diff --git a/CleanSpec.mk b/CleanSpec.mk
index 531e44e..1af439a 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -66,3 +66,9 @@
 $(call add-clean-step, find $(PRODUCT_OUT)/system $(PRODUCT_OUT)/vendor -type f -name "android\.hardware\.configstore\@1\.1*" -print0 | xargs -0 rm -f)
 $(call add-clean-step, find $(PRODUCT_OUT)/system $(PRODUCT_OUT)/vendor -type f -name "android\.hardware\.configstore*" -print0 | xargs -0 rm -f)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/seccomp_policy/configstore@1.0.policy)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/seccomp_policy/configstore@1.1.policy)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/bin/hw/android.hardware.configstore@1.1-service)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/init/android.hardware.configstore@1.1-service.rc)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/bin/hw/android.hardware.cas@1.0*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/init/android.hardware.cas@1.0*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/vintf/manifest/android.hardware.cas@1.0*)
diff --git a/audio/5.0/config/api/current.txt b/audio/5.0/config/api/current.txt
index b8dcb43..17f38c1 100644
--- a/audio/5.0/config/api/current.txt
+++ b/audio/5.0/config/api/current.txt
@@ -20,8 +20,10 @@
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_COMMUNICATION;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_DEFAULT;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_ECHO_REFERENCE;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_FM_TUNER;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_HDMI;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_HDMI_ARC;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_IP;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_LINE;
     enum_constant public static final audio.policy.configuration.V5_0.AudioDevice AUDIO_DEVICE_IN_LOOPBACK;
@@ -91,6 +93,10 @@
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_ERLC;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_HE_V1;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_HE_V2;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LATM;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LATM_HE_V1;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LATM_HE_V2;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LATM_LC;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LC;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LD;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AAC_LTP;
@@ -106,7 +112,9 @@
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_AMR_WB_PLUS;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_APE;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_APTX;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_APTX_ADAPTIVE;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_APTX_HD;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_CELT;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_DOLBY_TRUEHD;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_DSD;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_DTS;
@@ -122,6 +130,8 @@
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_HE_AAC_V2;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_IEC61937;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_LDAC;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_LHDC;
+    enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_LHDC_LL;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_MAT_1_0;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_MAT_2_0;
     enum_constant public static final audio.policy.configuration.V5_0.AudioFormat AUDIO_FORMAT_MAT_2_1;
@@ -187,6 +197,7 @@
   public static class DevicePorts.DevicePort {
     ctor public DevicePorts.DevicePort();
     method public String getAddress();
+    method public java.util.List<audio.policy.configuration.V5_0.AudioFormat> getEncodedFormats();
     method public audio.policy.configuration.V5_0.Gains getGains();
     method public java.util.List<audio.policy.configuration.V5_0.Profile> getProfile();
     method public audio.policy.configuration.V5_0.Role getRole();
@@ -194,6 +205,7 @@
     method public String getType();
     method public boolean get_default();
     method public void setAddress(String);
+    method public void setEncodedFormats(java.util.List<audio.policy.configuration.V5_0.AudioFormat>);
     method public void setGains(audio.policy.configuration.V5_0.Gains);
     method public void setRole(audio.policy.configuration.V5_0.Role);
     method public void setTagName(String);
diff --git a/audio/5.0/config/audio_policy_configuration.xsd b/audio/5.0/config/audio_policy_configuration.xsd
index b0927b2..ee3a437 100644
--- a/audio/5.0/config/audio_policy_configuration.xsd
+++ b/audio/5.0/config/audio_policy_configuration.xsd
@@ -277,6 +277,8 @@
             <xs:enumeration value="AUDIO_DEVICE_IN_PROXY"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_USB_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_BLE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_HDMI_ARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_ECHO_REFERENCE"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_DEFAULT"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_STUB"/>
         </xs:restriction>
@@ -364,6 +366,14 @@
             <xs:enumeration value="AUDIO_FORMAT_MAT_2_1"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_XHE"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_XHE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_CELT"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX_ADAPTIVE"/>
+            <xs:enumeration value="AUDIO_FORMAT_LHDC"/>
+            <xs:enumeration value="AUDIO_FORMAT_LHDC_LL"/>
         </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="extendableAudioFormat">
@@ -461,6 +471,8 @@
                             </xs:documentation>
                         </xs:annotation>
                     </xs:attribute>
+                    <xs:attribute name="encodedFormats" type="audioFormatsList" use="optional"
+                                  default="" />
                 </xs:complexType>
                 <xs:unique name="devicePortProfileUniqueness">
                     <xs:selector xpath="profile"/>
@@ -595,7 +607,7 @@
             <xs:element name="formats" type="surroundFormats"/>
         </xs:sequence>
     </xs:complexType>
-    <xs:simpleType name="surroundFormatsList">
+    <xs:simpleType name="audioFormatsList">
         <xs:list itemType="audioFormat" />
     </xs:simpleType>
     <xs:complexType name="surroundFormats">
@@ -603,7 +615,7 @@
             <xs:element name="format" minOccurs="0" maxOccurs="unbounded">
                 <xs:complexType>
                     <xs:attribute name="name" type="audioFormat" use="required"/>
-                    <xs:attribute name="subformats" type="surroundFormatsList" />
+                    <xs:attribute name="subformats" type="audioFormatsList" />
                 </xs:complexType>
             </xs:element>
         </xs:sequence>
diff --git a/audio/README b/audio/README
index 1f1e8e3..abe979c 100644
--- a/audio/README
+++ b/audio/README
@@ -1,48 +1,33 @@
 Directory structure of the audio HIDL related code.
 
 audio
-|-- 2.0              <== HIDL (.hal) can not be moved to fit the directory structure
-|                        because that would create a separate HAL
+|-- 2.0              <== core 2.0 HIDL API. .hal can not be moved into the core directory
+|                        because that would change its namespace and include path
 |-- 4.0              <== Version 4.0 of the core API
 |
-|-- common           <== code common to audio core and effect API
-|   |-- 2.0
-|   |   |-- default  <== code that wraps the legacy API
-|   |   `-- vts      <== vts of 2.0 core and effect API common code
-|   |-- 4.0
-|   |   |-- default
-|   |   `-- vts
-|   |-- ...          <== The future versions should continue this structure
-|   |   |-- default
-|   |   `-- vts
-|   `-- all_versions <== code common to all version of both core and effect API
-|       |-- default
-|       `-- vts      <== vts of core and effect API common version independent code
+|-- ...
 |
-|-- core           <== code relative to the core API
-|   |-- 2.0          <== 2.0 core API code (except .hal, see audio/2.0)
-|   |   |-- default
-|   |   `-- vts
+|-- common           <== code common to audio core and effect API
+|   |-- 2.0          <== HIDL API of V2
 |   |-- 4.0
-|   |   |-- default  <== default implementation of the core 4.0 api
-|   |   `-- vts      <== vts code of the 4.0 API
 |   |-- ...
-|   |   |-- default
-|   |   `-- vts
-|   `-- all_versions
-|       |-- default
-|       `-- vts      <== vts of core API common version independent code
+|   `-- all_versions <== code common to all version of both core and effect API
+|       |-- default  <== implementation shared code between core and effect impl
+|       |-- test     <== utilities used by tests
+|       `-- util     <== utilities used by both implementation and tests
+|
+|-- core             <== VTS and default implementation of the core API (not HIDL, see /audio/2.0))
+|   `-- all_versions <== Code is version independent through #if and separate files
+|       |-- default  <== code that wraps the legacy API
+|       `-- vts      <== vts of core API
+|           |-- 2.0  <== 2.0 specific tests and helpers
+|           |-- 4.0
+|           |-- ...
 |
 `-- effect           <== idem for the effect API
     |-- 2.0
-    |   |-- default
-    |   `-- vts
     |-- 4.0
-    |   |-- default
-    |   `-- vts
     |-- ...
-    |   |-- default
-    |   `-- vts
     `-- all_versions
         |-- default
         `-- vts
diff --git a/audio/common/2.0/default/Android.bp b/audio/common/2.0/default/Android.bp
deleted file mode 100644
index ac66479..0000000
--- a/audio/common/2.0/default/Android.bp
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright (C) 2016 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-cc_library_shared {
-    name: "android.hardware.audio.common@2.0-util",
-    defaults: ["hidl_defaults"],
-    vendor_available: true,
-    vndk: {
-        enabled: true,
-    },
-    srcs: [
-        "HidlUtils.cpp",
-    ],
-
-    export_include_dirs: ["."],
-
-    static_libs: [
-    ],
-
-    shared_libs: [
-        "liblog",
-        "libutils",
-        "libhidlbase",
-        "android.hardware.audio.common-util",
-        "android.hardware.audio.common@2.0",
-    ],
-    export_shared_lib_headers: [
-        "android.hardware.audio.common-util"
-    ],
-
-    header_libs: [
-        "libaudio_system_headers",
-        "libhardware_headers",
-    ],
-}
diff --git a/audio/common/2.0/default/HidlUtils.cpp b/audio/common/2.0/default/HidlUtils.cpp
deleted file mode 100644
index 9771b7b..0000000
--- a/audio/common/2.0/default/HidlUtils.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "HidlUtils.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <common/all-versions/default/HidlUtils.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/common/2.0/default/HidlUtils.h b/audio/common/2.0/default/HidlUtils.h
deleted file mode 100644
index 24543b1..0000000
--- a/audio/common/2.0/default/HidlUtils.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef android_hardware_audio_V2_0_Hidl_Utils_H_
-#define android_hardware_audio_V2_0_Hidl_Utils_H_
-
-#include <android/hardware/audio/common/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <common/all-versions/default/HidlUtils.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // android_hardware_audio_V2_0_Hidl_Utils_H_
diff --git a/audio/common/2.0/default/VersionUtils.h b/audio/common/2.0/default/VersionUtils.h
deleted file mode 100644
index 60d1f9c..0000000
--- a/audio/common/2.0/default/VersionUtils.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
-
-#include <android/hardware/audio/common/2.0/types.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace common {
-namespace V2_0 {
-namespace implementation {
-
-typedef common::V2_0::AudioDevice AudioDeviceBitfield;
-typedef common::V2_0::AudioChannelMask AudioChannelBitfield;
-typedef common::V2_0::AudioOutputFlag AudioOutputFlagBitfield;
-typedef common::V2_0::AudioInputFlag AudioInputFlagBitfield;
-
-}  // namespace implementation
-}  // namespace V2_0
-}  // namespace common
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
diff --git a/audio/common/4.0/default/Android.bp b/audio/common/4.0/default/Android.bp
deleted file mode 100644
index 57b2e01..0000000
--- a/audio/common/4.0/default/Android.bp
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright (C) 2018 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-cc_library_shared {
-    name: "android.hardware.audio.common@4.0-util",
-    defaults: ["hidl_defaults"],
-    vendor_available: true,
-    vndk: {
-        enabled: true,
-    },
-    srcs: [
-        "HidlUtils.cpp",
-    ],
-
-    export_include_dirs: ["."],
-
-    static_libs: [
-    ],
-
-    shared_libs: [
-        "liblog",
-        "libutils",
-        "libhidlbase",
-        "android.hardware.audio.common-util",
-        "android.hardware.audio.common@4.0",
-    ],
-    export_shared_lib_headers: [
-        "android.hardware.audio.common-util"
-    ],
-
-    header_libs: [
-        "libaudio_system_headers",
-        "libhardware_headers",
-    ],
-}
diff --git a/audio/common/4.0/default/HidlUtils.cpp b/audio/common/4.0/default/HidlUtils.cpp
deleted file mode 100644
index b66eff9..0000000
--- a/audio/common/4.0/default/HidlUtils.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "HidlUtils.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <common/all-versions/default/HidlUtils.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/common/4.0/default/HidlUtils.h b/audio/common/4.0/default/HidlUtils.h
deleted file mode 100644
index 91e6a9e..0000000
--- a/audio/common/4.0/default/HidlUtils.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef android_hardware_audio_V4_0_Hidl_Utils_H_
-#define android_hardware_audio_V4_0_Hidl_Utils_H_
-
-#include <android/hardware/audio/common/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <common/all-versions/default/HidlUtils.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // android_hardware_audio_V4_0_Hidl_Utils_H_
diff --git a/audio/common/4.0/default/OWNERS b/audio/common/4.0/default/OWNERS
deleted file mode 100644
index 6fdc97c..0000000
--- a/audio/common/4.0/default/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
diff --git a/audio/common/4.0/default/VersionUtils.h b/audio/common/4.0/default/VersionUtils.h
deleted file mode 100644
index b7f2aec..0000000
--- a/audio/common/4.0/default/VersionUtils.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
-
-#include <android/hardware/audio/common/4.0/types.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace common {
-namespace V4_0 {
-namespace implementation {
-
-typedef hidl_bitfield<common::V4_0::AudioDevice> AudioDeviceBitfield;
-typedef hidl_bitfield<common::V4_0::AudioChannelMask> AudioChannelBitfield;
-typedef hidl_bitfield<common::V4_0::AudioOutputFlag> AudioOutputFlagBitfield;
-typedef hidl_bitfield<common::V4_0::AudioInputFlag> AudioInputFlagBitfield;
-
-}  // namespace implementation
-}  // namespace V4_0
-}  // namespace common
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
diff --git a/audio/common/all-versions/default/Android.bp b/audio/common/all-versions/default/Android.bp
index 4a27bb7..c0bd34c 100644
--- a/audio/common/all-versions/default/Android.bp
+++ b/audio/common/all-versions/default/Android.bp
@@ -17,9 +17,6 @@
     name: "android.hardware.audio.common-util",
     defaults: ["hidl_defaults"],
     vendor_available: true,
-    vndk: {
-        enabled: true,
-    },
     srcs: [
         "EffectMap.cpp",
     ],
@@ -41,3 +38,72 @@
         "android.hardware.audio.common.util@all-versions",
     ]
 }
+
+cc_defaults {
+    name: "android.hardware.audio.common-util_default",
+    defaults: ["hidl_defaults"],
+
+    vendor_available: true,
+    srcs: [
+        "HidlUtils.cpp",
+    ],
+
+    export_include_dirs: ["."],
+
+    shared_libs: [
+        "liblog",
+        "libutils",
+        "libhidlbase",
+        "android.hardware.audio.common-util",
+    ],
+    export_shared_lib_headers: [
+        "android.hardware.audio.common-util"
+    ],
+
+    header_libs: [
+        "libaudio_system_headers",
+        "libhardware_headers",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.common@2.0-util",
+    defaults: ["android.hardware.audio.common-util_default"],
+
+    shared_libs: [
+        "android.hardware.audio.common@2.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.common@4.0-util",
+    defaults: ["android.hardware.audio.common-util_default"],
+
+    shared_libs: [
+        "android.hardware.audio.common@4.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.common@5.0-util",
+    defaults: ["android.hardware.audio.common-util_default"],
+
+    shared_libs: [
+        "android.hardware.audio.common@5.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
diff --git a/audio/common/all-versions/default/EffectMap.cpp b/audio/common/all-versions/default/EffectMap.cpp
index 7f8da1e..cb3e3d5 100644
--- a/audio/common/all-versions/default/EffectMap.cpp
+++ b/audio/common/all-versions/default/EffectMap.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/default/HidlUtils.cpp b/audio/common/all-versions/default/HidlUtils.cpp
new file mode 100644
index 0000000..08002c8
--- /dev/null
+++ b/audio/common/all-versions/default/HidlUtils.cpp
@@ -0,0 +1,353 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "HidlUtils.h"
+
+#include <common/all-versions/VersionUtils.h>
+#include <string.h>
+
+using ::android::hardware::audio::common::utils::EnumBitfield;
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace common {
+namespace CPP_VERSION {
+namespace implementation {
+
+void HidlUtils::audioConfigFromHal(const audio_config_t& halConfig, AudioConfig* config) {
+    config->sampleRateHz = halConfig.sample_rate;
+    config->channelMask = EnumBitfield<AudioChannelMask>(halConfig.channel_mask);
+    config->format = AudioFormat(halConfig.format);
+    audioOffloadInfoFromHal(halConfig.offload_info, &config->offloadInfo);
+    config->frameCount = halConfig.frame_count;
+}
+
+void HidlUtils::audioConfigToHal(const AudioConfig& config, audio_config_t* halConfig) {
+    memset(halConfig, 0, sizeof(audio_config_t));
+    halConfig->sample_rate = config.sampleRateHz;
+    halConfig->channel_mask = static_cast<audio_channel_mask_t>(config.channelMask);
+    halConfig->format = static_cast<audio_format_t>(config.format);
+    audioOffloadInfoToHal(config.offloadInfo, &halConfig->offload_info);
+    halConfig->frame_count = config.frameCount;
+}
+
+void HidlUtils::audioGainConfigFromHal(const struct audio_gain_config& halConfig,
+                                       AudioGainConfig* config) {
+    config->index = halConfig.index;
+    config->mode = EnumBitfield<AudioGainMode>(halConfig.mode);
+    config->channelMask = EnumBitfield<AudioChannelMask>(halConfig.channel_mask);
+    for (size_t i = 0; i < sizeof(audio_channel_mask_t) * 8; ++i) {
+        config->values[i] = halConfig.values[i];
+    }
+    config->rampDurationMs = halConfig.ramp_duration_ms;
+}
+
+void HidlUtils::audioGainConfigToHal(const AudioGainConfig& config,
+                                     struct audio_gain_config* halConfig) {
+    halConfig->index = config.index;
+    halConfig->mode = static_cast<audio_gain_mode_t>(config.mode);
+    halConfig->channel_mask = static_cast<audio_channel_mask_t>(config.channelMask);
+    memset(halConfig->values, 0, sizeof(halConfig->values));
+    for (size_t i = 0; i < sizeof(audio_channel_mask_t) * 8; ++i) {
+        halConfig->values[i] = config.values[i];
+    }
+    halConfig->ramp_duration_ms = config.rampDurationMs;
+}
+
+void HidlUtils::audioGainFromHal(const struct audio_gain& halGain, AudioGain* gain) {
+    gain->mode = EnumBitfield<AudioGainMode>(halGain.mode);
+    gain->channelMask = EnumBitfield<AudioChannelMask>(halGain.channel_mask);
+    gain->minValue = halGain.min_value;
+    gain->maxValue = halGain.max_value;
+    gain->defaultValue = halGain.default_value;
+    gain->stepValue = halGain.step_value;
+    gain->minRampMs = halGain.min_ramp_ms;
+    gain->maxRampMs = halGain.max_ramp_ms;
+}
+
+void HidlUtils::audioGainToHal(const AudioGain& gain, struct audio_gain* halGain) {
+    halGain->mode = static_cast<audio_gain_mode_t>(gain.mode);
+    halGain->channel_mask = static_cast<audio_channel_mask_t>(gain.channelMask);
+    halGain->min_value = gain.minValue;
+    halGain->max_value = gain.maxValue;
+    halGain->default_value = gain.defaultValue;
+    halGain->step_value = gain.stepValue;
+    halGain->min_ramp_ms = gain.minRampMs;
+    halGain->max_ramp_ms = gain.maxRampMs;
+}
+
+AudioUsage HidlUtils::audioUsageFromHal(const audio_usage_t halUsage) {
+    switch (halUsage) {
+        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
+        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
+        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
+        case AUDIO_USAGE_NOTIFICATION_EVENT:
+            return AudioUsage::NOTIFICATION;
+        default:
+            return static_cast<AudioUsage>(halUsage);
+    }
+}
+
+audio_usage_t HidlUtils::audioUsageToHal(const AudioUsage usage) {
+    return static_cast<audio_usage_t>(usage);
+}
+
+void HidlUtils::audioOffloadInfoFromHal(const audio_offload_info_t& halOffload,
+                                        AudioOffloadInfo* offload) {
+    offload->sampleRateHz = halOffload.sample_rate;
+    offload->channelMask = EnumBitfield<AudioChannelMask>(halOffload.channel_mask);
+    offload->format = AudioFormat(halOffload.format);
+    offload->streamType = AudioStreamType(halOffload.stream_type);
+    offload->bitRatePerSecond = halOffload.bit_rate;
+    offload->durationMicroseconds = halOffload.duration_us;
+    offload->hasVideo = halOffload.has_video;
+    offload->isStreaming = halOffload.is_streaming;
+    offload->bitWidth = halOffload.bit_width;
+    offload->bufferSize = halOffload.offload_buffer_size;
+    offload->usage = audioUsageFromHal(halOffload.usage);
+}
+
+void HidlUtils::audioOffloadInfoToHal(const AudioOffloadInfo& offload,
+                                      audio_offload_info_t* halOffload) {
+    *halOffload = AUDIO_INFO_INITIALIZER;
+    halOffload->sample_rate = offload.sampleRateHz;
+    halOffload->channel_mask = static_cast<audio_channel_mask_t>(offload.channelMask);
+    halOffload->format = static_cast<audio_format_t>(offload.format);
+    halOffload->stream_type = static_cast<audio_stream_type_t>(offload.streamType);
+    halOffload->bit_rate = offload.bitRatePerSecond;
+    halOffload->duration_us = offload.durationMicroseconds;
+    halOffload->has_video = offload.hasVideo;
+    halOffload->is_streaming = offload.isStreaming;
+    halOffload->bit_width = offload.bitWidth;
+    halOffload->offload_buffer_size = offload.bufferSize;
+    halOffload->usage = audioUsageToHal(offload.usage);
+}
+
+void HidlUtils::audioPortConfigFromHal(const struct audio_port_config& halConfig,
+                                       AudioPortConfig* config) {
+    config->id = halConfig.id;
+    config->role = AudioPortRole(halConfig.role);
+    config->type = AudioPortType(halConfig.type);
+    config->configMask = EnumBitfield<AudioPortConfigMask>(halConfig.config_mask);
+    config->sampleRateHz = halConfig.sample_rate;
+    config->channelMask = EnumBitfield<AudioChannelMask>(halConfig.channel_mask);
+    config->format = AudioFormat(halConfig.format);
+    audioGainConfigFromHal(halConfig.gain, &config->gain);
+    switch (halConfig.type) {
+        case AUDIO_PORT_TYPE_NONE:
+            break;
+        case AUDIO_PORT_TYPE_DEVICE: {
+            config->ext.device.hwModule = halConfig.ext.device.hw_module;
+            config->ext.device.type = AudioDevice(halConfig.ext.device.type);
+            memcpy(config->ext.device.address.data(), halConfig.ext.device.address,
+                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
+            break;
+        }
+        case AUDIO_PORT_TYPE_MIX: {
+            config->ext.mix.hwModule = halConfig.ext.mix.hw_module;
+            config->ext.mix.ioHandle = halConfig.ext.mix.handle;
+            if (halConfig.role == AUDIO_PORT_ROLE_SOURCE) {
+                config->ext.mix.useCase.stream = AudioStreamType(halConfig.ext.mix.usecase.stream);
+            } else if (halConfig.role == AUDIO_PORT_ROLE_SINK) {
+                config->ext.mix.useCase.source = AudioSource(halConfig.ext.mix.usecase.source);
+            }
+            break;
+        }
+        case AUDIO_PORT_TYPE_SESSION: {
+            config->ext.session.session = halConfig.ext.session.session;
+            break;
+        }
+    }
+}
+
+void HidlUtils::audioPortConfigToHal(const AudioPortConfig& config,
+                                     struct audio_port_config* halConfig) {
+    memset(halConfig, 0, sizeof(audio_port_config));
+    halConfig->id = config.id;
+    halConfig->role = static_cast<audio_port_role_t>(config.role);
+    halConfig->type = static_cast<audio_port_type_t>(config.type);
+    halConfig->config_mask = static_cast<unsigned int>(config.configMask);
+    halConfig->sample_rate = config.sampleRateHz;
+    halConfig->channel_mask = static_cast<audio_channel_mask_t>(config.channelMask);
+    halConfig->format = static_cast<audio_format_t>(config.format);
+    audioGainConfigToHal(config.gain, &halConfig->gain);
+    switch (config.type) {
+        case AudioPortType::NONE:
+            break;
+        case AudioPortType::DEVICE: {
+            halConfig->ext.device.hw_module = config.ext.device.hwModule;
+            halConfig->ext.device.type = static_cast<audio_devices_t>(config.ext.device.type);
+            memcpy(halConfig->ext.device.address, config.ext.device.address.data(),
+                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
+            break;
+        }
+        case AudioPortType::MIX: {
+            halConfig->ext.mix.hw_module = config.ext.mix.hwModule;
+            halConfig->ext.mix.handle = config.ext.mix.ioHandle;
+            if (config.role == AudioPortRole::SOURCE) {
+                halConfig->ext.mix.usecase.stream =
+                    static_cast<audio_stream_type_t>(config.ext.mix.useCase.stream);
+            } else if (config.role == AudioPortRole::SINK) {
+                halConfig->ext.mix.usecase.source =
+                    static_cast<audio_source_t>(config.ext.mix.useCase.source);
+            }
+            break;
+        }
+        case AudioPortType::SESSION: {
+            halConfig->ext.session.session =
+                static_cast<audio_session_t>(config.ext.session.session);
+            break;
+        }
+    }
+}
+
+void HidlUtils::audioPortConfigsFromHal(unsigned int numHalConfigs,
+                                        const struct audio_port_config* halConfigs,
+                                        hidl_vec<AudioPortConfig>* configs) {
+    configs->resize(numHalConfigs);
+    for (unsigned int i = 0; i < numHalConfigs; ++i) {
+        audioPortConfigFromHal(halConfigs[i], &(*configs)[i]);
+    }
+}
+
+std::unique_ptr<audio_port_config[]> HidlUtils::audioPortConfigsToHal(
+    const hidl_vec<AudioPortConfig>& configs) {
+    std::unique_ptr<audio_port_config[]> halConfigs(new audio_port_config[configs.size()]);
+    for (size_t i = 0; i < configs.size(); ++i) {
+        audioPortConfigToHal(configs[i], &halConfigs[i]);
+    }
+    return halConfigs;
+}
+
+void HidlUtils::audioPortFromHal(const struct audio_port& halPort, AudioPort* port) {
+    port->id = halPort.id;
+    port->role = AudioPortRole(halPort.role);
+    port->type = AudioPortType(halPort.type);
+    port->name.setToExternal(halPort.name, strlen(halPort.name));
+    port->sampleRates.resize(halPort.num_sample_rates);
+    for (size_t i = 0; i < halPort.num_sample_rates; ++i) {
+        port->sampleRates[i] = halPort.sample_rates[i];
+    }
+    port->channelMasks.resize(halPort.num_channel_masks);
+    for (size_t i = 0; i < halPort.num_channel_masks; ++i) {
+        port->channelMasks[i] = EnumBitfield<AudioChannelMask>(halPort.channel_masks[i]);
+    }
+    port->formats.resize(halPort.num_formats);
+    for (size_t i = 0; i < halPort.num_formats; ++i) {
+        port->formats[i] = AudioFormat(halPort.formats[i]);
+    }
+    port->gains.resize(halPort.num_gains);
+    for (size_t i = 0; i < halPort.num_gains; ++i) {
+        audioGainFromHal(halPort.gains[i], &port->gains[i]);
+    }
+    audioPortConfigFromHal(halPort.active_config, &port->activeConfig);
+    switch (halPort.type) {
+        case AUDIO_PORT_TYPE_NONE:
+            break;
+        case AUDIO_PORT_TYPE_DEVICE: {
+            port->ext.device.hwModule = halPort.ext.device.hw_module;
+            port->ext.device.type = AudioDevice(halPort.ext.device.type);
+            memcpy(port->ext.device.address.data(), halPort.ext.device.address,
+                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
+            break;
+        }
+        case AUDIO_PORT_TYPE_MIX: {
+            port->ext.mix.hwModule = halPort.ext.mix.hw_module;
+            port->ext.mix.ioHandle = halPort.ext.mix.handle;
+            port->ext.mix.latencyClass = AudioMixLatencyClass(halPort.ext.mix.latency_class);
+            break;
+        }
+        case AUDIO_PORT_TYPE_SESSION: {
+            port->ext.session.session = halPort.ext.session.session;
+            break;
+        }
+    }
+}
+
+void HidlUtils::audioPortToHal(const AudioPort& port, struct audio_port* halPort) {
+    memset(halPort, 0, sizeof(audio_port));
+    halPort->id = port.id;
+    halPort->role = static_cast<audio_port_role_t>(port.role);
+    halPort->type = static_cast<audio_port_type_t>(port.type);
+    strncpy(halPort->name, port.name.c_str(), AUDIO_PORT_MAX_NAME_LEN);
+    halPort->name[AUDIO_PORT_MAX_NAME_LEN - 1] = '\0';
+    halPort->num_sample_rates =
+        std::min(port.sampleRates.size(), static_cast<size_t>(AUDIO_PORT_MAX_SAMPLING_RATES));
+    for (size_t i = 0; i < halPort->num_sample_rates; ++i) {
+        halPort->sample_rates[i] = port.sampleRates[i];
+    }
+    halPort->num_channel_masks =
+        std::min(port.channelMasks.size(), static_cast<size_t>(AUDIO_PORT_MAX_CHANNEL_MASKS));
+    for (size_t i = 0; i < halPort->num_channel_masks; ++i) {
+        halPort->channel_masks[i] = static_cast<audio_channel_mask_t>(port.channelMasks[i]);
+    }
+    halPort->num_formats =
+        std::min(port.formats.size(), static_cast<size_t>(AUDIO_PORT_MAX_FORMATS));
+    for (size_t i = 0; i < halPort->num_formats; ++i) {
+        halPort->formats[i] = static_cast<audio_format_t>(port.formats[i]);
+    }
+    halPort->num_gains = std::min(port.gains.size(), static_cast<size_t>(AUDIO_PORT_MAX_GAINS));
+    for (size_t i = 0; i < halPort->num_gains; ++i) {
+        audioGainToHal(port.gains[i], &halPort->gains[i]);
+    }
+    audioPortConfigToHal(port.activeConfig, &halPort->active_config);
+    switch (port.type) {
+        case AudioPortType::NONE:
+            break;
+        case AudioPortType::DEVICE: {
+            halPort->ext.device.hw_module = port.ext.device.hwModule;
+            halPort->ext.device.type = static_cast<audio_devices_t>(port.ext.device.type);
+            memcpy(halPort->ext.device.address, port.ext.device.address.data(),
+                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
+            break;
+        }
+        case AudioPortType::MIX: {
+            halPort->ext.mix.hw_module = port.ext.mix.hwModule;
+            halPort->ext.mix.handle = port.ext.mix.ioHandle;
+            halPort->ext.mix.latency_class =
+                static_cast<audio_mix_latency_class_t>(port.ext.mix.latencyClass);
+            break;
+        }
+        case AudioPortType::SESSION: {
+            halPort->ext.session.session = static_cast<audio_session_t>(port.ext.session.session);
+            break;
+        }
+    }
+}
+
+void HidlUtils::uuidFromHal(const audio_uuid_t& halUuid, Uuid* uuid) {
+    uuid->timeLow = halUuid.timeLow;
+    uuid->timeMid = halUuid.timeMid;
+    uuid->versionAndTimeHigh = halUuid.timeHiAndVersion;
+    uuid->variantAndClockSeqHigh = halUuid.clockSeq;
+    memcpy(uuid->node.data(), halUuid.node, uuid->node.size());
+}
+
+void HidlUtils::uuidToHal(const Uuid& uuid, audio_uuid_t* halUuid) {
+    halUuid->timeLow = uuid.timeLow;
+    halUuid->timeMid = uuid.timeMid;
+    halUuid->timeHiAndVersion = uuid.versionAndTimeHigh;
+    halUuid->clockSeq = uuid.variantAndClockSeqHigh;
+    memcpy(halUuid->node, uuid.node.data(), uuid.node.size());
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace common
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/common/all-versions/default/HidlUtils.h b/audio/common/all-versions/default/HidlUtils.h
new file mode 100644
index 0000000..758a7f4
--- /dev/null
+++ b/audio/common/all-versions/default/HidlUtils.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_audio_Hidl_Utils_H_
+#define android_hardware_audio_Hidl_Utils_H_
+
+#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+
+#include <memory>
+
+#include <system/audio.h>
+
+using ::android::hardware::hidl_vec;
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace common {
+namespace CPP_VERSION {
+namespace implementation {
+
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+
+class HidlUtils {
+   public:
+    static void audioConfigFromHal(const audio_config_t& halConfig, AudioConfig* config);
+    static void audioConfigToHal(const AudioConfig& config, audio_config_t* halConfig);
+    static void audioGainConfigFromHal(const struct audio_gain_config& halConfig,
+                                       AudioGainConfig* config);
+    static void audioGainConfigToHal(const AudioGainConfig& config,
+                                     struct audio_gain_config* halConfig);
+    static void audioGainFromHal(const struct audio_gain& halGain, AudioGain* gain);
+    static void audioGainToHal(const AudioGain& gain, struct audio_gain* halGain);
+    static AudioUsage audioUsageFromHal(const audio_usage_t halUsage);
+    static audio_usage_t audioUsageToHal(const AudioUsage usage);
+    static void audioOffloadInfoFromHal(const audio_offload_info_t& halOffload,
+                                        AudioOffloadInfo* offload);
+    static void audioOffloadInfoToHal(const AudioOffloadInfo& offload,
+                                      audio_offload_info_t* halOffload);
+    static void audioPortConfigFromHal(const struct audio_port_config& halConfig,
+                                       AudioPortConfig* config);
+    static void audioPortConfigToHal(const AudioPortConfig& config,
+                                     struct audio_port_config* halConfig);
+    static void audioPortConfigsFromHal(unsigned int numHalConfigs,
+                                        const struct audio_port_config* halConfigs,
+                                        hidl_vec<AudioPortConfig>* configs);
+    static std::unique_ptr<audio_port_config[]> audioPortConfigsToHal(
+        const hidl_vec<AudioPortConfig>& configs);
+    static void audioPortFromHal(const struct audio_port& halPort, AudioPort* port);
+    static void audioPortToHal(const AudioPort& port, struct audio_port* halPort);
+    static void uuidFromHal(const audio_uuid_t& halUuid, Uuid* uuid);
+    static void uuidToHal(const Uuid& uuid, audio_uuid_t* halUuid);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace common
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_audio_Hidl_Utils_H_
diff --git a/audio/common/2.0/default/OWNERS b/audio/common/all-versions/default/OWNERS
similarity index 100%
rename from audio/common/2.0/default/OWNERS
rename to audio/common/all-versions/default/OWNERS
diff --git a/audio/common/all-versions/default/VersionUtils.h b/audio/common/all-versions/default/VersionUtils.h
new file mode 100644
index 0000000..e7755b1
--- /dev/null
+++ b/audio/common/all-versions/default/VersionUtils.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
+
+#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace common {
+namespace CPP_VERSION {
+namespace implementation {
+
+#if MAJOR_VERSION == 2
+typedef common::CPP_VERSION::AudioDevice AudioDeviceBitfield;
+typedef common::CPP_VERSION::AudioChannelMask AudioChannelBitfield;
+typedef common::CPP_VERSION::AudioOutputFlag AudioOutputFlagBitfield;
+typedef common::CPP_VERSION::AudioInputFlag AudioInputFlagBitfield;
+#elif MAJOR_VERSION >= 4
+typedef hidl_bitfield<common::CPP_VERSION::AudioDevice> AudioDeviceBitfield;
+typedef hidl_bitfield<common::CPP_VERSION::AudioChannelMask> AudioChannelBitfield;
+typedef hidl_bitfield<common::CPP_VERSION::AudioOutputFlag> AudioOutputFlagBitfield;
+typedef hidl_bitfield<common::CPP_VERSION::AudioInputFlag> AudioInputFlagBitfield;
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace common
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_VERSION_UTILS_H
diff --git a/audio/common/all-versions/default/include/common/all-versions/default/EffectMap.h b/audio/common/all-versions/default/include/common/all-versions/default/EffectMap.h
index 547c6d5..7f630bf 100644
--- a/audio/common/all-versions/default/include/common/all-versions/default/EffectMap.h
+++ b/audio/common/all-versions/default/include/common/all-versions/default/EffectMap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/default/include/common/all-versions/default/HidlUtils.h b/audio/common/all-versions/default/include/common/all-versions/default/HidlUtils.h
deleted file mode 100644
index f9a5697..0000000
--- a/audio/common/all-versions/default/include/common/all-versions/default/HidlUtils.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef AUDIO_HAL_VERSION
-#error "AUDIO_HAL_VERSION must be set before including this file."
-#endif
-
-#include <memory>
-
-#include <system/audio.h>
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioGain;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioGainConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioOffloadInfo;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPort;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPortConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::Uuid;
-using ::android::hardware::hidl_vec;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace common {
-namespace AUDIO_HAL_VERSION {
-
-class HidlUtils {
-   public:
-    static void audioConfigFromHal(const audio_config_t& halConfig, AudioConfig* config);
-    static void audioConfigToHal(const AudioConfig& config, audio_config_t* halConfig);
-    static void audioGainConfigFromHal(const struct audio_gain_config& halConfig,
-                                       AudioGainConfig* config);
-    static void audioGainConfigToHal(const AudioGainConfig& config,
-                                     struct audio_gain_config* halConfig);
-    static void audioGainFromHal(const struct audio_gain& halGain, AudioGain* gain);
-    static void audioGainToHal(const AudioGain& gain, struct audio_gain* halGain);
-    static AudioUsage audioUsageFromHal(const audio_usage_t halUsage);
-    static audio_usage_t audioUsageToHal(const AudioUsage usage);
-    static void audioOffloadInfoFromHal(const audio_offload_info_t& halOffload,
-                                        AudioOffloadInfo* offload);
-    static void audioOffloadInfoToHal(const AudioOffloadInfo& offload,
-                                      audio_offload_info_t* halOffload);
-    static void audioPortConfigFromHal(const struct audio_port_config& halConfig,
-                                       AudioPortConfig* config);
-    static void audioPortConfigToHal(const AudioPortConfig& config,
-                                     struct audio_port_config* halConfig);
-    static void audioPortConfigsFromHal(unsigned int numHalConfigs,
-                                        const struct audio_port_config* halConfigs,
-                                        hidl_vec<AudioPortConfig>* configs);
-    static std::unique_ptr<audio_port_config[]> audioPortConfigsToHal(
-        const hidl_vec<AudioPortConfig>& configs);
-    static void audioPortFromHal(const struct audio_port& halPort, AudioPort* port);
-    static void audioPortToHal(const AudioPort& port, struct audio_port* halPort);
-    static void uuidFromHal(const audio_uuid_t& halUuid, Uuid* uuid);
-    static void uuidToHal(const Uuid& uuid, audio_uuid_t* halUuid);
-};
-
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace common
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/common/all-versions/default/include/common/all-versions/default/HidlUtils.impl.h b/audio/common/all-versions/default/include/common/all-versions/default/HidlUtils.impl.h
deleted file mode 100644
index 8ab7350..0000000
--- a/audio/common/all-versions/default/include/common/all-versions/default/HidlUtils.impl.h
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef AUDIO_HAL_VERSION
-#error "AUDIO_HAL_VERSION must be set before including this file."
-#endif
-
-#include <common/all-versions/VersionUtils.h>
-#include <string.h>
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioChannelMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioFormat;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioGainMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMixLatencyClass;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPortConfigMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPortRole;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPortType;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioStreamType;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioUsage;
-
-using ::android::hardware::audio::common::utils::mkEnumConverter;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace common {
-namespace AUDIO_HAL_VERSION {
-
-void HidlUtils::audioConfigFromHal(const audio_config_t& halConfig, AudioConfig* config) {
-    config->sampleRateHz = halConfig.sample_rate;
-    config->channelMask = mkEnumConverter<AudioChannelMask>(halConfig.channel_mask);
-    config->format = AudioFormat(halConfig.format);
-    audioOffloadInfoFromHal(halConfig.offload_info, &config->offloadInfo);
-    config->frameCount = halConfig.frame_count;
-}
-
-void HidlUtils::audioConfigToHal(const AudioConfig& config, audio_config_t* halConfig) {
-    memset(halConfig, 0, sizeof(audio_config_t));
-    halConfig->sample_rate = config.sampleRateHz;
-    halConfig->channel_mask = static_cast<audio_channel_mask_t>(config.channelMask);
-    halConfig->format = static_cast<audio_format_t>(config.format);
-    audioOffloadInfoToHal(config.offloadInfo, &halConfig->offload_info);
-    halConfig->frame_count = config.frameCount;
-}
-
-void HidlUtils::audioGainConfigFromHal(const struct audio_gain_config& halConfig,
-                                       AudioGainConfig* config) {
-    config->index = halConfig.index;
-    config->mode = mkEnumConverter<AudioGainMode>(halConfig.mode);
-    config->channelMask = mkEnumConverter<AudioChannelMask>(halConfig.channel_mask);
-    for (size_t i = 0; i < sizeof(audio_channel_mask_t) * 8; ++i) {
-        config->values[i] = halConfig.values[i];
-    }
-    config->rampDurationMs = halConfig.ramp_duration_ms;
-}
-
-void HidlUtils::audioGainConfigToHal(const AudioGainConfig& config,
-                                     struct audio_gain_config* halConfig) {
-    halConfig->index = config.index;
-    halConfig->mode = static_cast<audio_gain_mode_t>(config.mode);
-    halConfig->channel_mask = static_cast<audio_channel_mask_t>(config.channelMask);
-    memset(halConfig->values, 0, sizeof(halConfig->values));
-    for (size_t i = 0; i < sizeof(audio_channel_mask_t) * 8; ++i) {
-        halConfig->values[i] = config.values[i];
-    }
-    halConfig->ramp_duration_ms = config.rampDurationMs;
-}
-
-void HidlUtils::audioGainFromHal(const struct audio_gain& halGain, AudioGain* gain) {
-    gain->mode = mkEnumConverter<AudioGainMode>(halGain.mode);
-    gain->channelMask = mkEnumConverter<AudioChannelMask>(halGain.channel_mask);
-    gain->minValue = halGain.min_value;
-    gain->maxValue = halGain.max_value;
-    gain->defaultValue = halGain.default_value;
-    gain->stepValue = halGain.step_value;
-    gain->minRampMs = halGain.min_ramp_ms;
-    gain->maxRampMs = halGain.max_ramp_ms;
-}
-
-void HidlUtils::audioGainToHal(const AudioGain& gain, struct audio_gain* halGain) {
-    halGain->mode = static_cast<audio_gain_mode_t>(gain.mode);
-    halGain->channel_mask = static_cast<audio_channel_mask_t>(gain.channelMask);
-    halGain->min_value = gain.minValue;
-    halGain->max_value = gain.maxValue;
-    halGain->default_value = gain.defaultValue;
-    halGain->step_value = gain.stepValue;
-    halGain->min_ramp_ms = gain.minRampMs;
-    halGain->max_ramp_ms = gain.maxRampMs;
-}
-
-AudioUsage HidlUtils::audioUsageFromHal(const audio_usage_t halUsage) {
-    switch (halUsage) {
-        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
-        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
-        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
-        case AUDIO_USAGE_NOTIFICATION_EVENT:
-            return AudioUsage::NOTIFICATION;
-        default:
-            return static_cast<AudioUsage>(halUsage);
-    }
-}
-
-audio_usage_t HidlUtils::audioUsageToHal(const AudioUsage usage) {
-    return static_cast<audio_usage_t>(usage);
-}
-
-void HidlUtils::audioOffloadInfoFromHal(const audio_offload_info_t& halOffload,
-                                        AudioOffloadInfo* offload) {
-    offload->sampleRateHz = halOffload.sample_rate;
-    offload->channelMask = mkEnumConverter<AudioChannelMask>(halOffload.channel_mask);
-    offload->format = AudioFormat(halOffload.format);
-    offload->streamType = AudioStreamType(halOffload.stream_type);
-    offload->bitRatePerSecond = halOffload.bit_rate;
-    offload->durationMicroseconds = halOffload.duration_us;
-    offload->hasVideo = halOffload.has_video;
-    offload->isStreaming = halOffload.is_streaming;
-    offload->bitWidth = halOffload.bit_width;
-    offload->bufferSize = halOffload.offload_buffer_size;
-    offload->usage = audioUsageFromHal(halOffload.usage);
-}
-
-void HidlUtils::audioOffloadInfoToHal(const AudioOffloadInfo& offload,
-                                      audio_offload_info_t* halOffload) {
-    *halOffload = AUDIO_INFO_INITIALIZER;
-    halOffload->sample_rate = offload.sampleRateHz;
-    halOffload->channel_mask = static_cast<audio_channel_mask_t>(offload.channelMask);
-    halOffload->format = static_cast<audio_format_t>(offload.format);
-    halOffload->stream_type = static_cast<audio_stream_type_t>(offload.streamType);
-    halOffload->bit_rate = offload.bitRatePerSecond;
-    halOffload->duration_us = offload.durationMicroseconds;
-    halOffload->has_video = offload.hasVideo;
-    halOffload->is_streaming = offload.isStreaming;
-    halOffload->bit_width = offload.bitWidth;
-    halOffload->offload_buffer_size = offload.bufferSize;
-    halOffload->usage = audioUsageToHal(offload.usage);
-}
-
-void HidlUtils::audioPortConfigFromHal(const struct audio_port_config& halConfig,
-                                       AudioPortConfig* config) {
-    config->id = halConfig.id;
-    config->role = AudioPortRole(halConfig.role);
-    config->type = AudioPortType(halConfig.type);
-    config->configMask = mkEnumConverter<AudioPortConfigMask>(halConfig.config_mask);
-    config->sampleRateHz = halConfig.sample_rate;
-    config->channelMask = mkEnumConverter<AudioChannelMask>(halConfig.channel_mask);
-    config->format = AudioFormat(halConfig.format);
-    audioGainConfigFromHal(halConfig.gain, &config->gain);
-    switch (halConfig.type) {
-        case AUDIO_PORT_TYPE_NONE:
-            break;
-        case AUDIO_PORT_TYPE_DEVICE: {
-            config->ext.device.hwModule = halConfig.ext.device.hw_module;
-            config->ext.device.type = AudioDevice(halConfig.ext.device.type);
-            memcpy(config->ext.device.address.data(), halConfig.ext.device.address,
-                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
-            break;
-        }
-        case AUDIO_PORT_TYPE_MIX: {
-            config->ext.mix.hwModule = halConfig.ext.mix.hw_module;
-            config->ext.mix.ioHandle = halConfig.ext.mix.handle;
-            if (halConfig.role == AUDIO_PORT_ROLE_SOURCE) {
-                config->ext.mix.useCase.source = AudioSource(halConfig.ext.mix.usecase.source);
-            } else if (halConfig.role == AUDIO_PORT_ROLE_SINK) {
-                config->ext.mix.useCase.stream = AudioStreamType(halConfig.ext.mix.usecase.stream);
-            }
-            break;
-        }
-        case AUDIO_PORT_TYPE_SESSION: {
-            config->ext.session.session = halConfig.ext.session.session;
-            break;
-        }
-    }
-}
-
-void HidlUtils::audioPortConfigToHal(const AudioPortConfig& config,
-                                     struct audio_port_config* halConfig) {
-    memset(halConfig, 0, sizeof(audio_port_config));
-    halConfig->id = config.id;
-    halConfig->role = static_cast<audio_port_role_t>(config.role);
-    halConfig->type = static_cast<audio_port_type_t>(config.type);
-    halConfig->config_mask = static_cast<unsigned int>(config.configMask);
-    halConfig->sample_rate = config.sampleRateHz;
-    halConfig->channel_mask = static_cast<audio_channel_mask_t>(config.channelMask);
-    halConfig->format = static_cast<audio_format_t>(config.format);
-    audioGainConfigToHal(config.gain, &halConfig->gain);
-    switch (config.type) {
-        case AudioPortType::NONE:
-            break;
-        case AudioPortType::DEVICE: {
-            halConfig->ext.device.hw_module = config.ext.device.hwModule;
-            halConfig->ext.device.type = static_cast<audio_devices_t>(config.ext.device.type);
-            memcpy(halConfig->ext.device.address, config.ext.device.address.data(),
-                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
-            break;
-        }
-        case AudioPortType::MIX: {
-            halConfig->ext.mix.hw_module = config.ext.mix.hwModule;
-            halConfig->ext.mix.handle = config.ext.mix.ioHandle;
-            if (config.role == AudioPortRole::SOURCE) {
-                halConfig->ext.mix.usecase.source =
-                    static_cast<audio_source_t>(config.ext.mix.useCase.source);
-            } else if (config.role == AudioPortRole::SINK) {
-                halConfig->ext.mix.usecase.stream =
-                    static_cast<audio_stream_type_t>(config.ext.mix.useCase.stream);
-            }
-            break;
-        }
-        case AudioPortType::SESSION: {
-            halConfig->ext.session.session =
-                static_cast<audio_session_t>(config.ext.session.session);
-            break;
-        }
-    }
-}
-
-void HidlUtils::audioPortConfigsFromHal(unsigned int numHalConfigs,
-                                        const struct audio_port_config* halConfigs,
-                                        hidl_vec<AudioPortConfig>* configs) {
-    configs->resize(numHalConfigs);
-    for (unsigned int i = 0; i < numHalConfigs; ++i) {
-        audioPortConfigFromHal(halConfigs[i], &(*configs)[i]);
-    }
-}
-
-std::unique_ptr<audio_port_config[]> HidlUtils::audioPortConfigsToHal(
-    const hidl_vec<AudioPortConfig>& configs) {
-    std::unique_ptr<audio_port_config[]> halConfigs(new audio_port_config[configs.size()]);
-    for (size_t i = 0; i < configs.size(); ++i) {
-        audioPortConfigToHal(configs[i], &halConfigs[i]);
-    }
-    return halConfigs;
-}
-
-void HidlUtils::audioPortFromHal(const struct audio_port& halPort, AudioPort* port) {
-    port->id = halPort.id;
-    port->role = AudioPortRole(halPort.role);
-    port->type = AudioPortType(halPort.type);
-    port->name.setToExternal(halPort.name, strlen(halPort.name));
-    port->sampleRates.resize(halPort.num_sample_rates);
-    for (size_t i = 0; i < halPort.num_sample_rates; ++i) {
-        port->sampleRates[i] = halPort.sample_rates[i];
-    }
-    port->channelMasks.resize(halPort.num_channel_masks);
-    for (size_t i = 0; i < halPort.num_channel_masks; ++i) {
-        port->channelMasks[i] = mkEnumConverter<AudioChannelMask>(halPort.channel_masks[i]);
-    }
-    port->formats.resize(halPort.num_formats);
-    for (size_t i = 0; i < halPort.num_formats; ++i) {
-        port->formats[i] = AudioFormat(halPort.formats[i]);
-    }
-    port->gains.resize(halPort.num_gains);
-    for (size_t i = 0; i < halPort.num_gains; ++i) {
-        audioGainFromHal(halPort.gains[i], &port->gains[i]);
-    }
-    audioPortConfigFromHal(halPort.active_config, &port->activeConfig);
-    switch (halPort.type) {
-        case AUDIO_PORT_TYPE_NONE:
-            break;
-        case AUDIO_PORT_TYPE_DEVICE: {
-            port->ext.device.hwModule = halPort.ext.device.hw_module;
-            port->ext.device.type = AudioDevice(halPort.ext.device.type);
-            memcpy(port->ext.device.address.data(), halPort.ext.device.address,
-                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
-            break;
-        }
-        case AUDIO_PORT_TYPE_MIX: {
-            port->ext.mix.hwModule = halPort.ext.mix.hw_module;
-            port->ext.mix.ioHandle = halPort.ext.mix.handle;
-            port->ext.mix.latencyClass = AudioMixLatencyClass(halPort.ext.mix.latency_class);
-            break;
-        }
-        case AUDIO_PORT_TYPE_SESSION: {
-            port->ext.session.session = halPort.ext.session.session;
-            break;
-        }
-    }
-}
-
-void HidlUtils::audioPortToHal(const AudioPort& port, struct audio_port* halPort) {
-    memset(halPort, 0, sizeof(audio_port));
-    halPort->id = port.id;
-    halPort->role = static_cast<audio_port_role_t>(port.role);
-    halPort->type = static_cast<audio_port_type_t>(port.type);
-    strncpy(halPort->name, port.name.c_str(), AUDIO_PORT_MAX_NAME_LEN);
-    halPort->name[AUDIO_PORT_MAX_NAME_LEN - 1] = '\0';
-    halPort->num_sample_rates =
-        std::min(port.sampleRates.size(), static_cast<size_t>(AUDIO_PORT_MAX_SAMPLING_RATES));
-    for (size_t i = 0; i < halPort->num_sample_rates; ++i) {
-        halPort->sample_rates[i] = port.sampleRates[i];
-    }
-    halPort->num_channel_masks =
-        std::min(port.channelMasks.size(), static_cast<size_t>(AUDIO_PORT_MAX_CHANNEL_MASKS));
-    for (size_t i = 0; i < halPort->num_channel_masks; ++i) {
-        halPort->channel_masks[i] = static_cast<audio_channel_mask_t>(port.channelMasks[i]);
-    }
-    halPort->num_formats =
-        std::min(port.formats.size(), static_cast<size_t>(AUDIO_PORT_MAX_FORMATS));
-    for (size_t i = 0; i < halPort->num_formats; ++i) {
-        halPort->formats[i] = static_cast<audio_format_t>(port.formats[i]);
-    }
-    halPort->num_gains = std::min(port.gains.size(), static_cast<size_t>(AUDIO_PORT_MAX_GAINS));
-    for (size_t i = 0; i < halPort->num_gains; ++i) {
-        audioGainToHal(port.gains[i], &halPort->gains[i]);
-    }
-    audioPortConfigToHal(port.activeConfig, &halPort->active_config);
-    switch (port.type) {
-        case AudioPortType::NONE:
-            break;
-        case AudioPortType::DEVICE: {
-            halPort->ext.device.hw_module = port.ext.device.hwModule;
-            halPort->ext.device.type = static_cast<audio_devices_t>(port.ext.device.type);
-            memcpy(halPort->ext.device.address, port.ext.device.address.data(),
-                   AUDIO_DEVICE_MAX_ADDRESS_LEN);
-            break;
-        }
-        case AudioPortType::MIX: {
-            halPort->ext.mix.hw_module = port.ext.mix.hwModule;
-            halPort->ext.mix.handle = port.ext.mix.ioHandle;
-            halPort->ext.mix.latency_class =
-                static_cast<audio_mix_latency_class_t>(port.ext.mix.latencyClass);
-            break;
-        }
-        case AudioPortType::SESSION: {
-            halPort->ext.session.session = static_cast<audio_session_t>(port.ext.session.session);
-            break;
-        }
-    }
-}
-
-void HidlUtils::uuidFromHal(const audio_uuid_t& halUuid, Uuid* uuid) {
-    uuid->timeLow = halUuid.timeLow;
-    uuid->timeMid = halUuid.timeMid;
-    uuid->versionAndTimeHigh = halUuid.timeHiAndVersion;
-    uuid->variantAndClockSeqHigh = halUuid.clockSeq;
-    memcpy(uuid->node.data(), halUuid.node, uuid->node.size());
-}
-
-void HidlUtils::uuidToHal(const Uuid& uuid, audio_uuid_t* halUuid) {
-    halUuid->timeLow = uuid.timeLow;
-    halUuid->timeMid = uuid.timeMid;
-    halUuid->timeHiAndVersion = uuid.versionAndTimeHigh;
-    halUuid->clockSeq = uuid.variantAndClockSeqHigh;
-    memcpy(halUuid->node, uuid.node.data(), uuid.node.size());
-}
-
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace common
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/common/all-versions/default/service/Android.mk b/audio/common/all-versions/default/service/Android.mk
index 5ef440f..b57a1ae 100644
--- a/audio/common/all-versions/default/service/Android.mk
+++ b/audio/common/all-versions/default/service/Android.mk
@@ -31,22 +31,28 @@
 LOCAL_CFLAGS := -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := \
+    libcutils \
     libbinder \
     libhidlbase \
     libhidltransport \
     liblog \
     libutils \
     libhardware \
+    libhwbinder \
     android.hardware.audio@2.0 \
     android.hardware.audio@4.0 \
+    android.hardware.audio@5.0 \
     android.hardware.audio.common@2.0 \
     android.hardware.audio.common@4.0 \
+    android.hardware.audio.common@5.0 \
     android.hardware.audio.effect@2.0 \
     android.hardware.audio.effect@4.0 \
+    android.hardware.audio.effect@5.0 \
     android.hardware.bluetooth.a2dp@1.0 \
     android.hardware.bluetooth.audio@2.0 \
     android.hardware.soundtrigger@2.0 \
-    android.hardware.soundtrigger@2.1
+    android.hardware.soundtrigger@2.1 \
+    android.hardware.soundtrigger@2.2
 
 # Can not switch to Android.bp until AUDIOSERVER_MULTILIB
 # is deprecated as build config variable are not supported
diff --git a/audio/common/all-versions/default/service/service.cpp b/audio/common/all-versions/default/service/service.cpp
index c45f885..8a7b2ea 100644
--- a/audio/common/all-versions/default/service/service.cpp
+++ b/audio/common/all-versions/default/service/service.cpp
@@ -18,36 +18,52 @@
 
 #include <android/hardware/audio/2.0/IDevicesFactory.h>
 #include <android/hardware/audio/4.0/IDevicesFactory.h>
+#include <android/hardware/audio/5.0/IDevicesFactory.h>
 #include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
 #include <android/hardware/audio/effect/4.0/IEffectsFactory.h>
+#include <android/hardware/audio/effect/5.0/IEffectsFactory.h>
 #include <android/hardware/bluetooth/a2dp/1.0/IBluetoothAudioOffload.h>
 #include <android/hardware/bluetooth/audio/2.0/IBluetoothAudioProvidersFactory.h>
 #include <android/hardware/soundtrigger/2.0/ISoundTriggerHw.h>
 #include <android/hardware/soundtrigger/2.1/ISoundTriggerHw.h>
+#include <android/hardware/soundtrigger/2.2/ISoundTriggerHw.h>
 #include <binder/ProcessState.h>
+#include <cutils/properties.h>
 #include <hidl/HidlTransportSupport.h>
 #include <hidl/LegacySupport.h>
+#include <hwbinder/ProcessState.h>
 
 using namespace android::hardware;
 using android::OK;
 
 int main(int /* argc */, char* /* argv */ []) {
-    android::ProcessState::initWithDriver("/dev/vndbinder");
+    ::android::ProcessState::initWithDriver("/dev/vndbinder");
     // start a threadpool for vndbinder interactions
-    android::ProcessState::self()->startThreadPool();
+    ::android::ProcessState::self()->startThreadPool();
+
+    const int32_t defaultValue = -1;
+    int32_t value =
+        property_get_int32("persist.vendor.audio.service.hwbinder.size_kbyte", defaultValue);
+    if (value != defaultValue) {
+        ALOGD("Configuring hwbinder with mmap size %d KBytes", value);
+        ProcessState::initWithMmapSize(static_cast<size_t>(value) * 1024);
+    }
     configureRpcThreadpool(16, true /*callerWillJoin*/);
 
-    bool fail = registerPassthroughServiceImplementation<audio::V4_0::IDevicesFactory>() != OK &&
+    bool fail = registerPassthroughServiceImplementation<audio::V5_0::IDevicesFactory>() != OK &&
+                registerPassthroughServiceImplementation<audio::V4_0::IDevicesFactory>() != OK &&
                 registerPassthroughServiceImplementation<audio::V2_0::IDevicesFactory>() != OK;
-    LOG_ALWAYS_FATAL_IF(fail, "Could not register audio core API 2.0 nor 4.0");
+    LOG_ALWAYS_FATAL_IF(fail, "Could not register audio core API 2, 4 nor 5");
 
-    fail = registerPassthroughServiceImplementation<audio::effect::V4_0::IEffectsFactory>() != OK &&
+    fail = registerPassthroughServiceImplementation<audio::effect::V5_0::IEffectsFactory>() != OK &&
+           registerPassthroughServiceImplementation<audio::effect::V4_0::IEffectsFactory>() != OK &&
            registerPassthroughServiceImplementation<audio::effect::V2_0::IEffectsFactory>() != OK,
-    LOG_ALWAYS_FATAL_IF(fail, "Could not register audio effect API 2.0 nor 4.0");
+    LOG_ALWAYS_FATAL_IF(fail, "Could not register audio effect API 2, 4 nor 5");
 
-    fail = registerPassthroughServiceImplementation<soundtrigger::V2_1::ISoundTriggerHw>() != OK &&
+    fail = registerPassthroughServiceImplementation<soundtrigger::V2_2::ISoundTriggerHw>() != OK &&
+           registerPassthroughServiceImplementation<soundtrigger::V2_1::ISoundTriggerHw>() != OK &&
            registerPassthroughServiceImplementation<soundtrigger::V2_0::ISoundTriggerHw>() != OK,
-    ALOGW_IF(fail, "Could not register soundtrigger API 2.0 nor 2.1");
+    ALOGW_IF(fail, "Could not register soundtrigger API 2.0, 2.1 nor 2.2");
 
     fail = registerPassthroughServiceImplementation<
                    bluetooth::audio::V2_0::IBluetoothAudioProvidersFactory>() != OK;
diff --git a/audio/common/all-versions/test/utility/include/utility/AssertOk.h b/audio/common/all-versions/test/utility/include/utility/AssertOk.h
index 11e1c24..5ac2fdc 100644
--- a/audio/common/all-versions/test/utility/include/utility/AssertOk.h
+++ b/audio/common/all-versions/test/utility/include/utility/AssertOk.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/test/utility/include/utility/Documentation.h b/audio/common/all-versions/test/utility/include/utility/Documentation.h
index e10cf79..1b555b9 100644
--- a/audio/common/all-versions/test/utility/include/utility/Documentation.h
+++ b/audio/common/all-versions/test/utility/include/utility/Documentation.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/test/utility/include/utility/EnvironmentTearDown.h b/audio/common/all-versions/test/utility/include/utility/EnvironmentTearDown.h
index 7a08a54..0e416f3 100644
--- a/audio/common/all-versions/test/utility/include/utility/EnvironmentTearDown.h
+++ b/audio/common/all-versions/test/utility/include/utility/EnvironmentTearDown.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h b/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h
index abc2ff5..3833fd0 100644
--- a/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h
+++ b/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,10 +14,6 @@
  * limitations under the License.
  */
 
-#ifndef AUDIO_HAL_VERSION
-#error "AUDIO_HAL_VERSION must be set before including this file."
-#endif
-
 #ifndef ANDROID_HARDWARE_AUDIO_COMMON_TEST_UTILITY_PRETTY_PRINT_AUDIO_TYPES_H
 #define ANDROID_HARDWARE_AUDIO_COMMON_TEST_UTILITY_PRETTY_PRINT_AUDIO_TYPES_H
 
@@ -40,19 +36,19 @@
 #define DEFINE_GTEST_PRINT_TO(T) \
     inline void PrintTo(const T& val, ::std::ostream* os) { *os << toString(val); }
 
-namespace AUDIO_HAL_VERSION {
+namespace CPP_VERSION {
 DEFINE_GTEST_PRINT_TO(IPrimaryDevice::TtyMode)
 DEFINE_GTEST_PRINT_TO(Result)
-}  // namespace AUDIO_HAL_VERSION
+}  // namespace CPP_VERSION
 
 namespace common {
-namespace AUDIO_HAL_VERSION {
+namespace CPP_VERSION {
 DEFINE_GTEST_PRINT_TO(AudioConfig)
 DEFINE_GTEST_PRINT_TO(AudioMode)
 DEFINE_GTEST_PRINT_TO(AudioDevice)
 DEFINE_GTEST_PRINT_TO(AudioFormat)
 DEFINE_GTEST_PRINT_TO(AudioChannelMask)
-}  // namespace AUDIO_HAL_VERSION
+}  // namespace CPP_VERSION
 }  // namespace common
 
 #undef DEFINE_GTEST_PRINT_TO
diff --git a/audio/common/all-versions/test/utility/include/utility/ReturnIn.h b/audio/common/all-versions/test/utility/include/utility/ReturnIn.h
index 7fd0d4a..de16809 100644
--- a/audio/common/all-versions/test/utility/include/utility/ReturnIn.h
+++ b/audio/common/all-versions/test/utility/include/utility/ReturnIn.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/test/utility/include/utility/ValidateXml.h b/audio/common/all-versions/test/utility/include/utility/ValidateXml.h
index 91adfc1..ee206f7 100644
--- a/audio/common/all-versions/test/utility/include/utility/ValidateXml.h
+++ b/audio/common/all-versions/test/utility/include/utility/ValidateXml.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/audio/common/all-versions/test/utility/src/ValidateXml.cpp b/audio/common/all-versions/test/utility/src/ValidateXml.cpp
index 1a906d6..bdafa82 100644
--- a/audio/common/all-versions/test/utility/src/ValidateXml.cpp
+++ b/audio/common/all-versions/test/utility/src/ValidateXml.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -162,8 +162,8 @@
            << "\n                 Which is: " << xmlFileName
            << "\n In the following folders: " << xmlFileLocationsExpr
            << "\n                 Which is: " << ::testing::PrintToString(xmlFileLocations)
-           << (atLeastOneRequired ? "Where at least one file must be found."
-                                  : "Where no file might exist.");
+           << (atLeastOneRequired ? "\nWhere at least one file must be found."
+                                  : "\nWhere no file might exist.");
 }
 
 template ::testing::AssertionResult validateXmlMultipleLocations<true>(const char*, const char*,
diff --git a/audio/common/all-versions/util/Android.bp b/audio/common/all-versions/util/Android.bp
index 5d33a3a..3c7e62e 100644
--- a/audio/common/all-versions/util/Android.bp
+++ b/audio/common/all-versions/util/Android.bp
@@ -2,9 +2,6 @@
     name: "android.hardware.audio.common.util@all-versions",
     defaults: ["hidl_defaults"],
     vendor_available: true,
-    vndk: {
-        enabled: true,
-    },
 
     export_include_dirs: ["include"],
 }
diff --git a/audio/common/all-versions/util/include/common/all-versions/IncludeGuard.h b/audio/common/all-versions/util/include/common/all-versions/IncludeGuard.h
deleted file mode 100644
index 2d54816..0000000
--- a/audio/common/all-versions/util/include/common/all-versions/IncludeGuard.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef AUDIO_HAL_VERSION
-#error "AUDIO_HAL_VERSION must be set before including this file."
-#endif
diff --git a/audio/common/all-versions/util/include/common/all-versions/VersionMacro.h b/audio/common/all-versions/util/include/common/all-versions/VersionMacro.h
new file mode 100644
index 0000000..dc54cee
--- /dev/null
+++ b/audio/common/all-versions/util/include/common/all-versions/VersionMacro.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_VERSION_MACRO_H
+#define ANDROID_HARDWARE_VERSION_MACRO_H
+
+#if !defined(MAJOR_VERSION) || !defined(MINOR_VERSION)
+#error "MAJOR_VERSION and MINOR_VERSION must be defined"
+#endif
+
+/** Allows macro expansion for x and add surrounding `<>`.
+ * Is intended to be used for version dependant includes as
+ * `#include` do not macro expand if starting with < or "
+ * Example usage:
+ *      #include PATH(path/to/FILE_VERSION/file)
+ * @note: uses the implementation-define "Computed Includes" feature.
+ */
+#define PATH(x) <x>
+
+#define CONCAT_3(a, b, c) a##b##c
+#define EXPAND_CONCAT_3(a, b, c) CONCAT_3(a, b, c)
+/** The directory name of the version: <major>.<minor> */
+#define FILE_VERSION EXPAND_CONCAT_3(MAJOR_VERSION, ., MINOR_VERSION)
+
+#define CONCAT_4(a, b, c, d) a##b##c##d
+#define EXPAND_CONCAT_4(a, b, c, d) CONCAT_4(a, b, c, d)
+/** The c++ namespace of the version: V<major>_<minor> */
+#define CPP_VERSION EXPAND_CONCAT_4(V, MAJOR_VERSION, _, MINOR_VERSION)
+
+#endif  // ANDROID_HARDWARE_VERSION_MACRO_H
diff --git a/audio/common/all-versions/util/include/common/all-versions/VersionUtils.h b/audio/common/all-versions/util/include/common/all-versions/VersionUtils.h
index 70c3d56..3b5c0fb 100644
--- a/audio/common/all-versions/util/include/common/all-versions/VersionUtils.h
+++ b/audio/common/all-versions/util/include/common/all-versions/VersionUtils.h
@@ -26,36 +26,31 @@
 namespace common {
 namespace utils {
 
-/** Similar to static_cast but also casts to hidl_bitfield depending on
- * return type inference (emulated through user-define conversion).
- */
-template <class Source, class Destination = Source>
-class EnumConverter {
+/** Converting between a bitfield or itself. */
+template <class Enum>
+class EnumBitfield {
    public:
-    static_assert(std::is_enum<Source>::value || std::is_enum<Destination>::value,
-                  "Source or destination should be an enum");
+    using Bitfield = ::android::hardware::hidl_bitfield<Enum>;
 
-    explicit EnumConverter(Source source) : mSource(source) {}
+    EnumBitfield(const EnumBitfield&) = default;
+    explicit EnumBitfield(Enum value) : mValue(value) {}
+    explicit EnumBitfield(Bitfield value) : EnumBitfield(static_cast<Enum>(value)) {}
 
-    operator Destination() const { return static_cast<Destination>(mSource); }
+    EnumBitfield& operator=(const EnumBitfield&) = default;
+    EnumBitfield& operator=(Enum value) { return *this = EnumBitfield{value}; }
+    EnumBitfield& operator=(Bitfield value) { return *this = EnumBitfield{value}; }
 
-    template <class = std::enable_if_t<std::is_enum<Destination>::value>>
-    operator ::android::hardware::hidl_bitfield<Destination>() {
-        return static_cast<std::underlying_type_t<Destination>>(mSource);
-    }
+    operator Enum() const { return mValue; }
+    operator Bitfield() const { return static_cast<Bitfield>(mValue); }
 
    private:
-    const Source mSource;
+    Enum mValue;
 };
-template <class Destination, class Source>
-auto mkEnumConverter(Source source) {
-    return EnumConverter<Source, Destination>{source};
-}
 
-/** Allows converting an enum to its bitfield or itself. */
+/** ATD way to create a EnumBitfield. */
 template <class Enum>
-EnumConverter<Enum> mkBitfield(Enum value) {
-    return EnumConverter<Enum>{value};
+EnumBitfield<Enum> mkEnumBitfield(Enum value) {
+    return EnumBitfield<Enum>{value};
 }
 
 }  // namespace utils
diff --git a/audio/core/2.0/default/Android.bp b/audio/core/2.0/default/Android.bp
deleted file mode 100644
index 625df74..0000000
--- a/audio/core/2.0/default/Android.bp
+++ /dev/null
@@ -1,53 +0,0 @@
-cc_library_shared {
-    name: "android.hardware.audio@2.0-impl",
-    relative_install_path: "hw",
-    proprietary: true,
-    vendor: true,
-    srcs: [
-        "Conversions.cpp",
-        "Device.cpp",
-        "DevicesFactory.cpp",
-        "ParametersUtil.cpp",
-        "PrimaryDevice.cpp",
-        "Stream.cpp",
-        "StreamIn.cpp",
-        "StreamOut.cpp",
-    ],
-
-    cflags: [
-        "-DAUDIO_HAL_VERSION_2_0",
-    ],
-
-    defaults: ["hidl_defaults"],
-
-    export_include_dirs: ["include"],
-
-    shared_libs: [
-        "libbase",
-        "libcutils",
-        "libfmq",
-        "libhardware",
-        "libhidlbase",
-        "libhidltransport",
-        "liblog",
-        "libutils",
-        "android.hardware.audio@2.0",
-        "android.hardware.audio.common@2.0",
-        "android.hardware.audio.common@2.0-util",
-        "android.hardware.audio.common-util",
-    ],
-
-    header_libs: [
-        "android.hardware.audio.common.util@all-versions",
-        "android.hardware.audio.core@all-versions-impl",
-        "libaudioclient_headers",
-        "libaudio_system_headers",
-        "libhardware_headers",
-        "libmedia_headers",
-    ],
-
-    whole_static_libs: [
-        "libmedia_helper",
-    ],
-
-}
diff --git a/audio/core/2.0/default/Conversions.cpp b/audio/core/2.0/default/Conversions.cpp
deleted file mode 100644
index 6c32090..0000000
--- a/audio/core/2.0/default/Conversions.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "core/2.0/default/Conversions.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Conversions.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/Device.cpp b/audio/core/2.0/default/Device.cpp
deleted file mode 100644
index b67203d..0000000
--- a/audio/core/2.0/default/Device.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "DeviceHAL"
-
-#include "core/2.0/default/Device.h"
-#include <HidlUtils.h>
-#include "core/2.0/default/Conversions.h"
-#include "core/2.0/default/StreamIn.h"
-#include "core/2.0/default/StreamOut.h"
-#include "core/2.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Device.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/DevicesFactory.cpp b/audio/core/2.0/default/DevicesFactory.cpp
deleted file mode 100644
index 65a9ccd..0000000
--- a/audio/core/2.0/default/DevicesFactory.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "DevicesFactoryHAL"
-
-#include "core/2.0/default/DevicesFactory.h"
-#include "core/2.0/default/Device.h"
-#include "core/2.0/default/PrimaryDevice.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/DevicesFactory.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/OWNERS b/audio/core/2.0/default/OWNERS
deleted file mode 100644
index 6fdc97c..0000000
--- a/audio/core/2.0/default/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
diff --git a/audio/core/2.0/default/ParametersUtil.cpp b/audio/core/2.0/default/ParametersUtil.cpp
deleted file mode 100644
index 963e291..0000000
--- a/audio/core/2.0/default/ParametersUtil.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "core/2.0/default/ParametersUtil.h"
-#include "core/2.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/ParametersUtil.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/PrimaryDevice.cpp b/audio/core/2.0/default/PrimaryDevice.cpp
deleted file mode 100644
index decaa14..0000000
--- a/audio/core/2.0/default/PrimaryDevice.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "PrimaryDeviceHAL"
-
-#include "core/2.0/default/PrimaryDevice.h"
-#include "core/2.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/PrimaryDevice.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/Stream.cpp b/audio/core/2.0/default/Stream.cpp
deleted file mode 100644
index 0863a7c..0000000
--- a/audio/core/2.0/default/Stream.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "StreamHAL"
-
-#include "core/2.0/default/Stream.h"
-#include "common/all-versions/default/EffectMap.h"
-#include "core/2.0/default/Conversions.h"
-#include "core/2.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Stream.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/StreamIn.cpp b/audio/core/2.0/default/StreamIn.cpp
deleted file mode 100644
index 2021df1..0000000
--- a/audio/core/2.0/default/StreamIn.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "StreamInHAL"
-
-#include "core/2.0/default/StreamIn.h"
-#include "core/2.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/StreamIn.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/StreamOut.cpp b/audio/core/2.0/default/StreamOut.cpp
deleted file mode 100644
index 940a251..0000000
--- a/audio/core/2.0/default/StreamOut.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "StreamOutHAL"
-
-#include "core/2.0/default/StreamOut.h"
-#include "core/2.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/StreamOut.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/2.0/default/include/core/2.0/default/Conversions.h b/audio/core/2.0/default/include/core/2.0/default/Conversions.h
deleted file mode 100644
index b3a6ea8..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/Conversions.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_CONVERSIONS_H_
-#define ANDROID_HARDWARE_AUDIO_V2_0_CONVERSIONS_H_
-
-#include <android/hardware/audio/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Conversions.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_CONVERSIONS_H_
diff --git a/audio/core/2.0/default/include/core/2.0/default/Device.h b/audio/core/2.0/default/include/core/2.0/default/Device.h
deleted file mode 100644
index 3ec7464..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/Device.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
-
-#include <android/hardware/audio/2.0/IDevice.h>
-
-#include "ParametersUtil.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Device.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
diff --git a/audio/core/2.0/default/include/core/2.0/default/DevicesFactory.h b/audio/core/2.0/default/include/core/2.0/default/DevicesFactory.h
deleted file mode 100644
index 8e8ee88..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/DevicesFactory.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_DEVICESFACTORY_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_DEVICESFACTORY_H
-
-#include <android/hardware/audio/2.0/IDevicesFactory.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/DevicesFactory.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_DEVICESFACTORY_H
diff --git a/audio/core/2.0/default/include/core/2.0/default/ParametersUtil.h b/audio/core/2.0/default/include/core/2.0/default/ParametersUtil.h
deleted file mode 100644
index a5c1c78..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/ParametersUtil.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_PARAMETERS_UTIL_H_
-#define ANDROID_HARDWARE_AUDIO_V2_0_PARAMETERS_UTIL_H_
-
-#include <android/hardware/audio/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/ParametersUtil.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_PARAMETERS_UTIL_H_
diff --git a/audio/core/2.0/default/include/core/2.0/default/PrimaryDevice.h b/audio/core/2.0/default/include/core/2.0/default/PrimaryDevice.h
deleted file mode 100644
index f898597..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/PrimaryDevice.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_PRIMARYDEVICE_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_PRIMARYDEVICE_H
-
-#include <android/hardware/audio/2.0/IPrimaryDevice.h>
-
-#include "Device.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/PrimaryDevice.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_PRIMARYDEVICE_H
diff --git a/audio/core/2.0/default/include/core/2.0/default/Stream.h b/audio/core/2.0/default/include/core/2.0/default/Stream.h
deleted file mode 100644
index a2d8456..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/Stream.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAM_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_STREAM_H
-
-#include <android/hardware/audio/2.0/IStream.h>
-
-#include "ParametersUtil.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Stream.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_STREAM_H
diff --git a/audio/core/2.0/default/include/core/2.0/default/StreamIn.h b/audio/core/2.0/default/include/core/2.0/default/StreamIn.h
deleted file mode 100644
index c36abbd..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/StreamIn.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
-
-#include <android/hardware/audio/2.0/IStreamIn.h>
-
-#include "Device.h"
-#include "Stream.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/StreamIn.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
diff --git a/audio/core/2.0/default/include/core/2.0/default/StreamOut.h b/audio/core/2.0/default/include/core/2.0/default/StreamOut.h
deleted file mode 100644
index ab35687..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/StreamOut.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
-
-#include <android/hardware/audio/2.0/IStreamOut.h>
-
-#include "Device.h"
-#include "Stream.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/StreamOut.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
diff --git a/audio/core/2.0/default/include/core/2.0/default/Util.h b/audio/core/2.0/default/include/core/2.0/default/Util.h
deleted file mode 100644
index 1f0e284..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/Util.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_UTIL_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_UTIL_H
-
-#include <android/hardware/audio/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Util.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_UTIL_H
diff --git a/audio/core/2.0/vts/OWNERS b/audio/core/2.0/vts/OWNERS
deleted file mode 100644
index 8711a9f..0000000
--- a/audio/core/2.0/vts/OWNERS
+++ /dev/null
@@ -1,5 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
-yim@google.com
-zhuoyao@google.com
\ No newline at end of file
diff --git a/audio/core/2.0/vts/functional/Android.bp b/audio/core/2.0/vts/functional/Android.bp
deleted file mode 100644
index 2cfba21..0000000
--- a/audio/core/2.0/vts/functional/Android.bp
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright (C) 2017 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-cc_test {
-    name: "VtsHalAudioV2_0TargetTest",
-    defaults: ["VtsHalTargetTestDefaults"],
-    srcs: [
-        "AudioPrimaryHidlHalTest.cpp",
-        "ValidateAudioConfiguration.cpp"
-    ],
-    static_libs: [
-        "android.hardware.audio.common.test.utility",
-        "android.hardware.audio@2.0",
-        "android.hardware.audio.common@2.0",
-        "libxml2",
-    ],
-    test_suites: ["general-tests"],
-}
diff --git a/audio/core/2.0/vts/functional/AudioPrimaryHidlHalTest.cpp b/audio/core/2.0/vts/functional/AudioPrimaryHidlHalTest.cpp
deleted file mode 100644
index a08a2d6..0000000
--- a/audio/core/2.0/vts/functional/AudioPrimaryHidlHalTest.cpp
+++ /dev/null
@@ -1,1280 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "VtsHalAudioV2_0TargetTest"
-
-#include <algorithm>
-#include <cmath>
-#include <cstddef>
-#include <cstdio>
-#include <initializer_list>
-#include <limits>
-#include <string>
-#include <vector>
-
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-
-#include <android-base/logging.h>
-
-#include <android/hardware/audio/2.0/IDevice.h>
-#include <android/hardware/audio/2.0/IDevicesFactory.h>
-#include <android/hardware/audio/2.0/IPrimaryDevice.h>
-#include <android/hardware/audio/2.0/types.h>
-#include <android/hardware/audio/common/2.0/types.h>
-
-#include "utility/AssertOk.h"
-#include "utility/Documentation.h"
-#include "utility/EnvironmentTearDown.h"
-#define AUDIO_HAL_VERSION V2_0
-#include "utility/PrettyPrintAudioTypes.h"
-#include "utility/ReturnIn.h"
-
-using std::initializer_list;
-using std::string;
-using std::to_string;
-using std::vector;
-
-using ::android::sp;
-using ::android::hardware::Return;
-using ::android::hardware::hidl_handle;
-using ::android::hardware::hidl_string;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::MQDescriptorSync;
-using ::android::hardware::audio::V2_0::AudioDrain;
-using ::android::hardware::audio::V2_0::DeviceAddress;
-using ::android::hardware::audio::V2_0::IDevice;
-using ::android::hardware::audio::V2_0::IPrimaryDevice;
-using TtyMode = ::android::hardware::audio::V2_0::IPrimaryDevice::TtyMode;
-using ::android::hardware::audio::V2_0::IDevicesFactory;
-using ::android::hardware::audio::V2_0::IStream;
-using ::android::hardware::audio::V2_0::IStreamIn;
-using ::android::hardware::audio::V2_0::TimeSpec;
-using ReadParameters = ::android::hardware::audio::V2_0::IStreamIn::ReadParameters;
-using ReadStatus = ::android::hardware::audio::V2_0::IStreamIn::ReadStatus;
-using ::android::hardware::audio::V2_0::IStreamOut;
-using ::android::hardware::audio::V2_0::IStreamOutCallback;
-using ::android::hardware::audio::V2_0::MmapBufferInfo;
-using ::android::hardware::audio::V2_0::MmapPosition;
-using ::android::hardware::audio::V2_0::ParameterValue;
-using ::android::hardware::audio::V2_0::Result;
-using ::android::hardware::audio::common::V2_0::AudioChannelMask;
-using ::android::hardware::audio::common::V2_0::AudioConfig;
-using ::android::hardware::audio::common::V2_0::AudioDevice;
-using ::android::hardware::audio::common::V2_0::AudioFormat;
-using ::android::hardware::audio::common::V2_0::AudioHandleConsts;
-using ::android::hardware::audio::common::V2_0::AudioInputFlag;
-using ::android::hardware::audio::common::V2_0::AudioIoHandle;
-using ::android::hardware::audio::common::V2_0::AudioMode;
-using ::android::hardware::audio::common::V2_0::AudioOffloadInfo;
-using ::android::hardware::audio::common::V2_0::AudioOutputFlag;
-using ::android::hardware::audio::common::V2_0::AudioSource;
-using ::android::hardware::audio::common::V2_0::ThreadInfo;
-
-using namespace ::android::hardware::audio::common::test::utility;
-
-class AudioHidlTestEnvironment : public ::Environment {
-   public:
-    virtual void registerTestServices() override { registerTestService<IDevicesFactory>(); }
-};
-
-// Instance to register global tearDown
-static AudioHidlTestEnvironment* environment;
-
-class HidlTest : public ::testing::VtsHalHidlTargetTestBase {
-   protected:
-    // Convenient member to store results
-    Result res;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////// getService audio_devices_factory //////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-// Test all audio devices
-class AudioHidlTest : public HidlTest {
-   public:
-    void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(HidlTest::SetUp());  // setup base
-
-        if (devicesFactory == nullptr) {
-            environment->registerTearDown([] { devicesFactory.clear(); });
-            devicesFactory = ::testing::VtsHalHidlTargetTestBase::getService<IDevicesFactory>(
-                environment->getServiceName<IDevicesFactory>("default"));
-        }
-        ASSERT_TRUE(devicesFactory != nullptr);
-    }
-
-   protected:
-    // Cache the devicesFactory retrieval to speed up each test by ~0.5s
-    static sp<IDevicesFactory> devicesFactory;
-};
-sp<IDevicesFactory> AudioHidlTest::devicesFactory;
-
-TEST_F(AudioHidlTest, GetAudioDevicesFactoryService) {
-    doc::test("test the getService (called in SetUp)");
-}
-
-TEST_F(AudioHidlTest, OpenDeviceInvalidParameter) {
-    doc::test("test passing an invalid parameter to openDevice");
-    IDevicesFactory::Result result;
-    sp<IDevice> device;
-    ASSERT_OK(devicesFactory->openDevice(IDevicesFactory::Device(-1), returnIn(result, device)));
-    ASSERT_EQ(IDevicesFactory::Result::INVALID_ARGUMENTS, result);
-    ASSERT_TRUE(device == nullptr);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// openDevice primary ///////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-// Test the primary device
-class AudioPrimaryHidlTest : public AudioHidlTest {
-   public:
-    /** Primary HAL test are NOT thread safe. */
-    void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(AudioHidlTest::SetUp());  // setup base
-
-        if (device == nullptr) {
-            IDevicesFactory::Result result;
-            sp<IDevice> baseDevice;
-            ASSERT_OK(devicesFactory->openDevice(IDevicesFactory::Device::PRIMARY,
-                                                 returnIn(result, baseDevice)));
-            ASSERT_OK(result);
-            ASSERT_TRUE(baseDevice != nullptr);
-
-            environment->registerTearDown([] { device.clear(); });
-            device = IPrimaryDevice::castFrom(baseDevice);
-            ASSERT_TRUE(device != nullptr);
-        }
-    }
-
-   protected:
-    // Cache the device opening to speed up each test by ~0.5s
-    static sp<IPrimaryDevice> device;
-};
-sp<IPrimaryDevice> AudioPrimaryHidlTest::device;
-
-TEST_F(AudioPrimaryHidlTest, OpenPrimaryDevice) {
-    doc::test("Test the openDevice (called in SetUp)");
-}
-
-TEST_F(AudioPrimaryHidlTest, Init) {
-    doc::test("Test that the audio primary hal initialized correctly");
-    ASSERT_OK(device->initCheck());
-}
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////// {set,get}{Master,Mic}{Mute,Volume} /////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-template <class Property>
-class AccessorPrimaryHidlTest : public AudioPrimaryHidlTest {
-   protected:
-    /** Test a property getter and setter. */
-    template <class Getter, class Setter>
-    void testAccessors(const string& propertyName, const vector<Property>& valuesToTest,
-                       Setter setter, Getter getter, const vector<Property>& invalidValues = {}) {
-        Property initialValue;  // Save initial value to restore it at the end
-                                // of the test
-        ASSERT_OK((device.get()->*getter)(returnIn(res, initialValue)));
-        ASSERT_OK(res);
-
-        for (Property setValue : valuesToTest) {
-            SCOPED_TRACE("Test " + propertyName + " getter and setter for " +
-                         testing::PrintToString(setValue));
-            ASSERT_OK((device.get()->*setter)(setValue));
-            Property getValue;
-            // Make sure the getter returns the same value just set
-            ASSERT_OK((device.get()->*getter)(returnIn(res, getValue)));
-            ASSERT_OK(res);
-            EXPECT_EQ(setValue, getValue);
-        }
-
-        for (Property invalidValue : invalidValues) {
-            SCOPED_TRACE("Try to set " + propertyName + " with the invalid value " +
-                         testing::PrintToString(invalidValue));
-            EXPECT_RESULT(Result::INVALID_ARGUMENTS, (device.get()->*setter)(invalidValue));
-        }
-
-        ASSERT_OK((device.get()->*setter)(initialValue));  // restore initial value
-    }
-
-    /** Test the getter and setter of an optional feature. */
-    template <class Getter, class Setter>
-    void testOptionalAccessors(const string& propertyName, const vector<Property>& valuesToTest,
-                               Setter setter, Getter getter,
-                               const vector<Property>& invalidValues = {}) {
-        doc::test("Test the optional " + propertyName + " getters and setter");
-        {
-            SCOPED_TRACE("Test feature support by calling the getter");
-            Property initialValue;
-            ASSERT_OK((device.get()->*getter)(returnIn(res, initialValue)));
-            if (res == Result::NOT_SUPPORTED) {
-                doc::partialTest(propertyName + " getter is not supported");
-                return;
-            }
-            ASSERT_OK(res);  // If it is supported it must succeed
-        }
-        // The feature is supported, test it
-        testAccessors(propertyName, valuesToTest, setter, getter, invalidValues);
-    }
-};
-
-using BoolAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<bool>;
-
-TEST_F(BoolAccessorPrimaryHidlTest, MicMuteTest) {
-    doc::test("Check that the mic can be muted and unmuted");
-    testAccessors("mic mute", {true, false, true}, &IDevice::setMicMute, &IDevice::getMicMute);
-    // TODO: check that the mic is really muted (all sample are 0)
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, MasterMuteTest) {
-    doc::test(
-        "If master mute is supported, try to mute and unmute the master "
-        "output");
-    testOptionalAccessors("master mute", {true, false, true}, &IDevice::setMasterMute,
-                          &IDevice::getMasterMute);
-    // TODO: check that the master volume is really muted
-}
-
-using FloatAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<float>;
-TEST_F(FloatAccessorPrimaryHidlTest, MasterVolumeTest) {
-    doc::test("Test the master volume if supported");
-    testOptionalAccessors(
-        "master volume", {0, 0.5, 1}, &IDevice::setMasterVolume, &IDevice::getMasterVolume,
-        {-0.1, 1.1, NAN, INFINITY, -INFINITY, 1 + std::numeric_limits<float>::epsilon()});
-    // TODO: check that the master volume is really changed
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////////// AudioPatches ////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-class AudioPatchPrimaryHidlTest : public AudioPrimaryHidlTest {
-   protected:
-    bool areAudioPatchesSupported() {
-        auto result = device->supportsAudioPatches();
-        EXPECT_IS_OK(result);
-        return result;
-    }
-};
-
-TEST_F(AudioPatchPrimaryHidlTest, AudioPatches) {
-    doc::test("Test if audio patches are supported");
-    if (!areAudioPatchesSupported()) {
-        doc::partialTest("Audio patches are not supported");
-        return;
-    }
-    // TODO: test audio patches
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////// Required and recommended audio format support ///////////////
-// From:
-// https://source.android.com/compatibility/android-cdd.html#5_4_audio_recording
-// From:
-// https://source.android.com/compatibility/android-cdd.html#5_5_audio_playback
-/////////// TODO: move to the beginning of the file for easier update ////////
-//////////////////////////////////////////////////////////////////////////////
-
-class AudioConfigPrimaryTest : public AudioPatchPrimaryHidlTest {
-   public:
-    // Cache result ?
-    static const vector<AudioConfig> getRequiredSupportPlaybackAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::OUT_STEREO, AudioChannelMask::OUT_MONO},
-                                  {8000, 11025, 16000, 22050, 32000, 44100},
-                                  {AudioFormat::PCM_16_BIT});
-    }
-
-    static const vector<AudioConfig> getRecommendedSupportPlaybackAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::OUT_STEREO, AudioChannelMask::OUT_MONO},
-                                  {24000, 48000}, {AudioFormat::PCM_16_BIT});
-    }
-
-    static const vector<AudioConfig> getSupportedPlaybackAudioConfig() {
-        // TODO: retrieve audio config supported by the platform
-        // as declared in the policy configuration
-        return {};
-    }
-
-    static const vector<AudioConfig> getRequiredSupportCaptureAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::IN_MONO}, {8000, 11025, 16000, 44100},
-                                  {AudioFormat::PCM_16_BIT});
-    }
-    static const vector<AudioConfig> getRecommendedSupportCaptureAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::IN_STEREO}, {22050, 48000},
-                                  {AudioFormat::PCM_16_BIT});
-    }
-    static const vector<AudioConfig> getSupportedCaptureAudioConfig() {
-        // TODO: retrieve audio config supported by the platform
-        // as declared in the policy configuration
-        return {};
-    }
-
-   private:
-    static const vector<AudioConfig> combineAudioConfig(vector<AudioChannelMask> channelMasks,
-                                                        vector<uint32_t> sampleRates,
-                                                        vector<AudioFormat> formats) {
-        vector<AudioConfig> configs;
-        for (auto channelMask : channelMasks) {
-            for (auto sampleRate : sampleRates) {
-                for (auto format : formats) {
-                    AudioConfig config{};
-                    // leave offloadInfo to 0
-                    config.channelMask = channelMask;
-                    config.sampleRateHz = sampleRate;
-                    config.format = format;
-                    // FIXME: leave frameCount to 0 ?
-                    configs.push_back(config);
-                }
-            }
-        }
-        return configs;
-    }
-};
-
-/** Generate a test name based on an audio config.
- *
- * As the only parameter changing are channel mask and sample rate,
- * only print those ones in the test name.
- */
-static string generateTestName(const testing::TestParamInfo<AudioConfig>& info) {
-    const AudioConfig& config = info.param;
-    return to_string(info.index) + "__" + to_string(config.sampleRateHz) + "_" +
-           // "MONO" is more clear than "FRONT_LEFT"
-           ((config.channelMask == AudioChannelMask::OUT_MONO ||
-             config.channelMask == AudioChannelMask::IN_MONO)
-                ? "MONO"
-                : toString(config.channelMask));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////////////// getInputBufferSize /////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-// FIXME: execute input test only if platform declares
-// android.hardware.microphone
-//        how to get this value ? is it a property ???
-
-class AudioCaptureConfigPrimaryTest : public AudioConfigPrimaryTest,
-                                      public ::testing::WithParamInterface<AudioConfig> {
-   protected:
-    void inputBufferSizeTest(const AudioConfig& audioConfig, bool supportRequired) {
-        uint64_t bufferSize;
-        ASSERT_OK(device->getInputBufferSize(audioConfig, returnIn(res, bufferSize)));
-
-        switch (res) {
-            case Result::INVALID_ARGUMENTS:
-                EXPECT_FALSE(supportRequired);
-                break;
-            case Result::OK:
-                // Check that the buffer is of a sane size
-                // For now only that it is > 0
-                EXPECT_GT(bufferSize, uint64_t(0));
-                break;
-            default:
-                FAIL() << "Invalid return status: " << ::testing::PrintToString(res);
-        }
-    }
-};
-
-// Test that the required capture config and those declared in the policy are
-// indeed supported
-class RequiredInputBufferSizeTest : public AudioCaptureConfigPrimaryTest {};
-TEST_P(RequiredInputBufferSizeTest, RequiredInputBufferSizeTest) {
-    doc::test(
-        "Input buffer size must be retrievable for a format with required "
-        "support.");
-    inputBufferSizeTest(GetParam(), true);
-}
-INSTANTIATE_TEST_CASE_P(
-    RequiredInputBufferSize, RequiredInputBufferSizeTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportCaptureAudioConfig()),
-    &generateTestName);
-INSTANTIATE_TEST_CASE_P(
-    SupportedInputBufferSize, RequiredInputBufferSizeTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedCaptureAudioConfig()),
-    &generateTestName);
-
-// Test that the recommended capture config are supported or lead to a
-// INVALID_ARGUMENTS return
-class OptionalInputBufferSizeTest : public AudioCaptureConfigPrimaryTest {};
-TEST_P(OptionalInputBufferSizeTest, OptionalInputBufferSizeTest) {
-    doc::test(
-        "Input buffer size should be retrievable for a format with recommended "
-        "support.");
-    inputBufferSizeTest(GetParam(), false);
-}
-INSTANTIATE_TEST_CASE_P(
-    RecommendedCaptureAudioConfigSupport, OptionalInputBufferSizeTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportCaptureAudioConfig()),
-    &generateTestName);
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// setScreenState ///////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, setScreenState) {
-    doc::test("Check that the hal can receive the screen state");
-    for (bool turnedOn : {false, true, true, false, false}) {
-        auto ret = device->setScreenState(turnedOn);
-        ASSERT_IS_OK(ret);
-        Result result = ret;
-        auto okOrNotSupported = {Result::OK, Result::NOT_SUPPORTED};
-        ASSERT_RESULT(okOrNotSupported, result);
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////// {get,set}Parameters /////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, getParameters) {
-    doc::test("Check that the hal can set and get parameters");
-    hidl_vec<hidl_string> keys;
-    hidl_vec<ParameterValue> values;
-    ASSERT_OK(device->getParameters(keys, returnIn(res, values)));
-    ASSERT_OK(device->setParameters(values));
-    values.resize(0);
-    ASSERT_OK(device->setParameters(values));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////////// debugDebug //////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-template <class DebugDump>
-static void testDebugDump(DebugDump debugDump) {
-    // File descriptors to our pipe. fds[0] corresponds to the read end and
-    // fds[1] to the write end.
-    int fds[2];
-    ASSERT_EQ(0, pipe2(fds, O_NONBLOCK)) << errno;
-
-    // Make sure that the pipe is at least 1 MB in size. The test process runs
-    // in su domain, so it should be safe to make this call.
-    fcntl(fds[0], F_SETPIPE_SZ, 1 << 20);
-
-    // Wrap the temporary file file descriptor in a native handle
-    auto* nativeHandle = native_handle_create(1, 0);
-    ASSERT_NE(nullptr, nativeHandle);
-    nativeHandle->data[0] = fds[1];
-
-    // Wrap this native handle in a hidl handle
-    hidl_handle handle;
-    handle.setTo(nativeHandle, false /*take ownership*/);
-
-    ASSERT_OK(debugDump(handle));
-
-    // Check that at least one bit was written by the hal
-    // TODO: debugDump does not return a Result.
-    // This mean that the hal can not report that it not implementing the
-    // function.
-    char buff;
-    if (read(fds[0], &buff, 1) != 1) {
-        doc::note("debugDump does not seem implemented");
-    }
-    EXPECT_EQ(0, close(fds[0])) << errno;
-    EXPECT_EQ(0, close(fds[1])) << errno;
-}
-
-TEST_F(AudioPrimaryHidlTest, DebugDump) {
-    doc::test("Check that the hal can dump its state without error");
-    testDebugDump([](const auto& handle) { return device->debugDump(handle); });
-}
-
-TEST_F(AudioPrimaryHidlTest, DebugDumpInvalidArguments) {
-    doc::test("Check that the hal dump doesn't crash on invalid arguments");
-    ASSERT_OK(device->debugDump(hidl_handle()));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////////// open{Output,Input}Stream //////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-template <class Stream>
-class OpenStreamTest : public AudioConfigPrimaryTest,
-                       public ::testing::WithParamInterface<AudioConfig> {
-   protected:
-    template <class Open>
-    void testOpen(Open openStream, const AudioConfig& config) {
-        // FIXME: Open a stream without an IOHandle
-        //        This is not required to be accepted by hal implementations
-        AudioIoHandle ioHandle = (AudioIoHandle)AudioHandleConsts::AUDIO_IO_HANDLE_NONE;
-        AudioConfig suggestedConfig{};
-        ASSERT_OK(openStream(ioHandle, config, returnIn(res, stream, suggestedConfig)));
-
-        // TODO: only allow failure for RecommendedPlaybackAudioConfig
-        switch (res) {
-            case Result::OK:
-                ASSERT_TRUE(stream != nullptr);
-                audioConfig = config;
-                break;
-            case Result::INVALID_ARGUMENTS:
-                ASSERT_TRUE(stream == nullptr);
-                AudioConfig suggestedConfigRetry;
-                // Could not open stream with config, try again with the
-                // suggested one
-                ASSERT_OK(openStream(ioHandle, suggestedConfig,
-                                     returnIn(res, stream, suggestedConfigRetry)));
-                // This time it must succeed
-                ASSERT_OK(res);
-                ASSERT_TRUE(stream != nullptr);
-                audioConfig = suggestedConfig;
-                break;
-            default:
-                FAIL() << "Invalid return status: " << ::testing::PrintToString(res);
-        }
-        open = true;
-    }
-
-    Return<Result> closeStream() {
-        open = false;
-        return stream->close();
-    }
-
-   private:
-    void TearDown() override {
-        if (open) {
-            ASSERT_OK(stream->close());
-        }
-    }
-
-   protected:
-    AudioConfig audioConfig;
-    DeviceAddress address = {};
-    sp<Stream> stream;
-    bool open = false;
-};
-
-////////////////////////////// openOutputStream //////////////////////////////
-
-class OutputStreamTest : public OpenStreamTest<IStreamOut> {
-    virtual void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
-        address.device = AudioDevice::OUT_DEFAULT;
-        const AudioConfig& config = GetParam();
-        AudioOutputFlag flags = AudioOutputFlag::NONE;  // TODO: test all flag combination
-        testOpen(
-            [&](AudioIoHandle handle, AudioConfig config, auto cb) {
-                return device->openOutputStream(handle, address, config, flags, cb);
-            },
-            config);
-    }
-};
-TEST_P(OutputStreamTest, OpenOutputStreamTest) {
-    doc::test(
-        "Check that output streams can be open with the required and "
-        "recommended config");
-    // Open done in SetUp
-}
-INSTANTIATE_TEST_CASE_P(
-    RequiredOutputStreamConfigSupport, OutputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportPlaybackAudioConfig()),
-    &generateTestName);
-INSTANTIATE_TEST_CASE_P(
-    SupportedOutputStreamConfig, OutputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedPlaybackAudioConfig()),
-    &generateTestName);
-
-INSTANTIATE_TEST_CASE_P(
-    RecommendedOutputStreamConfigSupport, OutputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportPlaybackAudioConfig()),
-    &generateTestName);
-
-////////////////////////////// openInputStream //////////////////////////////
-
-class InputStreamTest : public OpenStreamTest<IStreamIn> {
-    virtual void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
-        address.device = AudioDevice::IN_DEFAULT;
-        const AudioConfig& config = GetParam();
-        AudioInputFlag flags = AudioInputFlag::NONE;  // TODO: test all flag combination
-        AudioSource source = AudioSource::DEFAULT;    // TODO: test all flag combination
-        testOpen(
-            [&](AudioIoHandle handle, AudioConfig config, auto cb) {
-                return device->openInputStream(handle, address, config, flags, source, cb);
-            },
-            config);
-    }
-};
-
-TEST_P(InputStreamTest, OpenInputStreamTest) {
-    doc::test(
-        "Check that input streams can be open with the required and "
-        "recommended config");
-    // Open done in setup
-}
-INSTANTIATE_TEST_CASE_P(
-    RequiredInputStreamConfigSupport, InputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportCaptureAudioConfig()),
-    &generateTestName);
-INSTANTIATE_TEST_CASE_P(
-    SupportedInputStreamConfig, InputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedCaptureAudioConfig()),
-    &generateTestName);
-
-INSTANTIATE_TEST_CASE_P(
-    RecommendedInputStreamConfigSupport, InputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportCaptureAudioConfig()),
-    &generateTestName);
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////////////// IStream getters ///////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-/** Unpack the provided result.
- * If the result is not OK, register a failure and return an undefined value. */
-template <class R>
-static R extract(Return<R> ret) {
-    if (!ret.isOk()) {
-        EXPECT_IS_OK(ret);
-        return R{};
-    }
-    return ret;
-}
-
-/* Could not find a way to write a test for two parametrized class fixure
- * thus use this macro do duplicate tests for Input and Output stream */
-#define TEST_IO_STREAM(test_name, documentation, code) \
-    TEST_P(InputStreamTest, test_name) {               \
-        doc::test(documentation);                      \
-        code;                                          \
-    }                                                  \
-    TEST_P(OutputStreamTest, test_name) {              \
-        doc::test(documentation);                      \
-        code;                                          \
-    }
-
-TEST_IO_STREAM(GetFrameCount, "Check that getting stream frame count does not crash the HAL.",
-               ASSERT_TRUE(stream->getFrameCount().isOk()))
-
-TEST_IO_STREAM(GetSampleRate, "Check that the stream sample rate == the one it was opened with",
-               ASSERT_EQ(audioConfig.sampleRateHz, extract(stream->getSampleRate())))
-
-TEST_IO_STREAM(GetChannelMask, "Check that the stream channel mask == the one it was opened with",
-               ASSERT_EQ(audioConfig.channelMask, extract(stream->getChannelMask())))
-
-TEST_IO_STREAM(GetFormat, "Check that the stream format == the one it was opened with",
-               ASSERT_EQ(audioConfig.format, extract(stream->getFormat())))
-
-// TODO: for now only check that the framesize is not incoherent
-TEST_IO_STREAM(GetFrameSize, "Check that the stream frame size == the one it was opened with",
-               ASSERT_GT(extract(stream->getFrameSize()), 0U))
-
-TEST_IO_STREAM(GetBufferSize, "Check that the stream buffer size== the one it was opened with",
-               ASSERT_GE(extract(stream->getBufferSize()), extract(stream->getFrameSize())));
-
-template <class Property, class CapabilityGetter>
-static void testCapabilityGetter(const string& name, IStream* stream,
-                                 CapabilityGetter capablityGetter,
-                                 Return<Property> (IStream::*getter)(),
-                                 Return<Result> (IStream::*setter)(Property),
-                                 bool currentMustBeSupported = true) {
-    hidl_vec<Property> capabilities;
-    ASSERT_OK((stream->*capablityGetter)(returnIn(capabilities)));
-    if (capabilities.size() == 0) {
-        // The default hal should probably return a NOT_SUPPORTED if the hal
-        // does not expose
-        // capability retrieval. For now it returns an empty list if not
-        // implemented
-        doc::partialTest(name + " is not supported");
-        return;
-    };
-
-    if (currentMustBeSupported) {
-        Property currentValue = extract((stream->*getter)());
-        EXPECT_NE(std::find(capabilities.begin(), capabilities.end(), currentValue),
-                  capabilities.end())
-            << "current " << name << " is not in the list of the supported ones "
-            << toString(capabilities);
-    }
-
-    // Check that all declared supported values are indeed supported
-    for (auto capability : capabilities) {
-        auto ret = (stream->*setter)(capability);
-        ASSERT_TRUE(ret.isOk());
-        if (ret == Result::NOT_SUPPORTED) {
-            doc::partialTest("Setter is not supported");
-            return;
-        }
-        ASSERT_OK(ret);
-        ASSERT_EQ(capability, extract((stream->*getter)()));
-    }
-}
-
-TEST_IO_STREAM(SupportedSampleRate, "Check that the stream sample rate is declared as supported",
-               testCapabilityGetter("getSupportedSampleRate", stream.get(),
-                                    &IStream::getSupportedSampleRates, &IStream::getSampleRate,
-                                    &IStream::setSampleRate,
-                                    // getSupportedSampleRate returns the native sampling rates,
-                                    // (the sampling rates that can be played without resampling)
-                                    // but other sampling rates can be supported by the HAL.
-                                    false))
-
-TEST_IO_STREAM(SupportedChannelMask, "Check that the stream channel mask is declared as supported",
-               testCapabilityGetter("getSupportedChannelMask", stream.get(),
-                                    &IStream::getSupportedChannelMasks, &IStream::getChannelMask,
-                                    &IStream::setChannelMask))
-
-TEST_IO_STREAM(SupportedFormat, "Check that the stream format is declared as supported",
-               testCapabilityGetter("getSupportedFormat", stream.get(),
-                                    &IStream::getSupportedFormats, &IStream::getFormat,
-                                    &IStream::setFormat))
-
-static void testGetDevice(IStream* stream, AudioDevice expectedDevice) {
-    // Unfortunately the interface does not allow the implementation to return
-    // NOT_SUPPORTED
-    // Thus allow NONE as signaling that the call is not supported.
-    auto ret = stream->getDevice();
-    ASSERT_IS_OK(ret);
-    AudioDevice device = ret;
-    ASSERT_TRUE(device == expectedDevice || device == AudioDevice::NONE)
-        << "Expected: " << ::testing::PrintToString(expectedDevice)
-        << "\n  Actual: " << ::testing::PrintToString(device);
-}
-
-TEST_IO_STREAM(GetDevice, "Check that the stream device == the one it was opened with",
-               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
-                                          : testGetDevice(stream.get(), address.device))
-
-static void testSetDevice(IStream* stream, const DeviceAddress& address) {
-    DeviceAddress otherAddress = address;
-    otherAddress.device = (address.device & AudioDevice::BIT_IN) == 0 ? AudioDevice::OUT_SPEAKER
-                                                                      : AudioDevice::IN_BUILTIN_MIC;
-    EXPECT_OK(stream->setDevice(otherAddress));
-
-    ASSERT_OK(stream->setDevice(address));  // Go back to the original value
-}
-
-TEST_IO_STREAM(SetDevice, "Check that the stream can be rerouted to SPEAKER or BUILTIN_MIC",
-               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
-                                          : testSetDevice(stream.get(), address))
-
-static void testGetAudioProperties(IStream* stream, AudioConfig expectedConfig) {
-    uint32_t sampleRateHz;
-    AudioChannelMask mask;
-    AudioFormat format;
-
-    stream->getAudioProperties(returnIn(sampleRateHz, mask, format));
-
-    // FIXME: the qcom hal it does not currently negotiate the sampleRate &
-    // channel mask
-    EXPECT_EQ(expectedConfig.sampleRateHz, sampleRateHz);
-    EXPECT_EQ(expectedConfig.channelMask, mask);
-    EXPECT_EQ(expectedConfig.format, format);
-}
-
-TEST_IO_STREAM(GetAudioProperties,
-               "Check that the stream audio properties == the ones it was opened with",
-               testGetAudioProperties(stream.get(), audioConfig))
-
-static void testConnectedState(IStream* stream) {
-    DeviceAddress address = {};
-    using AD = AudioDevice;
-    for (auto device : {AD::OUT_HDMI, AD::OUT_WIRED_HEADPHONE, AD::IN_USB_HEADSET}) {
-        address.device = device;
-
-        ASSERT_OK(stream->setConnectedState(address, true));
-        ASSERT_OK(stream->setConnectedState(address, false));
-    }
-}
-TEST_IO_STREAM(SetConnectedState,
-               "Check that the stream can be notified of device connection and "
-               "deconnection",
-               testConnectedState(stream.get()))
-
-static auto invalidArgsOrNotSupportedOrOK = {Result::INVALID_ARGUMENTS, Result::NOT_SUPPORTED,
-                                             Result::OK};
-TEST_IO_STREAM(SetHwAvSync, "Try to set hardware sync to an invalid value",
-               ASSERT_RESULT(invalidArgsOrNotSupportedOrOK, stream->setHwAvSync(666)))
-
-TEST_IO_STREAM(GetHwAvSync, "Get hardware sync can not fail", ASSERT_IS_OK(device->getHwAvSync()));
-
-static void checkGetNoParameter(IStream* stream, hidl_vec<hidl_string> keys,
-                                initializer_list<Result> expectedResults) {
-    hidl_vec<ParameterValue> parameters;
-    Result res;
-    ASSERT_OK(stream->getParameters(keys, returnIn(res, parameters)));
-    ASSERT_RESULT(expectedResults, res);
-    if (res == Result::OK) {
-        for (auto& parameter : parameters) {
-            ASSERT_EQ(0U, parameter.value.size()) << toString(parameter);
-        }
-    }
-}
-
-/* Get/Set parameter is intended to be an opaque channel between vendors app and
- * their HALs.
- * Thus can not be meaningfully tested.
- */
-TEST_IO_STREAM(getEmptySetParameter, "Retrieve the values of an empty set",
-               checkGetNoParameter(stream.get(), {} /* keys */, {Result::OK}))
-
-TEST_IO_STREAM(getNonExistingParameter, "Retrieve the values of an non existing parameter",
-               checkGetNoParameter(stream.get(), {"Non existing key"} /* keys */,
-                                   {Result::NOT_SUPPORTED}))
-
-TEST_IO_STREAM(setEmptySetParameter, "Set the values of an empty set of parameters",
-               ASSERT_RESULT(Result::OK, stream->setParameters({})))
-
-TEST_IO_STREAM(setNonExistingParameter, "Set the values of an non existing parameter",
-               // Unfortunately, the set_parameter legacy interface did not return any
-               // error code when a key is not supported.
-               // To allow implementation to just wrapped the legacy one, consider OK as a
-               // valid result for setting a non existing parameter.
-               ASSERT_RESULT(invalidArgsOrNotSupportedOrOK,
-                             stream->setParameters({{"non existing key", "0"}})))
-
-TEST_IO_STREAM(DebugDump, "Check that a stream can dump its state without error",
-               testDebugDump([this](const auto& handle) { return stream->debugDump(handle); }))
-
-TEST_IO_STREAM(DebugDumpInvalidArguments,
-               "Check that the stream dump doesn't crash on invalid arguments",
-               ASSERT_OK(stream->debugDump(hidl_handle())))
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////////////// addRemoveEffect ///////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_IO_STREAM(AddNonExistingEffect, "Adding a non existing effect should fail",
-               ASSERT_RESULT(Result::INVALID_ARGUMENTS, stream->addEffect(666)))
-TEST_IO_STREAM(RemoveNonExistingEffect, "Removing a non existing effect should fail",
-               ASSERT_RESULT(Result::INVALID_ARGUMENTS, stream->removeEffect(666)))
-
-// TODO: positive tests
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// Control ////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_IO_STREAM(standby, "Make sure the stream can be put in stanby",
-               ASSERT_OK(stream->standby()))  // can not fail
-
-static constexpr auto invalidStateOrNotSupported = {Result::INVALID_STATE, Result::NOT_SUPPORTED};
-
-TEST_IO_STREAM(startNoMmap, "Starting a mmaped stream before mapping it should fail",
-               ASSERT_RESULT(invalidStateOrNotSupported, stream->start()))
-
-TEST_IO_STREAM(stopNoMmap, "Stopping a mmaped stream before mapping it should fail",
-               ASSERT_RESULT(invalidStateOrNotSupported, stream->stop()))
-
-TEST_IO_STREAM(getMmapPositionNoMmap, "Get a stream Mmap position before mapping it should fail",
-               ASSERT_RESULT(invalidStateOrNotSupported, stream->stop()))
-
-TEST_IO_STREAM(close, "Make sure a stream can be closed", ASSERT_OK(closeStream()))
-TEST_IO_STREAM(closeTwice, "Make sure a stream can not be closed twice", ASSERT_OK(closeStream());
-               ASSERT_RESULT(Result::INVALID_STATE, closeStream()))
-
-static auto invalidArgsOrNotSupported = {Result::INVALID_ARGUMENTS, Result::NOT_SUPPORTED};
-static void testCreateTooBigMmapBuffer(IStream* stream) {
-    MmapBufferInfo info;
-    Result res;
-    // Assume that int max is a value too big to be allocated
-    // This is true currently with a 32bit media server, but might not when it
-    // will run in 64 bit
-    auto minSizeFrames = std::numeric_limits<int32_t>::max();
-    ASSERT_OK(stream->createMmapBuffer(minSizeFrames, returnIn(res, info)));
-    ASSERT_RESULT(invalidArgsOrNotSupported, res);
-}
-
-TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer too big should fail",
-               testCreateTooBigMmapBuffer(stream.get()))
-
-static void testGetMmapPositionOfNonMmapedStream(IStream* stream) {
-    Result res;
-    MmapPosition position;
-    ASSERT_OK(stream->getMmapPosition(returnIn(res, position)));
-    ASSERT_RESULT(invalidArgsOrNotSupported, res);
-}
-
-TEST_IO_STREAM(GetMmapPositionOfNonMmapedStream,
-               "Retrieving the mmap position of a non mmaped stream should fail",
-               testGetMmapPositionOfNonMmapedStream(stream.get()))
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////////////////// StreamIn ///////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_P(InputStreamTest, GetAudioSource) {
-    doc::test("Retrieving the audio source of an input stream should always succeed");
-    AudioSource source;
-    ASSERT_OK(stream->getAudioSource(returnIn(res, source)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getAudioSource is not supported");
-        return;
-    }
-    ASSERT_OK(res);
-    ASSERT_EQ(AudioSource::DEFAULT, source);
-}
-
-static void testUnitaryGain(std::function<Return<Result>(float)> setGain) {
-    for (float value : (float[]){-INFINITY, -1.0, 1.0 + std::numeric_limits<float>::epsilon(), 2.0,
-                                 INFINITY, NAN}) {
-        EXPECT_RESULT(Result::INVALID_ARGUMENTS, setGain(value)) << "value=" << value;
-    }
-    // Do not consider -0.0 as an invalid value as it is == with 0.0
-    for (float value : {-0.0, 0.0, 0.01, 0.5, 0.09, 1.0 /* Restore volume*/}) {
-        EXPECT_OK(setGain(value)) << "value=" << value;
-    }
-}
-
-static void testOptionalUnitaryGain(std::function<Return<Result>(float)> setGain,
-                                    string debugName) {
-    auto result = setGain(1);
-    ASSERT_IS_OK(result);
-    if (result == Result::NOT_SUPPORTED) {
-        doc::partialTest(debugName + " is not supported");
-        return;
-    }
-    testUnitaryGain(setGain);
-}
-
-TEST_P(InputStreamTest, SetGain) {
-    doc::test("The gain of an input stream should only be set between [0,1]");
-    testOptionalUnitaryGain([this](float volume) { return stream->setGain(volume); },
-                            "InputStream::setGain");
-}
-
-static void testPrepareForReading(IStreamIn* stream, uint32_t frameSize, uint32_t framesCount) {
-    Result res;
-    // Ignore output parameters as the call should fail
-    ASSERT_OK(stream->prepareForReading(frameSize, framesCount,
-                                        [&res](auto r, auto&, auto&, auto&, auto&) { res = r; }));
-    EXPECT_RESULT(Result::INVALID_ARGUMENTS, res);
-}
-
-TEST_P(InputStreamTest, PrepareForReadingWithZeroBuffer) {
-    doc::test("Preparing a stream for reading with a 0 sized buffer should fail");
-    testPrepareForReading(stream.get(), 0, 0);
-}
-
-TEST_P(InputStreamTest, PrepareForReadingWithHugeBuffer) {
-    doc::test("Preparing a stream for reading with a 2^32 sized buffer should fail");
-    testPrepareForReading(stream.get(), 1, std::numeric_limits<uint32_t>::max());
-}
-
-TEST_P(InputStreamTest, PrepareForReadingCheckOverflow) {
-    doc::test(
-        "Preparing a stream for reading with a overflowing sized buffer should "
-        "fail");
-    auto uintMax = std::numeric_limits<uint32_t>::max();
-    testPrepareForReading(stream.get(), uintMax, uintMax);
-}
-
-TEST_P(InputStreamTest, GetInputFramesLost) {
-    doc::test("The number of frames lost on a never started stream should be 0");
-    auto ret = stream->getInputFramesLost();
-    ASSERT_IS_OK(ret);
-    uint32_t framesLost{ret};
-    ASSERT_EQ(0U, framesLost);
-}
-
-TEST_P(InputStreamTest, getCapturePosition) {
-    doc::test(
-        "The capture position of a non prepared stream should not be "
-        "retrievable");
-    uint64_t frames;
-    uint64_t time;
-    ASSERT_OK(stream->getCapturePosition(returnIn(res, frames, time)));
-    ASSERT_RESULT(invalidStateOrNotSupported, res);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////////////////// StreamIn ///////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_P(OutputStreamTest, getLatency) {
-    doc::test("Make sure latency is over 0");
-    auto result = stream->getLatency();
-    ASSERT_IS_OK(result);
-    ASSERT_GT(result, 0U);
-}
-
-TEST_P(OutputStreamTest, setVolume) {
-    doc::test("Try to set the output volume");
-    testOptionalUnitaryGain([this](float volume) { return stream->setVolume(volume, volume); },
-                            "setVolume");
-}
-
-static void testPrepareForWriting(IStreamOut* stream, uint32_t frameSize, uint32_t framesCount) {
-    Result res;
-    // Ignore output parameters as the call should fail
-    ASSERT_OK(stream->prepareForWriting(frameSize, framesCount,
-                                        [&res](auto r, auto&, auto&, auto&, auto&) { res = r; }));
-    EXPECT_RESULT(Result::INVALID_ARGUMENTS, res);
-}
-
-TEST_P(OutputStreamTest, PrepareForWriteWithZeroBuffer) {
-    doc::test("Preparing a stream for writing with a 0 sized buffer should fail");
-    testPrepareForWriting(stream.get(), 0, 0);
-}
-
-TEST_P(OutputStreamTest, PrepareForWriteWithHugeBuffer) {
-    doc::test("Preparing a stream for writing with a 2^32 sized buffer should fail");
-    testPrepareForWriting(stream.get(), 1, std::numeric_limits<uint32_t>::max());
-}
-
-TEST_P(OutputStreamTest, PrepareForWritingCheckOverflow) {
-    doc::test(
-        "Preparing a stream for writing with a overflowing sized buffer should "
-        "fail");
-    auto uintMax = std::numeric_limits<uint32_t>::max();
-    testPrepareForWriting(stream.get(), uintMax, uintMax);
-}
-
-struct Capability {
-    Capability(IStreamOut* stream) {
-        EXPECT_OK(stream->supportsPauseAndResume(returnIn(pause, resume)));
-        auto ret = stream->supportsDrain();
-        EXPECT_IS_OK(ret);
-        if (ret.isOk()) {
-            drain = ret;
-        }
-    }
-    bool pause = false;
-    bool resume = false;
-    bool drain = false;
-};
-
-TEST_P(OutputStreamTest, SupportsPauseAndResumeAndDrain) {
-    doc::test("Implementation must expose pause, resume and drain capabilities");
-    Capability(stream.get());
-}
-
-template <class Value>
-static void checkInvalidStateOr0(Result res, Value value) {
-    switch (res) {
-        case Result::INVALID_STATE:
-            break;
-        case Result::OK:
-            ASSERT_EQ(0U, value);
-            break;
-        default:
-            FAIL() << "Unexpected result " << toString(res);
-    }
-}
-
-TEST_P(OutputStreamTest, GetRenderPosition) {
-    doc::test("A new stream render position should be 0 or INVALID_STATE");
-    uint32_t dspFrames;
-    ASSERT_OK(stream->getRenderPosition(returnIn(res, dspFrames)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getRenderPosition is not supported");
-        return;
-    }
-    checkInvalidStateOr0(res, dspFrames);
-}
-
-TEST_P(OutputStreamTest, GetNextWriteTimestamp) {
-    doc::test("A new stream next write timestamp should be 0 or INVALID_STATE");
-    uint64_t timestampUs;
-    ASSERT_OK(stream->getNextWriteTimestamp(returnIn(res, timestampUs)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getNextWriteTimestamp is not supported");
-        return;
-    }
-    checkInvalidStateOr0(res, timestampUs);
-}
-
-/** Stub implementation of out stream callback. */
-class MockOutCallbacks : public IStreamOutCallback {
-    Return<void> onWriteReady() override { return {}; }
-    Return<void> onDrainReady() override { return {}; }
-    Return<void> onError() override { return {}; }
-};
-
-static bool isAsyncModeSupported(IStreamOut* stream) {
-    auto res = stream->setCallback(new MockOutCallbacks);
-    stream->clearCallback();  // try to restore the no callback state, ignore
-                              // any error
-    auto okOrNotSupported = {Result::OK, Result::NOT_SUPPORTED};
-    EXPECT_RESULT(okOrNotSupported, res);
-    return res.isOk() ? res == Result::OK : false;
-}
-
-TEST_P(OutputStreamTest, SetCallback) {
-    doc::test(
-        "If supported, registering callback for async operation should never "
-        "fail");
-    if (!isAsyncModeSupported(stream.get())) {
-        doc::partialTest("The stream does not support async operations");
-        return;
-    }
-    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
-    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
-}
-
-TEST_P(OutputStreamTest, clearCallback) {
-    doc::test(
-        "If supported, clearing a callback to go back to sync operation should "
-        "not fail");
-    if (!isAsyncModeSupported(stream.get())) {
-        doc::partialTest("The stream does not support async operations");
-        return;
-    }
-    // TODO: Clarify if clearing a non existing callback should fail
-    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
-    ASSERT_OK(stream->clearCallback());
-}
-
-TEST_P(OutputStreamTest, Resume) {
-    doc::test(
-        "If supported, a stream should fail to resume if not previously "
-        "paused");
-    if (!Capability(stream.get()).resume) {
-        doc::partialTest("The output stream does not support resume");
-        return;
-    }
-    ASSERT_RESULT(Result::INVALID_STATE, stream->resume());
-}
-
-TEST_P(OutputStreamTest, Pause) {
-    doc::test(
-        "If supported, a stream should fail to pause if not previously "
-        "started");
-    if (!Capability(stream.get()).pause) {
-        doc::partialTest("The output stream does not support pause");
-        return;
-    }
-    ASSERT_RESULT(Result::INVALID_STATE, stream->resume());
-}
-
-static void testDrain(IStreamOut* stream, AudioDrain type) {
-    if (!Capability(stream).drain) {
-        doc::partialTest("The output stream does not support drain");
-        return;
-    }
-    ASSERT_RESULT(Result::OK, stream->drain(type));
-}
-
-TEST_P(OutputStreamTest, DrainAll) {
-    doc::test("If supported, a stream should always succeed to drain");
-    testDrain(stream.get(), AudioDrain::ALL);
-}
-
-TEST_P(OutputStreamTest, DrainEarlyNotify) {
-    doc::test("If supported, a stream should always succeed to drain");
-    testDrain(stream.get(), AudioDrain::EARLY_NOTIFY);
-}
-
-TEST_P(OutputStreamTest, FlushStop) {
-    doc::test("If supported, a stream should always succeed to flush");
-    auto ret = stream->flush();
-    ASSERT_IS_OK(ret);
-    if (ret == Result::NOT_SUPPORTED) {
-        doc::partialTest("Flush is not supported");
-        return;
-    }
-    ASSERT_OK(ret);
-}
-
-TEST_P(OutputStreamTest, GetPresentationPositionStop) {
-    doc::test(
-        "If supported, a stream should always succeed to retrieve the "
-        "presentation position");
-    uint64_t frames;
-    TimeSpec mesureTS;
-    ASSERT_OK(stream->getPresentationPosition(returnIn(res, frames, mesureTS)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getpresentationPosition is not supported");
-        return;
-    }
-    ASSERT_EQ(0U, frames);
-
-    if (mesureTS.tvNSec == 0 && mesureTS.tvSec == 0) {
-        // As the stream has never written a frame yet,
-        // the timestamp does not really have a meaning, allow to return 0
-        return;
-    }
-
-    // Make sure the return measure is not more than 1s old.
-    struct timespec currentTS;
-    ASSERT_EQ(0, clock_gettime(CLOCK_MONOTONIC, &currentTS)) << errno;
-
-    auto toMicroSec = [](uint64_t sec, auto nsec) { return sec * 1e+6 + nsec / 1e+3; };
-    auto currentTime = toMicroSec(currentTS.tv_sec, currentTS.tv_nsec);
-    auto mesureTime = toMicroSec(mesureTS.tvSec, mesureTS.tvNSec);
-    ASSERT_PRED2([](auto c, auto m) { return c - m < 1e+6; }, currentTime, mesureTime);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// PrimaryDevice ////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, setVoiceVolume) {
-    doc::test("Make sure setVoiceVolume only succeed if volume is in [0,1]");
-    testUnitaryGain([](float volume) { return device->setVoiceVolume(volume); });
-}
-
-TEST_F(AudioPrimaryHidlTest, setMode) {
-    doc::test(
-        "Make sure setMode always succeeds if mode is valid "
-        "and fails otherwise");
-    // Test Invalid values
-    for (AudioMode mode : {AudioMode::INVALID, AudioMode::CURRENT, AudioMode::CNT}) {
-        SCOPED_TRACE("mode=" + toString(mode));
-        ASSERT_RESULT(Result::INVALID_ARGUMENTS, device->setMode(mode));
-    }
-    // Test valid values
-    for (AudioMode mode : {AudioMode::IN_CALL, AudioMode::IN_COMMUNICATION, AudioMode::RINGTONE,
-                           AudioMode::NORMAL /* Make sure to leave the test in normal mode */}) {
-        SCOPED_TRACE("mode=" + toString(mode));
-        ASSERT_OK(device->setMode(mode));
-    }
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, BtScoNrecEnabled) {
-    doc::test("Query and set the BT SCO NR&EC state");
-    testOptionalAccessors("BtScoNrecEnabled", {true, false, true},
-                          &IPrimaryDevice::setBtScoNrecEnabled,
-                          &IPrimaryDevice::getBtScoNrecEnabled);
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, setGetBtScoWidebandEnabled) {
-    doc::test("Query and set the SCO whideband state");
-    testOptionalAccessors("BtScoWideband", {true, false, true},
-                          &IPrimaryDevice::setBtScoWidebandEnabled,
-                          &IPrimaryDevice::getBtScoWidebandEnabled);
-}
-
-using TtyModeAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<TtyMode>;
-TEST_F(TtyModeAccessorPrimaryHidlTest, setGetTtyMode) {
-    doc::test("Query and set the TTY mode state");
-    testOptionalAccessors("TTY mode", {TtyMode::OFF, TtyMode::HCO, TtyMode::VCO, TtyMode::FULL},
-                          &IPrimaryDevice::setTtyMode, &IPrimaryDevice::getTtyMode);
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, setGetHac) {
-    doc::test("Query and set the HAC state");
-    testOptionalAccessors("HAC", {true, false, true}, &IPrimaryDevice::setHacEnabled,
-                          &IPrimaryDevice::getHacEnabled);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////// Clean caches on global tear down ////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-int main(int argc, char** argv) {
-    environment = new AudioHidlTestEnvironment;
-    ::testing::AddGlobalTestEnvironment(environment);
-    ::testing::InitGoogleTest(&argc, argv);
-    environment->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    return status;
-}
diff --git a/audio/core/2.0/vts/functional/ValidateAudioConfiguration.cpp b/audio/core/2.0/vts/functional/ValidateAudioConfiguration.cpp
deleted file mode 100644
index bef0e82..0000000
--- a/audio/core/2.0/vts/functional/ValidateAudioConfiguration.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <unistd.h>
-#include <string>
-
-#include "utility/ValidateXml.h"
-
-TEST(CheckConfig, audioPolicyConfigurationValidation) {
-    RecordProperty("description",
-                   "Verify that the audio policy configuration file "
-                   "is valid according to the schema");
-
-    std::vector<const char*> locations = {"/odm/etc", "/vendor/etc", "/system/etc"};
-    EXPECT_ONE_VALID_XML_MULTIPLE_LOCATIONS("audio_policy_configuration.xml", locations,
-                                            "/data/local/tmp/audio_policy_configuration.xsd");
-}
diff --git a/audio/core/4.0/default/Android.bp b/audio/core/4.0/default/Android.bp
deleted file mode 100644
index 8e41545..0000000
--- a/audio/core/4.0/default/Android.bp
+++ /dev/null
@@ -1,53 +0,0 @@
-cc_library_shared {
-    name: "android.hardware.audio@4.0-impl",
-    relative_install_path: "hw",
-    proprietary: true,
-    vendor: true,
-    srcs: [
-        "Conversions.cpp",
-        "Device.cpp",
-        "DevicesFactory.cpp",
-        "ParametersUtil.cpp",
-        "PrimaryDevice.cpp",
-        "Stream.cpp",
-        "StreamIn.cpp",
-        "StreamOut.cpp",
-    ],
-
-    cflags: [
-        "-DAUDIO_HAL_VERSION_4_0",
-    ],
-
-    defaults: ["hidl_defaults"],
-
-    export_include_dirs: ["include"],
-
-    shared_libs: [
-        "libbase",
-        "libcutils",
-        "libfmq",
-        "libhardware",
-        "libhidlbase",
-        "libhidltransport",
-        "liblog",
-        "libutils",
-        "android.hardware.audio@4.0",
-        "android.hardware.audio.common@4.0",
-        "android.hardware.audio.common@4.0-util",
-        "android.hardware.audio.common-util",
-    ],
-
-    header_libs: [
-        "android.hardware.audio.common.util@all-versions",
-        "android.hardware.audio.core@all-versions-impl",
-        "libaudioclient_headers",
-        "libaudio_system_headers",
-        "libhardware_headers",
-        "libmedia_headers",
-    ],
-
-    whole_static_libs: [
-        "libmedia_helper",
-    ],
-
-}
diff --git a/audio/core/4.0/default/Conversions.cpp b/audio/core/4.0/default/Conversions.cpp
deleted file mode 100644
index 4f18744..0000000
--- a/audio/core/4.0/default/Conversions.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "core/4.0/default/Conversions.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Conversions.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/Device.cpp b/audio/core/4.0/default/Device.cpp
deleted file mode 100644
index b33434e..0000000
--- a/audio/core/4.0/default/Device.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "DeviceHAL"
-
-#include "core/4.0/default/Device.h"
-#include <HidlUtils.h>
-#include "core/4.0/default/Conversions.h"
-#include "core/4.0/default/StreamIn.h"
-#include "core/4.0/default/StreamOut.h"
-#include "core/4.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Device.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/DevicesFactory.cpp b/audio/core/4.0/default/DevicesFactory.cpp
deleted file mode 100644
index cb8a3c3..0000000
--- a/audio/core/4.0/default/DevicesFactory.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "DevicesFactoryHAL"
-
-#include "core/4.0/default/DevicesFactory.h"
-#include "core/4.0/default/Device.h"
-#include "core/4.0/default/PrimaryDevice.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/DevicesFactory.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/OWNERS b/audio/core/4.0/default/OWNERS
deleted file mode 100644
index 6fdc97c..0000000
--- a/audio/core/4.0/default/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
diff --git a/audio/core/4.0/default/ParametersUtil.cpp b/audio/core/4.0/default/ParametersUtil.cpp
deleted file mode 100644
index 2cc9fb5..0000000
--- a/audio/core/4.0/default/ParametersUtil.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "core/4.0/default/ParametersUtil.h"
-#include "core/4.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/ParametersUtil.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/PrimaryDevice.cpp b/audio/core/4.0/default/PrimaryDevice.cpp
deleted file mode 100644
index e3e4976..0000000
--- a/audio/core/4.0/default/PrimaryDevice.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "PrimaryDeviceHAL"
-
-#include "core/4.0/default/PrimaryDevice.h"
-#include "core/4.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/PrimaryDevice.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/Stream.cpp b/audio/core/4.0/default/Stream.cpp
deleted file mode 100644
index b8c71de..0000000
--- a/audio/core/4.0/default/Stream.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "StreamHAL"
-
-#include "core/4.0/default/Stream.h"
-#include "common/all-versions/default/EffectMap.h"
-#include "core/4.0/default/Conversions.h"
-#include "core/4.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Stream.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/StreamIn.cpp b/audio/core/4.0/default/StreamIn.cpp
deleted file mode 100644
index 718bd25..0000000
--- a/audio/core/4.0/default/StreamIn.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "StreamInHAL"
-
-#include "core/4.0/default/StreamIn.h"
-#include "core/4.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/StreamIn.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/StreamOut.cpp b/audio/core/4.0/default/StreamOut.cpp
deleted file mode 100644
index db88e40..0000000
--- a/audio/core/4.0/default/StreamOut.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "StreamOutHAL"
-
-#include "core/4.0/default/StreamOut.h"
-#include "core/4.0/default/Util.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/StreamOut.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/core/4.0/default/include/core/4.0/default/Conversions.h b/audio/core/4.0/default/include/core/4.0/default/Conversions.h
deleted file mode 100644
index 32c2f88..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/Conversions.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_CONVERSIONS_H_
-#define ANDROID_HARDWARE_AUDIO_V4_0_CONVERSIONS_H_
-
-#include <android/hardware/audio/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Conversions.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_CONVERSIONS_H_
diff --git a/audio/core/4.0/default/include/core/4.0/default/Device.h b/audio/core/4.0/default/include/core/4.0/default/Device.h
deleted file mode 100644
index 770d606..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/Device.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_DEVICE_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_DEVICE_H
-
-#include <android/hardware/audio/4.0/IDevice.h>
-
-#include "ParametersUtil.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Device.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_DEVICE_H
diff --git a/audio/core/4.0/default/include/core/4.0/default/DevicesFactory.h b/audio/core/4.0/default/include/core/4.0/default/DevicesFactory.h
deleted file mode 100644
index 200e59d..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/DevicesFactory.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_DEVICESFACTORY_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_DEVICESFACTORY_H
-
-#include <android/hardware/audio/4.0/IDevicesFactory.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/DevicesFactory.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_DEVICESFACTORY_H
diff --git a/audio/core/4.0/default/include/core/4.0/default/ParametersUtil.h b/audio/core/4.0/default/include/core/4.0/default/ParametersUtil.h
deleted file mode 100644
index fa31ee9..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/ParametersUtil.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_PARAMETERS_UTIL_H_
-#define ANDROID_HARDWARE_AUDIO_V4_0_PARAMETERS_UTIL_H_
-
-#include <android/hardware/audio/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/ParametersUtil.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_PARAMETERS_UTIL_H_
diff --git a/audio/core/4.0/default/include/core/4.0/default/PrimaryDevice.h b/audio/core/4.0/default/include/core/4.0/default/PrimaryDevice.h
deleted file mode 100644
index e7f846b..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/PrimaryDevice.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_PRIMARYDEVICE_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_PRIMARYDEVICE_H
-
-#include <android/hardware/audio/4.0/IPrimaryDevice.h>
-
-#include "Device.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/PrimaryDevice.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_PRIMARYDEVICE_H
diff --git a/audio/core/4.0/default/include/core/4.0/default/Stream.h b/audio/core/4.0/default/include/core/4.0/default/Stream.h
deleted file mode 100644
index afad80f..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/Stream.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_STREAM_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_STREAM_H
-
-#include <android/hardware/audio/4.0/IStream.h>
-
-#include "ParametersUtil.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Stream.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_STREAM_H
diff --git a/audio/core/4.0/default/include/core/4.0/default/StreamIn.h b/audio/core/4.0/default/include/core/4.0/default/StreamIn.h
deleted file mode 100644
index 151f03f..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/StreamIn.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_STREAMIN_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_STREAMIN_H
-
-#include <android/hardware/audio/4.0/IStreamIn.h>
-
-#include "Device.h"
-#include "Stream.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/StreamIn.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_STREAMIN_H
diff --git a/audio/core/4.0/default/include/core/4.0/default/StreamOut.h b/audio/core/4.0/default/include/core/4.0/default/StreamOut.h
deleted file mode 100644
index dbf3bd1..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/StreamOut.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_STREAMOUT_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_STREAMOUT_H
-
-#include <android/hardware/audio/4.0/IStreamOut.h>
-
-#include "Device.h"
-#include "Stream.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/StreamOut.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_STREAMOUT_H
diff --git a/audio/core/4.0/default/include/core/4.0/default/Util.h b/audio/core/4.0/default/include/core/4.0/default/Util.h
deleted file mode 100644
index ce31e6f..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/Util.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_UTIL_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_UTIL_H
-
-#include <android/hardware/audio/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Util.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_UTIL_H
diff --git a/audio/core/4.0/vts/OWNERS b/audio/core/4.0/vts/OWNERS
deleted file mode 100644
index 8711a9f..0000000
--- a/audio/core/4.0/vts/OWNERS
+++ /dev/null
@@ -1,5 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
-yim@google.com
-zhuoyao@google.com
\ No newline at end of file
diff --git a/audio/core/4.0/vts/functional/Android.bp b/audio/core/4.0/vts/functional/Android.bp
deleted file mode 100644
index b2d9af4..0000000
--- a/audio/core/4.0/vts/functional/Android.bp
+++ /dev/null
@@ -1,37 +0,0 @@
-//
-// Copyright (C) 2017 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-cc_test {
-    name: "VtsHalAudioV4_0TargetTest",
-    defaults: ["VtsHalTargetTestDefaults"],
-    srcs: [
-        "AudioPrimaryHidlHalTest.cpp",
-        "ValidateAudioConfiguration.cpp"
-    ],
-    static_libs: [
-        "android.hardware.audio.common.test.utility",
-        "android.hardware.audio@4.0",
-        "android.hardware.audio.common@4.0",
-        "libxml2",
-    ],
-    shared_libs: [
-        "libfmq",
-    ],
-    header_libs: [
-        "android.hardware.audio.common.util@all-versions",
-    ],
-    test_suites: ["general-tests"],
-}
diff --git a/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp b/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp
deleted file mode 100644
index 8a8338b..0000000
--- a/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp
+++ /dev/null
@@ -1,1554 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "VtsHalAudioV4_0TargetTest"
-
-#include <algorithm>
-#include <cmath>
-#include <cstddef>
-#include <cstdio>
-#include <initializer_list>
-#include <limits>
-#include <list>
-#include <string>
-#include <vector>
-
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <hwbinder/IPCThreadState.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-
-#include <android-base/logging.h>
-
-#include <android/hardware/audio/4.0/IDevice.h>
-#include <android/hardware/audio/4.0/IDevicesFactory.h>
-#include <android/hardware/audio/4.0/IPrimaryDevice.h>
-#include <android/hardware/audio/4.0/types.h>
-#include <android/hardware/audio/common/4.0/types.h>
-#include <fmq/EventFlag.h>
-#include <fmq/MessageQueue.h>
-
-#include <common/all-versions/VersionUtils.h>
-
-#include "utility/AssertOk.h"
-#include "utility/Documentation.h"
-#include "utility/EnvironmentTearDown.h"
-#define AUDIO_HAL_VERSION V4_0
-#include "utility/PrettyPrintAudioTypes.h"
-#include "utility/ReturnIn.h"
-
-using std::initializer_list;
-using std::string;
-using std::to_string;
-using std::vector;
-using std::list;
-
-using ::android::sp;
-using ::android::hardware::EventFlag;
-using ::android::hardware::hidl_bitfield;
-using ::android::hardware::hidl_enum_range;
-using ::android::hardware::hidl_handle;
-using ::android::hardware::hidl_string;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::IPCThreadState;
-using ::android::hardware::MessageQueue;
-using ::android::hardware::MQDescriptorSync;
-using ::android::hardware::Return;
-using ::android::hardware::audio::V4_0::AudioDrain;
-using ::android::hardware::audio::V4_0::DeviceAddress;
-using ::android::hardware::audio::V4_0::IDevice;
-using ::android::hardware::audio::V4_0::IPrimaryDevice;
-using Rotation = ::android::hardware::audio::V4_0::IPrimaryDevice::Rotation;
-using TtyMode = ::android::hardware::audio::V4_0::IPrimaryDevice::TtyMode;
-using ::android::hardware::audio::V4_0::IDevicesFactory;
-using ::android::hardware::audio::V4_0::IStream;
-using ::android::hardware::audio::V4_0::IStreamIn;
-using ::android::hardware::audio::V4_0::MessageQueueFlagBits;
-using ::android::hardware::audio::V4_0::TimeSpec;
-using ReadParameters = ::android::hardware::audio::V4_0::IStreamIn::ReadParameters;
-using ReadStatus = ::android::hardware::audio::V4_0::IStreamIn::ReadStatus;
-using ::android::hardware::audio::V4_0::IStreamOut;
-using ::android::hardware::audio::V4_0::IStreamOutCallback;
-using ::android::hardware::audio::V4_0::MicrophoneInfo;
-using ::android::hardware::audio::V4_0::MmapBufferInfo;
-using ::android::hardware::audio::V4_0::MmapPosition;
-using ::android::hardware::audio::V4_0::ParameterValue;
-using ::android::hardware::audio::V4_0::Result;
-using ::android::hardware::audio::V4_0::SourceMetadata;
-using ::android::hardware::audio::V4_0::SinkMetadata;
-using ::android::hardware::audio::common::V4_0::AudioChannelMask;
-using ::android::hardware::audio::common::V4_0::AudioConfig;
-using ::android::hardware::audio::common::V4_0::AudioContentType;
-using ::android::hardware::audio::common::V4_0::AudioDevice;
-using ::android::hardware::audio::common::V4_0::AudioFormat;
-using ::android::hardware::audio::common::V4_0::AudioHandleConsts;
-using ::android::hardware::audio::common::V4_0::AudioHwSync;
-using ::android::hardware::audio::common::V4_0::AudioInputFlag;
-using ::android::hardware::audio::common::V4_0::AudioIoHandle;
-using ::android::hardware::audio::common::V4_0::AudioMode;
-using ::android::hardware::audio::common::V4_0::AudioOffloadInfo;
-using ::android::hardware::audio::common::V4_0::AudioOutputFlag;
-using ::android::hardware::audio::common::V4_0::AudioSource;
-using ::android::hardware::audio::common::V4_0::AudioUsage;
-using ::android::hardware::audio::common::V4_0::ThreadInfo;
-using ::android::hardware::audio::common::utils::mkBitfield;
-
-using namespace ::android::hardware::audio::common::test::utility;
-
-// Typical accepted results from interface methods
-static auto okOrNotSupported = {Result::OK, Result::NOT_SUPPORTED};
-static auto okOrNotSupportedOrInvalidArgs = {Result::OK, Result::NOT_SUPPORTED,
-                                             Result::INVALID_ARGUMENTS};
-static auto okOrInvalidStateOrNotSupported = {Result::OK, Result::INVALID_STATE,
-                                              Result::NOT_SUPPORTED};
-static auto invalidArgsOrNotSupported = {Result::INVALID_ARGUMENTS, Result::NOT_SUPPORTED};
-static auto invalidStateOrNotSupported = {Result::INVALID_STATE, Result::NOT_SUPPORTED};
-
-class AudioHidlTestEnvironment : public ::Environment {
-   public:
-    virtual void registerTestServices() override { registerTestService<IDevicesFactory>(); }
-};
-
-// Instance to register global tearDown
-static AudioHidlTestEnvironment* environment;
-
-class HidlTest : public ::testing::VtsHalHidlTargetTestBase {
-   protected:
-    // Convenient member to store results
-    Result res;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////// getService audio_devices_factory //////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-// Test all audio devices
-class AudioHidlTest : public HidlTest {
-   public:
-    void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(HidlTest::SetUp());  // setup base
-
-        if (devicesFactory == nullptr) {
-            environment->registerTearDown([] { devicesFactory.clear(); });
-            devicesFactory = ::testing::VtsHalHidlTargetTestBase::getService<IDevicesFactory>(
-                environment->getServiceName<IDevicesFactory>("default"));
-        }
-        ASSERT_TRUE(devicesFactory != nullptr);
-    }
-
-   protected:
-    // Cache the devicesFactory retrieval to speed up each test by ~0.5s
-    static sp<IDevicesFactory> devicesFactory;
-};
-sp<IDevicesFactory> AudioHidlTest::devicesFactory;
-
-TEST_F(AudioHidlTest, GetAudioDevicesFactoryService) {
-    doc::test("Test the getService (called in SetUp)");
-}
-
-TEST_F(AudioHidlTest, OpenDeviceInvalidParameter) {
-    doc::test("Test passing an invalid parameter to openDevice");
-    Result result;
-    sp<IDevice> device;
-    ASSERT_OK(devicesFactory->openDevice("Non existing device", returnIn(result, device)));
-    ASSERT_EQ(Result::INVALID_ARGUMENTS, result);
-    ASSERT_TRUE(device == nullptr);
-}
-
-TEST_F(AudioHidlTest, OpenPrimaryDeviceUsingGetDevice) {
-    doc::test("Calling openDevice(\"primary\") should return the primary device.");
-    {
-        Result result;
-        sp<IDevice> baseDevice;
-        ASSERT_OK(devicesFactory->openDevice("primary", returnIn(result, baseDevice)));
-        ASSERT_OK(result);
-        ASSERT_TRUE(baseDevice != nullptr);
-
-        Return<sp<IPrimaryDevice>> primaryDevice = IPrimaryDevice::castFrom(baseDevice);
-        ASSERT_TRUE(primaryDevice.isOk());
-        ASSERT_TRUE(sp<IPrimaryDevice>(primaryDevice) != nullptr);
-    }  // Destroy local IDevice proxy
-    // FIXME: there is no way to know when the remote IDevice is being destroyed
-    //        Binder does not support testing if an object is alive, thus
-    //        wait for 100ms to let the binder destruction propagates and
-    //        the remote device has the time to be destroyed.
-    //        flushCommand makes sure all local command are sent, thus should reduce
-    //        the latency between local and remote destruction.
-    IPCThreadState::self()->flushCommands();
-    usleep(100);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// openDevice primary ///////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-// Test the primary device
-class AudioPrimaryHidlTest : public AudioHidlTest {
-   public:
-    /** Primary HAL test are NOT thread safe. */
-    void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(AudioHidlTest::SetUp());  // setup base
-
-        if (device == nullptr) {
-            Result result;
-            ASSERT_OK(devicesFactory->openPrimaryDevice(returnIn(result, device)));
-            ASSERT_OK(result);
-            ASSERT_TRUE(device != nullptr);
-
-            environment->registerTearDown([] { device.clear(); });
-        }
-    }
-
-   protected:
-    // Cache the device opening to speed up each test by ~0.5s
-    static sp<IPrimaryDevice> device;
-};
-sp<IPrimaryDevice> AudioPrimaryHidlTest::device;
-
-TEST_F(AudioPrimaryHidlTest, OpenPrimaryDevice) {
-    doc::test("Test the openDevice (called in SetUp)");
-}
-
-TEST_F(AudioPrimaryHidlTest, Init) {
-    doc::test("Test that the audio primary hal initialized correctly");
-    ASSERT_OK(device->initCheck());
-}
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////// {set,get}{Master,Mic}{Mute,Volume} /////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-template <class Property>
-class AccessorPrimaryHidlTest : public AudioPrimaryHidlTest {
-   protected:
-    enum Optionality { REQUIRED, OPTIONAL };
-    struct Initial {  // Initial property value
-        Initial(Property value, Optionality check = REQUIRED) : value(value), check(check) {}
-        Property value;
-        Optionality check;  // If this initial value should be checked
-    };
-    /** Test a property getter and setter.
-     *  The getter and/or the setter may return NOT_SUPPORTED if optionality == OPTIONAL.
-     */
-    template <Optionality optionality = REQUIRED, class Getter, class Setter>
-    void testAccessors(const string& propertyName, const Initial expectedInitial,
-                       list<Property> valuesToTest, Setter setter, Getter getter,
-                       const vector<Property>& invalidValues = {}) {
-        const auto expectedResults = {Result::OK,
-                                      optionality == OPTIONAL ? Result::NOT_SUPPORTED : Result::OK};
-
-        Property initialValue = expectedInitial.value;
-        ASSERT_OK((device.get()->*getter)(returnIn(res, initialValue)));
-        ASSERT_RESULT(expectedResults, res);
-        if (res == Result::OK && expectedInitial.check == REQUIRED) {
-            EXPECT_EQ(expectedInitial.value, initialValue);
-        }
-
-        valuesToTest.push_front(expectedInitial.value);
-        valuesToTest.push_back(initialValue);
-        for (Property setValue : valuesToTest) {
-            SCOPED_TRACE("Test " + propertyName + " getter and setter for " +
-                         testing::PrintToString(setValue));
-            auto ret = (device.get()->*setter)(setValue);
-            ASSERT_RESULT(expectedResults, ret);
-            if (ret == Result::NOT_SUPPORTED) {
-                doc::partialTest(propertyName + " setter is not supported");
-                break;
-            }
-            Property getValue;
-            // Make sure the getter returns the same value just set
-            ASSERT_OK((device.get()->*getter)(returnIn(res, getValue)));
-            ASSERT_RESULT(expectedResults, res);
-            if (res == Result::NOT_SUPPORTED) {
-                doc::partialTest(propertyName + " getter is not supported");
-                continue;
-            }
-            EXPECT_EQ(setValue, getValue);
-        }
-
-        for (Property invalidValue : invalidValues) {
-            SCOPED_TRACE("Try to set " + propertyName + " with the invalid value " +
-                         testing::PrintToString(invalidValue));
-            EXPECT_RESULT(invalidArgsOrNotSupported, (device.get()->*setter)(invalidValue));
-        }
-
-        // Restore initial value
-        EXPECT_RESULT(expectedResults, (device.get()->*setter)(initialValue));
-    }
-};
-
-using BoolAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<bool>;
-
-TEST_F(BoolAccessorPrimaryHidlTest, MicMuteTest) {
-    doc::test("Check that the mic can be muted and unmuted");
-    testAccessors("mic mute", Initial{false}, {true}, &IDevice::setMicMute, &IDevice::getMicMute);
-    // TODO: check that the mic is really muted (all sample are 0)
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, MasterMuteTest) {
-    doc::test("If master mute is supported, try to mute and unmute the master output");
-    testAccessors<OPTIONAL>("master mute", Initial{false}, {true}, &IDevice::setMasterMute,
-                            &IDevice::getMasterMute);
-    // TODO: check that the master volume is really muted
-}
-
-using FloatAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<float>;
-TEST_F(FloatAccessorPrimaryHidlTest, MasterVolumeTest) {
-    doc::test("Test the master volume if supported");
-    testAccessors<OPTIONAL>(
-        "master volume", Initial{1}, {0, 0.5}, &IDevice::setMasterVolume, &IDevice::getMasterVolume,
-        {-0.1, 1.1, NAN, INFINITY, -INFINITY, 1 + std::numeric_limits<float>::epsilon()});
-    // TODO: check that the master volume is really changed
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////////// AudioPatches ////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-class AudioPatchPrimaryHidlTest : public AudioPrimaryHidlTest {
-   protected:
-    bool areAudioPatchesSupported() {
-        auto result = device->supportsAudioPatches();
-        EXPECT_IS_OK(result);
-        return result;
-    }
-};
-
-TEST_F(AudioPatchPrimaryHidlTest, AudioPatches) {
-    doc::test("Test if audio patches are supported");
-    if (!areAudioPatchesSupported()) {
-        doc::partialTest("Audio patches are not supported");
-        return;
-    }
-    // TODO: test audio patches
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////// Required and recommended audio format support ///////////////
-// From:
-// https://source.android.com/compatibility/android-cdd.html#5_4_audio_recording
-// From:
-// https://source.android.com/compatibility/android-cdd.html#5_5_audio_playback
-/////////// TODO: move to the beginning of the file for easier update ////////
-//////////////////////////////////////////////////////////////////////////////
-
-class AudioConfigPrimaryTest : public AudioPatchPrimaryHidlTest {
-   public:
-    // Cache result ?
-    static const vector<AudioConfig> getRequiredSupportPlaybackAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::OUT_STEREO, AudioChannelMask::OUT_MONO},
-                                  {8000, 11025, 16000, 22050, 32000, 44100},
-                                  {AudioFormat::PCM_16_BIT});
-    }
-
-    static const vector<AudioConfig> getRecommendedSupportPlaybackAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::OUT_STEREO, AudioChannelMask::OUT_MONO},
-                                  {24000, 48000}, {AudioFormat::PCM_16_BIT});
-    }
-
-    static const vector<AudioConfig> getSupportedPlaybackAudioConfig() {
-        // TODO: retrieve audio config supported by the platform
-        // as declared in the policy configuration
-        return {};
-    }
-
-    static const vector<AudioConfig> getRequiredSupportCaptureAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::IN_MONO}, {8000, 11025, 16000, 44100},
-                                  {AudioFormat::PCM_16_BIT});
-    }
-    static const vector<AudioConfig> getRecommendedSupportCaptureAudioConfig() {
-        return combineAudioConfig({AudioChannelMask::IN_STEREO}, {22050, 48000},
-                                  {AudioFormat::PCM_16_BIT});
-    }
-    static const vector<AudioConfig> getSupportedCaptureAudioConfig() {
-        // TODO: retrieve audio config supported by the platform
-        // as declared in the policy configuration
-        return {};
-    }
-
-   private:
-    static const vector<AudioConfig> combineAudioConfig(vector<AudioChannelMask> channelMasks,
-                                                        vector<uint32_t> sampleRates,
-                                                        vector<AudioFormat> formats) {
-        vector<AudioConfig> configs;
-        for (auto channelMask : channelMasks) {
-            for (auto sampleRate : sampleRates) {
-                for (auto format : formats) {
-                    AudioConfig config{};
-                    // leave offloadInfo to 0
-                    config.channelMask = mkBitfield(channelMask);
-                    config.sampleRateHz = sampleRate;
-                    config.format = format;
-                    // FIXME: leave frameCount to 0 ?
-                    configs.push_back(config);
-                }
-            }
-        }
-        return configs;
-    }
-};
-
-/** Generate a test name based on an audio config.
- *
- * As the only parameter changing are channel mask and sample rate,
- * only print those ones in the test name.
- */
-static string generateTestName(const testing::TestParamInfo<AudioConfig>& info) {
-    const AudioConfig& config = info.param;
-    return to_string(info.index) + "__" + to_string(config.sampleRateHz) + "_" +
-           // "MONO" is more clear than "FRONT_LEFT"
-           ((config.channelMask == mkBitfield(AudioChannelMask::OUT_MONO) ||
-             config.channelMask == mkBitfield(AudioChannelMask::IN_MONO))
-                ? "MONO"
-                : ::testing::PrintToString(config.channelMask));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////////////// getInputBufferSize /////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-// FIXME: execute input test only if platform declares
-// android.hardware.microphone
-//        how to get this value ? is it a property ???
-
-class AudioCaptureConfigPrimaryTest : public AudioConfigPrimaryTest,
-                                      public ::testing::WithParamInterface<AudioConfig> {
-   protected:
-    void inputBufferSizeTest(const AudioConfig& audioConfig, bool supportRequired) {
-        uint64_t bufferSize;
-        ASSERT_OK(device->getInputBufferSize(audioConfig, returnIn(res, bufferSize)));
-
-        switch (res) {
-            case Result::INVALID_ARGUMENTS:
-                EXPECT_FALSE(supportRequired);
-                break;
-            case Result::OK:
-                // Check that the buffer is of a sane size
-                // For now only that it is > 0
-                EXPECT_GT(bufferSize, uint64_t(0));
-                break;
-            default:
-                FAIL() << "Invalid return status: " << ::testing::PrintToString(res);
-        }
-    }
-};
-
-// Test that the required capture config and those declared in the policy are
-// indeed supported
-class RequiredInputBufferSizeTest : public AudioCaptureConfigPrimaryTest {};
-TEST_P(RequiredInputBufferSizeTest, RequiredInputBufferSizeTest) {
-    doc::test(
-        "Input buffer size must be retrievable for a format with required "
-        "support.");
-    inputBufferSizeTest(GetParam(), true);
-}
-INSTANTIATE_TEST_CASE_P(
-    RequiredInputBufferSize, RequiredInputBufferSizeTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportCaptureAudioConfig()),
-    &generateTestName);
-INSTANTIATE_TEST_CASE_P(
-    SupportedInputBufferSize, RequiredInputBufferSizeTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedCaptureAudioConfig()),
-    &generateTestName);
-
-// Test that the recommended capture config are supported or lead to a
-// INVALID_ARGUMENTS return
-class OptionalInputBufferSizeTest : public AudioCaptureConfigPrimaryTest {};
-TEST_P(OptionalInputBufferSizeTest, OptionalInputBufferSizeTest) {
-    doc::test(
-        "Input buffer size should be retrievable for a format with recommended "
-        "support.");
-    inputBufferSizeTest(GetParam(), false);
-}
-INSTANTIATE_TEST_CASE_P(
-    RecommendedCaptureAudioConfigSupport, OptionalInputBufferSizeTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportCaptureAudioConfig()),
-    &generateTestName);
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// setScreenState ///////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, setScreenState) {
-    doc::test("Check that the hal can receive the screen state");
-    for (bool turnedOn : {false, true, true, false, false}) {
-        ASSERT_RESULT(okOrNotSupported, device->setScreenState(turnedOn));
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////// {get,set}Parameters /////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, getParameters) {
-    doc::test("Check that the hal can set and get parameters");
-    hidl_vec<ParameterValue> context;
-    hidl_vec<hidl_string> keys;
-    hidl_vec<ParameterValue> values;
-    ASSERT_OK(device->getParameters(context, keys, returnIn(res, values)));
-    ASSERT_OK(device->setParameters(context, values));
-    values.resize(0);
-    ASSERT_OK(device->setParameters(context, values));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////// get(Active)Microphones ///////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, GetMicrophonesTest) {
-    doc::test("Make sure getMicrophones always succeeds");
-    hidl_vec<MicrophoneInfo> microphones;
-    ASSERT_OK(device->getMicrophones(returnIn(res, microphones)));
-    ASSERT_OK(res);
-    if (microphones.size() > 0) {
-        // When there is microphone on the phone, try to open an input stream
-        // and query for the active microphones.
-        doc::test(
-            "Make sure getMicrophones always succeeds"
-            "and getActiveMicrophones always succeeds when recording from these microphones.");
-        AudioIoHandle ioHandle = (AudioIoHandle)AudioHandleConsts::AUDIO_IO_HANDLE_NONE;
-        AudioConfig config{};
-        config.channelMask = mkBitfield(AudioChannelMask::IN_MONO);
-        config.sampleRateHz = 8000;
-        config.format = AudioFormat::PCM_16_BIT;
-        auto flags = hidl_bitfield<AudioInputFlag>(AudioInputFlag::NONE);
-        const SinkMetadata initialMetadata = {{{AudioSource::MIC, 1 /* gain */}}};
-        EventFlag* efGroup;
-        for (auto microphone : microphones) {
-            if (microphone.deviceAddress.device != AudioDevice::IN_BUILTIN_MIC) {
-                continue;
-            }
-            sp<IStreamIn> stream;
-            AudioConfig suggestedConfig{};
-            ASSERT_OK(device->openInputStream(ioHandle, microphone.deviceAddress, config, flags,
-                                              initialMetadata,
-                                              returnIn(res, stream, suggestedConfig)));
-            if (res != Result::OK) {
-                ASSERT_TRUE(stream == nullptr);
-                AudioConfig suggestedConfigRetry{};
-                ASSERT_OK(device->openInputStream(ioHandle, microphone.deviceAddress,
-                                                  suggestedConfig, flags, initialMetadata,
-                                                  returnIn(res, stream, suggestedConfigRetry)));
-            }
-            ASSERT_OK(res);
-            hidl_vec<MicrophoneInfo> activeMicrophones;
-            Result readRes;
-            typedef MessageQueue<ReadParameters, kSynchronizedReadWrite> CommandMQ;
-            typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
-            std::unique_ptr<CommandMQ> commandMQ;
-            std::unique_ptr<DataMQ> dataMQ;
-            size_t frameSize = stream->getFrameSize();
-            size_t frameCount = stream->getBufferSize() / frameSize;
-            ASSERT_OK(stream->prepareForReading(
-                frameSize, frameCount, [&](auto r, auto& c, auto& d, auto&, auto&) {
-                    readRes = r;
-                    if (readRes == Result::OK) {
-                        commandMQ.reset(new CommandMQ(c));
-                        dataMQ.reset(new DataMQ(d));
-                        if (dataMQ->isValid() && dataMQ->getEventFlagWord()) {
-                            EventFlag::createEventFlag(dataMQ->getEventFlagWord(), &efGroup);
-                        }
-                    }
-                }));
-            ASSERT_OK(readRes);
-            ReadParameters params;
-            params.command = IStreamIn::ReadCommand::READ;
-            ASSERT_TRUE(commandMQ != nullptr);
-            ASSERT_TRUE(commandMQ->isValid());
-            ASSERT_TRUE(commandMQ->write(&params));
-            efGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
-            uint32_t efState = 0;
-            efGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
-            if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY)) {
-                ASSERT_OK(stream->getActiveMicrophones(returnIn(res, activeMicrophones)));
-                ASSERT_OK(res);
-                ASSERT_NE(0U, activeMicrophones.size());
-            }
-            stream->close();
-            if (efGroup) {
-                EventFlag::deleteEventFlag(&efGroup);
-            }
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////////// debugDebug //////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-template <class DebugDump>
-static void testDebugDump(DebugDump debugDump) {
-    // File descriptors to our pipe. fds[0] corresponds to the read end and
-    // fds[1] to the write end.
-    int fds[2];
-    ASSERT_EQ(0, pipe2(fds, O_NONBLOCK)) << errno;
-
-    // Make sure that the pipe is at least 1 MB in size. The test process runs
-    // in su domain, so it should be safe to make this call.
-    fcntl(fds[0], F_SETPIPE_SZ, 1 << 20);
-
-    // Wrap the temporary file file descriptor in a native handle
-    auto* nativeHandle = native_handle_create(1, 0);
-    ASSERT_NE(nullptr, nativeHandle);
-    nativeHandle->data[0] = fds[1];
-
-    // Wrap this native handle in a hidl handle
-    hidl_handle handle;
-    handle.setTo(nativeHandle, false /*take ownership*/);
-
-    ASSERT_OK(debugDump(handle));
-
-    // Check that at least one bit was written by the hal
-    // TODO: debugDump does not return a Result.
-    // This mean that the hal can not report that it not implementing the
-    // function.
-    char buff;
-    if (read(fds[0], &buff, 1) != 1) {
-        doc::note("debugDump does not seem implemented");
-    }
-    EXPECT_EQ(0, close(fds[0])) << errno;
-    EXPECT_EQ(0, close(fds[1])) << errno;
-}
-
-TEST_F(AudioPrimaryHidlTest, DebugDump) {
-    doc::test("Check that the hal can dump its state without error");
-    testDebugDump([](const auto& handle) { return device->debug(handle, {/* options */}); });
-}
-
-TEST_F(AudioPrimaryHidlTest, DebugDumpInvalidArguments) {
-    doc::test("Check that the hal dump doesn't crash on invalid arguments");
-    ASSERT_OK(device->debug(hidl_handle(), {/* options */}));
-}
-
-TEST_F(AudioPrimaryHidlTest, SetConnectedState) {
-    doc::test("Check that the HAL can be notified of device connection and deconnection");
-    using AD = AudioDevice;
-    for (auto deviceType : {AD::OUT_HDMI, AD::OUT_WIRED_HEADPHONE, AD::IN_USB_HEADSET}) {
-        SCOPED_TRACE("device=" + ::testing::PrintToString(deviceType));
-        for (bool state : {true, false}) {
-            SCOPED_TRACE("state=" + ::testing::PrintToString(state));
-            DeviceAddress address = {};
-            address.device = deviceType;
-            auto ret = device->setConnectedState(address, state);
-            ASSERT_TRUE(ret.isOk());
-            if (ret == Result::NOT_SUPPORTED) {
-                doc::partialTest("setConnectedState is not supported");
-                return;
-            }
-            ASSERT_OK(ret);
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////////// open{Output,Input}Stream //////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-template <class Stream>
-class OpenStreamTest : public AudioConfigPrimaryTest,
-                       public ::testing::WithParamInterface<AudioConfig> {
-   protected:
-    template <class Open>
-    void testOpen(Open openStream, const AudioConfig& config) {
-        // FIXME: Open a stream without an IOHandle
-        //        This is not required to be accepted by hal implementations
-        AudioIoHandle ioHandle = (AudioIoHandle)AudioHandleConsts::AUDIO_IO_HANDLE_NONE;
-        AudioConfig suggestedConfig{};
-        ASSERT_OK(openStream(ioHandle, config, returnIn(res, stream, suggestedConfig)));
-
-        // TODO: only allow failure for RecommendedPlaybackAudioConfig
-        switch (res) {
-            case Result::OK:
-                ASSERT_TRUE(stream != nullptr);
-                audioConfig = config;
-                break;
-            case Result::INVALID_ARGUMENTS:
-                ASSERT_TRUE(stream == nullptr);
-                AudioConfig suggestedConfigRetry;
-                // Could not open stream with config, try again with the
-                // suggested one
-                ASSERT_OK(openStream(ioHandle, suggestedConfig,
-                                     returnIn(res, stream, suggestedConfigRetry)));
-                // This time it must succeed
-                ASSERT_OK(res);
-                ASSERT_TRUE(stream != nullptr);
-                audioConfig = suggestedConfig;
-                break;
-            default:
-                FAIL() << "Invalid return status: " << ::testing::PrintToString(res);
-        }
-        open = true;
-    }
-
-    Return<Result> closeStream() {
-        open = false;
-        return stream->close();
-    }
-
-   private:
-    void TearDown() override {
-        if (open) {
-            ASSERT_OK(stream->close());
-        }
-    }
-
-   protected:
-    AudioConfig audioConfig;
-    DeviceAddress address = {};
-    sp<Stream> stream;
-    bool open = false;
-};
-
-////////////////////////////// openOutputStream //////////////////////////////
-
-class OutputStreamTest : public OpenStreamTest<IStreamOut> {
-    virtual void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
-        address.device = AudioDevice::OUT_DEFAULT;
-        const AudioConfig& config = GetParam();
-        // TODO: test all flag combination
-        auto flags = hidl_bitfield<AudioOutputFlag>(AudioOutputFlag::NONE);
-        testOpen(
-            [&](AudioIoHandle handle, AudioConfig config, auto cb) {
-                return device->openOutputStream(handle, address, config, flags, initialMetadata,
-                                                cb);
-            },
-            config);
-    }
-
-   protected:
-    const SourceMetadata initialMetadata = {
-        {{AudioUsage::MEDIA, AudioContentType::MUSIC, 1 /* gain */}}};
-};
-TEST_P(OutputStreamTest, OpenOutputStreamTest) {
-    doc::test(
-        "Check that output streams can be open with the required and "
-        "recommended config");
-    // Open done in SetUp
-}
-INSTANTIATE_TEST_CASE_P(
-    RequiredOutputStreamConfigSupport, OutputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportPlaybackAudioConfig()),
-    &generateTestName);
-INSTANTIATE_TEST_CASE_P(
-    SupportedOutputStreamConfig, OutputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedPlaybackAudioConfig()),
-    &generateTestName);
-
-INSTANTIATE_TEST_CASE_P(
-    RecommendedOutputStreamConfigSupport, OutputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportPlaybackAudioConfig()),
-    &generateTestName);
-
-////////////////////////////// openInputStream //////////////////////////////
-
-class InputStreamTest : public OpenStreamTest<IStreamIn> {
-    virtual void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
-        address.device = AudioDevice::IN_DEFAULT;
-        const AudioConfig& config = GetParam();
-        // TODO: test all supported flags and source
-        auto flags = hidl_bitfield<AudioInputFlag>(AudioInputFlag::NONE);
-        testOpen(
-            [&](AudioIoHandle handle, AudioConfig config, auto cb) {
-                return device->openInputStream(handle, address, config, flags, initialMetadata, cb);
-            },
-            config);
-    }
-
-   protected:
-    const SinkMetadata initialMetadata = {{{AudioSource::DEFAULT, 1 /* gain */}}};
-};
-
-TEST_P(InputStreamTest, OpenInputStreamTest) {
-    doc::test(
-        "Check that input streams can be open with the required and "
-        "recommended config");
-    // Open done in setup
-}
-INSTANTIATE_TEST_CASE_P(
-    RequiredInputStreamConfigSupport, InputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportCaptureAudioConfig()),
-    &generateTestName);
-INSTANTIATE_TEST_CASE_P(
-    SupportedInputStreamConfig, InputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedCaptureAudioConfig()),
-    &generateTestName);
-
-INSTANTIATE_TEST_CASE_P(
-    RecommendedInputStreamConfigSupport, InputStreamTest,
-    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportCaptureAudioConfig()),
-    &generateTestName);
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////////////// IStream getters ///////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-/** Unpack the provided result.
- * If the result is not OK, register a failure and return an undefined value. */
-template <class R>
-static R extract(Return<R> ret) {
-    if (!ret.isOk()) {
-        EXPECT_IS_OK(ret);
-        return R{};
-    }
-    return ret;
-}
-
-/* Could not find a way to write a test for two parametrized class fixure
- * thus use this macro do duplicate tests for Input and Output stream */
-#define TEST_IO_STREAM(test_name, documentation, code) \
-    TEST_P(InputStreamTest, test_name) {               \
-        doc::test(documentation);                      \
-        code;                                          \
-    }                                                  \
-    TEST_P(OutputStreamTest, test_name) {              \
-        doc::test(documentation);                      \
-        code;                                          \
-    }
-
-TEST_IO_STREAM(GetFrameCount, "Check that getting stream frame count does not crash the HAL.",
-               ASSERT_TRUE(stream->getFrameCount().isOk()))
-
-TEST_IO_STREAM(GetSampleRate, "Check that the stream sample rate == the one it was opened with",
-               ASSERT_EQ(audioConfig.sampleRateHz, extract(stream->getSampleRate())))
-
-TEST_IO_STREAM(GetChannelMask, "Check that the stream channel mask == the one it was opened with",
-               ASSERT_EQ(audioConfig.channelMask, extract(stream->getChannelMask())))
-
-TEST_IO_STREAM(GetFormat, "Check that the stream format == the one it was opened with",
-               ASSERT_EQ(audioConfig.format, extract(stream->getFormat())))
-
-// TODO: for now only check that the framesize is not incoherent
-TEST_IO_STREAM(GetFrameSize, "Check that the stream frame size == the one it was opened with",
-               ASSERT_GT(extract(stream->getFrameSize()), 0U))
-
-TEST_IO_STREAM(GetBufferSize, "Check that the stream buffer size== the one it was opened with",
-               ASSERT_GE(extract(stream->getBufferSize()), extract(stream->getFrameSize())));
-
-template <class Property, class CapablityGetter>
-static void testCapabilityGetter(const string& name, IStream* stream,
-                                 CapablityGetter capablityGetter,
-                                 Return<Property> (IStream::*getter)(),
-                                 Return<Result> (IStream::*setter)(Property),
-                                 bool currentMustBeSupported = true) {
-    hidl_vec<Property> capabilities;
-    auto ret = capablityGetter(stream, capabilities);
-    if (ret == Result::NOT_SUPPORTED) {
-        doc::partialTest(name + " is not supported");
-        return;
-    };
-    ASSERT_OK(ret);
-
-    if (currentMustBeSupported) {
-        ASSERT_NE(0U, capabilities.size()) << name << " must not return an empty list";
-        Property currentValue = extract((stream->*getter)());
-        EXPECT_TRUE(std::find(capabilities.begin(), capabilities.end(), currentValue) !=
-                    capabilities.end())
-            << "value returned by " << name << "() = " << testing::PrintToString(currentValue)
-            << " is not in the list of the supported ones " << toString(capabilities);
-    }
-
-    // Check that all declared supported values are indeed supported
-    for (auto capability : capabilities) {
-        auto ret = (stream->*setter)(capability);
-        ASSERT_TRUE(ret.isOk());
-        if (ret == Result::NOT_SUPPORTED) {
-            doc::partialTest("Setter is not supported");
-            return;
-        }
-        ASSERT_OK(ret);
-        ASSERT_EQ(capability, extract((stream->*getter)()));
-    }
-}
-
-Result getSupportedSampleRates(IStream* stream, hidl_vec<uint32_t>& rates) {
-    Result res;
-    EXPECT_OK(stream->getSupportedSampleRates(extract(stream->getFormat()), returnIn(res, rates)));
-    return res;
-}
-
-Result getSupportedChannelMasks(IStream* stream,
-                                hidl_vec<hidl_bitfield<AudioChannelMask>>& channels) {
-    Result res;
-    EXPECT_OK(
-        stream->getSupportedChannelMasks(extract(stream->getFormat()), returnIn(res, channels)));
-    return res;
-}
-
-Result getSupportedFormats(IStream* stream, hidl_vec<AudioFormat>& capabilities) {
-    EXPECT_OK(stream->getSupportedFormats(returnIn(capabilities)));
-    // TODO: this should be an optional function
-    return Result::OK;
-}
-
-TEST_IO_STREAM(SupportedSampleRate, "Check that the stream sample rate is declared as supported",
-               testCapabilityGetter("getSupportedSampleRate", stream.get(),
-                                    &getSupportedSampleRates, &IStream::getSampleRate,
-                                    &IStream::setSampleRate,
-                                    // getSupportedSampleRate returns the native sampling rates,
-                                    // (the sampling rates that can be played without resampling)
-                                    // but other sampling rates can be supported by the HAL.
-                                    false))
-
-TEST_IO_STREAM(SupportedChannelMask, "Check that the stream channel mask is declared as supported",
-               testCapabilityGetter("getSupportedChannelMask", stream.get(),
-                                    &getSupportedChannelMasks, &IStream::getChannelMask,
-                                    &IStream::setChannelMask))
-
-TEST_IO_STREAM(SupportedFormat, "Check that the stream format is declared as supported",
-               testCapabilityGetter("getSupportedFormat", stream.get(), &getSupportedFormats,
-                                    &IStream::getFormat, &IStream::setFormat))
-
-static void testGetDevices(IStream* stream, AudioDevice expectedDevice) {
-    hidl_vec<DeviceAddress> devices;
-    Result res;
-    ASSERT_OK(stream->getDevices(returnIn(res, devices)));
-    if (res == Result::NOT_SUPPORTED) {
-        return doc::partialTest("GetDevices is not supported");
-    }
-    // The stream was constructed with one device, thus getDevices must only return one
-    ASSERT_EQ(1U, devices.size());
-    AudioDevice device = devices[0].device;
-    ASSERT_TRUE(device == expectedDevice)
-        << "Expected: " << ::testing::PrintToString(expectedDevice)
-        << "\n  Actual: " << ::testing::PrintToString(device);
-}
-
-TEST_IO_STREAM(GetDevices, "Check that the stream device == the one it was opened with",
-               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
-                                          : testGetDevices(stream.get(), address.device))
-
-static void testSetDevices(IStream* stream, const DeviceAddress& address) {
-    DeviceAddress otherAddress = address;
-    otherAddress.device = (address.device & AudioDevice::BIT_IN) == 0 ? AudioDevice::OUT_SPEAKER
-                                                                      : AudioDevice::IN_BUILTIN_MIC;
-    EXPECT_OK(stream->setDevices({otherAddress}));
-
-    ASSERT_OK(stream->setDevices({address}));  // Go back to the original value
-}
-
-TEST_IO_STREAM(SetDevices, "Check that the stream can be rerouted to SPEAKER or BUILTIN_MIC",
-               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
-                                          : testSetDevices(stream.get(), address))
-
-static void testGetAudioProperties(IStream* stream, AudioConfig expectedConfig) {
-    uint32_t sampleRateHz;
-    hidl_bitfield<AudioChannelMask> mask;
-    AudioFormat format;
-
-    stream->getAudioProperties(returnIn(sampleRateHz, mask, format));
-
-    // FIXME: the qcom hal it does not currently negotiate the sampleRate &
-    // channel mask
-    EXPECT_EQ(expectedConfig.sampleRateHz, sampleRateHz);
-    EXPECT_EQ(expectedConfig.channelMask, mask);
-    EXPECT_EQ(expectedConfig.format, format);
-}
-
-TEST_IO_STREAM(GetAudioProperties,
-               "Check that the stream audio properties == the ones it was opened with",
-               testGetAudioProperties(stream.get(), audioConfig))
-
-TEST_IO_STREAM(SetHwAvSync, "Try to set hardware sync to an invalid value",
-               ASSERT_RESULT(okOrNotSupportedOrInvalidArgs, stream->setHwAvSync(666)))
-
-static void checkGetHwAVSync(IDevice* device) {
-    Result res;
-    AudioHwSync sync;
-    ASSERT_OK(device->getHwAvSync(returnIn(res, sync)));
-    if (res == Result::NOT_SUPPORTED) {
-        return doc::partialTest("getHwAvSync is not supported");
-    }
-    ASSERT_OK(res);
-}
-TEST_IO_STREAM(GetHwAvSync, "Get hardware sync can not fail", checkGetHwAVSync(device.get()));
-
-static void checkGetNoParameter(IStream* stream, hidl_vec<hidl_string> keys,
-                                initializer_list<Result> expectedResults) {
-    hidl_vec<ParameterValue> context;
-    hidl_vec<ParameterValue> parameters;
-    Result res;
-    ASSERT_OK(stream->getParameters(context, keys, returnIn(res, parameters)));
-    ASSERT_RESULT(expectedResults, res);
-    if (res == Result::OK) {
-        for (auto& parameter : parameters) {
-            ASSERT_EQ(0U, parameter.value.size()) << toString(parameter);
-        }
-    }
-}
-
-/* Get/Set parameter is intended to be an opaque channel between vendors app and
- * their HALs.
- * Thus can not be meaningfully tested.
- */
-TEST_IO_STREAM(getEmptySetParameter, "Retrieve the values of an empty set",
-               checkGetNoParameter(stream.get(), {} /* keys */, {Result::OK}))
-
-TEST_IO_STREAM(getNonExistingParameter, "Retrieve the values of an non existing parameter",
-               checkGetNoParameter(stream.get(), {"Non existing key"} /* keys */,
-                                   {Result::NOT_SUPPORTED}))
-
-TEST_IO_STREAM(setEmptySetParameter, "Set the values of an empty set of parameters",
-               ASSERT_RESULT(Result::OK, stream->setParameters({}, {})))
-
-TEST_IO_STREAM(setNonExistingParameter, "Set the values of an non existing parameter",
-               // Unfortunately, the set_parameter legacy interface did not return any
-               // error code when a key is not supported.
-               // To allow implementation to just wrapped the legacy one, consider OK as a
-               // valid result for setting a non existing parameter.
-               ASSERT_RESULT(okOrNotSupportedOrInvalidArgs,
-                             stream->setParameters({}, {{"non existing key", "0"}})))
-
-TEST_IO_STREAM(DebugDump, "Check that a stream can dump its state without error",
-               testDebugDump([this](const auto& handle) { return stream->debug(handle, {}); }))
-
-TEST_IO_STREAM(DebugDumpInvalidArguments,
-               "Check that the stream dump doesn't crash on invalid arguments",
-               ASSERT_OK(stream->debug(hidl_handle(), {})))
-
-//////////////////////////////////////////////////////////////////////////////
-////////////////////////////// addRemoveEffect ///////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_IO_STREAM(AddNonExistingEffect, "Adding a non existing effect should fail",
-               ASSERT_RESULT(Result::INVALID_ARGUMENTS, stream->addEffect(666)))
-TEST_IO_STREAM(RemoveNonExistingEffect, "Removing a non existing effect should fail",
-               ASSERT_RESULT(Result::INVALID_ARGUMENTS, stream->removeEffect(666)))
-
-// TODO: positive tests
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// Control ////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_IO_STREAM(standby, "Make sure the stream can be put in stanby",
-               ASSERT_OK(stream->standby()))  // can not fail
-
-TEST_IO_STREAM(startNoMmap, "Starting a mmaped stream before mapping it should fail",
-               ASSERT_RESULT(invalidStateOrNotSupported, stream->start()))
-
-TEST_IO_STREAM(stopNoMmap, "Stopping a mmaped stream before mapping it should fail",
-               ASSERT_RESULT(invalidStateOrNotSupported, stream->stop()))
-
-TEST_IO_STREAM(getMmapPositionNoMmap, "Get a stream Mmap position before mapping it should fail",
-               ASSERT_RESULT(invalidStateOrNotSupported, stream->stop()))
-
-TEST_IO_STREAM(close, "Make sure a stream can be closed", ASSERT_OK(closeStream()))
-TEST_IO_STREAM(closeTwice, "Make sure a stream can not be closed twice", ASSERT_OK(closeStream());
-               ASSERT_RESULT(Result::INVALID_STATE, closeStream()))
-
-static void testCreateTooBigMmapBuffer(IStream* stream) {
-    MmapBufferInfo info;
-    Result res;
-    // Assume that int max is a value too big to be allocated
-    // This is true currently with a 32bit media server, but might not when it
-    // will run in 64 bit
-    auto minSizeFrames = std::numeric_limits<int32_t>::max();
-    ASSERT_OK(stream->createMmapBuffer(minSizeFrames, returnIn(res, info)));
-    ASSERT_RESULT(invalidArgsOrNotSupported, res);
-}
-
-TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer too big should fail",
-               testCreateTooBigMmapBuffer(stream.get()))
-
-static void testGetMmapPositionOfNonMmapedStream(IStream* stream) {
-    Result res;
-    MmapPosition position;
-    ASSERT_OK(stream->getMmapPosition(returnIn(res, position)));
-    ASSERT_RESULT(invalidArgsOrNotSupported, res);
-}
-
-TEST_IO_STREAM(GetMmapPositionOfNonMmapedStream,
-               "Retrieving the mmap position of a non mmaped stream should fail",
-               testGetMmapPositionOfNonMmapedStream(stream.get()))
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////////////////// StreamIn ///////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_P(InputStreamTest, GetAudioSource) {
-    doc::test("Retrieving the audio source of an input stream should always succeed");
-    AudioSource source;
-    ASSERT_OK(stream->getAudioSource(returnIn(res, source)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getAudioSource is not supported");
-        return;
-    }
-    ASSERT_OK(res);
-    ASSERT_EQ(AudioSource::DEFAULT, source);
-}
-
-static void testUnitaryGain(std::function<Return<Result>(float)> setGain) {
-    for (float value : (float[]){-INFINITY, -1.0, 1.0 + std::numeric_limits<float>::epsilon(), 2.0,
-                                 INFINITY, NAN}) {
-        EXPECT_RESULT(Result::INVALID_ARGUMENTS, setGain(value)) << "value=" << value;
-    }
-    // Do not consider -0.0 as an invalid value as it is == with 0.0
-    for (float value : {-0.0, 0.0, 0.01, 0.5, 0.09, 1.0 /* Restore volume*/}) {
-        EXPECT_OK(setGain(value)) << "value=" << value;
-    }
-}
-
-static void testOptionalUnitaryGain(std::function<Return<Result>(float)> setGain,
-                                    string debugName) {
-    auto result = setGain(1);
-    ASSERT_IS_OK(result);
-    if (result == Result::NOT_SUPPORTED) {
-        doc::partialTest(debugName + " is not supported");
-        return;
-    }
-    testUnitaryGain(setGain);
-}
-
-TEST_P(InputStreamTest, SetGain) {
-    doc::test("The gain of an input stream should only be set between [0,1]");
-    testOptionalUnitaryGain([this](float volume) { return stream->setGain(volume); },
-                            "InputStream::setGain");
-}
-
-static void testPrepareForReading(IStreamIn* stream, uint32_t frameSize, uint32_t framesCount) {
-    Result res;
-    // Ignore output parameters as the call should fail
-    ASSERT_OK(stream->prepareForReading(frameSize, framesCount,
-                                        [&res](auto r, auto&, auto&, auto&, auto&) { res = r; }));
-    EXPECT_RESULT(Result::INVALID_ARGUMENTS, res);
-}
-
-TEST_P(InputStreamTest, PrepareForReadingWithZeroBuffer) {
-    doc::test("Preparing a stream for reading with a 0 sized buffer should fail");
-    testPrepareForReading(stream.get(), 0, 0);
-}
-
-TEST_P(InputStreamTest, PrepareForReadingWithHugeBuffer) {
-    doc::test("Preparing a stream for reading with a 2^32 sized buffer should fail");
-    testPrepareForReading(stream.get(), 1, std::numeric_limits<uint32_t>::max());
-}
-
-TEST_P(InputStreamTest, PrepareForReadingCheckOverflow) {
-    doc::test(
-        "Preparing a stream for reading with a overflowing sized buffer should "
-        "fail");
-    auto uintMax = std::numeric_limits<uint32_t>::max();
-    testPrepareForReading(stream.get(), uintMax, uintMax);
-}
-
-TEST_P(InputStreamTest, GetInputFramesLost) {
-    doc::test("The number of frames lost on a never started stream should be 0");
-    auto ret = stream->getInputFramesLost();
-    ASSERT_IS_OK(ret);
-    uint32_t framesLost{ret};
-    ASSERT_EQ(0U, framesLost);
-}
-
-TEST_P(InputStreamTest, getCapturePosition) {
-    doc::test(
-        "The capture position of a non prepared stream should not be "
-        "retrievable or 0");
-    uint64_t frames;
-    uint64_t time;
-    ASSERT_OK(stream->getCapturePosition(returnIn(res, frames, time)));
-    ASSERT_RESULT(okOrInvalidStateOrNotSupported, res);
-    if (res == Result::OK) {
-        ASSERT_EQ(0U, frames);
-        ASSERT_LE(0U, time);
-    }
-}
-
-TEST_P(InputStreamTest, updateSinkMetadata) {
-    doc::test("The HAL should not crash on metadata change");
-
-    hidl_enum_range<AudioSource> range;
-    // Test all possible track configuration
-    for (AudioSource source : range) {
-        for (float volume : {0.0, 0.5, 1.0}) {
-            const SinkMetadata metadata = {{{source, volume}}};
-            ASSERT_OK(stream->updateSinkMetadata(metadata))
-                << "source=" << toString(source) << ", volume=" << volume;
-        }
-    }
-
-    // Do not test concurrent capture as this is not officially supported
-
-    // Set no metadata as if all stream track had stopped
-    ASSERT_OK(stream->updateSinkMetadata({}));
-
-    // Restore initial
-    ASSERT_OK(stream->updateSinkMetadata(initialMetadata));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-///////////////////////////////// StreamOut //////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_P(OutputStreamTest, getLatency) {
-    doc::test("Make sure latency is over 0");
-    auto result = stream->getLatency();
-    ASSERT_IS_OK(result);
-    ASSERT_GT(result, 0U);
-}
-
-TEST_P(OutputStreamTest, setVolume) {
-    doc::test("Try to set the output volume");
-    testOptionalUnitaryGain([this](float volume) { return stream->setVolume(volume, volume); },
-                            "setVolume");
-}
-
-static void testPrepareForWriting(IStreamOut* stream, uint32_t frameSize, uint32_t framesCount) {
-    Result res;
-    // Ignore output parameters as the call should fail
-    ASSERT_OK(stream->prepareForWriting(frameSize, framesCount,
-                                        [&res](auto r, auto&, auto&, auto&, auto&) { res = r; }));
-    EXPECT_RESULT(Result::INVALID_ARGUMENTS, res);
-}
-
-TEST_P(OutputStreamTest, PrepareForWriteWithZeroBuffer) {
-    doc::test("Preparing a stream for writing with a 0 sized buffer should fail");
-    testPrepareForWriting(stream.get(), 0, 0);
-}
-
-TEST_P(OutputStreamTest, PrepareForWriteWithHugeBuffer) {
-    doc::test("Preparing a stream for writing with a 2^32 sized buffer should fail");
-    testPrepareForWriting(stream.get(), 1, std::numeric_limits<uint32_t>::max());
-}
-
-TEST_P(OutputStreamTest, PrepareForWritingCheckOverflow) {
-    doc::test(
-        "Preparing a stream for writing with a overflowing sized buffer should "
-        "fail");
-    auto uintMax = std::numeric_limits<uint32_t>::max();
-    testPrepareForWriting(stream.get(), uintMax, uintMax);
-}
-
-struct Capability {
-    Capability(IStreamOut* stream) {
-        EXPECT_OK(stream->supportsPauseAndResume(returnIn(pause, resume)));
-        auto ret = stream->supportsDrain();
-        EXPECT_IS_OK(ret);
-        if (ret.isOk()) {
-            drain = ret;
-        }
-    }
-    bool pause = false;
-    bool resume = false;
-    bool drain = false;
-};
-
-TEST_P(OutputStreamTest, SupportsPauseAndResumeAndDrain) {
-    doc::test("Implementation must expose pause, resume and drain capabilities");
-    Capability(stream.get());
-}
-
-template <class Value>
-static void checkInvalidStateOr0(Result res, Value value) {
-    switch (res) {
-        case Result::INVALID_STATE:
-            break;
-        case Result::OK:
-            ASSERT_EQ(0U, value);
-            break;
-        default:
-            FAIL() << "Unexpected result " << toString(res);
-    }
-}
-
-TEST_P(OutputStreamTest, GetRenderPosition) {
-    doc::test("A new stream render position should be 0 or INVALID_STATE");
-    uint32_t dspFrames;
-    ASSERT_OK(stream->getRenderPosition(returnIn(res, dspFrames)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getRenderPosition is not supported");
-        return;
-    }
-    checkInvalidStateOr0(res, dspFrames);
-}
-
-TEST_P(OutputStreamTest, GetNextWriteTimestamp) {
-    doc::test("A new stream next write timestamp should be 0 or INVALID_STATE");
-    uint64_t timestampUs;
-    ASSERT_OK(stream->getNextWriteTimestamp(returnIn(res, timestampUs)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getNextWriteTimestamp is not supported");
-        return;
-    }
-    checkInvalidStateOr0(res, timestampUs);
-}
-
-/** Stub implementation of out stream callback. */
-class MockOutCallbacks : public IStreamOutCallback {
-    Return<void> onWriteReady() override { return {}; }
-    Return<void> onDrainReady() override { return {}; }
-    Return<void> onError() override { return {}; }
-};
-
-static bool isAsyncModeSupported(IStreamOut* stream) {
-    auto res = stream->setCallback(new MockOutCallbacks);
-    stream->clearCallback();  // try to restore the no callback state, ignore
-                              // any error
-    EXPECT_RESULT(okOrNotSupported, res);
-    return res.isOk() ? res == Result::OK : false;
-}
-
-TEST_P(OutputStreamTest, SetCallback) {
-    doc::test(
-        "If supported, registering callback for async operation should never "
-        "fail");
-    if (!isAsyncModeSupported(stream.get())) {
-        doc::partialTest("The stream does not support async operations");
-        return;
-    }
-    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
-    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
-}
-
-TEST_P(OutputStreamTest, clearCallback) {
-    doc::test(
-        "If supported, clearing a callback to go back to sync operation should "
-        "not fail");
-    if (!isAsyncModeSupported(stream.get())) {
-        doc::partialTest("The stream does not support async operations");
-        return;
-    }
-    // TODO: Clarify if clearing a non existing callback should fail
-    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
-    ASSERT_OK(stream->clearCallback());
-}
-
-TEST_P(OutputStreamTest, Resume) {
-    doc::test(
-        "If supported, a stream should fail to resume if not previously "
-        "paused");
-    if (!Capability(stream.get()).resume) {
-        doc::partialTest("The output stream does not support resume");
-        return;
-    }
-    ASSERT_RESULT(Result::INVALID_STATE, stream->resume());
-}
-
-TEST_P(OutputStreamTest, Pause) {
-    doc::test(
-        "If supported, a stream should fail to pause if not previously "
-        "started");
-    if (!Capability(stream.get()).pause) {
-        doc::partialTest("The output stream does not support pause");
-        return;
-    }
-    ASSERT_RESULT(Result::INVALID_STATE, stream->pause());
-}
-
-static void testDrain(IStreamOut* stream, AudioDrain type) {
-    if (!Capability(stream).drain) {
-        doc::partialTest("The output stream does not support drain");
-        return;
-    }
-    ASSERT_RESULT(Result::OK, stream->drain(type));
-}
-
-TEST_P(OutputStreamTest, DrainAll) {
-    doc::test("If supported, a stream should always succeed to drain");
-    testDrain(stream.get(), AudioDrain::ALL);
-}
-
-TEST_P(OutputStreamTest, DrainEarlyNotify) {
-    doc::test("If supported, a stream should always succeed to drain");
-    testDrain(stream.get(), AudioDrain::EARLY_NOTIFY);
-}
-
-TEST_P(OutputStreamTest, FlushStop) {
-    doc::test("If supported, a stream should always succeed to flush");
-    auto ret = stream->flush();
-    ASSERT_IS_OK(ret);
-    if (ret == Result::NOT_SUPPORTED) {
-        doc::partialTest("Flush is not supported");
-        return;
-    }
-    ASSERT_OK(ret);
-}
-
-TEST_P(OutputStreamTest, GetPresentationPositionStop) {
-    doc::test(
-        "If supported, a stream should always succeed to retrieve the "
-        "presentation position");
-    uint64_t frames;
-    TimeSpec mesureTS;
-    ASSERT_OK(stream->getPresentationPosition(returnIn(res, frames, mesureTS)));
-    if (res == Result::NOT_SUPPORTED) {
-        doc::partialTest("getpresentationPosition is not supported");
-        return;
-    }
-    ASSERT_EQ(0U, frames);
-
-    if (mesureTS.tvNSec == 0 && mesureTS.tvSec == 0) {
-        // As the stream has never written a frame yet,
-        // the timestamp does not really have a meaning, allow to return 0
-        return;
-    }
-
-    // Make sure the return measure is not more than 1s old.
-    struct timespec currentTS;
-    ASSERT_EQ(0, clock_gettime(CLOCK_MONOTONIC, &currentTS)) << errno;
-
-    auto toMicroSec = [](uint64_t sec, auto nsec) { return sec * 1e+6 + nsec / 1e+3; };
-    auto currentTime = toMicroSec(currentTS.tv_sec, currentTS.tv_nsec);
-    auto mesureTime = toMicroSec(mesureTS.tvSec, mesureTS.tvNSec);
-    ASSERT_PRED2([](auto c, auto m) { return c - m < 1e+6; }, currentTime, mesureTime);
-}
-
-TEST_P(OutputStreamTest, SelectPresentation) {
-    doc::test("Verify that presentation selection does not crash");
-    ASSERT_RESULT(okOrNotSupported, stream->selectPresentation(0, 0));
-}
-
-TEST_P(OutputStreamTest, updateSourceMetadata) {
-    doc::test("The HAL should not crash on metadata change");
-
-    hidl_enum_range<AudioUsage> usageRange;
-    hidl_enum_range<AudioContentType> contentRange;
-    // Test all possible track configuration
-    for (auto usage : usageRange) {
-        for (auto content : contentRange) {
-            for (float volume : {0.0, 0.5, 1.0}) {
-                const SourceMetadata metadata = {{{usage, content, volume}}};
-                ASSERT_OK(stream->updateSourceMetadata(metadata))
-                    << "usage=" << toString(usage) << ", content=" << toString(content)
-                    << ", volume=" << volume;
-            }
-        }
-    }
-
-    // Set many track of different configuration
-    ASSERT_OK(stream->updateSourceMetadata(
-        {{{AudioUsage::MEDIA, AudioContentType::MUSIC, 0.1},
-          {AudioUsage::VOICE_COMMUNICATION, AudioContentType::SPEECH, 1.0},
-          {AudioUsage::ALARM, AudioContentType::SONIFICATION, 0.0},
-          {AudioUsage::ASSISTANT, AudioContentType::UNKNOWN, 0.3}}}));
-
-    // Set no metadata as if all stream track had stopped
-    ASSERT_OK(stream->updateSourceMetadata({}));
-
-    // Restore initial
-    ASSERT_OK(stream->updateSourceMetadata(initialMetadata));
-}
-
-//////////////////////////////////////////////////////////////////////////////
-/////////////////////////////// PrimaryDevice ////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-TEST_F(AudioPrimaryHidlTest, setVoiceVolume) {
-    doc::test("Make sure setVoiceVolume only succeed if volume is in [0,1]");
-    testUnitaryGain([](float volume) { return device->setVoiceVolume(volume); });
-}
-
-TEST_F(AudioPrimaryHidlTest, setMode) {
-    doc::test("Make sure setMode always succeeds if mode is valid and fails otherwise");
-    // Test Invalid values
-    for (int mode : {-2, -1, int(AudioMode::IN_COMMUNICATION) + 1}) {
-        ASSERT_RESULT(Result::INVALID_ARGUMENTS, device->setMode(AudioMode(mode)))
-            << "mode=" << mode;
-    }
-    // Test valid values
-    for (AudioMode mode : {AudioMode::IN_CALL, AudioMode::IN_COMMUNICATION, AudioMode::RINGTONE,
-                           AudioMode::NORMAL /* Make sure to leave the test in normal mode */}) {
-        ASSERT_OK(device->setMode(mode)) << "mode=" << toString(mode);
-    }
-}
-
-TEST_F(AudioPrimaryHidlTest, setBtHfpSampleRate) {
-    doc::test(
-        "Make sure setBtHfpSampleRate either succeeds or "
-        "indicates that it is not supported at all, or that the provided value is invalid");
-    for (auto samplingRate : {8000, 16000, 22050, 24000}) {
-        ASSERT_RESULT(okOrNotSupportedOrInvalidArgs, device->setBtHfpSampleRate(samplingRate));
-    }
-}
-
-TEST_F(AudioPrimaryHidlTest, setBtHfpVolume) {
-    doc::test(
-        "Make sure setBtHfpVolume is either not supported or "
-        "only succeed if volume is in [0,1]");
-    auto ret = device->setBtHfpVolume(0.0);
-    ASSERT_TRUE(ret.isOk());
-    if (ret == Result::NOT_SUPPORTED) {
-        doc::partialTest("setBtHfpVolume is not supported");
-        return;
-    }
-    testUnitaryGain([](float volume) { return device->setBtHfpVolume(volume); });
-}
-
-TEST_F(AudioPrimaryHidlTest, setBtScoHeadsetDebugName) {
-    doc::test(
-        "Make sure setBtScoHeadsetDebugName either succeeds or "
-        "indicates that it is not supported");
-    ASSERT_RESULT(okOrNotSupported, device->setBtScoHeadsetDebugName("test"));
-}
-
-TEST_F(AudioPrimaryHidlTest, updateRotation) {
-    doc::test("Check that the hal can receive the current rotation");
-    for (Rotation rotation : {Rotation::DEG_0, Rotation::DEG_90, Rotation::DEG_180,
-                              Rotation::DEG_270, Rotation::DEG_0}) {
-        ASSERT_RESULT(okOrNotSupported, device->updateRotation(rotation));
-    }
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, BtScoNrecEnabled) {
-    doc::test("Query and set the BT SCO NR&EC state");
-    testAccessors<OPTIONAL>("BtScoNrecEnabled", Initial{false, OPTIONAL}, {true},
-                            &IPrimaryDevice::setBtScoNrecEnabled,
-                            &IPrimaryDevice::getBtScoNrecEnabled);
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, setGetBtScoWidebandEnabled) {
-    doc::test("Query and set the SCO whideband state");
-    testAccessors<OPTIONAL>("BtScoWideband", Initial{false, OPTIONAL}, {true},
-                            &IPrimaryDevice::setBtScoWidebandEnabled,
-                            &IPrimaryDevice::getBtScoWidebandEnabled);
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, setGetBtHfpEnabled) {
-    doc::test("Query and set the BT HFP state");
-    testAccessors<OPTIONAL>("BtHfpEnabled", Initial{false, OPTIONAL}, {true},
-                            &IPrimaryDevice::setBtHfpEnabled, &IPrimaryDevice::getBtHfpEnabled);
-}
-
-using TtyModeAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<TtyMode>;
-TEST_F(TtyModeAccessorPrimaryHidlTest, setGetTtyMode) {
-    doc::test("Query and set the TTY mode state");
-    testAccessors<OPTIONAL>("TTY mode", Initial{TtyMode::OFF},
-                            {TtyMode::HCO, TtyMode::VCO, TtyMode::FULL},
-                            &IPrimaryDevice::setTtyMode, &IPrimaryDevice::getTtyMode);
-}
-
-TEST_F(BoolAccessorPrimaryHidlTest, setGetHac) {
-    doc::test("Query and set the HAC state");
-    testAccessors<OPTIONAL>("HAC", Initial{false}, {true}, &IPrimaryDevice::setHacEnabled,
-                            &IPrimaryDevice::getHacEnabled);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////// Clean caches on global tear down ////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-
-int main(int argc, char** argv) {
-    environment = new AudioHidlTestEnvironment;
-    ::testing::AddGlobalTestEnvironment(environment);
-    ::testing::InitGoogleTest(&argc, argv);
-    environment->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    return status;
-}
diff --git a/audio/core/4.0/vts/functional/ValidateAudioConfiguration.cpp b/audio/core/4.0/vts/functional/ValidateAudioConfiguration.cpp
deleted file mode 100644
index a64513f..0000000
--- a/audio/core/4.0/vts/functional/ValidateAudioConfiguration.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <unistd.h>
-#include <string>
-
-#include "utility/ValidateXml.h"
-
-TEST(CheckConfig, audioPolicyConfigurationValidation) {
-    RecordProperty("description",
-                   "Verify that the audio policy configuration file "
-                   "is valid according to the schema");
-
-    std::vector<const char*> locations = {"/odm/etc", "/vendor/etc", "/system/etc"};
-    EXPECT_ONE_VALID_XML_MULTIPLE_LOCATIONS("audio_policy_configuration.xml", locations,
-                                            "/data/local/tmp/audio_policy_configuration_V4_0.xsd");
-}
diff --git a/audio/core/all-versions/default/Android.bp b/audio/core/all-versions/default/Android.bp
index bb02863..a1af3c4 100644
--- a/audio/core/all-versions/default/Android.bp
+++ b/audio/core/all-versions/default/Android.bp
@@ -1,7 +1,18 @@
-cc_library_headers {
-    name: "android.hardware.audio.core@all-versions-impl",
+cc_defaults {
+    name: "android.hardware.audio-impl_default",
     relative_install_path: "hw",
+    proprietary: true,
     vendor: true,
+    srcs: [
+        "Conversions.cpp",
+        "Device.cpp",
+        "DevicesFactory.cpp",
+        "ParametersUtil.cpp",
+        "PrimaryDevice.cpp",
+        "Stream.cpp",
+        "StreamIn.cpp",
+        "StreamOut.cpp",
+    ],
 
     defaults: ["hidl_defaults"],
 
@@ -20,10 +31,65 @@
     ],
 
     header_libs: [
+        "android.hardware.audio.common.util@all-versions",
         "libaudioclient_headers",
         "libaudio_system_headers",
         "libhardware_headers",
         "libmedia_headers",
-         "android.hardware.audio.common.util@all-versions",
     ],
+
+    whole_static_libs: [
+        "libmedia_helper",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio@2.0-impl",
+    defaults: ["android.hardware.audio-impl_default"],
+
+    shared_libs: [
+        "android.hardware.audio@2.0",
+        "android.hardware.audio.common@2.0",
+        "android.hardware.audio.common@2.0-util",
+    ],
+
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_library_shared {
+    name: "android.hardware.audio@4.0-impl",
+    defaults: ["android.hardware.audio-impl_default"],
+
+    shared_libs: [
+        "android.hardware.audio@4.0",
+        "android.hardware.audio.common@4.0",
+        "android.hardware.audio.common@4.0-util",
+    ],
+
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_library_shared {
+    name: "android.hardware.audio@5.0-impl",
+    defaults: ["android.hardware.audio-impl_default"],
+
+    shared_libs: [
+        "android.hardware.audio@5.0",
+        "android.hardware.audio.common@5.0",
+        "android.hardware.audio.common@5.0-util",
+    ],
+
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
 }
diff --git a/audio/core/all-versions/default/Conversions.cpp b/audio/core/all-versions/default/Conversions.cpp
new file mode 100644
index 0000000..11872c0
--- /dev/null
+++ b/audio/core/all-versions/default/Conversions.cpp
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "core/default/Conversions.h"
+
+#include <stdio.h>
+
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+std::string deviceAddressToHal(const DeviceAddress& address) {
+    // HAL assumes that the address is NUL-terminated.
+    char halAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
+    memset(halAddress, 0, sizeof(halAddress));
+    uint32_t halDevice = static_cast<uint32_t>(address.device);
+    const bool isInput = (halDevice & AUDIO_DEVICE_BIT_IN) != 0;
+    if (isInput) halDevice &= ~AUDIO_DEVICE_BIT_IN;
+    if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_ALL_A2DP) != 0) ||
+        (isInput && (halDevice & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) != 0)) {
+        snprintf(halAddress, sizeof(halAddress), "%02X:%02X:%02X:%02X:%02X:%02X",
+                 address.address.mac[0], address.address.mac[1], address.address.mac[2],
+                 address.address.mac[3], address.address.mac[4], address.address.mac[5]);
+    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_IP) != 0) ||
+               (isInput && (halDevice & AUDIO_DEVICE_IN_IP) != 0)) {
+        snprintf(halAddress, sizeof(halAddress), "%d.%d.%d.%d", address.address.ipv4[0],
+                 address.address.ipv4[1], address.address.ipv4[2], address.address.ipv4[3]);
+    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_ALL_USB) != 0) ||
+               (isInput && (halDevice & AUDIO_DEVICE_IN_ALL_USB) != 0)) {
+        snprintf(halAddress, sizeof(halAddress), "card=%d;device=%d", address.address.alsa.card,
+                 address.address.alsa.device);
+    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_BUS) != 0) ||
+               (isInput && (halDevice & AUDIO_DEVICE_IN_BUS) != 0)) {
+        snprintf(halAddress, sizeof(halAddress), "%s", address.busAddress.c_str());
+    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) != 0 ||
+               (isInput && (halDevice & AUDIO_DEVICE_IN_REMOTE_SUBMIX) != 0)) {
+        snprintf(halAddress, sizeof(halAddress), "%s", address.rSubmixAddress.c_str());
+    }
+    return halAddress;
+}
+
+#if MAJOR_VERSION >= 4
+status_t deviceAddressFromHal(audio_devices_t device, const char* halAddress,
+                              DeviceAddress* address) {
+    if (address == nullptr) {
+        return BAD_VALUE;
+    }
+    address->device = AudioDevice(device);
+    if (halAddress == nullptr || strnlen(halAddress, AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) {
+        return OK;
+    }
+
+    const bool isInput = (device & AUDIO_DEVICE_BIT_IN) != 0;
+    if (isInput) device &= ~AUDIO_DEVICE_BIT_IN;
+    if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_A2DP) != 0) ||
+        (isInput && (device & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) != 0)) {
+        int status =
+            sscanf(halAddress, "%hhX:%hhX:%hhX:%hhX:%hhX:%hhX", &address->address.mac[0],
+                   &address->address.mac[1], &address->address.mac[2], &address->address.mac[3],
+                   &address->address.mac[4], &address->address.mac[5]);
+        return status == 6 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_IP) != 0) ||
+               (isInput && (device & AUDIO_DEVICE_IN_IP) != 0)) {
+        int status =
+            sscanf(halAddress, "%hhu.%hhu.%hhu.%hhu", &address->address.ipv4[0],
+                   &address->address.ipv4[1], &address->address.ipv4[2], &address->address.ipv4[3]);
+        return status == 4 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_USB)) != 0 ||
+               (isInput && (device & AUDIO_DEVICE_IN_ALL_USB)) != 0) {
+        int status = sscanf(halAddress, "card=%d;device=%d", &address->address.alsa.card,
+                            &address->address.alsa.device);
+        return status == 2 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_BUS) != 0) ||
+               (isInput && (device & AUDIO_DEVICE_IN_BUS) != 0)) {
+        address->busAddress = halAddress;
+        return OK;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) != 0 ||
+               (isInput && (device & AUDIO_DEVICE_IN_REMOTE_SUBMIX) != 0)) {
+        address->rSubmixAddress = halAddress;
+        return OK;
+    }
+    address->busAddress = halAddress;
+    return OK;
+}
+
+AudioMicrophoneChannelMapping halToChannelMapping(audio_microphone_channel_mapping_t mapping) {
+    switch (mapping) {
+        case AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED:
+            return AudioMicrophoneChannelMapping::UNUSED;
+        case AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT:
+            return AudioMicrophoneChannelMapping::DIRECT;
+        case AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED:
+            return AudioMicrophoneChannelMapping::PROCESSED;
+        default:
+            ALOGE("Invalid channel mapping type: %d", mapping);
+            return AudioMicrophoneChannelMapping::UNUSED;
+    }
+}
+
+AudioMicrophoneLocation halToLocation(audio_microphone_location_t location) {
+    switch (location) {
+        default:
+        case AUDIO_MICROPHONE_LOCATION_UNKNOWN:
+            return AudioMicrophoneLocation::UNKNOWN;
+        case AUDIO_MICROPHONE_LOCATION_MAINBODY:
+            return AudioMicrophoneLocation::MAINBODY;
+        case AUDIO_MICROPHONE_LOCATION_MAINBODY_MOVABLE:
+            return AudioMicrophoneLocation::MAINBODY_MOVABLE;
+        case AUDIO_MICROPHONE_LOCATION_PERIPHERAL:
+            return AudioMicrophoneLocation::PERIPHERAL;
+    }
+}
+
+AudioMicrophoneDirectionality halToDirectionality(audio_microphone_directionality_t dir) {
+    switch (dir) {
+        default:
+        case AUDIO_MICROPHONE_DIRECTIONALITY_UNKNOWN:
+            return AudioMicrophoneDirectionality::UNKNOWN;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_OMNI:
+            return AudioMicrophoneDirectionality::OMNI;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_BI_DIRECTIONAL:
+            return AudioMicrophoneDirectionality::BI_DIRECTIONAL;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_CARDIOID:
+            return AudioMicrophoneDirectionality::CARDIOID;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_HYPER_CARDIOID:
+            return AudioMicrophoneDirectionality::HYPER_CARDIOID;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_SUPER_CARDIOID:
+            return AudioMicrophoneDirectionality::SUPER_CARDIOID;
+    }
+}
+
+bool halToMicrophoneCharacteristics(MicrophoneInfo* pDst,
+                                    const struct audio_microphone_characteristic_t& src) {
+    bool status = false;
+    if (pDst != NULL) {
+        pDst->deviceId = src.device_id;
+
+        if (deviceAddressFromHal(src.device, src.address, &pDst->deviceAddress) != OK) {
+            return false;
+        }
+        pDst->channelMapping.resize(AUDIO_CHANNEL_COUNT_MAX);
+        for (size_t ch = 0; ch < pDst->channelMapping.size(); ch++) {
+            pDst->channelMapping[ch] = halToChannelMapping(src.channel_mapping[ch]);
+        }
+        pDst->location = halToLocation(src.location);
+        pDst->group = (AudioMicrophoneGroup)src.group;
+        pDst->indexInTheGroup = (uint32_t)src.index_in_the_group;
+        pDst->sensitivity = src.sensitivity;
+        pDst->maxSpl = src.max_spl;
+        pDst->minSpl = src.min_spl;
+        pDst->directionality = halToDirectionality(src.directionality);
+        pDst->frequencyResponse.resize(src.num_frequency_responses);
+        for (size_t k = 0; k < src.num_frequency_responses; k++) {
+            pDst->frequencyResponse[k].frequency = src.frequency_responses[0][k];
+            pDst->frequencyResponse[k].level = src.frequency_responses[1][k];
+        }
+        pDst->position.x = src.geometric_location.x;
+        pDst->position.y = src.geometric_location.y;
+        pDst->position.z = src.geometric_location.z;
+
+        pDst->orientation.x = src.orientation.x;
+        pDst->orientation.y = src.orientation.y;
+        pDst->orientation.z = src.orientation.z;
+
+        status = true;
+    }
+    return status;
+}
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/Device.cpp b/audio/core/all-versions/default/Device.cpp
new file mode 100644
index 0000000..bec22df
--- /dev/null
+++ b/audio/core/all-versions/default/Device.cpp
@@ -0,0 +1,390 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DeviceHAL"
+
+#include "core/default/Device.h"
+#include <HidlUtils.h>
+#include "core/default/Conversions.h"
+#include "core/default/StreamIn.h"
+#include "core/default/StreamOut.h"
+#include "core/default/Util.h"
+
+//#define LOG_NDEBUG 0
+
+#include <memory.h>
+#include <string.h>
+#include <algorithm>
+
+#include <android/log.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+
+Device::Device(audio_hw_device_t* device) : mDevice(device) {}
+
+Device::~Device() {
+    int status = audio_hw_device_close(mDevice);
+    ALOGW_IF(status, "Error closing audio hw device %p: %s", mDevice, strerror(-status));
+    mDevice = nullptr;
+}
+
+Result Device::analyzeStatus(const char* funcName, int status,
+                             const std::vector<int>& ignoreErrors) {
+    return util::analyzeStatus("Device", funcName, status, ignoreErrors);
+}
+
+void Device::closeInputStream(audio_stream_in_t* stream) {
+    mDevice->close_input_stream(mDevice, stream);
+}
+
+void Device::closeOutputStream(audio_stream_out_t* stream) {
+    mDevice->close_output_stream(mDevice, stream);
+}
+
+char* Device::halGetParameters(const char* keys) {
+    return mDevice->get_parameters(mDevice, keys);
+}
+
+int Device::halSetParameters(const char* keysAndValues) {
+    return mDevice->set_parameters(mDevice, keysAndValues);
+}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IDevice follow.
+Return<Result> Device::initCheck() {
+    return analyzeStatus("init_check", mDevice->init_check(mDevice));
+}
+
+Return<Result> Device::setMasterVolume(float volume) {
+    if (mDevice->set_master_volume == NULL) {
+        return Result::NOT_SUPPORTED;
+    }
+    if (!isGainNormalized(volume)) {
+        ALOGW("Can not set a master volume (%f) outside [0,1]", volume);
+        return Result::INVALID_ARGUMENTS;
+    }
+    return analyzeStatus("set_master_volume", mDevice->set_master_volume(mDevice, volume));
+}
+
+Return<void> Device::getMasterVolume(getMasterVolume_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    float volume = 0;
+    if (mDevice->get_master_volume != NULL) {
+        retval = analyzeStatus("get_master_volume", mDevice->get_master_volume(mDevice, &volume));
+    }
+    _hidl_cb(retval, volume);
+    return Void();
+}
+
+Return<Result> Device::setMicMute(bool mute) {
+    return analyzeStatus("set_mic_mute", mDevice->set_mic_mute(mDevice, mute));
+}
+
+Return<void> Device::getMicMute(getMicMute_cb _hidl_cb) {
+    bool mute = false;
+    Result retval = analyzeStatus("get_mic_mute", mDevice->get_mic_mute(mDevice, &mute));
+    _hidl_cb(retval, mute);
+    return Void();
+}
+
+Return<Result> Device::setMasterMute(bool mute) {
+    Result retval(Result::NOT_SUPPORTED);
+    if (mDevice->set_master_mute != NULL) {
+        retval = analyzeStatus("set_master_mute", mDevice->set_master_mute(mDevice, mute));
+    }
+    return retval;
+}
+
+Return<void> Device::getMasterMute(getMasterMute_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    bool mute = false;
+    if (mDevice->get_master_mute != NULL) {
+        retval = analyzeStatus("get_master_mute", mDevice->get_master_mute(mDevice, &mute));
+    }
+    _hidl_cb(retval, mute);
+    return Void();
+}
+
+Return<void> Device::getInputBufferSize(const AudioConfig& config, getInputBufferSize_cb _hidl_cb) {
+    audio_config_t halConfig;
+    HidlUtils::audioConfigToHal(config, &halConfig);
+    size_t halBufferSize = mDevice->get_input_buffer_size(mDevice, &halConfig);
+    Result retval(Result::INVALID_ARGUMENTS);
+    uint64_t bufferSize = 0;
+    if (halBufferSize != 0) {
+        retval = Result::OK;
+        bufferSize = halBufferSize;
+    }
+    _hidl_cb(retval, bufferSize);
+    return Void();
+}
+
+std::tuple<Result, sp<IStreamOut>> Device::openOutputStreamImpl(int32_t ioHandle,
+                                                                const DeviceAddress& device,
+                                                                const AudioConfig& config,
+                                                                AudioOutputFlagBitfield flags,
+                                                                AudioConfig* suggestedConfig) {
+    audio_config_t halConfig;
+    HidlUtils::audioConfigToHal(config, &halConfig);
+    audio_stream_out_t* halStream;
+    ALOGV(
+        "open_output_stream handle: %d devices: %x flags: %#x "
+        "srate: %d format %#x channels %x address %s",
+        ioHandle, static_cast<audio_devices_t>(device.device),
+        static_cast<audio_output_flags_t>(flags), halConfig.sample_rate, halConfig.format,
+        halConfig.channel_mask, deviceAddressToHal(device).c_str());
+    int status =
+        mDevice->open_output_stream(mDevice, ioHandle, static_cast<audio_devices_t>(device.device),
+                                    static_cast<audio_output_flags_t>(flags), &halConfig,
+                                    &halStream, deviceAddressToHal(device).c_str());
+    ALOGV("open_output_stream status %d stream %p", status, halStream);
+    sp<IStreamOut> streamOut;
+    if (status == OK) {
+        streamOut = new StreamOut(this, halStream);
+    }
+    HidlUtils::audioConfigFromHal(halConfig, suggestedConfig);
+    return {analyzeStatus("open_output_stream", status, {EINVAL} /*ignore*/), streamOut};
+}
+
+std::tuple<Result, sp<IStreamIn>> Device::openInputStreamImpl(
+    int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
+    AudioInputFlagBitfield flags, AudioSource source, AudioConfig* suggestedConfig) {
+    audio_config_t halConfig;
+    HidlUtils::audioConfigToHal(config, &halConfig);
+    audio_stream_in_t* halStream;
+    ALOGV(
+        "open_input_stream handle: %d devices: %x flags: %#x "
+        "srate: %d format %#x channels %x address %s source %d",
+        ioHandle, static_cast<audio_devices_t>(device.device),
+        static_cast<audio_input_flags_t>(flags), halConfig.sample_rate, halConfig.format,
+        halConfig.channel_mask, deviceAddressToHal(device).c_str(),
+        static_cast<audio_source_t>(source));
+    int status = mDevice->open_input_stream(
+        mDevice, ioHandle, static_cast<audio_devices_t>(device.device), &halConfig, &halStream,
+        static_cast<audio_input_flags_t>(flags), deviceAddressToHal(device).c_str(),
+        static_cast<audio_source_t>(source));
+    ALOGV("open_input_stream status %d stream %p", status, halStream);
+    sp<IStreamIn> streamIn;
+    if (status == OK) {
+        streamIn = new StreamIn(this, halStream);
+    }
+    HidlUtils::audioConfigFromHal(halConfig, suggestedConfig);
+    return {analyzeStatus("open_input_stream", status, {EINVAL} /*ignore*/), streamIn};
+}
+
+#if MAJOR_VERSION == 2
+Return<void> Device::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                      const AudioConfig& config, AudioOutputFlagBitfield flags,
+                                      openOutputStream_cb _hidl_cb) {
+    AudioConfig suggestedConfig;
+    auto [result, streamOut] =
+        openOutputStreamImpl(ioHandle, device, config, flags, &suggestedConfig);
+    _hidl_cb(result, streamOut, suggestedConfig);
+    return Void();
+}
+
+Return<void> Device::openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                     const AudioConfig& config, AudioInputFlagBitfield flags,
+                                     AudioSource source, openInputStream_cb _hidl_cb) {
+    AudioConfig suggestedConfig;
+    auto [result, streamIn] =
+        openInputStreamImpl(ioHandle, device, config, flags, source, &suggestedConfig);
+    _hidl_cb(result, streamIn, suggestedConfig);
+    return Void();
+}
+
+#elif MAJOR_VERSION >= 4
+Return<void> Device::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                      const AudioConfig& config, AudioOutputFlagBitfield flags,
+                                      const SourceMetadata& sourceMetadata,
+                                      openOutputStream_cb _hidl_cb) {
+    AudioConfig suggestedConfig;
+    auto [result, streamOut] =
+        openOutputStreamImpl(ioHandle, device, config, flags, &suggestedConfig);
+    if (streamOut) {
+        streamOut->updateSourceMetadata(sourceMetadata);
+    }
+    _hidl_cb(result, streamOut, suggestedConfig);
+    return Void();
+}
+
+Return<void> Device::openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                     const AudioConfig& config, AudioInputFlagBitfield flags,
+                                     const SinkMetadata& sinkMetadata,
+                                     openInputStream_cb _hidl_cb) {
+    if (sinkMetadata.tracks.size() == 0) {
+        // This should never happen, the framework must not create as stream
+        // if there is no client
+        ALOGE("openInputStream called without tracks connected");
+        _hidl_cb(Result::INVALID_ARGUMENTS, nullptr, AudioConfig());
+        return Void();
+    }
+    // Pick the first one as the main.
+    AudioSource source = sinkMetadata.tracks[0].source;
+    AudioConfig suggestedConfig;
+    auto [result, streamIn] =
+        openInputStreamImpl(ioHandle, device, config, flags, source, &suggestedConfig);
+    if (streamIn) {
+        streamIn->updateSinkMetadata(sinkMetadata);
+    }
+    _hidl_cb(result, streamIn, suggestedConfig);
+    return Void();
+}
+#endif /* MAJOR_VERSION */
+
+Return<bool> Device::supportsAudioPatches() {
+    return version() >= AUDIO_DEVICE_API_VERSION_3_0;
+}
+
+Return<void> Device::createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
+                                      const hidl_vec<AudioPortConfig>& sinks,
+                                      createAudioPatch_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    AudioPatchHandle patch = 0;
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        std::unique_ptr<audio_port_config[]> halSources(HidlUtils::audioPortConfigsToHal(sources));
+        std::unique_ptr<audio_port_config[]> halSinks(HidlUtils::audioPortConfigsToHal(sinks));
+        audio_patch_handle_t halPatch = AUDIO_PATCH_HANDLE_NONE;
+        retval = analyzeStatus("create_audio_patch",
+                               mDevice->create_audio_patch(mDevice, sources.size(), &halSources[0],
+                                                           sinks.size(), &halSinks[0], &halPatch));
+        if (retval == Result::OK) {
+            patch = static_cast<AudioPatchHandle>(halPatch);
+        }
+    }
+    _hidl_cb(retval, patch);
+    return Void();
+}
+
+Return<Result> Device::releaseAudioPatch(int32_t patch) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        return analyzeStatus(
+            "release_audio_patch",
+            mDevice->release_audio_patch(mDevice, static_cast<audio_patch_handle_t>(patch)));
+    }
+    return Result::NOT_SUPPORTED;
+}
+
+Return<void> Device::getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) {
+    audio_port halPort;
+    HidlUtils::audioPortToHal(port, &halPort);
+    Result retval = analyzeStatus("get_audio_port", mDevice->get_audio_port(mDevice, &halPort));
+    AudioPort resultPort = port;
+    if (retval == Result::OK) {
+        HidlUtils::audioPortFromHal(halPort, &resultPort);
+    }
+    _hidl_cb(retval, resultPort);
+    return Void();
+}
+
+Return<Result> Device::setAudioPortConfig(const AudioPortConfig& config) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        struct audio_port_config halPortConfig;
+        HidlUtils::audioPortConfigToHal(config, &halPortConfig);
+        return analyzeStatus("set_audio_port_config",
+                             mDevice->set_audio_port_config(mDevice, &halPortConfig));
+    }
+    return Result::NOT_SUPPORTED;
+}
+
+#if MAJOR_VERSION == 2
+Return<AudioHwSync> Device::getHwAvSync() {
+    int halHwAvSync;
+    Result retval = getParam(AudioParameter::keyHwAvSync, &halHwAvSync);
+    return retval == Result::OK ? halHwAvSync : AUDIO_HW_SYNC_INVALID;
+}
+#elif MAJOR_VERSION >= 4
+Return<void> Device::getHwAvSync(getHwAvSync_cb _hidl_cb) {
+    int halHwAvSync;
+    Result retval = getParam(AudioParameter::keyHwAvSync, &halHwAvSync);
+    _hidl_cb(retval, halHwAvSync);
+    return Void();
+}
+#endif
+
+Return<Result> Device::setScreenState(bool turnedOn) {
+    return setParam(AudioParameter::keyScreenState, turnedOn);
+}
+
+#if MAJOR_VERSION == 2
+Return<void> Device::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
+    getParametersImpl({}, keys, _hidl_cb);
+    return Void();
+}
+
+Return<Result> Device::setParameters(const hidl_vec<ParameterValue>& parameters) {
+    return setParametersImpl({} /* context */, parameters);
+}
+#elif MAJOR_VERSION >= 4
+Return<void> Device::getParameters(const hidl_vec<ParameterValue>& context,
+                                   const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
+    getParametersImpl(context, keys, _hidl_cb);
+    return Void();
+}
+Return<Result> Device::setParameters(const hidl_vec<ParameterValue>& context,
+                                     const hidl_vec<ParameterValue>& parameters) {
+    return setParametersImpl(context, parameters);
+}
+#endif
+
+#if MAJOR_VERSION == 2
+Return<void> Device::debugDump(const hidl_handle& fd) {
+    return debug(fd, {});
+}
+#endif
+
+Return<void> Device::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
+    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
+        analyzeStatus("dump", mDevice->dump(mDevice, fd->data[0]));
+    }
+    return Void();
+}
+
+#if MAJOR_VERSION >= 4
+Return<void> Device::getMicrophones(getMicrophones_cb _hidl_cb) {
+    Result retval = Result::NOT_SUPPORTED;
+    size_t actual_mics = AUDIO_MICROPHONE_MAX_COUNT;
+    audio_microphone_characteristic_t mic_array[AUDIO_MICROPHONE_MAX_COUNT];
+
+    hidl_vec<MicrophoneInfo> microphones;
+    if (mDevice->get_microphones != NULL &&
+        mDevice->get_microphones(mDevice, &mic_array[0], &actual_mics) == 0) {
+        microphones.resize(actual_mics);
+        for (size_t i = 0; i < actual_mics; ++i) {
+            halToMicrophoneCharacteristics(&microphones[i], mic_array[i]);
+        }
+        retval = Result::OK;
+    }
+    _hidl_cb(retval, microphones);
+    return Void();
+}
+
+Return<Result> Device::setConnectedState(const DeviceAddress& address, bool connected) {
+    auto key = connected ? AudioParameter::keyStreamConnect : AudioParameter::keyStreamDisconnect;
+    return setParam(key, address);
+}
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/DevicesFactory.cpp b/audio/core/all-versions/default/DevicesFactory.cpp
new file mode 100644
index 0000000..729f18c
--- /dev/null
+++ b/audio/core/all-versions/default/DevicesFactory.cpp
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DevicesFactoryHAL"
+
+#include "core/default/DevicesFactory.h"
+#include "core/default/Device.h"
+#include "core/default/PrimaryDevice.h"
+
+#include <string.h>
+
+#include <android/log.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+#if MAJOR_VERSION == 2
+Return<void> DevicesFactory::openDevice(IDevicesFactory::Device device, openDevice_cb _hidl_cb) {
+    switch (device) {
+        case IDevicesFactory::Device::PRIMARY:
+            return openDevice<PrimaryDevice>(AUDIO_HARDWARE_MODULE_ID_PRIMARY, _hidl_cb);
+        case IDevicesFactory::Device::A2DP:
+            return openDevice(AUDIO_HARDWARE_MODULE_ID_A2DP, _hidl_cb);
+        case IDevicesFactory::Device::USB:
+            return openDevice(AUDIO_HARDWARE_MODULE_ID_USB, _hidl_cb);
+        case IDevicesFactory::Device::R_SUBMIX:
+            return openDevice(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, _hidl_cb);
+        case IDevicesFactory::Device::STUB:
+            return openDevice(AUDIO_HARDWARE_MODULE_ID_STUB, _hidl_cb);
+    }
+    _hidl_cb(Result::INVALID_ARGUMENTS, nullptr);
+    return Void();
+}
+#elif MAJOR_VERSION >= 4
+Return<void> DevicesFactory::openDevice(const hidl_string& moduleName, openDevice_cb _hidl_cb) {
+    if (moduleName == AUDIO_HARDWARE_MODULE_ID_PRIMARY) {
+        return openDevice<PrimaryDevice>(moduleName.c_str(), _hidl_cb);
+    }
+    return openDevice(moduleName.c_str(), _hidl_cb);
+}
+Return<void> DevicesFactory::openPrimaryDevice(openPrimaryDevice_cb _hidl_cb) {
+    return openDevice<PrimaryDevice>(AUDIO_HARDWARE_MODULE_ID_PRIMARY, _hidl_cb);
+}
+#endif
+
+Return<void> DevicesFactory::openDevice(const char* moduleName, openDevice_cb _hidl_cb) {
+    return openDevice<implementation::Device>(moduleName, _hidl_cb);
+}
+
+template <class DeviceShim, class Callback>
+Return<void> DevicesFactory::openDevice(const char* moduleName, Callback _hidl_cb) {
+    audio_hw_device_t* halDevice;
+    Result retval(Result::INVALID_ARGUMENTS);
+    sp<DeviceShim> result;
+    int halStatus = loadAudioInterface(moduleName, &halDevice);
+    if (halStatus == OK) {
+        result = new DeviceShim(halDevice);
+        retval = Result::OK;
+    } else if (halStatus == -EINVAL) {
+        retval = Result::NOT_INITIALIZED;
+    }
+    _hidl_cb(retval, result);
+    return Void();
+}
+
+// static
+int DevicesFactory::loadAudioInterface(const char* if_name, audio_hw_device_t** dev) {
+    const hw_module_t* mod;
+    int rc;
+
+    rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
+    if (rc) {
+        ALOGE("%s couldn't load audio hw module %s.%s (%s)", __func__, AUDIO_HARDWARE_MODULE_ID,
+              if_name, strerror(-rc));
+        goto out;
+    }
+    rc = audio_hw_device_open(mod, dev);
+    if (rc) {
+        ALOGE("%s couldn't open audio hw device in %s.%s (%s)", __func__, AUDIO_HARDWARE_MODULE_ID,
+              if_name, strerror(-rc));
+        goto out;
+    }
+    if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
+        ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
+        rc = -EINVAL;
+        audio_hw_device_close(*dev);
+        goto out;
+    }
+    return OK;
+
+out:
+    *dev = NULL;
+    return rc;
+}
+
+IDevicesFactory* HIDL_FETCH_IDevicesFactory(const char* name) {
+    return strcmp(name, "default") == 0 ? new DevicesFactory() : nullptr;
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/OWNERS b/audio/core/all-versions/default/OWNERS
similarity index 100%
rename from audio/core/all-versions/OWNERS
rename to audio/core/all-versions/default/OWNERS
diff --git a/audio/core/all-versions/default/ParametersUtil.cpp b/audio/core/all-versions/default/ParametersUtil.cpp
new file mode 100644
index 0000000..0c8e28a
--- /dev/null
+++ b/audio/core/all-versions/default/ParametersUtil.cpp
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "core/default/ParametersUtil.h"
+#include "core/default/Conversions.h"
+#include "core/default/Util.h"
+
+#include <system/audio.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+/** Converts a status_t in Result according to the rules of AudioParameter::get*
+ * Note: Static method and not private method to avoid leaking status_t dependency
+ */
+static Result getHalStatusToResult(status_t status) {
+    switch (status) {
+        case OK:
+            return Result::OK;
+        case BAD_VALUE:  // Nothing was returned, probably because the HAL does
+                         // not handle it
+            return Result::NOT_SUPPORTED;
+        case INVALID_OPERATION:  // Conversion from string to the requested type
+                                 // failed
+            return Result::INVALID_ARGUMENTS;
+        default:  // Should not happen
+            ALOGW("Unexpected status returned by getParam: %u", status);
+            return Result::INVALID_ARGUMENTS;
+    }
+}
+
+Result ParametersUtil::getParam(const char* name, bool* value) {
+    String8 halValue;
+    Result retval = getParam(name, &halValue);
+    *value = false;
+    if (retval == Result::OK) {
+        if (halValue.empty()) {
+            return Result::NOT_SUPPORTED;
+        }
+        *value = !(halValue == AudioParameter::valueOff);
+    }
+    return retval;
+}
+
+Result ParametersUtil::getParam(const char* name, int* value) {
+    const String8 halName(name);
+    AudioParameter keys;
+    keys.addKey(halName);
+    std::unique_ptr<AudioParameter> params = getParams(keys);
+    return getHalStatusToResult(params->getInt(halName, *value));
+}
+
+Result ParametersUtil::getParam(const char* name, String8* value, AudioParameter context) {
+    const String8 halName(name);
+    context.addKey(halName);
+    std::unique_ptr<AudioParameter> params = getParams(context);
+    return getHalStatusToResult(params->get(halName, *value));
+}
+
+void ParametersUtil::getParametersImpl(
+    const hidl_vec<ParameterValue>& context, const hidl_vec<hidl_string>& keys,
+    std::function<void(Result retval, const hidl_vec<ParameterValue>& parameters)> cb) {
+    AudioParameter halKeys;
+    for (auto& pair : context) {
+        halKeys.add(String8(pair.key.c_str()), String8(pair.value.c_str()));
+    }
+    for (size_t i = 0; i < keys.size(); ++i) {
+        halKeys.addKey(String8(keys[i].c_str()));
+    }
+    std::unique_ptr<AudioParameter> halValues = getParams(halKeys);
+    Result retval =
+        (keys.size() == 0 || halValues->size() != 0) ? Result::OK : Result::NOT_SUPPORTED;
+    hidl_vec<ParameterValue> result;
+    result.resize(halValues->size());
+    String8 halKey, halValue;
+    for (size_t i = 0; i < halValues->size(); ++i) {
+        status_t status = halValues->getAt(i, halKey, halValue);
+        if (status != OK) {
+            result.resize(0);
+            retval = getHalStatusToResult(status);
+            break;
+        }
+        result[i].key = halKey.string();
+        result[i].value = halValue.string();
+    }
+    cb(retval, result);
+}
+
+std::unique_ptr<AudioParameter> ParametersUtil::getParams(const AudioParameter& keys) {
+    String8 paramsAndValues;
+    char* halValues = halGetParameters(keys.keysToString().string());
+    if (halValues != NULL) {
+        paramsAndValues.setTo(halValues);
+        free(halValues);
+    } else {
+        paramsAndValues.clear();
+    }
+    return std::unique_ptr<AudioParameter>(new AudioParameter(paramsAndValues));
+}
+
+Result ParametersUtil::setParam(const char* name, const char* value) {
+    AudioParameter param;
+    param.add(String8(name), String8(value));
+    return setParams(param);
+}
+
+Result ParametersUtil::setParam(const char* name, bool value) {
+    AudioParameter param;
+    param.add(String8(name), String8(value ? AudioParameter::valueOn : AudioParameter::valueOff));
+    return setParams(param);
+}
+
+Result ParametersUtil::setParam(const char* name, int value) {
+    AudioParameter param;
+    param.addInt(String8(name), value);
+    return setParams(param);
+}
+
+Result ParametersUtil::setParam(const char* name, float value) {
+    AudioParameter param;
+    param.addFloat(String8(name), value);
+    return setParams(param);
+}
+
+Result ParametersUtil::setParametersImpl(const hidl_vec<ParameterValue>& context,
+                                         const hidl_vec<ParameterValue>& parameters) {
+    AudioParameter params;
+    for (auto& pair : context) {
+        params.add(String8(pair.key.c_str()), String8(pair.value.c_str()));
+    }
+    for (size_t i = 0; i < parameters.size(); ++i) {
+        params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
+    }
+    return setParams(params);
+}
+Result ParametersUtil::setParam(const char* name, const DeviceAddress& address) {
+    AudioParameter params(String8(deviceAddressToHal(address).c_str()));
+    params.addInt(String8(name), int(address.device));
+    return setParams(params);
+}
+
+Result ParametersUtil::setParams(const AudioParameter& param) {
+    int halStatus = halSetParameters(param.toString().string());
+    return util::analyzeStatus(halStatus);
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/PrimaryDevice.cpp b/audio/core/all-versions/default/PrimaryDevice.cpp
new file mode 100644
index 0000000..99590b0
--- /dev/null
+++ b/audio/core/all-versions/default/PrimaryDevice.cpp
@@ -0,0 +1,316 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "PrimaryDeviceHAL"
+
+#include "core/default/PrimaryDevice.h"
+#include "core/default/Util.h"
+
+#if MAJOR_VERSION >= 4
+#include <cmath>
+#endif
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+PrimaryDevice::PrimaryDevice(audio_hw_device_t* device) : mDevice(new Device(device)) {}
+
+PrimaryDevice::~PrimaryDevice() {}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IDevice follow.
+Return<Result> PrimaryDevice::initCheck() {
+    return mDevice->initCheck();
+}
+
+Return<Result> PrimaryDevice::setMasterVolume(float volume) {
+    return mDevice->setMasterVolume(volume);
+}
+
+Return<void> PrimaryDevice::getMasterVolume(getMasterVolume_cb _hidl_cb) {
+    return mDevice->getMasterVolume(_hidl_cb);
+}
+
+Return<Result> PrimaryDevice::setMicMute(bool mute) {
+    return mDevice->setMicMute(mute);
+}
+
+Return<void> PrimaryDevice::getMicMute(getMicMute_cb _hidl_cb) {
+    return mDevice->getMicMute(_hidl_cb);
+}
+
+Return<Result> PrimaryDevice::setMasterMute(bool mute) {
+    return mDevice->setMasterMute(mute);
+}
+
+Return<void> PrimaryDevice::getMasterMute(getMasterMute_cb _hidl_cb) {
+    return mDevice->getMasterMute(_hidl_cb);
+}
+
+Return<void> PrimaryDevice::getInputBufferSize(const AudioConfig& config,
+                                               getInputBufferSize_cb _hidl_cb) {
+    return mDevice->getInputBufferSize(config, _hidl_cb);
+}
+
+#if MAJOR_VERSION == 2
+Return<void> PrimaryDevice::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                             const AudioConfig& config,
+                                             AudioOutputFlagBitfield flags,
+                                             openOutputStream_cb _hidl_cb) {
+    return mDevice->openOutputStream(ioHandle, device, config, flags, _hidl_cb);
+}
+
+Return<void> PrimaryDevice::openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                            const AudioConfig& config, AudioInputFlagBitfield flags,
+                                            AudioSource source, openInputStream_cb _hidl_cb) {
+    return mDevice->openInputStream(ioHandle, device, config, flags, source, _hidl_cb);
+}
+#elif MAJOR_VERSION >= 4
+Return<void> PrimaryDevice::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                             const AudioConfig& config,
+                                             AudioOutputFlagBitfield flags,
+                                             const SourceMetadata& sourceMetadata,
+                                             openOutputStream_cb _hidl_cb) {
+    return mDevice->openOutputStream(ioHandle, device, config, flags, sourceMetadata, _hidl_cb);
+}
+
+Return<void> PrimaryDevice::openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                            const AudioConfig& config, AudioInputFlagBitfield flags,
+                                            const SinkMetadata& sinkMetadata,
+                                            openInputStream_cb _hidl_cb) {
+    return mDevice->openInputStream(ioHandle, device, config, flags, sinkMetadata, _hidl_cb);
+}
+#endif
+
+Return<bool> PrimaryDevice::supportsAudioPatches() {
+    return mDevice->supportsAudioPatches();
+}
+
+Return<void> PrimaryDevice::createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
+                                             const hidl_vec<AudioPortConfig>& sinks,
+                                             createAudioPatch_cb _hidl_cb) {
+    return mDevice->createAudioPatch(sources, sinks, _hidl_cb);
+}
+
+Return<Result> PrimaryDevice::releaseAudioPatch(int32_t patch) {
+    return mDevice->releaseAudioPatch(patch);
+}
+
+Return<void> PrimaryDevice::getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) {
+    return mDevice->getAudioPort(port, _hidl_cb);
+}
+
+Return<Result> PrimaryDevice::setAudioPortConfig(const AudioPortConfig& config) {
+    return mDevice->setAudioPortConfig(config);
+}
+
+Return<Result> PrimaryDevice::setScreenState(bool turnedOn) {
+    return mDevice->setScreenState(turnedOn);
+}
+
+#if MAJOR_VERSION == 2
+Return<AudioHwSync> PrimaryDevice::getHwAvSync() {
+    return mDevice->getHwAvSync();
+}
+
+Return<void> PrimaryDevice::getParameters(const hidl_vec<hidl_string>& keys,
+                                          getParameters_cb _hidl_cb) {
+    return mDevice->getParameters(keys, _hidl_cb);
+}
+
+Return<Result> PrimaryDevice::setParameters(const hidl_vec<ParameterValue>& parameters) {
+    return mDevice->setParameters(parameters);
+}
+
+Return<void> PrimaryDevice::debugDump(const hidl_handle& fd) {
+    return mDevice->debugDump(fd);
+}
+#elif MAJOR_VERSION >= 4
+Return<void> PrimaryDevice::getHwAvSync(getHwAvSync_cb _hidl_cb) {
+    return mDevice->getHwAvSync(_hidl_cb);
+}
+Return<void> PrimaryDevice::getParameters(const hidl_vec<ParameterValue>& context,
+                                          const hidl_vec<hidl_string>& keys,
+                                          getParameters_cb _hidl_cb) {
+    return mDevice->getParameters(context, keys, _hidl_cb);
+}
+Return<Result> PrimaryDevice::setParameters(const hidl_vec<ParameterValue>& context,
+                                            const hidl_vec<ParameterValue>& parameters) {
+    return mDevice->setParameters(context, parameters);
+}
+Return<void> PrimaryDevice::getMicrophones(getMicrophones_cb _hidl_cb) {
+    return mDevice->getMicrophones(_hidl_cb);
+}
+Return<Result> PrimaryDevice::setConnectedState(const DeviceAddress& address, bool connected) {
+    return mDevice->setConnectedState(address, connected);
+}
+#endif
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IPrimaryDevice follow.
+Return<Result> PrimaryDevice::setVoiceVolume(float volume) {
+    if (!isGainNormalized(volume)) {
+        ALOGW("Can not set a voice volume (%f) outside [0,1]", volume);
+        return Result::INVALID_ARGUMENTS;
+    }
+    return mDevice->analyzeStatus("set_voice_volume",
+                                  mDevice->device()->set_voice_volume(mDevice->device(), volume));
+}
+
+Return<Result> PrimaryDevice::setMode(AudioMode mode) {
+    // INVALID, CURRENT, CNT, MAX are reserved for internal use.
+    // TODO: remove the values from the HIDL interface
+    switch (mode) {
+        case AudioMode::NORMAL:
+        case AudioMode::RINGTONE:
+        case AudioMode::IN_CALL:
+        case AudioMode::IN_COMMUNICATION:
+            break;  // Valid values
+        default:
+            return Result::INVALID_ARGUMENTS;
+    };
+
+    return mDevice->analyzeStatus(
+        "set_mode",
+        mDevice->device()->set_mode(mDevice->device(), static_cast<audio_mode_t>(mode)));
+}
+
+Return<void> PrimaryDevice::getBtScoNrecEnabled(getBtScoNrecEnabled_cb _hidl_cb) {
+    bool enabled;
+    Result retval = mDevice->getParam(AudioParameter::keyBtNrec, &enabled);
+    _hidl_cb(retval, enabled);
+    return Void();
+}
+
+Return<Result> PrimaryDevice::setBtScoNrecEnabled(bool enabled) {
+    return mDevice->setParam(AudioParameter::keyBtNrec, enabled);
+}
+
+Return<void> PrimaryDevice::getBtScoWidebandEnabled(getBtScoWidebandEnabled_cb _hidl_cb) {
+    bool enabled;
+    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_BT_SCO_WB, &enabled);
+    _hidl_cb(retval, enabled);
+    return Void();
+}
+
+Return<Result> PrimaryDevice::setBtScoWidebandEnabled(bool enabled) {
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_BT_SCO_WB, enabled);
+}
+
+static const char* convertTtyModeFromHIDL(IPrimaryDevice::TtyMode mode) {
+    switch (mode) {
+        case IPrimaryDevice::TtyMode::OFF:
+            return AUDIO_PARAMETER_VALUE_TTY_OFF;
+        case IPrimaryDevice::TtyMode::VCO:
+            return AUDIO_PARAMETER_VALUE_TTY_VCO;
+        case IPrimaryDevice::TtyMode::HCO:
+            return AUDIO_PARAMETER_VALUE_TTY_HCO;
+        case IPrimaryDevice::TtyMode::FULL:
+            return AUDIO_PARAMETER_VALUE_TTY_FULL;
+        default:
+            return nullptr;
+    }
+}
+static IPrimaryDevice::TtyMode convertTtyModeToHIDL(const char* halMode) {
+    if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_OFF) == 0)
+        return IPrimaryDevice::TtyMode::OFF;
+    else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_VCO) == 0)
+        return IPrimaryDevice::TtyMode::VCO;
+    else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_HCO) == 0)
+        return IPrimaryDevice::TtyMode::HCO;
+    else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_FULL) == 0)
+        return IPrimaryDevice::TtyMode::FULL;
+    return IPrimaryDevice::TtyMode(-1);
+}
+
+Return<void> PrimaryDevice::getTtyMode(getTtyMode_cb _hidl_cb) {
+    String8 halMode;
+    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_TTY_MODE, &halMode);
+    if (retval != Result::OK) {
+        _hidl_cb(retval, TtyMode::OFF);
+        return Void();
+    }
+    TtyMode mode = convertTtyModeToHIDL(halMode);
+    if (mode == TtyMode(-1)) {
+        ALOGE("HAL returned invalid TTY value: %s", halMode.c_str());
+        _hidl_cb(Result::INVALID_STATE, TtyMode::OFF);
+        return Void();
+    }
+    _hidl_cb(Result::OK, mode);
+    return Void();
+}
+
+Return<Result> PrimaryDevice::setTtyMode(IPrimaryDevice::TtyMode mode) {
+    const char* modeStr = convertTtyModeFromHIDL(mode);
+    if (modeStr == nullptr) {
+        ALOGW("Can not set an invalid TTY value: %d", mode);
+        return Result::INVALID_ARGUMENTS;
+    }
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_TTY_MODE, modeStr);
+}
+
+Return<void> PrimaryDevice::getHacEnabled(getHacEnabled_cb _hidl_cb) {
+    bool enabled;
+    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_HAC, &enabled);
+    _hidl_cb(retval, enabled);
+    return Void();
+}
+
+Return<Result> PrimaryDevice::setHacEnabled(bool enabled) {
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_HAC, enabled);
+}
+
+#if MAJOR_VERSION >= 4
+Return<Result> PrimaryDevice::setBtScoHeadsetDebugName(const hidl_string& name) {
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_BT_SCO_HEADSET_NAME, name.c_str());
+}
+Return<void> PrimaryDevice::getBtHfpEnabled(getBtHfpEnabled_cb _hidl_cb) {
+    bool enabled;
+    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_HFP_ENABLE, &enabled);
+    _hidl_cb(retval, enabled);
+    return Void();
+}
+Return<Result> PrimaryDevice::setBtHfpEnabled(bool enabled) {
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_ENABLE, enabled);
+}
+Return<Result> PrimaryDevice::setBtHfpSampleRate(uint32_t sampleRateHz) {
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_SET_SAMPLING_RATE, int(sampleRateHz));
+}
+Return<Result> PrimaryDevice::setBtHfpVolume(float volume) {
+    if (!isGainNormalized(volume)) {
+        ALOGW("Can not set BT HFP volume (%f) outside [0,1]", volume);
+        return Result::INVALID_ARGUMENTS;
+    }
+    // Map the normalized volume onto the range of [0, 15]
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_VOLUME,
+                             static_cast<int>(std::round(volume * 15)));
+}
+Return<Result> PrimaryDevice::updateRotation(IPrimaryDevice::Rotation rotation) {
+    // legacy API expects the rotation in degree
+    return mDevice->setParam(AUDIO_PARAMETER_KEY_ROTATION, int(rotation) * 90);
+}
+#endif
+
+Return<void> PrimaryDevice::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mDevice->debug(fd, options);
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/Stream.cpp b/audio/core/all-versions/default/Stream.cpp
new file mode 100644
index 0000000..b995657
--- /dev/null
+++ b/audio/core/all-versions/default/Stream.cpp
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamHAL"
+
+#include "core/default/Stream.h"
+#include "common/all-versions/default/EffectMap.h"
+#include "core/default/Conversions.h"
+#include "core/default/Util.h"
+
+#include <inttypes.h>
+
+#include <android/log.h>
+#include <hardware/audio.h>
+#include <hardware/audio_effect.h>
+#include <media/TypeConverter.h>
+#include <utils/SortedVector.h>
+#include <utils/Vector.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+Stream::Stream(audio_stream_t* stream) : mStream(stream) {}
+
+Stream::~Stream() {
+    mStream = nullptr;
+}
+
+// static
+Result Stream::analyzeStatus(const char* funcName, int status) {
+    return util::analyzeStatus("stream", funcName, status);
+}
+
+// static
+Result Stream::analyzeStatus(const char* funcName, int status,
+                             const std::vector<int>& ignoreErrors) {
+    return util::analyzeStatus("stream", funcName, status, ignoreErrors);
+}
+
+char* Stream::halGetParameters(const char* keys) {
+    return mStream->get_parameters(mStream, keys);
+}
+
+int Stream::halSetParameters(const char* keysAndValues) {
+    return mStream->set_parameters(mStream, keysAndValues);
+}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
+Return<uint64_t> Stream::getFrameSize() {
+    // Needs to be implemented by interface subclasses. But can't be declared as pure virtual,
+    // since interface subclasses implementation do not inherit from this class.
+    LOG_ALWAYS_FATAL("Stream::getFrameSize is pure abstract");
+    return uint64_t{};
+}
+
+Return<uint64_t> Stream::getFrameCount() {
+    int halFrameCount;
+    Result retval = getParam(AudioParameter::keyFrameCount, &halFrameCount);
+    return retval == Result::OK ? halFrameCount : 0;
+}
+
+Return<uint64_t> Stream::getBufferSize() {
+    return mStream->get_buffer_size(mStream);
+}
+
+Return<uint32_t> Stream::getSampleRate() {
+    return mStream->get_sample_rate(mStream);
+}
+
+#if MAJOR_VERSION == 2
+Return<void> Stream::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
+    return getSupportedSampleRates(getFormat(), _hidl_cb);
+}
+Return<void> Stream::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
+    return getSupportedChannelMasks(getFormat(), _hidl_cb);
+}
+#endif
+
+Return<void> Stream::getSupportedSampleRates(AudioFormat format,
+                                             getSupportedSampleRates_cb _hidl_cb) {
+    AudioParameter context;
+    context.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), int(format));
+    String8 halListValue;
+    Result result =
+        getParam(AudioParameter::keyStreamSupportedSamplingRates, &halListValue, context);
+    hidl_vec<uint32_t> sampleRates;
+    SortedVector<uint32_t> halSampleRates;
+    if (result == Result::OK) {
+        halSampleRates =
+            samplingRatesFromString(halListValue.string(), AudioParameter::valueListSeparator);
+        sampleRates.setToExternal(halSampleRates.editArray(), halSampleRates.size());
+        // Legacy get_parameter does not return a status_t, thus can not advertise of failure.
+        // Note that this method must succeed (non empty list) if the format is supported.
+        if (sampleRates.size() == 0) {
+            result = Result::NOT_SUPPORTED;
+        }
+    }
+#if MAJOR_VERSION == 2
+    _hidl_cb(sampleRates);
+#elif MAJOR_VERSION >= 4
+    _hidl_cb(result, sampleRates);
+#endif
+    return Void();
+}
+
+Return<void> Stream::getSupportedChannelMasks(AudioFormat format,
+                                              getSupportedChannelMasks_cb _hidl_cb) {
+    AudioParameter context;
+    context.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), int(format));
+    String8 halListValue;
+    Result result = getParam(AudioParameter::keyStreamSupportedChannels, &halListValue, context);
+    hidl_vec<AudioChannelBitfield> channelMasks;
+    SortedVector<audio_channel_mask_t> halChannelMasks;
+    if (result == Result::OK) {
+        halChannelMasks =
+            channelMasksFromString(halListValue.string(), AudioParameter::valueListSeparator);
+        channelMasks.resize(halChannelMasks.size());
+        for (size_t i = 0; i < halChannelMasks.size(); ++i) {
+            channelMasks[i] = AudioChannelBitfield(halChannelMasks[i]);
+        }
+        // Legacy get_parameter does not return a status_t, thus can not advertise of failure.
+        // Note that this method must succeed (non empty list) if the format is supported.
+        if (channelMasks.size() == 0) {
+            result = Result::NOT_SUPPORTED;
+        }
+    }
+#if MAJOR_VERSION == 2
+    _hidl_cb(channelMasks);
+#elif MAJOR_VERSION >= 4
+    _hidl_cb(result, channelMasks);
+#endif
+    return Void();
+}
+
+Return<Result> Stream::setSampleRate(uint32_t sampleRateHz) {
+    return setParam(AudioParameter::keySamplingRate, static_cast<int>(sampleRateHz));
+}
+
+Return<AudioChannelBitfield> Stream::getChannelMask() {
+    return AudioChannelBitfield(mStream->get_channels(mStream));
+}
+
+Return<Result> Stream::setChannelMask(AudioChannelBitfield mask) {
+    return setParam(AudioParameter::keyChannels, static_cast<int>(mask));
+}
+
+Return<AudioFormat> Stream::getFormat() {
+    return AudioFormat(mStream->get_format(mStream));
+}
+
+Return<void> Stream::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
+    String8 halListValue;
+    Result result = getParam(AudioParameter::keyStreamSupportedFormats, &halListValue);
+    hidl_vec<AudioFormat> formats;
+    Vector<audio_format_t> halFormats;
+    if (result == Result::OK) {
+        halFormats = formatsFromString(halListValue.string(), AudioParameter::valueListSeparator);
+        formats.resize(halFormats.size());
+        for (size_t i = 0; i < halFormats.size(); ++i) {
+            formats[i] = AudioFormat(halFormats[i]);
+        }
+    }
+    _hidl_cb(formats);
+    return Void();
+}
+
+Return<Result> Stream::setFormat(AudioFormat format) {
+    return setParam(AudioParameter::keyFormat, static_cast<int>(format));
+}
+
+Return<void> Stream::getAudioProperties(getAudioProperties_cb _hidl_cb) {
+    uint32_t halSampleRate = mStream->get_sample_rate(mStream);
+    audio_channel_mask_t halMask = mStream->get_channels(mStream);
+    audio_format_t halFormat = mStream->get_format(mStream);
+    _hidl_cb(halSampleRate, AudioChannelBitfield(halMask), AudioFormat(halFormat));
+    return Void();
+}
+
+Return<Result> Stream::addEffect(uint64_t effectId) {
+    effect_handle_t halEffect = EffectMap::getInstance().get(effectId);
+    if (halEffect != NULL) {
+        return analyzeStatus("add_audio_effect", mStream->add_audio_effect(mStream, halEffect));
+    } else {
+        ALOGW("Invalid effect ID passed from client: %" PRIu64, effectId);
+        return Result::INVALID_ARGUMENTS;
+    }
+}
+
+Return<Result> Stream::removeEffect(uint64_t effectId) {
+    effect_handle_t halEffect = EffectMap::getInstance().get(effectId);
+    if (halEffect != NULL) {
+        return analyzeStatus("remove_audio_effect",
+                             mStream->remove_audio_effect(mStream, halEffect));
+    } else {
+        ALOGW("Invalid effect ID passed from client: %" PRIu64, effectId);
+        return Result::INVALID_ARGUMENTS;
+    }
+}
+
+Return<Result> Stream::standby() {
+    return analyzeStatus("standby", mStream->standby(mStream));
+}
+
+Return<Result> Stream::setHwAvSync(uint32_t hwAvSync) {
+    return setParam(AudioParameter::keyStreamHwAvSync, static_cast<int>(hwAvSync));
+}
+
+#if MAJOR_VERSION == 2
+Return<AudioDevice> Stream::getDevice() {
+    int device = 0;
+    Result retval = getParam(AudioParameter::keyRouting, &device);
+    return retval == Result::OK ? static_cast<AudioDevice>(device) : AudioDevice::NONE;
+}
+
+Return<Result> Stream::setDevice(const DeviceAddress& address) {
+    return setParam(AudioParameter::keyRouting, address);
+}
+
+Return<void> Stream::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
+    getParametersImpl({} /* context */, keys, _hidl_cb);
+    return Void();
+}
+
+Return<Result> Stream::setParameters(const hidl_vec<ParameterValue>& parameters) {
+    return setParametersImpl({} /* context */, parameters);
+}
+
+Return<Result> Stream::setConnectedState(const DeviceAddress& address, bool connected) {
+    return setParam(
+        connected ? AudioParameter::keyStreamConnect : AudioParameter::keyStreamDisconnect,
+        address);
+}
+#elif MAJOR_VERSION >= 4
+Return<void> Stream::getDevices(getDevices_cb _hidl_cb) {
+    int device = 0;
+    Result retval = getParam(AudioParameter::keyRouting, &device);
+    hidl_vec<DeviceAddress> devices;
+    if (retval == Result::OK) {
+        devices.resize(1);
+        devices[0].device = static_cast<AudioDevice>(device);
+    }
+    _hidl_cb(retval, devices);
+    return Void();
+}
+
+Return<Result> Stream::setDevices(const hidl_vec<DeviceAddress>& devices) {
+    // FIXME: can the legacy API set multiple device with address ?
+    if (devices.size() > 1) {
+        return Result::NOT_SUPPORTED;
+    }
+    DeviceAddress address;
+    if (devices.size() == 1) {
+        address = devices[0];
+    } else {
+        address.device = AudioDevice::NONE;
+    }
+    return setParam(AudioParameter::keyRouting, address);
+}
+Return<void> Stream::getParameters(const hidl_vec<ParameterValue>& context,
+                                   const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
+    getParametersImpl(context, keys, _hidl_cb);
+    return Void();
+}
+
+Return<Result> Stream::setParameters(const hidl_vec<ParameterValue>& context,
+                                     const hidl_vec<ParameterValue>& parameters) {
+    return setParametersImpl(context, parameters);
+}
+#endif
+
+Return<Result> Stream::start() {
+    return Result::NOT_SUPPORTED;
+}
+
+Return<Result> Stream::stop() {
+    return Result::NOT_SUPPORTED;
+}
+
+Return<void> Stream::createMmapBuffer(int32_t minSizeFrames __unused,
+                                      createMmapBuffer_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    MmapBufferInfo info;
+    _hidl_cb(retval, info);
+    return Void();
+}
+
+Return<void> Stream::getMmapPosition(getMmapPosition_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    MmapPosition position;
+    _hidl_cb(retval, position);
+    return Void();
+}
+
+Return<Result> Stream::close() {
+    return Result::NOT_SUPPORTED;
+}
+
+Return<void> Stream::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
+    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
+        analyzeStatus("dump", mStream->dump(mStream, fd->data[0]));
+    }
+    return Void();
+}
+
+#if MAJOR_VERSION == 2
+Return<void> Stream::debugDump(const hidl_handle& fd) {
+    return debug(fd, {} /* options */);
+}
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/StreamIn.cpp b/audio/core/all-versions/default/StreamIn.cpp
new file mode 100644
index 0000000..daba6f7
--- /dev/null
+++ b/audio/core/all-versions/default/StreamIn.cpp
@@ -0,0 +1,524 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamInHAL"
+
+#include "core/default/StreamIn.h"
+#include "core/default/Conversions.h"
+#include "core/default/Util.h"
+
+//#define LOG_NDEBUG 0
+#define ATRACE_TAG ATRACE_TAG_AUDIO
+
+#include <android/log.h>
+#include <hardware/audio.h>
+#include <utils/Trace.h>
+#include <memory>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+namespace {
+
+class ReadThread : public Thread {
+   public:
+    // ReadThread's lifespan never exceeds StreamIn's lifespan.
+    ReadThread(std::atomic<bool>* stop, audio_stream_in_t* stream, StreamIn::CommandMQ* commandMQ,
+               StreamIn::DataMQ* dataMQ, StreamIn::StatusMQ* statusMQ, EventFlag* efGroup)
+        : Thread(false /*canCallJava*/),
+          mStop(stop),
+          mStream(stream),
+          mCommandMQ(commandMQ),
+          mDataMQ(dataMQ),
+          mStatusMQ(statusMQ),
+          mEfGroup(efGroup),
+          mBuffer(nullptr) {}
+    bool init() {
+        mBuffer.reset(new (std::nothrow) uint8_t[mDataMQ->getQuantumCount()]);
+        return mBuffer != nullptr;
+    }
+    virtual ~ReadThread() {}
+
+   private:
+    std::atomic<bool>* mStop;
+    audio_stream_in_t* mStream;
+    StreamIn::CommandMQ* mCommandMQ;
+    StreamIn::DataMQ* mDataMQ;
+    StreamIn::StatusMQ* mStatusMQ;
+    EventFlag* mEfGroup;
+    std::unique_ptr<uint8_t[]> mBuffer;
+    IStreamIn::ReadParameters mParameters;
+    IStreamIn::ReadStatus mStatus;
+
+    bool threadLoop() override;
+
+    void doGetCapturePosition();
+    void doRead();
+};
+
+void ReadThread::doRead() {
+    size_t availableToWrite = mDataMQ->availableToWrite();
+    size_t requestedToRead = mParameters.params.read;
+    if (requestedToRead > availableToWrite) {
+        ALOGW(
+            "truncating read data from %d to %d due to insufficient data queue "
+            "space",
+            (int32_t)requestedToRead, (int32_t)availableToWrite);
+        requestedToRead = availableToWrite;
+    }
+    ssize_t readResult = mStream->read(mStream, &mBuffer[0], requestedToRead);
+    mStatus.retval = Result::OK;
+    if (readResult >= 0) {
+        mStatus.reply.read = readResult;
+        if (!mDataMQ->write(&mBuffer[0], readResult)) {
+            ALOGW("data message queue write failed");
+        }
+    } else {
+        mStatus.retval = Stream::analyzeStatus("read", readResult);
+    }
+}
+
+void ReadThread::doGetCapturePosition() {
+    mStatus.retval = StreamIn::getCapturePositionImpl(
+        mStream, &mStatus.reply.capturePosition.frames, &mStatus.reply.capturePosition.time);
+}
+
+bool ReadThread::threadLoop() {
+    // This implementation doesn't return control back to the Thread until it
+    // decides to stop,
+    // as the Thread uses mutexes, and this can lead to priority inversion.
+    while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
+        uint32_t efState = 0;
+        mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL), &efState);
+        if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL))) {
+            continue;  // Nothing to do.
+        }
+        if (!mCommandMQ->read(&mParameters)) {
+            continue;  // Nothing to do.
+        }
+        mStatus.replyTo = mParameters.command;
+        switch (mParameters.command) {
+            case IStreamIn::ReadCommand::READ:
+                doRead();
+                break;
+            case IStreamIn::ReadCommand::GET_CAPTURE_POSITION:
+                doGetCapturePosition();
+                break;
+            default:
+                ALOGE("Unknown read thread command code %d", mParameters.command);
+                mStatus.retval = Result::NOT_SUPPORTED;
+                break;
+        }
+        if (!mStatusMQ->write(&mStatus)) {
+            ALOGW("status message queue write failed");
+        }
+        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
+    }
+
+    return false;
+}
+
+}  // namespace
+
+StreamIn::StreamIn(const sp<Device>& device, audio_stream_in_t* stream)
+    : mIsClosed(false),
+      mDevice(device),
+      mStream(stream),
+      mStreamCommon(new Stream(&stream->common)),
+      mStreamMmap(new StreamMmap<audio_stream_in_t>(stream)),
+      mEfGroup(nullptr),
+      mStopReadThread(false) {}
+
+StreamIn::~StreamIn() {
+    ATRACE_CALL();
+    close();
+    if (mReadThread.get()) {
+        ATRACE_NAME("mReadThread->join");
+        status_t status = mReadThread->join();
+        ALOGE_IF(status, "read thread exit error: %s", strerror(-status));
+    }
+    if (mEfGroup) {
+        status_t status = EventFlag::deleteEventFlag(&mEfGroup);
+        ALOGE_IF(status, "read MQ event flag deletion error: %s", strerror(-status));
+    }
+    mDevice->closeInputStream(mStream);
+    mStream = nullptr;
+}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
+Return<uint64_t> StreamIn::getFrameSize() {
+    return audio_stream_in_frame_size(mStream);
+}
+
+Return<uint64_t> StreamIn::getFrameCount() {
+    return mStreamCommon->getFrameCount();
+}
+
+Return<uint64_t> StreamIn::getBufferSize() {
+    return mStreamCommon->getBufferSize();
+}
+
+Return<uint32_t> StreamIn::getSampleRate() {
+    return mStreamCommon->getSampleRate();
+}
+
+#if MAJOR_VERSION == 2
+Return<void> StreamIn::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
+    return mStreamCommon->getSupportedChannelMasks(_hidl_cb);
+}
+Return<void> StreamIn::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
+    return mStreamCommon->getSupportedSampleRates(_hidl_cb);
+}
+#endif
+
+Return<void> StreamIn::getSupportedChannelMasks(AudioFormat format,
+                                                getSupportedChannelMasks_cb _hidl_cb) {
+    return mStreamCommon->getSupportedChannelMasks(format, _hidl_cb);
+}
+Return<void> StreamIn::getSupportedSampleRates(AudioFormat format,
+                                               getSupportedSampleRates_cb _hidl_cb) {
+    return mStreamCommon->getSupportedSampleRates(format, _hidl_cb);
+}
+
+Return<Result> StreamIn::setSampleRate(uint32_t sampleRateHz) {
+    return mStreamCommon->setSampleRate(sampleRateHz);
+}
+
+Return<AudioChannelBitfield> StreamIn::getChannelMask() {
+    return mStreamCommon->getChannelMask();
+}
+
+Return<Result> StreamIn::setChannelMask(AudioChannelBitfield mask) {
+    return mStreamCommon->setChannelMask(mask);
+}
+
+Return<AudioFormat> StreamIn::getFormat() {
+    return mStreamCommon->getFormat();
+}
+
+Return<void> StreamIn::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
+    return mStreamCommon->getSupportedFormats(_hidl_cb);
+}
+
+Return<Result> StreamIn::setFormat(AudioFormat format) {
+    return mStreamCommon->setFormat(format);
+}
+
+Return<void> StreamIn::getAudioProperties(getAudioProperties_cb _hidl_cb) {
+    return mStreamCommon->getAudioProperties(_hidl_cb);
+}
+
+Return<Result> StreamIn::addEffect(uint64_t effectId) {
+    return mStreamCommon->addEffect(effectId);
+}
+
+Return<Result> StreamIn::removeEffect(uint64_t effectId) {
+    return mStreamCommon->removeEffect(effectId);
+}
+
+Return<Result> StreamIn::standby() {
+    return mStreamCommon->standby();
+}
+
+Return<Result> StreamIn::setHwAvSync(uint32_t hwAvSync) {
+    return mStreamCommon->setHwAvSync(hwAvSync);
+}
+
+#if MAJOR_VERSION == 2
+Return<Result> StreamIn::setConnectedState(const DeviceAddress& address, bool connected) {
+    return mStreamCommon->setConnectedState(address, connected);
+}
+
+Return<AudioDevice> StreamIn::getDevice() {
+    return mStreamCommon->getDevice();
+}
+
+Return<Result> StreamIn::setDevice(const DeviceAddress& address) {
+    return mStreamCommon->setDevice(address);
+}
+
+Return<void> StreamIn::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
+    return mStreamCommon->getParameters(keys, _hidl_cb);
+}
+
+Return<Result> StreamIn::setParameters(const hidl_vec<ParameterValue>& parameters) {
+    return mStreamCommon->setParameters(parameters);
+}
+
+Return<void> StreamIn::debugDump(const hidl_handle& fd) {
+    return mStreamCommon->debugDump(fd);
+}
+#elif MAJOR_VERSION >= 4
+Return<void> StreamIn::getDevices(getDevices_cb _hidl_cb) {
+    return mStreamCommon->getDevices(_hidl_cb);
+}
+
+Return<Result> StreamIn::setDevices(const hidl_vec<DeviceAddress>& devices) {
+    return mStreamCommon->setDevices(devices);
+}
+Return<void> StreamIn::getParameters(const hidl_vec<ParameterValue>& context,
+                                     const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
+    return mStreamCommon->getParameters(context, keys, _hidl_cb);
+}
+
+Return<Result> StreamIn::setParameters(const hidl_vec<ParameterValue>& context,
+                                       const hidl_vec<ParameterValue>& parameters) {
+    return mStreamCommon->setParameters(context, parameters);
+}
+#endif
+
+Return<Result> StreamIn::start() {
+    return mStreamMmap->start();
+}
+
+Return<Result> StreamIn::stop() {
+    return mStreamMmap->stop();
+}
+
+Return<void> StreamIn::createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) {
+    return mStreamMmap->createMmapBuffer(minSizeFrames, audio_stream_in_frame_size(mStream),
+                                         _hidl_cb);
+}
+
+Return<void> StreamIn::getMmapPosition(getMmapPosition_cb _hidl_cb) {
+    return mStreamMmap->getMmapPosition(_hidl_cb);
+}
+
+Return<Result> StreamIn::close() {
+    if (mIsClosed) return Result::INVALID_STATE;
+    mIsClosed = true;
+    if (mReadThread.get()) {
+        mStopReadThread.store(true, std::memory_order_release);
+    }
+    if (mEfGroup) {
+        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+    }
+    return Result::OK;
+}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IStreamIn follow.
+Return<void> StreamIn::getAudioSource(getAudioSource_cb _hidl_cb) {
+    int halSource;
+    Result retval = mStreamCommon->getParam(AudioParameter::keyInputSource, &halSource);
+    AudioSource source(AudioSource::DEFAULT);
+    if (retval == Result::OK) {
+        source = AudioSource(halSource);
+    }
+    _hidl_cb(retval, source);
+    return Void();
+}
+
+Return<Result> StreamIn::setGain(float gain) {
+    if (!isGainNormalized(gain)) {
+        ALOGW("Can not set a stream input gain (%f) outside [0,1]", gain);
+        return Result::INVALID_ARGUMENTS;
+    }
+    return Stream::analyzeStatus("set_gain", mStream->set_gain(mStream, gain));
+}
+
+Return<void> StreamIn::prepareForReading(uint32_t frameSize, uint32_t framesCount,
+                                         prepareForReading_cb _hidl_cb) {
+    status_t status;
+    ThreadInfo threadInfo = {0, 0};
+
+    // Wrap the _hidl_cb to return an error
+    auto sendError = [&threadInfo, &_hidl_cb](Result result) {
+        _hidl_cb(result, CommandMQ::Descriptor(), DataMQ::Descriptor(), StatusMQ::Descriptor(),
+                 threadInfo);
+    };
+
+    // Create message queues.
+    if (mDataMQ) {
+        ALOGE("the client attempts to call prepareForReading twice");
+        sendError(Result::INVALID_STATE);
+        return Void();
+    }
+    std::unique_ptr<CommandMQ> tempCommandMQ(new CommandMQ(1));
+
+    // Check frameSize and framesCount
+    if (frameSize == 0 || framesCount == 0) {
+        ALOGE("Null frameSize (%u) or framesCount (%u)", frameSize, framesCount);
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+
+    if (frameSize > Stream::MAX_BUFFER_SIZE / framesCount) {
+        ALOGE("Buffer too big: %u*%u bytes > MAX_BUFFER_SIZE (%u)", frameSize, framesCount,
+              Stream::MAX_BUFFER_SIZE);
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    std::unique_ptr<DataMQ> tempDataMQ(new DataMQ(frameSize * framesCount, true /* EventFlag */));
+
+    std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1));
+    if (!tempCommandMQ->isValid() || !tempDataMQ->isValid() || !tempStatusMQ->isValid()) {
+        ALOGE_IF(!tempCommandMQ->isValid(), "command MQ is invalid");
+        ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
+        ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    EventFlag* tempRawEfGroup{};
+    status = EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &tempRawEfGroup);
+    std::unique_ptr<EventFlag, void (*)(EventFlag*)> tempElfGroup(
+        tempRawEfGroup, [](auto* ef) { EventFlag::deleteEventFlag(&ef); });
+    if (status != OK || !tempElfGroup) {
+        ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+
+    // Create and launch the thread.
+    auto tempReadThread =
+        std::make_unique<ReadThread>(&mStopReadThread, mStream, tempCommandMQ.get(),
+                                     tempDataMQ.get(), tempStatusMQ.get(), tempElfGroup.get());
+    if (!tempReadThread->init()) {
+        ALOGW("failed to start reader thread: %s", strerror(-status));
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    status = tempReadThread->run("reader", PRIORITY_URGENT_AUDIO);
+    if (status != OK) {
+        ALOGW("failed to start reader thread: %s", strerror(-status));
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+
+    mCommandMQ = std::move(tempCommandMQ);
+    mDataMQ = std::move(tempDataMQ);
+    mStatusMQ = std::move(tempStatusMQ);
+    mReadThread = tempReadThread.release();
+    mEfGroup = tempElfGroup.release();
+    threadInfo.pid = getpid();
+    threadInfo.tid = mReadThread->getTid();
+    _hidl_cb(Result::OK, *mCommandMQ->getDesc(), *mDataMQ->getDesc(), *mStatusMQ->getDesc(),
+             threadInfo);
+    return Void();
+}
+
+Return<uint32_t> StreamIn::getInputFramesLost() {
+    return mStream->get_input_frames_lost(mStream);
+}
+
+// static
+Result StreamIn::getCapturePositionImpl(audio_stream_in_t* stream, uint64_t* frames,
+                                        uint64_t* time) {
+    // HAL may have a stub function, always returning ENOSYS, don't
+    // spam the log in this case.
+    static const std::vector<int> ignoredErrors{ENOSYS};
+    Result retval(Result::NOT_SUPPORTED);
+    if (stream->get_capture_position == NULL) return retval;
+    int64_t halFrames, halTime;
+    retval = Stream::analyzeStatus("get_capture_position",
+                                   stream->get_capture_position(stream, &halFrames, &halTime),
+                                   ignoredErrors);
+    if (retval == Result::OK) {
+        *frames = halFrames;
+        *time = halTime;
+    }
+    return retval;
+};
+
+Return<void> StreamIn::getCapturePosition(getCapturePosition_cb _hidl_cb) {
+    uint64_t frames = 0, time = 0;
+    Result retval = getCapturePositionImpl(mStream, &frames, &time);
+    _hidl_cb(retval, frames, time);
+    return Void();
+}
+
+Return<void> StreamIn::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mStreamCommon->debug(fd, options);
+}
+
+#if MAJOR_VERSION >= 4
+Return<void> StreamIn::updateSinkMetadata(const SinkMetadata& sinkMetadata) {
+    if (mStream->update_sink_metadata == nullptr) {
+        return Void();  // not supported by the HAL
+    }
+    std::vector<record_track_metadata> halTracks;
+    halTracks.reserve(sinkMetadata.tracks.size());
+    for (auto& metadata : sinkMetadata.tracks) {
+        record_track_metadata halTrackMetadata = {
+            .source = static_cast<audio_source_t>(metadata.source), .gain = metadata.gain};
+#if MAJOR_VERSION >= 5
+        if (metadata.destination.getDiscriminator() ==
+            RecordTrackMetadata::Destination::hidl_discriminator::device) {
+            halTrackMetadata.dest_device =
+                static_cast<audio_devices_t>(metadata.destination.device().device);
+            strncpy(halTrackMetadata.dest_device_address,
+                    deviceAddressToHal(metadata.destination.device()).c_str(),
+                    AUDIO_DEVICE_MAX_ADDRESS_LEN);
+        }
+#endif
+        halTracks.push_back(halTrackMetadata);
+    }
+    const sink_metadata_t halMetadata = {
+        .track_count = halTracks.size(),
+        .tracks = halTracks.data(),
+    };
+    mStream->update_sink_metadata(mStream, &halMetadata);
+    return Void();
+}
+
+Return<void> StreamIn::getActiveMicrophones(getActiveMicrophones_cb _hidl_cb) {
+    Result retval = Result::NOT_SUPPORTED;
+    size_t actual_mics = AUDIO_MICROPHONE_MAX_COUNT;
+    audio_microphone_characteristic_t mic_array[AUDIO_MICROPHONE_MAX_COUNT];
+
+    hidl_vec<MicrophoneInfo> microphones;
+    if (mStream->get_active_microphones != NULL &&
+        mStream->get_active_microphones(mStream, &mic_array[0], &actual_mics) == 0) {
+        microphones.resize(actual_mics);
+        for (size_t i = 0; i < actual_mics; ++i) {
+            halToMicrophoneCharacteristics(&microphones[i], mic_array[i]);
+        }
+        retval = Result::OK;
+    }
+
+    _hidl_cb(retval, microphones);
+    return Void();
+}
+#endif
+
+#if MAJOR_VERSION >= 5
+Return<Result> StreamIn::setMicrophoneDirection(MicrophoneDirection direction) {
+    if (mStream->set_microphone_direction == nullptr) {
+        return Result::NOT_SUPPORTED;
+    }
+    return Stream::analyzeStatus(
+            "set_microphone_direction",
+            mStream->set_microphone_direction(
+                    mStream, static_cast<audio_microphone_direction_t>(direction)));
+}
+
+Return<Result> StreamIn::setMicrophoneFieldDimension(float zoom) {
+    if (mStream->set_microphone_field_dimension == nullptr) {
+        return Result::NOT_SUPPORTED;
+    }
+    return Stream::analyzeStatus("set_microphone_field_dimension",
+                                 mStream->set_microphone_field_dimension(mStream, zoom));
+}
+
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/StreamOut.cpp b/audio/core/all-versions/default/StreamOut.cpp
new file mode 100644
index 0000000..82cc408
--- /dev/null
+++ b/audio/core/all-versions/default/StreamOut.cpp
@@ -0,0 +1,578 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamOutHAL"
+
+#include "core/default/StreamOut.h"
+#include "core/default/Util.h"
+
+//#define LOG_NDEBUG 0
+#define ATRACE_TAG ATRACE_TAG_AUDIO
+
+#include <memory>
+
+#include <android/log.h>
+#include <hardware/audio.h>
+#include <utils/Trace.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+namespace {
+
+class WriteThread : public Thread {
+   public:
+    // WriteThread's lifespan never exceeds StreamOut's lifespan.
+    WriteThread(std::atomic<bool>* stop, audio_stream_out_t* stream,
+                StreamOut::CommandMQ* commandMQ, StreamOut::DataMQ* dataMQ,
+                StreamOut::StatusMQ* statusMQ, EventFlag* efGroup)
+        : Thread(false /*canCallJava*/),
+          mStop(stop),
+          mStream(stream),
+          mCommandMQ(commandMQ),
+          mDataMQ(dataMQ),
+          mStatusMQ(statusMQ),
+          mEfGroup(efGroup),
+          mBuffer(nullptr) {}
+    bool init() {
+        mBuffer.reset(new (std::nothrow) uint8_t[mDataMQ->getQuantumCount()]);
+        return mBuffer != nullptr;
+    }
+    virtual ~WriteThread() {}
+
+   private:
+    std::atomic<bool>* mStop;
+    audio_stream_out_t* mStream;
+    StreamOut::CommandMQ* mCommandMQ;
+    StreamOut::DataMQ* mDataMQ;
+    StreamOut::StatusMQ* mStatusMQ;
+    EventFlag* mEfGroup;
+    std::unique_ptr<uint8_t[]> mBuffer;
+    IStreamOut::WriteStatus mStatus;
+
+    bool threadLoop() override;
+
+    void doGetLatency();
+    void doGetPresentationPosition();
+    void doWrite();
+};
+
+void WriteThread::doWrite() {
+    const size_t availToRead = mDataMQ->availableToRead();
+    mStatus.retval = Result::OK;
+    mStatus.reply.written = 0;
+    if (mDataMQ->read(&mBuffer[0], availToRead)) {
+        ssize_t writeResult = mStream->write(mStream, &mBuffer[0], availToRead);
+        if (writeResult >= 0) {
+            mStatus.reply.written = writeResult;
+        } else {
+            mStatus.retval = Stream::analyzeStatus("write", writeResult);
+        }
+    }
+}
+
+void WriteThread::doGetPresentationPosition() {
+    mStatus.retval =
+        StreamOut::getPresentationPositionImpl(mStream, &mStatus.reply.presentationPosition.frames,
+                                               &mStatus.reply.presentationPosition.timeStamp);
+}
+
+void WriteThread::doGetLatency() {
+    mStatus.retval = Result::OK;
+    mStatus.reply.latencyMs = mStream->get_latency(mStream);
+}
+
+bool WriteThread::threadLoop() {
+    // This implementation doesn't return control back to the Thread until it
+    // decides to stop,
+    // as the Thread uses mutexes, and this can lead to priority inversion.
+    while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
+        uint32_t efState = 0;
+        mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
+        if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY))) {
+            continue;  // Nothing to do.
+        }
+        if (!mCommandMQ->read(&mStatus.replyTo)) {
+            continue;  // Nothing to do.
+        }
+        switch (mStatus.replyTo) {
+            case IStreamOut::WriteCommand::WRITE:
+                doWrite();
+                break;
+            case IStreamOut::WriteCommand::GET_PRESENTATION_POSITION:
+                doGetPresentationPosition();
+                break;
+            case IStreamOut::WriteCommand::GET_LATENCY:
+                doGetLatency();
+                break;
+            default:
+                ALOGE("Unknown write thread command code %d", mStatus.replyTo);
+                mStatus.retval = Result::NOT_SUPPORTED;
+                break;
+        }
+        if (!mStatusMQ->write(&mStatus)) {
+            ALOGE("status message queue write failed");
+        }
+        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+    }
+
+    return false;
+}
+
+}  // namespace
+
+StreamOut::StreamOut(const sp<Device>& device, audio_stream_out_t* stream)
+    : mIsClosed(false),
+      mDevice(device),
+      mStream(stream),
+      mStreamCommon(new Stream(&stream->common)),
+      mStreamMmap(new StreamMmap<audio_stream_out_t>(stream)),
+      mEfGroup(nullptr),
+      mStopWriteThread(false) {}
+
+StreamOut::~StreamOut() {
+    ATRACE_CALL();
+    close();
+    if (mWriteThread.get()) {
+        ATRACE_NAME("mWriteThread->join");
+        status_t status = mWriteThread->join();
+        ALOGE_IF(status, "write thread exit error: %s", strerror(-status));
+    }
+    if (mEfGroup) {
+        status_t status = EventFlag::deleteEventFlag(&mEfGroup);
+        ALOGE_IF(status, "write MQ event flag deletion error: %s", strerror(-status));
+    }
+    mCallback.clear();
+    mDevice->closeOutputStream(mStream);
+    // Closing the output stream in the HAL waits for the callback to finish,
+    // and joins the callback thread. Thus is it guaranteed that the callback
+    // thread will not be accessing our object anymore.
+    mStream = nullptr;
+}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
+Return<uint64_t> StreamOut::getFrameSize() {
+    return audio_stream_out_frame_size(mStream);
+}
+
+Return<uint64_t> StreamOut::getFrameCount() {
+    return mStreamCommon->getFrameCount();
+}
+
+Return<uint64_t> StreamOut::getBufferSize() {
+    return mStreamCommon->getBufferSize();
+}
+
+Return<uint32_t> StreamOut::getSampleRate() {
+    return mStreamCommon->getSampleRate();
+}
+
+#if MAJOR_VERSION == 2
+Return<void> StreamOut::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
+    return mStreamCommon->getSupportedChannelMasks(_hidl_cb);
+}
+Return<void> StreamOut::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
+    return mStreamCommon->getSupportedSampleRates(_hidl_cb);
+}
+#endif
+
+Return<void> StreamOut::getSupportedChannelMasks(AudioFormat format,
+                                                 getSupportedChannelMasks_cb _hidl_cb) {
+    return mStreamCommon->getSupportedChannelMasks(format, _hidl_cb);
+}
+Return<void> StreamOut::getSupportedSampleRates(AudioFormat format,
+                                                getSupportedSampleRates_cb _hidl_cb) {
+    return mStreamCommon->getSupportedSampleRates(format, _hidl_cb);
+}
+
+Return<Result> StreamOut::setSampleRate(uint32_t sampleRateHz) {
+    return mStreamCommon->setSampleRate(sampleRateHz);
+}
+
+Return<AudioChannelBitfield> StreamOut::getChannelMask() {
+    return mStreamCommon->getChannelMask();
+}
+
+Return<Result> StreamOut::setChannelMask(AudioChannelBitfield mask) {
+    return mStreamCommon->setChannelMask(mask);
+}
+
+Return<AudioFormat> StreamOut::getFormat() {
+    return mStreamCommon->getFormat();
+}
+
+Return<void> StreamOut::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
+    return mStreamCommon->getSupportedFormats(_hidl_cb);
+}
+
+Return<Result> StreamOut::setFormat(AudioFormat format) {
+    return mStreamCommon->setFormat(format);
+}
+
+Return<void> StreamOut::getAudioProperties(getAudioProperties_cb _hidl_cb) {
+    return mStreamCommon->getAudioProperties(_hidl_cb);
+}
+
+Return<Result> StreamOut::addEffect(uint64_t effectId) {
+    return mStreamCommon->addEffect(effectId);
+}
+
+Return<Result> StreamOut::removeEffect(uint64_t effectId) {
+    return mStreamCommon->removeEffect(effectId);
+}
+
+Return<Result> StreamOut::standby() {
+    return mStreamCommon->standby();
+}
+
+Return<Result> StreamOut::setHwAvSync(uint32_t hwAvSync) {
+    return mStreamCommon->setHwAvSync(hwAvSync);
+}
+
+#if MAJOR_VERSION == 2
+Return<Result> StreamOut::setConnectedState(const DeviceAddress& address, bool connected) {
+    return mStreamCommon->setConnectedState(address, connected);
+}
+
+Return<AudioDevice> StreamOut::getDevice() {
+    return mStreamCommon->getDevice();
+}
+
+Return<Result> StreamOut::setDevice(const DeviceAddress& address) {
+    return mStreamCommon->setDevice(address);
+}
+
+Return<void> StreamOut::getParameters(const hidl_vec<hidl_string>& keys,
+                                      getParameters_cb _hidl_cb) {
+    return mStreamCommon->getParameters(keys, _hidl_cb);
+}
+
+Return<Result> StreamOut::setParameters(const hidl_vec<ParameterValue>& parameters) {
+    return mStreamCommon->setParameters(parameters);
+}
+
+Return<void> StreamOut::debugDump(const hidl_handle& fd) {
+    return mStreamCommon->debugDump(fd);
+}
+#elif MAJOR_VERSION >= 4
+Return<void> StreamOut::getDevices(getDevices_cb _hidl_cb) {
+    return mStreamCommon->getDevices(_hidl_cb);
+}
+
+Return<Result> StreamOut::setDevices(const hidl_vec<DeviceAddress>& devices) {
+    return mStreamCommon->setDevices(devices);
+}
+Return<void> StreamOut::getParameters(const hidl_vec<ParameterValue>& context,
+                                      const hidl_vec<hidl_string>& keys,
+                                      getParameters_cb _hidl_cb) {
+    return mStreamCommon->getParameters(context, keys, _hidl_cb);
+}
+
+Return<Result> StreamOut::setParameters(const hidl_vec<ParameterValue>& context,
+                                        const hidl_vec<ParameterValue>& parameters) {
+    return mStreamCommon->setParameters(context, parameters);
+}
+#endif
+
+Return<Result> StreamOut::close() {
+    if (mIsClosed) return Result::INVALID_STATE;
+    mIsClosed = true;
+    if (mWriteThread.get()) {
+        mStopWriteThread.store(true, std::memory_order_release);
+    }
+    if (mEfGroup) {
+        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
+    }
+    return Result::OK;
+}
+
+// Methods from ::android::hardware::audio::CPP_VERSION::IStreamOut follow.
+Return<uint32_t> StreamOut::getLatency() {
+    return mStream->get_latency(mStream);
+}
+
+Return<Result> StreamOut::setVolume(float left, float right) {
+    if (mStream->set_volume == NULL) {
+        return Result::NOT_SUPPORTED;
+    }
+    if (!isGainNormalized(left)) {
+        ALOGW("Can not set a stream output volume {%f, %f} outside [0,1]", left, right);
+        return Result::INVALID_ARGUMENTS;
+    }
+    return Stream::analyzeStatus("set_volume", mStream->set_volume(mStream, left, right));
+}
+
+Return<void> StreamOut::prepareForWriting(uint32_t frameSize, uint32_t framesCount,
+                                          prepareForWriting_cb _hidl_cb) {
+    status_t status;
+    ThreadInfo threadInfo = {0, 0};
+
+    // Wrap the _hidl_cb to return an error
+    auto sendError = [&threadInfo, &_hidl_cb](Result result) {
+        _hidl_cb(result, CommandMQ::Descriptor(), DataMQ::Descriptor(), StatusMQ::Descriptor(),
+                 threadInfo);
+    };
+
+    // Create message queues.
+    if (mDataMQ) {
+        ALOGE("the client attempts to call prepareForWriting twice");
+        sendError(Result::INVALID_STATE);
+        return Void();
+    }
+    std::unique_ptr<CommandMQ> tempCommandMQ(new CommandMQ(1));
+
+    // Check frameSize and framesCount
+    if (frameSize == 0 || framesCount == 0) {
+        ALOGE("Null frameSize (%u) or framesCount (%u)", frameSize, framesCount);
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    if (frameSize > Stream::MAX_BUFFER_SIZE / framesCount) {
+        ALOGE("Buffer too big: %u*%u bytes > MAX_BUFFER_SIZE (%u)", frameSize, framesCount,
+              Stream::MAX_BUFFER_SIZE);
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    std::unique_ptr<DataMQ> tempDataMQ(new DataMQ(frameSize * framesCount, true /* EventFlag */));
+
+    std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1));
+    if (!tempCommandMQ->isValid() || !tempDataMQ->isValid() || !tempStatusMQ->isValid()) {
+        ALOGE_IF(!tempCommandMQ->isValid(), "command MQ is invalid");
+        ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
+        ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    EventFlag* tempRawEfGroup{};
+    status = EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &tempRawEfGroup);
+    std::unique_ptr<EventFlag, void (*)(EventFlag*)> tempElfGroup(
+        tempRawEfGroup, [](auto* ef) { EventFlag::deleteEventFlag(&ef); });
+    if (status != OK || !tempElfGroup) {
+        ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+
+    // Create and launch the thread.
+    auto tempWriteThread =
+        std::make_unique<WriteThread>(&mStopWriteThread, mStream, tempCommandMQ.get(),
+                                      tempDataMQ.get(), tempStatusMQ.get(), tempElfGroup.get());
+    if (!tempWriteThread->init()) {
+        ALOGW("failed to start writer thread: %s", strerror(-status));
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+    status = tempWriteThread->run("writer", PRIORITY_URGENT_AUDIO);
+    if (status != OK) {
+        ALOGW("failed to start writer thread: %s", strerror(-status));
+        sendError(Result::INVALID_ARGUMENTS);
+        return Void();
+    }
+
+    mCommandMQ = std::move(tempCommandMQ);
+    mDataMQ = std::move(tempDataMQ);
+    mStatusMQ = std::move(tempStatusMQ);
+    mWriteThread = tempWriteThread.release();
+    mEfGroup = tempElfGroup.release();
+    threadInfo.pid = getpid();
+    threadInfo.tid = mWriteThread->getTid();
+    _hidl_cb(Result::OK, *mCommandMQ->getDesc(), *mDataMQ->getDesc(), *mStatusMQ->getDesc(),
+             threadInfo);
+    return Void();
+}
+
+Return<void> StreamOut::getRenderPosition(getRenderPosition_cb _hidl_cb) {
+    uint32_t halDspFrames;
+    Result retval = Stream::analyzeStatus("get_render_position",
+                                          mStream->get_render_position(mStream, &halDspFrames));
+    _hidl_cb(retval, halDspFrames);
+    return Void();
+}
+
+Return<void> StreamOut::getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    int64_t timestampUs = 0;
+    if (mStream->get_next_write_timestamp != NULL) {
+        retval = Stream::analyzeStatus("get_next_write_timestamp",
+                                       mStream->get_next_write_timestamp(mStream, &timestampUs));
+    }
+    _hidl_cb(retval, timestampUs);
+    return Void();
+}
+
+Return<Result> StreamOut::setCallback(const sp<IStreamOutCallback>& callback) {
+    if (mStream->set_callback == NULL) return Result::NOT_SUPPORTED;
+    // Safe to pass 'this' because it is guaranteed that the callback thread
+    // is joined prior to exit from StreamOut's destructor.
+    int result = mStream->set_callback(mStream, StreamOut::asyncCallback, this);
+    if (result == 0) {
+        mCallback = callback;
+    }
+    return Stream::analyzeStatus("set_callback", result);
+}
+
+Return<Result> StreamOut::clearCallback() {
+    if (mStream->set_callback == NULL) return Result::NOT_SUPPORTED;
+    mCallback.clear();
+    return Result::OK;
+}
+
+// static
+int StreamOut::asyncCallback(stream_callback_event_t event, void*, void* cookie) {
+    // It is guaranteed that the callback thread is joined prior
+    // to exiting from StreamOut's destructor. Must *not* use sp<StreamOut>
+    // here because it can make this code the last owner of StreamOut,
+    // and an attempt to run the destructor on the callback thread
+    // will cause a deadlock in the legacy HAL code.
+    StreamOut* self = reinterpret_cast<StreamOut*>(cookie);
+    // It's correct to hold an sp<> to callback because the reference
+    // in the StreamOut instance can be cleared in the meantime. There is
+    // no difference on which thread to run IStreamOutCallback's destructor.
+    sp<IStreamOutCallback> callback = self->mCallback;
+    if (callback.get() == nullptr) return 0;
+    ALOGV("asyncCallback() event %d", event);
+    switch (event) {
+        case STREAM_CBK_EVENT_WRITE_READY:
+            callback->onWriteReady();
+            break;
+        case STREAM_CBK_EVENT_DRAIN_READY:
+            callback->onDrainReady();
+            break;
+        case STREAM_CBK_EVENT_ERROR:
+            callback->onError();
+            break;
+        default:
+            ALOGW("asyncCallback() unknown event %d", event);
+            break;
+    }
+    return 0;
+}
+
+Return<void> StreamOut::supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) {
+    _hidl_cb(mStream->pause != NULL, mStream->resume != NULL);
+    return Void();
+}
+
+Return<Result> StreamOut::pause() {
+    return mStream->pause != NULL ? Stream::analyzeStatus("pause", mStream->pause(mStream))
+                                  : Result::NOT_SUPPORTED;
+}
+
+Return<Result> StreamOut::resume() {
+    return mStream->resume != NULL ? Stream::analyzeStatus("resume", mStream->resume(mStream))
+                                   : Result::NOT_SUPPORTED;
+}
+
+Return<bool> StreamOut::supportsDrain() {
+    return mStream->drain != NULL;
+}
+
+Return<Result> StreamOut::drain(AudioDrain type) {
+    return mStream->drain != NULL
+               ? Stream::analyzeStatus(
+                     "drain", mStream->drain(mStream, static_cast<audio_drain_type_t>(type)))
+               : Result::NOT_SUPPORTED;
+}
+
+Return<Result> StreamOut::flush() {
+    return mStream->flush != NULL ? Stream::analyzeStatus("flush", mStream->flush(mStream))
+                                  : Result::NOT_SUPPORTED;
+}
+
+// static
+Result StreamOut::getPresentationPositionImpl(audio_stream_out_t* stream, uint64_t* frames,
+                                              TimeSpec* timeStamp) {
+    // Don't logspam on EINVAL--it's normal for get_presentation_position
+    // to return it sometimes. EAGAIN may be returned by A2DP audio HAL
+    // implementation. ENODATA can also be reported while the writer is
+    // continuously querying it, but the stream has been stopped.
+    static const std::vector<int> ignoredErrors{EINVAL, EAGAIN, ENODATA};
+    Result retval(Result::NOT_SUPPORTED);
+    if (stream->get_presentation_position == NULL) return retval;
+    struct timespec halTimeStamp;
+    retval = Stream::analyzeStatus("get_presentation_position",
+                                   stream->get_presentation_position(stream, frames, &halTimeStamp),
+                                   ignoredErrors);
+    if (retval == Result::OK) {
+        timeStamp->tvSec = halTimeStamp.tv_sec;
+        timeStamp->tvNSec = halTimeStamp.tv_nsec;
+    }
+    return retval;
+}
+
+Return<void> StreamOut::getPresentationPosition(getPresentationPosition_cb _hidl_cb) {
+    uint64_t frames = 0;
+    TimeSpec timeStamp = {0, 0};
+    Result retval = getPresentationPositionImpl(mStream, &frames, &timeStamp);
+    _hidl_cb(retval, frames, timeStamp);
+    return Void();
+}
+
+Return<Result> StreamOut::start() {
+    return mStreamMmap->start();
+}
+
+Return<Result> StreamOut::stop() {
+    return mStreamMmap->stop();
+}
+
+Return<void> StreamOut::createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) {
+    return mStreamMmap->createMmapBuffer(minSizeFrames, audio_stream_out_frame_size(mStream),
+                                         _hidl_cb);
+}
+
+Return<void> StreamOut::getMmapPosition(getMmapPosition_cb _hidl_cb) {
+    return mStreamMmap->getMmapPosition(_hidl_cb);
+}
+
+Return<void> StreamOut::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mStreamCommon->debug(fd, options);
+}
+
+#if MAJOR_VERSION >= 4
+Return<void> StreamOut::updateSourceMetadata(const SourceMetadata& sourceMetadata) {
+    if (mStream->update_source_metadata == nullptr) {
+        return Void();  // not supported by the HAL
+    }
+    std::vector<playback_track_metadata> halTracks;
+    halTracks.reserve(sourceMetadata.tracks.size());
+    for (auto& metadata : sourceMetadata.tracks) {
+        halTracks.push_back({
+            .usage = static_cast<audio_usage_t>(metadata.usage),
+            .content_type = static_cast<audio_content_type_t>(metadata.contentType),
+            .gain = metadata.gain,
+        });
+    }
+    const source_metadata_t halMetadata = {
+        .track_count = halTracks.size(),
+        .tracks = halTracks.data(),
+    };
+    mStream->update_source_metadata(mStream, &halMetadata);
+    return Void();
+}
+Return<Result> StreamOut::selectPresentation(int32_t /*presentationId*/, int32_t /*programId*/) {
+    return Result::NOT_SUPPORTED;  // TODO: propagate to legacy
+}
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Conversions.h b/audio/core/all-versions/default/include/core/all-versions/default/Conversions.h
deleted file mode 100644
index b38eca3..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Conversions.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <string>
-
-#include <system/audio.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-
-std::string deviceAddressToHal(const DeviceAddress& address);
-
-#ifdef AUDIO_HAL_VERSION_4_0
-bool halToMicrophoneCharacteristics(MicrophoneInfo* pDst,
-                                    const struct audio_microphone_characteristic_t& src);
-#endif
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Conversions.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/Conversions.impl.h
deleted file mode 100644
index 5828c3f..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Conversions.impl.h
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <stdio.h>
-
-#include <log/log.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-
-std::string deviceAddressToHal(const DeviceAddress& address) {
-    // HAL assumes that the address is NUL-terminated.
-    char halAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
-    memset(halAddress, 0, sizeof(halAddress));
-    uint32_t halDevice = static_cast<uint32_t>(address.device);
-    const bool isInput = (halDevice & AUDIO_DEVICE_BIT_IN) != 0;
-    if (isInput) halDevice &= ~AUDIO_DEVICE_BIT_IN;
-    if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_ALL_A2DP) != 0) ||
-        (isInput && (halDevice & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) != 0)) {
-        snprintf(halAddress, sizeof(halAddress), "%02X:%02X:%02X:%02X:%02X:%02X",
-                 address.address.mac[0], address.address.mac[1], address.address.mac[2],
-                 address.address.mac[3], address.address.mac[4], address.address.mac[5]);
-    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_IP) != 0) ||
-               (isInput && (halDevice & AUDIO_DEVICE_IN_IP) != 0)) {
-        snprintf(halAddress, sizeof(halAddress), "%d.%d.%d.%d", address.address.ipv4[0],
-                 address.address.ipv4[1], address.address.ipv4[2], address.address.ipv4[3]);
-    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_ALL_USB) != 0) ||
-               (isInput && (halDevice & AUDIO_DEVICE_IN_ALL_USB) != 0)) {
-        snprintf(halAddress, sizeof(halAddress), "card=%d;device=%d", address.address.alsa.card,
-                 address.address.alsa.device);
-    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_BUS) != 0) ||
-               (isInput && (halDevice & AUDIO_DEVICE_IN_BUS) != 0)) {
-        snprintf(halAddress, sizeof(halAddress), "%s", address.busAddress.c_str());
-    } else if ((!isInput && (halDevice & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) != 0 ||
-               (isInput && (halDevice & AUDIO_DEVICE_IN_REMOTE_SUBMIX) != 0)) {
-        snprintf(halAddress, sizeof(halAddress), "%s", address.rSubmixAddress.c_str());
-    }
-    return halAddress;
-}
-
-#ifdef AUDIO_HAL_VERSION_4_0
-status_t deviceAddressFromHal(audio_devices_t device, const char* halAddress,
-                              DeviceAddress* address) {
-    if (address == nullptr) {
-        return BAD_VALUE;
-    }
-    address->device = AudioDevice(device);
-    if (halAddress == nullptr || strnlen(halAddress, AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) {
-        return OK;
-    }
-
-    const bool isInput = (device & AUDIO_DEVICE_BIT_IN) != 0;
-    if (isInput) device &= ~AUDIO_DEVICE_BIT_IN;
-    if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_A2DP) != 0) ||
-        (isInput && (device & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) != 0)) {
-        int status =
-            sscanf(halAddress, "%hhX:%hhX:%hhX:%hhX:%hhX:%hhX", &address->address.mac[0],
-                   &address->address.mac[1], &address->address.mac[2], &address->address.mac[3],
-                   &address->address.mac[4], &address->address.mac[5]);
-        return status == 6 ? OK : BAD_VALUE;
-    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_IP) != 0) ||
-               (isInput && (device & AUDIO_DEVICE_IN_IP) != 0)) {
-        int status =
-            sscanf(halAddress, "%hhu.%hhu.%hhu.%hhu", &address->address.ipv4[0],
-                   &address->address.ipv4[1], &address->address.ipv4[2], &address->address.ipv4[3]);
-        return status == 4 ? OK : BAD_VALUE;
-    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_USB)) != 0 ||
-               (isInput && (device & AUDIO_DEVICE_IN_ALL_USB)) != 0) {
-        int status = sscanf(halAddress, "card=%d;device=%d", &address->address.alsa.card,
-                            &address->address.alsa.device);
-        return status == 2 ? OK : BAD_VALUE;
-    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_BUS) != 0) ||
-               (isInput && (device & AUDIO_DEVICE_IN_BUS) != 0)) {
-        address->busAddress = halAddress;
-        return OK;
-    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) != 0 ||
-               (isInput && (device & AUDIO_DEVICE_IN_REMOTE_SUBMIX) != 0)) {
-        address->rSubmixAddress = halAddress;
-        return OK;
-    }
-    address->busAddress = halAddress;
-    return OK;
-}
-
-AudioMicrophoneChannelMapping halToChannelMapping(audio_microphone_channel_mapping_t mapping) {
-    switch (mapping) {
-        case AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED:
-            return AudioMicrophoneChannelMapping::UNUSED;
-        case AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT:
-            return AudioMicrophoneChannelMapping::DIRECT;
-        case AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED:
-            return AudioMicrophoneChannelMapping::PROCESSED;
-        default:
-            ALOGE("Invalid channel mapping type: %d", mapping);
-            return AudioMicrophoneChannelMapping::UNUSED;
-    }
-}
-
-AudioMicrophoneLocation halToLocation(audio_microphone_location_t location) {
-    switch (location) {
-        default:
-        case AUDIO_MICROPHONE_LOCATION_UNKNOWN:
-            return AudioMicrophoneLocation::UNKNOWN;
-        case AUDIO_MICROPHONE_LOCATION_MAINBODY:
-            return AudioMicrophoneLocation::MAINBODY;
-        case AUDIO_MICROPHONE_LOCATION_MAINBODY_MOVABLE:
-            return AudioMicrophoneLocation::MAINBODY_MOVABLE;
-        case AUDIO_MICROPHONE_LOCATION_PERIPHERAL:
-            return AudioMicrophoneLocation::PERIPHERAL;
-    }
-}
-
-AudioMicrophoneDirectionality halToDirectionality(audio_microphone_directionality_t dir) {
-    switch (dir) {
-        default:
-        case AUDIO_MICROPHONE_DIRECTIONALITY_UNKNOWN:
-            return AudioMicrophoneDirectionality::UNKNOWN;
-        case AUDIO_MICROPHONE_DIRECTIONALITY_OMNI:
-            return AudioMicrophoneDirectionality::OMNI;
-        case AUDIO_MICROPHONE_DIRECTIONALITY_BI_DIRECTIONAL:
-            return AudioMicrophoneDirectionality::BI_DIRECTIONAL;
-        case AUDIO_MICROPHONE_DIRECTIONALITY_CARDIOID:
-            return AudioMicrophoneDirectionality::CARDIOID;
-        case AUDIO_MICROPHONE_DIRECTIONALITY_HYPER_CARDIOID:
-            return AudioMicrophoneDirectionality::HYPER_CARDIOID;
-        case AUDIO_MICROPHONE_DIRECTIONALITY_SUPER_CARDIOID:
-            return AudioMicrophoneDirectionality::SUPER_CARDIOID;
-    }
-}
-
-bool halToMicrophoneCharacteristics(MicrophoneInfo* pDst,
-                                    const struct audio_microphone_characteristic_t& src) {
-    bool status = false;
-    if (pDst != NULL) {
-        pDst->deviceId = src.device_id;
-
-        if (deviceAddressFromHal(src.device, src.address, &pDst->deviceAddress) != OK) {
-            return false;
-        }
-        pDst->channelMapping.resize(AUDIO_CHANNEL_COUNT_MAX);
-        for (size_t ch = 0; ch < pDst->channelMapping.size(); ch++) {
-            pDst->channelMapping[ch] = halToChannelMapping(src.channel_mapping[ch]);
-        }
-        pDst->location = halToLocation(src.location);
-        pDst->group = (AudioMicrophoneGroup)src.group;
-        pDst->indexInTheGroup = (uint32_t)src.index_in_the_group;
-        pDst->sensitivity = src.sensitivity;
-        pDst->maxSpl = src.max_spl;
-        pDst->minSpl = src.min_spl;
-        pDst->directionality = halToDirectionality(src.directionality);
-        pDst->frequencyResponse.resize(src.num_frequency_responses);
-        for (size_t k = 0; k < src.num_frequency_responses; k++) {
-            pDst->frequencyResponse[k].frequency = src.frequency_responses[0][k];
-            pDst->frequencyResponse[k].level = src.frequency_responses[1][k];
-        }
-        pDst->position.x = src.geometric_location.x;
-        pDst->position.y = src.geometric_location.y;
-        pDst->position.z = src.geometric_location.z;
-
-        pDst->orientation.x = src.orientation.x;
-        pDst->orientation.y = src.orientation.y;
-        pDst->orientation.z = src.orientation.z;
-
-        status = true;
-    }
-    return status;
-}
-#endif
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Device.h b/audio/core/all-versions/default/include/core/all-versions/default/Device.h
deleted file mode 100644
index eb53b48..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Device.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <memory>
-
-#include <hardware/audio.h>
-#include <media/AudioParameter.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include <VersionUtils.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioHwSync;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioInputFlag;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioOutputFlag;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPatchHandle;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPort;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPortConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::implementation::AudioInputFlagBitfield;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::implementation::
-    AudioOutputFlagBitfield;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamIn;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamOut;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::ParameterValue;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-#ifdef AUDIO_HAL_VERSION_4_0
-using ::android::hardware::audio::AUDIO_HAL_VERSION::SourceMetadata;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::SinkMetadata;
-#endif
-
-struct Device : public IDevice, public ParametersUtil {
-    explicit Device(audio_hw_device_t* device);
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice follow.
-    Return<Result> initCheck() override;
-    Return<Result> setMasterVolume(float volume) override;
-    Return<void> getMasterVolume(getMasterVolume_cb _hidl_cb) override;
-    Return<Result> setMicMute(bool mute) override;
-    Return<void> getMicMute(getMicMute_cb _hidl_cb) override;
-    Return<Result> setMasterMute(bool mute) override;
-    Return<void> getMasterMute(getMasterMute_cb _hidl_cb) override;
-    Return<void> getInputBufferSize(const AudioConfig& config,
-                                    getInputBufferSize_cb _hidl_cb) override;
-
-    // V2 openInputStream is called by V4 input stream thus present in both versions
-    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                 const AudioConfig& config, AudioInputFlagBitfield flags,
-                                 AudioSource source, openInputStream_cb _hidl_cb);
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
-                                  const AudioConfig& config, AudioOutputFlagBitfield flags,
-                                  openOutputStream_cb _hidl_cb) override;
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
-                                  const AudioConfig& config, AudioOutputFlagBitfield flags,
-                                  const SourceMetadata& sourceMetadata,
-                                  openOutputStream_cb _hidl_cb) override;
-    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                 const AudioConfig& config, AudioInputFlagBitfield flags,
-                                 const SinkMetadata& sinkMetadata,
-                                 openInputStream_cb _hidl_cb) override;
-#endif
-
-    Return<bool> supportsAudioPatches() override;
-    Return<void> createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
-                                  const hidl_vec<AudioPortConfig>& sinks,
-                                  createAudioPatch_cb _hidl_cb) override;
-    Return<Result> releaseAudioPatch(int32_t patch) override;
-    Return<void> getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) override;
-    Return<Result> setAudioPortConfig(const AudioPortConfig& config) override;
-
-    Return<Result> setScreenState(bool turnedOn) override;
-
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<AudioHwSync> getHwAvSync() override;
-    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
-    Return<void> debugDump(const hidl_handle& fd) override;
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    Return<void> getHwAvSync(getHwAvSync_cb _hidl_cb) override;
-    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
-                               const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
-                                 const hidl_vec<ParameterValue>& parameters) override;
-    Return<void> getMicrophones(getMicrophones_cb _hidl_cb) override;
-    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
-#endif
-
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
-
-    // Utility methods for extending interfaces.
-    Result analyzeStatus(const char* funcName, int status);
-    void closeInputStream(audio_stream_in_t* stream);
-    void closeOutputStream(audio_stream_out_t* stream);
-    audio_hw_device_t* device() const { return mDevice; }
-
-   private:
-    audio_hw_device_t* mDevice;
-
-    virtual ~Device();
-
-    // Methods from ParametersUtil.
-    char* halGetParameters(const char* keys) override;
-    int halSetParameters(const char* keysAndValues) override;
-
-    uint32_t version() const { return mDevice->common.version; }
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h
deleted file mode 100644
index 230b8de..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-//#define LOG_NDEBUG 0
-
-#include <memory.h>
-#include <string.h>
-#include <algorithm>
-
-#include <android/log.h>
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::HidlUtils;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-Device::Device(audio_hw_device_t* device) : mDevice(device) {}
-
-Device::~Device() {
-    int status = audio_hw_device_close(mDevice);
-    ALOGW_IF(status, "Error closing audio hw device %p: %s", mDevice, strerror(-status));
-    mDevice = nullptr;
-}
-
-Result Device::analyzeStatus(const char* funcName, int status) {
-    return util::analyzeStatus("Device", funcName, status);
-}
-
-void Device::closeInputStream(audio_stream_in_t* stream) {
-    mDevice->close_input_stream(mDevice, stream);
-}
-
-void Device::closeOutputStream(audio_stream_out_t* stream) {
-    mDevice->close_output_stream(mDevice, stream);
-}
-
-char* Device::halGetParameters(const char* keys) {
-    return mDevice->get_parameters(mDevice, keys);
-}
-
-int Device::halSetParameters(const char* keysAndValues) {
-    return mDevice->set_parameters(mDevice, keysAndValues);
-}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice follow.
-Return<Result> Device::initCheck() {
-    return analyzeStatus("init_check", mDevice->init_check(mDevice));
-}
-
-Return<Result> Device::setMasterVolume(float volume) {
-    if (mDevice->set_master_volume == NULL) {
-        return Result::NOT_SUPPORTED;
-    }
-    if (!isGainNormalized(volume)) {
-        ALOGW("Can not set a master volume (%f) outside [0,1]", volume);
-        return Result::INVALID_ARGUMENTS;
-    }
-    return analyzeStatus("set_master_volume", mDevice->set_master_volume(mDevice, volume));
-}
-
-Return<void> Device::getMasterVolume(getMasterVolume_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    float volume = 0;
-    if (mDevice->get_master_volume != NULL) {
-        retval = analyzeStatus("get_master_volume", mDevice->get_master_volume(mDevice, &volume));
-    }
-    _hidl_cb(retval, volume);
-    return Void();
-}
-
-Return<Result> Device::setMicMute(bool mute) {
-    return analyzeStatus("set_mic_mute", mDevice->set_mic_mute(mDevice, mute));
-}
-
-Return<void> Device::getMicMute(getMicMute_cb _hidl_cb) {
-    bool mute = false;
-    Result retval = analyzeStatus("get_mic_mute", mDevice->get_mic_mute(mDevice, &mute));
-    _hidl_cb(retval, mute);
-    return Void();
-}
-
-Return<Result> Device::setMasterMute(bool mute) {
-    Result retval(Result::NOT_SUPPORTED);
-    if (mDevice->set_master_mute != NULL) {
-        retval = analyzeStatus("set_master_mute", mDevice->set_master_mute(mDevice, mute));
-    }
-    return retval;
-}
-
-Return<void> Device::getMasterMute(getMasterMute_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    bool mute = false;
-    if (mDevice->get_master_mute != NULL) {
-        retval = analyzeStatus("get_master_mute", mDevice->get_master_mute(mDevice, &mute));
-    }
-    _hidl_cb(retval, mute);
-    return Void();
-}
-
-Return<void> Device::getInputBufferSize(const AudioConfig& config, getInputBufferSize_cb _hidl_cb) {
-    audio_config_t halConfig;
-    HidlUtils::audioConfigToHal(config, &halConfig);
-    size_t halBufferSize = mDevice->get_input_buffer_size(mDevice, &halConfig);
-    Result retval(Result::INVALID_ARGUMENTS);
-    uint64_t bufferSize = 0;
-    if (halBufferSize != 0) {
-        retval = Result::OK;
-        bufferSize = halBufferSize;
-    }
-    _hidl_cb(retval, bufferSize);
-    return Void();
-}
-
-Return<void> Device::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
-                                      const AudioConfig& config, AudioOutputFlagBitfield flags,
-#ifdef AUDIO_HAL_VERSION_4_0
-                                      const SourceMetadata& /* sourceMetadata */,
-#endif
-                                      openOutputStream_cb _hidl_cb) {
-    audio_config_t halConfig;
-    HidlUtils::audioConfigToHal(config, &halConfig);
-    audio_stream_out_t* halStream;
-    ALOGV(
-        "open_output_stream handle: %d devices: %x flags: %#x "
-        "srate: %d format %#x channels %x address %s",
-        ioHandle, static_cast<audio_devices_t>(device.device),
-        static_cast<audio_output_flags_t>(flags), halConfig.sample_rate, halConfig.format,
-        halConfig.channel_mask, deviceAddressToHal(device).c_str());
-    int status =
-        mDevice->open_output_stream(mDevice, ioHandle, static_cast<audio_devices_t>(device.device),
-                                    static_cast<audio_output_flags_t>(flags), &halConfig,
-                                    &halStream, deviceAddressToHal(device).c_str());
-    ALOGV("open_output_stream status %d stream %p", status, halStream);
-    sp<IStreamOut> streamOut;
-    if (status == OK) {
-        streamOut = new StreamOut(this, halStream);
-    }
-    AudioConfig suggestedConfig;
-    HidlUtils::audioConfigFromHal(halConfig, &suggestedConfig);
-    _hidl_cb(analyzeStatus("open_output_stream", status), streamOut, suggestedConfig);
-    return Void();
-}
-
-Return<void> Device::openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                     const AudioConfig& config, AudioInputFlagBitfield flags,
-                                     AudioSource source, openInputStream_cb _hidl_cb) {
-    audio_config_t halConfig;
-    HidlUtils::audioConfigToHal(config, &halConfig);
-    audio_stream_in_t* halStream;
-    ALOGV(
-        "open_input_stream handle: %d devices: %x flags: %#x "
-        "srate: %d format %#x channels %x address %s source %d",
-        ioHandle, static_cast<audio_devices_t>(device.device),
-        static_cast<audio_input_flags_t>(flags), halConfig.sample_rate, halConfig.format,
-        halConfig.channel_mask, deviceAddressToHal(device).c_str(),
-        static_cast<audio_source_t>(source));
-    int status = mDevice->open_input_stream(
-        mDevice, ioHandle, static_cast<audio_devices_t>(device.device), &halConfig, &halStream,
-        static_cast<audio_input_flags_t>(flags), deviceAddressToHal(device).c_str(),
-        static_cast<audio_source_t>(source));
-    ALOGV("open_input_stream status %d stream %p", status, halStream);
-    sp<IStreamIn> streamIn;
-    if (status == OK) {
-        streamIn = new StreamIn(this, halStream);
-    }
-    AudioConfig suggestedConfig;
-    HidlUtils::audioConfigFromHal(halConfig, &suggestedConfig);
-    _hidl_cb(analyzeStatus("open_input_stream", status), streamIn, suggestedConfig);
-    return Void();
-}
-
-#ifdef AUDIO_HAL_VERSION_4_0
-Return<void> Device::openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                     const AudioConfig& config, AudioInputFlagBitfield flags,
-                                     const SinkMetadata& sinkMetadata,
-                                     openInputStream_cb _hidl_cb) {
-    if (sinkMetadata.tracks.size() == 0) {
-        // This should never happen, the framework must not create as stream
-        // if there is no client
-        ALOGE("openInputStream called without tracks connected");
-        _hidl_cb(Result::INVALID_ARGUMENTS, nullptr, AudioConfig());
-        return Void();
-    }
-    // Pick the first one as the main until the legacy API is update
-    AudioSource source = sinkMetadata.tracks[0].source;
-    return openInputStream(ioHandle, device, config, flags, source, _hidl_cb);
-}
-#endif
-
-Return<bool> Device::supportsAudioPatches() {
-    return version() >= AUDIO_DEVICE_API_VERSION_3_0;
-}
-
-Return<void> Device::createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
-                                      const hidl_vec<AudioPortConfig>& sinks,
-                                      createAudioPatch_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    AudioPatchHandle patch = 0;
-    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        std::unique_ptr<audio_port_config[]> halSources(HidlUtils::audioPortConfigsToHal(sources));
-        std::unique_ptr<audio_port_config[]> halSinks(HidlUtils::audioPortConfigsToHal(sinks));
-        audio_patch_handle_t halPatch = AUDIO_PATCH_HANDLE_NONE;
-        retval = analyzeStatus("create_audio_patch",
-                               mDevice->create_audio_patch(mDevice, sources.size(), &halSources[0],
-                                                           sinks.size(), &halSinks[0], &halPatch));
-        if (retval == Result::OK) {
-            patch = static_cast<AudioPatchHandle>(halPatch);
-        }
-    }
-    _hidl_cb(retval, patch);
-    return Void();
-}
-
-Return<Result> Device::releaseAudioPatch(int32_t patch) {
-    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        return analyzeStatus(
-            "release_audio_patch",
-            mDevice->release_audio_patch(mDevice, static_cast<audio_patch_handle_t>(patch)));
-    }
-    return Result::NOT_SUPPORTED;
-}
-
-Return<void> Device::getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) {
-    audio_port halPort;
-    HidlUtils::audioPortToHal(port, &halPort);
-    Result retval = analyzeStatus("get_audio_port", mDevice->get_audio_port(mDevice, &halPort));
-    AudioPort resultPort = port;
-    if (retval == Result::OK) {
-        HidlUtils::audioPortFromHal(halPort, &resultPort);
-    }
-    _hidl_cb(retval, resultPort);
-    return Void();
-}
-
-Return<Result> Device::setAudioPortConfig(const AudioPortConfig& config) {
-    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        struct audio_port_config halPortConfig;
-        HidlUtils::audioPortConfigToHal(config, &halPortConfig);
-        return analyzeStatus("set_audio_port_config",
-                             mDevice->set_audio_port_config(mDevice, &halPortConfig));
-    }
-    return Result::NOT_SUPPORTED;
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<AudioHwSync> Device::getHwAvSync() {
-    int halHwAvSync;
-    Result retval = getParam(AudioParameter::keyHwAvSync, &halHwAvSync);
-    return retval == Result::OK ? halHwAvSync : AUDIO_HW_SYNC_INVALID;
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> Device::getHwAvSync(getHwAvSync_cb _hidl_cb) {
-    int halHwAvSync;
-    Result retval = getParam(AudioParameter::keyHwAvSync, &halHwAvSync);
-    _hidl_cb(retval, halHwAvSync);
-    return Void();
-}
-#endif
-
-Return<Result> Device::setScreenState(bool turnedOn) {
-    return setParam(AudioParameter::keyScreenState, turnedOn);
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> Device::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
-    getParametersImpl({}, keys, _hidl_cb);
-    return Void();
-}
-
-Return<Result> Device::setParameters(const hidl_vec<ParameterValue>& parameters) {
-    return setParametersImpl({} /* context */, parameters);
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> Device::getParameters(const hidl_vec<ParameterValue>& context,
-                                   const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
-    getParametersImpl(context, keys, _hidl_cb);
-    return Void();
-}
-Return<Result> Device::setParameters(const hidl_vec<ParameterValue>& context,
-                                     const hidl_vec<ParameterValue>& parameters) {
-    return setParametersImpl(context, parameters);
-}
-#endif
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> Device::debugDump(const hidl_handle& fd) {
-    return debug(fd, {});
-}
-#endif
-
-Return<void> Device::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
-    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
-        analyzeStatus("dump", mDevice->dump(mDevice, fd->data[0]));
-    }
-    return Void();
-}
-
-#ifdef AUDIO_HAL_VERSION_4_0
-Return<void> Device::getMicrophones(getMicrophones_cb _hidl_cb) {
-    Result retval = Result::NOT_SUPPORTED;
-    size_t actual_mics = AUDIO_MICROPHONE_MAX_COUNT;
-    audio_microphone_characteristic_t mic_array[AUDIO_MICROPHONE_MAX_COUNT];
-
-    hidl_vec<MicrophoneInfo> microphones;
-    if (mDevice->get_microphones != NULL &&
-        mDevice->get_microphones(mDevice, &mic_array[0], &actual_mics) == 0) {
-        microphones.resize(actual_mics);
-        for (size_t i = 0; i < actual_mics; ++i) {
-            halToMicrophoneCharacteristics(&microphones[i], mic_array[i]);
-        }
-        retval = Result::OK;
-    }
-    _hidl_cb(retval, microphones);
-    return Void();
-}
-
-Return<Result> Device::setConnectedState(const DeviceAddress& address, bool connected) {
-    auto key = connected ? AudioParameter::keyStreamConnect : AudioParameter::keyStreamDisconnect;
-    return setParam(key, address);
-}
-#endif
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/DevicesFactory.h b/audio/core/all-versions/default/include/core/all-versions/default/DevicesFactory.h
deleted file mode 100644
index 1509ad1..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/DevicesFactory.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hardware/audio.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IDevicesFactory;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct DevicesFactory : public IDevicesFactory {
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> openDevice(IDevicesFactory::Device device, openDevice_cb _hidl_cb) override;
-#endif
-#ifdef AUDIO_HAL_VERSION_4_0
-    Return<void> openDevice(const hidl_string& device, openDevice_cb _hidl_cb) override;
-    Return<void> openPrimaryDevice(openPrimaryDevice_cb _hidl_cb) override;
-#endif
-
-   private:
-    template <class DeviceShim, class Callback>
-    Return<void> openDevice(const char* moduleName, Callback _hidl_cb);
-    Return<void> openDevice(const char* moduleName, openDevice_cb _hidl_cb);
-
-    static int loadAudioInterface(const char* if_name, audio_hw_device_t** dev);
-};
-
-extern "C" IDevicesFactory* HIDL_FETCH_IDevicesFactory(const char* name);
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/DevicesFactory.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/DevicesFactory.impl.h
deleted file mode 100644
index 43e5d6e..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/DevicesFactory.impl.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <string.h>
-
-#include <android/log.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> DevicesFactory::openDevice(IDevicesFactory::Device device, openDevice_cb _hidl_cb) {
-    switch (device) {
-        case IDevicesFactory::Device::PRIMARY:
-            return openDevice<PrimaryDevice>(AUDIO_HARDWARE_MODULE_ID_PRIMARY, _hidl_cb);
-        case IDevicesFactory::Device::A2DP:
-            return openDevice(AUDIO_HARDWARE_MODULE_ID_A2DP, _hidl_cb);
-        case IDevicesFactory::Device::USB:
-            return openDevice(AUDIO_HARDWARE_MODULE_ID_USB, _hidl_cb);
-        case IDevicesFactory::Device::R_SUBMIX:
-            return openDevice(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, _hidl_cb);
-        case IDevicesFactory::Device::STUB:
-            return openDevice(AUDIO_HARDWARE_MODULE_ID_STUB, _hidl_cb);
-    }
-    _hidl_cb(Result::INVALID_ARGUMENTS, nullptr);
-    return Void();
-}
-#endif
-#ifdef AUDIO_HAL_VERSION_4_0
-Return<void> DevicesFactory::openDevice(const hidl_string& moduleName, openDevice_cb _hidl_cb) {
-    if (moduleName == AUDIO_HARDWARE_MODULE_ID_PRIMARY) {
-        return openDevice<PrimaryDevice>(moduleName.c_str(), _hidl_cb);
-    }
-    return openDevice(moduleName.c_str(), _hidl_cb);
-}
-Return<void> DevicesFactory::openPrimaryDevice(openPrimaryDevice_cb _hidl_cb) {
-    return openDevice<PrimaryDevice>(AUDIO_HARDWARE_MODULE_ID_PRIMARY, _hidl_cb);
-}
-#endif
-
-Return<void> DevicesFactory::openDevice(const char* moduleName, openDevice_cb _hidl_cb) {
-    return openDevice<implementation::Device>(moduleName, _hidl_cb);
-}
-
-template <class DeviceShim, class Callback>
-Return<void> DevicesFactory::openDevice(const char* moduleName, Callback _hidl_cb) {
-    audio_hw_device_t* halDevice;
-    Result retval(Result::INVALID_ARGUMENTS);
-    sp<DeviceShim> result;
-    int halStatus = loadAudioInterface(moduleName, &halDevice);
-    if (halStatus == OK) {
-        result = new DeviceShim(halDevice);
-        retval = Result::OK;
-    } else if (halStatus == -EINVAL) {
-        retval = Result::NOT_INITIALIZED;
-    }
-    _hidl_cb(retval, result);
-    return Void();
-}
-
-// static
-int DevicesFactory::loadAudioInterface(const char* if_name, audio_hw_device_t** dev) {
-    const hw_module_t* mod;
-    int rc;
-
-    rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
-    if (rc) {
-        ALOGE("%s couldn't load audio hw module %s.%s (%s)", __func__, AUDIO_HARDWARE_MODULE_ID,
-              if_name, strerror(-rc));
-        goto out;
-    }
-    rc = audio_hw_device_open(mod, dev);
-    if (rc) {
-        ALOGE("%s couldn't open audio hw device in %s.%s (%s)", __func__, AUDIO_HARDWARE_MODULE_ID,
-              if_name, strerror(-rc));
-        goto out;
-    }
-    if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
-        ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
-        rc = -EINVAL;
-        audio_hw_device_close(*dev);
-        goto out;
-    }
-    return OK;
-
-out:
-    *dev = NULL;
-    return rc;
-}
-
-IDevicesFactory* HIDL_FETCH_IDevicesFactory(const char* /* name */) {
-    return new DevicesFactory();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.h b/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.h
deleted file mode 100644
index 35ff110..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <functional>
-#include <memory>
-
-#include <hidl/HidlSupport.h>
-#include <media/AudioParameter.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::ParameterValue;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::hidl_string;
-using ::android::hardware::hidl_vec;
-
-class ParametersUtil {
-   public:
-    Result setParam(const char* name, const char* value);
-    Result getParam(const char* name, bool* value);
-    Result getParam(const char* name, int* value);
-    Result getParam(const char* name, String8* value, AudioParameter context = {});
-    void getParametersImpl(
-        const hidl_vec<ParameterValue>& context, const hidl_vec<hidl_string>& keys,
-        std::function<void(Result retval, const hidl_vec<ParameterValue>& parameters)> cb);
-    std::unique_ptr<AudioParameter> getParams(const AudioParameter& keys);
-    Result setParam(const char* name, bool value);
-    Result setParam(const char* name, int value);
-    Result setParam(const char* name, float value);
-    Result setParametersImpl(const hidl_vec<ParameterValue>& context,
-                             const hidl_vec<ParameterValue>& parameters);
-    Result setParams(const AudioParameter& param);
-    Result setParam(const char* name, const DeviceAddress& address);
-
-   protected:
-    virtual ~ParametersUtil() {}
-
-    virtual char* halGetParameters(const char* keys) = 0;
-    virtual int halSetParameters(const char* keysAndValues) = 0;
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h
deleted file mode 100644
index 34bc53c..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-#include <core/all-versions/default/Conversions.h>
-#include <system/audio.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-/** Converts a status_t in Result according to the rules of AudioParameter::get*
- * Note: Static method and not private method to avoid leaking status_t dependency
- */
-static Result getHalStatusToResult(status_t status) {
-    switch (status) {
-        case OK:
-            return Result::OK;
-        case BAD_VALUE:  // Nothing was returned, probably because the HAL does
-                         // not handle it
-            return Result::NOT_SUPPORTED;
-        case INVALID_OPERATION:  // Conversion from string to the requested type
-                                 // failed
-            return Result::INVALID_ARGUMENTS;
-        default:  // Should not happen
-            ALOGW("Unexpected status returned by getParam: %u", status);
-            return Result::INVALID_ARGUMENTS;
-    }
-}
-
-Result ParametersUtil::getParam(const char* name, bool* value) {
-    String8 halValue;
-    Result retval = getParam(name, &halValue);
-    *value = false;
-    if (retval == Result::OK) {
-        if (halValue.empty()) {
-            return Result::NOT_SUPPORTED;
-        }
-        *value = !(halValue == AudioParameter::valueOff);
-    }
-    return retval;
-}
-
-Result ParametersUtil::getParam(const char* name, int* value) {
-    const String8 halName(name);
-    AudioParameter keys;
-    keys.addKey(halName);
-    std::unique_ptr<AudioParameter> params = getParams(keys);
-    return getHalStatusToResult(params->getInt(halName, *value));
-}
-
-Result ParametersUtil::getParam(const char* name, String8* value, AudioParameter context) {
-    const String8 halName(name);
-    context.addKey(halName);
-    std::unique_ptr<AudioParameter> params = getParams(context);
-    return getHalStatusToResult(params->get(halName, *value));
-}
-
-void ParametersUtil::getParametersImpl(
-    const hidl_vec<ParameterValue>& context, const hidl_vec<hidl_string>& keys,
-    std::function<void(Result retval, const hidl_vec<ParameterValue>& parameters)> cb) {
-    AudioParameter halKeys;
-    for (auto& pair : context) {
-        halKeys.add(String8(pair.key.c_str()), String8(pair.value.c_str()));
-    }
-    for (size_t i = 0; i < keys.size(); ++i) {
-        halKeys.addKey(String8(keys[i].c_str()));
-    }
-    std::unique_ptr<AudioParameter> halValues = getParams(halKeys);
-    Result retval =
-        (keys.size() == 0 || halValues->size() != 0) ? Result::OK : Result::NOT_SUPPORTED;
-    hidl_vec<ParameterValue> result;
-    result.resize(halValues->size());
-    String8 halKey, halValue;
-    for (size_t i = 0; i < halValues->size(); ++i) {
-        status_t status = halValues->getAt(i, halKey, halValue);
-        if (status != OK) {
-            result.resize(0);
-            retval = getHalStatusToResult(status);
-            break;
-        }
-        result[i].key = halKey.string();
-        result[i].value = halValue.string();
-    }
-    cb(retval, result);
-}
-
-std::unique_ptr<AudioParameter> ParametersUtil::getParams(const AudioParameter& keys) {
-    String8 paramsAndValues;
-    char* halValues = halGetParameters(keys.keysToString().string());
-    if (halValues != NULL) {
-        paramsAndValues.setTo(halValues);
-        free(halValues);
-    } else {
-        paramsAndValues.clear();
-    }
-    return std::unique_ptr<AudioParameter>(new AudioParameter(paramsAndValues));
-}
-
-Result ParametersUtil::setParam(const char* name, const char* value) {
-    AudioParameter param;
-    param.add(String8(name), String8(value));
-    return setParams(param);
-}
-
-Result ParametersUtil::setParam(const char* name, bool value) {
-    AudioParameter param;
-    param.add(String8(name), String8(value ? AudioParameter::valueOn : AudioParameter::valueOff));
-    return setParams(param);
-}
-
-Result ParametersUtil::setParam(const char* name, int value) {
-    AudioParameter param;
-    param.addInt(String8(name), value);
-    return setParams(param);
-}
-
-Result ParametersUtil::setParam(const char* name, float value) {
-    AudioParameter param;
-    param.addFloat(String8(name), value);
-    return setParams(param);
-}
-
-Result ParametersUtil::setParametersImpl(const hidl_vec<ParameterValue>& context,
-                                         const hidl_vec<ParameterValue>& parameters) {
-    AudioParameter params;
-    for (auto& pair : context) {
-        params.add(String8(pair.key.c_str()), String8(pair.value.c_str()));
-    }
-    for (size_t i = 0; i < parameters.size(); ++i) {
-        params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
-    }
-    return setParams(params);
-}
-Result ParametersUtil::setParam(const char* name, const DeviceAddress& address) {
-    AudioParameter params(String8(deviceAddressToHal(address).c_str()));
-    params.addInt(String8(name), int(address.device));
-    return setParams(params);
-}
-
-Result ParametersUtil::setParams(const AudioParameter& param) {
-    int halStatus = halSetParameters(param.toString().string());
-    return util::analyzeStatus(halStatus);
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.h b/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.h
deleted file mode 100644
index 42996d7..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioInputFlag;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioOutputFlag;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPort;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioPortConfig;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IPrimaryDevice;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamIn;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamOut;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::ParameterValue;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct PrimaryDevice : public IPrimaryDevice {
-    explicit PrimaryDevice(audio_hw_device_t* device);
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice follow.
-    Return<Result> initCheck() override;
-    Return<Result> setMasterVolume(float volume) override;
-    Return<void> getMasterVolume(getMasterVolume_cb _hidl_cb) override;
-    Return<Result> setMicMute(bool mute) override;
-    Return<void> getMicMute(getMicMute_cb _hidl_cb) override;
-    Return<Result> setMasterMute(bool mute) override;
-    Return<void> getMasterMute(getMasterMute_cb _hidl_cb) override;
-    Return<void> getInputBufferSize(const AudioConfig& config,
-                                    getInputBufferSize_cb _hidl_cb) override;
-
-    Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
-                                  const AudioConfig& config, AudioOutputFlagBitfield flags,
-#ifdef AUDIO_HAL_VERSION_4_0
-                                  const SourceMetadata& sourceMetadata,
-#endif
-                                  openOutputStream_cb _hidl_cb) override;
-
-    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                 const AudioConfig& config, AudioInputFlagBitfield flags,
-                                 AudioSource source, openInputStream_cb _hidl_cb);
-#ifdef AUDIO_HAL_VERSION_4_0
-    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                 const AudioConfig& config, AudioInputFlagBitfield flags,
-                                 const SinkMetadata& sinkMetadata,
-                                 openInputStream_cb _hidl_cb) override;
-#endif
-
-    Return<bool> supportsAudioPatches() override;
-    Return<void> createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
-                                  const hidl_vec<AudioPortConfig>& sinks,
-                                  createAudioPatch_cb _hidl_cb) override;
-    Return<Result> releaseAudioPatch(int32_t patch) override;
-    Return<void> getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) override;
-    Return<Result> setAudioPortConfig(const AudioPortConfig& config) override;
-
-    Return<Result> setScreenState(bool turnedOn) override;
-
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<AudioHwSync> getHwAvSync() override;
-    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
-    Return<void> debugDump(const hidl_handle& fd) override;
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    Return<void> getHwAvSync(getHwAvSync_cb _hidl_cb) override;
-    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
-                               const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
-                                 const hidl_vec<ParameterValue>& parameters) override;
-    Return<void> getMicrophones(getMicrophones_cb _hidl_cb) override;
-    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
-#endif
-
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IPrimaryDevice follow.
-    Return<Result> setVoiceVolume(float volume) override;
-    Return<Result> setMode(AudioMode mode) override;
-    Return<void> getBtScoNrecEnabled(getBtScoNrecEnabled_cb _hidl_cb) override;
-    Return<Result> setBtScoNrecEnabled(bool enabled) override;
-    Return<void> getBtScoWidebandEnabled(getBtScoWidebandEnabled_cb _hidl_cb) override;
-    Return<Result> setBtScoWidebandEnabled(bool enabled) override;
-    Return<void> getTtyMode(getTtyMode_cb _hidl_cb) override;
-    Return<Result> setTtyMode(IPrimaryDevice::TtyMode mode) override;
-    Return<void> getHacEnabled(getHacEnabled_cb _hidl_cb) override;
-    Return<Result> setHacEnabled(bool enabled) override;
-
-#ifdef AUDIO_HAL_VERSION_4_0
-    Return<Result> setBtScoHeadsetDebugName(const hidl_string& name) override;
-    Return<void> getBtHfpEnabled(getBtHfpEnabled_cb _hidl_cb) override;
-    Return<Result> setBtHfpEnabled(bool enabled) override;
-    Return<Result> setBtHfpSampleRate(uint32_t sampleRateHz) override;
-    Return<Result> setBtHfpVolume(float volume) override;
-    Return<Result> updateRotation(IPrimaryDevice::Rotation rotation) override;
-#endif
-
-   private:
-    sp<Device> mDevice;
-
-    virtual ~PrimaryDevice();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h
deleted file mode 100644
index f269dd4..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h
+++ /dev/null
@@ -1,313 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#ifdef AUDIO_HAL_VERSION_4_0
-#include <cmath>
-#endif
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-PrimaryDevice::PrimaryDevice(audio_hw_device_t* device) : mDevice(new Device(device)) {}
-
-PrimaryDevice::~PrimaryDevice() {}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IDevice follow.
-Return<Result> PrimaryDevice::initCheck() {
-    return mDevice->initCheck();
-}
-
-Return<Result> PrimaryDevice::setMasterVolume(float volume) {
-    return mDevice->setMasterVolume(volume);
-}
-
-Return<void> PrimaryDevice::getMasterVolume(getMasterVolume_cb _hidl_cb) {
-    return mDevice->getMasterVolume(_hidl_cb);
-}
-
-Return<Result> PrimaryDevice::setMicMute(bool mute) {
-    return mDevice->setMicMute(mute);
-}
-
-Return<void> PrimaryDevice::getMicMute(getMicMute_cb _hidl_cb) {
-    return mDevice->getMicMute(_hidl_cb);
-}
-
-Return<Result> PrimaryDevice::setMasterMute(bool mute) {
-    return mDevice->setMasterMute(mute);
-}
-
-Return<void> PrimaryDevice::getMasterMute(getMasterMute_cb _hidl_cb) {
-    return mDevice->getMasterMute(_hidl_cb);
-}
-
-Return<void> PrimaryDevice::getInputBufferSize(const AudioConfig& config,
-                                               getInputBufferSize_cb _hidl_cb) {
-    return mDevice->getInputBufferSize(config, _hidl_cb);
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> PrimaryDevice::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
-                                             const AudioConfig& config,
-                                             AudioOutputFlagBitfield flags,
-                                             openOutputStream_cb _hidl_cb) {
-    return mDevice->openOutputStream(ioHandle, device, config, flags, _hidl_cb);
-}
-
-Return<void> PrimaryDevice::openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                            const AudioConfig& config, AudioInputFlagBitfield flags,
-                                            AudioSource source, openInputStream_cb _hidl_cb) {
-    return mDevice->openInputStream(ioHandle, device, config, flags, source, _hidl_cb);
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> PrimaryDevice::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
-                                             const AudioConfig& config,
-                                             AudioOutputFlagBitfield flags,
-                                             const SourceMetadata& sourceMetadata,
-                                             openOutputStream_cb _hidl_cb) {
-    return mDevice->openOutputStream(ioHandle, device, config, flags, sourceMetadata, _hidl_cb);
-}
-
-Return<void> PrimaryDevice::openInputStream(int32_t ioHandle, const DeviceAddress& device,
-                                            const AudioConfig& config, AudioInputFlagBitfield flags,
-                                            const SinkMetadata& sinkMetadata,
-                                            openInputStream_cb _hidl_cb) {
-    return mDevice->openInputStream(ioHandle, device, config, flags, sinkMetadata, _hidl_cb);
-}
-#endif
-
-Return<bool> PrimaryDevice::supportsAudioPatches() {
-    return mDevice->supportsAudioPatches();
-}
-
-Return<void> PrimaryDevice::createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
-                                             const hidl_vec<AudioPortConfig>& sinks,
-                                             createAudioPatch_cb _hidl_cb) {
-    return mDevice->createAudioPatch(sources, sinks, _hidl_cb);
-}
-
-Return<Result> PrimaryDevice::releaseAudioPatch(int32_t patch) {
-    return mDevice->releaseAudioPatch(patch);
-}
-
-Return<void> PrimaryDevice::getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) {
-    return mDevice->getAudioPort(port, _hidl_cb);
-}
-
-Return<Result> PrimaryDevice::setAudioPortConfig(const AudioPortConfig& config) {
-    return mDevice->setAudioPortConfig(config);
-}
-
-Return<Result> PrimaryDevice::setScreenState(bool turnedOn) {
-    return mDevice->setScreenState(turnedOn);
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<AudioHwSync> PrimaryDevice::getHwAvSync() {
-    return mDevice->getHwAvSync();
-}
-
-Return<void> PrimaryDevice::getParameters(const hidl_vec<hidl_string>& keys,
-                                          getParameters_cb _hidl_cb) {
-    return mDevice->getParameters(keys, _hidl_cb);
-}
-
-Return<Result> PrimaryDevice::setParameters(const hidl_vec<ParameterValue>& parameters) {
-    return mDevice->setParameters(parameters);
-}
-
-Return<void> PrimaryDevice::debugDump(const hidl_handle& fd) {
-    return mDevice->debugDump(fd);
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> PrimaryDevice::getHwAvSync(getHwAvSync_cb _hidl_cb) {
-    return mDevice->getHwAvSync(_hidl_cb);
-}
-Return<void> PrimaryDevice::getParameters(const hidl_vec<ParameterValue>& context,
-                                          const hidl_vec<hidl_string>& keys,
-                                          getParameters_cb _hidl_cb) {
-    return mDevice->getParameters(context, keys, _hidl_cb);
-}
-Return<Result> PrimaryDevice::setParameters(const hidl_vec<ParameterValue>& context,
-                                            const hidl_vec<ParameterValue>& parameters) {
-    return mDevice->setParameters(context, parameters);
-}
-Return<void> PrimaryDevice::getMicrophones(getMicrophones_cb _hidl_cb) {
-    return mDevice->getMicrophones(_hidl_cb);
-}
-Return<Result> PrimaryDevice::setConnectedState(const DeviceAddress& address, bool connected) {
-    return mDevice->setConnectedState(address, connected);
-}
-#endif
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IPrimaryDevice follow.
-Return<Result> PrimaryDevice::setVoiceVolume(float volume) {
-    if (!isGainNormalized(volume)) {
-        ALOGW("Can not set a voice volume (%f) outside [0,1]", volume);
-        return Result::INVALID_ARGUMENTS;
-    }
-    return mDevice->analyzeStatus("set_voice_volume",
-                                  mDevice->device()->set_voice_volume(mDevice->device(), volume));
-}
-
-Return<Result> PrimaryDevice::setMode(AudioMode mode) {
-    // INVALID, CURRENT, CNT, MAX are reserved for internal use.
-    // TODO: remove the values from the HIDL interface
-    switch (mode) {
-        case AudioMode::NORMAL:
-        case AudioMode::RINGTONE:
-        case AudioMode::IN_CALL:
-        case AudioMode::IN_COMMUNICATION:
-            break;  // Valid values
-        default:
-            return Result::INVALID_ARGUMENTS;
-    };
-
-    return mDevice->analyzeStatus(
-        "set_mode",
-        mDevice->device()->set_mode(mDevice->device(), static_cast<audio_mode_t>(mode)));
-}
-
-Return<void> PrimaryDevice::getBtScoNrecEnabled(getBtScoNrecEnabled_cb _hidl_cb) {
-    bool enabled;
-    Result retval = mDevice->getParam(AudioParameter::keyBtNrec, &enabled);
-    _hidl_cb(retval, enabled);
-    return Void();
-}
-
-Return<Result> PrimaryDevice::setBtScoNrecEnabled(bool enabled) {
-    return mDevice->setParam(AudioParameter::keyBtNrec, enabled);
-}
-
-Return<void> PrimaryDevice::getBtScoWidebandEnabled(getBtScoWidebandEnabled_cb _hidl_cb) {
-    bool enabled;
-    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_BT_SCO_WB, &enabled);
-    _hidl_cb(retval, enabled);
-    return Void();
-}
-
-Return<Result> PrimaryDevice::setBtScoWidebandEnabled(bool enabled) {
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_BT_SCO_WB, enabled);
-}
-
-static const char* convertTtyModeFromHIDL(IPrimaryDevice::TtyMode mode) {
-    switch (mode) {
-        case IPrimaryDevice::TtyMode::OFF:
-            return AUDIO_PARAMETER_VALUE_TTY_OFF;
-        case IPrimaryDevice::TtyMode::VCO:
-            return AUDIO_PARAMETER_VALUE_TTY_VCO;
-        case IPrimaryDevice::TtyMode::HCO:
-            return AUDIO_PARAMETER_VALUE_TTY_HCO;
-        case IPrimaryDevice::TtyMode::FULL:
-            return AUDIO_PARAMETER_VALUE_TTY_FULL;
-        default:
-            return nullptr;
-    }
-}
-static IPrimaryDevice::TtyMode convertTtyModeToHIDL(const char* halMode) {
-    if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_OFF) == 0)
-        return IPrimaryDevice::TtyMode::OFF;
-    else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_VCO) == 0)
-        return IPrimaryDevice::TtyMode::VCO;
-    else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_HCO) == 0)
-        return IPrimaryDevice::TtyMode::HCO;
-    else if (strcmp(halMode, AUDIO_PARAMETER_VALUE_TTY_FULL) == 0)
-        return IPrimaryDevice::TtyMode::FULL;
-    return IPrimaryDevice::TtyMode(-1);
-}
-
-Return<void> PrimaryDevice::getTtyMode(getTtyMode_cb _hidl_cb) {
-    String8 halMode;
-    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_TTY_MODE, &halMode);
-    if (retval != Result::OK) {
-        _hidl_cb(retval, TtyMode::OFF);
-        return Void();
-    }
-    TtyMode mode = convertTtyModeToHIDL(halMode);
-    if (mode == TtyMode(-1)) {
-        ALOGE("HAL returned invalid TTY value: %s", halMode.c_str());
-        _hidl_cb(Result::INVALID_STATE, TtyMode::OFF);
-        return Void();
-    }
-    _hidl_cb(Result::OK, mode);
-    return Void();
-}
-
-Return<Result> PrimaryDevice::setTtyMode(IPrimaryDevice::TtyMode mode) {
-    const char* modeStr = convertTtyModeFromHIDL(mode);
-    if (modeStr == nullptr) {
-        ALOGW("Can not set an invalid TTY value: %d", mode);
-        return Result::INVALID_ARGUMENTS;
-    }
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_TTY_MODE, modeStr);
-}
-
-Return<void> PrimaryDevice::getHacEnabled(getHacEnabled_cb _hidl_cb) {
-    bool enabled;
-    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_HAC, &enabled);
-    _hidl_cb(retval, enabled);
-    return Void();
-}
-
-Return<Result> PrimaryDevice::setHacEnabled(bool enabled) {
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_HAC, enabled);
-}
-
-#ifdef AUDIO_HAL_VERSION_4_0
-Return<Result> PrimaryDevice::setBtScoHeadsetDebugName(const hidl_string& name) {
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_BT_SCO_HEADSET_NAME, name.c_str());
-}
-Return<void> PrimaryDevice::getBtHfpEnabled(getBtHfpEnabled_cb _hidl_cb) {
-    bool enabled;
-    Result retval = mDevice->getParam(AUDIO_PARAMETER_KEY_HFP_ENABLE, &enabled);
-    _hidl_cb(retval, enabled);
-    return Void();
-}
-Return<Result> PrimaryDevice::setBtHfpEnabled(bool enabled) {
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_ENABLE, enabled);
-}
-Return<Result> PrimaryDevice::setBtHfpSampleRate(uint32_t sampleRateHz) {
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_SET_SAMPLING_RATE, int(sampleRateHz));
-}
-Return<Result> PrimaryDevice::setBtHfpVolume(float volume) {
-    if (!isGainNormalized(volume)) {
-        ALOGW("Can not set BT HFP volume (%f) outside [0,1]", volume);
-        return Result::INVALID_ARGUMENTS;
-    }
-    // Map the normalized volume onto the range of [0, 15]
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_VOLUME,
-                             static_cast<int>(std::round(volume * 15)));
-}
-Return<Result> PrimaryDevice::updateRotation(IPrimaryDevice::Rotation rotation) {
-    // legacy API expects the rotation in degree
-    return mDevice->setParam(AUDIO_PARAMETER_KEY_ROTATION, int(rotation) * 90);
-}
-#endif
-
-Return<void> PrimaryDevice::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
-    return mDevice->debug(fd, options);
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Stream.h b/audio/core/all-versions/default/include/core/all-versions/default/Stream.h
deleted file mode 100644
index 7cf12dd..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Stream.h
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <vector>
-
-#include <hardware/audio.h>
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include <VersionUtils.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioChannelMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioFormat;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::implementation::AudioChannelBitfield;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStream;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::ParameterValue;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct Stream : public IStream, public ParametersUtil {
-    explicit Stream(audio_stream_t* stream);
-
-    /** 1GiB is the maximum buffer size the HAL client is allowed to request.
-     * This value has been chosen to be under SIZE_MAX and still big enough
-     * for all audio use case.
-     * Keep private for 2.0, put in .hal in 2.1
-     */
-    static constexpr uint32_t MAX_BUFFER_SIZE = 2 << 30 /* == 1GiB */;
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStream follow.
-    Return<uint64_t> getFrameSize() override;
-    Return<uint64_t> getFrameCount() override;
-    Return<uint64_t> getBufferSize() override;
-    Return<uint32_t> getSampleRate() override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
-    Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
-#endif
-    Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb);
-    Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb);
-    Return<Result> setSampleRate(uint32_t sampleRateHz) override;
-    Return<AudioChannelBitfield> getChannelMask() override;
-    Return<Result> setChannelMask(AudioChannelBitfield mask) override;
-    Return<AudioFormat> getFormat() override;
-    Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
-    Return<Result> setFormat(AudioFormat format) override;
-    Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
-    Return<Result> addEffect(uint64_t effectId) override;
-    Return<Result> removeEffect(uint64_t effectId) override;
-    Return<Result> standby() override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<AudioDevice> getDevice() override;
-    Return<Result> setDevice(const DeviceAddress& address) override;
-    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
-    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    Return<void> getDevices(getDevices_cb _hidl_cb) override;
-    Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override;
-    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
-                               const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
-                                 const hidl_vec<ParameterValue>& parameters) override;
-#endif
-    Return<Result> setHwAvSync(uint32_t hwAvSync) override;
-    Return<Result> start() override;
-    Return<Result> stop() override;
-    Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
-    Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
-    Return<Result> close() override;
-
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> debugDump(const hidl_handle& fd) override;
-#endif
-
-    // Utility methods for extending interfaces.
-    static Result analyzeStatus(const char* funcName, int status);
-    static Result analyzeStatus(const char* funcName, int status,
-                                const std::vector<int>& ignoreErrors);
-
-   private:
-    audio_stream_t* mStream;
-
-    virtual ~Stream();
-
-    // Methods from ParametersUtil.
-    char* halGetParameters(const char* keys) override;
-    int halSetParameters(const char* keysAndValues) override;
-};
-
-template <typename T>
-struct StreamMmap : public RefBase {
-    explicit StreamMmap(T* stream) : mStream(stream) {}
-
-    Return<Result> start();
-    Return<Result> stop();
-    Return<void> createMmapBuffer(int32_t minSizeFrames, size_t frameSize,
-                                  IStream::createMmapBuffer_cb _hidl_cb);
-    Return<void> getMmapPosition(IStream::getMmapPosition_cb _hidl_cb);
-
-   private:
-    StreamMmap() {}
-
-    T* mStream;
-};
-
-template <typename T>
-Return<Result> StreamMmap<T>::start() {
-    if (mStream->start == NULL) return Result::NOT_SUPPORTED;
-    int result = mStream->start(mStream);
-    return Stream::analyzeStatus("start", result);
-}
-
-template <typename T>
-Return<Result> StreamMmap<T>::stop() {
-    if (mStream->stop == NULL) return Result::NOT_SUPPORTED;
-    int result = mStream->stop(mStream);
-    return Stream::analyzeStatus("stop", result);
-}
-
-template <typename T>
-Return<void> StreamMmap<T>::createMmapBuffer(int32_t minSizeFrames, size_t frameSize,
-                                             IStream::createMmapBuffer_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    MmapBufferInfo info;
-    native_handle_t* hidlHandle = nullptr;
-
-    if (mStream->create_mmap_buffer != NULL) {
-        struct audio_mmap_buffer_info halInfo;
-        retval = Stream::analyzeStatus(
-            "create_mmap_buffer", mStream->create_mmap_buffer(mStream, minSizeFrames, &halInfo));
-        if (retval == Result::OK) {
-            hidlHandle = native_handle_create(1, 0);
-            hidlHandle->data[0] = halInfo.shared_memory_fd;
-
-            // Negative buffer size frame is a legacy hack to indicate that the buffer
-            // is shareable to applications before the relevant flag was introduced
-            bool applicationShareable =
-                halInfo.flags & AUDIO_MMAP_APPLICATION_SHAREABLE || halInfo.buffer_size_frames < 0;
-            halInfo.buffer_size_frames = abs(halInfo.buffer_size_frames);
-            info.sharedMemory =  // hidl_memory size must always be positive
-                hidl_memory("audio_buffer", hidlHandle, frameSize * halInfo.buffer_size_frames);
-#ifdef AUDIO_HAL_VERSION_2_0
-            if (applicationShareable) {
-                halInfo.buffer_size_frames *= -1;
-            }
-#else
-            info.flags =
-                halInfo.flags | (applicationShareable ? MmapBufferFlag::APPLICATION_SHAREABLE
-                                                      : MmapBufferFlag::NONE);
-#endif
-            info.bufferSizeFrames = halInfo.buffer_size_frames;
-            info.burstSizeFrames = halInfo.burst_size_frames;
-        }
-    }
-    _hidl_cb(retval, info);
-    if (hidlHandle != nullptr) {
-        native_handle_delete(hidlHandle);
-    }
-    return Void();
-}
-
-template <typename T>
-Return<void> StreamMmap<T>::getMmapPosition(IStream::getMmapPosition_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    MmapPosition position;
-
-    if (mStream->get_mmap_position != NULL) {
-        struct audio_mmap_position halPosition;
-        retval = Stream::analyzeStatus("get_mmap_position",
-                                       mStream->get_mmap_position(mStream, &halPosition));
-        if (retval == Result::OK) {
-            position.timeNanoseconds = halPosition.time_nanoseconds;
-            position.positionFrames = halPosition.position_frames;
-        }
-    }
-    _hidl_cb(retval, position);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h
deleted file mode 100644
index 72d7a37..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <inttypes.h>
-
-#include <android/log.h>
-#include <hardware/audio.h>
-#include <hardware/audio_effect.h>
-#include <media/TypeConverter.h>
-#include <utils/SortedVector.h>
-#include <utils/Vector.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-Stream::Stream(audio_stream_t* stream) : mStream(stream) {}
-
-Stream::~Stream() {
-    mStream = nullptr;
-}
-
-// static
-Result Stream::analyzeStatus(const char* funcName, int status) {
-    return util::analyzeStatus("stream", funcName, status);
-}
-
-
-// static
-Result Stream::analyzeStatus(const char* funcName, int status,
-                             const std::vector<int>& ignoreErrors) {
-    return util::analyzeStatus("stream", funcName, status, ignoreErrors);
-}
-
-char* Stream::halGetParameters(const char* keys) {
-    return mStream->get_parameters(mStream, keys);
-}
-
-int Stream::halSetParameters(const char* keysAndValues) {
-    return mStream->set_parameters(mStream, keysAndValues);
-}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStream follow.
-Return<uint64_t> Stream::getFrameSize() {
-    // Needs to be implemented by interface subclasses. But can't be declared as pure virtual,
-    // since interface subclasses implementation do not inherit from this class.
-    LOG_ALWAYS_FATAL("Stream::getFrameSize is pure abstract");
-    return uint64_t{};
-}
-
-Return<uint64_t> Stream::getFrameCount() {
-    int halFrameCount;
-    Result retval = getParam(AudioParameter::keyFrameCount, &halFrameCount);
-    return retval == Result::OK ? halFrameCount : 0;
-}
-
-Return<uint64_t> Stream::getBufferSize() {
-    return mStream->get_buffer_size(mStream);
-}
-
-Return<uint32_t> Stream::getSampleRate() {
-    return mStream->get_sample_rate(mStream);
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> Stream::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
-    return getSupportedSampleRates(getFormat(), _hidl_cb);
-}
-Return<void> Stream::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
-    return getSupportedChannelMasks(getFormat(), _hidl_cb);
-}
-#endif
-
-Return<void> Stream::getSupportedSampleRates(AudioFormat format,
-                                             getSupportedSampleRates_cb _hidl_cb) {
-    AudioParameter context;
-    context.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), int(format));
-    String8 halListValue;
-    Result result =
-        getParam(AudioParameter::keyStreamSupportedSamplingRates, &halListValue, context);
-    hidl_vec<uint32_t> sampleRates;
-    SortedVector<uint32_t> halSampleRates;
-    if (result == Result::OK) {
-        halSampleRates =
-            samplingRatesFromString(halListValue.string(), AudioParameter::valueListSeparator);
-        sampleRates.setToExternal(halSampleRates.editArray(), halSampleRates.size());
-        // Legacy get_parameter does not return a status_t, thus can not advertise of failure.
-        // Note that this method must succeed (non empty list) if the format is supported.
-        if (sampleRates.size() == 0) {
-            result = Result::NOT_SUPPORTED;
-        }
-    }
-#ifdef AUDIO_HAL_VERSION_2_0
-    _hidl_cb(sampleRates);
-#elif AUDIO_HAL_VERSION_4_0
-    _hidl_cb(result, sampleRates);
-#endif
-    return Void();
-}
-
-Return<void> Stream::getSupportedChannelMasks(AudioFormat format,
-                                              getSupportedChannelMasks_cb _hidl_cb) {
-    AudioParameter context;
-    context.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), int(format));
-    String8 halListValue;
-    Result result = getParam(AudioParameter::keyStreamSupportedChannels, &halListValue, context);
-    hidl_vec<AudioChannelBitfield> channelMasks;
-    SortedVector<audio_channel_mask_t> halChannelMasks;
-    if (result == Result::OK) {
-        halChannelMasks =
-            channelMasksFromString(halListValue.string(), AudioParameter::valueListSeparator);
-        channelMasks.resize(halChannelMasks.size());
-        for (size_t i = 0; i < halChannelMasks.size(); ++i) {
-            channelMasks[i] = AudioChannelBitfield(halChannelMasks[i]);
-        }
-        // Legacy get_parameter does not return a status_t, thus can not advertise of failure.
-        // Note that this method must succeed (non empty list) if the format is supported.
-        if (channelMasks.size() == 0) {
-            result = Result::NOT_SUPPORTED;
-        }
-    }
-#ifdef AUDIO_HAL_VERSION_2_0
-    _hidl_cb(channelMasks);
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    _hidl_cb(result, channelMasks);
-#endif
-    return Void();
-}
-
-Return<Result> Stream::setSampleRate(uint32_t sampleRateHz) {
-    return setParam(AudioParameter::keySamplingRate, static_cast<int>(sampleRateHz));
-}
-
-Return<AudioChannelBitfield> Stream::getChannelMask() {
-    return AudioChannelBitfield(mStream->get_channels(mStream));
-}
-
-Return<Result> Stream::setChannelMask(AudioChannelBitfield mask) {
-    return setParam(AudioParameter::keyChannels, static_cast<int>(mask));
-}
-
-Return<AudioFormat> Stream::getFormat() {
-    return AudioFormat(mStream->get_format(mStream));
-}
-
-Return<void> Stream::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
-    String8 halListValue;
-    Result result = getParam(AudioParameter::keyStreamSupportedFormats, &halListValue);
-    hidl_vec<AudioFormat> formats;
-    Vector<audio_format_t> halFormats;
-    if (result == Result::OK) {
-        halFormats = formatsFromString(halListValue.string(), AudioParameter::valueListSeparator);
-        formats.resize(halFormats.size());
-        for (size_t i = 0; i < halFormats.size(); ++i) {
-            formats[i] = AudioFormat(halFormats[i]);
-        }
-    }
-    _hidl_cb(formats);
-    return Void();
-}
-
-Return<Result> Stream::setFormat(AudioFormat format) {
-    return setParam(AudioParameter::keyFormat, static_cast<int>(format));
-}
-
-Return<void> Stream::getAudioProperties(getAudioProperties_cb _hidl_cb) {
-    uint32_t halSampleRate = mStream->get_sample_rate(mStream);
-    audio_channel_mask_t halMask = mStream->get_channels(mStream);
-    audio_format_t halFormat = mStream->get_format(mStream);
-    _hidl_cb(halSampleRate, AudioChannelBitfield(halMask), AudioFormat(halFormat));
-    return Void();
-}
-
-Return<Result> Stream::addEffect(uint64_t effectId) {
-    effect_handle_t halEffect = EffectMap::getInstance().get(effectId);
-    if (halEffect != NULL) {
-        return analyzeStatus("add_audio_effect", mStream->add_audio_effect(mStream, halEffect));
-    } else {
-        ALOGW("Invalid effect ID passed from client: %" PRIu64, effectId);
-        return Result::INVALID_ARGUMENTS;
-    }
-}
-
-Return<Result> Stream::removeEffect(uint64_t effectId) {
-    effect_handle_t halEffect = EffectMap::getInstance().get(effectId);
-    if (halEffect != NULL) {
-        return analyzeStatus("remove_audio_effect",
-                             mStream->remove_audio_effect(mStream, halEffect));
-    } else {
-        ALOGW("Invalid effect ID passed from client: %" PRIu64, effectId);
-        return Result::INVALID_ARGUMENTS;
-    }
-}
-
-Return<Result> Stream::standby() {
-    return analyzeStatus("standby", mStream->standby(mStream));
-}
-
-Return<Result> Stream::setHwAvSync(uint32_t hwAvSync) {
-    return setParam(AudioParameter::keyStreamHwAvSync, static_cast<int>(hwAvSync));
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<AudioDevice> Stream::getDevice() {
-    int device = 0;
-    Result retval = getParam(AudioParameter::keyRouting, &device);
-    return retval == Result::OK ? static_cast<AudioDevice>(device) : AudioDevice::NONE;
-}
-
-Return<Result> Stream::setDevice(const DeviceAddress& address) {
-    return setParam(AudioParameter::keyRouting, address);
-}
-
-Return<void> Stream::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
-    getParametersImpl({} /* context */, keys, _hidl_cb);
-    return Void();
-}
-
-Return<Result> Stream::setParameters(const hidl_vec<ParameterValue>& parameters) {
-    return setParametersImpl({} /* context */, parameters);
-}
-
-Return<Result> Stream::setConnectedState(const DeviceAddress& address, bool connected) {
-    return setParam(
-        connected ? AudioParameter::keyStreamConnect : AudioParameter::keyStreamDisconnect,
-        address);
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> Stream::getDevices(getDevices_cb _hidl_cb) {
-    int device = 0;
-    Result retval = getParam(AudioParameter::keyRouting, &device);
-    hidl_vec<DeviceAddress> devices;
-    if (retval == Result::OK) {
-        devices.resize(1);
-        devices[0].device = static_cast<AudioDevice>(device);
-    }
-    _hidl_cb(retval, devices);
-    return Void();
-}
-
-Return<Result> Stream::setDevices(const hidl_vec<DeviceAddress>& devices) {
-    // FIXME: can the legacy API set multiple device with address ?
-    if (devices.size() > 1) {
-        return Result::NOT_SUPPORTED;
-    }
-    DeviceAddress address;
-    if (devices.size() == 1) {
-        address = devices[0];
-    } else {
-        address.device = AudioDevice::NONE;
-    }
-    return setParam(AudioParameter::keyRouting, address);
-}
-Return<void> Stream::getParameters(const hidl_vec<ParameterValue>& context,
-                                   const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
-    getParametersImpl(context, keys, _hidl_cb);
-    return Void();
-}
-
-Return<Result> Stream::setParameters(const hidl_vec<ParameterValue>& context,
-                                     const hidl_vec<ParameterValue>& parameters) {
-    return setParametersImpl(context, parameters);
-}
-#endif
-
-Return<Result> Stream::start() {
-    return Result::NOT_SUPPORTED;
-}
-
-Return<Result> Stream::stop() {
-    return Result::NOT_SUPPORTED;
-}
-
-Return<void> Stream::createMmapBuffer(int32_t minSizeFrames __unused,
-                                      createMmapBuffer_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    MmapBufferInfo info;
-    _hidl_cb(retval, info);
-    return Void();
-}
-
-Return<void> Stream::getMmapPosition(getMmapPosition_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    MmapPosition position;
-    _hidl_cb(retval, position);
-    return Void();
-}
-
-Return<Result> Stream::close() {
-    return Result::NOT_SUPPORTED;
-}
-
-Return<void> Stream::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
-    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
-        analyzeStatus("dump", mStream->dump(mStream, fd->data[0]));
-    }
-    return Void();
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> Stream::debugDump(const hidl_handle& fd) {
-    return debug(fd, {} /* options */);
-}
-#endif
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.h b/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.h
deleted file mode 100644
index f226e63..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <atomic>
-#include <memory>
-
-#include <fmq/EventFlag.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-#include <hidl/Status.h>
-#include <utils/Thread.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioChannelMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioFormat;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStream;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamIn;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::ParameterValue;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct StreamIn : public IStreamIn {
-    typedef MessageQueue<ReadParameters, kSynchronizedReadWrite> CommandMQ;
-    typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
-    typedef MessageQueue<ReadStatus, kSynchronizedReadWrite> StatusMQ;
-
-    StreamIn(const sp<Device>& device, audio_stream_in_t* stream);
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStream follow.
-    Return<uint64_t> getFrameSize() override;
-    Return<uint64_t> getFrameCount() override;
-    Return<uint64_t> getBufferSize() override;
-    Return<uint32_t> getSampleRate() override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
-    Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
-#endif
-    Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb);
-    Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb);
-    Return<Result> setSampleRate(uint32_t sampleRateHz) override;
-    Return<AudioChannelBitfield> getChannelMask() override;
-    Return<Result> setChannelMask(AudioChannelBitfield mask) override;
-    Return<AudioFormat> getFormat() override;
-    Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
-    Return<Result> setFormat(AudioFormat format) override;
-    Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
-    Return<Result> addEffect(uint64_t effectId) override;
-    Return<Result> removeEffect(uint64_t effectId) override;
-    Return<Result> standby() override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<AudioDevice> getDevice() override;
-    Return<Result> setDevice(const DeviceAddress& address) override;
-    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
-    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    Return<void> getDevices(getDevices_cb _hidl_cb) override;
-    Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override;
-    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
-                               const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
-                                 const hidl_vec<ParameterValue>& parameters) override;
-#endif
-    Return<Result> setHwAvSync(uint32_t hwAvSync) override;
-    Return<Result> close() override;
-
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> debugDump(const hidl_handle& fd) override;
-#endif
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamIn follow.
-    Return<void> getAudioSource(getAudioSource_cb _hidl_cb) override;
-    Return<Result> setGain(float gain) override;
-    Return<void> prepareForReading(uint32_t frameSize, uint32_t framesCount,
-                                   prepareForReading_cb _hidl_cb) override;
-    Return<uint32_t> getInputFramesLost() override;
-    Return<void> getCapturePosition(getCapturePosition_cb _hidl_cb) override;
-    Return<Result> start() override;
-    Return<Result> stop() override;
-    Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
-    Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
-#ifdef AUDIO_HAL_VERSION_4_0
-    Return<void> updateSinkMetadata(const SinkMetadata& sinkMetadata) override;
-    Return<void> getActiveMicrophones(getActiveMicrophones_cb _hidl_cb) override;
-#endif
-
-    static Result getCapturePositionImpl(audio_stream_in_t* stream, uint64_t* frames,
-                                         uint64_t* time);
-
-   private:
-    bool mIsClosed;
-    const sp<Device> mDevice;
-    audio_stream_in_t* mStream;
-    const sp<Stream> mStreamCommon;
-    const sp<StreamMmap<audio_stream_in_t>> mStreamMmap;
-    std::unique_ptr<CommandMQ> mCommandMQ;
-    std::unique_ptr<DataMQ> mDataMQ;
-    std::unique_ptr<StatusMQ> mStatusMQ;
-    EventFlag* mEfGroup;
-    std::atomic<bool> mStopReadThread;
-    sp<Thread> mReadThread;
-
-    virtual ~StreamIn();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h
deleted file mode 100644
index 64c85ab..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-//#define LOG_NDEBUG 0
-#define ATRACE_TAG ATRACE_TAG_AUDIO
-
-#include <android/log.h>
-#include <hardware/audio.h>
-#include <utils/Trace.h>
-#include <memory>
-
-using ::android::hardware::audio::AUDIO_HAL_VERSION::MessageQueueFlagBits;
-#include "Conversions.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::ThreadInfo;
-
-namespace {
-
-class ReadThread : public Thread {
-   public:
-    // ReadThread's lifespan never exceeds StreamIn's lifespan.
-    ReadThread(std::atomic<bool>* stop, audio_stream_in_t* stream, StreamIn::CommandMQ* commandMQ,
-               StreamIn::DataMQ* dataMQ, StreamIn::StatusMQ* statusMQ, EventFlag* efGroup)
-        : Thread(false /*canCallJava*/),
-          mStop(stop),
-          mStream(stream),
-          mCommandMQ(commandMQ),
-          mDataMQ(dataMQ),
-          mStatusMQ(statusMQ),
-          mEfGroup(efGroup),
-          mBuffer(nullptr) {}
-    bool init() {
-        mBuffer.reset(new (std::nothrow) uint8_t[mDataMQ->getQuantumCount()]);
-        return mBuffer != nullptr;
-    }
-    virtual ~ReadThread() {}
-
-   private:
-    std::atomic<bool>* mStop;
-    audio_stream_in_t* mStream;
-    StreamIn::CommandMQ* mCommandMQ;
-    StreamIn::DataMQ* mDataMQ;
-    StreamIn::StatusMQ* mStatusMQ;
-    EventFlag* mEfGroup;
-    std::unique_ptr<uint8_t[]> mBuffer;
-    IStreamIn::ReadParameters mParameters;
-    IStreamIn::ReadStatus mStatus;
-
-    bool threadLoop() override;
-
-    void doGetCapturePosition();
-    void doRead();
-};
-
-void ReadThread::doRead() {
-    size_t availableToWrite = mDataMQ->availableToWrite();
-    size_t requestedToRead = mParameters.params.read;
-    if (requestedToRead > availableToWrite) {
-        ALOGW(
-            "truncating read data from %d to %d due to insufficient data queue "
-            "space",
-            (int32_t)requestedToRead, (int32_t)availableToWrite);
-        requestedToRead = availableToWrite;
-    }
-    ssize_t readResult = mStream->read(mStream, &mBuffer[0], requestedToRead);
-    mStatus.retval = Result::OK;
-    if (readResult >= 0) {
-        mStatus.reply.read = readResult;
-        if (!mDataMQ->write(&mBuffer[0], readResult)) {
-            ALOGW("data message queue write failed");
-        }
-    } else {
-        mStatus.retval = Stream::analyzeStatus("read", readResult);
-    }
-}
-
-void ReadThread::doGetCapturePosition() {
-    mStatus.retval = StreamIn::getCapturePositionImpl(
-        mStream, &mStatus.reply.capturePosition.frames, &mStatus.reply.capturePosition.time);
-}
-
-bool ReadThread::threadLoop() {
-    // This implementation doesn't return control back to the Thread until it
-    // decides to stop,
-    // as the Thread uses mutexes, and this can lead to priority inversion.
-    while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
-        uint32_t efState = 0;
-        mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL), &efState);
-        if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL))) {
-            continue;  // Nothing to do.
-        }
-        if (!mCommandMQ->read(&mParameters)) {
-            continue;  // Nothing to do.
-        }
-        mStatus.replyTo = mParameters.command;
-        switch (mParameters.command) {
-            case IStreamIn::ReadCommand::READ:
-                doRead();
-                break;
-            case IStreamIn::ReadCommand::GET_CAPTURE_POSITION:
-                doGetCapturePosition();
-                break;
-            default:
-                ALOGE("Unknown read thread command code %d", mParameters.command);
-                mStatus.retval = Result::NOT_SUPPORTED;
-                break;
-        }
-        if (!mStatusMQ->write(&mStatus)) {
-            ALOGW("status message queue write failed");
-        }
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
-    }
-
-    return false;
-}
-
-}  // namespace
-
-StreamIn::StreamIn(const sp<Device>& device, audio_stream_in_t* stream)
-    : mIsClosed(false),
-      mDevice(device),
-      mStream(stream),
-      mStreamCommon(new Stream(&stream->common)),
-      mStreamMmap(new StreamMmap<audio_stream_in_t>(stream)),
-      mEfGroup(nullptr),
-      mStopReadThread(false) {}
-
-StreamIn::~StreamIn() {
-    ATRACE_CALL();
-    close();
-    if (mReadThread.get()) {
-        ATRACE_NAME("mReadThread->join");
-        status_t status = mReadThread->join();
-        ALOGE_IF(status, "read thread exit error: %s", strerror(-status));
-    }
-    if (mEfGroup) {
-        status_t status = EventFlag::deleteEventFlag(&mEfGroup);
-        ALOGE_IF(status, "read MQ event flag deletion error: %s", strerror(-status));
-    }
-    mDevice->closeInputStream(mStream);
-    mStream = nullptr;
-}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStream follow.
-Return<uint64_t> StreamIn::getFrameSize() {
-    return audio_stream_in_frame_size(mStream);
-}
-
-Return<uint64_t> StreamIn::getFrameCount() {
-    return mStreamCommon->getFrameCount();
-}
-
-Return<uint64_t> StreamIn::getBufferSize() {
-    return mStreamCommon->getBufferSize();
-}
-
-Return<uint32_t> StreamIn::getSampleRate() {
-    return mStreamCommon->getSampleRate();
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> StreamIn::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
-    return mStreamCommon->getSupportedChannelMasks(_hidl_cb);
-}
-Return<void> StreamIn::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
-    return mStreamCommon->getSupportedSampleRates(_hidl_cb);
-}
-#endif
-
-Return<void> StreamIn::getSupportedChannelMasks(AudioFormat format,
-                                                getSupportedChannelMasks_cb _hidl_cb) {
-    return mStreamCommon->getSupportedChannelMasks(format, _hidl_cb);
-}
-Return<void> StreamIn::getSupportedSampleRates(AudioFormat format,
-                                               getSupportedSampleRates_cb _hidl_cb) {
-    return mStreamCommon->getSupportedSampleRates(format, _hidl_cb);
-}
-
-Return<Result> StreamIn::setSampleRate(uint32_t sampleRateHz) {
-    return mStreamCommon->setSampleRate(sampleRateHz);
-}
-
-Return<AudioChannelBitfield> StreamIn::getChannelMask() {
-    return mStreamCommon->getChannelMask();
-}
-
-Return<Result> StreamIn::setChannelMask(AudioChannelBitfield mask) {
-    return mStreamCommon->setChannelMask(mask);
-}
-
-Return<AudioFormat> StreamIn::getFormat() {
-    return mStreamCommon->getFormat();
-}
-
-Return<void> StreamIn::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
-    return mStreamCommon->getSupportedFormats(_hidl_cb);
-}
-
-Return<Result> StreamIn::setFormat(AudioFormat format) {
-    return mStreamCommon->setFormat(format);
-}
-
-Return<void> StreamIn::getAudioProperties(getAudioProperties_cb _hidl_cb) {
-    return mStreamCommon->getAudioProperties(_hidl_cb);
-}
-
-Return<Result> StreamIn::addEffect(uint64_t effectId) {
-    return mStreamCommon->addEffect(effectId);
-}
-
-Return<Result> StreamIn::removeEffect(uint64_t effectId) {
-    return mStreamCommon->removeEffect(effectId);
-}
-
-Return<Result> StreamIn::standby() {
-    return mStreamCommon->standby();
-}
-
-Return<Result> StreamIn::setHwAvSync(uint32_t hwAvSync) {
-    return mStreamCommon->setHwAvSync(hwAvSync);
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<Result> StreamIn::setConnectedState(const DeviceAddress& address, bool connected) {
-    return mStreamCommon->setConnectedState(address, connected);
-}
-
-Return<AudioDevice> StreamIn::getDevice() {
-    return mStreamCommon->getDevice();
-}
-
-Return<Result> StreamIn::setDevice(const DeviceAddress& address) {
-    return mStreamCommon->setDevice(address);
-}
-
-Return<void> StreamIn::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
-    return mStreamCommon->getParameters(keys, _hidl_cb);
-}
-
-Return<Result> StreamIn::setParameters(const hidl_vec<ParameterValue>& parameters) {
-    return mStreamCommon->setParameters(parameters);
-}
-
-Return<void> StreamIn::debugDump(const hidl_handle& fd) {
-    return mStreamCommon->debugDump(fd);
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> StreamIn::getDevices(getDevices_cb _hidl_cb) {
-    return mStreamCommon->getDevices(_hidl_cb);
-}
-
-Return<Result> StreamIn::setDevices(const hidl_vec<DeviceAddress>& devices) {
-    return mStreamCommon->setDevices(devices);
-}
-Return<void> StreamIn::getParameters(const hidl_vec<ParameterValue>& context,
-                                     const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
-    return mStreamCommon->getParameters(context, keys, _hidl_cb);
-}
-
-Return<Result> StreamIn::setParameters(const hidl_vec<ParameterValue>& context,
-                                       const hidl_vec<ParameterValue>& parameters) {
-    return mStreamCommon->setParameters(context, parameters);
-}
-#endif
-
-Return<Result> StreamIn::start() {
-    return mStreamMmap->start();
-}
-
-Return<Result> StreamIn::stop() {
-    return mStreamMmap->stop();
-}
-
-Return<void> StreamIn::createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) {
-    return mStreamMmap->createMmapBuffer(minSizeFrames, audio_stream_in_frame_size(mStream),
-                                         _hidl_cb);
-}
-
-Return<void> StreamIn::getMmapPosition(getMmapPosition_cb _hidl_cb) {
-    return mStreamMmap->getMmapPosition(_hidl_cb);
-}
-
-Return<Result> StreamIn::close() {
-    if (mIsClosed) return Result::INVALID_STATE;
-    mIsClosed = true;
-    if (mReadThread.get()) {
-        mStopReadThread.store(true, std::memory_order_release);
-    }
-    if (mEfGroup) {
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
-    }
-    return Result::OK;
-}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamIn follow.
-Return<void> StreamIn::getAudioSource(getAudioSource_cb _hidl_cb) {
-    int halSource;
-    Result retval = mStreamCommon->getParam(AudioParameter::keyInputSource, &halSource);
-    AudioSource source(AudioSource::DEFAULT);
-    if (retval == Result::OK) {
-        source = AudioSource(halSource);
-    }
-    _hidl_cb(retval, source);
-    return Void();
-}
-
-Return<Result> StreamIn::setGain(float gain) {
-    if (!isGainNormalized(gain)) {
-        ALOGW("Can not set a stream input gain (%f) outside [0,1]", gain);
-        return Result::INVALID_ARGUMENTS;
-    }
-    return Stream::analyzeStatus("set_gain", mStream->set_gain(mStream, gain));
-}
-
-Return<void> StreamIn::prepareForReading(uint32_t frameSize, uint32_t framesCount,
-                                         prepareForReading_cb _hidl_cb) {
-    status_t status;
-    ThreadInfo threadInfo = {0, 0};
-
-    // Wrap the _hidl_cb to return an error
-    auto sendError = [&threadInfo, &_hidl_cb](Result result) {
-        _hidl_cb(result, CommandMQ::Descriptor(), DataMQ::Descriptor(), StatusMQ::Descriptor(),
-                 threadInfo);
-
-    };
-
-    // Create message queues.
-    if (mDataMQ) {
-        ALOGE("the client attempts to call prepareForReading twice");
-        sendError(Result::INVALID_STATE);
-        return Void();
-    }
-    std::unique_ptr<CommandMQ> tempCommandMQ(new CommandMQ(1));
-
-    // Check frameSize and framesCount
-    if (frameSize == 0 || framesCount == 0) {
-        ALOGE("Null frameSize (%u) or framesCount (%u)", frameSize, framesCount);
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-
-    if (frameSize > Stream::MAX_BUFFER_SIZE / framesCount) {
-        ALOGE("Buffer too big: %u*%u bytes > MAX_BUFFER_SIZE (%u)", frameSize, framesCount,
-              Stream::MAX_BUFFER_SIZE);
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    std::unique_ptr<DataMQ> tempDataMQ(new DataMQ(frameSize * framesCount, true /* EventFlag */));
-
-    std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1));
-    if (!tempCommandMQ->isValid() || !tempDataMQ->isValid() || !tempStatusMQ->isValid()) {
-        ALOGE_IF(!tempCommandMQ->isValid(), "command MQ is invalid");
-        ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
-        ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    EventFlag* tempRawEfGroup{};
-    status = EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &tempRawEfGroup);
-    std::unique_ptr<EventFlag, void (*)(EventFlag*)> tempElfGroup(
-        tempRawEfGroup, [](auto* ef) { EventFlag::deleteEventFlag(&ef); });
-    if (status != OK || !tempElfGroup) {
-        ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-
-    // Create and launch the thread.
-    auto tempReadThread =
-        std::make_unique<ReadThread>(&mStopReadThread, mStream, tempCommandMQ.get(),
-                                     tempDataMQ.get(), tempStatusMQ.get(), tempElfGroup.get());
-    if (!tempReadThread->init()) {
-        ALOGW("failed to start reader thread: %s", strerror(-status));
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    status = tempReadThread->run("reader", PRIORITY_URGENT_AUDIO);
-    if (status != OK) {
-        ALOGW("failed to start reader thread: %s", strerror(-status));
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-
-    mCommandMQ = std::move(tempCommandMQ);
-    mDataMQ = std::move(tempDataMQ);
-    mStatusMQ = std::move(tempStatusMQ);
-    mReadThread = tempReadThread.release();
-    mEfGroup = tempElfGroup.release();
-    threadInfo.pid = getpid();
-    threadInfo.tid = mReadThread->getTid();
-    _hidl_cb(Result::OK, *mCommandMQ->getDesc(), *mDataMQ->getDesc(), *mStatusMQ->getDesc(),
-             threadInfo);
-    return Void();
-}
-
-Return<uint32_t> StreamIn::getInputFramesLost() {
-    return mStream->get_input_frames_lost(mStream);
-}
-
-// static
-Result StreamIn::getCapturePositionImpl(audio_stream_in_t* stream, uint64_t* frames,
-                                        uint64_t* time) {
-    // HAL may have a stub function, always returning ENOSYS, don't
-    // spam the log in this case.
-    static const std::vector<int> ignoredErrors{ENOSYS};
-    Result retval(Result::NOT_SUPPORTED);
-    if (stream->get_capture_position == NULL) return retval;
-    int64_t halFrames, halTime;
-    retval = Stream::analyzeStatus("get_capture_position",
-                                   stream->get_capture_position(stream, &halFrames, &halTime),
-                                   ignoredErrors);
-    if (retval == Result::OK) {
-        *frames = halFrames;
-        *time = halTime;
-    }
-    return retval;
-};
-
-Return<void> StreamIn::getCapturePosition(getCapturePosition_cb _hidl_cb) {
-    uint64_t frames = 0, time = 0;
-    Result retval = getCapturePositionImpl(mStream, &frames, &time);
-    _hidl_cb(retval, frames, time);
-    return Void();
-}
-
-Return<void> StreamIn::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
-    return mStreamCommon->debug(fd, options);
-}
-
-#ifdef AUDIO_HAL_VERSION_4_0
-Return<void> StreamIn::updateSinkMetadata(const SinkMetadata& sinkMetadata) {
-    if (mStream->update_sink_metadata == nullptr) {
-        return Void();  // not supported by the HAL
-    }
-    std::vector<record_track_metadata> halTracks;
-    halTracks.reserve(sinkMetadata.tracks.size());
-    for (auto& metadata : sinkMetadata.tracks) {
-        halTracks.push_back(
-            {.source = static_cast<audio_source_t>(metadata.source), .gain = metadata.gain});
-    }
-    const sink_metadata_t halMetadata = {
-        .track_count = halTracks.size(), .tracks = halTracks.data(),
-    };
-    mStream->update_sink_metadata(mStream, &halMetadata);
-    return Void();
-}
-
-Return<void> StreamIn::getActiveMicrophones(getActiveMicrophones_cb _hidl_cb) {
-    Result retval = Result::NOT_SUPPORTED;
-    size_t actual_mics = AUDIO_MICROPHONE_MAX_COUNT;
-    audio_microphone_characteristic_t mic_array[AUDIO_MICROPHONE_MAX_COUNT];
-
-    hidl_vec<MicrophoneInfo> microphones;
-    if (mStream->get_active_microphones != NULL &&
-        mStream->get_active_microphones(mStream, &mic_array[0], &actual_mics) == 0) {
-        microphones.resize(actual_mics);
-        for (size_t i = 0; i < actual_mics; ++i) {
-            halToMicrophoneCharacteristics(&microphones[i], mic_array[i]);
-        }
-        retval = Result::OK;
-    }
-
-    _hidl_cb(retval, microphones);
-    return Void();
-}
-#endif
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.h b/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.h
deleted file mode 100644
index 134d7b9..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <atomic>
-#include <memory>
-
-#include <fmq/EventFlag.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-#include <hidl/Status.h>
-#include <utils/Thread.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioChannelMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioFormat;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::AudioDrain;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::DeviceAddress;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStream;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamOut;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamOutCallback;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::ParameterValue;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::audio::AUDIO_HAL_VERSION::TimeSpec;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct StreamOut : public IStreamOut {
-    typedef MessageQueue<WriteCommand, kSynchronizedReadWrite> CommandMQ;
-    typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
-    typedef MessageQueue<WriteStatus, kSynchronizedReadWrite> StatusMQ;
-
-    StreamOut(const sp<Device>& device, audio_stream_out_t* stream);
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStream follow.
-    Return<uint64_t> getFrameSize() override;
-    Return<uint64_t> getFrameCount() override;
-    Return<uint64_t> getBufferSize() override;
-    Return<uint32_t> getSampleRate() override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
-    Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
-#endif
-    Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb);
-    Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb);
-    Return<Result> setSampleRate(uint32_t sampleRateHz) override;
-    Return<AudioChannelBitfield> getChannelMask() override;
-    Return<Result> setChannelMask(AudioChannelBitfield mask) override;
-    Return<AudioFormat> getFormat() override;
-    Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
-    Return<Result> setFormat(AudioFormat format) override;
-    Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
-    Return<Result> addEffect(uint64_t effectId) override;
-    Return<Result> removeEffect(uint64_t effectId) override;
-    Return<Result> standby() override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<AudioDevice> getDevice() override;
-    Return<Result> setDevice(const DeviceAddress& address) override;
-    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
-    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
-#elif defined(AUDIO_HAL_VERSION_4_0)
-    Return<void> getDevices(getDevices_cb _hidl_cb) override;
-    Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override;
-    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
-                               const hidl_vec<hidl_string>& keys,
-                               getParameters_cb _hidl_cb) override;
-    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
-                                 const hidl_vec<ParameterValue>& parameters) override;
-#endif
-    Return<Result> setHwAvSync(uint32_t hwAvSync) override;
-    Return<Result> close() override;
-
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
-#ifdef AUDIO_HAL_VERSION_2_0
-    Return<void> debugDump(const hidl_handle& fd) override;
-#endif
-
-    // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamOut follow.
-    Return<uint32_t> getLatency() override;
-    Return<Result> setVolume(float left, float right) override;
-    Return<void> prepareForWriting(uint32_t frameSize, uint32_t framesCount,
-                                   prepareForWriting_cb _hidl_cb) override;
-    Return<void> getRenderPosition(getRenderPosition_cb _hidl_cb) override;
-    Return<void> getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) override;
-    Return<Result> setCallback(const sp<IStreamOutCallback>& callback) override;
-    Return<Result> clearCallback() override;
-    Return<void> supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) override;
-    Return<Result> pause() override;
-    Return<Result> resume() override;
-    Return<bool> supportsDrain() override;
-    Return<Result> drain(AudioDrain type) override;
-    Return<Result> flush() override;
-    Return<void> getPresentationPosition(getPresentationPosition_cb _hidl_cb) override;
-    Return<Result> start() override;
-    Return<Result> stop() override;
-    Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
-    Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
-#ifdef AUDIO_HAL_VERSION_4_0
-    Return<void> updateSourceMetadata(const SourceMetadata& sourceMetadata) override;
-    Return<Result> selectPresentation(int32_t presentationId, int32_t programId) override;
-#endif
-
-    static Result getPresentationPositionImpl(audio_stream_out_t* stream, uint64_t* frames,
-                                              TimeSpec* timeStamp);
-
-   private:
-    bool mIsClosed;
-    const sp<Device> mDevice;
-    audio_stream_out_t* mStream;
-    const sp<Stream> mStreamCommon;
-    const sp<StreamMmap<audio_stream_out_t>> mStreamMmap;
-    sp<IStreamOutCallback> mCallback;
-    std::unique_ptr<CommandMQ> mCommandMQ;
-    std::unique_ptr<DataMQ> mDataMQ;
-    std::unique_ptr<StatusMQ> mStatusMQ;
-    EventFlag* mEfGroup;
-    std::atomic<bool> mStopWriteThread;
-    sp<Thread> mWriteThread;
-
-    virtual ~StreamOut();
-
-    static int asyncCallback(stream_callback_event_t event, void* param, void* cookie);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h
deleted file mode 100644
index 6fb157f..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h
+++ /dev/null
@@ -1,577 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-//#define LOG_NDEBUG 0
-#define ATRACE_TAG ATRACE_TAG_AUDIO
-
-#include <memory>
-
-#include <android/log.h>
-#include <hardware/audio.h>
-#include <utils/Trace.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::ThreadInfo;
-
-namespace {
-
-class WriteThread : public Thread {
-   public:
-    // WriteThread's lifespan never exceeds StreamOut's lifespan.
-    WriteThread(std::atomic<bool>* stop, audio_stream_out_t* stream,
-                StreamOut::CommandMQ* commandMQ, StreamOut::DataMQ* dataMQ,
-                StreamOut::StatusMQ* statusMQ, EventFlag* efGroup)
-        : Thread(false /*canCallJava*/),
-          mStop(stop),
-          mStream(stream),
-          mCommandMQ(commandMQ),
-          mDataMQ(dataMQ),
-          mStatusMQ(statusMQ),
-          mEfGroup(efGroup),
-          mBuffer(nullptr) {}
-    bool init() {
-        mBuffer.reset(new (std::nothrow) uint8_t[mDataMQ->getQuantumCount()]);
-        return mBuffer != nullptr;
-    }
-    virtual ~WriteThread() {}
-
-   private:
-    std::atomic<bool>* mStop;
-    audio_stream_out_t* mStream;
-    StreamOut::CommandMQ* mCommandMQ;
-    StreamOut::DataMQ* mDataMQ;
-    StreamOut::StatusMQ* mStatusMQ;
-    EventFlag* mEfGroup;
-    std::unique_ptr<uint8_t[]> mBuffer;
-    IStreamOut::WriteStatus mStatus;
-
-    bool threadLoop() override;
-
-    void doGetLatency();
-    void doGetPresentationPosition();
-    void doWrite();
-};
-
-void WriteThread::doWrite() {
-    const size_t availToRead = mDataMQ->availableToRead();
-    mStatus.retval = Result::OK;
-    mStatus.reply.written = 0;
-    if (mDataMQ->read(&mBuffer[0], availToRead)) {
-        ssize_t writeResult = mStream->write(mStream, &mBuffer[0], availToRead);
-        if (writeResult >= 0) {
-            mStatus.reply.written = writeResult;
-        } else {
-            mStatus.retval = Stream::analyzeStatus("write", writeResult);
-        }
-    }
-}
-
-void WriteThread::doGetPresentationPosition() {
-    mStatus.retval =
-        StreamOut::getPresentationPositionImpl(mStream, &mStatus.reply.presentationPosition.frames,
-                                               &mStatus.reply.presentationPosition.timeStamp);
-}
-
-void WriteThread::doGetLatency() {
-    mStatus.retval = Result::OK;
-    mStatus.reply.latencyMs = mStream->get_latency(mStream);
-}
-
-bool WriteThread::threadLoop() {
-    // This implementation doesn't return control back to the Thread until it
-    // decides to stop,
-    // as the Thread uses mutexes, and this can lead to priority inversion.
-    while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
-        uint32_t efState = 0;
-        mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
-        if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY))) {
-            continue;  // Nothing to do.
-        }
-        if (!mCommandMQ->read(&mStatus.replyTo)) {
-            continue;  // Nothing to do.
-        }
-        switch (mStatus.replyTo) {
-            case IStreamOut::WriteCommand::WRITE:
-                doWrite();
-                break;
-            case IStreamOut::WriteCommand::GET_PRESENTATION_POSITION:
-                doGetPresentationPosition();
-                break;
-            case IStreamOut::WriteCommand::GET_LATENCY:
-                doGetLatency();
-                break;
-            default:
-                ALOGE("Unknown write thread command code %d", mStatus.replyTo);
-                mStatus.retval = Result::NOT_SUPPORTED;
-                break;
-        }
-        if (!mStatusMQ->write(&mStatus)) {
-            ALOGE("status message queue write failed");
-        }
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
-    }
-
-    return false;
-}
-
-}  // namespace
-
-StreamOut::StreamOut(const sp<Device>& device, audio_stream_out_t* stream)
-    : mIsClosed(false),
-      mDevice(device),
-      mStream(stream),
-      mStreamCommon(new Stream(&stream->common)),
-      mStreamMmap(new StreamMmap<audio_stream_out_t>(stream)),
-      mEfGroup(nullptr),
-      mStopWriteThread(false) {}
-
-StreamOut::~StreamOut() {
-    ATRACE_CALL();
-    close();
-    if (mWriteThread.get()) {
-        ATRACE_NAME("mWriteThread->join");
-        status_t status = mWriteThread->join();
-        ALOGE_IF(status, "write thread exit error: %s", strerror(-status));
-    }
-    if (mEfGroup) {
-        status_t status = EventFlag::deleteEventFlag(&mEfGroup);
-        ALOGE_IF(status, "write MQ event flag deletion error: %s", strerror(-status));
-    }
-    mCallback.clear();
-    mDevice->closeOutputStream(mStream);
-    // Closing the output stream in the HAL waits for the callback to finish,
-    // and joins the callback thread. Thus is it guaranteed that the callback
-    // thread will not be accessing our object anymore.
-    mStream = nullptr;
-}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStream follow.
-Return<uint64_t> StreamOut::getFrameSize() {
-    return audio_stream_out_frame_size(mStream);
-}
-
-Return<uint64_t> StreamOut::getFrameCount() {
-    return mStreamCommon->getFrameCount();
-}
-
-Return<uint64_t> StreamOut::getBufferSize() {
-    return mStreamCommon->getBufferSize();
-}
-
-Return<uint32_t> StreamOut::getSampleRate() {
-    return mStreamCommon->getSampleRate();
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<void> StreamOut::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
-    return mStreamCommon->getSupportedChannelMasks(_hidl_cb);
-}
-Return<void> StreamOut::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
-    return mStreamCommon->getSupportedSampleRates(_hidl_cb);
-}
-#endif
-
-Return<void> StreamOut::getSupportedChannelMasks(AudioFormat format,
-                                                 getSupportedChannelMasks_cb _hidl_cb) {
-    return mStreamCommon->getSupportedChannelMasks(format, _hidl_cb);
-}
-Return<void> StreamOut::getSupportedSampleRates(AudioFormat format,
-                                                getSupportedSampleRates_cb _hidl_cb) {
-    return mStreamCommon->getSupportedSampleRates(format, _hidl_cb);
-}
-
-Return<Result> StreamOut::setSampleRate(uint32_t sampleRateHz) {
-    return mStreamCommon->setSampleRate(sampleRateHz);
-}
-
-Return<AudioChannelBitfield> StreamOut::getChannelMask() {
-    return mStreamCommon->getChannelMask();
-}
-
-Return<Result> StreamOut::setChannelMask(AudioChannelBitfield mask) {
-    return mStreamCommon->setChannelMask(mask);
-}
-
-Return<AudioFormat> StreamOut::getFormat() {
-    return mStreamCommon->getFormat();
-}
-
-Return<void> StreamOut::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
-    return mStreamCommon->getSupportedFormats(_hidl_cb);
-}
-
-Return<Result> StreamOut::setFormat(AudioFormat format) {
-    return mStreamCommon->setFormat(format);
-}
-
-Return<void> StreamOut::getAudioProperties(getAudioProperties_cb _hidl_cb) {
-    return mStreamCommon->getAudioProperties(_hidl_cb);
-}
-
-Return<Result> StreamOut::addEffect(uint64_t effectId) {
-    return mStreamCommon->addEffect(effectId);
-}
-
-Return<Result> StreamOut::removeEffect(uint64_t effectId) {
-    return mStreamCommon->removeEffect(effectId);
-}
-
-Return<Result> StreamOut::standby() {
-    return mStreamCommon->standby();
-}
-
-Return<Result> StreamOut::setHwAvSync(uint32_t hwAvSync) {
-    return mStreamCommon->setHwAvSync(hwAvSync);
-}
-
-#ifdef AUDIO_HAL_VERSION_2_0
-Return<Result> StreamOut::setConnectedState(const DeviceAddress& address, bool connected) {
-    return mStreamCommon->setConnectedState(address, connected);
-}
-
-Return<AudioDevice> StreamOut::getDevice() {
-    return mStreamCommon->getDevice();
-}
-
-Return<Result> StreamOut::setDevice(const DeviceAddress& address) {
-    return mStreamCommon->setDevice(address);
-}
-
-Return<void> StreamOut::getParameters(const hidl_vec<hidl_string>& keys,
-                                      getParameters_cb _hidl_cb) {
-    return mStreamCommon->getParameters(keys, _hidl_cb);
-}
-
-Return<Result> StreamOut::setParameters(const hidl_vec<ParameterValue>& parameters) {
-    return mStreamCommon->setParameters(parameters);
-}
-
-Return<void> StreamOut::debugDump(const hidl_handle& fd) {
-    return mStreamCommon->debugDump(fd);
-}
-#elif defined(AUDIO_HAL_VERSION_4_0)
-Return<void> StreamOut::getDevices(getDevices_cb _hidl_cb) {
-    return mStreamCommon->getDevices(_hidl_cb);
-}
-
-Return<Result> StreamOut::setDevices(const hidl_vec<DeviceAddress>& devices) {
-    return mStreamCommon->setDevices(devices);
-}
-Return<void> StreamOut::getParameters(const hidl_vec<ParameterValue>& context,
-                                      const hidl_vec<hidl_string>& keys,
-                                      getParameters_cb _hidl_cb) {
-    return mStreamCommon->getParameters(context, keys, _hidl_cb);
-}
-
-Return<Result> StreamOut::setParameters(const hidl_vec<ParameterValue>& context,
-                                        const hidl_vec<ParameterValue>& parameters) {
-    return mStreamCommon->setParameters(context, parameters);
-}
-#endif
-
-Return<Result> StreamOut::close() {
-    if (mIsClosed) return Result::INVALID_STATE;
-    mIsClosed = true;
-    if (mWriteThread.get()) {
-        mStopWriteThread.store(true, std::memory_order_release);
-    }
-    if (mEfGroup) {
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
-    }
-    return Result::OK;
-}
-
-// Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IStreamOut follow.
-Return<uint32_t> StreamOut::getLatency() {
-    return mStream->get_latency(mStream);
-}
-
-Return<Result> StreamOut::setVolume(float left, float right) {
-    if (mStream->set_volume == NULL) {
-        return Result::NOT_SUPPORTED;
-    }
-    if (!isGainNormalized(left)) {
-        ALOGW("Can not set a stream output volume {%f, %f} outside [0,1]", left, right);
-        return Result::INVALID_ARGUMENTS;
-    }
-    return Stream::analyzeStatus("set_volume", mStream->set_volume(mStream, left, right));
-}
-
-Return<void> StreamOut::prepareForWriting(uint32_t frameSize, uint32_t framesCount,
-                                          prepareForWriting_cb _hidl_cb) {
-    status_t status;
-    ThreadInfo threadInfo = {0, 0};
-
-    // Wrap the _hidl_cb to return an error
-    auto sendError = [&threadInfo, &_hidl_cb](Result result) {
-        _hidl_cb(result, CommandMQ::Descriptor(), DataMQ::Descriptor(), StatusMQ::Descriptor(),
-                 threadInfo);
-
-    };
-
-    // Create message queues.
-    if (mDataMQ) {
-        ALOGE("the client attempts to call prepareForWriting twice");
-        sendError(Result::INVALID_STATE);
-        return Void();
-    }
-    std::unique_ptr<CommandMQ> tempCommandMQ(new CommandMQ(1));
-
-    // Check frameSize and framesCount
-    if (frameSize == 0 || framesCount == 0) {
-        ALOGE("Null frameSize (%u) or framesCount (%u)", frameSize, framesCount);
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    if (frameSize > Stream::MAX_BUFFER_SIZE / framesCount) {
-        ALOGE("Buffer too big: %u*%u bytes > MAX_BUFFER_SIZE (%u)", frameSize, framesCount,
-              Stream::MAX_BUFFER_SIZE);
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    std::unique_ptr<DataMQ> tempDataMQ(new DataMQ(frameSize * framesCount, true /* EventFlag */));
-
-    std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1));
-    if (!tempCommandMQ->isValid() || !tempDataMQ->isValid() || !tempStatusMQ->isValid()) {
-        ALOGE_IF(!tempCommandMQ->isValid(), "command MQ is invalid");
-        ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
-        ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    EventFlag* tempRawEfGroup{};
-    status = EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &tempRawEfGroup);
-    std::unique_ptr<EventFlag, void (*)(EventFlag*)> tempElfGroup(
-        tempRawEfGroup, [](auto* ef) { EventFlag::deleteEventFlag(&ef); });
-    if (status != OK || !tempElfGroup) {
-        ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-
-    // Create and launch the thread.
-    auto tempWriteThread =
-        std::make_unique<WriteThread>(&mStopWriteThread, mStream, tempCommandMQ.get(),
-                                      tempDataMQ.get(), tempStatusMQ.get(), tempElfGroup.get());
-    if (!tempWriteThread->init()) {
-        ALOGW("failed to start writer thread: %s", strerror(-status));
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-    status = tempWriteThread->run("writer", PRIORITY_URGENT_AUDIO);
-    if (status != OK) {
-        ALOGW("failed to start writer thread: %s", strerror(-status));
-        sendError(Result::INVALID_ARGUMENTS);
-        return Void();
-    }
-
-    mCommandMQ = std::move(tempCommandMQ);
-    mDataMQ = std::move(tempDataMQ);
-    mStatusMQ = std::move(tempStatusMQ);
-    mWriteThread = tempWriteThread.release();
-    mEfGroup = tempElfGroup.release();
-    threadInfo.pid = getpid();
-    threadInfo.tid = mWriteThread->getTid();
-    _hidl_cb(Result::OK, *mCommandMQ->getDesc(), *mDataMQ->getDesc(), *mStatusMQ->getDesc(),
-             threadInfo);
-    return Void();
-}
-
-Return<void> StreamOut::getRenderPosition(getRenderPosition_cb _hidl_cb) {
-    uint32_t halDspFrames;
-    Result retval = Stream::analyzeStatus("get_render_position",
-                                          mStream->get_render_position(mStream, &halDspFrames));
-    _hidl_cb(retval, halDspFrames);
-    return Void();
-}
-
-Return<void> StreamOut::getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) {
-    Result retval(Result::NOT_SUPPORTED);
-    int64_t timestampUs = 0;
-    if (mStream->get_next_write_timestamp != NULL) {
-        retval = Stream::analyzeStatus("get_next_write_timestamp",
-                                       mStream->get_next_write_timestamp(mStream, &timestampUs));
-    }
-    _hidl_cb(retval, timestampUs);
-    return Void();
-}
-
-Return<Result> StreamOut::setCallback(const sp<IStreamOutCallback>& callback) {
-    if (mStream->set_callback == NULL) return Result::NOT_SUPPORTED;
-    // Safe to pass 'this' because it is guaranteed that the callback thread
-    // is joined prior to exit from StreamOut's destructor.
-    int result = mStream->set_callback(mStream, StreamOut::asyncCallback, this);
-    if (result == 0) {
-        mCallback = callback;
-    }
-    return Stream::analyzeStatus("set_callback", result);
-}
-
-Return<Result> StreamOut::clearCallback() {
-    if (mStream->set_callback == NULL) return Result::NOT_SUPPORTED;
-    mCallback.clear();
-    return Result::OK;
-}
-
-// static
-int StreamOut::asyncCallback(stream_callback_event_t event, void*, void* cookie) {
-    // It is guaranteed that the callback thread is joined prior
-    // to exiting from StreamOut's destructor. Must *not* use sp<StreamOut>
-    // here because it can make this code the last owner of StreamOut,
-    // and an attempt to run the destructor on the callback thread
-    // will cause a deadlock in the legacy HAL code.
-    StreamOut* self = reinterpret_cast<StreamOut*>(cookie);
-    // It's correct to hold an sp<> to callback because the reference
-    // in the StreamOut instance can be cleared in the meantime. There is
-    // no difference on which thread to run IStreamOutCallback's destructor.
-    sp<IStreamOutCallback> callback = self->mCallback;
-    if (callback.get() == nullptr) return 0;
-    ALOGV("asyncCallback() event %d", event);
-    switch (event) {
-        case STREAM_CBK_EVENT_WRITE_READY:
-            callback->onWriteReady();
-            break;
-        case STREAM_CBK_EVENT_DRAIN_READY:
-            callback->onDrainReady();
-            break;
-        case STREAM_CBK_EVENT_ERROR:
-            callback->onError();
-            break;
-        default:
-            ALOGW("asyncCallback() unknown event %d", event);
-            break;
-    }
-    return 0;
-}
-
-Return<void> StreamOut::supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) {
-    _hidl_cb(mStream->pause != NULL, mStream->resume != NULL);
-    return Void();
-}
-
-Return<Result> StreamOut::pause() {
-    return mStream->pause != NULL ? Stream::analyzeStatus("pause", mStream->pause(mStream))
-                                  : Result::NOT_SUPPORTED;
-}
-
-Return<Result> StreamOut::resume() {
-    return mStream->resume != NULL ? Stream::analyzeStatus("resume", mStream->resume(mStream))
-                                   : Result::NOT_SUPPORTED;
-}
-
-Return<bool> StreamOut::supportsDrain() {
-    return mStream->drain != NULL;
-}
-
-Return<Result> StreamOut::drain(AudioDrain type) {
-    return mStream->drain != NULL
-               ? Stream::analyzeStatus(
-                     "drain", mStream->drain(mStream, static_cast<audio_drain_type_t>(type)))
-               : Result::NOT_SUPPORTED;
-}
-
-Return<Result> StreamOut::flush() {
-    return mStream->flush != NULL ? Stream::analyzeStatus("flush", mStream->flush(mStream))
-                                  : Result::NOT_SUPPORTED;
-}
-
-// static
-Result StreamOut::getPresentationPositionImpl(audio_stream_out_t* stream, uint64_t* frames,
-                                              TimeSpec* timeStamp) {
-    // Don't logspam on EINVAL--it's normal for get_presentation_position
-    // to return it sometimes. EAGAIN may be returned by A2DP audio HAL
-    // implementation. ENODATA can also be reported while the writer is
-    // continuously querying it, but the stream has been stopped.
-    static const std::vector<int> ignoredErrors{EINVAL, EAGAIN, ENODATA};
-    Result retval(Result::NOT_SUPPORTED);
-    if (stream->get_presentation_position == NULL) return retval;
-    struct timespec halTimeStamp;
-    retval = Stream::analyzeStatus("get_presentation_position",
-                                   stream->get_presentation_position(stream, frames, &halTimeStamp),
-                                   ignoredErrors);
-    if (retval == Result::OK) {
-        timeStamp->tvSec = halTimeStamp.tv_sec;
-        timeStamp->tvNSec = halTimeStamp.tv_nsec;
-    }
-    return retval;
-}
-
-Return<void> StreamOut::getPresentationPosition(getPresentationPosition_cb _hidl_cb) {
-    uint64_t frames = 0;
-    TimeSpec timeStamp = {0, 0};
-    Result retval = getPresentationPositionImpl(mStream, &frames, &timeStamp);
-    _hidl_cb(retval, frames, timeStamp);
-    return Void();
-}
-
-Return<Result> StreamOut::start() {
-    return mStreamMmap->start();
-}
-
-Return<Result> StreamOut::stop() {
-    return mStreamMmap->stop();
-}
-
-Return<void> StreamOut::createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) {
-    return mStreamMmap->createMmapBuffer(minSizeFrames, audio_stream_out_frame_size(mStream),
-                                         _hidl_cb);
-}
-
-Return<void> StreamOut::getMmapPosition(getMmapPosition_cb _hidl_cb) {
-    return mStreamMmap->getMmapPosition(_hidl_cb);
-}
-
-Return<void> StreamOut::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
-    return mStreamCommon->debug(fd, options);
-}
-
-#ifdef AUDIO_HAL_VERSION_4_0
-Return<void> StreamOut::updateSourceMetadata(const SourceMetadata& sourceMetadata) {
-    if (mStream->update_source_metadata == nullptr) {
-        return Void();  // not supported by the HAL
-    }
-    std::vector<playback_track_metadata> halTracks;
-    halTracks.reserve(sourceMetadata.tracks.size());
-    for (auto& metadata : sourceMetadata.tracks) {
-        halTracks.push_back({
-            .usage = static_cast<audio_usage_t>(metadata.usage),
-            .content_type = static_cast<audio_content_type_t>(metadata.contentType),
-            .gain = metadata.gain,
-        });
-    }
-    const source_metadata_t halMetadata = {
-        .track_count = halTracks.size(), .tracks = halTracks.data(),
-    };
-    mStream->update_source_metadata(mStream, &halMetadata);
-    return Void();
-}
-Return<Result> StreamOut::selectPresentation(int32_t /*presentationId*/, int32_t /*programId*/) {
-    return Result::NOT_SUPPORTED;  // TODO: propagate to legacy
-}
-#endif
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Util.h b/audio/core/all-versions/default/include/core/all-versions/default/Util.h
deleted file mode 100644
index 350fd86..0000000
--- a/audio/core/all-versions/default/include/core/all-versions/default/Util.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <algorithm>
-#include <vector>
-
-#include <system/audio.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-
-/** @return true if gain is between 0 and 1 included. */
-constexpr bool isGainNormalized(float gain) {
-    return gain >= 0.0 && gain <= 1.0;
-}
-
-namespace util {
-
-template <typename T>
-inline bool element_in(T e, const std::vector<T>& v) {
-    return std::find(v.begin(), v.end(), e) != v.end();
-}
-
-static inline Result analyzeStatus(status_t status) {
-    switch (status) {
-        case 0:
-            return Result::OK;
-        case -EINVAL:
-            return Result::INVALID_ARGUMENTS;
-        case -ENODATA:
-            return Result::INVALID_STATE;
-        case -ENODEV:
-            return Result::NOT_INITIALIZED;
-        case -ENOSYS:
-            return Result::NOT_SUPPORTED;
-        default:
-            return Result::INVALID_STATE;
-    }
-}
-
-static inline Result analyzeStatus(const char* className, const char* funcName, status_t status,
-                                   const std::vector<int>& ignoreErrors = {}) {
-    if (status != 0 && !element_in(-status, ignoreErrors)) {
-        ALOGW("Error from HAL %s in function %s: %s", className, funcName, strerror(-status));
-    }
-    return analyzeStatus(status);
-}
-
-}  // namespace util
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/core/all-versions/default/include/core/default/Conversions.h b/audio/core/all-versions/default/include/core/default/Conversions.h
new file mode 100644
index 0000000..cb7914f
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/Conversions.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_CONVERSIONS_H_
+#define ANDROID_HARDWARE_AUDIO_CONVERSIONS_H_
+
+#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+
+#include <string>
+
+#include <system/audio.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+std::string deviceAddressToHal(const DeviceAddress& address);
+
+#if MAJOR_VERSION >= 4
+bool halToMicrophoneCharacteristics(MicrophoneInfo* pDst,
+                                    const struct audio_microphone_characteristic_t& src);
+#endif
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_CONVERSIONS_H_
diff --git a/audio/core/all-versions/default/include/core/default/Device.h b/audio/core/all-versions/default/include/core/default/Device.h
new file mode 100644
index 0000000..e64f00f
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/Device.h
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_DEVICE_H
+#define ANDROID_HARDWARE_AUDIO_DEVICE_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/IDevice.h)
+
+#include "ParametersUtil.h"
+
+#include <memory>
+
+#include <hardware/audio.h>
+#include <media/AudioParameter.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include <VersionUtils.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioInputFlagBitfield;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioOutputFlagBitfield;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+struct Device : public IDevice, public ParametersUtil {
+    explicit Device(audio_hw_device_t* device);
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IDevice follow.
+    Return<Result> initCheck() override;
+    Return<Result> setMasterVolume(float volume) override;
+    Return<void> getMasterVolume(getMasterVolume_cb _hidl_cb) override;
+    Return<Result> setMicMute(bool mute) override;
+    Return<void> getMicMute(getMicMute_cb _hidl_cb) override;
+    Return<Result> setMasterMute(bool mute) override;
+    Return<void> getMasterMute(getMasterMute_cb _hidl_cb) override;
+    Return<void> getInputBufferSize(const AudioConfig& config,
+                                    getInputBufferSize_cb _hidl_cb) override;
+
+    std::tuple<Result, sp<IStreamOut>> openOutputStreamImpl(int32_t ioHandle,
+                                                            const DeviceAddress& device,
+                                                            const AudioConfig& config,
+                                                            AudioOutputFlagBitfield flags,
+                                                            AudioConfig* suggestedConfig);
+    std::tuple<Result, sp<IStreamIn>> openInputStreamImpl(
+        int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
+        AudioInputFlagBitfield flags, AudioSource source, AudioConfig* suggestedConfig);
+#if MAJOR_VERSION == 2
+    Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                  const AudioConfig& config, AudioOutputFlagBitfield flags,
+                                  openOutputStream_cb _hidl_cb) override;
+    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                 const AudioConfig& config, AudioInputFlagBitfield flags,
+                                 AudioSource source, openInputStream_cb _hidl_cb) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                  const AudioConfig& config, AudioOutputFlagBitfield flags,
+                                  const SourceMetadata& sourceMetadata,
+                                  openOutputStream_cb _hidl_cb) override;
+    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                 const AudioConfig& config, AudioInputFlagBitfield flags,
+                                 const SinkMetadata& sinkMetadata,
+                                 openInputStream_cb _hidl_cb) override;
+#endif
+
+    Return<bool> supportsAudioPatches() override;
+    Return<void> createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
+                                  const hidl_vec<AudioPortConfig>& sinks,
+                                  createAudioPatch_cb _hidl_cb) override;
+    Return<Result> releaseAudioPatch(int32_t patch) override;
+    Return<void> getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) override;
+    Return<Result> setAudioPortConfig(const AudioPortConfig& config) override;
+
+    Return<Result> setScreenState(bool turnedOn) override;
+
+#if MAJOR_VERSION == 2
+    Return<AudioHwSync> getHwAvSync() override;
+    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
+    Return<void> debugDump(const hidl_handle& fd) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> getHwAvSync(getHwAvSync_cb _hidl_cb) override;
+    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
+                               const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
+                                 const hidl_vec<ParameterValue>& parameters) override;
+    Return<void> getMicrophones(getMicrophones_cb _hidl_cb) override;
+    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
+#endif
+
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Utility methods for extending interfaces.
+    Result analyzeStatus(const char* funcName, int status,
+                         const std::vector<int>& ignoreErrors = {});
+    void closeInputStream(audio_stream_in_t* stream);
+    void closeOutputStream(audio_stream_out_t* stream);
+    audio_hw_device_t* device() const { return mDevice; }
+
+   private:
+    audio_hw_device_t* mDevice;
+
+    virtual ~Device();
+
+    // Methods from ParametersUtil.
+    char* halGetParameters(const char* keys) override;
+    int halSetParameters(const char* keysAndValues) override;
+
+    uint32_t version() const { return mDevice->common.version; }
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_DEVICE_H
diff --git a/audio/core/all-versions/default/include/core/default/DevicesFactory.h b/audio/core/all-versions/default/include/core/default/DevicesFactory.h
new file mode 100644
index 0000000..9f93a38
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/DevicesFactory.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_DEVICESFACTORY_H
+#define ANDROID_HARDWARE_AUDIO_DEVICESFACTORY_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/IDevicesFactory.h)
+
+#include <hardware/audio.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+struct DevicesFactory : public IDevicesFactory {
+#if MAJOR_VERSION == 2
+    Return<void> openDevice(IDevicesFactory::Device device, openDevice_cb _hidl_cb) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> openDevice(const hidl_string& device, openDevice_cb _hidl_cb) override;
+    Return<void> openPrimaryDevice(openPrimaryDevice_cb _hidl_cb) override;
+#endif
+
+   private:
+    template <class DeviceShim, class Callback>
+    Return<void> openDevice(const char* moduleName, Callback _hidl_cb);
+    Return<void> openDevice(const char* moduleName, openDevice_cb _hidl_cb);
+
+    static int loadAudioInterface(const char* if_name, audio_hw_device_t** dev);
+};
+
+extern "C" IDevicesFactory* HIDL_FETCH_IDevicesFactory(const char* name);
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_DEVICESFACTORY_H
diff --git a/audio/core/all-versions/default/include/core/default/ParametersUtil.h b/audio/core/all-versions/default/include/core/default/ParametersUtil.h
new file mode 100644
index 0000000..45d9b21
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/ParametersUtil.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_
+#define ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_
+
+#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+
+#include <functional>
+#include <memory>
+
+#include <hidl/HidlSupport.h>
+#include <media/AudioParameter.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+class ParametersUtil {
+   public:
+    Result setParam(const char* name, const char* value);
+    Result getParam(const char* name, bool* value);
+    Result getParam(const char* name, int* value);
+    Result getParam(const char* name, String8* value, AudioParameter context = {});
+    void getParametersImpl(
+        const hidl_vec<ParameterValue>& context, const hidl_vec<hidl_string>& keys,
+        std::function<void(Result retval, const hidl_vec<ParameterValue>& parameters)> cb);
+    std::unique_ptr<AudioParameter> getParams(const AudioParameter& keys);
+    Result setParam(const char* name, bool value);
+    Result setParam(const char* name, int value);
+    Result setParam(const char* name, float value);
+    Result setParametersImpl(const hidl_vec<ParameterValue>& context,
+                             const hidl_vec<ParameterValue>& parameters);
+    Result setParams(const AudioParameter& param);
+    Result setParam(const char* name, const DeviceAddress& address);
+
+   protected:
+    virtual ~ParametersUtil() {}
+
+    virtual char* halGetParameters(const char* keys) = 0;
+    virtual int halSetParameters(const char* keysAndValues) = 0;
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_
diff --git a/audio/core/all-versions/default/include/core/default/PrimaryDevice.h b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
new file mode 100644
index 0000000..9d69cb0
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_PRIMARYDEVICE_H
+#define ANDROID_HARDWARE_AUDIO_PRIMARYDEVICE_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/IPrimaryDevice.h)
+
+#include "Device.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+struct PrimaryDevice : public IPrimaryDevice {
+    explicit PrimaryDevice(audio_hw_device_t* device);
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IDevice follow.
+    Return<Result> initCheck() override;
+    Return<Result> setMasterVolume(float volume) override;
+    Return<void> getMasterVolume(getMasterVolume_cb _hidl_cb) override;
+    Return<Result> setMicMute(bool mute) override;
+    Return<void> getMicMute(getMicMute_cb _hidl_cb) override;
+    Return<Result> setMasterMute(bool mute) override;
+    Return<void> getMasterMute(getMasterMute_cb _hidl_cb) override;
+    Return<void> getInputBufferSize(const AudioConfig& config,
+                                    getInputBufferSize_cb _hidl_cb) override;
+
+    Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
+                                  const AudioConfig& config, AudioOutputFlagBitfield flags,
+#if MAJOR_VERSION >= 4
+                                  const SourceMetadata& sourceMetadata,
+#endif
+                                  openOutputStream_cb _hidl_cb) override;
+
+    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                 const AudioConfig& config, AudioInputFlagBitfield flags,
+                                 AudioSource source, openInputStream_cb _hidl_cb);
+#if MAJOR_VERSION >= 4
+    Return<void> openInputStream(int32_t ioHandle, const DeviceAddress& device,
+                                 const AudioConfig& config, AudioInputFlagBitfield flags,
+                                 const SinkMetadata& sinkMetadata,
+                                 openInputStream_cb _hidl_cb) override;
+#endif
+
+    Return<bool> supportsAudioPatches() override;
+    Return<void> createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
+                                  const hidl_vec<AudioPortConfig>& sinks,
+                                  createAudioPatch_cb _hidl_cb) override;
+    Return<Result> releaseAudioPatch(int32_t patch) override;
+    Return<void> getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb) override;
+    Return<Result> setAudioPortConfig(const AudioPortConfig& config) override;
+
+    Return<Result> setScreenState(bool turnedOn) override;
+
+#if MAJOR_VERSION == 2
+    Return<AudioHwSync> getHwAvSync() override;
+    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
+    Return<void> debugDump(const hidl_handle& fd) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> getHwAvSync(getHwAvSync_cb _hidl_cb) override;
+    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
+                               const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
+                                 const hidl_vec<ParameterValue>& parameters) override;
+    Return<void> getMicrophones(getMicrophones_cb _hidl_cb) override;
+    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
+#endif
+
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IPrimaryDevice follow.
+    Return<Result> setVoiceVolume(float volume) override;
+    Return<Result> setMode(AudioMode mode) override;
+    Return<void> getBtScoNrecEnabled(getBtScoNrecEnabled_cb _hidl_cb) override;
+    Return<Result> setBtScoNrecEnabled(bool enabled) override;
+    Return<void> getBtScoWidebandEnabled(getBtScoWidebandEnabled_cb _hidl_cb) override;
+    Return<Result> setBtScoWidebandEnabled(bool enabled) override;
+    Return<void> getTtyMode(getTtyMode_cb _hidl_cb) override;
+    Return<Result> setTtyMode(IPrimaryDevice::TtyMode mode) override;
+    Return<void> getHacEnabled(getHacEnabled_cb _hidl_cb) override;
+    Return<Result> setHacEnabled(bool enabled) override;
+
+#if MAJOR_VERSION >= 4
+    Return<Result> setBtScoHeadsetDebugName(const hidl_string& name) override;
+    Return<void> getBtHfpEnabled(getBtHfpEnabled_cb _hidl_cb) override;
+    Return<Result> setBtHfpEnabled(bool enabled) override;
+    Return<Result> setBtHfpSampleRate(uint32_t sampleRateHz) override;
+    Return<Result> setBtHfpVolume(float volume) override;
+    Return<Result> updateRotation(IPrimaryDevice::Rotation rotation) override;
+#endif
+
+   private:
+    sp<Device> mDevice;
+
+    virtual ~PrimaryDevice();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_PRIMARYDEVICE_H
diff --git a/audio/core/all-versions/default/include/core/default/Stream.h b/audio/core/all-versions/default/include/core/default/Stream.h
new file mode 100644
index 0000000..91df0c7
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/Stream.h
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_STREAM_H
+#define ANDROID_HARDWARE_AUDIO_STREAM_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/IStream.h)
+
+#include "ParametersUtil.h"
+
+#include <vector>
+
+#include <hardware/audio.h>
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include <VersionUtils.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioChannelBitfield;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+struct Stream : public IStream, public ParametersUtil {
+    explicit Stream(audio_stream_t* stream);
+
+    /** 1GiB is the maximum buffer size the HAL client is allowed to request.
+     * This value has been chosen to be under SIZE_MAX and still big enough
+     * for all audio use case.
+     * Keep private for 2.0, put in .hal in 2.1
+     */
+    static constexpr uint32_t MAX_BUFFER_SIZE = 2 << 30 /* == 1GiB */;
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
+    Return<uint64_t> getFrameSize() override;
+    Return<uint64_t> getFrameCount() override;
+    Return<uint64_t> getBufferSize() override;
+    Return<uint32_t> getSampleRate() override;
+#if MAJOR_VERSION == 2
+    Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
+    Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
+#endif
+    Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb);
+    Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb);
+    Return<Result> setSampleRate(uint32_t sampleRateHz) override;
+    Return<AudioChannelBitfield> getChannelMask() override;
+    Return<Result> setChannelMask(AudioChannelBitfield mask) override;
+    Return<AudioFormat> getFormat() override;
+    Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
+    Return<Result> setFormat(AudioFormat format) override;
+    Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
+    Return<Result> addEffect(uint64_t effectId) override;
+    Return<Result> removeEffect(uint64_t effectId) override;
+    Return<Result> standby() override;
+#if MAJOR_VERSION == 2
+    Return<AudioDevice> getDevice() override;
+    Return<Result> setDevice(const DeviceAddress& address) override;
+    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
+    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> getDevices(getDevices_cb _hidl_cb) override;
+    Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override;
+    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
+                               const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
+                                 const hidl_vec<ParameterValue>& parameters) override;
+#endif
+    Return<Result> setHwAvSync(uint32_t hwAvSync) override;
+    Return<Result> start() override;
+    Return<Result> stop() override;
+    Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
+    Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
+    Return<Result> close() override;
+
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+#if MAJOR_VERSION == 2
+    Return<void> debugDump(const hidl_handle& fd) override;
+#endif
+
+    // Utility methods for extending interfaces.
+    static Result analyzeStatus(const char* funcName, int status);
+    static Result analyzeStatus(const char* funcName, int status,
+                                const std::vector<int>& ignoreErrors);
+
+   private:
+    audio_stream_t* mStream;
+
+    virtual ~Stream();
+
+    // Methods from ParametersUtil.
+    char* halGetParameters(const char* keys) override;
+    int halSetParameters(const char* keysAndValues) override;
+};
+
+template <typename T>
+struct StreamMmap : public RefBase {
+    explicit StreamMmap(T* stream) : mStream(stream) {}
+
+    Return<Result> start();
+    Return<Result> stop();
+    Return<void> createMmapBuffer(int32_t minSizeFrames, size_t frameSize,
+                                  IStream::createMmapBuffer_cb _hidl_cb);
+    Return<void> getMmapPosition(IStream::getMmapPosition_cb _hidl_cb);
+
+   private:
+    StreamMmap() {}
+
+    T* mStream;
+};
+
+template <typename T>
+Return<Result> StreamMmap<T>::start() {
+    if (mStream->start == NULL) return Result::NOT_SUPPORTED;
+    int result = mStream->start(mStream);
+    return Stream::analyzeStatus("start", result);
+}
+
+template <typename T>
+Return<Result> StreamMmap<T>::stop() {
+    if (mStream->stop == NULL) return Result::NOT_SUPPORTED;
+    int result = mStream->stop(mStream);
+    return Stream::analyzeStatus("stop", result);
+}
+
+template <typename T>
+Return<void> StreamMmap<T>::createMmapBuffer(int32_t minSizeFrames, size_t frameSize,
+                                             IStream::createMmapBuffer_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    MmapBufferInfo info;
+    native_handle_t* hidlHandle = nullptr;
+
+    if (mStream->create_mmap_buffer != NULL) {
+        struct audio_mmap_buffer_info halInfo;
+        retval = Stream::analyzeStatus(
+            "create_mmap_buffer", mStream->create_mmap_buffer(mStream, minSizeFrames, &halInfo));
+        if (retval == Result::OK) {
+            hidlHandle = native_handle_create(1, 0);
+            hidlHandle->data[0] = halInfo.shared_memory_fd;
+
+            // Negative buffer size frame is a legacy hack to indicate that the buffer
+            // is shareable to applications before the relevant flag was introduced
+            bool applicationShareable =
+                halInfo.flags & AUDIO_MMAP_APPLICATION_SHAREABLE || halInfo.buffer_size_frames < 0;
+            halInfo.buffer_size_frames = abs(halInfo.buffer_size_frames);
+            info.sharedMemory =  // hidl_memory size must always be positive
+                hidl_memory("audio_buffer", hidlHandle, frameSize * halInfo.buffer_size_frames);
+#if MAJOR_VERSION == 2
+            if (applicationShareable) {
+                halInfo.buffer_size_frames *= -1;
+            }
+#else
+            info.flags =
+                halInfo.flags | (applicationShareable ? MmapBufferFlag::APPLICATION_SHAREABLE
+                                                      : MmapBufferFlag::NONE);
+#endif
+            info.bufferSizeFrames = halInfo.buffer_size_frames;
+            info.burstSizeFrames = halInfo.burst_size_frames;
+        }
+    }
+    _hidl_cb(retval, info);
+    if (hidlHandle != nullptr) {
+        native_handle_delete(hidlHandle);
+    }
+    return Void();
+}
+
+template <typename T>
+Return<void> StreamMmap<T>::getMmapPosition(IStream::getMmapPosition_cb _hidl_cb) {
+    Result retval(Result::NOT_SUPPORTED);
+    MmapPosition position;
+
+    if (mStream->get_mmap_position != NULL) {
+        struct audio_mmap_position halPosition;
+        retval = Stream::analyzeStatus("get_mmap_position",
+                                       mStream->get_mmap_position(mStream, &halPosition));
+        if (retval == Result::OK) {
+            position.timeNanoseconds = halPosition.time_nanoseconds;
+            position.positionFrames = halPosition.position_frames;
+        }
+    }
+    _hidl_cb(retval, position);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_STREAM_H
diff --git a/audio/core/all-versions/default/include/core/default/StreamIn.h b/audio/core/all-versions/default/include/core/default/StreamIn.h
new file mode 100644
index 0000000..6209b8f
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/StreamIn.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_STREAMIN_H
+#define ANDROID_HARDWARE_AUDIO_STREAMIN_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/IStreamIn.h)
+
+#include "Device.h"
+#include "Stream.h"
+
+#include <atomic>
+#include <memory>
+
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <utils/Thread.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+struct StreamIn : public IStreamIn {
+    typedef MessageQueue<ReadParameters, kSynchronizedReadWrite> CommandMQ;
+    typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
+    typedef MessageQueue<ReadStatus, kSynchronizedReadWrite> StatusMQ;
+
+    StreamIn(const sp<Device>& device, audio_stream_in_t* stream);
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
+    Return<uint64_t> getFrameSize() override;
+    Return<uint64_t> getFrameCount() override;
+    Return<uint64_t> getBufferSize() override;
+    Return<uint32_t> getSampleRate() override;
+#if MAJOR_VERSION == 2
+    Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
+    Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
+#endif
+    Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb);
+    Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb);
+    Return<Result> setSampleRate(uint32_t sampleRateHz) override;
+    Return<AudioChannelBitfield> getChannelMask() override;
+    Return<Result> setChannelMask(AudioChannelBitfield mask) override;
+    Return<AudioFormat> getFormat() override;
+    Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
+    Return<Result> setFormat(AudioFormat format) override;
+    Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
+    Return<Result> addEffect(uint64_t effectId) override;
+    Return<Result> removeEffect(uint64_t effectId) override;
+    Return<Result> standby() override;
+#if MAJOR_VERSION == 2
+    Return<AudioDevice> getDevice() override;
+    Return<Result> setDevice(const DeviceAddress& address) override;
+    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
+    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> getDevices(getDevices_cb _hidl_cb) override;
+    Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override;
+    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
+                               const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
+                                 const hidl_vec<ParameterValue>& parameters) override;
+#endif
+    Return<Result> setHwAvSync(uint32_t hwAvSync) override;
+    Return<Result> close() override;
+
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+#if MAJOR_VERSION == 2
+    Return<void> debugDump(const hidl_handle& fd) override;
+#endif
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IStreamIn follow.
+    Return<void> getAudioSource(getAudioSource_cb _hidl_cb) override;
+    Return<Result> setGain(float gain) override;
+    Return<void> prepareForReading(uint32_t frameSize, uint32_t framesCount,
+                                   prepareForReading_cb _hidl_cb) override;
+    Return<uint32_t> getInputFramesLost() override;
+    Return<void> getCapturePosition(getCapturePosition_cb _hidl_cb) override;
+    Return<Result> start() override;
+    Return<Result> stop() override;
+    Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
+    Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
+#if MAJOR_VERSION >= 4
+    Return<void> updateSinkMetadata(const SinkMetadata& sinkMetadata) override;
+    Return<void> getActiveMicrophones(getActiveMicrophones_cb _hidl_cb) override;
+#endif
+#if MAJOR_VERSION >= 5
+    Return<Result> setMicrophoneDirection(MicrophoneDirection direction) override;
+    Return<Result> setMicrophoneFieldDimension(float zoom) override;
+#endif
+    static Result getCapturePositionImpl(audio_stream_in_t* stream, uint64_t* frames,
+                                         uint64_t* time);
+
+   private:
+    bool mIsClosed;
+    const sp<Device> mDevice;
+    audio_stream_in_t* mStream;
+    const sp<Stream> mStreamCommon;
+    const sp<StreamMmap<audio_stream_in_t>> mStreamMmap;
+    std::unique_ptr<CommandMQ> mCommandMQ;
+    std::unique_ptr<DataMQ> mDataMQ;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    EventFlag* mEfGroup;
+    std::atomic<bool> mStopReadThread;
+    sp<Thread> mReadThread;
+
+    virtual ~StreamIn();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_STREAMIN_H
diff --git a/audio/core/all-versions/default/include/core/default/StreamOut.h b/audio/core/all-versions/default/include/core/default/StreamOut.h
new file mode 100644
index 0000000..b098005
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/StreamOut.h
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_STREAMOUT_H
+#define ANDROID_HARDWARE_AUDIO_STREAMOUT_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/IStreamOut.h)
+
+#include "Device.h"
+#include "Stream.h"
+
+#include <atomic>
+#include <memory>
+
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <utils/Thread.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+struct StreamOut : public IStreamOut {
+    typedef MessageQueue<WriteCommand, kSynchronizedReadWrite> CommandMQ;
+    typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
+    typedef MessageQueue<WriteStatus, kSynchronizedReadWrite> StatusMQ;
+
+    StreamOut(const sp<Device>& device, audio_stream_out_t* stream);
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
+    Return<uint64_t> getFrameSize() override;
+    Return<uint64_t> getFrameCount() override;
+    Return<uint64_t> getBufferSize() override;
+    Return<uint32_t> getSampleRate() override;
+#if MAJOR_VERSION == 2
+    Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
+    Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
+#endif
+    Return<void> getSupportedSampleRates(AudioFormat format, getSupportedSampleRates_cb _hidl_cb);
+    Return<void> getSupportedChannelMasks(AudioFormat format, getSupportedChannelMasks_cb _hidl_cb);
+    Return<Result> setSampleRate(uint32_t sampleRateHz) override;
+    Return<AudioChannelBitfield> getChannelMask() override;
+    Return<Result> setChannelMask(AudioChannelBitfield mask) override;
+    Return<AudioFormat> getFormat() override;
+    Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
+    Return<Result> setFormat(AudioFormat format) override;
+    Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
+    Return<Result> addEffect(uint64_t effectId) override;
+    Return<Result> removeEffect(uint64_t effectId) override;
+    Return<Result> standby() override;
+#if MAJOR_VERSION == 2
+    Return<AudioDevice> getDevice() override;
+    Return<Result> setDevice(const DeviceAddress& address) override;
+    Return<void> getParameters(const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
+    Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
+#elif MAJOR_VERSION >= 4
+    Return<void> getDevices(getDevices_cb _hidl_cb) override;
+    Return<Result> setDevices(const hidl_vec<DeviceAddress>& devices) override;
+    Return<void> getParameters(const hidl_vec<ParameterValue>& context,
+                               const hidl_vec<hidl_string>& keys,
+                               getParameters_cb _hidl_cb) override;
+    Return<Result> setParameters(const hidl_vec<ParameterValue>& context,
+                                 const hidl_vec<ParameterValue>& parameters) override;
+#endif
+    Return<Result> setHwAvSync(uint32_t hwAvSync) override;
+    Return<Result> close() override;
+
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+#if MAJOR_VERSION == 2
+    Return<void> debugDump(const hidl_handle& fd) override;
+#endif
+
+    // Methods from ::android::hardware::audio::CPP_VERSION::IStreamOut follow.
+    Return<uint32_t> getLatency() override;
+    Return<Result> setVolume(float left, float right) override;
+    Return<void> prepareForWriting(uint32_t frameSize, uint32_t framesCount,
+                                   prepareForWriting_cb _hidl_cb) override;
+    Return<void> getRenderPosition(getRenderPosition_cb _hidl_cb) override;
+    Return<void> getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) override;
+    Return<Result> setCallback(const sp<IStreamOutCallback>& callback) override;
+    Return<Result> clearCallback() override;
+    Return<void> supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) override;
+    Return<Result> pause() override;
+    Return<Result> resume() override;
+    Return<bool> supportsDrain() override;
+    Return<Result> drain(AudioDrain type) override;
+    Return<Result> flush() override;
+    Return<void> getPresentationPosition(getPresentationPosition_cb _hidl_cb) override;
+    Return<Result> start() override;
+    Return<Result> stop() override;
+    Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
+    Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
+#if MAJOR_VERSION >= 4
+    Return<void> updateSourceMetadata(const SourceMetadata& sourceMetadata) override;
+    Return<Result> selectPresentation(int32_t presentationId, int32_t programId) override;
+#endif
+
+    static Result getPresentationPositionImpl(audio_stream_out_t* stream, uint64_t* frames,
+                                              TimeSpec* timeStamp);
+
+   private:
+    bool mIsClosed;
+    const sp<Device> mDevice;
+    audio_stream_out_t* mStream;
+    const sp<Stream> mStreamCommon;
+    const sp<StreamMmap<audio_stream_out_t>> mStreamMmap;
+    sp<IStreamOutCallback> mCallback;
+    std::unique_ptr<CommandMQ> mCommandMQ;
+    std::unique_ptr<DataMQ> mDataMQ;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    EventFlag* mEfGroup;
+    std::atomic<bool> mStopWriteThread;
+    sp<Thread> mWriteThread;
+
+    virtual ~StreamOut();
+
+    static int asyncCallback(stream_callback_event_t event, void* param, void* cookie);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_STREAMOUT_H
diff --git a/audio/core/all-versions/default/include/core/default/Util.h b/audio/core/all-versions/default/include/core/default/Util.h
new file mode 100644
index 0000000..78ae03e
--- /dev/null
+++ b/audio/core/all-versions/default/include/core/default/Util.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_UTIL_H
+#define ANDROID_HARDWARE_AUDIO_UTIL_H
+
+#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+
+#include <algorithm>
+#include <vector>
+
+#include <system/audio.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace CPP_VERSION {
+namespace implementation {
+
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+/** @return true if gain is between 0 and 1 included. */
+constexpr bool isGainNormalized(float gain) {
+    return gain >= 0.0 && gain <= 1.0;
+}
+
+namespace util {
+
+template <typename T>
+inline bool element_in(T e, const std::vector<T>& v) {
+    return std::find(v.begin(), v.end(), e) != v.end();
+}
+
+static inline Result analyzeStatus(status_t status) {
+    switch (status) {
+        case 0:
+            return Result::OK;
+        case -EINVAL:
+            return Result::INVALID_ARGUMENTS;
+        case -ENODATA:
+            return Result::INVALID_STATE;
+        case -ENODEV:
+            return Result::NOT_INITIALIZED;
+        case -ENOSYS:
+            return Result::NOT_SUPPORTED;
+        default:
+            return Result::INVALID_STATE;
+    }
+}
+
+static inline Result analyzeStatus(const char* className, const char* funcName, status_t status,
+                                   const std::vector<int>& ignoreErrors = {}) {
+    if (status != 0 && !element_in(-status, ignoreErrors)) {
+        ALOGW("Error from HAL %s in function %s: %s", className, funcName, strerror(-status));
+    }
+    return analyzeStatus(status);
+}
+
+}  // namespace util
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_UTIL_H
diff --git a/audio/core/all-versions/vts/OWNERS b/audio/core/all-versions/vts/OWNERS
new file mode 100644
index 0000000..0ea4666
--- /dev/null
+++ b/audio/core/all-versions/vts/OWNERS
@@ -0,0 +1,5 @@
+elaurent@google.com
+krocard@google.com
+mnaganov@google.com
+yim@google.com
+zhuoyao@google.com
diff --git a/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalTest.cpp
new file mode 100644
index 0000000..7906bf1
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalTest.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "AudioPrimaryHidlHalTest.h"
+
+static void testGetDevice(IStream* stream, AudioDevice expectedDevice) {
+    // Unfortunately the interface does not allow the implementation to return
+    // NOT_SUPPORTED
+    // Thus allow NONE as signaling that the call is not supported.
+    auto ret = stream->getDevice();
+    ASSERT_IS_OK(ret);
+    AudioDevice device = ret;
+    ASSERT_TRUE(device == expectedDevice || device == AudioDevice::NONE)
+        << "Expected: " << ::testing::PrintToString(expectedDevice)
+        << "\n  Actual: " << ::testing::PrintToString(device);
+}
+
+TEST_IO_STREAM(GetDevice, "Check that the stream device == the one it was opened with",
+               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
+                                          : testGetDevice(stream.get(), address.device))
+
+static void testSetDevice(IStream* stream, const DeviceAddress& address) {
+    DeviceAddress otherAddress = address;
+    otherAddress.device = (address.device & AudioDevice::BIT_IN) == 0 ? AudioDevice::OUT_SPEAKER
+                                                                      : AudioDevice::IN_BUILTIN_MIC;
+    EXPECT_OK(stream->setDevice(otherAddress));
+
+    ASSERT_OK(stream->setDevice(address));  // Go back to the original value
+}
+
+TEST_IO_STREAM(SetDevice, "Check that the stream can be rerouted to SPEAKER or BUILTIN_MIC",
+               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
+                                          : testSetDevice(stream.get(), address))
+
+static void testConnectedState(IStream* stream) {
+    DeviceAddress address = {};
+    using AD = AudioDevice;
+    for (auto device : {AD::OUT_HDMI, AD::OUT_WIRED_HEADPHONE, AD::IN_USB_HEADSET}) {
+        address.device = device;
+
+        ASSERT_OK(stream->setConnectedState(address, true));
+        ASSERT_OK(stream->setConnectedState(address, false));
+    }
+}
+TEST_IO_STREAM(SetConnectedState,
+               "Check that the stream can be notified of device connection and "
+               "deconnection",
+               testConnectedState(stream.get()))
+
+TEST_IO_STREAM(GetHwAvSync, "Get hardware sync can not fail", ASSERT_IS_OK(device->getHwAvSync()));
+
+TEST_F(AudioPrimaryHidlTest, setMode) {
+    doc::test("Make sure setMode always succeeds if mode is valid and fails otherwise");
+    // Test Invalid values
+    for (AudioMode mode : {AudioMode::INVALID, AudioMode::CURRENT, AudioMode::CNT}) {
+        SCOPED_TRACE("mode=" + toString(mode));
+        ASSERT_RESULT(Result::INVALID_ARGUMENTS, device->setMode(mode));
+    }
+    // Test valid values
+    for (AudioMode mode : {AudioMode::IN_CALL, AudioMode::IN_COMMUNICATION, AudioMode::RINGTONE,
+                           AudioMode::NORMAL /* Make sure to leave the test in normal mode */}) {
+        SCOPED_TRACE("mode=" + toString(mode));
+        ASSERT_OK(device->setMode(mode));
+    }
+}
diff --git a/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h b/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h
new file mode 100644
index 0000000..1cffd41
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include PATH(android/hardware/audio/FILE_VERSION/IStream.h)
+#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include <hidl/HidlSupport.h>
+
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::audio::common::CPP_VERSION::AudioChannelMask;
+using ::android::hardware::audio::common::CPP_VERSION::AudioFormat;
+using ::android::hardware::audio::CPP_VERSION::IStream;
+using ::android::hardware::audio::CPP_VERSION::ParameterValue;
+using ::android::hardware::audio::CPP_VERSION::Result;
+
+using namespace ::android::hardware::audio::common::test::utility;
+
+struct Parameters {
+    template <class T, class ReturnIn>
+    static auto get(T t, hidl_vec<hidl_string> keys, ReturnIn returnIn) {
+        return t->getParameters(keys, returnIn);
+    }
+    template <class T>
+    static auto set(T t, hidl_vec<ParameterValue> values) {
+        return t->setParameters(values);
+    }
+};
+
+// The default hal should probably return a NOT_SUPPORTED if the hal
+// does not expose
+// capability retrieval. For now it returns an empty list if not
+// implemented
+struct GetSupported {
+    template <class Vec>
+    static Result convertToResult(const Vec& vec) {
+        return vec.size() == 0 ? Result::NOT_SUPPORTED : Result::OK;
+    }
+
+    static Result sampleRates(IStream* stream, hidl_vec<uint32_t>& rates) {
+        EXPECT_OK(stream->getSupportedSampleRates(returnIn(rates)));
+        return convertToResult(rates);
+    }
+
+    static Result channelMasks(IStream* stream, hidl_vec<AudioChannelMask>& channels) {
+        EXPECT_OK(stream->getSupportedChannelMasks(returnIn(channels)));
+        return convertToResult(channels);
+    }
+
+    static Result formats(IStream* stream, hidl_vec<AudioFormat>& capabilities) {
+        EXPECT_OK(stream->getSupportedFormats(returnIn(capabilities)));
+        // TODO: this should be an optional function
+        return Result::OK;
+    }
+};
+
+template <class T>
+auto dump(T t, hidl_handle handle) {
+    return t->debugDump(handle);
+}
diff --git a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
new file mode 100644
index 0000000..022f75e
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
@@ -0,0 +1,309 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "AudioPrimaryHidlHalTest.h"
+
+static void waitForDeviceDestruction() {
+    // FIXME: there is no way to know when the remote IDevice is being destroyed
+    //        Binder does not support testing if an object is alive, thus
+    //        wait for 100ms to let the binder destruction propagates and
+    //        the remote device has the time to be destroyed.
+    //        flushCommand makes sure all local command are sent, thus should reduce
+    //        the latency between local and remote destruction.
+    IPCThreadState::self()->flushCommands();
+    usleep(100);
+}
+
+TEST_F(AudioHidlTest, OpenPrimaryDeviceUsingGetDevice) {
+    doc::test("Calling openDevice(\"primary\") should return the primary device.");
+    {
+        Result result;
+        sp<IDevice> baseDevice;
+        ASSERT_OK(devicesFactory->openDevice("primary", returnIn(result, baseDevice)));
+        ASSERT_OK(result);
+        ASSERT_TRUE(baseDevice != nullptr);
+
+        Return<sp<IPrimaryDevice>> primaryDevice = IPrimaryDevice::castFrom(baseDevice);
+        ASSERT_TRUE(primaryDevice.isOk());
+        ASSERT_TRUE(sp<IPrimaryDevice>(primaryDevice) != nullptr);
+    }  // Destroy local IDevice proxy
+    waitForDeviceDestruction();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+/////////////////////////// get(Active)Microphones ///////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_F(AudioPrimaryHidlTest, GetMicrophonesTest) {
+    doc::test("Make sure getMicrophones always succeeds");
+    hidl_vec<MicrophoneInfo> microphones;
+    ASSERT_OK(device->getMicrophones(returnIn(res, microphones)));
+    ASSERT_OK(res);
+    if (microphones.size() > 0) {
+        // When there is microphone on the phone, try to open an input stream
+        // and query for the active microphones.
+        doc::test(
+            "Make sure getMicrophones always succeeds"
+            "and getActiveMicrophones always succeeds when recording from these microphones.");
+        AudioIoHandle ioHandle = (AudioIoHandle)AudioHandleConsts::AUDIO_IO_HANDLE_NONE;
+        AudioConfig config{};
+        config.channelMask = mkEnumBitfield(AudioChannelMask::IN_MONO);
+        config.sampleRateHz = 8000;
+        config.format = AudioFormat::PCM_16_BIT;
+        auto flags = hidl_bitfield<AudioInputFlag>(AudioInputFlag::NONE);
+        const SinkMetadata initMetadata = {{{.source = AudioSource::MIC, .gain = 1}}};
+        EventFlag* efGroup;
+        for (auto microphone : microphones) {
+            if (microphone.deviceAddress.device != AudioDevice::IN_BUILTIN_MIC) {
+                continue;
+            }
+            sp<IStreamIn> stream;
+            AudioConfig suggestedConfig{};
+            ASSERT_OK(device->openInputStream(ioHandle, microphone.deviceAddress, config, flags,
+                                              initMetadata,
+                                              returnIn(res, stream, suggestedConfig)));
+            if (res != Result::OK) {
+                ASSERT_TRUE(stream == nullptr);
+                AudioConfig suggestedConfigRetry{};
+                ASSERT_OK(device->openInputStream(ioHandle, microphone.deviceAddress,
+                                                  suggestedConfig, flags, initMetadata,
+                                                  returnIn(res, stream, suggestedConfigRetry)));
+            }
+            ASSERT_OK(res);
+            hidl_vec<MicrophoneInfo> activeMicrophones;
+            Result readRes;
+            typedef MessageQueue<IStreamIn::ReadParameters, kSynchronizedReadWrite> CommandMQ;
+            typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
+            std::unique_ptr<CommandMQ> commandMQ;
+            std::unique_ptr<DataMQ> dataMQ;
+            size_t frameSize = stream->getFrameSize();
+            size_t frameCount = stream->getBufferSize() / frameSize;
+            ASSERT_OK(stream->prepareForReading(
+                frameSize, frameCount, [&](auto r, auto& c, auto& d, auto&, auto&) {
+                    readRes = r;
+                    if (readRes == Result::OK) {
+                        commandMQ.reset(new CommandMQ(c));
+                        dataMQ.reset(new DataMQ(d));
+                        if (dataMQ->isValid() && dataMQ->getEventFlagWord()) {
+                            EventFlag::createEventFlag(dataMQ->getEventFlagWord(), &efGroup);
+                        }
+                    }
+                }));
+            ASSERT_OK(readRes);
+            IStreamIn::ReadParameters params;
+            params.command = IStreamIn::ReadCommand::READ;
+            ASSERT_TRUE(commandMQ != nullptr);
+            ASSERT_TRUE(commandMQ->isValid());
+            ASSERT_TRUE(commandMQ->write(&params));
+            efGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+            uint32_t efState = 0;
+            efGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
+            if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY)) {
+                ASSERT_OK(stream->getActiveMicrophones(returnIn(res, activeMicrophones)));
+                ASSERT_OK(res);
+                ASSERT_NE(0U, activeMicrophones.size());
+            }
+            stream->close();
+            if (efGroup) {
+                EventFlag::deleteEventFlag(&efGroup);
+            }
+        }
+    }
+}
+
+TEST_F(AudioPrimaryHidlTest, SetConnectedState) {
+    doc::test("Check that the HAL can be notified of device connection and deconnection");
+    using AD = AudioDevice;
+    for (auto deviceType : {AD::OUT_HDMI, AD::OUT_WIRED_HEADPHONE, AD::IN_USB_HEADSET}) {
+        SCOPED_TRACE("device=" + ::testing::PrintToString(deviceType));
+        for (bool state : {true, false}) {
+            SCOPED_TRACE("state=" + ::testing::PrintToString(state));
+            DeviceAddress address = {};
+            address.device = deviceType;
+            auto ret = device->setConnectedState(address, state);
+            ASSERT_TRUE(ret.isOk());
+            if (ret == Result::NOT_SUPPORTED) {
+                doc::partialTest("setConnectedState is not supported");
+                break;  // other deviceType might be supported
+            }
+            ASSERT_OK(ret);
+        }
+    }
+
+    // Because there is no way of knowing if the devices were connected before
+    // calling setConnectedState, there is no way to restore the HAL to its
+    // initial state. To workaround this, destroy the HAL at the end of this test.
+    device.clear();
+    waitForDeviceDestruction();
+}
+
+static void testGetDevices(IStream* stream, AudioDevice expectedDevice) {
+    hidl_vec<DeviceAddress> devices;
+    Result res;
+    ASSERT_OK(stream->getDevices(returnIn(res, devices)));
+    if (res == Result::NOT_SUPPORTED) {
+        return doc::partialTest("GetDevices is not supported");
+    }
+    // The stream was constructed with one device, thus getDevices must only return one
+    ASSERT_EQ(1U, devices.size());
+    AudioDevice device = devices[0].device;
+    ASSERT_TRUE(device == expectedDevice)
+        << "Expected: " << ::testing::PrintToString(expectedDevice)
+        << "\n  Actual: " << ::testing::PrintToString(device);
+}
+
+TEST_IO_STREAM(GetDevices, "Check that the stream device == the one it was opened with",
+               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
+                                          : testGetDevices(stream.get(), address.device))
+
+static void testSetDevices(IStream* stream, const DeviceAddress& address) {
+    DeviceAddress otherAddress = address;
+    otherAddress.device = (address.device & AudioDevice::BIT_IN) == 0 ? AudioDevice::OUT_SPEAKER
+                                                                      : AudioDevice::IN_BUILTIN_MIC;
+    EXPECT_OK(stream->setDevices({otherAddress}));
+
+    ASSERT_OK(stream->setDevices({address}));  // Go back to the original value
+}
+
+TEST_IO_STREAM(SetDevices, "Check that the stream can be rerouted to SPEAKER or BUILTIN_MIC",
+               areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
+                                          : testSetDevices(stream.get(), address))
+
+static void checkGetHwAVSync(IDevice* device) {
+    Result res;
+    AudioHwSync sync;
+    ASSERT_OK(device->getHwAvSync(returnIn(res, sync)));
+    if (res == Result::NOT_SUPPORTED) {
+        return doc::partialTest("getHwAvSync is not supported");
+    }
+    ASSERT_OK(res);
+}
+TEST_IO_STREAM(GetHwAvSync, "Get hardware sync can not fail", checkGetHwAVSync(device.get()));
+
+TEST_P(InputStreamTest, updateSinkMetadata) {
+    doc::test("The HAL should not crash on metadata change");
+
+    hidl_enum_range<AudioSource> range;
+    // Test all possible track configuration
+    for (AudioSource source : range) {
+        for (float volume : {0.0, 0.5, 1.0}) {
+            const SinkMetadata metadata = {{{.source = source, .gain = volume}}};
+            ASSERT_OK(stream->updateSinkMetadata(metadata))
+                << "source=" << toString(source) << ", volume=" << volume;
+        }
+    }
+
+    // Do not test concurrent capture as this is not officially supported
+
+    // Set no metadata as if all stream track had stopped
+    ASSERT_OK(stream->updateSinkMetadata({}));
+
+    // Restore initial
+    ASSERT_OK(stream->updateSinkMetadata(initMetadata));
+}
+
+TEST_P(OutputStreamTest, SelectPresentation) {
+    doc::test("Verify that presentation selection does not crash");
+    ASSERT_RESULT(okOrNotSupported, stream->selectPresentation(0, 0));
+}
+
+TEST_P(OutputStreamTest, updateSourceMetadata) {
+    doc::test("The HAL should not crash on metadata change");
+
+    hidl_enum_range<AudioUsage> usageRange;
+    hidl_enum_range<AudioContentType> contentRange;
+    // Test all possible track configuration
+    for (auto usage : usageRange) {
+        for (auto content : contentRange) {
+            for (float volume : {0.0, 0.5, 1.0}) {
+                const SourceMetadata metadata = {{{usage, content, volume}}};
+                ASSERT_OK(stream->updateSourceMetadata(metadata))
+                    << "usage=" << toString(usage) << ", content=" << toString(content)
+                    << ", volume=" << volume;
+            }
+        }
+    }
+
+    // Set many track of different configuration
+    ASSERT_OK(stream->updateSourceMetadata(
+        {{{AudioUsage::MEDIA, AudioContentType::MUSIC, 0.1},
+          {AudioUsage::VOICE_COMMUNICATION, AudioContentType::SPEECH, 1.0},
+          {AudioUsage::ALARM, AudioContentType::SONIFICATION, 0.0},
+          {AudioUsage::ASSISTANT, AudioContentType::UNKNOWN, 0.3}}}));
+
+    // Set no metadata as if all stream track had stopped
+    ASSERT_OK(stream->updateSourceMetadata({}));
+
+    // Restore initial
+    ASSERT_OK(stream->updateSourceMetadata(initMetadata));
+}
+
+TEST_F(AudioPrimaryHidlTest, setMode) {
+    doc::test("Make sure setMode always succeeds if mode is valid and fails otherwise");
+    // Test Invalid values
+    for (int mode : {-2, -1, int(AudioMode::IN_COMMUNICATION) + 1}) {
+        ASSERT_RESULT(Result::INVALID_ARGUMENTS, device->setMode(AudioMode(mode)))
+            << "mode=" << mode;
+    }
+    // Test valid values
+    for (AudioMode mode : {AudioMode::IN_CALL, AudioMode::IN_COMMUNICATION, AudioMode::RINGTONE,
+                           AudioMode::NORMAL /* Make sure to leave the test in normal mode */}) {
+        ASSERT_OK(device->setMode(mode)) << "mode=" << toString(mode);
+    }
+}
+
+TEST_F(AudioPrimaryHidlTest, setBtHfpSampleRate) {
+    doc::test(
+        "Make sure setBtHfpSampleRate either succeeds or "
+        "indicates that it is not supported at all, or that the provided value is invalid");
+    for (auto samplingRate : {8000, 16000, 22050, 24000}) {
+        ASSERT_RESULT(okOrNotSupportedOrInvalidArgs, device->setBtHfpSampleRate(samplingRate));
+    }
+}
+
+TEST_F(AudioPrimaryHidlTest, setBtHfpVolume) {
+    doc::test(
+        "Make sure setBtHfpVolume is either not supported or "
+        "only succeed if volume is in [0,1]");
+    auto ret = device->setBtHfpVolume(0.0);
+    ASSERT_TRUE(ret.isOk());
+    if (ret == Result::NOT_SUPPORTED) {
+        doc::partialTest("setBtHfpVolume is not supported");
+        return;
+    }
+    testUnitaryGain([](float volume) { return device->setBtHfpVolume(volume); });
+}
+
+TEST_F(AudioPrimaryHidlTest, setBtScoHeadsetDebugName) {
+    doc::test(
+        "Make sure setBtScoHeadsetDebugName either succeeds or "
+        "indicates that it is not supported");
+    ASSERT_RESULT(okOrNotSupported, device->setBtScoHeadsetDebugName("test"));
+}
+
+TEST_F(AudioPrimaryHidlTest, updateRotation) {
+    doc::test("Check that the hal can receive the current rotation");
+    for (Rotation rotation : {Rotation::DEG_0, Rotation::DEG_90, Rotation::DEG_180,
+                              Rotation::DEG_270, Rotation::DEG_0}) {
+        ASSERT_RESULT(okOrNotSupported, device->updateRotation(rotation));
+    }
+}
+
+TEST_F(BoolAccessorPrimaryHidlTest, setGetBtHfpEnabled) {
+    doc::test("Query and set the BT HFP state");
+    testAccessors<OPTIONAL>("BtHfpEnabled", Initial{false, OPTIONAL}, {true},
+                            &IPrimaryDevice::setBtHfpEnabled, &IPrimaryDevice::getBtHfpEnabled);
+}
diff --git a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h
new file mode 100644
index 0000000..8415053
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include PATH(android/hardware/audio/FILE_VERSION/IStream.h)
+#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include <hidl/HidlSupport.h>
+
+using ::android::hardware::hidl_bitfield;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::audio::common::CPP_VERSION::AudioChannelMask;
+using ::android::hardware::audio::common::CPP_VERSION::AudioFormat;
+using ::android::hardware::audio::CPP_VERSION::IStream;
+using ::android::hardware::audio::CPP_VERSION::ParameterValue;
+using ::android::hardware::audio::CPP_VERSION::Result;
+
+using namespace ::android::hardware::audio::common::test::utility;
+
+using Rotation = ::android::hardware::audio::CPP_VERSION::IPrimaryDevice::Rotation;
+using ::android::hardware::audio::common::CPP_VERSION::AudioContentType;
+using ::android::hardware::audio::common::CPP_VERSION::AudioUsage;
+using ::android::hardware::audio::CPP_VERSION::MicrophoneInfo;
+#if MAJOR_VERSION < 5
+using ::android::hardware::audio::CPP_VERSION::SinkMetadata;
+using ::android::hardware::audio::CPP_VERSION::SourceMetadata;
+#else
+using ::android::hardware::audio::common::CPP_VERSION::SinkMetadata;
+using ::android::hardware::audio::common::CPP_VERSION::SourceMetadata;
+#endif
+
+struct Parameters {
+    template <class T, class ReturnIn>
+    static auto get(T t, hidl_vec<hidl_string> keys, ReturnIn returnIn) {
+        hidl_vec<ParameterValue> context;
+        return t->getParameters(context, keys, returnIn);
+    }
+    template <class T>
+    static auto set(T t, hidl_vec<ParameterValue> values) {
+        hidl_vec<ParameterValue> context;
+        return t->setParameters(context, values);
+    }
+};
+
+struct GetSupported {
+    static auto getFormat(IStream* stream) {
+        auto ret = stream->getFormat();
+        EXPECT_TRUE(ret.isOk());
+        return ret.withDefault({});
+    }
+    static Result sampleRates(IStream* stream, hidl_vec<uint32_t>& rates) {
+        Result res;
+        EXPECT_OK(stream->getSupportedSampleRates(getFormat(stream), returnIn(res, rates)));
+        return res;
+    }
+
+    static Result channelMasks(IStream* stream,
+                               hidl_vec<hidl_bitfield<AudioChannelMask>>& channels) {
+        Result res;
+        EXPECT_OK(stream->getSupportedChannelMasks(getFormat(stream), returnIn(res, channels)));
+        return res;
+    }
+
+    static Result formats(IStream* stream, hidl_vec<AudioFormat>& capabilities) {
+        EXPECT_OK(stream->getSupportedFormats(returnIn(capabilities)));
+        // TODO: this should be an optional function
+        return Result::OK;
+    }
+};
+
+template <class T>
+auto dump(T t, hidl_handle handle) {
+    return t->debug(handle, {/* options */});
+}
diff --git a/audio/core/all-versions/vts/functional/5.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/5.0/AudioPrimaryHidlHalTest.cpp
new file mode 100644
index 0000000..bdb17cd
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/5.0/AudioPrimaryHidlHalTest.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <math.h>
+
+// pull in all the <= 4.0 tests
+#include "4.0/AudioPrimaryHidlHalTest.cpp"
+
+TEST_P(InputStreamTest, SetMicrophoneDirection) {
+    doc::test("Make sure setMicrophoneDirection correctly handles valid & invalid arguments");
+
+    // MicrophoneDirection dir = MicrophoneDirection::FRONT;
+    for (MicrophoneDirection dir : android::hardware::hidl_enum_range<MicrophoneDirection>()) {
+        ASSERT_RESULT(okOrNotSupported, stream->setMicrophoneDirection(dir));
+    }
+
+    // Bogus values
+    for (auto dir : {42, -1, 4}) {
+        ASSERT_RESULT(invalidArgsOrNotSupported,
+                      stream->setMicrophoneDirection(MicrophoneDirection(dir)));
+    }
+}
+
+TEST_P(InputStreamTest, SetMicrophoneFieldDimension) {
+    doc::test("Make sure setMicrophoneFieldDimension correctly handles valid & invalid arguments");
+
+    // Valid zoom values -1.0 -> 1.0
+    float incr = 0.1f;
+    for (float val = -1.0f; val <= 1.0; val += incr) {
+        ASSERT_RESULT(okOrNotSupported, stream->setMicrophoneFieldDimension(val));
+    }
+
+    // Bogus values
+    for (float val = 1.0f + incr; val <= 10.0f; val += incr) {
+        ASSERT_RESULT(invalidArgsOrNotSupported, stream->setMicrophoneFieldDimension(val));
+        ASSERT_RESULT(invalidArgsOrNotSupported, stream->setMicrophoneFieldDimension(-val));
+    }
+    // Some extremes
+    ASSERT_RESULT(invalidArgsOrNotSupported, stream->setMicrophoneFieldDimension(NAN));
+    ASSERT_RESULT(invalidArgsOrNotSupported, stream->setMicrophoneFieldDimension(-NAN));
+    ASSERT_RESULT(invalidArgsOrNotSupported, stream->setMicrophoneFieldDimension(INFINITY));
+    ASSERT_RESULT(invalidArgsOrNotSupported, stream->setMicrophoneFieldDimension(-INFINITY));
+}
diff --git a/audio/core/all-versions/vts/functional/Android.bp b/audio/core/all-versions/vts/functional/Android.bp
new file mode 100644
index 0000000..88fdb5a
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/Android.bp
@@ -0,0 +1,84 @@
+//
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_defaults {
+    name: "VtsHalAudioTargetTest_defaults",
+    defaults: ["VtsHalTargetTestDefaults"],
+    static_libs: [
+        "android.hardware.audio.common.test.utility",
+        "libaudiopolicycomponents",
+        "libmedia_helper",
+        "libxml2",
+    ],
+    shared_libs: [
+        "libfmq",
+    ],
+    header_libs: [
+        "android.hardware.audio.common.util@all-versions",
+    ],
+    test_suites: ["general-tests"],
+}
+
+cc_test {
+    name: "VtsHalAudioV2_0TargetTest",
+    defaults: ["VtsHalAudioTargetTest_defaults"],
+    srcs: [
+        "2.0/AudioPrimaryHidlHalTest.cpp",
+    ],
+    static_libs: [
+        "android.hardware.audio@2.0",
+        "android.hardware.audio.common@2.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_test {
+    name: "VtsHalAudioV4_0TargetTest",
+    defaults: ["VtsHalAudioTargetTest_defaults"],
+    srcs: [
+        "4.0/AudioPrimaryHidlHalTest.cpp",
+    ],
+    static_libs: [
+        "android.hardware.audio@4.0",
+        "android.hardware.audio.common@4.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_test {
+    name: "VtsHalAudioV5_0TargetTest",
+    defaults: ["VtsHalAudioTargetTest_defaults"],
+    srcs: [
+        "5.0/AudioPrimaryHidlHalTest.cpp",
+    ],
+    static_libs: [
+        "android.hardware.audio@5.0",
+        "android.hardware.audio.common@5.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
diff --git a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
new file mode 100644
index 0000000..7f8b6a0
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
@@ -0,0 +1,1374 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VtsHalAudioVTargetTest"
+
+#include <algorithm>
+#include <cmath>
+#include <cstddef>
+#include <cstdio>
+#include <initializer_list>
+#include <limits>
+#include <list>
+#include <string>
+#include <vector>
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <hwbinder/IPCThreadState.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include <android-base/logging.h>
+
+#include PATH(android/hardware/audio/FILE_VERSION/IDevice.h)
+#include PATH(android/hardware/audio/FILE_VERSION/IDevicesFactory.h)
+#include PATH(android/hardware/audio/FILE_VERSION/IPrimaryDevice.h)
+#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+
+#include <Serializer.h>
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+
+#include <common/all-versions/VersionUtils.h>
+
+#include "utility/AssertOk.h"
+#include "utility/Documentation.h"
+#include "utility/EnvironmentTearDown.h"
+#include "utility/PrettyPrintAudioTypes.h"
+#include "utility/ReturnIn.h"
+#include "utility/ValidateXml.h"
+
+/** Provide version specific functions that are used in the generic tests */
+#if MAJOR_VERSION == 2
+#include "2.0/AudioPrimaryHidlHalUtils.h"
+#elif MAJOR_VERSION >= 4
+#include "4.0/AudioPrimaryHidlHalUtils.h"
+#endif
+
+using std::initializer_list;
+using std::list;
+using std::string;
+using std::to_string;
+using std::vector;
+
+using ::android::AudioPolicyConfig;
+using ::android::HwModule;
+using ::android::NO_INIT;
+using ::android::OK;
+using ::android::sp;
+using ::android::status_t;
+using ::android::hardware::EventFlag;
+using ::android::hardware::hidl_bitfield;
+using ::android::hardware::hidl_enum_range;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::IPCThreadState;
+using ::android::hardware::kSynchronizedReadWrite;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+using ::android::hardware::audio::common::utils::mkEnumBitfield;
+
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::test::utility;
+using namespace ::android::hardware::audio::CPP_VERSION;
+
+// Typical accepted results from interface methods
+static auto okOrNotSupported = {Result::OK, Result::NOT_SUPPORTED};
+static auto okOrNotSupportedOrInvalidArgs = {Result::OK, Result::NOT_SUPPORTED,
+                                             Result::INVALID_ARGUMENTS};
+static auto okOrInvalidStateOrNotSupported = {Result::OK, Result::INVALID_STATE,
+                                              Result::NOT_SUPPORTED};
+static auto invalidArgsOrNotSupported = {Result::INVALID_ARGUMENTS, Result::NOT_SUPPORTED};
+static auto invalidStateOrNotSupported = {Result::INVALID_STATE, Result::NOT_SUPPORTED};
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////// Environment /////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+class AudioHidlTestEnvironment : public ::Environment {
+   public:
+    virtual void registerTestServices() override { registerTestService<IDevicesFactory>(); }
+};
+
+// Instance to register global tearDown
+static AudioHidlTestEnvironment* environment;
+
+class HidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   protected:
+    // Convenient member to store results
+    Result res;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+////////////////////////// Audio policy configuration ////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+static const std::vector<const char*> kConfigLocations = {"/odm/etc", "/vendor/etc", "/system/etc"};
+static constexpr char kConfigFileName[] = "audio_policy_configuration.xml";
+
+// Stringify the argument.
+#define QUOTE(x) #x
+#define STRINGIFY(x) QUOTE(x)
+
+TEST(CheckConfig, audioPolicyConfigurationValidation) {
+    RecordProperty("description",
+                   "Verify that the audio policy configuration file "
+                   "is valid according to the schema");
+
+    const char* xsd = "/data/local/tmp/audio_policy_configuration_" STRINGIFY(CPP_VERSION) ".xsd";
+    EXPECT_ONE_VALID_XML_MULTIPLE_LOCATIONS(kConfigFileName, kConfigLocations, xsd);
+}
+
+struct PolicyConfigData {
+    android::HwModuleCollection hwModules;
+    android::DeviceVector availableOutputDevices;
+    android::DeviceVector availableInputDevices;
+    sp<android::DeviceDescriptor> defaultOutputDevice;
+};
+
+class PolicyConfig : private PolicyConfigData, public AudioPolicyConfig {
+   public:
+    PolicyConfig()
+        : AudioPolicyConfig(hwModules, availableOutputDevices, availableInputDevices,
+                            defaultOutputDevice) {
+        for (const char* location : kConfigLocations) {
+            std::string path = std::string(location) + '/' + kConfigFileName;
+            if (access(path.c_str(), F_OK) == 0) {
+                mFilePath = path;
+                break;
+            }
+        }
+        mStatus = android::deserializeAudioPolicyFile(mFilePath.c_str(), this);
+        if (mStatus == OK) {
+            mPrimaryModule = getHwModules().getModuleFromName("primary");
+        }
+    }
+    status_t getStatus() const { return mStatus; }
+    std::string getError() const {
+        if (mFilePath.empty()) {
+            return std::string{"Could not find "} + kConfigFileName +
+                   " file in: " + testing::PrintToString(kConfigLocations);
+        } else {
+            return "Invalid config file: " + mFilePath;
+        }
+    }
+    const std::string& getFilePath() const { return mFilePath; }
+    sp<const HwModule> getPrimaryModule() const { return mPrimaryModule; }
+
+   private:
+    status_t mStatus = NO_INIT;
+    std::string mFilePath;
+    sp<HwModule> mPrimaryModule = nullptr;
+};
+
+// Cached policy config after parsing for faster test startup
+const PolicyConfig& getCachedPolicyConfig() {
+    static std::unique_ptr<PolicyConfig> policyConfig = [] {
+        auto config = std::make_unique<PolicyConfig>();
+        environment->registerTearDown([] { policyConfig.reset(); });
+        return config;
+    }();
+    return *policyConfig;
+}
+
+class AudioPolicyConfigTest : public HidlTest {
+   public:
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(HidlTest::SetUp());  // setup base
+
+        auto& policyConfig = getCachedPolicyConfig();
+        ASSERT_EQ(0, policyConfig.getStatus()) << policyConfig.getError();
+
+        mPrimaryConfig = policyConfig.getPrimaryModule();
+        ASSERT_TRUE(mPrimaryConfig) << "Could not find primary module in configuration file: "
+                                    << policyConfig.getFilePath();
+    }
+    sp<const HwModule> mPrimaryConfig = nullptr;
+};
+
+TEST_F(AudioPolicyConfigTest, LoadAudioPolicyXMLConfiguration) {
+    doc::test("Test parsing audio_policy_configuration.xml (called in SetUp)");
+}
+
+//////////////////////////////////////////////////////////////////////////////
+////////////////////// getService audio_devices_factory //////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+// Test all audio devices
+class AudioHidlTest : public AudioPolicyConfigTest {
+   public:
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(HidlTest::SetUp());  // setup base
+
+        if (devicesFactory == nullptr) {
+            environment->registerTearDown([] { devicesFactory.clear(); });
+            devicesFactory = ::testing::VtsHalHidlTargetTestBase::getService<IDevicesFactory>(
+                environment->getServiceName<IDevicesFactory>("default"));
+        }
+        ASSERT_TRUE(devicesFactory != nullptr);
+    }
+
+   protected:
+    // Cache the devicesFactory retrieval to speed up each test by ~0.5s
+    static sp<IDevicesFactory> devicesFactory;
+};
+sp<IDevicesFactory> AudioHidlTest::devicesFactory;
+
+TEST_F(AudioHidlTest, GetAudioDevicesFactoryService) {
+    doc::test("Test the getService (called in SetUp)");
+}
+
+TEST_F(AudioHidlTest, OpenDeviceInvalidParameter) {
+    doc::test("Test passing an invalid parameter to openDevice");
+    Result result;
+    sp<IDevice> device;
+#if MAJOR_VERSION == 2
+    auto invalidDevice = IDevicesFactory::Device(-1);
+#elif MAJOR_VERSION >= 4
+    auto invalidDevice = "Non existing device";
+#endif
+    ASSERT_OK(devicesFactory->openDevice(invalidDevice, returnIn(result, device)));
+    ASSERT_EQ(Result::INVALID_ARGUMENTS, result);
+    ASSERT_TRUE(device == nullptr);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+/////////////////////////////// openDevice primary ///////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+// Test the primary device
+class AudioPrimaryHidlTest : public AudioHidlTest {
+   public:
+    /** Primary HAL test are NOT thread safe. */
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(AudioHidlTest::SetUp());  // setup base
+
+        if (device == nullptr) {
+            initPrimaryDevice();
+            ASSERT_TRUE(device != nullptr);
+            environment->registerTearDown([] { device.clear(); });
+        }
+    }
+
+   protected:
+    // Cache the device opening to speed up each test by ~0.5s
+    static sp<IPrimaryDevice> device;
+
+   private:
+    void initPrimaryDevice() {
+        Result result;
+#if MAJOR_VERSION == 2
+        sp<IDevice> baseDevice;
+        ASSERT_OK(devicesFactory->openDevice(IDevicesFactory::Device::PRIMARY,
+                                             returnIn(result, baseDevice)));
+        ASSERT_OK(result);
+        ASSERT_TRUE(baseDevice != nullptr);
+
+        device = IPrimaryDevice::castFrom(baseDevice);
+#elif MAJOR_VERSION >= 4
+        ASSERT_OK(devicesFactory->openPrimaryDevice(returnIn(result, device)));
+        ASSERT_OK(result);
+#endif
+    }
+};
+sp<IPrimaryDevice> AudioPrimaryHidlTest::device;
+
+TEST_F(AudioPrimaryHidlTest, OpenPrimaryDevice) {
+    doc::test("Test the openDevice (called in SetUp)");
+}
+
+TEST_F(AudioPrimaryHidlTest, Init) {
+    doc::test("Test that the audio primary hal initialized correctly");
+    ASSERT_OK(device->initCheck());
+}
+
+//////////////////////////////////////////////////////////////////////////////
+///////////////////// {set,get}{Master,Mic}{Mute,Volume} /////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+template <class Property>
+class AccessorPrimaryHidlTest : public AudioPrimaryHidlTest {
+   protected:
+    enum Optionality { REQUIRED, OPTIONAL };
+    struct Initial {  // Initial property value
+        Initial(Property value, Optionality check = REQUIRED) : value(value), check(check) {}
+        Property value;
+        Optionality check;  // If this initial value should be checked
+    };
+    /** Test a property getter and setter.
+     *  The getter and/or the setter may return NOT_SUPPORTED if optionality == OPTIONAL.
+     */
+    template <Optionality optionality = REQUIRED, class Getter, class Setter>
+    void testAccessors(const string& propertyName, const Initial expectedInitial,
+                       list<Property> valuesToTest, Setter setter, Getter getter,
+                       const vector<Property>& invalidValues = {}) {
+        const auto expectedResults = {Result::OK,
+                                      optionality == OPTIONAL ? Result::NOT_SUPPORTED : Result::OK};
+
+        Property initialValue = expectedInitial.value;
+        ASSERT_OK((device.get()->*getter)(returnIn(res, initialValue)));
+        ASSERT_RESULT(expectedResults, res);
+        if (res == Result::OK && expectedInitial.check == REQUIRED) {
+            EXPECT_EQ(expectedInitial.value, initialValue);
+        }
+
+        valuesToTest.push_front(expectedInitial.value);
+        valuesToTest.push_back(initialValue);
+        for (Property setValue : valuesToTest) {
+            SCOPED_TRACE("Test " + propertyName + " getter and setter for " +
+                         testing::PrintToString(setValue));
+            auto ret = (device.get()->*setter)(setValue);
+            ASSERT_RESULT(expectedResults, ret);
+            if (ret == Result::NOT_SUPPORTED) {
+                doc::partialTest(propertyName + " setter is not supported");
+                break;
+            }
+            Property getValue;
+            // Make sure the getter returns the same value just set
+            ASSERT_OK((device.get()->*getter)(returnIn(res, getValue)));
+            ASSERT_RESULT(expectedResults, res);
+            if (res == Result::NOT_SUPPORTED) {
+                doc::partialTest(propertyName + " getter is not supported");
+                continue;
+            }
+            EXPECT_EQ(setValue, getValue);
+        }
+
+        for (Property invalidValue : invalidValues) {
+            SCOPED_TRACE("Try to set " + propertyName + " with the invalid value " +
+                         testing::PrintToString(invalidValue));
+            EXPECT_RESULT(invalidArgsOrNotSupported, (device.get()->*setter)(invalidValue));
+        }
+
+        // Restore initial value
+        EXPECT_RESULT(expectedResults, (device.get()->*setter)(initialValue));
+    }
+};
+
+using BoolAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<bool>;
+
+TEST_F(BoolAccessorPrimaryHidlTest, MicMuteTest) {
+    doc::test("Check that the mic can be muted and unmuted");
+    testAccessors("mic mute", Initial{false}, {true}, &IDevice::setMicMute, &IDevice::getMicMute);
+    // TODO: check that the mic is really muted (all sample are 0)
+}
+
+TEST_F(BoolAccessorPrimaryHidlTest, MasterMuteTest) {
+    doc::test("If master mute is supported, try to mute and unmute the master output");
+    testAccessors<OPTIONAL>("master mute", Initial{false}, {true}, &IDevice::setMasterMute,
+                            &IDevice::getMasterMute);
+    // TODO: check that the master volume is really muted
+}
+
+using FloatAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<float>;
+TEST_F(FloatAccessorPrimaryHidlTest, MasterVolumeTest) {
+    doc::test("Test the master volume if supported");
+    testAccessors<OPTIONAL>(
+        "master volume", Initial{1}, {0, 0.5}, &IDevice::setMasterVolume, &IDevice::getMasterVolume,
+        {-0.1, 1.1, NAN, INFINITY, -INFINITY, 1 + std::numeric_limits<float>::epsilon()});
+    // TODO: check that the master volume is really changed
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////// AudioPatches ////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+class AudioPatchPrimaryHidlTest : public AudioPrimaryHidlTest {
+   protected:
+    bool areAudioPatchesSupported() {
+        auto result = device->supportsAudioPatches();
+        EXPECT_IS_OK(result);
+        return result;
+    }
+};
+
+TEST_F(AudioPatchPrimaryHidlTest, AudioPatches) {
+    doc::test("Test if audio patches are supported");
+    if (!areAudioPatchesSupported()) {
+        doc::partialTest("Audio patches are not supported");
+        return;
+    }
+    // TODO: test audio patches
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////// Required and recommended audio format support ///////////////
+// From:
+// https://source.android.com/compatibility/android-cdd.html#5_4_audio_recording
+// From:
+// https://source.android.com/compatibility/android-cdd.html#5_5_audio_playback
+/////////// TODO: move to the beginning of the file for easier update ////////
+//////////////////////////////////////////////////////////////////////////////
+
+class AudioConfigPrimaryTest : public AudioPatchPrimaryHidlTest {
+   public:
+    // for retro compatibility only test the primary device IN_BUILTIN_MIC
+    // FIXME: in the next audio HAL version, test all available devices
+    static bool primaryHasMic() {
+        auto& policyConfig = getCachedPolicyConfig();
+        if (policyConfig.getStatus() != OK || policyConfig.getPrimaryModule() == nullptr) {
+            return true;  // Could not get the information, run all tests
+        }
+        auto getMic = [](auto& devs) { return devs.getDevice(
+                AUDIO_DEVICE_IN_BUILTIN_MIC, {}, AUDIO_FORMAT_DEFAULT); };
+        auto primaryMic = getMic(policyConfig.getPrimaryModule()->getDeclaredDevices());
+        auto availableMic = getMic(policyConfig.getAvailableInputDevices());
+
+        return primaryMic != nullptr && primaryMic->equals(availableMic);
+    }
+
+    // Cache result ?
+    static const vector<AudioConfig> getRequiredSupportPlaybackAudioConfig() {
+        return combineAudioConfig({AudioChannelMask::OUT_STEREO, AudioChannelMask::OUT_MONO},
+                                  {8000, 11025, 16000, 22050, 32000, 44100},
+                                  {AudioFormat::PCM_16_BIT});
+    }
+
+    static const vector<AudioConfig> getRecommendedSupportPlaybackAudioConfig() {
+        return combineAudioConfig({AudioChannelMask::OUT_STEREO, AudioChannelMask::OUT_MONO},
+                                  {24000, 48000}, {AudioFormat::PCM_16_BIT});
+    }
+
+    static const vector<AudioConfig> getSupportedPlaybackAudioConfig() {
+        // TODO: retrieve audio config supported by the platform
+        // as declared in the policy configuration
+        return {};
+    }
+
+    static const vector<AudioConfig> getRequiredSupportCaptureAudioConfig() {
+        if (!primaryHasMic()) return {};
+        return combineAudioConfig({AudioChannelMask::IN_MONO}, {8000, 11025, 16000, 44100},
+                                  {AudioFormat::PCM_16_BIT});
+    }
+    static const vector<AudioConfig> getRecommendedSupportCaptureAudioConfig() {
+        if (!primaryHasMic()) return {};
+        return combineAudioConfig({AudioChannelMask::IN_STEREO}, {22050, 48000},
+                                  {AudioFormat::PCM_16_BIT});
+    }
+    static const vector<AudioConfig> getSupportedCaptureAudioConfig() {
+        // TODO: retrieve audio config supported by the platform
+        // as declared in the policy configuration
+        return {};
+    }
+
+   private:
+    static const vector<AudioConfig> combineAudioConfig(vector<AudioChannelMask> channelMasks,
+                                                        vector<uint32_t> sampleRates,
+                                                        vector<AudioFormat> formats) {
+        vector<AudioConfig> configs;
+        for (auto channelMask : channelMasks) {
+            for (auto sampleRate : sampleRates) {
+                for (auto format : formats) {
+                    AudioConfig config{};
+                    // leave offloadInfo to 0
+                    config.channelMask = mkEnumBitfield(channelMask);
+                    config.sampleRateHz = sampleRate;
+                    config.format = format;
+                    // FIXME: leave frameCount to 0 ?
+                    configs.push_back(config);
+                }
+            }
+        }
+        return configs;
+    }
+};
+
+/** Generate a test name based on an audio config.
+ *
+ * As the only parameter changing are channel mask and sample rate,
+ * only print those ones in the test name.
+ */
+static string generateTestName(const testing::TestParamInfo<AudioConfig>& info) {
+    const AudioConfig& config = info.param;
+    return to_string(info.index) + "__" + to_string(config.sampleRateHz) + "_" +
+           // "MONO" is more clear than "FRONT_LEFT"
+           ((config.channelMask == mkEnumBitfield(AudioChannelMask::OUT_MONO) ||
+             config.channelMask == mkEnumBitfield(AudioChannelMask::IN_MONO))
+                ? "MONO"
+                : ::testing::PrintToString(config.channelMask));
+}
+
+//////////////////////////////////////////////////////////////////////////////
+///////////////////////////// getInputBufferSize /////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+// FIXME: execute input test only if platform declares
+// android.hardware.microphone
+//        how to get this value ? is it a property ???
+
+class AudioCaptureConfigPrimaryTest : public AudioConfigPrimaryTest,
+                                      public ::testing::WithParamInterface<AudioConfig> {
+   protected:
+    void inputBufferSizeTest(const AudioConfig& audioConfig, bool supportRequired) {
+        uint64_t bufferSize;
+        ASSERT_OK(device->getInputBufferSize(audioConfig, returnIn(res, bufferSize)));
+
+        switch (res) {
+            case Result::INVALID_ARGUMENTS:
+                EXPECT_FALSE(supportRequired);
+                break;
+            case Result::OK:
+                // Check that the buffer is of a sane size
+                // For now only that it is > 0
+                EXPECT_GT(bufferSize, uint64_t(0));
+                break;
+            default:
+                FAIL() << "Invalid return status: " << ::testing::PrintToString(res);
+        }
+    }
+};
+
+// Test that the required capture config and those declared in the policy are
+// indeed supported
+class RequiredInputBufferSizeTest : public AudioCaptureConfigPrimaryTest {};
+TEST_P(RequiredInputBufferSizeTest, RequiredInputBufferSizeTest) {
+    doc::test(
+        "Input buffer size must be retrievable for a format with required "
+        "support.");
+    inputBufferSizeTest(GetParam(), true);
+}
+INSTANTIATE_TEST_CASE_P(
+    RequiredInputBufferSize, RequiredInputBufferSizeTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportCaptureAudioConfig()),
+    &generateTestName);
+INSTANTIATE_TEST_CASE_P(
+    SupportedInputBufferSize, RequiredInputBufferSizeTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedCaptureAudioConfig()),
+    &generateTestName);
+
+// Test that the recommended capture config are supported or lead to a
+// INVALID_ARGUMENTS return
+class OptionalInputBufferSizeTest : public AudioCaptureConfigPrimaryTest {};
+TEST_P(OptionalInputBufferSizeTest, OptionalInputBufferSizeTest) {
+    doc::test(
+        "Input buffer size should be retrievable for a format with recommended "
+        "support.");
+    inputBufferSizeTest(GetParam(), false);
+}
+INSTANTIATE_TEST_CASE_P(
+    RecommendedCaptureAudioConfigSupport, OptionalInputBufferSizeTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportCaptureAudioConfig()),
+    &generateTestName);
+
+//////////////////////////////////////////////////////////////////////////////
+/////////////////////////////// setScreenState ///////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_F(AudioPrimaryHidlTest, setScreenState) {
+    doc::test("Check that the hal can receive the screen state");
+    for (bool turnedOn : {false, true, true, false, false}) {
+        ASSERT_RESULT(okOrNotSupported, device->setScreenState(turnedOn));
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////// {get,set}Parameters /////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_F(AudioPrimaryHidlTest, getParameters) {
+    doc::test("Check that the hal can set and get parameters");
+    hidl_vec<ParameterValue> context;
+    hidl_vec<hidl_string> keys;
+    hidl_vec<ParameterValue> values;
+    ASSERT_OK(Parameters::get(device, keys, returnIn(res, values)));
+    ASSERT_OK(Parameters::set(device, values));
+    values.resize(0);
+    ASSERT_OK(Parameters::set(device, values));
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////// debugDebug //////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+template <class DebugDump>
+static void testDebugDump(DebugDump debugDump) {
+    // File descriptors to our pipe. fds[0] corresponds to the read end and
+    // fds[1] to the write end.
+    int fds[2];
+    ASSERT_EQ(0, pipe2(fds, O_NONBLOCK)) << errno;
+
+    // Make sure that the pipe is at least 1 MB in size. The test process runs
+    // in su domain, so it should be safe to make this call.
+    fcntl(fds[0], F_SETPIPE_SZ, 1 << 20);
+
+    // Wrap the temporary file file descriptor in a native handle
+    auto* nativeHandle = native_handle_create(1, 0);
+    ASSERT_NE(nullptr, nativeHandle);
+    nativeHandle->data[0] = fds[1];
+
+    // Wrap this native handle in a hidl handle
+    hidl_handle handle;
+    handle.setTo(nativeHandle, false /*take ownership*/);
+
+    ASSERT_OK(debugDump(handle));
+
+    // Check that at least one bit was written by the hal
+    // TODO: debugDump does not return a Result.
+    // This mean that the hal can not report that it not implementing the
+    // function.
+    char buff;
+    if (read(fds[0], &buff, 1) != 1) {
+        doc::note("debugDump does not seem implemented");
+    }
+    EXPECT_EQ(0, close(fds[0])) << errno;
+    EXPECT_EQ(0, close(fds[1])) << errno;
+}
+
+TEST_F(AudioPrimaryHidlTest, DebugDump) {
+    doc::test("Check that the hal can dump its state without error");
+    testDebugDump([](const auto& handle) { return dump(device, handle); });
+}
+
+TEST_F(AudioPrimaryHidlTest, DebugDumpInvalidArguments) {
+    doc::test("Check that the hal dump doesn't crash on invalid arguments");
+    ASSERT_OK(dump(device, hidl_handle()));
+}
+
+//////////////////////////////////////////////////////////////////////////////
+////////////////////////// open{Output,Input}Stream //////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+template <class Stream>
+class OpenStreamTest : public AudioConfigPrimaryTest,
+                       public ::testing::WithParamInterface<AudioConfig> {
+   protected:
+    template <class Open>
+    void testOpen(Open openStream, const AudioConfig& config) {
+        // FIXME: Open a stream without an IOHandle
+        //        This is not required to be accepted by hal implementations
+        AudioIoHandle ioHandle = (AudioIoHandle)AudioHandleConsts::AUDIO_IO_HANDLE_NONE;
+        AudioConfig suggestedConfig{};
+        ASSERT_OK(openStream(ioHandle, config, returnIn(res, stream, suggestedConfig)));
+
+        // TODO: only allow failure for RecommendedPlaybackAudioConfig
+        switch (res) {
+            case Result::OK:
+                ASSERT_TRUE(stream != nullptr);
+                audioConfig = config;
+                break;
+            case Result::INVALID_ARGUMENTS:
+                ASSERT_TRUE(stream == nullptr);
+                AudioConfig suggestedConfigRetry;
+                // Could not open stream with config, try again with the
+                // suggested one
+                ASSERT_OK(openStream(ioHandle, suggestedConfig,
+                                     returnIn(res, stream, suggestedConfigRetry)));
+                // This time it must succeed
+                ASSERT_OK(res);
+                ASSERT_TRUE(stream != nullptr);
+                audioConfig = suggestedConfig;
+                break;
+            default:
+                FAIL() << "Invalid return status: " << ::testing::PrintToString(res);
+        }
+        open = true;
+    }
+
+    Return<Result> closeStream() {
+        open = false;
+        return stream->close();
+    }
+
+   private:
+    void TearDown() override {
+        if (open) {
+            ASSERT_OK(stream->close());
+        }
+    }
+
+   protected:
+    AudioConfig audioConfig;
+    DeviceAddress address = {};
+    sp<Stream> stream;
+    bool open = false;
+};
+
+////////////////////////////// openOutputStream //////////////////////////////
+
+class OutputStreamTest : public OpenStreamTest<IStreamOut> {
+    virtual void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
+        address.device = AudioDevice::OUT_DEFAULT;
+        const AudioConfig& config = GetParam();
+        // TODO: test all flag combination
+        auto flags = mkEnumBitfield(AudioOutputFlag::NONE);
+        testOpen(
+            [&](AudioIoHandle handle, AudioConfig config, auto cb) {
+#if MAJOR_VERSION == 2
+                return device->openOutputStream(handle, address, config, flags, cb);
+#elif MAJOR_VERSION >= 4
+                return device->openOutputStream(handle, address, config, flags, initMetadata, cb);
+#endif
+            },
+            config);
+    }
+#if MAJOR_VERSION >= 4
+
+   protected:
+    const SourceMetadata initMetadata = {
+        { { AudioUsage::MEDIA,
+            AudioContentType::MUSIC,
+            1 /* gain */ } }};
+#endif
+};
+TEST_P(OutputStreamTest, OpenOutputStreamTest) {
+    doc::test(
+        "Check that output streams can be open with the required and "
+        "recommended config");
+    // Open done in SetUp
+}
+INSTANTIATE_TEST_CASE_P(
+    RequiredOutputStreamConfigSupport, OutputStreamTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportPlaybackAudioConfig()),
+    &generateTestName);
+INSTANTIATE_TEST_CASE_P(
+    SupportedOutputStreamConfig, OutputStreamTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedPlaybackAudioConfig()),
+    &generateTestName);
+
+INSTANTIATE_TEST_CASE_P(
+    RecommendedOutputStreamConfigSupport, OutputStreamTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportPlaybackAudioConfig()),
+    &generateTestName);
+
+////////////////////////////// openInputStream //////////////////////////////
+
+class InputStreamTest : public OpenStreamTest<IStreamIn> {
+    virtual void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
+        address.device = AudioDevice::IN_DEFAULT;
+        const AudioConfig& config = GetParam();
+        // TODO: test all supported flags and source
+        auto flags = mkEnumBitfield(AudioInputFlag::NONE);
+        testOpen(
+            [&](AudioIoHandle handle, AudioConfig config, auto cb) {
+                return device->openInputStream(handle, address, config, flags, initMetadata, cb);
+            },
+            config);
+    }
+
+   protected:
+#if MAJOR_VERSION == 2
+    const AudioSource initMetadata = AudioSource::DEFAULT;
+#elif MAJOR_VERSION >= 4
+    const SinkMetadata initMetadata = {{{.source = AudioSource::DEFAULT, .gain = 1}}};
+#endif
+};
+
+TEST_P(InputStreamTest, OpenInputStreamTest) {
+    doc::test(
+        "Check that input streams can be open with the required and "
+        "recommended config");
+    // Open done in setup
+}
+INSTANTIATE_TEST_CASE_P(
+    RequiredInputStreamConfigSupport, InputStreamTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getRequiredSupportCaptureAudioConfig()),
+    &generateTestName);
+INSTANTIATE_TEST_CASE_P(
+    SupportedInputStreamConfig, InputStreamTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getSupportedCaptureAudioConfig()),
+    &generateTestName);
+
+INSTANTIATE_TEST_CASE_P(
+    RecommendedInputStreamConfigSupport, InputStreamTest,
+    ::testing::ValuesIn(AudioConfigPrimaryTest::getRecommendedSupportCaptureAudioConfig()),
+    &generateTestName);
+
+//////////////////////////////////////////////////////////////////////////////
+////////////////////////////// IStream getters ///////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+/** Unpack the provided result.
+ * If the result is not OK, register a failure and return an undefined value. */
+template <class R>
+static R extract(Return<R> ret) {
+    if (!ret.isOk()) {
+        EXPECT_IS_OK(ret);
+        return R{};
+    }
+    return ret;
+}
+
+/* Could not find a way to write a test for two parametrized class fixure
+ * thus use this macro do duplicate tests for Input and Output stream */
+#define TEST_IO_STREAM(test_name, documentation, code) \
+    TEST_P(InputStreamTest, test_name) {               \
+        doc::test(documentation);                      \
+        code;                                          \
+    }                                                  \
+    TEST_P(OutputStreamTest, test_name) {              \
+        doc::test(documentation);                      \
+        code;                                          \
+    }
+
+TEST_IO_STREAM(GetFrameCount, "Check that getting stream frame count does not crash the HAL.",
+               ASSERT_TRUE(stream->getFrameCount().isOk()))
+
+TEST_IO_STREAM(GetSampleRate, "Check that the stream sample rate == the one it was opened with",
+               ASSERT_EQ(audioConfig.sampleRateHz, extract(stream->getSampleRate())))
+
+TEST_IO_STREAM(GetChannelMask, "Check that the stream channel mask == the one it was opened with",
+               ASSERT_EQ(audioConfig.channelMask, extract(stream->getChannelMask())))
+
+TEST_IO_STREAM(GetFormat, "Check that the stream format == the one it was opened with",
+               ASSERT_EQ(audioConfig.format, extract(stream->getFormat())))
+
+// TODO: for now only check that the framesize is not incoherent
+TEST_IO_STREAM(GetFrameSize, "Check that the stream frame size == the one it was opened with",
+               ASSERT_GT(extract(stream->getFrameSize()), 0U))
+
+TEST_IO_STREAM(GetBufferSize, "Check that the stream buffer size== the one it was opened with",
+               ASSERT_GE(extract(stream->getBufferSize()), extract(stream->getFrameSize())));
+
+template <class Property, class CapabilityGetter>
+static void testCapabilityGetter(const string& name, IStream* stream,
+                                 CapabilityGetter capabilityGetter,
+                                 Return<Property> (IStream::*getter)(),
+                                 Return<Result> (IStream::*setter)(Property),
+                                 bool currentMustBeSupported = true) {
+    hidl_vec<Property> capabilities;
+    auto ret = capabilityGetter(stream, capabilities);
+    ASSERT_RESULT(okOrNotSupported, ret);
+    bool notSupported = ret == Result::NOT_SUPPORTED;
+    if (notSupported) {
+        doc::partialTest(name + " is not supported");
+        return;
+    };
+
+    if (currentMustBeSupported) {
+        ASSERT_NE(0U, capabilities.size()) << name << " must not return an empty list";
+        Property currentValue = extract((stream->*getter)());
+        EXPECT_TRUE(std::find(capabilities.begin(), capabilities.end(), currentValue) !=
+                    capabilities.end())
+            << "value returned by " << name << "() = " << testing::PrintToString(currentValue)
+            << " is not in the list of the supported ones " << toString(capabilities);
+    }
+
+    // Check that all declared supported values are indeed supported
+    for (auto capability : capabilities) {
+        auto ret = (stream->*setter)(capability);
+        ASSERT_TRUE(ret.isOk());
+        if (ret == Result::NOT_SUPPORTED) {
+            doc::partialTest("Setter is not supported");
+            return;
+        }
+        ASSERT_OK(ret);
+        ASSERT_EQ(capability, extract((stream->*getter)()));
+    }
+}
+
+TEST_IO_STREAM(SupportedSampleRate, "Check that the stream sample rate is declared as supported",
+               testCapabilityGetter("getSupportedSampleRate", stream.get(),
+                                    &GetSupported::sampleRates, &IStream::getSampleRate,
+                                    &IStream::setSampleRate,
+                                    // getSupportedSampleRate returns the native sampling rates,
+                                    // (the sampling rates that can be played without resampling)
+                                    // but other sampling rates can be supported by the HAL.
+                                    false))
+
+TEST_IO_STREAM(SupportedChannelMask, "Check that the stream channel mask is declared as supported",
+               testCapabilityGetter("getSupportedChannelMask", stream.get(),
+                                    &GetSupported::channelMasks, &IStream::getChannelMask,
+                                    &IStream::setChannelMask))
+
+TEST_IO_STREAM(SupportedFormat, "Check that the stream format is declared as supported",
+               testCapabilityGetter("getSupportedFormat", stream.get(), &GetSupported::formats,
+                                    &IStream::getFormat, &IStream::setFormat))
+
+static void testGetAudioProperties(IStream* stream, AudioConfig expectedConfig) {
+    uint32_t sampleRateHz;
+    auto mask = mkEnumBitfield<AudioChannelMask>({});
+    AudioFormat format;
+
+    stream->getAudioProperties(returnIn(sampleRateHz, mask, format));
+
+    // FIXME: the qcom hal it does not currently negotiate the sampleRate &
+    // channel mask
+    EXPECT_EQ(expectedConfig.sampleRateHz, sampleRateHz);
+    EXPECT_EQ(expectedConfig.channelMask, mask);
+    EXPECT_EQ(expectedConfig.format, format);
+}
+
+TEST_IO_STREAM(GetAudioProperties,
+               "Check that the stream audio properties == the ones it was opened with",
+               testGetAudioProperties(stream.get(), audioConfig))
+
+TEST_IO_STREAM(SetHwAvSync, "Try to set hardware sync to an invalid value",
+               ASSERT_RESULT(okOrNotSupportedOrInvalidArgs, stream->setHwAvSync(666)))
+
+static void checkGetNoParameter(IStream* stream, hidl_vec<hidl_string> keys,
+                                initializer_list<Result> expectedResults) {
+    hidl_vec<ParameterValue> parameters;
+    Result res;
+    ASSERT_OK(Parameters::get(stream, keys, returnIn(res, parameters)));
+    ASSERT_RESULT(expectedResults, res);
+    if (res == Result::OK) {
+        for (auto& parameter : parameters) {
+            ASSERT_EQ(0U, parameter.value.size()) << toString(parameter);
+        }
+    }
+}
+
+/* Get/Set parameter is intended to be an opaque channel between vendors app and
+ * their HALs.
+ * Thus can not be meaningfully tested.
+ */
+TEST_IO_STREAM(getEmptySetParameter, "Retrieve the values of an empty set",
+               checkGetNoParameter(stream.get(), {} /* keys */, {Result::OK}))
+
+TEST_IO_STREAM(getNonExistingParameter, "Retrieve the values of an non existing parameter",
+               checkGetNoParameter(stream.get(), {"Non existing key"} /* keys */,
+                                   {Result::NOT_SUPPORTED}))
+
+TEST_IO_STREAM(setEmptySetParameter, "Set the values of an empty set of parameters",
+               ASSERT_RESULT(Result::OK, Parameters::set(stream, {})))
+
+TEST_IO_STREAM(setNonExistingParameter, "Set the values of an non existing parameter",
+               // Unfortunately, the set_parameter legacy interface did not return any
+               // error code when a key is not supported.
+               // To allow implementation to just wrapped the legacy one, consider OK as a
+               // valid result for setting a non existing parameter.
+               ASSERT_RESULT(okOrNotSupportedOrInvalidArgs,
+                             Parameters::set(stream, {{"non existing key", "0"}})))
+
+TEST_IO_STREAM(DebugDump, "Check that a stream can dump its state without error",
+               testDebugDump([this](const auto& handle) { return dump(stream, handle); }))
+
+TEST_IO_STREAM(DebugDumpInvalidArguments,
+               "Check that the stream dump doesn't crash on invalid arguments",
+               ASSERT_OK(dump(stream, hidl_handle())))
+
+//////////////////////////////////////////////////////////////////////////////
+////////////////////////////// addRemoveEffect ///////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_IO_STREAM(AddNonExistingEffect, "Adding a non existing effect should fail",
+               ASSERT_RESULT(Result::INVALID_ARGUMENTS, stream->addEffect(666)))
+TEST_IO_STREAM(RemoveNonExistingEffect, "Removing a non existing effect should fail",
+               ASSERT_RESULT(Result::INVALID_ARGUMENTS, stream->removeEffect(666)))
+
+// TODO: positive tests
+
+//////////////////////////////////////////////////////////////////////////////
+/////////////////////////////// Control ////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_IO_STREAM(standby, "Make sure the stream can be put in stanby",
+               ASSERT_OK(stream->standby()))  // can not fail
+
+TEST_IO_STREAM(startNoMmap, "Starting a mmaped stream before mapping it should fail",
+               ASSERT_RESULT(invalidStateOrNotSupported, stream->start()))
+
+TEST_IO_STREAM(stopNoMmap, "Stopping a mmaped stream before mapping it should fail",
+               ASSERT_RESULT(invalidStateOrNotSupported, stream->stop()))
+
+TEST_IO_STREAM(getMmapPositionNoMmap, "Get a stream Mmap position before mapping it should fail",
+               ASSERT_RESULT(invalidStateOrNotSupported, stream->stop()))
+
+TEST_IO_STREAM(close, "Make sure a stream can be closed", ASSERT_OK(closeStream()))
+TEST_IO_STREAM(closeTwice, "Make sure a stream can not be closed twice", ASSERT_OK(closeStream());
+               ASSERT_RESULT(Result::INVALID_STATE, closeStream()))
+
+static void testCreateTooBigMmapBuffer(IStream* stream) {
+    MmapBufferInfo info;
+    Result res;
+    // Assume that int max is a value too big to be allocated
+    // This is true currently with a 32bit media server, but might not when it
+    // will run in 64 bit
+    auto minSizeFrames = std::numeric_limits<int32_t>::max();
+    ASSERT_OK(stream->createMmapBuffer(minSizeFrames, returnIn(res, info)));
+    ASSERT_RESULT(invalidArgsOrNotSupported, res);
+}
+
+TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer too big should fail",
+               testCreateTooBigMmapBuffer(stream.get()))
+
+static void testGetMmapPositionOfNonMmapedStream(IStream* stream) {
+    Result res;
+    MmapPosition position;
+    ASSERT_OK(stream->getMmapPosition(returnIn(res, position)));
+    ASSERT_RESULT(invalidArgsOrNotSupported, res);
+}
+
+TEST_IO_STREAM(GetMmapPositionOfNonMmapedStream,
+               "Retrieving the mmap position of a non mmaped stream should fail",
+               testGetMmapPositionOfNonMmapedStream(stream.get()))
+
+//////////////////////////////////////////////////////////////////////////////
+///////////////////////////////// StreamIn ///////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_P(InputStreamTest, GetAudioSource) {
+    doc::test("Retrieving the audio source of an input stream should always succeed");
+    AudioSource source;
+    ASSERT_OK(stream->getAudioSource(returnIn(res, source)));
+    if (res == Result::NOT_SUPPORTED) {
+        doc::partialTest("getAudioSource is not supported");
+        return;
+    }
+    ASSERT_OK(res);
+    ASSERT_EQ(AudioSource::DEFAULT, source);
+}
+
+static void testUnitaryGain(std::function<Return<Result>(float)> setGain) {
+    for (float value : (float[]){-INFINITY, -1.0, 1.0 + std::numeric_limits<float>::epsilon(), 2.0,
+                                 INFINITY, NAN}) {
+        EXPECT_RESULT(Result::INVALID_ARGUMENTS, setGain(value)) << "value=" << value;
+    }
+    // Do not consider -0.0 as an invalid value as it is == with 0.0
+    for (float value : {-0.0, 0.0, 0.01, 0.5, 0.09, 1.0 /* Restore volume*/}) {
+        EXPECT_OK(setGain(value)) << "value=" << value;
+    }
+}
+
+static void testOptionalUnitaryGain(std::function<Return<Result>(float)> setGain,
+                                    string debugName) {
+    auto result = setGain(1);
+    ASSERT_IS_OK(result);
+    if (result == Result::NOT_SUPPORTED) {
+        doc::partialTest(debugName + " is not supported");
+        return;
+    }
+    testUnitaryGain(setGain);
+}
+
+TEST_P(InputStreamTest, SetGain) {
+    doc::test("The gain of an input stream should only be set between [0,1]");
+    testOptionalUnitaryGain([this](float volume) { return stream->setGain(volume); },
+                            "InputStream::setGain");
+}
+
+static void testPrepareForReading(IStreamIn* stream, uint32_t frameSize, uint32_t framesCount) {
+    Result res;
+    // Ignore output parameters as the call should fail
+    ASSERT_OK(stream->prepareForReading(frameSize, framesCount,
+                                        [&res](auto r, auto&, auto&, auto&, auto&) { res = r; }));
+    EXPECT_RESULT(Result::INVALID_ARGUMENTS, res);
+}
+
+TEST_P(InputStreamTest, PrepareForReadingWithZeroBuffer) {
+    doc::test("Preparing a stream for reading with a 0 sized buffer should fail");
+    testPrepareForReading(stream.get(), 0, 0);
+}
+
+TEST_P(InputStreamTest, PrepareForReadingWithHugeBuffer) {
+    doc::test("Preparing a stream for reading with a 2^32 sized buffer should fail");
+    testPrepareForReading(stream.get(), 1, std::numeric_limits<uint32_t>::max());
+}
+
+TEST_P(InputStreamTest, PrepareForReadingCheckOverflow) {
+    doc::test(
+        "Preparing a stream for reading with a overflowing sized buffer should "
+        "fail");
+    auto uintMax = std::numeric_limits<uint32_t>::max();
+    testPrepareForReading(stream.get(), uintMax, uintMax);
+}
+
+TEST_P(InputStreamTest, GetInputFramesLost) {
+    doc::test("The number of frames lost on a never started stream should be 0");
+    auto ret = stream->getInputFramesLost();
+    ASSERT_IS_OK(ret);
+    uint32_t framesLost{ret};
+    ASSERT_EQ(0U, framesLost);
+}
+
+TEST_P(InputStreamTest, getCapturePosition) {
+    doc::test(
+        "The capture position of a non prepared stream should not be "
+        "retrievable or 0");
+    uint64_t frames;
+    uint64_t time;
+    ASSERT_OK(stream->getCapturePosition(returnIn(res, frames, time)));
+    ASSERT_RESULT(okOrInvalidStateOrNotSupported, res);
+    if (res == Result::OK) {
+        ASSERT_EQ(0U, frames);
+        ASSERT_LE(0U, time);
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+///////////////////////////////// StreamOut //////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_P(OutputStreamTest, getLatency) {
+    doc::test("Make sure latency is over 0");
+    auto result = stream->getLatency();
+    ASSERT_IS_OK(result);
+    ASSERT_GT(result, 0U);
+}
+
+TEST_P(OutputStreamTest, setVolume) {
+    doc::test("Try to set the output volume");
+    testOptionalUnitaryGain([this](float volume) { return stream->setVolume(volume, volume); },
+                            "setVolume");
+}
+
+static void testPrepareForWriting(IStreamOut* stream, uint32_t frameSize, uint32_t framesCount) {
+    Result res;
+    // Ignore output parameters as the call should fail
+    ASSERT_OK(stream->prepareForWriting(frameSize, framesCount,
+                                        [&res](auto r, auto&, auto&, auto&, auto&) { res = r; }));
+    EXPECT_RESULT(Result::INVALID_ARGUMENTS, res);
+}
+
+TEST_P(OutputStreamTest, PrepareForWriteWithZeroBuffer) {
+    doc::test("Preparing a stream for writing with a 0 sized buffer should fail");
+    testPrepareForWriting(stream.get(), 0, 0);
+}
+
+TEST_P(OutputStreamTest, PrepareForWriteWithHugeBuffer) {
+    doc::test("Preparing a stream for writing with a 2^32 sized buffer should fail");
+    testPrepareForWriting(stream.get(), 1, std::numeric_limits<uint32_t>::max());
+}
+
+TEST_P(OutputStreamTest, PrepareForWritingCheckOverflow) {
+    doc::test(
+        "Preparing a stream for writing with a overflowing sized buffer should "
+        "fail");
+    auto uintMax = std::numeric_limits<uint32_t>::max();
+    testPrepareForWriting(stream.get(), uintMax, uintMax);
+}
+
+struct Capability {
+    Capability(IStreamOut* stream) {
+        EXPECT_OK(stream->supportsPauseAndResume(returnIn(pause, resume)));
+        auto ret = stream->supportsDrain();
+        EXPECT_IS_OK(ret);
+        if (ret.isOk()) {
+            drain = ret;
+        }
+    }
+    bool pause = false;
+    bool resume = false;
+    bool drain = false;
+};
+
+TEST_P(OutputStreamTest, SupportsPauseAndResumeAndDrain) {
+    doc::test("Implementation must expose pause, resume and drain capabilities");
+    Capability(stream.get());
+}
+
+template <class Value>
+static void checkInvalidStateOr0(Result res, Value value) {
+    switch (res) {
+        case Result::INVALID_STATE:
+            break;
+        case Result::OK:
+            ASSERT_EQ(0U, value);
+            break;
+        default:
+            FAIL() << "Unexpected result " << toString(res);
+    }
+}
+
+TEST_P(OutputStreamTest, GetRenderPosition) {
+    doc::test("A new stream render position should be 0 or INVALID_STATE");
+    uint32_t dspFrames;
+    ASSERT_OK(stream->getRenderPosition(returnIn(res, dspFrames)));
+    if (res == Result::NOT_SUPPORTED) {
+        doc::partialTest("getRenderPosition is not supported");
+        return;
+    }
+    checkInvalidStateOr0(res, dspFrames);
+}
+
+TEST_P(OutputStreamTest, GetNextWriteTimestamp) {
+    doc::test("A new stream next write timestamp should be 0 or INVALID_STATE");
+    uint64_t timestampUs;
+    ASSERT_OK(stream->getNextWriteTimestamp(returnIn(res, timestampUs)));
+    if (res == Result::NOT_SUPPORTED) {
+        doc::partialTest("getNextWriteTimestamp is not supported");
+        return;
+    }
+    checkInvalidStateOr0(res, timestampUs);
+}
+
+/** Stub implementation of out stream callback. */
+class MockOutCallbacks : public IStreamOutCallback {
+    Return<void> onWriteReady() override { return {}; }
+    Return<void> onDrainReady() override { return {}; }
+    Return<void> onError() override { return {}; }
+};
+
+static bool isAsyncModeSupported(IStreamOut* stream) {
+    auto res = stream->setCallback(new MockOutCallbacks);
+    stream->clearCallback();  // try to restore the no callback state, ignore
+                              // any error
+    EXPECT_RESULT(okOrNotSupported, res);
+    return res.isOk() ? res == Result::OK : false;
+}
+
+TEST_P(OutputStreamTest, SetCallback) {
+    doc::test(
+        "If supported, registering callback for async operation should never "
+        "fail");
+    if (!isAsyncModeSupported(stream.get())) {
+        doc::partialTest("The stream does not support async operations");
+        return;
+    }
+    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
+    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
+}
+
+TEST_P(OutputStreamTest, clearCallback) {
+    doc::test(
+        "If supported, clearing a callback to go back to sync operation should "
+        "not fail");
+    if (!isAsyncModeSupported(stream.get())) {
+        doc::partialTest("The stream does not support async operations");
+        return;
+    }
+    // TODO: Clarify if clearing a non existing callback should fail
+    ASSERT_OK(stream->setCallback(new MockOutCallbacks));
+    ASSERT_OK(stream->clearCallback());
+}
+
+TEST_P(OutputStreamTest, Resume) {
+    doc::test(
+        "If supported, a stream should fail to resume if not previously "
+        "paused");
+    if (!Capability(stream.get()).resume) {
+        doc::partialTest("The output stream does not support resume");
+        return;
+    }
+    ASSERT_RESULT(Result::INVALID_STATE, stream->resume());
+}
+
+TEST_P(OutputStreamTest, Pause) {
+    doc::test(
+        "If supported, a stream should fail to pause if not previously "
+        "started");
+    if (!Capability(stream.get()).pause) {
+        doc::partialTest("The output stream does not support pause");
+        return;
+    }
+    ASSERT_RESULT(Result::INVALID_STATE, stream->pause());
+}
+
+static void testDrain(IStreamOut* stream, AudioDrain type) {
+    if (!Capability(stream).drain) {
+        doc::partialTest("The output stream does not support drain");
+        return;
+    }
+    ASSERT_RESULT(Result::OK, stream->drain(type));
+}
+
+TEST_P(OutputStreamTest, DrainAll) {
+    doc::test("If supported, a stream should always succeed to drain");
+    testDrain(stream.get(), AudioDrain::ALL);
+}
+
+TEST_P(OutputStreamTest, DrainEarlyNotify) {
+    doc::test("If supported, a stream should always succeed to drain");
+    testDrain(stream.get(), AudioDrain::EARLY_NOTIFY);
+}
+
+TEST_P(OutputStreamTest, FlushStop) {
+    doc::test("If supported, a stream should always succeed to flush");
+    auto ret = stream->flush();
+    ASSERT_IS_OK(ret);
+    if (ret == Result::NOT_SUPPORTED) {
+        doc::partialTest("Flush is not supported");
+        return;
+    }
+    ASSERT_OK(ret);
+}
+
+TEST_P(OutputStreamTest, GetPresentationPositionStop) {
+    doc::test(
+        "If supported, a stream should always succeed to retrieve the "
+        "presentation position");
+    uint64_t frames;
+    TimeSpec mesureTS;
+    ASSERT_OK(stream->getPresentationPosition(returnIn(res, frames, mesureTS)));
+    if (res == Result::NOT_SUPPORTED) {
+        doc::partialTest("getpresentationPosition is not supported");
+        return;
+    }
+    ASSERT_EQ(0U, frames);
+
+    if (mesureTS.tvNSec == 0 && mesureTS.tvSec == 0) {
+        // As the stream has never written a frame yet,
+        // the timestamp does not really have a meaning, allow to return 0
+        return;
+    }
+
+    // Make sure the return measure is not more than 1s old.
+    struct timespec currentTS;
+    ASSERT_EQ(0, clock_gettime(CLOCK_MONOTONIC, &currentTS)) << errno;
+
+    auto toMicroSec = [](uint64_t sec, auto nsec) { return sec * 1e+6 + nsec / 1e+3; };
+    auto currentTime = toMicroSec(currentTS.tv_sec, currentTS.tv_nsec);
+    auto mesureTime = toMicroSec(mesureTS.tvSec, mesureTS.tvNSec);
+    ASSERT_PRED2([](auto c, auto m) { return c - m < 1e+6; }, currentTime, mesureTime);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+/////////////////////////////// PrimaryDevice ////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_F(AudioPrimaryHidlTest, setVoiceVolume) {
+    doc::test("Make sure setVoiceVolume only succeed if volume is in [0,1]");
+    testUnitaryGain([](float volume) { return device->setVoiceVolume(volume); });
+}
+
+TEST_F(BoolAccessorPrimaryHidlTest, BtScoNrecEnabled) {
+    doc::test("Query and set the BT SCO NR&EC state");
+    testAccessors<OPTIONAL>("BtScoNrecEnabled", Initial{false, OPTIONAL}, {true},
+                            &IPrimaryDevice::setBtScoNrecEnabled,
+                            &IPrimaryDevice::getBtScoNrecEnabled);
+}
+
+TEST_F(BoolAccessorPrimaryHidlTest, setGetBtScoWidebandEnabled) {
+    doc::test("Query and set the SCO whideband state");
+    testAccessors<OPTIONAL>("BtScoWideband", Initial{false, OPTIONAL}, {true},
+                            &IPrimaryDevice::setBtScoWidebandEnabled,
+                            &IPrimaryDevice::getBtScoWidebandEnabled);
+}
+
+using TtyModeAccessorPrimaryHidlTest = AccessorPrimaryHidlTest<IPrimaryDevice::TtyMode>;
+TEST_F(TtyModeAccessorPrimaryHidlTest, setGetTtyMode) {
+    doc::test("Query and set the TTY mode state");
+    testAccessors<OPTIONAL>(
+        "TTY mode", Initial{IPrimaryDevice::TtyMode::OFF},
+        {IPrimaryDevice::TtyMode::HCO, IPrimaryDevice::TtyMode::VCO, IPrimaryDevice::TtyMode::FULL},
+        &IPrimaryDevice::setTtyMode, &IPrimaryDevice::getTtyMode);
+}
+
+TEST_F(BoolAccessorPrimaryHidlTest, setGetHac) {
+    doc::test("Query and set the HAC state");
+    testAccessors<OPTIONAL>("HAC", Initial{false}, {true}, &IPrimaryDevice::setHacEnabled,
+                            &IPrimaryDevice::getHacEnabled);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////// Clean caches on global tear down ////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+int main(int argc, char** argv) {
+    environment = new AudioHidlTestEnvironment;
+    ::testing::AddGlobalTestEnvironment(environment);
+    ::testing::InitGoogleTest(&argc, argv);
+    environment->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    return status;
+}
diff --git a/audio/effect/2.0/default/AcousticEchoCancelerEffect.cpp b/audio/effect/2.0/default/AcousticEchoCancelerEffect.cpp
deleted file mode 100644
index cadc2f1..0000000
--- a/audio/effect/2.0/default/AcousticEchoCancelerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AEC_Effect_HAL"
-
-#include "AcousticEchoCancelerEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/AcousticEchoCancelerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/AcousticEchoCancelerEffect.h b/audio/effect/2.0/default/AcousticEchoCancelerEffect.h
deleted file mode 100644
index d36335c..0000000
--- a/audio/effect/2.0/default/AcousticEchoCancelerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ACOUSTICECHOCANCELEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ACOUSTICECHOCANCELEREFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IAcousticEchoCancelerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/AcousticEchoCancelerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ACOUSTICECHOCANCELEREFFECT_H
diff --git a/audio/effect/2.0/default/Android.bp b/audio/effect/2.0/default/Android.bp
deleted file mode 100644
index db00988..0000000
--- a/audio/effect/2.0/default/Android.bp
+++ /dev/null
@@ -1,50 +0,0 @@
-cc_library_shared {
-    name: "android.hardware.audio.effect@2.0-impl",
-    defaults: ["hidl_defaults"],
-    vendor: true,
-    relative_install_path: "hw",
-    srcs: [
-        "AcousticEchoCancelerEffect.cpp",
-        "AudioBufferManager.cpp",
-        "AutomaticGainControlEffect.cpp",
-        "BassBoostEffect.cpp",
-        "Conversions.cpp",
-        "DownmixEffect.cpp",
-        "Effect.cpp",
-        "EffectsFactory.cpp",
-        "EnvironmentalReverbEffect.cpp",
-        "EqualizerEffect.cpp",
-        "LoudnessEnhancerEffect.cpp",
-        "NoiseSuppressionEffect.cpp",
-        "PresetReverbEffect.cpp",
-        "VirtualizerEffect.cpp",
-        "VisualizerEffect.cpp",
-    ],
-
-    shared_libs: [
-        "libbase",
-        "libcutils",
-        "libeffects",
-        "libfmq",
-        "libhidlbase",
-        "libhidlmemory",
-        "libhidltransport",
-        "liblog",
-        "libutils",
-        "android.hardware.audio.common-util",
-        "android.hardware.audio.common@2.0",
-        "android.hardware.audio.common@2.0-util",
-        "android.hardware.audio.effect@2.0",
-        "android.hidl.memory@1.0",
-    ],
-
-    header_libs: [
-        "android.hardware.audio.common.util@all-versions",
-        "android.hardware.audio.effect@all-versions-impl",
-        "libaudio_system_headers",
-        "libaudioclient_headers",
-        "libeffects_headers",
-        "libhardware_headers",
-        "libmedia_headers",
-    ],
-}
diff --git a/audio/effect/2.0/default/AudioBufferManager.cpp b/audio/effect/2.0/default/AudioBufferManager.cpp
deleted file mode 100644
index 39918dd..0000000
--- a/audio/effect/2.0/default/AudioBufferManager.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "AudioBufferManager.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/AudioBufferManager.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/AudioBufferManager.h b/audio/effect/2.0/default/AudioBufferManager.h
deleted file mode 100644
index 789fbd1..0000000
--- a/audio/effect/2.0/default/AudioBufferManager.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUDIO_BUFFER_MANAGER_H_
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUDIO_BUFFER_MANAGER_H_
-
-#include <android/hardware/audio/effect/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/AudioBufferManager.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUDIO_BUFFER_MANAGER_H_
diff --git a/audio/effect/2.0/default/AutomaticGainControlEffect.cpp b/audio/effect/2.0/default/AutomaticGainControlEffect.cpp
deleted file mode 100644
index 7e00a80..0000000
--- a/audio/effect/2.0/default/AutomaticGainControlEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AGC_Effect_HAL"
-
-#include "AutomaticGainControlEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/AutomaticGainControlEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/AutomaticGainControlEffect.h b/audio/effect/2.0/default/AutomaticGainControlEffect.h
deleted file mode 100644
index ef440d2..0000000
--- a/audio/effect/2.0/default/AutomaticGainControlEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUTOMATICGAINCONTROLEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUTOMATICGAINCONTROLEFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IAutomaticGainControlEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/AutomaticGainControlEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUTOMATICGAINCONTROLEFFECT_H
diff --git a/audio/effect/2.0/default/BassBoostEffect.cpp b/audio/effect/2.0/default/BassBoostEffect.cpp
deleted file mode 100644
index df9e892..0000000
--- a/audio/effect/2.0/default/BassBoostEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BassBoost_HAL"
-
-#include "BassBoostEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/BassBoostEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/BassBoostEffect.h b/audio/effect/2.0/default/BassBoostEffect.h
deleted file mode 100644
index 83179e2..0000000
--- a/audio/effect/2.0/default/BassBoostEffect.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_BASSBOOSTEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_BASSBOOSTEFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IBassBoostEffect.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/BassBoostEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_BASSBOOSTEFFECT_H
diff --git a/audio/effect/2.0/default/Conversions.cpp b/audio/effect/2.0/default/Conversions.cpp
deleted file mode 100644
index b59752c..0000000
--- a/audio/effect/2.0/default/Conversions.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Conversions.h"
-#include "HidlUtils.h"
-
-using ::android::hardware::audio::common::V2_0::HidlUtils;
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/Conversions.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/Conversions.h b/audio/effect/2.0/default/Conversions.h
deleted file mode 100644
index 94c7f66..0000000
--- a/audio/effect/2.0/default/Conversions.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_CONVERSIONS_H_
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_CONVERSIONS_H_
-
-#include <android/hardware/audio/effect/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/Conversions.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_CONVERSIONS_H_
diff --git a/audio/effect/2.0/default/DownmixEffect.cpp b/audio/effect/2.0/default/DownmixEffect.cpp
deleted file mode 100644
index 1a51e13..0000000
--- a/audio/effect/2.0/default/DownmixEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Downmix_HAL"
-
-#include "DownmixEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/DownmixEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/DownmixEffect.h b/audio/effect/2.0/default/DownmixEffect.h
deleted file mode 100644
index 6dbbb32..0000000
--- a/audio/effect/2.0/default/DownmixEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_DOWNMIXEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_DOWNMIXEFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IDownmixEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/DownmixEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_DOWNMIXEFFECT_H
diff --git a/audio/effect/2.0/default/Effect.cpp b/audio/effect/2.0/default/Effect.cpp
deleted file mode 100644
index e234e52..0000000
--- a/audio/effect/2.0/default/Effect.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <memory.h>
-
-#define LOG_TAG "EffectHAL"
-#define ATRACE_TAG ATRACE_TAG_AUDIO
-
-#include "Conversions.h"
-#include "Effect.h"
-#include "common/all-versions/default/EffectMap.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/Effect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/Effect.h b/audio/effect/2.0/default/Effect.h
deleted file mode 100644
index a4d194d..0000000
--- a/audio/effect/2.0/default/Effect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IEffect.h>
-
-#include "AudioBufferManager.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/Effect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECT_H
diff --git a/audio/effect/2.0/default/EffectsFactory.cpp b/audio/effect/2.0/default/EffectsFactory.cpp
deleted file mode 100644
index a48a85f..0000000
--- a/audio/effect/2.0/default/EffectsFactory.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "EffectFactoryHAL"
-#include "EffectsFactory.h"
-#include "AcousticEchoCancelerEffect.h"
-#include "AutomaticGainControlEffect.h"
-#include "BassBoostEffect.h"
-#include "Conversions.h"
-#include "DownmixEffect.h"
-#include "Effect.h"
-#include "EnvironmentalReverbEffect.h"
-#include "EqualizerEffect.h"
-#include "HidlUtils.h"
-#include "LoudnessEnhancerEffect.h"
-#include "NoiseSuppressionEffect.h"
-#include "PresetReverbEffect.h"
-#include "VirtualizerEffect.h"
-#include "VisualizerEffect.h"
-#include "common/all-versions/default/EffectMap.h"
-
-using ::android::hardware::audio::common::V2_0::HidlUtils;
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/EffectsFactory.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/EffectsFactory.h b/audio/effect/2.0/default/EffectsFactory.h
deleted file mode 100644
index f1bfbcf..0000000
--- a/audio/effect/2.0/default/EffectsFactory.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECTSFACTORY_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECTSFACTORY_H
-
-#include <system/audio_effect.h>
-
-#include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
-
-#include <hidl/MQDescriptor.h>
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/EffectsFactory.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECTSFACTORY_H
diff --git a/audio/effect/2.0/default/EnvironmentalReverbEffect.cpp b/audio/effect/2.0/default/EnvironmentalReverbEffect.cpp
deleted file mode 100644
index 017dd1f..0000000
--- a/audio/effect/2.0/default/EnvironmentalReverbEffect.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "EnvReverb_HAL"
-#include <android/log.h>
-
-#include "EnvironmentalReverbEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/EnvironmentalReverbEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/EnvironmentalReverbEffect.h b/audio/effect/2.0/default/EnvironmentalReverbEffect.h
deleted file mode 100644
index d93a53f..0000000
--- a/audio/effect/2.0/default/EnvironmentalReverbEffect.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ENVIRONMENTALREVERBEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ENVIRONMENTALREVERBEFFECT_H
-
-#include <system/audio_effects/effect_environmentalreverb.h>
-
-#include <android/hardware/audio/effect/2.0/IEnvironmentalReverbEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/EnvironmentalReverbEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ENVIRONMENTALREVERBEFFECT_H
diff --git a/audio/effect/2.0/default/EqualizerEffect.cpp b/audio/effect/2.0/default/EqualizerEffect.cpp
deleted file mode 100644
index d6e056c..0000000
--- a/audio/effect/2.0/default/EqualizerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Equalizer_HAL"
-
-#include "EqualizerEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/EqualizerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/EqualizerEffect.h b/audio/effect/2.0/default/EqualizerEffect.h
deleted file mode 100644
index 54cdd50..0000000
--- a/audio/effect/2.0/default/EqualizerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EQUALIZEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EQUALIZEREFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IEqualizerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/EqualizerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EQUALIZEREFFECT_H
diff --git a/audio/effect/2.0/default/LoudnessEnhancerEffect.cpp b/audio/effect/2.0/default/LoudnessEnhancerEffect.cpp
deleted file mode 100644
index 2dca0f4..0000000
--- a/audio/effect/2.0/default/LoudnessEnhancerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "LoudnessEnhancer_HAL"
-
-#include "LoudnessEnhancerEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/LoudnessEnhancerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/LoudnessEnhancerEffect.h b/audio/effect/2.0/default/LoudnessEnhancerEffect.h
deleted file mode 100644
index 992e238..0000000
--- a/audio/effect/2.0/default/LoudnessEnhancerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_LOUDNESSENHANCEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_LOUDNESSENHANCEREFFECT_H
-
-#include <android/hardware/audio/effect/2.0/ILoudnessEnhancerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/LoudnessEnhancerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_LOUDNESSENHANCEREFFECT_H
diff --git a/audio/effect/2.0/default/NoiseSuppressionEffect.cpp b/audio/effect/2.0/default/NoiseSuppressionEffect.cpp
deleted file mode 100644
index 089e811..0000000
--- a/audio/effect/2.0/default/NoiseSuppressionEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "NS_Effect_HAL"
-
-#include "NoiseSuppressionEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/NoiseSuppressionEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/NoiseSuppressionEffect.h b/audio/effect/2.0/default/NoiseSuppressionEffect.h
deleted file mode 100644
index 0eee4b5..0000000
--- a/audio/effect/2.0/default/NoiseSuppressionEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_NOISESUPPRESSIONEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_NOISESUPPRESSIONEFFECT_H
-
-#include <android/hardware/audio/effect/2.0/INoiseSuppressionEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/NoiseSuppressionEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_NOISESUPPRESSIONEFFECT_H
diff --git a/audio/effect/2.0/default/OWNERS b/audio/effect/2.0/default/OWNERS
deleted file mode 100644
index 6fdc97c..0000000
--- a/audio/effect/2.0/default/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
diff --git a/audio/effect/2.0/default/PresetReverbEffect.cpp b/audio/effect/2.0/default/PresetReverbEffect.cpp
deleted file mode 100644
index 0648f6a..0000000
--- a/audio/effect/2.0/default/PresetReverbEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "PresetReverb_HAL"
-
-#include "PresetReverbEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/PresetReverbEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/PresetReverbEffect.h b/audio/effect/2.0/default/PresetReverbEffect.h
deleted file mode 100644
index 1ea1626..0000000
--- a/audio/effect/2.0/default/PresetReverbEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_PRESETREVERBEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_PRESETREVERBEFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IPresetReverbEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/PresetReverbEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_PRESETREVERBEFFECT_H
diff --git a/audio/effect/2.0/default/VirtualizerEffect.cpp b/audio/effect/2.0/default/VirtualizerEffect.cpp
deleted file mode 100644
index 63d3eb9..0000000
--- a/audio/effect/2.0/default/VirtualizerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Virtualizer_HAL"
-
-#include "VirtualizerEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/VirtualizerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/VirtualizerEffect.h b/audio/effect/2.0/default/VirtualizerEffect.h
deleted file mode 100644
index 04f93c4..0000000
--- a/audio/effect/2.0/default/VirtualizerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VIRTUALIZEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VIRTUALIZEREFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IVirtualizerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/VirtualizerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VIRTUALIZEREFFECT_H
diff --git a/audio/effect/2.0/default/VisualizerEffect.cpp b/audio/effect/2.0/default/VisualizerEffect.cpp
deleted file mode 100644
index 5235524..0000000
--- a/audio/effect/2.0/default/VisualizerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Visualizer_HAL"
-
-#include "VisualizerEffect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/VisualizerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/2.0/default/VisualizerEffect.h b/audio/effect/2.0/default/VisualizerEffect.h
deleted file mode 100644
index 940f15d..0000000
--- a/audio/effect/2.0/default/VisualizerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VISUALIZEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VISUALIZEREFFECT_H
-
-#include <android/hardware/audio/effect/2.0/IVisualizerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V2_0
-#include <effect/all-versions/default/VisualizerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VISUALIZEREFFECT_H
diff --git a/audio/effect/2.0/vts/OWNERS b/audio/effect/2.0/vts/OWNERS
deleted file mode 100644
index 8711a9f..0000000
--- a/audio/effect/2.0/vts/OWNERS
+++ /dev/null
@@ -1,5 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
-yim@google.com
-zhuoyao@google.com
\ No newline at end of file
diff --git a/audio/effect/2.0/vts/functional/Android.bp b/audio/effect/2.0/vts/functional/Android.bp
deleted file mode 100644
index 5788720..0000000
--- a/audio/effect/2.0/vts/functional/Android.bp
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright (C) 2016 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-cc_test {
-    name: "VtsHalAudioEffectV2_0TargetTest",
-    defaults: ["VtsHalTargetTestDefaults"],
-    srcs: [
-        "VtsHalAudioEffectV2_0TargetTest.cpp",
-        "ValidateAudioEffectsConfiguration.cpp"
-    ],
-    static_libs: [
-        "android.hardware.audio.common.test.utility",
-        "android.hardware.audio.common@2.0",
-        "android.hardware.audio.effect@2.0",
-        "android.hidl.allocator@1.0",
-        "android.hidl.memory@1.0",
-        "libeffectsconfig",
-        "libxml2",
-    ],
-    test_suites: ["general-tests"],
-}
diff --git a/audio/effect/2.0/vts/functional/ValidateAudioEffectsConfiguration.cpp b/audio/effect/2.0/vts/functional/ValidateAudioEffectsConfiguration.cpp
deleted file mode 100644
index bf080d3..0000000
--- a/audio/effect/2.0/vts/functional/ValidateAudioEffectsConfiguration.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <unistd.h>
-#include <iterator>
-
-#include <media/EffectsConfig.h>
-
-#include "utility/ValidateXml.h"
-
-TEST(CheckConfig, audioEffectsConfigurationValidation) {
-    RecordProperty("description",
-                   "Verify that the effects configuration file is valid according to the schema");
-    using namespace android::effectsConfig;
-
-    std::vector<const char*> locations(std::begin(DEFAULT_LOCATIONS), std::end(DEFAULT_LOCATIONS));
-    EXPECT_VALID_XML_MULTIPLE_LOCATIONS(DEFAULT_NAME, locations,
-                                        "/data/local/tmp/audio_effects_conf_V2_0.xsd");
-}
diff --git a/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp b/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp
deleted file mode 100644
index c90c4fa..0000000
--- a/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp
+++ /dev/null
@@ -1,849 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioEffectHidlHalTest"
-#include <android-base/logging.h>
-#include <system/audio.h>
-
-#include <android/hardware/audio/effect/2.0/IEffect.h>
-#include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
-#include <android/hardware/audio/effect/2.0/IEqualizerEffect.h>
-#include <android/hardware/audio/effect/2.0/ILoudnessEnhancerEffect.h>
-#include <android/hardware/audio/effect/2.0/types.h>
-#include <android/hidl/allocator/1.0/IAllocator.h>
-#include <android/hidl/memory/1.0/IMemory.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
-
-using android::hardware::audio::common::V2_0::AudioDevice;
-using android::hardware::audio::common::V2_0::AudioHandleConsts;
-using android::hardware::audio::common::V2_0::AudioMode;
-using android::hardware::audio::common::V2_0::AudioSource;
-using android::hardware::audio::common::V2_0::Uuid;
-using android::hardware::audio::effect::V2_0::AudioBuffer;
-using android::hardware::audio::effect::V2_0::EffectAuxChannelsConfig;
-using android::hardware::audio::effect::V2_0::EffectBufferConfig;
-using android::hardware::audio::effect::V2_0::EffectConfig;
-using android::hardware::audio::effect::V2_0::EffectDescriptor;
-using android::hardware::audio::effect::V2_0::EffectOffloadParameter;
-using android::hardware::audio::effect::V2_0::IEffect;
-using android::hardware::audio::effect::V2_0::IEffectsFactory;
-using android::hardware::audio::effect::V2_0::IEqualizerEffect;
-using android::hardware::audio::effect::V2_0::ILoudnessEnhancerEffect;
-using android::hardware::audio::effect::V2_0::Result;
-using android::hardware::MQDescriptorSync;
-using android::hardware::Return;
-using android::hardware::Void;
-using android::hardware::hidl_handle;
-using android::hardware::hidl_memory;
-using android::hardware::hidl_string;
-using android::hardware::hidl_vec;
-using android::hidl::allocator::V1_0::IAllocator;
-using android::hidl::memory::V1_0::IMemory;
-using android::sp;
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
-#endif
-
-// Test environment for Audio Effects Factory HIDL HAL.
-class AudioEffectsFactoryHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static AudioEffectsFactoryHidlEnvironment* Instance() {
-        static AudioEffectsFactoryHidlEnvironment* instance =
-            new AudioEffectsFactoryHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IEffectsFactory>(); }
-};
-
-// The main test class for Audio Effects Factory HIDL HAL.
-class AudioEffectsFactoryHidlTest : public ::testing::VtsHalHidlTargetTestBase {
- public:
-  void SetUp() override {
-      effectsFactory = ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>(
-          AudioEffectsFactoryHidlEnvironment::Instance()->getServiceName<IEffectsFactory>());
-      ASSERT_NE(effectsFactory, nullptr);
-  }
-
-  void TearDown() override { effectsFactory.clear(); }
-
- protected:
-  static void description(const std::string& description) {
-    RecordProperty("description", description);
-  }
-
-  sp<IEffectsFactory> effectsFactory;
-};
-
-TEST_F(AudioEffectsFactoryHidlTest, EnumerateEffects) {
-  description("Verify that EnumerateEffects returns at least one effect");
-  Result retval = Result::NOT_INITIALIZED;
-  size_t effectCount = 0;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        retval = r;
-        effectCount = result.size();
-      });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_GT(effectCount, 0u);
-}
-
-TEST_F(AudioEffectsFactoryHidlTest, CreateEffect) {
-  description("Verify that an effect can be created via CreateEffect");
-  bool gotEffect = false;
-  Uuid effectUuid;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        if (r == Result::OK && result.size() > 0) {
-          gotEffect = true;
-          effectUuid = result[0].uuid;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_TRUE(gotEffect);
-  Result retval = Result::NOT_INITIALIZED;
-  sp<IEffect> effect;
-  ret = effectsFactory->createEffect(
-      effectUuid, 1 /*session*/, 1 /*ioHandle*/,
-      [&](Result r, const sp<IEffect>& result, uint64_t /*effectId*/) {
-        retval = r;
-        if (r == Result::OK) {
-          effect = result;
-        }
-      });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_NE(nullptr, effect.get());
-}
-
-TEST_F(AudioEffectsFactoryHidlTest, GetDescriptor) {
-  description(
-      "Verify that effects factory can provide an effect descriptor via "
-      "GetDescriptor");
-  hidl_vec<EffectDescriptor> allDescriptors;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        if (r == Result::OK) {
-          allDescriptors = result;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_GT(allDescriptors.size(), 0u);
-  for (size_t i = 0; i < allDescriptors.size(); ++i) {
-    ret = effectsFactory->getDescriptor(
-        allDescriptors[i].uuid, [&](Result r, const EffectDescriptor& result) {
-          EXPECT_EQ(r, Result::OK);
-          EXPECT_EQ(result, allDescriptors[i]);
-        });
-  }
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectsFactoryHidlTest, DebugDumpInvalidArgument) {
-    description("Verify that debugDump doesn't crash on invalid arguments");
-    Return<void> ret = effectsFactory->debugDump(hidl_handle());
-    ASSERT_TRUE(ret.isOk());
-}
-
-// Equalizer effect is required by CDD, but only the type is fixed.
-// This is the same UUID as AudioEffect.EFFECT_TYPE_EQUALIZER in Java.
-static const Uuid EQUALIZER_EFFECT_TYPE = {
-    0x0bed4300, 0xddd6, 0x11db, 0x8f34,
-    std::array<uint8_t, 6>{{0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}};
-// Loudness Enhancer effect is required by CDD, but only the type is fixed.
-// This is the same UUID as AudioEffect.EFFECT_TYPE_LOUDNESS_ENHANCER in Java.
-static const Uuid LOUDNESS_ENHANCER_EFFECT_TYPE = {
-    0xfe3199be, 0xaed0, 0x413f, 0x87bb,
-    std::array<uint8_t, 6>{{0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}}};
-
-// The main test class for Audio Effect HIDL HAL.
-class AudioEffectHidlTest : public ::testing::VtsHalHidlTargetTestBase {
- public:
-  void SetUp() override {
-    effectsFactory =
-        ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>();
-    ASSERT_NE(nullptr, effectsFactory.get());
-
-    findAndCreateEffect(getEffectType());
-    ASSERT_NE(nullptr, effect.get());
-
-    Return<Result> ret = effect->init();
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_EQ(Result::OK, ret);
-  }
-
-  void TearDown() override {
-    effect.clear();
-    effectsFactory.clear();
-  }
-
- protected:
-  static void description(const std::string& description) {
-    RecordProperty("description", description);
-  }
-
-  virtual Uuid getEffectType() { return EQUALIZER_EFFECT_TYPE; }
-
-  void findAndCreateEffect(const Uuid& type);
-  void findEffectInstance(const Uuid& type, Uuid* uuid);
-  void getChannelCount(uint32_t* channelCount);
-
-  sp<IEffectsFactory> effectsFactory;
-  sp<IEffect> effect;
-};
-
-void AudioEffectHidlTest::findAndCreateEffect(const Uuid& type) {
-  Uuid effectUuid;
-  findEffectInstance(type, &effectUuid);
-  Return<void> ret = effectsFactory->createEffect(
-      effectUuid, 1 /*session*/, 1 /*ioHandle*/,
-      [&](Result r, const sp<IEffect>& result, uint64_t /*effectId*/) {
-        if (r == Result::OK) {
-          effect = result;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-}
-
-void AudioEffectHidlTest::findEffectInstance(const Uuid& type, Uuid* uuid) {
-  bool effectFound = false;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        if (r == Result::OK) {
-          for (const auto& desc : result) {
-            if (desc.type == type) {
-              effectFound = true;
-              *uuid = desc.uuid;
-              break;
-            }
-          }
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_TRUE(effectFound);
-}
-
-void AudioEffectHidlTest::getChannelCount(uint32_t* channelCount) {
-  Result retval;
-  EffectConfig currentConfig;
-  Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      currentConfig = conf;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-  ASSERT_TRUE(audio_channel_mask_is_valid(
-      static_cast<audio_channel_mask_t>(currentConfig.outputCfg.channels)));
-  *channelCount = audio_channel_count_from_out_mask(
-      static_cast<audio_channel_mask_t>(currentConfig.outputCfg.channels));
-}
-
-TEST_F(AudioEffectHidlTest, Close) {
-  description("Verify that an effect can be closed");
-  Return<Result> ret = effect->close();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, GetDescriptor) {
-  description(
-      "Verify that an effect can return its own descriptor via GetDescriptor");
-  Result retval = Result::NOT_INITIALIZED;
-  Uuid actualType;
-  Return<void> ret =
-      effect->getDescriptor([&](Result r, const EffectDescriptor& desc) {
-        retval = r;
-        if (r == Result::OK) {
-          actualType = desc.type;
-        }
-      });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(getEffectType(), actualType);
-}
-
-TEST_F(AudioEffectHidlTest, GetSetConfig) {
-  description(
-      "Verify that it is possible to manipulate effect config via Get / "
-      "SetConfig");
-  Result retval = Result::NOT_INITIALIZED;
-  EffectConfig currentConfig;
-  Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      currentConfig = conf;
-    }
-  });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  Return<Result> ret2 = effect->setConfig(currentConfig, nullptr, nullptr);
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, ret2);
-}
-
-TEST_F(AudioEffectHidlTest, GetConfigReverse) {
-  description("Verify that GetConfigReverse does not crash");
-  Return<void> ret =
-      effect->getConfigReverse([&](Result, const EffectConfig&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetSupportedAuxChannelsConfigs) {
-  description("Verify that GetSupportedAuxChannelsConfigs does not crash");
-  Return<void> ret = effect->getSupportedAuxChannelsConfigs(
-      0, [&](Result, const hidl_vec<EffectAuxChannelsConfig>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetAuxChannelsConfig) {
-  description("Verify that GetAuxChannelsConfig does not crash");
-  Return<void> ret = effect->getAuxChannelsConfig(
-      [&](Result, const EffectAuxChannelsConfig&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetAuxChannelsConfig) {
-  description("Verify that SetAuxChannelsConfig does not crash");
-  Return<Result> ret = effect->setAuxChannelsConfig(EffectAuxChannelsConfig());
-  EXPECT_TRUE(ret.isOk());
-}
-
-// Not generated automatically because AudioBuffer contains
-// instances of hidl_memory which can't be compared properly
-// in general case due to presence of handles.
-//
-// However, in this particular case, handles must not present
-// thus comparison is possible.
-//
-// operator== must be defined in the same namespace as the structures.
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace V2_0 {
-inline bool operator==(const AudioBuffer& lhs, const AudioBuffer& rhs) {
-  return lhs.id == rhs.id && lhs.frameCount == rhs.frameCount &&
-         lhs.data.handle() == nullptr && rhs.data.handle() == nullptr;
-}
-
-inline bool operator==(const EffectBufferConfig& lhs,
-                       const EffectBufferConfig& rhs) {
-  return lhs.buffer == rhs.buffer && lhs.samplingRateHz == rhs.samplingRateHz &&
-         lhs.channels == rhs.channels && lhs.format == rhs.format &&
-         lhs.accessMode == rhs.accessMode && lhs.mask == rhs.mask;
-}
-
-inline bool operator==(const EffectConfig& lhs, const EffectConfig& rhs) {
-  return lhs.inputCfg == rhs.inputCfg && lhs.outputCfg == rhs.outputCfg;
-}
-}  // namespace V2_0
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-TEST_F(AudioEffectHidlTest, Reset) {
-  description("Verify that Reset preserves effect configuration");
-  Result retval = Result::NOT_INITIALIZED;
-  EffectConfig originalConfig;
-  Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      originalConfig = conf;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-  Return<Result> ret2 = effect->reset();
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, ret2);
-  EffectConfig configAfterReset;
-  ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      configAfterReset = conf;
-    }
-  });
-  EXPECT_EQ(originalConfig, configAfterReset);
-}
-
-TEST_F(AudioEffectHidlTest, DisableEnableDisable) {
-  description("Verify Disable -> Enable -> Disable sequence for an effect");
-  Return<Result> ret = effect->disable();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::INVALID_ARGUMENTS, ret);
-  ret = effect->enable();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  ret = effect->disable();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetDevice) {
-  description("Verify that SetDevice works for an output chain effect");
-  Return<Result> ret = effect->setDevice(AudioDevice::OUT_SPEAKER);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetAndGetVolume) {
-  description("Verify that SetAndGetVolume method works for an effect");
-  uint32_t channelCount;
-  getChannelCount(&channelCount);
-  hidl_vec<uint32_t> volumes;
-  volumes.resize(channelCount);
-  for (uint32_t i = 0; i < channelCount; ++i) {
-    volumes[i] = 0;
-  }
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = effect->setAndGetVolume(
-      volumes, [&](Result r, const hidl_vec<uint32_t>&) { retval = r; });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-}
-
-TEST_F(AudioEffectHidlTest, VolumeChangeNotification) {
-  description("Verify that effect accepts VolumeChangeNotification");
-  uint32_t channelCount;
-  getChannelCount(&channelCount);
-  hidl_vec<uint32_t> volumes;
-  volumes.resize(channelCount);
-  for (uint32_t i = 0; i < channelCount; ++i) {
-    volumes[i] = 0;
-  }
-  Return<Result> ret = effect->volumeChangeNotification(volumes);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetAudioMode) {
-  description("Verify that SetAudioMode works for an effect");
-  Return<Result> ret = effect->setAudioMode(AudioMode::NORMAL);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetConfigReverse) {
-  description("Verify that SetConfigReverse does not crash");
-  Return<Result> ret =
-      effect->setConfigReverse(EffectConfig(), nullptr, nullptr);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetInputDevice) {
-  description("Verify that SetInputDevice does not crash");
-  Return<Result> ret = effect->setInputDevice(AudioDevice::IN_BUILTIN_MIC);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetAudioSource) {
-  description("Verify that SetAudioSource does not crash");
-  Return<Result> ret = effect->setAudioSource(AudioSource::MIC);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, Offload) {
-  description("Verify that calling Offload method does not crash");
-  EffectOffloadParameter offloadParam;
-  offloadParam.isOffload = false;
-  offloadParam.ioHandle =
-      static_cast<int>(AudioHandleConsts::AUDIO_IO_HANDLE_NONE);
-  Return<Result> ret = effect->offload(offloadParam);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, PrepareForProcessing) {
-  description("Verify that PrepareForProcessing method works for an effect");
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = effect->prepareForProcessing(
-      [&](Result r, const MQDescriptorSync<Result>&) { retval = r; });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-}
-
-TEST_F(AudioEffectHidlTest, SetProcessBuffers) {
-  description("Verify that SetProcessBuffers works for an effect");
-  sp<IAllocator> ashmem = IAllocator::getService("ashmem");
-  ASSERT_NE(nullptr, ashmem.get());
-  bool success = false;
-  AudioBuffer buffer;
-  Return<void> ret =
-      ashmem->allocate(1024, [&](bool s, const hidl_memory& memory) {
-        success = s;
-        if (s) {
-          buffer.data = memory;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_TRUE(success);
-  Return<Result> ret2 = effect->setProcessBuffers(buffer, buffer);
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, ret2);
-}
-
-TEST_F(AudioEffectHidlTest, Command) {
-  description("Verify that Command does not crash");
-  Return<void> ret = effect->command(0, hidl_vec<uint8_t>(), 0,
-                                     [&](int32_t, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetParameter) {
-  description("Verify that SetParameter does not crash");
-  Return<Result> ret =
-      effect->setParameter(hidl_vec<uint8_t>(), hidl_vec<uint8_t>());
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetParameter) {
-  description("Verify that GetParameter does not crash");
-  Return<void> ret = effect->getParameter(
-      hidl_vec<uint8_t>(), 0, [&](Result, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetSupportedConfigsForFeature) {
-  description("Verify that GetSupportedConfigsForFeature does not crash");
-  Return<void> ret = effect->getSupportedConfigsForFeature(
-      0, 0, 0, [&](Result, uint32_t, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetCurrentConfigForFeature) {
-  description("Verify that GetCurrentConfigForFeature does not crash");
-  Return<void> ret = effect->getCurrentConfigForFeature(
-      0, 0, [&](Result, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetCurrentConfigForFeature) {
-  description("Verify that SetCurrentConfigForFeature does not crash");
-  Return<Result> ret =
-      effect->setCurrentConfigForFeature(0, hidl_vec<uint8_t>());
-  EXPECT_TRUE(ret.isOk());
-}
-
-
-// The main test class for Equalizer Audio Effect HIDL HAL.
-class EqualizerAudioEffectHidlTest : public AudioEffectHidlTest {
- public:
-  void SetUp() override {
-    AudioEffectHidlTest::SetUp();
-    equalizer = IEqualizerEffect::castFrom(effect);
-    ASSERT_NE(nullptr, equalizer.get());
-  }
-
- protected:
-  Uuid getEffectType() override { return EQUALIZER_EFFECT_TYPE; }
-  void getNumBands(uint16_t* numBands);
-  void getLevelRange(int16_t* minLevel, int16_t* maxLevel);
-  void getBandFrequencyRange(uint16_t band, uint32_t* minFreq,
-                             uint32_t* centerFreq, uint32_t* maxFreq);
-  void getPresetCount(size_t* count);
-
-  sp<IEqualizerEffect> equalizer;
-};
-
-void EqualizerAudioEffectHidlTest::getNumBands(uint16_t* numBands) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = equalizer->getNumBands([&](Result r, uint16_t b) {
-    retval = r;
-    if (retval == Result::OK) {
-      *numBands = b;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-void EqualizerAudioEffectHidlTest::getLevelRange(int16_t* minLevel,
-                                                 int16_t* maxLevel) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret =
-      equalizer->getLevelRange([&](Result r, int16_t min, int16_t max) {
-        retval = r;
-        if (retval == Result::OK) {
-          *minLevel = min;
-          *maxLevel = max;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-void EqualizerAudioEffectHidlTest::getBandFrequencyRange(uint16_t band,
-                                                         uint32_t* minFreq,
-                                                         uint32_t* centerFreq,
-                                                         uint32_t* maxFreq) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = equalizer->getBandFrequencyRange(
-      band, [&](Result r, uint32_t min, uint32_t max) {
-        retval = r;
-        if (retval == Result::OK) {
-          *minFreq = min;
-          *maxFreq = max;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-  ret = equalizer->getBandCenterFrequency(band, [&](Result r, uint32_t center) {
-    retval = r;
-    if (retval == Result::OK) {
-      *centerFreq = center;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-void EqualizerAudioEffectHidlTest::getPresetCount(size_t* count) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = equalizer->getPresetNames(
-      [&](Result r, const hidl_vec<hidl_string>& names) {
-        retval = r;
-        if (retval == Result::OK) {
-          *count = names.size();
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetNumBands) {
-  description("Verify that Equalizer effect reports at least one band");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  EXPECT_GT(numBands, 0);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetLevelRange) {
-  description("Verify that Equalizer effect reports adequate band level range");
-  int16_t minLevel = 0x7fff, maxLevel = 0;
-  getLevelRange(&minLevel, &maxLevel);
-  EXPECT_GT(maxLevel, minLevel);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetSetBandLevel) {
-  description(
-      "Verify that manipulating band levels works for Equalizer effect");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  int16_t levels[3]{0x7fff, 0, 0};
-  getLevelRange(&levels[0], &levels[2]);
-  ASSERT_GT(levels[2], levels[0]);
-  levels[1] = (levels[2] + levels[0]) / 2;
-  for (uint16_t i = 0; i < numBands; ++i) {
-    for (size_t j = 0; j < ARRAY_SIZE(levels); ++j) {
-      Return<Result> ret = equalizer->setBandLevel(i, levels[j]);
-      EXPECT_TRUE(ret.isOk());
-      EXPECT_EQ(Result::OK, ret);
-      Result retval = Result::NOT_INITIALIZED;
-      int16_t actualLevel;
-      Return<void> ret2 = equalizer->getBandLevel(i, [&](Result r, int16_t l) {
-        retval = r;
-        if (retval == Result::OK) {
-          actualLevel = l;
-        }
-      });
-      EXPECT_TRUE(ret2.isOk());
-      EXPECT_EQ(Result::OK, retval);
-      EXPECT_EQ(levels[j], actualLevel);
-    }
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetBandCenterFrequencyAndRange) {
-  description(
-      "Verify that Equalizer effect reports adequate band frequency range");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  for (uint16_t i = 0; i < numBands; ++i) {
-    uint32_t minFreq = 0xffffffff, centerFreq = 0xffffffff,
-             maxFreq = 0xffffffff;
-    getBandFrequencyRange(i, &minFreq, &centerFreq, &maxFreq);
-    // Note: NXP legacy implementation reports "1" as upper bound for last band,
-    // so this check fails.
-    EXPECT_GE(maxFreq, centerFreq);
-    EXPECT_GE(centerFreq, minFreq);
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetBandForFrequency) {
-  description(
-      "Verify that Equalizer effect supports GetBandForFrequency correctly");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  for (uint16_t i = 0; i < numBands; ++i) {
-    uint32_t freqs[3]{0, 0, 0};
-    getBandFrequencyRange(i, &freqs[0], &freqs[1], &freqs[2]);
-    // NXP legacy implementation reports "1" as upper bound for last band, some
-    // of the checks fail.
-    for (size_t j = 0; j < ARRAY_SIZE(freqs); ++j) {
-      if (j == 0) {
-        freqs[j]++;
-      }  // Min frequency is an open interval.
-      Result retval = Result::NOT_INITIALIZED;
-      uint16_t actualBand = numBands + 1;
-      Return<void> ret =
-          equalizer->getBandForFrequency(freqs[j], [&](Result r, uint16_t b) {
-            retval = r;
-            if (retval == Result::OK) {
-              actualBand = b;
-            }
-          });
-      EXPECT_TRUE(ret.isOk());
-      EXPECT_EQ(Result::OK, retval);
-      EXPECT_EQ(i, actualBand) << "Frequency: " << freqs[j];
-    }
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetPresetNames) {
-  description("Verify that Equalizer effect reports at least one preset");
-  size_t presetCount;
-  getPresetCount(&presetCount);
-  EXPECT_GT(presetCount, 0u);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetSetCurrentPreset) {
-  description(
-      "Verify that manipulating the current preset for Equalizer effect");
-  size_t presetCount;
-  getPresetCount(&presetCount);
-  ASSERT_GT(presetCount, 0u);
-  for (uint16_t i = 0; i < presetCount; ++i) {
-    Return<Result> ret = equalizer->setCurrentPreset(i);
-    EXPECT_TRUE(ret.isOk());
-    EXPECT_EQ(Result::OK, ret);
-    Result retval = Result::NOT_INITIALIZED;
-    uint16_t actualPreset = 0xffff;
-    Return<void> ret2 = equalizer->getCurrentPreset([&](Result r, uint16_t p) {
-      retval = r;
-      if (retval == Result::OK) {
-        actualPreset = p;
-      }
-    });
-    EXPECT_TRUE(ret2.isOk());
-    EXPECT_EQ(Result::OK, retval);
-    EXPECT_EQ(i, actualPreset);
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetSetAllProperties) {
-  description(
-      "Verify that setting band levels and presets works via Get / "
-      "SetAllProperties for Equalizer effect");
-  using AllProperties =
-      android::hardware::audio::effect::V2_0::IEqualizerEffect::AllProperties;
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  AllProperties props;
-  props.bandLevels.resize(numBands);
-  for (size_t i = 0; i < numBands; ++i) {
-    props.bandLevels[i] = 0;
-  }
-
-  AllProperties actualProps;
-  Result retval = Result::NOT_INITIALIZED;
-
-  // Verify setting of the band levels via properties.
-  props.curPreset = -1;
-  Return<Result> ret = equalizer->setAllProperties(props);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  Return<void> ret2 =
-      equalizer->getAllProperties([&](Result r, AllProperties p) {
-        retval = r;
-        if (retval == Result::OK) {
-          actualProps = p;
-        }
-      });
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(props.bandLevels, actualProps.bandLevels);
-
-  // Verify setting of the current preset via properties.
-  props.curPreset = 0;  // Assuming there is at least one preset.
-  ret = equalizer->setAllProperties(props);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  ret2 = equalizer->getAllProperties([&](Result r, AllProperties p) {
-    retval = r;
-    if (retval == Result::OK) {
-      actualProps = p;
-    }
-  });
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(props.curPreset, actualProps.curPreset);
-}
-
-// The main test class for Equalizer Audio Effect HIDL HAL.
-class LoudnessEnhancerAudioEffectHidlTest : public AudioEffectHidlTest {
- public:
-  void SetUp() override {
-    AudioEffectHidlTest::SetUp();
-    enhancer = ILoudnessEnhancerEffect::castFrom(effect);
-    ASSERT_NE(nullptr, enhancer.get());
-  }
-
- protected:
-  Uuid getEffectType() override { return LOUDNESS_ENHANCER_EFFECT_TYPE; }
-
-  sp<ILoudnessEnhancerEffect> enhancer;
-};
-
-TEST_F(LoudnessEnhancerAudioEffectHidlTest, GetSetTargetGain) {
-  description(
-      "Verify that manipulating the target gain works for Loudness Enhancer "
-      "effect");
-  const int32_t gain = 100;
-  Return<Result> ret = enhancer->setTargetGain(gain);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  int32_t actualGain = 0;
-  Result retval;
-  Return<void> ret2 = enhancer->getTargetGain([&](Result r, int32_t g) {
-    retval = r;
-    if (retval == Result::OK) {
-      actualGain = g;
-    }
-  });
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(gain, actualGain);
-}
-
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(AudioEffectsFactoryHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    AudioEffectsFactoryHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
diff --git a/audio/effect/2.0/xml/audio_effects_conf.xsd b/audio/effect/2.0/xml/audio_effects_conf.xsd
new file mode 100644
index 0000000..b97b847
--- /dev/null
+++ b/audio/effect/2.0/xml/audio_effects_conf.xsd
@@ -0,0 +1,250 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           targetNamespace="http://schemas.android.com/audio/audio_effects_conf/v2_0"
+           xmlns:aec="http://schemas.android.com/audio/audio_effects_conf/v2_0"
+           elementFormDefault="qualified">
+
+  <!-- Simple types -->
+  <xs:simpleType name="versionType">
+    <xs:restriction base="xs:decimal">
+      <xs:enumeration value="2.0"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="uuidType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="streamInputType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="mic"/>
+      <xs:enumeration value="voice_uplink"/>
+      <xs:enumeration value="voice_downlink"/>
+      <xs:enumeration value="voice_call"/>
+      <xs:enumeration value="camcorder"/>
+      <xs:enumeration value="voice_recognition"/>
+      <xs:enumeration value="voice_communication"/>
+      <xs:enumeration value="unprocessed"/>
+      <xs:enumeration value="voice_performance"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="streamOutputType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="voice_call"/>
+      <xs:enumeration value="system"/>
+      <xs:enumeration value="ring"/>
+      <xs:enumeration value="music"/>
+      <xs:enumeration value="alarm"/>
+      <xs:enumeration value="notification"/>
+      <xs:enumeration value="bluetooth_sco"/>
+      <xs:enumeration value="enforced_audible"/>
+      <xs:enumeration value="dtmf"/>
+      <xs:enumeration value="tts"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="relativePathType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="[^/].*"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <!-- Complex types -->
+  <xs:complexType name="librariesType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        List of effect libraries to load. Each library element must have "name" and
+        "path" attributes. The latter is giving the path of the library .so file
+        relative to the standard effect folders: /(vendor|odm|system)/lib(64)?/soundfx/
+
+        Example for a library in "/vendor/lib/soundfx/lib.so":
+        <library name="name" path="lib.so"/>
+
+      </xs:documentation>
+    </xs:annotation>
+    <xs:sequence>
+      <xs:element name="library" minOccurs="0" maxOccurs="unbounded">
+        <xs:complexType>
+          <xs:attribute name="name" type="xs:string" use="required"/>
+          <xs:attribute name="path" type="aec:relativePathType" use="required"/>
+        </xs:complexType>
+      </xs:element>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:complexType name="effectImplType">
+    <xs:attribute name="library" type="xs:string" use="required"/>
+    <xs:attribute name="uuid" type="aec:uuidType" use="required"/>
+  </xs:complexType>
+  <xs:complexType name="effectType">
+    <xs:complexContent>
+      <xs:extension base="aec:effectImplType">
+        <xs:attribute name="name" type="xs:string" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="effectProxyType">
+    <xs:complexContent>
+      <xs:extension base="aec:effectType">
+        <xs:sequence>
+          <xs:element name="libsw" type="aec:effectImplType"/>
+          <xs:element name="libhw" type="aec:effectImplType"/>
+        </xs:sequence>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="effectsType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        List of effects to load. Each effect element must contain "name",
+        "library", and "uuid" attrs. The value of the "library" attr must
+        correspond to the name of a "library" element. The name of the effect
+        element is indicative, only the value of the "uuid" element designates
+        the effect for the audio framework.  The uuid is the implementation
+        specific UUID as specified by the effect vendor. This is not the generic
+        effect type UUID.
+
+        For effect proxy implementations, SW and HW implemetations of the effect
+        can be specified.
+
+        Example:
+
+        <effect name="name" library="lib" uuid="uuuu"/>
+        <effectProxy name="proxied" library="proxy" uuid="xxxx">
+            <libsw library="sw_bundle" uuid="yyyy"/>
+            <libhw library="offload_bundle" uuid="zzzz"/>
+        </effectProxy>
+
+      </xs:documentation>
+    </xs:annotation>
+    <xs:choice maxOccurs="unbounded">
+      <xs:element name="effect" type="aec:effectType" minOccurs="0" maxOccurs="unbounded"/>
+      <xs:element name="effectProxy" type="aec:effectProxyType" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:choice>
+  </xs:complexType>
+  <xs:complexType name="streamProcessingType">
+    <xs:sequence>
+      <xs:element name="apply" minOccurs="0" maxOccurs="unbounded">
+        <xs:complexType>
+          <xs:attribute name="effect" type="xs:string" use="required"/>
+        </xs:complexType>
+      </xs:element>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:complexType name="streamPreprocessType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        Audio preprocessing configuration. The processing configuration consists
+        of a list of elements each describing processing settings for a given
+        input stream. Valid input stream types are listed in "streamInputType".
+
+        Each stream element contains a list of "apply" elements. The value of the
+        "effect" attr must correspond to the name of an "effect" element.
+
+        Example:
+
+        <stream type="voice_communication">
+            <apply effect="effect1"/>
+            <apply effect="effect2"/>
+        </stream>
+
+      </xs:documentation>
+    </xs:annotation>
+    <xs:complexContent>
+      <xs:extension base="aec:streamProcessingType">
+        <xs:attribute name="type" type="aec:streamInputType" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="streamPostprocessType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        Audio postprocessing configuration. The processing configuration consists
+        of a list of elements each describing processing settings for a given
+        output stream. Valid output stream types are listed in "streamOutputType".
+
+        Each stream element contains a list of "apply" elements. The value of the
+        "effect" attr must correspond to the name of an "effect" element.
+
+        Example:
+
+        <stream type="music">
+            <apply effect="effect1"/>
+        </stream>
+
+      </xs:documentation>
+    </xs:annotation>
+    <xs:complexContent>
+      <xs:extension base="aec:streamProcessingType">
+        <xs:attribute name="type" type="aec:streamOutputType" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <!-- Root element -->
+  <xs:element name="audio_effects_conf">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element name="libraries" type="aec:librariesType"/>
+        <xs:element name="effects" type="aec:effectsType"/>
+        <xs:element name="postprocess" minOccurs="0" maxOccurs="1">
+          <xs:complexType>
+            <xs:sequence>
+              <xs:element name="stream" type="aec:streamPostprocessType" minOccurs="0" maxOccurs="unbounded"/>
+            </xs:sequence>
+          </xs:complexType>
+        </xs:element>
+        <xs:element name="preprocess" minOccurs="0" maxOccurs="1">
+          <xs:complexType>
+            <xs:sequence>
+              <xs:element name="stream" type="aec:streamPreprocessType" minOccurs="0" maxOccurs="unbounded"/>
+            </xs:sequence>
+          </xs:complexType>
+        </xs:element>
+      </xs:sequence>
+      <xs:attribute name="version" type="aec:versionType" use="required"/>
+    </xs:complexType>
+
+    <!-- Keys and references -->
+    <xs:key name="libraryName">
+      <xs:selector xpath="aec:libraries/aec:library"/>
+      <xs:field xpath="@name"/>
+    </xs:key>
+    <xs:keyref name="libraryNameRef1" refer="aec:libraryName">
+      <xs:selector xpath="aec:effects/aec:effect"/>
+      <xs:field xpath="@library"/>
+    </xs:keyref>
+    <xs:keyref name="libraryNameRef2" refer="aec:libraryName">
+      <xs:selector xpath="aec:effects/aec:effect/aec:libsw"/>
+      <xs:field xpath="@library"/>
+    </xs:keyref>
+    <xs:keyref name="libraryNameRef3" refer="aec:libraryName">
+      <xs:selector xpath="aec:effects/aec:effect/aec:libhw"/>
+      <xs:field xpath="@library"/>
+    </xs:keyref>
+    <xs:key name="effectName">
+      <xs:selector xpath="aec:effects/aec:effect|aec:effects/aec:effectProxy"/>
+      <xs:field xpath="@name"/>
+    </xs:key>
+    <xs:keyref name="effectNamePreRef" refer="aec:effectName">
+      <xs:selector xpath="aec:preprocess/aec:stream/aec:apply"/>
+      <xs:field xpath="@effect"/>
+    </xs:keyref>
+    <xs:keyref name="effectNamePostRef" refer="aec:effectName">
+      <xs:selector xpath="aec:postprocess/aec:stream/aec:apply"/>
+      <xs:field xpath="@effect"/>
+    </xs:keyref>
+  </xs:element>
+</xs:schema>
diff --git a/audio/effect/2.0/xml/audio_effects_conf_V2_0.xsd b/audio/effect/2.0/xml/audio_effects_conf_V2_0.xsd
deleted file mode 100644
index df281b3..0000000
--- a/audio/effect/2.0/xml/audio_effects_conf_V2_0.xsd
+++ /dev/null
@@ -1,249 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-           targetNamespace="http://schemas.android.com/audio/audio_effects_conf/v2_0"
-           xmlns:aec="http://schemas.android.com/audio/audio_effects_conf/v2_0"
-           elementFormDefault="qualified">
-
-  <!-- Simple types -->
-  <xs:simpleType name="versionType">
-    <xs:restriction base="xs:decimal">
-      <xs:enumeration value="2.0"/>
-    </xs:restriction>
-  </xs:simpleType>
-  <xs:simpleType name="uuidType">
-    <xs:restriction base="xs:string">
-      <xs:pattern value="[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}"/>
-    </xs:restriction>
-  </xs:simpleType>
-  <xs:simpleType name="streamInputType">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="mic"/>
-      <xs:enumeration value="voice_uplink"/>
-      <xs:enumeration value="voice_downlink"/>
-      <xs:enumeration value="voice_call"/>
-      <xs:enumeration value="camcorder"/>
-      <xs:enumeration value="voice_recognition"/>
-      <xs:enumeration value="voice_communication"/>
-      <xs:enumeration value="unprocessed"/>
-    </xs:restriction>
-  </xs:simpleType>
-  <xs:simpleType name="streamOutputType">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="voice_call"/>
-      <xs:enumeration value="system"/>
-      <xs:enumeration value="ring"/>
-      <xs:enumeration value="music"/>
-      <xs:enumeration value="alarm"/>
-      <xs:enumeration value="notification"/>
-      <xs:enumeration value="bluetooth_sco"/>
-      <xs:enumeration value="enforced_audible"/>
-      <xs:enumeration value="dtmf"/>
-      <xs:enumeration value="tts"/>
-    </xs:restriction>
-  </xs:simpleType>
-  <xs:simpleType name="relativePathType">
-    <xs:restriction base="xs:string">
-      <xs:pattern value="[^/].*"/>
-    </xs:restriction>
-  </xs:simpleType>
-
-  <!-- Complex types -->
-  <xs:complexType name="librariesType">
-    <xs:annotation>
-      <xs:documentation xml:lang="en">
-        List of effect libraries to load. Each library element must have "name" and
-        "path" attributes. The latter is giving the path of the library .so file
-        relative to the standard effect folders: /(vendor|odm|system)/lib(64)?/soundfx/
-
-        Example for a library in "/vendor/lib/soundfx/lib.so":
-        <library name="name" path="lib.so"/>
-
-      </xs:documentation>
-    </xs:annotation>
-    <xs:sequence>
-      <xs:element name="library" minOccurs="0" maxOccurs="unbounded">
-        <xs:complexType>
-          <xs:attribute name="name" type="xs:string" use="required"/>
-          <xs:attribute name="path" type="aec:relativePathType" use="required"/>
-        </xs:complexType>
-      </xs:element>
-    </xs:sequence>
-  </xs:complexType>
-  <xs:complexType name="effectImplType">
-    <xs:attribute name="library" type="xs:string" use="required"/>
-    <xs:attribute name="uuid" type="aec:uuidType" use="required"/>
-  </xs:complexType>
-  <xs:complexType name="effectType">
-    <xs:complexContent>
-      <xs:extension base="aec:effectImplType">
-        <xs:attribute name="name" type="xs:string" use="required"/>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-  <xs:complexType name="effectProxyType">
-    <xs:complexContent>
-      <xs:extension base="aec:effectType">
-        <xs:sequence>
-          <xs:element name="libsw" type="aec:effectImplType"/>
-          <xs:element name="libhw" type="aec:effectImplType"/>
-        </xs:sequence>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-  <xs:complexType name="effectsType">
-    <xs:annotation>
-      <xs:documentation xml:lang="en">
-        List of effects to load. Each effect element must contain "name",
-        "library", and "uuid" attrs. The value of the "library" attr must
-        correspond to the name of a "library" element. The name of the effect
-        element is indicative, only the value of the "uuid" element designates
-        the effect for the audio framework.  The uuid is the implementation
-        specific UUID as specified by the effect vendor. This is not the generic
-        effect type UUID.
-
-        For effect proxy implementations, SW and HW implemetations of the effect
-        can be specified.
-
-        Example:
-
-        <effect name="name" library="lib" uuid="uuuu"/>
-        <effectProxy name="proxied" library="proxy" uuid="xxxx">
-            <libsw library="sw_bundle" uuid="yyyy"/>
-            <libhw library="offload_bundle" uuid="zzzz"/>
-        </effectProxy>
-
-      </xs:documentation>
-    </xs:annotation>
-    <xs:choice maxOccurs="unbounded">
-      <xs:element name="effect" type="aec:effectType" minOccurs="0" maxOccurs="unbounded"/>
-      <xs:element name="effectProxy" type="aec:effectProxyType" minOccurs="0" maxOccurs="unbounded"/>
-    </xs:choice>
-  </xs:complexType>
-  <xs:complexType name="streamProcessingType">
-    <xs:sequence>
-      <xs:element name="apply" minOccurs="0" maxOccurs="unbounded">
-        <xs:complexType>
-          <xs:attribute name="effect" type="xs:string" use="required"/>
-        </xs:complexType>
-      </xs:element>
-    </xs:sequence>
-  </xs:complexType>
-  <xs:complexType name="streamPreprocessType">
-    <xs:annotation>
-      <xs:documentation xml:lang="en">
-        Audio preprocessing configuration. The processing configuration consists
-        of a list of elements each describing processing settings for a given
-        input stream. Valid input stream types are listed in "streamInputType".
-
-        Each stream element contains a list of "apply" elements. The value of the
-        "effect" attr must correspond to the name of an "effect" element.
-
-        Example:
-
-        <stream type="voice_communication">
-            <apply effect="effect1"/>
-            <apply effect="effect2"/>
-        </stream>
-
-      </xs:documentation>
-    </xs:annotation>
-    <xs:complexContent>
-      <xs:extension base="aec:streamProcessingType">
-        <xs:attribute name="type" type="aec:streamInputType" use="required"/>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-  <xs:complexType name="streamPostprocessType">
-    <xs:annotation>
-      <xs:documentation xml:lang="en">
-        Audio postprocessing configuration. The processing configuration consists
-        of a list of elements each describing processing settings for a given
-        output stream. Valid output stream types are listed in "streamOutputType".
-
-        Each stream element contains a list of "apply" elements. The value of the
-        "effect" attr must correspond to the name of an "effect" element.
-
-        Example:
-
-        <stream type="music">
-            <apply effect="effect1"/>
-        </stream>
-
-      </xs:documentation>
-    </xs:annotation>
-    <xs:complexContent>
-      <xs:extension base="aec:streamProcessingType">
-        <xs:attribute name="type" type="aec:streamOutputType" use="required"/>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <!-- Root element -->
-  <xs:element name="audio_effects_conf">
-    <xs:complexType>
-      <xs:sequence>
-        <xs:element name="libraries" type="aec:librariesType"/>
-        <xs:element name="effects" type="aec:effectsType"/>
-        <xs:element name="postprocess" minOccurs="0" maxOccurs="1">
-          <xs:complexType>
-            <xs:sequence>
-              <xs:element name="stream" type="aec:streamPostprocessType" minOccurs="0" maxOccurs="unbounded"/>
-            </xs:sequence>
-          </xs:complexType>
-        </xs:element>
-        <xs:element name="preprocess" minOccurs="0" maxOccurs="1">
-          <xs:complexType>
-            <xs:sequence>
-              <xs:element name="stream" type="aec:streamPreprocessType" minOccurs="0" maxOccurs="unbounded"/>
-            </xs:sequence>
-          </xs:complexType>
-        </xs:element>
-      </xs:sequence>
-      <xs:attribute name="version" type="aec:versionType" use="required"/>
-    </xs:complexType>
-
-    <!-- Keys and references -->
-    <xs:key name="libraryName">
-      <xs:selector xpath="aec:libraries/aec:library"/>
-      <xs:field xpath="@name"/>
-    </xs:key>
-    <xs:keyref name="libraryNameRef1" refer="aec:libraryName">
-      <xs:selector xpath="aec:effects/aec:effect"/>
-      <xs:field xpath="@library"/>
-    </xs:keyref>
-    <xs:keyref name="libraryNameRef2" refer="aec:libraryName">
-      <xs:selector xpath="aec:effects/aec:effect/aec:libsw"/>
-      <xs:field xpath="@library"/>
-    </xs:keyref>
-    <xs:keyref name="libraryNameRef3" refer="aec:libraryName">
-      <xs:selector xpath="aec:effects/aec:effect/aec:libhw"/>
-      <xs:field xpath="@library"/>
-    </xs:keyref>
-    <xs:key name="effectName">
-      <xs:selector xpath="aec:effects/aec:effect|aec:effects/aec:effectProxy"/>
-      <xs:field xpath="@name"/>
-    </xs:key>
-    <xs:keyref name="effectNamePreRef" refer="aec:effectName">
-      <xs:selector xpath="aec:preprocess/aec:stream/aec:apply"/>
-      <xs:field xpath="@effect"/>
-    </xs:keyref>
-    <xs:keyref name="effectNamePostRef" refer="aec:effectName">
-      <xs:selector xpath="aec:postprocess/aec:stream/aec:apply"/>
-      <xs:field xpath="@effect"/>
-    </xs:keyref>
-  </xs:element>
-</xs:schema>
diff --git a/audio/effect/4.0/default/AcousticEchoCancelerEffect.cpp b/audio/effect/4.0/default/AcousticEchoCancelerEffect.cpp
deleted file mode 100644
index 242740e..0000000
--- a/audio/effect/4.0/default/AcousticEchoCancelerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AEC_Effect_HAL"
-
-#include "AcousticEchoCancelerEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/AcousticEchoCancelerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/AcousticEchoCancelerEffect.h b/audio/effect/4.0/default/AcousticEchoCancelerEffect.h
deleted file mode 100644
index 0ac0a1e..0000000
--- a/audio/effect/4.0/default/AcousticEchoCancelerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_ACOUSTICECHOCANCELEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_ACOUSTICECHOCANCELEREFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IAcousticEchoCancelerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/AcousticEchoCancelerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_ACOUSTICECHOCANCELEREFFECT_H
diff --git a/audio/effect/4.0/default/Android.bp b/audio/effect/4.0/default/Android.bp
deleted file mode 100644
index dcb2269..0000000
--- a/audio/effect/4.0/default/Android.bp
+++ /dev/null
@@ -1,50 +0,0 @@
-cc_library_shared {
-    name: "android.hardware.audio.effect@4.0-impl",
-    defaults: ["hidl_defaults"],
-    vendor: true,
-    relative_install_path: "hw",
-    srcs: [
-        "AcousticEchoCancelerEffect.cpp",
-        "AudioBufferManager.cpp",
-        "AutomaticGainControlEffect.cpp",
-        "BassBoostEffect.cpp",
-        "Conversions.cpp",
-        "DownmixEffect.cpp",
-        "Effect.cpp",
-        "EffectsFactory.cpp",
-        "EnvironmentalReverbEffect.cpp",
-        "EqualizerEffect.cpp",
-        "LoudnessEnhancerEffect.cpp",
-        "NoiseSuppressionEffect.cpp",
-        "PresetReverbEffect.cpp",
-        "VirtualizerEffect.cpp",
-        "VisualizerEffect.cpp",
-    ],
-
-    shared_libs: [
-        "libbase",
-        "libcutils",
-        "libeffects",
-        "libfmq",
-        "libhidlbase",
-        "libhidlmemory",
-        "libhidltransport",
-        "liblog",
-        "libutils",
-        "android.hardware.audio.common-util",
-        "android.hardware.audio.common@4.0",
-        "android.hardware.audio.common@4.0-util",
-        "android.hardware.audio.effect@4.0",
-        "android.hidl.memory@1.0",
-    ],
-
-    header_libs: [
-        "android.hardware.audio.common.util@all-versions",
-        "android.hardware.audio.effect@all-versions-impl",
-        "libaudio_system_headers",
-        "libaudioclient_headers",
-        "libeffects_headers",
-        "libhardware_headers",
-        "libmedia_headers",
-    ],
-}
diff --git a/audio/effect/4.0/default/AudioBufferManager.cpp b/audio/effect/4.0/default/AudioBufferManager.cpp
deleted file mode 100644
index 2d75f3f..0000000
--- a/audio/effect/4.0/default/AudioBufferManager.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "AudioBufferManager.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/AudioBufferManager.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/AudioBufferManager.h b/audio/effect/4.0/default/AudioBufferManager.h
deleted file mode 100644
index 1f151e6..0000000
--- a/audio/effect/4.0/default/AudioBufferManager.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_AUDIO_BUFFER_MANAGER_H_
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_AUDIO_BUFFER_MANAGER_H_
-
-#include <android/hardware/audio/effect/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/AudioBufferManager.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_AUDIO_BUFFER_MANAGER_H_
diff --git a/audio/effect/4.0/default/AutomaticGainControlEffect.cpp b/audio/effect/4.0/default/AutomaticGainControlEffect.cpp
deleted file mode 100644
index 9d21c8a..0000000
--- a/audio/effect/4.0/default/AutomaticGainControlEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AGC_Effect_HAL"
-
-#include "AutomaticGainControlEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/AutomaticGainControlEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/AutomaticGainControlEffect.h b/audio/effect/4.0/default/AutomaticGainControlEffect.h
deleted file mode 100644
index 7f12007..0000000
--- a/audio/effect/4.0/default/AutomaticGainControlEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_AUTOMATICGAINCONTROLEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_AUTOMATICGAINCONTROLEFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IAutomaticGainControlEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/AutomaticGainControlEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_AUTOMATICGAINCONTROLEFFECT_H
diff --git a/audio/effect/4.0/default/BassBoostEffect.cpp b/audio/effect/4.0/default/BassBoostEffect.cpp
deleted file mode 100644
index 74a626b..0000000
--- a/audio/effect/4.0/default/BassBoostEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BassBoost_HAL"
-
-#include "BassBoostEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/BassBoostEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/BassBoostEffect.h b/audio/effect/4.0/default/BassBoostEffect.h
deleted file mode 100644
index 206a75f..0000000
--- a/audio/effect/4.0/default/BassBoostEffect.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_BASSBOOSTEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_BASSBOOSTEFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IBassBoostEffect.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/BassBoostEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_BASSBOOSTEFFECT_H
diff --git a/audio/effect/4.0/default/Conversions.cpp b/audio/effect/4.0/default/Conversions.cpp
deleted file mode 100644
index 91285ae..0000000
--- a/audio/effect/4.0/default/Conversions.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Conversions.h"
-#include "HidlUtils.h"
-
-using ::android::hardware::audio::common::V4_0::HidlUtils;
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/Conversions.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/Conversions.h b/audio/effect/4.0/default/Conversions.h
deleted file mode 100644
index 50e380f..0000000
--- a/audio/effect/4.0/default/Conversions.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_CONVERSIONS_H_
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_CONVERSIONS_H_
-
-#include <android/hardware/audio/effect/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/Conversions.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_CONVERSIONS_H_
diff --git a/audio/effect/4.0/default/DownmixEffect.cpp b/audio/effect/4.0/default/DownmixEffect.cpp
deleted file mode 100644
index 07fcab2..0000000
--- a/audio/effect/4.0/default/DownmixEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Downmix_HAL"
-
-#include "DownmixEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/DownmixEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/DownmixEffect.h b/audio/effect/4.0/default/DownmixEffect.h
deleted file mode 100644
index 5ae820b..0000000
--- a/audio/effect/4.0/default/DownmixEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_DOWNMIXEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_DOWNMIXEFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IDownmixEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/DownmixEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_DOWNMIXEFFECT_H
diff --git a/audio/effect/4.0/default/Effect.cpp b/audio/effect/4.0/default/Effect.cpp
deleted file mode 100644
index 707044b..0000000
--- a/audio/effect/4.0/default/Effect.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <memory.h>
-
-#define LOG_TAG "EffectHAL"
-#define ATRACE_TAG ATRACE_TAG_AUDIO
-
-#include "Conversions.h"
-#include "Effect.h"
-#include "common/all-versions/default/EffectMap.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/Effect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/Effect.h b/audio/effect/4.0/default/Effect.h
deleted file mode 100644
index 9ca79c4..0000000
--- a/audio/effect/4.0/default/Effect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IEffect.h>
-
-#include "AudioBufferManager.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/Effect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EFFECT_H
diff --git a/audio/effect/4.0/default/EffectsFactory.cpp b/audio/effect/4.0/default/EffectsFactory.cpp
deleted file mode 100644
index ee0413d..0000000
--- a/audio/effect/4.0/default/EffectsFactory.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "EffectFactoryHAL"
-#include "EffectsFactory.h"
-#include "AcousticEchoCancelerEffect.h"
-#include "AutomaticGainControlEffect.h"
-#include "BassBoostEffect.h"
-#include "Conversions.h"
-#include "DownmixEffect.h"
-#include "Effect.h"
-#include "EnvironmentalReverbEffect.h"
-#include "EqualizerEffect.h"
-#include "HidlUtils.h"
-#include "LoudnessEnhancerEffect.h"
-#include "NoiseSuppressionEffect.h"
-#include "PresetReverbEffect.h"
-#include "VirtualizerEffect.h"
-#include "VisualizerEffect.h"
-#include "common/all-versions/default/EffectMap.h"
-
-using ::android::hardware::audio::common::V4_0::HidlUtils;
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/EffectsFactory.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/EffectsFactory.h b/audio/effect/4.0/default/EffectsFactory.h
deleted file mode 100644
index 48e4b4c..0000000
--- a/audio/effect/4.0/default/EffectsFactory.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EFFECTSFACTORY_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EFFECTSFACTORY_H
-
-#include <system/audio_effect.h>
-
-#include <android/hardware/audio/effect/4.0/IEffectsFactory.h>
-
-#include <hidl/MQDescriptor.h>
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/EffectsFactory.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EFFECTSFACTORY_H
diff --git a/audio/effect/4.0/default/EnvironmentalReverbEffect.cpp b/audio/effect/4.0/default/EnvironmentalReverbEffect.cpp
deleted file mode 100644
index cc3102d..0000000
--- a/audio/effect/4.0/default/EnvironmentalReverbEffect.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "EnvReverb_HAL"
-#include <android/log.h>
-
-#include "EnvironmentalReverbEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/EnvironmentalReverbEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/EnvironmentalReverbEffect.h b/audio/effect/4.0/default/EnvironmentalReverbEffect.h
deleted file mode 100644
index c0fb25c..0000000
--- a/audio/effect/4.0/default/EnvironmentalReverbEffect.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_ENVIRONMENTALREVERBEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_ENVIRONMENTALREVERBEFFECT_H
-
-#include <system/audio_effects/effect_environmentalreverb.h>
-
-#include <android/hardware/audio/effect/4.0/IEnvironmentalReverbEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/EnvironmentalReverbEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_ENVIRONMENTALREVERBEFFECT_H
diff --git a/audio/effect/4.0/default/EqualizerEffect.cpp b/audio/effect/4.0/default/EqualizerEffect.cpp
deleted file mode 100644
index d0a40bc..0000000
--- a/audio/effect/4.0/default/EqualizerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Equalizer_HAL"
-
-#include "EqualizerEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/EqualizerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/EqualizerEffect.h b/audio/effect/4.0/default/EqualizerEffect.h
deleted file mode 100644
index 7c9463b..0000000
--- a/audio/effect/4.0/default/EqualizerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EQUALIZEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EQUALIZEREFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IEqualizerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/EqualizerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_EQUALIZEREFFECT_H
diff --git a/audio/effect/4.0/default/LoudnessEnhancerEffect.cpp b/audio/effect/4.0/default/LoudnessEnhancerEffect.cpp
deleted file mode 100644
index e3c5184..0000000
--- a/audio/effect/4.0/default/LoudnessEnhancerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "LoudnessEnhancer_HAL"
-
-#include "LoudnessEnhancerEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/LoudnessEnhancerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/LoudnessEnhancerEffect.h b/audio/effect/4.0/default/LoudnessEnhancerEffect.h
deleted file mode 100644
index 64fa26a..0000000
--- a/audio/effect/4.0/default/LoudnessEnhancerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_LOUDNESSENHANCEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_LOUDNESSENHANCEREFFECT_H
-
-#include <android/hardware/audio/effect/4.0/ILoudnessEnhancerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/LoudnessEnhancerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_LOUDNESSENHANCEREFFECT_H
diff --git a/audio/effect/4.0/default/NoiseSuppressionEffect.cpp b/audio/effect/4.0/default/NoiseSuppressionEffect.cpp
deleted file mode 100644
index e83a8e3..0000000
--- a/audio/effect/4.0/default/NoiseSuppressionEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "NS_Effect_HAL"
-
-#include "NoiseSuppressionEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/NoiseSuppressionEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/NoiseSuppressionEffect.h b/audio/effect/4.0/default/NoiseSuppressionEffect.h
deleted file mode 100644
index 36d45af..0000000
--- a/audio/effect/4.0/default/NoiseSuppressionEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_NOISESUPPRESSIONEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_NOISESUPPRESSIONEFFECT_H
-
-#include <android/hardware/audio/effect/4.0/INoiseSuppressionEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/NoiseSuppressionEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_NOISESUPPRESSIONEFFECT_H
diff --git a/audio/effect/4.0/default/OWNERS b/audio/effect/4.0/default/OWNERS
deleted file mode 100644
index 6fdc97c..0000000
--- a/audio/effect/4.0/default/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
diff --git a/audio/effect/4.0/default/PresetReverbEffect.cpp b/audio/effect/4.0/default/PresetReverbEffect.cpp
deleted file mode 100644
index 0c23be7..0000000
--- a/audio/effect/4.0/default/PresetReverbEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "PresetReverb_HAL"
-
-#include "PresetReverbEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/PresetReverbEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/PresetReverbEffect.h b/audio/effect/4.0/default/PresetReverbEffect.h
deleted file mode 100644
index 3eeae0a..0000000
--- a/audio/effect/4.0/default/PresetReverbEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_PRESETREVERBEFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_PRESETREVERBEFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IPresetReverbEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/PresetReverbEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_PRESETREVERBEFFECT_H
diff --git a/audio/effect/4.0/default/VirtualizerEffect.cpp b/audio/effect/4.0/default/VirtualizerEffect.cpp
deleted file mode 100644
index f50e8ad..0000000
--- a/audio/effect/4.0/default/VirtualizerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Virtualizer_HAL"
-
-#include "VirtualizerEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/VirtualizerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/VirtualizerEffect.h b/audio/effect/4.0/default/VirtualizerEffect.h
deleted file mode 100644
index 8e7114e..0000000
--- a/audio/effect/4.0/default/VirtualizerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_VIRTUALIZEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_VIRTUALIZEREFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IVirtualizerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/VirtualizerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_VIRTUALIZEREFFECT_H
diff --git a/audio/effect/4.0/default/VisualizerEffect.cpp b/audio/effect/4.0/default/VisualizerEffect.cpp
deleted file mode 100644
index 8d4f100..0000000
--- a/audio/effect/4.0/default/VisualizerEffect.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Visualizer_HAL"
-
-#include "VisualizerEffect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/VisualizerEffect.impl.h>
-#undef AUDIO_HAL_VERSION
diff --git a/audio/effect/4.0/default/VisualizerEffect.h b/audio/effect/4.0/default/VisualizerEffect.h
deleted file mode 100644
index 6b5ab9c..0000000
--- a/audio/effect/4.0/default/VisualizerEffect.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_VISUALIZEREFFECT_H
-#define ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_VISUALIZEREFFECT_H
-
-#include <android/hardware/audio/effect/4.0/IVisualizerEffect.h>
-
-#include "Effect.h"
-
-#define AUDIO_HAL_VERSION V4_0
-#include <effect/all-versions/default/VisualizerEffect.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V4_0_VISUALIZEREFFECT_H
diff --git a/audio/effect/4.0/vts/OWNERS b/audio/effect/4.0/vts/OWNERS
deleted file mode 100644
index 8711a9f..0000000
--- a/audio/effect/4.0/vts/OWNERS
+++ /dev/null
@@ -1,5 +0,0 @@
-elaurent@google.com
-krocard@google.com
-mnaganov@google.com
-yim@google.com
-zhuoyao@google.com
\ No newline at end of file
diff --git a/audio/effect/4.0/vts/functional/Android.bp b/audio/effect/4.0/vts/functional/Android.bp
deleted file mode 100644
index f1a3f0a..0000000
--- a/audio/effect/4.0/vts/functional/Android.bp
+++ /dev/null
@@ -1,37 +0,0 @@
-//
-// Copyright (C) 2016 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-cc_test {
-    name: "VtsHalAudioEffectV4_0TargetTest",
-    defaults: ["VtsHalTargetTestDefaults"],
-    srcs: [
-        "VtsHalAudioEffectV4_0TargetTest.cpp",
-        "ValidateAudioEffectsConfiguration.cpp"
-    ],
-    static_libs: [
-        "android.hardware.audio.common.test.utility",
-        "android.hardware.audio.common@4.0",
-        "android.hardware.audio.effect@4.0",
-        "android.hidl.allocator@1.0",
-        "android.hidl.memory@1.0",
-        "libeffectsconfig",
-        "libxml2",
-    ],
-    header_libs: [
-        "android.hardware.audio.common.util@all-versions",
-    ],
-    test_suites: ["general-tests"],
-}
diff --git a/audio/effect/4.0/vts/functional/ValidateAudioEffectsConfiguration.cpp b/audio/effect/4.0/vts/functional/ValidateAudioEffectsConfiguration.cpp
deleted file mode 100644
index 6338563..0000000
--- a/audio/effect/4.0/vts/functional/ValidateAudioEffectsConfiguration.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <unistd.h>
-#include <iterator>
-
-#include <media/EffectsConfig.h>
-
-#include "utility/ValidateXml.h"
-
-TEST(CheckConfig, audioEffectsConfigurationValidation) {
-    RecordProperty("description",
-                   "Verify that the effects configuration file is valid according to the schema");
-    using namespace android::effectsConfig;
-
-    std::vector<const char*> locations(std::begin(DEFAULT_LOCATIONS), std::end(DEFAULT_LOCATIONS));
-    EXPECT_ONE_VALID_XML_MULTIPLE_LOCATIONS(DEFAULT_NAME, locations,
-                                            "/data/local/tmp/audio_effects_conf_V4_0.xsd");
-}
diff --git a/audio/effect/4.0/vts/functional/VtsHalAudioEffectV4_0TargetTest.cpp b/audio/effect/4.0/vts/functional/VtsHalAudioEffectV4_0TargetTest.cpp
deleted file mode 100644
index ec783c4..0000000
--- a/audio/effect/4.0/vts/functional/VtsHalAudioEffectV4_0TargetTest.cpp
+++ /dev/null
@@ -1,852 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioEffectHidlHalTest"
-#include <android-base/logging.h>
-#include <system/audio.h>
-
-#include <android/hardware/audio/effect/4.0/IEffect.h>
-#include <android/hardware/audio/effect/4.0/IEffectsFactory.h>
-#include <android/hardware/audio/effect/4.0/IEqualizerEffect.h>
-#include <android/hardware/audio/effect/4.0/ILoudnessEnhancerEffect.h>
-#include <android/hardware/audio/effect/4.0/types.h>
-#include <android/hidl/allocator/1.0/IAllocator.h>
-#include <android/hidl/memory/1.0/IMemory.h>
-
-#include <common/all-versions/VersionUtils.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
-
-using android::hardware::audio::common::V4_0::AudioDevice;
-using android::hardware::audio::common::V4_0::AudioHandleConsts;
-using android::hardware::audio::common::V4_0::AudioMode;
-using android::hardware::audio::common::V4_0::AudioSource;
-using android::hardware::audio::common::V4_0::Uuid;
-using android::hardware::audio::common::utils::mkBitfield;
-using android::hardware::audio::effect::V4_0::AudioBuffer;
-using android::hardware::audio::effect::V4_0::EffectAuxChannelsConfig;
-using android::hardware::audio::effect::V4_0::EffectBufferConfig;
-using android::hardware::audio::effect::V4_0::EffectConfig;
-using android::hardware::audio::effect::V4_0::EffectDescriptor;
-using android::hardware::audio::effect::V4_0::EffectOffloadParameter;
-using android::hardware::audio::effect::V4_0::IEffect;
-using android::hardware::audio::effect::V4_0::IEffectsFactory;
-using android::hardware::audio::effect::V4_0::IEqualizerEffect;
-using android::hardware::audio::effect::V4_0::ILoudnessEnhancerEffect;
-using android::hardware::audio::effect::V4_0::Result;
-using android::hardware::MQDescriptorSync;
-using android::hardware::Return;
-using android::hardware::Void;
-using android::hardware::hidl_handle;
-using android::hardware::hidl_memory;
-using android::hardware::hidl_string;
-using android::hardware::hidl_vec;
-using android::hidl::allocator::V1_0::IAllocator;
-using android::hidl::memory::V1_0::IMemory;
-using android::sp;
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
-#endif
-
-// Test environment for Audio Effects Factory HIDL HAL.
-class AudioEffectsFactoryHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static AudioEffectsFactoryHidlEnvironment* Instance() {
-        static AudioEffectsFactoryHidlEnvironment* instance =
-            new AudioEffectsFactoryHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IEffectsFactory>(); }
-};
-
-// The main test class for Audio Effects Factory HIDL HAL.
-class AudioEffectsFactoryHidlTest : public ::testing::VtsHalHidlTargetTestBase {
- public:
-  void SetUp() override {
-      effectsFactory = ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>(
-          AudioEffectsFactoryHidlEnvironment::Instance()->getServiceName<IEffectsFactory>());
-      ASSERT_NE(effectsFactory, nullptr);
-  }
-
-  void TearDown() override { effectsFactory.clear(); }
-
- protected:
-  static void description(const std::string& description) {
-    RecordProperty("description", description);
-  }
-
-  sp<IEffectsFactory> effectsFactory;
-};
-
-TEST_F(AudioEffectsFactoryHidlTest, EnumerateEffects) {
-  description("Verify that EnumerateEffects returns at least one effect");
-  Result retval = Result::NOT_INITIALIZED;
-  size_t effectCount = 0;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        retval = r;
-        effectCount = result.size();
-      });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_GT(effectCount, 0u);
-}
-
-TEST_F(AudioEffectsFactoryHidlTest, CreateEffect) {
-  description("Verify that an effect can be created via CreateEffect");
-  bool gotEffect = false;
-  Uuid effectUuid;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        if (r == Result::OK && result.size() > 0) {
-          gotEffect = true;
-          effectUuid = result[0].uuid;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_TRUE(gotEffect);
-  Result retval = Result::NOT_INITIALIZED;
-  sp<IEffect> effect;
-  ret = effectsFactory->createEffect(
-      effectUuid, 1 /*session*/, 1 /*ioHandle*/,
-      [&](Result r, const sp<IEffect>& result, uint64_t /*effectId*/) {
-        retval = r;
-        if (r == Result::OK) {
-          effect = result;
-        }
-      });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_NE(nullptr, effect.get());
-}
-
-TEST_F(AudioEffectsFactoryHidlTest, GetDescriptor) {
-  description(
-      "Verify that effects factory can provide an effect descriptor via "
-      "GetDescriptor");
-  hidl_vec<EffectDescriptor> allDescriptors;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        if (r == Result::OK) {
-          allDescriptors = result;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_GT(allDescriptors.size(), 0u);
-  for (size_t i = 0; i < allDescriptors.size(); ++i) {
-    ret = effectsFactory->getDescriptor(
-        allDescriptors[i].uuid, [&](Result r, const EffectDescriptor& result) {
-          EXPECT_EQ(r, Result::OK);
-          EXPECT_EQ(result, allDescriptors[i]);
-        });
-  }
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectsFactoryHidlTest, DebugDumpInvalidArgument) {
-    description("Verify that debugDump doesn't crash on invalid arguments");
-    Return<void> ret = effectsFactory->debug(hidl_handle(), {});
-    ASSERT_TRUE(ret.isOk());
-}
-
-// Equalizer effect is required by CDD, but only the type is fixed.
-// This is the same UUID as AudioEffect.EFFECT_TYPE_EQUALIZER in Java.
-static const Uuid EQUALIZER_EFFECT_TYPE = {
-    0x0bed4300, 0xddd6, 0x11db, 0x8f34,
-    std::array<uint8_t, 6>{{0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}};
-// Loudness Enhancer effect is required by CDD, but only the type is fixed.
-// This is the same UUID as AudioEffect.EFFECT_TYPE_LOUDNESS_ENHANCER in Java.
-static const Uuid LOUDNESS_ENHANCER_EFFECT_TYPE = {
-    0xfe3199be, 0xaed0, 0x413f, 0x87bb,
-    std::array<uint8_t, 6>{{0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}}};
-
-// The main test class for Audio Effect HIDL HAL.
-class AudioEffectHidlTest : public ::testing::VtsHalHidlTargetTestBase {
- public:
-  void SetUp() override {
-    effectsFactory =
-        ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>();
-    ASSERT_NE(nullptr, effectsFactory.get());
-
-    findAndCreateEffect(getEffectType());
-    ASSERT_NE(nullptr, effect.get());
-
-    Return<Result> ret = effect->init();
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_EQ(Result::OK, ret);
-  }
-
-  void TearDown() override {
-    effect.clear();
-    effectsFactory.clear();
-  }
-
- protected:
-  static void description(const std::string& description) {
-    RecordProperty("description", description);
-  }
-
-  virtual Uuid getEffectType() { return EQUALIZER_EFFECT_TYPE; }
-
-  void findAndCreateEffect(const Uuid& type);
-  void findEffectInstance(const Uuid& type, Uuid* uuid);
-  void getChannelCount(uint32_t* channelCount);
-
-  sp<IEffectsFactory> effectsFactory;
-  sp<IEffect> effect;
-};
-
-void AudioEffectHidlTest::findAndCreateEffect(const Uuid& type) {
-  Uuid effectUuid;
-  findEffectInstance(type, &effectUuid);
-  Return<void> ret = effectsFactory->createEffect(
-      effectUuid, 1 /*session*/, 1 /*ioHandle*/,
-      [&](Result r, const sp<IEffect>& result, uint64_t /*effectId*/) {
-        if (r == Result::OK) {
-          effect = result;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-}
-
-void AudioEffectHidlTest::findEffectInstance(const Uuid& type, Uuid* uuid) {
-  bool effectFound = false;
-  Return<void> ret = effectsFactory->getAllDescriptors(
-      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
-        if (r == Result::OK) {
-          for (const auto& desc : result) {
-            if (desc.type == type) {
-              effectFound = true;
-              *uuid = desc.uuid;
-              break;
-            }
-          }
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_TRUE(effectFound);
-}
-
-void AudioEffectHidlTest::getChannelCount(uint32_t* channelCount) {
-  Result retval;
-  EffectConfig currentConfig;
-  Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      currentConfig = conf;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-  ASSERT_TRUE(audio_channel_mask_is_valid(
-      static_cast<audio_channel_mask_t>(currentConfig.outputCfg.channels)));
-  *channelCount = audio_channel_count_from_out_mask(
-      static_cast<audio_channel_mask_t>(currentConfig.outputCfg.channels));
-}
-
-TEST_F(AudioEffectHidlTest, Close) {
-  description("Verify that an effect can be closed");
-  Return<Result> ret = effect->close();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, GetDescriptor) {
-  description(
-      "Verify that an effect can return its own descriptor via GetDescriptor");
-  Result retval = Result::NOT_INITIALIZED;
-  Uuid actualType;
-  Return<void> ret =
-      effect->getDescriptor([&](Result r, const EffectDescriptor& desc) {
-        retval = r;
-        if (r == Result::OK) {
-          actualType = desc.type;
-        }
-      });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(getEffectType(), actualType);
-}
-
-TEST_F(AudioEffectHidlTest, GetSetConfig) {
-  description(
-      "Verify that it is possible to manipulate effect config via Get / "
-      "SetConfig");
-  Result retval = Result::NOT_INITIALIZED;
-  EffectConfig currentConfig;
-  Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      currentConfig = conf;
-    }
-  });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  Return<Result> ret2 = effect->setConfig(currentConfig, nullptr, nullptr);
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, ret2);
-}
-
-TEST_F(AudioEffectHidlTest, GetConfigReverse) {
-  description("Verify that GetConfigReverse does not crash");
-  Return<void> ret =
-      effect->getConfigReverse([&](Result, const EffectConfig&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetSupportedAuxChannelsConfigs) {
-  description("Verify that GetSupportedAuxChannelsConfigs does not crash");
-  Return<void> ret = effect->getSupportedAuxChannelsConfigs(
-      0, [&](Result, const hidl_vec<EffectAuxChannelsConfig>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetAuxChannelsConfig) {
-  description("Verify that GetAuxChannelsConfig does not crash");
-  Return<void> ret = effect->getAuxChannelsConfig(
-      [&](Result, const EffectAuxChannelsConfig&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetAuxChannelsConfig) {
-  description("Verify that SetAuxChannelsConfig does not crash");
-  Return<Result> ret = effect->setAuxChannelsConfig(EffectAuxChannelsConfig());
-  EXPECT_TRUE(ret.isOk());
-}
-
-// Not generated automatically because AudioBuffer contains
-// instances of hidl_memory which can't be compared properly
-// in general case due to presence of handles.
-//
-// However, in this particular case, handles must not present
-// thus comparison is possible.
-//
-// operator== must be defined in the same namespace as the structures.
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace V4_0 {
-inline bool operator==(const AudioBuffer& lhs, const AudioBuffer& rhs) {
-  return lhs.id == rhs.id && lhs.frameCount == rhs.frameCount &&
-         lhs.data.handle() == nullptr && rhs.data.handle() == nullptr;
-}
-
-inline bool operator==(const EffectBufferConfig& lhs,
-                       const EffectBufferConfig& rhs) {
-  return lhs.buffer == rhs.buffer && lhs.samplingRateHz == rhs.samplingRateHz &&
-         lhs.channels == rhs.channels && lhs.format == rhs.format &&
-         lhs.accessMode == rhs.accessMode && lhs.mask == rhs.mask;
-}
-
-inline bool operator==(const EffectConfig& lhs, const EffectConfig& rhs) {
-  return lhs.inputCfg == rhs.inputCfg && lhs.outputCfg == rhs.outputCfg;
-}
-}  // namespace V4_0
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-TEST_F(AudioEffectHidlTest, Reset) {
-  description("Verify that Reset preserves effect configuration");
-  Result retval = Result::NOT_INITIALIZED;
-  EffectConfig originalConfig;
-  Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      originalConfig = conf;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-  Return<Result> ret2 = effect->reset();
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, ret2);
-  EffectConfig configAfterReset;
-  ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
-    retval = r;
-    if (r == Result::OK) {
-      configAfterReset = conf;
-    }
-  });
-  EXPECT_EQ(originalConfig, configAfterReset);
-}
-
-TEST_F(AudioEffectHidlTest, DisableEnableDisable) {
-  description("Verify Disable -> Enable -> Disable sequence for an effect");
-  Return<Result> ret = effect->disable();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::INVALID_ARGUMENTS, ret);
-  ret = effect->enable();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  ret = effect->disable();
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetDevice) {
-  description("Verify that SetDevice works for an output chain effect");
-  Return<Result> ret = effect->setDevice(mkBitfield(AudioDevice::OUT_SPEAKER));
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetAndGetVolume) {
-  description("Verify that SetAndGetVolume method works for an effect");
-  uint32_t channelCount;
-  getChannelCount(&channelCount);
-  hidl_vec<uint32_t> volumes;
-  volumes.resize(channelCount);
-  for (uint32_t i = 0; i < channelCount; ++i) {
-    volumes[i] = 0;
-  }
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = effect->setAndGetVolume(
-      volumes, [&](Result r, const hidl_vec<uint32_t>&) { retval = r; });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-}
-
-TEST_F(AudioEffectHidlTest, VolumeChangeNotification) {
-  description("Verify that effect accepts VolumeChangeNotification");
-  uint32_t channelCount;
-  getChannelCount(&channelCount);
-  hidl_vec<uint32_t> volumes;
-  volumes.resize(channelCount);
-  for (uint32_t i = 0; i < channelCount; ++i) {
-    volumes[i] = 0;
-  }
-  Return<Result> ret = effect->volumeChangeNotification(volumes);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetAudioMode) {
-  description("Verify that SetAudioMode works for an effect");
-  Return<Result> ret = effect->setAudioMode(AudioMode::NORMAL);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-}
-
-TEST_F(AudioEffectHidlTest, SetConfigReverse) {
-  description("Verify that SetConfigReverse does not crash");
-  Return<Result> ret =
-      effect->setConfigReverse(EffectConfig(), nullptr, nullptr);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetInputDevice) {
-  description("Verify that SetInputDevice does not crash");
-  Return<Result> ret = effect->setInputDevice(mkBitfield(AudioDevice::IN_BUILTIN_MIC));
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetAudioSource) {
-  description("Verify that SetAudioSource does not crash");
-  Return<Result> ret = effect->setAudioSource(AudioSource::MIC);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, Offload) {
-  description("Verify that calling Offload method does not crash");
-  EffectOffloadParameter offloadParam;
-  offloadParam.isOffload = false;
-  offloadParam.ioHandle =
-      static_cast<int>(AudioHandleConsts::AUDIO_IO_HANDLE_NONE);
-  Return<Result> ret = effect->offload(offloadParam);
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, PrepareForProcessing) {
-  description("Verify that PrepareForProcessing method works for an effect");
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = effect->prepareForProcessing(
-      [&](Result r, const MQDescriptorSync<Result>&) { retval = r; });
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, retval);
-}
-
-TEST_F(AudioEffectHidlTest, SetProcessBuffers) {
-  description("Verify that SetProcessBuffers works for an effect");
-  sp<IAllocator> ashmem = IAllocator::getService("ashmem");
-  ASSERT_NE(nullptr, ashmem.get());
-  bool success = false;
-  AudioBuffer buffer;
-  Return<void> ret =
-      ashmem->allocate(1024, [&](bool s, const hidl_memory& memory) {
-        success = s;
-        if (s) {
-          buffer.data = memory;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_TRUE(success);
-  Return<Result> ret2 = effect->setProcessBuffers(buffer, buffer);
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, ret2);
-}
-
-TEST_F(AudioEffectHidlTest, Command) {
-  description("Verify that Command does not crash");
-  Return<void> ret = effect->command(0, hidl_vec<uint8_t>(), 0,
-                                     [&](int32_t, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetParameter) {
-  description("Verify that SetParameter does not crash");
-  Return<Result> ret =
-      effect->setParameter(hidl_vec<uint8_t>(), hidl_vec<uint8_t>());
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetParameter) {
-  description("Verify that GetParameter does not crash");
-  Return<void> ret = effect->getParameter(
-      hidl_vec<uint8_t>(), 0, [&](Result, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetSupportedConfigsForFeature) {
-  description("Verify that GetSupportedConfigsForFeature does not crash");
-  Return<void> ret = effect->getSupportedConfigsForFeature(
-      0, 0, 0, [&](Result, uint32_t, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, GetCurrentConfigForFeature) {
-  description("Verify that GetCurrentConfigForFeature does not crash");
-  Return<void> ret = effect->getCurrentConfigForFeature(
-      0, 0, [&](Result, const hidl_vec<uint8_t>&) {});
-  EXPECT_TRUE(ret.isOk());
-}
-
-TEST_F(AudioEffectHidlTest, SetCurrentConfigForFeature) {
-  description("Verify that SetCurrentConfigForFeature does not crash");
-  Return<Result> ret =
-      effect->setCurrentConfigForFeature(0, hidl_vec<uint8_t>());
-  EXPECT_TRUE(ret.isOk());
-}
-
-
-// The main test class for Equalizer Audio Effect HIDL HAL.
-class EqualizerAudioEffectHidlTest : public AudioEffectHidlTest {
- public:
-  void SetUp() override {
-    AudioEffectHidlTest::SetUp();
-    equalizer = IEqualizerEffect::castFrom(effect);
-    ASSERT_NE(nullptr, equalizer.get());
-  }
-
- protected:
-  Uuid getEffectType() override { return EQUALIZER_EFFECT_TYPE; }
-  void getNumBands(uint16_t* numBands);
-  void getLevelRange(int16_t* minLevel, int16_t* maxLevel);
-  void getBandFrequencyRange(uint16_t band, uint32_t* minFreq,
-                             uint32_t* centerFreq, uint32_t* maxFreq);
-  void getPresetCount(size_t* count);
-
-  sp<IEqualizerEffect> equalizer;
-};
-
-void EqualizerAudioEffectHidlTest::getNumBands(uint16_t* numBands) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = equalizer->getNumBands([&](Result r, uint16_t b) {
-    retval = r;
-    if (retval == Result::OK) {
-      *numBands = b;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-void EqualizerAudioEffectHidlTest::getLevelRange(int16_t* minLevel,
-                                                 int16_t* maxLevel) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret =
-      equalizer->getLevelRange([&](Result r, int16_t min, int16_t max) {
-        retval = r;
-        if (retval == Result::OK) {
-          *minLevel = min;
-          *maxLevel = max;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-void EqualizerAudioEffectHidlTest::getBandFrequencyRange(uint16_t band,
-                                                         uint32_t* minFreq,
-                                                         uint32_t* centerFreq,
-                                                         uint32_t* maxFreq) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = equalizer->getBandFrequencyRange(
-      band, [&](Result r, uint32_t min, uint32_t max) {
-        retval = r;
-        if (retval == Result::OK) {
-          *minFreq = min;
-          *maxFreq = max;
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-  ret = equalizer->getBandCenterFrequency(band, [&](Result r, uint32_t center) {
-    retval = r;
-    if (retval == Result::OK) {
-      *centerFreq = center;
-    }
-  });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-void EqualizerAudioEffectHidlTest::getPresetCount(size_t* count) {
-  Result retval = Result::NOT_INITIALIZED;
-  Return<void> ret = equalizer->getPresetNames(
-      [&](Result r, const hidl_vec<hidl_string>& names) {
-        retval = r;
-        if (retval == Result::OK) {
-          *count = names.size();
-        }
-      });
-  ASSERT_TRUE(ret.isOk());
-  ASSERT_EQ(Result::OK, retval);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetNumBands) {
-  description("Verify that Equalizer effect reports at least one band");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  EXPECT_GT(numBands, 0);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetLevelRange) {
-  description("Verify that Equalizer effect reports adequate band level range");
-  int16_t minLevel = 0x7fff, maxLevel = 0;
-  getLevelRange(&minLevel, &maxLevel);
-  EXPECT_GT(maxLevel, minLevel);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetSetBandLevel) {
-  description(
-      "Verify that manipulating band levels works for Equalizer effect");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  int16_t levels[3]{0x7fff, 0, 0};
-  getLevelRange(&levels[0], &levels[2]);
-  ASSERT_GT(levels[2], levels[0]);
-  levels[1] = (levels[2] + levels[0]) / 2;
-  for (uint16_t i = 0; i < numBands; ++i) {
-    for (size_t j = 0; j < ARRAY_SIZE(levels); ++j) {
-      Return<Result> ret = equalizer->setBandLevel(i, levels[j]);
-      EXPECT_TRUE(ret.isOk());
-      EXPECT_EQ(Result::OK, ret);
-      Result retval = Result::NOT_INITIALIZED;
-      int16_t actualLevel;
-      Return<void> ret2 = equalizer->getBandLevel(i, [&](Result r, int16_t l) {
-        retval = r;
-        if (retval == Result::OK) {
-          actualLevel = l;
-        }
-      });
-      EXPECT_TRUE(ret2.isOk());
-      EXPECT_EQ(Result::OK, retval);
-      EXPECT_EQ(levels[j], actualLevel);
-    }
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetBandCenterFrequencyAndRange) {
-  description(
-      "Verify that Equalizer effect reports adequate band frequency range");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  for (uint16_t i = 0; i < numBands; ++i) {
-    uint32_t minFreq = 0xffffffff, centerFreq = 0xffffffff,
-             maxFreq = 0xffffffff;
-    getBandFrequencyRange(i, &minFreq, &centerFreq, &maxFreq);
-    // Note: NXP legacy implementation reports "1" as upper bound for last band,
-    // so this check fails.
-    EXPECT_GE(maxFreq, centerFreq);
-    EXPECT_GE(centerFreq, minFreq);
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetBandForFrequency) {
-  description(
-      "Verify that Equalizer effect supports GetBandForFrequency correctly");
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  for (uint16_t i = 0; i < numBands; ++i) {
-    uint32_t freqs[3]{0, 0, 0};
-    getBandFrequencyRange(i, &freqs[0], &freqs[1], &freqs[2]);
-    // NXP legacy implementation reports "1" as upper bound for last band, some
-    // of the checks fail.
-    for (size_t j = 0; j < ARRAY_SIZE(freqs); ++j) {
-      if (j == 0) {
-        freqs[j]++;
-      }  // Min frequency is an open interval.
-      Result retval = Result::NOT_INITIALIZED;
-      uint16_t actualBand = numBands + 1;
-      Return<void> ret =
-          equalizer->getBandForFrequency(freqs[j], [&](Result r, uint16_t b) {
-            retval = r;
-            if (retval == Result::OK) {
-              actualBand = b;
-            }
-          });
-      EXPECT_TRUE(ret.isOk());
-      EXPECT_EQ(Result::OK, retval);
-      EXPECT_EQ(i, actualBand) << "Frequency: " << freqs[j];
-    }
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetPresetNames) {
-  description("Verify that Equalizer effect reports at least one preset");
-  size_t presetCount;
-  getPresetCount(&presetCount);
-  EXPECT_GT(presetCount, 0u);
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetSetCurrentPreset) {
-  description(
-      "Verify that manipulating the current preset for Equalizer effect");
-  size_t presetCount;
-  getPresetCount(&presetCount);
-  ASSERT_GT(presetCount, 0u);
-  for (uint16_t i = 0; i < presetCount; ++i) {
-    Return<Result> ret = equalizer->setCurrentPreset(i);
-    EXPECT_TRUE(ret.isOk());
-    EXPECT_EQ(Result::OK, ret);
-    Result retval = Result::NOT_INITIALIZED;
-    uint16_t actualPreset = 0xffff;
-    Return<void> ret2 = equalizer->getCurrentPreset([&](Result r, uint16_t p) {
-      retval = r;
-      if (retval == Result::OK) {
-        actualPreset = p;
-      }
-    });
-    EXPECT_TRUE(ret2.isOk());
-    EXPECT_EQ(Result::OK, retval);
-    EXPECT_EQ(i, actualPreset);
-  }
-}
-
-TEST_F(EqualizerAudioEffectHidlTest, GetSetAllProperties) {
-  description(
-      "Verify that setting band levels and presets works via Get / "
-      "SetAllProperties for Equalizer effect");
-  using AllProperties =
-      android::hardware::audio::effect::V4_0::IEqualizerEffect::AllProperties;
-  uint16_t numBands = 0;
-  getNumBands(&numBands);
-  ASSERT_GT(numBands, 0);
-  AllProperties props;
-  props.bandLevels.resize(numBands);
-  for (size_t i = 0; i < numBands; ++i) {
-    props.bandLevels[i] = 0;
-  }
-
-  AllProperties actualProps;
-  Result retval = Result::NOT_INITIALIZED;
-
-  // Verify setting of the band levels via properties.
-  props.curPreset = -1;
-  Return<Result> ret = equalizer->setAllProperties(props);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  Return<void> ret2 =
-      equalizer->getAllProperties([&](Result r, AllProperties p) {
-        retval = r;
-        if (retval == Result::OK) {
-          actualProps = p;
-        }
-      });
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(props.bandLevels, actualProps.bandLevels);
-
-  // Verify setting of the current preset via properties.
-  props.curPreset = 0;  // Assuming there is at least one preset.
-  ret = equalizer->setAllProperties(props);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  ret2 = equalizer->getAllProperties([&](Result r, AllProperties p) {
-    retval = r;
-    if (retval == Result::OK) {
-      actualProps = p;
-    }
-  });
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(props.curPreset, actualProps.curPreset);
-}
-
-// The main test class for Equalizer Audio Effect HIDL HAL.
-class LoudnessEnhancerAudioEffectHidlTest : public AudioEffectHidlTest {
- public:
-  void SetUp() override {
-    AudioEffectHidlTest::SetUp();
-    enhancer = ILoudnessEnhancerEffect::castFrom(effect);
-    ASSERT_NE(nullptr, enhancer.get());
-  }
-
- protected:
-  Uuid getEffectType() override { return LOUDNESS_ENHANCER_EFFECT_TYPE; }
-
-  sp<ILoudnessEnhancerEffect> enhancer;
-};
-
-TEST_F(LoudnessEnhancerAudioEffectHidlTest, GetSetTargetGain) {
-  description(
-      "Verify that manipulating the target gain works for Loudness Enhancer "
-      "effect");
-  const int32_t gain = 100;
-  Return<Result> ret = enhancer->setTargetGain(gain);
-  EXPECT_TRUE(ret.isOk());
-  EXPECT_EQ(Result::OK, ret);
-  int32_t actualGain = 0;
-  Result retval;
-  Return<void> ret2 = enhancer->getTargetGain([&](Result r, int32_t g) {
-    retval = r;
-    if (retval == Result::OK) {
-      actualGain = g;
-    }
-  });
-  EXPECT_TRUE(ret2.isOk());
-  EXPECT_EQ(Result::OK, retval);
-  EXPECT_EQ(gain, actualGain);
-}
-
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(AudioEffectsFactoryHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    AudioEffectsFactoryHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
diff --git a/audio/effect/4.0/xml/audio_effects_conf.xsd b/audio/effect/4.0/xml/audio_effects_conf.xsd
new file mode 120000
index 0000000..9d85fa7
--- /dev/null
+++ b/audio/effect/4.0/xml/audio_effects_conf.xsd
@@ -0,0 +1 @@
+../../2.0/xml/audio_effects_conf.xsd
\ No newline at end of file
diff --git a/audio/effect/4.0/xml/audio_effects_conf_V4_0.xsd b/audio/effect/4.0/xml/audio_effects_conf_V4_0.xsd
deleted file mode 120000
index 82d569a..0000000
--- a/audio/effect/4.0/xml/audio_effects_conf_V4_0.xsd
+++ /dev/null
@@ -1 +0,0 @@
-../../2.0/xml/audio_effects_conf_V2_0.xsd
\ No newline at end of file
diff --git a/audio/effect/5.0/xml/Android.bp b/audio/effect/5.0/xml/Android.bp
new file mode 100644
index 0000000..967135c
--- /dev/null
+++ b/audio/effect/5.0/xml/Android.bp
@@ -0,0 +1,6 @@
+
+xsd_config {
+    name: "audio_effects_conf",
+    srcs: ["audio_effects_conf.xsd"],
+    package_name: "audio.effects.V5_0",
+}
diff --git a/audio/effect/5.0/xml/api/current.txt b/audio/effect/5.0/xml/api/current.txt
new file mode 100644
index 0000000..ef467c9
--- /dev/null
+++ b/audio/effect/5.0/xml/api/current.txt
@@ -0,0 +1,132 @@
+// Signature format: 2.0
+package audio.effects.V5_0 {
+
+  public class AudioEffectsConf {
+    ctor public AudioEffectsConf();
+    method public audio.effects.V5_0.EffectsType getEffects();
+    method public audio.effects.V5_0.LibrariesType getLibraries();
+    method public audio.effects.V5_0.AudioEffectsConf.Postprocess getPostprocess();
+    method public audio.effects.V5_0.AudioEffectsConf.Preprocess getPreprocess();
+    method public audio.effects.V5_0.VersionType getVersion();
+    method public void setEffects(audio.effects.V5_0.EffectsType);
+    method public void setLibraries(audio.effects.V5_0.LibrariesType);
+    method public void setPostprocess(audio.effects.V5_0.AudioEffectsConf.Postprocess);
+    method public void setPreprocess(audio.effects.V5_0.AudioEffectsConf.Preprocess);
+    method public void setVersion(audio.effects.V5_0.VersionType);
+  }
+
+  public static class AudioEffectsConf.Postprocess {
+    ctor public AudioEffectsConf.Postprocess();
+    method public java.util.List<audio.effects.V5_0.StreamPostprocessType> getStream();
+  }
+
+  public static class AudioEffectsConf.Preprocess {
+    ctor public AudioEffectsConf.Preprocess();
+    method public java.util.List<audio.effects.V5_0.StreamPreprocessType> getStream();
+  }
+
+  public class EffectImplType {
+    ctor public EffectImplType();
+    method public String getLibrary();
+    method public String getUuid();
+    method public void setLibrary(String);
+    method public void setUuid(String);
+  }
+
+  public class EffectProxyType extends audio.effects.V5_0.EffectType {
+    ctor public EffectProxyType();
+    method public audio.effects.V5_0.EffectImplType getLibhw();
+    method public audio.effects.V5_0.EffectImplType getLibsw();
+    method public void setLibhw(audio.effects.V5_0.EffectImplType);
+    method public void setLibsw(audio.effects.V5_0.EffectImplType);
+  }
+
+  public class EffectType extends audio.effects.V5_0.EffectImplType {
+    ctor public EffectType();
+    method public String getName();
+    method public void setName(String);
+  }
+
+  public class EffectsType {
+    ctor public EffectsType();
+    method public java.util.List<audio.effects.V5_0.EffectProxyType> getEffectProxy_optional();
+    method public java.util.List<audio.effects.V5_0.EffectType> getEffect_optional();
+  }
+
+  public class LibrariesType {
+    ctor public LibrariesType();
+    method public java.util.List<audio.effects.V5_0.LibrariesType.Library> getLibrary();
+  }
+
+  public static class LibrariesType.Library {
+    ctor public LibrariesType.Library();
+    method public String getName();
+    method public String getPath();
+    method public void setName(String);
+    method public void setPath(String);
+  }
+
+  public enum StreamInputType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V5_0.StreamInputType camcorder;
+    enum_constant public static final audio.effects.V5_0.StreamInputType mic;
+    enum_constant public static final audio.effects.V5_0.StreamInputType unprocessed;
+    enum_constant public static final audio.effects.V5_0.StreamInputType voice_call;
+    enum_constant public static final audio.effects.V5_0.StreamInputType voice_communication;
+    enum_constant public static final audio.effects.V5_0.StreamInputType voice_downlink;
+    enum_constant public static final audio.effects.V5_0.StreamInputType voice_performance;
+    enum_constant public static final audio.effects.V5_0.StreamInputType voice_recognition;
+    enum_constant public static final audio.effects.V5_0.StreamInputType voice_uplink;
+  }
+
+  public enum StreamOutputType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V5_0.StreamOutputType alarm;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType bluetooth_sco;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType dtmf;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType enforced_audible;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType music;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType notification;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType ring;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType system;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType tts;
+    enum_constant public static final audio.effects.V5_0.StreamOutputType voice_call;
+  }
+
+  public class StreamPostprocessType extends audio.effects.V5_0.StreamProcessingType {
+    ctor public StreamPostprocessType();
+    method public audio.effects.V5_0.StreamOutputType getType();
+    method public void setType(audio.effects.V5_0.StreamOutputType);
+  }
+
+  public class StreamPreprocessType extends audio.effects.V5_0.StreamProcessingType {
+    ctor public StreamPreprocessType();
+    method public audio.effects.V5_0.StreamInputType getType();
+    method public void setType(audio.effects.V5_0.StreamInputType);
+  }
+
+  public class StreamProcessingType {
+    ctor public StreamProcessingType();
+    method public java.util.List<audio.effects.V5_0.StreamProcessingType.Apply> getApply();
+  }
+
+  public static class StreamProcessingType.Apply {
+    ctor public StreamProcessingType.Apply();
+    method public String getEffect();
+    method public void setEffect(String);
+  }
+
+  public enum VersionType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V5_0.VersionType _2_0;
+  }
+
+  public class XmlParser {
+    ctor public XmlParser();
+    method public static audio.effects.V5_0.AudioEffectsConf read(java.io.InputStream) throws javax.xml.datatype.DatatypeConfigurationException, java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static String readText(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static void skip(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+  }
+
+}
+
diff --git a/audio/effect/5.0/xml/api/last_current.txt b/audio/effect/5.0/xml/api/last_current.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/effect/5.0/xml/api/last_current.txt
diff --git a/audio/effect/5.0/xml/api/last_removed.txt b/audio/effect/5.0/xml/api/last_removed.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/effect/5.0/xml/api/last_removed.txt
diff --git a/audio/effect/5.0/xml/api/removed.txt b/audio/effect/5.0/xml/api/removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/audio/effect/5.0/xml/api/removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/audio/effect/all-versions/default/AcousticEchoCancelerEffect.cpp b/audio/effect/all-versions/default/AcousticEchoCancelerEffect.cpp
new file mode 100644
index 0000000..137ea24
--- /dev/null
+++ b/audio/effect/all-versions/default/AcousticEchoCancelerEffect.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AEC_Effect_HAL"
+
+#include "AcousticEchoCancelerEffect.h"
+
+#include <android/log.h>
+#include <system/audio_effects/effect_aec.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+AcousticEchoCancelerEffect::AcousticEchoCancelerEffect(effect_handle_t handle)
+    : mEffect(new Effect(handle)) {}
+
+AcousticEchoCancelerEffect::~AcousticEchoCancelerEffect() {}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> AcousticEchoCancelerEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> AcousticEchoCancelerEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> AcousticEchoCancelerEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> AcousticEchoCancelerEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> AcousticEchoCancelerEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> AcousticEchoCancelerEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> AcousticEchoCancelerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                         setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> AcousticEchoCancelerEffect::volumeChangeNotification(
+    const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> AcousticEchoCancelerEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> AcousticEchoCancelerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> AcousticEchoCancelerEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> AcousticEchoCancelerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setAuxChannelsConfig(
+    const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> AcousticEchoCancelerEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> AcousticEchoCancelerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> AcousticEchoCancelerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                             const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> AcousticEchoCancelerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                                 uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                                        const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> AcousticEchoCancelerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                                      uint32_t valueMaxSize,
+                                                      getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> AcousticEchoCancelerEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> AcousticEchoCancelerEffect::getCurrentConfigForFeature(
+    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> AcousticEchoCancelerEffect::setCurrentConfigForFeature(
+    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> AcousticEchoCancelerEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> AcousticEchoCancelerEffect::debug(const hidl_handle& fd,
+                                               const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IAcousticEchoCancelerEffect
+// follow.
+Return<Result> AcousticEchoCancelerEffect::setEchoDelay(uint32_t echoDelayMs) {
+    return mEffect->setParam(AEC_PARAM_ECHO_DELAY, echoDelayMs);
+}
+
+Return<void> AcousticEchoCancelerEffect::getEchoDelay(getEchoDelay_cb _hidl_cb) {
+    return mEffect->getIntegerParam(AEC_PARAM_ECHO_DELAY, _hidl_cb);
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/AcousticEchoCancelerEffect.h b/audio/effect/all-versions/default/AcousticEchoCancelerEffect.h
new file mode 100644
index 0000000..971f64d
--- /dev/null
+++ b/audio/effect/all-versions/default/AcousticEchoCancelerEffect.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_ACOUSTICECHOCANCELEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_ACOUSTICECHOCANCELEREFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IAcousticEchoCancelerEffect.h)
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::effect::CPP_VERSION::IAcousticEchoCancelerEffect;
+using ::android::hardware::audio::effect::CPP_VERSION::Result;
+
+struct AcousticEchoCancelerEffect : public IAcousticEchoCancelerEffect {
+    explicit AcousticEchoCancelerEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from
+    // ::android::hardware::audio::effect::CPP_VERSION::IAcousticEchoCancelerEffect follow.
+    Return<Result> setEchoDelay(uint32_t echoDelayMs) override;
+    Return<void> getEchoDelay(getEchoDelay_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~AcousticEchoCancelerEffect();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_ACOUSTICECHOCANCELEREFFECT_H
diff --git a/audio/effect/all-versions/default/Android.bp b/audio/effect/all-versions/default/Android.bp
index ed2a093..f23a463 100644
--- a/audio/effect/all-versions/default/Android.bp
+++ b/audio/effect/all-versions/default/Android.bp
@@ -1,10 +1,25 @@
-cc_library_headers {
-    name: "android.hardware.audio.effect@all-versions-impl",
+cc_defaults {
+    name: "android.hardware.audio.effect-impl_default",
     defaults: ["hidl_defaults"],
     vendor: true,
     relative_install_path: "hw",
-
-    export_include_dirs: ["include"],
+    srcs: [
+        "AcousticEchoCancelerEffect.cpp",
+        "AudioBufferManager.cpp",
+        "AutomaticGainControlEffect.cpp",
+        "BassBoostEffect.cpp",
+        "Conversions.cpp",
+        "DownmixEffect.cpp",
+        "Effect.cpp",
+        "EffectsFactory.cpp",
+        "EnvironmentalReverbEffect.cpp",
+        "EqualizerEffect.cpp",
+        "LoudnessEnhancerEffect.cpp",
+        "NoiseSuppressionEffect.cpp",
+        "PresetReverbEffect.cpp",
+        "VirtualizerEffect.cpp",
+        "VisualizerEffect.cpp",
+    ],
 
     shared_libs: [
         "libbase",
@@ -21,11 +36,59 @@
     ],
 
     header_libs: [
+        "android.hardware.audio.common.util@all-versions",
         "libaudio_system_headers",
         "libaudioclient_headers",
         "libeffects_headers",
         "libhardware_headers",
         "libmedia_headers",
-        "android.hardware.audio.common.util@all-versions",
     ],
 }
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@2.0-impl",
+    defaults: ["android.hardware.audio.effect-impl_default"],
+    shared_libs: [
+        "android.hardware.audio.common@2.0",
+        "android.hardware.audio.common@2.0-util",
+        "android.hardware.audio.effect@2.0",
+    ],
+
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@4.0-impl",
+    defaults: ["android.hardware.audio.effect-impl_default"],
+    shared_libs: [
+        "android.hardware.audio.common@4.0",
+        "android.hardware.audio.common@4.0-util",
+        "android.hardware.audio.effect@4.0",
+    ],
+
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@5.0-impl",
+    defaults: ["android.hardware.audio.effect-impl_default"],
+    shared_libs: [
+        "android.hardware.audio.common@5.0",
+        "android.hardware.audio.common@5.0-util",
+        "android.hardware.audio.effect@5.0",
+    ],
+
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
diff --git a/audio/effect/all-versions/default/AudioBufferManager.cpp b/audio/effect/all-versions/default/AudioBufferManager.cpp
new file mode 100644
index 0000000..9a638fd
--- /dev/null
+++ b/audio/effect/all-versions/default/AudioBufferManager.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "AudioBufferManager.h"
+
+#include <atomic>
+
+#include <hidlmemory/mapping.h>
+
+namespace android {
+
+ANDROID_SINGLETON_STATIC_INSTANCE(AudioBufferManager);
+
+bool AudioBufferManager::wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper) {
+    // Check if we have this buffer already
+    std::lock_guard<std::mutex> lock(mLock);
+    ssize_t idx = mBuffers.indexOfKey(buffer.id);
+    if (idx >= 0) {
+        *wrapper = mBuffers[idx].promote();
+        if (*wrapper != nullptr) {
+            (*wrapper)->getHalBuffer()->frameCount = buffer.frameCount;
+            return true;
+        }
+        mBuffers.removeItemsAt(idx);
+    }
+    // Need to create and init a new AudioBufferWrapper.
+    sp<AudioBufferWrapper> tempBuffer(new AudioBufferWrapper(buffer));
+    if (!tempBuffer->init()) return false;
+    *wrapper = tempBuffer;
+    mBuffers.add(buffer.id, *wrapper);
+    return true;
+}
+
+void AudioBufferManager::removeEntry(uint64_t id) {
+    std::lock_guard<std::mutex> lock(mLock);
+    ssize_t idx = mBuffers.indexOfKey(id);
+    if (idx >= 0) mBuffers.removeItemsAt(idx);
+}
+
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+AudioBufferWrapper::AudioBufferWrapper(const AudioBuffer& buffer)
+    : mHidlBuffer(buffer), mHalBuffer{0, {nullptr}} {}
+
+AudioBufferWrapper::~AudioBufferWrapper() {
+    AudioBufferManager::getInstance().removeEntry(mHidlBuffer.id);
+}
+
+bool AudioBufferWrapper::init() {
+    if (mHalBuffer.raw != nullptr) {
+        ALOGE("An attempt to init AudioBufferWrapper twice");
+        return false;
+    }
+    mHidlMemory = mapMemory(mHidlBuffer.data);
+    if (mHidlMemory == nullptr) {
+        ALOGE("Could not map HIDL memory to IMemory");
+        return false;
+    }
+    mHalBuffer.raw = static_cast<void*>(mHidlMemory->getPointer());
+    if (mHalBuffer.raw == nullptr) {
+        ALOGE("IMemory buffer pointer is null");
+        return false;
+    }
+    mHalBuffer.frameCount = mHidlBuffer.frameCount;
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/AudioBufferManager.h b/audio/effect/all-versions/default/AudioBufferManager.h
new file mode 100644
index 0000000..8b956cd
--- /dev/null
+++ b/audio/effect/all-versions/default/AudioBufferManager.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_AUDIO_BUFFER_MANAGER_H_
+#define ANDROID_HARDWARE_AUDIO_EFFECT_AUDIO_BUFFER_MANAGER_H_
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/types.h)
+
+#include <mutex>
+
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <system/audio_effect.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/Singleton.h>
+
+using ::android::hardware::audio::effect::CPP_VERSION::AudioBuffer;
+using ::android::hidl::memory::V1_0::IMemory;
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+class AudioBufferWrapper : public RefBase {
+   public:
+    explicit AudioBufferWrapper(const AudioBuffer& buffer);
+    virtual ~AudioBufferWrapper();
+    bool init();
+    audio_buffer_t* getHalBuffer() { return &mHalBuffer; }
+
+   private:
+    AudioBufferWrapper(const AudioBufferWrapper&) = delete;
+    void operator=(AudioBufferWrapper) = delete;
+
+    AudioBuffer mHidlBuffer;
+    sp<IMemory> mHidlMemory;
+    audio_buffer_t mHalBuffer;
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+using ::android::hardware::audio::effect::CPP_VERSION::implementation::AudioBufferWrapper;
+
+namespace android {
+
+// This class needs to be in 'android' ns because Singleton macros require that.
+class AudioBufferManager : public Singleton<AudioBufferManager> {
+   public:
+    bool wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper);
+
+   private:
+    friend class hardware::audio::effect::CPP_VERSION::implementation::AudioBufferWrapper;
+
+    // Called by AudioBufferWrapper.
+    void removeEntry(uint64_t id);
+
+    std::mutex mLock;
+    KeyedVector<uint64_t, wp<AudioBufferWrapper>> mBuffers;
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_AUDIO_BUFFER_MANAGER_H_
diff --git a/audio/effect/all-versions/default/AutomaticGainControlEffect.cpp b/audio/effect/all-versions/default/AutomaticGainControlEffect.cpp
new file mode 100644
index 0000000..655a4cd
--- /dev/null
+++ b/audio/effect/all-versions/default/AutomaticGainControlEffect.cpp
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AGC_Effect_HAL"
+
+#include "AutomaticGainControlEffect.h"
+
+#include <android/log.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+AutomaticGainControlEffect::AutomaticGainControlEffect(effect_handle_t handle)
+    : mEffect(new Effect(handle)) {}
+
+AutomaticGainControlEffect::~AutomaticGainControlEffect() {}
+
+void AutomaticGainControlEffect::propertiesFromHal(
+    const t_agc_settings& halProperties, IAutomaticGainControlEffect::AllProperties* properties) {
+    properties->targetLevelMb = halProperties.targetLevel;
+    properties->compGainMb = halProperties.compGain;
+    properties->limiterEnabled = halProperties.limiterEnabled;
+}
+
+void AutomaticGainControlEffect::propertiesToHal(
+    const IAutomaticGainControlEffect::AllProperties& properties, t_agc_settings* halProperties) {
+    halProperties->targetLevel = properties.targetLevelMb;
+    halProperties->compGain = properties.compGainMb;
+    halProperties->limiterEnabled = properties.limiterEnabled;
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> AutomaticGainControlEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> AutomaticGainControlEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> AutomaticGainControlEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> AutomaticGainControlEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> AutomaticGainControlEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> AutomaticGainControlEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> AutomaticGainControlEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                         setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::volumeChangeNotification(
+    const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> AutomaticGainControlEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> AutomaticGainControlEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> AutomaticGainControlEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> AutomaticGainControlEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> AutomaticGainControlEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> AutomaticGainControlEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> AutomaticGainControlEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setAuxChannelsConfig(
+    const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> AutomaticGainControlEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> AutomaticGainControlEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> AutomaticGainControlEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> AutomaticGainControlEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                             const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> AutomaticGainControlEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                                 uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                                        const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> AutomaticGainControlEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                                      uint32_t valueMaxSize,
+                                                      getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> AutomaticGainControlEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> AutomaticGainControlEffect::getCurrentConfigForFeature(
+    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setCurrentConfigForFeature(
+    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> AutomaticGainControlEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> AutomaticGainControlEffect::debug(const hidl_handle& fd,
+                                               const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IAutomaticGainControlEffect
+// follow.
+Return<Result> AutomaticGainControlEffect::setTargetLevel(int16_t targetLevelMb) {
+    return mEffect->setParam(AGC_PARAM_TARGET_LEVEL, targetLevelMb);
+}
+
+Return<void> AutomaticGainControlEffect::getTargetLevel(getTargetLevel_cb _hidl_cb) {
+    return mEffect->getIntegerParam(AGC_PARAM_TARGET_LEVEL, _hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setCompGain(int16_t compGainMb) {
+    return mEffect->setParam(AGC_PARAM_COMP_GAIN, compGainMb);
+}
+
+Return<void> AutomaticGainControlEffect::getCompGain(getCompGain_cb _hidl_cb) {
+    return mEffect->getIntegerParam(AGC_PARAM_COMP_GAIN, _hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setLimiterEnabled(bool enabled) {
+    return mEffect->setParam(AGC_PARAM_LIMITER_ENA, enabled);
+}
+
+Return<void> AutomaticGainControlEffect::isLimiterEnabled(isLimiterEnabled_cb _hidl_cb) {
+    return mEffect->getIntegerParam(AGC_PARAM_LIMITER_ENA, _hidl_cb);
+}
+
+Return<Result> AutomaticGainControlEffect::setAllProperties(
+    const IAutomaticGainControlEffect::AllProperties& properties) {
+    t_agc_settings halProperties;
+    propertiesToHal(properties, &halProperties);
+    return mEffect->setParam(AGC_PARAM_PROPERTIES, halProperties);
+}
+
+Return<void> AutomaticGainControlEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
+    t_agc_settings halProperties;
+    Result retval = mEffect->getParam(AGC_PARAM_PROPERTIES, halProperties);
+    AllProperties properties;
+    propertiesFromHal(halProperties, &properties);
+    _hidl_cb(retval, properties);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/AutomaticGainControlEffect.h b/audio/effect/all-versions/default/AutomaticGainControlEffect.h
new file mode 100644
index 0000000..67e260a
--- /dev/null
+++ b/audio/effect/all-versions/default/AutomaticGainControlEffect.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_AUTOMATICGAINCONTROLEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_AUTOMATICGAINCONTROLEFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IAutomaticGainControlEffect.h)
+
+#include "Effect.h"
+
+#include <system/audio_effects/effect_agc.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::effect::CPP_VERSION::IAutomaticGainControlEffect;
+using ::android::hardware::audio::effect::CPP_VERSION::Result;
+
+struct AutomaticGainControlEffect : public IAutomaticGainControlEffect {
+    explicit AutomaticGainControlEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from
+    // ::android::hardware::audio::effect::CPP_VERSION::IAutomaticGainControlEffect follow.
+    Return<Result> setTargetLevel(int16_t targetLevelMb) override;
+    Return<void> getTargetLevel(getTargetLevel_cb _hidl_cb) override;
+    Return<Result> setCompGain(int16_t compGainMb) override;
+    Return<void> getCompGain(getCompGain_cb _hidl_cb) override;
+    Return<Result> setLimiterEnabled(bool enabled) override;
+    Return<void> isLimiterEnabled(isLimiterEnabled_cb _hidl_cb) override;
+    Return<Result> setAllProperties(
+        const IAutomaticGainControlEffect::AllProperties& properties) override;
+    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~AutomaticGainControlEffect();
+
+    void propertiesFromHal(const t_agc_settings& halProperties,
+                           IAutomaticGainControlEffect::AllProperties* properties);
+    void propertiesToHal(const IAutomaticGainControlEffect::AllProperties& properties,
+                         t_agc_settings* halProperties);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_AUTOMATICGAINCONTROLEFFECT_H
diff --git a/audio/effect/all-versions/default/BassBoostEffect.cpp b/audio/effect/all-versions/default/BassBoostEffect.cpp
new file mode 100644
index 0000000..04fd486
--- /dev/null
+++ b/audio/effect/all-versions/default/BassBoostEffect.cpp
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BassBoost_HAL"
+
+#include "BassBoostEffect.h"
+
+#include <android/log.h>
+#include <system/audio_effects/effect_bassboost.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+BassBoostEffect::BassBoostEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
+
+BassBoostEffect::~BassBoostEffect() {}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> BassBoostEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> BassBoostEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> BassBoostEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> BassBoostEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> BassBoostEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> BassBoostEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> BassBoostEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                              setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> BassBoostEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> BassBoostEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> BassBoostEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> BassBoostEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> BassBoostEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> BassBoostEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> BassBoostEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> BassBoostEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> BassBoostEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> BassBoostEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> BassBoostEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> BassBoostEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> BassBoostEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> BassBoostEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                  const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> BassBoostEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                      uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> BassBoostEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                             const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> BassBoostEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                           uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> BassBoostEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> BassBoostEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                                         getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> BassBoostEffect::setCurrentConfigForFeature(uint32_t featureId,
+                                                           const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> BassBoostEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> BassBoostEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IBassBoostEffect follow.
+Return<void> BassBoostEffect::isStrengthSupported(isStrengthSupported_cb _hidl_cb) {
+    return mEffect->getIntegerParam(BASSBOOST_PARAM_STRENGTH_SUPPORTED, _hidl_cb);
+}
+
+Return<Result> BassBoostEffect::setStrength(uint16_t strength) {
+    return mEffect->setParam(BASSBOOST_PARAM_STRENGTH, strength);
+}
+
+Return<void> BassBoostEffect::getStrength(getStrength_cb _hidl_cb) {
+    return mEffect->getIntegerParam(BASSBOOST_PARAM_STRENGTH, _hidl_cb);
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/BassBoostEffect.h b/audio/effect/all-versions/default/BassBoostEffect.h
new file mode 100644
index 0000000..b89bb22
--- /dev/null
+++ b/audio/effect/all-versions/default/BassBoostEffect.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_BASSBOOSTEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_BASSBOOSTEFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IBassBoostEffect.h)
+
+#include <hidl/MQDescriptor.h>
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::effect::CPP_VERSION::IBassBoostEffect;
+using ::android::hardware::audio::effect::CPP_VERSION::Result;
+
+struct BassBoostEffect : public IBassBoostEffect {
+    explicit BassBoostEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IBassBoostEffect follow.
+    Return<void> isStrengthSupported(isStrengthSupported_cb _hidl_cb) override;
+    Return<Result> setStrength(uint16_t strength) override;
+    Return<void> getStrength(getStrength_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~BassBoostEffect();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_BASSBOOSTEFFECT_H
diff --git a/audio/effect/all-versions/default/Conversions.cpp b/audio/effect/all-versions/default/Conversions.cpp
new file mode 100644
index 0000000..b1c0b0d
--- /dev/null
+++ b/audio/effect/all-versions/default/Conversions.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Conversions.h"
+#include "HidlUtils.h"
+
+#include <memory.h>
+#include <stdio.h>
+
+#include <common/all-versions/VersionUtils.h>
+
+using ::android::hardware::audio::common::utils::EnumBitfield;
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+
+void effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
+                             EffectDescriptor* descriptor) {
+    HidlUtils::uuidFromHal(halDescriptor.type, &descriptor->type);
+    HidlUtils::uuidFromHal(halDescriptor.uuid, &descriptor->uuid);
+    descriptor->flags = EnumBitfield<EffectFlags>(halDescriptor.flags);
+    descriptor->cpuLoad = halDescriptor.cpuLoad;
+    descriptor->memoryUsage = halDescriptor.memoryUsage;
+    memcpy(descriptor->name.data(), halDescriptor.name, descriptor->name.size());
+    memcpy(descriptor->implementor.data(), halDescriptor.implementor,
+           descriptor->implementor.size());
+}
+
+std::string uuidToString(const effect_uuid_t& halUuid) {
+    char str[64];
+    snprintf(str, sizeof(str), "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", halUuid.timeLow,
+             halUuid.timeMid, halUuid.timeHiAndVersion, halUuid.clockSeq, halUuid.node[0],
+             halUuid.node[1], halUuid.node[2], halUuid.node[3], halUuid.node[4], halUuid.node[5]);
+    return str;
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/Conversions.h b/audio/effect/all-versions/default/Conversions.h
new file mode 100644
index 0000000..75aab24
--- /dev/null
+++ b/audio/effect/all-versions/default/Conversions.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_CONVERSIONS_H_
+#define ANDROID_HARDWARE_AUDIO_EFFECT_CONVERSIONS_H_
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/types.h)
+
+#include <string>
+
+#include <system/audio_effect.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::hardware::audio::effect::CPP_VERSION::EffectDescriptor;
+
+void effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
+                             EffectDescriptor* descriptor);
+std::string uuidToString(const effect_uuid_t& halUuid);
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_CONVERSIONS_H_
diff --git a/audio/effect/all-versions/default/DownmixEffect.cpp b/audio/effect/all-versions/default/DownmixEffect.cpp
new file mode 100644
index 0000000..c001a5f
--- /dev/null
+++ b/audio/effect/all-versions/default/DownmixEffect.cpp
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Downmix_HAL"
+
+#include "DownmixEffect.h"
+
+#include <android/log.h>
+#include <system/audio_effects/effect_downmix.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+DownmixEffect::DownmixEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
+
+DownmixEffect::~DownmixEffect() {}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> DownmixEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> DownmixEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> DownmixEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> DownmixEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> DownmixEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> DownmixEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> DownmixEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                            setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> DownmixEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> DownmixEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> DownmixEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> DownmixEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> DownmixEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> DownmixEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> DownmixEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> DownmixEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> DownmixEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> DownmixEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> DownmixEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> DownmixEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> DownmixEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> DownmixEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> DownmixEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                    uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> DownmixEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                           const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> DownmixEffect::getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                                         getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> DownmixEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> DownmixEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                                       getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> DownmixEffect::setCurrentConfigForFeature(uint32_t featureId,
+                                                         const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> DownmixEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> DownmixEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IDownmixEffect follow.
+Return<Result> DownmixEffect::setType(IDownmixEffect::Type preset) {
+    return mEffect->setParam(DOWNMIX_PARAM_TYPE, static_cast<downmix_type_t>(preset));
+}
+
+Return<void> DownmixEffect::getType(getType_cb _hidl_cb) {
+    downmix_type_t halPreset = DOWNMIX_TYPE_INVALID;
+    Result retval = mEffect->getParam(DOWNMIX_PARAM_TYPE, halPreset);
+    _hidl_cb(retval, Type(halPreset));
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/DownmixEffect.h b/audio/effect/all-versions/default/DownmixEffect.h
new file mode 100644
index 0000000..40e462e
--- /dev/null
+++ b/audio/effect/all-versions/default/DownmixEffect.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_DOWNMIXEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_DOWNMIXEFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IDownmixEffect.h)
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::effect::CPP_VERSION::IDownmixEffect;
+using ::android::hardware::audio::effect::CPP_VERSION::Result;
+
+struct DownmixEffect : public IDownmixEffect {
+    explicit DownmixEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IDownmixEffect follow.
+    Return<Result> setType(IDownmixEffect::Type preset) override;
+    Return<void> getType(getType_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~DownmixEffect();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_DOWNMIXEFFECT_H
diff --git a/audio/effect/all-versions/default/Effect.cpp b/audio/effect/all-versions/default/Effect.cpp
new file mode 100644
index 0000000..3c0d878
--- /dev/null
+++ b/audio/effect/all-versions/default/Effect.cpp
@@ -0,0 +1,726 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <memory.h>
+
+#define LOG_TAG "EffectHAL"
+#define ATRACE_TAG ATRACE_TAG_AUDIO
+
+#include "Conversions.h"
+#include "Effect.h"
+#include "common/all-versions/default/EffectMap.h"
+
+#include <memory.h>
+
+#define ATRACE_TAG ATRACE_TAG_AUDIO
+
+#include <android/log.h>
+#include <media/EffectsFactoryApi.h>
+#include <utils/Trace.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioChannelBitfield;
+
+namespace {
+
+class ProcessThread : public Thread {
+   public:
+    // ProcessThread's lifespan never exceeds Effect's lifespan.
+    ProcessThread(std::atomic<bool>* stop, effect_handle_t effect,
+                  std::atomic<audio_buffer_t*>* inBuffer, std::atomic<audio_buffer_t*>* outBuffer,
+                  Effect::StatusMQ* statusMQ, EventFlag* efGroup)
+        : Thread(false /*canCallJava*/),
+          mStop(stop),
+          mEffect(effect),
+          mHasProcessReverse((*mEffect)->process_reverse != NULL),
+          mInBuffer(inBuffer),
+          mOutBuffer(outBuffer),
+          mStatusMQ(statusMQ),
+          mEfGroup(efGroup) {}
+    virtual ~ProcessThread() {}
+
+   private:
+    std::atomic<bool>* mStop;
+    effect_handle_t mEffect;
+    bool mHasProcessReverse;
+    std::atomic<audio_buffer_t*>* mInBuffer;
+    std::atomic<audio_buffer_t*>* mOutBuffer;
+    Effect::StatusMQ* mStatusMQ;
+    EventFlag* mEfGroup;
+
+    bool threadLoop() override;
+};
+
+bool ProcessThread::threadLoop() {
+    // This implementation doesn't return control back to the Thread until it decides to stop,
+    // as the Thread uses mutexes, and this can lead to priority inversion.
+    while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
+        uint32_t efState = 0;
+        mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_ALL), &efState);
+        if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_ALL)) ||
+            (efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_QUIT))) {
+            continue;  // Nothing to do or time to quit.
+        }
+        Result retval = Result::OK;
+        if (efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_REVERSE) &&
+            !mHasProcessReverse) {
+            retval = Result::NOT_SUPPORTED;
+        }
+
+        if (retval == Result::OK) {
+            // affects both buffer pointers and their contents.
+            std::atomic_thread_fence(std::memory_order_acquire);
+            int32_t processResult;
+            audio_buffer_t* inBuffer =
+                std::atomic_load_explicit(mInBuffer, std::memory_order_relaxed);
+            audio_buffer_t* outBuffer =
+                std::atomic_load_explicit(mOutBuffer, std::memory_order_relaxed);
+            if (inBuffer != nullptr && outBuffer != nullptr) {
+                if (efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS)) {
+                    processResult = (*mEffect)->process(mEffect, inBuffer, outBuffer);
+                } else {
+                    processResult = (*mEffect)->process_reverse(mEffect, inBuffer, outBuffer);
+                }
+                std::atomic_thread_fence(std::memory_order_release);
+            } else {
+                ALOGE("processing buffers were not set before calling 'process'");
+                processResult = -ENODEV;
+            }
+            switch (processResult) {
+                case 0:
+                    retval = Result::OK;
+                    break;
+                case -ENODATA:
+                    retval = Result::INVALID_STATE;
+                    break;
+                case -EINVAL:
+                    retval = Result::INVALID_ARGUMENTS;
+                    break;
+                default:
+                    retval = Result::NOT_INITIALIZED;
+            }
+        }
+        if (!mStatusMQ->write(&retval)) {
+            ALOGW("status message queue write failed");
+        }
+        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING));
+    }
+
+    return false;
+}
+
+}  // namespace
+
+// static
+const char* Effect::sContextResultOfCommand = "returned status";
+const char* Effect::sContextCallToCommand = "error";
+const char* Effect::sContextCallFunction = sContextCallToCommand;
+
+Effect::Effect(effect_handle_t handle)
+    : mIsClosed(false), mHandle(handle), mEfGroup(nullptr), mStopProcessThread(false) {}
+
+Effect::~Effect() {
+    ATRACE_CALL();
+    close();
+    if (mProcessThread.get()) {
+        ATRACE_NAME("mProcessThread->join");
+        status_t status = mProcessThread->join();
+        ALOGE_IF(status, "processing thread exit error: %s", strerror(-status));
+    }
+    if (mEfGroup) {
+        status_t status = EventFlag::deleteEventFlag(&mEfGroup);
+        ALOGE_IF(status, "processing MQ event flag deletion error: %s", strerror(-status));
+    }
+    mInBuffer.clear();
+    mOutBuffer.clear();
+    int status = EffectRelease(mHandle);
+    ALOGW_IF(status, "Error releasing effect %p: %s", mHandle, strerror(-status));
+    EffectMap::getInstance().remove(mHandle);
+    mHandle = 0;
+}
+
+// static
+template <typename T>
+size_t Effect::alignedSizeIn(size_t s) {
+    return (s + sizeof(T) - 1) / sizeof(T);
+}
+
+// static
+template <typename T>
+std::unique_ptr<uint8_t[]> Effect::hidlVecToHal(const hidl_vec<T>& vec, uint32_t* halDataSize) {
+    // Due to bugs in HAL, they may attempt to write into the provided
+    // input buffer. The original binder buffer is r/o, thus it is needed
+    // to create a r/w version.
+    *halDataSize = vec.size() * sizeof(T);
+    std::unique_ptr<uint8_t[]> halData(new uint8_t[*halDataSize]);
+    memcpy(&halData[0], &vec[0], *halDataSize);
+    return halData;
+}
+
+// static
+void Effect::effectAuxChannelsConfigFromHal(const channel_config_t& halConfig,
+                                            EffectAuxChannelsConfig* config) {
+    config->mainChannels = AudioChannelBitfield(halConfig.main_channels);
+    config->auxChannels = AudioChannelBitfield(halConfig.aux_channels);
+}
+
+// static
+void Effect::effectAuxChannelsConfigToHal(const EffectAuxChannelsConfig& config,
+                                          channel_config_t* halConfig) {
+    halConfig->main_channels = static_cast<audio_channel_mask_t>(config.mainChannels);
+    halConfig->aux_channels = static_cast<audio_channel_mask_t>(config.auxChannels);
+}
+
+// static
+void Effect::effectBufferConfigFromHal(const buffer_config_t& halConfig,
+                                       EffectBufferConfig* config) {
+    config->buffer.id = 0;
+    config->buffer.frameCount = 0;
+    config->samplingRateHz = halConfig.samplingRate;
+    config->channels = AudioChannelBitfield(halConfig.channels);
+    config->format = AudioFormat(halConfig.format);
+    config->accessMode = EffectBufferAccess(halConfig.accessMode);
+    config->mask = static_cast<decltype(config->mask)>(halConfig.mask);
+}
+
+// static
+void Effect::effectBufferConfigToHal(const EffectBufferConfig& config, buffer_config_t* halConfig) {
+    // Note: setting the buffers directly is considered obsolete. They need to be set
+    // using 'setProcessBuffers'.
+    halConfig->buffer.frameCount = 0;
+    halConfig->buffer.raw = NULL;
+    halConfig->samplingRate = config.samplingRateHz;
+    halConfig->channels = static_cast<uint32_t>(config.channels);
+    // Note: The framework code does not use BP.
+    halConfig->bufferProvider.cookie = NULL;
+    halConfig->bufferProvider.getBuffer = NULL;
+    halConfig->bufferProvider.releaseBuffer = NULL;
+    halConfig->format = static_cast<uint8_t>(config.format);
+    halConfig->accessMode = static_cast<uint8_t>(config.accessMode);
+    halConfig->mask = static_cast<uint8_t>(config.mask);
+}
+
+// static
+void Effect::effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config) {
+    effectBufferConfigFromHal(halConfig.inputCfg, &config->inputCfg);
+    effectBufferConfigFromHal(halConfig.outputCfg, &config->outputCfg);
+}
+
+// static
+void Effect::effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig) {
+    effectBufferConfigToHal(config.inputCfg, &halConfig->inputCfg);
+    effectBufferConfigToHal(config.outputCfg, &halConfig->outputCfg);
+}
+
+// static
+void Effect::effectOffloadParamToHal(const EffectOffloadParameter& offload,
+                                     effect_offload_param_t* halOffload) {
+    halOffload->isOffload = offload.isOffload;
+    halOffload->ioHandle = offload.ioHandle;
+}
+
+// static
+std::vector<uint8_t> Effect::parameterToHal(uint32_t paramSize, const void* paramData,
+                                            uint32_t valueSize, const void** valueData) {
+    size_t valueOffsetFromData = alignedSizeIn<uint32_t>(paramSize) * sizeof(uint32_t);
+    size_t halParamBufferSize = sizeof(effect_param_t) + valueOffsetFromData + valueSize;
+    std::vector<uint8_t> halParamBuffer(halParamBufferSize, 0);
+    effect_param_t* halParam = reinterpret_cast<effect_param_t*>(&halParamBuffer[0]);
+    halParam->psize = paramSize;
+    halParam->vsize = valueSize;
+    memcpy(halParam->data, paramData, paramSize);
+    if (valueData) {
+        if (*valueData) {
+            // Value data is provided.
+            memcpy(halParam->data + valueOffsetFromData, *valueData, valueSize);
+        } else {
+            // The caller needs the pointer to the value data location.
+            *valueData = halParam->data + valueOffsetFromData;
+        }
+    }
+    return halParamBuffer;
+}
+
+Result Effect::analyzeCommandStatus(const char* commandName, const char* context, status_t status) {
+    return analyzeStatus("command", commandName, context, status);
+}
+
+Result Effect::analyzeStatus(const char* funcName, const char* subFuncName,
+                             const char* contextDescription, status_t status) {
+    if (status != OK) {
+        ALOGW("Effect %p %s %s %s: %s", mHandle, funcName, subFuncName, contextDescription,
+              strerror(-status));
+    }
+    switch (status) {
+        case OK:
+            return Result::OK;
+        case -EINVAL:
+            return Result::INVALID_ARGUMENTS;
+        case -ENODATA:
+            return Result::INVALID_STATE;
+        case -ENODEV:
+            return Result::NOT_INITIALIZED;
+        case -ENOMEM:
+            return Result::RESULT_TOO_BIG;
+        case -ENOSYS:
+            return Result::NOT_SUPPORTED;
+        default:
+            return Result::INVALID_STATE;
+    }
+}
+
+void Effect::getConfigImpl(int commandCode, const char* commandName, GetConfigCallback cb) {
+    uint32_t halResultSize = sizeof(effect_config_t);
+    effect_config_t halConfig{};
+    status_t status =
+        (*mHandle)->command(mHandle, commandCode, 0, NULL, &halResultSize, &halConfig);
+    EffectConfig config;
+    if (status == OK) {
+        effectConfigFromHal(halConfig, &config);
+    }
+    cb(analyzeCommandStatus(commandName, sContextCallToCommand, status), config);
+}
+
+Result Effect::getCurrentConfigImpl(uint32_t featureId, uint32_t configSize,
+                                    GetCurrentConfigSuccessCallback onSuccess) {
+    uint32_t halCmd = featureId;
+    uint32_t halResult[alignedSizeIn<uint32_t>(sizeof(uint32_t) + configSize)];
+    memset(halResult, 0, sizeof(halResult));
+    uint32_t halResultSize = 0;
+    return sendCommandReturningStatusAndData(EFFECT_CMD_GET_FEATURE_CONFIG, "GET_FEATURE_CONFIG",
+                                             sizeof(uint32_t), &halCmd, &halResultSize, halResult,
+                                             sizeof(uint32_t), [&] { onSuccess(&halResult[1]); });
+}
+
+Result Effect::getParameterImpl(uint32_t paramSize, const void* paramData,
+                                uint32_t requestValueSize, uint32_t replyValueSize,
+                                GetParameterSuccessCallback onSuccess) {
+    // As it is unknown what method HAL uses for copying the provided parameter data,
+    // it is safer to make sure that input and output buffers do not overlap.
+    std::vector<uint8_t> halCmdBuffer =
+        parameterToHal(paramSize, paramData, requestValueSize, nullptr);
+    const void* valueData = nullptr;
+    std::vector<uint8_t> halParamBuffer =
+        parameterToHal(paramSize, paramData, replyValueSize, &valueData);
+    uint32_t halParamBufferSize = halParamBuffer.size();
+
+    return sendCommandReturningStatusAndData(
+        EFFECT_CMD_GET_PARAM, "GET_PARAM", halCmdBuffer.size(), &halCmdBuffer[0],
+        &halParamBufferSize, &halParamBuffer[0], sizeof(effect_param_t), [&] {
+            effect_param_t* halParam = reinterpret_cast<effect_param_t*>(&halParamBuffer[0]);
+            onSuccess(halParam->vsize, valueData);
+        });
+}
+
+Result Effect::getSupportedConfigsImpl(uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+                                       GetSupportedConfigsSuccessCallback onSuccess) {
+    uint32_t halCmd[2] = {featureId, maxConfigs};
+    uint32_t halResultSize = 2 * sizeof(uint32_t) + maxConfigs * sizeof(configSize);
+    uint8_t halResult[halResultSize];
+    memset(&halResult[0], 0, halResultSize);
+    return sendCommandReturningStatusAndData(
+        EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS, "GET_FEATURE_SUPPORTED_CONFIGS", sizeof(halCmd),
+        halCmd, &halResultSize, &halResult[0], 2 * sizeof(uint32_t), [&] {
+            uint32_t* halResult32 = reinterpret_cast<uint32_t*>(&halResult[0]);
+            uint32_t supportedConfigs = *(++halResult32);  // skip status field
+            if (supportedConfigs > maxConfigs) supportedConfigs = maxConfigs;
+            onSuccess(supportedConfigs, ++halResult32);
+        });
+}
+
+Return<void> Effect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    status_t status;
+    // Create message queue.
+    if (mStatusMQ) {
+        ALOGE("the client attempts to call prepareForProcessing_cb twice");
+        _hidl_cb(Result::INVALID_STATE, StatusMQ::Descriptor());
+        return Void();
+    }
+    std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1, true /*EventFlag*/));
+    if (!tempStatusMQ->isValid()) {
+        ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
+        _hidl_cb(Result::INVALID_ARGUMENTS, StatusMQ::Descriptor());
+        return Void();
+    }
+    status = EventFlag::createEventFlag(tempStatusMQ->getEventFlagWord(), &mEfGroup);
+    if (status != OK || !mEfGroup) {
+        ALOGE("failed creating event flag for status MQ: %s", strerror(-status));
+        _hidl_cb(Result::INVALID_ARGUMENTS, StatusMQ::Descriptor());
+        return Void();
+    }
+
+    // Create and launch the thread.
+    mProcessThread = new ProcessThread(&mStopProcessThread, mHandle, &mHalInBufferPtr,
+                                       &mHalOutBufferPtr, tempStatusMQ.get(), mEfGroup);
+    status = mProcessThread->run("effect", PRIORITY_URGENT_AUDIO);
+    if (status != OK) {
+        ALOGW("failed to start effect processing thread: %s", strerror(-status));
+        _hidl_cb(Result::INVALID_ARGUMENTS, MQDescriptorSync<Result>());
+        return Void();
+    }
+
+    mStatusMQ = std::move(tempStatusMQ);
+    _hidl_cb(Result::OK, *mStatusMQ->getDesc());
+    return Void();
+}
+
+Return<Result> Effect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                         const AudioBuffer& outBuffer) {
+    AudioBufferManager& manager = AudioBufferManager::getInstance();
+    sp<AudioBufferWrapper> tempInBuffer, tempOutBuffer;
+    if (!manager.wrap(inBuffer, &tempInBuffer)) {
+        ALOGE("Could not map memory of the input buffer");
+        return Result::INVALID_ARGUMENTS;
+    }
+    if (!manager.wrap(outBuffer, &tempOutBuffer)) {
+        ALOGE("Could not map memory of the output buffer");
+        return Result::INVALID_ARGUMENTS;
+    }
+    mInBuffer = tempInBuffer;
+    mOutBuffer = tempOutBuffer;
+    // The processing thread only reads these pointers after waking up by an event flag,
+    // so it's OK to update the pair non-atomically.
+    mHalInBufferPtr.store(mInBuffer->getHalBuffer(), std::memory_order_release);
+    mHalOutBufferPtr.store(mOutBuffer->getHalBuffer(), std::memory_order_release);
+    return Result::OK;
+}
+
+Result Effect::sendCommand(int commandCode, const char* commandName) {
+    return sendCommand(commandCode, commandName, 0, NULL);
+}
+
+Result Effect::sendCommand(int commandCode, const char* commandName, uint32_t size, void* data) {
+    status_t status = (*mHandle)->command(mHandle, commandCode, size, data, 0, NULL);
+    return analyzeCommandStatus(commandName, sContextCallToCommand, status);
+}
+
+Result Effect::sendCommandReturningData(int commandCode, const char* commandName,
+                                        uint32_t* replySize, void* replyData) {
+    return sendCommandReturningData(commandCode, commandName, 0, NULL, replySize, replyData);
+}
+
+Result Effect::sendCommandReturningData(int commandCode, const char* commandName, uint32_t size,
+                                        void* data, uint32_t* replySize, void* replyData) {
+    uint32_t expectedReplySize = *replySize;
+    status_t status = (*mHandle)->command(mHandle, commandCode, size, data, replySize, replyData);
+    if (status == OK && *replySize != expectedReplySize) {
+        status = -ENODATA;
+    }
+    return analyzeCommandStatus(commandName, sContextCallToCommand, status);
+}
+
+Result Effect::sendCommandReturningStatus(int commandCode, const char* commandName) {
+    return sendCommandReturningStatus(commandCode, commandName, 0, NULL);
+}
+
+Result Effect::sendCommandReturningStatus(int commandCode, const char* commandName, uint32_t size,
+                                          void* data) {
+    uint32_t replyCmdStatus;
+    uint32_t replySize = sizeof(uint32_t);
+    return sendCommandReturningStatusAndData(commandCode, commandName, size, data, &replySize,
+                                             &replyCmdStatus, replySize, [] {});
+}
+
+Result Effect::sendCommandReturningStatusAndData(int commandCode, const char* commandName,
+                                                 uint32_t size, void* data, uint32_t* replySize,
+                                                 void* replyData, uint32_t minReplySize,
+                                                 CommandSuccessCallback onSuccess) {
+    status_t status = (*mHandle)->command(mHandle, commandCode, size, data, replySize, replyData);
+    Result retval;
+    if (status == OK && minReplySize >= sizeof(uint32_t) && *replySize >= minReplySize) {
+        uint32_t commandStatus = *reinterpret_cast<uint32_t*>(replyData);
+        retval = analyzeCommandStatus(commandName, sContextResultOfCommand, commandStatus);
+        if (commandStatus == OK) {
+            onSuccess();
+        }
+    } else {
+        retval = analyzeCommandStatus(commandName, sContextCallToCommand, status);
+    }
+    return retval;
+}
+
+Result Effect::setConfigImpl(int commandCode, const char* commandName, const EffectConfig& config,
+                             const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+                             const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    effect_config_t halConfig;
+    effectConfigToHal(config, &halConfig);
+    if (inputBufferProvider != 0) {
+        LOG_FATAL("Using input buffer provider is not supported");
+    }
+    if (outputBufferProvider != 0) {
+        LOG_FATAL("Using output buffer provider is not supported");
+    }
+    return sendCommandReturningStatus(commandCode, commandName, sizeof(effect_config_t),
+                                      &halConfig);
+}
+
+Result Effect::setParameterImpl(uint32_t paramSize, const void* paramData, uint32_t valueSize,
+                                const void* valueData) {
+    std::vector<uint8_t> halParamBuffer =
+        parameterToHal(paramSize, paramData, valueSize, &valueData);
+    return sendCommandReturningStatus(EFFECT_CMD_SET_PARAM, "SET_PARAM", halParamBuffer.size(),
+                                      &halParamBuffer[0]);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> Effect::init() {
+    return sendCommandReturningStatus(EFFECT_CMD_INIT, "INIT");
+}
+
+Return<Result> Effect::setConfig(const EffectConfig& config,
+                                 const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+                                 const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return setConfigImpl(EFFECT_CMD_SET_CONFIG, "SET_CONFIG", config, inputBufferProvider,
+                         outputBufferProvider);
+}
+
+Return<Result> Effect::reset() {
+    return sendCommand(EFFECT_CMD_RESET, "RESET");
+}
+
+Return<Result> Effect::enable() {
+    return sendCommandReturningStatus(EFFECT_CMD_ENABLE, "ENABLE");
+}
+
+Return<Result> Effect::disable() {
+    return sendCommandReturningStatus(EFFECT_CMD_DISABLE, "DISABLE");
+}
+
+Return<Result> Effect::setDevice(AudioDeviceBitfield device) {
+    uint32_t halDevice = static_cast<uint32_t>(device);
+    return sendCommand(EFFECT_CMD_SET_DEVICE, "SET_DEVICE", sizeof(uint32_t), &halDevice);
+}
+
+Return<void> Effect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                     setAndGetVolume_cb _hidl_cb) {
+    uint32_t halDataSize;
+    std::unique_ptr<uint8_t[]> halData = hidlVecToHal(volumes, &halDataSize);
+    uint32_t halResultSize = halDataSize;
+    uint32_t halResult[volumes.size()];
+    Result retval = sendCommandReturningData(EFFECT_CMD_SET_VOLUME, "SET_VOLUME", halDataSize,
+                                             &halData[0], &halResultSize, halResult);
+    hidl_vec<uint32_t> result;
+    if (retval == Result::OK) {
+        result.setToExternal(&halResult[0], halResultSize);
+    }
+    _hidl_cb(retval, result);
+    return Void();
+}
+
+Return<Result> Effect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    uint32_t halDataSize;
+    std::unique_ptr<uint8_t[]> halData = hidlVecToHal(volumes, &halDataSize);
+    return sendCommand(EFFECT_CMD_SET_VOLUME, "SET_VOLUME", halDataSize, &halData[0]);
+}
+
+Return<Result> Effect::setAudioMode(AudioMode mode) {
+    uint32_t halMode = static_cast<uint32_t>(mode);
+    return sendCommand(EFFECT_CMD_SET_AUDIO_MODE, "SET_AUDIO_MODE", sizeof(uint32_t), &halMode);
+}
+
+Return<Result> Effect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return setConfigImpl(EFFECT_CMD_SET_CONFIG_REVERSE, "SET_CONFIG_REVERSE", config,
+                         inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> Effect::setInputDevice(AudioDeviceBitfield device) {
+    uint32_t halDevice = static_cast<uint32_t>(device);
+    return sendCommand(EFFECT_CMD_SET_INPUT_DEVICE, "SET_INPUT_DEVICE", sizeof(uint32_t),
+                       &halDevice);
+}
+
+Return<void> Effect::getConfig(getConfig_cb _hidl_cb) {
+    getConfigImpl(EFFECT_CMD_GET_CONFIG, "GET_CONFIG", _hidl_cb);
+    return Void();
+}
+
+Return<void> Effect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    getConfigImpl(EFFECT_CMD_GET_CONFIG_REVERSE, "GET_CONFIG_REVERSE", _hidl_cb);
+    return Void();
+}
+
+Return<void> Effect::getSupportedAuxChannelsConfigs(uint32_t maxConfigs,
+                                                    getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    hidl_vec<EffectAuxChannelsConfig> result;
+    Result retval = getSupportedConfigsImpl(
+        EFFECT_FEATURE_AUX_CHANNELS, maxConfigs, sizeof(channel_config_t),
+        [&](uint32_t supportedConfigs, void* configsData) {
+            result.resize(supportedConfigs);
+            channel_config_t* config = reinterpret_cast<channel_config_t*>(configsData);
+            for (size_t i = 0; i < result.size(); ++i) {
+                effectAuxChannelsConfigFromHal(*config++, &result[i]);
+            }
+        });
+    _hidl_cb(retval, result);
+    return Void();
+}
+
+Return<void> Effect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    uint32_t halResult[alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t))];
+    memset(halResult, 0, sizeof(halResult));
+    EffectAuxChannelsConfig result;
+    Result retval = getCurrentConfigImpl(
+        EFFECT_FEATURE_AUX_CHANNELS, sizeof(channel_config_t), [&](void* configData) {
+            effectAuxChannelsConfigFromHal(*reinterpret_cast<channel_config_t*>(configData),
+                                           &result);
+        });
+    _hidl_cb(retval, result);
+    return Void();
+}
+
+Return<Result> Effect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    uint32_t halCmd[alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t))];
+    halCmd[0] = EFFECT_FEATURE_AUX_CHANNELS;
+    effectAuxChannelsConfigToHal(config, reinterpret_cast<channel_config_t*>(&halCmd[1]));
+    return sendCommandReturningStatus(EFFECT_CMD_SET_FEATURE_CONFIG,
+                                      "SET_FEATURE_CONFIG AUX_CHANNELS", sizeof(halCmd), halCmd);
+}
+
+Return<Result> Effect::setAudioSource(AudioSource source) {
+    uint32_t halSource = static_cast<uint32_t>(source);
+    return sendCommand(EFFECT_CMD_SET_AUDIO_SOURCE, "SET_AUDIO_SOURCE", sizeof(uint32_t),
+                       &halSource);
+}
+
+Return<Result> Effect::offload(const EffectOffloadParameter& param) {
+    effect_offload_param_t halParam;
+    effectOffloadParamToHal(param, &halParam);
+    return sendCommandReturningStatus(EFFECT_CMD_OFFLOAD, "OFFLOAD", sizeof(effect_offload_param_t),
+                                      &halParam);
+}
+
+Return<void> Effect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    effect_descriptor_t halDescriptor;
+    memset(&halDescriptor, 0, sizeof(effect_descriptor_t));
+    status_t status = (*mHandle)->get_descriptor(mHandle, &halDescriptor);
+    EffectDescriptor descriptor;
+    if (status == OK) {
+        effectDescriptorFromHal(halDescriptor, &descriptor);
+    }
+    _hidl_cb(analyzeStatus("get_descriptor", "", sContextCallFunction, status), descriptor);
+    return Void();
+}
+
+Return<void> Effect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                             uint32_t resultMaxSize, command_cb _hidl_cb) {
+    uint32_t halDataSize;
+    std::unique_ptr<uint8_t[]> halData = hidlVecToHal(data, &halDataSize);
+    uint32_t halResultSize = resultMaxSize;
+    std::unique_ptr<uint8_t[]> halResult(new uint8_t[halResultSize]);
+    memset(&halResult[0], 0, halResultSize);
+
+    void* dataPtr = halDataSize > 0 ? &halData[0] : NULL;
+    void* resultPtr = halResultSize > 0 ? &halResult[0] : NULL;
+    status_t status =
+        (*mHandle)->command(mHandle, commandId, halDataSize, dataPtr, &halResultSize, resultPtr);
+    hidl_vec<uint8_t> result;
+    if (status == OK && resultPtr != NULL) {
+        result.setToExternal(&halResult[0], halResultSize);
+    }
+    _hidl_cb(status, result);
+    return Void();
+}
+
+Return<Result> Effect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                    const hidl_vec<uint8_t>& value) {
+    return setParameterImpl(parameter.size(), &parameter[0], value.size(), &value[0]);
+}
+
+Return<void> Effect::getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                                  getParameter_cb _hidl_cb) {
+    hidl_vec<uint8_t> value;
+    Result retval = getParameterImpl(
+        parameter.size(), &parameter[0], valueMaxSize,
+        [&](uint32_t valueSize, const void* valueData) {
+            value.setToExternal(reinterpret_cast<uint8_t*>(const_cast<void*>(valueData)),
+                                valueSize);
+        });
+    _hidl_cb(retval, value);
+    return Void();
+}
+
+Return<void> Effect::getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                                   uint32_t configSize,
+                                                   getSupportedConfigsForFeature_cb _hidl_cb) {
+    uint32_t configCount = 0;
+    hidl_vec<uint8_t> result;
+    Result retval = getSupportedConfigsImpl(featureId, maxConfigs, configSize,
+                                            [&](uint32_t supportedConfigs, void* configsData) {
+                                                configCount = supportedConfigs;
+                                                result.resize(configCount * configSize);
+                                                memcpy(&result[0], configsData, result.size());
+                                            });
+    _hidl_cb(retval, configCount, result);
+    return Void();
+}
+
+Return<void> Effect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                                getCurrentConfigForFeature_cb _hidl_cb) {
+    hidl_vec<uint8_t> result;
+    Result retval = getCurrentConfigImpl(featureId, configSize, [&](void* configData) {
+        result.resize(configSize);
+        memcpy(&result[0], configData, result.size());
+    });
+    _hidl_cb(retval, result);
+    return Void();
+}
+
+Return<Result> Effect::setCurrentConfigForFeature(uint32_t featureId,
+                                                  const hidl_vec<uint8_t>& configData) {
+    uint32_t halCmd[alignedSizeIn<uint32_t>(sizeof(uint32_t) + configData.size())];
+    memset(halCmd, 0, sizeof(halCmd));
+    halCmd[0] = featureId;
+    memcpy(&halCmd[1], &configData[0], configData.size());
+    return sendCommandReturningStatus(EFFECT_CMD_SET_FEATURE_CONFIG, "SET_FEATURE_CONFIG",
+                                      sizeof(halCmd), halCmd);
+}
+
+Return<Result> Effect::close() {
+    if (mIsClosed) return Result::INVALID_STATE;
+    mIsClosed = true;
+    if (mProcessThread.get()) {
+        mStopProcessThread.store(true, std::memory_order_release);
+    }
+    if (mEfGroup) {
+        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_QUIT));
+    }
+    return Result::OK;
+}
+
+Return<void> Effect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
+    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
+        uint32_t cmdData = fd->data[0];
+        (void)sendCommand(EFFECT_CMD_DUMP, "DUMP", sizeof(cmdData), &cmdData);
+    }
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/Effect.h b/audio/effect/all-versions/default/Effect.h
new file mode 100644
index 0000000..3d99a0e
--- /dev/null
+++ b/audio/effect/all-versions/default/Effect.h
@@ -0,0 +1,238 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_EFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_EFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEffect.h)
+
+#include "AudioBufferManager.h"
+
+#include <atomic>
+#include <memory>
+#include <vector>
+
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <utils/Thread.h>
+
+#include <hardware/audio_effect.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioDeviceBitfield;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct Effect : public IEffect {
+    typedef MessageQueue<Result, kSynchronizedReadWrite> StatusMQ;
+    using GetParameterSuccessCallback =
+        std::function<void(uint32_t valueSize, const void* valueData)>;
+
+    explicit Effect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Utility methods for extending interfaces.
+    template <typename T>
+    Return<void> getIntegerParam(uint32_t paramId,
+                                 std::function<void(Result retval, T paramValue)> cb) {
+        T value;
+        Result retval = getParameterImpl(sizeof(uint32_t), &paramId, sizeof(T),
+                                         [&](uint32_t valueSize, const void* valueData) {
+                                             if (valueSize > sizeof(T)) valueSize = sizeof(T);
+                                             memcpy(&value, valueData, valueSize);
+                                         });
+        cb(retval, value);
+        return Void();
+    }
+
+    template <typename T>
+    Result getParam(uint32_t paramId, T& paramValue) {
+        return getParameterImpl(sizeof(uint32_t), &paramId, sizeof(T),
+                                [&](uint32_t valueSize, const void* valueData) {
+                                    if (valueSize > sizeof(T)) valueSize = sizeof(T);
+                                    memcpy(&paramValue, valueData, valueSize);
+                                });
+    }
+
+    template <typename T>
+    Result getParam(uint32_t paramId, uint32_t paramArg, T& paramValue) {
+        uint32_t params[2] = {paramId, paramArg};
+        return getParameterImpl(sizeof(params), params, sizeof(T),
+                                [&](uint32_t valueSize, const void* valueData) {
+                                    if (valueSize > sizeof(T)) valueSize = sizeof(T);
+                                    memcpy(&paramValue, valueData, valueSize);
+                                });
+    }
+
+    template <typename T>
+    Result setParam(uint32_t paramId, const T& paramValue) {
+        return setParameterImpl(sizeof(uint32_t), &paramId, sizeof(T), &paramValue);
+    }
+
+    template <typename T>
+    Result setParam(uint32_t paramId, uint32_t paramArg, const T& paramValue) {
+        uint32_t params[2] = {paramId, paramArg};
+        return setParameterImpl(sizeof(params), params, sizeof(T), &paramValue);
+    }
+
+    Result getParameterImpl(uint32_t paramSize, const void* paramData, uint32_t valueSize,
+                            GetParameterSuccessCallback onSuccess) {
+        return getParameterImpl(paramSize, paramData, valueSize, valueSize, onSuccess);
+    }
+    Result getParameterImpl(uint32_t paramSize, const void* paramData, uint32_t requestValueSize,
+                            uint32_t replyValueSize, GetParameterSuccessCallback onSuccess);
+    Result setParameterImpl(uint32_t paramSize, const void* paramData, uint32_t valueSize,
+                            const void* valueData);
+
+   private:
+    friend struct VirtualizerEffect;  // for getParameterImpl
+    friend struct VisualizerEffect;   // to allow executing commands
+
+    using CommandSuccessCallback = std::function<void()>;
+    using GetConfigCallback = std::function<void(Result retval, const EffectConfig& config)>;
+    using GetCurrentConfigSuccessCallback = std::function<void(void* configData)>;
+    using GetSupportedConfigsSuccessCallback =
+        std::function<void(uint32_t supportedConfigs, void* configsData)>;
+
+    static const char* sContextResultOfCommand;
+    static const char* sContextCallToCommand;
+    static const char* sContextCallFunction;
+
+    bool mIsClosed;
+    effect_handle_t mHandle;
+    sp<AudioBufferWrapper> mInBuffer;
+    sp<AudioBufferWrapper> mOutBuffer;
+    std::atomic<audio_buffer_t*> mHalInBufferPtr;
+    std::atomic<audio_buffer_t*> mHalOutBufferPtr;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    EventFlag* mEfGroup;
+    std::atomic<bool> mStopProcessThread;
+    sp<Thread> mProcessThread;
+
+    virtual ~Effect();
+
+    template <typename T>
+    static size_t alignedSizeIn(size_t s);
+    template <typename T>
+    std::unique_ptr<uint8_t[]> hidlVecToHal(const hidl_vec<T>& vec, uint32_t* halDataSize);
+    static void effectAuxChannelsConfigFromHal(const channel_config_t& halConfig,
+                                               EffectAuxChannelsConfig* config);
+    static void effectAuxChannelsConfigToHal(const EffectAuxChannelsConfig& config,
+                                             channel_config_t* halConfig);
+    static void effectBufferConfigFromHal(const buffer_config_t& halConfig,
+                                          EffectBufferConfig* config);
+    static void effectBufferConfigToHal(const EffectBufferConfig& config,
+                                        buffer_config_t* halConfig);
+    static void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config);
+    static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig);
+    static void effectOffloadParamToHal(const EffectOffloadParameter& offload,
+                                        effect_offload_param_t* halOffload);
+    static std::vector<uint8_t> parameterToHal(uint32_t paramSize, const void* paramData,
+                                               uint32_t valueSize, const void** valueData);
+
+    Result analyzeCommandStatus(const char* commandName, const char* context, status_t status);
+    Result analyzeStatus(const char* funcName, const char* subFuncName,
+                         const char* contextDescription, status_t status);
+    void getConfigImpl(int commandCode, const char* commandName, GetConfigCallback cb);
+    Result getCurrentConfigImpl(uint32_t featureId, uint32_t configSize,
+                                GetCurrentConfigSuccessCallback onSuccess);
+    Result getSupportedConfigsImpl(uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+                                   GetSupportedConfigsSuccessCallback onSuccess);
+    Result sendCommand(int commandCode, const char* commandName);
+    Result sendCommand(int commandCode, const char* commandName, uint32_t size, void* data);
+    Result sendCommandReturningData(int commandCode, const char* commandName, uint32_t* replySize,
+                                    void* replyData);
+    Result sendCommandReturningData(int commandCode, const char* commandName, uint32_t size,
+                                    void* data, uint32_t* replySize, void* replyData);
+    Result sendCommandReturningStatus(int commandCode, const char* commandName);
+    Result sendCommandReturningStatus(int commandCode, const char* commandName, uint32_t size,
+                                      void* data);
+    Result sendCommandReturningStatusAndData(int commandCode, const char* commandName,
+                                             uint32_t size, void* data, uint32_t* replySize,
+                                             void* replyData, uint32_t minReplySize,
+                                             CommandSuccessCallback onSuccess);
+    Result setConfigImpl(int commandCode, const char* commandName, const EffectConfig& config,
+                         const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+                         const sp<IEffectBufferProviderCallback>& outputBufferProvider);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_EFFECT_H
diff --git a/audio/effect/all-versions/default/EffectsFactory.cpp b/audio/effect/all-versions/default/EffectsFactory.cpp
new file mode 100644
index 0000000..6283e7b
--- /dev/null
+++ b/audio/effect/all-versions/default/EffectsFactory.cpp
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectFactoryHAL"
+#include "EffectsFactory.h"
+#include "AcousticEchoCancelerEffect.h"
+#include "AutomaticGainControlEffect.h"
+#include "BassBoostEffect.h"
+#include "Conversions.h"
+#include "DownmixEffect.h"
+#include "Effect.h"
+#include "EnvironmentalReverbEffect.h"
+#include "EqualizerEffect.h"
+#include "HidlUtils.h"
+#include "LoudnessEnhancerEffect.h"
+#include "NoiseSuppressionEffect.h"
+#include "PresetReverbEffect.h"
+#include "VirtualizerEffect.h"
+#include "VisualizerEffect.h"
+#include "common/all-versions/default/EffectMap.h"
+
+#include <android/log.h>
+#include <media/EffectsFactoryApi.h>
+#include <system/audio_effects/effect_aec.h>
+#include <system/audio_effects/effect_agc.h>
+#include <system/audio_effects/effect_bassboost.h>
+#include <system/audio_effects/effect_downmix.h>
+#include <system/audio_effects/effect_environmentalreverb.h>
+#include <system/audio_effects/effect_equalizer.h>
+#include <system/audio_effects/effect_loudnessenhancer.h>
+#include <system/audio_effects/effect_ns.h>
+#include <system/audio_effects/effect_presetreverb.h>
+#include <system/audio_effects/effect_virtualizer.h>
+#include <system/audio_effects/effect_visualizer.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+
+// static
+sp<IEffect> EffectsFactory::dispatchEffectInstanceCreation(const effect_descriptor_t& halDescriptor,
+                                                           effect_handle_t handle) {
+    const effect_uuid_t* halUuid = &halDescriptor.type;
+    if (memcmp(halUuid, FX_IID_AEC, sizeof(effect_uuid_t)) == 0) {
+        return new AcousticEchoCancelerEffect(handle);
+    } else if (memcmp(halUuid, FX_IID_AGC, sizeof(effect_uuid_t)) == 0) {
+        return new AutomaticGainControlEffect(handle);
+    } else if (memcmp(halUuid, SL_IID_BASSBOOST, sizeof(effect_uuid_t)) == 0) {
+        return new BassBoostEffect(handle);
+    } else if (memcmp(halUuid, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
+        return new DownmixEffect(handle);
+    } else if (memcmp(halUuid, SL_IID_ENVIRONMENTALREVERB, sizeof(effect_uuid_t)) == 0) {
+        return new EnvironmentalReverbEffect(handle);
+    } else if (memcmp(halUuid, SL_IID_EQUALIZER, sizeof(effect_uuid_t)) == 0) {
+        return new EqualizerEffect(handle);
+    } else if (memcmp(halUuid, FX_IID_LOUDNESS_ENHANCER, sizeof(effect_uuid_t)) == 0) {
+        return new LoudnessEnhancerEffect(handle);
+    } else if (memcmp(halUuid, FX_IID_NS, sizeof(effect_uuid_t)) == 0) {
+        return new NoiseSuppressionEffect(handle);
+    } else if (memcmp(halUuid, SL_IID_PRESETREVERB, sizeof(effect_uuid_t)) == 0) {
+        return new PresetReverbEffect(handle);
+    } else if (memcmp(halUuid, SL_IID_VIRTUALIZER, sizeof(effect_uuid_t)) == 0) {
+        return new VirtualizerEffect(handle);
+    } else if (memcmp(halUuid, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) {
+        return new VisualizerEffect(handle);
+    }
+    return new Effect(handle);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffectsFactory follow.
+Return<void> EffectsFactory::getAllDescriptors(getAllDescriptors_cb _hidl_cb) {
+    Result retval(Result::OK);
+    hidl_vec<EffectDescriptor> result;
+    uint32_t numEffects;
+    status_t status;
+
+restart:
+    numEffects = 0;
+    status = EffectQueryNumberEffects(&numEffects);
+    if (status != OK) {
+        retval = Result::NOT_INITIALIZED;
+        ALOGE("Error querying number of effects: %s", strerror(-status));
+        goto exit;
+    }
+    result.resize(numEffects);
+    for (uint32_t i = 0; i < numEffects; ++i) {
+        effect_descriptor_t halDescriptor;
+        status = EffectQueryEffect(i, &halDescriptor);
+        if (status == OK) {
+            effectDescriptorFromHal(halDescriptor, &result[i]);
+        } else {
+            ALOGE("Error querying effect at position %d / %d: %s", i, numEffects,
+                  strerror(-status));
+            switch (status) {
+                case -ENOSYS: {
+                    // Effect list has changed.
+                    goto restart;
+                }
+                case -ENOENT: {
+                    // No more effects available.
+                    result.resize(i);
+                    break;
+                }
+                default: {
+                    result.resize(0);
+                    retval = Result::NOT_INITIALIZED;
+                }
+            }
+            break;
+        }
+    }
+
+exit:
+    _hidl_cb(retval, result);
+    return Void();
+}
+
+Return<void> EffectsFactory::getDescriptor(const Uuid& uid, getDescriptor_cb _hidl_cb) {
+    effect_uuid_t halUuid;
+    HidlUtils::uuidToHal(uid, &halUuid);
+    effect_descriptor_t halDescriptor;
+    status_t status = EffectGetDescriptor(&halUuid, &halDescriptor);
+    EffectDescriptor descriptor;
+    effectDescriptorFromHal(halDescriptor, &descriptor);
+    Result retval(Result::OK);
+    if (status != OK) {
+        ALOGE("Error querying effect descriptor for %s: %s", uuidToString(halUuid).c_str(),
+              strerror(-status));
+        if (status == -ENOENT) {
+            retval = Result::INVALID_ARGUMENTS;
+        } else {
+            retval = Result::NOT_INITIALIZED;
+        }
+    }
+    _hidl_cb(retval, descriptor);
+    return Void();
+}
+
+Return<void> EffectsFactory::createEffect(const Uuid& uid, int32_t session, int32_t ioHandle,
+                                          createEffect_cb _hidl_cb) {
+    effect_uuid_t halUuid;
+    HidlUtils::uuidToHal(uid, &halUuid);
+    effect_handle_t handle;
+    Result retval(Result::OK);
+    status_t status = EffectCreate(&halUuid, session, ioHandle, &handle);
+    sp<IEffect> effect;
+    uint64_t effectId = EffectMap::INVALID_ID;
+    if (status == OK) {
+        effect_descriptor_t halDescriptor;
+        memset(&halDescriptor, 0, sizeof(effect_descriptor_t));
+        status = (*handle)->get_descriptor(handle, &halDescriptor);
+        if (status == OK) {
+            effect = dispatchEffectInstanceCreation(halDescriptor, handle);
+            effectId = EffectMap::getInstance().add(handle);
+        } else {
+            ALOGE("Error querying effect descriptor for %s: %s", uuidToString(halUuid).c_str(),
+                  strerror(-status));
+            EffectRelease(handle);
+        }
+    }
+    if (status != OK) {
+        ALOGE("Error creating effect %s: %s", uuidToString(halUuid).c_str(), strerror(-status));
+        if (status == -ENOENT) {
+            retval = Result::INVALID_ARGUMENTS;
+        } else {
+            retval = Result::NOT_INITIALIZED;
+        }
+    }
+    _hidl_cb(retval, effect, effectId);
+    return Void();
+}
+
+Return<void> EffectsFactory::debugDump(const hidl_handle& fd) {
+    return debug(fd, {} /* options */);
+}
+
+Return<void> EffectsFactory::debug(const hidl_handle& fd,
+                                   const hidl_vec<hidl_string>& /* options */) {
+    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
+        EffectDumpEffects(fd->data[0]);
+    }
+    return Void();
+}
+
+IEffectsFactory* HIDL_FETCH_IEffectsFactory(const char* name) {
+    return strcmp(name, "default") == 0 ? new EffectsFactory() : nullptr;
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/EffectsFactory.h b/audio/effect/all-versions/default/EffectsFactory.h
new file mode 100644
index 0000000..f0d09ec
--- /dev/null
+++ b/audio/effect/all-versions/default/EffectsFactory.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_EFFECTSFACTORY_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_EFFECTSFACTORY_H
+
+#include <system/audio_effect.h>
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEffectsFactory.h)
+
+#include <hidl/MQDescriptor.h>
+
+#include <hardware/audio_effect.h>
+#include <system/audio_effect.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct EffectsFactory : public IEffectsFactory {
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffectsFactory follow.
+    Return<void> getAllDescriptors(getAllDescriptors_cb _hidl_cb) override;
+    Return<void> getDescriptor(const Uuid& uid, getDescriptor_cb _hidl_cb) override;
+    Return<void> createEffect(const Uuid& uid, int32_t session, int32_t ioHandle,
+                              createEffect_cb _hidl_cb) override;
+    Return<void> debugDump(
+        const hidl_handle& fd);  //< in CPP_VERSION::IEffectsFactory only, alias of debug
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+   private:
+    static sp<IEffect> dispatchEffectInstanceCreation(const effect_descriptor_t& halDescriptor,
+                                                      effect_handle_t handle);
+};
+
+extern "C" IEffectsFactory* HIDL_FETCH_IEffectsFactory(const char* name);
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_EFFECTSFACTORY_H
diff --git a/audio/effect/all-versions/default/EnvironmentalReverbEffect.cpp b/audio/effect/all-versions/default/EnvironmentalReverbEffect.cpp
new file mode 100644
index 0000000..78122d4
--- /dev/null
+++ b/audio/effect/all-versions/default/EnvironmentalReverbEffect.cpp
@@ -0,0 +1,312 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EnvReverb_HAL"
+#include <android/log.h>
+
+#include "EnvironmentalReverbEffect.h"
+
+#include <android/log.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+EnvironmentalReverbEffect::EnvironmentalReverbEffect(effect_handle_t handle)
+    : mEffect(new Effect(handle)) {}
+
+EnvironmentalReverbEffect::~EnvironmentalReverbEffect() {}
+
+void EnvironmentalReverbEffect::propertiesFromHal(
+    const t_reverb_settings& halProperties, IEnvironmentalReverbEffect::AllProperties* properties) {
+    properties->roomLevel = halProperties.roomLevel;
+    properties->roomHfLevel = halProperties.roomHFLevel;
+    properties->decayTime = halProperties.decayTime;
+    properties->decayHfRatio = halProperties.decayHFRatio;
+    properties->reflectionsLevel = halProperties.reflectionsLevel;
+    properties->reflectionsDelay = halProperties.reflectionsDelay;
+    properties->reverbLevel = halProperties.reverbLevel;
+    properties->reverbDelay = halProperties.reverbDelay;
+    properties->diffusion = halProperties.diffusion;
+    properties->density = halProperties.density;
+}
+
+void EnvironmentalReverbEffect::propertiesToHal(
+    const IEnvironmentalReverbEffect::AllProperties& properties, t_reverb_settings* halProperties) {
+    halProperties->roomLevel = properties.roomLevel;
+    halProperties->roomHFLevel = properties.roomHfLevel;
+    halProperties->decayTime = properties.decayTime;
+    halProperties->decayHFRatio = properties.decayHfRatio;
+    halProperties->reflectionsLevel = properties.reflectionsLevel;
+    halProperties->reflectionsDelay = properties.reflectionsDelay;
+    halProperties->reverbLevel = properties.reverbLevel;
+    halProperties->reverbDelay = properties.reverbDelay;
+    halProperties->diffusion = properties.diffusion;
+    halProperties->density = properties.density;
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> EnvironmentalReverbEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> EnvironmentalReverbEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> EnvironmentalReverbEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> EnvironmentalReverbEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> EnvironmentalReverbEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> EnvironmentalReverbEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> EnvironmentalReverbEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                        setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::volumeChangeNotification(
+    const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> EnvironmentalReverbEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> EnvironmentalReverbEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> EnvironmentalReverbEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> EnvironmentalReverbEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> EnvironmentalReverbEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> EnvironmentalReverbEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> EnvironmentalReverbEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setAuxChannelsConfig(
+    const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> EnvironmentalReverbEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> EnvironmentalReverbEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> EnvironmentalReverbEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> EnvironmentalReverbEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                            const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> EnvironmentalReverbEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                                uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                                       const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> EnvironmentalReverbEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                                     uint32_t valueMaxSize,
+                                                     getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> EnvironmentalReverbEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> EnvironmentalReverbEffect::getCurrentConfigForFeature(
+    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setCurrentConfigForFeature(
+    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> EnvironmentalReverbEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> EnvironmentalReverbEffect::debug(const hidl_handle& fd,
+                                              const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEnvironmentalReverbEffect
+// follow.
+Return<Result> EnvironmentalReverbEffect::setBypass(bool bypass) {
+    return mEffect->setParam(REVERB_PARAM_BYPASS, bypass);
+}
+
+Return<void> EnvironmentalReverbEffect::getBypass(getBypass_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_BYPASS, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setRoomLevel(int16_t roomLevel) {
+    return mEffect->setParam(REVERB_PARAM_ROOM_LEVEL, roomLevel);
+}
+
+Return<void> EnvironmentalReverbEffect::getRoomLevel(getRoomLevel_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_ROOM_LEVEL, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setRoomHfLevel(int16_t roomHfLevel) {
+    return mEffect->setParam(REVERB_PARAM_ROOM_HF_LEVEL, roomHfLevel);
+}
+
+Return<void> EnvironmentalReverbEffect::getRoomHfLevel(getRoomHfLevel_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_ROOM_HF_LEVEL, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setDecayTime(uint32_t decayTime) {
+    return mEffect->setParam(REVERB_PARAM_DECAY_TIME, decayTime);
+}
+
+Return<void> EnvironmentalReverbEffect::getDecayTime(getDecayTime_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_DECAY_TIME, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setDecayHfRatio(int16_t decayHfRatio) {
+    return mEffect->setParam(REVERB_PARAM_DECAY_HF_RATIO, decayHfRatio);
+}
+
+Return<void> EnvironmentalReverbEffect::getDecayHfRatio(getDecayHfRatio_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_DECAY_HF_RATIO, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setReflectionsLevel(int16_t reflectionsLevel) {
+    return mEffect->setParam(REVERB_PARAM_REFLECTIONS_LEVEL, reflectionsLevel);
+}
+
+Return<void> EnvironmentalReverbEffect::getReflectionsLevel(getReflectionsLevel_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_REFLECTIONS_LEVEL, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setReflectionsDelay(uint32_t reflectionsDelay) {
+    return mEffect->setParam(REVERB_PARAM_REFLECTIONS_DELAY, reflectionsDelay);
+}
+
+Return<void> EnvironmentalReverbEffect::getReflectionsDelay(getReflectionsDelay_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_REFLECTIONS_DELAY, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setReverbLevel(int16_t reverbLevel) {
+    return mEffect->setParam(REVERB_PARAM_REVERB_LEVEL, reverbLevel);
+}
+
+Return<void> EnvironmentalReverbEffect::getReverbLevel(getReverbLevel_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_REVERB_LEVEL, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setReverbDelay(uint32_t reverbDelay) {
+    return mEffect->setParam(REVERB_PARAM_REVERB_DELAY, reverbDelay);
+}
+
+Return<void> EnvironmentalReverbEffect::getReverbDelay(getReverbDelay_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_REVERB_DELAY, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setDiffusion(int16_t diffusion) {
+    return mEffect->setParam(REVERB_PARAM_DIFFUSION, diffusion);
+}
+
+Return<void> EnvironmentalReverbEffect::getDiffusion(getDiffusion_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_DIFFUSION, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setDensity(int16_t density) {
+    return mEffect->setParam(REVERB_PARAM_DENSITY, density);
+}
+
+Return<void> EnvironmentalReverbEffect::getDensity(getDensity_cb _hidl_cb) {
+    return mEffect->getIntegerParam(REVERB_PARAM_DENSITY, _hidl_cb);
+}
+
+Return<Result> EnvironmentalReverbEffect::setAllProperties(
+    const IEnvironmentalReverbEffect::AllProperties& properties) {
+    t_reverb_settings halProperties;
+    propertiesToHal(properties, &halProperties);
+    return mEffect->setParam(REVERB_PARAM_PROPERTIES, halProperties);
+}
+
+Return<void> EnvironmentalReverbEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
+    t_reverb_settings halProperties;
+    Result retval = mEffect->getParam(REVERB_PARAM_PROPERTIES, halProperties);
+    AllProperties properties;
+    propertiesFromHal(halProperties, &properties);
+    _hidl_cb(retval, properties);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/EnvironmentalReverbEffect.h b/audio/effect/all-versions/default/EnvironmentalReverbEffect.h
new file mode 100644
index 0000000..bb422d4
--- /dev/null
+++ b/audio/effect/all-versions/default/EnvironmentalReverbEffect.h
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_ENVIRONMENTALREVERBEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_ENVIRONMENTALREVERBEFFECT_H
+
+#include <system/audio_effects/effect_environmentalreverb.h>
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEnvironmentalReverbEffect.h)
+
+#include "Effect.h"
+
+#include <system/audio_effects/effect_environmentalreverb.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct EnvironmentalReverbEffect : public IEnvironmentalReverbEffect {
+    explicit EnvironmentalReverbEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from
+    // ::android::hardware::audio::effect::CPP_VERSION::IEnvironmentalReverbEffect follow.
+    Return<Result> setBypass(bool bypass) override;
+    Return<void> getBypass(getBypass_cb _hidl_cb) override;
+    Return<Result> setRoomLevel(int16_t roomLevel) override;
+    Return<void> getRoomLevel(getRoomLevel_cb _hidl_cb) override;
+    Return<Result> setRoomHfLevel(int16_t roomHfLevel) override;
+    Return<void> getRoomHfLevel(getRoomHfLevel_cb _hidl_cb) override;
+    Return<Result> setDecayTime(uint32_t decayTime) override;
+    Return<void> getDecayTime(getDecayTime_cb _hidl_cb) override;
+    Return<Result> setDecayHfRatio(int16_t decayHfRatio) override;
+    Return<void> getDecayHfRatio(getDecayHfRatio_cb _hidl_cb) override;
+    Return<Result> setReflectionsLevel(int16_t reflectionsLevel) override;
+    Return<void> getReflectionsLevel(getReflectionsLevel_cb _hidl_cb) override;
+    Return<Result> setReflectionsDelay(uint32_t reflectionsDelay) override;
+    Return<void> getReflectionsDelay(getReflectionsDelay_cb _hidl_cb) override;
+    Return<Result> setReverbLevel(int16_t reverbLevel) override;
+    Return<void> getReverbLevel(getReverbLevel_cb _hidl_cb) override;
+    Return<Result> setReverbDelay(uint32_t reverbDelay) override;
+    Return<void> getReverbDelay(getReverbDelay_cb _hidl_cb) override;
+    Return<Result> setDiffusion(int16_t diffusion) override;
+    Return<void> getDiffusion(getDiffusion_cb _hidl_cb) override;
+    Return<Result> setDensity(int16_t density) override;
+    Return<void> getDensity(getDensity_cb _hidl_cb) override;
+    Return<Result> setAllProperties(
+        const IEnvironmentalReverbEffect::AllProperties& properties) override;
+    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~EnvironmentalReverbEffect();
+
+    void propertiesFromHal(const t_reverb_settings& halProperties,
+                           IEnvironmentalReverbEffect::AllProperties* properties);
+    void propertiesToHal(const IEnvironmentalReverbEffect::AllProperties& properties,
+                         t_reverb_settings* halProperties);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_ENVIRONMENTALREVERBEFFECT_H
diff --git a/audio/effect/all-versions/default/EqualizerEffect.cpp b/audio/effect/all-versions/default/EqualizerEffect.cpp
new file mode 100644
index 0000000..1b983ec
--- /dev/null
+++ b/audio/effect/all-versions/default/EqualizerEffect.cpp
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Equalizer_HAL"
+
+#include "EqualizerEffect.h"
+
+#include <memory.h>
+
+#include <android/log.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+EqualizerEffect::EqualizerEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
+
+EqualizerEffect::~EqualizerEffect() {}
+
+void EqualizerEffect::propertiesFromHal(const t_equalizer_settings& halProperties,
+                                        IEqualizerEffect::AllProperties* properties) {
+    properties->curPreset = halProperties.curPreset;
+    // t_equalizer_settings incorrectly defines bandLevels as uint16_t,
+    // whereas the actual type of values used by effects is int16_t.
+    const int16_t* signedBandLevels =
+        reinterpret_cast<const int16_t*>(&halProperties.bandLevels[0]);
+    properties->bandLevels.setToExternal(const_cast<int16_t*>(signedBandLevels),
+                                         halProperties.numBands);
+}
+
+std::vector<uint8_t> EqualizerEffect::propertiesToHal(
+    const IEqualizerEffect::AllProperties& properties, t_equalizer_settings** halProperties) {
+    size_t bandsSize = properties.bandLevels.size() * sizeof(uint16_t);
+    std::vector<uint8_t> halBuffer(sizeof(t_equalizer_settings) + bandsSize, 0);
+    *halProperties = reinterpret_cast<t_equalizer_settings*>(&halBuffer[0]);
+    (*halProperties)->curPreset = properties.curPreset;
+    (*halProperties)->numBands = properties.bandLevels.size();
+    memcpy((*halProperties)->bandLevels, &properties.bandLevels[0], bandsSize);
+    return halBuffer;
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> EqualizerEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> EqualizerEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> EqualizerEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> EqualizerEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> EqualizerEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> EqualizerEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> EqualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                              setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> EqualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> EqualizerEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> EqualizerEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> EqualizerEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> EqualizerEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> EqualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> EqualizerEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> EqualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> EqualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> EqualizerEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> EqualizerEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> EqualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> EqualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> EqualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                  const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> EqualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                      uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> EqualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                             const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> EqualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                           uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> EqualizerEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> EqualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                                         getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> EqualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
+                                                           const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> EqualizerEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> EqualizerEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEqualizerEffect follow.
+Return<void> EqualizerEffect::getNumBands(getNumBands_cb _hidl_cb) {
+    return mEffect->getIntegerParam(EQ_PARAM_NUM_BANDS, _hidl_cb);
+}
+
+Return<void> EqualizerEffect::getLevelRange(getLevelRange_cb _hidl_cb) {
+    int16_t halLevels[2] = {0, 0};
+    Result retval = mEffect->getParam(EQ_PARAM_LEVEL_RANGE, halLevels);
+    _hidl_cb(retval, halLevels[0], halLevels[1]);
+    return Void();
+}
+
+Return<Result> EqualizerEffect::setBandLevel(uint16_t band, int16_t level) {
+    return mEffect->setParam(EQ_PARAM_BAND_LEVEL, band, level);
+}
+
+Return<void> EqualizerEffect::getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) {
+    int16_t halLevel = 0;
+    Result retval = mEffect->getParam(EQ_PARAM_BAND_LEVEL, band, halLevel);
+    _hidl_cb(retval, halLevel);
+    return Void();
+}
+
+Return<void> EqualizerEffect::getBandCenterFrequency(uint16_t band,
+                                                     getBandCenterFrequency_cb _hidl_cb) {
+    uint32_t halFreq = 0;
+    Result retval = mEffect->getParam(EQ_PARAM_CENTER_FREQ, band, halFreq);
+    _hidl_cb(retval, halFreq);
+    return Void();
+}
+
+Return<void> EqualizerEffect::getBandFrequencyRange(uint16_t band,
+                                                    getBandFrequencyRange_cb _hidl_cb) {
+    uint32_t halFreqs[2] = {0, 0};
+    Result retval = mEffect->getParam(EQ_PARAM_BAND_FREQ_RANGE, band, halFreqs);
+    _hidl_cb(retval, halFreqs[0], halFreqs[1]);
+    return Void();
+}
+
+Return<void> EqualizerEffect::getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) {
+    uint16_t halBand = 0;
+    Result retval = mEffect->getParam(EQ_PARAM_GET_BAND, freq, halBand);
+    _hidl_cb(retval, halBand);
+    return Void();
+}
+
+Return<void> EqualizerEffect::getPresetNames(getPresetNames_cb _hidl_cb) {
+    uint16_t halPresetCount = 0;
+    Result retval = mEffect->getParam(EQ_PARAM_GET_NUM_OF_PRESETS, halPresetCount);
+    hidl_vec<hidl_string> presetNames;
+    if (retval == Result::OK) {
+        presetNames.resize(halPresetCount);
+        for (uint16_t i = 0; i < halPresetCount; ++i) {
+            char halPresetName[EFFECT_STRING_LEN_MAX];
+            retval = mEffect->getParam(EQ_PARAM_GET_PRESET_NAME, i, halPresetName);
+            if (retval == Result::OK) {
+                presetNames[i] = halPresetName;
+            } else {
+                presetNames.resize(i);
+            }
+        }
+    }
+    _hidl_cb(retval, presetNames);
+    return Void();
+}
+
+Return<Result> EqualizerEffect::setCurrentPreset(uint16_t preset) {
+    return mEffect->setParam(EQ_PARAM_CUR_PRESET, preset);
+}
+
+Return<void> EqualizerEffect::getCurrentPreset(getCurrentPreset_cb _hidl_cb) {
+    return mEffect->getIntegerParam(EQ_PARAM_CUR_PRESET, _hidl_cb);
+}
+
+Return<Result> EqualizerEffect::setAllProperties(
+    const IEqualizerEffect::AllProperties& properties) {
+    t_equalizer_settings* halPropertiesPtr = nullptr;
+    std::vector<uint8_t> halBuffer = propertiesToHal(properties, &halPropertiesPtr);
+    uint32_t paramId = EQ_PARAM_PROPERTIES;
+    return mEffect->setParameterImpl(sizeof(paramId), &paramId, halBuffer.size(), halPropertiesPtr);
+}
+
+Return<void> EqualizerEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
+    uint16_t numBands = 0;
+    Result retval = mEffect->getParam(EQ_PARAM_NUM_BANDS, numBands);
+    AllProperties properties;
+    if (retval != Result::OK) {
+        _hidl_cb(retval, properties);
+        return Void();
+    }
+    size_t valueSize = sizeof(t_equalizer_settings) + sizeof(int16_t) * numBands;
+    uint32_t paramId = EQ_PARAM_PROPERTIES;
+    retval = mEffect->getParameterImpl(
+        sizeof(paramId), &paramId, valueSize, [&](uint32_t, const void* valueData) {
+            const t_equalizer_settings* halProperties =
+                reinterpret_cast<const t_equalizer_settings*>(valueData);
+            propertiesFromHal(*halProperties, &properties);
+        });
+    _hidl_cb(retval, properties);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/EqualizerEffect.h b/audio/effect/all-versions/default/EqualizerEffect.h
new file mode 100644
index 0000000..b1cbefd
--- /dev/null
+++ b/audio/effect/all-versions/default/EqualizerEffect.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_EQUALIZEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_EQUALIZEREFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEqualizerEffect.h)
+
+#include "Effect.h"
+
+#include <vector>
+
+#include <system/audio_effects/effect_equalizer.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct EqualizerEffect : public IEqualizerEffect {
+    explicit EqualizerEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEqualizerEffect follow.
+    Return<void> getNumBands(getNumBands_cb _hidl_cb) override;
+    Return<void> getLevelRange(getLevelRange_cb _hidl_cb) override;
+    Return<Result> setBandLevel(uint16_t band, int16_t level) override;
+    Return<void> getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) override;
+    Return<void> getBandCenterFrequency(uint16_t band, getBandCenterFrequency_cb _hidl_cb) override;
+    Return<void> getBandFrequencyRange(uint16_t band, getBandFrequencyRange_cb _hidl_cb) override;
+    Return<void> getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) override;
+    Return<void> getPresetNames(getPresetNames_cb _hidl_cb) override;
+    Return<Result> setCurrentPreset(uint16_t preset) override;
+    Return<void> getCurrentPreset(getCurrentPreset_cb _hidl_cb) override;
+    Return<Result> setAllProperties(const IEqualizerEffect::AllProperties& properties) override;
+    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~EqualizerEffect();
+
+    void propertiesFromHal(const t_equalizer_settings& halProperties,
+                           IEqualizerEffect::AllProperties* properties);
+    std::vector<uint8_t> propertiesToHal(const IEqualizerEffect::AllProperties& properties,
+                                         t_equalizer_settings** halProperties);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_EQUALIZEREFFECT_H
diff --git a/audio/effect/all-versions/default/LoudnessEnhancerEffect.cpp b/audio/effect/all-versions/default/LoudnessEnhancerEffect.cpp
new file mode 100644
index 0000000..ebd5197
--- /dev/null
+++ b/audio/effect/all-versions/default/LoudnessEnhancerEffect.cpp
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "LoudnessEnhancer_HAL"
+
+#include "LoudnessEnhancerEffect.h"
+
+#include <system/audio_effects/effect_loudnessenhancer.h>
+
+#include <android/log.h>
+#include <system/audio_effects/effect_aec.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+LoudnessEnhancerEffect::LoudnessEnhancerEffect(effect_handle_t handle)
+    : mEffect(new Effect(handle)) {}
+
+LoudnessEnhancerEffect::~LoudnessEnhancerEffect() {}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> LoudnessEnhancerEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> LoudnessEnhancerEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> LoudnessEnhancerEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> LoudnessEnhancerEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> LoudnessEnhancerEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> LoudnessEnhancerEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> LoudnessEnhancerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                     setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> LoudnessEnhancerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> LoudnessEnhancerEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> LoudnessEnhancerEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> LoudnessEnhancerEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> LoudnessEnhancerEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> LoudnessEnhancerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> LoudnessEnhancerEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> LoudnessEnhancerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> LoudnessEnhancerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> LoudnessEnhancerEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> LoudnessEnhancerEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> LoudnessEnhancerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> LoudnessEnhancerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> LoudnessEnhancerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                         const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> LoudnessEnhancerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                             uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> LoudnessEnhancerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                                    const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> LoudnessEnhancerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                                  uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> LoudnessEnhancerEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> LoudnessEnhancerEffect::getCurrentConfigForFeature(
+    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> LoudnessEnhancerEffect::setCurrentConfigForFeature(
+    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> LoudnessEnhancerEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> LoudnessEnhancerEffect::debug(const hidl_handle& fd,
+                                           const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::ILoudnessEnhancerEffect
+// follow.
+Return<Result> LoudnessEnhancerEffect::setTargetGain(int32_t targetGainMb) {
+    return mEffect->setParam(LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB, targetGainMb);
+}
+
+Return<void> LoudnessEnhancerEffect::getTargetGain(getTargetGain_cb _hidl_cb) {
+    // AOSP Loudness Enhancer expects the size of the request to not include the
+    // size of the parameter.
+    uint32_t paramId = LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB;
+    uint32_t targetGainMb = 0;
+    Result retval = mEffect->getParameterImpl(
+        sizeof(paramId), &paramId, 0, sizeof(targetGainMb), [&](uint32_t, const void* valueData) {
+            memcpy(&targetGainMb, valueData, sizeof(targetGainMb));
+        });
+    _hidl_cb(retval, targetGainMb);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/LoudnessEnhancerEffect.h b/audio/effect/all-versions/default/LoudnessEnhancerEffect.h
new file mode 100644
index 0000000..8baf128
--- /dev/null
+++ b/audio/effect/all-versions/default/LoudnessEnhancerEffect.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_LOUDNESSENHANCEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_LOUDNESSENHANCEREFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/ILoudnessEnhancerEffect.h)
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct LoudnessEnhancerEffect : public ILoudnessEnhancerEffect {
+    explicit LoudnessEnhancerEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::ILoudnessEnhancerEffect
+    // follow.
+    Return<Result> setTargetGain(int32_t targetGainMb) override;
+    Return<void> getTargetGain(getTargetGain_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~LoudnessEnhancerEffect();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_LOUDNESSENHANCEREFFECT_H
diff --git a/audio/effect/all-versions/default/NoiseSuppressionEffect.cpp b/audio/effect/all-versions/default/NoiseSuppressionEffect.cpp
new file mode 100644
index 0000000..d01bbe5
--- /dev/null
+++ b/audio/effect/all-versions/default/NoiseSuppressionEffect.cpp
@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "NS_Effect_HAL"
+
+#include "NoiseSuppressionEffect.h"
+
+#include <android/log.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+NoiseSuppressionEffect::NoiseSuppressionEffect(effect_handle_t handle)
+    : mEffect(new Effect(handle)) {}
+
+NoiseSuppressionEffect::~NoiseSuppressionEffect() {}
+
+void NoiseSuppressionEffect::propertiesFromHal(const t_ns_settings& halProperties,
+                                               INoiseSuppressionEffect::AllProperties* properties) {
+    properties->level = Level(halProperties.level);
+    properties->type = Type(halProperties.type);
+}
+
+void NoiseSuppressionEffect::propertiesToHal(
+    const INoiseSuppressionEffect::AllProperties& properties, t_ns_settings* halProperties) {
+    halProperties->level = static_cast<uint32_t>(properties.level);
+    halProperties->type = static_cast<uint32_t>(properties.type);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> NoiseSuppressionEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> NoiseSuppressionEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> NoiseSuppressionEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> NoiseSuppressionEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> NoiseSuppressionEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> NoiseSuppressionEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> NoiseSuppressionEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                     setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> NoiseSuppressionEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> NoiseSuppressionEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> NoiseSuppressionEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> NoiseSuppressionEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> NoiseSuppressionEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> NoiseSuppressionEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> NoiseSuppressionEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> NoiseSuppressionEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> NoiseSuppressionEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> NoiseSuppressionEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> NoiseSuppressionEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> NoiseSuppressionEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> NoiseSuppressionEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> NoiseSuppressionEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                         const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> NoiseSuppressionEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                             uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> NoiseSuppressionEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                                    const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> NoiseSuppressionEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                                  uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> NoiseSuppressionEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> NoiseSuppressionEffect::getCurrentConfigForFeature(
+    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> NoiseSuppressionEffect::setCurrentConfigForFeature(
+    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> NoiseSuppressionEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> NoiseSuppressionEffect::debug(const hidl_handle& fd,
+                                           const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::INoiseSuppressionEffect
+// follow.
+Return<Result> NoiseSuppressionEffect::setSuppressionLevel(INoiseSuppressionEffect::Level level) {
+    return mEffect->setParam(NS_PARAM_LEVEL, static_cast<int32_t>(level));
+}
+
+Return<void> NoiseSuppressionEffect::getSuppressionLevel(getSuppressionLevel_cb _hidl_cb) {
+    int32_t halLevel = 0;
+    Result retval = mEffect->getParam(NS_PARAM_LEVEL, halLevel);
+    _hidl_cb(retval, Level(halLevel));
+    return Void();
+}
+
+Return<Result> NoiseSuppressionEffect::setSuppressionType(INoiseSuppressionEffect::Type type) {
+    return mEffect->setParam(NS_PARAM_TYPE, static_cast<int32_t>(type));
+}
+
+Return<void> NoiseSuppressionEffect::getSuppressionType(getSuppressionType_cb _hidl_cb) {
+    int32_t halType = 0;
+    Result retval = mEffect->getParam(NS_PARAM_TYPE, halType);
+    _hidl_cb(retval, Type(halType));
+    return Void();
+}
+
+Return<Result> NoiseSuppressionEffect::setAllProperties(
+    const INoiseSuppressionEffect::AllProperties& properties) {
+    t_ns_settings halProperties;
+    propertiesToHal(properties, &halProperties);
+    return mEffect->setParam(NS_PARAM_PROPERTIES, halProperties);
+}
+
+Return<void> NoiseSuppressionEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
+    t_ns_settings halProperties;
+    Result retval = mEffect->getParam(NS_PARAM_PROPERTIES, halProperties);
+    AllProperties properties;
+    propertiesFromHal(halProperties, &properties);
+    _hidl_cb(retval, properties);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/NoiseSuppressionEffect.h b/audio/effect/all-versions/default/NoiseSuppressionEffect.h
new file mode 100644
index 0000000..c49bf7b
--- /dev/null
+++ b/audio/effect/all-versions/default/NoiseSuppressionEffect.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_NOISESUPPRESSIONEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_NOISESUPPRESSIONEFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/INoiseSuppressionEffect.h)
+
+#include "Effect.h"
+
+#include <system/audio_effects/effect_ns.h>
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct NoiseSuppressionEffect : public INoiseSuppressionEffect {
+    explicit NoiseSuppressionEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::INoiseSuppressionEffect
+    // follow.
+    Return<Result> setSuppressionLevel(INoiseSuppressionEffect::Level level) override;
+    Return<void> getSuppressionLevel(getSuppressionLevel_cb _hidl_cb) override;
+    Return<Result> setSuppressionType(INoiseSuppressionEffect::Type type) override;
+    Return<void> getSuppressionType(getSuppressionType_cb _hidl_cb) override;
+    Return<Result> setAllProperties(
+        const INoiseSuppressionEffect::AllProperties& properties) override;
+    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~NoiseSuppressionEffect();
+
+    void propertiesFromHal(const t_ns_settings& halProperties,
+                           INoiseSuppressionEffect::AllProperties* properties);
+    void propertiesToHal(const INoiseSuppressionEffect::AllProperties& properties,
+                         t_ns_settings* halProperties);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_NOISESUPPRESSIONEFFECT_H
diff --git a/audio/effect/all-versions/OWNERS b/audio/effect/all-versions/default/OWNERS
similarity index 100%
rename from audio/effect/all-versions/OWNERS
rename to audio/effect/all-versions/default/OWNERS
diff --git a/audio/effect/all-versions/default/PresetReverbEffect.cpp b/audio/effect/all-versions/default/PresetReverbEffect.cpp
new file mode 100644
index 0000000..4a2a3a4
--- /dev/null
+++ b/audio/effect/all-versions/default/PresetReverbEffect.cpp
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "PresetReverb_HAL"
+
+#include "PresetReverbEffect.h"
+
+#include <android/log.h>
+#include <system/audio_effects/effect_presetreverb.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+PresetReverbEffect::PresetReverbEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
+
+PresetReverbEffect::~PresetReverbEffect() {}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> PresetReverbEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> PresetReverbEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> PresetReverbEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> PresetReverbEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> PresetReverbEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> PresetReverbEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> PresetReverbEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                 setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> PresetReverbEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> PresetReverbEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> PresetReverbEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> PresetReverbEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> PresetReverbEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> PresetReverbEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> PresetReverbEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> PresetReverbEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> PresetReverbEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> PresetReverbEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> PresetReverbEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> PresetReverbEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> PresetReverbEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> PresetReverbEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                     const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> PresetReverbEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                         uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> PresetReverbEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                                const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> PresetReverbEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                              uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> PresetReverbEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> PresetReverbEffect::getCurrentConfigForFeature(
+    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> PresetReverbEffect::setCurrentConfigForFeature(uint32_t featureId,
+                                                              const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> PresetReverbEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> PresetReverbEffect::debug(const hidl_handle& fd,
+                                       const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IPresetReverbEffect follow.
+Return<Result> PresetReverbEffect::setPreset(IPresetReverbEffect::Preset preset) {
+    return mEffect->setParam(REVERB_PARAM_PRESET, static_cast<t_reverb_presets>(preset));
+}
+
+Return<void> PresetReverbEffect::getPreset(getPreset_cb _hidl_cb) {
+    t_reverb_presets halPreset = REVERB_PRESET_NONE;
+    Result retval = mEffect->getParam(REVERB_PARAM_PRESET, halPreset);
+    _hidl_cb(retval, Preset(halPreset));
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/PresetReverbEffect.h b/audio/effect/all-versions/default/PresetReverbEffect.h
new file mode 100644
index 0000000..58a6829
--- /dev/null
+++ b/audio/effect/all-versions/default/PresetReverbEffect.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_PRESETREVERBEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_PRESETREVERBEFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IPresetReverbEffect.h)
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct PresetReverbEffect : public IPresetReverbEffect {
+    explicit PresetReverbEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IPresetReverbEffect
+    // follow.
+    Return<Result> setPreset(IPresetReverbEffect::Preset preset) override;
+    Return<void> getPreset(getPreset_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~PresetReverbEffect();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_PRESETREVERBEFFECT_H
diff --git a/audio/effect/all-versions/default/VirtualizerEffect.cpp b/audio/effect/all-versions/default/VirtualizerEffect.cpp
new file mode 100644
index 0000000..1b69a90
--- /dev/null
+++ b/audio/effect/all-versions/default/VirtualizerEffect.cpp
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Virtualizer_HAL"
+
+#include "VirtualizerEffect.h"
+
+#include <memory.h>
+
+#include <android/log.h>
+#include <system/audio_effects/effect_virtualizer.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+VirtualizerEffect::VirtualizerEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
+
+VirtualizerEffect::~VirtualizerEffect() {}
+
+void VirtualizerEffect::speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
+                                             hidl_vec<SpeakerAngle>& speakerAngles) {
+    speakerAngles.resize(channelCount);
+    for (uint32_t i = 0; i < channelCount; ++i) {
+        speakerAngles[i].mask = AudioChannelBitfield(*halAngles++);
+        speakerAngles[i].azimuth = *halAngles++;
+        speakerAngles[i].elevation = *halAngles++;
+    }
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> VirtualizerEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> VirtualizerEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> VirtualizerEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> VirtualizerEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> VirtualizerEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> VirtualizerEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> VirtualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                                setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> VirtualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> VirtualizerEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> VirtualizerEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> VirtualizerEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> VirtualizerEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> VirtualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> VirtualizerEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> VirtualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> VirtualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> VirtualizerEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> VirtualizerEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> VirtualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> VirtualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> VirtualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                    const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> VirtualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                        uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> VirtualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                               const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> VirtualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                             uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> VirtualizerEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> VirtualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                                           getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> VirtualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
+                                                             const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> VirtualizerEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> VirtualizerEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IVirtualizerEffect follow.
+Return<bool> VirtualizerEffect::isStrengthSupported() {
+    bool halSupported = false;
+    mEffect->getParam(VIRTUALIZER_PARAM_STRENGTH_SUPPORTED, halSupported);
+    return halSupported;
+}
+
+Return<Result> VirtualizerEffect::setStrength(uint16_t strength) {
+    return mEffect->setParam(VIRTUALIZER_PARAM_STRENGTH, strength);
+}
+
+Return<void> VirtualizerEffect::getStrength(getStrength_cb _hidl_cb) {
+    return mEffect->getIntegerParam(VIRTUALIZER_PARAM_STRENGTH, _hidl_cb);
+}
+
+Return<void> VirtualizerEffect::getVirtualSpeakerAngles(AudioChannelBitfield mask,
+                                                        AudioDevice device,
+                                                        getVirtualSpeakerAngles_cb _hidl_cb) {
+    uint32_t channelCount =
+        audio_channel_count_from_out_mask(static_cast<audio_channel_mask_t>(mask));
+    size_t halSpeakerAnglesSize = sizeof(int32_t) * 3 * channelCount;
+    uint32_t halParam[3] = {VIRTUALIZER_PARAM_VIRTUAL_SPEAKER_ANGLES,
+                            static_cast<audio_channel_mask_t>(mask),
+                            static_cast<audio_devices_t>(device)};
+    hidl_vec<SpeakerAngle> speakerAngles;
+    Result retval = mEffect->getParameterImpl(
+        sizeof(halParam), halParam, halSpeakerAnglesSize,
+        [&](uint32_t valueSize, const void* valueData) {
+            if (valueSize > halSpeakerAnglesSize) {
+                valueSize = halSpeakerAnglesSize;
+            } else if (valueSize < halSpeakerAnglesSize) {
+                channelCount = valueSize / (sizeof(int32_t) * 3);
+            }
+            speakerAnglesFromHal(reinterpret_cast<const int32_t*>(valueData), channelCount,
+                                 speakerAngles);
+        });
+    _hidl_cb(retval, speakerAngles);
+    return Void();
+}
+
+Return<Result> VirtualizerEffect::forceVirtualizationMode(AudioDevice device) {
+    return mEffect->setParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE,
+                             static_cast<audio_devices_t>(device));
+}
+
+Return<void> VirtualizerEffect::getVirtualizationMode(getVirtualizationMode_cb _hidl_cb) {
+    uint32_t halMode = 0;
+    Result retval = mEffect->getParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE, halMode);
+    _hidl_cb(retval, AudioDevice(halMode));
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/VirtualizerEffect.h b/audio/effect/all-versions/default/VirtualizerEffect.h
new file mode 100644
index 0000000..c630b2e
--- /dev/null
+++ b/audio/effect/all-versions/default/VirtualizerEffect.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_VIRTUALIZEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_VIRTUALIZEREFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IVirtualizerEffect.h)
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioChannelBitfield;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct VirtualizerEffect : public IVirtualizerEffect {
+    explicit VirtualizerEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IVirtualizerEffect
+    // follow.
+    Return<bool> isStrengthSupported() override;
+    Return<Result> setStrength(uint16_t strength) override;
+    Return<void> getStrength(getStrength_cb _hidl_cb) override;
+    Return<void> getVirtualSpeakerAngles(AudioChannelBitfield mask, AudioDevice device,
+                                         getVirtualSpeakerAngles_cb _hidl_cb) override;
+    Return<Result> forceVirtualizationMode(AudioDevice device) override;
+    Return<void> getVirtualizationMode(getVirtualizationMode_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+
+    virtual ~VirtualizerEffect();
+
+    void speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
+                              hidl_vec<SpeakerAngle>& speakerAngles);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_VIRTUALIZEREFFECT_H
diff --git a/audio/effect/all-versions/default/VisualizerEffect.cpp b/audio/effect/all-versions/default/VisualizerEffect.cpp
new file mode 100644
index 0000000..ae533bf
--- /dev/null
+++ b/audio/effect/all-versions/default/VisualizerEffect.cpp
@@ -0,0 +1,260 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Visualizer_HAL"
+
+#include "VisualizerEffect.h"
+
+#include <android/log.h>
+#include <system/audio_effects/effect_visualizer.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+VisualizerEffect::VisualizerEffect(effect_handle_t handle)
+    : mEffect(new Effect(handle)), mCaptureSize(0), mMeasurementMode(MeasurementMode::NONE) {}
+
+VisualizerEffect::~VisualizerEffect() {}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+Return<Result> VisualizerEffect::init() {
+    return mEffect->init();
+}
+
+Return<Result> VisualizerEffect::setConfig(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> VisualizerEffect::reset() {
+    return mEffect->reset();
+}
+
+Return<Result> VisualizerEffect::enable() {
+    return mEffect->enable();
+}
+
+Return<Result> VisualizerEffect::disable() {
+    return mEffect->disable();
+}
+
+Return<Result> VisualizerEffect::setDevice(AudioDeviceBitfield device) {
+    return mEffect->setDevice(device);
+}
+
+Return<void> VisualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                               setAndGetVolume_cb _hidl_cb) {
+    return mEffect->setAndGetVolume(volumes, _hidl_cb);
+}
+
+Return<Result> VisualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
+    return mEffect->volumeChangeNotification(volumes);
+}
+
+Return<Result> VisualizerEffect::setAudioMode(AudioMode mode) {
+    return mEffect->setAudioMode(mode);
+}
+
+Return<Result> VisualizerEffect::setConfigReverse(
+    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
+    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
+}
+
+Return<Result> VisualizerEffect::setInputDevice(AudioDeviceBitfield device) {
+    return mEffect->setInputDevice(device);
+}
+
+Return<void> VisualizerEffect::getConfig(getConfig_cb _hidl_cb) {
+    return mEffect->getConfig(_hidl_cb);
+}
+
+Return<void> VisualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
+    return mEffect->getConfigReverse(_hidl_cb);
+}
+
+Return<void> VisualizerEffect::getSupportedAuxChannelsConfigs(
+    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
+    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
+}
+
+Return<void> VisualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
+    return mEffect->getAuxChannelsConfig(_hidl_cb);
+}
+
+Return<Result> VisualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
+    return mEffect->setAuxChannelsConfig(config);
+}
+
+Return<Result> VisualizerEffect::setAudioSource(AudioSource source) {
+    return mEffect->setAudioSource(source);
+}
+
+Return<Result> VisualizerEffect::offload(const EffectOffloadParameter& param) {
+    return mEffect->offload(param);
+}
+
+Return<void> VisualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
+    return mEffect->getDescriptor(_hidl_cb);
+}
+
+Return<void> VisualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
+    return mEffect->prepareForProcessing(_hidl_cb);
+}
+
+Return<Result> VisualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
+                                                   const AudioBuffer& outBuffer) {
+    return mEffect->setProcessBuffers(inBuffer, outBuffer);
+}
+
+Return<void> VisualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
+                                       uint32_t resultMaxSize, command_cb _hidl_cb) {
+    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
+}
+
+Return<Result> VisualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
+                                              const hidl_vec<uint8_t>& value) {
+    return mEffect->setParameter(parameter, value);
+}
+
+Return<void> VisualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
+                                            uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
+    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
+}
+
+Return<void> VisualizerEffect::getSupportedConfigsForFeature(
+    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
+    getSupportedConfigsForFeature_cb _hidl_cb) {
+    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
+}
+
+Return<void> VisualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                                          getCurrentConfigForFeature_cb _hidl_cb) {
+    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
+}
+
+Return<Result> VisualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
+                                                            const hidl_vec<uint8_t>& configData) {
+    return mEffect->setCurrentConfigForFeature(featureId, configData);
+}
+
+Return<Result> VisualizerEffect::close() {
+    return mEffect->close();
+}
+
+Return<void> VisualizerEffect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
+    return mEffect->debug(fd, options);
+}
+
+// Methods from ::android::hardware::audio::effect::CPP_VERSION::IVisualizerEffect follow.
+Return<Result> VisualizerEffect::setCaptureSize(uint16_t captureSize) {
+    Result retval = mEffect->setParam(VISUALIZER_PARAM_CAPTURE_SIZE, captureSize);
+    if (retval == Result::OK) {
+        mCaptureSize = captureSize;
+    }
+    return retval;
+}
+
+Return<void> VisualizerEffect::getCaptureSize(getCaptureSize_cb _hidl_cb) {
+    return mEffect->getIntegerParam(VISUALIZER_PARAM_CAPTURE_SIZE, _hidl_cb);
+}
+
+Return<Result> VisualizerEffect::setScalingMode(IVisualizerEffect::ScalingMode scalingMode) {
+    return mEffect->setParam(VISUALIZER_PARAM_SCALING_MODE, static_cast<int32_t>(scalingMode));
+}
+
+Return<void> VisualizerEffect::getScalingMode(getScalingMode_cb _hidl_cb) {
+    int32_t halMode;
+    Result retval = mEffect->getParam(VISUALIZER_PARAM_SCALING_MODE, halMode);
+    _hidl_cb(retval, ScalingMode(halMode));
+    return Void();
+}
+
+Return<Result> VisualizerEffect::setLatency(uint32_t latencyMs) {
+    return mEffect->setParam(VISUALIZER_PARAM_LATENCY, latencyMs);
+}
+
+Return<void> VisualizerEffect::getLatency(getLatency_cb _hidl_cb) {
+    return mEffect->getIntegerParam(VISUALIZER_PARAM_LATENCY, _hidl_cb);
+}
+
+Return<Result> VisualizerEffect::setMeasurementMode(
+    IVisualizerEffect::MeasurementMode measurementMode) {
+    Result retval =
+        mEffect->setParam(VISUALIZER_PARAM_MEASUREMENT_MODE, static_cast<int32_t>(measurementMode));
+    if (retval == Result::OK) {
+        mMeasurementMode = measurementMode;
+    }
+    return retval;
+}
+
+Return<void> VisualizerEffect::getMeasurementMode(getMeasurementMode_cb _hidl_cb) {
+    int32_t halMode;
+    Result retval = mEffect->getParam(VISUALIZER_PARAM_MEASUREMENT_MODE, halMode);
+    _hidl_cb(retval, MeasurementMode(halMode));
+    return Void();
+}
+
+Return<void> VisualizerEffect::capture(capture_cb _hidl_cb) {
+    if (mCaptureSize == 0) {
+        _hidl_cb(Result::NOT_INITIALIZED, hidl_vec<uint8_t>());
+        return Void();
+    }
+    uint32_t halCaptureSize = mCaptureSize;
+    uint8_t halCapture[mCaptureSize];
+    Result retval = mEffect->sendCommandReturningData(VISUALIZER_CMD_CAPTURE, "VISUALIZER_CAPTURE",
+                                                      &halCaptureSize, halCapture);
+    hidl_vec<uint8_t> capture;
+    if (retval == Result::OK) {
+        capture.setToExternal(&halCapture[0], halCaptureSize);
+    }
+    _hidl_cb(retval, capture);
+    return Void();
+}
+
+Return<void> VisualizerEffect::measure(measure_cb _hidl_cb) {
+    if (mMeasurementMode == MeasurementMode::NONE) {
+        _hidl_cb(Result::NOT_INITIALIZED, Measurement());
+        return Void();
+    }
+    int32_t halMeasurement[MEASUREMENT_COUNT];
+    uint32_t halMeasurementSize = sizeof(halMeasurement);
+    Result retval = mEffect->sendCommandReturningData(VISUALIZER_CMD_MEASURE, "VISUALIZER_MEASURE",
+                                                      &halMeasurementSize, halMeasurement);
+    Measurement measurement = {.mode = MeasurementMode::PEAK_RMS};
+    measurement.value.peakAndRms.peakMb = 0;
+    measurement.value.peakAndRms.rmsMb = 0;
+    if (retval == Result::OK) {
+        measurement.value.peakAndRms.peakMb = halMeasurement[MEASUREMENT_IDX_PEAK];
+        measurement.value.peakAndRms.rmsMb = halMeasurement[MEASUREMENT_IDX_RMS];
+    }
+    _hidl_cb(retval, measurement);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/VisualizerEffect.h b/audio/effect/all-versions/default/VisualizerEffect.h
new file mode 100644
index 0000000..315f844
--- /dev/null
+++ b/audio/effect/all-versions/default/VisualizerEffect.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_VISUALIZEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_VISUALIZEREFFECT_H
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IVisualizerEffect.h)
+
+#include "Effect.h"
+
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include "VersionUtils.h"
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct VisualizerEffect : public IVisualizerEffect {
+    explicit VisualizerEffect(effect_handle_t handle);
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IEffect follow.
+    Return<Result> init() override;
+    Return<Result> setConfig(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> reset() override;
+    Return<Result> enable() override;
+    Return<Result> disable() override;
+    Return<Result> setDevice(AudioDeviceBitfield device) override;
+    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
+                                 setAndGetVolume_cb _hidl_cb) override;
+    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
+    Return<Result> setAudioMode(AudioMode mode) override;
+    Return<Result> setConfigReverse(
+        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
+        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
+    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
+    Return<void> getConfig(getConfig_cb _hidl_cb) override;
+    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
+    Return<void> getSupportedAuxChannelsConfigs(
+        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
+    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
+    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
+    Return<Result> setAudioSource(AudioSource source) override;
+    Return<Result> offload(const EffectOffloadParameter& param) override;
+    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
+    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
+    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
+                                     const AudioBuffer& outBuffer) override;
+    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
+                         command_cb _hidl_cb) override;
+    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
+                                const hidl_vec<uint8_t>& value) override;
+    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
+                              getParameter_cb _hidl_cb) override;
+    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
+                                               uint32_t configSize,
+                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
+    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
+                                            getCurrentConfigForFeature_cb _hidl_cb) override;
+    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
+                                              const hidl_vec<uint8_t>& configData) override;
+    Return<Result> close() override;
+    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
+
+    // Methods from ::android::hardware::audio::effect::CPP_VERSION::IVisualizerEffect follow.
+    Return<Result> setCaptureSize(uint16_t captureSize) override;
+    Return<void> getCaptureSize(getCaptureSize_cb _hidl_cb) override;
+    Return<Result> setScalingMode(IVisualizerEffect::ScalingMode scalingMode) override;
+    Return<void> getScalingMode(getScalingMode_cb _hidl_cb) override;
+    Return<Result> setLatency(uint32_t latencyMs) override;
+    Return<void> getLatency(getLatency_cb _hidl_cb) override;
+    Return<Result> setMeasurementMode(IVisualizerEffect::MeasurementMode measurementMode) override;
+    Return<void> getMeasurementMode(getMeasurementMode_cb _hidl_cb) override;
+    Return<void> capture(capture_cb _hidl_cb) override;
+    Return<void> measure(measure_cb _hidl_cb) override;
+
+   private:
+    sp<Effect> mEffect;
+    uint16_t mCaptureSize;
+    MeasurementMode mMeasurementMode;
+
+    virtual ~VisualizerEffect();
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_VISUALIZEREFFECT_H
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/AcousticEchoCancelerEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/AcousticEchoCancelerEffect.h
deleted file mode 100644
index 852cb3f..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/AcousticEchoCancelerEffect.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IAcousticEchoCancelerEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct AcousticEchoCancelerEffect : public IAcousticEchoCancelerEffect {
-    explicit AcousticEchoCancelerEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from
-    // ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IAcousticEchoCancelerEffect follow.
-    Return<Result> setEchoDelay(uint32_t echoDelayMs) override;
-    Return<void> getEchoDelay(getEchoDelay_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~AcousticEchoCancelerEffect();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/AcousticEchoCancelerEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/AcousticEchoCancelerEffect.impl.h
deleted file mode 100644
index 8ad80a2..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/AcousticEchoCancelerEffect.impl.h
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_aec.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-AcousticEchoCancelerEffect::AcousticEchoCancelerEffect(effect_handle_t handle)
-    : mEffect(new Effect(handle)) {}
-
-AcousticEchoCancelerEffect::~AcousticEchoCancelerEffect() {}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> AcousticEchoCancelerEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> AcousticEchoCancelerEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> AcousticEchoCancelerEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> AcousticEchoCancelerEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> AcousticEchoCancelerEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> AcousticEchoCancelerEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> AcousticEchoCancelerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                         setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> AcousticEchoCancelerEffect::volumeChangeNotification(
-    const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> AcousticEchoCancelerEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> AcousticEchoCancelerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> AcousticEchoCancelerEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> AcousticEchoCancelerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setAuxChannelsConfig(
-    const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> AcousticEchoCancelerEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> AcousticEchoCancelerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> AcousticEchoCancelerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                             const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> AcousticEchoCancelerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                                 uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                                        const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> AcousticEchoCancelerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                                      uint32_t valueMaxSize,
-                                                      getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> AcousticEchoCancelerEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> AcousticEchoCancelerEffect::getCurrentConfigForFeature(
-    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> AcousticEchoCancelerEffect::setCurrentConfigForFeature(
-    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> AcousticEchoCancelerEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IAcousticEchoCancelerEffect
-// follow.
-Return<Result> AcousticEchoCancelerEffect::setEchoDelay(uint32_t echoDelayMs) {
-    return mEffect->setParam(AEC_PARAM_ECHO_DELAY, echoDelayMs);
-}
-
-Return<void> AcousticEchoCancelerEffect::getEchoDelay(getEchoDelay_cb _hidl_cb) {
-    return mEffect->getIntegerParam(AEC_PARAM_ECHO_DELAY, _hidl_cb);
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/AudioBufferManager.h b/audio/effect/all-versions/default/include/effect/all-versions/default/AudioBufferManager.h
deleted file mode 100644
index 34dea2d..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/AudioBufferManager.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <mutex>
-
-#include <android/hidl/memory/1.0/IMemory.h>
-#include <system/audio_effect.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/Singleton.h>
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hidl::memory::V1_0::IMemory;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-class AudioBufferWrapper : public RefBase {
-   public:
-    explicit AudioBufferWrapper(const AudioBuffer& buffer);
-    virtual ~AudioBufferWrapper();
-    bool init();
-    audio_buffer_t* getHalBuffer() { return &mHalBuffer; }
-
-   private:
-    AudioBufferWrapper(const AudioBufferWrapper&) = delete;
-    void operator=(AudioBufferWrapper) = delete;
-
-    AudioBuffer mHidlBuffer;
-    sp<IMemory> mHidlMemory;
-    audio_buffer_t mHalBuffer;
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::implementation::AudioBufferWrapper;
-
-namespace android {
-
-// This class needs to be in 'android' ns because Singleton macros require that.
-class AudioBufferManager : public Singleton<AudioBufferManager> {
-   public:
-    bool wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper);
-
-   private:
-    friend class hardware::audio::effect::AUDIO_HAL_VERSION::implementation::AudioBufferWrapper;
-
-    // Called by AudioBufferWrapper.
-    void removeEntry(uint64_t id);
-
-    std::mutex mLock;
-    KeyedVector<uint64_t, wp<AudioBufferWrapper>> mBuffers;
-};
-
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/AudioBufferManager.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/AudioBufferManager.impl.h
deleted file mode 100644
index 71ccd2d..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/AudioBufferManager.impl.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <atomic>
-
-#include <hidlmemory/mapping.h>
-
-namespace android {
-
-ANDROID_SINGLETON_STATIC_INSTANCE(AudioBufferManager);
-
-bool AudioBufferManager::wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper) {
-    // Check if we have this buffer already
-    std::lock_guard<std::mutex> lock(mLock);
-    ssize_t idx = mBuffers.indexOfKey(buffer.id);
-    if (idx >= 0) {
-        *wrapper = mBuffers[idx].promote();
-        if (*wrapper != nullptr) {
-            (*wrapper)->getHalBuffer()->frameCount = buffer.frameCount;
-            return true;
-        }
-        mBuffers.removeItemsAt(idx);
-    }
-    // Need to create and init a new AudioBufferWrapper.
-    sp<AudioBufferWrapper> tempBuffer(new AudioBufferWrapper(buffer));
-    if (!tempBuffer->init()) return false;
-    *wrapper = tempBuffer;
-    mBuffers.add(buffer.id, *wrapper);
-    return true;
-}
-
-void AudioBufferManager::removeEntry(uint64_t id) {
-    std::lock_guard<std::mutex> lock(mLock);
-    ssize_t idx = mBuffers.indexOfKey(id);
-    if (idx >= 0) mBuffers.removeItemsAt(idx);
-}
-
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-AudioBufferWrapper::AudioBufferWrapper(const AudioBuffer& buffer)
-    : mHidlBuffer(buffer), mHalBuffer{0, {nullptr}} {}
-
-AudioBufferWrapper::~AudioBufferWrapper() {
-    AudioBufferManager::getInstance().removeEntry(mHidlBuffer.id);
-}
-
-bool AudioBufferWrapper::init() {
-    if (mHalBuffer.raw != nullptr) {
-        ALOGE("An attempt to init AudioBufferWrapper twice");
-        return false;
-    }
-    mHidlMemory = mapMemory(mHidlBuffer.data);
-    if (mHidlMemory == nullptr) {
-        ALOGE("Could not map HIDL memory to IMemory");
-        return false;
-    }
-    mHalBuffer.raw = static_cast<void*>(mHidlMemory->getPointer());
-    if (mHalBuffer.raw == nullptr) {
-        ALOGE("IMemory buffer pointer is null");
-        return false;
-    }
-    mHalBuffer.frameCount = mHidlBuffer.frameCount;
-    return true;
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/AutomaticGainControlEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/AutomaticGainControlEffect.h
deleted file mode 100644
index 5ac43eb..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/AutomaticGainControlEffect.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <system/audio_effects/effect_agc.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IAutomaticGainControlEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct AutomaticGainControlEffect : public IAutomaticGainControlEffect {
-    explicit AutomaticGainControlEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from
-    // ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IAutomaticGainControlEffect follow.
-    Return<Result> setTargetLevel(int16_t targetLevelMb) override;
-    Return<void> getTargetLevel(getTargetLevel_cb _hidl_cb) override;
-    Return<Result> setCompGain(int16_t compGainMb) override;
-    Return<void> getCompGain(getCompGain_cb _hidl_cb) override;
-    Return<Result> setLimiterEnabled(bool enabled) override;
-    Return<void> isLimiterEnabled(isLimiterEnabled_cb _hidl_cb) override;
-    Return<Result> setAllProperties(
-        const IAutomaticGainControlEffect::AllProperties& properties) override;
-    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~AutomaticGainControlEffect();
-
-    void propertiesFromHal(const t_agc_settings& halProperties,
-                           IAutomaticGainControlEffect::AllProperties* properties);
-    void propertiesToHal(const IAutomaticGainControlEffect::AllProperties& properties,
-                         t_agc_settings* halProperties);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/AutomaticGainControlEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/AutomaticGainControlEffect.impl.h
deleted file mode 100644
index e2e751e..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/AutomaticGainControlEffect.impl.h
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-AutomaticGainControlEffect::AutomaticGainControlEffect(effect_handle_t handle)
-    : mEffect(new Effect(handle)) {}
-
-AutomaticGainControlEffect::~AutomaticGainControlEffect() {}
-
-void AutomaticGainControlEffect::propertiesFromHal(
-    const t_agc_settings& halProperties, IAutomaticGainControlEffect::AllProperties* properties) {
-    properties->targetLevelMb = halProperties.targetLevel;
-    properties->compGainMb = halProperties.compGain;
-    properties->limiterEnabled = halProperties.limiterEnabled;
-}
-
-void AutomaticGainControlEffect::propertiesToHal(
-    const IAutomaticGainControlEffect::AllProperties& properties, t_agc_settings* halProperties) {
-    halProperties->targetLevel = properties.targetLevelMb;
-    halProperties->compGain = properties.compGainMb;
-    halProperties->limiterEnabled = properties.limiterEnabled;
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> AutomaticGainControlEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> AutomaticGainControlEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> AutomaticGainControlEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> AutomaticGainControlEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> AutomaticGainControlEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> AutomaticGainControlEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> AutomaticGainControlEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                         setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::volumeChangeNotification(
-    const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> AutomaticGainControlEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> AutomaticGainControlEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> AutomaticGainControlEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> AutomaticGainControlEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> AutomaticGainControlEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> AutomaticGainControlEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> AutomaticGainControlEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setAuxChannelsConfig(
-    const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> AutomaticGainControlEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> AutomaticGainControlEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> AutomaticGainControlEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> AutomaticGainControlEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                             const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> AutomaticGainControlEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                                 uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                                        const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> AutomaticGainControlEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                                      uint32_t valueMaxSize,
-                                                      getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> AutomaticGainControlEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> AutomaticGainControlEffect::getCurrentConfigForFeature(
-    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setCurrentConfigForFeature(
-    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> AutomaticGainControlEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IAutomaticGainControlEffect
-// follow.
-Return<Result> AutomaticGainControlEffect::setTargetLevel(int16_t targetLevelMb) {
-    return mEffect->setParam(AGC_PARAM_TARGET_LEVEL, targetLevelMb);
-}
-
-Return<void> AutomaticGainControlEffect::getTargetLevel(getTargetLevel_cb _hidl_cb) {
-    return mEffect->getIntegerParam(AGC_PARAM_TARGET_LEVEL, _hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setCompGain(int16_t compGainMb) {
-    return mEffect->setParam(AGC_PARAM_COMP_GAIN, compGainMb);
-}
-
-Return<void> AutomaticGainControlEffect::getCompGain(getCompGain_cb _hidl_cb) {
-    return mEffect->getIntegerParam(AGC_PARAM_COMP_GAIN, _hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setLimiterEnabled(bool enabled) {
-    return mEffect->setParam(AGC_PARAM_LIMITER_ENA, enabled);
-}
-
-Return<void> AutomaticGainControlEffect::isLimiterEnabled(isLimiterEnabled_cb _hidl_cb) {
-    return mEffect->getIntegerParam(AGC_PARAM_LIMITER_ENA, _hidl_cb);
-}
-
-Return<Result> AutomaticGainControlEffect::setAllProperties(
-    const IAutomaticGainControlEffect::AllProperties& properties) {
-    t_agc_settings halProperties;
-    propertiesToHal(properties, &halProperties);
-    return mEffect->setParam(AGC_PARAM_PROPERTIES, halProperties);
-}
-
-Return<void> AutomaticGainControlEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
-    t_agc_settings halProperties;
-    Result retval = mEffect->getParam(AGC_PARAM_PROPERTIES, halProperties);
-    AllProperties properties;
-    propertiesFromHal(halProperties, &properties);
-    _hidl_cb(retval, properties);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/BassBoostEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/BassBoostEffect.h
deleted file mode 100644
index 29173dd..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/BassBoostEffect.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IBassBoostEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct BassBoostEffect : public IBassBoostEffect {
-    explicit BassBoostEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IBassBoostEffect follow.
-    Return<void> isStrengthSupported(isStrengthSupported_cb _hidl_cb) override;
-    Return<Result> setStrength(uint16_t strength) override;
-    Return<void> getStrength(getStrength_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~BassBoostEffect();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/BassBoostEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/BassBoostEffect.impl.h
deleted file mode 100644
index 7bcb4a3..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/BassBoostEffect.impl.h
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_bassboost.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-BassBoostEffect::BassBoostEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
-
-BassBoostEffect::~BassBoostEffect() {}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> BassBoostEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> BassBoostEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> BassBoostEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> BassBoostEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> BassBoostEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> BassBoostEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> BassBoostEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                              setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> BassBoostEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> BassBoostEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> BassBoostEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> BassBoostEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> BassBoostEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> BassBoostEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> BassBoostEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> BassBoostEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> BassBoostEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> BassBoostEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> BassBoostEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> BassBoostEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> BassBoostEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> BassBoostEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                  const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> BassBoostEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                      uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> BassBoostEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                             const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> BassBoostEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                           uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> BassBoostEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> BassBoostEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                                         getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> BassBoostEffect::setCurrentConfigForFeature(uint32_t featureId,
-                                                           const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> BassBoostEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IBassBoostEffect follow.
-Return<void> BassBoostEffect::isStrengthSupported(isStrengthSupported_cb _hidl_cb) {
-    return mEffect->getIntegerParam(BASSBOOST_PARAM_STRENGTH_SUPPORTED, _hidl_cb);
-}
-
-Return<Result> BassBoostEffect::setStrength(uint16_t strength) {
-    return mEffect->setParam(BASSBOOST_PARAM_STRENGTH, strength);
-}
-
-Return<void> BassBoostEffect::getStrength(getStrength_cb _hidl_cb) {
-    return mEffect->getIntegerParam(BASSBOOST_PARAM_STRENGTH, _hidl_cb);
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/Conversions.h b/audio/effect/all-versions/default/include/effect/all-versions/default/Conversions.h
deleted file mode 100644
index 3f9317f..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/Conversions.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <string>
-
-#include <system/audio_effect.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-
-void effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
-                             EffectDescriptor* descriptor);
-std::string uuidToString(const effect_uuid_t& halUuid);
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/Conversions.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/Conversions.impl.h
deleted file mode 100644
index de67d89..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/Conversions.impl.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <memory.h>
-#include <stdio.h>
-
-#include <common/all-versions/VersionUtils.h>
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::HidlUtils;
-using ::android::hardware::audio::common::utils::mkEnumConverter;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-void effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
-                             EffectDescriptor* descriptor) {
-    HidlUtils::uuidFromHal(halDescriptor.type, &descriptor->type);
-    HidlUtils::uuidFromHal(halDescriptor.uuid, &descriptor->uuid);
-    descriptor->flags = mkEnumConverter<EffectFlags>(halDescriptor.flags);
-    descriptor->cpuLoad = halDescriptor.cpuLoad;
-    descriptor->memoryUsage = halDescriptor.memoryUsage;
-    memcpy(descriptor->name.data(), halDescriptor.name, descriptor->name.size());
-    memcpy(descriptor->implementor.data(), halDescriptor.implementor,
-           descriptor->implementor.size());
-}
-
-std::string uuidToString(const effect_uuid_t& halUuid) {
-    char str[64];
-    snprintf(str, sizeof(str), "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", halUuid.timeLow,
-             halUuid.timeMid, halUuid.timeHiAndVersion, halUuid.clockSeq, halUuid.node[0],
-             halUuid.node[1], halUuid.node[2], halUuid.node[3], halUuid.node[4], halUuid.node[5]);
-    return str;
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/DownmixEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/DownmixEffect.h
deleted file mode 100644
index 3e3aa78..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/DownmixEffect.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IDownmixEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct DownmixEffect : public IDownmixEffect {
-    explicit DownmixEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IDownmixEffect follow.
-    Return<Result> setType(IDownmixEffect::Type preset) override;
-    Return<void> getType(getType_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~DownmixEffect();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/DownmixEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/DownmixEffect.impl.h
deleted file mode 100644
index abef10e..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/DownmixEffect.impl.h
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_downmix.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-DownmixEffect::DownmixEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
-
-DownmixEffect::~DownmixEffect() {}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> DownmixEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> DownmixEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> DownmixEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> DownmixEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> DownmixEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> DownmixEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> DownmixEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                            setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> DownmixEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> DownmixEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> DownmixEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> DownmixEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> DownmixEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> DownmixEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> DownmixEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> DownmixEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> DownmixEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> DownmixEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> DownmixEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> DownmixEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> DownmixEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> DownmixEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> DownmixEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                    uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> DownmixEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                           const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> DownmixEffect::getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                                         getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> DownmixEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> DownmixEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                                       getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> DownmixEffect::setCurrentConfigForFeature(uint32_t featureId,
-                                                         const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> DownmixEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IDownmixEffect follow.
-Return<Result> DownmixEffect::setType(IDownmixEffect::Type preset) {
-    return mEffect->setParam(DOWNMIX_PARAM_TYPE, static_cast<downmix_type_t>(preset));
-}
-
-Return<void> DownmixEffect::getType(getType_cb _hidl_cb) {
-    downmix_type_t halPreset = DOWNMIX_TYPE_INVALID;
-    Result retval = mEffect->getParam(DOWNMIX_PARAM_TYPE, halPreset);
-    _hidl_cb(retval, Type(halPreset));
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/Effect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/Effect.h
deleted file mode 100644
index b546e0e..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/Effect.h
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <atomic>
-#include <memory>
-#include <vector>
-
-#include <fmq/EventFlag.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-#include <hidl/Status.h>
-#include <utils/Thread.h>
-
-#include <hardware/audio_effect.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::Uuid;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::implementation::AudioDeviceBitfield;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectFeature;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct Effect : public IEffect {
-    typedef MessageQueue<Result, kSynchronizedReadWrite> StatusMQ;
-    using GetParameterSuccessCallback =
-        std::function<void(uint32_t valueSize, const void* valueData)>;
-
-    explicit Effect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Utility methods for extending interfaces.
-    template <typename T>
-    Return<void> getIntegerParam(uint32_t paramId,
-                                 std::function<void(Result retval, T paramValue)> cb) {
-        T value;
-        Result retval = getParameterImpl(sizeof(uint32_t), &paramId, sizeof(T),
-                                         [&](uint32_t valueSize, const void* valueData) {
-                                             if (valueSize > sizeof(T)) valueSize = sizeof(T);
-                                             memcpy(&value, valueData, valueSize);
-                                         });
-        cb(retval, value);
-        return Void();
-    }
-
-    template <typename T>
-    Result getParam(uint32_t paramId, T& paramValue) {
-        return getParameterImpl(sizeof(uint32_t), &paramId, sizeof(T),
-                                [&](uint32_t valueSize, const void* valueData) {
-                                    if (valueSize > sizeof(T)) valueSize = sizeof(T);
-                                    memcpy(&paramValue, valueData, valueSize);
-                                });
-    }
-
-    template <typename T>
-    Result getParam(uint32_t paramId, uint32_t paramArg, T& paramValue) {
-        uint32_t params[2] = {paramId, paramArg};
-        return getParameterImpl(sizeof(params), params, sizeof(T),
-                                [&](uint32_t valueSize, const void* valueData) {
-                                    if (valueSize > sizeof(T)) valueSize = sizeof(T);
-                                    memcpy(&paramValue, valueData, valueSize);
-                                });
-    }
-
-    template <typename T>
-    Result setParam(uint32_t paramId, const T& paramValue) {
-        return setParameterImpl(sizeof(uint32_t), &paramId, sizeof(T), &paramValue);
-    }
-
-    template <typename T>
-    Result setParam(uint32_t paramId, uint32_t paramArg, const T& paramValue) {
-        uint32_t params[2] = {paramId, paramArg};
-        return setParameterImpl(sizeof(params), params, sizeof(T), &paramValue);
-    }
-
-    Result getParameterImpl(uint32_t paramSize, const void* paramData, uint32_t valueSize,
-                            GetParameterSuccessCallback onSuccess) {
-        return getParameterImpl(paramSize, paramData, valueSize, valueSize, onSuccess);
-    }
-    Result getParameterImpl(uint32_t paramSize, const void* paramData, uint32_t requestValueSize,
-                            uint32_t replyValueSize, GetParameterSuccessCallback onSuccess);
-    Result setParameterImpl(uint32_t paramSize, const void* paramData, uint32_t valueSize,
-                            const void* valueData);
-
-   private:
-    friend struct VirtualizerEffect;  // for getParameterImpl
-    friend struct VisualizerEffect;   // to allow executing commands
-
-    using CommandSuccessCallback = std::function<void()>;
-    using GetConfigCallback = std::function<void(Result retval, const EffectConfig& config)>;
-    using GetCurrentConfigSuccessCallback = std::function<void(void* configData)>;
-    using GetSupportedConfigsSuccessCallback =
-        std::function<void(uint32_t supportedConfigs, void* configsData)>;
-
-    static const char* sContextResultOfCommand;
-    static const char* sContextCallToCommand;
-    static const char* sContextCallFunction;
-
-    bool mIsClosed;
-    effect_handle_t mHandle;
-    sp<AudioBufferWrapper> mInBuffer;
-    sp<AudioBufferWrapper> mOutBuffer;
-    std::atomic<audio_buffer_t*> mHalInBufferPtr;
-    std::atomic<audio_buffer_t*> mHalOutBufferPtr;
-    std::unique_ptr<StatusMQ> mStatusMQ;
-    EventFlag* mEfGroup;
-    std::atomic<bool> mStopProcessThread;
-    sp<Thread> mProcessThread;
-
-    virtual ~Effect();
-
-    template <typename T>
-    static size_t alignedSizeIn(size_t s);
-    template <typename T>
-    std::unique_ptr<uint8_t[]> hidlVecToHal(const hidl_vec<T>& vec, uint32_t* halDataSize);
-    static void effectAuxChannelsConfigFromHal(const channel_config_t& halConfig,
-                                               EffectAuxChannelsConfig* config);
-    static void effectAuxChannelsConfigToHal(const EffectAuxChannelsConfig& config,
-                                             channel_config_t* halConfig);
-    static void effectBufferConfigFromHal(const buffer_config_t& halConfig,
-                                          EffectBufferConfig* config);
-    static void effectBufferConfigToHal(const EffectBufferConfig& config,
-                                        buffer_config_t* halConfig);
-    static void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config);
-    static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig);
-    static void effectOffloadParamToHal(const EffectOffloadParameter& offload,
-                                        effect_offload_param_t* halOffload);
-    static std::vector<uint8_t> parameterToHal(uint32_t paramSize, const void* paramData,
-                                               uint32_t valueSize, const void** valueData);
-
-    Result analyzeCommandStatus(const char* commandName, const char* context, status_t status);
-    Result analyzeStatus(const char* funcName, const char* subFuncName,
-                         const char* contextDescription, status_t status);
-    void getConfigImpl(int commandCode, const char* commandName, GetConfigCallback cb);
-    Result getCurrentConfigImpl(uint32_t featureId, uint32_t configSize,
-                                GetCurrentConfigSuccessCallback onSuccess);
-    Result getSupportedConfigsImpl(uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-                                   GetSupportedConfigsSuccessCallback onSuccess);
-    Result sendCommand(int commandCode, const char* commandName);
-    Result sendCommand(int commandCode, const char* commandName, uint32_t size, void* data);
-    Result sendCommandReturningData(int commandCode, const char* commandName, uint32_t* replySize,
-                                    void* replyData);
-    Result sendCommandReturningData(int commandCode, const char* commandName, uint32_t size,
-                                    void* data, uint32_t* replySize, void* replyData);
-    Result sendCommandReturningStatus(int commandCode, const char* commandName);
-    Result sendCommandReturningStatus(int commandCode, const char* commandName, uint32_t size,
-                                      void* data);
-    Result sendCommandReturningStatusAndData(int commandCode, const char* commandName,
-                                             uint32_t size, void* data, uint32_t* replySize,
-                                             void* replyData, uint32_t minReplySize,
-                                             CommandSuccessCallback onSuccess);
-    Result setConfigImpl(int commandCode, const char* commandName, const EffectConfig& config,
-                         const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-                         const sp<IEffectBufferProviderCallback>& outputBufferProvider);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/Effect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/Effect.impl.h
deleted file mode 100644
index 61c9805..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/Effect.impl.h
+++ /dev/null
@@ -1,714 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <memory.h>
-
-#define ATRACE_TAG ATRACE_TAG_AUDIO
-
-#include <android/log.h>
-#include <media/EffectsFactoryApi.h>
-#include <utils/Trace.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioChannelMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioFormat;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::implementation::AudioChannelBitfield;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::MessageQueueFlagBits;
-
-namespace {
-
-class ProcessThread : public Thread {
-   public:
-    // ProcessThread's lifespan never exceeds Effect's lifespan.
-    ProcessThread(std::atomic<bool>* stop, effect_handle_t effect,
-                  std::atomic<audio_buffer_t*>* inBuffer, std::atomic<audio_buffer_t*>* outBuffer,
-                  Effect::StatusMQ* statusMQ, EventFlag* efGroup)
-        : Thread(false /*canCallJava*/),
-          mStop(stop),
-          mEffect(effect),
-          mHasProcessReverse((*mEffect)->process_reverse != NULL),
-          mInBuffer(inBuffer),
-          mOutBuffer(outBuffer),
-          mStatusMQ(statusMQ),
-          mEfGroup(efGroup) {}
-    virtual ~ProcessThread() {}
-
-   private:
-    std::atomic<bool>* mStop;
-    effect_handle_t mEffect;
-    bool mHasProcessReverse;
-    std::atomic<audio_buffer_t*>* mInBuffer;
-    std::atomic<audio_buffer_t*>* mOutBuffer;
-    Effect::StatusMQ* mStatusMQ;
-    EventFlag* mEfGroup;
-
-    bool threadLoop() override;
-};
-
-bool ProcessThread::threadLoop() {
-    // This implementation doesn't return control back to the Thread until it decides to stop,
-    // as the Thread uses mutexes, and this can lead to priority inversion.
-    while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
-        uint32_t efState = 0;
-        mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_ALL), &efState);
-        if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_ALL)) ||
-            (efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_QUIT))) {
-            continue;  // Nothing to do or time to quit.
-        }
-        Result retval = Result::OK;
-        if (efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_REVERSE) &&
-            !mHasProcessReverse) {
-            retval = Result::NOT_SUPPORTED;
-        }
-
-        if (retval == Result::OK) {
-            // affects both buffer pointers and their contents.
-            std::atomic_thread_fence(std::memory_order_acquire);
-            int32_t processResult;
-            audio_buffer_t* inBuffer =
-                std::atomic_load_explicit(mInBuffer, std::memory_order_relaxed);
-            audio_buffer_t* outBuffer =
-                std::atomic_load_explicit(mOutBuffer, std::memory_order_relaxed);
-            if (inBuffer != nullptr && outBuffer != nullptr) {
-                if (efState & static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS)) {
-                    processResult = (*mEffect)->process(mEffect, inBuffer, outBuffer);
-                } else {
-                    processResult = (*mEffect)->process_reverse(mEffect, inBuffer, outBuffer);
-                }
-                std::atomic_thread_fence(std::memory_order_release);
-            } else {
-                ALOGE("processing buffers were not set before calling 'process'");
-                processResult = -ENODEV;
-            }
-            switch (processResult) {
-                case 0:
-                    retval = Result::OK;
-                    break;
-                case -ENODATA:
-                    retval = Result::INVALID_STATE;
-                    break;
-                case -EINVAL:
-                    retval = Result::INVALID_ARGUMENTS;
-                    break;
-                default:
-                    retval = Result::NOT_INITIALIZED;
-            }
-        }
-        if (!mStatusMQ->write(&retval)) {
-            ALOGW("status message queue write failed");
-        }
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING));
-    }
-
-    return false;
-}
-
-}  // namespace
-
-// static
-const char* Effect::sContextResultOfCommand = "returned status";
-const char* Effect::sContextCallToCommand = "error";
-const char* Effect::sContextCallFunction = sContextCallToCommand;
-
-Effect::Effect(effect_handle_t handle)
-    : mIsClosed(false), mHandle(handle), mEfGroup(nullptr), mStopProcessThread(false) {}
-
-Effect::~Effect() {
-    ATRACE_CALL();
-    close();
-    if (mProcessThread.get()) {
-        ATRACE_NAME("mProcessThread->join");
-        status_t status = mProcessThread->join();
-        ALOGE_IF(status, "processing thread exit error: %s", strerror(-status));
-    }
-    if (mEfGroup) {
-        status_t status = EventFlag::deleteEventFlag(&mEfGroup);
-        ALOGE_IF(status, "processing MQ event flag deletion error: %s", strerror(-status));
-    }
-    mInBuffer.clear();
-    mOutBuffer.clear();
-    int status = EffectRelease(mHandle);
-    ALOGW_IF(status, "Error releasing effect %p: %s", mHandle, strerror(-status));
-    EffectMap::getInstance().remove(mHandle);
-    mHandle = 0;
-}
-
-// static
-template <typename T>
-size_t Effect::alignedSizeIn(size_t s) {
-    return (s + sizeof(T) - 1) / sizeof(T);
-}
-
-// static
-template <typename T>
-std::unique_ptr<uint8_t[]> Effect::hidlVecToHal(const hidl_vec<T>& vec, uint32_t* halDataSize) {
-    // Due to bugs in HAL, they may attempt to write into the provided
-    // input buffer. The original binder buffer is r/o, thus it is needed
-    // to create a r/w version.
-    *halDataSize = vec.size() * sizeof(T);
-    std::unique_ptr<uint8_t[]> halData(new uint8_t[*halDataSize]);
-    memcpy(&halData[0], &vec[0], *halDataSize);
-    return halData;
-}
-
-// static
-void Effect::effectAuxChannelsConfigFromHal(const channel_config_t& halConfig,
-                                            EffectAuxChannelsConfig* config) {
-    config->mainChannels = AudioChannelBitfield(halConfig.main_channels);
-    config->auxChannels = AudioChannelBitfield(halConfig.aux_channels);
-}
-
-// static
-void Effect::effectAuxChannelsConfigToHal(const EffectAuxChannelsConfig& config,
-                                          channel_config_t* halConfig) {
-    halConfig->main_channels = static_cast<audio_channel_mask_t>(config.mainChannels);
-    halConfig->aux_channels = static_cast<audio_channel_mask_t>(config.auxChannels);
-}
-
-// static
-void Effect::effectBufferConfigFromHal(const buffer_config_t& halConfig,
-                                       EffectBufferConfig* config) {
-    config->buffer.id = 0;
-    config->buffer.frameCount = 0;
-    config->samplingRateHz = halConfig.samplingRate;
-    config->channels = AudioChannelBitfield(halConfig.channels);
-    config->format = AudioFormat(halConfig.format);
-    config->accessMode = EffectBufferAccess(halConfig.accessMode);
-    config->mask = static_cast<decltype(config->mask)>(halConfig.mask);
-}
-
-// static
-void Effect::effectBufferConfigToHal(const EffectBufferConfig& config, buffer_config_t* halConfig) {
-    // Note: setting the buffers directly is considered obsolete. They need to be set
-    // using 'setProcessBuffers'.
-    halConfig->buffer.frameCount = 0;
-    halConfig->buffer.raw = NULL;
-    halConfig->samplingRate = config.samplingRateHz;
-    halConfig->channels = static_cast<uint32_t>(config.channels);
-    // Note: The framework code does not use BP.
-    halConfig->bufferProvider.cookie = NULL;
-    halConfig->bufferProvider.getBuffer = NULL;
-    halConfig->bufferProvider.releaseBuffer = NULL;
-    halConfig->format = static_cast<uint8_t>(config.format);
-    halConfig->accessMode = static_cast<uint8_t>(config.accessMode);
-    halConfig->mask = static_cast<uint8_t>(config.mask);
-}
-
-// static
-void Effect::effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config) {
-    effectBufferConfigFromHal(halConfig.inputCfg, &config->inputCfg);
-    effectBufferConfigFromHal(halConfig.outputCfg, &config->outputCfg);
-}
-
-// static
-void Effect::effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig) {
-    effectBufferConfigToHal(config.inputCfg, &halConfig->inputCfg);
-    effectBufferConfigToHal(config.outputCfg, &halConfig->outputCfg);
-}
-
-// static
-void Effect::effectOffloadParamToHal(const EffectOffloadParameter& offload,
-                                     effect_offload_param_t* halOffload) {
-    halOffload->isOffload = offload.isOffload;
-    halOffload->ioHandle = offload.ioHandle;
-}
-
-// static
-std::vector<uint8_t> Effect::parameterToHal(uint32_t paramSize, const void* paramData,
-                                            uint32_t valueSize, const void** valueData) {
-    size_t valueOffsetFromData = alignedSizeIn<uint32_t>(paramSize) * sizeof(uint32_t);
-    size_t halParamBufferSize = sizeof(effect_param_t) + valueOffsetFromData + valueSize;
-    std::vector<uint8_t> halParamBuffer(halParamBufferSize, 0);
-    effect_param_t* halParam = reinterpret_cast<effect_param_t*>(&halParamBuffer[0]);
-    halParam->psize = paramSize;
-    halParam->vsize = valueSize;
-    memcpy(halParam->data, paramData, paramSize);
-    if (valueData) {
-        if (*valueData) {
-            // Value data is provided.
-            memcpy(halParam->data + valueOffsetFromData, *valueData, valueSize);
-        } else {
-            // The caller needs the pointer to the value data location.
-            *valueData = halParam->data + valueOffsetFromData;
-        }
-    }
-    return halParamBuffer;
-}
-
-Result Effect::analyzeCommandStatus(const char* commandName, const char* context, status_t status) {
-    return analyzeStatus("command", commandName, context, status);
-}
-
-Result Effect::analyzeStatus(const char* funcName, const char* subFuncName,
-                             const char* contextDescription, status_t status) {
-    if (status != OK) {
-        ALOGW("Effect %p %s %s %s: %s", mHandle, funcName, subFuncName, contextDescription,
-              strerror(-status));
-    }
-    switch (status) {
-        case OK:
-            return Result::OK;
-        case -EINVAL:
-            return Result::INVALID_ARGUMENTS;
-        case -ENODATA:
-            return Result::INVALID_STATE;
-        case -ENODEV:
-            return Result::NOT_INITIALIZED;
-        case -ENOMEM:
-            return Result::RESULT_TOO_BIG;
-        case -ENOSYS:
-            return Result::NOT_SUPPORTED;
-        default:
-            return Result::INVALID_STATE;
-    }
-}
-
-void Effect::getConfigImpl(int commandCode, const char* commandName, GetConfigCallback cb) {
-    uint32_t halResultSize = sizeof(effect_config_t);
-    effect_config_t halConfig{};
-    status_t status =
-        (*mHandle)->command(mHandle, commandCode, 0, NULL, &halResultSize, &halConfig);
-    EffectConfig config;
-    if (status == OK) {
-        effectConfigFromHal(halConfig, &config);
-    }
-    cb(analyzeCommandStatus(commandName, sContextCallToCommand, status), config);
-}
-
-Result Effect::getCurrentConfigImpl(uint32_t featureId, uint32_t configSize,
-                                    GetCurrentConfigSuccessCallback onSuccess) {
-    uint32_t halCmd = featureId;
-    uint32_t halResult[alignedSizeIn<uint32_t>(sizeof(uint32_t) + configSize)];
-    memset(halResult, 0, sizeof(halResult));
-    uint32_t halResultSize = 0;
-    return sendCommandReturningStatusAndData(EFFECT_CMD_GET_FEATURE_CONFIG, "GET_FEATURE_CONFIG",
-                                             sizeof(uint32_t), &halCmd, &halResultSize, halResult,
-                                             sizeof(uint32_t), [&] { onSuccess(&halResult[1]); });
-}
-
-Result Effect::getParameterImpl(uint32_t paramSize, const void* paramData,
-                                uint32_t requestValueSize, uint32_t replyValueSize,
-                                GetParameterSuccessCallback onSuccess) {
-    // As it is unknown what method HAL uses for copying the provided parameter data,
-    // it is safer to make sure that input and output buffers do not overlap.
-    std::vector<uint8_t> halCmdBuffer =
-        parameterToHal(paramSize, paramData, requestValueSize, nullptr);
-    const void* valueData = nullptr;
-    std::vector<uint8_t> halParamBuffer =
-        parameterToHal(paramSize, paramData, replyValueSize, &valueData);
-    uint32_t halParamBufferSize = halParamBuffer.size();
-
-    return sendCommandReturningStatusAndData(
-        EFFECT_CMD_GET_PARAM, "GET_PARAM", halCmdBuffer.size(), &halCmdBuffer[0],
-        &halParamBufferSize, &halParamBuffer[0], sizeof(effect_param_t), [&] {
-            effect_param_t* halParam = reinterpret_cast<effect_param_t*>(&halParamBuffer[0]);
-            onSuccess(halParam->vsize, valueData);
-        });
-}
-
-Result Effect::getSupportedConfigsImpl(uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-                                       GetSupportedConfigsSuccessCallback onSuccess) {
-    uint32_t halCmd[2] = {featureId, maxConfigs};
-    uint32_t halResultSize = 2 * sizeof(uint32_t) + maxConfigs * sizeof(configSize);
-    uint8_t halResult[halResultSize];
-    memset(&halResult[0], 0, halResultSize);
-    return sendCommandReturningStatusAndData(
-        EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS, "GET_FEATURE_SUPPORTED_CONFIGS", sizeof(halCmd),
-        halCmd, &halResultSize, &halResult[0], 2 * sizeof(uint32_t), [&] {
-            uint32_t* halResult32 = reinterpret_cast<uint32_t*>(&halResult[0]);
-            uint32_t supportedConfigs = *(++halResult32);  // skip status field
-            if (supportedConfigs > maxConfigs) supportedConfigs = maxConfigs;
-            onSuccess(supportedConfigs, ++halResult32);
-        });
-}
-
-Return<void> Effect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    status_t status;
-    // Create message queue.
-    if (mStatusMQ) {
-        ALOGE("the client attempts to call prepareForProcessing_cb twice");
-        _hidl_cb(Result::INVALID_STATE, StatusMQ::Descriptor());
-        return Void();
-    }
-    std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1, true /*EventFlag*/));
-    if (!tempStatusMQ->isValid()) {
-        ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
-        _hidl_cb(Result::INVALID_ARGUMENTS, StatusMQ::Descriptor());
-        return Void();
-    }
-    status = EventFlag::createEventFlag(tempStatusMQ->getEventFlagWord(), &mEfGroup);
-    if (status != OK || !mEfGroup) {
-        ALOGE("failed creating event flag for status MQ: %s", strerror(-status));
-        _hidl_cb(Result::INVALID_ARGUMENTS, StatusMQ::Descriptor());
-        return Void();
-    }
-
-    // Create and launch the thread.
-    mProcessThread = new ProcessThread(&mStopProcessThread, mHandle, &mHalInBufferPtr,
-                                       &mHalOutBufferPtr, tempStatusMQ.get(), mEfGroup);
-    status = mProcessThread->run("effect", PRIORITY_URGENT_AUDIO);
-    if (status != OK) {
-        ALOGW("failed to start effect processing thread: %s", strerror(-status));
-        _hidl_cb(Result::INVALID_ARGUMENTS, MQDescriptorSync<Result>());
-        return Void();
-    }
-
-    mStatusMQ = std::move(tempStatusMQ);
-    _hidl_cb(Result::OK, *mStatusMQ->getDesc());
-    return Void();
-}
-
-Return<Result> Effect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                         const AudioBuffer& outBuffer) {
-    AudioBufferManager& manager = AudioBufferManager::getInstance();
-    sp<AudioBufferWrapper> tempInBuffer, tempOutBuffer;
-    if (!manager.wrap(inBuffer, &tempInBuffer)) {
-        ALOGE("Could not map memory of the input buffer");
-        return Result::INVALID_ARGUMENTS;
-    }
-    if (!manager.wrap(outBuffer, &tempOutBuffer)) {
-        ALOGE("Could not map memory of the output buffer");
-        return Result::INVALID_ARGUMENTS;
-    }
-    mInBuffer = tempInBuffer;
-    mOutBuffer = tempOutBuffer;
-    // The processing thread only reads these pointers after waking up by an event flag,
-    // so it's OK to update the pair non-atomically.
-    mHalInBufferPtr.store(mInBuffer->getHalBuffer(), std::memory_order_release);
-    mHalOutBufferPtr.store(mOutBuffer->getHalBuffer(), std::memory_order_release);
-    return Result::OK;
-}
-
-Result Effect::sendCommand(int commandCode, const char* commandName) {
-    return sendCommand(commandCode, commandName, 0, NULL);
-}
-
-Result Effect::sendCommand(int commandCode, const char* commandName, uint32_t size, void* data) {
-    status_t status = (*mHandle)->command(mHandle, commandCode, size, data, 0, NULL);
-    return analyzeCommandStatus(commandName, sContextCallToCommand, status);
-}
-
-Result Effect::sendCommandReturningData(int commandCode, const char* commandName,
-                                        uint32_t* replySize, void* replyData) {
-    return sendCommandReturningData(commandCode, commandName, 0, NULL, replySize, replyData);
-}
-
-Result Effect::sendCommandReturningData(int commandCode, const char* commandName, uint32_t size,
-                                        void* data, uint32_t* replySize, void* replyData) {
-    uint32_t expectedReplySize = *replySize;
-    status_t status = (*mHandle)->command(mHandle, commandCode, size, data, replySize, replyData);
-    if (status == OK && *replySize != expectedReplySize) {
-        status = -ENODATA;
-    }
-    return analyzeCommandStatus(commandName, sContextCallToCommand, status);
-}
-
-Result Effect::sendCommandReturningStatus(int commandCode, const char* commandName) {
-    return sendCommandReturningStatus(commandCode, commandName, 0, NULL);
-}
-
-Result Effect::sendCommandReturningStatus(int commandCode, const char* commandName, uint32_t size,
-                                          void* data) {
-    uint32_t replyCmdStatus;
-    uint32_t replySize = sizeof(uint32_t);
-    return sendCommandReturningStatusAndData(commandCode, commandName, size, data, &replySize,
-                                             &replyCmdStatus, replySize, [] {});
-}
-
-Result Effect::sendCommandReturningStatusAndData(int commandCode, const char* commandName,
-                                                 uint32_t size, void* data, uint32_t* replySize,
-                                                 void* replyData, uint32_t minReplySize,
-                                                 CommandSuccessCallback onSuccess) {
-    status_t status = (*mHandle)->command(mHandle, commandCode, size, data, replySize, replyData);
-    Result retval;
-    if (status == OK && minReplySize >= sizeof(uint32_t) && *replySize >= minReplySize) {
-        uint32_t commandStatus = *reinterpret_cast<uint32_t*>(replyData);
-        retval = analyzeCommandStatus(commandName, sContextResultOfCommand, commandStatus);
-        if (commandStatus == OK) {
-            onSuccess();
-        }
-    } else {
-        retval = analyzeCommandStatus(commandName, sContextCallToCommand, status);
-    }
-    return retval;
-}
-
-Result Effect::setConfigImpl(int commandCode, const char* commandName, const EffectConfig& config,
-                             const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-                             const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    effect_config_t halConfig;
-    effectConfigToHal(config, &halConfig);
-    if (inputBufferProvider != 0) {
-        LOG_FATAL("Using input buffer provider is not supported");
-    }
-    if (outputBufferProvider != 0) {
-        LOG_FATAL("Using output buffer provider is not supported");
-    }
-    return sendCommandReturningStatus(commandCode, commandName, sizeof(effect_config_t),
-                                      &halConfig);
-}
-
-Result Effect::setParameterImpl(uint32_t paramSize, const void* paramData, uint32_t valueSize,
-                                const void* valueData) {
-    std::vector<uint8_t> halParamBuffer =
-        parameterToHal(paramSize, paramData, valueSize, &valueData);
-    return sendCommandReturningStatus(EFFECT_CMD_SET_PARAM, "SET_PARAM", halParamBuffer.size(),
-                                      &halParamBuffer[0]);
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> Effect::init() {
-    return sendCommandReturningStatus(EFFECT_CMD_INIT, "INIT");
-}
-
-Return<Result> Effect::setConfig(const EffectConfig& config,
-                                 const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-                                 const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return setConfigImpl(EFFECT_CMD_SET_CONFIG, "SET_CONFIG", config, inputBufferProvider,
-                         outputBufferProvider);
-}
-
-Return<Result> Effect::reset() {
-    return sendCommand(EFFECT_CMD_RESET, "RESET");
-}
-
-Return<Result> Effect::enable() {
-    return sendCommandReturningStatus(EFFECT_CMD_ENABLE, "ENABLE");
-}
-
-Return<Result> Effect::disable() {
-    return sendCommandReturningStatus(EFFECT_CMD_DISABLE, "DISABLE");
-}
-
-Return<Result> Effect::setDevice(AudioDeviceBitfield device) {
-    uint32_t halDevice = static_cast<uint32_t>(device);
-    return sendCommand(EFFECT_CMD_SET_DEVICE, "SET_DEVICE", sizeof(uint32_t), &halDevice);
-}
-
-Return<void> Effect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                     setAndGetVolume_cb _hidl_cb) {
-    uint32_t halDataSize;
-    std::unique_ptr<uint8_t[]> halData = hidlVecToHal(volumes, &halDataSize);
-    uint32_t halResultSize = halDataSize;
-    uint32_t halResult[volumes.size()];
-    Result retval = sendCommandReturningData(EFFECT_CMD_SET_VOLUME, "SET_VOLUME", halDataSize,
-                                             &halData[0], &halResultSize, halResult);
-    hidl_vec<uint32_t> result;
-    if (retval == Result::OK) {
-        result.setToExternal(&halResult[0], halResultSize);
-    }
-    _hidl_cb(retval, result);
-    return Void();
-}
-
-Return<Result> Effect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    uint32_t halDataSize;
-    std::unique_ptr<uint8_t[]> halData = hidlVecToHal(volumes, &halDataSize);
-    return sendCommand(EFFECT_CMD_SET_VOLUME, "SET_VOLUME", halDataSize, &halData[0]);
-}
-
-Return<Result> Effect::setAudioMode(AudioMode mode) {
-    uint32_t halMode = static_cast<uint32_t>(mode);
-    return sendCommand(EFFECT_CMD_SET_AUDIO_MODE, "SET_AUDIO_MODE", sizeof(uint32_t), &halMode);
-}
-
-Return<Result> Effect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return setConfigImpl(EFFECT_CMD_SET_CONFIG_REVERSE, "SET_CONFIG_REVERSE", config,
-                         inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> Effect::setInputDevice(AudioDeviceBitfield device) {
-    uint32_t halDevice = static_cast<uint32_t>(device);
-    return sendCommand(EFFECT_CMD_SET_INPUT_DEVICE, "SET_INPUT_DEVICE", sizeof(uint32_t),
-                       &halDevice);
-}
-
-Return<void> Effect::getConfig(getConfig_cb _hidl_cb) {
-    getConfigImpl(EFFECT_CMD_GET_CONFIG, "GET_CONFIG", _hidl_cb);
-    return Void();
-}
-
-Return<void> Effect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    getConfigImpl(EFFECT_CMD_GET_CONFIG_REVERSE, "GET_CONFIG_REVERSE", _hidl_cb);
-    return Void();
-}
-
-Return<void> Effect::getSupportedAuxChannelsConfigs(uint32_t maxConfigs,
-                                                    getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    hidl_vec<EffectAuxChannelsConfig> result;
-    Result retval = getSupportedConfigsImpl(
-        EFFECT_FEATURE_AUX_CHANNELS, maxConfigs, sizeof(channel_config_t),
-        [&](uint32_t supportedConfigs, void* configsData) {
-            result.resize(supportedConfigs);
-            channel_config_t* config = reinterpret_cast<channel_config_t*>(configsData);
-            for (size_t i = 0; i < result.size(); ++i) {
-                effectAuxChannelsConfigFromHal(*config++, &result[i]);
-            }
-        });
-    _hidl_cb(retval, result);
-    return Void();
-}
-
-Return<void> Effect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    uint32_t halResult[alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t))];
-    memset(halResult, 0, sizeof(halResult));
-    EffectAuxChannelsConfig result;
-    Result retval = getCurrentConfigImpl(
-        EFFECT_FEATURE_AUX_CHANNELS, sizeof(channel_config_t), [&](void* configData) {
-            effectAuxChannelsConfigFromHal(*reinterpret_cast<channel_config_t*>(configData),
-                                           &result);
-        });
-    _hidl_cb(retval, result);
-    return Void();
-}
-
-Return<Result> Effect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    uint32_t halCmd[alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t))];
-    halCmd[0] = EFFECT_FEATURE_AUX_CHANNELS;
-    effectAuxChannelsConfigToHal(config, reinterpret_cast<channel_config_t*>(&halCmd[1]));
-    return sendCommandReturningStatus(EFFECT_CMD_SET_FEATURE_CONFIG,
-                                      "SET_FEATURE_CONFIG AUX_CHANNELS", sizeof(halCmd), halCmd);
-}
-
-Return<Result> Effect::setAudioSource(AudioSource source) {
-    uint32_t halSource = static_cast<uint32_t>(source);
-    return sendCommand(EFFECT_CMD_SET_AUDIO_SOURCE, "SET_AUDIO_SOURCE", sizeof(uint32_t),
-                       &halSource);
-}
-
-Return<Result> Effect::offload(const EffectOffloadParameter& param) {
-    effect_offload_param_t halParam;
-    effectOffloadParamToHal(param, &halParam);
-    return sendCommandReturningStatus(EFFECT_CMD_OFFLOAD, "OFFLOAD", sizeof(effect_offload_param_t),
-                                      &halParam);
-}
-
-Return<void> Effect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    effect_descriptor_t halDescriptor;
-    memset(&halDescriptor, 0, sizeof(effect_descriptor_t));
-    status_t status = (*mHandle)->get_descriptor(mHandle, &halDescriptor);
-    EffectDescriptor descriptor;
-    if (status == OK) {
-        effectDescriptorFromHal(halDescriptor, &descriptor);
-    }
-    _hidl_cb(analyzeStatus("get_descriptor", "", sContextCallFunction, status), descriptor);
-    return Void();
-}
-
-Return<void> Effect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                             uint32_t resultMaxSize, command_cb _hidl_cb) {
-    uint32_t halDataSize;
-    std::unique_ptr<uint8_t[]> halData = hidlVecToHal(data, &halDataSize);
-    uint32_t halResultSize = resultMaxSize;
-    std::unique_ptr<uint8_t[]> halResult(new uint8_t[halResultSize]);
-    memset(&halResult[0], 0, halResultSize);
-
-    void* dataPtr = halDataSize > 0 ? &halData[0] : NULL;
-    void* resultPtr = halResultSize > 0 ? &halResult[0] : NULL;
-    status_t status =
-        (*mHandle)->command(mHandle, commandId, halDataSize, dataPtr, &halResultSize, resultPtr);
-    hidl_vec<uint8_t> result;
-    if (status == OK && resultPtr != NULL) {
-        result.setToExternal(&halResult[0], halResultSize);
-    }
-    _hidl_cb(status, result);
-    return Void();
-}
-
-Return<Result> Effect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                    const hidl_vec<uint8_t>& value) {
-    return setParameterImpl(parameter.size(), &parameter[0], value.size(), &value[0]);
-}
-
-Return<void> Effect::getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                                  getParameter_cb _hidl_cb) {
-    hidl_vec<uint8_t> value;
-    Result retval = getParameterImpl(
-        parameter.size(), &parameter[0], valueMaxSize,
-        [&](uint32_t valueSize, const void* valueData) {
-            value.setToExternal(reinterpret_cast<uint8_t*>(const_cast<void*>(valueData)),
-                                valueSize);
-        });
-    _hidl_cb(retval, value);
-    return Void();
-}
-
-Return<void> Effect::getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                                   uint32_t configSize,
-                                                   getSupportedConfigsForFeature_cb _hidl_cb) {
-    uint32_t configCount = 0;
-    hidl_vec<uint8_t> result;
-    Result retval = getSupportedConfigsImpl(featureId, maxConfigs, configSize,
-                                            [&](uint32_t supportedConfigs, void* configsData) {
-                                                configCount = supportedConfigs;
-                                                result.resize(configCount * configSize);
-                                                memcpy(&result[0], configsData, result.size());
-                                            });
-    _hidl_cb(retval, configCount, result);
-    return Void();
-}
-
-Return<void> Effect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                                getCurrentConfigForFeature_cb _hidl_cb) {
-    hidl_vec<uint8_t> result;
-    Result retval = getCurrentConfigImpl(featureId, configSize, [&](void* configData) {
-        result.resize(configSize);
-        memcpy(&result[0], configData, result.size());
-    });
-    _hidl_cb(retval, result);
-    return Void();
-}
-
-Return<Result> Effect::setCurrentConfigForFeature(uint32_t featureId,
-                                                  const hidl_vec<uint8_t>& configData) {
-    uint32_t halCmd[alignedSizeIn<uint32_t>(sizeof(uint32_t) + configData.size())];
-    memset(halCmd, 0, sizeof(halCmd));
-    halCmd[0] = featureId;
-    memcpy(&halCmd[1], &configData[0], configData.size());
-    return sendCommandReturningStatus(EFFECT_CMD_SET_FEATURE_CONFIG, "SET_FEATURE_CONFIG",
-                                      sizeof(halCmd), halCmd);
-}
-
-Return<Result> Effect::close() {
-    if (mIsClosed) return Result::INVALID_STATE;
-    mIsClosed = true;
-    if (mProcessThread.get()) {
-        mStopProcessThread.store(true, std::memory_order_release);
-    }
-    if (mEfGroup) {
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_QUIT));
-    }
-    return Result::OK;
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/EffectsFactory.h b/audio/effect/all-versions/default/include/effect/all-versions/default/EffectsFactory.h
deleted file mode 100644
index 526abbb8..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/EffectsFactory.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hardware/audio_effect.h>
-#include <system/audio_effect.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::Uuid;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectsFactory;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct EffectsFactory : public IEffectsFactory {
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectsFactory follow.
-    Return<void> getAllDescriptors(getAllDescriptors_cb _hidl_cb) override;
-    Return<void> getDescriptor(const Uuid& uid, getDescriptor_cb _hidl_cb) override;
-    Return<void> createEffect(const Uuid& uid, int32_t session, int32_t ioHandle,
-                              createEffect_cb _hidl_cb) override;
-    Return<void> debugDump(const hidl_handle& fd); //< in V2_0::IEffectsFactory only, alias of debug
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
-
-   private:
-    static sp<IEffect> dispatchEffectInstanceCreation(const effect_descriptor_t& halDescriptor,
-                                                      effect_handle_t handle);
-};
-
-extern "C" IEffectsFactory* HIDL_FETCH_IEffectsFactory(const char* name);
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/EffectsFactory.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/EffectsFactory.impl.h
deleted file mode 100644
index b0351c9..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/EffectsFactory.impl.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-#include <media/EffectsFactoryApi.h>
-#include <system/audio_effects/effect_aec.h>
-#include <system/audio_effects/effect_agc.h>
-#include <system/audio_effects/effect_bassboost.h>
-#include <system/audio_effects/effect_downmix.h>
-#include <system/audio_effects/effect_environmentalreverb.h>
-#include <system/audio_effects/effect_equalizer.h>
-#include <system/audio_effects/effect_loudnessenhancer.h>
-#include <system/audio_effects/effect_ns.h>
-#include <system/audio_effects/effect_presetreverb.h>
-#include <system/audio_effects/effect_virtualizer.h>
-#include <system/audio_effects/effect_visualizer.h>
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::HidlUtils;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-// static
-sp<IEffect> EffectsFactory::dispatchEffectInstanceCreation(const effect_descriptor_t& halDescriptor,
-                                                           effect_handle_t handle) {
-    const effect_uuid_t* halUuid = &halDescriptor.type;
-    if (memcmp(halUuid, FX_IID_AEC, sizeof(effect_uuid_t)) == 0) {
-        return new AcousticEchoCancelerEffect(handle);
-    } else if (memcmp(halUuid, FX_IID_AGC, sizeof(effect_uuid_t)) == 0) {
-        return new AutomaticGainControlEffect(handle);
-    } else if (memcmp(halUuid, SL_IID_BASSBOOST, sizeof(effect_uuid_t)) == 0) {
-        return new BassBoostEffect(handle);
-    } else if (memcmp(halUuid, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
-        return new DownmixEffect(handle);
-    } else if (memcmp(halUuid, SL_IID_ENVIRONMENTALREVERB, sizeof(effect_uuid_t)) == 0) {
-        return new EnvironmentalReverbEffect(handle);
-    } else if (memcmp(halUuid, SL_IID_EQUALIZER, sizeof(effect_uuid_t)) == 0) {
-        return new EqualizerEffect(handle);
-    } else if (memcmp(halUuid, FX_IID_LOUDNESS_ENHANCER, sizeof(effect_uuid_t)) == 0) {
-        return new LoudnessEnhancerEffect(handle);
-    } else if (memcmp(halUuid, FX_IID_NS, sizeof(effect_uuid_t)) == 0) {
-        return new NoiseSuppressionEffect(handle);
-    } else if (memcmp(halUuid, SL_IID_PRESETREVERB, sizeof(effect_uuid_t)) == 0) {
-        return new PresetReverbEffect(handle);
-    } else if (memcmp(halUuid, SL_IID_VIRTUALIZER, sizeof(effect_uuid_t)) == 0) {
-        return new VirtualizerEffect(handle);
-    } else if (memcmp(halUuid, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) {
-        return new VisualizerEffect(handle);
-    }
-    return new Effect(handle);
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectsFactory follow.
-Return<void> EffectsFactory::getAllDescriptors(getAllDescriptors_cb _hidl_cb) {
-    Result retval(Result::OK);
-    hidl_vec<EffectDescriptor> result;
-    uint32_t numEffects;
-    status_t status;
-
-restart:
-    numEffects = 0;
-    status = EffectQueryNumberEffects(&numEffects);
-    if (status != OK) {
-        retval = Result::NOT_INITIALIZED;
-        ALOGE("Error querying number of effects: %s", strerror(-status));
-        goto exit;
-    }
-    result.resize(numEffects);
-    for (uint32_t i = 0; i < numEffects; ++i) {
-        effect_descriptor_t halDescriptor;
-        status = EffectQueryEffect(i, &halDescriptor);
-        if (status == OK) {
-            effectDescriptorFromHal(halDescriptor, &result[i]);
-        } else {
-            ALOGE("Error querying effect at position %d / %d: %s", i, numEffects,
-                  strerror(-status));
-            switch (status) {
-                case -ENOSYS: {
-                    // Effect list has changed.
-                    goto restart;
-                }
-                case -ENOENT: {
-                    // No more effects available.
-                    result.resize(i);
-                    break;
-                }
-                default: {
-                    result.resize(0);
-                    retval = Result::NOT_INITIALIZED;
-                }
-            }
-            break;
-        }
-    }
-
-exit:
-    _hidl_cb(retval, result);
-    return Void();
-}
-
-Return<void> EffectsFactory::getDescriptor(const Uuid& uid, getDescriptor_cb _hidl_cb) {
-    effect_uuid_t halUuid;
-    HidlUtils::uuidToHal(uid, &halUuid);
-    effect_descriptor_t halDescriptor;
-    status_t status = EffectGetDescriptor(&halUuid, &halDescriptor);
-    EffectDescriptor descriptor;
-    effectDescriptorFromHal(halDescriptor, &descriptor);
-    Result retval(Result::OK);
-    if (status != OK) {
-        ALOGE("Error querying effect descriptor for %s: %s", uuidToString(halUuid).c_str(),
-              strerror(-status));
-        if (status == -ENOENT) {
-            retval = Result::INVALID_ARGUMENTS;
-        } else {
-            retval = Result::NOT_INITIALIZED;
-        }
-    }
-    _hidl_cb(retval, descriptor);
-    return Void();
-}
-
-Return<void> EffectsFactory::createEffect(const Uuid& uid, int32_t session, int32_t ioHandle,
-                                          createEffect_cb _hidl_cb) {
-    effect_uuid_t halUuid;
-    HidlUtils::uuidToHal(uid, &halUuid);
-    effect_handle_t handle;
-    Result retval(Result::OK);
-    status_t status = EffectCreate(&halUuid, session, ioHandle, &handle);
-    sp<IEffect> effect;
-    uint64_t effectId = EffectMap::INVALID_ID;
-    if (status == OK) {
-        effect_descriptor_t halDescriptor;
-        memset(&halDescriptor, 0, sizeof(effect_descriptor_t));
-        status = (*handle)->get_descriptor(handle, &halDescriptor);
-        if (status == OK) {
-            effect = dispatchEffectInstanceCreation(halDescriptor, handle);
-            effectId = EffectMap::getInstance().add(handle);
-        } else {
-            ALOGE("Error querying effect descriptor for %s: %s", uuidToString(halUuid).c_str(),
-                  strerror(-status));
-            EffectRelease(handle);
-        }
-    }
-    if (status != OK) {
-        ALOGE("Error creating effect %s: %s", uuidToString(halUuid).c_str(), strerror(-status));
-        if (status == -ENOENT) {
-            retval = Result::INVALID_ARGUMENTS;
-        } else {
-            retval = Result::NOT_INITIALIZED;
-        }
-    }
-    _hidl_cb(retval, effect, effectId);
-    return Void();
-}
-
-Return<void> EffectsFactory::debugDump(const hidl_handle& fd) {
-    return debug(fd, {} /* options */);
-}
-
-Return<void> EffectsFactory::debug(const hidl_handle& fd,
-                                   const hidl_vec<hidl_string>& /* options */) {
-    if (fd.getNativeHandle() != nullptr && fd->numFds == 1) {
-        EffectDumpEffects(fd->data[0]);
-    }
-    return Void();
-}
-
-IEffectsFactory* HIDL_FETCH_IEffectsFactory(const char* /* name */) {
-    return new EffectsFactory();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/EnvironmentalReverbEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/EnvironmentalReverbEffect.h
deleted file mode 100644
index d2f8cc3..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/EnvironmentalReverbEffect.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <system/audio_effects/effect_environmentalreverb.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEnvironmentalReverbEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct EnvironmentalReverbEffect : public IEnvironmentalReverbEffect {
-    explicit EnvironmentalReverbEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from
-    // ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEnvironmentalReverbEffect follow.
-    Return<Result> setBypass(bool bypass) override;
-    Return<void> getBypass(getBypass_cb _hidl_cb) override;
-    Return<Result> setRoomLevel(int16_t roomLevel) override;
-    Return<void> getRoomLevel(getRoomLevel_cb _hidl_cb) override;
-    Return<Result> setRoomHfLevel(int16_t roomHfLevel) override;
-    Return<void> getRoomHfLevel(getRoomHfLevel_cb _hidl_cb) override;
-    Return<Result> setDecayTime(uint32_t decayTime) override;
-    Return<void> getDecayTime(getDecayTime_cb _hidl_cb) override;
-    Return<Result> setDecayHfRatio(int16_t decayHfRatio) override;
-    Return<void> getDecayHfRatio(getDecayHfRatio_cb _hidl_cb) override;
-    Return<Result> setReflectionsLevel(int16_t reflectionsLevel) override;
-    Return<void> getReflectionsLevel(getReflectionsLevel_cb _hidl_cb) override;
-    Return<Result> setReflectionsDelay(uint32_t reflectionsDelay) override;
-    Return<void> getReflectionsDelay(getReflectionsDelay_cb _hidl_cb) override;
-    Return<Result> setReverbLevel(int16_t reverbLevel) override;
-    Return<void> getReverbLevel(getReverbLevel_cb _hidl_cb) override;
-    Return<Result> setReverbDelay(uint32_t reverbDelay) override;
-    Return<void> getReverbDelay(getReverbDelay_cb _hidl_cb) override;
-    Return<Result> setDiffusion(int16_t diffusion) override;
-    Return<void> getDiffusion(getDiffusion_cb _hidl_cb) override;
-    Return<Result> setDensity(int16_t density) override;
-    Return<void> getDensity(getDensity_cb _hidl_cb) override;
-    Return<Result> setAllProperties(
-        const IEnvironmentalReverbEffect::AllProperties& properties) override;
-    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~EnvironmentalReverbEffect();
-
-    void propertiesFromHal(const t_reverb_settings& halProperties,
-                           IEnvironmentalReverbEffect::AllProperties* properties);
-    void propertiesToHal(const IEnvironmentalReverbEffect::AllProperties& properties,
-                         t_reverb_settings* halProperties);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/EnvironmentalReverbEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/EnvironmentalReverbEffect.impl.h
deleted file mode 100644
index 39a4092..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/EnvironmentalReverbEffect.impl.h
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-EnvironmentalReverbEffect::EnvironmentalReverbEffect(effect_handle_t handle)
-    : mEffect(new Effect(handle)) {}
-
-EnvironmentalReverbEffect::~EnvironmentalReverbEffect() {}
-
-void EnvironmentalReverbEffect::propertiesFromHal(
-    const t_reverb_settings& halProperties, IEnvironmentalReverbEffect::AllProperties* properties) {
-    properties->roomLevel = halProperties.roomLevel;
-    properties->roomHfLevel = halProperties.roomHFLevel;
-    properties->decayTime = halProperties.decayTime;
-    properties->decayHfRatio = halProperties.decayHFRatio;
-    properties->reflectionsLevel = halProperties.reflectionsLevel;
-    properties->reflectionsDelay = halProperties.reflectionsDelay;
-    properties->reverbLevel = halProperties.reverbLevel;
-    properties->reverbDelay = halProperties.reverbDelay;
-    properties->diffusion = halProperties.diffusion;
-    properties->density = halProperties.density;
-}
-
-void EnvironmentalReverbEffect::propertiesToHal(
-    const IEnvironmentalReverbEffect::AllProperties& properties, t_reverb_settings* halProperties) {
-    halProperties->roomLevel = properties.roomLevel;
-    halProperties->roomHFLevel = properties.roomHfLevel;
-    halProperties->decayTime = properties.decayTime;
-    halProperties->decayHFRatio = properties.decayHfRatio;
-    halProperties->reflectionsLevel = properties.reflectionsLevel;
-    halProperties->reflectionsDelay = properties.reflectionsDelay;
-    halProperties->reverbLevel = properties.reverbLevel;
-    halProperties->reverbDelay = properties.reverbDelay;
-    halProperties->diffusion = properties.diffusion;
-    halProperties->density = properties.density;
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> EnvironmentalReverbEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> EnvironmentalReverbEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> EnvironmentalReverbEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> EnvironmentalReverbEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> EnvironmentalReverbEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> EnvironmentalReverbEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> EnvironmentalReverbEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                        setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::volumeChangeNotification(
-    const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> EnvironmentalReverbEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> EnvironmentalReverbEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> EnvironmentalReverbEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> EnvironmentalReverbEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> EnvironmentalReverbEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> EnvironmentalReverbEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> EnvironmentalReverbEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setAuxChannelsConfig(
-    const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> EnvironmentalReverbEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> EnvironmentalReverbEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> EnvironmentalReverbEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> EnvironmentalReverbEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                            const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> EnvironmentalReverbEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                                uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                                       const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> EnvironmentalReverbEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                                     uint32_t valueMaxSize,
-                                                     getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> EnvironmentalReverbEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> EnvironmentalReverbEffect::getCurrentConfigForFeature(
-    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setCurrentConfigForFeature(
-    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> EnvironmentalReverbEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEnvironmentalReverbEffect
-// follow.
-Return<Result> EnvironmentalReverbEffect::setBypass(bool bypass) {
-    return mEffect->setParam(REVERB_PARAM_BYPASS, bypass);
-}
-
-Return<void> EnvironmentalReverbEffect::getBypass(getBypass_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_BYPASS, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setRoomLevel(int16_t roomLevel) {
-    return mEffect->setParam(REVERB_PARAM_ROOM_LEVEL, roomLevel);
-}
-
-Return<void> EnvironmentalReverbEffect::getRoomLevel(getRoomLevel_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_ROOM_LEVEL, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setRoomHfLevel(int16_t roomHfLevel) {
-    return mEffect->setParam(REVERB_PARAM_ROOM_HF_LEVEL, roomHfLevel);
-}
-
-Return<void> EnvironmentalReverbEffect::getRoomHfLevel(getRoomHfLevel_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_ROOM_HF_LEVEL, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setDecayTime(uint32_t decayTime) {
-    return mEffect->setParam(REVERB_PARAM_DECAY_TIME, decayTime);
-}
-
-Return<void> EnvironmentalReverbEffect::getDecayTime(getDecayTime_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_DECAY_TIME, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setDecayHfRatio(int16_t decayHfRatio) {
-    return mEffect->setParam(REVERB_PARAM_DECAY_HF_RATIO, decayHfRatio);
-}
-
-Return<void> EnvironmentalReverbEffect::getDecayHfRatio(getDecayHfRatio_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_DECAY_HF_RATIO, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setReflectionsLevel(int16_t reflectionsLevel) {
-    return mEffect->setParam(REVERB_PARAM_REFLECTIONS_LEVEL, reflectionsLevel);
-}
-
-Return<void> EnvironmentalReverbEffect::getReflectionsLevel(getReflectionsLevel_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_REFLECTIONS_LEVEL, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setReflectionsDelay(uint32_t reflectionsDelay) {
-    return mEffect->setParam(REVERB_PARAM_REFLECTIONS_DELAY, reflectionsDelay);
-}
-
-Return<void> EnvironmentalReverbEffect::getReflectionsDelay(getReflectionsDelay_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_REFLECTIONS_DELAY, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setReverbLevel(int16_t reverbLevel) {
-    return mEffect->setParam(REVERB_PARAM_REVERB_LEVEL, reverbLevel);
-}
-
-Return<void> EnvironmentalReverbEffect::getReverbLevel(getReverbLevel_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_REVERB_LEVEL, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setReverbDelay(uint32_t reverbDelay) {
-    return mEffect->setParam(REVERB_PARAM_REVERB_DELAY, reverbDelay);
-}
-
-Return<void> EnvironmentalReverbEffect::getReverbDelay(getReverbDelay_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_REVERB_DELAY, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setDiffusion(int16_t diffusion) {
-    return mEffect->setParam(REVERB_PARAM_DIFFUSION, diffusion);
-}
-
-Return<void> EnvironmentalReverbEffect::getDiffusion(getDiffusion_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_DIFFUSION, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setDensity(int16_t density) {
-    return mEffect->setParam(REVERB_PARAM_DENSITY, density);
-}
-
-Return<void> EnvironmentalReverbEffect::getDensity(getDensity_cb _hidl_cb) {
-    return mEffect->getIntegerParam(REVERB_PARAM_DENSITY, _hidl_cb);
-}
-
-Return<Result> EnvironmentalReverbEffect::setAllProperties(
-    const IEnvironmentalReverbEffect::AllProperties& properties) {
-    t_reverb_settings halProperties;
-    propertiesToHal(properties, &halProperties);
-    return mEffect->setParam(REVERB_PARAM_PROPERTIES, halProperties);
-}
-
-Return<void> EnvironmentalReverbEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
-    t_reverb_settings halProperties;
-    Result retval = mEffect->getParam(REVERB_PARAM_PROPERTIES, halProperties);
-    AllProperties properties;
-    propertiesFromHal(halProperties, &properties);
-    _hidl_cb(retval, properties);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/EqualizerEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/EqualizerEffect.h
deleted file mode 100644
index de52052..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/EqualizerEffect.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <vector>
-
-#include <system/audio_effects/effect_equalizer.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEqualizerEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct EqualizerEffect : public IEqualizerEffect {
-    explicit EqualizerEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEqualizerEffect follow.
-    Return<void> getNumBands(getNumBands_cb _hidl_cb) override;
-    Return<void> getLevelRange(getLevelRange_cb _hidl_cb) override;
-    Return<Result> setBandLevel(uint16_t band, int16_t level) override;
-    Return<void> getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) override;
-    Return<void> getBandCenterFrequency(uint16_t band, getBandCenterFrequency_cb _hidl_cb) override;
-    Return<void> getBandFrequencyRange(uint16_t band, getBandFrequencyRange_cb _hidl_cb) override;
-    Return<void> getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) override;
-    Return<void> getPresetNames(getPresetNames_cb _hidl_cb) override;
-    Return<Result> setCurrentPreset(uint16_t preset) override;
-    Return<void> getCurrentPreset(getCurrentPreset_cb _hidl_cb) override;
-    Return<Result> setAllProperties(const IEqualizerEffect::AllProperties& properties) override;
-    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~EqualizerEffect();
-
-    void propertiesFromHal(const t_equalizer_settings& halProperties,
-                           IEqualizerEffect::AllProperties* properties);
-    std::vector<uint8_t> propertiesToHal(const IEqualizerEffect::AllProperties& properties,
-                                         t_equalizer_settings** halProperties);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/EqualizerEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/EqualizerEffect.impl.h
deleted file mode 100644
index db6bed8..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/EqualizerEffect.impl.h
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <memory.h>
-
-#include <android/log.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-EqualizerEffect::EqualizerEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
-
-EqualizerEffect::~EqualizerEffect() {}
-
-void EqualizerEffect::propertiesFromHal(const t_equalizer_settings& halProperties,
-                                        IEqualizerEffect::AllProperties* properties) {
-    properties->curPreset = halProperties.curPreset;
-    // t_equalizer_settings incorrectly defines bandLevels as uint16_t,
-    // whereas the actual type of values used by effects is int16_t.
-    const int16_t* signedBandLevels =
-        reinterpret_cast<const int16_t*>(&halProperties.bandLevels[0]);
-    properties->bandLevels.setToExternal(const_cast<int16_t*>(signedBandLevels),
-                                         halProperties.numBands);
-}
-
-std::vector<uint8_t> EqualizerEffect::propertiesToHal(
-    const IEqualizerEffect::AllProperties& properties, t_equalizer_settings** halProperties) {
-    size_t bandsSize = properties.bandLevels.size() * sizeof(uint16_t);
-    std::vector<uint8_t> halBuffer(sizeof(t_equalizer_settings) + bandsSize, 0);
-    *halProperties = reinterpret_cast<t_equalizer_settings*>(&halBuffer[0]);
-    (*halProperties)->curPreset = properties.curPreset;
-    (*halProperties)->numBands = properties.bandLevels.size();
-    memcpy((*halProperties)->bandLevels, &properties.bandLevels[0], bandsSize);
-    return halBuffer;
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> EqualizerEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> EqualizerEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> EqualizerEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> EqualizerEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> EqualizerEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> EqualizerEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> EqualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                              setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> EqualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> EqualizerEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> EqualizerEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> EqualizerEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> EqualizerEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> EqualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> EqualizerEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> EqualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> EqualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> EqualizerEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> EqualizerEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> EqualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> EqualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> EqualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                  const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> EqualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                      uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> EqualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                             const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> EqualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                           uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> EqualizerEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> EqualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                                         getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> EqualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
-                                                           const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> EqualizerEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEqualizerEffect follow.
-Return<void> EqualizerEffect::getNumBands(getNumBands_cb _hidl_cb) {
-    return mEffect->getIntegerParam(EQ_PARAM_NUM_BANDS, _hidl_cb);
-}
-
-Return<void> EqualizerEffect::getLevelRange(getLevelRange_cb _hidl_cb) {
-    int16_t halLevels[2] = {0, 0};
-    Result retval = mEffect->getParam(EQ_PARAM_LEVEL_RANGE, halLevels);
-    _hidl_cb(retval, halLevels[0], halLevels[1]);
-    return Void();
-}
-
-Return<Result> EqualizerEffect::setBandLevel(uint16_t band, int16_t level) {
-    return mEffect->setParam(EQ_PARAM_BAND_LEVEL, band, level);
-}
-
-Return<void> EqualizerEffect::getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb) {
-    int16_t halLevel = 0;
-    Result retval = mEffect->getParam(EQ_PARAM_BAND_LEVEL, band, halLevel);
-    _hidl_cb(retval, halLevel);
-    return Void();
-}
-
-Return<void> EqualizerEffect::getBandCenterFrequency(uint16_t band,
-                                                     getBandCenterFrequency_cb _hidl_cb) {
-    uint32_t halFreq = 0;
-    Result retval = mEffect->getParam(EQ_PARAM_CENTER_FREQ, band, halFreq);
-    _hidl_cb(retval, halFreq);
-    return Void();
-}
-
-Return<void> EqualizerEffect::getBandFrequencyRange(uint16_t band,
-                                                    getBandFrequencyRange_cb _hidl_cb) {
-    uint32_t halFreqs[2] = {0, 0};
-    Result retval = mEffect->getParam(EQ_PARAM_BAND_FREQ_RANGE, band, halFreqs);
-    _hidl_cb(retval, halFreqs[0], halFreqs[1]);
-    return Void();
-}
-
-Return<void> EqualizerEffect::getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb) {
-    uint16_t halBand = 0;
-    Result retval = mEffect->getParam(EQ_PARAM_GET_BAND, freq, halBand);
-    _hidl_cb(retval, halBand);
-    return Void();
-}
-
-Return<void> EqualizerEffect::getPresetNames(getPresetNames_cb _hidl_cb) {
-    uint16_t halPresetCount = 0;
-    Result retval = mEffect->getParam(EQ_PARAM_GET_NUM_OF_PRESETS, halPresetCount);
-    hidl_vec<hidl_string> presetNames;
-    if (retval == Result::OK) {
-        presetNames.resize(halPresetCount);
-        for (uint16_t i = 0; i < halPresetCount; ++i) {
-            char halPresetName[EFFECT_STRING_LEN_MAX];
-            retval = mEffect->getParam(EQ_PARAM_GET_PRESET_NAME, i, halPresetName);
-            if (retval == Result::OK) {
-                presetNames[i] = halPresetName;
-            } else {
-                presetNames.resize(i);
-            }
-        }
-    }
-    _hidl_cb(retval, presetNames);
-    return Void();
-}
-
-Return<Result> EqualizerEffect::setCurrentPreset(uint16_t preset) {
-    return mEffect->setParam(EQ_PARAM_CUR_PRESET, preset);
-}
-
-Return<void> EqualizerEffect::getCurrentPreset(getCurrentPreset_cb _hidl_cb) {
-    return mEffect->getIntegerParam(EQ_PARAM_CUR_PRESET, _hidl_cb);
-}
-
-Return<Result> EqualizerEffect::setAllProperties(
-    const IEqualizerEffect::AllProperties& properties) {
-    t_equalizer_settings* halPropertiesPtr = nullptr;
-    std::vector<uint8_t> halBuffer = propertiesToHal(properties, &halPropertiesPtr);
-    uint32_t paramId = EQ_PARAM_PROPERTIES;
-    return mEffect->setParameterImpl(sizeof(paramId), &paramId, halBuffer.size(), halPropertiesPtr);
-}
-
-Return<void> EqualizerEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
-    uint16_t numBands = 0;
-    Result retval = mEffect->getParam(EQ_PARAM_NUM_BANDS, numBands);
-    AllProperties properties;
-    if (retval != Result::OK) {
-        _hidl_cb(retval, properties);
-        return Void();
-    }
-    size_t valueSize = sizeof(t_equalizer_settings) + sizeof(int16_t) * numBands;
-    uint32_t paramId = EQ_PARAM_PROPERTIES;
-    retval = mEffect->getParameterImpl(
-        sizeof(paramId), &paramId, valueSize, [&](uint32_t, const void* valueData) {
-            const t_equalizer_settings* halProperties =
-                reinterpret_cast<const t_equalizer_settings*>(valueData);
-            propertiesFromHal(*halProperties, &properties);
-        });
-    _hidl_cb(retval, properties);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/LoudnessEnhancerEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/LoudnessEnhancerEffect.h
deleted file mode 100644
index b59b077..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/LoudnessEnhancerEffect.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::ILoudnessEnhancerEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct LoudnessEnhancerEffect : public ILoudnessEnhancerEffect {
-    explicit LoudnessEnhancerEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::ILoudnessEnhancerEffect
-    // follow.
-    Return<Result> setTargetGain(int32_t targetGainMb) override;
-    Return<void> getTargetGain(getTargetGain_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~LoudnessEnhancerEffect();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/LoudnessEnhancerEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/LoudnessEnhancerEffect.impl.h
deleted file mode 100644
index 88210e9..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/LoudnessEnhancerEffect.impl.h
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <system/audio_effects/effect_loudnessenhancer.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_aec.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-LoudnessEnhancerEffect::LoudnessEnhancerEffect(effect_handle_t handle)
-    : mEffect(new Effect(handle)) {}
-
-LoudnessEnhancerEffect::~LoudnessEnhancerEffect() {}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> LoudnessEnhancerEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> LoudnessEnhancerEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> LoudnessEnhancerEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> LoudnessEnhancerEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> LoudnessEnhancerEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> LoudnessEnhancerEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> LoudnessEnhancerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                     setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> LoudnessEnhancerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> LoudnessEnhancerEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> LoudnessEnhancerEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> LoudnessEnhancerEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> LoudnessEnhancerEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> LoudnessEnhancerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> LoudnessEnhancerEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> LoudnessEnhancerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> LoudnessEnhancerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> LoudnessEnhancerEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> LoudnessEnhancerEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> LoudnessEnhancerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> LoudnessEnhancerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> LoudnessEnhancerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                         const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> LoudnessEnhancerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                             uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> LoudnessEnhancerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                                    const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> LoudnessEnhancerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                                  uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> LoudnessEnhancerEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> LoudnessEnhancerEffect::getCurrentConfigForFeature(
-    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> LoudnessEnhancerEffect::setCurrentConfigForFeature(
-    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> LoudnessEnhancerEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::ILoudnessEnhancerEffect
-// follow.
-Return<Result> LoudnessEnhancerEffect::setTargetGain(int32_t targetGainMb) {
-    return mEffect->setParam(LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB, targetGainMb);
-}
-
-Return<void> LoudnessEnhancerEffect::getTargetGain(getTargetGain_cb _hidl_cb) {
-    // AOSP Loudness Enhancer expects the size of the request to not include the
-    // size of the parameter.
-    uint32_t paramId = LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB;
-    uint32_t targetGainMb = 0;
-    Result retval = mEffect->getParameterImpl(
-        sizeof(paramId), &paramId, 0, sizeof(targetGainMb), [&](uint32_t, const void* valueData) {
-            memcpy(&targetGainMb, valueData, sizeof(targetGainMb));
-        });
-    _hidl_cb(retval, targetGainMb);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/NoiseSuppressionEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/NoiseSuppressionEffect.h
deleted file mode 100644
index af1635b..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/NoiseSuppressionEffect.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <system/audio_effects/effect_ns.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::INoiseSuppressionEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct NoiseSuppressionEffect : public INoiseSuppressionEffect {
-    explicit NoiseSuppressionEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::INoiseSuppressionEffect
-    // follow.
-    Return<Result> setSuppressionLevel(INoiseSuppressionEffect::Level level) override;
-    Return<void> getSuppressionLevel(getSuppressionLevel_cb _hidl_cb) override;
-    Return<Result> setSuppressionType(INoiseSuppressionEffect::Type type) override;
-    Return<void> getSuppressionType(getSuppressionType_cb _hidl_cb) override;
-    Return<Result> setAllProperties(
-        const INoiseSuppressionEffect::AllProperties& properties) override;
-    Return<void> getAllProperties(getAllProperties_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~NoiseSuppressionEffect();
-
-    void propertiesFromHal(const t_ns_settings& halProperties,
-                           INoiseSuppressionEffect::AllProperties* properties);
-    void propertiesToHal(const INoiseSuppressionEffect::AllProperties& properties,
-                         t_ns_settings* halProperties);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/NoiseSuppressionEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/NoiseSuppressionEffect.impl.h
deleted file mode 100644
index f32399c..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/NoiseSuppressionEffect.impl.h
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-NoiseSuppressionEffect::NoiseSuppressionEffect(effect_handle_t handle)
-    : mEffect(new Effect(handle)) {}
-
-NoiseSuppressionEffect::~NoiseSuppressionEffect() {}
-
-void NoiseSuppressionEffect::propertiesFromHal(const t_ns_settings& halProperties,
-                                               INoiseSuppressionEffect::AllProperties* properties) {
-    properties->level = Level(halProperties.level);
-    properties->type = Type(halProperties.type);
-}
-
-void NoiseSuppressionEffect::propertiesToHal(
-    const INoiseSuppressionEffect::AllProperties& properties, t_ns_settings* halProperties) {
-    halProperties->level = static_cast<uint32_t>(properties.level);
-    halProperties->type = static_cast<uint32_t>(properties.type);
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> NoiseSuppressionEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> NoiseSuppressionEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> NoiseSuppressionEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> NoiseSuppressionEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> NoiseSuppressionEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> NoiseSuppressionEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> NoiseSuppressionEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                     setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> NoiseSuppressionEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> NoiseSuppressionEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> NoiseSuppressionEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> NoiseSuppressionEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> NoiseSuppressionEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> NoiseSuppressionEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> NoiseSuppressionEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> NoiseSuppressionEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> NoiseSuppressionEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> NoiseSuppressionEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> NoiseSuppressionEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> NoiseSuppressionEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> NoiseSuppressionEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> NoiseSuppressionEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                         const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> NoiseSuppressionEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                             uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> NoiseSuppressionEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                                    const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> NoiseSuppressionEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                                  uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> NoiseSuppressionEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> NoiseSuppressionEffect::getCurrentConfigForFeature(
-    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> NoiseSuppressionEffect::setCurrentConfigForFeature(
-    uint32_t featureId, const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> NoiseSuppressionEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::INoiseSuppressionEffect
-// follow.
-Return<Result> NoiseSuppressionEffect::setSuppressionLevel(INoiseSuppressionEffect::Level level) {
-    return mEffect->setParam(NS_PARAM_LEVEL, static_cast<int32_t>(level));
-}
-
-Return<void> NoiseSuppressionEffect::getSuppressionLevel(getSuppressionLevel_cb _hidl_cb) {
-    int32_t halLevel = 0;
-    Result retval = mEffect->getParam(NS_PARAM_LEVEL, halLevel);
-    _hidl_cb(retval, Level(halLevel));
-    return Void();
-}
-
-Return<Result> NoiseSuppressionEffect::setSuppressionType(INoiseSuppressionEffect::Type type) {
-    return mEffect->setParam(NS_PARAM_TYPE, static_cast<int32_t>(type));
-}
-
-Return<void> NoiseSuppressionEffect::getSuppressionType(getSuppressionType_cb _hidl_cb) {
-    int32_t halType = 0;
-    Result retval = mEffect->getParam(NS_PARAM_TYPE, halType);
-    _hidl_cb(retval, Type(halType));
-    return Void();
-}
-
-Return<Result> NoiseSuppressionEffect::setAllProperties(
-    const INoiseSuppressionEffect::AllProperties& properties) {
-    t_ns_settings halProperties;
-    propertiesToHal(properties, &halProperties);
-    return mEffect->setParam(NS_PARAM_PROPERTIES, halProperties);
-}
-
-Return<void> NoiseSuppressionEffect::getAllProperties(getAllProperties_cb _hidl_cb) {
-    t_ns_settings halProperties;
-    Result retval = mEffect->getParam(NS_PARAM_PROPERTIES, halProperties);
-    AllProperties properties;
-    propertiesFromHal(halProperties, &properties);
-    _hidl_cb(retval, properties);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/PresetReverbEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/PresetReverbEffect.h
deleted file mode 100644
index 1a91ab4..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/PresetReverbEffect.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IPresetReverbEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct PresetReverbEffect : public IPresetReverbEffect {
-    explicit PresetReverbEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IPresetReverbEffect
-    // follow.
-    Return<Result> setPreset(IPresetReverbEffect::Preset preset) override;
-    Return<void> getPreset(getPreset_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~PresetReverbEffect();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/PresetReverbEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/PresetReverbEffect.impl.h
deleted file mode 100644
index eab68fb..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/PresetReverbEffect.impl.h
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_presetreverb.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-PresetReverbEffect::PresetReverbEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
-
-PresetReverbEffect::~PresetReverbEffect() {}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> PresetReverbEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> PresetReverbEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> PresetReverbEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> PresetReverbEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> PresetReverbEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> PresetReverbEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> PresetReverbEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                 setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> PresetReverbEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> PresetReverbEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> PresetReverbEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> PresetReverbEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> PresetReverbEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> PresetReverbEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> PresetReverbEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> PresetReverbEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> PresetReverbEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> PresetReverbEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> PresetReverbEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> PresetReverbEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> PresetReverbEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> PresetReverbEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                     const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> PresetReverbEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                         uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> PresetReverbEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                                const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> PresetReverbEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                              uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> PresetReverbEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> PresetReverbEffect::getCurrentConfigForFeature(
-    uint32_t featureId, uint32_t configSize, getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> PresetReverbEffect::setCurrentConfigForFeature(uint32_t featureId,
-                                                              const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> PresetReverbEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IPresetReverbEffect follow.
-Return<Result> PresetReverbEffect::setPreset(IPresetReverbEffect::Preset preset) {
-    return mEffect->setParam(REVERB_PARAM_PRESET, static_cast<t_reverb_presets>(preset));
-}
-
-Return<void> PresetReverbEffect::getPreset(getPreset_cb _hidl_cb) {
-    t_reverb_presets halPreset = REVERB_PRESET_NONE;
-    Result retval = mEffect->getParam(REVERB_PARAM_PRESET, halPreset);
-    _hidl_cb(retval, Preset(halPreset));
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/VirtualizerEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/VirtualizerEffect.h
deleted file mode 100644
index c0d5a00..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/VirtualizerEffect.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioChannelMask;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::implementation::AudioChannelBitfield;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IVirtualizerEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct VirtualizerEffect : public IVirtualizerEffect {
-    explicit VirtualizerEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IVirtualizerEffect
-    // follow.
-    Return<bool> isStrengthSupported() override;
-    Return<Result> setStrength(uint16_t strength) override;
-    Return<void> getStrength(getStrength_cb _hidl_cb) override;
-    Return<void> getVirtualSpeakerAngles(AudioChannelBitfield mask, AudioDevice device,
-                                         getVirtualSpeakerAngles_cb _hidl_cb) override;
-    Return<Result> forceVirtualizationMode(AudioDevice device) override;
-    Return<void> getVirtualizationMode(getVirtualizationMode_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-
-    virtual ~VirtualizerEffect();
-
-    void speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
-                              hidl_vec<SpeakerAngle>& speakerAngles);
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/VirtualizerEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/VirtualizerEffect.impl.h
deleted file mode 100644
index 23b09a89..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/VirtualizerEffect.impl.h
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <memory.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_virtualizer.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-VirtualizerEffect::VirtualizerEffect(effect_handle_t handle) : mEffect(new Effect(handle)) {}
-
-VirtualizerEffect::~VirtualizerEffect() {}
-
-void VirtualizerEffect::speakerAnglesFromHal(const int32_t* halAngles, uint32_t channelCount,
-                                             hidl_vec<SpeakerAngle>& speakerAngles) {
-    speakerAngles.resize(channelCount);
-    for (uint32_t i = 0; i < channelCount; ++i) {
-        speakerAngles[i].mask = AudioChannelBitfield(*halAngles++);
-        speakerAngles[i].azimuth = *halAngles++;
-        speakerAngles[i].elevation = *halAngles++;
-    }
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> VirtualizerEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> VirtualizerEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> VirtualizerEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> VirtualizerEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> VirtualizerEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> VirtualizerEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> VirtualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                                setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> VirtualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> VirtualizerEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> VirtualizerEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> VirtualizerEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> VirtualizerEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> VirtualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> VirtualizerEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> VirtualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> VirtualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> VirtualizerEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> VirtualizerEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> VirtualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> VirtualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> VirtualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                    const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> VirtualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                        uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> VirtualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                               const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> VirtualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                             uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> VirtualizerEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> VirtualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                                           getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> VirtualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
-                                                             const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> VirtualizerEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IVirtualizerEffect follow.
-Return<bool> VirtualizerEffect::isStrengthSupported() {
-    bool halSupported = false;
-    mEffect->getParam(VIRTUALIZER_PARAM_STRENGTH_SUPPORTED, halSupported);
-    return halSupported;
-}
-
-Return<Result> VirtualizerEffect::setStrength(uint16_t strength) {
-    return mEffect->setParam(VIRTUALIZER_PARAM_STRENGTH, strength);
-}
-
-Return<void> VirtualizerEffect::getStrength(getStrength_cb _hidl_cb) {
-    return mEffect->getIntegerParam(VIRTUALIZER_PARAM_STRENGTH, _hidl_cb);
-}
-
-Return<void> VirtualizerEffect::getVirtualSpeakerAngles(AudioChannelBitfield mask,
-                                                        AudioDevice device,
-                                                        getVirtualSpeakerAngles_cb _hidl_cb) {
-    uint32_t channelCount =
-        audio_channel_count_from_out_mask(static_cast<audio_channel_mask_t>(mask));
-    size_t halSpeakerAnglesSize = sizeof(int32_t) * 3 * channelCount;
-    uint32_t halParam[3] = {VIRTUALIZER_PARAM_VIRTUAL_SPEAKER_ANGLES,
-                            static_cast<audio_channel_mask_t>(mask),
-                            static_cast<audio_devices_t>(device)};
-    hidl_vec<SpeakerAngle> speakerAngles;
-    Result retval = mEffect->getParameterImpl(
-        sizeof(halParam), halParam, halSpeakerAnglesSize,
-        [&](uint32_t valueSize, const void* valueData) {
-            if (valueSize > halSpeakerAnglesSize) {
-                valueSize = halSpeakerAnglesSize;
-            } else if (valueSize < halSpeakerAnglesSize) {
-                channelCount = valueSize / (sizeof(int32_t) * 3);
-            }
-            speakerAnglesFromHal(reinterpret_cast<const int32_t*>(valueData), channelCount,
-                                 speakerAngles);
-        });
-    _hidl_cb(retval, speakerAngles);
-    return Void();
-}
-
-Return<Result> VirtualizerEffect::forceVirtualizationMode(AudioDevice device) {
-    return mEffect->setParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE,
-                             static_cast<audio_devices_t>(device));
-}
-
-Return<void> VirtualizerEffect::getVirtualizationMode(getVirtualizationMode_cb _hidl_cb) {
-    uint32_t halMode = 0;
-    Result retval = mEffect->getParam(VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE, halMode);
-    _hidl_cb(retval, AudioDevice(halMode));
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/VisualizerEffect.h b/audio/effect/all-versions/default/include/effect/all-versions/default/VisualizerEffect.h
deleted file mode 100644
index 114d3b7..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/VisualizerEffect.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <hidl/Status.h>
-
-#include <hidl/MQDescriptor.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioDevice;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioMode;
-using ::android::hardware::audio::common::AUDIO_HAL_VERSION::AudioSource;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::AudioBuffer;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectAuxChannelsConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectConfig;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectDescriptor;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::EffectOffloadParameter;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffectBufferProviderCallback;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IVisualizerEffect;
-using ::android::hardware::audio::effect::AUDIO_HAL_VERSION::Result;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-
-struct VisualizerEffect : public IVisualizerEffect {
-    explicit VisualizerEffect(effect_handle_t handle);
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-    Return<Result> init() override;
-    Return<Result> setConfig(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> reset() override;
-    Return<Result> enable() override;
-    Return<Result> disable() override;
-    Return<Result> setDevice(AudioDeviceBitfield device) override;
-    Return<void> setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                 setAndGetVolume_cb _hidl_cb) override;
-    Return<Result> volumeChangeNotification(const hidl_vec<uint32_t>& volumes) override;
-    Return<Result> setAudioMode(AudioMode mode) override;
-    Return<Result> setConfigReverse(
-        const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-        const sp<IEffectBufferProviderCallback>& outputBufferProvider) override;
-    Return<Result> setInputDevice(AudioDeviceBitfield device) override;
-    Return<void> getConfig(getConfig_cb _hidl_cb) override;
-    Return<void> getConfigReverse(getConfigReverse_cb _hidl_cb) override;
-    Return<void> getSupportedAuxChannelsConfigs(
-        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) override;
-    Return<void> getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) override;
-    Return<Result> setAuxChannelsConfig(const EffectAuxChannelsConfig& config) override;
-    Return<Result> setAudioSource(AudioSource source) override;
-    Return<Result> offload(const EffectOffloadParameter& param) override;
-    Return<void> getDescriptor(getDescriptor_cb _hidl_cb) override;
-    Return<void> prepareForProcessing(prepareForProcessing_cb _hidl_cb) override;
-    Return<Result> setProcessBuffers(const AudioBuffer& inBuffer,
-                                     const AudioBuffer& outBuffer) override;
-    Return<void> command(uint32_t commandId, const hidl_vec<uint8_t>& data, uint32_t resultMaxSize,
-                         command_cb _hidl_cb) override;
-    Return<Result> setParameter(const hidl_vec<uint8_t>& parameter,
-                                const hidl_vec<uint8_t>& value) override;
-    Return<void> getParameter(const hidl_vec<uint8_t>& parameter, uint32_t valueMaxSize,
-                              getParameter_cb _hidl_cb) override;
-    Return<void> getSupportedConfigsForFeature(uint32_t featureId, uint32_t maxConfigs,
-                                               uint32_t configSize,
-                                               getSupportedConfigsForFeature_cb _hidl_cb) override;
-    Return<void> getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                            getCurrentConfigForFeature_cb _hidl_cb) override;
-    Return<Result> setCurrentConfigForFeature(uint32_t featureId,
-                                              const hidl_vec<uint8_t>& configData) override;
-    Return<Result> close() override;
-
-    // Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IVisualizerEffect follow.
-    Return<Result> setCaptureSize(uint16_t captureSize) override;
-    Return<void> getCaptureSize(getCaptureSize_cb _hidl_cb) override;
-    Return<Result> setScalingMode(IVisualizerEffect::ScalingMode scalingMode) override;
-    Return<void> getScalingMode(getScalingMode_cb _hidl_cb) override;
-    Return<Result> setLatency(uint32_t latencyMs) override;
-    Return<void> getLatency(getLatency_cb _hidl_cb) override;
-    Return<Result> setMeasurementMode(IVisualizerEffect::MeasurementMode measurementMode) override;
-    Return<void> getMeasurementMode(getMeasurementMode_cb _hidl_cb) override;
-    Return<void> capture(capture_cb _hidl_cb) override;
-    Return<void> measure(measure_cb _hidl_cb) override;
-
-   private:
-    sp<Effect> mEffect;
-    uint16_t mCaptureSize;
-    MeasurementMode mMeasurementMode;
-
-    virtual ~VisualizerEffect();
-};
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/include/effect/all-versions/default/VisualizerEffect.impl.h b/audio/effect/all-versions/default/include/effect/all-versions/default/VisualizerEffect.impl.h
deleted file mode 100644
index 9f2195b..0000000
--- a/audio/effect/all-versions/default/include/effect/all-versions/default/VisualizerEffect.impl.h
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <common/all-versions/IncludeGuard.h>
-
-#include <android/log.h>
-#include <system/audio_effects/effect_visualizer.h>
-
-#include "VersionUtils.h"
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace AUDIO_HAL_VERSION {
-namespace implementation {
-
-VisualizerEffect::VisualizerEffect(effect_handle_t handle)
-    : mEffect(new Effect(handle)), mCaptureSize(0), mMeasurementMode(MeasurementMode::NONE) {}
-
-VisualizerEffect::~VisualizerEffect() {}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IEffect follow.
-Return<Result> VisualizerEffect::init() {
-    return mEffect->init();
-}
-
-Return<Result> VisualizerEffect::setConfig(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> VisualizerEffect::reset() {
-    return mEffect->reset();
-}
-
-Return<Result> VisualizerEffect::enable() {
-    return mEffect->enable();
-}
-
-Return<Result> VisualizerEffect::disable() {
-    return mEffect->disable();
-}
-
-Return<Result> VisualizerEffect::setDevice(AudioDeviceBitfield device) {
-    return mEffect->setDevice(device);
-}
-
-Return<void> VisualizerEffect::setAndGetVolume(const hidl_vec<uint32_t>& volumes,
-                                               setAndGetVolume_cb _hidl_cb) {
-    return mEffect->setAndGetVolume(volumes, _hidl_cb);
-}
-
-Return<Result> VisualizerEffect::volumeChangeNotification(const hidl_vec<uint32_t>& volumes) {
-    return mEffect->volumeChangeNotification(volumes);
-}
-
-Return<Result> VisualizerEffect::setAudioMode(AudioMode mode) {
-    return mEffect->setAudioMode(mode);
-}
-
-Return<Result> VisualizerEffect::setConfigReverse(
-    const EffectConfig& config, const sp<IEffectBufferProviderCallback>& inputBufferProvider,
-    const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
-    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
-}
-
-Return<Result> VisualizerEffect::setInputDevice(AudioDeviceBitfield device) {
-    return mEffect->setInputDevice(device);
-}
-
-Return<void> VisualizerEffect::getConfig(getConfig_cb _hidl_cb) {
-    return mEffect->getConfig(_hidl_cb);
-}
-
-Return<void> VisualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
-    return mEffect->getConfigReverse(_hidl_cb);
-}
-
-Return<void> VisualizerEffect::getSupportedAuxChannelsConfigs(
-    uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
-    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
-}
-
-Return<void> VisualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    return mEffect->getAuxChannelsConfig(_hidl_cb);
-}
-
-Return<Result> VisualizerEffect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    return mEffect->setAuxChannelsConfig(config);
-}
-
-Return<Result> VisualizerEffect::setAudioSource(AudioSource source) {
-    return mEffect->setAudioSource(source);
-}
-
-Return<Result> VisualizerEffect::offload(const EffectOffloadParameter& param) {
-    return mEffect->offload(param);
-}
-
-Return<void> VisualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
-    return mEffect->getDescriptor(_hidl_cb);
-}
-
-Return<void> VisualizerEffect::prepareForProcessing(prepareForProcessing_cb _hidl_cb) {
-    return mEffect->prepareForProcessing(_hidl_cb);
-}
-
-Return<Result> VisualizerEffect::setProcessBuffers(const AudioBuffer& inBuffer,
-                                                   const AudioBuffer& outBuffer) {
-    return mEffect->setProcessBuffers(inBuffer, outBuffer);
-}
-
-Return<void> VisualizerEffect::command(uint32_t commandId, const hidl_vec<uint8_t>& data,
-                                       uint32_t resultMaxSize, command_cb _hidl_cb) {
-    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
-}
-
-Return<Result> VisualizerEffect::setParameter(const hidl_vec<uint8_t>& parameter,
-                                              const hidl_vec<uint8_t>& value) {
-    return mEffect->setParameter(parameter, value);
-}
-
-Return<void> VisualizerEffect::getParameter(const hidl_vec<uint8_t>& parameter,
-                                            uint32_t valueMaxSize, getParameter_cb _hidl_cb) {
-    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
-}
-
-Return<void> VisualizerEffect::getSupportedConfigsForFeature(
-    uint32_t featureId, uint32_t maxConfigs, uint32_t configSize,
-    getSupportedConfigsForFeature_cb _hidl_cb) {
-    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
-}
-
-Return<void> VisualizerEffect::getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize,
-                                                          getCurrentConfigForFeature_cb _hidl_cb) {
-    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
-}
-
-Return<Result> VisualizerEffect::setCurrentConfigForFeature(uint32_t featureId,
-                                                            const hidl_vec<uint8_t>& configData) {
-    return mEffect->setCurrentConfigForFeature(featureId, configData);
-}
-
-Return<Result> VisualizerEffect::close() {
-    return mEffect->close();
-}
-
-// Methods from ::android::hardware::audio::effect::AUDIO_HAL_VERSION::IVisualizerEffect follow.
-Return<Result> VisualizerEffect::setCaptureSize(uint16_t captureSize) {
-    Result retval = mEffect->setParam(VISUALIZER_PARAM_CAPTURE_SIZE, captureSize);
-    if (retval == Result::OK) {
-        mCaptureSize = captureSize;
-    }
-    return retval;
-}
-
-Return<void> VisualizerEffect::getCaptureSize(getCaptureSize_cb _hidl_cb) {
-    return mEffect->getIntegerParam(VISUALIZER_PARAM_CAPTURE_SIZE, _hidl_cb);
-}
-
-Return<Result> VisualizerEffect::setScalingMode(IVisualizerEffect::ScalingMode scalingMode) {
-    return mEffect->setParam(VISUALIZER_PARAM_SCALING_MODE, static_cast<int32_t>(scalingMode));
-}
-
-Return<void> VisualizerEffect::getScalingMode(getScalingMode_cb _hidl_cb) {
-    int32_t halMode;
-    Result retval = mEffect->getParam(VISUALIZER_PARAM_SCALING_MODE, halMode);
-    _hidl_cb(retval, ScalingMode(halMode));
-    return Void();
-}
-
-Return<Result> VisualizerEffect::setLatency(uint32_t latencyMs) {
-    return mEffect->setParam(VISUALIZER_PARAM_LATENCY, latencyMs);
-}
-
-Return<void> VisualizerEffect::getLatency(getLatency_cb _hidl_cb) {
-    return mEffect->getIntegerParam(VISUALIZER_PARAM_LATENCY, _hidl_cb);
-}
-
-Return<Result> VisualizerEffect::setMeasurementMode(
-    IVisualizerEffect::MeasurementMode measurementMode) {
-    Result retval =
-        mEffect->setParam(VISUALIZER_PARAM_MEASUREMENT_MODE, static_cast<int32_t>(measurementMode));
-    if (retval == Result::OK) {
-        mMeasurementMode = measurementMode;
-    }
-    return retval;
-}
-
-Return<void> VisualizerEffect::getMeasurementMode(getMeasurementMode_cb _hidl_cb) {
-    int32_t halMode;
-    Result retval = mEffect->getParam(VISUALIZER_PARAM_MEASUREMENT_MODE, halMode);
-    _hidl_cb(retval, MeasurementMode(halMode));
-    return Void();
-}
-
-Return<void> VisualizerEffect::capture(capture_cb _hidl_cb) {
-    if (mCaptureSize == 0) {
-        _hidl_cb(Result::NOT_INITIALIZED, hidl_vec<uint8_t>());
-        return Void();
-    }
-    uint32_t halCaptureSize = mCaptureSize;
-    uint8_t halCapture[mCaptureSize];
-    Result retval = mEffect->sendCommandReturningData(VISUALIZER_CMD_CAPTURE, "VISUALIZER_CAPTURE",
-                                                      &halCaptureSize, halCapture);
-    hidl_vec<uint8_t> capture;
-    if (retval == Result::OK) {
-        capture.setToExternal(&halCapture[0], halCaptureSize);
-    }
-    _hidl_cb(retval, capture);
-    return Void();
-}
-
-Return<void> VisualizerEffect::measure(measure_cb _hidl_cb) {
-    if (mMeasurementMode == MeasurementMode::NONE) {
-        _hidl_cb(Result::NOT_INITIALIZED, Measurement());
-        return Void();
-    }
-    int32_t halMeasurement[MEASUREMENT_COUNT];
-    uint32_t halMeasurementSize = sizeof(halMeasurement);
-    Result retval = mEffect->sendCommandReturningData(VISUALIZER_CMD_MEASURE, "VISUALIZER_MEASURE",
-                                                      &halMeasurementSize, halMeasurement);
-    Measurement measurement = {.mode = MeasurementMode::PEAK_RMS};
-    measurement.value.peakAndRms.peakMb = 0;
-    measurement.value.peakAndRms.rmsMb = 0;
-    if (retval == Result::OK) {
-        measurement.value.peakAndRms.peakMb = halMeasurement[MEASUREMENT_IDX_PEAK];
-        measurement.value.peakAndRms.rmsMb = halMeasurement[MEASUREMENT_IDX_RMS];
-    }
-    _hidl_cb(retval, measurement);
-    return Void();
-}
-
-}  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/vts/OWNERS b/audio/effect/all-versions/vts/OWNERS
new file mode 100644
index 0000000..0ea4666
--- /dev/null
+++ b/audio/effect/all-versions/vts/OWNERS
@@ -0,0 +1,5 @@
+elaurent@google.com
+krocard@google.com
+mnaganov@google.com
+yim@google.com
+zhuoyao@google.com
diff --git a/audio/effect/all-versions/vts/functional/Android.bp b/audio/effect/all-versions/vts/functional/Android.bp
new file mode 100644
index 0000000..cccb5c8
--- /dev/null
+++ b/audio/effect/all-versions/vts/functional/Android.bp
@@ -0,0 +1,78 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_defaults {
+    name: "VtsHalAudioEffectTargetTest_default",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalAudioEffectTargetTest.cpp",
+        "ValidateAudioEffectsConfiguration.cpp"
+    ],
+    static_libs: [
+        "android.hardware.audio.common.test.utility",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libeffectsconfig",
+        "libxml2",
+    ],
+    header_libs: [
+        "android.hardware.audio.common.util@all-versions",
+    ],
+    test_suites: ["general-tests"],
+}
+
+cc_test {
+    name: "VtsHalAudioEffectV2_0TargetTest",
+    defaults: ["VtsHalAudioEffectTargetTest_default"],
+    static_libs: [
+        "android.hardware.audio.common@2.0",
+        "android.hardware.audio.effect@2.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_test {
+    name: "VtsHalAudioEffectV4_0TargetTest",
+    defaults: ["VtsHalAudioEffectTargetTest_default"],
+    static_libs: [
+        "android.hardware.audio.common@4.0",
+        "android.hardware.audio.effect@4.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
+cc_test {
+    name: "VtsHalAudioEffectV5_0TargetTest",
+    defaults: ["VtsHalAudioEffectTargetTest_default"],
+    static_libs: [
+        "android.hardware.audio.common@5.0",
+        "android.hardware.audio.effect@5.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ]
+}
+
diff --git a/audio/effect/all-versions/vts/functional/ValidateAudioEffectsConfiguration.cpp b/audio/effect/all-versions/vts/functional/ValidateAudioEffectsConfiguration.cpp
new file mode 100644
index 0000000..f9e4aa3
--- /dev/null
+++ b/audio/effect/all-versions/vts/functional/ValidateAudioEffectsConfiguration.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include <iterator>
+
+#include <media/EffectsConfig.h>
+
+#include "utility/ValidateXml.h"
+
+// Stringify the argument.
+#define QUOTE(x) #x
+#define STRINGIFY(x) QUOTE(x)
+
+TEST(CheckConfig, audioEffectsConfigurationValidation) {
+    RecordProperty("description",
+                   "Verify that the effects configuration file is valid according to the schema");
+    using namespace android::effectsConfig;
+
+    std::vector<const char*> locations(std::begin(DEFAULT_LOCATIONS), std::end(DEFAULT_LOCATIONS));
+    const char* xsd = "/data/local/tmp/audio_effects_conf_" STRINGIFY(CPP_VERSION) ".xsd";
+#if MAJOR_VERSION == 2
+    // In V2, audio effect XML is not required. .conf is still allowed though deprecated
+    EXPECT_VALID_XML_MULTIPLE_LOCATIONS(DEFAULT_NAME, locations, xsd);
+#elif MAJOR_VERSION >= 4
+    // Starting with V4, audio effect XML is required
+    EXPECT_ONE_VALID_XML_MULTIPLE_LOCATIONS(DEFAULT_NAME, locations, xsd);
+#endif
+}
diff --git a/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp b/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp
new file mode 100644
index 0000000..c4c7f7c
--- /dev/null
+++ b/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp
@@ -0,0 +1,818 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioEffectHidlHalTest"
+#include <android-base/logging.h>
+#include <system/audio.h>
+
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEffect.h)
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEffectsFactory.h)
+#include PATH(android/hardware/audio/effect/FILE_VERSION/IEqualizerEffect.h)
+#include PATH(android/hardware/audio/effect/FILE_VERSION/ILoudnessEnhancerEffect.h)
+#include PATH(android/hardware/audio/effect/FILE_VERSION/types.h)
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+
+#include <common/all-versions/VersionUtils.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+
+using ::android::sp;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::common::utils::mkEnumBitfield;
+using ::android::hidl::allocator::V1_0::IAllocator;
+using ::android::hidl::memory::V1_0::IMemory;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
+#endif
+
+// Test environment for Audio Effects Factory HIDL HAL.
+class AudioEffectsFactoryHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static AudioEffectsFactoryHidlEnvironment* Instance() {
+        static AudioEffectsFactoryHidlEnvironment* instance =
+            new AudioEffectsFactoryHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IEffectsFactory>(); }
+};
+
+// The main test class for Audio Effects Factory HIDL HAL.
+class AudioEffectsFactoryHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    void SetUp() override {
+        effectsFactory = ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>(
+            AudioEffectsFactoryHidlEnvironment::Instance()->getServiceName<IEffectsFactory>());
+        ASSERT_NE(effectsFactory, nullptr);
+    }
+
+    void TearDown() override { effectsFactory.clear(); }
+
+   protected:
+    static void description(const std::string& description) {
+        RecordProperty("description", description);
+    }
+
+    sp<IEffectsFactory> effectsFactory;
+};
+
+TEST_F(AudioEffectsFactoryHidlTest, EnumerateEffects) {
+    description("Verify that EnumerateEffects returns at least one effect");
+    Result retval = Result::NOT_INITIALIZED;
+    size_t effectCount = 0;
+    Return<void> ret =
+        effectsFactory->getAllDescriptors([&](Result r, const hidl_vec<EffectDescriptor>& result) {
+            retval = r;
+            effectCount = result.size();
+        });
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    EXPECT_GT(effectCount, 0u);
+}
+
+TEST_F(AudioEffectsFactoryHidlTest, CreateEffect) {
+    description("Verify that an effect can be created via CreateEffect");
+    bool gotEffect = false;
+    Uuid effectUuid;
+    Return<void> ret =
+        effectsFactory->getAllDescriptors([&](Result r, const hidl_vec<EffectDescriptor>& result) {
+            if (r == Result::OK && result.size() > 0) {
+                gotEffect = true;
+                effectUuid = result[0].uuid;
+            }
+        });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_TRUE(gotEffect);
+    Result retval = Result::NOT_INITIALIZED;
+    sp<IEffect> effect;
+    ret = effectsFactory->createEffect(
+        effectUuid, 1 /*session*/, 1 /*ioHandle*/,
+        [&](Result r, const sp<IEffect>& result, uint64_t /*effectId*/) {
+            retval = r;
+            if (r == Result::OK) {
+                effect = result;
+            }
+        });
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    EXPECT_NE(nullptr, effect.get());
+}
+
+TEST_F(AudioEffectsFactoryHidlTest, GetDescriptor) {
+    description(
+        "Verify that effects factory can provide an effect descriptor via "
+        "GetDescriptor");
+    hidl_vec<EffectDescriptor> allDescriptors;
+    Return<void> ret =
+        effectsFactory->getAllDescriptors([&](Result r, const hidl_vec<EffectDescriptor>& result) {
+            if (r == Result::OK) {
+                allDescriptors = result;
+            }
+        });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_GT(allDescriptors.size(), 0u);
+    for (size_t i = 0; i < allDescriptors.size(); ++i) {
+        ret = effectsFactory->getDescriptor(allDescriptors[i].uuid,
+                                            [&](Result r, const EffectDescriptor& result) {
+                                                EXPECT_EQ(r, Result::OK);
+                                                EXPECT_EQ(result, allDescriptors[i]);
+                                            });
+    }
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectsFactoryHidlTest, DebugDumpInvalidArgument) {
+    description("Verify that debugDump doesn't crash on invalid arguments");
+#if MAJOR_VERSION == 2
+    Return<void> ret = effectsFactory->debugDump(hidl_handle());
+#elif MAJOR_VERSION >= 4
+    Return<void> ret = effectsFactory->debug(hidl_handle(), {});
+#endif
+    ASSERT_TRUE(ret.isOk());
+}
+
+// Equalizer effect is required by CDD, but only the type is fixed.
+// This is the same UUID as AudioEffect.EFFECT_TYPE_EQUALIZER in Java.
+static const Uuid EQUALIZER_EFFECT_TYPE = {
+    0x0bed4300, 0xddd6, 0x11db, 0x8f34,
+    std::array<uint8_t, 6>{{0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}};
+// Loudness Enhancer effect is required by CDD, but only the type is fixed.
+// This is the same UUID as AudioEffect.EFFECT_TYPE_LOUDNESS_ENHANCER in Java.
+static const Uuid LOUDNESS_ENHANCER_EFFECT_TYPE = {
+    0xfe3199be, 0xaed0, 0x413f, 0x87bb,
+    std::array<uint8_t, 6>{{0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}}};
+
+// The main test class for Audio Effect HIDL HAL.
+class AudioEffectHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    void SetUp() override {
+        effectsFactory = ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>();
+        ASSERT_NE(nullptr, effectsFactory.get());
+
+        findAndCreateEffect(getEffectType());
+        ASSERT_NE(nullptr, effect.get());
+
+        Return<Result> ret = effect->init();
+        ASSERT_TRUE(ret.isOk());
+        ASSERT_EQ(Result::OK, ret);
+    }
+
+    void TearDown() override {
+        effect.clear();
+        effectsFactory.clear();
+    }
+
+   protected:
+    static void description(const std::string& description) {
+        RecordProperty("description", description);
+    }
+
+    virtual Uuid getEffectType() { return EQUALIZER_EFFECT_TYPE; }
+
+    void findAndCreateEffect(const Uuid& type);
+    void findEffectInstance(const Uuid& type, Uuid* uuid);
+    void getChannelCount(uint32_t* channelCount);
+
+    sp<IEffectsFactory> effectsFactory;
+    sp<IEffect> effect;
+};
+
+void AudioEffectHidlTest::findAndCreateEffect(const Uuid& type) {
+    Uuid effectUuid;
+    findEffectInstance(type, &effectUuid);
+    Return<void> ret = effectsFactory->createEffect(
+        effectUuid, 1 /*session*/, 1 /*ioHandle*/,
+        [&](Result r, const sp<IEffect>& result, uint64_t /*effectId*/) {
+            if (r == Result::OK) {
+                effect = result;
+            }
+        });
+    ASSERT_TRUE(ret.isOk());
+}
+
+void AudioEffectHidlTest::findEffectInstance(const Uuid& type, Uuid* uuid) {
+    bool effectFound = false;
+    Return<void> ret =
+        effectsFactory->getAllDescriptors([&](Result r, const hidl_vec<EffectDescriptor>& result) {
+            if (r == Result::OK) {
+                for (const auto& desc : result) {
+                    if (desc.type == type) {
+                        effectFound = true;
+                        *uuid = desc.uuid;
+                        break;
+                    }
+                }
+            }
+        });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_TRUE(effectFound);
+}
+
+void AudioEffectHidlTest::getChannelCount(uint32_t* channelCount) {
+    Result retval;
+    EffectConfig currentConfig;
+    Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
+        retval = r;
+        if (r == Result::OK) {
+            currentConfig = conf;
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+    ASSERT_TRUE(audio_channel_mask_is_valid(
+        static_cast<audio_channel_mask_t>(currentConfig.outputCfg.channels)));
+    *channelCount = audio_channel_count_from_out_mask(
+        static_cast<audio_channel_mask_t>(currentConfig.outputCfg.channels));
+}
+
+TEST_F(AudioEffectHidlTest, Close) {
+    description("Verify that an effect can be closed");
+    Return<Result> ret = effect->close();
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+}
+
+TEST_F(AudioEffectHidlTest, GetDescriptor) {
+    description("Verify that an effect can return its own descriptor via GetDescriptor");
+    Result retval = Result::NOT_INITIALIZED;
+    Uuid actualType;
+    Return<void> ret = effect->getDescriptor([&](Result r, const EffectDescriptor& desc) {
+        retval = r;
+        if (r == Result::OK) {
+            actualType = desc.type;
+        }
+    });
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    EXPECT_EQ(getEffectType(), actualType);
+}
+
+TEST_F(AudioEffectHidlTest, GetSetConfig) {
+    description(
+        "Verify that it is possible to manipulate effect config via Get / "
+        "SetConfig");
+    Result retval = Result::NOT_INITIALIZED;
+    EffectConfig currentConfig;
+    Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
+        retval = r;
+        if (r == Result::OK) {
+            currentConfig = conf;
+        }
+    });
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    Return<Result> ret2 = effect->setConfig(currentConfig, nullptr, nullptr);
+    EXPECT_TRUE(ret2.isOk());
+    EXPECT_EQ(Result::OK, ret2);
+}
+
+TEST_F(AudioEffectHidlTest, GetConfigReverse) {
+    description("Verify that GetConfigReverse does not crash");
+    Return<void> ret = effect->getConfigReverse([&](Result, const EffectConfig&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, GetSupportedAuxChannelsConfigs) {
+    description("Verify that GetSupportedAuxChannelsConfigs does not crash");
+    Return<void> ret = effect->getSupportedAuxChannelsConfigs(
+        0, [&](Result, const hidl_vec<EffectAuxChannelsConfig>&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, GetAuxChannelsConfig) {
+    description("Verify that GetAuxChannelsConfig does not crash");
+    Return<void> ret = effect->getAuxChannelsConfig([&](Result, const EffectAuxChannelsConfig&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, SetAuxChannelsConfig) {
+    description("Verify that SetAuxChannelsConfig does not crash");
+    Return<Result> ret = effect->setAuxChannelsConfig(EffectAuxChannelsConfig());
+    EXPECT_TRUE(ret.isOk());
+}
+
+// Not generated automatically because AudioBuffer contains
+// instances of hidl_memory which can't be compared properly
+// in general case due to presence of handles.
+//
+// However, in this particular case, handles must not present
+// thus comparison is possible.
+//
+// operator== must be defined in the same namespace as the structures.
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+inline bool operator==(const AudioBuffer& lhs, const AudioBuffer& rhs) {
+    return lhs.id == rhs.id && lhs.frameCount == rhs.frameCount && lhs.data.handle() == nullptr &&
+           rhs.data.handle() == nullptr;
+}
+
+inline bool operator==(const EffectBufferConfig& lhs, const EffectBufferConfig& rhs) {
+    return lhs.buffer == rhs.buffer && lhs.samplingRateHz == rhs.samplingRateHz &&
+           lhs.channels == rhs.channels && lhs.format == rhs.format &&
+           lhs.accessMode == rhs.accessMode && lhs.mask == rhs.mask;
+}
+
+inline bool operator==(const EffectConfig& lhs, const EffectConfig& rhs) {
+    return lhs.inputCfg == rhs.inputCfg && lhs.outputCfg == rhs.outputCfg;
+}
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+TEST_F(AudioEffectHidlTest, Reset) {
+    description("Verify that Reset preserves effect configuration");
+    Result retval = Result::NOT_INITIALIZED;
+    EffectConfig originalConfig;
+    Return<void> ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
+        retval = r;
+        if (r == Result::OK) {
+            originalConfig = conf;
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+    Return<Result> ret2 = effect->reset();
+    EXPECT_TRUE(ret2.isOk());
+    EXPECT_EQ(Result::OK, ret2);
+    EffectConfig configAfterReset;
+    ret = effect->getConfig([&](Result r, const EffectConfig& conf) {
+        retval = r;
+        if (r == Result::OK) {
+            configAfterReset = conf;
+        }
+    });
+    EXPECT_EQ(originalConfig, configAfterReset);
+}
+
+TEST_F(AudioEffectHidlTest, DisableEnableDisable) {
+    description("Verify Disable -> Enable -> Disable sequence for an effect");
+    Return<Result> ret = effect->disable();
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::INVALID_ARGUMENTS, ret);
+    ret = effect->enable();
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+    ret = effect->disable();
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+}
+
+TEST_F(AudioEffectHidlTest, SetDevice) {
+    description("Verify that SetDevice works for an output chain effect");
+    Return<Result> ret = effect->setDevice(mkEnumBitfield(AudioDevice::OUT_SPEAKER));
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+}
+
+TEST_F(AudioEffectHidlTest, SetAndGetVolume) {
+    description("Verify that SetAndGetVolume method works for an effect");
+    uint32_t channelCount;
+    getChannelCount(&channelCount);
+    hidl_vec<uint32_t> volumes;
+    volumes.resize(channelCount);
+    for (uint32_t i = 0; i < channelCount; ++i) {
+        volumes[i] = 0;
+    }
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret =
+        effect->setAndGetVolume(volumes, [&](Result r, const hidl_vec<uint32_t>&) { retval = r; });
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, retval);
+}
+
+TEST_F(AudioEffectHidlTest, VolumeChangeNotification) {
+    description("Verify that effect accepts VolumeChangeNotification");
+    uint32_t channelCount;
+    getChannelCount(&channelCount);
+    hidl_vec<uint32_t> volumes;
+    volumes.resize(channelCount);
+    for (uint32_t i = 0; i < channelCount; ++i) {
+        volumes[i] = 0;
+    }
+    Return<Result> ret = effect->volumeChangeNotification(volumes);
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+}
+
+TEST_F(AudioEffectHidlTest, SetAudioMode) {
+    description("Verify that SetAudioMode works for an effect");
+    Return<Result> ret = effect->setAudioMode(AudioMode::NORMAL);
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+}
+
+TEST_F(AudioEffectHidlTest, SetConfigReverse) {
+    description("Verify that SetConfigReverse does not crash");
+    Return<Result> ret = effect->setConfigReverse(EffectConfig(), nullptr, nullptr);
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, SetInputDevice) {
+    description("Verify that SetInputDevice does not crash");
+    Return<Result> ret = effect->setInputDevice(mkEnumBitfield(AudioDevice::IN_BUILTIN_MIC));
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, SetAudioSource) {
+    description("Verify that SetAudioSource does not crash");
+    Return<Result> ret = effect->setAudioSource(AudioSource::MIC);
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, Offload) {
+    description("Verify that calling Offload method does not crash");
+    EffectOffloadParameter offloadParam;
+    offloadParam.isOffload = false;
+    offloadParam.ioHandle = static_cast<int>(AudioHandleConsts::AUDIO_IO_HANDLE_NONE);
+    Return<Result> ret = effect->offload(offloadParam);
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, PrepareForProcessing) {
+    description("Verify that PrepareForProcessing method works for an effect");
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = effect->prepareForProcessing(
+        [&](Result r, const MQDescriptorSync<Result>&) { retval = r; });
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, retval);
+}
+
+TEST_F(AudioEffectHidlTest, SetProcessBuffers) {
+    description("Verify that SetProcessBuffers works for an effect");
+    sp<IAllocator> ashmem = IAllocator::getService("ashmem");
+    ASSERT_NE(nullptr, ashmem.get());
+    bool success = false;
+    AudioBuffer buffer;
+    Return<void> ret = ashmem->allocate(1024, [&](bool s, const hidl_memory& memory) {
+        success = s;
+        if (s) {
+            buffer.data = memory;
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_TRUE(success);
+    Return<Result> ret2 = effect->setProcessBuffers(buffer, buffer);
+    EXPECT_TRUE(ret2.isOk());
+    EXPECT_EQ(Result::OK, ret2);
+}
+
+TEST_F(AudioEffectHidlTest, Command) {
+    description("Verify that Command does not crash");
+    Return<void> ret =
+        effect->command(0, hidl_vec<uint8_t>(), 0, [&](int32_t, const hidl_vec<uint8_t>&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, SetParameter) {
+    description("Verify that SetParameter does not crash");
+    Return<Result> ret = effect->setParameter(hidl_vec<uint8_t>(), hidl_vec<uint8_t>());
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, GetParameter) {
+    description("Verify that GetParameter does not crash");
+    Return<void> ret =
+        effect->getParameter(hidl_vec<uint8_t>(), 0, [&](Result, const hidl_vec<uint8_t>&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, GetSupportedConfigsForFeature) {
+    description("Verify that GetSupportedConfigsForFeature does not crash");
+    Return<void> ret = effect->getSupportedConfigsForFeature(
+        0, 0, 0, [&](Result, uint32_t, const hidl_vec<uint8_t>&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, GetCurrentConfigForFeature) {
+    description("Verify that GetCurrentConfigForFeature does not crash");
+    Return<void> ret =
+        effect->getCurrentConfigForFeature(0, 0, [&](Result, const hidl_vec<uint8_t>&) {});
+    EXPECT_TRUE(ret.isOk());
+}
+
+TEST_F(AudioEffectHidlTest, SetCurrentConfigForFeature) {
+    description("Verify that SetCurrentConfigForFeature does not crash");
+    Return<Result> ret = effect->setCurrentConfigForFeature(0, hidl_vec<uint8_t>());
+    EXPECT_TRUE(ret.isOk());
+}
+
+// The main test class for Equalizer Audio Effect HIDL HAL.
+class EqualizerAudioEffectHidlTest : public AudioEffectHidlTest {
+   public:
+    void SetUp() override {
+        AudioEffectHidlTest::SetUp();
+        equalizer = IEqualizerEffect::castFrom(effect);
+        ASSERT_NE(nullptr, equalizer.get());
+    }
+
+   protected:
+    Uuid getEffectType() override { return EQUALIZER_EFFECT_TYPE; }
+    void getNumBands(uint16_t* numBands);
+    void getLevelRange(int16_t* minLevel, int16_t* maxLevel);
+    void getBandFrequencyRange(uint16_t band, uint32_t* minFreq, uint32_t* centerFreq,
+                               uint32_t* maxFreq);
+    void getPresetCount(size_t* count);
+
+    sp<IEqualizerEffect> equalizer;
+};
+
+void EqualizerAudioEffectHidlTest::getNumBands(uint16_t* numBands) {
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = equalizer->getNumBands([&](Result r, uint16_t b) {
+        retval = r;
+        if (retval == Result::OK) {
+            *numBands = b;
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+}
+
+void EqualizerAudioEffectHidlTest::getLevelRange(int16_t* minLevel, int16_t* maxLevel) {
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = equalizer->getLevelRange([&](Result r, int16_t min, int16_t max) {
+        retval = r;
+        if (retval == Result::OK) {
+            *minLevel = min;
+            *maxLevel = max;
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+}
+
+void EqualizerAudioEffectHidlTest::getBandFrequencyRange(uint16_t band, uint32_t* minFreq,
+                                                         uint32_t* centerFreq, uint32_t* maxFreq) {
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret =
+        equalizer->getBandFrequencyRange(band, [&](Result r, uint32_t min, uint32_t max) {
+            retval = r;
+            if (retval == Result::OK) {
+                *minFreq = min;
+                *maxFreq = max;
+            }
+        });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+    ret = equalizer->getBandCenterFrequency(band, [&](Result r, uint32_t center) {
+        retval = r;
+        if (retval == Result::OK) {
+            *centerFreq = center;
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+}
+
+void EqualizerAudioEffectHidlTest::getPresetCount(size_t* count) {
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = equalizer->getPresetNames([&](Result r, const hidl_vec<hidl_string>& names) {
+        retval = r;
+        if (retval == Result::OK) {
+            *count = names.size();
+        }
+    });
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_EQ(Result::OK, retval);
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetNumBands) {
+    description("Verify that Equalizer effect reports at least one band");
+    uint16_t numBands = 0;
+    getNumBands(&numBands);
+    EXPECT_GT(numBands, 0);
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetLevelRange) {
+    description("Verify that Equalizer effect reports adequate band level range");
+    int16_t minLevel = 0x7fff, maxLevel = 0;
+    getLevelRange(&minLevel, &maxLevel);
+    EXPECT_GT(maxLevel, minLevel);
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetSetBandLevel) {
+    description("Verify that manipulating band levels works for Equalizer effect");
+    uint16_t numBands = 0;
+    getNumBands(&numBands);
+    ASSERT_GT(numBands, 0);
+    int16_t levels[3]{0x7fff, 0, 0};
+    getLevelRange(&levels[0], &levels[2]);
+    ASSERT_GT(levels[2], levels[0]);
+    levels[1] = (levels[2] + levels[0]) / 2;
+    for (uint16_t i = 0; i < numBands; ++i) {
+        for (size_t j = 0; j < ARRAY_SIZE(levels); ++j) {
+            Return<Result> ret = equalizer->setBandLevel(i, levels[j]);
+            EXPECT_TRUE(ret.isOk());
+            EXPECT_EQ(Result::OK, ret);
+            Result retval = Result::NOT_INITIALIZED;
+            int16_t actualLevel;
+            Return<void> ret2 = equalizer->getBandLevel(i, [&](Result r, int16_t l) {
+                retval = r;
+                if (retval == Result::OK) {
+                    actualLevel = l;
+                }
+            });
+            EXPECT_TRUE(ret2.isOk());
+            EXPECT_EQ(Result::OK, retval);
+            EXPECT_EQ(levels[j], actualLevel);
+        }
+    }
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetBandCenterFrequencyAndRange) {
+    description("Verify that Equalizer effect reports adequate band frequency range");
+    uint16_t numBands = 0;
+    getNumBands(&numBands);
+    ASSERT_GT(numBands, 0);
+    for (uint16_t i = 0; i < numBands; ++i) {
+        uint32_t minFreq = 0xffffffff, centerFreq = 0xffffffff, maxFreq = 0xffffffff;
+        getBandFrequencyRange(i, &minFreq, &centerFreq, &maxFreq);
+        // Note: NXP legacy implementation reports "1" as upper bound for last band,
+        // so this check fails.
+        EXPECT_GE(maxFreq, centerFreq);
+        EXPECT_GE(centerFreq, minFreq);
+    }
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetBandForFrequency) {
+    description("Verify that Equalizer effect supports GetBandForFrequency correctly");
+    uint16_t numBands = 0;
+    getNumBands(&numBands);
+    ASSERT_GT(numBands, 0);
+    for (uint16_t i = 0; i < numBands; ++i) {
+        uint32_t freqs[3]{0, 0, 0};
+        getBandFrequencyRange(i, &freqs[0], &freqs[1], &freqs[2]);
+        // NXP legacy implementation reports "1" as upper bound for last band, some
+        // of the checks fail.
+        for (size_t j = 0; j < ARRAY_SIZE(freqs); ++j) {
+            if (j == 0) {
+                freqs[j]++;
+            }  // Min frequency is an open interval.
+            Result retval = Result::NOT_INITIALIZED;
+            uint16_t actualBand = numBands + 1;
+            Return<void> ret = equalizer->getBandForFrequency(freqs[j], [&](Result r, uint16_t b) {
+                retval = r;
+                if (retval == Result::OK) {
+                    actualBand = b;
+                }
+            });
+            EXPECT_TRUE(ret.isOk());
+            EXPECT_EQ(Result::OK, retval);
+            EXPECT_EQ(i, actualBand) << "Frequency: " << freqs[j];
+        }
+    }
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetPresetNames) {
+    description("Verify that Equalizer effect reports at least one preset");
+    size_t presetCount;
+    getPresetCount(&presetCount);
+    EXPECT_GT(presetCount, 0u);
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetSetCurrentPreset) {
+    description("Verify that manipulating the current preset for Equalizer effect");
+    size_t presetCount;
+    getPresetCount(&presetCount);
+    ASSERT_GT(presetCount, 0u);
+    for (uint16_t i = 0; i < presetCount; ++i) {
+        Return<Result> ret = equalizer->setCurrentPreset(i);
+        EXPECT_TRUE(ret.isOk());
+        EXPECT_EQ(Result::OK, ret);
+        Result retval = Result::NOT_INITIALIZED;
+        uint16_t actualPreset = 0xffff;
+        Return<void> ret2 = equalizer->getCurrentPreset([&](Result r, uint16_t p) {
+            retval = r;
+            if (retval == Result::OK) {
+                actualPreset = p;
+            }
+        });
+        EXPECT_TRUE(ret2.isOk());
+        EXPECT_EQ(Result::OK, retval);
+        EXPECT_EQ(i, actualPreset);
+    }
+}
+
+TEST_F(EqualizerAudioEffectHidlTest, GetSetAllProperties) {
+    description(
+        "Verify that setting band levels and presets works via Get / "
+        "SetAllProperties for Equalizer effect");
+    using AllProperties =
+        ::android::hardware::audio::effect::CPP_VERSION::IEqualizerEffect::AllProperties;
+    uint16_t numBands = 0;
+    getNumBands(&numBands);
+    ASSERT_GT(numBands, 0);
+    AllProperties props;
+    props.bandLevels.resize(numBands);
+    for (size_t i = 0; i < numBands; ++i) {
+        props.bandLevels[i] = 0;
+    }
+
+    AllProperties actualProps;
+    Result retval = Result::NOT_INITIALIZED;
+
+    // Verify setting of the band levels via properties.
+    props.curPreset = -1;
+    Return<Result> ret = equalizer->setAllProperties(props);
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+    Return<void> ret2 = equalizer->getAllProperties([&](Result r, AllProperties p) {
+        retval = r;
+        if (retval == Result::OK) {
+            actualProps = p;
+        }
+    });
+    EXPECT_TRUE(ret2.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    EXPECT_EQ(props.bandLevels, actualProps.bandLevels);
+
+    // Verify setting of the current preset via properties.
+    props.curPreset = 0;  // Assuming there is at least one preset.
+    ret = equalizer->setAllProperties(props);
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+    ret2 = equalizer->getAllProperties([&](Result r, AllProperties p) {
+        retval = r;
+        if (retval == Result::OK) {
+            actualProps = p;
+        }
+    });
+    EXPECT_TRUE(ret2.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    EXPECT_EQ(props.curPreset, actualProps.curPreset);
+}
+
+// The main test class for Equalizer Audio Effect HIDL HAL.
+class LoudnessEnhancerAudioEffectHidlTest : public AudioEffectHidlTest {
+   public:
+    void SetUp() override {
+        AudioEffectHidlTest::SetUp();
+        enhancer = ILoudnessEnhancerEffect::castFrom(effect);
+        ASSERT_NE(nullptr, enhancer.get());
+    }
+
+   protected:
+    Uuid getEffectType() override { return LOUDNESS_ENHANCER_EFFECT_TYPE; }
+
+    sp<ILoudnessEnhancerEffect> enhancer;
+};
+
+TEST_F(LoudnessEnhancerAudioEffectHidlTest, GetSetTargetGain) {
+    description(
+        "Verify that manipulating the target gain works for Loudness Enhancer "
+        "effect");
+    const int32_t gain = 100;
+    Return<Result> ret = enhancer->setTargetGain(gain);
+    EXPECT_TRUE(ret.isOk());
+    EXPECT_EQ(Result::OK, ret);
+    int32_t actualGain = 0;
+    Result retval;
+    Return<void> ret2 = enhancer->getTargetGain([&](Result r, int32_t g) {
+        retval = r;
+        if (retval == Result::OK) {
+            actualGain = g;
+        }
+    });
+    EXPECT_TRUE(ret2.isOk());
+    EXPECT_EQ(Result::OK, retval);
+    EXPECT_EQ(gain, actualGain);
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(AudioEffectsFactoryHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    AudioEffectsFactoryHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/automotive/OWNERS b/automotive/OWNERS
new file mode 100644
index 0000000..4a94494
--- /dev/null
+++ b/automotive/OWNERS
@@ -0,0 +1,3 @@
+randolphs@google.com
+pirozzoj@google.com
+twasilczyk@google.com
diff --git a/automotive/evs/1.0/IEvsEnumerator.hal b/automotive/evs/1.0/IEvsEnumerator.hal
index e1193d0..ee51e7e 100644
--- a/automotive/evs/1.0/IEvsEnumerator.hal
+++ b/automotive/evs/1.0/IEvsEnumerator.hal
@@ -57,7 +57,8 @@
      *
      * There can be at most one EVS display object for the system and this function
      * requests access to it. If the EVS display is not available or is already in use,
-     * a null pointer is returned.
+     * the old instance shall be closed and give the new caller exclusive
+     * access.
      * When done using the display, the caller may release it by calling closeDisplay().
      * TODO(b/36122635) Reliance on the sp<> going out of scope is not recommended because the
      * resources may not be released right away due to asynchronos behavior in the hardware binder.
diff --git a/automotive/evs/OWNERS b/automotive/evs/OWNERS
new file mode 100644
index 0000000..fec2a3a
--- /dev/null
+++ b/automotive/evs/OWNERS
@@ -0,0 +1,3 @@
+changyeon@google.com
+haoxiangl@google.com
+swan@google.com
diff --git a/automotive/vehicle/2.0/Android.bp b/automotive/vehicle/2.0/Android.bp
index 6af774e..f64028c 100644
--- a/automotive/vehicle/2.0/Android.bp
+++ b/automotive/vehicle/2.0/Android.bp
@@ -30,7 +30,6 @@
         "StatusCode",
         "SubscribeFlags",
         "SubscribeOptions",
-        "VehicleApPowerBootupReason",
         "VehicleApPowerStateConfigFlag",
         "VehicleApPowerStateReport",
         "VehicleApPowerStateReq",
diff --git a/automotive/vehicle/2.0/default/Android.bp b/automotive/vehicle/2.0/default/Android.bp
index 62a39df..a11d452 100644
--- a/automotive/vehicle/2.0/default/Android.bp
+++ b/automotive/vehicle/2.0/default/Android.bp
@@ -58,12 +58,14 @@
     vendor: true,
     defaults: ["vhal_v2_0_defaults"],
     srcs: [
+        "impl/vhal_v2_0/CommConn.cpp",
         "impl/vhal_v2_0/EmulatedVehicleHal.cpp",
         "impl/vhal_v2_0/VehicleEmulator.cpp",
         "impl/vhal_v2_0/PipeComm.cpp",
         "impl/vhal_v2_0/SocketComm.cpp",
         "impl/vhal_v2_0/LinearFakeValueGenerator.cpp",
         "impl/vhal_v2_0/JsonFakeValueGenerator.cpp",
+        "impl/vhal_v2_0/GeneratorHub.cpp",
     ],
     local_include_dirs: ["common/include/vhal_v2_0"],
     export_include_dirs: ["impl"],
diff --git a/automotive/vehicle/2.0/default/OWNERS b/automotive/vehicle/2.0/default/OWNERS
deleted file mode 100644
index d5d9d4c..0000000
--- a/automotive/vehicle/2.0/default/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-egranata@google.com
-pavelm@google.com
-spaik@google.com
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommBase.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommBase.h
deleted file mode 100644
index 6832ad3..0000000
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommBase.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef android_hardware_automotive_vehicle_V2_0_impl_CommBase_H_
-#define android_hardware_automotive_vehicle_V2_0_impl_CommBase_H_
-
-#include <string>
-#include <vector>
-
-namespace android {
-namespace hardware {
-namespace automotive {
-namespace vehicle {
-namespace V2_0 {
-
-namespace impl {
-
-/**
- * This is the communications base class.  It defines the interface used in DefaultVehicleHal to
- * send and receive data to and from the emulator.
- */
-class CommBase {
-public:
-    virtual ~CommBase() = default;
-
-    /**
-     * Closes a connection if it is open.
-     */
-    virtual void stop() {}
-
-    /**
-     * Creates a connection to the other side.
-     *
-     * @return int Returns fd or socket number if connection is successful.
-     *              Otherwise, returns -1 if no connection is availble.
-     */
-    virtual int connect() { return 0; }
-
-    /**
-     * Opens the communications channel.
-     *
-     * @return int Returns 0 if channel is opened, else -errno if failed.
-     */
-    virtual int open() = 0;
-
-    /**
-     * Blocking call to read data from the connection.
-     *
-     * @return std::vector<uint8_t> Serialized protobuf data received from emulator.  This will be
-     *              an empty vector if the connection was closed or some other error occurred.
-     */
-    virtual std::vector<uint8_t> read() = 0;
-
-    /**
-     * Transmits a string of data to the emulator.
-     *
-     * @param data Serialized protobuf data to transmit.
-     *
-     * @return int Number of bytes transmitted, or -1 if failed.
-     */
-    virtual int write(const std::vector<uint8_t>& data) = 0;
-};
-
-}  // impl
-
-}  // namespace V2_0
-}  // namespace vehicle
-}  // namespace automotive
-}  // namespace hardware
-}  // namespace android
-
-
-#endif  // android_hardware_automotive_vehicle_V2_0_impl_CommBase_H_
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommConn.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommConn.cpp
new file mode 100644
index 0000000..bf1de81
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommConn.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CommConn"
+
+#include <thread>
+
+#include <android/hardware/automotive/vehicle/2.0/IVehicle.h>
+#include <log/log.h>
+
+#include "CommConn.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+void CommConn::start() {
+    mReadThread = std::make_unique<std::thread>(std::bind(&CommConn::readThread, this));
+}
+
+void CommConn::stop() {
+    if (mReadThread->joinable()) {
+        mReadThread->join();
+    }
+}
+
+void CommConn::sendMessage(emulator::EmulatorMessage const& msg) {
+    int numBytes = msg.ByteSize();
+    std::vector<uint8_t> buffer(static_cast<size_t>(numBytes));
+    if (!msg.SerializeToArray(buffer.data(), numBytes)) {
+        ALOGE("%s: SerializeToString failed!", __func__);
+        return;
+    }
+
+    write(buffer);
+}
+
+void CommConn::readThread() {
+    std::vector<uint8_t> buffer;
+    while (isOpen()) {
+        buffer = read();
+        if (buffer.size() == 0) {
+            ALOGI("%s: Read returned empty message, exiting read loop.", __func__);
+            break;
+        }
+
+        emulator::EmulatorMessage rxMsg;
+        if (rxMsg.ParseFromArray(buffer.data(), static_cast<int32_t>(buffer.size()))) {
+            emulator::EmulatorMessage respMsg;
+            mMessageProcessor->processMessage(rxMsg, respMsg);
+
+            sendMessage(respMsg);
+        }
+    }
+}
+
+}  // namespace impl
+
+}  // namespace V2_0
+}  // namespace vehicle
+}  // namespace automotive
+}  // namespace hardware
+}  // namespace android
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommConn.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommConn.h
new file mode 100644
index 0000000..87b0dfc
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/CommConn.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_automotive_vehicle_V2_0_impl_CommBase_H_
+#define android_hardware_automotive_vehicle_V2_0_impl_CommBase_H_
+
+#include <android/hardware/automotive/vehicle/2.0/IVehicle.h>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "VehicleHalProto.pb.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+/**
+ * MessageProcess is an interface implemented by VehicleEmulator to process messages received
+ * over a CommConn.
+ */
+class MessageProcessor {
+   public:
+    virtual ~MessageProcessor() = default;
+
+    /**
+     * Process a single message received over a CommConn. Populate the given respMsg with the reply
+     * message we should send.
+     */
+    virtual void processMessage(emulator::EmulatorMessage const& rxMsg,
+                                emulator::EmulatorMessage& respMsg) = 0;
+};
+
+/**
+ * This is the interface that both PipeComm and SocketComm use to represent a connection. The
+ * connection will listen for commands on a separate 'read' thread.
+ */
+class CommConn {
+   public:
+    CommConn(MessageProcessor* messageProcessor) : mMessageProcessor(messageProcessor) {}
+
+    virtual ~CommConn() {}
+
+    /**
+     * Start the read thread reading messages from this connection.
+     */
+    virtual void start();
+
+    /**
+     * Closes a connection if it is open.
+     */
+    virtual void stop();
+
+    /**
+     * Returns true if the connection is open and available to send/receive.
+     */
+    virtual bool isOpen() = 0;
+
+    /**
+     * Blocking call to read data from the connection.
+     *
+     * @return std::vector<uint8_t> Serialized protobuf data received from emulator.  This will be
+     *              an empty vector if the connection was closed or some other error occurred.
+     */
+    virtual std::vector<uint8_t> read() = 0;
+
+    /**
+     * Transmits a string of data to the emulator.
+     *
+     * @param data Serialized protobuf data to transmit.
+     *
+     * @return int Number of bytes transmitted, or -1 if failed.
+     */
+    virtual int write(const std::vector<uint8_t>& data) = 0;
+
+    /**
+     * Serialized and send the given message to the other side.
+     */
+    void sendMessage(emulator::EmulatorMessage const& msg);
+
+   protected:
+    std::unique_ptr<std::thread> mReadThread;
+    MessageProcessor* mMessageProcessor;
+
+    /**
+     * A thread that reads messages in a loop, and responds. You can stop this thread by calling
+     * stop().
+     */
+    void readThread();
+};
+
+}  // namespace impl
+
+}  // namespace V2_0
+}  // namespace vehicle
+}  // namespace automotive
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_automotive_vehicle_V2_0_impl_CommBase_H_
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
index eb9d660..08cdffa 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
@@ -34,6 +34,16 @@
 constexpr int AP_POWER_STATE_REPORT = (int)VehicleProperty::AP_POWER_STATE_REPORT;
 constexpr int DOOR_1_LEFT = (int)VehicleAreaDoor::ROW_1_LEFT;
 constexpr int DOOR_1_RIGHT = (int)VehicleAreaDoor::ROW_1_RIGHT;
+constexpr int DOOR_2_LEFT = (int)VehicleAreaDoor::ROW_2_LEFT;
+constexpr int DOOR_2_RIGHT = (int)VehicleAreaDoor::ROW_2_RIGHT;
+constexpr int DOOR_REAR = (int)VehicleAreaDoor::REAR;
+constexpr int WINDOW_1_LEFT = (int)VehicleAreaWindow::ROW_1_LEFT;
+constexpr int WINDOW_1_RIGHT = (int)VehicleAreaWindow::ROW_1_RIGHT;
+constexpr int WINDOW_2_LEFT = (int)VehicleAreaWindow::ROW_2_LEFT;
+constexpr int WINDOW_2_RIGHT = (int)VehicleAreaWindow::ROW_2_RIGHT;
+constexpr int WINDOW_ROOF_TOP_1 = (int)VehicleAreaWindow::ROOF_TOP_1;
+constexpr int FAN_DIRECTION_FACE = (int)VehicleHvacFanDirection::FACE;
+constexpr int FAN_DIRECTION_FLOOR = (int)VehicleHvacFanDirection::FLOOR;
 constexpr int OBD2_LIVE_FRAME = (int)VehicleProperty::OBD2_LIVE_FRAME;
 constexpr int OBD2_FREEZE_FRAME = (int)VehicleProperty::OBD2_FREEZE_FRAME;
 constexpr int OBD2_FREEZE_FRAME_INFO = (int)VehicleProperty::OBD2_FREEZE_FRAME_INFO;
@@ -44,10 +54,28 @@
 constexpr int ALL_WHEELS =
     (int)(VehicleAreaWheel::LEFT_FRONT | VehicleAreaWheel::RIGHT_FRONT |
           VehicleAreaWheel::LEFT_REAR | VehicleAreaWheel::RIGHT_REAR);
+constexpr int SEAT_1_LEFT = (int)(VehicleAreaSeat::ROW_1_LEFT);
+constexpr int SEAT_1_RIGHT = (int)(VehicleAreaSeat::ROW_1_RIGHT);
 constexpr int HVAC_LEFT = (int)(VehicleAreaSeat::ROW_1_LEFT | VehicleAreaSeat::ROW_2_LEFT |
                                 VehicleAreaSeat::ROW_2_CENTER);
 constexpr int HVAC_RIGHT = (int)(VehicleAreaSeat::ROW_1_RIGHT | VehicleAreaSeat::ROW_2_RIGHT);
 constexpr int HVAC_ALL = HVAC_LEFT | HVAC_RIGHT;
+constexpr int VENDOR_EXTENSION_BOOLEAN_PROPERTY =
+    (int)(0x101 | VehiclePropertyGroup::VENDOR | VehiclePropertyType::BOOLEAN | VehicleArea::DOOR);
+constexpr int VENDOR_EXTENSION_FLOAT_PROPERTY =
+    (int)(0x102 | VehiclePropertyGroup::VENDOR | VehiclePropertyType::FLOAT | VehicleArea::SEAT);
+constexpr int VENDOR_EXTENSION_INT_PROPERTY =
+    (int)(0x103 | VehiclePropertyGroup::VENDOR | VehiclePropertyType::INT32 | VehicleArea::WINDOW);
+constexpr int VENDOR_EXTENSION_STRING_PROPERTY =
+    (int)(0x104 | VehiclePropertyGroup::VENDOR | VehiclePropertyType::STRING | VehicleArea::GLOBAL);
+constexpr int FUEL_DOOR_REAR_LEFT = (int)PortLocationType::REAR_LEFT;
+constexpr int CHARGE_PORT_FRONT_LEFT = (int)PortLocationType::FRONT_LEFT;
+constexpr int LIGHT_STATE_ON = (int)VehicleLightState::ON;
+constexpr int LIGHT_SWITCH_AUTO = (int)VehicleLightSwitch::AUTOMATIC;
+constexpr int WHEEL_FRONT_LEFT = (int)VehicleAreaWheel::LEFT_FRONT;
+constexpr int WHEEL_FRONT_RIGHT = (int)VehicleAreaWheel::RIGHT_FRONT;
+constexpr int WHEEL_REAR_LEFT = (int)VehicleAreaWheel::LEFT_REAR;
+constexpr int WHEEL_REAR_RIGHT = (int)VehicleAreaWheel::RIGHT_REAR;
 
 /**
  * This property is used for test purpose to generate fake events. Here is the test package that
@@ -70,33 +98,39 @@
 enum class FakeDataCommand : int32_t {
     /**
      * Starts linear fake data generation. Caller must provide additional data:
-     *     int32Values[1] - VehicleProperty to which command applies
+     *     int32Values[1] - vehicle property to which command applies
      *     int64Values[0] - periodic interval in nanoseconds
      *     floatValues[0] - initial value
      *     floatValues[1] - dispersion defines the min/max value relative to initial value, where
      *                      max = initial_value + dispersion, min = initial_value - dispersion.
      *                      Dispersion should be non-negative, otherwise the behavior is undefined.
      *     floatValues[2] - increment, with every timer tick the value will be incremented by this
-     *                      amount. When reaching to max value, the current value will be set to min.
-     *                      It should be non-negative, otherwise the behavior is undefined.
+     *                      amount. When reaching to max value, the current value will be set to
+     *                      min. It should be non-negative, otherwise the behavior is undefined.
      */
     StartLinear = 0,
 
-    /** Stops generating of fake data that was triggered by Start commands.
-     *     int32Values[1] - VehicleProperty to which command applies. VHAL will stop the
+    /** Stops linear fake data generation that was triggered by StartLinear commands.
+     *     int32Values[1] - vehicle property to which command applies. VHAL will stop the
      *                      corresponding linear generation for that property.
      */
     StopLinear = 1,
 
     /**
-     * Starts JSON-based fake data generation. Caller must provide a string value specifying
-     * the path to fake value JSON file:
+     * Starts JSON-based fake data generation. It iterates through JSON-encoded VHAL events from a
+     * file and inject them to VHAL. The iteration can be repeated multiple times or infinitely.
+     * Caller must provide additional data:
+     *     int32Values[1] - number of iterations. If it is not provided or -1. The iteration will be
+     *                      repeated infinite times.
      *     stringValue    - path to the fake values JSON file
      */
     StartJson = 2,
 
     /**
-     * Stops JSON-based fake data generation. No additional arguments needed.
+     * Stops JSON-based fake data generation. As multiple JSON-based generation can happen at the
+     * same time. Caller must provide the path of fake value JSON file to stop the corresponding
+     * generation:
+     *     stringValue    - path to the fake values JSON file
      */
     StopJson = 3,
 
@@ -133,8 +167,9 @@
              .prop = toInt(VehicleProperty::INFO_FUEL_CAPACITY),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::STATIC,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
-     .initialValue = {.floatValues = {15000}}},
+     .initialValue = {.floatValues = {15000.0f}}},
 
     {.config =
          {
@@ -149,8 +184,9 @@
              .prop = toInt(VehicleProperty::INFO_EV_BATTERY_CAPACITY),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::STATIC,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
-     .initialValue = {.floatValues = {150000}}},
+     .initialValue = {.floatValues = {150000.0f}}},
 
     {.config =
          {
@@ -162,6 +198,33 @@
 
     {.config =
          {
+             .prop = toInt(VehicleProperty::INFO_DRIVER_SEAT),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::STATIC,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {SEAT_1_LEFT}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::INFO_FUEL_DOOR_LOCATION),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::STATIC,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {FUEL_DOOR_REAR_LEFT}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::INFO_EV_PORT_LOCATION),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::STATIC,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {CHARGE_PORT_FRONT_LEFT}}},
+
+    {.config =
+         {
              .prop = toInt(VehicleProperty::INFO_MAKE),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::STATIC,
@@ -179,6 +242,16 @@
 
     {.config =
          {
+             .prop = toInt(VehicleProperty::INFO_DRIVER_SEAT),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::STATIC,
+             // this was a zoned property on an old vhal, but it is meant to be global
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {SEAT_1_LEFT}}},
+
+    {.config =
+         {
              .prop = toInt(VehicleProperty::PERF_ODOMETER),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
@@ -202,14 +275,16 @@
              .prop = toInt(VehicleProperty::FUEL_LEVEL),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
-     .initialValue = {.floatValues = {15000}}},
+     .initialValue = {.floatValues = {15000.0f}}},
 
     {.config =
          {
              .prop = toInt(VehicleProperty::FUEL_DOOR_OPEN),
-             .access = VehiclePropertyAccess::READ,
+             .access = VehiclePropertyAccess::READ_WRITE,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
      .initialValue = {.int32Values = {0}}},
 
@@ -218,14 +293,16 @@
              .prop = toInt(VehicleProperty::EV_BATTERY_LEVEL),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
-     .initialValue = {.floatValues = {150000}}},
+     .initialValue = {.floatValues = {150000.0f}}},
 
     {.config =
          {
              .prop = toInt(VehicleProperty::EV_CHARGE_PORT_OPEN),
-             .access = VehiclePropertyAccess::READ,
+             .access = VehiclePropertyAccess::READ_WRITE,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
      .initialValue = {.int32Values = {0}}},
 
@@ -234,6 +311,7 @@
              .prop = toInt(VehicleProperty::EV_CHARGE_PORT_CONNECTED),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
      .initialValue = {.int32Values = {0}}},
 
@@ -242,8 +320,41 @@
              .prop = toInt(VehicleProperty::EV_BATTERY_INSTANTANEOUS_CHARGE_RATE),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
-     .initialValue = {.floatValues = {0}}},
+     .initialValue = {.floatValues = {0.0f}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::RANGE_REMAINING),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::CONTINUOUS,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+             .minSampleRate = 1.0f,
+             .maxSampleRate = 2.0f,
+         },
+     .initialValue = {.floatValues = {100.0f}}},  // units in meters
+
+    {.config =
+         {.prop = toInt(VehicleProperty::TIRE_PRESSURE),
+          .access = VehiclePropertyAccess::READ,
+          .changeMode = VehiclePropertyChangeMode::CONTINUOUS,
+          .minSampleRate = 1.0f,
+          .maxSampleRate = 2.0f,
+          .areaConfigs =
+              {VehicleAreaConfig{
+                   .areaId = WHEEL_FRONT_LEFT, .minFloatValue = 100.0f, .maxFloatValue = 300.0f,
+               },
+               VehicleAreaConfig{
+                   .areaId = WHEEL_FRONT_RIGHT, .minFloatValue = 100.0f, .maxFloatValue = 300.0f,
+               },
+               VehicleAreaConfig{
+                   .areaId = WHEEL_REAR_LEFT, .minFloatValue = 100.0f, .maxFloatValue = 300.0f,
+               },
+               VehicleAreaConfig{
+                   .areaId = WHEEL_REAR_RIGHT, .minFloatValue = 100.0f, .maxFloatValue = 300.0f,
+               }}},
+     .initialValue = {.floatValues = {200}}},  // units in kPa
 
     {.config =
          {
@@ -266,6 +377,7 @@
              .prop = toInt(VehicleProperty::FUEL_LEVEL_LOW),
              .access = VehiclePropertyAccess::READ,
              .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
          },
      .initialValue = {.int32Values = {0}}},
 
@@ -283,11 +395,8 @@
                 .areaConfigs = {VehicleAreaConfig{.areaId = HVAC_ALL}},
                 // TODO(bryaneyler): Ideally, this is generated dynamically from
                 // kHvacPowerProperties.
-                .configArray =
-                    {
-                        0x12400500,  // HVAC_FAN_SPEED
-                        0x12400501   // HVAC_FAN_DIRECTION
-                    }},
+                .configArray = {toInt(VehicleProperty::HVAC_FAN_SPEED),
+                                toInt(VehicleProperty::HVAC_FAN_DIRECTION)}},
      .initialValue = {.int32Values = {1}}},
 
     {
@@ -355,6 +464,24 @@
                 .areaConfigs = {VehicleAreaConfig{.areaId = HVAC_ALL}}},
      .initialValue = {.int32Values = {toInt(VehicleHvacFanDirection::FACE)}}},
 
+    {.config = {.prop = toInt(VehicleProperty::HVAC_FAN_DIRECTION_AVAILABLE),
+                .access = VehiclePropertyAccess::READ,
+                .changeMode = VehiclePropertyChangeMode::STATIC,
+                .areaConfigs = {VehicleAreaConfig{.areaId = HVAC_ALL}}},
+     .initialValue = {.int32Values = {FAN_DIRECTION_FACE, FAN_DIRECTION_FLOOR,
+                                      FAN_DIRECTION_FACE | FAN_DIRECTION_FLOOR}}},
+
+    {.config = {.prop = toInt(VehicleProperty::HVAC_SEAT_VENTILATION),
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{
+                                    .areaId = SEAT_1_LEFT, .minInt32Value = 0, .maxInt32Value = 3,
+                                },
+                                VehicleAreaConfig{
+                                    .areaId = SEAT_1_RIGHT, .minInt32Value = 0, .maxInt32Value = 3,
+                                }}},
+     .initialValue = {.int32Values = {0}}},  // 0 is off and +ve values indicate ventilation level.
+
     {.config = {.prop = toInt(VehicleProperty::HVAC_STEERING_WHEEL_HEAT),
                 .access = VehiclePropertyAccess::READ_WRITE,
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
@@ -362,14 +489,29 @@
                     .areaId = (0), .minInt32Value = -2, .maxInt32Value = 2}}},
      .initialValue = {.int32Values = {0}}},  // +ve values for heating and -ve for cooling
 
+    {.config = {.prop = toInt(VehicleProperty::HVAC_SEAT_TEMPERATURE),
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{
+                                    .areaId = SEAT_1_LEFT, .minInt32Value = -2, .maxInt32Value = 2,
+                                },
+                                VehicleAreaConfig{
+                                    .areaId = SEAT_1_RIGHT, .minInt32Value = -2, .maxInt32Value = 2,
+                                }}},
+     .initialValue = {.int32Values = {0}}},  // +ve values for heating and -ve for cooling
+
     {.config = {.prop = toInt(VehicleProperty::HVAC_TEMPERATURE_SET),
                 .access = VehiclePropertyAccess::READ_WRITE,
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
                 .areaConfigs = {VehicleAreaConfig{
-                                    .areaId = HVAC_LEFT, .minFloatValue = 16, .maxFloatValue = 32,
+                                    .areaId = HVAC_LEFT,
+                                    .minFloatValue = 16,
+                                    .maxFloatValue = 32,
                                 },
                                 VehicleAreaConfig{
-                                    .areaId = HVAC_RIGHT, .minFloatValue = 16, .maxFloatValue = 32,
+                                    .areaId = HVAC_RIGHT,
+                                    .minFloatValue = 16,
+                                    .maxFloatValue = 32,
                                 }}},
      .initialAreaValues = {{HVAC_LEFT, {.floatValues = {16}}},
                            {HVAC_RIGHT, {.floatValues = {20}}}}},
@@ -443,12 +585,51 @@
     },
 
     {.config = {.prop = toInt(VehicleProperty::DOOR_LOCK),
-                .access = VehiclePropertyAccess::READ,
+                .access = VehiclePropertyAccess::READ_WRITE,
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
                 .areaConfigs = {VehicleAreaConfig{.areaId = DOOR_1_LEFT},
-                                VehicleAreaConfig{.areaId = DOOR_1_RIGHT}}},
+                                VehicleAreaConfig{.areaId = DOOR_1_RIGHT},
+                                VehicleAreaConfig{.areaId = DOOR_2_LEFT},
+                                VehicleAreaConfig{.areaId = DOOR_2_RIGHT}}},
      .initialAreaValues = {{DOOR_1_LEFT, {.int32Values = {1}}},
-                           {DOOR_1_RIGHT, {.int32Values = {1}}}}},
+                           {DOOR_1_RIGHT, {.int32Values = {1}}},
+                           {DOOR_2_LEFT, {.int32Values = {1}}},
+                           {DOOR_2_RIGHT, {.int32Values = {1}}}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::DOOR_POS),
+             .access = VehiclePropertyAccess::READ_WRITE,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs =
+                 {VehicleAreaConfig{.areaId = DOOR_1_LEFT, .minInt32Value = 0, .maxInt32Value = 1},
+                  VehicleAreaConfig{.areaId = DOOR_1_RIGHT, .minInt32Value = 0, .maxInt32Value = 1},
+                  VehicleAreaConfig{.areaId = DOOR_2_LEFT, .minInt32Value = 0, .maxInt32Value = 1},
+                  VehicleAreaConfig{.areaId = DOOR_2_RIGHT, .minInt32Value = 0, .maxInt32Value = 1},
+                  VehicleAreaConfig{.areaId = DOOR_REAR, .minInt32Value = 0, .maxInt32Value = 1}}},
+     .initialValue = {.int32Values = {0}}},
+
+    {.config = {.prop = toInt(VehicleProperty::WINDOW_LOCK),
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{.areaId = WINDOW_1_RIGHT | WINDOW_2_LEFT |
+                                                            WINDOW_2_RIGHT}}},
+     .initialAreaValues = {{WINDOW_1_RIGHT | WINDOW_2_LEFT | WINDOW_2_RIGHT,
+                            {.int32Values = {0}}}}},
+
+    {.config =
+         {.prop = toInt(VehicleProperty::WINDOW_POS),
+          .access =
+              VehiclePropertyAccess::READ_WRITE,
+          .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+          .areaConfigs =
+              {VehicleAreaConfig{.areaId = WINDOW_1_LEFT, .minInt32Value = 0, .maxInt32Value = 10},
+               VehicleAreaConfig{.areaId = WINDOW_1_RIGHT, .minInt32Value = 0, .maxInt32Value = 10},
+               VehicleAreaConfig{.areaId = WINDOW_2_LEFT, .minInt32Value = 0, .maxInt32Value = 10},
+               VehicleAreaConfig{.areaId = WINDOW_2_RIGHT, .minInt32Value = 0, .maxInt32Value = 10},
+               VehicleAreaConfig{
+                   .areaId = WINDOW_ROOF_TOP_1, .minInt32Value = -10, .maxInt32Value = 10}}},
+     .initialValue = {.int32Values = {0}}},
 
     {.config =
          {
@@ -475,12 +656,12 @@
                 .access = VehiclePropertyAccess::READ,
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
                 .configArray = {3}},
-     .initialValue = {.int32Values = {toInt(VehicleApPowerStateReq::ON_FULL), 0}}},
+     .initialValue = {.int32Values = {toInt(VehicleApPowerStateReq::ON), 0}}},
 
     {.config = {.prop = toInt(VehicleProperty::AP_POWER_STATE_REPORT),
                 .access = VehiclePropertyAccess::WRITE,
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE},
-     .initialValue = {.int32Values = {toInt(VehicleApPowerStateReport::BOOT_COMPLETE), 0}}},
+     .initialValue = {.int32Values = {toInt(VehicleApPowerStateReport::WAIT_FOR_VHAL), 0}}},
 
     {.config = {.prop = toInt(VehicleProperty::DISPLAY_BRIGHTNESS),
                 .access = VehiclePropertyAccess::READ_WRITE,
@@ -488,11 +669,6 @@
                 .areaConfigs = {VehicleAreaConfig{.minInt32Value = 0, .maxInt32Value = 100}}},
      .initialValue = {.int32Values = {100}}},
 
-    {.config = {.prop = toInt(VehicleProperty::AP_POWER_BOOTUP_REASON),
-                .access = VehiclePropertyAccess::READ,
-                .changeMode = VehiclePropertyChangeMode::STATIC},
-     .initialValue = {.int32Values = {toInt(VehicleApPowerBootupReason::USER_POWER_ON)}}},
-
     {
         .config = {.prop = OBD2_LIVE_FRAME,
                    .access = VehiclePropertyAccess::READ,
@@ -520,9 +696,126 @@
                    .configArray = {1}},
     },
 
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::HEADLIGHTS_STATE),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_STATE_ON}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::HIGH_BEAM_LIGHTS_STATE),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_STATE_ON}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::FOG_LIGHTS_STATE),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_STATE_ON}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::HAZARD_LIGHTS_STATE),
+             .access = VehiclePropertyAccess::READ,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_STATE_ON}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::HEADLIGHTS_SWITCH),
+             .access = VehiclePropertyAccess::READ_WRITE,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_SWITCH_AUTO}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::HIGH_BEAM_LIGHTS_SWITCH),
+             .access = VehiclePropertyAccess::READ_WRITE,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_SWITCH_AUTO}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::FOG_LIGHTS_SWITCH),
+             .access = VehiclePropertyAccess::READ_WRITE,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_SWITCH_AUTO}}},
+
+    {.config =
+         {
+             .prop = toInt(VehicleProperty::HAZARD_LIGHTS_SWITCH),
+             .access = VehiclePropertyAccess::READ_WRITE,
+             .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+             .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+         },
+     .initialValue = {.int32Values = {LIGHT_SWITCH_AUTO}}},
+
     {.config = {.prop = VEHICLE_MAP_SERVICE,
                 .access = VehiclePropertyAccess::READ_WRITE,
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE}},
+
+    // Example Vendor Extension properties for testing
+    {.config = {.prop = VENDOR_EXTENSION_BOOLEAN_PROPERTY,
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{.areaId = DOOR_1_LEFT},
+                                VehicleAreaConfig{.areaId = DOOR_1_RIGHT},
+                                VehicleAreaConfig{.areaId = DOOR_2_LEFT},
+                                VehicleAreaConfig{.areaId = DOOR_2_RIGHT}}},
+     .initialAreaValues = {{DOOR_1_LEFT, {.int32Values = {1}}},
+                           {DOOR_1_RIGHT, {.int32Values = {1}}},
+                           {DOOR_2_LEFT, {.int32Values = {0}}},
+                           {DOOR_2_RIGHT, {.int32Values = {0}}}}},
+
+    {.config = {.prop = VENDOR_EXTENSION_FLOAT_PROPERTY,
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{
+                                    .areaId = HVAC_LEFT, .minFloatValue = -10, .maxFloatValue = 10},
+                                VehicleAreaConfig{.areaId = HVAC_RIGHT,
+                                                  .minFloatValue = -10,
+                                                  .maxFloatValue = 10}}},
+     .initialAreaValues = {{HVAC_LEFT, {.floatValues = {1}}}, {HVAC_RIGHT, {.floatValues = {2}}}}},
+
+    {.config = {.prop = VENDOR_EXTENSION_INT_PROPERTY,
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{
+                                    .areaId = (int)VehicleAreaWindow::FRONT_WINDSHIELD,
+                                    .minInt32Value = -100,
+                                    .maxInt32Value = 100},
+                                VehicleAreaConfig{.areaId = (int)VehicleAreaWindow::REAR_WINDSHIELD,
+                                                  .minInt32Value = -100,
+                                                  .maxInt32Value = 100},
+                                VehicleAreaConfig{.areaId = (int)VehicleAreaWindow::ROOF_TOP_1,
+                                                  .minInt32Value = -100,
+                                                  .maxInt32Value = 100}}},
+     .initialAreaValues = {{(int)VehicleAreaWindow::FRONT_WINDSHIELD, {.int32Values = {1}}},
+                           {(int)VehicleAreaWindow::REAR_WINDSHIELD, {.int32Values = {0}}},
+                           {(int)VehicleAreaWindow::ROOF_TOP_1, {.int32Values = {-1}}}}},
+
+    {.config = {.prop = VENDOR_EXTENSION_STRING_PROPERTY,
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE},
+     .initialValue = {.stringValue = "Vendor String Property"}},
 };
 
 }  // impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
index 07695bf..ba81a52 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
@@ -92,10 +92,8 @@
       mHvacPowerProps(std::begin(kHvacPowerProperties), std::end(kHvacPowerProperties)),
       mRecurrentTimer(
           std::bind(&EmulatedVehicleHal::onContinuousPropertyTimer, this, std::placeholders::_1)),
-      mLinearFakeValueGenerator(std::make_unique<LinearFakeValueGenerator>(
-          std::bind(&EmulatedVehicleHal::onFakeValueGenerated, this, std::placeholders::_1))),
-      mJsonFakeValueGenerator(std::make_unique<JsonFakeValueGenerator>(
-          std::bind(&EmulatedVehicleHal::onFakeValueGenerated, this, std::placeholders::_1))) {
+      mGeneratorHub(
+          std::bind(&EmulatedVehicleHal::onFakeValueGenerated, this, std::placeholders::_1)) {
     initStaticConfig();
     for (size_t i = 0; i < arraysize(kVehicleProperties); i++) {
         mPropStore->registerProperty(kVehicleProperties[i].config);
@@ -159,12 +157,28 @@
                 // now, just returns OK; otherwise, hal clients crash with property not supported.
                 return StatusCode::OK;
             case AP_POWER_STATE_REPORT:
-                // This property has different behavior between get/set.  When it is set, the value
-                //  goes to the vehicle but is NOT updated in the property store back to Android.
-                // Commented out for now, because it may mess up automated testing that use the
-                //  emulator interface.
-                // getEmulatorOrDie()->doSetValueFromClient(propValue);
-                return StatusCode::OK;
+                switch (propValue.value.int32Values[0]) {
+                    case toInt(VehicleApPowerStateReport::DEEP_SLEEP_EXIT):
+                    case toInt(VehicleApPowerStateReport::SHUTDOWN_CANCELLED):
+                    case toInt(VehicleApPowerStateReport::WAIT_FOR_VHAL):
+                        // CPMS is in WAIT_FOR_VHAL state, simply move to ON
+                        doHalEvent(createApPowerStateReq(VehicleApPowerStateReq::ON, 0));
+                        break;
+                    case toInt(VehicleApPowerStateReport::DEEP_SLEEP_ENTRY):
+                    case toInt(VehicleApPowerStateReport::SHUTDOWN_START):
+                        // CPMS is in WAIT_FOR_FINISH state, send the FINISHED command
+                        doHalEvent(createApPowerStateReq(VehicleApPowerStateReq::FINISHED, 0));
+                        break;
+                    case toInt(VehicleApPowerStateReport::ON):
+                    case toInt(VehicleApPowerStateReport::SHUTDOWN_POSTPONE):
+                    case toInt(VehicleApPowerStateReport::SHUTDOWN_PREPARE):
+                        // Do nothing
+                        break;
+                    default:
+                        // Unknown state
+                        break;
+                }
+                break;
         }
     }
 
@@ -189,6 +203,7 @@
     }
 
     getEmulatorOrDie()->doSetValueFromClient(propValue);
+    doHalEvent(getValuePool()->obtain(propValue));
 
     return StatusCode::OK;
 }
@@ -343,19 +358,54 @@
     switch (command) {
         case FakeDataCommand::StartLinear: {
             ALOGI("%s, FakeDataCommand::StartLinear", __func__);
-            return mLinearFakeValueGenerator->start(request);
+            if (v.int32Values.size() < 2) {
+                ALOGE("%s: expected property ID in int32Values", __func__);
+                return StatusCode::INVALID_ARG;
+            }
+            if (!v.int64Values.size()) {
+                ALOGE("%s: interval is not provided in int64Values", __func__);
+                return StatusCode::INVALID_ARG;
+            }
+            if (v.floatValues.size() < 3) {
+                ALOGE("%s: expected at least 3 elements in floatValues, got: %zu", __func__,
+                      v.floatValues.size());
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = v.int32Values[1];
+            mGeneratorHub.registerGenerator(cookie,
+                                            std::make_unique<LinearFakeValueGenerator>(request));
+            break;
         }
         case FakeDataCommand::StartJson: {
             ALOGI("%s, FakeDataCommand::StartJson", __func__);
-            return mJsonFakeValueGenerator->start(request);
+            if (v.stringValue.empty()) {
+                ALOGE("%s: path to JSON file is missing", __func__);
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = std::hash<std::string>()(v.stringValue);
+            mGeneratorHub.registerGenerator(cookie,
+                                            std::make_unique<JsonFakeValueGenerator>(request));
+            break;
         }
         case FakeDataCommand::StopLinear: {
             ALOGI("%s, FakeDataCommand::StopLinear", __func__);
-            return mLinearFakeValueGenerator->stop(request);
+            if (v.int32Values.size() < 2) {
+                ALOGE("%s: expected property ID in int32Values", __func__);
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = v.int32Values[1];
+            mGeneratorHub.unregisterGenerator(cookie);
+            break;
         }
         case FakeDataCommand::StopJson: {
             ALOGI("%s, FakeDataCommand::StopJson", __func__);
-            return mJsonFakeValueGenerator->stop(request);
+            if (v.stringValue.empty()) {
+                ALOGE("%s: path to JSON file is missing", __func__);
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = std::hash<std::string>()(v.stringValue);
+            mGeneratorHub.unregisterGenerator(cookie);
+            break;
         }
         case FakeDataCommand::KeyPress: {
             ALOGI("%s, FakeDataCommand::KeyPress", __func__);
@@ -374,6 +424,18 @@
     return StatusCode::OK;
 }
 
+VehicleHal::VehiclePropValuePtr EmulatedVehicleHal::createApPowerStateReq(
+    VehicleApPowerStateReq state, int32_t param) {
+    auto req = getValuePool()->obtain(VehiclePropertyType::INT32_VEC, 2);
+    req->prop = toInt(VehicleProperty::AP_POWER_STATE_REQ);
+    req->areaId = 0;
+    req->timestamp = elapsedRealtimeNano();
+    req->status = VehiclePropertyStatus::AVAILABLE;
+    req->value.int32Values[0] = toInt(state);
+    req->value.int32Values[1] = param;
+    return req;
+}
+
 VehicleHal::VehiclePropValuePtr EmulatedVehicleHal::createHwInputKeyProp(
     VehicleHwKeyInputAction action, int32_t keyCode, int32_t targetDisplay) {
     auto keyEvent = getValuePool()->obtain(VehiclePropertyType::INT32_VEC, 3);
@@ -398,7 +460,7 @@
         mPropStore->writeValue(*updatedPropValue, shouldUpdateStatus);
         auto changeMode = mPropStore->getConfigOrDie(value.prop)->changeMode;
         if (VehiclePropertyChangeMode::ON_CHANGE == changeMode) {
-            doHalEvent(move(updatedPropValue));
+            doHalEvent(std::move(updatedPropValue));
         }
     }
 }
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
index c188aef..78895e3 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
@@ -30,8 +30,7 @@
 #include "vhal_v2_0/VehiclePropertyStore.h"
 
 #include "DefaultConfig.h"
-#include "FakeValueGenerator.h"
-
+#include "GeneratorHub.h"
 #include "VehicleEmulator.h"
 
 namespace android {
@@ -68,6 +67,7 @@
 
     StatusCode handleGenerateFakeDataRequest(const VehiclePropValue& request);
     void onFakeValueGenerated(const VehiclePropValue& value);
+    VehiclePropValuePtr createApPowerStateReq(VehicleApPowerStateReq req, int32_t param);
     VehiclePropValuePtr createHwInputKeyProp(VehicleHwKeyInputAction action, int32_t keyCode,
                                              int32_t targetDisplay);
 
@@ -85,8 +85,7 @@
     VehiclePropertyStore* mPropStore;
     std::unordered_set<int32_t> mHvacPowerProps;
     RecurrentTimer mRecurrentTimer;
-    std::unique_ptr<FakeValueGenerator> mLinearFakeValueGenerator;
-    std::unique_ptr<FakeValueGenerator> mJsonFakeValueGenerator;
+    GeneratorHub mGeneratorHub;
 };
 
 }  // impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/FakeValueGenerator.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/FakeValueGenerator.h
index 1eeb88d..d6ad77d 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/FakeValueGenerator.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/FakeValueGenerator.h
@@ -27,28 +27,22 @@
 
 namespace impl {
 
-using OnHalEvent = std::function<void(const VehiclePropValue& event)>;
-using MuxGuard = std::lock_guard<std::mutex>;
-
 class FakeValueGenerator {
 public:
     virtual ~FakeValueGenerator() = default;
-    /**
-     * Starts generating VHAL events
-     *
-     * @param request in VehiclePropValue with required information to start fake data generation
-     * @return StatusCode of the start request
-     */
-    virtual StatusCode start(const VehiclePropValue& request) = 0;
-    /**
-     * Stops generating VHAL events
-     * @param request in VehiclePropValue with required information to stop fake data generation
-     * @return StatusCode of the stop request
-     */
-    virtual StatusCode stop(const VehiclePropValue& request) = 0;
+
+    virtual VehiclePropValue nextEvent() = 0;
+
+    virtual bool hasNext() = 0;
 };
 
-}  // impl
+using Clock = std::chrono::steady_clock;
+using Nanos = std::chrono::nanoseconds;
+using TimePoint = std::chrono::time_point<Clock, Nanos>;
+
+using FakeValueGeneratorPtr = std::unique_ptr<FakeValueGenerator>;
+
+}  // namespace impl
 
 }  // namespace V2_0
 }  // namespace vehicle
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp
new file mode 100644
index 0000000..548285a
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.cpp
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GeneratorHub"
+
+#include <log/log.h>
+
+#include "GeneratorHub.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+GeneratorHub::GeneratorHub(const OnHalEvent& onHalEvent)
+    : mOnHalEvent(onHalEvent), mThread(&GeneratorHub::run, this) {}
+
+void GeneratorHub::registerGenerator(int32_t cookie, FakeValueGeneratorPtr generator) {
+    {
+        std::lock_guard<std::mutex> g(mLock);
+        // Register only if the generator can produce event
+        if (generator->hasNext()) {
+            // Push the next event if it is a new generator
+            if (mGenerators.find(cookie) == mGenerators.end()) {
+                ALOGI("%s: Registering new generator, cookie: %d", __func__, cookie);
+                mEventQueue.push({cookie, generator->nextEvent()});
+            }
+            mGenerators[cookie] = std::move(generator);
+            ALOGI("%s: Registered generator, cookie: %d", __func__, cookie);
+        }
+    }
+    mCond.notify_one();
+}
+
+void GeneratorHub::unregisterGenerator(int32_t cookie) {
+    {
+        std::lock_guard<std::mutex> g(mLock);
+        mGenerators.erase(cookie);
+    }
+    mCond.notify_one();
+    ALOGI("%s: Unregistered generator, cookie: %d", __func__, cookie);
+}
+
+void GeneratorHub::run() {
+    while (true) {
+        std::unique_lock<std::mutex> g(mLock);
+        // Pop events whose generator does not exist (may be already unregistered)
+        while (!mEventQueue.empty()
+               && mGenerators.find(mEventQueue.top().cookie) == mGenerators.end()) {
+             mEventQueue.pop();
+        }
+        // Wait until event queue is not empty
+        mCond.wait(g, [this] { return !mEventQueue.empty(); });
+
+        const VhalEvent& curEvent = mEventQueue.top();
+
+        TimePoint eventTime(Nanos(curEvent.val.timestamp));
+        // Wait until the soonest event happen
+        if (mCond.wait_until(g, eventTime) != std::cv_status::timeout) {
+        // It is possible that a new generator is registered and produced a sooner event, or current
+        // generator is unregistered, in this case the thread will re-evaluate the soonest event
+            ALOGI("Something happened while waiting");
+            continue;
+        }
+        // Now it's time to handle current event.
+        mOnHalEvent(curEvent.val);
+        // Update queue by popping current event and producing next event from the same generator
+        int32_t cookie = curEvent.cookie;
+        mEventQueue.pop();
+        if (hasNext(cookie)) {
+            mEventQueue.push({cookie, mGenerators[cookie]->nextEvent()});
+        } else {
+            ALOGI("%s: Generator ended, unregister it, cookie: %d", __func__, cookie);
+            mGenerators.erase(cookie);
+        }
+    }
+}
+
+bool GeneratorHub::hasNext(int32_t cookie) {
+    return mGenerators.find(cookie) != mGenerators.end() && mGenerators[cookie]->hasNext();
+}
+
+}  // namespace impl
+
+}  // namespace V2_0
+}  // namespace vehicle
+}  // namespace automotive
+}  // namespace hardware
+}  // namespace android
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h
new file mode 100644
index 0000000..dcf6a4f
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/GeneratorHub.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_automotive_vehicle_V2_0_impl_GeneratorHub_H_
+#define android_hardware_automotive_vehicle_V2_0_impl_GeneratorHub_H_
+
+#include <atomic>
+#include <chrono>
+#include <condition_variable>
+#include <iostream>
+#include <queue>
+#include <thread>
+#include <unordered_map>
+
+#include "FakeValueGenerator.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+/**
+ * This is the scheduler for all VHAL event generators. It manages all generators and uses priority
+ * queue to maintain generated events ordered by timestamp. The scheduler uses a single thread to
+ * keep querying and updating the event queue to make sure events from all generators are produced
+ * in order.
+ */
+class GeneratorHub {
+private:
+    struct VhalEvent {
+        int32_t cookie;  // Cookie is used to find the associated generator.
+        VehiclePropValue val;
+    };
+    // Comparator used by priority queue to keep track of soonest event.
+    struct GreaterByTime {
+        bool operator()(const VhalEvent& lhs, const VhalEvent& rhs) const {
+            return lhs.val.timestamp > rhs.val.timestamp;
+        }
+    };
+
+    using OnHalEvent = std::function<void(const VehiclePropValue& event)>;
+
+public:
+    GeneratorHub(const OnHalEvent& onHalEvent);
+    ~GeneratorHub() = default;
+
+    /**
+     * Register a new generator. The generator will be discarded if it could not produce next event.
+     * The existing generator will be overridden if it has the same cookie.
+     */
+    void registerGenerator(int32_t cookie, FakeValueGeneratorPtr generator);
+
+    void unregisterGenerator(int32_t cookie);
+
+private:
+    /**
+     * Main loop of the single thread to producing event and updating event queue.
+     */
+    void run();
+
+    bool hasNext(int32_t cookie);
+
+private:
+    std::priority_queue<VhalEvent, std::vector<VhalEvent>, GreaterByTime> mEventQueue;
+    std::unordered_map<int32_t, FakeValueGeneratorPtr> mGenerators;
+    OnHalEvent mOnHalEvent;
+
+    mutable std::mutex mLock;
+    std::condition_variable mCond;
+    std::thread mThread;
+};
+
+}  // namespace impl
+
+}  // namespace V2_0
+}  // namespace vehicle
+}  // namespace automotive
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_automotive_vehicle_V2_0_impl_GeneratorHub_H_
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp
index 88b8f86..b8fd2ba 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp
@@ -17,6 +17,8 @@
 #define LOG_TAG "JsonFakeValueGenerator"
 
 #include <fstream>
+#include <type_traits>
+#include <typeinfo>
 
 #include <log/log.h>
 #include <vhal_v2_0/VehicleUtils.h>
@@ -31,57 +33,48 @@
 
 namespace impl {
 
-JsonFakeValueGenerator::JsonFakeValueGenerator(const OnHalEvent& onHalEvent)
-    : mOnHalEvent(onHalEvent), mThread(&JsonFakeValueGenerator::loop, this) {}
-
-JsonFakeValueGenerator::~JsonFakeValueGenerator() {
-    mStopRequested = true;
-    {
-        MuxGuard g(mLock);
-        mGenCfg.index = 0;
-        mGenCfg.events.clear();
-    }
-    mCond.notify_one();
-    if (mThread.joinable()) {
-        mThread.join();
-    }
-}
-
-StatusCode JsonFakeValueGenerator::start(const VehiclePropValue& request) {
+JsonFakeValueGenerator::JsonFakeValueGenerator(const VehiclePropValue& request) {
     const auto& v = request.value;
-    if (v.stringValue.empty()) {
-        ALOGE("%s: path to JSON file is missing", __func__);
-        return StatusCode::INVALID_ARG;
-    }
     const char* file = v.stringValue.c_str();
     std::ifstream ifs(file);
     if (!ifs) {
         ALOGE("%s: couldn't open %s for parsing.", __func__, file);
-        return StatusCode::INTERNAL_ERROR;
     }
-    std::vector<VehiclePropValue> fakeVhalEvents = parseFakeValueJson(ifs);
-
-    {
-        MuxGuard g(mLock);
-        mGenCfg = {0, fakeVhalEvents};
-    }
-    mCond.notify_one();
-    return StatusCode::OK;
+    mGenCfg = {
+        .index = 0,
+        .events = parseFakeValueJson(ifs),
+    };
+    // Iterate infinitely if repetition number is not provided
+    mNumOfIterations = v.int32Values.size() < 2 ? -1 : v.int32Values[1];
 }
 
-StatusCode JsonFakeValueGenerator::stop(const VehiclePropValue& request) {
-    const auto& v = request.value;
-    if (!v.stringValue.empty()) {
-        ALOGI("%s: %s", __func__, v.stringValue.c_str());
+VehiclePropValue JsonFakeValueGenerator::nextEvent() {
+    VehiclePropValue generatedValue;
+    if (!hasNext()) {
+        return generatedValue;
     }
+    TimePoint eventTime = Clock::now();
+    if (mGenCfg.index != 0) {
+        // All events (start from 2nd one) are supposed to happen in the future with a delay
+        // equals to the duration between previous and current event.
+        eventTime += Nanos(mGenCfg.events[mGenCfg.index].timestamp -
+                           mGenCfg.events[mGenCfg.index - 1].timestamp);
+    }
+    generatedValue = mGenCfg.events[mGenCfg.index];
+    generatedValue.timestamp = eventTime.time_since_epoch().count();
 
-    {
-        MuxGuard g(mLock);
+    mGenCfg.index++;
+    if (mGenCfg.index == mGenCfg.events.size()) {
         mGenCfg.index = 0;
-        mGenCfg.events.clear();
+        if (mNumOfIterations > 0) {
+            mNumOfIterations--;
+        }
     }
-    mCond.notify_one();
-    return StatusCode::OK;
+    return generatedValue;
+}
+
+bool JsonFakeValueGenerator::hasNext() {
+    return mNumOfIterations != 0 && mGenCfg.events.size() > 0;
 }
 
 std::vector<VehiclePropValue> JsonFakeValueGenerator::parseFakeValueJson(std::istream& is) {
@@ -131,9 +124,14 @@
             case VehiclePropertyType::STRING:
                 value.stringValue = rawEventValue.asString();
                 break;
+            case VehiclePropertyType::MIXED:
+                copyMixedValueJson(value, rawEventValue);
+                if (isDiagnosticProperty(event.prop)) {
+                    value.bytes = generateDiagnosticBytes(value);
+                }
+                break;
             default:
-                ALOGE("%s: unsupported type for property: 0x%x with value: %s", __func__,
-                      event.prop, rawEventValue.asString().c_str());
+                ALOGE("%s: unsupported type for property: 0x%x", __func__, event.prop);
                 continue;
         }
         fakeVhalEvents.push_back(event);
@@ -141,30 +139,60 @@
     return fakeVhalEvents;
 }
 
-void JsonFakeValueGenerator::loop() {
-    static constexpr auto kInvalidTime = TimePoint(Nanos::max());
+void JsonFakeValueGenerator::copyMixedValueJson(VehiclePropValue::RawValue& dest,
+                                                const Json::Value& jsonValue) {
+    copyJsonArray(dest.int32Values, jsonValue["int32Values"]);
+    copyJsonArray(dest.int64Values, jsonValue["int64Values"]);
+    copyJsonArray(dest.floatValues, jsonValue["floatValues"]);
+    dest.stringValue = jsonValue["stringValue"].asString();
+}
 
-    while (!mStopRequested) {
-        auto nextEventTime = kInvalidTime;
-        {
-            MuxGuard g(mLock);
-            if (mGenCfg.index < mGenCfg.events.size()) {
-                mOnHalEvent(mGenCfg.events[mGenCfg.index]);
-            }
-            if (!mGenCfg.events.empty() && mGenCfg.index < mGenCfg.events.size() - 1) {
-                Nanos intervalNano =
-                    static_cast<Nanos>(mGenCfg.events[mGenCfg.index + 1].timestamp -
-                                       mGenCfg.events[mGenCfg.index].timestamp);
-                nextEventTime = Clock::now() + intervalNano;
-            }
-            mGenCfg.index++;
+template <typename T>
+void JsonFakeValueGenerator::copyJsonArray(hidl_vec<T>& dest, const Json::Value& jsonArray) {
+    dest.resize(jsonArray.size());
+    for (Json::Value::ArrayIndex i = 0; i < jsonArray.size(); i++) {
+        if (std::is_same<T, int32_t>::value) {
+            dest[i] = jsonArray[i].asInt();
+        } else if (std::is_same<T, int64_t>::value) {
+            dest[i] = jsonArray[i].asInt64();
+        } else if (std::is_same<T, float>::value) {
+            dest[i] = jsonArray[i].asFloat();
         }
-
-        std::unique_lock<std::mutex> g(mLock);
-        mCond.wait_until(g, nextEventTime);
     }
 }
 
+bool JsonFakeValueGenerator::isDiagnosticProperty(int32_t prop) {
+    return prop == (int32_t)VehicleProperty::OBD2_LIVE_FRAME ||
+           prop == (int32_t)VehicleProperty::OBD2_FREEZE_FRAME;
+}
+
+hidl_vec<uint8_t> JsonFakeValueGenerator::generateDiagnosticBytes(
+    const VehiclePropValue::RawValue& diagnosticValue) {
+    size_t byteSize = ((size_t)DiagnosticIntegerSensorIndex::LAST_SYSTEM_INDEX +
+                       (size_t)DiagnosticFloatSensorIndex::LAST_SYSTEM_INDEX + 2);
+    hidl_vec<uint8_t> bytes(byteSize % 8 == 0 ? byteSize / 8 : byteSize / 8 + 1);
+
+    auto& int32Values = diagnosticValue.int32Values;
+    for (size_t i = 0; i < int32Values.size(); i++) {
+        if (int32Values[i] != 0) {
+            setBit(bytes, i);
+        }
+    }
+
+    auto& floatValues = diagnosticValue.floatValues;
+    for (size_t i = 0; i < floatValues.size(); i++) {
+        if (floatValues[i] != 0.0) {
+            setBit(bytes, i + (size_t)DiagnosticIntegerSensorIndex::LAST_SYSTEM_INDEX + 1);
+        }
+    }
+    return bytes;
+}
+
+void JsonFakeValueGenerator::setBit(hidl_vec<uint8_t>& bytes, size_t idx) {
+    uint8_t mask = 1 << (idx % 8);
+    bytes[idx / 8] |= mask;
+}
+
 }  // namespace impl
 
 }  // namespace V2_0
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h
index 51da4c5..70575f7 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h
@@ -17,11 +17,8 @@
 #ifndef android_hardware_automotive_vehicle_V2_0_impl_JsonFakeValueGenerator_H_
 #define android_hardware_automotive_vehicle_V2_0_impl_JsonFakeValueGenerator_H_
 
-#include <atomic>
 #include <chrono>
-#include <condition_variable>
 #include <iostream>
-#include <thread>
 
 #include <json/json.h>
 
@@ -37,32 +34,33 @@
 
 class JsonFakeValueGenerator : public FakeValueGenerator {
 private:
-    using Nanos = std::chrono::nanoseconds;
-    using Clock = std::chrono::steady_clock;
-    using TimePoint = std::chrono::time_point<Clock, Nanos>;
-
     struct GeneratorCfg {
         size_t index;
         std::vector<VehiclePropValue> events;
     };
 
 public:
-    JsonFakeValueGenerator(const OnHalEvent& onHalEvent);
-    ~JsonFakeValueGenerator();
-    StatusCode start(const VehiclePropValue& request) override;
-    StatusCode stop(const VehiclePropValue& request) override;
+    JsonFakeValueGenerator(const VehiclePropValue& request);
+    ~JsonFakeValueGenerator() = default;
+
+    VehiclePropValue nextEvent();
+
+    bool hasNext();
 
 private:
     std::vector<VehiclePropValue> parseFakeValueJson(std::istream& is);
-    void loop();
+    void copyMixedValueJson(VehiclePropValue::RawValue& dest, const Json::Value& jsonValue);
+
+    template <typename T>
+    void copyJsonArray(hidl_vec<T>& dest, const Json::Value& jsonArray);
+
+    bool isDiagnosticProperty(int32_t prop);
+    hidl_vec<uint8_t> generateDiagnosticBytes(const VehiclePropValue::RawValue& diagnosticValue);
+    void setBit(hidl_vec<uint8_t>& bytes, size_t idx);
 
 private:
-    OnHalEvent mOnHalEvent;
-    std::thread mThread;
-    mutable std::mutex mLock;
-    std::condition_variable mCond;
     GeneratorCfg mGenCfg;
-    std::atomic_bool mStopRequested{false};
+    int32_t mNumOfIterations;
 };
 
 }  // namespace impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.cpp
index 8cb9322..7bdc97c 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.cpp
@@ -29,101 +29,48 @@
 
 namespace impl {
 
-LinearFakeValueGenerator::LinearFakeValueGenerator(const OnHalEvent& onHalEvent)
-    : mOnHalEvent(onHalEvent),
-      mRecurrentTimer(std::bind(&LinearFakeValueGenerator::onTimer, this, std::placeholders::_1)) {}
-
-StatusCode LinearFakeValueGenerator::start(const VehiclePropValue& request) {
+LinearFakeValueGenerator::LinearFakeValueGenerator(const VehiclePropValue& request) {
     const auto& v = request.value;
-    if (v.int32Values.size() < 2) {
-        ALOGE("%s: expected property ID in int32Values", __func__);
-        return StatusCode::INVALID_ARG;
-    }
-    int32_t propId = v.int32Values[1];
-
-    if (!v.int64Values.size()) {
-        ALOGE("%s: interval is not provided in int64Values", __func__);
-        return StatusCode::INVALID_ARG;
-    }
-    auto interval = std::chrono::nanoseconds(v.int64Values[0]);
-
-    if (v.floatValues.size() < 3) {
-        ALOGE("%s: expected at least 3 elements in floatValues, got: %zu", __func__,
-              v.floatValues.size());
-        return StatusCode::INVALID_ARG;
-    }
-    float initialValue = v.floatValues[0];
-    float dispersion = v.floatValues[1];
-    float increment = v.floatValues[2];
-
-    MuxGuard g(mLock);
-    removeLocked(propId);
-    mGenCfg.insert({propId, GeneratorCfg{
-                                .initialValue = initialValue,
-                                .currentValue = initialValue,
-                                .dispersion = dispersion,
-                                .increment = increment,}});
-
-    mRecurrentTimer.registerRecurrentEvent(interval, propId);
-    return StatusCode::OK;
+    mGenCfg = GeneratorCfg{
+        .propId = v.int32Values[1],
+        .initialValue = v.floatValues[0],
+        .currentValue = v.floatValues[0],
+        .dispersion = v.floatValues[1],
+        .increment = v.floatValues[2],
+        .interval = Nanos(v.int64Values[0]),
+    };
 }
 
-StatusCode LinearFakeValueGenerator::stop(const VehiclePropValue& request) {
-    const auto& v = request.value;
-    if (v.int32Values.size() < 2) {
-        ALOGE("%s: expected property ID in int32Values", __func__);
-        return StatusCode::INVALID_ARG;
+VehiclePropValue LinearFakeValueGenerator::nextEvent() {
+    mGenCfg.currentValue += mGenCfg.increment;
+    if (mGenCfg.currentValue > mGenCfg.initialValue + mGenCfg.dispersion) {
+        mGenCfg.currentValue = mGenCfg.initialValue - mGenCfg.dispersion;
     }
-    int32_t propId = v.int32Values[1];
-
-    MuxGuard g(mLock);
-    if (propId == 0) {
-        // Remove all.
-        for (auto&& it : mGenCfg) {
-            removeLocked(it.first);
-        }
-    } else {
-        removeLocked(propId);
+    VehiclePropValue event = {.prop = mGenCfg.propId};
+    auto& value = event.value;
+    switch (getPropType(event.prop)) {
+        case VehiclePropertyType::INT32:
+            value.int32Values.resize(1);
+            value.int32Values[0] = static_cast<int32_t>(mGenCfg.currentValue);
+            break;
+        case VehiclePropertyType::INT64:
+            value.int64Values.resize(1);
+            value.int64Values[0] = static_cast<int64_t>(mGenCfg.currentValue);
+            break;
+        case VehiclePropertyType::FLOAT:
+            value.floatValues.resize(1);
+            value.floatValues[0] = mGenCfg.currentValue;
+            break;
+        default:
+            ALOGE("%s: unsupported property type for 0x%x", __func__, event.prop);
     }
-    return StatusCode::OK;
+    TimePoint eventTime = Clock::now() + mGenCfg.interval;
+    event.timestamp = eventTime.time_since_epoch().count();
+    return event;
 }
 
-void LinearFakeValueGenerator::removeLocked(int propId) {
-    if (mGenCfg.erase(propId)) {
-        mRecurrentTimer.unregisterRecurrentEvent(propId);
-    }
-}
-
-void LinearFakeValueGenerator::onTimer(const std::vector<int32_t>& properties) {
-    MuxGuard g(mLock);
-
-    for (int32_t propId : properties) {
-        auto& cfg = mGenCfg[propId];
-        cfg.currentValue += cfg.increment;
-        if (cfg.currentValue > cfg.initialValue + cfg.dispersion) {
-            cfg.currentValue = cfg.initialValue - cfg.dispersion;
-        }
-        VehiclePropValue event = {.prop = propId};
-        auto& value = event.value;
-        switch (getPropType(event.prop)) {
-            case VehiclePropertyType::INT32:
-                value.int32Values.resize(1);
-                value.int32Values[0] = static_cast<int32_t>(cfg.currentValue);
-                break;
-            case VehiclePropertyType::INT64:
-                value.int64Values.resize(1);
-                value.int64Values[0] = static_cast<int64_t>(cfg.currentValue);
-                break;
-            case VehiclePropertyType::FLOAT:
-                value.floatValues.resize(1);
-                value.floatValues[0] = cfg.currentValue;
-                break;
-            default:
-                ALOGE("%s: unsupported property type for 0x%x", __func__, event.prop);
-                continue;
-        }
-        mOnHalEvent(event);
-    }
+bool LinearFakeValueGenerator::hasNext() {
+    return true;
 }
 
 }  // namespace impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.h
index fe6d097..d3b666d 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/LinearFakeValueGenerator.h
@@ -17,8 +17,6 @@
 #ifndef android_hardware_automotive_vehicle_V2_0_impl_LinearFakeValueGenerator_H_
 #define android_hardware_automotive_vehicle_V2_0_impl_LinearFakeValueGenerator_H_
 
-#include <vhal_v2_0/RecurrentTimer.h>
-
 #include "FakeValueGenerator.h"
 
 namespace android {
@@ -36,27 +34,24 @@
     // to the client.
 
     struct GeneratorCfg {
-        float initialValue;  //
+        int32_t propId;
+        float initialValue;
         float currentValue;  //  Should be in range (initialValue +/- dispersion).
         float dispersion;    //  Defines minimum and maximum value based on initial value.
         float increment;     //  Value that we will be added to currentValue with each timer tick.
+        Nanos interval;
     };
 
 public:
-    LinearFakeValueGenerator(const OnHalEvent& onHalEvent);
+    LinearFakeValueGenerator(const VehiclePropValue& request);
     ~LinearFakeValueGenerator() = default;
-    StatusCode start(const VehiclePropValue& request) override;
-    StatusCode stop(const VehiclePropValue& request) override;
+
+    VehiclePropValue nextEvent();
+
+    bool hasNext();
 
 private:
-    void removeLocked(int propId);
-    void onTimer(const std::vector<int32_t>& properties);
-
-private:
-    mutable std::mutex mLock;
-    OnHalEvent mOnHalEvent;
-    RecurrentTimer mRecurrentTimer;
-    std::unordered_map<int32_t, GeneratorCfg> mGenCfg;
+    GeneratorCfg mGenCfg;
 };
 
 }  // namespace impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp
index 5a9b254..f024287 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp
@@ -33,23 +33,28 @@
 
 namespace impl {
 
-PipeComm::PipeComm() {
-    // Initialize member vars
-    mPipeFd = -1;
-}
+PipeComm::PipeComm(MessageProcessor* messageProcessor) : CommConn(messageProcessor), mPipeFd(-1) {}
 
-
-int PipeComm::open() {
+void PipeComm::start() {
     int fd = qemu_pipe_open(CAR_SERVICE_NAME);
 
     if (fd < 0) {
         ALOGE("%s: Could not open connection to service: %s %d", __FUNCTION__, strerror(errno), fd);
-        return -errno;
+        return;
     }
 
-    ALOGI("%s: OPENED PIPE, fd=%d", __FUNCTION__, fd);
+    ALOGI("%s: Starting pipe connection, fd=%d", __FUNCTION__, fd);
     mPipeFd = fd;
-    return 0;
+
+    CommConn::start();
+}
+
+void PipeComm::stop() {
+    if (mPipeFd > 0) {
+        ::close(mPipeFd);
+        mPipeFd = -1;
+    }
+    CommConn::stop();
 }
 
 std::vector<uint8_t> PipeComm::read() {
@@ -60,16 +65,13 @@
     numBytes = qemu_pipe_frame_recv(mPipeFd, msg.data(), msg.size());
 
     if (numBytes == MAX_RX_MSG_SZ) {
-        ALOGE("%s:  Received max size = %d", __FUNCTION__, MAX_RX_MSG_SZ);
+        ALOGE("%s: Received max size = %d", __FUNCTION__, MAX_RX_MSG_SZ);
     } else if (numBytes > 0) {
         msg.resize(numBytes);
         return msg;
     } else {
         ALOGD("%s: Connection terminated on pipe %d, numBytes=%d", __FUNCTION__, mPipeFd, numBytes);
-        {
-            std::lock_guard<std::mutex> lock(mMutex);
-            mPipeFd = -1;
-        }
+        mPipeFd = -1;
     }
 
     return std::vector<uint8_t>();
@@ -78,11 +80,8 @@
 int PipeComm::write(const std::vector<uint8_t>& data) {
     int retVal = 0;
 
-    {
-        std::lock_guard<std::mutex> lock(mMutex);
-        if (mPipeFd != -1) {
-            retVal = qemu_pipe_frame_send(mPipeFd, data.data(), data.size());
-        }
+    if (mPipeFd != -1) {
+        retVal = qemu_pipe_frame_send(mPipeFd, data.data(), data.size());
     }
 
     if (retVal < 0) {
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.h
index bcd32d0..c8eabb8 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.h
@@ -19,7 +19,7 @@
 
 #include <mutex>
 #include <vector>
-#include "CommBase.h"
+#include "CommConn.h"
 
 namespace android {
 namespace hardware {
@@ -30,38 +30,25 @@
 namespace impl {
 
 /**
- * PipeComm uses a qemu pipe interface to connect to the Goldfish Emulator.
+ * PipeComm opens a qemu pipe to connect to the emulator, allowing the emulator UI to access the
+ * Vehicle HAL and simulate changing properties.
+ *
+ * Since the pipe is a client, it directly implements CommConn, and only one PipeComm can be open
+ * at a time.
  */
-class PipeComm : public CommBase {
-public:
-    PipeComm();
+class PipeComm : public CommConn {
+   public:
+    PipeComm(MessageProcessor* messageProcessor);
 
-    /**
-     * Opens a pipe and begins listening.
-     *
-     * @return int Returns 0 on success.
-     */
-    int open() override;
+    void start() override;
+    void stop() override;
 
-    /**
-     * Blocking call to read data from the connection.
-     *
-     * @return std::vector<uint8_t> Serialized protobuf data received from emulator.  This will be
-     *              an empty vector if the connection was closed or some other error occurred.
-     */
     std::vector<uint8_t> read() override;
-
-    /**
-     * Transmits a string of data to the emulator.
-     *
-     * @param data Serialized protobuf data to transmit.
-     *
-     * @return int Number of bytes transmitted, or -1 if failed.
-     */
     int write(const std::vector<uint8_t>& data) override;
 
-private:
-    std::mutex mMutex;
+    inline bool isOpen() override { return mPipeFd > 0; }
+
+   private:
     int mPipeFd;
 };
 
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.cpp
index 42c1c78..9eb8894 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.cpp
@@ -18,6 +18,7 @@
 
 #include <android/hardware/automotive/vehicle/2.0/IVehicle.h>
 #include <android/log.h>
+#include <arpa/inet.h>
 #include <log/log.h>
 #include <netinet/in.h>
 #include <sys/socket.h>
@@ -35,45 +36,46 @@
 
 namespace impl {
 
-SocketComm::SocketComm() {
-    // Initialize member vars
-    mCurSockFd = -1;
-    mExit      =  0;
-    mSockFd    = -1;
-}
-
+SocketComm::SocketComm(MessageProcessor* messageProcessor)
+    : mListenFd(-1), mMessageProcessor(messageProcessor) {}
 
 SocketComm::~SocketComm() {
-    stop();
 }
 
-int SocketComm::connect() {
-    sockaddr_in cliAddr;
-    socklen_t cliLen = sizeof(cliAddr);
-    int cSockFd = accept(mSockFd, reinterpret_cast<struct sockaddr*>(&cliAddr), &cliLen);
-
-    if (cSockFd >= 0) {
-        {
-            std::lock_guard<std::mutex> lock(mMutex);
-            mCurSockFd = cSockFd;
-        }
-        ALOGD("%s: Incoming connection received on socket %d", __FUNCTION__, cSockFd);
-    } else {
-        cSockFd = -1;
+void SocketComm::start() {
+    if (!listen()) {
+        return;
     }
 
-    return cSockFd;
+    mListenThread = std::make_unique<std::thread>(std::bind(&SocketComm::listenThread, this));
 }
 
-int SocketComm::open() {
+void SocketComm::stop() {
+    if (mListenFd > 0) {
+        ::close(mListenFd);
+        if (mListenThread->joinable()) {
+            mListenThread->join();
+        }
+        mListenFd = -1;
+    }
+}
+
+void SocketComm::sendMessage(emulator::EmulatorMessage const& msg) {
+    std::lock_guard<std::mutex> lock(mMutex);
+    for (std::unique_ptr<SocketConn> const& conn : mOpenConnections) {
+        conn->sendMessage(msg);
+    }
+}
+
+bool SocketComm::listen() {
     int retVal;
     struct sockaddr_in servAddr;
 
-    mSockFd = socket(AF_INET, SOCK_STREAM, 0);
-    if (mSockFd < 0) {
-        ALOGE("%s: socket() failed, mSockFd=%d, errno=%d", __FUNCTION__, mSockFd, errno);
-        mSockFd = -1;
-        return -errno;
+    mListenFd = socket(AF_INET, SOCK_STREAM, 0);
+    if (mListenFd < 0) {
+        ALOGE("%s: socket() failed, mSockFd=%d, errno=%d", __FUNCTION__, mListenFd, errno);
+        mListenFd = -1;
+        return false;
     }
 
     memset(&servAddr, 0, sizeof(servAddr));
@@ -81,82 +83,114 @@
     servAddr.sin_addr.s_addr = INADDR_ANY;
     servAddr.sin_port = htons(DEBUG_SOCKET);
 
-    retVal = bind(mSockFd, reinterpret_cast<struct sockaddr*>(&servAddr), sizeof(servAddr));
+    retVal = bind(mListenFd, reinterpret_cast<struct sockaddr*>(&servAddr), sizeof(servAddr));
     if(retVal < 0) {
         ALOGE("%s: Error on binding: retVal=%d, errno=%d", __FUNCTION__, retVal, errno);
+        close(mListenFd);
+        mListenFd = -1;
+        return false;
+    }
+
+    ALOGI("%s: Listening for connections on port %d", __FUNCTION__, DEBUG_SOCKET);
+    ::listen(mListenFd, 1);
+    return true;
+}
+
+SocketConn* SocketComm::accept() {
+    sockaddr_in cliAddr;
+    socklen_t cliLen = sizeof(cliAddr);
+    int sfd = ::accept(mListenFd, reinterpret_cast<struct sockaddr*>(&cliAddr), &cliLen);
+
+    if (sfd > 0) {
+        char addr[INET_ADDRSTRLEN];
+        inet_ntop(AF_INET, &cliAddr.sin_addr, addr, INET_ADDRSTRLEN);
+
+        ALOGD("%s: Incoming connection received from %s:%d", __FUNCTION__, addr, cliAddr.sin_port);
+        return new SocketConn(mMessageProcessor, sfd);
+    }
+
+    return nullptr;
+}
+
+void SocketComm::listenThread() {
+    while (true) {
+        SocketConn* conn = accept();
+        if (conn == nullptr) {
+            return;
+        }
+
+        conn->start();
+        {
+            std::lock_guard<std::mutex> lock(mMutex);
+            mOpenConnections.push_back(std::unique_ptr<SocketConn>(conn));
+        }
+    }
+}
+
+/**
+ * Called occasionally to clean up connections that have been closed.
+ */
+void SocketComm::removeClosedConnections() {
+    std::lock_guard<std::mutex> lock(mMutex);
+    std::remove_if(mOpenConnections.begin(), mOpenConnections.end(),
+                   [](std::unique_ptr<SocketConn> const& c) { return !c->isOpen(); });
+}
+
+SocketConn::SocketConn(MessageProcessor* messageProcessor, int sfd)
+    : CommConn(messageProcessor), mSockFd(sfd) {}
+
+/**
+ * Reads, in a loop, exactly numBytes from the given fd. If the connection is closed, returns
+ * an empty buffer, otherwise will return exactly the given number of bytes.
+ */
+std::vector<uint8_t> readExactly(int fd, int numBytes) {
+    std::vector<uint8_t> buffer(numBytes);
+    int totalRead = 0;
+    int offset = 0;
+    while (totalRead < numBytes) {
+        int numRead = ::read(fd, &buffer.data()[offset], numBytes - offset);
+        if (numRead == 0) {
+            buffer.resize(0);
+            return buffer;
+        }
+
+        totalRead += numRead;
+    }
+    return buffer;
+}
+
+/**
+ * Reads an int, guaranteed to be non-zero, from the given fd. If the connection is closed, returns
+ * -1.
+ */
+int32_t readInt(int fd) {
+    std::vector<uint8_t> buffer = readExactly(fd, sizeof(int32_t));
+    if (buffer.size() == 0) {
+        return -1;
+    }
+
+    int32_t value = *reinterpret_cast<int32_t*>(buffer.data());
+    return ntohl(value);
+}
+
+std::vector<uint8_t> SocketConn::read() {
+    int32_t msgSize = readInt(mSockFd);
+    if (msgSize <= 0) {
+        ALOGD("%s: Connection terminated on socket %d", __FUNCTION__, mSockFd);
+        return std::vector<uint8_t>();
+    }
+
+    return readExactly(mSockFd, msgSize);
+}
+
+void SocketConn::stop() {
+    if (mSockFd > 0) {
         close(mSockFd);
         mSockFd = -1;
-        return -errno;
-    }
-
-    listen(mSockFd, 1);
-
-    // Set the socket to be non-blocking so we can poll it continouously
-    fcntl(mSockFd, F_SETFL, O_NONBLOCK);
-
-    return 0;
-}
-
-std::vector<uint8_t> SocketComm::read() {
-    int32_t msgSize;
-    int numBytes = 0;
-
-    // This is a variable length message.
-    // Read the number of bytes to rx over the socket
-    numBytes = ::read(mCurSockFd, &msgSize, sizeof(msgSize));
-    msgSize = ntohl(msgSize);
-
-    if (numBytes != sizeof(msgSize)) {
-        // This happens when connection is closed
-        ALOGD("%s: numBytes=%d, expected=4", __FUNCTION__, numBytes);
-        ALOGD("%s: Connection terminated on socket %d", __FUNCTION__, mCurSockFd);
-        {
-            std::lock_guard<std::mutex> lock(mMutex);
-            mCurSockFd = -1;
-        }
-
-        return std::vector<uint8_t>();
-    }
-
-    std::vector<uint8_t> msg = std::vector<uint8_t>(msgSize);
-
-    numBytes = ::read(mCurSockFd, msg.data(), msgSize);
-
-    if ((numBytes == msgSize) && (msgSize > 0)) {
-        // Received a message.
-        return msg;
-    } else {
-        // This happens when connection is closed
-        ALOGD("%s: numBytes=%d, msgSize=%d", __FUNCTION__, numBytes, msgSize);
-        ALOGD("%s: Connection terminated on socket %d", __FUNCTION__, mCurSockFd);
-        {
-            std::lock_guard<std::mutex> lock(mMutex);
-            mCurSockFd = -1;
-        }
-
-        return std::vector<uint8_t>();
     }
 }
 
-void SocketComm::stop() {
-    if (mExit == 0) {
-        std::lock_guard<std::mutex> lock(mMutex);
-        mExit = 1;
-
-        // Close emulator socket if it is open
-        if (mCurSockFd != -1) {
-            close(mCurSockFd);
-            mCurSockFd = -1;
-        }
-
-        if (mSockFd != -1) {
-            close(mSockFd);
-            mSockFd = -1;
-        }
-    }
-}
-
-int SocketComm::write(const std::vector<uint8_t>& data) {
+int SocketConn::write(const std::vector<uint8_t>& data) {
     static constexpr int MSG_HEADER_LEN = 4;
     int retVal = 0;
     union {
@@ -168,19 +202,17 @@
     msgLen = static_cast<uint32_t>(data.size());
     msgLen = htonl(msgLen);
 
-    std::lock_guard<std::mutex> lock(mMutex);
-    if (mCurSockFd != -1) {
-        retVal = ::write(mCurSockFd, msgLenBytes, MSG_HEADER_LEN);
+    if (mSockFd > 0) {
+        retVal = ::write(mSockFd, msgLenBytes, MSG_HEADER_LEN);
 
         if (retVal == MSG_HEADER_LEN) {
-            retVal = ::write(mCurSockFd, data.data(), data.size());
+            retVal = ::write(mSockFd, data.data(), data.size());
         }
     }
 
     return retVal;
 }
 
-
 }  // impl
 
 }  // namespace V2_0
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.h
index 12cfb29..88b852b 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.h
@@ -18,8 +18,9 @@
 #define android_hardware_automotive_vehicle_V2_0_impl_SocketComm_H_
 
 #include <mutex>
+#include <thread>
 #include <vector>
-#include "CommBase.h"
+#include "CommConn.h"
 
 namespace android {
 namespace hardware {
@@ -29,29 +30,60 @@
 
 namespace impl {
 
+class SocketConn;
+
 /**
- * SocketComm opens a socket via adb's TCP port forwarding to enable a Host PC to connect to
- * the VehicleHAL.
+ * SocketComm opens a socket, and listens for connections from clients. Typically the client will be
+ * adb's TCP port-forwarding to enable a host PC to connect to the VehicleHAL.
  */
-class SocketComm : public CommBase {
-public:
-    SocketComm();
+class SocketComm {
+   public:
+    SocketComm(MessageProcessor* messageProcessor);
     virtual ~SocketComm();
 
+    void start();
+    void stop();
+
     /**
-     * Creates a connection to the other side.
+     * Serialized and send the given message to all connected clients.
+     */
+    void sendMessage(emulator::EmulatorMessage const& msg);
+
+   private:
+    int mListenFd;
+    std::unique_ptr<std::thread> mListenThread;
+    std::vector<std::unique_ptr<SocketConn>> mOpenConnections;
+    MessageProcessor* mMessageProcessor;
+    std::mutex mMutex;
+
+    /**
+     * Opens the socket and begins listening.
+     *
+     * @return bool Returns true on success.
+     */
+    bool listen();
+
+    /**
+     * Blocks and waits for a connection from a client, returns a new SocketConn with the connection
+     * or null, if the connection has been closed.
      *
      * @return int Returns fd or socket number if connection is successful.
      *              Otherwise, returns -1 if no connection is availble.
      */
-    int connect() override;
+    SocketConn* accept();
 
-    /**
-     * Opens a socket and begins listening.
-     *
-     * @return int Returns 0 on success.
-     */
-    int open() override;
+    void listenThread();
+
+    void removeClosedConnections();
+};
+
+/**
+ * SocketConn represents a single connection to a client.
+ */
+class SocketConn : public CommConn {
+   public:
+    SocketConn(MessageProcessor* messageProcessor, int sfd);
+    virtual ~SocketConn() = default;
 
     /**
      * Blocking call to read data from the connection.
@@ -75,10 +107,9 @@
      */
     int write(const std::vector<uint8_t>& data) override;
 
-private:
-    int mCurSockFd;
-    std::atomic<int> mExit;
-    std::mutex mMutex;
+    inline bool isOpen() override { return mSockFd > 0; }
+
+   private:
     int mSockFd;
 };
 
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.cpp
index bf7be09..356a6b9 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.cpp
@@ -16,9 +16,10 @@
 #define LOG_TAG "VehicleEmulator_v2_0"
 #include <android/log.h>
 
-#include <algorithm>
 #include <android-base/properties.h>
+#include <log/log.h>
 #include <utils/SystemClock.h>
+#include <algorithm>
 
 #include <vhal_v2_0/VehicleUtils.h>
 
@@ -35,32 +36,45 @@
 
 namespace impl {
 
-std::unique_ptr<CommBase> CommFactory::create() {
-    bool isEmulator = android::base::GetBoolProperty("ro.kernel.qemu", false);
+VehicleEmulator::VehicleEmulator(EmulatedVehicleHalIface* hal) : mHal{hal} {
+    mHal->registerEmulator(this);
 
-    if (isEmulator) {
-        return std::make_unique<PipeComm>();
-    } else {
-        return std::make_unique<SocketComm>();
+    ALOGI("Starting SocketComm");
+    mSocketComm = std::make_unique<SocketComm>(this);
+    mSocketComm->start();
+
+    if (android::base::GetBoolProperty("ro.kernel.qemu", false)) {
+        ALOGI("Starting PipeComm");
+        mPipeComm = std::make_unique<PipeComm>(this);
+        mPipeComm->start();
     }
 }
 
 VehicleEmulator::~VehicleEmulator() {
-    mExit = true;   // Notify thread to finish and wait for it to terminate.
-    mComm->stop();  // Close emulator socket if it is open.
-    if (mThread.joinable()) mThread.join();
+    mSocketComm->stop();
+    if (mPipeComm) {
+        mPipeComm->stop();
+    }
 }
 
+/**
+ * This is called by the HAL when a property changes. We need to notify our clients that it has
+ * changed.
+ */
 void VehicleEmulator::doSetValueFromClient(const VehiclePropValue& propValue) {
     emulator::EmulatorMessage msg;
     emulator::VehiclePropValue *val = msg.add_value();
     populateProtoVehiclePropValue(val, &propValue);
     msg.set_status(emulator::RESULT_OK);
     msg.set_msg_type(emulator::SET_PROPERTY_ASYNC);
-    txMsg(msg);
+
+    mSocketComm->sendMessage(msg);
+    if (mPipeComm) {
+        mPipeComm->sendMessage(msg);
+    }
 }
 
-void VehicleEmulator::doGetConfig(VehicleEmulator::EmulatorMessage& rxMsg,
+void VehicleEmulator::doGetConfig(VehicleEmulator::EmulatorMessage const& rxMsg,
                                   VehicleEmulator::EmulatorMessage& respMsg) {
     std::vector<VehiclePropConfig> configs = mHal->listProperties();
     emulator::VehiclePropGet getProp = rxMsg.prop(0);
@@ -79,7 +93,7 @@
     }
 }
 
-void VehicleEmulator::doGetConfigAll(VehicleEmulator::EmulatorMessage& /* rxMsg */,
+void VehicleEmulator::doGetConfigAll(VehicleEmulator::EmulatorMessage const& /* rxMsg */,
                                      VehicleEmulator::EmulatorMessage& respMsg) {
     std::vector<VehiclePropConfig> configs = mHal->listProperties();
 
@@ -92,8 +106,8 @@
     }
 }
 
-void VehicleEmulator::doGetProperty(VehicleEmulator::EmulatorMessage& rxMsg,
-                                    VehicleEmulator::EmulatorMessage& respMsg)  {
+void VehicleEmulator::doGetProperty(VehicleEmulator::EmulatorMessage const& rxMsg,
+                                    VehicleEmulator::EmulatorMessage& respMsg) {
     int32_t areaId = 0;
     emulator::VehiclePropGet getProp = rxMsg.prop(0);
     int32_t propId = getProp.prop();
@@ -119,8 +133,8 @@
     respMsg.set_status(status);
 }
 
-void VehicleEmulator::doGetPropertyAll(VehicleEmulator::EmulatorMessage& /* rxMsg */,
-                                       VehicleEmulator::EmulatorMessage& respMsg)  {
+void VehicleEmulator::doGetPropertyAll(VehicleEmulator::EmulatorMessage const& /* rxMsg */,
+                                       VehicleEmulator::EmulatorMessage& respMsg) {
     respMsg.set_msg_type(emulator::GET_PROPERTY_ALL_RESP);
     respMsg.set_status(emulator::RESULT_OK);
 
@@ -132,7 +146,7 @@
     }
 }
 
-void VehicleEmulator::doSetProperty(VehicleEmulator::EmulatorMessage& rxMsg,
+void VehicleEmulator::doSetProperty(VehicleEmulator::EmulatorMessage const& rxMsg,
                                     VehicleEmulator::EmulatorMessage& respMsg) {
     emulator::VehiclePropValue protoVal = rxMsg.value(0);
     VehiclePropValue val = {
@@ -173,58 +187,28 @@
     respMsg.set_status(halRes ? emulator::RESULT_OK : emulator::ERROR_INVALID_PROPERTY);
 }
 
-void VehicleEmulator::txMsg(emulator::EmulatorMessage& txMsg) {
-    int numBytes = txMsg.ByteSize();
-    std::vector<uint8_t> msg(static_cast<size_t>(numBytes));
-
-    if (!txMsg.SerializeToArray(msg.data(), static_cast<int32_t>(msg.size()))) {
-        ALOGE("%s: SerializeToString failed!", __func__);
-        return;
-    }
-
-    if (mExit) {
-        ALOGW("%s: unable to transmit a message, connection closed", __func__);
-        return;
-    }
-
-    // Send the message
-    int retVal = mComm->write(msg);
-    if (retVal < 0) {
-        ALOGE("%s: Failed to tx message: retval=%d, errno=%d", __func__, retVal, errno);
-    }
-}
-
-void VehicleEmulator::parseRxProtoBuf(std::vector<uint8_t>& msg) {
-    emulator::EmulatorMessage rxMsg;
-    emulator::EmulatorMessage respMsg;
-
-    if (rxMsg.ParseFromArray(msg.data(), static_cast<int32_t>(msg.size()))) {
-        switch (rxMsg.msg_type()) {
-            case emulator::GET_CONFIG_CMD:
-                doGetConfig(rxMsg, respMsg);
-                break;
-            case emulator::GET_CONFIG_ALL_CMD:
-                doGetConfigAll(rxMsg, respMsg);
-                break;
-            case emulator::GET_PROPERTY_CMD:
-                doGetProperty(rxMsg, respMsg);
-                break;
-            case emulator::GET_PROPERTY_ALL_CMD:
-                doGetPropertyAll(rxMsg, respMsg);
-                break;
-            case emulator::SET_PROPERTY_CMD:
-                doSetProperty(rxMsg, respMsg);
-                break;
-            default:
-                ALOGW("%s: Unknown message received, type = %d", __func__, rxMsg.msg_type());
-                respMsg.set_status(emulator::ERROR_UNIMPLEMENTED_CMD);
-                break;
-        }
-
-        // Send the reply
-        txMsg(respMsg);
-    } else {
-        ALOGE("%s: ParseFromString() failed. msgSize=%d", __func__, static_cast<int>(msg.size()));
+void VehicleEmulator::processMessage(emulator::EmulatorMessage const& rxMsg,
+                                     emulator::EmulatorMessage& respMsg) {
+    switch (rxMsg.msg_type()) {
+        case emulator::GET_CONFIG_CMD:
+            doGetConfig(rxMsg, respMsg);
+            break;
+        case emulator::GET_CONFIG_ALL_CMD:
+            doGetConfigAll(rxMsg, respMsg);
+            break;
+        case emulator::GET_PROPERTY_CMD:
+            doGetProperty(rxMsg, respMsg);
+            break;
+        case emulator::GET_PROPERTY_ALL_CMD:
+            doGetPropertyAll(rxMsg, respMsg);
+            break;
+        case emulator::SET_PROPERTY_CMD:
+            doSetProperty(rxMsg, respMsg);
+            break;
+        default:
+            ALOGW("%s: Unknown message received, type = %d", __func__, rxMsg.msg_type());
+            respMsg.set_status(emulator::ERROR_UNIMPLEMENTED_CMD);
+            break;
     }
 }
 
@@ -316,40 +300,6 @@
     }
 }
 
-void VehicleEmulator::rxMsg() {
-    while (!mExit) {
-        std::vector<uint8_t> msg = mComm->read();
-
-        if (msg.size() > 0) {
-            // Received a message.
-            parseRxProtoBuf(msg);
-        } else {
-            // This happens when connection is closed
-            ALOGD("%s: msgSize=%zu", __func__, msg.size());
-            break;
-        }
-    }
-}
-
-void VehicleEmulator::rxThread() {
-    if (mExit) return;
-
-    int retVal = mComm->open();
-    if (retVal != 0) mExit = true;
-
-    // Comms are properly opened
-    while (!mExit) {
-        retVal = mComm->connect();
-
-        if (retVal >= 0) {
-            rxMsg();
-        }
-
-        // Check every 100ms for a new connection
-        std::this_thread::sleep_for(std::chrono::milliseconds(100));
-    }
-}
-
 }  // impl
 
 }  // namespace V2_0
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.h
index 1a8cfe2..58e387a 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.h
@@ -24,7 +24,9 @@
 
 #include "vhal_v2_0/VehicleHal.h"
 
-#include "CommBase.h"
+#include "CommConn.h"
+#include "PipeComm.h"
+#include "SocketComm.h"
 #include "VehicleHalProto.pb.h"
 
 namespace android {
@@ -61,48 +63,36 @@
     VehicleEmulator* mEmulator;
 };
 
-struct CommFactory {
-    static std::unique_ptr<CommBase> create();
-};
-
 /**
  * Emulates vehicle by providing controlling interface from host side either through ADB or Pipe.
  */
-class VehicleEmulator {
-public:
-    VehicleEmulator(EmulatedVehicleHalIface* hal,
-                    std::unique_ptr<CommBase> comm = CommFactory::create())
-            : mHal { hal },
-              mComm(comm.release()),
-              mThread { &VehicleEmulator::rxThread, this} {
-        mHal->registerEmulator(this);
-    }
+class VehicleEmulator : public MessageProcessor {
+   public:
+    VehicleEmulator(EmulatedVehicleHalIface* hal);
     virtual ~VehicleEmulator();
 
     void doSetValueFromClient(const VehiclePropValue& propValue);
+    void processMessage(emulator::EmulatorMessage const& rxMsg,
+                        emulator::EmulatorMessage& respMsg) override;
 
-private:
+   private:
+    friend class ConnectionThread;
     using EmulatorMessage = emulator::EmulatorMessage;
 
-    void doGetConfig(EmulatorMessage& rxMsg, EmulatorMessage& respMsg);
-    void doGetConfigAll(EmulatorMessage& rxMsg, EmulatorMessage& respMsg);
-    void doGetProperty(EmulatorMessage& rxMsg, EmulatorMessage& respMsg);
-    void doGetPropertyAll(EmulatorMessage& rxMsg, EmulatorMessage& respMsg);
-    void doSetProperty(EmulatorMessage& rxMsg, EmulatorMessage& respMsg);
-    void txMsg(emulator::EmulatorMessage& txMsg);
-    void parseRxProtoBuf(std::vector<uint8_t>& msg);
+    void doGetConfig(EmulatorMessage const& rxMsg, EmulatorMessage& respMsg);
+    void doGetConfigAll(EmulatorMessage const& rxMsg, EmulatorMessage& respMsg);
+    void doGetProperty(EmulatorMessage const& rxMsg, EmulatorMessage& respMsg);
+    void doGetPropertyAll(EmulatorMessage const& rxMsg, EmulatorMessage& respMsg);
+    void doSetProperty(EmulatorMessage const& rxMsg, EmulatorMessage& respMsg);
     void populateProtoVehicleConfig(emulator::VehiclePropConfig* protoCfg,
                                     const VehiclePropConfig& cfg);
     void populateProtoVehiclePropValue(emulator::VehiclePropValue* protoVal,
                                        const VehiclePropValue* val);
-    void rxMsg();
-    void rxThread();
 
 private:
-    std::atomic<bool> mExit { false };
     EmulatedVehicleHalIface* mHal;
-    std::unique_ptr<CommBase> mComm;
-    std::thread mThread;
+    std::unique_ptr<SocketComm> mSocketComm;
+    std::unique_ptr<PipeComm> mPipeComm;
 };
 
 }  // impl
diff --git a/automotive/vehicle/2.0/types.hal b/automotive/vehicle/2.0/types.hal
index 57179df..3efaaec 100644
--- a/automotive/vehicle/2.0/types.hal
+++ b/automotive/vehicle/2.0/types.hal
@@ -131,6 +131,9 @@
  * When a property's status field is not set to AVAILABLE:
  *  - IVehicle#set may return StatusCode::NOT_AVAILABLE.
  *  - IVehicle#get is not guaranteed to work.
+ *
+ * Properties set to values out of range must be ignored and no action taken
+ * in response to such ill formed requests.
  */
 enum VehicleProperty : int32_t {
 
@@ -243,7 +246,7 @@
      * Fuel door location
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
-     * @data_enum FuelDoorLocationType
+     * @data_enum PortLocationType
      * @access VehiclePropertyAccess:READ
      */
     INFO_FUEL_DOOR_LOCATION = (
@@ -267,6 +270,7 @@
 
     /**
      * Driver's seat location
+     * VHAL implementations must ignore the areaId. Use VehicleArea:GLOBAL.
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
      * @data_enum VehicleAreaSeat
@@ -278,7 +282,6 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-
     /**
      * Current odometer value of the vehicle
      *
@@ -306,6 +309,37 @@
         | VehicleArea:GLOBAL),
 
     /**
+     * Speed of the vehicle for displays
+     *
+     * Some cars display a slightly slower speed than the actual speed.  This is
+     * usually displayed on the speedometer.
+     *
+     * @change_mode VehiclePropertyChangeMode:CONTINUOUS
+     * @access VehiclePropertyAccess:READ
+     * @unit VehicleUnit:METER_PER_SEC
+     */
+    PERF_VEHICLE_SPEED_DISPLAY = (
+        0x0208
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:FLOAT
+        | VehicleArea:GLOBAL),
+
+    /**
+     * Steering angle of the vehicle
+     *
+     * Angle is in degrees.  Left is negative.
+     *
+     * @change_mode VehiclePropertyChangeMode:CONTINUOUS
+     * @access VehiclePropertyAccess:READ
+     * @unit VehicleUnit:DEGREES
+     */
+    PERF_STEERING_ANGLE = (
+        0x0209
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:FLOAT
+        | VehicleArea:GLOBAL),
+
+    /**
      * Temperature of engine coolant
      *
      * @change_mode VehiclePropertyChangeMode:CONTINUOUS
@@ -587,7 +621,13 @@
      *
      * This property corresponds to the low fuel warning on the dashboard.
      * Once FUEL_LEVEL_LOW is set, it should not be cleared until more fuel is
-     * added to the vehicle.
+     * added to the vehicle.  This property may take into account all fuel
+     * sources for a vehicle - for example:
+     *
+     *   For a gas powered vehicle, this property is based soley on gas level.
+     *   For a battery powered vehicle, this property is based solely on battery level.
+     *   For a hybrid vehicle, this property may be based on the combination of gas and battery
+     *      levels, at the OEM's discretion.
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
      * @access VehiclePropertyAccess:READ
@@ -1071,6 +1111,91 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
+   /**
+     * Distance units for display
+     *
+     * Indicates which units the car is using to display distances to the user. Eg. Mile, Meter
+     * Kilometer.
+     *
+     * Distance units are defined in VehicleUnit.
+     * VehiclePropConfig.configArray is used to indicate the supported distance display units.
+     * For example: configArray[0] = 0x21 // METER
+     *              configArray[1] = 0x23 // KILOMETER
+     *              configArray[2] = 0x24 // MILE
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     * @data_enum VehicleUnit
+     */
+    DISTANCE_DISPLAY_UNITS = (
+        0x0600
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:GLOBAL),
+
+    /**
+     * Fuel volume units for display
+     *
+     * Indicates which units the car is using to display fuel volume to the user. Eg. Liter or
+     * Gallon.
+     *
+     * Distance units are defined in VehicleUnit.
+     * VehiclePropConfig.configArray is used to indicate the supported fuel volume display units.
+     * Volume units are defined in VehicleUnit.
+     * For example: configArray[0] = 0x41 // LITER
+     *              configArray[1] = 0x42 // GALLON
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     * @data_enum VehicleUnit
+     */
+    FUEL_VOLUME_DISPLAY_UNITS = (
+        0x0601
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:GLOBAL),
+
+    /**
+     * Tire pressure units for display
+     *
+     * Indicates which units the car is using to display tire pressure to the user. Eg. PSI, Bar or
+     * Kilopascal.
+     *
+     * Distance units are defined in VehicleUnit.
+     * VehiclePropConfig.configArray is used to indicate the supported pressure display units.
+     * Pressure units are defined in VehicleUnit.
+     * For example: configArray[0] = 0x70 // KILOPASCAL
+     *              configArray[1] = 0x71 // PSI
+     *              configArray[2] = 0x72 // BAR
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     * @data_enum VehicleUnit
+     */
+    TIRE_PRESSURE_DISPLAY_UNITS = (
+        0x0602
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:GLOBAL),
+
+    /**
+     * EV battery units for display
+     *
+     * Indicates which units the car is using to display EV battery information to the user. Eg.
+     * watt-hours(Wh), kilowatt-hours(kWh) or ampere-hours(Ah).
+     *
+     * Distance units are defined in VehicleUnit.
+     * VehiclePropConfig.configArray is used to indicate the supported electrical energy units.
+     * Electrical energy units are defined in VehicleUnit.
+     * For example: configArray[0] = 0x60 // watt-hours
+     *              configArray[1] = 0x64 // ampere-hours
+     *              configArray[2] = 0x65 // kilowatt-hours
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     * @data_enum VehicleUnit
+     */
+    EV_BATTERY_DISPLAY_UNITS = (
+        0x0603
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:GLOBAL),
 
     /**
      * Outside temperature
@@ -1088,7 +1213,7 @@
     /**
      * Property to control power state of application processor
      *
-     * It is assumed that AP's power state is controller by separate power
+     * It is assumed that AP's power state is controlled by a separate power
      * controller.
      *
      * For configuration information, VehiclePropConfig.configArray can have bit flag combining
@@ -1099,7 +1224,7 @@
      *                    0 if not used.
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
-     * @access VEHICLE_PROP_ACCESS_READ
+     * @access VehiclePropertyAccess:READ
      */
     AP_POWER_STATE_REQ = (
         0x0A00
@@ -1118,7 +1243,7 @@
 
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
-     * @access VEHICLE_PROP_ACCESS_WRITE
+     * @access VehiclePropertyAccess:WRITE
      */
     AP_POWER_STATE_REPORT = (
         0x0A01
@@ -1738,6 +1863,22 @@
         | VehicleArea:SEAT),
 
     /**
+     * Seat Occupancy
+     *
+     * Indicates whether a particular seat is occupied or not, to the best of the car's ability
+     * to determine. Valid values are from the VehicleSeatOccupancyState enum.
+     *
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ
+     * @data_enum VehicleSeatOccupancyState
+     */
+    SEAT_OCCUPANCY = (
+        0x0BB0
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:SEAT),
+
+    /**
      * Window Position
      *
      * Min = window up / closed
@@ -2072,6 +2213,83 @@
         | VehiclePropertyGroup:SYSTEM
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
+
+    /**
+     * Cabin lights
+     *
+     * Return current status of cabin lights.
+     *
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ
+     * @data_enum VehicleLightState
+     */
+    CABIN_LIGHTS_STATE = (
+        0x0F01
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:GLOBAL),
+
+    /**
+     * Cabin lights switch
+     *
+     * The position of the physical switch which controls the cabin lights.
+     * This might be different than the CABIN_LIGHTS_STATE if the lights are on because a door
+     * is open or because of a voice command.
+     * For example, while the switch is in the "off" or "automatic" position.
+     *
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     * @data_enum VehicleLightSwitch
+     */
+    CABIN_LIGHTS_SWITCH = (
+        0x0F02
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:GLOBAL),
+
+    /**
+     * Reading lights
+     *
+     * Return current status of reading lights.
+     *
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ
+     * @data_enum VehicleLightState
+     */
+    READING_LIGHTS_STATE = (
+        0x0F03
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:SEAT),
+
+    /**
+     * Reading lights switch
+     *
+     * The position of the physical switch which controls the reading lights.
+     * This might be different than the READING_LIGHTS_STATE if the lights are on because a door
+     * is open or because of a voice command.
+     * For example, while the switch is in the "off" or "automatic" position.
+     *
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     * @data_enum VehicleLightSwitch
+     */
+    READING_LIGHTS_SWITCH = (
+        0x0F04
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:INT32
+        | VehicleArea:SEAT),
+
+};
+
+/**
+ * Used by seat occupancy to enumerate the current occupancy state of the seat.
+ */
+enum  VehicleSeatOccupancyState : int32_t {
+
+    UNKNOWN = 0,
+    VACANT = 1,
+    OCCUPIED = 2
 };
 
 /**
@@ -2230,17 +2448,8 @@
 };
 
 enum VehicleApPowerStateReq : int32_t {
-    /** vehicle HAL will never publish this state to AP */
-    OFF = 0,
-
-    /** vehicle HAL will never publish this state to AP */
-    DEEP_SLEEP = 1,
-
-    /** AP is on but display must be off. */
-    ON_DISP_OFF = 2,
-
-    /** AP is on with display on. This state allows full user interaction. */
-    ON_FULL = 3,
+    /** Transition Android from WAIT_FOR_VHAL to ON state */
+    ON = 0,
 
     /**
      * The power controller has requested AP to shutdown. AP can either enter
@@ -2250,8 +2459,16 @@
      * system.
      *
      * int32Values[1] : one of enum_vehicle_ap_power_state_shutdown_param_type
+     *
+     * SHUTDOWN_PRPARE may be requested from either WAIT_FOR_VHAL or ON states.
      */
-    SHUTDOWN_PREPARE = 4,
+    SHUTDOWN_PREPARE = 1,
+
+    /** Cancel the shutdown and transition from SHUTDOWN_PREPARE to WAIT_FOR_VHAL state */
+    CANCEL_SHUTDOWN = 2,
+
+    /** VHAL is finished with shutdown procedures and ready for Android to suspend/shutdown */
+    FINISHED = 3,
 };
 
 /**
@@ -2277,26 +2494,30 @@
 
 enum VehicleApPowerStateReport : int32_t {
     /**
-     * AP has finished boot up, and can start shutdown if requested by power
-     * controller.
+     * Device has booted, CarService has initialized and is ready to accept commands from VHAL.
+     * Device starts in WAIT_FOR_VHAL state.  The user is not logged in, and vendor apps/services
+     * are expected to control the display and audio.
      */
-    BOOT_COMPLETE = 0x1,
+    WAIT_FOR_VHAL = 0x1,
 
     /**
-     * AP is entering deep sleep state. How this state is implemented may vary
-     * depending on each H/W, but AP's power must be kept in this state.
+     * AP is ready to suspend and has entered WAIT_FOR_FINISHED state.
+     *
+     * int32Values[1]: Time to turn on AP in secs. Power controller may turn on
+     *                 AP after specified time so that AP can run tasks like
+     *                 update. If it is set to 0, there is no wake up, and power
+     *                 controller may not necessarily support wake-up.
      */
     DEEP_SLEEP_ENTRY = 0x2,
 
     /**
-     * AP is exiting from deep sleep state, and is in
-     * VehicleApPowerState#SHUTDOWN_PREPARE state.
-     * The power controller may change state to other ON states based on the
-     * current state.
+     * AP is exiting from deep sleep state, and is in WAIT_FOR_VHAL state.
      */
     DEEP_SLEEP_EXIT = 0x3,
 
     /**
+     * AP remains in SHUTDOWN_PREPARE state as idle and cleanup tasks execute.
+     *
      * int32Values[1]: Time to postpone shutdown in ms. Maximum value can be
      *                 5000 ms.
      *                 If AP needs more time, it will send another POSTPONE
@@ -2305,63 +2526,31 @@
     SHUTDOWN_POSTPONE = 0x4,
 
     /**
-     * AP is starting shutting down. When system completes shutdown, everything
-     * will stop in AP as kernel will stop all other contexts. It is
-     * responsibility of vehicle HAL or lower level to synchronize that state
-     * with external power controller. As an example, some kind of ping
-     * with timeout in power controller can be a solution.
+     * AP is ready to shutdown and has entered WAIT_FOR_FINISHED state.
      *
      * int32Values[1]: Time to turn on AP in secs. Power controller may turn on
      *                 AP after specified time so that AP can run tasks like
      *                 update. If it is set to 0, there is no wake up, and power
-     *                 controller may not necessarily support wake-up. If power
-     *                 controller turns on AP due to timer, it must start with
-     *                 VehicleApPowerState#ON_DISP_OFF state, and after
-     *                 receiving VehicleApPowerSetState#BOOT_COMPLETE, it shall
-     *                 do state transition to
-     *                 VehicleApPowerState#SHUTDOWN_PREPARE.
+     *                 controller may not necessarily support wake-up.
      */
     SHUTDOWN_START = 0x5,
 
     /**
-     * User has requested to turn off headunit's display, which is detected in
-     * android side.
-     * The power controller may change the power state to
-     * VehicleApPowerState#ON_DISP_OFF.
+     * AP has transitioned from WAIT_FOR_VHAL state to ON.
      */
-    DISPLAY_OFF = 0x6,
+    ON = 0x6,
 
     /**
-     * User has requested to turn on headunit's display, most probably from power
-     * key input which is attached to headunit. The power controller may change
-     * the power state to VehicleApPowerState#ON_FULL.
+     * AP has transitions to SHUTDOWN_PREPARE state.  In this state, Garage Mode will execute idle
+     * tasks, and other services that have registered for this state transition may execute
+     * cleanup activities.
      */
-    DISPLAY_ON = 0x7,
-};
-
-/**
- * Enum to represent bootup reason.
- */
-enum VehicleApPowerBootupReason : int32_t {
-    /**
-     * Power on due to user's pressing of power key or rotating of ignition
-     * switch.
-     */
-    USER_POWER_ON = 0,
+    SHUTDOWN_PREPARE = 0x7,
 
     /**
-     * Automatic power on triggered by door unlock or any other kind of automatic
-     * user detection.
+     * AP has transitioned from SHUTDOWN_PREPARE state to WAIT_FOR_VHAL.
      */
-    USER_UNLOCK = 1,
-
-    /**
-     * Automatic power on triggered by timer. This only happens when AP has asked
-     * wake-up after
-     * certain time through time specified in
-     * VehicleApPowerSetState#SHUTDOWN_START.
-     */
-    TIMER = 2,
+    SHUTDOWN_CANCELLED = 0x8,
 };
 
 enum VehicleHwKeyInputAction : int32_t {
@@ -2392,20 +2581,29 @@
     MILLIMETER     = 0x20,
     METER          = 0x21,
     KILOMETER      = 0x23,
+    MILE           = 0x24,
     CELSIUS        = 0x30,
     FAHRENHEIT     = 0x31,
     KELVIN         = 0x32,
     MILLILITER     = 0x40,
+    LITER          = 0x41,
+    GALLON         = 0x42,
     NANO_SECS      = 0x50,
     SECS           = 0x53,
     YEAR           = 0x59,
-    KILOPASCAL     = 0x70,
 
     // Electrical Units
     WATT_HOUR      = 0x60,
     MILLIAMPERE    = 0x61,
     MILLIVOLT      = 0x62,
     MILLIWATTS     = 0x63,
+    AMPERE_HOURS   = 0x64,
+    KILOWATT_HOUR  = 0x65,
+
+    KILOPASCAL     = 0x70,
+    PSI            = 0x71,
+    BAR            = 0x72,
+    DEGREES        = 0x80,
 };
 
 /**
diff --git a/biometrics/face/1.0/Android.bp b/biometrics/face/1.0/Android.bp
new file mode 100644
index 0000000..0f8c6e6
--- /dev/null
+++ b/biometrics/face/1.0/Android.bp
@@ -0,0 +1,28 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.biometrics.face@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IBiometricsFace.hal",
+        "IBiometricsFaceClientCallback.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "FaceAcquiredInfo",
+        "FaceError",
+        "Feature",
+        "OptionalBool",
+        "OptionalUint64",
+        "Status",
+        "UserHandle",
+    ],
+    gen_java: true,
+}
+
diff --git a/biometrics/face/1.0/IBiometricsFace.hal b/biometrics/face/1.0/IBiometricsFace.hal
new file mode 100644
index 0000000..0499c5d
--- /dev/null
+++ b/biometrics/face/1.0/IBiometricsFace.hal
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.biometrics.face@1.0;
+
+import IBiometricsFaceClientCallback;
+
+/**
+ * The HAL interface for biometric face authentication.
+ */
+interface IBiometricsFace {
+
+    /**
+     * Sets the current client callback.
+     *
+     * Registers a user function that must receive notifications from the HAL.
+     * There is usually only one client (FaceService). This call must block
+     * if the HAL state machine is in busy state until the HAL leaves the
+     * busy state.
+     *
+     * All callback methods pass a deviceId to differentiate callback
+     * invocations in the case where multiple sensors exist.
+     *
+     * @param clientCallback The client defined callback to register.
+     * @return result, with its "value" parameter representing a "deviceId",
+     *     which must be unique for a given sensor.
+     */
+    @callflow(next={"setActiveUser"})
+    @entry
+    setCallback(IBiometricsFaceClientCallback clientCallback)
+        generates (OptionalUint64 result);
+
+    /**
+     * Sets the active user, which all subsequent HAL operations are applied to.
+     *
+     * HAL service implementors must ensure that operations are restricted to
+     * the given user. Clients must not call any part of this interface, except
+     * for setCallback(), without first having set an active user. The
+     * implementation is responsible for cancelling the current operation and
+     * returning to the idle state. Calling this method with the same userId
+     * should have no effect on the state machine.
+     *
+     * @param userId A non-negative user identifier that must be unique and
+     *     persistent for a given user.
+     * @param storePath filesystem path to the template storage directory.
+     */
+    @callflow(next={"authenticate", "generateChallenge", "enumerate", "remove"})
+    setActiveUser(int32_t userId, string storePath) generates (Status status);
+
+    /**
+     * Begins a secure transaction request, e.g. enrollment.
+     *
+     * Generates a unique and cryptographically secure random token used to
+     * indicate the start of a secure transaction. generateChallenge() and
+     * revokeChallenge() specify a pin/pattern/password cleared time window where
+     * the secure transaction is allowed.
+     *
+     * generateChallenge() generates a challenge which must then be wrapped by the
+     * gatekeeper after verifying a successful strong authentication attempt,
+     * which generates a Hardware Authentication Token. The challenge prevents
+     * spoofing and replay attacks and ensures that we only update a user’s face
+     * template if the operation was preceded by some kind of strong credential
+     * confirmation (e.g. device password).
+     *
+     * @param challengeTimeoutSec A timeout in seconds, after which the driver
+     *     must invalidate the challenge. This is to prevent bugs or crashes in
+     *     the system from leaving a challenge enabled indefinitely.
+     * @return result, with its "value" parameter representing a "challenge": a
+     *     unique and cryptographically secure random token.
+     */
+    @callflow(next={"enroll", "revokeChallenge", "setFeatureDisabled"})
+    generateChallenge(uint32_t challengeTimeoutSec)
+        generates (OptionalUint64 result);
+
+    /**
+     * Enrolls a user's face.
+     *
+     * Note that this interface permits implementations where multiple faces can
+     * be enrolled for a single user. However, allowing multiple faces to be
+     * enrolled can be a severe security vulnerability and hence, most
+     * implementations must ensure that only a single face be enrolled at a
+     * given time. Multi-enrollment must only be used where there is a clear
+     * necessity for a shared use case, e.g. TVs or cars.
+     *
+     * Note that the Hardware Authentication Token must still be valid after
+     * this call, and must be explicitly invalidated by a call to
+     * revokeChallenge(). This allows clients to immediately reattempt
+     * enrollment (for example, if a user wasn’t satisfied with their enrollment)
+     * without having to go through another strong authentication flow.
+     *
+     * This method triggers the IBiometricsFaceClientCallback#onEnrollResult()
+     * method.
+     *
+     * @param hat A valid Hardware Authentication Token, generated as a result
+     *     of a generateChallenge() challenge being wrapped by the gatekeeper
+     *     after a sucessful strong authentication request.
+     * @param timeoutSec A timeout in seconds, after which this enrollment
+     *     attempt is cancelled. Note that the client still needs to
+     *     call revokeChallenge() to terminate the enrollment session.
+     * @param disabledFeatures A list of features to be disabled during
+     *     enrollment. Note that all features are enabled by default.
+     * @return status The status of this method call.
+     */
+    @callflow(next={"cancel", "enroll", "revokeChallenge", "remove"})
+    enroll(vec<uint8_t> hat, uint32_t timeoutSec, vec<Feature> disabledFeatures)
+        generates (Status status);
+
+    /**
+     * Finishes the secure transaction by invalidating the challenge generated
+     * by generateChallenge().
+     *
+     * Clients must call this method once enrollment is complete, and the user's
+     * face template no longer needs to be updated.
+     *
+     * @return status The status of this method call.
+     */
+    @callflow(next={"authenticate", "setActiveUser", "enumerate", "remove"})
+    revokeChallenge() generates (Status status);
+
+    /**
+     * Requires all subsequent enroll/authenticate calls to use the feature.
+     * This method does not affect enroll, which has its own feature list.
+     *
+     * Changes the state of previous enrollment setting. Because this may
+     * decrease security, the user must enter their password before this method
+     * is invoked (see @param HAT). The driver must verify the HAT before
+     * changing any feature state.
+     * Note: In some cases it may not be possible to change the state of this
+     * flag without re-enrolling. For example, if the user didn't provide
+     * attention during the original enrollment. This flag reflects the same
+     * persistent state as the one passed to enroll().
+     *
+     * @param feature The feature to be enabled or disabled.
+     * @param enabled True to enable the feature, false to disable.
+     * @param hat A valid Hardware Authentication Token, generated as a result
+     *     of getChallenge().
+     * @return status The status of this method call.
+     */
+    setFeature(Feature feature, bool enabled, vec<uint8_t> hat)
+        generates(Status status);
+
+    /**
+     * Retrieves the current state of the feature.
+     *
+     * @return enabled True if the feature is enabled, false if disabled.
+     */
+    getFeature(Feature feature) generates (bool enabled);
+
+    /**
+     * Returns an identifier associated with the current face set.
+     *
+     * The authenticator ID must change whenever a new face is enrolled. The
+     * authenticator ID must not be changed when a face is deleted. The
+     * authenticator ID must be an entropy-encoded random number which all
+     * current templates are tied to. The authenticator ID must be immutable
+     * outside of an active enrollment window to prevent replay attacks.
+     *
+     * @return result, with its value parameter representing an
+     *     "authenticatorId": an identifier associated to the user's current
+     *     face enrollment.
+     */
+    @callflow(next={"authenticate"})
+    getAuthenticatorId() generates (OptionalUint64 result);
+
+    /**
+     * Cancels a pending enrollment or authentication request.
+     *
+     * @return status The status of this method call.
+     */
+    @callflow(next={"authenticate", "enroll", "enumerate", "remove",
+        "setActiveUser"})
+    cancel() generates (Status status);
+
+    /**
+     * Enumerates all face templates associated with the active user.
+     *
+     * The onEnumerate() callback method is invoked once for each face template
+     * found.
+     *
+     * @return status The status of this method call.
+     */
+    @callflow(next={"remove", "enroll", "authenticate", "setActiveUser"})
+    enumerate() generates (Status status);
+
+    /**
+     * Removes a face template or all face templates associated with the active
+     * user.
+     *
+     * This method triggers the IBiometricsFaceClientCallback#onRemoved() method.
+     *
+     * @param faceId The id correpsonding to the face to be removed; or 0 if all
+     *    faces are to be removed.
+     * @return status The status of this method call.
+     */
+    @callflow(next={"enumerate", "authenticate", "cancel", "getAuthenticatorId",
+        "setActiveUser"})
+    remove(uint32_t faceId) generates (Status status);
+
+    /**
+     * Authenticates the active user.
+     *
+     * An optional operationId can be specified as a token from the transaction
+     * being authorized. The hardware may enter a standby state during
+     * authentication, where the device is idle to conserve power while
+     * authenticating, e.g. after 3 seconds without finding a face. See
+     * IBiometricsFace#userActivity() for more info.
+     *
+     * @param operationId A non-zero operation id associated with a crypto
+     * object instance; or 0 if not being used.
+     * @return status The status of this method call.
+     */
+    @callflow(next={"cancel", "generateChallenge", "remove"})
+    authenticate(uint64_t operationId) generates (Status status);
+
+    /**
+     * A hint to the HAL to continue looking for faces.
+     *
+     * This method should only be used when the HAL is in the authenticating
+     * or standby state. Using this method when the HAL is not in one of the
+     * mentioned states must return OPERATION_NOT_SUPPORTED. Calling this
+     * method while the HAL is already authenticating may extend the duration
+     * where it's looking for a face.
+     *
+     * @return status The status of this method call.
+     */
+    userActivity() generates (Status status);
+
+    /**
+     * Reset lockout for the current user.
+     *
+     * @param hat A valid Hardware Authentication Token, generated when the
+     *     user authenticates with Pin/Pattern/Pass. When the Hardware
+     *     Authentication Token is verified, lockout must be reset and
+     *     onLockoutChanged must be called with duration 0.
+     * @return status The status of this method call.
+     */
+    resetLockout(vec<uint8_t> hat) generates (Status status);
+};
diff --git a/biometrics/face/1.0/IBiometricsFaceClientCallback.hal b/biometrics/face/1.0/IBiometricsFaceClientCallback.hal
new file mode 100644
index 0000000..c9dd0e2
--- /dev/null
+++ b/biometrics/face/1.0/IBiometricsFaceClientCallback.hal
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.biometrics.face@1.0;
+
+/**
+ * This callback interface is used by clients to recieve updates from the face
+ * HAL.
+ */
+interface IBiometricsFaceClientCallback {
+
+    /**
+     * A callback invoked when one enrollment step has been completed.
+     *
+     * @param deviceId A unique id associated with the HAL implementation
+     *     service that processed this enrollment step.
+     * @param faceId The id of the face template being enrolled.
+     * @param userId The active user id for the template being enrolled.
+     * @param remaining The number of remaining steps before enrolllment is
+     *     complete or 0 if enrollment has completed successfully.
+     */
+    oneway onEnrollResult(uint64_t deviceId, uint32_t faceId, int32_t userId,
+        uint32_t remaining);
+
+    /**
+     * A callback invoked when a face has been successfully authenticated.
+     *
+     * @param deviceId A unique id associated with the HAL implementation
+     *     service that processed this autentication attempt.
+     * @param faceId The id of the face template that passed the authentication
+     *     challenge.
+     * @param userId The active user id for the authenticated face.
+     * @param token The hardware authentication token associated with this
+     *     authenticate operation.
+     */
+    oneway onAuthenticated(uint64_t deviceId, uint32_t faceId, int32_t userId,
+        vec<uint8_t> token);
+
+    /**
+     * A callback invoked when a face is acquired.
+     *
+     * If a non-critical, recoverable error occurs during an enrollment or
+     * authentication attempt, the HAL implementation must invoke this callback
+     * to allow clients to inform the user that some actionable change must be
+     * made.
+     *
+     * @param deviceId A unique id associated with the HAL implementation
+     *     service that acquired a face.
+     * @param userId The id of the active user associated with the attempted
+     *     face acquisition.
+     * @param acquiredInfo A message about the quality of the acquired image.
+     * @param vendorCode An optional vendor-specific message. This is only valid
+     *     when acquiredInfo == FaceAcquiredInfo.VENDOR. This message is opaque
+     *     to the framework, and vendors must provide code to handle it. For
+     *     example this can be used to guide enrollment in Settings or provide
+     *     a message during authentication that is vendor-specific. The vendor
+     *     is expected to provide help strings to cover all known values.
+     */
+     oneway onAcquired(uint64_t deviceId, int32_t userId,
+         FaceAcquiredInfo acquiredInfo, int32_t vendorCode);
+
+    /**
+     * A callback invoked when an error has occured.
+     *
+     * @param deviceId A unique id associated with the HAL implementation
+     *     service where this error occured.
+     * @param userId The id of the active user when the error occured, or
+     *     UserHandle::NONE if an active user had not been set yet.
+     * @param error A message about the error that occurred.
+     * @param vendorCode An optional, vendor-speicifc error message. Only valid
+     *     when error == FaceError.VENDOR. This message is opaque to the
+     *     framework, and vendors must provide code to handle it. For example,
+     *     this scan be used to show the user an error message specific to the
+     *     device. The vendor is expected to provide error strings to cover
+     *     all known values.
+     */
+    oneway onError(uint64_t deviceId, int32_t userId, FaceError error,
+        int32_t vendorCode);
+
+    /**
+     * A callback invoked when a face template has been removed.
+     *
+     * @param deviceId A unique id associated with the HAL implementation
+     *     service that processed this removal.
+     * @param faceId The id of the face template that was removed.
+     * @param userId The active user id for the removed face template.
+     * @param remaining The number of face templates remaining after this
+     *     removal, or 0 if there are no more.
+     */
+    oneway onRemoved(uint64_t deviceId, uint32_t faceId, int32_t userId,
+        uint32_t remaining);
+
+    /**
+     * A callback invoked to enumerate all current face templates.
+     *
+     * @param deviceId A unique id associated with the HAL implementation
+     *     service that processed this enumeration.
+     * @param faceIds A list of ids of all currently enrolled face templates.
+     * @param userId The active user id for the enumerated face template.
+     */
+    oneway onEnumerate(uint64_t deviceId, vec<uint32_t> faceIds,
+        int32_t userId);
+
+    /**
+     * A callback invoked when the lockout state changes.
+     *
+     * This method must only be invoked when setActiveUser() is called,
+     * when lockout starts, and when lockout ends. When lockout starts,
+     * duration must be greater than 0, and when lockout ends, duration must
+     * be 0. This must be called before calling onError() with parameters
+     * LOCKOUT or LOCKOUT_PERMANENT. If the user is permanently locked out,
+     * the duration must be MAX_UINT64.
+     *
+     * @param duration the remaining lockout duration in milliseconds, or 0
+     *     if the user is not locked out.
+     */
+    oneway onLockoutChanged(uint64_t duration);
+};
diff --git a/biometrics/face/1.0/types.hal b/biometrics/face/1.0/types.hal
new file mode 100644
index 0000000..b5db966
--- /dev/null
+++ b/biometrics/face/1.0/types.hal
@@ -0,0 +1,372 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.biometrics.face@1.0;
+
+/*
+ * In the event setActiveUser is not called, all error messages will return
+ * this userId.
+ */
+enum UserHandle : int32_t {
+    NONE = -1
+};
+
+/**
+ * Status codes returned directly by the HIDL method calls upon critical errors
+ * where the callback cannot be invoked. Most errors should sent through the
+ * onError callback using one of the FaceErrors below.
+ */
+enum Status : uint32_t {
+    /**
+     * The method was invoked successfully.
+     */
+    OK = 0,
+
+    /**
+     * One of the arguments to the method call is invalid.
+     */
+    ILLEGAL_ARGUMENT = 1,
+
+    /**
+     * This face HAL does not support this operation.
+     */
+    OPERATION_NOT_SUPPORTED = 2,
+
+    /**
+     * The HAL has encountered an internal error and cannot complete the request.
+     */
+    INTERNAL_ERROR = 3,
+
+    /**
+     * The operation could not be completed because there are no enrolled
+     * templates.
+     */
+    NOT_ENROLLED = 4
+};
+
+enum Feature : uint32_t {
+    /**
+     * Require the user to look at the device during enrollment and
+     * authentication. Note this is to accommodate people who have limited
+     * vision. Must be enabled by default.
+     */
+    REQUIRE_ATTENTION = 1,
+
+    /**
+     * Require a diverse set of poses during enrollment. Note this is to
+     * accommodate people with limited mobility. Must be enabled by default.
+     */
+    REQUIRE_DIVERSITY = 2
+};
+
+/**
+ * Face errors represent events that can't be immediately recovered by user
+ * intervention. These are returned in the onError callback.
+ *
+ * Upon receiving a face error, clients must terminate the current operation and
+ * notify the user where possible.
+ */
+enum FaceError : int32_t {
+
+    /**
+     * A hardware error has occured that cannot be resolved. Try again later.
+     */
+    HW_UNAVAILABLE = 1,
+
+    /**
+     * The current enroll or authenticate operation could not be completed;
+     * the sensor was unable to process the current image.
+     */
+    UNABLE_TO_PROCESS = 2,
+
+    /**
+     * The current operation took too long to complete. This is intended to
+     * prevent programs from blocking the face HAL indefinitely. The timeout is
+     * framework and sensor-specific, but is generally on the order of 30
+     * seconds.
+     */
+    TIMEOUT = 3,
+
+    /**
+     * The current operation could not be completed because there is not enough
+     * storage space remaining to do so.
+     */
+    NO_SPACE = 4,
+
+    /**
+     * The current operation has been cancelled. This may happen if a new
+     * request (authenticate, remove) is initiated while an on-going operation
+     * is in progress, or if cancel() was called.
+     */
+    CANCELED = 5,
+
+    /**
+     * The current remove operation could not be completed; the face template
+     * provided could not be removed.
+     */
+    UNABLE_TO_REMOVE = 6,
+
+    /**
+     * Face authentication is locked out due to too many unsuccessful attempts.
+     * This is a "soft" lockout, and authentication can be restarted after
+     * a period of time, generally on the order of 30 seconds.
+     */
+    LOCKOUT = 7,
+
+    /**
+     * Used to enable a vendor-specific error message.
+     */
+    VENDOR = 8,
+
+    /**
+     * Face authentication is disabled until the user unlocks with strong
+     * authentication (PIN/Pattern/Password).
+     */
+    LOCKOUT_PERMANENT = 9
+};
+
+/**
+ * Face acquisition information provides feedback for the current enrollment
+ * or authentication operation.
+ *
+ * This information indicates that the user can take immediate action to resolve
+ * an issue, and clients must ensure that this information is surfaced to the
+ * user.
+ */
+enum FaceAcquiredInfo : int32_t {
+
+    /**
+     * The face acquired was good; no further user interaction is necessary.
+     */
+    GOOD = 0,
+
+    /**
+     * The face data acquired was too noisy or did not have sufficient detail.
+     * This is a catch-all for all acquisition errors not captured by the other
+     * constants.
+     */
+    INSUFFICIENT = 1,
+
+    /**
+     * Because there was too much ambient light, the captured face data was too
+     * bright. It's reasonable to return this after multiple
+     * FaceAcquiredInfo.INSUFFICIENT.
+     *
+     * The user is expected to take action to retry the operation in better
+     * lighting conditions when this is returned.
+     */
+    TOO_BRIGHT = 2,
+
+    /**
+     * Because there was not enough illumination, the captured face data was too
+     * dark. It's reasonable to return this after multiple
+     * FaceAcquiredInfo.INSUFFICIENT.
+     *
+     * The user is expected to take action to retry the operation in better
+     * lighting conditions when this is returned.
+     */
+    TOO_DARK = 3,
+
+    /**
+     * The detected face is too close to the sensor, and the image cannot be
+     * processed.
+     *
+     * The user is expected to be informed to move further from the sensor when
+     * this is returned.
+     */
+    TOO_CLOSE = 4,
+
+    /**
+     * The detected face is too small, as the user might be too far away from
+     * the sensor.
+     *
+     * The user is expected to be informed to move closer to the sensor when
+     * this is returned.
+     */
+    TOO_FAR = 5,
+
+    /**
+     * Only the upper part of the face was detected. The sensor's field of view
+     * is too high.
+     *
+     * The user should be informed to move up with respect to the sensor when
+     * this is returned.
+     */
+    FACE_TOO_HIGH = 6,
+
+    /**
+     * Only the lower part of the face was detected. The sensor's field of view
+     * is too low.
+     *
+     * The user should be informed to move down with respect to the sensor when
+     * this is returned.
+     */
+    FACE_TOO_LOW = 7,
+
+    /**
+     * Only the right part of the face was detected. The sensor's field of view
+     * is too far right.
+     *
+     * The user should be informed to move to the right with respect to the
+     * sensor when this is returned.
+     */
+    FACE_TOO_RIGHT = 8,
+
+    /**
+     * Only the left part of the face was detected. The sensor's field of view
+     * is too far left.
+     *
+     * The user should be informed to move to the left with respect to the
+     * sensor when this is returned.
+     */
+    FACE_TOO_LEFT = 9,
+
+    /**
+     * The user's eyes have strayed away from the sensor. If this message is
+     * sent, the user should be informed to look at the device. If the user
+     * can't be found in the frame, one of the other acquisition messages
+     * must be sent, e.g. NOT_DETECTED.
+     */
+    POOR_GAZE = 10,
+
+    /**
+     * No face was detected within the sensor's field of view.
+     *
+     * The user should be informed to point the sensor to a face when this is
+     * returned.
+     */
+    NOT_DETECTED = 11,
+
+    /**
+     * Too much motion was detected.
+     *
+     * The user should be informed to keep their face steady relative to the
+     * sensor.
+     */
+    TOO_MUCH_MOTION = 12,
+
+    /**
+     * The sensor needs to be re-calibrated. This is an unexpected condition,
+     * and must only be sent if a serious, uncorrectable, and unrecoverable
+     * calibration issue is detected which requires user intervention, e.g.
+     * re-enrolling. The expected response to this message is to direct the
+     * user to re-enroll.
+     */
+    RECALIBRATE = 13,
+
+    /**
+     * The face is too different from a previous acquisition. This condition
+     * only applies to enrollment. This can happen if the user passes the
+     * device to someone else in the middle of enrollment.
+     */
+    TOO_DIFFERENT = 14,
+
+    /**
+     * The face is too similar to a previous acquisition. This condition only
+     * applies to enrollment. The user should change their pose.
+     */
+    TOO_SIMILAR = 15,
+
+    /**
+     * The magnitude of the pan angle of the user’s face with respect to the sensor’s
+     * capture plane is too high.
+     *
+     * The pan angle is defined as the angle swept out by the user’s face turning
+     * their neck left and right. The pan angle would be zero if the user faced the
+     * camera directly.
+     *
+     * The user should be informed to look more directly at the camera.
+     */
+    PAN_TOO_EXTREME = 16,
+
+    /**
+     * The magnitude of the tilt angle of the user’s face with respect to the sensor’s
+     * capture plane is too high.
+     *
+     * The tilt angle is defined as the angle swept out by the user’s face looking up
+     * and down. The tilt angle would be zero if the user faced the camera directly.
+     *
+     * The user should be informed to look more directly at the camera.
+     */
+    TILT_TOO_EXTREME = 17,
+
+    /**
+     * The magnitude of the roll angle of the user’s face with respect to the sensor’s
+     * capture plane is too high.
+     *
+     * The roll angle is defined as the angle swept out by the user’s face tilting their head
+     * towards their shoulders to the left and right. The roll angle would be zero if the user's
+     * head is vertically aligned with the camera.
+     *
+     * The user should be informed to look more directly at the camera.
+     */
+    ROLL_TOO_EXTREME = 18,
+
+   /**
+     * The user’s face has been obscured by some object.
+     *
+     * The user should be informed to remove any objects from the line of sight from
+     * the sensor to the user’s face.
+     */
+    FACE_OBSCURED = 19,
+
+    /**
+     * This message represents the earliest message sent at the beginning of the authentication
+     * pipeline. It is expected to be used to measure latency. For example, in a camera-based
+     * authentication system it's expected to be sent prior to camera initialization. Note this
+     * should be sent whenever authentication is restarted (see IBiometricsFace#userActivity).
+     * The framework will measure latency based on the time between the last START message and the
+     * onAuthenticated callback.
+     */
+    START = 20,
+
+    /**
+     * Used to enable a vendor-specific acquisition message.
+     */
+    VENDOR = 21
+};
+
+/**
+ * Result structure with an additional uint64_t field. See documentation in
+ * setCallback(), preEnroll(), and getAuthenticatorId() for usage of the value.
+ */
+struct OptionalUint64 {
+    /**
+     * The return status.
+     */
+    Status status;
+
+    /**
+     * This value is only meaningful if status is OK.
+     */
+    uint64_t value;
+};
+
+/**
+ * Result structure with an addition bool field. See documentation in
+ * getRequireAttention() for usage of the value.
+ */
+struct OptionalBool {
+    /**
+     * The return status.
+     */
+    Status status;
+
+    /**
+     * This value is only meaningful if status is OK.
+     */
+    bool value;
+};
\ No newline at end of file
diff --git a/biometrics/fingerprint/2.1/default/android.hardware.biometrics.fingerprint@2.1-service.rc b/biometrics/fingerprint/2.1/default/android.hardware.biometrics.fingerprint@2.1-service.rc
index 9bfd3ba..1667677 100644
--- a/biometrics/fingerprint/2.1/default/android.hardware.biometrics.fingerprint@2.1-service.rc
+++ b/biometrics/fingerprint/2.1/default/android.hardware.biometrics.fingerprint@2.1-service.rc
@@ -4,5 +4,5 @@
     # /data is mounted.
     class late_start
     user system
-    group system input
-    writepid /dev/cpuset/system-background/tasks
\ No newline at end of file
+    group system input uhid
+    writepid /dev/cpuset/system-background/tasks
diff --git a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
index 90fbb3f..beb9a3e 100644
--- a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
+++ b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
@@ -105,6 +105,9 @@
   (ACL_PACKET_BOUNDARY_FLAG_FIRST_AUTO_FLUSHABLE \
    << ACL_PACKET_BOUNDARY_FLAG_OFFSET)
 
+// To be removed in VTS release builds
+#define ACL_HANDLE_QCA_DEBUG_MESSAGE 0xedc
+
 constexpr char kCallbackNameAclEventReceived[] = "aclDataReceived";
 constexpr char kCallbackNameHciEventReceived[] = "hciEventReceived";
 constexpr char kCallbackNameInitializationComplete[] = "initializationComplete";
@@ -318,6 +321,19 @@
       break;
     }
   }
+  // To be removed in VTS release builds
+  while (acl_queue.size() > 0) {
+    hidl_vec<uint8_t> acl_packet = acl_queue.front();
+    uint16_t connection_handle = acl_packet[1] & 0xF;
+    connection_handle <<= 8;
+    connection_handle |= acl_packet[0];
+    bool packet_is_no_op = connection_handle == ACL_HANDLE_QCA_DEBUG_MESSAGE;
+    if (packet_is_no_op) {
+      acl_queue.pop();
+    } else {
+      break;
+    }
+  }
 }
 
 // Receive an event, discarding NO-OPs.
diff --git a/broadcastradio/2.0/default/Android.bp b/broadcastradio/2.0/default/Android.bp
index 900454e..840c4b8 100644
--- a/broadcastradio/2.0/default/Android.bp
+++ b/broadcastradio/2.0/default/Android.bp
@@ -43,7 +43,6 @@
         "libbase",
         "libhidlbase",
         "libhidltransport",
-        "liblog",
         "libutils",
     ],
 }
diff --git a/broadcastradio/2.0/default/BroadcastRadio.cpp b/broadcastradio/2.0/default/BroadcastRadio.cpp
index 0148fec..28a0dd5 100644
--- a/broadcastradio/2.0/default/BroadcastRadio.cpp
+++ b/broadcastradio/2.0/default/BroadcastRadio.cpp
@@ -13,15 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#define LOG_TAG "BcRadioDef.module"
-#define LOG_NDEBUG 0
-
 #include "BroadcastRadio.h"
 
-#include <log/log.h>
-
 #include "resources.h"
 
+#include <android-base/logging.h>
+
 namespace android {
 namespace hardware {
 namespace broadcastradio {
@@ -66,7 +63,6 @@
       mAmFmConfig(gDefaultAmFmConfig) {}
 
 Return<void> BroadcastRadio::getProperties(getProperties_cb _hidl_cb) {
-    ALOGV("%s", __func__);
     _hidl_cb(mProperties);
     return {};
 }
@@ -77,8 +73,6 @@
 }
 
 Return<void> BroadcastRadio::getAmFmRegionConfig(bool full, getAmFmRegionConfig_cb _hidl_cb) {
-    ALOGV("%s(%d)", __func__, full);
-
     if (full) {
         AmFmRegionConfig config = {};
         config.ranges = hidl_vec<AmFmBandRange>({
@@ -96,8 +90,6 @@
 }
 
 Return<void> BroadcastRadio::getDabRegionConfig(getDabRegionConfig_cb _hidl_cb) {
-    ALOGV("%s", __func__);
-
     hidl_vec<DabTableEntry> config = {
         {"5A", 174928},  {"7D", 194064},  {"8A", 195936},  {"8B", 197648},  {"9A", 202928},
         {"9B", 204640},  {"9C", 206352},  {"10B", 211648}, {"10C", 213360}, {"10D", 215072},
@@ -111,7 +103,7 @@
 
 Return<void> BroadcastRadio::openSession(const sp<ITunerCallback>& callback,
                                          openSession_cb _hidl_cb) {
-    ALOGV("%s", __func__);
+    LOG(DEBUG) << "opening new session...";
 
     /* For the needs of default implementation it's fine to instantiate new session object
      * out of the lock scope. If your implementation needs it, use reentrant lock.
@@ -122,7 +114,7 @@
 
     auto oldSession = mSession.promote();
     if (oldSession != nullptr) {
-        ALOGI("Closing previously opened tuner");
+        LOG(INFO) << "closing previously opened tuner";
         oldSession->close();
         mSession = nullptr;
     }
@@ -134,14 +126,14 @@
 }
 
 Return<void> BroadcastRadio::getImage(uint32_t id, getImage_cb _hidl_cb) {
-    ALOGV("%s(%x)", __func__, id);
+    LOG(DEBUG) << "fetching image " << std::hex << id;
 
     if (id == resources::demoPngId) {
         _hidl_cb(std::vector<uint8_t>(resources::demoPng, std::end(resources::demoPng)));
         return {};
     }
 
-    ALOGI("Image %x doesn't exists", id);
+    LOG(INFO) << "image " << std::hex << id << " doesn't exists";
     _hidl_cb({});
     return {};
 }
@@ -149,7 +141,7 @@
 Return<void> BroadcastRadio::registerAnnouncementListener(
     const hidl_vec<AnnouncementType>& enabled, const sp<IAnnouncementListener>& /* listener */,
     registerAnnouncementListener_cb _hidl_cb) {
-    ALOGV("%s(%s)", __func__, toString(enabled).c_str());
+    LOG(DEBUG) << "registering announcement listener for " << toString(enabled);
 
     _hidl_cb(Result::NOT_SUPPORTED, nullptr);
     return {};
diff --git a/broadcastradio/2.0/default/TunerSession.cpp b/broadcastradio/2.0/default/TunerSession.cpp
index da97562..2ba4d02 100644
--- a/broadcastradio/2.0/default/TunerSession.cpp
+++ b/broadcastradio/2.0/default/TunerSession.cpp
@@ -14,15 +14,12 @@
  * limitations under the License.
  */
 
-#define LOG_TAG "BcRadioDef.tuner"
-#define LOG_NDEBUG 0
-
 #include "TunerSession.h"
 
 #include "BroadcastRadio.h"
 
+#include <android-base/logging.h>
 #include <broadcastradio-utils-2x/Utils.h>
-#include <log/log.h>
 
 namespace android {
 namespace hardware {
@@ -68,7 +65,7 @@
 }
 
 void TunerSession::tuneInternalLocked(const ProgramSelector& sel) {
-    ALOGV("%s(%s)", __func__, toString(sel).c_str());
+    LOG(VERBOSE) << "tune (internal) to " << toString(sel);
 
     VirtualProgram virtualProgram;
     ProgramInfo programInfo;
@@ -93,17 +90,18 @@
 }
 
 Return<Result> TunerSession::tune(const ProgramSelector& sel) {
-    ALOGV("%s(%s)", __func__, toString(sel).c_str());
+    LOG(DEBUG) << "tune to " << toString(sel);
+
     lock_guard<mutex> lk(mMut);
     if (mIsClosed) return Result::INVALID_STATE;
 
     if (!utils::isSupported(module().mProperties, sel)) {
-        ALOGW("Selector not supported");
+        LOG(WARNING) << "selector not supported: " << toString(sel);
         return Result::NOT_SUPPORTED;
     }
 
     if (!utils::isValid(sel)) {
-        ALOGE("ProgramSelector is not valid");
+        LOG(ERROR) << "selector is not valid: " << toString(sel);
         return Result::INVALID_ARGUMENTS;
     }
 
@@ -119,8 +117,9 @@
     return Result::OK;
 }
 
-Return<Result> TunerSession::scan(bool directionUp, bool /* skipSubChannel */) {
-    ALOGV("%s", __func__);
+Return<Result> TunerSession::scan(bool directionUp, bool skipSubChannel) {
+    LOG(DEBUG) << "seek up=" << directionUp << " skipSubChannel=" << skipSubChannel;
+
     lock_guard<mutex> lk(mMut);
     if (mIsClosed) return Result::INVALID_STATE;
 
@@ -130,8 +129,8 @@
 
     if (list.empty()) {
         mIsTuneCompleted = false;
-        auto task = [this, directionUp]() {
-            ALOGI("Performing failed seek up=%d", directionUp);
+        auto task = [this]() {
+            LOG(DEBUG) << "program list is empty, seek couldn't stop";
 
             mCallback->onTuneFailed(Result::TIMEOUT, {});
         };
@@ -162,7 +161,7 @@
 
     mIsTuneCompleted = false;
     auto task = [this, tuneTo, directionUp]() {
-        ALOGI("Performing seek up=%d", directionUp);
+        LOG(VERBOSE) << "executing seek up=" << directionUp;
 
         lock_guard<mutex> lk(mMut);
         tuneInternalLocked(tuneTo);
@@ -173,21 +172,21 @@
 }
 
 Return<Result> TunerSession::step(bool directionUp) {
-    ALOGV("%s", __func__);
+    LOG(DEBUG) << "step up=" << directionUp;
     lock_guard<mutex> lk(mMut);
     if (mIsClosed) return Result::INVALID_STATE;
 
     cancelLocked();
 
     if (!utils::hasId(mCurrentProgram, IdentifierType::AMFM_FREQUENCY)) {
-        ALOGE("Can't step in anything else than AM/FM");
+        LOG(WARNING) << "can't step in anything else than AM/FM";
         return Result::NOT_SUPPORTED;
     }
 
     auto stepTo = utils::getId(mCurrentProgram, IdentifierType::AMFM_FREQUENCY);
     auto range = getAmFmRangeLocked();
     if (!range) {
-        ALOGE("Can't find current band");
+        LOG(ERROR) << "can't find current band";
         return Result::INTERNAL_ERROR;
     }
 
@@ -201,7 +200,7 @@
 
     mIsTuneCompleted = false;
     auto task = [this, stepTo]() {
-        ALOGI("Performing step to %s", std::to_string(stepTo).c_str());
+        LOG(VERBOSE) << "executing step to " << stepTo;
 
         lock_guard<mutex> lk(mMut);
 
@@ -213,7 +212,7 @@
 }
 
 void TunerSession::cancelLocked() {
-    ALOGV("%s", __func__);
+    LOG(VERBOSE) << "cancelling current operations...";
 
     mThread.cancelAll();
     if (utils::getType(mCurrentProgram.primaryId) != IdentifierType::INVALID) {
@@ -222,7 +221,6 @@
 }
 
 Return<void> TunerSession::cancel() {
-    ALOGV("%s", __func__);
     lock_guard<mutex> lk(mMut);
     if (mIsClosed) return {};
 
@@ -232,7 +230,7 @@
 }
 
 Return<Result> TunerSession::startProgramListUpdates(const ProgramFilter& filter) {
-    ALOGV("%s(%s)", __func__, toString(filter).c_str());
+    LOG(DEBUG) << "requested program list updates, filter=" << toString(filter);
     lock_guard<mutex> lk(mMut);
     if (mIsClosed) return Result::INVALID_STATE;
 
@@ -259,41 +257,37 @@
 }
 
 Return<void> TunerSession::stopProgramListUpdates() {
-    ALOGV("%s", __func__);
+    LOG(DEBUG) << "requested program list updates to stop";
     return {};
 }
 
 Return<void> TunerSession::isConfigFlagSet(ConfigFlag flag, isConfigFlagSet_cb _hidl_cb) {
-    ALOGV("%s(%s)", __func__, toString(flag).c_str());
+    LOG(VERBOSE) << __func__ << " " << toString(flag);
 
     _hidl_cb(Result::NOT_SUPPORTED, false);
     return {};
 }
 
 Return<Result> TunerSession::setConfigFlag(ConfigFlag flag, bool value) {
-    ALOGV("%s(%s, %d)", __func__, toString(flag).c_str(), value);
+    LOG(VERBOSE) << __func__ << " " << toString(flag) << " " << value;
 
     return Result::NOT_SUPPORTED;
 }
 
 Return<void> TunerSession::setParameters(const hidl_vec<VendorKeyValue>& /* parameters */,
                                          setParameters_cb _hidl_cb) {
-    ALOGV("%s", __func__);
-
     _hidl_cb({});
     return {};
 }
 
 Return<void> TunerSession::getParameters(const hidl_vec<hidl_string>& /* keys */,
                                          getParameters_cb _hidl_cb) {
-    ALOGV("%s", __func__);
-
     _hidl_cb({});
     return {};
 }
 
 Return<void> TunerSession::close() {
-    ALOGV("%s", __func__);
+    LOG(DEBUG) << "closing session...";
     lock_guard<mutex> lk(mMut);
     if (mIsClosed) return {};
 
@@ -304,7 +298,7 @@
 
 std::optional<AmFmBandRange> TunerSession::getAmFmRangeLocked() const {
     if (!mIsTuneCompleted) {
-        ALOGW("tune operation in process");
+        LOG(WARNING) << "tune operation is in process";
         return {};
     }
     if (!utils::hasId(mCurrentProgram, IdentifierType::AMFM_FREQUENCY)) return {};
diff --git a/broadcastradio/2.0/default/VirtualProgram.cpp b/broadcastradio/2.0/default/VirtualProgram.cpp
index acde704..a971927 100644
--- a/broadcastradio/2.0/default/VirtualProgram.cpp
+++ b/broadcastradio/2.0/default/VirtualProgram.cpp
@@ -13,15 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#define LOG_TAG "BcRadioDef.VirtualProgram"
-
 #include "VirtualProgram.h"
 
 #include "resources.h"
 
 #include <android-base/logging.h>
 #include <broadcastradio-utils-2x/Utils.h>
-#include <log/log.h>
 
 namespace android {
 namespace hardware {
@@ -72,7 +69,7 @@
             info.physicallyTunedTo = selectId(IdentifierType::SXM_CHANNEL);
             break;
         default:
-            LOG(FATAL) << "Unsupported program type: " << toString(pType);
+            LOG(FATAL) << "unsupported program type: " << toString(pType);
     }
 
     info.infoFlags |= ProgramInfoFlags::TUNED;
diff --git a/broadcastradio/2.0/default/VirtualRadio.cpp b/broadcastradio/2.0/default/VirtualRadio.cpp
index f601d41..0b65979 100644
--- a/broadcastradio/2.0/default/VirtualRadio.cpp
+++ b/broadcastradio/2.0/default/VirtualRadio.cpp
@@ -13,13 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#define LOG_TAG "BcRadioDef.VirtualRadio"
-//#define LOG_NDEBUG 0
-
 #include "VirtualRadio.h"
 
 #include <broadcastradio-utils-2x/Utils.h>
-#include <log/log.h>
 
 namespace android {
 namespace hardware {
diff --git a/broadcastradio/2.0/default/service.cpp b/broadcastradio/2.0/default/service.cpp
index 7e677a1..af96dad 100644
--- a/broadcastradio/2.0/default/service.cpp
+++ b/broadcastradio/2.0/default/service.cpp
@@ -13,8 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#define LOG_TAG "BcRadioDef.service"
-
 #include <android-base/logging.h>
 #include <hidl/HidlTransportSupport.h>
 
@@ -26,7 +24,9 @@
 using android::hardware::broadcastradio::V2_0::implementation::BroadcastRadio;
 using android::hardware::broadcastradio::V2_0::implementation::gAmFmRadio;
 
-int main(int /* argc */, char** /* argv */) {
+int main() {
+    android::base::SetDefaultTag("BcRadioDef");
+    android::base::SetMinimumLogSeverity(android::base::VERBOSE);
     configureRpcThreadpool(4, true);
 
     BroadcastRadio broadcastRadio(gAmFmRadio);
diff --git a/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp b/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
index 3d7039d..e36f4d9 100644
--- a/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
+++ b/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-#define LOG_TAG "BcRadio.vts"
-#define LOG_NDEBUG 0
 #define EGMOCK_VERBOSE 1
 
 #include <VtsHalHidlTargetTestBase.h>
@@ -446,7 +444,7 @@
     EXPECT_EQ(Result::OK, result);
     EXPECT_TIMEOUT_CALL_WAIT(*mCallback, onCurrentProgramInfoChanged_, timeout::tune);
 
-    ALOGD("current program info: %s", toString(infoCb).c_str());
+    LOG(DEBUG) << "current program info: " << toString(infoCb);
 
     // it should tune exactly to what was requested
     auto freqs = utils::getAllIds(infoCb.selector, IdentifierType::AMFM_FREQUENCY);
@@ -514,12 +512,12 @@
     // TODO(b/69958777): see FmTune workaround
     std::this_thread::sleep_for(gTuneWorkaround);
 
-    EXPECT_TIMEOUT_CALL(*mCallback, onCurrentProgramInfoChanged_, _);
+    EXPECT_TIMEOUT_CALL(*mCallback, onCurrentProgramInfoChanged_, _).Times(AnyNumber());
     auto result = mSession->scan(true /* up */, true /* skip subchannel */);
     EXPECT_EQ(Result::OK, result);
     EXPECT_TIMEOUT_CALL_WAIT(*mCallback, onCurrentProgramInfoChanged_, timeout::tune);
 
-    EXPECT_TIMEOUT_CALL(*mCallback, onCurrentProgramInfoChanged_, _);
+    EXPECT_TIMEOUT_CALL(*mCallback, onCurrentProgramInfoChanged_, _).Times(AnyNumber());
     result = mSession->scan(false /* down */, false /* don't skip subchannel */);
     EXPECT_EQ(Result::OK, result);
     EXPECT_TIMEOUT_CALL_WAIT(*mCallback, onCurrentProgramInfoChanged_, timeout::tune);
@@ -548,7 +546,7 @@
     EXPECT_EQ(Result::OK, result);
     EXPECT_TIMEOUT_CALL_WAIT(*mCallback, onCurrentProgramInfoChanged_, timeout::tune);
 
-    EXPECT_TIMEOUT_CALL(*mCallback, onCurrentProgramInfoChanged_, _);
+    EXPECT_TIMEOUT_CALL(*mCallback, onCurrentProgramInfoChanged_, _).Times(AnyNumber());
     result = mSession->step(false /* down */);
     EXPECT_EQ(Result::OK, result);
     EXPECT_TIMEOUT_CALL_WAIT(*mCallback, onCurrentProgramInfoChanged_, timeout::tune);
@@ -823,11 +821,11 @@
     using android::hardware::broadcastradio::V2_0::vts::gEnv;
     using android::hardware::broadcastradio::V2_0::IBroadcastRadio;
     using android::hardware::broadcastradio::vts::BroadcastRadioHidlEnvironment;
+    android::base::SetDefaultTag("BcRadio.vts");
+    android::base::SetMinimumLogSeverity(android::base::VERBOSE);
     gEnv = new BroadcastRadioHidlEnvironment<IBroadcastRadio>;
     ::testing::AddGlobalTestEnvironment(gEnv);
     ::testing::InitGoogleTest(&argc, argv);
     gEnv->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    ALOGI("Test result = %d", status);
-    return status;
+    return RUN_ALL_TESTS();
 }
diff --git a/broadcastradio/common/utils/Android.bp b/broadcastradio/common/utils/Android.bp
index 33ba7da..32e06d7 100644
--- a/broadcastradio/common/utils/Android.bp
+++ b/broadcastradio/common/utils/Android.bp
@@ -29,7 +29,6 @@
     export_include_dirs: ["include"],
     shared_libs: [
         "libbase",
-        "liblog",
         "libutils",
     ],
 }
diff --git a/broadcastradio/common/utils/WorkerThread.cpp b/broadcastradio/common/utils/WorkerThread.cpp
index bfcbb39..31f4d3f 100644
--- a/broadcastradio/common/utils/WorkerThread.cpp
+++ b/broadcastradio/common/utils/WorkerThread.cpp
@@ -14,13 +14,8 @@
  * limitations under the License.
  */
 
-#define LOG_TAG "WorkerThread"
-//#define LOG_NDEBUG 0
-
 #include <broadcastradio-utils/WorkerThread.h>
 
-#include <log/log.h>
-
 namespace android {
 
 using std::chrono::milliseconds;
@@ -39,7 +34,6 @@
 WorkerThread::WorkerThread() : mIsTerminating(false), mThread(&WorkerThread::threadLoop, this) {}
 
 WorkerThread::~WorkerThread() {
-    ALOGV("%s", __func__);
     {
         lock_guard<mutex> lk(mMut);
         mIsTerminating = true;
@@ -49,8 +43,6 @@
 }
 
 void WorkerThread::schedule(function<void()> task, milliseconds delay) {
-    ALOGV("%s", __func__);
-
     auto when = steady_clock::now() + delay;
 
     lock_guard<mutex> lk(mMut);
@@ -59,14 +51,11 @@
 }
 
 void WorkerThread::cancelAll() {
-    ALOGV("%s", __func__);
-
     lock_guard<mutex> lk(mMut);
     priority_queue<Task>().swap(mTasks);  // empty queue
 }
 
 void WorkerThread::threadLoop() {
-    ALOGV("%s", __func__);
     while (!mIsTerminating) {
         unique_lock<mutex> lk(mMut);
         if (mTasks.empty()) {
diff --git a/broadcastradio/common/utils2x/Utils.cpp b/broadcastradio/common/utils2x/Utils.cpp
index f292c08..7892653 100644
--- a/broadcastradio/common/utils2x/Utils.cpp
+++ b/broadcastradio/common/utils2x/Utils.cpp
@@ -14,12 +14,10 @@
  * limitations under the License.
  */
 #define LOG_TAG "BcRadioDef.utils"
-//#define LOG_NDEBUG 0
 
 #include <broadcastradio-utils-2x/Utils.h>
 
 #include <android-base/logging.h>
-#include <log/log.h>
 
 namespace android {
 namespace hardware {
@@ -130,7 +128,7 @@
         case IdentifierType::SXM_SERVICE_ID:
             return haveEqualIds(a, b, IdentifierType::SXM_SERVICE_ID);
         default:  // includes all vendor types
-            ALOGW("Unsupported program type: %s", toString(type).c_str());
+            LOG(WARNING) << "unsupported program type: " << toString(type);
             return false;
     }
 }
@@ -166,7 +164,7 @@
         return val;
     }
 
-    ALOGW("Identifier %s not found", toString(type).c_str());
+    LOG(WARNING) << "identifier not found: " << toString(type);
     return 0;
 }
 
@@ -205,7 +203,7 @@
     auto expect = [&valid](bool condition, std::string message) {
         if (!condition) {
             valid = false;
-            ALOGE("Identifier not valid, expected %s", message.c_str());
+            LOG(ERROR) << "identifier not valid, expected " << message;
         }
     };
 
diff --git a/broadcastradio/common/vts/utils/include/broadcastradio-vts-utils/mock-timeout.h b/broadcastradio/common/vts/utils/include/broadcastradio-vts-utils/mock-timeout.h
index 1f716f1..f6cd6ae 100644
--- a/broadcastradio/common/vts/utils/include/broadcastradio-vts-utils/mock-timeout.h
+++ b/broadcastradio/common/vts/utils/include/broadcastradio-vts-utils/mock-timeout.h
@@ -29,7 +29,7 @@
  * INTERNAL IMPLEMENTATION - don't use in user code.
  */
 #if EGMOCK_VERBOSE
-#define EGMOCK_LOG_(...) ALOGV("egmock: " __VA_ARGS__)
+#define EGMOCK_LOG_(...) LOG(VERBOSE) << "egmock: " << __VA_ARGS__
 #else
 #define EGMOCK_LOG_(...)
 #endif
diff --git a/camera/common/1.0/default/CameraModule.cpp b/camera/common/1.0/default/CameraModule.cpp
index dc4e0f0..467c121 100644
--- a/camera/common/1.0/default/CameraModule.cpp
+++ b/camera/common/1.0/default/CameraModule.cpp
@@ -235,7 +235,7 @@
     chars.update(keyTag, availableKeys);
 }
 
-CameraModule::CameraModule(camera_module_t *module) {
+CameraModule::CameraModule(camera_module_t *module) : mNumberOfCameras(0) {
     if (module == NULL) {
         ALOGE("%s: camera hardware module must not be null", __FUNCTION__);
         assert(0);
@@ -253,6 +253,14 @@
         }
         mCameraInfoMap.removeItemsAt(0);
     }
+
+    while (mPhysicalCameraInfoMap.size() > 0) {
+        camera_metadata_t* metadata = mPhysicalCameraInfoMap.editValueAt(0);
+        if (metadata != NULL) {
+            free_camera_metadata(metadata);
+        }
+        mPhysicalCameraInfoMap.removeItemsAt(0);
+    }
 }
 
 int CameraModule::init() {
@@ -264,7 +272,8 @@
         res = mModule->init();
         ATRACE_END();
     }
-    mCameraInfoMap.setCapacity(getNumberOfCameras());
+    mNumberOfCameras = getNumberOfCameras();
+    mCameraInfoMap.setCapacity(mNumberOfCameras);
     return res;
 }
 
@@ -319,6 +328,52 @@
     return OK;
 }
 
+int CameraModule::getPhysicalCameraInfo(int physicalCameraId, camera_metadata_t **physicalInfo) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mCameraInfoLock);
+    if (physicalCameraId < mNumberOfCameras) {
+        ALOGE("%s: Invalid physical camera ID %d", __FUNCTION__, physicalCameraId);
+        return -EINVAL;
+    }
+
+    // Only query physical camera info for 2.5 version for newer
+    int apiVersion = mModule->common.module_api_version;
+    if (apiVersion < CAMERA_MODULE_API_VERSION_2_5) {
+        ALOGE("%s: Module version must be at least 2.5 to handle getPhysicalCameraInfo",
+                __FUNCTION__);
+        return -ENODEV;
+    }
+    if (mModule->get_physical_camera_info == nullptr) {
+        ALOGE("%s: get_physical_camera is NULL for module version 2.5", __FUNCTION__);
+        return -EINVAL;
+    }
+
+    ssize_t index = mPhysicalCameraInfoMap.indexOfKey(physicalCameraId);
+    if (index == NAME_NOT_FOUND) {
+        // Get physical camera characteristics, and cache it
+        camera_metadata_t *info = nullptr;
+        ATRACE_BEGIN("camera_module->get_physical_camera_info");
+        int ret = mModule->get_physical_camera_info(physicalCameraId, &info);
+        ATRACE_END();
+        if (ret != 0) {
+            return ret;
+        }
+
+        // The camera_metadata_t returned by get_physical_camera_info could be using
+        // more memory than necessary due to unused reserved space. Reduce the
+        // size by appending it to a new CameraMetadata object, which internally
+        // calls resizeIfNeeded.
+        CameraMetadata m;
+        m.append(info);
+        camera_metadata_t* derivedMetadata = m.release();
+        index = mPhysicalCameraInfoMap.add(physicalCameraId, derivedMetadata);
+    }
+
+    assert(index != NAME_NOT_FOUND);
+    *physicalInfo = mPhysicalCameraInfoMap[index];
+    return OK;
+}
+
 int CameraModule::getDeviceVersion(int cameraId) {
     ssize_t index = mDeviceVersionMap.indexOfKey(cameraId);
     if (index == NAME_NOT_FOUND) {
@@ -412,6 +467,64 @@
     return res;
 }
 
+int CameraModule::isStreamCombinationSupported(int cameraId, camera_stream_combination_t *streams) {
+    int res = INVALID_OPERATION;
+    if (mModule->is_stream_combination_supported != NULL) {
+        ATRACE_BEGIN("camera_module->is_stream_combination_supported");
+        res = mModule->is_stream_combination_supported(cameraId, streams);
+        ATRACE_END();
+    }
+    return res;
+}
+
+void CameraModule::notifyDeviceStateChange(uint64_t deviceState) {
+   if (getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_5 &&
+           mModule->notify_device_state_change != NULL) {
+       ATRACE_BEGIN("camera_module->notify_device_state_change");
+       ALOGI("%s: calling notify_device_state_change with state %" PRId64, __FUNCTION__,
+               deviceState);
+       mModule->notify_device_state_change(deviceState);
+       ATRACE_END();
+   }
+}
+
+bool CameraModule::isLogicalMultiCamera(
+        const common::V1_0::helper::CameraMetadata& metadata,
+        std::unordered_set<std::string>* physicalCameraIds) {
+    if (physicalCameraIds == nullptr) {
+        ALOGE("%s: physicalCameraIds must not be null", __FUNCTION__);
+        return false;
+    }
+
+    bool isLogicalMultiCamera = false;
+    camera_metadata_ro_entry_t capabilities =
+            metadata.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+    for (size_t i = 0; i < capabilities.count; i++) {
+        if (capabilities.data.u8[i] ==
+                ANDROID_REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA) {
+            isLogicalMultiCamera = true;
+            break;
+        }
+    }
+
+    if (isLogicalMultiCamera) {
+        camera_metadata_ro_entry_t entry =
+                metadata.find(ANDROID_LOGICAL_MULTI_CAMERA_PHYSICAL_IDS);
+        const uint8_t* ids = entry.data.u8;
+        size_t start = 0;
+        for (size_t i = 0; i < entry.count; ++i) {
+            if (ids[i] == '\0') {
+                if (start != i) {
+                    const char* physicalId = reinterpret_cast<const char*>(ids+start);
+                    physicalCameraIds->emplace(physicalId);
+                }
+                start = i + 1;
+            }
+        }
+    }
+    return isLogicalMultiCamera;
+}
+
 status_t CameraModule::filterOpenErrorCode(status_t err) {
     switch(err) {
         case NO_ERROR:
@@ -426,8 +539,24 @@
 }
 
 void CameraModule::removeCamera(int cameraId) {
-    free_camera_metadata(
-        const_cast<camera_metadata_t*>(mCameraInfoMap[cameraId].static_camera_characteristics));
+    std::unordered_set<std::string> physicalIds;
+    camera_metadata_t *metadata = const_cast<camera_metadata_t*>(
+            mCameraInfoMap.valueFor(cameraId).static_camera_characteristics);
+    common::V1_0::helper::CameraMetadata hidlMetadata(metadata);
+
+    if (isLogicalMultiCamera(hidlMetadata, &physicalIds)) {
+        for (const auto& id : physicalIds) {
+            int idInt = std::stoi(id);
+            if (mPhysicalCameraInfoMap.indexOfKey(idInt) >= 0) {
+                free_camera_metadata(mPhysicalCameraInfoMap[idInt]);
+                mPhysicalCameraInfoMap.removeItem(idInt);
+            } else {
+                ALOGE("%s: Cannot find corresponding static metadata for physical id %s",
+                        __FUNCTION__, id.c_str());
+            }
+        }
+    }
+    free_camera_metadata(metadata);
     mCameraInfoMap.removeItem(cameraId);
     mDeviceVersionMap.removeItem(cameraId);
 }
diff --git a/camera/common/1.0/default/OWNERS b/camera/common/1.0/default/OWNERS
index 18acfee..369b204 100644
--- a/camera/common/1.0/default/OWNERS
+++ b/camera/common/1.0/default/OWNERS
@@ -1,6 +1,7 @@
 cychen@google.com
 epeev@google.com
 etalvala@google.com
+jchowdhary@google.com
 shuzhenwang@google.com
 yinchiayeh@google.com
 zhijunhe@google.com
diff --git a/camera/common/1.0/default/VendorTagDescriptor.cpp b/camera/common/1.0/default/VendorTagDescriptor.cpp
index 052bf5b..d2bee85 100644
--- a/camera/common/1.0/default/VendorTagDescriptor.cpp
+++ b/camera/common/1.0/default/VendorTagDescriptor.cpp
@@ -176,6 +176,93 @@
 
 }
 
+int VendorTagDescriptorCache::getTagCount(metadata_vendor_id_t id) const {
+    int ret = 0;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getTagCount();
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+void VendorTagDescriptorCache::getTagArray(uint32_t* tagArray, metadata_vendor_id_t id) const {
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        desc->second->getTagArray(tagArray);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+}
+
+const char* VendorTagDescriptorCache::getSectionName(uint32_t tag, metadata_vendor_id_t id) const {
+    const char* ret = nullptr;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getSectionName(tag);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+const char* VendorTagDescriptorCache::getTagName(uint32_t tag, metadata_vendor_id_t id) const {
+    const char* ret = nullptr;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getTagName(tag);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+int VendorTagDescriptorCache::getTagType(uint32_t tag, metadata_vendor_id_t id) const {
+    int ret = 0;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getTagType(tag);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+void VendorTagDescriptorCache::dump(int fd, int verbosity, int indentation) const {
+    for (const auto& desc : mVendorMap) {
+        desc.second->dump(fd, verbosity, indentation);
+    }
+}
+
+int32_t VendorTagDescriptorCache::addVendorDescriptor(
+    metadata_vendor_id_t id, sp<hardware::camera::common::V1_0::helper::VendorTagDescriptor> desc) {
+    auto entry = mVendorMap.find(id);
+    if (entry != mVendorMap.end()) {
+        ALOGE("%s: Vendor descriptor with same id already present!", __func__);
+        return BAD_VALUE;
+    }
+
+    mVendorMap.emplace(id, desc);
+    return NO_ERROR;
+}
+
+int32_t VendorTagDescriptorCache::getVendorTagDescriptor(
+    metadata_vendor_id_t id,
+    sp<hardware::camera::common::V1_0::helper::VendorTagDescriptor>* desc /*out*/) {
+    auto entry = mVendorMap.find(id);
+    if (entry == mVendorMap.end()) {
+        return NAME_NOT_FOUND;
+    }
+
+    *desc = entry->second;
+
+    return NO_ERROR;
+}
 } // namespace params
 } // namespace camera2
 
@@ -192,10 +279,17 @@
 static const char* vendor_tag_descriptor_get_tag_name(const vendor_tag_ops_t* v, uint32_t tag);
 static int vendor_tag_descriptor_get_tag_type(const vendor_tag_ops_t* v, uint32_t tag);
 
+static int vendor_tag_descriptor_cache_get_tag_count(metadata_vendor_id_t id);
+static void vendor_tag_descriptor_cache_get_all_tags(uint32_t* tagArray, metadata_vendor_id_t id);
+static const char* vendor_tag_descriptor_cache_get_section_name(uint32_t tag,
+                                                                metadata_vendor_id_t id);
+static const char* vendor_tag_descriptor_cache_get_tag_name(uint32_t tag, metadata_vendor_id_t id);
+static int vendor_tag_descriptor_cache_get_tag_type(uint32_t tag, metadata_vendor_id_t id);
 } /* extern "C" */
 
 static Mutex sLock;
 static sp<VendorTagDescriptor> sGlobalVendorTagDescriptor;
+static sp<VendorTagDescriptorCache> sGlobalVendorTagDescriptorCache;
 
 status_t VendorTagDescriptor::createDescriptorFromOps(const vendor_tag_ops_t* vOps,
             /*out*/
@@ -310,6 +404,39 @@
     return sGlobalVendorTagDescriptor;
 }
 
+status_t VendorTagDescriptorCache::setAsGlobalVendorTagCache(
+    const sp<VendorTagDescriptorCache>& cache) {
+    status_t res = OK;
+    Mutex::Autolock al(sLock);
+    sGlobalVendorTagDescriptorCache = cache;
+
+    struct vendor_tag_cache_ops* opsPtr = NULL;
+    if (cache != NULL) {
+        opsPtr = &(cache->mVendorCacheOps);
+        opsPtr->get_tag_count = vendor_tag_descriptor_cache_get_tag_count;
+        opsPtr->get_all_tags = vendor_tag_descriptor_cache_get_all_tags;
+        opsPtr->get_section_name = vendor_tag_descriptor_cache_get_section_name;
+        opsPtr->get_tag_name = vendor_tag_descriptor_cache_get_tag_name;
+        opsPtr->get_tag_type = vendor_tag_descriptor_cache_get_tag_type;
+    }
+    if ((res = set_camera_metadata_vendor_cache_ops(opsPtr)) != OK) {
+        ALOGE("%s: Could not set vendor tag cache, received error %s (%d).", __FUNCTION__,
+              strerror(-res), res);
+    }
+    return res;
+}
+
+void VendorTagDescriptorCache::clearGlobalVendorTagCache() {
+    Mutex::Autolock al(sLock);
+    set_camera_metadata_vendor_cache_ops(NULL);
+    sGlobalVendorTagDescriptorCache.clear();
+}
+
+sp<VendorTagDescriptorCache> VendorTagDescriptorCache::getGlobalVendorTagCache() {
+    Mutex::Autolock al(sLock);
+    return sGlobalVendorTagDescriptorCache;
+}
+
 extern "C" {
 
 int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* /*v*/) {
@@ -357,6 +484,50 @@
     return sGlobalVendorTagDescriptor->getTagType(tag);
 }
 
+int vendor_tag_descriptor_cache_get_tag_count(metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_TAG_COUNT_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getTagCount(id);
+}
+
+void vendor_tag_descriptor_cache_get_all_tags(uint32_t* tagArray, metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+    }
+    sGlobalVendorTagDescriptorCache->getTagArray(tagArray, id);
+}
+
+const char* vendor_tag_descriptor_cache_get_section_name(uint32_t tag, metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_SECTION_NAME_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getSectionName(tag, id);
+}
+
+const char* vendor_tag_descriptor_cache_get_tag_name(uint32_t tag, metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_TAG_NAME_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getTagName(tag, id);
+}
+
+int vendor_tag_descriptor_cache_get_tag_type(uint32_t tag, metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_TAG_NAME_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getTagType(tag, id);
+}
+
 } /* extern "C" */
 
 } // namespace helper
diff --git a/camera/common/1.0/default/include/CameraModule.h b/camera/common/1.0/default/include/CameraModule.h
index deebd09..c89e934 100644
--- a/camera/common/1.0/default/include/CameraModule.h
+++ b/camera/common/1.0/default/include/CameraModule.h
@@ -17,6 +17,9 @@
 #ifndef CAMERA_COMMON_1_0_CAMERAMODULE_H
 #define CAMERA_COMMON_1_0_CAMERAMODULE_H
 
+#include <string>
+#include <unordered_set>
+
 #include <hardware/camera.h>
 #include <utils/Mutex.h>
 #include <utils/KeyedVector.h>
@@ -65,6 +68,13 @@
     void *getDso();
     // Only used by CameraProvider
     void removeCamera(int cameraId);
+    int getPhysicalCameraInfo(int physicalCameraId, camera_metadata_t **physicalInfo);
+    int isStreamCombinationSupported(int cameraId, camera_stream_combination_t *streams);
+    void notifyDeviceStateChange(uint64_t deviceState);
+
+    static bool isLogicalMultiCamera(
+            const common::V1_0::helper::CameraMetadata& metadata,
+            std::unordered_set<std::string>* physicalCameraIds);
 
 private:
     // Derive camera characteristics keys defined after HAL device version
@@ -74,8 +84,10 @@
             int32_t keyTag, const Vector<int32_t>& appendKeys);
     status_t filterOpenErrorCode(status_t err);
     camera_module_t *mModule;
+    int mNumberOfCameras;
     KeyedVector<int, camera_info> mCameraInfoMap;
     KeyedVector<int, int> mDeviceVersionMap;
+    KeyedVector<int, camera_metadata_t*> mPhysicalCameraInfoMap;
     Mutex mCameraInfoLock;
 };
 
diff --git a/camera/common/1.0/default/include/VendorTagDescriptor.h b/camera/common/1.0/default/include/VendorTagDescriptor.h
index a040540..0f54db5 100644
--- a/camera/common/1.0/default/include/VendorTagDescriptor.h
+++ b/camera/common/1.0/default/include/VendorTagDescriptor.h
@@ -157,6 +157,81 @@
 
 };
 
+} /* namespace helper */
+} /* namespace V1_0 */
+} /* namespace common */
+} /* namespace camera */
+
+namespace camera2 {
+namespace params {
+
+class VendorTagDescriptorCache {
+   public:
+    typedef android::hardware::camera::common::V1_0::helper::VendorTagDescriptor
+        VendorTagDescriptor;
+    VendorTagDescriptorCache(){};
+    int32_t addVendorDescriptor(metadata_vendor_id_t id, sp<VendorTagDescriptor> desc);
+
+    int32_t getVendorTagDescriptor(metadata_vendor_id_t id, sp<VendorTagDescriptor>* desc /*out*/);
+
+    // Returns the number of vendor tags defined.
+    int getTagCount(metadata_vendor_id_t id) const;
+
+    // Returns an array containing the id's of vendor tags defined.
+    void getTagArray(uint32_t* tagArray, metadata_vendor_id_t id) const;
+
+    // Returns the section name string for a given vendor tag id.
+    const char* getSectionName(uint32_t tag, metadata_vendor_id_t id) const;
+
+    // Returns the tag name string for a given vendor tag id.
+    const char* getTagName(uint32_t tag, metadata_vendor_id_t id) const;
+
+    // Returns the tag type for a given vendor tag id.
+    int getTagType(uint32_t tag, metadata_vendor_id_t id) const;
+
+    /**
+     * Dump the currently configured vendor tags to a file descriptor.
+     */
+    void dump(int fd, int verbosity, int indentation) const;
+
+   protected:
+    std::unordered_map<metadata_vendor_id_t, sp<VendorTagDescriptor>> mVendorMap;
+    struct vendor_tag_cache_ops mVendorCacheOps;
+};
+
+} /* namespace params */
+} /* namespace camera2 */
+
+namespace camera {
+namespace common {
+namespace V1_0 {
+namespace helper {
+
+class VendorTagDescriptorCache
+    : public ::android::hardware::camera2::params::VendorTagDescriptorCache,
+      public LightRefBase<VendorTagDescriptorCache> {
+   public:
+    /**
+     * Sets the global vendor tag descriptor cache to use for this process.
+     * Camera metadata operations that access vendor tags will use the
+     * vendor tag definitions set this way.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t setAsGlobalVendorTagCache(const sp<VendorTagDescriptorCache>& cache);
+
+    /**
+     * Returns the global vendor tag cache used by this process.
+     * This will contain NULL if no vendor tags are defined.
+     */
+    static sp<VendorTagDescriptorCache> getGlobalVendorTagCache();
+
+    /**
+     * Clears the global vendor tag cache used by this process.
+     */
+    static void clearGlobalVendorTagCache();
+};
+
 } // namespace helper
 } // namespace V1_0
 } // namespace common
diff --git a/camera/device/1.0/default/OWNERS b/camera/device/1.0/default/OWNERS
index 18acfee..369b204 100644
--- a/camera/device/1.0/default/OWNERS
+++ b/camera/device/1.0/default/OWNERS
@@ -1,6 +1,7 @@
 cychen@google.com
 epeev@google.com
 etalvala@google.com
+jchowdhary@google.com
 shuzhenwang@google.com
 yinchiayeh@google.com
 zhijunhe@google.com
diff --git a/camera/device/3.2/default/CameraDevice.cpp b/camera/device/3.2/default/CameraDevice.cpp
index 297e778..4f85b58 100644
--- a/camera/device/3.2/default/CameraDevice.cpp
+++ b/camera/device/3.2/default/CameraDevice.cpp
@@ -101,7 +101,7 @@
 }
 
 // Methods from ::android::hardware::camera::device::V3_2::ICameraDevice follow.
-Return<void> CameraDevice::getResourceCost(getResourceCost_cb _hidl_cb)  {
+Return<void> CameraDevice::getResourceCost(ICameraDevice::getResourceCost_cb _hidl_cb)  {
     Status status = initStatus();
     CameraResourceCost resCost;
     if (status == Status::OK) {
@@ -141,7 +141,8 @@
     return Void();
 }
 
-Return<void> CameraDevice::getCameraCharacteristics(getCameraCharacteristics_cb _hidl_cb)  {
+Return<void> CameraDevice::getCameraCharacteristics(
+        ICameraDevice::getCameraCharacteristics_cb _hidl_cb)  {
     Status status = initStatus();
     CameraMetadata cameraCharacteristics;
     if (status == Status::OK) {
@@ -172,7 +173,8 @@
     return status;
 }
 
-Return<void> CameraDevice::open(const sp<ICameraDeviceCallback>& callback, open_cb _hidl_cb)  {
+Return<void> CameraDevice::open(const sp<ICameraDeviceCallback>& callback,
+        ICameraDevice::open_cb _hidl_cb)  {
     Status status = initStatus();
     sp<CameraDeviceSession> session = nullptr;
 
diff --git a/camera/device/3.2/default/CameraDeviceSession.cpp b/camera/device/3.2/default/CameraDeviceSession.cpp
index fd785df..f2d7a47 100644
--- a/camera/device/3.2/default/CameraDeviceSession.cpp
+++ b/camera/device/3.2/default/CameraDeviceSession.cpp
@@ -44,13 +44,15 @@
 static constexpr int METADATA_SHRINK_REL_THRESHOLD = 2;
 
 HandleImporter CameraDeviceSession::sHandleImporter;
+buffer_handle_t CameraDeviceSession::sEmptyBuffer = nullptr;
+
 const int CameraDeviceSession::ResultBatcher::NOT_BATCHED;
 
 CameraDeviceSession::CameraDeviceSession(
     camera3_device_t* device,
     const camera_metadata_t* deviceInfo,
     const sp<ICameraDeviceCallback>& callback) :
-        camera3_callback_ops({&sProcessCaptureResult, &sNotify}),
+        camera3_callback_ops({&sProcessCaptureResult, &sNotify, nullptr, nullptr}),
         mDevice(device),
         mDeviceVersion(device->common.version),
         mFreeBufEarly(shouldFreeBufEarly()),
@@ -246,10 +248,50 @@
     }
 }
 
+Status CameraDeviceSession::importBuffer(int32_t streamId,
+        uint64_t bufId, buffer_handle_t buf,
+        /*out*/buffer_handle_t** outBufPtr,
+        bool allowEmptyBuf) {
+
+    if (buf == nullptr && bufId == BUFFER_ID_NO_BUFFER) {
+        if (allowEmptyBuf) {
+            *outBufPtr = &sEmptyBuffer;
+            return Status::OK;
+        } else {
+            ALOGE("%s: bufferId %" PRIu64 " has null buffer handle!", __FUNCTION__, bufId);
+            return Status::ILLEGAL_ARGUMENT;
+        }
+    }
+
+    Mutex::Autolock _l(mInflightLock);
+    CirculatingBuffers& cbs = mCirculatingBuffers[streamId];
+    if (cbs.count(bufId) == 0) {
+        // Register a newly seen buffer
+        buffer_handle_t importedBuf = buf;
+        sHandleImporter.importBuffer(importedBuf);
+        if (importedBuf == nullptr) {
+            ALOGE("%s: output buffer for stream %d is invalid!", __FUNCTION__, streamId);
+            return Status::INTERNAL_ERROR;
+        } else {
+            cbs[bufId] = importedBuf;
+        }
+    }
+    *outBufPtr = &cbs[bufId];
+    return Status::OK;
+}
+
 Status CameraDeviceSession::importRequest(
         const CaptureRequest& request,
         hidl_vec<buffer_handle_t*>& allBufPtrs,
         hidl_vec<int>& allFences) {
+    return importRequestImpl(request, allBufPtrs, allFences);
+}
+
+Status CameraDeviceSession::importRequestImpl(
+        const CaptureRequest& request,
+        hidl_vec<buffer_handle_t*>& allBufPtrs,
+        hidl_vec<int>& allFences,
+        bool allowEmptyBuf) {
     bool hasInputBuf = (request.inputBuffer.streamId != -1 &&
             request.inputBuffer.bufferId != 0);
     size_t numOutputBufs = request.outputBuffers.size();
@@ -277,25 +319,15 @@
     }
 
     for (size_t i = 0; i < numBufs; i++) {
-        buffer_handle_t buf = allBufs[i];
-        uint64_t bufId = allBufIds[i];
-        CirculatingBuffers& cbs = mCirculatingBuffers[streamIds[i]];
-        if (cbs.count(bufId) == 0) {
-            if (buf == nullptr) {
-                ALOGE("%s: bufferId %" PRIu64 " has null buffer handle!", __FUNCTION__, bufId);
-                return Status::ILLEGAL_ARGUMENT;
-            }
-            // Register a newly seen buffer
-            buffer_handle_t importedBuf = buf;
-            sHandleImporter.importBuffer(importedBuf);
-            if (importedBuf == nullptr) {
-                ALOGE("%s: output buffer %zu is invalid!", __FUNCTION__, i);
-                return Status::INTERNAL_ERROR;
-            } else {
-                cbs[bufId] = importedBuf;
-            }
+        Status st = importBuffer(
+                streamIds[i], allBufIds[i], allBufs[i], &allBufPtrs[i],
+                // Disallow empty buf for input stream, otherwise follow
+                // the allowEmptyBuf argument.
+                (hasInputBuf && i == numOutputBufs) ? false : allowEmptyBuf);
+        if (st != Status::OK) {
+            // Detailed error logs printed in importBuffer
+            return st;
         }
-        allBufPtrs[i] = &cbs[bufId];
     }
 
     // All buffers are imported. Now validate output buffer acquire fences
@@ -1271,18 +1303,26 @@
         ATRACE_END();
 
         // free all imported buffers
+        Mutex::Autolock _l(mInflightLock);
         for(auto& pair : mCirculatingBuffers) {
             CirculatingBuffers& buffers = pair.second;
             for (auto& p2 : buffers) {
                 sHandleImporter.freeBuffer(p2.second);
             }
+            buffers.clear();
         }
+        mCirculatingBuffers.clear();
 
         mClosed = true;
     }
     return Void();
 }
 
+uint64_t CameraDeviceSession::getCapResultBufferId(const buffer_handle_t&, int) {
+    // No need to fill in bufferId by default
+    return BUFFER_ID_NO_BUFFER;
+}
+
 status_t CameraDeviceSession::constructCaptureResult(CaptureResult& result,
                                                  const camera3_capture_result *hal_result) {
     uint32_t frameNumber = hal_result->frame_number;
@@ -1396,6 +1436,14 @@
         result.outputBuffers[i].streamId =
                 static_cast<Camera3Stream*>(hal_result->output_buffers[i].stream)->mId;
         result.outputBuffers[i].buffer = nullptr;
+        if (hal_result->output_buffers[i].buffer != nullptr) {
+            result.outputBuffers[i].bufferId = getCapResultBufferId(
+                    *(hal_result->output_buffers[i].buffer),
+                    result.outputBuffers[i].streamId);
+        } else {
+            result.outputBuffers[i].bufferId = 0;
+        }
+
         result.outputBuffers[i].status = (BufferStatus) hal_result->output_buffers[i].status;
         // skip acquire fence since it's of no use to camera service
         if (hal_result->output_buffers[i].release_fence != -1) {
diff --git a/camera/device/3.2/default/CameraDeviceSession.h b/camera/device/3.2/default/CameraDeviceSession.h
index bcee259..a96c245 100644
--- a/camera/device/3.2/default/CameraDeviceSession.h
+++ b/camera/device/3.2/default/CameraDeviceSession.h
@@ -161,6 +161,7 @@
     std::map<uint32_t, bool> mInflightRawBoostPresent;
     ::android::hardware::camera::common::V1_0::helper::CameraMetadata mOverridenRequest;
 
+    static const uint64_t BUFFER_ID_NO_BUFFER = 0;
     // buffers currently ciculating between HAL and camera service
     // key: bufferId sent via HIDL interface
     // value: imported buffer_handle_t
@@ -171,6 +172,7 @@
     std::map<int, CirculatingBuffers> mCirculatingBuffers;
 
     static HandleImporter sHandleImporter;
+    static buffer_handle_t sEmptyBuffer;
 
     bool mInitFail;
     bool mFirstRequest = false;
@@ -301,11 +303,23 @@
     Status initStatus() const;
 
     // Validate and import request's input buffer and acquire fence
-    Status importRequest(
+    virtual Status importRequest(
             const CaptureRequest& request,
             hidl_vec<buffer_handle_t*>& allBufPtrs,
             hidl_vec<int>& allFences);
 
+    Status importRequestImpl(
+            const CaptureRequest& request,
+            hidl_vec<buffer_handle_t*>& allBufPtrs,
+            hidl_vec<int>& allFences,
+            // Optional argument for ICameraDeviceSession@3.5 impl
+            bool allowEmptyBuf = false);
+
+    Status importBuffer(int32_t streamId,
+            uint64_t bufId, buffer_handle_t buf,
+            /*out*/buffer_handle_t** outBufPtr,
+            bool allowEmptyBuf);
+
     static void cleanupInflightFences(
             hidl_vec<int>& allFences, size_t numFences);
 
@@ -332,6 +346,11 @@
     static callbacks_process_capture_result_t sProcessCaptureResult;
     static callbacks_notify_t sNotify;
 
+    // By default camera service uses frameNumber/streamId pair to retrieve the buffer that
+    // was sent to HAL. Override this implementation if HAL is using buffers from buffer management
+    // APIs to send output buffer.
+    virtual uint64_t getCapResultBufferId(const buffer_handle_t& buf, int streamId);
+
     status_t constructCaptureResult(CaptureResult& result,
                                 const camera3_capture_result *hal_result);
 
diff --git a/camera/device/3.2/default/CameraDevice_3_2.h b/camera/device/3.2/default/CameraDevice_3_2.h
index 9534707..f474533 100644
--- a/camera/device/3.2/default/CameraDevice_3_2.h
+++ b/camera/device/3.2/default/CameraDevice_3_2.h
@@ -51,7 +51,7 @@
 /*
  * The camera device HAL implementation is opened lazily (via the open call)
  */
-struct CameraDevice : public ICameraDevice {
+struct CameraDevice : public virtual RefBase {
     // Called by provider HAL. Provider HAL must ensure the uniqueness of
     // CameraDevice object per cameraId, or there could be multiple CameraDevice
     // trying to access the same physical camera.
@@ -60,7 +60,14 @@
     CameraDevice(sp<CameraModule> module,
                  const std::string& cameraId,
                  const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames);
-    ~CameraDevice();
+    virtual ~CameraDevice();
+
+    // Retrieve the HIDL interface, split into its own class to avoid inheritance issues when
+    // dealing with minor version revs and simultaneous implementation and interface inheritance
+    virtual sp<ICameraDevice> getInterface() {
+        return new TrampolineDeviceInterface_3_2(this);
+    }
+
     // Caller must use this method to check if CameraDevice ctor failed
     bool isInitFailed() { return mInitFail; }
     // Used by provider HAL to signal external camera disconnected
@@ -68,16 +75,16 @@
 
     /* Methods from ::android::hardware::camera::device::V3_2::ICameraDevice follow. */
     // The following method can be called without opening the actual camera device
-    Return<void> getResourceCost(getResourceCost_cb _hidl_cb) override;
-    Return<void> getCameraCharacteristics(getCameraCharacteristics_cb _hidl_cb) override;
-    Return<Status> setTorchMode(TorchMode mode) override;
+    Return<void> getResourceCost(ICameraDevice::getResourceCost_cb _hidl_cb);
+    Return<void> getCameraCharacteristics(ICameraDevice::getCameraCharacteristics_cb _hidl_cb);
+    Return<Status> setTorchMode(TorchMode mode);
 
     // Open the device HAL and also return a default capture session
-    Return<void> open(const sp<ICameraDeviceCallback>& callback, open_cb _hidl_cb) override;
+    Return<void> open(const sp<ICameraDeviceCallback>& callback, ICameraDevice::open_cb _hidl_cb);
 
 
     // Forward the dump call to the opened session, or do nothing
-    Return<void> dumpState(const ::android::hardware::hidl_handle& fd) override;
+    Return<void> dumpState(const ::android::hardware::hidl_handle& fd);
     /* End of Methods from ::android::hardware::camera::device::V3_2::ICameraDevice */
 
 protected:
@@ -106,6 +113,39 @@
     static Status getHidlStatus(int);
 
     Status initStatus() const;
+
+private:
+    struct TrampolineDeviceInterface_3_2 : public ICameraDevice {
+        TrampolineDeviceInterface_3_2(sp<CameraDevice> parent) :
+            mParent(parent) {}
+
+        virtual Return<void> getResourceCost(V3_2::ICameraDevice::getResourceCost_cb _hidl_cb)
+                override {
+            return mParent->getResourceCost(_hidl_cb);
+        }
+
+        virtual Return<void> getCameraCharacteristics(
+                V3_2::ICameraDevice::getCameraCharacteristics_cb _hidl_cb) override {
+            return mParent->getCameraCharacteristics(_hidl_cb);
+        }
+
+        virtual Return<Status> setTorchMode(TorchMode mode) override {
+            return mParent->setTorchMode(mode);
+        }
+
+        virtual Return<void> open(const sp<V3_2::ICameraDeviceCallback>& callback,
+                V3_2::ICameraDevice::open_cb _hidl_cb) override {
+            return mParent->open(callback, _hidl_cb);
+        }
+
+        virtual Return<void> dumpState(const hidl_handle& fd) override {
+            return mParent->dumpState(fd);
+        }
+
+    private:
+        sp<CameraDevice> mParent;
+    };
+
 };
 
 }  // namespace implementation
diff --git a/camera/device/3.2/default/OWNERS b/camera/device/3.2/default/OWNERS
index 18acfee..369b204 100644
--- a/camera/device/3.2/default/OWNERS
+++ b/camera/device/3.2/default/OWNERS
@@ -1,6 +1,7 @@
 cychen@google.com
 epeev@google.com
 etalvala@google.com
+jchowdhary@google.com
 shuzhenwang@google.com
 yinchiayeh@google.com
 zhijunhe@google.com
diff --git a/camera/device/3.3/default/OWNERS b/camera/device/3.3/default/OWNERS
index 18acfee..369b204 100644
--- a/camera/device/3.3/default/OWNERS
+++ b/camera/device/3.3/default/OWNERS
@@ -1,6 +1,7 @@
 cychen@google.com
 epeev@google.com
 etalvala@google.com
+jchowdhary@google.com
 shuzhenwang@google.com
 yinchiayeh@google.com
 zhijunhe@google.com
diff --git a/camera/device/3.4/default/CameraDeviceSession.cpp b/camera/device/3.4/default/CameraDeviceSession.cpp
index f2e031c..e00b3f8 100644
--- a/camera/device/3.4/default/CameraDeviceSession.cpp
+++ b/camera/device/3.4/default/CameraDeviceSession.cpp
@@ -22,6 +22,7 @@
 #include <hardware/gralloc.h>
 #include <hardware/gralloc1.h>
 #include "CameraDeviceSession.h"
+#include "CameraModule.h"
 
 namespace android {
 namespace hardware {
@@ -30,6 +31,8 @@
 namespace V3_4 {
 namespace implementation {
 
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+
 CameraDeviceSession::CameraDeviceSession(
     camera3_device_t* device,
     const camera_metadata_t* deviceInfo,
@@ -54,31 +57,9 @@
 
     mResultBatcher_3_4.setNumPartialResults(mNumPartialResults);
 
-    camera_metadata_entry_t capabilities =
-            mDeviceInfo.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
-    bool isLogicalMultiCamera = false;
-    for (size_t i = 0; i < capabilities.count; i++) {
-        if (capabilities.data.u8[i] ==
-                ANDROID_REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA) {
-            isLogicalMultiCamera = true;
-            break;
-        }
-    }
-    if (isLogicalMultiCamera) {
-        camera_metadata_entry entry =
-                mDeviceInfo.find(ANDROID_LOGICAL_MULTI_CAMERA_PHYSICAL_IDS);
-        const uint8_t* ids = entry.data.u8;
-        size_t start = 0;
-        for (size_t i = 0; i < entry.count; ++i) {
-            if (ids[i] == '\0') {
-                if (start != i) {
-                    const char* physicalId = reinterpret_cast<const char*>(ids+start);
-                    mPhysicalCameraIds.emplace(physicalId);
-                }
-                start = i + 1;
-            }
-        }
-    }
+    // Parse and store current logical camera's physical ids.
+    (void)CameraModule::isLogicalMultiCamera(mDeviceInfo, &mPhysicalCameraIds);
+
 }
 
 CameraDeviceSession::~CameraDeviceSession() {
@@ -87,6 +68,14 @@
 Return<void> CameraDeviceSession::configureStreams_3_4(
         const StreamConfiguration& requestedConfiguration,
         ICameraDeviceSession::configureStreams_3_4_cb _hidl_cb)  {
+    configureStreams_3_4_Impl(requestedConfiguration, _hidl_cb);
+    return Void();
+}
+
+void CameraDeviceSession::configureStreams_3_4_Impl(
+        const StreamConfiguration& requestedConfiguration,
+        ICameraDeviceSession::configureStreams_3_4_cb _hidl_cb,
+        uint32_t streamConfigCounter)  {
     Status status = initStatus();
     HalStreamConfiguration outStreams;
 
@@ -97,7 +86,7 @@
                 ALOGE("%s: trying to configureStreams with physical camera id with V3.2 callback",
                         __FUNCTION__);
                 _hidl_cb(Status::INTERNAL_ERROR, outStreams);
-                return Void();
+                return;
             }
         }
     }
@@ -109,7 +98,7 @@
         ALOGE("%s: trying to configureStreams while there are still %zu inflight buffers!",
                 __FUNCTION__, mInflightBuffers.size());
         _hidl_cb(Status::INTERNAL_ERROR, outStreams);
-        return Void();
+        return;
     }
 
     if (!mInflightAETriggerOverrides.empty()) {
@@ -117,7 +106,7 @@
                 " trigger overrides!", __FUNCTION__,
                 mInflightAETriggerOverrides.size());
         _hidl_cb(Status::INTERNAL_ERROR, outStreams);
-        return Void();
+        return;
     }
 
     if (!mInflightRawBoostPresent.empty()) {
@@ -125,12 +114,12 @@
                 " boost overrides!", __FUNCTION__,
                 mInflightRawBoostPresent.size());
         _hidl_cb(Status::INTERNAL_ERROR, outStreams);
-        return Void();
+        return;
     }
 
     if (status != Status::OK) {
         _hidl_cb(status, outStreams);
-        return Void();
+        return;
     }
 
     const camera_metadata_t *paramBuffer = nullptr;
@@ -139,11 +128,14 @@
     }
 
     camera3_stream_configuration_t stream_list{};
+    // Block reading mStreamConfigCounter until configureStream returns
+    Mutex::Autolock _sccl(mStreamConfigCounterLock);
+    mStreamConfigCounter = streamConfigCounter;
     hidl_vec<camera3_stream_t*> streams;
     stream_list.session_parameters = paramBuffer;
     if (!preProcessConfigurationLocked_3_4(requestedConfiguration, &stream_list, &streams)) {
         _hidl_cb(Status::INTERNAL_ERROR, outStreams);
-        return Void();
+        return;
     }
 
     ATRACE_BEGIN("camera3->configure_streams");
@@ -168,7 +160,7 @@
     }
 
     _hidl_cb(status, outStreams);
-    return Void();
+    return;
 }
 
 bool CameraDeviceSession::preProcessConfigurationLocked_3_4(
diff --git a/camera/device/3.4/default/ExternalCameraDevice.cpp b/camera/device/3.4/default/ExternalCameraDevice.cpp
index e7361dd..0f23657 100644
--- a/camera/device/3.4/default/ExternalCameraDevice.cpp
+++ b/camera/device/3.4/default/ExternalCameraDevice.cpp
@@ -48,24 +48,31 @@
 } // anonymous namespace
 
 ExternalCameraDevice::ExternalCameraDevice(
-            const std::string& cameraId, const ExternalCameraConfig& cfg) :
+        const std::string& cameraId, const ExternalCameraConfig& cfg) :
         mCameraId(cameraId),
-        mCfg(cfg) {
-
-    status_t ret = initCameraCharacteristics();
-    if (ret != OK) {
-        ALOGE("%s: init camera characteristics failed: errorno %d", __FUNCTION__, ret);
-        mInitFailed = true;
-    }
-}
+        mCfg(cfg) {}
 
 ExternalCameraDevice::~ExternalCameraDevice() {}
 
 bool ExternalCameraDevice::isInitFailed() {
+    Mutex::Autolock _l(mLock);
+    return isInitFailedLocked();
+}
+
+bool ExternalCameraDevice::isInitFailedLocked() {
+    if (!mInitialized) {
+        status_t ret = initCameraCharacteristics();
+        if (ret != OK) {
+            ALOGE("%s: init camera characteristics failed: errorno %d", __FUNCTION__, ret);
+            mInitFailed = true;
+        }
+        mInitialized = true;
+    }
     return mInitFailed;
 }
 
-Return<void> ExternalCameraDevice::getResourceCost(getResourceCost_cb _hidl_cb) {
+Return<void> ExternalCameraDevice::getResourceCost(
+        ICameraDevice::getResourceCost_cb _hidl_cb) {
     CameraResourceCost resCost;
     resCost.resourceCost = 100;
     _hidl_cb(Status::OK, resCost);
@@ -73,11 +80,11 @@
 }
 
 Return<void> ExternalCameraDevice::getCameraCharacteristics(
-        getCameraCharacteristics_cb _hidl_cb) {
+        ICameraDevice::getCameraCharacteristics_cb _hidl_cb) {
     Mutex::Autolock _l(mLock);
     V3_2::CameraMetadata hidlChars;
 
-    if (isInitFailed()) {
+    if (isInitFailedLocked()) {
         _hidl_cb(Status::INTERNAL_ERROR, hidlChars);
         return Void();
     }
@@ -94,7 +101,7 @@
 }
 
 Return<void> ExternalCameraDevice::open(
-        const sp<ICameraDeviceCallback>& callback, open_cb _hidl_cb) {
+        const sp<ICameraDeviceCallback>& callback, ICameraDevice::open_cb _hidl_cb) {
     Status status = Status::OK;
     sp<ExternalCameraDeviceSession> session = nullptr;
 
@@ -143,7 +150,7 @@
         }
     }
 
-    session = new ExternalCameraDeviceSession(
+    session = createSession(
             callback, mCfg, mSupportedFormats, mCroppingType,
             mCameraCharacteristics, mCameraId, std::move(fd));
     if (session == nullptr) {
@@ -371,8 +378,12 @@
     const uint8_t timestampSource = ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN;
     UPDATE(ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE, &timestampSource, 1);
 
-    // Orientation probably isn't useful for external facing camera?
-    const int32_t orientation = 0;
+    // Orientation is a bit odd for external camera, but consider it as the orientation
+    // between the external camera sensor (which is usually landscape) and the device's
+    // natural display orientation. For devices with natural landscape display (ex: tablet/TV), the
+    // orientation should be 0. For devices with natural portrait display (phone), the orientation
+    // should be 270.
+    const int32_t orientation = mCfg.orientation;
     UPDATE(ANDROID_SENSOR_ORIENTATION, &orientation, 1);
 
     // android.shading
@@ -479,52 +490,9 @@
     UPDATE(ANDROID_REQUEST_AVAILABLE_RESULT_KEYS, availableResultKeys,
            ARRAY_SIZE(availableResultKeys));
 
-    const int32_t availableCharacteristicsKeys[] = {
-        ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
-        ANDROID_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES,
-        ANDROID_CONTROL_AE_AVAILABLE_MODES,
-        ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES,
-        ANDROID_CONTROL_AE_COMPENSATION_RANGE,
-        ANDROID_CONTROL_AE_COMPENSATION_STEP,
-        ANDROID_CONTROL_AE_LOCK_AVAILABLE,
-        ANDROID_CONTROL_AF_AVAILABLE_MODES,
-        ANDROID_CONTROL_AVAILABLE_EFFECTS,
-        ANDROID_CONTROL_AVAILABLE_MODES,
-        ANDROID_CONTROL_AVAILABLE_SCENE_MODES,
-        ANDROID_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES,
-        ANDROID_CONTROL_AWB_AVAILABLE_MODES,
-        ANDROID_CONTROL_AWB_LOCK_AVAILABLE,
-        ANDROID_CONTROL_MAX_REGIONS,
-        ANDROID_FLASH_INFO_AVAILABLE,
-        ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL,
-        ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
-        ANDROID_LENS_FACING,
-        ANDROID_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
-        ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION,
-        ANDROID_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES,
-        ANDROID_REQUEST_AVAILABLE_CAPABILITIES,
-        ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS,
-        ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
-        ANDROID_REQUEST_PARTIAL_RESULT_COUNT,
-        ANDROID_REQUEST_PIPELINE_MAX_DEPTH,
-        ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
-        ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
-        ANDROID_SCALER_CROPPING_TYPE,
-        ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
-        ANDROID_SENSOR_INFO_MAX_FRAME_DURATION,
-        ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
-        ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE,
-        ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE,
-        ANDROID_SENSOR_ORIENTATION,
-        ANDROID_SHADING_AVAILABLE_MODES,
-        ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
-        ANDROID_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES,
-        ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES,
-        ANDROID_STATISTICS_INFO_MAX_FACE_COUNT,
-        ANDROID_SYNC_MAX_LATENCY};
     UPDATE(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS,
-           availableCharacteristicsKeys,
-           ARRAY_SIZE(availableCharacteristicsKeys));
+           AVAILABLE_CHARACTERISTICS_KEYS_3_4.data(),
+           AVAILABLE_CHARACTERISTICS_KEYS_3_4.size());
 
     return OK;
 }
@@ -931,6 +899,18 @@
     }
 }
 
+sp<ExternalCameraDeviceSession> ExternalCameraDevice::createSession(
+        const sp<ICameraDeviceCallback>& cb,
+        const ExternalCameraConfig& cfg,
+        const std::vector<SupportedV4L2Format>& sortedFormats,
+        const CroppingType& croppingType,
+        const common::V1_0::helper::CameraMetadata& chars,
+        const std::string& cameraId,
+        unique_fd v4l2Fd) {
+    return new ExternalCameraDeviceSession(
+            cb, cfg, sortedFormats, croppingType, chars, cameraId, std::move(v4l2Fd));
+}
+
 }  // namespace implementation
 }  // namespace V3_4
 }  // namespace device
diff --git a/camera/device/3.4/default/ExternalCameraDeviceSession.cpp b/camera/device/3.4/default/ExternalCameraDeviceSession.cpp
index dce40ff..66b17db 100644
--- a/camera/device/3.4/default/ExternalCameraDeviceSession.cpp
+++ b/camera/device/3.4/default/ExternalCameraDeviceSession.cpp
@@ -81,6 +81,8 @@
     return locked;
 }
 
+buffer_handle_t sEmptyBuffer = nullptr;
+
 } // Anonymous namespace
 
 // Static instances
@@ -103,11 +105,8 @@
         mCroppingType(croppingType),
         mCameraId(cameraId),
         mV4l2Fd(std::move(v4l2Fd)),
-        mOutputThread(new OutputThread(this, mCroppingType)),
         mMaxThumbResolution(getMaxThumbResolution()),
-        mMaxJpegResolution(getMaxJpegResolution()) {
-    mInitFail = initialize();
-}
+        mMaxJpegResolution(getMaxJpegResolution()) {}
 
 bool ExternalCameraDeviceSession::initialize() {
     if (mV4l2Fd.get() < 0) {
@@ -142,6 +141,12 @@
             model = card;
         }
     }
+
+    initOutputThread();
+    if (mOutputThread == nullptr) {
+        ALOGE("%s: init OutputThread failed!", __FUNCTION__);
+        return true;
+    }
     mOutputThread->setExifMakeModel(make, model);
 
     status_t status = initDefaultRequests();
@@ -168,6 +173,32 @@
     return false;
 }
 
+bool ExternalCameraDeviceSession::isInitFailed() {
+    Mutex::Autolock _l(mLock);
+    if (!mInitialized) {
+        mInitFail = initialize();
+        mInitialized = true;
+    }
+    return mInitFail;
+}
+
+void ExternalCameraDeviceSession::initOutputThread() {
+    mOutputThread = new OutputThread(this, mCroppingType);
+}
+
+void ExternalCameraDeviceSession::closeOutputThread() {
+    closeOutputThreadImpl();
+}
+
+void ExternalCameraDeviceSession::closeOutputThreadImpl() {
+    if (mOutputThread) {
+        mOutputThread->flush();
+        mOutputThread->requestExit();
+        mOutputThread->join();
+        mOutputThread.clear();
+    }
+}
+
 Status ExternalCameraDeviceSession::initStatus() const {
     Mutex::Autolock _l(mLock);
     Status status = Status::OK;
@@ -181,7 +212,7 @@
 ExternalCameraDeviceSession::~ExternalCameraDeviceSession() {
     if (!isClosed()) {
         ALOGE("ExternalCameraDeviceSession deleted before close!");
-        close();
+        close(/*callerIsDtor*/true);
     }
 }
 
@@ -344,17 +375,31 @@
         ICameraDeviceSession::configureStreams_3_4_cb _hidl_cb)  {
     V3_2::StreamConfiguration config_v32;
     V3_3::HalStreamConfiguration outStreams_v33;
+    V3_4::HalStreamConfiguration outStreams;
     Mutex::Autolock _il(mInterfaceLock);
 
     config_v32.operationMode = requestedConfiguration.operationMode;
     config_v32.streams.resize(requestedConfiguration.streams.size());
+    uint32_t blobBufferSize = 0;
+    int numStallStream = 0;
     for (size_t i = 0; i < config_v32.streams.size(); i++) {
         config_v32.streams[i] = requestedConfiguration.streams[i].v3_2;
+        if (config_v32.streams[i].format == PixelFormat::BLOB) {
+            blobBufferSize = requestedConfiguration.streams[i].bufferSize;
+            numStallStream++;
+        }
     }
 
-    Status status = configureStreams(config_v32, &outStreams_v33);
+    // Fail early if there are multiple BLOB streams
+    if (numStallStream > kMaxStallStream) {
+        ALOGE("%s: too many stall streams (expect <= %d, got %d)", __FUNCTION__,
+                kMaxStallStream, numStallStream);
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, outStreams);
+        return Void();
+    }
 
-    V3_4::HalStreamConfiguration outStreams;
+    Status status = configureStreams(config_v32, &outStreams_v33, blobBufferSize);
+
     outStreams.streams.resize(outStreams_v33.streams.size());
     for (size_t i = 0; i < outStreams.streams.size(); i++) {
         outStreams.streams[i].v3_3 = outStreams_v33.streams[i];
@@ -428,18 +473,23 @@
     return Status::OK;
 }
 
-Return<void> ExternalCameraDeviceSession::close() {
+Return<void> ExternalCameraDeviceSession::close(bool callerIsDtor) {
     Mutex::Autolock _il(mInterfaceLock);
     bool closed = isClosed();
     if (!closed) {
-        mOutputThread->flush();
-        mOutputThread->requestExit();
-        mOutputThread->join();
+        if (callerIsDtor) {
+            closeOutputThreadImpl();
+        } else {
+            closeOutputThread();
+        }
 
         Mutex::Autolock _l(mLock);
         // free all buffers
-        for(auto pair : mStreamMap) {
-            cleanupBuffersLocked(/*Stream ID*/pair.first);
+        {
+            Mutex::Autolock _l(mCbsLock);
+            for(auto pair : mStreamMap) {
+                cleanupBuffersLocked(/*Stream ID*/pair.first);
+            }
         }
         v4l2StreamOffLocked();
         ALOGV("%s: closing V4L2 camera FD %d", __FUNCTION__, mV4l2Fd.get());
@@ -449,10 +499,61 @@
     return Void();
 }
 
-Status ExternalCameraDeviceSession::importRequest(
+Status ExternalCameraDeviceSession::importRequestLocked(
+    const CaptureRequest& request,
+    hidl_vec<buffer_handle_t*>& allBufPtrs,
+    hidl_vec<int>& allFences) {
+    return importRequestLockedImpl(request, allBufPtrs, allFences);
+}
+
+Status ExternalCameraDeviceSession::importBuffer(int32_t streamId,
+        uint64_t bufId, buffer_handle_t buf,
+        /*out*/buffer_handle_t** outBufPtr,
+        bool allowEmptyBuf) {
+    Mutex::Autolock _l(mCbsLock);
+    return importBufferLocked(streamId, bufId, buf, outBufPtr, allowEmptyBuf);
+}
+
+Status ExternalCameraDeviceSession::importBufferLocked(int32_t streamId,
+        uint64_t bufId, buffer_handle_t buf,
+        /*out*/buffer_handle_t** outBufPtr,
+        bool allowEmptyBuf) {
+
+    if (buf == nullptr && bufId == BUFFER_ID_NO_BUFFER) {
+        if (allowEmptyBuf) {
+            *outBufPtr = &sEmptyBuffer;
+            return Status::OK;
+        } else {
+            ALOGE("%s: bufferId %" PRIu64 " has null buffer handle!", __FUNCTION__, bufId);
+            return Status::ILLEGAL_ARGUMENT;
+        }
+    }
+
+    CirculatingBuffers& cbs = mCirculatingBuffers[streamId];
+    if (cbs.count(bufId) == 0) {
+        if (buf == nullptr) {
+            ALOGE("%s: bufferId %" PRIu64 " has null buffer handle!", __FUNCTION__, bufId);
+            return Status::ILLEGAL_ARGUMENT;
+        }
+        // Register a newly seen buffer
+        buffer_handle_t importedBuf = buf;
+        sHandleImporter.importBuffer(importedBuf);
+        if (importedBuf == nullptr) {
+            ALOGE("%s: output buffer for stream %d is invalid!", __FUNCTION__, streamId);
+            return Status::INTERNAL_ERROR;
+        } else {
+            cbs[bufId] = importedBuf;
+        }
+    }
+    *outBufPtr = &cbs[bufId];
+    return Status::OK;
+}
+
+Status ExternalCameraDeviceSession::importRequestLockedImpl(
         const CaptureRequest& request,
         hidl_vec<buffer_handle_t*>& allBufPtrs,
-        hidl_vec<int>& allFences) {
+        hidl_vec<int>& allFences,
+        bool allowEmptyBuf) {
     size_t numOutputBufs = request.outputBuffers.size();
     size_t numBufs = numOutputBufs;
     // Validate all I/O buffers
@@ -471,26 +572,17 @@
         streamIds[i] = request.outputBuffers[i].streamId;
     }
 
-    for (size_t i = 0; i < numBufs; i++) {
-        buffer_handle_t buf = allBufs[i];
-        uint64_t bufId = allBufIds[i];
-        CirculatingBuffers& cbs = mCirculatingBuffers[streamIds[i]];
-        if (cbs.count(bufId) == 0) {
-            if (buf == nullptr) {
-                ALOGE("%s: bufferId %" PRIu64 " has null buffer handle!", __FUNCTION__, bufId);
-                return Status::ILLEGAL_ARGUMENT;
-            }
-            // Register a newly seen buffer
-            buffer_handle_t importedBuf = buf;
-            sHandleImporter.importBuffer(importedBuf);
-            if (importedBuf == nullptr) {
-                ALOGE("%s: output buffer %zu is invalid!", __FUNCTION__, i);
-                return Status::INTERNAL_ERROR;
-            } else {
-                cbs[bufId] = importedBuf;
+    {
+        Mutex::Autolock _l(mCbsLock);
+        for (size_t i = 0; i < numBufs; i++) {
+            Status st = importBufferLocked(
+                    streamIds[i], allBufIds[i], allBufs[i], &allBufPtrs[i],
+                    allowEmptyBuf);
+            if (st != Status::OK) {
+                // Detailed error logs printed in importBuffer
+                return st;
             }
         }
-        allBufPtrs[i] = &cbs[bufId];
     }
 
     // All buffers are imported. Now validate output buffer acquire fences
@@ -638,7 +730,7 @@
         }
     }
 
-    status = importRequest(request, allBufPtrs, allFences);
+    status = importRequestLocked(request, allBufPtrs, allFences);
     if (status != Status::OK) {
         return status;
     }
@@ -761,9 +853,11 @@
         result.outputBuffers[i].bufferId = req->buffers[i].bufferId;
         if (req->buffers[i].fenceTimeout) {
             result.outputBuffers[i].status = BufferStatus::ERROR;
-            native_handle_t* handle = native_handle_create(/*numFds*/1, /*numInts*/0);
-            handle->data[0] = req->buffers[i].acquireFence;
-            result.outputBuffers[i].releaseFence.setTo(handle, /*shouldOwn*/false);
+            if (req->buffers[i].acquireFence > 0) {
+                native_handle_t* handle = native_handle_create(/*numFds*/1, /*numInts*/0);
+                handle->data[0] = req->buffers[i].acquireFence;
+                result.outputBuffers[i].releaseFence.setTo(handle, /*shouldOwn*/false);
+            }
             notifyError(req->frameNumber, req->buffers[i].streamId, ErrorCode::ERROR_BUFFER);
         } else {
             result.outputBuffers[i].status = BufferStatus::OK;
@@ -1592,8 +1686,9 @@
      * main image needs to hold APP1, headers, and at most a poorly
      * compressed image */
     const ssize_t maxThumbCodeSize = 64 * 1024;
-    const ssize_t maxJpegCodeSize = parent->getJpegBufferSize(jpegSize.width,
-                                                             jpegSize.height);
+    const ssize_t maxJpegCodeSize = mBlobBufferSize == 0 ?
+            parent->getJpegBufferSize(jpegSize.width, jpegSize.height) :
+            mBlobBufferSize;
 
     /* Check that getJpegBufferSize did not return an error */
     if (maxJpegCodeSize < 0) {
@@ -1732,6 +1827,12 @@
                 (req->frameIn->mFourcc >> 24) & 0xFF);
     }
 
+    int res = requestBufferStart(req->buffers);
+    if (res != 0) {
+        ALOGE("%s: send BufferRequest failed! res %d", __FUNCTION__, res);
+        return onDeviceError("%s: failed to send buffer request!", __FUNCTION__);
+    }
+
     std::unique_lock<std::mutex> lk(mBufferLock);
     // Convert input V4L2 frame to YU12 of the same size
     // TODO: see if we can save some computation by converting to YV12 here
@@ -1744,7 +1845,7 @@
 
     // TODO: in some special case maybe we can decode jpg directly to gralloc output?
     ATRACE_BEGIN("MJPGtoI420");
-    int res = libyuv::MJPGToI420(
+    res = libyuv::MJPGToI420(
             inData, inDataSize,
             static_cast<uint8_t*>(mYu12FrameLayout.y),
             mYu12FrameLayout.yStride,
@@ -1768,10 +1869,23 @@
         return true;
     }
 
+    ATRACE_BEGIN("Wait for BufferRequest done");
+    res = waitForBufferRequestDone(&req->buffers);
+    ATRACE_END();
+
+    if (res != 0) {
+        ALOGE("%s: wait for BufferRequest done failed! res %d", __FUNCTION__, res);
+        lk.unlock();
+        return onDeviceError("%s: failed to process buffer request error!", __FUNCTION__);
+    }
+
     ALOGV("%s processing new request", __FUNCTION__);
     const int kSyncWaitTimeoutMs = 500;
     for (auto& halBuf : req->buffers) {
-        if (halBuf.acquireFence != -1) {
+        if (*(halBuf.bufPtr) == nullptr) {
+            ALOGW("%s: buffer for stream %d missing", __FUNCTION__, halBuf.streamId);
+            halBuf.fenceTimeout = true;
+        } else if (halBuf.acquireFence != -1) {
             int ret = sync_wait(halBuf.acquireFence, kSyncWaitTimeoutMs);
             if (ret) {
                 halBuf.fenceTimeout = true;
@@ -1859,7 +1973,8 @@
 
 Status ExternalCameraDeviceSession::OutputThread::allocateIntermediateBuffers(
         const Size& v4lSize, const Size& thumbSize,
-        const hidl_vec<Stream>& streams) {
+        const hidl_vec<Stream>& streams,
+        uint32_t blobBufferSize) {
     std::lock_guard<std::mutex> lk(mBufferLock);
     if (mScaledYu12Frames.size() != 0) {
         ALOGE("%s: intermediate buffer pool has %zu inflight buffers! (expect 0)",
@@ -1928,6 +2043,8 @@
             it = mIntermediateBuffers.erase(it);
         }
     }
+
+    mBlobBufferSize = blobBufferSize;
     return Status::OK;
 }
 
@@ -2027,7 +2144,7 @@
 }
 
 void ExternalCameraDeviceSession::updateBufferCaches(const hidl_vec<BufferCache>& cachesToRemove) {
-    Mutex::Autolock _l(mLock);
+    Mutex::Autolock _l(mCbsLock);
     for (auto& cache : cachesToRemove) {
         auto cbsIt = mCirculatingBuffers.find(cache.streamId);
         if (cbsIt == mCirculatingBuffers.end()) {
@@ -2046,7 +2163,8 @@
     }
 }
 
-bool ExternalCameraDeviceSession::isSupported(const Stream& stream) {
+bool ExternalCameraDeviceSession::isSupported(const Stream& stream,
+        const std::vector<SupportedV4L2Format>& supportedFormats) {
     int32_t ds = static_cast<int32_t>(stream.dataSpace);
     PixelFormat fmt = stream.format;
     uint32_t width = stream.width;
@@ -2089,7 +2207,7 @@
     // Assume we can convert any V4L2 format to any of supported output format for now, i.e,
     // ignoring v4l2Fmt.fourcc for now. Might need more subtle check if we support more v4l format
     // in the futrue.
-    for (const auto& v4l2Fmt : mSupportedFormats) {
+    for (const auto& v4l2Fmt : supportedFormats) {
         if (width == v4l2Fmt.width && height == v4l2Fmt.height) {
             return true;
         }
@@ -2424,9 +2542,9 @@
     mV4L2BufferReturned.notify_one();
 }
 
-Status ExternalCameraDeviceSession::configureStreams(
-        const V3_2::StreamConfiguration& config, V3_3::HalStreamConfiguration* out) {
-    ATRACE_CALL();
+Status ExternalCameraDeviceSession::isStreamCombinationSupported(
+        const V3_2::StreamConfiguration& config,
+        const std::vector<SupportedV4L2Format>& supportedFormats) {
     if (config.operationMode != StreamConfigurationMode::NORMAL_MODE) {
         ALOGE("%s: unsupported operation mode: %d", __FUNCTION__, config.operationMode);
         return Status::ILLEGAL_ARGUMENT;
@@ -2441,7 +2559,7 @@
     int numStallStream = 0;
     for (const auto& stream : config.streams) {
         // Check if the format/width/height combo is supported
-        if (!isSupported(stream)) {
+        if (!isSupported(stream, supportedFormats)) {
             return Status::ILLEGAL_ARGUMENT;
         }
         if (stream.format == PixelFormat::BLOB) {
@@ -2463,7 +2581,21 @@
         return Status::ILLEGAL_ARGUMENT;
     }
 
-    Status status = initStatus();
+    return Status::OK;
+}
+
+Status ExternalCameraDeviceSession::configureStreams(
+        const V3_2::StreamConfiguration& config,
+        V3_3::HalStreamConfiguration* out,
+        uint32_t blobBufferSize) {
+    ATRACE_CALL();
+
+    Status status = isStreamCombinationSupported(config, mSupportedFormats);
+    if (status != Status::OK) {
+        return status;
+    }
+
+    status = initStatus();
     if (status != Status::OK) {
         return status;
     }
@@ -2479,30 +2611,33 @@
     }
 
     Mutex::Autolock _l(mLock);
-    // Add new streams
-    for (const auto& stream : config.streams) {
-        if (mStreamMap.count(stream.id) == 0) {
-            mStreamMap[stream.id] = stream;
-            mCirculatingBuffers.emplace(stream.id, CirculatingBuffers{});
-        }
-    }
-
-    // Cleanup removed streams
-    for(auto it = mStreamMap.begin(); it != mStreamMap.end();) {
-        int id = it->first;
-        bool found = false;
+    {
+        Mutex::Autolock _l(mCbsLock);
+        // Add new streams
         for (const auto& stream : config.streams) {
-            if (id == stream.id) {
-                found = true;
-                break;
+            if (mStreamMap.count(stream.id) == 0) {
+                mStreamMap[stream.id] = stream;
+                mCirculatingBuffers.emplace(stream.id, CirculatingBuffers{});
             }
         }
-        if (!found) {
-            // Unmap all buffers of deleted stream
-            cleanupBuffersLocked(id);
-            it = mStreamMap.erase(it);
-        } else {
-            ++it;
+
+        // Cleanup removed streams
+        for(auto it = mStreamMap.begin(); it != mStreamMap.end();) {
+            int id = it->first;
+            bool found = false;
+            for (const auto& stream : config.streams) {
+                if (id == stream.id) {
+                    found = true;
+                    break;
+                }
+            }
+            if (!found) {
+                // Unmap all buffers of deleted stream
+                cleanupBuffersLocked(id);
+                it = mStreamMap.erase(it);
+            } else {
+                ++it;
+            }
         }
     }
 
@@ -2587,7 +2722,7 @@
     }
 
     status = mOutputThread->allocateIntermediateBuffers(v4lSize,
-                mMaxThumbResolution, config.streams);
+                mMaxThumbResolution, config.streams, blobBufferSize);
     if (status != Status::OK) {
         ALOGE("%s: allocating intermediate buffers failed!", __FUNCTION__);
         return status;
diff --git a/camera/device/3.4/default/ExternalCameraUtils.cpp b/camera/device/3.4/default/ExternalCameraUtils.cpp
index 680c95a..0941052 100644
--- a/camera/device/3.4/default/ExternalCameraUtils.cpp
+++ b/camera/device/3.4/default/ExternalCameraUtils.cpp
@@ -160,9 +160,11 @@
 namespace common {
 
 namespace {
-    const int  kDefaultJpegBufSize = 5 << 20; // 5MB
-    const int  kDefaultNumVideoBuffer = 4;
-    const int  kDefaultNumStillBuffer = 2;
+    const int kDefaultJpegBufSize = 5 << 20; // 5MB
+    const int kDefaultNumVideoBuffer = 4;
+    const int kDefaultNumStillBuffer = 2;
+    const int kDefaultOrientation = 0; // suitable for natural landscape displays like tablet/TV
+                                       // For phone devices 270 is better
 } // anonymous namespace
 
 const char* ExternalCameraConfig::kDefaultCfgPath = "/vendor/etc/external_camera_config.xml";
@@ -276,10 +278,17 @@
                 minStreamSize->UnsignedAttribute("height", /*Default*/0)};
     }
 
+    XMLElement *orientation = deviceCfg->FirstChildElement("Orientation");
+    if (orientation == nullptr) {
+        ALOGI("%s: no sensor orientation specified", __FUNCTION__);
+    } else {
+        ret.orientation = orientation->IntAttribute("degree", /*Default*/kDefaultOrientation);
+    }
+
     ALOGI("%s: external camera cfg loaded: maxJpgBufSize %d,"
-            " num video buffers %d, num still buffers %d",
+            " num video buffers %d, num still buffers %d, orientation %d",
             __FUNCTION__, ret.maxJpegBufSize,
-            ret.numVideoBuffers, ret.numStillBuffers);
+            ret.numVideoBuffers, ret.numStillBuffers, ret.orientation);
     for (const auto& limit : ret.fpsLimits) {
         ALOGI("%s: fpsLimitList: %dx%d@%f", __FUNCTION__,
                 limit.size.width, limit.size.height, limit.fpsUpperBound);
@@ -292,7 +301,8 @@
 ExternalCameraConfig::ExternalCameraConfig() :
         maxJpegBufSize(kDefaultJpegBufSize),
         numVideoBuffers(kDefaultNumVideoBuffer),
-        numStillBuffers(kDefaultNumStillBuffer) {
+        numStillBuffers(kDefaultNumStillBuffer),
+        orientation(kDefaultOrientation) {
     fpsLimits.push_back({/*Size*/{ 640,  480}, /*FPS upper bound*/30.0});
     fpsLimits.push_back({/*Size*/{1280,  720}, /*FPS upper bound*/7.5});
     fpsLimits.push_back({/*Size*/{1920, 1080}, /*FPS upper bound*/5.0});
diff --git a/camera/device/3.4/default/OWNERS b/camera/device/3.4/default/OWNERS
index 18acfee..369b204 100644
--- a/camera/device/3.4/default/OWNERS
+++ b/camera/device/3.4/default/OWNERS
@@ -1,6 +1,7 @@
 cychen@google.com
 epeev@google.com
 etalvala@google.com
+jchowdhary@google.com
 shuzhenwang@google.com
 yinchiayeh@google.com
 zhijunhe@google.com
diff --git a/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h b/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h
index fdc8a5a..1db7b41 100644
--- a/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h
+++ b/camera/device/3.4/default/include/device_v3_4_impl/CameraDeviceSession.h
@@ -87,6 +87,12 @@
     void postProcessConfigurationFailureLocked_3_4(
             const StreamConfiguration& requestedConfiguration);
 
+    void configureStreams_3_4_Impl(
+            const StreamConfiguration& requestedConfiguration,
+            ICameraDeviceSession::configureStreams_3_4_cb _hidl_cb,
+            // Optional argument for ICameraDeviceSession@3.5 impl
+            uint32_t streamConfigCounter = 0);
+
     Return<void> processCaptureRequest_3_4(
             const hidl_vec<V3_4::CaptureRequest>& requests,
             const hidl_vec<V3_2::BufferCache>& cachesToRemove,
@@ -117,6 +123,10 @@
     // Physical camera ids for the logical multi-camera. Empty if this
     // is not a logical multi-camera.
     std::unordered_set<std::string> mPhysicalCameraIds;
+
+    Mutex    mStreamConfigCounterLock;
+    uint32_t mStreamConfigCounter = 1;
+
 private:
 
     struct TrampolineSessionInterface_3_4 : public ICameraDeviceSession {
diff --git a/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDeviceSession.h b/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDeviceSession.h
index 0b94c11..9cc55cb 100644
--- a/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDeviceSession.h
+++ b/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDeviceSession.h
@@ -97,7 +97,7 @@
     // Call by CameraDevice to dump active device states
     void dumpState(const native_handle_t*);
     // Caller must use this method to check if CameraDeviceSession ctor failed
-    bool isInitFailed() { return mInitFail; }
+    bool isInitFailed();
     bool isClosed();
 
     // Retrieve the HIDL interface, split into its own class to avoid inheritance issues when
@@ -134,7 +134,7 @@
             ICameraDeviceSession::processCaptureRequest_cb);
 
     Return<Status> flush();
-    Return<void> close();
+    Return<void> close(bool callerIsDtor = false);
 
     Return<void> configureStreams_3_3(
             const V3_2::StreamConfiguration&,
@@ -170,32 +170,63 @@
         std::vector<HalStreamBuffer> buffers;
     };
 
+    static const uint64_t BUFFER_ID_NO_BUFFER = 0;
+
     Status constructDefaultRequestSettingsRaw(RequestTemplate type,
             V3_2::CameraMetadata *outMetadata);
 
     bool initialize();
+    // To init/close different version of output thread
+    virtual void initOutputThread();
+    virtual void closeOutputThread();
+    void closeOutputThreadImpl();
+
     Status initStatus() const;
     status_t initDefaultRequests();
     status_t fillCaptureResult(common::V1_0::helper::CameraMetadata& md, nsecs_t timestamp);
-    Status configureStreams(const V3_2::StreamConfiguration&, V3_3::HalStreamConfiguration* out);
+    Status configureStreams(const V3_2::StreamConfiguration&,
+            V3_3::HalStreamConfiguration* out,
+            // Only filled by configureStreams_3_4, and only one blob stream supported
+            uint32_t blobBufferSize = 0);
     // fps = 0.0 means default, which is
     // slowest fps that is at least 30, or fastest fps if 30 is not supported
     int configureV4l2StreamLocked(const SupportedV4L2Format& fmt, double fps = 0.0);
     int v4l2StreamOffLocked();
     int setV4l2FpsLocked(double fps);
+    static Status isStreamCombinationSupported(const V3_2::StreamConfiguration& config,
+            const std::vector<SupportedV4L2Format>& supportedFormats);
 
     // TODO: change to unique_ptr for better tracking
     sp<V4L2Frame> dequeueV4l2FrameLocked(/*out*/nsecs_t* shutterTs); // Called with mLock hold
     void enqueueV4l2Frame(const sp<V4L2Frame>&);
 
     // Check if input Stream is one of supported stream setting on this device
-    bool isSupported(const Stream&);
+    static bool isSupported(const Stream& stream,
+            const std::vector<SupportedV4L2Format>& supportedFormats);
 
     // Validate and import request's output buffers and acquire fence
-    Status importRequest(
+    virtual Status importRequestLocked(
             const CaptureRequest& request,
             hidl_vec<buffer_handle_t*>& allBufPtrs,
             hidl_vec<int>& allFences);
+
+    Status importRequestLockedImpl(
+            const CaptureRequest& request,
+            hidl_vec<buffer_handle_t*>& allBufPtrs,
+            hidl_vec<int>& allFences,
+            // Optional argument for ICameraDeviceSession@3.5 impl
+            bool allowEmptyBuf = false);
+
+    Status importBuffer(int32_t streamId,
+            uint64_t bufId, buffer_handle_t buf,
+            /*out*/buffer_handle_t** outBufPtr,
+            bool allowEmptyBuf);
+
+    Status importBufferLocked(int32_t streamId,
+            uint64_t bufId, buffer_handle_t buf,
+            /*out*/buffer_handle_t** outBufPtr,
+            bool allowEmptyBuf);
+
     static void cleanupInflightFences(
             hidl_vec<int>& allFences, size_t numFences);
     void cleanupBuffersLocked(int id);
@@ -221,18 +252,26 @@
     class OutputThread : public android::Thread {
     public:
         OutputThread(wp<ExternalCameraDeviceSession> parent, CroppingType);
-        ~OutputThread();
+        virtual ~OutputThread();
 
         Status allocateIntermediateBuffers(
                 const Size& v4lSize, const Size& thumbSize,
-                const hidl_vec<Stream>& streams);
+                const hidl_vec<Stream>& streams,
+                uint32_t blobBufferSize);
         Status submitRequest(const std::shared_ptr<HalRequest>&);
         void flush();
         void dump(int fd);
         virtual bool threadLoop() override;
 
         void setExifMakeModel(const std::string& make, const std::string& model);
-    private:
+
+    protected:
+        // Methods to request output buffer in parallel
+        // No-op for device@3.4. Implemented in device@3.5
+        virtual int requestBufferStart(const std::vector<HalStreamBuffer>&) { return 0; }
+        virtual int waitForBufferRequestDone(
+                /*out*/std::vector<HalStreamBuffer>*) { return 0; }
+
         static const uint32_t FLEX_YUV_GENERIC = static_cast<uint32_t>('F') |
                 static_cast<uint32_t>('L') << 8 | static_cast<uint32_t>('E') << 16 |
                 static_cast<uint32_t>('X') << 24;
@@ -289,6 +328,7 @@
         std::unordered_map<Size, sp<AllocatedFrame>, SizeHasher> mScaledYu12Frames;
         YCbCrLayout mYu12FrameLayout;
         YCbCrLayout mYu12ThumbFrameLayout;
+        uint32_t mBlobBufferSize = 0; // 0 -> HAL derive buffer size, else: use given size
 
         std::string mExifMake;
         std::string mExifModel;
@@ -314,6 +354,7 @@
     //    - init failed
     //    - camera disconnected
     bool mClosed = false;
+    bool mInitialized = false;
     bool mInitFail = false;
     bool mFirstRequest = false;
     common::V1_0::helper::CameraMetadata mLatestReqSetting;
@@ -346,6 +387,8 @@
     typedef std::unordered_map<uint64_t, buffer_handle_t> CirculatingBuffers;
     // Stream ID -> circulating buffers map
     std::map<int, CirculatingBuffers> mCirculatingBuffers;
+    // Protect mCirculatingBuffers, must not lock mLock after acquiring this lock
+    mutable Mutex mCbsLock;
 
     std::mutex mAfTriggerLock; // protect mAfTrigger
     bool mAfTrigger = false;
diff --git a/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDevice_3_4.h b/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDevice_3_4.h
index ff0cfb3..719a3ed 100644
--- a/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDevice_3_4.h
+++ b/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraDevice_3_4.h
@@ -25,6 +25,8 @@
 #include <hidl/MQDescriptor.h>
 #include "ExternalCameraDeviceSession.h"
 
+#include <vector>
+
 namespace android {
 namespace hardware {
 namespace camera {
@@ -49,7 +51,7 @@
 /*
  * The camera device HAL implementation is opened lazily (via the open call)
  */
-struct ExternalCameraDevice : public ICameraDevice {
+struct ExternalCameraDevice : public virtual RefBase {
 
     // Called by external camera provider HAL.
     // Provider HAL must ensure the uniqueness of CameraDevice object per cameraId, or there could
@@ -57,33 +59,54 @@
     // to keep track of all CameraDevice objects in order to notify CameraDevice when the underlying
     // camera is detached.
     ExternalCameraDevice(const std::string& cameraId, const ExternalCameraConfig& cfg);
-    ~ExternalCameraDevice();
+    virtual ~ExternalCameraDevice();
+
+    // Retrieve the HIDL interface, split into its own class to avoid inheritance issues when
+    // dealing with minor version revs and simultaneous implementation and interface inheritance
+    virtual sp<ICameraDevice> getInterface() {
+        return new TrampolineDeviceInterface_3_4(this);
+    }
 
     // Caller must use this method to check if CameraDevice ctor failed
     bool isInitFailed();
+    bool isInitFailedLocked();
 
     /* Methods from ::android::hardware::camera::device::V3_2::ICameraDevice follow. */
     // The following method can be called without opening the actual camera device
-    Return<void> getResourceCost(getResourceCost_cb _hidl_cb) override;
+    Return<void> getResourceCost(ICameraDevice::getResourceCost_cb _hidl_cb);
 
-    Return<void> getCameraCharacteristics(getCameraCharacteristics_cb _hidl_cb) override;
+    Return<void> getCameraCharacteristics(
+            ICameraDevice::getCameraCharacteristics_cb _hidl_cb);
 
-    Return<Status> setTorchMode(TorchMode) override;
+    Return<Status> setTorchMode(TorchMode);
 
     // Open the device HAL and also return a default capture session
-    Return<void> open(const sp<ICameraDeviceCallback>&, open_cb) override;
+    Return<void> open(const sp<ICameraDeviceCallback>&, ICameraDevice::open_cb);
 
     // Forward the dump call to the opened session, or do nothing
-    Return<void> dumpState(const ::android::hardware::hidl_handle&) override;
+    Return<void> dumpState(const ::android::hardware::hidl_handle&);
     /* End of Methods from ::android::hardware::camera::device::V3_2::ICameraDevice */
 
 protected:
+    // Overridden by child implementations for returning different versions of
+    // ExternalCameraDeviceSession
+    virtual sp<ExternalCameraDeviceSession> createSession(
+            const sp<ICameraDeviceCallback>&,
+            const ExternalCameraConfig& cfg,
+            const std::vector<SupportedV4L2Format>& sortedFormats,
+            const CroppingType& croppingType,
+            const common::V1_0::helper::CameraMetadata& chars,
+            const std::string& cameraId,
+            unique_fd v4l2Fd);
+
     // Init supported w/h/format/fps in mSupportedFormats. Caller still owns fd
     void initSupportedFormatsLocked(int fd);
 
+    // Calls into virtual member function. Do not use it in constructor
     status_t initCameraCharacteristics();
     // Init non-device dependent keys
-    status_t initDefaultCharsKeys(::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
+    virtual status_t initDefaultCharsKeys(
+            ::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
     // Init camera control chars keys. Caller still owns fd
     status_t initCameraControlsCharsKeys(int fd,
             ::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
@@ -103,6 +126,7 @@
             /*inout*/std::vector<SupportedV4L2Format>* pFmts);
 
     Mutex mLock;
+    bool mInitialized = false;
     bool mInitFailed = false;
     std::string mCameraId;
     const ExternalCameraConfig& mCfg;
@@ -112,6 +136,84 @@
     wp<ExternalCameraDeviceSession> mSession = nullptr;
 
     ::android::hardware::camera::common::V1_0::helper::CameraMetadata mCameraCharacteristics;
+
+    const std::vector<int32_t> AVAILABLE_CHARACTERISTICS_KEYS_3_4 = {
+        ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
+        ANDROID_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES,
+        ANDROID_CONTROL_AE_AVAILABLE_MODES,
+        ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES,
+        ANDROID_CONTROL_AE_COMPENSATION_RANGE,
+        ANDROID_CONTROL_AE_COMPENSATION_STEP,
+        ANDROID_CONTROL_AE_LOCK_AVAILABLE,
+        ANDROID_CONTROL_AF_AVAILABLE_MODES,
+        ANDROID_CONTROL_AVAILABLE_EFFECTS,
+        ANDROID_CONTROL_AVAILABLE_MODES,
+        ANDROID_CONTROL_AVAILABLE_SCENE_MODES,
+        ANDROID_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES,
+        ANDROID_CONTROL_AWB_AVAILABLE_MODES,
+        ANDROID_CONTROL_AWB_LOCK_AVAILABLE,
+        ANDROID_CONTROL_MAX_REGIONS,
+        ANDROID_FLASH_INFO_AVAILABLE,
+        ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL,
+        ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
+        ANDROID_LENS_FACING,
+        ANDROID_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
+        ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION,
+        ANDROID_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES,
+        ANDROID_REQUEST_AVAILABLE_CAPABILITIES,
+        ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS,
+        ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
+        ANDROID_REQUEST_PARTIAL_RESULT_COUNT,
+        ANDROID_REQUEST_PIPELINE_MAX_DEPTH,
+        ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
+        ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
+        ANDROID_SCALER_CROPPING_TYPE,
+        ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
+        ANDROID_SENSOR_INFO_MAX_FRAME_DURATION,
+        ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
+        ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE,
+        ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE,
+        ANDROID_SENSOR_ORIENTATION,
+        ANDROID_SHADING_AVAILABLE_MODES,
+        ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
+        ANDROID_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES,
+        ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES,
+        ANDROID_STATISTICS_INFO_MAX_FACE_COUNT,
+        ANDROID_SYNC_MAX_LATENCY};
+
+private:
+
+    struct TrampolineDeviceInterface_3_4 : public ICameraDevice {
+        TrampolineDeviceInterface_3_4(sp<ExternalCameraDevice> parent) :
+            mParent(parent) {}
+
+        virtual Return<void> getResourceCost(V3_2::ICameraDevice::getResourceCost_cb _hidl_cb)
+                override {
+            return mParent->getResourceCost(_hidl_cb);
+        }
+
+        virtual Return<void> getCameraCharacteristics(
+                V3_2::ICameraDevice::getCameraCharacteristics_cb _hidl_cb) override {
+            return mParent->getCameraCharacteristics(_hidl_cb);
+        }
+
+        virtual Return<Status> setTorchMode(TorchMode mode) override {
+            return mParent->setTorchMode(mode);
+        }
+
+        virtual Return<void> open(const sp<V3_2::ICameraDeviceCallback>& callback,
+                V3_2::ICameraDevice::open_cb _hidl_cb) override {
+            return mParent->open(callback, _hidl_cb);
+        }
+
+        virtual Return<void> dumpState(const hidl_handle& fd) override {
+            return mParent->dumpState(fd);
+        }
+
+    private:
+        sp<ExternalCameraDevice> mParent;
+    };
+
 };
 
 }  // namespace implementation
diff --git a/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraUtils.h b/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraUtils.h
index 5754ccb..3b1ac96 100644
--- a/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraUtils.h
+++ b/camera/device/3.4/default/include/ext_device_v3_4_impl/ExternalCameraUtils.h
@@ -80,6 +80,9 @@
     // Minimum output stream size
     Size minStreamSize;
 
+    // The value of android.sensor.orientation
+    int32_t orientation;
+
 private:
     ExternalCameraConfig();
 };
diff --git a/camera/device/3.5/Android.bp b/camera/device/3.5/Android.bp
new file mode 100644
index 0000000..6d18367
--- /dev/null
+++ b/camera/device/3.5/Android.bp
@@ -0,0 +1,35 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.camera.device@3.5",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ICameraDevice.hal",
+        "ICameraDeviceCallback.hal",
+        "ICameraDeviceSession.hal",
+    ],
+    interfaces: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.graphics.common@1.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "BufferRequest",
+        "BufferRequestStatus",
+        "CameraBlob",
+        "CameraBlobId",
+        "StreamBufferRequestError",
+        "StreamBufferRet",
+        "StreamBuffersVal",
+        "StreamConfiguration",
+    ],
+    gen_java: false,
+}
+
diff --git a/camera/device/3.5/ICameraDevice.hal b/camera/device/3.5/ICameraDevice.hal
new file mode 100644
index 0000000..492105c
--- /dev/null
+++ b/camera/device/3.5/ICameraDevice.hal
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.device@3.5;
+
+import android.hardware.camera.common@1.0::Status;
+import @3.2::CameraMetadata;
+import @3.2::ICameraDevice;
+import @3.4::StreamConfiguration;
+
+/**
+ * Camera device interface
+ *
+ * Supports the android.hardware.Camera API, and the android.hardware.camera2
+ * API at LIMITED or better hardware level.
+ *
+ */
+interface ICameraDevice extends @3.2::ICameraDevice {
+
+    /**
+     * getPhysicalCameraCharacteristics:
+     *
+     * Return the static camera information for a physical camera ID backing
+     * this logical camera device. This information may not change between consecutive calls.
+     *
+     * Note that HAL must support this function for physical camera IDs that are
+     * not exposed via ICameraProvider::getCameraIdList(). Calling
+     * getCameraDeviceInterface_V3_x() on these camera IDs must return ILLEGAL_ARGUMENT.
+     *
+     * The characteristics of all cameras returned by
+     * ICameraProvider::getCameraIdList() must be queried via
+     * getCameraCharacteristics(). Calling getPhysicalCameraCharacteristics() on
+     * those cameras must return ILLEGAL_ARGUMENT.
+     *
+     * @param physicalCameraId The physical camera id parsed from the logical
+     *     camera's ANDROID_LOGICAL_MULTI_CAMERA_PHYSICAL_IDS static metadata
+     *     key. The framework assumes that this ID is just the <id> part of fully
+     *     qualified camera device name "device@<major>.<minor>/<type>/<id>". And
+     *     the physical camera must be of the same version and type as the parent
+     *     logical camera device.
+     *
+     * @return status Status code for the operation, one of:
+     *     OK:
+     *         On a successful query of the physical camera device characteristics
+     *     INTERNAL_ERROR:
+     *         The camera device cannot be opened due to an internal
+     *         error.
+     *     CAMERA_DISCONNECTED:
+     *         An external camera device has been disconnected, and is no longer
+     *         available. This camera device interface is now stale, and a new
+     *         instance must be acquired if the device is reconnected. All
+     *         subsequent calls on this interface must return
+     *         CAMERA_DISCONNECTED.
+     *     ILLEGAL_ARGUMENT:
+     *         If the physicalCameraId is not a valid physical camera Id outside
+     *         of ICameraProvider::getCameraIdList().
+     *
+     * @return cameraCharacteristics
+     *     The static metadata for this logical camera device's physical device, or an empty
+     *     metadata structure if status is not OK.
+     *
+     */
+    getPhysicalCameraCharacteristics(string physicalCameraId)
+            generates (Status status, CameraMetadata cameraCharacteristics);
+
+
+    /**
+     * isStreamCombinationSupported:
+     *
+     * Check for device support of specific camera stream combination.
+     *
+     * The streamList must contain at least one output-capable stream, and may
+     * not contain more than one input-capable stream.
+     * In contrast to regular stream configuration the framework does not create
+     * or initialize any actual streams. This means that Hal must not use or
+     * consider the stream "id" value.
+     *
+     * ------------------------------------------------------------------------
+     *
+     * Preconditions:
+     *
+     * The framework can call this method at any time before, during and
+     * after active session configuration. This means that calls must not
+     * impact the performance of pending camera requests in any way. In
+     * particular there must not be any glitches or delays during normal
+     * camera streaming.
+     *
+     * Performance requirements:
+     * This call is expected to be significantly faster than stream
+     * configuration. In general HW and SW camera settings must not be
+     * changed and there must not be a user-visible impact on camera performance.
+     *
+     * @return Status Status code for the operation, one of:
+     *     OK:
+     *          On successful stream combination query.
+     *     METHOD_NOT_SUPPORTED:
+     *          The camera device does not support stream combination query.
+     *     INTERNAL_ERROR:
+     *          The stream combination query cannot complete due to internal
+     *          error.
+     * @return true in case the stream combination is supported, false otherwise.
+     *
+     */
+    isStreamCombinationSupported(@3.4::StreamConfiguration streams)
+            generates (Status status, bool queryStatus);
+};
diff --git a/camera/device/3.5/ICameraDeviceCallback.hal b/camera/device/3.5/ICameraDeviceCallback.hal
new file mode 100644
index 0000000..aa4ad22
--- /dev/null
+++ b/camera/device/3.5/ICameraDeviceCallback.hal
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.device@3.5;
+
+import @3.2::StreamBuffer;
+import @3.4::ICameraDeviceCallback;
+
+/**
+ * Callback methods for the HAL to call into the framework.
+ */
+interface ICameraDeviceCallback extends @3.4::ICameraDeviceCallback {
+
+    /**
+     * requestStreamBuffers:
+     *
+     * Synchronous callback for HAL to ask for output buffers from camera service.
+     *
+     * This call may be serialized in camera service so it is strongly
+     * recommended to only call this method from one thread.
+     *
+     * When camera device advertises
+     * (CameraMetadataEnumAndroidInfoSupportedBufferManagementVersion ==
+     * ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5), HAL
+     * can use this method to request buffers from camera service.
+     *
+     * @return status Status code for the operation, one of:
+     *     OK: all requested buffers are returned
+     *     FAILED_PARTIAL: some streams failed while some succeeds. Check
+     *             individual StreamBufferRet for details.
+     *     FAILED_CONFIGURING: the request failed because camera servicve is
+     *             performing configureStreams and no buffers are returned.
+     *     FAILED_UNKNOWN: the request failed for unknown reason and no buffers
+     *             are returned.
+     *
+     * Performance requirements:
+     * This is a blocking call that takes more time with more buffers requested.
+     * HAL must not request large amount of buffers on a latency critical code
+     * path. It is highly recommended to use a dedicated thread to perform
+     * all requestStreamBuffers calls, and adjust the thread priority and/or
+     * timing of making the call in order for buffers to arrive before HAL is
+     * ready to fill the buffer.
+     */
+    requestStreamBuffers(vec<BufferRequest> bufReqs)
+            generates (BufferRequestStatus st, vec<StreamBufferRet> buffers);
+
+    /**
+     * returnStreamBuffers:
+     *
+     * Synchronous callback for HAL to return output buffers to camera service.
+     *
+     * If this method is called during a configureStreams call, it must be blocked
+     * until camera service finishes the ongoing configureStreams call.
+     */
+    returnStreamBuffers(vec<StreamBuffer> buffers);
+
+};
diff --git a/camera/device/3.5/ICameraDeviceSession.hal b/camera/device/3.5/ICameraDeviceSession.hal
new file mode 100644
index 0000000..d0cfe39
--- /dev/null
+++ b/camera/device/3.5/ICameraDeviceSession.hal
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.device@3.5;
+
+import android.hardware.camera.common@1.0::Status;
+import @3.2::CameraMetadata;
+import @3.4::ICameraDeviceSession;
+import @3.4::HalStreamConfiguration;
+
+/**
+ * Camera device active session interface.
+ *
+ * Obtained via ICameraDevice::open(), this interface contains the methods to
+ * configure and request captures from an active camera device.
+ */
+interface ICameraDeviceSession extends @3.4::ICameraDeviceSession {
+
+    /**
+     * configureStreams_3_5:
+     *
+     * Identical to @3.4::ICameraDeviceSession.configureStreams, except that:
+     *
+     * - a streamConfigCounter counter is provided to check for race condition
+     *   between configureStreams_3_5 and signalStreamFlush call.
+     *
+     * @return status Status code for the operation, one of:
+     *     OK:
+     *         On successful stream configuration.
+     *     INTERNAL_ERROR:
+     *         If there has been a fatal error and the device is no longer
+     *         operational. Only close() can be called successfully by the
+     *         framework after this error is returned.
+     *     ILLEGAL_ARGUMENT:
+     *         If the requested stream configuration is invalid. Some examples
+     *         of invalid stream configurations include:
+     *           - Including more than 1 INPUT stream
+     *           - Not including any OUTPUT streams
+     *           - Including streams with unsupported formats, or an unsupported
+     *             size for that format.
+     *           - Including too many output streams of a certain format.
+     *           - Unsupported rotation configuration
+     *           - Stream sizes/formats don't satisfy the
+     *             StreamConfigurationMode requirements
+     *             for non-NORMAL mode, or the requested operation_mode is not
+     *             supported by the HAL.
+     *           - Unsupported usage flag
+     *         The camera service cannot filter out all possible illegal stream
+     *         configurations, since some devices may support more simultaneous
+     *         streams or larger stream resolutions than the minimum required
+     *         for a given camera device hardware level. The HAL must return an
+     *         ILLEGAL_ARGUMENT for any unsupported stream set, and then be
+     *         ready to accept a future valid stream configuration in a later
+     *         configureStreams call.
+     * @return halConfiguration The stream parameters desired by the HAL for
+     *     each stream, including maximum buffers, the usage flags, and the
+     *     override format.
+     */
+    configureStreams_3_5(@3.5::StreamConfiguration requestedConfiguration)
+            generates (Status status,
+                       @3.4::HalStreamConfiguration halConfiguration);
+
+
+    /**
+     * signalStreamFlush:
+     *
+     * Signaling HAL camera service is about to perform configureStreams_3_5 and
+     * HAL must return all buffers of designated streams. HAL must finish
+     * inflight requests normally and return all buffers that belongs to the
+     * designated streams through processCaptureResult or returnStreamBuffer
+     * API in a timely manner, or camera service will run into a fatal error.
+     *
+     * Note that this call serves as an optional hint and camera service may
+     * skip sending this call if all buffers are already returned.
+     *
+     * @param streamIds The ID of streams camera service need all of its
+     *     buffers returned.
+     *
+     * @param streamConfigCounter Note that due to concurrency nature, it is
+     *     possible the signalStreamFlush call arrives later than the
+     *     corresponding configureStreams_3_5 call, HAL must check
+     *     streamConfigCounter for such race condition. If the counter is less
+     *     than the counter in the last configureStreams_3_5 call HAL last
+     *     received, the call is stale and HAL should just return this call.
+     */
+    oneway signalStreamFlush(
+        vec<int32_t> streamIds,
+        uint32_t streamConfigCounter
+    );
+
+    /**
+     * isReconfigurationRequired:
+     *
+     * Check whether complete stream reconfiguration is required for possible new session
+     * parameter values.
+     *
+     * This method must be called by the camera framework in case the client changes
+     * the value of any advertised session parameters. Depending on the specific values
+     * the HAL can decide whether a complete stream reconfiguration is required. In case
+     * the HAL returns false, the camera framework must skip the internal reconfiguration.
+     * In case Hal returns true, the framework must reconfigure the streams and pass the
+     * new session parameter values accordingly.
+     * This call may be done by the framework some time before the request with new parameters
+     * is submitted to the HAL, and the request may be cancelled before it ever gets submitted.
+     * Therefore, the HAL must not use this query as an indication to change its behavior in any
+     * way.
+     * ------------------------------------------------------------------------
+     *
+     * Preconditions:
+     *
+     * The framework can call this method at any time after active
+     * session configuration. There must be no impact on the performance of
+     * pending camera requests in any way. In particular there must not be
+     * any glitches or delays during normal camera streaming.
+     *
+     * Performance requirements:
+     * HW and SW camera settings must not be changed and there must not be
+     * a user-visible impact on camera performance.
+     *
+     * @param oldSessionParams Before session parameters, usually the current session parameters.
+     * @param newSessionParams The new session parameters which may be set by client.
+     *
+     * @return Status Status code for the operation, one of:
+     *     OK:
+     *          On successful reconfiguration required query.
+     *     METHOD_NOT_SUPPORTED:
+     *          The camera device does not support the reconfiguration query.
+     *     INTERNAL_ERROR:
+     *          The reconfiguration query cannot complete due to internal
+     *          error.
+     * @return true in case the stream reconfiguration is required, false otherwise.
+     */
+    isReconfigurationRequired(CameraMetadata oldSessionParams, CameraMetadata newSessionParams)
+            generates(Status status, bool reconfigurationNeeded);
+};
diff --git a/camera/device/3.5/default/Android.bp b/camera/device/3.5/default/Android.bp
new file mode 100644
index 0000000..7a48865
--- /dev/null
+++ b/camera/device/3.5/default/Android.bp
@@ -0,0 +1,102 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_headers {
+    name: "camera.device@3.5-impl_headers",
+    vendor: true,
+    export_include_dirs: ["include/device_v3_5_impl"]
+}
+
+cc_library_headers {
+    name: "camera.device@3.5-external-impl_headers",
+    vendor: true,
+    export_include_dirs: ["include/ext_device_v3_5_impl"]
+}
+
+cc_library_shared {
+    name: "camera.device@3.5-impl",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    vendor: true,
+    srcs: [
+        "CameraDevice.cpp",
+        "CameraDeviceSession.cpp",
+    ],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "libcutils",
+        "camera.device@3.2-impl",
+        "camera.device@3.3-impl",
+        "camera.device@3.4-impl",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.graphics.mapper@2.0",
+        "liblog",
+        "libhardware",
+        "libcamera_metadata",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    local_include_dirs: ["include/device_v3_5_impl"],
+}
+
+cc_library_shared {
+    name: "camera.device@3.5-external-impl",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    vendor: true,
+    srcs: [
+        "ExternalCameraDevice.cpp",
+        "ExternalCameraDeviceSession.cpp",
+    ],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "libcutils",
+        "camera.device@3.2-impl",
+        "camera.device@3.3-impl",
+        "camera.device@3.4-external-impl",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.graphics.mapper@2.0",
+        "liblog",
+        "libhardware",
+        "libcamera_metadata",
+        "libfmq",
+        "libsync",
+        "libyuv",
+        "libjpeg",
+        "libexif",
+        "libtinyxml2"
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    local_include_dirs: ["include/ext_device_v3_5_impl"],
+    export_shared_lib_headers: [
+        "libfmq",
+    ],
+}
diff --git a/camera/device/3.5/default/CameraDevice.cpp b/camera/device/3.5/default/CameraDevice.cpp
new file mode 100644
index 0000000..cffda4e
--- /dev/null
+++ b/camera/device/3.5/default/CameraDevice.cpp
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CamDev@3.5-impl"
+#include <log/log.h>
+
+#include "CameraModule.h"
+#include "CameraDevice_3_5.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::device;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::device::V3_2::CameraMetadata;
+
+CameraDevice::CameraDevice(sp<CameraModule> module, const std::string& cameraId,
+        const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames) :
+        V3_4::implementation::CameraDevice(module, cameraId, cameraDeviceNames) {
+}
+
+CameraDevice::~CameraDevice() {
+}
+
+sp<V3_2::implementation::CameraDeviceSession> CameraDevice::createSession(camera3_device_t* device,
+        const camera_metadata_t* deviceInfo,
+        const sp<V3_2::ICameraDeviceCallback>& callback) {
+    sp<CameraDeviceSession> session = new CameraDeviceSession(device, deviceInfo, callback);
+    IF_ALOGV() {
+        session->getInterface()->interfaceChain([](
+            ::android::hardware::hidl_vec<::android::hardware::hidl_string> interfaceChain) {
+                ALOGV("Session interface chain:");
+                for (auto iface : interfaceChain) {
+                    ALOGV("  %s", iface.c_str());
+                }
+            });
+    }
+    return session;
+}
+
+Return<void> CameraDevice::getPhysicalCameraCharacteristics(const hidl_string& physicalCameraId,
+        V3_5::ICameraDevice::getPhysicalCameraCharacteristics_cb _hidl_cb) {
+    Status status = initStatus();
+    CameraMetadata cameraCharacteristics;
+    if (status == Status::OK) {
+        // Require module 2.5+ version.
+        if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_5) {
+            ALOGE("%s: get_physical_camera_info must be called on camera module 2.5 or newer",
+                    __FUNCTION__);
+            status = Status::INTERNAL_ERROR;
+        } else {
+            char *end;
+            errno = 0;
+            long id = strtol(physicalCameraId.c_str(), &end, 0);
+            if (id > INT_MAX || (errno == ERANGE && id == LONG_MAX) ||
+                    id < INT_MIN || (errno == ERANGE && id == LONG_MIN) ||
+                    *end != '\0') {
+                ALOGE("%s: Invalid physicalCameraId %s", __FUNCTION__, physicalCameraId.c_str());
+                status = Status::ILLEGAL_ARGUMENT;
+            } else {
+                camera_metadata_t *physicalInfo = nullptr;
+                int ret = mModule->getPhysicalCameraInfo((int)id, &physicalInfo);
+                if (ret == OK) {
+                    V3_2::implementation::convertToHidl(physicalInfo, &cameraCharacteristics);
+                } else if (ret == -EINVAL) {
+                    ALOGE("%s: %s is not a valid physical camera Id outside of getCameraIdList()",
+                            __FUNCTION__, physicalCameraId.c_str());
+                    status = Status::ILLEGAL_ARGUMENT;
+                } else {
+                    ALOGE("%s: Failed to get physical camera %s info: %s (%d)!", __FUNCTION__,
+                            physicalCameraId.c_str(), strerror(-ret), ret);
+                    status = Status::INTERNAL_ERROR;
+                }
+            }
+        }
+    }
+    _hidl_cb(status, cameraCharacteristics);
+    return Void();
+}
+
+Return<void> CameraDevice::isStreamCombinationSupported(const V3_4::StreamConfiguration& streams,
+        V3_5::ICameraDevice::isStreamCombinationSupported_cb _hidl_cb) {
+    Status status;
+    bool streamsSupported = false;
+
+    // Require module 2.5+ version.
+    if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_5) {
+        ALOGE("%s: is_stream_combination_supported must be called on camera module 2.5 or "\
+                "newer", __FUNCTION__);
+        status = Status::INTERNAL_ERROR;
+    } else {
+        camera_stream_combination_t streamComb{};
+        streamComb.operation_mode = static_cast<uint32_t> (streams.operationMode);
+        streamComb.num_streams = streams.streams.size();
+        camera_stream_t *streamBuffer  = new camera_stream_t[streamComb.num_streams];
+
+        size_t i = 0;
+        for (const auto &it : streams.streams) {
+            streamBuffer[i].stream_type = static_cast<int> (it.v3_2.streamType);
+            streamBuffer[i].width = it.v3_2.width;
+            streamBuffer[i].height = it.v3_2.height;
+            streamBuffer[i].format = static_cast<int> (it.v3_2.format);
+            streamBuffer[i].data_space = static_cast<android_dataspace_t> (it.v3_2.dataSpace);
+            streamBuffer[i].usage = static_cast<uint32_t> (it.v3_2.usage);
+            streamBuffer[i].physical_camera_id = it.physicalCameraId.c_str();
+            streamBuffer[i++].rotation = static_cast<int> (it.v3_2.rotation);
+        }
+        streamComb.streams = streamBuffer;
+        auto res = mModule->isStreamCombinationSupported(mCameraIdInt, &streamComb);
+        switch (res) {
+            case NO_ERROR:
+                streamsSupported = true;
+                status = Status::OK;
+                break;
+            case BAD_VALUE:
+                status = Status::OK;
+                break;
+            case INVALID_OPERATION:
+                status = Status::METHOD_NOT_SUPPORTED;
+                break;
+            default:
+                ALOGE("%s: Unexpected error: %d", __FUNCTION__, res);
+                status = Status::INTERNAL_ERROR;
+        };
+        delete [] streamBuffer;
+    }
+
+    _hidl_cb(status, streamsSupported);
+    return Void();
+}
+
+// End of methods from ::android::hardware::camera::device::V3_2::ICameraDevice.
+
+} // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
diff --git a/camera/device/3.5/default/CameraDeviceSession.cpp b/camera/device/3.5/default/CameraDeviceSession.cpp
new file mode 100644
index 0000000..bea1be6
--- /dev/null
+++ b/camera/device/3.5/default/CameraDeviceSession.cpp
@@ -0,0 +1,414 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CamDevSession@3.5-impl"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+#include <android/log.h>
+
+#include <vector>
+#include <utils/Trace.h>
+#include "CameraDeviceSession.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+CameraDeviceSession::CameraDeviceSession(
+    camera3_device_t* device,
+    const camera_metadata_t* deviceInfo,
+    const sp<V3_2::ICameraDeviceCallback>& callback) :
+        V3_4::implementation::CameraDeviceSession(device, deviceInfo, callback) {
+
+    mCallback_3_5 = nullptr;
+
+    auto castResult = ICameraDeviceCallback::castFrom(callback);
+    if (castResult.isOk()) {
+        sp<ICameraDeviceCallback> callback3_5 = castResult;
+        if (callback3_5 != nullptr) {
+            mCallback_3_5 = callback3_5;
+        }
+    }
+
+    if (mCallback_3_5 != nullptr) {
+        camera_metadata_entry bufMgrVersion = mDeviceInfo.find(
+                ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION);
+        if (bufMgrVersion.count > 0) {
+            mSupportBufMgr = (bufMgrVersion.data.u8[0] ==
+                    ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5);
+            if (mSupportBufMgr) {
+                request_stream_buffers = sRequestStreamBuffers;
+                return_stream_buffers = sReturnStreamBuffers;
+            }
+        }
+    }
+}
+
+CameraDeviceSession::~CameraDeviceSession() {
+}
+
+Return<void> CameraDeviceSession::configureStreams_3_5(
+        const StreamConfiguration& requestedConfiguration,
+        ICameraDeviceSession::configureStreams_3_5_cb _hidl_cb)  {
+    configureStreams_3_4_Impl(requestedConfiguration.v3_4, _hidl_cb,
+            requestedConfiguration.streamConfigCounter);
+    return Void();
+}
+
+Return<void> CameraDeviceSession::signalStreamFlush(
+        const hidl_vec<int32_t>& streamIds, uint32_t streamConfigCounter) {
+    if (mDevice->ops->signal_stream_flush == nullptr) {
+        return Void();
+    }
+
+    uint32_t currentCounter = 0;
+    {
+        Mutex::Autolock _l(mStreamConfigCounterLock);
+        currentCounter = mStreamConfigCounter;
+    }
+
+    if (streamConfigCounter < currentCounter) {
+        ALOGV("%s: streamConfigCounter %d is stale (current %d), skipping signal_stream_flush call",
+                __FUNCTION__, streamConfigCounter, mStreamConfigCounter);
+        return Void();
+    }
+
+    std::vector<camera3_stream_t*> streams(streamIds.size());
+    {
+        Mutex::Autolock _l(mInflightLock);
+        for (size_t i = 0; i < streamIds.size(); i++) {
+            int32_t id = streamIds[i];
+            if (mStreamMap.count(id) == 0) {
+                ALOGE("%s: unknown streamId %d", __FUNCTION__, id);
+                return Void();
+            }
+            streams[i] = &mStreamMap[id];
+        }
+    }
+
+    mDevice->ops->signal_stream_flush(mDevice, streams.size(), streams.data());
+    return Void();
+}
+
+Status CameraDeviceSession::importRequest(
+        const CaptureRequest& request,
+        hidl_vec<buffer_handle_t*>& allBufPtrs,
+        hidl_vec<int>& allFences) {
+    if (mSupportBufMgr) {
+        return importRequestImpl(request, allBufPtrs, allFences, /*allowEmptyBuf*/ true);
+    }
+    return importRequestImpl(request, allBufPtrs, allFences, /*allowEmptyBuf*/ false);
+}
+
+void CameraDeviceSession::pushBufferId(
+        const buffer_handle_t& buf, uint64_t bufferId, int streamId) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+
+    // emplace will return existing entry if there is one.
+    auto pair = mBufferIdMaps.emplace(streamId, BufferIdMap{});
+    BufferIdMap& bIdMap = pair.first->second;
+    bIdMap[buf] = bufferId;
+}
+
+uint64_t CameraDeviceSession::popBufferId(
+        const buffer_handle_t& buf, int streamId) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+
+    auto streamIt = mBufferIdMaps.find(streamId);
+    if (streamIt == mBufferIdMaps.end()) {
+        return BUFFER_ID_NO_BUFFER;
+    }
+    BufferIdMap& bIdMap = streamIt->second;
+    auto it = bIdMap.find(buf);
+    if (it == bIdMap.end()) {
+        return BUFFER_ID_NO_BUFFER;
+    }
+    uint64_t bufId = it->second;
+    bIdMap.erase(it);
+    if (bIdMap.empty()) {
+        mBufferIdMaps.erase(streamIt);
+    }
+    return bufId;
+}
+
+uint64_t CameraDeviceSession::getCapResultBufferId(const buffer_handle_t& buf, int streamId) {
+    if (mSupportBufMgr) {
+        return popBufferId(buf, streamId);
+    }
+    return BUFFER_ID_NO_BUFFER;
+}
+
+Camera3Stream* CameraDeviceSession::getStreamPointer(int32_t streamId) {
+    Mutex::Autolock _l(mInflightLock);
+    if (mStreamMap.count(streamId) == 0) {
+        ALOGE("%s: unknown streamId %d", __FUNCTION__, streamId);
+        return nullptr;
+    }
+    return &mStreamMap[streamId];
+}
+
+void CameraDeviceSession::cleanupInflightBufferFences(
+        std::vector<int>& fences, std::vector<std::pair<buffer_handle_t, int>>& bufs) {
+    hidl_vec<int> hFences = fences;
+    cleanupInflightFences(hFences, fences.size());
+    for (auto& p : bufs) {
+        popBufferId(p.first, p.second);
+    }
+}
+
+camera3_buffer_request_status_t CameraDeviceSession::requestStreamBuffers(
+        uint32_t num_buffer_reqs,
+        const camera3_buffer_request_t *buffer_reqs,
+        /*out*/uint32_t *num_returned_buf_reqs,
+        /*out*/camera3_stream_buffer_ret_t *returned_buf_reqs) {
+    ATRACE_CALL();
+    *num_returned_buf_reqs = 0;
+    hidl_vec<BufferRequest> hBufReqs(num_buffer_reqs);
+    for (size_t i = 0; i < num_buffer_reqs; i++) {
+        hBufReqs[i].streamId =
+                static_cast<Camera3Stream*>(buffer_reqs[i].stream)->mId;
+        hBufReqs[i].numBuffersRequested = buffer_reqs[i].num_buffers_requested;
+    }
+
+    ATRACE_BEGIN("HIDL requestStreamBuffers");
+    BufferRequestStatus status;
+    hidl_vec<StreamBufferRet> bufRets;
+    auto err = mCallback_3_5->requestStreamBuffers(hBufReqs,
+            [&status, &bufRets]
+            (BufferRequestStatus s, const hidl_vec<StreamBufferRet>& rets) {
+                status = s;
+                bufRets = std::move(rets);
+            });
+    if (!err.isOk()) {
+        ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+        return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+    }
+    ATRACE_END();
+
+    switch (status) {
+        case BufferRequestStatus::FAILED_CONFIGURING:
+            return CAMERA3_BUF_REQ_FAILED_CONFIGURING;
+        case BufferRequestStatus::FAILED_ILLEGAL_ARGUMENTS:
+            return CAMERA3_BUF_REQ_FAILED_ILLEGAL_ARGUMENTS;
+        default:
+            break; // Other status Handled by following code
+    }
+
+    if (status != BufferRequestStatus::OK && status != BufferRequestStatus::FAILED_PARTIAL &&
+            status != BufferRequestStatus::FAILED_UNKNOWN) {
+        ALOGE("%s: unknown buffer request error code %d", __FUNCTION__, status);
+        return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+    }
+
+    // Only OK, FAILED_PARTIAL and FAILED_UNKNOWN reaches here
+    if (bufRets.size() != num_buffer_reqs) {
+        ALOGE("%s: expect %d buffer requests returned, only got %zu",
+                __FUNCTION__, num_buffer_reqs, bufRets.size());
+        return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+    }
+
+    *num_returned_buf_reqs = num_buffer_reqs;
+    for (size_t i = 0; i < num_buffer_reqs; i++) {
+        // maybe we can query all streams in one call to avoid frequent locking device here?
+        Camera3Stream* stream = getStreamPointer(bufRets[i].streamId);
+        if (stream == nullptr) {
+            ALOGE("%s: unknown streamId %d", __FUNCTION__, bufRets[i].streamId);
+            return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+        }
+        returned_buf_reqs[i].stream = stream;
+    }
+
+    // Handle failed streams
+    for (size_t i = 0; i < num_buffer_reqs; i++) {
+        if (bufRets[i].val.getDiscriminator() == StreamBuffersVal::hidl_discriminator::error) {
+            returned_buf_reqs[i].num_output_buffers = 0;
+            switch (bufRets[i].val.error()) {
+                case StreamBufferRequestError::NO_BUFFER_AVAILABLE:
+                    returned_buf_reqs[i].status = CAMERA3_PS_BUF_REQ_NO_BUFFER_AVAILABLE;
+                    break;
+                case StreamBufferRequestError::MAX_BUFFER_EXCEEDED:
+                    returned_buf_reqs[i].status = CAMERA3_PS_BUF_REQ_MAX_BUFFER_EXCEEDED;
+                    break;
+                case StreamBufferRequestError::STREAM_DISCONNECTED:
+                    returned_buf_reqs[i].status = CAMERA3_PS_BUF_REQ_STREAM_DISCONNECTED;
+                    break;
+                case StreamBufferRequestError::UNKNOWN_ERROR:
+                    returned_buf_reqs[i].status = CAMERA3_PS_BUF_REQ_UNKNOWN_ERROR;
+                    break;
+                default:
+                    ALOGE("%s: Unknown StreamBufferRequestError %d",
+                            __FUNCTION__, bufRets[i].val.error());
+                    return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+            }
+        }
+    }
+
+    if (status == BufferRequestStatus::FAILED_UNKNOWN) {
+        return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+    }
+
+    // Only BufferRequestStatus::OK and BufferRequestStatus::FAILED_PARTIAL reaches here
+    std::vector<int> importedFences;
+    std::vector<std::pair<buffer_handle_t, int>> importedBuffers;
+    for (size_t i = 0; i < num_buffer_reqs; i++) {
+        if (bufRets[i].val.getDiscriminator() !=
+                StreamBuffersVal::hidl_discriminator::buffers) {
+            continue;
+        }
+        int streamId = bufRets[i].streamId;
+        const hidl_vec<StreamBuffer>& hBufs = bufRets[i].val.buffers();
+        camera3_stream_buffer_t* outBufs = returned_buf_reqs[i].output_buffers;
+        for (size_t b = 0; b < hBufs.size(); b++) {
+            const StreamBuffer& hBuf = hBufs[b];
+            camera3_stream_buffer_t& outBuf = outBufs[b];
+            // maybe add importBuffers API to avoid frequent locking device?
+            Status s = importBuffer(streamId,
+                    hBuf.bufferId, hBuf.buffer.getNativeHandle(),
+                    /*out*/&(outBuf.buffer),
+                    /*allowEmptyBuf*/false);
+            if (s != Status::OK) {
+                ALOGE("%s: import stream %d bufferId %" PRIu64 " failed!",
+                        __FUNCTION__, streamId, hBuf.bufferId);
+                cleanupInflightBufferFences(importedFences, importedBuffers);
+                // Buffer import should never fail - restart HAL since something is very
+                // wrong.
+                assert(false);
+                return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+            }
+
+            pushBufferId(*(outBuf.buffer), hBuf.bufferId, streamId);
+            importedBuffers.push_back(std::make_pair(*(outBuf.buffer), streamId));
+
+            if (!sHandleImporter.importFence(
+                    hBuf.acquireFence,
+                    outBuf.acquire_fence)) {
+                ALOGE("%s: stream %d bufferId %" PRIu64 "acquire fence is invalid",
+                        __FUNCTION__, streamId, hBuf.bufferId);
+                cleanupInflightBufferFences(importedFences, importedBuffers);
+                return CAMERA3_BUF_REQ_FAILED_UNKNOWN;
+            }
+            importedFences.push_back(outBuf.acquire_fence);
+            outBuf.stream = returned_buf_reqs[i].stream;
+            outBuf.status = CAMERA3_BUFFER_STATUS_OK;
+            outBuf.release_fence = -1;
+        }
+        returned_buf_reqs[i].status = CAMERA3_PS_BUF_REQ_OK;
+    }
+
+    return (status == BufferRequestStatus::OK) ?
+            CAMERA3_BUF_REQ_OK : CAMERA3_BUF_REQ_FAILED_PARTIAL;
+}
+
+void CameraDeviceSession::returnStreamBuffers(
+        uint32_t num_buffers,
+        const camera3_stream_buffer_t* const* buffers) {
+    ATRACE_CALL();
+    hidl_vec<StreamBuffer> hBufs(num_buffers);
+
+    for (size_t i = 0; i < num_buffers; i++) {
+        hBufs[i].streamId =
+                static_cast<Camera3Stream*>(buffers[i]->stream)->mId;
+        hBufs[i].buffer = nullptr; // use bufferId
+        hBufs[i].bufferId = popBufferId(*(buffers[i]->buffer), hBufs[i].streamId);
+        if (hBufs[i].bufferId == BUFFER_ID_NO_BUFFER) {
+            ALOGE("%s: unknown buffer is returned to stream %d",
+                    __FUNCTION__, hBufs[i].streamId);
+        }
+        // ERROR since the buffer is not for application to consume
+        hBufs[i].status = BufferStatus::ERROR;
+        // skip acquire fence since it's of no use to camera service
+        if (buffers[i]->release_fence != -1) {
+            native_handle_t* handle = native_handle_create(/*numFds*/1, /*numInts*/0);
+            handle->data[0] = buffers[i]->release_fence;
+            hBufs[i].releaseFence.setTo(handle, /*shouldOwn*/true);
+        }
+    }
+
+    mCallback_3_5->returnStreamBuffers(hBufs);
+    return;
+}
+
+/**
+ * Static callback forwarding methods from HAL to instance
+ */
+camera3_buffer_request_status_t CameraDeviceSession::sRequestStreamBuffers(
+        const struct camera3_callback_ops *cb,
+        uint32_t num_buffer_reqs,
+        const camera3_buffer_request_t *buffer_reqs,
+        /*out*/uint32_t *num_returned_buf_reqs,
+        /*out*/camera3_stream_buffer_ret_t *returned_buf_reqs) {
+    CameraDeviceSession *d =
+            const_cast<CameraDeviceSession*>(static_cast<const CameraDeviceSession*>(cb));
+
+    if (num_buffer_reqs == 0 || buffer_reqs == nullptr || num_returned_buf_reqs == nullptr ||
+            returned_buf_reqs == nullptr) {
+        ALOGE("%s: bad argument: numBufReq %d, bufReqs %p, numRetBufReq %p, retBufReqs %p",
+                __FUNCTION__, num_buffer_reqs, buffer_reqs,
+                num_returned_buf_reqs, returned_buf_reqs);
+        return CAMERA3_BUF_REQ_FAILED_ILLEGAL_ARGUMENTS;
+    }
+
+    return d->requestStreamBuffers(num_buffer_reqs, buffer_reqs,
+            num_returned_buf_reqs, returned_buf_reqs);
+}
+
+void CameraDeviceSession::sReturnStreamBuffers(
+        const struct camera3_callback_ops *cb,
+        uint32_t num_buffers,
+        const camera3_stream_buffer_t* const* buffers) {
+    CameraDeviceSession *d =
+            const_cast<CameraDeviceSession*>(static_cast<const CameraDeviceSession*>(cb));
+
+    d->returnStreamBuffers(num_buffers, buffers);
+}
+
+Return<void> CameraDeviceSession::isReconfigurationRequired(
+        const V3_2::CameraMetadata& oldSessionParams, const V3_2::CameraMetadata& newSessionParams,
+        ICameraDeviceSession::isReconfigurationRequired_cb _hidl_cb) {
+    if (mDevice->ops->is_reconfiguration_required != nullptr) {
+        const camera_metadata_t *oldParams, *newParams;
+        V3_2::implementation::convertFromHidl(oldSessionParams, &oldParams);
+        V3_2::implementation::convertFromHidl(newSessionParams, &newParams);
+        auto ret = mDevice->ops->is_reconfiguration_required(mDevice, oldParams, newParams);
+        switch (ret) {
+            case 0:
+                _hidl_cb(Status::OK, true);
+                break;
+            case -EINVAL:
+                _hidl_cb(Status::OK, false);
+                break;
+            case -ENOSYS:
+                _hidl_cb(Status::METHOD_NOT_SUPPORTED, true);
+                break;
+            default:
+                _hidl_cb(Status::INTERNAL_ERROR, true);
+                break;
+        };
+    } else {
+        _hidl_cb(Status::METHOD_NOT_SUPPORTED, true);
+    }
+
+    return Void();
+}
+
+} // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/device/3.5/default/ExternalCameraDevice.cpp b/camera/device/3.5/default/ExternalCameraDevice.cpp
new file mode 100644
index 0000000..6a0b51e
--- /dev/null
+++ b/camera/device/3.5/default/ExternalCameraDevice.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ExtCamDev@3.5"
+//#define LOG_NDEBUG 0
+#include <log/log.h>
+
+#include "ExternalCameraDevice_3_5.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+ExternalCameraDevice::ExternalCameraDevice(
+        const std::string& cameraId, const ExternalCameraConfig& cfg) :
+        V3_4::implementation::ExternalCameraDevice(cameraId, cfg) {}
+
+ExternalCameraDevice::~ExternalCameraDevice() {}
+
+Return<void> ExternalCameraDevice::getPhysicalCameraCharacteristics(const hidl_string&,
+        V3_5::ICameraDevice::getPhysicalCameraCharacteristics_cb _hidl_cb) {
+    CameraMetadata cameraCharacteristics;
+    // External camera HAL doesn't support physical camera functions
+    _hidl_cb(Status::ILLEGAL_ARGUMENT, cameraCharacteristics);
+    return Void();
+}
+
+sp<V3_4::implementation::ExternalCameraDeviceSession> ExternalCameraDevice::createSession(
+        const sp<V3_2::ICameraDeviceCallback>& cb,
+        const ExternalCameraConfig& cfg,
+        const std::vector<SupportedV4L2Format>& sortedFormats,
+        const CroppingType& croppingType,
+        const common::V1_0::helper::CameraMetadata& chars,
+        const std::string& cameraId,
+        unique_fd v4l2Fd) {
+    return new ExternalCameraDeviceSession(
+            cb, cfg, sortedFormats, croppingType, chars, cameraId, std::move(v4l2Fd));
+}
+
+#define UPDATE(tag, data, size)                    \
+do {                                               \
+  if (metadata->update((tag), (data), (size))) {   \
+    ALOGE("Update " #tag " failed!");              \
+    return -EINVAL;                                \
+  }                                                \
+} while (0)
+
+status_t ExternalCameraDevice::initDefaultCharsKeys(
+        ::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
+    status_t res =
+            V3_4::implementation::ExternalCameraDevice::initDefaultCharsKeys(metadata);
+
+    if (res != OK) {
+        return res;
+    }
+
+    const uint8_t bufMgrVer = ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5;
+    UPDATE(ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION, &bufMgrVer, 1);
+
+    std::vector<int> availableCharacteristicsKeys = AVAILABLE_CHARACTERISTICS_KEYS_3_4;
+    availableCharacteristicsKeys.reserve(availableCharacteristicsKeys.size() +
+            EXTRA_CHARACTERISTICS_KEYS_3_5.size());
+    for (const auto& key : EXTRA_CHARACTERISTICS_KEYS_3_5) {
+        availableCharacteristicsKeys.push_back(key);
+    }
+    UPDATE(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS,
+           availableCharacteristicsKeys.data(),
+           availableCharacteristicsKeys.size());
+
+    return OK;
+}
+
+Return<void> ExternalCameraDevice::isStreamCombinationSupported(
+        const V3_4::StreamConfiguration& streams,
+        V3_5::ICameraDevice::isStreamCombinationSupported_cb _hidl_cb) {
+
+    if (isInitFailed()) {
+        ALOGE("%s: camera %s. camera init failed!", __FUNCTION__, mCameraId.c_str());
+        _hidl_cb(Status::INTERNAL_ERROR, false);
+        return Void();
+    }
+
+    hidl_vec<V3_2::Stream> streamsV3_2(streams.streams.size());
+    size_t i = 0;
+    for (const auto& it : streams.streams) {
+        streamsV3_2[i++] = it.v3_2;
+    }
+    V3_2::StreamConfiguration streamConfig = {streamsV3_2, streams.operationMode};
+    auto status = ExternalCameraDeviceSession::isStreamCombinationSupported(streamConfig,
+            mSupportedFormats);
+    _hidl_cb(Status::OK, Status::OK == status);
+    return Void();
+}
+#undef UPDATE
+
+}  // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
diff --git a/camera/device/3.5/default/ExternalCameraDeviceSession.cpp b/camera/device/3.5/default/ExternalCameraDeviceSession.cpp
new file mode 100644
index 0000000..00c1d0d
--- /dev/null
+++ b/camera/device/3.5/default/ExternalCameraDeviceSession.cpp
@@ -0,0 +1,312 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ExtCamDevSsn@3.5"
+#include <android/log.h>
+
+#include <utils/Trace.h>
+#include "ExternalCameraDeviceSession.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+ExternalCameraDeviceSession::ExternalCameraDeviceSession(
+        const sp<V3_2::ICameraDeviceCallback>& callback,
+        const ExternalCameraConfig& cfg,
+        const std::vector<SupportedV4L2Format>& sortedFormats,
+        const CroppingType& croppingType,
+        const common::V1_0::helper::CameraMetadata& chars,
+        const std::string& cameraId,
+        unique_fd v4l2Fd) :
+        V3_4::implementation::ExternalCameraDeviceSession(
+                callback, cfg, sortedFormats, croppingType, chars, cameraId, std::move(v4l2Fd)) {
+
+    mCallback_3_5 = nullptr;
+
+    auto castResult = V3_5::ICameraDeviceCallback::castFrom(callback);
+    if (castResult.isOk()) {
+        sp<V3_5::ICameraDeviceCallback> callback3_5 = castResult;
+        if (callback3_5 != nullptr) {
+            mCallback_3_5 = callback3_5;
+        }
+    }
+
+    if (mCallback_3_5 != nullptr) {
+        mSupportBufMgr = true;
+    }
+}
+
+ExternalCameraDeviceSession::~ExternalCameraDeviceSession() {
+    closeOutputThreadImpl();
+}
+
+Return<void> ExternalCameraDeviceSession::configureStreams_3_5(
+        const StreamConfiguration& requestedConfiguration,
+        ICameraDeviceSession::configureStreams_3_5_cb _hidl_cb)  {
+    return configureStreams_3_4(requestedConfiguration.v3_4, _hidl_cb);
+}
+
+Return<void> ExternalCameraDeviceSession::signalStreamFlush(
+        const hidl_vec<int32_t>& /*streamIds*/, uint32_t /*streamConfigCounter*/) {
+    return Void();
+}
+
+Status ExternalCameraDeviceSession::importRequestLocked(
+        const CaptureRequest& request,
+        hidl_vec<buffer_handle_t*>& allBufPtrs,
+        hidl_vec<int>& allFences) {
+    if (mSupportBufMgr) {
+        return importRequestLockedImpl(request, allBufPtrs, allFences, /*allowEmptyBuf*/ true);
+    }
+    return importRequestLockedImpl(request, allBufPtrs, allFences, /*allowEmptyBuf*/ false);
+}
+
+
+ExternalCameraDeviceSession::BufferRequestThread::BufferRequestThread(
+        wp<ExternalCameraDeviceSession> parent,
+        sp<V3_5::ICameraDeviceCallback> callbacks) :
+        mParent(parent),
+        mCallbacks(callbacks) {}
+
+int ExternalCameraDeviceSession::BufferRequestThread::requestBufferStart(
+        const std::vector<HalStreamBuffer>& bufReqs) {
+    if (bufReqs.empty()) {
+        ALOGE("%s: bufReqs is empty!", __FUNCTION__);
+        return -1;
+    }
+
+    {
+        std::lock_guard<std::mutex> lk(mLock);
+        if (mRequestingBuffer) {
+            ALOGE("%s: BufferRequestThread does not support more than one concurrent request!",
+                    __FUNCTION__);
+            return -1;
+        }
+
+        mBufferReqs = bufReqs;
+        mRequestingBuffer = true;
+    }
+    mRequestCond.notify_one();
+    return 0;
+}
+
+int ExternalCameraDeviceSession::BufferRequestThread::waitForBufferRequestDone(
+        std::vector<HalStreamBuffer>* outBufReq) {
+    std::unique_lock<std::mutex> lk(mLock);
+    if (!mRequestingBuffer) {
+        ALOGE("%s: no pending buffer request!", __FUNCTION__);
+        return -1;
+    }
+
+    if (mPendingReturnBufferReqs.empty()) {
+        std::chrono::milliseconds timeout = std::chrono::milliseconds(kReqProcTimeoutMs);
+        auto st = mRequestDoneCond.wait_for(lk, timeout);
+        if (st == std::cv_status::timeout) {
+            ALOGE("%s: wait for buffer request finish timeout!", __FUNCTION__);
+            return -1;
+        }
+    }
+    mRequestingBuffer = false;
+    *outBufReq = std::move(mPendingReturnBufferReqs);
+    mPendingReturnBufferReqs.clear();
+    return 0;
+}
+
+void ExternalCameraDeviceSession::BufferRequestThread::waitForNextRequest() {
+    ATRACE_CALL();
+    std::unique_lock<std::mutex> lk(mLock);
+    int waitTimes = 0;
+    while (mBufferReqs.empty()) {
+        if (exitPending()) {
+            return;
+        }
+        std::chrono::milliseconds timeout = std::chrono::milliseconds(kReqWaitTimeoutMs);
+        auto st = mRequestCond.wait_for(lk, timeout);
+        if (st == std::cv_status::timeout) {
+            waitTimes++;
+            if (waitTimes == kReqWaitTimesWarn) {
+                // BufferRequestThread just wait forever for new buffer request
+                // But it will print some periodic warning indicating it's waiting
+                ALOGV("%s: still waiting for new buffer request", __FUNCTION__);
+                waitTimes = 0;
+            }
+        }
+    }
+
+    // Fill in hidl BufferRequest
+    mHalBufferReqs.resize(mBufferReqs.size());
+    for (size_t i = 0; i < mHalBufferReqs.size(); i++) {
+        mHalBufferReqs[i].streamId = mBufferReqs[i].streamId;
+        mHalBufferReqs[i].numBuffersRequested = 1;
+    }
+}
+
+bool ExternalCameraDeviceSession::BufferRequestThread::threadLoop() {
+    waitForNextRequest();
+    if (exitPending()) {
+        return false;
+    }
+
+    ATRACE_BEGIN("HIDL requestStreamBuffers");
+    BufferRequestStatus status;
+    hidl_vec<StreamBufferRet> bufRets;
+    auto err = mCallbacks->requestStreamBuffers(mHalBufferReqs,
+            [&status, &bufRets]
+            (BufferRequestStatus s, const hidl_vec<StreamBufferRet>& rets) {
+                status = s;
+                bufRets = std::move(rets);
+            });
+    ATRACE_END();
+    if (!err.isOk()) {
+        ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+        return false;
+    }
+
+    std::unique_lock<std::mutex> lk(mLock);
+    if (status == BufferRequestStatus::OK || status == BufferRequestStatus::FAILED_PARTIAL) {
+        if (bufRets.size() != mHalBufferReqs.size()) {
+            ALOGE("%s: expect %zu buffer requests returned, only got %zu",
+                    __FUNCTION__, mHalBufferReqs.size(), bufRets.size());
+            return false;
+        }
+
+        auto parent = mParent.promote();
+        if (parent == nullptr) {
+            ALOGE("%s: session has been disconnected!", __FUNCTION__);
+            return false;
+        }
+
+        hidl_vec<int> importedFences;
+        importedFences.resize(bufRets.size());
+        for (size_t i = 0; i < bufRets.size(); i++) {
+            int streamId = bufRets[i].streamId;
+            switch (bufRets[i].val.getDiscriminator()) {
+                case StreamBuffersVal::hidl_discriminator::error:
+                    continue;
+                case StreamBuffersVal::hidl_discriminator::buffers: {
+                    const hidl_vec<V3_2::StreamBuffer>& hBufs = bufRets[i].val.buffers();
+                    if (hBufs.size() != 1) {
+                        ALOGE("%s: expect 1 buffer returned, got %zu!", __FUNCTION__, hBufs.size());
+                        return false;
+                    }
+                    const V3_2::StreamBuffer& hBuf = hBufs[0];
+
+                    mBufferReqs[i].bufferId = hBuf.bufferId;
+                    // TODO: create a batch import API so we don't need to lock/unlock mCbsLock
+                    // repeatedly?
+                    lk.unlock();
+                    Status s = parent->importBuffer(streamId,
+                            hBuf.bufferId, hBuf.buffer.getNativeHandle(),
+                            /*out*/&mBufferReqs[i].bufPtr,
+                            /*allowEmptyBuf*/false);
+                    lk.lock();
+
+                    if (s != Status::OK) {
+                        ALOGE("%s: stream %d import buffer failed!", __FUNCTION__, streamId);
+                        cleanupInflightFences(importedFences, i - 1);
+                        return false;
+                    }
+                    if (!sHandleImporter.importFence(hBuf.acquireFence,
+                            mBufferReqs[i].acquireFence)) {
+                        ALOGE("%s: stream %d import fence failed!", __FUNCTION__, streamId);
+                        cleanupInflightFences(importedFences, i - 1);
+                        return false;
+                    }
+                    importedFences[i] = mBufferReqs[i].acquireFence;
+                }
+                break;
+                default:
+                    ALOGE("%s: unkown StreamBuffersVal discrimator!", __FUNCTION__);
+                    return false;
+            }
+        }
+    } else {
+        ALOGE("%s: requestStreamBuffers call failed!", __FUNCTION__);
+    }
+
+    mPendingReturnBufferReqs = std::move(mBufferReqs);
+    mBufferReqs.clear();
+
+    lk.unlock();
+    mRequestDoneCond.notify_one();
+    return true;
+}
+
+void ExternalCameraDeviceSession::initOutputThread() {
+    if (mSupportBufMgr) {
+        mBufferRequestThread = new BufferRequestThread(this, mCallback_3_5);
+        mBufferRequestThread->run("ExtCamBufReq", PRIORITY_DISPLAY);
+    }
+    mOutputThread = new OutputThread(this, mCroppingType, mBufferRequestThread);
+}
+
+void ExternalCameraDeviceSession::closeOutputThreadImpl() {
+    if (mBufferRequestThread) {
+        mBufferRequestThread->requestExit();
+        mBufferRequestThread->join();
+        mBufferRequestThread.clear();
+    }
+}
+
+void ExternalCameraDeviceSession::closeOutputThread() {
+    closeOutputThreadImpl();
+    V3_4::implementation::ExternalCameraDeviceSession::closeOutputThread();
+}
+
+ExternalCameraDeviceSession::OutputThread::OutputThread(
+        wp<ExternalCameraDeviceSession> parent,
+        CroppingType ct,
+        sp<BufferRequestThread> bufReqThread) :
+        V3_4::implementation::ExternalCameraDeviceSession::OutputThread(parent, ct),
+        mBufferRequestThread(bufReqThread) {}
+
+ExternalCameraDeviceSession::OutputThread::~OutputThread() {}
+
+int ExternalCameraDeviceSession::OutputThread::requestBufferStart(
+        const std::vector<HalStreamBuffer>& bufs) {
+    if (mBufferRequestThread != nullptr) {
+        return mBufferRequestThread->requestBufferStart(bufs);
+    }
+    return 0;
+}
+
+int ExternalCameraDeviceSession::OutputThread::waitForBufferRequestDone(
+        /*out*/std::vector<HalStreamBuffer>* outBufs) {
+    if (mBufferRequestThread != nullptr) {
+        return mBufferRequestThread->waitForBufferRequestDone(outBufs);
+    }
+    return 0;
+}
+
+Return<void> ExternalCameraDeviceSession::isReconfigurationRequired(
+        const V3_2::CameraMetadata& /*oldSessionParams*/,
+        const V3_2::CameraMetadata& /*newSessionParams*/,
+        ICameraDeviceSession::isReconfigurationRequired_cb _hidl_cb) {
+    //Stub implementation
+    _hidl_cb(Status::OK, true);
+    return Void();
+}
+
+} // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/device/3.5/default/OWNERS b/camera/device/3.5/default/OWNERS
new file mode 100644
index 0000000..369b204
--- /dev/null
+++ b/camera/device/3.5/default/OWNERS
@@ -0,0 +1,7 @@
+cychen@google.com
+epeev@google.com
+etalvala@google.com
+jchowdhary@google.com
+shuzhenwang@google.com
+yinchiayeh@google.com
+zhijunhe@google.com
diff --git a/camera/device/3.5/default/include/device_v3_5_impl/CameraDeviceSession.h b/camera/device/3.5/default/include/device_v3_5_impl/CameraDeviceSession.h
new file mode 100644
index 0000000..87d616c
--- /dev/null
+++ b/camera/device/3.5/default/include/device_v3_5_impl/CameraDeviceSession.h
@@ -0,0 +1,261 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_CAMERADEVICE3SESSION_H
+#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_CAMERADEVICE3SESSION_H
+
+#include <android/hardware/camera/device/3.5/ICameraDevice.h>
+#include <android/hardware/camera/device/3.5/ICameraDeviceSession.h>
+#include <android/hardware/camera/device/3.5/ICameraDeviceCallback.h>
+#include <../../3.4/default/include/device_v3_4_impl/CameraDeviceSession.h>
+#include <unordered_map>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::device;
+using ::android::hardware::camera::device::V3_2::BufferStatus;
+using ::android::hardware::camera::device::V3_2::CaptureRequest;
+using ::android::hardware::camera::device::V3_2::StreamBuffer;
+using ::android::hardware::camera::device::V3_5::StreamConfiguration;
+using ::android::hardware::camera::device::V3_4::HalStreamConfiguration;
+using ::android::hardware::camera::device::V3_5::ICameraDeviceSession;
+using ::android::hardware::camera::device::V3_5::ICameraDeviceCallback;
+using ::android::hardware::camera::device::V3_2::implementation::Camera3Stream;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::helper::HandleImporter;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+using ::android::Mutex;
+
+
+/**
+ * Function pointer types with C calling convention to
+ * use for HAL callback functions.
+ */
+extern "C" {
+    typedef camera3_buffer_request_status_t (callbacks_request_stream_buffer_t)(
+            const struct camera3_callback_ops *,
+            uint32_t num_buffer_reqs,
+            const camera3_buffer_request_t *buffer_reqs,
+            /*out*/uint32_t *num_returned_buf_reqs,
+            /*out*/camera3_stream_buffer_ret_t *returned_buf_reqs);
+
+    typedef void (callbacks_return_stream_buffer_t)(
+            const struct camera3_callback_ops *,
+            uint32_t num_buffers,
+            const camera3_stream_buffer_t* const* buffers);
+}
+
+struct CameraDeviceSession : public V3_4::implementation::CameraDeviceSession {
+
+    CameraDeviceSession(camera3_device_t*,
+            const camera_metadata_t* deviceInfo,
+            const sp<V3_2::ICameraDeviceCallback>&);
+    virtual ~CameraDeviceSession();
+
+    virtual sp<V3_2::ICameraDeviceSession> getInterface() override {
+        return new TrampolineSessionInterface_3_5(this);
+    }
+
+protected:
+    // Methods from v3.4 and earlier will trampoline to inherited implementation
+    Return<void> configureStreams_3_5(
+            const StreamConfiguration& requestedConfiguration,
+            ICameraDeviceSession::configureStreams_3_5_cb _hidl_cb);
+
+    Return<void> signalStreamFlush(
+            const hidl_vec<int32_t>& streamIds,
+            uint32_t streamConfigCounter);
+
+    virtual Status importRequest(
+            const CaptureRequest& request,
+            hidl_vec<buffer_handle_t*>& allBufPtrs,
+            hidl_vec<int>& allFences) override;
+
+    Return<void> isReconfigurationRequired(const V3_2::CameraMetadata& oldSessionParams,
+            const V3_2::CameraMetadata& newSessionParams,
+            ICameraDeviceSession::isReconfigurationRequired_cb _hidl_cb);
+    /**
+     * Static callback forwarding methods from HAL to instance
+     */
+    static callbacks_request_stream_buffer_t sRequestStreamBuffers;
+    static callbacks_return_stream_buffer_t sReturnStreamBuffers;
+
+    camera3_buffer_request_status_t requestStreamBuffers(
+            uint32_t num_buffer_reqs,
+            const camera3_buffer_request_t *buffer_reqs,
+            /*out*/uint32_t *num_returned_buf_reqs,
+            /*out*/camera3_stream_buffer_ret_t *returned_buf_reqs);
+
+    void returnStreamBuffers(
+            uint32_t num_buffers,
+            const camera3_stream_buffer_t* const* buffers);
+
+    struct BufferHasher {
+        size_t operator()(const buffer_handle_t& buf) const {
+            if (buf == nullptr)
+                return 0;
+
+            size_t result = 1;
+            result = 31 * result + buf->numFds;
+            for (int i = 0; i < buf->numFds; i++) {
+                result = 31 * result + buf->data[i];
+            }
+            return result;
+        }
+    };
+
+    struct BufferComparator {
+        bool operator()(const buffer_handle_t& buf1, const buffer_handle_t& buf2) const {
+            if (buf1->numFds == buf2->numFds) {
+                for (int i = 0; i < buf1->numFds; i++) {
+                    if (buf1->data[i] != buf2->data[i]) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+            return false;
+        }
+    };
+
+    Camera3Stream* getStreamPointer(int32_t streamId);
+
+    // Register buffer to mBufferIdMaps so we can find corresponding bufferId
+    // when the buffer is returned to camera service
+    void pushBufferId(const buffer_handle_t& buf, uint64_t bufferId, int streamId);
+
+    // Method to pop buffer's bufferId from mBufferIdMaps
+    // BUFFER_ID_NO_BUFFER is returned if no matching buffer is found
+    uint64_t popBufferId(const buffer_handle_t& buf, int streamId);
+
+    // Method to cleanup imported buffer/fences if requestStreamBuffers fails half way
+    void cleanupInflightBufferFences(
+            std::vector<int>& fences, std::vector<std::pair<buffer_handle_t, int>>& bufs);
+
+    // Overrides the default constructCaptureResult behavior for buffer management APIs
+    virtual uint64_t getCapResultBufferId(const buffer_handle_t& buf, int streamId) override;
+
+    std::mutex mBufferIdMapLock; // protecting mBufferIdMaps and mNextBufferId
+    typedef std::unordered_map<const buffer_handle_t, uint64_t,
+            BufferHasher, BufferComparator> BufferIdMap;
+    // stream ID -> per stream buffer ID map for buffers coming from requestStreamBuffers API
+    // Entries are created during requestStreamBuffers when a stream first request a buffer, and
+    // deleted in returnStreamBuffers/processCaptureResult* when all buffers are returned
+    std::unordered_map<int, BufferIdMap> mBufferIdMaps;
+
+    sp<ICameraDeviceCallback> mCallback_3_5;
+    bool mSupportBufMgr;
+
+private:
+
+    struct TrampolineSessionInterface_3_5 : public ICameraDeviceSession {
+        TrampolineSessionInterface_3_5(sp<CameraDeviceSession> parent) :
+                mParent(parent) {}
+
+        virtual Return<void> constructDefaultRequestSettings(
+                V3_2::RequestTemplate type,
+                V3_3::ICameraDeviceSession::constructDefaultRequestSettings_cb _hidl_cb) override {
+            return mParent->constructDefaultRequestSettings(type, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams(
+                const V3_2::StreamConfiguration& requestedConfiguration,
+                V3_3::ICameraDeviceSession::configureStreams_cb _hidl_cb) override {
+            return mParent->configureStreams(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> processCaptureRequest_3_4(
+                const hidl_vec<V3_4::CaptureRequest>& requests,
+                const hidl_vec<V3_2::BufferCache>& cachesToRemove,
+                ICameraDeviceSession::processCaptureRequest_3_4_cb _hidl_cb) override {
+            return mParent->processCaptureRequest_3_4(requests, cachesToRemove, _hidl_cb);
+        }
+
+        virtual Return<void> processCaptureRequest(const hidl_vec<V3_2::CaptureRequest>& requests,
+                const hidl_vec<V3_2::BufferCache>& cachesToRemove,
+                V3_3::ICameraDeviceSession::processCaptureRequest_cb _hidl_cb) override {
+            return mParent->processCaptureRequest(requests, cachesToRemove, _hidl_cb);
+        }
+
+        virtual Return<void> getCaptureRequestMetadataQueue(
+                V3_3::ICameraDeviceSession::getCaptureRequestMetadataQueue_cb _hidl_cb) override  {
+            return mParent->getCaptureRequestMetadataQueue(_hidl_cb);
+        }
+
+        virtual Return<void> getCaptureResultMetadataQueue(
+                V3_3::ICameraDeviceSession::getCaptureResultMetadataQueue_cb _hidl_cb) override  {
+            return mParent->getCaptureResultMetadataQueue(_hidl_cb);
+        }
+
+        virtual Return<Status> flush() override {
+            return mParent->flush();
+        }
+
+        virtual Return<void> close() override {
+            return mParent->close();
+        }
+
+        virtual Return<void> configureStreams_3_3(
+                const V3_2::StreamConfiguration& requestedConfiguration,
+                configureStreams_3_3_cb _hidl_cb) override {
+            return mParent->configureStreams_3_3(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams_3_4(
+                const V3_4::StreamConfiguration& requestedConfiguration,
+                configureStreams_3_4_cb _hidl_cb) override {
+            return mParent->configureStreams_3_4(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams_3_5(
+                const StreamConfiguration& requestedConfiguration,
+                configureStreams_3_5_cb _hidl_cb) override {
+            return mParent->configureStreams_3_5(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> signalStreamFlush(
+                const hidl_vec<int32_t>& requests,
+                uint32_t streamConfigCounter) override {
+            return mParent->signalStreamFlush(requests, streamConfigCounter);
+        }
+
+        virtual Return<void> isReconfigurationRequired(const V3_2::CameraMetadata& oldSessionParams,
+                const V3_2::CameraMetadata& newSessionParams,
+                ICameraDeviceSession::isReconfigurationRequired_cb _hidl_cb) override {
+            return mParent->isReconfigurationRequired(oldSessionParams, newSessionParams, _hidl_cb);
+        }
+    private:
+        sp<CameraDeviceSession> mParent;
+    };
+};
+
+}  // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_CAMERADEVICE3SESSION_H
diff --git a/camera/device/3.5/default/include/device_v3_5_impl/CameraDevice_3_5.h b/camera/device/3.5/default/include/device_v3_5_impl/CameraDevice_3_5.h
new file mode 100644
index 0000000..76c8cf8
--- /dev/null
+++ b/camera/device/3.5/default/include/device_v3_5_impl/CameraDevice_3_5.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_CAMERADEVICE_H
+#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_CAMERADEVICE_H
+
+#include "CameraDeviceSession.h"
+#include <../../../../3.4/default/include/device_v3_4_impl/CameraDevice_3_4.h>
+
+#include <android/hardware/camera/device/3.5/ICameraDevice.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::device;
+
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_string;
+using ::android::hardware::camera::common::V1_0::TorchMode;
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::sp;
+
+struct CameraDevice : public V3_4::implementation::CameraDevice {
+    // Called by provider HAL.
+    // Provider HAL must ensure the uniqueness of CameraDevice object per cameraId, or there could
+    // be multiple CameraDevice trying to access the same physical camera.  Also, provider will have
+    // to keep track of all CameraDevice objects in order to notify CameraDevice when the underlying
+    // camera is detached.
+    // Delegates nearly all work to CameraDevice_3_4
+    CameraDevice(sp<CameraModule> module,
+                 const std::string& cameraId,
+                 const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames);
+    virtual ~CameraDevice();
+
+    virtual sp<V3_2::ICameraDevice> getInterface() override {
+        return new TrampolineDeviceInterface_3_5(this);
+    }
+
+protected:
+    virtual sp<V3_2::implementation::CameraDeviceSession> createSession(camera3_device_t*,
+            const camera_metadata_t* deviceInfo,
+            const sp<V3_2::ICameraDeviceCallback>&) override;
+
+    Return<void> getPhysicalCameraCharacteristics(const hidl_string& physicalCameraId,
+            V3_5::ICameraDevice::getPhysicalCameraCharacteristics_cb _hidl_cb);
+
+    Return<void> isStreamCombinationSupported(
+            const V3_4::StreamConfiguration& streams,
+            V3_5::ICameraDevice::isStreamCombinationSupported_cb _hidl_cb);
+
+private:
+    struct TrampolineDeviceInterface_3_5 : public ICameraDevice {
+        TrampolineDeviceInterface_3_5(sp<CameraDevice> parent) :
+            mParent(parent) {}
+
+        virtual Return<void> getResourceCost(V3_2::ICameraDevice::getResourceCost_cb _hidl_cb)
+                override {
+            return mParent->getResourceCost(_hidl_cb);
+        }
+
+        virtual Return<void> getCameraCharacteristics(
+                V3_2::ICameraDevice::getCameraCharacteristics_cb _hidl_cb) override {
+            return mParent->getCameraCharacteristics(_hidl_cb);
+        }
+
+        virtual Return<Status> setTorchMode(TorchMode mode) override {
+            return mParent->setTorchMode(mode);
+        }
+
+        virtual Return<void> open(const sp<V3_2::ICameraDeviceCallback>& callback,
+                V3_2::ICameraDevice::open_cb _hidl_cb) override {
+            return mParent->open(callback, _hidl_cb);
+        }
+
+        virtual Return<void> dumpState(const hidl_handle& fd) override {
+            return mParent->dumpState(fd);
+        }
+
+        virtual Return<void> getPhysicalCameraCharacteristics(const hidl_string& physicalCameraId,
+                V3_5::ICameraDevice::getPhysicalCameraCharacteristics_cb _hidl_cb) override {
+            return mParent->getPhysicalCameraCharacteristics(physicalCameraId, _hidl_cb);
+        }
+
+        virtual Return<void> isStreamCombinationSupported(
+                const V3_4::StreamConfiguration& streams,
+                V3_5::ICameraDevice::isStreamCombinationSupported_cb _hidl_cb) override {
+            return mParent->isStreamCombinationSupported(streams, _hidl_cb);
+        }
+
+    private:
+        sp<CameraDevice> mParent;
+    };
+};
+
+}  // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif // ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_CAMERADEVICE_H
diff --git a/camera/device/3.5/default/include/ext_device_v3_5_impl/ExternalCameraDeviceSession.h b/camera/device/3.5/default/include/ext_device_v3_5_impl/ExternalCameraDeviceSession.h
new file mode 100644
index 0000000..d2b5e89
--- /dev/null
+++ b/camera/device/3.5/default/include/ext_device_v3_5_impl/ExternalCameraDeviceSession.h
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_EXTCAMERADEVICE3SESSION_H
+#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_EXTCAMERADEVICE3SESSION_H
+
+#include <android/hardware/camera/device/3.5/ICameraDeviceCallback.h>
+#include <android/hardware/camera/device/3.5/ICameraDeviceSession.h>
+#include <../../3.4/default/include/ext_device_v3_4_impl/ExternalCameraDeviceSession.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+using ::android::hardware::camera::device::V3_2::BufferCache;
+using ::android::hardware::camera::device::V3_5::BufferRequest;
+using ::android::hardware::camera::device::V3_5::BufferRequestStatus;
+using ::android::hardware::camera::device::V3_2::BufferStatus;
+using ::android::hardware::camera::device::V3_2::CameraMetadata;
+using ::android::hardware::camera::device::V3_2::CaptureRequest;
+using ::android::hardware::camera::device::V3_2::CaptureResult;
+using ::android::hardware::camera::device::V3_2::ErrorCode;
+using ::android::hardware::camera::device::V3_5::ICameraDeviceCallback;
+using ::android::hardware::camera::device::V3_2::MsgType;
+using ::android::hardware::camera::device::V3_2::NotifyMsg;
+using ::android::hardware::camera::device::V3_2::RequestTemplate;
+using ::android::hardware::camera::device::V3_2::Stream;
+using ::android::hardware::camera::device::V3_5::StreamConfiguration;
+using ::android::hardware::camera::device::V3_2::StreamConfigurationMode;
+using ::android::hardware::camera::device::V3_2::StreamRotation;
+using ::android::hardware::camera::device::V3_2::StreamType;
+using ::android::hardware::camera::device::V3_2::DataspaceFlags;
+using ::android::hardware::camera::device::V3_2::CameraBlob;
+using ::android::hardware::camera::device::V3_2::CameraBlobId;
+using ::android::hardware::camera::device::V3_4::HalStreamConfiguration;
+using ::android::hardware::camera::device::V3_5::ICameraDeviceSession;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::helper::HandleImporter;
+using ::android::hardware::camera::common::V1_0::helper::ExifUtils;
+using ::android::hardware::camera::external::common::ExternalCameraConfig;
+using ::android::hardware::camera::external::common::Size;
+using ::android::hardware::camera::external::common::SizeHasher;
+using ::android::hardware::graphics::common::V1_0::BufferUsage;
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+using ::android::hardware::kSynchronizedReadWrite;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+using ::android::Mutex;
+using ::android::base::unique_fd;
+
+using ::android::hardware::camera::device::V3_4::implementation::SupportedV4L2Format;
+using ::android::hardware::camera::device::V3_4::implementation::CroppingType;
+
+struct ExternalCameraDeviceSession : public V3_4::implementation::ExternalCameraDeviceSession {
+
+    ExternalCameraDeviceSession(const sp<V3_2::ICameraDeviceCallback>&,
+            const ExternalCameraConfig& cfg,
+            const std::vector<SupportedV4L2Format>& sortedFormats,
+            const CroppingType& croppingType,
+            const common::V1_0::helper::CameraMetadata& chars,
+            const std::string& cameraId,
+            unique_fd v4l2Fd);
+    virtual ~ExternalCameraDeviceSession();
+
+    // Retrieve the HIDL interface, split into its own class to avoid inheritance issues when
+    // dealing with minor version revs and simultaneous implementation and interface inheritance
+    virtual sp<V3_4::ICameraDeviceSession> getInterface() override {
+        return new TrampolineSessionInterface_3_5(this);
+    }
+
+    static Status isStreamCombinationSupported(const V3_2::StreamConfiguration& config,
+            const std::vector<SupportedV4L2Format>& supportedFormats) {
+        return V3_4::implementation::ExternalCameraDeviceSession::isStreamCombinationSupported(
+                config, supportedFormats);
+    }
+
+protected:
+    // Methods from v3.4 and earlier will trampoline to inherited implementation
+    Return<void> configureStreams_3_5(
+            const StreamConfiguration& requestedConfiguration,
+            ICameraDeviceSession::configureStreams_3_5_cb _hidl_cb);
+
+    Return<void> signalStreamFlush(
+            const hidl_vec<int32_t>& requests,
+            uint32_t streamConfigCounter);
+
+    Return<void> isReconfigurationRequired(const V3_2::CameraMetadata& oldSessionParams,
+            const V3_2::CameraMetadata& newSessionParams,
+            ICameraDeviceSession::isReconfigurationRequired_cb _hidl_cb);
+
+    virtual void initOutputThread() override;
+    virtual void closeOutputThread() override;
+    void closeOutputThreadImpl();
+
+    virtual Status importRequestLocked(
+            const CaptureRequest& request,
+            hidl_vec<buffer_handle_t*>& allBufPtrs,
+            hidl_vec<int>& allFences) override;
+
+    class BufferRequestThread : public android::Thread {
+    public:
+        BufferRequestThread(
+                wp<ExternalCameraDeviceSession> parent,
+                sp<V3_5::ICameraDeviceCallback> callbacks);
+
+        int requestBufferStart(const std::vector<HalStreamBuffer>&);
+        int waitForBufferRequestDone(
+                /*out*/std::vector<HalStreamBuffer>*);
+
+        virtual bool threadLoop() override;
+
+    private:
+        void waitForNextRequest();
+
+        const wp<ExternalCameraDeviceSession> mParent;
+        const sp<V3_5::ICameraDeviceCallback> mCallbacks;
+
+        std::mutex mLock;
+        bool mRequestingBuffer = false;
+
+        std::vector<HalStreamBuffer> mBufferReqs;
+        std::vector<HalStreamBuffer> mPendingReturnBufferReqs;
+        // mHalBufferReqs is not under mLock protection during the HIDL transaction
+        hidl_vec<BufferRequest>      mHalBufferReqs;
+
+        // request buffers takes much less time in steady state, but can take much longer
+        // when requesting 1st buffer from a stream.
+        // TODO: consider a separate timeout for new vs. steady state?
+        // TODO: or make sure framework is warming up the pipeline during configure new stream?
+        static const int kReqProcTimeoutMs = 66;
+
+        static const int kReqWaitTimeoutMs = 33;
+        static const int kReqWaitTimesWarn = 90;  // 33ms * 90 ~= 3 sec
+        std::condition_variable mRequestCond;     // signaled when a new buffer request incoming
+        std::condition_variable mRequestDoneCond; // signaled when a request is done
+    };
+
+    sp<BufferRequestThread> mBufferRequestThread;
+
+    class OutputThread :
+            public V3_4::implementation::ExternalCameraDeviceSession::OutputThread {
+    public:
+        // TODO: pass buffer request thread to OutputThread ctor
+        OutputThread(wp<ExternalCameraDeviceSession> parent, CroppingType,
+                sp<BufferRequestThread> bufReqThread);
+        virtual ~OutputThread();
+
+    protected:
+        // Methods to request output buffer in parallel
+        virtual int requestBufferStart(const std::vector<HalStreamBuffer>&) override;
+        virtual int waitForBufferRequestDone(
+                /*out*/std::vector<HalStreamBuffer>*) override;
+
+        const sp<BufferRequestThread> mBufferRequestThread;
+    };
+
+    sp<V3_5::ICameraDeviceCallback> mCallback_3_5;
+    bool mSupportBufMgr;
+
+private:
+
+    struct TrampolineSessionInterface_3_5 : public ICameraDeviceSession {
+        TrampolineSessionInterface_3_5(sp<ExternalCameraDeviceSession> parent) :
+                mParent(parent) {}
+
+        virtual Return<void> constructDefaultRequestSettings(
+                RequestTemplate type,
+                V3_3::ICameraDeviceSession::constructDefaultRequestSettings_cb _hidl_cb) override {
+            return mParent->constructDefaultRequestSettings(type, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams(
+                const V3_2::StreamConfiguration& requestedConfiguration,
+                V3_3::ICameraDeviceSession::configureStreams_cb _hidl_cb) override {
+            return mParent->configureStreams(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> processCaptureRequest(const hidl_vec<V3_2::CaptureRequest>& requests,
+                const hidl_vec<V3_2::BufferCache>& cachesToRemove,
+                V3_3::ICameraDeviceSession::processCaptureRequest_cb _hidl_cb) override {
+            return mParent->processCaptureRequest(requests, cachesToRemove, _hidl_cb);
+        }
+
+        virtual Return<void> getCaptureRequestMetadataQueue(
+                V3_3::ICameraDeviceSession::getCaptureRequestMetadataQueue_cb _hidl_cb) override  {
+            return mParent->getCaptureRequestMetadataQueue(_hidl_cb);
+        }
+
+        virtual Return<void> getCaptureResultMetadataQueue(
+                V3_3::ICameraDeviceSession::getCaptureResultMetadataQueue_cb _hidl_cb) override  {
+            return mParent->getCaptureResultMetadataQueue(_hidl_cb);
+        }
+
+        virtual Return<Status> flush() override {
+            return mParent->flush();
+        }
+
+        virtual Return<void> close() override {
+            return mParent->close();
+        }
+
+        virtual Return<void> configureStreams_3_3(
+                const V3_2::StreamConfiguration& requestedConfiguration,
+                configureStreams_3_3_cb _hidl_cb) override {
+            return mParent->configureStreams_3_3(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams_3_4(
+                const V3_4::StreamConfiguration& requestedConfiguration,
+                configureStreams_3_4_cb _hidl_cb) override {
+            return mParent->configureStreams_3_4(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> processCaptureRequest_3_4(const hidl_vec<V3_4::CaptureRequest>& requests,
+                const hidl_vec<V3_2::BufferCache>& cachesToRemove,
+                ICameraDeviceSession::processCaptureRequest_3_4_cb _hidl_cb) override {
+            return mParent->processCaptureRequest_3_4(requests, cachesToRemove, _hidl_cb);
+        }
+
+        virtual Return<void> configureStreams_3_5(
+                const StreamConfiguration& requestedConfiguration,
+                configureStreams_3_5_cb _hidl_cb) override {
+            return mParent->configureStreams_3_5(requestedConfiguration, _hidl_cb);
+        }
+
+        virtual Return<void> signalStreamFlush(
+                const hidl_vec<int32_t>& requests,
+                uint32_t streamConfigCounter) override {
+            return mParent->signalStreamFlush(requests, streamConfigCounter);
+        }
+
+        virtual Return<void> isReconfigurationRequired(const V3_2::CameraMetadata& oldSessionParams,
+                const V3_2::CameraMetadata& newSessionParams,
+                ICameraDeviceSession::isReconfigurationRequired_cb _hidl_cb) override {
+            return mParent->isReconfigurationRequired(oldSessionParams, newSessionParams, _hidl_cb);
+        }
+
+    private:
+        sp<ExternalCameraDeviceSession> mParent;
+    };
+};
+
+}  // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_EXTCAMERADEVICE3SESSION_H
diff --git a/camera/device/3.5/default/include/ext_device_v3_5_impl/ExternalCameraDevice_3_5.h b/camera/device/3.5/default/include/ext_device_v3_5_impl/ExternalCameraDevice_3_5.h
new file mode 100644
index 0000000..b73490c
--- /dev/null
+++ b/camera/device/3.5/default/include/ext_device_v3_5_impl/ExternalCameraDevice_3_5.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_EXTCAMERADEVICE_H
+#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_EXTCAMERADEVICE_H
+
+#include "utils/Mutex.h"
+#include "CameraMetadata.h"
+
+#include <android/hardware/camera/device/3.5/ICameraDevice.h>
+#include <android/hardware/camera/device/3.5/ICameraDeviceCallback.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+#include "ExternalCameraDeviceSession.h"
+#include <../../../../3.4/default/include/ext_device_v3_4_impl/ExternalCameraDevice_3_4.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_5 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::device;
+using ::android::hardware::camera::device::V3_5::ICameraDevice;
+using ::android::hardware::camera::common::V1_0::CameraResourceCost;
+using ::android::hardware::camera::common::V1_0::TorchMode;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::external::common::ExternalCameraConfig;
+using ::android::hardware::camera::external::common::Size;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+
+/*
+ * The camera device HAL implementation is opened lazily (via the open call)
+ */
+struct ExternalCameraDevice : public V3_4::implementation::ExternalCameraDevice {
+
+    // Called by external camera provider HAL.
+    // Provider HAL must ensure the uniqueness of CameraDevice object per cameraId, or there could
+    // be multiple CameraDevice trying to access the same physical camera.  Also, provider will have
+    // to keep track of all CameraDevice objects in order to notify CameraDevice when the underlying
+    // camera is detached.
+    ExternalCameraDevice(const std::string& cameraId, const ExternalCameraConfig& cfg);
+    virtual ~ExternalCameraDevice();
+
+    virtual sp<V3_2::ICameraDevice> getInterface() override {
+        return new TrampolineDeviceInterface_3_5(this);
+    }
+
+    Return<void> getPhysicalCameraCharacteristics(const hidl_string& physicalCameraId,
+            V3_5::ICameraDevice::getPhysicalCameraCharacteristics_cb _hidl_cb);
+
+    Return<void> isStreamCombinationSupported(
+            const V3_4::StreamConfiguration& streams,
+            V3_5::ICameraDevice::isStreamCombinationSupported_cb _hidl_cb);
+
+protected:
+    virtual sp<V3_4::implementation::ExternalCameraDeviceSession> createSession(
+            const sp<V3_2::ICameraDeviceCallback>&,
+            const ExternalCameraConfig& cfg,
+            const std::vector<SupportedV4L2Format>& sortedFormats,
+            const CroppingType& croppingType,
+            const common::V1_0::helper::CameraMetadata& chars,
+            const std::string& cameraId,
+            unique_fd v4l2Fd) override;
+
+    virtual status_t initDefaultCharsKeys(
+            ::android::hardware::camera::common::V1_0::helper::CameraMetadata*) override;
+
+    const std::vector<int32_t> EXTRA_CHARACTERISTICS_KEYS_3_5 = {
+        ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION
+    };
+
+private:
+    struct TrampolineDeviceInterface_3_5 : public ICameraDevice {
+        TrampolineDeviceInterface_3_5(sp<ExternalCameraDevice> parent) :
+            mParent(parent) {}
+
+        virtual Return<void> getResourceCost(V3_2::ICameraDevice::getResourceCost_cb _hidl_cb)
+                override {
+            return mParent->getResourceCost(_hidl_cb);
+        }
+
+        virtual Return<void> getCameraCharacteristics(
+                V3_2::ICameraDevice::getCameraCharacteristics_cb _hidl_cb) override {
+            return mParent->getCameraCharacteristics(_hidl_cb);
+        }
+
+        virtual Return<Status> setTorchMode(TorchMode mode) override {
+            return mParent->setTorchMode(mode);
+        }
+
+        virtual Return<void> open(const sp<V3_2::ICameraDeviceCallback>& callback,
+                V3_2::ICameraDevice::open_cb _hidl_cb) override {
+            return mParent->open(callback, _hidl_cb);
+        }
+
+        virtual Return<void> dumpState(const hidl_handle& fd) override {
+            return mParent->dumpState(fd);
+        }
+
+        virtual Return<void> getPhysicalCameraCharacteristics(const hidl_string& physicalCameraId,
+                V3_5::ICameraDevice::getPhysicalCameraCharacteristics_cb _hidl_cb) override {
+            return mParent->getPhysicalCameraCharacteristics(physicalCameraId, _hidl_cb);
+        }
+
+        virtual Return<void> isStreamCombinationSupported(
+                const V3_4::StreamConfiguration& streams,
+                V3_5::ICameraDevice::isStreamCombinationSupported_cb _hidl_cb) override {
+            return mParent->isStreamCombinationSupported(streams, _hidl_cb);
+        }
+
+    private:
+        sp<ExternalCameraDevice> mParent;
+    };
+};
+
+}  // namespace implementation
+}  // namespace V3_5
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_DEVICE_V3_5_EXTCAMERADEVICE_H
diff --git a/camera/device/3.5/types.hal b/camera/device/3.5/types.hal
new file mode 100644
index 0000000..e3c2350
--- /dev/null
+++ b/camera/device/3.5/types.hal
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.device@3.5;
+
+import @3.2::StreamBuffer;
+import @3.4::StreamConfiguration;
+import @3.2::CameraBlobId;
+
+/**
+ * StreamConfiguration:
+ *
+ * Identical to @3.4::StreamConfiguration, except that it contains streamConfigCounter
+ */
+struct StreamConfiguration {
+    @3.4::StreamConfiguration v3_4;
+
+    /**
+     * An incrementing counter used for HAL to keep track of the stream
+     * configuration and the paired oneway signalStreamFlush call. When the
+     * counter in signalStreamFlush call is less than the counter here, that
+     * signalStreamFlush call is stale.
+     */
+    uint32_t streamConfigCounter;
+};
+
+enum StreamBufferRequestError : uint32_t {
+    /**
+     * Get buffer failed due to timeout waiting for an available buffer. This is
+     * likely due to the client application holding too many buffers, or the
+     * system is under memory pressure.
+     * This is not a fatal error. HAL may try to request buffer for this stream
+     * later. If HAL cannot get a buffer for certain capture request in time
+     * due to this error, HAL can send an ERROR_REQUEST to camera service and
+     * drop processing that request.
+     */
+    NO_BUFFER_AVAILABLE = 1,
+
+    /**
+     * Get buffer failed due to HAL has reached its maxBuffer count. This is not
+     * a fatal error. HAL may try to request buffer for this stream again after
+     * it returns at least one buffer of that stream to camera service.
+     */
+    MAX_BUFFER_EXCEEDED = 2,
+
+    /**
+     * Get buffer failed due to the stream is disconnected by client
+     * application, has been removed, or not recognized by camera service.
+     * This means application is no longer interested in this stream.
+     * Requesting buffer for this stream must never succeed after this error is
+     * returned. HAL must safely return all buffers of this stream after
+     * getting this error. If HAL gets another capture request later targeting
+     * a disconnected stream, HAL must send an ERROR_REQUEST to camera service
+     * and drop processing that request.
+     */
+    STREAM_DISCONNECTED = 3,
+
+    /**
+     * Get buffer failed for unknown reasons. This is a fatal error and HAL must
+     * send ERROR_DEVICE to camera service and be ready to be closed.
+     */
+    UNKNOWN_ERROR = 4
+};
+
+/**
+ * Per-stream return value for requestStreamBuffers.
+ * For each stream, either an StreamBufferRequestError error code, or all
+ * requested buffers for this stream is returned, so buffers.size() must be
+ * equal to BufferRequest::numBuffersRequested of corresponding stream.
+ */
+safe_union StreamBuffersVal {
+    StreamBufferRequestError error;
+    vec<@3.2::StreamBuffer> buffers;
+};
+
+struct StreamBufferRet {
+    int32_t streamId;
+    StreamBuffersVal val;
+};
+
+enum BufferRequestStatus : uint32_t {
+    /**
+     * Method call succeeded and all requested buffers are returned.
+     */
+    OK = 0,
+
+    /**
+     * Method call failed for some streams. Check per stream status for each
+     * returned StreamBufferRet.
+     */
+    FAILED_PARTIAL = 1,
+
+    /**
+     * Method call failed for all streams and no buffers are returned at all.
+     * Camera service is about to or is performing configureStreams. HAL must
+     * wait until next configureStreams call is finished before requesting
+     * buffers again.
+     */
+    FAILED_CONFIGURING = 2,
+
+    /**
+     * Method call failed for all streams and no buffers are returned at all.
+     * Failure due to bad BufferRequest input, eg: unknown streamId or repeated
+     * streamId.
+     */
+    FAILED_ILLEGAL_ARGUMENTS = 3,
+
+    /**
+     * Method call failed for all streams and no buffers are returned at all.
+     * Failure due to unknown reason, or all streams has individual failing
+     * reason. For the latter case, check per stream status for each returned
+     * StreamBufferRet.
+     */
+    FAILED_UNKNOWN = 4,
+};
+
+struct BufferRequest {
+    int32_t streamId;
+    uint32_t numBuffersRequested;
+};
+
+/**
+ * CameraBlob:
+ *
+ * Identical to @3.2::CameraBlob, except that it also supports transport of JPEG
+ * APP segments blob, which contains JPEG APP1 to APPn (Application Marker)
+ * segments as specified in JEITA CP-3451.
+ *
+ * To capture a JPEG APP segments blob, a stream is created using the pixel format
+ * HAL_PIXEL_FORMAT_BLOB and dataspace HAL_DATASPACE_JPEG_APP_SEGMENTS. The buffer
+ * size for the stream is calculated by the framework, based on the static
+ * metadata field android.heic.maxAppSegmentsCount.
+ *
+ * Similar to JPEG image, the JPEG APP segment images can be of variable size,
+ * so the HAL needs to include the final size of all APP segments using this
+ * structure inside the output stream buffer. The camera blob ID field must be
+ * set to CameraBlobId::JPEG_APP_SEGMENTS.
+ *
+ * The transport header must be at the end of the JPEG APP segments output stream
+ * buffer. That means the blobId must start at byte[buffer_size -
+ * sizeof(CameraBlob)], where the buffer_size is the size of gralloc
+ * buffer. The JPEG APP segments data itself starts at the beginning of the
+ * buffer and must be blobSize bytes long.
+ */
+enum CameraBlobId : @3.2::CameraBlobId {
+    JPEG_APP_SEGMENTS = 0x100,
+};
+
+struct CameraBlob {
+    CameraBlobId blobId;
+    uint32_t blobSize;
+};
+
diff --git a/camera/metadata/3.4/Android.bp b/camera/metadata/3.4/Android.bp
new file mode 100644
index 0000000..d1cba14
--- /dev/null
+++ b/camera/metadata/3.4/Android.bp
@@ -0,0 +1,31 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.camera.metadata@3.4",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+    ],
+    interfaces: [
+        "android.hardware.camera.metadata@3.2",
+        "android.hardware.camera.metadata@3.3",
+    ],
+    types: [
+        "CameraMetadataEnumAndroidDepthAvailableDynamicDepthStreamConfigurations",
+        "CameraMetadataEnumAndroidHeicAvailableHeicStreamConfigurations",
+        "CameraMetadataEnumAndroidHeicInfoSupported",
+        "CameraMetadataEnumAndroidInfoSupportedBufferManagementVersion",
+        "CameraMetadataEnumAndroidRequestAvailableCapabilities",
+        "CameraMetadataEnumAndroidScalerAvailableFormats",
+        "CameraMetadataEnumAndroidScalerAvailableRecommendedStreamConfigurations",
+        "CameraMetadataEnumAndroidSensorInfoColorFilterArrangement",
+        "CameraMetadataSection",
+        "CameraMetadataSectionStart",
+        "CameraMetadataTag",
+    ],
+    gen_java: true,
+}
+
diff --git a/camera/metadata/3.4/types.hal b/camera/metadata/3.4/types.hal
new file mode 100644
index 0000000..bb630f1
--- /dev/null
+++ b/camera/metadata/3.4/types.hal
@@ -0,0 +1,260 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Autogenerated from camera metadata definitions in
+ * /system/media/camera/docs/metadata_definitions.xml
+ * *** DO NOT EDIT BY HAND ***
+ */
+
+package android.hardware.camera.metadata@3.4;
+
+/* Include definitions from all prior minor HAL metadata revisions */
+import android.hardware.camera.metadata@3.2;
+import android.hardware.camera.metadata@3.3;
+
+/**
+ * Top level hierarchy definitions for camera metadata. *_INFO sections are for
+ * the static metadata that can be retrived without opening the camera device.
+ */
+enum CameraMetadataSection : @3.3::CameraMetadataSection {
+    ANDROID_HEIC =
+        android.hardware.camera.metadata@3.3::CameraMetadataSection:ANDROID_SECTION_COUNT,
+
+    ANDROID_HEIC_INFO,
+
+    ANDROID_SECTION_COUNT_3_4,
+
+    VENDOR_SECTION_3_4 = 0x8000,
+
+};
+
+/**
+ * Hierarchy positions in enum space. All vendor extension sections must be
+ * defined with tag >= VENDOR_SECTION_START
+ */
+enum CameraMetadataSectionStart : android.hardware.camera.metadata@3.3::CameraMetadataSectionStart {
+    ANDROID_HEIC_START = CameraMetadataSection:ANDROID_HEIC << 16,
+
+    ANDROID_HEIC_INFO_START = CameraMetadataSection:ANDROID_HEIC_INFO << 16,
+
+    VENDOR_SECTION_START_3_4 = CameraMetadataSection:VENDOR_SECTION_3_4 << 16,
+
+};
+
+/**
+ * Main enumeration for defining camera metadata tags added in this revision
+ *
+ * <p>Partial documentation is included for each tag; for complete documentation, reference
+ * '/system/media/camera/docs/docs.html' in the corresponding Android source tree.</p>
+ */
+enum CameraMetadataTag : @3.3::CameraMetadataTag {
+    /** android.request.characteristicKeysNeedingPermission [static, int32[], hidden]
+     *
+     * <p>A list of camera characteristics keys that are only available
+     * in case the camera client has camera permission.</p>
+     */
+    ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION = android.hardware.camera.metadata@3.3::CameraMetadataTag:ANDROID_REQUEST_END_3_3,
+
+    ANDROID_REQUEST_END_3_4,
+
+    /** android.scaler.availableRecommendedStreamConfigurations [static, enum[], ndk_public]
+     *
+     * <p>Recommended stream configurations for common client use cases.</p>
+     */
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS = android.hardware.camera.metadata@3.2::CameraMetadataTag:ANDROID_SCALER_END,
+
+    /** android.scaler.availableRecommendedInputOutputFormatsMap [static, int32, ndk_public]
+     *
+     * <p>Recommended mappings of image formats that are supported by this
+     * camera device for input streams, to their corresponding output formats.</p>
+     */
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_INPUT_OUTPUT_FORMATS_MAP,
+
+    ANDROID_SCALER_END_3_4,
+
+    /** android.info.supportedBufferManagementVersion [static, enum, system]
+     *
+     * <p>The version of buffer management API this camera device supports and opts into.</p>
+     */
+    ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION = android.hardware.camera.metadata@3.3::CameraMetadataTag:ANDROID_INFO_END_3_3,
+
+    ANDROID_INFO_END_3_4,
+
+    /** android.depth.availableRecommendedDepthStreamConfigurations [static, int32[], ndk_public]
+     *
+     * <p>Recommended depth stream configurations for common client use cases.</p>
+     */
+    ANDROID_DEPTH_AVAILABLE_RECOMMENDED_DEPTH_STREAM_CONFIGURATIONS = android.hardware.camera.metadata@3.2::CameraMetadataTag:ANDROID_DEPTH_END,
+
+    /** android.depth.availableDynamicDepthStreamConfigurations [static, enum[], ndk_public]
+     *
+     * <p>The available dynamic depth dataspace stream
+     * configurations that this camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     */
+    ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS,
+
+    /** android.depth.availableDynamicDepthMinFrameDurations [static, int64[], ndk_public]
+     *
+     * <p>This lists the minimum frame duration for each
+     * format/size combination for dynamic depth output streams.</p>
+     */
+    ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_MIN_FRAME_DURATIONS,
+
+    /** android.depth.availableDynamicDepthStallDurations [static, int64[], ndk_public]
+     *
+     * <p>This lists the maximum stall duration for each
+     * output format/size combination for dynamic depth streams.</p>
+     */
+    ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STALL_DURATIONS,
+
+    ANDROID_DEPTH_END_3_4,
+
+    /** android.logicalMultiCamera.activePhysicalId [dynamic, byte, public]
+     *
+     * <p>String containing the ID of the underlying active physical camera.</p>
+     */
+    ANDROID_LOGICAL_MULTI_CAMERA_ACTIVE_PHYSICAL_ID = android.hardware.camera.metadata@3.3::CameraMetadataTag:ANDROID_LOGICAL_MULTI_CAMERA_END_3_3,
+
+    ANDROID_LOGICAL_MULTI_CAMERA_END_3_4,
+
+    /** android.heic.availableHeicStreamConfigurations [static, enum[], ndk_public]
+     *
+     * <p>The available HEIC (ISO/IEC 23008-12) stream
+     * configurations that this camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     */
+    ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS = CameraMetadataSectionStart:ANDROID_HEIC_START,
+
+    /** android.heic.availableHeicMinFrameDurations [static, int64[], ndk_public]
+     *
+     * <p>This lists the minimum frame duration for each
+     * format/size combination for HEIC output formats.</p>
+     */
+    ANDROID_HEIC_AVAILABLE_HEIC_MIN_FRAME_DURATIONS,
+
+    /** android.heic.availableHeicStallDurations [static, int64[], ndk_public]
+     *
+     * <p>This lists the maximum stall duration for each
+     * output format/size combination for HEIC streams.</p>
+     */
+    ANDROID_HEIC_AVAILABLE_HEIC_STALL_DURATIONS,
+
+    ANDROID_HEIC_END_3_4,
+
+    /** android.heic.info.supported [static, enum, system]
+     *
+     * <p>Whether this camera device can support identical set of stream combinations
+     * involving HEIC image format, compared to the
+     * <a href="https://developer.android.com/reference/android/hardware/camera2/CameraDevice.html#createCaptureSession">table of combinations</a>
+     * involving JPEG image format required for the device's hardware level and capabilities.</p>
+     */
+    ANDROID_HEIC_INFO_SUPPORTED = CameraMetadataSectionStart:ANDROID_HEIC_INFO_START,
+
+    /** android.heic.info.maxJpegAppSegmentsCount [static, byte, system]
+     *
+     * <p>The maximum number of Jpeg APP segments supported by the camera HAL device.</p>
+     */
+    ANDROID_HEIC_INFO_MAX_JPEG_APP_SEGMENTS_COUNT,
+
+    ANDROID_HEIC_INFO_END_3_4,
+
+};
+
+/*
+ * Enumeration definitions for the various entries that need them
+ */
+
+/** android.request.availableCapabilities enumeration values added since v3.3
+ * @see ANDROID_REQUEST_AVAILABLE_CAPABILITIES
+ */
+enum CameraMetadataEnumAndroidRequestAvailableCapabilities :
+        @3.3::CameraMetadataEnumAndroidRequestAvailableCapabilities {
+    ANDROID_REQUEST_AVAILABLE_CAPABILITIES_SECURE_IMAGE_DATA,
+};
+
+/** android.scaler.availableFormats enumeration values added since v3.2
+ * @see ANDROID_SCALER_AVAILABLE_FORMATS
+ */
+enum CameraMetadataEnumAndroidScalerAvailableFormats :
+        @3.2::CameraMetadataEnumAndroidScalerAvailableFormats {
+    ANDROID_SCALER_AVAILABLE_FORMATS_RAW10                      = 0x25,
+    ANDROID_SCALER_AVAILABLE_FORMATS_RAW12                      = 0x26,
+    ANDROID_SCALER_AVAILABLE_FORMATS_Y8                         = 0x20203859,
+};
+
+/** android.scaler.availableRecommendedStreamConfigurations enumeration values
+ * @see ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS
+ */
+enum CameraMetadataEnumAndroidScalerAvailableRecommendedStreamConfigurations : uint32_t {
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_PREVIEW
+                                                                 = 0x0,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_RECORD
+                                                                 = 0x1,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_VIDEO_SNAPSHOT
+                                                                 = 0x2,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_SNAPSHOT
+                                                                 = 0x3,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_ZSL
+                                                                 = 0x4,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_RAW
+                                                                 = 0x5,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_PUBLIC_END
+                                                                 = 0x6,
+    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_VENDOR_START
+                                                                 = 0x18,
+};
+
+/** android.sensor.info.colorFilterArrangement enumeration values added since v3.2
+ * @see ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+ */
+enum CameraMetadataEnumAndroidSensorInfoColorFilterArrangement :
+        @3.2::CameraMetadataEnumAndroidSensorInfoColorFilterArrangement {
+    ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_MONO,
+    ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_NIR,
+};
+
+/** android.info.supportedBufferManagementVersion enumeration values
+ * @see ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION
+ */
+enum CameraMetadataEnumAndroidInfoSupportedBufferManagementVersion : uint32_t {
+    ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5,
+};
+
+/** android.depth.availableDynamicDepthStreamConfigurations enumeration values
+ * @see ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS
+ */
+enum CameraMetadataEnumAndroidDepthAvailableDynamicDepthStreamConfigurations : uint32_t {
+    ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS_OUTPUT,
+    ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS_INPUT,
+};
+
+/** android.heic.availableHeicStreamConfigurations enumeration values
+ * @see ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS
+ */
+enum CameraMetadataEnumAndroidHeicAvailableHeicStreamConfigurations : uint32_t {
+    ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS_OUTPUT,
+    ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS_INPUT,
+};
+
+/** android.heic.info.supported enumeration values
+ * @see ANDROID_HEIC_INFO_SUPPORTED
+ */
+enum CameraMetadataEnumAndroidHeicInfoSupported : uint32_t {
+    ANDROID_HEIC_INFO_SUPPORTED_FALSE,
+    ANDROID_HEIC_INFO_SUPPORTED_TRUE,
+};
diff --git a/camera/provider/2.4/default/Android.bp b/camera/provider/2.4/default/Android.bp
index ae24d78..9d73934 100644
--- a/camera/provider/2.4/default/Android.bp
+++ b/camera/provider/2.4/default/Android.bp
@@ -1,88 +1,194 @@
 cc_library_shared {
-    name: "android.hardware.camera.provider@2.4-impl",
+    name: "android.hardware.camera.provider@2.4-legacy",
     defaults: ["hidl_defaults"],
     proprietary: true,
-    relative_install_path: "hw",
-    srcs: ["CameraProvider.cpp",
-           "ExternalCameraProvider.cpp"],
+    srcs: ["LegacyCameraProviderImpl_2_4.cpp"],
     shared_libs: [
-        "libhidlbase",
-        "libhidltransport",
-        "libutils",
-        "libcutils",
+        "android.hardware.camera.common@1.0",
         "android.hardware.camera.device@1.0",
         "android.hardware.camera.device@3.2",
         "android.hardware.camera.device@3.3",
         "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
         "camera.device@1.0-impl",
         "camera.device@3.2-impl",
         "camera.device@3.3-impl",
         "camera.device@3.4-impl",
-        "camera.device@3.4-external-impl",
-        "android.hardware.camera.provider@2.4",
-        "android.hardware.camera.common@1.0",
-        "android.hardware.graphics.mapper@2.0",
-        "android.hidl.allocator@1.0",
-        "android.hidl.memory@1.0",
-        "liblog",
-        "libhardware",
+        "camera.device@3.5-impl",
         "libcamera_metadata",
-        "libtinyxml2"
-    ],
-    header_libs: [
-        "camera.device@3.4-impl_headers",
-        "camera.device@3.4-external-impl_headers"
+        "libcutils",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libutils",
     ],
     static_libs: [
         "android.hardware.camera.common@1.0-helper",
     ],
+    header_libs: [
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-impl_headers",
+    ],
+    export_include_dirs: ["."],
+}
+
+cc_library_shared {
+    name: "android.hardware.camera.provider@2.4-external",
+    proprietary: true,
+    srcs: ["ExternalCameraProviderImpl_2_4.cpp"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "camera.device@3.3-impl",
+        "camera.device@3.4-external-impl",
+        "camera.device@3.4-impl",
+        "camera.device@3.5-external-impl",
+        "camera.device@3.5-impl",
+        "libcamera_metadata",
+        "libcutils",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libtinyxml2",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    header_libs: [
+        "camera.device@3.4-external-impl_headers",
+        "camera.device@3.5-external-impl_headers"
+    ],
+    export_include_dirs: ["."],
+}
+
+cc_library_shared {
+    name: "android.hardware.camera.provider@2.4-impl",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    relative_install_path: "hw",
+    srcs: ["CameraProvider_2_4.cpp"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.provider@2.4-external",
+        "android.hardware.camera.provider@2.4-legacy",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "camera.device@1.0-impl",
+        "camera.device@3.2-impl",
+        "camera.device@3.3-impl",
+        "camera.device@3.4-external-impl",
+        "camera.device@3.4-impl",
+        "camera.device@3.5-external-impl",
+        "camera.device@3.5-impl",
+        "libcamera_metadata",
+        "libcutils",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libtinyxml2",
+        "libutils",
+    ],
+    header_libs: [
+        "camera.device@3.4-external-impl_headers",
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-external-impl_headers",
+        "camera.device@3.5-impl_headers",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    export_include_dirs: ["."],
+}
+
+cc_defaults {
+    name: "camera_service_defaults",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    relative_install_path: "hw",
+    srcs: ["service.cpp"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libbinder",
+        "libcamera_metadata",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    header_libs: [
+        "camera.device@3.4-external-impl_headers",
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-external-impl_headers",
+        "camera.device@3.5-impl_headers",
+    ],
 }
 
 cc_binary {
     name: "android.hardware.camera.provider@2.4-service",
-    defaults: ["hidl_defaults"],
-    proprietary: true,
-    relative_install_path: "hw",
-    srcs: ["service.cpp"],
+    defaults: ["camera_service_defaults"],
     compile_multilib: "32",
     init_rc: ["android.hardware.camera.provider@2.4-service.rc"],
-    shared_libs: [
-        "libhidlbase",
-        "libhidltransport",
-        "libbinder",
-        "liblog",
-        "libutils",
-        "android.hardware.camera.device@1.0",
-        "android.hardware.camera.device@3.2",
-        "android.hardware.camera.device@3.3",
-        "android.hardware.camera.device@3.4",
-        "android.hardware.camera.provider@2.4",
-        "android.hardware.camera.common@1.0",
-    ],
 }
 
-
 cc_binary {
     name: "android.hardware.camera.provider@2.4-service_64",
-    defaults: ["hidl_defaults"],
-    proprietary: true,
-    relative_install_path: "hw",
-    srcs: ["service.cpp"],
+    defaults: ["camera_service_defaults"],
     compile_multilib: "64",
     init_rc: ["android.hardware.camera.provider@2.4-service_64.rc"],
-    shared_libs: [
-        "libhidlbase",
-        "libhidltransport",
-        "libbinder",
-        "liblog",
-        "libutils",
-        "android.hardware.camera.device@1.0",
-        "android.hardware.camera.device@3.2",
-        "android.hardware.camera.device@3.3",
-        "android.hardware.camera.device@3.4",
-        "android.hardware.camera.provider@2.4",
-        "android.hardware.camera.common@1.0",
-    ],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.4-service-lazy",
+    overrides: ["android.hardware.camera.provider@2.4-service"],
+    defaults: ["camera_service_defaults"],
+    compile_multilib: "32",
+    init_rc: ["android.hardware.camera.provider@2.4-service-lazy.rc"],
+    cflags: ["-DLAZY_SERVICE"],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.4-service-lazy_64",
+    overrides: ["android.hardware.camera.provider@2.4-service_64"],
+    defaults: ["camera_service_defaults"],
+    compile_multilib: "64",
+    init_rc: ["android.hardware.camera.provider@2.4-service-lazy_64.rc"],
+    cflags: ["-DLAZY_SERVICE"],
 }
 
 cc_binary {
@@ -94,15 +200,24 @@
     compile_multilib: "32",
     init_rc: ["android.hardware.camera.provider@2.4-external-service.rc"],
     shared_libs: [
-        "libhidlbase",
-        "libhidltransport",
-        "libbinder",
-        "liblog",
-        "libutils",
+        "android.hardware.camera.common@1.0",
         "android.hardware.camera.device@1.0",
         "android.hardware.camera.device@3.2",
         "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
         "android.hardware.camera.provider@2.4",
-        "android.hardware.camera.common@1.0",
+        "libbinder",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libtinyxml2",
+        "libutils",
+    ],
+    header_libs: [
+        "camera.device@3.4-external-impl_headers",
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-external-impl_headers",
+        "camera.device@3.5-impl_headers",
     ],
 }
diff --git a/camera/provider/2.4/default/CameraProvider.cpp b/camera/provider/2.4/default/CameraProvider.cpp
deleted file mode 100644
index 6313939..0000000
--- a/camera/provider/2.4/default/CameraProvider.cpp
+++ /dev/null
@@ -1,635 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "CamProvider@2.4-impl"
-//#define LOG_NDEBUG 0
-#include <android/log.h>
-
-#include "CameraProvider.h"
-#include "ExternalCameraProvider.h"
-#include "CameraDevice_1_0.h"
-#include "CameraDevice_3_3.h"
-#include "CameraDevice_3_4.h"
-#include <cutils/properties.h>
-#include <string.h>
-#include <utils/Trace.h>
-
-
-namespace android {
-namespace hardware {
-namespace camera {
-namespace provider {
-namespace V2_4 {
-namespace implementation {
-
-namespace {
-const char *kLegacyProviderName = "legacy/0";
-const char *kExternalProviderName = "external/0";
-// "device@<version>/legacy/<id>"
-const std::regex kDeviceNameRE("device@([0-9]+\\.[0-9]+)/legacy/(.+)");
-const char *kHAL3_2 = "3.2";
-const char *kHAL3_3 = "3.3";
-const char *kHAL3_4 = "3.4";
-const char *kHAL1_0 = "1.0";
-const int kMaxCameraDeviceNameLen = 128;
-const int kMaxCameraIdLen = 16;
-
-bool matchDeviceName(const hidl_string& deviceName, std::string* deviceVersion,
-                     std::string* cameraId) {
-    std::string deviceNameStd(deviceName.c_str());
-    std::smatch sm;
-    if (std::regex_match(deviceNameStd, sm, kDeviceNameRE)) {
-        if (deviceVersion != nullptr) {
-            *deviceVersion = sm[1];
-        }
-        if (cameraId != nullptr) {
-            *cameraId = sm[2];
-        }
-        return true;
-    }
-    return false;
-}
-
-} // anonymous namespace
-
-using ::android::hardware::camera::common::V1_0::CameraMetadataType;
-using ::android::hardware::camera::common::V1_0::Status;
-
-void CameraProvider::addDeviceNames(int camera_id, CameraDeviceStatus status, bool cam_new)
-{
-    char cameraId[kMaxCameraIdLen];
-    snprintf(cameraId, sizeof(cameraId), "%d", camera_id);
-    std::string cameraIdStr(cameraId);
-
-    mCameraIds.add(cameraIdStr);
-
-    // initialize mCameraDeviceNames and mOpenLegacySupported
-    mOpenLegacySupported[cameraIdStr] = false;
-    int deviceVersion = mModule->getDeviceVersion(camera_id);
-    auto deviceNamePair = std::make_pair(cameraIdStr,
-                                         getHidlDeviceName(cameraIdStr, deviceVersion));
-    mCameraDeviceNames.add(deviceNamePair);
-    if (cam_new) {
-        mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, status);
-    }
-    if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
-            mModule->isOpenLegacyDefined()) {
-        // try open_legacy to see if it actually works
-        struct hw_device_t* halDev = nullptr;
-        int ret = mModule->openLegacy(cameraId, CAMERA_DEVICE_API_VERSION_1_0, &halDev);
-        if (ret == 0) {
-            mOpenLegacySupported[cameraIdStr] = true;
-            halDev->close(halDev);
-            deviceNamePair = std::make_pair(cameraIdStr,
-                            getHidlDeviceName(cameraIdStr, CAMERA_DEVICE_API_VERSION_1_0));
-            mCameraDeviceNames.add(deviceNamePair);
-            if (cam_new) {
-                mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, status);
-            }
-        } else if (ret == -EBUSY || ret == -EUSERS) {
-            // Looks like this provider instance is not initialized during
-            // system startup and there are other camera users already.
-            // Not a good sign but not fatal.
-            ALOGW("%s: open_legacy try failed!", __FUNCTION__);
-        }
-    }
-}
-
-void CameraProvider::removeDeviceNames(int camera_id)
-{
-    std::string cameraIdStr = std::to_string(camera_id);
-
-    mCameraIds.remove(cameraIdStr);
-
-    int deviceVersion = mModule->getDeviceVersion(camera_id);
-    auto deviceNamePair = std::make_pair(cameraIdStr,
-                                         getHidlDeviceName(cameraIdStr, deviceVersion));
-    mCameraDeviceNames.remove(deviceNamePair);
-    mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, CameraDeviceStatus::NOT_PRESENT);
-    if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
-        mModule->isOpenLegacyDefined() && mOpenLegacySupported[cameraIdStr]) {
-
-        deviceNamePair = std::make_pair(cameraIdStr,
-                            getHidlDeviceName(cameraIdStr, CAMERA_DEVICE_API_VERSION_1_0));
-        mCameraDeviceNames.remove(deviceNamePair);
-        mCallbacks->cameraDeviceStatusChange(deviceNamePair.second,
-                                             CameraDeviceStatus::NOT_PRESENT);
-    }
-
-    mModule->removeCamera(camera_id);
-}
-
-/**
- * static callback forwarding methods from HAL to instance
- */
-void CameraProvider::sCameraDeviceStatusChange(
-        const struct camera_module_callbacks* callbacks,
-        int camera_id,
-        int new_status) {
-    CameraProvider* cp = const_cast<CameraProvider*>(
-            static_cast<const CameraProvider*>(callbacks));
-    bool found = false;
-
-    if (cp == nullptr) {
-        ALOGE("%s: callback ops is null", __FUNCTION__);
-        return;
-    }
-
-    Mutex::Autolock _l(cp->mCbLock);
-    char cameraId[kMaxCameraIdLen];
-    snprintf(cameraId, sizeof(cameraId), "%d", camera_id);
-    std::string cameraIdStr(cameraId);
-    cp->mCameraStatusMap[cameraIdStr] = (camera_device_status_t) new_status;
-    if (cp->mCallbacks != nullptr) {
-        CameraDeviceStatus status = (CameraDeviceStatus) new_status;
-        for (auto const& deviceNamePair : cp->mCameraDeviceNames) {
-            if (cameraIdStr.compare(deviceNamePair.first) == 0) {
-                cp->mCallbacks->cameraDeviceStatusChange(
-                        deviceNamePair.second, status);
-                found = true;
-            }
-        }
-
-        switch (status) {
-        case CameraDeviceStatus::PRESENT:
-        case CameraDeviceStatus::ENUMERATING:
-            if (!found) {
-                cp->addDeviceNames(camera_id, status, true);
-            }
-            break;
-        case CameraDeviceStatus::NOT_PRESENT:
-            if (found) {
-                cp->removeDeviceNames(camera_id);
-            }
-        }
-    }
-}
-
-void CameraProvider::sTorchModeStatusChange(
-        const struct camera_module_callbacks* callbacks,
-        const char* camera_id,
-        int new_status) {
-    CameraProvider* cp = const_cast<CameraProvider*>(
-            static_cast<const CameraProvider*>(callbacks));
-
-    if (cp == nullptr) {
-        ALOGE("%s: callback ops is null", __FUNCTION__);
-        return;
-    }
-
-    Mutex::Autolock _l(cp->mCbLock);
-    if (cp->mCallbacks != nullptr) {
-        std::string cameraIdStr(camera_id);
-        TorchModeStatus status = (TorchModeStatus) new_status;
-        for (auto const& deviceNamePair : cp->mCameraDeviceNames) {
-            if (cameraIdStr.compare(deviceNamePair.first) == 0) {
-                cp->mCallbacks->torchModeStatusChange(
-                        deviceNamePair.second, status);
-            }
-        }
-    }
-}
-
-Status CameraProvider::getHidlStatus(int status) {
-    switch (status) {
-        case 0: return Status::OK;
-        case -ENODEV: return Status::INTERNAL_ERROR;
-        case -EINVAL: return Status::ILLEGAL_ARGUMENT;
-        default:
-            ALOGE("%s: unknown HAL status code %d", __FUNCTION__, status);
-            return Status::INTERNAL_ERROR;
-    }
-}
-
-std::string CameraProvider::getLegacyCameraId(const hidl_string& deviceName) {
-    std::string cameraId;
-    matchDeviceName(deviceName, nullptr, &cameraId);
-    return cameraId;
-}
-
-int CameraProvider::getCameraDeviceVersion(const hidl_string& deviceName) {
-    std::string deviceVersion;
-    bool match = matchDeviceName(deviceName, &deviceVersion, nullptr);
-    if (!match) {
-        return -1;
-    }
-    if (deviceVersion == kHAL3_3) {
-        return CAMERA_DEVICE_API_VERSION_3_3;
-    } else if (deviceVersion == kHAL3_2) {
-        return CAMERA_DEVICE_API_VERSION_3_2;
-    } else if (deviceVersion == kHAL1_0) {
-        return CAMERA_DEVICE_API_VERSION_1_0;
-    }
-    return 0;
-}
-
-std::string CameraProvider::getHidlDeviceName(
-        std::string cameraId, int deviceVersion) {
-    // Maybe consider create a version check method and SortedVec to speed up?
-    if (deviceVersion != CAMERA_DEVICE_API_VERSION_1_0 &&
-            deviceVersion != CAMERA_DEVICE_API_VERSION_3_2 &&
-            deviceVersion != CAMERA_DEVICE_API_VERSION_3_3 &&
-            deviceVersion != CAMERA_DEVICE_API_VERSION_3_4 &&
-            deviceVersion != CAMERA_DEVICE_API_VERSION_3_5) {
-        return hidl_string("");
-    }
-    bool isV1 = deviceVersion == CAMERA_DEVICE_API_VERSION_1_0;
-    int versionMajor = isV1 ? 1 : 3;
-    int versionMinor = isV1 ? 0 : mPreferredHal3MinorVersion;
-    if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_5) {
-        versionMinor = 4;
-    }
-    char deviceName[kMaxCameraDeviceNameLen];
-    snprintf(deviceName, sizeof(deviceName), "device@%d.%d/legacy/%s",
-            versionMajor, versionMinor, cameraId.c_str());
-    return deviceName;
-}
-
-CameraProvider::CameraProvider() :
-        camera_module_callbacks_t({sCameraDeviceStatusChange,
-                                   sTorchModeStatusChange}) {
-    mInitFailed = initialize();
-}
-
-CameraProvider::~CameraProvider() {}
-
-bool CameraProvider::initialize() {
-    camera_module_t *rawModule;
-    int err = hw_get_module(CAMERA_HARDWARE_MODULE_ID,
-            (const hw_module_t **)&rawModule);
-    if (err < 0) {
-        ALOGE("Could not load camera HAL module: %d (%s)", err, strerror(-err));
-        return true;
-    }
-
-    mModule = new CameraModule(rawModule);
-    err = mModule->init();
-    if (err != OK) {
-        ALOGE("Could not initialize camera HAL module: %d (%s)", err, strerror(-err));
-        mModule.clear();
-        return true;
-    }
-    ALOGI("Loaded \"%s\" camera module", mModule->getModuleName());
-
-    // Setup vendor tags here so HAL can setup vendor keys in camera characteristics
-    VendorTagDescriptor::clearGlobalVendorTagDescriptor();
-    if (!setUpVendorTags()) {
-        ALOGE("%s: Vendor tag setup failed, will not be available.", __FUNCTION__);
-    }
-
-    // Setup callback now because we are going to try openLegacy next
-    err = mModule->setCallbacks(this);
-    if (err != OK) {
-        ALOGE("Could not set camera module callback: %d (%s)", err, strerror(-err));
-        mModule.clear();
-        return true;
-    }
-
-    mPreferredHal3MinorVersion =
-        property_get_int32("ro.vendor.camera.wrapper.hal3TrebleMinorVersion", 3);
-    ALOGV("Preferred HAL 3 minor version is %d", mPreferredHal3MinorVersion);
-    switch(mPreferredHal3MinorVersion) {
-        case 2:
-        case 3:
-            // OK
-            break;
-        default:
-            ALOGW("Unknown minor camera device HAL version %d in property "
-                    "'camera.wrapper.hal3TrebleMinorVersion', defaulting to 3",
-                    mPreferredHal3MinorVersion);
-            mPreferredHal3MinorVersion = 3;
-    }
-
-    mNumberOfLegacyCameras = mModule->getNumberOfCameras();
-    for (int i = 0; i < mNumberOfLegacyCameras; i++) {
-        struct camera_info info;
-        auto rc = mModule->getCameraInfo(i, &info);
-        if (rc != NO_ERROR) {
-            ALOGE("%s: Camera info query failed!", __func__);
-            mModule.clear();
-            return true;
-        }
-
-        if (checkCameraVersion(i, info) != OK) {
-            ALOGE("%s: Camera version check failed!", __func__);
-            mModule.clear();
-            return true;
-        }
-
-        char cameraId[kMaxCameraIdLen];
-        snprintf(cameraId, sizeof(cameraId), "%d", i);
-        std::string cameraIdStr(cameraId);
-        mCameraStatusMap[cameraIdStr] = CAMERA_DEVICE_STATUS_PRESENT;
-
-        addDeviceNames(i);
-    }
-
-    return false; // mInitFailed
-}
-
-/**
- * Check that the device HAL version is still in supported.
- */
-int CameraProvider::checkCameraVersion(int id, camera_info info) {
-    if (mModule == nullptr) {
-        return NO_INIT;
-    }
-
-    // device_version undefined in CAMERA_MODULE_API_VERSION_1_0,
-    // All CAMERA_MODULE_API_VERSION_1_0 devices are backward-compatible
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
-        // Verify the device version is in the supported range
-        switch (info.device_version) {
-            case CAMERA_DEVICE_API_VERSION_1_0:
-            case CAMERA_DEVICE_API_VERSION_3_2:
-            case CAMERA_DEVICE_API_VERSION_3_3:
-            case CAMERA_DEVICE_API_VERSION_3_4:
-            case CAMERA_DEVICE_API_VERSION_3_5:
-                // in support
-                break;
-            case CAMERA_DEVICE_API_VERSION_2_0:
-            case CAMERA_DEVICE_API_VERSION_2_1:
-            case CAMERA_DEVICE_API_VERSION_3_0:
-            case CAMERA_DEVICE_API_VERSION_3_1:
-                // no longer supported
-            default:
-                ALOGE("%s: Device %d has HAL version %x, which is not supported",
-                        __FUNCTION__, id, info.device_version);
-                return NO_INIT;
-        }
-    }
-
-    return OK;
-}
-
-bool CameraProvider::setUpVendorTags() {
-    ATRACE_CALL();
-    vendor_tag_ops_t vOps = vendor_tag_ops_t();
-
-    // Check if vendor operations have been implemented
-    if (!mModule->isVendorTagDefined()) {
-        ALOGI("%s: No vendor tags defined for this device.", __FUNCTION__);
-        return true;
-    }
-
-    mModule->getVendorTagOps(&vOps);
-
-    // Ensure all vendor operations are present
-    if (vOps.get_tag_count == nullptr || vOps.get_all_tags == nullptr ||
-            vOps.get_section_name == nullptr || vOps.get_tag_name == nullptr ||
-            vOps.get_tag_type == nullptr) {
-        ALOGE("%s: Vendor tag operations not fully defined. Ignoring definitions."
-               , __FUNCTION__);
-        return false;
-    }
-
-    // Read all vendor tag definitions into a descriptor
-    sp<VendorTagDescriptor> desc;
-    status_t res;
-    if ((res = VendorTagDescriptor::createDescriptorFromOps(&vOps, /*out*/desc))
-            != OK) {
-        ALOGE("%s: Could not generate descriptor from vendor tag operations,"
-              "received error %s (%d). Camera clients will not be able to use"
-              "vendor tags", __FUNCTION__, strerror(res), res);
-        return false;
-    }
-
-    // Set the global descriptor to use with camera metadata
-    VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
-    const SortedVector<String8>* sectionNames = desc->getAllSectionNames();
-    size_t numSections = sectionNames->size();
-    std::vector<std::vector<VendorTag>> tagsBySection(numSections);
-    int tagCount = desc->getTagCount();
-    std::vector<uint32_t> tags(tagCount);
-    desc->getTagArray(tags.data());
-    for (int i = 0; i < tagCount; i++) {
-        VendorTag vt;
-        vt.tagId = tags[i];
-        vt.tagName = desc->getTagName(tags[i]);
-        vt.tagType = (CameraMetadataType) desc->getTagType(tags[i]);
-        ssize_t sectionIdx = desc->getSectionIndex(tags[i]);
-        tagsBySection[sectionIdx].push_back(vt);
-    }
-    mVendorTagSections.resize(numSections);
-    for (size_t s = 0; s < numSections; s++) {
-        mVendorTagSections[s].sectionName = (*sectionNames)[s].string();
-        mVendorTagSections[s].tags = tagsBySection[s];
-    }
-    return true;
-}
-
-// Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
-Return<Status> CameraProvider::setCallback(const sp<ICameraProviderCallback>& callback)  {
-    Mutex::Autolock _l(mCbLock);
-    mCallbacks = callback;
-    return Status::OK;
-}
-
-Return<void> CameraProvider::getVendorTags(getVendorTags_cb _hidl_cb)  {
-    _hidl_cb(Status::OK, mVendorTagSections);
-    return Void();
-}
-
-Return<void> CameraProvider::getCameraIdList(getCameraIdList_cb _hidl_cb)  {
-    std::vector<hidl_string> deviceNameList;
-    for (auto const& deviceNamePair : mCameraDeviceNames) {
-        if (mCameraStatusMap[deviceNamePair.first] == CAMERA_DEVICE_STATUS_PRESENT) {
-            deviceNameList.push_back(deviceNamePair.second);
-        }
-    }
-    hidl_vec<hidl_string> hidlDeviceNameList(deviceNameList);
-    _hidl_cb(Status::OK, hidlDeviceNameList);
-    return Void();
-}
-
-Return<void> CameraProvider::isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) {
-    bool support = mModule->isSetTorchModeSupported();
-    _hidl_cb (Status::OK, support);
-    return Void();
-}
-
-Return<void> CameraProvider::getCameraDeviceInterface_V1_x(
-        const hidl_string& cameraDeviceName, getCameraDeviceInterface_V1_x_cb _hidl_cb)  {
-    std::string cameraId, deviceVersion;
-    bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId);
-    if (!match) {
-        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
-        return Void();
-    }
-
-    std::string deviceName(cameraDeviceName.c_str());
-    ssize_t index = mCameraDeviceNames.indexOf(std::make_pair(cameraId, deviceName));
-    if (index == NAME_NOT_FOUND) { // Either an illegal name or a device version mismatch
-        Status status = Status::OK;
-        ssize_t idx = mCameraIds.indexOf(cameraId);
-        if (idx == NAME_NOT_FOUND) {
-            ALOGE("%s: cannot find camera %s!", __FUNCTION__, cameraId.c_str());
-            status = Status::ILLEGAL_ARGUMENT;
-        } else { // invalid version
-            ALOGE("%s: camera device %s does not support version %s!",
-                    __FUNCTION__, cameraId.c_str(), deviceVersion.c_str());
-            status = Status::OPERATION_NOT_SUPPORTED;
-        }
-        _hidl_cb(status, nullptr);
-        return Void();
-    }
-
-    if (mCameraStatusMap.count(cameraId) == 0 ||
-            mCameraStatusMap[cameraId] != CAMERA_DEVICE_STATUS_PRESENT) {
-        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
-        return Void();
-    }
-
-    sp<android::hardware::camera::device::V1_0::implementation::CameraDevice> device =
-            new android::hardware::camera::device::V1_0::implementation::CameraDevice(
-                    mModule, cameraId, mCameraDeviceNames);
-
-    if (device == nullptr) {
-        ALOGE("%s: cannot allocate camera device for id %s", __FUNCTION__, cameraId.c_str());
-        _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-        return Void();
-    }
-
-    if (device->isInitFailed()) {
-        ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
-        device = nullptr;
-        _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-        return Void();
-    }
-
-    _hidl_cb (Status::OK, device);
-    return Void();
-}
-
-Return<void> CameraProvider::getCameraDeviceInterface_V3_x(
-        const hidl_string& cameraDeviceName, getCameraDeviceInterface_V3_x_cb _hidl_cb)  {
-    std::string cameraId, deviceVersion;
-    bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId);
-    if (!match) {
-        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
-        return Void();
-    }
-
-    std::string deviceName(cameraDeviceName.c_str());
-    ssize_t index = mCameraDeviceNames.indexOf(std::make_pair(cameraId, deviceName));
-    if (index == NAME_NOT_FOUND) { // Either an illegal name or a device version mismatch
-        Status status = Status::OK;
-        ssize_t idx = mCameraIds.indexOf(cameraId);
-        if (idx == NAME_NOT_FOUND) {
-            ALOGE("%s: cannot find camera %s!", __FUNCTION__, cameraId.c_str());
-            status = Status::ILLEGAL_ARGUMENT;
-        } else { // invalid version
-            ALOGE("%s: camera device %s does not support version %s!",
-                    __FUNCTION__, cameraId.c_str(), deviceVersion.c_str());
-            status = Status::OPERATION_NOT_SUPPORTED;
-        }
-        _hidl_cb(status, nullptr);
-        return Void();
-    }
-
-    if (mCameraStatusMap.count(cameraId) == 0 ||
-            mCameraStatusMap[cameraId] != CAMERA_DEVICE_STATUS_PRESENT) {
-        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
-        return Void();
-    }
-
-    sp<android::hardware::camera::device::V3_2::ICameraDevice> device;
-    if (deviceVersion == kHAL3_4) {
-        ALOGV("Constructing v3.4 camera device");
-        sp<android::hardware::camera::device::V3_2::implementation::CameraDevice> deviceImpl =
-            new android::hardware::camera::device::V3_4::implementation::CameraDevice(
-                    mModule, cameraId, mCameraDeviceNames);
-        if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
-            ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
-            device = nullptr;
-            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-            return Void();
-        }
-
-        device = deviceImpl;
-        _hidl_cb (Status::OK, device);
-        return Void();
-    }
-
-    // Since some Treble HAL revisions can map to the same legacy HAL version(s), we default
-    // to the newest possible Treble HAL revision, but allow for override if needed via
-    // system property.
-    switch (mPreferredHal3MinorVersion) {
-        case 2: { // Map legacy camera device v3 HAL to Treble camera device HAL v3.2
-            ALOGV("Constructing v3.2 camera device");
-            sp<android::hardware::camera::device::V3_2::implementation::CameraDevice> deviceImpl =
-                    new android::hardware::camera::device::V3_2::implementation::CameraDevice(
-                    mModule, cameraId, mCameraDeviceNames);
-            if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
-                ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
-                device = nullptr;
-                _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-                return Void();
-            }
-            device = deviceImpl;
-            break;
-        }
-        case 3: { // Map legacy camera device v3 HAL to Treble camera device HAL v3.3
-            ALOGV("Constructing v3.3 camera device");
-            sp<android::hardware::camera::device::V3_2::implementation::CameraDevice> deviceImpl =
-                    new android::hardware::camera::device::V3_3::implementation::CameraDevice(
-                    mModule, cameraId, mCameraDeviceNames);
-            if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
-                ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
-                device = nullptr;
-                _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-                return Void();
-            }
-            device = deviceImpl;
-            break;
-        }
-        default:
-            ALOGE("%s: Unknown HAL minor version %d!", __FUNCTION__, mPreferredHal3MinorVersion);
-            device = nullptr;
-            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-            return Void();
-    }
-    _hidl_cb (Status::OK, device);
-    return Void();
-}
-
-ICameraProvider* HIDL_FETCH_ICameraProvider(const char* name) {
-    if (strcmp(name, kLegacyProviderName) == 0) {
-        CameraProvider* provider = new CameraProvider();
-        if (provider == nullptr) {
-            ALOGE("%s: cannot allocate camera provider!", __FUNCTION__);
-            return nullptr;
-        }
-        if (provider->isInitFailed()) {
-            ALOGE("%s: camera provider init failed!", __FUNCTION__);
-            delete provider;
-            return nullptr;
-        }
-        return provider;
-    } else if (strcmp(name, kExternalProviderName) == 0) {
-        ExternalCameraProvider* provider = new ExternalCameraProvider();
-        return provider;
-    }
-    ALOGE("%s: unknown instance name: %s", __FUNCTION__, name);
-    return nullptr;
-}
-
-} // namespace implementation
-}  // namespace V2_4
-}  // namespace provider
-}  // namespace camera
-}  // namespace hardware
-}  // namespace android
diff --git a/camera/provider/2.4/default/CameraProvider.h b/camera/provider/2.4/default/CameraProvider.h
deleted file mode 100644
index 0f0959f..0000000
--- a/camera/provider/2.4/default/CameraProvider.h
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
-#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
-
-#include <regex>
-#include "hardware/camera_common.h"
-#include "utils/Mutex.h"
-#include "utils/SortedVector.h"
-#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
-#include <hidl/Status.h>
-#include <hidl/MQDescriptor.h>
-#include "CameraModule.h"
-#include "VendorTagDescriptor.h"
-
-namespace android {
-namespace hardware {
-namespace camera {
-namespace provider {
-namespace V2_4 {
-namespace implementation {
-
-using ::android::hardware::camera::common::V1_0::CameraDeviceStatus;
-using ::android::hardware::camera::common::V1_0::Status;
-using ::android::hardware::camera::common::V1_0::TorchModeStatus;
-using ::android::hardware::camera::common::V1_0::VendorTag;
-using ::android::hardware::camera::common::V1_0::VendorTagSection;
-using ::android::hardware::camera::common::V1_0::helper::CameraModule;
-using ::android::hardware::camera::common::V1_0::helper::VendorTagDescriptor;
-using ::android::hardware::camera::provider::V2_4::ICameraProvider;
-using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-using ::android::Mutex;
-
-struct CameraProvider : public ICameraProvider, public camera_module_callbacks_t {
-    CameraProvider();
-    ~CameraProvider();
-
-    // Caller must use this method to check if CameraProvider ctor failed
-    bool isInitFailed() { return mInitFailed; }
-
-    // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
-    Return<Status> setCallback(const sp<ICameraProviderCallback>& callback) override;
-    Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override;
-    Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override;
-    Return<void> isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) override;
-    Return<void> getCameraDeviceInterface_V1_x(
-            const hidl_string& cameraDeviceName,
-            getCameraDeviceInterface_V1_x_cb _hidl_cb) override;
-    Return<void> getCameraDeviceInterface_V3_x(
-            const hidl_string& cameraDeviceName,
-            getCameraDeviceInterface_V3_x_cb _hidl_cb) override;
-
-private:
-    Mutex mCbLock;
-    sp<ICameraProviderCallback> mCallbacks = nullptr;
-
-    sp<CameraModule> mModule;
-
-    int mNumberOfLegacyCameras;
-    std::map<std::string, camera_device_status_t> mCameraStatusMap; // camera id -> status
-    std::map<std::string, bool> mOpenLegacySupported; // camera id -> open_legacy HAL1.0 supported
-    SortedVector<std::string> mCameraIds; // the "0"/"1" legacy camera Ids
-    // (cameraId string, hidl device name) pairs
-    SortedVector<std::pair<std::string, std::string>> mCameraDeviceNames;
-
-    int mPreferredHal3MinorVersion;
-
-    // Must be queried before using any APIs.
-    // APIs will only work when this returns true
-    bool mInitFailed;
-    bool initialize();
-
-    hidl_vec<VendorTagSection> mVendorTagSections;
-    bool setUpVendorTags();
-    int checkCameraVersion(int id, camera_info info);
-
-    // create HIDL device name from camera ID and legacy device version
-    std::string getHidlDeviceName(std::string cameraId, int deviceVersion);
-
-    // extract legacy camera ID/device version from a HIDL device name
-    static std::string getLegacyCameraId(const hidl_string& deviceName);
-    static int getCameraDeviceVersion(const hidl_string& deviceName);
-
-    // convert conventional HAL status to HIDL Status
-    static Status getHidlStatus(int);
-
-    // static callback forwarding methods
-    static void sCameraDeviceStatusChange(
-        const struct camera_module_callbacks* callbacks,
-        int camera_id,
-        int new_status);
-    static void sTorchModeStatusChange(
-        const struct camera_module_callbacks* callbacks,
-        const char* camera_id,
-        int new_status);
-
-    void addDeviceNames(int camera_id, CameraDeviceStatus status = CameraDeviceStatus::PRESENT,
-                        bool cam_new = false);
-    void removeDeviceNames(int camera_id);
-};
-
-extern "C" ICameraProvider* HIDL_FETCH_ICameraProvider(const char* name);
-
-}  // namespace implementation
-}  // namespace V2_4
-}  // namespace provider
-}  // namespace camera
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
diff --git a/camera/provider/2.4/default/CameraProvider_2_4.cpp b/camera/provider/2.4/default/CameraProvider_2_4.cpp
new file mode 100644
index 0000000..15fc702
--- /dev/null
+++ b/camera/provider/2.4/default/CameraProvider_2_4.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "CameraProvider_2_4.h"
+#include "LegacyCameraProviderImpl_2_4.h"
+#include "ExternalCameraProviderImpl_2_4.h"
+
+const char *kLegacyProviderName = "legacy/0";
+const char *kExternalProviderName = "external/0";
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_4 {
+namespace implementation {
+
+using android::hardware::camera::provider::V2_4::ICameraProvider;
+
+extern "C" ICameraProvider* HIDL_FETCH_ICameraProvider(const char* name);
+
+template<typename IMPL>
+CameraProvider<IMPL>* getProviderImpl() {
+    CameraProvider<IMPL> *provider = new CameraProvider<IMPL>();
+    if (provider == nullptr) {
+        ALOGE("%s: cannot allocate camera provider!", __FUNCTION__);
+        return nullptr;
+    }
+    if (provider->isInitFailed()) {
+        ALOGE("%s: camera provider init failed!", __FUNCTION__);
+        delete provider;
+        return nullptr;
+    }
+    return provider;
+}
+
+ICameraProvider* HIDL_FETCH_ICameraProvider(const char* name) {
+    using namespace android::hardware::camera::provider::V2_4::implementation;
+    ICameraProvider* provider = nullptr;
+    if (strcmp(name, kLegacyProviderName) == 0) {
+        provider = getProviderImpl<LegacyCameraProviderImpl_2_4>();
+    } else if (strcmp(name, kExternalProviderName) == 0) {
+        provider = getProviderImpl<ExternalCameraProviderImpl_2_4>();
+    } else {
+        ALOGE("%s: unknown instance name: %s", __FUNCTION__, name);
+    }
+
+    return provider;
+}
+
+}  // namespace implementation
+}  // namespace V2_4
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/provider/2.4/default/CameraProvider_2_4.h b/camera/provider/2.4/default/CameraProvider_2_4.h
new file mode 100644
index 0000000..d2e5b94
--- /dev/null
+++ b/camera/provider/2.4/default/CameraProvider_2_4.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
+
+#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_4 {
+namespace implementation {
+
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::provider::V2_4::ICameraProvider;
+using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
+using ::android::hardware::Return;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+
+template<typename IMPL>
+struct CameraProvider : public ICameraProvider {
+    CameraProvider() : impl() {}
+    ~CameraProvider() {}
+
+    // Caller must use this method to check if CameraProvider ctor failed
+    bool isInitFailed() { return impl.isInitFailed(); }
+
+    // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
+    Return<Status> setCallback(const sp<ICameraProviderCallback>& callback) override {
+        return impl.setCallback(callback);
+    }
+
+    Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override {
+        return impl.getVendorTags(_hidl_cb);
+    }
+
+    Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override {
+        return impl.getCameraIdList(_hidl_cb);
+    }
+
+    Return<void> isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) override {
+        return impl.isSetTorchModeSupported(_hidl_cb);
+    }
+
+    Return<void> getCameraDeviceInterface_V1_x(
+            const hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V1_x_cb _hidl_cb) override {
+        return impl.getCameraDeviceInterface_V1_x(cameraDeviceName, _hidl_cb);
+    }
+
+    Return<void> getCameraDeviceInterface_V3_x(
+            const hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V3_x_cb _hidl_cb) override {
+        return impl.getCameraDeviceInterface_V3_x(cameraDeviceName, _hidl_cb);
+    }
+
+private:
+    IMPL impl;
+};
+
+}  // namespace implementation
+}  // namespace V2_4
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
diff --git a/camera/provider/2.4/default/ExternalCameraProvider.cpp b/camera/provider/2.4/default/ExternalCameraProvider.cpp
deleted file mode 100644
index 1cec0e5..0000000
--- a/camera/provider/2.4/default/ExternalCameraProvider.cpp
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "CamPvdr@2.4-external"
-//#define LOG_NDEBUG 0
-#include <log/log.h>
-
-#include <regex>
-#include <sys/inotify.h>
-#include <errno.h>
-#include <linux/videodev2.h>
-#include "ExternalCameraProvider.h"
-#include "ExternalCameraDevice_3_4.h"
-
-namespace android {
-namespace hardware {
-namespace camera {
-namespace provider {
-namespace V2_4 {
-namespace implementation {
-
-namespace {
-// "device@<version>/external/<id>"
-const std::regex kDeviceNameRE("device@([0-9]+\\.[0-9]+)/external/(.+)");
-const int kMaxDevicePathLen = 256;
-const char* kDevicePath = "/dev/";
-constexpr char kPrefix[] = "video";
-constexpr int kPrefixLen = sizeof(kPrefix) - 1;
-
-bool matchDeviceName(const hidl_string& deviceName, std::string* deviceVersion,
-                     std::string* cameraId) {
-    std::string deviceNameStd(deviceName.c_str());
-    std::smatch sm;
-    if (std::regex_match(deviceNameStd, sm, kDeviceNameRE)) {
-        if (deviceVersion != nullptr) {
-            *deviceVersion = sm[1];
-        }
-        if (cameraId != nullptr) {
-            *cameraId = sm[2];
-        }
-        return true;
-    }
-    return false;
-}
-
-} // anonymous namespace
-
-ExternalCameraProvider::ExternalCameraProvider() :
-        mCfg(ExternalCameraConfig::loadFromCfg()),
-        mHotPlugThread(this) {
-    mHotPlugThread.run("ExtCamHotPlug", PRIORITY_BACKGROUND);
-}
-
-ExternalCameraProvider::~ExternalCameraProvider() {
-    mHotPlugThread.requestExit();
-}
-
-
-Return<Status> ExternalCameraProvider::setCallback(
-        const sp<ICameraProviderCallback>& callback) {
-    {
-        Mutex::Autolock _l(mLock);
-        mCallbacks = callback;
-    }
-    if (mCallbacks == nullptr) {
-        return Status::OK;
-    }
-    // Send a callback for all devices to initialize
-    {
-        for (const auto& pair : mCameraStatusMap) {
-            mCallbacks->cameraDeviceStatusChange(pair.first, pair.second);
-        }
-    }
-
-    return Status::OK;
-}
-
-Return<void> ExternalCameraProvider::getVendorTags(getVendorTags_cb _hidl_cb) {
-    // No vendor tag support for USB camera
-    hidl_vec<VendorTagSection> zeroSections;
-    _hidl_cb(Status::OK, zeroSections);
-    return Void();
-}
-
-Return<void> ExternalCameraProvider::getCameraIdList(getCameraIdList_cb _hidl_cb) {
-    // External camera HAL always report 0 camera, and extra cameras
-    // are just reported via cameraDeviceStatusChange callbacks
-    hidl_vec<hidl_string> hidlDeviceNameList;
-    _hidl_cb(Status::OK, hidlDeviceNameList);
-    return Void();
-}
-
-Return<void> ExternalCameraProvider::isSetTorchModeSupported(
-        isSetTorchModeSupported_cb _hidl_cb) {
-    // setTorchMode API is supported, though right now no external camera device
-    // has a flash unit.
-    _hidl_cb (Status::OK, true);
-    return Void();
-}
-
-Return<void> ExternalCameraProvider::getCameraDeviceInterface_V1_x(
-        const hidl_string&,
-        getCameraDeviceInterface_V1_x_cb _hidl_cb) {
-    // External Camera HAL does not support HAL1
-    _hidl_cb(Status::OPERATION_NOT_SUPPORTED, nullptr);
-    return Void();
-}
-
-Return<void> ExternalCameraProvider::getCameraDeviceInterface_V3_x(
-        const hidl_string& cameraDeviceName,
-        getCameraDeviceInterface_V3_x_cb _hidl_cb) {
-
-    std::string cameraId, deviceVersion;
-    bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId);
-    if (!match) {
-        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
-        return Void();
-    }
-
-    if (mCameraStatusMap.count(cameraDeviceName) == 0 ||
-            mCameraStatusMap[cameraDeviceName] != CameraDeviceStatus::PRESENT) {
-        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
-        return Void();
-    }
-
-    ALOGV("Constructing v3.4 external camera device");
-    sp<device::V3_2::ICameraDevice> device;
-    sp<device::V3_4::implementation::ExternalCameraDevice> deviceImpl =
-            new device::V3_4::implementation::ExternalCameraDevice(
-                    cameraId, mCfg);
-    if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
-        ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
-        device = nullptr;
-        _hidl_cb(Status::INTERNAL_ERROR, nullptr);
-        return Void();
-    }
-    device = deviceImpl;
-
-    _hidl_cb (Status::OK, device);
-
-    return Void();
-}
-
-void ExternalCameraProvider::addExternalCamera(const char* devName) {
-    ALOGI("ExtCam: adding %s to External Camera HAL!", devName);
-    Mutex::Autolock _l(mLock);
-    std::string deviceName = std::string("device@3.4/external/") + devName;
-    mCameraStatusMap[deviceName] = CameraDeviceStatus::PRESENT;
-    if (mCallbacks != nullptr) {
-        mCallbacks->cameraDeviceStatusChange(deviceName, CameraDeviceStatus::PRESENT);
-    }
-}
-
-void ExternalCameraProvider::deviceAdded(const char* devName) {
-    {
-        base::unique_fd fd(::open(devName, O_RDWR));
-        if (fd.get() < 0) {
-            ALOGE("%s open v4l2 device %s failed:%s", __FUNCTION__, devName, strerror(errno));
-            return;
-        }
-
-        struct v4l2_capability capability;
-        int ret = ioctl(fd.get(), VIDIOC_QUERYCAP, &capability);
-        if (ret < 0) {
-            ALOGE("%s v4l2 QUERYCAP %s failed", __FUNCTION__, devName);
-            return;
-        }
-
-        if (!(capability.device_caps & V4L2_CAP_VIDEO_CAPTURE)) {
-            ALOGW("%s device %s does not support VIDEO_CAPTURE", __FUNCTION__, devName);
-            return;
-        }
-    }
-    // See if we can initialize ExternalCameraDevice correctly
-    sp<device::V3_4::implementation::ExternalCameraDevice> deviceImpl =
-            new device::V3_4::implementation::ExternalCameraDevice(devName, mCfg);
-    if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
-        ALOGW("%s: Attempt to init camera device %s failed!", __FUNCTION__, devName);
-        return;
-    }
-    deviceImpl.clear();
-
-    addExternalCamera(devName);
-    return;
-}
-
-void ExternalCameraProvider::deviceRemoved(const char* devName) {
-    Mutex::Autolock _l(mLock);
-    std::string deviceName = std::string("device@3.4/external/") + devName;
-    if (mCameraStatusMap.find(deviceName) != mCameraStatusMap.end()) {
-        mCameraStatusMap.erase(deviceName);
-        if (mCallbacks != nullptr) {
-            mCallbacks->cameraDeviceStatusChange(deviceName, CameraDeviceStatus::NOT_PRESENT);
-        }
-    } else {
-        ALOGE("%s: cannot find camera device %s", __FUNCTION__, devName);
-    }
-}
-
-ExternalCameraProvider::HotplugThread::HotplugThread(ExternalCameraProvider* parent) :
-        Thread(/*canCallJava*/false),
-        mParent(parent),
-        mInternalDevices(parent->mCfg.mInternalDevices) {}
-
-ExternalCameraProvider::HotplugThread::~HotplugThread() {}
-
-bool ExternalCameraProvider::HotplugThread::threadLoop() {
-    // Find existing /dev/video* devices
-    DIR* devdir = opendir(kDevicePath);
-    if(devdir == 0) {
-        ALOGE("%s: cannot open %s! Exiting threadloop", __FUNCTION__, kDevicePath);
-        return false;
-    }
-
-    struct dirent* de;
-    while ((de = readdir(devdir)) != 0) {
-        // Find external v4l devices that's existing before we start watching and add them
-        if (!strncmp(kPrefix, de->d_name, kPrefixLen)) {
-            // TODO: This might reject some valid devices. Ex: internal is 33 and a device named 3
-            //       is added.
-            std::string deviceId(de->d_name + kPrefixLen);
-            if (mInternalDevices.count(deviceId) == 0) {
-                ALOGV("Non-internal v4l device %s found", de->d_name);
-                char v4l2DevicePath[kMaxDevicePathLen];
-                snprintf(v4l2DevicePath, kMaxDevicePathLen,
-                        "%s%s", kDevicePath, de->d_name);
-                mParent->deviceAdded(v4l2DevicePath);
-            }
-        }
-    }
-    closedir(devdir);
-
-    // Watch new video devices
-    mINotifyFD = inotify_init();
-    if (mINotifyFD < 0) {
-        ALOGE("%s: inotify init failed! Exiting threadloop", __FUNCTION__);
-        return true;
-    }
-
-    mWd = inotify_add_watch(mINotifyFD, kDevicePath, IN_CREATE | IN_DELETE);
-    if (mWd < 0) {
-        ALOGE("%s: inotify add watch failed! Exiting threadloop", __FUNCTION__);
-        return true;
-    }
-
-    ALOGI("%s start monitoring new V4L2 devices", __FUNCTION__);
-
-    bool done = false;
-    char eventBuf[512];
-    while (!done) {
-        int offset = 0;
-        int ret = read(mINotifyFD, eventBuf, sizeof(eventBuf));
-        if (ret >= (int)sizeof(struct inotify_event)) {
-            while (offset < ret) {
-                struct inotify_event* event = (struct inotify_event*)&eventBuf[offset];
-                if (event->wd == mWd) {
-                    if (!strncmp(kPrefix, event->name, kPrefixLen)) {
-                        std::string deviceId(event->name + kPrefixLen);
-                        if (mInternalDevices.count(deviceId) == 0) {
-                            char v4l2DevicePath[kMaxDevicePathLen];
-                            snprintf(v4l2DevicePath, kMaxDevicePathLen,
-                                    "%s%s", kDevicePath, event->name);
-                            if (event->mask & IN_CREATE) {
-                                mParent->deviceAdded(v4l2DevicePath);
-                            }
-                            if (event->mask & IN_DELETE) {
-                                mParent->deviceRemoved(v4l2DevicePath);
-                            }
-                        }
-                    }
-                }
-                offset += sizeof(struct inotify_event) + event->len;
-            }
-        }
-    }
-
-    return true;
-}
-
-}  // namespace implementation
-}  // namespace V2_4
-}  // namespace provider
-}  // namespace camera
-}  // namespace hardware
-}  // namespace android
diff --git a/camera/provider/2.4/default/ExternalCameraProvider.h b/camera/provider/2.4/default/ExternalCameraProvider.h
deleted file mode 100644
index c83cc70..0000000
--- a/camera/provider/2.4/default/ExternalCameraProvider.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H
-#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H
-
-#include <string>
-#include <unordered_map>
-#include <unordered_set>
-#include "utils/Mutex.h"
-#include "utils/Thread.h"
-#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
-#include <hidl/Status.h>
-#include <hidl/MQDescriptor.h>
-#include "ExternalCameraUtils.h"
-
-namespace android {
-namespace hardware {
-namespace camera {
-namespace provider {
-namespace V2_4 {
-namespace implementation {
-
-using ::android::hardware::camera::common::V1_0::CameraDeviceStatus;
-using ::android::hardware::camera::common::V1_0::Status;
-using ::android::hardware::camera::common::V1_0::VendorTagSection;
-using ::android::hardware::camera::external::common::ExternalCameraConfig;
-using ::android::hardware::camera::provider::V2_4::ICameraProvider;
-using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::hidl_string;
-using ::android::sp;
-using ::android::Mutex;
-
-struct ExternalCameraProvider : public ICameraProvider {
-    ExternalCameraProvider();
-    ~ExternalCameraProvider();
-
-    // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
-    Return<Status> setCallback(const sp<ICameraProviderCallback>& callback) override;
-
-    Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override;
-
-    Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override;
-
-    Return<void> isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) override;
-
-    Return<void> getCameraDeviceInterface_V1_x(
-            const hidl_string&,
-            getCameraDeviceInterface_V1_x_cb) override;
-    Return<void> getCameraDeviceInterface_V3_x(
-            const hidl_string&,
-            getCameraDeviceInterface_V3_x_cb) override;
-
-private:
-
-    void addExternalCamera(const char* devName);
-
-    void deviceAdded(const char* devName);
-
-    void deviceRemoved(const char* devName);
-
-    class HotplugThread : public android::Thread {
-    public:
-        HotplugThread(ExternalCameraProvider* parent);
-        ~HotplugThread();
-
-        virtual bool threadLoop() override;
-
-    private:
-        ExternalCameraProvider* mParent = nullptr;
-        const std::unordered_set<std::string> mInternalDevices;
-
-        int mINotifyFD = -1;
-        int mWd = -1;
-    };
-
-    Mutex mLock;
-    sp<ICameraProviderCallback> mCallbacks = nullptr;
-    std::unordered_map<std::string, CameraDeviceStatus> mCameraStatusMap; // camera id -> status
-    const ExternalCameraConfig mCfg;
-    HotplugThread mHotPlugThread;
-};
-
-
-
-}  // namespace implementation
-}  // namespace V2_4
-}  // namespace provider
-}  // namespace camera
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H
diff --git a/camera/provider/2.4/default/ExternalCameraProviderImpl_2_4.cpp b/camera/provider/2.4/default/ExternalCameraProviderImpl_2_4.cpp
new file mode 100644
index 0000000..a6fd288
--- /dev/null
+++ b/camera/provider/2.4/default/ExternalCameraProviderImpl_2_4.cpp
@@ -0,0 +1,353 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CamPrvdr@2.4-external"
+//#define LOG_NDEBUG 0
+#include <log/log.h>
+
+#include <regex>
+#include <sys/inotify.h>
+#include <errno.h>
+#include <linux/videodev2.h>
+#include <cutils/properties.h>
+#include "ExternalCameraProviderImpl_2_4.h"
+#include "ExternalCameraDevice_3_4.h"
+#include "ExternalCameraDevice_3_5.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_4 {
+namespace implementation {
+
+template struct CameraProvider<ExternalCameraProviderImpl_2_4>;
+
+namespace {
+// "device@<version>/external/<id>"
+const std::regex kDeviceNameRE("device@([0-9]+\\.[0-9]+)/external/(.+)");
+const int kMaxDevicePathLen = 256;
+const char* kDevicePath = "/dev/";
+constexpr char kPrefix[] = "video";
+constexpr int kPrefixLen = sizeof(kPrefix) - 1;
+
+bool matchDeviceName(const hidl_string& deviceName, std::string* deviceVersion,
+                     std::string* cameraId) {
+    std::string deviceNameStd(deviceName.c_str());
+    std::smatch sm;
+    if (std::regex_match(deviceNameStd, sm, kDeviceNameRE)) {
+        if (deviceVersion != nullptr) {
+            *deviceVersion = sm[1];
+        }
+        if (cameraId != nullptr) {
+            *cameraId = sm[2];
+        }
+        return true;
+    }
+    return false;
+}
+
+} // anonymous namespace
+
+ExternalCameraProviderImpl_2_4::ExternalCameraProviderImpl_2_4() :
+        mCfg(ExternalCameraConfig::loadFromCfg()),
+        mHotPlugThread(this) {
+    mHotPlugThread.run("ExtCamHotPlug", PRIORITY_BACKGROUND);
+
+    mPreferredHal3MinorVersion =
+        property_get_int32("ro.vendor.camera.external.hal3TrebleMinorVersion", 4);
+    ALOGV("Preferred HAL 3 minor version is %d", mPreferredHal3MinorVersion);
+    switch(mPreferredHal3MinorVersion) {
+        case 4:
+        case 5:
+            // OK
+            break;
+        default:
+            ALOGW("Unknown minor camera device HAL version %d in property "
+                    "'camera.external.hal3TrebleMinorVersion', defaulting to 4",
+                    mPreferredHal3MinorVersion);
+            mPreferredHal3MinorVersion = 4;
+    }
+}
+
+ExternalCameraProviderImpl_2_4::~ExternalCameraProviderImpl_2_4() {
+    mHotPlugThread.requestExit();
+}
+
+
+Return<Status> ExternalCameraProviderImpl_2_4::setCallback(
+        const sp<ICameraProviderCallback>& callback) {
+    {
+        Mutex::Autolock _l(mLock);
+        mCallbacks = callback;
+    }
+    if (mCallbacks == nullptr) {
+        return Status::OK;
+    }
+    // Send a callback for all devices to initialize
+    {
+        for (const auto& pair : mCameraStatusMap) {
+            mCallbacks->cameraDeviceStatusChange(pair.first, pair.second);
+        }
+    }
+
+    return Status::OK;
+}
+
+Return<void> ExternalCameraProviderImpl_2_4::getVendorTags(
+        ICameraProvider::getVendorTags_cb _hidl_cb) {
+    // No vendor tag support for USB camera
+    hidl_vec<VendorTagSection> zeroSections;
+    _hidl_cb(Status::OK, zeroSections);
+    return Void();
+}
+
+Return<void> ExternalCameraProviderImpl_2_4::getCameraIdList(
+        ICameraProvider::getCameraIdList_cb _hidl_cb) {
+    // External camera HAL always report 0 camera, and extra cameras
+    // are just reported via cameraDeviceStatusChange callbacks
+    hidl_vec<hidl_string> hidlDeviceNameList;
+    _hidl_cb(Status::OK, hidlDeviceNameList);
+    return Void();
+}
+
+Return<void> ExternalCameraProviderImpl_2_4::isSetTorchModeSupported(
+        ICameraProvider::isSetTorchModeSupported_cb _hidl_cb) {
+    // setTorchMode API is supported, though right now no external camera device
+    // has a flash unit.
+    _hidl_cb (Status::OK, true);
+    return Void();
+}
+
+Return<void> ExternalCameraProviderImpl_2_4::getCameraDeviceInterface_V1_x(
+        const hidl_string&,
+        ICameraProvider::getCameraDeviceInterface_V1_x_cb _hidl_cb) {
+    // External Camera HAL does not support HAL1
+    _hidl_cb(Status::OPERATION_NOT_SUPPORTED, nullptr);
+    return Void();
+}
+
+Return<void> ExternalCameraProviderImpl_2_4::getCameraDeviceInterface_V3_x(
+        const hidl_string& cameraDeviceName,
+        ICameraProvider::getCameraDeviceInterface_V3_x_cb _hidl_cb) {
+
+    std::string cameraId, deviceVersion;
+    bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId);
+    if (!match) {
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+        return Void();
+    }
+
+    if (mCameraStatusMap.count(cameraDeviceName) == 0 ||
+            mCameraStatusMap[cameraDeviceName] != CameraDeviceStatus::PRESENT) {
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+        return Void();
+    }
+
+    sp<device::V3_4::implementation::ExternalCameraDevice> deviceImpl;
+    switch (mPreferredHal3MinorVersion) {
+        case 4: {
+            ALOGV("Constructing v3.4 external camera device");
+            deviceImpl = new device::V3_4::implementation::ExternalCameraDevice(
+                    cameraId, mCfg);
+            break;
+        }
+        case 5: {
+            ALOGV("Constructing v3.5 external camera device");
+            deviceImpl = new device::V3_5::implementation::ExternalCameraDevice(
+                    cameraId, mCfg);
+            break;
+        }
+        default:
+            ALOGE("%s: Unknown HAL minor version %d!", __FUNCTION__, mPreferredHal3MinorVersion);
+            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+            return Void();
+    }
+
+    if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
+        ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
+        _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+        return Void();
+    }
+
+    IF_ALOGV() {
+        deviceImpl->getInterface()->interfaceChain([](
+            ::android::hardware::hidl_vec<::android::hardware::hidl_string> interfaceChain) {
+                ALOGV("Device interface chain:");
+                for (auto iface : interfaceChain) {
+                    ALOGV("  %s", iface.c_str());
+                }
+            });
+    }
+
+    _hidl_cb (Status::OK, deviceImpl->getInterface());
+
+    return Void();
+}
+
+void ExternalCameraProviderImpl_2_4::addExternalCamera(const char* devName) {
+    ALOGI("ExtCam: adding %s to External Camera HAL!", devName);
+    Mutex::Autolock _l(mLock);
+    std::string deviceName;
+    if (mPreferredHal3MinorVersion == 5) {
+        deviceName = std::string("device@3.5/external/") + devName;
+    } else {
+        deviceName = std::string("device@3.4/external/") + devName;
+    }
+    mCameraStatusMap[deviceName] = CameraDeviceStatus::PRESENT;
+    if (mCallbacks != nullptr) {
+        mCallbacks->cameraDeviceStatusChange(deviceName, CameraDeviceStatus::PRESENT);
+    }
+}
+
+void ExternalCameraProviderImpl_2_4::deviceAdded(const char* devName) {
+    {
+        base::unique_fd fd(::open(devName, O_RDWR));
+        if (fd.get() < 0) {
+            ALOGE("%s open v4l2 device %s failed:%s", __FUNCTION__, devName, strerror(errno));
+            return;
+        }
+
+        struct v4l2_capability capability;
+        int ret = ioctl(fd.get(), VIDIOC_QUERYCAP, &capability);
+        if (ret < 0) {
+            ALOGE("%s v4l2 QUERYCAP %s failed", __FUNCTION__, devName);
+            return;
+        }
+
+        if (!(capability.device_caps & V4L2_CAP_VIDEO_CAPTURE)) {
+            ALOGW("%s device %s does not support VIDEO_CAPTURE", __FUNCTION__, devName);
+            return;
+        }
+    }
+    // See if we can initialize ExternalCameraDevice correctly
+    sp<device::V3_4::implementation::ExternalCameraDevice> deviceImpl =
+            new device::V3_4::implementation::ExternalCameraDevice(devName, mCfg);
+    if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
+        ALOGW("%s: Attempt to init camera device %s failed!", __FUNCTION__, devName);
+        return;
+    }
+    deviceImpl.clear();
+
+    addExternalCamera(devName);
+    return;
+}
+
+void ExternalCameraProviderImpl_2_4::deviceRemoved(const char* devName) {
+    Mutex::Autolock _l(mLock);
+    std::string deviceName;
+    if (mPreferredHal3MinorVersion == 5) {
+        deviceName = std::string("device@3.5/external/") + devName;
+    } else {
+        deviceName = std::string("device@3.4/external/") + devName;
+    }
+    if (mCameraStatusMap.find(deviceName) != mCameraStatusMap.end()) {
+        mCameraStatusMap.erase(deviceName);
+        if (mCallbacks != nullptr) {
+            mCallbacks->cameraDeviceStatusChange(deviceName, CameraDeviceStatus::NOT_PRESENT);
+        }
+    } else {
+        ALOGE("%s: cannot find camera device %s", __FUNCTION__, devName);
+    }
+}
+
+ExternalCameraProviderImpl_2_4::HotplugThread::HotplugThread(
+        ExternalCameraProviderImpl_2_4* parent) :
+        Thread(/*canCallJava*/false),
+        mParent(parent),
+        mInternalDevices(parent->mCfg.mInternalDevices) {}
+
+ExternalCameraProviderImpl_2_4::HotplugThread::~HotplugThread() {}
+
+bool ExternalCameraProviderImpl_2_4::HotplugThread::threadLoop() {
+    // Find existing /dev/video* devices
+    DIR* devdir = opendir(kDevicePath);
+    if(devdir == 0) {
+        ALOGE("%s: cannot open %s! Exiting threadloop", __FUNCTION__, kDevicePath);
+        return false;
+    }
+
+    struct dirent* de;
+    while ((de = readdir(devdir)) != 0) {
+        // Find external v4l devices that's existing before we start watching and add them
+        if (!strncmp(kPrefix, de->d_name, kPrefixLen)) {
+            // TODO: This might reject some valid devices. Ex: internal is 33 and a device named 3
+            //       is added.
+            std::string deviceId(de->d_name + kPrefixLen);
+            if (mInternalDevices.count(deviceId) == 0) {
+                ALOGV("Non-internal v4l device %s found", de->d_name);
+                char v4l2DevicePath[kMaxDevicePathLen];
+                snprintf(v4l2DevicePath, kMaxDevicePathLen,
+                        "%s%s", kDevicePath, de->d_name);
+                mParent->deviceAdded(v4l2DevicePath);
+            }
+        }
+    }
+    closedir(devdir);
+
+    // Watch new video devices
+    mINotifyFD = inotify_init();
+    if (mINotifyFD < 0) {
+        ALOGE("%s: inotify init failed! Exiting threadloop", __FUNCTION__);
+        return true;
+    }
+
+    mWd = inotify_add_watch(mINotifyFD, kDevicePath, IN_CREATE | IN_DELETE);
+    if (mWd < 0) {
+        ALOGE("%s: inotify add watch failed! Exiting threadloop", __FUNCTION__);
+        return true;
+    }
+
+    ALOGI("%s start monitoring new V4L2 devices", __FUNCTION__);
+
+    bool done = false;
+    char eventBuf[512];
+    while (!done) {
+        int offset = 0;
+        int ret = read(mINotifyFD, eventBuf, sizeof(eventBuf));
+        if (ret >= (int)sizeof(struct inotify_event)) {
+            while (offset < ret) {
+                struct inotify_event* event = (struct inotify_event*)&eventBuf[offset];
+                if (event->wd == mWd) {
+                    if (!strncmp(kPrefix, event->name, kPrefixLen)) {
+                        std::string deviceId(event->name + kPrefixLen);
+                        if (mInternalDevices.count(deviceId) == 0) {
+                            char v4l2DevicePath[kMaxDevicePathLen];
+                            snprintf(v4l2DevicePath, kMaxDevicePathLen,
+                                    "%s%s", kDevicePath, event->name);
+                            if (event->mask & IN_CREATE) {
+                                mParent->deviceAdded(v4l2DevicePath);
+                            }
+                            if (event->mask & IN_DELETE) {
+                                mParent->deviceRemoved(v4l2DevicePath);
+                            }
+                        }
+                    }
+                }
+                offset += sizeof(struct inotify_event) + event->len;
+            }
+        }
+    }
+
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V2_4
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/provider/2.4/default/ExternalCameraProviderImpl_2_4.h b/camera/provider/2.4/default/ExternalCameraProviderImpl_2_4.h
new file mode 100644
index 0000000..8c79f68
--- /dev/null
+++ b/camera/provider/2.4/default/ExternalCameraProviderImpl_2_4.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H
+
+#include <string>
+#include <unordered_map>
+#include <unordered_set>
+#include <utils/Mutex.h>
+#include <utils/Thread.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+#include "ExternalCameraUtils.h"
+
+#include "CameraProvider_2_4.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_4 {
+namespace implementation {
+
+using ::android::hardware::camera::common::V1_0::CameraDeviceStatus;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::VendorTagSection;
+using ::android::hardware::camera::external::common::ExternalCameraConfig;
+using ::android::hardware::camera::provider::V2_4::ICameraProvider;
+using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+using ::android::Mutex;
+
+/**
+ * The implementation of external webcam CameraProvider 2.4, separated
+ * from the HIDL interface layer to allow for implementation reuse by later
+ * provider versions.
+ *
+ * This camera provider supports standard UVC webcameras via the Linux V4L2
+ * UVC driver.
+ */
+struct ExternalCameraProviderImpl_2_4 {
+    ExternalCameraProviderImpl_2_4();
+    ~ExternalCameraProviderImpl_2_4();
+
+    // Caller must use this method to check if CameraProvider ctor failed
+    bool isInitFailed() { return false;}
+
+    // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
+    Return<Status> setCallback(const sp<ICameraProviderCallback>& callback);
+    Return<void> getVendorTags(ICameraProvider::getVendorTags_cb _hidl_cb);
+    Return<void> getCameraIdList(ICameraProvider::getCameraIdList_cb _hidl_cb);
+    Return<void> isSetTorchModeSupported(ICameraProvider::isSetTorchModeSupported_cb _hidl_cb);
+    Return<void> getCameraDeviceInterface_V1_x(
+            const hidl_string&,
+            ICameraProvider::getCameraDeviceInterface_V1_x_cb);
+    Return<void> getCameraDeviceInterface_V3_x(
+            const hidl_string&,
+            ICameraProvider::getCameraDeviceInterface_V3_x_cb);
+
+private:
+
+    void addExternalCamera(const char* devName);
+
+    void deviceAdded(const char* devName);
+
+    void deviceRemoved(const char* devName);
+
+    class HotplugThread : public android::Thread {
+    public:
+        HotplugThread(ExternalCameraProviderImpl_2_4* parent);
+        ~HotplugThread();
+
+        virtual bool threadLoop() override;
+
+    private:
+        ExternalCameraProviderImpl_2_4* mParent = nullptr;
+        const std::unordered_set<std::string> mInternalDevices;
+
+        int mINotifyFD = -1;
+        int mWd = -1;
+    };
+
+    Mutex mLock;
+    sp<ICameraProviderCallback> mCallbacks = nullptr;
+    std::unordered_map<std::string, CameraDeviceStatus> mCameraStatusMap; // camera id -> status
+    const ExternalCameraConfig mCfg;
+    HotplugThread mHotPlugThread;
+    int mPreferredHal3MinorVersion;
+};
+
+
+
+}  // namespace implementation
+}  // namespace V2_4
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H
diff --git a/camera/provider/2.4/default/LegacyCameraProviderImpl_2_4.cpp b/camera/provider/2.4/default/LegacyCameraProviderImpl_2_4.cpp
new file mode 100644
index 0000000..4cff1b7
--- /dev/null
+++ b/camera/provider/2.4/default/LegacyCameraProviderImpl_2_4.cpp
@@ -0,0 +1,656 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CamPrvdr@2.4-legacy"
+//#define LOG_NDEBUG 0
+#include <android/log.h>
+
+#include "LegacyCameraProviderImpl_2_4.h"
+#include "CameraDevice_1_0.h"
+#include "CameraDevice_3_3.h"
+#include "CameraDevice_3_4.h"
+#include "CameraDevice_3_5.h"
+#include "CameraProvider_2_4.h"
+#include <cutils/properties.h>
+#include <regex>
+#include <string.h>
+#include <utils/Trace.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_4 {
+namespace implementation {
+
+template struct CameraProvider<LegacyCameraProviderImpl_2_4>;
+
+namespace {
+// "device@<version>/legacy/<id>"
+const std::regex kDeviceNameRE("device@([0-9]+\\.[0-9]+)/legacy/(.+)");
+const char *kHAL3_4 = "3.4";
+const char *kHAL3_5 = "3.5";
+const int kMaxCameraDeviceNameLen = 128;
+const int kMaxCameraIdLen = 16;
+
+bool matchDeviceName(const hidl_string& deviceName, std::string* deviceVersion,
+                     std::string* cameraId) {
+    std::string deviceNameStd(deviceName.c_str());
+    std::smatch sm;
+    if (std::regex_match(deviceNameStd, sm, kDeviceNameRE)) {
+        if (deviceVersion != nullptr) {
+            *deviceVersion = sm[1];
+        }
+        if (cameraId != nullptr) {
+            *cameraId = sm[2];
+        }
+        return true;
+    }
+    return false;
+}
+
+} // anonymous namespace
+
+using ::android::hardware::camera::common::V1_0::CameraMetadataType;
+using ::android::hardware::camera::common::V1_0::Status;
+
+void LegacyCameraProviderImpl_2_4::addDeviceNames(int camera_id, CameraDeviceStatus status, bool cam_new)
+{
+    char cameraId[kMaxCameraIdLen];
+    snprintf(cameraId, sizeof(cameraId), "%d", camera_id);
+    std::string cameraIdStr(cameraId);
+
+    mCameraIds.add(cameraIdStr);
+
+    // initialize mCameraDeviceNames and mOpenLegacySupported
+    mOpenLegacySupported[cameraIdStr] = false;
+    int deviceVersion = mModule->getDeviceVersion(camera_id);
+    auto deviceNamePair = std::make_pair(cameraIdStr,
+                                         getHidlDeviceName(cameraIdStr, deviceVersion));
+    mCameraDeviceNames.add(deviceNamePair);
+    if (cam_new) {
+        mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, status);
+    }
+    if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
+            mModule->isOpenLegacyDefined()) {
+        // try open_legacy to see if it actually works
+        struct hw_device_t* halDev = nullptr;
+        int ret = mModule->openLegacy(cameraId, CAMERA_DEVICE_API_VERSION_1_0, &halDev);
+        if (ret == 0) {
+            mOpenLegacySupported[cameraIdStr] = true;
+            halDev->close(halDev);
+            deviceNamePair = std::make_pair(cameraIdStr,
+                            getHidlDeviceName(cameraIdStr, CAMERA_DEVICE_API_VERSION_1_0));
+            mCameraDeviceNames.add(deviceNamePair);
+            if (cam_new) {
+                mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, status);
+            }
+        } else if (ret == -EBUSY || ret == -EUSERS) {
+            // Looks like this provider instance is not initialized during
+            // system startup and there are other camera users already.
+            // Not a good sign but not fatal.
+            ALOGW("%s: open_legacy try failed!", __FUNCTION__);
+        }
+    }
+}
+
+void LegacyCameraProviderImpl_2_4::removeDeviceNames(int camera_id)
+{
+    std::string cameraIdStr = std::to_string(camera_id);
+
+    mCameraIds.remove(cameraIdStr);
+
+    int deviceVersion = mModule->getDeviceVersion(camera_id);
+    auto deviceNamePair = std::make_pair(cameraIdStr,
+                                         getHidlDeviceName(cameraIdStr, deviceVersion));
+    mCameraDeviceNames.remove(deviceNamePair);
+    mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, CameraDeviceStatus::NOT_PRESENT);
+    if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
+        mModule->isOpenLegacyDefined() && mOpenLegacySupported[cameraIdStr]) {
+
+        deviceNamePair = std::make_pair(cameraIdStr,
+                            getHidlDeviceName(cameraIdStr, CAMERA_DEVICE_API_VERSION_1_0));
+        mCameraDeviceNames.remove(deviceNamePair);
+        mCallbacks->cameraDeviceStatusChange(deviceNamePair.second,
+                                             CameraDeviceStatus::NOT_PRESENT);
+    }
+
+    mModule->removeCamera(camera_id);
+}
+
+/**
+ * static callback forwarding methods from HAL to instance
+ */
+void LegacyCameraProviderImpl_2_4::sCameraDeviceStatusChange(
+        const struct camera_module_callbacks* callbacks,
+        int camera_id,
+        int new_status) {
+    LegacyCameraProviderImpl_2_4* cp = const_cast<LegacyCameraProviderImpl_2_4*>(
+            static_cast<const LegacyCameraProviderImpl_2_4*>(callbacks));
+    if (cp == nullptr) {
+        ALOGE("%s: callback ops is null", __FUNCTION__);
+        return;
+    }
+
+    Mutex::Autolock _l(cp->mCbLock);
+    char cameraId[kMaxCameraIdLen];
+    snprintf(cameraId, sizeof(cameraId), "%d", camera_id);
+    std::string cameraIdStr(cameraId);
+    cp->mCameraStatusMap[cameraIdStr] = (camera_device_status_t) new_status;
+
+    if (cp->mCallbacks == nullptr) {
+        // For camera connected before mCallbacks is set, the corresponding
+        // addDeviceNames() would be called later in setCallbacks().
+        return;
+    }
+
+    bool found = false;
+    CameraDeviceStatus status = (CameraDeviceStatus)new_status;
+    for (auto const& deviceNamePair : cp->mCameraDeviceNames) {
+        if (cameraIdStr.compare(deviceNamePair.first) == 0) {
+            cp->mCallbacks->cameraDeviceStatusChange(deviceNamePair.second, status);
+            found = true;
+        }
+    }
+
+    switch (status) {
+        case CameraDeviceStatus::PRESENT:
+        case CameraDeviceStatus::ENUMERATING:
+            if (!found) {
+                cp->addDeviceNames(camera_id, status, true);
+            }
+            break;
+        case CameraDeviceStatus::NOT_PRESENT:
+            if (found) {
+                cp->removeDeviceNames(camera_id);
+            }
+    }
+}
+
+void LegacyCameraProviderImpl_2_4::sTorchModeStatusChange(
+        const struct camera_module_callbacks* callbacks,
+        const char* camera_id,
+        int new_status) {
+    LegacyCameraProviderImpl_2_4* cp = const_cast<LegacyCameraProviderImpl_2_4*>(
+            static_cast<const LegacyCameraProviderImpl_2_4*>(callbacks));
+
+    if (cp == nullptr) {
+        ALOGE("%s: callback ops is null", __FUNCTION__);
+        return;
+    }
+
+    Mutex::Autolock _l(cp->mCbLock);
+    if (cp->mCallbacks != nullptr) {
+        std::string cameraIdStr(camera_id);
+        TorchModeStatus status = (TorchModeStatus) new_status;
+        for (auto const& deviceNamePair : cp->mCameraDeviceNames) {
+            if (cameraIdStr.compare(deviceNamePair.first) == 0) {
+                cp->mCallbacks->torchModeStatusChange(
+                        deviceNamePair.second, status);
+            }
+        }
+    }
+}
+
+Status LegacyCameraProviderImpl_2_4::getHidlStatus(int status) {
+    switch (status) {
+        case 0: return Status::OK;
+        case -ENODEV: return Status::INTERNAL_ERROR;
+        case -EINVAL: return Status::ILLEGAL_ARGUMENT;
+        default:
+            ALOGE("%s: unknown HAL status code %d", __FUNCTION__, status);
+            return Status::INTERNAL_ERROR;
+    }
+}
+
+std::string LegacyCameraProviderImpl_2_4::getLegacyCameraId(const hidl_string& deviceName) {
+    std::string cameraId;
+    matchDeviceName(deviceName, nullptr, &cameraId);
+    return cameraId;
+}
+
+std::string LegacyCameraProviderImpl_2_4::getHidlDeviceName(
+        std::string cameraId, int deviceVersion) {
+    // Maybe consider create a version check method and SortedVec to speed up?
+    if (deviceVersion != CAMERA_DEVICE_API_VERSION_1_0 &&
+            deviceVersion != CAMERA_DEVICE_API_VERSION_3_2 &&
+            deviceVersion != CAMERA_DEVICE_API_VERSION_3_3 &&
+            deviceVersion != CAMERA_DEVICE_API_VERSION_3_4 &&
+            deviceVersion != CAMERA_DEVICE_API_VERSION_3_5 &&
+            deviceVersion != CAMERA_DEVICE_API_VERSION_3_6) {
+        return hidl_string("");
+    }
+
+    // Supported combinations:
+    // CAMERA_DEVICE_API_VERSION_1_0 -> ICameraDevice@1.0
+    // CAMERA_DEVICE_API_VERSION_3_[2-4] -> ICameraDevice@[3.2|3.3]
+    // CAMERA_DEVICE_API_VERSION_3_5 + CAMERA_MODULE_API_VERSION_2_4 -> ICameraDevice@3.4
+    // CAMERA_DEVICE_API_VERSION_3_[5-6] + CAMERA_MODULE_API_VERSION_2_5 -> ICameraDevice@3.5
+    bool isV1 = deviceVersion == CAMERA_DEVICE_API_VERSION_1_0;
+    int versionMajor = isV1 ? 1 : 3;
+    int versionMinor = isV1 ? 0 : mPreferredHal3MinorVersion;
+    if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_5) {
+        if (mModule->getModuleApiVersion() == CAMERA_MODULE_API_VERSION_2_5) {
+            versionMinor = 5;
+        } else {
+            versionMinor = 4;
+        }
+    } else if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_6) {
+        versionMinor = 5;
+    }
+    char deviceName[kMaxCameraDeviceNameLen];
+    snprintf(deviceName, sizeof(deviceName), "device@%d.%d/legacy/%s",
+            versionMajor, versionMinor, cameraId.c_str());
+    return deviceName;
+}
+
+LegacyCameraProviderImpl_2_4::LegacyCameraProviderImpl_2_4() :
+        camera_module_callbacks_t({sCameraDeviceStatusChange,
+                                   sTorchModeStatusChange}) {
+    mInitFailed = initialize();
+}
+
+LegacyCameraProviderImpl_2_4::~LegacyCameraProviderImpl_2_4() {}
+
+bool LegacyCameraProviderImpl_2_4::initialize() {
+    camera_module_t *rawModule;
+    int err = hw_get_module(CAMERA_HARDWARE_MODULE_ID,
+            (const hw_module_t **)&rawModule);
+    if (err < 0) {
+        ALOGE("Could not load camera HAL module: %d (%s)", err, strerror(-err));
+        return true;
+    }
+
+    mModule = new CameraModule(rawModule);
+    err = mModule->init();
+    if (err != OK) {
+        ALOGE("Could not initialize camera HAL module: %d (%s)", err, strerror(-err));
+        mModule.clear();
+        return true;
+    }
+    ALOGI("Loaded \"%s\" camera module", mModule->getModuleName());
+
+    // Setup vendor tags here so HAL can setup vendor keys in camera characteristics
+    VendorTagDescriptor::clearGlobalVendorTagDescriptor();
+    if (!setUpVendorTags()) {
+        ALOGE("%s: Vendor tag setup failed, will not be available.", __FUNCTION__);
+    }
+
+    // Setup callback now because we are going to try openLegacy next
+    err = mModule->setCallbacks(this);
+    if (err != OK) {
+        ALOGE("Could not set camera module callback: %d (%s)", err, strerror(-err));
+        mModule.clear();
+        return true;
+    }
+
+    mPreferredHal3MinorVersion =
+        property_get_int32("ro.vendor.camera.wrapper.hal3TrebleMinorVersion", 3);
+    ALOGV("Preferred HAL 3 minor version is %d", mPreferredHal3MinorVersion);
+    switch(mPreferredHal3MinorVersion) {
+        case 2:
+        case 3:
+            // OK
+            break;
+        default:
+            ALOGW("Unknown minor camera device HAL version %d in property "
+                    "'camera.wrapper.hal3TrebleMinorVersion', defaulting to 3",
+                    mPreferredHal3MinorVersion);
+            mPreferredHal3MinorVersion = 3;
+    }
+
+    mNumberOfLegacyCameras = mModule->getNumberOfCameras();
+    for (int i = 0; i < mNumberOfLegacyCameras; i++) {
+        struct camera_info info;
+        auto rc = mModule->getCameraInfo(i, &info);
+        if (rc != NO_ERROR) {
+            ALOGE("%s: Camera info query failed!", __func__);
+            mModule.clear();
+            return true;
+        }
+
+        if (checkCameraVersion(i, info) != OK) {
+            ALOGE("%s: Camera version check failed!", __func__);
+            mModule.clear();
+            return true;
+        }
+
+        char cameraId[kMaxCameraIdLen];
+        snprintf(cameraId, sizeof(cameraId), "%d", i);
+        std::string cameraIdStr(cameraId);
+        mCameraStatusMap[cameraIdStr] = CAMERA_DEVICE_STATUS_PRESENT;
+
+        addDeviceNames(i);
+    }
+
+    return false; // mInitFailed
+}
+
+/**
+ * Check that the device HAL version is still in supported.
+ */
+int LegacyCameraProviderImpl_2_4::checkCameraVersion(int id, camera_info info) {
+    if (mModule == nullptr) {
+        return NO_INIT;
+    }
+
+    // device_version undefined in CAMERA_MODULE_API_VERSION_1_0,
+    // All CAMERA_MODULE_API_VERSION_1_0 devices are backward-compatible
+    uint16_t moduleVersion = mModule->getModuleApiVersion();
+    if (moduleVersion >= CAMERA_MODULE_API_VERSION_2_0) {
+        // Verify the device version is in the supported range
+        switch (info.device_version) {
+            case CAMERA_DEVICE_API_VERSION_1_0:
+            case CAMERA_DEVICE_API_VERSION_3_2:
+            case CAMERA_DEVICE_API_VERSION_3_3:
+            case CAMERA_DEVICE_API_VERSION_3_4:
+            case CAMERA_DEVICE_API_VERSION_3_5:
+                // in support
+                break;
+            case CAMERA_DEVICE_API_VERSION_3_6:
+                /**
+                 * ICameraDevice@3.5 contains APIs from both
+                 * CAMERA_DEVICE_API_VERSION_3_6 and CAMERA_MODULE_API_VERSION_2_5
+                 * so we require HALs to uprev both for simplified supported combinations.
+                 * HAL can still opt in individual new APIs indepedently.
+                 */
+                if (moduleVersion < CAMERA_MODULE_API_VERSION_2_5) {
+                    ALOGE("%s: Device %d has unsupported version combination:"
+                            "HAL version %x and module version %x",
+                            __FUNCTION__, id, info.device_version, moduleVersion);
+                    return NO_INIT;
+                }
+                break;
+            case CAMERA_DEVICE_API_VERSION_2_0:
+            case CAMERA_DEVICE_API_VERSION_2_1:
+            case CAMERA_DEVICE_API_VERSION_3_0:
+            case CAMERA_DEVICE_API_VERSION_3_1:
+                // no longer supported
+            default:
+                ALOGE("%s: Device %d has HAL version %x, which is not supported",
+                        __FUNCTION__, id, info.device_version);
+                return NO_INIT;
+        }
+    }
+
+    return OK;
+}
+
+bool LegacyCameraProviderImpl_2_4::setUpVendorTags() {
+    ATRACE_CALL();
+    vendor_tag_ops_t vOps = vendor_tag_ops_t();
+
+    // Check if vendor operations have been implemented
+    if (!mModule->isVendorTagDefined()) {
+        ALOGI("%s: No vendor tags defined for this device.", __FUNCTION__);
+        return true;
+    }
+
+    mModule->getVendorTagOps(&vOps);
+
+    // Ensure all vendor operations are present
+    if (vOps.get_tag_count == nullptr || vOps.get_all_tags == nullptr ||
+            vOps.get_section_name == nullptr || vOps.get_tag_name == nullptr ||
+            vOps.get_tag_type == nullptr) {
+        ALOGE("%s: Vendor tag operations not fully defined. Ignoring definitions."
+               , __FUNCTION__);
+        return false;
+    }
+
+    // Read all vendor tag definitions into a descriptor
+    sp<VendorTagDescriptor> desc;
+    status_t res;
+    if ((res = VendorTagDescriptor::createDescriptorFromOps(&vOps, /*out*/desc))
+            != OK) {
+        ALOGE("%s: Could not generate descriptor from vendor tag operations,"
+              "received error %s (%d). Camera clients will not be able to use"
+              "vendor tags", __FUNCTION__, strerror(res), res);
+        return false;
+    }
+
+    // Set the global descriptor to use with camera metadata
+    VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
+    const SortedVector<String8>* sectionNames = desc->getAllSectionNames();
+    size_t numSections = sectionNames->size();
+    std::vector<std::vector<VendorTag>> tagsBySection(numSections);
+    int tagCount = desc->getTagCount();
+    std::vector<uint32_t> tags(tagCount);
+    desc->getTagArray(tags.data());
+    for (int i = 0; i < tagCount; i++) {
+        VendorTag vt;
+        vt.tagId = tags[i];
+        vt.tagName = desc->getTagName(tags[i]);
+        vt.tagType = (CameraMetadataType) desc->getTagType(tags[i]);
+        ssize_t sectionIdx = desc->getSectionIndex(tags[i]);
+        tagsBySection[sectionIdx].push_back(vt);
+    }
+    mVendorTagSections.resize(numSections);
+    for (size_t s = 0; s < numSections; s++) {
+        mVendorTagSections[s].sectionName = (*sectionNames)[s].string();
+        mVendorTagSections[s].tags = tagsBySection[s];
+    }
+    return true;
+}
+
+// Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
+Return<Status> LegacyCameraProviderImpl_2_4::setCallback(
+        const sp<ICameraProviderCallback>& callback) {
+    Mutex::Autolock _l(mCbLock);
+    mCallbacks = callback;
+
+    // Add and report all presenting external cameras.
+    for (auto const& statusPair : mCameraStatusMap) {
+        int id = std::stoi(statusPair.first);
+        auto status = static_cast<CameraDeviceStatus>(statusPair.second);
+        if (id >= mNumberOfLegacyCameras && status != CameraDeviceStatus::NOT_PRESENT) {
+            addDeviceNames(id, status, true);
+        }
+    }
+
+    return Status::OK;
+}
+
+Return<void> LegacyCameraProviderImpl_2_4::getVendorTags(
+        ICameraProvider::getVendorTags_cb _hidl_cb) {
+    _hidl_cb(Status::OK, mVendorTagSections);
+    return Void();
+}
+
+Return<void> LegacyCameraProviderImpl_2_4::getCameraIdList(
+        ICameraProvider::getCameraIdList_cb _hidl_cb) {
+    std::vector<hidl_string> deviceNameList;
+    for (auto const& deviceNamePair : mCameraDeviceNames) {
+        if (std::stoi(deviceNamePair.first) >= mNumberOfLegacyCameras) {
+            // External camera devices must be reported through the device status change callback,
+            // not in this list.
+            continue;
+        }
+        if (mCameraStatusMap[deviceNamePair.first] == CAMERA_DEVICE_STATUS_PRESENT) {
+            deviceNameList.push_back(deviceNamePair.second);
+        }
+    }
+    hidl_vec<hidl_string> hidlDeviceNameList(deviceNameList);
+    _hidl_cb(Status::OK, hidlDeviceNameList);
+    return Void();
+}
+
+Return<void> LegacyCameraProviderImpl_2_4::isSetTorchModeSupported(
+        ICameraProvider::isSetTorchModeSupported_cb _hidl_cb) {
+    bool support = mModule->isSetTorchModeSupported();
+    _hidl_cb (Status::OK, support);
+    return Void();
+}
+
+Return<void> LegacyCameraProviderImpl_2_4::getCameraDeviceInterface_V1_x(
+        const hidl_string& cameraDeviceName,
+        ICameraProvider::getCameraDeviceInterface_V1_x_cb _hidl_cb)  {
+    std::string cameraId, deviceVersion;
+    bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId);
+    if (!match) {
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+        return Void();
+    }
+
+    std::string deviceName(cameraDeviceName.c_str());
+    ssize_t index = mCameraDeviceNames.indexOf(std::make_pair(cameraId, deviceName));
+    if (index == NAME_NOT_FOUND) { // Either an illegal name or a device version mismatch
+        Status status = Status::OK;
+        ssize_t idx = mCameraIds.indexOf(cameraId);
+        if (idx == NAME_NOT_FOUND) {
+            ALOGE("%s: cannot find camera %s!", __FUNCTION__, cameraId.c_str());
+            status = Status::ILLEGAL_ARGUMENT;
+        } else { // invalid version
+            ALOGE("%s: camera device %s does not support version %s!",
+                    __FUNCTION__, cameraId.c_str(), deviceVersion.c_str());
+            status = Status::OPERATION_NOT_SUPPORTED;
+        }
+        _hidl_cb(status, nullptr);
+        return Void();
+    }
+
+    if (mCameraStatusMap.count(cameraId) == 0 ||
+            mCameraStatusMap[cameraId] != CAMERA_DEVICE_STATUS_PRESENT) {
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+        return Void();
+    }
+
+    sp<android::hardware::camera::device::V1_0::implementation::CameraDevice> device =
+            new android::hardware::camera::device::V1_0::implementation::CameraDevice(
+                    mModule, cameraId, mCameraDeviceNames);
+
+    if (device == nullptr) {
+        ALOGE("%s: cannot allocate camera device for id %s", __FUNCTION__, cameraId.c_str());
+        _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+        return Void();
+    }
+
+    if (device->isInitFailed()) {
+        ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
+        device = nullptr;
+        _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+        return Void();
+    }
+
+    _hidl_cb (Status::OK, device);
+    return Void();
+}
+
+Return<void> LegacyCameraProviderImpl_2_4::getCameraDeviceInterface_V3_x(
+        const hidl_string& cameraDeviceName,
+        ICameraProvider::getCameraDeviceInterface_V3_x_cb _hidl_cb)  {
+    std::string cameraId, deviceVersion;
+    bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId);
+    if (!match) {
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+        return Void();
+    }
+
+    std::string deviceName(cameraDeviceName.c_str());
+    ssize_t index = mCameraDeviceNames.indexOf(std::make_pair(cameraId, deviceName));
+    if (index == NAME_NOT_FOUND) { // Either an illegal name or a device version mismatch
+        Status status = Status::OK;
+        ssize_t idx = mCameraIds.indexOf(cameraId);
+        if (idx == NAME_NOT_FOUND) {
+            ALOGE("%s: cannot find camera %s!", __FUNCTION__, cameraId.c_str());
+            status = Status::ILLEGAL_ARGUMENT;
+        } else { // invalid version
+            ALOGE("%s: camera device %s does not support version %s!",
+                    __FUNCTION__, cameraId.c_str(), deviceVersion.c_str());
+            status = Status::OPERATION_NOT_SUPPORTED;
+        }
+        _hidl_cb(status, nullptr);
+        return Void();
+    }
+
+    if (mCameraStatusMap.count(cameraId) == 0 ||
+            mCameraStatusMap[cameraId] != CAMERA_DEVICE_STATUS_PRESENT) {
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+        return Void();
+    }
+
+    sp<android::hardware::camera::device::V3_2::implementation::CameraDevice> deviceImpl;
+
+    // ICameraDevice 3.4 or upper
+    if (deviceVersion >= kHAL3_4) {
+        ALOGV("Constructing v3.4+ camera device");
+        if (deviceVersion == kHAL3_4) {
+            deviceImpl = new android::hardware::camera::device::V3_4::implementation::CameraDevice(
+                    mModule, cameraId, mCameraDeviceNames);
+        } else if (deviceVersion == kHAL3_5) {
+            deviceImpl = new android::hardware::camera::device::V3_5::implementation::CameraDevice(
+                    mModule, cameraId, mCameraDeviceNames);
+        }
+        if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
+            ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
+            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+            return Void();
+        }
+        IF_ALOGV() {
+            deviceImpl->getInterface()->interfaceChain([](
+                ::android::hardware::hidl_vec<::android::hardware::hidl_string> interfaceChain) {
+                    ALOGV("Device interface chain:");
+                    for (auto iface : interfaceChain) {
+                        ALOGV("  %s", iface.c_str());
+                    }
+                });
+        }
+        _hidl_cb (Status::OK, deviceImpl->getInterface());
+        return Void();
+    }
+
+    // ICameraDevice 3.2 and 3.3
+    // Since some Treble HAL revisions can map to the same legacy HAL version(s), we default
+    // to the newest possible Treble HAL revision, but allow for override if needed via
+    // system property.
+    switch (mPreferredHal3MinorVersion) {
+        case 2: { // Map legacy camera device v3 HAL to Treble camera device HAL v3.2
+            ALOGV("Constructing v3.2 camera device");
+            deviceImpl = new android::hardware::camera::device::V3_2::implementation::CameraDevice(
+                    mModule, cameraId, mCameraDeviceNames);
+            if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
+                ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
+                _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+                return Void();
+            }
+            break;
+        }
+        case 3: { // Map legacy camera device v3 HAL to Treble camera device HAL v3.3
+            ALOGV("Constructing v3.3 camera device");
+            deviceImpl = new android::hardware::camera::device::V3_3::implementation::CameraDevice(
+                    mModule, cameraId, mCameraDeviceNames);
+            if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
+                ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str());
+                _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+                return Void();
+            }
+            break;
+        }
+        default:
+            ALOGE("%s: Unknown HAL minor version %d!", __FUNCTION__, mPreferredHal3MinorVersion);
+            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+            return Void();
+    }
+
+    _hidl_cb (Status::OK, deviceImpl->getInterface());
+    return Void();
+}
+
+} // namespace implementation
+}  // namespace V2_4
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/provider/2.4/default/LegacyCameraProviderImpl_2_4.h b/camera/provider/2.4/default/LegacyCameraProviderImpl_2_4.h
new file mode 100644
index 0000000..b4914b3
--- /dev/null
+++ b/camera/provider/2.4/default/LegacyCameraProviderImpl_2_4.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_LEGACYCAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_LEGACYCAMERAPROVIDER_H
+
+#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+#include "hardware/camera_common.h"
+#include "utils/Mutex.h"
+#include "utils/SortedVector.h"
+
+#include "CameraModule.h"
+#include "VendorTagDescriptor.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_4 {
+namespace implementation {
+
+using ::android::hardware::camera::common::V1_0::CameraDeviceStatus;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::TorchModeStatus;
+using ::android::hardware::camera::common::V1_0::VendorTag;
+using ::android::hardware::camera::common::V1_0::VendorTagSection;
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+using ::android::hardware::camera::common::V1_0::helper::VendorTagDescriptor;
+using ::android::hardware::camera::provider::V2_4::ICameraProvider;
+using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+using ::android::Mutex;
+
+/**
+ * The implementation of legacy wrapper CameraProvider 2.4, separated
+ * from the HIDL interface layer to allow for implementation reuse by later
+ * provider versions.
+ *
+ * This implementation supports cameras implemented via the legacy libhardware
+ * camera HAL definitions.
+ */
+struct LegacyCameraProviderImpl_2_4 : public camera_module_callbacks_t {
+    LegacyCameraProviderImpl_2_4();
+    ~LegacyCameraProviderImpl_2_4();
+
+    // Caller must use this method to check if CameraProvider ctor failed
+    bool isInitFailed() { return mInitFailed; }
+
+    // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
+    Return<Status> setCallback(const sp<ICameraProviderCallback>& callback);
+    Return<void> getVendorTags(ICameraProvider::getVendorTags_cb _hidl_cb);
+    Return<void> getCameraIdList(ICameraProvider::getCameraIdList_cb _hidl_cb);
+    Return<void> isSetTorchModeSupported(ICameraProvider::isSetTorchModeSupported_cb _hidl_cb);
+    Return<void> getCameraDeviceInterface_V1_x(
+            const hidl_string& cameraDeviceName,
+            ICameraProvider::getCameraDeviceInterface_V1_x_cb _hidl_cb);
+    Return<void> getCameraDeviceInterface_V3_x(
+            const hidl_string& cameraDeviceName,
+            ICameraProvider::getCameraDeviceInterface_V3_x_cb _hidl_cb);
+
+protected:
+    Mutex mCbLock;
+    sp<ICameraProviderCallback> mCallbacks = nullptr;
+
+    sp<CameraModule> mModule;
+
+    int mNumberOfLegacyCameras;
+    std::map<std::string, camera_device_status_t> mCameraStatusMap; // camera id -> status
+    std::map<std::string, bool> mOpenLegacySupported; // camera id -> open_legacy HAL1.0 supported
+    SortedVector<std::string> mCameraIds; // the "0"/"1" legacy camera Ids
+    // (cameraId string, hidl device name) pairs
+    SortedVector<std::pair<std::string, std::string>> mCameraDeviceNames;
+
+    int mPreferredHal3MinorVersion;
+
+    // Must be queried before using any APIs.
+    // APIs will only work when this returns true
+    bool mInitFailed;
+    bool initialize();
+
+    hidl_vec<VendorTagSection> mVendorTagSections;
+    bool setUpVendorTags();
+    int checkCameraVersion(int id, camera_info info);
+
+    // create HIDL device name from camera ID and legacy device version
+    std::string getHidlDeviceName(std::string cameraId, int deviceVersion);
+
+    // extract legacy camera ID/device version from a HIDL device name
+    static std::string getLegacyCameraId(const hidl_string& deviceName);
+
+    // convert conventional HAL status to HIDL Status
+    static Status getHidlStatus(int);
+
+    // static callback forwarding methods
+    static void sCameraDeviceStatusChange(
+        const struct camera_module_callbacks* callbacks,
+        int camera_id,
+        int new_status);
+    static void sTorchModeStatusChange(
+        const struct camera_module_callbacks* callbacks,
+        const char* camera_id,
+        int new_status);
+
+    void addDeviceNames(int camera_id, CameraDeviceStatus status = CameraDeviceStatus::PRESENT,
+                        bool cam_new = false);
+    void removeDeviceNames(int camera_id);
+
+};
+
+}  // namespace implementation
+}  // namespace V2_4
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_LEGACYCAMERAPROVIDER_H
diff --git a/camera/provider/2.4/default/OWNERS b/camera/provider/2.4/default/OWNERS
index 18acfee..369b204 100644
--- a/camera/provider/2.4/default/OWNERS
+++ b/camera/provider/2.4/default/OWNERS
@@ -1,6 +1,7 @@
 cychen@google.com
 epeev@google.com
 etalvala@google.com
+jchowdhary@google.com
 shuzhenwang@google.com
 yinchiayeh@google.com
 zhijunhe@google.com
diff --git a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-external-service.rc b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-external-service.rc
index acdb200..64cf321 100644
--- a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-external-service.rc
+++ b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-external-service.rc
@@ -1,4 +1,5 @@
 service vendor.camera-provider-2-4-ext /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service
+    interface android.hardware.camera.provider@2.4::ICameraProvider external/0
     class hal
     user cameraserver
     group audio camera input drmrpc usb
diff --git a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service-lazy.rc b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service-lazy.rc
new file mode 100644
index 0000000..e8549ed
--- /dev/null
+++ b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service-lazy.rc
@@ -0,0 +1,10 @@
+service vendor.camera-provider-2-4 /vendor/bin/hw/android.hardware.camera.provider@2.4-service-lazy
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
+    oneshot
+    disabled
+    class hal
+    user cameraserver
+    group audio camera input drmrpc
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service-lazy_64.rc b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service-lazy_64.rc
new file mode 100644
index 0000000..2dfac76
--- /dev/null
+++ b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service-lazy_64.rc
@@ -0,0 +1,10 @@
+service vendor.camera-provider-2-4 /vendor/bin/hw/android.hardware.camera.provider@2.4-service-lazy_64
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
+    oneshot
+    disabled
+    class hal
+    user cameraserver
+    group audio camera input drmrpc
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service.rc b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service.rc
index c919628..913561b 100644
--- a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service.rc
+++ b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service.rc
@@ -1,4 +1,5 @@
 service vendor.camera-provider-2-4 /vendor/bin/hw/android.hardware.camera.provider@2.4-service
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
     class hal
     user cameraserver
     group audio camera input drmrpc
diff --git a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service_64.rc b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service_64.rc
index 4c721ec..fd4826e 100644
--- a/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service_64.rc
+++ b/camera/provider/2.4/default/android.hardware.camera.provider@2.4-service_64.rc
@@ -1,4 +1,5 @@
 service vendor.camera-provider-2-4 /vendor/bin/hw/android.hardware.camera.provider@2.4-service_64
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
     class hal
     user cameraserver
     group audio camera input drmrpc
diff --git a/camera/provider/2.4/default/service.cpp b/camera/provider/2.4/default/service.cpp
index 7eeb637..4475f7d 100644
--- a/camera/provider/2.4/default/service.cpp
+++ b/camera/provider/2.4/default/service.cpp
@@ -14,21 +14,40 @@
  * limitations under the License.
  */
 
+#ifdef LAZY_SERVICE
+#define LOG_TAG "android.hardware.camera.provider@2.4-service-lazy"
+#else
 #define LOG_TAG "android.hardware.camera.provider@2.4-service"
+#endif
 
 #include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+#include <binder/ProcessState.h>
 #include <hidl/LegacySupport.h>
 
-#include <binder/ProcessState.h>
-
-using android::hardware::camera::provider::V2_4::ICameraProvider;
+using android::status_t;
+using android::hardware::defaultLazyPassthroughServiceImplementation;
 using android::hardware::defaultPassthroughServiceImplementation;
+using android::hardware::camera::provider::V2_4::ICameraProvider;
+
+#ifdef LAZY_SERVICE
+const bool kLazyService = true;
+#else
+const bool kLazyService = false;
+#endif
 
 int main()
 {
-    ALOGI("Camera provider Service is starting.");
+    ALOGI("CameraProvider@2.4 legacy service is starting.");
     // The camera HAL may communicate to other vendor components via
     // /dev/vndbinder
     android::ProcessState::initWithDriver("/dev/vndbinder");
-    return defaultPassthroughServiceImplementation<ICameraProvider>("legacy/0", /*maxThreads*/ 6);
+    status_t status;
+    if (kLazyService) {
+        status = defaultLazyPassthroughServiceImplementation<ICameraProvider>("legacy/0",
+                                                                              /*maxThreads*/ 6);
+    } else {
+        status = defaultPassthroughServiceImplementation<ICameraProvider>("legacy/0",
+                                                                          /*maxThreads*/ 6);
+    }
+    return status;
 }
diff --git a/camera/provider/2.4/vts/functional/Android.bp b/camera/provider/2.4/vts/functional/Android.bp
index c71ce2f..5fb1fd8 100644
--- a/camera/provider/2.4/vts/functional/Android.bp
+++ b/camera/provider/2.4/vts/functional/Android.bp
@@ -37,7 +37,10 @@
         "android.hardware.camera.device@3.2",
         "android.hardware.camera.device@3.3",
         "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+	"android.hardware.camera.metadata@3.4",
         "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.provider@2.5",
         "android.hardware.graphics.allocator@2.0",
         "android.hardware.graphics.common@1.0",
         "android.hardware.graphics.mapper@2.0",
diff --git a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
index 22b7382..3949346 100644
--- a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
+++ b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
@@ -28,10 +28,15 @@
 
 #include <android/hardware/camera/device/1.0/ICameraDevice.h>
 #include <android/hardware/camera/device/3.2/ICameraDevice.h>
+#include <android/hardware/camera/device/3.5/ICameraDevice.h>
 #include <android/hardware/camera/device/3.3/ICameraDeviceSession.h>
 #include <android/hardware/camera/device/3.4/ICameraDeviceSession.h>
+#include <android/hardware/camera/device/3.5/ICameraDeviceSession.h>
 #include <android/hardware/camera/device/3.4/ICameraDeviceCallback.h>
+#include <android/hardware/camera/device/3.5/ICameraDeviceCallback.h>
 #include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+#include <android/hardware/camera/provider/2.5/ICameraProvider.h>
+#include <android/hardware/camera/metadata/3.4/types.h>
 #include <android/hidl/manager/1.0/IServiceManager.h>
 #include <binder/MemoryHeapBase.h>
 #include <CameraMetadata.h>
@@ -61,6 +66,7 @@
 using namespace ::android::hardware::camera::device;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
+using ::android::hardware::hidl_bitfield;
 using ::android::hardware::hidl_handle;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
@@ -109,6 +115,9 @@
 using ::android::hardware::camera::device::V1_0::ICameraDevicePreviewCallback;
 using ::android::hardware::camera::device::V1_0::FrameCallbackFlag;
 using ::android::hardware::camera::device::V1_0::HandleTimestampMessage;
+using ::android::hardware::camera::metadata::V3_4::CameraMetadataEnumAndroidSensorInfoColorFilterArrangement;
+using ::android::hardware::camera::metadata::V3_4::CameraMetadataTag;
+using ::android::hardware::camera::device::V3_4::PhysicalCameraMetadata;
 using ::android::hardware::MessageQueue;
 using ::android::hardware::kSynchronizedReadWrite;
 using ::android::hidl::allocator::V1_0::IAllocator;
@@ -129,6 +138,7 @@
 const int64_t kEmptyFlushTimeoutMSec = 200;
 const char kDumpOutput[] = "/dev/null";
 const uint32_t kBurstFrameCount = 10;
+const int64_t kBufferReturnTimeoutSec = 1;
 
 struct AvailableStream {
     int32_t width;
@@ -141,13 +151,20 @@
     int32_t outputFormat;
 };
 
+enum ReprocessType {
+    PRIV_REPROCESS,
+    YUV_REPROCESS,
+};
+
 namespace {
     // "device@<version>/legacy/<id>"
     const char *kDeviceNameRE = "device@([0-9]+\\.[0-9]+)/%s/(.+)";
+    const int CAMERA_DEVICE_API_VERSION_3_5 = 0x305;
     const int CAMERA_DEVICE_API_VERSION_3_4 = 0x304;
     const int CAMERA_DEVICE_API_VERSION_3_3 = 0x303;
     const int CAMERA_DEVICE_API_VERSION_3_2 = 0x302;
     const int CAMERA_DEVICE_API_VERSION_1_0 = 0x100;
+    const char *kHAL3_5 = "3.5";
     const char *kHAL3_4 = "3.4";
     const char *kHAL3_3 = "3.3";
     const char *kHAL3_2 = "3.2";
@@ -182,7 +199,9 @@
             return -1;
         }
 
-        if (version.compare(kHAL3_4) == 0) {
+        if (version.compare(kHAL3_5) == 0) {
+            return CAMERA_DEVICE_API_VERSION_3_5;
+        } else if (version.compare(kHAL3_4) == 0) {
             return CAMERA_DEVICE_API_VERSION_3_4;
         } else if (version.compare(kHAL3_3) == 0) {
             return CAMERA_DEVICE_API_VERSION_3_3;
@@ -526,12 +545,15 @@
 
      uint32_t id;
      ASSERT_TRUE(parseProviderName(service_name, &mProviderType, &id));
+
+     castProvider(mProvider, &mProvider2_5);
+     notifyDeviceState(provider::V2_5::DeviceState::NORMAL);
  }
  virtual void TearDown() override {}
 
  hidl_vec<hidl_string> getCameraDeviceNames(sp<ICameraProvider> provider);
 
- struct EmptyDeviceCb : public V3_4::ICameraDeviceCallback {
+    struct EmptyDeviceCb : public V3_5::ICameraDeviceCallback {
      virtual Return<void> processCaptureResult(
          const hidl_vec<CaptureResult>& /*results*/) override {
          ALOGI("processCaptureResult callback");
@@ -551,19 +573,65 @@
          ADD_FAILURE();  // Empty callback should not reach here
          return Void();
      }
+
+     virtual Return<void> requestStreamBuffers(
+             const hidl_vec<V3_5::BufferRequest>&,
+             requestStreamBuffers_cb _hidl_cb) override {
+         ALOGI("requestStreamBuffers callback");
+         // HAL might want to request buffer after configureStreams, but tests with EmptyDeviceCb
+         // doesn't actually need to send capture requests, so just return an error.
+         hidl_vec<V3_5::StreamBufferRet> emptyBufRets;
+         _hidl_cb(V3_5::BufferRequestStatus::FAILED_UNKNOWN, emptyBufRets);
+         return Void();
+     }
+
+     virtual Return<void> returnStreamBuffers(const hidl_vec<StreamBuffer>&) override {
+         ALOGI("returnStreamBuffers");
+         ADD_FAILURE();  // Empty callback should not reach here
+         return Void();
+     }
+
     };
 
-    struct DeviceCb : public V3_4::ICameraDeviceCallback {
-        DeviceCb(CameraHidlTest *parent) : mParent(parent) {}
+    struct DeviceCb : public V3_5::ICameraDeviceCallback {
+        DeviceCb(CameraHidlTest *parent, int deviceVersion, const camera_metadata_t *staticMeta) :
+                mParent(parent), mDeviceVersion(deviceVersion), mStaticMetadata(staticMeta) {}
+
         Return<void> processCaptureResult_3_4(
                 const hidl_vec<V3_4::CaptureResult>& results) override;
         Return<void> processCaptureResult(const hidl_vec<CaptureResult>& results) override;
         Return<void> notify(const hidl_vec<NotifyMsg>& msgs) override;
 
-     private:
-        bool processCaptureResultLocked(const CaptureResult& results);
+        Return<void> requestStreamBuffers(
+                const hidl_vec<V3_5::BufferRequest>& bufReqs,
+                requestStreamBuffers_cb _hidl_cb) override;
 
-        CameraHidlTest *mParent;               // Parent object
+        Return<void> returnStreamBuffers(const hidl_vec<StreamBuffer>& buffers) override;
+
+        void setCurrentStreamConfig(const hidl_vec<V3_2::Stream>& streams,
+                const hidl_vec<V3_2::HalStream>& halStreams);
+
+        void waitForBuffersReturned();
+
+     private:
+        bool processCaptureResultLocked(const CaptureResult& results,
+                hidl_vec<PhysicalCameraMetadata> physicalCameraMetadata);
+
+        CameraHidlTest *mParent; // Parent object
+        int mDeviceVersion;
+        const camera_metadata_t *mStaticMetadata;
+        bool hasOutstandingBuffersLocked();
+
+        /* members for requestStreamBuffers() and returnStreamBuffers()*/
+        std::mutex mLock; // protecting members below
+        bool                      mUseHalBufManager = false;
+        hidl_vec<V3_2::Stream>    mStreams;
+        hidl_vec<V3_2::HalStream> mHalStreams;
+        uint64_t mNextBufferId = 1;
+        using OutstandingBuffers = std::unordered_map<uint64_t, hidl_handle>;
+        // size == mStreams.size(). Tracking each streams outstanding buffers
+        std::vector<OutstandingBuffers> mOutstandingBufferIds;
+        std::condition_variable mFlushedCondition;
     };
 
     struct TorchProviderCb : public ICameraProviderCallback {
@@ -617,6 +685,8 @@
         CameraHidlTest *mParent;               // Parent object
     };
 
+    void notifyDeviceState(::android::hardware::camera::provider::V2_5::DeviceState newState);
+
     void openCameraDevice(const std::string &name, sp<ICameraProvider> provider,
             sp<::android::hardware::camera::device::V1_0::ICameraDevice> *device /*out*/);
     void setupPreviewWindow(
@@ -644,14 +714,21 @@
     void openEmptyDeviceSession(const std::string &name,
             sp<ICameraProvider> provider,
             sp<ICameraDeviceSession> *session /*out*/,
-            camera_metadata_t **staticMeta /*out*/);
+            camera_metadata_t **staticMeta /*out*/,
+            ::android::sp<ICameraDevice> *device = nullptr/*out*/);
+    void castProvider(const sp<provider::V2_4::ICameraProvider> &provider,
+            sp<provider::V2_5::ICameraProvider> *provider2_5 /*out*/);
     void castSession(const sp<ICameraDeviceSession> &session, int32_t deviceVersion,
             sp<device::V3_3::ICameraDeviceSession> *session3_3 /*out*/,
-            sp<device::V3_4::ICameraDeviceSession> *session3_4 /*out*/);
+            sp<device::V3_4::ICameraDeviceSession> *session3_4 /*out*/,
+            sp<device::V3_5::ICameraDeviceSession> *session3_5 /*out*/);
+    void castDevice(const sp<device::V3_2::ICameraDevice> &device, int32_t deviceVersion,
+            sp<device::V3_5::ICameraDevice> *device3_5/*out*/);
     void createStreamConfiguration(const ::android::hardware::hidl_vec<V3_2::Stream>& streams3_2,
             StreamConfigurationMode configMode,
             ::android::hardware::camera::device::V3_2::StreamConfiguration *config3_2,
             ::android::hardware::camera::device::V3_4::StreamConfiguration *config3_4,
+            ::android::hardware::camera::device::V3_5::StreamConfiguration *config3_5,
             uint32_t jpegBufferSize = 0);
 
     void configurePreviewStreams3_4(const std::string &name, int32_t deviceVersion,
@@ -659,10 +736,14 @@
             const AvailableStream *previewThreshold,
             const std::unordered_set<std::string>& physicalIds,
             sp<device::V3_4::ICameraDeviceSession> *session3_4 /*out*/,
+            sp<device::V3_5::ICameraDeviceSession> *session3_5 /*out*/,
             V3_2::Stream* previewStream /*out*/,
             device::V3_4::HalStreamConfiguration *halStreamConfig /*out*/,
             bool *supportsPartialResults /*out*/,
-            uint32_t *partialResultCount /*out*/);
+            uint32_t *partialResultCount /*out*/,
+            bool *useHalBufManager /*out*/,
+            sp<DeviceCb> *cb /*out*/,
+            uint32_t streamConfigCounter = 0);
     void configurePreviewStream(const std::string &name, int32_t deviceVersion,
             sp<ICameraProvider> provider,
             const AvailableStream *previewThreshold,
@@ -670,15 +751,45 @@
             V3_2::Stream *previewStream /*out*/,
             HalStreamConfiguration *halStreamConfig /*out*/,
             bool *supportsPartialResults /*out*/,
-            uint32_t *partialResultCount /*out*/);
+            uint32_t *partialResultCount /*out*/,
+            bool *useHalBufManager /*out*/,
+            sp<DeviceCb> *cb /*out*/,
+            uint32_t streamConfigCounter = 0);
+
+    void verifyLogicalCameraMetadata(const std::string& cameraName,
+            const ::android::sp<::android::hardware::camera::device::V3_2::ICameraDevice>& device,
+            const CameraMetadata& chars, int deviceVersion,
+            const hidl_vec<hidl_string>& deviceNames);
+    void verifyCameraCharacteristics(Status status, const CameraMetadata& chars);
+    void verifyRecommendedConfigs(const CameraMetadata& metadata);
+    void verifyMonochromeCharacteristics(const CameraMetadata& chars, int deviceVersion);
+    void verifyMonochromeCameraResult(
+            const ::android::hardware::camera::common::V1_0::helper::CameraMetadata& metadata);
+    void verifyStreamCombination(sp<device::V3_5::ICameraDevice> cameraDevice3_5,
+            const ::android::hardware::camera::device::V3_4::StreamConfiguration &config3_4,
+            bool expectedStatus);
+    void verifyLogicalCameraResult(const camera_metadata_t* staticMetadata,
+            const ::android::hardware::camera::common::V1_0::helper::CameraMetadata& resultMetadata);
+
+    void verifyBuffersReturned(sp<device::V3_2::ICameraDeviceSession> session,
+            int deviceVerison, int32_t streamId, sp<DeviceCb> cb,
+            uint32_t streamConfigCounter = 0);
+
+    void verifyBuffersReturned(sp<device::V3_4::ICameraDeviceSession> session,
+            hidl_vec<int32_t> streamIds, sp<DeviceCb> cb,
+            uint32_t streamConfigCounter = 0);
+
+    void verifySessionReconfigurationQuery(sp<device::V3_5::ICameraDeviceSession> session3_5,
+            camera_metadata* oldSessionParams, camera_metadata* newSessionParams);
+
     static Status getAvailableOutputStreams(camera_metadata_t *staticMeta,
             std::vector<AvailableStream> &outputStreams,
             const AvailableStream *threshold = nullptr);
     static Status getJpegBufferSize(camera_metadata_t *staticMeta,
             uint32_t* outBufSize);
     static Status isConstrainedModeAvailable(camera_metadata_t *staticMeta);
-    static Status isLogicalMultiCamera(camera_metadata_t *staticMeta);
-    static Status getPhysicalCameraIds(camera_metadata_t *staticMeta,
+    static Status isLogicalMultiCamera(const camera_metadata_t *staticMeta);
+    static Status getPhysicalCameraIds(const camera_metadata_t *staticMeta,
             std::unordered_set<std::string> *physicalIds/*out*/);
     static Status getSupportedKeys(camera_metadata_t *staticMeta,
             uint32_t tagId, std::unordered_set<int32_t> *requestIDs/*out*/);
@@ -689,7 +800,8 @@
             /*out*/);
     static Status pickConstrainedModeSize(camera_metadata_t *staticMeta,
             AvailableStream &hfrStream);
-    static Status isZSLModeAvailable(camera_metadata_t *staticMeta);
+    static Status isZSLModeAvailable(const camera_metadata_t *staticMeta);
+    static Status isZSLModeAvailable(const camera_metadata_t *staticMeta, ReprocessType reprocType);
     static Status getZSLInputOutputMap(camera_metadata_t *staticMeta,
             std::vector<AvailableZSLInputOutput> &inputOutputMap);
     static Status findLargestSize(
@@ -697,6 +809,7 @@
             int32_t format, AvailableStream &result);
     static Status isAutoFocusModeAvailable(
             CameraParameters &cameraParams, const char *mode) ;
+    static Status isMonochromeCamera(const camera_metadata_t *staticMeta);
 
 protected:
 
@@ -797,6 +910,8 @@
 
     // Camera provider service
     sp<ICameraProvider> mProvider;
+    sp<::android::hardware::camera::provider::V2_5::ICameraProvider> mProvider2_5;
+
     // Camera provider type.
     std::string mProviderType;
 };
@@ -913,7 +1028,7 @@
     bool notify = false;
     std::unique_lock<std::mutex> l(mParent->mLock);
     for (size_t i = 0 ; i < results.size(); i++) {
-        notify = processCaptureResultLocked(results[i].v3_2);
+        notify = processCaptureResultLocked(results[i].v3_2, results[i].physicalCameraMetadata);
     }
 
     l.unlock();
@@ -932,8 +1047,9 @@
 
     bool notify = false;
     std::unique_lock<std::mutex> l(mParent->mLock);
+    ::android::hardware::hidl_vec<PhysicalCameraMetadata> noPhysMetadata;
     for (size_t i = 0 ; i < results.size(); i++) {
-        notify = processCaptureResultLocked(results[i]);
+        notify = processCaptureResultLocked(results[i], noPhysMetadata);
     }
 
     l.unlock();
@@ -944,7 +1060,8 @@
     return Void();
 }
 
-bool CameraHidlTest::DeviceCb::processCaptureResultLocked(const CaptureResult& results) {
+bool CameraHidlTest::DeviceCb::processCaptureResultLocked(const CaptureResult& results,
+        hidl_vec<PhysicalCameraMetadata> physicalCameraMetadata) {
     bool notify = false;
     uint32_t frameNumber = results.frameNumber;
 
@@ -985,6 +1102,20 @@
             ADD_FAILURE();
             return notify;
         }
+
+        std::vector<::android::hardware::camera::device::V3_2::CameraMetadata> physResultMetadata;
+        physResultMetadata.resize(physicalCameraMetadata.size());
+        for (size_t i = 0; i < physicalCameraMetadata.size(); i++) {
+            physResultMetadata[i].resize(physicalCameraMetadata[i].fmqMetadataSize);
+            if (!request->resultQueue->read(physResultMetadata[i].data(),
+                    physicalCameraMetadata[i].fmqMetadataSize)) {
+                ALOGE("%s: Frame %d: Cannot read physical camera metadata from fmq,"
+                        "size = %" PRIu64, __func__, frameNumber,
+                        physicalCameraMetadata[i].fmqMetadataSize);
+                ADD_FAILURE();
+                return notify;
+            }
+        }
         resultSize = resultMetadata.size();
     } else if (results.result.size() > 0) {
         resultMetadata.setToExternal(const_cast<uint8_t *>(
@@ -1040,6 +1171,23 @@
         }
         request->haveResultMetadata = true;
         request->collectedResult.sort();
+
+        // Verify final result metadata
+        bool isAtLeast_3_5 = mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_5;
+        if (isAtLeast_3_5) {
+            bool isMonochrome = Status::OK ==
+                    CameraHidlTest::isMonochromeCamera(mStaticMetadata);
+            if (isMonochrome) {
+                mParent->verifyMonochromeCameraResult(request->collectedResult);
+            }
+
+            // Verify logical camera result metadata
+            bool isLogicalCamera =
+                    Status::OK == CameraHidlTest::isLogicalMultiCamera(mStaticMetadata);
+            if (isLogicalCamera) {
+                mParent->verifyLogicalCameraResult(mStaticMetadata, request->collectedResult);
+            }
+        }
     }
 
     uint32_t numBuffersReturned = results.outputBuffers.size();
@@ -1065,9 +1213,51 @@
     if (request->shutterTimestamp != 0) {
         notify = true;
     }
+
+    if (mUseHalBufManager) {
+        returnStreamBuffers(results.outputBuffers);
+    }
     return notify;
 }
 
+void CameraHidlTest::DeviceCb::setCurrentStreamConfig(
+        const hidl_vec<V3_2::Stream>& streams, const hidl_vec<V3_2::HalStream>& halStreams) {
+    ASSERT_EQ(streams.size(), halStreams.size());
+    ASSERT_NE(streams.size(), 0);
+    for (size_t i = 0; i < streams.size(); i++) {
+        ASSERT_EQ(streams[i].id, halStreams[i].id);
+    }
+    std::lock_guard<std::mutex> l(mLock);
+    mUseHalBufManager = true;
+    mStreams = streams;
+    mHalStreams = halStreams;
+    mOutstandingBufferIds.clear();
+    for (size_t i = 0; i < streams.size(); i++) {
+        mOutstandingBufferIds.emplace_back();
+    }
+}
+
+bool CameraHidlTest::DeviceCb::hasOutstandingBuffersLocked() {
+    if (!mUseHalBufManager) {
+        return false;
+    }
+    for (const auto& outstandingBuffers : mOutstandingBufferIds) {
+        if (!outstandingBuffers.empty()) {
+            return true;
+        }
+    }
+    return false;
+}
+
+void CameraHidlTest::DeviceCb::waitForBuffersReturned() {
+    std::unique_lock<std::mutex> lk(mLock);
+    if (hasOutstandingBuffersLocked()) {
+        auto timeout = std::chrono::seconds(kBufferReturnTimeoutSec);
+        auto st = mFlushedCondition.wait_for(lk, timeout);
+        ASSERT_NE(std::cv_status::timeout, st);
+    }
+}
+
 Return<void> CameraHidlTest::DeviceCb::notify(
         const hidl_vec<NotifyMsg>& messages) {
     std::lock_guard<std::mutex> l(mParent->mLock);
@@ -1110,6 +1300,124 @@
     return Void();
 }
 
+Return<void> CameraHidlTest::DeviceCb::requestStreamBuffers(
+        const hidl_vec<V3_5::BufferRequest>& bufReqs,
+        requestStreamBuffers_cb _hidl_cb) {
+    using V3_5::BufferRequestStatus;
+    using V3_5::StreamBufferRet;
+    using V3_5::StreamBufferRequestError;
+    hidl_vec<StreamBufferRet> bufRets;
+    std::unique_lock<std::mutex> l(mLock);
+
+    if (!mUseHalBufManager) {
+        ALOGE("%s: Camera does not support HAL buffer management", __FUNCTION__);
+        ADD_FAILURE();
+        _hidl_cb(BufferRequestStatus::FAILED_ILLEGAL_ARGUMENTS, bufRets);
+        return Void();
+    }
+
+    if (bufReqs.size() > mStreams.size()) {
+        ALOGE("%s: illegal buffer request: too many requests!", __FUNCTION__);
+        ADD_FAILURE();
+        _hidl_cb(BufferRequestStatus::FAILED_ILLEGAL_ARGUMENTS, bufRets);
+        return Void();
+    }
+
+    std::vector<int32_t> indexes(bufReqs.size());
+    for (size_t i = 0; i < bufReqs.size(); i++) {
+        bool found = false;
+        for (size_t idx = 0; idx < mStreams.size(); idx++) {
+            if (bufReqs[i].streamId == mStreams[idx].id) {
+                found = true;
+                indexes[i] = idx;
+                break;
+            }
+        }
+        if (!found) {
+            ALOGE("%s: illegal buffer request: unknown streamId %d!",
+                    __FUNCTION__, bufReqs[i].streamId);
+            ADD_FAILURE();
+            _hidl_cb(BufferRequestStatus::FAILED_ILLEGAL_ARGUMENTS, bufRets);
+            return Void();
+        }
+    }
+
+    bool allStreamOk = true;
+    bool atLeastOneStreamOk = false;
+    bufRets.resize(bufReqs.size());
+    for (size_t i = 0; i < bufReqs.size(); i++) {
+        int32_t idx = indexes[i];
+        const auto& stream = mStreams[idx];
+        const auto& halStream = mHalStreams[idx];
+        const V3_5::BufferRequest& bufReq = bufReqs[i];
+        if (mOutstandingBufferIds[idx].size() + bufReq.numBuffersRequested > halStream.maxBuffers) {
+            bufRets[i].streamId = stream.id;
+            bufRets[i].val.error(StreamBufferRequestError::MAX_BUFFER_EXCEEDED);
+            allStreamOk = false;
+            continue;
+        }
+
+        hidl_vec<StreamBuffer> tmpRetBuffers(bufReq.numBuffersRequested);
+        for (size_t i = 0; i < bufReq.numBuffersRequested; i++) {
+            hidl_handle buffer_handle;
+            mParent->allocateGraphicBuffer(stream.width, stream.height,
+                    android_convertGralloc1To0Usage(
+                            halStream.producerUsage, halStream.consumerUsage),
+                    halStream.overrideFormat, &buffer_handle);
+
+            tmpRetBuffers[i] = {stream.id, mNextBufferId, buffer_handle, BufferStatus::OK,
+                                nullptr, nullptr};
+            mOutstandingBufferIds[idx].insert(std::make_pair(mNextBufferId++, buffer_handle));
+        }
+        atLeastOneStreamOk = true;
+        bufRets[0].val.buffers(std::move(tmpRetBuffers));
+    }
+
+    if (allStreamOk) {
+        _hidl_cb(BufferRequestStatus::OK, bufRets);
+    } else if (atLeastOneStreamOk) {
+        _hidl_cb(BufferRequestStatus::FAILED_PARTIAL, bufRets);
+    } else {
+        _hidl_cb(BufferRequestStatus::FAILED_UNKNOWN, bufRets);
+    }
+
+    if (!hasOutstandingBuffersLocked()) {
+        l.unlock();
+        mFlushedCondition.notify_one();
+    }
+    return Void();
+}
+
+Return<void> CameraHidlTest::DeviceCb::returnStreamBuffers(
+        const hidl_vec<StreamBuffer>& buffers) {
+    if (!mUseHalBufManager) {
+        ALOGE("%s: Camera does not support HAL buffer management", __FUNCTION__);
+        ADD_FAILURE();
+    }
+
+    std::lock_guard<std::mutex> l(mLock);
+    for (const auto& buf : buffers) {
+        bool found = false;
+        for (size_t idx = 0; idx < mOutstandingBufferIds.size(); idx++) {
+            if (mStreams[idx].id == buf.streamId &&
+                    mOutstandingBufferIds[idx].count(buf.bufferId) == 1) {
+                mOutstandingBufferIds[idx].erase(buf.bufferId);
+                // TODO: check do we need to close/delete native handle or assume we have enough
+                // memory to run till the test finish? since we do not capture much requests (and
+                // most of time one buffer is sufficient)
+                found = true;
+                break;
+            }
+        }
+        if (found) {
+            continue;
+        }
+        ALOGE("%s: unknown buffer ID %" PRIu64, __FUNCTION__, buf.bufferId);
+        ADD_FAILURE();
+    }
+    return Void();
+}
+
 hidl_vec<hidl_string> CameraHidlTest::getCameraDeviceNames(sp<ICameraProvider> provider) {
     std::vector<std::string> cameraDeviceNames;
     Return<void> ret;
@@ -1269,6 +1577,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -1310,6 +1619,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -2050,6 +2360,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -2066,33 +2377,32 @@
                 ASSERT_TRUE(ret.isOk());
 
                 ret = device3_x->getCameraCharacteristics([&](auto status, const auto& chars) {
-                    ALOGI("getCameraCharacteristics returns status:%d", (int)status);
-                    ASSERT_EQ(Status::OK, status);
-                    const camera_metadata_t* metadata = (camera_metadata_t*)chars.data();
-                    size_t expectedSize = chars.size();
-                    int result = validate_camera_metadata_structure(metadata, &expectedSize);
-                    ASSERT_TRUE((result == 0) || (result == CAMERA_METADATA_VALIDATION_SHIFTED));
-                    size_t entryCount = get_camera_metadata_entry_count(metadata);
-                    // TODO: we can do better than 0 here. Need to check how many required
-                    // characteristics keys we've defined.
-                    ASSERT_GT(entryCount, 0u);
-                    ALOGI("getCameraCharacteristics metadata entry count is %zu", entryCount);
-
-                    camera_metadata_ro_entry entry;
-                    int retcode = find_camera_metadata_ro_entry(metadata,
-                            ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL, &entry);
-                    if ((0 == retcode) && (entry.count > 0)) {
-                        uint8_t hardwareLevel = entry.data.u8[0];
-                        ASSERT_TRUE(
-                                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED ||
-                                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL ||
-                                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_3 ||
-                                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL);
-                    } else {
-                        ADD_FAILURE() << "Get camera hardware level failed!";
-                    }
+                    verifyCameraCharacteristics(status, chars);
+                    verifyMonochromeCharacteristics(chars, deviceVersion);
+                    verifyRecommendedConfigs(chars);
+                    verifyLogicalCameraMetadata(name, device3_x, chars, deviceVersion,
+                            cameraDeviceNames);
                 });
                 ASSERT_TRUE(ret.isOk());
+
+                //getPhysicalCameraCharacteristics will fail for publicly
+                //advertised camera IDs.
+                if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_5) {
+                    auto castResult = device::V3_5::ICameraDevice::castFrom(device3_x);
+                    ASSERT_TRUE(castResult.isOk());
+                    ::android::sp<::android::hardware::camera::device::V3_5::ICameraDevice>
+                            device3_5 = castResult;
+                    ASSERT_NE(device3_5, nullptr);
+
+                    std::string version, cameraId;
+                    ASSERT_TRUE(::matchDeviceName(name, mProviderType, &version, &cameraId));
+                    Return<void> ret = device3_5->getPhysicalCameraCharacteristics(cameraId,
+                            [&](auto status, const auto& chars) {
+                        ASSERT_TRUE(Status::ILLEGAL_ARGUMENT == status);
+                        ASSERT_EQ(0, chars.size());
+                    });
+                    ASSERT_TRUE(ret.isOk());
+                }
             }
             break;
             case CAMERA_DEVICE_API_VERSION_1_0: {
@@ -2129,6 +2439,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -2254,6 +2565,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -2318,6 +2630,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -2345,13 +2658,18 @@
                 // cast the 3.3/3.4 interface, and that lower versions can't be cast to it.
                 sp<device::V3_3::ICameraDeviceSession> sessionV3_3;
                 sp<device::V3_4::ICameraDeviceSession> sessionV3_4;
-                castSession(session, deviceVersion, &sessionV3_3, &sessionV3_4);
-                if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_4) {
+                sp<device::V3_5::ICameraDeviceSession> sessionV3_5;
+                castSession(session, deviceVersion, &sessionV3_3, &sessionV3_4, &sessionV3_5);
+                if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_5) {
+                    ASSERT_TRUE(sessionV3_5.get() != nullptr);
+                } else if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_4) {
                     ASSERT_TRUE(sessionV3_4.get() != nullptr);
                 } else if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_3) {
                     ASSERT_TRUE(sessionV3_3.get() != nullptr);
-                } else {
+                } else { //V3_2
                     ASSERT_TRUE(sessionV3_3.get() == nullptr);
+                    ASSERT_TRUE(sessionV3_4.get() == nullptr);
+                    ASSERT_TRUE(sessionV3_5.get() == nullptr);
                 }
                 native_handle_t* raw_handle = native_handle_create(1, 0);
                 raw_handle->data[0] = open(kDumpOutput, O_RDWR);
@@ -2404,6 +2722,7 @@
     for (const auto& name : cameraDeviceNames) {
         int deviceVersion = getCameraDeviceVersion(name, mProviderType);
         switch (deviceVersion) {
+            case CAMERA_DEVICE_API_VERSION_3_5:
             case CAMERA_DEVICE_API_VERSION_3_4:
             case CAMERA_DEVICE_API_VERSION_3_3:
             case CAMERA_DEVICE_API_VERSION_3_2: {
@@ -2506,9 +2825,13 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<device::V3_2::ICameraDevice> cameraDevice;
+        sp<device::V3_5::ICameraDevice> cameraDevice3_5;
         openEmptyDeviceSession(name, mProvider,
-                &session /*out*/, &staticMeta /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
+                &session /*out*/, &staticMeta /*out*/, &cameraDevice /*out*/);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        castDevice(cameraDevice, deviceVersion, &cameraDevice3_5);
 
         outputStreams.clear();
         ASSERT_EQ(Status::OK, getAvailableOutputStreams(staticMeta, outputStreams));
@@ -2519,6 +2842,7 @@
         ASSERT_NE(0u, jpegBufferSize);
 
         int32_t streamId = 0;
+        uint32_t streamConfigCounter = 0;
         for (auto& it : outputStreams) {
             V3_2::Stream stream3_2;
             bool isJpeg = static_cast<PixelFormat>(it.format) == PixelFormat::BLOB;
@@ -2531,11 +2855,22 @@
                              (isJpeg) ? static_cast<V3_2::DataspaceFlags>(Dataspace::V0_JFIF) : 0,
                              StreamRotation::ROTATION_0};
             ::android::hardware::hidl_vec<V3_2::Stream> streams3_2 = {stream3_2};
+            ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
             ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
             ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
             createStreamConfiguration(streams3_2, StreamConfigurationMode::NORMAL_MODE,
-                                      &config3_2, &config3_4, jpegBufferSize);
-            if (session3_4 != nullptr) {
+                                      &config3_2, &config3_4, &config3_5, jpegBufferSize);
+            if (session3_5 != nullptr) {
+                verifyStreamCombination(cameraDevice3_5, config3_4,
+                        /*expectedStatus*/ true);
+                config3_5.streamConfigCounter = streamConfigCounter++;
+                ret = session3_5->configureStreams_3_5(config3_5,
+                        [streamId](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                            ASSERT_EQ(Status::OK, s);
+                            ASSERT_EQ(1u, halConfig.streams.size());
+                            ASSERT_EQ(halConfig.streams[0].v3_3.v3_2.id, streamId);
+                        });
+            } else if (session3_4 != nullptr) {
                 ret = session3_4->configureStreams_3_4(config3_4,
                         [streamId](Status s, device::V3_4::HalStreamConfiguration halConfig) {
                             ASSERT_EQ(Status::OK, s);
@@ -2587,8 +2922,13 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
-        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<device::V3_2::ICameraDevice> cameraDevice;
+        sp<device::V3_5::ICameraDevice> cameraDevice3_5;
+        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/,
+                &cameraDevice /*out*/);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        castDevice(cameraDevice, deviceVersion, &cameraDevice3_5);
 
         outputStreams.clear();
         ASSERT_EQ(Status::OK, getAvailableOutputStreams(staticMeta, outputStreams));
@@ -2607,29 +2947,39 @@
                          GRALLOC1_CONSUMER_USAGE_HWCOMPOSER,
                          0,
                          StreamRotation::ROTATION_0};
+        uint32_t streamConfigCounter = 0;
         ::android::hardware::hidl_vec<V3_2::Stream> streams = {stream3_2};
+        ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
         ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
         ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
         createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                                  &config3_2, &config3_4, jpegBufferSize);
-        if(session3_4 != nullptr) {
-            ret = session3_4->configureStreams_3_4(config3_4,
-                [](Status s, device::V3_4::HalStreamConfiguration) {
-                    ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
+                                  &config3_2, &config3_4, &config3_5, jpegBufferSize);
+        if (session3_5 != nullptr) {
+            verifyStreamCombination(cameraDevice3_5, config3_4, /*expectedStatus*/ false);
+            config3_5.streamConfigCounter = streamConfigCounter++;
+            ret = session3_5->configureStreams_3_5(config3_5,
+                    [](Status s, device::V3_4::HalStreamConfiguration) {
+                        ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
                             (Status::INTERNAL_ERROR == s));
-                });
+                    });
+        } else if (session3_4 != nullptr) {
+            ret = session3_4->configureStreams_3_4(config3_4,
+                    [](Status s, device::V3_4::HalStreamConfiguration) {
+                        ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
+                                (Status::INTERNAL_ERROR == s));
+                    });
         } else if(session3_3 != nullptr) {
             ret = session3_3->configureStreams_3_3(config3_2,
-                [](Status s, device::V3_3::HalStreamConfiguration) {
-                    ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
-                            (Status::INTERNAL_ERROR == s));
-                });
+                    [](Status s, device::V3_3::HalStreamConfiguration) {
+                        ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
+                                (Status::INTERNAL_ERROR == s));
+                    });
         } else {
             ret = session->configureStreams(config3_2,
-                [](Status s, HalStreamConfiguration) {
-                    ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
-                            (Status::INTERNAL_ERROR == s));
-                });
+                    [](Status s, HalStreamConfiguration) {
+                        ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
+                                (Status::INTERNAL_ERROR == s));
+                    });
         }
         ASSERT_TRUE(ret.isOk());
 
@@ -2643,8 +2993,14 @@
                   StreamRotation::ROTATION_0};
         streams[0] = stream3_2;
         createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                &config3_2, &config3_4, jpegBufferSize);
-        if(session3_4 != nullptr) {
+                &config3_2, &config3_4, &config3_5, jpegBufferSize);
+        if (session3_5 != nullptr) {
+            config3_5.streamConfigCounter = streamConfigCounter++;
+            ret = session3_5->configureStreams_3_5(config3_5, [](Status s,
+                        device::V3_4::HalStreamConfiguration) {
+                    ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
+                });
+        } else if(session3_4 != nullptr) {
             ret = session3_4->configureStreams_3_4(config3_4, [](Status s,
                         device::V3_4::HalStreamConfiguration) {
                     ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
@@ -2673,8 +3029,14 @@
                       StreamRotation::ROTATION_0};
             streams[0] = stream3_2;
             createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                    &config3_2, &config3_4, jpegBufferSize);
-            if(session3_4 != nullptr) {
+                    &config3_2, &config3_4, &config3_5, jpegBufferSize);
+            if (session3_5 != nullptr) {
+                config3_5.streamConfigCounter = streamConfigCounter++;
+                ret = session3_5->configureStreams_3_5(config3_5,
+                        [](Status s, device::V3_4::HalStreamConfiguration) {
+                            ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
+                        });
+            } else if(session3_4 != nullptr) {
                 ret = session3_4->configureStreams_3_4(config3_4,
                         [](Status s, device::V3_4::HalStreamConfiguration) {
                             ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
@@ -2702,8 +3064,14 @@
                       static_cast<StreamRotation>(UINT32_MAX)};
             streams[0] = stream3_2;
             createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                    &config3_2, &config3_4, jpegBufferSize);
-            if(session3_4 != nullptr) {
+                    &config3_2, &config3_4, &config3_5, jpegBufferSize);
+            if (session3_5 != nullptr) {
+                config3_5.streamConfigCounter = streamConfigCounter++;
+                ret = session3_5->configureStreams_3_5(config3_5,
+                        [](Status s, device::V3_4::HalStreamConfiguration) {
+                            ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
+                        });
+            } else if(session3_4 != nullptr) {
                 ret = session3_4->configureStreams_3_4(config3_4,
                         [](Status s, device::V3_4::HalStreamConfiguration) {
                             ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
@@ -2750,8 +3118,13 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
-        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<device::V3_2::ICameraDevice> cameraDevice;
+        sp<device::V3_5::ICameraDevice> cameraDevice3_5;
+        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/,
+                &cameraDevice /*out*/);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        castDevice(cameraDevice, deviceVersion, &cameraDevice3_5);
 
         Status rc = isZSLModeAvailable(staticMeta);
         if (Status::METHOD_NOT_SUPPORTED == rc) {
@@ -2769,17 +3142,39 @@
         ASSERT_EQ(Status::OK, getZSLInputOutputMap(staticMeta, inputOutputMap));
         ASSERT_NE(0u, inputOutputMap.size());
 
+        bool supportMonoY8 = false;
+        if (Status::OK == isMonochromeCamera(staticMeta)) {
+            for (auto& it : inputStreams) {
+                if (it.format == static_cast<uint32_t>(PixelFormat::Y8)) {
+                    supportMonoY8 = true;
+                    break;
+                }
+            }
+        }
+
         uint32_t jpegBufferSize = 0;
         ASSERT_EQ(Status::OK, getJpegBufferSize(staticMeta, &jpegBufferSize));
         ASSERT_NE(0u, jpegBufferSize);
 
         int32_t streamId = 0;
+        bool hasPrivToY8 = false, hasY8ToY8 = false, hasY8ToBlob = false;
+        uint32_t streamConfigCounter = 0;
         for (auto& inputIter : inputOutputMap) {
             AvailableStream input;
             ASSERT_EQ(Status::OK, findLargestSize(inputStreams, inputIter.inputFormat,
                     input));
             ASSERT_NE(0u, inputStreams.size());
 
+            if (inputIter.inputFormat == static_cast<uint32_t>(PixelFormat::IMPLEMENTATION_DEFINED)
+                    && inputIter.outputFormat == static_cast<uint32_t>(PixelFormat::Y8)) {
+                hasPrivToY8 = true;
+            } else if (inputIter.inputFormat == static_cast<uint32_t>(PixelFormat::Y8)) {
+                if (inputIter.outputFormat == static_cast<uint32_t>(PixelFormat::BLOB)) {
+                    hasY8ToBlob = true;
+                } else if (inputIter.outputFormat == static_cast<uint32_t>(PixelFormat::Y8)) {
+                    hasY8ToY8 = true;
+                }
+            }
             AvailableStream outputThreshold = {INT32_MAX, INT32_MAX,
                                                inputIter.outputFormat};
             std::vector<AvailableStream> outputStreams;
@@ -2814,11 +3209,21 @@
 
                 ::android::hardware::hidl_vec<V3_2::Stream> streams = {inputStream, zslStream,
                                                                  outputStream};
+                ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
                 ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
                 ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
                 createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                                          &config3_2, &config3_4, jpegBufferSize);
-                if (session3_4 != nullptr) {
+                                          &config3_2, &config3_4, &config3_5, jpegBufferSize);
+                if (session3_5 != nullptr) {
+                    verifyStreamCombination(cameraDevice3_5, config3_4,
+                            /*expectedStatus*/ true);
+                    config3_5.streamConfigCounter = streamConfigCounter++;
+                    ret = session3_5->configureStreams_3_5(config3_5,
+                            [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                                ASSERT_EQ(Status::OK, s);
+                                ASSERT_EQ(3u, halConfig.streams.size());
+                            });
+                } else if (session3_4 != nullptr) {
                     ret = session3_4->configureStreams_3_4(config3_4,
                             [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
                                 ASSERT_EQ(Status::OK, s);
@@ -2841,6 +3246,16 @@
             }
         }
 
+        if (supportMonoY8) {
+            if (Status::OK == isZSLModeAvailable(staticMeta, PRIV_REPROCESS)) {
+                ASSERT_TRUE(hasPrivToY8);
+            }
+            if (Status::OK == isZSLModeAvailable(staticMeta, YUV_REPROCESS)) {
+                ASSERT_TRUE(hasY8ToY8);
+                ASSERT_TRUE(hasY8ToBlob);
+            }
+        }
+
         free_camera_metadata(staticMeta);
         ret = session->close();
         ASSERT_TRUE(ret.isOk());
@@ -2870,9 +3285,14 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
         openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMetaBuffer /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
-        ASSERT_NE(session3_4, nullptr);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_4) {
+            ASSERT_NE(session3_4, nullptr);
+        } else {
+            ASSERT_NE(session3_5, nullptr);
+        }
 
         std::unordered_set<int32_t> availableSessionKeys;
         auto rc = getSupportedKeys(staticMetaBuffer, ANDROID_REQUEST_AVAILABLE_SESSION_KEYS,
@@ -2886,7 +3306,8 @@
         }
 
         android::hardware::camera::common::V1_0::helper::CameraMetadata previewRequestSettings;
-        android::hardware::camera::common::V1_0::helper::CameraMetadata sessionParams;
+        android::hardware::camera::common::V1_0::helper::CameraMetadata sessionParams,
+                modifiedSessionParams;
         constructFilteredSettings(session, availableSessionKeys, RequestTemplate::PREVIEW,
                 &previewRequestSettings, &sessionParams);
         if (sessionParams.isEmpty()) {
@@ -2914,17 +3335,44 @@
         previewStream.bufferSize = 0;
         ::android::hardware::hidl_vec<V3_4::Stream> streams = {previewStream};
         ::android::hardware::camera::device::V3_4::StreamConfiguration config;
+        ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
         config.streams = streams;
         config.operationMode = StreamConfigurationMode::NORMAL_MODE;
-        const camera_metadata_t *sessionParamsBuffer = sessionParams.getAndLock();
-        config.sessionParams.setToExternal(
-                reinterpret_cast<uint8_t *> (const_cast<camera_metadata_t *> (sessionParamsBuffer)),
+        modifiedSessionParams = sessionParams;
+        auto sessionParamsBuffer = sessionParams.release();
+        config.sessionParams.setToExternal(reinterpret_cast<uint8_t *> (sessionParamsBuffer),
                 get_camera_metadata_size(sessionParamsBuffer));
-        ret = session3_4->configureStreams_3_4(config,
-                [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
-                    ASSERT_EQ(Status::OK, s);
-                    ASSERT_EQ(1u, halConfig.streams.size());
-                });
+        config3_5.v3_4 = config;
+        config3_5.streamConfigCounter = 0;
+        if (session3_5 != nullptr) {
+            bool newSessionParamsAvailable = false;
+            for (const auto& it : availableSessionKeys) {
+                if (modifiedSessionParams.exists(it)) {
+                    modifiedSessionParams.erase(it);
+                    newSessionParamsAvailable = true;
+                    break;
+                }
+            }
+            if (newSessionParamsAvailable) {
+                auto modifiedSessionParamsBuffer = modifiedSessionParams.release();
+                verifySessionReconfigurationQuery(session3_5, sessionParamsBuffer,
+                        modifiedSessionParamsBuffer);
+                modifiedSessionParams.acquire(modifiedSessionParamsBuffer);
+            }
+
+            ret = session3_5->configureStreams_3_5(config3_5,
+                    [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                        ASSERT_EQ(Status::OK, s);
+                        ASSERT_EQ(1u, halConfig.streams.size());
+                    });
+        } else {
+            ret = session3_4->configureStreams_3_4(config,
+                    [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                        ASSERT_EQ(Status::OK, s);
+                        ASSERT_EQ(1u, halConfig.streams.size());
+                    });
+        }
+        sessionParams.acquire(sessionParamsBuffer);
         ASSERT_TRUE(ret.isOk());
 
         free_camera_metadata(staticMetaBuffer);
@@ -2959,8 +3407,13 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
-        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<device::V3_2::ICameraDevice> cameraDevice;
+        sp<device::V3_5::ICameraDevice> cameraDevice3_5;
+        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/,
+                &cameraDevice /*out*/);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        castDevice(cameraDevice, deviceVersion, &cameraDevice3_5);
 
         outputBlobStreams.clear();
         ASSERT_EQ(Status::OK,
@@ -2978,6 +3431,7 @@
         ASSERT_NE(0u, jpegBufferSize);
 
         int32_t streamId = 0;
+        uint32_t streamConfigCounter = 0;
         for (auto& blobIter : outputBlobStreams) {
             for (auto& previewIter : outputPreviewStreams) {
                 V3_2::Stream previewStream = {streamId++,
@@ -2998,11 +3452,21 @@
                                      StreamRotation::ROTATION_0};
                 ::android::hardware::hidl_vec<V3_2::Stream> streams = {previewStream,
                                                                  blobStream};
+                ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
                 ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
                 ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
                 createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                                          &config3_2, &config3_4, jpegBufferSize);
-                if (session3_4 != nullptr) {
+                                          &config3_2, &config3_4, &config3_5, jpegBufferSize);
+                if (session3_5 != nullptr) {
+                    verifyStreamCombination(cameraDevice3_5, config3_4,
+                            /*expectedStatus*/ true);
+                    config3_5.streamConfigCounter = streamConfigCounter++;
+                    ret = session3_5->configureStreams_3_5(config3_5,
+                            [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                                ASSERT_EQ(Status::OK, s);
+                                ASSERT_EQ(2u, halConfig.streams.size());
+                            });
+                } else if (session3_4 != nullptr) {
                     ret = session3_4->configureStreams_3_4(config3_4,
                             [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
                                 ASSERT_EQ(Status::OK, s);
@@ -3052,8 +3516,13 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
-        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<device::V3_2::ICameraDevice> cameraDevice;
+        sp<device::V3_5::ICameraDevice> cameraDevice3_5;
+        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/,
+                &cameraDevice /*out*/);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        castDevice(cameraDevice, deviceVersion, &cameraDevice3_5);
 
         Status rc = isConstrainedModeAvailable(staticMeta);
         if (Status::METHOD_NOT_SUPPORTED == rc) {
@@ -3068,6 +3537,7 @@
         ASSERT_EQ(Status::OK, rc);
 
         int32_t streamId = 0;
+        uint32_t streamConfigCounter = 0;
         V3_2::Stream stream = {streamId,
                          StreamType::OUTPUT,
                          static_cast<uint32_t>(hfrStream.width),
@@ -3077,11 +3547,22 @@
                          0,
                          StreamRotation::ROTATION_0};
         ::android::hardware::hidl_vec<V3_2::Stream> streams = {stream};
+        ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
         ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
         ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
         createStreamConfiguration(streams, StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE,
-                                  &config3_2, &config3_4);
-        if (session3_4 != nullptr) {
+                                  &config3_2, &config3_4, &config3_5);
+        if (session3_5 != nullptr) {
+            verifyStreamCombination(cameraDevice3_5, config3_4,
+                    /*expectedStatus*/ true);
+            config3_5.streamConfigCounter = streamConfigCounter++;
+            ret = session3_5->configureStreams_3_5(config3_5,
+                    [streamId](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                        ASSERT_EQ(Status::OK, s);
+                        ASSERT_EQ(1u, halConfig.streams.size());
+                        ASSERT_EQ(halConfig.streams[0].v3_3.v3_2.id, streamId);
+                    });
+        } else if (session3_4 != nullptr) {
             ret = session3_4->configureStreams_3_4(config3_4,
                     [streamId](Status s, device::V3_4::HalStreamConfiguration halConfig) {
                         ASSERT_EQ(Status::OK, s);
@@ -3115,8 +3596,15 @@
                   StreamRotation::ROTATION_0};
         streams[0] = stream;
         createStreamConfiguration(streams, StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE,
-                                  &config3_2, &config3_4);
-        if (session3_4 != nullptr) {
+                                  &config3_2, &config3_4, &config3_5);
+        if (session3_5 != nullptr) {
+            config3_5.streamConfigCounter = streamConfigCounter++;
+            ret = session3_5->configureStreams_3_5(config3_5,
+                    [](Status s, device::V3_4::HalStreamConfiguration) {
+                        ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
+                                (Status::INTERNAL_ERROR == s));
+                    });
+        } else if (session3_4 != nullptr) {
             ret = session3_4->configureStreams_3_4(config3_4,
                     [](Status s, device::V3_4::HalStreamConfiguration) {
                         ASSERT_TRUE((Status::ILLEGAL_ARGUMENT == s) ||
@@ -3147,8 +3635,14 @@
                   StreamRotation::ROTATION_0};
         streams[0] = stream;
         createStreamConfiguration(streams, StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE,
-                                  &config3_2, &config3_4);
-        if (session3_4 != nullptr) {
+                                  &config3_2, &config3_4, &config3_5);
+        if (session3_5 != nullptr) {
+            config3_5.streamConfigCounter = streamConfigCounter++;
+            ret = session3_5->configureStreams_3_5(config3_5,
+                    [](Status s, device::V3_4::HalStreamConfiguration) {
+                        ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
+                    });
+        } else if (session3_4 != nullptr) {
             ret = session3_4->configureStreams_3_4(config3_4,
                     [](Status s, device::V3_4::HalStreamConfiguration) {
                         ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
@@ -3176,8 +3670,14 @@
                   StreamRotation::ROTATION_0};
         streams[0] = stream;
         createStreamConfiguration(streams, StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE,
-                                  &config3_2, &config3_4);
-        if (session3_4 != nullptr) {
+                                  &config3_2, &config3_4, &config3_5);
+        if (session3_5 != nullptr) {
+            config3_5.streamConfigCounter = streamConfigCounter++;
+            ret = session3_5->configureStreams_3_5(config3_5,
+                    [](Status s, device::V3_4::HalStreamConfiguration) {
+                        ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
+                    });
+        } else if (session3_4 != nullptr) {
             ret = session3_4->configureStreams_3_4(config3_4,
                     [](Status s, device::V3_4::HalStreamConfiguration) {
                         ASSERT_EQ(Status::ILLEGAL_ARGUMENT, s);
@@ -3227,8 +3727,13 @@
         sp<ICameraDeviceSession> session;
         sp<device::V3_3::ICameraDeviceSession> session3_3;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
-        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/);
-        castSession(session, deviceVersion, &session3_3, &session3_4);
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<device::V3_2::ICameraDevice> cameraDevice;
+        sp<device::V3_5::ICameraDevice> cameraDevice3_5;
+        openEmptyDeviceSession(name, mProvider, &session /*out*/, &staticMeta /*out*/,
+                &cameraDevice /*out*/);
+        castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+        castDevice(cameraDevice, deviceVersion, &cameraDevice3_5);
 
         outputBlobStreams.clear();
         ASSERT_EQ(Status::OK,
@@ -3247,6 +3752,7 @@
         ASSERT_NE(0u, jpegBufferSize);
 
         int32_t streamId = 0;
+        uint32_t streamConfigCounter = 0;
         for (auto& blobIter : outputBlobStreams) {
             for (auto& videoIter : outputVideoStreams) {
                 V3_2::Stream videoStream = {streamId++,
@@ -3266,11 +3772,21 @@
                                      static_cast<V3_2::DataspaceFlags>(Dataspace::V0_JFIF),
                                      StreamRotation::ROTATION_0};
                 ::android::hardware::hidl_vec<V3_2::Stream> streams = {videoStream, blobStream};
+                ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
                 ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
                 ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
                 createStreamConfiguration(streams, StreamConfigurationMode::NORMAL_MODE,
-                                          &config3_2, &config3_4, jpegBufferSize);
-                if (session3_4 != nullptr) {
+                                          &config3_2, &config3_4, &config3_5, jpegBufferSize);
+                if (session3_5 != nullptr) {
+                    verifyStreamCombination(cameraDevice3_5, config3_4,
+                            /*expectedStatus*/ true);
+                    config3_5.streamConfigCounter = streamConfigCounter++;
+                    ret = session3_5->configureStreams_3_5(config3_5,
+                            [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                                ASSERT_EQ(Status::OK, s);
+                                ASSERT_EQ(2u, halConfig.streams.size());
+                            });
+                } else if (session3_4 != nullptr) {
                     ret = session3_4->configureStreams_3_4(config3_4,
                             [](Status s, device::V3_4::HalStreamConfiguration halConfig) {
                                 ASSERT_EQ(Status::OK, s);
@@ -3321,12 +3837,14 @@
         V3_2::Stream previewStream;
         HalStreamConfiguration halStreamConfig;
         sp<ICameraDeviceSession> session;
+        sp<DeviceCb> cb;
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         configurePreviewStream(name, deviceVersion, mProvider, &previewThreshold, &session /*out*/,
                 &previewStream /*out*/, &halStreamConfig /*out*/,
                 &supportsPartialResults /*out*/,
-                &partialResultCount /*out*/);
+                &partialResultCount /*out*/, &useHalBufManager /*out*/, &cb /*out*/);
 
         std::shared_ptr<ResultMetadataQueue> resultQueue;
         auto resultQueueRet =
@@ -3357,17 +3875,26 @@
         ASSERT_TRUE(ret.isOk());
 
         hidl_handle buffer_handle;
-        allocateGraphicBuffer(previewStream.width, previewStream.height,
-                android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
-                    halStreamConfig.streams[0].consumerUsage),
-                halStreamConfig.streams[0].overrideFormat, &buffer_handle);
-
-        StreamBuffer outputBuffer = {halStreamConfig.streams[0].id,
-                                     bufferId,
-                                     buffer_handle,
-                                     BufferStatus::OK,
-                                     nullptr,
-                                     nullptr};
+        StreamBuffer outputBuffer;
+        if (useHalBufManager) {
+            outputBuffer = {halStreamConfig.streams[0].id,
+                            /*bufferId*/ 0,
+                            buffer_handle,
+                            BufferStatus::OK,
+                            nullptr,
+                            nullptr};
+        } else {
+            allocateGraphicBuffer(previewStream.width, previewStream.height,
+                    android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
+                        halStreamConfig.streams[0].consumerUsage),
+                    halStreamConfig.streams[0].overrideFormat, &buffer_handle);
+            outputBuffer = {halStreamConfig.streams[0].id,
+                            bufferId,
+                            buffer_handle,
+                            BufferStatus::OK,
+                            nullptr,
+                            nullptr};
+        }
         ::android::hardware::hidl_vec<StreamBuffer> outputBuffers = {outputBuffer};
         StreamBuffer emptyInputBuffer = {-1, 0, nullptr, BufferStatus::ERROR, nullptr,
                                          nullptr};
@@ -3447,6 +3974,10 @@
             ASSERT_EQ(previewStream.id, inflightReq.resultOutputBuffers[0].streamId);
         }
 
+        if (useHalBufManager) {
+            verifyBuffersReturned(session, deviceVersion, previewStream.id, cb);
+        }
+
         ret = session->close();
         ASSERT_TRUE(ret.isOk());
     }
@@ -3528,12 +4059,16 @@
 
         V3_4::HalStreamConfiguration halStreamConfig;
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         V3_2::Stream previewStream;
         sp<device::V3_4::ICameraDeviceSession> session3_4;
+        sp<device::V3_5::ICameraDeviceSession> session3_5;
+        sp<DeviceCb> cb;
         configurePreviewStreams3_4(name, deviceVersion, mProvider, &previewThreshold, physicalIds,
-                &session3_4, &previewStream, &halStreamConfig /*out*/,
-                &supportsPartialResults /*out*/, &partialResultCount /*out*/);
+                &session3_4, &session3_5, &previewStream, &halStreamConfig /*out*/,
+                &supportsPartialResults /*out*/, &partialResultCount /*out*/,
+                &useHalBufManager /*out*/, &cb /*out*/);
         ASSERT_NE(session3_4, nullptr);
 
         std::shared_ptr<ResultMetadataQueue> resultQueue;
@@ -3562,14 +4097,19 @@
         size_t k = 0;
         for (const auto& halStream : halStreamConfig.streams) {
             hidl_handle buffer_handle;
-            allocateGraphicBuffer(previewStream.width, previewStream.height,
-                    android_convertGralloc1To0Usage(halStream.v3_3.v3_2.producerUsage,
-                        halStream.v3_3.v3_2.consumerUsage),
-                    halStream.v3_3.v3_2.overrideFormat, &buffer_handle);
-            graphicBuffers.push_back(buffer_handle);
-            outputBuffers[k] = {halStream.v3_3.v3_2.id, bufferId, buffer_handle,
-                BufferStatus::OK, nullptr, nullptr};
-            bufferId++;
+            if (useHalBufManager) {
+                outputBuffers[k] = {halStream.v3_3.v3_2.id, /*bufferId*/0, buffer_handle,
+                    BufferStatus::OK, nullptr, nullptr};
+            } else {
+                allocateGraphicBuffer(previewStream.width, previewStream.height,
+                        android_convertGralloc1To0Usage(halStream.v3_3.v3_2.producerUsage,
+                            halStream.v3_3.v3_2.consumerUsage),
+                        halStream.v3_3.v3_2.overrideFormat, &buffer_handle);
+                graphicBuffers.push_back(buffer_handle);
+                outputBuffers[k] = {halStream.v3_3.v3_2.id, bufferId, buffer_handle,
+                    BufferStatus::OK, nullptr, nullptr};
+                bufferId++;
+            }
             k++;
         }
         hidl_vec<V3_4::PhysicalCameraSetting> camSettings(1);
@@ -3671,6 +4211,15 @@
 
         defaultPreviewSettings.unlock(settingsBuffer);
         filteredSettings.unlock(filteredSettingsBuffer);
+
+        if (useHalBufManager) {
+            hidl_vec<int32_t> streamIds(halStreamConfig.streams.size());
+            for (size_t i = 0; i < streamIds.size(); i++) {
+                streamIds[i] = halStreamConfig.streams[i].v3_3.v3_2.id;
+            }
+            verifyBuffersReturned(session3_4, streamIds, cb);
+        }
+
         ret = session3_4->close();
         ASSERT_TRUE(ret.isOk());
     }
@@ -3719,12 +4268,15 @@
         ASSERT_TRUE(ret.isOk());
 
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         V3_2::Stream previewStream;
         HalStreamConfiguration halStreamConfig;
+        sp<DeviceCb> cb;
         configurePreviewStream(name, deviceVersion, mProvider, &previewThreshold,
                 &session /*out*/, &previewStream /*out*/, &halStreamConfig /*out*/,
-                &supportsPartialResults /*out*/, &partialResultCount /*out*/);
+                &supportsPartialResults /*out*/, &partialResultCount /*out*/,
+                &useHalBufManager /*out*/, &cb /*out*/);
         std::shared_ptr<ResultMetadataQueue> resultQueue;
 
         auto resultQueueRet = session->getCaptureResultMetadataQueue(
@@ -3758,13 +4310,18 @@
             std::unique_lock<std::mutex> l(mLock);
 
             isoValues[i] = ((i % 2) == 0) ? isoRange.data.i32[0] : isoRange.data.i32[1];
-            allocateGraphicBuffer(previewStream.width, previewStream.height,
-                    android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
-                        halStreamConfig.streams[0].consumerUsage),
-                    halStreamConfig.streams[0].overrideFormat, &buffers[i]);
+            if (useHalBufManager) {
+                outputBuffers[i] = {halStreamConfig.streams[0].id, /*bufferId*/0,
+                    nullptr, BufferStatus::OK, nullptr, nullptr};
+            } else {
+                allocateGraphicBuffer(previewStream.width, previewStream.height,
+                        android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
+                            halStreamConfig.streams[0].consumerUsage),
+                        halStreamConfig.streams[0].overrideFormat, &buffers[i]);
+                outputBuffers[i] = {halStreamConfig.streams[0].id, bufferId + i,
+                    buffers[i], BufferStatus::OK, nullptr, nullptr};
+            }
 
-            outputBuffers[i] = {halStreamConfig.streams[0].id, bufferId + i,
-                buffers[i], BufferStatus::OK, nullptr, nullptr};
             requestMeta.append(reinterpret_cast<camera_metadata_t *> (settings.data()));
 
             // Disable all 3A routines
@@ -3817,6 +4374,9 @@
                         std::round(isoValues[i]*isoTol));
         }
 
+        if (useHalBufManager) {
+            verifyBuffersReturned(session, deviceVersion, previewStream.id, cb);
+        }
         ret = session->close();
         ASSERT_TRUE(ret.isOk());
     }
@@ -3846,18 +4406,25 @@
         V3_2::Stream previewStream;
         HalStreamConfiguration halStreamConfig;
         sp<ICameraDeviceSession> session;
+        sp<DeviceCb> cb;
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         configurePreviewStream(name, deviceVersion, mProvider, &previewThreshold, &session /*out*/,
                 &previewStream /*out*/, &halStreamConfig /*out*/,
                 &supportsPartialResults /*out*/,
-                &partialResultCount /*out*/);
+                &partialResultCount /*out*/, &useHalBufManager /*out*/, &cb /*out*/);
 
         hidl_handle buffer_handle;
-        allocateGraphicBuffer(previewStream.width, previewStream.height,
-                android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
-                    halStreamConfig.streams[0].consumerUsage),
-                halStreamConfig.streams[0].overrideFormat, &buffer_handle);
+
+        if (useHalBufManager) {
+            bufferId = 0;
+        } else {
+            allocateGraphicBuffer(previewStream.width, previewStream.height,
+                    android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
+                        halStreamConfig.streams[0].consumerUsage),
+                    halStreamConfig.streams[0].overrideFormat, &buffer_handle);
+        }
 
         StreamBuffer outputBuffer = {halStreamConfig.streams[0].id,
                                      bufferId,
@@ -3913,12 +4480,14 @@
         V3_2::Stream previewStream;
         HalStreamConfiguration halStreamConfig;
         sp<ICameraDeviceSession> session;
+        sp<DeviceCb> cb;
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         configurePreviewStream(name, deviceVersion, mProvider, &previewThreshold, &session /*out*/,
                 &previewStream /*out*/, &halStreamConfig /*out*/,
                 &supportsPartialResults /*out*/,
-                &partialResultCount /*out*/);
+                &partialResultCount /*out*/, &useHalBufManager /*out*/, &cb /*out*/);
 
         RequestTemplate reqTemplate = RequestTemplate::PREVIEW;
         Return<void> ret;
@@ -3977,12 +4546,14 @@
         V3_2::Stream previewStream;
         HalStreamConfiguration halStreamConfig;
         sp<ICameraDeviceSession> session;
+        sp<DeviceCb> cb;
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         configurePreviewStream(name, deviceVersion, mProvider, &previewThreshold, &session /*out*/,
                 &previewStream /*out*/, &halStreamConfig /*out*/,
                 &supportsPartialResults /*out*/,
-                &partialResultCount /*out*/);
+                &partialResultCount /*out*/, &useHalBufManager /*out*/, &cb /*out*/);
 
         std::shared_ptr<ResultMetadataQueue> resultQueue;
         auto resultQueueRet =
@@ -4012,10 +4583,14 @@
         ASSERT_TRUE(ret.isOk());
 
         hidl_handle buffer_handle;
-        allocateGraphicBuffer(previewStream.width, previewStream.height,
-                android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
-                    halStreamConfig.streams[0].consumerUsage),
-                halStreamConfig.streams[0].overrideFormat, &buffer_handle);
+        if (useHalBufManager) {
+            bufferId = 0;
+        } else {
+            allocateGraphicBuffer(previewStream.width, previewStream.height,
+                    android_convertGralloc1To0Usage(halStreamConfig.streams[0].producerUsage,
+                        halStreamConfig.streams[0].consumerUsage),
+                    halStreamConfig.streams[0].overrideFormat, &buffer_handle);
+        }
 
         StreamBuffer outputBuffer = {halStreamConfig.streams[0].id,
                                      bufferId,
@@ -4082,6 +4657,10 @@
             }
         }
 
+        if (useHalBufManager) {
+            verifyBuffersReturned(session, deviceVersion, previewStream.id, cb);
+        }
+
         ret = session->close();
         ASSERT_TRUE(ret.isOk());
     }
@@ -4107,12 +4686,14 @@
         V3_2::Stream previewStream;
         HalStreamConfiguration halStreamConfig;
         sp<ICameraDeviceSession> session;
+        sp<DeviceCb> cb;
         bool supportsPartialResults = false;
+        bool useHalBufManager = false;
         uint32_t partialResultCount = 0;
         configurePreviewStream(name, deviceVersion, mProvider, &previewThreshold, &session /*out*/,
                 &previewStream /*out*/, &halStreamConfig /*out*/,
                 &supportsPartialResults /*out*/,
-                &partialResultCount /*out*/);
+                &partialResultCount /*out*/, &useHalBufManager /*out*/, &cb /*out*/);
 
         Return<Status> returnStatus = session->flush();
         ASSERT_TRUE(returnStatus.isOk());
@@ -4130,6 +4711,13 @@
     }
 }
 
+// Test camera provider@2.5 notify method
+TEST_F(CameraHidlTest, providerDeviceStateNotification) {
+
+    notifyDeviceState(provider::V2_5::DeviceState::BACK_COVERED);
+    notifyDeviceState(provider::V2_5::DeviceState::NORMAL);
+}
+
 // Retrieve all valid output stream resolutions from the camera
 // static characteristics.
 Status CameraHidlTest::getAvailableOutputStreams(camera_metadata_t *staticMeta,
@@ -4187,7 +4775,7 @@
 }
 
 // Check if the camera device has logical multi-camera capability.
-Status CameraHidlTest::isLogicalMultiCamera(camera_metadata_t *staticMeta) {
+Status CameraHidlTest::isLogicalMultiCamera(const camera_metadata_t *staticMeta) {
     Status ret = Status::METHOD_NOT_SUPPORTED;
     if (nullptr == staticMeta) {
         return Status::ILLEGAL_ARGUMENT;
@@ -4211,7 +4799,7 @@
 }
 
 // Generate a list of physical camera ids backing a logical multi-camera.
-Status CameraHidlTest::getPhysicalCameraIds(camera_metadata_t *staticMeta,
+Status CameraHidlTest::getPhysicalCameraIds(const camera_metadata_t *staticMeta,
         std::unordered_set<std::string> *physicalIds) {
     if ((nullptr == staticMeta) || (nullptr == physicalIds)) {
         return Status::ILLEGAL_ARGUMENT;
@@ -4348,7 +4936,17 @@
 
 // Check whether ZSL is available using the static camera
 // characteristics.
-Status CameraHidlTest::isZSLModeAvailable(camera_metadata_t *staticMeta) {
+Status CameraHidlTest::isZSLModeAvailable(const camera_metadata_t *staticMeta) {
+    if (Status::OK == isZSLModeAvailable(staticMeta, PRIV_REPROCESS)) {
+        return Status::OK;
+    } else {
+        return isZSLModeAvailable(staticMeta, YUV_REPROCESS);
+    }
+}
+
+Status CameraHidlTest::isZSLModeAvailable(const camera_metadata_t *staticMeta,
+        ReprocessType reprocType) {
+
     Status ret = Status::METHOD_NOT_SUPPORTED;
     if (nullptr == staticMeta) {
         return Status::ILLEGAL_ARGUMENT;
@@ -4362,10 +4960,34 @@
     }
 
     for (size_t i = 0; i < entry.count; i++) {
-        if ((ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
-                entry.data.u8[i]) ||
-                (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING ==
-                        entry.data.u8[i]) ){
+        if ((reprocType == PRIV_REPROCESS &&
+                ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING == entry.data.u8[i]) ||
+                (reprocType == YUV_REPROCESS &&
+                ANDROID_REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING == entry.data.u8[i])) {
+            ret = Status::OK;
+            break;
+        }
+    }
+
+    return ret;
+}
+
+// Check whether this is a monochrome camera using the static camera characteristics.
+Status CameraHidlTest::isMonochromeCamera(const camera_metadata_t *staticMeta) {
+    Status ret = Status::METHOD_NOT_SUPPORTED;
+    if (nullptr == staticMeta) {
+        return Status::ILLEGAL_ARGUMENT;
+    }
+
+    camera_metadata_ro_entry entry;
+    int rc = find_camera_metadata_ro_entry(staticMeta,
+            ANDROID_REQUEST_AVAILABLE_CAPABILITIES, &entry);
+    if (0 != rc) {
+        return Status::ILLEGAL_ARGUMENT;
+    }
+
+    for (size_t i = 0; i < entry.count; i++) {
+        if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME == entry.data.u8[i]) {
             ret = Status::OK;
             break;
         }
@@ -4438,9 +5060,11 @@
         StreamConfigurationMode configMode,
         ::android::hardware::camera::device::V3_2::StreamConfiguration *config3_2 /*out*/,
         ::android::hardware::camera::device::V3_4::StreamConfiguration *config3_4 /*out*/,
+        ::android::hardware::camera::device::V3_5::StreamConfiguration *config3_5 /*out*/,
         uint32_t jpegBufferSize) {
     ASSERT_NE(nullptr, config3_2);
     ASSERT_NE(nullptr, config3_4);
+    ASSERT_NE(nullptr, config3_5);
 
     ::android::hardware::hidl_vec<V3_4::Stream> streams3_4(streams3_2.size());
     size_t idx = 0;
@@ -4454,7 +5078,9 @@
         }
         streams3_4[idx++] = stream;
     }
-    *config3_4 = {streams3_4, configMode, {}};
+    // Caller is responsible to fill in non-zero config3_5->streamConfigCounter after this returns
+    *config3_5 = {{streams3_4, configMode, {}}, 0};
+    *config3_4 = config3_5->v3_4;
     *config3_2 = {streams3_2, configMode};
 }
 
@@ -4464,15 +5090,22 @@
         const AvailableStream *previewThreshold,
         const std::unordered_set<std::string>& physicalIds,
         sp<device::V3_4::ICameraDeviceSession> *session3_4 /*out*/,
+        sp<device::V3_5::ICameraDeviceSession> *session3_5 /*out*/,
         V3_2::Stream *previewStream /*out*/,
         device::V3_4::HalStreamConfiguration *halStreamConfig /*out*/,
         bool *supportsPartialResults /*out*/,
-        uint32_t *partialResultCount /*out*/) {
+        uint32_t *partialResultCount /*out*/,
+        bool *useHalBufManager /*out*/,
+        sp<DeviceCb> *outCb /*out*/,
+        uint32_t streamConfigCounter) {
     ASSERT_NE(nullptr, session3_4);
+    ASSERT_NE(nullptr, session3_5);
     ASSERT_NE(nullptr, halStreamConfig);
     ASSERT_NE(nullptr, previewStream);
     ASSERT_NE(nullptr, supportsPartialResults);
     ASSERT_NE(nullptr, partialResultCount);
+    ASSERT_NE(nullptr, useHalBufManager);
+    ASSERT_NE(nullptr, outCb);
     ASSERT_FALSE(physicalIds.empty());
 
     std::vector<AvailableStream> outputPreviewStreams;
@@ -4490,7 +5123,25 @@
         });
     ASSERT_TRUE(ret.isOk());
 
-    sp<DeviceCb> cb = new DeviceCb(this);
+    camera_metadata_t *staticMeta;
+    ret = device3_x->getCameraCharacteristics([&] (Status s,
+            CameraMetadata metadata) {
+        ASSERT_EQ(Status::OK, s);
+        staticMeta = clone_camera_metadata(
+                reinterpret_cast<const camera_metadata_t*>(metadata.data()));
+        ASSERT_NE(nullptr, staticMeta);
+    });
+    ASSERT_TRUE(ret.isOk());
+
+    camera_metadata_ro_entry entry;
+    auto status = find_camera_metadata_ro_entry(staticMeta,
+            ANDROID_REQUEST_PARTIAL_RESULT_COUNT, &entry);
+    if ((0 == status) && (entry.count > 0)) {
+        *partialResultCount = entry.data.i32[0];
+        *supportsPartialResults = (*partialResultCount > 1);
+    }
+
+    sp<DeviceCb> cb = new DeviceCb(this, deviceVersion, staticMeta);
     sp<ICameraDeviceSession> session;
     ret = device3_x->open(
         cb,
@@ -4501,27 +5152,18 @@
             session = newSession;
         });
     ASSERT_TRUE(ret.isOk());
+    *outCb = cb;
 
     sp<device::V3_3::ICameraDeviceSession> session3_3;
-    castSession(session, deviceVersion, &session3_3, session3_4);
-    ASSERT_NE(nullptr, session3_4);
+    castSession(session, deviceVersion, &session3_3, session3_4, session3_5);
+    ASSERT_NE(nullptr, (*session3_4).get());
 
-    camera_metadata_t *staticMeta;
-    ret = device3_x->getCameraCharacteristics([&] (Status s,
-            CameraMetadata metadata) {
-        ASSERT_EQ(Status::OK, s);
-        staticMeta = clone_camera_metadata(
-                reinterpret_cast<const camera_metadata_t*>(metadata.data()));
-         ASSERT_NE(nullptr, staticMeta);
-    });
-    ASSERT_TRUE(ret.isOk());
-
-    camera_metadata_ro_entry entry;
-    auto status = find_camera_metadata_ro_entry(staticMeta,
-            ANDROID_REQUEST_PARTIAL_RESULT_COUNT, &entry);
-    if ((0 == status) && (entry.count > 0)) {
-        *partialResultCount = entry.data.i32[0];
-        *supportsPartialResults = (*partialResultCount > 1);
+    *useHalBufManager = false;
+    status = find_camera_metadata_ro_entry(staticMeta,
+            ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION, &entry);
+    if ((0 == status) && (entry.count == 1)) {
+        *useHalBufManager = (entry.data.u8[0] ==
+            ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5);
     }
 
     outputPreviewStreams.clear();
@@ -4544,6 +5186,7 @@
     }
 
     ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
+    ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
     config3_4 = {streams3_4, StreamConfigurationMode::NORMAL_MODE, {}};
     RequestTemplate reqTemplate = RequestTemplate::PREVIEW;
     ret = (*session3_4)->constructDefaultRequestSettings(reqTemplate,
@@ -4553,12 +5196,32 @@
             });
     ASSERT_TRUE(ret.isOk());
 
-    ret = (*session3_4)->configureStreams_3_4(config3_4,
-            [&] (Status s, device::V3_4::HalStreamConfiguration halConfig) {
-            ASSERT_EQ(Status::OK, s);
-            ASSERT_EQ(physicalIds.size(), halConfig.streams.size());
-            *halStreamConfig = halConfig;
-            });
+    if (*session3_5 != nullptr) {
+        config3_5.v3_4 = config3_4;
+        config3_5.streamConfigCounter = streamConfigCounter;
+        ret = (*session3_5)->configureStreams_3_5(config3_5,
+                [&] (Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                    ASSERT_EQ(Status::OK, s);
+                    ASSERT_EQ(physicalIds.size(), halConfig.streams.size());
+                    *halStreamConfig = halConfig;
+                    if (*useHalBufManager) {
+                        hidl_vec<V3_2::Stream> streams(physicalIds.size());
+                        hidl_vec<V3_2::HalStream> halStreams(physicalIds.size());
+                        for (size_t i = 0; i < physicalIds.size(); i++) {
+                            streams[i] = streams3_4[i].v3_2;
+                            halStreams[i] = halConfig.streams[i].v3_3.v3_2;
+                        }
+                        cb->setCurrentStreamConfig(streams, halStreams);
+                    }
+                });
+    } else {
+        ret = (*session3_4)->configureStreams_3_4(config3_4,
+                [&] (Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                ASSERT_EQ(Status::OK, s);
+                ASSERT_EQ(physicalIds.size(), halConfig.streams.size());
+                *halStreamConfig = halConfig;
+                });
+    }
     *previewStream = streams3_4[0].v3_2;
     ASSERT_TRUE(ret.isOk());
 }
@@ -4571,12 +5234,17 @@
         V3_2::Stream *previewStream /*out*/,
         HalStreamConfiguration *halStreamConfig /*out*/,
         bool *supportsPartialResults /*out*/,
-        uint32_t *partialResultCount /*out*/) {
+        uint32_t *partialResultCount /*out*/,
+        bool *useHalBufManager /*out*/,
+        sp<DeviceCb> *outCb /*out*/,
+        uint32_t streamConfigCounter) {
     ASSERT_NE(nullptr, session);
     ASSERT_NE(nullptr, previewStream);
     ASSERT_NE(nullptr, halStreamConfig);
     ASSERT_NE(nullptr, supportsPartialResults);
     ASSERT_NE(nullptr, partialResultCount);
+    ASSERT_NE(nullptr, useHalBufManager);
+    ASSERT_NE(nullptr, outCb);
 
     std::vector<AvailableStream> outputPreviewStreams;
     ::android::sp<ICameraDevice> device3_x;
@@ -4593,21 +5261,6 @@
         });
     ASSERT_TRUE(ret.isOk());
 
-    sp<DeviceCb> cb = new DeviceCb(this);
-    ret = device3_x->open(
-        cb,
-        [&](auto status, const auto& newSession) {
-            ALOGI("device::open returns status:%d", (int)status);
-            ASSERT_EQ(Status::OK, status);
-            ASSERT_NE(newSession, nullptr);
-            *session = newSession;
-        });
-    ASSERT_TRUE(ret.isOk());
-
-    sp<device::V3_3::ICameraDeviceSession> session3_3;
-    sp<device::V3_4::ICameraDeviceSession> session3_4;
-    castSession(*session, deviceVersion, &session3_3, &session3_4);
-
     camera_metadata_t *staticMeta;
     ret = device3_x->getCameraCharacteristics([&] (Status s,
             CameraMetadata metadata) {
@@ -4626,6 +5279,31 @@
         *supportsPartialResults = (*partialResultCount > 1);
     }
 
+    sp<DeviceCb> cb = new DeviceCb(this, deviceVersion, staticMeta);
+    ret = device3_x->open(
+        cb,
+        [&](auto status, const auto& newSession) {
+            ALOGI("device::open returns status:%d", (int)status);
+            ASSERT_EQ(Status::OK, status);
+            ASSERT_NE(newSession, nullptr);
+            *session = newSession;
+        });
+    ASSERT_TRUE(ret.isOk());
+    *outCb = cb;
+
+    sp<device::V3_3::ICameraDeviceSession> session3_3;
+    sp<device::V3_4::ICameraDeviceSession> session3_4;
+    sp<device::V3_5::ICameraDeviceSession> session3_5;
+    castSession(*session, deviceVersion, &session3_3, &session3_4, &session3_5);
+
+    *useHalBufManager = false;
+    status = find_camera_metadata_ro_entry(staticMeta,
+            ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION, &entry);
+    if ((0 == status) && (entry.count == 1)) {
+        *useHalBufManager = (entry.data.u8[0] ==
+            ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5);
+    }
+
     outputPreviewStreams.clear();
     auto rc = getAvailableOutputStreams(staticMeta,
             outputPreviewStreams, previewThreshold);
@@ -4646,9 +5324,33 @@
     ::android::hardware::hidl_vec<V3_2::Stream> streams3_2 = {stream3_2};
     ::android::hardware::camera::device::V3_2::StreamConfiguration config3_2;
     ::android::hardware::camera::device::V3_4::StreamConfiguration config3_4;
+    ::android::hardware::camera::device::V3_5::StreamConfiguration config3_5;
     createStreamConfiguration(streams3_2, StreamConfigurationMode::NORMAL_MODE,
-                              &config3_2, &config3_4, jpegBufferSize);
-    if (session3_4 != nullptr) {
+                              &config3_2, &config3_4, &config3_5, jpegBufferSize);
+    if (session3_5 != nullptr) {
+        RequestTemplate reqTemplate = RequestTemplate::PREVIEW;
+        ret = session3_5->constructDefaultRequestSettings(reqTemplate,
+                                                       [&config3_5](auto status, const auto& req) {
+                                                           ASSERT_EQ(Status::OK, status);
+                                                           config3_5.v3_4.sessionParams = req;
+                                                       });
+        ASSERT_TRUE(ret.isOk());
+        config3_5.streamConfigCounter = streamConfigCounter;
+        ret = session3_5->configureStreams_3_5(config3_5,
+                [&] (Status s, device::V3_4::HalStreamConfiguration halConfig) {
+                    ASSERT_EQ(Status::OK, s);
+                    ASSERT_EQ(1u, halConfig.streams.size());
+                    halStreamConfig->streams.resize(1);
+                    halStreamConfig->streams[0] = halConfig.streams[0].v3_3.v3_2;
+                    if (*useHalBufManager) {
+                        hidl_vec<V3_2::Stream> streams(1);
+                        hidl_vec<V3_2::HalStream> halStreams(1);
+                        streams[0] = stream3_2;
+                        halStreams[0] = halConfig.streams[0].v3_3.v3_2;
+                        cb->setCurrentStreamConfig(streams, halStreams);
+                    }
+                });
+    } else if (session3_4 != nullptr) {
         RequestTemplate reqTemplate = RequestTemplate::PREVIEW;
         ret = session3_4->constructDefaultRequestSettings(reqTemplate,
                                                        [&config3_4](auto status, const auto& req) {
@@ -4687,20 +5389,48 @@
     ASSERT_TRUE(ret.isOk());
 }
 
+void CameraHidlTest::castDevice(const sp<device::V3_2::ICameraDevice> &device,
+        int32_t deviceVersion, sp<device::V3_5::ICameraDevice> *device3_5/*out*/) {
+    ASSERT_NE(nullptr, device3_5);
+    if (deviceVersion == CAMERA_DEVICE_API_VERSION_3_5) {
+        auto castResult = device::V3_5::ICameraDevice::castFrom(device);
+        ASSERT_TRUE(castResult.isOk());
+        *device3_5 = castResult;
+    }
+}
+
+//Cast camera provider to corresponding version if available
+void CameraHidlTest::castProvider(const sp<ICameraProvider> &provider,
+        sp<provider::V2_5::ICameraProvider> *provider2_5 /*out*/) {
+    ASSERT_NE(nullptr, provider2_5);
+    auto castResult = provider::V2_5::ICameraProvider::castFrom(provider);
+    if (castResult.isOk()) {
+        *provider2_5 = castResult;
+    }
+}
+
 //Cast camera device session to corresponding version
 void CameraHidlTest::castSession(const sp<ICameraDeviceSession> &session, int32_t deviceVersion,
         sp<device::V3_3::ICameraDeviceSession> *session3_3 /*out*/,
-        sp<device::V3_4::ICameraDeviceSession> *session3_4 /*out*/) {
+        sp<device::V3_4::ICameraDeviceSession> *session3_4 /*out*/,
+        sp<device::V3_5::ICameraDeviceSession> *session3_5 /*out*/) {
     ASSERT_NE(nullptr, session3_3);
     ASSERT_NE(nullptr, session3_4);
+    ASSERT_NE(nullptr, session3_5);
 
     switch (deviceVersion) {
+        case CAMERA_DEVICE_API_VERSION_3_5: {
+            auto castResult = device::V3_5::ICameraDeviceSession::castFrom(session);
+            ASSERT_TRUE(castResult.isOk());
+            *session3_5 = castResult;
+        }
+        [[fallthrough]];
         case CAMERA_DEVICE_API_VERSION_3_4: {
             auto castResult = device::V3_4::ICameraDeviceSession::castFrom(session);
             ASSERT_TRUE(castResult.isOk());
             *session3_4 = castResult;
-            break;
         }
+        [[fallthrough]];
         case CAMERA_DEVICE_API_VERSION_3_3: {
             auto castResult = device::V3_3::ICameraDeviceSession::castFrom(session);
             ASSERT_TRUE(castResult.isOk());
@@ -4713,11 +5443,380 @@
     }
 }
 
+void CameraHidlTest::verifyStreamCombination(sp<device::V3_5::ICameraDevice> cameraDevice3_5,
+        const ::android::hardware::camera::device::V3_4::StreamConfiguration &config3_4,
+        bool expectedStatus) {
+    if (cameraDevice3_5.get() != nullptr) {
+        auto ret = cameraDevice3_5->isStreamCombinationSupported(config3_4,
+                [expectedStatus] (Status s, bool combStatus) {
+                    ASSERT_TRUE((Status::OK == s) || (Status::METHOD_NOT_SUPPORTED == s));
+                    if (Status::OK == s) {
+                        ASSERT_TRUE(combStatus == expectedStatus);
+                    }
+                });
+        ASSERT_TRUE(ret.isOk());
+    }
+}
+
+// Verify logical camera static metadata
+void CameraHidlTest::verifyLogicalCameraMetadata(const std::string& cameraName,
+        const ::android::sp<::android::hardware::camera::device::V3_2::ICameraDevice>& device,
+        const CameraMetadata &chars, int deviceVersion,
+        const hidl_vec<hidl_string>& deviceNames) {
+    const camera_metadata_t* metadata = (camera_metadata_t*)chars.data();
+    ASSERT_NE(nullptr, metadata);
+
+    Status rc = isLogicalMultiCamera(metadata);
+    ASSERT_TRUE(Status::OK == rc || Status::METHOD_NOT_SUPPORTED == rc);
+    if (Status::METHOD_NOT_SUPPORTED == rc) {
+        return;
+    }
+
+    std::string version, cameraId;
+    ASSERT_TRUE(::matchDeviceName(cameraName, mProviderType, &version, &cameraId));
+    std::unordered_set<std::string> physicalIds;
+    ASSERT_TRUE(Status::OK == getPhysicalCameraIds(metadata, &physicalIds));
+    for (auto physicalId : physicalIds) {
+        ASSERT_NE(physicalId, cameraId);
+        bool isPublicId = false;
+        for (auto& deviceName : deviceNames) {
+            std::string publicVersion, publicId;
+            ASSERT_TRUE(::matchDeviceName(deviceName, mProviderType, &publicVersion, &publicId));
+            if (physicalId == publicId) {
+                isPublicId = true;
+                break;
+            }
+        }
+        if (isPublicId) {
+            continue;
+        }
+
+        ASSERT_TRUE(deviceVersion >= CAMERA_DEVICE_API_VERSION_3_5);
+        auto castResult = device::V3_5::ICameraDevice::castFrom(device);
+        ASSERT_TRUE(castResult.isOk());
+        ::android::sp<::android::hardware::camera::device::V3_5::ICameraDevice> device3_5 =
+                castResult;
+        ASSERT_NE(device3_5, nullptr);
+
+        // Check camera characteristics for hidden camera id
+        Return<void> ret = device3_5->getPhysicalCameraCharacteristics(physicalId,
+                [&](auto status, const auto& chars) {
+            verifyCameraCharacteristics(status, chars);
+            verifyMonochromeCharacteristics(chars, deviceVersion);
+        });
+        ASSERT_TRUE(ret.isOk());
+
+        // Check calling getCameraDeviceInterface_V3_x() on hidden camera id returns
+        // ILLEGAL_ARGUMENT.
+        std::stringstream s;
+        s << "device@" << version << "/" << mProviderType << "/" << physicalId;
+        hidl_string fullPhysicalId(s.str());
+        ret = mProvider->getCameraDeviceInterface_V3_x(fullPhysicalId,
+                [&](auto status, const auto& device3_x) {
+            ASSERT_EQ(Status::ILLEGAL_ARGUMENT, status);
+            ASSERT_EQ(device3_x, nullptr);
+        });
+        ASSERT_TRUE(ret.isOk());
+    }
+
+    // Make sure ANDROID_LOGICAL_MULTI_CAMERA_ACTIVE_PHYSICAL_ID is available in
+    // result keys.
+    if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_5) {
+        camera_metadata_ro_entry entry;
+        int retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_REQUEST_AVAILABLE_RESULT_KEYS, &entry);
+        if ((0 == retcode) && (entry.count > 0)) {
+                ASSERT_NE(std::find(entry.data.i32, entry.data.i32 + entry.count,
+                    static_cast<int32_t>(
+                            CameraMetadataTag::ANDROID_LOGICAL_MULTI_CAMERA_ACTIVE_PHYSICAL_ID)),
+                    entry.data.i32 + entry.count);
+        } else {
+            ADD_FAILURE() << "Get camera availableResultKeys failed!";
+        }
+    }
+}
+
+void CameraHidlTest::verifyCameraCharacteristics(Status status, const CameraMetadata& chars) {
+    ASSERT_EQ(Status::OK, status);
+    const camera_metadata_t* metadata = (camera_metadata_t*)chars.data();
+    size_t expectedSize = chars.size();
+    int result = validate_camera_metadata_structure(metadata, &expectedSize);
+    ASSERT_TRUE((result == 0) || (result == CAMERA_METADATA_VALIDATION_SHIFTED));
+    size_t entryCount = get_camera_metadata_entry_count(metadata);
+    // TODO: we can do better than 0 here. Need to check how many required
+    // characteristics keys we've defined.
+    ASSERT_GT(entryCount, 0u);
+
+    camera_metadata_ro_entry entry;
+    int retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL, &entry);
+    if ((0 == retcode) && (entry.count > 0)) {
+        uint8_t hardwareLevel = entry.data.u8[0];
+        ASSERT_TRUE(
+                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED ||
+                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL ||
+                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_3 ||
+                hardwareLevel == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL);
+    } else {
+        ADD_FAILURE() << "Get camera hardware level failed!";
+    }
+
+    entry.count = 0;
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION, &entry);
+    if ((0 == retcode) || (entry.count > 0)) {
+        ADD_FAILURE() << "ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION "
+            << " per API contract should never be set by Hal!";
+    }
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS, &entry);
+    if ((0 == retcode) || (entry.count > 0)) {
+        ADD_FAILURE() << "ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS"
+            << " per API contract should never be set by Hal!";
+    }
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_MIN_FRAME_DURATIONS, &entry);
+    if ((0 == retcode) || (entry.count > 0)) {
+        ADD_FAILURE() << "ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_MIN_FRAME_DURATIONS"
+            << " per API contract should never be set by Hal!";
+    }
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STALL_DURATIONS, &entry);
+    if ((0 == retcode) || (entry.count > 0)) {
+        ADD_FAILURE() << "ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STALL_DURATIONS"
+            << " per API contract should never be set by Hal!";
+    }
+
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS, &entry);
+    if (0 == retcode || entry.count > 0) {
+        ADD_FAILURE() << "ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS "
+            << " per API contract should never be set by Hal!";
+    }
+
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_HEIC_AVAILABLE_HEIC_MIN_FRAME_DURATIONS, &entry);
+    if (0 == retcode || entry.count > 0) {
+        ADD_FAILURE() << "ANDROID_HEIC_AVAILABLE_HEIC_MIN_FRAME_DURATIONS "
+            << " per API contract should never be set by Hal!";
+    }
+
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_HEIC_AVAILABLE_HEIC_STALL_DURATIONS, &entry);
+    if (0 == retcode || entry.count > 0) {
+        ADD_FAILURE() << "ANDROID_HEIC_AVAILABLE_HEIC_STALL_DURATIONS "
+            << " per API contract should never be set by Hal!";
+    }
+
+    retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_HEIC_INFO_SUPPORTED, &entry);
+    if (0 == retcode && entry.count > 0) {
+        retcode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_HEIC_INFO_MAX_JPEG_APP_SEGMENTS_COUNT, &entry);
+        if (0 == retcode && entry.count > 0) {
+            uint8_t maxJpegAppSegmentsCount = entry.data.u8[0];
+            ASSERT_TRUE(maxJpegAppSegmentsCount >= 1 &&
+                    maxJpegAppSegmentsCount <= 16);
+        } else {
+            ADD_FAILURE() << "Get Heic maxJpegAppSegmentsCount failed!";
+        }
+    }
+}
+
+void CameraHidlTest::verifyMonochromeCharacteristics(const CameraMetadata& chars,
+        int deviceVersion) {
+    const camera_metadata_t* metadata = (camera_metadata_t*)chars.data();
+    Status rc = isMonochromeCamera(metadata);
+    if (Status::METHOD_NOT_SUPPORTED == rc) {
+        return;
+    }
+    ASSERT_EQ(Status::OK, rc);
+
+    camera_metadata_ro_entry entry;
+    // Check capabilities
+    int retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_REQUEST_AVAILABLE_CAPABILITIES, &entry);
+    if ((0 == retcode) && (entry.count > 0)) {
+        ASSERT_EQ(std::find(entry.data.u8, entry.data.u8 + entry.count,
+                ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING),
+                entry.data.u8 + entry.count);
+        if (deviceVersion < CAMERA_DEVICE_API_VERSION_3_5) {
+            ASSERT_EQ(std::find(entry.data.u8, entry.data.u8 + entry.count,
+                    ANDROID_REQUEST_AVAILABLE_CAPABILITIES_RAW),
+                    entry.data.u8 + entry.count);
+        }
+    }
+
+    if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_5) {
+        // Check Cfa
+        retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT, &entry);
+        if ((0 == retcode) && (entry.count == 1)) {
+            ASSERT_TRUE(entry.data.i32[0] == static_cast<int32_t>(
+                    CameraMetadataEnumAndroidSensorInfoColorFilterArrangement::ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_MONO)
+                    || entry.data.i32[0] == static_cast<int32_t>(
+                    CameraMetadataEnumAndroidSensorInfoColorFilterArrangement::ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_NIR));
+        }
+
+        // Check availableRequestKeys
+        retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS, &entry);
+        if ((0 == retcode) && (entry.count > 0)) {
+            for (size_t i = 0; i < entry.count; i++) {
+                ASSERT_NE(entry.data.i32[i], ANDROID_COLOR_CORRECTION_MODE);
+                ASSERT_NE(entry.data.i32[i], ANDROID_COLOR_CORRECTION_TRANSFORM);
+                ASSERT_NE(entry.data.i32[i], ANDROID_COLOR_CORRECTION_GAINS);
+            }
+        } else {
+            ADD_FAILURE() << "Get camera availableRequestKeys failed!";
+        }
+
+        // Check availableResultKeys
+        retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_REQUEST_AVAILABLE_RESULT_KEYS, &entry);
+        if ((0 == retcode) && (entry.count > 0)) {
+            for (size_t i = 0; i < entry.count; i++) {
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_GREEN_SPLIT);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_NEUTRAL_COLOR_POINT);
+                ASSERT_NE(entry.data.i32[i], ANDROID_COLOR_CORRECTION_MODE);
+                ASSERT_NE(entry.data.i32[i], ANDROID_COLOR_CORRECTION_TRANSFORM);
+                ASSERT_NE(entry.data.i32[i], ANDROID_COLOR_CORRECTION_GAINS);
+            }
+        } else {
+            ADD_FAILURE() << "Get camera availableResultKeys failed!";
+        }
+
+        // Check availableCharacteristicKeys
+        retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS, &entry);
+        if ((0 == retcode) && (entry.count > 0)) {
+            for (size_t i = 0; i < entry.count; i++) {
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_REFERENCE_ILLUMINANT1);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_REFERENCE_ILLUMINANT2);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_CALIBRATION_TRANSFORM1);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_CALIBRATION_TRANSFORM2);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_COLOR_TRANSFORM1);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_COLOR_TRANSFORM2);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_FORWARD_MATRIX1);
+                ASSERT_NE(entry.data.i32[i], ANDROID_SENSOR_FORWARD_MATRIX2);
+            }
+        } else {
+            ADD_FAILURE() << "Get camera availableResultKeys failed!";
+        }
+
+        // Check blackLevelPattern
+        retcode = find_camera_metadata_ro_entry(metadata,
+                ANDROID_SENSOR_BLACK_LEVEL_PATTERN, &entry);
+        if ((0 == retcode) && (entry.count > 0)) {
+            ASSERT_EQ(entry.count, 4);
+            for (size_t i = 1; i < entry.count; i++) {
+                ASSERT_EQ(entry.data.i32[i], entry.data.i32[0]);
+            }
+        }
+    }
+}
+
+void CameraHidlTest::verifyMonochromeCameraResult(
+        const ::android::hardware::camera::common::V1_0::helper::CameraMetadata& metadata) {
+    camera_metadata_ro_entry entry;
+
+    // Check tags that are not applicable for monochrome camera
+    ASSERT_FALSE(metadata.exists(ANDROID_SENSOR_GREEN_SPLIT));
+    ASSERT_FALSE(metadata.exists(ANDROID_SENSOR_NEUTRAL_COLOR_POINT));
+    ASSERT_FALSE(metadata.exists(ANDROID_COLOR_CORRECTION_MODE));
+    ASSERT_FALSE(metadata.exists(ANDROID_COLOR_CORRECTION_TRANSFORM));
+    ASSERT_FALSE(metadata.exists(ANDROID_COLOR_CORRECTION_GAINS));
+
+    // Check dynamicBlackLevel
+    entry = metadata.find(ANDROID_SENSOR_DYNAMIC_BLACK_LEVEL);
+    if (entry.count > 0) {
+        ASSERT_EQ(entry.count, 4);
+        for (size_t i = 1; i < entry.count; i++) {
+            ASSERT_FLOAT_EQ(entry.data.f[i], entry.data.f[0]);
+        }
+    }
+
+    // Check noiseProfile
+    entry = metadata.find(ANDROID_SENSOR_NOISE_PROFILE);
+    if (entry.count > 0) {
+        ASSERT_EQ(entry.count, 2);
+    }
+
+    // Check lensShadingMap
+    entry = metadata.find(ANDROID_STATISTICS_LENS_SHADING_MAP);
+    if (entry.count > 0) {
+        ASSERT_EQ(entry.count % 4, 0);
+        for (size_t i = 0; i < entry.count/4; i++) {
+            ASSERT_FLOAT_EQ(entry.data.f[i*4+1], entry.data.f[i*4]);
+            ASSERT_FLOAT_EQ(entry.data.f[i*4+2], entry.data.f[i*4]);
+            ASSERT_FLOAT_EQ(entry.data.f[i*4+3], entry.data.f[i*4]);
+        }
+    }
+
+    // Check tonemapCurve
+    camera_metadata_ro_entry curveRed = metadata.find(ANDROID_TONEMAP_CURVE_RED);
+    camera_metadata_ro_entry curveGreen = metadata.find(ANDROID_TONEMAP_CURVE_GREEN);
+    camera_metadata_ro_entry curveBlue = metadata.find(ANDROID_TONEMAP_CURVE_BLUE);
+    if (curveRed.count > 0 && curveGreen.count > 0 && curveBlue.count > 0) {
+        ASSERT_EQ(curveRed.count, curveGreen.count);
+        ASSERT_EQ(curveRed.count, curveBlue.count);
+        for (size_t i = 0; i < curveRed.count; i++) {
+            ASSERT_FLOAT_EQ(curveGreen.data.f[i], curveRed.data.f[i]);
+            ASSERT_FLOAT_EQ(curveBlue.data.f[i], curveRed.data.f[i]);
+        }
+    }
+}
+
+void CameraHidlTest::verifyBuffersReturned(
+        sp<device::V3_2::ICameraDeviceSession> session,
+        int deviceVersion, int32_t streamId,
+        sp<DeviceCb> cb, uint32_t streamConfigCounter) {
+    sp<device::V3_3::ICameraDeviceSession> session3_3;
+    sp<device::V3_4::ICameraDeviceSession> session3_4;
+    sp<device::V3_5::ICameraDeviceSession> session3_5;
+    castSession(session, deviceVersion, &session3_3, &session3_4, &session3_5);
+    ASSERT_NE(nullptr, session3_5.get());
+
+    hidl_vec<int32_t> streamIds(1);
+    streamIds[0] = streamId;
+    session3_5->signalStreamFlush(streamIds, /*streamConfigCounter*/streamConfigCounter);
+    cb->waitForBuffersReturned();
+}
+
+void CameraHidlTest::verifyBuffersReturned(
+        sp<device::V3_4::ICameraDeviceSession> session3_4,
+        hidl_vec<int32_t> streamIds, sp<DeviceCb> cb, uint32_t streamConfigCounter) {
+    auto castResult = device::V3_5::ICameraDeviceSession::castFrom(session3_4);
+    ASSERT_TRUE(castResult.isOk());
+    sp<device::V3_5::ICameraDeviceSession> session3_5 = castResult;
+    ASSERT_NE(nullptr, session3_5.get());
+
+    session3_5->signalStreamFlush(streamIds, /*streamConfigCounter*/streamConfigCounter);
+    cb->waitForBuffersReturned();
+}
+
+void CameraHidlTest::verifyLogicalCameraResult(const camera_metadata_t* staticMetadata,
+        const ::android::hardware::camera::common::V1_0::helper::CameraMetadata& resultMetadata) {
+    std::unordered_set<std::string> physicalIds;
+    Status rc = getPhysicalCameraIds(staticMetadata, &physicalIds);
+    ASSERT_TRUE(Status::OK == rc);
+    ASSERT_TRUE(physicalIds.size() > 1);
+
+    camera_metadata_ro_entry entry;
+    // Check mainPhysicalId
+    entry = resultMetadata.find(ANDROID_LOGICAL_MULTI_CAMERA_ACTIVE_PHYSICAL_ID);
+    if (entry.count > 0) {
+        std::string mainPhysicalId(reinterpret_cast<const char *>(entry.data.u8));
+        ASSERT_NE(physicalIds.find(mainPhysicalId), physicalIds.end());
+    } else {
+        ADD_FAILURE() << "Get LOGICAL_MULTI_CAMERA_ACTIVE_PHYSICAL_ID failed!";
+    }
+}
+
 // Open a device session with empty callbacks and return static metadata.
-void CameraHidlTest::openEmptyDeviceSession(const std::string &name,
-        sp<ICameraProvider> provider,
-        sp<ICameraDeviceSession> *session /*out*/,
-        camera_metadata_t **staticMeta /*out*/) {
+void CameraHidlTest::openEmptyDeviceSession(const std::string &name, sp<ICameraProvider> provider,
+        sp<ICameraDeviceSession> *session /*out*/, camera_metadata_t **staticMeta /*out*/,
+        ::android::sp<ICameraDevice> *cameraDevice /*out*/) {
     ASSERT_NE(nullptr, session);
     ASSERT_NE(nullptr, staticMeta);
 
@@ -4734,6 +5833,9 @@
             device3_x = device;
         });
     ASSERT_TRUE(ret.isOk());
+    if (cameraDevice != nullptr) {
+        *cameraDevice = device3_x;
+    }
 
     sp<EmptyDeviceCb> cb = new EmptyDeviceCb();
     ret = device3_x->open(cb, [&](auto status, const auto& newSession) {
@@ -4754,6 +5856,13 @@
     ASSERT_TRUE(ret.isOk());
 }
 
+void CameraHidlTest::notifyDeviceState(provider::V2_5::DeviceState newState) {
+    if (mProvider2_5.get() == nullptr) return;
+
+    mProvider2_5->notifyDeviceStateChange(
+            static_cast<hidl_bitfield<provider::V2_5::DeviceState>>(newState));
+}
+
 // Open a particular camera device.
 void CameraHidlTest::openCameraDevice(const std::string &name,
         sp<ICameraProvider> provider,
@@ -4918,6 +6027,123 @@
     ASSERT_TRUE(ret.isOk());
 }
 
+void CameraHidlTest::verifyRecommendedConfigs(const CameraMetadata& chars) {
+    size_t CONFIG_ENTRY_SIZE = 5;
+    size_t CONFIG_ENTRY_TYPE_OFFSET = 3;
+    size_t CONFIG_ENTRY_BITFIELD_OFFSET = 4;
+    uint32_t maxPublicUsecase =
+            ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_PUBLIC_END;
+    uint32_t vendorUsecaseStart =
+            ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS_VENDOR_START;
+    uint32_t usecaseMask = (1 << vendorUsecaseStart) - 1;
+    usecaseMask &= ~((1 << maxPublicUsecase) - 1);
+
+    const camera_metadata_t* metadata = reinterpret_cast<const camera_metadata_t*> (chars.data());
+
+    camera_metadata_ro_entry recommendedConfigsEntry, recommendedDepthConfigsEntry, ioMapEntry;
+    recommendedConfigsEntry.count = recommendedDepthConfigsEntry.count = ioMapEntry.count = 0;
+    int retCode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS, &recommendedConfigsEntry);
+    int depthRetCode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_DEPTH_AVAILABLE_RECOMMENDED_DEPTH_STREAM_CONFIGURATIONS,
+            &recommendedDepthConfigsEntry);
+    int ioRetCode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_SCALER_AVAILABLE_RECOMMENDED_INPUT_OUTPUT_FORMATS_MAP, &ioMapEntry);
+    if ((0 != retCode) && (0 != depthRetCode)) {
+        //In case both regular and depth recommended configurations are absent,
+        //I/O should be absent as well.
+        ASSERT_NE(ioRetCode, 0);
+        return;
+    }
+
+    camera_metadata_ro_entry availableKeysEntry;
+    retCode = find_camera_metadata_ro_entry(metadata,
+            ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS, &availableKeysEntry);
+    ASSERT_TRUE((0 == retCode) && (availableKeysEntry.count > 0));
+    std::vector<int32_t> availableKeys;
+    availableKeys.reserve(availableKeysEntry.count);
+    availableKeys.insert(availableKeys.end(), availableKeysEntry.data.i32,
+            availableKeysEntry.data.i32 + availableKeysEntry.count);
+
+    if (recommendedConfigsEntry.count > 0) {
+        ASSERT_NE(std::find(availableKeys.begin(), availableKeys.end(),
+                    ANDROID_SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS),
+                availableKeys.end());
+        ASSERT_EQ((recommendedConfigsEntry.count % CONFIG_ENTRY_SIZE), 0);
+        for (size_t i = 0; i < recommendedConfigsEntry.count; i += CONFIG_ENTRY_SIZE) {
+            int32_t entryType =
+                recommendedConfigsEntry.data.i32[i + CONFIG_ENTRY_TYPE_OFFSET];
+            uint32_t bitfield =
+                recommendedConfigsEntry.data.i32[i + CONFIG_ENTRY_BITFIELD_OFFSET];
+            ASSERT_TRUE((entryType ==
+                     ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT) ||
+                    (entryType ==
+                     ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT));
+            ASSERT_TRUE((bitfield & usecaseMask) == 0);
+        }
+    }
+
+    if (recommendedDepthConfigsEntry.count > 0) {
+        ASSERT_NE(std::find(availableKeys.begin(), availableKeys.end(),
+                    ANDROID_DEPTH_AVAILABLE_RECOMMENDED_DEPTH_STREAM_CONFIGURATIONS),
+                availableKeys.end());
+        ASSERT_EQ((recommendedDepthConfigsEntry.count % CONFIG_ENTRY_SIZE), 0);
+        for (size_t i = 0; i < recommendedDepthConfigsEntry.count; i += CONFIG_ENTRY_SIZE) {
+            int32_t entryType =
+                recommendedDepthConfigsEntry.data.i32[i + CONFIG_ENTRY_TYPE_OFFSET];
+            uint32_t bitfield =
+                recommendedDepthConfigsEntry.data.i32[i + CONFIG_ENTRY_BITFIELD_OFFSET];
+            ASSERT_TRUE((entryType ==
+                     ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT) ||
+                    (entryType ==
+                     ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT));
+            ASSERT_TRUE((bitfield & usecaseMask) == 0);
+        }
+
+        if (recommendedConfigsEntry.count == 0) {
+            //In case regular recommended configurations are absent but suggested depth
+            //configurations are present, I/O should be absent.
+            ASSERT_NE(ioRetCode, 0);
+        }
+    }
+
+    if ((ioRetCode == 0) && (ioMapEntry.count > 0)) {
+        ASSERT_NE(std::find(availableKeys.begin(), availableKeys.end(),
+                    ANDROID_SCALER_AVAILABLE_RECOMMENDED_INPUT_OUTPUT_FORMATS_MAP),
+                availableKeys.end());
+        ASSERT_EQ(isZSLModeAvailable(metadata), Status::OK);
+    }
+}
+
+void CameraHidlTest::verifySessionReconfigurationQuery(
+        sp<device::V3_5::ICameraDeviceSession> session3_5, camera_metadata* oldSessionParams,
+        camera_metadata* newSessionParams) {
+    ASSERT_NE(nullptr, session3_5.get());
+    ASSERT_NE(nullptr, oldSessionParams);
+    ASSERT_NE(nullptr, newSessionParams);
+
+    android::hardware::hidl_vec<uint8_t> oldParams, newParams;
+    oldParams.setToExternal(reinterpret_cast<uint8_t*>(oldSessionParams),
+            get_camera_metadata_size(oldSessionParams));
+    newParams.setToExternal(reinterpret_cast<uint8_t*>(newSessionParams),
+            get_camera_metadata_size(newSessionParams));
+    android::hardware::camera::common::V1_0::Status callStatus;
+    auto hidlCb = [&callStatus] (android::hardware::camera::common::V1_0::Status s,
+            bool /*requiredFlag*/) {
+        callStatus = s;
+    };
+    auto ret = session3_5->isReconfigurationRequired(oldParams, newParams, hidlCb);
+    ASSERT_TRUE(ret.isOk());
+    switch (callStatus) {
+        case android::hardware::camera::common::V1_0::Status::OK:
+        case android::hardware::camera::common::V1_0::Status::METHOD_NOT_SUPPORTED:
+            break;
+        case android::hardware::camera::common::V1_0::Status::INTERNAL_ERROR:
+        default:
+            ADD_FAILURE() << "Query calllback failed";
+    }
+}
+
 int main(int argc, char **argv) {
   ::testing::AddGlobalTestEnvironment(CameraHidlEnvironment::Instance());
   ::testing::InitGoogleTest(&argc, argv);
diff --git a/camera/provider/2.5/Android.bp b/camera/provider/2.5/Android.bp
new file mode 100644
index 0000000..3de010a
--- /dev/null
+++ b/camera/provider/2.5/Android.bp
@@ -0,0 +1,25 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.camera.provider@2.5",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ICameraProvider.hal",
+    ],
+    interfaces: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.provider@2.4",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "DeviceState",
+    ],
+    gen_java: false,
+}
+
diff --git a/camera/provider/2.5/ICameraProvider.hal b/camera/provider/2.5/ICameraProvider.hal
new file mode 100644
index 0000000..b4cda6a
--- /dev/null
+++ b/camera/provider/2.5/ICameraProvider.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.provider@2.5;
+
+import android.hardware.camera.common@1.0::Status;
+import android.hardware.camera.provider@2.4::ICameraProvider;
+
+/**
+ * Camera provider HAL
+ *
+ * Version 2.5 adds support for the notifyDeviceStateChange method
+ */
+interface ICameraProvider extends @2.4::ICameraProvider {
+
+    /**
+     * notifyDeviceStateChange:
+     *
+     * Notify the HAL provider that the state of the overall device has
+     * changed in some way that the HAL may want to know about.
+     *
+     * For example, a physical shutter may have been uncovered or covered,
+     * or a camera may have been covered or uncovered by an add-on keyboard
+     * or other accessory.
+     *
+     * The state is a bitfield of potential states, and some physical configurations
+     * could plausibly correspond to multiple different combinations of state bits.
+     * The HAL must ignore any state bits it is not actively using to determine
+     * the appropriate camera configuration.
+     *
+     * For example, on some devices the FOLDED state could mean that
+     * backward-facing cameras are covered by the fold, so FOLDED by itself implies
+     * BACK_COVERED. But other devices may support folding but not cover any cameras
+     * when folded, so for those FOLDED would not imply any of the other flags.
+     * Since these relationships are very device-specific, it is difficult to specify
+     * a comprehensive policy.  But as a recommendation, it is suggested that if a flag
+     * necessarily implies other flags are set as well, then those flags should be set.
+     * So even though FOLDED would be enough to infer BACK_COVERED on some devices, the
+     * BACK_COVERED flag should also be set for clarity.
+     *
+     * This method may be invoked by the HAL client at any time. It must not
+     * cause any active camera device sessions to be closed, but may dynamically
+     * change which physical camera a logical multi-camera is using for its
+     * active and future output.
+     *
+     * The method must be invoked by the HAL client at least once before the
+     * client calls ICameraDevice::open on any camera device interfaces listed
+     * by this provider, to establish the initial device state.
+     *
+     * @param newState
+     *    The new state of the device.
+     */
+    notifyDeviceStateChange(bitfield<DeviceState> newState);
+
+};
diff --git a/camera/provider/2.5/default/Android.bp b/camera/provider/2.5/default/Android.bp
new file mode 100644
index 0000000..cd1caeb
--- /dev/null
+++ b/camera/provider/2.5/default/Android.bp
@@ -0,0 +1,187 @@
+cc_library_shared {
+    name: "android.hardware.camera.provider@2.5-legacy",
+    proprietary: true,
+    srcs: ["LegacyCameraProviderImpl_2_5.cpp"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.provider@2.4-legacy",
+        "android.hardware.camera.provider@2.5",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "camera.device@1.0-impl",
+        "camera.device@3.2-impl",
+        "camera.device@3.3-impl",
+        "camera.device@3.4-impl",
+        "camera.device@3.5-impl",
+        "libcamera_metadata",
+        "libcutils",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    header_libs: [
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-impl_headers",
+    ],
+    export_include_dirs: ["."],
+}
+
+cc_library_shared {
+    name: "android.hardware.camera.provider@2.5-external",
+    proprietary: true,
+    srcs: ["ExternalCameraProviderImpl_2_5.cpp"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.provider@2.4-external",
+        "android.hardware.camera.provider@2.5",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "camera.device@3.3-impl",
+        "camera.device@3.4-external-impl",
+        "camera.device@3.4-impl",
+        "camera.device@3.5-external-impl",
+        "camera.device@3.5-impl",
+        "libcamera_metadata",
+        "libcutils",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libtinyxml2",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    header_libs: [
+        "camera.device@3.4-external-impl_headers",
+        "camera.device@3.5-external-impl_headers"
+    ],
+    export_include_dirs: ["."],
+}
+
+cc_defaults {
+    name: "camera_service_2_5_defaults",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    relative_install_path: "hw",
+    srcs: ["service.cpp"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.provider@2.4-legacy",
+        "android.hardware.camera.provider@2.5",
+        "android.hardware.camera.provider@2.5-legacy",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libbinder",
+        "libcamera_metadata",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    header_libs: [
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-impl_headers"
+    ],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.5-service",
+    defaults: ["camera_service_2_5_defaults"],
+    compile_multilib: "32",
+    init_rc: ["android.hardware.camera.provider@2.5-service.rc"],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.5-service_64",
+    defaults: ["camera_service_2_5_defaults"],
+    compile_multilib: "64",
+    init_rc: ["android.hardware.camera.provider@2.5-service_64.rc"],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.5-service-lazy",
+    overrides: ["android.hardware.camera.provider@2.5-service"],
+    defaults: ["camera_service_2_5_defaults"],
+    compile_multilib: "32",
+    init_rc: ["android.hardware.camera.provider@2.5-service-lazy.rc"],
+    cflags: ["-DLAZY_SERVICE"],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.5-service-lazy_64",
+    overrides: ["android.hardware.camera.provider@2.5-service_64"],
+    defaults: ["camera_service_2_5_defaults"],
+    compile_multilib: "64",
+    init_rc: ["android.hardware.camera.provider@2.5-service-lazy_64.rc"],
+    cflags: ["-DLAZY_SERVICE"],
+}
+
+cc_binary {
+    name: "android.hardware.camera.provider@2.5-external-service",
+    defaults: ["hidl_defaults"],
+    proprietary: true,
+    relative_install_path: "hw",
+    srcs: ["external-service.cpp"],
+    compile_multilib: "32",
+    init_rc: ["android.hardware.camera.provider@2.5-external-service.rc"],
+    shared_libs: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.provider@2.4-external",
+        "android.hardware.camera.provider@2.5",
+        "android.hardware.camera.provider@2.5-external",
+        "android.hardware.graphics.mapper@2.0",
+        "libbinder",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libtinyxml2",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.camera.common@1.0-helper",
+    ],
+    header_libs: [
+        "camera.device@3.4-external-impl_headers",
+        "camera.device@3.4-impl_headers",
+        "camera.device@3.5-external-impl_headers",
+        "camera.device@3.5-impl_headers",
+    ],
+}
diff --git a/camera/provider/2.5/default/CameraProvider_2_5.h b/camera/provider/2.5/default/CameraProvider_2_5.h
new file mode 100644
index 0000000..d0f1dda
--- /dev/null
+++ b/camera/provider/2.5/default/CameraProvider_2_5.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_CAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_CAMERAPROVIDER_H
+
+#include <android/hardware/camera/provider/2.5/ICameraProvider.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_5 {
+namespace implementation {
+
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::provider::V2_5::ICameraProvider;
+using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
+using ::android::hardware::Return;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+
+// Default recommended RPC thread count for camera provider implementations
+const int HWBINDER_THREAD_COUNT = 6;
+
+template<typename IMPL>
+struct CameraProvider : public ICameraProvider {
+    CameraProvider() : impl() {}
+    ~CameraProvider() {}
+
+    // Caller must use this method to check if CameraProvider ctor failed
+    bool isInitFailed() { return impl.isInitFailed(); }
+
+    // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
+    Return<Status> setCallback(const sp<ICameraProviderCallback>& callback) override {
+        return impl.setCallback(callback);
+    }
+
+    Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override {
+        return impl.getVendorTags(_hidl_cb);
+    }
+
+    Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override {
+        return impl.getCameraIdList(_hidl_cb);
+    }
+
+    Return<void> isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) override {
+        return impl.isSetTorchModeSupported(_hidl_cb);
+    }
+
+    Return<void> getCameraDeviceInterface_V1_x(
+            const hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V1_x_cb _hidl_cb) override {
+        return impl.getCameraDeviceInterface_V1_x(cameraDeviceName, _hidl_cb);
+    }
+
+    Return<void> getCameraDeviceInterface_V3_x(
+            const hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V3_x_cb _hidl_cb) override {
+        return impl.getCameraDeviceInterface_V3_x(cameraDeviceName, _hidl_cb);
+    }
+
+    // Methods from ::android::hardware::camera::provider::V2_5::ICameraProvider follow.
+    Return<void> notifyDeviceStateChange(hardware::hidl_bitfield<DeviceState> newState) override {
+        return impl.notifyDeviceStateChange(newState);
+    }
+
+private:
+    IMPL impl;
+};
+
+}  // namespace implementation
+}  // namespace V2_5
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_CAMERAPROVIDER_H
diff --git a/camera/provider/2.5/default/ExternalCameraProviderImpl_2_5.cpp b/camera/provider/2.5/default/ExternalCameraProviderImpl_2_5.cpp
new file mode 100644
index 0000000..87851cd
--- /dev/null
+++ b/camera/provider/2.5/default/ExternalCameraProviderImpl_2_5.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CamPrvdr@2.5-external"
+//#define LOG_NDEBUG 0
+#include <log/log.h>
+
+#include "ExternalCameraProviderImpl_2_5.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_5 {
+namespace implementation {
+
+ExternalCameraProviderImpl_2_5::ExternalCameraProviderImpl_2_5() :
+        ExternalCameraProviderImpl_2_4() {
+}
+
+ExternalCameraProviderImpl_2_5::~ExternalCameraProviderImpl_2_5() {
+}
+
+Return<void> ExternalCameraProviderImpl_2_5::notifyDeviceStateChange(
+        hidl_bitfield<DeviceState> /*newState*/) {
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V2_5
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/provider/2.5/default/ExternalCameraProviderImpl_2_5.h b/camera/provider/2.5/default/ExternalCameraProviderImpl_2_5.h
new file mode 100644
index 0000000..eeaa7cc
--- /dev/null
+++ b/camera/provider/2.5/default/ExternalCameraProviderImpl_2_5.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_EXTCAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_EXTCAMERAPROVIDER_H
+
+#include <ExternalCameraProviderImpl_2_4.h>
+
+#include <android/hardware/camera/provider/2.5/ICameraProvider.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_5 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::provider;
+
+using ::android::hardware::camera::common::V1_0::CameraDeviceStatus;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::VendorTagSection;
+using ::android::hardware::camera::external::common::ExternalCameraConfig;
+using ::android::hardware::camera::provider::V2_5::ICameraProvider;
+using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_bitfield;
+
+struct ExternalCameraProviderImpl_2_5 :
+        public V2_4::implementation::ExternalCameraProviderImpl_2_4 {
+    ExternalCameraProviderImpl_2_5();
+    ~ExternalCameraProviderImpl_2_5();
+
+    // Methods from ::android::hardware::camera::provider::V2_5::ICameraProvider follow.
+    Return<void> notifyDeviceStateChange(hidl_bitfield<DeviceState> newState);
+private:
+};
+
+}  // namespace implementation
+}  // namespace V2_5
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_EXTCAMERAPROVIDER_H
diff --git a/camera/provider/2.5/default/LegacyCameraProviderImpl_2_5.cpp b/camera/provider/2.5/default/LegacyCameraProviderImpl_2_5.cpp
new file mode 100644
index 0000000..5233397
--- /dev/null
+++ b/camera/provider/2.5/default/LegacyCameraProviderImpl_2_5.cpp
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CamPrvdr@2.5-legacy"
+//#define LOG_NDEBUG 0
+#include <android/log.h>
+#include <inttypes.h>
+
+#include "LegacyCameraProviderImpl_2_5.h"
+#include "CameraProvider_2_5.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_5 {
+namespace implementation {
+
+template struct CameraProvider<LegacyCameraProviderImpl_2_5>;
+
+LegacyCameraProviderImpl_2_5::LegacyCameraProviderImpl_2_5() :
+        LegacyCameraProviderImpl_2_4() {
+}
+
+LegacyCameraProviderImpl_2_5::~LegacyCameraProviderImpl_2_5() {}
+
+Return<void> LegacyCameraProviderImpl_2_5::notifyDeviceStateChange(
+        hidl_bitfield<DeviceState> newState) {
+    ALOGD("%s: New device state: 0x%" PRIx64, __FUNCTION__, newState);
+    uint64_t state = static_cast<uint64_t>(newState);
+    mModule->notifyDeviceStateChange(state);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V2_5
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
diff --git a/camera/provider/2.5/default/LegacyCameraProviderImpl_2_5.h b/camera/provider/2.5/default/LegacyCameraProviderImpl_2_5.h
new file mode 100644
index 0000000..62dd97f
--- /dev/null
+++ b/camera/provider/2.5/default/LegacyCameraProviderImpl_2_5.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_LEGACYCAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_LEGACYCAMERAPROVIDER_H
+
+#include <LegacyCameraProviderImpl_2_4.h>
+
+#include <android/hardware/camera/provider/2.5/ICameraProvider.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace provider {
+namespace V2_5 {
+namespace implementation {
+
+using namespace ::android::hardware::camera::provider;
+
+using ::android::hardware::camera::common::V1_0::CameraDeviceStatus;
+using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::TorchModeStatus;
+using ::android::hardware::camera::common::V1_0::VendorTag;
+using ::android::hardware::camera::common::V1_0::VendorTagSection;
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+using ::android::hardware::camera::common::V1_0::helper::VendorTagDescriptor;
+using ::android::hardware::camera::provider::V2_5::DeviceState;
+using ::android::hardware::hidl_bitfield;
+using ::android::hardware::Return;
+
+struct LegacyCameraProviderImpl_2_5 : public V2_4::implementation::LegacyCameraProviderImpl_2_4 {
+    LegacyCameraProviderImpl_2_5();
+    ~LegacyCameraProviderImpl_2_5();
+
+    // Methods from ::android::hardware::camera::provider::V2_5::ICameraProvider follow.
+    Return<void> notifyDeviceStateChange(hidl_bitfield<DeviceState> newState);
+private:
+};
+
+}  // namespace implementation
+}  // namespace V2_5
+}  // namespace provider
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_5_CAMERAPROVIDER_H
diff --git a/camera/provider/2.5/default/OWNERS b/camera/provider/2.5/default/OWNERS
new file mode 100644
index 0000000..369b204
--- /dev/null
+++ b/camera/provider/2.5/default/OWNERS
@@ -0,0 +1,7 @@
+cychen@google.com
+epeev@google.com
+etalvala@google.com
+jchowdhary@google.com
+shuzhenwang@google.com
+yinchiayeh@google.com
+zhijunhe@google.com
diff --git a/camera/provider/2.5/default/android.hardware.camera.provider@2.5-external-service.rc b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-external-service.rc
new file mode 100644
index 0000000..107097e
--- /dev/null
+++ b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-external-service.rc
@@ -0,0 +1,9 @@
+service vendor.camera-provider-2-5-ext /vendor/bin/hw/android.hardware.camera.provider@2.5-external-service
+    interface android.hardware.camera.provider@2.5::ICameraProvider external/0
+    interface android.hardware.camera.provider@2.4::ICameraProvider external/0
+    class hal
+    user cameraserver
+    group audio camera input drmrpc usb
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service-lazy.rc b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service-lazy.rc
new file mode 100644
index 0000000..b45158a
--- /dev/null
+++ b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service-lazy.rc
@@ -0,0 +1,11 @@
+service vendor.camera-provider-2-5 /vendor/bin/hw/android.hardware.camera.provider@2.5-service-lazy
+    interface android.hardware.camera.provider@2.5::ICameraProvider legacy/0
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
+    oneshot
+    disabled
+    class hal
+    user cameraserver
+    group audio camera input drmrpc
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service-lazy_64.rc b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service-lazy_64.rc
new file mode 100644
index 0000000..aa070d9
--- /dev/null
+++ b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service-lazy_64.rc
@@ -0,0 +1,11 @@
+service vendor.camera-provider-2-5 /vendor/bin/hw/android.hardware.camera.provider@2.5-service-lazy_64
+    interface android.hardware.camera.provider@2.5::ICameraProvider legacy/0
+    interface android.hardware.camera.provider@2.5::ICameraProvider legacy/0
+    oneshot
+    disabled
+    class hal
+    user cameraserver
+    group audio camera input drmrpc
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service.rc b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service.rc
new file mode 100644
index 0000000..c065815
--- /dev/null
+++ b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service.rc
@@ -0,0 +1,9 @@
+service vendor.camera-provider-2-5 /vendor/bin/hw/android.hardware.camera.provider@2.5-service
+    interface android.hardware.camera.provider@2.5::ICameraProvider legacy/0
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
+    class hal
+    user cameraserver
+    group audio camera input drmrpc
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service_64.rc b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service_64.rc
new file mode 100644
index 0000000..63dd11d
--- /dev/null
+++ b/camera/provider/2.5/default/android.hardware.camera.provider@2.5-service_64.rc
@@ -0,0 +1,9 @@
+service vendor.camera-provider-2-5 /vendor/bin/hw/android.hardware.camera.provider@2.5-service_64
+    interface android.hardware.camera.provider@2.5::ICameraProvider legacy/0
+    interface android.hardware.camera.provider@2.4::ICameraProvider legacy/0
+    class hal
+    user cameraserver
+    group audio camera input drmrpc
+    ioprio rt 4
+    capabilities SYS_NICE
+    writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
diff --git a/camera/provider/2.5/default/external-service.cpp b/camera/provider/2.5/default/external-service.cpp
new file mode 100644
index 0000000..8788916
--- /dev/null
+++ b/camera/provider/2.5/default/external-service.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.camera.provider@2.5-external-service"
+
+#include <android/hardware/camera/provider/2.5/ICameraProvider.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "CameraProvider_2_5.h"
+#include "ExternalCameraProviderImpl_2_5.h"
+
+using android::status_t;
+using android::hardware::camera::provider::V2_5::ICameraProvider;
+
+int main()
+{
+    using namespace android::hardware::camera::provider::V2_5::implementation;
+
+    ALOGI("CameraProvider@2.5 external webcam service is starting.");
+
+    ::android::hardware::configureRpcThreadpool(/*threads*/ HWBINDER_THREAD_COUNT, /*willJoin*/ true);
+
+    ::android::sp<ICameraProvider> provider = new CameraProvider<ExternalCameraProviderImpl_2_5>();
+
+    status_t status = provider->registerAsService("external/0");
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering provider service: %d",
+            status);
+
+    ::android::hardware::joinRpcThreadpool();
+
+    return 0;
+}
diff --git a/camera/provider/2.5/default/service.cpp b/camera/provider/2.5/default/service.cpp
new file mode 100644
index 0000000..604215d
--- /dev/null
+++ b/camera/provider/2.5/default/service.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef LAZY_SERVICE
+#define LOG_TAG "android.hardware.camera.provider@2.5-service-lazy"
+#else
+#define LOG_TAG "android.hardware.camera.provider@2.5-service"
+#endif
+
+#include <android/hardware/camera/provider/2.5/ICameraProvider.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlLazyUtils.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "CameraProvider_2_5.h"
+#include "LegacyCameraProviderImpl_2_5.h"
+
+using android::status_t;
+using android::hardware::camera::provider::V2_5::ICameraProvider;
+
+#ifdef LAZY_SERVICE
+const bool kLazyService = true;
+#else
+const bool kLazyService = false;
+#endif
+
+int main()
+{
+    using namespace android::hardware::camera::provider::V2_5::implementation;
+
+    ALOGI("CameraProvider@2.5 legacy service is starting.");
+
+    ::android::hardware::configureRpcThreadpool(/*threads*/ HWBINDER_THREAD_COUNT, /*willJoin*/ true);
+
+    ::android::sp<ICameraProvider> provider = new CameraProvider<LegacyCameraProviderImpl_2_5>();
+
+    status_t status;
+    if (kLazyService) {
+        auto serviceRegistrar = std::make_shared<::android::hardware::LazyServiceRegistrar>();
+        status = serviceRegistrar->registerService(provider, "legacy/0");
+    } else {
+        status = provider->registerAsService("legacy/0");
+    }
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering provider service: %d",
+            status);
+
+    ::android::hardware::joinRpcThreadpool();
+
+    return 0;
+}
diff --git a/camera/provider/2.5/types.hal b/camera/provider/2.5/types.hal
new file mode 100644
index 0000000..6a8ae83
--- /dev/null
+++ b/camera/provider/2.5/types.hal
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.provider@2.5;
+
+/**
+ * DeviceState:
+ *
+ * Possible physical states of the overall device, for use with
+ * ICameraProvider::notifyDeviceStateChange.
+ *
+ */
+enum DeviceState : uint64_t {
+    /**
+     * The device is in its normal physical configuration. This is the default if the
+     * device does not support multiple different states.
+     */
+    NORMAL = 0,
+
+    /**
+     * Camera device(s) facing backward are covered.
+     */
+    BACK_COVERED = 1 << 0,
+
+    /**
+     * Camera device(s) facing foward are covered.
+     */
+    FRONT_COVERED = 1 << 1,
+
+    /**
+     * The device is folded.  If not set, the device is unfolded or does not
+     * support folding.
+     *
+     * The exact point when this status change happens during the folding
+     * operation is device-specific.
+     */
+    FOLDED = 1 << 2,
+
+};
diff --git a/cas/1.0/default/Android.bp b/cas/1.0/default/Android.bp
index debb3e5..aa080f4 100644
--- a/cas/1.0/default/Android.bp
+++ b/cas/1.0/default/Android.bp
@@ -23,10 +23,10 @@
       "libhidlmemory",
       "libhidltransport",
       "liblog",
+      "libstagefright_foundation",
       "libutils",
     ],
     header_libs: [
-      "libstagefright_foundation_headers",
       "media_plugin_headers",
     ],
 }
diff --git a/cas/1.0/default/DescramblerImpl.cpp b/cas/1.0/default/DescramblerImpl.cpp
index 6d5e2d5..9b09751 100644
--- a/cas/1.0/default/DescramblerImpl.cpp
+++ b/cas/1.0/default/DescramblerImpl.cpp
@@ -20,6 +20,7 @@
 #include <hidlmemory/mapping.h>
 #include <media/cas/DescramblerAPI.h>
 #include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/AString.h>
 #include <media/stagefright/foundation/AUtils.h>
 #include <utils/Log.h>
 
@@ -177,6 +178,7 @@
     // Casting hidl SubSample to DescramblerPlugin::SubSample, but need
     // to ensure structs are actually idential
 
+    AString detailedError;
     int32_t result = holder->descramble(
             dstBuffer.type != BufferType::SHARED_MEMORY,
             (DescramblerPlugin::ScramblingControl)scramblingControl,
@@ -186,10 +188,10 @@
             srcOffset,
             dstPtr,
             dstOffset,
-            NULL);
+            &detailedError);
 
     holder.reset();
-    _hidl_cb(toStatus(result >= 0 ? OK : result), result, NULL);
+    _hidl_cb(toStatus(result >= 0 ? OK : result), result, detailedError.c_str());
     return Void();
 }
 
diff --git a/cas/1.1/Android.bp b/cas/1.1/Android.bp
new file mode 100644
index 0000000..bb0edb9
--- /dev/null
+++ b/cas/1.1/Android.bp
@@ -0,0 +1,20 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.cas@1.1",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "ICas.hal",
+        "ICasListener.hal",
+        "IMediaCasService.hal",
+    ],
+    interfaces: [
+        "android.hardware.cas@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+
diff --git a/cas/1.1/ICas.hal b/cas/1.1/ICas.hal
new file mode 100644
index 0000000..027968e
--- /dev/null
+++ b/cas/1.1/ICas.hal
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.cas@1.1;
+
+import @1.0::HidlCasSessionId;
+import @1.0::ICas;
+import @1.0::Status;
+
+/**
+ * ICas is the API to control the cas system and is accessible from both
+ * Java and native level. It is used to manage sessions, provision/refresh
+ * the cas system, and process the EMM/ECM messages. It also allows bi-directional,
+ * scheme-specific communications between the client and the cas system.
+ */
+
+interface ICas extends @1.0::ICas {
+   /**
+     * Send an scheme-specific session event to the CasPlugin.
+     *
+     * @param sessionId the id of an opened session.
+     * @param event an integer denoting a scheme-specific event to be sent.
+     * @param arg a scheme-specific integer argument for the event.
+     * @param data a byte array containing scheme-specific data for the event.
+     * @return status the status of the call.
+     */
+    sendSessionEvent(HidlCasSessionId sessionId, int32_t event, int32_t arg,
+                     vec<uint8_t> eventData)
+          generates (Status status);
+};
diff --git a/cas/1.1/ICasListener.hal b/cas/1.1/ICasListener.hal
new file mode 100644
index 0000000..5ec1154
--- /dev/null
+++ b/cas/1.1/ICasListener.hal
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.cas@1.1;
+
+import @1.0::ICasListener;
+import @1.0::HidlCasSessionId;
+
+interface ICasListener extends @1.0::ICasListener{
+    /**
+      * Notify the listener of a scheme-specific session event from CA system.
+      *
+      * @param sessionId the id of an opened session.
+      * @param event an integer whose meaning is scheme-specific.
+      * @param arg an integer whose meaning is scheme-specific.
+      * @param data a byte array of data whose format and meaning are
+      * scheme-specific.
+      */
+    onSessionEvent(HidlCasSessionId sessionId, int32_t event, int32_t arg,
+                   vec<uint8_t> data);
+};
diff --git a/cas/1.1/IMediaCasService.hal b/cas/1.1/IMediaCasService.hal
new file mode 100644
index 0000000..e82b54c
--- /dev/null
+++ b/cas/1.1/IMediaCasService.hal
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.cas@1.1;
+
+import @1.1::ICas;
+import @1.1::ICasListener;
+import @1.0::IMediaCasService;
+
+/**
+ * IMediaCasService is the main entry point for interacting with a vendor's
+ * cas HAL to create cas and descrambler plugin instances. A cas plugin instance
+ * opens cas sessions which are used to obtain keys for a descrambler session,
+ * which can in turn be used to descramble protected video content.
+ */
+
+interface IMediaCasService extends @1.0::IMediaCasService {
+    /**
+     * Construct a new instance of a @1.1 ICAS CasPlugin given a CA_system_id.
+     *
+     * @param caSystemId the id of the CA system.
+     * @param listener the event listener to receive events coming from the CasPlugin.
+     * @return cas the newly created CasPlugin interface.
+     */
+    createPluginExt(int32_t caSystemId, ICasListener listener) generates (ICas cas);
+};
diff --git a/cas/1.1/default/Android.bp b/cas/1.1/default/Android.bp
new file mode 100644
index 0000000..68a49cf
--- /dev/null
+++ b/cas/1.1/default/Android.bp
@@ -0,0 +1,49 @@
+cc_defaults {
+    name: "cas_service_defaults@1.1",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    relative_install_path: "hw",
+    srcs: [
+      "CasImpl.cpp",
+      "DescramblerImpl.cpp",
+      "MediaCasService.cpp",
+      "service.cpp",
+      "SharedLibrary.cpp",
+      "TypeConvert.cpp",
+    ],
+
+    compile_multilib: "32",
+
+    shared_libs: [
+      "android.hardware.cas@1.0",
+      "android.hardware.cas@1.1",
+      "android.hardware.cas.native@1.0",
+      "android.hidl.memory@1.0",
+      "libbinder",
+      "libhidlbase",
+      "libhidlmemory",
+      "libhidltransport",
+      "liblog",
+      "libutils",
+    ],
+    header_libs: [
+      "libstagefright_foundation_headers",
+      "media_plugin_headers",
+    ],
+}
+
+cc_binary {
+    name: "android.hardware.cas@1.1-service",
+    vintf_fragments: ["android.hardware.cas@1.1-service.xml"],
+    defaults: ["cas_service_defaults@1.1"],
+    init_rc: ["android.hardware.cas@1.1-service.rc"],
+}
+
+cc_binary {
+    name: "android.hardware.cas@1.1-service-lazy",
+    vintf_fragments: ["android.hardware.cas@1.1-service-lazy.xml"],
+    overrides: ["android.hardware.cas@1.1-service"],
+    defaults: ["cas_service_defaults@1.1"],
+    init_rc: ["android.hardware.cas@1.1-service-lazy.rc"],
+    cflags: ["-DLAZY_SERVICE"],
+}
diff --git a/cas/1.1/default/CasImpl.cpp b/cas/1.1/default/CasImpl.cpp
new file mode 100644
index 0000000..4cc6017
--- /dev/null
+++ b/cas/1.1/default/CasImpl.cpp
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "android.hardware.cas@1.1-CasImpl"
+
+#include <android/hardware/cas/1.1/ICasListener.h>
+#include <media/cas/CasAPI.h>
+#include <utils/Log.h>
+
+#include "CasImpl.h"
+#include "SharedLibrary.h"
+#include "TypeConvert.h"
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+CasImpl::CasImpl(const sp<ICasListener>& listener) : mListener(listener) {
+    ALOGV("CTOR");
+}
+
+CasImpl::~CasImpl() {
+    ALOGV("DTOR");
+    release();
+}
+
+// static
+void CasImpl::OnEvent(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl* casImpl = static_cast<CasImpl*>(appData);
+    casImpl->onEvent(event, arg, data, size);
+}
+
+// static
+void CasImpl::CallBackExt(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size,
+                          const CasSessionId* sessionId) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl* casImpl = static_cast<CasImpl*>(appData);
+    casImpl->onEvent(sessionId, event, arg, data, size);
+}
+
+void CasImpl::init(const sp<SharedLibrary>& library, CasPlugin* plugin) {
+    mLibrary = library;
+    std::shared_ptr<CasPlugin> holder(plugin);
+    std::atomic_store(&mPluginHolder, holder);
+}
+
+void CasImpl::onEvent(int32_t event, int32_t arg, uint8_t* data, size_t size) {
+    if (mListener == NULL) {
+        return;
+    }
+
+    HidlCasData eventData;
+    if (data != NULL) {
+        eventData.setToExternal(data, size);
+    }
+
+    mListener->onEvent(event, arg, eventData);
+}
+
+void CasImpl::onEvent(const CasSessionId* sessionId, int32_t event, int32_t arg, uint8_t* data,
+                      size_t size) {
+    if (mListener == NULL) {
+        return;
+    }
+
+    HidlCasData eventData;
+    if (data != NULL) {
+        eventData.setToExternal(data, size);
+    }
+
+    if (sessionId != NULL) {
+        mListener->onSessionEvent(*sessionId, event, arg, eventData);
+    } else {
+        mListener->onEvent(event, arg, eventData);
+    }
+}
+
+Return<Status> CasImpl::setPrivateData(const HidlCasData& pvtData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->setPrivateData(pvtData));
+}
+
+Return<void> CasImpl::openSession(openSession_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+    CasSessionId sessionId;
+
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    status_t err = INVALID_OPERATION;
+    if (holder.get() != nullptr) {
+        err = holder->openSession(&sessionId);
+        holder.reset();
+    }
+
+    _hidl_cb(toStatus(err), sessionId);
+
+    return Void();
+}
+
+Return<Status> CasImpl::setSessionPrivateData(const HidlCasSessionId& sessionId,
+                                              const HidlCasData& pvtData) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->setSessionPrivateData(sessionId, pvtData));
+}
+
+Return<Status> CasImpl::closeSession(const HidlCasSessionId& sessionId) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->closeSession(sessionId));
+}
+
+Return<Status> CasImpl::processEcm(const HidlCasSessionId& sessionId, const HidlCasData& ecm) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->processEcm(sessionId, ecm));
+}
+
+Return<Status> CasImpl::processEmm(const HidlCasData& emm) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->processEmm(emm));
+}
+
+Return<Status> CasImpl::sendEvent(int32_t event, int32_t arg, const HidlCasData& eventData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    status_t err = holder->sendEvent(event, arg, eventData);
+    return toStatus(err);
+}
+
+Return<Status> CasImpl::sendSessionEvent(const HidlCasSessionId& sessionId, int32_t event,
+                                         int32_t arg, const HidlCasData& eventData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    status_t err = holder->sendSessionEvent(sessionId, event, arg, eventData);
+    return toStatus(err);
+}
+
+Return<Status> CasImpl::provision(const hidl_string& provisionString) {
+    ALOGV("%s: provisionString=%s", __FUNCTION__, provisionString.c_str());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->provision(String8(provisionString.c_str())));
+}
+
+Return<Status> CasImpl::refreshEntitlements(int32_t refreshType, const HidlCasData& refreshData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    status_t err = holder->refreshEntitlements(refreshType, refreshData);
+    return toStatus(err);
+}
+
+Return<Status> CasImpl::release() {
+    ALOGV("%s: plugin=%p", __FUNCTION__, mPluginHolder.get());
+
+    std::shared_ptr<CasPlugin> holder(nullptr);
+    std::atomic_store(&mPluginHolder, holder);
+
+    return Status::OK;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.1/default/CasImpl.h b/cas/1.1/default/CasImpl.h
new file mode 100644
index 0000000..18aee9e
--- /dev/null
+++ b/cas/1.1/default/CasImpl.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_CAS_IMPL_H_
+#define ANDROID_HARDWARE_CAS_V1_1_CAS_IMPL_H_
+
+#include <android/hardware/cas/1.1/ICas.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+struct CasPlugin;
+
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+struct ICasListener;
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasData;
+using ::android::hardware::cas::V1_0::HidlCasSessionId;
+using ::android::hardware::cas::V1_0::Status;
+
+class SharedLibrary;
+
+class CasImpl : public ICas {
+   public:
+    CasImpl(const sp<ICasListener>& listener);
+    virtual ~CasImpl();
+
+    static void OnEvent(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size);
+
+    static void CallBackExt(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size,
+                            const CasSessionId* sessionId);
+
+    void init(const sp<SharedLibrary>& library, CasPlugin* plugin);
+    void onEvent(int32_t event, int32_t arg, uint8_t* data, size_t size);
+
+    void onEvent(const CasSessionId* sessionId, int32_t event, int32_t arg, uint8_t* data,
+                 size_t size);
+
+    // ICas inherits
+
+    virtual Return<Status> setPrivateData(const HidlCasData& pvtData) override;
+
+    virtual Return<void> openSession(openSession_cb _hidl_cb) override;
+
+    virtual Return<Status> closeSession(const HidlCasSessionId& sessionId) override;
+
+    virtual Return<Status> setSessionPrivateData(const HidlCasSessionId& sessionId,
+                                                 const HidlCasData& pvtData) override;
+
+    virtual Return<Status> processEcm(const HidlCasSessionId& sessionId,
+                                      const HidlCasData& ecm) override;
+
+    virtual Return<Status> processEmm(const HidlCasData& emm) override;
+
+    virtual Return<Status> sendEvent(int32_t event, int32_t arg,
+                                     const HidlCasData& eventData) override;
+
+    virtual Return<Status> sendSessionEvent(const HidlCasSessionId& sessionId, int32_t event,
+                                            int32_t arg, const HidlCasData& eventData) override;
+
+    virtual Return<Status> provision(const hidl_string& provisionString) override;
+
+    virtual Return<Status> refreshEntitlements(int32_t refreshType,
+                                               const HidlCasData& refreshData) override;
+
+    virtual Return<Status> release() override;
+
+   private:
+    struct PluginHolder;
+    sp<SharedLibrary> mLibrary;
+    std::shared_ptr<CasPlugin> mPluginHolder;
+    sp<ICasListener> mListener;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_CAS_IMPL_H_
diff --git a/cas/1.1/default/DescramblerImpl.cpp b/cas/1.1/default/DescramblerImpl.cpp
new file mode 100644
index 0000000..36dc1a5
--- /dev/null
+++ b/cas/1.1/default/DescramblerImpl.cpp
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "android.hardware.cas@1.1-DescramblerImpl"
+
+#include <hidlmemory/mapping.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <utils/Log.h>
+
+#include "DescramblerImpl.h"
+#include "SharedLibrary.h"
+#include "TypeConvert.h"
+
+namespace android {
+using hidl::memory::V1_0::IMemory;
+
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+#define CHECK_SUBSAMPLE_DEF(type)                                                                 \
+    static_assert(sizeof(SubSample) == sizeof(type::SubSample), "SubSample: size doesn't match"); \
+    static_assert(offsetof(SubSample, numBytesOfClearData) ==                                     \
+                          offsetof(type::SubSample, mNumBytesOfClearData),                        \
+                  "SubSample: numBytesOfClearData offset doesn't match");                         \
+    static_assert(offsetof(SubSample, numBytesOfEncryptedData) ==                                 \
+                          offsetof(type::SubSample, mNumBytesOfEncryptedData),                    \
+                  "SubSample: numBytesOfEncryptedData offset doesn't match")
+
+CHECK_SUBSAMPLE_DEF(DescramblerPlugin);
+CHECK_SUBSAMPLE_DEF(CryptoPlugin);
+
+DescramblerImpl::DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin* plugin)
+    : mLibrary(library), mPluginHolder(plugin) {
+    ALOGV("CTOR: plugin=%p", mPluginHolder.get());
+}
+
+DescramblerImpl::~DescramblerImpl() {
+    ALOGV("DTOR: plugin=%p", mPluginHolder.get());
+    release();
+}
+
+Return<Status> DescramblerImpl::setMediaCasSession(const HidlCasSessionId& sessionId) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+
+    std::shared_ptr<DescramblerPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->setMediaCasSession(sessionId));
+}
+
+Return<bool> DescramblerImpl::requiresSecureDecoderComponent(const hidl_string& mime) {
+    std::shared_ptr<DescramblerPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return false;
+    }
+
+    return holder->requiresSecureDecoderComponent(String8(mime.c_str()));
+}
+
+static inline bool validateRangeForSize(uint64_t offset, uint64_t length, uint64_t size) {
+    return isInRange<uint64_t, uint64_t>(0, size, offset, length);
+}
+
+Return<void> DescramblerImpl::descramble(ScramblingControl scramblingControl,
+                                         const hidl_vec<SubSample>& subSamples,
+                                         const SharedBuffer& srcBuffer, uint64_t srcOffset,
+                                         const DestinationBuffer& dstBuffer, uint64_t dstOffset,
+                                         descramble_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+
+    // hidl_memory's size is stored in uint64_t, but mapMemory's mmap will map
+    // size in size_t. If size is over SIZE_MAX, mapMemory mapMemory could succeed
+    // but the mapped memory's actual size will be smaller than the reported size.
+    if (srcBuffer.heapBase.size() > SIZE_MAX) {
+        ALOGE("Invalid hidl_memory size: %llu", srcBuffer.heapBase.size());
+        android_errorWriteLog(0x534e4554, "79376389");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+
+    sp<IMemory> srcMem = mapMemory(srcBuffer.heapBase);
+
+    // Validate if the offset and size in the SharedBuffer is consistent with the
+    // mapped ashmem, since the offset and size is controlled by client.
+    if (srcMem == NULL) {
+        ALOGE("Failed to map src buffer.");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+    if (!validateRangeForSize(srcBuffer.offset, srcBuffer.size, (uint64_t)srcMem->getSize())) {
+        ALOGE("Invalid src buffer range: offset %llu, size %llu, srcMem size %llu",
+              srcBuffer.offset, srcBuffer.size, (uint64_t)srcMem->getSize());
+        android_errorWriteLog(0x534e4554, "67962232");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+
+    // use 64-bit here to catch bad subsample size that might be overflowing.
+    uint64_t totalBytesInSubSamples = 0;
+    for (size_t i = 0; i < subSamples.size(); i++) {
+        totalBytesInSubSamples +=
+                (uint64_t)subSamples[i].numBytesOfClearData + subSamples[i].numBytesOfEncryptedData;
+    }
+    // Further validate if the specified srcOffset and requested total subsample size
+    // is consistent with the source shared buffer size.
+    if (!validateRangeForSize(srcOffset, totalBytesInSubSamples, srcBuffer.size)) {
+        ALOGE("Invalid srcOffset and subsample size: "
+              "srcOffset %llu, totalBytesInSubSamples %llu, srcBuffer size %llu",
+              srcOffset, totalBytesInSubSamples, srcBuffer.size);
+        android_errorWriteLog(0x534e4554, "67962232");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+
+    void* srcPtr = (uint8_t*)(void*)srcMem->getPointer() + srcBuffer.offset;
+    void* dstPtr = NULL;
+    if (dstBuffer.type == BufferType::SHARED_MEMORY) {
+        // When using shared memory, src buffer is also used as dst,
+        // we don't map it again here.
+        dstPtr = srcPtr;
+
+        // In this case the dst and src would be the same buffer, need to validate
+        // dstOffset against the buffer size too.
+        if (!validateRangeForSize(dstOffset, totalBytesInSubSamples, srcBuffer.size)) {
+            ALOGE("Invalid dstOffset and subsample size: "
+                  "dstOffset %llu, totalBytesInSubSamples %llu, srcBuffer size %llu",
+                  dstOffset, totalBytesInSubSamples, srcBuffer.size);
+            android_errorWriteLog(0x534e4554, "67962232");
+            _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+            return Void();
+        }
+    } else {
+        native_handle_t* handle =
+                const_cast<native_handle_t*>(dstBuffer.secureMemory.getNativeHandle());
+        dstPtr = static_cast<void*>(handle);
+    }
+
+    // Get a local copy of the shared_ptr for the plugin. Note that before
+    // calling the HIDL callback, this shared_ptr must be manually reset,
+    // since the client side could proceed as soon as the callback is called
+    // without waiting for this method to go out of scope.
+    std::shared_ptr<DescramblerPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        _hidl_cb(toStatus(INVALID_OPERATION), 0, NULL);
+        return Void();
+    }
+
+    // Casting hidl SubSample to DescramblerPlugin::SubSample, but need
+    // to ensure structs are actually idential
+
+    int32_t result =
+            holder->descramble(dstBuffer.type != BufferType::SHARED_MEMORY,
+                               (DescramblerPlugin::ScramblingControl)scramblingControl,
+                               subSamples.size(), (DescramblerPlugin::SubSample*)subSamples.data(),
+                               srcPtr, srcOffset, dstPtr, dstOffset, NULL);
+
+    holder.reset();
+    _hidl_cb(toStatus(result >= 0 ? OK : result), result, NULL);
+    return Void();
+}
+
+Return<Status> DescramblerImpl::release() {
+    ALOGV("%s: plugin=%p", __FUNCTION__, mPluginHolder.get());
+
+    std::shared_ptr<DescramblerPlugin> holder(nullptr);
+    std::atomic_store(&mPluginHolder, holder);
+
+    return Status::OK;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.1/default/DescramblerImpl.h b/cas/1.1/default/DescramblerImpl.h
new file mode 100644
index 0000000..a1f66ae
--- /dev/null
+++ b/cas/1.1/default/DescramblerImpl.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_DESCRAMBLER_IMPL_H_
+#define ANDROID_HARDWARE_CAS_V1_1_DESCRAMBLER_IMPL_H_
+
+#include <android/hardware/cas/native/1.0/IDescrambler.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+struct DescramblerPlugin;
+using namespace hardware::cas::native::V1_0;
+
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasSessionId;
+using ::android::hardware::cas::V1_0::Status;
+
+class SharedLibrary;
+
+class DescramblerImpl : public IDescrambler {
+   public:
+    DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin* plugin);
+    virtual ~DescramblerImpl();
+
+    virtual Return<Status> setMediaCasSession(const HidlCasSessionId& sessionId) override;
+
+    virtual Return<bool> requiresSecureDecoderComponent(const hidl_string& mime) override;
+
+    virtual Return<void> descramble(ScramblingControl scramblingControl,
+                                    const hidl_vec<SubSample>& subSamples,
+                                    const SharedBuffer& srcBuffer, uint64_t srcOffset,
+                                    const DestinationBuffer& dstBuffer, uint64_t dstOffset,
+                                    descramble_cb _hidl_cb) override;
+
+    virtual Return<Status> release() override;
+
+   private:
+    sp<SharedLibrary> mLibrary;
+    std::shared_ptr<DescramblerPlugin> mPluginHolder;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_DESCRAMBLER_IMPL_H_
diff --git a/cas/1.1/default/FactoryLoader.h b/cas/1.1/default/FactoryLoader.h
new file mode 100644
index 0000000..c4a48e2
--- /dev/null
+++ b/cas/1.1/default/FactoryLoader.h
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_FACTORY_LOADER_H_
+#define ANDROID_HARDWARE_CAS_V1_1_FACTORY_LOADER_H_
+
+#include <dirent.h>
+#include <dlfcn.h>
+#include <media/cas/CasAPI.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+#include "SharedLibrary.h"
+
+using namespace std;
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasPluginDescriptor;
+
+template <class T>
+class FactoryLoader {
+   public:
+    FactoryLoader(const char* name) : mFactory(NULL), mCreateFactoryFuncName(name) {}
+
+    virtual ~FactoryLoader() { closeFactory(); }
+
+    bool findFactoryForScheme(int32_t CA_system_id, sp<SharedLibrary>* library = NULL,
+                              T** factory = NULL);
+
+    bool enumeratePlugins(vector<HidlCasPluginDescriptor>* results);
+
+   private:
+    typedef T* (*CreateFactoryFunc)();
+
+    Mutex mMapLock;
+    T* mFactory;
+    const char* mCreateFactoryFuncName;
+    sp<SharedLibrary> mLibrary;
+    KeyedVector<int32_t, String8> mCASystemIdToLibraryPathMap;
+    KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+
+    bool loadFactoryForSchemeFromPath(const String8& path, int32_t CA_system_id,
+                                      sp<SharedLibrary>* library, T** factory);
+
+    bool queryPluginsFromPath(const String8& path, vector<HidlCasPluginDescriptor>* results);
+
+    bool openFactory(const String8& path);
+    void closeFactory();
+};
+
+template <class T>
+bool FactoryLoader<T>::findFactoryForScheme(int32_t CA_system_id, sp<SharedLibrary>* library,
+                                            T** factory) {
+    if (library != NULL) {
+        library->clear();
+    }
+    if (factory != NULL) {
+        *factory = NULL;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    // first check cache
+    ssize_t index = mCASystemIdToLibraryPathMap.indexOfKey(CA_system_id);
+    if (index >= 0) {
+        return loadFactoryForSchemeFromPath(mCASystemIdToLibraryPathMap[index], CA_system_id,
+                                            library, factory);
+    }
+
+    // no luck, have to search
+    String8 dirPath("/vendor/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            if (loadFactoryForSchemeFromPath(pluginPath, CA_system_id, library, factory)) {
+                mCASystemIdToLibraryPathMap.add(CA_system_id, pluginPath);
+                closedir(pDir);
+
+                return true;
+            }
+        }
+    }
+
+    closedir(pDir);
+
+    ALOGE("Failed to find plugin");
+    return false;
+}
+
+template <class T>
+bool FactoryLoader<T>::enumeratePlugins(vector<HidlCasPluginDescriptor>* results) {
+    ALOGI("enumeratePlugins");
+
+    results->clear();
+
+    String8 dirPath("/vendor/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            queryPluginsFromPath(pluginPath, results);
+        }
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::loadFactoryForSchemeFromPath(const String8& path, int32_t CA_system_id,
+                                                    sp<SharedLibrary>* library, T** factory) {
+    closeFactory();
+
+    if (!openFactory(path) || !mFactory->isSystemIdSupported(CA_system_id)) {
+        closeFactory();
+        return false;
+    }
+
+    if (library != NULL) {
+        *library = mLibrary;
+    }
+    if (factory != NULL) {
+        *factory = mFactory;
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::queryPluginsFromPath(const String8& path,
+                                            vector<HidlCasPluginDescriptor>* results) {
+    closeFactory();
+
+    vector<CasPluginDescriptor> descriptors;
+    if (!openFactory(path) || mFactory->queryPlugins(&descriptors) != OK) {
+        closeFactory();
+        return false;
+    }
+
+    for (auto it = descriptors.begin(); it != descriptors.end(); it++) {
+        results->push_back(
+                HidlCasPluginDescriptor{.caSystemId = it->CA_system_id, .name = it->name.c_str()});
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::openFactory(const String8& path) {
+    // get strong pointer to open shared library
+    ssize_t index = mLibraryPathToOpenLibraryMap.indexOfKey(path);
+    if (index >= 0) {
+        mLibrary = mLibraryPathToOpenLibraryMap[index].promote();
+    } else {
+        index = mLibraryPathToOpenLibraryMap.add(path, NULL);
+    }
+
+    if (!mLibrary.get()) {
+        mLibrary = new SharedLibrary(path);
+        if (!*mLibrary) {
+            return false;
+        }
+
+        mLibraryPathToOpenLibraryMap.replaceValueAt(index, mLibrary);
+    }
+
+    CreateFactoryFunc createFactory = (CreateFactoryFunc)mLibrary->lookup(mCreateFactoryFuncName);
+    if (createFactory == NULL || (mFactory = createFactory()) == NULL) {
+        return false;
+    }
+    return true;
+}
+
+template <class T>
+void FactoryLoader<T>::closeFactory() {
+    delete mFactory;
+    mFactory = NULL;
+    mLibrary.clear();
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_FACTORY_LOADER_H_
diff --git a/cas/1.1/default/MediaCasService.cpp b/cas/1.1/default/MediaCasService.cpp
new file mode 100644
index 0000000..eb3fa6b
--- /dev/null
+++ b/cas/1.1/default/MediaCasService.cpp
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "android.hardware.cas@1.1-MediaCasService"
+
+#include <android/hardware/cas/1.1/ICasListener.h>
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <utils/Log.h>
+
+#include "CasImpl.h"
+#include "DescramblerImpl.h"
+#include "MediaCasService.h"
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+class Wrapper : public V1_1::ICasListener {
+  public:
+    static sp<V1_1::ICasListener> wrap(sp<V1_0::ICasListener> impl) {
+        sp<V1_1::ICasListener> cast = V1_1::ICasListener::castFrom(impl);
+        if (cast == NULL) {
+            cast = new Wrapper(impl);
+        }
+        return cast;
+    }
+
+    virtual Return<void> onEvent(int32_t event, int32_t arg,
+                                 const hidl_vec<uint8_t>& data) override {
+        mImpl->onEvent(event, arg, data);
+        return Void();
+    }
+
+    virtual Return<void> onSessionEvent(const hidl_vec<uint8_t>& /* sessionId */,
+                                        int32_t /* event */, int32_t /* arg */,
+                                        const hidl_vec<uint8_t>& /*data*/) override {
+        ALOGV("Do nothing on Session Event for cas@1.0 client in cas@1.1");
+        return Void();
+    }
+
+  private:
+    Wrapper(sp<V1_0::ICasListener> impl) : mImpl(impl){};
+    sp<V1_0::ICasListener> mImpl;
+};
+
+MediaCasService::MediaCasService()
+    : mCasLoader("createCasFactory"), mDescramblerLoader("createDescramblerFactory") {}
+
+MediaCasService::~MediaCasService() {}
+
+Return<void> MediaCasService::enumeratePlugins(enumeratePlugins_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+
+    vector<HidlCasPluginDescriptor> results;
+    mCasLoader.enumeratePlugins(&results);
+
+    _hidl_cb(results);
+    return Void();
+}
+
+Return<bool> MediaCasService::isSystemIdSupported(int32_t CA_system_id) {
+    ALOGV("isSystemIdSupported: CA_system_id=%d", CA_system_id);
+
+    return mCasLoader.findFactoryForScheme(CA_system_id);
+}
+
+Return<sp<V1_0::ICas>> MediaCasService::createPlugin(int32_t CA_system_id,
+                                                     const sp<V1_0::ICasListener>& listener) {
+    ALOGV("%s:Use createPluginExt to create plugin in cas@1.1", __FUNCTION__);
+
+    sp<ICas> result;
+
+    sp<V1_1::ICasListener> listenerV1_1 = Wrapper::wrap(listener);
+
+    result = createPluginExt(CA_system_id, listenerV1_1);
+
+    return result;
+}
+
+Return<sp<ICas>> MediaCasService::createPluginExt(int32_t CA_system_id,
+                                                  const sp<ICasListener>& listener) {
+    ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+    if (listener == NULL) ALOGV("%s: Listener is NULL", __FUNCTION__);
+
+    sp<ICas> result;
+
+    CasFactory* factory;
+    sp<SharedLibrary> library;
+    if (mCasLoader.findFactoryForScheme(CA_system_id, &library, &factory)) {
+        CasPlugin* plugin = NULL;
+        sp<CasImpl> casImpl = new CasImpl(listener);
+        if (factory->createPlugin(CA_system_id, casImpl.get(), &CasImpl::CallBackExt, &plugin) ==
+                    OK &&
+            plugin != NULL) {
+            casImpl->init(library, plugin);
+            result = casImpl;
+        }
+    }
+
+    return result;
+}
+
+Return<bool> MediaCasService::isDescramblerSupported(int32_t CA_system_id) {
+    ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+
+    return mDescramblerLoader.findFactoryForScheme(CA_system_id);
+}
+
+Return<sp<IDescramblerBase>> MediaCasService::createDescrambler(int32_t CA_system_id) {
+    ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+
+    sp<IDescrambler> result;
+
+    DescramblerFactory* factory;
+    sp<SharedLibrary> library;
+    if (mDescramblerLoader.findFactoryForScheme(CA_system_id, &library, &factory)) {
+        DescramblerPlugin* plugin = NULL;
+        if (factory->createPlugin(CA_system_id, &plugin) == OK && plugin != NULL) {
+            result = new DescramblerImpl(library, plugin);
+        }
+    }
+
+    return result;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.1/default/MediaCasService.h b/cas/1.1/default/MediaCasService.h
new file mode 100644
index 0000000..ec5a86d
--- /dev/null
+++ b/cas/1.1/default/MediaCasService.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_MEDIA_CAS_SERVICE_H_
+#define ANDROID_HARDWARE_CAS_V1_1_MEDIA_CAS_SERVICE_H_
+
+#include <android/hardware/cas/1.1/IMediaCasService.h>
+
+#include "FactoryLoader.h"
+
+namespace android {
+struct CasFactory;
+struct DescramblerFactory;
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasPluginDescriptor;
+using ::android::hardware::cas::V1_0::IDescramblerBase;
+
+class MediaCasService : public IMediaCasService {
+   public:
+    MediaCasService();
+
+    virtual Return<void> enumeratePlugins(enumeratePlugins_cb _hidl_cb) override;
+
+    virtual Return<bool> isSystemIdSupported(int32_t CA_system_id) override;
+
+    virtual Return<sp<V1_0::ICas>> createPlugin(int32_t CA_system_id,
+                                                const sp<V1_0::ICasListener>& listener) override;
+
+    virtual Return<sp<ICas>> createPluginExt(int32_t CA_system_id,
+                                             const sp<ICasListener>& listener) override;
+
+    virtual Return<bool> isDescramblerSupported(int32_t CA_system_id) override;
+
+    virtual Return<sp<IDescramblerBase>> createDescrambler(int32_t CA_system_id) override;
+
+   private:
+    FactoryLoader<CasFactory> mCasLoader;
+    FactoryLoader<DescramblerFactory> mDescramblerLoader;
+
+    virtual ~MediaCasService();
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_MEDIA_CAS_SERVICE_H_
diff --git a/cas/1.1/default/SharedLibrary.cpp b/cas/1.1/default/SharedLibrary.cpp
new file mode 100644
index 0000000..ffe4bb9
--- /dev/null
+++ b/cas/1.1/default/SharedLibrary.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "android.hardware.cas@1.1-SharedLibrary"
+
+#include "SharedLibrary.h"
+#include <dlfcn.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <utils/Log.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+SharedLibrary::SharedLibrary(const String8& path) {
+    mLibHandle = dlopen(path.string(), RTLD_NOW);
+}
+
+SharedLibrary::~SharedLibrary() {
+    if (mLibHandle != NULL) {
+        dlclose(mLibHandle);
+        mLibHandle = NULL;
+    }
+}
+
+bool SharedLibrary::operator!() const {
+    return mLibHandle == NULL;
+}
+
+void* SharedLibrary::lookup(const char* symbol) const {
+    if (!mLibHandle) {
+        return NULL;
+    }
+    // Clear last error before we load the symbol again,
+    // in case the caller didn't retrieve it.
+    (void)dlerror();
+    return dlsym(mLibHandle, symbol);
+}
+
+const char* SharedLibrary::lastError() const {
+    const char* error = dlerror();
+    return error ? error : "No errors or unknown error";
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.1/default/SharedLibrary.h b/cas/1.1/default/SharedLibrary.h
new file mode 100644
index 0000000..f4d2ff6
--- /dev/null
+++ b/cas/1.1/default/SharedLibrary.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_SHARED_LIBRARY_H_
+#define ANDROID_HARDWARE_CAS_V1_1_SHARED_LIBRARY_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+class SharedLibrary : public RefBase {
+   public:
+    explicit SharedLibrary(const String8& path);
+    ~SharedLibrary();
+
+    bool operator!() const;
+    void* lookup(const char* symbol) const;
+    const char* lastError() const;
+
+   private:
+    void* mLibHandle;
+    DISALLOW_EVIL_CONSTRUCTORS(SharedLibrary);
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_SHARED_LIBRARY_H_
diff --git a/cas/1.1/default/TypeConvert.cpp b/cas/1.1/default/TypeConvert.cpp
new file mode 100644
index 0000000..09ef41a
--- /dev/null
+++ b/cas/1.1/default/TypeConvert.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "android.hardware.cas@1.1-TypeConvert"
+
+#include "TypeConvert.h"
+#include <utils/Log.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+Status toStatus(status_t legacyStatus) {
+    Status status;
+    switch (legacyStatus) {
+        case android::OK:
+            status = Status::OK;
+            break;
+        case android::ERROR_CAS_NO_LICENSE:
+            status = Status::ERROR_CAS_NO_LICENSE;
+            break;
+        case android::ERROR_CAS_LICENSE_EXPIRED:
+            status = Status::ERROR_CAS_LICENSE_EXPIRED;
+            break;
+        case android::ERROR_CAS_SESSION_NOT_OPENED:
+            status = Status::ERROR_CAS_SESSION_NOT_OPENED;
+            break;
+        case android::ERROR_CAS_CANNOT_HANDLE:
+            status = Status::ERROR_CAS_CANNOT_HANDLE;
+            break;
+        case android::ERROR_CAS_TAMPER_DETECTED:
+            status = Status::ERROR_CAS_INVALID_STATE;
+            break;
+        case android::BAD_VALUE:
+            status = Status::BAD_VALUE;
+            break;
+        case android::ERROR_CAS_NOT_PROVISIONED:
+            status = Status::ERROR_CAS_NOT_PROVISIONED;
+            break;
+        case android::ERROR_CAS_RESOURCE_BUSY:
+            status = Status::ERROR_CAS_RESOURCE_BUSY;
+            break;
+        case android::ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION:
+            status = Status::ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION;
+            break;
+        case android::ERROR_CAS_DEVICE_REVOKED:
+            status = Status::ERROR_CAS_DEVICE_REVOKED;
+            break;
+        case android::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED:
+            status = Status::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED;
+            break;
+        case android::ERROR_CAS_DECRYPT:
+            status = Status::ERROR_CAS_DECRYPT;
+            break;
+        default:
+            ALOGW("Unable to convert legacy status: %d, defaulting to UNKNOWN", legacyStatus);
+            status = Status::ERROR_CAS_UNKNOWN;
+            break;
+    }
+    return status;
+}
+
+String8 sessionIdToString(const CasSessionId& sessionId) {
+    String8 result;
+    for (size_t i = 0; i < sessionId.size(); i++) {
+        result.appendFormat("%02x ", sessionId[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.1/default/TypeConvert.h b/cas/1.1/default/TypeConvert.h
new file mode 100644
index 0000000..c4a0119
--- /dev/null
+++ b/cas/1.1/default/TypeConvert.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_TYPE_CONVERT_H
+#define ANDROID_HARDWARE_CAS_V1_1_TYPE_CONVERT_H
+
+#include <android/hardware/cas/1.0/types.h>
+#include <media/cas/CasAPI.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/String8.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::Status;
+
+Status toStatus(status_t legacyStatus);
+
+String8 sessionIdToString(const CasSessionId& sessionId);
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_TYPE_CONVERT_H
diff --git a/cas/1.1/default/android.hardware.cas@1.1-service-lazy.rc b/cas/1.1/default/android.hardware.cas@1.1-service-lazy.rc
new file mode 100644
index 0000000..9227b6f
--- /dev/null
+++ b/cas/1.1/default/android.hardware.cas@1.1-service-lazy.rc
@@ -0,0 +1,9 @@
+service vendor.cas-hal-1-1 /vendor/bin/hw/android.hardware.cas@1.1-service-lazy
+    interface android.hardware.cas@1.1::IMediaCasService default
+    oneshot
+    disabled
+    class hal
+    user media
+    group mediadrm drmrpc
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/cas/1.1/default/android.hardware.cas@1.1-service-lazy.xml b/cas/1.1/default/android.hardware.cas@1.1-service-lazy.xml
new file mode 100644
index 0000000..c9f13ba
--- /dev/null
+++ b/cas/1.1/default/android.hardware.cas@1.1-service-lazy.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.cas</name>
+        <transport>hwbinder</transport>
+        <version>1.1</version>
+        <interface>
+            <name>IMediaCasService</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/cas/1.1/default/android.hardware.cas@1.1-service.rc b/cas/1.1/default/android.hardware.cas@1.1-service.rc
new file mode 100644
index 0000000..4081fe1
--- /dev/null
+++ b/cas/1.1/default/android.hardware.cas@1.1-service.rc
@@ -0,0 +1,6 @@
+service vendor.cas-hal-1-1 /vendor/bin/hw/android.hardware.cas@1.1-service
+    class hal
+    user media
+    group mediadrm drmrpc
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/cas/1.1/default/android.hardware.cas@1.1-service.xml b/cas/1.1/default/android.hardware.cas@1.1-service.xml
new file mode 100644
index 0000000..c9f13ba
--- /dev/null
+++ b/cas/1.1/default/android.hardware.cas@1.1-service.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.cas</name>
+        <transport>hwbinder</transport>
+        <version>1.1</version>
+        <interface>
+            <name>IMediaCasService</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/cas/1.1/default/service.cpp b/cas/1.1/default/service.cpp
new file mode 100644
index 0000000..9625303
--- /dev/null
+++ b/cas/1.1/default/service.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#ifdef LAZY_SERVICE
+#define LOG_TAG "android.hardware.cas@1.1-service-lazy"
+#else
+#define LOG_TAG "android.hardware.cas@1.1-service"
+#endif
+
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+#include <hidl/LegacySupport.h>
+
+#include "MediaCasService.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::LazyServiceRegistrar;
+using android::hardware::cas::V1_1::IMediaCasService;
+using android::hardware::cas::V1_1::implementation::MediaCasService;
+
+#ifdef LAZY_SERVICE
+const bool kLazyService = true;
+#else
+const bool kLazyService = false;
+#endif
+
+int main() {
+    configureRpcThreadpool(8, true /* callerWillJoin */);
+
+    // Setup hwbinder service
+    android::sp<IMediaCasService> service = new MediaCasService();
+    android::status_t status;
+    if (kLazyService) {
+        auto serviceRegistrar = std::make_shared<LazyServiceRegistrar>();
+        status = serviceRegistrar->registerService(service);
+    } else {
+        status = service->registerAsService();
+    }
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering cas service: %d", status);
+
+    joinRpcThreadpool();
+    return 0;
+}
diff --git a/cas/1.1/vts/functional/Android.bp b/cas/1.1/vts/functional/Android.bp
new file mode 100644
index 0000000..8afd19a
--- /dev/null
+++ b/cas/1.1/vts/functional/Android.bp
@@ -0,0 +1,35 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalCasV1_1TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalCasV1_1TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.cas@1.0",
+        "android.hardware.cas@1.1",
+        "android.hardware.cas.native@1.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libhidlallocatorutils",
+        "libhidlmemory",
+    ],
+    shared_libs: [
+        "libbinder",
+    ],
+    test_suites: ["general-tests"],
+}
+
diff --git a/cas/1.1/vts/functional/OWNERS b/cas/1.1/vts/functional/OWNERS
new file mode 100644
index 0000000..29246ed
--- /dev/null
+++ b/cas/1.1/vts/functional/OWNERS
@@ -0,0 +1,3 @@
+nchalko@google.com
+chz@google.com
+quxiangfang@google.com
diff --git a/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp b/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
new file mode 100644
index 0000000..88f1fb0
--- /dev/null
+++ b/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
@@ -0,0 +1,571 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "mediacas_hidl_hal_test"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <android-base/logging.h>
+#include <android/hardware/cas/1.0/IDescramblerBase.h>
+#include <android/hardware/cas/1.0/types.h>
+#include <android/hardware/cas/1.1/ICas.h>
+#include <android/hardware/cas/1.1/ICasListener.h>
+#include <android/hardware/cas/1.1/IMediaCasService.h>
+#include <android/hardware/cas/native/1.0/IDescrambler.h>
+#include <android/hardware/cas/native/1.0/types.h>
+#include <binder/MemoryDealer.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/HidlTransportSupport.h>
+#include <hidl/Status.h>
+#include <hidlmemory/FrameworkUtils.h>
+#include <utils/Condition.h>
+#include <utils/Mutex.h>
+
+#define CLEAR_KEY_SYSTEM_ID 0xF6D8
+#define INVALID_SYSTEM_ID 0
+#define WAIT_TIMEOUT 3000000000
+
+#define PROVISION_STR                                      \
+    "{                                                   " \
+    "  \"id\": 21140844,                                 " \
+    "  \"name\": \"Test Title\",                         " \
+    "  \"lowercase_organization_name\": \"Android\",     " \
+    "  \"asset_key\": {                                  " \
+    "  \"encryption_key\": \"nezAr3CHFrmBR9R8Tedotw==\"  " \
+    "  },                                                " \
+    "  \"cas_type\": 1,                                  " \
+    "  \"track_types\": [ ]                              " \
+    "}                                                   "
+
+using android::Condition;
+using android::IMemory;
+using android::IMemoryHeap;
+using android::MemoryDealer;
+using android::Mutex;
+using android::sp;
+using android::hardware::fromHeap;
+using android::hardware::hidl_string;
+using android::hardware::hidl_vec;
+using android::hardware::HidlMemory;
+using android::hardware::Return;
+using android::hardware::Void;
+using android::hardware::cas::native::V1_0::BufferType;
+using android::hardware::cas::native::V1_0::DestinationBuffer;
+using android::hardware::cas::native::V1_0::IDescrambler;
+using android::hardware::cas::native::V1_0::ScramblingControl;
+using android::hardware::cas::native::V1_0::SharedBuffer;
+using android::hardware::cas::native::V1_0::SubSample;
+using android::hardware::cas::V1_0::HidlCasPluginDescriptor;
+using android::hardware::cas::V1_0::IDescramblerBase;
+using android::hardware::cas::V1_0::Status;
+using android::hardware::cas::V1_1::ICas;
+using android::hardware::cas::V1_1::ICasListener;
+using android::hardware::cas::V1_1::IMediaCasService;
+
+namespace {
+
+const uint8_t kEcmBinaryBuffer[] = {
+        0x00, 0x00, 0x01, 0xf0, 0x00, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x46, 0x00,
+        0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x27, 0x10, 0x02, 0x00,
+        0x01, 0x77, 0x01, 0x42, 0x95, 0x6c, 0x0e, 0xe3, 0x91, 0xbc, 0xfd, 0x05, 0xb1, 0x60, 0x4f,
+        0x17, 0x82, 0xa4, 0x86, 0x9b, 0x23, 0x56, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
+        0x27, 0x10, 0x02, 0x00, 0x01, 0x77, 0x01, 0x42, 0x95, 0x6c, 0xd7, 0x43, 0x62, 0xf8, 0x1c,
+        0x62, 0x19, 0x05, 0xc7, 0x3a, 0x42, 0xcd, 0xfd, 0xd9, 0x13, 0x48,
+};
+
+const SubSample kSubSamples[] = {{162, 0}, {0, 184}, {0, 184}};
+
+const uint8_t kInBinaryBuffer[] = {
+        0x00, 0x00, 0x00, 0x01, 0x09, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0xc0, 0x1e, 0xdb,
+        0x01, 0x40, 0x16, 0xec, 0x04, 0x40, 0x00, 0x00, 0x03, 0x00, 0x40, 0x00, 0x00, 0x0f, 0x03,
+        0xc5, 0x8b, 0xb8, 0x00, 0x00, 0x00, 0x01, 0x68, 0xca, 0x8c, 0xb2, 0x00, 0x00, 0x01, 0x06,
+        0x05, 0xff, 0xff, 0x70, 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7, 0x96, 0x2c, 0xd8,
+        0x20, 0xd9, 0x23, 0xee, 0xef, 0x78, 0x32, 0x36, 0x34, 0x20, 0x2d, 0x20, 0x63, 0x6f, 0x72,
+        0x65, 0x20, 0x31, 0x34, 0x32, 0x20, 0x2d, 0x20, 0x48, 0x2e, 0x32, 0x36, 0x34, 0x2f, 0x4d,
+        0x50, 0x45, 0x47, 0x2d, 0x34, 0x20, 0x41, 0x56, 0x43, 0x20, 0x63, 0x6f, 0x64, 0x65, 0x63,
+        0x20, 0x2d, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x6c, 0x65, 0x66, 0x74, 0x20, 0x32, 0x30, 0x30,
+        0x33, 0x2d, 0x32, 0x30, 0x31, 0x34, 0x20, 0x2d, 0x20, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f,
+        0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6c, 0x61, 0x6e, 0x2e, 0x6f,
+        0x72, 0x67, 0x2f, 0x78, 0x32, 0x36, 0x34, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x6e, 0x45, 0x21,
+        0x82, 0x38, 0xf0, 0x9d, 0x7d, 0x96, 0xe6, 0x94, 0xae, 0xe2, 0x87, 0x8f, 0x04, 0x49, 0xe5,
+        0xf6, 0x8c, 0x8b, 0x9a, 0x10, 0x18, 0xba, 0x94, 0xe9, 0x22, 0x31, 0x04, 0x7e, 0x60, 0x5b,
+        0xc4, 0x24, 0x00, 0x90, 0x62, 0x0d, 0xdc, 0x85, 0x74, 0x75, 0x78, 0xd0, 0x14, 0x08, 0xcb,
+        0x02, 0x1d, 0x7d, 0x9d, 0x34, 0xe8, 0x81, 0xb9, 0xf7, 0x09, 0x28, 0x79, 0x29, 0x8d, 0xe3,
+        0x14, 0xed, 0x5f, 0xca, 0xaf, 0xf4, 0x1c, 0x49, 0x15, 0xe1, 0x80, 0x29, 0x61, 0x76, 0x80,
+        0x43, 0xf8, 0x58, 0x53, 0x40, 0xd7, 0x31, 0x6d, 0x61, 0x81, 0x41, 0xe9, 0x77, 0x9f, 0x9c,
+        0xe1, 0x6d, 0xf2, 0xee, 0xd9, 0xc8, 0x67, 0xd2, 0x5f, 0x48, 0x73, 0xe3, 0x5c, 0xcd, 0xa7,
+        0x45, 0x58, 0xbb, 0xdd, 0x28, 0x1d, 0x68, 0xfc, 0xb4, 0xc6, 0xf6, 0x92, 0xf6, 0x30, 0x03,
+        0xaa, 0xe4, 0x32, 0xf6, 0x34, 0x51, 0x4b, 0x0f, 0x8c, 0xf9, 0xac, 0x98, 0x22, 0xfb, 0x49,
+        0xc8, 0xbf, 0xca, 0x8c, 0x80, 0x86, 0x5d, 0xd7, 0xa4, 0x52, 0xb1, 0xd9, 0xa6, 0x04, 0x4e,
+        0xb3, 0x2d, 0x1f, 0xb8, 0x35, 0xcc, 0x45, 0x6d, 0x9c, 0x20, 0xa7, 0xa4, 0x34, 0x59, 0x72,
+        0xe3, 0xae, 0xba, 0x49, 0xde, 0xd1, 0xaa, 0xee, 0x3d, 0x77, 0xfc, 0x5d, 0xc6, 0x1f, 0x9d,
+        0xac, 0xc2, 0x15, 0x66, 0xb8, 0xe1, 0x54, 0x4e, 0x74, 0x93, 0xdb, 0x9a, 0x24, 0x15, 0x6e,
+        0x20, 0xa3, 0x67, 0x3e, 0x5a, 0x24, 0x41, 0x5e, 0xb0, 0xe6, 0x35, 0x87, 0x1b, 0xc8, 0x7a,
+        0xf9, 0x77, 0x65, 0xe0, 0x01, 0xf2, 0x4c, 0xe4, 0x2b, 0xa9, 0x64, 0x96, 0x96, 0x0b, 0x46,
+        0xca, 0xea, 0x79, 0x0e, 0x78, 0xa3, 0x5f, 0x43, 0xfc, 0x47, 0x6a, 0x12, 0xfa, 0xc4, 0x33,
+        0x0e, 0x88, 0x1c, 0x19, 0x3a, 0x00, 0xc3, 0x4e, 0xb5, 0xd8, 0xfa, 0x8e, 0xf1, 0xbc, 0x3d,
+        0xb2, 0x7e, 0x50, 0x8d, 0x67, 0xc3, 0x6b, 0xed, 0xe2, 0xea, 0xa6, 0x1f, 0x25, 0x24, 0x7c,
+        0x94, 0x74, 0x50, 0x49, 0xe3, 0xc6, 0x58, 0x2e, 0xfd, 0x28, 0xb4, 0xc6, 0x73, 0xb1, 0x53,
+        0x74, 0x27, 0x94, 0x5c, 0xdf, 0x69, 0xb7, 0xa1, 0xd7, 0xf5, 0xd3, 0x8a, 0x2c, 0x2d, 0xb4,
+        0x5e, 0x8a, 0x16, 0x14, 0x54, 0x64, 0x6e, 0x00, 0x6b, 0x11, 0x59, 0x8a, 0x63, 0x38, 0x80,
+        0x76, 0xc3, 0xd5, 0x59, 0xf7, 0x3f, 0xd2, 0xfa, 0xa5, 0xca, 0x82, 0xff, 0x4a, 0x62, 0xf0,
+        0xe3, 0x42, 0xf9, 0x3b, 0x38, 0x27, 0x8a, 0x89, 0xaa, 0x50, 0x55, 0x4b, 0x29, 0xf1, 0x46,
+        0x7c, 0x75, 0xef, 0x65, 0xaf, 0x9b, 0x0d, 0x6d, 0xda, 0x25, 0x94, 0x14, 0xc1, 0x1b, 0xf0,
+        0xc5, 0x4c, 0x24, 0x0e, 0x65,
+};
+
+const uint8_t kOutRefBinaryBuffer[] = {
+        0x00, 0x00, 0x00, 0x01, 0x09, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0xc0, 0x1e, 0xdb,
+        0x01, 0x40, 0x16, 0xec, 0x04, 0x40, 0x00, 0x00, 0x03, 0x00, 0x40, 0x00, 0x00, 0x0f, 0x03,
+        0xc5, 0x8b, 0xb8, 0x00, 0x00, 0x00, 0x01, 0x68, 0xca, 0x8c, 0xb2, 0x00, 0x00, 0x01, 0x06,
+        0x05, 0xff, 0xff, 0x70, 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7, 0x96, 0x2c, 0xd8,
+        0x20, 0xd9, 0x23, 0xee, 0xef, 0x78, 0x32, 0x36, 0x34, 0x20, 0x2d, 0x20, 0x63, 0x6f, 0x72,
+        0x65, 0x20, 0x31, 0x34, 0x32, 0x20, 0x2d, 0x20, 0x48, 0x2e, 0x32, 0x36, 0x34, 0x2f, 0x4d,
+        0x50, 0x45, 0x47, 0x2d, 0x34, 0x20, 0x41, 0x56, 0x43, 0x20, 0x63, 0x6f, 0x64, 0x65, 0x63,
+        0x20, 0x2d, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x6c, 0x65, 0x66, 0x74, 0x20, 0x32, 0x30, 0x30,
+        0x33, 0x2d, 0x32, 0x30, 0x31, 0x34, 0x20, 0x2d, 0x20, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f,
+        0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6c, 0x61, 0x6e, 0x2e, 0x6f,
+        0x72, 0x67, 0x2f, 0x78, 0x32, 0x36, 0x34, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x20, 0x2d, 0x20,
+        0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3a, 0x20, 0x63, 0x61, 0x62, 0x61, 0x63, 0x3d,
+        0x30, 0x20, 0x72, 0x65, 0x66, 0x3d, 0x32, 0x20, 0x64, 0x65, 0x62, 0x6c, 0x6f, 0x63, 0x6b,
+        0x3d, 0x31, 0x3a, 0x30, 0x3a, 0x30, 0x20, 0x61, 0x6e, 0x61, 0x6c, 0x79, 0x73, 0x65, 0x3d,
+        0x30, 0x78, 0x31, 0x3a, 0x30, 0x78, 0x31, 0x31, 0x31, 0x20, 0x6d, 0x65, 0x3d, 0x68, 0x65,
+        0x78, 0x20, 0x73, 0x75, 0x62, 0x6d, 0x65, 0x3d, 0x37, 0x20, 0x70, 0x73, 0x79, 0x3d, 0x31,
+        0x20, 0x70, 0x73, 0x79, 0x5f, 0x72, 0x64, 0x3d, 0x31, 0x2e, 0x30, 0x30, 0x3a, 0x30, 0x2e,
+        0x30, 0x30, 0x20, 0x6d, 0x69, 0x78, 0x65, 0x64, 0x5f, 0x72, 0x65, 0x66, 0x3d, 0x31, 0x20,
+        0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x3d, 0x31, 0x36, 0x20, 0x63, 0x68, 0x72,
+        0x6f, 0x6d, 0x61, 0x5f, 0x6d, 0x65, 0x3d, 0x31, 0x20, 0x74, 0x72, 0x65, 0x6c, 0x6c, 0x69,
+        0x73, 0x3d, 0x31, 0x20, 0x38, 0x78, 0x38, 0x64, 0x63, 0x74, 0x3d, 0x30, 0x20, 0x63, 0x71,
+        0x6d, 0x3d, 0x30, 0x20, 0x64, 0x65, 0x61, 0x64, 0x7a, 0x6f, 0x6e, 0x65, 0x3d, 0x32, 0x31,
+        0x2c, 0x31, 0x31, 0x20, 0x66, 0x61, 0x73, 0x74, 0x5f, 0x70, 0x73, 0x6b, 0x69, 0x70, 0x3d,
+        0x31, 0x20, 0x63, 0x68, 0x72, 0x6f, 0x6d, 0x61, 0x5f, 0x71, 0x70, 0x5f, 0x6f, 0x66, 0x66,
+        0x73, 0x65, 0x74, 0x3d, 0x2d, 0x32, 0x20, 0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x73, 0x3d,
+        0x36, 0x30, 0x20, 0x6c, 0x6f, 0x6f, 0x6b, 0x61, 0x68, 0x65, 0x61, 0x64, 0x5f, 0x74, 0x68,
+        0x72, 0x65, 0x61, 0x64, 0x73, 0x3d, 0x35, 0x20, 0x73, 0x6c, 0x69, 0x63, 0x65, 0x64, 0x5f,
+        0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x73, 0x3d, 0x30, 0x20, 0x6e, 0x72, 0x3d, 0x30, 0x20,
+        0x64, 0x65, 0x63, 0x69, 0x6d, 0x61, 0x74, 0x65, 0x3d, 0x31, 0x20, 0x69, 0x6e, 0x74, 0x65,
+        0x72, 0x6c, 0x61, 0x63, 0x65, 0x64, 0x3d, 0x30, 0x20, 0x62, 0x6c, 0x75, 0x72, 0x61, 0x79,
+        0x5f, 0x63, 0x6f, 0x6d, 0x70, 0x61, 0x74, 0x3d, 0x30, 0x20, 0x63, 0x6f, 0x6e, 0x73, 0x74,
+        0x72, 0x61, 0x69, 0x6e, 0x65, 0x64, 0x5f, 0x69, 0x6e, 0x74, 0x72, 0x61, 0x3d, 0x30, 0x20,
+        0x62, 0x66, 0x72, 0x61, 0x6d, 0x65, 0x73, 0x3d, 0x30, 0x20, 0x77, 0x65, 0x69, 0x67, 0x68,
+        0x74, 0x70, 0x3d, 0x30, 0x20, 0x6b, 0x65, 0x79, 0x69, 0x6e, 0x74, 0x3d, 0x32, 0x35, 0x30,
+        0x20, 0x6b, 0x65, 0x79, 0x69, 0x6e, 0x74, 0x5f, 0x6d, 0x69, 0x6e, 0x3d, 0x32, 0x35, 0x20,
+        0x73, 0x63, 0x65, 0x6e, 0x65,
+};
+
+class MediaCasListener : public ICasListener {
+  public:
+    virtual Return<void> onEvent(int32_t event, int32_t arg,
+                                 const hidl_vec<uint8_t>& data) override {
+        android::Mutex::Autolock autoLock(mMsgLock);
+        mEvent = event;
+        mEventArg = arg;
+        mEventData = data;
+
+        mEventReceived = true;
+        mMsgCondition.signal();
+        return Void();
+    }
+
+    virtual Return<void> onSessionEvent(const hidl_vec<uint8_t>& sessionId, int32_t event,
+                                        int32_t arg, const hidl_vec<uint8_t>& data) override {
+        android::Mutex::Autolock autoLock(mMsgLock);
+        mSessionId = sessionId;
+        mEvent = event;
+        mEventArg = arg;
+        mEventData = data;
+
+        mEventReceived = true;
+        mMsgCondition.signal();
+        return Void();
+    }
+
+    void testEventEcho(sp<ICas>& mediaCas, int32_t& event, int32_t& eventArg,
+                       hidl_vec<uint8_t>& eventData);
+
+    void testSessionEventEcho(sp<ICas>& mediaCas, const hidl_vec<uint8_t>& sessionId,
+                              int32_t& event, int32_t& eventArg, hidl_vec<uint8_t>& eventData);
+
+  private:
+    int32_t mEvent = -1;
+    int32_t mEventArg = -1;
+    bool mEventReceived = false;
+    hidl_vec<uint8_t> mEventData;
+    hidl_vec<uint8_t> mSessionId;
+    android::Mutex mMsgLock;
+    android::Condition mMsgCondition;
+};
+
+void MediaCasListener::testEventEcho(sp<ICas>& mediaCas, int32_t& event, int32_t& eventArg,
+                                     hidl_vec<uint8_t>& eventData) {
+    mEventReceived = false;
+    auto returnStatus = mediaCas->sendEvent(event, eventArg, eventData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    android::Mutex::Autolock autoLock(mMsgLock);
+    while (!mEventReceived) {
+        if (-ETIMEDOUT == mMsgCondition.waitRelative(mMsgLock, WAIT_TIMEOUT)) {
+            EXPECT_TRUE(false) << "event not received within timeout";
+            return;
+        }
+    }
+
+    EXPECT_EQ(mEvent, event);
+    EXPECT_EQ(mEventArg, eventArg);
+    EXPECT_TRUE(mEventData == eventData);
+}
+
+void MediaCasListener::testSessionEventEcho(sp<ICas>& mediaCas, const hidl_vec<uint8_t>& sessionId,
+                                            int32_t& event, int32_t& eventArg,
+                                            hidl_vec<uint8_t>& eventData) {
+    mEventReceived = false;
+    auto returnStatus = mediaCas->sendSessionEvent(sessionId, event, eventArg, eventData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    android::Mutex::Autolock autoLock(mMsgLock);
+    while (!mEventReceived) {
+        if (-ETIMEDOUT == mMsgCondition.waitRelative(mMsgLock, WAIT_TIMEOUT)) {
+            EXPECT_TRUE(false) << "event not received within timeout";
+            return;
+        }
+    }
+
+    EXPECT_TRUE(mSessionId == sessionId);
+    EXPECT_EQ(mEvent, event);
+    EXPECT_EQ(mEventArg, eventArg);
+    EXPECT_TRUE(mEventData == eventData);
+}
+
+// Test environment for Cas HIDL HAL.
+class CasHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+  public:
+    // get the test environment singleton
+    static CasHidlEnvironment* Instance() {
+        static CasHidlEnvironment* instance = new CasHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IMediaCasService>(); }
+};
+
+class MediaCasHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+  public:
+    virtual void SetUp() override {
+        mService = ::testing::VtsHalHidlTargetTestBase::getService<IMediaCasService>(
+                CasHidlEnvironment::Instance()->getServiceName<IMediaCasService>());
+        ASSERT_NE(mService, nullptr);
+    }
+
+    sp<IMediaCasService> mService;
+
+  protected:
+    static void description(const std::string& description) {
+        RecordProperty("description", description);
+    }
+
+    sp<ICas> mMediaCas;
+    sp<IDescramblerBase> mDescramblerBase;
+    sp<MediaCasListener> mCasListener;
+    typedef struct _OobInputTestParams {
+        const SubSample* subSamples;
+        uint32_t numSubSamples;
+        size_t imemSizeActual;
+        uint64_t imemOffset;
+        uint64_t imemSize;
+        uint64_t srcOffset;
+        uint64_t dstOffset;
+    } OobInputTestParams;
+
+    ::testing::AssertionResult createCasPlugin(int32_t caSystemId);
+    ::testing::AssertionResult openCasSession(std::vector<uint8_t>* sessionId);
+    ::testing::AssertionResult descrambleTestInputBuffer(const sp<IDescrambler>& descrambler,
+                                                         Status* descrambleStatus,
+                                                         sp<IMemory>* hidlInMemory);
+    ::testing::AssertionResult descrambleTestOobInput(const sp<IDescrambler>& descrambler,
+                                                      Status* descrambleStatus,
+                                                      const OobInputTestParams& params);
+};
+
+::testing::AssertionResult MediaCasHidlTest::createCasPlugin(int32_t caSystemId) {
+    auto status = mService->isSystemIdSupported(caSystemId);
+    if (!status.isOk() || !status) {
+        return ::testing::AssertionFailure();
+    }
+    status = mService->isDescramblerSupported(caSystemId);
+    if (!status.isOk() || !status) {
+        return ::testing::AssertionFailure();
+    }
+
+    mCasListener = new MediaCasListener();
+    auto pluginStatus = mService->createPluginExt(caSystemId, mCasListener);
+    if (!pluginStatus.isOk()) {
+        return ::testing::AssertionFailure();
+    }
+    mMediaCas = pluginStatus;
+    if (mMediaCas == nullptr) {
+        return ::testing::AssertionFailure();
+    }
+
+    auto descramblerStatus = mService->createDescrambler(caSystemId);
+    if (!descramblerStatus.isOk()) {
+        return ::testing::AssertionFailure();
+    }
+    mDescramblerBase = descramblerStatus;
+    return ::testing::AssertionResult(mDescramblerBase != nullptr);
+}
+
+::testing::AssertionResult MediaCasHidlTest::openCasSession(std::vector<uint8_t>* sessionId) {
+    Status sessionStatus;
+    auto returnVoid = mMediaCas->openSession([&](Status status, const hidl_vec<uint8_t>& id) {
+        sessionStatus = status;
+        *sessionId = id;
+    });
+    return ::testing::AssertionResult(returnVoid.isOk() && (Status::OK == sessionStatus));
+}
+
+::testing::AssertionResult MediaCasHidlTest::descrambleTestInputBuffer(
+        const sp<IDescrambler>& descrambler, Status* descrambleStatus, sp<IMemory>* inMemory) {
+    hidl_vec<SubSample> hidlSubSamples;
+    hidlSubSamples.setToExternal(const_cast<SubSample*>(kSubSamples),
+                                 (sizeof(kSubSamples) / sizeof(SubSample)), false /*own*/);
+
+    sp<MemoryDealer> dealer = new MemoryDealer(sizeof(kInBinaryBuffer), "vts-cas");
+    if (nullptr == dealer.get()) {
+        ALOGE("couldn't get MemoryDealer!");
+        return ::testing::AssertionFailure();
+    }
+
+    sp<IMemory> mem = dealer->allocate(sizeof(kInBinaryBuffer));
+    if (nullptr == mem.get()) {
+        ALOGE("couldn't allocate IMemory!");
+        return ::testing::AssertionFailure();
+    }
+    *inMemory = mem;
+
+    // build HidlMemory from memory heap
+    ssize_t offset;
+    size_t size;
+    sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+    if (nullptr == heap.get()) {
+        ALOGE("couldn't get memory heap!");
+        return ::testing::AssertionFailure();
+    }
+
+    uint8_t* ipBuffer = static_cast<uint8_t*>(static_cast<void*>(mem->pointer()));
+    memcpy(ipBuffer, kInBinaryBuffer, sizeof(kInBinaryBuffer));
+
+    // hidlMemory is not to be passed out of scope!
+    sp<HidlMemory> hidlMemory = fromHeap(heap);
+
+    SharedBuffer srcBuffer = {
+            .heapBase = *hidlMemory, .offset = (uint64_t)offset, .size = (uint64_t)size};
+
+    DestinationBuffer dstBuffer;
+    dstBuffer.type = BufferType::SHARED_MEMORY;
+    dstBuffer.nonsecureMemory = srcBuffer;
+
+    uint32_t outBytes;
+    hidl_string detailedError;
+    auto returnVoid = descrambler->descramble(
+            ScramblingControl::EVENKEY /*2*/, hidlSubSamples, srcBuffer, 0, dstBuffer, 0,
+            [&](Status status, uint32_t bytesWritten, const hidl_string& detailedErr) {
+                *descrambleStatus = status;
+                outBytes = bytesWritten;
+                detailedError = detailedErr;
+            });
+    if (!returnVoid.isOk() || *descrambleStatus != Status::OK) {
+        ALOGI("descramble failed, trans=%s, status=%d, outBytes=%u, error=%s",
+              returnVoid.description().c_str(), *descrambleStatus, outBytes, detailedError.c_str());
+    }
+    return ::testing::AssertionResult(returnVoid.isOk());
+}
+
+::testing::AssertionResult MediaCasHidlTest::descrambleTestOobInput(
+        const sp<IDescrambler>& descrambler, Status* descrambleStatus,
+        const OobInputTestParams& params) {
+    hidl_vec<SubSample> hidlSubSamples;
+    hidlSubSamples.setToExternal(const_cast<SubSample*>(params.subSamples), params.numSubSamples,
+                                 false /*own*/);
+
+    sp<MemoryDealer> dealer = new MemoryDealer(params.imemSizeActual, "vts-cas");
+    if (nullptr == dealer.get()) {
+        ALOGE("couldn't get MemoryDealer!");
+        return ::testing::AssertionFailure();
+    }
+
+    sp<IMemory> mem = dealer->allocate(params.imemSizeActual);
+    if (nullptr == mem.get()) {
+        ALOGE("couldn't allocate IMemory!");
+        return ::testing::AssertionFailure();
+    }
+
+    // build HidlMemory from memory heap
+    ssize_t offset;
+    size_t size;
+    sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+    if (nullptr == heap.get()) {
+        ALOGE("couldn't get memory heap!");
+        return ::testing::AssertionFailure();
+    }
+
+    // hidlMemory is not to be passed out of scope!
+    sp<HidlMemory> hidlMemory = fromHeap(heap);
+
+    SharedBuffer srcBuffer = {
+            .heapBase = *hidlMemory,
+            .offset = (uint64_t)offset + params.imemOffset,
+            .size = (uint64_t)params.imemSize,
+    };
+
+    DestinationBuffer dstBuffer;
+    dstBuffer.type = BufferType::SHARED_MEMORY;
+    dstBuffer.nonsecureMemory = srcBuffer;
+
+    uint32_t outBytes;
+    hidl_string detailedError;
+    auto returnVoid = descrambler->descramble(
+            ScramblingControl::EVENKEY /*2*/, hidlSubSamples, srcBuffer, params.srcOffset,
+            dstBuffer, params.dstOffset,
+            [&](Status status, uint32_t bytesWritten, const hidl_string& detailedErr) {
+                *descrambleStatus = status;
+                outBytes = bytesWritten;
+                detailedError = detailedErr;
+            });
+    if (!returnVoid.isOk() || *descrambleStatus != Status::OK) {
+        ALOGI("descramble failed, trans=%s, status=%d, outBytes=%u, error=%s",
+              returnVoid.description().c_str(), *descrambleStatus, outBytes, detailedError.c_str());
+    }
+    return ::testing::AssertionResult(returnVoid.isOk());
+}
+
+TEST_F(MediaCasHidlTest, TestClearKeyApisWithSession) {
+    description("Test that valid call sequences with SessionEvent send and receive");
+
+    ASSERT_TRUE(createCasPlugin(CLEAR_KEY_SYSTEM_ID));
+
+    auto returnStatus = mMediaCas->provision(hidl_string(PROVISION_STR));
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    hidl_vec<uint8_t> hidlPvtData;
+    hidlPvtData.resize(256);
+    returnStatus = mMediaCas->setPrivateData(hidlPvtData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    std::vector<uint8_t> sessionId;
+    ASSERT_TRUE(openCasSession(&sessionId));
+    returnStatus = mMediaCas->setSessionPrivateData(sessionId, hidlPvtData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    std::vector<uint8_t> streamSessionId;
+    ASSERT_TRUE(openCasSession(&streamSessionId));
+    returnStatus = mMediaCas->setSessionPrivateData(streamSessionId, hidlPvtData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    hidl_vec<uint8_t> hidlNullPtr;
+    hidlNullPtr.setToExternal(static_cast<uint8_t*>(nullptr), 0);
+    returnStatus = mMediaCas->refreshEntitlements(3, hidlNullPtr);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    uint8_t refreshData[] = {0, 1, 2, 3};
+    hidl_vec<uint8_t> hidlRefreshData;
+    hidlRefreshData.setToExternal(static_cast<uint8_t*>(refreshData), sizeof(refreshData));
+    returnStatus = mMediaCas->refreshEntitlements(10, hidlRefreshData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    int32_t eventID = 1;
+    int32_t eventArg = 2;
+    mCasListener->testEventEcho(mMediaCas, eventID, eventArg, hidlNullPtr);
+    mCasListener->testSessionEventEcho(mMediaCas, sessionId, eventID, eventArg, hidlNullPtr);
+
+    eventID = 3;
+    eventArg = 4;
+    uint8_t eventData[] = {'e', 'v', 'e', 'n', 't', 'd', 'a', 't', 'a'};
+    hidl_vec<uint8_t> hidlEventData;
+    hidlEventData.setToExternal(static_cast<uint8_t*>(eventData), sizeof(eventData));
+    mCasListener->testEventEcho(mMediaCas, eventID, eventArg, hidlEventData);
+    mCasListener->testSessionEventEcho(mMediaCas, sessionId, eventID, eventArg, hidlEventData);
+
+    uint8_t clearKeyEmmData[] = {'c', 'l', 'e', 'a', 'r', 'k', 'e', 'y', 'e', 'm', 'm'};
+    hidl_vec<uint8_t> hidlClearKeyEmm;
+    hidlClearKeyEmm.setToExternal(static_cast<uint8_t*>(clearKeyEmmData), sizeof(clearKeyEmmData));
+    returnStatus = mMediaCas->processEmm(hidlClearKeyEmm);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    hidl_vec<uint8_t> hidlEcm;
+    hidlEcm.setToExternal(const_cast<uint8_t*>(kEcmBinaryBuffer), sizeof(kEcmBinaryBuffer));
+    returnStatus = mMediaCas->processEcm(sessionId, hidlEcm);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+    returnStatus = mMediaCas->processEcm(streamSessionId, hidlEcm);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
+
+    sp<IDescrambler> descrambler;
+    descrambler = IDescrambler::castFrom(mDescramblerBase);
+    ASSERT_NE(descrambler, nullptr);
+
+    Status descrambleStatus = Status::OK;
+    sp<IMemory> dataMemory;
+
+    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+    EXPECT_EQ(Status::OK, descrambleStatus);
+
+    ASSERT_NE(nullptr, dataMemory.get());
+    uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->pointer()));
+
+    int compareResult =
+            memcmp(static_cast<const void*>(opBuffer),
+                   static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
+    EXPECT_EQ(0, compareResult);
+
+    returnStatus = mDescramblerBase->release();
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    returnStatus = mMediaCas->release();
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+}
+
+}  // anonymous namespace
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(CasHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    CasHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/compatibility_matrices/compatibility_matrix.3.xml b/compatibility_matrices/compatibility_matrix.3.xml
index e13d293..4cb3776 100644
--- a/compatibility_matrices/compatibility_matrix.3.xml
+++ b/compatibility_matrices/compatibility_matrix.3.xml
@@ -193,7 +193,7 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.graphics.composer</name>
-        <version>2.1-2</version>
+        <version>2.1-3</version>
         <interface>
             <name>IComposer</name>
             <instance>default</instance>
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 32e1695..244d7a0 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -9,7 +9,7 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.audio</name>
-        <version>4.0</version>
+        <version>5.0</version>
         <interface>
             <name>IDevicesFactory</name>
             <instance>default</instance>
@@ -17,7 +17,7 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.audio.effect</name>
-        <version>4.0</version>
+        <version>5.0</version>
         <interface>
             <name>IEffectsFactory</name>
             <instance>default</instance>
@@ -56,6 +56,14 @@
         </interface>
     </hal>
     <hal format="hidl" optional="true">
+        <name>android.hardware.biometrics.face</name>
+        <version>1.0</version>
+        <interface>
+            <name>IBiometricsFace</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="true">
         <name>android.hardware.biometrics.fingerprint</name>
         <version>2.1</version>
         <interface>
@@ -105,7 +113,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.camera.provider</name>
-        <version>2.4</version>
+        <version>2.4-5</version>
         <interface>
             <name>ICameraProvider</name>
             <regex-instance>[^/]+/[0-9]+</regex-instance>
@@ -113,7 +121,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.cas</name>
-        <version>1.0</version>
+        <version>1.1</version>
         <interface>
             <name>IMediaCasService</name>
             <instance>default</instance>
@@ -121,7 +129,7 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.configstore</name>
-        <version>1.1</version>
+        <version>1.2</version>
         <interface>
             <name>ISurfaceFlingerConfigs</name>
             <instance>default</instance>
@@ -145,19 +153,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.drm</name>
-        <version>1.0</version>
-        <interface>
-            <name>ICryptoFactory</name>
-            <regex-instance>.*</regex-instance>
-        </interface>
-        <interface>
-            <name>IDrmFactory</name>
-            <regex-instance>.*</regex-instance>
-        </interface>
-    </hal>
-    <hal format="hidl" optional="false">
-        <name>android.hardware.drm</name>
-        <version>1.1</version>
+        <version>1.0-2</version>
         <interface>
             <name>ICryptoFactory</name>
             <regex-instance>.*</regex-instance>
@@ -186,6 +182,7 @@
     <hal format="hidl" optional="true">
         <name>android.hardware.gnss</name>
         <version>1.0-1</version>
+        <version>2.0</version>
         <interface>
             <name>IGnss</name>
             <instance>default</instance>
@@ -194,6 +191,7 @@
     <hal format="hidl" optional="false">
         <name>android.hardware.graphics.allocator</name>
         <version>2.0</version>
+        <version>3.0</version>
         <interface>
             <name>IAllocator</name>
             <instance>default</instance>
@@ -201,7 +199,7 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.graphics.composer</name>
-        <version>2.1</version>
+        <version>2.1-3</version>
         <interface>
             <name>IComposer</name>
             <instance>default</instance>
@@ -209,7 +207,8 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.graphics.mapper</name>
-        <version>2.0</version>
+        <version>2.0-1</version>
+        <version>3.0</version>
         <interface>
             <name>IMapper</name>
             <instance>default</instance>
@@ -224,16 +223,28 @@
         </interface>
     </hal>
     <hal format="hidl" optional="true">
-        <name>android.hardware.health.filesystem</name>
+        <name>android.hardware.health.storage</name>
         <version>1.0</version>
         <interface>
-            <name>IFileSystem</name>
+            <name>IStorage</name>
             <instance>default</instance>
         </interface>
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.ir</name>
         <version>1.0</version>
+        <interface>
+            <name>IConsumerIr</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="true">
+        <name>android.hardware.input.classifier</name>
+        <version>1.0</version>
+        <interface>
+            <name>IInputClassifier</name>
+            <instance>default</instance>
+        </interface>
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.keymaster</name>
@@ -363,6 +374,7 @@
     <hal format="hidl" optional="true">
         <name>android.hardware.sensors</name>
         <version>1.0</version>
+        <version>2.0</version>
         <interface>
             <name>ISensors</name>
             <instance>default</instance>
@@ -370,7 +382,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.soundtrigger</name>
-        <version>2.0-1</version>
+        <version>2.0-2</version>
         <interface>
             <name>ISoundTriggerHw</name>
             <instance>default</instance>
@@ -395,6 +407,7 @@
     <hal format="hidl" optional="true">
         <name>android.hardware.thermal</name>
         <version>1.0-1</version>
+        <version>2.0</version>
         <interface>
             <name>IThermal</name>
             <instance>default</instance>
@@ -418,7 +431,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.usb</name>
-        <version>1.0-1</version>
+        <version>1.0-2</version>
         <interface>
             <name>IUsb</name>
             <instance>default</instance>
@@ -434,7 +447,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.vibrator</name>
-        <version>1.0-2</version>
+        <version>1.0-3</version>
         <interface>
             <name>IVibrator</name>
             <instance>default</instance>
@@ -458,7 +471,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.wifi</name>
-        <version>1.0-2</version>
+        <version>1.0-3</version>
         <interface>
             <name>IWifi</name>
             <instance>default</instance>
@@ -466,7 +479,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.wifi.hostapd</name>
-        <version>1.0</version>
+        <version>1.0-1</version>
         <interface>
             <name>IHostapd</name>
             <instance>default</instance>
@@ -482,7 +495,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.wifi.supplicant</name>
-        <version>1.0-1</version>
+        <version>1.0-2</version>
         <interface>
             <name>ISupplicant</name>
             <instance>default</instance>
diff --git a/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp b/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
index a1676be..70b5830 100644
--- a/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
+++ b/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
@@ -131,6 +131,27 @@
     }
 }
 
+/**
+ * Make sure the constrains of hasWideColorDisplay, hasHDRDisplay
+ * are enforced.
+ */
+TEST_F(ConfigstoreHidlTest, TestColorConstrainsBasic) {
+    bool hasWideColorDisplay;
+    bool hasHDRDisplay;
+
+    Return<void> status = sfConfigs->hasWideColorDisplay(
+        [&](OptionalBool arg) { hasWideColorDisplay = arg.specified; });
+    EXPECT_OK(status);
+
+    status = sfConfigs->hasHDRDisplay([&](OptionalBool arg) { hasHDRDisplay = arg.specified; });
+    EXPECT_OK(status);
+
+    // When hasHDRDisplay returns true, hasWideColorDisplay must also return true.
+    if (hasHDRDisplay) {
+        ASSERT_TRUE(hasWideColorDisplay);
+    }
+}
+
 int main(int argc, char** argv) {
     ::testing::AddGlobalTestEnvironment(ConfigstoreHidlEnvironment::Instance());
     ::testing::InitGoogleTest(&argc, argv);
diff --git a/configstore/1.1/default/Android.mk b/configstore/1.1/default/Android.mk
deleted file mode 100644
index 40f621b..0000000
--- a/configstore/1.1/default/Android.mk
+++ /dev/null
@@ -1,38 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.configstore@1.1-service
-# seccomp is not required for coverage build.
-ifneq ($(NATIVE_COVERAGE),true)
-LOCAL_REQUIRED_MODULES_arm64 := configstore@1.1.policy
-endif
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_MODULE_CLASS := EXECUTABLES
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_INIT_RC := android.hardware.configstore@1.1-service.rc
-LOCAL_SRC_FILES:= service.cpp
-
-include $(LOCAL_PATH)/surfaceflinger.mk
-
-LOCAL_SHARED_LIBRARIES := \
-    libhidlbase \
-    libhidltransport \
-    libbase \
-    libhwminijail \
-    liblog \
-    libutils \
-    android.hardware.configstore@1.0 \
-    android.hardware.configstore@1.1
-
-include $(BUILD_EXECUTABLE)
-
-# seccomp filter for configstore
-ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm64))
-include $(CLEAR_VARS)
-LOCAL_MODULE := configstore@1.1.policy
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/etc/seccomp_policy
-LOCAL_SRC_FILES := seccomp_policy/configstore@1.1-$(TARGET_ARCH).policy
-include $(BUILD_PREBUILT)
-endif
diff --git a/configstore/1.1/default/SurfaceFlingerConfigs.cpp b/configstore/1.1/default/SurfaceFlingerConfigs.cpp
deleted file mode 100644
index da3081c..0000000
--- a/configstore/1.1/default/SurfaceFlingerConfigs.cpp
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.1 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.1
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "SurfaceFlingerConfigs.h"
-
-#include <android/hardware/configstore/1.1/types.h>
-#include <log/log.h>
-
-namespace android {
-namespace hardware {
-namespace configstore {
-namespace V1_1 {
-namespace implementation {
-
-// Methods from ::android::hardware::configstore::V1_0::ISurfaceFlingerConfigs
-// follow.
-Return<void> SurfaceFlingerConfigs::vsyncEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) {
-#ifdef VSYNC_EVENT_PHASE_OFFSET_NS
-    _hidl_cb({true, VSYNC_EVENT_PHASE_OFFSET_NS});
-#else
-    _hidl_cb({false, 0});
-#endif
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::vsyncSfEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) {
-#ifdef SF_VSYNC_EVENT_PHASE_OFFSET_NS
-    _hidl_cb({true, SF_VSYNC_EVENT_PHASE_OFFSET_NS});
-#else
-    _hidl_cb({false, 0});
-#endif
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::useContextPriority(useContextPriority_cb _hidl_cb) {
-#ifdef USE_CONTEXT_PRIORITY
-    _hidl_cb({true, USE_CONTEXT_PRIORITY});
-#else
-    _hidl_cb({false, false});
-#endif
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::maxFrameBufferAcquiredBuffers(
-    maxFrameBufferAcquiredBuffers_cb _hidl_cb) {
-#ifdef NUM_FRAMEBUFFER_SURFACE_BUFFERS
-    _hidl_cb({true, NUM_FRAMEBUFFER_SURFACE_BUFFERS});
-#else
-    _hidl_cb({false, 0});
-#endif
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::hasWideColorDisplay(hasWideColorDisplay_cb _hidl_cb) {
-    bool value = false;
-#ifdef HAS_WIDE_COLOR_DISPLAY
-    value = true;
-#endif
-    _hidl_cb({true, value});
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::hasSyncFramework(hasSyncFramework_cb _hidl_cb) {
-    bool value = true;
-#ifdef RUNNING_WITHOUT_SYNC_FRAMEWORK
-    value = false;
-#endif
-    _hidl_cb({true, value});
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::hasHDRDisplay(hasHDRDisplay_cb _hidl_cb) {
-    bool value = false;
-#ifdef HAS_HDR_DISPLAY
-    value = true;
-#endif
-    _hidl_cb({true, value});
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::presentTimeOffsetFromVSyncNs(
-    presentTimeOffsetFromVSyncNs_cb _hidl_cb) {
-#ifdef PRESENT_TIME_OFFSET_FROM_VSYNC_NS
-    _hidl_cb({true, PRESENT_TIME_OFFSET_FROM_VSYNC_NS});
-#else
-    _hidl_cb({false, 0});
-#endif
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::useHwcForRGBtoYUV(useHwcForRGBtoYUV_cb _hidl_cb) {
-    bool value = false;
-#ifdef FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS
-    value = true;
-#endif
-    _hidl_cb({true, value});
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::maxVirtualDisplaySize(maxVirtualDisplaySize_cb _hidl_cb) {
-    uint64_t maxSize = 0;
-#ifdef MAX_VIRTUAL_DISPLAY_DIMENSION
-    maxSize = MAX_VIRTUAL_DISPLAY_DIMENSION;
-    _hidl_cb({true, maxSize});
-#else
-    _hidl_cb({false, maxSize});
-#endif
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::useVrFlinger(useVrFlinger_cb _hidl_cb) {
-    bool value = false;
-    bool specified = false;
-#ifdef USE_VR_FLINGER
-    value = true;
-    specified = true;
-#endif
-    _hidl_cb({specified, value});
-    return Void();
-}
-
-Return<void> SurfaceFlingerConfigs::startGraphicsAllocatorService(
-    startGraphicsAllocatorService_cb _hidl_cb) {
-    bool value = false;
-#ifdef START_GRAPHICS_ALLOCATOR_SERVICE
-    value = true;
-#endif
-    _hidl_cb({true, value});
-    return Void();
-}
-
-// Methods from ::android::hardware::configstore::V1_1::ISurfaceFlingerConfigs
-// follow.
-
-#ifdef PRIMARY_DISPLAY_ORIENTATION
-static_assert(PRIMARY_DISPLAY_ORIENTATION == 0 || PRIMARY_DISPLAY_ORIENTATION == 90 ||
-                  PRIMARY_DISPLAY_ORIENTATION == 180 || PRIMARY_DISPLAY_ORIENTATION == 270,
-              "Primary display orientation must be 0/90/180/270");
-#endif
-
-Return<void> SurfaceFlingerConfigs::primaryDisplayOrientation(
-    primaryDisplayOrientation_cb _hidl_cb) {
-    using ::android::hardware::configstore::V1_1::DisplayOrientation;
-
-    bool specified = false;
-    DisplayOrientation value = DisplayOrientation::ORIENTATION_0;
-
-    int orientation = 0;
-#ifdef PRIMARY_DISPLAY_ORIENTATION
-    specified = true;
-    orientation = PRIMARY_DISPLAY_ORIENTATION;
-#endif
-
-    switch (orientation) {
-        case 0: {
-            value = DisplayOrientation::ORIENTATION_0;
-            break;
-        }
-        case 90: {
-            value = DisplayOrientation::ORIENTATION_90;
-            break;
-        }
-        case 180: {
-            value = DisplayOrientation::ORIENTATION_180;
-            break;
-        }
-        case 270: {
-            value = DisplayOrientation::ORIENTATION_270;
-            break;
-        }
-        default: {
-            // statically checked above -> memory corruption
-            LOG_ALWAYS_FATAL("Invalid orientation %d", orientation);
-        }
-    }
-
-    _hidl_cb({specified, value});
-    return Void();
-}
-
-// Methods from ::android::hidl::base::V1_0::IBase follow.
-
-}  // namespace implementation
-}  // namespace V1_1
-}  // namespace configstore
-}  // namespace hardware
-}  // namespace android
diff --git a/configstore/1.1/default/SurfaceFlingerConfigs.h b/configstore/1.1/default/SurfaceFlingerConfigs.h
deleted file mode 100644
index 3714e81..0000000
--- a/configstore/1.1/default/SurfaceFlingerConfigs.h
+++ /dev/null
@@ -1,48 +0,0 @@
-#ifndef ANDROID_HARDWARE_CONFIGSTORE_V1_1_SURFACEFLINGERCONFIGS_H
-#define ANDROID_HARDWARE_CONFIGSTORE_V1_1_SURFACEFLINGERCONFIGS_H
-
-#include <android/hardware/configstore/1.1/ISurfaceFlingerConfigs.h>
-#include <hidl/MQDescriptor.h>
-#include <hidl/Status.h>
-
-namespace android {
-namespace hardware {
-namespace configstore {
-namespace V1_1 {
-namespace implementation {
-
-using ::android::hardware::configstore::V1_1::ISurfaceFlingerConfigs;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::sp;
-
-struct SurfaceFlingerConfigs : public ISurfaceFlingerConfigs {
-    // Methods from
-    // ::android::hardware::configstore::V1_0::ISurfaceFlingerConfigs follow.
-    Return<void> vsyncEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) override;
-    Return<void> vsyncSfEventPhaseOffsetNs(vsyncSfEventPhaseOffsetNs_cb _hidl_cb) override;
-    Return<void> useContextPriority(useContextPriority_cb _hidl_cb) override;
-    Return<void> hasWideColorDisplay(hasWideColorDisplay_cb _hidl_cb) override;
-    Return<void> hasHDRDisplay(hasHDRDisplay_cb _hidl_cb) override;
-    Return<void> presentTimeOffsetFromVSyncNs(presentTimeOffsetFromVSyncNs_cb _hidl_cb) override;
-    Return<void> useHwcForRGBtoYUV(useHwcForRGBtoYUV_cb _hidl_cb) override;
-    Return<void> maxVirtualDisplaySize(maxVirtualDisplaySize_cb _hidl_cb) override;
-    Return<void> hasSyncFramework(hasSyncFramework_cb _hidl_cb) override;
-    Return<void> useVrFlinger(useVrFlinger_cb _hidl_cb) override;
-    Return<void> maxFrameBufferAcquiredBuffers(maxFrameBufferAcquiredBuffers_cb _hidl_cb) override;
-    Return<void> startGraphicsAllocatorService(startGraphicsAllocatorService_cb _hidl_cb) override;
-
-    // Methods from
-    // ::android::hardware::configstore::V1_1::ISurfaceFlingerConfigs follow.
-    Return<void> primaryDisplayOrientation(primaryDisplayOrientation_cb _hidl_cb) override;
-
-    // Methods from ::android::hidl::base::V1_0::IBase follow.
-};
-
-}  // namespace implementation
-}  // namespace V1_1
-}  // namespace configstore
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_CONFIGSTORE_V1_1_SURFACEFLINGERCONFIGS_H
diff --git a/configstore/1.1/default/android.hardware.configstore@1.1-service.rc b/configstore/1.1/default/android.hardware.configstore@1.1-service.rc
deleted file mode 100644
index 105678a..0000000
--- a/configstore/1.1/default/android.hardware.configstore@1.1-service.rc
+++ /dev/null
@@ -1,4 +0,0 @@
-service vendor.configstore-hal /vendor/bin/hw/android.hardware.configstore@1.1-service
-    class hal animation
-    user system
-    group system
diff --git a/configstore/1.1/default/service.cpp b/configstore/1.1/default/service.cpp
deleted file mode 100644
index 3b4e774..0000000
--- a/configstore/1.1/default/service.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.1 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.1
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "android.hardware.configstore@1.1-service"
-
-#include <android/hardware/configstore/1.1/ISurfaceFlingerConfigs.h>
-#include <hidl/HidlTransportSupport.h>
-#include <hwminijail/HardwareMinijail.h>
-
-#include "SurfaceFlingerConfigs.h"
-
-using android::hardware::configureRpcThreadpool;
-using android::hardware::joinRpcThreadpool;
-using android::hardware::configstore::V1_1::ISurfaceFlingerConfigs;
-using android::hardware::configstore::V1_1::implementation::SurfaceFlingerConfigs;
-using android::hardware::SetupMinijail;
-using android::sp;
-using android::status_t;
-using android::OK;
-
-int main() {
-    configureRpcThreadpool(10, true);
-
-    SetupMinijail("/vendor/etc/seccomp_policy/configstore@1.1.policy");
-
-    sp<ISurfaceFlingerConfigs> surfaceFlingerConfigs = new SurfaceFlingerConfigs;
-    status_t status = surfaceFlingerConfigs->registerAsService();
-    LOG_ALWAYS_FATAL_IF(status != OK, "Could not register ISurfaceFlingerConfigs");
-
-    // other interface registration comes here
-    joinRpcThreadpool();
-    return 0;
-}
diff --git a/configstore/1.1/default/surfaceflinger.mk b/configstore/1.1/default/surfaceflinger.mk
deleted file mode 100644
index 35922eb..0000000
--- a/configstore/1.1/default/surfaceflinger.mk
+++ /dev/null
@@ -1,56 +0,0 @@
-
-LOCAL_SRC_FILES += SurfaceFlingerConfigs.cpp
-
-ifneq ($(VSYNC_EVENT_PHASE_OFFSET_NS),)
-    LOCAL_CFLAGS += -DVSYNC_EVENT_PHASE_OFFSET_NS=$(VSYNC_EVENT_PHASE_OFFSET_NS)
-endif
-
-ifneq ($(SF_VSYNC_EVENT_PHASE_OFFSET_NS),)
-    LOCAL_CFLAGS += -DSF_VSYNC_EVENT_PHASE_OFFSET_NS=$(SF_VSYNC_EVENT_PHASE_OFFSET_NS)
-endif
-
-ifeq ($(TARGET_USE_CONTEXT_PRIORITY),true)
-    LOCAL_CFLAGS += -DUSE_CONTEXT_PRIORITY=1
-endif
-
-ifeq ($(TARGET_HAS_WIDE_COLOR_DISPLAY),true)
-    LOCAL_CFLAGS += -DHAS_WIDE_COLOR_DISPLAY
-endif
-
-ifeq ($(TARGET_HAS_HDR_DISPLAY),true)
-    LOCAL_CFLAGS += -DHAS_HDR_DISPLAY
-endif
-
-ifneq ($(PRESENT_TIME_OFFSET_FROM_VSYNC_NS),)
-    LOCAL_CFLAGS += -DPRESENT_TIME_OFFSET_FROM_VSYNC_NS=$(PRESENT_TIME_OFFSET_FROM_VSYNC_NS)
-else
-    LOCAL_CFLAGS += -DPRESENT_TIME_OFFSET_FROM_VSYNC_NS=0
-endif
-
-ifeq ($(TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS),true)
-    LOCAL_CFLAGS += -DFORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS
-endif
-
-ifneq ($(MAX_VIRTUAL_DISPLAY_DIMENSION),)
-    LOCAL_CFLAGS += -DMAX_VIRTUAL_DISPLAY_DIMENSION=$(MAX_VIRTUAL_DISPLAY_DIMENSION)
-endif
-
-ifeq ($(TARGET_RUNNING_WITHOUT_SYNC_FRAMEWORK),true)
-    LOCAL_CFLAGS += -DRUNNING_WITHOUT_SYNC_FRAMEWORK
-endif
-
-ifneq ($(USE_VR_FLINGER),)
-    LOCAL_CFLAGS += -DUSE_VR_FLINGER
-endif
-
-ifneq ($(NUM_FRAMEBUFFER_SURFACE_BUFFERS),)
-    LOCAL_CFLAGS += -DNUM_FRAMEBUFFER_SURFACE_BUFFERS=$(NUM_FRAMEBUFFER_SURFACE_BUFFERS)
-endif
-
-ifneq ($(SF_START_GRAPHICS_ALLOCATOR_SERVICE),)
-    LOCAL_CFLAGS += -DSTART_GRAPHICS_ALLOCATOR_SERVICE
-endif
-
-ifneq ($(SF_PRIMARY_DISPLAY_ORIENTATION),)
-    LOCAL_CFLAGS += -DPRIMARY_DISPLAY_ORIENTATION=$(SF_PRIMARY_DISPLAY_ORIENTATION)
-endif
diff --git a/configstore/1.2/Android.bp b/configstore/1.2/Android.bp
new file mode 100644
index 0000000..a3976b6
--- /dev/null
+++ b/configstore/1.2/Android.bp
@@ -0,0 +1,27 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.configstore@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ISurfaceFlingerConfigs.hal",
+    ],
+    interfaces: [
+        "android.hardware.configstore@1.0",
+        "android.hardware.configstore@1.1",
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "CieXyz",
+        "DisplayPrimaries",
+    ],
+    gen_java: true,
+}
+
diff --git a/configstore/1.2/ISurfaceFlingerConfigs.hal b/configstore/1.2/ISurfaceFlingerConfigs.hal
new file mode 100644
index 0000000..431b3fc
--- /dev/null
+++ b/configstore/1.2/ISurfaceFlingerConfigs.hal
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.1 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.1
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.configstore@1.2;
+
+import android.hardware.graphics.common@1.2::PixelFormat;
+import android.hardware.graphics.common@1.2::Dataspace;
+import @1.1::ISurfaceFlingerConfigs;
+import @1.0::OptionalBool;
+
+/**
+ * New revision of ISurfaceFlingerConfigs
+ */
+interface ISurfaceFlingerConfigs extends @1.1::ISurfaceFlingerConfigs {
+    /**
+     * useColorManagement indicates whether SurfaceFlinger should manage color
+     * by switching to appropriate color mode automatically depending on the
+     * Dataspace of the surfaces on screen.
+     * This function must return true when hasWideColorDisplay or hasHDRDisplay
+     * return true.
+     */
+    useColorManagement() generates (OptionalBool value);
+
+    /**
+     * Returns the default data space and pixel format that SurfaceFlinger
+     * expects to receive and output as well as the wide color gamut data space
+     * and pixel format for wide color gamut surfaces.
+     * To determine the data space and pixel format, there are a few things
+     * we recommend to consider:
+     *
+     *   1. Hardware composer's capability to composite contents with the chosen
+     *      data space and pixel format efficiently;
+     *   2. Hardware composer's ability to composite contents when sRGB contents
+     *      and the chosen wide color gamut data space contents coexist;
+     *   3. For better blending, consider using pixel format where the alpha
+     *      channel has as many bits as the RGB color channel.
+     *   4. Memory consumption and efficient buffer compression when considering
+     *      more bits in pixel format.
+     *
+     * @return dataspace is the default data space that SurfaceFlinger expects.
+     *         The data space must not be Dataspace::UNKNOWN, if unspecified,
+     *         the default data space is Dataspace::V0_SRGB;
+     * @return pixelFormat is the default pixel format that SurfaceFlinger
+     *         expects. If unspecified, the default pixel format is
+     *         PixelFormat::RGBA_8888.
+     * @return wcgDataspace is the data space that SurfaceFlinger expects for
+     *         wide color gamut surfaces.
+     *         When hasWideColorDisplay returns true, this API must return a
+     *         valid wide color gamut data space.
+     *         The data space must not be UNKNOWN, if unspecified, the data space
+     *         is V0_SRGB by default, which essentially indicates there's no wide
+     *         color gamut, meaning hasWideColorDisplay returns false.
+     * @return wcgPixelFormat is the pixel format that SurfaceFlinger expects for
+     *         wide color gamut surfaces. If unspecified, the pixel format is
+     *         PixelFormat::RGBA_8888 by default.
+     */
+    getCompositionPreference()
+        generates (Dataspace dataspace, PixelFormat pixelFormat,
+                   Dataspace wcgDataspace, PixelFormat wcgPixelFormat);
+
+    /**
+     * Returns the native panel primary data. The data includes red, green,
+     * blue and white. The primary format is CIE 1931 XYZ color space. If
+     * unspecified, the primaries is sRGB gamut by default.
+     */
+    getDisplayNativePrimaries() generates (DisplayPrimaries primaries);
+};
diff --git a/configstore/1.2/default/Android.mk b/configstore/1.2/default/Android.mk
new file mode 100644
index 0000000..b807357
--- /dev/null
+++ b/configstore/1.2/default/Android.mk
@@ -0,0 +1,39 @@
+LOCAL_PATH := $(call my-dir)
+
+################################################################################
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.configstore@1.2-service
+# seccomp is not required for coverage build.
+ifneq ($(NATIVE_COVERAGE),true)
+LOCAL_REQUIRED_MODULES_arm64 := configstore.policy
+endif
+LOCAL_VENDOR_MODULE := true
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_INIT_RC := android.hardware.configstore@1.2-service.rc
+LOCAL_SRC_FILES:= service.cpp
+
+include $(LOCAL_PATH)/surfaceflinger.mk
+
+LOCAL_SHARED_LIBRARIES := \
+    libhidlbase \
+    libhidltransport \
+    libbase \
+    libhwminijail \
+    liblog \
+    libutils \
+    android.hardware.configstore@1.0 \
+    android.hardware.configstore@1.1 \
+    android.hardware.configstore@1.2
+
+include $(BUILD_EXECUTABLE)
+
+# seccomp filter for configstore
+ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm64))
+include $(CLEAR_VARS)
+LOCAL_MODULE := configstore.policy
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/etc/seccomp_policy
+LOCAL_SRC_FILES := seccomp_policy/configstore-$(TARGET_ARCH).policy
+include $(BUILD_PREBUILT)
+endif
diff --git a/configstore/1.2/default/SurfaceFlingerConfigs.cpp b/configstore/1.2/default/SurfaceFlingerConfigs.cpp
new file mode 100644
index 0000000..714442b
--- /dev/null
+++ b/configstore/1.2/default/SurfaceFlingerConfigs.cpp
@@ -0,0 +1,328 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.1 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.1
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SurfaceFlingerConfigs.h"
+
+#include <android/hardware/configstore/1.1/types.h>
+#include <android/hardware/configstore/1.2/types.h>
+#include <android/hardware/graphics/common/1.1/types.h>
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace configstore {
+namespace V1_2 {
+namespace implementation {
+
+using ::android::hardware::graphics::common::V1_2::Dataspace;
+using ::android::hardware::graphics::common::V1_2::PixelFormat;
+
+// ::android::hardware::configstore::V1_0::ISurfaceFlingerConfigs implementation.
+Return<void> SurfaceFlingerConfigs::vsyncEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) {
+#ifdef VSYNC_EVENT_PHASE_OFFSET_NS
+    _hidl_cb({true, VSYNC_EVENT_PHASE_OFFSET_NS});
+#else
+    _hidl_cb({false, 0});
+#endif
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::vsyncSfEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) {
+#ifdef SF_VSYNC_EVENT_PHASE_OFFSET_NS
+    _hidl_cb({true, SF_VSYNC_EVENT_PHASE_OFFSET_NS});
+#else
+    _hidl_cb({false, 0});
+#endif
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::useContextPriority(useContextPriority_cb _hidl_cb) {
+#ifdef USE_CONTEXT_PRIORITY
+    _hidl_cb({true, USE_CONTEXT_PRIORITY});
+#else
+    _hidl_cb({false, false});
+#endif
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::maxFrameBufferAcquiredBuffers(
+    maxFrameBufferAcquiredBuffers_cb _hidl_cb) {
+#ifdef NUM_FRAMEBUFFER_SURFACE_BUFFERS
+    _hidl_cb({true, NUM_FRAMEBUFFER_SURFACE_BUFFERS});
+#else
+    _hidl_cb({false, 0});
+#endif
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::hasWideColorDisplay(hasWideColorDisplay_cb _hidl_cb) {
+    bool value = false;
+#ifdef HAS_WIDE_COLOR_DISPLAY
+    value = true;
+#endif
+    _hidl_cb({true, value});
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::hasSyncFramework(hasSyncFramework_cb _hidl_cb) {
+    bool value = true;
+#ifdef RUNNING_WITHOUT_SYNC_FRAMEWORK
+    value = false;
+#endif
+    _hidl_cb({true, value});
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::hasHDRDisplay(hasHDRDisplay_cb _hidl_cb) {
+    bool value = false;
+#ifdef HAS_HDR_DISPLAY
+    value = true;
+#endif
+    _hidl_cb({true, value});
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::presentTimeOffsetFromVSyncNs(
+    presentTimeOffsetFromVSyncNs_cb _hidl_cb) {
+#ifdef PRESENT_TIME_OFFSET_FROM_VSYNC_NS
+    _hidl_cb({true, PRESENT_TIME_OFFSET_FROM_VSYNC_NS});
+#else
+    _hidl_cb({false, 0});
+#endif
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::useHwcForRGBtoYUV(useHwcForRGBtoYUV_cb _hidl_cb) {
+    bool value = false;
+#ifdef FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS
+    value = true;
+#endif
+    _hidl_cb({true, value});
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::maxVirtualDisplaySize(maxVirtualDisplaySize_cb _hidl_cb) {
+    uint64_t maxSize = 0;
+#ifdef MAX_VIRTUAL_DISPLAY_DIMENSION
+    maxSize = MAX_VIRTUAL_DISPLAY_DIMENSION;
+    _hidl_cb({true, maxSize});
+#else
+    _hidl_cb({false, maxSize});
+#endif
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::useVrFlinger(useVrFlinger_cb _hidl_cb) {
+    bool value = false;
+    bool specified = false;
+#ifdef USE_VR_FLINGER
+    value = true;
+    specified = true;
+#endif
+    _hidl_cb({specified, value});
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::startGraphicsAllocatorService(
+    startGraphicsAllocatorService_cb _hidl_cb) {
+    bool value = false;
+#ifdef START_GRAPHICS_ALLOCATOR_SERVICE
+    value = true;
+#endif
+    _hidl_cb({true, value});
+    return Void();
+}
+
+// ::android::hardware::configstore::V1_1::ISurfaceFlingerConfigs implementation.
+
+#ifdef PRIMARY_DISPLAY_ORIENTATION
+static_assert(PRIMARY_DISPLAY_ORIENTATION == 0 || PRIMARY_DISPLAY_ORIENTATION == 90 ||
+                  PRIMARY_DISPLAY_ORIENTATION == 180 || PRIMARY_DISPLAY_ORIENTATION == 270,
+              "Primary display orientation must be 0/90/180/270");
+#endif
+
+Return<void> SurfaceFlingerConfigs::primaryDisplayOrientation(
+    primaryDisplayOrientation_cb _hidl_cb) {
+    using ::android::hardware::configstore::V1_1::DisplayOrientation;
+
+    bool specified = false;
+    DisplayOrientation value = DisplayOrientation::ORIENTATION_0;
+
+    int orientation = 0;
+#ifdef PRIMARY_DISPLAY_ORIENTATION
+    specified = true;
+    orientation = PRIMARY_DISPLAY_ORIENTATION;
+#endif
+
+    switch (orientation) {
+        case 0: {
+            value = DisplayOrientation::ORIENTATION_0;
+            break;
+        }
+        case 90: {
+            value = DisplayOrientation::ORIENTATION_90;
+            break;
+        }
+        case 180: {
+            value = DisplayOrientation::ORIENTATION_180;
+            break;
+        }
+        case 270: {
+            value = DisplayOrientation::ORIENTATION_270;
+            break;
+        }
+        default: {
+            // statically checked above -> memory corruption
+            LOG_ALWAYS_FATAL("Invalid orientation %d", orientation);
+        }
+    }
+
+    _hidl_cb({specified, value});
+    return Void();
+}
+
+// ::android::hardware::configstore::V1_2::ISurfaceFlingerConfigs implementation.
+Return<void> SurfaceFlingerConfigs::useColorManagement(useColorManagement_cb _hidl_cb) {
+#if defined(USE_COLOR_MANAGEMENT) || defined(HAS_WIDE_COLOR_DISPLAY) || defined(HAS_HDR_DISPLAY)
+    _hidl_cb({true, true});
+#else
+    _hidl_cb({true, false});
+#endif
+    return Void();
+}
+
+#ifdef DEFAULT_COMPOSITION_DATA_SPACE
+static_assert(DEFAULT_COMPOSITION_DATA_SPACE != 0,
+              "Default composition data space must not be UNKNOWN");
+#endif
+
+#ifdef WCG_COMPOSITION_DATA_SPACE
+static_assert(WCG_COMPOSITION_DATA_SPACE != 0,
+              "Wide color gamut composition data space must not be UNKNOWN");
+#endif
+
+Return<void> SurfaceFlingerConfigs::getCompositionPreference(getCompositionPreference_cb _hidl_cb) {
+    Dataspace defaultDataspace = Dataspace::V0_SRGB;
+    PixelFormat defaultPixelFormat = PixelFormat::RGBA_8888;
+
+#ifdef DEFAULT_COMPOSITION_DATA_SPACE
+    defaultDataspace = static_cast<Dataspace>(DEFAULT_COMPOSITION_DATA_SPACE);
+#endif
+
+#ifdef DEFAULT_COMPOSITION_PIXEL_FORMAT
+    defaultPixelFormat = static_cast<PixelFormat>(DEFAULT_COMPOSITION_PIXEL_FORMAT);
+#endif
+
+    Dataspace wideColorGamutDataspace = Dataspace::V0_SRGB;
+    PixelFormat wideColorGamutPixelFormat = PixelFormat::RGBA_8888;
+
+#ifdef WCG_COMPOSITION_DATA_SPACE
+    wideColorGamutDataspace = static_cast<Dataspace>(WCG_COMPOSITION_DATA_SPACE);
+#endif
+
+#ifdef WCG_COMPOSITION_PIXEL_FORMAT
+    wideColorGamutPixelFormat = static_cast<PixelFormat>(WCG_COMPOSITION_PIXEL_FORMAT);
+#endif
+
+    _hidl_cb(defaultDataspace, defaultPixelFormat, wideColorGamutDataspace,
+             wideColorGamutPixelFormat);
+    return Void();
+}
+
+Return<void> SurfaceFlingerConfigs::getDisplayNativePrimaries(getDisplayNativePrimaries_cb _hidl_cb) {
+    DisplayPrimaries primaries;
+    // The default XYZ is sRGB gamut in CIE1931 color space
+#ifdef TARGET_DISPLAY_PRIMARY_RED_X
+    primaries.red.X = TARGET_DISPLAY_PRIMARY_RED_X;
+#else
+    primaries.red.X = 0.4123;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_RED_Y
+    primaries.red.Y = TARGET_DISPLAY_PRIMARY_RED_Y;
+#else
+    primaries.red.Y = 0.2126;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_RED_Z
+    primaries.red.Z = TARGET_DISPLAY_PRIMARY_RED_Z;
+#else
+    primaries.red.Z = 0.0193;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_GREEN_X
+    primaries.green.X = TARGET_DISPLAY_PRIMARY_GREEN_X;
+#else
+    primaries.green.X = 0.3576;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_GREEN_Y
+    primaries.green.Y = TARGET_DISPLAY_PRIMARY_GREEN_Y;
+#else
+    primaries.green.Y = 0.7152;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_GREEN_Z
+    primaries.green.Z = TARGET_DISPLAY_PRIMARY_GREEN_Z;
+#else
+    primaries.green.Z = 0.1192;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_BLUE_X
+    primaries.blue.X = TARGET_DISPLAY_PRIMARY_BLUE_X;
+#else
+    primaries.blue.X = 0.1805;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_BLUE_Y
+    primaries.blue.Y = TARGET_DISPLAY_PRIMARY_BLUE_Y;
+#else
+    primaries.blue.Y = 0.0722;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_BLUE_Z
+    primaries.blue.Z = TARGET_DISPLAY_PRIMARY_BLUE_Z;
+#else
+    primaries.blue.Z = 0.9506;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_WHITE_X
+    primaries.white.X = TARGET_DISPLAY_PRIMARY_WHITE_X;
+#else
+    primaries.white.X = 0.9505;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_WHITE_Y
+    primaries.white.Y = TARGET_DISPLAY_PRIMARY_WHITE_Y;
+#else
+    primaries.white.Y = 1.0000;
+#endif
+
+#ifdef TARGET_DISPLAY_PRIMARY_WHITE_Z
+    primaries.white.Z = TARGET_DISPLAY_PRIMARY_WHITE_Z;
+#else
+    primaries.white.Z = 1.0891;
+#endif
+
+    _hidl_cb(primaries);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_2
+}  // namespace configstore
+}  // namespace hardware
+}  // namespace android
diff --git a/configstore/1.2/default/SurfaceFlingerConfigs.h b/configstore/1.2/default/SurfaceFlingerConfigs.h
new file mode 100644
index 0000000..54a6e62
--- /dev/null
+++ b/configstore/1.2/default/SurfaceFlingerConfigs.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.1 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.1
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CONFIGSTORE_V1_2_SURFACEFLINGERCONFIGS_H
+#define ANDROID_HARDWARE_CONFIGSTORE_V1_2_SURFACEFLINGERCONFIGS_H
+
+#include <android/hardware/configstore/1.2/ISurfaceFlingerConfigs.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace configstore {
+namespace V1_2 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::configstore::V1_2::ISurfaceFlingerConfigs;
+
+struct SurfaceFlingerConfigs : public ISurfaceFlingerConfigs {
+    // ::android::hardware::configstore::V1_0::ISurfaceFlingerConfigs implementation.
+    Return<void> vsyncEventPhaseOffsetNs(vsyncEventPhaseOffsetNs_cb _hidl_cb) override;
+    Return<void> vsyncSfEventPhaseOffsetNs(vsyncSfEventPhaseOffsetNs_cb _hidl_cb) override;
+    Return<void> useContextPriority(useContextPriority_cb _hidl_cb) override;
+    Return<void> hasWideColorDisplay(hasWideColorDisplay_cb _hidl_cb) override;
+    Return<void> hasHDRDisplay(hasHDRDisplay_cb _hidl_cb) override;
+    Return<void> presentTimeOffsetFromVSyncNs(presentTimeOffsetFromVSyncNs_cb _hidl_cb) override;
+    Return<void> useHwcForRGBtoYUV(useHwcForRGBtoYUV_cb _hidl_cb) override;
+    Return<void> maxVirtualDisplaySize(maxVirtualDisplaySize_cb _hidl_cb) override;
+    Return<void> hasSyncFramework(hasSyncFramework_cb _hidl_cb) override;
+    Return<void> useVrFlinger(useVrFlinger_cb _hidl_cb) override;
+    Return<void> maxFrameBufferAcquiredBuffers(maxFrameBufferAcquiredBuffers_cb _hidl_cb) override;
+    Return<void> startGraphicsAllocatorService(startGraphicsAllocatorService_cb _hidl_cb) override;
+
+    // ::android::hardware::configstore::V1_1::ISurfaceFlingerConfigs follow implementation.
+    Return<void> primaryDisplayOrientation(primaryDisplayOrientation_cb _hidl_cb) override;
+
+    // ::android::hardware::configstore::V1_2::ISurfaceFlingerConfigs follow implementation.
+    Return<void> useColorManagement(useColorManagement_cb _hidl_cb) override;
+    Return<void> getCompositionPreference(getCompositionPreference_cb _hidl_cb) override;
+    Return<void> getDisplayNativePrimaries(getDisplayNativePrimaries_cb _hidl_cb) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_2
+}  // namespace configstore
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CONFIGSTORE_V1_2_SURFACEFLINGERCONFIGS_H
diff --git a/configstore/1.2/default/android.hardware.configstore@1.2-service.rc b/configstore/1.2/default/android.hardware.configstore@1.2-service.rc
new file mode 100644
index 0000000..d6c5d10
--- /dev/null
+++ b/configstore/1.2/default/android.hardware.configstore@1.2-service.rc
@@ -0,0 +1,4 @@
+service vendor.configstore-hal /vendor/bin/hw/android.hardware.configstore@1.2-service
+    class hal animation
+    user system
+    group system
diff --git a/configstore/1.1/default/seccomp_policy/configstore@1.1-arm64.policy b/configstore/1.2/default/seccomp_policy/configstore-arm64.policy
similarity index 100%
rename from configstore/1.1/default/seccomp_policy/configstore@1.1-arm64.policy
rename to configstore/1.2/default/seccomp_policy/configstore-arm64.policy
diff --git a/configstore/1.2/default/service.cpp b/configstore/1.2/default/service.cpp
new file mode 100644
index 0000000..65a42f5
--- /dev/null
+++ b/configstore/1.2/default/service.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.1 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.1
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.configstore@1.2-service"
+
+#include <android/hardware/configstore/1.2/ISurfaceFlingerConfigs.h>
+#include <hidl/HidlTransportSupport.h>
+#include <hwminijail/HardwareMinijail.h>
+
+#include "SurfaceFlingerConfigs.h"
+
+using android::OK;
+using android::sp;
+using android::status_t;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::SetupMinijail;
+using android::hardware::configstore::V1_2::ISurfaceFlingerConfigs;
+using android::hardware::configstore::V1_2::implementation::SurfaceFlingerConfigs;
+
+int main() {
+    configureRpcThreadpool(10, true);
+
+    SetupMinijail("/vendor/etc/seccomp_policy/configstore.policy");
+
+    sp<ISurfaceFlingerConfigs> surfaceFlingerConfigs = new SurfaceFlingerConfigs;
+    status_t status = surfaceFlingerConfigs->registerAsService();
+    LOG_ALWAYS_FATAL_IF(status != OK, "Could not register ISurfaceFlingerConfigs");
+
+    // other interface registration comes here
+    joinRpcThreadpool();
+    return 0;
+}
diff --git a/configstore/1.2/default/surfaceflinger.mk b/configstore/1.2/default/surfaceflinger.mk
new file mode 100644
index 0000000..9a67256
--- /dev/null
+++ b/configstore/1.2/default/surfaceflinger.mk
@@ -0,0 +1,124 @@
+
+LOCAL_SRC_FILES += SurfaceFlingerConfigs.cpp
+
+ifneq ($(VSYNC_EVENT_PHASE_OFFSET_NS),)
+    LOCAL_CFLAGS += -DVSYNC_EVENT_PHASE_OFFSET_NS=$(VSYNC_EVENT_PHASE_OFFSET_NS)
+endif
+
+ifneq ($(SF_VSYNC_EVENT_PHASE_OFFSET_NS),)
+    LOCAL_CFLAGS += -DSF_VSYNC_EVENT_PHASE_OFFSET_NS=$(SF_VSYNC_EVENT_PHASE_OFFSET_NS)
+endif
+
+ifeq ($(TARGET_USE_CONTEXT_PRIORITY),true)
+    LOCAL_CFLAGS += -DUSE_CONTEXT_PRIORITY=1
+endif
+
+ifeq ($(TARGET_HAS_WIDE_COLOR_DISPLAY),true)
+    LOCAL_CFLAGS += -DHAS_WIDE_COLOR_DISPLAY
+endif
+
+ifeq ($(TARGET_HAS_HDR_DISPLAY),true)
+    LOCAL_CFLAGS += -DHAS_HDR_DISPLAY
+endif
+
+ifneq ($(PRESENT_TIME_OFFSET_FROM_VSYNC_NS),)
+    LOCAL_CFLAGS += -DPRESENT_TIME_OFFSET_FROM_VSYNC_NS=$(PRESENT_TIME_OFFSET_FROM_VSYNC_NS)
+else
+    LOCAL_CFLAGS += -DPRESENT_TIME_OFFSET_FROM_VSYNC_NS=0
+endif
+
+ifeq ($(TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS),true)
+    LOCAL_CFLAGS += -DFORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS
+endif
+
+ifneq ($(MAX_VIRTUAL_DISPLAY_DIMENSION),)
+    LOCAL_CFLAGS += -DMAX_VIRTUAL_DISPLAY_DIMENSION=$(MAX_VIRTUAL_DISPLAY_DIMENSION)
+endif
+
+ifeq ($(TARGET_RUNNING_WITHOUT_SYNC_FRAMEWORK),true)
+    LOCAL_CFLAGS += -DRUNNING_WITHOUT_SYNC_FRAMEWORK
+endif
+
+ifneq ($(USE_VR_FLINGER),)
+    LOCAL_CFLAGS += -DUSE_VR_FLINGER
+endif
+
+ifneq ($(NUM_FRAMEBUFFER_SURFACE_BUFFERS),)
+    LOCAL_CFLAGS += -DNUM_FRAMEBUFFER_SURFACE_BUFFERS=$(NUM_FRAMEBUFFER_SURFACE_BUFFERS)
+endif
+
+ifneq ($(SF_START_GRAPHICS_ALLOCATOR_SERVICE),)
+    LOCAL_CFLAGS += -DSTART_GRAPHICS_ALLOCATOR_SERVICE
+endif
+
+ifneq ($(SF_PRIMARY_DISPLAY_ORIENTATION),)
+    LOCAL_CFLAGS += -DPRIMARY_DISPLAY_ORIENTATION=$(SF_PRIMARY_DISPLAY_ORIENTATION)
+endif
+
+ifeq ($(TARGET_USE_COLOR_MANAGEMENT),true)
+    LOCAL_CFLAGS += -DUSE_COLOR_MANAGEMENT
+endif
+
+ifneq ($(SF_DEFAULT_COMPOSITION_DATA_SPACE),)
+    LOCAL_CFLAGS += -DDEFAULT_COMPOSITION_DATA_SPACE=$(SF_DEFAULT_COMPOSITION_DATA_SPACE)
+endif
+
+ifneq ($(SF_DEFAULT_COMPOSITION_PIXEL_FORMAT),)
+    LOCAL_CFLAGS += -DDEFAULT_COMPOSITION_PIXEL_FORMAT=$(SF_DEFAULT_COMPOSITION_PIXEL_FORMAT)
+endif
+
+ifneq ($(SF_WCG_COMPOSITION_DATA_SPACE),)
+    LOCAL_CFLAGS += -DWCG_COMPOSITION_DATA_SPACE=$(SF_WCG_COMPOSITION_DATA_SPACE)
+endif
+
+ifneq ($(SF_WCG_COMPOSITION_PIXEL_FORMAT),)
+    LOCAL_CFLAGS += -DWCG_COMPOSITION_PIXEL_FORMAT=$(SF_WCG_COMPOSITION_PIXEL_FORMAT)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_RED_X),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_RED_X=$(TARGET_DISPLAY_PRIMARY_RED_X)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_RED_Y),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_RED_Y=$(TARGET_DISPLAY_PRIMARY_RED_Y)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_RED_Z),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_RED_Z=$(TARGET_DISPLAY_PRIMARY_RED_Z)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_GREEN_X),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_GREEN_X=$(TARGET_DISPLAY_PRIMARY_GREEN_X)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_GREEN_Y),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_GREEN_Y=$(TARGET_DISPLAY_PRIMARY_GREEN_Y)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_GREEN_Z),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_GREEN_Z=$(TARGET_DISPLAY_PRIMARY_GREEN_Z)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_BLUE_X),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_BLUE_X=$(TARGET_DISPLAY_PRIMARY_BLUE_X)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_BLUE_Y),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_BLUE_Y=$(TARGET_DISPLAY_PRIMARY_BLUE_Y)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_BLUE_Z),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_BLUE_Z=$(TARGET_DISPLAY_PRIMARY_BLUE_Z)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_WHITE_X),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_WHITE_X=$(TARGET_DISPLAY_PRIMARY_WHITE_X)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_WHITE_Y),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_WHITE_Y=$(TARGET_DISPLAY_PRIMARY_WHITE_Y)
+endif
+
+ifneq ($(TARGET_DISPLAY_PRIMARY_WHITE_Z),)
+    LOCAL_CFLAGS += -DTARGET_DISPLAY_PRIMARY_WHITE_Z=$(TARGET_DISPLAY_PRIMARY_WHITE_Z)
+endif
diff --git a/configstore/1.2/types.hal b/configstore/1.2/types.hal
new file mode 100644
index 0000000..5b2c9a6
--- /dev/null
+++ b/configstore/1.2/types.hal
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.configstore@1.2;
+
+struct CieXyz {
+    float X;
+    float Y;
+    float Z;
+};
+struct DisplayPrimaries {
+    CieXyz red;
+    CieXyz green;
+    CieXyz blue;
+    CieXyz white;
+};
diff --git a/configstore/1.2/vts/functional/Android.bp b/configstore/1.2/vts/functional/Android.bp
new file mode 100644
index 0000000..5f1eca6
--- /dev/null
+++ b/configstore/1.2/vts/functional/Android.bp
@@ -0,0 +1,27 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalConfigstoreV1_2TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalConfigstoreV1_2TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.configstore@1.0",
+        "android.hardware.configstore@1.1",
+        "android.hardware.configstore@1.2",
+    ],
+}
+
diff --git a/configstore/1.2/vts/functional/OWNERS b/configstore/1.2/vts/functional/OWNERS
new file mode 100644
index 0000000..2b4fb8c
--- /dev/null
+++ b/configstore/1.2/vts/functional/OWNERS
@@ -0,0 +1,7 @@
+# Graphics team
+lpy@google.com
+olv@google.com
+stoza@google.com
+
+# VTS team
+yim@google.com
diff --git a/configstore/1.2/vts/functional/VtsHalConfigstoreV1_2TargetTest.cpp b/configstore/1.2/vts/functional/VtsHalConfigstoreV1_2TargetTest.cpp
new file mode 100644
index 0000000..d7f4dcf
--- /dev/null
+++ b/configstore/1.2/vts/functional/VtsHalConfigstoreV1_2TargetTest.cpp
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ConfigstoreHidlHalTest"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <android-base/logging.h>
+#include <android/hardware/configstore/1.0/types.h>
+#include <android/hardware/configstore/1.2/ISurfaceFlingerConfigs.h>
+#include <android/hardware/configstore/1.2/types.h>
+#include <unistd.h>
+
+using ::android::sp;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::configstore::V1_0::OptionalBool;
+using ::android::hardware::configstore::V1_0::OptionalInt64;
+using ::android::hardware::configstore::V1_0::OptionalUInt64;
+using ::android::hardware::configstore::V1_2::DisplayPrimaries;
+using ::android::hardware::configstore::V1_2::ISurfaceFlingerConfigs;
+using ::android::hardware::graphics::common::V1_2::Dataspace;
+using ::android::hardware::graphics::common::V1_2::PixelFormat;
+
+#define ASSERT_OK(ret) ASSERT_TRUE(ret.isOk())
+#define EXPECT_OK(ret) EXPECT_TRUE(ret.isOk())
+
+// Test environment for Configstore HIDL HAL.
+class ConfigstoreHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static ConfigstoreHidlEnvironment* Instance() {
+        static ConfigstoreHidlEnvironment* instance = new ConfigstoreHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<ISurfaceFlingerConfigs>(); }
+};
+
+class ConfigstoreHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    sp<ISurfaceFlingerConfigs> sfConfigs;
+
+    virtual void SetUp() override {
+        sfConfigs = ::testing::VtsHalHidlTargetTestBase::getService<ISurfaceFlingerConfigs>(
+            ConfigstoreHidlEnvironment::Instance()->getServiceName<ISurfaceFlingerConfigs>());
+        ASSERT_NE(sfConfigs, nullptr);
+    }
+
+    virtual void TearDown() override {}
+
+    bool isSupportedWideColorGamut(Dataspace dataspace) {
+        Dataspace standard = static_cast<Dataspace>(dataspace & Dataspace::STANDARD_MASK);
+        return standard == Dataspace::STANDARD_DCI_P3 || standard == Dataspace::STANDARD_BT2020;
+    }
+};
+
+/**
+ * Make sure the constrains of hasWideColorDisplay, hasHDRDisplay
+ * and useColorManagement are enforced.
+ */
+TEST_F(ConfigstoreHidlTest, TestColorConstrainsWithColorManagement) {
+    bool hasWideColorDisplay;
+    bool hasHDRDisplay;
+    bool useColorManagement;
+
+    Return<void> status = sfConfigs->hasWideColorDisplay(
+        [&](OptionalBool arg) { hasWideColorDisplay = arg.specified; });
+    EXPECT_OK(status);
+
+    status = sfConfigs->hasHDRDisplay([&](OptionalBool arg) { hasHDRDisplay = arg.specified; });
+    EXPECT_OK(status);
+
+    status = sfConfigs->useColorManagement(
+        [&](OptionalBool arg) { useColorManagement = arg.specified; });
+    EXPECT_OK(status);
+
+    // When hasHDRDisplay returns true, hasWideColorDisplay must also return true.
+    if (hasHDRDisplay) {
+        ASSERT_TRUE(hasWideColorDisplay);
+    }
+
+    // When hasWideColorDisplay returns true, useColorManagement
+    // must also return true.
+    if (hasWideColorDisplay) {
+        ASSERT_TRUE(useColorManagement);
+    }
+}
+
+TEST_F(ConfigstoreHidlTest, TestGetCompositionPreference) {
+    bool hasWideColorDisplay;
+
+    Return<void> status = sfConfigs->hasWideColorDisplay(
+        [&](OptionalBool arg) { hasWideColorDisplay = arg.specified; });
+    EXPECT_OK(status);
+
+    Dataspace defaultDataspace, wcgDataspace;
+
+    status = sfConfigs->getCompositionPreference(
+        [&](auto tmpDefaultDataspace, PixelFormat, auto tmpWcgDataspace, PixelFormat) {
+            defaultDataspace = tmpDefaultDataspace;
+            wcgDataspace = tmpWcgDataspace;
+        });
+    EXPECT_OK(status);
+
+    // Default data space and wide color gamut data space must not be UNKNOWN.
+    ASSERT_TRUE(defaultDataspace != Dataspace::UNKNOWN && wcgDataspace != Dataspace::UNKNOWN);
+
+    // If hasWideColorDisplay returns true, the wide color gamut data space must be a valid wide
+    // color gamut.
+    if (hasWideColorDisplay) {
+        ASSERT_TRUE(isSupportedWideColorGamut(wcgDataspace));
+    }
+}
+
+TEST_F(ConfigstoreHidlTest, TestGetDisplayNativePrimaries) {
+    DisplayPrimaries primaries;
+
+    Return<void> status = sfConfigs->getDisplayNativePrimaries(
+        [&](DisplayPrimaries tmpPrimaries) {
+            primaries.red = tmpPrimaries.red;
+            primaries.green = tmpPrimaries.green;
+            primaries.blue = tmpPrimaries.blue;
+            primaries.white = tmpPrimaries.white;
+        });
+    EXPECT_OK(status);
+
+    // Display primaries should be greater than or equal to zero.
+    // Or it returns defualt value if there is no definition.
+    // RED
+    EXPECT_GE(primaries.red.X, 0.0);
+    EXPECT_GE(primaries.red.Y, 0.0);
+    EXPECT_GE(primaries.red.Z, 0.0);
+
+    // GREEN
+    EXPECT_GE(primaries.green.X, 0.0);
+    EXPECT_GE(primaries.green.Y, 0.0);
+    EXPECT_GE(primaries.green.Z, 0.0);
+
+
+    // BLUE
+    EXPECT_GE(primaries.blue.X, 0.0);
+    EXPECT_GE(primaries.blue.Y, 0.0);
+    EXPECT_GE(primaries.blue.Z, 0.0);
+
+
+    // WHITE
+    EXPECT_GE(primaries.white.X, 0.0);
+    EXPECT_GE(primaries.white.Y, 0.0);
+    EXPECT_GE(primaries.white.Z, 0.0);
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(ConfigstoreHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    ConfigstoreHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/configstore/utils/Android.bp b/configstore/utils/Android.bp
index 178f245..e0d4aa8 100644
--- a/configstore/utils/Android.bp
+++ b/configstore/utils/Android.bp
@@ -30,12 +30,14 @@
     shared_libs: [
         "android.hardware.configstore@1.0",
         "android.hardware.configstore@1.1",
+        "android.hardware.configstore@1.2",
         "libbase",
         "libhidlbase"
     ],
     export_shared_lib_headers: [
         "android.hardware.configstore@1.0",
         "android.hardware.configstore@1.1",
+        "android.hardware.configstore@1.2",
         "libbase",
         "libhidlbase"
     ],
diff --git a/contexthub/1.0/default/OWNERS b/contexthub/1.0/default/OWNERS
index 49a3204..5373073 100644
--- a/contexthub/1.0/default/OWNERS
+++ b/contexthub/1.0/default/OWNERS
@@ -1,2 +1,4 @@
-ashutoshj@google.com
+aarossig@google.com
+arthuri@google.com
 bduddie@google.com
+bstack@google.com
diff --git a/contexthub/1.0/vts/functional/OWNERS b/contexthub/1.0/vts/functional/OWNERS
index ad036b4..ee01441 100644
--- a/contexthub/1.0/vts/functional/OWNERS
+++ b/contexthub/1.0/vts/functional/OWNERS
@@ -1,6 +1,8 @@
 #Context Hub team
-ashutoshj@google.com
+aarossig@google.com
+arthuri@google.com
 bduddie@google.com
+bstack@google.com
 
 #VTS team
 yim@google.com
diff --git a/current.txt b/current.txt
index 9b76b8d..94b40c2 100644
--- a/current.txt
+++ b/current.txt
@@ -403,6 +403,7 @@
 1d19720d4fd38b1095f0f555a4bd92b3b12c9b1d0f560b0e9a474cd6dcc20db6 android.hardware.radio@1.2::IRadio
 cd1757867a5e3a3faa362e785239515870d1a3c9ce756c6f0cf0f0fd8aac2547 android.hardware.radio@1.2::types
 e78cf871f9fd1c072874e481e06e18e2681763cf2aa38c1fd777d53bab4eb69b android.hardware.sensors@1.0::types
+3d01e29e8129186f7567c4f9c8bee7480a0768e587b1be9b28adb0a6cbec6bf2 android.hardware.tv.cec@1.0::types
 1722ad002317b1fae1400de709e90f442d94ef22864e05f7a12af48c32e8edc8 android.hardware.usb@1.1::types
 29c8da7a13c40d488f569c812441d5754ee45bdcdb8ce6564f524b708d10a057 android.hardware.vibrator@1.1::types
 
@@ -433,15 +434,74 @@
 443659bb9e27221e5da0d16c7a0ecb2dc3a9a03acc8a0b2196b47c50735e2d2e android.hardware.audio.effect@5.0::IVirtualizerEffect
 78fed26a781cdca1b3bcb37520bff705d7764ee81db9cfd37014953c7ad2596e android.hardware.audio.effect@5.0::IVisualizerEffect
 6385b6accab8a544e2ee54ba7bf5aa55dff6153bcedd80fdaae16fe9e0be7050 android.hardware.audio.effect@5.0::types
+2f11e4c10ebe2b600426e0695f3c720d21663501c1c9449537055f13f37600d3 android.hardware.biometrics.face@1.0::IBiometricsFace
+dfb0666af59eb306c82a6f576c65a160e6829d3324211a10429fd63768df70df android.hardware.biometrics.face@1.0::IBiometricsFaceClientCallback
+cc40d308f38b6a218fcf99f264ebb49544fce670a6abdf294c617357a3d83dad android.hardware.biometrics.face@1.0::types
 ecedc58dbcdb13503c19c0ab160ac1dd0530bb1471164149282dd1463c684185 android.hardware.bluetooth.audio@2.0::IBluetoothAudioPort
 fb9c40e4deab40be5476477078fe3d8a4a4495fd9deef4321878d169d675c633 android.hardware.bluetooth.audio@2.0::IBluetoothAudioProvider
 f7431f3e3e4e3387fc6f27a6cf423eddcd824a395dc4349d302c995ab44a9895 android.hardware.bluetooth.audio@2.0::IBluetoothAudioProvidersFactory
 447a5c9bb0f1a5ed3f1dfe5216afe4be2f4362111d95479670eec4cae4d7d5f7 android.hardware.bluetooth.audio@2.0::types
+09ab9b24994429d9bb32a3fb420b6f6be3e47eb655139a2c08c4e80d3f33ff95 android.hardware.camera.device@3.5::ICameraDevice
+06237de53c42890029e3f8fe7d1480d078469c0d07608e51c37b4d485d342992 android.hardware.camera.device@3.5::ICameraDeviceCallback
+08c68b196e2fc4e5ba67ba0d0917bde828a87cbe2cffec19d04733972da9eb49 android.hardware.camera.device@3.5::ICameraDeviceSession
+acaba39216973e58949f50978762bcda1c29f5f7e0bca3e08db21f0767356130 android.hardware.camera.device@3.5::types
+74ec7732fdacb22292c907b49f8f933510851ea1b3ed195c4dcdff35a20387f5 android.hardware.camera.metadata@3.4::types
+0fb39a7809ad1c52b3efbbed5ef4749b06c2a4f1f19cdc3efa2e3d9b28f1205c android.hardware.camera.provider@2.5::ICameraProvider
+f5777403d65135a5407723671bc7a864cdca83aea13ee3ce2894b95e6588ca3a android.hardware.camera.provider@2.5::types
+44c88954b3c201b26f64fcdb6f278024ab3aae864a9e1ec70e8a74274ae9d6aa android.hardware.cas@1.1::ICas
+25012d1778f7396f967bbc0231397d544bde421ba5b98706c9e48ac790612683 android.hardware.cas@1.1::ICasListener
+dffacdbe0bcf8443013de5bdc56a83479ad979d4919ed15a5585539f46091f07 android.hardware.cas@1.1::IMediaCasService
+bc742c6b17c834010f90c06ce2939c845198eecd2706be18da99e14bceb2acc0 android.hardware.configstore@1.2::ISurfaceFlingerConfigs
+aadac6b9fcf660384d73cbb97f3732ff9eeb8e8c67001e3fdbf4add108e5b1dc android.hardware.configstore@1.2::types
+5b1f4a4fb88c239e07d76026467a1f2ee0d08f4d52c1805bd93bd7c05e3fe69c android.hardware.drm@1.2::ICryptoFactory
+4895f98e9ef210e9acb01982f5d07b654538377e1404b8db5e19e7858835e9d8 android.hardware.drm@1.2::ICryptoPlugin
+976116b9033b2c222b940109fdf0ffcc29b77cbe631ef6b4fcc2ad5ce8e605f7 android.hardware.drm@1.2::IDrmFactory
+b2efccc6425085f84795a2ca15a09d9a81ffd02f9dc3d30ba21d1a59bdfa253f android.hardware.drm@1.2::IDrmPlugin
+39ca9e88404b6c090f7650455a7ed3fdee9cce4e3a356c9d547f8ff02f2e7fc8 android.hardware.drm@1.2::IDrmPluginListener
+f27baaa587bc3dd9b740cb6928ab812b9b7d105b5187663938aee578105f3c39 android.hardware.drm@1.2::types
 44480c912e4ab90b9ed17e56569cd5ca98413a8a2372efb028f4181204b6b73e android.hardware.fastboot@1.0::IFastboot
 7b2989744e3c555292d4b5b829acd09a7b40f96ead62ce54174cd959503b64bb android.hardware.fastboot@1.0::types
+7f460e795f5d1ed5e378935f98c6db4d39497de988aef1b4c2a4a07a6c400392 android.hardware.gnss@2.0::IAGnss
+2e5ad983734069e84a760004b32da0d09e4170c05380abe27e6eb80e4aa70d5a android.hardware.gnss@2.0::IAGnssCallback
+1f4ac068a88a72360280d94a7f6fd7c63813c1eea4891a0eb01394d3e7e775f2 android.hardware.gnss@2.0::IAGnssRil
+6e2f9a44375a0ae0b49ca7d711cb88945189d398535078408269e1e85889061d android.hardware.gnss@2.0::IGnss
+54d253b10c7da2a4a708d11acda3118b283df1540bc10323a5a3773c94cc8e71 android.hardware.gnss@2.0::IGnssCallback
+ecc966c68bddbd95c8dae782b84204cf01c75734675e8769963f3b5106ec128b android.hardware.gnss@2.0::IGnssConfiguration
+c67759f5d6387d273b66729180d03690e827f0b6b8d4e13ce2ff42d31b224065 android.hardware.gnss@2.0::IGnssMeasurement
+089338944c45f66f25ba4ee958c161c42fefeb73ec60e4451f3535a1b3fd10c7 android.hardware.gnss@2.0::IGnssMeasurementCallback
+9e66234e65bcde75733d75d8b5d5cc094c2a5e14b074a25cd3f9ad141dc56f60 android.hardware.gnss@2.0::types
+50623a69a88b1c8a05738e4af7d5f78e905f415ccb0e84c99d0a71ea182e9393 android.hardware.gnss.measurement_corrections@1.0::IMeasurementCorrections
+6ef12cd95df73f8f80c25eb035d98ca4594f9cee571fdabea838a0b6016dd908 android.hardware.gnss.measurement_corrections@1.0::types
+0d278956d7fc6fdf9ca9c42962ff2d73967bbb1c9f0b3e0b58d71b7095c286bc android.hardware.gnss.visibility_control@1.0::IGnssVisibilityControl
+0d99e34500cfc2d40b684cb4dea7ebd89d4aff9f5315ed36b33442a7a88c138c android.hardware.gnss.visibility_control@1.0::IGnssVisibilityControlCallback
+6b2d8dfa3db505c34a3a19082d8737c86bd859ec00f0e6c5fd19cce3c1ef95d1 android.hardware.graphics.allocator@3.0::IAllocator
+2a81d3132df91614a30ca45dfe088d67ddbb30240ab8c25feb6b8110d7ec3800 android.hardware.graphics.bufferqueue@2.0::IGraphicBufferProducer
+b826892686850a9cf2b60ca5845db7185c2196ea4dd765cd80cd163169678a78 android.hardware.graphics.bufferqueue@2.0::IProducerListener
+01c6398c90fc6be0640810e2c5d8a4863b457280132bb3f97dd5682e19632b62 android.hardware.graphics.bufferqueue@2.0::types
+7a2d64095252f85781b2d521f4f11d04ce774544feececcec2088c568656e93c android.hardware.graphics.common@1.2::types
+3dff04a36b86660b5807414587e530bb0c294ed56fdff06f8915ba0a9b73f974 android.hardware.graphics.composer@2.3::IComposer
+ed0cf91532e88dff073cf7f45b9c65ee1c88553ebcb97892f7b7072abb9b822a android.hardware.graphics.composer@2.3::IComposerClient
+5c8bf8e1af9efe225a4661db8c08ff1b7e13fdc8ed49f35291bd0b6c9436b8f2 android.hardware.graphics.mapper@3.0::IMapper
+7183d9d9acfa41a61a64bdfed548e98299265a7bb1821a3ed204173b5c2cfd4a android.hardware.graphics.mapper@3.0::types
 c3f831a66d5815baf74f5b82fe79cf099542ddae4dfab3f388e1d41828e794fc android.hardware.health.storage@1.0::IGarbageCollectCallback
 dd1ec219f5d2e2b33c6c0bcb92e63bbedb36f7c716413462848f6b6ae74fc864 android.hardware.health.storage@1.0::IStorage
 2b4a14661e6a38617b7dd0c6ebb66a56a90e564674ac7697a14cb8a0cab92b2f android.hardware.health.storage@1.0::types
+30006fde4cb1f255f2530208728bff692100411b20af5b66fa31a9196d51f00b android.hardware.input.classifier@1.0::IInputClassifier
+0300c7667030da36c3de585f176ce18ff4b0d2615446d4930f331097378c06ef android.hardware.input.common@1.0::types
+24ae089981d58bc4cc74d75a6055bf357338ae6744ce1b467c5b4a9c470aba6d android.hardware.media.bufferpool@2.0::IAccessor
+897f45ee7db24ef227dea83ca3e4de72d53ff6bb7adc7983c90a650a1a6ff576 android.hardware.media.bufferpool@2.0::IClientManager
+aee53b2865b4f7939fb3df6fae758d9750c14f93dd454b479fc74aa7978fda4f android.hardware.media.bufferpool@2.0::IConnection
+0bf3758eeeb05767830ea87041214be80968c4679fb73577ac5b3091841ee71f android.hardware.media.bufferpool@2.0::IObserver
+82255e252ae215382473ad2e5ac7a2814a439a24f0092551aad7a2f89c6e9546 android.hardware.media.bufferpool@2.0::types
+fd4725732511b8ae124b868fd0b2090386663dffc5e67dfd0d0b4a0b49c335db android.hardware.media.c2@1.0::IComponent
+389d06e4a4ecf60f828a260045b0c327a5ae883ee0856a3c054556dd22b1f450 android.hardware.media.c2@1.0::IComponentInterface
+5ee0c02265c5505ade189796bef46697df4e0563e3544bb0c934855b34694b07 android.hardware.media.c2@1.0::IComponentListener
+43d70bcdc63b3d042bac3c3297f5d941dfabbd08f3ceb96b6016cc14f6e34ba3 android.hardware.media.c2@1.0::IComponentStore
+d36f747f9c9a8f2f21db2f8323c2d755dd08b34ce813932d7339979f7d490dab android.hardware.media.c2@1.0::IConfigurable
+cd2bd9f424515aeb0c2b91f3bb879797defb5b846b8660784b68d225285bcdff android.hardware.media.c2@1.0::IInputSink
+c3dfaa1fcd452c6cfc26d8dcbb67b71b08a1fe6dad5f87427e93d11a95372b05 android.hardware.media.c2@1.0::IInputSurface
+0a786a19e6753f9774a7ca7781c2a2edfe5c0b5fa112355dfa0e50ebedeb08b9 android.hardware.media.c2@1.0::IInputSurfaceConnection
+4cb139f729c29d8d6f4ecdab149c4feb571dad8a06e56cd57fcb52e70208bab4 android.hardware.media.c2@1.0::types
 4880af120fc1640225abdc2c60bda6d79617d73484d5124913c7278af3b11e2d android.hardware.neuralnetworks@1.2::IBurstCallback
 19877e466ad8c6ed42b38050b77bd010cf7800ff365fdc8574f45bbfda03a758 android.hardware.neuralnetworks@1.2::IBurstContext
 96249c852dabeefa3a9496ecdfc44681a071c665bfbf88527bf775c88bf1ab1b android.hardware.neuralnetworks@1.2::IDevice
@@ -453,7 +513,7 @@
 abf98c2ae08bf765db54edc8068e36d52eb558cff6706b6fd7c18c65a1f3fc18 android.hardware.nfc@1.2::types
 4cb252dc6372a874aef666b92a6e9529915aa187521a700f0789065c3c702ead android.hardware.power.stats@1.0::IPowerStats
 2043037d5baaff604805757d06979aa861013a1e87430db745265339a8681f79 android.hardware.power.stats@1.0::types
-11620ce020b6ef8f5b63eb2a39390de4a2fbbccc0a5e558b5b1a0e22e33f63cf android.hardware.radio@1.3::IRadio
+d5545a4090e5cf8b7f844121377d580926cb9137d693d8c66772ef99ca23e514 android.hardware.radio@1.3::IRadio
 e9d0f11a52715f5a29d89e2d8e2e21db1e16a43174af6b9d51a62d705cda1455 android.hardware.radio@1.3::IRadioIndication
 d233f0da44f55fdef0a95db5229231412787bb67695cd1ea197ce89a3c2908b9 android.hardware.radio@1.3::IRadioResponse
 750a363c8cec70baa1aac19e275c15233c5898e93c6bb5155fa2ca7f365490dc android.hardware.radio@1.3::types
@@ -470,3 +530,26 @@
 93b8102078e25057ae347ac9704e87529eb26121c2a1b419b362dd36eccefc4d android.hardware.radio.config@1.2::types
 08d439c463e4044fa78874037d8e8379aa3cabecde32f08a775897eea5a538af android.hardware.secure_element@1.1::ISecureElement
 b53ac9d61c24efb16a2d63a861cef20680f6d57adb244a03b9778c675550628b android.hardware.secure_element@1.1::ISecureElementHalCallback
+3702b1c52c0bb3427244618e9e7975c05228bf4ceb8720da7a93603a71cb0368 android.hardware.sensors@2.0::ISensors
+ae5faa38538a9f50eb71eb7f9b998271124d2c64b761cb11c4d820c7732b4ddc android.hardware.sensors@2.0::ISensorsCallback
+3a98242a57d0820dacaca0f7db52bec433eae1f21c498763c6f1ece611c3967b android.hardware.sensors@2.0::types
+ce4b98211959449361146d4b1e5554dc841ceb4d4577154d7b2fb6d1eb504f76 android.hardware.soundtrigger@2.2::ISoundTriggerHw
+bd88b48639cae30982021024e22371076c76faa8466e38ca598529452b618eae android.hardware.thermal@2.0::IThermal
+cc4d2ef36da776c475ad054f0f3416d8a8865def9d9e2129f10074b28e36d203 android.hardware.thermal@2.0::IThermalChangedCallback
+b47f90302595874dfddb19bd05a054727bf18b3a930bc810ea14957b859ae8bf android.hardware.thermal@2.0::types
+61bc302e7c974c59b25898c585c6e9685e8a81021b1bed3eedf5224198f2785a android.hardware.usb@1.2::IUsb
+46996cd2a1c66261a75a1f6ecada77eeb5861eb264fa39b996548fe0a7f22dd3 android.hardware.usb@1.2::IUsbCallback
+3bbaa8cbc5d6b1da21f5509b2b641e05fc7eeca1354751eb1bb3cf37f89aa32f android.hardware.usb@1.2::types
+92c1a726c80970d623b891f7c2f9a989a40a15ee1244092b49f4eb6adcdce4e9 android.hardware.vibrator@1.3::IVibrator
+f19832856a3f53ced5ef91d3cc630a57fb7f4d4ce15f364dbed09099b89f6830 android.hardware.wifi@1.3::IWifi
+7c6799c19bfdb3dec016b751556fe246cf7d37191ee7bb82a0091ab9fbf6f2fb android.hardware.wifi@1.3::IWifiChip
+3bef30e8b61ab050c0f6fd26572712be5ebb7707d624c9aa6c74bbb9d6a5b4a9 android.hardware.wifi@1.3::IWifiStaIface
+f3dbd8dd0d6333c005610288a4785d0ef79a72a7bbe6d0a46d46fa89fc886f1e android.hardware.wifi@1.3::types
+2fae61e962f68091335f7ff4581fcfe2e28ce7f6132d7a712fa13d7965543e4d android.hardware.wifi.hostapd@1.1::IHostapd
+913e66d8790c4e494950f1cbc259173b45d9e7bf9f1e8fc0c6a3623128290f4d android.hardware.wifi.hostapd@1.1::IHostapdCallback
+067b22efc50529a88d650fe7400603429d1164a47ee96a17476fdb0aadd6b4d3 android.hardware.wifi.supplicant@1.2::ISupplicant
+120211371fdd29fb134837071d432a302d7b60e9b95af611dd8dde86bd1f77ee android.hardware.wifi.supplicant@1.2::ISupplicantP2pIface
+7efe2b057e9f9387b3500e67af97942aa7c8008e6ee7d8dcaae4107fda84016b android.hardware.wifi.supplicant@1.2::ISupplicantStaIface
+09e08b5d12b109562ecdd8882532fd1f2c4639588e07769d5c7396b7c5b9f34f android.hardware.wifi.supplicant@1.2::ISupplicantStaIfaceCallback
+efbb061c969fa9553d243da6ee23b83fe5d4aa663a7b8896adc52e2b015bc2f3 android.hardware.wifi.supplicant@1.2::ISupplicantStaNetwork
+cfa81f229b69f9011c58f48264fcb552447430fe68610eac514e811e65bc306a android.hardware.wifi.supplicant@1.2::types
diff --git a/drm/1.0/default/Android.mk b/drm/1.0/default/Android.mk
index 99773be..d66f377 100644
--- a/drm/1.0/default/Android.mk
+++ b/drm/1.0/default/Android.mk
@@ -19,39 +19,23 @@
 LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
+
+include $(LOCAL_PATH)/common_default_service.mk
 LOCAL_MODULE := android.hardware.drm@1.0-service
 LOCAL_INIT_RC := android.hardware.drm@1.0-service.rc
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_SRC_FILES := \
-  service.cpp \
+LOCAL_SRC_FILES := service.cpp
 
-LOCAL_SHARED_LIBRARIES := \
-  android.hardware.drm@1.0 \
-  android.hidl.memory@1.0 \
-  libhidlbase \
-  libhidltransport \
-  libhardware \
-  liblog \
-  libutils \
-  libbinder \
+include $(BUILD_EXECUTABLE)
 
-LOCAL_STATIC_LIBRARIES := \
-  android.hardware.drm@1.0-helper \
+############# Build legacy drm lazy service ############
 
-LOCAL_C_INCLUDES := \
-  hardware/interfaces/drm
+include $(CLEAR_VARS)
 
-LOCAL_HEADER_LIBRARIES := \
-  media_plugin_headers
-
-# TODO(b/18948909) Some legacy DRM plugins only support 32-bit. They need to be
-# migrated to 64-bit. Once all of a device's legacy DRM plugins support 64-bit,
-# that device can turn on TARGET_ENABLE_MEDIADRM_64 to build this service as
-# 64-bit.
-ifneq ($(TARGET_ENABLE_MEDIADRM_64), true)
-LOCAL_32_BIT_ONLY := true
-endif
+include $(LOCAL_PATH)/common_default_service.mk
+LOCAL_MODULE := android.hardware.drm@1.0-service-lazy
+LOCAL_OVERRIDES_MODULES := android.hardware.drm@1.0-service
+LOCAL_INIT_RC := android.hardware.drm@1.0-service-lazy.rc
+LOCAL_SRC_FILES := serviceLazy.cpp
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/drm/1.0/default/CryptoPlugin.cpp b/drm/1.0/default/CryptoPlugin.cpp
index f9c868d..666653b 100644
--- a/drm/1.0/default/CryptoPlugin.cpp
+++ b/drm/1.0/default/CryptoPlugin.cpp
@@ -52,7 +52,6 @@
     Return<void> CryptoPlugin::setSharedBufferBase(const hidl_memory& base,
             uint32_t bufferId) {
         sp<IMemory> hidlMemory = mapMemory(base);
-        ALOGE_IF(hidlMemory == nullptr, "mapMemory returns nullptr");
 
         // allow mapMemory to return nullptr
         mSharedBufferMap[bufferId] = hidlMemory;
diff --git a/drm/1.0/default/android.hardware.drm@1.0-service-lazy.rc b/drm/1.0/default/android.hardware.drm@1.0-service-lazy.rc
new file mode 100644
index 0000000..4b32f7f
--- /dev/null
+++ b/drm/1.0/default/android.hardware.drm@1.0-service-lazy.rc
@@ -0,0 +1,10 @@
+service vendor.drm-hal-1-0 /vendor/bin/hw/android.hardware.drm@1.0-service-lazy
+    interface android.hardware.drm@1.0::ICryptoFactory default
+    interface android.hardware.drm@1.0::IDrmFactory default
+    oneshot
+    disabled
+    class hal
+    user media
+    group mediadrm drmrpc
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/drm/1.0/default/android.hardware.drm@1.0-service.rc b/drm/1.0/default/android.hardware.drm@1.0-service.rc
index a3457b5..790eded 100644
--- a/drm/1.0/default/android.hardware.drm@1.0-service.rc
+++ b/drm/1.0/default/android.hardware.drm@1.0-service.rc
@@ -1,4 +1,6 @@
 service vendor.drm-hal-1-0 /vendor/bin/hw/android.hardware.drm@1.0-service
+    interface android.hardware.drm@1.0::ICryptoFactory default
+    interface android.hardware.drm@1.0::IDrmFactory default
     class hal
     user media
     group mediadrm drmrpc
diff --git a/drm/1.0/default/common_default_service.mk b/drm/1.0/default/common_default_service.mk
new file mode 100644
index 0000000..28db567
--- /dev/null
+++ b/drm/1.0/default/common_default_service.mk
@@ -0,0 +1,45 @@
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include $(CLEAR_VARS)
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_MODULE_RELATIVE_PATH := hw
+
+LOCAL_SHARED_LIBRARIES := \
+  android.hardware.drm@1.0 \
+  android.hidl.memory@1.0 \
+  libhidlbase \
+  libhidltransport \
+  libhardware \
+  liblog \
+  libutils \
+  libbinder \
+
+LOCAL_STATIC_LIBRARIES := \
+  android.hardware.drm@1.0-helper \
+
+LOCAL_C_INCLUDES := \
+  hardware/interfaces/drm
+
+LOCAL_HEADER_LIBRARIES := \
+  media_plugin_headers
+
+# TODO(b/18948909) Some legacy DRM plugins only support 32-bit. They need to be
+# migrated to 64-bit. Once all of a device's legacy DRM plugins support 64-bit,
+# that device can turn on TARGET_ENABLE_MEDIADRM_64 to build this service as
+# 64-bit.
+ifneq ($(TARGET_ENABLE_MEDIADRM_64), true)
+LOCAL_32_BIT_ONLY := true
+endif
diff --git a/drm/1.0/default/service.cpp b/drm/1.0/default/service.cpp
index 1a44ce2..98d2c3b 100644
--- a/drm/1.0/default/service.cpp
+++ b/drm/1.0/default/service.cpp
@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#define LOG_TAG "android.hardware.drm@1.0-service"
 
 #include <1.0/default/CryptoFactory.h>
 #include <1.0/default/DrmFactory.h>
@@ -31,15 +30,8 @@
 using android::hardware::drm::V1_0::IDrmFactory;
 
 int main() {
-    ALOGD("android.hardware.drm@1.0-service starting...");
-
-    // The DRM HAL may communicate to other vendor components via
-    // /dev/vndbinder
-    android::ProcessState::initWithDriver("/dev/vndbinder");
-
     configureRpcThreadpool(8, true /* callerWillJoin */);
-    android::status_t status =
-        registerPassthroughServiceImplementation<IDrmFactory>();
+    android::status_t status = registerPassthroughServiceImplementation<IDrmFactory>();
     LOG_ALWAYS_FATAL_IF(
         status != android::OK,
         "Error while registering drm service: %d", status);
diff --git a/drm/1.0/default/serviceLazy.cpp b/drm/1.0/default/serviceLazy.cpp
new file mode 100644
index 0000000..e5068b5
--- /dev/null
+++ b/drm/1.0/default/serviceLazy.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <1.0/default/CryptoFactory.h>
+#include <1.0/default/DrmFactory.h>
+
+#include <hidl/HidlTransportSupport.h>
+#include <hidl/LegacySupport.h>
+
+#include <binder/ProcessState.h>
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::registerLazyPassthroughServiceImplementation;
+
+using android::hardware::drm::V1_0::ICryptoFactory;
+using android::hardware::drm::V1_0::IDrmFactory;
+
+int main() {
+    configureRpcThreadpool(8, true /* callerWillJoin */);
+    android::status_t status = registerLazyPassthroughServiceImplementation<IDrmFactory>();
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering drm service: %d", status);
+    status = registerLazyPassthroughServiceImplementation<ICryptoFactory>();
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering crypto service: %d",
+                        status);
+    joinRpcThreadpool();
+}
diff --git a/drm/1.2/Android.bp b/drm/1.2/Android.bp
new file mode 100644
index 0000000..4e0e8ba
--- /dev/null
+++ b/drm/1.2/Android.bp
@@ -0,0 +1,29 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.drm@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ICryptoFactory.hal",
+        "ICryptoPlugin.hal",
+        "IDrmFactory.hal",
+        "IDrmPlugin.hal",
+        "IDrmPluginListener.hal",
+    ],
+    interfaces: [
+        "android.hardware.drm@1.0",
+        "android.hardware.drm@1.1",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "HdcpLevel",
+        "OfflineLicenseState",
+        "Status",
+    ],
+    gen_java: false,
+}
+
diff --git a/drm/1.2/ICryptoFactory.hal b/drm/1.2/ICryptoFactory.hal
new file mode 100644
index 0000000..c4a9b4b
--- /dev/null
+++ b/drm/1.2/ICryptoFactory.hal
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.drm@1.2;
+
+import @1.1::ICryptoFactory;
+
+/**
+ * ICryptoFactory is the main entry point for interacting with a vendor's
+ * crypto HAL to create crypto plugins. Crypto plugins create crypto sessions
+ * which are used by a codec to decrypt protected video content.
+ *
+ * The 1.2 factory must always create 1.2 ICryptoPlugin interfaces, which are
+ * returned via the 1.0 createPlugin method.
+ *
+ * To use 1.2 features the caller must cast the returned interface to a
+ * 1.2 HAL, using V1_2::IDrmPlugin::castFrom().
+ *
+ * The ICryptoFactory hal is required because all top-level interfaces
+ * have to be updated in a minor uprev.
+ */
+interface ICryptoFactory extends @1.1::ICryptoFactory {
+};
diff --git a/drm/1.2/ICryptoPlugin.hal b/drm/1.2/ICryptoPlugin.hal
new file mode 100644
index 0000000..0700676
--- /dev/null
+++ b/drm/1.2/ICryptoPlugin.hal
@@ -0,0 +1,84 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.drm@1.2;
+
+import @1.0::DestinationBuffer;
+import @1.0::ICryptoPlugin;
+import @1.0::Mode;
+import @1.0::Pattern;
+import @1.0::SessionId;
+import @1.0::SharedBuffer;
+import @1.0::SubSample;
+
+/**
+ * ICryptoPlugin is the HAL for vendor-provided crypto plugins.
+ * It allows crypto sessions to be opened and operated on, to
+ * load crypto keys for a codec to decrypt protected video content.
+ */
+interface ICryptoPlugin extends @1.0::ICryptoPlugin {
+
+    /**
+     * Decrypt an array of subsamples from the source memory buffer to the
+     * destination memory buffer.
+     *
+     * decrypt_1_2() only differs from decrypt() in that additional status
+     * codes must be returned.
+     *
+     * @param secure a flag to indicate if a secure decoder is being used. This
+     *     enables the plugin to configure buffer modes to work consistently with
+     *     a secure decoder.
+     * @param the keyId for the key that is used to do the the decryption. The
+     *     keyId refers to a key in the associated MediaDrm instance.
+     * @param iv the initialization vector to use
+     * @param mode the crypto mode to use
+     * @param pattern the crypto pattern to use
+     * @param subSamples a vector of subsamples indicating the number
+     *     of clear and encrypted bytes to process. This allows the decrypt
+     *     call to operate on a range of subsamples in a single call
+     * @param source the input buffer for the decryption
+     * @param offset the offset of the first byte of encrypted data from
+     *     the base of the source buffer
+     * @param destination the output buffer for the decryption
+     * @return status the status of the call. The status must be OK or one
+     *     of the following errors:
+     *     ERROR_DRM_NO_LICENSE if no license keys have been loaded
+     *     ERROR_DRM_LICENSE_EXPIRED if the license keys have expired
+     *     ERROR_DRM_RESOURCE_BUSY if the resources required to perform
+     *         the decryption are not available
+     *     ERROR_DRM_INSUFFICIENT_OUTPUT_PROTECTION if required output
+     *         protections are not active
+     *     ERROR_DRM_INSUFFICIENT_SECURITY if the security level of the
+     *         device is not sufficient to meet the requirements in
+     *         the license policy
+     *     ERROR_DRM_FRAME_TOO_LARGE if the frame being decrypted into
+     *         the secure output buffer exceeds the size of the buffer
+     *     ERROR_DRM_SESSION_NOT_OPENED if the decrypt session is not
+     *         opened
+     *     ERROR_DRM_DECRYPT if the decrypt operation fails
+     *     ERROR_DRM_INVALID_STATE if the device is in a state where it
+     *         is not able to perform decryption
+     *     ERROR_DRM_CANNOT_HANDLE in other failure cases.
+     *
+     * @return bytesWritten the number of bytes output from the decryption
+     * @return detailedError if the error is a vendor-specific error, the
+     *     vendor's crypto HAL may provide a detailed error string to help
+     *     describe the error.
+     */
+    decrypt_1_2(bool secure, uint8_t[16] keyId, uint8_t[16] iv, Mode mode,
+        Pattern pattern, vec<SubSample> subSamples,
+            SharedBuffer source, uint64_t offset, DestinationBuffer destination)
+        generates(Status status, uint32_t bytesWritten, string detailedError);
+};
diff --git a/drm/1.2/IDrmFactory.hal b/drm/1.2/IDrmFactory.hal
new file mode 100644
index 0000000..682889c
--- /dev/null
+++ b/drm/1.2/IDrmFactory.hal
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.drm@1.2;
+
+import @1.1::IDrmFactory;
+import @1.1::IDrmPlugin;
+import @1.1::SecurityLevel;
+
+/**
+ * IDrmFactory is the main entry point for interacting with a vendor's
+ * drm HAL to create drm plugin instances. A drm plugin instance
+ * creates drm sessions which are used to obtain keys for a crypto
+ * session so it can decrypt protected video content.
+ *
+ * The 1.2 factory must always create 1.2 IDrmPlugin interfaces, which are
+ * returned via the 1.0 createPlugin method.
+ *
+ * To use 1.2 features the caller must cast the returned interface to a
+ * 1.2 HAL, using V1_2::IDrmPlugin::castFrom().
+ *
+ * The IDrmFactory hal is required because all top-level interfaces
+ * have to be updated in a minor uprev.
+ */
+
+interface IDrmFactory extends @1.1::IDrmFactory {
+    /**
+     * Determine if a specific security level is supported by the device.
+     * This method only differs from @1.0 isCryptoSchemeSupported
+     * by the addition of a security level.
+     *
+     * @param uuid identifies the crypto scheme in question
+     * @param mimeType identifies the mime type in question
+     * @param securityLevel specifies the security level required
+     * @return isSupported must be true only if the scheme is supported
+     */
+    isCryptoSchemeSupported_1_2(uint8_t[16] uuid, string mimeType,
+            @1.1::SecurityLevel securityLevel) generates(bool isSupported);
+};
diff --git a/drm/1.2/IDrmPlugin.hal b/drm/1.2/IDrmPlugin.hal
new file mode 100644
index 0000000..7d266f4
--- /dev/null
+++ b/drm/1.2/IDrmPlugin.hal
@@ -0,0 +1,229 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.drm@1.2;
+
+import @1.0::KeyedVector;
+import @1.0::KeyType;
+import @1.0::SessionId;
+import @1.0::Status;
+import @1.1::IDrmPlugin;
+import @1.1::KeyRequestType;
+import @1.2::IDrmPluginListener;
+
+/**
+ * IDrmPlugin is used to interact with a specific drm plugin that was
+ * created by IDrm::createPlugin. A drm plugin provides methods for
+ * obtaining drm keys to be used by a codec to decrypt protected video
+ * content.
+ */
+interface IDrmPlugin extends @1.1::IDrmPlugin {
+
+    /**
+     * The keys in an offline license allow protected content to be
+     * played even if the device is not connected to a network.
+     * Offline licenses are stored on the device after a key
+     * request/response exchange when the key request KeyType is
+     * OFFLINE. Normally each app is responsible for keeping track of
+     * the KeySetIds it has created. In some situations however, it
+     * will be necessary to request the list of stored offline license
+     * KeySetIds. If an app loses the KeySetId for any stored licenses
+     * that it created, for example, it must be able to recover the
+     * stored KeySetIds so those licenses will be removed when they
+     * expire or when the app is uninstalled.
+     * <p>
+     * This method returns a list of the KeySetIds for all offline
+     * licenses. The offline license KeySetId allows an app to query
+     * the status of an offline license or remove it.
+     *
+     * @return status the status of the call. Must be OK or
+     *     ERROR_DRM_INVALID_STATE if the HAL is in a state where the
+     *     KeySetIds can't be returned.
+     * @return a list of offline license keySetIds. If there are no offline
+     *     licenses, the list must be empty and OK must be returned as the
+     *     status.
+     */
+    getOfflineLicenseKeySetIds() generates (@1.0::Status status,
+            vec<KeySetId> keySetIds);
+
+    /**
+     * Normally offline licenses are released using a key
+     * request/response exchange using getKeyRequest where the KeyType
+     * is RELEASE, followed by provideKeyResponse. This allows the
+     * server to cryptographically confirm that the license has been
+     * removed and then adjust the count of offline licenses allocated
+     * to the device.
+     * <p>
+     * In some exceptional situations it will be necessary to directly
+     * remove offline licenses without notifying the server, which is
+     * performed by this method.
+     *
+     * @param keySetId the id of the offline license to remove
+     * @return status the status of the call. Must be one of OK on
+     *     success, BAD_VALUE if the license is not found or
+     *     ERROR_DRM_INVALID_STATE if the HAL is in a state where the
+     *     KeySetIds can't be removed.
+     */
+    removeOfflineLicense(KeySetId keySetId) generates (@1.0::Status status);
+
+    /**
+     * Request the state of an offline license. An offline license must
+     * be usable or inactive. The keys in a usable offline license are
+     * available for decryption. When the offline license state is
+     * inactive, the keys have been marked for release using
+     * getKeyRequest with KeyType RELEASE but the key response has not
+     * been received. The keys in an inactive offline license are not
+     * usable for decryption.
+     *
+     * @param keySetId the id of the offline license
+     * @return status the status of the call. Must be one of OK on
+     *     success, BAD_VALUE if the license is not found or
+     *     ERROR_DRM_INVALID_STATE if the HAL is in a state where the
+     *     offline license state can't be queried.
+     * @return the offline license state, one of USABLE or INACTIVE.
+     *     If the return status is not OK then state must be set to
+     *     UNKNOWN.
+     */
+    getOfflineLicenseState(KeySetId keySetId) generates (
+            @1.0::Status status, OfflineLicenseState state);
+
+    /**
+     * A key request/response exchange occurs between the app and a License
+     * Server to obtain the keys required to decrypt the content.
+     * getKeyRequest_1_2() is used to obtain an opaque key request blob that is
+     * delivered to the license server.
+     *
+     * getKeyRequest_1_2() only differs from getKeyRequest_1_1() in that
+     *     additional status codes must be returned.
+     *
+     * @param scope either a sessionId or a keySetId, depending on the
+     *     specified keyType. When the keyType is OFFLINE or STREAMING, scope
+     *     must be set to the sessionId the keys will be provided to. When the
+     *     keyType is RELEASE, scope must be set to the keySetId of the keys
+     *     being released.
+     * @param initData container-specific data, its meaning is interpreted
+     *     based on the mime type provided in the mimeType parameter. It could
+     *     contain, for example, the content ID, key ID or other data obtained
+     *     from the content metadata that is required to generate the key
+     *     request. initData must be empty when keyType is RELEASE.
+     * @param mimeType identifies the mime type of the content
+     * @param keyType specifies if the keys are to be used for streaming,
+     *     offline or a release
+     * @param optionalParameters included in the key request message to
+     *     allow a client application to provide additional message parameters
+     *     to the server.
+     * @return status the status of the call. The status must be OK or one of
+     *     the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is
+     *     not opened, ERROR_DRM_NOT_PROVISIONED if the device requires
+     *     provisioning before it is able to generate a key request,
+     *     ERROR_DRM_RESOURCE_CONTENTION if client applications using the hal
+     *     are temporarily exceeding the available crypto resources such that a
+     *     retry of the operation is likely to succeed, ERROR_DRM_CANNOT_HANDLE
+     *     if getKeyRequest is not supported at the time of the call, BAD_VALUE
+     *     if any parameters are invalid or ERROR_DRM_INVALID_STATE if the HAL
+     *     is in a state where a key request cannot be generated.
+     * @return request if successful, the opaque key request blob is returned
+     * @return requestType indicates type information about the returned
+     *      request. The type must be one of INITIAL, RENEWAL, RELEASE, NONE or
+     *      UPDATE. An INITIAL request is the first key request for a
+     *      license. RENEWAL is a subsequent key request used to refresh the
+     *      keys in a license. RELEASE corresponds to a keyType of RELEASE,
+     *      which indicates keys are being released. NONE indicates that no
+     *      request is needed because the keys are already loaded. UPDATE
+     *      indicates that the keys need to be refetched after the initial
+     *      license request.
+     * @return defaultUrl the URL that the request may be sent to, if
+     *      provided by the drm HAL. The app can choose to override this URL.
+     */
+    getKeyRequest_1_2(vec<uint8_t> scope, vec<uint8_t> initData,
+            string mimeType, KeyType keyType, KeyedVector optionalParameters)
+        generates (Status status, vec<uint8_t> request,
+                KeyRequestType requestType, string defaultUrl);
+
+    /**
+     * A provision request/response exchange occurs between the app and a
+     * provisioning server to retrieve a device certificate. getProvisionRequest
+     * is used to obtain an opaque provisioning request blob that is delivered
+     * to the provisioning server.
+     *
+     * getProvisionRequest_1_2() only differs from getProvisionRequest_1_0() in
+     *     that additional status codes must be returned.
+     *
+     * @param certificateType the type of certificate requested, e.g. "X.509"
+     * @param certificateAuthority identifies the certificate authority. A
+     *     certificate authority (CA) is an entity which issues digital
+     *     certificates for use by other parties. It is an example of a trusted
+     *     third party.
+     * @return status the status of the call. The status must be OK or one of
+     *     the following errors: ERROR_DRM_RESOURCE_CONTENTION if client
+     *     applications using the hal are temporarily exceeding the available
+     *     crypto resources such that a retry of the operation is likely to
+     *     succeed, ERROR_DRM_CANNOT_HANDLE if the drm scheme does not require
+     *     provisioning or ERROR_DRM_INVALID_STATE if the HAL is in a state
+     *     where the provision request cannot be generated.
+     * @return request if successful the opaque certificate request blob
+     *     is returned
+     * @return defaultUrl URL that the provisioning request may be
+     *     sent to, if known by the HAL implementation. An app can choose to
+     *     override this URL. If the HAL implementation does not provide a
+     *     defaultUrl, the returned string must be empty.
+     */
+    getProvisionRequest_1_2(string certificateType, string certificateAuthority)
+        generates (Status status, vec<uint8_t> request, string defaultUrl);
+
+    /**
+     * Return the currently negotiated and max supported HDCP levels.
+     *
+     * This method only differs from @1.1 version by the addition of
+     * support for HDCP 2.3.
+     *
+     * The current level is based on the display(s) the device is connected to.
+     * If multiple HDCP-capable displays are simultaneously connected to
+     * separate interfaces, this method returns the lowest negotiated HDCP level
+     * of all interfaces.
+     *
+     * The maximum HDCP level is the highest level that can potentially be
+     * negotiated. It is a constant for any device, i.e. it does not depend on
+     * downstream receiving devices that could be connected. For example, if
+     * the device has HDCP 1.x keys and is capable of negotiating HDCP 1.x, but
+     * does not have HDCP 2.x keys, then the maximum HDCP capability would be
+     * reported as 1.x. If multiple HDCP-capable interfaces are present, it
+     * indicates the highest of the maximum HDCP levels of all interfaces.
+     *
+     * This method should only be used for informational purposes, not for
+     * enforcing compliance with HDCP requirements. Trusted enforcement of HDCP
+     * policies must be handled by the DRM system.
+     *
+     * @return status the status of the call. The status must be OK or
+     *         ERROR_DRM_INVALID_STATE if the HAL is in a state where the HDCP
+     *         level cannot be queried.
+     * @return connectedLevel the lowest HDCP level for any connected
+     *         displays
+     * @return maxLevel the highest HDCP level that can be supported
+     *         by the device
+     */
+    getHdcpLevels_1_2() generates (Status status, HdcpLevel connectedLevel,
+            HdcpLevel maxLevel);
+
+    /**
+     * Send a session lost state event to the listener. This event
+     * indicates that a session's state has become invalid because the
+     * device crypto hardware is incapable of retaining crypto session
+     * state across suspend and resume cycles.
+     *
+     * @param sessionId identifies the session the event originated from
+     */
+    sendSessionLostState(SessionId sessionId);
+};
diff --git a/drm/1.2/IDrmPluginListener.hal b/drm/1.2/IDrmPluginListener.hal
new file mode 100644
index 0000000..a6bd6c9
--- /dev/null
+++ b/drm/1.2/IDrmPluginListener.hal
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.drm@1.2;
+
+import @1.0::IDrmPluginListener;
+import @1.0::SessionId;
+
+/**
+ * IDrmPluginListener is a listener interface for Drm events sent from an
+ * IDrmPlugin instance.
+ */
+interface IDrmPluginListener extends @1.0::IDrmPluginListener {
+    /**
+     * Some device crypto hardware is incapable of retaining crypto
+     * session state across suspend and resume cycles. A
+     * SessionLostState event must be signaled when a session has
+     * become invalid for this reason. This event must not be used to
+     * indicate a failure in the crypto system. Closing the session
+     * and opening a new one must allow the application to resume
+     * normal use of the drm hal module.
+     *
+     * @param sessionId identifies the session that has been invalidated
+     */
+     oneway sendSessionLostState(SessionId sessionId);
+};
diff --git a/drm/1.2/types.hal b/drm/1.2/types.hal
new file mode 100644
index 0000000..28c8e67
--- /dev/null
+++ b/drm/1.2/types.hal
@@ -0,0 +1,95 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.drm@1.2;
+
+import @1.0::Status;
+import @1.1::HdcpLevel;
+
+enum OfflineLicenseState : uint32_t {
+    /**
+     * Offline license state is unknown
+     */
+    UNKNOWN,
+
+    /**
+     * Offline license state is usable, the keys are usable for decryption.
+     */
+    USABLE,
+
+    /**
+     * Offline license state is inactive, the keys have been marked for
+     * release using {@link #getKeyRequest} with KEY_TYPE_RELEASE but the
+     * key response has not been received.
+     */
+    INACTIVE
+};
+
+enum Status : @1.0::Status {
+    /**
+     * The drm HAL module must return ERROR_DRM_INSUFFICIENT_SECURITY
+     * from the crypto plugin decrypt method when the security level
+     * of the device is not sufficient to meet the requirements in the
+     * license policy.
+     */
+    ERROR_DRM_INSUFFICIENT_SECURITY,
+
+    /**
+     * The drm HAL module must return ERROR_FRAME_TOO_LARGE from the
+     * decrypt method when the frame being decrypted into the secure
+     * output buffer exceeds the size of the buffer.
+     */
+    ERROR_DRM_FRAME_TOO_LARGE,
+
+    /**
+     * This error must be returned from any session method when an
+     * attempt is made to use the session after the crypto hardware
+     * state has been invalidated. Some devices are not able to
+     * retain crypto session state across device suspend/resume which
+     * results in invalid session state.
+     */
+    ERROR_DRM_SESSION_LOST_STATE,
+
+     /**
+      * The drm HAL module must return this error if client
+      * applications using the hal are temporarily exceeding the
+      * capacity of available crypto resources such that a retry of
+      * the operation is likely to succeed.
+      */
+    ERROR_DRM_RESOURCE_CONTENTION,
+};
+
+/**
+ * HDCP specifications are defined by Digital Content Protection LLC (DCP).
+ *   "HDCP Specification Rev. 2.3 Interface Independent Adaptation"
+ *   "HDCP 2.3 on HDMI Specification"
+ */
+enum HdcpLevel : @1.1::HdcpLevel {
+    /**
+     * HDCP version 2.3 Type 1.
+     */
+    HDCP_V2_3
+};
+
+
+/**
+ * KeySetId is an identifier that references a set of keys in an
+ * offline license. The keySetId is created by the HAL implementation
+ * and returned from provideKeyResponse and getOfflineLicenseIds. The
+ * framework passes KeySetId back to the HAL when referring to the key
+ * set in methods that take a KeySetId as an input parameter.
+ */
+typedef vec<uint8_t> KeySetId;
diff --git a/gnss/1.1/default/Android.bp b/gnss/1.1/default/Android.bp
index 44aed2b..8c3aac4 100644
--- a/gnss/1.1/default/Android.bp
+++ b/gnss/1.1/default/Android.bp
@@ -18,4 +18,7 @@
         "android.hardware.gnss@1.1",
         "android.hardware.gnss@1.0",
     ],
+    static_libs: [
+        "android.hardware.gnss@common-default-lib",
+    ],
 }
diff --git a/gnss/1.1/default/Gnss.cpp b/gnss/1.1/default/Gnss.cpp
index bbf1cd3..4abe707 100644
--- a/gnss/1.1/default/Gnss.cpp
+++ b/gnss/1.1/default/Gnss.cpp
@@ -4,9 +4,9 @@
 #include <log/log.h>
 
 #include "Gnss.h"
-#include "GnssConstants.h"
 #include "GnssDebug.h"
 #include "GnssMeasurement.h"
+#include "Utils.h"
 
 namespace android {
 namespace hardware {
@@ -14,6 +14,7 @@
 namespace V1_1 {
 namespace implementation {
 
+using ::android::hardware::gnss::common::Utils;
 using GnssSvFlags = IGnssCallback::GnssSvFlags;
 
 const uint32_t MIN_INTERVAL_MILLIS = 100;
@@ -43,7 +44,7 @@
             auto svStatus = this->getMockSvStatus();
             this->reportSvStatus(svStatus);
 
-            auto location = this->getMockLocation();
+            auto location = Utils::getMockLocation();
             this->reportLocation(location);
 
             std::this_thread::sleep_for(std::chrono::milliseconds(mMinIntervalMs));
@@ -193,44 +194,17 @@
     return true;
 }
 
-Return<GnssLocation> Gnss::getMockLocation() const {
-    GnssLocation location = {.gnssLocationFlags = 0xFF,
-                             .latitudeDegrees = kMockLatitudeDegrees,
-                             .longitudeDegrees = kMockLongitudeDegrees,
-                             .altitudeMeters = kMockAltitudeMeters,
-                             .speedMetersPerSec = kMockSpeedMetersPerSec,
-                             .bearingDegrees = kMockBearingDegrees,
-                             .horizontalAccuracyMeters = kMockHorizontalAccuracyMeters,
-                             .verticalAccuracyMeters = kMockVerticalAccuracyMeters,
-                             .speedAccuracyMetersPerSecond = kMockSpeedAccuracyMetersPerSecond,
-                             .bearingAccuracyDegrees = kMockBearingAccuracyDegrees,
-                             .timestamp = kMockTimestamp};
-    return location;
-}
-
-Return<GnssSvInfo> Gnss::getSvInfo(int16_t svid, GnssConstellationType type, float cN0DbHz,
-                                   float elevationDegrees, float azimuthDegrees) const {
-    GnssSvInfo svInfo = {.svid = svid,
-                         .constellation = type,
-                         .cN0Dbhz = cN0DbHz,
-                         .elevationDegrees = elevationDegrees,
-                         .azimuthDegrees = azimuthDegrees,
-                         .svFlag = GnssSvFlags::USED_IN_FIX | GnssSvFlags::HAS_EPHEMERIS_DATA |
-                                   GnssSvFlags::HAS_ALMANAC_DATA};
-    return svInfo;
-}
-
 Return<GnssSvStatus> Gnss::getMockSvStatus() const {
     std::unique_lock<std::recursive_mutex> lock(mGnssConfiguration->getMutex());
     GnssSvInfo mockGnssSvInfoList[] = {
-        getSvInfo(3, GnssConstellationType::GPS, 32.5, 59.1, 166.5),
-        getSvInfo(5, GnssConstellationType::GPS, 27.0, 29.0, 56.5),
-        getSvInfo(17, GnssConstellationType::GPS, 30.5, 71.0, 77.0),
-        getSvInfo(26, GnssConstellationType::GPS, 24.1, 28.0, 253.0),
-        getSvInfo(5, GnssConstellationType::GLONASS, 20.5, 11.5, 116.0),
-        getSvInfo(17, GnssConstellationType::GLONASS, 21.5, 28.5, 186.0),
-        getSvInfo(18, GnssConstellationType::GLONASS, 28.3, 38.8, 69.0),
-        getSvInfo(10, GnssConstellationType::GLONASS, 25.0, 66.0, 247.0)};
+            Utils::getSvInfo(3, GnssConstellationType::GPS, 32.5, 59.1, 166.5),
+            Utils::getSvInfo(5, GnssConstellationType::GPS, 27.0, 29.0, 56.5),
+            Utils::getSvInfo(17, GnssConstellationType::GPS, 30.5, 71.0, 77.0),
+            Utils::getSvInfo(26, GnssConstellationType::GPS, 24.1, 28.0, 253.0),
+            Utils::getSvInfo(5, GnssConstellationType::GLONASS, 20.5, 11.5, 116.0),
+            Utils::getSvInfo(17, GnssConstellationType::GLONASS, 21.5, 28.5, 186.0),
+            Utils::getSvInfo(18, GnssConstellationType::GLONASS, 28.3, 38.8, 69.0),
+            Utils::getSvInfo(10, GnssConstellationType::GLONASS, 25.0, 66.0, 247.0)};
 
     GnssSvStatus svStatus = {.numSvs = sizeof(mockGnssSvInfoList) / sizeof(GnssSvInfo)};
     for (uint32_t i = 0; i < svStatus.numSvs; i++) {
diff --git a/gnss/1.1/default/Gnss.h b/gnss/1.1/default/Gnss.h
index 99af34c..21b66a2 100644
--- a/gnss/1.1/default/Gnss.h
+++ b/gnss/1.1/default/Gnss.h
@@ -84,10 +84,7 @@
 
     // Methods from ::android::hidl::base::V1_0::IBase follow.
    private:
-    Return<GnssLocation> getMockLocation() const;
     Return<GnssSvStatus> getMockSvStatus() const;
-    Return<GnssSvInfo> getSvInfo(int16_t svid, GnssConstellationType type, float cN0DbHz,
-                                 float elevationDegress, float azimuthDegress) const;
     Return<void> reportLocation(const GnssLocation&) const;
     Return<void> reportSvStatus(const GnssSvStatus&) const;
 
diff --git a/gnss/1.1/default/GnssConstants.h b/gnss/1.1/default/GnssConstants.h
deleted file mode 100644
index 9ce1a12..0000000
--- a/gnss/1.1/default/GnssConstants.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef android_hardware_gnss_V1_1_GnssConstants_H_
-#define android_hardware_gnss_V1_1_GnssConstants_H_
-
-namespace android {
-namespace hardware {
-namespace gnss {
-namespace V1_1 {
-namespace implementation {
-
-const float kMockLatitudeDegrees = 37.4219999;
-const float kMockLongitudeDegrees = -122.0840575;
-const float kMockAltitudeMeters = 1.60062531;
-const float kMockSpeedMetersPerSec = 0;
-const float kMockBearingDegrees = 0;
-const float kMockHorizontalAccuracyMeters = 5;
-const float kMockVerticalAccuracyMeters = 5;
-const float kMockSpeedAccuracyMetersPerSecond = 1;
-const float kMockBearingAccuracyDegrees = 90;
-const int64_t kMockTimestamp = 1519930775453L;
-
-}  // namespace implementation
-}  // namespace V1_1
-}  // namespace gnss
-}  // namespace hardware
-}  // namespace android
-
-#endif  // android_hardware_gnss_V1_1_GnssConstants_H_
diff --git a/gnss/1.1/default/GnssDebug.cpp b/gnss/1.1/default/GnssDebug.cpp
index 62870e4..471ed24 100644
--- a/gnss/1.1/default/GnssDebug.cpp
+++ b/gnss/1.1/default/GnssDebug.cpp
@@ -18,9 +18,11 @@
 
 #include <log/log.h>
 
-#include "GnssConstants.h"
+#include "Constants.h"
 #include "GnssDebug.h"
 
+using namespace ::android::hardware::gnss::common;
+
 namespace android {
 namespace hardware {
 namespace gnss {
diff --git a/gnss/1.1/vts/functional/Android.bp b/gnss/1.1/vts/functional/Android.bp
index 9892eca..147a470 100644
--- a/gnss/1.1/vts/functional/Android.bp
+++ b/gnss/1.1/vts/functional/Android.bp
@@ -25,6 +25,7 @@
     static_libs: [
         "android.hardware.gnss@1.0",
         "android.hardware.gnss@1.1",
+        "android.hardware.gnss@common-vts-lib",
     ],
     test_suites: ["general-tests"],
 }
diff --git a/gnss/1.1/vts/functional/gnss_hal_test.cpp b/gnss/1.1/vts/functional/gnss_hal_test.cpp
index 433f5cb..381ac1d 100644
--- a/gnss/1.1/vts/functional/gnss_hal_test.cpp
+++ b/gnss/1.1/vts/functional/gnss_hal_test.cpp
@@ -17,8 +17,10 @@
 #define LOG_TAG "GnssHalTest"
 
 #include <gnss_hal_test.h>
-
 #include <chrono>
+#include "Utils.h"
+
+using ::android::hardware::gnss::common::Utils;
 
 // Implementations for the main test class for GNSS HAL
 GnssHalTest::GnssHalTest()
@@ -124,69 +126,7 @@
 void GnssHalTest::CheckLocation(GnssLocation& location, bool check_speed) {
     bool check_more_accuracies = (info_called_count_ > 0 && last_info_.yearOfHw >= 2017);
 
-    EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_LAT_LONG);
-    EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_ALTITUDE);
-    if (check_speed) {
-        EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED);
-    }
-    EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_HORIZONTAL_ACCURACY);
-    // New uncertainties available in O must be provided,
-    // at least when paired with modern hardware (2017+)
-    if (check_more_accuracies) {
-        EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_VERTICAL_ACCURACY);
-        if (check_speed) {
-            EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED_ACCURACY);
-            if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING) {
-                EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING_ACCURACY);
-            }
-        }
-    }
-    EXPECT_GE(location.latitudeDegrees, -90.0);
-    EXPECT_LE(location.latitudeDegrees, 90.0);
-    EXPECT_GE(location.longitudeDegrees, -180.0);
-    EXPECT_LE(location.longitudeDegrees, 180.0);
-    EXPECT_GE(location.altitudeMeters, -1000.0);
-    EXPECT_LE(location.altitudeMeters, 30000.0);
-    if (check_speed) {
-        EXPECT_GE(location.speedMetersPerSec, 0.0);
-        EXPECT_LE(location.speedMetersPerSec, 5.0);  // VTS tests are stationary.
-
-        // Non-zero speeds must be reported with an associated bearing
-        if (location.speedMetersPerSec > 0.0) {
-            EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING);
-        }
-    }
-
-    /*
-     * Tolerating some especially high values for accuracy estimate, in case of
-     * first fix with especially poor geometry (happens occasionally)
-     */
-    EXPECT_GT(location.horizontalAccuracyMeters, 0.0);
-    EXPECT_LE(location.horizontalAccuracyMeters, 250.0);
-
-    /*
-     * Some devices may define bearing as -180 to +180, others as 0 to 360.
-     * Both are okay & understandable.
-     */
-    if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING) {
-        EXPECT_GE(location.bearingDegrees, -180.0);
-        EXPECT_LE(location.bearingDegrees, 360.0);
-    }
-    if (location.gnssLocationFlags & GnssLocationFlags::HAS_VERTICAL_ACCURACY) {
-        EXPECT_GT(location.verticalAccuracyMeters, 0.0);
-        EXPECT_LE(location.verticalAccuracyMeters, 500.0);
-    }
-    if (location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED_ACCURACY) {
-        EXPECT_GT(location.speedAccuracyMetersPerSecond, 0.0);
-        EXPECT_LE(location.speedAccuracyMetersPerSecond, 50.0);
-    }
-    if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING_ACCURACY) {
-        EXPECT_GT(location.bearingAccuracyDegrees, 0.0);
-        EXPECT_LE(location.bearingAccuracyDegrees, 360.0);
-    }
-
-    // Check timestamp > 1.48e12 (47 years in msec - 1970->2017+)
-    EXPECT_GT(location.timestamp, 1.48e12);
+    Utils::checkLocation(location, check_speed, check_more_accuracies);
 }
 
 void GnssHalTest::StartAndCheckLocations(int count) {
diff --git a/gnss/2.0/Android.bp b/gnss/2.0/Android.bp
new file mode 100644
index 0000000..230dd90
--- /dev/null
+++ b/gnss/2.0/Android.bp
@@ -0,0 +1,35 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.gnss@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IAGnss.hal",
+        "IAGnssCallback.hal",
+        "IAGnssRil.hal",
+        "IGnss.hal",
+        "IGnssCallback.hal",
+        "IGnssConfiguration.hal",
+        "IGnssMeasurement.hal",
+        "IGnssMeasurementCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.gnss.measurement_corrections@1.0",
+        "android.hardware.gnss.visibility_control@1.0",
+        "android.hardware.gnss@1.0",
+        "android.hardware.gnss@1.1",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "ElapsedRealtime",
+        "ElapsedRealtimeFlags",
+        "GnssLocation",
+    ],
+    gen_java: true,
+    gen_java_constants: true,
+}
+
diff --git a/gnss/2.0/IAGnss.hal b/gnss/2.0/IAGnss.hal
new file mode 100644
index 0000000..d4e7d2f
--- /dev/null
+++ b/gnss/2.0/IAGnss.hal
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import IAGnssCallback;
+
+/**
+ * Extended interface for Assisted GNSS support.
+ */
+interface IAGnss {
+    enum ApnIpType : uint8_t {
+        INVALID  = 0,
+        IPV4     = 1,
+        IPV6     = 2,
+        IPV4V6   = 3
+    };
+
+    /**
+     * Opens the AGNSS interface and provides the callback routines to the
+     * implementation of this interface.
+     *
+     * @param callback Handle to the AGNSS status callback interface.
+     */
+    setCallback(IAGnssCallback callback);
+
+    /**
+     * Notifies that the AGNSS data connection has been closed.
+     *
+     * @return success True if the operation is successful.
+     */
+    dataConnClosed() generates (bool success);
+
+    /**
+     * Notifies that a data connection is not available for AGNSS.
+     *
+     * @return success True if the operation is successful.
+     */
+    dataConnFailed() generates (bool success);
+
+    /**
+     * Sets the hostname and port for the AGNSS server.
+     *
+     * @param type Specifies if SUPL or C2K.
+     * @param hostname Hostname of the AGNSS server.
+     * @param port Port number associated with the server.
+     *
+     * @return success True if the operation is successful.
+     */
+    setServer(AGnssType type, string hostname, int32_t port)
+        generates (bool success);
+
+    /**
+     * Notifies GNSS that a data connection is available and sets the network handle,
+     * name of the APN, and its IP type to be used for SUPL connections.
+     *
+     * The HAL implementation must use the network handle to set the network for the
+     * SUPL connection sockets using the android_setsocknetwork function. This will ensure
+     * that there is a network path to the SUPL server. The network handle can also be used
+     * to get the IP address of SUPL FQDN using the android_getaddrinfofornetwork() function.
+     *
+     * @param networkHandle Handle representing the network for use with the NDK API.
+     * @param apn Access Point Name (follows regular APN naming convention).
+     * @param apnIpType Specifies IP type of APN.
+     *
+     * @return success True if the operation is successful.
+     */
+    dataConnOpen(net_handle_t networkHandle, string apn, ApnIpType apnIpType)
+        generates (bool success);
+};
\ No newline at end of file
diff --git a/gnss/2.0/IAGnssCallback.hal b/gnss/2.0/IAGnssCallback.hal
new file mode 100644
index 0000000..896be18
--- /dev/null
+++ b/gnss/2.0/IAGnssCallback.hal
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+/** Callback structure for the AGNSS interface. */
+interface IAGnssCallback {
+    /** AGNSS service type **/
+    enum AGnssType : uint8_t {
+        SUPL         = 1,
+        C2K          = 2,
+        SUPL_EIMS    = 3,
+        SUPL_IMS     = 4,
+    };
+
+    enum AGnssStatusValue : uint8_t {
+        /** GNSS requests data connection for AGNSS. */
+        REQUEST_AGNSS_DATA_CONN  = 1,
+        /** GNSS releases the AGNSS data connection. */
+        RELEASE_AGNSS_DATA_CONN  = 2,
+        /** AGNSS data connection initiated */
+        AGNSS_DATA_CONNECTED     = 3,
+        /** AGNSS data connection completed */
+        AGNSS_DATA_CONN_DONE     = 4,
+        /** AGNSS data connection failed */
+        AGNSS_DATA_CONN_FAILED   = 5
+    };
+
+    /**
+     * Callback with AGNSS status information.
+     *
+     * The GNSS HAL implementation must use this method to request the framework to setup
+     * network connection for the specified AGNSS service and to update the connection
+     * status so that the framework can release the resources.
+     *
+     * @param type Type of AGNSS service.
+     * @parama status Status of the data connection.
+     */
+    agnssStatusCb(AGnssType type, AGnssStatusValue status);
+};
\ No newline at end of file
diff --git a/gnss/2.0/IAGnssRil.hal b/gnss/2.0/IAGnssRil.hal
new file mode 100644
index 0000000..00a2e79
--- /dev/null
+++ b/gnss/2.0/IAGnssRil.hal
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import @1.0::IAGnssRil;
+
+/**
+ * Extended interface for AGNSS RIL support. An Assisted GNSS Radio Interface
+ * Layer interface allows the GNSS chipset to request radio interface layer
+ * information from Android platform. Examples of such information are reference
+ * location, unique subscriber ID, phone number string and network availability changes.
+ */
+interface IAGnssRil extends @1.0::IAGnssRil {
+    /** Flags to indicate capabilities of the network */
+    enum NetworkCapability : uint16_t {
+        /** Network is not metered. */
+        NOT_METERED       = 1 << 0,
+        /** Network is not roaming. */
+        NOT_ROAMING       = 1 << 1
+    };
+
+    /** Represents network connection status and capabilities. */
+    struct NetworkAttributes {
+        /** Network handle of the network for use with the NDK API. */
+        net_handle_t networkHandle;
+
+        /**
+         * True indicates that network connectivity exists and it is possible to
+         * establish connections and pass data. If false, only the networkHandle field
+         * is populated to indicate that this network has just disconnected.
+         */
+        bool isConnected;
+
+        /** A set of flags indicating the capabilities of this network. */
+        bitfield<NetworkCapability> capabilities;
+
+        /**
+         * Telephony preferred Access Point Name to use for carrier data connection when
+         * connected to a cellular network. Empty string, otherwise.
+         */
+        string apn;
+    };
+
+    /**
+     * Notifies GNSS of network status changes.
+     *
+     * The framework calls this method to update the GNSS HAL implementation of network
+     * state changes. The methods updateNetworkState() and updateNetworkAvailability
+     * in @1.0::IAGnssRil are deprecated and are not called by the framework.
+     *
+     * @param attributes Updated network attributes.
+     *
+     * @return success True if all parameters were valid and the operation was
+     * successful.
+     */
+    updateNetworkState_2_0(NetworkAttributes attributes) generates (bool success);
+};
diff --git a/gnss/2.0/IGnss.hal b/gnss/2.0/IGnss.hal
new file mode 100644
index 0000000..2c149b7
--- /dev/null
+++ b/gnss/2.0/IGnss.hal
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import android.hardware.gnss.measurement_corrections@1.0::IMeasurementCorrections;
+import android.hardware.gnss.visibility_control@1.0::IGnssVisibilityControl;
+import @1.1::IGnss;
+
+import GnssLocation;
+import IGnssCallback;
+import IGnssConfiguration;
+import IGnssMeasurement;
+import IAGnss;
+import IAGnssRil;
+
+/**
+ * Represents the standard GNSS (Global Navigation Satellite System) interface.
+ *
+ * Due to the introduction of new GNSS HAL package android.hardware.gnss.visibility_control@1.0
+ * the interface @1.0::IGnssNi.hal and @1.0::IGnssNiCallback.hal are deprecated in this version
+ * and are not supported by the framework. The GNSS HAL implementation of this interface
+ * must return nullptr for the following @1.0::IGnss method.
+ *      getExtensionGnssNi() generates (IGnssNi gnssNiIface);
+ */
+interface IGnss extends @1.1::IGnss {
+    /**
+     * Opens the interface and provides the callback routines to the implementation of this
+     * interface.
+     *
+     * @param callback Callback interface for IGnss.
+     *
+     * @return success Returns true on success.
+     */
+    setCallback_2_0(IGnssCallback callback) generates (bool success);
+
+    /**
+     * This method returns the IGnssConfiguration interface.
+     *
+     * @return gnssConfigurationIface Handle to the IGnssConfiguration interface.
+     */
+    getExtensionGnssConfiguration_2_0() generates (IGnssConfiguration gnssConfigurationIface);
+
+    /**
+     * This method returns the IAGnss Interface.
+     *
+     * The getExtensionAGnss() must return nullptr as the @1.0::IAGnss interface is
+     * deprecated.
+     *
+     * @return aGnssIface Handle to the IAGnss interface.
+     */
+    getExtensionAGnss_2_0() generates (IAGnss aGnssIface);
+
+    /**
+     * This method returns the IAGnssRil Interface.
+     *
+     * @return aGnssRilIface Handle to the IAGnssRil interface.
+     */
+    getExtensionAGnssRil_2_0() generates (IAGnssRil aGnssRilIface);
+
+    /**
+     * This method returns the IGnssMeasurement interface.
+     *
+     * Exactly one of getExtensionGnssMeasurement_1_1() and getExtensionGnssMeasurement_2_0() must
+     * return a non-null handle, and the other method must return nullptr.
+     *
+     * @return gnssMeasurementIface Handle to the IGnssMeasurement interface.
+     */
+    getExtensionGnssMeasurement_2_0() generates (IGnssMeasurement gnssMeasurementIface);
+
+    /**
+     * This method returns the IMeasurementCorrections interface.
+     *
+     * @return measurementCorrectionsIface Handle to the IMeasurementCorrections interface.
+     */
+    getExtensionMeasurementCorrections()
+            generates (IMeasurementCorrections measurementCorrectionsIface);
+
+    /**
+     * This method returns the IGnssVisibilityControl interface.
+     *
+     * @return visibilityControlIface Handle to the IGnssVisibilityControl interface.
+     */
+    getExtensionVisibilityControl() generates (IGnssVisibilityControl visibilityControlIface);
+
+    /**
+     * Injects current location from the best available location provider.
+     *
+     * Unlike injectLocation, this method may inject a recent GNSS location from the HAL
+     * implementation, if that is the best available location known to the framework.
+     *
+     * @param location Location information from the best available location provider.
+     *
+     * @return success Returns true if successful.
+     */
+    injectBestLocation_2_0(GnssLocation location) generates (bool success);
+};
\ No newline at end of file
diff --git a/gnss/2.0/IGnssCallback.hal b/gnss/2.0/IGnssCallback.hal
new file mode 100644
index 0000000..e2ac02a
--- /dev/null
+++ b/gnss/2.0/IGnssCallback.hal
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import @1.0::IGnssCallback;
+import @1.1::IGnssCallback;
+import GnssLocation;
+
+/**
+ * The interface is required for the HAL to communicate certain information
+ * like status and location info back to the platform, the platform implements
+ * the interfaces and passes a handle to the HAL.
+ */
+interface IGnssCallback extends @1.1::IGnssCallback {
+
+    /** Flags for the gnssSetCapabilities callback. */
+    @export(name="", value_prefix="GPS_CAPABILITY_")
+    enum Capabilities : @1.0::IGnssCallback.Capabilities {
+        /** GNSS supports line-of-sight satellite identification measurement Corrections */
+        MEASUREMENT_CORRECTIONS_LOS_SATS                        = 1 << 8,
+        /** GNSS supports per satellite excess-path-length measurement Corrections */
+        MEASUREMENT_CORRECTIONS_EXCESS_PATH_LENGTH              = 1 << 9,
+        /** GNSS supports reflecting planes measurement Corrections */
+        MEASUREMENT_CORRECTIONS_REFLECTING_PLANE                = 1 << 10
+    };
+
+    /**
+     * Callback to inform framework of the GNSS engine's capabilities.
+     *
+     * @param capabilities Capability parameter is a bit field of the Capabilities enum.
+     */
+    gnssSetCapabilitiesCb_2_0(bitfield<Capabilities> capabilities);
+
+   /**
+     * Called when a GNSS location is available.
+     *
+     * @param location Location information from HAL.
+     */
+    gnssLocationCb_2_0(GnssLocation location);
+
+};
\ No newline at end of file
diff --git a/gnss/2.0/IGnssConfiguration.hal b/gnss/2.0/IGnssConfiguration.hal
new file mode 100644
index 0000000..90c376e
--- /dev/null
+++ b/gnss/2.0/IGnssConfiguration.hal
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import @1.1::IGnssConfiguration;
+
+/**
+ * Extended interface for GNSS Configuration support.
+ *
+ * Due to the introduction of new GNSS HAL package android.hardware.gnss.visibility_control@1.0
+ * the following methods in @1.0::IGnssConfiguration are deprecated in this version and not
+ * called by the framework.
+ *
+ * setGpsLock(bitfield<GpsLock> lock) generates (bool success);
+ * setSuplEs(bool enabled) generates (bool success);
+ */
+interface IGnssConfiguration extends @1.1::IGnssConfiguration {
+    /**
+     * This method sets the emergency session extension duration. The GNSS HAL
+     * implementation must serve emergency SUPL and Control Plane network initiated
+     * location requests for this extra duration after the user initiated emergency
+     * session ends.
+     *
+     * @param emergencyExtensionSeconds Number of seconds to extend the emergency
+     * session duration post emergency call.
+     *
+     * @return success True if the GNSS HAL implementation accepts and supports the
+     * extended duration for emergency SUPL and Control Plane location requests.
+     */
+    setEsExtensionSec(uint32_t emergencyExtensionSeconds) generates (bool success);
+};
\ No newline at end of file
diff --git a/gnss/2.0/IGnssMeasurement.hal b/gnss/2.0/IGnssMeasurement.hal
new file mode 100644
index 0000000..108f3d2
--- /dev/null
+++ b/gnss/2.0/IGnssMeasurement.hal
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import @1.0::IGnssMeasurement;
+import @1.1::IGnssMeasurement;
+import IGnssMeasurementCallback;
+
+/**
+ * Extended interface for GNSS Measurements support.
+ */
+interface IGnssMeasurement extends @1.1::IGnssMeasurement {
+
+    /**
+     * Initializes the interface and registers the callback routines with the HAL. After a
+     * successful call to 'setCallback_2_0' the HAL must begin to provide updates at an average
+     * output rate of 1Hz (occasional intra-measurement time offsets in the range from 0-2000msec
+     * can be tolerated.)
+     *
+     * @param callback Handle to GnssMeasurement callback interface.
+     * @param enableFullTracking If true, GNSS chipset must switch off duty cycling. In such mode
+     *     no clock discontinuities are expected and, when supported, carrier phase should be
+     *     continuous in good signal conditions. All non-blacklisted, healthy constellations,
+     *     satellites and frequency bands that the chipset supports must be reported in this mode.
+     *     The GNSS chipset is allowed to consume more power in this mode. If false, API must behave
+     *     as in HAL V1_0, optimizing power via duty cycling, constellations and frequency limits,
+     *     etc.
+     *
+     * @return initRet Returns SUCCESS if successful. Returns ERROR_ALREADY_INIT if a callback has
+     *     already been registered without a corresponding call to 'close'. Returns ERROR_GENERIC
+     *     for any other error. The HAL must not generate any other updates upon returning this
+     *     error code.
+     */
+    setCallback_2_0(IGnssMeasurementCallback callback, bool enableFullTracking)
+         generates (GnssMeasurementStatus initRet);
+
+};
diff --git a/gnss/2.0/IGnssMeasurementCallback.hal b/gnss/2.0/IGnssMeasurementCallback.hal
new file mode 100644
index 0000000..d5dc038
--- /dev/null
+++ b/gnss/2.0/IGnssMeasurementCallback.hal
@@ -0,0 +1,510 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import @1.0::IGnssMeasurementCallback;
+import @1.1::IGnssMeasurementCallback;
+import ElapsedRealtime;
+
+/** The callback interface to report measurements from the HAL. */
+interface IGnssMeasurementCallback extends @1.1::IGnssMeasurementCallback {
+    /**
+     * Enumeration of available values for the GNSS Measurement's code type. Similar to the
+     * Attribute field described in RINEX 3.03, e.g., in Tables 4-10, and Table A2 at the RINEX 3.03
+     * Update 1 Document.
+     */
+    enum GnssMeasurementCodeType : uint8_t {
+        /** GALILEO E1A, GALILEO E6A, IRNSS L5A, IRNSS SA. */
+        A = 0,
+
+        /** GALILEO E1B, GALILEO E6B, IRNSS L5B, IRNSS SB. */
+        B = 1,
+
+        /**
+         *  GPS L1 C/A,  GPS L2 C/A, GLONASS G1 C/A, GLONASS G2 C/A, GALILEO E1C, GALILEO E6C, SBAS
+         *  L1 C/A, QZSS L1 C/A, IRNSS L5C.
+         */
+        C = 2,
+
+        /**
+         * GPS L5 I, GLONASS G3 I, GALILEO E5a I, GALILEO E5b I, GALILEO E5a+b I, SBAS L5 I, QZSS L5
+         * I, BDS B1 I, BDS B2 I, BDS B3 I.
+         */
+        I = 3,
+
+        /** GPS L1C (P), GPS L2C (L), QZSS L1C (P), QZSS L2C (L), LEX(6) L. */
+        L = 4,
+
+        /** GPS L1M, GPS L2M. */
+        M = 5,
+
+        /** GPS L1P, GPS L2P, GLONASS G1P, GLONASS G2P. */
+        P = 6,
+
+        /**
+         * GPS L5 Q, GLONASS G3 Q, GALILEO E5a Q, GALILEO E5b Q, GALILEO E5a+b Q, SBAS L5 Q, QZSS L5
+         * Q, BDS B1 Q, BDS B2 Q, BDS B3 Q.
+         */
+        Q = 7,
+
+        /** GPS L1C (D), GPS L2C (M), QZSS L1C (D), QZSS L2C (M), LEX(6) S. */
+        S = 8,
+
+        /** GPS L1 Z-tracking, GPS L2 Z-tracking. */
+        W = 9,
+
+        /**
+         * GPS L1C (D+P), GPS L2C (M+L), GPS L5 (I+Q), GLONASS G3 (I+Q), GALILEO E1 (B+C), GALILEO
+         * E5a (I+Q), GALILEO E5b (I+Q), GALILEO E5a+b(I+Q), GALILEO E6 (B+C), SBAS L5 (I+Q), QZSS
+         * L1C (D+P), QZSS L2C (M+L), QZSS L5 (I+Q), LEX(6) (S+L), BDS B1 (I+Q), BDS B2 (I+Q), BDS
+         * B3 (I+Q), IRNSS L5 (B+C).
+         */
+        X = 10,
+
+        /** GPS L1Y, GPS L2Y. */
+        Y = 11,
+
+        /** GALILEO E1 (A+B+C), GALILEO E6 (A+B+C), QZSS L1-SAIF. */
+        Z = 12,
+
+        /** GPS L1 codeless, GPS L2 codeless. */
+        N = 13,
+
+        /**
+         * Other code type that does not belong to any of the above code types.
+         *
+         * This code type is used in the case that the above code types do not cover all the code
+         * types introduced in a new version of RINEX standard. When this code type is set, the
+         * field GnssMeasurement.otherCodeTypeName must specify the new code type.
+         */
+        OTHER = 255
+    };
+
+    /**
+     * Flags indicating the GNSS measurement state.
+     *
+     * <p>The expected behavior here is for GNSS HAL to set all the flags that apply. For example,
+     * if the state for a satellite is only C/A code locked and bit synchronized, and there is still
+     * millisecond ambiguity, the state must be set as:
+     *
+     * STATE_CODE_LOCK | STATE_BIT_SYNC |  STATE_MSEC_AMBIGUOUS
+     *
+     * <p>If GNSS is still searching for a satellite, the corresponding state must be set to
+     * STATE_UNKNOWN(0).
+     *
+     * <p>In @2.0::IGnssMeasurementCallback.GnssMeasurement, v1_1.v1_0.receivedSvTimeInNs, the
+     * received satellite time, is relative to the beginning of the system week for all
+     * constellations except for Glonass where it is relative to the beginning of the Glonass system
+     * day.
+     *
+     * <p>The table below indicates the valid range of the received GNSS satellite time.  These
+     * ranges depend on the constellation and code being tracked and the state of the tracking
+     * algorithms given by the getState method. If the state flag is set, then the valid measurement
+     * range is zero to the value in the table. The state flag with the widest range indicates the
+     * range of the received GNSS satellite time value.
+     *
+     * <table>
+     *   <thead>
+     *     <tr>
+     *       <td />
+     *       <td colspan="3"><strong>GPS/QZSS</strong></td>
+     *       <td><strong>GLNS</strong></td>
+     *       <td colspan="2"><strong>BDS</strong></td>
+     *       <td colspan="3"><strong>GAL</strong></td>
+     *       <td><strong>SBAS</strong></td>
+     *     </tr>
+     *     <tr>
+     *       <td><strong>State Flag</strong></td>
+     *       <td><strong>L1 C/A</strong></td>
+     *       <td><strong>L5I</strong></td>
+     *       <td><strong>L5Q</strong></td>
+     *       <td><strong>L1OF</strong></td>
+     *       <td><strong>B1I (D1)</strong></td>
+     *       <td><strong>B1I &nbsp;(D2)</strong></td>
+     *       <td><strong>E1B</strong></td>
+     *       <td><strong>E1C</strong></td>
+     *       <td><strong>E5AQ</strong></td>
+     *       <td><strong>L1 C/A</strong></td>
+     *     </tr>
+     *   </thead>
+     *   <tbody>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_UNKNOWN</strong>
+     *       </td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *       <td>0</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_CODE_LOCK</strong>
+     *       </td>
+     *       <td>1 ms</td>
+     *       <td>1 ms</td>
+     *       <td>1 ms</td>
+     *       <td>1 ms</td>
+     *       <td>1 ms</td>
+     *       <td>1 ms</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>1 ms</td>
+     *       <td>1 ms</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_SYMBOL_SYNC</strong>
+     *       </td>
+     *       <td>20 ms (optional)</td>
+     *       <td>10 ms</td>
+     *       <td>1 ms (optional)</td>
+     *       <td>10 ms</td>
+     *       <td>20 ms (optional)</td>
+     *       <td>2 ms</td>
+     *       <td>4 ms (optional)</td>
+     *       <td>4 ms (optional)</td>
+     *       <td>1 ms (optional)</td>
+     *       <td>2 ms</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_BIT_SYNC</strong>
+     *       </td>
+     *       <td>20 ms</td>
+     *       <td>20 ms</td>
+     *       <td>1 ms (optional)</td>
+     *       <td>20 ms</td>
+     *       <td>20 ms</td>
+     *       <td>-</td>
+     *       <td>8 ms</td>
+     *       <td>-</td>
+     *       <td>1 ms (optional)</td>
+     *       <td>4 ms</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_SUBFRAME_SYNC</strong>
+     *       </td>
+     *       <td>6s</td>
+     *       <td>6s</td>
+     *       <td>-</td>
+     *       <td>2 s</td>
+     *       <td>6 s</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>100 ms</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_TOW_DECODED</strong>
+     *       </td>
+     *       <td colspan="2">1 week</td>
+     *       <td>-</td>
+     *       <td>1 day</td>
+     *       <td colspan="2">1 week</td>
+     *       <td colspan="2">1 week</td>
+     *       <td>-</td>
+     *       <td>1 week</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_TOW_KNOWN</strong>
+     *       </td>
+     *       <td colspan="3">1 week</td>
+     *       <td>1 day</td>
+     *       <td colspan="2">1 week</td>
+     *       <td colspan="3">1 week</td>
+     *       <td>1 week</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_GLO_STRING_SYNC</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>2 s</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_GLO_TOD_DECODED</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>1 day</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_GLO_TOD_KNOWN</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>1 day</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_BDS_D2_BIT_SYNC</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>2 ms</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_BDS_D2_SUBFRAME_SYNC</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>600 ms</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_GAL_E1BC_CODE_LOCK</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>4 ms</td>
+     *       <td>4 ms</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_GAL_E1C_2ND_CODE_LOCK</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>100 ms</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_2ND_CODE_LOCK</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>10 ms (optional)</td>
+     *       <td>20 ms</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>100 ms (optional)</td>
+     *       <td>100 ms</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_GAL_E1B_PAGE_SYNC</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>2 s</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *     </tr>
+     *     <tr>
+     *       <td>
+     *         <strong>STATE_SBAS_SYNC</strong>
+     *       </td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>-</td>
+     *       <td>1 s</td>
+     *     </tr>
+     *   </tbody>
+     * </table>
+     *
+     * <p>Note: TOW Known refers to the case where TOW is possibly not decoded over the air but has
+     * been determined from other sources. If TOW decoded is set then TOW Known must also be set.
+     *
+     * <p>Note well: if there is any ambiguity in integer millisecond, STATE_MSEC_AMBIGUOUS must be
+     * set accordingly, in the 'state' field.  This value must be populated if 'state' !=
+     * STATE_UNKNOWN.
+     *
+     * <p>Note on optional flags:
+     * <ul>
+     *     <li> For L1 C/A and B1I, STATE_SYMBOL_SYNC is optional since the symbol length is the
+     *     same as the bit length.
+     *     <li> For L5Q and E5aQ, STATE_BIT_SYNC and STATE_SYMBOL_SYNC are optional since they are
+     *     implied by STATE_CODE_LOCK.
+     *     <li> STATE_2ND_CODE_LOCK for L5I is optional since it is implied by STATE_SYMBOL_SYNC.
+     *     <li> STATE_2ND_CODE_LOCK for E1C is optional since it is implied by
+     *     STATE_GAL_E1C_2ND_CODE_LOCK.
+     *     <li> For E1B and E1C, STATE_SYMBOL_SYNC is optional, because it is implied by
+     *     STATE_GAL_E1BC_CODE_LOCK.
+     * </ul>
+     *
+     */
+    @export(name="", value_prefix="GNSS_MEASUREMENT_")
+    enum GnssMeasurementState : uint32_t {
+        STATE_UNKNOWN                = 0,
+        STATE_CODE_LOCK              = 1 << 0,
+        STATE_BIT_SYNC               = 1 << 1,
+        STATE_SUBFRAME_SYNC          = 1 << 2,
+        STATE_TOW_DECODED            = 1 << 3,
+        STATE_MSEC_AMBIGUOUS         = 1 << 4,
+        STATE_SYMBOL_SYNC            = 1 << 5,
+        STATE_GLO_STRING_SYNC        = 1 << 6,
+        STATE_GLO_TOD_DECODED        = 1 << 7,
+        STATE_BDS_D2_BIT_SYNC        = 1 << 8,
+        STATE_BDS_D2_SUBFRAME_SYNC   = 1 << 9,
+        STATE_GAL_E1BC_CODE_LOCK     = 1 << 10,
+        STATE_GAL_E1C_2ND_CODE_LOCK  = 1 << 11,
+        STATE_GAL_E1B_PAGE_SYNC      = 1 << 12,
+        STATE_SBAS_SYNC              = 1 << 13,
+        STATE_TOW_KNOWN              = 1 << 14,
+        STATE_GLO_TOD_KNOWN          = 1 << 15,
+        STATE_2ND_CODE_LOCK          = 1 << 16,
+    };
+
+    /**
+     * Extends a GNSS Measurement, adding a GnssMeasurementCodeType.
+     */
+    struct GnssMeasurement {
+        /**
+         * GNSS measurement information for a single satellite and frequency, as in the 1.1
+         * version of the HAL with further clarification of the value reported in the
+         * accumulatedDeltaRangeM field, i.e., the alignment of the phase measurement will not be
+         * adjusted by the receiver so the in-phase and quadrature phase components will have a
+         * quarter cycle offset as they do when transmitted from the satellites. If the measurement
+         * is from a combination of the in-phase and quadrature phase components, then the alignment
+         * of the phase measurement will be aligned to the in-phase component.
+         *
+         * In this version of the HAL, the field 'state' in the v1_1.v1_0 struct is deprecated, and
+         * is no longer used by the framework. The satellite sync state is instead reported in
+         * @2.0::IGnssMeasurementCallback.GnssMeasurement.state.
+         */
+        @1.1::IGnssMeasurementCallback.GnssMeasurement v1_1;
+
+        /**
+         * The type of code that is currently being tracked in the GNSS measurement.
+         *
+         * For high precision applications the type of code being tracked needs to be considered
+         * in-order to properly apply code specific corrections to the psuedorange measurements.
+         */
+        GnssMeasurementCodeType codeType;
+
+        /**
+         * The name of the code type when codeType is OTHER.
+         *
+         * This is used to specify the observation descriptor defined in GNSS Observation Data File
+         * Header Section Description in the RINEX standard (Version 3.XX). In RINEX Version 3.03,
+         * in Appendix Table A2 Attributes are listed as uppercase letters (for instance, "A" for
+         * "A channel"). In the future, if for instance a code "G" was added in the official RINEX
+         * standard, "G" could be specified here.
+         */
+        string otherCodeTypeName;
+
+        /**
+         * Per satellite sync state. It represents the current sync state for the associated
+         * satellite.
+         *
+         * Based on the sync state, the receivedSvTimeInNs field must be interpreted accordingly.
+         *
+         * This value is mandatory.
+         */
+        bitfield<GnssMeasurementState> state;
+    };
+
+    /**
+     * Complete set of GNSS Measurement data, same as 1.1 with additional enum in measurements.
+     */
+    struct GnssData {
+        /** The full set of satellite measurement observations. */
+        vec<GnssMeasurement> measurements;
+
+        /** The GNSS clock time reading. */
+        GnssClock clock;
+
+        /**
+         * Timing information of the GNSS data synchronized with SystemClock.elapsedRealtimeNanos()
+         * clock.
+         */
+        ElapsedRealtime elapsedRealtime;
+    };
+
+    /**
+     * Callback for the hal to pass a GnssData structure back to the client.
+     *
+     * @param data Contains a reading of GNSS measurements.
+     */
+    gnssMeasurementCb_2_0(GnssData data);
+};
diff --git a/gnss/2.0/default/AGnss.cpp b/gnss/2.0/default/AGnss.cpp
new file mode 100644
index 0000000..c8e8bf1
--- /dev/null
+++ b/gnss/2.0/default/AGnss.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AGnss"
+
+#include "AGnss.h"
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::gnss::V2_0::IAGnss follow.
+Return<void> AGnss::setCallback(const sp<V2_0::IAGnssCallback>&) {
+    // TODO implement
+    return Void();
+}
+
+Return<bool> AGnss::dataConnClosed() {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> AGnss::dataConnFailed() {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> AGnss::setServer(V2_0::IAGnssCallback::AGnssType type, const hidl_string& hostname,
+                              int32_t port) {
+    ALOGD("setServer: type: %s, hostname: %s, port: %d", toString(type).c_str(), hostname.c_str(),
+          port);
+    return true;
+}
+
+Return<bool> AGnss::dataConnOpen(uint64_t, const hidl_string&, V2_0::IAGnss::ApnIpType) {
+    // TODO implement
+    return bool{};
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/2.0/default/AGnss.h b/gnss/2.0/default/AGnss.h
new file mode 100644
index 0000000..244a2c6
--- /dev/null
+++ b/gnss/2.0/default/AGnss.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GNSS_V2_0_AGNSS_H
+#define ANDROID_HARDWARE_GNSS_V2_0_AGNSS_H
+
+#include <android/hardware/gnss/2.0/IAGnss.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+struct AGnss : public IAGnss {
+    // Methods from ::android::hardware::gnss::V2_0::IAGnss follow.
+    Return<void> setCallback(const sp<V2_0::IAGnssCallback>& callback) override;
+    Return<bool> dataConnClosed() override;
+    Return<bool> dataConnFailed() override;
+    Return<bool> setServer(V2_0::IAGnssCallback::AGnssType type, const hidl_string& hostname,
+                           int32_t port) override;
+    Return<bool> dataConnOpen(uint64_t networkHandle, const hidl_string& apn,
+                              V2_0::IAGnss::ApnIpType apnIpType) override;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V2_0_AGNSS_H
\ No newline at end of file
diff --git a/gnss/2.0/default/AGnssRil.cpp b/gnss/2.0/default/AGnssRil.cpp
new file mode 100644
index 0000000..eae2169
--- /dev/null
+++ b/gnss/2.0/default/AGnssRil.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AGnssRil"
+
+#include "AGnssRil.h"
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+// Methods from V1_0::IAGnssRil follow.
+Return<void> AGnssRil::setCallback(const sp<V1_0::IAGnssRilCallback>&) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> AGnssRil::setRefLocation(const V1_0::IAGnssRil::AGnssRefLocation&) {
+    // TODO implement
+    return Void();
+}
+
+Return<bool> AGnssRil::setSetId(V1_0::IAGnssRil::SetIDType, const hidl_string&) {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> AGnssRil::updateNetworkState(bool, V1_0::IAGnssRil::NetworkType, bool) {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> AGnssRil::updateNetworkAvailability(bool, const hidl_string&) {
+    // TODO implement
+    return bool{};
+}
+
+// Methods from ::android::hardware::gnss::V2_0::IAGnssRil follow.
+Return<bool> AGnssRil::updateNetworkState_2_0(
+    const V2_0::IAGnssRil::NetworkAttributes& attributes) {
+    ALOGD("updateNetworkState_2_0 networkAttributes: %s", toString(attributes).c_str());
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/2.0/default/AGnssRil.h b/gnss/2.0/default/AGnssRil.h
new file mode 100644
index 0000000..0f822f8
--- /dev/null
+++ b/gnss/2.0/default/AGnssRil.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GNSS_V2_0_AGNSSRIL_H
+#define ANDROID_HARDWARE_GNSS_V2_0_AGNSSRIL_H
+
+#include <android/hardware/gnss/2.0/IAGnssRil.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+struct AGnssRil : public IAGnssRil {
+    // Methods from ::android::hardware::gnss::V1_0::IAGnssRil follow.
+    Return<void> setCallback(const sp<V1_0::IAGnssRilCallback>& callback) override;
+    Return<void> setRefLocation(const V1_0::IAGnssRil::AGnssRefLocation& agnssReflocation) override;
+    Return<bool> setSetId(V1_0::IAGnssRil::SetIDType type, const hidl_string& setid) override;
+    Return<bool> updateNetworkState(bool connected, V1_0::IAGnssRil::NetworkType type,
+                                    bool roaming) override;
+    Return<bool> updateNetworkAvailability(bool available, const hidl_string& apn) override;
+
+    // Methods from ::android::hardware::gnss::V2_0::IAGnssRil follow.
+    Return<bool> updateNetworkState_2_0(
+        const V2_0::IAGnssRil::NetworkAttributes& attributes) override;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V2_0_AGNSSRIL_H
\ No newline at end of file
diff --git a/gnss/2.0/default/Android.bp b/gnss/2.0/default/Android.bp
new file mode 100644
index 0000000..f327197
--- /dev/null
+++ b/gnss/2.0/default/Android.bp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+cc_binary {
+    name: "android.hardware.gnss@2.0-service",
+    init_rc: ["android.hardware.gnss@2.0-service.rc"],
+    relative_install_path: "hw",
+    vendor: true,
+    vintf_fragments: ["android.hardware.gnss@2.0-service.xml"],
+    srcs: [
+        "GnssConfiguration.cpp",
+        "AGnss.cpp",
+        "AGnssRil.cpp",
+        "Gnss.cpp",
+        "GnssMeasurement.cpp",
+        "GnssVisibilityControl.cpp",
+        "service.cpp"
+    ],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "liblog",
+        "android.hardware.gnss@2.0",
+        "android.hardware.gnss.measurement_corrections@1.0",
+        "android.hardware.gnss.visibility_control@1.0",
+        "android.hardware.gnss@1.0",
+        "android.hardware.gnss@1.1",
+    ],
+    static_libs: [
+        "android.hardware.gnss@common-default-lib",
+    ],
+}
diff --git a/gnss/2.0/default/Gnss.cpp b/gnss/2.0/default/Gnss.cpp
new file mode 100644
index 0000000..599681b
--- /dev/null
+++ b/gnss/2.0/default/Gnss.cpp
@@ -0,0 +1,311 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Gnss"
+
+#include "Gnss.h"
+
+#include <log/log.h>
+#include <utils/SystemClock.h>
+
+#include "AGnss.h"
+#include "AGnssRil.h"
+#include "GnssConfiguration.h"
+#include "GnssMeasurement.h"
+#include "GnssVisibilityControl.h"
+#include "Utils.h"
+
+using ::android::hardware::Status;
+using ::android::hardware::gnss::common::Utils;
+using ::android::hardware::gnss::visibility_control::V1_0::implementation::GnssVisibilityControl;
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using GnssSvFlags = IGnssCallback::GnssSvFlags;
+
+sp<V2_0::IGnssCallback> Gnss::sGnssCallback_2_0 = nullptr;
+sp<V1_1::IGnssCallback> Gnss::sGnssCallback_1_1 = nullptr;
+
+namespace {
+
+V2_0::GnssLocation getMockLocationV2_0() {
+    const ElapsedRealtime timestamp = {
+            .flags = ElapsedRealtimeFlags::HAS_TIMESTAMP_NS |
+                     ElapsedRealtimeFlags::HAS_TIME_UNCERTAINTY_NS,
+            .timestampNs = static_cast<uint64_t>(::android::elapsedRealtimeNano()),
+            // This is an hardcoded value indicating a 1ms of uncertainty between the two clocks.
+            // In an actual implementation provide an estimate of the synchronization uncertainty
+            // or don't set the field.
+            .timeUncertaintyNs = 1000000};
+
+    V2_0::GnssLocation location = {.v1_0 = Utils::getMockLocation(), .elapsedRealtime = timestamp};
+    return location;
+}
+
+}  // namespace
+
+Gnss::Gnss() : mMinIntervalMs(1000) {}
+
+Gnss::~Gnss() {
+    stop();
+}
+
+// Methods from V1_0::IGnss follow.
+Return<bool> Gnss::setCallback(const sp<V1_0::IGnssCallback>&) {
+    // TODO(b/124012850): Implement function.
+    return bool{};
+}
+
+Return<bool> Gnss::start() {
+    if (mIsActive) {
+        ALOGW("Gnss has started. Restarting...");
+        stop();
+    }
+
+    mIsActive = true;
+    mThread = std::thread([this]() {
+        while (mIsActive == true) {
+            const auto location = getMockLocationV2_0();
+            this->reportLocation(location);
+
+            std::this_thread::sleep_for(std::chrono::milliseconds(mMinIntervalMs));
+        }
+    });
+    return true;
+}
+
+Return<bool> Gnss::stop() {
+    mIsActive = false;
+    if (mThread.joinable()) {
+        mThread.join();
+    }
+    return true;
+}
+
+Return<void> Gnss::cleanup() {
+    // TODO(b/124012850): Implement function.
+    return Void();
+}
+
+Return<bool> Gnss::injectTime(int64_t, int64_t, int32_t) {
+    // TODO(b/124012850): Implement function.
+    return bool{};
+}
+
+Return<bool> Gnss::injectLocation(double, double, float) {
+    // TODO(b/124012850): Implement function.
+    return bool{};
+}
+
+Return<void> Gnss::deleteAidingData(V1_0::IGnss::GnssAidingData) {
+    // TODO(b/124012850): Implement function.
+    return Void();
+}
+
+Return<bool> Gnss::setPositionMode(V1_0::IGnss::GnssPositionMode,
+                                   V1_0::IGnss::GnssPositionRecurrence, uint32_t, uint32_t,
+                                   uint32_t) {
+    // TODO(b/124012850): Implement function.
+    return bool{};
+}
+
+Return<sp<V1_0::IAGnssRil>> Gnss::getExtensionAGnssRil() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IAGnssRil>{};
+}
+
+Return<sp<V1_0::IGnssGeofencing>> Gnss::getExtensionGnssGeofencing() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IGnssGeofencing>{};
+}
+
+Return<sp<V1_0::IAGnss>> Gnss::getExtensionAGnss() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IAGnss>{};
+}
+
+Return<sp<V1_0::IGnssNi>> Gnss::getExtensionGnssNi() {
+    // The IGnssNi.hal interface is deprecated in 2.0.
+    return nullptr;
+}
+
+Return<sp<V1_0::IGnssMeasurement>> Gnss::getExtensionGnssMeasurement() {
+    // Not supported
+    return nullptr;
+}
+
+Return<sp<V1_0::IGnssNavigationMessage>> Gnss::getExtensionGnssNavigationMessage() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IGnssNavigationMessage>{};
+}
+
+Return<sp<V1_0::IGnssXtra>> Gnss::getExtensionXtra() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IGnssXtra>{};
+}
+
+Return<sp<V1_0::IGnssConfiguration>> Gnss::getExtensionGnssConfiguration() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IGnssConfiguration>{};
+}
+
+Return<sp<V1_0::IGnssDebug>> Gnss::getExtensionGnssDebug() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IGnssDebug>{};
+}
+
+Return<sp<V1_0::IGnssBatching>> Gnss::getExtensionGnssBatching() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_0::IGnssBatching>{};
+}
+
+// Methods from V1_1::IGnss follow.
+Return<bool> Gnss::setCallback_1_1(const sp<V1_1::IGnssCallback>& callback) {
+    ALOGD("Gnss::setCallback_1_1");
+    if (callback == nullptr) {
+        ALOGE("%s: Null callback ignored", __func__);
+        return false;
+    }
+
+    sGnssCallback_1_1 = callback;
+
+    uint32_t capabilities = (uint32_t)V1_0::IGnssCallback::Capabilities::MEASUREMENTS;
+    auto ret = sGnssCallback_1_1->gnssSetCapabilitesCb(capabilities);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    V1_1::IGnssCallback::GnssSystemInfo gnssInfo = {.yearOfHw = 2019};
+
+    ret = sGnssCallback_1_1->gnssSetSystemInfoCb(gnssInfo);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    auto gnssName = "Google Mock GNSS Implementation v2.0";
+    ret = sGnssCallback_1_1->gnssNameCb(gnssName);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    return true;
+}
+
+Return<bool> Gnss::setPositionMode_1_1(V1_0::IGnss::GnssPositionMode,
+                                       V1_0::IGnss::GnssPositionRecurrence, uint32_t, uint32_t,
+                                       uint32_t, bool) {
+    return true;
+}
+
+Return<sp<V1_1::IGnssConfiguration>> Gnss::getExtensionGnssConfiguration_1_1() {
+    // TODO(b/124012850): Implement function.
+    return sp<V1_1::IGnssConfiguration>{};
+}
+
+Return<sp<V1_1::IGnssMeasurement>> Gnss::getExtensionGnssMeasurement_1_1() {
+    ALOGD("Gnss::getExtensionGnssMeasurement_1_1");
+    return new GnssMeasurement();
+}
+
+Return<bool> Gnss::injectBestLocation(const V1_0::GnssLocation&) {
+    // TODO(b/124012850): Implement function.
+    return bool{};
+}
+
+// Methods from V2_0::IGnss follow.
+Return<sp<V2_0::IGnssConfiguration>> Gnss::getExtensionGnssConfiguration_2_0() {
+    return new GnssConfiguration{};
+}
+
+Return<sp<V2_0::IAGnss>> Gnss::getExtensionAGnss_2_0() {
+    return new AGnss{};
+}
+
+Return<sp<V2_0::IAGnssRil>> Gnss::getExtensionAGnssRil_2_0() {
+    return new AGnssRil{};
+}
+
+Return<sp<V2_0::IGnssMeasurement>> Gnss::getExtensionGnssMeasurement_2_0() {
+    ALOGD("Gnss::getExtensionGnssMeasurement_2_0");
+    return new GnssMeasurement();
+}
+
+Return<sp<measurement_corrections::V1_0::IMeasurementCorrections>>
+Gnss::getExtensionMeasurementCorrections() {
+    // TODO(b/124012850): Implement function.
+    return sp<measurement_corrections::V1_0::IMeasurementCorrections>{};
+}
+
+Return<sp<visibility_control::V1_0::IGnssVisibilityControl>> Gnss::getExtensionVisibilityControl() {
+    ALOGD("Gnss::getExtensionVisibilityControl");
+    return new GnssVisibilityControl();
+}
+
+Return<bool> Gnss::setCallback_2_0(const sp<V2_0::IGnssCallback>& callback) {
+    ALOGD("Gnss::setCallback_2_0");
+    if (callback == nullptr) {
+        ALOGE("%s: Null callback ignored", __func__);
+        return false;
+    }
+
+    sGnssCallback_2_0 = callback;
+
+    uint32_t capabilities = 0x0;
+    auto ret = sGnssCallback_2_0->gnssSetCapabilitesCb(capabilities);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    V1_1::IGnssCallback::GnssSystemInfo gnssInfo = {.yearOfHw = 2019};
+
+    ret = sGnssCallback_2_0->gnssSetSystemInfoCb(gnssInfo);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    auto gnssName = "Google Mock GNSS Implementation v2.0";
+    ret = sGnssCallback_2_0->gnssNameCb(gnssName);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    return true;
+}
+
+Return<void> Gnss::reportLocation(const V2_0::GnssLocation& location) const {
+    std::unique_lock<std::mutex> lock(mMutex);
+    if (sGnssCallback_2_0 == nullptr) {
+        ALOGE("%s: sGnssCallback 2.0 is null.", __func__);
+        return Void();
+    }
+    sGnssCallback_2_0->gnssLocationCb_2_0(location);
+    return Void();
+}
+
+Return<bool> Gnss::injectBestLocation_2_0(const V2_0::GnssLocation&) {
+    // TODO(b/124012850): Implement function.
+    return bool{};
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/2.0/default/Gnss.h b/gnss/2.0/default/Gnss.h
new file mode 100644
index 0000000..f02ab0a
--- /dev/null
+++ b/gnss/2.0/default/Gnss.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GNSS_V2_0_GNSS_H
+#define ANDROID_HARDWARE_GNSS_V2_0_GNSS_H
+
+#include <android/hardware/gnss/2.0/IGnss.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <atomic>
+#include <mutex>
+#include <thread>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+using GnssConstellationType = V1_0::GnssConstellationType;
+using GnssLocation = V1_0::GnssLocation;
+using GnssSvInfo = V1_0::IGnssCallback::GnssSvInfo;
+using GnssSvStatus = V1_0::IGnssCallback::GnssSvStatus;
+
+struct Gnss : public IGnss {
+    Gnss();
+    ~Gnss();
+    // Methods from V1_0::IGnss follow.
+    Return<bool> setCallback(const sp<V1_0::IGnssCallback>& callback) override;
+    Return<bool> start() override;
+    Return<bool> stop() override;
+    Return<void> cleanup() override;
+    Return<bool> injectTime(int64_t timeMs, int64_t timeReferenceMs,
+                            int32_t uncertaintyMs) override;
+    Return<bool> injectLocation(double latitudeDegrees, double longitudeDegrees,
+                                float accuracyMeters) override;
+    Return<void> deleteAidingData(V1_0::IGnss::GnssAidingData aidingDataFlags) override;
+    Return<bool> setPositionMode(V1_0::IGnss::GnssPositionMode mode,
+                                 V1_0::IGnss::GnssPositionRecurrence recurrence,
+                                 uint32_t minIntervalMs, uint32_t preferredAccuracyMeters,
+                                 uint32_t preferredTimeMs) override;
+    Return<sp<V1_0::IAGnssRil>> getExtensionAGnssRil() override;
+    Return<sp<V1_0::IGnssGeofencing>> getExtensionGnssGeofencing() override;
+    Return<sp<V1_0::IAGnss>> getExtensionAGnss() override;
+    Return<sp<V1_0::IGnssNi>> getExtensionGnssNi() override;
+    Return<sp<V1_0::IGnssMeasurement>> getExtensionGnssMeasurement() override;
+    Return<sp<V1_0::IGnssNavigationMessage>> getExtensionGnssNavigationMessage() override;
+    Return<sp<V1_0::IGnssXtra>> getExtensionXtra() override;
+    Return<sp<V1_0::IGnssConfiguration>> getExtensionGnssConfiguration() override;
+    Return<sp<V1_0::IGnssDebug>> getExtensionGnssDebug() override;
+    Return<sp<V1_0::IGnssBatching>> getExtensionGnssBatching() override;
+
+    // Methods from V1_1::IGnss follow.
+    Return<bool> setCallback_1_1(const sp<V1_1::IGnssCallback>& callback) override;
+    Return<bool> setPositionMode_1_1(V1_0::IGnss::GnssPositionMode mode,
+                                     V1_0::IGnss::GnssPositionRecurrence recurrence,
+                                     uint32_t minIntervalMs, uint32_t preferredAccuracyMeters,
+                                     uint32_t preferredTimeMs, bool lowPowerMode) override;
+    Return<sp<V1_1::IGnssConfiguration>> getExtensionGnssConfiguration_1_1() override;
+    Return<sp<V1_1::IGnssMeasurement>> getExtensionGnssMeasurement_1_1() override;
+    Return<bool> injectBestLocation(const GnssLocation& location) override;
+
+    // Methods from V2_0::IGnss follow.
+    Return<sp<V2_0::IGnssConfiguration>> getExtensionGnssConfiguration_2_0() override;
+    Return<sp<V2_0::IAGnss>> getExtensionAGnss_2_0() override;
+    Return<sp<V2_0::IAGnssRil>> getExtensionAGnssRil_2_0() override;
+    Return<sp<V2_0::IGnssMeasurement>> getExtensionGnssMeasurement_2_0() override;
+    Return<bool> setCallback_2_0(const sp<V2_0::IGnssCallback>& callback) override;
+    Return<sp<measurement_corrections::V1_0::IMeasurementCorrections>>
+    getExtensionMeasurementCorrections() override;
+    Return<sp<visibility_control::V1_0::IGnssVisibilityControl>> getExtensionVisibilityControl()
+            override;
+    Return<bool> injectBestLocation_2_0(const V2_0::GnssLocation& location) override;
+
+  private:
+    Return<void> reportLocation(const V2_0::GnssLocation&) const;
+    static sp<V2_0::IGnssCallback> sGnssCallback_2_0;
+    static sp<V1_1::IGnssCallback> sGnssCallback_1_1;
+    std::atomic<long> mMinIntervalMs;
+    std::atomic<bool> mIsActive;
+    std::thread mThread;
+    mutable std::mutex mMutex;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V2_0_GNSS_H
diff --git a/gnss/2.0/default/GnssConfiguration.cpp b/gnss/2.0/default/GnssConfiguration.cpp
new file mode 100644
index 0000000..4389dd2
--- /dev/null
+++ b/gnss/2.0/default/GnssConfiguration.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GnssConfiguration"
+
+#include "GnssConfiguration.h"
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::gnss::V1_0::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setSuplEs(bool enable) {
+    ALOGD("setSuplEs enable: %d", enable);
+    // Method deprecated in 2.0 and not expected to be called by the framework.
+    return false;
+}
+
+Return<bool> GnssConfiguration::setSuplVersion(uint32_t) {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> GnssConfiguration::setSuplMode(hidl_bitfield<SuplMode>) {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> GnssConfiguration::setGpsLock(hidl_bitfield<GpsLock> gpsLock) {
+    ALOGD("setGpsLock gpsLock: %hhu", static_cast<GpsLock>(gpsLock));
+    // Method deprecated in 2.0 and not expected to be called by the framework.
+    return false;
+}
+
+Return<bool> GnssConfiguration::setLppProfile(hidl_bitfield<LppProfile>) {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> GnssConfiguration::setGlonassPositioningProtocol(hidl_bitfield<GlonassPosProtocol>) {
+    // TODO implement
+    return bool{};
+}
+
+Return<bool> GnssConfiguration::setEmergencySuplPdn(bool) {
+    // TODO implement
+    return bool{};
+}
+
+// Methods from ::android::hardware::gnss::V1_1::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setBlacklist(
+    const hidl_vec<V1_1::IGnssConfiguration::BlacklistedSource>&) {
+    // TODO (b/122463906): Reuse 1.1 implementation.
+    return bool{};
+}
+
+// Methods from ::android::hardware::gnss::V2_0::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setEsExtensionSec(uint32_t emergencyExtensionSeconds) {
+    ALOGD("setEsExtensionSec emergencyExtensionSeconds: %d", emergencyExtensionSeconds);
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
\ No newline at end of file
diff --git a/gnss/2.0/default/GnssConfiguration.h b/gnss/2.0/default/GnssConfiguration.h
new file mode 100644
index 0000000..0c02ccd
--- /dev/null
+++ b/gnss/2.0/default/GnssConfiguration.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GNSS_V2_0_GNSSCONFIGURATION_H
+#define ANDROID_HARDWARE_GNSS_V2_0_GNSSCONFIGURATION_H
+
+#include <android/hardware/gnss/2.0/IGnssConfiguration.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+struct GnssConfiguration : public IGnssConfiguration {
+    // Methods from ::android::hardware::gnss::V1_0::IGnssConfiguration follow.
+    Return<bool> setSuplEs(bool enabled) override;
+    Return<bool> setSuplVersion(uint32_t version) override;
+    Return<bool> setSuplMode(hidl_bitfield<SuplMode> mode) override;
+    Return<bool> setGpsLock(hidl_bitfield<GpsLock> lock) override;
+    Return<bool> setLppProfile(hidl_bitfield<LppProfile> lppProfile) override;
+    Return<bool> setGlonassPositioningProtocol(hidl_bitfield<GlonassPosProtocol> protocol) override;
+    Return<bool> setEmergencySuplPdn(bool enable) override;
+
+    // Methods from ::android::hardware::gnss::V1_1::IGnssConfiguration follow.
+    Return<bool> setBlacklist(
+        const hidl_vec<V1_1::IGnssConfiguration::BlacklistedSource>& blacklist) override;
+
+    // Methods from ::android::hardware::gnss::V2_0::IGnssConfiguration follow.
+    Return<bool> setEsExtensionSec(uint32_t emergencyExtensionSeconds) override;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V2_0_GNSSCONFIGURATION_H
\ No newline at end of file
diff --git a/gnss/2.0/default/GnssMeasurement.cpp b/gnss/2.0/default/GnssMeasurement.cpp
new file mode 100644
index 0000000..702c9e2
--- /dev/null
+++ b/gnss/2.0/default/GnssMeasurement.cpp
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "GnssMeasurement"
+
+#include "GnssMeasurement.h"
+
+#include <log/log.h>
+#include <utils/SystemClock.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using GnssConstellationType = V1_0::GnssConstellationType;
+using GnssMeasurementFlags = V1_0::IGnssMeasurementCallback::GnssMeasurementFlags;
+using GnssMeasurementState = V2_0::IGnssMeasurementCallback::GnssMeasurementState;
+
+sp<V2_0::IGnssMeasurementCallback> GnssMeasurement::sCallback = nullptr;
+
+GnssMeasurement::GnssMeasurement() : mMinIntervalMillis(1000) {}
+
+GnssMeasurement::~GnssMeasurement() {
+    stop();
+}
+
+// Methods from V1_0::IGnssMeasurement follow.
+Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> GnssMeasurement::setCallback(
+    const sp<V1_0::IGnssMeasurementCallback>&) {
+    // TODO implement
+    return V1_0::IGnssMeasurement::GnssMeasurementStatus{};
+}
+
+Return<void> GnssMeasurement::close() {
+    std::unique_lock<std::mutex> lock(mMutex);
+    stop();
+    sCallback = nullptr;
+    return Void();
+}
+
+// Methods from V1_1::IGnssMeasurement follow.
+Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> GnssMeasurement::setCallback_1_1(
+    const sp<V1_1::IGnssMeasurementCallback>&, bool) {
+    // TODO implement
+    return V1_0::IGnssMeasurement::GnssMeasurementStatus{};
+}
+
+// Methods from V2_0::IGnssMeasurement follow.
+Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> GnssMeasurement::setCallback_2_0(
+    const sp<V2_0::IGnssMeasurementCallback>& callback, bool) {
+    std::unique_lock<std::mutex> lock(mMutex);
+    sCallback = callback;
+
+    if (mIsActive) {
+        ALOGW("GnssMeasurement callback already set. Resetting the callback...");
+        stop();
+    }
+    start();
+
+    return V1_0::IGnssMeasurement::GnssMeasurementStatus::SUCCESS;
+}
+
+void GnssMeasurement::start() {
+    mIsActive = true;
+    mThread = std::thread([this]() {
+        while (mIsActive == true) {
+            auto measurement = this->getMockMeasurement();
+            this->reportMeasurement(measurement);
+
+            std::this_thread::sleep_for(std::chrono::milliseconds(mMinIntervalMillis));
+        }
+    });
+}
+
+void GnssMeasurement::stop() {
+    mIsActive = false;
+    if (mThread.joinable()) {
+        mThread.join();
+    }
+}
+
+GnssData GnssMeasurement::getMockMeasurement() {
+    V1_0::IGnssMeasurementCallback::GnssMeasurement measurement_1_0 = {
+        .flags = (uint32_t)GnssMeasurementFlags::HAS_CARRIER_FREQUENCY,
+        .svid = (int16_t)6,
+        .constellation = GnssConstellationType::GLONASS,
+        .timeOffsetNs = 0.0,
+        .receivedSvTimeInNs = 8195997131077,
+        .receivedSvTimeUncertaintyInNs = 15,
+        .cN0DbHz = 30.0,
+        .pseudorangeRateMps = -484.13739013671875,
+        .pseudorangeRateUncertaintyMps = 1.0379999876022339,
+        .accumulatedDeltaRangeState = (uint32_t)
+            V1_0::IGnssMeasurementCallback::GnssAccumulatedDeltaRangeState::ADR_STATE_UNKNOWN,
+        .accumulatedDeltaRangeM = 0.0,
+        .accumulatedDeltaRangeUncertaintyM = 0.0,
+        .carrierFrequencyHz = 1.59975e+09,
+        .multipathIndicator =
+            V1_0::IGnssMeasurementCallback::GnssMultipathIndicator::INDICATOR_UNKNOWN};
+    V1_1::IGnssMeasurementCallback::GnssMeasurement measurement_1_1 = {.v1_0 = measurement_1_0};
+    V2_0::IGnssMeasurementCallback::GnssMeasurement measurement_2_0 = {
+            .v1_1 = measurement_1_1,
+            .codeType = IGnssMeasurementCallback::GnssMeasurementCodeType::C,
+            .otherCodeTypeName = "",
+            .state = GnssMeasurementState::STATE_CODE_LOCK | GnssMeasurementState::STATE_BIT_SYNC |
+                     GnssMeasurementState::STATE_SUBFRAME_SYNC |
+                     GnssMeasurementState::STATE_TOW_DECODED |
+                     GnssMeasurementState::STATE_GLO_STRING_SYNC |
+                     GnssMeasurementState::STATE_GLO_TOD_DECODED};
+
+    hidl_vec<IGnssMeasurementCallback::GnssMeasurement> measurements(1);
+    measurements[0] = measurement_2_0;
+    V1_0::IGnssMeasurementCallback::GnssClock clock = {.timeNs = 2713545000000,
+                                                       .fullBiasNs = -1226701900521857520,
+                                                       .biasNs = 0.59689998626708984,
+                                                       .biasUncertaintyNs = 47514.989972114563,
+                                                       .driftNsps = -51.757811607455452,
+                                                       .driftUncertaintyNsps = 310.64968328491528,
+                                                       .hwClockDiscontinuityCount = 1};
+
+    ElapsedRealtime timestamp = {
+            .flags = ElapsedRealtimeFlags::HAS_TIMESTAMP_NS |
+                     ElapsedRealtimeFlags::HAS_TIME_UNCERTAINTY_NS,
+            .timestampNs = static_cast<uint64_t>(::android::elapsedRealtimeNano()),
+            // This is an hardcoded value indicating a 1ms of uncertainty between the two clocks.
+            // In an actual implementation provide an estimate of the synchronization uncertainty
+            // or don't set the field.
+            .timeUncertaintyNs = 1000000};
+
+    GnssData gnssData = {
+            .measurements = measurements, .clock = clock, .elapsedRealtime = timestamp};
+    return gnssData;
+}
+
+void GnssMeasurement::reportMeasurement(const GnssData& data) {
+    ALOGD("reportMeasurement()");
+    std::unique_lock<std::mutex> lock(mMutex);
+    if (sCallback == nullptr) {
+        ALOGE("%s: GnssMeasurement::sCallback is null.", __func__);
+        return;
+    }
+    sCallback->gnssMeasurementCb_2_0(data);
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/2.0/default/GnssMeasurement.h b/gnss/2.0/default/GnssMeasurement.h
new file mode 100644
index 0000000..c24c00e
--- /dev/null
+++ b/gnss/2.0/default/GnssMeasurement.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GNSS_V2_0_GNSSMEASUREMENT_H
+#define ANDROID_HARDWARE_GNSS_V2_0_GNSSMEASUREMENT_H
+
+#include <android/hardware/gnss/2.0/IGnssMeasurement.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <atomic>
+#include <mutex>
+#include <thread>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+using GnssData = V2_0::IGnssMeasurementCallback::GnssData;
+
+struct GnssMeasurement : public IGnssMeasurement {
+    GnssMeasurement();
+    ~GnssMeasurement();
+    // Methods from V1_0::IGnssMeasurement follow.
+    Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> setCallback(
+        const sp<V1_0::IGnssMeasurementCallback>& callback) override;
+    Return<void> close() override;
+
+    // Methods from V1_1::IGnssMeasurement follow.
+    Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> setCallback_1_1(
+        const sp<V1_1::IGnssMeasurementCallback>& callback, bool enableFullTracking) override;
+
+    // Methods from V2_0::IGnssMeasurement follow.
+    Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> setCallback_2_0(
+        const sp<V2_0::IGnssMeasurementCallback>& callback, bool enableFullTracking) override;
+
+   private:
+    void start();
+    void stop();
+    GnssData getMockMeasurement();
+    void reportMeasurement(const GnssData&);
+
+    static sp<IGnssMeasurementCallback> sCallback;
+    std::atomic<long> mMinIntervalMillis;
+    std::atomic<bool> mIsActive;
+    std::thread mThread;
+    mutable std::mutex mMutex;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V2_0_GNSSMEASUREMENT_H
diff --git a/gnss/2.0/default/GnssVisibilityControl.cpp b/gnss/2.0/default/GnssVisibilityControl.cpp
new file mode 100644
index 0000000..99b8e34
--- /dev/null
+++ b/gnss/2.0/default/GnssVisibilityControl.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GnssVisibilityControl"
+
+#include "GnssVisibilityControl.h"
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace visibility_control {
+namespace V1_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::gnss::visibility_control::V1_0::IGnssVisibilityControl follow.
+Return<bool> GnssVisibilityControl::enableNfwLocationAccess(
+        const hidl_vec<hidl_string>& proxyApps) {
+    std::string os;
+    bool first = true;
+    for (const auto& proxyApp : proxyApps) {
+        if (first) {
+            first = false;
+        } else {
+            os += " ";
+        }
+
+        os += proxyApp;
+    }
+
+    ALOGD("enableNfwLocationAccess proxyApps: %s", os.c_str());
+    return true;
+}
+
+Return<bool> GnssVisibilityControl::setCallback(const sp<V1_0::IGnssVisibilityControlCallback>&) {
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace visibility_control
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/2.0/default/GnssVisibilityControl.h b/gnss/2.0/default/GnssVisibilityControl.h
new file mode 100644
index 0000000..45febff
--- /dev/null
+++ b/gnss/2.0/default/GnssVisibilityControl.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GNSS_VISIBILITY_CONTROL_V1_0_GNSSVISIBILITYCONTROL_H
+#define ANDROID_HARDWARE_GNSS_VISIBILITY_CONTROL_V1_0_GNSSVISIBILITYCONTROL_H
+
+#include <android/hardware/gnss/visibility_control/1.0/IGnssVisibilityControl.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace visibility_control {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+struct GnssVisibilityControl : public IGnssVisibilityControl {
+    // Methods from ::android::hardware::gnss::visibility_control::V1_0::IGnssVisibilityControl
+    // follow.
+    Return<bool> enableNfwLocationAccess(const hidl_vec<hidl_string>& proxyApps) override;
+    Return<bool> setCallback(const sp<V1_0::IGnssVisibilityControlCallback>& callback) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace visibility_control
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_VISIBILITY_CONTROL_V1_0_GNSSVISIBILITYCONTROL_H
\ No newline at end of file
diff --git a/gnss/2.0/default/OWNERS b/gnss/2.0/default/OWNERS
new file mode 100644
index 0000000..8da956c
--- /dev/null
+++ b/gnss/2.0/default/OWNERS
@@ -0,0 +1,5 @@
+wyattriley@google.com
+gomo@google.com
+smalkos@google.com
+yuhany@google.com
+aadmal@google.com
diff --git a/gnss/2.0/default/android.hardware.gnss@2.0-service.rc b/gnss/2.0/default/android.hardware.gnss@2.0-service.rc
new file mode 100644
index 0000000..a27240d
--- /dev/null
+++ b/gnss/2.0/default/android.hardware.gnss@2.0-service.rc
@@ -0,0 +1,4 @@
+service vendor.gnss-2-0 /vendor/bin/hw/android.hardware.gnss@2.0-service
+    class hal
+    user system
+    group system
diff --git a/gnss/2.0/default/android.hardware.gnss@2.0-service.xml b/gnss/2.0/default/android.hardware.gnss@2.0-service.xml
new file mode 100644
index 0000000..5b417f6
--- /dev/null
+++ b/gnss/2.0/default/android.hardware.gnss@2.0-service.xml
@@ -0,0 +1,12 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.gnss</name>
+        <transport>hwbinder</transport>
+        <version>2.0</version>
+        <version>1.1</version>
+        <interface>
+            <name>IGnss</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/gnss/2.0/default/service.cpp b/gnss/2.0/default/service.cpp
new file mode 100644
index 0000000..301d181
--- /dev/null
+++ b/gnss/2.0/default/service.cpp
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.gnss@2.0-service"
+
+#include <hidl/HidlSupport.h>
+#include <hidl/HidlTransportSupport.h>
+#include "Gnss.h"
+
+using ::android::OK;
+using ::android::sp;
+using ::android::hardware::configureRpcThreadpool;
+using ::android::hardware::joinRpcThreadpool;
+using ::android::hardware::gnss::V2_0::IGnss;
+using ::android::hardware::gnss::V2_0::implementation::Gnss;
+
+int main(int /* argc */, char* /* argv */ []) {
+    sp<IGnss> gnss = new Gnss();
+    configureRpcThreadpool(1, true /* will join */);
+    if (gnss->registerAsService() != OK) {
+        ALOGE("Could not register gnss 2.0 service.");
+        return 1;
+    }
+    joinRpcThreadpool();
+
+    ALOGE("Service exited!");
+    return 1;
+}
diff --git a/gnss/2.0/types.hal b/gnss/2.0/types.hal
new file mode 100644
index 0000000..4abb604
--- /dev/null
+++ b/gnss/2.0/types.hal
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@2.0;
+
+import @1.0::GnssLocation;
+
+/** Network handle type. */
+typedef uint64_t net_handle_t;
+
+/**
+ * Flags indicating the validity of the fields in ElapsedRealtime.
+ */
+@export(name="", value_prefix="ELAPSED_REALTIME_")
+enum ElapsedRealtimeFlags : uint16_t {
+    /** A valid timestampNs is stored in the data structure. */
+    HAS_TIMESTAMP_NS        = 1 << 0,
+    /** A valid timeUncertaintyNs is stored in the data structure. */
+    HAS_TIME_UNCERTAINTY_NS = 1 << 1,
+};
+
+/**
+ * Represents an estimate of elapsed time since boot of Android for a given event.
+ *
+ * This timestamp MUST represent the time the event happened and MUST be synchronized
+ * with the SystemClock.elapsedRealtimeNanos() clock.
+ */
+struct ElapsedRealtime {
+    /**
+     * A set of flags indicating the validity of each field in this data structure.
+     *
+     * Fields may have invalid information in them, if not marked as valid by the
+     * corresponding bit in flags.
+     */
+    bitfield<ElapsedRealtimeFlags> flags;
+
+    /**
+     * Estimate of the elapsed time since boot value for the corresponding event in nanoseconds.
+     */
+    uint64_t timestampNs;
+
+    /**
+     * Estimate of the relative precision of the alignment of this SystemClock
+     * timestamp, with the reported measurements in nanoseconds (68% confidence).
+     */
+    uint64_t timeUncertaintyNs;
+};
+
+/** Represents a location. */
+struct GnssLocation {
+    @1.0::GnssLocation v1_0;
+
+    /**
+     * Timing information of the GNSS location synchronized with SystemClock.elapsedRealtimeNanos()
+     * clock.
+     *
+     * This clock information can be obtained from SystemClock.elapsedRealtimeNanos(), when the GNSS
+     * is attached straight to the AP/SOC. When it is attached to a separate module the timestamp
+     * needs to be estimatedd by syncing the notion of time via PTP or some other mechanism. 
+     */
+    ElapsedRealtime elapsedRealtime;
+};
\ No newline at end of file
diff --git a/gnss/2.0/vts/OWNERS b/gnss/2.0/vts/OWNERS
new file mode 100644
index 0000000..0a7ce6c
--- /dev/null
+++ b/gnss/2.0/vts/OWNERS
@@ -0,0 +1,8 @@
+wyattriley@google.com
+gomo@google.com
+smalkos@google.com
+yuhany@google.com
+aadmal@google.com
+
+# VTS team
+yim@google.com
diff --git a/gnss/2.0/vts/functional/Android.bp b/gnss/2.0/vts/functional/Android.bp
new file mode 100644
index 0000000..278d87b
--- /dev/null
+++ b/gnss/2.0/vts/functional/Android.bp
@@ -0,0 +1,33 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalGnssV2_0TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "gnss_hal_test.cpp",
+        "gnss_hal_test_cases.cpp",
+        "VtsHalGnssV2_0TargetTest.cpp",
+    ],
+    static_libs: [
+        "android.hardware.gnss.measurement_corrections@1.0",
+        "android.hardware.gnss.visibility_control@1.0",
+        "android.hardware.gnss@1.0",
+        "android.hardware.gnss@1.1",
+        "android.hardware.gnss@2.0",
+        "android.hardware.gnss@common-vts-lib",
+    ],
+}
diff --git a/gnss/2.0/vts/functional/VtsHalGnssV2_0TargetTest.cpp b/gnss/2.0/vts/functional/VtsHalGnssV2_0TargetTest.cpp
new file mode 100644
index 0000000..a8e40ba
--- /dev/null
+++ b/gnss/2.0/vts/functional/VtsHalGnssV2_0TargetTest.cpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "VtsHalGnssV2_0TargetTest"
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include "gnss_hal_test.h"
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(GnssHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    GnssHidlEnvironment::Instance()->init(&argc, argv);
+    // TODO (b/122463165): Expand coverage to include 1.1 and 1.0 VTS tests.
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
diff --git a/gnss/2.0/vts/functional/gnss_hal_test.cpp b/gnss/2.0/vts/functional/gnss_hal_test.cpp
new file mode 100644
index 0000000..c564f41
--- /dev/null
+++ b/gnss/2.0/vts/functional/gnss_hal_test.cpp
@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GnssHalTest"
+
+#include <gnss_hal_test.h>
+#include <chrono>
+#include "Utils.h"
+
+using ::android::hardware::gnss::common::Utils;
+
+// Implementations for the main test class for GNSS HAL
+GnssHalTest::GnssHalTest()
+    : info_called_count_(0),
+      capabilities_called_count_(0),
+      location_called_count_(0),
+      name_called_count_(0),
+      notify_count_(0) {}
+
+void GnssHalTest::SetUp() {
+    gnss_hal_ = ::testing::VtsHalHidlTargetTestBase::getService<IGnss>(
+        GnssHidlEnvironment::Instance()->getServiceName<IGnss>());
+    list_gnss_sv_status_.clear();
+    ASSERT_NE(gnss_hal_, nullptr);
+
+    SetUpGnssCallback();
+}
+
+void GnssHalTest::TearDown() {
+    // Reset counters
+    info_called_count_ = 0;
+    capabilities_called_count_ = 0;
+    location_called_count_ = 0;
+    name_called_count_ = 0;
+    measurement_called_count_ = 0;
+
+    if (gnss_hal_ != nullptr) {
+        gnss_hal_->cleanup();
+    }
+    if (notify_count_ > 0) {
+        ALOGW("%d unprocessed callbacks discarded", notify_count_);
+    }
+}
+
+void GnssHalTest::SetUpGnssCallback() {
+    gnss_cb_ = new GnssCallback(*this);
+    ASSERT_NE(gnss_cb_, nullptr);
+
+    auto result = gnss_hal_->setCallback_1_1(gnss_cb_);
+    if (!result.isOk()) {
+        ALOGE("result of failed setCallback %s", result.description().c_str());
+    }
+
+    ASSERT_TRUE(result.isOk());
+    ASSERT_TRUE(result);
+
+    /*
+     * All capabilities, name and systemInfo callbacks should trigger
+     */
+    EXPECT_EQ(std::cv_status::no_timeout, wait(TIMEOUT_SEC));
+    EXPECT_EQ(std::cv_status::no_timeout, wait(TIMEOUT_SEC));
+    EXPECT_EQ(std::cv_status::no_timeout, wait(TIMEOUT_SEC));
+
+    EXPECT_EQ(capabilities_called_count_, 1);
+    EXPECT_EQ(info_called_count_, 1);
+    EXPECT_EQ(name_called_count_, 1);
+}
+
+void GnssHalTest::StopAndClearLocations() {
+    const auto result = gnss_hal_->stop();
+
+    EXPECT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    /*
+     * Clear notify/waiting counter, allowing up till the timeout after
+     * the last reply for final startup messages to arrive (esp. system
+     * info.)
+     */
+    while (wait(TIMEOUT_SEC) == std::cv_status::no_timeout) {
+    }
+    location_called_count_ = 0;
+}
+
+void GnssHalTest::SetPositionMode(const int min_interval_msec, const bool low_power_mode) {
+    const int kPreferredAccuracy = 0;  // Ideally perfect (matches GnssLocationProvider)
+    const int kPreferredTimeMsec = 0;  // Ideally immediate
+
+    const auto result = gnss_hal_->setPositionMode_1_1(
+            IGnss::GnssPositionMode::MS_BASED, IGnss::GnssPositionRecurrence::RECURRENCE_PERIODIC,
+            min_interval_msec, kPreferredAccuracy, kPreferredTimeMsec, low_power_mode);
+
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+}
+
+bool GnssHalTest::StartAndCheckFirstLocation() {
+    const auto result = gnss_hal_->start();
+
+    EXPECT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    /*
+     * GnssLocationProvider support of AGPS SUPL & XtraDownloader is not available in VTS,
+     * so allow time to demodulate ephemeris over the air.
+     */
+    const int kFirstGnssLocationTimeoutSeconds = 75;
+
+    wait(kFirstGnssLocationTimeoutSeconds);
+    EXPECT_EQ(location_called_count_, 1);
+
+    if (location_called_count_ > 0) {
+        // don't require speed on first fix
+        CheckLocation(last_location_, false);
+        return true;
+    }
+    return false;
+}
+
+void GnssHalTest::CheckLocation(const GnssLocation_2_0& location, bool check_speed) {
+    const bool check_more_accuracies = (info_called_count_ > 0 && last_info_.yearOfHw >= 2017);
+
+    Utils::checkLocation(location.v1_0, check_speed, check_more_accuracies);
+}
+
+void GnssHalTest::StartAndCheckLocations(int count) {
+    const int kMinIntervalMsec = 500;
+    const int kLocationTimeoutSubsequentSec = 2;
+    const bool kLowPowerMode = false;
+
+    SetPositionMode(kMinIntervalMsec, kLowPowerMode);
+
+    EXPECT_TRUE(StartAndCheckFirstLocation());
+
+    for (int i = 1; i < count; i++) {
+        EXPECT_EQ(std::cv_status::no_timeout, wait(kLocationTimeoutSubsequentSec));
+        EXPECT_EQ(location_called_count_, i + 1);
+        // Don't cause confusion by checking details if no location yet
+        if (location_called_count_ > 0) {
+            // Should be more than 1 location by now, but if not, still don't check first fix speed
+            CheckLocation(last_location_, location_called_count_ > 1);
+        }
+    }
+}
+
+void GnssHalTest::notify() {
+    {
+        std::unique_lock<std::mutex> lock(mtx_);
+        notify_count_++;
+    }
+    cv_.notify_one();
+}
+
+std::cv_status GnssHalTest::wait(int timeout_seconds) {
+    std::unique_lock<std::mutex> lock(mtx_);
+
+    auto status = std::cv_status::no_timeout;
+    while (notify_count_ == 0) {
+        status = cv_.wait_for(lock, std::chrono::seconds(timeout_seconds));
+        if (status == std::cv_status::timeout) return status;
+    }
+    notify_count_--;
+    return status;
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssSetSystemInfoCb(
+    const IGnssCallback::GnssSystemInfo& info) {
+    ALOGI("Info received, year %d", info.yearOfHw);
+    parent_.info_called_count_++;
+    parent_.last_info_ = info;
+    parent_.notify();
+    return Void();
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssSetCapabilitesCb(uint32_t capabilities) {
+    ALOGI("Capabilities received %d", capabilities);
+    parent_.capabilities_called_count_++;
+    parent_.last_capabilities_ = capabilities;
+    parent_.notify();
+    return Void();
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssSetCapabilitiesCb_2_0(uint32_t capabilities) {
+    ALOGI("Capabilities (v2.0) received %d", capabilities);
+    parent_.capabilities_called_count_++;
+    parent_.last_capabilities_ = capabilities;
+    parent_.notify();
+    return Void();
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssNameCb(const android::hardware::hidl_string& name) {
+    ALOGI("Name received: %s", name.c_str());
+    parent_.name_called_count_++;
+    parent_.last_name_ = name;
+    parent_.notify();
+    return Void();
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssLocationCb(const GnssLocation_1_0& location) {
+    ALOGI("Location received");
+    GnssLocation_2_0 location_v2_0;
+    location_v2_0.v1_0 = location;
+    return gnssLocationCbImpl(location_v2_0);
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssLocationCb_2_0(const GnssLocation_2_0& location) {
+    ALOGI("Location (v2.0) received");
+    return gnssLocationCbImpl(location);
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssLocationCbImpl(const GnssLocation_2_0& location) {
+    parent_.location_called_count_++;
+    parent_.last_location_ = location;
+    parent_.notify();
+    return Void();
+}
+
+Return<void> GnssHalTest::GnssCallback::gnssSvStatusCb(
+    const IGnssCallback::GnssSvStatus& svStatus) {
+    ALOGI("GnssSvStatus received");
+    parent_.list_gnss_sv_status_.emplace_back(svStatus);
+    return Void();
+}
+
+Return<void> GnssHalTest::GnssMeasurementCallback::gnssMeasurementCb_2_0(
+    const IGnssMeasurementCallback_2_0::GnssData& data) {
+    ALOGD("GnssMeasurement received. Size = %d", (int)data.measurements.size());
+    parent_.measurement_called_count_++;
+    parent_.last_measurement_ = data;
+    parent_.notify();
+    return Void();
+}
diff --git a/gnss/2.0/vts/functional/gnss_hal_test.h b/gnss/2.0/vts/functional/gnss_hal_test.h
new file mode 100644
index 0000000..7793eb7
--- /dev/null
+++ b/gnss/2.0/vts/functional/gnss_hal_test.h
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GNSS_HAL_TEST_H_
+#define GNSS_HAL_TEST_H_
+
+#include <android/hardware/gnss/2.0/IGnss.h>
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+
+#include <condition_variable>
+#include <list>
+#include <mutex>
+
+using android::hardware::Return;
+using android::hardware::Void;
+
+using android::hardware::gnss::V1_0::GnssLocationFlags;
+using android::hardware::gnss::V2_0::IGnss;
+using android::hardware::gnss::V2_0::IGnssCallback;
+
+using GnssLocation_1_0 = android::hardware::gnss::V1_0::GnssLocation;
+using GnssLocation_2_0 = android::hardware::gnss::V2_0::GnssLocation;
+
+using IGnssMeasurementCallback_1_0 = android::hardware::gnss::V1_0::IGnssMeasurementCallback;
+using IGnssMeasurementCallback_1_1 = android::hardware::gnss::V1_1::IGnssMeasurementCallback;
+using IGnssMeasurementCallback_2_0 = android::hardware::gnss::V2_0::IGnssMeasurementCallback;
+
+using android::sp;
+
+#define TIMEOUT_SEC 2  // for basic commands/responses
+
+// Test environment for GNSS HIDL HAL.
+class GnssHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static GnssHidlEnvironment* Instance() {
+        static GnssHidlEnvironment* instance = new GnssHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IGnss>(); }
+
+   private:
+    GnssHidlEnvironment() {}
+};
+
+// The main test class for GNSS HAL.
+class GnssHalTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    GnssHalTest();
+
+    virtual void SetUp() override;
+
+    virtual void TearDown() override;
+
+    /* Used as a mechanism to inform the test that a callback has occurred */
+    void notify();
+
+    /* Test code calls this function to wait for a callback */
+    std::cv_status wait(int timeout_seconds);
+
+    /* Callback class for data & Event. */
+    class GnssCallback : public IGnssCallback {
+       public:
+        GnssHalTest& parent_;
+
+        GnssCallback(GnssHalTest& parent) : parent_(parent){};
+
+        virtual ~GnssCallback() = default;
+
+        // Dummy callback handlers
+        Return<void> gnssStatusCb(const IGnssCallback::GnssStatusValue /* status */) override {
+            return Void();
+        }
+        Return<void> gnssNmeaCb(int64_t /* timestamp */,
+                                const android::hardware::hidl_string& /* nmea */) override {
+            return Void();
+        }
+        Return<void> gnssAcquireWakelockCb() override { return Void(); }
+        Return<void> gnssReleaseWakelockCb() override { return Void(); }
+        Return<void> gnssRequestLocationCb(bool /* independentFromGnss */) override {
+            return Void();
+        }
+        Return<void> gnssRequestTimeCb() override { return Void(); }
+        // Actual (test) callback handlers
+        Return<void> gnssNameCb(const android::hardware::hidl_string& name) override;
+        Return<void> gnssLocationCb(const GnssLocation_1_0& location) override;
+        Return<void> gnssLocationCb_2_0(const GnssLocation_2_0& location) override;
+        Return<void> gnssSetCapabilitesCb(uint32_t capabilities) override;
+        Return<void> gnssSetCapabilitiesCb_2_0(uint32_t capabilities) override;
+        Return<void> gnssSetSystemInfoCb(const IGnssCallback::GnssSystemInfo& info) override;
+        Return<void> gnssSvStatusCb(const IGnssCallback::GnssSvStatus& svStatus) override;
+
+      private:
+        Return<void> gnssLocationCbImpl(const GnssLocation_2_0& location);
+    };
+
+    /* Callback class for GnssMeasurement. */
+    class GnssMeasurementCallback : public IGnssMeasurementCallback_2_0 {
+       public:
+        GnssHalTest& parent_;
+        GnssMeasurementCallback(GnssHalTest& parent) : parent_(parent){};
+        virtual ~GnssMeasurementCallback() = default;
+
+        // Methods from V1_0::IGnssMeasurementCallback follow.
+        Return<void> GnssMeasurementCb(const IGnssMeasurementCallback_1_0::GnssData&) override {
+            return Void();
+        }
+
+        // Methods from V1_1::IGnssMeasurementCallback follow.
+        Return<void> gnssMeasurementCb(const IGnssMeasurementCallback_1_1::GnssData&) override {
+            return Void();
+        }
+
+        // Methods from V2_0::IGnssMeasurementCallback follow.
+        Return<void> gnssMeasurementCb_2_0(const IGnssMeasurementCallback_2_0::GnssData&) override;
+    };
+
+    /*
+     * SetUpGnssCallback:
+     *   Set GnssCallback and verify the result.
+     */
+    void SetUpGnssCallback();
+
+    /*
+     * StartAndCheckFirstLocation:
+     *   Helper function to start location, and check the first one.
+     *
+     *   <p> Note this leaves the Location request active, to enable Stop call vs. other call
+     *   reordering tests.
+     *
+     * returns  true if a location was successfully generated
+     */
+    bool StartAndCheckFirstLocation();
+
+    /*
+     * CheckLocation:
+     *   Helper function to vet Location fields
+     *
+     *   check_speed: true if speed related fields are also verified.
+     */
+    void CheckLocation(const GnssLocation_2_0& location, const bool check_speed);
+
+    /*
+     * StartAndCheckLocations:
+     *   Helper function to collect, and check a number of
+     *   normal ~1Hz locations.
+     *
+     *   Note this leaves the Location request active, to enable Stop call vs. other call
+     *   reordering tests.
+     */
+    void StartAndCheckLocations(int count);
+
+    /*
+     * StopAndClearLocations:
+     * Helper function to stop locations, and clear any remaining notifications
+     */
+    void StopAndClearLocations();
+
+    /*
+     * SetPositionMode:
+     * Helper function to set positioning mode and verify output
+     */
+    void SetPositionMode(const int min_interval_msec, const bool low_power_mode);
+
+    sp<IGnss> gnss_hal_;         // GNSS HAL to call into
+    sp<IGnssCallback> gnss_cb_;  // Primary callback interface
+
+    // TODO: make these variables thread-safe.
+    /* Count of calls to set the following items, and the latest item (used by
+     * test.)
+     */
+    int info_called_count_;
+    int capabilities_called_count_;
+    int location_called_count_;
+    int measurement_called_count_;
+    int name_called_count_;
+
+    IGnssCallback::GnssSystemInfo last_info_;
+    uint32_t last_capabilities_;
+    GnssLocation_2_0 last_location_;
+    IGnssMeasurementCallback_2_0::GnssData last_measurement_;
+    android::hardware::hidl_string last_name_;
+
+    list<IGnssCallback::GnssSvStatus> list_gnss_sv_status_;
+
+   private:
+    std::mutex mtx_;
+    std::condition_variable cv_;
+    int notify_count_;
+};
+
+#endif  // GNSS_HAL_TEST_H_
diff --git a/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp b/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp
new file mode 100644
index 0000000..b135dba
--- /dev/null
+++ b/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp
@@ -0,0 +1,334 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GnssHalTestCases"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <gnss_hal_test.h>
+
+using android::hardware::hidl_string;
+using android::hardware::hidl_vec;
+
+using IGnssConfiguration_2_0 = android::hardware::gnss::V2_0::IGnssConfiguration;
+using IAGnssRil_2_0 = android::hardware::gnss::V2_0::IAGnssRil;
+using IGnssMeasurement_2_0 = android::hardware::gnss::V2_0::IGnssMeasurement;
+using IGnssMeasurement_1_1 = android::hardware::gnss::V1_1::IGnssMeasurement;
+using IGnssMeasurement_1_0 = android::hardware::gnss::V1_0::IGnssMeasurement;
+using IAGnssRil_2_0 = android::hardware::gnss::V2_0::IAGnssRil;
+using IAGnss_2_0 = android::hardware::gnss::V2_0::IAGnss;
+using IAGnss_1_0 = android::hardware::gnss::V1_0::IAGnss;
+using IAGnssCallback_2_0 = android::hardware::gnss::V2_0::IAGnssCallback;
+
+using android::hardware::gnss::V1_0::IGnssNi;
+using android::hardware::gnss::V2_0::ElapsedRealtimeFlags;
+using android::hardware::gnss::visibility_control::V1_0::IGnssVisibilityControl;
+
+/*
+ * SetupTeardownCreateCleanup:
+ * Requests the gnss HAL then calls cleanup
+ *
+ * Empty test fixture to verify basic Setup & Teardown
+ */
+TEST_F(GnssHalTest, SetupTeardownCreateCleanup) {}
+
+/*
+ * TestGnssMeasurementCallback:
+ * Gets the GnssMeasurementExtension and verify that it returns an actual extension.
+ */
+TEST_F(GnssHalTest, TestGnssMeasurementCallback) {
+    auto gnssMeasurement_2_0 = gnss_hal_->getExtensionGnssMeasurement_2_0();
+    auto gnssMeasurement_1_1 = gnss_hal_->getExtensionGnssMeasurement_1_1();
+    auto gnssMeasurement_1_0 = gnss_hal_->getExtensionGnssMeasurement();
+    ASSERT_TRUE(gnssMeasurement_2_0.isOk() || gnssMeasurement_1_1.isOk() ||
+                gnssMeasurement_1_0.isOk());
+    if (last_capabilities_ & IGnssCallback::Capabilities::MEASUREMENTS) {
+        sp<IGnssMeasurement_2_0> iGnssMeas_2_0 = gnssMeasurement_2_0;
+        sp<IGnssMeasurement_1_1> iGnssMeas_1_1 = gnssMeasurement_1_1;
+        sp<IGnssMeasurement_1_0> iGnssMeas_1_0 = gnssMeasurement_1_0;
+        // At least one interface is non-null.
+        int numNonNull = (int)(iGnssMeas_2_0 != nullptr) + (int)(iGnssMeas_1_1 != nullptr) +
+                         (int)(iGnssMeas_1_0 != nullptr);
+        ASSERT_TRUE(numNonNull >= 1);
+    }
+}
+
+/*
+ * TestGnssConfigurationExtension:
+ * Gets the GnssConfigurationExtension and verifies that it returns an actual extension by
+ * calling a method.
+ *
+ * The GNSS HAL 2.0 implementation must support @2.0::IGnssConfiguration interface due to
+ * the deprecation of some methods in @1.0::IGnssConfiguration interface.
+ */
+TEST_F(GnssHalTest, TestGnssConfigurationExtension) {
+    auto gnssConfiguration = gnss_hal_->getExtensionGnssConfiguration_2_0();
+    ASSERT_TRUE(gnssConfiguration.isOk());
+    sp<IGnssConfiguration_2_0> iGnssConfiguration = gnssConfiguration;
+    ASSERT_NE(iGnssConfiguration, nullptr);
+
+    auto result = iGnssConfiguration->setEsExtensionSec(180);
+    ASSERT_TRUE(result.isOk());
+    // Expected result can be true or false depending on whether HAL implementation supports
+    // detecting emergency sessions without involving the framework.
+}
+
+/*
+ * TestGnssConfiguration_setSuplEs_Deprecation:
+ * Calls setSuplEs and verifies that it returns false.
+ */
+TEST_F(GnssHalTest, TestGnssConfiguration_setSuplEs_Deprecation) {
+    auto gnssConfiguration = gnss_hal_->getExtensionGnssConfiguration_2_0();
+    ASSERT_TRUE(gnssConfiguration.isOk());
+    sp<IGnssConfiguration_2_0> iGnssConfiguration = gnssConfiguration;
+    ASSERT_NE(iGnssConfiguration, nullptr);
+
+    auto result = iGnssConfiguration->setSuplEs(false);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_FALSE(result);
+}
+
+/*
+ * TestGnssConfiguration_setGpsLock_Deprecation:
+ * Calls setGpsLock and verifies that it returns false.
+ */
+TEST_F(GnssHalTest, TestGnssConfiguration_setGpsLock_Deprecation) {
+    auto gnssConfiguration = gnss_hal_->getExtensionGnssConfiguration_2_0();
+    ASSERT_TRUE(gnssConfiguration.isOk());
+    sp<IGnssConfiguration_2_0> iGnssConfiguration = gnssConfiguration;
+    ASSERT_NE(iGnssConfiguration, nullptr);
+
+    auto result = iGnssConfiguration->setGpsLock(0);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_FALSE(result);
+}
+
+/*
+ * TestAGnssRilExtension:
+ * Gets the AGnssRilExtension and verifies that it returns an actual extension.
+ *
+ * The GNSS HAL 2.0 implementation must support @2.0::IAGnssRil interface due to the deprecation
+ * of framework network API methods needed to support the @1.0::IAGnssRil interface.
+ *
+ * TODO (b/121287858): Enforce gnss@2.0 HAL package is supported on devices launched with Q or later
+ */
+TEST_F(GnssHalTest, TestAGnssRilExtension) {
+    auto agnssRil = gnss_hal_->getExtensionAGnssRil_2_0();
+    ASSERT_TRUE(agnssRil.isOk());
+    sp<IAGnssRil_2_0> iAGnssRil = agnssRil;
+    ASSERT_NE(iAGnssRil, nullptr);
+}
+
+/*
+ * TestAGnssRil_UpdateNetworkState_2_0:
+ * 1. Updates GNSS HAL that a network has connected.
+ * 2. Updates GNSS HAL that network has disconnected.
+ */
+TEST_F(GnssHalTest, TestAGnssRil_UpdateNetworkState_2_0) {
+    auto agnssRil = gnss_hal_->getExtensionAGnssRil_2_0();
+    ASSERT_TRUE(agnssRil.isOk());
+    sp<IAGnssRil_2_0> iAGnssRil = agnssRil;
+    ASSERT_NE(iAGnssRil, nullptr);
+
+    // Update GNSS HAL that a network has connected.
+    IAGnssRil_2_0::NetworkAttributes networkAttributes = {
+        .networkHandle = static_cast<uint64_t>(7700664333),
+        .isConnected = true,
+        .capabilities = static_cast<uint16_t>(IAGnssRil_2_0::NetworkCapability::NOT_ROAMING),
+        .apn = "dummy-apn"};
+    auto result = iAGnssRil->updateNetworkState_2_0(networkAttributes);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    // Update GNSS HAL that network has disconnected.
+    networkAttributes.isConnected = false;
+    result = iAGnssRil->updateNetworkState_2_0(networkAttributes);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+}
+
+/*
+ * TestGnssMeasurementCodeType:
+ * Sets a GnssMeasurementCallback, waits for a measurement, and verifies the codeType is valid.
+ */
+TEST_F(GnssHalTest, TestGnssMeasurementCodeType) {
+    const int kFirstGnssMeasurementTimeoutSeconds = 10;
+
+    auto gnssMeasurement = gnss_hal_->getExtensionGnssMeasurement_2_0();
+    if (!gnssMeasurement.isOk()) {
+        return;
+    }
+
+    sp<IGnssMeasurement_2_0> iGnssMeasurement = gnssMeasurement;
+    if (iGnssMeasurement == nullptr) {
+        return;
+    }
+
+    sp<IGnssMeasurementCallback_2_0> callback = new GnssMeasurementCallback(*this);
+
+    auto result = iGnssMeasurement->setCallback_2_0(callback, /* enableFullTracking= */ true);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_EQ(result, IGnssMeasurement_1_0::GnssMeasurementStatus::SUCCESS);
+
+    wait(kFirstGnssMeasurementTimeoutSeconds);
+    EXPECT_EQ(measurement_called_count_, 1);
+    ASSERT_TRUE(last_measurement_.measurements.size() > 0);
+    for (auto measurement : last_measurement_.measurements) {
+        ASSERT_TRUE(
+                ((int)measurement.codeType >=
+                                (int)IGnssMeasurementCallback_2_0::GnssMeasurementCodeType::A &&
+                        (int)measurement.codeType <=
+                                (int)IGnssMeasurementCallback_2_0::GnssMeasurementCodeType::N) ||
+                (int)measurement.codeType ==
+                        (int)IGnssMeasurementCallback_2_0::GnssMeasurementCodeType::OTHER);
+        if ((int)measurement.codeType ==
+                (int)IGnssMeasurementCallback_2_0::GnssMeasurementCodeType::OTHER) {
+            ASSERT_NE(measurement.otherCodeTypeName, "");
+        }
+    }
+
+    iGnssMeasurement->close();
+}
+
+/*
+ * TestAGnssExtension:
+ * Gets the AGnssExtension and verifies that it supports @2.0::IAGnss interface by invoking
+ * a method.
+ *
+ * The GNSS HAL 2.0 implementation must support @2.0::IAGnss interface due to the deprecation
+ * of framework network API methods needed to support the @1.0::IAGnss interface.
+ *
+ * TODO (b/121287858): Enforce gnss@2.0 HAL package is supported on devices launched with Q or later
+ */
+TEST_F(GnssHalTest, TestAGnssExtension) {
+    // Verify IAGnss 2.0 is supported.
+    auto agnss = gnss_hal_->getExtensionAGnss_2_0();
+    ASSERT_TRUE(agnss.isOk());
+    sp<IAGnss_2_0> iAGnss = agnss;
+    ASSERT_NE(iAGnss, nullptr);
+
+    // Set SUPL server host/port
+    auto result = iAGnss->setServer(IAGnssCallback_2_0::AGnssType::SUPL, "supl.google.com", 7275);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+}
+
+/*
+ * TestAGnssExtension_1_0_Deprecation:
+ * Gets the @1.0::IAGnss extension and verifies that it is a nullptr.
+ *
+ * TODO (b/121287858): Enforce gnss@2.0 HAL package is supported on devices launched with Q or later
+ */
+TEST_F(GnssHalTest, TestAGnssExtension_1_0_Deprecation) {
+    // Verify IAGnss 1.0 is not supported.
+    auto agnss_1_0 = gnss_hal_->getExtensionAGnss();
+    ASSERT_TRUE(!agnss_1_0.isOk() || ((sp<IAGnss_1_0>)agnss_1_0) == nullptr);
+}
+
+/*
+ * TestGnssNiExtension_Deprecation:
+ * Gets the @1.0::IGnssNi extension and verifies that it is a nullptr.
+ *
+ * TODO (b/121287858): Enforce gnss@2.0 HAL package is supported on devices launched with Q or later
+ */
+TEST_F(GnssHalTest, TestGnssNiExtension_Deprecation) {
+    // Verify IGnssNi 1.0 is not supported.
+    auto gnssNi = gnss_hal_->getExtensionGnssNi();
+    ASSERT_TRUE(!gnssNi.isOk() || ((sp<IGnssNi>)gnssNi) == nullptr);
+}
+
+/*
+ * TestGnssVisibilityControlExtension:
+ * Gets the GnssVisibilityControlExtension and verifies that it supports the
+ * gnss.visibility_control@1.0::IGnssVisibilityControl interface by invoking a method.
+ *
+ * The GNSS HAL 2.0 implementation must support gnss.visibility_control@1.0::IGnssVisibilityControl.
+ *
+ * TODO (b/121287858): Enforce gnss@2.0 HAL package is supported on devices launched with Q or later
+ */
+TEST_F(GnssHalTest, TestGnssVisibilityControlExtension) {
+    // Verify IGnssVisibilityControl is supported.
+    auto gnssVisibilityControl = gnss_hal_->getExtensionVisibilityControl();
+    ASSERT_TRUE(gnssVisibilityControl.isOk());
+    sp<IGnssVisibilityControl> iGnssVisibilityControl = gnssVisibilityControl;
+    ASSERT_NE(iGnssVisibilityControl, nullptr);
+
+    // Set non-framework proxy apps.
+    hidl_vec<hidl_string> proxyApps{"ims.example.com", "mdt.example.com"};
+    auto result = iGnssVisibilityControl->enableNfwLocationAccess(proxyApps);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+}
+
+/*
+ * TestGnssDataElapsedRealtimeFlags:
+ * Sets a GnssMeasurementCallback, waits for a GnssData object, and verifies the flags in member
+ * elapsedRealitme are valid.
+ */
+TEST_F(GnssHalTest, TestGnssDataElapsedRealtimeFlags) {
+    const int kFirstGnssMeasurementTimeoutSeconds = 10;
+
+    auto gnssMeasurement = gnss_hal_->getExtensionGnssMeasurement_2_0();
+    if (!gnssMeasurement.isOk()) {
+        return;
+    }
+
+    sp<IGnssMeasurement_2_0> iGnssMeasurement = gnssMeasurement;
+    if (iGnssMeasurement == nullptr) {
+        return;
+    }
+
+    sp<IGnssMeasurementCallback_2_0> callback = new GnssMeasurementCallback(*this);
+
+    auto result = iGnssMeasurement->setCallback_2_0(callback, /* enableFullTracking= */ true);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_EQ(result, IGnssMeasurement_1_0::GnssMeasurementStatus::SUCCESS);
+
+    wait(kFirstGnssMeasurementTimeoutSeconds);
+    EXPECT_EQ(measurement_called_count_, 1);
+
+    ASSERT_TRUE((int)last_measurement_.elapsedRealtime.flags >= 0 &&
+                (int)last_measurement_.elapsedRealtime.flags <=
+                        (int)ElapsedRealtimeFlags::HAS_TIME_UNCERTAINTY_NS);
+
+    // We expect a non-zero timestamp when set.
+    if (last_measurement_.elapsedRealtime.flags & ElapsedRealtimeFlags::HAS_TIMESTAMP_NS) {
+        ASSERT_TRUE(last_measurement_.elapsedRealtime.timestampNs != 0);
+    }
+
+    iGnssMeasurement->close();
+}
+
+TEST_F(GnssHalTest, TestGnssLocationElapsedRealtime) {
+    StartAndCheckFirstLocation();
+
+    ASSERT_TRUE((int)last_location_.elapsedRealtime.flags >= 0 &&
+                (int)last_location_.elapsedRealtime.flags <=
+                        (int)ElapsedRealtimeFlags::HAS_TIME_UNCERTAINTY_NS);
+
+    // We expect a non-zero timestamp when set.
+    if (last_location_.elapsedRealtime.flags & ElapsedRealtimeFlags::HAS_TIMESTAMP_NS) {
+        ASSERT_TRUE(last_location_.elapsedRealtime.timestampNs != 0);
+    }
+
+    StopAndClearLocations();
+}
+
+// This test only verify that injectBestLocation_2_0 does not crash.
+TEST_F(GnssHalTest, TestInjectBestLocation_2_0) {
+    StartAndCheckFirstLocation();
+    gnss_hal_->injectBestLocation_2_0(last_location_);
+    StopAndClearLocations();
+}
diff --git a/gnss/common/OWNERS b/gnss/common/OWNERS
new file mode 100644
index 0000000..3ed36da
--- /dev/null
+++ b/gnss/common/OWNERS
@@ -0,0 +1,7 @@
+wyattriley@google.com
+gomo@google.com
+smalkos@google.com
+yuhany@google.com
+
+# VTS team
+yim@google.com
diff --git a/gnss/common/utils/default/Android.bp b/gnss/common/utils/default/Android.bp
new file mode 100644
index 0000000..4ea97fa
--- /dev/null
+++ b/gnss/common/utils/default/Android.bp
@@ -0,0 +1,33 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "android.hardware.gnss@common-default-lib",
+    vendor_available: true,
+    relative_install_path: "hw",
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+    srcs: [
+        "Utils.cpp",
+    ],
+    export_include_dirs: ["include"],
+    shared_libs: [
+        "android.hardware.gnss@1.0",
+    ],
+}
diff --git a/gnss/common/utils/default/Utils.cpp b/gnss/common/utils/default/Utils.cpp
new file mode 100644
index 0000000..b9a06e8
--- /dev/null
+++ b/gnss/common/utils/default/Utils.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <Constants.h>
+#include <Utils.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace common {
+
+using GnssSvFlags = V1_0::IGnssCallback::GnssSvFlags;
+
+GnssLocation Utils::getMockLocation() {
+    GnssLocation location = {.gnssLocationFlags = 0xFF,
+                             .latitudeDegrees = kMockLatitudeDegrees,
+                             .longitudeDegrees = kMockLongitudeDegrees,
+                             .altitudeMeters = kMockAltitudeMeters,
+                             .speedMetersPerSec = kMockSpeedMetersPerSec,
+                             .bearingDegrees = kMockBearingDegrees,
+                             .horizontalAccuracyMeters = kMockHorizontalAccuracyMeters,
+                             .verticalAccuracyMeters = kMockVerticalAccuracyMeters,
+                             .speedAccuracyMetersPerSecond = kMockSpeedAccuracyMetersPerSecond,
+                             .bearingAccuracyDegrees = kMockBearingAccuracyDegrees,
+                             .timestamp = kMockTimestamp};
+    return location;
+}
+
+GnssSvInfo Utils::getSvInfo(int16_t svid, GnssConstellationType type, float cN0DbHz,
+                            float elevationDegrees, float azimuthDegrees) {
+    GnssSvInfo svInfo = {.svid = svid,
+                         .constellation = type,
+                         .cN0Dbhz = cN0DbHz,
+                         .elevationDegrees = elevationDegrees,
+                         .azimuthDegrees = azimuthDegrees,
+                         .svFlag = GnssSvFlags::USED_IN_FIX | GnssSvFlags::HAS_EPHEMERIS_DATA |
+                                   GnssSvFlags::HAS_ALMANAC_DATA};
+    return svInfo;
+}
+
+}  // namespace common
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/common/utils/default/include/Constants.h b/gnss/common/utils/default/include/Constants.h
new file mode 100644
index 0000000..000a9ec
--- /dev/null
+++ b/gnss/common/utils/default/include/Constants.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_gnss_common_Constants_H_
+#define android_hardware_gnss_common_Constants_H_
+
+#include <cstdint>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace common {
+
+const float kMockLatitudeDegrees = 37.4219999;
+const float kMockLongitudeDegrees = -122.0840575;
+const float kMockAltitudeMeters = 1.60062531;
+const float kMockSpeedMetersPerSec = 0;
+const float kMockBearingDegrees = 0;
+const float kMockHorizontalAccuracyMeters = 5;
+const float kMockVerticalAccuracyMeters = 5;
+const float kMockSpeedAccuracyMetersPerSecond = 1;
+const float kMockBearingAccuracyDegrees = 90;
+const int64_t kMockTimestamp = 1519930775453L;
+
+}  // namespace common
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_gnss_common_Constants_H_
diff --git a/gnss/common/utils/default/include/Utils.h b/gnss/common/utils/default/include/Utils.h
new file mode 100644
index 0000000..47c8812
--- /dev/null
+++ b/gnss/common/utils/default/include/Utils.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_gnss_common_default_Utils_H_
+#define android_hardware_gnss_common_default_Utils_H_
+
+#include <android/hardware/gnss/1.0/IGnss.h>
+
+using GnssConstellationType = ::android::hardware::gnss::V1_0::GnssConstellationType;
+using GnssLocation = ::android::hardware::gnss::V1_0::GnssLocation;
+using GnssSvInfo = ::android::hardware::gnss::V1_0::IGnssCallback::GnssSvInfo;
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace common {
+
+struct Utils {
+    static GnssLocation getMockLocation();
+    static GnssSvInfo getSvInfo(int16_t svid, GnssConstellationType type, float cN0DbHz,
+                                float elevationDegrees, float azimuthDegrees);
+};
+
+}  // namespace common
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_gnss_common_default_Utils_H_
diff --git a/gnss/common/utils/vts/Android.bp b/gnss/common/utils/vts/Android.bp
new file mode 100644
index 0000000..99d8cf9
--- /dev/null
+++ b/gnss/common/utils/vts/Android.bp
@@ -0,0 +1,36 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "android.hardware.gnss@common-vts-lib",
+    vendor_available: true,
+    relative_install_path: "hw",
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+    srcs: [
+        "Utils.cpp",
+    ],
+    export_include_dirs: ["include"],
+    shared_libs: [
+        "android.hardware.gnss@1.0",
+    ],
+    static_libs: [
+        "libgtest",
+    ],
+}
diff --git a/gnss/common/utils/vts/Utils.cpp b/gnss/common/utils/vts/Utils.cpp
new file mode 100644
index 0000000..24d6883
--- /dev/null
+++ b/gnss/common/utils/vts/Utils.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <Utils.h>
+#include "gtest/gtest.h"
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace common {
+
+using V1_0::GnssLocationFlags;
+
+void Utils::checkLocation(const GnssLocation& location, bool check_speed,
+                          bool check_more_accuracies) {
+    EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_LAT_LONG);
+    EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_ALTITUDE);
+    if (check_speed) {
+        EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED);
+    }
+    EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_HORIZONTAL_ACCURACY);
+    // New uncertainties available in O must be provided,
+    // at least when paired with modern hardware (2017+)
+    if (check_more_accuracies) {
+        EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_VERTICAL_ACCURACY);
+        if (check_speed) {
+            EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED_ACCURACY);
+            if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING) {
+                EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING_ACCURACY);
+            }
+        }
+    }
+    EXPECT_GE(location.latitudeDegrees, -90.0);
+    EXPECT_LE(location.latitudeDegrees, 90.0);
+    EXPECT_GE(location.longitudeDegrees, -180.0);
+    EXPECT_LE(location.longitudeDegrees, 180.0);
+    EXPECT_GE(location.altitudeMeters, -1000.0);
+    EXPECT_LE(location.altitudeMeters, 30000.0);
+    if (check_speed) {
+        EXPECT_GE(location.speedMetersPerSec, 0.0);
+        EXPECT_LE(location.speedMetersPerSec, 5.0);  // VTS tests are stationary.
+
+        // Non-zero speeds must be reported with an associated bearing
+        if (location.speedMetersPerSec > 0.0) {
+            EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING);
+        }
+    }
+
+    /*
+     * Tolerating some especially high values for accuracy estimate, in case of
+     * first fix with especially poor geometry (happens occasionally)
+     */
+    EXPECT_GT(location.horizontalAccuracyMeters, 0.0);
+    EXPECT_LE(location.horizontalAccuracyMeters, 250.0);
+
+    /*
+     * Some devices may define bearing as -180 to +180, others as 0 to 360.
+     * Both are okay & understandable.
+     */
+    if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING) {
+        EXPECT_GE(location.bearingDegrees, -180.0);
+        EXPECT_LE(location.bearingDegrees, 360.0);
+    }
+    if (location.gnssLocationFlags & GnssLocationFlags::HAS_VERTICAL_ACCURACY) {
+        EXPECT_GT(location.verticalAccuracyMeters, 0.0);
+        EXPECT_LE(location.verticalAccuracyMeters, 500.0);
+    }
+    if (location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED_ACCURACY) {
+        EXPECT_GT(location.speedAccuracyMetersPerSecond, 0.0);
+        EXPECT_LE(location.speedAccuracyMetersPerSecond, 50.0);
+    }
+    if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING_ACCURACY) {
+        EXPECT_GT(location.bearingAccuracyDegrees, 0.0);
+        EXPECT_LE(location.bearingAccuracyDegrees, 360.0);
+    }
+
+    // Check timestamp > 1.48e12 (47 years in msec - 1970->2017+)
+    EXPECT_GT(location.timestamp, 1.48e12);
+}
+
+}  // namespace common
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/common/utils/vts/include/Utils.h b/gnss/common/utils/vts/include/Utils.h
new file mode 100644
index 0000000..f8eeff6
--- /dev/null
+++ b/gnss/common/utils/vts/include/Utils.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_gnss_common_vts_Utils_H_
+#define android_hardware_gnss_common_vts_Utils_H_
+
+#include <android/hardware/gnss/1.0/IGnss.h>
+
+using GnssLocation = ::android::hardware::gnss::V1_0::GnssLocation;
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace common {
+
+struct Utils {
+    static void checkLocation(const GnssLocation& location, bool check_speed,
+                              bool check_more_accuracies);
+};
+
+}  // namespace common
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_gnss_common_vts_Utils_H_
diff --git a/gnss/measurement_corrections/1.0/Android.bp b/gnss/measurement_corrections/1.0/Android.bp
new file mode 100644
index 0000000..237b008
--- /dev/null
+++ b/gnss/measurement_corrections/1.0/Android.bp
@@ -0,0 +1,25 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.gnss.measurement_corrections@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IMeasurementCorrections.hal",
+    ],
+    interfaces: [
+        "android.hardware.gnss@1.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "GnssSingleSatCorrectionFlags",
+        "MeasurementCorrections",
+        "ReflectingPlane",
+        "SingleSatCorrection",
+    ],
+    gen_java: true,
+}
+
diff --git a/gnss/measurement_corrections/1.0/IMeasurementCorrections.hal b/gnss/measurement_corrections/1.0/IMeasurementCorrections.hal
new file mode 100644
index 0000000..934d10f
--- /dev/null
+++ b/gnss/measurement_corrections/1.0/IMeasurementCorrections.hal
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss.measurement_corrections@1.0;
+
+/**
+ * Interface for measurement corrections support.
+ */
+interface IMeasurementCorrections {
+
+    /**
+     * Injects measurement corrections to be used by the HAL to improve the GNSS location output.
+     *
+     * These are NOT to be used to adjust the IGnssMeasurementCallback output values -
+     * those remain raw, uncorrected measurements.
+     *
+     * In general, these are injected when conditions defined by the platform are met, such as when
+     * GNSS Location is being requested at a sufficiently high accuracy, based on the capabilities
+     * of the GNSS chipset as reported in the IGnssCallback.
+     *
+     * @param corrections The computed corrections to be used by the HAL.
+     *
+     * @return success Whether the HAL can accept & use these corrections.
+     */
+     setCorrections(MeasurementCorrections corrections) generates (bool success);
+};
diff --git a/gnss/measurement_corrections/1.0/types.hal b/gnss/measurement_corrections/1.0/types.hal
new file mode 100644
index 0000000..edf26bf
--- /dev/null
+++ b/gnss/measurement_corrections/1.0/types.hal
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss.measurement_corrections@1.0;
+
+import android.hardware.gnss@1.0::GnssConstellationType;
+
+/**
+ * A struct with measurement corrections for a single visible satellites
+ *
+ * The bit mask singleSatCorrectionFlags indicates which correction values are valid in the struct
+ */
+struct SingleSatCorrection {
+
+    /** Contains GnssSingleSatCorrectionFlags bits. */
+    bitfield<GnssSingleSatCorrectionFlags> singleSatCorrectionFlags;
+
+    /**
+     * Defines the constellation of the given satellite.
+     */
+    GnssConstellationType constellation;
+
+    /**
+     * Satellite vehicle ID number, as defined in GnssSvInfo::svid
+     */
+    uint16_t svid;
+
+    /**
+     * Carrier frequency of the signal to be corrected, for example it can be the
+     * GPS center frequency for L1 = 1,575,420,000 Hz, varying GLO channels, etc.
+     *
+     * For a receiver with capabilities to track multiple frequencies for the same satellite,
+     * multiple corrections for the same satellite may be provided.
+     */
+    float carrierFrequencyHz;
+
+    /**
+     * The probability that the satellite is estimated to be in Line-of-Sight condition at the given
+     * location.
+     */
+    float probSatIsLos;
+
+    /**
+     * Excess path length to be subtracted from pseudorange before using it in calculating location.
+     *
+     * Note this value is NOT to be used to adjust the GnssMeasurementCallback outputs.
+     */
+    float excessPathLengthMeters;
+
+    /** Error estimate (1-sigma) for the Excess path length estimate */
+    float excessPathLengthUncertaintyMeters;
+
+    /**
+     * Defines the reflecting plane characteristics such as location and azimuth
+     *
+     * The value is only valid if HAS_REFLECTING_PLANE flag is set. An invalid reflecting plane
+     * means either reflection planes serving is not supported or the satellite signal has gone
+     * through multiple reflections.
+     */
+     ReflectingPlane reflectingPlane;
+};
+
+/**
+ * A struct containing a set of measurement corrections for all used GNSS satellites at the location
+ * specified by latitudeDegrees, longitudeDegrees, altitudeMeters and at the time of week specified
+ * toaGpsNanosecondsOfWeek
+ */
+struct MeasurementCorrections {
+    /** Represents latitude in degrees at which the corrections are computed.. */
+    double latitudeDegrees;
+
+    /** Represents longitude in degrees at which the corrections are computed.. */
+    double longitudeDegrees;
+
+    /**
+     * Represents altitude in meters above the WGS 84 reference ellipsoid at which the corrections
+     * are computed.
+     */
+    double altitudeMeters;
+
+    /**
+     * Represents the horizontal uncertainty (68% confidence) in meters on the device position at
+     * which the corrections are provided.
+     *
+     * This value is useful for example to judge how accurate the provided corrections are.
+     */
+    double horizontalPositionUncertaintyMeters;
+
+    /**
+     * Represents the vertical uncertainty (68% confidence) in meters on the device position at
+     * which the corrections are provided.
+     *
+     * This value is useful for example to judge how accurate the provided corrections are.
+     */
+    double verticalPositionUncertaintyMeters;
+
+    /** Time Of Applicability, GPS time of week in nanoseconds. */
+    uint64_t toaGpsNanosecondsOfWeek;
+
+    /**
+     * A set of SingleSatCorrection each containing measurement corrections for a satellite in view
+     */
+    vec<SingleSatCorrection> satCorrections;
+};
+
+/**
+ * A struct containing the characteristics of the reflecting plane that the satellite signal has
+ * bounced from.
+ *
+ * The value is only valid if HAS_REFLECTING_PLANE flag is set. An invalid reflecting plane
+ * means either reflection planes serving is not supported or the satellite signal has gone
+ * through multiple reflections.
+ */
+struct ReflectingPlane {
+    /** Represents latitude of the reflecting plane in degrees. */
+    double latitudeDegrees;
+
+    /** Represents longitude of the reflecting plane in degrees. */
+    double longitudeDegrees;
+
+    /**
+     * Represents altitude of the reflecting point in the plane in meters above the WGS 84 reference
+     * ellipsoid.
+     */
+    double altitudeMeters;
+
+    /** Represents azimuth clockwise from north of the reflecting plane in degrees. */
+    double azimuthDegrees;
+};
+
+/** Bit mask to indicate which values are valid in a SingleSatCorrection object. */
+enum GnssSingleSatCorrectionFlags : uint16_t {
+    /** GnssSingleSatCorrectionFlags has valid satellite-is-line-of-sight-probability field. */
+    HAS_SAT_IS_LOS_PROBABILITY               = 0x0001,
+    /** GnssSingleSatCorrectionFlags has valid Excess Path Length field. */
+    HAS_EXCESS_PATH_LENGTH                   = 0x0002,
+    /** GnssSingleSatCorrectionFlags has valid Excess Path Length Uncertainty field. */
+    HAS_EXCESS_PATH_LENGTH_UNC               = 0x0004,
+    /** GnssSingleSatCorrectionFlags has valid Reflecting Plane field. */
+    HAS_REFLECTING_PLANE                     = 0x0008
+};
\ No newline at end of file
diff --git a/gnss/visibility_control/1.0/Android.bp b/gnss/visibility_control/1.0/Android.bp
new file mode 100644
index 0000000..40a28c9
--- /dev/null
+++ b/gnss/visibility_control/1.0/Android.bp
@@ -0,0 +1,18 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.gnss.visibility_control@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IGnssVisibilityControl.hal",
+        "IGnssVisibilityControlCallback.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+
diff --git a/gnss/visibility_control/1.0/IGnssVisibilityControl.hal b/gnss/visibility_control/1.0/IGnssVisibilityControl.hal
new file mode 100644
index 0000000..9148127
--- /dev/null
+++ b/gnss/visibility_control/1.0/IGnssVisibilityControl.hal
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss.visibility_control@1.0;
+
+import IGnssVisibilityControlCallback;
+
+/**
+ * Represents the GNSS location reporting permissions and notification interface.
+ *
+ * This interface is used to tell the GNSS HAL implementation whether the framework user has
+ * granted permission to the GNSS HAL implementation to provide GNSS location information for
+ * non-framework (NFW), non-user initiated emergency use cases, and to notify the framework user
+ * of these GNSS location information deliveries.
+ *
+ * For user initiated emergency cases (and for the configured extended emergency session duration),
+ * the GNSS HAL implementation must serve the emergency location supporting network initiated
+ * location requests immediately irrespective of this permission settings.
+ *
+ * There is no separate need for the GNSS HAL implementation to monitor the global device location
+ * on/off setting. Permission to use GNSS for non-framework use cases is expressly controlled
+ * by the method enableNfwLocationAccess(). The framework monitors the location permission settings
+ * of the configured proxy applications(s), and device location settings, and calls the method
+ * enableNfwLocationAccess() whenever the user control proxy applications have, or do not have,
+ * location permission. The proxy applications are used to provide user visibility and control of
+ * location access by the non-framework on/off device entities they are representing.
+ *
+ * For device user visibility, the GNSS HAL implementation must call the method
+ * IGnssVisibilityControlCallback.nfwNotifyCb() whenever location request is rejected or
+ * location information is provided to non-framework entities (on or off device). This includes
+ * the network initiated location requests for user-initiated emergency use cases as well.
+ *
+ * The HAL implementations that support this interface must not report GNSS location, measurement,
+ * status, or other information that can be used to derive user location to any entity when not
+ * expressly authorized by this HAL. This includes all endpoints for location information
+ * off the device, including carriers, vendors, OEM and others directly or indirectly.
+ */
+interface IGnssVisibilityControl {
+    /**
+     * Enables/disables non-framework entity location access permission in the GNSS HAL.
+     *
+     * The framework will call this method to update GNSS HAL implementation every time the
+     * framework user, through the given proxy application(s) and/or device location settings,
+     * explicitly grants/revokes the location access permission for non-framework, non-user
+     * initiated emergency use cases.
+     *
+     * Whenever the user location information is delivered to non-framework entities, the HAL
+     * implementation must call the method IGnssVisibilityControlCallback.nfwNotifyCb() to notify
+     * the framework for user visibility.
+     *
+     * @param proxyApps Full list of package names of proxy Android applications representing
+     * the non-framework location access entities (on/off the device) for which the framework
+     * user has granted non-framework location access permission. The GNSS HAL implementation
+     * must provide location information only to non-framework entities represented by these
+     * proxy applications.
+     *
+     * The package name of the proxy Android application follows the standard Java language
+     * package naming format. For example, com.example.myapp.
+     *
+     * @return success True if the operation was successful.
+     */
+    enableNfwLocationAccess(vec<string> proxyApps) generates (bool success);
+
+    /**
+     * Registers the callback for HAL implementation to use.
+     *
+     * @param callback Handle to IGnssVisibilityControlCallback interface.
+     */
+    setCallback(IGnssVisibilityControlCallback callback) generates (bool success);
+};
\ No newline at end of file
diff --git a/gnss/visibility_control/1.0/IGnssVisibilityControlCallback.hal b/gnss/visibility_control/1.0/IGnssVisibilityControlCallback.hal
new file mode 100644
index 0000000..5a582c2
--- /dev/null
+++ b/gnss/visibility_control/1.0/IGnssVisibilityControlCallback.hal
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss.visibility_control@1.0;
+
+/**
+ * GNSS location reporting permissions and notification callback interface.
+ */
+interface IGnssVisibilityControlCallback {
+    /**
+     * Protocol stack that is requesting the non-framework location information.
+     */
+    enum NfwProtocolStack : uint8_t {
+        /** Cellular control plane requests */
+        CTRL_PLANE                      = 0,
+        /** All types of SUPL requests */
+        SUPL                            = 1,
+
+        /** All types of requests from IMS */
+        IMS                             = 10,
+        /** All types of requests from SIM */
+        SIM                             = 11,
+
+        /** Requests from other protocol stacks */
+        OTHER_PROTOCOL_STACK            = 100
+    };
+
+    /*
+     * Entity that is requesting/receiving the location information.
+     */
+    enum NfwRequestor : uint8_t {
+        /** Wireless service provider */
+        CARRIER                         = 0,
+
+        /** Device manufacturer */
+        OEM                             = 10,
+        /** Modem chipset vendor */
+        MODEM_CHIPSET_VENDOR            = 11,
+        /** GNSS chipset vendor */
+        GNSS_CHIPSET_VENDOR             = 12,
+        /** Other chipset vendor */
+        OTHER_CHIPSET_VENDOR            = 13,
+
+        /** Automobile client */
+        AUTOMOBILE_CLIENT               = 20,
+
+        /** Other sources */
+        OTHER_REQUESTOR                 = 100
+     };
+
+    /**
+     * GNSS response type for non-framework location requests.
+     */
+    enum NfwResponseType : uint8_t {
+        /** Request rejected because framework has not given permission for this use case */
+        REJECTED                        = 0,
+
+        /** Request accepted but could not provide location because of a failure */
+        ACCEPTED_NO_LOCATION_PROVIDED   = 1,
+
+        /** Request accepted and location provided */
+        ACCEPTED_LOCATION_PROVIDED      = 2,
+     };
+
+    /**
+     * Represents a non-framework location information request/response notification.
+     */
+    struct NfwNotification {
+        /**
+         * Package name of the Android proxy application representing the non-framework
+         * entity that requested location. Set to empty string if unknown.
+         */
+        string proxyAppPackageName;
+
+        /** Protocol stack that initiated the non-framework location request. */
+        NfwProtocolStack protocolStack;
+
+        /**
+         * Name of the protocol stack if protocolStack field is set to OTHER_PROTOCOL_STACK.
+         * Otherwise, set to empty string.
+         *
+         * This field is opaque to the framework and used for logging purposes.
+         */
+        string otherProtocolStackName;
+
+        /** Source initiating/receiving the location information. */
+        NfwRequestor requestor;
+
+        /**
+         * Identity of the endpoint receiving the location information. For example, carrier
+         * name, OEM name, SUPL SLP/E-SLP FQDN, chipset vendor name, etc.
+         *
+         * This field is opaque to the framework and used for logging purposes.
+         */
+        string requestorId;
+
+        /** Indicates whether location information was provided for this request. */
+        NfwResponseType responseType;
+
+        /** Is the device in user initiated emergency session. */
+        bool inEmergencyMode;
+
+        /** Is cached location provided */
+        bool isCachedLocation;
+    };
+
+    /**
+     * Callback to report a non-framework delivered location.
+     *
+     * The GNSS HAL implementation must call this method to notify the framework whenever
+     * a non-framework location request is made to the GNSS HAL.
+     *
+     * Non-framework entities like low power sensor hubs that request location from GNSS and
+     * only pass location information through Android framework controls are exempt from this
+     * power-spending reporting. However, low power sensor hubs or other chipsets which may send
+     * the location information to anywhere other than Android framework (which provides user
+     * visibility and control), must report location information use through this API whenever
+     * location information (or events driven by that location such as "home" location detection)
+     * leaves the domain of that low power chipset.
+     *
+     * To avoid overly spamming the framework, high speed location reporting of the exact same
+     * type may be throttled to report location at a lower rate than the actual report rate, as
+     * long as the location is reported with a latency of no more than the larger of 5 seconds,
+     * or the next the Android processor awake time. For example, if an Automotive client is
+     * getting location information from the GNSS location system at 20Hz, this method may be
+     * called at 1Hz. As another example, if a low power processor is getting location from the
+     * GNSS chipset, and the Android processor is asleep, the notification to the Android HAL may
+     * be delayed until the next wake of the Android processor.
+     *
+     * @param notification Non-framework delivered location request/response description.
+     */
+    nfwNotifyCb(NfwNotification notification);
+
+    /**
+     * Tells if the device is currently in an emergency session.
+     *
+     * Emergency session is defined as the device being actively in a user initiated emergency
+     * call or in post emergency call extension time period.
+     *
+     * If the GNSS HAL implementation cannot determine if the device is in emergency session
+     * mode, it must call this method to confirm that the device is in emergency session before
+     * serving network initiated emergency SUPL and Control Plane location requests.
+     *
+     * @return success True if the framework determines that the device is in emergency session.
+     */
+    isInEmergencySession() generates (bool success);
+};
\ No newline at end of file
diff --git a/graphics/allocator/2.0/default/android.hardware.graphics.allocator@2.0-service.rc b/graphics/allocator/2.0/default/android.hardware.graphics.allocator@2.0-service.rc
index 6eee71f..a2a881a 100644
--- a/graphics/allocator/2.0/default/android.hardware.graphics.allocator@2.0-service.rc
+++ b/graphics/allocator/2.0/default/android.hardware.graphics.allocator@2.0-service.rc
@@ -1,5 +1,6 @@
 service vendor.gralloc-2-0 /vendor/bin/hw/android.hardware.graphics.allocator@2.0-service
     class hal animation
+    interface android.hardware.graphics.allocator@2.0::IAllocator default
     user system
     group graphics drmrpc
     capabilities SYS_NICE
diff --git a/graphics/allocator/3.0/Android.bp b/graphics/allocator/3.0/Android.bp
new file mode 100644
index 0000000..fa3e2ce
--- /dev/null
+++ b/graphics/allocator/3.0/Android.bp
@@ -0,0 +1,21 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.allocator@3.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IAllocator.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hardware.graphics.mapper@3.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: false,
+}
+
diff --git a/graphics/allocator/3.0/IAllocator.hal b/graphics/allocator/3.0/IAllocator.hal
new file mode 100644
index 0000000..34b08e7
--- /dev/null
+++ b/graphics/allocator/3.0/IAllocator.hal
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.allocator@3.0;
+
+import android.hardware.graphics.mapper@3.0;
+
+interface IAllocator {
+    /**
+     * Retrieves implementation-defined debug information, which will be
+     * displayed during, for example, `dumpsys SurfaceFlinger`.
+     *
+     * @return debugInfo is a string of debug information.
+     */
+    dumpDebugInfo() generates (string debugInfo);
+
+    /**
+     * Allocates buffers with the properties specified by the descriptor.
+     *
+     * Allocations should be optimized for usage bits provided in the
+     * descriptor.
+     *
+     * @param descriptor Properties of the buffers to allocate. This must be
+     *     obtained from IMapper::createDescriptor().
+     * @param count The number of buffers to allocate.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_DESCRIPTOR` if the descriptor is invalid.
+     *     - `NO_RESOURCES` if the allocation cannot be fulfilled at this time.
+     *     - `UNSUPPORTED` if any of the properties encoded in the descriptor
+     *       are not supported.
+     * @return stride The number of pixels between two consecutive rows of
+     *     an allocated buffer, when the concept of consecutive rows is defined.
+     *     Otherwise, it has no meaning.
+     * @return buffers Array of raw handles to the allocated buffers.
+     */
+    allocate(BufferDescriptor descriptor, uint32_t count)
+        generates (Error error,
+                   uint32_t stride,
+                   vec<handle> buffers);
+};
+
diff --git a/graphics/bufferqueue/2.0/Android.bp b/graphics/bufferqueue/2.0/Android.bp
new file mode 100644
index 0000000..5385f28
--- /dev/null
+++ b/graphics/bufferqueue/2.0/Android.bp
@@ -0,0 +1,27 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.bufferqueue@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IGraphicBufferProducer.hal",
+        "IProducerListener.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "ConnectionType",
+        "SlotIndex",
+        "Status",
+    ],
+    gen_java: true,
+}
+
diff --git a/graphics/bufferqueue/2.0/IGraphicBufferProducer.hal b/graphics/bufferqueue/2.0/IGraphicBufferProducer.hal
new file mode 100644
index 0000000..734c0b4
--- /dev/null
+++ b/graphics/bufferqueue/2.0/IGraphicBufferProducer.hal
@@ -0,0 +1,648 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.bufferqueue@2.0;
+
+import android.hardware.graphics.common@1.2::HardwareBuffer;
+import android.hardware.graphics.common@1.2::HardwareBufferDescription;
+import android.hardware.graphics.common@1.2::Rect;
+
+import IProducerListener;
+
+/**
+ * Ref: frameworks/native/include/gui/IGraphicBufferProducer.h:
+ *      IGraphicBufferProducer
+ * This is a wrapper/wrapped HAL interface for the actual binder interface.
+ */
+interface IGraphicBufferProducer {
+    /**
+     * Sets the maximum number of buffers that can be dequeued at one time. If
+     * this method succeeds, any new buffer slots shall be both unallocated and
+     * owned by the buffer queue, i.e., they are not owned by the producer or
+     * the consumer. Calling this may cause some buffer slots to be emptied. If
+     * the caller is caching the contents of the buffer slots, it must empty
+     * that cache after calling this method.
+     *
+     * @p maxDequeuedBuffers must not be less than the number of currently
+     * dequeued buffer slots; otherwise, the returned @p status shall be
+     * `BAD_VALUE`.
+     *
+     * @p maxDequeuedBuffers must be at least 1 (inclusive), but at most
+     * (`NUM_BUFFER_SLOTS` - the minimum undequeued buffer count) (exclusive).
+     * The minimum undequeued buffer count can be obtained by calling
+     * `query(ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS)`.
+     *
+     * Before calling setMaxDequeuedBufferCount(), the caller must make sure
+     * that
+     *   - @p maxDequeuedBuffers is greater than or equal to 1.
+     *   - @p maxDequeuedBuffers is greater than or equal to the number of
+     *     currently dequeued buffer slots.
+     * If any of these conditions do not hold, or if the request to set the new
+     * maximum number of dequeued buffers cannot be accomplished for any other
+     * reasons, `BAD_VALUE` shall be returned in @p status.
+     *
+     * @param maxDequeuedBuffers The desired number of buffers that can be
+     *     dequeued at one time.
+     * @return status Status of the call.
+     */
+    setMaxDequeuedBufferCount(
+            int32_t maxDequeuedBuffers
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Assigns a newly created buffer to the given slot index. The client is
+     * expected to mirror the slot-to-buffer mapping so that it is not necessary
+     * to transfer a `HardwareBuffer` object for every dequeue operation.
+     *
+     * If @p slot is not a valid slot index corresponding to a dequeued buffer,
+     * the call shall fail with @p status set to `BAD_VALUE`.
+     *
+     * @param slot Slot index.
+     * @return status Status of the call.
+     * @return buffer New buffer associated to the given slot index.
+     */
+    requestBuffer(
+            int32_t slot
+        ) generates (
+            Status status,
+            HardwareBuffer buffer
+        );
+
+    /**
+     * Sets the async flag: whether the producer intends to asynchronously queue
+     * buffers without blocking. Typically this is used for triple-buffering
+     * and/or when the swap interval is set to zero.
+     *
+     * Enabling async mode may internally allocate an additional buffer to allow
+     * for the asynchronous behavior. If it is not enabled, queue/dequeue calls
+     * may block.
+     *
+     * Changing the async flag may affect the number of available slots. If the
+     * adjustment to the number of slots cannot be made, @p status shall be set
+     * to `BAD_VALUE`.
+     *
+     * @param async True if the asynchronous operation is desired; false
+     *     otherwise.
+     * @return status Status of the call.
+     */
+    setAsyncMode(
+            bool async
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Input data for dequeueBuffer() specifying desired attributes of a buffer
+     * to dequeue.
+     *
+     * This structure contains 4 fields from
+     * +llndk libnativewindow#AHardwareBuffer_Desc.
+     *
+     * The `width` and `height` parameters must be no greater than the minimum
+     * of `GL_MAX_VIEWPORT_DIMS` and `GL_MAX_TEXTURE_SIZE` (see:
+     * glGetIntegerv()). An error due to invalid dimensions may not be reported
+     * until updateTexImage() is called.
+     *
+     * If `width` and `height` are both zero, the default dimensions shall be
+     * used. If only one of `width` and `height` is zero, dequeueBuffer() shall
+     * return `BAD_VALUE` in `status`.
+     *
+     * If `format` is zero, the default format shall be used.
+     *
+     * `usage` shall be merged with the usage flags set from the consumer side.
+     *
+     * @sa +llndk libnativewindow#AHardwareBuffer_Desc.
+     */
+    struct DequeueBufferInput {
+        uint32_t width;
+        uint32_t height;
+        uint32_t format;
+        uint64_t usage;
+    };
+
+    /**
+     * Output data for dequeueBuffer().
+     *
+     * A `DequeueBufferOutput` object returned from dequeueBuffer() shall be
+     * valid if and only if `status` returned from the same call is `OK`.
+     */
+    struct DequeueBufferOutput {
+        /**
+         * The number of frames that have elapsed since the buffer was last
+         * queued.
+         */
+        uint64_t bufferAge;
+        /**
+         * Whether the client must call requestBuffer().
+         */
+        bool bufferNeedsReallocation;
+        /**
+         * Whether the client must discard the mirrored slot-to-buffer
+         * mapping.
+         */
+        bool releaseAllBuffers;
+        /**
+         * Fence associated with the buffer.
+         *
+         * If this is an empty fence, the buffer may be written immediately;
+         * otherwise, the buffer must not be written to until the fence signals.
+         */
+        Fence fence;
+    };
+
+    /**
+     * Requests a new buffer slot for the client to use. Ownership of the slot
+     * is transfered to the client, meaning that the server shall not use the
+     * contents of the buffer associated with that slot.
+     *
+     * On success, @p status shall be `OK`, and @p output shall contain valid
+     * information of the call. Otherwise, the contents of @p output are
+     * meaningless.
+     *
+     * The slot index returned in @p slot may or may not contain a buffer
+     * (client-side). If the slot is empty, the client must call
+     * requestBuffer() to assign a new buffer to that slot.
+     *
+     * Once the client is done filling this buffer, it is expected to transfer
+     * buffer ownership back to the server with either cancelBuffer() on
+     * the dequeued slot or to fill in the contents of its associated buffer
+     * contents and call queueBuffer().
+     *
+     * If dequeueBuffer() returns with `output.releaseAllBuffers` set to `true`,
+     * the client is expected to release all of the mirrored slot-to-buffer
+     * mappings.
+     *
+     * If dequeueBuffer() returns with `output.bufferNeedsReallocation` set to
+     * `true`, the client is expected to call requestBuffer() immediately.
+     *
+     * The returned `output.fence` shall be updated to hold the fence associated
+     * with the buffer. The contents of the buffer must not be overwritten until
+     * the fence signals. If the fence is an empty fence, the buffer may be
+     * written immediately.
+     *
+     * This call shall block until a buffer is available to be dequeued. If
+     * both the producer and consumer are controlled by the app, then this call
+     * can never block and shall return `WOULD_BLOCK` in @p status if no buffer
+     * is available.
+     *
+     * If a dequeue operation shall cause certain conditions on the number of
+     * buffers to be violated (such as the maximum number of dequeued buffers),
+     * @p status shall be set to `INVALID_OPERATION` to indicate failure.
+     *
+     * If a dequeue operation cannot be completed within the time period
+     * previously set by setDequeueTimeout(), the return @p status shall
+     * `TIMED_OUT`.
+     *
+     * See @ref DequeueBufferInput for more information on the @p input
+     * parameter.
+     *
+     * @param input See #DequeueBufferInput for more information.
+     * @param status Status of the call.
+     * @param slot Slot index.
+     * @param output See #DequeueBufferOutput for more information.
+     *
+     * @sa queueBuffer(), requestBuffer().
+     */
+    dequeueBuffer(
+            DequeueBufferInput input
+        ) generates (
+            Status status,
+            int32_t slot,
+            DequeueBufferOutput output
+        );
+
+    /**
+     * Attempts to remove all ownership of the buffer in the given slot from the
+     * buffer queue.
+     *
+     * If this call succeeds, the slot shall be freed, and there shall be no way
+     * to obtain the buffer from this interface. The freed slot shall remain
+     * unallocated until either it is selected to hold a freshly allocated
+     * buffer in dequeueBuffer() or a buffer is attached to the slot. The buffer
+     * must have already been dequeued, and the caller must already possesses
+     * the buffer (i.e., must have called requestBuffer()).
+     *
+     * @param slot Slot index.
+     * @return status Status of the call.
+     */
+    detachBuffer(
+            int32_t slot
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Dequeues a buffer slot, requests the buffer associated to the slot, and
+     * detaches it from the buffer queue. This is equivalent to calling
+     * dequeueBuffer(), requestBuffer(), and detachBuffer() in succession except
+     * for two things:
+     *   1. It is unnecessary to provide a #DequeueBufferInput object.
+     *   2. The call shall not block, since if it cannot find an appropriate
+     *      buffer to return, it shall return an error instead.
+     *
+     * Only slots that are free but still contain a buffer shall be considered,
+     * and the oldest of those shall be returned. @p buffer is equivalent to the
+     * buffer that would be returned from requestBuffer(), and @p fence is
+     * equivalent to the fence that would be returned from dequeueBuffer().
+     *
+     * @return status Status of the call.
+     * @return buffer Buffer just released from the buffer queue.
+     * @return fence Fence associated to @p buffer.
+     *
+     * @sa dequeueBuffer(), requestBuffer(), detachBuffer().
+     */
+    detachNextBuffer(
+        ) generates (
+            Status status,
+            HardwareBuffer buffer,
+            Fence fence
+        );
+
+    /**
+     * Attempts to transfer ownership of a buffer to the buffer queue.
+     *
+     * If this call succeeds, it shall be as if this buffer was dequeued from the
+     * returned slot index. As such, this call shall fail if attaching this
+     * buffer would cause too many buffers to be simultaneously dequeued.
+     *
+     * If the returned @p releaseAllBuffers is `true`, the caller is expected to
+     * release all of the mirrored slot-to-buffer mappings.
+     *
+     * See dequeueBuffer() for conditions that may cause the call to fail.
+     *
+     * @param buffer Buffer to attach to the buffer queue.
+     * @return status Status of the call.
+     * @return slot Slot index assigned to @p buffer.
+     * @return releaseAllBuffers Whether the caller is expected to release all
+     *     of the mirrored slot-to-buffer mappings.
+     *
+     * @sa dequeueBuffer().
+     */
+    attachBuffer(
+            HardwareBuffer buffer
+        ) generates (
+            Status status,
+            int32_t slot,
+            bool releaseAllBuffers
+        );
+
+    struct QueueBufferInput {
+        /**
+         * Timestamp in nanoseconds.
+         */
+        int64_t timestamp;
+        /**
+         * Whether the timestamp was synthesized at queue time.
+         */
+        bool isAutoTimestamp;
+        /**
+         * Dataspace of the contents.
+         *
+         * @sa +ndk libnativewindow#ADataSpace.
+         */
+        int32_t dataSpace;
+        /**
+         * Crop rectangle that is used as a hint to the consumer.
+         */
+        Rect crop;
+        /**
+         * Transformation flags.
+         *
+         * @sa +ndk libnativewindow#ANativeWindowTransform.
+         */
+        int32_t transform;
+        /**
+         * The sticky transform set in Surface (only used by the LEGACY camera
+         * mode).
+         *
+         * @sa +ndk libnativewindow#ANativeWindowTransform.
+         */
+        int32_t stickyTransform;
+        /**
+         * Fence that the consumer must wait on before reading the buffer. An
+         * empty fence indicates that the buffer is ready immediately.
+         */
+        Fence fence;
+        /**
+         * List of rectangular pieces covering the damage region.
+         */
+        vec<Rect> surfaceDamage;
+    };
+
+    /**
+     * Information about the queued buffer. `QueueBufferOutput` is used in both
+     * queueBuffer() and connect().
+     */
+    struct QueueBufferOutput {
+        /**
+         * Default width of a buffer in the buffer queue.
+         */
+        uint32_t width;
+        /**
+         * Default height of a buffer in the buffer queue.
+         */
+        uint32_t height;
+        /**
+         * The transform hint of the buffer queue.
+         *
+         * @sa +ndk libnativewindow#ANativeWindowTransform.
+         */
+        int32_t transformHint;
+        /**
+         * The number of pending buffers in the buffer queue. If this is
+         * returned from queueBuffer(), the number shall include the buffer that
+         * has just been queued.
+         */
+        uint32_t numPendingBuffers;
+        /**
+         * The frame number of the next frame. The buffer queue maintains this
+         * number and makes sure that it is increasing for every successful
+         * queueBuffer() call.
+         */
+        uint64_t nextFrameNumber;
+        /**
+         * After a successful queueBuffer() call, #bufferReplaced shall be set to
+         * true if the queued buffer replaced a previously queued buffer that
+         * has not been consumed.
+         */
+        bool bufferReplaced;
+    };
+
+    /**
+     * Indicates that the client has finished filling in the contents of the
+     * buffer associated with slot and transfers ownership of that slot back to
+     * the buffer queue.
+     *
+     * @p status may be set to `BAD_VALUE` if any of the following conditions
+     * hold:
+     *   - The buffer queue is operating in the asynchronous mode, and the
+     *     buffer count was smaller than the maximum number of buffers that can
+     *     be allocated at once.
+     *   - @p slot is an invalid slot index, i.e., the slot is not owned by the
+     *     client by previously calling dequeueBuffer(), requestBuffer() or
+     *     attachBuffer().
+     *   - The crop rectangle is not contained in the buffer.
+     *
+     * Upon success, the output shall be filled with meaningful values
+     * (refer to the documentation of @ref QueueBufferOutput).
+     *
+     * @param slot Slot index.
+     * @param input See @ref QueueBufferInput.
+     * @return status Status of the call.
+     * @return output See @ref QueueBufferOutput.
+     *
+     * @sa #QueueBufferInput, #QueueBufferOutput, dequeueBuffer().
+     */
+    queueBuffer(
+            int32_t slot,
+            QueueBufferInput input
+        ) generates (
+            Status status,
+            QueueBufferOutput output
+        );
+
+    /**
+     * Indicates that the client does not wish to fill in the buffer associated
+     * with the slot and transfers ownership of the slot back to the server. The
+     * buffer is not queued for use by the consumer.
+     *
+     * If @p fence is not an empty fence, the buffer shall not be overwritten
+     * until the fence signals. @p fence is usually obtained from
+     * dequeueBuffer().
+     *
+     * @param slot Slot index.
+     * @param fence Fence for the canceled buffer.
+     * @return status Status of the call.
+     */
+    cancelBuffer(
+            int32_t slot,
+            Fence fence
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Retrieves information for this surface.
+     *
+     * @param what What to query. @p what must be one of the values in
+     *     +llndk libnativewindow#ANativeWindowQuery.
+     * @return status Status of the call.
+     * @return value The value queried. The set of possible values depends on
+     *     the value of @p what.
+     *
+     * @sa +llndk libnativewindow#ANativeWindowQuery.
+     */
+    query(
+            int32_t what
+        ) generates (
+            int32_t result,
+            int32_t value
+        );
+
+    /**
+     * Attempts to connect the client as a producer of the buffer queue.
+     * This method must be called before any other methods in this interface.
+     *
+     * If the buffer queue does not have a consumer ready (connected), the
+     * return @p status shall be `NO_INIT`.
+     *
+     * If any of the following conditions hold, the error code `BAD_VALUE` shall
+     * be reported in @p status:
+     *   - The producer is already connected.
+     *   - The number of available slots cannot be adjusted to accommodate the
+     *     supplied value of @p producerControlledByApp.
+     *
+     * @param listener An optional callback object that can be provided if the
+     *     client wants to be notified when the consumer releases a buffer back
+     *     to the buffer queue.
+     * @param api How the client shall write to buffers.
+     * @param producerControlledByApp `true` if the producer is hosted by an
+     *     untrusted process (typically application-forked processes). If both
+     *     the producer and the consumer are controlled by app, the buffer queue
+     *     shall operate in the asynchronous mode regardless of the async flag
+     *     set by setAsyncMode().
+     * @return status Status of the call.
+     * @return output See #QueueBufferOutput for more information.
+     *
+     * @sa #QueueBufferOutput, disconnect(), setAsyncMode().
+     */
+    connect(
+            IProducerListener listener,
+            ConnectionType api,
+            bool producerControlledByApp
+        ) generates (
+            Status status,
+            QueueBufferOutput output
+        );
+
+    /**
+     * Attempts to disconnect the client from the producer end of the buffer
+     * queue.
+     *
+     * Calling this method shall cause any subsequent calls to other
+     * @ref IGraphicBufferProducer methods apart from connect() to fail.
+     * A successful connect() call afterwards may allow other methods to succeed
+     * again.
+     *
+     * Disconnecting from an abandoned buffer queue is legal and is considered a
+     * no-op.
+     *
+     * @param api The type of connection to disconnect. Supplying the value of
+     *     `CURRENTLY_CONNECTED` to @p api has the same effect as supplying the
+     *     current connection type. If the producer end is not connected,
+     *     supplying `CURRENTLY_CONNECTED` shall result in a successful no-op
+     *     call.
+     * @return status Status of the call.
+     *
+     * @sa connect().
+     */
+    disconnect(
+            ConnectionType api
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Allocates buffers based on the given dimensions, format and usage.
+     *
+     * This function shall allocate up to the maximum number of buffers
+     * permitted by the current buffer queue configuration. It shall use the
+     * given format, dimensions, and usage bits, which are interpreted in the
+     * same way as for dequeueBuffer(), and the async flag must be set the same
+     * way as for dequeueBuffer() to ensure that the correct number of buffers
+     * are allocated. This is most useful to avoid an allocation delay during
+     * dequeueBuffer(). If there are already the maximum number of buffers
+     * allocated, this function has no effect.
+     *
+     * A value of 0 in @p width, @p height or @p format indicates that the
+     * buffer queue can pick the default value.
+     *
+     * @param width Width of buffers to allocate.
+     * @param height Height of buffers to allocate.
+     * @param format Format of buffers to allocate.
+     * @param usage Usage of bufferes to allocate.
+     * @return status Status of the call.
+     */
+    allocateBuffers(
+            uint32_t width,
+            uint32_t height,
+            uint32_t format,
+            uint64_t usage
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Sets whether dequeueBuffer() is allowed to allocate new buffers.
+     *
+     * Normally dequeueBuffer() does not discriminate between free slots which
+     * already have an allocated buffer and those which do not, and shall
+     * allocate a new buffer if the slot doesn't have a buffer or if the slot's
+     * buffer doesn't match the requested size, format, or usage. This method
+     * allows the producer to restrict the eligible slots to those which already
+     * have an allocated buffer of the correct size, format, and usage. If no
+     * eligible slot is available, dequeueBuffer() shall block or return an
+     * error.
+     *
+     * @param allow Whether to allow new buffers to be allocated in
+     *     dequeueBuffer().
+     * @return status Status of the call.
+     */
+    allowAllocation(
+            bool allow
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Sets the current generation number of the buffer queue.
+     *
+     * This generation number shall be inserted into any buffers allocated by the
+     * buffer queue, and any attempts to attach a buffer with a different
+     * generation number shall fail. Buffers already in the queue are not
+     * affected and shall retain their current generation number. The generation
+     * number defaults to 0, i.e., buffers allocated before the first call to
+     * setGenerationNumber() shall be given 0 as their generation numbers.
+     *
+     * @param generationNumber New generation number. The client must make sure
+     *     that @p generationNumber is different from the previous generation
+     *     number if it wants to deprecate old buffers.
+     * @return status Status of the call.
+     */
+    setGenerationNumber(
+            uint32_t generationNumber
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Sets how long dequeueBuffer() shall wait for a buffer to become available
+     * before returning an error `TIMED_OUT`.
+     *
+     * This timeout also affects the attachBuffer() call, which shall block if
+     * there is not a free slot available into which the attached buffer can be
+     * placed.
+     *
+     * By default, the buffer queue shall wait forever, which is equivalent to
+     * setting @p timeoutNs equal to any negative number (such as `-1`). If
+     * @p timeoutNs is non-negative, setDequeueTimeout() shall disable
+     * non-blocking mode and its corresponding spare buffer (which is used to
+     * ensure a buffer is always available).
+     *
+     * Changing the dequeue timeout may affect the number of buffers. (See
+     * setAsyncMode().) If the adjustment to the number of buffers inside the
+     * buffer queue is not feasible, @p status shall be set to `BAD_VALUE`.
+     *
+     * @param timeoutNs Amount of time dequeueBuffer() is allowed to block
+     *     before returning `TIMED_OUT`. If @p timeoutNs is negative,
+     *     dequeueBuffer() shall not be able to return `TIMED_OUT`. Instead, it
+     *     may block forever or return `WOULD_BLOCK`.
+     * @return status Status of the call.
+     *
+     * @sa dequeueBuffer(), setAsyncMode(), query().
+     */
+    setDequeueTimeout(
+            int64_t timeoutNs
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Returns a unique id for this buffer queue.
+     *
+     * @return id System-wide unique id of the buffer queue.
+     */
+    getUniqueId(
+        ) generates (
+            uint64_t id
+        );
+
+    /**
+     * Returns the name of the connected consumer.
+     *
+     * \note This is used for debugging only.
+     *
+     * @return name Name of the consumer.
+     */
+    getConsumerName(
+        ) generates (
+            string name
+        );
+
+};
+
diff --git a/graphics/bufferqueue/2.0/IProducerListener.hal b/graphics/bufferqueue/2.0/IProducerListener.hal
new file mode 100644
index 0000000..bc478ed
--- /dev/null
+++ b/graphics/bufferqueue/2.0/IProducerListener.hal
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.bufferqueue@2.0;
+
+/**
+ * Listener interface.
+ */
+interface IProducerListener {
+    /**
+     * Notifies the listener when buffers are released.
+     *
+     * This function is usually called by the consumer.
+     *
+     * @param count The number of buffers released (since the last call to
+     *     onBufferReleased()).
+     */
+    oneway onBuffersReleased(uint32_t count);
+};
+
diff --git a/graphics/bufferqueue/2.0/types.hal b/graphics/bufferqueue/2.0/types.hal
new file mode 100644
index 0000000..f6bc2d9
--- /dev/null
+++ b/graphics/bufferqueue/2.0/types.hal
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.bufferqueue@2.0;
+
+/**
+ * Possible return values from a function call.
+ */
+enum Status : int32_t {
+    /**
+     * The call succeeds.
+     */
+    OK = 0,
+    /**
+     * The function fails allocate memory.
+     */
+    NO_MEMORY = -12,
+    /**
+     * The buffer queue has been abandoned, no consumer is connected, or no
+     * producer is connected at the time of the call.
+     */
+    NO_INIT = -19,
+    /**
+     * Some of the provided input arguments are invalid.
+     */
+    BAD_VALUE = -22,
+    /**
+     * An unexpected death of some object prevents the operation from
+     * continuing.
+     *
+     * @note This status value is different from a transaction failure, which
+     * should be detected by isOk().
+     */
+    DEAD_OBJECT = -32,
+    /**
+     * The internal state of the buffer queue does not permit the operation.
+     */
+    INVALID_OPERATION = -38,
+    /**
+     * The call fails to finish within the specified time limit.
+     */
+    TIMED_OUT = -110,
+    /**
+     * The buffer queue is operating in a non-blocking mode, but the call cannot
+     * be completed without blocking.
+     */
+    WOULD_BLOCK = 0xfffffffb,
+    /**
+     * The call fails because of a reason not listed above.
+     */
+    UNKNOWN_ERROR = 0xffffffff,
+};
+
+/**
+ * Special values for a slot index.
+ */
+enum SlotIndex : int32_t {
+    /**
+     * Invalid/unspecified slot index. This may be returned from a function that
+     * returns a slot index if the call is unsuccessful.
+     */
+    INVALID = -1,
+    UNSPECIFIED = -1,
+};
+
+/**
+ * An "empty" fence can be an empty handle (containing no fds and no ints) or a
+ * fence with one fd that is equal to -1 and no ints.
+ *
+ * A valid fence is an empty fence or a native handle with exactly one fd and no
+ * ints.
+ */
+typedef handle Fence;
+
+/**
+ * How buffers shall be produced. One of these values must be provided in a call
+ * to IGraphicBufferProducer::connect() and
+ * IGraphicBufferProducer::disconnect().
+ */
+enum ConnectionType : int32_t {
+    /**
+     * This value can be used only as an input to
+     * IGraphicBufferProducer::disconnect().
+     */
+    CURRENTLY_CONNECTED = -1,
+    /**
+     * Buffers shall be queued by EGL via `eglSwapBuffers()` after being filled
+     * using OpenGL ES.
+     */
+    EGL = 1,
+    /**
+     * Buffers shall be queued after being filled using the CPU.
+     */
+    CPU = 2,
+    /**
+     * Buffers shall be queued by Stagefright after being filled by a video
+     * decoder. The video decoder can either be a software or hardware decoder.
+     */
+    MEDIA = 3,
+    /**
+     * Buffers shall be queued by the camera HAL.
+     */
+    CAMERA = 4,
+};
+
+
diff --git a/graphics/common/1.2/Android.bp b/graphics/common/1.2/Android.bp
new file mode 100644
index 0000000..b6cd865
--- /dev/null
+++ b/graphics/common/1.2/Android.bp
@@ -0,0 +1,28 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.common@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
+    srcs: [
+        "types.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+    ],
+    types: [
+        "BufferUsage",
+        "ColorMode",
+        "Dataspace",
+        "HardwareBuffer",
+        "Hdr",
+        "PixelFormat",
+    ],
+    gen_java: true,
+    gen_java_constants: true,
+}
+
diff --git a/graphics/common/1.2/types.hal b/graphics/common/1.2/types.hal
new file mode 100644
index 0000000..ebea1dc
--- /dev/null
+++ b/graphics/common/1.2/types.hal
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.common@1.2;
+
+import @1.0::Hdr;
+import @1.1::BufferUsage;
+import @1.1::ColorMode;
+import @1.1::Dataspace;
+import @1.1::PixelFormat;
+
+/**
+ * Hdr
+ */
+@export(name="android_hdr_v1_2_t", value_prefix="HAL_HDR_",
+        export_parent="false")
+enum Hdr : @1.0::Hdr {
+    HDR10_PLUS = 4,
+};
+
+@export(name="android_dataspace_v1_2_t", value_prefix="HAL_DATASPACE_",
+        export_parent="false")
+enum Dataspace : @1.1::Dataspace {
+    /**
+     * ITU-R Recommendation 2020 (BT.2020)
+     *
+     * Ultra High-definition television
+     *
+     * Use full range, sRGB transfer and BT2020 standard
+     */
+    DISPLAY_BT2020 = STANDARD_BT2020 | TRANSFER_SRGB | RANGE_FULL,
+
+    /**
+     * ISO 16684-1:2011(E)
+     *
+     * Embedded depth metadata following the dynamic depth specification.
+     */
+    DYNAMIC_DEPTH = 0x1002,
+
+    /**
+     * JPEG APP segments format as specified by JEIDA spec
+     *
+     * The buffer must only contain APP1 (Application Marker) segment followed
+     * by zero or more APPn segments, as is specified by JEITA CP-3451C section 4.5.4.
+     * The APP1 segment optionally contains a thumbnail. The buffer will not
+     * contain main compressed image.
+     *
+     * This value is valid with formats:
+     *    HAL_PIXEL_FORMAT_BLOB: JPEG APP segments optionally containing thumbnail image
+     * in APP1. BLOB buffer with this dataspace is output by HAL, and used by
+     * camera framework to encode into a HEIC image.
+     */
+    JPEG_APP_SEGMENTS = 0x1003,
+
+    /**
+     * ISO/IEC 23008-12
+     *
+     * High Efficiency Image File Format (HEIF)
+     *
+     * This value is valid with formats:
+     *    HAL_PIXEL_FORMAT_BLOB: A HEIC image encoded by HEIC or HEVC encoder
+     * according to ISO/IEC 23008-12.
+     */
+    HEIF = 0x1004,
+};
+
+enum ColorMode : @1.1::ColorMode {
+    /**
+     * DISPLAY_BT2020 corresponds with display settings that implement the ITU-R
+     * Recommendation BT.2020 / Rec. 2020 for UHDTV, but specifies an SRGB
+     * transfer function.
+     *
+     * Primaries:
+     *                  x       y
+     *  green           0.170   0.797
+     *  blue            0.131   0.046
+     *  red             0.708   0.292
+     *  white (D65)     0.3127  0.3290
+     *
+     * Transfer Function is sRGB
+     */
+    DISPLAY_BT2020 = 13,
+};
+
+/**
+ * Buffer usage definitions.
+ */
+enum BufferUsage : @1.1::BufferUsage {
+    /**
+     * Buffer is used as input for HEIC encoder.
+     */
+    HW_IMAGE_ENCODER = 1ULL << 27,
+
+    /* bits 28 and 32-47 must be zero and are reserved for future versions */
+};
+
+/**
+ * HIDL counterpart of `AHardwareBuffer_Desc`.
+ *
+ * An `AHardwareBuffer_Desc` object can be converted to and from a
+ * `HardwareBufferDescription` object by `memcpy()`.
+ *
+ * @sa +ndk libnativewindow#AHardwareBuffer_Desc.
+ */
+typedef uint32_t[10] HardwareBufferDescription;
+
+/**
+ * HIDL counterpart of `AHardwareBuffer`.
+ *
+ * AHardwareBuffer_createFromHandle() can be used to convert a `HardwareBuffer`
+ * object to an `AHardwareBuffer` object.
+ *
+ * Conversely, AHardwareBuffer_getNativeHandle() can be used to extract a native
+ * handle from an `AHardwareBuffer` object. Paired with `AHardwareBuffer_Desc`,
+ * AHardwareBuffer_getNativeHandle() can be used to convert between
+ * `HardwareBuffer` and `AHardwareBuffer`.
+ *
+ * @sa +ndk libnativewindow#AHardwareBuffer".
+ */
+struct HardwareBuffer {
+    HardwareBufferDescription description;
+    handle nativeHandle;
+};
+
+/**
+ * HIDL counterpart of `ARect`.
+ *
+ * @sa +ndk libarect_headers#ARect.
+ */
+typedef int32_t[4] Rect;
+
+/**
+ * Pixel formats for graphics buffers.
+ */
+@export(name="android_pixel_format_v1_2_t", value_prefix="HAL_PIXEL_FORMAT_",
+        export_parent="false")
+enum PixelFormat : @1.1::PixelFormat {
+    /**
+     * 24-bit format that has 8-bit H, S, and V components, in that order,
+     * from the lowest memory address to the highest memory address.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+    */
+    HSV_888 = 0x37,
+};
diff --git a/graphics/composer/2.1/default/Android.bp b/graphics/composer/2.1/default/Android.bp
index 2de1e3c..63accff 100644
--- a/graphics/composer/2.1/default/Android.bp
+++ b/graphics/composer/2.1/default/Android.bp
@@ -10,6 +10,7 @@
     shared_libs: [
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@3.0",
         "libbase",
         "libcutils",
         "libfmq",
diff --git a/graphics/composer/2.1/utils/command-buffer/include/composer-command-buffer/2.1/ComposerCommandBuffer.h b/graphics/composer/2.1/utils/command-buffer/include/composer-command-buffer/2.1/ComposerCommandBuffer.h
index 2742207..ebac2e0 100644
--- a/graphics/composer/2.1/utils/command-buffer/include/composer-command-buffer/2.1/ComposerCommandBuffer.h
+++ b/graphics/composer/2.1/utils/command-buffer/include/composer-command-buffer/2.1/ComposerCommandBuffer.h
@@ -534,6 +534,9 @@
 
     static constexpr uint16_t kMaxLength = std::numeric_limits<uint16_t>::max();
 
+    std::unique_ptr<uint32_t[]> mData;
+    uint32_t mDataWritten;
+
    private:
     void growData(uint32_t grow) {
         uint32_t newWritten = mDataWritten + grow;
@@ -558,9 +561,6 @@
     }
 
     uint32_t mDataMaxSize;
-    std::unique_ptr<uint32_t[]> mData;
-
-    uint32_t mDataWritten;
     // end offset of the current command
     uint32_t mCommandEnd;
 
@@ -746,13 +746,14 @@
         return fd;
     }
 
+    std::unique_ptr<uint32_t[]> mData;
+    uint32_t mDataRead;
+
    private:
     std::unique_ptr<CommandQueueType> mQueue;
     uint32_t mDataMaxSize;
-    std::unique_ptr<uint32_t[]> mData;
 
     uint32_t mDataSize;
-    uint32_t mDataRead;
 
     // begin/end offsets of the current command
     uint32_t mCommandBegin;
diff --git a/graphics/composer/2.1/utils/hal/Android.bp b/graphics/composer/2.1/utils/hal/Android.bp
index f24e768..7a501fc 100644
--- a/graphics/composer/2.1/utils/hal/Android.bp
+++ b/graphics/composer/2.1/utils/hal/Android.bp
@@ -20,11 +20,13 @@
     shared_libs: [
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@3.0",
         "libhardware", // TODO remove hwcomposer2.h dependency
     ],
     export_shared_lib_headers: [
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@3.0",
         "libhardware",
     ],
     header_libs: [
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
index 2cbf044..3a73f84 100644
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
@@ -26,6 +26,7 @@
 #include <vector>
 
 #include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <android/hardware/graphics/mapper/3.0/IMapper.h>
 #include <log/log.h>
 
 namespace android {
@@ -39,9 +40,16 @@
 class ComposerHandleImporter {
    public:
     bool init() {
-        mMapper = mapper::V2_0::IMapper::getService();
-        ALOGE_IF(!mMapper, "failed to get mapper service");
-        return mMapper != nullptr;
+        mMapper3 = mapper::V3_0::IMapper::getService();
+        if (mMapper3) {
+            return true;
+        }
+        ALOGW_IF(!mMapper3, "failed to get mapper 3.0 service");
+
+        mMapper2 = mapper::V2_0::IMapper::getService();
+        ALOGE_IF(!mMapper2, "failed to get mapper 2.0 service");
+
+        return mMapper2 != nullptr;
     }
 
     Error importBuffer(const native_handle_t* rawHandle, const native_handle_t** outBufferHandle) {
@@ -50,14 +58,28 @@
             return Error::NONE;
         }
 
-        mapper::V2_0::Error error;
         const native_handle_t* bufferHandle;
-        mMapper->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
-            error = tmpError;
-            bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
-        });
-        if (error != mapper::V2_0::Error::NONE) {
-            return Error::NO_RESOURCES;
+        if (mMapper2) {
+            mapper::V2_0::Error error;
+            mMapper2->importBuffer(
+                rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
+                    error = tmpError;
+                    bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
+                });
+            if (error != mapper::V2_0::Error::NONE) {
+                return Error::NO_RESOURCES;
+            }
+        }
+        if (mMapper3) {
+            mapper::V3_0::Error error;
+            mMapper3->importBuffer(
+                rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
+                    error = tmpError;
+                    bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
+                });
+            if (error != mapper::V3_0::Error::NONE) {
+                return Error::NO_RESOURCES;
+            }
         }
 
         *outBufferHandle = bufferHandle;
@@ -66,7 +88,13 @@
 
     void freeBuffer(const native_handle_t* bufferHandle) {
         if (bufferHandle) {
-            mMapper->freeBuffer(static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
+            if (mMapper2) {
+                mMapper2->freeBuffer(
+                    static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
+            } else if (mMapper3) {
+                mMapper3->freeBuffer(
+                    static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
+            }
         }
     }
 
@@ -91,7 +119,8 @@
     }
 
    private:
-    sp<mapper::V2_0::IMapper> mMapper;
+    sp<mapper::V2_0::IMapper> mMapper2;
+    sp<mapper::V3_0::IMapper> mMapper3;
 };
 
 class ComposerHandleCache {
@@ -186,6 +215,8 @@
         : mBufferCache(importer, ComposerHandleCache::HandleType::BUFFER, bufferCacheSize),
           mSidebandStreamCache(importer, ComposerHandleCache::HandleType::STREAM, 1) {}
 
+    virtual ~ComposerLayerResource() = default;
+
     Error getBuffer(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
                     const native_handle_t** outHandle, const native_handle** outReplacedHandle) {
         return mBufferCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
@@ -211,6 +242,8 @@
         VIRTUAL,
     };
 
+    virtual ~ComposerDisplayResource() = default;
+
     ComposerDisplayResource(DisplayType type, ComposerHandleImporter& importer,
                             uint32_t outputBufferCacheSize)
         : mType(type),
diff --git a/graphics/composer/2.1/utils/vts/ComposerVts.cpp b/graphics/composer/2.1/utils/vts/ComposerVts.cpp
index 6e668af..7ba67d4 100644
--- a/graphics/composer/2.1/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.1/utils/vts/ComposerVts.cpp
@@ -25,21 +25,19 @@
 namespace V2_1 {
 namespace vts {
 
-Composer::Composer() {
-    mComposer = ::testing::VtsHalHidlTargetTestBase::getService<IComposer>();
-    init();
-}
+Composer::Composer() : Composer(::testing::VtsHalHidlTargetTestBase::getService<IComposer>()) {}
 
-Composer::Composer(const std::string& name) {
-    mComposer = ::testing::VtsHalHidlTargetTestBase::getService<IComposer>(name);
-    init();
-}
+Composer::Composer(const std::string& name)
+    : Composer(::testing::VtsHalHidlTargetTestBase::getService<IComposer>(name)) {}
 
-void Composer::init() {
-    ASSERT_NE(nullptr, mComposer.get()) << "failed to get composer service";
+Composer::Composer(const sp<IComposer>& composer) : mComposer(composer) {
+    // ASSERT_* can only be used in functions returning void.
+    [this] {
+        ASSERT_NE(nullptr, mComposer.get()) << "failed to get composer service";
 
-    std::vector<IComposer::Capability> capabilities = getCapabilities();
-    mCapabilities.insert(capabilities.begin(), capabilities.end());
+        std::vector<IComposer::Capability> capabilities = getCapabilities();
+        mCapabilities.insert(capabilities.begin(), capabilities.end());
+    }();
 }
 
 sp<IComposer> Composer::getRaw() const {
@@ -295,7 +293,6 @@
     if (queueChanged) {
         auto ret = mClient->setInputCommandQueue(*writer->getMQDescriptor());
         ASSERT_EQ(Error::NONE, static_cast<Error>(ret));
-        return;
     }
 
     mClient->executeCommands(commandLength, commandHandles,
@@ -314,6 +311,8 @@
                                  ASSERT_TRUE(reader->readQueue(tmpOutLength, tmpOutHandles));
                                  reader->parse();
                              });
+    reader->reset();
+    writer->reset();
 }
 
 }  // namespace vts
diff --git a/graphics/composer/2.1/utils/vts/TestCommandReader.cpp b/graphics/composer/2.1/utils/vts/TestCommandReader.cpp
index 6f8f1ad..454a89c 100644
--- a/graphics/composer/2.1/utils/vts/TestCommandReader.cpp
+++ b/graphics/composer/2.1/utils/vts/TestCommandReader.cpp
@@ -26,23 +26,55 @@
 namespace vts {
 
 void TestCommandReader::parse() {
+    mErrors.clear();
+    mCompositionChanges.clear();
     while (!isEmpty()) {
         IComposerClient::Command command;
         uint16_t length;
         ASSERT_TRUE(beginCommand(&command, &length));
 
         switch (command) {
+            case IComposerClient::Command::SELECT_DISPLAY:
+                ASSERT_EQ(2, length);
+                read64();  // display
+                break;
             case IComposerClient::Command::SET_ERROR: {
                 ASSERT_EQ(2, length);
                 auto loc = read();
                 auto err = readSigned();
-                GTEST_FAIL() << "unexpected error " << err << " at location " << loc;
+                std::pair<uint32_t, uint32_t> error(loc, err);
+                mErrors.push_back(error);
             } break;
-            case IComposerClient::Command::SELECT_DISPLAY:
             case IComposerClient::Command::SET_CHANGED_COMPOSITION_TYPES:
+                ASSERT_EQ(0, length % 3);
+                for (uint16_t count = 0; count < length / 3; ++count) {
+                    uint64_t layerId = read64();
+                    uint32_t composition = read();
+
+                    std::pair<uint64_t, uint32_t> compositionChange(layerId, composition);
+                    mCompositionChanges.push_back(compositionChange);
+                }
+                break;
             case IComposerClient::Command::SET_DISPLAY_REQUESTS:
+                ASSERT_EQ(1, length % 3);
+                read();  // displayRequests, ignored for now
+                for (uint16_t count = 0; count < (length - 1) / 3; ++count) {
+                    read64();  // layer
+                    // silently eat requests to clear the client target, since we won't be testing
+                    // client composition anyway
+                    ASSERT_EQ(1u, read());
+                }
+                break;
             case IComposerClient::Command::SET_PRESENT_FENCE:
+                ASSERT_EQ(1, length);
+                close(readFence());
+                break;
             case IComposerClient::Command::SET_RELEASE_FENCES:
+                ASSERT_EQ(0, length % 3);
+                for (uint16_t count = 0; count < length / 3; ++count) {
+                    read64();
+                    close(readFence());
+                }
                 break;
             default:
                 GTEST_FAIL() << "unexpected return command " << std::hex
diff --git a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
index 8d5493e..c97be76 100644
--- a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
+++ b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
@@ -57,10 +57,10 @@
     std::unique_ptr<ComposerClient> createClient();
 
    protected:
-    sp<IComposer> mComposer;
+    explicit Composer(const sp<IComposer>& composer);
 
    private:
-    void init();
+    const sp<IComposer> mComposer;
 
     std::unordered_set<IComposer::Capability> mCapabilities;
 };
@@ -68,7 +68,7 @@
 // A wrapper to IComposerClient.
 class ComposerClient {
    public:
-    ComposerClient(const sp<IComposerClient>& client);
+    explicit ComposerClient(const sp<IComposerClient>& client);
     ~ComposerClient();
 
     sp<IComposerClient> getRaw() const;
@@ -116,7 +116,7 @@
     std::unordered_map<Display, DisplayResource> mDisplayResources;
 
    private:
-    sp<IComposerClient> mClient;
+    const sp<IComposerClient> mClient;
 };
 
 }  // namespace vts
diff --git a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/TestCommandReader.h b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/TestCommandReader.h
index 3888eeb..c12debe 100644
--- a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/TestCommandReader.h
+++ b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/TestCommandReader.h
@@ -32,6 +32,9 @@
     // Parse all commands in the return command queue.  Call GTEST_FAIL() for
     // unexpected errors or commands.
     void parse();
+
+    std::vector<std::pair<uint32_t, uint32_t>> mErrors;
+    std::vector<std::pair<uint64_t, uint32_t>> mCompositionChanges;
 };
 
 }  // namespace vts
diff --git a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
index 72f3f1b..4018aea 100644
--- a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
+++ b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
@@ -71,6 +71,7 @@
 class GraphicsComposerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    protected:
     void SetUp() override {
+        VtsHalHidlTargetTestBase::SetUp();
         ASSERT_NO_FATAL_FAILURE(
             mComposer = std::make_unique<Composer>(
                 GraphicsComposerHidlEnvironment::Instance()->getServiceName<IComposer>()));
@@ -85,6 +86,13 @@
         // explicitly disable vsync
         mComposerClient->setVsyncEnabled(mPrimaryDisplay, false);
         mComposerCallback->setVsyncAllowed(false);
+
+        mInvalidDisplayId = GetInvalidDisplayId();
+
+        // Although 0 could be an invalid display, a return value of 0
+        // from GetInvalidDisplayId means all other ids are in use, a condition which
+        // we are assuming a device will never have
+        ASSERT_NE(0, mInvalidDisplayId);
     }
 
     void TearDown() override {
@@ -93,6 +101,24 @@
             EXPECT_EQ(0, mComposerCallback->getInvalidRefreshCount());
             EXPECT_EQ(0, mComposerCallback->getInvalidVsyncCount());
         }
+        VtsHalHidlTargetTestBase::TearDown();
+    }
+
+    // returns an invalid display id (one that has not been registered to a
+    // display.  Currently assuming that a device will never have close to
+    // std::numeric_limit<uint64_t>::max() displays registered while running tests
+    Display GetInvalidDisplayId() {
+        std::vector<Display> validDisplays = mComposerCallback->getDisplays();
+
+        uint64_t id = std::numeric_limits<uint64_t>::max();
+        while (id > 0) {
+            if (std::find(validDisplays.begin(), validDisplays.end(), id) == validDisplays.end()) {
+                return id;
+            }
+            id--;
+        }
+
+        return 0;
     }
 
     // use the slot count usually set by SF
@@ -103,6 +129,7 @@
     sp<GraphicsComposerCallback> mComposerCallback;
     // the first display and is assumed never to be removed
     Display mPrimaryDisplay;
+    Display mInvalidDisplayId;
 
    private:
     Display waitForFirstDisplay() {
@@ -172,6 +199,22 @@
 }
 
 /**
+ * Test IComposerClient::destroyVirtualDisplay
+ *
+ * Test that passing a bad display handle to destroyVirtualDisplay
+ * returns a BAD_DISPLAY error
+ */
+TEST_F(GraphicsComposerHidlTest, DestroyVirtualDisplayBadDisplay) {
+    if (mComposerClient->getMaxVirtualDisplayCount() == 0) {
+        GTEST_SUCCEED() << "no virtual display support";
+        return;
+    }
+
+    Error error = mComposerClient->getRaw()->destroyVirtualDisplay(mInvalidDisplayId);
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
  * Test IComposerClient::createLayer and IComposerClient::destroyLayer.
  *
  * Test that layers can be created and destroyed.
@@ -185,6 +228,89 @@
 }
 
 /**
+ * Test IComposerClient::createLayer
+ *
+ * Test that passing in an invalid display handle to createLayer returns
+ * BAD_DISPLAY.
+ */
+TEST_F(GraphicsComposerHidlTest, CreateLayerBadDisplay) {
+    Error error;
+    mComposerClient->getRaw()->createLayer(
+        mInvalidDisplayId, kBufferSlotCount,
+        [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
+ * Test IComposerClient::destroyLayer
+ *
+ * Test that passing in an invalid display handle to destroyLayer returns
+ * BAD_DISPLAY
+ */
+TEST_F(GraphicsComposerHidlTest, DestroyLayerBadDisplay) {
+    Error error;
+    Layer layer;
+    ASSERT_NO_FATAL_FAILURE(layer =
+                                mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
+
+    error = mComposerClient->getRaw()->destroyLayer(mInvalidDisplayId, layer);
+
+    EXPECT_EQ(Error::BAD_DISPLAY, error);
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->destroyLayer(mPrimaryDisplay, layer));
+}
+
+/**
+ * Test IComposerClient::destroyLayer
+ *
+ * Test that passing in an invalid layer handle to destroyLayer returns
+ * BAD_LAYER
+ */
+TEST_F(GraphicsComposerHidlTest, DestroyLayerBadLayerError) {
+    // We haven't created any layers yet, so any id should be invalid
+    Error error = mComposerClient->getRaw()->destroyLayer(mPrimaryDisplay, 1);
+
+    EXPECT_EQ(Error::BAD_LAYER, error);
+}
+
+/**
+ * Test IComposerClient::getActiveConfig
+ *
+ * Test that passing in a bad display handle to getActiveConfig generates a
+ * BAD_DISPLAY error
+ */
+TEST_F(GraphicsComposerHidlTest, GetActiveConfigBadDisplay) {
+    Error error;
+    mComposerClient->getRaw()->getActiveConfig(
+        mInvalidDisplayId, [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
+ * Test IComposerClient::getDisplayConfigs
+ *
+ * Test IComposerClient::getDisplayConfigs returns no error
+ * when passed in a valid display
+ */
+TEST_F(GraphicsComposerHidlTest, GetDisplayConfig) {
+    std::vector<Config> configs;
+    ASSERT_NO_FATAL_FAILURE(configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay));
+}
+
+/**
+ * Test IComposerClient::getDisplayConfigs
+ *
+ * Test IComposerClient::getDisplayConfigs returns BAD_DISPLAY
+ * when passed in an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetDisplayConfigBadDisplay) {
+    Error error;
+    mComposerClient->getRaw()->getDisplayConfigs(
+        mInvalidDisplayId, [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
  * Test IComposerClient::getDisplayName.
  */
 TEST_F(GraphicsComposerHidlTest, GetDisplayName) {
@@ -226,6 +352,30 @@
 }
 
 /**
+ * Test IComposerClient::getClientTargetSupport
+ *
+ * Test that IComposerClient::getClientTargetSupport returns BAD_DISPLAY when
+ * passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetClientTargetSupportBadDisplay) {
+    std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        int32_t height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+        ASSERT_LT(0, width);
+        ASSERT_LT(0, height);
+
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+
+        Error error = mComposerClient->getRaw()->getClientTargetSupport(
+            mInvalidDisplayId, width, height, PixelFormat::RGBA_8888, Dataspace::UNKNOWN);
+        EXPECT_EQ(Error::BAD_DISPLAY, error);
+    }
+}
+
+/**
  * Test IComposerClient::getDisplayAttribute.
  *
  * Test that IComposerClient::getDisplayAttribute succeeds for the required
@@ -287,6 +437,43 @@
 }
 
 /**
+ * Test IComposerClient::setActiveConfig
+ *
+ * Test that config set during IComposerClient::setActiveConfig is maintained
+ * during a display on/off power cycle
+ */
+TEST_F(GraphicsComposerHidlTest, SetActiveConfigPowerCycle) {
+    ASSERT_NO_FATAL_FAILURE(
+        mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::OFF));
+    ASSERT_NO_FATAL_FAILURE(
+        mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::ON));
+
+    std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+        ASSERT_EQ(config, mComposerClient->getActiveConfig(mPrimaryDisplay));
+
+        ASSERT_NO_FATAL_FAILURE(
+            mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::OFF));
+        ASSERT_NO_FATAL_FAILURE(
+            mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::ON));
+        ASSERT_EQ(config, mComposerClient->getActiveConfig(mPrimaryDisplay));
+    }
+}
+
+/**
+ * Test IComposerClient::getColorMode
+ *
+ * Test that IComposerClient::getColorMode always returns ColorMode::NATIVE
+ */
+TEST_F(GraphicsComposerHidlTest, GetColorModes) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes(mPrimaryDisplay);
+    auto nativeModeLocation = std::find(modes.begin(), modes.end(), ColorMode::NATIVE);
+
+    ASSERT_NE(modes.end(), nativeModeLocation);
+}
+
+/**
  * Test IComposerClient::setColorMode.
  *
  * Test that IComposerClient::setColorMode succeeds for all color modes.
@@ -306,6 +493,45 @@
 }
 
 /**
+ * Test IComposerClient::setColorMode
+ *
+ * Test that IComposerClient::setColorMode returns BAD_DISPLAY for
+ * an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorModeBadDisplay) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes(mPrimaryDisplay);
+    for (auto mode : modes) {
+        Error error = mComposerClient->getRaw()->setColorMode(mInvalidDisplayId, mode);
+        EXPECT_EQ(Error::BAD_DISPLAY, error);
+    }
+}
+
+/**
+ * Test IComposerClient::setColorMode
+ *
+ * Test that IComposerClient::setColorMode returns BAD_PARAMETER when passed in
+ * an invalid color mode
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorModeBadParameter) {
+    Error error =
+        mComposerClient->getRaw()->setColorMode(mPrimaryDisplay, static_cast<ColorMode>(-1));
+    ASSERT_EQ(Error::BAD_PARAMETER, error);
+}
+
+/**
+ * Test IComposerClient::getDozeSupport
+ *
+ * Test that IComposerClient::getDozeSupport returns
+ * BAD_DISPLAY when passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetDozeSupportBadDisplay) {
+    Error error;
+    mComposerClient->getRaw()->getDozeSupport(
+        mInvalidDisplayId, [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
  * Test IComposerClient::setPowerMode.
  *
  * Test that IComposerClient::setPowerMode succeeds for all power modes.
@@ -328,6 +554,99 @@
 }
 
 /**
+ * Test IComposerClient::setPowerMode
+ *
+ * Test IComposerClient::setPowerMode succeeds with different
+ * orderings of power modes
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerModeVariations) {
+    std::vector<IComposerClient::PowerMode> modes;
+    modes.push_back(IComposerClient::PowerMode::OFF);
+    modes.push_back(IComposerClient::PowerMode::ON);
+    modes.push_back(IComposerClient::PowerMode::OFF);
+    for (auto mode : modes) {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, mode));
+    }
+
+    modes.clear();
+
+    modes.push_back(IComposerClient::PowerMode::OFF);
+    modes.push_back(IComposerClient::PowerMode::OFF);
+    for (auto mode : modes) {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, mode));
+    }
+
+    modes.clear();
+    if (mComposerClient->getDozeSupport(mPrimaryDisplay)) {
+        modes.push_back(IComposerClient::PowerMode::DOZE);
+        modes.push_back(IComposerClient::PowerMode::DOZE);
+
+        for (auto mode : modes) {
+            ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, mode));
+        }
+
+        modes.clear();
+
+        modes.push_back(IComposerClient::PowerMode::DOZE_SUSPEND);
+        modes.push_back(IComposerClient::PowerMode::DOZE_SUSPEND);
+
+        for (auto mode : modes) {
+            ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, mode));
+        }
+    }
+
+    modes.clear();
+
+    modes.push_back(IComposerClient::PowerMode::ON);
+    modes.push_back(IComposerClient::PowerMode::ON);
+    for (auto mode : modes) {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, mode));
+    }
+}
+
+/**
+ * Test IComposerClient::setPowerMode
+ *
+ * Test IComposerClient::setPowerMode returns BAD_DISPLAY when passed an invalid
+ * display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerModeBadDisplay) {
+    Error error =
+        mComposerClient->getRaw()->setPowerMode(mInvalidDisplayId, IComposerClient::PowerMode::ON);
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
+ * Test IComposerClient::setPowerMode
+ *
+ * Test that IComposerClient::setPowerMode returns UNSUPPORTED when passed DOZE
+ * or DOZE_SUSPEND on devices that do not support DOZE/DOZE_SUSPEND
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerModeUnsupported) {
+    if (!mComposerClient->getDozeSupport(mPrimaryDisplay)) {
+        Error error = mComposerClient->getRaw()->setPowerMode(mPrimaryDisplay,
+                                                              IComposerClient::PowerMode::DOZE);
+        EXPECT_EQ(Error::UNSUPPORTED, error);
+
+        error = mComposerClient->getRaw()->setPowerMode(mPrimaryDisplay,
+                                                        IComposerClient::PowerMode::DOZE_SUSPEND);
+        EXPECT_EQ(Error::UNSUPPORTED, error);
+    }
+}
+
+/**
+ * Test IComposerClient::setPowerMode
+ *
+ * Tests that IComposerClient::setPowerMode returns BAD_PARAMETER when passed an invalid
+ * PowerMode
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerModeBadParameter) {
+    Error error = mComposerClient->getRaw()->setPowerMode(
+        mPrimaryDisplay, static_cast<IComposerClient::PowerMode>(-1));
+    ASSERT_EQ(Error::BAD_PARAMETER, error);
+}
+
+/**
  * Test IComposerClient::setVsyncEnabled.
  *
  * Test that IComposerClient::setVsyncEnabled succeeds and there is no
@@ -351,20 +670,29 @@
 
         ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>());
 
+        Config activeConfig = mComposerClient->getActiveConfig(mPrimaryDisplay);
+        mDisplayWidth = mComposerClient->getDisplayAttribute(mPrimaryDisplay, activeConfig,
+                                                             IComposerClient::Attribute::WIDTH);
+        mDisplayHeight = mComposerClient->getDisplayAttribute(mPrimaryDisplay, activeConfig,
+                                                              IComposerClient::Attribute::HEIGHT);
         mWriter = std::make_unique<CommandWriterBase>(1024);
         mReader = std::make_unique<TestCommandReader>();
     }
 
-    void TearDown() override { ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::TearDown()); }
+    void TearDown() override {
+        ASSERT_EQ(0, mReader->mErrors.size());
+        ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::TearDown());
+    }
 
     const native_handle_t* allocate() {
         IMapper::BufferDescriptorInfo info{};
-        info.width = 64;
-        info.height = 64;
+        info.width = mDisplayWidth;
+        info.height = mDisplayHeight;
         info.layerCount = 1;
         info.format = PixelFormat::RGBA_8888;
         info.usage =
-            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN |
+                                  BufferUsage::COMPOSER_OVERLAY);
 
         return mGralloc->allocate(info);
     }
@@ -373,6 +701,8 @@
 
     std::unique_ptr<CommandWriterBase> mWriter;
     std::unique_ptr<TestCommandReader> mReader;
+    int32_t mDisplayWidth;
+    int32_t mDisplayHeight;
 
    private:
     std::unique_ptr<Gralloc> mGralloc;
@@ -459,6 +789,60 @@
 }
 
 /**
+ * Test IComposerClient::Command::PRESENT_DISPLAY
+ *
+ * Test that IComposerClient::Command::PRESENT_DISPLAY works without
+ * additional call to validateDisplay when only the layer buffer handle and
+ * surface damage have been set
+ */
+TEST_F(GraphicsComposerHidlCommandTest, PRESENT_DISPLAY_NO_LAYER_STATE_CHANGES) {
+    mWriter->selectDisplay(mPrimaryDisplay);
+    mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::ON);
+    mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB);
+
+    auto handle = allocate();
+    ASSERT_NE(nullptr, handle);
+
+    IComposerClient::Rect displayFrame{0, 0, mDisplayWidth, mDisplayHeight};
+
+    Layer layer;
+    ASSERT_NO_FATAL_FAILURE(layer =
+                                mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
+    mWriter->selectLayer(layer);
+    mWriter->setLayerCompositionType(IComposerClient::Composition::DEVICE);
+    mWriter->setLayerDisplayFrame(displayFrame);
+    mWriter->setLayerPlaneAlpha(1);
+    mWriter->setLayerSourceCrop({0, 0, (float)mDisplayWidth, (float)mDisplayHeight});
+    mWriter->setLayerTransform(static_cast<Transform>(0));
+    mWriter->setLayerVisibleRegion(std::vector<IComposerClient::Rect>(1, displayFrame));
+    mWriter->setLayerZOrder(10);
+    mWriter->setLayerBlendMode(IComposerClient::BlendMode::NONE);
+    mWriter->setLayerSurfaceDamage(std::vector<IComposerClient::Rect>(1, displayFrame));
+    mWriter->setLayerBuffer(0, handle, -1);
+    mWriter->setLayerDataspace(Dataspace::UNKNOWN);
+
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        GTEST_SUCCEED() << "Composition change requested, skipping test";
+        return;
+    }
+
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    mWriter->selectLayer(layer);
+    auto handle2 = allocate();
+    ASSERT_NE(nullptr, handle2);
+    mWriter->setLayerBuffer(0, handle2, -1);
+    mWriter->setLayerSurfaceDamage(std::vector<IComposerClient::Rect>(1, {0, 0, 10, 10}));
+    mWriter->presentDisplay();
+    execute();
+}
+
+/**
  * Test IComposerClient::Command::SET_LAYER_CURSOR_POSITION.
  */
 TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_CURSOR_POSITION) {
diff --git a/graphics/composer/2.2/default/Android.mk b/graphics/composer/2.2/default/Android.mk
index 2f80f0c..7dedf61 100644
--- a/graphics/composer/2.2/default/Android.mk
+++ b/graphics/composer/2.2/default/Android.mk
@@ -12,6 +12,7 @@
         android.hardware.graphics.composer@2.1 \
         android.hardware.graphics.composer@2.2 \
         android.hardware.graphics.mapper@2.0 \
+        android.hardware.graphics.mapper@3.0 \
         libbase \
         libbinder \
         libcutils \
diff --git a/graphics/composer/2.2/utils/hal/include/composer-hal/2.2/ComposerClient.h b/graphics/composer/2.2/utils/hal/include/composer-hal/2.2/ComposerClient.h
index a6871fb..c760d0a 100644
--- a/graphics/composer/2.2/utils/hal/include/composer-hal/2.2/ComposerClient.h
+++ b/graphics/composer/2.2/utils/hal/include/composer-hal/2.2/ComposerClient.h
@@ -132,24 +132,13 @@
 
     Return<void> getRenderIntents(Display display, ColorMode mode,
                                   IComposerClient::getRenderIntents_cb hidl_cb) override {
-#ifdef USES_DISPLAY_RENDER_INTENTS
         std::vector<RenderIntent> intents;
         Error err = mHal->getRenderIntents(display, mode, &intents);
         hidl_cb(err, intents);
-#else
-        (void)display;
-        (void)mode;
-        hidl_cb(Error::NONE, hidl_vec<RenderIntent>({RenderIntent::COLORIMETRIC}));
-#endif
         return Void();
     }
 
     Return<Error> setColorMode_2_2(Display display, ColorMode mode, RenderIntent intent) override {
-#ifndef USES_DISPLAY_RENDER_INTENTS
-        if (intent != RenderIntent::COLORIMETRIC) {
-            return Error::BAD_PARAMETER;
-        }
-#endif
         return mHal->setColorMode_2_2(display, mode, intent);
     }
 
diff --git a/graphics/composer/2.2/utils/vts/ComposerVts.cpp b/graphics/composer/2.2/utils/vts/ComposerVts.cpp
index 6a32071..da99460 100644
--- a/graphics/composer/2.2/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.2/utils/vts/ComposerVts.cpp
@@ -27,32 +27,31 @@
 namespace V2_2 {
 namespace vts {
 
-using android::hardware::details::canCastInterface;
-using android::hardware::details::getDescriptor;
-using android::hardware::graphics::composer::V2_2::IComposerClient;
+using details::canCastInterface;
+using details::getDescriptor;
 
-std::unique_ptr<ComposerClient_v2_2> Composer_v2_2::createClient_v2_2() {
-    std::unique_ptr<ComposerClient_v2_2> client;
-    mComposer->createClient([&](const auto& tmpError, const auto& tmpClient) {
+std::unique_ptr<ComposerClient> Composer::createClient() {
+    std::unique_ptr<ComposerClient> client;
+    getRaw()->createClient([&](const auto& tmpError, const auto& tmpClient) {
         ASSERT_EQ(Error::NONE, tmpError) << "failed to create client";
         ALOGV("tmpClient is a %s", getDescriptor(&(*tmpClient)).c_str());
         ASSERT_TRUE(canCastInterface(
             &(*tmpClient), "android.hardware.graphics.composer@2.2::IComposerClient", false))
             << "Cannot create 2.2 IComposerClient";
-        client = std::make_unique<ComposerClient_v2_2>(IComposerClient::castFrom(tmpClient, true));
+        client = std::make_unique<ComposerClient>(IComposerClient::castFrom(tmpClient, true));
     });
 
     return client;
 }
 
-sp<V2_2::IComposerClient> ComposerClient_v2_2::getRaw() const {
-    return mClient_v2_2;
+sp<IComposerClient> ComposerClient::getRaw() const {
+    return mClient;
 }
 
-std::vector<IComposerClient::PerFrameMetadataKey> ComposerClient_v2_2::getPerFrameMetadataKeys(
+std::vector<IComposerClient::PerFrameMetadataKey> ComposerClient::getPerFrameMetadataKeys(
     Display display) {
     std::vector<IComposerClient::PerFrameMetadataKey> keys;
-    mClient_v2_2->getPerFrameMetadataKeys(display, [&](const auto& tmpError, const auto& tmpKeys) {
+    mClient->getPerFrameMetadataKeys(display, [&](const auto& tmpError, const auto& tmpKeys) {
         ASSERT_EQ(Error::NONE, tmpError) << "failed to get HDR metadata keys";
         keys = tmpKeys;
     });
@@ -60,43 +59,43 @@
     return keys;
 }
 
-void ComposerClient_v2_2::execute_v2_2(V2_1::vts::TestCommandReader* reader,
-                                       V2_2::CommandWriterBase* writer) {
+void ComposerClient::execute(V2_1::vts::TestCommandReader* reader, CommandWriterBase* writer) {
     bool queueChanged = false;
     uint32_t commandLength = 0;
     hidl_vec<hidl_handle> commandHandles;
     ASSERT_TRUE(writer->writeQueue(&queueChanged, &commandLength, &commandHandles));
 
     if (queueChanged) {
-        auto ret = mClient_v2_2->setInputCommandQueue(*writer->getMQDescriptor());
+        auto ret = mClient->setInputCommandQueue(*writer->getMQDescriptor());
         ASSERT_EQ(Error::NONE, static_cast<Error>(ret));
-        return;
     }
 
-    mClient_v2_2->executeCommands(commandLength, commandHandles,
-                                  [&](const auto& tmpError, const auto& tmpOutQueueChanged,
-                                      const auto& tmpOutLength, const auto& tmpOutHandles) {
-                                      ASSERT_EQ(Error::NONE, tmpError);
+    mClient->executeCommands(commandLength, commandHandles,
+                             [&](const auto& tmpError, const auto& tmpOutQueueChanged,
+                                 const auto& tmpOutLength, const auto& tmpOutHandles) {
+                                 ASSERT_EQ(Error::NONE, tmpError);
 
-                                      if (tmpOutQueueChanged) {
-                                          mClient_v2_2->getOutputCommandQueue(
-                                              [&](const auto& tmpError, const auto& tmpDescriptor) {
-                                                  ASSERT_EQ(Error::NONE, tmpError);
-                                                  reader->setMQDescriptor(tmpDescriptor);
-                                              });
-                                      }
+                                 if (tmpOutQueueChanged) {
+                                     mClient->getOutputCommandQueue(
+                                         [&](const auto& tmpError, const auto& tmpDescriptor) {
+                                             ASSERT_EQ(Error::NONE, tmpError);
+                                             reader->setMQDescriptor(tmpDescriptor);
+                                         });
+                                 }
 
-                                      ASSERT_TRUE(reader->readQueue(tmpOutLength, tmpOutHandles));
-                                      reader->parse();
-                                  });
+                                 ASSERT_TRUE(reader->readQueue(tmpOutLength, tmpOutHandles));
+                                 reader->parse();
+                             });
+    reader->reset();
+    writer->reset();
 }
 
-Display ComposerClient_v2_2::createVirtualDisplay_2_2(uint32_t width, uint32_t height,
-                                                      PixelFormat formatHint,
-                                                      uint32_t outputBufferSlotCount,
-                                                      PixelFormat* outFormat) {
+Display ComposerClient::createVirtualDisplay_2_2(uint32_t width, uint32_t height,
+                                                 PixelFormat formatHint,
+                                                 uint32_t outputBufferSlotCount,
+                                                 PixelFormat* outFormat) {
     Display display = 0;
-    mClient_v2_2->createVirtualDisplay_2_2(
+    mClient->createVirtualDisplay_2_2(
         width, height, formatHint, outputBufferSlotCount,
         [&](const auto& tmpError, const auto& tmpDisplay, const auto& tmpFormat) {
             ASSERT_EQ(Error::NONE, tmpError) << "failed to create virtual display";
@@ -110,29 +109,27 @@
     return display;
 }
 
-bool ComposerClient_v2_2::getClientTargetSupport_2_2(Display display, uint32_t width,
-                                                     uint32_t height, PixelFormat format,
-                                                     Dataspace dataspace) {
-    Error error =
-        mClient_v2_2->getClientTargetSupport_2_2(display, width, height, format, dataspace);
+bool ComposerClient::getClientTargetSupport_2_2(Display display, uint32_t width, uint32_t height,
+                                                PixelFormat format, Dataspace dataspace) {
+    Error error = mClient->getClientTargetSupport_2_2(display, width, height, format, dataspace);
     return error == Error::NONE;
 }
 
-void ComposerClient_v2_2::setPowerMode_2_2(Display display, V2_2::IComposerClient::PowerMode mode) {
-    Error error = mClient_v2_2->setPowerMode_2_2(display, mode);
+void ComposerClient::setPowerMode_2_2(Display display, IComposerClient::PowerMode mode) {
+    Error error = mClient->setPowerMode_2_2(display, mode);
     ASSERT_TRUE(error == Error::NONE || error == Error::UNSUPPORTED) << "failed to set power mode";
 }
 
-void ComposerClient_v2_2::setReadbackBuffer(Display display, const native_handle_t* buffer,
-                                            int32_t /* releaseFence */) {
+void ComposerClient::setReadbackBuffer(Display display, const native_handle_t* buffer,
+                                       int32_t /* releaseFence */) {
     // Ignoring fence, HIDL doesn't care
-    Error error = mClient_v2_2->setReadbackBuffer(display, buffer, nullptr);
+    Error error = mClient->setReadbackBuffer(display, buffer, nullptr);
     ASSERT_EQ(Error::NONE, error) << "failed to setReadbackBuffer";
 }
 
-void ComposerClient_v2_2::getReadbackBufferAttributes(Display display, PixelFormat* outPixelFormat,
-                                                      Dataspace* outDataspace) {
-    mClient_v2_2->getReadbackBufferAttributes(
+void ComposerClient::getReadbackBufferAttributes(Display display, PixelFormat* outPixelFormat,
+                                                 Dataspace* outDataspace) {
+    mClient->getReadbackBufferAttributes(
         display,
         [&](const auto& tmpError, const auto& tmpOutPixelFormat, const auto& tmpOutDataspace) {
             ASSERT_EQ(Error::NONE, tmpError) << "failed to get readback buffer attributes";
@@ -141,42 +138,40 @@
         });
 }
 
-void ComposerClient_v2_2::getReadbackBufferFence(Display display, int32_t* outFence) {
-    hidl_handle handle;
-    mClient_v2_2->getReadbackBufferFence(display, [&](const auto& tmpError, const auto& tmpHandle) {
+void ComposerClient::getReadbackBufferFence(Display display, int32_t* outFence) {
+    mClient->getReadbackBufferFence(display, [&](const auto& tmpError, const auto& tmpHandle) {
         ASSERT_EQ(Error::NONE, tmpError) << "failed to get readback fence";
-        handle = tmpHandle;
+        const native_handle_t* nativeFenceHandle = tmpHandle.getNativeHandle();
+        *outFence = dup(nativeFenceHandle->data[0]);
     });
-    *outFence = 0;
 }
 
-std::vector<ColorMode> ComposerClient_v2_2::getColorModes(Display display) {
+std::vector<ColorMode> ComposerClient::getColorModes(Display display) {
     std::vector<ColorMode> modes;
-    mClient_v2_2->getColorModes_2_2(display, [&](const auto& tmpError, const auto& tmpModes) {
+    mClient->getColorModes_2_2(display, [&](const auto& tmpError, const auto& tmpModes) {
         ASSERT_EQ(Error::NONE, tmpError) << "failed to get color modes";
         modes = tmpModes;
     });
     return modes;
 }
 
-std::vector<RenderIntent> ComposerClient_v2_2::getRenderIntents(Display display, ColorMode mode) {
+std::vector<RenderIntent> ComposerClient::getRenderIntents(Display display, ColorMode mode) {
     std::vector<RenderIntent> intents;
-    mClient_v2_2->getRenderIntents(
-        display, mode, [&](const auto& tmpError, const auto& tmpIntents) {
-            ASSERT_EQ(Error::NONE, tmpError) << "failed to get render intents";
-            intents = tmpIntents;
-        });
+    mClient->getRenderIntents(display, mode, [&](const auto& tmpError, const auto& tmpIntents) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to get render intents";
+        intents = tmpIntents;
+    });
     return intents;
 }
 
-void ComposerClient_v2_2::setColorMode(Display display, ColorMode mode, RenderIntent intent) {
-    Error error = mClient_v2_2->setColorMode_2_2(display, mode, intent);
+void ComposerClient::setColorMode(Display display, ColorMode mode, RenderIntent intent) {
+    Error error = mClient->setColorMode_2_2(display, mode, intent);
     ASSERT_TRUE(error == Error::NONE || error == Error::UNSUPPORTED) << "failed to set color mode";
 }
 
-std::array<float, 16> ComposerClient_v2_2::getDataspaceSaturationMatrix(Dataspace dataspace) {
+std::array<float, 16> ComposerClient::getDataspaceSaturationMatrix(Dataspace dataspace) {
     std::array<float, 16> matrix;
-    mClient_v2_2->getDataspaceSaturationMatrix(
+    mClient->getDataspaceSaturationMatrix(
         dataspace, [&](const auto& tmpError, const auto& tmpMatrix) {
             ASSERT_EQ(Error::NONE, tmpError) << "failed to get datasapce saturation matrix";
             std::copy_n(tmpMatrix.data(), matrix.size(), matrix.begin());
diff --git a/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h b/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h
index 1c6d7ae..2633021 100644
--- a/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h
+++ b/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h
@@ -36,36 +36,31 @@
 namespace V2_2 {
 namespace vts {
 
-using android::hardware::graphics::common::V1_0::Hdr;
-using android::hardware::graphics::common::V1_1::ColorMode;
-using android::hardware::graphics::common::V1_1::Dataspace;
-using android::hardware::graphics::common::V1_1::PixelFormat;
-using android::hardware::graphics::common::V1_1::RenderIntent;
-using android::hardware::graphics::composer::V2_2::IComposer;
-using android::hardware::graphics::composer::V2_2::IComposerClient;
+using common::V1_0::Hdr;
+using common::V1_1::ColorMode;
+using common::V1_1::Dataspace;
+using common::V1_1::PixelFormat;
+using common::V1_1::RenderIntent;
 
-class ComposerClient_v2_2;
+class ComposerClient;
 
-// Only thing I need for Composer_v2_2 is to create a v2_2 ComposerClient
-// Everything else is the same
-class Composer_v2_2 : public V2_1::vts::Composer {
+// A wrapper to IComposer.
+class Composer : public V2_1::vts::Composer {
    public:
-    Composer_v2_2() : V2_1::vts::Composer(){};
-    explicit Composer_v2_2(const std::string& name) : V2_1::vts::Composer(name){};
+    using V2_1::vts::Composer::Composer;
 
-    std::unique_ptr<ComposerClient_v2_2> createClient_v2_2();
+    std::unique_ptr<ComposerClient> createClient();
 };
 
 // A wrapper to IComposerClient.
-class ComposerClient_v2_2
-    : public android::hardware::graphics::composer::V2_1::vts::ComposerClient {
+class ComposerClient : public V2_1::vts::ComposerClient {
    public:
-    ComposerClient_v2_2(const sp<IComposerClient>& client)
-        : V2_1::vts::ComposerClient(client), mClient_v2_2(client){};
+    explicit ComposerClient(const sp<IComposerClient>& client)
+        : V2_1::vts::ComposerClient(client), mClient(client) {}
 
-    sp<V2_2::IComposerClient> getRaw() const;
+    sp<IComposerClient> getRaw() const;
 
-    void execute_v2_2(V2_1::vts::TestCommandReader* reader, V2_2::CommandWriterBase* writer);
+    void execute(V2_1::vts::TestCommandReader* reader, CommandWriterBase* writer);
 
     std::vector<IComposerClient::PerFrameMetadataKey> getPerFrameMetadataKeys(Display display);
 
@@ -73,7 +68,7 @@
                                      uint32_t outputBufferSlotCount, PixelFormat* outFormat);
     bool getClientTargetSupport_2_2(Display display, uint32_t width, uint32_t height,
                                     PixelFormat format, Dataspace dataspace);
-    void setPowerMode_2_2(Display display, V2_2::IComposerClient::PowerMode mode);
+    void setPowerMode_2_2(Display display, IComposerClient::PowerMode mode);
     void setReadbackBuffer(Display display, const native_handle_t* buffer, int32_t releaseFence);
     void getReadbackBufferAttributes(Display display, PixelFormat* outPixelFormat,
                                      Dataspace* outDataspace);
@@ -86,7 +81,7 @@
     std::array<float, 16> getDataspaceSaturationMatrix(Dataspace dataspace);
 
    private:
-    sp<V2_2::IComposerClient> mClient_v2_2;
+    const sp<IComposerClient> mClient;
 };
 
 }  // namespace vts
diff --git a/graphics/composer/2.2/vts/functional/Android.bp b/graphics/composer/2.2/vts/functional/Android.bp
index a3da829..b62f302 100644
--- a/graphics/composer/2.2/vts/functional/Android.bp
+++ b/graphics/composer/2.2/vts/functional/Android.bp
@@ -17,12 +17,15 @@
 cc_test {
     name: "VtsHalGraphicsComposerV2_2TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
-    srcs: ["VtsHalGraphicsComposerV2_2TargetTest.cpp"],
+    srcs: [
+        "VtsHalGraphicsComposerV2_2ReadbackTest.cpp",
+        "VtsHalGraphicsComposerV2_2TargetTest.cpp",
+    ],
 
     // TODO(b/64437680): Assume these libs are always available on the device.
     shared_libs: [
         "libfmq",
-	"libhidltransport",
+        "libhidltransport",
         "libsync",
     ],
     static_libs: [
diff --git a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
new file mode 100644
index 0000000..da8858e
--- /dev/null
+++ b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
@@ -0,0 +1,1336 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "graphics_composer_hidl_hal_readback_tests@2.2"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <android-base/unique_fd.h>
+#include <android/hardware/graphics/composer/2.2/IComposerClient.h>
+#include <composer-command-buffer/2.2/ComposerCommandBuffer.h>
+#include <composer-vts/2.1/GraphicsComposerCallback.h>
+#include <composer-vts/2.1/TestCommandReader.h>
+#include <composer-vts/2.2/ComposerVts.h>
+#include <mapper-vts/2.1/MapperVts.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_2 {
+namespace vts {
+namespace {
+
+using android::hardware::hidl_handle;
+using common::V1_1::BufferUsage;
+using common::V1_1::Dataspace;
+using common::V1_1::PixelFormat;
+using mapper::V2_1::IMapper;
+using mapper::V2_1::vts::Gralloc;
+using V2_1::Display;
+using V2_1::Layer;
+using V2_1::vts::TestCommandReader;
+
+static const IComposerClient::Color BLACK = {0, 0, 0, 0xff};
+static const IComposerClient::Color RED = {0xff, 0, 0, 0xff};
+static const IComposerClient::Color TRANSLUCENT_RED = {0xff, 0, 0, 0x33};
+static const IComposerClient::Color GREEN = {0, 0xff, 0, 0xff};
+static const IComposerClient::Color BLUE = {0, 0, 0xff, 0xff};
+
+// Test environment for graphics.composer
+class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static GraphicsComposerHidlEnvironment* Instance() {
+        static GraphicsComposerHidlEnvironment* instance = new GraphicsComposerHidlEnvironment;
+        return instance;
+    }
+    virtual void registerTestServices() override { registerTestService<IComposer>(); }
+
+   private:
+    GraphicsComposerHidlEnvironment() {}
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(GraphicsComposerHidlEnvironment);
+};
+
+class TestLayer {
+   public:
+    TestLayer(const std::shared_ptr<ComposerClient>& client, Display display)
+        : mLayer(client->createLayer(display, kBufferSlotCount)), mComposerClient(client) {}
+
+    // ComposerClient will take care of destroying layers, no need to explicitly
+    // call destroyLayers here
+    virtual ~TestLayer(){};
+
+    virtual void write(const std::shared_ptr<CommandWriterBase>& writer) {
+        writer->selectLayer(mLayer);
+        writer->setLayerDisplayFrame(mDisplayFrame);
+        writer->setLayerSourceCrop(mSourceCrop);
+        writer->setLayerZOrder(mZOrder);
+        writer->setLayerSurfaceDamage(mSurfaceDamage);
+        writer->setLayerTransform(mTransform);
+        writer->setLayerPlaneAlpha(mAlpha);
+        writer->setLayerBlendMode(mBlendMode);
+    }
+
+    void setDisplayFrame(IComposerClient::Rect frame) { mDisplayFrame = frame; }
+    void setSourceCrop(IComposerClient::FRect crop) { mSourceCrop = crop; }
+    void setZOrder(uint32_t z) { mZOrder = z; }
+
+    void setSurfaceDamage(std::vector<IComposerClient::Rect> surfaceDamage) {
+        mSurfaceDamage = surfaceDamage;
+    }
+
+    void setTransform(Transform transform) { mTransform = transform; }
+    void setAlpha(float alpha) { mAlpha = alpha; }
+    void setBlendMode(IComposerClient::BlendMode blendMode) { mBlendMode = blendMode; }
+
+    static constexpr uint32_t kBufferSlotCount = 64;
+
+    IComposerClient::Rect mDisplayFrame = {0, 0, 0, 0};
+    uint32_t mZOrder = 0;
+    std::vector<IComposerClient::Rect> mSurfaceDamage;
+    Transform mTransform = static_cast<Transform>(0);
+    IComposerClient::FRect mSourceCrop = {0, 0, 0, 0};
+    float mAlpha = 1.0;
+    IComposerClient::BlendMode mBlendMode = IComposerClient::BlendMode::NONE;
+
+   protected:
+    Layer mLayer;
+
+   private:
+    std::shared_ptr<ComposerClient> const mComposerClient;
+};
+
+class GraphicsComposerReadbackTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    static int32_t GetBytesPerPixel(PixelFormat pixelFormat) {
+        switch (pixelFormat) {
+            case PixelFormat::RGBA_8888:
+                return 4;
+            case PixelFormat::RGB_888:
+                return 3;
+            default:
+                return -1;
+        }
+    }
+
+    static void fillBuffer(int32_t width, int32_t height, uint32_t stride, void* bufferData,
+                           PixelFormat pixelFormat,
+                           std::vector<IComposerClient::Color> desiredPixelColors) {
+        ASSERT_TRUE(pixelFormat == PixelFormat::RGB_888 || pixelFormat == PixelFormat::RGBA_8888);
+        int32_t bytesPerPixel = GetBytesPerPixel(pixelFormat);
+        ASSERT_NE(-1, bytesPerPixel);
+        for (int row = 0; row < height; row++) {
+            for (int col = 0; col < width; col++) {
+                int pixel = row * width + col;
+                IComposerClient::Color srcColor = desiredPixelColors[pixel];
+
+                int offset = (row * stride + col) * bytesPerPixel;
+                uint8_t* pixelColor = (uint8_t*)bufferData + offset;
+                pixelColor[0] = srcColor.r;
+                pixelColor[1] = srcColor.g;
+                pixelColor[2] = srcColor.b;
+
+                if (bytesPerPixel == 4) {
+                    pixelColor[3] = srcColor.a;
+                }
+            }
+        }
+    }
+
+   protected:
+    using PowerMode = V2_1::IComposerClient::PowerMode;
+    void SetUp() override {
+        VtsHalHidlTargetTestBase::SetUp();
+        ASSERT_NO_FATAL_FAILURE(
+            mComposer = std::make_unique<Composer>(
+                GraphicsComposerHidlEnvironment::Instance()->getServiceName<IComposer>()));
+        ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient());
+        mComposerCallback = new V2_1::vts::GraphicsComposerCallback;
+        mComposerClient->registerCallback(mComposerCallback);
+
+        // assume the first display is primary and is never removed
+        mPrimaryDisplay = waitForFirstDisplay();
+        Config activeConfig;
+        ASSERT_NO_FATAL_FAILURE(activeConfig = mComposerClient->getActiveConfig(mPrimaryDisplay));
+        ASSERT_NO_FATAL_FAILURE(
+            mDisplayWidth = mComposerClient->getDisplayAttribute(
+                mPrimaryDisplay, activeConfig, IComposerClient::Attribute::WIDTH));
+        ASSERT_NO_FATAL_FAILURE(
+            mDisplayHeight = mComposerClient->getDisplayAttribute(
+                mPrimaryDisplay, activeConfig, IComposerClient::Attribute::HEIGHT));
+
+        // explicitly disable vsync
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setVsyncEnabled(mPrimaryDisplay, false));
+        mComposerCallback->setVsyncAllowed(false);
+
+        // set up command writer/reader and gralloc
+        mWriter = std::make_shared<CommandWriterBase>(1024);
+        mReader = std::make_unique<TestCommandReader>();
+        mGralloc = std::make_shared<Gralloc>();
+
+        mComposerClient->getRaw()->getReadbackBufferAttributes(
+            mPrimaryDisplay,
+            [&](const auto& tmpError, const auto& tmpPixelFormat, const auto& tmpDataspace) {
+                mHasReadbackBuffer = readbackSupported(tmpPixelFormat, tmpDataspace, tmpError);
+                mPixelFormat = tmpPixelFormat;
+                mDataspace = tmpDataspace;
+            });
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, PowerMode::ON));
+    }
+
+    void TearDown() override {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode(mPrimaryDisplay, PowerMode::OFF));
+        EXPECT_EQ(0, mReader->mErrors.size());
+        EXPECT_EQ(0, mReader->mCompositionChanges.size());
+        if (mComposerCallback != nullptr) {
+            EXPECT_EQ(0, mComposerCallback->getInvalidHotplugCount());
+            EXPECT_EQ(0, mComposerCallback->getInvalidRefreshCount());
+            EXPECT_EQ(0, mComposerCallback->getInvalidVsyncCount());
+        }
+        VtsHalHidlTargetTestBase::TearDown();
+    }
+
+    void clearCommandReaderState() {
+        mReader->mCompositionChanges.clear();
+        mReader->mErrors.clear();
+    }
+
+    void execute() {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->execute(mReader.get(), mWriter.get()));
+    }
+
+    void writeLayers(const std::vector<std::shared_ptr<TestLayer>>& layers) {
+        for (auto layer : layers) {
+            layer->write(mWriter);
+        }
+        execute();
+    }
+
+    void clearColors(std::vector<IComposerClient::Color>& expectedColors, int32_t width,
+                     int32_t height) {
+        for (int row = 0; row < height; row++) {
+            for (int col = 0; col < width; col++) {
+                int pixel = row * mDisplayWidth + col;
+                expectedColors[pixel] = BLACK;
+            }
+        }
+    }
+
+    void fillColorsArea(std::vector<IComposerClient::Color>& expectedColors, int32_t stride,
+                        IComposerClient::Rect area, IComposerClient::Color color) {
+        for (int row = area.top; row < area.bottom; row++) {
+            for (int col = area.left; col < area.right; col++) {
+                int pixel = row * stride + col;
+                expectedColors[pixel] = color;
+            }
+        }
+    }
+
+    bool readbackSupported(const PixelFormat& pixelFormat, const Dataspace& dataspace,
+                           const Error error) {
+        if (error != Error::NONE) {
+            return false;
+        }
+        // TODO: add support for RGBA_1010102
+        if (pixelFormat != PixelFormat::RGB_888 && pixelFormat != PixelFormat::RGBA_8888) {
+            return false;
+        }
+        if (dataspace != Dataspace::V0_SRGB) {
+            return false;
+        }
+        return true;
+    }
+
+
+    std::unique_ptr<Composer> mComposer;
+    std::shared_ptr<ComposerClient> mComposerClient;
+
+    sp<V2_1::vts::GraphicsComposerCallback> mComposerCallback;
+    // the first display and is assumed never to be removed
+    Display mPrimaryDisplay;
+    int32_t mDisplayWidth;
+    int32_t mDisplayHeight;
+    std::shared_ptr<CommandWriterBase> mWriter;
+    std::unique_ptr<TestCommandReader> mReader;
+    std::shared_ptr<Gralloc> mGralloc;
+
+    bool mHasReadbackBuffer;
+    PixelFormat mPixelFormat;
+    Dataspace mDataspace;
+
+    static constexpr uint32_t kClientTargetSlotCount = 64;
+
+   private:
+    Display waitForFirstDisplay() {
+        while (true) {
+            std::vector<Display> displays = mComposerCallback->getDisplays();
+            if (displays.empty()) {
+                usleep(5 * 1000);
+                continue;
+            }
+            return displays[0];
+        }
+    }
+};
+class ReadbackBuffer {
+   public:
+    ReadbackBuffer(Display display, const std::shared_ptr<ComposerClient>& client,
+                   const std::shared_ptr<Gralloc>& gralloc, uint32_t width, uint32_t height,
+                   PixelFormat pixelFormat, Dataspace dataspace) {
+        mDisplay = display;
+
+        mComposerClient = client;
+        mGralloc = gralloc;
+
+        mPixelFormat = pixelFormat;
+        mDataspace = dataspace;
+
+        mInfo.width = width;
+        mInfo.height = height;
+        mInfo.layerCount = 1;
+        mInfo.format = mPixelFormat;
+        mInfo.usage = static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::GPU_TEXTURE);
+
+        mAccessRegion.top = 0;
+        mAccessRegion.left = 0;
+        mAccessRegion.width = width;
+        mAccessRegion.height = height;
+    };
+
+    ~ReadbackBuffer() {
+        if (mBufferHandle != nullptr) {
+            mGralloc->freeBuffer(mBufferHandle);
+        }
+    }
+
+    void setReadbackBuffer() {
+        if (mBufferHandle != nullptr) {
+            mGralloc->freeBuffer(mBufferHandle);
+            mBufferHandle = nullptr;
+        }
+        mBufferHandle = mGralloc->allocate(mInfo, /*import*/ true, &mStride);
+        ASSERT_NE(false, mGralloc->validateBufferSize(mBufferHandle, mInfo, mStride));
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setReadbackBuffer(mDisplay, mBufferHandle, -1));
+    }
+
+    void checkReadbackBuffer(std::vector<IComposerClient::Color> expectedColors) {
+        // lock buffer for reading
+        int32_t fenceHandle;
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->getReadbackBufferFence(mDisplay, &fenceHandle));
+
+        void* bufData = mGralloc->lock(mBufferHandle, mInfo.usage, mAccessRegion, fenceHandle);
+        ASSERT_TRUE(mPixelFormat == PixelFormat::RGB_888 || mPixelFormat == PixelFormat::RGBA_8888);
+        int32_t bytesPerPixel = GraphicsComposerReadbackTest::GetBytesPerPixel(mPixelFormat);
+        ASSERT_NE(-1, bytesPerPixel);
+        for (int row = 0; row < mInfo.height; row++) {
+            for (int col = 0; col < mInfo.width; col++) {
+                int pixel = row * mInfo.width + col;
+                int offset = (row * mStride + col) * bytesPerPixel;
+                uint8_t* pixelColor = (uint8_t*)bufData + offset;
+
+                ASSERT_EQ(expectedColors[pixel].r, pixelColor[0]);
+                ASSERT_EQ(expectedColors[pixel].g, pixelColor[1]);
+                ASSERT_EQ(expectedColors[pixel].b, pixelColor[2]);
+            }
+        }
+        int32_t unlockFence = mGralloc->unlock(mBufferHandle);
+        if (unlockFence != -1) {
+            sync_wait(unlockFence, -1);
+            close(unlockFence);
+        }
+    }
+
+   protected:
+    IMapper::BufferDescriptorInfo mInfo;
+    IMapper::Rect mAccessRegion;
+    uint32_t mStride;
+    const native_handle_t* mBufferHandle = nullptr;
+    PixelFormat mPixelFormat;
+    Dataspace mDataspace;
+    Display mDisplay;
+    std::shared_ptr<Gralloc> mGralloc;
+    std::shared_ptr<ComposerClient> mComposerClient;
+};
+
+class TestColorLayer : public TestLayer {
+   public:
+    TestColorLayer(const std::shared_ptr<ComposerClient>& client, Display display)
+        : TestLayer{client, display} {}
+
+    void write(const std::shared_ptr<CommandWriterBase>& writer) override {
+        TestLayer::write(writer);
+        writer->setLayerCompositionType(IComposerClient::Composition::SOLID_COLOR);
+        writer->setLayerColor(mColor);
+    }
+
+    void setColor(IComposerClient::Color color) { mColor = color; }
+
+   private:
+    IComposerClient::Color mColor = {0xff, 0xff, 0xff, 0xff};
+};
+
+class TestBufferLayer : public TestLayer {
+   public:
+    TestBufferLayer(const std::shared_ptr<ComposerClient>& client,
+                    const std::shared_ptr<Gralloc>& gralloc, Display display, int32_t width,
+                    int32_t height, PixelFormat format,
+                    IComposerClient::Composition composition = IComposerClient::Composition::DEVICE)
+        : TestLayer{client, display} {
+        mGralloc = gralloc;
+        mComposition = composition;
+        mInfo.width = width;
+        mInfo.height = height;
+        mInfo.layerCount = 1;
+        mInfo.format = format;
+        mInfo.usage =
+            static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
+                                  BufferUsage::COMPOSER_OVERLAY);
+
+        mAccessRegion.top = 0;
+        mAccessRegion.left = 0;
+        mAccessRegion.width = width;
+        mAccessRegion.height = height;
+
+        setSourceCrop({0, 0, (float)width, (float)height});
+    }
+
+    ~TestBufferLayer() {
+        if (mBufferHandle != nullptr) {
+            mGralloc->freeBuffer(mBufferHandle);
+        }
+    }
+
+    void write(const std::shared_ptr<CommandWriterBase>& writer) override {
+        TestLayer::write(writer);
+        writer->setLayerCompositionType(mComposition);
+        writer->setLayerDataspace(Dataspace::UNKNOWN);
+        writer->setLayerVisibleRegion(std::vector<IComposerClient::Rect>(1, mDisplayFrame));
+        if (mBufferHandle != nullptr) writer->setLayerBuffer(0, mBufferHandle, mFillFence);
+    }
+
+    void fillBuffer(std::vector<IComposerClient::Color> expectedColors) {
+        void* bufData = mGralloc->lock(mBufferHandle, mInfo.usage, mAccessRegion, -1);
+        ASSERT_NO_FATAL_FAILURE(GraphicsComposerReadbackTest::fillBuffer(
+            mInfo.width, mInfo.height, mStride, bufData, mInfo.format, expectedColors));
+        mFillFence = mGralloc->unlock(mBufferHandle);
+        if (mFillFence != -1) {
+            sync_wait(mFillFence, -1);
+            close(mFillFence);
+        }
+    }
+    void setBuffer(std::vector<IComposerClient::Color> colors) {
+        if (mBufferHandle != nullptr) {
+            mGralloc->freeBuffer(mBufferHandle);
+            mBufferHandle = nullptr;
+        }
+        mBufferHandle = mGralloc->allocate(mInfo, /*import*/ true, &mStride);
+        ASSERT_NE(nullptr, mBufferHandle);
+        ASSERT_NO_FATAL_FAILURE(fillBuffer(colors));
+        ASSERT_NE(false, mGralloc->validateBufferSize(mBufferHandle, mInfo, mStride));
+    }
+
+    void setToClientComposition(const std::shared_ptr<CommandWriterBase>& writer) {
+        writer->selectLayer(mLayer);
+        writer->setLayerCompositionType(IComposerClient::Composition::CLIENT);
+    }
+
+    IMapper::BufferDescriptorInfo mInfo;
+    IMapper::Rect mAccessRegion;
+    uint32_t mStride;
+
+   protected:
+    IComposerClient::Composition mComposition;
+    std::shared_ptr<Gralloc> mGralloc;
+    int32_t mFillFence;
+    const native_handle_t* mBufferHandle = nullptr;
+};
+
+TEST_F(GraphicsComposerReadbackTest, SingleSolidColorLayer) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+    mWriter->selectDisplay(mPrimaryDisplay);
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
+                                                          RenderIntent::COLORIMETRIC));
+
+    auto layer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+    IComposerClient::Rect coloredSquare({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setColor(BLUE);
+    layer->setDisplayFrame(coloredSquare);
+    layer->setZOrder(10);
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {layer};
+
+    // expected color for each pixel
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, coloredSquare, BLUE);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    // if hwc cannot handle and asks for composition change,
+    // just succeed the test
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, SetLayerBuffer) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight / 4}, RED);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mDisplayHeight / 4, mDisplayWidth, mDisplayHeight / 2}, GREEN);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mDisplayHeight / 2, mDisplayWidth, mDisplayHeight}, BLUE);
+
+    auto layer =
+        std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth,
+                                          mDisplayHeight, PixelFormat::RGBA_8888);
+    layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setZOrder(10);
+    ASSERT_NO_FATAL_FAILURE(layer->setBuffer(expectedColors));
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {layer};
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    mWriter->presentDisplay();
+    execute();
+
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, SetLayerBufferNoEffect) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
+                                                          RenderIntent::COLORIMETRIC));
+
+    auto layer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+    IComposerClient::Rect coloredSquare({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setColor(BLUE);
+    layer->setDisplayFrame(coloredSquare);
+    layer->setZOrder(10);
+    layer->write(mWriter);
+
+    // This following buffer call should have no effect
+    IMapper::BufferDescriptorInfo bufferInfo{};
+    bufferInfo.width = mDisplayWidth;
+    bufferInfo.height = mDisplayHeight;
+    bufferInfo.layerCount = 1;
+    bufferInfo.format = PixelFormat::RGBA_8888;
+    bufferInfo.usage =
+        static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN);
+    const native_handle_t* bufferHandle = mGralloc->allocate(bufferInfo);
+    mWriter->setLayerBuffer(0, bufferHandle, -1);
+
+    // expected color for each pixel
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, coloredSquare, BLUE);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    mWriter->validateDisplay();
+    execute();
+
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, ClientComposition) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight / 4}, RED);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mDisplayHeight / 4, mDisplayWidth, mDisplayHeight / 2}, GREEN);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mDisplayHeight / 2, mDisplayWidth, mDisplayHeight}, BLUE);
+
+    auto layer =
+        std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth,
+                                          mDisplayHeight, PixelFormat::RGBA_FP16);
+    layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setZOrder(10);
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {layer};
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+
+    if (mReader->mCompositionChanges.size() != 0) {
+        ASSERT_EQ(1, mReader->mCompositionChanges.size());
+        ASSERT_EQ(1, mReader->mCompositionChanges[0].second);
+
+        ASSERT_NO_FATAL_FAILURE(
+            mComposerClient->setClientTargetSlotCount(mPrimaryDisplay, kClientTargetSlotCount));
+
+        // create client target buffer
+        uint32_t clientStride;
+        IMapper::BufferDescriptorInfo clientInfo;
+        clientInfo.width = layer->mInfo.width;
+        clientInfo.height = layer->mInfo.height;
+        clientInfo.layerCount = layer->mInfo.layerCount;
+        clientInfo.format = PixelFormat::RGBA_8888;
+        clientInfo.usage =
+            static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
+                                  BufferUsage::COMPOSER_CLIENT_TARGET);
+        const native_handle_t* clientBufferHandle =
+            mGralloc->allocate(clientInfo, /*import*/ true, &clientStride);
+        ASSERT_NE(nullptr, clientBufferHandle);
+
+        void* clientBufData =
+            mGralloc->lock(clientBufferHandle, clientInfo.usage, layer->mAccessRegion, -1);
+
+        ASSERT_NO_FATAL_FAILURE(fillBuffer(clientInfo.width, clientInfo.height, clientStride,
+                                           clientBufData, clientInfo.format, expectedColors));
+        int clientFence = mGralloc->unlock(clientBufferHandle);
+        if (clientFence != -1) {
+            sync_wait(clientFence, -1);
+            close(clientFence);
+        }
+
+        IComposerClient::Rect damage{0, 0, mDisplayWidth, mDisplayHeight};
+        mWriter->setClientTarget(0, clientBufferHandle, clientFence, Dataspace::UNKNOWN,
+                                 std::vector<IComposerClient::Rect>(1, damage));
+
+        layer->setToClientComposition(mWriter);
+        mWriter->validateDisplay();
+        execute();
+        ASSERT_EQ(0, mReader->mCompositionChanges.size());
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    mWriter->presentDisplay();
+    execute();
+
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, DeviceAndClientComposition) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+    ASSERT_NO_FATAL_FAILURE(
+        mComposerClient->setClientTargetSlotCount(mPrimaryDisplay, kClientTargetSlotCount));
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight / 2}, GREEN);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mDisplayHeight / 2, mDisplayWidth, mDisplayHeight}, RED);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    auto deviceLayer =
+        std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth,
+                                          mDisplayHeight / 2, PixelFormat::RGBA_8888);
+    std::vector<IComposerClient::Color> deviceColors(deviceLayer->mInfo.width *
+                                                     deviceLayer->mInfo.height);
+    fillColorsArea(deviceColors, deviceLayer->mInfo.width,
+                   {0, 0, static_cast<int32_t>(deviceLayer->mInfo.width),
+                    static_cast<int32_t>(deviceLayer->mInfo.height)},
+                   GREEN);
+    deviceLayer->setDisplayFrame({0, 0, static_cast<int32_t>(deviceLayer->mInfo.width),
+                                  static_cast<int32_t>(deviceLayer->mInfo.height)});
+    deviceLayer->setZOrder(10);
+    ASSERT_NO_FATAL_FAILURE(deviceLayer->setBuffer(deviceColors));
+    deviceLayer->write(mWriter);
+
+    auto clientLayer = std::make_shared<TestBufferLayer>(
+        mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth, mDisplayHeight / 2,
+        PixelFormat::RGBA_8888, IComposerClient::Composition::CLIENT);
+    IComposerClient::Rect clientFrame = {0, mDisplayHeight / 2, mDisplayWidth, mDisplayHeight};
+    clientLayer->setDisplayFrame(clientFrame);
+    clientLayer->setZOrder(0);
+    clientLayer->write(mWriter);
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    IMapper::BufferDescriptorInfo clientInfo;
+    clientInfo.width = mDisplayWidth;
+    clientInfo.height = mDisplayHeight;
+    clientInfo.layerCount = 1;
+    clientInfo.format = PixelFormat::RGBA_8888;
+    clientInfo.usage =
+        static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
+                              BufferUsage::COMPOSER_CLIENT_TARGET);
+
+    uint32_t clientStride;
+    const native_handle_t* clientBufferHandle =
+        mGralloc->allocate(clientInfo, /*import*/ true, &clientStride);
+    ASSERT_NE(nullptr, clientBufferHandle);
+
+    IMapper::Rect clientAccessRegion;
+    clientAccessRegion.left = 0;
+    clientAccessRegion.top = 0;
+    clientAccessRegion.width = mDisplayWidth;
+    clientAccessRegion.height = mDisplayHeight;
+    void* clientData = mGralloc->lock(clientBufferHandle, clientInfo.usage, clientAccessRegion, -1);
+    std::vector<IComposerClient::Color> clientColors(clientInfo.width * clientInfo.height);
+    fillColorsArea(clientColors, clientInfo.width, clientFrame, RED);
+    ASSERT_NO_FATAL_FAILURE(fillBuffer(clientInfo.width, clientInfo.height, clientStride,
+                                       clientData, clientInfo.format, clientColors));
+    int clientFence = mGralloc->unlock(clientBufferHandle);
+    if (clientFence != -1) {
+        sync_wait(clientFence, -1);
+        close(clientFence);
+    }
+
+    mWriter->setClientTarget(0, clientBufferHandle, clientFence, Dataspace::UNKNOWN,
+                             std::vector<IComposerClient::Rect>(1, clientFrame));
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, SetLayerDamage) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelformat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    IComposerClient::Rect redRect = {0, 0, mDisplayWidth / 4, mDisplayHeight / 4};
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, redRect, RED);
+
+    auto layer =
+        std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth,
+                                          mDisplayHeight, PixelFormat::RGBA_8888);
+    layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setZOrder(10);
+    ASSERT_NO_FATAL_FAILURE(layer->setBuffer(expectedColors));
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {layer};
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+
+    // update surface damage and recheck
+    redRect = {mDisplayWidth / 4, mDisplayHeight / 4, mDisplayWidth / 2, mDisplayHeight / 2};
+    clearColors(expectedColors, mDisplayWidth, mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, redRect, RED);
+
+    ASSERT_NO_FATAL_FAILURE(layer->fillBuffer(expectedColors));
+    layer->setSurfaceDamage(
+        std::vector<IComposerClient::Rect>(1, {0, 0, mDisplayWidth / 2, mDisplayWidth / 2}));
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_EQ(0, mReader->mCompositionChanges.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, SetLayerPlaneAlpha) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
+                                                          RenderIntent::COLORIMETRIC));
+
+    auto layer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+    layer->setColor(RED);
+    layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setZOrder(10);
+    layer->setAlpha(0);
+    layer->setBlendMode(IComposerClient::BlendMode::PREMULTIPLIED);
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {layer};
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, SetLayerSourceCrop) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight / 4}, RED);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mDisplayHeight / 2, mDisplayWidth, mDisplayHeight}, BLUE);
+
+    auto layer =
+        std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth,
+                                          mDisplayHeight, PixelFormat::RGBA_8888);
+    layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+    layer->setZOrder(10);
+    layer->setSourceCrop({0, static_cast<float>(mDisplayHeight / 2),
+                          static_cast<float>(mDisplayWidth), static_cast<float>(mDisplayHeight)});
+    ASSERT_NO_FATAL_FAILURE(layer->setBuffer(expectedColors));
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {layer};
+
+    // update expected colors to match crop
+    fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight}, BLUE);
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerReadbackTest, SetLayerZOrder) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
+                                                          RenderIntent::COLORIMETRIC));
+
+    IComposerClient::Rect redRect = {0, 0, mDisplayWidth, mDisplayHeight / 2};
+    IComposerClient::Rect blueRect = {0, mDisplayHeight / 4, mDisplayWidth, mDisplayHeight};
+    auto redLayer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+    redLayer->setColor(RED);
+    redLayer->setDisplayFrame(redRect);
+
+    auto blueLayer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+    blueLayer->setColor(BLUE);
+    blueLayer->setDisplayFrame(blueRect);
+    blueLayer->setZOrder(5);
+
+    std::vector<std::shared_ptr<TestLayer>> layers = {redLayer, blueLayer};
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+
+    // red in front of blue
+    redLayer->setZOrder(10);
+
+    // fill blue first so that red will overwrite on overlap
+    fillColorsArea(expectedColors, mDisplayWidth, blueRect, BLUE);
+    fillColorsArea(expectedColors, mDisplayWidth, redRect, RED);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+
+    redLayer->setZOrder(1);
+    clearColors(expectedColors, mDisplayWidth, mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth, redRect, RED);
+    fillColorsArea(expectedColors, mDisplayWidth, blueRect, BLUE);
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    writeLayers(layers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mCompositionChanges.size());
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+class GraphicsComposerBlendModeReadbackTest : public GraphicsComposerReadbackTest,
+                                              public ::testing::WithParamInterface<float> {
+   public:
+    void SetUp() override {
+        GraphicsComposerReadbackTest::SetUp();
+        mBackgroundColor = BLACK;
+        mTopLayerColor = RED;
+    }
+
+    void TearDown() override { GraphicsComposerReadbackTest::TearDown(); }
+
+    void setBackgroundColor(IComposerClient::Color color) { mBackgroundColor = color; }
+
+    void setTopLayerColor(IComposerClient::Color color) { mTopLayerColor = color; }
+
+    void setUpLayers(IComposerClient::BlendMode blendMode) {
+        mLayers.clear();
+        std::vector<IComposerClient::Color> topLayerPixelColors(mDisplayWidth * mDisplayHeight);
+        fillColorsArea(topLayerPixelColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight},
+                       mTopLayerColor);
+
+        auto backgroundLayer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+        backgroundLayer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+        backgroundLayer->setZOrder(0);
+        backgroundLayer->setColor(mBackgroundColor);
+
+        auto layer = std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay,
+                                                       mDisplayWidth, mDisplayHeight,
+                                                       PixelFormat::RGBA_8888);
+        layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+        layer->setZOrder(10);
+        ASSERT_NO_FATAL_FAILURE(layer->setBuffer(topLayerPixelColors));
+
+        layer->setBlendMode(blendMode);
+        layer->setAlpha(GetParam());
+
+        mLayers.push_back(backgroundLayer);
+        mLayers.push_back(layer);
+    }
+
+    void setExpectedColors(std::vector<IComposerClient::Color>& expectedColors) {
+        ASSERT_EQ(2, mLayers.size());
+        clearColors(expectedColors, mDisplayWidth, mDisplayHeight);
+
+        auto layer = mLayers[1];
+        IComposerClient::BlendMode blendMode = layer->mBlendMode;
+        float alpha = mTopLayerColor.a / 255.0 * layer->mAlpha;
+        if (blendMode == IComposerClient::BlendMode::NONE) {
+            for (int i = 0; i < expectedColors.size(); i++) {
+                expectedColors[i].r = mTopLayerColor.r * layer->mAlpha;
+                expectedColors[i].g = mTopLayerColor.g * layer->mAlpha;
+                expectedColors[i].b = mTopLayerColor.b * layer->mAlpha;
+                expectedColors[i].a = alpha * 255.0;
+            }
+        } else if (blendMode == IComposerClient::BlendMode::PREMULTIPLIED) {
+            for (int i = 0; i < expectedColors.size(); i++) {
+                expectedColors[i].r =
+                    mTopLayerColor.r * layer->mAlpha + mBackgroundColor.r * (1.0 - alpha);
+                expectedColors[i].g =
+                    mTopLayerColor.g * layer->mAlpha + mBackgroundColor.g * (1.0 - alpha);
+                expectedColors[i].b =
+                    mTopLayerColor.b * layer->mAlpha + mBackgroundColor.b * (1.0 - alpha);
+                expectedColors[i].a = alpha + mBackgroundColor.a * (1.0 - alpha);
+            }
+        } else if (blendMode == IComposerClient::BlendMode::COVERAGE) {
+            for (int i = 0; i < expectedColors.size(); i++) {
+                expectedColors[i].r = mTopLayerColor.r * alpha + mBackgroundColor.r * (1.0 - alpha);
+                expectedColors[i].g = mTopLayerColor.g * alpha + mBackgroundColor.g * (1.0 - alpha);
+                expectedColors[i].b = mTopLayerColor.b * alpha + mBackgroundColor.b * (1.0 - alpha);
+                expectedColors[i].a = mTopLayerColor.a * alpha + mBackgroundColor.a * (1.0 - alpha);
+            }
+        }
+    }
+
+   protected:
+    std::vector<std::shared_ptr<TestLayer>> mLayers;
+    IComposerClient::Color mBackgroundColor;
+    IComposerClient::Color mTopLayerColor;
+};
+
+TEST_P(GraphicsComposerBlendModeReadbackTest, None) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+
+    setBackgroundColor(BLACK);
+    setTopLayerColor(TRANSLUCENT_RED);
+    setUpLayers(IComposerClient::BlendMode::NONE);
+    setExpectedColors(expectedColors);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    writeLayers(mLayers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+// TODO: bug 116865056: Readback returns (245, 0, 0) for layer plane
+// alpha of .2, expected 10.2
+TEST_P(GraphicsComposerBlendModeReadbackTest, DISABLED_Coverage) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+
+    setBackgroundColor(BLACK);
+    setTopLayerColor(TRANSLUCENT_RED);
+
+    setUpLayers(IComposerClient::BlendMode::COVERAGE);
+    setExpectedColors(expectedColors);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    writeLayers(mLayers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_P(GraphicsComposerBlendModeReadbackTest, Premultiplied) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+
+    setBackgroundColor(BLACK);
+    setTopLayerColor(TRANSLUCENT_RED);
+    setUpLayers(IComposerClient::BlendMode::PREMULTIPLIED);
+    setExpectedColors(expectedColors);
+
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    writeLayers(mLayers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+INSTANTIATE_TEST_CASE_P(BlendModeTest, GraphicsComposerBlendModeReadbackTest,
+                        ::testing::Values(.2, 1.0));
+
+class GraphicsComposerTransformReadbackTest : public GraphicsComposerReadbackTest {
+   protected:
+    void SetUp() override {
+        GraphicsComposerReadbackTest::SetUp();
+
+        mWriter->selectDisplay(mPrimaryDisplay);
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
+                                                              RenderIntent::COLORIMETRIC));
+
+        auto backgroundLayer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
+        backgroundLayer->setColor({0, 0, 0, 0});
+        backgroundLayer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
+        backgroundLayer->setZOrder(0);
+
+        mSideLength = mDisplayWidth < mDisplayHeight ? mDisplayWidth : mDisplayHeight;
+        IComposerClient::Rect redRect = {0, 0, mSideLength / 2, mSideLength / 2};
+        IComposerClient::Rect blueRect = {mSideLength / 2, mSideLength / 2, mSideLength,
+                                          mSideLength};
+
+        mLayer =
+            std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay,
+                                              mSideLength, mSideLength, PixelFormat::RGBA_8888);
+        mLayer->setDisplayFrame({0, 0, mSideLength, mSideLength});
+        mLayer->setZOrder(10);
+
+        std::vector<IComposerClient::Color> baseColors(mSideLength * mSideLength);
+        fillColorsArea(baseColors, mSideLength, redRect, RED);
+        fillColorsArea(baseColors, mSideLength, blueRect, BLUE);
+        ASSERT_NO_FATAL_FAILURE(mLayer->setBuffer(baseColors));
+
+        mLayers = {backgroundLayer, mLayer};
+    }
+
+   protected:
+    std::shared_ptr<TestBufferLayer> mLayer;
+    std::vector<IComposerClient::Color> baseColors;
+    std::vector<std::shared_ptr<TestLayer>> mLayers;
+    int mSideLength;
+};
+
+TEST_F(GraphicsComposerTransformReadbackTest, FLIP_H) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+    mLayer->setTransform(Transform::FLIP_H);
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {mSideLength / 2, 0, mSideLength, mSideLength / 2}, RED);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mSideLength / 2, mSideLength / 2, mSideLength}, BLUE);
+
+    writeLayers(mLayers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerTransformReadbackTest, FLIP_V) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    mLayer->setTransform(Transform::FLIP_V);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {0, mSideLength / 2, mSideLength / 2, mSideLength}, RED);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {mSideLength / 2, 0, mSideLength, mSideLength / 2}, BLUE);
+
+    writeLayers(mLayers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+TEST_F(GraphicsComposerTransformReadbackTest, ROT_180) {
+    if (!mHasReadbackBuffer) {
+        GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
+        return;
+    }
+    ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
+                                  mDisplayHeight, mPixelFormat, mDataspace);
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
+
+    mLayer->setTransform(Transform::ROT_180);
+
+    std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(expectedColors, mDisplayWidth,
+                   {mSideLength / 2, mSideLength / 2, mSideLength, mSideLength}, RED);
+    fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mSideLength / 2, mSideLength / 2}, BLUE);
+
+    writeLayers(mLayers);
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->validateDisplay();
+    execute();
+    if (mReader->mCompositionChanges.size() != 0) {
+        clearCommandReaderState();
+        GTEST_SUCCEED();
+        return;
+    }
+    ASSERT_EQ(0, mReader->mErrors.size());
+    mWriter->presentDisplay();
+    execute();
+    ASSERT_EQ(0, mReader->mErrors.size());
+    ASSERT_NO_FATAL_FAILURE(readbackBuffer.checkReadbackBuffer(expectedColors));
+}
+
+}  // anonymous namespace
+}  // namespace vts
+}  // namespace V2_2
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp
index 951e874..7834b94 100644
--- a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp
+++ b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp
@@ -32,17 +32,15 @@
 namespace vts {
 namespace {
 
-using android::hardware::graphics::common::V1_0::BufferUsage;
-using android::hardware::graphics::common::V1_0::ColorTransform;
-using android::hardware::graphics::common::V1_0::Transform;
-using android::hardware::graphics::common::V1_1::ColorMode;
-using android::hardware::graphics::common::V1_1::Dataspace;
-using android::hardware::graphics::common::V1_1::PixelFormat;
-using android::hardware::graphics::common::V1_1::RenderIntent;
-using android::hardware::graphics::composer::V2_2::IComposerClient;
-using android::hardware::graphics::mapper::V2_0::IMapper;
-using android::hardware::graphics::mapper::V2_0::vts::Gralloc;
-using GrallocError = android::hardware::graphics::mapper::V2_0::Error;
+using common::V1_0::BufferUsage;
+using common::V1_0::ColorTransform;
+using common::V1_0::Transform;
+using common::V1_1::ColorMode;
+using common::V1_1::Dataspace;
+using common::V1_1::PixelFormat;
+using common::V1_1::RenderIntent;
+using mapper::V2_0::IMapper;
+using mapper::V2_0::vts::Gralloc;
 
 // Test environment for graphics.composer
 class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
@@ -65,9 +63,9 @@
    protected:
     void SetUp() override {
         ASSERT_NO_FATAL_FAILURE(
-            mComposer = std::make_unique<Composer_v2_2>(
+            mComposer = std::make_unique<Composer>(
                 GraphicsComposerHidlEnvironment::Instance()->getServiceName<IComposer>()));
-        ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient_v2_2());
+        ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient());
 
         mComposerCallback = new V2_1::vts::GraphicsComposerCallback;
         mComposerClient->registerCallback(mComposerCallback);
@@ -75,14 +73,29 @@
         // assume the first display is primary and is never removed
         mPrimaryDisplay = waitForFirstDisplay();
 
+        Config config = mComposerClient->getActiveConfig(mPrimaryDisplay);
+        mDisplayWidth = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        mDisplayHeight = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+
         // explicitly disable vsync
         mComposerClient->setVsyncEnabled(mPrimaryDisplay, false);
         mComposerCallback->setVsyncAllowed(false);
 
         mComposerClient->getRaw()->getReadbackBufferAttributes(
-            mPrimaryDisplay, [&](const auto& tmpError, const auto&, const auto&) {
+            mPrimaryDisplay,
+            [&](const auto& tmpError, const auto& tmpPixelFormat, const auto& tmpDataspace) {
                 mHasReadbackBuffer = tmpError == Error::NONE;
+                if (mHasReadbackBuffer) {
+                    mReadbackPixelFormat = tmpPixelFormat;
+                    mReadbackDataspace = tmpDataspace;
+                    ASSERT_LT(static_cast<PixelFormat>(0), mReadbackPixelFormat);
+                    ASSERT_NE(Dataspace::UNKNOWN, mReadbackDataspace);
+                }
             });
+
+        mInvalidDisplayId = GetInvalidDisplayId();
     }
 
     void TearDown() override {
@@ -93,16 +106,39 @@
         }
     }
 
+    // returns an invalid display id (one that has not been registered to a
+    // display.  Currently assuming that a device will never have close to
+    // std::numeric_limit<uint64_t>::max() displays registered while running tests
+    Display GetInvalidDisplayId() {
+        std::vector<Display> validDisplays = mComposerCallback->getDisplays();
+        uint64_t id = std::numeric_limits<uint64_t>::max();
+        while (id > 0) {
+            if (std::find(validDisplays.begin(), validDisplays.end(), id) == validDisplays.end()) {
+                return id;
+            }
+            id--;
+        }
+
+        return 0;
+    }
+
     // use the slot count usually set by SF
     static constexpr uint32_t kBufferSlotCount = 64;
 
-    std::unique_ptr<Composer_v2_2> mComposer;
-    std::unique_ptr<ComposerClient_v2_2> mComposerClient;
+    std::unique_ptr<Composer> mComposer;
+    std::unique_ptr<ComposerClient> mComposerClient;
     sp<V2_1::vts::GraphicsComposerCallback> mComposerCallback;
     // the first display and is assumed never to be removed
     Display mPrimaryDisplay;
+    int32_t mDisplayWidth;
+    int32_t mDisplayHeight;
+
     bool mHasReadbackBuffer;
 
+    uint64_t mInvalidDisplayId;
+    PixelFormat mReadbackPixelFormat;
+    Dataspace mReadbackDataspace;
+
    private:
     Display waitForFirstDisplay() {
         while (true) {
@@ -125,11 +161,14 @@
 
         ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>());
 
-        mWriter = std::make_unique<V2_2::CommandWriterBase>(1024);
+        mWriter = std::make_unique<CommandWriterBase>(1024);
         mReader = std::make_unique<V2_1::vts::TestCommandReader>();
     }
 
-    void TearDown() override { ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::TearDown()); }
+    void TearDown() override {
+        ASSERT_EQ(0, mReader->mErrors.size());
+        ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::TearDown());
+    }
 
     const native_handle_t* allocate() {
         IMapper::BufferDescriptorInfo info{};
@@ -143,9 +182,9 @@
         return mGralloc->allocate(info);
     }
 
-    void execute() { mComposerClient->execute_v2_2(mReader.get(), mWriter.get()); }
+    void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
 
-    std::unique_ptr<V2_2::CommandWriterBase> mWriter;
+    std::unique_ptr<CommandWriterBase> mWriter;
     std::unique_ptr<V2_1::vts::TestCommandReader> mReader;
 
    private:
@@ -191,6 +230,16 @@
         {IComposerClient::PerFrameMetadataKey::MAX_FRAME_AVERAGE_LIGHT_LEVEL, 62.0});
     mWriter->setLayerPerFrameMetadata(hidlMetadata);
     execute();
+
+    if (mReader->mErrors.size() == 1 &&
+        static_cast<Error>(mReader->mErrors[0].second) == Error::UNSUPPORTED) {
+        mReader->mErrors.clear();
+        GTEST_SUCCEED() << "SetLayerPerFrameMetadata is not supported";
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->destroyLayer(mPrimaryDisplay, layer));
+        return;
+    }
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->destroyLayer(mPrimaryDisplay, layer));
 }
 
 /**
@@ -249,9 +298,35 @@
 }
 
 /**
+ * Test IComposerClient::getClientTargetSupport_2_2
+ *
+ * Test that IComposerClient::getClientTargetSupport_2_2 returns
+ * Error::BAD_DISPLAY when passed in an invalid display handle
+ */
+
+TEST_F(GraphicsComposerHidlTest, GetClientTargetSupport_2_2BadDisplay) {
+    std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        int32_t height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+        ASSERT_LT(0, width);
+        ASSERT_LT(0, height);
+
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+
+        Error error = mComposerClient->getRaw()->getClientTargetSupport_2_2(
+            mInvalidDisplayId, width, height, PixelFormat::RGBA_8888, Dataspace::UNKNOWN);
+
+        EXPECT_EQ(Error::BAD_DISPLAY, error);
+    }
+}
+
+/**
  * Test IComposerClient::setPowerMode_2_2.
  */
-TEST_F(GraphicsComposerHidlTest, setPowerMode_2_2) {
+TEST_F(GraphicsComposerHidlTest, SetPowerMode_2_2) {
     std::vector<IComposerClient::PowerMode> modes;
     modes.push_back(IComposerClient::PowerMode::OFF);
     modes.push_back(IComposerClient::PowerMode::ON_SUSPEND);
@@ -262,25 +337,118 @@
     }
 }
 
-TEST_F(GraphicsComposerHidlTest, setReadbackBuffer) {
+/**
+ * Test IComposerClient::setPowerMode_2_2
+ *
+ * Test that IComposerClient::setPowerMode_2_2 succeeds for different varations
+ * of PowerMode
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerMode_2_2Variations) {
+    std::vector<IComposerClient::PowerMode> modes;
+
+    modes.push_back(IComposerClient::PowerMode::OFF);
+    modes.push_back(IComposerClient::PowerMode::OFF);
+
+    for (auto mode : modes) {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode_2_2(mPrimaryDisplay, mode));
+    }
+
+    modes.clear();
+
+    modes.push_back(IComposerClient::PowerMode::ON);
+    modes.push_back(IComposerClient::PowerMode::ON);
+
+    for (auto mode : modes) {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode_2_2(mPrimaryDisplay, mode));
+    }
+
+    modes.clear();
+
+    modes.push_back(IComposerClient::PowerMode::ON_SUSPEND);
+    modes.push_back(IComposerClient::PowerMode::ON_SUSPEND);
+
+    for (auto mode : modes) {
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode_2_2(mPrimaryDisplay, mode));
+    }
+
+    if (mComposerClient->getDozeSupport(mPrimaryDisplay)) {
+        modes.clear();
+
+        modes.push_back(IComposerClient::PowerMode::DOZE);
+        modes.push_back(IComposerClient::PowerMode::DOZE);
+
+        for (auto mode : modes) {
+            ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode_2_2(mPrimaryDisplay, mode));
+        }
+
+        modes.clear();
+
+        modes.push_back(IComposerClient::PowerMode::DOZE_SUSPEND);
+        modes.push_back(IComposerClient::PowerMode::DOZE_SUSPEND);
+
+        for (auto mode : modes) {
+            ASSERT_NO_FATAL_FAILURE(mComposerClient->setPowerMode_2_2(mPrimaryDisplay, mode));
+        }
+    }
+}
+
+/**
+ * Test IComposerClient::setPowerMode_2_2
+ *
+ * Tests that IComposerClient::setPowerMode_2_2 returns BAD_DISPLAY when passed an
+ * invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerMode_2_2BadDisplay) {
+    Error error = mComposerClient->getRaw()->setPowerMode_2_2(mInvalidDisplayId,
+                                                              IComposerClient::PowerMode::ON);
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
+ * Test IComposerClient::setPowerMode_2_2
+ *
+ * Test that IComposerClient::setPowerMode_2_2 returns BAD_PARAMETER when passed
+ * an invalid PowerMode
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerMode_2_2BadParameter) {
+    Error error = mComposerClient->getRaw()->setPowerMode_2_2(
+        mPrimaryDisplay, static_cast<IComposerClient::PowerMode>(-1));
+    ASSERT_EQ(Error::BAD_PARAMETER, error);
+}
+
+/**
+ * Test IComposerClient::setPowerMode_2_2
+ *
+ * Test that IComposerClient::setPowerMode_2_2 returns UNSUPPORTED when passed
+ * DOZE or DOZE_SUPPORT on a device that does not support these modes
+ */
+TEST_F(GraphicsComposerHidlTest, SetPowerMode_2_2Unsupported) {
+    if (!mComposerClient->getDozeSupport(mPrimaryDisplay)) {
+        Error error = mComposerClient->getRaw()->setPowerMode_2_2(mPrimaryDisplay,
+                                                                  IComposerClient::PowerMode::DOZE);
+        EXPECT_EQ(Error::UNSUPPORTED, error);
+
+        error = mComposerClient->getRaw()->setPowerMode_2_2(
+            mPrimaryDisplay, IComposerClient::PowerMode::DOZE_SUSPEND);
+        EXPECT_EQ(Error::UNSUPPORTED, error);
+    }
+}
+
+/**
+ * Test IComposerClient::setReadbackBuffer
+ *
+ * Test IComposerClient::setReadbackBuffer
+ */
+TEST_F(GraphicsComposerHidlTest, SetReadbackBuffer) {
     if (!mHasReadbackBuffer) {
         return;
     }
 
-    PixelFormat pixelFormat;
-    Dataspace dataspace;
-    mComposerClient->getReadbackBufferAttributes(mPrimaryDisplay, &pixelFormat, &dataspace);
-    ASSERT_LT(static_cast<PixelFormat>(0), pixelFormat);
-    ASSERT_NE(Dataspace::UNKNOWN, dataspace);
-
     IMapper::BufferDescriptorInfo info{};
-    Config config = mComposerClient->getActiveConfig(mPrimaryDisplay);
-    info.width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
-                                                      IComposerClient::Attribute::WIDTH);
-    info.height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
-                                                       IComposerClient::Attribute::HEIGHT);
+    info.width = mDisplayWidth;
+    info.height = mDisplayHeight;
     info.layerCount = 1;
-    info.format = static_cast<common::V1_0::PixelFormat>(pixelFormat);
+    info.format = static_cast<common::V1_0::PixelFormat>(mReadbackPixelFormat);
     // BufferUsage::COMPOSER_OUTPUT is missing
     info.usage = static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY | BufferUsage::CPU_READ_OFTEN);
 
@@ -292,7 +460,49 @@
     mComposerClient->setReadbackBuffer(mPrimaryDisplay, buffer, -1);
 }
 
-TEST_F(GraphicsComposerHidlTest, getReadbackBufferFenceInactive) {
+/**
+ * Test IComposerClient::setReadbackBuffer
+ *
+ * Test that IComposerClient::setReadbackBuffer returns an Error::BAD_DISPLAY
+ * when passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetReadbackBufferBadDisplay) {
+    if (!mHasReadbackBuffer) {
+        return;
+    }
+
+    IMapper::BufferDescriptorInfo info{};
+    info.width = mDisplayWidth;
+    info.height = mDisplayHeight;
+    info.layerCount = 1;
+    info.format = static_cast<common::V1_0::PixelFormat>(mReadbackPixelFormat);
+    info.usage = static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY | BufferUsage::CPU_READ_OFTEN);
+
+    std::unique_ptr<Gralloc> gralloc;
+    const native_handle_t* buffer;
+    ASSERT_NO_FATAL_FAILURE(gralloc = std::make_unique<Gralloc>());
+    ASSERT_NO_FATAL_FAILURE(buffer = gralloc->allocate(info));
+
+    Error error = mComposerClient->getRaw()->setReadbackBuffer(mInvalidDisplayId, buffer, nullptr);
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/**
+ * Test IComposerClient::setReadbackBuffer
+ *
+ * Test that IComposerClient::setReadbackBuffer returns Error::BAD_PARAMETER
+ * when passed an invalid buffer handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetReadbackBufferBadParameter) {
+    if (!mHasReadbackBuffer) {
+        return;
+    }
+
+    Error error = mComposerClient->getRaw()->setReadbackBuffer(mPrimaryDisplay, nullptr, nullptr);
+    ASSERT_EQ(Error::BAD_PARAMETER, error);
+}
+
+TEST_F(GraphicsComposerHidlTest, GetReadbackBufferFenceInactive) {
     if (!mHasReadbackBuffer) {
         return;
     }
@@ -313,14 +523,38 @@
 
     mWriter->selectDisplay(mPrimaryDisplay);
     mWriter->selectLayer(layer);
+    mWriter->setLayerCompositionType(IComposerClient::Composition::SOLID_COLOR);
     mWriter->setLayerFloatColor(IComposerClient::FloatColor{1.0, 1.0, 1.0, 1.0});
     mWriter->setLayerFloatColor(IComposerClient::FloatColor{0.0, 0.0, 0.0, 0.0});
+    execute();
+
+    if (mReader->mErrors.size() == 2 &&
+        static_cast<Error>(mReader->mErrors[0].second) == Error::UNSUPPORTED &&
+        static_cast<Error>(mReader->mErrors[1].second) == Error::UNSUPPORTED) {
+        mReader->mErrors.clear();
+        GTEST_SUCCEED() << "SetLayerFloatColor is not supported";
+        return;
+    }
+
+    // ensure setting float color on layer with composition type that is not
+    // SOLID_COLOR does not fail
+    V2_1::Layer clientLayer;
+    ASSERT_NO_FATAL_FAILURE(clientLayer =
+                                mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
+    mWriter->selectDisplay(mPrimaryDisplay);
+    mWriter->selectLayer(clientLayer);
+    mWriter->setLayerCompositionType(IComposerClient::Composition::CLIENT);
+    mWriter->setLayerFloatColor(IComposerClient::FloatColor{1.0, 1.0, 1.0, 1.0});
+    execute();
+
+    // At this point we know that this function is supported so there should be
+    // no errors (checked upon TearDown)
 }
 
 /**
  * Test IComposerClient::getDataspaceSaturationMatrix.
  */
-TEST_F(GraphicsComposerHidlTest, getDataspaceSaturationMatrix) {
+TEST_F(GraphicsComposerHidlTest, GetDataspaceSaturationMatrix) {
     auto matrix = mComposerClient->getDataspaceSaturationMatrix(Dataspace::SRGB_LINEAR);
     // the last row is known
     ASSERT_EQ(0.0f, matrix[12]);
@@ -329,6 +563,19 @@
     ASSERT_EQ(1.0f, matrix[15]);
 }
 
+/*
+ * Test IComposerClient::getDataspaceSaturationMatrix
+ *
+ * Test that IComposerClient::getDataspaceSaturationMatrix returns
+ * Error::BAD_PARAMETER when passed a dataspace other than
+ * Dataspace::SRGB_LINEAR
+ */
+TEST_F(GraphicsComposerHidlTest, GetDataspaceSaturationMatrixBadParameter) {
+    mComposerClient->getRaw()->getDataspaceSaturationMatrix(
+        Dataspace::UNKNOWN,
+        [&](const auto& tmpError, const auto&) { ASSERT_EQ(Error::BAD_PARAMETER, tmpError); });
+}
+
 /**
  * Test IComposerClient::getColorMode_2_2.
  */
@@ -339,10 +586,22 @@
     EXPECT_NE(modes.cend(), nativeMode);
 }
 
-/**
- * Test IComposerClient::getRenderIntent.
+/*
+ * Test IComposerClient::getColorMode_2_2
+ *
+ * Test that IComposerClient::getColorMode returns Error::BAD_DISPLAY when
+ * passed an invalid display handle
  */
-TEST_F(GraphicsComposerHidlTest, GetRenderIntent) {
+TEST_F(GraphicsComposerHidlTest, GetColorMode_2_2BadDisplay) {
+    mComposerClient->getRaw()->getColorModes_2_2(
+        mInvalidDisplayId,
+        [&](const auto& tmpError, const auto&) { ASSERT_EQ(Error::BAD_DISPLAY, tmpError); });
+}
+
+/**
+ * Test IComposerClient::getRenderIntents.
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents) {
     std::vector<ColorMode> modes = mComposerClient->getColorModes(mPrimaryDisplay);
     for (auto mode : modes) {
         std::vector<RenderIntent> intents =
@@ -366,6 +625,33 @@
     }
 }
 
+/*
+ * Test IComposerClient::getRenderIntents
+ *
+ * Test that IComposerClient::getRenderIntent returns Error::BAD_DISPLAY when
+ * passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntentsBadDisplay) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes(mPrimaryDisplay);
+    for (auto mode : modes) {
+        mComposerClient->getRaw()->getRenderIntents(
+            mInvalidDisplayId, mode,
+            [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_DISPLAY, tmpError); });
+    }
+}
+
+/*
+ * Test IComposerClient::getRenderIntents
+ *
+ * Test that IComposerClient::getRenderIntents returns Error::BAD_PARAMETER when
+ * pased either an invalid Color mode or an invalid Render Intent
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntentsBadParameter) {
+    mComposerClient->getRaw()->getRenderIntents(
+        mPrimaryDisplay, static_cast<ColorMode>(-1),
+        [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_PARAMETER, tmpError); });
+}
+
 /**
  * Test IComposerClient::setColorMode_2_2.
  */
@@ -378,6 +664,37 @@
             mComposerClient->setColorMode(mPrimaryDisplay, mode, intent);
         }
     }
+
+    mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::NATIVE, RenderIntent::COLORIMETRIC);
+}
+
+/*
+ * Test IComposerClient::setColorMode_2_2
+ *
+ * Test that IComposerClient::setColorMode_2_2 returns an Error::BAD_DISPLAY
+ * when passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_2BadDisplay) {
+    Error error = mComposerClient->getRaw()->setColorMode_2_2(mInvalidDisplayId, ColorMode::NATIVE,
+                                                              RenderIntent::COLORIMETRIC);
+
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/*
+ * Test IComposerClient::setColorMode_2_2
+ *
+ * Test that IComposerClient::setColorMode_2_2 returns Error::BAD_PARAMETER when
+ * passed an invalid Color mode or an invalid render intent
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_2BadParameter) {
+    Error colorModeError = mComposerClient->getRaw()->setColorMode_2_2(
+        mPrimaryDisplay, static_cast<ColorMode>(-1), RenderIntent::COLORIMETRIC);
+    EXPECT_EQ(Error::BAD_PARAMETER, colorModeError);
+
+    Error renderIntentError = mComposerClient->getRaw()->setColorMode_2_2(
+        mPrimaryDisplay, ColorMode::NATIVE, static_cast<RenderIntent>(-1));
+    EXPECT_EQ(Error::BAD_PARAMETER, renderIntentError);
 }
 
 }  // namespace
diff --git a/graphics/composer/2.3/Android.bp b/graphics/composer/2.3/Android.bp
new file mode 100644
index 0000000..6d29348
--- /dev/null
+++ b/graphics/composer/2.3/Android.bp
@@ -0,0 +1,23 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.composer@2.3",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IComposer.hal",
+        "IComposerClient.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.composer@2.2",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: false,
+}
+
diff --git a/graphics/composer/2.3/IComposer.hal b/graphics/composer/2.3/IComposer.hal
new file mode 100644
index 0000000..90b2427
--- /dev/null
+++ b/graphics/composer/2.3/IComposer.hal
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.composer@2.3;
+
+import IComposerClient;
+
+import @2.1::Error;
+import @2.2::IComposer;
+
+interface IComposer extends @2.2::IComposer {
+
+    /**
+     * Creates a v2.3 client of the composer. Supersedes @2.1::createClient.
+     *
+     * @return error is NONE upon success. Otherwise,
+     *         NO_RESOURCES when the client could not be created.
+     * @return client is the newly created client.
+     */
+    @entry
+    @callflow(next="*")
+    createClient_2_3() generates (Error error, IComposerClient client);
+
+};
diff --git a/graphics/composer/2.3/IComposerClient.hal b/graphics/composer/2.3/IComposerClient.hal
new file mode 100644
index 0000000..a3b7792
--- /dev/null
+++ b/graphics/composer/2.3/IComposerClient.hal
@@ -0,0 +1,500 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.composer@2.3;
+
+import android.hardware.graphics.common@1.1::RenderIntent;
+import android.hardware.graphics.common@1.2::PixelFormat;
+import android.hardware.graphics.common@1.2::ColorMode;
+import android.hardware.graphics.common@1.2::Dataspace;
+import android.hardware.graphics.common@1.2::Hdr;
+import android.hardware.graphics.composer@2.1::IComposerClient.Command;
+import @2.2::IComposerClient;
+import @2.1::Display;
+import @2.1::Error;
+
+interface IComposerClient extends @2.2::IComposerClient {
+
+    // Bug: Move this enum to LLNDK after we decide where to put graphic types.
+    /**
+     * Required capabilities which are supported by the display. The
+     * particular set of supported capabilities for a given display may be
+     * retrieved using getDisplayCapabilities.
+     */
+    enum DisplayCapability : uint32_t {
+        INVALID = 0,
+
+        /**
+         * Indicates that the display must apply a color transform even when
+         * either the client or the device has chosen that all layers should
+         * be composed by the client. This prevents the client from applying
+         * the color transform during its composition step.
+         * If getDisplayCapabilities is supported, the global capability
+         * SKIP_CLIENT_COLOR_TRANSFORM is ignored.
+         * If getDisplayCapabilities is not supported, and the global capability
+         * SKIP_CLIENT_COLOR_TRANSFORM is returned by getCapabilities,
+         * then all displays must be treated as having
+         * SKIP_CLIENT_COLOR_TRANSFORM.
+         */
+        SKIP_CLIENT_COLOR_TRANSFORM = 1,
+
+        /**
+         * Indicates that the display supports PowerMode::DOZE and
+         * PowerMode::DOZE_SUSPEND. DOZE_SUSPEND may not provide any benefit
+         * over DOZE (see the definition of PowerMode for more information),
+         * but if both DOZE and DOZE_SUSPEND are no different from
+         * PowerMode::ON, the device must not claim support.
+         * Must be returned by getDisplayCapabilities when getDozeSupport
+         * indicates the display supports PowerMode::DOZE and
+         * PowerMode::DOZE_SUSPEND.
+         */
+        DOZE = 2,
+    };
+
+    //Bug: Move this enum to LLNDK after we decide where to put graphic types.
+    /**
+     * PerFrameMetadataKey
+     *
+     * A set of PerFrameMetadataKey pertains specifically to blob-formatted
+     * metadata (as opposed to float-valued metadata).
+     * The list of keys that represent blobs are:
+     * 1. HDR10_PLUS_SEI
+     */
+    enum PerFrameMetadataKey : @2.2::IComposerClient.PerFrameMetadataKey {
+        /**HDR10+ metadata
+         * Specifies a metadata blob adhering to
+         * the ST2094-40 SEI message spec, Version 1.0
+         */
+        HDR10_PLUS_SEI,
+    };
+
+    /**
+     * PerFrameMetadata
+     * This struct encapsulates float-valued
+     * metadata - key must not be in the list
+     * of keys representing blob-formatted metadata
+     * (see PerFrameMetadataKey)
+     */
+    struct PerFrameMetadata {
+        PerFrameMetadataKey key;
+        float value;
+    };
+
+    /**
+     * PerFrameMetadataBlob
+     * This struct encapsulates blob
+     * metadata - key must be one of the list of keys
+     * associated with blob-type metadata key
+     * and the blob must adhere to the format specified by
+     * that key (See PerFrameMetadataKey).
+     */
+    struct PerFrameMetadataBlob {
+        PerFrameMetadataKey key;
+        vec<uint8_t> blob;
+    };
+
+    enum Command : @2.2::IComposerClient.Command {
+        /**
+         * SET_LAYER_COLOR_TRANSFORM has this pseudo prototype
+         *
+         *   setLayerColorTransform(float[16] matrix);
+         *
+         * This command has the following binary layout in bytes:
+         *
+         *     0 - 16 * 4: matrix
+         *
+         * Sets a matrix for color transform which will be applied on this layer
+         * before composition.
+         *
+         * If the device is not capable of apply the matrix on this layer, it must force
+         * this layer to client composition during VALIDATE_DISPLAY.
+         *
+         * The matrix provided is an affine color transformation of the following
+         * form:
+         *
+         * |r.r r.g r.b 0|
+         * |g.r g.g g.b 0|
+         * |b.r b.g b.b 0|
+         * |Tr  Tg  Tb  1|
+         *
+         * This matrix must be provided in row-major form:
+         *
+         * {r.r, r.g, r.b, 0, g.r, ...}.
+         *
+         * Given a matrix of this form and an input color [R_in, G_in, B_in],
+         * the input color must first be converted to linear space
+         * [R_linear, G_linear, B_linear], then the output linear color
+         * [R_out_linear, G_out_linear, B_out_linear] will be:
+         *
+         * R_out_linear = R_linear * r.r + G_linear * g.r + B_linear * b.r + Tr
+         * G_out_linear = R_linear * r.g + G_linear * g.g + B_linear * b.g + Tg
+         * B_out_linear = R_linear * r.b + G_linear * g.b + B_linear * b.b + Tb
+         *
+         * [R_out_linear, G_out_linear, B_out_linear] must then be converted to
+         * gamma space: [R_out, G_out, B_out] before blending.
+         *
+         * @param matrix is a 4x4 transform matrix (16 floats) as described above.
+         */
+        SET_LAYER_COLOR_TRANSFORM = 0x40d << @2.1::IComposerClient.Command:OPCODE_SHIFT,
+
+        /* SET_LAYER_PER_FRAME_METADATA_BLOBS has this pseudo prototype
+         *
+         *   setLayerPerFrameMetadataBlobs(Display display, Layer layer,
+         *                                   vec<PerFrameMetadataBlob> metadata);
+         *
+         *   This command sends metadata that may be used for tone-mapping the
+         *   associated layer.  The metadata structure follows a {key, blob}
+         *   format (see the PerFrameMetadataBlob struct).  All keys must be
+         *   returned by a prior call to getPerFrameMetadataKeys and must
+         *   be part of the list of keys associated with blob-type metadata
+         *   (see PerFrameMetadataKey).
+         *
+         *   This method may be called every frame.
+         */
+        SET_LAYER_PER_FRAME_METADATA_BLOBS = 0x304 << @2.1::IComposerClient.Command:OPCODE_SHIFT,
+    };
+
+    /**
+     * Returns the port and data that describe a physical display. The port is
+     * a unique number that identifies a physical connector (e.g. eDP, HDMI)
+     * for display output. The data blob is parsed to determine its format,
+     * typically EDID 1.3 as specified in VESA E-EDID Standard Release A
+     * Revision 1.
+     *
+     * @param display is the display to query.
+     * @return error is NONE upon success. Otherwise,
+     *         BAD_DISPLAY when an invalid display handle was passed in.
+     *         UNSUPPORTED when identification data is unavailable.
+     * @return port is the connector to which the display is connected.
+     * @return data is the EDID 1.3 blob identifying the display.
+     */
+    @callflow(next="*")
+    getDisplayIdentificationData(Display display)
+               generates (Error error,
+                          uint8_t port,
+                          vec<uint8_t> data);
+    /**
+     * getReadbackBufferAttributes_2_3
+     * Returns the format which should be used when allocating a buffer for use by
+     * device readback as well as the dataspace in which its contents must be
+     * interpreted.
+     *
+     * The width and height of this buffer must be those of the currently-active
+     * display configuration, and the usage flags must consist of the following:
+     *   BufferUsage::CPU_READ | BufferUsage::GPU_TEXTURE |
+     *   BufferUsage::COMPOSER_OUTPUT
+     *
+     * The format and dataspace provided must be sufficient such that if a
+     * correctly-configured buffer is passed into setReadbackBuffer, filled by
+     * the device, and then displayed by the client as a full-screen buffer, the
+     * output of the display remains the same (subject to the note about protected
+     * content in the description of setReadbackBuffer).
+     *
+     * If the active configuration or color mode of this display has changed
+     * since a previous call to this function, it must be called again prior to
+     * setting a readback buffer such that the returned format and dataspace will
+     * be updated accordingly.
+     *
+     * Parameters:
+     * @param display - the display on which to create the layer.
+     *
+     * @return format - the format the client should use when allocating a device
+     *     readback buffer
+     * @return dataspace - the dataspace to use when interpreting the
+     *     contents of a device readback buffer
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     UNSUPPORTED if not supported on underlying HAL
+     *
+     * See also:
+     *   setReadbackBuffer
+     *   getReadbackBufferFence
+     */
+    getReadbackBufferAttributes_2_3(Display display)
+        generates (Error error,
+                   PixelFormat format,
+                   Dataspace dataspace);
+
+    /**
+     * getClientTargetSupport_2_3
+     * Returns whether a client target with the given properties can be
+     * handled by the device.
+     *
+     * This function must return true for a client target with width and
+     * height equal to the active display configuration dimensions,
+     * PixelFormat::RGBA_8888, and Dataspace::UNKNOWN. It is not required to
+     * return true for any other configuration.
+     *
+     * @param display is the display to query.
+     * @param width is the client target width in pixels.
+     * @param height is the client target height in pixels.
+     * @param format is the client target format.
+     * @param dataspace is the client target dataspace, as described in
+     *     setLayerDataspace.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     UNSUPPORTED when the given configuration is not supported.
+     */
+    @callflow(next="*")
+    getClientTargetSupport_2_3(Display display,
+                               uint32_t width,
+                               uint32_t height,
+                               PixelFormat format,
+                               Dataspace dataspace)
+                    generates (Error error);
+
+    enum FormatColorComponent : uint8_t {
+        /* The first component  (eg, for RGBA_8888, this is R) */
+        FORMAT_COMPONENT_0 = 1 << 0,
+        /* The second component (eg, for RGBA_8888, this is G) */
+        FORMAT_COMPONENT_1 = 1 << 1,
+        /* The third component  (eg, for RGBA_8888, this is B) */
+        FORMAT_COMPONENT_2 = 1 << 2,
+        /* The fourth component (eg, for RGBA_8888, this is A) */
+        FORMAT_COMPONENT_3 = 1 << 3,
+    };
+
+    /**
+     * Query for what types of color sampling the hardware supports.
+     *
+     * @param  display        is the display where the samples are collected.
+     * @return error          is NONE upon success. Otherwise,
+     *                        BAD_DISPLAY when an invalid display was passed in, or
+     *                        UNSUPPORTED when there is no efficient way to sample.
+     * @return format         The format of the sampled pixels.
+     * @return dataspace      The dataspace of the sampled pixels.
+     * @return componentMask  The mask of which components can be sampled.
+     */
+    getDisplayedContentSamplingAttributes(Display display)
+               generates (Error error,
+                          PixelFormat format,
+                          Dataspace dataspace,
+                          bitfield<FormatColorComponent> componentMask);
+
+    /** DisplayedContentSampling values passed to setDisplayedContentSamplingEnabled. */
+    enum DisplayedContentSampling : int32_t {
+        INVALID = 0,
+
+        /** Enable content sampling. */
+        ENABLE = 1,
+
+        /** Disable content sampling. */
+        DISABLE = 2,
+    };
+
+    /**
+     * Enables or disables the collection of color content statistics
+     * on this display.
+     *
+     * Sampling occurs on the contents of the final composition on this display
+     * (i.e., the contents presented on screen). Samples should be collected after all
+     * color transforms have been applied.
+     *
+     * Sampling support is optional, and is set to DISABLE by default.
+     * On each call to ENABLE, all collected statistics must be reset.
+     *
+     * Sample data can be queried via getDisplayedContentSample().
+     *
+     * @param display        is the display to which the sampling mode is set.
+     * @param enabled        indicates whether to enable or disable sampling.
+     * @param componentMask  The mask of which components should be sampled. If zero, all supported
+     *                       components are to be enabled.
+     * @param maxFrames      is the maximum number of frames that should be stored before discard.
+     *                       The sample represents the most-recently posted frames.
+     * @return error      is NONE upon success. Otherwise,
+     *                    BAD_DISPLAY when an invalid display handle was passed in,
+     *                    BAD_PARAMETER when enabled was an invalid value, or
+     *                    NO_RESOURCES when the requested ringbuffer size via maxFrames was
+     *                                 not available.
+     *                    UNSUPPORTED when there is no efficient way to sample.
+     */
+    setDisplayedContentSamplingEnabled(
+        Display display, DisplayedContentSampling enable,
+        bitfield<FormatColorComponent> componentMask, uint64_t maxFrames)
+        generates (Error error);
+
+    /**
+     * Collects the results of display content color sampling for display.
+     *
+     * Collection of data can occur whether the sampling is in ENABLE or
+     * DISABLE state.
+     *
+     * @param  display     is the display to which the sampling is collected.
+     * @param  maxFrames   is the maximum number of frames that should be represented in the sample.
+     *                     The sample represents the most-recently posted frames.
+     *                     If maxFrames is 0, all frames are to be represented by the sample.
+     * @param  timestamp   is the timestamp after which any frames were posted that should be
+     *                     included in the sample. Timestamp is CLOCK_MONOTONIC.
+     *                     If timestamp is 0, do not filter from the sample by time.
+     * @return error       is NONE upon success. Otherwise,
+     *                     BAD_DISPLAY   when an invalid display was passed in, or
+     *                     UNSUPPORTED   when there is no efficient way to sample, or
+     *                     BAD_PARAMETER when the component is not supported by the hardware.
+     * @return frameCount  The number of frames represented by this sample.
+     * @return sampleComponent0 is a histogram counting how many times a pixel of a given value
+     *                     was displayed onscreen for FORMAT_COMPONENT_0.
+     *                     The buckets of the histogram are evenly weighted, the number of buckets
+     *                     is device specific.
+     *                     eg, for RGBA_8888, if sampleComponent0 is {10, 6, 4, 1} this means that
+     *                     10 red pixels were displayed onscreen in range 0x00->0x3F, 6 red pixels
+     *                     were displayed onscreen in range 0x40->0x7F, etc.
+     * @return sampleComponent1 is the same sample definition as sampleComponent0,
+     *                     but for FORMAT_COMPONENT_1.
+     * @return sampleComponent2 is the same sample definition as sampleComponent0,
+     *                     but for FORMAT_COMPONENT_2.
+     * @return sampleComponent3 is the same sample definition as sampleComponent0,
+     *                     but for FORMAT_COMPONENT_3.
+     */
+    getDisplayedContentSample(Display display, uint64_t maxFrames, uint64_t timestamp)
+               generates (Error error,
+                          uint64_t frameCount,
+                          vec<uint64_t> sampleComponent0,
+                          vec<uint64_t> sampleComponent1,
+                          vec<uint64_t> sampleComponent2,
+                          vec<uint64_t> sampleComponent3);
+
+    /**
+     * Executes commands from the input command message queue. Return values
+     * generated by the input commands are written to the output command
+     * message queue in the form of value commands.
+     *
+     * @param inLength is the length of input commands.
+     * @param inHandles is an array of handles referenced by the input
+     *        commands.
+     * @return error is NONE upon success. Otherwise,
+     *         BAD_PARAMETER when inLength is not equal to the length of
+     *                       commands in the input command message queue.
+     *         NO_RESOURCES when the output command message queue was not
+     *                      properly drained.
+     * @param outQueueChanged indicates whether the output command message
+     *        queue has changed.
+     * @param outLength is the length of output commands.
+     * @param outHandles is an array of handles referenced by the output
+     *        commands.
+     */
+    executeCommands_2_3(uint32_t inLength,
+                        vec<handle> inHandles)
+             generates (Error error,
+                        bool outQueueChanged,
+                        uint32_t outLength,
+                        vec<handle> outHandles);
+
+    /**
+     * Returns the render intents supported by the specified display and color
+     * mode.
+     *
+     * For SDR color modes, RenderIntent::COLORIMETRIC must be supported. For
+     * HDR color modes, RenderIntent::TONE_MAP_COLORIMETRIC must be supported.
+     *
+     * @param display is the display to query.
+     * @param mode is the color mode to query.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     BAD_PARAMETER when an invalid color mode was passed in.
+     * @return intents is an array of render intents.
+     */
+    getRenderIntents_2_3(Display display, ColorMode mode)
+          generates (Error error,
+                     vec<RenderIntent> intents);
+
+    /**
+     * Returns the color modes supported on this display.
+     *
+     * All devices must support at least ColorMode::NATIVE.
+     *
+     * @param display is the display to query.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     * @return modes is an array of color modes.
+     */
+    getColorModes_2_3(Display display)
+           generates (Error error,
+                      vec<ColorMode> modes);
+
+    /**
+     * Sets the color mode and render intent of the given display.
+     *
+     * The color mode and render intent change must take effect on next
+     * presentDisplay.
+     *
+     * All devices must support at least ColorMode::NATIVE and
+     * RenderIntent::COLORIMETRIC, and displays are assumed to be in this mode
+     * upon hotplug.
+     *
+     * @param display is the display to which the color mode is set.
+     * @param mode is the color mode to set to.
+     * @param intent is the render intent to set to.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     BAD_PARAMETER when mode or intent is invalid
+     *     UNSUPPORTED when mode or intent is not supported on this
+     *         display.
+     */
+    setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent)
+          generates (Error error);
+
+    /**
+     * Provides a list of supported capabilities (as described in the
+     * definition of DisplayCapability above). This list must not change after
+     * initialization.
+     *
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     * @return capabilities is a list of supported capabilities.
+     */
+    getDisplayCapabilities(Display display)
+              generates (Error error,
+                         vec<DisplayCapability> capabilities);
+
+    /**
+     * Returns the PerFrameMetadataKeys that are supported by this device.
+     *
+     * @param display is the display on which to create the layer.
+     * @return keys is the vector of PerFrameMetadataKey keys that are
+     *        supported by this device.
+     * @return error is NONE upon success. Otherwise,
+     *         UNSUPPORTED if not supported on underlying HAL
+     */
+    getPerFrameMetadataKeys_2_3(Display display)
+          generates (Error error,
+                     vec<PerFrameMetadataKey> keys);
+
+    /**
+     * Returns the high dynamic range (HDR) capabilities of the given display,
+     * which are invariant with regard to the active configuration.
+     *
+     * Displays which are not HDR-capable must return no types.
+     *
+     * @param display is the display to query.
+     * @return error is NONE upon success. Otherwise,
+     *         BAD_DISPLAY when an invalid display handle was passed in.
+     * @return types is an array of HDR types, may have 0 elements if the
+     *         display is not HDR-capable.
+     * @return maxLuminance is the desired content maximum luminance for this
+     *         display in cd/m^2.
+     * @return maxAverageLuminance - the desired content maximum frame-average
+     *         luminance for this display in cd/m^2.
+     * @return minLuminance is the desired content minimum luminance for this
+     *         display in cd/m^2.
+     */
+    @callflow(next="*")
+    getHdrCapabilities_2_3(Display display)
+            generates (Error error,
+                       vec<Hdr> types,
+                       float maxLuminance,
+                       float maxAverageLuminance,
+                       float minLuminance);
+};
diff --git a/graphics/composer/2.3/default/Android.bp b/graphics/composer/2.3/default/Android.bp
new file mode 100644
index 0000000..07afd6c
--- /dev/null
+++ b/graphics/composer/2.3/default/Android.bp
@@ -0,0 +1,46 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_binary {
+    name: "android.hardware.graphics.composer@2.3-service",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    relative_install_path: "hw",
+    srcs: ["service.cpp"],
+    init_rc: ["android.hardware.graphics.composer@2.3-service.rc"],
+    header_libs: [
+        "android.hardware.graphics.composer@2.3-passthrough",
+    ],
+    shared_libs: [
+        "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.composer@2.2",
+        "android.hardware.graphics.composer@2.3",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@3.0",
+        "libbase",
+        "libbinder",
+        "libcutils",
+        "libfmq",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "libhwc2on1adapter",
+        "libhwc2onfbadapter",
+        "liblog",
+        "libsync",
+        "libutils",
+    ],
+}
diff --git a/graphics/composer/2.3/default/OWNERS b/graphics/composer/2.3/default/OWNERS
new file mode 100644
index 0000000..820ebe6
--- /dev/null
+++ b/graphics/composer/2.3/default/OWNERS
@@ -0,0 +1,5 @@
+# Graphics team
+jessehall@google.com
+lpy@google.com
+stoza@google.com
+vhau@google.com
diff --git a/graphics/composer/2.3/default/android.hardware.graphics.composer@2.3-service.rc b/graphics/composer/2.3/default/android.hardware.graphics.composer@2.3-service.rc
new file mode 100644
index 0000000..08e32d8
--- /dev/null
+++ b/graphics/composer/2.3/default/android.hardware.graphics.composer@2.3-service.rc
@@ -0,0 +1,6 @@
+service vendor.hwcomposer-2-3 /vendor/bin/hw/android.hardware.graphics.composer@2.3-service
+    class hal animation
+    user system
+    group graphics drmrpc
+    capabilities SYS_NICE
+    onrestart restart surfaceflinger
diff --git a/graphics/composer/2.3/default/service.cpp b/graphics/composer/2.3/default/service.cpp
new file mode 100644
index 0000000..347d8be
--- /dev/null
+++ b/graphics/composer/2.3/default/service.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sched.h>
+
+#include <android/hardware/graphics/composer/2.3/IComposer.h>
+#include <binder/ProcessState.h>
+#include <composer-passthrough/2.3/HwcLoader.h>
+#include <hidl/HidlTransportSupport.h>
+
+using android::hardware::graphics::composer::V2_3::IComposer;
+using android::hardware::graphics::composer::V2_3::passthrough::HwcLoader;
+
+int main() {
+    // the conventional HAL might start binder services
+    android::ProcessState::initWithDriver("/dev/vndbinder");
+    android::ProcessState::self()->setThreadPoolMaxThreadCount(4);
+    android::ProcessState::self()->startThreadPool();
+
+    // same as SF main thread
+    struct sched_param param = {0};
+    param.sched_priority = 2;
+    if (sched_setscheduler(0, SCHED_FIFO | SCHED_RESET_ON_FORK, &param) != 0) {
+        ALOGE("Couldn't set SCHED_FIFO: %d", errno);
+    }
+
+    android::hardware::configureRpcThreadpool(4, true /* will join */);
+
+    android::sp<IComposer> composer = HwcLoader::load();
+    if (composer == nullptr) {
+        return 1;
+    }
+    if (composer->registerAsService() != android::NO_ERROR) {
+        ALOGE("failed to register service");
+        return 1;
+    }
+
+    android::hardware::joinRpcThreadpool();
+
+    ALOGE("service is terminating");
+    return 1;
+}
diff --git a/graphics/composer/2.3/utils/OWNERS b/graphics/composer/2.3/utils/OWNERS
new file mode 100644
index 0000000..b3ea6be
--- /dev/null
+++ b/graphics/composer/2.3/utils/OWNERS
@@ -0,0 +1,8 @@
+# Graphics team
+lpy@google.com
+stoza@google.com
+vhau@google.com
+
+# VTS team
+yim@google.com
+zhuoyao@google.com
diff --git a/graphics/composer/2.3/utils/command-buffer/Android.bp b/graphics/composer/2.3/utils/command-buffer/Android.bp
new file mode 100644
index 0000000..c48fe7a
--- /dev/null
+++ b/graphics/composer/2.3/utils/command-buffer/Android.bp
@@ -0,0 +1,15 @@
+cc_library_headers {
+    name: "android.hardware.graphics.composer@2.3-command-buffer",
+    defaults: ["hidl_defaults"],
+    vendor_available: true,
+    shared_libs: [
+        "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.composer@2.2",
+        "android.hardware.graphics.composer@2.3",
+    ],
+    header_libs: [
+        "android.hardware.graphics.composer@2.1-command-buffer",
+        "android.hardware.graphics.composer@2.2-command-buffer",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h b/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h
new file mode 100644
index 0000000..11863fa
--- /dev/null
+++ b/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warn "ComposerCommandBuffer.h included without LOG_TAG"
+#endif
+
+#undef LOG_NDEBUG
+#define LOG_NDEBUG 0
+
+#include <android/hardware/graphics/composer/2.3/IComposer.h>
+#include <android/hardware/graphics/composer/2.3/IComposerClient.h>
+#include <composer-command-buffer/2.2/ComposerCommandBuffer.h>
+#include <limits>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+
+using android::hardware::MessageQueue;
+using android::hardware::graphics::common::V1_2::Dataspace;
+using android::hardware::graphics::composer::V2_1::Error;
+using android::hardware::graphics::composer::V2_1::IComposerCallback;
+using android::hardware::graphics::composer::V2_1::Layer;
+using android::hardware::graphics::composer::V2_3::IComposerClient;
+
+// This class helps build a command queue.  Note that all sizes/lengths are in
+// units of uint32_t's.
+class CommandWriterBase : public V2_2::CommandWriterBase {
+   public:
+    void setLayerPerFrameMetadata(const hidl_vec<IComposerClient::PerFrameMetadata>& metadataVec) {
+        beginCommand_2_3(IComposerClient::Command::SET_LAYER_PER_FRAME_METADATA,
+                         metadataVec.size() * 2);
+        for (const auto& metadata : metadataVec) {
+            writeSigned(static_cast<int32_t>(metadata.key));
+            writeFloat(metadata.value);
+        }
+        endCommand();
+    }
+
+    void setLayerDataspace(Dataspace dataspace) {
+        setLayerDataspaceInternal(static_cast<int32_t>(dataspace));
+    }
+
+    void setClientTarget(uint32_t slot, const native_handle_t* target, int acquireFence,
+                         Dataspace dataspace, const std::vector<IComposerClient::Rect>& damage) {
+        setClientTargetInternal(slot, target, acquireFence, static_cast<int32_t>(dataspace),
+                                damage);
+    }
+
+    CommandWriterBase(uint32_t initialMaxSize) : V2_2::CommandWriterBase(initialMaxSize) {}
+
+    static constexpr uint16_t kSetLayerColorTransformLength = 16;
+    void setLayerColorTransform(const float* matrix) {
+        beginCommand_2_3(IComposerClient::Command::SET_LAYER_COLOR_TRANSFORM,
+                         kSetLayerColorTransformLength);
+        for (int i = 0; i < 16; i++) {
+            writeFloat(matrix[i]);
+        }
+        endCommand();
+    }
+
+    void setLayerPerFrameMetadataBlobs(
+        const hidl_vec<IComposerClient::PerFrameMetadataBlob>& metadata) {
+        size_t commandLength = 0;
+
+        if (metadata.size() > std::numeric_limits<uint32_t>::max()) {
+            LOG_FATAL("too many metadata blobs - dynamic metadata size is too large");
+            return;
+        }
+
+        // number of blobs
+        commandLength += metadata.size();
+
+        for (auto metadataBlob : metadata) {
+            commandLength += sizeof(int32_t);  // key of metadata blob
+            commandLength += 1;                // size information of metadata blob
+
+            // metadata content size
+            size_t metadataSize = metadataBlob.blob.size() / sizeof(uint32_t);
+            commandLength += metadataSize;
+            commandLength +=
+                (metadataBlob.blob.size() - (metadataSize * sizeof(uint32_t)) > 0) ? 1 : 0;
+        }
+
+        if (commandLength > std::numeric_limits<uint16_t>::max()) {
+            LOG_FATAL("dynamic metadata size is too large");
+            return;
+        }
+
+        // Blobs are written as:
+        // {numElements, key1, size1, blob1, key2, size2, blob2, key3, size3...}
+        uint16_t length = static_cast<uint16_t>(commandLength);
+        beginCommand_2_3(IComposerClient::Command::SET_LAYER_PER_FRAME_METADATA_BLOBS, length);
+        write(static_cast<uint32_t>(metadata.size()));
+        for (auto metadataBlob : metadata) {
+            writeSigned(static_cast<int32_t>(metadataBlob.key));
+            write(static_cast<uint32_t>(metadataBlob.blob.size()));
+            writeBlob(static_cast<uint32_t>(metadataBlob.blob.size()), metadataBlob.blob.data());
+        }
+        endCommand();
+    }
+
+   protected:
+    void beginCommand_2_3(IComposerClient::Command command, uint16_t length) {
+        V2_2::CommandWriterBase::beginCommand_2_2(
+            static_cast<V2_2::IComposerClient::Command>(static_cast<int32_t>(command)), length);
+    }
+
+    void writeBlob(uint32_t length, const unsigned char* blob) {
+        memcpy(&mData[mDataWritten], blob, length);
+        uint32_t numElements = length / 4;
+        mDataWritten += numElements;
+        mDataWritten += (length - (numElements * 4) > 0) ? 1 : 0;
+    }
+};
+
+// This class helps parse a command queue.  Note that all sizes/lengths are in
+// units of uint32_t's.
+class CommandReaderBase : public V2_2::CommandReaderBase {
+   public:
+    CommandReaderBase() : V2_2::CommandReaderBase(){};
+};
+
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/hal/Android.bp b/graphics/composer/2.3/utils/hal/Android.bp
new file mode 100644
index 0000000..3ee9300
--- /dev/null
+++ b/graphics/composer/2.3/utils/hal/Android.bp
@@ -0,0 +1,36 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_headers {
+    name: "android.hardware.graphics.composer@2.3-hal",
+    defaults: ["hidl_defaults"],
+    vendor_available: true,
+    shared_libs: [
+        "android.hardware.graphics.composer@2.3",
+    ],
+    export_shared_lib_headers: [
+        "android.hardware.graphics.composer@2.3",
+    ],
+    header_libs: [
+        "android.hardware.graphics.composer@2.2-hal",
+        "android.hardware.graphics.composer@2.3-command-buffer",
+    ],
+    export_header_lib_headers: [
+        "android.hardware.graphics.composer@2.2-hal",
+        "android.hardware.graphics.composer@2.3-command-buffer",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/Composer.h b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/Composer.h
new file mode 100644
index 0000000..8e11a5a
--- /dev/null
+++ b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/Composer.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "Composer.h included without LOG_TAG"
+#endif
+
+#include <android/hardware/graphics/composer/2.3/IComposer.h>
+#include <composer-hal/2.2/Composer.h>
+#include <composer-hal/2.3/ComposerClient.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace hal {
+
+namespace detail {
+
+// ComposerImpl implements V2_*::IComposer on top of V2_*::ComposerHal
+template <typename Interface, typename Hal>
+class ComposerImpl : public V2_2::hal::detail::ComposerImpl<Interface, Hal> {
+   public:
+    static std::unique_ptr<ComposerImpl> create(std::unique_ptr<Hal> hal) {
+        return std::make_unique<ComposerImpl>(std::move(hal));
+    }
+
+    explicit ComposerImpl(std::unique_ptr<Hal> hal) : BaseType2_2(std::move(hal)) {}
+
+    // IComposer 2.3 interface
+
+    Return<void> createClient_2_3(IComposer::createClient_2_3_cb hidl_cb) override {
+        std::unique_lock<std::mutex> lock(mClientMutex);
+        if (!waitForClientDestroyedLocked(lock)) {
+            hidl_cb(Error::NO_RESOURCES, nullptr);
+            return Void();
+        }
+
+        sp<ComposerClient> client = ComposerClient::create(mHal.get()).release();
+        if (!client) {
+            hidl_cb(Error::NO_RESOURCES, nullptr);
+            return Void();
+        }
+
+        auto clientDestroyed = [this]() { onClientDestroyed(); };
+        client->setOnClientDestroyed(clientDestroyed);
+
+        mClient = client;
+        hidl_cb(Error::NONE, client);
+        return Void();
+    }
+
+   private:
+    using BaseType2_2 = V2_2::hal::detail::ComposerImpl<Interface, Hal>;
+    using BaseType2_1 = V2_1::hal::detail::ComposerImpl<Interface, Hal>;
+
+    using BaseType2_1::mClient;
+    using BaseType2_1::mClientMutex;
+    using BaseType2_1::mHal;
+    using BaseType2_1::onClientDestroyed;
+    using BaseType2_1::waitForClientDestroyedLocked;
+};
+
+}  // namespace detail
+
+using Composer = detail::ComposerImpl<IComposer, ComposerHal>;
+
+}  // namespace hal
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h
new file mode 100644
index 0000000..a272e72
--- /dev/null
+++ b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "ComposerClient.h included without LOG_TAG"
+#endif
+
+#include <android/hardware/graphics/composer/2.3/IComposerClient.h>
+#include <composer-hal/2.2/ComposerResources.h>
+#include <composer-hal/2.3/ComposerClient.h>
+#include <composer-hal/2.3/ComposerCommandEngine.h>
+#include <composer-hal/2.3/ComposerHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace hal {
+
+namespace detail {
+
+// ComposerClientImpl implements V2_*::IComposerClient on top of V2_*::ComposerHal
+template <typename Interface, typename Hal>
+class ComposerClientImpl : public V2_2::hal::detail::ComposerClientImpl<Interface, Hal> {
+   public:
+    Return<void> getPerFrameMetadataKeys_2_3(
+        Display display, IComposerClient::getPerFrameMetadataKeys_2_3_cb hidl_cb) override {
+        std::vector<IComposerClient::PerFrameMetadataKey> keys;
+        Error error = mHal->getPerFrameMetadataKeys_2_3(display, &keys);
+        hidl_cb(error, keys);
+        return Void();
+    }
+
+    Return<Error> setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) override {
+        return mHal->setColorMode_2_3(display, mode, intent);
+    }
+
+    Return<void> getRenderIntents_2_3(Display display, ColorMode mode,
+                                      IComposerClient::getRenderIntents_2_3_cb hidl_cb) override {
+        std::vector<RenderIntent> intents;
+        Error err = mHal->getRenderIntents_2_3(display, mode, &intents);
+        hidl_cb(err, intents);
+        return Void();
+    }
+
+    Return<void> getColorModes_2_3(Display display,
+                                   IComposerClient::getColorModes_2_3_cb hidl_cb) override {
+        hidl_vec<ColorMode> modes;
+        Error err = mHal->getColorModes_2_3(display, &modes);
+        hidl_cb(err, modes);
+        return Void();
+    }
+
+    Return<void> getReadbackBufferAttributes_2_3(
+        Display display, IComposerClient::getReadbackBufferAttributes_2_3_cb hidl_cb) override {
+        PixelFormat format = PixelFormat::RGB_888;
+        Dataspace dataspace = Dataspace::UNKNOWN;
+        Error error = mHal->getReadbackBufferAttributes_2_3(display, &format, &dataspace);
+        hidl_cb(error, format, dataspace);
+        return Void();
+    }
+
+    Return<void> getHdrCapabilities_2_3(
+        Display display, IComposerClient::getHdrCapabilities_2_3_cb hidl_cb) override {
+        hidl_vec<Hdr> types;
+        float max_lumi = 0.0f;
+        float max_avg_lumi = 0.0f;
+        float min_lumi = 0.0f;
+        Error err =
+            mHal->getHdrCapabilities_2_3(display, &types, &max_lumi, &max_avg_lumi, &min_lumi);
+        hidl_cb(err, types, max_lumi, max_avg_lumi, min_lumi);
+        return Void();
+    }
+
+    Return<Error> getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                             PixelFormat format, Dataspace dataspace) override {
+        Error err = mHal->getClientTargetSupport_2_3(display, width, height, format, dataspace);
+        return err;
+    }
+
+    Return<void> getDisplayCapabilities(
+        Display display, IComposerClient::getDisplayCapabilities_cb hidl_cb) override {
+        hidl_vec<IComposerClient::DisplayCapability> capabilities;
+        Error error = mHal->getDisplayCapabilities(display, &capabilities);
+        hidl_cb(error, capabilities);
+        return Void();
+    }
+
+    static std::unique_ptr<ComposerClientImpl> create(Hal* hal) {
+        auto client = std::make_unique<ComposerClientImpl>(hal);
+        return client->init() ? std::move(client) : nullptr;
+    }
+
+    ComposerClientImpl(Hal* hal) : BaseType2_2(hal) {}
+
+    // IComposerClient 2.3 interface
+
+    Return<void> getDisplayIdentificationData(
+        Display display, IComposerClient::getDisplayIdentificationData_cb hidl_cb) override {
+        uint8_t port = 0;
+        std::vector<uint8_t> data;
+        Error error = mHal->getDisplayIdentificationData(display, &port, &data);
+        hidl_cb(error, port, data);
+        return Void();
+    }
+
+    Return<void> getDisplayedContentSamplingAttributes(
+        uint64_t display,
+        IComposerClient::getDisplayedContentSamplingAttributes_cb hidl_cb) override {
+        PixelFormat format;
+        common::V1_2::Dataspace dataspace;
+        hidl_bitfield<IComposerClient::FormatColorComponent> componentMask;
+        Error error =
+            mHal->getDisplayedContentSamplingAttributes(display, format, dataspace, componentMask);
+        hidl_cb(error, format, dataspace, componentMask);
+        return Void();
+    }
+
+    Return<Error> setDisplayedContentSamplingEnabled(
+        uint64_t display, IComposerClient::DisplayedContentSampling enable,
+        hidl_bitfield<IComposerClient::FormatColorComponent> componentMask,
+        uint64_t maxFrames) override {
+        return mHal->setDisplayedContentSamplingEnabled(display, enable, componentMask, maxFrames);
+    }
+
+    Return<void> getDisplayedContentSample(
+        uint64_t display, uint64_t maxFrames, uint64_t timestamp,
+        IComposerClient::getDisplayedContentSample_cb hidl_cb) override {
+        uint64_t frameCount;
+        hidl_vec<uint64_t> sampleComponent0;
+        hidl_vec<uint64_t> sampleComponent1;
+        hidl_vec<uint64_t> sampleComponent2;
+        hidl_vec<uint64_t> sampleComponent3;
+
+        Error error = mHal->getDisplayedContentSample(display, maxFrames, timestamp, frameCount,
+                                                      sampleComponent0, sampleComponent1,
+                                                      sampleComponent2, sampleComponent3);
+        hidl_cb(error, frameCount, sampleComponent0, sampleComponent1, sampleComponent2,
+                sampleComponent3);
+        return Void();
+    }
+
+    Return<void> executeCommands_2_3(uint32_t inLength, const hidl_vec<hidl_handle>& inHandles,
+                                     IComposerClient::executeCommands_2_2_cb hidl_cb) override {
+        std::lock_guard<std::mutex> lock(mCommandEngineMutex);
+        bool outChanged = false;
+        uint32_t outLength = 0;
+        hidl_vec<hidl_handle> outHandles;
+        Error error =
+            mCommandEngine->execute(inLength, inHandles, &outChanged, &outLength, &outHandles);
+
+        hidl_cb(error, outChanged, outLength, outHandles);
+
+        mCommandEngine->reset();
+
+        return Void();
+    }
+
+   protected:
+    std::unique_ptr<V2_1::hal::ComposerCommandEngine> createCommandEngine() override {
+        return std::make_unique<ComposerCommandEngine>(
+            mHal, static_cast<V2_2::hal::ComposerResources*>(mResources.get()));
+    }
+
+   private:
+    using BaseType2_2 = V2_2::hal::detail::ComposerClientImpl<Interface, Hal>;
+    using BaseType2_1 = V2_1::hal::detail::ComposerClientImpl<Interface, Hal>;
+    using BaseType2_1::mCommandEngine;
+    using BaseType2_1::mCommandEngineMutex;
+    using BaseType2_1::mHal;
+    using BaseType2_1::mResources;
+};
+
+}  // namespace detail
+
+using ComposerClient = detail::ComposerClientImpl<IComposerClient, ComposerHal>;
+
+}  // namespace hal
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerCommandEngine.h b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerCommandEngine.h
new file mode 100644
index 0000000..1a40d96
--- /dev/null
+++ b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerCommandEngine.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "ComposerCommandEngine.h included without LOG_TAG"
+#endif
+
+#include <composer-command-buffer/2.3/ComposerCommandBuffer.h>
+#include <composer-hal/2.1/ComposerCommandEngine.h>
+#include <composer-hal/2.2/ComposerCommandEngine.h>
+#include <composer-hal/2.2/ComposerResources.h>
+#include <composer-hal/2.3/ComposerHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace hal {
+
+class ComposerCommandEngine : public V2_2::hal::ComposerCommandEngine {
+   public:
+    ComposerCommandEngine(ComposerHal* hal, V2_2::hal::ComposerResources* resources)
+        : BaseType2_2(hal, resources), mHal(hal) {}
+
+   protected:
+    bool executeCommand(V2_1::IComposerClient::Command command, uint16_t length) override {
+        switch (static_cast<IComposerClient::Command>(command)) {
+            case IComposerClient::Command::SET_LAYER_COLOR_TRANSFORM:
+                return executeSetLayerColorTransform(length);
+            case IComposerClient::Command::SET_LAYER_PER_FRAME_METADATA_BLOBS:
+                return executeSetLayerPerFrameMetadataBlobs(length);
+            default:
+                return BaseType2_2::executeCommand(command, length);
+        }
+    }
+
+    bool executeSetLayerColorTransform(uint16_t length) {
+        if (length != CommandWriterBase::kSetLayerColorTransformLength) {
+            return false;
+        }
+
+        float matrix[16];
+        for (int i = 0; i < 16; i++) {
+            matrix[i] = readFloat();
+        }
+        auto err = mHal->setLayerColorTransform(mCurrentDisplay, mCurrentLayer, matrix);
+        if (err != Error::NONE) {
+            mWriter.setError(getCommandLoc(), err);
+        }
+
+        return true;
+    }
+
+    bool executeSetLayerPerFrameMetadataBlobs(uint16_t length) {
+        // must have at least one metadata blob
+        // of at least size 1 in queue (i.e {/*numBlobs=*/1, key, size, blob})
+        if (length < 4) {
+            return false;
+        }
+
+        uint32_t numBlobs = read();
+        length--;
+
+        std::vector<IComposerClient::PerFrameMetadataBlob> metadata;
+
+        for (size_t i = 0; i < numBlobs; i++) {
+            IComposerClient::PerFrameMetadataKey key =
+                static_cast<IComposerClient::PerFrameMetadataKey>(readSigned());
+            uint32_t blobSize = read();
+
+            length -= 2;
+
+            if (length * sizeof(uint32_t) < blobSize) {
+                return false;
+            }
+
+            metadata.push_back({key, std::vector<uint8_t>()});
+            IComposerClient::PerFrameMetadataBlob& metadataBlob = metadata.back();
+            metadataBlob.blob.resize(blobSize);
+            readBlob(blobSize, metadataBlob.blob.data());
+        }
+        auto err = mHal->setLayerPerFrameMetadataBlobs(mCurrentDisplay, mCurrentLayer, metadata);
+        if (err != Error::NONE) {
+            mWriter.setError(getCommandLoc(), err);
+        }
+        return true;
+    }
+
+    void readBlob(uint32_t size, void* blob) {
+        memcpy(blob, &mData[mDataRead], size);
+        uint32_t numElements = size / sizeof(uint32_t);
+        mDataRead += numElements;
+        mDataRead += (size - numElements * sizeof(uint32_t) != 0) ? 1 : 0;
+    }
+
+   private:
+    using BaseType2_1 = V2_1::hal::ComposerCommandEngine;
+    using BaseType2_1::mWriter;
+    using BaseType2_2 = V2_2::hal::ComposerCommandEngine;
+
+    ComposerHal* mHal;
+};
+
+}  // namespace hal
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h
new file mode 100644
index 0000000..a0812ad
--- /dev/null
+++ b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <composer-hal/2.2/ComposerHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace hal {
+
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
+using common::V1_2::Hdr;
+using common::V1_2::PixelFormat;
+using V2_1::Display;
+using V2_1::Error;
+using V2_1::Layer;
+
+class ComposerHal : public V2_2::hal::ComposerHal {
+   public:
+    Error getPerFrameMetadataKeys(
+        Display display, std::vector<V2_2::IComposerClient::PerFrameMetadataKey>* outKeys) {
+        return getPerFrameMetadataKeys_2_3(
+            display, reinterpret_cast<std::vector<IComposerClient::PerFrameMetadataKey>*>(outKeys));
+    }
+
+    Error setColorMode_2_2(Display display, common::V1_1::ColorMode mode,
+                           RenderIntent intent) override {
+        return setColorMode_2_3(display, static_cast<ColorMode>(mode), intent);
+    }
+
+    Error getColorModes_2_2(Display display, hidl_vec<common::V1_1::ColorMode>* outModes) override {
+        return getColorModes_2_3(display, reinterpret_cast<hidl_vec<ColorMode>*>(outModes));
+    }
+
+    Error getClientTargetSupport_2_2(Display display, uint32_t width, uint32_t height,
+                                     common::V1_1::PixelFormat format,
+                                     common::V1_1::Dataspace dataspace) override {
+        return getClientTargetSupport_2_3(display, width, height, static_cast<PixelFormat>(format),
+                                          static_cast<Dataspace>(dataspace));
+    }
+
+    Error getReadbackBufferAttributes(Display display, common::V1_1::PixelFormat* outFormat,
+                                      common::V1_1::Dataspace* outDataspace) override {
+        return getReadbackBufferAttributes_2_3(display, reinterpret_cast<PixelFormat*>(outFormat),
+                                               reinterpret_cast<Dataspace*>(outDataspace));
+    }
+
+    Error getHdrCapabilities(Display display, hidl_vec<common::V1_0::Hdr>* outTypes,
+                             float* outMaxLuminance, float* outMaxAverageLuminance,
+                             float* outMinLuminance) override {
+        return getHdrCapabilities_2_3(display, reinterpret_cast<hidl_vec<Hdr>*>(outTypes),
+                                      outMaxLuminance, outMaxAverageLuminance, outMinLuminance);
+    }
+
+    Error setLayerPerFrameMetadata(
+        Display display, Layer layer,
+        const std::vector<V2_2::IComposerClient::PerFrameMetadata>& metadata) override {
+        return setLayerPerFrameMetadata_2_3(
+            display, layer,
+            reinterpret_cast<const std::vector<IComposerClient::PerFrameMetadata>&>(metadata));
+    }
+
+    virtual Error getPerFrameMetadataKeys_2_3(
+        Display display, std::vector<IComposerClient::PerFrameMetadataKey>* outKeys) = 0;
+
+    virtual Error setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) = 0;
+
+    virtual Error getRenderIntents_2_3(Display display, ColorMode mode,
+                                       std::vector<RenderIntent>* outIntents) = 0;
+
+    virtual Error getColorModes_2_3(Display display, hidl_vec<ColorMode>* outModes) = 0;
+
+    virtual Error getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                             PixelFormat format, Dataspace dataspace) = 0;
+    virtual Error getReadbackBufferAttributes_2_3(Display display, PixelFormat* outFormat,
+                                                  Dataspace* outDataspace) = 0;
+    virtual Error getHdrCapabilities_2_3(Display display, hidl_vec<Hdr>* outTypes,
+                                         float* outMaxLuminance, float* outMaxAverageLuminance,
+                                         float* outMinLuminance) = 0;
+    virtual Error setLayerPerFrameMetadata_2_3(
+        Display display, Layer layer,
+        const std::vector<IComposerClient::PerFrameMetadata>& metadata) = 0;
+    virtual Error getDisplayIdentificationData(Display display, uint8_t* outPort,
+                                               std::vector<uint8_t>* outData) = 0;
+    virtual Error setLayerColorTransform(Display display, Layer layer, const float* matrix) = 0;
+    virtual Error getDisplayedContentSamplingAttributes(
+        uint64_t display, PixelFormat& format, Dataspace& dataspace,
+        hidl_bitfield<IComposerClient::FormatColorComponent>& componentMask) = 0;
+    virtual Error setDisplayedContentSamplingEnabled(
+        uint64_t display, IComposerClient::DisplayedContentSampling enable,
+        hidl_bitfield<IComposerClient::FormatColorComponent> componentMask, uint64_t maxFrames) = 0;
+    virtual Error getDisplayedContentSample(uint64_t display, uint64_t maxFrames,
+                                            uint64_t timestamp, uint64_t& frameCount,
+                                            hidl_vec<uint64_t>& sampleComponent0,
+                                            hidl_vec<uint64_t>& sampleComponent1,
+                                            hidl_vec<uint64_t>& sampleComponent2,
+                                            hidl_vec<uint64_t>& sampleComponent3) = 0;
+    virtual Error getDisplayCapabilities(
+        Display display, hidl_vec<IComposerClient::DisplayCapability>* outCapabilities) = 0;
+    virtual Error setLayerPerFrameMetadataBlobs(
+        Display display, Layer layer,
+        std::vector<IComposerClient::PerFrameMetadataBlob>& blobs) = 0;
+};
+
+}  // namespace hal
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/passthrough/Android.bp b/graphics/composer/2.3/utils/passthrough/Android.bp
new file mode 100644
index 0000000..3ae6b16
--- /dev/null
+++ b/graphics/composer/2.3/utils/passthrough/Android.bp
@@ -0,0 +1,30 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_headers {
+    name: "android.hardware.graphics.composer@2.3-passthrough",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    header_libs: [
+        "android.hardware.graphics.composer@2.2-passthrough",
+        "android.hardware.graphics.composer@2.3-hal",
+    ],
+    export_header_lib_headers: [
+        "android.hardware.graphics.composer@2.2-passthrough",
+        "android.hardware.graphics.composer@2.3-hal",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
new file mode 100644
index 0000000..41e333a
--- /dev/null
+++ b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
@@ -0,0 +1,304 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "HwcHal.h included without LOG_TAG"
+#endif
+
+#include <type_traits>
+
+#include <composer-hal/2.3/ComposerHal.h>
+#include <composer-passthrough/2.2/HwcHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace passthrough {
+
+namespace detail {
+
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
+using common::V1_2::Hdr;
+using common::V1_2::PixelFormat;
+using V2_1::Display;
+using V2_1::Error;
+
+// HwcHalImpl implements V2_*::hal::ComposerHal on top of hwcomposer2
+template <typename Hal>
+class HwcHalImpl : public V2_2::passthrough::detail::HwcHalImpl<Hal> {
+   public:
+    Error getPerFrameMetadataKeys_2_3(
+        Display display, std::vector<IComposerClient::PerFrameMetadataKey>* outKeys) override {
+        std::vector<V2_2::IComposerClient::PerFrameMetadataKey> castKeys;
+        Error error = getPerFrameMetadataKeys(display, &castKeys);
+        if (error != Error::NONE) {
+            return error;
+        }
+        outKeys->clear();
+        for (auto key : castKeys) {
+            outKeys->push_back(static_cast<IComposerClient::PerFrameMetadataKey>(key));
+        }
+        return Error::NONE;
+    }
+
+    Error setLayerPerFrameMetadata_2_3(
+        Display display, Layer layer,
+        const std::vector<IComposerClient::PerFrameMetadata>& metadata) override {
+        return setLayerPerFrameMetadata(
+            display, layer,
+            reinterpret_cast<const std::vector<V2_2::IComposerClient::PerFrameMetadata>&>(
+                metadata));
+    }
+
+    Error setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) override {
+        return setColorMode_2_2(display, static_cast<common::V1_1::ColorMode>(mode), intent);
+    }
+
+    Error getRenderIntents_2_3(Display display, ColorMode mode,
+                               std::vector<RenderIntent>* outIntents) override {
+        return getRenderIntents(display, static_cast<common::V1_1::ColorMode>(mode), outIntents);
+    }
+
+    Error getColorModes_2_3(Display display, hidl_vec<ColorMode>* outModes) override {
+        return getColorModes_2_2(display,
+                                 reinterpret_cast<hidl_vec<common::V1_1::ColorMode>*>(outModes));
+    }
+
+    Error getHdrCapabilities_2_3(Display display, hidl_vec<Hdr>* outTypes, float* outMaxLuminance,
+                                 float* outMaxAverageLuminance, float* outMinLuminance) override {
+        return getHdrCapabilities(display, reinterpret_cast<hidl_vec<common::V1_0::Hdr>*>(outTypes),
+                                  outMaxLuminance, outMaxAverageLuminance, outMinLuminance);
+    }
+
+    Error getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                     PixelFormat format, Dataspace dataspace) override {
+        return getClientTargetSupport_2_2(display, width, height,
+                                          static_cast<common::V1_1::PixelFormat>(format),
+                                          static_cast<common::V1_1::Dataspace>(dataspace));
+    }
+
+    Error getReadbackBufferAttributes_2_3(Display display, PixelFormat* outFormat,
+                                          Dataspace* outDataspace) override {
+        return getReadbackBufferAttributes(
+                display, reinterpret_cast<common::V1_1::PixelFormat*>(outFormat),
+                reinterpret_cast<common::V1_1::Dataspace*>(outDataspace));
+    }
+
+    Error getDisplayIdentificationData(Display display, uint8_t* outPort,
+                                       std::vector<uint8_t>* outData) override {
+        if (!mDispatch.getDisplayIdentificationData) {
+            return Error::UNSUPPORTED;
+        }
+
+        uint32_t size = 0;
+        int32_t error =
+            mDispatch.getDisplayIdentificationData(mDevice, display, outPort, &size, nullptr);
+        if (error != HWC2_ERROR_NONE) {
+            return static_cast<Error>(error);
+        }
+
+        std::vector<uint8_t> data(size);
+        error =
+            mDispatch.getDisplayIdentificationData(mDevice, display, outPort, &size, data.data());
+        if (error != HWC2_ERROR_NONE) {
+            return static_cast<Error>(error);
+        }
+
+        data.resize(size);
+        *outData = std::move(data);
+        return Error::NONE;
+    }
+
+    Error setLayerColorTransform(Display display, Layer layer, const float* matrix) override {
+        if (!mDispatch.setLayerColorTransform) {
+            return Error::UNSUPPORTED;
+        }
+        int32_t err = mDispatch.setLayerColorTransform(mDevice, display, layer, matrix);
+        return static_cast<Error>(err);
+    }
+
+    Error getDisplayedContentSamplingAttributes(
+        uint64_t display, PixelFormat& format, Dataspace& dataspace,
+        hidl_bitfield<IComposerClient::FormatColorComponent>& componentMask) override {
+        if (!mDispatch.getDisplayedContentSamplingAttributes) {
+            return Error::UNSUPPORTED;
+        }
+        int32_t formatRaw = 0;
+        int32_t dataspaceRaw = 0;
+        uint8_t componentMaskRaw = 0;
+        int32_t errorRaw = mDispatch.getDisplayedContentSamplingAttributes(
+            mDevice, display, &formatRaw, &dataspaceRaw, &componentMaskRaw);
+        auto error = static_cast<Error>(errorRaw);
+        if (error == Error::NONE) {
+            format = static_cast<PixelFormat>(formatRaw);
+            dataspace = static_cast<Dataspace>(dataspaceRaw);
+            componentMask =
+                static_cast<hidl_bitfield<IComposerClient::FormatColorComponent>>(componentMaskRaw);
+        }
+        return error;
+    };
+
+    Error setDisplayedContentSamplingEnabled(
+        uint64_t display, IComposerClient::DisplayedContentSampling enable,
+        hidl_bitfield<IComposerClient::FormatColorComponent> componentMask,
+        uint64_t maxFrames) override {
+        if (!mDispatch.setDisplayedContentSamplingEnabled) {
+            return Error::UNSUPPORTED;
+        }
+        return static_cast<Error>(mDispatch.setDisplayedContentSamplingEnabled(
+            mDevice, display, static_cast<int32_t>(enable), componentMask, maxFrames));
+    }
+
+    Error getDisplayedContentSample(uint64_t display, uint64_t maxFrames, uint64_t timestamp,
+                                    uint64_t& frameCount, hidl_vec<uint64_t>& sampleComponent0,
+                                    hidl_vec<uint64_t>& sampleComponent1,
+                                    hidl_vec<uint64_t>& sampleComponent2,
+                                    hidl_vec<uint64_t>& sampleComponent3) override {
+        if (!mDispatch.getDisplayedContentSample) {
+            return Error::UNSUPPORTED;
+        }
+
+        int32_t size[4] = {0};
+        auto errorRaw = mDispatch.getDisplayedContentSample(mDevice, display, maxFrames, timestamp,
+                                                            &frameCount, size, nullptr);
+        if (errorRaw != HWC2_ERROR_NONE) {
+            return static_cast<Error>(errorRaw);
+        }
+
+        sampleComponent0.resize(size[0]);
+        sampleComponent1.resize(size[1]);
+        sampleComponent2.resize(size[2]);
+        sampleComponent3.resize(size[3]);
+        uint64_t* samples[] = {sampleComponent0.data(), sampleComponent1.data(),
+                               sampleComponent2.data(), sampleComponent3.data()};
+        errorRaw = mDispatch.getDisplayedContentSample(mDevice, display, maxFrames, timestamp,
+                                                       &frameCount, size, samples);
+        return static_cast<Error>(errorRaw);
+    }
+
+    Error getDisplayCapabilities(
+        Display display, hidl_vec<IComposerClient::DisplayCapability>* outCapabilities) override {
+        if (!mDispatch.getDisplayCapabilities) {
+            return Error::UNSUPPORTED;
+        }
+
+        uint32_t count = 0;
+        int32_t error = mDispatch.getDisplayCapabilities(mDevice, display, &count, nullptr);
+        if (error != HWC2_ERROR_NONE) {
+            return static_cast<Error>(error);
+        }
+        outCapabilities->resize(count);
+        error = mDispatch.getDisplayCapabilities(
+            mDevice, display, &count,
+            reinterpret_cast<std::underlying_type<IComposerClient::DisplayCapability>::type*>(
+                outCapabilities->data()));
+        if (error != HWC2_ERROR_NONE) {
+            *outCapabilities = hidl_vec<IComposerClient::DisplayCapability>();
+            return static_cast<Error>(error);
+        }
+        return Error::NONE;
+    }
+
+    Error setLayerPerFrameMetadataBlobs(
+        Display display, Layer layer,
+        std::vector<IComposerClient::PerFrameMetadataBlob>& metadata) override {
+        if (!mDispatch.setLayerPerFrameMetadataBlobs) {
+            return Error::UNSUPPORTED;
+        }
+
+        std::vector<IComposerClient::PerFrameMetadataKey> keys;
+        std::vector<uint32_t> sizes;
+        std::vector<uint8_t> blobs;
+
+        for (auto metadataBlob : metadata) {
+            keys.push_back(metadataBlob.key);
+            sizes.push_back(metadataBlob.blob.size());
+
+            int writeIndex = blobs.size();
+            blobs.resize(blobs.size() + metadataBlob.blob.size());
+            memcpy(blobs.data() + writeIndex, metadataBlob.blob.data(), metadataBlob.blob.size());
+        }
+
+        int32_t err = mDispatch.setLayerPerFrameMetadataBlobs(
+            mDevice, display, layer, static_cast<uint32_t>(metadata.size()),
+            reinterpret_cast<int32_t*>(keys.data()), reinterpret_cast<uint32_t*>(sizes.data()),
+            blobs.data());
+        return static_cast<Error>(err);
+    }
+
+   protected:
+    bool initDispatch() override {
+        if (!BaseType2_2::initDispatch()) {
+            return false;
+        }
+
+        this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_IDENTIFICATION_DATA,
+                                   &mDispatch.getDisplayIdentificationData);
+        this->initOptionalDispatch(HWC2_FUNCTION_SET_LAYER_COLOR_TRANSFORM,
+                                   &mDispatch.setLayerColorTransform);
+        this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAYED_CONTENT_SAMPLING_ATTRIBUTES,
+                                   &mDispatch.getDisplayedContentSamplingAttributes);
+        this->initOptionalDispatch(HWC2_FUNCTION_SET_DISPLAYED_CONTENT_SAMPLING_ENABLED,
+                                   &mDispatch.setDisplayedContentSamplingEnabled);
+        this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAYED_CONTENT_SAMPLE,
+                                   &mDispatch.getDisplayedContentSample);
+        this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_CAPABILITIES,
+                                   &mDispatch.getDisplayCapabilities);
+        this->initOptionalDispatch(HWC2_FUNCTION_SET_LAYER_PER_FRAME_METADATA_BLOBS,
+                                   &mDispatch.setLayerPerFrameMetadataBlobs);
+        return true;
+    }
+
+   private:
+    struct {
+        HWC2_PFN_GET_DISPLAY_IDENTIFICATION_DATA getDisplayIdentificationData;
+        HWC2_PFN_SET_LAYER_COLOR_TRANSFORM setLayerColorTransform;
+        HWC2_PFN_GET_DISPLAYED_CONTENT_SAMPLING_ATTRIBUTES getDisplayedContentSamplingAttributes;
+        HWC2_PFN_SET_DISPLAYED_CONTENT_SAMPLING_ENABLED setDisplayedContentSamplingEnabled;
+        HWC2_PFN_GET_DISPLAYED_CONTENT_SAMPLE getDisplayedContentSample;
+        HWC2_PFN_GET_DISPLAY_CAPABILITIES getDisplayCapabilities;
+        HWC2_PFN_SET_LAYER_PER_FRAME_METADATA_BLOBS setLayerPerFrameMetadataBlobs;
+    } mDispatch = {};
+
+    using BaseType2_2 = V2_2::passthrough::detail::HwcHalImpl<Hal>;
+    using BaseType2_1 = V2_1::passthrough::detail::HwcHalImpl<Hal>;
+    using BaseType2_1::getHdrCapabilities;
+    using BaseType2_1::mDevice;
+    using BaseType2_2::getClientTargetSupport_2_2;
+    using BaseType2_2::getColorModes_2_2;
+    using BaseType2_2::getPerFrameMetadataKeys;
+    using BaseType2_2::getReadbackBufferAttributes;
+    using BaseType2_2::getRenderIntents;
+    using BaseType2_2::setColorMode_2_2;
+    using BaseType2_2::setLayerPerFrameMetadata;
+};
+
+}  // namespace detail
+
+using HwcHal = detail::HwcHalImpl<hal::ComposerHal>;
+
+}  // namespace passthrough
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcLoader.h b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcLoader.h
new file mode 100644
index 0000000..afef475
--- /dev/null
+++ b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcLoader.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "HwcLoader.h included without LOG_TAG"
+#endif
+
+#include <composer-hal/2.3/Composer.h>
+#include <composer-hal/2.3/ComposerHal.h>
+#include <composer-passthrough/2.2/HwcLoader.h>
+#include <composer-passthrough/2.3/HwcHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace passthrough {
+
+class HwcLoader : public V2_2::passthrough::HwcLoader {
+   public:
+    static IComposer* load() {
+        const hw_module_t* module = loadModule();
+        if (!module) {
+            return nullptr;
+        }
+
+        auto hal = createHalWithAdapter(module);
+        if (!hal) {
+            return nullptr;
+        }
+
+        return createComposer(std::move(hal)).release();
+    }
+
+    // create a ComposerHal instance
+    static std::unique_ptr<hal::ComposerHal> createHal(const hw_module_t* module) {
+        auto hal = std::make_unique<HwcHal>();
+        return hal->initWithModule(module) ? std::move(hal) : nullptr;
+    }
+
+    // create a ComposerHal instance, insert an adapter if necessary
+    static std::unique_ptr<hal::ComposerHal> createHalWithAdapter(const hw_module_t* module) {
+        bool adapted;
+        hwc2_device_t* device = openDeviceWithAdapter(module, &adapted);
+        if (!device) {
+            return nullptr;
+        }
+        auto hal = std::make_unique<HwcHal>();
+        return hal->initWithDevice(std::move(device), !adapted) ? std::move(hal) : nullptr;
+    }
+
+    // create an IComposer instance
+    static std::unique_ptr<IComposer> createComposer(std::unique_ptr<hal::ComposerHal> hal) {
+        return hal::Composer::create(std::move(hal));
+    }
+};
+
+}  // namespace passthrough
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/vts/Android.bp b/graphics/composer/2.3/utils/vts/Android.bp
new file mode 100644
index 0000000..19438cb
--- /dev/null
+++ b/graphics/composer/2.3/utils/vts/Android.bp
@@ -0,0 +1,42 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "android.hardware.graphics.composer@2.3-vts",
+    defaults: ["hidl_defaults"],
+    srcs: [
+        "ComposerVts.cpp",
+    ],
+    static_libs: [
+        "VtsHalHidlTargetTestBase",
+        "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.composer@2.1-vts",
+        "android.hardware.graphics.composer@2.2",
+        "android.hardware.graphics.composer@2.2-vts",
+        "android.hardware.graphics.composer@2.3",
+    ],
+    header_libs: [
+        "android.hardware.graphics.composer@2.1-command-buffer",
+        "android.hardware.graphics.composer@2.2-command-buffer",
+        "android.hardware.graphics.composer@2.3-command-buffer",
+    ],
+    cflags: [
+        "-O0",
+        "-g",
+        "-DLOG_TAG=\"ComposerVts\"",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/composer/2.3/utils/vts/ComposerVts.cpp b/graphics/composer/2.3/utils/vts/ComposerVts.cpp
new file mode 100644
index 0000000..0e541ed
--- /dev/null
+++ b/graphics/composer/2.3/utils/vts/ComposerVts.cpp
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <composer-vts/2.3/ComposerVts.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace vts {
+
+using V2_1::Error;
+
+Composer::Composer() : Composer(::testing::VtsHalHidlTargetTestBase::getService<IComposer>()) {}
+
+Composer::Composer(const std::string& name)
+    : Composer(::testing::VtsHalHidlTargetTestBase::getService<IComposer>(name)) {}
+
+Composer::Composer(const sp<IComposer>& composer)
+    : V2_2::vts::Composer(composer), mComposer(composer) {}
+
+std::unique_ptr<ComposerClient> Composer::createClient() {
+    std::unique_ptr<ComposerClient> client;
+    mComposer->createClient_2_3([&client](const auto& tmpError, const auto& tmpClient) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to create client";
+        client = std::make_unique<ComposerClient>(tmpClient);
+    });
+
+    return client;
+}
+
+sp<IComposerClient> ComposerClient::getRaw() const {
+    return mClient;
+}
+
+bool ComposerClient::getDisplayIdentificationData(Display display, uint8_t* outPort,
+                                                  std::vector<uint8_t>* outData) {
+    bool supported = true;
+    mClient->getDisplayIdentificationData(
+        display, [&](const auto& tmpError, const auto& tmpPort, const auto& tmpData) {
+            if (tmpError == Error::UNSUPPORTED) {
+                supported = false;
+                return;
+            }
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get display identification data";
+
+            *outPort = tmpPort;
+            *outData = tmpData;
+            ASSERT_FALSE(outData->empty()) << "data is empty";
+        });
+
+    return supported;
+}
+
+std::vector<ColorMode> ComposerClient::getColorModes_2_3(Display display) {
+    std::vector<ColorMode> modes;
+    mClient->getColorModes_2_3(display, [&](const auto& tmpError, const auto& tmpModes) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to get color modes";
+        modes = tmpModes;
+    });
+    return modes;
+}
+
+void ComposerClient::setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) {
+    Error error = mClient->setColorMode_2_3(display, mode, intent);
+    ASSERT_TRUE(error == Error::NONE || error == Error::UNSUPPORTED) << "failed to set color mode";
+}
+
+std::vector<RenderIntent> ComposerClient::getRenderIntents_2_3(Display display, ColorMode mode) {
+    std::vector<RenderIntent> intents;
+    mClient->getRenderIntents_2_3(display, mode, [&](const auto& tmpError, const auto& tmpIntents) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to get render intents";
+        intents = tmpIntents;
+    });
+    return intents;
+}
+
+void ComposerClient::getReadbackBufferAttributes_2_3(Display display, PixelFormat* outPixelFormat,
+                                                     Dataspace* outDataspace) {
+    mClient->getReadbackBufferAttributes_2_3(
+        display,
+        [&](const auto& tmpError, const auto& tmpOutPixelFormat, const auto& tmpOutDataspace) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get readback buffer attributes";
+            *outPixelFormat = tmpOutPixelFormat;
+            *outDataspace = tmpOutDataspace;
+        });
+}
+
+bool ComposerClient::getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                                PixelFormat format, Dataspace dataspace) {
+    Error error = mClient->getClientTargetSupport_2_3(display, width, height, format, dataspace);
+    return error == Error::NONE;
+}
+
+std::vector<IComposerClient::PerFrameMetadataKey> ComposerClient::getPerFrameMetadataKeys_2_3(
+    Display display) {
+    std::vector<IComposerClient::PerFrameMetadataKey> keys;
+    mClient->getPerFrameMetadataKeys_2_3(display, [&](const auto& tmpError, const auto& tmpKeys) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to get perFrameMetadataKeys";
+        keys = tmpKeys;
+    });
+    return keys;
+}
+
+std::vector<Hdr> ComposerClient::getHdrCapabilities_2_3(Display display, float* outMaxLuminance,
+                                                        float* outMaxAverageLuminance,
+                                                        float* outMinLuminance) {
+    std::vector<Hdr> types;
+    mClient->getHdrCapabilities_2_3(
+        display, [&](const auto& tmpError, const auto& tmpTypes, const auto& tmpMaxLuminance,
+                     const auto& tmpMaxAverageLuminance, const auto& tmpMinLuminance) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get HDR capabilities";
+            types = tmpTypes;
+            *outMaxLuminance = tmpMaxLuminance;
+            *outMaxAverageLuminance = tmpMaxAverageLuminance;
+            *outMinLuminance = tmpMinLuminance;
+        });
+
+    return types;
+}
+
+Error ComposerClient::getDisplayedContentSamplingAttributes(
+    uint64_t display, PixelFormat& format, Dataspace& dataspace,
+    hidl_bitfield<IComposerClient::FormatColorComponent>& componentMask) {
+    auto error = Error::BAD_PARAMETER;
+    mClient->getDisplayedContentSamplingAttributes(
+        display, [&](const auto& tmpError, const auto& tmpFormat, const auto& tmpDataspace,
+                     const auto& tmpComponentMask) {
+            error = tmpError;
+            format = tmpFormat;
+            dataspace = tmpDataspace;
+            componentMask = tmpComponentMask;
+        });
+    return error;
+}
+
+Error ComposerClient::setDisplayedContentSamplingEnabled(
+    uint64_t display, IComposerClient::DisplayedContentSampling enable,
+    hidl_bitfield<IComposerClient::FormatColorComponent> componentMask, uint64_t maxFrames) {
+    return mClient->setDisplayedContentSamplingEnabled(display, enable, componentMask, maxFrames);
+}
+
+Error ComposerClient::getDisplayedContentSample(uint64_t display, uint64_t maxFrames,
+                                                uint64_t timestamp, uint64_t& frameCount,
+                                                hidl_vec<uint64_t>& sampleComponent0,
+                                                hidl_vec<uint64_t>& sampleComponent1,
+                                                hidl_vec<uint64_t>& sampleComponent2,
+                                                hidl_vec<uint64_t>& sampleComponent3) {
+    auto error = Error::BAD_PARAMETER;
+    mClient->getDisplayedContentSample(
+        display, maxFrames, timestamp,
+        [&](const auto& tmpError, const auto& tmpFrameCount, const auto& tmpSamples0,
+            const auto& tmpSamples1, const auto& tmpSamples2, const auto& tmpSamples3) {
+            error = tmpError;
+            frameCount = tmpFrameCount;
+            sampleComponent0 = tmpSamples0;
+            sampleComponent1 = tmpSamples1;
+            sampleComponent2 = tmpSamples2;
+            sampleComponent3 = tmpSamples3;
+        });
+    return error;
+}
+
+std::vector<IComposerClient::DisplayCapability> ComposerClient::getDisplayCapabilities(
+    Display display) {
+    std::vector<IComposerClient::DisplayCapability> capabilities;
+    mClient->getDisplayCapabilities(
+        display, [&](const auto&, const auto& tmpCapabilities) { capabilities = tmpCapabilities; });
+
+    return capabilities;
+}
+
+}  // namespace vts
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h b/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h
new file mode 100644
index 0000000..ad4ef0b
--- /dev/null
+++ b/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android/hardware/graphics/composer/2.3/IComposer.h>
+#include <android/hardware/graphics/composer/2.3/IComposerClient.h>
+#include <composer-vts/2.2/ComposerVts.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace vts {
+
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
+using common::V1_2::Hdr;
+using common::V1_2::PixelFormat;
+using V2_1::Display;
+using V2_1::Error;
+using V2_3::IComposer;
+using V2_3::IComposerClient;
+
+class ComposerClient;
+
+// A wrapper to IComposer.
+class Composer : public V2_2::vts::Composer {
+   public:
+    Composer();
+    explicit Composer(const std::string& name);
+
+    std::unique_ptr<ComposerClient> createClient();
+
+   protected:
+    explicit Composer(const sp<IComposer>& composer);
+
+   private:
+    const sp<IComposer> mComposer;
+};
+
+// A wrapper to IComposerClient.
+class ComposerClient : public V2_2::vts::ComposerClient {
+   public:
+    explicit ComposerClient(const sp<IComposerClient>& client)
+        : V2_2::vts::ComposerClient(client), mClient(client) {}
+
+    sp<IComposerClient> getRaw() const;
+
+    bool getDisplayIdentificationData(Display display, uint8_t* outPort,
+                                      std::vector<uint8_t>* outData);
+    Error getDisplayedContentSamplingAttributes(
+        uint64_t display, PixelFormat& format, Dataspace& dataspace,
+        hidl_bitfield<IComposerClient::FormatColorComponent>& componentMask);
+    Error setDisplayedContentSamplingEnabled(
+        uint64_t display, IComposerClient::DisplayedContentSampling enable,
+        hidl_bitfield<IComposerClient::FormatColorComponent> componentMask, uint64_t maxFrames);
+    Error getDisplayedContentSample(uint64_t display, uint64_t maxFrames, uint64_t timestamp,
+                                    uint64_t& frameCount, hidl_vec<uint64_t>& sampleComponent0,
+                                    hidl_vec<uint64_t>& sampleComponent1,
+                                    hidl_vec<uint64_t>& sampleComponent2,
+                                    hidl_vec<uint64_t>& sampleComponent3);
+
+    std::vector<ColorMode> getColorModes_2_3(Display display);
+
+    void setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent);
+
+    std::vector<RenderIntent> getRenderIntents_2_3(Display display, ColorMode mode);
+
+    void getReadbackBufferAttributes_2_3(Display display, PixelFormat* outPixelFormat,
+                                         Dataspace* outDataspace);
+
+    std::vector<Hdr> getHdrCapabilities_2_3(Display display, float* outMaxLuminance,
+                                            float* outMaxAverageLuminance, float* outMinLuminance);
+
+    bool getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                    PixelFormat format, Dataspace dataspace);
+    std::vector<IComposerClient::DisplayCapability> getDisplayCapabilities(Display display);
+
+    std::vector<IComposerClient::PerFrameMetadataKey> getPerFrameMetadataKeys_2_3(Display display);
+
+   private:
+    const sp<IComposerClient> mClient;
+};
+
+}  // namespace vts
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/composer/2.3/vts/functional/Android.bp b/graphics/composer/2.3/vts/functional/Android.bp
new file mode 100644
index 0000000..7548cb5
--- /dev/null
+++ b/graphics/composer/2.3/vts/functional/Android.bp
@@ -0,0 +1,45 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalGraphicsComposerV2_3TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalGraphicsComposerV2_3TargetTest.cpp"],
+
+    // TODO(b/64437680): Assume these libs are always available on the device.
+    shared_libs: [
+        "libfmq",
+        "libhidltransport",
+        "libsync",
+    ],
+    static_libs: [
+        "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.composer@2.1-vts",
+        "android.hardware.graphics.composer@2.2",
+        "android.hardware.graphics.composer@2.2-vts",
+        "android.hardware.graphics.composer@2.3",
+        "android.hardware.graphics.composer@2.3-vts",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@2.0-vts",
+        "android.hardware.graphics.mapper@2.1",
+    ],
+    header_libs: [
+        "android.hardware.graphics.composer@2.1-command-buffer",
+        "android.hardware.graphics.composer@2.2-command-buffer",
+        "android.hardware.graphics.composer@2.3-command-buffer",
+    ],
+}
diff --git a/graphics/composer/2.3/vts/functional/OWNERS b/graphics/composer/2.3/vts/functional/OWNERS
new file mode 100644
index 0000000..b3ea6be
--- /dev/null
+++ b/graphics/composer/2.3/vts/functional/OWNERS
@@ -0,0 +1,8 @@
+# Graphics team
+lpy@google.com
+stoza@google.com
+vhau@google.com
+
+# VTS team
+yim@google.com
+zhuoyao@google.com
diff --git a/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp b/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
new file mode 100644
index 0000000..de74e28
--- /dev/null
+++ b/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
@@ -0,0 +1,618 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "graphics_composer_hidl_hal_test@2.3"
+
+#include <algorithm>
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android-base/logging.h>
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <composer-command-buffer/2.3/ComposerCommandBuffer.h>
+#include <composer-vts/2.1/GraphicsComposerCallback.h>
+#include <composer-vts/2.1/TestCommandReader.h>
+#include <composer-vts/2.3/ComposerVts.h>
+#include <mapper-vts/2.0/MapperVts.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace vts {
+namespace {
+
+using common::V1_0::BufferUsage;
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
+using common::V1_2::PixelFormat;
+using mapper::V2_0::IMapper;
+using mapper::V2_0::vts::Gralloc;
+
+// Test environment for graphics.composer
+class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static GraphicsComposerHidlEnvironment* Instance() {
+        static GraphicsComposerHidlEnvironment* instance = new GraphicsComposerHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IComposer>(); }
+
+   private:
+    GraphicsComposerHidlEnvironment() {}
+
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(GraphicsComposerHidlEnvironment);
+};
+
+class GraphicsComposerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   protected:
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(
+            mComposer = std::make_unique<Composer>(
+                GraphicsComposerHidlEnvironment::Instance()->getServiceName<IComposer>()));
+        ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient());
+
+        mComposerCallback = new V2_1::vts::GraphicsComposerCallback;
+        mComposerClient->registerCallback(mComposerCallback);
+
+        // assume the first display is primary and is never removed
+        mPrimaryDisplay = waitForFirstDisplay();
+
+        mInvalidDisplayId = GetInvalidDisplayId();
+
+        // explicitly disable vsync
+        mComposerClient->setVsyncEnabled(mPrimaryDisplay, false);
+        mComposerCallback->setVsyncAllowed(false);
+
+        mWriter = std::make_unique<CommandWriterBase>(1024);
+        mReader = std::make_unique<V2_1::vts::TestCommandReader>();
+    }
+
+    void TearDown() override {
+        ASSERT_EQ(0, mReader->mErrors.size());
+        ASSERT_EQ(0, mReader->mCompositionChanges.size());
+        if (mComposerCallback != nullptr) {
+            EXPECT_EQ(0, mComposerCallback->getInvalidHotplugCount());
+            EXPECT_EQ(0, mComposerCallback->getInvalidRefreshCount());
+            EXPECT_EQ(0, mComposerCallback->getInvalidVsyncCount());
+        }
+    }
+
+    // returns an invalid display id (one that has not been registered to a
+    // display.  Currently assuming that a device will never have close to
+    // std::numeric_limit<uint64_t>::max() displays registered while running tests
+    Display GetInvalidDisplayId() {
+        std::vector<Display> validDisplays = mComposerCallback->getDisplays();
+        uint64_t id = std::numeric_limits<uint64_t>::max();
+        while (id > 0) {
+            if (std::find(validDisplays.begin(), validDisplays.end(), id) == validDisplays.end()) {
+                return id;
+            }
+            id--;
+        }
+
+        return 0;
+    }
+
+    void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
+
+    // use the slot count usually set by SF
+    static constexpr uint32_t kBufferSlotCount = 64;
+
+    std::unique_ptr<Composer> mComposer;
+    std::unique_ptr<ComposerClient> mComposerClient;
+    sp<V2_1::vts::GraphicsComposerCallback> mComposerCallback;
+    // the first display and is assumed never to be removed
+    Display mPrimaryDisplay;
+    Display mInvalidDisplayId;
+    std::unique_ptr<CommandWriterBase> mWriter;
+    std::unique_ptr<V2_1::vts::TestCommandReader> mReader;
+
+   private:
+    Display waitForFirstDisplay() {
+        while (true) {
+            std::vector<Display> displays = mComposerCallback->getDisplays();
+            if (displays.empty()) {
+                usleep(5 * 1000);
+                continue;
+            }
+
+            return displays[0];
+        }
+    }
+};
+
+// Tests for IComposerClient::Command.
+class GraphicsComposerHidlCommandTest : public GraphicsComposerHidlTest {
+   protected:
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::SetUp());
+
+        ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>());
+
+        mWriter = std::make_unique<CommandWriterBase>(1024);
+        mReader = std::make_unique<V2_1::vts::TestCommandReader>();
+    }
+
+    void TearDown() override {
+        ASSERT_EQ(0, mReader->mErrors.size());
+        ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::TearDown());
+    }
+
+    const native_handle_t* allocate() {
+        IMapper::BufferDescriptorInfo info{};
+        info.width = 64;
+        info.height = 64;
+        info.layerCount = 1;
+        info.format = static_cast<common::V1_0::PixelFormat>(PixelFormat::RGBA_8888);
+        info.usage =
+            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+
+        return mGralloc->allocate(info);
+    }
+
+    void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
+
+    std::unique_ptr<CommandWriterBase> mWriter;
+    std::unique_ptr<V2_1::vts::TestCommandReader> mReader;
+
+   private:
+    std::unique_ptr<Gralloc> mGralloc;
+};
+
+/**
+ * Test IComposerClient::getDisplayIdentificationData.
+ *
+ * TODO: Check that ports are unique for multiple displays.
+ */
+TEST_F(GraphicsComposerHidlTest, GetDisplayIdentificationData) {
+    uint8_t port0;
+    std::vector<uint8_t> data0;
+    if (mComposerClient->getDisplayIdentificationData(mPrimaryDisplay, &port0, &data0)) {
+        uint8_t port1;
+        std::vector<uint8_t> data1;
+        ASSERT_TRUE(mComposerClient->getDisplayIdentificationData(mPrimaryDisplay, &port1, &data1));
+
+        ASSERT_EQ(port0, port1) << "ports are not stable";
+        ASSERT_TRUE(data0.size() == data1.size() &&
+                    std::equal(data0.begin(), data0.end(), data1.begin()))
+            << "data is not stable";
+    }
+}
+
+/**
+ * Test IComposerClient::Command::SET_LAYER_PER_FRAME_METADATA.
+ */
+TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_PER_FRAME_METADATA) {
+    Layer layer;
+    ASSERT_NO_FATAL_FAILURE(layer =
+                                mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+    mWriter->selectLayer(layer);
+
+    /**
+     * DISPLAY_P3 is a color space that uses the DCI_P3 primaries,
+     * the D65 white point and the SRGB transfer functions.
+     * Rendering Intent: Colorimetric
+     * Primaries:
+     *                  x       y
+     *  green           0.265   0.690
+     *  blue            0.150   0.060
+     *  red             0.680   0.320
+     *  white (D65)     0.3127  0.3290
+     */
+
+    std::vector<IComposerClient::PerFrameMetadata> hidlMetadata;
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::DISPLAY_RED_PRIMARY_X, 0.680});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::DISPLAY_RED_PRIMARY_Y, 0.320});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::DISPLAY_GREEN_PRIMARY_X, 0.265});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::DISPLAY_GREEN_PRIMARY_Y, 0.690});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::DISPLAY_BLUE_PRIMARY_X, 0.150});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::DISPLAY_BLUE_PRIMARY_Y, 0.060});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::WHITE_POINT_X, 0.3127});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::WHITE_POINT_Y, 0.3290});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::MAX_LUMINANCE, 100.0});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::MIN_LUMINANCE, 0.1});
+    hidlMetadata.push_back({IComposerClient::PerFrameMetadataKey::MAX_CONTENT_LIGHT_LEVEL, 78.0});
+    hidlMetadata.push_back(
+        {IComposerClient::PerFrameMetadataKey::MAX_FRAME_AVERAGE_LIGHT_LEVEL, 62.0});
+    mWriter->setLayerPerFrameMetadata(hidlMetadata);
+    execute();
+
+    if (mReader->mErrors.size() == 1 &&
+        static_cast<Error>(mReader->mErrors[0].second) == Error::UNSUPPORTED) {
+        mReader->mErrors.clear();
+        GTEST_SUCCEED() << "SetLayerPerFrameMetadata is not supported";
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->destroyLayer(mPrimaryDisplay, layer));
+        return;
+    }
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->destroyLayer(mPrimaryDisplay, layer));
+}
+
+/**
+ * Test IComposerClient::getHdrCapabilities_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetHdrCapabilities_2_3) {
+    float maxLuminance;
+    float maxAverageLuminance;
+    float minLuminance;
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->getHdrCapabilities_2_3(
+        mPrimaryDisplay, &maxLuminance, &maxAverageLuminance, &minLuminance));
+    ASSERT_TRUE(maxLuminance >= minLuminance);
+}
+
+/**
+ * Test IComposerClient::getPerFrameMetadataKeys_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetPerFrameMetadataKeys_2_3) {
+    std::vector<IComposerClient::PerFrameMetadataKey> keys;
+    mComposerClient->getRaw()->getPerFrameMetadataKeys_2_3(
+        mPrimaryDisplay, [&](const auto tmpError, const auto outKeys) {
+            if (tmpError != Error::UNSUPPORTED) {
+                ASSERT_EQ(Error::NONE, tmpError);
+                keys = outKeys;
+            }
+        });
+}
+
+/**
+ * TestIComposerClient::getReadbackBufferAttributes_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetReadbackBufferAttributes_2_3) {
+    Dataspace dataspace;
+    PixelFormat pixelFormat;
+
+    mComposerClient->getRaw()->getReadbackBufferAttributes_2_3(
+        mPrimaryDisplay,
+        [&](const auto tmpError, const auto outPixelFormat, const auto outDataspace) {
+            if (tmpError != Error::UNSUPPORTED) {
+                ASSERT_EQ(Error::NONE, tmpError);
+                dataspace = outDataspace;
+                pixelFormat = outPixelFormat;
+            }
+        });
+}
+
+/**
+ * Test IComposerClient::getClientTargetSupport_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetClientTargetSupport_2_3) {
+    std::vector<V2_1::Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        int32_t height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+        ASSERT_LT(0, width);
+        ASSERT_LT(0, height);
+
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+
+        ASSERT_TRUE(mComposerClient->getClientTargetSupport_2_3(
+            mPrimaryDisplay, width, height, PixelFormat::RGBA_8888, Dataspace::UNKNOWN));
+    }
+}
+/**
+ * Test IComposerClient::getClientTargetSupport_2_3
+ *
+ * Test that IComposerClient::getClientTargetSupport_2_3 returns
+ * Error::BAD_DISPLAY when passed in an invalid display handle
+ */
+
+TEST_F(GraphicsComposerHidlTest, GetClientTargetSupport_2_3BadDisplay) {
+    std::vector<V2_1::Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        int32_t height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+        ASSERT_LT(0, width);
+        ASSERT_LT(0, height);
+
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+
+        Error error = mComposerClient->getRaw()->getClientTargetSupport_2_3(
+            mInvalidDisplayId, width, height, PixelFormat::RGBA_8888, Dataspace::UNKNOWN);
+
+        EXPECT_EQ(Error::BAD_DISPLAY, error);
+    }
+}
+
+/**
+ * Test IComposerClient::getRenderIntents_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents_2_3) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+    for (auto mode : modes) {
+        std::vector<RenderIntent> intents =
+            mComposerClient->getRenderIntents_2_3(mPrimaryDisplay, mode);
+
+        bool isHdr;
+        switch (mode) {
+            case ColorMode::BT2100_PQ:
+            case ColorMode::BT2100_HLG:
+                isHdr = true;
+                break;
+            default:
+                isHdr = false;
+                break;
+        }
+        RenderIntent requiredIntent =
+            isHdr ? RenderIntent::TONE_MAP_COLORIMETRIC : RenderIntent::COLORIMETRIC;
+
+        auto iter = std::find(intents.cbegin(), intents.cend(), requiredIntent);
+        EXPECT_NE(intents.cend(), iter);
+    }
+}
+
+/*
+ * Test IComposerClient::getRenderIntents_2_3
+ *
+ * Test that IComposerClient::getRenderIntents_2_3 returns Error::BAD_DISPLAY when
+ * passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents_2_3BadDisplay) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+    for (auto mode : modes) {
+        mComposerClient->getRaw()->getRenderIntents_2_3(
+            mInvalidDisplayId, mode,
+            [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_DISPLAY, tmpError); });
+    }
+}
+
+/*
+ * Test IComposerClient::getRenderIntents_2_3
+ *
+ * Test that IComposerClient::getRenderIntents_2_3 returns Error::BAD_PARAMETER when
+ * pased either an invalid Color mode or an invalid Render Intent
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents_2_3BadParameter) {
+    mComposerClient->getRaw()->getRenderIntents_2_3(
+        mPrimaryDisplay, static_cast<ColorMode>(-1),
+        [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_PARAMETER, tmpError); });
+}
+
+/**
+ * IComposerClient::getColorModes_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetColorModes_2_3) {
+    std::vector<ColorMode> colorModes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+
+    auto native = std::find(colorModes.cbegin(), colorModes.cend(), ColorMode::NATIVE);
+    ASSERT_NE(colorModes.cend(), native);
+}
+
+/*
+ * Test IComposerClient::getColorModes_2_3
+ *
+ * Test that IComposerClient::getColorModes_2_3 returns Error::BAD_DISPLAY when
+ * passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetColorMode_2_3BadDisplay) {
+    mComposerClient->getRaw()->getColorModes_2_3(
+        mInvalidDisplayId,
+        [&](const auto& tmpError, const auto&) { ASSERT_EQ(Error::BAD_DISPLAY, tmpError); });
+}
+
+/**
+ * IComposerClient::setColorMode_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_3) {
+    std::vector<ColorMode> colorModes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+    for (auto mode : colorModes) {
+        std::vector<RenderIntent> intents =
+            mComposerClient->getRenderIntents_2_3(mPrimaryDisplay, mode);
+        for (auto intent : intents) {
+            ASSERT_NO_FATAL_FAILURE(
+                mComposerClient->setColorMode_2_3(mPrimaryDisplay, mode, intent));
+        }
+    }
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode_2_3(mPrimaryDisplay, ColorMode::NATIVE,
+                                                              RenderIntent::COLORIMETRIC));
+}
+
+/*
+ * Test IComposerClient::setColorMode_2_3
+ *
+ * Test that IComposerClient::setColorMode_2_3 returns an Error::BAD_DISPLAY
+ * when passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_3BadDisplay) {
+    Error error = mComposerClient->getRaw()->setColorMode_2_3(mInvalidDisplayId, ColorMode::NATIVE,
+                                                              RenderIntent::COLORIMETRIC);
+
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/*
+ * Test IComposerClient::setColorMode_2_3
+ *
+ * Test that IComposerClient::setColorMode_2_3 returns Error::BAD_PARAMETER when
+ * passed an invalid Color mode or an invalid render intent
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_3BadParameter) {
+    Error colorModeError = mComposerClient->getRaw()->setColorMode_2_3(
+        mPrimaryDisplay, static_cast<ColorMode>(-1), RenderIntent::COLORIMETRIC);
+    EXPECT_EQ(Error::BAD_PARAMETER, colorModeError);
+
+    Error renderIntentError = mComposerClient->getRaw()->setColorMode_2_3(
+        mPrimaryDisplay, ColorMode::NATIVE, static_cast<RenderIntent>(-1));
+    EXPECT_EQ(Error::BAD_PARAMETER, renderIntentError);
+}
+
+/**
+ * Test IComposerClient::Command::SET_LAYER_COLOR_TRANSFORM.
+ * TODO Add color to the layer, use matrix to keep only red component,
+ * and check.
+ */
+TEST_F(GraphicsComposerHidlTest, SetLayerColorTransform) {
+    Layer layer;
+    ASSERT_NO_FATAL_FAILURE(layer =
+                                mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
+    mWriter->selectDisplay(mPrimaryDisplay);
+    mWriter->selectLayer(layer);
+
+    // clang-format off
+    const std::array<float, 16> matrix = {{
+        1.0f, 0.0f, 0.0f, 0.0f,
+        0.0f, 1.0f, 0.0f, 0.0f,
+        0.0f, 0.0f, 1.0f, 0.0f,
+        0.0f, 0.0f, 0.0f, 1.0f,
+    }};
+    // clang-format on
+
+    mWriter->setLayerColorTransform(matrix.data());
+    execute();
+
+    if (mReader->mErrors.size() == 1 &&
+        static_cast<Error>(mReader->mErrors[0].second) == Error::UNSUPPORTED) {
+        mReader->mErrors.clear();
+        GTEST_SUCCEED() << "setLayerColorTransform is not supported";
+        return;
+    }
+}
+
+TEST_F(GraphicsComposerHidlTest, GetDisplayedContentSamplingAttributes) {
+    int constexpr invalid = -1;
+    auto format = static_cast<PixelFormat>(invalid);
+    auto dataspace = static_cast<Dataspace>(invalid);
+    auto componentMask = static_cast<hidl_bitfield<IComposerClient::FormatColorComponent>>(invalid);
+    auto error = mComposerClient->getDisplayedContentSamplingAttributes(mPrimaryDisplay, format,
+                                                                        dataspace, componentMask);
+
+    if (error == Error::UNSUPPORTED) {
+        SUCCEED() << "Device does not support optional extension. Test skipped";
+        return;
+    }
+
+    EXPECT_EQ(error, Error::NONE);
+    EXPECT_NE(format, static_cast<PixelFormat>(invalid));
+    EXPECT_NE(dataspace, static_cast<Dataspace>(invalid));
+    EXPECT_NE(componentMask,
+              static_cast<hidl_bitfield<IComposerClient::FormatColorComponent>>(invalid));
+};
+
+TEST_F(GraphicsComposerHidlTest, SetDisplayedContentSamplingEnabled) {
+    auto const maxFrames = 10;
+    auto const enableAllComponents = 0;
+    auto error = mComposerClient->setDisplayedContentSamplingEnabled(
+        mPrimaryDisplay, IComposerClient::DisplayedContentSampling::ENABLE, enableAllComponents,
+        maxFrames);
+    if (error == Error::UNSUPPORTED) {
+        SUCCEED() << "Device does not support optional extension. Test skipped";
+        return;
+    }
+    EXPECT_EQ(error, Error::NONE);
+
+    error = mComposerClient->setDisplayedContentSamplingEnabled(
+        mPrimaryDisplay, IComposerClient::DisplayedContentSampling::DISABLE, enableAllComponents,
+        maxFrames);
+    EXPECT_EQ(error, Error::NONE);
+}
+
+TEST_F(GraphicsComposerHidlTest, GetDisplayedContentSample) {
+    int constexpr invalid = -1;
+    auto format = static_cast<PixelFormat>(invalid);
+    auto dataspace = static_cast<Dataspace>(invalid);
+    auto componentMask = static_cast<hidl_bitfield<IComposerClient::FormatColorComponent>>(invalid);
+    auto error = mComposerClient->getDisplayedContentSamplingAttributes(mPrimaryDisplay, format,
+                                                                        dataspace, componentMask);
+
+    uint64_t maxFrames = 10;
+    uint64_t timestamp = 0;
+    uint64_t frameCount = 0;
+    hidl_array<hidl_vec<uint64_t>, 4> histogram;
+    error = mComposerClient->getDisplayedContentSample(mPrimaryDisplay, maxFrames, timestamp,
+                                                       frameCount, histogram[0], histogram[1],
+                                                       histogram[2], histogram[3]);
+    if (error == Error::UNSUPPORTED) {
+        SUCCEED() << "Device does not support optional extension. Test skipped";
+        return;
+    }
+
+    EXPECT_EQ(error, Error::NONE);
+    EXPECT_LE(frameCount, maxFrames);
+    for (auto i = 0; i < histogram.size(); i++) {
+        if (componentMask & (1 << i)) {
+            EXPECT_NE(histogram[i].size(), 0);
+        } else {
+            EXPECT_EQ(histogram[i].size(), 0);
+        }
+    }
+}
+
+/*
+ * getDisplayCapabilities is required in composer 2.3
+ * Test some constraints.
+ */
+TEST_F(GraphicsComposerHidlTest, getDisplayCapabilitiesBasic) {
+    auto capabilities = mComposerClient->getDisplayCapabilities(mPrimaryDisplay);
+    bool hasDozeSupport = std::find(capabilities.begin(), capabilities.end(),
+                                    IComposerClient::DisplayCapability::DOZE) != capabilities.end();
+    EXPECT_EQ(mComposerClient->getDozeSupport(mPrimaryDisplay), hasDozeSupport);
+}
+
+TEST_F(GraphicsComposerHidlTest, getDisplayCapabilitiesBadDisplay) {
+    mComposerClient->getRaw()->getDisplayCapabilities(
+        mInvalidDisplayId,
+        [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_DISPLAY, tmpError); });
+}
+
+TEST_F(GraphicsComposerHidlTest, SetLayerPerFrameMetadataBlobs) {
+    Layer layer;
+    ASSERT_NO_FATAL_FAILURE(layer =
+                                mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
+
+    mWriter->selectDisplay(mPrimaryDisplay);
+    mWriter->selectLayer(layer);
+
+    std::vector<IComposerClient::PerFrameMetadataBlob> metadata;
+    metadata.push_back(
+        {IComposerClient::PerFrameMetadataKey::HDR10_PLUS_SEI, std::vector<uint8_t>(1, 0xff)});
+
+    mWriter->setLayerPerFrameMetadataBlobs(metadata);
+    execute();
+
+    if (mReader->mErrors.size() == 1 &&
+        static_cast<Error>(mReader->mErrors[0].second) == Error::UNSUPPORTED) {
+        mReader->mErrors.clear();
+        GTEST_SUCCEED() << "setLayerDynamicPerFrameMetadata is not supported";
+        return;
+    }
+}
+
+}  // namespace
+}  // namespace vts
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
+
+int main(int argc, char** argv) {
+    using android::hardware::graphics::composer::V2_3::vts::GraphicsComposerHidlEnvironment;
+    ::testing::AddGlobalTestEnvironment(GraphicsComposerHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    GraphicsComposerHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    return status;
+}
diff --git a/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp b/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp
index aa9beff..5ec0af2 100644
--- a/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp
+++ b/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp
@@ -16,6 +16,10 @@
 
 #define LOG_TAG "VtsHalGraphicsMapperV2_0TargetTest"
 
+#include <chrono>
+#include <thread>
+#include <vector>
+
 #include <VtsHalHidlTargetTestBase.h>
 #include <android-base/logging.h>
 #include <mapper-vts/2.0/MapperVts.h>
@@ -125,6 +129,36 @@
 }
 
 /**
+ * Test that IAllocator::allocate is thread-safe.
+ */
+TEST_F(GraphicsMapperHidlTest, AllocatorAllocateThreaded) {
+    BufferDescriptor descriptor;
+    ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
+
+    std::atomic<bool> timeUp(false);
+    std::atomic<uint64_t> allocationCount(0);
+    auto threadLoop = [&]() {
+        while (!timeUp) {
+            mGralloc->getAllocator()->allocate(
+                descriptor, 1, [&](const auto&, const auto&, const auto&) { allocationCount++; });
+        }
+    };
+
+    std::vector<std::thread> threads;
+    for (int i = 0; i < 8; i++) {
+        threads.push_back(std::thread(threadLoop));
+    }
+
+    std::this_thread::sleep_for(std::chrono::seconds(3));
+    timeUp = true;
+    LOG(VERBOSE) << "Made " << allocationCount << " threaded allocations";
+
+    for (auto& thread : threads) {
+        thread.join();
+    }
+}
+
+/**
  * Test IMapper::createDescriptor with valid descriptor info.
  */
 TEST_F(GraphicsMapperHidlTest, CreateDescriptorBasic) {
diff --git a/graphics/mapper/2.1/utils/passthrough/include/mapper-passthrough/2.1/Gralloc1Hal.h b/graphics/mapper/2.1/utils/passthrough/include/mapper-passthrough/2.1/Gralloc1Hal.h
index 08d604e..c9836e5 100644
--- a/graphics/mapper/2.1/utils/passthrough/include/mapper-passthrough/2.1/Gralloc1Hal.h
+++ b/graphics/mapper/2.1/utils/passthrough/include/mapper-passthrough/2.1/Gralloc1Hal.h
@@ -28,7 +28,7 @@
 
 using V2_0::BufferDescriptor;
 using V2_0::Error;
-using android::hardware::graphics::common::V1_0::BufferUsage;
+using android::hardware::graphics::common::V1_1::BufferUsage;
 
 namespace detail {
 
@@ -72,6 +72,8 @@
 
     Error createDescriptor_2_1(const IMapper::BufferDescriptorInfo& descriptorInfo,
                                BufferDescriptor* outDescriptor) override {
+        if (gralloc1UsageUnsupported(descriptorInfo.usage))
+             return Error::BAD_DESCRIPTOR;
         return createDescriptor(
             V2_0::IMapper::BufferDescriptorInfo{
                 descriptorInfo.width, descriptorInfo.height, descriptorInfo.layerCount,
@@ -163,6 +165,16 @@
         return consumerUsage;
     }
 
+    static bool gralloc1UsageUnsupported(uint64_t usage) {
+        // Certain newer public usage bits should not be used with gralloc1.
+        // We use a blacklist instead of a whitelist here in order to avoid
+        // breaking private usage flags.
+        constexpr uint64_t unsupportedMask = BufferUsage::GPU_CUBE_MAP |
+                                             BufferUsage::GPU_MIPMAP_COMPLETE;
+
+        return usage & unsupportedMask;
+    }
+
    private:
     using BaseType2_0 = V2_0::passthrough::detail::Gralloc1HalImpl<Hal>;
     using BaseType2_0::createDescriptor;
diff --git a/graphics/mapper/3.0/Android.bp b/graphics/mapper/3.0/Android.bp
new file mode 100644
index 0000000..b2f0aa6
--- /dev/null
+++ b/graphics/mapper/3.0/Android.bp
@@ -0,0 +1,26 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.mapper@3.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
+    srcs: [
+        "types.hal",
+        "IMapper.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "Error",
+        "YCbCrLayout",
+    ],
+    gen_java: false,
+}
+
diff --git a/graphics/mapper/3.0/IMapper.hal b/graphics/mapper/3.0/IMapper.hal
new file mode 100644
index 0000000..a0e4d7a
--- /dev/null
+++ b/graphics/mapper/3.0/IMapper.hal
@@ -0,0 +1,304 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.mapper@3.0;
+
+import android.hardware.graphics.common@1.1::BufferUsage;
+import android.hardware.graphics.common@1.1::PixelFormat;
+import android.hardware.graphics.common@1.2::Rect;
+
+interface IMapper {
+    struct BufferDescriptorInfo {
+        /**
+         * The width specifies how many columns of pixels must be in the
+         * allocated buffer, but does not necessarily represent the offset in
+         * columns between the same column in adjacent rows. The rows may be
+         * padded.
+         */
+        uint32_t width;
+
+       /**
+        * The height specifies how many rows of pixels must be in the
+        * allocated buffer.
+        */
+        uint32_t height;
+
+       /**
+        * The number of image layers that must be in the allocated buffer.
+        */
+        uint32_t layerCount;
+
+        /** Buffer pixel format. */
+        PixelFormat format;
+
+        /**
+         * Buffer usage mask; valid flags can be found in the definition of
+         * BufferUsage.
+         */
+        bitfield<BufferUsage> usage;
+    };
+
+    struct Rect {
+        int32_t left;
+        int32_t top;
+        int32_t width;
+        int32_t height;
+    };
+
+    /**
+     * Creates a buffer descriptor. The descriptor can be used with IAllocator
+     * to allocate buffers.
+     *
+     * Since the buffer descriptor fully describes a buffer, any device
+     * dependent or device independent checks must be performed here whenever
+     * possible. Specifically, when layered buffers are not supported, this
+     * function must return `UNSUPPORTED` if `description.layers` is great than
+     * 1.
+     *
+     * @param description Attributes of the descriptor.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_VALUE` if any of the specified attributes are invalid or
+     *       inconsistent.
+     *     - `NO_RESOURCES` if the creation cannot be fullfilled due to
+     *       unavailability of resources.
+     *     - `UNSUPPORTED` when any of the specified attributes are not
+     *       supported.
+     * @return descriptor Newly created buffer descriptor.
+     */
+    createDescriptor(BufferDescriptorInfo description)
+            generates (Error error,
+                       BufferDescriptor descriptor);
+
+    /**
+     * Imports a raw buffer handle to create an imported buffer handle for use
+     * with the rest of the mapper or with other in-process libraries.
+     *
+     * A buffer handle is considered raw when it is cloned (e.g., with
+     * `native_handle_clone()`) from another buffer handle locally, or when it
+     * is received from another HAL server/client or another process. A raw
+     * buffer handle must not be used to access the underlying graphic
+     * buffer. It must be imported to create an imported handle first.
+     *
+     * This function must at least validate the raw handle before creating the
+     * imported handle. It must also support importing the same raw handle
+     * multiple times to create multiple imported handles. The imported handle
+     * must be considered valid everywhere in the process, including in
+     * another instance of the mapper.
+     *
+     * Because of passthrough HALs, a raw buffer handle received from a HAL
+     * may actually have been imported in the process. importBuffer() must treat
+     * such a handle as if it is raw and must not return `BAD_BUFFER`. The
+     * returned handle is independent from the input handle as usual, and
+     * freeBuffer() must be called on it when it is no longer needed.
+     *
+     * @param rawHandle Raw buffer handle to import.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the raw handle is invalid.
+     *     - `NO_RESOURCES` if the raw handle cannot be imported due to
+     *       unavailability of resources.
+     * @return buffer Imported buffer handle that has the type
+     *     `buffer_handle_t` which is a handle type.
+     */
+    importBuffer(handle rawHandle) generates (Error error, pointer buffer);
+
+    /**
+     * Frees a buffer handle. Buffer handles returned by importBuffer() must be
+     * freed with this function when no longer needed.
+     *
+     * This function must free up all resources allocated by importBuffer() for
+     * the imported handle. For example, if the imported handle was created
+     * with `native_handle_create()`, this function must call
+     * `native_handle_close()` and `native_handle_delete()`.
+     *
+     * @param buffer Imported buffer handle.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid.
+     */
+    freeBuffer(pointer buffer) generates (Error error);
+
+    /**
+     * Validates that the buffer can be safely accessed by a caller who assumes
+     * the specified @p description and @p stride. This must at least validate
+     * that the buffer size is large enough. Validating the buffer against
+     * individual buffer attributes is optional.
+     *
+     * @param buffer Buffer to validate against.
+     * @param description Attributes of the buffer.
+     * @param stride Stride returned by IAllocator::allocate().
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid.
+     *     - `BAD_VALUE` if the buffer cannot be safely accessed.
+     */
+    validateBufferSize(pointer buffer,
+                       BufferDescriptorInfo description,
+                       uint32_t stride)
+            generates (Error error);
+
+    /**
+     * Calculates the transport size of a buffer. An imported buffer handle is a
+     * raw buffer handle with the process-local runtime data appended. This
+     * function, for example, allows a caller to omit the process-local runtime
+     * data at the tail when serializing the imported buffer handle.
+     *
+     * Note that a client might or might not omit the process-local runtime data
+     * when sending an imported buffer handle. The mapper must support both
+     * cases on the receiving end.
+     *
+     * @param buffer Buffer to get the transport size from.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid.
+     * @return numFds The number of file descriptors needed for transport.
+     * @return numInts The number of integers needed for transport.
+     */
+    getTransportSize(pointer buffer)
+            generates (Error error,
+                       uint32_t numFds,
+                       uint32_t numInts);
+
+    /**
+     * Locks the given buffer for the specified CPU usage.
+     *
+     * Locking the same buffer simultaneously from multiple threads is
+     * permitted, but if any of the threads attempt to lock the buffer for
+     * writing, the behavior is undefined, except that it must not cause
+     * process termination or block the client indefinitely. Leaving the
+     * buffer content in an indeterminate state or returning an error are both
+     * acceptable.
+     *
+     * 1D buffers (width = size in bytes, height = 1, pixel_format = BLOB) must
+     * "lock in place". The buffers must be directly accessible via mapping.
+     *
+     * The client must not modify the content of the buffer outside of
+     * @p accessRegion, and the device need not guarantee that content outside
+     * of @p accessRegion is valid for reading. The result of reading or writing
+     * outside of @p accessRegion is undefined, except that it must not cause
+     * process termination.
+     *
+     * On success, @p data must be filled with a pointer to the locked buffer
+     * memory. This address will represent the top-left corner of the entire
+     * buffer, even if @p accessRegion does not begin at the top-left corner.
+     *
+     * On success, bytesPerPixel must contain the number of bytes per pixel in
+     * the buffer. If the bytesPerPixel is unknown or variable, a value of -1
+     * should be returned. bytesPerStride must contain the bytes per stride of
+     * the buffer. If the bytesPerStride is unknown or variable, a value of -1
+     * should be returned.
+     *
+     * @param buffer Buffer to lock.
+     * @param cpuUsage CPU usage flags to request. See +ndk
+     *     libnativewindow#AHardwareBuffer_UsageFlags for possible values.
+     * @param accessRegion Portion of the buffer that the client intends to
+     *     access.
+     * @param acquireFence Handle containing a file descriptor referring to a
+     *     sync fence object, which will be signaled when it is safe for the
+     *     mapper to lock the buffer. @p acquireFence may be an empty fence if
+     *     it is already safe to lock.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid or is incompatible with this
+     *       function.
+     *     - `BAD_VALUE` if @p cpuUsage is 0, contains non-CPU usage flags, or
+     *       is incompatible with the buffer.
+     *     - `NO_RESOURCES` if the buffer cannot be locked at this time. Note
+     *       that locking may succeed at a later time.
+     * @return data CPU-accessible pointer to the buffer data.
+     * @return bytesPerPixel the number of bytes per pixel in the buffer
+     * @return bytesPerStride the number of bytes per stride of the buffer
+     */
+    lock(pointer buffer,
+         uint64_t cpuUsage,
+         Rect accessRegion,
+         handle acquireFence)
+            generates (Error error,
+                       pointer data,
+                       int32_t bytesPerPixel,
+                       int32_t bytesPerStride);
+
+    /**
+     * Locks a YCbCr buffer for the specified CPU usage.
+     *
+     * This is largely the same as lock(), except that instead of returning a
+     * pointer directly to the buffer data, it returns a `YCbCrLayout` struct
+     * describing how to access the data planes.
+     *
+     * This function must work on buffers with
+     * `AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_*` if supported by the device, as well
+     * as with any other formats requested by multimedia codecs when they are
+     * configured with a flexible-YUV-compatible color format.
+     *
+     * @param buffer Buffer to lock.
+     * @param cpuUsage CPU usage flags to request. See +ndk
+     *     libnativewindow#AHardwareBuffer_UsageFlags for possible values.
+     * @param accessRegion Portion of the buffer that the client intends to
+     *     access.
+     * @param acquireFence Handle containing a file descriptor referring to a
+     *     sync fence object, which will be signaled when it is safe for the
+     *     mapper to lock the buffer. @p acquireFence may be empty if it is
+     *     already safe to lock.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid or is incompatible with this
+     *       function.
+     *     - `BAD_VALUE` if @p cpuUsage is 0, contains non-CPU usage flags, or
+     *       is incompatible with the buffer.
+     *     - `NO_RESOURCES` if the buffer cannot be locked at this time. Note
+     *       that locking may succeed at a later time.
+     * @return layout Data layout of the locked buffer.
+     */
+    lockYCbCr(pointer buffer,
+              uint64_t cpuUsage,
+              Rect accessRegion,
+              handle acquireFence)
+            generates (Error error,
+                       YCbCrLayout layout);
+
+    /**
+     * Unlocks a buffer to indicate all CPU accesses to the buffer have
+     * completed.
+     *
+     * @param buffer Buffer to unlock.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid or not locked.
+     * @return releaseFence Handle containing a file descriptor referring to a
+     *     sync fence object. The sync fence object will be signaled when the
+     *     mapper has completed any pending work. @p releaseFence may be an
+     *     empty fence.
+     */
+    unlock(pointer buffer) generates (Error error, handle releaseFence);
+
+    /**
+     * Test whether the given BufferDescriptorInfo is allocatable.
+     *
+     * If this function returns true, it means that a buffer with the given
+     * description can be allocated on this implementation, unless resource
+     * exhaustion occurs. If this function returns false, it means that the
+     * allocation of the given description will never succeed.
+     *
+     * @param description the description of the buffer
+     * @return supported whether the description is supported
+     */
+    isSupported(BufferDescriptorInfo description)
+            generates (Error error,
+                       bool supported);
+
+};
+
diff --git a/graphics/mapper/3.0/types.hal b/graphics/mapper/3.0/types.hal
new file mode 100644
index 0000000..f94abd3
--- /dev/null
+++ b/graphics/mapper/3.0/types.hal
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.mapper@3.0;
+
+/**
+ * Error values that may be returned by a method of IAllocator or IMapper.
+ */
+enum Error : int32_t {
+    /**
+     * No error.
+     */
+    NONE            = 0,
+    /**
+     * Invalid BufferDescriptor.
+     */
+    BAD_DESCRIPTOR  = 1,
+    /**
+     * Invalid buffer handle.
+     */
+    BAD_BUFFER      = 2,
+    /**
+     * Invalid HardwareBufferDescription.
+     */
+    BAD_VALUE       = 3,
+    /**
+     * Resource unavailable.
+     */
+    NO_RESOURCES    = 5,
+    /**
+     * Permanent failure.
+     */
+    UNSUPPORTED     = 7,
+};
+
+/**
+ * A buffer descriptor is an implementation-defined opaque data returned by
+ * createDescriptor(). It describes the properties of a buffer and is consumed
+ * by the allocator.
+ */
+typedef vec<uint32_t> BufferDescriptor;
+
+/**
+ * Structure for describing YCbCr formats for consumption by applications.
+ * This is used with PixelFormat::YCBCR_*_888.
+ *
+ * Buffer chroma subsampling is defined in the format.
+ * e.g. PixelFormat::YCBCR_420_888 has subsampling 4:2:0.
+ *
+ * Buffers must have a 8 bit depth.
+ *
+ * y, cb, and cr point to the first byte of their respective planes.
+ *
+ * Stride describes the distance in bytes from the first value of one row of
+ * the image to the first value of the next row. It includes the width of the
+ * image plus padding.
+ * yStride is the stride of the luma plane.
+ * cStride is the stride of the chroma planes.
+ *
+ * chromaStep is the distance in bytes from one chroma pixel value to the
+ * next. This is 2 bytes for semiplanar (because chroma values are interleaved
+ * and each chroma value is one byte) and 1 for planar.
+ */
+struct YCbCrLayout {
+    pointer y;
+    pointer cb;
+    pointer cr;
+    uint32_t yStride;
+    uint32_t cStride;
+    uint32_t chromaStep;
+};
diff --git a/graphics/mapper/3.0/utils/OWNERS b/graphics/mapper/3.0/utils/OWNERS
new file mode 100644
index 0000000..96f6d51
--- /dev/null
+++ b/graphics/mapper/3.0/utils/OWNERS
@@ -0,0 +1,3 @@
+# Graphics team
+marissaw@google.com
+stoza@google.com
diff --git a/graphics/mapper/3.0/utils/vts/Android.bp b/graphics/mapper/3.0/utils/vts/Android.bp
new file mode 100644
index 0000000..c3d480a
--- /dev/null
+++ b/graphics/mapper/3.0/utils/vts/Android.bp
@@ -0,0 +1,34 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "android.hardware.graphics.mapper@3.0-vts",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["MapperVts.cpp"],
+    cflags: [
+        "-O0",
+        "-g",
+    ],
+    static_libs: [
+        "android.hardware.graphics.allocator@3.0",
+        "android.hardware.graphics.mapper@3.0",
+    ],
+    export_static_lib_headers: [
+        "android.hardware.graphics.allocator@3.0",
+        "android.hardware.graphics.mapper@3.0",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/mapper/3.0/utils/vts/MapperVts.cpp b/graphics/mapper/3.0/utils/vts/MapperVts.cpp
new file mode 100644
index 0000000..f2b7594
--- /dev/null
+++ b/graphics/mapper/3.0/utils/vts/MapperVts.cpp
@@ -0,0 +1,288 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <mapper-vts/3.0/MapperVts.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V3_0 {
+namespace vts {
+
+Gralloc::Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName) {
+    init(allocatorServiceName, mapperServiceName);
+}
+
+void Gralloc::init(const std::string& allocatorServiceName, const std::string& mapperServiceName) {
+    mAllocator = ::testing::VtsHalHidlTargetTestBase::getService<IAllocator>(allocatorServiceName);
+    ASSERT_NE(nullptr, mAllocator.get()) << "failed to get allocator service";
+
+    mMapper = ::testing::VtsHalHidlTargetTestBase::getService<IMapper>(mapperServiceName);
+    ASSERT_NE(nullptr, mMapper.get()) << "failed to get mapper service";
+    ASSERT_FALSE(mMapper->isRemote()) << "mapper is not in passthrough mode";
+}
+
+Gralloc::~Gralloc() {
+    for (auto bufferHandle : mClonedBuffers) {
+        auto buffer = const_cast<native_handle_t*>(bufferHandle);
+        native_handle_close(buffer);
+        native_handle_delete(buffer);
+    }
+    mClonedBuffers.clear();
+
+    for (auto bufferHandle : mImportedBuffers) {
+        auto buffer = const_cast<native_handle_t*>(bufferHandle);
+        EXPECT_EQ(Error::NONE, mMapper->freeBuffer(buffer)) << "failed to free buffer " << buffer;
+    }
+    mImportedBuffers.clear();
+}
+
+sp<IAllocator> Gralloc::getAllocator() const {
+    return mAllocator;
+}
+
+std::string Gralloc::dumpDebugInfo() {
+    std::string debugInfo;
+    mAllocator->dumpDebugInfo([&](const auto& tmpDebugInfo) { debugInfo = tmpDebugInfo.c_str(); });
+
+    return debugInfo;
+}
+
+const native_handle_t* Gralloc::cloneBuffer(const hidl_handle& rawHandle) {
+    const native_handle_t* bufferHandle = native_handle_clone(rawHandle.getNativeHandle());
+    EXPECT_NE(nullptr, bufferHandle);
+
+    if (bufferHandle) {
+        mClonedBuffers.insert(bufferHandle);
+    }
+
+    return bufferHandle;
+}
+
+std::vector<const native_handle_t*> Gralloc::allocate(const BufferDescriptor& descriptor,
+                                                      uint32_t count, bool import,
+                                                      uint32_t* outStride) {
+    std::vector<const native_handle_t*> bufferHandles;
+    bufferHandles.reserve(count);
+    mAllocator->allocate(
+        descriptor, count,
+        [&](const auto& tmpError, const auto& tmpStride, const auto& tmpBuffers) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to allocate buffers";
+            ASSERT_EQ(count, tmpBuffers.size()) << "invalid buffer array";
+
+            for (uint32_t i = 0; i < count; i++) {
+                if (import) {
+                    ASSERT_NO_FATAL_FAILURE(bufferHandles.push_back(importBuffer(tmpBuffers[i])));
+                } else {
+                    ASSERT_NO_FATAL_FAILURE(bufferHandles.push_back(cloneBuffer(tmpBuffers[i])));
+                }
+            }
+
+            if (outStride) {
+                *outStride = tmpStride;
+            }
+        });
+
+    if (::testing::Test::HasFatalFailure()) {
+        bufferHandles.clear();
+    }
+
+    return bufferHandles;
+}
+
+const native_handle_t* Gralloc::allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                         bool import, uint32_t* outStride) {
+    BufferDescriptor descriptor = createDescriptor(descriptorInfo);
+    if (::testing::Test::HasFatalFailure()) {
+        return nullptr;
+    }
+
+    auto buffers = allocate(descriptor, 1, import, outStride);
+    if (::testing::Test::HasFatalFailure()) {
+        return nullptr;
+    }
+
+    return buffers[0];
+}
+
+sp<IMapper> Gralloc::getMapper() const {
+    return mMapper;
+}
+
+BufferDescriptor Gralloc::createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo) {
+    BufferDescriptor descriptor;
+    mMapper->createDescriptor(descriptorInfo, [&](const auto& tmpError, const auto& tmpDescriptor) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to create descriptor";
+        descriptor = tmpDescriptor;
+    });
+
+    return descriptor;
+}
+
+const native_handle_t* Gralloc::importBuffer(const hidl_handle& rawHandle) {
+    const native_handle_t* bufferHandle = nullptr;
+    mMapper->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBuffer) {
+        ASSERT_EQ(Error::NONE, tmpError)
+            << "failed to import buffer %p" << rawHandle.getNativeHandle();
+        bufferHandle = static_cast<const native_handle_t*>(tmpBuffer);
+    });
+
+    if (bufferHandle) {
+        mImportedBuffers.insert(bufferHandle);
+    }
+
+    return bufferHandle;
+}
+
+void Gralloc::freeBuffer(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    if (mImportedBuffers.erase(bufferHandle)) {
+        Error error = mMapper->freeBuffer(buffer);
+        ASSERT_EQ(Error::NONE, error) << "failed to free buffer " << buffer;
+    } else {
+        mClonedBuffers.erase(bufferHandle);
+        native_handle_close(buffer);
+        native_handle_delete(buffer);
+    }
+}
+
+void* Gralloc::lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                    const IMapper::Rect& accessRegion, int acquireFence, int32_t* outBytesPerPixel,
+                    int32_t* outBytesPerStride) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
+    hidl_handle acquireFenceHandle;
+    if (acquireFence >= 0) {
+        auto h = native_handle_init(acquireFenceStorage, 1, 0);
+        h->data[0] = acquireFence;
+        acquireFenceHandle = h;
+    }
+
+    *outBytesPerPixel = -1;
+    *outBytesPerStride = -1;
+
+    void* data = nullptr;
+    mMapper->lock(buffer, cpuUsage, accessRegion, acquireFenceHandle,
+                  [&](const auto& tmpError, const auto& tmpData, int32_t tmpBytesPerPixel,
+                      int32_t tmpBytesPerStride) {
+                      ASSERT_EQ(Error::NONE, tmpError) << "failed to lock buffer " << buffer;
+                      data = tmpData;
+                      *outBytesPerPixel = tmpBytesPerPixel;
+                      *outBytesPerStride = tmpBytesPerStride;
+                  });
+
+    if (acquireFence >= 0) {
+        close(acquireFence);
+    }
+
+    return data;
+}
+
+YCbCrLayout Gralloc::lockYCbCr(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                               const IMapper::Rect& accessRegion, int acquireFence) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
+    hidl_handle acquireFenceHandle;
+    if (acquireFence >= 0) {
+        auto h = native_handle_init(acquireFenceStorage, 1, 0);
+        h->data[0] = acquireFence;
+        acquireFenceHandle = h;
+    }
+
+    YCbCrLayout layout = {};
+    mMapper->lockYCbCr(buffer, cpuUsage, accessRegion, acquireFenceHandle,
+                       [&](const auto& tmpError, const auto& tmpLayout) {
+                           ASSERT_EQ(Error::NONE, tmpError)
+                               << "failed to lockYCbCr buffer " << buffer;
+                           layout = tmpLayout;
+                       });
+
+    if (acquireFence >= 0) {
+        close(acquireFence);
+    }
+
+    return layout;
+}
+
+int Gralloc::unlock(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    int releaseFence = -1;
+    mMapper->unlock(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to unlock buffer " << buffer;
+
+        auto fenceHandle = tmpReleaseFence.getNativeHandle();
+        if (fenceHandle) {
+            ASSERT_EQ(0, fenceHandle->numInts) << "invalid fence handle " << fenceHandle;
+            if (fenceHandle->numFds == 1) {
+                releaseFence = dup(fenceHandle->data[0]);
+                ASSERT_LT(0, releaseFence) << "failed to dup fence fd";
+            } else {
+                ASSERT_EQ(0, fenceHandle->numFds) << " invalid fence handle " << fenceHandle;
+            }
+        }
+    });
+
+    return releaseFence;
+}
+
+bool Gralloc::validateBufferSize(const native_handle_t* bufferHandle,
+                                 const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                 uint32_t stride) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    Error error = mMapper->validateBufferSize(buffer, descriptorInfo, stride);
+    return error == Error::NONE;
+}
+
+void Gralloc::getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
+                               uint32_t* outNumInts) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    *outNumFds = 0;
+    *outNumInts = 0;
+    mMapper->getTransportSize(
+        buffer, [&](const auto& tmpError, const auto& tmpNumFds, const auto& tmpNumInts) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get transport size";
+            ASSERT_GE(bufferHandle->numFds, int(tmpNumFds)) << "invalid numFds " << tmpNumFds;
+            ASSERT_GE(bufferHandle->numInts, int(tmpNumInts)) << "invalid numInts " << tmpNumInts;
+
+            *outNumFds = tmpNumFds;
+            *outNumInts = tmpNumInts;
+        });
+}
+
+bool Gralloc::isSupported(const IMapper::BufferDescriptorInfo& descriptorInfo) {
+    bool supported = false;
+    mMapper->isSupported(descriptorInfo, [&](const auto& tmpError, const auto& tmpSupported) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to check is supported";
+        supported = tmpSupported;
+    });
+    return supported;
+}
+
+}  // namespace vts
+}  // namespace V3_0
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h b/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
new file mode 100644
index 0000000..ba79ca4
--- /dev/null
+++ b/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <string>
+#include <unordered_set>
+#include <vector>
+
+#include <android/hardware/graphics/allocator/3.0/IAllocator.h>
+#include <android/hardware/graphics/mapper/3.0/IMapper.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V3_0 {
+namespace vts {
+
+using android::hardware::graphics::allocator::V3_0::IAllocator;
+
+// A wrapper to IAllocator and IMapper.
+class Gralloc {
+   public:
+    Gralloc(const std::string& allocatorServiceName = "default",
+            const std::string& mapperServiceName = "default");
+    ~Gralloc();
+
+    // IAllocator methods
+
+    sp<IAllocator> getAllocator() const;
+
+    std::string dumpDebugInfo();
+
+    // When import is false, this simply calls IAllocator::allocate. When import
+    // is true, the returned buffers are also imported into the mapper.
+    //
+    // Either case, the returned buffers must be freed with freeBuffer.
+    std::vector<const native_handle_t*> allocate(const BufferDescriptor& descriptor, uint32_t count,
+                                                 bool import = true, uint32_t* outStride = nullptr);
+    const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                    bool import = true, uint32_t* outStride = nullptr);
+
+    // IMapper methods
+
+    sp<IMapper> getMapper() const;
+
+    BufferDescriptor createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo);
+
+    const native_handle_t* importBuffer(const hidl_handle& rawHandle);
+    void freeBuffer(const native_handle_t* bufferHandle);
+
+    // We use fd instead of hidl_handle in these functions to pass fences
+    // in and out of the mapper.  The ownership of the fd is always transferred
+    // with each of these functions.
+    void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+               const IMapper::Rect& accessRegion, int acquireFence, int32_t* outBytesPerPixel,
+               int32_t* outBytesPerStride);
+    YCbCrLayout lockYCbCr(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                          const IMapper::Rect& accessRegion, int acquireFence);
+    int unlock(const native_handle_t* bufferHandle);
+
+    bool validateBufferSize(const native_handle_t* bufferHandle,
+                            const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
+    void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
+                          uint32_t* outNumInts);
+
+    bool isSupported(const IMapper::BufferDescriptorInfo& descriptorInfo);
+
+   private:
+    void init(const std::string& allocatorServiceName, const std::string& mapperServiceName);
+    const native_handle_t* cloneBuffer(const hidl_handle& rawHandle);
+
+    sp<IAllocator> mAllocator;
+    sp<IMapper> mMapper;
+
+    // Keep track of all cloned and imported handles.  When a test fails with
+    // ASSERT_*, the destructor will free the handles for the test.
+    std::unordered_set<const native_handle_t*> mClonedBuffers;
+    std::unordered_set<const native_handle_t*> mImportedBuffers;
+};
+
+}  // namespace vts
+}  // namespace V3_0
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/mapper/3.0/vts/OWNERS b/graphics/mapper/3.0/vts/OWNERS
new file mode 100644
index 0000000..96f6d51
--- /dev/null
+++ b/graphics/mapper/3.0/vts/OWNERS
@@ -0,0 +1,3 @@
+# Graphics team
+marissaw@google.com
+stoza@google.com
diff --git a/graphics/mapper/3.0/vts/functional/Android.bp b/graphics/mapper/3.0/vts/functional/Android.bp
new file mode 100644
index 0000000..77075a5
--- /dev/null
+++ b/graphics/mapper/3.0/vts/functional/Android.bp
@@ -0,0 +1,30 @@
+//
+// Copyright 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalGraphicsMapperV3_0TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalGraphicsMapperV3_0TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.graphics.allocator@3.0",
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hardware.graphics.mapper@3.0",
+        "android.hardware.graphics.mapper@3.0-vts",
+    ],
+    test_suites: ["general-tests"],
+}
diff --git a/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp b/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp
new file mode 100644
index 0000000..cfae635
--- /dev/null
+++ b/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp
@@ -0,0 +1,493 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VtsHalGraphicsMapperV3_0TargetTest"
+
+#include <chrono>
+#include <thread>
+#include <vector>
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android-base/logging.h>
+#include <mapper-vts/3.0/MapperVts.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V3_0 {
+namespace vts {
+namespace {
+
+using android::hardware::graphics::common::V1_0::BufferUsage;
+using android::hardware::graphics::common::V1_1::PixelFormat;
+
+// Test environment for graphics.mapper.
+class GraphicsMapperHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static GraphicsMapperHidlEnvironment* Instance() {
+        static GraphicsMapperHidlEnvironment* instance = new GraphicsMapperHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override {
+        registerTestService<IAllocator>();
+        registerTestService<IMapper>();
+    }
+};
+
+class GraphicsMapperHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   protected:
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(
+            mGralloc = std::make_unique<Gralloc>(
+                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
+                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+
+        mDummyDescriptorInfo.width = 64;
+        mDummyDescriptorInfo.height = 64;
+        mDummyDescriptorInfo.layerCount = 1;
+        mDummyDescriptorInfo.format = PixelFormat::RGBA_8888;
+        mDummyDescriptorInfo.usage =
+            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+    }
+
+    void TearDown() override {}
+
+    std::unique_ptr<Gralloc> mGralloc;
+    IMapper::BufferDescriptorInfo mDummyDescriptorInfo{};
+};
+
+/**
+ * Test IAllocator::dumpDebugInfo by calling it.
+ */
+TEST_F(GraphicsMapperHidlTest, AllocatorDumpDebugInfo) {
+    mGralloc->dumpDebugInfo();
+}
+
+/**
+ * Test IAllocator::allocate with valid buffer descriptors.
+ */
+TEST_F(GraphicsMapperHidlTest, AllocatorAllocate) {
+    BufferDescriptor descriptor;
+    ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
+
+    for (uint32_t count = 0; count < 5; count++) {
+        std::vector<const native_handle_t*> bufferHandles;
+        uint32_t stride;
+        ASSERT_NO_FATAL_FAILURE(bufferHandles =
+                                    mGralloc->allocate(descriptor, count, false, &stride));
+
+        if (count >= 1) {
+            EXPECT_LE(mDummyDescriptorInfo.width, stride) << "invalid buffer stride";
+        }
+
+        for (auto bufferHandle : bufferHandles) {
+            mGralloc->freeBuffer(bufferHandle);
+        }
+    }
+}
+
+/**
+ * Test IAllocator::allocate with invalid buffer descriptors.
+ */
+TEST_F(GraphicsMapperHidlTest, AllocatorAllocateNegative) {
+    // this assumes any valid descriptor is non-empty
+    BufferDescriptor descriptor;
+    mGralloc->getAllocator()->allocate(descriptor, 1,
+                                       [&](const auto& tmpError, const auto&, const auto&) {
+                                           EXPECT_EQ(Error::BAD_DESCRIPTOR, tmpError);
+                                       });
+}
+
+/**
+ * Test IAllocator::allocate does not leak.
+ */
+TEST_F(GraphicsMapperHidlTest, AllocatorAllocateNoLeak) {
+    auto info = mDummyDescriptorInfo;
+    info.width = 1024;
+    info.height = 1024;
+
+    for (int i = 0; i < 2048; i++) {
+        auto bufferHandle = mGralloc->allocate(info, false);
+        mGralloc->freeBuffer(bufferHandle);
+    }
+}
+
+/**
+ * Test that IAllocator::allocate is thread-safe.
+ */
+TEST_F(GraphicsMapperHidlTest, AllocatorAllocateThreaded) {
+    BufferDescriptor descriptor;
+    ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
+
+    std::atomic<bool> timeUp(false);
+    std::atomic<uint64_t> allocationCount(0);
+    auto threadLoop = [&]() {
+        while (!timeUp) {
+            mGralloc->getAllocator()->allocate(
+                descriptor, 1, [&](const auto&, const auto&, const auto&) { allocationCount++; });
+        }
+    };
+
+    std::vector<std::thread> threads;
+    for (int i = 0; i < 8; i++) {
+        threads.push_back(std::thread(threadLoop));
+    }
+
+    std::this_thread::sleep_for(std::chrono::seconds(3));
+    timeUp = true;
+    LOG(VERBOSE) << "Made " << allocationCount << " threaded allocations";
+
+    for (auto& thread : threads) {
+        thread.join();
+    }
+}
+
+/**
+ * Test IMapper::createDescriptor with valid descriptor info.
+ */
+TEST_F(GraphicsMapperHidlTest, CreateDescriptorBasic) {
+    ASSERT_NO_FATAL_FAILURE(mGralloc->createDescriptor(mDummyDescriptorInfo));
+}
+
+/**
+ * Test IMapper::createDescriptor with invalid descriptor info.
+ */
+TEST_F(GraphicsMapperHidlTest, CreateDescriptorNegative) {
+    auto info = mDummyDescriptorInfo;
+    info.width = 0;
+    mGralloc->getMapper()->createDescriptor(info, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_VALUE, tmpError) << "createDescriptor did not fail with BAD_VALUE";
+    });
+}
+
+/**
+ * Test IMapper::importBuffer and IMapper::freeBuffer with allocated buffers.
+ */
+TEST_F(GraphicsMapperHidlTest, ImportFreeBufferBasic) {
+    const native_handle_t* bufferHandle;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
+    ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(bufferHandle));
+}
+
+/**
+ * Test IMapper::importBuffer and IMapper::freeBuffer with cloned buffers.
+ */
+TEST_F(GraphicsMapperHidlTest, ImportFreeBufferClone) {
+    const native_handle_t* clonedBufferHandle;
+    ASSERT_NO_FATAL_FAILURE(clonedBufferHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
+
+    // A cloned handle is a raw handle. Check that we can import it multiple
+    // times.
+    const native_handle_t* importedBufferHandles[2];
+    ASSERT_NO_FATAL_FAILURE(importedBufferHandles[0] = mGralloc->importBuffer(clonedBufferHandle));
+    ASSERT_NO_FATAL_FAILURE(importedBufferHandles[1] = mGralloc->importBuffer(clonedBufferHandle));
+    ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(importedBufferHandles[0]));
+    ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(importedBufferHandles[1]));
+
+    ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(clonedBufferHandle));
+}
+
+/**
+ * Test IMapper::importBuffer and IMapper::freeBuffer cross mapper instances.
+ */
+TEST_F(GraphicsMapperHidlTest, ImportFreeBufferSingleton) {
+    const native_handle_t* rawHandle;
+    ASSERT_NO_FATAL_FAILURE(rawHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
+
+    native_handle_t* importedHandle = nullptr;
+    mGralloc->getMapper()->importBuffer(rawHandle, [&](const auto& tmpError, const auto& buffer) {
+        ASSERT_EQ(Error::NONE, tmpError);
+        importedHandle = static_cast<native_handle_t*>(buffer);
+    });
+
+    // free the imported handle with another mapper
+    std::unique_ptr<Gralloc> anotherGralloc;
+    ASSERT_NO_FATAL_FAILURE(
+        anotherGralloc = std::make_unique<Gralloc>(
+            GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
+            GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+    Error error = mGralloc->getMapper()->freeBuffer(importedHandle);
+    ASSERT_EQ(Error::NONE, error);
+
+    ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(rawHandle));
+}
+
+/**
+ * Test IMapper::importBuffer and IMapper::freeBuffer do not leak.
+ */
+TEST_F(GraphicsMapperHidlTest, ImportFreeBufferNoLeak) {
+    auto info = mDummyDescriptorInfo;
+    info.width = 1024;
+    info.height = 1024;
+
+    for (int i = 0; i < 2048; i++) {
+        auto bufferHandle = mGralloc->allocate(info, true);
+        mGralloc->freeBuffer(bufferHandle);
+    }
+}
+
+/**
+ * Test IMapper::importBuffer with invalid buffers.
+ */
+TEST_F(GraphicsMapperHidlTest, ImportBufferNegative) {
+    native_handle_t* invalidHandle = nullptr;
+    mGralloc->getMapper()->importBuffer(invalidHandle, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_BUFFER, tmpError)
+            << "importBuffer with nullptr did not fail with BAD_BUFFER";
+    });
+
+    invalidHandle = native_handle_create(0, 0);
+    mGralloc->getMapper()->importBuffer(invalidHandle, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_BUFFER, tmpError)
+            << "importBuffer with invalid handle did not fail with BAD_BUFFER";
+    });
+    native_handle_delete(invalidHandle);
+}
+
+/**
+ * Test IMapper::freeBuffer with invalid buffers.
+ */
+TEST_F(GraphicsMapperHidlTest, FreeBufferNegative) {
+    native_handle_t* invalidHandle = nullptr;
+    Error error = mGralloc->getMapper()->freeBuffer(invalidHandle);
+    EXPECT_EQ(Error::BAD_BUFFER, error) << "freeBuffer with nullptr did not fail with BAD_BUFFER";
+
+    invalidHandle = native_handle_create(0, 0);
+    error = mGralloc->getMapper()->freeBuffer(invalidHandle);
+    EXPECT_EQ(Error::BAD_BUFFER, error)
+        << "freeBuffer with invalid handle did not fail with BAD_BUFFER";
+    native_handle_delete(invalidHandle);
+
+    const native_handle_t* clonedBufferHandle;
+    ASSERT_NO_FATAL_FAILURE(clonedBufferHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
+    error = mGralloc->getMapper()->freeBuffer(invalidHandle);
+    EXPECT_EQ(Error::BAD_BUFFER, error)
+        << "freeBuffer with un-imported handle did not fail with BAD_BUFFER";
+
+    mGralloc->freeBuffer(clonedBufferHandle);
+}
+
+/**
+ * Test IMapper::lock and IMapper::unlock.
+ */
+TEST_F(GraphicsMapperHidlTest, LockUnlockBasic) {
+    const auto& info = mDummyDescriptorInfo;
+
+    const native_handle_t* bufferHandle;
+    uint32_t stride;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true, &stride));
+
+    // lock buffer for writing
+    const IMapper::Rect region{0, 0, static_cast<int32_t>(info.width),
+                               static_cast<int32_t>(info.height)};
+    int fence = -1;
+    uint8_t* data;
+    int32_t bytesPerPixel = -1;
+    int32_t bytesPerStride = -1;
+    ASSERT_NO_FATAL_FAILURE(
+            data = static_cast<uint8_t*>(mGralloc->lock(bufferHandle, info.usage, region, fence,
+                                                        &bytesPerPixel, &bytesPerStride)));
+
+    // Valid return values are -1 for unsupported or the number bytes for supported which is >=0
+    EXPECT_GT(bytesPerPixel, -1);
+    EXPECT_GT(bytesPerStride, -1);
+
+    // RGBA_8888
+    size_t strideInBytes = stride * 4;
+    size_t writeInBytes = info.width * 4;
+
+    for (uint32_t y = 0; y < info.height; y++) {
+        memset(data, y, writeInBytes);
+        data += strideInBytes;
+    }
+
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(bufferHandle));
+
+    bytesPerPixel = -1;
+    bytesPerStride = -1;
+
+    // lock again for reading
+    ASSERT_NO_FATAL_FAILURE(
+            data = static_cast<uint8_t*>(mGralloc->lock(bufferHandle, info.usage, region, fence,
+                                                        &bytesPerPixel, &bytesPerStride)));
+    for (uint32_t y = 0; y < info.height; y++) {
+        for (size_t i = 0; i < writeInBytes; i++) {
+            EXPECT_EQ(static_cast<uint8_t>(y), data[i]);
+        }
+        data += strideInBytes;
+    }
+
+    EXPECT_GT(bytesPerPixel, -1);
+    EXPECT_GT(bytesPerStride, -1);
+
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(bufferHandle));
+    if (fence >= 0) {
+        close(fence);
+    }
+}
+
+/**
+ * Test IMapper::lockYCbCr.  This locks a YV12 buffer, and makes sure we can
+ * write to and read from it.
+ */
+TEST_F(GraphicsMapperHidlTest, LockYCbCrBasic) {
+    auto info = mDummyDescriptorInfo;
+    info.format = PixelFormat::YV12;
+
+    const native_handle_t* bufferHandle;
+    uint32_t stride;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true, &stride));
+
+    // lock buffer for writing
+    const IMapper::Rect region{0, 0, static_cast<int32_t>(info.width),
+                               static_cast<int32_t>(info.height)};
+    int fence = -1;
+    YCbCrLayout layout;
+    ASSERT_NO_FATAL_FAILURE(layout = mGralloc->lockYCbCr(bufferHandle, info.usage, region, fence));
+
+    auto yData = static_cast<uint8_t*>(layout.y);
+    auto cbData = static_cast<uint8_t*>(layout.cb);
+    auto crData = static_cast<uint8_t*>(layout.cr);
+    for (uint32_t y = 0; y < info.height; y++) {
+        for (uint32_t x = 0; x < info.width; x++) {
+            auto val = static_cast<uint8_t>(info.height * y + x);
+
+            yData[layout.yStride * y + x] = val;
+            if (y % 2 == 0 && x % 2 == 0) {
+                cbData[layout.cStride * y / 2 + x / 2] = val;
+                crData[layout.cStride * y / 2 + x / 2] = val;
+            }
+        }
+    }
+
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(bufferHandle));
+
+    // lock again for reading
+    ASSERT_NO_FATAL_FAILURE(layout = mGralloc->lockYCbCr(bufferHandle, info.usage, region, fence));
+
+    yData = static_cast<uint8_t*>(layout.y);
+    cbData = static_cast<uint8_t*>(layout.cb);
+    crData = static_cast<uint8_t*>(layout.cr);
+    for (uint32_t y = 0; y < info.height; y++) {
+        for (uint32_t x = 0; x < info.width; x++) {
+            auto val = static_cast<uint8_t>(info.height * y + x);
+
+            EXPECT_EQ(val, yData[layout.yStride * y + x]);
+            if (y % 2 == 0 && x % 2 == 0) {
+                EXPECT_EQ(val, cbData[layout.cStride * y / 2 + x / 2]);
+                EXPECT_EQ(val, crData[layout.cStride * y / 2 + x / 2]);
+            }
+        }
+    }
+
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(bufferHandle));
+    if (fence >= 0) {
+        close(fence);
+    }
+}
+
+/**
+ * Test IMapper::unlock with invalid buffers.
+ */
+TEST_F(GraphicsMapperHidlTest, UnlockNegative) {
+    native_handle_t* invalidHandle = nullptr;
+    mGralloc->getMapper()->unlock(invalidHandle, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_BUFFER, tmpError)
+            << "unlock with nullptr did not fail with BAD_BUFFER";
+    });
+
+    invalidHandle = native_handle_create(0, 0);
+    mGralloc->getMapper()->unlock(invalidHandle, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_BUFFER, tmpError)
+            << "unlock with invalid handle did not fail with BAD_BUFFER";
+    });
+    native_handle_delete(invalidHandle);
+
+    ASSERT_NO_FATAL_FAILURE(invalidHandle = const_cast<native_handle_t*>(
+                                mGralloc->allocate(mDummyDescriptorInfo, false)));
+    mGralloc->getMapper()->unlock(invalidHandle, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_BUFFER, tmpError)
+            << "unlock with un-imported handle did not fail with BAD_BUFFER";
+    });
+    mGralloc->freeBuffer(invalidHandle);
+
+// disabled as it fails on many existing drivers
+#if 0
+  ASSERT_NO_FATAL_FAILURE(invalidHandle = const_cast<native_handle_t*>(
+                              mGralloc->allocate(mDummyDescriptorInfo, true)));
+  mGralloc->getMapper()->unlock(
+      invalidHandle, [&](const auto& tmpError, const auto&) {
+        EXPECT_EQ(Error::BAD_BUFFER, tmpError)
+            << "unlock with unlocked handle did not fail with BAD_BUFFER";
+      });
+  mGralloc->freeBuffer(invalidHandle);
+#endif
+}
+
+/**
+ * Test IMapper::isSupported with required format RGBA_8888
+ */
+TEST_F(GraphicsMapperHidlTest, IsSupportedRGBA8888) {
+    const auto& info = mDummyDescriptorInfo;
+    bool supported = false;
+
+    ASSERT_NO_FATAL_FAILURE(supported = mGralloc->isSupported(info));
+    ASSERT_TRUE(supported);
+}
+
+/**
+ * Test IMapper::isSupported with required format YV12
+ */
+TEST_F(GraphicsMapperHidlTest, IsSupportedYV12) {
+    auto info = mDummyDescriptorInfo;
+    info.format = PixelFormat::YV12;
+    bool supported = false;
+
+    ASSERT_NO_FATAL_FAILURE(supported = mGralloc->isSupported(info));
+    ASSERT_TRUE(supported);
+}
+
+/**
+ * Test IMapper::isSupported with optional format Y16
+ */
+TEST_F(GraphicsMapperHidlTest, IsSupportedY16) {
+    auto info = mDummyDescriptorInfo;
+    info.format = PixelFormat::Y16;
+    bool supported = false;
+
+    ASSERT_NO_FATAL_FAILURE(supported = mGralloc->isSupported(info));
+}
+
+}  // namespace
+}  // namespace vts
+}  // namespace V3_0
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
+
+int main(int argc, char** argv) {
+    using android::hardware::graphics::mapper::V3_0::vts::GraphicsMapperHidlEnvironment;
+    ::testing::AddGlobalTestEnvironment(GraphicsMapperHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    GraphicsMapperHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/input/classifier/1.0/Android.bp b/input/classifier/1.0/Android.bp
new file mode 100644
index 0000000..6815a51
--- /dev/null
+++ b/input/classifier/1.0/Android.bp
@@ -0,0 +1,18 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.input.classifier@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IInputClassifier.hal",
+    ],
+    interfaces: [
+        "android.hardware.input.common@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+
diff --git a/input/classifier/1.0/IInputClassifier.hal b/input/classifier/1.0/IInputClassifier.hal
new file mode 100644
index 0000000..7397fea
--- /dev/null
+++ b/input/classifier/1.0/IInputClassifier.hal
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.input.classifier@1.0;
+
+import android.hardware.input.common@1.0::Classification;
+import android.hardware.input.common@1.0::MotionEvent;
+
+interface IInputClassifier {
+
+  /**
+   * Returns the classification for the current sequence of input events.
+   */
+  classify(MotionEvent event) generates (Classification classification);
+
+  /**
+   * Called by the framework to reset the HAL internal state. The reset may be called
+   * to prevent an inconsistent stream of events to be sent to the HAL.
+   */
+  reset();
+
+  /**
+   * Called by the framework to reset the HAL internal state for a specific device.
+   * The reset may be called once device reset is received by the framework.
+   */
+  resetDevice(int32_t deviceId);
+
+};
diff --git a/input/classifier/1.0/default/Android.bp b/input/classifier/1.0/default/Android.bp
new file mode 100644
index 0000000..ceb2aca
--- /dev/null
+++ b/input/classifier/1.0/default/Android.bp
@@ -0,0 +1,23 @@
+cc_binary {
+    name: "android.hardware.input.classifier@1.0-service.default",
+    init_rc: ["android.hardware.input.classifier@1.0-service.default.rc"],
+    relative_install_path: "hw",
+    vendor: true,
+    vintf_fragments: ["manifest_input.classifier.xml"],
+    srcs: [
+        "InputClassifier.cpp",
+        "service.cpp",
+    ],
+    shared_libs: [
+        "android.hardware.input.classifier@1.0",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libutils",
+    ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wextra",
+    ],
+}
diff --git a/input/classifier/1.0/default/InputClassifier.cpp b/input/classifier/1.0/default/InputClassifier.cpp
new file mode 100644
index 0000000..cce9190
--- /dev/null
+++ b/input/classifier/1.0/default/InputClassifier.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputClassifierHAL"
+
+#include "InputClassifier.h"
+#include <inttypes.h>
+#include <log/log.h>
+#include <utils/Timers.h>
+
+using namespace android::hardware::input::common::V1_0;
+
+namespace android {
+namespace hardware {
+namespace input {
+namespace classifier {
+namespace V1_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::input::classifier::V1_0::IInputClassifier follow.
+Return<Classification> InputClassifier::classify(const MotionEvent& /*event*/) {
+    /**
+     * The touchscreen data is highly device-dependent.
+     * As a result, the implementation of this method will likely be hardware-specific.
+     * Here we just report gesture as not having any classification, which means that the
+     * default action will be taken in the framework.
+     * This is equivalent to not having the InputClassifier HAL at all.
+     */
+    return Classification::NONE;
+}
+
+Return<void> InputClassifier::reset() {
+    // We don't have any internal state, so no work needed here.
+    return Void();
+}
+
+Return<void> InputClassifier::resetDevice(int32_t /*deviceId*/) {
+    // We don't have any internal per-device state, so no work needed here.
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace classifier
+}  // namespace input
+}  // namespace hardware
+}  // namespace android
diff --git a/input/classifier/1.0/default/InputClassifier.h b/input/classifier/1.0/default/InputClassifier.h
new file mode 100644
index 0000000..eef370e
--- /dev/null
+++ b/input/classifier/1.0/default/InputClassifier.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_INPUT_CLASSIFIER_V1_0_INPUTCLASSIFIER_H
+#define ANDROID_HARDWARE_INPUT_CLASSIFIER_V1_0_INPUTCLASSIFIER_H
+
+#include <android/hardware/input/classifier/1.0/IInputClassifier.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace input {
+namespace classifier {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::Return;
+
+struct InputClassifier : public IInputClassifier {
+    // Methods from ::android::hardware::input::classifier::V1_0::IInputClassifier follow.
+
+    Return<android::hardware::input::common::V1_0::Classification> classify(
+            const android::hardware::input::common::V1_0::MotionEvent& event) override;
+
+    Return<void> reset() override;
+    Return<void> resetDevice(int32_t deviceId) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace classifier
+}  // namespace input
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_INPUT_CLASSIFIER_V1_0_INPUTCLASSIFIER_H
diff --git a/input/classifier/1.0/default/android.hardware.input.classifier@1.0-service.default.rc b/input/classifier/1.0/default/android.hardware.input.classifier@1.0-service.default.rc
new file mode 100644
index 0000000..e7d16ae
--- /dev/null
+++ b/input/classifier/1.0/default/android.hardware.input.classifier@1.0-service.default.rc
@@ -0,0 +1,9 @@
+service vendor.input.classifier-1-0 /vendor/bin/hw/android.hardware.input.classifier@1.0-service.default
+    # Must be specified if "disabled" is set. This HAL will only start if requested via getService
+    interface android.hardware.input.classifier@1.0::IInputClassifier default
+    class hal
+    user nobody
+    # will not be restarted if it exits until it is requested to be restarted
+    oneshot
+    # will only be started when requested
+    disabled
diff --git a/input/classifier/1.0/default/manifest_input.classifier.xml b/input/classifier/1.0/default/manifest_input.classifier.xml
new file mode 100644
index 0000000..8634169
--- /dev/null
+++ b/input/classifier/1.0/default/manifest_input.classifier.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.input.classifier</name>
+        <transport>hwbinder</transport>
+        <version>1.0</version>
+        <interface>
+            <name>IInputClassifier</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/input/classifier/1.0/default/service.cpp b/input/classifier/1.0/default/service.cpp
new file mode 100644
index 0000000..6ef2118
--- /dev/null
+++ b/input/classifier/1.0/default/service.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.input.classifier@1.0"
+
+#include <inttypes.h>
+
+#include <hidl/HidlTransportSupport.h>
+#include <log/log.h>
+
+#include "InputClassifier.h"
+#include "android/hardware/input/classifier/1.0/IInputClassifier.h"
+
+using android::sp;
+using android::status_t;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::input::classifier::V1_0::IInputClassifier;
+using android::hardware::input::classifier::V1_0::implementation::InputClassifier;
+
+int main() {
+    sp<IInputClassifier> classifier = new InputClassifier();
+
+    configureRpcThreadpool(1, true);
+    const status_t status = classifier->registerAsService();
+
+    if (status != android::OK) {
+        ALOGE("Could not register InputClassifier HAL!");
+        return EXIT_FAILURE;  // or handle error
+    }
+
+    joinRpcThreadpool();
+    LOG_ALWAYS_FATAL("Under normal operation, joinRpcThreadpool should never return");
+    return EXIT_FAILURE;
+}
diff --git a/input/classifier/1.0/vts/OWNERS b/input/classifier/1.0/vts/OWNERS
new file mode 100644
index 0000000..447f3d9
--- /dev/null
+++ b/input/classifier/1.0/vts/OWNERS
@@ -0,0 +1,3 @@
+michaelwr@google.com
+pquinn@google.com
+svv@google.com
\ No newline at end of file
diff --git a/input/classifier/1.0/vts/functional/Android.bp b/input/classifier/1.0/vts/functional/Android.bp
new file mode 100644
index 0000000..ef49d70
--- /dev/null
+++ b/input/classifier/1.0/vts/functional/Android.bp
@@ -0,0 +1,27 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalInputClassifierV1_0TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalInputClassifierV1_0TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.input.classifier@1.0",
+        "android.hardware.input.common@1.0",
+    ],
+    test_suites: ["general-tests"],
+}
+
diff --git a/input/classifier/1.0/vts/functional/VtsHalInputClassifierV1_0TargetTest.cpp b/input/classifier/1.0/vts/functional/VtsHalInputClassifierV1_0TargetTest.cpp
new file mode 100644
index 0000000..f033c2a
--- /dev/null
+++ b/input/classifier/1.0/vts/functional/VtsHalInputClassifierV1_0TargetTest.cpp
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "input_classifier_hal_test"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <android-base/logging.h>
+#include <android/hardware/input/classifier/1.0/IInputClassifier.h>
+#include <android/hardware/input/common/1.0/types.h>
+#include <input/InputDevice.h>
+#include <unistd.h>
+
+using ::android::ReservedInputDeviceId;
+using ::android::sp;
+using ::android::hardware::Return;
+using ::android::hardware::input::classifier::V1_0::IInputClassifier;
+using ::android::hardware::input::common::V1_0::Action;
+using ::android::hardware::input::common::V1_0::Axis;
+using ::android::hardware::input::common::V1_0::Button;
+using ::android::hardware::input::common::V1_0::EdgeFlag;
+using ::android::hardware::input::common::V1_0::MotionEvent;
+using ::android::hardware::input::common::V1_0::PointerCoords;
+using ::android::hardware::input::common::V1_0::PointerProperties;
+using ::android::hardware::input::common::V1_0::Source;
+using ::android::hardware::input::common::V1_0::ToolType;
+using ::android::hardware::input::common::V1_0::VideoFrame;
+
+static MotionEvent getSimpleMotionEvent() {
+    MotionEvent event;
+    event.action = Action::DOWN;
+    event.actionButton = Button::NONE;
+    event.actionIndex = 0;
+    event.buttonState = 0;
+    event.deviceId = 0;
+    event.deviceTimestamp = 0;
+    event.displayId = 1;
+    event.downTime = 2;
+    event.edgeFlags = 0;
+    event.eventTime = 3;
+    event.flags = 0;
+    event.frames = {};
+    event.metaState = 0;
+    event.policyFlags = 0;
+    event.source = Source::TOUCHSCREEN;
+    event.xPrecision = 0;
+    event.yPrecision = 0;
+
+    PointerCoords coords;
+    coords.bits = Axis::X | Axis::Y;
+    coords.values = {1 /*X*/, 2 /*Y*/};
+    event.pointerCoords = {coords};
+
+    PointerProperties properties;
+    properties.id = 0;
+    properties.toolType = ToolType::FINGER;
+    event.pointerProperties = {properties};
+
+    return event;
+}
+
+// Test environment for Input Classifier HIDL HAL.
+class InputClassifierHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+  public:
+    // get the test environment singleton
+    static InputClassifierHidlEnvironment* Instance() {
+        static InputClassifierHidlEnvironment* instance = new InputClassifierHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IInputClassifier>(); }
+
+  private:
+    InputClassifierHidlEnvironment() {}
+};
+
+// The main test class for INPUT CLASSIFIER HIDL HAL 1.0.
+class InputClassifierHidlTest_1_0 : public ::testing::VtsHalHidlTargetTestBase {
+  public:
+    virtual void SetUp() override {
+        classifier = ::testing::VtsHalHidlTargetTestBase::getService<IInputClassifier>(
+                InputClassifierHidlEnvironment::Instance()->getServiceName<IInputClassifier>());
+        ASSERT_NE(classifier, nullptr);
+    }
+
+    virtual void TearDown() override {}
+
+    sp<IInputClassifier> classifier;
+};
+
+/**
+ * Call resetDevice(..) for a few common device id values, and make sure that the HAL
+ * can handle the resets gracefully.
+ */
+TEST_F(InputClassifierHidlTest_1_0, ResetDevice) {
+    EXPECT_TRUE(classifier->resetDevice(ReservedInputDeviceId::VIRTUAL_KEYBOARD_ID).isOk());
+    EXPECT_TRUE(classifier->resetDevice(ReservedInputDeviceId::BUILT_IN_KEYBOARD_ID).isOk());
+    EXPECT_TRUE(classifier->resetDevice(1).isOk());
+    EXPECT_TRUE(classifier->resetDevice(2).isOk());
+}
+
+/**
+ * Call reset() on the HAL to ensure no fatal failure there.
+ */
+TEST_F(InputClassifierHidlTest_1_0, ResetHal) {
+    EXPECT_TRUE(classifier->reset().isOk());
+}
+
+/**
+ * Classify an event without any video frames.
+ */
+TEST_F(InputClassifierHidlTest_1_0, Classify_NoVideoFrame) {
+    // Create a MotionEvent that does not have any video data
+    MotionEvent event = getSimpleMotionEvent();
+
+    EXPECT_TRUE(classifier->classify(event).isOk());
+    // We are not checking the actual classification here,
+    // because the HAL operation is highly device-specific.
+
+    // Return HAL to a consistent state by doing a reset
+    classifier->reset();
+}
+
+/**
+ * Classify an event with one video frame. Should be the most common scenario.
+ */
+TEST_F(InputClassifierHidlTest_1_0, Classify_OneVideoFrame) {
+    MotionEvent event = getSimpleMotionEvent();
+    VideoFrame frame;
+    frame.data = {1, 2, 3, 4};
+    frame.height = 2;
+    frame.width = 2;
+    frame.timestamp = event.eventTime;
+    event.frames = {frame};
+
+    EXPECT_TRUE(classifier->classify(event).isOk());
+    // We are not checking the actual classification here,
+    // because the HAL operation is highly device-specific.
+
+    // Return HAL to a consistent state by doing a reset
+    classifier->reset();
+}
+
+/**
+ * Classify an event with 2 video frames. This could happen if there's slowness in the system,
+ * or if simply the video rate is somehow higher that the input event rate.
+ * The HAL should be able to handle events with more than 1 video frame.
+ *
+ * The frames should be in chronological order, but it is not guaranteed that they will have
+ * monotonically increasing timestamps. Still, we provide consistent timestamps here since that
+ * is the most realistic mode of operation.
+ */
+TEST_F(InputClassifierHidlTest_1_0, Classify_TwoVideoFrames) {
+    MotionEvent event = getSimpleMotionEvent();
+    VideoFrame frame1;
+    frame1.data = {1, 2, 3, 4};
+    frame1.height = 2;
+    frame1.width = 2;
+    frame1.timestamp = event.eventTime;
+    VideoFrame frame2 = frame1;
+    frame2.data = {5, 5, 5, -1};
+    frame2.timestamp += 1;
+    event.frames = {frame1, frame2};
+
+    EXPECT_TRUE(classifier->classify(event).isOk());
+    // We are not checking the actual classification here,
+    // because the HAL operation is highly device-specific.
+
+    // Return HAL to a consistent state by doing a reset
+    classifier->reset();
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(InputClassifierHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    InputClassifierHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/input/common/1.0/Android.bp b/input/common/1.0/Android.bp
new file mode 100644
index 0000000..3de18b4
--- /dev/null
+++ b/input/common/1.0/Android.bp
@@ -0,0 +1,31 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.input.common@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+    ],
+    types: [
+        "Action",
+        "Axis",
+        "Button",
+        "Classification",
+        "EdgeFlag",
+        "Flag",
+        "Meta",
+        "MotionEvent",
+        "PointerCoords",
+        "PointerProperties",
+        "PolicyFlag",
+        "Source",
+        "SourceClass",
+        "ToolType",
+        "VideoFrame",
+    ],
+    gen_java: true,
+}
+
diff --git a/input/common/1.0/types.hal b/input/common/1.0/types.hal
new file mode 100644
index 0000000..9ad368b
--- /dev/null
+++ b/input/common/1.0/types.hal
@@ -0,0 +1,846 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.input.common@1.0;
+
+
+/**
+ * Constants that identify each individual axis of a motion event.
+ */
+enum Axis : uint64_t {
+    /**
+     * Axis constant: X axis of a motion event.
+     *
+     * - For a touch screen, reports the absolute X screen position of the center of
+     * the touch contact area.  The units are display pixels.
+     * - For a touch pad, reports the absolute X surface position of the center of the touch
+     * contact area. The units are device-dependent.
+     * - For a mouse, reports the absolute X screen position of the mouse pointer.
+     * The units are display pixels.
+     * - For a trackball, reports the relative horizontal displacement of the trackball.
+     * The value is normalized to a range from -1.0 (left) to 1.0 (right).
+     * - For a joystick, reports the absolute X position of the joystick.
+     * The value is normalized to a range from -1.0 (left) to 1.0 (right).
+     */
+    X = 0,
+    /**
+     * Axis constant: Y axis of a motion event.
+     *
+     * - For a touch screen, reports the absolute Y screen position of the center of
+     * the touch contact area.  The units are display pixels.
+     * - For a touch pad, reports the absolute Y surface position of the center of the touch
+     * contact area. The units are device-dependent.
+     * - For a mouse, reports the absolute Y screen position of the mouse pointer.
+     * The units are display pixels.
+     * - For a trackball, reports the relative vertical displacement of the trackball.
+     * The value is normalized to a range from -1.0 (up) to 1.0 (down).
+     * - For a joystick, reports the absolute Y position of the joystick.
+     * The value is normalized to a range from -1.0 (up or far) to 1.0 (down or near).
+     */
+    Y = 1,
+    /**
+     * Axis constant: Pressure axis of a motion event.
+     *
+     * - For a touch screen or touch pad, reports the approximate pressure applied to the surface
+     * by a finger or other tool.  The value is normalized to a range from
+     * 0 (no pressure at all) to 1 (normal pressure), although values higher than 1
+     * may be generated depending on the calibration of the input device.
+     * - For a trackball, the value is set to 1 if the trackball button is pressed
+     * or 0 otherwise.
+     * - For a mouse, the value is set to 1 if the primary mouse button is pressed
+     * or 0 otherwise.
+     */
+    PRESSURE = 2,
+    /**
+     * Axis constant: Size axis of a motion event.
+     *
+     * - For a touch screen or touch pad, reports the approximate size of the contact area in
+     * relation to the maximum detectable size for the device.  The value is normalized
+     * to a range from 0 (smallest detectable size) to 1 (largest detectable size),
+     * although it is not a linear scale. This value is of limited use.
+     * To obtain calibrated size information, see
+     * {@link TOUCH_MAJOR} or {@link TOOL_MAJOR}.
+     */
+    SIZE = 3,
+    /**
+     * Axis constant: TouchMajor axis of a motion event.
+     *
+     * - For a touch screen, reports the length of the major axis of an ellipse that
+     * represents the touch area at the point of contact.
+     * The units are display pixels.
+     * - For a touch pad, reports the length of the major axis of an ellipse that
+     * represents the touch area at the point of contact.
+     * The units are device-dependent.
+     */
+    TOUCH_MAJOR = 4,
+    /**
+     * Axis constant: TouchMinor axis of a motion event.
+     *
+     * - For a touch screen, reports the length of the minor axis of an ellipse that
+     * represents the touch area at the point of contact.
+     * The units are display pixels.
+     * - For a touch pad, reports the length of the minor axis of an ellipse that
+     * represents the touch area at the point of contact.
+     * The units are device-dependent.
+     *
+     * When the touch is circular, the major and minor axis lengths will be equal to one another.
+     */
+    TOUCH_MINOR = 5,
+    /**
+     * Axis constant: ToolMajor axis of a motion event.
+     *
+     * - For a touch screen, reports the length of the major axis of an ellipse that
+     * represents the size of the approaching finger or tool used to make contact.
+     * - For a touch pad, reports the length of the major axis of an ellipse that
+     * represents the size of the approaching finger or tool used to make contact.
+     * The units are device-dependent.
+     *
+     * When the touch is circular, the major and minor axis lengths will be equal to one another.
+     *
+     * The tool size may be larger than the touch size since the tool may not be fully
+     * in contact with the touch sensor.
+     */
+    TOOL_MAJOR = 6,
+    /**
+     * Axis constant: ToolMinor axis of a motion event.
+     *
+     * - For a touch screen, reports the length of the minor axis of an ellipse that
+     * represents the size of the approaching finger or tool used to make contact.
+     * - For a touch pad, reports the length of the minor axis of an ellipse that
+     * represents the size of the approaching finger or tool used to make contact.
+     * The units are device-dependent.
+     *
+     * When the touch is circular, the major and minor axis lengths will be equal to one another.
+     *
+     * The tool size may be larger than the touch size since the tool may not be fully
+     * in contact with the touch sensor.
+     */
+    TOOL_MINOR = 7,
+    /**
+     * Axis constant: Orientation axis of a motion event.
+     *
+     * - For a touch screen or touch pad, reports the orientation of the finger
+     * or tool in radians relative to the vertical plane of the device.
+     * An angle of 0 radians indicates that the major axis of contact is oriented
+     * upwards, is perfectly circular or is of unknown orientation.  A positive angle
+     * indicates that the major axis of contact is oriented to the right.  A negative angle
+     * indicates that the major axis of contact is oriented to the left.
+     * The full range is from -PI/2 radians (finger pointing fully left) to PI/2 radians
+     * (finger pointing fully right).
+     * - For a stylus, the orientation indicates the direction in which the stylus
+     * is pointing in relation to the vertical axis of the current orientation of the screen.
+     * The range is from -PI radians to PI radians, where 0 is pointing up,
+     * -PI/2 radians is pointing left, -PI or PI radians is pointing down, and PI/2 radians
+     * is pointing right.  See also {@link TILT}.
+     */
+    ORIENTATION = 8,
+    /**
+     * Axis constant: Vertical Scroll axis of a motion event.
+     *
+     * - For a mouse, reports the relative movement of the vertical scroll wheel.
+     * The value is normalized to a range from -1.0 (down) to 1.0 (up).
+     *
+     * The framework may use this axis to scroll views vertically.
+     */
+    VSCROLL = 9,
+    /**
+     * Axis constant: Horizontal Scroll axis of a motion event.
+     *
+     * - For a mouse, reports the relative movement of the horizontal scroll wheel.
+     * The value is normalized to a range from -1.0 (left) to 1.0 (right).
+     *
+     * The framework may use this axis to scroll views horizontally.
+     */
+    HSCROLL = 10,
+    /**
+     * Axis constant: Z axis of a motion event.
+     *
+     * - For a joystick, reports the absolute Z position of the joystick.
+     * The value is normalized to a range from -1.0 (high) to 1.0 (low).
+     * <em>On game pads with two analog joysticks, this axis is often reinterpreted
+     * to report the absolute X position of the second joystick instead.</em>
+     */
+    Z = 11,
+    /**
+     * Axis constant: X Rotation axis of a motion event.
+     *
+     * - For a joystick, reports the absolute rotation angle about the X axis.
+     * The value is normalized to a range from -1.0 (counter-clockwise) to 1.0 (clockwise).
+     */
+    RX = 12,
+    /**
+     * Axis constant: Y Rotation axis of a motion event.
+     *
+     * - For a joystick, reports the absolute rotation angle about the Y axis.
+     * The value is normalized to a range from -1.0 (counter-clockwise) to 1.0 (clockwise).
+     */
+    RY = 13,
+    /**
+     * Axis constant: Z Rotation axis of a motion event.
+     *
+     * - For a joystick, reports the absolute rotation angle about the Z axis.
+     * The value is normalized to a range from -1.0 (counter-clockwise) to 1.0 (clockwise).
+     * On game pads with two analog joysticks, this axis is often reinterpreted
+     * to report the absolute Y position of the second joystick instead.
+     */
+    RZ = 14,
+    /**
+     * Axis constant: Hat X axis of a motion event.
+     *
+     * - For a joystick, reports the absolute X position of the directional hat control.
+     * The value is normalized to a range from -1.0 (left) to 1.0 (right).
+     */
+    HAT_X = 15,
+    /**
+     * Axis constant: Hat Y axis of a motion event.
+     *
+     * - For a joystick, reports the absolute Y position of the directional hat control.
+     * The value is normalized to a range from -1.0 (up) to 1.0 (down).
+     */
+    HAT_Y = 16,
+    /**
+     * Axis constant: Left Trigger axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the left trigger control.
+     * The value is normalized to a range from 0.0 (released) to 1.0 (fully pressed).
+     */
+    LTRIGGER = 17,
+    /**
+     * Axis constant: Right Trigger axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the right trigger control.
+     * The value is normalized to a range from 0.0 (released) to 1.0 (fully pressed).
+     */
+    RTRIGGER = 18,
+    /**
+     * Axis constant: Throttle axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the throttle control.
+     * The value is normalized to a range from 0.0 (fully open) to 1.0 (fully closed).
+     */
+    THROTTLE = 19,
+    /**
+     * Axis constant: Rudder axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the rudder control.
+     * The value is normalized to a range from -1.0 (turn left) to 1.0 (turn right).
+     */
+    RUDDER = 20,
+    /**
+     * Axis constant: Wheel axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the steering wheel control.
+     * The value is normalized to a range from -1.0 (turn left) to 1.0 (turn right).
+     */
+    WHEEL = 21,
+    /**
+     * Axis constant: Gas axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the gas (accelerator) control.
+     * The value is normalized to a range from 0.0 (no acceleration)
+     * to 1.0 (maximum acceleration).
+     */
+    GAS = 22,
+    /**
+     * Axis constant: Brake axis of a motion event.
+     *
+     * - For a joystick, reports the absolute position of the brake control.
+     * The value is normalized to a range from 0.0 (no braking) to 1.0 (maximum braking).
+     */
+    BRAKE = 23,
+    /**
+     * Axis constant: Distance axis of a motion event.
+     *
+     * - For a stylus, reports the distance of the stylus from the screen.
+     * A value of 0.0 indicates direct contact and larger values indicate increasing
+     * distance from the surface.
+     */
+    DISTANCE = 24,
+    /**
+     * Axis constant: Tilt axis of a motion event.
+     *
+     * - For a stylus, reports the tilt angle of the stylus in radians where
+     * 0 radians indicates that the stylus is being held perpendicular to the
+     * surface, and PI/2 radians indicates that the stylus is being held flat
+     * against the surface.
+     */
+    TILT = 25,
+    /**
+     * Axis constant:  Generic scroll axis of a motion event.
+     *
+     * - This is used for scroll axis motion events that can't be classified as strictly
+     *   vertical or horizontal. The movement of a rotating scroller is an example of this.
+     */
+    SCROLL = 26,
+    /**
+     * Axis constant: The movement of x position of a motion event.
+     *
+     * - For a mouse, reports a difference of x position between the previous position.
+     * This is useful when pointer is captured, in that case the mouse pointer doesn't
+     * change the location but this axis reports the difference which allows the app
+     * to see how the mouse is moved.
+     */
+    RELATIVE_X = 27,
+    /**
+     * Axis constant: The movement of y position of a motion event.
+     *
+     * Same as {@link RELATIVE_X}, but for y position.
+     */
+    RELATIVE_Y = 28,
+    /**
+     * Axis constant: Generic 1 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_1 = 32,
+    /**
+     * Axis constant: Generic 2 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_2 = 33,
+    /**
+     * Axis constant: Generic 3 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_3 = 34,
+    /**
+     * Axis constant: Generic 4 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_4 = 35,
+    /**
+     * Axis constant: Generic 5 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_5 = 36,
+    /**
+     * Axis constant: Generic 6 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_6 = 37,
+    /**
+     * Axis constant: Generic 7 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_7 = 38,
+    /**
+     * Axis constant: Generic 8 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_8 = 39,
+    /**
+     * Axis constant: Generic 9 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_9 = 40,
+    /**
+     * Axis constant: Generic 10 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_10 = 41,
+    /**
+     * Axis constant: Generic 11 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_11 = 42,
+    /**
+     * Axis constant: Generic 12 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_12 = 43,
+    /**
+     * Axis constant: Generic 13 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_13 = 44,
+    /**
+     * Axis constant: Generic 14 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_14 = 45,
+    /**
+     * Axis constant: Generic 15 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_15 = 46,
+    /**
+     * Axis constant: Generic 16 axis of a motion event.
+     * The interpretation of a generic axis is device-specific.
+     */
+    GENERIC_16 = 47,
+};
+
+/**
+ * Tool type of a pointer
+ */
+enum ToolType: uint8_t {
+    UNKNOWN = 0,
+    FINGER = 1,
+    STYLUS = 2,
+    MOUSE = 3,
+    ERASER = 4,
+};
+
+/**
+ * Properties of a particular pointer. Analogous to Android's PointerProperties.
+ */
+struct PointerProperties {
+    /**
+     * A number identifying a specific pointer. When a pointer is lifted,
+     * this value may be reused by another new pointer, even during the
+     * same gesture. For example, if there are two pointers touching the screen
+     * at the same time, they might have pointer ID's of 0 and 1. If the
+     * pointer with id = 0 is lifted, while the pointer with id = 1 remains, and
+     * a new pointer is placed on the screen, then the new pointer may receive
+     * an id of 0. While a pointer is active, it is guaranteed to keep the same
+     * id.
+     */
+    int32_t id;
+    /**
+     * Type of tool used to make contact, such as a finger or stylus, if known.
+     */
+    ToolType toolType;
+};
+
+/**
+ * Pointer coordinate data. Analogous to Android's PointerCoords.
+ */
+struct PointerCoords {
+    /**
+     * Bitfield of axes that are present in this structure.
+     */
+    bitfield<Axis> bits;
+    /**
+     * The values corresponding to each non-zero axis. This vector only
+     * contains non-zero entries. If an axis that is not currently specified
+     * in "bits" is requested, a zero value is returned.
+     * There are only as many values stored here
+     * as there are non-zero bits in the "bits" field.
+     * The values are position-packed. So the first non-zero axis will be
+     * at position 0, the next non-zero axis will be at position 1, and so on.
+     */
+    vec<float> values;
+};
+
+enum SourceClass: uint8_t {
+    NONE = 0 << 0,
+    BUTTON = 1 << 0,
+    POINTER = 1 << 1,
+    NAVIGATION = 1 << 2,
+    POSITION = 1 << 3,
+    JOYSTICK = 1 << 4,
+};
+
+/**
+ * Input sources
+ */
+enum Source: uint32_t {
+    UNKNOWN = 0,
+    KEYBOARD = (1 << 8) | SourceClass:BUTTON,
+    DPAD = (1 << 9) | SourceClass:BUTTON,
+    GAMEPAD = (1 << 10) | SourceClass:BUTTON,
+    TOUCHSCREEN = (1 << 12) | SourceClass:POINTER,
+    MOUSE = (1 << 13) | SourceClass:POINTER,
+    STYLUS = (1 << 14) | SourceClass:POINTER,
+    BLUETOOTH_STYLUS = (1 << 15) | STYLUS,
+    TRACKBALL = (1 << 16) | SourceClass:NAVIGATION,
+    MOUSE_RELATIVE = (1 << 17) | SourceClass:NAVIGATION,
+    TOUCHPAD = (1 << 20) | SourceClass:POSITION,
+    TOUCH_NAVIGATION = (1 << 21) | SourceClass:NONE,
+    ROTARY_ENCODER = (1 << 22) | SourceClass:NONE,
+    JOYSTICK = (1 << 24) | SourceClass:JOYSTICK,
+    ANY = 0xFFFFFF00,
+};
+
+/** Motion event actions */
+enum Action: int32_t {
+    /** A pressed gesture has started, the motion contains the initial starting location. */
+    DOWN = 0,
+    /**
+     * A pressed gesture has finished, the motion contains the final release location
+     * as well as any intermediate points since the last down or move event.
+     */
+    UP = 1,
+    /**
+     * A change has happened during a press gesture (between AMOTION_EVENT_ACTION_DOWN and
+     * AMOTION_EVENT_ACTION_UP). The motion contains the most recent point.
+     */
+    MOVE = 2,
+    /**
+     * The current gesture has been aborted.
+     * You will not receive any more points in it. You must treat this as
+     * an up event, but not perform any action that you normally would.
+     */
+    CANCEL = 3,
+    /**
+     * A movement has happened outside of the normal bounds of the UI element.
+     * This does not provide a full gesture, but only the initial location of the movement/touch.
+     */
+    OUTSIDE = 4,
+    /**
+     * A non-primary pointer has gone down.
+     */
+    POINTER_DOWN = 5,
+    /**
+     * A non-primary pointer has gone up.
+     */
+    POINTER_UP = 6,
+    /**
+     * A change happened but the pointer is not down (unlike AMOTION_EVENT_ACTION_MOVE).
+     * The motion contains the most recent point, as well as any intermediate points since
+     * the last hover move event.
+     */
+    HOVER_MOVE = 7,
+    /**
+     * The motion event contains relative vertical and/or horizontal scroll offsets.
+     * Use getAxisValue to retrieve the information from AMOTION_EVENT_AXIS_VSCROLL
+     * and AMOTION_EVENT_AXIS_HSCROLL.
+     * The pointer may or may not be down when this event is dispatched.
+     * The framework will always deliver this action to the window under the pointer, which
+     * may not be the window currently touched.
+     */
+    SCROLL = 8,
+    /**
+     * The pointer is not down but has entered the boundaries of a window or view.
+     */
+    HOVER_ENTER = 9,
+    /**
+     * The pointer is not down but has exited the boundaries of a window or view.
+     */
+    HOVER_EXIT = 10,
+    /**
+     * One or more buttons have been pressed.
+     */
+    BUTTON_PRESS = 11,
+    /**
+     * One or more buttons have been released.
+     */
+    BUTTON_RELEASE = 12,
+};
+
+/** Edge flags */
+enum EdgeFlag : int32_t {
+    /** No edges are intersected */
+    NONE = 0,
+    /** Motion intersected top edge of the screen */
+    TOP = 1 << 0,
+    /** Motion intersected bottom edge of the screen */
+    BOTTOM = 1 << 1,
+    /** Motion intersected left edge of the screen */
+    LEFT = 1 << 2,
+    /** Motion intersected right edge of the screen */
+    RIGHT = 1 << 3,
+};
+
+/** Policy flags */
+enum PolicyFlag : uint32_t {
+    // The following flags originate in RawEvents
+
+    /** Event should wake the device */
+    WAKE = 1 << 0,
+    /** Key is virtual, and should generate haptic feedback */
+    VIRTUAL = 1 << 1,
+    /** Key is the special function modifier */
+    FUNCTION = 1 << 2,
+    /**
+     * Key represents a special gesture that has been detected
+     * by the touch firmware or driver.
+     */
+    GESTURE = 1 << 3,
+
+    // The following flags may be generated here in the InputClassifier HAL
+    // or in later InputListener stages
+
+    /** Event was injected */
+    INJECTED = 1 << 24,
+    /**
+     * Event comes from a trusted source, such as a directly attached input
+     * device or an application with system-wide event injection permission.
+     */
+    TRUSTED = 1 << 25,
+    /** Event has passed through an input filter. */
+    FILTERED = 1 << 26,
+    /** Disable automatic key repeating behaviour. */
+    DISABLE_KEY_REPEAT = 1 << 27,
+
+    // The following flags are set by the input reader policy as it intercepts each event
+
+    /** Device was in an interactive state when the event was intercepted */
+    INTERACTIVE = 1 << 29,
+    /** Event should be dispatched to applications */
+    PASS_TO_USER = 1 << 30,
+};
+
+/**
+ * Buttons that are associated with motion events.
+ */
+enum Button : int32_t {
+    NONE = 0,
+    PRIMARY = 1 << 0,
+    SECONDARY = 1 << 1,
+    TERTIARY = 1 << 2,
+    BACK = 1 << 3,
+    FORWARD = 1 << 4,
+    STYLUS_PRIMARY = 1 << 5,
+    STYLUS_SECONDARY = 1 << 6,
+};
+
+/**
+ * Meta key / modifier state
+ */
+enum Meta : int32_t {
+    NONE = 0,
+
+    /** One of the ALT meta keys is pressed. */
+    ALT_ON = 1 << 1, // 0x02
+
+    /** The left ALT meta key is pressed. */
+    ALT_LEFT_ON = 1 << 4, // 0x10
+
+    /** The right ALT meta key is pressed. */
+    ALT_RIGHT_ON = 1 << 5, // 0x20
+
+    /** One of the SHIFT meta keys is pressed. */
+    SHIFT_ON = 1 << 0, // 0x01
+
+    /** The left SHIFT meta key is pressed. */
+    SHIFT_LEFT_ON = 1 << 6, // 0x40
+
+    /** The right SHIFT meta key is pressed. */
+    SHIFT_RIGHT_ON = 1 << 7, // 0x80
+
+    /** The SYM meta key is pressed. */
+    SYM_ON = 1 << 2, // 0x04
+
+    /** The FUNCTION meta key is pressed. */
+    FUNCTION_ON = 1 << 3, // 0x08
+
+    /** One of the CTRL meta keys is pressed. */
+    CTRL_ON = 1 << 12, // 0x1000
+
+    /** The left CTRL meta key is pressed. */
+    CTRL_LEFT_ON = 1 << 13, // 0x2000
+
+    /** The right CTRL meta key is pressed. */
+    CTRL_RIGHT_ON = 1 << 14, // 0x4000
+
+    /** One of the META meta keys is pressed. */
+    META_ON = 1 << 16, // 0x10000
+
+    /** The left META meta key is pressed. */
+    META_LEFT_ON = 1 << 17, // 0x20000
+
+    /** The right META meta key is pressed. */
+    META_RIGHT_ON = 1 << 18, //0x40000
+
+    /** The CAPS LOCK meta key is on. */
+    CAPS_LOCK_ON = 1 << 20, // 0x100000
+
+    /** The NUM LOCK meta key is on. */
+    NUM_LOCK_ON = 1 << 21, // 0x200000
+
+    /** The SCROLL LOCK meta key is on. */
+    SCROLL_LOCK_ON = 1 << 22, // 0x400000
+};
+
+/**
+ * Motion event flags
+ */
+enum Flag : int32_t {
+    /**
+     * Indicates that the window that received this motion event is partly
+     * or wholly obscured by another visible window above it. This flag is set to true
+     * even if the event did not directly pass through the obscured area.
+     * A security sensitive application can check this flag to identify situations in which
+     * a malicious application may have covered up part of its content for the purpose
+     * of misleading the user or hijacking touches. An appropriate response might be
+     * to drop the suspect touches or to take additional precautions to confirm the user's
+     * actual intent.
+     */
+    WINDOW_IS_OBSCURED = 1 << 0,
+    /**
+     * This flag indicates that the event has been generated by a gesture generator. It
+     * could be used, for example, to determine whether touch slop should be applied.
+     */
+    IS_GENERATED_GESTURE = 1 << 3, // 0x8
+    /**
+     * Motion event is inconsistent with previously sent motion events.
+     */
+    TAINTED = 1 << 31, // 0x80000000
+};
+
+/**
+ * Touch heatmap.
+ *
+ * The array is a 2-D row-major matrix with dimensions (height, width).
+ * The heatmap data is rotated when device orientation changes.
+ *
+ * Example:
+ *
+ * If the data in the array is:
+ * data[i] = i for i in 0 .. 59,
+ * then it can be represented as a 10 x 6 matrix:
+ *
+ *  <--   width   -->
+ *   0  1  2  3  4  5   ^
+ *   6  7  8  9 10 11   |
+ *  12 13 14 15 16 17   |
+ *  18    ...      23   |
+ *  24    ...      29   | height
+ *  30    ...      35   |
+ *  36    ...      41   |
+ *  42    ...      47   |
+ *  48    ...      53   |
+ *  54    ...      59   v
+ *
+ * Looking at the device in standard portrait orientation,
+ * the element "0" is the top left of the screen,
+ * "5" is at the top right, and "59" is the bottom right.
+ * Here height=10 and width=6.
+ *
+ * If the screen orientation changes to landscape (a 90 degree orientation
+ * change), the frame's dimensions will become 6 x 10
+ * and the data will look as follows:
+ * 54 48 42 36 30 24 18 12  6  0     ^
+ * ...                  13  7  1     |
+ * ...                  14  8  2     | height
+ * ...                  15  9  3     |
+ * ...                  16 10  4     |
+ * 59 53 47 41 35 29 23 17 11  5     v
+ * <--        width          -->
+ *
+ * Here the element "0" is at the physical top left of the unrotated screen.
+ *
+ * Since the coordinates of a MotionEvent are also adjusted based on the
+ * orientation, the rotation of the video frame data ensures that
+ * the axes for MotionEvent and VideoFrame data are consistent.
+ */
+struct VideoFrame {
+    /**
+     * Video frame data.
+     * Size of the data is height * width.
+     */
+    vec<int16_t> data;
+    uint32_t height;
+    uint32_t width;
+    /**
+     * Time at which the frame was collected, in nanoseconds.
+     * Measured with the same clock that is used to populate MotionEvent times.
+     */
+    uint64_t timestamp;
+};
+
+/**
+ * Analogous to Android's native MotionEvent / NotifyMotionArgs.
+ * Stores the basic information about pointer movements.
+ */
+struct MotionEvent {
+    // InputEvent fields
+    /**
+     * The id of the device which produced this event.
+     */
+    int32_t deviceId;
+    /**
+     * The source type of this event.
+     */
+    Source source;
+    /**
+     * The display id associated with this event.
+     */
+    int32_t displayId;
+
+    // NotifyMotionArgs fields
+    /**
+     * Time when the initial touch down occurred, in nanoseconds.
+     */
+    int64_t downTime;
+    /**
+     * Time when this event occurred, in nanoseconds.
+     */
+    int64_t eventTime;
+    /**
+     * The kind of action being performed.
+     */
+    Action action;
+    /**
+     * For ACTION_POINTER_DOWN or ACTION_POINTER_UP, this contains the associated pointer index.
+     * The index may be used to get information about the pointer that has gone down or up.
+     */
+    uint8_t actionIndex;
+    /**
+     * The button that has been modified during a press or release action.
+     */
+    Button actionButton;
+    /**
+     * The motion event flags.
+     */
+    bitfield<Flag> flags;
+    /**
+     * The motion event policy flags.
+     */
+    bitfield<PolicyFlag> policyFlags;
+    /**
+     * The edges, if any, that were touched by this motion event.
+     */
+    bitfield<EdgeFlag> edgeFlags;
+    /**
+     * The state of any meta / modifier keys that were in effect when the event was generated.
+     */
+    bitfield<Meta> metaState;
+    /**
+     * The state of buttons that are pressed.
+     */
+    bitfield<Button> buttonState;
+    /**
+     * The precision of the X coordinate being reported.
+     */
+    float xPrecision;
+    /**
+     * The precision of the Y coordinate being reported.
+     */
+    float yPrecision;
+    /**
+     * The properties of each pointer present in this motion event.
+     */
+    vec<PointerProperties> pointerProperties;
+    /**
+     * The coordinates of each pointer.
+     */
+    vec<PointerCoords> pointerCoords;
+
+    // Additional fields from NotifyMotionArgs
+    /**
+     * Device time at which the event occurred, in microseconds.
+     * Will wrap after a little over an hour.
+     */
+    uint32_t deviceTimestamp;
+    /**
+     * The video frames, if any, associated with the current or previous motion events.
+     */
+    vec<VideoFrame> frames;
+};
+
+
+enum Classification : uint8_t {
+    NONE = 0,
+    /**
+     * Too early to classify the gesture, need more events.
+     */
+    AMBIGUOUS_GESTURE = 1,
+    /**
+     * User is force-pressing the screen.
+     */
+    DEEP_PRESS = 2,
+};
diff --git a/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp b/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
index a2b43f0..a9c6f6c 100644
--- a/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
+++ b/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
@@ -181,7 +181,35 @@
     return d2i_X509(nullptr, &p, blob.size());
 }
 
-bool verify_chain(const hidl_vec<hidl_vec<uint8_t>>& chain) {
+bool verify_chain(const hidl_vec<hidl_vec<uint8_t>>& chain, const std::string& msg,
+                  const std::string& signature) {
+    {
+        EVP_MD_CTX md_ctx_verify;
+        X509_Ptr signing_cert(parse_cert_blob(chain[0]));
+        EVP_PKEY_Ptr signing_pubkey(X509_get_pubkey(signing_cert.get()));
+        EXPECT_TRUE(signing_pubkey);
+        ERR_print_errors_cb(
+            [](const char* str, size_t len, void* ctx) -> int {
+                (void)ctx;
+                std::cerr << std::string(str, len) << std::endl;
+                return 1;
+            },
+            nullptr);
+
+        EVP_MD_CTX_init(&md_ctx_verify);
+
+        bool result = false;
+        EXPECT_TRUE((result = EVP_DigestVerifyInit(&md_ctx_verify, NULL, EVP_sha256(), NULL,
+                                                   signing_pubkey.get())));
+        EXPECT_TRUE(
+            (result = result && EVP_DigestVerifyUpdate(&md_ctx_verify, msg.c_str(), msg.size())));
+        EXPECT_TRUE((result = result && EVP_DigestVerifyFinal(
+                                            &md_ctx_verify,
+                                            reinterpret_cast<const uint8_t*>(signature.c_str()),
+                                            signature.size())));
+        EVP_MD_CTX_cleanup(&md_ctx_verify);
+        if (!result) return false;
+    }
     for (size_t i = 0; i < chain.size(); ++i) {
         X509_Ptr key_cert(parse_cert_blob(chain[i]));
         X509_Ptr signing_cert;
@@ -3833,8 +3861,8 @@
     ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
                                              .Authorization(TAG_NO_AUTH_REQUIRED)
                                              .RsaSigningKey(2048, 65537)
-                                             .Digest(Digest::NONE)
-                                             .Padding(PaddingMode::NONE)
+                                             .Digest(Digest::SHA_2_256)
+                                             .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)
                                              .Authorization(TAG_INCLUDE_UNIQUE_ID)));
 
     hidl_vec<hidl_vec<uint8_t>> cert_chain;
@@ -3844,7 +3872,13 @@
                             .Authorization(TAG_ATTESTATION_APPLICATION_ID, HidlBuf("foo")),
                         &cert_chain));
     EXPECT_GE(cert_chain.size(), 2U);
-    EXPECT_TRUE(verify_chain(cert_chain));
+
+    string message = "12345678901234567890123456789012";
+    string signature = SignMessage(message, AuthorizationSetBuilder()
+                                                .Digest(Digest::SHA_2_256)
+                                                .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN));
+
+    EXPECT_TRUE(verify_chain(cert_chain, message, signature));
     EXPECT_TRUE(verify_attestation_record("challenge", "foo",                     //
                                           key_characteristics_.softwareEnforced,  //
                                           key_characteristics_.hardwareEnforced,  //
@@ -3890,34 +3924,11 @@
                             .Authorization(TAG_ATTESTATION_APPLICATION_ID, HidlBuf("foo")),
                         &cert_chain));
     EXPECT_GE(cert_chain.size(), 2U);
-    EXPECT_TRUE(verify_chain(cert_chain));
 
-    EXPECT_TRUE(verify_attestation_record("challenge", "foo",                     //
-                                          key_characteristics_.softwareEnforced,  //
-                                          key_characteristics_.hardwareEnforced,  //
-                                          SecLevel(), cert_chain[0]));
-}
+    string message(1024, 'a');
+    string signature = SignMessage(message, AuthorizationSetBuilder().Digest(Digest::SHA_2_256));
 
-/*
- * AttestationTest.EcAttestationByKeySize
- *
- * Verifies that attesting to EC keys works and generates the expected output.
- */
-TEST_F(AttestationTest, EcAttestationByKeySize) {
-    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
-                                             .Authorization(TAG_NO_AUTH_REQUIRED)
-                                             .EcdsaSigningKey(256)
-                                             .Digest(Digest::SHA_2_256)
-                                             .Authorization(TAG_INCLUDE_UNIQUE_ID)));
-
-    hidl_vec<hidl_vec<uint8_t>> cert_chain;
-    ASSERT_EQ(ErrorCode::OK,
-              AttestKey(AuthorizationSetBuilder()
-                            .Authorization(TAG_ATTESTATION_CHALLENGE, HidlBuf("challenge"))
-                            .Authorization(TAG_ATTESTATION_APPLICATION_ID, HidlBuf("foo")),
-                        &cert_chain));
-    EXPECT_GE(cert_chain.size(), 2U);
-    EXPECT_TRUE(verify_chain(cert_chain));
+    EXPECT_TRUE(verify_chain(cert_chain, message, signature));
 
     EXPECT_TRUE(verify_attestation_record("challenge", "foo",                     //
                                           key_characteristics_.softwareEnforced,  //
diff --git a/media/bufferpool/2.0/Android.bp b/media/bufferpool/2.0/Android.bp
new file mode 100644
index 0000000..1f8bbdb
--- /dev/null
+++ b/media/bufferpool/2.0/Android.bp
@@ -0,0 +1,28 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.media.bufferpool@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IAccessor.hal",
+        "IClientManager.hal",
+        "IConnection.hal",
+        "IObserver.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "Buffer",
+        "BufferInvalidationMessage",
+        "BufferStatus",
+        "BufferStatusMessage",
+        "ResultStatus",
+    ],
+    gen_java: false,
+}
+
diff --git a/media/bufferpool/2.0/IAccessor.hal b/media/bufferpool/2.0/IAccessor.hal
new file mode 100644
index 0000000..b889518
--- /dev/null
+++ b/media/bufferpool/2.0/IAccessor.hal
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.bufferpool@2.0;
+
+import IConnection;
+import IObserver;
+/**
+ * IAccessor creates IConnection which is used from IClientManager in order to
+ * use functionality of the specified buffer pool.
+ */
+interface IAccessor {
+
+    /**
+     * Registers a new client and creates IConnection to the buffer pool for
+     * the client. IConnection and FMQ are used by IClientManager in order to
+     * communicate with the buffer pool. Via FMQ IClientManager sends
+     * BufferStatusMesage(s) to the buffer pool.
+     *
+     * FMQ is used to send buffer ownership status changes to a buffer pool
+     * from a buffer pool client. A buffer pool synchronizes FMQ messages when
+     * there is a hidl request from the clients. Every client has its own
+     * connection and FMQ to communicate with the buffer pool. So sending an
+     * FMQ message on behalf of other clients is not possible.
+     *
+     * FMQ messages are sent when a buffer is acquired or released. Also, FMQ
+     * messages are sent when a buffer is transferred from a client to another
+     * client. FMQ has its own ID from a buffer pool. A client is specified
+     * with the ID.
+     *
+     * To transfer a buffer, a sender must send an FMQ message. The message
+     * must include a receiver's ID and a transaction ID. A receiver must send
+     * the transaction ID to fetch a buffer from a buffer pool. Since the
+     * sender already registered the receiver via an FMQ message, The buffer
+     * pool must verify the receiver with the transaction ID. In order to
+     * prevent faking a receiver, a connection to a buffer pool from client is
+     * made and kept private. Also part of transaction ID is a sender ID in
+     * order to prevent fake transactions from other clients. This must be
+     * verified with an FMQ message from a buffer pool.
+
+     * @param observer The buffer pool event observer from the client.
+     *     Observer is provided to ensure FMQ messages are processed even when
+     *     client processes are idle. Buffer invalidation caused by
+     *     reconfiguration does not call observer. Buffer invalidation caused
+     *     by termination of pipeline call observer in order to ensure
+     *     invalidation is done after pipeline completion.
+     *
+     * @return status The status of the call.
+     *     OK               - A connection is made successfully.
+     *     NO_MEMORY        - Memory allocation failure occurred.
+     *     ALREADY_EXISTS   - A connection was already made.
+     *     CRITICAL_ERROR   - Other errors.
+     * @return connection The IConnection have interfaces
+     *     to get shared buffers from the buffer pool.
+     * @return connectionId Id of IConnection. The Id identifies
+     *     sender and receiver in FMQ messages during buffer transfer.
+     * @return msgId Id of the most recent message from buffer pool.
+     * @return toFmqDesc FMQ descriptor. The descriptor is used to
+     *     post buffer status messages.
+     * @return fromFmqDesc FMQ descriptor. The descriptor is used to
+     *     receive buffer invalidation messages from the buffer pool.
+     */
+    connect(IObserver observer)
+        generates (ResultStatus status, IConnection connection,
+                   int64_t connectionId,
+                   uint32_t msgId,
+                   fmq_sync<BufferStatusMessage> toFmqDesc,
+                   fmq_unsync<BufferInvalidationMessage> fromFmqDesc);
+};
diff --git a/media/bufferpool/2.0/IClientManager.hal b/media/bufferpool/2.0/IClientManager.hal
new file mode 100644
index 0000000..9253bda
--- /dev/null
+++ b/media/bufferpool/2.0/IClientManager.hal
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.bufferpool@2.0;
+
+import IAccessor;
+
+/**
+ * IClientManager manages IConnection(s) inside a process. A locally
+ * created IConnection represents a communication node(receiver) with the
+ * specified buffer pool(IAccessor).
+ * IConnection(s) are not exposed to other processes(IClientManager).
+ * IClientManager instance must be unique within a process.
+ */
+interface IClientManager {
+
+    /**
+     * Sets up a buffer receiving communication node for the specified
+     * buffer pool. A manager must create a IConnection to the buffer
+     * pool if it does not already have a connection.
+     *
+     * @param bufferPool a buffer pool which is specified with the IAccessor.
+     *     The specified buffer pool is the owner of received buffers.
+     * @return status The status of the call.
+     *     OK               - A sender was set successfully.
+     *     NO_MEMORY        - Memory allocation failure occurred.
+     *     ALREADY_EXISTS   - A sender was registered already.
+     *     CRITICAL_ERROR   - Other errors.
+     * @return connectionId the Id of the communication node to the buffer pool.
+     *     This id is used in FMQ to notify IAccessor that a buffer has been
+     *     sent to that connection during transfers.
+     */
+    registerSender(IAccessor bufferPool) generates
+        (ResultStatus status, int64_t connectionId);
+};
diff --git a/media/bufferpool/2.0/IConnection.hal b/media/bufferpool/2.0/IConnection.hal
new file mode 100644
index 0000000..629f83c
--- /dev/null
+++ b/media/bufferpool/2.0/IConnection.hal
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.bufferpool@2.0;
+
+/**
+ * A connection to a buffer pool which handles requests from a buffer pool
+ * client. The connection must be made in order to receive buffers from
+ * other buffer pool clients.
+ */
+interface IConnection {
+
+    /**
+     * Retrieves a buffer using bufferId. The method must be called from
+     * receiving side of buffer during transferring only when the specified
+     * buffer is neither cached nor used. This fails if the specified
+     * transaction is not valid.
+     *
+     * @param transactionId Unique transaction id for buffer transferring.
+     * @param bufferId Id of the buffer to be fetched.
+     * @return status The status of the call.
+     *     OK               - A buffer was fetched successfully.
+     *     NO_MEMORY        - Memory allocation failure occurred.
+     *     NOT_FOUND        - A buffer was not found due to invalidation.
+     *     CRITICAL_ERROR   - Other errors.
+     * @return buffer The actual buffer which is specified with bufferId.
+     */
+    fetch(uint64_t transactionId, uint32_t bufferId) generates
+        (ResultStatus status, Buffer buffer);
+};
diff --git a/media/bufferpool/2.0/IObserver.hal b/media/bufferpool/2.0/IObserver.hal
new file mode 100644
index 0000000..62f247e
--- /dev/null
+++ b/media/bufferpool/2.0/IObserver.hal
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.bufferpool@2.0;
+
+/**
+ * IObserver listens on notifications from the buffer pool. On receiving
+ * notifications, FMQ messages from the specific buffer pool which are already
+ * in the FMQ are processed.
+ */
+interface IObserver {
+
+    /**
+     * The specific buffer pool sent a message to the client. Calling this
+     * method from the buffer pool enforces a buffer pool client process the
+     * message.
+     *
+     * @param connectionId the connection Id of the specific buffer pool client
+     * @param msgId Id of the most recent message
+     */
+    oneway onMessage(int64_t connectionId, uint32_t msgId);
+};
diff --git a/media/bufferpool/2.0/README.md b/media/bufferpool/2.0/README.md
new file mode 100644
index 0000000..ed985d8
--- /dev/null
+++ b/media/bufferpool/2.0/README.md
@@ -0,0 +1,54 @@
+1. Overview
+
+A buffer pool enables processes to transfer buffers asynchronously.
+Without a buffer pool, a process calls a synchronous method of the other
+process and waits until the call finishes transferring a buffer. This adds
+unwanted latency due to context switching. With help from a buffer pool, a
+process can pass buffers asynchronously and reduce context switching latency.
+
+Passing an interface and a handle adds extra latency also. To mitigate the
+latency, passing IDs with local cache is used. For security concerns about
+rogue clients, FMQ is used to communicate between a buffer pool and a client
+process. FMQ is used to send buffer ownership change status from a client
+process to a buffer pool. Except FMQ, a buffer pool does not use any shared
+memory.
+
+2. FMQ
+
+FMQ is used to send buffer ownership status changes to a buffer pool from a
+buffer pool client. A buffer pool synchronizes FMQ messages when there is a
+hidl request from the clients. Every client has its own connection and FMQ
+to communicate with the buffer pool. So sending an FMQ message on behalf of
+other clients is not possible.
+
+FMQ messages are sent when a buffer is acquired or released. Also, FMQ messages
+are sent when a buffer is transferred from a client to another client. FMQ has
+its own ID from a buffer pool. A client is specified with the ID.
+
+To transfer a buffer, a sender must send an FMQ message. The message must
+include a receiver's ID and a transaction ID. A receiver must send the
+transaction ID to fetch a buffer from a buffer pool. Since the sender already
+registered the receiver via an FMQ message, The buffer pool must verify the
+receiver with the transaction ID. In order to prevent faking a receiver, a
+connection to a buffer pool from client is made and kept privately. Also part of
+transaction ID is a sender ID in order to prevent fake transactions from other
+clients. This must be verified with an FMQ message from a buffer pool.
+
+FMQ messages are defined in BufferStatus and BufferStatusMessage of 'types.hal'.
+
+3. Interfaces
+
+IConnection
+A connection to a buffer pool from a buffer pool client. The connection
+provides the functionalities to share buffers between buffer pool clients.
+The connection must be unique for each client.
+
+IAccessor
+An accessor to a buffer pool which makes a connection to the buffer pool.
+IAccesssor#connect creates an IConnection.
+
+IClientManager
+A manager of buffer pool clients and clients' connections to buffer pools. It
+sets up a process to be a receiver of buffers from a buffer pool. The manager
+is unique in a process.
+
diff --git a/media/bufferpool/2.0/types.hal b/media/bufferpool/2.0/types.hal
new file mode 100644
index 0000000..597e7b3
--- /dev/null
+++ b/media/bufferpool/2.0/types.hal
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.bufferpool@2.0;
+
+enum ResultStatus : int32_t {
+    OK                  = 0,
+
+    NO_MEMORY           = 1,
+    ALREADY_EXISTS      = 2,
+    NOT_FOUND           = 3,
+    CRITICAL_ERROR      = 4,
+};
+
+/**
+ * Generic buffer for fast recycling for media/stagefright.
+ *
+ * During media pipeline buffer references are created, shared and
+ * destroyed frequently. The underlying buffers are allocated on demand
+ * by a buffer pool, and are recycled to the buffer pool when they are
+ * no longer referenced by the clients.
+ *
+ * E.g. ion or gralloc buffer
+ */
+struct Buffer {
+    uint32_t id;
+    handle buffer;
+};
+
+/**
+ * Buffer ownership status for the specified client.
+ * Buffer transfer status for the specified buffer transafer transaction.
+ * BufferStatus is posted along with BufferStatusMessage from a client to
+ * the buffer pool for synchronization after status change.
+ */
+enum BufferStatus : int32_t {
+    /** No longer used by the specified client. */
+    NOT_USED            = 0,
+    /** Buffer is acquired by the specified client. */
+    USED                = 1,
+    /** Buffer is sent by the specified client. */
+    TRANSFER_TO         = 2,
+    /** Buffer transfer is acked by the receiver client. */
+    TRANSFER_FROM       = 3,
+    /** Buffer transfer is timed out by receiver client. */
+    TRANSFER_TIMEOUT    = 4,
+    /** Buffer transfer is not acked by the receiver. */
+    TRANSFER_LOST       = 5,
+    /** Buffer fetch request from the client. */
+    TRANSFER_FETCH      = 6,
+    /** Buffer transaction succeeded. */
+    TRANSFER_OK         = 7,
+    /** Buffer transaction failure. */
+    TRANSFER_ERROR      = 8,
+    /** Buffer invalidation ack. */
+    INVALIDATION_ACK    = 9,
+};
+
+/**
+ * Buffer ownership status change message. This message is
+ * sent via fmq to the buffer pool from client processes.
+ */
+struct BufferStatusMessage {
+    /**
+     * Transaction Id = (SenderId : sender local transaction Id)
+     * Transaction Id is created from sender and posted via fmq within
+     * TRANSFER_TO message.
+     */
+    uint64_t transactionId;
+    uint32_t bufferId;
+    BufferStatus newStatus;
+    /** Used by the buffer pool. not by client. */
+    int64_t connectionId;
+    /** Valid only when TRANSFER_TO is posted. */
+    int64_t targetConnectionId;
+    /**
+     * Used by the buffer pool, not by client.
+     * Monotonic timestamp in Us since fixed point in time as decided
+     * by the sender of the message
+     */
+    int64_t timestampUs;
+};
+
+/*
+ * Buffer pool sends a buffer invalidation message to clients in order to
+ * ensure fast reclamation of the buffers. Clients must free the invalidated
+ * buffers as soon as possible upon receiving the message.
+ */
+struct BufferInvalidationMessage {
+    uint32_t messageId;
+    /**
+     * Buffers from fromBufferId to toBufferId must be invalidated.
+     * fromBufferId is inclusive, but toBufferId is not inclusive.
+     * If fromBufferId > toBufferID, wrap happens. In that case
+     * the wrap is based on UINT32_MAX.
+     */
+    uint32_t fromBufferId;
+    uint32_t toBufferId;
+};
diff --git a/media/c2/1.0/Android.bp b/media/c2/1.0/Android.bp
new file mode 100644
index 0000000..56c78b2
--- /dev/null
+++ b/media/c2/1.0/Android.bp
@@ -0,0 +1,52 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.media.c2@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IComponent.hal",
+        "IComponentInterface.hal",
+        "IComponentListener.hal",
+        "IComponentStore.hal",
+        "IConfigurable.hal",
+        "IInputSink.hal",
+        "IInputSurface.hal",
+        "IInputSurfaceConnection.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.bufferqueue@1.0",
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.media.bufferpool@2.0",
+        "android.hardware.media.omx@1.0",
+        "android.hardware.media@1.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "BaseBlock",
+        "Block",
+        "Buffer",
+        "FieldDescriptor",
+        "FieldId",
+        "FieldSupportedValues",
+        "FieldSupportedValuesQuery",
+        "FieldSupportedValuesQueryResult",
+        "FrameData",
+        "InfoBuffer",
+        "ParamDescriptor",
+        "ParamField",
+        "ParamFieldValues",
+        "SettingResult",
+        "Status",
+        "StructDescriptor",
+        "Work",
+        "WorkBundle",
+        "WorkOrdinal",
+        "Worklet",
+    ],
+    gen_java: false,
+}
+
diff --git a/media/c2/1.0/IComponent.hal b/media/c2/1.0/IComponent.hal
new file mode 100644
index 0000000..7fd551f
--- /dev/null
+++ b/media/c2/1.0/IComponent.hal
@@ -0,0 +1,365 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import android.hardware.graphics.bufferqueue@1.0::IGraphicBufferProducer;
+import android.hardware.media.omx@1.0::IGraphicBufferSource;
+
+import IConfigurable;
+import IComponentInterface;
+import IComponentListener;
+import IInputSurface;
+import IInputSurfaceConnection;
+
+/**
+ * Interface for a Codec2 component corresponding to API level 1.0 or below.
+ * Components have two states: stopped and running. The running state has three
+ * sub-states: executing, tripped and error.
+ *
+ * All methods in `IComponent` must not block. If a method call cannot be
+ * completed in a timely manner, it must return `TIMED_OUT` in the return
+ * status.
+ */
+interface IComponent {
+
+    // METHODS AVAILABLE WHEN RUNNING
+    // =========================================================================
+
+    /**
+     * Queues up work for the component.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * It is acceptable for this method to return `OK` and return an error value
+     * using the IComponentListener::onWorkDone() callback.
+     *
+     * @param workBundle `WorkBundle` object containing a list of `Work` objects
+     *     to queue to the component.
+     * @return status Status of the call, which may be
+     *   - `OK`        - Works in @p workBundle were successfully queued.
+     *   - `BAD_INDEX` - Some component id in some `Worklet` is not valid.
+     *   - `CANNOT_DO` - The components are not tunneled but some `Work` object
+     *                   contains tunneling information.
+     *   - `NO_MEMORY` - Not enough memory to queue @p workBundle.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    queue(WorkBundle workBundle) generates (Status status);
+
+    /**
+     * Discards and abandons any pending `Work` items for the component.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * `Work` that could be immediately abandoned/discarded must be returned in
+     * @p flushedWorkBundle. The order in which queued `Work` items are
+     * discarded can be arbitrary.
+     *
+     * `Work` that could not be abandoned or discarded immediately must be
+     * marked to be discarded at the earliest opportunity, and must be returned
+     * via IComponentListener::onWorkDone(). This must be completed within
+     * 500ms.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component has been successfully flushed.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return flushedWorkBundle `WorkBundle` object containing flushed `Work`
+     *     items.
+     */
+    flush(
+        ) generates (
+            Status status,
+            WorkBundle flushedWorkBundle
+        );
+
+    /**
+     * Drains the component, and optionally downstream components. This is a
+     * signalling method; as such it does not wait for any work completion.
+     *
+     * The last `Work` item is marked as "drain-till-here", so the component is
+     * notified not to wait for further `Work` before it processes what is
+     * already queued. This method can also be used to set the end-of-stream
+     * flag after `Work` has been queued. Client can continue to queue further
+     * `Work` immediately after this method returns.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * `Work` that is completed must be returned via
+     * IComponentListener::onWorkDone().
+     *
+     * @param withEos Whether to drain the component with marking end-of-stream.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The drain request has been successfully recorded.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    drain(bool withEos) generates (Status status);
+
+    /**
+     * Starts using a surface for output.
+     *
+     * This method must not block.
+     *
+     * @param blockPoolId Id of the `C2BlockPool` to be associated with the
+     *     output surface.
+     * @param surface Output surface.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `CANNOT_DO` - The component does not support an output surface.
+     *   - `REFUSED`   - The output surface cannot be accessed.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    setOutputSurface(
+            uint64_t blockPoolId,
+            IGraphicBufferProducer surface
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Starts using an input surface.
+     *
+     * The component must be in running state.
+     *
+     * @param inputSurface Input surface to connect to.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `CANNOT_DO` - The component does not support an input surface.
+     *   - `BAD_STATE` - The component is not in running state.
+     *   - `DUPLICATE` - The component is already connected to an input surface.
+     *   - `REFUSED`   - The input surface is already in use.
+     *   - `NO_MEMORY` - Not enough memory to start the component.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return connection `IInputSurfaceConnection` object, which can be used to
+     *     query and configure properties of the connection. This cannot be
+     *     null.
+     */
+    connectToInputSurface(
+            IInputSurface inputSurface
+        ) generates (
+            Status status,
+            IInputSurfaceConnection connection
+        );
+
+    /**
+     * Starts using an OMX input surface.
+     *
+     * The component must be in running state.
+     *
+     * This method is similar to connectToInputSurface(), but it takes an OMX
+     * input surface (as a pair of `IGraphicBufferProducer` and
+     * `IGraphicBufferSource`) instead of Codec2's own `IInputSurface`.
+     *
+     * @param producer Producer component of an OMX input surface.
+     * @param source Source component of an OMX input surface.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `CANNOT_DO` - The component does not support an OMX input surface.
+     *   - `BAD_STATE` - The component is not in running state.
+     *   - `DUPLICATE` - The component is already connected to an input surface.
+     *   - `REFUSED`   - The input surface is already in use.
+     *   - `NO_MEMORY` - Not enough memory to start the component.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return connection `IInputSurfaceConnection` object, which can be used to
+     *     query and configure properties of the connection. This cannot be
+     *     null.
+     */
+    connectToOmxInputSurface(
+            IGraphicBufferProducer producer,
+            IGraphicBufferSource source
+        ) generates (
+            Status status,
+            IInputSurfaceConnection connection
+        );
+
+    /**
+     * Stops using an input surface.
+     *
+     * The component must be in running state.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `CANNOT_DO` - The component does not support an input surface.
+     *   - `BAD_STATE` - The component is not in running state.
+     *   - `NOT_FOUND` - The component is not connected to an input surface.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    disconnectFromInputSurface() generates (Status Status);
+
+    /**
+     * Creates a local `C2BlockPool` backed by the given allocator and returns
+     * its id.
+     *
+     * The returned @p blockPoolId is the only way the client can refer to a
+     * `C2BlockPool` object in the component. The id can be passed to
+     * setOutputSurface() or used in some C2Param objects later.
+     *
+     * The created `C2BlockPool` object can be destroyed by calling
+     * destroyBlockPool(), reset() or release(). reset() and release() must
+     * destroy all `C2BlockPool` objects that have been created.
+     *
+     * @param allocatorId Id of a `C2Allocator`.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `NO_MEMORY` - Not enough memory to create the pool.
+     *   - `BAD_VALUE` - @p allocatorId is not recognized.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return blockPoolId Id of the created C2BlockPool object. This may be
+     *     used in setOutputSurface() if the allocator
+     * @return configurable Configuration interface for the created pool. This
+     *     must not be null.
+     */
+    createBlockPool(uint32_t allocatorId) generates (
+        Status status,
+        uint64_t blockPoolId,
+        IConfigurable configurable
+    );
+
+    /**
+     * Destroys a local block pool previously created by createBlockPool().
+     *
+     * @param blockPoolId Id of a `C2BlockPool` that was previously returned by
+     *      createBlockPool().
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `NOT_FOUND` - The supplied blockPoolId is not valid.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    destroyBlockPool(uint64_t blockPoolId) generates (Status status);
+
+    // STATE CHANGE METHODS
+    // =========================================================================
+
+    /**
+     * Starts the component.
+     *
+     * This method must be supported in stopped state as well as tripped state.
+     *
+     * If the return value is `OK`, the component must be in the running state.
+     * If the return value is `BAD_STATE` or `DUPLICATE`, no state change is
+     * expected as a response to this call. Otherwise, the component must be in
+     * the stopped state.
+     *
+     * If a component is in the tripped state and start() is called while the
+     * component configuration still results in a trip, start() must succeed and
+     * a new onTripped() callback must be used to communicate the configuration
+     * conflict that results in the new trip.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component has started successfully.
+     *   - `BAD_STATE` - Component is not in stopped or tripped state.
+     *   - `DUPLICATE` - When called during another start call from another
+     *                   thread.
+     *   - `NO_MEMORY` - Not enough memory to start the component.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    start() generates (Status status);
+
+    /**
+     * Stops the component.
+     *
+     * This method must be supported in running (including tripped) state.
+     *
+     * This method must return withing 500ms.
+     *
+     * Upon this call, all pending `Work` must be abandoned.
+     *
+     * If the return value is `BAD_STATE` or `DUPLICATE`, no state change is
+     * expected as a response to this call. For all other return values, the
+     * component must be in the stopped state.
+     *
+     * This does not alter any settings and tunings that may have resulted in a
+     * tripped state.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component has stopped successfully.
+     *   - `BAD_STATE` - Component is not in running state.
+     *   - `DUPLICATE` - When called during another stop call from another
+     *                   thread.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    stop() generates (Status status);
+
+    /**
+     * Resets the component.
+     *
+     * This method must be supported in all (including tripped) states other
+     * than released.
+     *
+     * This method must be supported during any other blocking call.
+     *
+     * This method must return withing 500ms.
+     *
+     * When this call returns, if @p status is `OK`, all `Work` items must
+     * have been abandoned, and all resources (including `C2BlockPool` objects
+     * previously created by createBlockPool()) must have been released.
+     *
+     * If the return value is `BAD_STATE` or `DUPLICATE`, no state change is
+     * expected as a response to this call. For all other return values, the
+     * component must be in the stopped state.
+     *
+     * This brings settings back to their default, "guaranteeing" no tripped
+     * state.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component has been reset.
+     *   - `BAD_STATE` - Component is in released state.
+     *   - `DUPLICATE` - When called during another reset call from another
+     *                   thread.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    reset() generates (Status status);
+
+    /**
+     * Releases the component.
+     *
+     * This method must be supported in stopped state.
+     *
+     * This method destroys the component. Upon return, if @p status is `OK` or
+     * `DUPLICATE`, all resources must have been released.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component has been released.
+     *   - `BAD_STATE` - The component is running.
+     *   - `DUPLICATE` - The component is already released.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    release() generates (Status status);
+
+    /**
+     * Returns the @ref IComponentInterface instance associated to this
+     * component.
+     *
+     * An @p IConfigurable instance for the component can be obtained by calling
+     * IComponentInterface::getConfigurable() on the returned @p intf.
+     *
+     * @return intf `IComponentInterface` instance. This must not be null.
+     */
+    getInterface() generates (IComponentInterface intf);
+};
+
diff --git a/media/c2/1.0/IComponentInterface.hal b/media/c2/1.0/IComponentInterface.hal
new file mode 100644
index 0000000..a007d02
--- /dev/null
+++ b/media/c2/1.0/IComponentInterface.hal
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import IConfigurable;
+
+/**
+ * Component interface object. This object contains all of the configurations of
+ * a potential or actual component. It can be created and used independently of
+ * an actual Codec2 component to query supported parameters for various
+ * component settings, and configurations for a potential component.
+ *
+ * An actual component exposes this interface via IComponent::getInterface().
+ */
+interface IComponentInterface {
+    /**
+     * Returns the @ref IConfigurable instance associated to this component
+     * interface.
+     *
+     * @return configurable `IConfigurable` instance. This must not be null.
+     */
+    getConfigurable() generates (IConfigurable configurable);
+};
+
diff --git a/media/c2/1.0/IComponentListener.hal b/media/c2/1.0/IComponentListener.hal
new file mode 100644
index 0000000..70d5fb2
--- /dev/null
+++ b/media/c2/1.0/IComponentListener.hal
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+/**
+ * Callback interface for handling notifications from @ref IComponent.
+ */
+interface IComponentListener {
+
+    /**
+     * Notify the listener that some `Work` items have been completed.
+     *
+     * All the input buffers in the returned `Work` objects must not be used by
+     * the component after onWorkDone() is called.
+     *
+     * @param workBundle List of completed `Work` objects.
+     */
+    oneway onWorkDone(WorkBundle workBundle);
+
+    /**
+     * Notify the listener that the component is tripped.
+     *
+     * @param settingResults List of failures.
+     */
+    oneway onTripped(vec<SettingResult> settingResults);
+
+    /**
+     * Notify the listener of an error.
+     *
+     * @param status Error type. @p status may be `OK`, which means that an
+     *     error has occurred, but the error type does not fit into the type
+     *     `Status`. In this case, additional information is provided by
+     *     @p errorCode.
+     * @param errorCode Additional error information. The framework may not
+     *     recognize the meaning of this value.
+     */
+    oneway onError(Status status, uint32_t errorCode);
+
+    /**
+     * Information about rendering of a frame to a `Surface`.
+     */
+    struct RenderedFrame {
+        /**
+         * Id of the `BufferQueue` containing the rendered buffer.
+         *
+         * This value must have been obtained by an earlier call to
+         * IGraphicBufferProducer::getUniqueId().
+         */
+        uint64_t bufferQueueId;
+        /**
+         * Id of the slot of the rendered buffer.
+         *
+         * This value must have been obtained by an earlier call to
+         * IGraphicBufferProducer::dequeueBuffer() or
+         * IGraphicBufferProducer::attachBuffer().
+         */
+        int32_t slotId;
+        /**
+         * Timestamp the rendering happened.
+         *
+         * The reference point for the timestamp is determined by the
+         * `BufferQueue` that performed the rendering.
+         */
+        int64_t timestampNs;
+    };
+
+    /**
+     * Notify the listener that frames have been rendered.
+     *
+     * @param renderedFrames List of @ref RenderedFrame objects.
+     */
+    oneway onFramesRendered(vec<RenderedFrame> renderedFrames);
+
+    /**
+     * Identifying information for an input buffer previously queued to the
+     * component via IComponent::queue().
+     */
+    struct InputBuffer {
+        /**
+         * This value comes from `Work::input.ordinal.frameIndex` in a `Work`
+         * object that was previously queued.
+         */
+        uint64_t frameIndex;
+        /**
+         * This value is an index into `Work::input.buffers` (which is an array)
+         * in a `Work` object that was previously queued.
+         */
+        uint32_t arrayIndex;
+    };
+
+    /**
+     * Notify the listener that some input buffers are no longer needed by the
+     * component, and hence can be released or reused by the client.
+     *
+     * Input buffers that are contained in a `Work` object returned by an
+     * earlier onWorkDone() call are assumed released, so they must not appear
+     * in any onInputBuffersReleased() calls. That means
+     * onInputBuffersReleased() must only report input buffers that are released
+     * before the output in the same `Work` item is produced. However, it is
+     * possible for an input buffer to be returned by onWorkDone() after it has
+     * been reported by onInputBuffersReleased().
+     *
+     * @note onWorkDone() and onInputBuffersReleased() both notify the client
+     * that input buffers are no longer needed. However, in order to minimize
+     * IPC calls, onInputBuffersReleased() should be called only when
+     * onWorkDone() cannot be called, e.g., the component needs more input
+     * before an output can be produced.
+     *
+     * @param inputBuffers List of `InputBuffer` objects, identifying input
+     * buffers that are no longer needed by the component.
+     */
+    oneway onInputBuffersReleased(vec<InputBuffer> inputBuffers);
+};
+
diff --git a/media/c2/1.0/IComponentStore.hal b/media/c2/1.0/IComponentStore.hal
new file mode 100644
index 0000000..2aa6a70
--- /dev/null
+++ b/media/c2/1.0/IComponentStore.hal
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import android.hardware.media.bufferpool@2.0::IClientManager;
+import IComponentInterface;
+import IComponentListener;
+import IComponent;
+import IConfigurable;
+import IInputSurface;
+
+/**
+ * Entry point for Codec2 HAL.
+ *
+ * All methods in `IComponentStore` must not block. If a method call cannot be
+ * completed in a timely manner, it must return `TIMED_OUT` in the return
+ * status. The only exceptions are getPoolClientManager() and getConfigurable(),
+ * which must always return immediately.
+ */
+interface IComponentStore {
+
+    /**
+     * Creates a component by name.
+     *
+     * @param name Name of the component to create. This must match one of the
+     *     names returned by listComponents().
+     * @param listener Callback receiver.
+     * @param pool `IClientManager` object of the BufferPool in the client
+     *     process. This may be null if the client does not own a BufferPool.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component was created successfully.
+     *   - `NOT_FOUND` - There is no component with the given name.
+     *   - `NO_MEMORY` - Not enough memory to create the component.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return comp The created component if @p status is `OK`.
+     *
+     * @sa IComponentListener.
+     */
+    createComponent(
+            string name,
+            IComponentListener listener,
+            IClientManager pool
+        ) generates (
+            Status status,
+            IComponent comp
+        );
+
+    /**
+     * Creates a component interface by name.
+     *
+     * @param name Name of the component interface to create. This should match
+     *     one of the names returned by listComponents().
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component interface was created successfully.
+     *   - `NOT_FOUND` - There is no component interface with the given name.
+     *   - `NO_MEMORY` - Not enough memory to create the component interface.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return compIntf The created component interface if @p status is `OK`.
+     */
+    createInterface(
+            string name
+        ) generates (
+            Status status,
+            IComponentInterface compIntf
+        );
+
+    /**
+     * Component traits.
+     */
+    struct ComponentTraits {
+        /**
+         * Name of the component. This must be unique for each component.
+         *
+         * This name is use to identify the component to create in
+         * createComponent() and createComponentInterface().
+         */
+        string name;
+
+        enum Domain : uint32_t {
+            OTHER = 0,
+            VIDEO,
+            AUDIO,
+            IMAGE,
+        };
+        /**
+         * Component domain.
+         */
+        Domain domain;
+
+        enum Kind : uint32_t {
+            OTHER = 0,
+            DECODER,
+            ENCODER,
+        };
+        /**
+         * Component kind.
+         */
+        Kind kind;
+
+        /**
+         * Rank used by `MediaCodecList` to determine component ordering. Lower
+         * value means higher priority.
+         */
+        uint32_t rank;
+
+        /**
+         * MIME type.
+         */
+        string mediaType;
+
+        /**
+         * Aliases for component name for backward compatibility.
+         *
+         * Multiple components can have the same alias (but not the same
+         * component name) as long as their media types differ.
+         */
+        vec<string> aliases;
+    };
+
+    /**
+     * Returns the list of components supported by this component store.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation was successful.
+     *   - `NO_MEMORY` - Not enough memory to complete this method.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return traits List of component traits for all components supported by
+     *     this store (in no particular order).
+     */
+    listComponents() generates (
+            Status status,
+            vec<ComponentTraits> traits
+        );
+
+    /**
+     * Creates a persistent input surface that can be used as an input surface
+     * for any IComponent instance
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation was successful.
+     *   - `NO_MEMORY` - Not enough memory to complete this method.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return surface A persistent input surface. This may be null to indicate
+     *     an error.
+     */
+    createInputSurface() generates (
+            Status status,
+            IInputSurface surface
+        );
+
+    /**
+     * Returns a list of `StructDescriptor` objects for a set of requested
+     * C2Param structure indices that this store is aware of.
+     *
+     * This operation must be performed at best effort, e.g. the component
+     * store must simply ignore all struct indices that it is not aware of.
+     *
+     * @param indices Indices of C2Param structures to describe.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `NOT_FOUND` - Some indices were not known.
+     *   - `NO_MEMORY` - Not enough memory to complete this method.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return structs List of `StructDescriptor` objects.
+     */
+    getStructDescriptors(
+            vec<ParamIndex> indices
+        ) generates (
+            Status status,
+            vec<StructDescriptor> structs
+        );
+
+    /**
+     * Copies the contents of @p src into @p dst without changing the format of
+     * @p dst.
+     *
+     * @param src Source buffer.
+     * @param dst Destination buffer.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The copy is successful.
+     *   - `CANNOT_DO` - @p src and @p dst are not compatible.
+     *   - `REFUSED`   - No permission to copy.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    copyBuffer(Buffer src, Buffer dst) generates (Status status);
+
+    /**
+     * Returns the `IClientManager` object for the component's BufferPool.
+     *
+     * @return pool If the component store supports receiving buffers via
+     *     BufferPool API, @p pool must be a valid `IClientManager` instance.
+     *     Otherwise, @p pool must be null.
+     */
+    getPoolClientManager() generates (IClientManager pool);
+
+    /**
+     * Returns the @ref IConfigurable instance associated to this component
+     * store.
+     *
+     * @return configurable `IConfigurable` instance. This must not be null.
+     */
+    getConfigurable() generates (IConfigurable configurable);
+};
+
diff --git a/media/c2/1.0/IConfigurable.hal b/media/c2/1.0/IConfigurable.hal
new file mode 100644
index 0000000..31dc4d3
--- /dev/null
+++ b/media/c2/1.0/IConfigurable.hal
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+/**
+ * Generic configuration interface presented by all configurable Codec2 objects.
+ *
+ * This interface must be supported in all states of the owning object, and must
+ * not change the state of the owning object.
+ */
+interface IConfigurable {
+    /**
+     * Returns the id of the object. This must be unique among all objects of
+     * the same type hosted by the same store.
+     *
+     * @return id Id of the object.
+     */
+    getId() generates (uint32_t id);
+
+    /**
+     * Returns the name of the object.
+     *
+     * This must match the name that was supplied during the creation of the
+     * object.
+     *
+     * @return name Name of the object.
+     */
+    getName() generates (string name);
+
+    /**
+     * Queries a set of parameters from the object.
+     *
+     * Querying is performed at best effort: the object must query all supported
+     * parameters and skip unsupported ones (which may include parameters that
+     * could not be allocated). Any errors are communicated in the return value.
+     *
+     * If @p mayBlock is false, this method must not block. All parameter
+     * queries that require blocking must be skipped.
+     *
+     * If @p mayBlock is true, a query may block, but the whole method call
+     * has to complete in a timely manner, or `status = TIMED_OUT` is returned.
+     *
+     * If @p mayBlock is false, this method must not block. Otherwise, this
+     * method is allowed to block for a certain period of time before completing
+     * the operation. If the operation is not completed in a timely manner,
+     * `status = TIMED_OUT` is returned.
+     *
+     * @note The order of C2Param objects in @p param does not depend on the
+     *     order of C2Param structure indices in @p indices.
+     *
+     * \par For IComponent
+     *
+     * When the object type is @ref IComponent, this method must be supported in
+     * any state except released. This call must not change the state nor the
+     * internal configuration of the component.
+     *
+     * The blocking behavior of this method differs among states:
+     *   - In the stopped state, this must be non-blocking. @p mayBlock is
+     *     ignored. (The method operates as if @p mayBlock was false.)
+     *   - In any of the running states, this method may block momentarily if
+     *     @p mayBlock is true. However, if the call cannot be completed in a
+     *     timely manner, `status = TIMED_OUT` is returned.
+     *
+     * @param indices List of C2Param structure indices to query.
+     * @param mayBlock Whether this call may block or not.
+     * @return status Status of the call, which may be
+     *   - `OK`        - All parameters could be queried.
+     *   - `BAD_INDEX` - All supported parameters could be queried, but some
+     *                   parameters were not supported.
+     *   - `NO_MEMORY` - Could not allocate memory for a supported parameter.
+     *   - `BLOCKING`  - Querying some parameters requires blocking, but
+     *                   @p mayBlock is false.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return params Flattened representation of C2Param objects.
+     *
+     * @sa Params.
+     */
+    query(
+            vec<ParamIndex> indices,
+            bool mayBlock
+        ) generates (
+            Status status,
+            Params params
+        );
+
+    /**
+     * Sets a set of parameters for the object.
+     *
+     * Tuning is performed at best effort: the object must update all supported
+     * configurations at best effort and skip unsupported parameters. Any errors
+     * are communicated in the return value and in @p failures.
+     *
+     * A non-strict parameter update with an unsupported value shall cause an
+     * update to the closest supported value. A strict parameter update with an
+     * unsupported value shall be skipped and a failure shall be returned.
+     *
+     * If @p mayBlock is false, this method must not block. An update that
+     * requires blocking shall be skipped and a failure shall be returned.
+     *
+     * If @p mayBlock is true, an update may block, but the whole method call
+     * has to complete in a timely manner, or `status = TIMED_OUT` is returned.
+     *
+     * The final values for all parameters set are propagated back to the caller
+     * in @p params.
+     *
+     * \par For IComponent
+     *
+     * When the object type is @ref IComponent, this method must be supported in
+     * any state except released.
+     *
+     * The blocking behavior of this method differs among states:
+     *   - In the stopped state, this must be non-blocking. @p mayBlock is
+     *     ignored. (The method operates as if @p mayBlock was false.)
+     *   - In any of the running states, this method may block momentarily if
+     *     @p mayBlock is true. However, if the call cannot be completed in a
+     *     timely manner, `status = TIMED_OUT` is returned.
+     *
+     * @note Parameter tuning @e does depend on the order of the tuning
+     * parameters, e.g., some parameter update may enable some subsequent
+     * parameter update.
+     *
+     * @param inParams Requested parameter updates.
+     * @param mayBlock Whether this call may block or not.
+     * @return status Status of the call, which may be
+     *   - `OK`        - All parameters could be updated successfully.
+     *   - `BAD_INDEX` - All supported parameters could be updated successfully,
+     *                   but some parameters were not supported.
+     *   - `NO_MEMORY` - Some supported parameters could not be updated
+     *                   successfully because they contained unsupported values.
+     *                   These are returned in @p failures.
+     *   - `BLOCKING`  - Setting some parameters requires blocking, but
+     *                   @p mayBlock is false.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return failures List of update failures.
+     * @return outParams Flattened representation of configured parameters. The
+     *     order of parameters in @p outParams is based on the order of
+     *     requested updates in @p inParams.
+     *
+     * @sa SettingResult.
+     */
+    config(
+            Params inParams,
+            bool mayBlock
+        ) generates (
+            Status status,
+            vec<SettingResult> failures,
+            Params outParams
+        );
+
+    // REFLECTION MECHANISM
+    // =========================================================================
+
+    /**
+     * Returns a list of supported parameters within a selected range of C2Param
+     * structure indices.
+     *
+     * @param start The first index of the selected range.
+     * @param count The length of the selected range.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `NO_MEMORY` - Not enough memory to complete this method.
+     * @return params List of supported parameters in the selected range. This
+     *     list may have fewer than @p count elements if some indices in the
+     *     range are not supported.
+     *
+     * @sa ParamDescriptor.
+     */
+    querySupportedParams(
+            uint32_t start,
+            uint32_t count
+        ) generates (
+            Status status,
+            vec<ParamDescriptor> params
+        );
+
+    /**
+     * Retrieves the supported values for the queried fields.
+     *
+     * The object must process all fields queried even if some queries fail.
+     *
+     * If @p mayBlock is false, this method must not block. Otherwise, this
+     * method is allowed to block for a certain period of time before completing
+     * the operation. If the operation cannot be completed in a timely manner,
+     * `status = TIMED_OUT` is returned.
+     *
+     * \par For IComponent
+     *
+     * When the object type is @ref IComponent, this method must be supported in
+     * any state except released.
+     *
+     * The blocking behavior of this method differs among states:
+     *   - In the stopped state, this must be non-blocking. @p mayBlock is
+     *     ignored. (The method operates as if @p mayBlock was false.)
+     *   - In any of the running states, this method may block momentarily if
+     *     @p mayBlock is true. However, if the call cannot be completed in a
+     *     timely manner, `status = TIMED_OUT` is returned.
+     *
+     * @param inFields List of field queries.
+     * @param mayBlock Whether this call may block or not.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The operation completed successfully.
+     *   - `BLOCKING`  - Querying some parameters requires blocking, but
+     *                   @p mayBlock is false.
+     *   - `NO_MEMORY` - Not enough memory to complete this method.
+     *   - `BAD_INDEX` - At least one field was not recognized as a component
+     *                   field.
+     *   - `BLOCKING`  - Querying some fields requires blocking, but @p mayblock
+     *                   is false.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return outFields List of supported values and results for the
+     *     supplied queries.
+     *
+     * @sa FieldSupportedValuesQuery, FieldSupportedValuesQueryResult.
+     */
+    querySupportedValues(
+            vec<FieldSupportedValuesQuery> inFields,
+            bool mayBlock
+        ) generates (
+            Status status,
+            vec<FieldSupportedValuesQueryResult> outFields
+        );
+
+};
+
diff --git a/media/c2/1.0/IInputSink.hal b/media/c2/1.0/IInputSink.hal
new file mode 100644
index 0000000..809c27a
--- /dev/null
+++ b/media/c2/1.0/IInputSink.hal
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import android.hardware.graphics.bufferqueue@1.0::IGraphicBufferProducer;
+
+import IConfigurable;
+
+/**
+ * An `IInputSink` is a receiver of work items.
+ *
+ * An @ref IComponent instance can present itself as an `IInputSink` via a thin
+ * wrapper.
+ *
+ * @sa IInputSurface, IComponent.
+ */
+interface IInputSink {
+    /**
+     * Feeds work to the sink.
+     *
+     * @param workBundle `WorkBundle` object containing a list of `Work` objects
+     *     to queue to the component.
+     * @return status Status of the call, which may be
+     *   - `OK`        - Works in @p workBundle were successfully queued.
+     *   - `BAD_INDEX` - Some component id in some `Worklet` is not valid.
+     *   - `CANNOT_DO` - Tunneling has not been set up for this sink, but some
+     *                   `Work` object contains tunneling information.
+     *   - `NO_MEMORY` - Not enough memory to queue @p workBundle.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    queue(WorkBundle workBundle) generates (Status status);
+
+    /**
+     * Returns the @ref IConfigurable instance associated to this sink.
+     *
+     * @return configurable `IConfigurable` instance. This must not be null.
+     */
+    getConfigurable() generates (IConfigurable configurable);
+};
+
diff --git a/media/c2/1.0/IInputSurface.hal b/media/c2/1.0/IInputSurface.hal
new file mode 100644
index 0000000..d11ce15
--- /dev/null
+++ b/media/c2/1.0/IInputSurface.hal
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import android.hardware.graphics.bufferqueue@1.0::IGraphicBufferProducer;
+
+import IConfigurable;
+import IInputSink;
+import IInputSurfaceConnection;
+
+/**
+ * Input surface for a Codec2 component.
+ *
+ * An <em>input surface</em> is an instance of `IInputSurface`, which may be
+ * created by calling IComponentStore::createInputSurface(). Once created, the
+ * client may
+ *   1. write data to it via the `IGraphicBufferProducer` interface; and
+ *   2. use it as input to a Codec2 encoder.
+ *
+ * @sa IInputSurfaceConnection, IComponentStore::createInputSurface(),
+ *     IComponent::connectToInputSurface().
+ */
+interface IInputSurface {
+    /**
+     * Returns the producer interface into the internal buffer queue.
+     *
+     * @return producer `IGraphicBufferProducer` instance. This must not be
+     * null.
+     */
+    getGraphicBufferProducer() generates (IGraphicBufferProducer producer);
+
+    /**
+     * Returns the @ref IConfigurable instance associated to this input surface.
+     *
+     * @return configurable `IConfigurable` instance. This must not be null.
+     */
+    getConfigurable() generates (IConfigurable configurable);
+
+    /**
+     * Connects the input surface to an input sink.
+     *
+     * This function is generally called from inside the implementation of
+     * IComponent::connectToInputSurface(), where @p sink is a thin wrapper of
+     * the component that consumes buffers from this surface.
+     *
+     * @param sink Input sink. See `IInputSink` for more information.
+     * @return status Status of the call, which may be
+     *   - `OK`        - Configuration successful.
+     *   - `BAD_VALUE` - @p sink is invalid.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return connection `IInputSurfaceConnection` object. This must not be
+     *     null if @p status is `OK`.
+     */
+    connect(
+            IInputSink sink
+        ) generates (
+            Status status,
+            IInputSurfaceConnection connection
+        );
+};
+
diff --git a/media/c2/1.0/IInputSurfaceConnection.hal b/media/c2/1.0/IInputSurfaceConnection.hal
new file mode 100644
index 0000000..035b115
--- /dev/null
+++ b/media/c2/1.0/IInputSurfaceConnection.hal
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import IConfigurable;
+
+/**
+ * Connection between a component and an input surface.
+ *
+ * An instance of `IInputSurfaceConnection` contains an `IConfigurable`
+ * interface for querying and configuring properties of the connection.
+ */
+interface IInputSurfaceConnection {
+    /**
+     * Destroys the connection between an input surface and a component.
+     *
+     * @return status Status of the call, which may be
+     *   - `OK`        - The disconnection succeeded.
+     *   - `BAD_STATE` - The component is not in running state.
+     *   - `NOT_FOUND` - The surface is not connected to a component.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     */
+    disconnect() generates (Status status);
+
+    /**
+     * Returns the @ref IConfigurable instance associated to this connection.
+     *
+     * This can be used to customize the connection.
+     *
+     * @return configurable `IConfigurable` instance. This must not be null.
+     */
+    getConfigurable() generates (IConfigurable configurable);
+};
+
diff --git a/media/c2/1.0/types.hal b/media/c2/1.0/types.hal
new file mode 100644
index 0000000..ec422b1
--- /dev/null
+++ b/media/c2/1.0/types.hal
@@ -0,0 +1,827 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.0;
+
+import android.hardware.media.bufferpool@2.0::BufferStatusMessage;
+
+/**
+ * Common return values for Codec2 operations.
+ */
+enum Status : int32_t {
+    /** Operation completed successfully. */
+    OK        = 0,
+
+    // bad input
+
+    /** Argument has invalid value (user error). */
+    BAD_VALUE = -22,
+    /** Argument uses invalid index (user error). */
+    BAD_INDEX = -75,
+    /** Argument/Index is valid but not possible. */
+    CANNOT_DO = -2147483646,
+
+    // bad sequencing of events
+
+    /** Object already exists. */
+    DUPLICATE = -17,
+    /** Object not found. */
+    NOT_FOUND = -2,
+    /** Operation is not permitted in the current state. */
+    BAD_STATE = -38,
+    /** Operation would block but blocking is not permitted. */
+    BLOCKING  = -9930,
+
+    // bad environment
+
+    /** Not enough memory to complete operation. */
+    NO_MEMORY = -12,
+    /** Missing permission to complete operation. */
+    REFUSED   = -1,
+
+    /** Operation did not complete within timeout. */
+    TIMED_OUT = -110,
+
+    // missing functionality
+
+    /** Operation is not implemented/supported (optional only). */
+    OMITTED   = -74,
+
+    // unknown fatal
+
+    /** Some unexpected error prevented the operation. */
+    CORRUPTED = -2147483648,
+
+    // uninitialized
+
+    /** Status has not been initialized. */
+    NO_INIT   = -19,
+};
+
+/**
+ * C2Param structure index.
+ *
+ * This is a number that is unique for each C2Param structure type.
+ *
+ * @sa Codec 2.0 standard.
+ */
+typedef uint32_t ParamIndex;
+
+/**
+ * Flattened representation of C2Param objects.
+ *
+ * The `Params` type is an array of bytes made up by concatenating a list of
+ * C2Param objects. The start index (offset into @ref Params) of each C2Param
+ * object in the list is divisible by 8. Up to 7 padding bytes may be added
+ * after each C2Param object to achieve this 64-bit alignment.
+ *
+ * Each C2Param object has the following layout:
+ * - 4 bytes: C2Param structure index (of type @ref ParamIndex) identifying the
+ *   type of the C2Param object.
+ * - 4 bytes: size of the C2Param object (unsigned 4-byte integer).
+ * - (size - 8) bytes: data of the C2Param object.
+ *
+ * In order to interpret each C2Param object correctly, its structure must be
+ * described by IComponentStore::getStructDescriptors().
+ *
+ * @note Please refer to the Codec 2.0 standard for the list of standard
+ * parameter structures.
+ *
+ * @sa Codec 2.0 standard.
+ */
+typedef vec<uint8_t> Params;
+
+/**
+ * Identifying information of a field relative to a known C2Param structure.
+ *
+ * Within a given C2Param structure, each field is uniquely identified by @ref
+ * FieldId.
+ */
+struct FieldId {
+    /** Offset of the field in bytes. */
+    uint32_t offset;
+    /** Size of the field in bytes. */
+    uint32_t size;
+};
+
+/**
+ * Reference to a field in a C2Param structure.
+ */
+struct ParamField {
+    /** Index of the C2Param structure. */
+    ParamIndex index;
+    /** Identifier of the field inside the C2Param structure. */
+    FieldId fieldId;
+};
+
+/**
+ * Usage description of a C2Param structure.
+ *
+ * @ref ParamDescriptor is returned by IConfigurable::querySupportedParams().
+ */
+struct ParamDescriptor {
+    /**
+     * Index of the C2Param structure being described.
+     */
+    ParamIndex index;
+
+    enum Attrib : uint32_t {
+        /**
+         * The parameter is required to be specified.
+         */
+        REQUIRED   = 1u << 0,
+        /**
+         * The parameter retains its value.
+         */
+        PERSISTENT = 1u << 1,
+        /**
+         * The parameter is strict.
+         */
+        STRICT     = 1u << 2,
+        /**
+         * The parameter is publicly read-only.
+         */
+        READ_ONLY  = 1u << 3,
+        /**
+         * The parameter must not be visible to clients.
+         */
+        HIDDEN     = 1u << 4,
+        /**
+         * The parameter must not be used by framework (other than testing).
+         */
+        INTERNAL   = 1u << 5,
+        /**
+         * The parameter is publicly constant (hence read-only).
+         */
+        CONST      = 1u << 6,
+    };
+    bitfield<Attrib> attrib;
+
+    /**
+     * Name of the structure. This must be unique for each structure.
+     */
+    string name;
+
+    /**
+     * Indices of other C2Param structures that this C2Param structure depends
+     * on.
+     */
+    vec<ParamIndex> dependencies;
+};
+
+// Generic way to describe supported numeric values for Codec2 interfaces.
+
+/**
+ * An untyped value that can fit in 64 bits, the type of which is communicated
+ * via a separate channel (@ref FieldSupportedValues.type).
+ */
+typedef uint64_t PrimitiveValue;
+
+/*
+ * Description of supported values for a field.
+ *
+ * This can be a continuous range or a discrete set of values.
+ */
+struct FieldSupportedValues {
+    /**
+     * Used if #type is `RANGE`.
+     *
+     * If the `step` member is 0, and `num` and `denom` are both 1, the `Range`
+     * structure represents a closed interval bounded by `min` and `max`.
+     *
+     * Otherwise, the #Range structure represents a finite sequence of numbers
+     * produced from the following recurrence relation:
+     *
+     * @code
+     * v[0] = min
+     * v[i] = v[i - 1] * num / denom + step ; i >= 1
+     * @endcode
+     *
+     * Both the ratio `num / denom` and the value `step` must be positive. The
+     * last number in the sequence described by this #Range structure is the
+     * largest number in the sequence that is smaller than or equal to `max`.
+     *
+     * @note
+     * The division in the formula may truncate the result if the data type of
+     * these values is an integral type.
+     */
+    struct Range {
+        /**
+         * Lower end of the range (inclusive).
+         */
+        PrimitiveValue min;
+        /**
+         * Upper end of the range (inclusive).
+         */
+        PrimitiveValue max;
+        /**
+         * The non-homogeneous term in the recurrence relation.
+         */
+        PrimitiveValue step;
+        /**
+         * The numerator of the scale coefficient in the recurrence relation.
+         */
+        PrimitiveValue num;
+        /**
+         * The denominator of the scale coefficient in the recurrence relation.
+         */
+        PrimitiveValue denom;
+    };
+
+    enum Type : int32_t {
+        /** No supported values */
+        EMPTY = 0,
+        /** Numeric range, described in a #Range structure */
+        RANGE,
+        /** List of values */
+        VALUES,
+        /** List of flags that can be OR-ed */
+        FLAGS,
+    };
+    /**
+     * Type of the supported values.
+     */
+    Type type;
+
+    /**
+     * When #type is #Type.RANGE, #range shall specify the range of possible
+     * values.
+     *
+     * The intended type of members of #range shall be clear in the context
+     * where `FieldSupportedValues` is used.
+     */
+    Range range;
+
+    /**
+     * When #type is #Type.VALUES or #Type.FLAGS, #value shall list supported
+     * values/flags.
+     *
+     * The intended type of components of #value shall be clear in the context
+     * where `FieldSupportedValues` is used.
+     */
+    vec<PrimitiveValue> values;
+};
+
+/**
+ * Supported values for a field.
+ *
+ * This is a pair of the field specifier together with an optional supported
+ * values object. This structure is used when reporting parameter configuration
+ * failures and conflicts.
+ */
+struct ParamFieldValues {
+    /**
+     * Reference to a field or a C2Param structure.
+     */
+    ParamField paramOrField;
+
+    /**
+     * Optional supported values for the field if #paramOrField specifies an
+     * actual field that is numeric (non struct, blob or string). Supported
+     * values for arrays (including string and blobs) describe the supported
+     * values for each element (character for string, and bytes for blobs). It
+     * is optional for read-only strings and blobs.
+     */
+    vec<FieldSupportedValues> values;
+};
+
+/**
+ * Description of a field inside a C2Param structure.
+ */
+struct FieldDescriptor {
+
+    /** Location of the field in the C2Param structure */
+    FieldId fieldId;
+
+    /**
+     * Possible types of the field.
+     */
+    enum Type : uint32_t {
+        NO_INIT = 0,
+        INT32,
+        UINT32,
+        CNTR32,
+        INT64,
+        UINT64,
+        CNTR64,
+        FLOAT,
+        /**
+         * Fixed-size string (POD).
+         */
+        STRING = 0x100,
+        /**
+         * A blob has no sub-elements and can be thought of as an array of
+         * bytes. However, bytes cannot be individually addressed by clients.
+         */
+        BLOB,
+        /**
+         * The field is a structure that may contain other fields.
+         */
+        STRUCT = 0x20000,
+    };
+    /**
+     * Type of the field.
+     */
+    bitfield<Type> type;
+
+    /**
+     * If #type is #Type.STRUCT, #structIndex is the C2Param structure index;
+     * otherwise, #structIndex is not used.
+     */
+    ParamIndex structIndex;
+
+    /**
+     * Extent of the field.
+     * - For a non-array field, #extent is 1.
+     * - For a fixed-length array field, #extent is the length. An array field
+     *   of length 1 is indistinguishable from a non-array field.
+     * - For a variable-length array field, #extent is 0. This can only occur as
+     *   the last member of a C2Param structure.
+     */
+    uint32_t extent;
+
+    /**
+     * Name of the field. This must be unique for each field in the same
+     * structure.
+     */
+    string name;
+
+    /**
+     * Named value type. This is used for defining an enum value for a numeric
+     * type.
+     */
+    struct NamedValue {
+        /**
+         * Name of the enum value. This must be unique for each enum value in
+         * the same field.
+         */
+        string name;
+        /**
+         * Underlying value of the enum value. Multiple enum names may have the
+         * same underlying value.
+         */
+        PrimitiveValue value;
+    };
+    /**
+     * List of enum values. This is not used when #type is not one of the
+     * numeric types.
+     */
+    vec<NamedValue> namedValues;
+};
+
+/**
+ * Description of a C2Param structure. It consists of an index and a list of
+ * `FieldDescriptor`s.
+ */
+struct StructDescriptor {
+    /**
+     * Index of the structure.
+     */
+    ParamIndex type;
+    /**
+     * List of fields in the structure.
+     *
+     * Fields are ordered by their offsets. A field that is a structure is
+     * ordered before its members.
+     */
+    vec<FieldDescriptor> fields;
+};
+
+/**
+ * Information describing the reason the parameter settings may fail, or may be
+ * overridden.
+ */
+struct SettingResult {
+    /** Failure code */
+    enum Failure : uint32_t {
+        /** Parameter is not supported. */
+        BAD_TYPE,
+        /** Parameter is not supported on the specific port. */
+        BAD_PORT,
+        /** Parameter is not supported on the specific stream. */
+        BAD_INDEX,
+        /** Parameter is read-only and cannot be set. */
+        READ_ONLY,
+        /** Parameter mismatches input data. */
+        MISMATCH,
+        /** Strict parameter does not accept value for the field at all. */
+        BAD_VALUE,
+        /**
+         * Strict parameter field value is in conflict with an/other
+         * setting(s).
+         */
+        CONFLICT,
+        /**
+         * Parameter field is out of range due to other settings. (This failure
+         * mode can only be used for strict calculated parameters.)
+         */
+        UNSUPPORTED,
+        /**
+         * Field does not access the requested parameter value at all. It has
+         * been corrected to the closest supported value. This failure mode is
+         * provided to give guidance as to what are the currently supported
+         * values for this field (which may be a subset of the at-all-potential
+         * values).
+         */
+        INFO_BAD_VALUE,
+        /**
+         * Requested parameter value is in conflict with an/other setting(s)
+         * and has been corrected to the closest supported value. This failure
+         * mode is given to provide guidance as to what are the currently
+         * supported values as well as to optionally provide suggestion to the
+         * client as to how to enable the requested parameter value.
+         */
+        INFO_CONFLICT,
+    };
+    Failure failure;
+
+    /**
+     * Failing (or corrected) field or parameter and optionally, currently
+     * supported values for the field. Values must only be set for field
+     * failures other than `BAD_VALUE`, and only if they are different from the
+     * globally supported values (e.g. due to restrictions by another parameter
+     * or input data).
+     */
+    ParamFieldValues field;
+
+    /**
+     * Conflicting parameters or fields with (optional) suggested values for any
+     * conflicting fields to avoid the conflict. Values must only be set for
+     * `CONFLICT`, `UNSUPPORTED` or `INFO_CONFLICT` failure code.
+     */
+    vec<ParamFieldValues> conflicts;
+};
+
+/**
+ * Ordering information of @ref FrameData objects. Each member is used for
+ * comparing urgency: a smaller difference from a reference value indicates that
+ * the associated Work object is more urgent. The reference value for each
+ * member is initialized the first time it is communicated between the client
+ * and the codec, and it may be updated to later values that are communicated.
+ *
+ * Each member of `WorkOrdinal` is stored as an unsigned integer, but the actual
+ * order it represents is derived by subtracting the reference value, then
+ * interpreting the result as a signed number with the same storage size (using
+ * two's complement).
+ *
+ * @note `WorkOrdinal` is the HIDL counterpart of `C2WorkOrdinalStruct` in the
+ * Codec 2.0 standard.
+ */
+struct WorkOrdinal {
+    /**
+     * Timestamp in microseconds.
+     */
+    uint64_t timestampUs;
+    /**
+     * Frame index.
+     */
+    uint64_t frameIndex;
+    /**
+     * Component specific frame ordinal.
+     */
+    uint64_t customOrdinal;
+};
+
+/**
+ * Storage type for `BaseBlock`.
+ *
+ * A `BaseBlock` is a representation of a codec memory block. Coded data,
+ * decoded data, codec-specific data, and other codec-related data are all sent
+ * in the form of BaseBlocks.
+ */
+safe_union BaseBlock {
+    /**
+     * #nativeBlock is the opaque representation of a buffer.
+     */
+    handle nativeBlock;
+    /**
+     * #pooledBlock is a reference to a buffer handled by a BufferPool.
+     */
+    BufferStatusMessage pooledBlock;
+};
+
+/**
+ * Reference to a @ref BaseBlock within a @ref WorkBundle.
+ *
+ * `Block` contains additional attributes that `BaseBlock` does not. These
+ * attributes may differ among `Block` objects that refer to the same
+ * `BaseBlock` in the same `WorkBundle`.
+ */
+struct Block {
+    /**
+     * Identity of a `BaseBlock` within a `WorkBundle`. This is an index into
+     * #WorkBundle.baseBlocks.
+     */
+    uint32_t index;
+    /**
+     * Metadata associated with this `Block`.
+     */
+    Params meta;
+    /**
+     * Fence for synchronizing `Block` access.
+     */
+    handle fence;
+};
+
+/**
+ * A codec buffer, which is a collection of @ref Block objects and metadata.
+ *
+ * This is a part of @ref FrameData.
+ */
+struct Buffer {
+    /**
+     * Metadata associated with the buffer.
+     */
+    Params info;
+    /**
+     * Blocks contained in the buffer.
+     */
+    vec<Block> blocks;
+};
+
+/**
+ * An extension of @ref Buffer that also contains a C2Param structure index.
+ *
+ * This is a part of @ref FrameData.
+ */
+struct InfoBuffer {
+    /**
+     * A C2Param structure index.
+     */
+    ParamIndex index;
+    /**
+     * Associated @ref Buffer object.
+     */
+    Buffer buffer;
+};
+
+/**
+ * Data for an input frame or an output frame.
+ *
+ * This structure represents a @e frame with its metadata. A @e frame consists
+ * of an ordered set of buffers, configuration changes, and info buffers along
+ * with some non-configuration metadata.
+ *
+ * @note `FrameData` is the HIDL counterpart of `C2FrameData` in the Codec 2.0
+ * standard.
+ */
+struct FrameData {
+    enum Flags : uint32_t {
+        /**
+         * For input frames: no output frame shall be generated when processing
+         * this frame, but metadata must still be processed.
+         *
+         * For output frames: this frame must be discarded but metadata is still
+         * valid.
+         */
+        DROP_FRAME    = (1 << 0),
+        /**
+         * This frame is the last frame of the current stream. Further frames
+         * are part of a new stream.
+         */
+        END_OF_STREAM = (1 << 1),
+        /**
+         * This frame must be discarded with its metadata.
+         *
+         * This flag is only set by components, e.g. as a response to the flush
+         * command.
+         */
+        DISCARD_FRAME = (1 << 2),
+        /**
+         * This frame is not the last frame produced for the input.
+         *
+         * This flag is normally set by the component - e.g. when an input frame
+         * results in multiple output frames, this flag is set on all but the
+         * last output frame.
+         *
+         * Also, when components are chained, this flag should be propagated
+         * down the work chain. That is, if set on an earlier frame of a
+         * work-chain, it should be propagated to all later frames in that
+         * chain. Additionally, components down the chain could set this flag
+         * even if not set earlier, e.g. if multiple output frames are generated
+         * at that component for the input frame.
+         */
+        FLAG_INCOMPLETE = (1 << 3),
+        /**
+         * This frame contains only codec-specific configuration data, and no
+         * actual access unit.
+         *
+         * @deprecated Pass codec configuration with the codec-specific
+         * configuration info together with the access unit.
+         */
+        CODEC_CONFIG  = (1u << 31),
+    };
+
+    /**
+     * Frame flags, as described in #Flags.
+     */
+    bitfield<Flags> flags;
+
+    /**
+     * @ref WorkOrdinal of the frame.
+     */
+    WorkOrdinal ordinal;
+
+    /**
+     * List of frame buffers.
+     */
+    vec<Buffer> buffers;
+
+    /**
+     * List of configuration updates.
+     */
+    Params configUpdate;
+
+    /**
+     * List of info buffers.
+     */
+    vec<InfoBuffer> infoBuffers;
+};
+
+/**
+ * In/out structure containing some instructions for and results from output
+ * processing.
+ *
+ * This is a part of @ref Work. One `Worklet` corresponds to one output
+ * @ref FrameData. The client must construct an original `Worklet` object inside
+ * a @ref Work object for each expected output before calling
+ * IComponent::queue().
+ */
+struct Worklet {
+    /**
+     * Component id. (Input)
+     *
+     * This is used only when tunneling is enabled.
+     *
+     * When used, this must match the return value from IConfigurable::getId().
+     */
+    uint32_t componentId;
+
+    /**
+     * List of C2Param objects describing tunings to be applied before
+     * processing this `Worklet`. (Input)
+     */
+    Params tunings;
+
+    /**
+     * List of failures. (Output)
+     */
+    vec<SettingResult> failures;
+
+    /**
+     * Output frame data. (Output)
+     */
+    FrameData output;
+};
+
+/**
+ * A collection of input data to and output data from the component.
+ *
+ * A `Work` object holds information about a single work item. It is created by
+ * the client and passed to the component via IComponent::queue(). The component
+ * has two ways of returning a `Work` object to the client:
+ *   1. If the queued `Work` object has been successfully processed,
+ *      IComponentListener::onWorkDone() shall be called to notify the listener,
+ *      and the output shall be included in the returned `Work` object.
+ *   2. If the client calls IComponent::flush(), a `Work` object that has not
+ *      been processed shall be returned.
+ *
+ * `Work` is a part of @ref WorkBundle.
+ */
+struct Work {
+    /**
+     * Additional work chain info not part of this work.
+     */
+    Params chainInfo;
+
+    /**
+     * @ref FrameData for the input.
+     */
+    FrameData input;
+
+    /**
+     * The chain of `Worklet`s.
+     *
+     * The length of #worklets is 1 when tunneling is not enabled.
+     *
+     * If #worklets has more than a single element, the tunnels between
+     * successive components of the work chain must have been successfully
+     * pre-registered at the time that the `Work` is submitted. Allocating the
+     * output buffers in the `Worklet`s is the responsibility of each component
+     * in the chain.
+     *
+     * Upon `Work` submission, #worklets must be an appropriately sized vector
+     * containing `Worklet`s with @ref Worklet.hasOutput set to `false`. After a
+     * successful processing, all but the final `Worklet` in the returned
+     * #worklets must have @ref Worklet.hasOutput set to `false`.
+     */
+    vec<Worklet> worklets;
+
+    /**
+     * The number of `Worklet`s successfully processed in this chain.
+     *
+     * This must be initialized to 0 by the client when the `Work` is submitted,
+     * and it must contain the number of `Worklet`s that were successfully
+     * processed when the `Work` is returned to the client.
+     *
+     * #workletsProcessed cannot exceed the length of #worklets. If
+     * #workletsProcessed is smaller than the length of #worklets, #result
+     * cannot be `OK`.
+     */
+    uint32_t workletsProcessed;
+
+    /**
+     * The final outcome of the `Work` (corresponding to #workletsProcessed).
+     *
+     * The value of @ref Status.OK implies that all `Worklet`s have been
+     * successfully processed.
+     */
+    Status result;
+};
+
+/**
+ * List of `Work` objects.
+ *
+ * `WorkBundle` is used in IComponent::queue(), IComponent::flush() and
+ * IComponentListener::onWorkDone(). A `WorkBundle` object consists of a list of
+ * `Work` objects and a list of `BaseBlock` objects. Bundling multiple `Work`
+ * objects together provides two benefits:
+ *   1. Batching of `Work` objects can reduce the number of IPC calls.
+ *   2. If multiple `Work` objects contain `Block`s that refer to the same
+ *      `BaseBlock`, the number of `BaseBlock`s that is sent between processes
+ *      is also reduced.
+ *
+ * @note `WorkBundle` is the HIDL counterpart of the vector of `C2Work` in the
+ * Codec 2.0 standard. The presence of #baseBlocks helps with minimizing the
+ * data transferred over an IPC.
+ */
+struct WorkBundle {
+    /**
+     * A list of Work items.
+     */
+    vec<Work> works;
+    /**
+     * A list of blocks indexed by elements of #works.
+     */
+    vec<BaseBlock> baseBlocks;
+};
+
+/**
+ * Query information for supported values of a field. This is used as input to
+ * IConfigurable::querySupportedValues().
+ */
+struct FieldSupportedValuesQuery {
+    /**
+     * Identity of the field to query.
+     */
+    ParamField field;
+
+    enum Type : uint32_t {
+        /** Query all possible values regardless of other settings. */
+        POSSIBLE,
+        /** Query currently possible values given dependent settings. */
+        CURRENT,
+    };
+    /**
+     * Type of the query. See #Type for more information.
+     */
+    Type type;
+};
+
+/**
+ * This structure is used to hold the result from
+ * IConfigurable::querySupportedValues().
+ */
+struct FieldSupportedValuesQueryResult {
+    /**
+     * Result of the query. Possible values are
+     * - `OK`: The query was successful.
+     * - `BAD_STATE`: The query was requested when the `IConfigurable` instance
+     *   was in a bad state.
+     * - `BAD_INDEX`: The requested field was not recognized.
+     * - `TIMED_OUT`: The query could not be completed in a timely manner.
+     * - `BLOCKING`: The query must block, but the parameter `mayBlock` in the
+     *   call to `querySupportedValues()` was `false`.
+     * - `CORRUPTED`: Some unknown error occurred.
+     */
+    Status status;
+
+    /**
+     * Supported values. This is meaningful only when #status is `OK`.
+     */
+    FieldSupportedValues values;
+};
+
diff --git a/media/omx/1.0/vts/functional/common/media_hidl_test_common.cpp b/media/omx/1.0/vts/functional/common/media_hidl_test_common.cpp
index 34a96a0..88a9e26 100644
--- a/media/omx/1.0/vts/functional/common/media_hidl_test_common.cpp
+++ b/media/omx/1.0/vts/functional/common/media_hidl_test_common.cpp
@@ -470,7 +470,7 @@
     status = omxNode->sendCommand(toRawCommandType(OMX_CommandStateSet),
                                   OMX_StateExecuting);
     ASSERT_EQ(status, android::hardware::media::omx::V1_0::Status::OK);
-    status = observer->dequeueMessage(&msg, DEFAULT_TIMEOUT);
+    status = observer->dequeueMessage(&msg, RELAXED_TIMEOUT);
     ASSERT_EQ(status, android::hardware::media::omx::V1_0::Status::OK);
     ASSERT_EQ(msg.type, Message::Type::EVENT);
     ASSERT_EQ(msg.data.eventData.event, OMX_EventCmdComplete);
diff --git a/media/omx/1.0/vts/functional/common/media_hidl_test_common.h b/media/omx/1.0/vts/functional/common/media_hidl_test_common.h
index c1863d5..1575ba2 100644
--- a/media/omx/1.0/vts/functional/common/media_hidl_test_common.h
+++ b/media/omx/1.0/vts/functional/common/media_hidl_test_common.h
@@ -41,6 +41,8 @@
 /* As component is switching states (loaded<->idle<->execute), dequeueMessage()
  * expects the events to be received within this duration */
 #define DEFAULT_TIMEOUT 100000
+// b/70933963
+#define RELAXED_TIMEOUT 400000
 /* Time interval between successive Input/Output enqueues */
 #define DEFAULT_TIMEOUT_Q 2000
 /* While the component is amidst a process call, asynchronous commands like
diff --git a/media/omx/1.0/vts/functional/component/VtsHalMediaOmxV1_0TargetComponentTest.cpp b/media/omx/1.0/vts/functional/component/VtsHalMediaOmxV1_0TargetComponentTest.cpp
index 7750a12..4ddc833 100644
--- a/media/omx/1.0/vts/functional/component/VtsHalMediaOmxV1_0TargetComponentTest.cpp
+++ b/media/omx/1.0/vts/functional/component/VtsHalMediaOmxV1_0TargetComponentTest.cpp
@@ -1149,15 +1149,13 @@
             ASSERT_EQ(status, android::hardware::media::omx::V1_0::Status::OK);
 
             // do not enable the port until all the buffers are supplied
-            status = observer->dequeueMessage(&msg, DEFAULT_TIMEOUT,
-                                              &pBuffer[0], &pBuffer[1]);
+            status = observer->dequeueMessage(&msg, RELAXED_TIMEOUT, &pBuffer[0], &pBuffer[1]);
             ASSERT_EQ(status,
                       android::hardware::media::omx::V1_0::Status::TIMED_OUT);
 
             ASSERT_NO_FATAL_FAILURE(allocatePortBuffers(
                 omxNode, &pBuffer[i - portBase], i, portMode[i - portBase]));
-            status = observer->dequeueMessage(&msg, DEFAULT_TIMEOUT,
-                                              &pBuffer[0], &pBuffer[1]);
+            status = observer->dequeueMessage(&msg, RELAXED_TIMEOUT, &pBuffer[0], &pBuffer[1]);
             ASSERT_EQ(status, android::hardware::media::omx::V1_0::Status::OK);
             ASSERT_EQ(msg.type, Message::Type::EVENT);
             ASSERT_EQ(msg.data.eventData.data1, OMX_CommandPortEnable);
diff --git a/neuralnetworks/1.2/vts/functional/ValidateModel.cpp b/neuralnetworks/1.2/vts/functional/ValidateModel.cpp
index 7f4d385..3b8e3dd 100644
--- a/neuralnetworks/1.2/vts/functional/ValidateModel.cpp
+++ b/neuralnetworks/1.2/vts/functional/ValidateModel.cpp
@@ -241,7 +241,7 @@
         case OperandType::TENSOR_QUANT8_ASYMM:
             return {-1, 256};
         case OperandType::TENSOR_QUANT8_SYMM:
-            return {-129, -1, 1, 128};
+          return {-129, -1, 1, 128};
         case OperandType::TENSOR_QUANT16_ASYMM:
             return {-1, 65536};
         case OperandType::TENSOR_QUANT16_SYMM:
diff --git a/radio/1.3/IRadio.hal b/radio/1.3/IRadio.hal
index cc5b860..95cf615 100644
--- a/radio/1.3/IRadio.hal
+++ b/radio/1.3/IRadio.hal
@@ -49,10 +49,8 @@
             vec<RadioAccessSpecifier> specifiers);
 
    /**
-    * Toggle logical modem on and off. It should put the logical modem in low power
-    * mode without any activity, while the SIM card remains visible. The difference
-    * with setRadioPower is, setRadioPower affects all logical modem while this controls
-    * just one.
+    * Toggle logical modem on and off. The difference with setRadioPower is,
+    * setRadioPower affects all logical modems while this controls just one.
     *
     * @param serial Serial number of request.
     * @param on True to turn on the logical modem, otherwise turn it off.
@@ -62,9 +60,8 @@
     oneway enableModem(int32_t serial, bool on);
 
    /**
-    * Request status of logical modem associated with the given serial number. It returns
-    * isEnabled=true if the logical modem is in low power mode without any activity, while
-    * the SIM card remains visible.
+    * Request status of logical modem. It returns isEnabled=true if the logical modem is on.
+    * This method is the getter method for enableModem.
     *
     * @param serial Serial number of request.
     *
diff --git a/radio/config/1.1/vts/functional/radio_config_hidl_hal_api.cpp b/radio/config/1.1/vts/functional/radio_config_hidl_hal_api.cpp
index a8e939c..a1639d8 100644
--- a/radio/config/1.1/vts/functional/radio_config_hidl_hal_api.cpp
+++ b/radio/config/1.1/vts/functional/radio_config_hidl_hal_api.cpp
@@ -48,8 +48,8 @@
     ALOGI("setModemsConfig, rspInfo.error = %s\n", toString(radioConfigRsp->rspInfo.error).c_str());
 
     ASSERT_TRUE(
-            CheckAnyOfErrors(radioConfigRsp->rspInfo.error,
-                             {RadioError::INVALID_ARGUMENTS, RadioError::REQUEST_NOT_SUPPORTED}));
+        CheckAnyOfErrors(radioConfigRsp->rspInfo.error,
+                         {RadioError::INVALID_ARGUMENTS, RadioError::REQUEST_NOT_SUPPORTED}));
 }
 
 /*
diff --git a/radio/config/1.1/vts/functional/radio_config_hidl_hal_test.cpp b/radio/config/1.1/vts/functional/radio_config_hidl_hal_test.cpp
index 6c1b382..a8c257d 100644
--- a/radio/config/1.1/vts/functional/radio_config_hidl_hal_test.cpp
+++ b/radio/config/1.1/vts/functional/radio_config_hidl_hal_test.cpp
@@ -18,13 +18,13 @@
 
 void RadioConfigHidlTest::SetUp() {
     radioConfig = ::testing::VtsHalHidlTargetTestBase::getService<IRadioConfig>(
-            RadioConfigHidlEnvironment::Instance()->getServiceName<IRadioConfig>(
-                    hidl_string(RADIO_SERVICE_NAME)));
+        RadioConfigHidlEnvironment::Instance()->getServiceName<IRadioConfig>(
+            hidl_string(RADIO_SERVICE_NAME)));
     if (radioConfig == NULL) {
         sleep(60);
         radioConfig = ::testing::VtsHalHidlTargetTestBase::getService<IRadioConfig>(
-                RadioConfigHidlEnvironment::Instance()->getServiceName<IRadioConfig>(
-                        hidl_string(RADIO_SERVICE_NAME)));
+            RadioConfigHidlEnvironment::Instance()->getServiceName<IRadioConfig>(
+                hidl_string(RADIO_SERVICE_NAME)));
     }
     ASSERT_NE(nullptr, radioConfig.get());
 
diff --git a/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h b/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h
index 592555f..1747ce8 100644
--- a/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h
+++ b/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h
@@ -56,8 +56,8 @@
     virtual ~RadioConfigResponse() = default;
 
     Return<void> getSimSlotsStatusResponse(
-            const RadioResponseInfo& info,
-            const ::android::hardware::hidl_vec<SimSlotStatus>& slotStatus);
+        const RadioResponseInfo& info,
+        const ::android::hardware::hidl_vec<SimSlotStatus>& slotStatus);
 
     Return<void> setSimSlotsMappingResponse(const RadioResponseInfo& info);
 
diff --git a/radio/config/1.1/vts/functional/radio_config_response.cpp b/radio/config/1.1/vts/functional/radio_config_response.cpp
index 6e41aeb..8c9e4d7 100644
--- a/radio/config/1.1/vts/functional/radio_config_response.cpp
+++ b/radio/config/1.1/vts/functional/radio_config_response.cpp
@@ -21,8 +21,8 @@
 RadioConfigResponse::RadioConfigResponse(RadioConfigHidlTest& parent) : parent(parent) {}
 
 Return<void> RadioConfigResponse::getSimSlotsStatusResponse(
-        const RadioResponseInfo& /* info */,
-        const ::android::hardware::hidl_vec<SimSlotStatus>& /* slotStatus */) {
+    const RadioResponseInfo& /* info */,
+    const ::android::hardware::hidl_vec<SimSlotStatus>& /* slotStatus */) {
     return Void();
 }
 
@@ -31,12 +31,12 @@
 }
 
 Return<void> RadioConfigResponse::getPhoneCapabilityResponse(
-        const RadioResponseInfo& /* info */, const PhoneCapability& /* phoneCapability */) {
+    const RadioResponseInfo& /* info */, const PhoneCapability& /* phoneCapability */) {
     return Void();
 }
 
 Return<void> RadioConfigResponse::setPreferredDataModemResponse(
-        const RadioResponseInfo& /* info */) {
+    const RadioResponseInfo& /* info */) {
     return Void();
 }
 
diff --git a/sensors/1.0/default/OWNERS b/sensors/1.0/default/OWNERS
index 6a38a1f..2031d84 100644
--- a/sensors/1.0/default/OWNERS
+++ b/sensors/1.0/default/OWNERS
@@ -1,2 +1,2 @@
-ashutoshj@google.com
-pengxu@google.com
+bduddie@google.com
+bstack@google.com
diff --git a/sensors/1.0/vts/functional/Android.bp b/sensors/1.0/vts/functional/Android.bp
index c58c7fc..d4c5f32 100644
--- a/sensors/1.0/vts/functional/Android.bp
+++ b/sensors/1.0/vts/functional/Android.bp
@@ -18,13 +18,14 @@
     name: "VtsHalSensorsV1_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: [
-        "GrallocWrapper.cpp",
+        "SensorsHidlEnvironmentV1_0.cpp",
         "VtsHalSensorsV1_0TargetTest.cpp"
     ],
     static_libs: [
         "android.hardware.graphics.allocator@2.0",
         "android.hardware.graphics.mapper@2.0",
         "android.hardware.sensors@1.0",
+        "VtsHalSensorsTargetTestUtils",
     ],
     test_suites: ["general-tests"],
 }
diff --git a/sensors/1.0/vts/functional/GrallocWrapper.cpp b/sensors/1.0/vts/functional/GrallocWrapper.cpp
deleted file mode 100644
index e422d62..0000000
--- a/sensors/1.0/vts/functional/GrallocWrapper.cpp
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "GrallocWrapper"
-
-#include "GrallocWrapper.h"
-
-#include <utils/Log.h>
-
-namespace android {
-
-GrallocWrapper::GrallocWrapper() { init(); }
-
-void GrallocWrapper::init() {
-  mAllocator = allocator2::IAllocator::getService();
-  if (mAllocator == nullptr) {
-    ALOGE("Failed to get allocator service");
-  }
-
-  mMapper = mapper2::IMapper::getService();
-  if (mMapper == nullptr) {
-    ALOGE("Failed to get mapper service");
-  }
-  if (mMapper->isRemote()) {
-    ALOGE("Mapper is not in passthrough mode");
-  }
-}
-
-GrallocWrapper::~GrallocWrapper() {
-  for (auto bufferHandle : mClonedBuffers) {
-    auto buffer = const_cast<native_handle_t*>(bufferHandle);
-    native_handle_close(buffer);
-    native_handle_delete(buffer);
-  }
-  mClonedBuffers.clear();
-
-  for (auto bufferHandle : mImportedBuffers) {
-    auto buffer = const_cast<native_handle_t*>(bufferHandle);
-    if (mMapper->freeBuffer(buffer) != mapper2::Error::NONE) {
-      ALOGE("Failed to free buffer %p", buffer);
-    }
-  }
-  mImportedBuffers.clear();
-}
-
-sp<allocator2::IAllocator> GrallocWrapper::getAllocator() const {
-  return mAllocator;
-}
-
-std::string GrallocWrapper::dumpDebugInfo() {
-  std::string debugInfo;
-  mAllocator->dumpDebugInfo(
-      [&](const auto& tmpDebugInfo) { debugInfo = tmpDebugInfo.c_str(); });
-
-  return debugInfo;
-}
-
-const native_handle_t* GrallocWrapper::cloneBuffer(
-    const hardware::hidl_handle& rawHandle) {
-  const native_handle_t* bufferHandle =
-      native_handle_clone(rawHandle.getNativeHandle());
-
-  if (bufferHandle) {
-    mClonedBuffers.insert(bufferHandle);
-  }
-  return bufferHandle;
-}
-
-std::vector<const native_handle_t*> GrallocWrapper::allocate(
-    const mapper2::BufferDescriptor& descriptor, uint32_t count, bool import,
-    uint32_t* outStride) {
-  std::vector<const native_handle_t*> bufferHandles;
-  bufferHandles.reserve(count);
-  mAllocator->allocate(
-      descriptor, count,
-      [&](const auto& tmpError, const auto& tmpStride, const auto& tmpBuffers) {
-        if (mapper2::Error::NONE != tmpError) {
-          ALOGE("Failed to allocate buffers");
-        }
-        if (count != tmpBuffers.size()) {
-          ALOGE("Invalid buffer array");
-        }
-
-        for (uint32_t i = 0; i < count; i++) {
-          if (import) {
-            bufferHandles.push_back(importBuffer(tmpBuffers[i]));
-          } else {
-            bufferHandles.push_back(cloneBuffer(tmpBuffers[i]));
-          }
-        }
-
-        if (outStride) {
-          *outStride = tmpStride;
-        }
-      });
-
-  return bufferHandles;
-}
-
-const native_handle_t* GrallocWrapper::allocate(
-    const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo, bool import,
-    uint32_t* outStride) {
-  mapper2::BufferDescriptor descriptor = createDescriptor(descriptorInfo);
-  ALOGE("QQ");
-  auto buffers = allocate(descriptor, 1, import, outStride);
-  return buffers[0];
-}
-
-sp<mapper2::IMapper> GrallocWrapper::getMapper() const { return mMapper; }
-
-mapper2::BufferDescriptor GrallocWrapper::createDescriptor(
-    const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo) {
-  mapper2::BufferDescriptor descriptor;
-  mMapper->createDescriptor(
-      descriptorInfo, [&](const auto& tmpError, const auto& tmpDescriptor) {
-        if (tmpError != mapper2::Error::NONE) {
-          ALOGE("Failed to create descriptor");
-        }
-        descriptor = tmpDescriptor;
-      });
-
-  return descriptor;
-}
-
-const native_handle_t* GrallocWrapper::importBuffer(
-    const hardware::hidl_handle& rawHandle) {
-  const native_handle_t* bufferHandle = nullptr;
-  mMapper->importBuffer(
-      rawHandle, [&](const auto& tmpError, const auto& tmpBuffer) {
-        if (tmpError != mapper2::Error::NONE) {
-          ALOGE("Failed to import buffer %p", rawHandle.getNativeHandle());
-        }
-        bufferHandle = static_cast<const native_handle_t*>(tmpBuffer);
-      });
-
-  if (bufferHandle) {
-    mImportedBuffers.insert(bufferHandle);
-  }
-
-  return bufferHandle;
-}
-
-void GrallocWrapper::freeBuffer(const native_handle_t* bufferHandle) {
-  auto buffer = const_cast<native_handle_t*>(bufferHandle);
-
-  if (mImportedBuffers.erase(bufferHandle)) {
-    mapper2::Error error = mMapper->freeBuffer(buffer);
-    if (error != mapper2::Error::NONE) {
-      ALOGE("Failed to free %p", buffer);
-    }
-  } else {
-    mClonedBuffers.erase(bufferHandle);
-    native_handle_close(buffer);
-    native_handle_delete(buffer);
-  }
-}
-
-void* GrallocWrapper::lock(const native_handle_t* bufferHandle,
-                           uint64_t cpuUsage,
-                           const mapper2::IMapper::Rect& accessRegion,
-                           int acquireFence) {
-  auto buffer = const_cast<native_handle_t*>(bufferHandle);
-
-  NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
-  hardware::hidl_handle acquireFenceHandle;
-  if (acquireFence >= 0) {
-    auto h = native_handle_init(acquireFenceStorage, 1, 0);
-    h->data[0] = acquireFence;
-    acquireFenceHandle = h;
-  }
-
-  void* data = nullptr;
-  mMapper->lock(buffer, cpuUsage, accessRegion, acquireFenceHandle,
-                [&](const auto& tmpError, const auto& tmpData) {
-                  if (tmpError != mapper2::Error::NONE) {
-                    ALOGE("Failed to lock buffer %p", buffer);
-                  }
-                  data = tmpData;
-                });
-
-  if (acquireFence >= 0) {
-    close(acquireFence);
-  }
-
-  return data;
-}
-
-int GrallocWrapper::unlock(const native_handle_t* bufferHandle) {
-  auto buffer = const_cast<native_handle_t*>(bufferHandle);
-
-  int releaseFence = -1;
-  mMapper->unlock(buffer, [&](const auto& tmpError,
-                              const auto& tmpReleaseFence) {
-    if (tmpError != mapper2::Error::NONE) {
-      ALOGE("Failed to unlock buffer %p", buffer);
-    }
-
-    auto fenceHandle = tmpReleaseFence.getNativeHandle();
-    if (fenceHandle) {
-      if (fenceHandle->numInts != 0) {
-        ALOGE("Invalid fence handle %p", fenceHandle);
-      }
-      if (fenceHandle->numFds == 1) {
-        releaseFence = dup(fenceHandle->data[0]);
-        if (releaseFence < 0){
-          ALOGE("Failed to dup fence fd");
-        }
-      } else {
-        if (fenceHandle->numFds != 0) {
-          ALOGE("Invalid fence handle %p", fenceHandle);
-        }
-      }
-    }
-  });
-
-  return releaseFence;
-}
-
-}  // namespace android
diff --git a/sensors/1.0/vts/functional/GrallocWrapper.h b/sensors/1.0/vts/functional/GrallocWrapper.h
deleted file mode 100644
index e506fe1..0000000
--- a/sensors/1.0/vts/functional/GrallocWrapper.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef GRALLO_WRAPPER_H_
-#define GRALLO_WRAPPER_H_
-
-#include <unordered_set>
-
-#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
-#include <android/hardware/graphics/mapper/2.0/IMapper.h>
-
-namespace allocator2 = ::android::hardware::graphics::allocator::V2_0;
-namespace mapper2 = ::android::hardware::graphics::mapper::V2_0;
-
-namespace android {
-
-// Modified from hardware/interfaces/graphics/mapper/2.0/vts/functional/
-class GrallocWrapper {
- public:
-  GrallocWrapper();
-  ~GrallocWrapper();
-
-  sp<allocator2::IAllocator> getAllocator() const;
-  sp<mapper2::IMapper> getMapper() const;
-
-  std::string dumpDebugInfo();
-
-  // When import is false, this simply calls IAllocator::allocate. When import
-  // is true, the returned buffers are also imported into the mapper.
-  //
-  // Either case, the returned buffers must be freed with freeBuffer.
-  std::vector<const native_handle_t*> allocate(
-      const mapper2::BufferDescriptor& descriptor, uint32_t count, bool import = true,
-      uint32_t* outStride = nullptr);
-  const native_handle_t* allocate(
-      const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo, bool import = true,
-      uint32_t* outStride = nullptr);
-
-  mapper2::BufferDescriptor createDescriptor(
-      const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo);
-
-  const native_handle_t* importBuffer(const hardware::hidl_handle& rawHandle);
-  void freeBuffer(const native_handle_t* bufferHandle);
-
-  // We use fd instead of hardware::hidl_handle in these functions to pass fences
-  // in and out of the mapper.  The ownership of the fd is always transferred
-  // with each of these functions.
-  void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
-             const mapper2::IMapper::Rect& accessRegion, int acquireFence);
-
-  int unlock(const native_handle_t* bufferHandle);
-
- private:
-  void init();
-  const native_handle_t* cloneBuffer(const hardware::hidl_handle& rawHandle);
-
-  sp<allocator2::IAllocator> mAllocator;
-  sp<mapper2::IMapper> mMapper;
-
-  // Keep track of all cloned and imported handles.  When a test fails with
-  // ASSERT_*, the destructor will free the handles for the test.
-  std::unordered_set<const native_handle_t*> mClonedBuffers;
-  std::unordered_set<const native_handle_t*> mImportedBuffers;
-};
-
-}  // namespace android
-#endif  // GRALLO_WRAPPER_H_
diff --git a/sensors/1.0/vts/functional/OWNERS b/sensors/1.0/vts/functional/OWNERS
index 8715e5d..759d87b 100644
--- a/sensors/1.0/vts/functional/OWNERS
+++ b/sensors/1.0/vts/functional/OWNERS
@@ -1,6 +1,6 @@
 # Sensors team
-ashutoshj@google.com
-pengxu@google.com
+bduddie@google.com
+bstack@google.com
 
 # VTS team
 trong@google.com
diff --git a/sensors/1.0/vts/functional/SensorsHidlEnvironmentV1_0.cpp b/sensors/1.0/vts/functional/SensorsHidlEnvironmentV1_0.cpp
new file mode 100644
index 0000000..00207b1
--- /dev/null
+++ b/sensors/1.0/vts/functional/SensorsHidlEnvironmentV1_0.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SensorsHidlEnvironmentV1_0.h"
+
+#include <log/log.h>
+
+#include <vector>
+
+using ::android::hardware::hidl_vec;
+using ::android::hardware::sensors::V1_0::ISensors;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SensorInfo;
+
+bool SensorsHidlEnvironmentV1_0::resetHal() {
+    // wait upto 100ms * 10 = 1s for hidl service.
+    constexpr auto RETRY_DELAY = std::chrono::milliseconds(100);
+
+    std::string step;
+    bool succeed = false;
+    for (size_t retry = 10; retry > 0; --retry) {
+        // this do ... while is for easy error handling
+        do {
+            step = "getService()";
+            sensors = ISensors::getService(
+                SensorsHidlEnvironmentV1_0::Instance()->getServiceName<ISensors>());
+            if (sensors == nullptr) {
+                break;
+            }
+
+            step = "poll() check";
+            // Poke ISensor service. If it has lingering connection from previous generation of
+            // system server, it will kill itself. There is no intention to handle the poll result,
+            // which will be done since the size is 0.
+            if (!sensors->poll(0, [](auto, const auto&, const auto&) {}).isOk()) {
+                break;
+            }
+
+            step = "getSensorList";
+            std::vector<SensorInfo> sensorList;
+            if (!sensors
+                     ->getSensorsList([&](const hidl_vec<SensorInfo>& list) {
+                         sensorList.reserve(list.size());
+                         for (size_t i = 0; i < list.size(); ++i) {
+                             sensorList.push_back(list[i]);
+                         }
+                     })
+                     .isOk()) {
+                break;
+            }
+
+            // stop each sensor individually
+            step = "stop each sensor";
+            bool ok = true;
+            for (const auto& i : sensorList) {
+                if (!sensors->activate(i.sensorHandle, false).isOk()) {
+                    ok = false;
+                    break;
+                }
+            }
+            if (!ok) {
+                break;
+            }
+
+            // mark it done
+            step = "done";
+            succeed = true;
+        } while (0);
+
+        if (succeed) {
+            return true;
+        }
+
+        // Delay 100ms before retry, hidl service is expected to come up in short time after crash.
+        ALOGI("%s unsuccessful, try again soon (remaining retry %zu).", step.c_str(), retry - 1);
+        std::this_thread::sleep_for(RETRY_DELAY);
+    }
+
+    sensors = nullptr;
+    return false;
+}
+
+void SensorsHidlEnvironmentV1_0::startPollingThread() {
+    mStopThread = false;
+    mPollThread = std::thread(pollingThread, this, std::ref(mStopThread));
+    mEvents.reserve(128);
+}
+
+void SensorsHidlEnvironmentV1_0::pollingThread(SensorsHidlEnvironmentV1_0* env,
+                                               std::atomic_bool& stop) {
+    ALOGD("polling thread start");
+
+    while (!stop) {
+        env->sensors->poll(
+            64, [&](auto result, const auto& events, const auto& dynamicSensorsAdded) {
+                if (result != Result::OK ||
+                    (events.size() == 0 && dynamicSensorsAdded.size() == 0) || stop) {
+                    stop = true;
+                    return;
+                }
+
+                for (const auto& e : events) {
+                    env->addEvent(e);
+                }
+            });
+    }
+    ALOGD("polling thread end");
+}
\ No newline at end of file
diff --git a/sensors/1.0/vts/functional/SensorsHidlEnvironmentV1_0.h b/sensors/1.0/vts/functional/SensorsHidlEnvironmentV1_0.h
new file mode 100644
index 0000000..0a9e59f
--- /dev/null
+++ b/sensors/1.0/vts/functional/SensorsHidlEnvironmentV1_0.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_HIDL_ENVIRONMENT_V1_0_H
+#define ANDROID_SENSORS_HIDL_ENVIRONMENT_V1_0_H
+
+#include "sensors-vts-utils/SensorsHidlEnvironmentBase.h"
+
+#include <android/hardware/sensors/1.0/ISensors.h>
+#include <android/hardware/sensors/1.0/types.h>
+#include <utils/StrongPointer.h>
+
+#include <atomic>
+#include <memory>
+
+using ::android::sp;
+
+class SensorsHidlTest;
+class SensorsHidlEnvironmentV1_0 : public SensorsHidlEnvironmentBase {
+   public:
+    using Event = ::android::hardware::sensors::V1_0::Event;
+    // get the test environment singleton
+    static SensorsHidlEnvironmentV1_0* Instance() {
+        static SensorsHidlEnvironmentV1_0* instance = new SensorsHidlEnvironmentV1_0();
+        return instance;
+    }
+
+    virtual void registerTestServices() override {
+        registerTestService<android::hardware::sensors::V1_0::ISensors>();
+    }
+
+   private:
+    friend SensorsHidlTest;
+    // sensors hidl service
+    sp<android::hardware::sensors::V1_0::ISensors> sensors;
+
+    SensorsHidlEnvironmentV1_0() {}
+
+    bool resetHal() override;
+    void startPollingThread() override;
+    static void pollingThread(SensorsHidlEnvironmentV1_0* env, std::atomic_bool& stop);
+
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(SensorsHidlEnvironmentV1_0);
+};
+
+#endif  // ANDROID_SENSORS_HIDL_ENVIRONMENT_V1_0_H
\ No newline at end of file
diff --git a/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp b/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp
index c18eedd..47308e1 100644
--- a/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp
+++ b/sensors/1.0/vts/functional/VtsHalSensorsV1_0TargetTest.cpp
@@ -15,583 +15,66 @@
  */
 
 #define LOG_TAG "sensors_hidl_hal_test"
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
-#include <android-base/logging.h>
+
+#include "SensorsHidlEnvironmentV1_0.h"
+#include "sensors-vts-utils/SensorsHidlTestBase.h"
+
 #include <android/hardware/sensors/1.0/ISensors.h>
 #include <android/hardware/sensors/1.0/types.h>
-#include <cutils/ashmem.h>
-#include <hardware/sensors.h>  // for sensor type strings
 #include <log/log.h>
 #include <utils/SystemClock.h>
-#include "GrallocWrapper.h"
 
-#include <algorithm>
 #include <cinttypes>
-#include <cmath>
-#include <memory>
-#include <mutex>
-#include <thread>
-#include <unordered_set>
 #include <vector>
 
-#include <sys/mman.h>
-#include <unistd.h>
-
-using ::android::GrallocWrapper;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
-using ::android::hardware::hidl_string;
 using ::android::sp;
 using namespace ::android::hardware::sensors::V1_0;
 
-// Test environment for sensors
-class SensorsHidlTest;
-class SensorsHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static SensorsHidlEnvironment* Instance() {
-        static SensorsHidlEnvironment* instance = new SensorsHidlEnvironment;
-        return instance;
-    }
-
-    virtual void HidlSetUp() override;
-    virtual void HidlTearDown() override;
-
-    virtual void registerTestServices() override { registerTestService<ISensors>(); }
-
-    // Get and clear all events collected so far (like "cat" shell command).
-    // If output is nullptr, it clears all collected events.
-    void catEvents(std::vector<Event>* output);
-
-    // set sensor event collection status
-    void setCollection(bool enable);
-
-   private:
-    friend SensorsHidlTest;
-    // sensors hidl service
-    sp<ISensors> sensors;
-
-    SensorsHidlEnvironment() {}
-
-    void addEvent(const Event& ev);
-    void startPollingThread();
-    void resetHal();
-    static void pollingThread(SensorsHidlEnvironment* env, std::shared_ptr<bool> stop);
-
-    bool collectionEnabled;
-    std::shared_ptr<bool> stopThread;
-    std::thread pollThread;
-    std::vector<Event> events;
-    std::mutex events_mutex;
-
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(SensorsHidlEnvironment);
-};
-
-void SensorsHidlEnvironment::HidlSetUp() {
-    resetHal();
-
-    ASSERT_NE(sensors, nullptr) << "sensors is nullptr, cannot get hidl service";
-
-    collectionEnabled = false;
-    startPollingThread();
-
-    // In case framework just stopped for test and there is sensor events in the pipe,
-    // wait some time for those events to be cleared to avoid them messing up the test.
-    std::this_thread::sleep_for(std::chrono::seconds(3));
-}
-
-void SensorsHidlEnvironment::HidlTearDown() {
-    if (stopThread) {
-        *stopThread = true;
-    }
-    pollThread.detach();
-}
-
-void SensorsHidlEnvironment::resetHal() {
-  // wait upto 100ms * 10 = 1s for hidl service.
-  constexpr auto RETRY_DELAY = std::chrono::milliseconds(100);
-
-  std::string step;
-  bool succeed = false;
-  for (size_t retry = 10; retry > 0; --retry) {
-    // this do ... while is for easy error handling
-    do {
-      step = "getService()";
-      sensors = ISensors::getService(
-          SensorsHidlEnvironment::Instance()->getServiceName<ISensors>());
-      if (sensors == nullptr) {
-        break;
-      }
-
-      step = "poll() check";
-      // Poke ISensor service. If it has lingering connection from previous generation of
-      // system server, it will kill itself. There is no intention to handle the poll result,
-      // which will be done since the size is 0.
-      if(!sensors->poll(0, [](auto, const auto &, const auto &) {}).isOk()) {
-        break;
-      }
-
-      step = "getSensorList";
-      std::vector<SensorInfo> sensorList;
-      if (!sensors->getSensorsList(
-          [&] (const ::android::hardware::hidl_vec<SensorInfo> &list) {
-            sensorList.reserve(list.size());
-            for (size_t i = 0; i < list.size(); ++i) {
-              sensorList.push_back(list[i]);
-            }
-          }).isOk()) {
-        break;
-      }
-
-      // stop each sensor individually
-      step = "stop each sensor";
-      bool ok = true;
-      for (const auto &i : sensorList) {
-        if (!sensors->activate(i.sensorHandle, false).isOk()) {
-          ok = false;
-          break;
-        }
-      }
-      if (!ok) {
-        break;
-      }
-
-      // mark it done
-      step = "done";
-      succeed = true;
-    } while(0);
-
-    if (succeed) {
-      return;
-    }
-
-    // Delay 100ms before retry, hidl service is expected to come up in short time after crash.
-    ALOGI("%s unsuccessful, try again soon (remaining retry %zu).", step.c_str(), retry - 1);
-    std::this_thread::sleep_for(RETRY_DELAY);
-  }
-
-  sensors = nullptr;
-}
-
-void SensorsHidlEnvironment::catEvents(std::vector<Event>* output) {
-  std::lock_guard<std::mutex> lock(events_mutex);
-  if (output) {
-    output->insert(output->end(), events.begin(), events.end());
-  }
-  events.clear();
-}
-
-void SensorsHidlEnvironment::setCollection(bool enable) {
-  std::lock_guard<std::mutex> lock(events_mutex);
-  collectionEnabled = enable;
-}
-
-void SensorsHidlEnvironment::addEvent(const Event& ev) {
-  std::lock_guard<std::mutex> lock(events_mutex);
-  if (collectionEnabled) {
-    events.push_back(ev);
-  }
-}
-
-void SensorsHidlEnvironment::startPollingThread() {
-  stopThread = std::shared_ptr<bool>(new bool(false));
-  pollThread = std::thread(pollingThread, this, stopThread);
-  events.reserve(128);
-}
-
-void SensorsHidlEnvironment::pollingThread(
-    SensorsHidlEnvironment* env, std::shared_ptr<bool> stop) {
-  ALOGD("polling thread start");
-  bool needExit = *stop;
-
-  while(!needExit) {
-      env->sensors->poll(64, [&](auto result, const auto& events, const auto& dynamicSensorsAdded) {
-          if (result != Result::OK
-              || (events.size() == 0 && dynamicSensorsAdded.size() == 0)
-              || *stop) {
-              needExit = true;
-              return;
-          }
-
-          for (const auto& e : events) {
-              env->addEvent(e);
-          }
-      });
-  }
-  ALOGD("polling thread end");
-}
-
-class SensorsTestSharedMemory {
- public:
-  static SensorsTestSharedMemory* create(SharedMemType type, size_t size);
-  SharedMemInfo getSharedMemInfo() const;
-  char * getBuffer() const;
-  std::vector<Event> parseEvents(int64_t lastCounter = -1, size_t offset = 0) const;
-  virtual ~SensorsTestSharedMemory();
- private:
-  SensorsTestSharedMemory(SharedMemType type, size_t size);
-
-  SharedMemType mType;
-  native_handle_t* mNativeHandle;
-  size_t mSize;
-  char* mBuffer;
-  std::unique_ptr<GrallocWrapper> mGrallocWrapper;
-
-  DISALLOW_COPY_AND_ASSIGN(SensorsTestSharedMemory);
-};
-
-SharedMemInfo SensorsTestSharedMemory::getSharedMemInfo() const {
-  SharedMemInfo mem = {
-    .type = mType,
-    .format = SharedMemFormat::SENSORS_EVENT,
-    .size = static_cast<uint32_t>(mSize),
-    .memoryHandle = mNativeHandle
-  };
-  return mem;
-}
-
-char * SensorsTestSharedMemory::getBuffer() const {
-  return mBuffer;
-}
-
-std::vector<Event> SensorsTestSharedMemory::parseEvents(int64_t lastCounter, size_t offset) const {
-
-  constexpr size_t kEventSize = static_cast<size_t>(SensorsEventFormatOffset::TOTAL_LENGTH);
-  constexpr size_t kOffsetSize = static_cast<size_t>(SensorsEventFormatOffset::SIZE_FIELD);
-  constexpr size_t kOffsetToken = static_cast<size_t>(SensorsEventFormatOffset::REPORT_TOKEN);
-  constexpr size_t kOffsetType = static_cast<size_t>(SensorsEventFormatOffset::SENSOR_TYPE);
-  constexpr size_t kOffsetAtomicCounter =
-      static_cast<size_t>(SensorsEventFormatOffset::ATOMIC_COUNTER);
-  constexpr size_t kOffsetTimestamp = static_cast<size_t>(SensorsEventFormatOffset::TIMESTAMP);
-  constexpr size_t kOffsetData = static_cast<size_t>(SensorsEventFormatOffset::DATA);
-
-  std::vector<Event> events;
-  std::vector<float> data(16);
-
-  while (offset + kEventSize <= mSize) {
-    int64_t atomicCounter = *reinterpret_cast<uint32_t *>(mBuffer + offset + kOffsetAtomicCounter);
-    if (atomicCounter <= lastCounter) {
-      ALOGV("atomicCounter = %" PRId64 ", lastCounter = %" PRId64, atomicCounter, lastCounter);
-      break;
-    }
-
-    int32_t size = *reinterpret_cast<int32_t *>(mBuffer + offset + kOffsetSize);
-    if (size != kEventSize) {
-      // unknown error, events parsed may be wrong, remove all
-      events.clear();
-      break;
-    }
-
-    int32_t token = *reinterpret_cast<int32_t *>(mBuffer + offset + kOffsetToken);
-    int32_t type = *reinterpret_cast<int32_t *>(mBuffer + offset + kOffsetType);
-    int64_t timestamp = *reinterpret_cast<int64_t *>(mBuffer + offset + kOffsetTimestamp);
-
-    ALOGV("offset = %zu, cnt %" PRId64 ", token %" PRId32 ", type %" PRId32 ", timestamp %" PRId64,
-        offset, atomicCounter, token, type, timestamp);
-
-    Event event = {
-      .timestamp = timestamp,
-      .sensorHandle = token,
-      .sensorType = static_cast<SensorType>(type),
-    };
-    event.u.data = android::hardware::hidl_array<float, 16>
-        (reinterpret_cast<float*>(mBuffer + offset + kOffsetData));
-
-    events.push_back(event);
-
-    lastCounter = atomicCounter;
-    offset += kEventSize;
-  }
-
-  return events;
-}
-
-SensorsTestSharedMemory::SensorsTestSharedMemory(SharedMemType type, size_t size)
-    : mType(type), mSize(0), mBuffer(nullptr) {
-  native_handle_t *handle = nullptr;
-  char *buffer = nullptr;
-  switch(type) {
-    case SharedMemType::ASHMEM: {
-      int fd;
-      handle = ::native_handle_create(1 /*nFds*/, 0/*nInts*/);
-      if (handle != nullptr) {
-        handle->data[0] = fd = ::ashmem_create_region("SensorsTestSharedMemory", size);
-        if (handle->data[0] > 0) {
-          // memory is pinned by default
-          buffer = static_cast<char *>
-              (::mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
-          if (buffer != reinterpret_cast<char*>(MAP_FAILED)) {
-            break;
-          }
-          ::native_handle_close(handle);
-        }
-        ::native_handle_delete(handle);
-        handle = nullptr;
-      }
-      break;
-    }
-    case SharedMemType::GRALLOC: {
-      mGrallocWrapper = std::make_unique<GrallocWrapper>();
-      if (mGrallocWrapper->getAllocator() == nullptr || mGrallocWrapper->getMapper() == nullptr) {
-        break;
-      }
-      using android::hardware::graphics::common::V1_0::BufferUsage;
-      using android::hardware::graphics::common::V1_0::PixelFormat;
-      mapper2::IMapper::BufferDescriptorInfo buf_desc_info = {
-        .width = static_cast<uint32_t>(size),
-        .height = 1,
-        .layerCount = 1,
-        .usage = static_cast<uint64_t> (BufferUsage::SENSOR_DIRECT_DATA |
-            BufferUsage::CPU_READ_OFTEN),
-        .format = PixelFormat::BLOB
-      };
-
-      handle = const_cast<native_handle_t *>(mGrallocWrapper->allocate(buf_desc_info));
-      if (handle != nullptr) {
-        mapper2::IMapper::Rect region{0, 0,
-            static_cast<int32_t>(buf_desc_info.width),
-            static_cast<int32_t>(buf_desc_info.height)};
-        buffer = static_cast<char *>
-                (mGrallocWrapper->lock(handle, buf_desc_info.usage, region, /*fence=*/-1));
-        if (buffer != nullptr) {
-          break;
-        }
-        mGrallocWrapper->freeBuffer(handle);
-        handle = nullptr;
-      }
-      break;
-    }
-    default:
-      break;
-  }
-
-  if (buffer != nullptr) {
-    mNativeHandle = handle;
-    mSize = size;
-    mBuffer = buffer;
-  }
-}
-
-SensorsTestSharedMemory::~SensorsTestSharedMemory() {
-  switch(mType) {
-    case SharedMemType::ASHMEM: {
-      if (mSize != 0) {
-        ::munmap(mBuffer, mSize);
-        mBuffer = nullptr;
-
-        ::native_handle_close(mNativeHandle);
-        ::native_handle_delete(mNativeHandle);
-
-        mNativeHandle = nullptr;
-        mSize = 0;
-      }
-      break;
-    }
-    case SharedMemType::GRALLOC: {
-      if (mSize != 0) {
-        mGrallocWrapper->unlock(mNativeHandle);
-        mGrallocWrapper->freeBuffer(mNativeHandle);
-
-        mNativeHandle = nullptr;
-        mSize = 0;
-      }
-      break;
-    }
-    default: {
-      if (mNativeHandle != nullptr || mSize != 0 || mBuffer != nullptr) {
-        ALOGE("SensorsTestSharedMemory %p not properly destructed: "
-            "type %d, native handle %p, size %zu, buffer %p",
-            this, static_cast<int>(mType), mNativeHandle, mSize, mBuffer);
-      }
-      break;
-    }
-  }
-}
-
-SensorsTestSharedMemory* SensorsTestSharedMemory::create(SharedMemType type, size_t size) {
-  constexpr size_t kMaxSize = 128*1024*1024; // sensor test should not need more than 128M
-  if (size == 0 || size >= kMaxSize) {
-    return nullptr;
-  }
-
-  auto m = new SensorsTestSharedMemory(type, size);
-  if (m->mSize != size || m->mBuffer == nullptr) {
-    delete m;
-    m = nullptr;
-  }
-  return m;
-}
-
-class SensorEventsChecker {
- public:
-  virtual bool check(const std::vector<Event> &events, std::string *out) const = 0;
-  virtual ~SensorEventsChecker() {}
-};
-
-class NullChecker : public SensorEventsChecker {
- public:
-  virtual bool check(const std::vector<Event> &, std::string *) const {
-    return true;
-  }
-};
-
-class SensorEventPerEventChecker : public SensorEventsChecker {
- public:
-  virtual bool checkEvent(const Event &event, std::string *out) const = 0;
-  virtual bool check(const std::vector<Event> &events, std::string *out) const {
-    for (const auto &e : events) {
-      if (!checkEvent(e, out)) {
-        return false;
-      }
-    }
-    return true;
-  }
-};
-
-class Vec3NormChecker : public SensorEventPerEventChecker {
- public:
-  Vec3NormChecker(float min, float max) : mRange(min, max) {}
-  static Vec3NormChecker byNominal(float nominal, float allowedError) {
-    return Vec3NormChecker(nominal - allowedError, nominal + allowedError);
-  }
-
-  virtual bool checkEvent(const Event &event, std::string *out) const {
-    Vec3 v = event.u.vec3;
-    float norm = std::sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
-    if (norm < mRange.first || norm > mRange.second) {
-      if (out != nullptr) {
-        std::ostringstream ss;
-        ss << "Event @ " << event.timestamp << " (" << v.x << ", " << v.y << ", " << v.z << ")"
-           << " has norm " << norm << ", which is beyond range"
-           << " [" << mRange.first << ", " << mRange.second << "]";
-        *out = ss.str();
-      }
-      return false;
-    }
-    return true;
-  }
- protected:
-  std::pair<float, float> mRange;
-};
-
 // The main test class for SENSORS HIDL HAL.
-class SensorsHidlTest : public ::testing::VtsHalHidlTargetTestBase {
- public:
-  virtual void SetUp() override {
-  }
 
-  virtual void TearDown() override {
-    // stop all sensors
-    for (auto s : mSensorHandles) {
-      S()->activate(s, false);
+class SensorsHidlTest : public SensorsHidlTestBase {
+   protected:
+    SensorInfo defaultSensorByType(SensorType type) override;
+    std::vector<SensorInfo> getSensorsList();
+    // implementation wrapper
+    Return<void> getSensorsList(ISensors::getSensorsList_cb _hidl_cb) override {
+        return S()->getSensorsList(_hidl_cb);
     }
-    mSensorHandles.clear();
 
-    // stop all direct report and channels
-    for (auto c : mDirectChannelHandles) {
-      // disable all reports
-      S()->configDirectReport(-1, c, RateLevel::STOP, [] (auto, auto){});
-      S()->unregisterDirectChannel(c);
+    Return<Result> activate(int32_t sensorHandle, bool enabled) override;
+
+    Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                         int64_t maxReportLatencyNs) override {
+        return S()->batch(sensorHandle, samplingPeriodNs, maxReportLatencyNs);
     }
-    mDirectChannelHandles.clear();
-  }
 
- protected:
-  SensorInfo defaultSensorByType(SensorType type);
-  std::vector<SensorInfo> getSensorsList();
-  std::vector<Event> collectEvents(useconds_t timeLimitUs, size_t nEventLimit,
-        bool clearBeforeStart = true, bool changeCollection = true);
+    Return<Result> flush(int32_t sensorHandle) override { return S()->flush(sensorHandle); }
 
-  // implementation wrapper
-  Return<void> getSensorsList(ISensors::getSensorsList_cb _hidl_cb) {
-    return S()->getSensorsList(_hidl_cb);
-  }
+    Return<Result> injectSensorData(const Event& event) override {
+        return S()->injectSensorData(event);
+    }
 
-  Return<Result> activate(
-          int32_t sensorHandle, bool enabled);
+    Return<void> registerDirectChannel(const SharedMemInfo& mem,
+                                       ISensors::registerDirectChannel_cb _hidl_cb) override;
 
-  Return<Result> batch(
-          int32_t sensorHandle,
-          int64_t samplingPeriodNs,
-          int64_t maxReportLatencyNs) {
-    return S()->batch(sensorHandle, samplingPeriodNs, maxReportLatencyNs);
-  }
+    Return<Result> unregisterDirectChannel(int32_t channelHandle) override {
+        return S()->unregisterDirectChannel(channelHandle);
+    }
 
-  Return<Result> flush(int32_t sensorHandle) {
-    return S()->flush(sensorHandle);
-  }
+    Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
+                                    ISensors::configDirectReport_cb _hidl_cb) override {
+        return S()->configDirectReport(sensorHandle, channelHandle, rate, _hidl_cb);
+    }
 
-  Return<Result> injectSensorData(const Event& event) {
-    return S()->injectSensorData(event);
-  }
+    inline sp<ISensors>& S() { return SensorsHidlEnvironmentV1_0::Instance()->sensors; }
 
-  Return<void> registerDirectChannel(
-          const SharedMemInfo& mem, ISensors::registerDirectChannel_cb _hidl_cb);
-
-  Return<Result> unregisterDirectChannel(int32_t channelHandle) {
-    return S()->unregisterDirectChannel(channelHandle);
-  }
-
-  Return<void> configDirectReport(
-          int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
-          ISensors::configDirectReport_cb _hidl_cb) {
-    return S()->configDirectReport(sensorHandle, channelHandle, rate, _hidl_cb);
-  }
-
-  inline sp<ISensors>& S() {
-    return SensorsHidlEnvironment::Instance()->sensors;
-  }
-
-  inline static SensorFlagBits extractReportMode(uint64_t flag) {
-    return (SensorFlagBits) (flag
-        & ((uint64_t) SensorFlagBits::CONTINUOUS_MODE
-          | (uint64_t) SensorFlagBits::ON_CHANGE_MODE
-          | (uint64_t) SensorFlagBits::ONE_SHOT_MODE
-          | (uint64_t) SensorFlagBits::SPECIAL_REPORTING_MODE));
-  }
-
-  inline static bool isMetaSensorType(SensorType type) {
-    return (type == SensorType::META_DATA
-            || type == SensorType::DYNAMIC_SENSOR_META
-            || type == SensorType::ADDITIONAL_INFO);
-  }
-
-  inline static bool isValidType(SensorType type) {
-    return (int32_t) type > 0;
-  }
-
-  void testStreamingOperation(SensorType type,
-                              std::chrono::nanoseconds samplingPeriod,
-                              std::chrono::seconds duration,
-                              const SensorEventsChecker &checker);
-  void testSamplingRateHotSwitchOperation(SensorType type, bool fastToSlow = true);
-  void testBatchingOperation(SensorType type);
-  void testDirectReportOperation(
-      SensorType type, SharedMemType memType, RateLevel rate, const SensorEventsChecker &checker);
-
-  static void assertTypeMatchStringType(SensorType type, const hidl_string& stringType);
-  static void assertTypeMatchReportMode(SensorType type, SensorFlagBits reportMode);
-  static void assertDelayMatchReportMode(
-          int32_t minDelay, int32_t maxDelay, SensorFlagBits reportMode);
-  static SensorFlagBits expectedReportModeForType(SensorType type);
-  static bool isDirectReportRateSupported(SensorInfo sensor, RateLevel rate);
-  static bool isDirectChannelTypeSupported(SensorInfo sensor, SharedMemType type);
-
-  // checkers
-  static const Vec3NormChecker sAccelNormChecker;
-  static const Vec3NormChecker sGyroNormChecker;
-
-  // all sensors and direct channnels used
-  std::unordered_set<int32_t> mSensorHandles;
-  std::unordered_set<int32_t> mDirectChannelHandles;
+    SensorsHidlEnvironmentBase* getEnvironment() override {
+        return SensorsHidlEnvironmentV1_0::Instance();
+    }
 };
 
-const Vec3NormChecker SensorsHidlTest::sAccelNormChecker(
-        Vec3NormChecker::byNominal(GRAVITY_EARTH, 1.0f/*m/s^2*/));
-const Vec3NormChecker SensorsHidlTest::sGyroNormChecker(
-        Vec3NormChecker::byNominal(0.f, 0.1f/*rad/s*/));
-
 Return<Result> SensorsHidlTest::activate(int32_t sensorHandle, bool enabled) {
   // If activating a sensor, add the handle in a set so that when test fails it can be turned off.
   // The handle is not removed when it is deactivating on purpose so that it is not necessary to
@@ -618,195 +101,6 @@
   return Void();
 }
 
-std::vector<Event> SensorsHidlTest::collectEvents(useconds_t timeLimitUs, size_t nEventLimit,
-      bool clearBeforeStart, bool changeCollection) {
-  std::vector<Event> events;
-  constexpr useconds_t SLEEP_GRANULARITY = 100*1000; //granularity 100 ms
-
-  ALOGI("collect max of %zu events for %d us, clearBeforeStart %d",
-        nEventLimit, timeLimitUs, clearBeforeStart);
-
-  if (changeCollection) {
-    SensorsHidlEnvironment::Instance()->setCollection(true);
-  }
-  if (clearBeforeStart) {
-    SensorsHidlEnvironment::Instance()->catEvents(nullptr);
-  }
-
-  while (timeLimitUs > 0) {
-    useconds_t duration = std::min(SLEEP_GRANULARITY, timeLimitUs);
-    usleep(duration);
-    timeLimitUs -= duration;
-
-    SensorsHidlEnvironment::Instance()->catEvents(&events);
-    if (events.size() >= nEventLimit) {
-      break;
-    }
-    ALOGV("time to go = %d, events to go = %d",
-          (int)timeLimitUs, (int)(nEventLimit - events.size()));
-  }
-
-  if (changeCollection) {
-    SensorsHidlEnvironment::Instance()->setCollection(false);
-  }
-  return events;
-}
-
-void SensorsHidlTest::assertTypeMatchStringType(SensorType type, const hidl_string& stringType) {
-
-  if (type >= SensorType::DEVICE_PRIVATE_BASE) {
-    return;
-  }
-
-  switch (type) {
-#define CHECK_TYPE_STRING_FOR_SENSOR_TYPE(type) \
-    case SensorType::type: ASSERT_STREQ(SENSOR_STRING_TYPE_ ## type, stringType.c_str()); break;
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ACCELEROMETER);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ACCELEROMETER_UNCALIBRATED);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ADDITIONAL_INFO);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(AMBIENT_TEMPERATURE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(DEVICE_ORIENTATION);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(DYNAMIC_SENSOR_META);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GAME_ROTATION_VECTOR);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GEOMAGNETIC_ROTATION_VECTOR);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GLANCE_GESTURE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GRAVITY);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GYROSCOPE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GYROSCOPE_UNCALIBRATED);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(HEART_BEAT);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(HEART_RATE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LIGHT);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LINEAR_ACCELERATION);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LOW_LATENCY_OFFBODY_DETECT);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MAGNETIC_FIELD);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MAGNETIC_FIELD_UNCALIBRATED);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MOTION_DETECT);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ORIENTATION);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PICK_UP_GESTURE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(POSE_6DOF);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PRESSURE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PROXIMITY);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(RELATIVE_HUMIDITY);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ROTATION_VECTOR);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(SIGNIFICANT_MOTION);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STATIONARY_DETECT);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STEP_COUNTER);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STEP_DETECTOR);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(TEMPERATURE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(TILT_DETECTOR);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(WAKE_GESTURE);
-    CHECK_TYPE_STRING_FOR_SENSOR_TYPE(WRIST_TILT_GESTURE);
-    default:
-      FAIL() << "Type " << static_cast<int>(type) << " in android defined range is not checked, "
-             << "stringType = " << stringType;
-#undef CHECK_TYPE_STRING_FOR_SENSOR_TYPE
-  }
-}
-
-void SensorsHidlTest::assertTypeMatchReportMode(SensorType type, SensorFlagBits reportMode) {
-  if (type >= SensorType::DEVICE_PRIVATE_BASE) {
-    return;
-  }
-
-  SensorFlagBits expected = expectedReportModeForType(type);
-
-  ASSERT_TRUE(expected == (SensorFlagBits) -1 || expected == reportMode)
-      << "reportMode=" << static_cast<int>(reportMode)
-      << "expected=" << static_cast<int>(expected);
-}
-
-void SensorsHidlTest::assertDelayMatchReportMode(
-    int32_t minDelay, int32_t maxDelay, SensorFlagBits reportMode) {
-  switch(reportMode) {
-    case SensorFlagBits::CONTINUOUS_MODE:
-      ASSERT_LT(0, minDelay);
-      ASSERT_LE(0, maxDelay);
-      break;
-    case SensorFlagBits::ON_CHANGE_MODE:
-      ASSERT_LE(0, minDelay);
-      ASSERT_LE(0, maxDelay);
-      break;
-    case SensorFlagBits::ONE_SHOT_MODE:
-      ASSERT_EQ(-1, minDelay);
-      ASSERT_EQ(0, maxDelay);
-      break;
-    case SensorFlagBits::SPECIAL_REPORTING_MODE:
-      // do not enforce anything for special reporting mode
-      break;
-    default:
-      FAIL() << "Report mode " << static_cast<int>(reportMode) << " not checked";
-  }
-}
-
-// return -1 means no expectation for this type
-SensorFlagBits SensorsHidlTest::expectedReportModeForType(SensorType type) {
-  switch (type) {
-    case SensorType::ACCELEROMETER:
-    case SensorType::ACCELEROMETER_UNCALIBRATED:
-    case SensorType::GYROSCOPE:
-    case SensorType::MAGNETIC_FIELD:
-    case SensorType::ORIENTATION:
-    case SensorType::PRESSURE:
-    case SensorType::TEMPERATURE:
-    case SensorType::GRAVITY:
-    case SensorType::LINEAR_ACCELERATION:
-    case SensorType::ROTATION_VECTOR:
-    case SensorType::MAGNETIC_FIELD_UNCALIBRATED:
-    case SensorType::GAME_ROTATION_VECTOR:
-    case SensorType::GYROSCOPE_UNCALIBRATED:
-    case SensorType::GEOMAGNETIC_ROTATION_VECTOR:
-    case SensorType::POSE_6DOF:
-    case SensorType::HEART_BEAT:
-      return SensorFlagBits::CONTINUOUS_MODE;
-
-    case SensorType::LIGHT:
-    case SensorType::PROXIMITY:
-    case SensorType::RELATIVE_HUMIDITY:
-    case SensorType::AMBIENT_TEMPERATURE:
-    case SensorType::HEART_RATE:
-    case SensorType::DEVICE_ORIENTATION:
-    case SensorType::STEP_COUNTER:
-    case SensorType::LOW_LATENCY_OFFBODY_DETECT:
-      return SensorFlagBits::ON_CHANGE_MODE;
-
-    case SensorType::SIGNIFICANT_MOTION:
-    case SensorType::WAKE_GESTURE:
-    case SensorType::GLANCE_GESTURE:
-    case SensorType::PICK_UP_GESTURE:
-    case SensorType::MOTION_DETECT:
-    case SensorType::STATIONARY_DETECT:
-      return SensorFlagBits::ONE_SHOT_MODE;
-
-    case SensorType::STEP_DETECTOR:
-    case SensorType::TILT_DETECTOR:
-    case SensorType::WRIST_TILT_GESTURE:
-    case SensorType::DYNAMIC_SENSOR_META:
-      return SensorFlagBits::SPECIAL_REPORTING_MODE;
-
-    default:
-      ALOGW("Type %d is not implemented in expectedReportModeForType", (int)type);
-      return (SensorFlagBits)-1;
-  }
-}
-
-bool SensorsHidlTest::isDirectReportRateSupported(SensorInfo sensor, RateLevel rate) {
-  unsigned int r =
-      static_cast<unsigned int>(sensor.flags & SensorFlagBits::MASK_DIRECT_REPORT)
-        >> static_cast<unsigned int>(SensorFlagShift::DIRECT_REPORT);
-  return r >= static_cast<unsigned int>(rate);
-}
-
-bool SensorsHidlTest::isDirectChannelTypeSupported(SensorInfo sensor, SharedMemType type) {
-  switch (type) {
-    case SharedMemType::ASHMEM:
-      return (sensor.flags & SensorFlagBits::DIRECT_CHANNEL_ASHMEM) != 0;
-    case SharedMemType::GRALLOC:
-      return (sensor.flags & SensorFlagBits::DIRECT_CHANNEL_GRALLOC) != 0;
-    default:
-      return false;
-  }
-}
-
 SensorInfo SensorsHidlTest::defaultSensorByType(SensorType type) {
   SensorInfo ret;
 
@@ -951,69 +245,6 @@
     ASSERT_EQ(Result::OK, S()->setOperationMode(OperationMode::NORMAL));
 }
 
-void SensorsHidlTest::testStreamingOperation(SensorType type,
-                                             std::chrono::nanoseconds samplingPeriod,
-                                             std::chrono::seconds duration,
-                                             const SensorEventsChecker &checker) {
-  std::vector<Event> events;
-  std::vector<Event> sensorEvents;
-
-  const int64_t samplingPeriodInNs = samplingPeriod.count();
-  const int64_t batchingPeriodInNs = 0; // no batching
-  const useconds_t minTimeUs = std::chrono::microseconds(duration).count();
-  const size_t minNEvent = duration / samplingPeriod;
-
-  SensorInfo sensor = defaultSensorByType(type);
-
-  if (!isValidType(sensor.type)) {
-    // no default sensor of this type
-    return;
-  }
-
-  if (std::chrono::microseconds(sensor.minDelay) > samplingPeriod) {
-    // rate not supported
-    return;
-  }
-
-  int32_t handle = sensor.sensorHandle;
-
-  ASSERT_EQ(batch(handle, samplingPeriodInNs, batchingPeriodInNs), Result::OK);
-  ASSERT_EQ(activate(handle, 1), Result::OK);
-  events = collectEvents(minTimeUs, minNEvent, true /*clearBeforeStart*/);
-  ASSERT_EQ(activate(handle, 0), Result::OK);
-
-  ALOGI("Collected %zu samples", events.size());
-
-  ASSERT_GT(events.size(), 0u);
-
-  bool handleMismatchReported = false;
-  bool metaSensorTypeErrorReported = false;
-  for (auto & e : events) {
-    if (e.sensorType == type) {
-      // avoid generating hundreds of error
-      if (!handleMismatchReported) {
-        EXPECT_EQ(e.sensorHandle, handle)
-            << (handleMismatchReported = true,
-                "Event of the same type must come from the sensor registered");
-      }
-      sensorEvents.push_back(e);
-    } else {
-      // avoid generating hundreds of error
-      if (!metaSensorTypeErrorReported) {
-        EXPECT_TRUE(isMetaSensorType(e.sensorType))
-            << (metaSensorTypeErrorReported = true,
-                "Only meta types are allowed besides the type registered");
-      }
-    }
-  }
-
-  std::string s;
-  EXPECT_TRUE(checker.check(sensorEvents, &s)) << s;
-
-  EXPECT_GE(sensorEvents.size(),
-            minNEvent / 2);  // make sure returned events are not all meta
-}
-
 // Test if sensor hal can do UI speed accelerometer streaming properly
 TEST_F(SensorsHidlTest, AccelerometerStreamingOperationSlow) {
   testStreamingOperation(SensorType::ACCELEROMETER,
@@ -1086,103 +317,6 @@
                          NullChecker());
 }
 
-void SensorsHidlTest::testSamplingRateHotSwitchOperation(SensorType type, bool fastToSlow) {
-  std::vector<Event> events1, events2;
-
-  constexpr int64_t batchingPeriodInNs = 0; // no batching
-  constexpr int64_t collectionTimeoutUs = 60000000; // 60s
-  constexpr size_t minNEvent = 50;
-
-  SensorInfo sensor = defaultSensorByType(type);
-
-  if (!isValidType(sensor.type)) {
-    // no default sensor of this type
-    return;
-  }
-
-  int32_t handle = sensor.sensorHandle;
-  int64_t minSamplingPeriodInNs = sensor.minDelay * 1000ll;
-  int64_t maxSamplingPeriodInNs = sensor.maxDelay * 1000ll;
-
-  if (minSamplingPeriodInNs == maxSamplingPeriodInNs) {
-    // only support single rate
-    return;
-  }
-
-  int64_t firstCollectionPeriod = fastToSlow ? minSamplingPeriodInNs : maxSamplingPeriodInNs;
-  int64_t secondCollectionPeriod = !fastToSlow ? minSamplingPeriodInNs : maxSamplingPeriodInNs;
-
-  // first collection
-  ASSERT_EQ(batch(handle, firstCollectionPeriod, batchingPeriodInNs), Result::OK);
-  ASSERT_EQ(activate(handle, 1), Result::OK);
-
-  usleep(500000); // sleep 0.5 sec to wait for change rate to happen
-  events1 = collectEvents(collectionTimeoutUs, minNEvent);
-
-  // second collection, without stop sensor
-  ASSERT_EQ(batch(handle, secondCollectionPeriod, batchingPeriodInNs), Result::OK);
-
-  usleep(500000); // sleep 0.5 sec to wait for change rate to happen
-  events2 = collectEvents(collectionTimeoutUs, minNEvent);
-
-  // end of collection, stop sensor
-  ASSERT_EQ(activate(handle, 0), Result::OK);
-
-  ALOGI("Collected %zu fast samples and %zu slow samples", events1.size(), events2.size());
-
-  ASSERT_GT(events1.size(), 0u);
-  ASSERT_GT(events2.size(), 0u);
-
-  int64_t minDelayAverageInterval, maxDelayAverageInterval;
-  std::vector<Event> &minDelayEvents(fastToSlow ? events1 : events2);
-  std::vector<Event> &maxDelayEvents(fastToSlow ? events2 : events1);
-
-  size_t nEvent = 0;
-  int64_t prevTimestamp = -1;
-  int64_t timestampInterval = 0;
-  for (auto & e : minDelayEvents) {
-    if (e.sensorType == type) {
-      ASSERT_EQ(e.sensorHandle, handle);
-      if (prevTimestamp > 0) {
-        timestampInterval += e.timestamp - prevTimestamp;
-      }
-      prevTimestamp = e.timestamp;
-      ++ nEvent;
-    }
-  }
-  ASSERT_GT(nEvent, 2u);
-  minDelayAverageInterval = timestampInterval / (nEvent - 1);
-
-  nEvent = 0;
-  prevTimestamp = -1;
-  timestampInterval = 0;
-  for (auto & e : maxDelayEvents) {
-    if (e.sensorType == type) {
-      ASSERT_EQ(e.sensorHandle, handle);
-      if (prevTimestamp > 0) {
-        timestampInterval += e.timestamp - prevTimestamp;
-      }
-      prevTimestamp = e.timestamp;
-      ++ nEvent;
-    }
-  }
-  ASSERT_GT(nEvent, 2u);
-  maxDelayAverageInterval = timestampInterval / (nEvent - 1);
-
-  // change of rate is significant.
-  ALOGI("min/maxDelayAverageInterval = %" PRId64 " %" PRId64,
-      minDelayAverageInterval, maxDelayAverageInterval);
-  EXPECT_GT((maxDelayAverageInterval - minDelayAverageInterval), minDelayAverageInterval / 10);
-
-  // fastest rate sampling time is close to spec
-  EXPECT_LT(std::abs(minDelayAverageInterval - minSamplingPeriodInNs),
-      minSamplingPeriodInNs / 10);
-
-  // slowest rate sampling time is close to spec
-  EXPECT_LT(std::abs(maxDelayAverageInterval - maxSamplingPeriodInNs),
-      maxSamplingPeriodInNs / 10);
-}
-
 // Test if sensor hal can do accelerometer sampling rate switch properly when sensor is active
 TEST_F(SensorsHidlTest, AccelerometerSamplingPeriodHotSwitchOperation) {
   testSamplingRateHotSwitchOperation(SensorType::ACCELEROMETER);
@@ -1201,74 +335,6 @@
   testSamplingRateHotSwitchOperation(SensorType::MAGNETIC_FIELD, false /*fastToSlow*/);
 }
 
-void SensorsHidlTest::testBatchingOperation(SensorType type) {
-  std::vector<Event> events;
-
-  constexpr int64_t maxBatchingTestTimeNs = 30ull * 1000 * 1000 * 1000;
-  constexpr int64_t oneSecondInNs = 1ull * 1000 * 1000 * 1000;
-
-  SensorInfo sensor = defaultSensorByType(type);
-
-  if (!isValidType(sensor.type)) {
-    // no default sensor of this type
-    return;
-  }
-
-  int32_t handle = sensor.sensorHandle;
-  int64_t minSamplingPeriodInNs = sensor.minDelay * 1000ll;
-  uint32_t minFifoCount = sensor.fifoReservedEventCount;
-  int64_t batchingPeriodInNs = minFifoCount * minSamplingPeriodInNs;
-
-  if (batchingPeriodInNs < oneSecondInNs) {
-    // batching size too small to test reliably
-    return;
-  }
-
-  batchingPeriodInNs = std::min(batchingPeriodInNs, maxBatchingTestTimeNs);
-
-  ALOGI("Test batching for %d ms", (int)(batchingPeriodInNs / 1000 / 1000));
-
-  int64_t allowedBatchDeliverTimeNs =
-      std::max(oneSecondInNs, batchingPeriodInNs / 10);
-
-  ASSERT_EQ(batch(handle, minSamplingPeriodInNs, INT64_MAX), Result::OK);
-  ASSERT_EQ(activate(handle, 1), Result::OK);
-
-  usleep(500000); // sleep 0.5 sec to wait for initialization
-  ASSERT_EQ(flush(handle), Result::OK);
-
-  // wait for 80% of the reserved batching period
-  // there should not be any significant amount of events
-  // since collection is not enabled all events will go down the drain
-  usleep(batchingPeriodInNs / 1000 * 8 / 10);
-
-  SensorsHidlEnvironment::Instance()->setCollection(true);
-  // clean existing collections
-  collectEvents(0 /*timeLimitUs*/, 0/*nEventLimit*/,
-        true /*clearBeforeStart*/, false /*change collection*/);
-
-  // 0.8 + 0.2 times the batching period
-  usleep(batchingPeriodInNs / 1000 * 8 / 10);
-  ASSERT_EQ(flush(handle), Result::OK);
-
-  // plus some time for the event to deliver
-  events = collectEvents(allowedBatchDeliverTimeNs / 1000,
-        minFifoCount, false /*clearBeforeStart*/, false /*change collection*/);
-
-  SensorsHidlEnvironment::Instance()->setCollection(false);
-  ASSERT_EQ(activate(handle, 0), Result::OK);
-
-  size_t nEvent = 0;
-  for (auto & e : events) {
-    if (e.sensorType == type && e.sensorHandle == handle) {
-      ++ nEvent;
-    }
-  }
-
-  // at least reach 90% of advertised capacity
-  ASSERT_GT(nEvent, (size_t)(minFifoCount * 9 / 10));
-}
-
 // Test if sensor hal can do accelerometer batching properly
 TEST_F(SensorsHidlTest, AccelerometerBatchingOperation) {
   testBatchingOperation(SensorType::ACCELEROMETER);
@@ -1284,124 +350,6 @@
   testBatchingOperation(SensorType::MAGNETIC_FIELD);
 }
 
-void SensorsHidlTest::testDirectReportOperation(
-    SensorType type, SharedMemType memType, RateLevel rate, const SensorEventsChecker &checker) {
-  constexpr size_t kEventSize = static_cast<size_t>(SensorsEventFormatOffset::TOTAL_LENGTH);
-  constexpr size_t kNEvent = 4096;
-  constexpr size_t kMemSize = kEventSize * kNEvent;
-
-  constexpr float kNormalNominal = 50;
-  constexpr float kFastNominal = 200;
-  constexpr float kVeryFastNominal = 800;
-
-  constexpr float kNominalTestTimeSec = 1.f;
-  constexpr float kMaxTestTimeSec = kNominalTestTimeSec + 0.5f; // 0.5 second for initialization
-
-  SensorInfo sensor = defaultSensorByType(type);
-
-  if (!isValidType(sensor.type)) {
-    // no default sensor of this type
-    return;
-  }
-
-  if (!isDirectReportRateSupported(sensor, rate)) {
-    return;
-  }
-
-  if (!isDirectChannelTypeSupported(sensor, memType)) {
-    return;
-  }
-
-  std::unique_ptr<SensorsTestSharedMemory>
-      mem(SensorsTestSharedMemory::create(memType, kMemSize));
-  ASSERT_NE(mem, nullptr);
-
-  char* buffer = mem->getBuffer();
-  // fill memory with data
-  for (size_t i = 0; i < kMemSize; ++i) {
-    buffer[i] = '\xcc';
-  }
-
-  int32_t channelHandle;
-  registerDirectChannel(mem->getSharedMemInfo(),
-      [&channelHandle] (auto result, auto channelHandle_) {
-          ASSERT_EQ(result, Result::OK);
-          channelHandle = channelHandle_;
-      });
-
-  // check memory is zeroed
-  for (size_t i = 0; i < kMemSize; ++i) {
-    ASSERT_EQ(buffer[i], '\0');
-  }
-
-  int32_t eventToken;
-  configDirectReport(sensor.sensorHandle, channelHandle, rate,
-      [&eventToken] (auto result, auto token) {
-          ASSERT_EQ(result, Result::OK);
-          eventToken = token;
-      });
-
-  usleep(static_cast<useconds_t>(kMaxTestTimeSec * 1e6f));
-  auto events = mem->parseEvents();
-
-  // find norminal rate
-  float nominalFreq = 0.f;
-  switch (rate) {
-      case RateLevel::NORMAL:
-          nominalFreq = kNormalNominal;
-          break;
-      case RateLevel::FAST:
-          nominalFreq = kFastNominal;
-          break;
-      case RateLevel::VERY_FAST:
-          nominalFreq = kVeryFastNominal;
-          break;
-      case RateLevel::STOP:
-          FAIL();
-  }
-
-  // allowed to be between 55% and 220% of nominal freq
-  ASSERT_GT(events.size(), static_cast<size_t>(nominalFreq * 0.55f * kNominalTestTimeSec));
-  ASSERT_LT(events.size(), static_cast<size_t>(nominalFreq * 2.2f * kMaxTestTimeSec));
-
-  int64_t lastTimestamp = 0;
-  bool typeErrorReported = false;
-  bool tokenErrorReported = false;
-  bool timestampErrorReported = false;
-  std::vector<Event> sensorEvents;
-  for (auto &e : events) {
-    if (!tokenErrorReported) {
-      EXPECT_EQ(eventToken, e.sensorHandle)
-          << (tokenErrorReported = true,
-            "Event token does not match that retured from configDirectReport");
-    }
-
-    if (isMetaSensorType(e.sensorType)) {
-        continue;
-    }
-    sensorEvents.push_back(e);
-
-    if (!typeErrorReported) {
-      EXPECT_EQ(type, e.sensorType)
-          << (typeErrorReported = true,
-              "Type in event does not match type of sensor registered.");
-    }
-    if (!timestampErrorReported) {
-      EXPECT_GT(e.timestamp, lastTimestamp)
-          << (timestampErrorReported = true, "Timestamp not monotonically increasing");
-    }
-    lastTimestamp = e.timestamp;
-  }
-
-  std::string s;
-  EXPECT_TRUE(checker.check(sensorEvents, &s)) << s;
-
-  // stop sensor and unregister channel
-  configDirectReport(sensor.sensorHandle, channelHandle, RateLevel::STOP,
-                     [](auto result, auto) { EXPECT_EQ(result, Result::OK); });
-  EXPECT_EQ(unregisterDirectChannel(channelHandle), Result::OK);
-}
-
 // Test sensor event direct report with ashmem for accel sensor at normal rate
 TEST_F(SensorsHidlTest, AccelerometerAshmemDirectReportOperationNormal) {
   testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::ASHMEM, RateLevel::NORMAL,
@@ -1511,11 +459,11 @@
 }
 
 int main(int argc, char **argv) {
-  ::testing::AddGlobalTestEnvironment(SensorsHidlEnvironment::Instance());
-  ::testing::InitGoogleTest(&argc, argv);
-  SensorsHidlEnvironment::Instance()->init(&argc, argv);
-  int status = RUN_ALL_TESTS();
-  ALOGI("Test result = %d", status);
-  return status;
+    ::testing::AddGlobalTestEnvironment(SensorsHidlEnvironmentV1_0::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    SensorsHidlEnvironmentV1_0::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
 }
 // vim: set ts=2 sw=2
diff --git a/sensors/2.0/Android.bp b/sensors/2.0/Android.bp
new file mode 100644
index 0000000..57d45ff
--- /dev/null
+++ b/sensors/2.0/Android.bp
@@ -0,0 +1,25 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.sensors@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ISensors.hal",
+        "ISensorsCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.sensors@1.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "EventQueueFlagBits",
+        "SensorTimeout",
+        "WakeLockQueueFlagBits",
+    ],
+    gen_java: false,
+}
+
diff --git a/sensors/2.0/ISensors.hal b/sensors/2.0/ISensors.hal
new file mode 100644
index 0000000..3a9af46
--- /dev/null
+++ b/sensors/2.0/ISensors.hal
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors@2.0;
+
+import @1.0::Event;
+import @1.0::OperationMode;
+import @1.0::RateLevel;
+import @1.0::Result;
+import @1.0::SensorInfo;
+import @1.0::SharedMemInfo;
+import @2.0::ISensorsCallback;
+
+interface ISensors {
+    /**
+     * Enumerate all available (static) sensors.
+     *
+     * The SensorInfo for each sensor returned by getSensorsList must be stable
+     * from the initial call to getSensorsList after a device boot until the
+     * entire system restarts. The SensorInfo for each sensor must not change
+     * between subsequent calls to getSensorsList, even across restarts of the
+     * HAL and its dependencies (for example, the sensor handle for a given
+     * sensor must not change across HAL restarts).
+     */
+    getSensorsList() generates (vec<SensorInfo> list);
+
+    /**
+     * Place the module in a specific mode. The following modes are defined
+     *
+     *  SENSOR_HAL_NORMAL_MODE - Normal operation. Default state of the module.
+     *
+     *  SENSOR_HAL_DATA_INJECTION_MODE - Loopback mode.
+     *    Data is injected for the supported sensors by the sensor service in
+     *    this mode.
+     *
+     * @return OK on success
+     *     BAD_VALUE if requested mode is not supported
+     *     PERMISSION_DENIED if operation is not allowed
+     */
+    setOperationMode(OperationMode mode) generates (Result result);
+
+    /**
+     * Activate/de-activate one sensor.
+     *
+     * After sensor de-activation, existing sensor events that have not
+     * been written to the event queue must be abandoned immediately so that
+     * subsequent activations do not get stale sensor events (events
+     * that are generated prior to the latter activation).
+     *
+     * @param sensorHandle is the handle of the sensor to change.
+     * @param enabled set to true to enable, or false to disable the sensor.
+     * @return result OK on success, BAD_VALUE if sensorHandle is invalid.
+     */
+    activate(int32_t sensorHandle, bool enabled) generates (Result result);
+
+    /**
+     * Initialize the Sensors HAL's Fast Message Queues (FMQ) and callback.
+     *
+     * The Fast Message Queues (FMQ) that are used to send data between the
+     * framework and the HAL. The callback is used by the HAL to notify the
+     * framework of asynchronous events, such as a dynamic sensor connection.
+     *
+     * The Event FMQ is used to transport sensor events from the HAL to the
+     * framework. The Event FMQ is created using the eventQueueDescriptor.
+     * Data may only be written to the Event FMQ. Data must not be read from
+     * the Event FMQ since the framework is the only reader. Upon receiving
+     * sensor events, the HAL writes the sensor events to the Event FMQ.
+     *
+     * Once the HAL is finished writing sensor events to the Event FMQ, the HAL
+     * must notify the framework that sensor events are available to be read and
+     * processed. This is accomplished by either:
+     *     1) Calling the Event FMQ’s EventFlag::wake() function with
+              EventQueueFlagBits::READ_AND_PROCESS
+     *     2) Setting the write notification in the Event FMQ’s writeBlocking()
+     *        function to EventQueueFlagBits::READ_AND_PROCESS.
+     *
+     * If the Event FMQ’s writeBlocking() function is used, the read
+     * notification must be set to EventQueueFlagBits::EVENTS_READ in order to
+     * be notified and unblocked when the framework has successfully read events
+     * from the Event FMQ.
+     *
+     * The Wake Lock FMQ is used by the framework to notify the HAL when it is
+     * safe to release its wake_lock. When the framework receives WAKE_UP events
+     * from the Event FMQ and the framework has acquired a wake_lock, the
+     * framework must write the number of WAKE_UP events processed to the Wake
+     * Lock FMQ. When the HAL reads the data from the Wake Lock FMQ, the HAL
+     * decrements its current count of unprocessed WAKE_UP events and releases
+     * its wake_lock if the current count of unprocessed WAKE_UP events is
+     * zero.
+     *
+     * The framework must use the WakeLockQueueFlagBits::DATA_WRITTEN value to
+     * notify the HAL that data has been written to the Wake Lock FMQ and must
+     * be read by HAL.
+     *
+     * The ISensorsCallback is used by the HAL to notify the framework of
+     * asynchronous events, such as a dynamic sensor connection.
+     *
+     * The name of any wake_lock acquired by the Sensors HAL for WAKE_UP events
+     * must begin with "SensorsHAL_WAKEUP".
+     *
+     * If WAKE_LOCK_TIMEOUT_SECONDS has elapsed since the most recent WAKE_UP
+     * event was written to the Event FMQ without receiving a message on the
+     * Wake Lock FMQ, then any held wake_lock for WAKE_UP events must be
+     * released.
+     *
+     * If either the Event FMQ or the Wake Lock FMQ is already initialized when
+     * initialize is invoked, then both existing FMQs must be discarded and the
+     * new descriptors must be used to create new FMQs within the HAL. The
+     * number of outstanding WAKE_UP events should also be reset to zero, and
+     * any outstanding wake_locks held as a result of WAKE_UP events should be
+     * released.
+     *
+     * All active sensor requests and direct channels must be closed and
+     * properly cleaned up when initialize is called in order to ensure that the
+     * HAL and framework's state is consistent (e.g. after a runtime restart).
+     *
+     * initialize must be thread safe and prevent concurrent calls
+     * to initialize from simultaneously modifying state.
+     *
+     * @param eventQueueDescriptor Fast Message Queue descriptor that is used to
+     *     create the Event FMQ which is where sensor events are written. The
+     *     descriptor is obtained from the framework's FMQ that is used to read
+     *     sensor events.
+     * @param wakeLockDescriptor Fast Message Queue descriptor that is used to
+     *     create the Wake Lock FMQ which is where wake_lock events are read
+     *     from. The descriptor is obtained from the framework's FMQ that is
+     *     used to write wake_lock events.
+     * @param sensorsCallback sensors callback that receives asynchronous data
+     *     from the Sensors HAL.
+     * @return result OK on success; BAD_VALUE if descriptor is invalid (such
+     *     as null)
+     */
+    @entry
+    @callflow(next = {"getSensorsList"})
+    initialize(fmq_sync<Event> eventQueueDescriptor,
+               fmq_sync<uint32_t> wakeLockDescriptor,
+               ISensorsCallback sensorsCallback)
+        generates
+              (Result result);
+
+    /**
+     * Sets a sensor’s parameters, including sampling frequency and maximum
+     * report latency. This function can be called while the sensor is
+     * activated, in which case it must not cause any sensor measurements to
+     * be lost: transitioning from one sampling rate to the other cannot cause
+     * lost events, nor can transitioning from a high maximum report latency to
+     * a low maximum report latency.
+     *
+     * @param sensorHandle handle of sensor to be changed.
+     * @param samplingPeriodNs specifies sensor sample period in nanoseconds.
+     * @param maxReportLatencyNs allowed delay time before an event is sampled
+     *     to time of report.
+     * @return result OK on success, BAD_VALUE if any parameters are invalid.
+     */
+    batch(int32_t sensorHandle,
+          int64_t samplingPeriodNs,
+          int64_t maxReportLatencyNs)
+        generates (
+          Result result);
+
+    /**
+     * Trigger a flush of internal FIFO.
+     *
+     * Flush adds a FLUSH_COMPLETE metadata event to the end of the "batch mode"
+     * FIFO for the specified sensor and flushes the FIFO.  If the FIFO is empty
+     * or if the sensor doesn't support batching (FIFO size zero), return
+     * SUCCESS and add a trivial FLUSH_COMPLETE event added to the event stream.
+     * This applies to all sensors other than one-shot sensors. If the sensor
+     * is a one-shot sensor, flush must return BAD_VALUE and not generate any
+     * flush complete metadata.  If the sensor is not active at the time flush()
+     * is called, flush() return BAD_VALUE.
+     *
+     * @param sensorHandle handle of sensor to be flushed.
+     * @return result OK on success and BAD_VALUE if sensorHandle is invalid.
+     */
+    flush(int32_t sensorHandle) generates (Result result);
+
+    /**
+     * Inject a single sensor event or push operation environment parameters to
+     * device.
+     *
+     * When device is in NORMAL mode, this function is called to push operation
+     * environment data to device. In this operation, Event is always of
+     * SensorType::AdditionalInfo type. See operation evironment parameters
+     * section in AdditionalInfoType.
+     *
+     * When device is in DATA_INJECTION mode, this function is also used for
+     * injecting sensor events.
+     *
+     * Regardless of OperationMode, injected SensorType::ADDITIONAL_INFO
+     * type events should not be routed back to the sensor event queue.
+     *
+     * @see AdditionalInfoType
+     * @see OperationMode
+     * @param event sensor event to be injected
+     * @return result OK on success; PERMISSION_DENIED if operation is not
+     *     allowed; INVALID_OPERATION, if this functionality is unsupported;
+     *     BAD_VALUE if sensor event cannot be injected.
+     */
+    injectSensorData(Event event) generates (Result result);
+
+    /**
+     * Register direct report channel.
+     *
+     * Register a direct channel with supplied shared memory information. Upon
+     * return, the sensor hardware is responsible for resetting the memory
+     * content to initial value (depending on memory format settings).
+     *
+     * @param mem shared memory info data structure.
+     * @return result OK on success; BAD_VALUE if shared memory information is
+     *     not consistent; NO_MEMORY if shared memory cannot be used by sensor
+     *     system; INVALID_OPERATION if functionality is not supported.
+     * @return channelHandle a positive integer used for referencing registered
+     *     direct channel (>0) in configureDirectReport and
+     *     unregisterDirectChannel if result is OK, -1 otherwise.
+     */
+    registerDirectChannel(SharedMemInfo mem)
+               generates (Result result,
+                          int32_t channelHandle);
+
+    /**
+     * Unregister direct report channel.
+     *
+     * Unregister a direct channel previously registered using
+     * registerDirectChannel, and remove all active sensor report configured in
+     * still active sensor report configured in the direct channel.
+     *
+     * @param channelHandle handle of direct channel to be unregistered.
+     * @return result OK if direct report is supported; INVALID_OPERATION
+     *     otherwise.
+     */
+    unregisterDirectChannel(int32_t channelHandle) generates (Result result);
+
+    /**
+     * Configure direct sensor event report in direct channel.
+     *
+     * This function start, modify rate or stop direct report of a sensor in a
+     * certain direct channel.
+     *
+     * @param sensorHandle handle of sensor to be configured. When combined
+     *     with STOP rate, sensorHandle can be -1 to denote all active sensors
+     *     in the direct channel specified by channel Handle.
+     * @param channelHandle handle of direct channel to be configured.
+     * @param rate rate level, see RateLevel enum.
+     * @return result OK on success; BAD_VALUE if parameter is invalid (such as
+     *     rate level is not supported by sensor, channelHandle does not exist,
+     *     etc); INVALID_OPERATION if functionality is not supported.
+     * @return reportToken positive integer to identify multiple sensors of
+     *     the same type in a single direct channel. Ignored if rate is STOP.
+     *     See SharedMemFormat.
+     */
+    configDirectReport(
+            int32_t sensorHandle,
+            int32_t channelHandle,
+            RateLevel rate
+        ) generates (
+            Result result,
+            int32_t reportToken);
+};
diff --git a/sensors/2.0/ISensorsCallback.hal b/sensors/2.0/ISensorsCallback.hal
new file mode 100644
index 0000000..e0bd98f
--- /dev/null
+++ b/sensors/2.0/ISensorsCallback.hal
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors@2.0;
+
+import @1.0::SensorInfo;
+
+interface ISensorsCallback {
+    /**
+     * Notify the framework that new dynamic sensors have been connected.
+     *
+     * If a dynamic sensor was previously connected and has not been
+     * disconnected, then that sensor must not be included in sensorInfos.
+     *
+     * @param sensorInfos vector of SensorInfo for each dynamic sensor that
+     *     was connected.
+     */
+    oneway onDynamicSensorsConnected(vec<SensorInfo> sensorInfos);
+
+    /**
+     * Notify the framework that previously connected dynamic sensors have been
+     * disconnected.
+     *
+     * If a dynamic sensor was previously disconnected and has not been
+     * reconnected, then that sensor must not be included in sensorHandles.
+     *
+     * The HAL must ensure that all sensor events from departing dynamic
+     * sensors have been written to the Event FMQ before calling
+     * onDynamicSensorsDisconnected.
+     *
+     * @param sensorHandles vector of sensor handles for each dynamic sensors
+     *     that was disconnected.
+     */
+    oneway onDynamicSensorsDisconnected(vec<int32_t> sensorHandles);
+};
diff --git a/sensors/2.0/default/Android.bp b/sensors/2.0/default/Android.bp
new file mode 100644
index 0000000..d05634b
--- /dev/null
+++ b/sensors/2.0/default/Android.bp
@@ -0,0 +1,39 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_binary {
+    name: "android.hardware.sensors@2.0-service.mock",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    relative_install_path: "hw",
+    srcs: [
+        "service.cpp",
+        "Sensor.cpp",
+        "Sensors.cpp",
+    ],
+    init_rc: ["android.hardware.sensors@2.0-service.rc"],
+    shared_libs: [
+        "android.hardware.sensors@1.0",
+        "android.hardware.sensors@2.0",
+        "libcutils",
+        "libfmq",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libpower",
+        "libutils",
+    ],
+    vintf_fragments: ["android.hardware.sensors@2.0.xml"],
+}
diff --git a/sensors/2.0/default/OWNERS b/sensors/2.0/default/OWNERS
new file mode 100644
index 0000000..2031d84
--- /dev/null
+++ b/sensors/2.0/default/OWNERS
@@ -0,0 +1,2 @@
+bduddie@google.com
+bstack@google.com
diff --git a/sensors/2.0/default/Sensor.cpp b/sensors/2.0/default/Sensor.cpp
new file mode 100644
index 0000000..c09173f
--- /dev/null
+++ b/sensors/2.0/default/Sensor.cpp
@@ -0,0 +1,373 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Sensor.h"
+
+#include <utils/SystemClock.h>
+
+#include <cmath>
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::hardware::sensors::V1_0::MetaDataEventType;
+using ::android::hardware::sensors::V1_0::SensorFlagBits;
+using ::android::hardware::sensors::V1_0::SensorStatus;
+
+static constexpr float kDefaultMaxDelayUs = 10 * 1000 * 1000;
+
+Sensor::Sensor(ISensorsEventCallback* callback)
+    : mIsEnabled(false),
+      mSamplingPeriodNs(0),
+      mLastSampleTimeNs(0),
+      mCallback(callback),
+      mMode(OperationMode::NORMAL) {
+    mRunThread = std::thread(startThread, this);
+}
+
+Sensor::~Sensor() {
+    std::unique_lock<std::mutex> lock(mRunMutex);
+    mStopThread = true;
+    mIsEnabled = false;
+    mWaitCV.notify_all();
+    lock.release();
+    mRunThread.join();
+}
+
+const SensorInfo& Sensor::getSensorInfo() const {
+    return mSensorInfo;
+}
+
+void Sensor::batch(int32_t samplingPeriodNs) {
+    if (samplingPeriodNs < mSensorInfo.minDelay * 1000) {
+        samplingPeriodNs = mSensorInfo.minDelay * 1000;
+    } else if (samplingPeriodNs > mSensorInfo.maxDelay * 1000) {
+        samplingPeriodNs = mSensorInfo.maxDelay * 1000;
+    }
+
+    if (mSamplingPeriodNs != samplingPeriodNs) {
+        mSamplingPeriodNs = samplingPeriodNs;
+        // Wake up the 'run' thread to check if a new event should be generated now
+        mWaitCV.notify_all();
+    }
+}
+
+void Sensor::activate(bool enable) {
+    if (mIsEnabled != enable) {
+        std::unique_lock<std::mutex> lock(mRunMutex);
+        mIsEnabled = enable;
+        mWaitCV.notify_all();
+    }
+}
+
+Result Sensor::flush() {
+    // Only generate a flush complete event if the sensor is enabled and if the sensor is not a
+    // one-shot sensor.
+    if (!mIsEnabled || (mSensorInfo.flags & static_cast<uint32_t>(SensorFlagBits::ONE_SHOT_MODE))) {
+        return Result::BAD_VALUE;
+    }
+
+    // Note: If a sensor supports batching, write all of the currently batched events for the sensor
+    // to the Event FMQ prior to writing the flush complete event.
+    Event ev;
+    ev.sensorHandle = mSensorInfo.sensorHandle;
+    ev.sensorType = SensorType::META_DATA;
+    ev.u.meta.what = MetaDataEventType::META_DATA_FLUSH_COMPLETE;
+    std::vector<Event> evs{ev};
+    mCallback->postEvents(evs, isWakeUpSensor());
+
+    return Result::OK;
+}
+
+void Sensor::startThread(Sensor* sensor) {
+    sensor->run();
+}
+
+void Sensor::run() {
+    std::unique_lock<std::mutex> runLock(mRunMutex);
+    constexpr int64_t kNanosecondsInSeconds = 1000 * 1000 * 1000;
+
+    while (!mStopThread) {
+        if (!mIsEnabled || mMode == OperationMode::DATA_INJECTION) {
+            mWaitCV.wait(runLock, [&] {
+                return ((mIsEnabled && mMode == OperationMode::NORMAL) || mStopThread);
+            });
+        } else {
+            timespec curTime;
+            clock_gettime(CLOCK_REALTIME, &curTime);
+            int64_t now = (curTime.tv_sec * kNanosecondsInSeconds) + curTime.tv_nsec;
+            int64_t nextSampleTime = mLastSampleTimeNs + mSamplingPeriodNs;
+
+            if (now >= nextSampleTime) {
+                mLastSampleTimeNs = now;
+                nextSampleTime = mLastSampleTimeNs + mSamplingPeriodNs;
+                mCallback->postEvents(readEvents(), isWakeUpSensor());
+            }
+
+            mWaitCV.wait_for(runLock, std::chrono::nanoseconds(nextSampleTime - now));
+        }
+    }
+}
+
+bool Sensor::isWakeUpSensor() {
+    return mSensorInfo.flags & static_cast<uint32_t>(SensorFlagBits::WAKE_UP);
+}
+
+std::vector<Event> Sensor::readEvents() {
+    std::vector<Event> events;
+    Event event;
+    event.sensorHandle = mSensorInfo.sensorHandle;
+    event.sensorType = mSensorInfo.type;
+    event.timestamp = ::android::elapsedRealtimeNano();
+    event.u.vec3.x = 0;
+    event.u.vec3.y = 0;
+    event.u.vec3.z = 0;
+    event.u.vec3.status = SensorStatus::ACCURACY_HIGH;
+    events.push_back(event);
+    return events;
+}
+
+void Sensor::setOperationMode(OperationMode mode) {
+    if (mMode != mode) {
+        std::unique_lock<std::mutex> lock(mRunMutex);
+        mMode = mode;
+        mWaitCV.notify_all();
+    }
+}
+
+bool Sensor::supportsDataInjection() const {
+    return mSensorInfo.flags & static_cast<uint32_t>(SensorFlagBits::DATA_INJECTION);
+}
+
+Result Sensor::injectEvent(const Event& event) {
+    Result result = Result::OK;
+    if (event.sensorType == SensorType::ADDITIONAL_INFO) {
+        // When in OperationMode::NORMAL, SensorType::ADDITIONAL_INFO is used to push operation
+        // environment data into the device.
+    } else if (!supportsDataInjection()) {
+        result = Result::INVALID_OPERATION;
+    } else if (mMode == OperationMode::DATA_INJECTION) {
+        mCallback->postEvents(std::vector<Event>{event}, isWakeUpSensor());
+    } else {
+        result = Result::BAD_VALUE;
+    }
+    return result;
+}
+
+OnChangeSensor::OnChangeSensor(ISensorsEventCallback* callback)
+    : Sensor(callback), mPreviousEventSet(false) {}
+
+void OnChangeSensor::activate(bool enable) {
+    Sensor::activate(enable);
+    if (!enable) {
+        mPreviousEventSet = false;
+    }
+}
+
+std::vector<Event> OnChangeSensor::readEvents() {
+    std::vector<Event> events = Sensor::readEvents();
+    std::vector<Event> outputEvents;
+
+    for (auto iter = events.begin(); iter != events.end(); ++iter) {
+        Event ev = *iter;
+        if (ev.u.vec3 != mPreviousEvent.u.vec3 || !mPreviousEventSet) {
+            outputEvents.push_back(ev);
+            mPreviousEvent = ev;
+            mPreviousEventSet = true;
+        }
+    }
+    return outputEvents;
+}
+
+AccelSensor::AccelSensor(int32_t sensorHandle, ISensorsEventCallback* callback) : Sensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Accel Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::ACCELEROMETER;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 78.4f;  // +/- 8g
+    mSensorInfo.resolution = 1.52e-5;
+    mSensorInfo.power = 0.001f;          // mA
+    mSensorInfo.minDelay = 20 * 1000;    // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::DATA_INJECTION);
+};
+
+PressureSensor::PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+    : Sensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Pressure Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::PRESSURE;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 1100.0f;   // hPa
+    mSensorInfo.resolution = 0.005f;  // hPa
+    mSensorInfo.power = 0.001f;       // mA
+    mSensorInfo.minDelay = 100 * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = 0;
+};
+
+MagnetometerSensor::MagnetometerSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+    : Sensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Magnetic Field Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::MAGNETIC_FIELD;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 1300.0f;
+    mSensorInfo.resolution = 0.01f;
+    mSensorInfo.power = 0.001f;       // mA
+    mSensorInfo.minDelay = 20 * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = 0;
+};
+
+LightSensor::LightSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+    : OnChangeSensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Light Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::LIGHT;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 43000.0f;
+    mSensorInfo.resolution = 10.0f;
+    mSensorInfo.power = 0.001f;           // mA
+    mSensorInfo.minDelay = 200 * 1000;    // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+};
+
+ProximitySensor::ProximitySensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+    : OnChangeSensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Proximity Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::PROXIMITY;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 5.0f;
+    mSensorInfo.resolution = 1.0f;
+    mSensorInfo.power = 0.012f;  // mA
+    mSensorInfo.minDelay = 200 * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags =
+            static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE | SensorFlagBits::WAKE_UP);
+};
+
+GyroSensor::GyroSensor(int32_t sensorHandle, ISensorsEventCallback* callback) : Sensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Gyro Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::GYROSCOPE;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 1000.0f * M_PI / 180.0f;
+    mSensorInfo.resolution = 1000.0f * M_PI / (180.0f * 32768.0f);
+    mSensorInfo.power = 0.001f;
+    mSensorInfo.minDelay = 2.5f * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = 0;
+};
+
+AmbientTempSensor::AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+    : OnChangeSensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Ambient Temp Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::AMBIENT_TEMPERATURE;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 80.0f;
+    mSensorInfo.resolution = 0.01f;
+    mSensorInfo.power = 0.001f;
+    mSensorInfo.minDelay = 40 * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+};
+
+DeviceTempSensor::DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+    : OnChangeSensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Device Temp Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::TEMPERATURE;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 80.0f;
+    mSensorInfo.resolution = 0.01f;
+    mSensorInfo.power = 0.001f;
+    mSensorInfo.minDelay = 40 * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+}
+
+RelativeHumiditySensor::RelativeHumiditySensor(int32_t sensorHandle,
+                                               ISensorsEventCallback* callback)
+    : OnChangeSensor(callback) {
+    mSensorInfo.sensorHandle = sensorHandle;
+    mSensorInfo.name = "Relative Humidity Sensor";
+    mSensorInfo.vendor = "Vendor String";
+    mSensorInfo.version = 1;
+    mSensorInfo.type = SensorType::RELATIVE_HUMIDITY;
+    mSensorInfo.typeAsString = "";
+    mSensorInfo.maxRange = 100.0f;
+    mSensorInfo.resolution = 0.1f;
+    mSensorInfo.power = 0.001f;
+    mSensorInfo.minDelay = 40 * 1000;  // microseconds
+    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+    mSensorInfo.fifoReservedEventCount = 0;
+    mSensorInfo.fifoMaxEventCount = 0;
+    mSensorInfo.requiredPermission = "";
+    mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
diff --git a/sensors/2.0/default/Sensor.h b/sensors/2.0/default/Sensor.h
new file mode 100644
index 0000000..61900fa
--- /dev/null
+++ b/sensors/2.0/default/Sensor.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SENSORS_V2_0_SENSOR_H
+#define ANDROID_HARDWARE_SENSORS_V2_0_SENSOR_H
+
+#include <android/hardware/sensors/1.0/types.h>
+
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+using ::android::hardware::sensors::V1_0::Event;
+using ::android::hardware::sensors::V1_0::OperationMode;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SensorInfo;
+using ::android::hardware::sensors::V1_0::SensorType;
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace implementation {
+
+class ISensorsEventCallback {
+   public:
+    virtual ~ISensorsEventCallback(){};
+    virtual void postEvents(const std::vector<Event>& events, bool wakeup) = 0;
+};
+
+class Sensor {
+   public:
+    Sensor(ISensorsEventCallback* callback);
+    virtual ~Sensor();
+
+    const SensorInfo& getSensorInfo() const;
+    void batch(int32_t samplingPeriodNs);
+    virtual void activate(bool enable);
+    Result flush();
+
+    void setOperationMode(OperationMode mode);
+    bool supportsDataInjection() const;
+    Result injectEvent(const Event& event);
+
+   protected:
+    void run();
+    virtual std::vector<Event> readEvents();
+    static void startThread(Sensor* sensor);
+
+    bool isWakeUpSensor();
+
+    bool mIsEnabled;
+    int64_t mSamplingPeriodNs;
+    int64_t mLastSampleTimeNs;
+    SensorInfo mSensorInfo;
+
+    std::atomic_bool mStopThread;
+    std::condition_variable mWaitCV;
+    std::mutex mRunMutex;
+    std::thread mRunThread;
+
+    ISensorsEventCallback* mCallback;
+
+    OperationMode mMode;
+};
+
+class OnChangeSensor : public Sensor {
+   public:
+    OnChangeSensor(ISensorsEventCallback* callback);
+
+    virtual void activate(bool enable) override;
+
+   protected:
+    virtual std::vector<Event> readEvents() override;
+
+   protected:
+    Event mPreviousEvent;
+    bool mPreviousEventSet;
+};
+
+class AccelSensor : public Sensor {
+   public:
+    AccelSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class GyroSensor : public Sensor {
+   public:
+    GyroSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class AmbientTempSensor : public OnChangeSensor {
+   public:
+    AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class DeviceTempSensor : public OnChangeSensor {
+   public:
+    DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class PressureSensor : public Sensor {
+   public:
+    PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class MagnetometerSensor : public Sensor {
+   public:
+    MagnetometerSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class LightSensor : public OnChangeSensor {
+   public:
+    LightSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class ProximitySensor : public OnChangeSensor {
+   public:
+    ProximitySensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class RelativeHumiditySensor : public OnChangeSensor {
+   public:
+    RelativeHumiditySensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_SENSORS_V2_0_SENSOR_H
diff --git a/sensors/2.0/default/Sensors.cpp b/sensors/2.0/default/Sensors.cpp
new file mode 100644
index 0000000..23dd26b
--- /dev/null
+++ b/sensors/2.0/default/Sensors.cpp
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Sensors.h"
+
+#include <android/hardware/sensors/2.0/types.h>
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::hardware::sensors::V1_0::Event;
+using ::android::hardware::sensors::V1_0::OperationMode;
+using ::android::hardware::sensors::V1_0::RateLevel;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SharedMemInfo;
+using ::android::hardware::sensors::V2_0::SensorTimeout;
+using ::android::hardware::sensors::V2_0::WakeLockQueueFlagBits;
+
+constexpr const char* kWakeLockName = "SensorsHAL_WAKEUP";
+
+Sensors::Sensors()
+    : mEventQueueFlag(nullptr),
+      mNextHandle(1),
+      mOutstandingWakeUpEvents(0),
+      mReadWakeLockQueueRun(false),
+      mAutoReleaseWakeLockTime(0),
+      mHasWakeLock(false) {
+    AddSensor<AccelSensor>();
+    AddSensor<GyroSensor>();
+    AddSensor<AmbientTempSensor>();
+    AddSensor<DeviceTempSensor>();
+    AddSensor<PressureSensor>();
+    AddSensor<MagnetometerSensor>();
+    AddSensor<LightSensor>();
+    AddSensor<ProximitySensor>();
+    AddSensor<RelativeHumiditySensor>();
+}
+
+Sensors::~Sensors() {
+    deleteEventFlag();
+    mReadWakeLockQueueRun = false;
+    mWakeLockThread.join();
+}
+
+// Methods from ::android::hardware::sensors::V2_0::ISensors follow.
+Return<void> Sensors::getSensorsList(getSensorsList_cb _hidl_cb) {
+    std::vector<SensorInfo> sensors;
+    for (const auto& sensor : mSensors) {
+        sensors.push_back(sensor.second->getSensorInfo());
+    }
+
+    // Call the HIDL callback with the SensorInfo
+    _hidl_cb(sensors);
+
+    return Void();
+}
+
+Return<Result> Sensors::setOperationMode(OperationMode mode) {
+    for (auto sensor : mSensors) {
+        sensor.second->setOperationMode(mode);
+    }
+    return Result::OK;
+}
+
+Return<Result> Sensors::activate(int32_t sensorHandle, bool enabled) {
+    auto sensor = mSensors.find(sensorHandle);
+    if (sensor != mSensors.end()) {
+        sensor->second->activate(enabled);
+        return Result::OK;
+    }
+    return Result::BAD_VALUE;
+}
+
+Return<Result> Sensors::initialize(
+    const ::android::hardware::MQDescriptorSync<Event>& eventQueueDescriptor,
+    const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
+    const sp<ISensorsCallback>& sensorsCallback) {
+    Result result = Result::OK;
+
+    // Ensure that all sensors are disabled
+    for (auto sensor : mSensors) {
+        sensor.second->activate(false /* enable */);
+    }
+
+    // Stop the Wake Lock thread if it is currently running
+    if (mReadWakeLockQueueRun.load()) {
+        mReadWakeLockQueueRun = false;
+        mWakeLockThread.join();
+    }
+
+    // Save a reference to the callback
+    mCallback = sensorsCallback;
+
+    // Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
+    mEventQueue =
+        std::make_unique<EventMessageQueue>(eventQueueDescriptor, true /* resetPointers */);
+
+    // Ensure that any existing EventFlag is properly deleted
+    deleteEventFlag();
+
+    // Create the EventFlag that is used to signal to the framework that sensor events have been
+    // written to the Event FMQ
+    if (EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag) != OK) {
+        result = Result::BAD_VALUE;
+    }
+
+    // Create the Wake Lock FMQ that is used by the framework to communicate whenever WAKE_UP
+    // events have been successfully read and handled by the framework.
+    mWakeLockQueue =
+        std::make_unique<WakeLockMessageQueue>(wakeLockDescriptor, true /* resetPointers */);
+
+    if (!mCallback || !mEventQueue || !mWakeLockQueue || mEventQueueFlag == nullptr) {
+        result = Result::BAD_VALUE;
+    }
+
+    // Start the thread to read events from the Wake Lock FMQ
+    mReadWakeLockQueueRun = true;
+    mWakeLockThread = std::thread(startReadWakeLockThread, this);
+
+    return result;
+}
+
+Return<Result> Sensors::batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                              int64_t /* maxReportLatencyNs */) {
+    auto sensor = mSensors.find(sensorHandle);
+    if (sensor != mSensors.end()) {
+        sensor->second->batch(samplingPeriodNs);
+        return Result::OK;
+    }
+    return Result::BAD_VALUE;
+}
+
+Return<Result> Sensors::flush(int32_t sensorHandle) {
+    auto sensor = mSensors.find(sensorHandle);
+    if (sensor != mSensors.end()) {
+        return sensor->second->flush();
+    }
+    return Result::BAD_VALUE;
+}
+
+Return<Result> Sensors::injectSensorData(const Event& event) {
+    auto sensor = mSensors.find(event.sensorHandle);
+    if (sensor != mSensors.end()) {
+        return sensor->second->injectEvent(event);
+    }
+
+    return Result::BAD_VALUE;
+}
+
+Return<void> Sensors::registerDirectChannel(const SharedMemInfo& /* mem */,
+                                            registerDirectChannel_cb _hidl_cb) {
+    _hidl_cb(Result::INVALID_OPERATION, -1 /* channelHandle */);
+    return Return<void>();
+}
+
+Return<Result> Sensors::unregisterDirectChannel(int32_t /* channelHandle */) {
+    return Result::INVALID_OPERATION;
+}
+
+Return<void> Sensors::configDirectReport(int32_t /* sensorHandle */, int32_t /* channelHandle */,
+                                         RateLevel /* rate */, configDirectReport_cb _hidl_cb) {
+    _hidl_cb(Result::INVALID_OPERATION, 0 /* reportToken */);
+    return Return<void>();
+}
+
+void Sensors::postEvents(const std::vector<Event>& events, bool wakeup) {
+    std::lock_guard<std::mutex> lock(mWriteLock);
+    if (mEventQueue->write(events.data(), events.size())) {
+        mEventQueueFlag->wake(static_cast<uint32_t>(EventQueueFlagBits::READ_AND_PROCESS));
+
+        if (wakeup) {
+            // Keep track of the number of outstanding WAKE_UP events in order to properly hold
+            // a wake lock until the framework has secured a wake lock
+            updateWakeLock(events.size(), 0 /* eventsHandled */);
+        }
+    }
+}
+
+void Sensors::updateWakeLock(int32_t eventsWritten, int32_t eventsHandled) {
+    std::lock_guard<std::mutex> lock(mWakeLockLock);
+    int32_t newVal = mOutstandingWakeUpEvents + eventsWritten - eventsHandled;
+    if (newVal < 0) {
+        mOutstandingWakeUpEvents = 0;
+    } else {
+        mOutstandingWakeUpEvents = newVal;
+    }
+
+    if (eventsWritten > 0) {
+        // Update the time at which the last WAKE_UP event was sent
+        mAutoReleaseWakeLockTime = ::android::uptimeMillis() +
+                                   static_cast<uint32_t>(SensorTimeout::WAKE_LOCK_SECONDS) * 1000;
+    }
+
+    if (!mHasWakeLock && mOutstandingWakeUpEvents > 0 &&
+        acquire_wake_lock(PARTIAL_WAKE_LOCK, kWakeLockName) == 0) {
+        mHasWakeLock = true;
+    } else if (mHasWakeLock) {
+        // Check if the wake lock should be released automatically if
+        // SensorTimeout::WAKE_LOCK_SECONDS has elapsed since the last WAKE_UP event was written to
+        // the Wake Lock FMQ.
+        if (::android::uptimeMillis() > mAutoReleaseWakeLockTime) {
+            ALOGD("No events read from wake lock FMQ for %d seconds, auto releasing wake lock",
+                  SensorTimeout::WAKE_LOCK_SECONDS);
+            mOutstandingWakeUpEvents = 0;
+        }
+
+        if (mOutstandingWakeUpEvents == 0 && release_wake_lock(kWakeLockName) == 0) {
+            mHasWakeLock = false;
+        }
+    }
+}
+
+void Sensors::readWakeLockFMQ() {
+    while (mReadWakeLockQueueRun.load()) {
+        constexpr int64_t kReadTimeoutNs = 500 * 1000 * 1000;  // 500 ms
+        uint32_t eventsHandled = 0;
+
+        // Read events from the Wake Lock FMQ. Timeout after a reasonable amount of time to ensure
+        // that any held wake lock is able to be released if it is held for too long.
+        mWakeLockQueue->readBlocking(&eventsHandled, 1 /* count */, 0 /* readNotification */,
+                                     static_cast<uint32_t>(WakeLockQueueFlagBits::DATA_WRITTEN),
+                                     kReadTimeoutNs);
+        updateWakeLock(0 /* eventsWritten */, eventsHandled);
+    }
+}
+
+void Sensors::startReadWakeLockThread(Sensors* sensors) {
+    sensors->readWakeLockFMQ();
+}
+
+void Sensors::deleteEventFlag() {
+    status_t status = EventFlag::deleteEventFlag(&mEventQueueFlag);
+    if (status != OK) {
+        ALOGI("Failed to delete event flag: %d", status);
+    }
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
diff --git a/sensors/2.0/default/Sensors.h b/sensors/2.0/default/Sensors.h
new file mode 100644
index 0000000..d06dd78
--- /dev/null
+++ b/sensors/2.0/default/Sensors.h
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SENSORS_V2_0_SENSORS_H
+#define ANDROID_HARDWARE_SENSORS_V2_0_SENSORS_H
+
+#include "Sensor.h"
+
+#include <android/hardware/sensors/2.0/ISensors.h>
+#include <fmq/MessageQueue.h>
+#include <hardware_legacy/power.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <atomic>
+#include <memory>
+#include <thread>
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::EventFlag;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::MQDescriptor;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+struct Sensors : public ISensors, public ISensorsEventCallback {
+    using Event = ::android::hardware::sensors::V1_0::Event;
+    using OperationMode = ::android::hardware::sensors::V1_0::OperationMode;
+    using RateLevel = ::android::hardware::sensors::V1_0::RateLevel;
+    using Result = ::android::hardware::sensors::V1_0::Result;
+    using SharedMemInfo = ::android::hardware::sensors::V1_0::SharedMemInfo;
+
+    Sensors();
+    virtual ~Sensors();
+
+    // Methods from ::android::hardware::sensors::V2_0::ISensors follow.
+    Return<void> getSensorsList(getSensorsList_cb _hidl_cb) override;
+
+    Return<Result> setOperationMode(OperationMode mode) override;
+
+    Return<Result> activate(int32_t sensorHandle, bool enabled) override;
+
+    Return<Result> initialize(
+        const ::android::hardware::MQDescriptorSync<Event>& eventQueueDescriptor,
+        const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
+        const sp<ISensorsCallback>& sensorsCallback) override;
+
+    Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                         int64_t maxReportLatencyNs) override;
+
+    Return<Result> flush(int32_t sensorHandle) override;
+
+    Return<Result> injectSensorData(const Event& event) override;
+
+    Return<void> registerDirectChannel(const SharedMemInfo& mem,
+                                       registerDirectChannel_cb _hidl_cb) override;
+
+    Return<Result> unregisterDirectChannel(int32_t channelHandle) override;
+
+    Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
+                                    configDirectReport_cb _hidl_cb) override;
+
+    void postEvents(const std::vector<Event>& events, bool wakeup) override;
+
+   private:
+    /**
+     * Add a new sensor
+     */
+    template <class SensorType>
+    void AddSensor() {
+        std::shared_ptr<SensorType> sensor =
+                std::make_shared<SensorType>(mNextHandle++ /* sensorHandle */, this /* callback */);
+        mSensors[sensor->getSensorInfo().sensorHandle] = sensor;
+    }
+
+    /**
+     * Utility function to delete the Event Flag
+     */
+    void deleteEventFlag();
+
+    /**
+     * Function to read the Wake Lock FMQ and release the wake lock when appropriate
+     */
+    void readWakeLockFMQ();
+
+    static void startReadWakeLockThread(Sensors* sensors);
+
+    /**
+     * Responsible for acquiring and releasing a wake lock when there are unhandled WAKE_UP events
+     */
+    void updateWakeLock(int32_t eventsWritten, int32_t eventsHandled);
+
+    using EventMessageQueue = MessageQueue<Event, kSynchronizedReadWrite>;
+    using WakeLockMessageQueue = MessageQueue<uint32_t, kSynchronizedReadWrite>;
+
+    /**
+     * The Event FMQ where sensor events are written
+     */
+    std::unique_ptr<EventMessageQueue> mEventQueue;
+
+    /**
+     * The Wake Lock FMQ that is read to determine when the framework has handled WAKE_UP events
+     */
+    std::unique_ptr<WakeLockMessageQueue> mWakeLockQueue;
+
+    /**
+     * Event Flag to signal to the framework when sensor events are available to be read
+     */
+    EventFlag* mEventQueueFlag;
+
+    /**
+     * Callback for asynchronous events, such as dynamic sensor connections.
+     */
+    sp<ISensorsCallback> mCallback;
+
+    /**
+     * A map of the available sensors
+     */
+    std::map<int32_t, std::shared_ptr<Sensor>> mSensors;
+
+    /**
+     * The next available sensor handle
+     */
+    int32_t mNextHandle;
+
+    /**
+     * Lock to protect writes to the FMQs
+     */
+    std::mutex mWriteLock;
+
+    /**
+     * Lock to protect acquiring and releasing the wake lock
+     */
+    std::mutex mWakeLockLock;
+
+    /**
+     * Track the number of WAKE_UP events that have not been handled by the framework
+     */
+    uint32_t mOutstandingWakeUpEvents;
+
+    /**
+     * A thread to read the Wake Lock FMQ
+     */
+    std::thread mWakeLockThread;
+
+    /**
+     * Flag to indicate that the Wake Lock Thread should continue to run
+     */
+    std::atomic_bool mReadWakeLockQueueRun;
+
+    /**
+     * Track the time when the wake lock should automatically be released
+     */
+    int64_t mAutoReleaseWakeLockTime;
+
+    /**
+     * Flag to indicate if a wake lock has been acquired
+     */
+    bool mHasWakeLock;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_SENSORS_V2_0_SENSORS_H
diff --git a/sensors/2.0/default/android.hardware.sensors@2.0-service.rc b/sensors/2.0/default/android.hardware.sensors@2.0-service.rc
new file mode 100644
index 0000000..1fee4f2
--- /dev/null
+++ b/sensors/2.0/default/android.hardware.sensors@2.0-service.rc
@@ -0,0 +1,5 @@
+service vendor.sensors-hal-2-0-mock /vendor/bin/hw/android.hardware.sensors@2.0-service.mock
+    class hal
+    user system
+    group system
+    rlimit rtprio 10 10
diff --git a/sensors/2.0/default/android.hardware.sensors@2.0.xml b/sensors/2.0/default/android.hardware.sensors@2.0.xml
new file mode 100644
index 0000000..1acc8e6
--- /dev/null
+++ b/sensors/2.0/default/android.hardware.sensors@2.0.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.sensors</name>
+        <transport>hwbinder</transport>
+        <version>2.0</version>
+        <interface>
+            <name>ISensors</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/sensors/2.0/default/service.cpp b/sensors/2.0/default/service.cpp
new file mode 100644
index 0000000..5c13e33
--- /dev/null
+++ b/sensors/2.0/default/service.cpp
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.sensors@2.0-service"
+
+#include <android/hardware/sensors/2.0/ISensors.h>
+#include <hidl/HidlTransportSupport.h>
+#include <log/log.h>
+#include <utils/StrongPointer.h>
+#include "Sensors.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::sensors::V2_0::ISensors;
+using android::hardware::sensors::V2_0::implementation::Sensors;
+
+int main(int /* argc */, char** /* argv */) {
+    configureRpcThreadpool(1, true);
+
+    android::sp<ISensors> sensors = new Sensors();
+    if (sensors->registerAsService() != ::android::OK) {
+        ALOGE("Failed to register Sensors HAL instance");
+        return -1;
+    }
+
+    joinRpcThreadpool();
+    return 1;  // joinRpcThreadpool shouldn't exit
+}
diff --git a/sensors/2.0/types.hal b/sensors/2.0/types.hal
new file mode 100644
index 0000000..4457544
--- /dev/null
+++ b/sensors/2.0/types.hal
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors@2.0;
+
+enum SensorTimeout : int32_t {
+    /**
+     * The maximum number of seconds to wait for a message on the Wake Lock FMQ
+     * before automatically releasing any wake_lock held for a WAKE_UP event.
+     */
+    WAKE_LOCK_SECONDS = 1,
+};
+
+enum EventQueueFlagBits : uint32_t {
+    /**
+     * Used to notify the Event FMQ that events should be read and processed.
+     */
+    READ_AND_PROCESS = 1 << 0,
+
+    /**
+     * Used by the framework to signal to the HAL when events have been
+     * successfully read from the Event FMQ.
+     *
+     * If the MessageQueue::writeBlocking function is being used to write sensor
+     * events to the Event FMQ, then the readNotification parameter must be set
+     * to EVENTS_READ.
+     */
+     EVENTS_READ = 1 << 1,
+};
+
+enum WakeLockQueueFlagBits : uint32_t {
+    /**
+     * Used to notify the HAL that the framework has written data to the Wake
+     * Lock FMQ.
+     */
+     DATA_WRITTEN = 1 << 0,
+};
diff --git a/sensors/2.0/vts/functional/Android.bp b/sensors/2.0/vts/functional/Android.bp
new file mode 100644
index 0000000..8e8413c
--- /dev/null
+++ b/sensors/2.0/vts/functional/Android.bp
@@ -0,0 +1,33 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalSensorsV2_0TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "SensorsHidlEnvironmentV2_0.cpp",
+        "VtsHalSensorsV2_0TargetTest.cpp"
+    ],
+    static_libs: [
+        "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hardware.sensors@1.0",
+        "android.hardware.sensors@2.0",
+        "libfmq",
+        "VtsHalSensorsTargetTestUtils",
+    ],
+}
+
diff --git a/sensors/2.0/vts/functional/OWNERS b/sensors/2.0/vts/functional/OWNERS
new file mode 100644
index 0000000..759d87b
--- /dev/null
+++ b/sensors/2.0/vts/functional/OWNERS
@@ -0,0 +1,7 @@
+# Sensors team
+bduddie@google.com
+bstack@google.com
+
+# VTS team
+trong@google.com
+yim@google.com
diff --git a/sensors/2.0/vts/functional/SensorsHidlEnvironmentV2_0.cpp b/sensors/2.0/vts/functional/SensorsHidlEnvironmentV2_0.cpp
new file mode 100644
index 0000000..be7415b
--- /dev/null
+++ b/sensors/2.0/vts/functional/SensorsHidlEnvironmentV2_0.cpp
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SensorsHidlEnvironmentV2_0.h"
+
+#include <android/hardware/sensors/2.0/types.h>
+#include <log/log.h>
+
+#include <algorithm>
+#include <vector>
+
+using ::android::hardware::EventFlag;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SensorInfo;
+using ::android::hardware::sensors::V2_0::EventQueueFlagBits;
+using ::android::hardware::sensors::V2_0::ISensors;
+using ::android::hardware::sensors::V2_0::ISensorsCallback;
+
+template <typename EnumType>
+constexpr typename std::underlying_type<EnumType>::type asBaseType(EnumType value) {
+    return static_cast<typename std::underlying_type<EnumType>::type>(value);
+}
+
+constexpr size_t SensorsHidlEnvironmentV2_0::MAX_RECEIVE_BUFFER_EVENT_COUNT;
+
+struct SensorsCallback : ISensorsCallback {
+    Return<void> onDynamicSensorsConnected(const hidl_vec<SensorInfo>& /* sensorInfos */) {
+        return Return<void>();
+    }
+
+    Return<void> onDynamicSensorsDisconnected(const hidl_vec<int32_t>& /* sensorHandles */) {
+        return Return<void>();
+    }
+};
+
+bool SensorsHidlEnvironmentV2_0::resetHal() {
+    bool succeed = false;
+    do {
+        mSensors = ISensors::getService(
+            SensorsHidlEnvironmentV2_0::Instance()->getServiceName<ISensors>());
+        if (mSensors == nullptr) {
+            break;
+        }
+
+        // Initialize FMQs
+        mEventQueue = std::make_unique<EventMessageQueue>(MAX_RECEIVE_BUFFER_EVENT_COUNT,
+                                                          true /* configureEventFlagWord */);
+
+        mWakeLockQueue = std::make_unique<WakeLockQueue>(MAX_RECEIVE_BUFFER_EVENT_COUNT,
+                                                         true /* configureEventFlagWord */);
+
+        if (mEventQueue == nullptr || mWakeLockQueue == nullptr) {
+            break;
+        }
+
+        EventFlag::deleteEventFlag(&mEventQueueFlag);
+        EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag);
+        if (mEventQueueFlag == nullptr) {
+            break;
+        }
+
+        mSensors->initialize(*mEventQueue->getDesc(), *mWakeLockQueue->getDesc(),
+                             new SensorsCallback());
+
+        std::vector<SensorInfo> sensorList;
+        if (!mSensors->getSensorsList([&](const hidl_vec<SensorInfo>& list) { sensorList = list; })
+                 .isOk()) {
+            break;
+        }
+
+        // stop each sensor individually
+        bool ok = true;
+        for (const auto& i : sensorList) {
+            if (!mSensors->activate(i.sensorHandle, false).isOk()) {
+                ok = false;
+                break;
+            }
+        }
+        if (!ok) {
+            break;
+        }
+
+        // mark it done
+        succeed = true;
+    } while (0);
+
+    if (!succeed) {
+        mSensors = nullptr;
+    }
+
+    return succeed;
+}
+
+void SensorsHidlEnvironmentV2_0::HidlTearDown() {
+    mStopThread = true;
+
+    // Wake up the event queue so the poll thread can exit
+    mEventQueueFlag->wake(asBaseType(EventQueueFlagBits::READ_AND_PROCESS));
+    mPollThread.join();
+
+    EventFlag::deleteEventFlag(&mEventQueueFlag);
+}
+
+void SensorsHidlEnvironmentV2_0::startPollingThread() {
+    mStopThread = false;
+    mPollThread = std::thread(pollingThread, this);
+    mEvents.reserve(MAX_RECEIVE_BUFFER_EVENT_COUNT);
+}
+
+void SensorsHidlEnvironmentV2_0::readEvents() {
+    size_t availableEvents = mEventQueue->availableToRead();
+
+    if (availableEvents == 0) {
+        uint32_t eventFlagState = 0;
+
+        mEventQueueFlag->wait(asBaseType(EventQueueFlagBits::READ_AND_PROCESS), &eventFlagState);
+        availableEvents = mEventQueue->availableToRead();
+    }
+
+    size_t eventsToRead = std::min(availableEvents, mEventBuffer.size());
+    if (eventsToRead > 0) {
+        if (mEventQueue->read(mEventBuffer.data(), eventsToRead)) {
+            for (size_t i = 0; i < eventsToRead; i++) {
+                addEvent(mEventBuffer[i]);
+            }
+        }
+    }
+}
+
+void SensorsHidlEnvironmentV2_0::pollingThread(SensorsHidlEnvironmentV2_0* env) {
+    ALOGD("polling thread start");
+
+    while (!env->mStopThread.load()) {
+        env->readEvents();
+    }
+
+    ALOGD("polling thread end");
+}
diff --git a/sensors/2.0/vts/functional/SensorsHidlEnvironmentV2_0.h b/sensors/2.0/vts/functional/SensorsHidlEnvironmentV2_0.h
new file mode 100644
index 0000000..5e54530
--- /dev/null
+++ b/sensors/2.0/vts/functional/SensorsHidlEnvironmentV2_0.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_HIDL_ENVIRONMENT_V2_0_H
+#define ANDROID_SENSORS_HIDL_ENVIRONMENT_V2_0_H
+
+#include "sensors-vts-utils/SensorsHidlEnvironmentBase.h"
+
+#include <android/hardware/sensors/1.0/types.h>
+#include <android/hardware/sensors/2.0/ISensors.h>
+#include <fmq/MessageQueue.h>
+#include <utils/StrongPointer.h>
+
+#include <array>
+#include <atomic>
+#include <memory>
+
+using ::android::sp;
+using ::android::hardware::MessageQueue;
+
+class SensorsHidlTest;
+class SensorsHidlEnvironmentV2_0 : public SensorsHidlEnvironmentBase {
+   public:
+    using Event = ::android::hardware::sensors::V1_0::Event;
+    // get the test environment singleton
+    static SensorsHidlEnvironmentV2_0* Instance() {
+        static SensorsHidlEnvironmentV2_0* instance = new SensorsHidlEnvironmentV2_0();
+        return instance;
+    }
+
+    virtual void registerTestServices() override {
+        registerTestService<android::hardware::sensors::V2_0::ISensors>();
+    }
+
+    virtual void HidlTearDown() override;
+
+   protected:
+    friend SensorsHidlTest;
+
+    SensorsHidlEnvironmentV2_0() : mEventQueueFlag(nullptr) {}
+
+    /**
+     * Resets the HAL with new FMQs and a new Event Flag
+     *
+     * @return bool true if successful, false otherwise
+     */
+    bool resetHal() override;
+
+    /**
+     * Starts the polling thread that reads sensor events from the Event FMQ
+     */
+    void startPollingThread() override;
+
+    /**
+     * Thread responsible for calling functions to read Event FMQ
+     *
+     * @param env SensorEnvironment to being polling for events on
+     */
+    static void pollingThread(SensorsHidlEnvironmentV2_0* env);
+
+    /**
+     * Reads and saves sensor events from the Event FMQ
+     */
+    void readEvents();
+
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(SensorsHidlEnvironmentV2_0);
+
+    /**
+     * Pointer to the Sensors HAL Interface that allows the test to call HAL functions.
+     */
+    sp<android::hardware::sensors::V2_0::ISensors> mSensors;
+
+    /**
+     * Type used to simplify the creation of the Event FMQ
+     */
+    typedef MessageQueue<Event, ::android::hardware::kSynchronizedReadWrite> EventMessageQueue;
+
+    /**
+     * Type used to simplify the creation of the Wake Lock FMQ
+     */
+    typedef MessageQueue<uint32_t, ::android::hardware::kSynchronizedReadWrite> WakeLockQueue;
+
+    /**
+     * The Event FMQ where the test framework is able to read sensor events that the Sensors HAL
+     * has written.
+     */
+    std::unique_ptr<EventMessageQueue> mEventQueue;
+
+    /**
+     * The Wake Lock FMQ is used by the test to notify the Sensors HAL whenever it has processed
+     * WAKE_UP sensor events.
+     */
+    std::unique_ptr<WakeLockQueue> mWakeLockQueue;
+
+    /**
+     * The Event Queue Flag notifies the test framework when sensor events have been written to the
+     * Event FMQ by the Sensors HAL.
+     */
+    ::android::hardware::EventFlag* mEventQueueFlag;
+
+    /**
+     * The maximum number of sensor events that can be read from the Event FMQ at one time.
+     */
+    static constexpr size_t MAX_RECEIVE_BUFFER_EVENT_COUNT = 128;
+
+    /**
+     * An array that is used to store sensor events read from the Event FMQ
+     */
+    std::array<Event, MAX_RECEIVE_BUFFER_EVENT_COUNT> mEventBuffer;
+};
+
+#endif  // ANDROID_SENSORS_HIDL_ENVIRONMENT_V2_0_H
diff --git a/sensors/2.0/vts/functional/VtsHalSensorsV2_0TargetTest.cpp b/sensors/2.0/vts/functional/VtsHalSensorsV2_0TargetTest.cpp
new file mode 100644
index 0000000..39053fe
--- /dev/null
+++ b/sensors/2.0/vts/functional/VtsHalSensorsV2_0TargetTest.cpp
@@ -0,0 +1,1048 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "sensors_hidl_hal_test"
+
+#include "SensorsHidlEnvironmentV2_0.h"
+#include "sensors-vts-utils/SensorsHidlTestBase.h"
+#include "sensors-vts-utils/SensorsTestSharedMemory.h"
+
+#include <android/hardware/sensors/2.0/ISensors.h>
+#include <android/hardware/sensors/2.0/types.h>
+#include <log/log.h>
+#include <utils/SystemClock.h>
+
+#include <cinttypes>
+#include <condition_variable>
+#include <cstring>
+#include <map>
+#include <vector>
+
+using ::android::sp;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::sensors::V1_0::MetaDataEventType;
+using ::android::hardware::sensors::V1_0::OperationMode;
+using ::android::hardware::sensors::V1_0::SensorsEventFormatOffset;
+using ::android::hardware::sensors::V1_0::SensorStatus;
+using ::android::hardware::sensors::V1_0::SharedMemType;
+using ::android::hardware::sensors::V1_0::Vec3;
+
+constexpr size_t kEventSize = static_cast<size_t>(SensorsEventFormatOffset::TOTAL_LENGTH);
+
+class EventCallback : public IEventCallback {
+   public:
+    void reset() {
+        mFlushMap.clear();
+        mEventMap.clear();
+    }
+
+    void onEvent(const ::android::hardware::sensors::V1_0::Event& event) override {
+        if (event.sensorType == SensorType::META_DATA &&
+            event.u.meta.what == MetaDataEventType::META_DATA_FLUSH_COMPLETE) {
+            std::unique_lock<std::recursive_mutex> lock(mFlushMutex);
+            mFlushMap[event.sensorHandle]++;
+            mFlushCV.notify_all();
+        } else if (event.sensorType != SensorType::ADDITIONAL_INFO) {
+            std::unique_lock<std::recursive_mutex> lock(mEventMutex);
+            mEventMap[event.sensorHandle].push_back(event);
+            mEventCV.notify_all();
+        }
+    }
+
+    int32_t getFlushCount(int32_t sensorHandle) {
+        std::unique_lock<std::recursive_mutex> lock(mFlushMutex);
+        return mFlushMap[sensorHandle];
+    }
+
+    void waitForFlushEvents(const std::vector<SensorInfo>& sensorsToWaitFor,
+                            int32_t numCallsToFlush, int64_t timeoutMs) {
+        std::unique_lock<std::recursive_mutex> lock(mFlushMutex);
+        mFlushCV.wait_for(lock, std::chrono::milliseconds(timeoutMs),
+                          [&] { return flushesReceived(sensorsToWaitFor, numCallsToFlush); });
+    }
+
+    const std::vector<Event> getEvents(int32_t sensorHandle) {
+        std::unique_lock<std::recursive_mutex> lock(mEventMutex);
+        return mEventMap[sensorHandle];
+    }
+
+    void waitForEvents(const std::vector<SensorInfo>& sensorsToWaitFor, int32_t timeoutMs) {
+        std::unique_lock<std::recursive_mutex> lock(mEventMutex);
+        mEventCV.wait_for(lock, std::chrono::milliseconds(timeoutMs),
+                          [&] { return eventsReceived(sensorsToWaitFor); });
+    }
+
+   protected:
+    bool flushesReceived(const std::vector<SensorInfo>& sensorsToWaitFor, int32_t numCallsToFlush) {
+        for (const SensorInfo& sensor : sensorsToWaitFor) {
+            if (getFlushCount(sensor.sensorHandle) < numCallsToFlush) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    bool eventsReceived(const std::vector<SensorInfo>& sensorsToWaitFor) {
+        for (const SensorInfo& sensor : sensorsToWaitFor) {
+            if (getEvents(sensor.sensorHandle).size() == 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    std::map<int32_t, int32_t> mFlushMap;
+    std::recursive_mutex mFlushMutex;
+    std::condition_variable_any mFlushCV;
+
+    std::map<int32_t, std::vector<Event>> mEventMap;
+    std::recursive_mutex mEventMutex;
+    std::condition_variable_any mEventCV;
+};
+
+// The main test class for SENSORS HIDL HAL.
+
+class SensorsHidlTest : public SensorsHidlTestBase {
+   protected:
+    SensorInfo defaultSensorByType(SensorType type) override;
+    std::vector<SensorInfo> getSensorsList();
+    // implementation wrapper
+    Return<void> getSensorsList(ISensors::getSensorsList_cb _hidl_cb) override {
+        return getSensors()->getSensorsList(_hidl_cb);
+    }
+
+    Return<Result> activate(int32_t sensorHandle, bool enabled) override;
+
+    Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                         int64_t maxReportLatencyNs) override {
+        return getSensors()->batch(sensorHandle, samplingPeriodNs, maxReportLatencyNs);
+    }
+
+    Return<Result> flush(int32_t sensorHandle) override {
+        return getSensors()->flush(sensorHandle);
+    }
+
+    Return<Result> injectSensorData(const Event& event) override {
+        return getSensors()->injectSensorData(event);
+    }
+
+    Return<void> registerDirectChannel(const SharedMemInfo& mem,
+                                       ISensors::registerDirectChannel_cb _hidl_cb) override;
+
+    Return<Result> unregisterDirectChannel(int32_t channelHandle) override {
+        return getSensors()->unregisterDirectChannel(channelHandle);
+    }
+
+    Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
+                                    ISensors::configDirectReport_cb _hidl_cb) override {
+        return getSensors()->configDirectReport(sensorHandle, channelHandle, rate, _hidl_cb);
+    }
+
+    inline sp<::android::hardware::sensors::V2_0::ISensors>& getSensors() {
+        return SensorsHidlEnvironmentV2_0::Instance()->mSensors;
+    }
+
+    SensorsHidlEnvironmentBase* getEnvironment() override {
+        return SensorsHidlEnvironmentV2_0::Instance();
+    }
+
+    // Test helpers
+    void runSingleFlushTest(const std::vector<SensorInfo>& sensors, bool activateSensor,
+                            int32_t expectedFlushCount, Result expectedResponse);
+    void runFlushTest(const std::vector<SensorInfo>& sensors, bool activateSensor,
+                      int32_t flushCalls, int32_t expectedFlushCount, Result expectedResponse);
+
+    // Helper functions
+    void activateAllSensors(bool enable);
+    std::vector<SensorInfo> getNonOneShotSensors();
+    std::vector<SensorInfo> getOneShotSensors();
+    std::vector<SensorInfo> getInjectEventSensors();
+    int32_t getInvalidSensorHandle();
+    bool getDirectChannelSensor(SensorInfo* sensor, SharedMemType* memType, RateLevel* rate);
+    void verifyDirectChannel(SharedMemType memType);
+    void verifyRegisterDirectChannel(const SensorInfo& sensor, SharedMemType memType,
+                                     std::shared_ptr<SensorsTestSharedMemory> mem,
+                                     int32_t* directChannelHandle);
+    void verifyConfigure(const SensorInfo& sensor, SharedMemType memType,
+                         int32_t directChannelHandle);
+    void verifyUnregisterDirectChannel(const SensorInfo& sensor, SharedMemType memType,
+                                       int32_t directChannelHandle);
+    void checkRateLevel(const SensorInfo& sensor, int32_t directChannelHandle, RateLevel rateLevel);
+};
+
+Return<Result> SensorsHidlTest::activate(int32_t sensorHandle, bool enabled) {
+    // If activating a sensor, add the handle in a set so that when test fails it can be turned off.
+    // The handle is not removed when it is deactivating on purpose so that it is not necessary to
+    // check the return value of deactivation. Deactivating a sensor more than once does not have
+    // negative effect.
+    if (enabled) {
+        mSensorHandles.insert(sensorHandle);
+    }
+    return getSensors()->activate(sensorHandle, enabled);
+}
+
+Return<void> SensorsHidlTest::registerDirectChannel(const SharedMemInfo& mem,
+                                                    ISensors::registerDirectChannel_cb cb) {
+    // If registeration of a channel succeeds, add the handle of channel to a set so that it can be
+    // unregistered when test fails. Unregister a channel does not remove the handle on purpose.
+    // Unregistering a channel more than once should not have negative effect.
+    getSensors()->registerDirectChannel(mem, [&](auto result, auto channelHandle) {
+        if (result == Result::OK) {
+            mDirectChannelHandles.insert(channelHandle);
+        }
+        cb(result, channelHandle);
+    });
+    return Void();
+}
+
+SensorInfo SensorsHidlTest::defaultSensorByType(SensorType type) {
+    SensorInfo ret;
+
+    ret.type = (SensorType)-1;
+    getSensors()->getSensorsList([&](const auto& list) {
+        const size_t count = list.size();
+        for (size_t i = 0; i < count; ++i) {
+            if (list[i].type == type) {
+                ret = list[i];
+                return;
+            }
+        }
+    });
+
+    return ret;
+}
+
+std::vector<SensorInfo> SensorsHidlTest::getSensorsList() {
+    std::vector<SensorInfo> ret;
+
+    getSensors()->getSensorsList([&](const auto& list) {
+        const size_t count = list.size();
+        ret.reserve(list.size());
+        for (size_t i = 0; i < count; ++i) {
+            ret.push_back(list[i]);
+        }
+    });
+
+    return ret;
+}
+
+std::vector<SensorInfo> SensorsHidlTest::getNonOneShotSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        if (extractReportMode(info.flags) != SensorFlagBits::ONE_SHOT_MODE) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+std::vector<SensorInfo> SensorsHidlTest::getOneShotSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        if (extractReportMode(info.flags) == SensorFlagBits::ONE_SHOT_MODE) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+std::vector<SensorInfo> SensorsHidlTest::getInjectEventSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        if (info.flags & static_cast<uint32_t>(SensorFlagBits::DATA_INJECTION)) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+int32_t SensorsHidlTest::getInvalidSensorHandle() {
+    // Find a sensor handle that does not exist in the sensor list
+    int32_t maxHandle = 0;
+    for (const SensorInfo& sensor : getSensorsList()) {
+        maxHandle = max(maxHandle, sensor.sensorHandle);
+    }
+    return maxHandle + 1;
+}
+
+// Test if sensor list returned is valid
+TEST_F(SensorsHidlTest, SensorListValid) {
+    getSensors()->getSensorsList([&](const auto& list) {
+        const size_t count = list.size();
+        for (size_t i = 0; i < count; ++i) {
+            const auto& s = list[i];
+            SCOPED_TRACE(::testing::Message()
+                         << i << "/" << count << ": "
+                         << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                         << s.sensorHandle << std::dec << " type=" << static_cast<int>(s.type)
+                         << " name=" << s.name);
+
+            // Test non-empty type string
+            EXPECT_FALSE(s.typeAsString.empty());
+
+            // Test defined type matches defined string type
+            EXPECT_NO_FATAL_FAILURE(assertTypeMatchStringType(s.type, s.typeAsString));
+
+            // Test if all sensor has name and vendor
+            EXPECT_FALSE(s.name.empty());
+            EXPECT_FALSE(s.vendor.empty());
+
+            // Test power > 0, maxRange > 0
+            EXPECT_LE(0, s.power);
+            EXPECT_LT(0, s.maxRange);
+
+            // Info type, should have no sensor
+            EXPECT_FALSE(s.type == SensorType::ADDITIONAL_INFO || s.type == SensorType::META_DATA);
+
+            // Test fifoMax >= fifoReserved
+            EXPECT_GE(s.fifoMaxEventCount, s.fifoReservedEventCount)
+                << "max=" << s.fifoMaxEventCount << " reserved=" << s.fifoReservedEventCount;
+
+            // Test Reporting mode valid
+            EXPECT_NO_FATAL_FAILURE(assertTypeMatchReportMode(s.type, extractReportMode(s.flags)));
+
+            // Test min max are in the right order
+            EXPECT_LE(s.minDelay, s.maxDelay);
+            // Test min/max delay matches reporting mode
+            EXPECT_NO_FATAL_FAILURE(
+                assertDelayMatchReportMode(s.minDelay, s.maxDelay, extractReportMode(s.flags)));
+        }
+    });
+}
+
+// Test that SetOperationMode returns the expected value
+TEST_F(SensorsHidlTest, SetOperationMode) {
+    std::vector<SensorInfo> sensors = getInjectEventSensors();
+    if (getInjectEventSensors().size() > 0) {
+        ASSERT_EQ(Result::OK, getSensors()->setOperationMode(OperationMode::NORMAL));
+        ASSERT_EQ(Result::OK, getSensors()->setOperationMode(OperationMode::DATA_INJECTION));
+        ASSERT_EQ(Result::OK, getSensors()->setOperationMode(OperationMode::NORMAL));
+    } else {
+        ASSERT_EQ(Result::BAD_VALUE, getSensors()->setOperationMode(OperationMode::DATA_INJECTION));
+    }
+}
+
+// Test that an injected event is written back to the Event FMQ
+TEST_F(SensorsHidlTest, InjectSensorEventData) {
+    std::vector<SensorInfo> sensors = getInjectEventSensors();
+    if (sensors.size() == 0) {
+        return;
+    }
+
+    ASSERT_EQ(Result::OK, getSensors()->setOperationMode(OperationMode::DATA_INJECTION));
+
+    EventCallback callback;
+    getEnvironment()->registerCallback(&callback);
+
+    // AdditionalInfo event should not be sent to Event FMQ
+    Event additionalInfoEvent;
+    additionalInfoEvent.sensorType = SensorType::ADDITIONAL_INFO;
+    additionalInfoEvent.timestamp = android::elapsedRealtimeNano();
+
+    Event injectedEvent;
+    injectedEvent.timestamp = android::elapsedRealtimeNano();
+    Vec3 data = {1, 2, 3, SensorStatus::ACCURACY_HIGH};
+    injectedEvent.u.vec3 = data;
+
+    for (const auto& s : sensors) {
+        additionalInfoEvent.sensorHandle = s.sensorHandle;
+        EXPECT_EQ(Result::OK, getSensors()->injectSensorData(additionalInfoEvent));
+
+        injectedEvent.sensorType = s.type;
+        injectedEvent.sensorHandle = s.sensorHandle;
+        EXPECT_EQ(Result::OK, getSensors()->injectSensorData(injectedEvent));
+    }
+
+    // Wait for events to be written back to the Event FMQ
+    callback.waitForEvents(sensors, 1000 /* timeoutMs */);
+
+    for (const auto& s : sensors) {
+        auto events = callback.getEvents(s.sensorHandle);
+        auto lastEvent = events.back();
+
+        // Verify that only a single event has been received
+        ASSERT_EQ(events.size(), 1);
+
+        // Verify that the event received matches the event injected and is not the additional
+        // info event
+        ASSERT_EQ(lastEvent.sensorType, s.type);
+        ASSERT_EQ(lastEvent.sensorType, s.type);
+        ASSERT_EQ(lastEvent.timestamp, injectedEvent.timestamp);
+        ASSERT_EQ(lastEvent.u.vec3.x, injectedEvent.u.vec3.x);
+        ASSERT_EQ(lastEvent.u.vec3.y, injectedEvent.u.vec3.y);
+        ASSERT_EQ(lastEvent.u.vec3.z, injectedEvent.u.vec3.z);
+        ASSERT_EQ(lastEvent.u.vec3.status, injectedEvent.u.vec3.status);
+    }
+
+    getEnvironment()->unregisterCallback();
+    ASSERT_EQ(Result::OK, getSensors()->setOperationMode(OperationMode::NORMAL));
+}
+
+// Test if sensor hal can do UI speed accelerometer streaming properly
+TEST_F(SensorsHidlTest, AccelerometerStreamingOperationSlow) {
+    testStreamingOperation(SensorType::ACCELEROMETER, std::chrono::milliseconds(200),
+                           std::chrono::seconds(5), sAccelNormChecker);
+}
+
+// Test if sensor hal can do normal speed accelerometer streaming properly
+TEST_F(SensorsHidlTest, AccelerometerStreamingOperationNormal) {
+    testStreamingOperation(SensorType::ACCELEROMETER, std::chrono::milliseconds(20),
+                           std::chrono::seconds(5), sAccelNormChecker);
+}
+
+// Test if sensor hal can do game speed accelerometer streaming properly
+TEST_F(SensorsHidlTest, AccelerometerStreamingOperationFast) {
+    testStreamingOperation(SensorType::ACCELEROMETER, std::chrono::milliseconds(5),
+                           std::chrono::seconds(5), sAccelNormChecker);
+}
+
+// Test if sensor hal can do UI speed gyroscope streaming properly
+TEST_F(SensorsHidlTest, GyroscopeStreamingOperationSlow) {
+    testStreamingOperation(SensorType::GYROSCOPE, std::chrono::milliseconds(200),
+                           std::chrono::seconds(5), sGyroNormChecker);
+}
+
+// Test if sensor hal can do normal speed gyroscope streaming properly
+TEST_F(SensorsHidlTest, GyroscopeStreamingOperationNormal) {
+    testStreamingOperation(SensorType::GYROSCOPE, std::chrono::milliseconds(20),
+                           std::chrono::seconds(5), sGyroNormChecker);
+}
+
+// Test if sensor hal can do game speed gyroscope streaming properly
+TEST_F(SensorsHidlTest, GyroscopeStreamingOperationFast) {
+    testStreamingOperation(SensorType::GYROSCOPE, std::chrono::milliseconds(5),
+                           std::chrono::seconds(5), sGyroNormChecker);
+}
+
+// Test if sensor hal can do UI speed magnetometer streaming properly
+TEST_F(SensorsHidlTest, MagnetometerStreamingOperationSlow) {
+    testStreamingOperation(SensorType::MAGNETIC_FIELD, std::chrono::milliseconds(200),
+                           std::chrono::seconds(5), NullChecker());
+}
+
+// Test if sensor hal can do normal speed magnetometer streaming properly
+TEST_F(SensorsHidlTest, MagnetometerStreamingOperationNormal) {
+    testStreamingOperation(SensorType::MAGNETIC_FIELD, std::chrono::milliseconds(20),
+                           std::chrono::seconds(5), NullChecker());
+}
+
+// Test if sensor hal can do game speed magnetometer streaming properly
+TEST_F(SensorsHidlTest, MagnetometerStreamingOperationFast) {
+    testStreamingOperation(SensorType::MAGNETIC_FIELD, std::chrono::milliseconds(5),
+                           std::chrono::seconds(5), NullChecker());
+}
+
+// Test if sensor hal can do accelerometer sampling rate switch properly when sensor is active
+TEST_F(SensorsHidlTest, AccelerometerSamplingPeriodHotSwitchOperation) {
+    testSamplingRateHotSwitchOperation(SensorType::ACCELEROMETER);
+    testSamplingRateHotSwitchOperation(SensorType::ACCELEROMETER, false /*fastToSlow*/);
+}
+
+// Test if sensor hal can do gyroscope sampling rate switch properly when sensor is active
+TEST_F(SensorsHidlTest, GyroscopeSamplingPeriodHotSwitchOperation) {
+    testSamplingRateHotSwitchOperation(SensorType::GYROSCOPE);
+    testSamplingRateHotSwitchOperation(SensorType::GYROSCOPE, false /*fastToSlow*/);
+}
+
+// Test if sensor hal can do magnetometer sampling rate switch properly when sensor is active
+TEST_F(SensorsHidlTest, MagnetometerSamplingPeriodHotSwitchOperation) {
+    testSamplingRateHotSwitchOperation(SensorType::MAGNETIC_FIELD);
+    testSamplingRateHotSwitchOperation(SensorType::MAGNETIC_FIELD, false /*fastToSlow*/);
+}
+
+// Test if sensor hal can do accelerometer batching properly
+TEST_F(SensorsHidlTest, AccelerometerBatchingOperation) {
+    testBatchingOperation(SensorType::ACCELEROMETER);
+}
+
+// Test if sensor hal can do gyroscope batching properly
+TEST_F(SensorsHidlTest, GyroscopeBatchingOperation) {
+    testBatchingOperation(SensorType::GYROSCOPE);
+}
+
+// Test if sensor hal can do magnetometer batching properly
+TEST_F(SensorsHidlTest, MagnetometerBatchingOperation) {
+    testBatchingOperation(SensorType::MAGNETIC_FIELD);
+}
+
+// Test sensor event direct report with ashmem for accel sensor at normal rate
+TEST_F(SensorsHidlTest, AccelerometerAshmemDirectReportOperationNormal) {
+    testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::ASHMEM, RateLevel::NORMAL,
+                              sAccelNormChecker);
+}
+
+// Test sensor event direct report with ashmem for accel sensor at fast rate
+TEST_F(SensorsHidlTest, AccelerometerAshmemDirectReportOperationFast) {
+    testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::ASHMEM, RateLevel::FAST,
+                              sAccelNormChecker);
+}
+
+// Test sensor event direct report with ashmem for accel sensor at very fast rate
+TEST_F(SensorsHidlTest, AccelerometerAshmemDirectReportOperationVeryFast) {
+    testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::ASHMEM,
+                              RateLevel::VERY_FAST, sAccelNormChecker);
+}
+
+// Test sensor event direct report with ashmem for gyro sensor at normal rate
+TEST_F(SensorsHidlTest, GyroscopeAshmemDirectReportOperationNormal) {
+    testDirectReportOperation(SensorType::GYROSCOPE, SharedMemType::ASHMEM, RateLevel::NORMAL,
+                              sGyroNormChecker);
+}
+
+// Test sensor event direct report with ashmem for gyro sensor at fast rate
+TEST_F(SensorsHidlTest, GyroscopeAshmemDirectReportOperationFast) {
+    testDirectReportOperation(SensorType::GYROSCOPE, SharedMemType::ASHMEM, RateLevel::FAST,
+                              sGyroNormChecker);
+}
+
+// Test sensor event direct report with ashmem for gyro sensor at very fast rate
+TEST_F(SensorsHidlTest, GyroscopeAshmemDirectReportOperationVeryFast) {
+    testDirectReportOperation(SensorType::GYROSCOPE, SharedMemType::ASHMEM, RateLevel::VERY_FAST,
+                              sGyroNormChecker);
+}
+
+// Test sensor event direct report with ashmem for mag sensor at normal rate
+TEST_F(SensorsHidlTest, MagnetometerAshmemDirectReportOperationNormal) {
+    testDirectReportOperation(SensorType::MAGNETIC_FIELD, SharedMemType::ASHMEM, RateLevel::NORMAL,
+                              NullChecker());
+}
+
+// Test sensor event direct report with ashmem for mag sensor at fast rate
+TEST_F(SensorsHidlTest, MagnetometerAshmemDirectReportOperationFast) {
+    testDirectReportOperation(SensorType::MAGNETIC_FIELD, SharedMemType::ASHMEM, RateLevel::FAST,
+                              NullChecker());
+}
+
+// Test sensor event direct report with ashmem for mag sensor at very fast rate
+TEST_F(SensorsHidlTest, MagnetometerAshmemDirectReportOperationVeryFast) {
+    testDirectReportOperation(SensorType::MAGNETIC_FIELD, SharedMemType::ASHMEM,
+                              RateLevel::VERY_FAST, NullChecker());
+}
+
+// Test sensor event direct report with gralloc for accel sensor at normal rate
+TEST_F(SensorsHidlTest, AccelerometerGrallocDirectReportOperationNormal) {
+    testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::GRALLOC, RateLevel::NORMAL,
+                              sAccelNormChecker);
+}
+
+// Test sensor event direct report with gralloc for accel sensor at fast rate
+TEST_F(SensorsHidlTest, AccelerometerGrallocDirectReportOperationFast) {
+    testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::GRALLOC, RateLevel::FAST,
+                              sAccelNormChecker);
+}
+
+// Test sensor event direct report with gralloc for accel sensor at very fast rate
+TEST_F(SensorsHidlTest, AccelerometerGrallocDirectReportOperationVeryFast) {
+    testDirectReportOperation(SensorType::ACCELEROMETER, SharedMemType::GRALLOC,
+                              RateLevel::VERY_FAST, sAccelNormChecker);
+}
+
+// Test sensor event direct report with gralloc for gyro sensor at normal rate
+TEST_F(SensorsHidlTest, GyroscopeGrallocDirectReportOperationNormal) {
+    testDirectReportOperation(SensorType::GYROSCOPE, SharedMemType::GRALLOC, RateLevel::NORMAL,
+                              sGyroNormChecker);
+}
+
+// Test sensor event direct report with gralloc for gyro sensor at fast rate
+TEST_F(SensorsHidlTest, GyroscopeGrallocDirectReportOperationFast) {
+    testDirectReportOperation(SensorType::GYROSCOPE, SharedMemType::GRALLOC, RateLevel::FAST,
+                              sGyroNormChecker);
+}
+
+// Test sensor event direct report with gralloc for gyro sensor at very fast rate
+TEST_F(SensorsHidlTest, GyroscopeGrallocDirectReportOperationVeryFast) {
+    testDirectReportOperation(SensorType::GYROSCOPE, SharedMemType::GRALLOC, RateLevel::VERY_FAST,
+                              sGyroNormChecker);
+}
+
+// Test sensor event direct report with gralloc for mag sensor at normal rate
+TEST_F(SensorsHidlTest, MagnetometerGrallocDirectReportOperationNormal) {
+    testDirectReportOperation(SensorType::MAGNETIC_FIELD, SharedMemType::GRALLOC, RateLevel::NORMAL,
+                              NullChecker());
+}
+
+// Test sensor event direct report with gralloc for mag sensor at fast rate
+TEST_F(SensorsHidlTest, MagnetometerGrallocDirectReportOperationFast) {
+    testDirectReportOperation(SensorType::MAGNETIC_FIELD, SharedMemType::GRALLOC, RateLevel::FAST,
+                              NullChecker());
+}
+
+// Test sensor event direct report with gralloc for mag sensor at very fast rate
+TEST_F(SensorsHidlTest, MagnetometerGrallocDirectReportOperationVeryFast) {
+    testDirectReportOperation(SensorType::MAGNETIC_FIELD, SharedMemType::GRALLOC,
+                              RateLevel::VERY_FAST, NullChecker());
+}
+
+void SensorsHidlTest::activateAllSensors(bool enable) {
+    for (const SensorInfo& sensorInfo : getSensorsList()) {
+        if (isValidType(sensorInfo.type)) {
+            batch(sensorInfo.sensorHandle, sensorInfo.minDelay, 0 /* maxReportLatencyNs */);
+            activate(sensorInfo.sensorHandle, enable);
+        }
+    }
+}
+
+// Test that if initialize is called twice, then the HAL writes events to the FMQs from the second
+// call to the function.
+TEST_F(SensorsHidlTest, CallInitializeTwice) {
+    // Create a helper class so that a second environment is able to be instantiated
+    class SensorsHidlEnvironmentTest : public SensorsHidlEnvironmentV2_0 {};
+
+    if (getSensorsList().size() == 0) {
+        // No sensors
+        return;
+    }
+
+    constexpr useconds_t kCollectionTimeoutUs = 1000 * 1000;  // 1s
+    constexpr int32_t kNumEvents = 1;
+
+    // Create a new environment that calls initialize()
+    std::unique_ptr<SensorsHidlEnvironmentTest> newEnv =
+        std::make_unique<SensorsHidlEnvironmentTest>();
+    newEnv->HidlSetUp();
+
+    activateAllSensors(true);
+    // Verify that the old environment does not receive any events
+    ASSERT_EQ(collectEvents(kCollectionTimeoutUs, kNumEvents, getEnvironment()).size(), 0);
+    // Verify that the new event queue receives sensor events
+    ASSERT_GE(collectEvents(kCollectionTimeoutUs, kNumEvents, newEnv.get()).size(), kNumEvents);
+    activateAllSensors(false);
+
+    // Cleanup the test environment
+    newEnv->HidlTearDown();
+
+    // Restore the test environment for future tests
+    SensorsHidlEnvironmentV2_0::Instance()->HidlTearDown();
+    SensorsHidlEnvironmentV2_0::Instance()->HidlSetUp();
+
+    // Ensure that the original environment is receiving events
+    activateAllSensors(true);
+    ASSERT_GE(collectEvents(kCollectionTimeoutUs, kNumEvents).size(), kNumEvents);
+    activateAllSensors(false);
+}
+
+TEST_F(SensorsHidlTest, CleanupConnectionsOnInitialize) {
+    activateAllSensors(true);
+
+    // Verify that events are received
+    constexpr useconds_t kCollectionTimeoutUs = 1000 * 1000;  // 1s
+    constexpr int32_t kNumEvents = 1;
+    ASSERT_GE(collectEvents(kCollectionTimeoutUs, kNumEvents, getEnvironment()).size(), kNumEvents);
+
+    // Clear the active sensor handles so they are not disabled during TearDown
+    auto handles = mSensorHandles;
+    mSensorHandles.clear();
+    getEnvironment()->TearDown();
+    getEnvironment()->SetUp();
+
+    // Verify no events are received until sensors are re-activated
+    ASSERT_EQ(collectEvents(kCollectionTimeoutUs, kNumEvents, getEnvironment()).size(), 0);
+    activateAllSensors(true);
+    ASSERT_GE(collectEvents(kCollectionTimeoutUs, kNumEvents, getEnvironment()).size(), kNumEvents);
+
+    // Disable sensors
+    activateAllSensors(false);
+
+    // Restore active sensors prior to clearing the environment
+    mSensorHandles = handles;
+}
+
+void SensorsHidlTest::runSingleFlushTest(const std::vector<SensorInfo>& sensors,
+                                         bool activateSensor, int32_t expectedFlushCount,
+                                         Result expectedResponse) {
+    runFlushTest(sensors, activateSensor, 1 /* flushCalls */, expectedFlushCount, expectedResponse);
+}
+
+void SensorsHidlTest::runFlushTest(const std::vector<SensorInfo>& sensors, bool activateSensor,
+                                   int32_t flushCalls, int32_t expectedFlushCount,
+                                   Result expectedResponse) {
+    EventCallback callback;
+    getEnvironment()->registerCallback(&callback);
+
+    for (const SensorInfo& sensor : sensors) {
+        // Configure and activate the sensor
+        batch(sensor.sensorHandle, sensor.maxDelay, 0 /* maxReportLatencyNs */);
+        activate(sensor.sensorHandle, activateSensor);
+
+        // Flush the sensor
+        for (int32_t i = 0; i < flushCalls; i++) {
+            Result flushResult = flush(sensor.sensorHandle);
+            ASSERT_EQ(flushResult, expectedResponse);
+        }
+        activate(sensor.sensorHandle, false);
+    }
+
+    // Wait up to one second for the flush events
+    callback.waitForFlushEvents(sensors, flushCalls, 1000 /* timeoutMs */);
+    getEnvironment()->unregisterCallback();
+
+    // Check that the correct number of flushes are present for each sensor
+    for (const SensorInfo& sensor : sensors) {
+        ASSERT_EQ(callback.getFlushCount(sensor.sensorHandle), expectedFlushCount);
+    }
+}
+
+TEST_F(SensorsHidlTest, FlushSensor) {
+    // Find a sensor that is not a one-shot sensor
+    std::vector<SensorInfo> sensors = getNonOneShotSensors();
+    if (sensors.size() == 0) {
+        return;
+    }
+
+    constexpr int32_t kFlushes = 5;
+    runSingleFlushTest(sensors, true /* activateSensor */, 1 /* expectedFlushCount */, Result::OK);
+    runFlushTest(sensors, true /* activateSensor */, kFlushes, kFlushes, Result::OK);
+}
+
+TEST_F(SensorsHidlTest, FlushOneShotSensor) {
+    // Find a sensor that is a one-shot sensor
+    std::vector<SensorInfo> sensors = getOneShotSensors();
+    if (sensors.size() == 0) {
+        return;
+    }
+
+    runSingleFlushTest(sensors, true /* activateSensor */, 0 /* expectedFlushCount */,
+                       Result::BAD_VALUE);
+}
+
+TEST_F(SensorsHidlTest, FlushInactiveSensor) {
+    // Attempt to find a non-one shot sensor, then a one-shot sensor if necessary
+    std::vector<SensorInfo> sensors = getNonOneShotSensors();
+    if (sensors.size() == 0) {
+        sensors = getOneShotSensors();
+        if (sensors.size() == 0) {
+            return;
+        }
+    }
+
+    runSingleFlushTest(sensors, false /* activateSensor */, 0 /* expectedFlushCount */,
+                       Result::BAD_VALUE);
+}
+
+TEST_F(SensorsHidlTest, FlushNonexistentSensor) {
+    SensorInfo sensor;
+    std::vector<SensorInfo> sensors = getNonOneShotSensors();
+    if (sensors.size() == 0) {
+        sensors = getOneShotSensors();
+        if (sensors.size() == 0) {
+            return;
+        }
+    }
+    sensor = sensors.front();
+    sensor.sensorHandle = getInvalidSensorHandle();
+    runSingleFlushTest(std::vector<SensorInfo>{sensor}, false /* activateSensor */,
+                       0 /* expectedFlushCount */, Result::BAD_VALUE);
+}
+
+TEST_F(SensorsHidlTest, Batch) {
+    if (getSensorsList().size() == 0) {
+        return;
+    }
+
+    activateAllSensors(false /* enable */);
+    for (const SensorInfo& sensor : getSensorsList()) {
+        // Call batch on inactive sensor
+        ASSERT_EQ(batch(sensor.sensorHandle, sensor.minDelay, 0 /* maxReportLatencyNs */),
+                  Result::OK);
+
+        // Activate the sensor
+        activate(sensor.sensorHandle, true /* enabled */);
+
+        // Call batch on an active sensor
+        ASSERT_EQ(batch(sensor.sensorHandle, sensor.maxDelay, 0 /* maxReportLatencyNs */),
+                  Result::OK);
+    }
+    activateAllSensors(false /* enable */);
+
+    // Call batch on an invalid sensor
+    SensorInfo sensor = getSensorsList().front();
+    sensor.sensorHandle = getInvalidSensorHandle();
+    ASSERT_EQ(batch(sensor.sensorHandle, sensor.minDelay, 0 /* maxReportLatencyNs */),
+              Result::BAD_VALUE);
+}
+
+TEST_F(SensorsHidlTest, Activate) {
+    if (getSensorsList().size() == 0) {
+        return;
+    }
+
+    // Verify that sensor events are generated when activate is called
+    for (const SensorInfo& sensor : getSensorsList()) {
+        batch(sensor.sensorHandle, sensor.minDelay, 0 /* maxReportLatencyNs */);
+        ASSERT_EQ(activate(sensor.sensorHandle, true), Result::OK);
+
+        // Call activate on a sensor that is already activated
+        ASSERT_EQ(activate(sensor.sensorHandle, true), Result::OK);
+
+        // Deactivate the sensor
+        ASSERT_EQ(activate(sensor.sensorHandle, false), Result::OK);
+
+        // Call deactivate on a sensor that is already deactivated
+        ASSERT_EQ(activate(sensor.sensorHandle, false), Result::OK);
+    }
+
+    // Attempt to activate an invalid sensor
+    int32_t invalidHandle = getInvalidSensorHandle();
+    ASSERT_EQ(activate(invalidHandle, true), Result::BAD_VALUE);
+    ASSERT_EQ(activate(invalidHandle, false), Result::BAD_VALUE);
+}
+
+TEST_F(SensorsHidlTest, NoStaleEvents) {
+    constexpr int64_t kFiveHundredMilliseconds = 500 * 1000;
+    constexpr int64_t kOneSecond = 1000 * 1000;
+
+    // Register the callback to receive sensor events
+    EventCallback callback;
+    getEnvironment()->registerCallback(&callback);
+
+    const std::vector<SensorInfo> sensors = getSensorsList();
+    int32_t maxMinDelay = 0;
+    for (const SensorInfo& sensor : getSensorsList()) {
+        maxMinDelay = std::max(maxMinDelay, sensor.minDelay);
+    }
+
+    // Activate the sensors so that they start generating events
+    activateAllSensors(true);
+
+    // According to the CDD, the first sample must be generated within 400ms + 2 * sample_time
+    // and the maximum reporting latency is 100ms + 2 * sample_time. Wait a sufficient amount
+    // of time to guarantee that a sample has arrived.
+    callback.waitForEvents(sensors, kFiveHundredMilliseconds + (5 * maxMinDelay));
+    activateAllSensors(false);
+
+    // Save the last received event for each sensor
+    std::map<int32_t, int64_t> lastEventTimestampMap;
+    for (const SensorInfo& sensor : sensors) {
+        ASSERT_GE(callback.getEvents(sensor.sensorHandle).size(), 1);
+        lastEventTimestampMap[sensor.sensorHandle] =
+            callback.getEvents(sensor.sensorHandle).back().timestamp;
+    }
+
+    // Allow some time to pass, reset the callback, then reactivate the sensors
+    usleep(kOneSecond + (5 * maxMinDelay));
+    callback.reset();
+    activateAllSensors(true);
+    callback.waitForEvents(sensors, kFiveHundredMilliseconds + (5 * maxMinDelay));
+    activateAllSensors(false);
+
+    for (const SensorInfo& sensor : sensors) {
+        // Ensure that the first event received is not stale by ensuring that its timestamp is
+        // sufficiently different from the previous event
+        const Event newEvent = callback.getEvents(sensor.sensorHandle).front();
+        int64_t delta = newEvent.timestamp - lastEventTimestampMap[sensor.sensorHandle];
+        ASSERT_GE(delta, kFiveHundredMilliseconds + (3 * sensor.minDelay));
+    }
+
+    getEnvironment()->unregisterCallback();
+}
+
+void SensorsHidlTest::checkRateLevel(const SensorInfo& sensor, int32_t directChannelHandle,
+                                     RateLevel rateLevel) {
+    configDirectReport(sensor.sensorHandle, directChannelHandle, rateLevel,
+                       [&](Result result, int32_t reportToken) {
+                           if (isDirectReportRateSupported(sensor, rateLevel)) {
+                               ASSERT_EQ(result, Result::OK);
+                               ASSERT_GT(reportToken, 0);
+                           } else {
+                               ASSERT_EQ(result, Result::BAD_VALUE);
+                           }
+                       });
+}
+
+void SensorsHidlTest::verifyRegisterDirectChannel(const SensorInfo& sensor, SharedMemType memType,
+                                                  std::shared_ptr<SensorsTestSharedMemory> mem,
+                                                  int32_t* directChannelHandle) {
+    char* buffer = mem->getBuffer();
+    memset(buffer, 0xff, mem->getSize());
+
+    registerDirectChannel(mem->getSharedMemInfo(), [&](Result result, int32_t channelHandle) {
+        if (isDirectChannelTypeSupported(sensor, memType)) {
+            ASSERT_EQ(result, Result::OK);
+            ASSERT_GT(channelHandle, 0);
+
+            // Verify that the memory has been zeroed
+            for (size_t i = 0; i < mem->getSize(); i++) {
+                ASSERT_EQ(buffer[i], 0x00);
+            }
+        } else {
+            ASSERT_EQ(result, Result::INVALID_OPERATION);
+            ASSERT_EQ(channelHandle, -1);
+        }
+        *directChannelHandle = channelHandle;
+    });
+}
+
+void SensorsHidlTest::verifyConfigure(const SensorInfo& sensor, SharedMemType memType,
+                                      int32_t directChannelHandle) {
+    if (isDirectChannelTypeSupported(sensor, memType)) {
+        // Verify that each rate level is properly supported
+        checkRateLevel(sensor, directChannelHandle, RateLevel::NORMAL);
+        checkRateLevel(sensor, directChannelHandle, RateLevel::FAST);
+        checkRateLevel(sensor, directChannelHandle, RateLevel::VERY_FAST);
+        checkRateLevel(sensor, directChannelHandle, RateLevel::STOP);
+
+        // Verify that a sensor handle of -1 is only acceptable when using RateLevel::STOP
+        configDirectReport(
+            -1 /* sensorHandle */, directChannelHandle, RateLevel::NORMAL,
+            [](Result result, int32_t /* reportToken */) { ASSERT_EQ(result, Result::BAD_VALUE); });
+        configDirectReport(
+            -1 /* sensorHandle */, directChannelHandle, RateLevel::STOP,
+            [](Result result, int32_t /* reportToken */) { ASSERT_EQ(result, Result::OK); });
+    } else {
+        // Direct channel is not supported for this SharedMemType
+        configDirectReport(sensor.sensorHandle, directChannelHandle, RateLevel::NORMAL,
+                           [](Result result, int32_t /* reportToken */) {
+                               ASSERT_EQ(result, Result::INVALID_OPERATION);
+                           });
+    }
+}
+
+void SensorsHidlTest::verifyUnregisterDirectChannel(const SensorInfo& sensor, SharedMemType memType,
+                                                    int32_t directChannelHandle) {
+    Result result = unregisterDirectChannel(directChannelHandle);
+    if (isDirectChannelTypeSupported(sensor, memType)) {
+        ASSERT_EQ(result, Result::OK);
+    } else {
+        ASSERT_EQ(result, Result::INVALID_OPERATION);
+    }
+}
+
+void SensorsHidlTest::verifyDirectChannel(SharedMemType memType) {
+    constexpr size_t kNumEvents = 1;
+    constexpr size_t kMemSize = kNumEvents * kEventSize;
+
+    std::shared_ptr<SensorsTestSharedMemory> mem(
+        SensorsTestSharedMemory::create(memType, kMemSize));
+    ASSERT_NE(mem, nullptr);
+
+    for (const SensorInfo& sensor : getSensorsList()) {
+        int32_t directChannelHandle = 0;
+        verifyRegisterDirectChannel(sensor, memType, mem, &directChannelHandle);
+        verifyConfigure(sensor, memType, directChannelHandle);
+        verifyUnregisterDirectChannel(sensor, memType, directChannelHandle);
+    }
+}
+
+TEST_F(SensorsHidlTest, DirectChannelAshmem) {
+    verifyDirectChannel(SharedMemType::ASHMEM);
+}
+
+TEST_F(SensorsHidlTest, DirectChannelGralloc) {
+    verifyDirectChannel(SharedMemType::GRALLOC);
+}
+
+bool SensorsHidlTest::getDirectChannelSensor(SensorInfo* sensor, SharedMemType* memType,
+                                             RateLevel* rate) {
+    bool found = false;
+    for (const SensorInfo& curSensor : getSensorsList()) {
+        if (isDirectChannelTypeSupported(curSensor, SharedMemType::ASHMEM)) {
+            *memType = SharedMemType::ASHMEM;
+            *sensor = curSensor;
+            found = true;
+            break;
+        } else if (isDirectChannelTypeSupported(curSensor, SharedMemType::GRALLOC)) {
+            *memType = SharedMemType::GRALLOC;
+            *sensor = curSensor;
+            found = true;
+            break;
+        }
+    }
+
+    if (found) {
+        // Find a supported rate level
+        constexpr int kNumRateLevels = 3;
+        RateLevel rates[kNumRateLevels] = {RateLevel::NORMAL, RateLevel::FAST,
+                                           RateLevel::VERY_FAST};
+        *rate = RateLevel::STOP;
+        for (int i = 0; i < kNumRateLevels; i++) {
+            if (isDirectReportRateSupported(*sensor, rates[i])) {
+                *rate = rates[i];
+            }
+        }
+
+        // At least one rate level must be supported
+        EXPECT_NE(*rate, RateLevel::STOP);
+    }
+    return found;
+}
+
+TEST_F(SensorsHidlTest, ConfigureDirectChannelWithInvalidHandle) {
+    SensorInfo sensor;
+    SharedMemType memType;
+    RateLevel rate;
+    if (!getDirectChannelSensor(&sensor, &memType, &rate)) {
+        return;
+    }
+
+    // Verify that an invalid channel handle produces a BAD_VALUE result
+    configDirectReport(sensor.sensorHandle, -1, rate, [](Result result, int32_t /* reportToken */) {
+        ASSERT_EQ(result, Result::BAD_VALUE);
+    });
+}
+
+TEST_F(SensorsHidlTest, CleanupDirectConnectionOnInitialize) {
+    constexpr size_t kNumEvents = 1;
+    constexpr size_t kMemSize = kNumEvents * kEventSize;
+
+    SensorInfo sensor;
+    SharedMemType memType;
+    RateLevel rate;
+
+    if (!getDirectChannelSensor(&sensor, &memType, &rate)) {
+        return;
+    }
+
+    std::shared_ptr<SensorsTestSharedMemory> mem(
+        SensorsTestSharedMemory::create(memType, kMemSize));
+    ASSERT_NE(mem, nullptr);
+
+    int32_t directChannelHandle = 0;
+    registerDirectChannel(mem->getSharedMemInfo(), [&](Result result, int32_t channelHandle) {
+        ASSERT_EQ(result, Result::OK);
+        directChannelHandle = channelHandle;
+    });
+
+    // Configure the channel and expect success
+    configDirectReport(
+        sensor.sensorHandle, directChannelHandle, rate,
+        [](Result result, int32_t /* reportToken */) { ASSERT_EQ(result, Result::OK); });
+
+    // Call initialize() via the environment setup to cause the HAL to re-initialize
+    // Clear the active direct connections so they are not stopped during TearDown
+    auto handles = mDirectChannelHandles;
+    mDirectChannelHandles.clear();
+    getEnvironment()->TearDown();
+    getEnvironment()->SetUp();
+
+    // Attempt to configure the direct channel and expect it to fail
+    configDirectReport(
+        sensor.sensorHandle, directChannelHandle, rate,
+        [](Result result, int32_t /* reportToken */) { ASSERT_EQ(result, Result::BAD_VALUE); });
+
+    // Restore original handles, though they should already be deactivated
+    mDirectChannelHandles = handles;
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(SensorsHidlEnvironmentV2_0::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    SensorsHidlEnvironmentV2_0::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
+// vim: set ts=2 sw=2
diff --git a/sensors/common/vts/OWNERS b/sensors/common/vts/OWNERS
new file mode 100644
index 0000000..759d87b
--- /dev/null
+++ b/sensors/common/vts/OWNERS
@@ -0,0 +1,7 @@
+# Sensors team
+bduddie@google.com
+bstack@google.com
+
+# VTS team
+trong@google.com
+yim@google.com
diff --git a/sensors/common/vts/utils/Android.bp b/sensors/common/vts/utils/Android.bp
new file mode 100644
index 0000000..95df425
--- /dev/null
+++ b/sensors/common/vts/utils/Android.bp
@@ -0,0 +1,37 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "VtsHalSensorsTargetTestUtils",
+    srcs: [
+        "GrallocWrapper.cpp",
+        "SensorsHidlEnvironmentBase.cpp",
+        "SensorsHidlTestBase.cpp",
+        "SensorsTestSharedMemory.cpp",
+    ],
+    export_include_dirs: [
+        "include",
+    ],
+    local_include_dirs: [
+        "include/sensors-vts-utils",
+    ],
+    static_libs: [
+        "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hardware.sensors@1.0",
+        "VtsHalHidlTargetTestBase",
+    ],
+}
diff --git a/sensors/common/vts/utils/GrallocWrapper.cpp b/sensors/common/vts/utils/GrallocWrapper.cpp
new file mode 100644
index 0000000..7bed16d
--- /dev/null
+++ b/sensors/common/vts/utils/GrallocWrapper.cpp
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GrallocWrapper"
+
+#include "GrallocWrapper.h"
+
+#include <utils/Log.h>
+
+namespace android {
+
+GrallocWrapper::GrallocWrapper() {
+    init();
+}
+
+void GrallocWrapper::init() {
+    mAllocator = allocator2::IAllocator::getService();
+    if (mAllocator == nullptr) {
+        ALOGE("Failed to get allocator service");
+    }
+
+    mMapper = mapper2::IMapper::getService();
+    if (mMapper == nullptr) {
+        ALOGE("Failed to get mapper service");
+    }
+    if (mMapper->isRemote()) {
+        ALOGE("Mapper is not in passthrough mode");
+    }
+}
+
+GrallocWrapper::~GrallocWrapper() {
+    for (auto bufferHandle : mClonedBuffers) {
+        auto buffer = const_cast<native_handle_t*>(bufferHandle);
+        native_handle_close(buffer);
+        native_handle_delete(buffer);
+    }
+    mClonedBuffers.clear();
+
+    for (auto bufferHandle : mImportedBuffers) {
+        auto buffer = const_cast<native_handle_t*>(bufferHandle);
+        if (mMapper->freeBuffer(buffer) != mapper2::Error::NONE) {
+            ALOGE("Failed to free buffer %p", buffer);
+        }
+    }
+    mImportedBuffers.clear();
+}
+
+sp<allocator2::IAllocator> GrallocWrapper::getAllocator() const {
+    return mAllocator;
+}
+
+std::string GrallocWrapper::dumpDebugInfo() {
+    std::string debugInfo;
+    mAllocator->dumpDebugInfo([&](const auto& tmpDebugInfo) { debugInfo = tmpDebugInfo.c_str(); });
+
+    return debugInfo;
+}
+
+const native_handle_t* GrallocWrapper::cloneBuffer(const hardware::hidl_handle& rawHandle) {
+    const native_handle_t* bufferHandle = native_handle_clone(rawHandle.getNativeHandle());
+
+    if (bufferHandle) {
+        mClonedBuffers.insert(bufferHandle);
+    }
+    return bufferHandle;
+}
+
+std::vector<const native_handle_t*> GrallocWrapper::allocate(
+    const mapper2::BufferDescriptor& descriptor, uint32_t count, bool import, uint32_t* outStride) {
+    std::vector<const native_handle_t*> bufferHandles;
+    bufferHandles.reserve(count);
+    mAllocator->allocate(descriptor, count,
+                         [&](const auto& tmpError, const auto& tmpStride, const auto& tmpBuffers) {
+                             if (mapper2::Error::NONE != tmpError) {
+                                 ALOGE("Failed to allocate buffers");
+                             }
+                             if (count != tmpBuffers.size()) {
+                                 ALOGE("Invalid buffer array");
+                             }
+
+                             for (uint32_t i = 0; i < count; i++) {
+                                 if (import) {
+                                     bufferHandles.push_back(importBuffer(tmpBuffers[i]));
+                                 } else {
+                                     bufferHandles.push_back(cloneBuffer(tmpBuffers[i]));
+                                 }
+                             }
+
+                             if (outStride) {
+                                 *outStride = tmpStride;
+                             }
+                         });
+
+    return bufferHandles;
+}
+
+const native_handle_t* GrallocWrapper::allocate(
+    const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo, bool import,
+    uint32_t* outStride) {
+    mapper2::BufferDescriptor descriptor = createDescriptor(descriptorInfo);
+    auto buffers = allocate(descriptor, 1, import, outStride);
+    return buffers[0];
+}
+
+sp<mapper2::IMapper> GrallocWrapper::getMapper() const {
+    return mMapper;
+}
+
+mapper2::BufferDescriptor GrallocWrapper::createDescriptor(
+    const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo) {
+    mapper2::BufferDescriptor descriptor;
+    mMapper->createDescriptor(descriptorInfo, [&](const auto& tmpError, const auto& tmpDescriptor) {
+        if (tmpError != mapper2::Error::NONE) {
+            ALOGE("Failed to create descriptor");
+        }
+        descriptor = tmpDescriptor;
+    });
+
+    return descriptor;
+}
+
+const native_handle_t* GrallocWrapper::importBuffer(const hardware::hidl_handle& rawHandle) {
+    const native_handle_t* bufferHandle = nullptr;
+    mMapper->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBuffer) {
+        if (tmpError != mapper2::Error::NONE) {
+            ALOGE("Failed to import buffer %p", rawHandle.getNativeHandle());
+        }
+        bufferHandle = static_cast<const native_handle_t*>(tmpBuffer);
+    });
+
+    if (bufferHandle) {
+        mImportedBuffers.insert(bufferHandle);
+    }
+
+    return bufferHandle;
+}
+
+void GrallocWrapper::freeBuffer(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    if (mImportedBuffers.erase(bufferHandle)) {
+        mapper2::Error error = mMapper->freeBuffer(buffer);
+        if (error != mapper2::Error::NONE) {
+            ALOGE("Failed to free %p", buffer);
+        }
+    } else {
+        mClonedBuffers.erase(bufferHandle);
+        native_handle_close(buffer);
+        native_handle_delete(buffer);
+    }
+}
+
+void* GrallocWrapper::lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                           const mapper2::IMapper::Rect& accessRegion, int acquireFence) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
+    hardware::hidl_handle acquireFenceHandle;
+    if (acquireFence >= 0) {
+        auto h = native_handle_init(acquireFenceStorage, 1, 0);
+        h->data[0] = acquireFence;
+        acquireFenceHandle = h;
+    }
+
+    void* data = nullptr;
+    mMapper->lock(buffer, cpuUsage, accessRegion, acquireFenceHandle,
+                  [&](const auto& tmpError, const auto& tmpData) {
+                      if (tmpError != mapper2::Error::NONE) {
+                          ALOGE("Failed to lock buffer %p", buffer);
+                      }
+                      data = tmpData;
+                  });
+
+    if (acquireFence >= 0) {
+        close(acquireFence);
+    }
+
+    return data;
+}
+
+int GrallocWrapper::unlock(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    int releaseFence = -1;
+    mMapper->unlock(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) {
+        if (tmpError != mapper2::Error::NONE) {
+            ALOGE("Failed to unlock buffer %p", buffer);
+        }
+
+        auto fenceHandle = tmpReleaseFence.getNativeHandle();
+        if (fenceHandle) {
+            if (fenceHandle->numInts != 0) {
+                ALOGE("Invalid fence handle %p", fenceHandle);
+            }
+            if (fenceHandle->numFds == 1) {
+                releaseFence = dup(fenceHandle->data[0]);
+                if (releaseFence < 0) {
+                    ALOGE("Failed to dup fence fd");
+                }
+            } else {
+                if (fenceHandle->numFds != 0) {
+                    ALOGE("Invalid fence handle %p", fenceHandle);
+                }
+            }
+        }
+    });
+
+    return releaseFence;
+}
+
+}  // namespace android
diff --git a/sensors/common/vts/utils/OWNERS b/sensors/common/vts/utils/OWNERS
new file mode 100644
index 0000000..759d87b
--- /dev/null
+++ b/sensors/common/vts/utils/OWNERS
@@ -0,0 +1,7 @@
+# Sensors team
+bduddie@google.com
+bstack@google.com
+
+# VTS team
+trong@google.com
+yim@google.com
diff --git a/sensors/common/vts/utils/SensorsHidlEnvironmentBase.cpp b/sensors/common/vts/utils/SensorsHidlEnvironmentBase.cpp
new file mode 100644
index 0000000..affdf8b
--- /dev/null
+++ b/sensors/common/vts/utils/SensorsHidlEnvironmentBase.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SensorsHidlEnvironmentBase.h"
+
+void SensorsHidlEnvironmentBase::HidlSetUp() {
+    ASSERT_TRUE(resetHal()) << "could not get hidl service";
+
+    mCollectionEnabled = false;
+    startPollingThread();
+
+    // In case framework just stopped for test and there is sensor events in the pipe,
+    // wait some time for those events to be cleared to avoid them messing up the test.
+    std::this_thread::sleep_for(std::chrono::seconds(3));
+}
+
+void SensorsHidlEnvironmentBase::HidlTearDown() {
+    mStopThread = true;
+    mPollThread.detach();
+}
+
+void SensorsHidlEnvironmentBase::catEvents(std::vector<Event>* output) {
+    std::lock_guard<std::mutex> lock(mEventsMutex);
+    if (output) {
+        output->insert(output->end(), mEvents.begin(), mEvents.end());
+    }
+    mEvents.clear();
+}
+
+void SensorsHidlEnvironmentBase::setCollection(bool enable) {
+    std::lock_guard<std::mutex> lock(mEventsMutex);
+    mCollectionEnabled = enable;
+}
+
+void SensorsHidlEnvironmentBase::addEvent(const Event& ev) {
+    std::lock_guard<std::mutex> lock(mEventsMutex);
+    if (mCollectionEnabled) {
+        mEvents.push_back(ev);
+    }
+
+    if (mCallback != nullptr) {
+        mCallback->onEvent(ev);
+    }
+}
+
+void SensorsHidlEnvironmentBase::registerCallback(IEventCallback* callback) {
+    std::lock_guard<std::mutex> lock(mEventsMutex);
+    mCallback = callback;
+}
+
+void SensorsHidlEnvironmentBase::unregisterCallback() {
+    std::lock_guard<std::mutex> lock(mEventsMutex);
+    mCallback = nullptr;
+}
\ No newline at end of file
diff --git a/sensors/common/vts/utils/SensorsHidlTestBase.cpp b/sensors/common/vts/utils/SensorsHidlTestBase.cpp
new file mode 100644
index 0000000..18549df
--- /dev/null
+++ b/sensors/common/vts/utils/SensorsHidlTestBase.cpp
@@ -0,0 +1,584 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SensorsHidlTestBase.h"
+
+#include "sensors-vts-utils/GrallocWrapper.h"
+#include "sensors-vts-utils/SensorsTestSharedMemory.h"
+
+#include <hardware/sensors.h>  // for sensor type strings
+#include <log/log.h>
+#include <utils/SystemClock.h>
+
+#include <cinttypes>
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::sensors::V1_0::SensorFlagShift;
+using ::android::hardware::sensors::V1_0::SensorsEventFormatOffset;
+
+const Vec3NormChecker SensorsHidlTestBase::sAccelNormChecker(
+    Vec3NormChecker::byNominal(GRAVITY_EARTH, 1.0f /*m/s^2*/));
+const Vec3NormChecker SensorsHidlTestBase::sGyroNormChecker(
+    Vec3NormChecker::byNominal(0.f, 0.1f /*rad/s*/));
+
+std::vector<Event> SensorsHidlTestBase::collectEvents(useconds_t timeLimitUs, size_t nEventLimit,
+                                                      bool clearBeforeStart,
+                                                      bool changeCollection) {
+    return collectEvents(timeLimitUs, nEventLimit, getEnvironment(), clearBeforeStart,
+                         changeCollection);
+}
+
+std::vector<Event> SensorsHidlTestBase::collectEvents(useconds_t timeLimitUs, size_t nEventLimit,
+                                                      SensorsHidlEnvironmentBase* environment,
+                                                      bool clearBeforeStart,
+                                                      bool changeCollection) {
+    std::vector<Event> events;
+    constexpr useconds_t SLEEP_GRANULARITY = 100 * 1000;  // granularity 100 ms
+
+    ALOGI("collect max of %zu events for %d us, clearBeforeStart %d", nEventLimit, timeLimitUs,
+          clearBeforeStart);
+
+    if (changeCollection) {
+        environment->setCollection(true);
+    }
+    if (clearBeforeStart) {
+        environment->catEvents(nullptr);
+    }
+
+    while (timeLimitUs > 0) {
+        useconds_t duration = std::min(SLEEP_GRANULARITY, timeLimitUs);
+        usleep(duration);
+        timeLimitUs -= duration;
+
+        environment->catEvents(&events);
+        if (events.size() >= nEventLimit) {
+            break;
+        }
+        ALOGV("time to go = %d, events to go = %d", (int)timeLimitUs,
+              (int)(nEventLimit - events.size()));
+    }
+
+    if (changeCollection) {
+        environment->setCollection(false);
+    }
+    return events;
+}
+
+void SensorsHidlTestBase::assertTypeMatchStringType(SensorType type,
+                                                    const hidl_string& stringType) {
+    if (type >= SensorType::DEVICE_PRIVATE_BASE) {
+        return;
+    }
+
+    switch (type) {
+#define CHECK_TYPE_STRING_FOR_SENSOR_TYPE(type)                      \
+    case SensorType::type:                                           \
+        ASSERT_STREQ(SENSOR_STRING_TYPE_##type, stringType.c_str()); \
+        break;
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ACCELEROMETER);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ACCELEROMETER_UNCALIBRATED);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ADDITIONAL_INFO);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(AMBIENT_TEMPERATURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(DEVICE_ORIENTATION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(DYNAMIC_SENSOR_META);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GAME_ROTATION_VECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GEOMAGNETIC_ROTATION_VECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GLANCE_GESTURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GRAVITY);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GYROSCOPE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GYROSCOPE_UNCALIBRATED);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(HEART_BEAT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(HEART_RATE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LIGHT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LINEAR_ACCELERATION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LOW_LATENCY_OFFBODY_DETECT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MAGNETIC_FIELD);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MAGNETIC_FIELD_UNCALIBRATED);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MOTION_DETECT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ORIENTATION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PICK_UP_GESTURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(POSE_6DOF);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PRESSURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PROXIMITY);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(RELATIVE_HUMIDITY);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ROTATION_VECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(SIGNIFICANT_MOTION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STATIONARY_DETECT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STEP_COUNTER);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STEP_DETECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(TEMPERATURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(TILT_DETECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(WAKE_GESTURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(WRIST_TILT_GESTURE);
+        default:
+            FAIL() << "Type " << static_cast<int>(type)
+                   << " in android defined range is not checked, "
+                   << "stringType = " << stringType;
+#undef CHECK_TYPE_STRING_FOR_SENSOR_TYPE
+    }
+}
+
+void SensorsHidlTestBase::assertTypeMatchReportMode(SensorType type, SensorFlagBits reportMode) {
+    if (type >= SensorType::DEVICE_PRIVATE_BASE) {
+        return;
+    }
+
+    SensorFlagBits expected = expectedReportModeForType(type);
+
+    ASSERT_TRUE(expected == (SensorFlagBits)-1 || expected == reportMode)
+        << "reportMode=" << static_cast<int>(reportMode)
+        << "expected=" << static_cast<int>(expected);
+}
+
+void SensorsHidlTestBase::assertDelayMatchReportMode(int32_t minDelay, int32_t maxDelay,
+                                                     SensorFlagBits reportMode) {
+    switch (reportMode) {
+        case SensorFlagBits::CONTINUOUS_MODE:
+            ASSERT_LT(0, minDelay);
+            ASSERT_LE(0, maxDelay);
+            break;
+        case SensorFlagBits::ON_CHANGE_MODE:
+            ASSERT_LE(0, minDelay);
+            ASSERT_LE(0, maxDelay);
+            break;
+        case SensorFlagBits::ONE_SHOT_MODE:
+            ASSERT_EQ(-1, minDelay);
+            ASSERT_EQ(0, maxDelay);
+            break;
+        case SensorFlagBits::SPECIAL_REPORTING_MODE:
+            // do not enforce anything for special reporting mode
+            break;
+        default:
+            FAIL() << "Report mode " << static_cast<int>(reportMode) << " not checked";
+    }
+}
+
+// return -1 means no expectation for this type
+SensorFlagBits SensorsHidlTestBase::expectedReportModeForType(SensorType type) {
+    switch (type) {
+        case SensorType::ACCELEROMETER:
+        case SensorType::ACCELEROMETER_UNCALIBRATED:
+        case SensorType::GYROSCOPE:
+        case SensorType::MAGNETIC_FIELD:
+        case SensorType::ORIENTATION:
+        case SensorType::PRESSURE:
+        case SensorType::TEMPERATURE:
+        case SensorType::GRAVITY:
+        case SensorType::LINEAR_ACCELERATION:
+        case SensorType::ROTATION_VECTOR:
+        case SensorType::MAGNETIC_FIELD_UNCALIBRATED:
+        case SensorType::GAME_ROTATION_VECTOR:
+        case SensorType::GYROSCOPE_UNCALIBRATED:
+        case SensorType::GEOMAGNETIC_ROTATION_VECTOR:
+        case SensorType::POSE_6DOF:
+        case SensorType::HEART_BEAT:
+            return SensorFlagBits::CONTINUOUS_MODE;
+
+        case SensorType::LIGHT:
+        case SensorType::PROXIMITY:
+        case SensorType::RELATIVE_HUMIDITY:
+        case SensorType::AMBIENT_TEMPERATURE:
+        case SensorType::HEART_RATE:
+        case SensorType::DEVICE_ORIENTATION:
+        case SensorType::STEP_COUNTER:
+        case SensorType::LOW_LATENCY_OFFBODY_DETECT:
+            return SensorFlagBits::ON_CHANGE_MODE;
+
+        case SensorType::SIGNIFICANT_MOTION:
+        case SensorType::WAKE_GESTURE:
+        case SensorType::GLANCE_GESTURE:
+        case SensorType::PICK_UP_GESTURE:
+        case SensorType::MOTION_DETECT:
+        case SensorType::STATIONARY_DETECT:
+            return SensorFlagBits::ONE_SHOT_MODE;
+
+        case SensorType::STEP_DETECTOR:
+        case SensorType::TILT_DETECTOR:
+        case SensorType::WRIST_TILT_GESTURE:
+        case SensorType::DYNAMIC_SENSOR_META:
+            return SensorFlagBits::SPECIAL_REPORTING_MODE;
+
+        default:
+            ALOGW("Type %d is not implemented in expectedReportModeForType", (int)type);
+            return (SensorFlagBits)-1;
+    }
+}
+
+bool SensorsHidlTestBase::isDirectReportRateSupported(SensorInfo sensor, RateLevel rate) {
+    unsigned int r = static_cast<unsigned int>(sensor.flags & SensorFlagBits::MASK_DIRECT_REPORT) >>
+                     static_cast<unsigned int>(SensorFlagShift::DIRECT_REPORT);
+    return r >= static_cast<unsigned int>(rate);
+}
+
+bool SensorsHidlTestBase::isDirectChannelTypeSupported(SensorInfo sensor, SharedMemType type) {
+    switch (type) {
+        case SharedMemType::ASHMEM:
+            return (sensor.flags & SensorFlagBits::DIRECT_CHANNEL_ASHMEM) != 0;
+        case SharedMemType::GRALLOC:
+            return (sensor.flags & SensorFlagBits::DIRECT_CHANNEL_GRALLOC) != 0;
+        default:
+            return false;
+    }
+}
+
+void SensorsHidlTestBase::testDirectReportOperation(SensorType type, SharedMemType memType,
+                                                    RateLevel rate,
+                                                    const SensorEventsChecker& checker) {
+    constexpr size_t kEventSize = static_cast<size_t>(SensorsEventFormatOffset::TOTAL_LENGTH);
+    constexpr size_t kNEvent = 4096;
+    constexpr size_t kMemSize = kEventSize * kNEvent;
+
+    constexpr float kNormalNominal = 50;
+    constexpr float kFastNominal = 200;
+    constexpr float kVeryFastNominal = 800;
+
+    constexpr float kNominalTestTimeSec = 1.f;
+    constexpr float kMaxTestTimeSec = kNominalTestTimeSec + 0.5f;  // 0.5 second for initialization
+
+    SensorInfo sensor = defaultSensorByType(type);
+
+    if (!isValidType(sensor.type)) {
+        // no default sensor of this type
+        return;
+    }
+
+    if (!isDirectReportRateSupported(sensor, rate)) {
+        return;
+    }
+
+    if (!isDirectChannelTypeSupported(sensor, memType)) {
+        return;
+    }
+
+    std::unique_ptr<SensorsTestSharedMemory> mem(
+        SensorsTestSharedMemory::create(memType, kMemSize));
+    ASSERT_NE(mem, nullptr);
+
+    char* buffer = mem->getBuffer();
+    // fill memory with data
+    for (size_t i = 0; i < kMemSize; ++i) {
+        buffer[i] = '\xcc';
+    }
+
+    int32_t channelHandle;
+    registerDirectChannel(mem->getSharedMemInfo(),
+                          [&channelHandle](auto result, auto channelHandle_) {
+                              ASSERT_EQ(result, Result::OK);
+                              channelHandle = channelHandle_;
+                          });
+
+    // check memory is zeroed
+    for (size_t i = 0; i < kMemSize; ++i) {
+        ASSERT_EQ(buffer[i], '\0');
+    }
+
+    int32_t eventToken;
+    configDirectReport(sensor.sensorHandle, channelHandle, rate,
+                       [&eventToken](auto result, auto token) {
+                           ASSERT_EQ(result, Result::OK);
+                           eventToken = token;
+                       });
+
+    usleep(static_cast<useconds_t>(kMaxTestTimeSec * 1e6f));
+    auto events = mem->parseEvents();
+
+    // find norminal rate
+    float nominalFreq = 0.f;
+    switch (rate) {
+        case RateLevel::NORMAL:
+            nominalFreq = kNormalNominal;
+            break;
+        case RateLevel::FAST:
+            nominalFreq = kFastNominal;
+            break;
+        case RateLevel::VERY_FAST:
+            nominalFreq = kVeryFastNominal;
+            break;
+        case RateLevel::STOP:
+            FAIL();
+    }
+
+    // allowed to be between 55% and 220% of nominal freq
+    ASSERT_GT(events.size(), static_cast<size_t>(nominalFreq * 0.55f * kNominalTestTimeSec));
+    ASSERT_LT(events.size(), static_cast<size_t>(nominalFreq * 2.2f * kMaxTestTimeSec));
+
+    int64_t lastTimestamp = 0;
+    bool typeErrorReported = false;
+    bool tokenErrorReported = false;
+    bool timestampErrorReported = false;
+    std::vector<Event> sensorEvents;
+    for (auto& e : events) {
+        if (!tokenErrorReported) {
+            EXPECT_EQ(eventToken, e.sensorHandle)
+                << (tokenErrorReported = true,
+                    "Event token does not match that retured from configDirectReport");
+        }
+
+        if (isMetaSensorType(e.sensorType)) {
+            continue;
+        }
+        sensorEvents.push_back(e);
+
+        if (!typeErrorReported) {
+            EXPECT_EQ(type, e.sensorType)
+                << (typeErrorReported = true,
+                    "Type in event does not match type of sensor registered.");
+        }
+        if (!timestampErrorReported) {
+            EXPECT_GT(e.timestamp, lastTimestamp)
+                << (timestampErrorReported = true, "Timestamp not monotonically increasing");
+        }
+        lastTimestamp = e.timestamp;
+    }
+
+    std::string s;
+    EXPECT_TRUE(checker.check(sensorEvents, &s)) << s;
+
+    // stop sensor and unregister channel
+    configDirectReport(sensor.sensorHandle, channelHandle, RateLevel::STOP,
+                       [](auto result, auto) { EXPECT_EQ(result, Result::OK); });
+    EXPECT_EQ(unregisterDirectChannel(channelHandle), Result::OK);
+}
+
+void SensorsHidlTestBase::testStreamingOperation(SensorType type,
+                                                 std::chrono::nanoseconds samplingPeriod,
+                                                 std::chrono::seconds duration,
+                                                 const SensorEventsChecker& checker) {
+    std::vector<Event> events;
+    std::vector<Event> sensorEvents;
+
+    const int64_t samplingPeriodInNs = samplingPeriod.count();
+    const int64_t batchingPeriodInNs = 0;  // no batching
+    const useconds_t minTimeUs = std::chrono::microseconds(duration).count();
+    const size_t minNEvent = duration / samplingPeriod;
+
+    SensorInfo sensor = defaultSensorByType(type);
+
+    if (!isValidType(sensor.type)) {
+        // no default sensor of this type
+        return;
+    }
+
+    if (std::chrono::microseconds(sensor.minDelay) > samplingPeriod) {
+        // rate not supported
+        return;
+    }
+
+    int32_t handle = sensor.sensorHandle;
+
+    ASSERT_EQ(batch(handle, samplingPeriodInNs, batchingPeriodInNs), Result::OK);
+    ASSERT_EQ(activate(handle, 1), Result::OK);
+    events = collectEvents(minTimeUs, minNEvent, true /*clearBeforeStart*/);
+    ASSERT_EQ(activate(handle, 0), Result::OK);
+
+    ALOGI("Collected %zu samples", events.size());
+
+    ASSERT_GT(events.size(), 0u);
+
+    bool handleMismatchReported = false;
+    bool metaSensorTypeErrorReported = false;
+    for (auto& e : events) {
+        if (e.sensorType == type) {
+            // avoid generating hundreds of error
+            if (!handleMismatchReported) {
+                EXPECT_EQ(e.sensorHandle, handle)
+                    << (handleMismatchReported = true,
+                        "Event of the same type must come from the sensor registered");
+            }
+            sensorEvents.push_back(e);
+        } else {
+            // avoid generating hundreds of error
+            if (!metaSensorTypeErrorReported) {
+                EXPECT_TRUE(isMetaSensorType(e.sensorType))
+                    << (metaSensorTypeErrorReported = true,
+                        "Only meta types are allowed besides the type registered");
+            }
+        }
+    }
+
+    std::string s;
+    EXPECT_TRUE(checker.check(sensorEvents, &s)) << s;
+
+    EXPECT_GE(sensorEvents.size(),
+              minNEvent / 2);  // make sure returned events are not all meta
+}
+
+void SensorsHidlTestBase::testSamplingRateHotSwitchOperation(SensorType type, bool fastToSlow) {
+    std::vector<Event> events1, events2;
+
+    constexpr int64_t batchingPeriodInNs = 0;          // no batching
+    constexpr int64_t collectionTimeoutUs = 60000000;  // 60s
+    constexpr size_t minNEvent = 50;
+
+    SensorInfo sensor = defaultSensorByType(type);
+
+    if (!isValidType(sensor.type)) {
+        // no default sensor of this type
+        return;
+    }
+
+    int32_t handle = sensor.sensorHandle;
+    int64_t minSamplingPeriodInNs = sensor.minDelay * 1000ll;
+    int64_t maxSamplingPeriodInNs = sensor.maxDelay * 1000ll;
+
+    if (minSamplingPeriodInNs == maxSamplingPeriodInNs) {
+        // only support single rate
+        return;
+    }
+
+    int64_t firstCollectionPeriod = fastToSlow ? minSamplingPeriodInNs : maxSamplingPeriodInNs;
+    int64_t secondCollectionPeriod = !fastToSlow ? minSamplingPeriodInNs : maxSamplingPeriodInNs;
+
+    // first collection
+    ASSERT_EQ(batch(handle, firstCollectionPeriod, batchingPeriodInNs), Result::OK);
+    ASSERT_EQ(activate(handle, 1), Result::OK);
+
+    usleep(500000);  // sleep 0.5 sec to wait for change rate to happen
+    events1 = collectEvents(collectionTimeoutUs, minNEvent);
+
+    // second collection, without stop sensor
+    ASSERT_EQ(batch(handle, secondCollectionPeriod, batchingPeriodInNs), Result::OK);
+
+    usleep(500000);  // sleep 0.5 sec to wait for change rate to happen
+    events2 = collectEvents(collectionTimeoutUs, minNEvent);
+
+    // end of collection, stop sensor
+    ASSERT_EQ(activate(handle, 0), Result::OK);
+
+    ALOGI("Collected %zu fast samples and %zu slow samples", events1.size(), events2.size());
+
+    ASSERT_GT(events1.size(), 0u);
+    ASSERT_GT(events2.size(), 0u);
+
+    int64_t minDelayAverageInterval, maxDelayAverageInterval;
+    std::vector<Event>& minDelayEvents(fastToSlow ? events1 : events2);
+    std::vector<Event>& maxDelayEvents(fastToSlow ? events2 : events1);
+
+    size_t nEvent = 0;
+    int64_t prevTimestamp = -1;
+    int64_t timestampInterval = 0;
+    for (auto& e : minDelayEvents) {
+        if (e.sensorType == type) {
+            ASSERT_EQ(e.sensorHandle, handle);
+            if (prevTimestamp > 0) {
+                timestampInterval += e.timestamp - prevTimestamp;
+            }
+            prevTimestamp = e.timestamp;
+            ++nEvent;
+        }
+    }
+    ASSERT_GT(nEvent, 2u);
+    minDelayAverageInterval = timestampInterval / (nEvent - 1);
+
+    nEvent = 0;
+    prevTimestamp = -1;
+    timestampInterval = 0;
+    for (auto& e : maxDelayEvents) {
+        if (e.sensorType == type) {
+            ASSERT_EQ(e.sensorHandle, handle);
+            if (prevTimestamp > 0) {
+                timestampInterval += e.timestamp - prevTimestamp;
+            }
+            prevTimestamp = e.timestamp;
+            ++nEvent;
+        }
+    }
+    ASSERT_GT(nEvent, 2u);
+    maxDelayAverageInterval = timestampInterval / (nEvent - 1);
+
+    // change of rate is significant.
+    ALOGI("min/maxDelayAverageInterval = %" PRId64 " %" PRId64, minDelayAverageInterval,
+          maxDelayAverageInterval);
+    EXPECT_GT((maxDelayAverageInterval - minDelayAverageInterval), minDelayAverageInterval / 10);
+
+    // fastest rate sampling time is close to spec
+    EXPECT_LT(std::abs(minDelayAverageInterval - minSamplingPeriodInNs),
+              minSamplingPeriodInNs / 10);
+
+    // slowest rate sampling time is close to spec
+    EXPECT_LT(std::abs(maxDelayAverageInterval - maxSamplingPeriodInNs),
+              maxSamplingPeriodInNs / 10);
+}
+
+void SensorsHidlTestBase::testBatchingOperation(SensorType type) {
+    std::vector<Event> events;
+
+    constexpr int64_t maxBatchingTestTimeNs = 30ull * 1000 * 1000 * 1000;
+    constexpr int64_t oneSecondInNs = 1ull * 1000 * 1000 * 1000;
+
+    SensorInfo sensor = defaultSensorByType(type);
+
+    if (!isValidType(sensor.type)) {
+        // no default sensor of this type
+        return;
+    }
+
+    int32_t handle = sensor.sensorHandle;
+    int64_t minSamplingPeriodInNs = sensor.minDelay * 1000ll;
+    uint32_t minFifoCount = sensor.fifoReservedEventCount;
+    int64_t batchingPeriodInNs = minFifoCount * minSamplingPeriodInNs;
+
+    if (batchingPeriodInNs < oneSecondInNs) {
+        // batching size too small to test reliably
+        return;
+    }
+
+    batchingPeriodInNs = std::min(batchingPeriodInNs, maxBatchingTestTimeNs);
+
+    ALOGI("Test batching for %d ms", (int)(batchingPeriodInNs / 1000 / 1000));
+
+    int64_t allowedBatchDeliverTimeNs = std::max(oneSecondInNs, batchingPeriodInNs / 10);
+
+    ASSERT_EQ(batch(handle, minSamplingPeriodInNs, INT64_MAX), Result::OK);
+    ASSERT_EQ(activate(handle, 1), Result::OK);
+
+    usleep(500000);  // sleep 0.5 sec to wait for initialization
+    ASSERT_EQ(flush(handle), Result::OK);
+
+    // wait for 80% of the reserved batching period
+    // there should not be any significant amount of events
+    // since collection is not enabled all events will go down the drain
+    usleep(batchingPeriodInNs / 1000 * 8 / 10);
+
+    getEnvironment()->setCollection(true);
+    // clean existing collections
+    collectEvents(0 /*timeLimitUs*/, 0 /*nEventLimit*/, true /*clearBeforeStart*/,
+                  false /*change collection*/);
+
+    // 0.8 + 0.2 times the batching period
+    usleep(batchingPeriodInNs / 1000 * 8 / 10);
+    ASSERT_EQ(flush(handle), Result::OK);
+
+    // plus some time for the event to deliver
+    events = collectEvents(allowedBatchDeliverTimeNs / 1000, minFifoCount,
+                           false /*clearBeforeStart*/, false /*change collection*/);
+
+    getEnvironment()->setCollection(false);
+    ASSERT_EQ(activate(handle, 0), Result::OK);
+
+    size_t nEvent = 0;
+    for (auto& e : events) {
+        if (e.sensorType == type && e.sensorHandle == handle) {
+            ++nEvent;
+        }
+    }
+
+    // at least reach 90% of advertised capacity
+    ASSERT_GT(nEvent, (size_t)(minFifoCount * 9 / 10));
+}
diff --git a/sensors/common/vts/utils/SensorsTestSharedMemory.cpp b/sensors/common/vts/utils/SensorsTestSharedMemory.cpp
new file mode 100644
index 0000000..819e297
--- /dev/null
+++ b/sensors/common/vts/utils/SensorsTestSharedMemory.cpp
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SensorsTestSharedMemory.h"
+
+#include <log/log.h>
+
+#include <sys/mman.h>
+#include <cinttypes>
+
+using namespace ::android::hardware::sensors::V1_0;
+
+SharedMemInfo SensorsTestSharedMemory::getSharedMemInfo() const {
+    SharedMemInfo mem = {.type = mType,
+                         .format = SharedMemFormat::SENSORS_EVENT,
+                         .size = static_cast<uint32_t>(mSize),
+                         .memoryHandle = mNativeHandle};
+    return mem;
+}
+
+char* SensorsTestSharedMemory::getBuffer() const {
+    return mBuffer;
+}
+
+size_t SensorsTestSharedMemory::getSize() const {
+    return mSize;
+}
+
+std::vector<Event> SensorsTestSharedMemory::parseEvents(int64_t lastCounter, size_t offset) const {
+    constexpr size_t kEventSize = static_cast<size_t>(SensorsEventFormatOffset::TOTAL_LENGTH);
+    constexpr size_t kOffsetSize = static_cast<size_t>(SensorsEventFormatOffset::SIZE_FIELD);
+    constexpr size_t kOffsetToken = static_cast<size_t>(SensorsEventFormatOffset::REPORT_TOKEN);
+    constexpr size_t kOffsetType = static_cast<size_t>(SensorsEventFormatOffset::SENSOR_TYPE);
+    constexpr size_t kOffsetAtomicCounter =
+        static_cast<size_t>(SensorsEventFormatOffset::ATOMIC_COUNTER);
+    constexpr size_t kOffsetTimestamp = static_cast<size_t>(SensorsEventFormatOffset::TIMESTAMP);
+    constexpr size_t kOffsetData = static_cast<size_t>(SensorsEventFormatOffset::DATA);
+
+    std::vector<Event> events;
+    std::vector<float> data(16);
+
+    while (offset + kEventSize <= mSize) {
+        int64_t atomicCounter =
+            *reinterpret_cast<uint32_t*>(mBuffer + offset + kOffsetAtomicCounter);
+        if (atomicCounter <= lastCounter) {
+            ALOGV("atomicCounter = %" PRId64 ", lastCounter = %" PRId64, atomicCounter,
+                  lastCounter);
+            break;
+        }
+
+        int32_t size = *reinterpret_cast<int32_t*>(mBuffer + offset + kOffsetSize);
+        if (size != kEventSize) {
+            // unknown error, events parsed may be wrong, remove all
+            events.clear();
+            break;
+        }
+
+        int32_t token = *reinterpret_cast<int32_t*>(mBuffer + offset + kOffsetToken);
+        int32_t type = *reinterpret_cast<int32_t*>(mBuffer + offset + kOffsetType);
+        int64_t timestamp = *reinterpret_cast<int64_t*>(mBuffer + offset + kOffsetTimestamp);
+
+        ALOGV("offset = %zu, cnt %" PRId64 ", token %" PRId32 ", type %" PRId32
+              ", timestamp %" PRId64,
+              offset, atomicCounter, token, type, timestamp);
+
+        Event event = {
+            .timestamp = timestamp,
+            .sensorHandle = token,
+            .sensorType = static_cast<SensorType>(type),
+        };
+        event.u.data = android::hardware::hidl_array<float, 16>(
+            reinterpret_cast<float*>(mBuffer + offset + kOffsetData));
+
+        events.push_back(event);
+
+        lastCounter = atomicCounter;
+        offset += kEventSize;
+    }
+
+    return events;
+}
+
+SensorsTestSharedMemory::SensorsTestSharedMemory(SharedMemType type, size_t size)
+    : mType(type), mSize(0), mBuffer(nullptr) {
+    native_handle_t* handle = nullptr;
+    char* buffer = nullptr;
+    switch (type) {
+        case SharedMemType::ASHMEM: {
+            int fd;
+            handle = ::native_handle_create(1 /*nFds*/, 0 /*nInts*/);
+            if (handle != nullptr) {
+                handle->data[0] = fd = ::ashmem_create_region("SensorsTestSharedMemory", size);
+                if (handle->data[0] > 0) {
+                    // memory is pinned by default
+                    buffer = static_cast<char*>(
+                        ::mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
+                    if (buffer != reinterpret_cast<char*>(MAP_FAILED)) {
+                        break;
+                    }
+                    ::native_handle_close(handle);
+                }
+                ::native_handle_delete(handle);
+                handle = nullptr;
+            }
+            break;
+        }
+        case SharedMemType::GRALLOC: {
+            mGrallocWrapper = std::make_unique<::android::GrallocWrapper>();
+            if (mGrallocWrapper->getAllocator() == nullptr ||
+                mGrallocWrapper->getMapper() == nullptr) {
+                break;
+            }
+            using android::hardware::graphics::common::V1_0::BufferUsage;
+            using android::hardware::graphics::common::V1_0::PixelFormat;
+            mapper2::IMapper::BufferDescriptorInfo buf_desc_info = {
+                .width = static_cast<uint32_t>(size),
+                .height = 1,
+                .layerCount = 1,
+                .usage = static_cast<uint64_t>(BufferUsage::SENSOR_DIRECT_DATA |
+                                               BufferUsage::CPU_READ_OFTEN),
+                .format = PixelFormat::BLOB};
+
+            handle = const_cast<native_handle_t*>(mGrallocWrapper->allocate(buf_desc_info));
+            if (handle != nullptr) {
+                mapper2::IMapper::Rect region{0, 0, static_cast<int32_t>(buf_desc_info.width),
+                                              static_cast<int32_t>(buf_desc_info.height)};
+                buffer = static_cast<char*>(
+                    mGrallocWrapper->lock(handle, buf_desc_info.usage, region, /*fence=*/-1));
+                if (buffer != nullptr) {
+                    break;
+                }
+                mGrallocWrapper->freeBuffer(handle);
+                handle = nullptr;
+            }
+            break;
+        }
+        default:
+            break;
+    }
+
+    if (buffer != nullptr) {
+        mNativeHandle = handle;
+        mSize = size;
+        mBuffer = buffer;
+    }
+}
+
+SensorsTestSharedMemory::~SensorsTestSharedMemory() {
+    switch (mType) {
+        case SharedMemType::ASHMEM: {
+            if (mSize != 0) {
+                ::munmap(mBuffer, mSize);
+                mBuffer = nullptr;
+
+                ::native_handle_close(mNativeHandle);
+                ::native_handle_delete(mNativeHandle);
+
+                mNativeHandle = nullptr;
+                mSize = 0;
+            }
+            break;
+        }
+        case SharedMemType::GRALLOC: {
+            if (mSize != 0) {
+                mGrallocWrapper->unlock(mNativeHandle);
+                mGrallocWrapper->freeBuffer(mNativeHandle);
+
+                mNativeHandle = nullptr;
+                mSize = 0;
+            }
+            break;
+        }
+        default: {
+            if (mNativeHandle != nullptr || mSize != 0 || mBuffer != nullptr) {
+                ALOGE(
+                    "SensorsTestSharedMemory %p not properly destructed: "
+                    "type %d, native handle %p, size %zu, buffer %p",
+                    this, static_cast<int>(mType), mNativeHandle, mSize, mBuffer);
+            }
+            break;
+        }
+    }
+}
+
+SensorsTestSharedMemory* SensorsTestSharedMemory::create(SharedMemType type, size_t size) {
+    constexpr size_t kMaxSize = 128 * 1024 * 1024;  // sensor test should not need more than 128M
+    if (size == 0 || size >= kMaxSize) {
+        return nullptr;
+    }
+
+    auto m = new SensorsTestSharedMemory(type, size);
+    if (m->mSize != size || m->mBuffer == nullptr) {
+        delete m;
+        m = nullptr;
+    }
+    return m;
+}
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/GrallocWrapper.h b/sensors/common/vts/utils/include/sensors-vts-utils/GrallocWrapper.h
new file mode 100644
index 0000000..3bd73c3
--- /dev/null
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/GrallocWrapper.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GRALLO_WRAPPER_H_
+#define GRALLO_WRAPPER_H_
+
+#include <unordered_set>
+
+#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+
+namespace allocator2 = ::android::hardware::graphics::allocator::V2_0;
+namespace mapper2 = ::android::hardware::graphics::mapper::V2_0;
+
+namespace android {
+
+// Modified from hardware/interfaces/graphics/mapper/2.0/vts/functional/
+class GrallocWrapper {
+   public:
+    GrallocWrapper();
+    ~GrallocWrapper();
+
+    sp<allocator2::IAllocator> getAllocator() const;
+    sp<mapper2::IMapper> getMapper() const;
+
+    std::string dumpDebugInfo();
+
+    // When import is false, this simply calls IAllocator::allocate. When import
+    // is true, the returned buffers are also imported into the mapper.
+    //
+    // Either case, the returned buffers must be freed with freeBuffer.
+    std::vector<const native_handle_t*> allocate(const mapper2::BufferDescriptor& descriptor,
+                                                 uint32_t count, bool import = true,
+                                                 uint32_t* outStride = nullptr);
+    const native_handle_t* allocate(const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo,
+                                    bool import = true, uint32_t* outStride = nullptr);
+
+    mapper2::BufferDescriptor createDescriptor(
+        const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo);
+
+    const native_handle_t* importBuffer(const hardware::hidl_handle& rawHandle);
+    void freeBuffer(const native_handle_t* bufferHandle);
+
+    // We use fd instead of hardware::hidl_handle in these functions to pass fences
+    // in and out of the mapper.  The ownership of the fd is always transferred
+    // with each of these functions.
+    void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+               const mapper2::IMapper::Rect& accessRegion, int acquireFence);
+
+    int unlock(const native_handle_t* bufferHandle);
+
+   private:
+    void init();
+    const native_handle_t* cloneBuffer(const hardware::hidl_handle& rawHandle);
+
+    sp<allocator2::IAllocator> mAllocator;
+    sp<mapper2::IMapper> mMapper;
+
+    // Keep track of all cloned and imported handles.  When a test fails with
+    // ASSERT_*, the destructor will free the handles for the test.
+    std::unordered_set<const native_handle_t*> mClonedBuffers;
+    std::unordered_set<const native_handle_t*> mImportedBuffers;
+};
+
+}  // namespace android
+#endif  // GRALLO_WRAPPER_H_
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/SensorEventsChecker.h b/sensors/common/vts/utils/include/sensors-vts-utils/SensorEventsChecker.h
new file mode 100644
index 0000000..b5daccc
--- /dev/null
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/SensorEventsChecker.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSOR_EVENTS_CHECKER_H
+#define ANDROID_SENSOR_EVENTS_CHECKER_H
+
+#include <android/hardware/sensors/1.0/types.h>
+
+#include <cmath>
+
+class SensorEventsChecker {
+   public:
+    using Event = ::android::hardware::sensors::V1_0::Event;
+    virtual bool check(const std::vector<Event>& events, std::string* out) const = 0;
+    virtual ~SensorEventsChecker() {}
+};
+
+class NullChecker : public SensorEventsChecker {
+   public:
+    virtual bool check(const std::vector<Event>&, std::string*) const { return true; }
+};
+
+class SensorEventPerEventChecker : public SensorEventsChecker {
+   public:
+    virtual bool checkEvent(const Event& event, std::string* out) const = 0;
+    virtual bool check(const std::vector<Event>& events, std::string* out) const {
+        for (const auto& e : events) {
+            if (!checkEvent(e, out)) {
+                return false;
+            }
+        }
+        return true;
+    }
+};
+
+class Vec3NormChecker : public SensorEventPerEventChecker {
+   public:
+    Vec3NormChecker(float min, float max) : mLowerLimit(min), mUpperLimit(max) {}
+    static Vec3NormChecker byNominal(float nominal, float allowedError) {
+        return Vec3NormChecker(nominal - allowedError, nominal + allowedError);
+    }
+
+    virtual bool checkEvent(const Event& event, std::string* out) const {
+        android::hardware::sensors::V1_0::Vec3 v = event.u.vec3;
+        float norm = std::sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
+        if (norm < mLowerLimit || norm > mUpperLimit) {
+            if (out != nullptr) {
+                std::ostringstream ss;
+                ss << "Event @ " << event.timestamp << " (" << v.x << ", " << v.y << ", " << v.z
+                   << ")"
+                   << " has norm " << norm << ", which is beyond range"
+                   << " [" << mLowerLimit << ", " << mUpperLimit << "]";
+                *out = ss.str();
+            }
+            return false;
+        }
+        return true;
+    }
+
+   protected:
+    float mLowerLimit;
+    float mUpperLimit;
+};
+
+#endif  // ANDROID_SENSOR_EVENTS_CHECKER_H
\ No newline at end of file
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlEnvironmentBase.h b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlEnvironmentBase.h
new file mode 100644
index 0000000..6499fba
--- /dev/null
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlEnvironmentBase.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_HIDL_ENVIRONMENT_BASE_H
+#define ANDROID_SENSORS_HIDL_ENVIRONMENT_BASE_H
+
+#include <VtsHalHidlTargetTestEnvBase.h>
+
+#include <android/hardware/sensors/1.0/types.h>
+
+#include <atomic>
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+class IEventCallback {
+   public:
+    virtual ~IEventCallback() = default;
+    virtual void onEvent(const ::android::hardware::sensors::V1_0::Event& event) = 0;
+};
+
+class SensorsHidlEnvironmentBase : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    using Event = ::android::hardware::sensors::V1_0::Event;
+    virtual void HidlSetUp() override;
+    virtual void HidlTearDown() override;
+
+    // Get and clear all events collected so far (like "cat" shell command).
+    // If output is nullptr, it clears all collected events.
+    void catEvents(std::vector<Event>* output);
+
+    // set sensor event collection status
+    void setCollection(bool enable);
+
+    void registerCallback(IEventCallback* callback);
+    void unregisterCallback();
+
+   protected:
+    SensorsHidlEnvironmentBase() : mCollectionEnabled(false), mCallback(nullptr) {}
+
+    void addEvent(const Event& ev);
+
+    virtual void startPollingThread() = 0;
+    virtual bool resetHal() = 0;
+
+    bool mCollectionEnabled;
+    std::atomic_bool mStopThread;
+    std::thread mPollThread;
+    std::vector<Event> mEvents;
+    std::mutex mEventsMutex;
+
+    IEventCallback* mCallback;
+
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(SensorsHidlEnvironmentBase);
+};
+
+#endif  // ANDROID_SENSORS_HIDL_ENVIRONMENT_BASE_H
\ No newline at end of file
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h
new file mode 100644
index 0000000..6fd9a2b
--- /dev/null
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_HIDL_TEST_BASE_H
+#define ANDROID_SENSORS_HIDL_TEST_BASE_H
+
+#include "sensors-vts-utils/SensorEventsChecker.h"
+#include "sensors-vts-utils/SensorsHidlEnvironmentBase.h"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android/hardware/sensors/1.0/ISensors.h>
+#include <android/hardware/sensors/1.0/types.h>
+
+#include <unordered_set>
+#include <vector>
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::sensors::V1_0::Event;
+using ::android::hardware::sensors::V1_0::ISensors;
+using ::android::hardware::sensors::V1_0::RateLevel;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SensorFlagBits;
+using ::android::hardware::sensors::V1_0::SensorInfo;
+using ::android::hardware::sensors::V1_0::SensorType;
+using ::android::hardware::sensors::V1_0::SharedMemInfo;
+using ::android::hardware::sensors::V1_0::SharedMemType;
+
+class SensorsHidlTestBase : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual SensorsHidlEnvironmentBase* getEnvironment() = 0;
+    virtual void SetUp() override {}
+
+    virtual void TearDown() override {
+        // stop all sensors
+        for (auto s : mSensorHandles) {
+            activate(s, false);
+        }
+        mSensorHandles.clear();
+
+        // stop all direct report and channels
+        for (auto c : mDirectChannelHandles) {
+            // disable all reports
+            configDirectReport(-1, c, RateLevel::STOP, [](auto, auto) {});
+            unregisterDirectChannel(c);
+        }
+        mDirectChannelHandles.clear();
+    }
+
+    // implementation wrapper
+    virtual SensorInfo defaultSensorByType(SensorType type) = 0;
+    virtual Return<void> getSensorsList(ISensors::getSensorsList_cb _hidl_cb) = 0;
+
+    virtual Return<Result> activate(int32_t sensorHandle, bool enabled) = 0;
+
+    virtual Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                                 int64_t maxReportLatencyNs) = 0;
+
+    virtual Return<Result> flush(int32_t sensorHandle) = 0;
+    virtual Return<Result> injectSensorData(const Event& event) = 0;
+    virtual Return<void> registerDirectChannel(const SharedMemInfo& mem,
+                                               ISensors::registerDirectChannel_cb _hidl_cb) = 0;
+    virtual Return<Result> unregisterDirectChannel(int32_t channelHandle) = 0;
+    virtual Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle,
+                                            RateLevel rate,
+                                            ISensors::configDirectReport_cb _hidl_cb) = 0;
+
+    std::vector<Event> collectEvents(useconds_t timeLimitUs, size_t nEventLimit,
+                                     bool clearBeforeStart = true, bool changeCollection = true);
+    static std::vector<Event> collectEvents(useconds_t timeLimitUs, size_t nEventLimit,
+                                            SensorsHidlEnvironmentBase* environment,
+                                            bool clearBeforeStart = true,
+                                            bool changeCollection = true);
+
+    inline static SensorFlagBits extractReportMode(uint64_t flag) {
+        return (SensorFlagBits)(flag & ((uint64_t)SensorFlagBits::CONTINUOUS_MODE |
+                                        (uint64_t)SensorFlagBits::ON_CHANGE_MODE |
+                                        (uint64_t)SensorFlagBits::ONE_SHOT_MODE |
+                                        (uint64_t)SensorFlagBits::SPECIAL_REPORTING_MODE));
+    }
+
+    inline static bool isMetaSensorType(SensorType type) {
+        return (type == SensorType::META_DATA || type == SensorType::DYNAMIC_SENSOR_META ||
+                type == SensorType::ADDITIONAL_INFO);
+    }
+
+    inline static bool isValidType(SensorType type) { return (int32_t)type > 0; }
+
+    void testStreamingOperation(SensorType type, std::chrono::nanoseconds samplingPeriod,
+                                std::chrono::seconds duration, const SensorEventsChecker& checker);
+    void testSamplingRateHotSwitchOperation(SensorType type, bool fastToSlow = true);
+    void testBatchingOperation(SensorType type);
+    void testDirectReportOperation(SensorType type, SharedMemType memType, RateLevel rate,
+                                   const SensorEventsChecker& checker);
+
+    static void assertTypeMatchStringType(SensorType type, const hidl_string& stringType);
+    static void assertTypeMatchReportMode(SensorType type, SensorFlagBits reportMode);
+    static void assertDelayMatchReportMode(int32_t minDelay, int32_t maxDelay,
+                                           SensorFlagBits reportMode);
+    static SensorFlagBits expectedReportModeForType(SensorType type);
+    static bool isDirectReportRateSupported(SensorInfo sensor, RateLevel rate);
+    static bool isDirectChannelTypeSupported(SensorInfo sensor, SharedMemType type);
+
+   protected:
+    // checkers
+    static const Vec3NormChecker sAccelNormChecker;
+    static const Vec3NormChecker sGyroNormChecker;
+
+    // all sensors and direct channnels used
+    std::unordered_set<int32_t> mSensorHandles;
+    std::unordered_set<int32_t> mDirectChannelHandles;
+};
+
+#endif  // ANDROID_SENSORS_HIDL_TEST_BASE_H
\ No newline at end of file
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/SensorsTestSharedMemory.h b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsTestSharedMemory.h
new file mode 100644
index 0000000..002f42c
--- /dev/null
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsTestSharedMemory.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_TEST_SHARED_MEMORY_H
+#define ANDROID_SENSORS_TEST_SHARED_MEMORY_H
+
+#include "GrallocWrapper.h"
+
+#include <android-base/macros.h>
+#include <android/hardware/sensors/1.0/types.h>
+
+#include <cutils/ashmem.h>
+
+class SensorsTestSharedMemory {
+    using SharedMemType = ::android::hardware::sensors::V1_0::SharedMemType;
+    using SharedMemInfo = ::android::hardware::sensors::V1_0::SharedMemInfo;
+    using Event = ::android::hardware::sensors::V1_0::Event;
+
+   public:
+    static SensorsTestSharedMemory* create(SharedMemType type, size_t size);
+    SharedMemInfo getSharedMemInfo() const;
+    char* getBuffer() const;
+    size_t getSize() const;
+    std::vector<Event> parseEvents(int64_t lastCounter = -1, size_t offset = 0) const;
+    virtual ~SensorsTestSharedMemory();
+
+   private:
+    SensorsTestSharedMemory(SharedMemType type, size_t size);
+
+    SharedMemType mType;
+    native_handle_t* mNativeHandle;
+    size_t mSize;
+    char* mBuffer;
+    std::unique_ptr<::android::GrallocWrapper> mGrallocWrapper;
+
+    DISALLOW_COPY_AND_ASSIGN(SensorsTestSharedMemory);
+};
+
+#endif  // ANDROID_SENSORS_TEST_SHARED_MEMORY_H
diff --git a/soundtrigger/2.2/Android.bp b/soundtrigger/2.2/Android.bp
new file mode 100644
index 0000000..0a7c2d8
--- /dev/null
+++ b/soundtrigger/2.2/Android.bp
@@ -0,0 +1,20 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.soundtrigger@2.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "ISoundTriggerHw.hal",
+    ],
+    interfaces: [
+        "android.hardware.audio.common@2.0",
+        "android.hardware.soundtrigger@2.0",
+        "android.hardware.soundtrigger@2.1",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: false,
+}
+
diff --git a/soundtrigger/2.2/ISoundTriggerHw.hal b/soundtrigger/2.2/ISoundTriggerHw.hal
new file mode 100644
index 0000000..a26896a
--- /dev/null
+++ b/soundtrigger/2.2/ISoundTriggerHw.hal
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.soundtrigger@2.2;
+
+import @2.0::SoundModelHandle;
+import @2.1::ISoundTriggerHw;
+
+/**
+ * SoundTrigger HAL interface. Used for hardware recognition of hotwords
+ * and other sounds.
+ */
+interface ISoundTriggerHw extends @2.1::ISoundTriggerHw {
+
+    /**
+     * Get the state of a given model.
+     * The model state is returned asynchronously as a RecognitionEvent via
+     * the callback that was registered in StartRecognition().
+     * @param modelHandle The handle of the sound model whose state is being
+     *                    queried.
+     * @return retval Operation completion status: 0 in case of success,
+     *                -ENOSYS in case of invalid model handle,
+     *                -ENOMEM in case of memory allocation failure,
+     *                -ENODEV in case of initialization error,
+     *                -EINVAL in case where a recognition event is already
+     *                        being processed.
+     */
+    getModelState(SoundModelHandle modelHandle) generates (int32_t retval);
+};
diff --git a/soundtrigger/2.2/default/Android.bp b/soundtrigger/2.2/default/Android.bp
new file mode 100644
index 0000000..78bb69f
--- /dev/null
+++ b/soundtrigger/2.2/default/Android.bp
@@ -0,0 +1,37 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+    name: "android.hardware.soundtrigger@2.2-impl",
+    relative_install_path: "hw",
+    vendor: true,
+    srcs: [
+        "SoundTriggerHw.cpp",
+    ],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libhidlmemory",
+        "libutils",
+        "libhardware",
+        "android.hardware.soundtrigger@2.0",
+        "android.hardware.soundtrigger@2.0-core",
+        "android.hardware.soundtrigger@2.1",
+        "android.hardware.soundtrigger@2.2",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+    ],
+}
diff --git a/soundtrigger/2.2/default/SoundTriggerHw.cpp b/soundtrigger/2.2/default/SoundTriggerHw.cpp
new file mode 100644
index 0000000..4586544
--- /dev/null
+++ b/soundtrigger/2.2/default/SoundTriggerHw.cpp
@@ -0,0 +1,730 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SoundTriggerHw"
+
+#include "SoundTriggerHw.h"
+
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <android/log.h>
+#include <hidlmemory/mapping.h>
+#include <utility>
+
+using android::hardware::hidl_memory;
+using android::hidl::allocator::V1_0::IAllocator;
+using android::hidl::memory::V1_0::IMemory;
+
+namespace android {
+namespace hardware {
+namespace soundtrigger {
+namespace V2_2 {
+namespace implementation {
+
+/**
+ * According to the HIDL C++ Users Guide: client and server implementations
+ * should never directly refer to anything other than the interface header
+ * generated from the HIDL definition file (ie. ISoundTriggerHw.hal), so
+ * this V2_2 implementation copies the V2_0 and V2_1 implementations and
+ * then adds the new V2_2 implementation.
+ */
+
+// Begin V2_0 implementation, copied from
+// hardware/interfaces/soundtrigger/2.0/default/SoundTriggerHalImpl.cpp
+
+// static
+void soundModelCallback_(struct sound_trigger_model_event* halEvent, void* cookie) {
+    if (halEvent == NULL) {
+        ALOGW("soundModelCallback called with NULL event");
+        return;
+    }
+    sp<SoundTriggerHw::SoundModelClient> client =
+        wp<SoundTriggerHw::SoundModelClient>(static_cast<SoundTriggerHw::SoundModelClient*>(cookie))
+            .promote();
+    if (client == 0) {
+        ALOGW("soundModelCallback called on stale client");
+        return;
+    }
+    if (halEvent->model != client->getHalHandle()) {
+        ALOGW("soundModelCallback call with wrong handle %d on client with handle %d",
+              (int)halEvent->model, (int)client->getHalHandle());
+        return;
+    }
+
+    client->soundModelCallback(halEvent);
+}
+
+// static
+void recognitionCallback_(struct sound_trigger_recognition_event* halEvent, void* cookie) {
+    if (halEvent == NULL) {
+        ALOGW("recognitionCallback call NULL event");
+        return;
+    }
+    sp<SoundTriggerHw::SoundModelClient> client =
+        wp<SoundTriggerHw::SoundModelClient>(static_cast<SoundTriggerHw::SoundModelClient*>(cookie))
+            .promote();
+    if (client == 0) {
+        ALOGW("recognitionCallback called on stale client");
+        return;
+    }
+
+    client->recognitionCallback(halEvent);
+}
+
+Return<void> SoundTriggerHw::getProperties(ISoundTriggerHw::getProperties_cb _hidl_cb) {
+    ALOGV("getProperties() mHwDevice %p", mHwDevice);
+    int ret;
+    struct sound_trigger_properties halProperties;
+    ISoundTriggerHw::Properties properties;
+
+    if (mHwDevice == NULL) {
+        ret = -ENODEV;
+        goto exit;
+    }
+
+    ret = mHwDevice->get_properties(mHwDevice, &halProperties);
+
+    convertPropertiesFromHal(&properties, &halProperties);
+
+    ALOGV("getProperties implementor %s recognitionModes %08x", properties.implementor.c_str(),
+          properties.recognitionModes);
+
+exit:
+    _hidl_cb(ret, properties);
+    return Void();
+}
+
+int SoundTriggerHw::doLoadSoundModel(const V2_0::ISoundTriggerHw::SoundModel& soundModel,
+                                     sp<SoundTriggerHw::SoundModelClient> client) {
+    int32_t ret = 0;
+    struct sound_trigger_sound_model* halSoundModel;
+
+    ALOGV("doLoadSoundModel() data size %zu", soundModel.data.size());
+
+    if (mHwDevice == NULL) {
+        ret = -ENODEV;
+        goto exit;
+    }
+
+    halSoundModel = convertSoundModelToHal(&soundModel);
+    if (halSoundModel == NULL) {
+        ret = -EINVAL;
+        goto exit;
+    }
+
+    sound_model_handle_t halHandle;
+    ret = mHwDevice->load_sound_model(mHwDevice, halSoundModel, soundModelCallback_, client.get(),
+                                      &halHandle);
+
+    free(halSoundModel);
+
+    if (ret != 0) {
+        goto exit;
+    }
+
+    client->setHalHandle(halHandle);
+    {
+        AutoMutex lock(mLock);
+        mClients.add(client->getId(), client);
+    }
+
+exit:
+    return ret;
+}
+
+Return<void> SoundTriggerHw::loadSoundModel(const V2_0::ISoundTriggerHw::SoundModel& soundModel,
+                                            const sp<V2_0::ISoundTriggerHwCallback>& callback,
+                                            V2_0::ISoundTriggerHwCallback::CallbackCookie cookie,
+                                            ISoundTriggerHw::loadSoundModel_cb _hidl_cb) {
+    sp<SoundTriggerHw::SoundModelClient> client =
+        new SoundModelClient_2_0(nextUniqueModelId(), cookie, callback);
+    _hidl_cb(doLoadSoundModel(soundModel, client), client->getId());
+    return Void();
+}
+
+Return<void> SoundTriggerHw::loadPhraseSoundModel(
+    const V2_0::ISoundTriggerHw::PhraseSoundModel& soundModel,
+    const sp<V2_0::ISoundTriggerHwCallback>& callback,
+    V2_0::ISoundTriggerHwCallback::CallbackCookie cookie,
+    ISoundTriggerHw::loadPhraseSoundModel_cb _hidl_cb) {
+    sp<SoundTriggerHw::SoundModelClient> client =
+        new SoundModelClient_2_0(nextUniqueModelId(), cookie, callback);
+    _hidl_cb(doLoadSoundModel((const V2_0::ISoundTriggerHw::SoundModel&)soundModel, client),
+             client->getId());
+    return Void();
+}
+
+Return<int32_t> SoundTriggerHw::unloadSoundModel(int32_t modelHandle) {
+    int32_t ret;
+    sp<SoundTriggerHw::SoundModelClient> client;
+
+    if (mHwDevice == NULL) {
+        ret = -ENODEV;
+        goto exit;
+    }
+
+    {
+        AutoMutex lock(mLock);
+        client = mClients.valueFor(modelHandle);
+        if (client == 0) {
+            ret = -ENOSYS;
+            goto exit;
+        }
+    }
+
+    ret = mHwDevice->unload_sound_model(mHwDevice, client->getHalHandle());
+
+    mClients.removeItem(modelHandle);
+
+exit:
+    return ret;
+}
+
+Return<int32_t> SoundTriggerHw::startRecognition(
+    int32_t modelHandle, const V2_0::ISoundTriggerHw::RecognitionConfig& config,
+    const sp<V2_0::ISoundTriggerHwCallback>& /* callback */, int32_t /* cookie */) {
+    int32_t ret;
+    sp<SoundTriggerHw::SoundModelClient> client;
+    struct sound_trigger_recognition_config* halConfig;
+
+    if (mHwDevice == NULL) {
+        ret = -ENODEV;
+        goto exit;
+    }
+
+    {
+        AutoMutex lock(mLock);
+        client = mClients.valueFor(modelHandle);
+        if (client == 0) {
+            ret = -ENOSYS;
+            goto exit;
+        }
+    }
+
+    halConfig =
+        convertRecognitionConfigToHal((const V2_0::ISoundTriggerHw::RecognitionConfig*)&config);
+
+    if (halConfig == NULL) {
+        ret = -EINVAL;
+        goto exit;
+    }
+    ret = mHwDevice->start_recognition(mHwDevice, client->getHalHandle(), halConfig,
+                                       recognitionCallback_, client.get());
+
+    free(halConfig);
+
+exit:
+    return ret;
+}
+
+Return<int32_t> SoundTriggerHw::stopRecognition(int32_t modelHandle) {
+    int32_t ret;
+    sp<SoundTriggerHw::SoundModelClient> client;
+    if (mHwDevice == NULL) {
+        ret = -ENODEV;
+        goto exit;
+    }
+
+    {
+        AutoMutex lock(mLock);
+        client = mClients.valueFor(modelHandle);
+        if (client == 0) {
+            ret = -ENOSYS;
+            goto exit;
+        }
+    }
+
+    ret = mHwDevice->stop_recognition(mHwDevice, client->getHalHandle());
+
+exit:
+    return ret;
+}
+
+Return<int32_t> SoundTriggerHw::stopAllRecognitions() {
+    int32_t ret;
+    if (mHwDevice == NULL) {
+        ret = -ENODEV;
+        goto exit;
+    }
+
+    if (mHwDevice->common.version >= SOUND_TRIGGER_DEVICE_API_VERSION_1_1 &&
+        mHwDevice->stop_all_recognitions) {
+        ret = mHwDevice->stop_all_recognitions(mHwDevice);
+    } else {
+        ret = -ENOSYS;
+    }
+exit:
+    return ret;
+}
+
+SoundTriggerHw::SoundTriggerHw() : mModuleName("primary"), mHwDevice(NULL), mNextModelId(1) {}
+
+void SoundTriggerHw::onFirstRef() {
+    const hw_module_t* mod;
+    int rc;
+
+    rc = hw_get_module_by_class(SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, &mod);
+    if (rc != 0) {
+        ALOGE("couldn't load sound trigger module %s.%s (%s)", SOUND_TRIGGER_HARDWARE_MODULE_ID,
+              mModuleName, strerror(-rc));
+        return;
+    }
+    rc = sound_trigger_hw_device_open(mod, &mHwDevice);
+    if (rc != 0) {
+        ALOGE("couldn't open sound trigger hw device in %s.%s (%s)",
+              SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, strerror(-rc));
+        mHwDevice = NULL;
+        return;
+    }
+    if (mHwDevice->common.version < SOUND_TRIGGER_DEVICE_API_VERSION_1_0 ||
+        mHwDevice->common.version > SOUND_TRIGGER_DEVICE_API_VERSION_CURRENT) {
+        ALOGE("wrong sound trigger hw device version %04x", mHwDevice->common.version);
+        sound_trigger_hw_device_close(mHwDevice);
+        mHwDevice = NULL;
+        return;
+    }
+
+    ALOGI("onFirstRef() mModuleName %s mHwDevice %p", mModuleName, mHwDevice);
+}
+
+SoundTriggerHw::~SoundTriggerHw() {
+    if (mHwDevice != NULL) {
+        sound_trigger_hw_device_close(mHwDevice);
+    }
+}
+
+uint32_t SoundTriggerHw::nextUniqueModelId() {
+    uint32_t modelId = 0;
+    {
+        AutoMutex lock(mLock);
+        do {
+            modelId =
+                atomic_fetch_add_explicit(&mNextModelId, (uint_fast32_t)1, memory_order_acq_rel);
+        } while (mClients.valueFor(modelId) != 0 && modelId != 0);
+    }
+    LOG_ALWAYS_FATAL_IF(modelId == 0, "wrap around in sound model IDs, num loaded models %zu",
+                        mClients.size());
+    return modelId;
+}
+
+void SoundTriggerHw::convertUuidFromHal(Uuid* uuid, const sound_trigger_uuid_t* halUuid) {
+    uuid->timeLow = halUuid->timeLow;
+    uuid->timeMid = halUuid->timeMid;
+    uuid->versionAndTimeHigh = halUuid->timeHiAndVersion;
+    uuid->variantAndClockSeqHigh = halUuid->clockSeq;
+    memcpy(&uuid->node[0], &halUuid->node[0], 6);
+}
+
+void SoundTriggerHw::convertUuidToHal(sound_trigger_uuid_t* halUuid, const Uuid* uuid) {
+    halUuid->timeLow = uuid->timeLow;
+    halUuid->timeMid = uuid->timeMid;
+    halUuid->timeHiAndVersion = uuid->versionAndTimeHigh;
+    halUuid->clockSeq = uuid->variantAndClockSeqHigh;
+    memcpy(&halUuid->node[0], &uuid->node[0], 6);
+}
+
+void SoundTriggerHw::convertPropertiesFromHal(
+    ISoundTriggerHw::Properties* properties, const struct sound_trigger_properties* halProperties) {
+    properties->implementor = halProperties->implementor;
+    properties->description = halProperties->description;
+    properties->version = halProperties->version;
+    convertUuidFromHal(&properties->uuid, &halProperties->uuid);
+    properties->maxSoundModels = halProperties->max_sound_models;
+    properties->maxKeyPhrases = halProperties->max_key_phrases;
+    properties->maxUsers = halProperties->max_users;
+    properties->recognitionModes = halProperties->recognition_modes;
+    properties->captureTransition = halProperties->capture_transition;
+    properties->maxBufferMs = halProperties->max_buffer_ms;
+    properties->concurrentCapture = halProperties->concurrent_capture;
+    properties->triggerInEvent = halProperties->trigger_in_event;
+    properties->powerConsumptionMw = halProperties->power_consumption_mw;
+}
+
+void SoundTriggerHw::convertTriggerPhraseToHal(struct sound_trigger_phrase* halTriggerPhrase,
+                                               const ISoundTriggerHw::Phrase* triggerPhrase) {
+    halTriggerPhrase->id = triggerPhrase->id;
+    halTriggerPhrase->recognition_mode = triggerPhrase->recognitionModes;
+    unsigned int i;
+
+    halTriggerPhrase->num_users =
+        std::min((int)triggerPhrase->users.size(), SOUND_TRIGGER_MAX_USERS);
+    for (i = 0; i < halTriggerPhrase->num_users; i++) {
+        halTriggerPhrase->users[i] = triggerPhrase->users[i];
+    }
+
+    strlcpy(halTriggerPhrase->locale, triggerPhrase->locale.c_str(), SOUND_TRIGGER_MAX_LOCALE_LEN);
+    strlcpy(halTriggerPhrase->text, triggerPhrase->text.c_str(), SOUND_TRIGGER_MAX_STRING_LEN);
+}
+
+struct sound_trigger_sound_model* SoundTriggerHw::convertSoundModelToHal(
+    const V2_0::ISoundTriggerHw::SoundModel* soundModel) {
+    struct sound_trigger_sound_model* halModel = NULL;
+    if (soundModel->type == V2_0::SoundModelType::KEYPHRASE) {
+        size_t allocSize =
+            sizeof(struct sound_trigger_phrase_sound_model) + soundModel->data.size();
+        struct sound_trigger_phrase_sound_model* halKeyPhraseModel =
+            static_cast<struct sound_trigger_phrase_sound_model*>(malloc(allocSize));
+        LOG_ALWAYS_FATAL_IF(halKeyPhraseModel == NULL,
+                            "malloc failed for size %zu in convertSoundModelToHal PHRASE",
+                            allocSize);
+
+        const V2_0::ISoundTriggerHw::PhraseSoundModel* keyPhraseModel =
+            reinterpret_cast<const V2_0::ISoundTriggerHw::PhraseSoundModel*>(soundModel);
+
+        size_t i;
+        for (i = 0; i < keyPhraseModel->phrases.size() && i < SOUND_TRIGGER_MAX_PHRASES; i++) {
+            convertTriggerPhraseToHal(&halKeyPhraseModel->phrases[i], &keyPhraseModel->phrases[i]);
+        }
+        halKeyPhraseModel->num_phrases = (unsigned int)i;
+        halModel = reinterpret_cast<struct sound_trigger_sound_model*>(halKeyPhraseModel);
+        halModel->data_offset = sizeof(struct sound_trigger_phrase_sound_model);
+    } else {
+        size_t allocSize = sizeof(struct sound_trigger_sound_model) + soundModel->data.size();
+        halModel = static_cast<struct sound_trigger_sound_model*>(malloc(allocSize));
+        LOG_ALWAYS_FATAL_IF(halModel == NULL,
+                            "malloc failed for size %zu in convertSoundModelToHal GENERIC",
+                            allocSize);
+
+        halModel->data_offset = sizeof(struct sound_trigger_sound_model);
+    }
+    halModel->type = (sound_trigger_sound_model_type_t)soundModel->type;
+    convertUuidToHal(&halModel->uuid, &soundModel->uuid);
+    convertUuidToHal(&halModel->vendor_uuid, &soundModel->vendorUuid);
+    halModel->data_size = soundModel->data.size();
+    uint8_t* dst = reinterpret_cast<uint8_t*>(halModel) + halModel->data_offset;
+    const uint8_t* src = reinterpret_cast<const uint8_t*>(&soundModel->data[0]);
+    memcpy(dst, src, soundModel->data.size());
+
+    return halModel;
+}
+
+void SoundTriggerHw::convertPhraseRecognitionExtraToHal(
+    struct sound_trigger_phrase_recognition_extra* halExtra,
+    const V2_0::PhraseRecognitionExtra* extra) {
+    halExtra->id = extra->id;
+    halExtra->recognition_modes = extra->recognitionModes;
+    halExtra->confidence_level = extra->confidenceLevel;
+
+    unsigned int i;
+    for (i = 0; i < extra->levels.size() && i < SOUND_TRIGGER_MAX_USERS; i++) {
+        halExtra->levels[i].user_id = extra->levels[i].userId;
+        halExtra->levels[i].level = extra->levels[i].levelPercent;
+    }
+    halExtra->num_levels = i;
+}
+
+struct sound_trigger_recognition_config* SoundTriggerHw::convertRecognitionConfigToHal(
+    const V2_0::ISoundTriggerHw::RecognitionConfig* config) {
+    size_t allocSize = sizeof(struct sound_trigger_recognition_config) + config->data.size();
+    struct sound_trigger_recognition_config* halConfig =
+        static_cast<struct sound_trigger_recognition_config*>(malloc(allocSize));
+
+    LOG_ALWAYS_FATAL_IF(halConfig == NULL,
+                        "malloc failed for size %zu in convertRecognitionConfigToHal", allocSize);
+
+    halConfig->capture_handle = (audio_io_handle_t)config->captureHandle;
+    halConfig->capture_device = (audio_devices_t)config->captureDevice;
+    halConfig->capture_requested = config->captureRequested;
+
+    unsigned int i;
+    for (i = 0; i < config->phrases.size() && i < SOUND_TRIGGER_MAX_PHRASES; i++) {
+        convertPhraseRecognitionExtraToHal(&halConfig->phrases[i], &config->phrases[i]);
+    }
+    halConfig->num_phrases = i;
+
+    halConfig->data_offset = sizeof(struct sound_trigger_recognition_config);
+    halConfig->data_size = config->data.size();
+    uint8_t* dst = reinterpret_cast<uint8_t*>(halConfig) + halConfig->data_offset;
+    const uint8_t* src = reinterpret_cast<const uint8_t*>(&config->data[0]);
+    memcpy(dst, src, config->data.size());
+    return halConfig;
+}
+
+// static
+void SoundTriggerHw::convertSoundModelEventFromHal(
+    V2_0::ISoundTriggerHwCallback::ModelEvent* event,
+    const struct sound_trigger_model_event* halEvent) {
+    event->status = (V2_0::ISoundTriggerHwCallback::SoundModelStatus)halEvent->status;
+    // event->model to be remapped by called
+    event->data.setToExternal(
+        const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(halEvent)) + halEvent->data_offset,
+        halEvent->data_size);
+}
+
+// static
+void SoundTriggerHw::convertPhaseRecognitionEventFromHal(
+    V2_0::ISoundTriggerHwCallback::PhraseRecognitionEvent* event,
+    const struct sound_trigger_phrase_recognition_event* halEvent) {
+    event->phraseExtras.resize(halEvent->num_phrases);
+    for (unsigned int i = 0; i < halEvent->num_phrases; i++) {
+        convertPhraseRecognitionExtraFromHal(&event->phraseExtras[i], &halEvent->phrase_extras[i]);
+    }
+    convertRecognitionEventFromHal(&event->common, &halEvent->common);
+}
+
+// static
+void SoundTriggerHw::convertRecognitionEventFromHal(
+    V2_0::ISoundTriggerHwCallback::RecognitionEvent* event,
+    const struct sound_trigger_recognition_event* halEvent) {
+    event->status = static_cast<V2_0::ISoundTriggerHwCallback::RecognitionStatus>(halEvent->status);
+    event->type = static_cast<V2_0::SoundModelType>(halEvent->type);
+    // event->model to be remapped by called
+    event->captureAvailable = halEvent->capture_available;
+    event->captureSession = halEvent->capture_session;
+    event->captureDelayMs = halEvent->capture_delay_ms;
+    event->capturePreambleMs = halEvent->capture_preamble_ms;
+    event->triggerInData = halEvent->trigger_in_data;
+    event->audioConfig.sampleRateHz = halEvent->audio_config.sample_rate;
+    event->audioConfig.channelMask =
+        (audio::common::V2_0::AudioChannelMask)halEvent->audio_config.channel_mask;
+    event->audioConfig.format = (audio::common::V2_0::AudioFormat)halEvent->audio_config.format;
+    event->data.setToExternal(
+        const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(halEvent)) + halEvent->data_offset,
+        halEvent->data_size);
+}
+
+// static
+void SoundTriggerHw::convertPhraseRecognitionExtraFromHal(
+    V2_0::PhraseRecognitionExtra* extra,
+    const struct sound_trigger_phrase_recognition_extra* halExtra) {
+    extra->id = halExtra->id;
+    extra->recognitionModes = halExtra->recognition_modes;
+    extra->confidenceLevel = halExtra->confidence_level;
+
+    extra->levels.resize(halExtra->num_levels);
+    for (unsigned int i = 0; i < halExtra->num_levels; i++) {
+        extra->levels[i].userId = halExtra->levels[i].user_id;
+        extra->levels[i].levelPercent = halExtra->levels[i].level;
+    }
+}
+
+void SoundTriggerHw::SoundModelClient_2_0::recognitionCallback(
+    struct sound_trigger_recognition_event* halEvent) {
+    if (halEvent->type == SOUND_MODEL_TYPE_KEYPHRASE) {
+        V2_0::ISoundTriggerHwCallback::PhraseRecognitionEvent event;
+        convertPhaseRecognitionEventFromHal(
+            &event, reinterpret_cast<sound_trigger_phrase_recognition_event*>(halEvent));
+        event.common.model = mId;
+        mCallback->phraseRecognitionCallback(event, mCookie);
+    } else {
+        V2_0::ISoundTriggerHwCallback::RecognitionEvent event;
+        convertRecognitionEventFromHal(&event, halEvent);
+        event.model = mId;
+        mCallback->recognitionCallback(event, mCookie);
+    }
+}
+
+void SoundTriggerHw::SoundModelClient_2_0::soundModelCallback(
+    struct sound_trigger_model_event* halEvent) {
+    V2_0::ISoundTriggerHwCallback::ModelEvent event;
+    convertSoundModelEventFromHal(&event, halEvent);
+    event.model = mId;
+    mCallback->soundModelCallback(event, mCookie);
+}
+
+// Begin V2_1 implementation, copied from
+// hardware/interfaces/soundtrigger/2.1/default/SoundTriggerHw.cpp
+
+namespace {
+
+// Backs up by the vector with the contents of shared memory.
+// It is assumed that the passed hidl_vector is empty, so it's
+// not cleared if the memory is a null object.
+// The caller needs to keep the returned sp<IMemory> as long as
+// the data is needed.
+std::pair<bool, sp<IMemory>> memoryAsVector(const hidl_memory& m, hidl_vec<uint8_t>* vec) {
+    sp<IMemory> memory;
+    if (m.size() == 0) {
+        return std::make_pair(true, memory);
+    }
+    memory = mapMemory(m);
+    if (memory != nullptr) {
+        memory->read();
+        vec->setToExternal(static_cast<uint8_t*>(static_cast<void*>(memory->getPointer())),
+                           memory->getSize());
+        return std::make_pair(true, memory);
+    }
+    ALOGE("%s: Could not map HIDL memory to IMemory", __func__);
+    return std::make_pair(false, memory);
+}
+
+// Moves the data from the vector into allocated shared memory,
+// emptying the vector.
+// It is assumed that the passed hidl_memory is a null object, so it's
+// not reset if the vector is empty.
+// The caller needs to keep the returned sp<IMemory> as long as
+// the data is needed.
+std::pair<bool, sp<IMemory>> moveVectorToMemory(hidl_vec<uint8_t>* v, hidl_memory* mem) {
+    sp<IMemory> memory;
+    if (v->size() == 0) {
+        return std::make_pair(true, memory);
+    }
+    sp<IAllocator> ashmem = IAllocator::getService("ashmem");
+    if (ashmem == 0) {
+        ALOGE("Failed to retrieve ashmem allocator service");
+        return std::make_pair(false, memory);
+    }
+    bool success = false;
+    Return<void> r = ashmem->allocate(v->size(), [&](bool s, const hidl_memory& m) {
+        success = s;
+        if (success) *mem = m;
+    });
+    if (r.isOk() && success) {
+        memory = hardware::mapMemory(*mem);
+        if (memory != 0) {
+            memory->update();
+            memcpy(memory->getPointer(), v->data(), v->size());
+            memory->commit();
+            v->resize(0);
+            return std::make_pair(true, memory);
+        } else {
+            ALOGE("Failed to map allocated ashmem");
+        }
+    } else {
+        ALOGE("Failed to allocate %llu bytes from ashmem", (unsigned long long)v->size());
+    }
+    return std::make_pair(false, memory);
+}
+
+}  // namespace
+
+Return<void> SoundTriggerHw::loadSoundModel_2_1(
+    const V2_1::ISoundTriggerHw::SoundModel& soundModel,
+    const sp<V2_1::ISoundTriggerHwCallback>& callback, int32_t cookie,
+    V2_1::ISoundTriggerHw::loadSoundModel_2_1_cb _hidl_cb) {
+    // It is assumed that legacy data vector is empty, thus making copy is cheap.
+    V2_0::ISoundTriggerHw::SoundModel soundModel_2_0(soundModel.header);
+    auto result = memoryAsVector(soundModel.data, &soundModel_2_0.data);
+    if (result.first) {
+        sp<SoundModelClient> client =
+            new SoundModelClient_2_1(nextUniqueModelId(), cookie, callback);
+        _hidl_cb(doLoadSoundModel(soundModel_2_0, client), client->getId());
+        return Void();
+    }
+    _hidl_cb(-ENOMEM, 0);
+    return Void();
+}
+
+Return<void> SoundTriggerHw::loadPhraseSoundModel_2_1(
+    const V2_1::ISoundTriggerHw::PhraseSoundModel& soundModel,
+    const sp<V2_1::ISoundTriggerHwCallback>& callback, int32_t cookie,
+    V2_1::ISoundTriggerHw::loadPhraseSoundModel_2_1_cb _hidl_cb) {
+    V2_0::ISoundTriggerHw::PhraseSoundModel soundModel_2_0;
+    // It is assumed that legacy data vector is empty, thus making copy is cheap.
+    soundModel_2_0.common = soundModel.common.header;
+    // Avoid copying phrases data.
+    soundModel_2_0.phrases.setToExternal(
+        const_cast<V2_0::ISoundTriggerHw::Phrase*>(soundModel.phrases.data()),
+        soundModel.phrases.size());
+    auto result = memoryAsVector(soundModel.common.data, &soundModel_2_0.common.data);
+    if (result.first) {
+        sp<SoundModelClient> client =
+            new SoundModelClient_2_1(nextUniqueModelId(), cookie, callback);
+        _hidl_cb(doLoadSoundModel((const V2_0::ISoundTriggerHw::SoundModel&)soundModel_2_0, client),
+                 client->getId());
+        return Void();
+    }
+    _hidl_cb(-ENOMEM, 0);
+    return Void();
+}
+
+Return<int32_t> SoundTriggerHw::startRecognition_2_1(
+    int32_t modelHandle, const V2_1::ISoundTriggerHw::RecognitionConfig& config,
+    const sp<V2_1::ISoundTriggerHwCallback>& callback, int32_t cookie) {
+    // It is assumed that legacy data vector is empty, thus making copy is cheap.
+    V2_0::ISoundTriggerHw::RecognitionConfig config_2_0(config.header);
+    auto result = memoryAsVector(config.data, &config_2_0.data);
+    return result.first ? startRecognition(modelHandle, config_2_0, callback, cookie)
+                        : Return<int32_t>(-ENOMEM);
+}
+
+void SoundTriggerHw::SoundModelClient_2_1::recognitionCallback(
+    struct sound_trigger_recognition_event* halEvent) {
+    if (halEvent->type == SOUND_MODEL_TYPE_KEYPHRASE) {
+        V2_0::ISoundTriggerHwCallback::PhraseRecognitionEvent event_2_0;
+        convertPhaseRecognitionEventFromHal(
+            &event_2_0, reinterpret_cast<sound_trigger_phrase_recognition_event*>(halEvent));
+        event_2_0.common.model = mId;
+        V2_1::ISoundTriggerHwCallback::PhraseRecognitionEvent event;
+        event.phraseExtras.setToExternal(event_2_0.phraseExtras.data(),
+                                         event_2_0.phraseExtras.size());
+        auto result = moveVectorToMemory(&event_2_0.common.data, &event.common.data);
+        if (result.first) {
+            // The data vector is now empty, thus copying is cheap.
+            event.common.header = event_2_0.common;
+            mCallback->phraseRecognitionCallback_2_1(event, mCookie);
+        }
+    } else {
+        V2_1::ISoundTriggerHwCallback::RecognitionEvent event;
+        convertRecognitionEventFromHal(&event.header, halEvent);
+        event.header.model = mId;
+        auto result = moveVectorToMemory(&event.header.data, &event.data);
+        if (result.first) {
+            mCallback->recognitionCallback_2_1(event, mCookie);
+        }
+    }
+}
+
+void SoundTriggerHw::SoundModelClient_2_1::soundModelCallback(
+    struct sound_trigger_model_event* halEvent) {
+    V2_1::ISoundTriggerHwCallback::ModelEvent event;
+    convertSoundModelEventFromHal(&event.header, halEvent);
+    event.header.model = mId;
+    auto result = moveVectorToMemory(&event.header.data, &event.data);
+    if (result.first) {
+        mCallback->soundModelCallback_2_1(event, mCookie);
+    }
+}
+
+// Begin V2_2 implementation
+
+Return<int32_t> SoundTriggerHw::getModelState(int32_t modelHandle) {
+    sp<SoundModelClient> client;
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+
+    {
+        AutoMutex lock(mLock);
+        client = mClients.valueFor(modelHandle);
+        if (client == 0) {
+            return -ENOSYS;
+        }
+    }
+
+    if (mHwDevice->common.version < SOUND_TRIGGER_DEVICE_API_VERSION_1_2) {
+        ALOGE("Get model state not supported");
+        return -ENODEV;
+    }
+
+    if (mHwDevice->get_model_state == NULL) {
+        ALOGE("Failed to get model state from device, no such method");
+        return -ENODEV;
+    }
+
+    return mHwDevice->get_model_state(mHwDevice, client->getHalHandle());
+}
+
+// Methods from ::android::hidl::base::V1_0::IBase follow.
+
+ISoundTriggerHw* HIDL_FETCH_ISoundTriggerHw(const char* /* name */) {
+    return new SoundTriggerHw();
+}
+
+}  // namespace implementation
+}  // namespace V2_2
+}  // namespace soundtrigger
+}  // namespace hardware
+}  // namespace android
diff --git a/soundtrigger/2.2/default/SoundTriggerHw.h b/soundtrigger/2.2/default/SoundTriggerHw.h
new file mode 100644
index 0000000..6676318
--- /dev/null
+++ b/soundtrigger/2.2/default/SoundTriggerHw.h
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_V2_2_SOUNDTRIGGERHW_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_V2_2_SOUNDTRIGGERHW_H
+
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHw.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHwCallback.h>
+#include <android/hardware/soundtrigger/2.2/ISoundTriggerHw.h>
+#include <hardware/sound_trigger.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <stdatomic.h>
+#include <system/sound_trigger.h>
+#include <utils/KeyedVector.h>
+#include <utils/threads.h>
+
+namespace android {
+namespace hardware {
+namespace soundtrigger {
+namespace V2_2 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::audio::common::V2_0::Uuid;
+using ::android::hardware::soundtrigger::V2_0::ISoundTriggerHwCallback;
+
+/**
+ * According to the HIDL C++ Users Guide: client and server implementations
+ * should never directly refer to anything other than the interface header
+ * generated from the HIDL definition file (ie. ISoundTriggerHw.hal), so
+ * this V2_2 implementation copies the V2_0 and V2_1 implementations and
+ * then adds the new V2_2 implementation.
+ */
+struct SoundTriggerHw : public ISoundTriggerHw {
+    // Methods from V2_0::ISoundTriggerHw follow.
+    Return<void> getProperties(getProperties_cb _hidl_cb) override;
+    Return<void> loadSoundModel(const V2_0::ISoundTriggerHw::SoundModel& soundModel,
+                                const sp<V2_0::ISoundTriggerHwCallback>& callback, int32_t cookie,
+                                loadSoundModel_cb _hidl_cb) override;
+    Return<void> loadPhraseSoundModel(const V2_0::ISoundTriggerHw::PhraseSoundModel& soundModel,
+                                      const sp<V2_0::ISoundTriggerHwCallback>& callback,
+                                      int32_t cookie, loadPhraseSoundModel_cb _hidl_cb) override;
+    Return<int32_t> unloadSoundModel(int32_t modelHandle) override;
+    Return<int32_t> startRecognition(int32_t modelHandle,
+                                     const V2_0::ISoundTriggerHw::RecognitionConfig& config,
+                                     const sp<V2_0::ISoundTriggerHwCallback>& callback,
+                                     int32_t cookie) override;
+    Return<int32_t> stopRecognition(int32_t modelHandle) override;
+    Return<int32_t> stopAllRecognitions() override;
+
+    // Methods from V2_1::ISoundTriggerHw follow.
+    Return<void> loadSoundModel_2_1(const V2_1::ISoundTriggerHw::SoundModel& soundModel,
+                                    const sp<V2_1::ISoundTriggerHwCallback>& callback,
+                                    int32_t cookie, loadSoundModel_2_1_cb _hidl_cb) override;
+    Return<void> loadPhraseSoundModel_2_1(const V2_1::ISoundTriggerHw::PhraseSoundModel& soundModel,
+                                          const sp<V2_1::ISoundTriggerHwCallback>& callback,
+                                          int32_t cookie,
+                                          loadPhraseSoundModel_2_1_cb _hidl_cb) override;
+    Return<int32_t> startRecognition_2_1(int32_t modelHandle,
+                                         const V2_1::ISoundTriggerHw::RecognitionConfig& config,
+                                         const sp<V2_1::ISoundTriggerHwCallback>& callback,
+                                         int32_t cookie) override;
+
+    // Methods from V2_2::ISoundTriggerHw follow.
+    Return<int32_t> getModelState(int32_t modelHandle) override;
+
+    SoundTriggerHw();
+
+    // Copied from hardware/interfaces/soundtrigger/2.0/default/SoundTriggerHalImpl.h
+    class SoundModelClient : public RefBase {
+       public:
+        SoundModelClient(uint32_t id, V2_0::ISoundTriggerHwCallback::CallbackCookie cookie)
+            : mId(id), mCookie(cookie) {}
+        virtual ~SoundModelClient() {}
+
+        uint32_t getId() const { return mId; }
+        sound_model_handle_t getHalHandle() const { return mHalHandle; }
+        void setHalHandle(sound_model_handle_t handle) { mHalHandle = handle; }
+
+        virtual void recognitionCallback(struct sound_trigger_recognition_event* halEvent) = 0;
+        virtual void soundModelCallback(struct sound_trigger_model_event* halEvent) = 0;
+
+       protected:
+        const uint32_t mId;
+        sound_model_handle_t mHalHandle;
+        V2_0::ISoundTriggerHwCallback::CallbackCookie mCookie;
+    };
+
+   protected:
+    static void convertPhaseRecognitionEventFromHal(
+        V2_0::ISoundTriggerHwCallback::PhraseRecognitionEvent* event,
+        const struct sound_trigger_phrase_recognition_event* halEvent);
+    static void convertRecognitionEventFromHal(
+        V2_0::ISoundTriggerHwCallback::RecognitionEvent* event,
+        const struct sound_trigger_recognition_event* halEvent);
+    static void convertSoundModelEventFromHal(V2_0::ISoundTriggerHwCallback::ModelEvent* event,
+                                              const struct sound_trigger_model_event* halEvent);
+
+    virtual ~SoundTriggerHw();
+
+    uint32_t nextUniqueModelId();
+    int doLoadSoundModel(const V2_0::ISoundTriggerHw::SoundModel& soundModel,
+                         sp<SoundModelClient> client);
+
+    // RefBase
+    void onFirstRef() override;
+
+   private:
+    class SoundModelClient_2_0 : public SoundModelClient {
+       public:
+        SoundModelClient_2_0(uint32_t id, V2_0::ISoundTriggerHwCallback::CallbackCookie cookie,
+                             sp<V2_0::ISoundTriggerHwCallback> callback)
+            : SoundModelClient(id, cookie), mCallback(callback) {}
+
+        void recognitionCallback(struct sound_trigger_recognition_event* halEvent) override;
+        void soundModelCallback(struct sound_trigger_model_event* halEvent) override;
+
+       private:
+        sp<V2_0::ISoundTriggerHwCallback> mCallback;
+    };
+
+    void convertUuidFromHal(Uuid* uuid, const sound_trigger_uuid_t* halUuid);
+    void convertUuidToHal(sound_trigger_uuid_t* halUuid, const Uuid* uuid);
+    void convertPropertiesFromHal(V2_0::ISoundTriggerHw::Properties* properties,
+                                  const struct sound_trigger_properties* halProperties);
+    void convertTriggerPhraseToHal(struct sound_trigger_phrase* halTriggerPhrase,
+                                   const V2_0::ISoundTriggerHw::Phrase* triggerPhrase);
+    // returned HAL sound model must be freed by caller
+    struct sound_trigger_sound_model* convertSoundModelToHal(
+        const V2_0::ISoundTriggerHw::SoundModel* soundModel);
+    void convertPhraseRecognitionExtraToHal(struct sound_trigger_phrase_recognition_extra* halExtra,
+                                            const V2_0::PhraseRecognitionExtra* extra);
+    // returned recognition config must be freed by caller
+    struct sound_trigger_recognition_config* convertRecognitionConfigToHal(
+        const V2_0::ISoundTriggerHw::RecognitionConfig* config);
+
+    static void convertPhraseRecognitionExtraFromHal(
+        V2_0::PhraseRecognitionExtra* extra,
+        const struct sound_trigger_phrase_recognition_extra* halExtra);
+
+    static void soundModelCallback(struct sound_trigger_model_event* halEvent, void* cookie);
+    static void recognitionCallback(struct sound_trigger_recognition_event* halEvent, void* cookie);
+
+    const char* mModuleName;
+    struct sound_trigger_hw_device* mHwDevice;
+    volatile atomic_uint_fast32_t mNextModelId;
+    DefaultKeyedVector<int32_t, sp<SoundModelClient> > mClients;
+    Mutex mLock;
+
+    // Copied from hardware/interfaces/soundtrigger/2.1/default/SoundTriggerHw.h
+    class SoundModelClient_2_1 : public SoundModelClient {
+       public:
+        SoundModelClient_2_1(uint32_t id, V2_1::ISoundTriggerHwCallback::CallbackCookie cookie,
+                             sp<V2_1::ISoundTriggerHwCallback> callback)
+            : SoundModelClient(id, cookie), mCallback(callback) {}
+
+        void recognitionCallback(struct sound_trigger_recognition_event* halEvent) override;
+        void soundModelCallback(struct sound_trigger_model_event* halEvent) override;
+
+       private:
+        sp<V2_1::ISoundTriggerHwCallback> mCallback;
+    };
+};
+
+extern "C" ISoundTriggerHw* HIDL_FETCH_ISoundTriggerHw(const char* name);
+
+}  // namespace implementation
+}  // namespace V2_2
+}  // namespace soundtrigger
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_SOUNDTRIGGER_V2_2_SOUNDTRIGGERHW_H
diff --git a/soundtrigger/2.2/vts/functional/VtsHalSoundtriggerV2_2TargetTest.cpp b/soundtrigger/2.2/vts/functional/VtsHalSoundtriggerV2_2TargetTest.cpp
new file mode 100644
index 0000000..0f37816
--- /dev/null
+++ b/soundtrigger/2.2/vts/functional/VtsHalSoundtriggerV2_2TargetTest.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SoundTriggerHidlHalTest"
+#include <stdlib.h>
+#include <time.h>
+
+#include <condition_variable>
+#include <mutex>
+
+#include <android/log.h>
+#include <cutils/native_handle.h>
+#include <log/log.h>
+
+#include <android/hardware/audio/common/2.0/types.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHw.h>
+#include <android/hardware/soundtrigger/2.2/ISoundTriggerHw.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+
+using ::android::sp;
+using ::android::hardware::Return;
+using ::android::hardware::soundtrigger::V2_0::ISoundTriggerHwCallback;
+using ::android::hardware::soundtrigger::V2_0::SoundModelHandle;
+using ::android::hardware::soundtrigger::V2_2::ISoundTriggerHw;
+
+// Test environment for SoundTrigger HIDL HAL.
+class SoundTriggerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static SoundTriggerHidlEnvironment* Instance() {
+        static SoundTriggerHidlEnvironment* instance = new SoundTriggerHidlEnvironment;
+        return instance;
+    }
+
+    void registerTestServices() override { registerTestService<ISoundTriggerHw>(); }
+
+   private:
+    SoundTriggerHidlEnvironment() {}
+};
+
+// The main test class for Sound Trigger HIDL HAL.
+class SoundTriggerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    void SetUp() override {
+        mSoundTriggerHal = ::testing::VtsHalHidlTargetTestBase::getService<ISoundTriggerHw>(
+            SoundTriggerHidlEnvironment::Instance()->getServiceName<ISoundTriggerHw>());
+        ASSERT_NE(nullptr, mSoundTriggerHal.get());
+    }
+
+    static void SetUpTestCase() { srand(1234); }
+
+    void TearDown() override {}
+
+   protected:
+    sp<ISoundTriggerHw> mSoundTriggerHal;
+};
+
+/**
+ * Test ISoundTriggerHw::getModelState() method
+ *
+ * Verifies that:
+ *  - the implementation returns -ENOSYS with invalid model handle
+ *
+ */
+TEST_F(SoundTriggerHidlTest, GetModelStateInvalidModel) {
+    SoundModelHandle handle = 0;
+    Return<int32_t> hidlReturn = mSoundTriggerHal->getModelState(handle);
+    EXPECT_TRUE(hidlReturn.isOk());
+    EXPECT_EQ(-ENOSYS, hidlReturn);
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(SoundTriggerHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    SoundTriggerHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
diff --git a/thermal/2.0/Android.bp b/thermal/2.0/Android.bp
new file mode 100644
index 0000000..c513739
--- /dev/null
+++ b/thermal/2.0/Android.bp
@@ -0,0 +1,28 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.thermal@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IThermal.hal",
+        "IThermalChangedCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.thermal@1.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "CoolingDevice",
+        "CoolingType",
+        "Temperature",
+        "TemperatureThreshold",
+        "TemperatureType",
+        "ThrottlingSeverity",
+    ],
+    gen_java: true,
+}
+
diff --git a/thermal/2.0/IThermal.hal b/thermal/2.0/IThermal.hal
new file mode 100644
index 0000000..3ea4590
--- /dev/null
+++ b/thermal/2.0/IThermal.hal
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.thermal@2.0;
+
+import android.hardware.thermal@1.0::IThermal;
+import android.hardware.thermal@1.0::ThermalStatus;
+import IThermalChangedCallback;
+
+interface IThermal extends @1.0::IThermal {
+
+    /**
+     * Retrieves temperatures in Celsius.
+     *
+     * @param filterType whether to filter the result for a given type.
+     * @param type the TemperatureType such as battery or skin.
+     *
+     * @return status Status of the operation. If status code is FAILURE,
+     *    the status.debugMessage must be populated with a human-readable
+     *    error message.
+     *
+     * @return temperatures If status code is SUCCESS, it's filled with the
+     *    current temperatures. The order of temperatures of built-in
+     *    devices (such as CPUs, GPUs and etc.) in the list must be kept
+     *    the same regardless of the number of calls to this method even if
+     *    they go offline, if these devices exist on boot. The method
+     *    always returns and never removes such temperatures.
+     */
+    getCurrentTemperatures(bool filterType, TemperatureType type)
+        generates (ThermalStatus status, vec<Temperature> temperatures);
+
+    /**
+     * Retrieves static temperature thresholds in Celsius.
+     *
+     * @param filterType whether to filter the result for a given type.
+     * @param type the TemperatureType such as battery or skin.
+     *
+     * @return status Status of the operation. If status code is FAILURE,
+     *    the status.debugMessage must be populated with a human-readable error message.
+     * @return temperatureThresholds If status code is SUCCESS, it's filled with the
+     *    temperatures thresholds. The order of temperatures of built-in
+     *    devices (such as CPUs, GPUs and etc.) in the list must be kept
+     *    the same regardless of the number of calls to this method even if
+     *    they go offline, if these devices exist on boot. The method
+     *    always returns and never removes such temperatures. The thresholds
+     *    are returned as static values and must not change across calls. The actual
+     *    throttling state is determined in device thermal mitigation policy/agorithm
+     *    which might not be simple thresholds so these values Thermal HAL provided
+     *    may not be accurate to detemin the throttling status. To get accurate
+     *    throttling status, use getCurrentTemperatures or registerThermalChangedCallback
+     *    and listen to the callback.
+     */
+    getTemperatureThresholds(bool filterType, TemperatureType type)
+        generates (ThermalStatus status, vec<TemperatureThreshold> temperatureThresholds);
+
+   /**
+    * Register an IThermalChangedCallback, used by the Thermal HAL
+    * to receive thermal events when thermal mitigation status changed.
+    * Multiple registrations with different IThermalChangedCallback must be allowed.
+    * Multiple registrations with same IThermalChangedCallback is not allowed, client
+    * should unregister the given IThermalChangedCallback first.
+    *
+    * @param callback the IThermalChangedCallback to use for receiving
+    *    thermal events (nullptr callback will lead to failure with status code FAILURE).
+    * @param filterType if filter for given sensor type.
+    * @param type the type to be filtered.
+    *
+    * @return status Status of the operation. If status code is FAILURE,
+    *    the status.debugMessage must be populated with a human-readable error message.
+    */
+   registerThermalChangedCallback(IThermalChangedCallback callback,
+                                  bool filterType,
+                                  TemperatureType type)
+       generates (ThermalStatus status);
+
+   /**
+    * Unregister an IThermalChangedCallback, used by the Thermal HAL
+    * to receive thermal events when thermal mitigation status changed.
+    *
+    * @param callback the IThermalChangedCallback used for receiving
+    *    thermal events (nullptr callback will lead to failure with status code FAILURE).
+    *
+    * @return status Status of the operation. If status code is FAILURE,
+    *    the status.debugMessage must be populated with a human-readable error message.
+    */
+   unregisterThermalChangedCallback(IThermalChangedCallback callback)
+       generates (ThermalStatus status);
+
+    /**
+     * Retrieves the cooling devices information.
+     *
+     * @param filterType whether to filter the result for a given type.
+     * @param type the CoolingDevice such as CPU/GPU.
+     *
+     * @return status Status of the operation. If status code is FAILURE,
+     *    the status.debugMessage must be populated with the human-readable
+     *    error message.
+     * @return devices If status code is SUCCESS, it's filled with the current
+     *    cooling device information. The order of built-in cooling
+     *    devices in the list must be kept the same regardless of the number
+     *    of calls to this method even if they go offline, if these devices
+     *    exist on boot. The method always returns and never removes from
+     *    the list such cooling devices.
+     */
+   getCurrentCoolingDevices(bool filterType, CoolingType type)
+       generates (ThermalStatus status, vec<CoolingDevice> devices);
+};
diff --git a/thermal/2.0/IThermalChangedCallback.hal b/thermal/2.0/IThermalChangedCallback.hal
new file mode 100644
index 0000000..b06bfbf
--- /dev/null
+++ b/thermal/2.0/IThermalChangedCallback.hal
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.thermal@2.0;
+
+import android.hardware.thermal@2.0::Temperature;
+
+/**
+ * IThermalChangedCallback send throttling notification to clients.
+ */
+interface IThermalChangedCallback {
+    /**
+     * Send a thermal throttling event to all ThermalHAL
+     * thermal event listeners.
+     *
+     * @param temperature The temperature associated with the
+     *    throttling event.
+     */
+    oneway notifyThrottling (Temperature temperature);
+};
diff --git a/thermal/2.0/default/Android.bp b/thermal/2.0/default/Android.bp
new file mode 100644
index 0000000..dab0d33
--- /dev/null
+++ b/thermal/2.0/default/Android.bp
@@ -0,0 +1,35 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_binary {
+    name: "android.hardware.thermal@2.0-service.mock",
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    vendor: true,
+    init_rc: ["android.hardware.thermal@2.0-service.rc"],
+    vintf_fragments: ["android.hardware.thermal@2.0-service.xml"],
+    srcs: [
+        "Thermal.cpp",
+        "service.cpp"
+    ],
+    shared_libs: [
+        "libbase",
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "android.hardware.thermal@2.0",
+        "android.hardware.thermal@1.0",
+    ],
+}
diff --git a/thermal/2.0/default/Thermal.cpp b/thermal/2.0/default/Thermal.cpp
new file mode 100644
index 0000000..0ef4b63
--- /dev/null
+++ b/thermal/2.0/default/Thermal.cpp
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.thermal@2.0-service-mock"
+
+#include <cmath>
+#include <set>
+
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "Thermal.h"
+
+namespace android {
+namespace hardware {
+namespace thermal {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::interfacesEqual;
+using ::android::hardware::thermal::V1_0::ThermalStatus;
+using ::android::hardware::thermal::V1_0::ThermalStatusCode;
+
+std::set<sp<IThermalChangedCallback>> gCallbacks;
+
+static const Temperature_1_0 kTemp_1_0 = {
+    .type = static_cast<::android::hardware::thermal::V1_0::TemperatureType>(TemperatureType::CPU),
+    .name = "test temperature sensor",
+    .currentValue = 98.6,
+    .throttlingThreshold = 58,
+    .shutdownThreshold = 60.0,
+    .vrThrottlingThreshold = 59.0,
+};
+
+static const Temperature_2_0 kTemp_2_0 = {
+    .type = TemperatureType::SKIN,
+    .name = "test temperature sensor",
+    .value = 98.6,
+    .throttlingStatus = ThrottlingSeverity::CRITICAL,
+};
+
+static const TemperatureThreshold kTempThreshold = {
+    .type = TemperatureType::SKIN,
+    .name = "test temperature sensor",
+    .hotThrottlingThresholds = {{NAN, NAN, NAN, NAN, NAN, NAN, NAN}},
+    .coldThrottlingThresholds = {{NAN, NAN, NAN, NAN, NAN, NAN, NAN}},
+    .vrThrottlingThreshold = NAN,
+};
+
+static const CoolingDevice_1_0 kCooling_1_0 = {
+    .type = ::android::hardware::thermal::V1_0::CoolingType::FAN_RPM,
+    .name = "test cooling device",
+    .currentValue = 100.0,
+};
+
+static const CoolingDevice_2_0 kCooling_2_0 = {
+    .type = CoolingType::CPU,
+    .name = "test cooling device",
+    .value = 1,
+};
+
+static const CpuUsage kCpuUsage = {
+    .name = "cpu_name",
+    .active = 0,
+    .total = 0,
+    .isOnline = true,
+};
+
+// Methods from ::android::hardware::thermal::V1_0::IThermal follow.
+Return<void> Thermal::getTemperatures(getTemperatures_cb _hidl_cb) {
+    ThermalStatus status;
+    status.code = ThermalStatusCode::SUCCESS;
+    std::vector<Temperature_1_0> temperatures = {kTemp_1_0};
+    _hidl_cb(status, temperatures);
+    return Void();
+}
+
+Return<void> Thermal::getCpuUsages(getCpuUsages_cb _hidl_cb) {
+    ThermalStatus status;
+    status.code = ThermalStatusCode::SUCCESS;
+    std::vector<CpuUsage> cpu_usages = {kCpuUsage};
+    _hidl_cb(status, cpu_usages);
+    return Void();
+}
+
+Return<void> Thermal::getCoolingDevices(getCoolingDevices_cb _hidl_cb) {
+    ThermalStatus status;
+    status.code = ThermalStatusCode::SUCCESS;
+    std::vector<CoolingDevice_1_0> cooling_devices = {kCooling_1_0};
+    _hidl_cb(status, cooling_devices);
+    return Void();
+}
+
+// Methods from ::android::hardware::thermal::V2_0::IThermal follow.
+Return<void> Thermal::getCurrentTemperatures(bool filterType, TemperatureType type,
+                                             getCurrentTemperatures_cb _hidl_cb) {
+    ThermalStatus status;
+    status.code = ThermalStatusCode::SUCCESS;
+    std::vector<Temperature_2_0> temperatures;
+    if (filterType && type != kTemp_2_0.type) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "Failed to read data";
+    } else {
+        temperatures = {kTemp_2_0};
+    }
+    _hidl_cb(status, temperatures);
+    return Void();
+}
+
+Return<void> Thermal::getTemperatureThresholds(bool filterType, TemperatureType type,
+                                               getTemperatureThresholds_cb _hidl_cb) {
+    ThermalStatus status;
+    status.code = ThermalStatusCode::SUCCESS;
+    std::vector<TemperatureThreshold> temperature_thresholds;
+    if (filterType && type != kTempThreshold.type) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "Failed to read data";
+    } else {
+        temperature_thresholds = {kTempThreshold};
+    }
+    _hidl_cb(status, temperature_thresholds);
+    return Void();
+}
+
+Return<void> Thermal::getCurrentCoolingDevices(bool filterType, CoolingType type,
+                                               getCurrentCoolingDevices_cb _hidl_cb) {
+    ThermalStatus status;
+    status.code = ThermalStatusCode::SUCCESS;
+    std::vector<CoolingDevice_2_0> cooling_devices;
+    if (filterType && type != kCooling_2_0.type) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "Failed to read data";
+    } else {
+        cooling_devices = {kCooling_2_0};
+    }
+    _hidl_cb(status, cooling_devices);
+    return Void();
+}
+
+Return<void> Thermal::registerThermalChangedCallback(const sp<IThermalChangedCallback>& callback,
+                                                     bool filterType, TemperatureType type,
+                                                     registerThermalChangedCallback_cb _hidl_cb) {
+    ThermalStatus status;
+    if (callback == nullptr) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "Invalid nullptr callback";
+        LOG(ERROR) << status.debugMessage;
+        _hidl_cb(status);
+        return Void();
+    } else {
+        status.code = ThermalStatusCode::SUCCESS;
+    }
+    std::lock_guard<std::mutex> _lock(thermal_callback_mutex_);
+    if (std::any_of(callbacks_.begin(), callbacks_.end(), [&](const CallbackSetting& c) {
+            return interfacesEqual(c.callback, callback);
+        })) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "Same callback interface registered already";
+        LOG(ERROR) << status.debugMessage;
+    } else {
+        callbacks_.emplace_back(callback, filterType, type);
+        LOG(INFO) << "A callback has been registered to ThermalHAL, isFilter: " << filterType
+                  << " Type: " << android::hardware::thermal::V2_0::toString(type);
+    }
+    _hidl_cb(status);
+    return Void();
+}
+
+Return<void> Thermal::unregisterThermalChangedCallback(
+    const sp<IThermalChangedCallback>& callback, unregisterThermalChangedCallback_cb _hidl_cb) {
+    ThermalStatus status;
+    if (callback == nullptr) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "Invalid nullptr callback";
+        LOG(ERROR) << status.debugMessage;
+        _hidl_cb(status);
+        return Void();
+    } else {
+        status.code = ThermalStatusCode::SUCCESS;
+    }
+    bool removed = false;
+    std::lock_guard<std::mutex> _lock(thermal_callback_mutex_);
+    callbacks_.erase(
+        std::remove_if(callbacks_.begin(), callbacks_.end(),
+                       [&](const CallbackSetting& c) {
+                           if (interfacesEqual(c.callback, callback)) {
+                               LOG(INFO)
+                                   << "A callback has been unregistered from ThermalHAL, isFilter: "
+                                   << c.is_filter_type << " Type: "
+                                   << android::hardware::thermal::V2_0::toString(c.type);
+                               removed = true;
+                               return true;
+                           }
+                           return false;
+                       }),
+        callbacks_.end());
+    if (!removed) {
+        status.code = ThermalStatusCode::FAILURE;
+        status.debugMessage = "The callback was not registered before";
+        LOG(ERROR) << status.debugMessage;
+    }
+    _hidl_cb(status);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace thermal
+}  // namespace hardware
+}  // namespace android
diff --git a/thermal/2.0/default/Thermal.h b/thermal/2.0/default/Thermal.h
new file mode 100644
index 0000000..5fa1abd
--- /dev/null
+++ b/thermal/2.0/default/Thermal.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_THERMAL_V2_0_THERMAL_H
+#define ANDROID_HARDWARE_THERMAL_V2_0_THERMAL_H
+
+#include <android/hardware/thermal/2.0/IThermal.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace thermal {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::thermal::V1_0::CpuUsage;
+using ::android::hardware::thermal::V2_0::CoolingType;
+using ::android::hardware::thermal::V2_0::IThermal;
+using CoolingDevice_1_0 = ::android::hardware::thermal::V1_0::CoolingDevice;
+using CoolingDevice_2_0 = ::android::hardware::thermal::V2_0::CoolingDevice;
+using Temperature_1_0 = ::android::hardware::thermal::V1_0::Temperature;
+using Temperature_2_0 = ::android::hardware::thermal::V2_0::Temperature;
+using ::android::hardware::thermal::V2_0::IThermalChangedCallback;
+using ::android::hardware::thermal::V2_0::TemperatureThreshold;
+using ::android::hardware::thermal::V2_0::TemperatureType;
+
+struct CallbackSetting {
+    CallbackSetting(sp<IThermalChangedCallback> callback, bool is_filter_type, TemperatureType type)
+        : callback(callback), is_filter_type(is_filter_type), type(type) {}
+    sp<IThermalChangedCallback> callback;
+    bool is_filter_type;
+    TemperatureType type;
+};
+
+class Thermal : public IThermal {
+   public:
+    // Methods from ::android::hardware::thermal::V1_0::IThermal follow.
+    Return<void> getTemperatures(getTemperatures_cb _hidl_cb) override;
+    Return<void> getCpuUsages(getCpuUsages_cb _hidl_cb) override;
+    Return<void> getCoolingDevices(getCoolingDevices_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::thermal::V2_0::IThermal follow.
+    Return<void> getCurrentTemperatures(bool filterType, TemperatureType type,
+                                        getCurrentTemperatures_cb _hidl_cb) override;
+    Return<void> getTemperatureThresholds(bool filterType, TemperatureType type,
+                                          getTemperatureThresholds_cb _hidl_cb) override;
+    Return<void> registerThermalChangedCallback(
+        const sp<IThermalChangedCallback>& callback, bool filterType, TemperatureType type,
+        registerThermalChangedCallback_cb _hidl_cb) override;
+    Return<void> unregisterThermalChangedCallback(
+        const sp<IThermalChangedCallback>& callback,
+        unregisterThermalChangedCallback_cb _hidl_cb) override;
+    Return<void> getCurrentCoolingDevices(bool filterType, CoolingType type,
+                                          getCurrentCoolingDevices_cb _hidl_cb) override;
+
+   private:
+    std::mutex thermal_callback_mutex_;
+    std::vector<CallbackSetting> callbacks_;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace thermal
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_THERMAL_V2_0_THERMAL_H
diff --git a/thermal/2.0/default/android.hardware.thermal@2.0-service.rc b/thermal/2.0/default/android.hardware.thermal@2.0-service.rc
new file mode 100644
index 0000000..046c771
--- /dev/null
+++ b/thermal/2.0/default/android.hardware.thermal@2.0-service.rc
@@ -0,0 +1,5 @@
+service vendor.thermal-hal-2-0-mock /vendor/bin/hw/android.hardware.thermal@2.0-service.mock
+    interface android.hardware.thermal@2.0::IThermal default
+    class hal
+    user system
+    group system
diff --git a/thermal/2.0/default/android.hardware.thermal@2.0-service.xml b/thermal/2.0/default/android.hardware.thermal@2.0-service.xml
new file mode 100644
index 0000000..bcd6344
--- /dev/null
+++ b/thermal/2.0/default/android.hardware.thermal@2.0-service.xml
@@ -0,0 +1,12 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.thermal</name>
+        <transport>hwbinder</transport>
+        <version>1.0</version>
+        <version>2.0</version>
+        <interface>
+            <name>IThermal</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/thermal/2.0/default/service.cpp b/thermal/2.0/default/service.cpp
new file mode 100644
index 0000000..dd24078
--- /dev/null
+++ b/thermal/2.0/default/service.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.thermal@2.0-service-mock"
+
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+#include "Thermal.h"
+
+using ::android::OK;
+using ::android::status_t;
+
+// libhwbinder:
+using ::android::hardware::configureRpcThreadpool;
+using ::android::hardware::joinRpcThreadpool;
+
+// Generated HIDL files:
+using ::android::hardware::thermal::V2_0::IThermal;
+using ::android::hardware::thermal::V2_0::implementation::Thermal;
+
+static int shutdown() {
+    LOG(ERROR) << "Thermal Service is shutting down.";
+    return 1;
+}
+
+int main(int /* argc */, char** /* argv */) {
+    status_t status;
+    android::sp<IThermal> service = nullptr;
+
+    LOG(INFO) << "Thermal HAL Service Mock 2.0 starting...";
+
+    service = new Thermal();
+    if (service == nullptr) {
+        LOG(ERROR) << "Error creating an instance of ThermalHAL.  Exiting...";
+        return shutdown();
+    }
+
+    configureRpcThreadpool(1, true /* callerWillJoin */);
+
+    status = service->registerAsService();
+    if (status != OK) {
+        LOG(ERROR) << "Could not register service for ThermalHAL (" << status << ")";
+        return shutdown();
+    }
+
+    LOG(INFO) << "Thermal Service started successfully.";
+    joinRpcThreadpool();
+    // We should not get past the joinRpcThreadpool().
+    return shutdown();
+}
diff --git a/thermal/2.0/types.hal b/thermal/2.0/types.hal
new file mode 100644
index 0000000..3fc3fdc
--- /dev/null
+++ b/thermal/2.0/types.hal
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.thermal@2.0;
+
+import android.hardware.thermal@1.0::types;
+
+/** Device temperature types */
+enum TemperatureType : @1.0::TemperatureType {
+    USB_PORT = 4,
+    POWER_AMPLIFIER = 5,
+
+    /** Battery Charge Limit - virtual thermal sensors */
+    BCL_VOLTAGE = 6,
+    BCL_CURRENT = 7,
+    BCL_PERCENTAGE = 8,
+
+    /**  Neural Processing Unit */
+    NPU = 9,
+};
+
+
+/** Device cooling device types */
+enum CoolingType : uint32_t {
+    FAN,
+    BATTERY,
+    CPU,
+    GPU,
+    MODEM,
+    NPU,
+    COMPONENT, // for the rest of components
+};
+
+/** Device throttling severity */
+enum ThrottlingSeverity : uint32_t {
+    /**
+     * Not under throttling.
+     */
+    NONE = 0,
+
+    /**
+     * Light throttling where UX is not impacted.
+     */
+    LIGHT,
+
+    /**
+     * Moderate throttling where UX is not largely impacted.
+     */
+    MODERATE,
+
+    /**
+     * Severe throttling where UX is largely impacted.
+     * Similar to 1.0 throttlingThreshold.
+     */
+    SEVERE,
+
+    /**
+     * Platform has done everything to reduce power.
+     */
+    CRITICAL,
+
+    /**
+     * Key components in platform are shutting down due to thermal condition.
+     * Device functionalities will be limited.
+     */
+    EMERGENCY,
+
+    /**
+     * Need shutdown immediately.
+     */
+    SHUTDOWN,
+};
+
+struct TemperatureThreshold {
+    /**
+     * This temperature's type.
+     */
+    TemperatureType type;
+
+    /**
+     * Name of this temperature matching the Temperature struct.
+     * All temperatures of the same "type" must have a different "name",
+     * e.g., cpu0, battery. Clients use it to match Temperature struct.
+     */
+    string name;
+
+    /**
+     * Hot throttling temperature constant for this temperature sensor in
+     * level defined in ThrottlingSeverity including shutdown. Throttling
+     * happens when temperature >= threshold. If not available, set to NAN.
+     * Unit is same as Temperature's value.
+     */
+    float[ThrottlingSeverity#len] hotThrottlingThresholds;
+
+    /**
+     * Cold throttling temperature constant for this temperature sensor in
+     * level defined in ThrottlingSeverity including shutdown. Throttling
+     * happens when temperature <= threshold. If not available, set to NAN.
+     * Unit is same as Temperature's value.
+     */
+    float[ThrottlingSeverity#len] coldThrottlingThresholds;
+
+    /**
+     * Threshold temperature above which the VR mode clockrate minimums cannot
+     * be maintained for this device. If not available, set by HAL to NAN.
+     * Unit is same as Temperature's value.
+     */
+    float vrThrottlingThreshold;
+};
+
+struct Temperature {
+    /**
+     * This temperature's type.
+     */
+    TemperatureType type;
+
+    /**
+     * Name of this temperature matching the TemperatureThreshold.
+     * All temperatures of the same "type" must have a different "name",
+     * e.g., cpu0, battery. Clients use it to match with TemperatureThreshold
+     * struct.
+     */
+    string name;
+
+    /**
+     * For BCL, this is the current reading of the virtual sensor and the unit is
+     * millivolt, milliamp, percentage for BCL_VOLTAGE, BCL_CURRENT and BCL_PERCENTAGE
+     * respectively. For everything else, this is the current temperature in Celsius.
+     * If not available set by HAL to NAN.
+     */
+    float value;
+
+    /**
+     * The current throttling level of the sensor.
+     */
+    ThrottlingSeverity throttlingStatus;
+};
+
+struct CoolingDevice {
+    /**
+     * This cooling device type, CPU, GPU, BATTERY, and etc.
+     */
+    CoolingType type;
+
+    /**
+     * Name of this cooling device.
+     * All cooling devices of the same "type" must have a different "name".
+     * The name is usually defined in kernel device tree, and this is for client
+     * logging purpose.
+     */
+    string name;
+
+    /**
+     * Current throttle state of the cooling device. The value can any unsigned integer
+     * numbers between 0 and max_state defined in its driver, usually representing the
+     * associated device's power state. 0 means device is not in throttling, higher value
+     * means deeper throttling.
+     */
+    uint64_t value;
+};
diff --git a/thermal/2.0/vts/functional/Android.bp b/thermal/2.0/vts/functional/Android.bp
new file mode 100644
index 0000000..f4e95f8
--- /dev/null
+++ b/thermal/2.0/vts/functional/Android.bp
@@ -0,0 +1,26 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalThermalV2_0TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalThermalV2_0TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.thermal@1.0",
+        "android.hardware.thermal@2.0",
+    ],
+}
+
diff --git a/thermal/2.0/vts/functional/VtsHalThermalV2_0TargetTest.cpp b/thermal/2.0/vts/functional/VtsHalThermalV2_0TargetTest.cpp
new file mode 100644
index 0000000..cc2f3df
--- /dev/null
+++ b/thermal/2.0/vts/functional/VtsHalThermalV2_0TargetTest.cpp
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android/hardware/thermal/2.0/IThermal.h>
+#include <android/hardware/thermal/2.0/IThermalChangedCallback.h>
+#include <android/hardware/thermal/2.0/types.h>
+
+#include <VtsHalHidlTargetCallbackBase.h>
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+
+using ::android::sp;
+using ::android::hardware::hidl_enum_range;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::thermal::V1_0::ThermalStatus;
+using ::android::hardware::thermal::V1_0::ThermalStatusCode;
+using ::android::hardware::thermal::V2_0::CoolingDevice;
+using ::android::hardware::thermal::V2_0::CoolingType;
+using ::android::hardware::thermal::V2_0::IThermal;
+using ::android::hardware::thermal::V2_0::IThermalChangedCallback;
+using ::android::hardware::thermal::V2_0::Temperature;
+using ::android::hardware::thermal::V2_0::TemperatureThreshold;
+using ::android::hardware::thermal::V2_0::TemperatureType;
+using ::android::hardware::thermal::V2_0::ThrottlingSeverity;
+
+constexpr char kCallbackNameNotifyThrottling[] = "notifyThrottling";
+static const Temperature kThrottleTemp = {
+    .type = TemperatureType::SKIN,
+    .name = "test temperature sensor",
+    .value = 98.6,
+    .throttlingStatus = ThrottlingSeverity::CRITICAL,
+};
+
+class ThermalCallbackArgs {
+   public:
+    Temperature temperature;
+};
+
+// Callback class for receiving thermal event notifications from main class
+class ThermalCallback : public ::testing::VtsHalHidlTargetCallbackBase<ThermalCallbackArgs>,
+                        public IThermalChangedCallback {
+   public:
+    Return<void> notifyThrottling(const Temperature& temperature) override {
+        ThermalCallbackArgs args;
+        args.temperature = temperature;
+        NotifyFromCallback(kCallbackNameNotifyThrottling, args);
+        return Void();
+    }
+};
+
+// Test environment for Thermal HIDL HAL.
+class ThermalHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static ThermalHidlEnvironment* Instance() {
+        static ThermalHidlEnvironment* instance = new ThermalHidlEnvironment;
+        return instance;
+    }
+
+    void registerTestServices() override { registerTestService<IThermal>(); }
+
+   private:
+    ThermalHidlEnvironment() {}
+};
+
+// The main test class for THERMAL HIDL HAL 2.0.
+class ThermalHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        mThermal = ::testing::VtsHalHidlTargetTestBase::getService<IThermal>(
+            ThermalHidlEnvironment::Instance()->getServiceName<IThermal>());
+        ASSERT_NE(mThermal, nullptr);
+        mThermalCallback = new (std::nothrow) ThermalCallback();
+        ASSERT_NE(mThermalCallback, nullptr);
+        auto ret = mThermal->registerThermalChangedCallback(
+            mThermalCallback, false, TemperatureType::SKIN,
+            [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code); });
+        ASSERT_TRUE(ret.isOk());
+        // Expect to fail if register again
+        ret = mThermal->registerThermalChangedCallback(
+            mThermalCallback, false, TemperatureType::SKIN,
+            [](ThermalStatus status) { EXPECT_NE(ThermalStatusCode::SUCCESS, status.code); });
+        ASSERT_TRUE(ret.isOk());
+    }
+
+    virtual void TearDown() override {
+        auto ret = mThermal->unregisterThermalChangedCallback(
+            mThermalCallback,
+            [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code); });
+        ASSERT_TRUE(ret.isOk());
+        // Expect to fail if unregister again
+        ret = mThermal->unregisterThermalChangedCallback(
+            mThermalCallback,
+            [](ThermalStatus status) { EXPECT_NE(ThermalStatusCode::SUCCESS, status.code); });
+        ASSERT_TRUE(ret.isOk());
+    }
+
+   protected:
+    sp<IThermal> mThermal;
+    sp<ThermalCallback> mThermalCallback;
+};  // class ThermalHidlTest
+
+// Test ThermalChangedCallback::notifyThrottling().
+// This just calls into and back from our local ThermalChangedCallback impl.
+// Note: a real thermal throttling event from the Thermal HAL could be
+// inadvertently received here.
+TEST_F(ThermalHidlTest, NotifyThrottlingTest) {
+    auto ret = mThermalCallback->notifyThrottling(kThrottleTemp);
+    ASSERT_TRUE(ret.isOk());
+    auto res = mThermalCallback->WaitForCallback(kCallbackNameNotifyThrottling);
+    EXPECT_TRUE(res.no_timeout);
+    ASSERT_TRUE(res.args);
+    EXPECT_EQ(kThrottleTemp, res.args->temperature);
+}
+
+// Test Thermal->registerThermalChangedCallback.
+TEST_F(ThermalHidlTest, RegisterThermalChangedCallbackTest) {
+    // Expect to fail with same callback
+    auto ret = mThermal->registerThermalChangedCallback(
+            mThermalCallback, false, TemperatureType::SKIN,
+            [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::FAILURE, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    // Expect to fail with null callback
+    ret = mThermal->registerThermalChangedCallback(
+            nullptr, false, TemperatureType::SKIN,
+            [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::FAILURE, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    sp<ThermalCallback> localThermalCallback = new (std::nothrow) ThermalCallback();
+    // Expect to succeed with different callback
+    ret = mThermal->registerThermalChangedCallback(
+        localThermalCallback, false, TemperatureType::SKIN,
+        [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    // Remove the local callback
+    ret = mThermal->unregisterThermalChangedCallback(
+        localThermalCallback,
+        [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    // Expect to fail with null callback
+    ret = mThermal->unregisterThermalChangedCallback(nullptr, [](ThermalStatus status) {
+        EXPECT_EQ(ThermalStatusCode::FAILURE, status.code);
+    });
+    ASSERT_TRUE(ret.isOk());
+}
+
+// Test Thermal->unregisterThermalChangedCallback.
+TEST_F(ThermalHidlTest, UnregisterThermalChangedCallbackTest) {
+    sp<ThermalCallback> localThermalCallback = new (std::nothrow) ThermalCallback();
+    // Expect to fail as the callback was not registered before
+    auto ret = mThermal->unregisterThermalChangedCallback(
+        localThermalCallback,
+        [](ThermalStatus status) { EXPECT_NE(ThermalStatusCode::SUCCESS, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    // Register a local callback
+    ret = mThermal->registerThermalChangedCallback(
+        localThermalCallback, false, TemperatureType::SKIN,
+        [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    // Expect to succeed with callback removed
+    ret = mThermal->unregisterThermalChangedCallback(
+        localThermalCallback,
+        [](ThermalStatus status) { EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code); });
+    ASSERT_TRUE(ret.isOk());
+    // Expect to fail as the callback has been unregistered already
+    ret = mThermal->unregisterThermalChangedCallback(
+        localThermalCallback,
+        [](ThermalStatus status) { EXPECT_NE(ThermalStatusCode::SUCCESS, status.code); });
+    ASSERT_TRUE(ret.isOk());
+}
+
+// Sanity test for Thermal::getCurrentTemperatures().
+TEST_F(ThermalHidlTest, TemperatureTest) {
+    mThermal->getCurrentTemperatures(false, TemperatureType::SKIN,
+                                     [](ThermalStatus status, hidl_vec<Temperature> temperatures) {
+                                         if (temperatures.size()) {
+                                             EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code);
+                                         } else {
+                                             EXPECT_NE(ThermalStatusCode::SUCCESS, status.code);
+                                         }
+                                     });
+    auto types = hidl_enum_range<TemperatureType>();
+    for (const auto& type : types) {
+        mThermal->getCurrentTemperatures(
+            true, type, [&type](ThermalStatus status, hidl_vec<Temperature> temperatures) {
+                if (temperatures.size()) {
+                    EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code);
+                } else {
+                    EXPECT_NE(ThermalStatusCode::SUCCESS, status.code);
+                }
+                for (int i = 0; i < temperatures.size(); ++i) {
+                    EXPECT_EQ(type, temperatures[i].type);
+                }
+            });
+    }
+}
+
+// Sanity test for Thermal::getTemperatureThresholds().
+TEST_F(ThermalHidlTest, TemperatureThresholdTest) {
+    mThermal->getTemperatureThresholds(
+        false, TemperatureType::SKIN,
+        [](ThermalStatus status, hidl_vec<TemperatureThreshold> temperatures) {
+            if (temperatures.size()) {
+                EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code);
+            } else {
+                EXPECT_NE(ThermalStatusCode::SUCCESS, status.code);
+            }
+        });
+    for (int i = static_cast<int>(TemperatureType::UNKNOWN);
+         i <= static_cast<int>(TemperatureType::POWER_AMPLIFIER); ++i) {
+        auto type = static_cast<TemperatureType>(i);
+        mThermal->getTemperatureThresholds(
+            true, type, [&type](ThermalStatus status, hidl_vec<TemperatureThreshold> temperatures) {
+                if (temperatures.size()) {
+                    EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code);
+                } else {
+                    EXPECT_NE(ThermalStatusCode::SUCCESS, status.code);
+                }
+                for (int i = 0; i < temperatures.size(); ++i) {
+                    EXPECT_EQ(type, temperatures[i].type);
+                }
+            });
+    }
+}
+
+// Sanity test for Thermal::getCurrentCoolingDevices().
+TEST_F(ThermalHidlTest, CoolingDeviceTest) {
+    mThermal->getCurrentCoolingDevices(
+        false, CoolingType::CPU, [](ThermalStatus status, hidl_vec<CoolingDevice> cooling_devices) {
+            if (cooling_devices.size()) {
+                EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code);
+            } else {
+                EXPECT_NE(ThermalStatusCode::SUCCESS, status.code);
+            }
+        });
+    for (int i = 0; i <= static_cast<int>(CoolingType::COMPONENT); ++i) {
+        auto type = static_cast<CoolingType>(i);
+        mThermal->getCurrentCoolingDevices(
+            true, type, [&type](ThermalStatus status, hidl_vec<CoolingDevice> cooling_devices) {
+                if (cooling_devices.size()) {
+                    EXPECT_EQ(ThermalStatusCode::SUCCESS, status.code);
+                } else {
+                    EXPECT_NE(ThermalStatusCode::SUCCESS, status.code);
+                }
+                for (int i = 0; i < cooling_devices.size(); ++i) {
+                    EXPECT_EQ(type, cooling_devices[i].type);
+                }
+            });
+    }
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(ThermalHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    ThermalHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    cout << "Test result = " << status << std::endl;
+    return status;
+}
diff --git a/tv/cec/1.0/types.hal b/tv/cec/1.0/types.hal
index c734c4d..ebe65ae 100644
--- a/tv/cec/1.0/types.hal
+++ b/tv/cec/1.0/types.hal
@@ -114,6 +114,8 @@
     VENDOR_COMMAND_WITH_ID = 0xA0,
     CLEAR_EXTERNAL_TIMER = 0xA1,
     SET_EXTERNAL_TIMER = 0xA2,
+    REPORT_SHORT_AUDIO_DESCRIPTOR = 0xA3,
+    REQUEST_SHORT_AUDIO_DESCRIPTOR = 0xA4,
     INITIATE_ARC = 0xC0,
     REPORT_ARC_INITIATED = 0xC1,
     REPORT_ARC_TERMINATED = 0xC2,
diff --git a/tv/cec/2.0/Android.bp b/tv/cec/2.0/Android.bp
new file mode 100644
index 0000000..998cb23
--- /dev/null
+++ b/tv/cec/2.0/Android.bp
@@ -0,0 +1,46 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.tv.cec@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IHdmiCec.hal",
+        "IHdmiCecCallback.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+        "android.hidl.safe_union@1.0",
+    ],
+    types: [
+        "AbortReason",
+        "CecAllDeviceTypeValue",
+        "CecDeviceFeature",
+        "CecDeviceInfo",
+        "CecDeviceType",
+        "CecLogicalAddress",
+        "CecMessage",
+        "CecMessageType",
+        "CecPowerState",
+        "CecRcProfile",
+        "CecRcProfile1",
+        "CecRcProfileId",
+        "CecRcProfileSource",
+        "CecTopologyEvent",
+        "CecTopologyEventType",
+        "CecUICommandCodes",
+        "CecVersion",
+        "HdmiPortInfo",
+        "HdmiPortType",
+        "HotplugEvent",
+        "MaxLength",
+        "OptionKey",
+        "Result",
+        "SendMessageResult",
+    ],
+    gen_java: true,
+}
+
diff --git a/tv/cec/2.0/IHdmiCec.hal b/tv/cec/2.0/IHdmiCec.hal
new file mode 100644
index 0000000..0723bad
--- /dev/null
+++ b/tv/cec/2.0/IHdmiCec.hal
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.tv.cec@2.0;
+
+import IHdmiCecCallback;
+
+/**
+ * HDMI-CEC HAL interface definition.
+ */
+interface IHdmiCec {
+    /**
+     * Passes Primary Device Type that must be used in this system.
+     *
+     * HAL must use it to allocate logical address as specified in CEC section
+     * 11.3.2 of the CEC spec 2.0b. Then CEC commands addressed the given
+     * logical address can be filtered in.
+     * This method shall be able to be called up to twice to support two Primary
+     * Device Type as specified in CEC Table 11-8 of the CEC spec 2.0b.
+     *
+     * @param deviceType that must be used in this system. It must be a valid
+     *        value in CecDeviceType for the call to succeed.
+     * @return result Result status of the operation. SUCCESS if successful,
+     *         FAILURE_INVALID_ARGS if the given device type is invalid,
+     *         FAILURE_BUSY if device or resource is busy
+     */
+    @callflow(next={"*"})
+    addDeviceType(CecDeviceType deviceType) generates (Result result);
+
+    /**
+     * Clears all Primary Device Types.
+     *
+     * It is used when the system plan to reconfigure Primary Device Type,
+     * hence to tell HAL to release all logical address associated to them,
+     * and change the state back to the beginning.
+     */
+    @callflow(next="addDeviceType")
+    @exit
+    clearDeviceTypes();
+
+    /**
+     * Set All Device Types for a Primary Device Type.
+     *
+     * This value must be used in REPORT_FEATURES message to response
+     * GIVE_FEATURES message in HAL.
+     *
+     * @param allDeviceTypes device all device types for a Primary Device Type.
+     */
+    @callflow(next="addDeviceType")
+    setAllDeviceTypes(CecAllDeviceTypes allDeviceTypes);
+
+    /**
+     * Set Device Features for a Primary Device Type.
+     *
+     * This value must be used in REPORT_FEATURES message to response
+     * GIVE_FEATURES message in HAL.
+     *
+     * @param deviceType The device Primary Device Type.
+     * @param deviceFeatures device features for a Primary Device Type.
+     */
+    @callflow(next="addDeviceType")
+    setDeviceFeatures(CecDeviceType deviceType,
+                      CecDeviceFeatures deviceFeatures);
+
+    /**
+     * Set Remote Control Profile for a Primary Device Type.
+     *
+     * This value must be used in REPORT_FEATURES message to response
+     * GIVE_FEATURES message in HAL.
+     *
+     * @param deviceType The device Primary Device Type.
+     * @param rcProliles remote control profiles for a Primary Device Type.
+     */
+    @callflow(next="addDeviceType")
+    setRcProfile(CecDeviceType deviceType, CecRcProfile rcProfile);
+
+    /**
+     * Retrieve CEC device information.
+     *
+     * CEC section 11.3 of the CEC spec 2.0b specify that a device should not
+     * ask for static information that another device has already supplied.
+     * Therefore, CEC 2.0 software stack need a map to store all cec
+     * devices’ information of current CEC network.
+     * The device information is broadcasted by a device after it allocates a
+     * logical address.  Messages used to send out these information are
+     * REPORT_FEATURES, REPORT_PHYSICAL_ADDRESS, DEVICE_VENDOR_ID.
+     * The spec also requires less than 1 second between REPORT_FEATURES and
+     * REPORT_PHYSICAL_ADDRESS message, and less than 2 second between
+     * REPORT_PHYSICAL_ADDRESS and DEVICE_VENDOR_ID. An Implementation of
+     * device information map in hal can help to meet the timing constraints.
+     * Logical addressing is part of the process to build this map, so the
+     * implementation shall include allocating logical address too.
+     * Whenever a device plug/unplug, the topology of CEC network changes.
+     * The hal implementation shall update devices’ information map, and
+     * send out onTopologyEvent to Android system. Then Android system
+     * will use readDeviceInfo to retreive latest devices’ information of CEC
+     * network.
+     * If SYSTEM_CEC_CONTROL is false, the hal implementation need continue to
+     * maintain and update device information map, and send out pending
+     * onTopologyEvent to Android system when SYSTEM_CEC_CONTROL is
+     * changed to true.
+     *
+     * @param logicalAddress logical address of CEC device.
+     * @param physicalAddress physical address of CEC device.
+     * @return CecDeviceInfo from device information map.
+     * @return result Result status of the operation. SUCCESS if successful,
+     *         FAILURE_INVALID_ARGS if logical or physical address is invalid.
+     *         FAILURE_INVALID_STATE if device information isn't available yet.
+     */
+    @callflow(next="onTopologyChangeEvent")
+    readDeviceInfo(CecLogicalAddress logicalAddress,
+                   CecPhysicalAddress physicalAddress)
+        generates (Result result, CecDeviceInfo deviceInfo);
+
+   /**
+     * Transmits HDMI-CEC message to other HDMI device.
+     *
+     * The method must be designed to return in a certain amount of time and not
+     * hanging forever. This method MUST complete with in 1 second.
+     *
+     * It must try retransmission at least once as specified in the section '7.1
+     * Frame Re-transmissions' of the CEC Spec 1.4b.
+     *
+     * @param message CEC message to be sent to other HDMI device.
+     * @return result Result status of the operation. SUCCESS if successful,
+     *         NACK if the sent message is not acknowledged,
+     *         BUSY if the CEC bus is busy.
+     */
+    @callflow(next="*")
+    sendMessage(CecMessage message) generates (SendMessageResult result);
+
+    /**
+     * Set the callback
+     *
+     * It is used by the framework to receive CecMessages, HDMI hotplug event
+     * and topology update event. Only one callback client is supported.
+     *
+     * @param callback Callback object to pass hdmi events to the system. The
+     *        previously registered callback must be replaced with this one.
+     */
+    @callflow(next={"*"})
+    @entry
+    setCallback(IHdmiCecCallback callback);
+
+   /**
+     * Gets the hdmi port information of underlying hardware.
+     *
+     * @return infos The list of HDMI port information
+     */
+    @callflow(next={"*"})
+    getPortInfo() generates (vec<HdmiPortInfo> infos);
+
+    /**
+     * Sets flags controlling the way HDMI-CEC service works down to HAL
+     * implementation. Those flags must be used in case the feature needs update
+     * in HAL itself, firmware or microcontroller.
+     *
+     * @param key The key of the option to be updated with a new value.
+     * @param value Value to be set.
+     */
+    @callflow(next="*")
+    setOption(OptionKey key, bool value);
+
+    /**
+     * Passes the updated language information of Android system. Contains
+     * three-letter code as defined in ISO/FDIS 639-2. Must be used for HAL to
+     * respond to <Get Menu Language> while in standby mode.
+     *
+     * @param language Three-letter code defined in ISO/FDIS 639-2. Must be
+     *        lowercase letters. (e.g., eng for English)
+     */
+    @callflow(next="*")
+    setLanguage(string language);
+
+    /**
+     * Configures ARC circuit in the hardware logic to start or stop the
+     * feature.
+     *
+     * @param portId Port id to be configured.
+     * @param enable Flag must be either true to start the feature or false to
+     *        stop it.
+     */
+    @callflow(next="*")
+    enableAudioReturnChannel(HdmiPortId portId, bool enable);
+
+    /**
+     * Gets the connection status of the specified port.
+     *
+     * It's specified in CEC section 10.8 of the CEC spec 2.0b
+     *
+     * @param portId Port id to be inspected for the connection status.
+     * @return status True if a device is connected, otherwise false.
+     */
+    @callflow(next="*")
+    isConnected(HdmiPortId portId) generates (bool connected);
+};
diff --git a/tv/cec/2.0/IHdmiCecCallback.hal b/tv/cec/2.0/IHdmiCecCallback.hal
new file mode 100644
index 0000000..1a8a489
--- /dev/null
+++ b/tv/cec/2.0/IHdmiCecCallback.hal
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.tv.cec@2.0;
+
+interface IHdmiCecCallback {
+    /**
+     * The callback function that must be called by HAL implementation to notify
+     * the system of new CEC message arrival.
+     */
+    oneway onCecMessage(CecMessage message);
+
+    /**
+     * The callback function that must be called by HAL implementation to notify
+     * the system of new hotplug event.
+     */
+    oneway onHotplugEvent(HotplugEvent event);
+
+    /**
+     * The callback function must be called by HAL implementation to notify the
+     * system whenever CEC device information of CEC network change.
+     * HAL shall be ready for readDeviceInfo call before invoke this callback.
+     * This event is triggered by topology change of whole CEC network. It's
+     * different from HotplugEvent which is triggered between devices which are
+     * connected directly through HDMI cable.
+     */
+    oneway onTopologyEvent(CecTopologyEvent event);
+};
diff --git a/tv/cec/2.0/default/Android.bp b/tv/cec/2.0/default/Android.bp
new file mode 100644
index 0000000..6e624e3
--- /dev/null
+++ b/tv/cec/2.0/default/Android.bp
@@ -0,0 +1,42 @@
+cc_library_shared {
+    name: "android.hardware.tv.cec@2.0-impl",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    relative_install_path: "hw",
+    srcs: ["HdmiCec.cpp"],
+
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libbase",
+        "libutils",
+        "libhardware",
+        "android.hardware.tv.cec@2.0",
+    ],
+
+}
+
+cc_binary {
+    name: "android.hardware.tv.cec@2.0-service",
+    vintf_fragments: ["android.hardware.tv.cec@2.0-service.xml"],
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    vendor: true,
+    init_rc: ["android.hardware.tv.cec@2.0-service.rc"],
+    srcs: ["service.cpp"],
+
+    shared_libs: [
+        "liblog",
+        "libcutils",
+        "libdl",
+        "libbase",
+        "libutils",
+        "libhardware_legacy",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "android.hardware.tv.cec@2.0",
+    ],
+
+}
diff --git a/tv/cec/2.0/default/HdmiCec.cpp b/tv/cec/2.0/default/HdmiCec.cpp
new file mode 100644
index 0000000..f451719
--- /dev/null
+++ b/tv/cec/2.0/default/HdmiCec.cpp
@@ -0,0 +1,421 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.tv.cec@2.0-impl"
+#include <android-base/logging.h>
+
+#include <hardware/hardware.h>
+#include <hardware/hdmi_cec.h>
+#include "HdmiCec.h"
+
+namespace android {
+namespace hardware {
+namespace tv {
+namespace cec {
+namespace V2_0 {
+namespace implementation {
+
+static_assert(CEC_DEVICE_INACTIVE == static_cast<int>(CecDeviceType::INACTIVE),
+              "CecDeviceType::INACTIVE must match legacy value.");
+static_assert(CEC_DEVICE_TV == static_cast<int>(CecDeviceType::TV),
+              "CecDeviceType::TV must match legacy value.");
+static_assert(CEC_DEVICE_RECORDER == static_cast<int>(CecDeviceType::RECORDER),
+              "CecDeviceType::RECORDER must match legacy value.");
+static_assert(CEC_DEVICE_TUNER == static_cast<int>(CecDeviceType::TUNER),
+              "CecDeviceType::TUNER must match legacy value.");
+static_assert(CEC_DEVICE_PLAYBACK == static_cast<int>(CecDeviceType::PLAYBACK),
+              "CecDeviceType::PLAYBACK must match legacy value.");
+static_assert(CEC_DEVICE_AUDIO_SYSTEM == static_cast<int>(CecDeviceType::AUDIO_SYSTEM),
+              "CecDeviceType::AUDIO_SYSTEM must match legacy value.");
+/* TODO: Adjust for cec@2.0
+static_assert(CEC_DEVICE_MAX == static_cast<int>(CecDeviceType::MAX),
+        "CecDeviceType::MAX must match legacy value.");
+*/
+static_assert(CEC_ADDR_TV == static_cast<int>(CecLogicalAddress::TV),
+              "CecLogicalAddress::TV must match legacy value.");
+static_assert(CEC_ADDR_RECORDER_1 == static_cast<int>(CecLogicalAddress::RECORDER_1),
+              "CecLogicalAddress::RECORDER_1 must match legacy value.");
+static_assert(CEC_ADDR_RECORDER_2 == static_cast<int>(CecLogicalAddress::RECORDER_2),
+              "CecLogicalAddress::RECORDER_2 must match legacy value.");
+static_assert(CEC_ADDR_TUNER_1 == static_cast<int>(CecLogicalAddress::TUNER_1),
+              "CecLogicalAddress::TUNER_1 must match legacy value.");
+static_assert(CEC_ADDR_PLAYBACK_1 == static_cast<int>(CecLogicalAddress::PLAYBACK_1),
+              "CecLogicalAddress::PLAYBACK_1 must match legacy value.");
+static_assert(CEC_ADDR_AUDIO_SYSTEM == static_cast<int>(CecLogicalAddress::AUDIO_SYSTEM),
+              "CecLogicalAddress::AUDIO_SYSTEM must match legacy value.");
+static_assert(CEC_ADDR_TUNER_2 == static_cast<int>(CecLogicalAddress::TUNER_2),
+              "CecLogicalAddress::TUNER_2 must match legacy value.");
+static_assert(CEC_ADDR_TUNER_3 == static_cast<int>(CecLogicalAddress::TUNER_3),
+              "CecLogicalAddress::TUNER_3 must match legacy value.");
+static_assert(CEC_ADDR_PLAYBACK_2 == static_cast<int>(CecLogicalAddress::PLAYBACK_2),
+              "CecLogicalAddress::PLAYBACK_2 must match legacy value.");
+static_assert(CEC_ADDR_RECORDER_3 == static_cast<int>(CecLogicalAddress::RECORDER_3),
+              "CecLogicalAddress::RECORDER_3 must match legacy value.");
+static_assert(CEC_ADDR_TUNER_4 == static_cast<int>(CecLogicalAddress::TUNER_4),
+              "CecLogicalAddress::TUNER_4 must match legacy value.");
+static_assert(CEC_ADDR_PLAYBACK_3 == static_cast<int>(CecLogicalAddress::PLAYBACK_3),
+              "CecLogicalAddress::PLAYBACK_3 must match legacy value.");
+/* TODO: Adjust for cec@2.0
+static_assert(CEC_ADDR_FREE_USE == static_cast<int>(CecLogicalAddress::FREE_USE),
+        "CecLogicalAddress::FREE_USE must match legacy value.");
+*/
+static_assert(CEC_ADDR_UNREGISTERED == static_cast<int>(CecLogicalAddress::UNREGISTERED),
+              "CecLogicalAddress::UNREGISTERED must match legacy value.");
+static_assert(CEC_ADDR_BROADCAST == static_cast<int>(CecLogicalAddress::BROADCAST),
+              "CecLogicalAddress::BROADCAST must match legacy value.");
+
+static_assert(CEC_MESSAGE_FEATURE_ABORT == static_cast<int>(CecMessageType::FEATURE_ABORT),
+              "CecMessageType::FEATURE_ABORT must match legacy value.");
+static_assert(CEC_MESSAGE_IMAGE_VIEW_ON == static_cast<int>(CecMessageType::IMAGE_VIEW_ON),
+              "CecMessageType::IMAGE_VIEW_ON must match legacy value.");
+static_assert(CEC_MESSAGE_TUNER_STEP_INCREMENT ==
+                      static_cast<int>(CecMessageType::TUNER_STEP_INCREMENT),
+              "CecMessageType::TUNER_STEP_INCREMENT must match legacy value.");
+static_assert(CEC_MESSAGE_TUNER_STEP_DECREMENT ==
+                      static_cast<int>(CecMessageType::TUNER_STEP_DECREMENT),
+              "CecMessageType::TUNER_STEP_DECREMENT must match legacy value.");
+static_assert(CEC_MESSAGE_TUNER_DEVICE_STATUS ==
+                      static_cast<int>(CecMessageType::TUNER_DEVICE_STATUS),
+              "CecMessageType::TUNER_DEVICE_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_TUNER_DEVICE_STATUS ==
+                      static_cast<int>(CecMessageType::GIVE_TUNER_DEVICE_STATUS),
+              "CecMessageType::GIVE_TUNER_DEVICE_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_RECORD_ON == static_cast<int>(CecMessageType::RECORD_ON),
+              "CecMessageType::RECORD_ON must match legacy value.");
+static_assert(CEC_MESSAGE_RECORD_STATUS == static_cast<int>(CecMessageType::RECORD_STATUS),
+              "CecMessageType::RECORD_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_RECORD_OFF == static_cast<int>(CecMessageType::RECORD_OFF),
+              "CecMessageType::RECORD_OFF must match legacy value.");
+static_assert(CEC_MESSAGE_TEXT_VIEW_ON == static_cast<int>(CecMessageType::TEXT_VIEW_ON),
+              "CecMessageType::TEXT_VIEW_ON must match legacy value.");
+static_assert(CEC_MESSAGE_RECORD_TV_SCREEN == static_cast<int>(CecMessageType::RECORD_TV_SCREEN),
+              "CecMessageType::RECORD_TV_SCREEN must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_DECK_STATUS == static_cast<int>(CecMessageType::GIVE_DECK_STATUS),
+              "CecMessageType::GIVE_DECK_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_STANDBY == static_cast<int>(CecMessageType::STANDBY),
+              "CecMessageType::STANDBY must match legacy value.");
+static_assert(CEC_MESSAGE_PLAY == static_cast<int>(CecMessageType::PLAY),
+              "CecMessageType::PLAY must match legacy value.");
+static_assert(CEC_MESSAGE_DECK_CONTROL == static_cast<int>(CecMessageType::DECK_CONTROL),
+              "CecMessageType::DECK_CONTROL must match legacy value.");
+static_assert(CEC_MESSAGE_TIMER_CLEARED_STATUS ==
+                      static_cast<int>(CecMessageType::TIMER_CLEARED_STATUS),
+              "CecMessageType::TIMER_CLEARED_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_USER_CONTROL_PRESSED ==
+                      static_cast<int>(CecMessageType::USER_CONTROL_PRESSED),
+              "CecMessageType::USER_CONTROL_PRESSED must match legacy value.");
+static_assert(CEC_MESSAGE_USER_CONTROL_RELEASED ==
+                      static_cast<int>(CecMessageType::USER_CONTROL_RELEASED),
+              "CecMessageType::USER_CONTROL_RELEASED must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_OSD_NAME == static_cast<int>(CecMessageType::GIVE_OSD_NAME),
+              "CecMessageType::GIVE_OSD_NAME must match legacy value.");
+static_assert(CEC_MESSAGE_SET_OSD_NAME == static_cast<int>(CecMessageType::SET_OSD_NAME),
+              "CecMessageType::SET_OSD_NAME must match legacy value.");
+static_assert(CEC_MESSAGE_SYSTEM_AUDIO_MODE_REQUEST ==
+                      static_cast<int>(CecMessageType::SYSTEM_AUDIO_MODE_REQUEST),
+              "CecMessageType::SYSTEM_AUDIO_MODE_REQUEST must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_AUDIO_STATUS == static_cast<int>(CecMessageType::GIVE_AUDIO_STATUS),
+              "CecMessageType::GIVE_AUDIO_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_SET_SYSTEM_AUDIO_MODE ==
+                      static_cast<int>(CecMessageType::SET_SYSTEM_AUDIO_MODE),
+              "CecMessageType::SET_SYSTEM_AUDIO_MODE must match legacy value.");
+static_assert(CEC_MESSAGE_REPORT_AUDIO_STATUS ==
+                      static_cast<int>(CecMessageType::REPORT_AUDIO_STATUS),
+              "CecMessageType::REPORT_AUDIO_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_SYSTEM_AUDIO_MODE_STATUS ==
+                      static_cast<int>(CecMessageType::GIVE_SYSTEM_AUDIO_MODE_STATUS),
+              "CecMessageType::GIVE_SYSTEM_AUDIO_MODE_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_SYSTEM_AUDIO_MODE_STATUS ==
+                      static_cast<int>(CecMessageType::SYSTEM_AUDIO_MODE_STATUS),
+              "CecMessageType::SYSTEM_AUDIO_MODE_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_ROUTING_CHANGE == static_cast<int>(CecMessageType::ROUTING_CHANGE),
+              "CecMessageType::ROUTING_CHANGE must match legacy value.");
+static_assert(CEC_MESSAGE_ROUTING_INFORMATION ==
+                      static_cast<int>(CecMessageType::ROUTING_INFORMATION),
+              "CecMessageType::ROUTING_INFORMATION must match legacy value.");
+static_assert(CEC_MESSAGE_ACTIVE_SOURCE == static_cast<int>(CecMessageType::ACTIVE_SOURCE),
+              "CecMessageType::ACTIVE_SOURCE must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_PHYSICAL_ADDRESS ==
+                      static_cast<int>(CecMessageType::GIVE_PHYSICAL_ADDRESS),
+              "CecMessageType::GIVE_PHYSICAL_ADDRESS must match legacy value.");
+static_assert(CEC_MESSAGE_REPORT_PHYSICAL_ADDRESS ==
+                      static_cast<int>(CecMessageType::REPORT_PHYSICAL_ADDRESS),
+              "CecMessageType::REPORT_PHYSICAL_ADDRESS must match legacy value.");
+static_assert(CEC_MESSAGE_REQUEST_ACTIVE_SOURCE ==
+                      static_cast<int>(CecMessageType::REQUEST_ACTIVE_SOURCE),
+              "CecMessageType::REQUEST_ACTIVE_SOURCE must match legacy value.");
+static_assert(CEC_MESSAGE_SET_STREAM_PATH == static_cast<int>(CecMessageType::SET_STREAM_PATH),
+              "CecMessageType::SET_STREAM_PATH must match legacy value.");
+static_assert(CEC_MESSAGE_DEVICE_VENDOR_ID == static_cast<int>(CecMessageType::DEVICE_VENDOR_ID),
+              "CecMessageType::DEVICE_VENDOR_ID must match legacy value.");
+static_assert(CEC_MESSAGE_VENDOR_COMMAND == static_cast<int>(CecMessageType::VENDOR_COMMAND),
+              "CecMessageType::VENDOR_COMMAND must match legacy value.");
+static_assert(CEC_MESSAGE_VENDOR_REMOTE_BUTTON_DOWN ==
+                      static_cast<int>(CecMessageType::VENDOR_REMOTE_BUTTON_DOWN),
+              "CecMessageType::VENDOR_REMOTE_BUTTON_DOWN must match legacy value.");
+static_assert(CEC_MESSAGE_VENDOR_REMOTE_BUTTON_UP ==
+                      static_cast<int>(CecMessageType::VENDOR_REMOTE_BUTTON_UP),
+              "CecMessageType::VENDOR_REMOTE_BUTTON_UP must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_DEVICE_VENDOR_ID ==
+                      static_cast<int>(CecMessageType::GIVE_DEVICE_VENDOR_ID),
+              "CecMessageType::GIVE_DEVICE_VENDOR_ID must match legacy value.");
+static_assert(CEC_MESSAGE_MENU_REQUEST == static_cast<int>(CecMessageType::MENU_REQUEST),
+              "CecMessageType::MENU_REQUEST must match legacy value.");
+static_assert(CEC_MESSAGE_MENU_STATUS == static_cast<int>(CecMessageType::MENU_STATUS),
+              "CecMessageType::MENU_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_GIVE_DEVICE_POWER_STATUS ==
+                      static_cast<int>(CecMessageType::GIVE_DEVICE_POWER_STATUS),
+              "CecMessageType::GIVE_DEVICE_POWER_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_REPORT_POWER_STATUS ==
+                      static_cast<int>(CecMessageType::REPORT_POWER_STATUS),
+              "CecMessageType::REPORT_POWER_STATUS must match legacy value.");
+static_assert(CEC_MESSAGE_GET_MENU_LANGUAGE == static_cast<int>(CecMessageType::GET_MENU_LANGUAGE),
+              "CecMessageType::GET_MENU_LANGUAGE must match legacy value.");
+static_assert(CEC_MESSAGE_SELECT_ANALOG_SERVICE ==
+                      static_cast<int>(CecMessageType::SELECT_ANALOG_SERVICE),
+              "CecMessageType::SELECT_ANALOG_SERVICE must match legacy value.");
+static_assert(CEC_MESSAGE_SELECT_DIGITAL_SERVICE ==
+                      static_cast<int>(CecMessageType::SELECT_DIGITAL_SERVICE),
+              "CecMessageType::SELECT_DIGITAL_SERVICE must match legacy value.");
+static_assert(CEC_MESSAGE_SET_DIGITAL_TIMER == static_cast<int>(CecMessageType::SET_DIGITAL_TIMER),
+              "CecMessageType::SET_DIGITAL_TIMER must match legacy value.");
+static_assert(CEC_MESSAGE_CLEAR_DIGITAL_TIMER ==
+                      static_cast<int>(CecMessageType::CLEAR_DIGITAL_TIMER),
+              "CecMessageType::CLEAR_DIGITAL_TIMER must match legacy value.");
+static_assert(CEC_MESSAGE_SET_AUDIO_RATE == static_cast<int>(CecMessageType::SET_AUDIO_RATE),
+              "CecMessageType::SET_AUDIO_RATE must match legacy value.");
+static_assert(CEC_MESSAGE_INACTIVE_SOURCE == static_cast<int>(CecMessageType::INACTIVE_SOURCE),
+              "CecMessageType::INACTIVE_SOURCE must match legacy value.");
+static_assert(CEC_MESSAGE_CEC_VERSION == static_cast<int>(CecMessageType::CEC_VERSION),
+              "CecMessageType::CEC_VERSION must match legacy value.");
+static_assert(CEC_MESSAGE_GET_CEC_VERSION == static_cast<int>(CecMessageType::GET_CEC_VERSION),
+              "CecMessageType::GET_CEC_VERSION must match legacy value.");
+static_assert(CEC_MESSAGE_VENDOR_COMMAND_WITH_ID ==
+                      static_cast<int>(CecMessageType::VENDOR_COMMAND_WITH_ID),
+              "CecMessageType::VENDOR_COMMAND_WITH_ID must match legacy value.");
+static_assert(CEC_MESSAGE_CLEAR_EXTERNAL_TIMER ==
+                      static_cast<int>(CecMessageType::CLEAR_EXTERNAL_TIMER),
+              "CecMessageType::CLEAR_EXTERNAL_TIMER must match legacy value.");
+static_assert(CEC_MESSAGE_SET_EXTERNAL_TIMER ==
+                      static_cast<int>(CecMessageType::SET_EXTERNAL_TIMER),
+              "CecMessageType::SET_EXTERNAL_TIMER must match legacy value.");
+static_assert(CEC_MESSAGE_INITIATE_ARC == static_cast<int>(CecMessageType::INITIATE_ARC),
+              "CecMessageType::INITIATE_ARC must match legacy value.");
+static_assert(CEC_MESSAGE_REPORT_ARC_INITIATED ==
+                      static_cast<int>(CecMessageType::REPORT_ARC_INITIATED),
+              "CecMessageType::REPORT_ARC_INITIATED must match legacy value.");
+static_assert(CEC_MESSAGE_REPORT_ARC_TERMINATED ==
+                      static_cast<int>(CecMessageType::REPORT_ARC_TERMINATED),
+              "CecMessageType::REPORT_ARC_TERMINATED must match legacy value.");
+static_assert(CEC_MESSAGE_REQUEST_ARC_INITIATION ==
+                      static_cast<int>(CecMessageType::REQUEST_ARC_INITIATION),
+              "CecMessageType::REQUEST_ARC_INITIATION must match legacy value.");
+static_assert(CEC_MESSAGE_REQUEST_ARC_TERMINATION ==
+                      static_cast<int>(CecMessageType::REQUEST_ARC_TERMINATION),
+              "CecMessageType::REQUEST_ARC_TERMINATION must match legacy value.");
+static_assert(CEC_MESSAGE_TERMINATE_ARC == static_cast<int>(CecMessageType::TERMINATE_ARC),
+              "CecMessageType::TERMINATE_ARC must match legacy value.");
+static_assert(CEC_MESSAGE_ABORT == static_cast<int>(CecMessageType::ABORT),
+              "CecMessageType::ABORT must match legacy value.");
+
+static_assert(ABORT_UNRECOGNIZED_MODE == static_cast<int>(AbortReason::UNRECOGNIZED_MODE),
+              "AbortReason::UNRECOGNIZED_MODE must match legacy value.");
+static_assert(ABORT_NOT_IN_CORRECT_MODE == static_cast<int>(AbortReason::NOT_IN_CORRECT_MODE),
+              "AbortReason::NOT_IN_CORRECT_MODE must match legacy value.");
+static_assert(ABORT_CANNOT_PROVIDE_SOURCE == static_cast<int>(AbortReason::CANNOT_PROVIDE_SOURCE),
+              "AbortReason::CANNOT_PROVIDE_SOURCE must match legacy value.");
+static_assert(ABORT_INVALID_OPERAND == static_cast<int>(AbortReason::INVALID_OPERAND),
+              "AbortReason::INVALID_OPERAND must match legacy value.");
+static_assert(ABORT_REFUSED == static_cast<int>(AbortReason::REFUSED),
+              "AbortReason::REFUSED must match legacy value.");
+static_assert(ABORT_UNABLE_TO_DETERMINE == static_cast<int>(AbortReason::UNABLE_TO_DETERMINE),
+              "AbortReason::UNABLE_TO_DETERMINE must match legacy value.");
+
+static_assert(HDMI_RESULT_SUCCESS == static_cast<int>(SendMessageResult::SUCCESS),
+              "SendMessageResult::SUCCESS must match legacy value.");
+static_assert(HDMI_RESULT_NACK == static_cast<int>(SendMessageResult::NACK),
+              "SendMessageResult::NACK must match legacy value.");
+static_assert(HDMI_RESULT_BUSY == static_cast<int>(SendMessageResult::BUSY),
+              "SendMessageResult::BUSY must match legacy value.");
+static_assert(HDMI_RESULT_FAIL == static_cast<int>(SendMessageResult::FAIL),
+              "SendMessageResult::FAIL must match legacy value.");
+
+static_assert(HDMI_INPUT == static_cast<int>(HdmiPortType::INPUT),
+              "HdmiPortType::INPUT must match legacy value.");
+static_assert(HDMI_OUTPUT == static_cast<int>(HdmiPortType::OUTPUT),
+              "HdmiPortType::OUTPUT must match legacy value.");
+
+static_assert(HDMI_OPTION_WAKEUP == static_cast<int>(OptionKey::WAKEUP),
+              "OptionKey::WAKEUP must match legacy value.");
+static_assert(HDMI_OPTION_ENABLE_CEC == static_cast<int>(OptionKey::ENABLE_CEC),
+              "OptionKey::ENABLE_CEC must match legacy value.");
+static_assert(HDMI_OPTION_SYSTEM_CEC_CONTROL == static_cast<int>(OptionKey::SYSTEM_CEC_CONTROL),
+              "OptionKey::SYSTEM_CEC_CONTROL must match legacy value.");
+
+sp<IHdmiCecCallback> HdmiCec::mCallback = nullptr;
+
+HdmiCec::HdmiCec(hdmi_cec_device_t* device) : mDevice(device) {}
+
+// Methods from ::android::hardware::tv::cec::V2_0::IHdmiCec follow.
+Return<Result> HdmiCec::addDeviceType(CecDeviceType deviceType) {
+    // TODO implement
+    if (deviceType <= CecDeviceType::MAX) {
+        return Result::SUCCESS;
+    } else {
+        return Result::FAILURE_INVALID_ARGS;
+    }
+}
+
+Return<void> HdmiCec::clearDeviceTypes() {
+    // TODO implement
+    return Void();
+}
+
+Return<void> HdmiCec::setAllDeviceTypes(CecAllDeviceTypes allDeviceTypes) {
+    // TODO implement
+    if (allDeviceTypes == 1) {
+    }
+    return Void();
+}
+
+Return<void> HdmiCec::setDeviceFeatures(CecDeviceType deviceType,
+                                        CecDeviceFeatures /* deviceFeatures */) {
+    // TODO implement
+    if (deviceType != CecDeviceType::MAX) {
+    }
+    return Void();
+}
+
+Return<void> HdmiCec::setRcProfile(CecDeviceType deviceType, const CecRcProfile& /* rcProfile */) {
+    // TODO implement
+    if (deviceType != CecDeviceType::MAX) {
+    }
+    return Void();
+}
+
+Return<void> HdmiCec::readDeviceInfo(CecLogicalAddress logicalAddress,
+                                     CecPhysicalAddress physicalAddress,
+                                     const readDeviceInfo_cb _hidl_cb) {
+    // TODO implement
+    CecDeviceInfo deviceInfo;
+
+    if (logicalAddress == CecLogicalAddress::TV) {
+        _hidl_cb(Result::SUCCESS, deviceInfo);
+        if (physicalAddress) {
+        }
+    }
+    return Void();
+}
+
+Return<SendMessageResult> HdmiCec::sendMessage(const CecMessage& message) {
+    cec_message_t legacyMessage{
+            .initiator = static_cast<cec_logical_address_t>(message.initiator),
+            .destination = static_cast<cec_logical_address_t>(message.destination),
+            .length = message.body.size(),
+    };
+    for (size_t i = 0; i < message.body.size(); ++i) {
+        legacyMessage.body[i] = static_cast<unsigned char>(message.body[i]);
+    }
+    return static_cast<SendMessageResult>(mDevice->send_message(mDevice, &legacyMessage));
+}
+
+Return<void> HdmiCec::setCallback(const sp<IHdmiCecCallback>& callback) {
+    if (mCallback != nullptr) {
+        mCallback->unlinkToDeath(this);
+        mCallback = nullptr;
+    }
+
+    if (callback != nullptr) {
+        mCallback = callback;
+        mCallback->linkToDeath(this, 0 /*cookie*/);
+        mDevice->register_event_callback(mDevice, eventCallback, nullptr);
+    }
+    return Void();
+}
+
+Return<void> HdmiCec::getPortInfo(getPortInfo_cb _hidl_cb) {
+    struct hdmi_port_info* legacyPorts;
+    int numPorts;
+    hidl_vec<HdmiPortInfo> portInfos;
+    mDevice->get_port_info(mDevice, &legacyPorts, &numPorts);
+    portInfos.resize(numPorts);
+    for (int i = 0; i < numPorts; ++i) {
+        portInfos[i] = {.type = static_cast<HdmiPortType>(legacyPorts[i].type),
+                        .portId = static_cast<HdmiPortId>(legacyPorts[i].port_id),
+                        .cecSupported = legacyPorts[i].cec_supported != 0,
+                        .arcSupported = legacyPorts[i].arc_supported != 0,
+                        .physicalAddress = legacyPorts[i].physical_address};
+    }
+    _hidl_cb(portInfos);
+    return Void();
+}
+
+Return<void> HdmiCec::setOption(OptionKey key, bool value) {
+    mDevice->set_option(mDevice, static_cast<int>(key), value ? 1 : 0);
+    return Void();
+}
+
+Return<void> HdmiCec::setLanguage(const hidl_string& language) {
+    if (language.size() != 3) {
+        LOG(ERROR) << "Wrong language code: expected 3 letters, but it was " << language.size()
+                   << ".";
+        return Void();
+    }
+    const char* languageStr = language.c_str();
+    int convertedLanguage = ((languageStr[0] & 0xFF) << 16) | ((languageStr[1] & 0xFF) << 8) |
+                            (languageStr[2] & 0xFF);
+    mDevice->set_option(mDevice, HDMI_OPTION_SET_LANG, convertedLanguage);
+    return Void();
+}
+
+Return<void> HdmiCec::enableAudioReturnChannel(HdmiPortId portId, bool enable) {
+    mDevice->set_audio_return_channel(mDevice, portId, enable ? 1 : 0);
+    return Void();
+}
+
+Return<bool> HdmiCec::isConnected(HdmiPortId portId) {
+    return mDevice->is_connected(mDevice, portId) > 0;
+}
+
+IHdmiCec* HIDL_FETCH_IHdmiCec(const char* hal) {
+    hdmi_cec_device_t* hdmi_cec_device;
+    int ret = 0;
+    const hw_module_t* hw_module = nullptr;
+
+    ret = hw_get_module(HDMI_CEC_HARDWARE_MODULE_ID, &hw_module);
+    if (ret == 0) {
+        ret = hdmi_cec_open(hw_module, &hdmi_cec_device);
+        if (ret != 0) {
+            LOG(ERROR) << "hdmi_cec_open " << hal << " failed: " << ret;
+        }
+    } else {
+        LOG(ERROR) << "hw_get_module " << hal << " failed: " << ret;
+    }
+
+    if (ret == 0) {
+        return new HdmiCec(hdmi_cec_device);
+    } else {
+        LOG(ERROR) << "Passthrough failed to load legacy HAL.";
+        return nullptr;
+    }
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace cec
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android
diff --git a/tv/cec/2.0/default/HdmiCec.h b/tv/cec/2.0/default/HdmiCec.h
new file mode 100644
index 0000000..ab54770
--- /dev/null
+++ b/tv/cec/2.0/default/HdmiCec.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_TV_CEC_V2_0_HDMICEC_H
+#define ANDROID_HARDWARE_TV_CEC_V2_0_HDMICEC_H
+
+#include <algorithm>
+
+#include <android/hardware/tv/cec/2.0/IHdmiCec.h>
+#include <hardware/hardware.h>
+#include <hardware/hdmi_cec.h>
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+namespace android {
+namespace hardware {
+namespace tv {
+namespace cec {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::tv::cec::V2_0::CecLogicalAddress;
+using ::android::hardware::tv::cec::V2_0::CecMessage;
+using ::android::hardware::tv::cec::V2_0::CecPhysicalAddress;
+using ::android::hardware::tv::cec::V2_0::HdmiPortId;
+using ::android::hardware::tv::cec::V2_0::HdmiPortInfo;
+using ::android::hardware::tv::cec::V2_0::IHdmiCec;
+using ::android::hardware::tv::cec::V2_0::IHdmiCecCallback;
+using ::android::hardware::tv::cec::V2_0::MaxLength;
+using ::android::hardware::tv::cec::V2_0::OptionKey;
+using ::android::hardware::tv::cec::V2_0::Result;
+using ::android::hardware::tv::cec::V2_0::SendMessageResult;
+
+struct HdmiCec : public IHdmiCec, public hidl_death_recipient {
+    HdmiCec(hdmi_cec_device_t* device);
+    // Methods from ::android::hardware::tv::cec::V2_0::IHdmiCec follow.
+    Return<Result> addDeviceType(CecDeviceType deviceType) override;
+    Return<void> clearDeviceTypes() override;
+    Return<void> setAllDeviceTypes(CecAllDeviceTypes allDeviceTypes) override;
+    Return<void> setDeviceFeatures(CecDeviceType deviceType,
+                                   CecDeviceFeatures /* deviceFeatures */) override;
+    Return<void> setRcProfile(CecDeviceType deviceType,
+                              const CecRcProfile& /* rcProfile */) override;
+    Return<void> readDeviceInfo(CecLogicalAddress logicalAddress,
+                                CecPhysicalAddress physicalAddress,
+                                const readDeviceInfo_cb _hidl_cb) override;
+    Return<SendMessageResult> sendMessage(const CecMessage& message) override;
+    Return<void> setCallback(const sp<IHdmiCecCallback>& callback) override;
+    Return<void> getPortInfo(getPortInfo_cb _hidl_cb) override;
+    Return<void> setOption(OptionKey key, bool value) override;
+    Return<void> setLanguage(const hidl_string& language) override;
+    Return<void> enableAudioReturnChannel(HdmiPortId portId, bool enable) override;
+    Return<bool> isConnected(HdmiPortId portId) override;
+
+    static void eventCallback(const hdmi_event_t* event, void* /* arg */) {
+        if (mCallback != nullptr && event != nullptr) {
+            if (event->type == HDMI_EVENT_CEC_MESSAGE) {
+                size_t length =
+                        std::min(event->cec.length, static_cast<size_t>(MaxLength::MESSAGE_BODY));
+                CecMessage cecMessage{
+                        .initiator = static_cast<CecLogicalAddress>(event->cec.initiator),
+                        .destination = static_cast<CecLogicalAddress>(event->cec.destination),
+                };
+                cecMessage.body.resize(length);
+                for (size_t i = 0; i < length; ++i) {
+                    cecMessage.body[i] = static_cast<uint8_t>(event->cec.body[i]);
+                }
+                mCallback->onCecMessage(cecMessage);
+            } else if (event->type == HDMI_EVENT_HOT_PLUG) {
+                HotplugEvent hotplugEvent{
+                        .connected = event->hotplug.connected > 0,
+                        .portId = static_cast<HdmiPortId>(event->hotplug.port_id)};
+                mCallback->onHotplugEvent(hotplugEvent);
+            }
+        }
+    }
+
+    virtual void serviceDied(uint64_t /*cookie*/,
+                             const wp<::android::hidl::base::V1_0::IBase>& /*who*/) {
+        setCallback(nullptr);
+    }
+
+   private:
+    static sp<IHdmiCecCallback> mCallback;
+    const hdmi_cec_device_t* mDevice;
+};
+
+extern "C" IHdmiCec* HIDL_FETCH_IHdmiCec(const char* name);
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace cec
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_TV_CEC_V2_0_HDMICEC_H
diff --git a/tv/cec/2.0/default/OWNERS b/tv/cec/2.0/default/OWNERS
new file mode 100644
index 0000000..1b3d095
--- /dev/null
+++ b/tv/cec/2.0/default/OWNERS
@@ -0,0 +1,4 @@
+nchalko@google.com
+amyjojo@google.com
+shubang@google.com
+quxiangfang@google.com
diff --git a/tv/cec/2.0/default/android.hardware.tv.cec@2.0-service.rc b/tv/cec/2.0/default/android.hardware.tv.cec@2.0-service.rc
new file mode 100644
index 0000000..1e8cd80
--- /dev/null
+++ b/tv/cec/2.0/default/android.hardware.tv.cec@2.0-service.rc
@@ -0,0 +1,4 @@
+service vendor.cec-hal-2-0 /vendor/bin/hw/android.hardware.tv.cec@2.0-service
+    class hal
+    user system
+    group system
diff --git a/tv/cec/2.0/default/android.hardware.tv.cec@2.0-service.xml b/tv/cec/2.0/default/android.hardware.tv.cec@2.0-service.xml
new file mode 100644
index 0000000..61fb1bb
--- /dev/null
+++ b/tv/cec/2.0/default/android.hardware.tv.cec@2.0-service.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.tv.cec</name>
+        <transport>hwbinder</transport>
+        <version>2.0</version>
+        <interface>
+            <name>IHdmiCec</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/tv/cec/2.0/default/service.cpp b/tv/cec/2.0/default/service.cpp
new file mode 100644
index 0000000..dacc38c
--- /dev/null
+++ b/tv/cec/2.0/default/service.cpp
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.tv.cec@2.0-service"
+
+#include <android/hardware/tv/cec/2.0/IHdmiCec.h>
+#include <hidl/LegacySupport.h>
+
+using android::hardware::defaultPassthroughServiceImplementation;
+using android::hardware::tv::cec::V2_0::IHdmiCec;
+
+int main() {
+    return defaultPassthroughServiceImplementation<IHdmiCec>();
+}
diff --git a/tv/cec/2.0/types.hal b/tv/cec/2.0/types.hal
new file mode 100644
index 0000000..cad6c39
--- /dev/null
+++ b/tv/cec/2.0/types.hal
@@ -0,0 +1,548 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.tv.cec@2.0;
+
+import android.hidl.safe_union@1.0;
+
+/**
+ * CEC device type as specified in CEC Table 11-7 of the CEC spec 2.0b.
+ */
+enum CecDeviceType : int32_t {
+    INACTIVE = -1,
+    TV = 0,
+    RECORDER = 1,
+    TUNER = 3,
+    PLAYBACK = 4,
+    AUDIO_SYSTEM = 5,
+    PURE_CEC_SWITCH = 6,
+    PROCESSOR = 7,
+    MAX = PROCESSOR,
+};
+
+/**
+ * CEC logical address as specified in CEC Table 11-9 of the CEC spec 2.0b.
+ */
+enum CecLogicalAddress : int32_t {
+    TV = 0,
+    RECORDER_1 = 1,
+    RECORDER_2 = 2,
+    TUNER_1 = 3,
+    PLAYBACK_1 = 4,
+    AUDIO_SYSTEM = 5,
+    TUNER_2 = 6,
+    TUNER_3 = 7,
+    PLAYBACK_2 = 8,
+    RECORDER_3 = 9,
+    TUNER_4 = 10,
+    PLAYBACK_3 = 11,
+    BACKUP_1 = 12, // backup1 for Playback/Recording/Tuner/Processor device
+    BACKUP_2 = 13, // backup2 for Playback/Recording/Tuner/Processor device
+    SPECIFIC_USE = 14,
+    UNREGISTERED = 15, // as Initiator address
+    BROADCAST = 15, // as Destination address
+};
+
+/**
+ * HDMI CEC message types.
+ *
+ * The assigned values represent opcode used in CEC frame as specified in
+ * Section 11.10 of the CEC spec 2.0b on top of Section CEC 15 of the CEC
+ * Spec 1.4b.
+ */
+enum CecMessageType : int32_t {
+    FEATURE_ABORT = 0x00,
+    IMAGE_VIEW_ON = 0x04,
+    TUNER_STEP_INCREMENT = 0x05,
+    TUNER_STEP_DECREMENT = 0x06,
+    TUNER_DEVICE_STATUS = 0x07,
+    GIVE_TUNER_DEVICE_STATUS = 0x08,
+    RECORD_ON = 0x09,
+    RECORD_STATUS = 0x0A,
+    RECORD_OFF = 0x0B,
+    TEXT_VIEW_ON = 0x0D,
+    RECORD_TV_SCREEN = 0x0F,
+    GIVE_DECK_STATUS = 0x1A,
+    DECK_STATUS = 0x1B,
+    SET_MENU_LANGUAGE = 0x32,
+    CLEAR_ANALOG_TIMER = 0x33,
+    SET_ANALOG_TIMER = 0x34,
+    TIMER_STATUS = 0x35,
+    STANDBY = 0x36,
+    PLAY = 0x41,
+    DECK_CONTROL = 0x42,
+    TIMER_CLEARED_STATUS = 0x43,
+    USER_CONTROL_PRESSED = 0x44,
+    USER_CONTROL_RELEASED = 0x45,
+    GIVE_OSD_NAME = 0x46,
+    SET_OSD_NAME = 0x47,
+    SET_OSD_STRING = 0x64,
+    SET_TIMER_PROGRAM_TITLE = 0x67,
+    SYSTEM_AUDIO_MODE_REQUEST = 0x70,
+    GIVE_AUDIO_STATUS = 0x71,
+    SET_SYSTEM_AUDIO_MODE = 0x72,
+    REPORT_AUDIO_STATUS = 0x7A,
+    GIVE_SYSTEM_AUDIO_MODE_STATUS = 0x7D,
+    SYSTEM_AUDIO_MODE_STATUS = 0x7E,
+    ROUTING_CHANGE = 0x80,
+    ROUTING_INFORMATION = 0x81,
+    ACTIVE_SOURCE = 0x82,
+    GIVE_PHYSICAL_ADDRESS = 0x83,
+    REPORT_PHYSICAL_ADDRESS = 0x84,
+    REQUEST_ACTIVE_SOURCE = 0x85,
+    SET_STREAM_PATH = 0x86,
+    DEVICE_VENDOR_ID = 0x87,
+    VENDOR_COMMAND = 0x89,
+    VENDOR_REMOTE_BUTTON_DOWN = 0x8A,
+    VENDOR_REMOTE_BUTTON_UP = 0x8B,
+    GIVE_DEVICE_VENDOR_ID = 0x8C,
+    MENU_REQUEST = 0x8D,
+    MENU_STATUS = 0x8E,
+    GIVE_DEVICE_POWER_STATUS = 0x8F,
+    REPORT_POWER_STATUS = 0x90,
+    GET_MENU_LANGUAGE = 0x91,
+    SELECT_ANALOG_SERVICE = 0x92,
+    SELECT_DIGITAL_SERVICE = 0x93,
+    SET_DIGITAL_TIMER = 0x97,
+    CLEAR_DIGITAL_TIMER = 0x99,
+    SET_AUDIO_RATE = 0x9A,
+    INACTIVE_SOURCE = 0x9D,
+    CEC_VERSION = 0x9E,
+    GET_CEC_VERSION = 0x9F,
+    VENDOR_COMMAND_WITH_ID = 0xA0,
+    CLEAR_EXTERNAL_TIMER = 0xA1,
+    SET_EXTERNAL_TIMER = 0xA2,
+    REPORT_SHORT_AUDIO_DESCRIPTOR = 0xA3,
+    REQUEST_SHORT_AUDIO_DESCRIPTOR = 0xA4,
+    GIVE_FEATURES = 0XA5,
+    REPORT_FEATURES = 0xA6,
+    REQUEST_CURRENT_LATENCY = 0xA7,
+    REPORT_CURRENT_LATENCY = 0xA8,
+    INITIATE_ARC = 0xC0,
+    REPORT_ARC_INITIATED = 0xC1,
+    REPORT_ARC_TERMINATED = 0xC2,
+    REQUEST_ARC_INITIATION = 0xC3,
+    REQUEST_ARC_TERMINATION = 0xC4,
+    TERMINATE_ARC = 0xC5,
+    ABORT = 0xFF,
+    POLLING_MESSAGE = 0xFFFFFF00, // used for cec polling message
+};
+
+/**
+ * Abort Reason as specified in CEC Table 29 of the CEC spec 1.4b.
+ */
+enum AbortReason : int32_t {
+    UNRECOGNIZED_MODE = 0,
+    NOT_IN_CORRECT_MODE = 1,
+    CANNOT_PROVIDE_SOURCE = 2,
+    INVALID_OPERAND = 3,
+    REFUSED = 4,
+    UNABLE_TO_DETERMINE = 5,
+};
+
+enum MaxLength : int32_t {
+    MESSAGE_BODY = 14,
+};
+
+struct CecMessage {
+    /** logical address of sender */
+    CecLogicalAddress initiator;
+
+    /** logical address of receiver */
+    CecLogicalAddress destination;
+
+    /** cec message type */
+    CecMessageType cecMessageType;
+
+    /**
+     * The maximum size of body is 14 (MaxLength::MESSAGE_BODY) as specified in
+     * the section 6 of the CEC Spec 1.4b. Overflowed data must be ignored.
+     */
+    vec<uint8_t> body;
+};
+
+/**
+ * error code used for send_message.
+ */
+enum SendMessageResult : int32_t {
+    SUCCESS = 0,
+    NACK = 1, // not acknowledged
+    BUSY = 2, // bus is busy
+    FAIL = 3,
+};
+
+/**
+ * CEC All Device Type Value as specified in Table 11-30 of the CEC spec 2.0b.
+ */
+enum CecAllDeviceTypeValue : uint8_t {
+    RESERVED_DEVICE_2 = 1 << 0,
+    RESERVED_DEVICE_1 = 1 << 1,
+    CEC_SWITCH_DEVICE = 1 << 2,
+    AUDIO_DEVICE = 1 << 3,
+    PLAYBACK_DEVICE = 1 << 4,
+    TUNER_DEVICE = 1 << 5,
+    RECORDING_DEVICE = 1 << 6,
+    TV_DEVICE   = 1 << 7,
+};
+
+/**
+ * CEC All Device Types
+ *
+ * It is a combination of all supported type from CecAllDeviceTypeValue.
+ * For example a record with tuner functionalitye,
+ * cecAllDeviceTypes = ((CecAllDeviceTypeValue::RECORDING_DEVICE)
+ *                     |(CecAllDeviceTypeValue::TUNER_DEVICE))
+ */
+typedef bitfield<CecAllDeviceTypeValue> CecAllDeviceTypes;
+
+/**
+ * CEC Versions as specified in CEC Table 11-30 of the CEC spec 2.0b.
+ */
+enum CecVersion : int32_t {
+    V_1_3_A   = 0x04,
+    V_1_4   = 0x05, // indicate CEC 1.4, 1.4a or 1.4b
+    V_2_0   = 0x06,
+};
+
+/**
+ * Device Feature
+ *
+ * It is specified in CEC Table 11-30 of the CEC spec 2.0b. As a uint32 there
+ * is room for future extensions aka DeviceFeature2 through DeviceFeature4.
+ */
+enum CecDeviceFeature : uint32_t {
+    RESERVED = 1 << 0,
+    SOURCE_SUPPORT_ARC_RX = 1 << 1,
+    SINK_SUPPORT_ARC_TX = 1 << 2,
+    SOURCE_SUPPORT_SET_AUDIO_RATE = 1 << 3,
+    SUPPORT_CONTROLLED_BY_DECK = 1 << 4,
+    TV_SUPPORT_SET_OSD_STRINGS = 1 << 5,
+    TV_SUPPORT_RECORD_TV_SCREEN = 1 << 6,
+};
+
+/**
+ * CEC Device Features
+ *
+ * It is a combination of all supported features from CecDeviceFeature.
+ * For example a TV with OSD and ARC capabilities,
+ *   CecDeviceFeatures = ((CecDeviceFeature::TV_SUPPORT_SET_OSD_STRINGS)
+ *                       |(CecDeviceFeature::SINK_SUPPORT_ARC_TX))
+ */
+typedef bitfield<CecDeviceFeature> CecDeviceFeatures;
+
+/**
+ * Remote Control Profile
+ *
+ * It is specified in CEC Table 11-30 of the CEC spec 2.0b.
+ */
+enum CecRcProfileId : uint8_t {
+    NONE = 0,   // TV doesn’t support any of these profiles
+    RC_PROFILE_1 = 0x02, // minimalistic zapper (low button count)
+    RC_PROFILE_2 = 0x06, // intermediate between profile 1 and profile 3
+    RC_PROFILE_3 = 0x0A, // typical TV remote
+    RC_PROFILE_4 = 0x0E, // extended form of profile 3
+};
+
+/**
+ * Remote Control Profile Source
+ *
+ * It is specified in CEC Table 11-30 of the CEC spec 2.0b.
+ */
+enum CecRcProfileSource : uint8_t {
+    MEDIA_CONTEXT_SENSITIVE = 1 << 0, // source can handle UI command 0x11
+    MEDIA_TO = 1 << 1, // source can handle UI command 0x10
+    CONTENTS = 1 << 2, // source can handle UI command 0x0B
+    DEVICE_SETUP = 1 << 3, // source can handle UI command 0x0A
+    DEVICE_ROOT = 1 << 4, // source can handle UI command 0x09
+    SOURCE_FLAG = 1 << 6, // Indicate the profile is for source
+};
+
+/**
+ * Remote Control Profile for either TV or Source.
+ */
+safe_union CecRcProfile1 {
+    /** CEC remote control profile for TV. */
+    CecRcProfileId profileId;
+
+    /* CEC remote control profile for source
+     *
+     * It is a combination of all supported profiles from CecRcProfileSource.
+     * For example a playback device support root menu and setup menu,
+     * profileSource = ((CecRcProfileSource::DEVICE_ROOT)
+     *                  |(CecRcProfileSource::DEVICE_SETUP)
+     *                  |(CecRcProfileSource::SOURCE_FLAG))
+     */
+    bitfield<CecRcProfileSource> profileSource;
+};
+
+/**
+ * CEC Remote Control Profiles
+ *
+ * CEC 2.0 only use one byte to represent Remote Control Profile.
+ */
+struct CecRcProfile {
+   CecRcProfile1 rcProfile1;
+};
+
+/**
+ * CEC device power states as specified in CEC Table 11-10 of the CEC spec 2.0b
+ */
+enum CecPowerState : int8_t {
+    ON = 0,
+    STANDBY = 1,
+    ON_TO_STANDBY = 2,
+    STANDBY_TO_ON = 4,
+    UNKNOWN = 0xFF, // some devices may not report power status
+};
+
+/** CEC physical address of device */
+typedef uint16_t CecPhysicalAddress;
+
+/**
+ * CEC device information
+ *
+ * It is initially built during addressing specified in CEC section 11.3 of
+ * the CEC spec 2.0b. It may be updated with cec devices's status changed.
+ */
+struct CecDeviceInfo {
+    /** CEC version which device supports */
+    CecVersion version;
+
+    /** CEC device primary type */
+    CecDeviceType devceType;
+
+    /** CEC all device types */
+    CecAllDeviceTypes allDeviceTypes;
+
+    /** CEC device features */
+    CecDeviceFeatures deviceFeatures;
+
+    /** CEC Device Remote Control Profile */
+    CecRcProfile rcProfile;
+
+    /** CEC Device Vendor ID */
+    uint32_t vendorId;
+
+    /** logical address of device */
+    CecLogicalAddress logicalAddress;
+
+    /** physical of device */
+    CecPhysicalAddress physicalAddress;
+
+    /** power status of device */
+    CecPowerState powerState;
+};
+
+/**
+ * Topology Event Type.
+ */
+enum CecTopologyEventType : int32_t {
+    DEVICE_ADDED,
+    DEVICE_REMOVED,
+    DEVICE_UPDATED,
+};
+
+/**
+ * Topology Event.
+ */
+struct CecTopologyEvent {
+    CecTopologyEventType eventType;
+    CecLogicalAddress logicalAddress;
+    CecPhysicalAddress physicalAddress;
+
+    /** true if the event is about the device which the system run on */
+    bool isHostDevice;
+};
+
+
+/**
+ * CEC UI Command Codes as specified in CEC Table 11-31 of the CEC spec 2.0b
+ */
+enum CecUICommandCodes : int32_t {
+    SELECT_OK = 0x00,
+    UP = 0x01,
+    DOWN = 0x02,
+    LEFT = 0x03,
+    RIGHT = 0x04,
+    RIGHT_UP = 0x05,
+    RIGHT_DOWN = 0x06,
+    LEFT_UP = 0x07,
+    LEFT_DOWN = 0x08,
+    DEVICE_ROOT_MENU = 0x09,
+    DEVICE_SETUP_MENU = 0x0A,
+    CONTENTS_MENU = 0x0B,
+    FAVORITE_MENU = 0x0C,
+    BACK = 0x0D,
+    MEDIA_TOP_MENU = 0x10,
+    MEDIA_CONTEXT_SENSITIVE_MENU = 0x11,
+    NUMBER_ENTRY_MODE = 0x1D,
+    NUMBER_11 = 0x1E,
+    NUMBER_12 = 0x1F,
+    NUMBER_0 = 0x20, // or NUMBER 10
+    NUMBER_1 = 0x21,
+    NUMBER_2 = 0x22,
+    NUMBER_3 = 0x23,
+    NUMBER_4 = 0x24,
+    NUMBER_5 = 0x25,
+    NUMBER_6 = 0x26,
+    NUMBER_7 = 0x27,
+    NUMBER_8 = 0x28,
+    NUMBER_9 = 0x29,
+    DOT = 0x2A,
+    ENTER = 0x2B,
+    CLEAR = 0x2C,
+    NEXT_FAVORITE = 0x2F,
+    CHANNEL_UP = 0x30,
+    CHANNEL_DOWN = 0x31,
+    PREVIOUS_CHANNEL = 0x32,
+    SOUND_SELECT = 0x33,
+    INPUT_SELECT = 0x34,
+    DISPLAY_INFORMATION = 0x35,
+    HELP = 0x36,
+    PAGE_UP = 0x37,
+    PAGE_DOWN = 0x38,
+    POWER = 0x40,
+    VOLUME_UP = 0x41,
+    VOLUME_DOWN = 0x42,
+    MUTE = 0x43,
+    PLAY = 0x44,
+    STOP = 0x45,
+    PAUSE = 0x46,
+    RECORD = 0x47,
+    REWIND = 0x48,
+    FAST_FORWARD = 0x49,
+    EJECT = 0x4A,
+    SKIP_FORWARD = 0x4B,
+    SKIP_BACKWARD = 0x4C,
+    STOP_RECORD = 0x4D,
+    PAUSE_RECORD = 0x4E,
+    ANGLE = 0x50,
+    SUB_PICTURE = 0x51,
+    VIDEO_ON_DEMAND = 0x52,
+    ELECTRONIC_PROGRAM_GUIDE = 0x53,
+    TIMER_PROGRAMMING = 0x54,
+    INITIAL_CONFIGURATION = 0x55,
+    SELECT_BROADCAST_TYPE = 0x56,
+    SELECT_SOUND_PRESENTATION = 0x57,
+    AUDIO_DESCRIPTION = 0x58,
+    INTERNET = 0x59,
+    THREE_DIMENSIONAL_MODE = 0x5A,
+    PLAY_FUNCTION = 0x60,
+    PAUSE_PLAY_FUNCTION = 0x61,
+    RECORD_FUNCTION = 0x62,
+    PAUSE_RECORD_FUNCTION = 0x63,
+    STOP_FUNCTION = 0x64,
+    MUTE_FUNCTION = 0x65,
+    RESTORE_VOLUME_FUNCTION = 0x66,
+    TUNE_FUNCTION = 0x67,
+    SELECT_MEDIA_FUNCTION = 0x68,
+    SELECT_AV_INPUT_FUNCTION = 0x69,
+    SELECT_AUDIO_INPUT_FUNCTION = 0x6A,
+    POWER_TOGGLE_FUNCTION = 0x6B,
+    POWER_OFF_FUNCTION = 0x6C,
+    POWER_ON_FUNCTION = 0x6D,
+    F1 = 0x71, // BLUE
+    F2 = 0x72, // RED
+    F3 = 0x73, // GREEN
+    F4 = 0x74, // YELLOW
+    F5 = 0x75,
+    DATA = 0x76,
+};
+
+/**
+ * HDMI port type.
+ */
+enum HdmiPortType : int32_t {
+    INPUT = 0,
+    OUTPUT = 1,
+};
+
+/**
+ * Options used for IHdmiCec.setOption()
+ */
+enum OptionKey : int32_t {
+    /**
+     * When set to false, HAL does not wake up the system upon receiving <Image
+     * View On> or <Text View On>. Used when user changes the TV settings to
+     * disable the auto TV on functionality.
+     * Deprecated since <Image View On> and <Text View On> become mandatory
+     * featrues for CEC device. Use ENABLE_CEC OptionKey to disable CEC
+     * functionality instead.
+     * True by Default
+     */
+    WAKEUP = 1,
+
+    /**
+     * When set to false, all the CEC commands are discarded. if logical address
+     * is ever used, it shall be released. Used when user changes the TV
+     * settings to disable CEC functionality.
+     * True by default.
+     *
+     */
+    ENABLE_CEC = 2,
+
+    /**
+     * Setting this flag to false means Android system must stop handling CEC
+     * service and yield the control over to the microprocessor that is powered
+     * on through the standby mode.The microprocessor shall keep current logical
+     * and physical address. It shall response POLLING_MESSAGE, GIVE_FEATURES,
+     * GIVE_DEVICE_POWER_STATUS,GIVE_DEVICE_VENDOR_ID and GIVE_PHYSICAL_ADDRESS
+     * to allow other CEC devices to build CEC devices map specified in CEC
+     * section 11.3 of the CEC spec 2.0b.
+     * When set to true, the system must gain the control over, hence telling
+     * the microprocessor to start forwarding CEC messages to Android system.
+     * For example, this may be called when system goes in and out of
+     * standby mode to notify the microprocessor that it should start/stop
+     * handling CEC commands on behalf of the system.
+     * True by default.
+     */
+    SYSTEM_CEC_CONTROL = 3,
+
+    /* Option 4 not used */
+};
+
+/**
+ * Hdmi port ID.
+ *
+ * It shall start from 1 which corresponds to HDMI "port 1".
+ */
+typedef uint32_t HdmiPortId;
+
+/** Hdmi hotplug event */
+struct HotplugEvent {
+    bool connected;
+    HdmiPortId portId;
+};
+
+/**
+ * HDMI port descriptor
+ */
+struct HdmiPortInfo {
+    HdmiPortType type;
+    HdmiPortId portId;
+    bool cecSupported;
+    bool arcSupported;
+    CecPhysicalAddress physicalAddress;
+};
+
+enum Result : int32_t {
+    SUCCESS = 0,
+    FAILURE_UNKNOWN = 1,
+    FAILURE_INVALID_ARGS = 2,
+    FAILURE_INVALID_STATE = 3,
+    FAILURE_NOT_SUPPORTED = 4,
+    FAILURE_BUSY = 5,
+};
diff --git a/update-base-files.sh b/update-base-files.sh
index 75d2be5..daaa530 100755
--- a/update-base-files.sh
+++ b/update-base-files.sh
@@ -36,6 +36,9 @@
 hidl-gen $options \
          -o $ANDROID_BUILD_TOP/system/core/include/system/graphics-base-v1.1.h \
          android.hardware.graphics.common@1.1
+hidl-gen $options \
+         -o $ANDROID_BUILD_TOP/system/core/include/system/graphics-base-v1.2.h \
+         android.hardware.graphics.common@1.2
 
 # system/media
 hidl-gen $options \
diff --git a/usb/1.2/Android.bp b/usb/1.2/Android.bp
new file mode 100644
index 0000000..55ffad0
--- /dev/null
+++ b/usb/1.2/Android.bp
@@ -0,0 +1,29 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.usb@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IUsb.hal",
+        "IUsbCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.usb@1.0",
+        "android.hardware.usb@1.1",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "ContaminantDetectionStatus",
+        "ContaminantProtectionMode",
+        "ContaminantProtectionStatus",
+        "PortStatus",
+        "Status",
+    ],
+    gen_java: true,
+    gen_java_constants: true,
+}
+
diff --git a/usb/1.2/IUsb.hal b/usb/1.2/IUsb.hal
new file mode 100644
index 0000000..ecc911e
--- /dev/null
+++ b/usb/1.2/IUsb.hal
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.usb@1.2;
+
+import android.hardware.usb@1.1::IUsb;
+
+/**
+ * The setCallback function in V1_0 is used to register the V1_2
+ * IUsbCallback object as well. The implementation can use the
+ * castFrom method to cast the IUsbCallback object.
+ */
+interface IUsb extends @1.1::IUsb {
+    /**
+     * When supportsEnableContaminantPresenceDetection is true,
+     * enableContaminantPresenceDetection enables/disables contaminant
+     * presence detection algorithm. Calling enableContaminantPresenceDetection
+     * when supportsEnableContaminantPresenceDetection is false does
+     * not have any effect.
+     * Change in contantaminant presence status should notify should
+     * be notified to the client via notifyPortStatusChange_1_2 through
+     * PortStatus.
+     *
+     * @param portName name of the port.
+     * @param enable true Enable contaminant presence detection algorithm.
+     *               false Disable contaminant presence detection algorithm.
+     */
+    oneway enableContaminantPresenceDetection(string portName, bool enable);
+
+    /**
+     * When supportsEnableContaminantPresenceProtection is true,
+     * enableContaminantPresenceProtection enables/disables contaminant
+     * presence protection algorithm. Calling
+     * enableContaminantPresenceProtection
+     * when supportsEnableContaminantPresenceProtection is false does
+     * not have any effect.
+     * Used to enable/disable contaminant presence protection algorithm.
+     * Enabling port protection algoritm must make the lower layers to autonomously
+     * act on taking the corresponding preventive measure mentioned at
+     * ContaminantProtectionModes when contaminant is detected on the USB Port.
+     * Calling this method with enable set to true must set to contaminantProtectionEnabled
+     * to true upon success and vice versa.
+     * currentContaminantProtectionMode should be updated whenever there is a
+     * change in the status of contaminant presence protection algorithm.
+     *
+     * @param portName name of the port.
+     * @param enable true Reduce capabilities of the port to protect port
+     *                    from damage due to contaminant presence.
+     *               false No action is taken upon contaminant presence.
+     */
+    oneway enableContaminantPresenceProtection(string portName, bool enable);
+};
diff --git a/usb/1.2/IUsbCallback.hal b/usb/1.2/IUsbCallback.hal
new file mode 100644
index 0000000..8cc16df
--- /dev/null
+++ b/usb/1.2/IUsbCallback.hal
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.usb@1.2;
+
+import android.hardware.usb@1.1::IUsbCallback;
+import android.hardware.usb@1.0::Status;
+
+/**
+ * Callback object used for all the IUsb async methods which expects a result.
+ * Caller is expected to register the callback object using setCallback method
+ * to receive updates on the PortStatus.
+ */
+interface IUsbCallback extends @1.1::IUsbCallback {
+    /**
+     * Used to convey the current port status to the caller.
+     * Must be called either when PortState changes due to the port partner or
+     * when caller requested for the PortStatus update through queryPortStatus.
+     *
+     * @param currentPortStatus vector object of current status(PortStatus
+     * of all the typeC ports in the device.
+     * @param retval SUCCESS when the required information was enquired form
+     *               kernel and the PortStatus_1_2 object was built.
+     *               ERROR otherwise.
+     */
+    oneway notifyPortStatusChange_1_2(vec<PortStatus> currentPortStatus,
+        @1.0::Status retval);
+};
+
diff --git a/usb/1.2/types.hal b/usb/1.2/types.hal
new file mode 100644
index 0000000..081a643
--- /dev/null
+++ b/usb/1.2/types.hal
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.usb@1.2;
+
+import android.hardware.usb@1.1::PortStatus_1_1;
+import android.hardware.usb@1.0::Status;
+
+enum Status : @1.0::Status {
+    /**
+     * Error value returned when the operation is not supported.
+     */
+    NOT_SUPPORTED = 4,
+};
+
+@export
+enum ContaminantDetectionStatus : uint32_t {
+    /**
+     * Contaminant presence detection is not supported.
+     */
+    NOT_SUPPORTED = 0,
+
+    /**
+     * Contaminant presence detection is supported but disabled.
+     */
+    DISABLED = 1,
+
+    /**
+     * Contaminant presence detection is enabled and contaminant not detected.
+     */
+    NOT_DETECTED = 2,
+
+    /**
+     * Contaminant presence detection is enabled and contaminant detected.
+     */
+    DETECTED = 3,
+};
+
+@export
+enum ContaminantProtectionMode : uint32_t {
+    /**
+     * No action performed upon detection of contaminant presence.
+     */
+    NONE = 0,
+
+    /**
+     * Upon detection of contaminant presence, Port is forced to sink only
+     * mode where a port shall only detect chargers until contaminant presence
+     * is no longer detected.
+     */
+    FORCE_SINK = 1 << 0,
+
+    /**
+     * Upon detection of contaminant presence, Port is forced to source only
+     * mode where a port shall only detect usb accessories such as headsets
+     * until contaminant presence is no longer detected.
+     */
+    FORCE_SOURCE = 1 << 1,
+
+    /**
+     * Upon detection of contaminant presence, port is disabled until contaminant
+     * presence is no longer detected. In the disabled state port will
+     * not respond to connection of chargers or usb accessories.
+     */
+    FORCE_DISABLE = 1 << 2,
+};
+
+@export
+enum ContaminantProtectionStatus : ContaminantProtectionMode {
+    /**
+     * Client disabled cotaminant protection by calling
+     * enableContaminantPresencePortProtection set to false. Low level drivers should
+     * not autmomously take any corrective action when contaminant presence is detected.
+     */
+    DISABLED = 1 << 3,
+};
+
+struct PortStatus {
+    PortStatus_1_1 status_1_1;
+
+    /**
+     * Contaminant presence protection modes supported by the port.
+     */
+    bitfield<ContaminantProtectionMode> supportedContaminantProtectionModes;
+
+    /**
+     * Client can enable/disable contaminant presence protection through
+     * enableContaminantPresenceProtection when true.
+     */
+    bool supportsEnableContaminantPresenceProtection;
+
+    /**
+     * Contaminant presence protection modes currently active for the port.
+     */
+    ContaminantProtectionStatus contaminantProtectionStatus;
+
+    /**
+     * Client can enable/disable contaminant presence detection through
+     * enableContaminantPresenceDetection when true.
+     */
+    bool supportsEnableContaminantPresenceDetection;
+
+    /**
+     * Current status of contaminant detection algorithm.
+     */
+    ContaminantDetectionStatus contaminantDetectionStatus;
+};
diff --git a/usb/1.2/vts/OWNERS b/usb/1.2/vts/OWNERS
new file mode 100644
index 0000000..f60d39a
--- /dev/null
+++ b/usb/1.2/vts/OWNERS
@@ -0,0 +1,2 @@
+badhri@google.com
+yim@google.com
diff --git a/usb/1.2/vts/functional/Android.bp b/usb/1.2/vts/functional/Android.bp
new file mode 100644
index 0000000..761d37f
--- /dev/null
+++ b/usb/1.2/vts/functional/Android.bp
@@ -0,0 +1,28 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalUsbV1_2TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalUsbV1_2TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.usb@1.0",
+        "android.hardware.usb@1.1",
+        "android.hardware.usb@1.2",
+    ],
+    test_suites: ["general-tests"],
+}
+
diff --git a/usb/1.2/vts/functional/VtsHalUsbV1_2TargetTest.cpp b/usb/1.2/vts/functional/VtsHalUsbV1_2TargetTest.cpp
new file mode 100644
index 0000000..7b3dea9
--- /dev/null
+++ b/usb/1.2/vts/functional/VtsHalUsbV1_2TargetTest.cpp
@@ -0,0 +1,380 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VtsHalUsbV1_2TargetTest"
+#include <android-base/logging.h>
+
+#include <android/hardware/usb/1.2/IUsb.h>
+#include <android/hardware/usb/1.2/IUsbCallback.h>
+#include <android/hardware/usb/1.2/types.h>
+
+#include <VtsHalHidlTargetCallbackBase.h>
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <log/log.h>
+#include <stdlib.h>
+#include <chrono>
+#include <condition_variable>
+#include <mutex>
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::usb::V1_0::PortDataRole;
+using ::android::hardware::usb::V1_0::PortMode;
+using ::android::hardware::usb::V1_0::PortPowerRole;
+using ::android::hardware::usb::V1_0::PortRole;
+using ::android::hardware::usb::V1_0::PortRoleType;
+using ::android::hardware::usb::V1_0::Status;
+using ::android::hardware::usb::V1_1::PortMode_1_1;
+using ::android::hardware::usb::V1_1::PortStatus_1_1;
+using ::android::hardware::usb::V1_2::ContaminantDetectionStatus;
+using ::android::hardware::usb::V1_2::ContaminantProtectionMode;
+using ::android::hardware::usb::V1_2::ContaminantProtectionStatus;
+using ::android::hardware::usb::V1_2::IUsb;
+using ::android::hardware::usb::V1_2::IUsbCallback;
+using ::android::hardware::usb::V1_2::PortStatus;
+using ::android::hidl::base::V1_0::IBase;
+
+constexpr char kCallbackNameNotifyPortStatusChange_1_2[] = "notifyPortStatusChange_1_2";
+const int kCallbackIdentifier = 2;
+
+// Worst case wait time 20secs
+#define WAIT_FOR_TIMEOUT std::chrono::milliseconds(20000)
+
+class UsbClientCallbackArgs {
+   public:
+    // The last conveyed status of the USB ports.
+    // Stores information of currentt_data_role, power_role for all the USB ports
+    PortStatus usb_last_port_status;
+
+    // Status of the last role switch operation.
+    Status usb_last_status;
+
+    // Identifier for the usb callback object.
+    // Stores the cookie of the last invoked usb callback object.
+    int last_usb_cookie;
+};
+
+// Callback class for the USB HIDL hal.
+// Usb Hal will call this object upon role switch or port query.
+class UsbCallback : public ::testing::VtsHalHidlTargetCallbackBase<UsbClientCallbackArgs>,
+                    public IUsbCallback {
+    int cookie;
+
+   public:
+    UsbCallback(int cookie) : cookie(cookie){};
+
+    virtual ~UsbCallback() = default;
+
+    // V1_0 Callback method for the port status.
+    // This should not be called so not signalling the Test here assuming that
+    // the test thread will timeout
+    Return<void> notifyPortStatusChange(const hidl_vec<android::hardware::usb::V1_0::PortStatus>&
+                                        /* currentPortStatus */,
+                                        Status /* retval */) override {
+        return Void();
+    };
+
+    // V1_1 Callback method for the port status.
+    // This should not be called so not signalling the Test here assuming that
+    // the test thread will timeout
+    Return<void> notifyPortStatusChange_1_1(const hidl_vec<PortStatus_1_1>& /* currentPortStatus */,
+                                            Status /* retval */) override {
+        return Void();
+    }
+
+    // This callback method should be used.
+    Return<void> notifyPortStatusChange_1_2(const hidl_vec<PortStatus>& currentPortStatus,
+                                            Status retval) override {
+        UsbClientCallbackArgs arg;
+        if (retval == Status::SUCCESS) {
+            arg.usb_last_port_status.status_1_1.status.supportedModes =
+                    currentPortStatus[0].status_1_1.status.supportedModes;
+            arg.usb_last_port_status.status_1_1.status.currentMode =
+                    currentPortStatus[0].status_1_1.status.currentMode;
+            arg.usb_last_port_status.status_1_1.status.portName =
+                    currentPortStatus[0].status_1_1.status.portName;
+            arg.usb_last_port_status.contaminantDetectionStatus =
+                    currentPortStatus[0].contaminantDetectionStatus;
+            arg.usb_last_port_status.contaminantProtectionStatus =
+                    currentPortStatus[0].contaminantProtectionStatus;
+            arg.usb_last_port_status.supportsEnableContaminantPresenceProtection =
+                    currentPortStatus[0].supportsEnableContaminantPresenceProtection;
+            arg.usb_last_port_status.supportsEnableContaminantPresenceDetection =
+                    currentPortStatus[0].supportsEnableContaminantPresenceDetection;
+            arg.usb_last_port_status.supportedContaminantProtectionModes =
+                    currentPortStatus[0].supportedContaminantProtectionModes;
+        }
+        arg.usb_last_status = retval;
+        arg.last_usb_cookie = cookie;
+
+        NotifyFromCallback(kCallbackNameNotifyPortStatusChange_1_2, arg);
+        return Void();
+    }
+
+    // Callback method for the status of role switch operation.
+    // RoleSwitch operation has not changed since V1_0 so leaving
+    // the callback blank here.
+    Return<void> notifyRoleSwitchStatus(const hidl_string& /*portName*/,
+                                        const PortRole& /*newRole*/, Status /*retval*/) override {
+        return Void();
+    };
+};
+
+// Test environment for Usb HIDL HAL.
+class UsbHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static UsbHidlEnvironment* Instance() {
+        static UsbHidlEnvironment* instance = new UsbHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IUsb>(); }
+};
+
+// The main test class for the USB hidl HAL
+class UsbHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        ALOGI(__FUNCTION__);
+        usb = ::testing::VtsHalHidlTargetTestBase::getService<IUsb>();
+        ASSERT_NE(usb, nullptr);
+
+        usb_cb_2 = new UsbCallback(kCallbackIdentifier);
+        ASSERT_NE(usb_cb_2, nullptr);
+        usb_cb_2->SetWaitTimeout(kCallbackNameNotifyPortStatusChange_1_2, WAIT_FOR_TIMEOUT);
+        Return<void> ret = usb->setCallback(usb_cb_2);
+        ASSERT_TRUE(ret.isOk());
+    }
+
+    virtual void TearDown() override { ALOGI("Teardown"); }
+
+    // USB hidl hal Proxy
+    sp<IUsb> usb;
+
+    // Callback objects for usb hidl
+    // Methods of these objects are called to notify port status updates.
+    sp<UsbCallback> usb_cb_1;
+    sp<UsbCallback> usb_cb_2;
+};
+
+/*
+ * Test to see if setCallback on V1_1 callback object succeeds.
+ * Callback oject is created and registered.
+ * Check to see if the hidl transaction succeeded.
+ */
+TEST_F(UsbHidlTest, setCallback) {
+    usb_cb_1 = new UsbCallback(1);
+    ASSERT_NE(usb_cb_1, nullptr);
+    Return<void> ret = usb->setCallback(usb_cb_1);
+    ASSERT_TRUE(ret.isOk());
+}
+
+/*
+ * Check to see if querying type-c
+ * port status succeeds.
+ * HAL service should call notifyPortStatusChange_1_2
+ * instead of notifyPortStatusChange of V1_0/V1_1 interface
+ */
+TEST_F(UsbHidlTest, queryPortStatus) {
+    Return<void> ret = usb->queryPortStatus();
+    ASSERT_TRUE(ret.isOk());
+    auto res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+    EXPECT_TRUE(res.no_timeout);
+    EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+    EXPECT_EQ(PortMode::NONE, res.args->usb_last_port_status.status_1_1.status.currentMode);
+    EXPECT_EQ(PortMode::NONE, res.args->usb_last_port_status.status_1_1.status.supportedModes);
+    EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+}
+
+/*
+ * supportedContaminantProtectionModes is immutable.
+ * Check if supportedContaminantProtectionModes changes across queryPortStatus
+ * call.
+ */
+TEST_F(UsbHidlTest, checkSupportedContaminantProtectionModes) {
+    Return<void> ret = usb->queryPortStatus();
+    ASSERT_TRUE(ret.isOk());
+    auto res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+    EXPECT_TRUE(res.no_timeout);
+    EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+    EXPECT_EQ(PortMode::NONE, res.args->usb_last_port_status.status_1_1.status.currentMode);
+    EXPECT_EQ(PortMode::NONE, res.args->usb_last_port_status.status_1_1.status.supportedModes);
+    EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+
+    uint32_t supportedContaminantProtectionModes = static_cast<uint32_t>(
+            res.args->usb_last_port_status.supportedContaminantProtectionModes);
+    for (int runs = 1; runs <= 10; runs++) {
+        ret = usb->queryPortStatus();
+        ASSERT_TRUE(ret.isOk());
+        res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+        EXPECT_TRUE(res.no_timeout);
+        EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+        EXPECT_EQ(PortMode::NONE, res.args->usb_last_port_status.status_1_1.status.currentMode);
+        EXPECT_EQ(PortMode::NONE, res.args->usb_last_port_status.status_1_1.status.supportedModes);
+        EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+        EXPECT_EQ(supportedContaminantProtectionModes,
+                  static_cast<uint32_t>(
+                          res.args->usb_last_port_status.supportedContaminantProtectionModes));
+    }
+}
+
+/*
+ * When supportsEnableContaminantPresenceDetection is set false,
+ * enableContaminantPresenceDetection should not enable/disable
+ * contaminantPresenceProtection.
+ */
+TEST_F(UsbHidlTest, presenceDetectionSupportedCheck) {
+    Return<void> ret = usb->queryPortStatus();
+    ASSERT_TRUE(ret.isOk());
+    auto res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+    EXPECT_TRUE(res.no_timeout);
+    EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+    EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+
+    if (!res.args->usb_last_port_status.supportsEnableContaminantPresenceDetection) {
+        for (int runs = 1; runs <= 10; runs++) {
+            bool currentStatus = !(res.args->usb_last_port_status.contaminantDetectionStatus ==
+                                   ContaminantDetectionStatus::DISABLED);
+
+            ret = usb->enableContaminantPresenceDetection(
+                    res.args->usb_last_port_status.status_1_1.status.portName, !currentStatus);
+            ASSERT_TRUE(ret.isOk());
+
+            res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+            EXPECT_TRUE(res.no_timeout);
+            EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+            EXPECT_EQ(currentStatus, !(res.args->usb_last_port_status.contaminantDetectionStatus ==
+                                       ContaminantDetectionStatus::DISABLED));
+        }
+    }
+}
+
+/*
+ * enableContaminantPresenceDetection should succeed atleast 90% when supported.
+ */
+TEST_F(UsbHidlTest, contaminantPresenceDetectionStability) {
+    int successCount = 0;
+    bool currentStatus;
+    bool supported = true;
+
+    Return<void> ret = usb->queryPortStatus();
+    ASSERT_TRUE(ret.isOk());
+    auto res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+    EXPECT_TRUE(res.no_timeout);
+    EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+    EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+
+    if (!res.args->usb_last_port_status.supportsEnableContaminantPresenceDetection) return;
+
+    for (int count = 1; count <= 10; count++) {
+        currentStatus = !(res.args->usb_last_port_status.contaminantDetectionStatus ==
+                          ContaminantDetectionStatus::DISABLED);
+
+        ret = usb->enableContaminantPresenceDetection(
+                res.args->usb_last_port_status.status_1_1.status.portName, !currentStatus);
+        ASSERT_TRUE(ret.isOk());
+        res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+        EXPECT_TRUE(res.no_timeout);
+        EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+        if (!currentStatus == !(res.args->usb_last_port_status.contaminantDetectionStatus ==
+                                ContaminantDetectionStatus::DISABLED))
+            successCount++;
+    }
+
+    if (!supported) EXPECT_GE(successCount, 9);
+}
+
+/*
+ * When supportsEnableContaminantPresenceProtection is set false,
+ * enableContaminantPresenceProtection should not enable/disable
+ * contaminantPresenceProtection.
+ */
+TEST_F(UsbHidlTest, presenceProtectionSupportedCheck) {
+    Return<void> ret = usb->queryPortStatus();
+    ASSERT_TRUE(ret.isOk());
+    auto res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+    EXPECT_TRUE(res.no_timeout);
+    EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+    EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+
+    if (!res.args->usb_last_port_status.supportsEnableContaminantPresenceProtection) {
+        for (int runs = 1; runs <= 10; runs++) {
+            bool currentStatus = !(res.args->usb_last_port_status.contaminantProtectionStatus ==
+                                   ContaminantProtectionStatus::DISABLED);
+
+            ret = usb->enableContaminantPresenceProtection(
+                    res.args->usb_last_port_status.status_1_1.status.portName, !currentStatus);
+            ASSERT_TRUE(ret.isOk());
+
+            res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+            EXPECT_TRUE(res.no_timeout);
+            EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+            EXPECT_EQ(currentStatus, !(res.args->usb_last_port_status.contaminantProtectionStatus ==
+                                       ContaminantProtectionStatus::DISABLED));
+        }
+    }
+}
+
+/*
+ * enableContaminantPresenceProtection should succeed atleast 90% when supported.
+ */
+TEST_F(UsbHidlTest, contaminantPresenceProtectionStability) {
+    int successCount = 0;
+    bool currentStatus;
+    bool supported = true;
+
+    Return<void> ret = usb->queryPortStatus();
+    ASSERT_TRUE(ret.isOk());
+    auto res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+    EXPECT_TRUE(res.no_timeout);
+    EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+    EXPECT_EQ(Status::SUCCESS, res.args->usb_last_status);
+
+    if (!res.args->usb_last_port_status.supportsEnableContaminantPresenceProtection) return;
+
+    for (int count = 1; count <= 10; count++) {
+        currentStatus = !(res.args->usb_last_port_status.contaminantProtectionStatus ==
+                          ContaminantProtectionStatus::DISABLED);
+
+        ret = usb->enableContaminantPresenceProtection(
+                res.args->usb_last_port_status.status_1_1.status.portName, !currentStatus);
+        ASSERT_TRUE(ret.isOk());
+        res = usb_cb_2->WaitForCallback(kCallbackNameNotifyPortStatusChange_1_2);
+        EXPECT_TRUE(res.no_timeout);
+        EXPECT_EQ(kCallbackIdentifier, res.args->last_usb_cookie);
+        if (!currentStatus == !(res.args->usb_last_port_status.contaminantProtectionStatus ==
+                                ContaminantProtectionStatus::DISABLED))
+            successCount++;
+    }
+
+    if (!supported) EXPECT_GE(successCount, 9);
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(UsbHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    UsbHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
diff --git a/vibrator/1.3/Android.bp b/vibrator/1.3/Android.bp
new file mode 100644
index 0000000..28370d6
--- /dev/null
+++ b/vibrator/1.3/Android.bp
@@ -0,0 +1,20 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.vibrator@1.3",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IVibrator.hal",
+    ],
+    interfaces: [
+        "android.hardware.vibrator@1.0",
+        "android.hardware.vibrator@1.1",
+        "android.hardware.vibrator@1.2",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+
diff --git a/vibrator/1.3/IVibrator.hal b/vibrator/1.3/IVibrator.hal
new file mode 100644
index 0000000..01c2801
--- /dev/null
+++ b/vibrator/1.3/IVibrator.hal
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.vibrator@1.3;
+
+import @1.0::Status;
+import @1.2::IVibrator;
+
+interface IVibrator extends @1.2::IVibrator {
+  /**
+   * Returns whether the vibrator supports control through an alternate interface.
+   */
+  supportsExternalControl() generates (bool supports);
+
+  /**
+   * Enables/disables control override of vibrator to audio.
+   *
+   * When this API is set, the vibrator control should be ceded to audio system
+   * for haptic audio. While this is enabled, issuing of other commands to control
+   * the vibrator is unsupported and the resulting behavior is undefined. Amplitude
+   * control may or may not be supported and is reflected in the return value of
+   * supportsAmplitudeControl() while this is enabled. When this is disabled, the
+   * vibrator should resume to an off state.
+   *
+   * @param enabled Whether external control should be enabled or disabled.
+   * @return status Whether the command was successful or not. Must return
+   *                Status::UNSUPPORTED_OPERATION if external control is
+   *                not supported by the device.
+   */
+  setExternalControl(bool enabled) generates (Status status);
+};
diff --git a/vibrator/1.3/example/Android.bp b/vibrator/1.3/example/Android.bp
new file mode 100644
index 0000000..36f2ff8
--- /dev/null
+++ b/vibrator/1.3/example/Android.bp
@@ -0,0 +1,34 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_binary {
+    name: "android.hardware.vibrator@1.3-service.example",
+    vendor: true,
+    relative_install_path: "hw",
+    init_rc: ["android.hardware.vibrator@1.3-service.example.rc"],
+    vintf_fragments: ["android.hardware.vibrator@1.3-service.example.xml"],
+    srcs: ["service.cpp", "Vibrator.cpp"],
+    cflags: ["-Wall", "-Werror"],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libutils",
+        "android.hardware.vibrator@1.0",
+        "android.hardware.vibrator@1.1",
+        "android.hardware.vibrator@1.2",
+        "android.hardware.vibrator@1.3",
+    ],
+}
diff --git a/vibrator/1.3/example/Vibrator.cpp b/vibrator/1.3/example/Vibrator.cpp
new file mode 100644
index 0000000..bb9a057
--- /dev/null
+++ b/vibrator/1.3/example/Vibrator.cpp
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VibratorService"
+
+#include <log/log.h>
+
+#include "Vibrator.h"
+
+namespace android {
+namespace hardware {
+namespace vibrator {
+namespace V1_3 {
+namespace implementation {
+
+static constexpr uint32_t MS_PER_S = 1000;
+static constexpr uint32_t NS_PER_MS = 1000000;
+
+Vibrator::Vibrator() {
+    sigevent se{};
+    se.sigev_notify = SIGEV_THREAD;
+    se.sigev_value.sival_ptr = this;
+    se.sigev_notify_function = timerCallback;
+    se.sigev_notify_attributes = nullptr;
+
+    if (timer_create(CLOCK_REALTIME, &se, &mTimer) < 0) {
+        ALOGE("Can not create timer!%s", strerror(errno));
+    }
+}
+
+// Methods from ::android::hardware::vibrator::V1_0::IVibrator follow.
+
+Return<Status> Vibrator::on(uint32_t timeoutMs) {
+    return activate(timeoutMs);
+}
+
+Return<Status> Vibrator::off() {
+    return activate(0);
+}
+
+Return<bool> Vibrator::supportsAmplitudeControl() {
+    return true;
+}
+
+Return<Status> Vibrator::setAmplitude(uint8_t amplitude) {
+    ALOGI("Amplitude: %u -> %u\n", mAmplitude, amplitude);
+    mAmplitude = amplitude;
+    return Status::OK;
+}
+
+Return<void> Vibrator::perform(V1_0::Effect effect, EffectStrength strength, perform_cb _hidl_cb) {
+    return perform_1_1(static_cast<V1_1::Effect_1_1>(effect), strength, _hidl_cb);
+}
+
+// Methods from ::android::hardware::vibrator::V1_1::IVibrator follow.
+
+Return<void> Vibrator::perform_1_1(V1_1::Effect_1_1 effect, EffectStrength strength,
+                                   perform_cb _hidl_cb) {
+    return perform_1_2(static_cast<V1_2::Effect>(effect), strength, _hidl_cb);
+}
+
+// Methods from ::android::hardware::vibrator::V1_2::IVibrator follow.
+
+Return<void> Vibrator::perform_1_2(Effect effect, EffectStrength strength, perform_cb _hidl_cb) {
+    uint8_t amplitude;
+    uint32_t ms;
+    Status status;
+
+    ALOGI("Perform: Effect %s\n", effectToName(effect));
+
+    amplitude = strengthToAmplitude(strength);
+    setAmplitude(amplitude);
+
+    ms = effectToMs(effect);
+    status = activate(ms);
+
+    _hidl_cb(status, ms);
+
+    return Void();
+}
+
+// Methods from ::android::hardware::vibrator::V1_3::IVibrator follow.
+
+Return<bool> Vibrator::supportsExternalControl() {
+    return true;
+}
+
+Return<Status> Vibrator::setExternalControl(bool enabled) {
+    if (mEnabled) {
+        ALOGW("Setting external control while the vibrator is enabled is unsupported!");
+        return Status::UNSUPPORTED_OPERATION;
+    } else {
+        ALOGI("ExternalControl: %s -> %s\n", mExternalControl ? "true" : "false",
+              enabled ? "true" : "false");
+        mExternalControl = enabled;
+        return Status::OK;
+    }
+}
+
+// Private methods follow.
+
+Status Vibrator::enable(bool enabled) {
+    if (mExternalControl) {
+        ALOGW("Enabling/disabling while the vibrator is externally controlled is unsupported!");
+        return Status::UNSUPPORTED_OPERATION;
+    } else {
+        ALOGI("Enabled: %s -> %s\n", mEnabled ? "true" : "false", enabled ? "true" : "false");
+        mEnabled = enabled;
+        return Status::OK;
+    }
+}
+
+Status Vibrator::activate(uint32_t ms) {
+    std::lock_guard<std::mutex> lock{mMutex};
+    Status status = Status::OK;
+
+    if (ms > 0) {
+        status = enable(true);
+        if (status != Status::OK) {
+            return status;
+        }
+    }
+
+    itimerspec ts{};
+    ts.it_value.tv_sec = ms / MS_PER_S;
+    ts.it_value.tv_nsec = ms % MS_PER_S * NS_PER_MS;
+
+    if (timer_settime(mTimer, 0, &ts, nullptr) < 0) {
+        ALOGE("Can not set timer!");
+        status = Status::UNKNOWN_ERROR;
+    }
+
+    if ((status != Status::OK) || !ms) {
+        Status _status;
+
+        _status = enable(false);
+
+        if (status == Status::OK) {
+            status = _status;
+        }
+    }
+
+    return status;
+}
+
+void Vibrator::timeout() {
+    std::lock_guard<std::mutex> lock{mMutex};
+    itimerspec ts{};
+
+    if (timer_gettime(mTimer, &ts) < 0) {
+        ALOGE("Can not read timer!");
+    }
+
+    if (ts.it_value.tv_sec == 0 && ts.it_value.tv_nsec == 0) {
+        enable(false);
+    }
+}
+
+void Vibrator::timerCallback(union sigval sigval) {
+    static_cast<Vibrator*>(sigval.sival_ptr)->timeout();
+}
+
+const char* Vibrator::effectToName(Effect effect) {
+    return toString(effect).c_str();
+}
+
+uint32_t Vibrator::effectToMs(Effect effect) {
+    switch (effect) {
+        case Effect::CLICK:
+            return 10;
+        case Effect::DOUBLE_CLICK:
+            return 15;
+        case Effect::TICK:
+            return 5;
+        case Effect::THUD:
+            return 5;
+        case Effect::POP:
+            return 5;
+        case Effect::HEAVY_CLICK:
+            return 10;
+        case Effect::RINGTONE_1:
+            return 30000;
+        case Effect::RINGTONE_2:
+            return 30000;
+        case Effect::RINGTONE_3:
+            return 30000;
+        case Effect::RINGTONE_4:
+            return 30000;
+        case Effect::RINGTONE_5:
+            return 30000;
+        case Effect::RINGTONE_6:
+            return 30000;
+        case Effect::RINGTONE_7:
+            return 30000;
+        case Effect::RINGTONE_8:
+            return 30000;
+        case Effect::RINGTONE_9:
+            return 30000;
+        case Effect::RINGTONE_10:
+            return 30000;
+        case Effect::RINGTONE_11:
+            return 30000;
+        case Effect::RINGTONE_12:
+            return 30000;
+        case Effect::RINGTONE_13:
+            return 30000;
+        case Effect::RINGTONE_14:
+            return 30000;
+        case Effect::RINGTONE_15:
+            return 30000;
+    }
+}
+
+uint8_t Vibrator::strengthToAmplitude(EffectStrength strength) {
+    switch (strength) {
+        case EffectStrength::LIGHT:
+            return 128;
+        case EffectStrength::MEDIUM:
+            return 192;
+        case EffectStrength::STRONG:
+            return 255;
+    }
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace vibrator
+}  // namespace hardware
+}  // namespace android
diff --git a/vibrator/1.3/example/Vibrator.h b/vibrator/1.3/example/Vibrator.h
new file mode 100644
index 0000000..a931b63
--- /dev/null
+++ b/vibrator/1.3/example/Vibrator.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ANDROID_HARDWARE_VIBRATOR_V1_3_VIBRATOR_H
+#define ANDROID_HARDWARE_VIBRATOR_V1_3_VIBRATOR_H
+
+#include <android/hardware/vibrator/1.3/IVibrator.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace vibrator {
+namespace V1_3 {
+namespace implementation {
+
+using android::hardware::vibrator::V1_0::EffectStrength;
+using android::hardware::vibrator::V1_0::Status;
+using android::hardware::vibrator::V1_2::Effect;
+
+class Vibrator : public IVibrator {
+  public:
+    Vibrator();
+
+    // Methods from ::android::hardware::vibrator::V1_0::IVibrator follow.
+    Return<Status> on(uint32_t timeoutMs) override;
+    Return<Status> off() override;
+    Return<bool> supportsAmplitudeControl() override;
+    Return<Status> setAmplitude(uint8_t amplitude) override;
+    Return<void> perform(V1_0::Effect effect, EffectStrength strength,
+                         perform_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::vibrator::V1_1::IVibrator follow.
+    Return<void> perform_1_1(V1_1::Effect_1_1 effect, EffectStrength strength,
+                             perform_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::vibrator::V1_2::IVibrator follow.
+    Return<void> perform_1_2(Effect effect, EffectStrength strength, perform_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::vibrator::V1_3::IVibrator follow.
+    Return<bool> supportsExternalControl() override;
+    Return<Status> setExternalControl(bool enabled) override;
+
+  private:
+    Status enable(bool enabled);
+    Status activate(uint32_t ms);
+    void timeout();
+
+    static void timerCallback(union sigval sigval);
+    static const char* effectToName(Effect effect);
+    static uint32_t effectToMs(Effect effect);
+    static uint8_t strengthToAmplitude(EffectStrength strength);
+
+  private:
+    bool mEnabled{false};
+    uint8_t mAmplitude{UINT8_MAX};
+    bool mExternalControl{false};
+    std::mutex mMutex;
+    timer_t mTimer{nullptr};
+};
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace vibrator
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_VIBRATOR_V1_3_VIBRATOR_H
diff --git a/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.rc b/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.rc
new file mode 100644
index 0000000..ed7a562
--- /dev/null
+++ b/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.rc
@@ -0,0 +1,4 @@
+service vendor.vibrator-1-3 /vendor/bin/hw/android.hardware.vibrator@1.3-service.example
+    class hal
+    user system
+    group system
diff --git a/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.xml b/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.xml
new file mode 100644
index 0000000..172aa21
--- /dev/null
+++ b/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.vibrator</name>
+        <transport>hwbinder</transport>
+        <version>1.3</version>
+        <interface>
+            <name>IVibrator</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/vibrator/1.3/example/service.cpp b/vibrator/1.3/example/service.cpp
new file mode 100644
index 0000000..449996e
--- /dev/null
+++ b/vibrator/1.3/example/service.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "android.hardware.vibrator@1.3-service.example"
+
+#include <android/hardware/vibrator/1.3/IVibrator.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "Vibrator.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::vibrator::V1_3::IVibrator;
+using android::hardware::vibrator::V1_3::implementation::Vibrator;
+using namespace android;
+
+status_t registerVibratorService() {
+    sp<IVibrator> vibrator = new Vibrator();
+
+    return vibrator->registerAsService();
+}
+
+int main() {
+    configureRpcThreadpool(1, true);
+    status_t status = registerVibratorService();
+
+    if (status != OK) {
+        return status;
+    }
+
+    joinRpcThreadpool();
+
+    return 1;
+}
diff --git a/vibrator/1.3/vts/functional/Android.bp b/vibrator/1.3/vts/functional/Android.bp
new file mode 100644
index 0000000..5b4c893
--- /dev/null
+++ b/vibrator/1.3/vts/functional/Android.bp
@@ -0,0 +1,29 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalVibratorV1_3TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalVibratorV1_3TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.vibrator@1.0",
+        "android.hardware.vibrator@1.1",
+        "android.hardware.vibrator@1.2",
+        "android.hardware.vibrator@1.3",
+    ],
+    test_suites: ["general-tests"],
+}
+
diff --git a/vibrator/1.3/vts/functional/VtsHalVibratorV1_3TargetTest.cpp b/vibrator/1.3/vts/functional/VtsHalVibratorV1_3TargetTest.cpp
new file mode 100644
index 0000000..a67d1dc
--- /dev/null
+++ b/vibrator/1.3/vts/functional/VtsHalVibratorV1_3TargetTest.cpp
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "vibrator_hidl_hal_test"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <android-base/logging.h>
+#include <android/hardware/vibrator/1.0/types.h>
+#include <android/hardware/vibrator/1.3/IVibrator.h>
+#include <unistd.h>
+
+using ::android::sp;
+using ::android::hardware::vibrator::V1_0::Status;
+using ::android::hardware::vibrator::V1_3::IVibrator;
+
+// Test environment for Vibrator HIDL HAL.
+class VibratorHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static VibratorHidlEnvironment* Instance() {
+        static VibratorHidlEnvironment* instance = new VibratorHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IVibrator>(); }
+
+   private:
+    VibratorHidlEnvironment() {}
+};
+
+// The main test class for VIBRATOR HIDL HAL 1.3.
+class VibratorHidlTest_1_3 : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        vibrator = ::testing::VtsHalHidlTargetTestBase::getService<IVibrator>(
+            VibratorHidlEnvironment::Instance()->getServiceName<IVibrator>());
+        ASSERT_NE(vibrator, nullptr);
+    }
+
+    virtual void TearDown() override {}
+
+    sp<IVibrator> vibrator;
+};
+
+TEST_F(VibratorHidlTest_1_3, ChangeVibrationalExternalControl) {
+    if (vibrator->supportsExternalControl()) {
+        EXPECT_EQ(Status::OK, vibrator->setExternalControl(true));
+        sleep(1);
+        EXPECT_EQ(Status::OK, vibrator->setExternalControl(false));
+        sleep(1);
+    }
+}
+
+TEST_F(VibratorHidlTest_1_3, SetExternalControlReturnUnsupportedOperationIfNotSupported) {
+    if (!vibrator->supportsExternalControl()) {
+        EXPECT_EQ(Status::UNSUPPORTED_OPERATION, vibrator->setExternalControl(true));
+    }
+}
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(VibratorHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    VibratorHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/wifi/1.2/default/OWNERS b/wifi/1.0/vts/OWNERS
similarity index 100%
copy from wifi/1.2/default/OWNERS
copy to wifi/1.0/vts/OWNERS
diff --git a/wifi/1.0/vts/functional/Android.bp b/wifi/1.0/vts/functional/Android.bp
index d7c84cc..397ad17 100644
--- a/wifi/1.0/vts/functional/Android.bp
+++ b/wifi/1.0/vts/functional/Android.bp
@@ -45,6 +45,9 @@
     static_libs: [
         "VtsHalWifiV1_0TargetTestUtil",
         "android.hardware.wifi@1.0",
+        "android.hardware.wifi@1.1",
+        "android.hardware.wifi@1.2",
+        "android.hardware.wifi@1.3",
     ],
     test_suites: ["general-tests"],
 }
diff --git a/wifi/1.0/vts/functional/wifi_ap_iface_hidl_test.cpp b/wifi/1.0/vts/functional/wifi_ap_iface_hidl_test.cpp
index c0af30b..e5762f2 100644
--- a/wifi/1.0/vts/functional/wifi_ap_iface_hidl_test.cpp
+++ b/wifi/1.0/vts/functional/wifi_ap_iface_hidl_test.cpp
@@ -29,17 +29,23 @@
 using ::android::hardware::wifi::V1_0::WifiStatusCode;
 using ::android::sp;
 
+extern WifiHidlEnvironment* gEnv;
+
 /**
  * Fixture to use for all AP Iface HIDL interface tests.
  */
 class WifiApIfaceHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     virtual void SetUp() override {
+        if (!gEnv->isSoftApOn) return;
         wifi_ap_iface_ = getWifiApIface();
         ASSERT_NE(nullptr, wifi_ap_iface_.get());
     }
 
-    virtual void TearDown() override { stopWifi(); }
+    virtual void TearDown() override {
+        if (!gEnv->isSoftApOn) return;
+        stopWifi();
+    }
 
    protected:
     sp<IWifiApIface> wifi_ap_iface_;
@@ -51,6 +57,7 @@
  * successfully created.
  */
 TEST(WifiApIfaceHidlTestNoFixture, Create) {
+    if (!gEnv->isSoftApOn) return;
     EXPECT_NE(nullptr, getWifiApIface().get());
     stopWifi();
 }
@@ -60,6 +67,7 @@
  * Ensures that the correct interface type is returned for AP interface.
  */
 TEST_F(WifiApIfaceHidlTest, GetType) {
+    if (!gEnv->isSoftApOn) return;
     const auto& status_and_type = HIDL_INVOKE(wifi_ap_iface_, getType);
     EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_type.first.code);
     EXPECT_EQ(IfaceType::AP, status_and_type.second);
@@ -71,6 +79,7 @@
  * status code.
  */
 TEST_F(WifiApIfaceHidlTest, SetCountryCode) {
+    if (!gEnv->isSoftApOn) return;
     const android::hardware::hidl_array<int8_t, 2> kCountryCode{
         std::array<int8_t, 2>{{0x55, 0x53}}};
     EXPECT_EQ(WifiStatusCode::SUCCESS,
@@ -82,6 +91,7 @@
  * Ensures that we can retrieve valid frequencies for 2.4 GHz band.
  */
 TEST_F(WifiApIfaceHidlTest, GetValidFrequenciesForBand) {
+    if (!gEnv->isSoftApOn) return;
     const auto& status_and_freqs = HIDL_INVOKE(
         wifi_ap_iface_, getValidFrequenciesForBand, WifiBand::BAND_24GHZ);
     EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_freqs.first.code);
diff --git a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
index d16f1e7..72cafd1 100644
--- a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
@@ -17,6 +17,7 @@
 #include <android-base/logging.h>
 
 #include <android/hardware/wifi/1.0/IWifiChip.h>
+#include <android/hardware/wifi/1.3/IWifiChip.h>
 
 #include <VtsHalHidlTargetTestBase.h>
 
@@ -87,7 +88,19 @@
 
     uint32_t configureChipForStaIfaceAndGetCapabilities() {
         configureChipForIfaceType(IfaceType::STA, true);
-        const auto& status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities);
+
+        sp<::android::hardware::wifi::V1_3::IWifiChip> chip_converted =
+            ::android::hardware::wifi::V1_3::IWifiChip::castFrom(wifi_chip_);
+
+        std::pair<WifiStatus, uint32_t> status_and_caps;
+
+        if (chip_converted != nullptr) {
+            // Call the newer HAL version
+            status_and_caps = HIDL_INVOKE(chip_converted, getCapabilities_1_3);
+        } else {
+            status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities);
+        }
+
         if (status_and_caps.first.code != WifiStatusCode::SUCCESS) {
             EXPECT_EQ(WifiStatusCode::ERROR_NOT_SUPPORTED, status_and_caps.first.code);
             return 0;
@@ -352,6 +365,7 @@
  * succeeds. The 2nd iface creation should be rejected.
  */
 TEST_F(WifiChipHidlTest, CreateApIface) {
+    if (!gEnv->isSoftApOn) return;
     configureChipForIfaceType(IfaceType::AP, true);
 
     sp<IWifiApIface> iface;
@@ -368,6 +382,7 @@
  * iface name is returned via the list.
  */
 TEST_F(WifiChipHidlTest, GetApIfaceNames) {
+    if (!gEnv->isSoftApOn) return;
     configureChipForIfaceType(IfaceType::AP, true);
 
     const auto& status_and_iface_names1 =
@@ -400,6 +415,7 @@
  * doesn't retrieve an iface object.
  */
 TEST_F(WifiChipHidlTest, GetApIface) {
+    if (!gEnv->isSoftApOn) return;
     configureChipForIfaceType(IfaceType::AP, true);
 
     sp<IWifiApIface> ap_iface;
@@ -426,6 +442,7 @@
  * doesn't remove the iface.
  */
 TEST_F(WifiChipHidlTest, RemoveApIface) {
+    if (!gEnv->isSoftApOn) return;
     configureChipForIfaceType(IfaceType::AP, true);
 
     sp<IWifiApIface> ap_iface;
@@ -735,10 +752,10 @@
  * CreateRttController
  */
 TEST_F(WifiChipHidlTest, CreateRttController) {
-    configureChipForIfaceType(IfaceType::AP, true);
+    configureChipForIfaceType(IfaceType::STA, true);
 
-    sp<IWifiApIface> iface;
-    EXPECT_EQ(WifiStatusCode::SUCCESS, createApIface(&iface));
+    sp<IWifiStaIface> iface;
+    EXPECT_EQ(WifiStatusCode::SUCCESS, createStaIface(&iface));
     EXPECT_NE(nullptr, iface.get());
 
     const auto& status_and_rtt_controller =
diff --git a/wifi/1.0/vts/functional/wifi_hidl_test_utils.h b/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
index 2b1c8ec..d430ce0 100644
--- a/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
+++ b/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
@@ -58,26 +58,33 @@
    public:
     // Whether NaN feature is supported on the device.
     bool isNanOn = false;
+    // Whether SoftAp feature is supported on the device.
+    bool isSoftApOn = false;
 
     void usage(char* me, char* arg) {
         fprintf(stderr,
                 "unrecognized option: %s\n\n"
                 "usage: %s <gtest options> <test options>\n\n"
                 "test options are:\n\n"
-                "-N, --nan_on: Whether NAN feature is supported\n",
+                "-N, --nan_on: Whether NAN feature is supported\n"
+                "-S, --softap_on: Whether SOFTAP feature is supported\n",
                 arg, me);
     }
 
     int initFromOptions(int argc, char** argv) {
         static struct option options[] = {{"nan_on", no_argument, 0, 'N'},
+                                          {"softap_on", no_argument, 0, 'S'},
                                           {0, 0, 0, 0}};
 
         int c;
-        while ((c = getopt_long(argc, argv, "N", options, NULL)) >= 0) {
+        while ((c = getopt_long(argc, argv, "NS", options, NULL)) >= 0) {
             switch (c) {
                 case 'N':
                     isNanOn = true;
                     break;
+                case 'S':
+                    isSoftApOn = true;
+                    break;
                 default:
                     usage(argv[0], argv[optind]);
                     return 2;
diff --git a/wifi/1.0/vts/functional/wifi_sta_iface_hidl_test.cpp b/wifi/1.0/vts/functional/wifi_sta_iface_hidl_test.cpp
index a341028..a22cd72 100644
--- a/wifi/1.0/vts/functional/wifi_sta_iface_hidl_test.cpp
+++ b/wifi/1.0/vts/functional/wifi_sta_iface_hidl_test.cpp
@@ -17,6 +17,7 @@
 #include <android-base/logging.h>
 
 #include <android/hardware/wifi/1.0/IWifiStaIface.h>
+#include <android/hardware/wifi/1.3/IWifiStaIface.h>
 
 #include <VtsHalHidlTargetTestBase.h>
 
@@ -143,6 +144,14 @@
         return;
     }
 
+    sp<::android::hardware::wifi::V1_3::IWifiStaIface> iface_converted =
+        ::android::hardware::wifi::V1_3::IWifiStaIface::castFrom(
+            wifi_sta_iface_);
+    if (iface_converted != nullptr) {
+        // Skip this test since this API is deprecated in this newer HAL version
+        return;
+    }
+
     // Enable link layer stats collection.
     EXPECT_EQ(WifiStatusCode::SUCCESS,
               HIDL_INVOKE(wifi_sta_iface_, enableLinkLayerStatsCollection, true)
diff --git a/wifi/1.2/default/OWNERS b/wifi/1.1/vts/OWNERS
similarity index 100%
copy from wifi/1.2/default/OWNERS
copy to wifi/1.1/vts/OWNERS
diff --git a/wifi/1.1/vts/functional/Android.bp b/wifi/1.1/vts/functional/Android.bp
index 78d7a85..6662314 100644
--- a/wifi/1.1/vts/functional/Android.bp
+++ b/wifi/1.1/vts/functional/Android.bp
@@ -24,6 +24,8 @@
         "VtsHalWifiV1_0TargetTestUtil",
         "android.hardware.wifi@1.0",
         "android.hardware.wifi@1.1",
+        "android.hardware.wifi@1.2",
+        "android.hardware.wifi@1.3",
     ],
     test_suites: ["general-tests"],
 }
diff --git a/wifi/1.1/vts/functional/OWNERS b/wifi/1.1/vts/functional/OWNERS
deleted file mode 100644
index 2878acc..0000000
--- a/wifi/1.1/vts/functional/OWNERS
+++ /dev/null
@@ -1,2 +0,0 @@
-rpius@google.com
-quiche@google.com
diff --git a/wifi/1.1/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.1/vts/functional/wifi_chip_hidl_test.cpp
index d3a983c..6323547 100644
--- a/wifi/1.1/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.1/vts/functional/wifi_chip_hidl_test.cpp
@@ -18,6 +18,7 @@
 
 #include <android/hardware/wifi/1.1/IWifi.h>
 #include <android/hardware/wifi/1.1/IWifiChip.h>
+#include <android/hardware/wifi/1.3/IWifiChip.h>
 
 #include <VtsHalHidlTargetTestBase.h>
 
@@ -58,7 +59,19 @@
         ChipModeId mode_id;
         EXPECT_TRUE(configureChipToSupportIfaceType(
             wifi_chip_, IfaceType::STA, &mode_id));
-        const auto& status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities);
+
+        sp<::android::hardware::wifi::V1_3::IWifiChip> chip_converted =
+            ::android::hardware::wifi::V1_3::IWifiChip::castFrom(wifi_chip_);
+
+        std::pair<WifiStatus, uint32_t> status_and_caps;
+
+        if (chip_converted != nullptr) {
+            // Call the newer HAL version
+            status_and_caps = HIDL_INVOKE(chip_converted, getCapabilities_1_3);
+        } else {
+            status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities);
+        }
+
         EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_caps.first.code);
         return status_and_caps.second;
     }
diff --git a/wifi/1.2/default/Android.mk b/wifi/1.2/default/Android.mk
deleted file mode 100644
index 3919690..0000000
--- a/wifi/1.2/default/Android.mk
+++ /dev/null
@@ -1,124 +0,0 @@
-# Copyright (C) 2016 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-LOCAL_PATH := $(call my-dir)
-
-###
-### android.hardware.wifi static library
-###
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.wifi@1.0-service-lib
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_CPPFLAGS := -Wall -Werror -Wextra
-ifdef WIFI_HIDL_FEATURE_AWARE
-LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_AWARE
-endif
-ifdef WIFI_HIDL_FEATURE_DUAL_INTERFACE
-LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_DUAL_INTERFACE
-endif
-ifdef WIFI_HIDL_FEATURE_DISABLE_AP
-LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_DISABLE_AP
-endif
-LOCAL_SRC_FILES := \
-    hidl_struct_util.cpp \
-    hidl_sync_util.cpp \
-    ringbuffer.cpp \
-    wifi.cpp \
-    wifi_ap_iface.cpp \
-    wifi_chip.cpp \
-    wifi_feature_flags.cpp \
-    wifi_legacy_hal.cpp \
-    wifi_legacy_hal_stubs.cpp \
-    wifi_mode_controller.cpp \
-    wifi_nan_iface.cpp \
-    wifi_p2p_iface.cpp \
-    wifi_rtt_controller.cpp \
-    wifi_sta_iface.cpp \
-    wifi_status_util.cpp
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libcutils \
-    libhidlbase \
-    libhidltransport \
-    liblog \
-    libnl \
-    libutils \
-    libwifi-hal \
-    libwifi-system-iface \
-    android.hardware.wifi@1.0 \
-    android.hardware.wifi@1.1 \
-    android.hardware.wifi@1.2
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
-include $(BUILD_STATIC_LIBRARY)
-
-###
-### android.hardware.wifi daemon
-###
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.wifi@1.0-service
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_CPPFLAGS := -Wall -Werror -Wextra
-LOCAL_SRC_FILES := \
-    service.cpp
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libcutils \
-    libhidlbase \
-    libhidltransport \
-    liblog \
-    libnl \
-    libutils \
-    libwifi-hal \
-    libwifi-system-iface \
-    android.hardware.wifi@1.0 \
-    android.hardware.wifi@1.1 \
-    android.hardware.wifi@1.2
-LOCAL_STATIC_LIBRARIES := \
-    android.hardware.wifi@1.0-service-lib
-LOCAL_INIT_RC := android.hardware.wifi@1.0-service.rc
-include $(BUILD_EXECUTABLE)
-
-###
-### android.hardware.wifi unit tests.
-###
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.wifi@1.0-service-tests
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_SRC_FILES := \
-    tests/hidl_struct_util_unit_tests.cpp \
-    tests/main.cpp \
-    tests/mock_wifi_feature_flags.cpp \
-    tests/mock_wifi_legacy_hal.cpp \
-    tests/mock_wifi_mode_controller.cpp \
-    tests/ringbuffer_unit_tests.cpp \
-    tests/wifi_chip_unit_tests.cpp
-LOCAL_STATIC_LIBRARIES := \
-    libgmock \
-    libgtest \
-    android.hardware.wifi@1.0-service-lib
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libcutils \
-    libhidlbase \
-    libhidltransport \
-    liblog \
-    libnl \
-    libutils \
-    libwifi-hal \
-    libwifi-system-iface \
-    android.hardware.wifi@1.0 \
-    android.hardware.wifi@1.1 \
-    android.hardware.wifi@1.2
-include $(BUILD_NATIVE_TEST)
diff --git a/wifi/1.2/default/hidl_callback_util.h b/wifi/1.2/default/hidl_callback_util.h
deleted file mode 100644
index 97f312a..0000000
--- a/wifi/1.2/default/hidl_callback_util.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef HIDL_CALLBACK_UTIL_H_
-#define HIDL_CALLBACK_UTIL_H_
-
-#include <set>
-
-#include <hidl/HidlSupport.h>
-
-namespace {
-// Type of callback invoked by the death handler.
-using on_death_cb_function = std::function<void(uint64_t)>;
-
-// Private class used to keep track of death of individual
-// callbacks stored in HidlCallbackHandler.
-template <typename CallbackType>
-class HidlDeathHandler : public android::hardware::hidl_death_recipient {
-   public:
-    HidlDeathHandler(const on_death_cb_function& user_cb_function)
-        : cb_function_(user_cb_function) {}
-    ~HidlDeathHandler() = default;
-
-    // Death notification for callbacks.
-    void serviceDied(
-        uint64_t cookie,
-        const android::wp<android::hidl::base::V1_0::IBase>& /* who */)
-        override {
-        cb_function_(cookie);
-    }
-
-   private:
-    on_death_cb_function cb_function_;
-
-    DISALLOW_COPY_AND_ASSIGN(HidlDeathHandler);
-};
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace hidl_callback_util {
-template <typename CallbackType>
-// Provides a class to manage callbacks for the various HIDL interfaces and
-// handle the death of the process hosting each callback.
-class HidlCallbackHandler {
-   public:
-    HidlCallbackHandler()
-        : death_handler_(new HidlDeathHandler<CallbackType>(
-              std::bind(&HidlCallbackHandler::onObjectDeath, this,
-                        std::placeholders::_1))) {}
-    ~HidlCallbackHandler() = default;
-
-    bool addCallback(const sp<CallbackType>& cb) {
-        // TODO(b/33818800): Can't compare proxies yet. So, use the cookie
-        // (callback proxy's raw pointer) to track the death of individual
-        // clients.
-        uint64_t cookie = reinterpret_cast<uint64_t>(cb.get());
-        if (cb_set_.find(cb) != cb_set_.end()) {
-            LOG(WARNING) << "Duplicate death notification registration";
-            return true;
-        }
-        if (!cb->linkToDeath(death_handler_, cookie)) {
-            LOG(ERROR) << "Failed to register death notification";
-            return false;
-        }
-        cb_set_.insert(cb);
-        return true;
-    }
-
-    const std::set<android::sp<CallbackType>>& getCallbacks() {
-        return cb_set_;
-    }
-
-    // Death notification for callbacks.
-    void onObjectDeath(uint64_t cookie) {
-        CallbackType* cb = reinterpret_cast<CallbackType*>(cookie);
-        const auto& iter = cb_set_.find(cb);
-        if (iter == cb_set_.end()) {
-            LOG(ERROR) << "Unknown callback death notification received";
-            return;
-        }
-        cb_set_.erase(iter);
-        LOG(DEBUG) << "Dead callback removed from list";
-    }
-
-    void invalidate() {
-        for (const sp<CallbackType>& cb : cb_set_) {
-            if (!cb->unlinkToDeath(death_handler_)) {
-                LOG(ERROR) << "Failed to deregister death notification";
-            }
-        }
-        cb_set_.clear();
-    }
-
-   private:
-    std::set<sp<CallbackType>> cb_set_;
-    sp<HidlDeathHandler<CallbackType>> death_handler_;
-
-    DISALLOW_COPY_AND_ASSIGN(HidlCallbackHandler);
-};
-
-}  // namespace hidl_callback_util
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-#endif  // HIDL_CALLBACK_UTIL_H_
diff --git a/wifi/1.2/default/hidl_return_util.h b/wifi/1.2/default/hidl_return_util.h
deleted file mode 100644
index 914c1b4..0000000
--- a/wifi/1.2/default/hidl_return_util.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef HIDL_RETURN_UTIL_H_
-#define HIDL_RETURN_UTIL_H_
-
-#include "hidl_sync_util.h"
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace hidl_return_util {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * These utility functions are used to invoke a method on the provided
- * HIDL interface object.
- * These functions checks if the provided HIDL interface object is valid.
- * a) if valid, Invokes the corresponding internal implementation function of
- * the HIDL method. It then invokes the HIDL continuation callback with
- * the status and any returned values.
- * b) if invalid, invokes the HIDL continuation callback with the
- * provided error status and default values.
- */
-// Use for HIDL methods which return only an instance of WifiStatus.
-template <typename ObjT, typename WorkFuncT, typename... Args>
-Return<void> validateAndCall(
-    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
-    const std::function<void(const WifiStatus&)>& hidl_cb, Args&&... args) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (obj->isValid()) {
-        hidl_cb((obj->*work)(std::forward<Args>(args)...));
-    } else {
-        hidl_cb(createWifiStatus(status_code_if_invalid));
-    }
-    return Void();
-}
-
-// Use for HIDL methods which return only an instance of WifiStatus.
-// This version passes the global lock acquired to the body of the method.
-// Note: Only used by IWifi::stop() currently.
-template <typename ObjT, typename WorkFuncT, typename... Args>
-Return<void> validateAndCallWithLock(
-    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
-    const std::function<void(const WifiStatus&)>& hidl_cb, Args&&... args) {
-    auto lock = hidl_sync_util::acquireGlobalLock();
-    if (obj->isValid()) {
-        hidl_cb((obj->*work)(&lock, std::forward<Args>(args)...));
-    } else {
-        hidl_cb(createWifiStatus(status_code_if_invalid));
-    }
-    return Void();
-}
-
-// Use for HIDL methods which return instance of WifiStatus and a single return
-// value.
-template <typename ObjT, typename WorkFuncT, typename ReturnT, typename... Args>
-Return<void> validateAndCall(
-    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
-    const std::function<void(const WifiStatus&, ReturnT)>& hidl_cb,
-    Args&&... args) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (obj->isValid()) {
-        const auto& ret_pair = (obj->*work)(std::forward<Args>(args)...);
-        const WifiStatus& status = std::get<0>(ret_pair);
-        const auto& ret_value = std::get<1>(ret_pair);
-        hidl_cb(status, ret_value);
-    } else {
-        hidl_cb(createWifiStatus(status_code_if_invalid),
-                typename std::remove_reference<ReturnT>::type());
-    }
-    return Void();
-}
-
-// Use for HIDL methods which return instance of WifiStatus and 2 return
-// values.
-template <typename ObjT, typename WorkFuncT, typename ReturnT1,
-          typename ReturnT2, typename... Args>
-Return<void> validateAndCall(
-    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
-    const std::function<void(const WifiStatus&, ReturnT1, ReturnT2)>& hidl_cb,
-    Args&&... args) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (obj->isValid()) {
-        const auto& ret_tuple = (obj->*work)(std::forward<Args>(args)...);
-        const WifiStatus& status = std::get<0>(ret_tuple);
-        const auto& ret_value1 = std::get<1>(ret_tuple);
-        const auto& ret_value2 = std::get<2>(ret_tuple);
-        hidl_cb(status, ret_value1, ret_value2);
-    } else {
-        hidl_cb(createWifiStatus(status_code_if_invalid),
-                typename std::remove_reference<ReturnT1>::type(),
-                typename std::remove_reference<ReturnT2>::type());
-    }
-    return Void();
-}
-
-}  // namespace hidl_return_util
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-#endif  // HIDL_RETURN_UTIL_H_
diff --git a/wifi/1.2/default/hidl_struct_util.cpp b/wifi/1.2/default/hidl_struct_util.cpp
deleted file mode 100644
index 39ac544..0000000
--- a/wifi/1.2/default/hidl_struct_util.cpp
+++ /dev/null
@@ -1,2622 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <utils/SystemClock.h>
-
-#include "hidl_struct_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace hidl_struct_util {
-
-WifiChannelWidthInMhz convertLegacyWifiChannelWidthToHidl(
-    legacy_hal::wifi_channel_width type);
-
-hidl_string safeConvertChar(const char* str, size_t max_len) {
-    const char* c = str;
-    size_t size = 0;
-    while (*c && (unsigned char)*c < 128 && size < max_len) {
-        ++size;
-        ++c;
-    }
-    return hidl_string(str, size);
-}
-
-IWifiChip::ChipCapabilityMask convertLegacyLoggerFeatureToHidlChipCapability(
-    uint32_t feature) {
-    using HidlChipCaps = IWifiChip::ChipCapabilityMask;
-    switch (feature) {
-        case legacy_hal::WIFI_LOGGER_MEMORY_DUMP_SUPPORTED:
-            return HidlChipCaps::DEBUG_MEMORY_FIRMWARE_DUMP;
-        case legacy_hal::WIFI_LOGGER_DRIVER_DUMP_SUPPORTED:
-            return HidlChipCaps::DEBUG_MEMORY_DRIVER_DUMP;
-        case legacy_hal::WIFI_LOGGER_CONNECT_EVENT_SUPPORTED:
-            return HidlChipCaps::DEBUG_RING_BUFFER_CONNECT_EVENT;
-        case legacy_hal::WIFI_LOGGER_POWER_EVENT_SUPPORTED:
-            return HidlChipCaps::DEBUG_RING_BUFFER_POWER_EVENT;
-        case legacy_hal::WIFI_LOGGER_WAKE_LOCK_SUPPORTED:
-            return HidlChipCaps::DEBUG_RING_BUFFER_WAKELOCK_EVENT;
-    };
-    CHECK(false) << "Unknown legacy feature: " << feature;
-    return {};
-}
-
-IWifiStaIface::StaIfaceCapabilityMask
-convertLegacyLoggerFeatureToHidlStaIfaceCapability(uint32_t feature) {
-    using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
-    switch (feature) {
-        case legacy_hal::WIFI_LOGGER_PACKET_FATE_SUPPORTED:
-            return HidlStaIfaceCaps::DEBUG_PACKET_FATE;
-    };
-    CHECK(false) << "Unknown legacy feature: " << feature;
-    return {};
-}
-
-IWifiChip::ChipCapabilityMask convertLegacyFeatureToHidlChipCapability(
-    uint32_t feature) {
-    using HidlChipCaps = IWifiChip::ChipCapabilityMask;
-    switch (feature) {
-        case WIFI_FEATURE_SET_TX_POWER_LIMIT:
-            return HidlChipCaps::SET_TX_POWER_LIMIT;
-        case WIFI_FEATURE_USE_BODY_HEAD_SAR:
-            return HidlChipCaps::USE_BODY_HEAD_SAR;
-        case WIFI_FEATURE_D2D_RTT:
-            return HidlChipCaps::D2D_RTT;
-        case WIFI_FEATURE_D2AP_RTT:
-            return HidlChipCaps::D2AP_RTT;
-    };
-    CHECK(false) << "Unknown legacy feature: " << feature;
-    return {};
-}
-
-IWifiStaIface::StaIfaceCapabilityMask
-convertLegacyFeatureToHidlStaIfaceCapability(uint32_t feature) {
-    using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
-    switch (feature) {
-        case WIFI_FEATURE_GSCAN:
-            return HidlStaIfaceCaps::BACKGROUND_SCAN;
-        case WIFI_FEATURE_LINK_LAYER_STATS:
-            return HidlStaIfaceCaps::LINK_LAYER_STATS;
-        case WIFI_FEATURE_RSSI_MONITOR:
-            return HidlStaIfaceCaps::RSSI_MONITOR;
-        case WIFI_FEATURE_CONTROL_ROAMING:
-            return HidlStaIfaceCaps::CONTROL_ROAMING;
-        case WIFI_FEATURE_IE_WHITELIST:
-            return HidlStaIfaceCaps::PROBE_IE_WHITELIST;
-        case WIFI_FEATURE_SCAN_RAND:
-            return HidlStaIfaceCaps::SCAN_RAND;
-        case WIFI_FEATURE_INFRA_5G:
-            return HidlStaIfaceCaps::STA_5G;
-        case WIFI_FEATURE_HOTSPOT:
-            return HidlStaIfaceCaps::HOTSPOT;
-        case WIFI_FEATURE_PNO:
-            return HidlStaIfaceCaps::PNO;
-        case WIFI_FEATURE_TDLS:
-            return HidlStaIfaceCaps::TDLS;
-        case WIFI_FEATURE_TDLS_OFFCHANNEL:
-            return HidlStaIfaceCaps::TDLS_OFFCHANNEL;
-        case WIFI_FEATURE_CONFIG_NDO:
-            return HidlStaIfaceCaps::ND_OFFLOAD;
-        case WIFI_FEATURE_MKEEP_ALIVE:
-            return HidlStaIfaceCaps::KEEP_ALIVE;
-    };
-    CHECK(false) << "Unknown legacy feature: " << feature;
-    return {};
-}
-
-bool convertLegacyFeaturesToHidlChipCapabilities(
-    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
-    uint32_t* hidl_caps) {
-    if (!hidl_caps) {
-        return false;
-    }
-    *hidl_caps = {};
-    using HidlChipCaps = IWifiChip::ChipCapabilityMask;
-    for (const auto feature : {legacy_hal::WIFI_LOGGER_MEMORY_DUMP_SUPPORTED,
-                               legacy_hal::WIFI_LOGGER_DRIVER_DUMP_SUPPORTED,
-                               legacy_hal::WIFI_LOGGER_CONNECT_EVENT_SUPPORTED,
-                               legacy_hal::WIFI_LOGGER_POWER_EVENT_SUPPORTED,
-                               legacy_hal::WIFI_LOGGER_WAKE_LOCK_SUPPORTED}) {
-        if (feature & legacy_logger_feature_set) {
-            *hidl_caps |=
-                convertLegacyLoggerFeatureToHidlChipCapability(feature);
-        }
-    }
-    for (const auto feature : {WIFI_FEATURE_SET_TX_POWER_LIMIT,
-                               WIFI_FEATURE_USE_BODY_HEAD_SAR,
-                               WIFI_FEATURE_D2D_RTT, WIFI_FEATURE_D2AP_RTT}) {
-        if (feature & legacy_feature_set) {
-            *hidl_caps |= convertLegacyFeatureToHidlChipCapability(feature);
-        }
-    }
-    // There are no flags for these 3 in the legacy feature set. Adding them to
-    // the set because all the current devices support it.
-    *hidl_caps |= HidlChipCaps::DEBUG_RING_BUFFER_VENDOR_DATA;
-    *hidl_caps |= HidlChipCaps::DEBUG_HOST_WAKE_REASON_STATS;
-    *hidl_caps |= HidlChipCaps::DEBUG_ERROR_ALERTS;
-    return true;
-}
-
-WifiDebugRingBufferFlags convertLegacyDebugRingBufferFlagsToHidl(
-    uint32_t flag) {
-    switch (flag) {
-        case WIFI_RING_BUFFER_FLAG_HAS_BINARY_ENTRIES:
-            return WifiDebugRingBufferFlags::HAS_BINARY_ENTRIES;
-        case WIFI_RING_BUFFER_FLAG_HAS_ASCII_ENTRIES:
-            return WifiDebugRingBufferFlags::HAS_ASCII_ENTRIES;
-    };
-    CHECK(false) << "Unknown legacy flag: " << flag;
-    return {};
-}
-
-bool convertLegacyDebugRingBufferStatusToHidl(
-    const legacy_hal::wifi_ring_buffer_status& legacy_status,
-    WifiDebugRingBufferStatus* hidl_status) {
-    if (!hidl_status) {
-        return false;
-    }
-    *hidl_status = {};
-    hidl_status->ringName =
-        safeConvertChar(reinterpret_cast<const char*>(legacy_status.name),
-                        sizeof(legacy_status.name));
-    hidl_status->flags = 0;
-    for (const auto flag : {WIFI_RING_BUFFER_FLAG_HAS_BINARY_ENTRIES,
-                            WIFI_RING_BUFFER_FLAG_HAS_ASCII_ENTRIES}) {
-        if (flag & legacy_status.flags) {
-            hidl_status->flags |= static_cast<
-                std::underlying_type<WifiDebugRingBufferFlags>::type>(
-                convertLegacyDebugRingBufferFlagsToHidl(flag));
-        }
-    }
-    hidl_status->ringId = legacy_status.ring_id;
-    hidl_status->sizeInBytes = legacy_status.ring_buffer_byte_size;
-    // Calculate free size of the ring the buffer. We don't need to send the
-    // exact read/write pointers that were there in the legacy HAL interface.
-    if (legacy_status.written_bytes >= legacy_status.read_bytes) {
-        hidl_status->freeSizeInBytes =
-            legacy_status.ring_buffer_byte_size -
-            (legacy_status.written_bytes - legacy_status.read_bytes);
-    } else {
-        hidl_status->freeSizeInBytes =
-            legacy_status.read_bytes - legacy_status.written_bytes;
-    }
-    hidl_status->verboseLevel = legacy_status.verbose_level;
-    return true;
-}
-
-bool convertLegacyVectorOfDebugRingBufferStatusToHidl(
-    const std::vector<legacy_hal::wifi_ring_buffer_status>& legacy_status_vec,
-    std::vector<WifiDebugRingBufferStatus>* hidl_status_vec) {
-    if (!hidl_status_vec) {
-        return false;
-    }
-    *hidl_status_vec = {};
-    for (const auto& legacy_status : legacy_status_vec) {
-        WifiDebugRingBufferStatus hidl_status;
-        if (!convertLegacyDebugRingBufferStatusToHidl(legacy_status,
-                                                      &hidl_status)) {
-            return false;
-        }
-        hidl_status_vec->push_back(hidl_status);
-    }
-    return true;
-}
-
-bool convertLegacyWakeReasonStatsToHidl(
-    const legacy_hal::WakeReasonStats& legacy_stats,
-    WifiDebugHostWakeReasonStats* hidl_stats) {
-    if (!hidl_stats) {
-        return false;
-    }
-    *hidl_stats = {};
-    hidl_stats->totalCmdEventWakeCnt =
-        legacy_stats.wake_reason_cnt.total_cmd_event_wake;
-    hidl_stats->cmdEventWakeCntPerType = legacy_stats.cmd_event_wake_cnt;
-    hidl_stats->totalDriverFwLocalWakeCnt =
-        legacy_stats.wake_reason_cnt.total_driver_fw_local_wake;
-    hidl_stats->driverFwLocalWakeCntPerType =
-        legacy_stats.driver_fw_local_wake_cnt;
-    hidl_stats->totalRxPacketWakeCnt =
-        legacy_stats.wake_reason_cnt.total_rx_data_wake;
-    hidl_stats->rxPktWakeDetails.rxUnicastCnt =
-        legacy_stats.wake_reason_cnt.rx_wake_details.rx_unicast_cnt;
-    hidl_stats->rxPktWakeDetails.rxMulticastCnt =
-        legacy_stats.wake_reason_cnt.rx_wake_details.rx_multicast_cnt;
-    hidl_stats->rxPktWakeDetails.rxBroadcastCnt =
-        legacy_stats.wake_reason_cnt.rx_wake_details.rx_broadcast_cnt;
-    hidl_stats->rxMulticastPkWakeDetails.ipv4RxMulticastAddrCnt =
-        legacy_stats.wake_reason_cnt.rx_multicast_wake_pkt_info
-            .ipv4_rx_multicast_addr_cnt;
-    hidl_stats->rxMulticastPkWakeDetails.ipv6RxMulticastAddrCnt =
-        legacy_stats.wake_reason_cnt.rx_multicast_wake_pkt_info
-            .ipv6_rx_multicast_addr_cnt;
-    hidl_stats->rxMulticastPkWakeDetails.otherRxMulticastAddrCnt =
-        legacy_stats.wake_reason_cnt.rx_multicast_wake_pkt_info
-            .other_rx_multicast_addr_cnt;
-    hidl_stats->rxIcmpPkWakeDetails.icmpPkt =
-        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp_pkt;
-    hidl_stats->rxIcmpPkWakeDetails.icmp6Pkt =
-        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_pkt;
-    hidl_stats->rxIcmpPkWakeDetails.icmp6Ra =
-        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_ra;
-    hidl_stats->rxIcmpPkWakeDetails.icmp6Na =
-        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_na;
-    hidl_stats->rxIcmpPkWakeDetails.icmp6Ns =
-        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_ns;
-    return true;
-}
-
-legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy(
-    V1_1::IWifiChip::TxPowerScenario hidl_scenario) {
-    switch (hidl_scenario) {
-        // This is the only supported scenario for V1_1
-      case V1_1::IWifiChip::TxPowerScenario::VOICE_CALL:
-            return legacy_hal::WIFI_POWER_SCENARIO_VOICE_CALL;
-    };
-    CHECK(false);
-}
-
-legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy_1_2(
-    IWifiChip::TxPowerScenario hidl_scenario) {
-    switch (hidl_scenario) {
-        // This is the only supported scenario for V1_1
-        case IWifiChip::TxPowerScenario::VOICE_CALL:
-            return legacy_hal::WIFI_POWER_SCENARIO_VOICE_CALL;
-        // Those are the supported scenarios for V1_2
-        case IWifiChip::TxPowerScenario::ON_HEAD_CELL_OFF:
-            return legacy_hal::WIFI_POWER_SCENARIO_ON_HEAD_CELL_OFF;
-        case IWifiChip::TxPowerScenario::ON_HEAD_CELL_ON:
-            return legacy_hal::WIFI_POWER_SCENARIO_ON_HEAD_CELL_ON;
-        case IWifiChip::TxPowerScenario::ON_BODY_CELL_OFF:
-            return legacy_hal::WIFI_POWER_SCENARIO_ON_BODY_CELL_OFF;
-        case IWifiChip::TxPowerScenario::ON_BODY_CELL_ON:
-            return legacy_hal::WIFI_POWER_SCENARIO_ON_BODY_CELL_ON;
-    };
-    CHECK(false);
-}
-
-bool convertLegacyWifiMacInfoToHidl(
-    const legacy_hal::WifiMacInfo& legacy_mac_info,
-    IWifiChipEventCallback::RadioModeInfo* hidl_radio_mode_info) {
-    if (!hidl_radio_mode_info) {
-        return false;
-    }
-    *hidl_radio_mode_info = {};
-
-    hidl_radio_mode_info->radioId = legacy_mac_info.wlan_mac_id;
-    // Convert from bitmask of bands in the legacy HAL to enum value in
-    // the HIDL interface.
-    if (legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_2_4_BAND &&
-        legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_5_0_BAND) {
-        hidl_radio_mode_info->bandInfo = WifiBand::BAND_24GHZ_5GHZ;
-    } else if (legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_2_4_BAND) {
-        hidl_radio_mode_info->bandInfo = WifiBand::BAND_24GHZ;
-    } else if (legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_5_0_BAND) {
-        hidl_radio_mode_info->bandInfo = WifiBand::BAND_5GHZ;
-    } else {
-        hidl_radio_mode_info->bandInfo = WifiBand::BAND_UNSPECIFIED;
-    }
-    std::vector<IWifiChipEventCallback::IfaceInfo> iface_info_vec;
-    for (const auto& legacy_iface_info : legacy_mac_info.iface_infos) {
-        IWifiChipEventCallback::IfaceInfo iface_info;
-        iface_info.name = legacy_iface_info.name;
-        iface_info.channel = legacy_iface_info.channel;
-        iface_info_vec.push_back(iface_info);
-    }
-    hidl_radio_mode_info->ifaceInfos = iface_info_vec;
-    return true;
-}
-
-bool convertLegacyWifiMacInfosToHidl(
-    const std::vector<legacy_hal::WifiMacInfo>& legacy_mac_infos,
-    std::vector<IWifiChipEventCallback::RadioModeInfo>* hidl_radio_mode_infos) {
-    if (!hidl_radio_mode_infos) {
-        return false;
-    }
-    *hidl_radio_mode_infos = {};
-
-    for (const auto& legacy_mac_info : legacy_mac_infos) {
-        IWifiChipEventCallback::RadioModeInfo hidl_radio_mode_info;
-        if (!convertLegacyWifiMacInfoToHidl(legacy_mac_info,
-                                            &hidl_radio_mode_info)) {
-            return false;
-        }
-        hidl_radio_mode_infos->push_back(hidl_radio_mode_info);
-    }
-    return true;
-}
-
-bool convertLegacyFeaturesToHidlStaCapabilities(
-    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
-    uint32_t* hidl_caps) {
-    if (!hidl_caps) {
-        return false;
-    }
-    *hidl_caps = {};
-    using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
-    for (const auto feature : {legacy_hal::WIFI_LOGGER_PACKET_FATE_SUPPORTED}) {
-        if (feature & legacy_logger_feature_set) {
-            *hidl_caps |=
-                convertLegacyLoggerFeatureToHidlStaIfaceCapability(feature);
-        }
-    }
-    for (const auto feature :
-         {WIFI_FEATURE_GSCAN, WIFI_FEATURE_LINK_LAYER_STATS,
-          WIFI_FEATURE_RSSI_MONITOR, WIFI_FEATURE_CONTROL_ROAMING,
-          WIFI_FEATURE_IE_WHITELIST, WIFI_FEATURE_SCAN_RAND,
-          WIFI_FEATURE_INFRA_5G, WIFI_FEATURE_HOTSPOT, WIFI_FEATURE_PNO,
-          WIFI_FEATURE_TDLS, WIFI_FEATURE_TDLS_OFFCHANNEL,
-          WIFI_FEATURE_CONFIG_NDO, WIFI_FEATURE_MKEEP_ALIVE}) {
-        if (feature & legacy_feature_set) {
-            *hidl_caps |= convertLegacyFeatureToHidlStaIfaceCapability(feature);
-        }
-    }
-    // There is no flag for this one in the legacy feature set. Adding it to the
-    // set because all the current devices support it.
-    *hidl_caps |= HidlStaIfaceCaps::APF;
-    return true;
-}
-
-bool convertLegacyApfCapabilitiesToHidl(
-    const legacy_hal::PacketFilterCapabilities& legacy_caps,
-    StaApfPacketFilterCapabilities* hidl_caps) {
-    if (!hidl_caps) {
-        return false;
-    }
-    *hidl_caps = {};
-    hidl_caps->version = legacy_caps.version;
-    hidl_caps->maxLength = legacy_caps.max_len;
-    return true;
-}
-
-uint8_t convertHidlGscanReportEventFlagToLegacy(
-    StaBackgroundScanBucketEventReportSchemeMask hidl_flag) {
-    using HidlFlag = StaBackgroundScanBucketEventReportSchemeMask;
-    switch (hidl_flag) {
-        case HidlFlag::EACH_SCAN:
-            return REPORT_EVENTS_EACH_SCAN;
-        case HidlFlag::FULL_RESULTS:
-            return REPORT_EVENTS_FULL_RESULTS;
-        case HidlFlag::NO_BATCH:
-            return REPORT_EVENTS_NO_BATCH;
-    };
-    CHECK(false);
-}
-
-StaScanDataFlagMask convertLegacyGscanDataFlagToHidl(uint8_t legacy_flag) {
-    switch (legacy_flag) {
-        case legacy_hal::WIFI_SCAN_FLAG_INTERRUPTED:
-            return StaScanDataFlagMask::INTERRUPTED;
-    };
-    CHECK(false) << "Unknown legacy flag: " << legacy_flag;
-    // To silence the compiler warning about reaching the end of non-void
-    // function.
-    return {};
-}
-
-bool convertLegacyGscanCapabilitiesToHidl(
-    const legacy_hal::wifi_gscan_capabilities& legacy_caps,
-    StaBackgroundScanCapabilities* hidl_caps) {
-    if (!hidl_caps) {
-        return false;
-    }
-    *hidl_caps = {};
-    hidl_caps->maxCacheSize = legacy_caps.max_scan_cache_size;
-    hidl_caps->maxBuckets = legacy_caps.max_scan_buckets;
-    hidl_caps->maxApCachePerScan = legacy_caps.max_ap_cache_per_scan;
-    hidl_caps->maxReportingThreshold = legacy_caps.max_scan_reporting_threshold;
-    return true;
-}
-
-legacy_hal::wifi_band convertHidlWifiBandToLegacy(WifiBand band) {
-    switch (band) {
-        case WifiBand::BAND_UNSPECIFIED:
-            return legacy_hal::WIFI_BAND_UNSPECIFIED;
-        case WifiBand::BAND_24GHZ:
-            return legacy_hal::WIFI_BAND_BG;
-        case WifiBand::BAND_5GHZ:
-            return legacy_hal::WIFI_BAND_A;
-        case WifiBand::BAND_5GHZ_DFS:
-            return legacy_hal::WIFI_BAND_A_DFS;
-        case WifiBand::BAND_5GHZ_WITH_DFS:
-            return legacy_hal::WIFI_BAND_A_WITH_DFS;
-        case WifiBand::BAND_24GHZ_5GHZ:
-            return legacy_hal::WIFI_BAND_ABG;
-        case WifiBand::BAND_24GHZ_5GHZ_WITH_DFS:
-            return legacy_hal::WIFI_BAND_ABG_WITH_DFS;
-    };
-    CHECK(false);
-}
-
-bool convertHidlGscanParamsToLegacy(
-    const StaBackgroundScanParameters& hidl_scan_params,
-    legacy_hal::wifi_scan_cmd_params* legacy_scan_params) {
-    if (!legacy_scan_params) {
-        return false;
-    }
-    *legacy_scan_params = {};
-    legacy_scan_params->base_period = hidl_scan_params.basePeriodInMs;
-    legacy_scan_params->max_ap_per_scan = hidl_scan_params.maxApPerScan;
-    legacy_scan_params->report_threshold_percent =
-        hidl_scan_params.reportThresholdPercent;
-    legacy_scan_params->report_threshold_num_scans =
-        hidl_scan_params.reportThresholdNumScans;
-    if (hidl_scan_params.buckets.size() > MAX_BUCKETS) {
-        return false;
-    }
-    legacy_scan_params->num_buckets = hidl_scan_params.buckets.size();
-    for (uint32_t bucket_idx = 0; bucket_idx < hidl_scan_params.buckets.size();
-         bucket_idx++) {
-        const StaBackgroundScanBucketParameters& hidl_bucket_spec =
-            hidl_scan_params.buckets[bucket_idx];
-        legacy_hal::wifi_scan_bucket_spec& legacy_bucket_spec =
-            legacy_scan_params->buckets[bucket_idx];
-        if (hidl_bucket_spec.bucketIdx >= MAX_BUCKETS) {
-            return false;
-        }
-        legacy_bucket_spec.bucket = hidl_bucket_spec.bucketIdx;
-        legacy_bucket_spec.band =
-            convertHidlWifiBandToLegacy(hidl_bucket_spec.band);
-        legacy_bucket_spec.period = hidl_bucket_spec.periodInMs;
-        legacy_bucket_spec.max_period =
-            hidl_bucket_spec.exponentialMaxPeriodInMs;
-        legacy_bucket_spec.base = hidl_bucket_spec.exponentialBase;
-        legacy_bucket_spec.step_count = hidl_bucket_spec.exponentialStepCount;
-        legacy_bucket_spec.report_events = 0;
-        using HidlFlag = StaBackgroundScanBucketEventReportSchemeMask;
-        for (const auto flag : {HidlFlag::EACH_SCAN, HidlFlag::FULL_RESULTS,
-                                HidlFlag::NO_BATCH}) {
-            if (hidl_bucket_spec.eventReportScheme &
-                static_cast<std::underlying_type<HidlFlag>::type>(flag)) {
-                legacy_bucket_spec.report_events |=
-                    convertHidlGscanReportEventFlagToLegacy(flag);
-            }
-        }
-        if (hidl_bucket_spec.frequencies.size() > MAX_CHANNELS) {
-            return false;
-        }
-        legacy_bucket_spec.num_channels = hidl_bucket_spec.frequencies.size();
-        for (uint32_t freq_idx = 0;
-             freq_idx < hidl_bucket_spec.frequencies.size(); freq_idx++) {
-            legacy_bucket_spec.channels[freq_idx].channel =
-                hidl_bucket_spec.frequencies[freq_idx];
-        }
-    }
-    return true;
-}
-
-bool convertLegacyIeToHidl(
-    const legacy_hal::wifi_information_element& legacy_ie,
-    WifiInformationElement* hidl_ie) {
-    if (!hidl_ie) {
-        return false;
-    }
-    *hidl_ie = {};
-    hidl_ie->id = legacy_ie.id;
-    hidl_ie->data =
-        std::vector<uint8_t>(legacy_ie.data, legacy_ie.data + legacy_ie.len);
-    return true;
-}
-
-bool convertLegacyIeBlobToHidl(const uint8_t* ie_blob, uint32_t ie_blob_len,
-                               std::vector<WifiInformationElement>* hidl_ies) {
-    if (!ie_blob || !hidl_ies) {
-        return false;
-    }
-    *hidl_ies = {};
-    const uint8_t* ies_begin = ie_blob;
-    const uint8_t* ies_end = ie_blob + ie_blob_len;
-    const uint8_t* next_ie = ies_begin;
-    using wifi_ie = legacy_hal::wifi_information_element;
-    constexpr size_t kIeHeaderLen = sizeof(wifi_ie);
-    // Each IE should atleast have the header (i.e |id| & |len| fields).
-    while (next_ie + kIeHeaderLen <= ies_end) {
-        const wifi_ie& legacy_ie = (*reinterpret_cast<const wifi_ie*>(next_ie));
-        uint32_t curr_ie_len = kIeHeaderLen + legacy_ie.len;
-        if (next_ie + curr_ie_len > ies_end) {
-            LOG(ERROR) << "Error parsing IE blob. Next IE: " << (void*)next_ie
-                       << ", Curr IE len: " << curr_ie_len
-                       << ", IEs End: " << (void*)ies_end;
-            break;
-        }
-        WifiInformationElement hidl_ie;
-        if (!convertLegacyIeToHidl(legacy_ie, &hidl_ie)) {
-            LOG(ERROR) << "Error converting IE. Id: " << legacy_ie.id
-                       << ", len: " << legacy_ie.len;
-            break;
-        }
-        hidl_ies->push_back(std::move(hidl_ie));
-        next_ie += curr_ie_len;
-    }
-    // Check if the blob has been fully consumed.
-    if (next_ie != ies_end) {
-        LOG(ERROR) << "Failed to fully parse IE blob. Next IE: "
-                   << (void*)next_ie << ", IEs End: " << (void*)ies_end;
-    }
-    return true;
-}
-
-bool convertLegacyGscanResultToHidl(
-    const legacy_hal::wifi_scan_result& legacy_scan_result, bool has_ie_data,
-    StaScanResult* hidl_scan_result) {
-    if (!hidl_scan_result) {
-        return false;
-    }
-    *hidl_scan_result = {};
-    hidl_scan_result->timeStampInUs = legacy_scan_result.ts;
-    hidl_scan_result->ssid = std::vector<uint8_t>(
-        legacy_scan_result.ssid,
-        legacy_scan_result.ssid + strnlen(legacy_scan_result.ssid,
-                                          sizeof(legacy_scan_result.ssid) - 1));
-    memcpy(hidl_scan_result->bssid.data(), legacy_scan_result.bssid,
-           hidl_scan_result->bssid.size());
-    hidl_scan_result->frequency = legacy_scan_result.channel;
-    hidl_scan_result->rssi = legacy_scan_result.rssi;
-    hidl_scan_result->beaconPeriodInMs = legacy_scan_result.beacon_period;
-    hidl_scan_result->capability = legacy_scan_result.capability;
-    if (has_ie_data) {
-        std::vector<WifiInformationElement> ies;
-        if (!convertLegacyIeBlobToHidl(
-                reinterpret_cast<const uint8_t*>(legacy_scan_result.ie_data),
-                legacy_scan_result.ie_length, &ies)) {
-            return false;
-        }
-        hidl_scan_result->informationElements = std::move(ies);
-    }
-    return true;
-}
-
-bool convertLegacyCachedGscanResultsToHidl(
-    const legacy_hal::wifi_cached_scan_results& legacy_cached_scan_result,
-    StaScanData* hidl_scan_data) {
-    if (!hidl_scan_data) {
-        return false;
-    }
-    *hidl_scan_data = {};
-    hidl_scan_data->flags = 0;
-    for (const auto flag : {legacy_hal::WIFI_SCAN_FLAG_INTERRUPTED}) {
-        if (legacy_cached_scan_result.flags & flag) {
-            hidl_scan_data->flags |=
-                static_cast<std::underlying_type<StaScanDataFlagMask>::type>(
-                    convertLegacyGscanDataFlagToHidl(flag));
-        }
-    }
-    hidl_scan_data->bucketsScanned = legacy_cached_scan_result.buckets_scanned;
-
-    CHECK(legacy_cached_scan_result.num_results >= 0 &&
-          legacy_cached_scan_result.num_results <= MAX_AP_CACHE_PER_SCAN);
-    std::vector<StaScanResult> hidl_scan_results;
-    for (int32_t result_idx = 0;
-         result_idx < legacy_cached_scan_result.num_results; result_idx++) {
-        StaScanResult hidl_scan_result;
-        if (!convertLegacyGscanResultToHidl(
-                legacy_cached_scan_result.results[result_idx], false,
-                &hidl_scan_result)) {
-            return false;
-        }
-        hidl_scan_results.push_back(hidl_scan_result);
-    }
-    hidl_scan_data->results = std::move(hidl_scan_results);
-    return true;
-}
-
-bool convertLegacyVectorOfCachedGscanResultsToHidl(
-    const std::vector<legacy_hal::wifi_cached_scan_results>&
-        legacy_cached_scan_results,
-    std::vector<StaScanData>* hidl_scan_datas) {
-    if (!hidl_scan_datas) {
-        return false;
-    }
-    *hidl_scan_datas = {};
-    for (const auto& legacy_cached_scan_result : legacy_cached_scan_results) {
-        StaScanData hidl_scan_data;
-        if (!convertLegacyCachedGscanResultsToHidl(legacy_cached_scan_result,
-                                                   &hidl_scan_data)) {
-            return false;
-        }
-        hidl_scan_datas->push_back(hidl_scan_data);
-    }
-    return true;
-}
-
-WifiDebugTxPacketFate convertLegacyDebugTxPacketFateToHidl(
-    legacy_hal::wifi_tx_packet_fate fate) {
-    switch (fate) {
-        case legacy_hal::TX_PKT_FATE_ACKED:
-            return WifiDebugTxPacketFate::ACKED;
-        case legacy_hal::TX_PKT_FATE_SENT:
-            return WifiDebugTxPacketFate::SENT;
-        case legacy_hal::TX_PKT_FATE_FW_QUEUED:
-            return WifiDebugTxPacketFate::FW_QUEUED;
-        case legacy_hal::TX_PKT_FATE_FW_DROP_INVALID:
-            return WifiDebugTxPacketFate::FW_DROP_INVALID;
-        case legacy_hal::TX_PKT_FATE_FW_DROP_NOBUFS:
-            return WifiDebugTxPacketFate::FW_DROP_NOBUFS;
-        case legacy_hal::TX_PKT_FATE_FW_DROP_OTHER:
-            return WifiDebugTxPacketFate::FW_DROP_OTHER;
-        case legacy_hal::TX_PKT_FATE_DRV_QUEUED:
-            return WifiDebugTxPacketFate::DRV_QUEUED;
-        case legacy_hal::TX_PKT_FATE_DRV_DROP_INVALID:
-            return WifiDebugTxPacketFate::DRV_DROP_INVALID;
-        case legacy_hal::TX_PKT_FATE_DRV_DROP_NOBUFS:
-            return WifiDebugTxPacketFate::DRV_DROP_NOBUFS;
-        case legacy_hal::TX_PKT_FATE_DRV_DROP_OTHER:
-            return WifiDebugTxPacketFate::DRV_DROP_OTHER;
-    };
-    CHECK(false) << "Unknown legacy fate type: " << fate;
-}
-
-WifiDebugRxPacketFate convertLegacyDebugRxPacketFateToHidl(
-    legacy_hal::wifi_rx_packet_fate fate) {
-    switch (fate) {
-        case legacy_hal::RX_PKT_FATE_SUCCESS:
-            return WifiDebugRxPacketFate::SUCCESS;
-        case legacy_hal::RX_PKT_FATE_FW_QUEUED:
-            return WifiDebugRxPacketFate::FW_QUEUED;
-        case legacy_hal::RX_PKT_FATE_FW_DROP_FILTER:
-            return WifiDebugRxPacketFate::FW_DROP_FILTER;
-        case legacy_hal::RX_PKT_FATE_FW_DROP_INVALID:
-            return WifiDebugRxPacketFate::FW_DROP_INVALID;
-        case legacy_hal::RX_PKT_FATE_FW_DROP_NOBUFS:
-            return WifiDebugRxPacketFate::FW_DROP_NOBUFS;
-        case legacy_hal::RX_PKT_FATE_FW_DROP_OTHER:
-            return WifiDebugRxPacketFate::FW_DROP_OTHER;
-        case legacy_hal::RX_PKT_FATE_DRV_QUEUED:
-            return WifiDebugRxPacketFate::DRV_QUEUED;
-        case legacy_hal::RX_PKT_FATE_DRV_DROP_FILTER:
-            return WifiDebugRxPacketFate::DRV_DROP_FILTER;
-        case legacy_hal::RX_PKT_FATE_DRV_DROP_INVALID:
-            return WifiDebugRxPacketFate::DRV_DROP_INVALID;
-        case legacy_hal::RX_PKT_FATE_DRV_DROP_NOBUFS:
-            return WifiDebugRxPacketFate::DRV_DROP_NOBUFS;
-        case legacy_hal::RX_PKT_FATE_DRV_DROP_OTHER:
-            return WifiDebugRxPacketFate::DRV_DROP_OTHER;
-    };
-    CHECK(false) << "Unknown legacy fate type: " << fate;
-}
-
-WifiDebugPacketFateFrameType convertLegacyDebugPacketFateFrameTypeToHidl(
-    legacy_hal::frame_type type) {
-    switch (type) {
-        case legacy_hal::FRAME_TYPE_UNKNOWN:
-            return WifiDebugPacketFateFrameType::UNKNOWN;
-        case legacy_hal::FRAME_TYPE_ETHERNET_II:
-            return WifiDebugPacketFateFrameType::ETHERNET_II;
-        case legacy_hal::FRAME_TYPE_80211_MGMT:
-            return WifiDebugPacketFateFrameType::MGMT_80211;
-    };
-    CHECK(false) << "Unknown legacy frame type: " << type;
-}
-
-bool convertLegacyDebugPacketFateFrameToHidl(
-    const legacy_hal::frame_info& legacy_frame,
-    WifiDebugPacketFateFrameInfo* hidl_frame) {
-    if (!hidl_frame) {
-        return false;
-    }
-    *hidl_frame = {};
-    hidl_frame->frameType =
-        convertLegacyDebugPacketFateFrameTypeToHidl(legacy_frame.payload_type);
-    hidl_frame->frameLen = legacy_frame.frame_len;
-    hidl_frame->driverTimestampUsec = legacy_frame.driver_timestamp_usec;
-    hidl_frame->firmwareTimestampUsec = legacy_frame.firmware_timestamp_usec;
-    const uint8_t* frame_begin = reinterpret_cast<const uint8_t*>(
-        legacy_frame.frame_content.ethernet_ii_bytes);
-    hidl_frame->frameContent =
-        std::vector<uint8_t>(frame_begin, frame_begin + legacy_frame.frame_len);
-    return true;
-}
-
-bool convertLegacyDebugTxPacketFateToHidl(
-    const legacy_hal::wifi_tx_report& legacy_fate,
-    WifiDebugTxPacketFateReport* hidl_fate) {
-    if (!hidl_fate) {
-        return false;
-    }
-    *hidl_fate = {};
-    hidl_fate->fate = convertLegacyDebugTxPacketFateToHidl(legacy_fate.fate);
-    return convertLegacyDebugPacketFateFrameToHidl(legacy_fate.frame_inf,
-                                                   &hidl_fate->frameInfo);
-}
-
-bool convertLegacyVectorOfDebugTxPacketFateToHidl(
-    const std::vector<legacy_hal::wifi_tx_report>& legacy_fates,
-    std::vector<WifiDebugTxPacketFateReport>* hidl_fates) {
-    if (!hidl_fates) {
-        return false;
-    }
-    *hidl_fates = {};
-    for (const auto& legacy_fate : legacy_fates) {
-        WifiDebugTxPacketFateReport hidl_fate;
-        if (!convertLegacyDebugTxPacketFateToHidl(legacy_fate, &hidl_fate)) {
-            return false;
-        }
-        hidl_fates->push_back(hidl_fate);
-    }
-    return true;
-}
-
-bool convertLegacyDebugRxPacketFateToHidl(
-    const legacy_hal::wifi_rx_report& legacy_fate,
-    WifiDebugRxPacketFateReport* hidl_fate) {
-    if (!hidl_fate) {
-        return false;
-    }
-    *hidl_fate = {};
-    hidl_fate->fate = convertLegacyDebugRxPacketFateToHidl(legacy_fate.fate);
-    return convertLegacyDebugPacketFateFrameToHidl(legacy_fate.frame_inf,
-                                                   &hidl_fate->frameInfo);
-}
-
-bool convertLegacyVectorOfDebugRxPacketFateToHidl(
-    const std::vector<legacy_hal::wifi_rx_report>& legacy_fates,
-    std::vector<WifiDebugRxPacketFateReport>* hidl_fates) {
-    if (!hidl_fates) {
-        return false;
-    }
-    *hidl_fates = {};
-    for (const auto& legacy_fate : legacy_fates) {
-        WifiDebugRxPacketFateReport hidl_fate;
-        if (!convertLegacyDebugRxPacketFateToHidl(legacy_fate, &hidl_fate)) {
-            return false;
-        }
-        hidl_fates->push_back(hidl_fate);
-    }
-    return true;
-}
-
-bool convertLegacyLinkLayerStatsToHidl(
-    const legacy_hal::LinkLayerStats& legacy_stats,
-    StaLinkLayerStats* hidl_stats) {
-    if (!hidl_stats) {
-        return false;
-    }
-    *hidl_stats = {};
-    // iface legacy_stats conversion.
-    hidl_stats->iface.beaconRx = legacy_stats.iface.beacon_rx;
-    hidl_stats->iface.avgRssiMgmt = legacy_stats.iface.rssi_mgmt;
-    hidl_stats->iface.wmeBePktStats.rxMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].rx_mpdu;
-    hidl_stats->iface.wmeBePktStats.txMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].tx_mpdu;
-    hidl_stats->iface.wmeBePktStats.lostMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].mpdu_lost;
-    hidl_stats->iface.wmeBePktStats.retries =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].retries;
-    hidl_stats->iface.wmeBkPktStats.rxMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].rx_mpdu;
-    hidl_stats->iface.wmeBkPktStats.txMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].tx_mpdu;
-    hidl_stats->iface.wmeBkPktStats.lostMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].mpdu_lost;
-    hidl_stats->iface.wmeBkPktStats.retries =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].retries;
-    hidl_stats->iface.wmeViPktStats.rxMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].rx_mpdu;
-    hidl_stats->iface.wmeViPktStats.txMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].tx_mpdu;
-    hidl_stats->iface.wmeViPktStats.lostMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].mpdu_lost;
-    hidl_stats->iface.wmeViPktStats.retries =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].retries;
-    hidl_stats->iface.wmeVoPktStats.rxMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].rx_mpdu;
-    hidl_stats->iface.wmeVoPktStats.txMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].tx_mpdu;
-    hidl_stats->iface.wmeVoPktStats.lostMpdu =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].mpdu_lost;
-    hidl_stats->iface.wmeVoPktStats.retries =
-        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].retries;
-    // radio legacy_stats conversion.
-    std::vector<StaLinkLayerRadioStats> hidl_radios_stats;
-    for (const auto& legacy_radio_stats : legacy_stats.radios) {
-        StaLinkLayerRadioStats hidl_radio_stats;
-        hidl_radio_stats.onTimeInMs = legacy_radio_stats.stats.on_time;
-        hidl_radio_stats.txTimeInMs = legacy_radio_stats.stats.tx_time;
-        hidl_radio_stats.rxTimeInMs = legacy_radio_stats.stats.rx_time;
-        hidl_radio_stats.onTimeInMsForScan =
-            legacy_radio_stats.stats.on_time_scan;
-        hidl_radio_stats.txTimeInMsPerLevel =
-            legacy_radio_stats.tx_time_per_levels;
-        hidl_radios_stats.push_back(hidl_radio_stats);
-    }
-    hidl_stats->radios = hidl_radios_stats;
-    // Timestamp in the HAL wrapper here since it's not provided in the legacy
-    // HAL API.
-    hidl_stats->timeStampInMs = uptimeMillis();
-    return true;
-}
-
-bool convertLegacyRoamingCapabilitiesToHidl(
-    const legacy_hal::wifi_roaming_capabilities& legacy_caps,
-    StaRoamingCapabilities* hidl_caps) {
-    if (!hidl_caps) {
-        return false;
-    }
-    *hidl_caps = {};
-    hidl_caps->maxBlacklistSize = legacy_caps.max_blacklist_size;
-    hidl_caps->maxWhitelistSize = legacy_caps.max_whitelist_size;
-    return true;
-}
-
-bool convertHidlRoamingConfigToLegacy(
-    const StaRoamingConfig& hidl_config,
-    legacy_hal::wifi_roaming_config* legacy_config) {
-    if (!legacy_config) {
-        return false;
-    }
-    *legacy_config = {};
-    if (hidl_config.bssidBlacklist.size() > MAX_BLACKLIST_BSSID ||
-        hidl_config.ssidWhitelist.size() > MAX_WHITELIST_SSID) {
-        return false;
-    }
-    legacy_config->num_blacklist_bssid = hidl_config.bssidBlacklist.size();
-    uint32_t i = 0;
-    for (const auto& bssid : hidl_config.bssidBlacklist) {
-        CHECK(bssid.size() == sizeof(legacy_hal::mac_addr));
-        memcpy(legacy_config->blacklist_bssid[i++], bssid.data(), bssid.size());
-    }
-    legacy_config->num_whitelist_ssid = hidl_config.ssidWhitelist.size();
-    i = 0;
-    for (const auto& ssid : hidl_config.ssidWhitelist) {
-        CHECK(ssid.size() <= sizeof(legacy_hal::ssid_t::ssid_str));
-        legacy_config->whitelist_ssid[i].length = ssid.size();
-        memcpy(legacy_config->whitelist_ssid[i].ssid_str, ssid.data(),
-               ssid.size());
-        i++;
-    }
-    return true;
-}
-
-legacy_hal::fw_roaming_state_t convertHidlRoamingStateToLegacy(
-    StaRoamingState state) {
-    switch (state) {
-        case StaRoamingState::ENABLED:
-            return legacy_hal::ROAMING_ENABLE;
-        case StaRoamingState::DISABLED:
-            return legacy_hal::ROAMING_DISABLE;
-    };
-    CHECK(false);
-}
-
-legacy_hal::NanMatchAlg convertHidlNanMatchAlgToLegacy(NanMatchAlg type) {
-    switch (type) {
-        case NanMatchAlg::MATCH_ONCE:
-            return legacy_hal::NAN_MATCH_ALG_MATCH_ONCE;
-        case NanMatchAlg::MATCH_CONTINUOUS:
-            return legacy_hal::NAN_MATCH_ALG_MATCH_CONTINUOUS;
-        case NanMatchAlg::MATCH_NEVER:
-            return legacy_hal::NAN_MATCH_ALG_MATCH_NEVER;
-    }
-    CHECK(false);
-}
-
-legacy_hal::NanPublishType convertHidlNanPublishTypeToLegacy(
-    NanPublishType type) {
-    switch (type) {
-        case NanPublishType::UNSOLICITED:
-            return legacy_hal::NAN_PUBLISH_TYPE_UNSOLICITED;
-        case NanPublishType::SOLICITED:
-            return legacy_hal::NAN_PUBLISH_TYPE_SOLICITED;
-        case NanPublishType::UNSOLICITED_SOLICITED:
-            return legacy_hal::NAN_PUBLISH_TYPE_UNSOLICITED_SOLICITED;
-    }
-    CHECK(false);
-}
-
-legacy_hal::NanTxType convertHidlNanTxTypeToLegacy(NanTxType type) {
-    switch (type) {
-        case NanTxType::BROADCAST:
-            return legacy_hal::NAN_TX_TYPE_BROADCAST;
-        case NanTxType::UNICAST:
-            return legacy_hal::NAN_TX_TYPE_UNICAST;
-    }
-    CHECK(false);
-}
-
-legacy_hal::NanSubscribeType convertHidlNanSubscribeTypeToLegacy(
-    NanSubscribeType type) {
-    switch (type) {
-        case NanSubscribeType::PASSIVE:
-            return legacy_hal::NAN_SUBSCRIBE_TYPE_PASSIVE;
-        case NanSubscribeType::ACTIVE:
-            return legacy_hal::NAN_SUBSCRIBE_TYPE_ACTIVE;
-    }
-    CHECK(false);
-}
-
-legacy_hal::NanSRFType convertHidlNanSrfTypeToLegacy(NanSrfType type) {
-    switch (type) {
-        case NanSrfType::BLOOM_FILTER:
-            return legacy_hal::NAN_SRF_ATTR_BLOOM_FILTER;
-        case NanSrfType::PARTIAL_MAC_ADDR:
-            return legacy_hal::NAN_SRF_ATTR_PARTIAL_MAC_ADDR;
-    }
-    CHECK(false);
-}
-
-legacy_hal::NanDataPathChannelCfg convertHidlNanDataPathChannelCfgToLegacy(
-    NanDataPathChannelCfg type) {
-    switch (type) {
-        case NanDataPathChannelCfg::CHANNEL_NOT_REQUESTED:
-            return legacy_hal::NAN_DP_CHANNEL_NOT_REQUESTED;
-        case NanDataPathChannelCfg::REQUEST_CHANNEL_SETUP:
-            return legacy_hal::NAN_DP_REQUEST_CHANNEL_SETUP;
-        case NanDataPathChannelCfg::FORCE_CHANNEL_SETUP:
-            return legacy_hal::NAN_DP_FORCE_CHANNEL_SETUP;
-    }
-    CHECK(false);
-}
-
-NanStatusType convertLegacyNanStatusTypeToHidl(legacy_hal::NanStatusType type) {
-    switch (type) {
-        case legacy_hal::NAN_STATUS_SUCCESS:
-            return NanStatusType::SUCCESS;
-        case legacy_hal::NAN_STATUS_INTERNAL_FAILURE:
-            return NanStatusType::INTERNAL_FAILURE;
-        case legacy_hal::NAN_STATUS_PROTOCOL_FAILURE:
-            return NanStatusType::PROTOCOL_FAILURE;
-        case legacy_hal::NAN_STATUS_INVALID_PUBLISH_SUBSCRIBE_ID:
-            return NanStatusType::INVALID_SESSION_ID;
-        case legacy_hal::NAN_STATUS_NO_RESOURCE_AVAILABLE:
-            return NanStatusType::NO_RESOURCES_AVAILABLE;
-        case legacy_hal::NAN_STATUS_INVALID_PARAM:
-            return NanStatusType::INVALID_ARGS;
-        case legacy_hal::NAN_STATUS_INVALID_REQUESTOR_INSTANCE_ID:
-            return NanStatusType::INVALID_PEER_ID;
-        case legacy_hal::NAN_STATUS_INVALID_NDP_ID:
-            return NanStatusType::INVALID_NDP_ID;
-        case legacy_hal::NAN_STATUS_NAN_NOT_ALLOWED:
-            return NanStatusType::NAN_NOT_ALLOWED;
-        case legacy_hal::NAN_STATUS_NO_OTA_ACK:
-            return NanStatusType::NO_OTA_ACK;
-        case legacy_hal::NAN_STATUS_ALREADY_ENABLED:
-            return NanStatusType::ALREADY_ENABLED;
-        case legacy_hal::NAN_STATUS_FOLLOWUP_QUEUE_FULL:
-            return NanStatusType::FOLLOWUP_TX_QUEUE_FULL;
-        case legacy_hal::NAN_STATUS_UNSUPPORTED_CONCURRENCY_NAN_DISABLED:
-            return NanStatusType::UNSUPPORTED_CONCURRENCY_NAN_DISABLED;
-    }
-    CHECK(false);
-}
-
-void convertToWifiNanStatus(legacy_hal::NanStatusType type, const char* str,
-                            size_t max_len, WifiNanStatus* wifiNanStatus) {
-    wifiNanStatus->status = convertLegacyNanStatusTypeToHidl(type);
-    wifiNanStatus->description = safeConvertChar(str, max_len);
-}
-
-bool convertHidlNanEnableRequestToLegacy(
-    const NanEnableRequest& hidl_request,
-    legacy_hal::NanEnableRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR)
-            << "convertHidlNanEnableRequestToLegacy: null legacy_request";
-        return false;
-    }
-    *legacy_request = {};
-
-    legacy_request->config_2dot4g_support = 1;
-    legacy_request->support_2dot4g_val =
-        hidl_request.operateInBand[(size_t)NanBandIndex::NAN_BAND_24GHZ];
-    legacy_request->config_support_5g = 1;
-    legacy_request->support_5g_val =
-        hidl_request.operateInBand[(size_t)NanBandIndex::NAN_BAND_5GHZ];
-    legacy_request->config_hop_count_limit = 1;
-    legacy_request->hop_count_limit_val = hidl_request.hopCountMax;
-    legacy_request->master_pref = hidl_request.configParams.masterPref;
-    legacy_request->discovery_indication_cfg = 0;
-    legacy_request->discovery_indication_cfg |=
-        hidl_request.configParams.disableDiscoveryAddressChangeIndication ? 0x1
-                                                                          : 0x0;
-    legacy_request->discovery_indication_cfg |=
-        hidl_request.configParams.disableStartedClusterIndication ? 0x2 : 0x0;
-    legacy_request->discovery_indication_cfg |=
-        hidl_request.configParams.disableJoinedClusterIndication ? 0x4 : 0x0;
-    legacy_request->config_sid_beacon = 1;
-    if (hidl_request.configParams.numberOfPublishServiceIdsInBeacon > 127) {
-        LOG(ERROR) << "convertHidlNanEnableRequestToLegacy: "
-                      "numberOfPublishServiceIdsInBeacon > 127";
-        return false;
-    }
-    legacy_request->sid_beacon_val =
-        (hidl_request.configParams.includePublishServiceIdsInBeacon ? 0x1
-                                                                    : 0x0) |
-        (hidl_request.configParams.numberOfPublishServiceIdsInBeacon << 1);
-    legacy_request->config_subscribe_sid_beacon = 1;
-    if (hidl_request.configParams.numberOfSubscribeServiceIdsInBeacon > 127) {
-        LOG(ERROR) << "convertHidlNanEnableRequestToLegacy: "
-                      "numberOfSubscribeServiceIdsInBeacon > 127";
-        return false;
-    }
-    legacy_request->subscribe_sid_beacon_val =
-        (hidl_request.configParams.includeSubscribeServiceIdsInBeacon ? 0x1
-                                                                      : 0x0) |
-        (hidl_request.configParams.numberOfSubscribeServiceIdsInBeacon << 1);
-    legacy_request->config_rssi_window_size = 1;
-    legacy_request->rssi_window_size_val =
-        hidl_request.configParams.rssiWindowSize;
-    legacy_request->config_disc_mac_addr_randomization = 1;
-    legacy_request->disc_mac_addr_rand_interval_sec =
-        hidl_request.configParams.macAddressRandomizationIntervalSec;
-    legacy_request->config_2dot4g_rssi_close = 1;
-    if (hidl_request.configParams.bandSpecificConfig.size() != 2) {
-        LOG(ERROR) << "convertHidlNanEnableRequestToLegacy: "
-                      "bandSpecificConfig.size() != 2";
-        return false;
-    }
-    legacy_request->rssi_close_2dot4g_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .rssiClose;
-    legacy_request->config_2dot4g_rssi_middle = 1;
-    legacy_request->rssi_middle_2dot4g_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .rssiMiddle;
-    legacy_request->config_2dot4g_rssi_proximity = 1;
-    legacy_request->rssi_proximity_2dot4g_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .rssiCloseProximity;
-    legacy_request->config_scan_params = 1;
-    legacy_request->scan_params_val
-        .dwell_time[legacy_hal::NAN_CHANNEL_24G_BAND] =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .dwellTimeMs;
-    legacy_request->scan_params_val
-        .scan_period[legacy_hal::NAN_CHANNEL_24G_BAND] =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .scanPeriodSec;
-    legacy_request->config_dw.config_2dot4g_dw_band =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .validDiscoveryWindowIntervalVal;
-    legacy_request->config_dw.dw_2dot4g_interval_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .discoveryWindowIntervalVal;
-    legacy_request->config_5g_rssi_close = 1;
-    legacy_request->rssi_close_5g_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .rssiClose;
-    legacy_request->config_5g_rssi_middle = 1;
-    legacy_request->rssi_middle_5g_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .rssiMiddle;
-    legacy_request->config_5g_rssi_close_proximity = 1;
-    legacy_request->rssi_close_proximity_5g_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .rssiCloseProximity;
-    legacy_request->scan_params_val
-        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .dwellTimeMs;
-    legacy_request->scan_params_val
-        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .scanPeriodSec;
-    legacy_request->scan_params_val
-        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .dwellTimeMs;
-    legacy_request->scan_params_val
-        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .scanPeriodSec;
-    legacy_request->config_dw.config_5g_dw_band =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .validDiscoveryWindowIntervalVal;
-    legacy_request->config_dw.dw_5g_interval_val =
-        hidl_request.configParams
-            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .discoveryWindowIntervalVal;
-    if (hidl_request.debugConfigs.validClusterIdVals) {
-        legacy_request->cluster_low =
-            hidl_request.debugConfigs.clusterIdBottomRangeVal;
-        legacy_request->cluster_high =
-            hidl_request.debugConfigs.clusterIdTopRangeVal;
-    } else {  // need 'else' since not configurable in legacy HAL
-        legacy_request->cluster_low = 0x0000;
-        legacy_request->cluster_high = 0xFFFF;
-    }
-    legacy_request->config_intf_addr =
-        hidl_request.debugConfigs.validIntfAddrVal;
-    memcpy(legacy_request->intf_addr_val,
-           hidl_request.debugConfigs.intfAddrVal.data(), 6);
-    legacy_request->config_oui = hidl_request.debugConfigs.validOuiVal;
-    legacy_request->oui_val = hidl_request.debugConfigs.ouiVal;
-    legacy_request->config_random_factor_force =
-        hidl_request.debugConfigs.validRandomFactorForceVal;
-    legacy_request->random_factor_force_val =
-        hidl_request.debugConfigs.randomFactorForceVal;
-    legacy_request->config_hop_count_force =
-        hidl_request.debugConfigs.validHopCountForceVal;
-    legacy_request->hop_count_force_val =
-        hidl_request.debugConfigs.hopCountForceVal;
-    legacy_request->config_24g_channel =
-        hidl_request.debugConfigs.validDiscoveryChannelVal;
-    legacy_request->channel_24g_val =
-        hidl_request.debugConfigs
-            .discoveryChannelMhzVal[(size_t)NanBandIndex::NAN_BAND_24GHZ];
-    legacy_request->config_5g_channel =
-        hidl_request.debugConfigs.validDiscoveryChannelVal;
-    legacy_request->channel_5g_val =
-        hidl_request.debugConfigs
-            .discoveryChannelMhzVal[(size_t)NanBandIndex::NAN_BAND_5GHZ];
-    legacy_request->config_2dot4g_beacons =
-        hidl_request.debugConfigs.validUseBeaconsInBandVal;
-    legacy_request->beacon_2dot4g_val =
-        hidl_request.debugConfigs
-            .useBeaconsInBandVal[(size_t)NanBandIndex::NAN_BAND_24GHZ];
-    legacy_request->config_5g_beacons =
-        hidl_request.debugConfigs.validUseBeaconsInBandVal;
-    legacy_request->beacon_5g_val =
-        hidl_request.debugConfigs
-            .useBeaconsInBandVal[(size_t)NanBandIndex::NAN_BAND_5GHZ];
-    legacy_request->config_2dot4g_sdf =
-        hidl_request.debugConfigs.validUseSdfInBandVal;
-    legacy_request->sdf_2dot4g_val =
-        hidl_request.debugConfigs
-            .useSdfInBandVal[(size_t)NanBandIndex::NAN_BAND_24GHZ];
-    legacy_request->config_5g_sdf =
-        hidl_request.debugConfigs.validUseSdfInBandVal;
-    legacy_request->sdf_5g_val =
-        hidl_request.debugConfigs
-            .useSdfInBandVal[(size_t)NanBandIndex::NAN_BAND_5GHZ];
-
-    return true;
-}
-
-bool convertHidlNanEnableRequest_1_2ToLegacy(
-    const NanEnableRequest& hidl_request1,
-    const NanConfigRequestSupplemental& hidl_request2,
-    legacy_hal::NanEnableRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR)
-            << "convertHidlNanEnableRequest_1_2ToLegacy: null legacy_request";
-        return false;
-    }
-
-    *legacy_request = {};
-    if (!convertHidlNanEnableRequestToLegacy(hidl_request1, legacy_request)) {
-        return false;
-    }
-
-    legacy_request->config_discovery_beacon_int = 1;
-    legacy_request->discovery_beacon_interval =
-        hidl_request2.discoveryBeaconIntervalMs;
-    legacy_request->config_nss = 1;
-    legacy_request->nss = hidl_request2.numberOfSpatialStreamsInDiscovery;
-    legacy_request->config_dw_early_termination = 1;
-    legacy_request->enable_dw_termination =
-        hidl_request2.enableDiscoveryWindowEarlyTermination;
-    legacy_request->config_enable_ranging = 1;
-    legacy_request->enable_ranging = hidl_request2.enableRanging;
-
-    return true;
-}
-
-bool convertHidlNanPublishRequestToLegacy(
-    const NanPublishRequest& hidl_request,
-    legacy_hal::NanPublishRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR)
-            << "convertHidlNanPublishRequestToLegacy: null legacy_request";
-        return false;
-    }
-    *legacy_request = {};
-
-    legacy_request->publish_id = hidl_request.baseConfigs.sessionId;
-    legacy_request->ttl = hidl_request.baseConfigs.ttlSec;
-    legacy_request->period = hidl_request.baseConfigs.discoveryWindowPeriod;
-    legacy_request->publish_count = hidl_request.baseConfigs.discoveryCount;
-    legacy_request->service_name_len =
-        hidl_request.baseConfigs.serviceName.size();
-    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
-        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: service_name_len "
-                      "too large";
-        return false;
-    }
-    memcpy(legacy_request->service_name,
-           hidl_request.baseConfigs.serviceName.data(),
-           legacy_request->service_name_len);
-    legacy_request->publish_match_indicator = convertHidlNanMatchAlgToLegacy(
-        hidl_request.baseConfigs.discoveryMatchIndicator);
-    legacy_request->service_specific_info_len =
-        hidl_request.baseConfigs.serviceSpecificInfo.size();
-    if (legacy_request->service_specific_info_len >
-        NAN_MAX_SERVICE_SPECIFIC_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
-                      "service_specific_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->service_specific_info,
-           hidl_request.baseConfigs.serviceSpecificInfo.data(),
-           legacy_request->service_specific_info_len);
-    legacy_request->sdea_service_specific_info_len =
-        hidl_request.baseConfigs.extendedServiceSpecificInfo.size();
-    if (legacy_request->sdea_service_specific_info_len >
-        NAN_MAX_SDEA_SERVICE_SPECIFIC_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
-                      "sdea_service_specific_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->sdea_service_specific_info,
-           hidl_request.baseConfigs.extendedServiceSpecificInfo.data(),
-           legacy_request->sdea_service_specific_info_len);
-    legacy_request->rx_match_filter_len =
-        hidl_request.baseConfigs.rxMatchFilter.size();
-    if (legacy_request->rx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
-        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
-                      "rx_match_filter_len too large";
-        return false;
-    }
-    memcpy(legacy_request->rx_match_filter,
-           hidl_request.baseConfigs.rxMatchFilter.data(),
-           legacy_request->rx_match_filter_len);
-    legacy_request->tx_match_filter_len =
-        hidl_request.baseConfigs.txMatchFilter.size();
-    if (legacy_request->tx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
-        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
-                      "tx_match_filter_len too large";
-        return false;
-    }
-    memcpy(legacy_request->tx_match_filter,
-           hidl_request.baseConfigs.txMatchFilter.data(),
-           legacy_request->tx_match_filter_len);
-    legacy_request->rssi_threshold_flag =
-        hidl_request.baseConfigs.useRssiThreshold;
-    legacy_request->recv_indication_cfg = 0;
-    legacy_request->recv_indication_cfg |=
-        hidl_request.baseConfigs.disableDiscoveryTerminationIndication ? 0x1
-                                                                       : 0x0;
-    legacy_request->recv_indication_cfg |=
-        hidl_request.baseConfigs.disableMatchExpirationIndication ? 0x2 : 0x0;
-    legacy_request->recv_indication_cfg |=
-        hidl_request.baseConfigs.disableFollowupReceivedIndication ? 0x4 : 0x0;
-    legacy_request->recv_indication_cfg |= 0x8;
-    legacy_request->cipher_type =
-        (unsigned int)hidl_request.baseConfigs.securityConfig.cipherType;
-    if (hidl_request.baseConfigs.securityConfig.securityType ==
-        NanDataPathSecurityType::PMK) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
-        legacy_request->key_info.body.pmk_info.pmk_len =
-            hidl_request.baseConfigs.securityConfig.pmk.size();
-        if (legacy_request->key_info.body.pmk_info.pmk_len !=
-            NAN_PMK_INFO_LEN) {
-            LOG(ERROR)
-                << "convertHidlNanPublishRequestToLegacy: invalid pmk_len";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.pmk_info.pmk,
-               hidl_request.baseConfigs.securityConfig.pmk.data(),
-               legacy_request->key_info.body.pmk_info.pmk_len);
-    }
-    if (hidl_request.baseConfigs.securityConfig.securityType ==
-        NanDataPathSecurityType::PASSPHRASE) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
-        legacy_request->key_info.body.passphrase_info.passphrase_len =
-            hidl_request.baseConfigs.securityConfig.passphrase.size();
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
-            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
-                          "passphrase_len too small";
-            return false;
-        }
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
-            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
-                          "passphrase_len too large";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
-               hidl_request.baseConfigs.securityConfig.passphrase.data(),
-               legacy_request->key_info.body.passphrase_info.passphrase_len);
-    }
-    legacy_request->sdea_params.security_cfg =
-        (hidl_request.baseConfigs.securityConfig.securityType !=
-         NanDataPathSecurityType::OPEN)
-            ? legacy_hal::NAN_DP_CONFIG_SECURITY
-            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
-    legacy_request->sdea_params.ranging_state =
-        hidl_request.baseConfigs.rangingRequired
-            ? legacy_hal::NAN_RANGING_ENABLE
-            : legacy_hal::NAN_RANGING_DISABLE;
-    legacy_request->ranging_cfg.ranging_interval_msec =
-        hidl_request.baseConfigs.rangingIntervalMsec;
-    legacy_request->ranging_cfg.config_ranging_indications =
-        hidl_request.baseConfigs.configRangingIndications;
-    legacy_request->ranging_cfg.distance_ingress_mm =
-        hidl_request.baseConfigs.distanceIngressCm * 10;
-    legacy_request->ranging_cfg.distance_egress_mm =
-        hidl_request.baseConfigs.distanceEgressCm * 10;
-    legacy_request->ranging_auto_response =
-        hidl_request.baseConfigs.rangingRequired
-            ? legacy_hal::NAN_RANGING_AUTO_RESPONSE_ENABLE
-            : legacy_hal::NAN_RANGING_AUTO_RESPONSE_DISABLE;
-    legacy_request->sdea_params.range_report =
-        legacy_hal::NAN_DISABLE_RANGE_REPORT;
-    legacy_request->publish_type =
-        convertHidlNanPublishTypeToLegacy(hidl_request.publishType);
-    legacy_request->tx_type = convertHidlNanTxTypeToLegacy(hidl_request.txType);
-    legacy_request->service_responder_policy =
-        hidl_request.autoAcceptDataPathRequests
-            ? legacy_hal::NAN_SERVICE_ACCEPT_POLICY_ALL
-            : legacy_hal::NAN_SERVICE_ACCEPT_POLICY_NONE;
-
-    return true;
-}
-
-bool convertHidlNanSubscribeRequestToLegacy(
-    const NanSubscribeRequest& hidl_request,
-    legacy_hal::NanSubscribeRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR)
-            << "convertHidlNanSubscribeRequestToLegacy: legacy_request is null";
-        return false;
-    }
-    *legacy_request = {};
-
-    legacy_request->subscribe_id = hidl_request.baseConfigs.sessionId;
-    legacy_request->ttl = hidl_request.baseConfigs.ttlSec;
-    legacy_request->period = hidl_request.baseConfigs.discoveryWindowPeriod;
-    legacy_request->subscribe_count = hidl_request.baseConfigs.discoveryCount;
-    legacy_request->service_name_len =
-        hidl_request.baseConfigs.serviceName.size();
-    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
-        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                      "service_name_len too large";
-        return false;
-    }
-    memcpy(legacy_request->service_name,
-           hidl_request.baseConfigs.serviceName.data(),
-           legacy_request->service_name_len);
-    legacy_request->subscribe_match_indicator = convertHidlNanMatchAlgToLegacy(
-        hidl_request.baseConfigs.discoveryMatchIndicator);
-    legacy_request->service_specific_info_len =
-        hidl_request.baseConfigs.serviceSpecificInfo.size();
-    if (legacy_request->service_specific_info_len >
-        NAN_MAX_SERVICE_SPECIFIC_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                      "service_specific_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->service_specific_info,
-           hidl_request.baseConfigs.serviceSpecificInfo.data(),
-           legacy_request->service_specific_info_len);
-    legacy_request->sdea_service_specific_info_len =
-        hidl_request.baseConfigs.extendedServiceSpecificInfo.size();
-    if (legacy_request->sdea_service_specific_info_len >
-        NAN_MAX_SDEA_SERVICE_SPECIFIC_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                      "sdea_service_specific_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->sdea_service_specific_info,
-           hidl_request.baseConfigs.extendedServiceSpecificInfo.data(),
-           legacy_request->sdea_service_specific_info_len);
-    legacy_request->rx_match_filter_len =
-        hidl_request.baseConfigs.rxMatchFilter.size();
-    if (legacy_request->rx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
-        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                      "rx_match_filter_len too large";
-        return false;
-    }
-    memcpy(legacy_request->rx_match_filter,
-           hidl_request.baseConfigs.rxMatchFilter.data(),
-           legacy_request->rx_match_filter_len);
-    legacy_request->tx_match_filter_len =
-        hidl_request.baseConfigs.txMatchFilter.size();
-    if (legacy_request->tx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
-        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                      "tx_match_filter_len too large";
-        return false;
-    }
-    memcpy(legacy_request->tx_match_filter,
-           hidl_request.baseConfigs.txMatchFilter.data(),
-           legacy_request->tx_match_filter_len);
-    legacy_request->rssi_threshold_flag =
-        hidl_request.baseConfigs.useRssiThreshold;
-    legacy_request->recv_indication_cfg = 0;
-    legacy_request->recv_indication_cfg |=
-        hidl_request.baseConfigs.disableDiscoveryTerminationIndication ? 0x1
-                                                                       : 0x0;
-    legacy_request->recv_indication_cfg |=
-        hidl_request.baseConfigs.disableMatchExpirationIndication ? 0x2 : 0x0;
-    legacy_request->recv_indication_cfg |=
-        hidl_request.baseConfigs.disableFollowupReceivedIndication ? 0x4 : 0x0;
-    legacy_request->cipher_type =
-        (unsigned int)hidl_request.baseConfigs.securityConfig.cipherType;
-    if (hidl_request.baseConfigs.securityConfig.securityType ==
-        NanDataPathSecurityType::PMK) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
-        legacy_request->key_info.body.pmk_info.pmk_len =
-            hidl_request.baseConfigs.securityConfig.pmk.size();
-        if (legacy_request->key_info.body.pmk_info.pmk_len !=
-            NAN_PMK_INFO_LEN) {
-            LOG(ERROR)
-                << "convertHidlNanSubscribeRequestToLegacy: invalid pmk_len";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.pmk_info.pmk,
-               hidl_request.baseConfigs.securityConfig.pmk.data(),
-               legacy_request->key_info.body.pmk_info.pmk_len);
-    }
-    if (hidl_request.baseConfigs.securityConfig.securityType ==
-        NanDataPathSecurityType::PASSPHRASE) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
-        legacy_request->key_info.body.passphrase_info.passphrase_len =
-            hidl_request.baseConfigs.securityConfig.passphrase.size();
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
-            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                          "passphrase_len too small";
-            return false;
-        }
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
-            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                          "passphrase_len too large";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
-               hidl_request.baseConfigs.securityConfig.passphrase.data(),
-               legacy_request->key_info.body.passphrase_info.passphrase_len);
-    }
-    legacy_request->sdea_params.security_cfg =
-        (hidl_request.baseConfigs.securityConfig.securityType !=
-         NanDataPathSecurityType::OPEN)
-            ? legacy_hal::NAN_DP_CONFIG_SECURITY
-            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
-    legacy_request->sdea_params.ranging_state =
-        hidl_request.baseConfigs.rangingRequired
-            ? legacy_hal::NAN_RANGING_ENABLE
-            : legacy_hal::NAN_RANGING_DISABLE;
-    legacy_request->ranging_cfg.ranging_interval_msec =
-        hidl_request.baseConfigs.rangingIntervalMsec;
-    legacy_request->ranging_cfg.config_ranging_indications =
-        hidl_request.baseConfigs.configRangingIndications;
-    legacy_request->ranging_cfg.distance_ingress_mm =
-        hidl_request.baseConfigs.distanceIngressCm * 10;
-    legacy_request->ranging_cfg.distance_egress_mm =
-        hidl_request.baseConfigs.distanceEgressCm * 10;
-    legacy_request->ranging_auto_response =
-        hidl_request.baseConfigs.rangingRequired
-            ? legacy_hal::NAN_RANGING_AUTO_RESPONSE_ENABLE
-            : legacy_hal::NAN_RANGING_AUTO_RESPONSE_DISABLE;
-    legacy_request->sdea_params.range_report =
-        legacy_hal::NAN_DISABLE_RANGE_REPORT;
-    legacy_request->subscribe_type =
-        convertHidlNanSubscribeTypeToLegacy(hidl_request.subscribeType);
-    legacy_request->serviceResponseFilter =
-        convertHidlNanSrfTypeToLegacy(hidl_request.srfType);
-    legacy_request->serviceResponseInclude =
-        hidl_request.srfRespondIfInAddressSet
-            ? legacy_hal::NAN_SRF_INCLUDE_RESPOND
-            : legacy_hal::NAN_SRF_INCLUDE_DO_NOT_RESPOND;
-    legacy_request->useServiceResponseFilter =
-        hidl_request.shouldUseSrf ? legacy_hal::NAN_USE_SRF
-                                  : legacy_hal::NAN_DO_NOT_USE_SRF;
-    legacy_request->ssiRequiredForMatchIndication =
-        hidl_request.isSsiRequiredForMatch
-            ? legacy_hal::NAN_SSI_REQUIRED_IN_MATCH_IND
-            : legacy_hal::NAN_SSI_NOT_REQUIRED_IN_MATCH_IND;
-    legacy_request->num_intf_addr_present = hidl_request.intfAddr.size();
-    if (legacy_request->num_intf_addr_present > NAN_MAX_SUBSCRIBE_MAX_ADDRESS) {
-        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
-                      "num_intf_addr_present - too many";
-        return false;
-    }
-    for (int i = 0; i < legacy_request->num_intf_addr_present; i++) {
-        memcpy(legacy_request->intf_addr[i], hidl_request.intfAddr[i].data(),
-               6);
-    }
-
-    return true;
-}
-
-bool convertHidlNanTransmitFollowupRequestToLegacy(
-    const NanTransmitFollowupRequest& hidl_request,
-    legacy_hal::NanTransmitFollowupRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanTransmitFollowupRequestToLegacy: "
-                      "legacy_request is null";
-        return false;
-    }
-    *legacy_request = {};
-
-    legacy_request->publish_subscribe_id = hidl_request.discoverySessionId;
-    legacy_request->requestor_instance_id = hidl_request.peerId;
-    memcpy(legacy_request->addr, hidl_request.addr.data(), 6);
-    legacy_request->priority = hidl_request.isHighPriority
-                                   ? legacy_hal::NAN_TX_PRIORITY_HIGH
-                                   : legacy_hal::NAN_TX_PRIORITY_NORMAL;
-    legacy_request->dw_or_faw = hidl_request.shouldUseDiscoveryWindow
-                                    ? legacy_hal::NAN_TRANSMIT_IN_DW
-                                    : legacy_hal::NAN_TRANSMIT_IN_FAW;
-    legacy_request->service_specific_info_len =
-        hidl_request.serviceSpecificInfo.size();
-    if (legacy_request->service_specific_info_len >
-        NAN_MAX_SERVICE_SPECIFIC_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanTransmitFollowupRequestToLegacy: "
-                      "service_specific_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->service_specific_info,
-           hidl_request.serviceSpecificInfo.data(),
-           legacy_request->service_specific_info_len);
-    legacy_request->sdea_service_specific_info_len =
-        hidl_request.extendedServiceSpecificInfo.size();
-    if (legacy_request->sdea_service_specific_info_len >
-        NAN_MAX_SDEA_SERVICE_SPECIFIC_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanTransmitFollowupRequestToLegacy: "
-                      "sdea_service_specific_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->sdea_service_specific_info,
-           hidl_request.extendedServiceSpecificInfo.data(),
-           legacy_request->sdea_service_specific_info_len);
-    legacy_request->recv_indication_cfg =
-        hidl_request.disableFollowupResultIndication ? 0x1 : 0x0;
-
-    return true;
-}
-
-bool convertHidlNanConfigRequestToLegacy(
-    const NanConfigRequest& hidl_request,
-    legacy_hal::NanConfigRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR)
-            << "convertHidlNanConfigRequestToLegacy: legacy_request is null";
-        return false;
-    }
-    *legacy_request = {};
-
-    // TODO: b/34059183 tracks missing configurations in legacy HAL or uknown
-    // defaults
-    legacy_request->master_pref = hidl_request.masterPref;
-    legacy_request->discovery_indication_cfg = 0;
-    legacy_request->discovery_indication_cfg |=
-        hidl_request.disableDiscoveryAddressChangeIndication ? 0x1 : 0x0;
-    legacy_request->discovery_indication_cfg |=
-        hidl_request.disableStartedClusterIndication ? 0x2 : 0x0;
-    legacy_request->discovery_indication_cfg |=
-        hidl_request.disableJoinedClusterIndication ? 0x4 : 0x0;
-    legacy_request->config_sid_beacon = 1;
-    if (hidl_request.numberOfPublishServiceIdsInBeacon > 127) {
-        LOG(ERROR) << "convertHidlNanConfigRequestToLegacy: "
-                      "numberOfPublishServiceIdsInBeacon > 127";
-        return false;
-    }
-    legacy_request->sid_beacon =
-        (hidl_request.includePublishServiceIdsInBeacon ? 0x1 : 0x0) |
-        (hidl_request.numberOfPublishServiceIdsInBeacon << 1);
-    legacy_request->config_subscribe_sid_beacon = 1;
-    if (hidl_request.numberOfSubscribeServiceIdsInBeacon > 127) {
-        LOG(ERROR) << "convertHidlNanConfigRequestToLegacy: "
-                      "numberOfSubscribeServiceIdsInBeacon > 127";
-        return false;
-    }
-    legacy_request->subscribe_sid_beacon_val =
-        (hidl_request.includeSubscribeServiceIdsInBeacon ? 0x1 : 0x0) |
-        (hidl_request.numberOfSubscribeServiceIdsInBeacon << 1);
-    legacy_request->config_rssi_window_size = 1;
-    legacy_request->rssi_window_size_val = hidl_request.rssiWindowSize;
-    legacy_request->config_disc_mac_addr_randomization = 1;
-    legacy_request->disc_mac_addr_rand_interval_sec =
-        hidl_request.macAddressRandomizationIntervalSec;
-    /* TODO : missing
-    legacy_request->config_2dot4g_rssi_close = 1;
-    legacy_request->rssi_close_2dot4g_val =
-          hidl_request.bandSpecificConfig[
-              (size_t) NanBandIndex::NAN_BAND_24GHZ].rssiClose;
-    legacy_request->config_2dot4g_rssi_middle = 1;
-    legacy_request->rssi_middle_2dot4g_val =
-          hidl_request.bandSpecificConfig[
-              (size_t) NanBandIndex::NAN_BAND_24GHZ].rssiMiddle;
-    legacy_request->config_2dot4g_rssi_proximity = 1;
-    legacy_request->rssi_proximity_2dot4g_val =
-          hidl_request.bandSpecificConfig[
-              (size_t) NanBandIndex::NAN_BAND_24GHZ].rssiCloseProximity;
-    */
-    legacy_request->config_scan_params = 1;
-    legacy_request->scan_params_val
-        .dwell_time[legacy_hal::NAN_CHANNEL_24G_BAND] =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .dwellTimeMs;
-    legacy_request->scan_params_val
-        .scan_period[legacy_hal::NAN_CHANNEL_24G_BAND] =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .scanPeriodSec;
-    legacy_request->config_dw.config_2dot4g_dw_band =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .validDiscoveryWindowIntervalVal;
-    legacy_request->config_dw.dw_2dot4g_interval_val =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
-            .discoveryWindowIntervalVal;
-    /* TODO: missing
-    legacy_request->config_5g_rssi_close = 1;
-    legacy_request->rssi_close_5g_val =
-          hidl_request.bandSpecificConfig[
-              (size_t) NanBandIndex::NAN_BAND_5GHZ].rssiClose;
-    legacy_request->config_5g_rssi_middle = 1;
-    legacy_request->rssi_middle_5g_val =
-          hidl_request.bandSpecificConfig[
-              (size_t) NanBandIndex::NAN_BAND_5GHZ].rssiMiddle;
-    */
-    legacy_request->config_5g_rssi_close_proximity = 1;
-    legacy_request->rssi_close_proximity_5g_val =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .rssiCloseProximity;
-    legacy_request->scan_params_val
-        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .dwellTimeMs;
-    legacy_request->scan_params_val
-        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .scanPeriodSec;
-    legacy_request->scan_params_val
-        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .dwellTimeMs;
-    legacy_request->scan_params_val
-        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .scanPeriodSec;
-    legacy_request->config_dw.config_5g_dw_band =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .validDiscoveryWindowIntervalVal;
-    legacy_request->config_dw.dw_5g_interval_val =
-        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
-            .discoveryWindowIntervalVal;
-
-    return true;
-}
-
-bool convertHidlNanConfigRequest_1_2ToLegacy(
-    const NanConfigRequest& hidl_request1,
-    const NanConfigRequestSupplemental& hidl_request2,
-    legacy_hal::NanConfigRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanConfigRequest_1_2ToLegacy: legacy_request "
-                      "is null";
-        return false;
-    }
-
-    *legacy_request = {};
-    if (!convertHidlNanConfigRequestToLegacy(hidl_request1, legacy_request)) {
-        return false;
-    }
-
-    legacy_request->config_discovery_beacon_int = 1;
-    legacy_request->discovery_beacon_interval =
-        hidl_request2.discoveryBeaconIntervalMs;
-    legacy_request->config_nss = 1;
-    legacy_request->nss = hidl_request2.numberOfSpatialStreamsInDiscovery;
-    legacy_request->config_dw_early_termination = 1;
-    legacy_request->enable_dw_termination =
-        hidl_request2.enableDiscoveryWindowEarlyTermination;
-    legacy_request->config_enable_ranging = 1;
-    legacy_request->enable_ranging = hidl_request2.enableRanging;
-
-    return true;
-}
-
-bool convertHidlNanDataPathInitiatorRequestToLegacy(
-    const NanInitiateDataPathRequest& hidl_request,
-    legacy_hal::NanDataPathInitiatorRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
-                      "legacy_request is null";
-        return false;
-    }
-    *legacy_request = {};
-
-    legacy_request->requestor_instance_id = hidl_request.peerId;
-    memcpy(legacy_request->peer_disc_mac_addr,
-           hidl_request.peerDiscMacAddr.data(), 6);
-    legacy_request->channel_request_type =
-        convertHidlNanDataPathChannelCfgToLegacy(
-            hidl_request.channelRequestType);
-    legacy_request->channel = hidl_request.channel;
-    strcpy(legacy_request->ndp_iface, hidl_request.ifaceName.c_str());
-    legacy_request->ndp_cfg.security_cfg =
-        (hidl_request.securityConfig.securityType !=
-         NanDataPathSecurityType::OPEN)
-            ? legacy_hal::NAN_DP_CONFIG_SECURITY
-            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
-    legacy_request->app_info.ndp_app_info_len = hidl_request.appInfo.size();
-    if (legacy_request->app_info.ndp_app_info_len > NAN_DP_MAX_APP_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
-                      "ndp_app_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->app_info.ndp_app_info, hidl_request.appInfo.data(),
-           legacy_request->app_info.ndp_app_info_len);
-    legacy_request->cipher_type =
-        (unsigned int)hidl_request.securityConfig.cipherType;
-    if (hidl_request.securityConfig.securityType ==
-        NanDataPathSecurityType::PMK) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
-        legacy_request->key_info.body.pmk_info.pmk_len =
-            hidl_request.securityConfig.pmk.size();
-        if (legacy_request->key_info.body.pmk_info.pmk_len !=
-            NAN_PMK_INFO_LEN) {
-            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
-                          "invalid pmk_len";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.pmk_info.pmk,
-               hidl_request.securityConfig.pmk.data(),
-               legacy_request->key_info.body.pmk_info.pmk_len);
-    }
-    if (hidl_request.securityConfig.securityType ==
-        NanDataPathSecurityType::PASSPHRASE) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
-        legacy_request->key_info.body.passphrase_info.passphrase_len =
-            hidl_request.securityConfig.passphrase.size();
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
-            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
-                          "passphrase_len too small";
-            return false;
-        }
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
-            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
-                          "passphrase_len too large";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
-               hidl_request.securityConfig.passphrase.data(),
-               legacy_request->key_info.body.passphrase_info.passphrase_len);
-    }
-    legacy_request->service_name_len = hidl_request.serviceNameOutOfBand.size();
-    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
-        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
-                      "service_name_len too large";
-        return false;
-    }
-    memcpy(legacy_request->service_name,
-           hidl_request.serviceNameOutOfBand.data(),
-           legacy_request->service_name_len);
-
-    return true;
-}
-
-bool convertHidlNanDataPathIndicationResponseToLegacy(
-    const NanRespondToDataPathIndicationRequest& hidl_request,
-    legacy_hal::NanDataPathIndicationResponse* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
-                      "legacy_request is null";
-        return false;
-    }
-    *legacy_request = {};
-
-    legacy_request->rsp_code = hidl_request.acceptRequest
-                                   ? legacy_hal::NAN_DP_REQUEST_ACCEPT
-                                   : legacy_hal::NAN_DP_REQUEST_REJECT;
-    legacy_request->ndp_instance_id = hidl_request.ndpInstanceId;
-    strcpy(legacy_request->ndp_iface, hidl_request.ifaceName.c_str());
-    legacy_request->ndp_cfg.security_cfg =
-        (hidl_request.securityConfig.securityType !=
-         NanDataPathSecurityType::OPEN)
-            ? legacy_hal::NAN_DP_CONFIG_SECURITY
-            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
-    legacy_request->app_info.ndp_app_info_len = hidl_request.appInfo.size();
-    if (legacy_request->app_info.ndp_app_info_len > NAN_DP_MAX_APP_INFO_LEN) {
-        LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
-                      "ndp_app_info_len too large";
-        return false;
-    }
-    memcpy(legacy_request->app_info.ndp_app_info, hidl_request.appInfo.data(),
-           legacy_request->app_info.ndp_app_info_len);
-    legacy_request->cipher_type =
-        (unsigned int)hidl_request.securityConfig.cipherType;
-    if (hidl_request.securityConfig.securityType ==
-        NanDataPathSecurityType::PMK) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
-        legacy_request->key_info.body.pmk_info.pmk_len =
-            hidl_request.securityConfig.pmk.size();
-        if (legacy_request->key_info.body.pmk_info.pmk_len !=
-            NAN_PMK_INFO_LEN) {
-            LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
-                          "invalid pmk_len";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.pmk_info.pmk,
-               hidl_request.securityConfig.pmk.data(),
-               legacy_request->key_info.body.pmk_info.pmk_len);
-    }
-    if (hidl_request.securityConfig.securityType ==
-        NanDataPathSecurityType::PASSPHRASE) {
-        legacy_request->key_info.key_type =
-            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
-        legacy_request->key_info.body.passphrase_info.passphrase_len =
-            hidl_request.securityConfig.passphrase.size();
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
-            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
-                          "passphrase_len too small";
-            return false;
-        }
-        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
-            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
-            LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
-                          "passphrase_len too large";
-            return false;
-        }
-        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
-               hidl_request.securityConfig.passphrase.data(),
-               legacy_request->key_info.body.passphrase_info.passphrase_len);
-    }
-    legacy_request->service_name_len = hidl_request.serviceNameOutOfBand.size();
-    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
-        LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
-                      "service_name_len too large";
-        return false;
-    }
-    memcpy(legacy_request->service_name,
-           hidl_request.serviceNameOutOfBand.data(),
-           legacy_request->service_name_len);
-
-    return true;
-}
-
-bool convertLegacyNanResponseHeaderToHidl(
-    const legacy_hal::NanResponseMsg& legacy_response,
-    WifiNanStatus* wifiNanStatus) {
-    if (!wifiNanStatus) {
-        LOG(ERROR)
-            << "convertLegacyNanResponseHeaderToHidl: wifiNanStatus is null";
-        return false;
-    }
-    *wifiNanStatus = {};
-
-    convertToWifiNanStatus(legacy_response.status, legacy_response.nan_error,
-                           sizeof(legacy_response.nan_error), wifiNanStatus);
-    return true;
-}
-
-bool convertLegacyNanCapabilitiesResponseToHidl(
-    const legacy_hal::NanCapabilities& legacy_response,
-    NanCapabilities* hidl_response) {
-    if (!hidl_response) {
-        LOG(ERROR) << "convertLegacyNanCapabilitiesResponseToHidl: "
-                      "hidl_response is null";
-        return false;
-    }
-    *hidl_response = {};
-
-    hidl_response->maxConcurrentClusters =
-        legacy_response.max_concurrent_nan_clusters;
-    hidl_response->maxPublishes = legacy_response.max_publishes;
-    hidl_response->maxSubscribes = legacy_response.max_subscribes;
-    hidl_response->maxServiceNameLen = legacy_response.max_service_name_len;
-    hidl_response->maxMatchFilterLen = legacy_response.max_match_filter_len;
-    hidl_response->maxTotalMatchFilterLen =
-        legacy_response.max_total_match_filter_len;
-    hidl_response->maxServiceSpecificInfoLen =
-        legacy_response.max_service_specific_info_len;
-    hidl_response->maxExtendedServiceSpecificInfoLen =
-        legacy_response.max_sdea_service_specific_info_len;
-    hidl_response->maxNdiInterfaces = legacy_response.max_ndi_interfaces;
-    hidl_response->maxNdpSessions = legacy_response.max_ndp_sessions;
-    hidl_response->maxAppInfoLen = legacy_response.max_app_info_len;
-    hidl_response->maxQueuedTransmitFollowupMsgs =
-        legacy_response.max_queued_transmit_followup_msgs;
-    hidl_response->maxSubscribeInterfaceAddresses =
-        legacy_response.max_subscribe_address;
-    hidl_response->supportedCipherSuites =
-        legacy_response.cipher_suites_supported;
-
-    return true;
-}
-
-bool convertLegacyNanMatchIndToHidl(const legacy_hal::NanMatchInd& legacy_ind,
-                                    NanMatchInd* hidl_ind) {
-    if (!hidl_ind) {
-        LOG(ERROR) << "convertLegacyNanMatchIndToHidl: hidl_ind is null";
-        return false;
-    }
-    *hidl_ind = {};
-
-    hidl_ind->discoverySessionId = legacy_ind.publish_subscribe_id;
-    hidl_ind->peerId = legacy_ind.requestor_instance_id;
-    hidl_ind->addr = hidl_array<uint8_t, 6>(legacy_ind.addr);
-    hidl_ind->serviceSpecificInfo =
-        std::vector<uint8_t>(legacy_ind.service_specific_info,
-                             legacy_ind.service_specific_info +
-                                 legacy_ind.service_specific_info_len);
-    hidl_ind->extendedServiceSpecificInfo =
-        std::vector<uint8_t>(legacy_ind.sdea_service_specific_info,
-                             legacy_ind.sdea_service_specific_info +
-                                 legacy_ind.sdea_service_specific_info_len);
-    hidl_ind->matchFilter = std::vector<uint8_t>(
-        legacy_ind.sdf_match_filter,
-        legacy_ind.sdf_match_filter + legacy_ind.sdf_match_filter_len);
-    hidl_ind->matchOccuredInBeaconFlag = legacy_ind.match_occured_flag == 1;
-    hidl_ind->outOfResourceFlag = legacy_ind.out_of_resource_flag == 1;
-    hidl_ind->rssiValue = legacy_ind.rssi_value;
-    hidl_ind->peerCipherType = (NanCipherSuiteType)legacy_ind.peer_cipher_type;
-    hidl_ind->peerRequiresSecurityEnabledInNdp =
-        legacy_ind.peer_sdea_params.security_cfg ==
-        legacy_hal::NAN_DP_CONFIG_SECURITY;
-    hidl_ind->peerRequiresRanging = legacy_ind.peer_sdea_params.ranging_state ==
-                                    legacy_hal::NAN_RANGING_ENABLE;
-    hidl_ind->rangingMeasurementInCm =
-        legacy_ind.range_info.range_measurement_mm / 10;
-    hidl_ind->rangingIndicationType = legacy_ind.range_info.ranging_event_type;
-
-    return true;
-}
-
-bool convertLegacyNanFollowupIndToHidl(
-    const legacy_hal::NanFollowupInd& legacy_ind,
-    NanFollowupReceivedInd* hidl_ind) {
-    if (!hidl_ind) {
-        LOG(ERROR) << "convertLegacyNanFollowupIndToHidl: hidl_ind is null";
-        return false;
-    }
-    *hidl_ind = {};
-
-    hidl_ind->discoverySessionId = legacy_ind.publish_subscribe_id;
-    hidl_ind->peerId = legacy_ind.requestor_instance_id;
-    hidl_ind->addr = hidl_array<uint8_t, 6>(legacy_ind.addr);
-    hidl_ind->receivedInFaw = legacy_ind.dw_or_faw == 1;
-    hidl_ind->serviceSpecificInfo =
-        std::vector<uint8_t>(legacy_ind.service_specific_info,
-                             legacy_ind.service_specific_info +
-                                 legacy_ind.service_specific_info_len);
-    hidl_ind->extendedServiceSpecificInfo =
-        std::vector<uint8_t>(legacy_ind.sdea_service_specific_info,
-                             legacy_ind.sdea_service_specific_info +
-                                 legacy_ind.sdea_service_specific_info_len);
-
-    return true;
-}
-
-bool convertLegacyNanDataPathRequestIndToHidl(
-    const legacy_hal::NanDataPathRequestInd& legacy_ind,
-    NanDataPathRequestInd* hidl_ind) {
-    if (!hidl_ind) {
-        LOG(ERROR)
-            << "convertLegacyNanDataPathRequestIndToHidl: hidl_ind is null";
-        return false;
-    }
-    *hidl_ind = {};
-
-    hidl_ind->discoverySessionId = legacy_ind.service_instance_id;
-    hidl_ind->peerDiscMacAddr =
-        hidl_array<uint8_t, 6>(legacy_ind.peer_disc_mac_addr);
-    hidl_ind->ndpInstanceId = legacy_ind.ndp_instance_id;
-    hidl_ind->securityRequired =
-        legacy_ind.ndp_cfg.security_cfg == legacy_hal::NAN_DP_CONFIG_SECURITY;
-    hidl_ind->appInfo =
-        std::vector<uint8_t>(legacy_ind.app_info.ndp_app_info,
-                             legacy_ind.app_info.ndp_app_info +
-                                 legacy_ind.app_info.ndp_app_info_len);
-
-    return true;
-}
-
-bool convertLegacyNdpChannelInfoToHidl(
-    const legacy_hal::NanChannelInfo& legacy_struct,
-    NanDataPathChannelInfo* hidl_struct) {
-    if (!hidl_struct) {
-        LOG(ERROR) << "convertLegacyNdpChannelInfoToHidl: hidl_struct is null";
-        return false;
-    }
-    *hidl_struct = {};
-
-    hidl_struct->channelFreq = legacy_struct.channel;
-    hidl_struct->channelBandwidth = convertLegacyWifiChannelWidthToHidl(
-        (legacy_hal::wifi_channel_width)legacy_struct.bandwidth);
-    hidl_struct->numSpatialStreams = legacy_struct.nss;
-
-    return true;
-}
-
-bool convertLegacyNanDataPathConfirmIndToHidl(
-    const legacy_hal::NanDataPathConfirmInd& legacy_ind,
-    NanDataPathConfirmInd* hidl_ind) {
-    if (!hidl_ind) {
-        LOG(ERROR)
-            << "convertLegacyNanDataPathConfirmIndToHidl: hidl_ind is null";
-        return false;
-    }
-    *hidl_ind = {};
-
-    hidl_ind->V1_0.ndpInstanceId = legacy_ind.ndp_instance_id;
-    hidl_ind->V1_0.dataPathSetupSuccess =
-        legacy_ind.rsp_code == legacy_hal::NAN_DP_REQUEST_ACCEPT;
-    hidl_ind->V1_0.peerNdiMacAddr =
-        hidl_array<uint8_t, 6>(legacy_ind.peer_ndi_mac_addr);
-    hidl_ind->V1_0.appInfo =
-        std::vector<uint8_t>(legacy_ind.app_info.ndp_app_info,
-                             legacy_ind.app_info.ndp_app_info +
-                                 legacy_ind.app_info.ndp_app_info_len);
-    hidl_ind->V1_0.status.status =
-        convertLegacyNanStatusTypeToHidl(legacy_ind.reason_code);
-    hidl_ind->V1_0.status.description = "";  // TODO: b/34059183
-
-    std::vector<NanDataPathChannelInfo> channelInfo;
-    for (unsigned int i = 0; i < legacy_ind.num_channels; ++i) {
-        NanDataPathChannelInfo hidl_struct;
-        if (!convertLegacyNdpChannelInfoToHidl(legacy_ind.channel_info[i],
-                                               &hidl_struct)) {
-            return false;
-        }
-        channelInfo.push_back(hidl_struct);
-    }
-    hidl_ind->channelInfo = channelInfo;
-
-    return true;
-}
-
-bool convertLegacyNanDataPathScheduleUpdateIndToHidl(
-    const legacy_hal::NanDataPathScheduleUpdateInd& legacy_ind,
-    NanDataPathScheduleUpdateInd* hidl_ind) {
-    if (!hidl_ind) {
-        LOG(ERROR) << "convertLegacyNanDataPathScheduleUpdateIndToHidl: "
-                      "hidl_ind is null";
-        return false;
-    }
-    *hidl_ind = {};
-
-    hidl_ind->peerDiscoveryAddress =
-        hidl_array<uint8_t, 6>(legacy_ind.peer_mac_addr);
-    std::vector<NanDataPathChannelInfo> channelInfo;
-    for (unsigned int i = 0; i < legacy_ind.num_channels; ++i) {
-        NanDataPathChannelInfo hidl_struct;
-        if (!convertLegacyNdpChannelInfoToHidl(legacy_ind.channel_info[i],
-                                               &hidl_struct)) {
-            return false;
-        }
-        channelInfo.push_back(hidl_struct);
-    }
-    hidl_ind->channelInfo = channelInfo;
-    std::vector<uint32_t> ndpInstanceIds;
-    for (unsigned int i = 0; i < legacy_ind.num_ndp_instances; ++i) {
-        ndpInstanceIds.push_back(legacy_ind.ndp_instance_id[i]);
-    }
-    hidl_ind->ndpInstanceIds = ndpInstanceIds;
-
-    return true;
-}
-
-legacy_hal::wifi_rtt_type convertHidlRttTypeToLegacy(RttType type) {
-    switch (type) {
-        case RttType::ONE_SIDED:
-            return legacy_hal::RTT_TYPE_1_SIDED;
-        case RttType::TWO_SIDED:
-            return legacy_hal::RTT_TYPE_2_SIDED;
-    };
-    CHECK(false);
-}
-
-RttType convertLegacyRttTypeToHidl(legacy_hal::wifi_rtt_type type) {
-    switch (type) {
-        case legacy_hal::RTT_TYPE_1_SIDED:
-            return RttType::ONE_SIDED;
-        case legacy_hal::RTT_TYPE_2_SIDED:
-            return RttType::TWO_SIDED;
-    };
-    CHECK(false) << "Unknown legacy type: " << type;
-}
-
-legacy_hal::rtt_peer_type convertHidlRttPeerTypeToLegacy(RttPeerType type) {
-    switch (type) {
-        case RttPeerType::AP:
-            return legacy_hal::RTT_PEER_AP;
-        case RttPeerType::STA:
-            return legacy_hal::RTT_PEER_STA;
-        case RttPeerType::P2P_GO:
-            return legacy_hal::RTT_PEER_P2P_GO;
-        case RttPeerType::P2P_CLIENT:
-            return legacy_hal::RTT_PEER_P2P_CLIENT;
-        case RttPeerType::NAN:
-            return legacy_hal::RTT_PEER_NAN;
-    };
-    CHECK(false);
-}
-
-legacy_hal::wifi_channel_width convertHidlWifiChannelWidthToLegacy(
-    WifiChannelWidthInMhz type) {
-    switch (type) {
-        case WifiChannelWidthInMhz::WIDTH_20:
-            return legacy_hal::WIFI_CHAN_WIDTH_20;
-        case WifiChannelWidthInMhz::WIDTH_40:
-            return legacy_hal::WIFI_CHAN_WIDTH_40;
-        case WifiChannelWidthInMhz::WIDTH_80:
-            return legacy_hal::WIFI_CHAN_WIDTH_80;
-        case WifiChannelWidthInMhz::WIDTH_160:
-            return legacy_hal::WIFI_CHAN_WIDTH_160;
-        case WifiChannelWidthInMhz::WIDTH_80P80:
-            return legacy_hal::WIFI_CHAN_WIDTH_80P80;
-        case WifiChannelWidthInMhz::WIDTH_5:
-            return legacy_hal::WIFI_CHAN_WIDTH_5;
-        case WifiChannelWidthInMhz::WIDTH_10:
-            return legacy_hal::WIFI_CHAN_WIDTH_10;
-        case WifiChannelWidthInMhz::WIDTH_INVALID:
-            return legacy_hal::WIFI_CHAN_WIDTH_INVALID;
-    };
-    CHECK(false);
-}
-
-WifiChannelWidthInMhz convertLegacyWifiChannelWidthToHidl(
-    legacy_hal::wifi_channel_width type) {
-    switch (type) {
-        case legacy_hal::WIFI_CHAN_WIDTH_20:
-            return WifiChannelWidthInMhz::WIDTH_20;
-        case legacy_hal::WIFI_CHAN_WIDTH_40:
-            return WifiChannelWidthInMhz::WIDTH_40;
-        case legacy_hal::WIFI_CHAN_WIDTH_80:
-            return WifiChannelWidthInMhz::WIDTH_80;
-        case legacy_hal::WIFI_CHAN_WIDTH_160:
-            return WifiChannelWidthInMhz::WIDTH_160;
-        case legacy_hal::WIFI_CHAN_WIDTH_80P80:
-            return WifiChannelWidthInMhz::WIDTH_80P80;
-        case legacy_hal::WIFI_CHAN_WIDTH_5:
-            return WifiChannelWidthInMhz::WIDTH_5;
-        case legacy_hal::WIFI_CHAN_WIDTH_10:
-            return WifiChannelWidthInMhz::WIDTH_10;
-        case legacy_hal::WIFI_CHAN_WIDTH_INVALID:
-            return WifiChannelWidthInMhz::WIDTH_INVALID;
-    };
-    CHECK(false) << "Unknown legacy type: " << type;
-}
-
-legacy_hal::wifi_rtt_preamble convertHidlRttPreambleToLegacy(RttPreamble type) {
-    switch (type) {
-        case RttPreamble::LEGACY:
-            return legacy_hal::WIFI_RTT_PREAMBLE_LEGACY;
-        case RttPreamble::HT:
-            return legacy_hal::WIFI_RTT_PREAMBLE_HT;
-        case RttPreamble::VHT:
-            return legacy_hal::WIFI_RTT_PREAMBLE_VHT;
-    };
-    CHECK(false);
-}
-
-RttPreamble convertLegacyRttPreambleToHidl(legacy_hal::wifi_rtt_preamble type) {
-    switch (type) {
-        case legacy_hal::WIFI_RTT_PREAMBLE_LEGACY:
-            return RttPreamble::LEGACY;
-        case legacy_hal::WIFI_RTT_PREAMBLE_HT:
-            return RttPreamble::HT;
-        case legacy_hal::WIFI_RTT_PREAMBLE_VHT:
-            return RttPreamble::VHT;
-    };
-    CHECK(false) << "Unknown legacy type: " << type;
-}
-
-legacy_hal::wifi_rtt_bw convertHidlRttBwToLegacy(RttBw type) {
-    switch (type) {
-        case RttBw::BW_5MHZ:
-            return legacy_hal::WIFI_RTT_BW_5;
-        case RttBw::BW_10MHZ:
-            return legacy_hal::WIFI_RTT_BW_10;
-        case RttBw::BW_20MHZ:
-            return legacy_hal::WIFI_RTT_BW_20;
-        case RttBw::BW_40MHZ:
-            return legacy_hal::WIFI_RTT_BW_40;
-        case RttBw::BW_80MHZ:
-            return legacy_hal::WIFI_RTT_BW_80;
-        case RttBw::BW_160MHZ:
-            return legacy_hal::WIFI_RTT_BW_160;
-    };
-    CHECK(false);
-}
-
-RttBw convertLegacyRttBwToHidl(legacy_hal::wifi_rtt_bw type) {
-    switch (type) {
-        case legacy_hal::WIFI_RTT_BW_5:
-            return RttBw::BW_5MHZ;
-        case legacy_hal::WIFI_RTT_BW_10:
-            return RttBw::BW_10MHZ;
-        case legacy_hal::WIFI_RTT_BW_20:
-            return RttBw::BW_20MHZ;
-        case legacy_hal::WIFI_RTT_BW_40:
-            return RttBw::BW_40MHZ;
-        case legacy_hal::WIFI_RTT_BW_80:
-            return RttBw::BW_80MHZ;
-        case legacy_hal::WIFI_RTT_BW_160:
-            return RttBw::BW_160MHZ;
-    };
-    CHECK(false) << "Unknown legacy type: " << type;
-}
-
-legacy_hal::wifi_motion_pattern convertHidlRttMotionPatternToLegacy(
-    RttMotionPattern type) {
-    switch (type) {
-        case RttMotionPattern::NOT_EXPECTED:
-            return legacy_hal::WIFI_MOTION_NOT_EXPECTED;
-        case RttMotionPattern::EXPECTED:
-            return legacy_hal::WIFI_MOTION_EXPECTED;
-        case RttMotionPattern::UNKNOWN:
-            return legacy_hal::WIFI_MOTION_UNKNOWN;
-    };
-    CHECK(false);
-}
-
-WifiRatePreamble convertLegacyWifiRatePreambleToHidl(uint8_t preamble) {
-    switch (preamble) {
-        case 0:
-            return WifiRatePreamble::OFDM;
-        case 1:
-            return WifiRatePreamble::CCK;
-        case 2:
-            return WifiRatePreamble::HT;
-        case 3:
-            return WifiRatePreamble::VHT;
-        default:
-            return WifiRatePreamble::RESERVED;
-    };
-    CHECK(false) << "Unknown legacy preamble: " << preamble;
-}
-
-WifiRateNss convertLegacyWifiRateNssToHidl(uint8_t nss) {
-    switch (nss) {
-        case 0:
-            return WifiRateNss::NSS_1x1;
-        case 1:
-            return WifiRateNss::NSS_2x2;
-        case 2:
-            return WifiRateNss::NSS_3x3;
-        case 3:
-            return WifiRateNss::NSS_4x4;
-    };
-    CHECK(false) << "Unknown legacy nss: " << nss;
-    return {};
-}
-
-RttStatus convertLegacyRttStatusToHidl(legacy_hal::wifi_rtt_status status) {
-    switch (status) {
-        case legacy_hal::RTT_STATUS_SUCCESS:
-            return RttStatus::SUCCESS;
-        case legacy_hal::RTT_STATUS_FAILURE:
-            return RttStatus::FAILURE;
-        case legacy_hal::RTT_STATUS_FAIL_NO_RSP:
-            return RttStatus::FAIL_NO_RSP;
-        case legacy_hal::RTT_STATUS_FAIL_REJECTED:
-            return RttStatus::FAIL_REJECTED;
-        case legacy_hal::RTT_STATUS_FAIL_NOT_SCHEDULED_YET:
-            return RttStatus::FAIL_NOT_SCHEDULED_YET;
-        case legacy_hal::RTT_STATUS_FAIL_TM_TIMEOUT:
-            return RttStatus::FAIL_TM_TIMEOUT;
-        case legacy_hal::RTT_STATUS_FAIL_AP_ON_DIFF_CHANNEL:
-            return RttStatus::FAIL_AP_ON_DIFF_CHANNEL;
-        case legacy_hal::RTT_STATUS_FAIL_NO_CAPABILITY:
-            return RttStatus::FAIL_NO_CAPABILITY;
-        case legacy_hal::RTT_STATUS_ABORTED:
-            return RttStatus::ABORTED;
-        case legacy_hal::RTT_STATUS_FAIL_INVALID_TS:
-            return RttStatus::FAIL_INVALID_TS;
-        case legacy_hal::RTT_STATUS_FAIL_PROTOCOL:
-            return RttStatus::FAIL_PROTOCOL;
-        case legacy_hal::RTT_STATUS_FAIL_SCHEDULE:
-            return RttStatus::FAIL_SCHEDULE;
-        case legacy_hal::RTT_STATUS_FAIL_BUSY_TRY_LATER:
-            return RttStatus::FAIL_BUSY_TRY_LATER;
-        case legacy_hal::RTT_STATUS_INVALID_REQ:
-            return RttStatus::INVALID_REQ;
-        case legacy_hal::RTT_STATUS_NO_WIFI:
-            return RttStatus::NO_WIFI;
-        case legacy_hal::RTT_STATUS_FAIL_FTM_PARAM_OVERRIDE:
-            return RttStatus::FAIL_FTM_PARAM_OVERRIDE;
-        case legacy_hal::RTT_STATUS_NAN_RANGING_PROTOCOL_FAILURE:
-            return RttStatus::FAILURE;  // TODO: add HIDL enumeration
-        case legacy_hal::RTT_STATUS_NAN_RANGING_CONCURRENCY_NOT_SUPPORTED:
-            return RttStatus::FAILURE;  // TODO: add HIDL enumeration
-    };
-    CHECK(false) << "Unknown legacy status: " << status;
-}
-
-bool convertHidlWifiChannelInfoToLegacy(
-    const WifiChannelInfo& hidl_info,
-    legacy_hal::wifi_channel_info* legacy_info) {
-    if (!legacy_info) {
-        return false;
-    }
-    *legacy_info = {};
-    legacy_info->width = convertHidlWifiChannelWidthToLegacy(hidl_info.width);
-    legacy_info->center_freq = hidl_info.centerFreq;
-    legacy_info->center_freq0 = hidl_info.centerFreq0;
-    legacy_info->center_freq1 = hidl_info.centerFreq1;
-    return true;
-}
-
-bool convertLegacyWifiChannelInfoToHidl(
-    const legacy_hal::wifi_channel_info& legacy_info,
-    WifiChannelInfo* hidl_info) {
-    if (!hidl_info) {
-        return false;
-    }
-    *hidl_info = {};
-    hidl_info->width = convertLegacyWifiChannelWidthToHidl(legacy_info.width);
-    hidl_info->centerFreq = legacy_info.center_freq;
-    hidl_info->centerFreq0 = legacy_info.center_freq0;
-    hidl_info->centerFreq1 = legacy_info.center_freq1;
-    return true;
-}
-
-bool convertHidlRttConfigToLegacy(const RttConfig& hidl_config,
-                                  legacy_hal::wifi_rtt_config* legacy_config) {
-    if (!legacy_config) {
-        return false;
-    }
-    *legacy_config = {};
-    CHECK(hidl_config.addr.size() == sizeof(legacy_config->addr));
-    memcpy(legacy_config->addr, hidl_config.addr.data(),
-           hidl_config.addr.size());
-    legacy_config->type = convertHidlRttTypeToLegacy(hidl_config.type);
-    legacy_config->peer = convertHidlRttPeerTypeToLegacy(hidl_config.peer);
-    if (!convertHidlWifiChannelInfoToLegacy(hidl_config.channel,
-                                            &legacy_config->channel)) {
-        return false;
-    }
-    legacy_config->burst_period = hidl_config.burstPeriod;
-    legacy_config->num_burst = hidl_config.numBurst;
-    legacy_config->num_frames_per_burst = hidl_config.numFramesPerBurst;
-    legacy_config->num_retries_per_rtt_frame =
-        hidl_config.numRetriesPerRttFrame;
-    legacy_config->num_retries_per_ftmr = hidl_config.numRetriesPerFtmr;
-    legacy_config->LCI_request = hidl_config.mustRequestLci;
-    legacy_config->LCR_request = hidl_config.mustRequestLcr;
-    legacy_config->burst_duration = hidl_config.burstDuration;
-    legacy_config->preamble =
-        convertHidlRttPreambleToLegacy(hidl_config.preamble);
-    legacy_config->bw = convertHidlRttBwToLegacy(hidl_config.bw);
-    return true;
-}
-
-bool convertHidlVectorOfRttConfigToLegacy(
-    const std::vector<RttConfig>& hidl_configs,
-    std::vector<legacy_hal::wifi_rtt_config>* legacy_configs) {
-    if (!legacy_configs) {
-        return false;
-    }
-    *legacy_configs = {};
-    for (const auto& hidl_config : hidl_configs) {
-        legacy_hal::wifi_rtt_config legacy_config;
-        if (!convertHidlRttConfigToLegacy(hidl_config, &legacy_config)) {
-            return false;
-        }
-        legacy_configs->push_back(legacy_config);
-    }
-    return true;
-}
-
-bool convertHidlRttLciInformationToLegacy(
-    const RttLciInformation& hidl_info,
-    legacy_hal::wifi_lci_information* legacy_info) {
-    if (!legacy_info) {
-        return false;
-    }
-    *legacy_info = {};
-    legacy_info->latitude = hidl_info.latitude;
-    legacy_info->longitude = hidl_info.longitude;
-    legacy_info->altitude = hidl_info.altitude;
-    legacy_info->latitude_unc = hidl_info.latitudeUnc;
-    legacy_info->longitude_unc = hidl_info.longitudeUnc;
-    legacy_info->altitude_unc = hidl_info.altitudeUnc;
-    legacy_info->motion_pattern =
-        convertHidlRttMotionPatternToLegacy(hidl_info.motionPattern);
-    legacy_info->floor = hidl_info.floor;
-    legacy_info->height_above_floor = hidl_info.heightAboveFloor;
-    legacy_info->height_unc = hidl_info.heightUnc;
-    return true;
-}
-
-bool convertHidlRttLcrInformationToLegacy(
-    const RttLcrInformation& hidl_info,
-    legacy_hal::wifi_lcr_information* legacy_info) {
-    if (!legacy_info) {
-        return false;
-    }
-    *legacy_info = {};
-    CHECK(hidl_info.countryCode.size() == sizeof(legacy_info->country_code));
-    memcpy(legacy_info->country_code, hidl_info.countryCode.data(),
-           hidl_info.countryCode.size());
-    if (hidl_info.civicInfo.size() > sizeof(legacy_info->civic_info)) {
-        return false;
-    }
-    legacy_info->length = hidl_info.civicInfo.size();
-    memcpy(legacy_info->civic_info, hidl_info.civicInfo.c_str(),
-           hidl_info.civicInfo.size());
-    return true;
-}
-
-bool convertHidlRttResponderToLegacy(
-    const RttResponder& hidl_responder,
-    legacy_hal::wifi_rtt_responder* legacy_responder) {
-    if (!legacy_responder) {
-        return false;
-    }
-    *legacy_responder = {};
-    if (!convertHidlWifiChannelInfoToLegacy(hidl_responder.channel,
-                                            &legacy_responder->channel)) {
-        return false;
-    }
-    legacy_responder->preamble =
-        convertHidlRttPreambleToLegacy(hidl_responder.preamble);
-    return true;
-}
-
-bool convertLegacyRttResponderToHidl(
-    const legacy_hal::wifi_rtt_responder& legacy_responder,
-    RttResponder* hidl_responder) {
-    if (!hidl_responder) {
-        return false;
-    }
-    *hidl_responder = {};
-    if (!convertLegacyWifiChannelInfoToHidl(legacy_responder.channel,
-                                            &hidl_responder->channel)) {
-        return false;
-    }
-    hidl_responder->preamble =
-        convertLegacyRttPreambleToHidl(legacy_responder.preamble);
-    return true;
-}
-
-bool convertLegacyRttCapabilitiesToHidl(
-    const legacy_hal::wifi_rtt_capabilities& legacy_capabilities,
-    RttCapabilities* hidl_capabilities) {
-    if (!hidl_capabilities) {
-        return false;
-    }
-    *hidl_capabilities = {};
-    hidl_capabilities->rttOneSidedSupported =
-        legacy_capabilities.rtt_one_sided_supported;
-    hidl_capabilities->rttFtmSupported = legacy_capabilities.rtt_ftm_supported;
-    hidl_capabilities->lciSupported = legacy_capabilities.lci_support;
-    hidl_capabilities->lcrSupported = legacy_capabilities.lcr_support;
-    hidl_capabilities->responderSupported =
-        legacy_capabilities.responder_supported;
-    hidl_capabilities->preambleSupport = 0;
-    for (const auto flag : {legacy_hal::WIFI_RTT_PREAMBLE_LEGACY,
-                            legacy_hal::WIFI_RTT_PREAMBLE_HT,
-                            legacy_hal::WIFI_RTT_PREAMBLE_VHT}) {
-        if (legacy_capabilities.preamble_support & flag) {
-            hidl_capabilities->preambleSupport |=
-                static_cast<std::underlying_type<RttPreamble>::type>(
-                    convertLegacyRttPreambleToHidl(flag));
-        }
-    }
-    hidl_capabilities->bwSupport = 0;
-    for (const auto flag :
-         {legacy_hal::WIFI_RTT_BW_5, legacy_hal::WIFI_RTT_BW_10,
-          legacy_hal::WIFI_RTT_BW_20, legacy_hal::WIFI_RTT_BW_40,
-          legacy_hal::WIFI_RTT_BW_80, legacy_hal::WIFI_RTT_BW_160}) {
-        if (legacy_capabilities.bw_support & flag) {
-            hidl_capabilities->bwSupport |=
-                static_cast<std::underlying_type<RttBw>::type>(
-                    convertLegacyRttBwToHidl(flag));
-        }
-    }
-    hidl_capabilities->mcVersion = legacy_capabilities.mc_version;
-    return true;
-}
-
-bool convertLegacyWifiRateInfoToHidl(const legacy_hal::wifi_rate& legacy_rate,
-                                     WifiRateInfo* hidl_rate) {
-    if (!hidl_rate) {
-        return false;
-    }
-    *hidl_rate = {};
-    hidl_rate->preamble =
-        convertLegacyWifiRatePreambleToHidl(legacy_rate.preamble);
-    hidl_rate->nss = convertLegacyWifiRateNssToHidl(legacy_rate.nss);
-    hidl_rate->bw = convertLegacyWifiChannelWidthToHidl(
-        static_cast<legacy_hal::wifi_channel_width>(legacy_rate.bw));
-    hidl_rate->rateMcsIdx = legacy_rate.rateMcsIdx;
-    hidl_rate->bitRateInKbps = legacy_rate.bitrate;
-    return true;
-}
-
-bool convertLegacyRttResultToHidl(
-    const legacy_hal::wifi_rtt_result& legacy_result, RttResult* hidl_result) {
-    if (!hidl_result) {
-        return false;
-    }
-    *hidl_result = {};
-    CHECK(sizeof(legacy_result.addr) == hidl_result->addr.size());
-    memcpy(hidl_result->addr.data(), legacy_result.addr,
-           sizeof(legacy_result.addr));
-    hidl_result->burstNum = legacy_result.burst_num;
-    hidl_result->measurementNumber = legacy_result.measurement_number;
-    hidl_result->successNumber = legacy_result.success_number;
-    hidl_result->numberPerBurstPeer = legacy_result.number_per_burst_peer;
-    hidl_result->status = convertLegacyRttStatusToHidl(legacy_result.status);
-    hidl_result->retryAfterDuration = legacy_result.retry_after_duration;
-    hidl_result->type = convertLegacyRttTypeToHidl(legacy_result.type);
-    hidl_result->rssi = legacy_result.rssi;
-    hidl_result->rssiSpread = legacy_result.rssi_spread;
-    if (!convertLegacyWifiRateInfoToHidl(legacy_result.tx_rate,
-                                         &hidl_result->txRate)) {
-        return false;
-    }
-    if (!convertLegacyWifiRateInfoToHidl(legacy_result.rx_rate,
-                                         &hidl_result->rxRate)) {
-        return false;
-    }
-    hidl_result->rtt = legacy_result.rtt;
-    hidl_result->rttSd = legacy_result.rtt_sd;
-    hidl_result->rttSpread = legacy_result.rtt_spread;
-    hidl_result->distanceInMm = legacy_result.distance_mm;
-    hidl_result->distanceSdInMm = legacy_result.distance_sd_mm;
-    hidl_result->distanceSpreadInMm = legacy_result.distance_spread_mm;
-    hidl_result->timeStampInUs = legacy_result.ts;
-    hidl_result->burstDurationInMs = legacy_result.burst_duration;
-    hidl_result->negotiatedBurstNum = legacy_result.negotiated_burst_num;
-    if (legacy_result.LCI &&
-        !convertLegacyIeToHidl(*legacy_result.LCI, &hidl_result->lci)) {
-        return false;
-    }
-    if (legacy_result.LCR &&
-        !convertLegacyIeToHidl(*legacy_result.LCR, &hidl_result->lcr)) {
-        return false;
-    }
-    return true;
-}
-
-bool convertLegacyVectorOfRttResultToHidl(
-    const std::vector<const legacy_hal::wifi_rtt_result*>& legacy_results,
-    std::vector<RttResult>* hidl_results) {
-    if (!hidl_results) {
-        return false;
-    }
-    *hidl_results = {};
-    for (const auto legacy_result : legacy_results) {
-        RttResult hidl_result;
-        if (!convertLegacyRttResultToHidl(*legacy_result, &hidl_result)) {
-            return false;
-        }
-        hidl_results->push_back(hidl_result);
-    }
-    return true;
-}
-}  // namespace hidl_struct_util
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/hidl_struct_util.h b/wifi/1.2/default/hidl_struct_util.h
deleted file mode 100644
index 3c789c0..0000000
--- a/wifi/1.2/default/hidl_struct_util.h
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef HIDL_STRUCT_UTIL_H_
-#define HIDL_STRUCT_UTIL_H_
-
-#include <vector>
-
-#include <android/hardware/wifi/1.0/IWifiChip.h>
-#include <android/hardware/wifi/1.0/types.h>
-#include <android/hardware/wifi/1.2/IWifiChip.h>
-#include <android/hardware/wifi/1.2/IWifiChipEventCallback.h>
-#include <android/hardware/wifi/1.2/types.h>
-
-#include "wifi_legacy_hal.h"
-
-/**
- * This file contains a bunch of functions to convert structs from the legacy
- * HAL to HIDL and vice versa.
- * TODO(b/32093047): Add unit tests for these conversion methods in the VTS test
- * suite.
- */
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace hidl_struct_util {
-using namespace android::hardware::wifi::V1_0;
-
-// Chip conversion methods.
-bool convertLegacyFeaturesToHidlChipCapabilities(
-    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
-    uint32_t* hidl_caps);
-bool convertLegacyDebugRingBufferStatusToHidl(
-    const legacy_hal::wifi_ring_buffer_status& legacy_status,
-    WifiDebugRingBufferStatus* hidl_status);
-bool convertLegacyVectorOfDebugRingBufferStatusToHidl(
-    const std::vector<legacy_hal::wifi_ring_buffer_status>& legacy_status_vec,
-    std::vector<WifiDebugRingBufferStatus>* hidl_status_vec);
-bool convertLegacyWakeReasonStatsToHidl(
-    const legacy_hal::WakeReasonStats& legacy_stats,
-    WifiDebugHostWakeReasonStats* hidl_stats);
-legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy(
-    V1_1::IWifiChip::TxPowerScenario hidl_scenario);
-legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy_1_2(
-    IWifiChip::TxPowerScenario hidl_scenario);
-bool convertLegacyWifiMacInfosToHidl(
-    const std::vector<legacy_hal::WifiMacInfo>& legacy_mac_infos,
-    std::vector<IWifiChipEventCallback::RadioModeInfo>* hidl_radio_mode_infos);
-
-// STA iface conversion methods.
-bool convertLegacyFeaturesToHidlStaCapabilities(
-    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
-    uint32_t* hidl_caps);
-bool convertLegacyApfCapabilitiesToHidl(
-    const legacy_hal::PacketFilterCapabilities& legacy_caps,
-    StaApfPacketFilterCapabilities* hidl_caps);
-bool convertLegacyGscanCapabilitiesToHidl(
-    const legacy_hal::wifi_gscan_capabilities& legacy_caps,
-    StaBackgroundScanCapabilities* hidl_caps);
-legacy_hal::wifi_band convertHidlWifiBandToLegacy(WifiBand band);
-bool convertHidlGscanParamsToLegacy(
-    const StaBackgroundScanParameters& hidl_scan_params,
-    legacy_hal::wifi_scan_cmd_params* legacy_scan_params);
-// |has_ie_data| indicates whether or not the wifi_scan_result includes 802.11
-// Information Elements (IEs)
-bool convertLegacyGscanResultToHidl(
-    const legacy_hal::wifi_scan_result& legacy_scan_result, bool has_ie_data,
-    StaScanResult* hidl_scan_result);
-// |cached_results| is assumed to not include IEs.
-bool convertLegacyVectorOfCachedGscanResultsToHidl(
-    const std::vector<legacy_hal::wifi_cached_scan_results>&
-        legacy_cached_scan_results,
-    std::vector<StaScanData>* hidl_scan_datas);
-bool convertLegacyLinkLayerStatsToHidl(
-    const legacy_hal::LinkLayerStats& legacy_stats,
-    StaLinkLayerStats* hidl_stats);
-bool convertLegacyRoamingCapabilitiesToHidl(
-    const legacy_hal::wifi_roaming_capabilities& legacy_caps,
-    StaRoamingCapabilities* hidl_caps);
-bool convertHidlRoamingConfigToLegacy(
-    const StaRoamingConfig& hidl_config,
-    legacy_hal::wifi_roaming_config* legacy_config);
-legacy_hal::fw_roaming_state_t convertHidlRoamingStateToLegacy(
-    StaRoamingState state);
-bool convertLegacyVectorOfDebugTxPacketFateToHidl(
-    const std::vector<legacy_hal::wifi_tx_report>& legacy_fates,
-    std::vector<WifiDebugTxPacketFateReport>* hidl_fates);
-bool convertLegacyVectorOfDebugRxPacketFateToHidl(
-    const std::vector<legacy_hal::wifi_rx_report>& legacy_fates,
-    std::vector<WifiDebugRxPacketFateReport>* hidl_fates);
-
-// NAN iface conversion methods.
-void convertToWifiNanStatus(legacy_hal::NanStatusType type, const char* str,
-                            size_t max_len, WifiNanStatus* wifiNanStatus);
-bool convertHidlNanEnableRequestToLegacy(
-    const NanEnableRequest& hidl_request,
-    legacy_hal::NanEnableRequest* legacy_request);
-bool convertHidlNanConfigRequestToLegacy(
-    const NanConfigRequest& hidl_request,
-    legacy_hal::NanConfigRequest* legacy_request);
-bool convertHidlNanEnableRequest_1_2ToLegacy(
-    const NanEnableRequest& hidl_request1,
-    const NanConfigRequestSupplemental& hidl_request2,
-    legacy_hal::NanEnableRequest* legacy_request);
-bool convertHidlNanConfigRequest_1_2ToLegacy(
-    const NanConfigRequest& hidl_request1,
-    const NanConfigRequestSupplemental& hidl_request2,
-    legacy_hal::NanConfigRequest* legacy_request);
-bool convertHidlNanPublishRequestToLegacy(
-    const NanPublishRequest& hidl_request,
-    legacy_hal::NanPublishRequest* legacy_request);
-bool convertHidlNanSubscribeRequestToLegacy(
-    const NanSubscribeRequest& hidl_request,
-    legacy_hal::NanSubscribeRequest* legacy_request);
-bool convertHidlNanTransmitFollowupRequestToLegacy(
-    const NanTransmitFollowupRequest& hidl_request,
-    legacy_hal::NanTransmitFollowupRequest* legacy_request);
-bool convertHidlNanDataPathInitiatorRequestToLegacy(
-    const NanInitiateDataPathRequest& hidl_request,
-    legacy_hal::NanDataPathInitiatorRequest* legacy_request);
-bool convertHidlNanDataPathIndicationResponseToLegacy(
-    const NanRespondToDataPathIndicationRequest& hidl_response,
-    legacy_hal::NanDataPathIndicationResponse* legacy_response);
-bool convertLegacyNanResponseHeaderToHidl(
-    const legacy_hal::NanResponseMsg& legacy_response,
-    WifiNanStatus* wifiNanStatus);
-bool convertLegacyNanCapabilitiesResponseToHidl(
-    const legacy_hal::NanCapabilities& legacy_response,
-    NanCapabilities* hidl_response);
-bool convertLegacyNanMatchIndToHidl(const legacy_hal::NanMatchInd& legacy_ind,
-                                    NanMatchInd* hidl_ind);
-bool convertLegacyNanFollowupIndToHidl(
-    const legacy_hal::NanFollowupInd& legacy_ind,
-    NanFollowupReceivedInd* hidl_ind);
-bool convertLegacyNanDataPathRequestIndToHidl(
-    const legacy_hal::NanDataPathRequestInd& legacy_ind,
-    NanDataPathRequestInd* hidl_ind);
-bool convertLegacyNanDataPathConfirmIndToHidl(
-    const legacy_hal::NanDataPathConfirmInd& legacy_ind,
-    NanDataPathConfirmInd* hidl_ind);
-bool convertLegacyNanDataPathScheduleUpdateIndToHidl(
-    const legacy_hal::NanDataPathScheduleUpdateInd& legacy_ind,
-    NanDataPathScheduleUpdateInd* hidl_ind);
-
-// RTT controller conversion methods.
-bool convertHidlVectorOfRttConfigToLegacy(
-    const std::vector<RttConfig>& hidl_configs,
-    std::vector<legacy_hal::wifi_rtt_config>* legacy_configs);
-bool convertHidlRttLciInformationToLegacy(
-    const RttLciInformation& hidl_info,
-    legacy_hal::wifi_lci_information* legacy_info);
-bool convertHidlRttLcrInformationToLegacy(
-    const RttLcrInformation& hidl_info,
-    legacy_hal::wifi_lcr_information* legacy_info);
-bool convertHidlRttResponderToLegacy(
-    const RttResponder& hidl_responder,
-    legacy_hal::wifi_rtt_responder* legacy_responder);
-bool convertHidlWifiChannelInfoToLegacy(
-    const WifiChannelInfo& hidl_info,
-    legacy_hal::wifi_channel_info* legacy_info);
-bool convertLegacyRttResponderToHidl(
-    const legacy_hal::wifi_rtt_responder& legacy_responder,
-    RttResponder* hidl_responder);
-bool convertLegacyRttCapabilitiesToHidl(
-    const legacy_hal::wifi_rtt_capabilities& legacy_capabilities,
-    RttCapabilities* hidl_capabilities);
-bool convertLegacyVectorOfRttResultToHidl(
-    const std::vector<const legacy_hal::wifi_rtt_result*>& legacy_results,
-    std::vector<RttResult>* hidl_results);
-}  // namespace hidl_struct_util
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // HIDL_STRUCT_UTIL_H_
diff --git a/wifi/1.2/default/hidl_sync_util.cpp b/wifi/1.2/default/hidl_sync_util.cpp
deleted file mode 100644
index ad8448a..0000000
--- a/wifi/1.2/default/hidl_sync_util.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "hidl_sync_util.h"
-
-namespace {
-std::recursive_mutex g_mutex;
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace hidl_sync_util {
-
-std::unique_lock<std::recursive_mutex> acquireGlobalLock() {
-    return std::unique_lock<std::recursive_mutex>{g_mutex};
-}
-
-}  // namespace hidl_sync_util
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/hidl_sync_util.h b/wifi/1.2/default/hidl_sync_util.h
deleted file mode 100644
index 8381862..0000000
--- a/wifi/1.2/default/hidl_sync_util.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef HIDL_SYNC_UTIL_H_
-#define HIDL_SYNC_UTIL_H_
-
-#include <mutex>
-
-// Utility that provides a global lock to synchronize access between
-// the HIDL thread and the legacy HAL's event loop.
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace hidl_sync_util {
-std::unique_lock<std::recursive_mutex> acquireGlobalLock();
-}  // namespace hidl_sync_util
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-#endif  // HIDL_SYNC_UTIL_H_
diff --git a/wifi/1.2/default/ringbuffer.cpp b/wifi/1.2/default/ringbuffer.cpp
deleted file mode 100644
index c126b36..0000000
--- a/wifi/1.2/default/ringbuffer.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "ringbuffer.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-Ringbuffer::Ringbuffer(size_t maxSize) : size_(0), maxSize_(maxSize) {}
-
-void Ringbuffer::append(const std::vector<uint8_t>& input) {
-    if (input.size() == 0) {
-        return;
-    }
-    if (input.size() > maxSize_) {
-        LOG(INFO) << "Oversized message of " << input.size()
-                  << " bytes is dropped";
-        return;
-    }
-    data_.push_back(input);
-    size_ += input.size() * sizeof(input[0]);
-    while (size_ > maxSize_) {
-        size_ -= data_.front().size() * sizeof(data_.front()[0]);
-        data_.pop_front();
-    }
-}
-
-const std::list<std::vector<uint8_t>>& Ringbuffer::getData() const {
-    return data_;
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/ringbuffer.h b/wifi/1.2/default/ringbuffer.h
deleted file mode 100644
index 4808e40..0000000
--- a/wifi/1.2/default/ringbuffer.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef RINGBUFFER_H_
-#define RINGBUFFER_H_
-
-#include <list>
-#include <vector>
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-/**
- * Ringbuffer object used to store debug data.
- */
-class Ringbuffer {
-   public:
-    explicit Ringbuffer(size_t maxSize);
-
-    // Appends the data buffer and deletes from the front until buffer is
-    // within |maxSize_|.
-    void append(const std::vector<uint8_t>& input);
-    const std::list<std::vector<uint8_t>>& getData() const;
-
-   private:
-    std::list<std::vector<uint8_t>> data_;
-    size_t size_;
-    size_t maxSize_;
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // RINGBUFFER_H_
diff --git a/wifi/1.2/default/service.cpp b/wifi/1.2/default/service.cpp
deleted file mode 100644
index 01d22bd..0000000
--- a/wifi/1.2/default/service.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <hidl/HidlTransportSupport.h>
-#include <utils/Looper.h>
-#include <utils/StrongPointer.h>
-
-#include "wifi.h"
-#include "wifi_feature_flags.h"
-#include "wifi_legacy_hal.h"
-#include "wifi_mode_controller.h"
-
-using android::hardware::configureRpcThreadpool;
-using android::hardware::joinRpcThreadpool;
-using android::hardware::wifi::V1_2::implementation::feature_flags::
-    WifiFeatureFlags;
-using android::hardware::wifi::V1_2::implementation::legacy_hal::WifiLegacyHal;
-using android::hardware::wifi::V1_2::implementation::mode_controller::
-    WifiModeController;
-
-int main(int /*argc*/, char** argv) {
-    android::base::InitLogging(
-        argv, android::base::LogdLogger(android::base::SYSTEM));
-    LOG(INFO) << "Wifi Hal is booting up...";
-
-    configureRpcThreadpool(1, true /* callerWillJoin */);
-
-    // Setup hwbinder service
-    android::sp<android::hardware::wifi::V1_2::IWifi> service =
-        new android::hardware::wifi::V1_2::implementation::Wifi(
-            std::make_shared<WifiLegacyHal>(),
-            std::make_shared<WifiModeController>(),
-            std::make_shared<WifiFeatureFlags>());
-    CHECK_EQ(service->registerAsService(), android::NO_ERROR)
-        << "Failed to register wifi HAL";
-
-    joinRpcThreadpool();
-
-    LOG(INFO) << "Wifi Hal is terminating...";
-    return 0;
-}
diff --git a/wifi/1.2/default/tests/hidl_struct_util_unit_tests.cpp b/wifi/1.2/default/tests/hidl_struct_util_unit_tests.cpp
deleted file mode 100644
index 1d6e9e4..0000000
--- a/wifi/1.2/default/tests/hidl_struct_util_unit_tests.cpp
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Copyright (C) 2017, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <android-base/macros.h>
-#include <gmock/gmock.h>
-
-#undef NAN
-#include "hidl_struct_util.h"
-
-using testing::Test;
-
-namespace {
-constexpr uint32_t kMacId1 = 1;
-constexpr uint32_t kMacId2 = 2;
-constexpr uint32_t kIfaceChannel1 = 3;
-constexpr uint32_t kIfaceChannel2 = 5;
-constexpr char kIfaceName1[] = "wlan0";
-constexpr char kIfaceName2[] = "wlan1";
-}  // namespace
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-class HidlStructUtilTest : public Test {};
-
-TEST_F(HidlStructUtilTest, CanConvertLegacyWifiMacInfosToHidlWithOneMac) {
-    std::vector<legacy_hal::WifiMacInfo> legacy_mac_infos;
-    legacy_hal::WifiMacInfo legacy_mac_info1 = {
-        .wlan_mac_id = kMacId1,
-        .mac_band =
-            legacy_hal::WLAN_MAC_5_0_BAND | legacy_hal::WLAN_MAC_2_4_BAND};
-    legacy_hal::WifiIfaceInfo legacy_iface_info1 = {.name = kIfaceName1,
-                                                    .channel = kIfaceChannel1};
-    legacy_hal::WifiIfaceInfo legacy_iface_info2 = {.name = kIfaceName2,
-                                                    .channel = kIfaceChannel2};
-    legacy_mac_info1.iface_infos.push_back(legacy_iface_info1);
-    legacy_mac_info1.iface_infos.push_back(legacy_iface_info2);
-    legacy_mac_infos.push_back(legacy_mac_info1);
-
-    std::vector<IWifiChipEventCallback::RadioModeInfo> hidl_radio_mode_infos;
-    ASSERT_TRUE(hidl_struct_util::convertLegacyWifiMacInfosToHidl(
-        legacy_mac_infos, &hidl_radio_mode_infos));
-
-    ASSERT_EQ(1u, hidl_radio_mode_infos.size());
-    auto hidl_radio_mode_info1 = hidl_radio_mode_infos[0];
-    EXPECT_EQ(legacy_mac_info1.wlan_mac_id, hidl_radio_mode_info1.radioId);
-    EXPECT_EQ(WifiBand::BAND_24GHZ_5GHZ, hidl_radio_mode_info1.bandInfo);
-    ASSERT_EQ(2u, hidl_radio_mode_info1.ifaceInfos.size());
-    auto hidl_iface_info1 = hidl_radio_mode_info1.ifaceInfos[0];
-    EXPECT_EQ(legacy_iface_info1.name, hidl_iface_info1.name);
-    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info1.channel),
-              hidl_iface_info1.channel);
-    auto hidl_iface_info2 = hidl_radio_mode_info1.ifaceInfos[1];
-    EXPECT_EQ(legacy_iface_info2.name, hidl_iface_info2.name);
-    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info2.channel),
-              hidl_iface_info2.channel);
-}
-
-TEST_F(HidlStructUtilTest, CanConvertLegacyWifiMacInfosToHidlWithTwoMac) {
-    std::vector<legacy_hal::WifiMacInfo> legacy_mac_infos;
-    legacy_hal::WifiMacInfo legacy_mac_info1 = {
-        .wlan_mac_id = kMacId1, .mac_band = legacy_hal::WLAN_MAC_5_0_BAND};
-    legacy_hal::WifiIfaceInfo legacy_iface_info1 = {.name = kIfaceName1,
-                                                    .channel = kIfaceChannel1};
-    legacy_hal::WifiMacInfo legacy_mac_info2 = {
-        .wlan_mac_id = kMacId2, .mac_band = legacy_hal::WLAN_MAC_2_4_BAND};
-    legacy_hal::WifiIfaceInfo legacy_iface_info2 = {.name = kIfaceName2,
-                                                    .channel = kIfaceChannel2};
-    legacy_mac_info1.iface_infos.push_back(legacy_iface_info1);
-    legacy_mac_infos.push_back(legacy_mac_info1);
-    legacy_mac_info2.iface_infos.push_back(legacy_iface_info2);
-    legacy_mac_infos.push_back(legacy_mac_info2);
-
-    std::vector<IWifiChipEventCallback::RadioModeInfo> hidl_radio_mode_infos;
-    ASSERT_TRUE(hidl_struct_util::convertLegacyWifiMacInfosToHidl(
-        legacy_mac_infos, &hidl_radio_mode_infos));
-
-    ASSERT_EQ(2u, hidl_radio_mode_infos.size());
-
-    // Find mac info 1.
-    const auto hidl_radio_mode_info1 = std::find_if(
-        hidl_radio_mode_infos.begin(), hidl_radio_mode_infos.end(),
-        [&legacy_mac_info1](const IWifiChipEventCallback::RadioModeInfo& x) {
-            return x.radioId == legacy_mac_info1.wlan_mac_id;
-        });
-    ASSERT_NE(hidl_radio_mode_infos.end(), hidl_radio_mode_info1);
-    EXPECT_EQ(WifiBand::BAND_5GHZ, hidl_radio_mode_info1->bandInfo);
-    ASSERT_EQ(1u, hidl_radio_mode_info1->ifaceInfos.size());
-    auto hidl_iface_info1 = hidl_radio_mode_info1->ifaceInfos[0];
-    EXPECT_EQ(legacy_iface_info1.name, hidl_iface_info1.name);
-    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info1.channel),
-              hidl_iface_info1.channel);
-
-    // Find mac info 2.
-    const auto hidl_radio_mode_info2 = std::find_if(
-        hidl_radio_mode_infos.begin(), hidl_radio_mode_infos.end(),
-        [&legacy_mac_info2](const IWifiChipEventCallback::RadioModeInfo& x) {
-            return x.radioId == legacy_mac_info2.wlan_mac_id;
-        });
-    ASSERT_NE(hidl_radio_mode_infos.end(), hidl_radio_mode_info2);
-    EXPECT_EQ(WifiBand::BAND_24GHZ, hidl_radio_mode_info2->bandInfo);
-    ASSERT_EQ(1u, hidl_radio_mode_info2->ifaceInfos.size());
-    auto hidl_iface_info2 = hidl_radio_mode_info2->ifaceInfos[0];
-    EXPECT_EQ(legacy_iface_info2.name, hidl_iface_info2.name);
-    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info2.channel),
-              hidl_iface_info2.channel);
-}
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/tests/mock_wifi_feature_flags.cpp b/wifi/1.2/default/tests/mock_wifi_feature_flags.cpp
deleted file mode 100644
index 8d0b192..0000000
--- a/wifi/1.2/default/tests/mock_wifi_feature_flags.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <gmock/gmock.h>
-
-#include "mock_wifi_feature_flags.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace feature_flags {
-
-MockWifiFeatureFlags::MockWifiFeatureFlags() {}
-
-}  // namespace feature_flags
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/tests/mock_wifi_feature_flags.h b/wifi/1.2/default/tests/mock_wifi_feature_flags.h
deleted file mode 100644
index 2a36dd5..0000000
--- a/wifi/1.2/default/tests/mock_wifi_feature_flags.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MOCK_WIFI_FEATURE_FLAGS_H_
-#define MOCK_WIFI_FEATURE_FLAGS_H_
-
-#include <gmock/gmock.h>
-
-#include "wifi_feature_flags.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace feature_flags {
-
-class MockWifiFeatureFlags : public WifiFeatureFlags {
-   public:
-    MockWifiFeatureFlags();
-
-    MOCK_METHOD0(isAwareSupported, bool());
-    MOCK_METHOD0(isDualInterfaceSupported, bool());
-    MOCK_METHOD0(isApDisabled, bool());
-};
-
-}  // namespace feature_flags
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // MOCK_WIFI_FEATURE_FLAGS_H_
diff --git a/wifi/1.2/default/tests/mock_wifi_legacy_hal.cpp b/wifi/1.2/default/tests/mock_wifi_legacy_hal.cpp
deleted file mode 100644
index 8381dde..0000000
--- a/wifi/1.2/default/tests/mock_wifi_legacy_hal.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <android-base/macros.h>
-#include <gmock/gmock.h>
-
-#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
-#include "mock_wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace legacy_hal {
-
-MockWifiLegacyHal::MockWifiLegacyHal() : WifiLegacyHal() {}
-}  // namespace legacy_hal
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/tests/mock_wifi_legacy_hal.h b/wifi/1.2/default/tests/mock_wifi_legacy_hal.h
deleted file mode 100644
index 43370b4..0000000
--- a/wifi/1.2/default/tests/mock_wifi_legacy_hal.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MOCK_WIFI_LEGACY_HAL_H_
-#define MOCK_WIFI_LEGACY_HAL_H_
-
-#include <gmock/gmock.h>
-
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace legacy_hal {
-
-class MockWifiLegacyHal : public WifiLegacyHal {
-   public:
-    MockWifiLegacyHal();
-    MOCK_METHOD0(initialize, wifi_error());
-    MOCK_METHOD0(start, wifi_error());
-    MOCK_METHOD2(stop, wifi_error(std::unique_lock<std::recursive_mutex>*,
-                                  const std::function<void()>&));
-    MOCK_METHOD2(setDfsFlag, wifi_error(const std::string&, bool));
-    MOCK_METHOD2(registerRadioModeChangeCallbackHandler,
-                 wifi_error(const std::string&,
-                            const on_radio_mode_change_callback&));
-    MOCK_METHOD2(nanRegisterCallbackHandlers,
-                 wifi_error(const std::string&, const NanCallbackHandlers&));
-    MOCK_METHOD2(nanDisableRequest,
-                 wifi_error(const std::string&, transaction_id));
-    MOCK_METHOD3(nanDataInterfaceDelete,
-                 wifi_error(const std::string&, transaction_id,
-                            const std::string&));
-};
-}  // namespace legacy_hal
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // MOCK_WIFI_LEGACY_HAL_H_
diff --git a/wifi/1.2/default/tests/mock_wifi_mode_controller.cpp b/wifi/1.2/default/tests/mock_wifi_mode_controller.cpp
deleted file mode 100644
index 461a581..0000000
--- a/wifi/1.2/default/tests/mock_wifi_mode_controller.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <android-base/macros.h>
-#include <gmock/gmock.h>
-
-#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
-#include "mock_wifi_mode_controller.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace mode_controller {
-
-MockWifiModeController::MockWifiModeController() : WifiModeController() {}
-}  // namespace mode_controller
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/tests/mock_wifi_mode_controller.h b/wifi/1.2/default/tests/mock_wifi_mode_controller.h
deleted file mode 100644
index 50c3e35..0000000
--- a/wifi/1.2/default/tests/mock_wifi_mode_controller.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MOCK_WIFI_MODE_CONTROLLER_H_
-#define MOCK_WIFI_MODE_CONTROLLER_H_
-
-#include <gmock/gmock.h>
-
-#include "wifi_mode_controller.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace mode_controller {
-
-class MockWifiModeController : public WifiModeController {
-   public:
-    MockWifiModeController();
-    MOCK_METHOD0(initialize, bool());
-    MOCK_METHOD1(changeFirmwareMode, bool(IfaceType));
-    MOCK_METHOD1(isFirmwareModeChangeNeeded, bool(IfaceType));
-    MOCK_METHOD0(deinitialize, bool());
-};
-}  // namespace mode_controller
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // MOCK_WIFI_MODE_CONTROLLER_H_
diff --git a/wifi/1.2/default/tests/ringbuffer_unit_tests.cpp b/wifi/1.2/default/tests/ringbuffer_unit_tests.cpp
deleted file mode 100644
index ad5289b..0000000
--- a/wifi/1.2/default/tests/ringbuffer_unit_tests.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2018, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <gmock/gmock.h>
-
-#include "ringbuffer.h"
-
-using testing::Return;
-using testing::Test;
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-class RingbufferTest : public Test {
-   public:
-    const uint32_t maxBufferSize_ = 10;
-    Ringbuffer buffer_{maxBufferSize_};
-};
-
-TEST_F(RingbufferTest, CreateEmptyBuffer) {
-    ASSERT_TRUE(buffer_.getData().empty());
-}
-
-TEST_F(RingbufferTest, CanUseFullBufferCapacity) {
-    const std::vector<uint8_t> input(maxBufferSize_ / 2, '0');
-    const std::vector<uint8_t> input2(maxBufferSize_ / 2, '1');
-    buffer_.append(input);
-    buffer_.append(input2);
-    ASSERT_EQ(2u, buffer_.getData().size());
-    EXPECT_EQ(input, buffer_.getData().front());
-    EXPECT_EQ(input2, buffer_.getData().back());
-}
-
-TEST_F(RingbufferTest, OldDataIsRemovedOnOverflow) {
-    const std::vector<uint8_t> input(maxBufferSize_ / 2, '0');
-    const std::vector<uint8_t> input2(maxBufferSize_ / 2, '1');
-    const std::vector<uint8_t> input3 = {'G'};
-    buffer_.append(input);
-    buffer_.append(input2);
-    buffer_.append(input3);
-    ASSERT_EQ(2u, buffer_.getData().size());
-    EXPECT_EQ(input2, buffer_.getData().front());
-    EXPECT_EQ(input3, buffer_.getData().back());
-}
-
-TEST_F(RingbufferTest, MultipleOldDataIsRemovedOnOverflow) {
-    const std::vector<uint8_t> input(maxBufferSize_ / 2, '0');
-    const std::vector<uint8_t> input2(maxBufferSize_ / 2, '1');
-    const std::vector<uint8_t> input3(maxBufferSize_, '2');
-    buffer_.append(input);
-    buffer_.append(input2);
-    buffer_.append(input3);
-    ASSERT_EQ(1u, buffer_.getData().size());
-    EXPECT_EQ(input3, buffer_.getData().front());
-}
-
-TEST_F(RingbufferTest, AppendingEmptyBufferDoesNotAddGarbage) {
-    const std::vector<uint8_t> input = {};
-    buffer_.append(input);
-    ASSERT_TRUE(buffer_.getData().empty());
-}
-
-TEST_F(RingbufferTest, OversizedAppendIsDropped) {
-    const std::vector<uint8_t> input(maxBufferSize_ + 1, '0');
-    buffer_.append(input);
-    ASSERT_TRUE(buffer_.getData().empty());
-}
-
-TEST_F(RingbufferTest, OversizedAppendDoesNotDropExistingData) {
-    const std::vector<uint8_t> input(maxBufferSize_, '0');
-    const std::vector<uint8_t> input2(maxBufferSize_ + 1, '1');
-    buffer_.append(input);
-    buffer_.append(input2);
-    ASSERT_EQ(1u, buffer_.getData().size());
-    EXPECT_EQ(input, buffer_.getData().front());
-}
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/tests/runtests.sh b/wifi/1.2/default/tests/runtests.sh
deleted file mode 100755
index 966a6a7..0000000
--- a/wifi/1.2/default/tests/runtests.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright(C) 2017 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0(the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http:// www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-if [ -z $ANDROID_BUILD_TOP ]; then
-  echo "You need to source and lunch before you can use this script"
-  exit 1
-fi
-
-echo "Running tests"
-set -e # fail early
-
-#NOTE We can't actually run these commands, since they rely on functions added by
-#build / envsetup.sh to the bash shell environment.
-echo "+ mmma -j32 $ANDROID_BUILD_TOP/"
-make -j32 -C $ANDROID_BUILD_TOP -f build/core/main.mk \
-    MODULES-IN-hardware-interfaces-wifi-1.2-default
-
-set -x # print commands
-
-adb wait-for-device
-adb root
-adb wait-for-device
-
-#'disable-verity' will appear in 'adb remount' output if
-#dm - verity is enabled and needs to be disabled.
-if adb remount | grep 'disable-verity'; then
-  adb disable-verity
-  adb reboot
-  adb wait-for-device
-  adb root
-  adb wait-for-device
-  adb remount
-fi
-
-adb sync
-
-adb shell /data/nativetest/vendor/android.hardware.wifi@1.0-service-tests/android.hardware.wifi@1.0-service-tests
diff --git a/wifi/1.2/default/tests/wifi_chip_unit_tests.cpp b/wifi/1.2/default/tests/wifi_chip_unit_tests.cpp
deleted file mode 100644
index 8722d0a..0000000
--- a/wifi/1.2/default/tests/wifi_chip_unit_tests.cpp
+++ /dev/null
@@ -1,579 +0,0 @@
-/*
- * Copyright (C) 2017, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <android-base/macros.h>
-#include <gmock/gmock.h>
-
-#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
-#include "wifi_chip.h"
-
-#include "mock_wifi_feature_flags.h"
-#include "mock_wifi_legacy_hal.h"
-#include "mock_wifi_mode_controller.h"
-
-using testing::NiceMock;
-using testing::Return;
-using testing::Test;
-
-namespace {
-using android::hardware::wifi::V1_0::ChipId;
-
-constexpr ChipId kFakeChipId = 5;
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-class WifiChipTest : public Test {
-   protected:
-    void setupV1IfaceCombination() {
-        EXPECT_CALL(*feature_flags_, isAwareSupported())
-            .WillRepeatedly(testing::Return(false));
-        EXPECT_CALL(*feature_flags_, isDualInterfaceSupported())
-            .WillRepeatedly(testing::Return(false));
-        EXPECT_CALL(*feature_flags_, isApDisabled())
-            .WillRepeatedly(testing::Return(false));
-    }
-
-    void setupV1_AwareIfaceCombination() {
-        EXPECT_CALL(*feature_flags_, isAwareSupported())
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*feature_flags_, isDualInterfaceSupported())
-            .WillRepeatedly(testing::Return(false));
-        EXPECT_CALL(*feature_flags_, isApDisabled())
-            .WillRepeatedly(testing::Return(false));
-    }
-
-    void setupV1_AwareDisabledApIfaceCombination() {
-        EXPECT_CALL(*feature_flags_, isAwareSupported())
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*feature_flags_, isDualInterfaceSupported())
-            .WillRepeatedly(testing::Return(false));
-        EXPECT_CALL(*feature_flags_, isApDisabled())
-            .WillRepeatedly(testing::Return(true));
-    }
-
-    void setupV2_AwareIfaceCombination() {
-        EXPECT_CALL(*feature_flags_, isAwareSupported())
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*feature_flags_, isDualInterfaceSupported())
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*feature_flags_, isApDisabled())
-            .WillRepeatedly(testing::Return(false));
-    }
-
-    void setupV2_AwareDisabledApIfaceCombination() {
-        EXPECT_CALL(*feature_flags_, isAwareSupported())
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*feature_flags_, isDualInterfaceSupported())
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*feature_flags_, isApDisabled())
-            .WillRepeatedly(testing::Return(true));
-    }
-
-    void assertNumberOfModes(uint32_t num_modes) {
-        chip_->getAvailableModes(
-            [num_modes](const WifiStatus& status,
-                        const std::vector<WifiChip::ChipMode>& modes) {
-                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-                // V2_Aware has 1 mode of operation.
-                ASSERT_EQ(num_modes, modes.size());
-            });
-    }
-
-    void findModeAndConfigureForIfaceType(const IfaceType& type) {
-        // This should be aligned with kInvalidModeId in wifi_chip.cpp.
-        ChipModeId mode_id = UINT32_MAX;
-        chip_->getAvailableModes(
-            [&mode_id, &type](const WifiStatus& status,
-                              const std::vector<WifiChip::ChipMode>& modes) {
-                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-                for (const auto& mode : modes) {
-                    for (const auto& combination : mode.availableCombinations) {
-                        for (const auto& limit : combination.limits) {
-                            if (limit.types.end() !=
-                                std::find(limit.types.begin(),
-                                          limit.types.end(), type)) {
-                                mode_id = mode.id;
-                            }
-                        }
-                    }
-                }
-            });
-        ASSERT_NE(UINT32_MAX, mode_id);
-
-        chip_->configureChip(mode_id, [](const WifiStatus& status) {
-            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-        });
-    }
-
-    // Returns an empty string on error.
-    std::string createIface(const IfaceType& type) {
-        std::string iface_name;
-        if (type == IfaceType::AP) {
-            chip_->createApIface([&iface_name](const WifiStatus& status,
-                                               const sp<IWifiApIface>& iface) {
-                if (WifiStatusCode::SUCCESS == status.code) {
-                    ASSERT_NE(iface.get(), nullptr);
-                    iface->getName([&iface_name](const WifiStatus& status,
-                                                 const hidl_string& name) {
-                        ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-                        iface_name = name.c_str();
-                    });
-                }
-            });
-        } else if (type == IfaceType::NAN) {
-            chip_->createNanIface(
-                [&iface_name](
-                    const WifiStatus& status,
-                    const sp<android::hardware::wifi::V1_0::IWifiNanIface>&
-                        iface) {
-                    if (WifiStatusCode::SUCCESS == status.code) {
-                        ASSERT_NE(iface.get(), nullptr);
-                        iface->getName([&iface_name](const WifiStatus& status,
-                                                     const hidl_string& name) {
-                            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-                            iface_name = name.c_str();
-                        });
-                    }
-                });
-        } else if (type == IfaceType::P2P) {
-            chip_->createP2pIface(
-                [&iface_name](const WifiStatus& status,
-                              const sp<IWifiP2pIface>& iface) {
-                    if (WifiStatusCode::SUCCESS == status.code) {
-                        ASSERT_NE(iface.get(), nullptr);
-                        iface->getName([&iface_name](const WifiStatus& status,
-                                                     const hidl_string& name) {
-                            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-                            iface_name = name.c_str();
-                        });
-                    }
-                });
-        } else if (type == IfaceType::STA) {
-            chip_->createStaIface(
-                [&iface_name](const WifiStatus& status,
-                              const sp<V1_0::IWifiStaIface>& iface) {
-                    if (WifiStatusCode::SUCCESS == status.code) {
-                        ASSERT_NE(iface.get(), nullptr);
-                        iface->getName([&iface_name](const WifiStatus& status,
-                                                     const hidl_string& name) {
-                            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-                            iface_name = name.c_str();
-                        });
-                    }
-                });
-        }
-        return iface_name;
-    }
-
-    void removeIface(const IfaceType& type, const std::string& iface_name) {
-        if (type == IfaceType::AP) {
-            chip_->removeApIface(iface_name, [](const WifiStatus& status) {
-                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-            });
-        } else if (type == IfaceType::NAN) {
-            chip_->removeNanIface(iface_name, [](const WifiStatus& status) {
-                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-            });
-        } else if (type == IfaceType::P2P) {
-            chip_->removeP2pIface(iface_name, [](const WifiStatus& status) {
-                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-            });
-        } else if (type == IfaceType::STA) {
-            chip_->removeStaIface(iface_name, [](const WifiStatus& status) {
-                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
-            });
-        }
-    }
-
-   public:
-    void SetUp() override {
-        chip_ = new WifiChip(chip_id_, legacy_hal_, mode_controller_,
-                             feature_flags_);
-
-        EXPECT_CALL(*mode_controller_, changeFirmwareMode(testing::_))
-            .WillRepeatedly(testing::Return(true));
-        EXPECT_CALL(*legacy_hal_, start())
-            .WillRepeatedly(testing::Return(legacy_hal::WIFI_SUCCESS));
-    }
-
-   private:
-    sp<WifiChip> chip_;
-    ChipId chip_id_ = kFakeChipId;
-    std::shared_ptr<NiceMock<legacy_hal::MockWifiLegacyHal>> legacy_hal_{
-        new NiceMock<legacy_hal::MockWifiLegacyHal>};
-    std::shared_ptr<NiceMock<mode_controller::MockWifiModeController>>
-        mode_controller_{new NiceMock<mode_controller::MockWifiModeController>};
-    std::shared_ptr<NiceMock<feature_flags::MockWifiFeatureFlags>>
-        feature_flags_{new NiceMock<feature_flags::MockWifiFeatureFlags>};
-};
-
-////////// V1 Iface Combinations ////////////
-// Mode 1 - STA + P2P
-// Mode 2 - AP
-class WifiChipV1IfaceCombinationTest : public WifiChipTest {
-   public:
-    void SetUp() override {
-        setupV1IfaceCombination();
-        WifiChipTest::SetUp();
-        // V1 has 2 modes of operation.
-        assertNumberOfModes(2u);
-    }
-};
-
-TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateSta_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateP2p_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateNan_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateAp_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_TRUE(createIface(IfaceType::AP).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateStaP2p_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateAp_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_FALSE(createIface(IfaceType::AP).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateSta_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_TRUE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateP2p_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_TRUE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateNan_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-}
-
-////////// V1 + Aware Iface Combinations ////////////
-// Mode 1 - STA + P2P/NAN
-// Mode 2 - AP
-class WifiChipV1_AwareIfaceCombinationTest : public WifiChipTest {
-   public:
-    void SetUp() override {
-        setupV1_AwareIfaceCombination();
-        WifiChipTest::SetUp();
-        // V1_Aware has 2 modes of operation.
-        assertNumberOfModes(2u);
-    }
-};
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateSta_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateP2p_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateNan_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateAp_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_TRUE(createIface(IfaceType::AP).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest,
-       StaMode_CreateStaP2p_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest,
-       StaMode_CreateStaNan_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest,
-       StaMode_CreateStaP2PNan_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest,
-       StaMode_CreateStaNan_AfterP2pRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    const auto p2p_iface_name = createIface(IfaceType::P2P);
-    ASSERT_FALSE(p2p_iface_name.empty());
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-
-    // After removing P2P iface, NAN iface creation should succeed.
-    removeIface(IfaceType::P2P, p2p_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest,
-       StaMode_CreateStaP2p_AfterNanRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    const auto nan_iface_name = createIface(IfaceType::NAN);
-    ASSERT_FALSE(nan_iface_name.empty());
-    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
-
-    // After removing NAN iface, P2P iface creation should succeed.
-    removeIface(IfaceType::NAN, nan_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateAp_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_FALSE(createIface(IfaceType::AP).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateSta_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_TRUE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateP2p_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_TRUE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateNan_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-}
-
-////////// V2 + Aware Iface Combinations ////////////
-// Mode 1 - STA + STA/AP
-//        - STA + P2P/NAN
-class WifiChipV2_AwareIfaceCombinationTest : public WifiChipTest {
-   public:
-    void SetUp() override {
-        setupV2_AwareIfaceCombination();
-        WifiChipTest::SetUp();
-        // V2_Aware has 1 mode of operation.
-        assertNumberOfModes(1u);
-    }
-};
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateSta_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateP2p_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateNan_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateAp_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::AP).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaSta_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_TRUE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaAp_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_FALSE(createIface(IfaceType::AP).empty());
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest,
-       CreateSta_AfterStaApRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    const auto sta_iface_name = createIface(IfaceType::STA);
-    ASSERT_FALSE(sta_iface_name.empty());
-    const auto ap_iface_name = createIface(IfaceType::AP);
-    ASSERT_FALSE(ap_iface_name.empty());
-
-    ASSERT_TRUE(createIface(IfaceType::STA).empty());
-
-    // After removing AP & STA iface, STA iface creation should succeed.
-    removeIface(IfaceType::STA, sta_iface_name);
-    removeIface(IfaceType::AP, ap_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaP2p_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaNan_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaP2PNan_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest,
-       CreateStaNan_AfterP2pRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    const auto p2p_iface_name = createIface(IfaceType::P2P);
-    ASSERT_FALSE(p2p_iface_name.empty());
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-
-    // After removing P2P iface, NAN iface creation should succeed.
-    removeIface(IfaceType::P2P, p2p_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest,
-       CreateStaP2p_AfterNanRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    const auto nan_iface_name = createIface(IfaceType::NAN);
-    ASSERT_FALSE(nan_iface_name.empty());
-    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
-
-    // After removing NAN iface, P2P iface creation should succeed.
-    removeIface(IfaceType::NAN, nan_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateApNan_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_FALSE(createIface(IfaceType::AP).empty());
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateApP2p_ShouldFail) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    ASSERT_FALSE(createIface(IfaceType::AP).empty());
-    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest,
-       StaMode_CreateStaNan_AfterP2pRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    const auto p2p_iface_name = createIface(IfaceType::P2P);
-    ASSERT_FALSE(p2p_iface_name.empty());
-    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
-
-    // After removing P2P iface, NAN iface creation should succeed.
-    removeIface(IfaceType::P2P, p2p_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest,
-       StaMode_CreateStaP2p_AfterNanRemove_ShouldSucceed) {
-    findModeAndConfigureForIfaceType(IfaceType::STA);
-    ASSERT_FALSE(createIface(IfaceType::STA).empty());
-    const auto nan_iface_name = createIface(IfaceType::NAN);
-    ASSERT_FALSE(nan_iface_name.empty());
-    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
-
-    // After removing NAN iface, P2P iface creation should succeed.
-    removeIface(IfaceType::NAN, nan_iface_name);
-    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
-}
-
-TEST_F(WifiChipV2_AwareIfaceCombinationTest,
-       CreateStaAp_EnsureDifferentIfaceNames) {
-    findModeAndConfigureForIfaceType(IfaceType::AP);
-    const auto sta_iface_name = createIface(IfaceType::STA);
-    const auto ap_iface_name = createIface(IfaceType::AP);
-    ASSERT_FALSE(sta_iface_name.empty());
-    ASSERT_FALSE(ap_iface_name.empty());
-    ASSERT_NE(sta_iface_name, ap_iface_name);
-}
-
-////////// V1 Iface Combinations when AP creation is disabled //////////
-class WifiChipV1_AwareDisabledApIfaceCombinationTest : public WifiChipTest {
- public:
-  void SetUp() override {
-    setupV1_AwareDisabledApIfaceCombination();
-    WifiChipTest::SetUp();
-  }
-};
-
-TEST_F(WifiChipV1_AwareDisabledApIfaceCombinationTest,
-       StaMode_CreateSta_ShouldSucceed) {
-  findModeAndConfigureForIfaceType(IfaceType::STA);
-  ASSERT_FALSE(createIface(IfaceType::STA).empty());
-  ASSERT_TRUE(createIface(IfaceType::AP).empty());
-}
-
-////////// V2 Iface Combinations when AP creation is disabled //////////
-class WifiChipV2_AwareDisabledApIfaceCombinationTest: public WifiChipTest {
- public:
-  void SetUp() override {
-    setupV2_AwareDisabledApIfaceCombination();
-    WifiChipTest::SetUp();
-  }
-};
-
-TEST_F(WifiChipV2_AwareDisabledApIfaceCombinationTest,
-       CreateSta_ShouldSucceed) {
-  findModeAndConfigureForIfaceType(IfaceType::STA);
-  ASSERT_FALSE(createIface(IfaceType::STA).empty());
-  ASSERT_TRUE(createIface(IfaceType::AP).empty());
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi.cpp b/wifi/1.2/default/wifi.cpp
deleted file mode 100644
index 79f921f..0000000
--- a/wifi/1.2/default/wifi.cpp
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "hidl_return_util.h"
-#include "wifi.h"
-#include "wifi_status_util.h"
-
-namespace {
-// Chip ID to use for the only supported chip.
-static constexpr android::hardware::wifi::V1_0::ChipId kChipId = 0;
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-using hidl_return_util::validateAndCallWithLock;
-
-Wifi::Wifi(
-    const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
-    const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
-    const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags)
-    : legacy_hal_(legacy_hal),
-      mode_controller_(mode_controller),
-      feature_flags_(feature_flags),
-      run_state_(RunState::STOPPED) {}
-
-bool Wifi::isValid() {
-    // This object is always valid.
-    return true;
-}
-
-Return<void> Wifi::registerEventCallback(
-    const sp<IWifiEventCallback>& event_callback,
-    registerEventCallback_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
-                           &Wifi::registerEventCallbackInternal, hidl_status_cb,
-                           event_callback);
-}
-
-Return<bool> Wifi::isStarted() { return run_state_ != RunState::STOPPED; }
-
-Return<void> Wifi::start(start_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
-                           &Wifi::startInternal, hidl_status_cb);
-}
-
-Return<void> Wifi::stop(stop_cb hidl_status_cb) {
-    return validateAndCallWithLock(this, WifiStatusCode::ERROR_UNKNOWN,
-                                   &Wifi::stopInternal, hidl_status_cb);
-}
-
-Return<void> Wifi::getChipIds(getChipIds_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
-                           &Wifi::getChipIdsInternal, hidl_status_cb);
-}
-
-Return<void> Wifi::getChip(ChipId chip_id, getChip_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
-                           &Wifi::getChipInternal, hidl_status_cb, chip_id);
-}
-
-Return<void> Wifi::debug(const hidl_handle& handle,
-                         const hidl_vec<hidl_string>&) {
-    LOG(INFO) << "-----------Debug is called----------------";
-    if (!chip_.get()) {
-        return Void();
-    }
-    return chip_->debug(handle, {});
-}
-
-WifiStatus Wifi::registerEventCallbackInternal(
-    const sp<IWifiEventCallback>& event_callback) {
-    if (!event_cb_handler_.addCallback(event_callback)) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus Wifi::startInternal() {
-    if (run_state_ == RunState::STARTED) {
-        return createWifiStatus(WifiStatusCode::SUCCESS);
-    } else if (run_state_ == RunState::STOPPING) {
-        return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
-                                "HAL is stopping");
-    }
-    WifiStatus wifi_status = initializeModeControllerAndLegacyHal();
-    if (wifi_status.code == WifiStatusCode::SUCCESS) {
-        // Create the chip instance once the HAL is started.
-        chip_ = new WifiChip(kChipId, legacy_hal_, mode_controller_,
-                             feature_flags_);
-        run_state_ = RunState::STARTED;
-        for (const auto& callback : event_cb_handler_.getCallbacks()) {
-            if (!callback->onStart().isOk()) {
-                LOG(ERROR) << "Failed to invoke onStart callback";
-            };
-        }
-        LOG(INFO) << "Wifi HAL started";
-    } else {
-        for (const auto& callback : event_cb_handler_.getCallbacks()) {
-            if (!callback->onFailure(wifi_status).isOk()) {
-                LOG(ERROR) << "Failed to invoke onFailure callback";
-            }
-        }
-        LOG(ERROR) << "Wifi HAL start failed";
-    }
-    return wifi_status;
-}
-
-WifiStatus Wifi::stopInternal(
-    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
-    if (run_state_ == RunState::STOPPED) {
-        return createWifiStatus(WifiStatusCode::SUCCESS);
-    } else if (run_state_ == RunState::STOPPING) {
-        return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
-                                "HAL is stopping");
-    }
-    // Clear the chip object and its child objects since the HAL is now
-    // stopped.
-    if (chip_.get()) {
-        chip_->invalidate();
-        chip_.clear();
-    }
-    WifiStatus wifi_status = stopLegacyHalAndDeinitializeModeController(lock);
-    if (wifi_status.code == WifiStatusCode::SUCCESS) {
-        for (const auto& callback : event_cb_handler_.getCallbacks()) {
-            if (!callback->onStop().isOk()) {
-                LOG(ERROR) << "Failed to invoke onStop callback";
-            };
-        }
-        LOG(INFO) << "Wifi HAL stopped";
-    } else {
-        for (const auto& callback : event_cb_handler_.getCallbacks()) {
-            if (!callback->onFailure(wifi_status).isOk()) {
-                LOG(ERROR) << "Failed to invoke onFailure callback";
-            }
-        }
-        LOG(ERROR) << "Wifi HAL stop failed";
-    }
-    return wifi_status;
-}
-
-std::pair<WifiStatus, std::vector<ChipId>> Wifi::getChipIdsInternal() {
-    std::vector<ChipId> chip_ids;
-    if (chip_.get()) {
-        chip_ids.emplace_back(kChipId);
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), std::move(chip_ids)};
-}
-
-std::pair<WifiStatus, sp<IWifiChip>> Wifi::getChipInternal(ChipId chip_id) {
-    if (!chip_.get()) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_STARTED), nullptr};
-    }
-    if (chip_id != kChipId) {
-        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), chip_};
-}
-
-WifiStatus Wifi::initializeModeControllerAndLegacyHal() {
-    if (!mode_controller_->initialize()) {
-        LOG(ERROR) << "Failed to initialize firmware mode controller";
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    legacy_hal::wifi_error legacy_status = legacy_hal_->initialize();
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to initialize legacy HAL: "
-                   << legacyErrorToString(legacy_status);
-        return createWifiStatusFromLegacyError(legacy_status);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus Wifi::stopLegacyHalAndDeinitializeModeController(
-    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
-    run_state_ = RunState::STOPPING;
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_->stop(lock, [&]() { run_state_ = RunState::STOPPED; });
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to stop legacy HAL: "
-                   << legacyErrorToString(legacy_status);
-        return createWifiStatusFromLegacyError(legacy_status);
-    }
-    if (!mode_controller_->deinitialize()) {
-        LOG(ERROR) << "Failed to deinitialize firmware mode controller";
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi.h b/wifi/1.2/default/wifi.h
deleted file mode 100644
index 86919b1..0000000
--- a/wifi/1.2/default/wifi.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_H_
-#define WIFI_H_
-
-#include <functional>
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.2/IWifi.h>
-#include <utils/Looper.h>
-
-#include "hidl_callback_util.h"
-#include "wifi_chip.h"
-#include "wifi_feature_flags.h"
-#include "wifi_legacy_hal.h"
-#include "wifi_mode_controller.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-/**
- * Root HIDL interface object used to control the Wifi HAL.
- */
-class Wifi : public V1_2::IWifi {
-   public:
-    Wifi(const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
-         const std::shared_ptr<mode_controller::WifiModeController>
-             mode_controller,
-         const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags);
-
-    bool isValid();
-
-    // HIDL methods exposed.
-    Return<void> registerEventCallback(
-        const sp<IWifiEventCallback>& event_callback,
-        registerEventCallback_cb hidl_status_cb) override;
-    Return<bool> isStarted() override;
-    Return<void> start(start_cb hidl_status_cb) override;
-    Return<void> stop(stop_cb hidl_status_cb) override;
-    Return<void> getChipIds(getChipIds_cb hidl_status_cb) override;
-    Return<void> getChip(ChipId chip_id, getChip_cb hidl_status_cb) override;
-    Return<void> debug(const hidl_handle& handle,
-                       const hidl_vec<hidl_string>& options) override;
-
-   private:
-    enum class RunState { STOPPED, STARTED, STOPPING };
-
-    // Corresponding worker functions for the HIDL methods.
-    WifiStatus registerEventCallbackInternal(
-        const sp<IWifiEventCallback>& event_callback);
-    WifiStatus startInternal();
-    WifiStatus stopInternal(std::unique_lock<std::recursive_mutex>* lock);
-    std::pair<WifiStatus, std::vector<ChipId>> getChipIdsInternal();
-    std::pair<WifiStatus, sp<IWifiChip>> getChipInternal(ChipId chip_id);
-
-    WifiStatus initializeModeControllerAndLegacyHal();
-    WifiStatus stopLegacyHalAndDeinitializeModeController(
-        std::unique_lock<std::recursive_mutex>* lock);
-
-    // Instance is created in this root level |IWifi| HIDL interface object
-    // and shared with all the child HIDL interface objects.
-    std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    std::shared_ptr<mode_controller::WifiModeController> mode_controller_;
-    std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
-    RunState run_state_;
-    sp<WifiChip> chip_;
-    hidl_callback_util::HidlCallbackHandler<IWifiEventCallback>
-        event_cb_handler_;
-
-    DISALLOW_COPY_AND_ASSIGN(Wifi);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_H_
diff --git a/wifi/1.2/default/wifi_ap_iface.cpp b/wifi/1.2/default/wifi_ap_iface.cpp
deleted file mode 100644
index 92b7b48..0000000
--- a/wifi/1.2/default/wifi_ap_iface.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "hidl_return_util.h"
-#include "hidl_struct_util.h"
-#include "wifi_ap_iface.h"
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-
-WifiApIface::WifiApIface(
-    const std::string& ifname,
-    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
-    : ifname_(ifname), legacy_hal_(legacy_hal), is_valid_(true) {}
-
-void WifiApIface::invalidate() {
-    legacy_hal_.reset();
-    is_valid_ = false;
-}
-
-bool WifiApIface::isValid() { return is_valid_; }
-
-std::string WifiApIface::getName() { return ifname_; }
-
-Return<void> WifiApIface::getName(getName_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiApIface::getNameInternal, hidl_status_cb);
-}
-
-Return<void> WifiApIface::getType(getType_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiApIface::getTypeInternal, hidl_status_cb);
-}
-
-Return<void> WifiApIface::setCountryCode(const hidl_array<int8_t, 2>& code,
-                                         setCountryCode_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiApIface::setCountryCodeInternal, hidl_status_cb,
-                           code);
-}
-
-Return<void> WifiApIface::getValidFrequenciesForBand(
-    WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiApIface::getValidFrequenciesForBandInternal,
-                           hidl_status_cb, band);
-}
-
-std::pair<WifiStatus, std::string> WifiApIface::getNameInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
-}
-
-std::pair<WifiStatus, IfaceType> WifiApIface::getTypeInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::AP};
-}
-
-WifiStatus WifiApIface::setCountryCodeInternal(
-    const std::array<int8_t, 2>& code) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->setCountryCode(ifname_, code);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
-WifiApIface::getValidFrequenciesForBandInternal(WifiBand band) {
-    static_assert(sizeof(WifiChannelInMhz) == sizeof(uint32_t),
-                  "Size mismatch");
-    legacy_hal::wifi_error legacy_status;
-    std::vector<uint32_t> valid_frequencies;
-    std::tie(legacy_status, valid_frequencies) =
-        legacy_hal_.lock()->getValidFrequenciesForBand(
-            ifname_, hidl_struct_util::convertHidlWifiBandToLegacy(band));
-    return {createWifiStatusFromLegacyError(legacy_status), valid_frequencies};
-}
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_ap_iface.h b/wifi/1.2/default/wifi_ap_iface.h
deleted file mode 100644
index 5363ec2..0000000
--- a/wifi/1.2/default/wifi_ap_iface.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_AP_IFACE_H_
-#define WIFI_AP_IFACE_H_
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.0/IWifiApIface.h>
-
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * HIDL interface object used to control a AP Iface instance.
- */
-class WifiApIface : public V1_0::IWifiApIface {
-   public:
-    WifiApIface(const std::string& ifname,
-                const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
-    // Refer to |WifiChip::invalidate()|.
-    void invalidate();
-    bool isValid();
-    std::string getName();
-
-    // HIDL methods exposed.
-    Return<void> getName(getName_cb hidl_status_cb) override;
-    Return<void> getType(getType_cb hidl_status_cb) override;
-    Return<void> setCountryCode(const hidl_array<int8_t, 2>& code,
-                                setCountryCode_cb hidl_status_cb) override;
-    Return<void> getValidFrequenciesForBand(
-        WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) override;
-
-   private:
-    // Corresponding worker functions for the HIDL methods.
-    std::pair<WifiStatus, std::string> getNameInternal();
-    std::pair<WifiStatus, IfaceType> getTypeInternal();
-    WifiStatus setCountryCodeInternal(const std::array<int8_t, 2>& code);
-    std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
-    getValidFrequenciesForBandInternal(WifiBand band);
-
-    std::string ifname_;
-    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    bool is_valid_;
-
-    DISALLOW_COPY_AND_ASSIGN(WifiApIface);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_AP_IFACE_H_
diff --git a/wifi/1.2/default/wifi_chip.cpp b/wifi/1.2/default/wifi_chip.cpp
deleted file mode 100644
index 3bd0557..0000000
--- a/wifi/1.2/default/wifi_chip.cpp
+++ /dev/null
@@ -1,1421 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <fcntl.h>
-
-#include <android-base/logging.h>
-#include <android-base/unique_fd.h>
-#include <cutils/properties.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-
-#include "hidl_return_util.h"
-#include "hidl_struct_util.h"
-#include "wifi_chip.h"
-#include "wifi_status_util.h"
-
-namespace {
-using android::base::unique_fd;
-using android::hardware::hidl_string;
-using android::hardware::hidl_vec;
-using android::hardware::wifi::V1_0::ChipModeId;
-using android::hardware::wifi::V1_0::IfaceType;
-using android::hardware::wifi::V1_0::IWifiChip;
-using android::sp;
-
-constexpr ChipModeId kInvalidModeId = UINT32_MAX;
-// These mode ID's should be unique (even across combo versions). Refer to
-// handleChipConfiguration() for it's usage.
-// Mode ID's for V1
-constexpr ChipModeId kV1StaChipModeId = 0;
-constexpr ChipModeId kV1ApChipModeId = 1;
-// Mode ID for V2
-constexpr ChipModeId kV2ChipModeId = 2;
-
-constexpr char kCpioMagic[] = "070701";
-constexpr size_t kMaxBufferSizeBytes = 1024 * 1024;
-constexpr uint32_t kMaxRingBufferFileAgeSeconds = 60 * 60;
-constexpr uint32_t kMaxRingBufferFileNum = 20;
-constexpr char kTombstoneFolderPath[] = "/data/vendor/tombstones/wifi/";
-
-template <typename Iface>
-void invalidateAndClear(std::vector<sp<Iface>>& ifaces, sp<Iface> iface) {
-    iface->invalidate();
-    ifaces.erase(std::remove(ifaces.begin(), ifaces.end(), iface),
-                 ifaces.end());
-}
-
-template <typename Iface>
-void invalidateAndClearAll(std::vector<sp<Iface>>& ifaces) {
-    for (const auto& iface : ifaces) {
-        iface->invalidate();
-    }
-    ifaces.clear();
-}
-
-template <typename Iface>
-std::vector<hidl_string> getNames(std::vector<sp<Iface>>& ifaces) {
-    std::vector<hidl_string> names;
-    for (const auto& iface : ifaces) {
-        names.emplace_back(iface->getName());
-    }
-    return names;
-}
-
-template <typename Iface>
-sp<Iface> findUsingName(std::vector<sp<Iface>>& ifaces,
-                        const std::string& name) {
-    std::vector<hidl_string> names;
-    for (const auto& iface : ifaces) {
-        if (name == iface->getName()) {
-            return iface;
-        }
-    }
-    return nullptr;
-}
-
-std::string getWlan0IfaceName() {
-    std::array<char, PROPERTY_VALUE_MAX> buffer;
-    property_get("wifi.interface", buffer.data(), "wlan0");
-    return buffer.data();
-}
-
-std::string getWlan1IfaceName() {
-    std::array<char, PROPERTY_VALUE_MAX> buffer;
-    property_get("wifi.concurrent.interface", buffer.data(), "wlan1");
-    return buffer.data();
-}
-
-std::string getP2pIfaceName() {
-    std::array<char, PROPERTY_VALUE_MAX> buffer;
-    property_get("wifi.direct.interface", buffer.data(), "p2p0");
-    return buffer.data();
-}
-
-// delete files that meet either conditions:
-// 1. older than a predefined time in the wifi tombstone dir.
-// 2. Files in excess to a predefined amount, starting from the oldest ones
-bool removeOldFilesInternal() {
-    time_t now = time(0);
-    const time_t delete_files_before = now - kMaxRingBufferFileAgeSeconds;
-    DIR* dir_dump = opendir(kTombstoneFolderPath);
-    if (!dir_dump) {
-        LOG(ERROR) << "Failed to open directory: " << strerror(errno);
-        return false;
-    }
-    unique_fd dir_auto_closer(dirfd(dir_dump));
-    struct dirent* dp;
-    bool success = true;
-    std::list<std::pair<const time_t, std::string>> valid_files;
-    while ((dp = readdir(dir_dump))) {
-        if (dp->d_type != DT_REG) {
-            continue;
-        }
-        std::string cur_file_name(dp->d_name);
-        struct stat cur_file_stat;
-        std::string cur_file_path = kTombstoneFolderPath + cur_file_name;
-        if (stat(cur_file_path.c_str(), &cur_file_stat) == -1) {
-            LOG(ERROR) << "Failed to get file stat for " << cur_file_path
-                       << ": " << strerror(errno);
-            success = false;
-            continue;
-        }
-        const time_t cur_file_time = cur_file_stat.st_mtime;
-        valid_files.push_back(
-            std::pair<const time_t, std::string>(cur_file_time, cur_file_path));
-    }
-    valid_files.sort();  // sort the list of files by last modified time from
-                         // small to big.
-    uint32_t cur_file_count = valid_files.size();
-    for (auto cur_file : valid_files) {
-        if (cur_file_count > kMaxRingBufferFileNum ||
-            cur_file.first < delete_files_before) {
-            if (unlink(cur_file.second.c_str()) != 0) {
-                LOG(ERROR) << "Error deleting file " << strerror(errno);
-                success = false;
-            }
-            cur_file_count--;
-        } else {
-            break;
-        }
-    }
-    return success;
-}
-
-// Helper function for |cpioArchiveFilesInDir|
-bool cpioWriteHeader(int out_fd, struct stat& st, const char* file_name,
-                     size_t file_name_len) {
-    std::array<char, 32 * 1024> read_buf;
-    ssize_t llen =
-        sprintf(read_buf.data(),
-                "%s%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X",
-                kCpioMagic, static_cast<int>(st.st_ino), st.st_mode, st.st_uid,
-                st.st_gid, static_cast<int>(st.st_nlink),
-                static_cast<int>(st.st_mtime), static_cast<int>(st.st_size),
-                major(st.st_dev), minor(st.st_dev), major(st.st_rdev),
-                minor(st.st_rdev), static_cast<uint32_t>(file_name_len), 0);
-    if (write(out_fd, read_buf.data(), llen) == -1) {
-        LOG(ERROR) << "Error writing cpio header to file " << file_name << " "
-                   << strerror(errno);
-        return false;
-    }
-    if (write(out_fd, file_name, file_name_len) == -1) {
-        LOG(ERROR) << "Error writing filename to file " << file_name << " "
-                   << strerror(errno);
-        return false;
-    }
-
-    // NUL Pad header up to 4 multiple bytes.
-    llen = (llen + file_name_len) % 4;
-    if (llen != 0) {
-        const uint32_t zero = 0;
-        if (write(out_fd, &zero, 4 - llen) == -1) {
-            LOG(ERROR) << "Error padding 0s to file " << file_name << " "
-                       << strerror(errno);
-            return false;
-        }
-    }
-    return true;
-}
-
-// Helper function for |cpioArchiveFilesInDir|
-size_t cpioWriteFileContent(int fd_read, int out_fd, struct stat& st) {
-    // writing content of file
-    std::array<char, 32 * 1024> read_buf;
-    ssize_t llen = st.st_size;
-    size_t n_error = 0;
-    while (llen > 0) {
-        ssize_t bytes_read = read(fd_read, read_buf.data(), read_buf.size());
-        if (bytes_read == -1) {
-            LOG(ERROR) << "Error reading file " << strerror(errno);
-            return ++n_error;
-        }
-        llen -= bytes_read;
-        if (write(out_fd, read_buf.data(), bytes_read) == -1) {
-            LOG(ERROR) << "Error writing data to file " << strerror(errno);
-            return ++n_error;
-        }
-        if (bytes_read == 0) {  // this should never happen, but just in case
-                                // to unstuck from while loop
-            LOG(ERROR) << "Unexpected read result for " << strerror(errno);
-            n_error++;
-            break;
-        }
-    }
-    llen = st.st_size % 4;
-    if (llen != 0) {
-        const uint32_t zero = 0;
-        if (write(out_fd, &zero, 4 - llen) == -1) {
-            LOG(ERROR) << "Error padding 0s to file " << strerror(errno);
-            return ++n_error;
-        }
-    }
-    return n_error;
-}
-
-// Helper function for |cpioArchiveFilesInDir|
-bool cpioWriteFileTrailer(int out_fd) {
-    std::array<char, 4096> read_buf;
-    read_buf.fill(0);
-    if (write(out_fd, read_buf.data(),
-              sprintf(read_buf.data(), "070701%040X%056X%08XTRAILER!!!", 1,
-                      0x0b, 0) +
-                  4) == -1) {
-        LOG(ERROR) << "Error writing trailing bytes " << strerror(errno);
-        return false;
-    }
-    return true;
-}
-
-// Archives all files in |input_dir| and writes result into |out_fd|
-// Logic obtained from //external/toybox/toys/posix/cpio.c "Output cpio archive"
-// portion
-size_t cpioArchiveFilesInDir(int out_fd, const char* input_dir) {
-    struct dirent* dp;
-    size_t n_error = 0;
-    DIR* dir_dump = opendir(input_dir);
-    if (!dir_dump) {
-        LOG(ERROR) << "Failed to open directory: " << strerror(errno);
-        return ++n_error;
-    }
-    unique_fd dir_auto_closer(dirfd(dir_dump));
-    while ((dp = readdir(dir_dump))) {
-        if (dp->d_type != DT_REG) {
-            continue;
-        }
-        std::string cur_file_name(dp->d_name);
-        // string.size() does not include the null terminator. The cpio FreeBSD
-        // file header expects the null character to be included in the length.
-        const size_t file_name_len = cur_file_name.size() + 1;
-        struct stat st;
-        const std::string cur_file_path = kTombstoneFolderPath + cur_file_name;
-        if (stat(cur_file_path.c_str(), &st) == -1) {
-            LOG(ERROR) << "Failed to get file stat for " << cur_file_path
-                       << ": " << strerror(errno);
-            n_error++;
-            continue;
-        }
-        const int fd_read = open(cur_file_path.c_str(), O_RDONLY);
-        if (fd_read == -1) {
-            LOG(ERROR) << "Failed to open file " << cur_file_path << " "
-                       << strerror(errno);
-            n_error++;
-            continue;
-        }
-        unique_fd file_auto_closer(fd_read);
-        if (!cpioWriteHeader(out_fd, st, cur_file_name.c_str(),
-                             file_name_len)) {
-            return ++n_error;
-        }
-        size_t write_error = cpioWriteFileContent(fd_read, out_fd, st);
-        if (write_error) {
-            return n_error + write_error;
-        }
-    }
-    if (!cpioWriteFileTrailer(out_fd)) {
-        return ++n_error;
-    }
-    return n_error;
-}
-
-// Helper function to create a non-const char*.
-std::vector<char> makeCharVec(const std::string& str) {
-    std::vector<char> vec(str.size() + 1);
-    vec.assign(str.begin(), str.end());
-    vec.push_back('\0');
-    return vec;
-}
-
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-using hidl_return_util::validateAndCallWithLock;
-
-WifiChip::WifiChip(
-    ChipId chip_id, const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
-    const std::weak_ptr<mode_controller::WifiModeController> mode_controller,
-    const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags)
-    : chip_id_(chip_id),
-      legacy_hal_(legacy_hal),
-      mode_controller_(mode_controller),
-      feature_flags_(feature_flags),
-      is_valid_(true),
-      current_mode_id_(kInvalidModeId),
-      debug_ring_buffer_cb_registered_(false) {
-    populateModes();
-}
-
-void WifiChip::invalidate() {
-    if (!writeRingbufferFilesInternal()) {
-        LOG(ERROR) << "Error writing files to flash";
-    }
-    invalidateAndRemoveAllIfaces();
-    legacy_hal_.reset();
-    event_cb_handler_.invalidate();
-    is_valid_ = false;
-}
-
-bool WifiChip::isValid() { return is_valid_; }
-
-std::set<sp<IWifiChipEventCallback>> WifiChip::getEventCallbacks() {
-    return event_cb_handler_.getCallbacks();
-}
-
-Return<void> WifiChip::getId(getId_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getIdInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::registerEventCallback(
-    const sp<V1_0::IWifiChipEventCallback>& event_callback,
-    registerEventCallback_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::registerEventCallbackInternal,
-                           hidl_status_cb, event_callback);
-}
-
-Return<void> WifiChip::getCapabilities(getCapabilities_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getCapabilitiesInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getAvailableModes(getAvailableModes_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getAvailableModesInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::configureChip(ChipModeId mode_id,
-                                     configureChip_cb hidl_status_cb) {
-    return validateAndCallWithLock(
-        this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-        &WifiChip::configureChipInternal, hidl_status_cb, mode_id);
-}
-
-Return<void> WifiChip::getMode(getMode_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getModeInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::requestChipDebugInfo(
-    requestChipDebugInfo_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::requestChipDebugInfoInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::requestDriverDebugDump(
-    requestDriverDebugDump_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::requestDriverDebugDumpInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::requestFirmwareDebugDump(
-    requestFirmwareDebugDump_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::requestFirmwareDebugDumpInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::createApIface(createApIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::createApIfaceInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getApIfaceNames(getApIfaceNames_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getApIfaceNamesInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getApIface(const hidl_string& ifname,
-                                  getApIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getApIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::removeApIface(const hidl_string& ifname,
-                                     removeApIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::removeApIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::createNanIface(createNanIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::createNanIfaceInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getNanIfaceNames(getNanIfaceNames_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getNanIfaceNamesInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getNanIface(const hidl_string& ifname,
-                                   getNanIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getNanIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::removeNanIface(const hidl_string& ifname,
-                                      removeNanIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::removeNanIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::createP2pIface(createP2pIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::createP2pIfaceInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getP2pIfaceNames(getP2pIfaceNames_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getP2pIfaceNamesInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getP2pIface(const hidl_string& ifname,
-                                   getP2pIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getP2pIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::removeP2pIface(const hidl_string& ifname,
-                                      removeP2pIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::removeP2pIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::createStaIface(createStaIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::createStaIfaceInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getStaIfaceNames(getStaIfaceNames_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getStaIfaceNamesInternal, hidl_status_cb);
-}
-
-Return<void> WifiChip::getStaIface(const hidl_string& ifname,
-                                   getStaIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getStaIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::removeStaIface(const hidl_string& ifname,
-                                      removeStaIface_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::removeStaIfaceInternal, hidl_status_cb,
-                           ifname);
-}
-
-Return<void> WifiChip::createRttController(
-    const sp<IWifiIface>& bound_iface, createRttController_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::createRttControllerInternal,
-                           hidl_status_cb, bound_iface);
-}
-
-Return<void> WifiChip::getDebugRingBuffersStatus(
-    getDebugRingBuffersStatus_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getDebugRingBuffersStatusInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::startLoggingToDebugRingBuffer(
-    const hidl_string& ring_name, WifiDebugRingBufferVerboseLevel verbose_level,
-    uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes,
-    startLoggingToDebugRingBuffer_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::startLoggingToDebugRingBufferInternal,
-                           hidl_status_cb, ring_name, verbose_level,
-                           max_interval_in_sec, min_data_size_in_bytes);
-}
-
-Return<void> WifiChip::forceDumpToDebugRingBuffer(
-    const hidl_string& ring_name,
-    forceDumpToDebugRingBuffer_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::forceDumpToDebugRingBufferInternal,
-                           hidl_status_cb, ring_name);
-}
-
-Return<void> WifiChip::stopLoggingToDebugRingBuffer(
-    stopLoggingToDebugRingBuffer_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::stopLoggingToDebugRingBufferInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::getDebugHostWakeReasonStats(
-    getDebugHostWakeReasonStats_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::getDebugHostWakeReasonStatsInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::enableDebugErrorAlerts(
-    bool enable, enableDebugErrorAlerts_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::enableDebugErrorAlertsInternal,
-                           hidl_status_cb, enable);
-}
-
-Return<void> WifiChip::selectTxPowerScenario(
-    V1_1::IWifiChip::TxPowerScenario scenario, selectTxPowerScenario_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::selectTxPowerScenarioInternal,
-                           hidl_status_cb, scenario);
-}
-
-Return<void> WifiChip::resetTxPowerScenario(
-    resetTxPowerScenario_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::resetTxPowerScenarioInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiChip::registerEventCallback_1_2(
-    const sp<IWifiChipEventCallback>& event_callback,
-    registerEventCallback_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-                           &WifiChip::registerEventCallbackInternal_1_2,
-                           hidl_status_cb, event_callback);
-}
-
-Return<void> WifiChip::selectTxPowerScenario_1_2(
-        TxPowerScenario scenario, selectTxPowerScenario_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
-            &WifiChip::selectTxPowerScenarioInternal_1_2, hidl_status_cb, scenario);
-}
-
-Return<void> WifiChip::debug(const hidl_handle& handle,
-                             const hidl_vec<hidl_string>&) {
-    if (handle != nullptr && handle->numFds >= 1) {
-        int fd = handle->data[0];
-        if (!writeRingbufferFilesInternal()) {
-            LOG(ERROR) << "Error writing files to flash";
-        }
-        uint32_t n_error = cpioArchiveFilesInDir(fd, kTombstoneFolderPath);
-        if (n_error != 0) {
-            LOG(ERROR) << n_error << " errors occured in cpio function";
-        }
-        fsync(fd);
-    } else {
-        LOG(ERROR) << "File handle error";
-    }
-    return Void();
-}
-
-void WifiChip::invalidateAndRemoveAllIfaces() {
-    invalidateAndClearAll(ap_ifaces_);
-    invalidateAndClearAll(nan_ifaces_);
-    invalidateAndClearAll(p2p_ifaces_);
-    invalidateAndClearAll(sta_ifaces_);
-    // Since all the ifaces are invalid now, all RTT controller objects
-    // using those ifaces also need to be invalidated.
-    for (const auto& rtt : rtt_controllers_) {
-        rtt->invalidate();
-    }
-    rtt_controllers_.clear();
-}
-
-std::pair<WifiStatus, ChipId> WifiChip::getIdInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), chip_id_};
-}
-
-WifiStatus WifiChip::registerEventCallbackInternal(
-    const sp<V1_0::IWifiChipEventCallback>& /* event_callback */) {
-    // Deprecated support for this callback.
-    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
-}
-
-std::pair<WifiStatus, uint32_t> WifiChip::getCapabilitiesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    uint32_t legacy_feature_set;
-    uint32_t legacy_logger_feature_set;
-    std::tie(legacy_status, legacy_feature_set) =
-        legacy_hal_.lock()->getSupportedFeatureSet(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), 0};
-    }
-    std::tie(legacy_status, legacy_logger_feature_set) =
-        legacy_hal_.lock()->getLoggerSupportedFeatureSet(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        // some devices don't support querying logger feature set
-        legacy_logger_feature_set = 0;
-    }
-    uint32_t hidl_caps;
-    if (!hidl_struct_util::convertLegacyFeaturesToHidlChipCapabilities(
-            legacy_feature_set, legacy_logger_feature_set, &hidl_caps)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), 0};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
-}
-
-std::pair<WifiStatus, std::vector<IWifiChip::ChipMode>>
-WifiChip::getAvailableModesInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), modes_};
-}
-
-WifiStatus WifiChip::configureChipInternal(
-    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock,
-    ChipModeId mode_id) {
-    if (!isValidModeId(mode_id)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    if (mode_id == current_mode_id_) {
-        LOG(DEBUG) << "Already in the specified mode " << mode_id;
-        return createWifiStatus(WifiStatusCode::SUCCESS);
-    }
-    WifiStatus status = handleChipConfiguration(lock, mode_id);
-    if (status.code != WifiStatusCode::SUCCESS) {
-        for (const auto& callback : event_cb_handler_.getCallbacks()) {
-            if (!callback->onChipReconfigureFailure(status).isOk()) {
-                LOG(ERROR)
-                    << "Failed to invoke onChipReconfigureFailure callback";
-            }
-        }
-        return status;
-    }
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onChipReconfigured(mode_id).isOk()) {
-            LOG(ERROR) << "Failed to invoke onChipReconfigured callback";
-        }
-    }
-    current_mode_id_ = mode_id;
-    LOG(INFO) << "Configured chip in mode " << mode_id;
-    return status;
-}
-
-std::pair<WifiStatus, uint32_t> WifiChip::getModeInternal() {
-    if (!isValidModeId(current_mode_id_)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE),
-                current_mode_id_};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), current_mode_id_};
-}
-
-std::pair<WifiStatus, IWifiChip::ChipDebugInfo>
-WifiChip::requestChipDebugInfoInternal() {
-    IWifiChip::ChipDebugInfo result;
-    legacy_hal::wifi_error legacy_status;
-    std::string driver_desc;
-    std::tie(legacy_status, driver_desc) =
-        legacy_hal_.lock()->getDriverVersion(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to get driver version: "
-                   << legacyErrorToString(legacy_status);
-        WifiStatus status = createWifiStatusFromLegacyError(
-            legacy_status, "failed to get driver version");
-        return {status, result};
-    }
-    result.driverDescription = driver_desc.c_str();
-
-    std::string firmware_desc;
-    std::tie(legacy_status, firmware_desc) =
-        legacy_hal_.lock()->getFirmwareVersion(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to get firmware version: "
-                   << legacyErrorToString(legacy_status);
-        WifiStatus status = createWifiStatusFromLegacyError(
-            legacy_status, "failed to get firmware version");
-        return {status, result};
-    }
-    result.firmwareDescription = firmware_desc.c_str();
-
-    return {createWifiStatus(WifiStatusCode::SUCCESS), result};
-}
-
-std::pair<WifiStatus, std::vector<uint8_t>>
-WifiChip::requestDriverDebugDumpInternal() {
-    legacy_hal::wifi_error legacy_status;
-    std::vector<uint8_t> driver_dump;
-    std::tie(legacy_status, driver_dump) =
-        legacy_hal_.lock()->requestDriverMemoryDump(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to get driver debug dump: "
-                   << legacyErrorToString(legacy_status);
-        return {createWifiStatusFromLegacyError(legacy_status),
-                std::vector<uint8_t>()};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), driver_dump};
-}
-
-std::pair<WifiStatus, std::vector<uint8_t>>
-WifiChip::requestFirmwareDebugDumpInternal() {
-    legacy_hal::wifi_error legacy_status;
-    std::vector<uint8_t> firmware_dump;
-    std::tie(legacy_status, firmware_dump) =
-        legacy_hal_.lock()->requestFirmwareMemoryDump(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to get firmware debug dump: "
-                   << legacyErrorToString(legacy_status);
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), firmware_dump};
-}
-
-std::pair<WifiStatus, sp<IWifiApIface>> WifiChip::createApIfaceInternal() {
-    if (!canCurrentModeSupportIfaceOfType(IfaceType::AP)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
-    }
-    std::string ifname = allocateApOrStaIfaceName();
-    sp<WifiApIface> iface = new WifiApIface(ifname, legacy_hal_);
-    ap_ifaces_.push_back(iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceAdded(IfaceType::AP, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
-        }
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-std::pair<WifiStatus, std::vector<hidl_string>>
-WifiChip::getApIfaceNamesInternal() {
-    if (ap_ifaces_.empty()) {
-        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(ap_ifaces_)};
-}
-
-std::pair<WifiStatus, sp<IWifiApIface>> WifiChip::getApIfaceInternal(
-    const std::string& ifname) {
-    const auto iface = findUsingName(ap_ifaces_, ifname);
-    if (!iface.get()) {
-        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-WifiStatus WifiChip::removeApIfaceInternal(const std::string& ifname) {
-    const auto iface = findUsingName(ap_ifaces_, ifname);
-    if (!iface.get()) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    invalidateAndClear(ap_ifaces_, iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceRemoved(IfaceType::AP, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
-        }
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-std::pair<WifiStatus, sp<IWifiNanIface>> WifiChip::createNanIfaceInternal() {
-    if (!canCurrentModeSupportIfaceOfType(IfaceType::NAN)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
-    }
-    // These are still assumed to be based on wlan0.
-    std::string ifname = getWlan0IfaceName();
-    sp<WifiNanIface> iface = new WifiNanIface(ifname, legacy_hal_);
-    nan_ifaces_.push_back(iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceAdded(IfaceType::NAN, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
-        }
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-std::pair<WifiStatus, std::vector<hidl_string>>
-WifiChip::getNanIfaceNamesInternal() {
-    if (nan_ifaces_.empty()) {
-        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(nan_ifaces_)};
-}
-
-std::pair<WifiStatus, sp<IWifiNanIface>> WifiChip::getNanIfaceInternal(
-    const std::string& ifname) {
-    const auto iface = findUsingName(nan_ifaces_, ifname);
-    if (!iface.get()) {
-        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-WifiStatus WifiChip::removeNanIfaceInternal(const std::string& ifname) {
-    const auto iface = findUsingName(nan_ifaces_, ifname);
-    if (!iface.get()) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    invalidateAndClear(nan_ifaces_, iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceRemoved(IfaceType::NAN, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
-        }
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-std::pair<WifiStatus, sp<IWifiP2pIface>> WifiChip::createP2pIfaceInternal() {
-    if (!canCurrentModeSupportIfaceOfType(IfaceType::P2P)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
-    }
-    std::string ifname = getP2pIfaceName();
-    sp<WifiP2pIface> iface = new WifiP2pIface(ifname, legacy_hal_);
-    p2p_ifaces_.push_back(iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceAdded(IfaceType::P2P, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
-        }
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-std::pair<WifiStatus, std::vector<hidl_string>>
-WifiChip::getP2pIfaceNamesInternal() {
-    if (p2p_ifaces_.empty()) {
-        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(p2p_ifaces_)};
-}
-
-std::pair<WifiStatus, sp<IWifiP2pIface>> WifiChip::getP2pIfaceInternal(
-    const std::string& ifname) {
-    const auto iface = findUsingName(p2p_ifaces_, ifname);
-    if (!iface.get()) {
-        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-WifiStatus WifiChip::removeP2pIfaceInternal(const std::string& ifname) {
-    const auto iface = findUsingName(p2p_ifaces_, ifname);
-    if (!iface.get()) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    invalidateAndClear(p2p_ifaces_, iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceRemoved(IfaceType::P2P, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
-        }
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-std::pair<WifiStatus, sp<IWifiStaIface>> WifiChip::createStaIfaceInternal() {
-    if (!canCurrentModeSupportIfaceOfType(IfaceType::STA)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
-    }
-    std::string ifname = allocateApOrStaIfaceName();
-    sp<WifiStaIface> iface = new WifiStaIface(ifname, legacy_hal_);
-    sta_ifaces_.push_back(iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceAdded(IfaceType::STA, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
-        }
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-std::pair<WifiStatus, std::vector<hidl_string>>
-WifiChip::getStaIfaceNamesInternal() {
-    if (sta_ifaces_.empty()) {
-        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(sta_ifaces_)};
-}
-
-std::pair<WifiStatus, sp<IWifiStaIface>> WifiChip::getStaIfaceInternal(
-    const std::string& ifname) {
-    const auto iface = findUsingName(sta_ifaces_, ifname);
-    if (!iface.get()) {
-        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
-}
-
-WifiStatus WifiChip::removeStaIfaceInternal(const std::string& ifname) {
-    const auto iface = findUsingName(sta_ifaces_, ifname);
-    if (!iface.get()) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    invalidateAndClear(sta_ifaces_, iface);
-    for (const auto& callback : event_cb_handler_.getCallbacks()) {
-        if (!callback->onIfaceRemoved(IfaceType::STA, ifname).isOk()) {
-            LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
-        }
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-std::pair<WifiStatus, sp<IWifiRttController>>
-WifiChip::createRttControllerInternal(const sp<IWifiIface>& bound_iface) {
-    sp<WifiRttController> rtt =
-        new WifiRttController(getWlan0IfaceName(), bound_iface, legacy_hal_);
-    rtt_controllers_.emplace_back(rtt);
-    return {createWifiStatus(WifiStatusCode::SUCCESS), rtt};
-}
-
-std::pair<WifiStatus, std::vector<WifiDebugRingBufferStatus>>
-WifiChip::getDebugRingBuffersStatusInternal() {
-    legacy_hal::wifi_error legacy_status;
-    std::vector<legacy_hal::wifi_ring_buffer_status>
-        legacy_ring_buffer_status_vec;
-    std::tie(legacy_status, legacy_ring_buffer_status_vec) =
-        legacy_hal_.lock()->getRingBuffersStatus(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    std::vector<WifiDebugRingBufferStatus> hidl_ring_buffer_status_vec;
-    if (!hidl_struct_util::convertLegacyVectorOfDebugRingBufferStatusToHidl(
-            legacy_ring_buffer_status_vec, &hidl_ring_buffer_status_vec)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS),
-            hidl_ring_buffer_status_vec};
-}
-
-WifiStatus WifiChip::startLoggingToDebugRingBufferInternal(
-    const hidl_string& ring_name, WifiDebugRingBufferVerboseLevel verbose_level,
-    uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes) {
-    WifiStatus status = registerDebugRingBufferCallback();
-    if (status.code != WifiStatusCode::SUCCESS) {
-        return status;
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->startRingBufferLogging(
-            getWlan0IfaceName(), ring_name,
-            static_cast<
-                std::underlying_type<WifiDebugRingBufferVerboseLevel>::type>(
-                verbose_level),
-            max_interval_in_sec, min_data_size_in_bytes);
-    ringbuffer_map_.insert(std::pair<std::string, Ringbuffer>(
-        ring_name, Ringbuffer(kMaxBufferSizeBytes)));
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::forceDumpToDebugRingBufferInternal(
-    const hidl_string& ring_name) {
-    WifiStatus status = registerDebugRingBufferCallback();
-    if (status.code != WifiStatusCode::SUCCESS) {
-        return status;
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->getRingBufferData(getWlan0IfaceName(), ring_name);
-
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::stopLoggingToDebugRingBufferInternal() {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->deregisterRingBufferCallbackHandler(
-            getWlan0IfaceName());
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, WifiDebugHostWakeReasonStats>
-WifiChip::getDebugHostWakeReasonStatsInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::WakeReasonStats legacy_stats;
-    std::tie(legacy_status, legacy_stats) =
-        legacy_hal_.lock()->getWakeReasonStats(getWlan0IfaceName());
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    WifiDebugHostWakeReasonStats hidl_stats;
-    if (!hidl_struct_util::convertLegacyWakeReasonStatsToHidl(legacy_stats,
-                                                              &hidl_stats)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_stats};
-}
-
-WifiStatus WifiChip::enableDebugErrorAlertsInternal(bool enable) {
-    legacy_hal::wifi_error legacy_status;
-    if (enable) {
-        android::wp<WifiChip> weak_ptr_this(this);
-        const auto& on_alert_callback = [weak_ptr_this](
-                                            int32_t error_code,
-                                            std::vector<uint8_t> debug_data) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->onDebugErrorAlert(error_code, debug_data)
-                         .isOk()) {
-                    LOG(ERROR) << "Failed to invoke onDebugErrorAlert callback";
-                }
-            }
-        };
-        legacy_status = legacy_hal_.lock()->registerErrorAlertCallbackHandler(
-            getWlan0IfaceName(), on_alert_callback);
-    } else {
-        legacy_status = legacy_hal_.lock()->deregisterErrorAlertCallbackHandler(
-            getWlan0IfaceName());
-    }
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::selectTxPowerScenarioInternal(
-        V1_1::IWifiChip::TxPowerScenario scenario) {
-    auto legacy_status = legacy_hal_.lock()->selectTxPowerScenario(
-        getWlan0IfaceName(),
-        hidl_struct_util::convertHidlTxPowerScenarioToLegacy(scenario));
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::resetTxPowerScenarioInternal() {
-    auto legacy_status =
-        legacy_hal_.lock()->resetTxPowerScenario(getWlan0IfaceName());
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::registerEventCallbackInternal_1_2(
-    const sp<IWifiChipEventCallback>& event_callback) {
-    if (!event_cb_handler_.addCallback(event_callback)) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus WifiChip::selectTxPowerScenarioInternal_1_2(TxPowerScenario scenario) {
-    auto legacy_status = legacy_hal_.lock()->selectTxPowerScenario(
-        getWlan0IfaceName(),
-        hidl_struct_util::convertHidlTxPowerScenarioToLegacy_1_2(scenario));
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::handleChipConfiguration(
-    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock,
-    ChipModeId mode_id) {
-    // If the chip is already configured in a different mode, stop
-    // the legacy HAL and then start it after firmware mode change.
-    if (isValidModeId(current_mode_id_)) {
-        LOG(INFO) << "Reconfiguring chip from mode " << current_mode_id_
-                  << " to mode " << mode_id;
-        invalidateAndRemoveAllIfaces();
-        legacy_hal::wifi_error legacy_status =
-            legacy_hal_.lock()->stop(lock, []() {});
-        if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-            LOG(ERROR) << "Failed to stop legacy HAL: "
-                       << legacyErrorToString(legacy_status);
-            return createWifiStatusFromLegacyError(legacy_status);
-        }
-    }
-    // Firmware mode change not needed for V2 devices.
-    bool success = true;
-    if (mode_id == kV1StaChipModeId) {
-        success = mode_controller_.lock()->changeFirmwareMode(IfaceType::STA);
-    } else if (mode_id == kV1ApChipModeId) {
-        success = mode_controller_.lock()->changeFirmwareMode(IfaceType::AP);
-    }
-    if (!success) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->start();
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to start legacy HAL: "
-                   << legacyErrorToString(legacy_status);
-        return createWifiStatusFromLegacyError(legacy_status);
-    }
-    // Every time the HAL is restarted, we need to register the
-    // radio mode change callback.
-    WifiStatus status = registerRadioModeChangeCallback();
-    if (status.code != WifiStatusCode::SUCCESS) {
-        // This probably is not a critical failure?
-        LOG(ERROR) << "Failed to register radio mode change callback";
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus WifiChip::registerDebugRingBufferCallback() {
-    if (debug_ring_buffer_cb_registered_) {
-        return createWifiStatus(WifiStatusCode::SUCCESS);
-    }
-
-    android::wp<WifiChip> weak_ptr_this(this);
-    const auto& on_ring_buffer_data_callback =
-        [weak_ptr_this](const std::string& name,
-                        const std::vector<uint8_t>& data,
-                        const legacy_hal::wifi_ring_buffer_status& status) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            WifiDebugRingBufferStatus hidl_status;
-            if (!hidl_struct_util::convertLegacyDebugRingBufferStatusToHidl(
-                    status, &hidl_status)) {
-                LOG(ERROR) << "Error converting ring buffer status";
-                return;
-            }
-            const auto& target = shared_ptr_this->ringbuffer_map_.find(name);
-            if (target != shared_ptr_this->ringbuffer_map_.end()) {
-                Ringbuffer& cur_buffer = target->second;
-                cur_buffer.append(data);
-            } else {
-                LOG(ERROR) << "Ringname " << name << " not found";
-                return;
-            }
-        };
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->registerRingBufferCallbackHandler(
-            getWlan0IfaceName(), on_ring_buffer_data_callback);
-
-    if (legacy_status == legacy_hal::WIFI_SUCCESS) {
-        debug_ring_buffer_cb_registered_ = true;
-    }
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiChip::registerRadioModeChangeCallback() {
-    android::wp<WifiChip> weak_ptr_this(this);
-    const auto& on_radio_mode_change_callback =
-        [weak_ptr_this](const std::vector<legacy_hal::WifiMacInfo>& mac_infos) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            std::vector<IWifiChipEventCallback::RadioModeInfo>
-                hidl_radio_mode_infos;
-            if (!hidl_struct_util::convertLegacyWifiMacInfosToHidl(
-                    mac_infos, &hidl_radio_mode_infos)) {
-                LOG(ERROR) << "Error converting wifi mac info";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->onRadioModeChange(hidl_radio_mode_infos)
-                         .isOk()) {
-                    LOG(ERROR) << "Failed to invoke onRadioModeChange"
-                               << " callback on: " << toString(callback);
-                }
-            }
-        };
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->registerRadioModeChangeCallbackHandler(
-            getWlan0IfaceName(), on_radio_mode_change_callback);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-void WifiChip::populateModes() {
-    // The chip combination supported for current devices is fixed.
-    // They can be one of the following based on device features:
-    // a) 2 separate modes of operation with 1 interface combination each:
-    //    Mode 1 (STA mode): Will support 1 STA and 1 P2P or NAN(optional)
-    //                       concurrent iface operations.
-    //    Mode 2 (AP mode): Will support 1 AP iface operation.
-    //
-    // b) 1 mode of operation with 2 interface combinations
-    // (conditional on isDualInterfaceSupported()):
-    //    Interface Combination 1: Will support 1 STA and 1 P2P or NAN(optional)
-    //                             concurrent iface operations.
-    //    Interface Combination 2: Will support 1 STA and 1 AP concurrent
-    //                             iface operations.
-    // If Aware is enabled (conditional on isAwareSupported()), the iface
-    // combination will be modified to support either P2P or NAN in place of
-    // just P2P.
-    if (feature_flags_.lock()->isDualInterfaceSupported()) {
-        // V2 Iface combinations for Mode Id = 2.
-        const IWifiChip::ChipIfaceCombinationLimit
-            chip_iface_combination_limit_1 = {{IfaceType::STA}, 1};
-        const IWifiChip::ChipIfaceCombinationLimit
-            chip_iface_combination_limit_2 = {{IfaceType::AP}, 1};
-        IWifiChip::ChipIfaceCombinationLimit chip_iface_combination_limit_3;
-        if (feature_flags_.lock()->isAwareSupported()) {
-            chip_iface_combination_limit_3 = {{IfaceType::P2P, IfaceType::NAN},
-                                              1};
-        } else {
-            chip_iface_combination_limit_3 = {{IfaceType::P2P}, 1};
-        }
-        const IWifiChip::ChipIfaceCombination chip_iface_combination_1 = {
-            {chip_iface_combination_limit_1, chip_iface_combination_limit_2}};
-        const IWifiChip::ChipIfaceCombination chip_iface_combination_2 = {
-            {chip_iface_combination_limit_1, chip_iface_combination_limit_3}};
-        if (feature_flags_.lock()->isApDisabled()) {
-          const IWifiChip::ChipMode chip_mode = {
-              kV2ChipModeId,
-              {chip_iface_combination_2}};
-          modes_ = {chip_mode};
-        } else {
-          const IWifiChip::ChipMode chip_mode = {
-            kV2ChipModeId,
-            {chip_iface_combination_1, chip_iface_combination_2}};
-          modes_ = {chip_mode};
-        }
-    } else {
-        // V1 Iface combinations for Mode Id = 0. (STA Mode)
-        const IWifiChip::ChipIfaceCombinationLimit
-            sta_chip_iface_combination_limit_1 = {{IfaceType::STA}, 1};
-        IWifiChip::ChipIfaceCombinationLimit sta_chip_iface_combination_limit_2;
-        if (feature_flags_.lock()->isAwareSupported()) {
-            sta_chip_iface_combination_limit_2 = {
-                {IfaceType::P2P, IfaceType::NAN}, 1};
-        } else {
-            sta_chip_iface_combination_limit_2 = {{IfaceType::P2P}, 1};
-        }
-        const IWifiChip::ChipIfaceCombination sta_chip_iface_combination = {
-            {sta_chip_iface_combination_limit_1,
-             sta_chip_iface_combination_limit_2}};
-        const IWifiChip::ChipMode sta_chip_mode = {
-            kV1StaChipModeId, {sta_chip_iface_combination}};
-        // Iface combinations for Mode Id = 1. (AP Mode)
-        const IWifiChip::ChipIfaceCombinationLimit
-            ap_chip_iface_combination_limit = {{IfaceType::AP}, 1};
-        const IWifiChip::ChipIfaceCombination ap_chip_iface_combination = {
-            {ap_chip_iface_combination_limit}};
-        const IWifiChip::ChipMode ap_chip_mode = {kV1ApChipModeId,
-                                                  {ap_chip_iface_combination}};
-        if (feature_flags_.lock()->isApDisabled()) {
-          modes_ = {sta_chip_mode};
-        } else {
-          modes_ = {sta_chip_mode, ap_chip_mode};
-        }
-    }
-}
-
-std::vector<IWifiChip::ChipIfaceCombination>
-WifiChip::getCurrentModeIfaceCombinations() {
-    if (!isValidModeId(current_mode_id_)) {
-        LOG(ERROR) << "Chip not configured in a mode yet";
-        return {};
-    }
-    for (const auto& mode : modes_) {
-        if (mode.id == current_mode_id_) {
-            return mode.availableCombinations;
-        }
-    }
-    CHECK(0) << "Expected to find iface combinations for current mode!";
-    return {};
-}
-
-// Returns a map indexed by IfaceType with the number of ifaces currently
-// created of the corresponding type.
-std::map<IfaceType, size_t> WifiChip::getCurrentIfaceCombination() {
-    std::map<IfaceType, size_t> iface_counts;
-    iface_counts[IfaceType::AP] = ap_ifaces_.size();
-    iface_counts[IfaceType::NAN] = nan_ifaces_.size();
-    iface_counts[IfaceType::P2P] = p2p_ifaces_.size();
-    iface_counts[IfaceType::STA] = sta_ifaces_.size();
-    return iface_counts;
-}
-
-// This expands the provided iface combinations to a more parseable
-// form. Returns a vector of available combinations possible with the number
-// of ifaces of each type in the combination.
-// This method is a port of HalDeviceManager.expandIfaceCombos() from framework.
-std::vector<std::map<IfaceType, size_t>> WifiChip::expandIfaceCombinations(
-    const IWifiChip::ChipIfaceCombination& combination) {
-    uint32_t num_expanded_combos = 1;
-    for (const auto& limit : combination.limits) {
-        for (uint32_t i = 0; i < limit.maxIfaces; i++) {
-            num_expanded_combos *= limit.types.size();
-        }
-    }
-
-    // Allocate the vector of expanded combos and reset all iface counts to 0
-    // in each combo.
-    std::vector<std::map<IfaceType, size_t>> expanded_combos;
-    expanded_combos.resize(num_expanded_combos);
-    for (auto& expanded_combo : expanded_combos) {
-        for (const auto type :
-             {IfaceType::AP, IfaceType::NAN, IfaceType::P2P, IfaceType::STA}) {
-            expanded_combo[type] = 0;
-        }
-    }
-    uint32_t span = num_expanded_combos;
-    for (const auto& limit : combination.limits) {
-        for (uint32_t i = 0; i < limit.maxIfaces; i++) {
-            span /= limit.types.size();
-            for (uint32_t k = 0; k < num_expanded_combos; ++k) {
-                const auto iface_type =
-                    limit.types[(k / span) % limit.types.size()];
-                expanded_combos[k][iface_type]++;
-            }
-        }
-    }
-    return expanded_combos;
-}
-
-bool WifiChip::canExpandedIfaceCombinationSupportIfaceOfType(
-    const std::map<IfaceType, size_t>& combo, IfaceType requested_type) {
-    const auto current_combo = getCurrentIfaceCombination();
-
-    // Check if we have space for 1 more iface of |type| in this combo
-    for (const auto type :
-         {IfaceType::AP, IfaceType::NAN, IfaceType::P2P, IfaceType::STA}) {
-        size_t num_ifaces_needed = current_combo.at(type);
-        if (type == requested_type) {
-            num_ifaces_needed++;
-        }
-        size_t num_ifaces_allowed = combo.at(type);
-        if (num_ifaces_needed > num_ifaces_allowed) {
-            return false;
-        }
-    }
-    return true;
-}
-
-// This method does the following:
-// a) Enumerate all possible iface combos by expanding the current
-//    ChipIfaceCombination.
-// b) Check if the requested iface type can be added to the current mode.
-bool WifiChip::canCurrentModeSupportIfaceOfType(IfaceType type) {
-    if (!isValidModeId(current_mode_id_)) {
-        LOG(ERROR) << "Chip not configured in a mode yet";
-        return false;
-    }
-    const auto combinations = getCurrentModeIfaceCombinations();
-    for (const auto& combination : combinations) {
-        const auto expanded_combos = expandIfaceCombinations(combination);
-        for (const auto& expanded_combo : expanded_combos) {
-            if (canExpandedIfaceCombinationSupportIfaceOfType(expanded_combo,
-                                                              type)) {
-                return true;
-            }
-        }
-    }
-    return false;
-}
-
-bool WifiChip::isValidModeId(ChipModeId mode_id) {
-    for (const auto& mode : modes_) {
-        if (mode.id == mode_id) {
-            return true;
-        }
-    }
-    return false;
-}
-
-// Return "wlan0", if "wlan0" is not already in use, else return "wlan1".
-// This is based on the assumption that we'll have a max of 2 concurrent
-// AP/STA ifaces.
-std::string WifiChip::allocateApOrStaIfaceName() {
-    auto ap_iface = findUsingName(ap_ifaces_, getWlan0IfaceName());
-    auto sta_iface = findUsingName(sta_ifaces_, getWlan0IfaceName());
-    if (!ap_iface.get() && !sta_iface.get()) {
-        return getWlan0IfaceName();
-    }
-    ap_iface = findUsingName(ap_ifaces_, getWlan1IfaceName());
-    sta_iface = findUsingName(sta_ifaces_, getWlan1IfaceName());
-    if (!ap_iface.get() && !sta_iface.get()) {
-        return getWlan1IfaceName();
-    }
-    // This should never happen. We screwed up somewhere if it did.
-    CHECK(0) << "wlan0 and wlan1 in use already!";
-    return {};
-}
-
-bool WifiChip::writeRingbufferFilesInternal() {
-    if (!removeOldFilesInternal()) {
-        LOG(ERROR) << "Error occurred while deleting old tombstone files";
-        return false;
-    }
-    // write ringbuffers to file
-    for (const auto& item : ringbuffer_map_) {
-        const Ringbuffer& cur_buffer = item.second;
-        if (cur_buffer.getData().empty()) {
-            continue;
-        }
-        const std::string file_path_raw =
-            kTombstoneFolderPath + item.first + "XXXXXXXXXX";
-        const int dump_fd = mkstemp(makeCharVec(file_path_raw).data());
-        if (dump_fd == -1) {
-            LOG(ERROR) << "create file failed: " << strerror(errno);
-            return false;
-        }
-        unique_fd file_auto_closer(dump_fd);
-        for (const auto& cur_block : cur_buffer.getData()) {
-            if (write(dump_fd, cur_block.data(),
-                      sizeof(cur_block[0]) * cur_block.size()) == -1) {
-                LOG(ERROR) << "Error writing to file " << strerror(errno);
-            }
-        }
-    }
-    return true;
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_chip.h b/wifi/1.2/default/wifi_chip.h
deleted file mode 100644
index ada9458..0000000
--- a/wifi/1.2/default/wifi_chip.h
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_CHIP_H_
-#define WIFI_CHIP_H_
-
-#include <list>
-#include <map>
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.2/IWifiChip.h>
-
-#include "hidl_callback_util.h"
-#include "ringbuffer.h"
-#include "wifi_ap_iface.h"
-#include "wifi_feature_flags.h"
-#include "wifi_legacy_hal.h"
-#include "wifi_mode_controller.h"
-#include "wifi_nan_iface.h"
-#include "wifi_p2p_iface.h"
-#include "wifi_rtt_controller.h"
-#include "wifi_sta_iface.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * HIDL interface object used to control a Wifi HAL chip instance.
- * Since there is only a single chip instance used today, there is no
- * identifying handle information stored here.
- */
-class WifiChip : public V1_2::IWifiChip {
-   public:
-    WifiChip(
-        ChipId chip_id,
-        const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
-        const std::weak_ptr<mode_controller::WifiModeController>
-            mode_controller,
-        const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags);
-    // HIDL does not provide a built-in mechanism to let the server invalidate
-    // a HIDL interface object after creation. If any client process holds onto
-    // a reference to the object in their context, any method calls on that
-    // reference will continue to be directed to the server.
-    //
-    // However Wifi HAL needs to control the lifetime of these objects. So, add
-    // a public |invalidate| method to |WifiChip| and it's child objects. This
-    // will be used to mark an object invalid when either:
-    // a) Wifi HAL is stopped, or
-    // b) Wifi Chip is reconfigured.
-    //
-    // All HIDL method implementations should check if the object is still
-    // marked valid before processing them.
-    void invalidate();
-    bool isValid();
-    std::set<sp<IWifiChipEventCallback>> getEventCallbacks();
-
-    // HIDL methods exposed.
-    Return<void> getId(getId_cb hidl_status_cb) override;
-    Return<void> registerEventCallback(
-        const sp<V1_0::IWifiChipEventCallback>& event_callback,
-        registerEventCallback_cb hidl_status_cb) override;
-    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
-    Return<void> getAvailableModes(
-        getAvailableModes_cb hidl_status_cb) override;
-    Return<void> configureChip(ChipModeId mode_id,
-                               configureChip_cb hidl_status_cb) override;
-    Return<void> getMode(getMode_cb hidl_status_cb) override;
-    Return<void> requestChipDebugInfo(
-        requestChipDebugInfo_cb hidl_status_cb) override;
-    Return<void> requestDriverDebugDump(
-        requestDriverDebugDump_cb hidl_status_cb) override;
-    Return<void> requestFirmwareDebugDump(
-        requestFirmwareDebugDump_cb hidl_status_cb) override;
-    Return<void> createApIface(createApIface_cb hidl_status_cb) override;
-    Return<void> getApIfaceNames(getApIfaceNames_cb hidl_status_cb) override;
-    Return<void> getApIface(const hidl_string& ifname,
-                            getApIface_cb hidl_status_cb) override;
-    Return<void> removeApIface(const hidl_string& ifname,
-                               removeApIface_cb hidl_status_cb) override;
-    Return<void> createNanIface(createNanIface_cb hidl_status_cb) override;
-    Return<void> getNanIfaceNames(getNanIfaceNames_cb hidl_status_cb) override;
-    Return<void> getNanIface(const hidl_string& ifname,
-                             getNanIface_cb hidl_status_cb) override;
-    Return<void> removeNanIface(const hidl_string& ifname,
-                                removeNanIface_cb hidl_status_cb) override;
-    Return<void> createP2pIface(createP2pIface_cb hidl_status_cb) override;
-    Return<void> getP2pIfaceNames(getP2pIfaceNames_cb hidl_status_cb) override;
-    Return<void> getP2pIface(const hidl_string& ifname,
-                             getP2pIface_cb hidl_status_cb) override;
-    Return<void> removeP2pIface(const hidl_string& ifname,
-                                removeP2pIface_cb hidl_status_cb) override;
-    Return<void> createStaIface(createStaIface_cb hidl_status_cb) override;
-    Return<void> getStaIfaceNames(getStaIfaceNames_cb hidl_status_cb) override;
-    Return<void> getStaIface(const hidl_string& ifname,
-                             getStaIface_cb hidl_status_cb) override;
-    Return<void> removeStaIface(const hidl_string& ifname,
-                                removeStaIface_cb hidl_status_cb) override;
-    Return<void> createRttController(
-        const sp<IWifiIface>& bound_iface,
-        createRttController_cb hidl_status_cb) override;
-    Return<void> getDebugRingBuffersStatus(
-        getDebugRingBuffersStatus_cb hidl_status_cb) override;
-    Return<void> startLoggingToDebugRingBuffer(
-        const hidl_string& ring_name,
-        WifiDebugRingBufferVerboseLevel verbose_level,
-        uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes,
-        startLoggingToDebugRingBuffer_cb hidl_status_cb) override;
-    Return<void> forceDumpToDebugRingBuffer(
-        const hidl_string& ring_name,
-        forceDumpToDebugRingBuffer_cb hidl_status_cb) override;
-    Return<void> stopLoggingToDebugRingBuffer(
-        stopLoggingToDebugRingBuffer_cb hidl_status_cb) override;
-    Return<void> getDebugHostWakeReasonStats(
-        getDebugHostWakeReasonStats_cb hidl_status_cb) override;
-    Return<void> enableDebugErrorAlerts(
-        bool enable, enableDebugErrorAlerts_cb hidl_status_cb) override;
-    Return<void> selectTxPowerScenario(
-        V1_1::IWifiChip::TxPowerScenario scenario,
-        selectTxPowerScenario_cb hidl_status_cb) override;
-    Return<void> resetTxPowerScenario(
-        resetTxPowerScenario_cb hidl_status_cb) override;
-    Return<void> registerEventCallback_1_2(
-        const sp<IWifiChipEventCallback>& event_callback,
-        registerEventCallback_1_2_cb hidl_status_cb) override;
-    Return<void> selectTxPowerScenario_1_2(
-        TxPowerScenario scenario,
-        selectTxPowerScenario_cb hidl_status_cb) override;
-    Return<void> debug(const hidl_handle& handle,
-                       const hidl_vec<hidl_string>& options) override;
-   private:
-    void invalidateAndRemoveAllIfaces();
-
-    // Corresponding worker functions for the HIDL methods.
-    std::pair<WifiStatus, ChipId> getIdInternal();
-    WifiStatus registerEventCallbackInternal(
-        const sp<V1_0::IWifiChipEventCallback>& event_callback);
-    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal();
-    std::pair<WifiStatus, std::vector<ChipMode>> getAvailableModesInternal();
-    WifiStatus configureChipInternal(
-        std::unique_lock<std::recursive_mutex>* lock, ChipModeId mode_id);
-    std::pair<WifiStatus, uint32_t> getModeInternal();
-    std::pair<WifiStatus, IWifiChip::ChipDebugInfo>
-    requestChipDebugInfoInternal();
-    std::pair<WifiStatus, std::vector<uint8_t>>
-    requestDriverDebugDumpInternal();
-    std::pair<WifiStatus, std::vector<uint8_t>>
-    requestFirmwareDebugDumpInternal();
-    std::pair<WifiStatus, sp<IWifiApIface>> createApIfaceInternal();
-    std::pair<WifiStatus, std::vector<hidl_string>> getApIfaceNamesInternal();
-    std::pair<WifiStatus, sp<IWifiApIface>> getApIfaceInternal(
-        const std::string& ifname);
-    WifiStatus removeApIfaceInternal(const std::string& ifname);
-    std::pair<WifiStatus, sp<IWifiNanIface>> createNanIfaceInternal();
-    std::pair<WifiStatus, std::vector<hidl_string>> getNanIfaceNamesInternal();
-    std::pair<WifiStatus, sp<IWifiNanIface>> getNanIfaceInternal(
-        const std::string& ifname);
-    WifiStatus removeNanIfaceInternal(const std::string& ifname);
-    std::pair<WifiStatus, sp<IWifiP2pIface>> createP2pIfaceInternal();
-    std::pair<WifiStatus, std::vector<hidl_string>> getP2pIfaceNamesInternal();
-    std::pair<WifiStatus, sp<IWifiP2pIface>> getP2pIfaceInternal(
-        const std::string& ifname);
-    WifiStatus removeP2pIfaceInternal(const std::string& ifname);
-    std::pair<WifiStatus, sp<IWifiStaIface>> createStaIfaceInternal();
-    std::pair<WifiStatus, std::vector<hidl_string>> getStaIfaceNamesInternal();
-    std::pair<WifiStatus, sp<IWifiStaIface>> getStaIfaceInternal(
-        const std::string& ifname);
-    WifiStatus removeStaIfaceInternal(const std::string& ifname);
-    std::pair<WifiStatus, sp<IWifiRttController>> createRttControllerInternal(
-        const sp<IWifiIface>& bound_iface);
-    std::pair<WifiStatus, std::vector<WifiDebugRingBufferStatus>>
-    getDebugRingBuffersStatusInternal();
-    WifiStatus startLoggingToDebugRingBufferInternal(
-        const hidl_string& ring_name,
-        WifiDebugRingBufferVerboseLevel verbose_level,
-        uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes);
-    WifiStatus forceDumpToDebugRingBufferInternal(const hidl_string& ring_name);
-    WifiStatus stopLoggingToDebugRingBufferInternal();
-    std::pair<WifiStatus, WifiDebugHostWakeReasonStats>
-    getDebugHostWakeReasonStatsInternal();
-    WifiStatus enableDebugErrorAlertsInternal(bool enable);
-    WifiStatus selectTxPowerScenarioInternal(V1_1::IWifiChip::TxPowerScenario scenario);
-    WifiStatus resetTxPowerScenarioInternal();
-    WifiStatus registerEventCallbackInternal_1_2(
-        const sp<IWifiChipEventCallback>& event_callback);
-    WifiStatus selectTxPowerScenarioInternal_1_2(TxPowerScenario scenario);
-    WifiStatus handleChipConfiguration(
-        std::unique_lock<std::recursive_mutex>* lock, ChipModeId mode_id);
-    WifiStatus registerDebugRingBufferCallback();
-    WifiStatus registerRadioModeChangeCallback();
-
-    void populateModes();
-    std::vector<IWifiChip::ChipIfaceCombination>
-    getCurrentModeIfaceCombinations();
-    std::map<IfaceType, size_t> getCurrentIfaceCombination();
-    std::vector<std::map<IfaceType, size_t>> expandIfaceCombinations(
-        const IWifiChip::ChipIfaceCombination& combination);
-    bool canExpandedIfaceCombinationSupportIfaceOfType(
-        const std::map<IfaceType, size_t>& combo, IfaceType type);
-    bool canCurrentModeSupportIfaceOfType(IfaceType type);
-    bool isValidModeId(ChipModeId mode_id);
-    std::string allocateApOrStaIfaceName();
-    bool writeRingbufferFilesInternal();
-
-    ChipId chip_id_;
-    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    std::weak_ptr<mode_controller::WifiModeController> mode_controller_;
-    std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
-    std::vector<sp<WifiApIface>> ap_ifaces_;
-    std::vector<sp<WifiNanIface>> nan_ifaces_;
-    std::vector<sp<WifiP2pIface>> p2p_ifaces_;
-    std::vector<sp<WifiStaIface>> sta_ifaces_;
-    std::vector<sp<WifiRttController>> rtt_controllers_;
-    std::map<std::string, Ringbuffer> ringbuffer_map_;
-    bool is_valid_;
-    // Members pertaining to chip configuration.
-    uint32_t current_mode_id_;
-    std::vector<IWifiChip::ChipMode> modes_;
-    // The legacy ring buffer callback API has only a global callback
-    // registration mechanism. Use this to check if we have already
-    // registered a callback.
-    bool debug_ring_buffer_cb_registered_;
-    hidl_callback_util::HidlCallbackHandler<IWifiChipEventCallback>
-        event_cb_handler_;
-
-    DISALLOW_COPY_AND_ASSIGN(WifiChip);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_CHIP_H_
diff --git a/wifi/1.2/default/wifi_feature_flags.cpp b/wifi/1.2/default/wifi_feature_flags.cpp
deleted file mode 100644
index 778944d..0000000
--- a/wifi/1.2/default/wifi_feature_flags.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "wifi_feature_flags.h"
-
-namespace {
-#ifdef WIFI_HIDL_FEATURE_AWARE
-static const bool wifiHidlFeatureAware = true;
-#else
-static const bool wifiHidlFeatureAware = false;
-#endif  // WIFI_HIDL_FEATURE_AWARE
-#ifdef WIFI_HIDL_FEATURE_DUAL_INTERFACE
-static const bool wifiHidlFeatureDualInterface = true;
-#else
-static const bool wifiHidlFeatureDualInterface = false;
-#endif  // WIFI_HIDL_FEATURE_DUAL_INTERFACE
-#ifdef WIFI_HIDL_FEATURE_DISABLE_AP
-static const bool wifiHidlFeatureDisableAp = true;
-#else
-static const bool wifiHidlFeatureDisableAp = false;
-#endif  // WIFI_HIDL_FEATURE_DISABLE_AP
-
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace feature_flags {
-
-WifiFeatureFlags::WifiFeatureFlags() {}
-bool WifiFeatureFlags::isAwareSupported() { return wifiHidlFeatureAware; }
-bool WifiFeatureFlags::isDualInterfaceSupported() {
-    return wifiHidlFeatureDualInterface;
-}
-bool WifiFeatureFlags::isApDisabled() {
-  return wifiHidlFeatureDisableAp;
-}
-
-}  // namespace feature_flags
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_feature_flags.h b/wifi/1.2/default/wifi_feature_flags.h
deleted file mode 100644
index 4a7b2d2..0000000
--- a/wifi/1.2/default/wifi_feature_flags.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_FEATURE_FLAGS_H_
-#define WIFI_FEATURE_FLAGS_H_
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace feature_flags {
-
-class WifiFeatureFlags {
-   public:
-    WifiFeatureFlags();
-    virtual ~WifiFeatureFlags() = default;
-
-    virtual bool isAwareSupported();
-    virtual bool isDualInterfaceSupported();
-    virtual bool isApDisabled();
-};
-
-}  // namespace feature_flags
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_FEATURE_FLAGS_H_
diff --git a/wifi/1.2/default/wifi_legacy_hal.cpp b/wifi/1.2/default/wifi_legacy_hal.cpp
deleted file mode 100644
index 375204c..0000000
--- a/wifi/1.2/default/wifi_legacy_hal.cpp
+++ /dev/null
@@ -1,1423 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <array>
-#include <chrono>
-
-#include <android-base/logging.h>
-
-#include "hidl_sync_util.h"
-#include "wifi_legacy_hal.h"
-#include "wifi_legacy_hal_stubs.h"
-
-namespace {
-// Constants ported over from the legacy HAL calling code
-// (com_android_server_wifi_WifiNative.cpp). This will all be thrown
-// away when this shim layer is replaced by the real vendor
-// implementation.
-static constexpr uint32_t kMaxVersionStringLength = 256;
-static constexpr uint32_t kMaxCachedGscanResults = 64;
-static constexpr uint32_t kMaxGscanFrequenciesForBand = 64;
-static constexpr uint32_t kLinkLayerStatsDataMpduSizeThreshold = 128;
-static constexpr uint32_t kMaxWakeReasonStatsArraySize = 32;
-static constexpr uint32_t kMaxRingBuffers = 10;
-static constexpr uint32_t kMaxStopCompleteWaitMs = 100;
-
-// Helper function to create a non-const char* for legacy Hal API's.
-std::vector<char> makeCharVec(const std::string& str) {
-    std::vector<char> vec(str.size() + 1);
-    vec.assign(str.begin(), str.end());
-    vec.push_back('\0');
-    return vec;
-}
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace legacy_hal {
-// Legacy HAL functions accept "C" style function pointers, so use global
-// functions to pass to the legacy HAL function and store the corresponding
-// std::function methods to be invoked.
-//
-// Callback to be invoked once |stop| is complete
-std::function<void(wifi_handle handle)> on_stop_complete_internal_callback;
-void onAsyncStopComplete(wifi_handle handle) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_stop_complete_internal_callback) {
-        on_stop_complete_internal_callback(handle);
-        // Invalidate this callback since we don't want this firing again.
-        on_stop_complete_internal_callback = nullptr;
-    }
-}
-
-// Callback to be invoked for driver dump.
-std::function<void(char*, int)> on_driver_memory_dump_internal_callback;
-void onSyncDriverMemoryDump(char* buffer, int buffer_size) {
-    if (on_driver_memory_dump_internal_callback) {
-        on_driver_memory_dump_internal_callback(buffer, buffer_size);
-    }
-}
-
-// Callback to be invoked for firmware dump.
-std::function<void(char*, int)> on_firmware_memory_dump_internal_callback;
-void onSyncFirmwareMemoryDump(char* buffer, int buffer_size) {
-    if (on_firmware_memory_dump_internal_callback) {
-        on_firmware_memory_dump_internal_callback(buffer, buffer_size);
-    }
-}
-
-// Callback to be invoked for Gscan events.
-std::function<void(wifi_request_id, wifi_scan_event)>
-    on_gscan_event_internal_callback;
-void onAsyncGscanEvent(wifi_request_id id, wifi_scan_event event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_gscan_event_internal_callback) {
-        on_gscan_event_internal_callback(id, event);
-    }
-}
-
-// Callback to be invoked for Gscan full results.
-std::function<void(wifi_request_id, wifi_scan_result*, uint32_t)>
-    on_gscan_full_result_internal_callback;
-void onAsyncGscanFullResult(wifi_request_id id, wifi_scan_result* result,
-                            uint32_t buckets_scanned) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_gscan_full_result_internal_callback) {
-        on_gscan_full_result_internal_callback(id, result, buckets_scanned);
-    }
-}
-
-// Callback to be invoked for link layer stats results.
-std::function<void((wifi_request_id, wifi_iface_stat*, int, wifi_radio_stat*))>
-    on_link_layer_stats_result_internal_callback;
-void onSyncLinkLayerStatsResult(wifi_request_id id, wifi_iface_stat* iface_stat,
-                                int num_radios, wifi_radio_stat* radio_stat) {
-    if (on_link_layer_stats_result_internal_callback) {
-        on_link_layer_stats_result_internal_callback(id, iface_stat, num_radios,
-                                                     radio_stat);
-    }
-}
-
-// Callback to be invoked for rssi threshold breach.
-std::function<void((wifi_request_id, uint8_t*, int8_t))>
-    on_rssi_threshold_breached_internal_callback;
-void onAsyncRssiThresholdBreached(wifi_request_id id, uint8_t* bssid,
-                                  int8_t rssi) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_rssi_threshold_breached_internal_callback) {
-        on_rssi_threshold_breached_internal_callback(id, bssid, rssi);
-    }
-}
-
-// Callback to be invoked for ring buffer data indication.
-std::function<void(char*, char*, int, wifi_ring_buffer_status*)>
-    on_ring_buffer_data_internal_callback;
-void onAsyncRingBufferData(char* ring_name, char* buffer, int buffer_size,
-                           wifi_ring_buffer_status* status) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_ring_buffer_data_internal_callback) {
-        on_ring_buffer_data_internal_callback(ring_name, buffer, buffer_size,
-                                              status);
-    }
-}
-
-// Callback to be invoked for error alert indication.
-std::function<void(wifi_request_id, char*, int, int)>
-    on_error_alert_internal_callback;
-void onAsyncErrorAlert(wifi_request_id id, char* buffer, int buffer_size,
-                       int err_code) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_error_alert_internal_callback) {
-        on_error_alert_internal_callback(id, buffer, buffer_size, err_code);
-    }
-}
-
-// Callback to be invoked for radio mode change indication.
-std::function<void(wifi_request_id, uint32_t, wifi_mac_info*)>
-    on_radio_mode_change_internal_callback;
-void onAsyncRadioModeChange(wifi_request_id id, uint32_t num_macs,
-                            wifi_mac_info* mac_infos) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_radio_mode_change_internal_callback) {
-        on_radio_mode_change_internal_callback(id, num_macs, mac_infos);
-    }
-}
-
-// Callback to be invoked for rtt results results.
-std::function<void(wifi_request_id, unsigned num_results,
-                   wifi_rtt_result* rtt_results[])>
-    on_rtt_results_internal_callback;
-void onAsyncRttResults(wifi_request_id id, unsigned num_results,
-                       wifi_rtt_result* rtt_results[]) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_rtt_results_internal_callback) {
-        on_rtt_results_internal_callback(id, num_results, rtt_results);
-        on_rtt_results_internal_callback = nullptr;
-    }
-}
-
-// Callbacks for the various NAN operations.
-// NOTE: These have very little conversions to perform before invoking the user
-// callbacks.
-// So, handle all of them here directly to avoid adding an unnecessary layer.
-std::function<void(transaction_id, const NanResponseMsg&)>
-    on_nan_notify_response_user_callback;
-void onAysncNanNotifyResponse(transaction_id id, NanResponseMsg* msg) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_notify_response_user_callback && msg) {
-        on_nan_notify_response_user_callback(id, *msg);
-    }
-}
-
-std::function<void(const NanPublishRepliedInd&)>
-    on_nan_event_publish_replied_user_callback;
-void onAysncNanEventPublishReplied(NanPublishRepliedInd* /* event */) {
-    LOG(ERROR) << "onAysncNanEventPublishReplied triggered";
-}
-
-std::function<void(const NanPublishTerminatedInd&)>
-    on_nan_event_publish_terminated_user_callback;
-void onAysncNanEventPublishTerminated(NanPublishTerminatedInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_publish_terminated_user_callback && event) {
-        on_nan_event_publish_terminated_user_callback(*event);
-    }
-}
-
-std::function<void(const NanMatchInd&)> on_nan_event_match_user_callback;
-void onAysncNanEventMatch(NanMatchInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_match_user_callback && event) {
-        on_nan_event_match_user_callback(*event);
-    }
-}
-
-std::function<void(const NanMatchExpiredInd&)>
-    on_nan_event_match_expired_user_callback;
-void onAysncNanEventMatchExpired(NanMatchExpiredInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_match_expired_user_callback && event) {
-        on_nan_event_match_expired_user_callback(*event);
-    }
-}
-
-std::function<void(const NanSubscribeTerminatedInd&)>
-    on_nan_event_subscribe_terminated_user_callback;
-void onAysncNanEventSubscribeTerminated(NanSubscribeTerminatedInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_subscribe_terminated_user_callback && event) {
-        on_nan_event_subscribe_terminated_user_callback(*event);
-    }
-}
-
-std::function<void(const NanFollowupInd&)> on_nan_event_followup_user_callback;
-void onAysncNanEventFollowup(NanFollowupInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_followup_user_callback && event) {
-        on_nan_event_followup_user_callback(*event);
-    }
-}
-
-std::function<void(const NanDiscEngEventInd&)>
-    on_nan_event_disc_eng_event_user_callback;
-void onAysncNanEventDiscEngEvent(NanDiscEngEventInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_disc_eng_event_user_callback && event) {
-        on_nan_event_disc_eng_event_user_callback(*event);
-    }
-}
-
-std::function<void(const NanDisabledInd&)> on_nan_event_disabled_user_callback;
-void onAysncNanEventDisabled(NanDisabledInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_disabled_user_callback && event) {
-        on_nan_event_disabled_user_callback(*event);
-    }
-}
-
-std::function<void(const NanTCAInd&)> on_nan_event_tca_user_callback;
-void onAysncNanEventTca(NanTCAInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_tca_user_callback && event) {
-        on_nan_event_tca_user_callback(*event);
-    }
-}
-
-std::function<void(const NanBeaconSdfPayloadInd&)>
-    on_nan_event_beacon_sdf_payload_user_callback;
-void onAysncNanEventBeaconSdfPayload(NanBeaconSdfPayloadInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_beacon_sdf_payload_user_callback && event) {
-        on_nan_event_beacon_sdf_payload_user_callback(*event);
-    }
-}
-
-std::function<void(const NanDataPathRequestInd&)>
-    on_nan_event_data_path_request_user_callback;
-void onAysncNanEventDataPathRequest(NanDataPathRequestInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_data_path_request_user_callback && event) {
-        on_nan_event_data_path_request_user_callback(*event);
-    }
-}
-std::function<void(const NanDataPathConfirmInd&)>
-    on_nan_event_data_path_confirm_user_callback;
-void onAysncNanEventDataPathConfirm(NanDataPathConfirmInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_data_path_confirm_user_callback && event) {
-        on_nan_event_data_path_confirm_user_callback(*event);
-    }
-}
-
-std::function<void(const NanDataPathEndInd&)>
-    on_nan_event_data_path_end_user_callback;
-void onAysncNanEventDataPathEnd(NanDataPathEndInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_data_path_end_user_callback && event) {
-        on_nan_event_data_path_end_user_callback(*event);
-    }
-}
-
-std::function<void(const NanTransmitFollowupInd&)>
-    on_nan_event_transmit_follow_up_user_callback;
-void onAysncNanEventTransmitFollowUp(NanTransmitFollowupInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_transmit_follow_up_user_callback && event) {
-        on_nan_event_transmit_follow_up_user_callback(*event);
-    }
-}
-
-std::function<void(const NanRangeRequestInd&)>
-    on_nan_event_range_request_user_callback;
-void onAysncNanEventRangeRequest(NanRangeRequestInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_range_request_user_callback && event) {
-        on_nan_event_range_request_user_callback(*event);
-    }
-}
-
-std::function<void(const NanRangeReportInd&)>
-    on_nan_event_range_report_user_callback;
-void onAysncNanEventRangeReport(NanRangeReportInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_range_report_user_callback && event) {
-        on_nan_event_range_report_user_callback(*event);
-    }
-}
-
-std::function<void(const NanDataPathScheduleUpdateInd&)>
-    on_nan_event_schedule_update_user_callback;
-void onAsyncNanEventScheduleUpdate(NanDataPathScheduleUpdateInd* event) {
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (on_nan_event_schedule_update_user_callback && event) {
-        on_nan_event_schedule_update_user_callback(*event);
-    }
-}
-// End of the free-standing "C" style callbacks.
-
-WifiLegacyHal::WifiLegacyHal()
-    : global_handle_(nullptr),
-      awaiting_event_loop_termination_(false),
-      is_started_(false) {}
-
-wifi_error WifiLegacyHal::initialize() {
-    LOG(DEBUG) << "Initialize legacy HAL";
-    // TODO: Add back the HAL Tool if we need to. All we need from the HAL tool
-    // for now is this function call which we can directly call.
-    if (!initHalFuncTableWithStubs(&global_func_table_)) {
-        LOG(ERROR)
-            << "Failed to initialize legacy hal function table with stubs";
-        return WIFI_ERROR_UNKNOWN;
-    }
-    wifi_error status = init_wifi_vendor_hal_func_table(&global_func_table_);
-    if (status != WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to initialize legacy hal function table";
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::start() {
-    // Ensure that we're starting in a good state.
-    CHECK(global_func_table_.wifi_initialize && !global_handle_ &&
-          iface_name_to_handle_.empty() && !awaiting_event_loop_termination_);
-    if (is_started_) {
-        LOG(DEBUG) << "Legacy HAL already started";
-        return WIFI_SUCCESS;
-    }
-    LOG(DEBUG) << "Waiting for the driver ready";
-    wifi_error status = global_func_table_.wifi_wait_for_driver_ready();
-    if (status == WIFI_ERROR_TIMED_OUT) {
-        LOG(ERROR) << "Timed out awaiting driver ready";
-        return status;
-    }
-    LOG(DEBUG) << "Starting legacy HAL";
-    if (!iface_tool_.SetWifiUpState(true)) {
-        LOG(ERROR) << "Failed to set WiFi interface up";
-        return WIFI_ERROR_UNKNOWN;
-    }
-    status = global_func_table_.wifi_initialize(&global_handle_);
-    if (status != WIFI_SUCCESS || !global_handle_) {
-        LOG(ERROR) << "Failed to retrieve global handle";
-        return status;
-    }
-    std::thread(&WifiLegacyHal::runEventLoop, this).detach();
-    status = retrieveIfaceHandles();
-    if (status != WIFI_SUCCESS || iface_name_to_handle_.empty()) {
-        LOG(ERROR) << "Failed to retrieve wlan interface handle";
-        return status;
-    }
-    LOG(DEBUG) << "Legacy HAL start complete";
-    is_started_ = true;
-    return WIFI_SUCCESS;
-}
-
-wifi_error WifiLegacyHal::stop(
-    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock,
-    const std::function<void()>& on_stop_complete_user_callback) {
-    if (!is_started_) {
-        LOG(DEBUG) << "Legacy HAL already stopped";
-        on_stop_complete_user_callback();
-        return WIFI_SUCCESS;
-    }
-    LOG(DEBUG) << "Stopping legacy HAL";
-    on_stop_complete_internal_callback = [on_stop_complete_user_callback,
-                                          this](wifi_handle handle) {
-        CHECK_EQ(global_handle_, handle) << "Handle mismatch";
-        LOG(INFO) << "Legacy HAL stop complete callback received";
-        // Invalidate all the internal pointers now that the HAL is
-        // stopped.
-        invalidate();
-        iface_tool_.SetWifiUpState(false);
-        on_stop_complete_user_callback();
-        is_started_ = false;
-    };
-    awaiting_event_loop_termination_ = true;
-    global_func_table_.wifi_cleanup(global_handle_, onAsyncStopComplete);
-    const auto status = stop_wait_cv_.wait_for(
-        *lock, std::chrono::milliseconds(kMaxStopCompleteWaitMs),
-        [this] { return !awaiting_event_loop_termination_; });
-    if (!status) {
-        LOG(ERROR) << "Legacy HAL stop failed or timed out";
-        return WIFI_ERROR_UNKNOWN;
-    }
-    LOG(DEBUG) << "Legacy HAL stop complete";
-    return WIFI_SUCCESS;
-}
-
-std::pair<wifi_error, std::string> WifiLegacyHal::getDriverVersion(
-    const std::string& iface_name) {
-    std::array<char, kMaxVersionStringLength> buffer;
-    buffer.fill(0);
-    wifi_error status = global_func_table_.wifi_get_driver_version(
-        getIfaceHandle(iface_name), buffer.data(), buffer.size());
-    return {status, buffer.data()};
-}
-
-std::pair<wifi_error, std::string> WifiLegacyHal::getFirmwareVersion(
-    const std::string& iface_name) {
-    std::array<char, kMaxVersionStringLength> buffer;
-    buffer.fill(0);
-    wifi_error status = global_func_table_.wifi_get_firmware_version(
-        getIfaceHandle(iface_name), buffer.data(), buffer.size());
-    return {status, buffer.data()};
-}
-
-std::pair<wifi_error, std::vector<uint8_t>>
-WifiLegacyHal::requestDriverMemoryDump(const std::string& iface_name) {
-    std::vector<uint8_t> driver_dump;
-    on_driver_memory_dump_internal_callback = [&driver_dump](char* buffer,
-                                                             int buffer_size) {
-        driver_dump.insert(driver_dump.end(),
-                           reinterpret_cast<uint8_t*>(buffer),
-                           reinterpret_cast<uint8_t*>(buffer) + buffer_size);
-    };
-    wifi_error status = global_func_table_.wifi_get_driver_memory_dump(
-        getIfaceHandle(iface_name), {onSyncDriverMemoryDump});
-    on_driver_memory_dump_internal_callback = nullptr;
-    return {status, std::move(driver_dump)};
-}
-
-std::pair<wifi_error, std::vector<uint8_t>>
-WifiLegacyHal::requestFirmwareMemoryDump(const std::string& iface_name) {
-    std::vector<uint8_t> firmware_dump;
-    on_firmware_memory_dump_internal_callback =
-        [&firmware_dump](char* buffer, int buffer_size) {
-            firmware_dump.insert(
-                firmware_dump.end(), reinterpret_cast<uint8_t*>(buffer),
-                reinterpret_cast<uint8_t*>(buffer) + buffer_size);
-        };
-    wifi_error status = global_func_table_.wifi_get_firmware_memory_dump(
-        getIfaceHandle(iface_name), {onSyncFirmwareMemoryDump});
-    on_firmware_memory_dump_internal_callback = nullptr;
-    return {status, std::move(firmware_dump)};
-}
-
-std::pair<wifi_error, uint32_t> WifiLegacyHal::getSupportedFeatureSet(
-    const std::string& iface_name) {
-    feature_set set;
-    static_assert(sizeof(set) == sizeof(uint32_t),
-                  "Some feature_flags can not be represented in output");
-    wifi_error status = global_func_table_.wifi_get_supported_feature_set(
-        getIfaceHandle(iface_name), &set);
-    return {status, static_cast<uint32_t>(set)};
-}
-
-std::pair<wifi_error, PacketFilterCapabilities>
-WifiLegacyHal::getPacketFilterCapabilities(const std::string& iface_name) {
-    PacketFilterCapabilities caps;
-    wifi_error status = global_func_table_.wifi_get_packet_filter_capabilities(
-        getIfaceHandle(iface_name), &caps.version, &caps.max_len);
-    return {status, caps};
-}
-
-wifi_error WifiLegacyHal::setPacketFilter(const std::string& iface_name,
-                                          const std::vector<uint8_t>& program) {
-    return global_func_table_.wifi_set_packet_filter(
-        getIfaceHandle(iface_name), program.data(), program.size());
-}
-
-std::pair<wifi_error, std::vector<uint8_t>>
-WifiLegacyHal::readApfPacketFilterData(const std::string& iface_name) {
-    PacketFilterCapabilities caps;
-    wifi_error status = global_func_table_.wifi_get_packet_filter_capabilities(
-        getIfaceHandle(iface_name), &caps.version, &caps.max_len);
-    if (status != WIFI_SUCCESS) {
-        return {status, {}};
-    }
-
-    // Size the buffer to read the entire program & work memory.
-    std::vector<uint8_t> buffer(caps.max_len);
-
-    status = global_func_table_.wifi_read_packet_filter(
-        getIfaceHandle(iface_name), /*src_offset=*/0, buffer.data(),
-        buffer.size());
-    return {status, move(buffer)};
-}
-
-std::pair<wifi_error, wifi_gscan_capabilities>
-WifiLegacyHal::getGscanCapabilities(const std::string& iface_name) {
-    wifi_gscan_capabilities caps;
-    wifi_error status = global_func_table_.wifi_get_gscan_capabilities(
-        getIfaceHandle(iface_name), &caps);
-    return {status, caps};
-}
-
-wifi_error WifiLegacyHal::startGscan(
-    const std::string& iface_name, wifi_request_id id,
-    const wifi_scan_cmd_params& params,
-    const std::function<void(wifi_request_id)>& on_failure_user_callback,
-    const on_gscan_results_callback& on_results_user_callback,
-    const on_gscan_full_result_callback& on_full_result_user_callback) {
-    // If there is already an ongoing background scan, reject new scan requests.
-    if (on_gscan_event_internal_callback ||
-        on_gscan_full_result_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-
-    // This callback will be used to either trigger |on_results_user_callback|
-    // or |on_failure_user_callback|.
-    on_gscan_event_internal_callback =
-        [iface_name, on_failure_user_callback, on_results_user_callback, this](
-            wifi_request_id id, wifi_scan_event event) {
-            switch (event) {
-                case WIFI_SCAN_RESULTS_AVAILABLE:
-                case WIFI_SCAN_THRESHOLD_NUM_SCANS:
-                case WIFI_SCAN_THRESHOLD_PERCENT: {
-                    wifi_error status;
-                    std::vector<wifi_cached_scan_results> cached_scan_results;
-                    std::tie(status, cached_scan_results) =
-                        getGscanCachedResults(iface_name);
-                    if (status == WIFI_SUCCESS) {
-                        on_results_user_callback(id, cached_scan_results);
-                        return;
-                    }
-                }
-                // Fall through if failed. Failure to retrieve cached scan
-                // results should trigger a background scan failure.
-                case WIFI_SCAN_FAILED:
-                    on_failure_user_callback(id);
-                    on_gscan_event_internal_callback = nullptr;
-                    on_gscan_full_result_internal_callback = nullptr;
-                    return;
-            }
-            LOG(FATAL) << "Unexpected gscan event received: " << event;
-        };
-
-    on_gscan_full_result_internal_callback = [on_full_result_user_callback](
-                                                 wifi_request_id id,
-                                                 wifi_scan_result* result,
-                                                 uint32_t buckets_scanned) {
-        if (result) {
-            on_full_result_user_callback(id, result, buckets_scanned);
-        }
-    };
-
-    wifi_scan_result_handler handler = {onAsyncGscanFullResult,
-                                        onAsyncGscanEvent};
-    wifi_error status = global_func_table_.wifi_start_gscan(
-        id, getIfaceHandle(iface_name), params, handler);
-    if (status != WIFI_SUCCESS) {
-        on_gscan_event_internal_callback = nullptr;
-        on_gscan_full_result_internal_callback = nullptr;
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::stopGscan(const std::string& iface_name,
-                                    wifi_request_id id) {
-    // If there is no an ongoing background scan, reject stop requests.
-    // TODO(b/32337212): This needs to be handled by the HIDL object because we
-    // need to return the NOT_STARTED error code.
-    if (!on_gscan_event_internal_callback &&
-        !on_gscan_full_result_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    wifi_error status =
-        global_func_table_.wifi_stop_gscan(id, getIfaceHandle(iface_name));
-    // If the request Id is wrong, don't stop the ongoing background scan. Any
-    // other error should be treated as the end of background scan.
-    if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
-        on_gscan_event_internal_callback = nullptr;
-        on_gscan_full_result_internal_callback = nullptr;
-    }
-    return status;
-}
-
-std::pair<wifi_error, std::vector<uint32_t>>
-WifiLegacyHal::getValidFrequenciesForBand(const std::string& iface_name,
-                                          wifi_band band) {
-    static_assert(sizeof(uint32_t) >= sizeof(wifi_channel),
-                  "Wifi Channel cannot be represented in output");
-    std::vector<uint32_t> freqs;
-    freqs.resize(kMaxGscanFrequenciesForBand);
-    int32_t num_freqs = 0;
-    wifi_error status = global_func_table_.wifi_get_valid_channels(
-        getIfaceHandle(iface_name), band, freqs.size(),
-        reinterpret_cast<wifi_channel*>(freqs.data()), &num_freqs);
-    CHECK(num_freqs >= 0 &&
-          static_cast<uint32_t>(num_freqs) <= kMaxGscanFrequenciesForBand);
-    freqs.resize(num_freqs);
-    return {status, std::move(freqs)};
-}
-
-wifi_error WifiLegacyHal::setDfsFlag(const std::string& iface_name,
-                                     bool dfs_on) {
-    return global_func_table_.wifi_set_nodfs_flag(getIfaceHandle(iface_name),
-                                                  dfs_on ? 0 : 1);
-}
-
-wifi_error WifiLegacyHal::enableLinkLayerStats(const std::string& iface_name,
-                                               bool debug) {
-    wifi_link_layer_params params;
-    params.mpdu_size_threshold = kLinkLayerStatsDataMpduSizeThreshold;
-    params.aggressive_statistics_gathering = debug;
-    return global_func_table_.wifi_set_link_stats(getIfaceHandle(iface_name),
-                                                  params);
-}
-
-wifi_error WifiLegacyHal::disableLinkLayerStats(const std::string& iface_name) {
-    // TODO: Do we care about these responses?
-    uint32_t clear_mask_rsp;
-    uint8_t stop_rsp;
-    return global_func_table_.wifi_clear_link_stats(
-        getIfaceHandle(iface_name), 0xFFFFFFFF, &clear_mask_rsp, 1, &stop_rsp);
-}
-
-std::pair<wifi_error, LinkLayerStats> WifiLegacyHal::getLinkLayerStats(
-    const std::string& iface_name) {
-    LinkLayerStats link_stats{};
-    LinkLayerStats* link_stats_ptr = &link_stats;
-
-    on_link_layer_stats_result_internal_callback =
-        [&link_stats_ptr](wifi_request_id /* id */,
-                          wifi_iface_stat* iface_stats_ptr, int num_radios,
-                          wifi_radio_stat* radio_stats_ptr) {
-            if (iface_stats_ptr != nullptr) {
-                link_stats_ptr->iface = *iface_stats_ptr;
-                link_stats_ptr->iface.num_peers = 0;
-            } else {
-                LOG(ERROR) << "Invalid iface stats in link layer stats";
-            }
-            if (num_radios <= 0 || radio_stats_ptr == nullptr) {
-                LOG(ERROR) << "Invalid radio stats in link layer stats";
-                return;
-            }
-            for (int i = 0; i < num_radios; i++) {
-                LinkLayerRadioStats radio;
-                radio.stats = radio_stats_ptr[i];
-                // Copy over the tx level array to the separate vector.
-                if (radio_stats_ptr[i].num_tx_levels > 0 &&
-                    radio_stats_ptr[i].tx_time_per_levels != nullptr) {
-                    radio.tx_time_per_levels.assign(
-                        radio_stats_ptr[i].tx_time_per_levels,
-                        radio_stats_ptr[i].tx_time_per_levels +
-                            radio_stats_ptr[i].num_tx_levels);
-                }
-                radio.stats.num_tx_levels = 0;
-                radio.stats.tx_time_per_levels = nullptr;
-                link_stats_ptr->radios.push_back(radio);
-            }
-        };
-
-    wifi_error status = global_func_table_.wifi_get_link_stats(
-        0, getIfaceHandle(iface_name), {onSyncLinkLayerStatsResult});
-    on_link_layer_stats_result_internal_callback = nullptr;
-    return {status, link_stats};
-}
-
-wifi_error WifiLegacyHal::startRssiMonitoring(
-    const std::string& iface_name, wifi_request_id id, int8_t max_rssi,
-    int8_t min_rssi,
-    const on_rssi_threshold_breached_callback&
-        on_threshold_breached_user_callback) {
-    if (on_rssi_threshold_breached_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    on_rssi_threshold_breached_internal_callback =
-        [on_threshold_breached_user_callback](wifi_request_id id,
-                                              uint8_t* bssid_ptr, int8_t rssi) {
-            if (!bssid_ptr) {
-                return;
-            }
-            std::array<uint8_t, 6> bssid_arr;
-            // |bssid_ptr| pointer is assumed to have 6 bytes for the mac
-            // address.
-            std::copy(bssid_ptr, bssid_ptr + 6, std::begin(bssid_arr));
-            on_threshold_breached_user_callback(id, bssid_arr, rssi);
-        };
-    wifi_error status = global_func_table_.wifi_start_rssi_monitoring(
-        id, getIfaceHandle(iface_name), max_rssi, min_rssi,
-        {onAsyncRssiThresholdBreached});
-    if (status != WIFI_SUCCESS) {
-        on_rssi_threshold_breached_internal_callback = nullptr;
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::stopRssiMonitoring(const std::string& iface_name,
-                                             wifi_request_id id) {
-    if (!on_rssi_threshold_breached_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    wifi_error status = global_func_table_.wifi_stop_rssi_monitoring(
-        id, getIfaceHandle(iface_name));
-    // If the request Id is wrong, don't stop the ongoing rssi monitoring. Any
-    // other error should be treated as the end of background scan.
-    if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
-        on_rssi_threshold_breached_internal_callback = nullptr;
-    }
-    return status;
-}
-
-std::pair<wifi_error, wifi_roaming_capabilities>
-WifiLegacyHal::getRoamingCapabilities(const std::string& iface_name) {
-    wifi_roaming_capabilities caps;
-    wifi_error status = global_func_table_.wifi_get_roaming_capabilities(
-        getIfaceHandle(iface_name), &caps);
-    return {status, caps};
-}
-
-wifi_error WifiLegacyHal::configureRoaming(const std::string& iface_name,
-                                           const wifi_roaming_config& config) {
-    wifi_roaming_config config_internal = config;
-    return global_func_table_.wifi_configure_roaming(getIfaceHandle(iface_name),
-                                                     &config_internal);
-}
-
-wifi_error WifiLegacyHal::enableFirmwareRoaming(const std::string& iface_name,
-                                                fw_roaming_state_t state) {
-    return global_func_table_.wifi_enable_firmware_roaming(
-        getIfaceHandle(iface_name), state);
-}
-
-wifi_error WifiLegacyHal::configureNdOffload(const std::string& iface_name,
-                                             bool enable) {
-    return global_func_table_.wifi_configure_nd_offload(
-        getIfaceHandle(iface_name), enable);
-}
-
-wifi_error WifiLegacyHal::startSendingOffloadedPacket(
-    const std::string& iface_name, uint32_t cmd_id,
-    const std::vector<uint8_t>& ip_packet_data,
-    const std::array<uint8_t, 6>& src_address,
-    const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms) {
-    std::vector<uint8_t> ip_packet_data_internal(ip_packet_data);
-    std::vector<uint8_t> src_address_internal(
-        src_address.data(), src_address.data() + src_address.size());
-    std::vector<uint8_t> dst_address_internal(
-        dst_address.data(), dst_address.data() + dst_address.size());
-    return global_func_table_.wifi_start_sending_offloaded_packet(
-        cmd_id, getIfaceHandle(iface_name), ip_packet_data_internal.data(),
-        ip_packet_data_internal.size(), src_address_internal.data(),
-        dst_address_internal.data(), period_in_ms);
-}
-
-wifi_error WifiLegacyHal::stopSendingOffloadedPacket(
-    const std::string& iface_name, uint32_t cmd_id) {
-    return global_func_table_.wifi_stop_sending_offloaded_packet(
-        cmd_id, getIfaceHandle(iface_name));
-}
-
-wifi_error WifiLegacyHal::setScanningMacOui(const std::string& iface_name,
-                                            const std::array<uint8_t, 3>& oui) {
-    std::vector<uint8_t> oui_internal(oui.data(), oui.data() + oui.size());
-    return global_func_table_.wifi_set_scanning_mac_oui(
-        getIfaceHandle(iface_name), oui_internal.data());
-}
-
-wifi_error WifiLegacyHal::selectTxPowerScenario(const std::string& iface_name,
-                                                wifi_power_scenario scenario) {
-    return global_func_table_.wifi_select_tx_power_scenario(
-        getIfaceHandle(iface_name), scenario);
-}
-
-wifi_error WifiLegacyHal::resetTxPowerScenario(const std::string& iface_name) {
-    return global_func_table_.wifi_reset_tx_power_scenario(
-        getIfaceHandle(iface_name));
-}
-
-std::pair<wifi_error, uint32_t> WifiLegacyHal::getLoggerSupportedFeatureSet(
-    const std::string& iface_name) {
-    uint32_t supported_feature_flags;
-    wifi_error status =
-        global_func_table_.wifi_get_logger_supported_feature_set(
-            getIfaceHandle(iface_name), &supported_feature_flags);
-    return {status, supported_feature_flags};
-}
-
-wifi_error WifiLegacyHal::startPktFateMonitoring(
-    const std::string& iface_name) {
-    return global_func_table_.wifi_start_pkt_fate_monitoring(
-        getIfaceHandle(iface_name));
-}
-
-std::pair<wifi_error, std::vector<wifi_tx_report>> WifiLegacyHal::getTxPktFates(
-    const std::string& iface_name) {
-    std::vector<wifi_tx_report> tx_pkt_fates;
-    tx_pkt_fates.resize(MAX_FATE_LOG_LEN);
-    size_t num_fates = 0;
-    wifi_error status = global_func_table_.wifi_get_tx_pkt_fates(
-        getIfaceHandle(iface_name), tx_pkt_fates.data(), tx_pkt_fates.size(),
-        &num_fates);
-    CHECK(num_fates <= MAX_FATE_LOG_LEN);
-    tx_pkt_fates.resize(num_fates);
-    return {status, std::move(tx_pkt_fates)};
-}
-
-std::pair<wifi_error, std::vector<wifi_rx_report>> WifiLegacyHal::getRxPktFates(
-    const std::string& iface_name) {
-    std::vector<wifi_rx_report> rx_pkt_fates;
-    rx_pkt_fates.resize(MAX_FATE_LOG_LEN);
-    size_t num_fates = 0;
-    wifi_error status = global_func_table_.wifi_get_rx_pkt_fates(
-        getIfaceHandle(iface_name), rx_pkt_fates.data(), rx_pkt_fates.size(),
-        &num_fates);
-    CHECK(num_fates <= MAX_FATE_LOG_LEN);
-    rx_pkt_fates.resize(num_fates);
-    return {status, std::move(rx_pkt_fates)};
-}
-
-std::pair<wifi_error, WakeReasonStats> WifiLegacyHal::getWakeReasonStats(
-    const std::string& iface_name) {
-    WakeReasonStats stats;
-    stats.cmd_event_wake_cnt.resize(kMaxWakeReasonStatsArraySize);
-    stats.driver_fw_local_wake_cnt.resize(kMaxWakeReasonStatsArraySize);
-
-    // This legacy struct needs separate memory to store the variable sized wake
-    // reason types.
-    stats.wake_reason_cnt.cmd_event_wake_cnt =
-        reinterpret_cast<int32_t*>(stats.cmd_event_wake_cnt.data());
-    stats.wake_reason_cnt.cmd_event_wake_cnt_sz =
-        stats.cmd_event_wake_cnt.size();
-    stats.wake_reason_cnt.cmd_event_wake_cnt_used = 0;
-    stats.wake_reason_cnt.driver_fw_local_wake_cnt =
-        reinterpret_cast<int32_t*>(stats.driver_fw_local_wake_cnt.data());
-    stats.wake_reason_cnt.driver_fw_local_wake_cnt_sz =
-        stats.driver_fw_local_wake_cnt.size();
-    stats.wake_reason_cnt.driver_fw_local_wake_cnt_used = 0;
-
-    wifi_error status = global_func_table_.wifi_get_wake_reason_stats(
-        getIfaceHandle(iface_name), &stats.wake_reason_cnt);
-
-    CHECK(
-        stats.wake_reason_cnt.cmd_event_wake_cnt_used >= 0 &&
-        static_cast<uint32_t>(stats.wake_reason_cnt.cmd_event_wake_cnt_used) <=
-            kMaxWakeReasonStatsArraySize);
-    stats.cmd_event_wake_cnt.resize(
-        stats.wake_reason_cnt.cmd_event_wake_cnt_used);
-    stats.wake_reason_cnt.cmd_event_wake_cnt = nullptr;
-
-    CHECK(stats.wake_reason_cnt.driver_fw_local_wake_cnt_used >= 0 &&
-          static_cast<uint32_t>(
-              stats.wake_reason_cnt.driver_fw_local_wake_cnt_used) <=
-              kMaxWakeReasonStatsArraySize);
-    stats.driver_fw_local_wake_cnt.resize(
-        stats.wake_reason_cnt.driver_fw_local_wake_cnt_used);
-    stats.wake_reason_cnt.driver_fw_local_wake_cnt = nullptr;
-
-    return {status, stats};
-}
-
-wifi_error WifiLegacyHal::registerRingBufferCallbackHandler(
-    const std::string& iface_name,
-    const on_ring_buffer_data_callback& on_user_data_callback) {
-    if (on_ring_buffer_data_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    on_ring_buffer_data_internal_callback =
-        [on_user_data_callback](char* ring_name, char* buffer, int buffer_size,
-                                wifi_ring_buffer_status* status) {
-            if (status && buffer) {
-                std::vector<uint8_t> buffer_vector(
-                    reinterpret_cast<uint8_t*>(buffer),
-                    reinterpret_cast<uint8_t*>(buffer) + buffer_size);
-                on_user_data_callback(ring_name, buffer_vector, *status);
-            }
-        };
-    wifi_error status = global_func_table_.wifi_set_log_handler(
-        0, getIfaceHandle(iface_name), {onAsyncRingBufferData});
-    if (status != WIFI_SUCCESS) {
-        on_ring_buffer_data_internal_callback = nullptr;
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::deregisterRingBufferCallbackHandler(
-    const std::string& iface_name) {
-    if (!on_ring_buffer_data_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    on_ring_buffer_data_internal_callback = nullptr;
-    return global_func_table_.wifi_reset_log_handler(
-        0, getIfaceHandle(iface_name));
-}
-
-std::pair<wifi_error, std::vector<wifi_ring_buffer_status>>
-WifiLegacyHal::getRingBuffersStatus(const std::string& iface_name) {
-    std::vector<wifi_ring_buffer_status> ring_buffers_status;
-    ring_buffers_status.resize(kMaxRingBuffers);
-    uint32_t num_rings = kMaxRingBuffers;
-    wifi_error status = global_func_table_.wifi_get_ring_buffers_status(
-        getIfaceHandle(iface_name), &num_rings, ring_buffers_status.data());
-    CHECK(num_rings <= kMaxRingBuffers);
-    ring_buffers_status.resize(num_rings);
-    return {status, std::move(ring_buffers_status)};
-}
-
-wifi_error WifiLegacyHal::startRingBufferLogging(const std::string& iface_name,
-                                                 const std::string& ring_name,
-                                                 uint32_t verbose_level,
-                                                 uint32_t max_interval_sec,
-                                                 uint32_t min_data_size) {
-    return global_func_table_.wifi_start_logging(
-        getIfaceHandle(iface_name), verbose_level, 0, max_interval_sec,
-        min_data_size, makeCharVec(ring_name).data());
-}
-
-wifi_error WifiLegacyHal::getRingBufferData(const std::string& iface_name,
-                                            const std::string& ring_name) {
-    return global_func_table_.wifi_get_ring_data(getIfaceHandle(iface_name),
-                                                 makeCharVec(ring_name).data());
-}
-
-wifi_error WifiLegacyHal::registerErrorAlertCallbackHandler(
-    const std::string& iface_name,
-    const on_error_alert_callback& on_user_alert_callback) {
-    if (on_error_alert_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    on_error_alert_internal_callback = [on_user_alert_callback](
-                                           wifi_request_id id, char* buffer,
-                                           int buffer_size, int err_code) {
-        if (buffer) {
-            CHECK(id == 0);
-            on_user_alert_callback(
-                err_code,
-                std::vector<uint8_t>(
-                    reinterpret_cast<uint8_t*>(buffer),
-                    reinterpret_cast<uint8_t*>(buffer) + buffer_size));
-        }
-    };
-    wifi_error status = global_func_table_.wifi_set_alert_handler(
-        0, getIfaceHandle(iface_name), {onAsyncErrorAlert});
-    if (status != WIFI_SUCCESS) {
-        on_error_alert_internal_callback = nullptr;
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::deregisterErrorAlertCallbackHandler(
-    const std::string& iface_name) {
-    if (!on_error_alert_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    on_error_alert_internal_callback = nullptr;
-    return global_func_table_.wifi_reset_alert_handler(
-        0, getIfaceHandle(iface_name));
-}
-
-wifi_error WifiLegacyHal::registerRadioModeChangeCallbackHandler(
-    const std::string& iface_name,
-    const on_radio_mode_change_callback& on_user_change_callback) {
-    if (on_radio_mode_change_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    on_radio_mode_change_internal_callback = [on_user_change_callback](
-                                                 wifi_request_id /* id */,
-                                                 uint32_t num_macs,
-                                                 wifi_mac_info* mac_infos_arr) {
-        if (num_macs > 0 && mac_infos_arr) {
-            std::vector<WifiMacInfo> mac_infos_vec;
-            for (uint32_t i = 0; i < num_macs; i++) {
-                WifiMacInfo mac_info;
-                mac_info.wlan_mac_id = mac_infos_arr[i].wlan_mac_id;
-                mac_info.mac_band = mac_infos_arr[i].mac_band;
-                for (int32_t j = 0; j < mac_infos_arr[i].num_iface; j++) {
-                    WifiIfaceInfo iface_info;
-                    iface_info.name = mac_infos_arr[i].iface_info[j].iface_name;
-                    iface_info.channel = mac_infos_arr[i].iface_info[j].channel;
-                    mac_info.iface_infos.push_back(iface_info);
-                }
-                mac_infos_vec.push_back(mac_info);
-            }
-            on_user_change_callback(mac_infos_vec);
-        }
-    };
-    wifi_error status = global_func_table_.wifi_set_radio_mode_change_handler(
-        0, getIfaceHandle(iface_name), {onAsyncRadioModeChange});
-    if (status != WIFI_SUCCESS) {
-        on_radio_mode_change_internal_callback = nullptr;
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::startRttRangeRequest(
-    const std::string& iface_name, wifi_request_id id,
-    const std::vector<wifi_rtt_config>& rtt_configs,
-    const on_rtt_results_callback& on_results_user_callback) {
-    if (on_rtt_results_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-
-    on_rtt_results_internal_callback =
-        [on_results_user_callback](wifi_request_id id, unsigned num_results,
-                                   wifi_rtt_result* rtt_results[]) {
-            if (num_results > 0 && !rtt_results) {
-                LOG(ERROR) << "Unexpected nullptr in RTT results";
-                return;
-            }
-            std::vector<const wifi_rtt_result*> rtt_results_vec;
-            std::copy_if(rtt_results, rtt_results + num_results,
-                         back_inserter(rtt_results_vec),
-                         [](wifi_rtt_result* rtt_result) {
-                             return rtt_result != nullptr;
-                         });
-            on_results_user_callback(id, rtt_results_vec);
-        };
-
-    std::vector<wifi_rtt_config> rtt_configs_internal(rtt_configs);
-    wifi_error status = global_func_table_.wifi_rtt_range_request(
-        id, getIfaceHandle(iface_name), rtt_configs.size(),
-        rtt_configs_internal.data(), {onAsyncRttResults});
-    if (status != WIFI_SUCCESS) {
-        on_rtt_results_internal_callback = nullptr;
-    }
-    return status;
-}
-
-wifi_error WifiLegacyHal::cancelRttRangeRequest(
-    const std::string& iface_name, wifi_request_id id,
-    const std::vector<std::array<uint8_t, 6>>& mac_addrs) {
-    if (!on_rtt_results_internal_callback) {
-        return WIFI_ERROR_NOT_AVAILABLE;
-    }
-    static_assert(sizeof(mac_addr) == sizeof(std::array<uint8_t, 6>),
-                  "MAC address size mismatch");
-    // TODO: How do we handle partial cancels (i.e only a subset of enabled mac
-    // addressed are cancelled).
-    std::vector<std::array<uint8_t, 6>> mac_addrs_internal(mac_addrs);
-    wifi_error status = global_func_table_.wifi_rtt_range_cancel(
-        id, getIfaceHandle(iface_name), mac_addrs.size(),
-        reinterpret_cast<mac_addr*>(mac_addrs_internal.data()));
-    // If the request Id is wrong, don't stop the ongoing range request. Any
-    // other error should be treated as the end of rtt ranging.
-    if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
-        on_rtt_results_internal_callback = nullptr;
-    }
-    return status;
-}
-
-std::pair<wifi_error, wifi_rtt_capabilities> WifiLegacyHal::getRttCapabilities(
-    const std::string& iface_name) {
-    wifi_rtt_capabilities rtt_caps;
-    wifi_error status = global_func_table_.wifi_get_rtt_capabilities(
-        getIfaceHandle(iface_name), &rtt_caps);
-    return {status, rtt_caps};
-}
-
-std::pair<wifi_error, wifi_rtt_responder> WifiLegacyHal::getRttResponderInfo(
-    const std::string& iface_name) {
-    wifi_rtt_responder rtt_responder;
-    wifi_error status = global_func_table_.wifi_rtt_get_responder_info(
-        getIfaceHandle(iface_name), &rtt_responder);
-    return {status, rtt_responder};
-}
-
-wifi_error WifiLegacyHal::enableRttResponder(
-    const std::string& iface_name, wifi_request_id id,
-    const wifi_channel_info& channel_hint, uint32_t max_duration_secs,
-    const wifi_rtt_responder& info) {
-    wifi_rtt_responder info_internal(info);
-    return global_func_table_.wifi_enable_responder(
-        id, getIfaceHandle(iface_name), channel_hint, max_duration_secs,
-        &info_internal);
-}
-
-wifi_error WifiLegacyHal::disableRttResponder(const std::string& iface_name,
-                                              wifi_request_id id) {
-    return global_func_table_.wifi_disable_responder(
-        id, getIfaceHandle(iface_name));
-}
-
-wifi_error WifiLegacyHal::setRttLci(const std::string& iface_name,
-                                    wifi_request_id id,
-                                    const wifi_lci_information& info) {
-    wifi_lci_information info_internal(info);
-    return global_func_table_.wifi_set_lci(id, getIfaceHandle(iface_name),
-                                           &info_internal);
-}
-
-wifi_error WifiLegacyHal::setRttLcr(const std::string& iface_name,
-                                    wifi_request_id id,
-                                    const wifi_lcr_information& info) {
-    wifi_lcr_information info_internal(info);
-    return global_func_table_.wifi_set_lcr(id, getIfaceHandle(iface_name),
-                                           &info_internal);
-}
-
-wifi_error WifiLegacyHal::nanRegisterCallbackHandlers(
-    const std::string& iface_name, const NanCallbackHandlers& user_callbacks) {
-    on_nan_notify_response_user_callback = user_callbacks.on_notify_response;
-    on_nan_event_publish_terminated_user_callback =
-        user_callbacks.on_event_publish_terminated;
-    on_nan_event_match_user_callback = user_callbacks.on_event_match;
-    on_nan_event_match_expired_user_callback =
-        user_callbacks.on_event_match_expired;
-    on_nan_event_subscribe_terminated_user_callback =
-        user_callbacks.on_event_subscribe_terminated;
-    on_nan_event_followup_user_callback = user_callbacks.on_event_followup;
-    on_nan_event_disc_eng_event_user_callback =
-        user_callbacks.on_event_disc_eng_event;
-    on_nan_event_disabled_user_callback = user_callbacks.on_event_disabled;
-    on_nan_event_tca_user_callback = user_callbacks.on_event_tca;
-    on_nan_event_beacon_sdf_payload_user_callback =
-        user_callbacks.on_event_beacon_sdf_payload;
-    on_nan_event_data_path_request_user_callback =
-        user_callbacks.on_event_data_path_request;
-    on_nan_event_data_path_confirm_user_callback =
-        user_callbacks.on_event_data_path_confirm;
-    on_nan_event_data_path_end_user_callback =
-        user_callbacks.on_event_data_path_end;
-    on_nan_event_transmit_follow_up_user_callback =
-        user_callbacks.on_event_transmit_follow_up;
-    on_nan_event_range_request_user_callback =
-        user_callbacks.on_event_range_request;
-    on_nan_event_range_report_user_callback =
-        user_callbacks.on_event_range_report;
-    on_nan_event_schedule_update_user_callback =
-        user_callbacks.on_event_schedule_update;
-
-    return global_func_table_.wifi_nan_register_handler(
-        getIfaceHandle(iface_name),
-        {onAysncNanNotifyResponse, onAysncNanEventPublishReplied,
-         onAysncNanEventPublishTerminated, onAysncNanEventMatch,
-         onAysncNanEventMatchExpired, onAysncNanEventSubscribeTerminated,
-         onAysncNanEventFollowup, onAysncNanEventDiscEngEvent,
-         onAysncNanEventDisabled, onAysncNanEventTca,
-         onAysncNanEventBeaconSdfPayload, onAysncNanEventDataPathRequest,
-         onAysncNanEventDataPathConfirm, onAysncNanEventDataPathEnd,
-         onAysncNanEventTransmitFollowUp, onAysncNanEventRangeRequest,
-         onAysncNanEventRangeReport, onAsyncNanEventScheduleUpdate});
-}
-
-wifi_error WifiLegacyHal::nanEnableRequest(const std::string& iface_name,
-                                           transaction_id id,
-                                           const NanEnableRequest& msg) {
-    NanEnableRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_enable_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanDisableRequest(const std::string& iface_name,
-                                            transaction_id id) {
-    return global_func_table_.wifi_nan_disable_request(
-        id, getIfaceHandle(iface_name));
-}
-
-wifi_error WifiLegacyHal::nanPublishRequest(const std::string& iface_name,
-                                            transaction_id id,
-                                            const NanPublishRequest& msg) {
-    NanPublishRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_publish_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanPublishCancelRequest(
-    const std::string& iface_name, transaction_id id,
-    const NanPublishCancelRequest& msg) {
-    NanPublishCancelRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_publish_cancel_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanSubscribeRequest(const std::string& iface_name,
-                                              transaction_id id,
-                                              const NanSubscribeRequest& msg) {
-    NanSubscribeRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_subscribe_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanSubscribeCancelRequest(
-    const std::string& iface_name, transaction_id id,
-    const NanSubscribeCancelRequest& msg) {
-    NanSubscribeCancelRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_subscribe_cancel_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanTransmitFollowupRequest(
-    const std::string& iface_name, transaction_id id,
-    const NanTransmitFollowupRequest& msg) {
-    NanTransmitFollowupRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_transmit_followup_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanStatsRequest(const std::string& iface_name,
-                                          transaction_id id,
-                                          const NanStatsRequest& msg) {
-    NanStatsRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_stats_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanConfigRequest(const std::string& iface_name,
-                                           transaction_id id,
-                                           const NanConfigRequest& msg) {
-    NanConfigRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_config_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanTcaRequest(const std::string& iface_name,
-                                        transaction_id id,
-                                        const NanTCARequest& msg) {
-    NanTCARequest msg_internal(msg);
-    return global_func_table_.wifi_nan_tca_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanBeaconSdfPayloadRequest(
-    const std::string& iface_name, transaction_id id,
-    const NanBeaconSdfPayloadRequest& msg) {
-    NanBeaconSdfPayloadRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_beacon_sdf_payload_request(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-std::pair<wifi_error, NanVersion> WifiLegacyHal::nanGetVersion() {
-    NanVersion version;
-    wifi_error status =
-        global_func_table_.wifi_nan_get_version(global_handle_, &version);
-    return {status, version};
-}
-
-wifi_error WifiLegacyHal::nanGetCapabilities(const std::string& iface_name,
-                                             transaction_id id) {
-    return global_func_table_.wifi_nan_get_capabilities(
-        id, getIfaceHandle(iface_name));
-}
-
-wifi_error WifiLegacyHal::nanDataInterfaceCreate(
-    const std::string& iface_name, transaction_id id,
-    const std::string& data_iface_name) {
-    return global_func_table_.wifi_nan_data_interface_create(
-        id, getIfaceHandle(iface_name), makeCharVec(data_iface_name).data());
-}
-
-wifi_error WifiLegacyHal::nanDataInterfaceDelete(
-    const std::string& iface_name, transaction_id id,
-    const std::string& data_iface_name) {
-    return global_func_table_.wifi_nan_data_interface_delete(
-        id, getIfaceHandle(iface_name), makeCharVec(data_iface_name).data());
-}
-
-wifi_error WifiLegacyHal::nanDataRequestInitiator(
-    const std::string& iface_name, transaction_id id,
-    const NanDataPathInitiatorRequest& msg) {
-    NanDataPathInitiatorRequest msg_internal(msg);
-    return global_func_table_.wifi_nan_data_request_initiator(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-wifi_error WifiLegacyHal::nanDataIndicationResponse(
-    const std::string& iface_name, transaction_id id,
-    const NanDataPathIndicationResponse& msg) {
-    NanDataPathIndicationResponse msg_internal(msg);
-    return global_func_table_.wifi_nan_data_indication_response(
-        id, getIfaceHandle(iface_name), &msg_internal);
-}
-
-typedef struct {
-    u8 num_ndp_instances;
-    NanDataPathId ndp_instance_id;
-} NanDataPathEndSingleNdpIdRequest;
-
-wifi_error WifiLegacyHal::nanDataEnd(const std::string& iface_name,
-                                     transaction_id id,
-                                     uint32_t ndpInstanceId) {
-    NanDataPathEndSingleNdpIdRequest msg;
-    msg.num_ndp_instances = 1;
-    msg.ndp_instance_id = ndpInstanceId;
-    wifi_error status = global_func_table_.wifi_nan_data_end(
-        id, getIfaceHandle(iface_name), (NanDataPathEndRequest*)&msg);
-    return status;
-}
-
-wifi_error WifiLegacyHal::setCountryCode(const std::string& iface_name,
-                                         std::array<int8_t, 2> code) {
-    std::string code_str(code.data(), code.data() + code.size());
-    return global_func_table_.wifi_set_country_code(getIfaceHandle(iface_name),
-                                                    code_str.c_str());
-}
-
-wifi_error WifiLegacyHal::retrieveIfaceHandles() {
-    wifi_interface_handle* iface_handles = nullptr;
-    int num_iface_handles = 0;
-    wifi_error status = global_func_table_.wifi_get_ifaces(
-        global_handle_, &num_iface_handles, &iface_handles);
-    if (status != WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to enumerate interface handles";
-        return status;
-    }
-    for (int i = 0; i < num_iface_handles; ++i) {
-        std::array<char, IFNAMSIZ> iface_name_arr = {};
-        status = global_func_table_.wifi_get_iface_name(
-            iface_handles[i], iface_name_arr.data(), iface_name_arr.size());
-        if (status != WIFI_SUCCESS) {
-            LOG(WARNING) << "Failed to get interface handle name";
-            continue;
-        }
-        // Assuming the interface name is null terminated since the legacy HAL
-        // API does not return a size.
-        std::string iface_name(iface_name_arr.data());
-        LOG(INFO) << "Adding interface handle for " << iface_name;
-        iface_name_to_handle_[iface_name] = iface_handles[i];
-    }
-    return WIFI_SUCCESS;
-}
-
-wifi_interface_handle WifiLegacyHal::getIfaceHandle(
-    const std::string& iface_name) {
-    const auto iface_handle_iter = iface_name_to_handle_.find(iface_name);
-    if (iface_handle_iter == iface_name_to_handle_.end()) {
-        LOG(ERROR) << "Unknown iface name: " << iface_name;
-        return nullptr;
-    }
-    return iface_handle_iter->second;
-}
-
-void WifiLegacyHal::runEventLoop() {
-    LOG(DEBUG) << "Starting legacy HAL event loop";
-    global_func_table_.wifi_event_loop(global_handle_);
-    const auto lock = hidl_sync_util::acquireGlobalLock();
-    if (!awaiting_event_loop_termination_) {
-        LOG(FATAL)
-            << "Legacy HAL event loop terminated, but HAL was not stopping";
-    }
-    LOG(DEBUG) << "Legacy HAL event loop terminated";
-    awaiting_event_loop_termination_ = false;
-    stop_wait_cv_.notify_one();
-}
-
-std::pair<wifi_error, std::vector<wifi_cached_scan_results>>
-WifiLegacyHal::getGscanCachedResults(const std::string& iface_name) {
-    std::vector<wifi_cached_scan_results> cached_scan_results;
-    cached_scan_results.resize(kMaxCachedGscanResults);
-    int32_t num_results = 0;
-    wifi_error status = global_func_table_.wifi_get_cached_gscan_results(
-        getIfaceHandle(iface_name), true /* always flush */,
-        cached_scan_results.size(), cached_scan_results.data(), &num_results);
-    CHECK(num_results >= 0 &&
-          static_cast<uint32_t>(num_results) <= kMaxCachedGscanResults);
-    cached_scan_results.resize(num_results);
-    // Check for invalid IE lengths in these cached scan results and correct it.
-    for (auto& cached_scan_result : cached_scan_results) {
-        int num_scan_results = cached_scan_result.num_results;
-        for (int i = 0; i < num_scan_results; i++) {
-            auto& scan_result = cached_scan_result.results[i];
-            if (scan_result.ie_length > 0) {
-                LOG(DEBUG) << "Cached scan result has non-zero IE length "
-                           << scan_result.ie_length;
-                scan_result.ie_length = 0;
-            }
-        }
-    }
-    return {status, std::move(cached_scan_results)};
-}
-
-void WifiLegacyHal::invalidate() {
-    global_handle_ = nullptr;
-    iface_name_to_handle_.clear();
-    on_driver_memory_dump_internal_callback = nullptr;
-    on_firmware_memory_dump_internal_callback = nullptr;
-    on_gscan_event_internal_callback = nullptr;
-    on_gscan_full_result_internal_callback = nullptr;
-    on_link_layer_stats_result_internal_callback = nullptr;
-    on_rssi_threshold_breached_internal_callback = nullptr;
-    on_ring_buffer_data_internal_callback = nullptr;
-    on_error_alert_internal_callback = nullptr;
-    on_radio_mode_change_internal_callback = nullptr;
-    on_rtt_results_internal_callback = nullptr;
-    on_nan_notify_response_user_callback = nullptr;
-    on_nan_event_publish_terminated_user_callback = nullptr;
-    on_nan_event_match_user_callback = nullptr;
-    on_nan_event_match_expired_user_callback = nullptr;
-    on_nan_event_subscribe_terminated_user_callback = nullptr;
-    on_nan_event_followup_user_callback = nullptr;
-    on_nan_event_disc_eng_event_user_callback = nullptr;
-    on_nan_event_disabled_user_callback = nullptr;
-    on_nan_event_tca_user_callback = nullptr;
-    on_nan_event_beacon_sdf_payload_user_callback = nullptr;
-    on_nan_event_data_path_request_user_callback = nullptr;
-    on_nan_event_data_path_confirm_user_callback = nullptr;
-    on_nan_event_data_path_end_user_callback = nullptr;
-    on_nan_event_transmit_follow_up_user_callback = nullptr;
-    on_nan_event_range_request_user_callback = nullptr;
-    on_nan_event_range_report_user_callback = nullptr;
-    on_nan_event_schedule_update_user_callback = nullptr;
-}
-
-}  // namespace legacy_hal
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_legacy_hal.h b/wifi/1.2/default/wifi_legacy_hal.h
deleted file mode 100644
index 00dfeef..0000000
--- a/wifi/1.2/default/wifi_legacy_hal.h
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_LEGACY_HAL_H_
-#define WIFI_LEGACY_HAL_H_
-
-#include <condition_variable>
-#include <functional>
-#include <map>
-#include <thread>
-#include <vector>
-
-#include <wifi_system/interface_tool.h>
-
-// HACK: The include inside the namespace below also transitively includes a
-// bunch of libc headers into the namespace, which leads to functions like
-// socketpair being defined in android::hardware::wifi::V1_1::implementation::legacy_hal.
-// Include this one particular header as a hacky workaround until that's fixed.
-#include <sys/socket.h>
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-// This is in a separate namespace to prevent typename conflicts between
-// the legacy HAL types and the HIDL interface types.
-namespace legacy_hal {
-// Wrap all the types defined inside the legacy HAL header files inside this
-// namespace.
-#include <hardware_legacy/wifi_hal.h>
-
-// APF capabilities supported by the iface.
-struct PacketFilterCapabilities {
-    uint32_t version;
-    uint32_t max_len;
-};
-
-// WARNING: We don't care about the variable sized members of either
-// |wifi_iface_stat|, |wifi_radio_stat| structures. So, using the pragma
-// to escape the compiler warnings regarding this.
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wgnu-variable-sized-type-not-at-end"
-// The |wifi_radio_stat.tx_time_per_levels| stats is provided as a pointer in
-// |wifi_radio_stat| structure in the legacy HAL API. Separate that out
-// into a separate return element to avoid passing pointers around.
-struct LinkLayerRadioStats {
-    wifi_radio_stat stats;
-    std::vector<uint32_t> tx_time_per_levels;
-};
-
-struct LinkLayerStats {
-    wifi_iface_stat iface;
-    std::vector<LinkLayerRadioStats> radios;
-};
-#pragma GCC diagnostic pop
-
-// The |WLAN_DRIVER_WAKE_REASON_CNT.cmd_event_wake_cnt| and
-// |WLAN_DRIVER_WAKE_REASON_CNT.driver_fw_local_wake_cnt| stats is provided
-// as a pointer in |WLAN_DRIVER_WAKE_REASON_CNT| structure in the legacy HAL
-// API. Separate that out into a separate return elements to avoid passing
-// pointers around.
-struct WakeReasonStats {
-    WLAN_DRIVER_WAKE_REASON_CNT wake_reason_cnt;
-    std::vector<uint32_t> cmd_event_wake_cnt;
-    std::vector<uint32_t> driver_fw_local_wake_cnt;
-};
-
-// NAN response and event callbacks struct.
-struct NanCallbackHandlers {
-    // NotifyResponse invoked to notify the status of the Request.
-    std::function<void(transaction_id, const NanResponseMsg&)>
-        on_notify_response;
-    // Various event callbacks.
-    std::function<void(const NanPublishTerminatedInd&)>
-        on_event_publish_terminated;
-    std::function<void(const NanMatchInd&)> on_event_match;
-    std::function<void(const NanMatchExpiredInd&)> on_event_match_expired;
-    std::function<void(const NanSubscribeTerminatedInd&)>
-        on_event_subscribe_terminated;
-    std::function<void(const NanFollowupInd&)> on_event_followup;
-    std::function<void(const NanDiscEngEventInd&)> on_event_disc_eng_event;
-    std::function<void(const NanDisabledInd&)> on_event_disabled;
-    std::function<void(const NanTCAInd&)> on_event_tca;
-    std::function<void(const NanBeaconSdfPayloadInd&)>
-        on_event_beacon_sdf_payload;
-    std::function<void(const NanDataPathRequestInd&)>
-        on_event_data_path_request;
-    std::function<void(const NanDataPathConfirmInd&)>
-        on_event_data_path_confirm;
-    std::function<void(const NanDataPathEndInd&)> on_event_data_path_end;
-    std::function<void(const NanTransmitFollowupInd&)>
-        on_event_transmit_follow_up;
-    std::function<void(const NanRangeRequestInd&)> on_event_range_request;
-    std::function<void(const NanRangeReportInd&)> on_event_range_report;
-    std::function<void(const NanDataPathScheduleUpdateInd&)> on_event_schedule_update;
-};
-
-// Full scan results contain IE info and are hence passed by reference, to
-// preserve the variable length array member |ie_data|. Callee must not retain
-// the pointer.
-using on_gscan_full_result_callback =
-    std::function<void(wifi_request_id, const wifi_scan_result*, uint32_t)>;
-// These scan results don't contain any IE info, so no need to pass by
-// reference.
-using on_gscan_results_callback = std::function<void(
-    wifi_request_id, const std::vector<wifi_cached_scan_results>&)>;
-
-// Invoked when the rssi value breaches the thresholds set.
-using on_rssi_threshold_breached_callback =
-    std::function<void(wifi_request_id, std::array<uint8_t, 6>, int8_t)>;
-
-// Callback for RTT range request results.
-// Rtt results contain IE info and are hence passed by reference, to
-// preserve the |LCI| and |LCR| pointers. Callee must not retain
-// the pointer.
-using on_rtt_results_callback = std::function<void(
-    wifi_request_id, const std::vector<const wifi_rtt_result*>&)>;
-
-// Callback for ring buffer data.
-using on_ring_buffer_data_callback =
-    std::function<void(const std::string&, const std::vector<uint8_t>&,
-                       const wifi_ring_buffer_status&)>;
-
-// Callback for alerts.
-using on_error_alert_callback =
-    std::function<void(int32_t, const std::vector<uint8_t>&)>;
-
-// Struct for the mac info from the legacy HAL. This is a cleaner version
-// of the |wifi_mac_info| & |wifi_iface_info|.
-typedef struct {
-    std::string name;
-    wifi_channel channel;
-} WifiIfaceInfo;
-
-typedef struct {
-    uint32_t wlan_mac_id;
-    /* BIT MASK of BIT(WLAN_MAC*) as represented by wlan_mac_band */
-    uint32_t mac_band;
-    /* Represents the connected Wi-Fi interfaces associated with each MAC */
-    std::vector<WifiIfaceInfo> iface_infos;
-} WifiMacInfo;
-
-// Callback for radio mode change
-using on_radio_mode_change_callback =
-    std::function<void(const std::vector<WifiMacInfo>&)>;
-
-/**
- * Class that encapsulates all legacy HAL interactions.
- * This class manages the lifetime of the event loop thread used by legacy HAL.
- *
- * Note: There will only be a single instance of this class created in the Wifi
- * object and will be valid for the lifetime of the process.
- */
-class WifiLegacyHal {
-   public:
-    WifiLegacyHal();
-    virtual ~WifiLegacyHal() = default;
-
-    // Initialize the legacy HAL function table.
-    virtual wifi_error initialize();
-    // Start the legacy HAL and the event looper thread.
-    virtual wifi_error start();
-    // Deinitialize the legacy HAL and wait for the event loop thread to exit
-    // using a predefined timeout.
-    virtual wifi_error stop(std::unique_lock<std::recursive_mutex>* lock,
-                            const std::function<void()>& on_complete_callback);
-    // Wrappers for all the functions in the legacy HAL function table.
-    std::pair<wifi_error, std::string> getDriverVersion(
-        const std::string& iface_name);
-    std::pair<wifi_error, std::string> getFirmwareVersion(
-        const std::string& iface_name);
-    std::pair<wifi_error, std::vector<uint8_t>> requestDriverMemoryDump(
-        const std::string& iface_name);
-    std::pair<wifi_error, std::vector<uint8_t>> requestFirmwareMemoryDump(
-        const std::string& iface_name);
-    std::pair<wifi_error, uint32_t> getSupportedFeatureSet(
-        const std::string& iface_name);
-    // APF functions.
-    std::pair<wifi_error, PacketFilterCapabilities> getPacketFilterCapabilities(
-        const std::string& iface_name);
-    wifi_error setPacketFilter(const std::string& iface_name,
-                               const std::vector<uint8_t>& program);
-    std::pair<wifi_error, std::vector<uint8_t>> readApfPacketFilterData(
-        const std::string& iface_name);
-    // Gscan functions.
-    std::pair<wifi_error, wifi_gscan_capabilities> getGscanCapabilities(
-        const std::string& iface_name);
-    // These API's provides a simplified interface over the legacy Gscan API's:
-    // a) All scan events from the legacy HAL API other than the
-    //    |WIFI_SCAN_FAILED| are treated as notification of results.
-    //    This method then retrieves the cached scan results from the legacy
-    //    HAL API and triggers the externally provided
-    //    |on_results_user_callback| on success.
-    // b) |WIFI_SCAN_FAILED| scan event or failure to retrieve cached scan
-    // results
-    //    triggers the externally provided |on_failure_user_callback|.
-    // c) Full scan result event triggers the externally provided
-    //    |on_full_result_user_callback|.
-    wifi_error startGscan(
-        const std::string& iface_name, wifi_request_id id,
-        const wifi_scan_cmd_params& params,
-        const std::function<void(wifi_request_id)>& on_failure_callback,
-        const on_gscan_results_callback& on_results_callback,
-        const on_gscan_full_result_callback& on_full_result_callback);
-    wifi_error stopGscan(const std::string& iface_name, wifi_request_id id);
-    std::pair<wifi_error, std::vector<uint32_t>> getValidFrequenciesForBand(
-        const std::string& iface_name, wifi_band band);
-    virtual wifi_error setDfsFlag(const std::string& iface_name, bool dfs_on);
-    // Link layer stats functions.
-    wifi_error enableLinkLayerStats(const std::string& iface_name, bool debug);
-    wifi_error disableLinkLayerStats(const std::string& iface_name);
-    std::pair<wifi_error, LinkLayerStats> getLinkLayerStats(
-        const std::string& iface_name);
-    // RSSI monitor functions.
-    wifi_error startRssiMonitoring(const std::string& iface_name,
-                                   wifi_request_id id, int8_t max_rssi,
-                                   int8_t min_rssi,
-                                   const on_rssi_threshold_breached_callback&
-                                       on_threshold_breached_callback);
-    wifi_error stopRssiMonitoring(const std::string& iface_name,
-                                  wifi_request_id id);
-    std::pair<wifi_error, wifi_roaming_capabilities> getRoamingCapabilities(
-        const std::string& iface_name);
-    wifi_error configureRoaming(const std::string& iface_name,
-                                const wifi_roaming_config& config);
-    wifi_error enableFirmwareRoaming(const std::string& iface_name,
-                                     fw_roaming_state_t state);
-    wifi_error configureNdOffload(const std::string& iface_name, bool enable);
-    wifi_error startSendingOffloadedPacket(
-        const std::string& iface_name, uint32_t cmd_id,
-        const std::vector<uint8_t>& ip_packet_data,
-        const std::array<uint8_t, 6>& src_address,
-        const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms);
-    wifi_error stopSendingOffloadedPacket(const std::string& iface_name,
-                                          uint32_t cmd_id);
-    wifi_error setScanningMacOui(const std::string& iface_name,
-                                 const std::array<uint8_t, 3>& oui);
-    wifi_error selectTxPowerScenario(const std::string& iface_name,
-                                     wifi_power_scenario scenario);
-    wifi_error resetTxPowerScenario(const std::string& iface_name);
-    // Logger/debug functions.
-    std::pair<wifi_error, uint32_t> getLoggerSupportedFeatureSet(
-        const std::string& iface_name);
-    wifi_error startPktFateMonitoring(const std::string& iface_name);
-    std::pair<wifi_error, std::vector<wifi_tx_report>> getTxPktFates(
-        const std::string& iface_name);
-    std::pair<wifi_error, std::vector<wifi_rx_report>> getRxPktFates(
-        const std::string& iface_name);
-    std::pair<wifi_error, WakeReasonStats> getWakeReasonStats(
-        const std::string& iface_name);
-    wifi_error registerRingBufferCallbackHandler(
-        const std::string& iface_name,
-        const on_ring_buffer_data_callback& on_data_callback);
-    wifi_error deregisterRingBufferCallbackHandler(
-        const std::string& iface_name);
-    std::pair<wifi_error, std::vector<wifi_ring_buffer_status>>
-    getRingBuffersStatus(const std::string& iface_name);
-    wifi_error startRingBufferLogging(const std::string& iface_name,
-                                      const std::string& ring_name,
-                                      uint32_t verbose_level,
-                                      uint32_t max_interval_sec,
-                                      uint32_t min_data_size);
-    wifi_error getRingBufferData(const std::string& iface_name,
-                                 const std::string& ring_name);
-    wifi_error registerErrorAlertCallbackHandler(
-        const std::string& iface_name,
-        const on_error_alert_callback& on_alert_callback);
-    wifi_error deregisterErrorAlertCallbackHandler(
-        const std::string& iface_name);
-    // Radio mode functions.
-    virtual wifi_error registerRadioModeChangeCallbackHandler(
-        const std::string& iface_name,
-        const on_radio_mode_change_callback& on_user_change_callback);
-    // RTT functions.
-    wifi_error startRttRangeRequest(
-        const std::string& iface_name, wifi_request_id id,
-        const std::vector<wifi_rtt_config>& rtt_configs,
-        const on_rtt_results_callback& on_results_callback);
-    wifi_error cancelRttRangeRequest(
-        const std::string& iface_name, wifi_request_id id,
-        const std::vector<std::array<uint8_t, 6>>& mac_addrs);
-    std::pair<wifi_error, wifi_rtt_capabilities> getRttCapabilities(
-        const std::string& iface_name);
-    std::pair<wifi_error, wifi_rtt_responder> getRttResponderInfo(
-        const std::string& iface_name);
-    wifi_error enableRttResponder(const std::string& iface_name,
-                                  wifi_request_id id,
-                                  const wifi_channel_info& channel_hint,
-                                  uint32_t max_duration_secs,
-                                  const wifi_rtt_responder& info);
-    wifi_error disableRttResponder(const std::string& iface_name,
-                                   wifi_request_id id);
-    wifi_error setRttLci(const std::string& iface_name, wifi_request_id id,
-                         const wifi_lci_information& info);
-    wifi_error setRttLcr(const std::string& iface_name, wifi_request_id id,
-                         const wifi_lcr_information& info);
-    // NAN functions.
-    virtual wifi_error nanRegisterCallbackHandlers(
-        const std::string& iface_name, const NanCallbackHandlers& callbacks);
-    wifi_error nanEnableRequest(const std::string& iface_name,
-                                transaction_id id, const NanEnableRequest& msg);
-    virtual wifi_error nanDisableRequest(const std::string& iface_name,
-                                         transaction_id id);
-    wifi_error nanPublishRequest(const std::string& iface_name,
-                                 transaction_id id,
-                                 const NanPublishRequest& msg);
-    wifi_error nanPublishCancelRequest(const std::string& iface_name,
-                                       transaction_id id,
-                                       const NanPublishCancelRequest& msg);
-    wifi_error nanSubscribeRequest(const std::string& iface_name,
-                                   transaction_id id,
-                                   const NanSubscribeRequest& msg);
-    wifi_error nanSubscribeCancelRequest(const std::string& iface_name,
-                                         transaction_id id,
-                                         const NanSubscribeCancelRequest& msg);
-    wifi_error nanTransmitFollowupRequest(
-        const std::string& iface_name, transaction_id id,
-        const NanTransmitFollowupRequest& msg);
-    wifi_error nanStatsRequest(const std::string& iface_name, transaction_id id,
-                               const NanStatsRequest& msg);
-    wifi_error nanConfigRequest(const std::string& iface_name,
-                                transaction_id id, const NanConfigRequest& msg);
-    wifi_error nanTcaRequest(const std::string& iface_name, transaction_id id,
-                             const NanTCARequest& msg);
-    wifi_error nanBeaconSdfPayloadRequest(
-        const std::string& iface_name, transaction_id id,
-        const NanBeaconSdfPayloadRequest& msg);
-    std::pair<wifi_error, NanVersion> nanGetVersion();
-    wifi_error nanGetCapabilities(const std::string& iface_name,
-                                  transaction_id id);
-    wifi_error nanDataInterfaceCreate(const std::string& iface_name,
-                                      transaction_id id,
-                                      const std::string& data_iface_name);
-    virtual wifi_error nanDataInterfaceDelete(
-        const std::string& iface_name, transaction_id id,
-        const std::string& data_iface_name);
-    wifi_error nanDataRequestInitiator(const std::string& iface_name,
-                                       transaction_id id,
-                                       const NanDataPathInitiatorRequest& msg);
-    wifi_error nanDataIndicationResponse(
-        const std::string& iface_name, transaction_id id,
-        const NanDataPathIndicationResponse& msg);
-    wifi_error nanDataEnd(const std::string& iface_name, transaction_id id,
-                          uint32_t ndpInstanceId);
-    // AP functions.
-    wifi_error setCountryCode(const std::string& iface_name,
-                              std::array<int8_t, 2> code);
-
-   private:
-    // Retrieve interface handles for all the available interfaces.
-    wifi_error retrieveIfaceHandles();
-    wifi_interface_handle getIfaceHandle(const std::string& iface_name);
-    // Run the legacy HAL event loop thread.
-    void runEventLoop();
-    // Retrieve the cached gscan results to pass the results back to the
-    // external callbacks.
-    std::pair<wifi_error, std::vector<wifi_cached_scan_results>>
-    getGscanCachedResults(const std::string& iface_name);
-    void invalidate();
-
-    // Global function table of legacy HAL.
-    wifi_hal_fn global_func_table_;
-    // Opaque handle to be used for all global operations.
-    wifi_handle global_handle_;
-    // Map of interface name to handle that is to be used for all interface
-    // specific operations.
-    std::map<std::string, wifi_interface_handle> iface_name_to_handle_;
-    // Flag to indicate if we have initiated the cleanup of legacy HAL.
-    std::atomic<bool> awaiting_event_loop_termination_;
-    std::condition_variable_any stop_wait_cv_;
-    // Flag to indicate if the legacy HAL has been started.
-    bool is_started_;
-    wifi_system::InterfaceTool iface_tool_;
-};
-
-}  // namespace legacy_hal
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_LEGACY_HAL_H_
diff --git a/wifi/1.2/default/wifi_legacy_hal_stubs.cpp b/wifi/1.2/default/wifi_legacy_hal_stubs.cpp
deleted file mode 100644
index fc28bb5..0000000
--- a/wifi/1.2/default/wifi_legacy_hal_stubs.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "wifi_legacy_hal_stubs.h"
-
-// TODO: Remove these stubs from HalTool in libwifi-system.
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace legacy_hal {
-template <typename>
-struct stubFunction;
-
-template <typename R, typename... Args>
-struct stubFunction<R (*)(Args...)> {
-    static constexpr R invoke(Args...) { return WIFI_ERROR_NOT_SUPPORTED; }
-};
-template <typename... Args>
-struct stubFunction<void (*)(Args...)> {
-    static constexpr void invoke(Args...) {}
-};
-
-template <typename T>
-void populateStubFor(T* val) {
-    *val = &stubFunction<T>::invoke;
-}
-
-bool initHalFuncTableWithStubs(wifi_hal_fn* hal_fn) {
-    if (hal_fn == nullptr) {
-        return false;
-    }
-    populateStubFor(&hal_fn->wifi_initialize);
-    populateStubFor(&hal_fn->wifi_wait_for_driver_ready);
-    populateStubFor(&hal_fn->wifi_cleanup);
-    populateStubFor(&hal_fn->wifi_event_loop);
-    populateStubFor(&hal_fn->wifi_get_error_info);
-    populateStubFor(&hal_fn->wifi_get_supported_feature_set);
-    populateStubFor(&hal_fn->wifi_get_concurrency_matrix);
-    populateStubFor(&hal_fn->wifi_set_scanning_mac_oui);
-    populateStubFor(&hal_fn->wifi_get_supported_channels);
-    populateStubFor(&hal_fn->wifi_is_epr_supported);
-    populateStubFor(&hal_fn->wifi_get_ifaces);
-    populateStubFor(&hal_fn->wifi_get_iface_name);
-    populateStubFor(&hal_fn->wifi_set_iface_event_handler);
-    populateStubFor(&hal_fn->wifi_reset_iface_event_handler);
-    populateStubFor(&hal_fn->wifi_start_gscan);
-    populateStubFor(&hal_fn->wifi_stop_gscan);
-    populateStubFor(&hal_fn->wifi_get_cached_gscan_results);
-    populateStubFor(&hal_fn->wifi_set_bssid_hotlist);
-    populateStubFor(&hal_fn->wifi_reset_bssid_hotlist);
-    populateStubFor(&hal_fn->wifi_set_significant_change_handler);
-    populateStubFor(&hal_fn->wifi_reset_significant_change_handler);
-    populateStubFor(&hal_fn->wifi_get_gscan_capabilities);
-    populateStubFor(&hal_fn->wifi_set_link_stats);
-    populateStubFor(&hal_fn->wifi_get_link_stats);
-    populateStubFor(&hal_fn->wifi_clear_link_stats);
-    populateStubFor(&hal_fn->wifi_get_valid_channels);
-    populateStubFor(&hal_fn->wifi_rtt_range_request);
-    populateStubFor(&hal_fn->wifi_rtt_range_cancel);
-    populateStubFor(&hal_fn->wifi_get_rtt_capabilities);
-    populateStubFor(&hal_fn->wifi_rtt_get_responder_info);
-    populateStubFor(&hal_fn->wifi_enable_responder);
-    populateStubFor(&hal_fn->wifi_disable_responder);
-    populateStubFor(&hal_fn->wifi_set_nodfs_flag);
-    populateStubFor(&hal_fn->wifi_start_logging);
-    populateStubFor(&hal_fn->wifi_set_epno_list);
-    populateStubFor(&hal_fn->wifi_reset_epno_list);
-    populateStubFor(&hal_fn->wifi_set_country_code);
-    populateStubFor(&hal_fn->wifi_get_firmware_memory_dump);
-    populateStubFor(&hal_fn->wifi_set_log_handler);
-    populateStubFor(&hal_fn->wifi_reset_log_handler);
-    populateStubFor(&hal_fn->wifi_set_alert_handler);
-    populateStubFor(&hal_fn->wifi_reset_alert_handler);
-    populateStubFor(&hal_fn->wifi_get_firmware_version);
-    populateStubFor(&hal_fn->wifi_get_ring_buffers_status);
-    populateStubFor(&hal_fn->wifi_get_logger_supported_feature_set);
-    populateStubFor(&hal_fn->wifi_get_ring_data);
-    populateStubFor(&hal_fn->wifi_enable_tdls);
-    populateStubFor(&hal_fn->wifi_disable_tdls);
-    populateStubFor(&hal_fn->wifi_get_tdls_status);
-    populateStubFor(&hal_fn->wifi_get_tdls_capabilities);
-    populateStubFor(&hal_fn->wifi_get_driver_version);
-    populateStubFor(&hal_fn->wifi_set_passpoint_list);
-    populateStubFor(&hal_fn->wifi_reset_passpoint_list);
-    populateStubFor(&hal_fn->wifi_set_lci);
-    populateStubFor(&hal_fn->wifi_set_lcr);
-    populateStubFor(&hal_fn->wifi_start_sending_offloaded_packet);
-    populateStubFor(&hal_fn->wifi_stop_sending_offloaded_packet);
-    populateStubFor(&hal_fn->wifi_start_rssi_monitoring);
-    populateStubFor(&hal_fn->wifi_stop_rssi_monitoring);
-    populateStubFor(&hal_fn->wifi_get_wake_reason_stats);
-    populateStubFor(&hal_fn->wifi_configure_nd_offload);
-    populateStubFor(&hal_fn->wifi_get_driver_memory_dump);
-    populateStubFor(&hal_fn->wifi_start_pkt_fate_monitoring);
-    populateStubFor(&hal_fn->wifi_get_tx_pkt_fates);
-    populateStubFor(&hal_fn->wifi_get_rx_pkt_fates);
-    populateStubFor(&hal_fn->wifi_nan_enable_request);
-    populateStubFor(&hal_fn->wifi_nan_disable_request);
-    populateStubFor(&hal_fn->wifi_nan_publish_request);
-    populateStubFor(&hal_fn->wifi_nan_publish_cancel_request);
-    populateStubFor(&hal_fn->wifi_nan_subscribe_request);
-    populateStubFor(&hal_fn->wifi_nan_subscribe_cancel_request);
-    populateStubFor(&hal_fn->wifi_nan_transmit_followup_request);
-    populateStubFor(&hal_fn->wifi_nan_stats_request);
-    populateStubFor(&hal_fn->wifi_nan_config_request);
-    populateStubFor(&hal_fn->wifi_nan_tca_request);
-    populateStubFor(&hal_fn->wifi_nan_beacon_sdf_payload_request);
-    populateStubFor(&hal_fn->wifi_nan_register_handler);
-    populateStubFor(&hal_fn->wifi_nan_get_version);
-    populateStubFor(&hal_fn->wifi_nan_get_capabilities);
-    populateStubFor(&hal_fn->wifi_nan_data_interface_create);
-    populateStubFor(&hal_fn->wifi_nan_data_interface_delete);
-    populateStubFor(&hal_fn->wifi_nan_data_request_initiator);
-    populateStubFor(&hal_fn->wifi_nan_data_indication_response);
-    populateStubFor(&hal_fn->wifi_nan_data_end);
-    populateStubFor(&hal_fn->wifi_get_packet_filter_capabilities);
-    populateStubFor(&hal_fn->wifi_set_packet_filter);
-    populateStubFor(&hal_fn->wifi_read_packet_filter);
-    populateStubFor(&hal_fn->wifi_get_roaming_capabilities);
-    populateStubFor(&hal_fn->wifi_enable_firmware_roaming);
-    populateStubFor(&hal_fn->wifi_configure_roaming);
-    populateStubFor(&hal_fn->wifi_select_tx_power_scenario);
-    populateStubFor(&hal_fn->wifi_reset_tx_power_scenario);
-    populateStubFor(&hal_fn->wifi_set_radio_mode_change_handler);
-    return true;
-}
-}  // namespace legacy_hal
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_legacy_hal_stubs.h b/wifi/1.2/default/wifi_legacy_hal_stubs.h
deleted file mode 100644
index d560dd4..0000000
--- a/wifi/1.2/default/wifi_legacy_hal_stubs.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_LEGACY_HAL_STUBS_H_
-#define WIFI_LEGACY_HAL_STUBS_H_
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace legacy_hal {
-#include <hardware_legacy/wifi_hal.h>
-
-bool initHalFuncTableWithStubs(wifi_hal_fn* hal_fn);
-}  // namespace legacy_hal
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_LEGACY_HAL_STUBS_H_
diff --git a/wifi/1.2/default/wifi_mode_controller.cpp b/wifi/1.2/default/wifi_mode_controller.cpp
deleted file mode 100644
index c286d24..0000000
--- a/wifi/1.2/default/wifi_mode_controller.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-#include <android-base/macros.h>
-#include <private/android_filesystem_config.h>
-
-#include "wifi_mode_controller.h"
-
-using android::hardware::wifi::V1_0::IfaceType;
-using android::wifi_hal::DriverTool;
-
-namespace {
-int convertIfaceTypeToFirmwareMode(IfaceType type) {
-    int mode;
-    switch (type) {
-        case IfaceType::AP:
-            mode = DriverTool::kFirmwareModeAp;
-            break;
-        case IfaceType::P2P:
-            mode = DriverTool::kFirmwareModeP2p;
-            break;
-        case IfaceType::NAN:
-            // NAN is exposed in STA mode currently.
-            mode = DriverTool::kFirmwareModeSta;
-            break;
-        case IfaceType::STA:
-            mode = DriverTool::kFirmwareModeSta;
-            break;
-    }
-    return mode;
-}
-}  // namespace
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace mode_controller {
-
-WifiModeController::WifiModeController() : driver_tool_(new DriverTool) {}
-
-bool WifiModeController::isFirmwareModeChangeNeeded(IfaceType type) {
-    return driver_tool_->IsFirmwareModeChangeNeeded(
-        convertIfaceTypeToFirmwareMode(type));
-}
-
-bool WifiModeController::initialize() {
-    if (!driver_tool_->LoadDriver()) {
-        LOG(ERROR) << "Failed to load WiFi driver";
-        return false;
-    }
-    return true;
-}
-
-bool WifiModeController::changeFirmwareMode(IfaceType type) {
-    if (!driver_tool_->ChangeFirmwareMode(
-            convertIfaceTypeToFirmwareMode(type))) {
-        LOG(ERROR) << "Failed to change firmware mode";
-        return false;
-    }
-    return true;
-}
-
-bool WifiModeController::deinitialize() {
-    if (!driver_tool_->UnloadDriver()) {
-        LOG(ERROR) << "Failed to unload WiFi driver";
-        return false;
-    }
-    return true;
-}
-}  // namespace mode_controller
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_mode_controller.h b/wifi/1.2/default/wifi_mode_controller.h
deleted file mode 100644
index 395aa5d..0000000
--- a/wifi/1.2/default/wifi_mode_controller.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_MODE_CONTROLLER_H_
-#define WIFI_MODE_CONTROLLER_H_
-
-#include <wifi_hal/driver_tool.h>
-
-#include <android/hardware/wifi/1.0/IWifi.h>
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-namespace mode_controller {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * Class that encapsulates all firmware mode configuration.
- * This class will perform the necessary firmware reloads to put the chip in the
- * required state (essentially a wrapper over DriverTool).
- */
-class WifiModeController {
-   public:
-    WifiModeController();
-    virtual ~WifiModeController() = default;
-
-    // Checks if a firmware mode change is necessary to support the specified
-    // iface type operations.
-    virtual bool isFirmwareModeChangeNeeded(IfaceType type);
-    virtual bool initialize();
-    // Change the firmware mode to support the specified iface type operations.
-    virtual bool changeFirmwareMode(IfaceType type);
-    // Unload the driver. This should be invoked whenever |IWifi.stop()| is
-    // invoked.
-    virtual bool deinitialize();
-
-   private:
-    std::unique_ptr<wifi_hal::DriverTool> driver_tool_;
-};
-
-}  // namespace mode_controller
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_MODE_CONTROLLER_H_
diff --git a/wifi/1.2/default/wifi_nan_iface.cpp b/wifi/1.2/default/wifi_nan_iface.cpp
deleted file mode 100644
index 566d36e..0000000
--- a/wifi/1.2/default/wifi_nan_iface.cpp
+++ /dev/null
@@ -1,863 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "hidl_return_util.h"
-#include "hidl_struct_util.h"
-#include "wifi_nan_iface.h"
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-
-WifiNanIface::WifiNanIface(
-    const std::string& ifname,
-    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
-    : ifname_(ifname), legacy_hal_(legacy_hal), is_valid_(true) {
-    // Register all the callbacks here. these should be valid for the lifetime
-    // of the object. Whenever the mode changes legacy HAL will remove
-    // all of these callbacks.
-    legacy_hal::NanCallbackHandlers callback_handlers;
-    android::wp<WifiNanIface> weak_ptr_this(this);
-
-    // Callback for response.
-    callback_handlers
-        .on_notify_response = [weak_ptr_this](
-                                  legacy_hal::transaction_id id,
-                                  const legacy_hal::NanResponseMsg& msg) {
-        const auto shared_ptr_this = weak_ptr_this.promote();
-        if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-            LOG(ERROR) << "Callback invoked on an invalid object";
-            return;
-        }
-        WifiNanStatus wifiNanStatus;
-        if (!hidl_struct_util::convertLegacyNanResponseHeaderToHidl(
-                msg, &wifiNanStatus)) {
-            LOG(ERROR) << "Failed to convert nan response header";
-            return;
-        }
-
-        switch (msg.response_type) {
-            case legacy_hal::NAN_RESPONSE_ENABLED: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback->notifyEnableResponse(id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_DISABLED: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback->notifyDisableResponse(id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_PUBLISH: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyStartPublishResponse(
-                                 id, wifiNanStatus,
-                                 msg.body.publish_response.publish_id)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_PUBLISH_CANCEL: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback->notifyStopPublishResponse(id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_TRANSMIT_FOLLOWUP: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyTransmitFollowupResponse(id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_SUBSCRIBE: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyStartSubscribeResponse(
-                                 id, wifiNanStatus,
-                                 msg.body.subscribe_response.subscribe_id)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_SUBSCRIBE_CANCEL: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyStopSubscribeResponse(id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_CONFIG: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback->notifyConfigResponse(id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_GET_CAPABILITIES: {
-                NanCapabilities hidl_struct;
-                if (!hidl_struct_util::
-                        convertLegacyNanCapabilitiesResponseToHidl(
-                            msg.body.nan_capabilities, &hidl_struct)) {
-                    LOG(ERROR) << "Failed to convert nan capabilities response";
-                    return;
-                }
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyCapabilitiesResponse(id, wifiNanStatus,
-                                                          hidl_struct)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_DP_INTERFACE_CREATE: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyCreateDataInterfaceResponse(id,
-                                                                 wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_DP_INTERFACE_DELETE: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyDeleteDataInterfaceResponse(id,
-                                                                 wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_DP_INITIATOR_RESPONSE: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyInitiateDataPathResponse(
-                                 id, wifiNanStatus,
-                                 msg.body.data_request_response.ndp_instance_id)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_DP_RESPONDER_RESPONSE: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyRespondToDataPathIndicationResponse(
-                                 id, wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_DP_END: {
-                for (const auto& callback :
-                     shared_ptr_this->getEventCallbacks()) {
-                    if (!callback
-                             ->notifyTerminateDataPathResponse(id,
-                                                               wifiNanStatus)
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-                break;
-            }
-            case legacy_hal::NAN_RESPONSE_BEACON_SDF_PAYLOAD:
-            /* fall through */
-            case legacy_hal::NAN_RESPONSE_TCA:
-            /* fall through */
-            case legacy_hal::NAN_RESPONSE_STATS:
-            /* fall through */
-            case legacy_hal::NAN_RESPONSE_ERROR:
-            /* fall through */
-            default:
-                LOG(ERROR) << "Unknown or unhandled response type: "
-                           << msg.response_type;
-                return;
-        }
-    };
-
-    callback_handlers.on_event_disc_eng_event =
-        [weak_ptr_this](const legacy_hal::NanDiscEngEventInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            NanClusterEventInd hidl_struct;
-            // event types defined identically - hence can be cast
-            hidl_struct.eventType = (NanClusterEventType)msg.event_type;
-            hidl_struct.addr = msg.data.mac_addr.addr;
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventClusterEvent(hidl_struct).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_disabled =
-        [weak_ptr_this](const legacy_hal::NanDisabledInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            WifiNanStatus status;
-            hidl_struct_util::convertToWifiNanStatus(
-                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventDisabled(status).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_publish_terminated =
-        [weak_ptr_this](const legacy_hal::NanPublishTerminatedInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            WifiNanStatus status;
-            hidl_struct_util::convertToWifiNanStatus(
-                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventPublishTerminated(msg.publish_id, status)
-                         .isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_subscribe_terminated =
-        [weak_ptr_this](const legacy_hal::NanSubscribeTerminatedInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            WifiNanStatus status;
-            hidl_struct_util::convertToWifiNanStatus(
-                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback
-                         ->eventSubscribeTerminated(msg.subscribe_id, status)
-                         .isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_match =
-        [weak_ptr_this](const legacy_hal::NanMatchInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            NanMatchInd hidl_struct;
-            if (!hidl_struct_util::convertLegacyNanMatchIndToHidl(
-                    msg, &hidl_struct)) {
-                LOG(ERROR) << "Failed to convert nan capabilities response";
-                return;
-            }
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventMatch(hidl_struct).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_match_expired =
-        [weak_ptr_this](const legacy_hal::NanMatchExpiredInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback
-                         ->eventMatchExpired(msg.publish_subscribe_id,
-                                             msg.requestor_instance_id)
-                         .isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_followup =
-        [weak_ptr_this](const legacy_hal::NanFollowupInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            NanFollowupReceivedInd hidl_struct;
-            if (!hidl_struct_util::convertLegacyNanFollowupIndToHidl(
-                    msg, &hidl_struct)) {
-                LOG(ERROR) << "Failed to convert nan capabilities response";
-                return;
-            }
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventFollowupReceived(hidl_struct).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_transmit_follow_up =
-        [weak_ptr_this](const legacy_hal::NanTransmitFollowupInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            WifiNanStatus status;
-            hidl_struct_util::convertToWifiNanStatus(
-                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventTransmitFollowup(msg.id, status).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_data_path_request =
-        [weak_ptr_this](const legacy_hal::NanDataPathRequestInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            NanDataPathRequestInd hidl_struct;
-            if (!hidl_struct_util::convertLegacyNanDataPathRequestIndToHidl(
-                    msg, &hidl_struct)) {
-                LOG(ERROR) << "Failed to convert nan capabilities response";
-                return;
-            }
-
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->eventDataPathRequest(hidl_struct).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_data_path_confirm =
-        [weak_ptr_this](const legacy_hal::NanDataPathConfirmInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            NanDataPathConfirmInd hidl_struct;
-            if (!hidl_struct_util::convertLegacyNanDataPathConfirmIndToHidl(
-                    msg, &hidl_struct)) {
-                LOG(ERROR) << "Failed to convert nan capabilities response";
-                return;
-            }
-
-            for (const auto& callback :
-                 shared_ptr_this->getEventCallbacks_1_2()) {
-                if (!callback->eventDataPathConfirm_1_2(hidl_struct).isOk()) {
-                    LOG(ERROR) << "Failed to invoke the callback";
-                }
-            }
-        };
-
-    callback_handlers.on_event_data_path_end =
-        [weak_ptr_this](const legacy_hal::NanDataPathEndInd& msg) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                for (int i = 0; i < msg.num_ndp_instances; ++i) {
-                    if (!callback
-                             ->eventDataPathTerminated(msg.ndp_instance_id[i])
-                             .isOk()) {
-                        LOG(ERROR) << "Failed to invoke the callback";
-                    }
-                }
-            }
-        };
-
-    callback_handlers.on_event_beacon_sdf_payload =
-        [weak_ptr_this](const legacy_hal::NanBeaconSdfPayloadInd& /* msg */) {
-            LOG(ERROR) << "on_event_beacon_sdf_payload - should not be called";
-        };
-
-    callback_handlers.on_event_range_request =
-        [weak_ptr_this](const legacy_hal::NanRangeRequestInd& /* msg */) {
-            LOG(ERROR) << "on_event_range_request - should not be called";
-        };
-
-    callback_handlers.on_event_range_report =
-        [weak_ptr_this](const legacy_hal::NanRangeReportInd& /* msg */) {
-            LOG(ERROR) << "on_event_range_report - should not be called";
-        };
-
-    callback_handlers
-        .on_event_schedule_update = [weak_ptr_this](
-                                        const legacy_hal::
-                                            NanDataPathScheduleUpdateInd& msg) {
-        const auto shared_ptr_this = weak_ptr_this.promote();
-        if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-            LOG(ERROR) << "Callback invoked on an invalid object";
-            return;
-        }
-        NanDataPathScheduleUpdateInd hidl_struct;
-        if (!hidl_struct_util::convertLegacyNanDataPathScheduleUpdateIndToHidl(
-                msg, &hidl_struct)) {
-            LOG(ERROR) << "Failed to convert nan capabilities response";
-            return;
-        }
-
-        for (const auto& callback : shared_ptr_this->getEventCallbacks_1_2()) {
-            if (!callback->eventDataPathScheduleUpdate(hidl_struct).isOk()) {
-                LOG(ERROR) << "Failed to invoke the callback";
-            }
-        }
-    };
-
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanRegisterCallbackHandlers(ifname_,
-                                                        callback_handlers);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to register nan callbacks. Invalidating object";
-        invalidate();
-    }
-}
-
-void WifiNanIface::invalidate() {
-    // send commands to HAL to actually disable and destroy interfaces
-    legacy_hal_.lock()->nanDisableRequest(ifname_, 0xFFFF);
-    legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, 0xFFFE, "aware_data0");
-    legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, 0xFFFD, "aware_data1");
-
-    legacy_hal_.reset();
-    event_cb_handler_.invalidate();
-    event_cb_handler_1_2_.invalidate();
-    is_valid_ = false;
-}
-
-bool WifiNanIface::isValid() { return is_valid_; }
-
-std::string WifiNanIface::getName() { return ifname_; }
-
-std::set<sp<V1_0::IWifiNanIfaceEventCallback>>
-WifiNanIface::getEventCallbacks() {
-    return event_cb_handler_.getCallbacks();
-}
-
-std::set<sp<V1_2::IWifiNanIfaceEventCallback>>
-WifiNanIface::getEventCallbacks_1_2() {
-    return event_cb_handler_1_2_.getCallbacks();
-}
-
-Return<void> WifiNanIface::getName(getName_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::getNameInternal, hidl_status_cb);
-}
-
-Return<void> WifiNanIface::getType(getType_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::getTypeInternal, hidl_status_cb);
-}
-
-Return<void> WifiNanIface::registerEventCallback(
-    const sp<V1_0::IWifiNanIfaceEventCallback>& callback,
-    registerEventCallback_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::registerEventCallbackInternal,
-                           hidl_status_cb, callback);
-}
-
-Return<void> WifiNanIface::getCapabilitiesRequest(
-    uint16_t cmd_id, getCapabilitiesRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::getCapabilitiesRequestInternal,
-                           hidl_status_cb, cmd_id);
-}
-
-Return<void> WifiNanIface::enableRequest(uint16_t cmd_id,
-                                         const NanEnableRequest& msg,
-                                         enableRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::enableRequestInternal, hidl_status_cb,
-                           cmd_id, msg);
-}
-
-Return<void> WifiNanIface::configRequest(uint16_t cmd_id,
-                                         const NanConfigRequest& msg,
-                                         configRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::configRequestInternal, hidl_status_cb,
-                           cmd_id, msg);
-}
-
-Return<void> WifiNanIface::disableRequest(uint16_t cmd_id,
-                                          disableRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::disableRequestInternal,
-                           hidl_status_cb, cmd_id);
-}
-
-Return<void> WifiNanIface::startPublishRequest(
-    uint16_t cmd_id, const NanPublishRequest& msg,
-    startPublishRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::startPublishRequestInternal,
-                           hidl_status_cb, cmd_id, msg);
-}
-
-Return<void> WifiNanIface::stopPublishRequest(
-    uint16_t cmd_id, uint8_t sessionId, stopPublishRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::stopPublishRequestInternal,
-                           hidl_status_cb, cmd_id, sessionId);
-}
-
-Return<void> WifiNanIface::startSubscribeRequest(
-    uint16_t cmd_id, const NanSubscribeRequest& msg,
-    startSubscribeRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::startSubscribeRequestInternal,
-                           hidl_status_cb, cmd_id, msg);
-}
-
-Return<void> WifiNanIface::stopSubscribeRequest(
-    uint16_t cmd_id, uint8_t sessionId,
-    stopSubscribeRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::stopSubscribeRequestInternal,
-                           hidl_status_cb, cmd_id, sessionId);
-}
-
-Return<void> WifiNanIface::transmitFollowupRequest(
-    uint16_t cmd_id, const NanTransmitFollowupRequest& msg,
-    transmitFollowupRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::transmitFollowupRequestInternal,
-                           hidl_status_cb, cmd_id, msg);
-}
-
-Return<void> WifiNanIface::createDataInterfaceRequest(
-    uint16_t cmd_id, const hidl_string& iface_name,
-    createDataInterfaceRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::createDataInterfaceRequestInternal,
-                           hidl_status_cb, cmd_id, iface_name);
-}
-
-Return<void> WifiNanIface::deleteDataInterfaceRequest(
-    uint16_t cmd_id, const hidl_string& iface_name,
-    deleteDataInterfaceRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::deleteDataInterfaceRequestInternal,
-                           hidl_status_cb, cmd_id, iface_name);
-}
-
-Return<void> WifiNanIface::initiateDataPathRequest(
-    uint16_t cmd_id, const NanInitiateDataPathRequest& msg,
-    initiateDataPathRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::initiateDataPathRequestInternal,
-                           hidl_status_cb, cmd_id, msg);
-}
-
-Return<void> WifiNanIface::respondToDataPathIndicationRequest(
-    uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg,
-    respondToDataPathIndicationRequest_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-        &WifiNanIface::respondToDataPathIndicationRequestInternal,
-        hidl_status_cb, cmd_id, msg);
-}
-
-Return<void> WifiNanIface::terminateDataPathRequest(
-    uint16_t cmd_id, uint32_t ndpInstanceId,
-    terminateDataPathRequest_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::terminateDataPathRequestInternal,
-                           hidl_status_cb, cmd_id, ndpInstanceId);
-}
-
-Return<void> WifiNanIface::registerEventCallback_1_2(
-    const sp<IWifiNanIfaceEventCallback>& callback,
-    registerEventCallback_1_2_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::registerEventCallback_1_2Internal,
-                           hidl_status_cb, callback);
-}
-
-Return<void> WifiNanIface::enableRequest_1_2(
-    uint16_t cmd_id, const NanEnableRequest& msg1,
-    const NanConfigRequestSupplemental& msg2,
-    enableRequest_1_2_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::enableRequest_1_2Internal,
-                           hidl_status_cb, cmd_id, msg1, msg2);
-}
-
-Return<void> WifiNanIface::configRequest_1_2(
-    uint16_t cmd_id, const NanConfigRequest& msg1,
-    const NanConfigRequestSupplemental& msg2,
-    configRequest_1_2_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiNanIface::configRequest_1_2Internal,
-                           hidl_status_cb, cmd_id, msg1, msg2);
-}
-
-std::pair<WifiStatus, std::string> WifiNanIface::getNameInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
-}
-
-std::pair<WifiStatus, IfaceType> WifiNanIface::getTypeInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::NAN};
-}
-
-WifiStatus WifiNanIface::registerEventCallbackInternal(
-    const sp<V1_0::IWifiNanIfaceEventCallback>& callback) {
-    if (!event_cb_handler_.addCallback(callback)) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus WifiNanIface::getCapabilitiesRequestInternal(uint16_t cmd_id) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanGetCapabilities(ifname_, cmd_id);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::enableRequestInternal(
-    uint16_t /* cmd_id */, const NanEnableRequest& /* msg */) {
-    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
-}
-
-WifiStatus WifiNanIface::configRequestInternal(
-    uint16_t /* cmd_id */, const NanConfigRequest& /* msg */) {
-    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
-}
-
-WifiStatus WifiNanIface::disableRequestInternal(uint16_t cmd_id) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanDisableRequest(ifname_, cmd_id);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::startPublishRequestInternal(
-    uint16_t cmd_id, const NanPublishRequest& msg) {
-    legacy_hal::NanPublishRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanPublishRequestToLegacy(msg,
-                                                                &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanPublishRequest(ifname_, cmd_id, legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::stopPublishRequestInternal(uint16_t cmd_id,
-                                                    uint8_t sessionId) {
-    legacy_hal::NanPublishCancelRequest legacy_msg;
-    legacy_msg.publish_id = sessionId;
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanPublishCancelRequest(ifname_, cmd_id,
-                                                    legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::startSubscribeRequestInternal(
-    uint16_t cmd_id, const NanSubscribeRequest& msg) {
-    legacy_hal::NanSubscribeRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanSubscribeRequestToLegacy(
-            msg, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanSubscribeRequest(ifname_, cmd_id, legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::stopSubscribeRequestInternal(uint16_t cmd_id,
-                                                      uint8_t sessionId) {
-    legacy_hal::NanSubscribeCancelRequest legacy_msg;
-    legacy_msg.subscribe_id = sessionId;
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanSubscribeCancelRequest(ifname_, cmd_id,
-                                                      legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::transmitFollowupRequestInternal(
-    uint16_t cmd_id, const NanTransmitFollowupRequest& msg) {
-    legacy_hal::NanTransmitFollowupRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanTransmitFollowupRequestToLegacy(
-            msg, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanTransmitFollowupRequest(ifname_, cmd_id,
-                                                       legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::createDataInterfaceRequestInternal(
-    uint16_t cmd_id, const std::string& iface_name) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanDataInterfaceCreate(ifname_, cmd_id, iface_name);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-WifiStatus WifiNanIface::deleteDataInterfaceRequestInternal(
-    uint16_t cmd_id, const std::string& iface_name) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, cmd_id, iface_name);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-WifiStatus WifiNanIface::initiateDataPathRequestInternal(
-    uint16_t cmd_id, const NanInitiateDataPathRequest& msg) {
-    legacy_hal::NanDataPathInitiatorRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanDataPathInitiatorRequestToLegacy(
-            msg, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanDataRequestInitiator(ifname_, cmd_id,
-                                                    legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-WifiStatus WifiNanIface::respondToDataPathIndicationRequestInternal(
-    uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg) {
-    legacy_hal::NanDataPathIndicationResponse legacy_msg;
-    if (!hidl_struct_util::convertHidlNanDataPathIndicationResponseToLegacy(
-            msg, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanDataIndicationResponse(ifname_, cmd_id,
-                                                      legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-WifiStatus WifiNanIface::terminateDataPathRequestInternal(
-    uint16_t cmd_id, uint32_t ndpInstanceId) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanDataEnd(ifname_, cmd_id, ndpInstanceId);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::registerEventCallback_1_2Internal(
-    const sp<V1_2::IWifiNanIfaceEventCallback>& callback) {
-    sp<V1_0::IWifiNanIfaceEventCallback> callback_1_0 = callback;
-    if (!event_cb_handler_.addCallback(callback_1_0)) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    if (!event_cb_handler_1_2_.addCallback(callback)) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus WifiNanIface::enableRequest_1_2Internal(
-    uint16_t cmd_id, const NanEnableRequest& msg1,
-    const NanConfigRequestSupplemental& msg2) {
-    legacy_hal::NanEnableRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanEnableRequest_1_2ToLegacy(
-            msg1, msg2, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanEnableRequest(ifname_, cmd_id, legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiNanIface::configRequest_1_2Internal(
-    uint16_t cmd_id, const NanConfigRequest& msg1,
-    const NanConfigRequestSupplemental& msg2) {
-    legacy_hal::NanConfigRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanConfigRequest_1_2ToLegacy(
-            msg1, msg2, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->nanConfigRequest(ifname_, cmd_id, legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_nan_iface.h b/wifi/1.2/default/wifi_nan_iface.h
deleted file mode 100644
index dba527b..0000000
--- a/wifi/1.2/default/wifi_nan_iface.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_NAN_IFACE_H_
-#define WIFI_NAN_IFACE_H_
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.0/IWifiNanIfaceEventCallback.h>
-#include <android/hardware/wifi/1.2/IWifiNanIface.h>
-
-#include "hidl_callback_util.h"
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * HIDL interface object used to control a NAN Iface instance.
- */
-class WifiNanIface : public V1_2::IWifiNanIface {
-   public:
-    WifiNanIface(const std::string& ifname,
-                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
-    // Refer to |WifiChip::invalidate()|.
-    void invalidate();
-    bool isValid();
-    std::string getName();
-
-    // HIDL methods exposed.
-    Return<void> getName(getName_cb hidl_status_cb) override;
-    Return<void> getType(getType_cb hidl_status_cb) override;
-    Return<void> registerEventCallback(
-        const sp<V1_0::IWifiNanIfaceEventCallback>& callback,
-        registerEventCallback_cb hidl_status_cb) override;
-    Return<void> getCapabilitiesRequest(
-        uint16_t cmd_id, getCapabilitiesRequest_cb hidl_status_cb) override;
-    Return<void> enableRequest(uint16_t cmd_id, const NanEnableRequest& msg,
-                               enableRequest_cb hidl_status_cb) override;
-    Return<void> configRequest(uint16_t cmd_id, const NanConfigRequest& msg,
-                               configRequest_cb hidl_status_cb) override;
-    Return<void> disableRequest(uint16_t cmd_id,
-                                disableRequest_cb hidl_status_cb) override;
-    Return<void> startPublishRequest(
-        uint16_t cmd_id, const NanPublishRequest& msg,
-        startPublishRequest_cb hidl_status_cb) override;
-    Return<void> stopPublishRequest(
-        uint16_t cmd_id, uint8_t sessionId,
-        stopPublishRequest_cb hidl_status_cb) override;
-    Return<void> startSubscribeRequest(
-        uint16_t cmd_id, const NanSubscribeRequest& msg,
-        startSubscribeRequest_cb hidl_status_cb) override;
-    Return<void> stopSubscribeRequest(
-        uint16_t cmd_id, uint8_t sessionId,
-        stopSubscribeRequest_cb hidl_status_cb) override;
-    Return<void> transmitFollowupRequest(
-        uint16_t cmd_id, const NanTransmitFollowupRequest& msg,
-        transmitFollowupRequest_cb hidl_status_cb) override;
-    Return<void> createDataInterfaceRequest(
-        uint16_t cmd_id, const hidl_string& iface_name,
-        createDataInterfaceRequest_cb hidl_status_cb) override;
-    Return<void> deleteDataInterfaceRequest(
-        uint16_t cmd_id, const hidl_string& iface_name,
-        deleteDataInterfaceRequest_cb hidl_status_cb) override;
-    Return<void> initiateDataPathRequest(
-        uint16_t cmd_id, const NanInitiateDataPathRequest& msg,
-        initiateDataPathRequest_cb hidl_status_cb) override;
-    Return<void> respondToDataPathIndicationRequest(
-        uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg,
-        respondToDataPathIndicationRequest_cb hidl_status_cb) override;
-    Return<void> terminateDataPathRequest(
-        uint16_t cmd_id, uint32_t ndpInstanceId,
-        terminateDataPathRequest_cb hidl_status_cb) override;
-
-    Return<void> registerEventCallback_1_2(
-        const sp<IWifiNanIfaceEventCallback>& callback,
-        registerEventCallback_1_2_cb hidl_status_cb) override;
-    Return<void> enableRequest_1_2(
-        uint16_t cmd_id, const NanEnableRequest& msg1,
-        const NanConfigRequestSupplemental& msg2,
-        enableRequest_1_2_cb hidl_status_cb) override;
-    Return<void> configRequest_1_2(
-        uint16_t cmd_id, const NanConfigRequest& msg1,
-        const NanConfigRequestSupplemental& msg2,
-        configRequest_1_2_cb hidl_status_cb) override;
-
-   private:
-    // Corresponding worker functions for the HIDL methods.
-    std::pair<WifiStatus, std::string> getNameInternal();
-    std::pair<WifiStatus, IfaceType> getTypeInternal();
-    WifiStatus registerEventCallbackInternal(
-        const sp<V1_0::IWifiNanIfaceEventCallback>& callback);
-    WifiStatus getCapabilitiesRequestInternal(uint16_t cmd_id);
-    WifiStatus enableRequestInternal(uint16_t cmd_id,
-                                     const NanEnableRequest& msg);
-    WifiStatus configRequestInternal(uint16_t cmd_id,
-                                     const NanConfigRequest& msg);
-    WifiStatus disableRequestInternal(uint16_t cmd_id);
-    WifiStatus startPublishRequestInternal(uint16_t cmd_id,
-                                           const NanPublishRequest& msg);
-    WifiStatus stopPublishRequestInternal(uint16_t cmd_id, uint8_t sessionId);
-    WifiStatus startSubscribeRequestInternal(uint16_t cmd_id,
-                                             const NanSubscribeRequest& msg);
-    WifiStatus stopSubscribeRequestInternal(uint16_t cmd_id, uint8_t sessionId);
-    WifiStatus transmitFollowupRequestInternal(
-        uint16_t cmd_id, const NanTransmitFollowupRequest& msg);
-    WifiStatus createDataInterfaceRequestInternal(
-        uint16_t cmd_id, const std::string& iface_name);
-    WifiStatus deleteDataInterfaceRequestInternal(
-        uint16_t cmd_id, const std::string& iface_name);
-    WifiStatus initiateDataPathRequestInternal(
-        uint16_t cmd_id, const NanInitiateDataPathRequest& msg);
-    WifiStatus respondToDataPathIndicationRequestInternal(
-        uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg);
-    WifiStatus terminateDataPathRequestInternal(uint16_t cmd_id,
-                                                uint32_t ndpInstanceId);
-
-    WifiStatus registerEventCallback_1_2Internal(
-        const sp<V1_2::IWifiNanIfaceEventCallback>& callback);
-    WifiStatus enableRequest_1_2Internal(
-        uint16_t cmd_id, const NanEnableRequest& msg1,
-        const NanConfigRequestSupplemental& msg2);
-    WifiStatus configRequest_1_2Internal(
-        uint16_t cmd_id, const NanConfigRequest& msg,
-        const NanConfigRequestSupplemental& msg2);
-
-    // all 1_0 and descendant callbacks
-    std::set<sp<V1_0::IWifiNanIfaceEventCallback>> getEventCallbacks();
-    // all 1_2 and descendant callbacks
-    std::set<sp<V1_2::IWifiNanIfaceEventCallback>> getEventCallbacks_1_2();
-
-    std::string ifname_;
-    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    bool is_valid_;
-    hidl_callback_util::HidlCallbackHandler<V1_0::IWifiNanIfaceEventCallback>
-        event_cb_handler_;
-    hidl_callback_util::HidlCallbackHandler<V1_2::IWifiNanIfaceEventCallback>
-        event_cb_handler_1_2_;
-
-    DISALLOW_COPY_AND_ASSIGN(WifiNanIface);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_NAN_IFACE_H_
diff --git a/wifi/1.2/default/wifi_p2p_iface.cpp b/wifi/1.2/default/wifi_p2p_iface.cpp
deleted file mode 100644
index 92bbaee..0000000
--- a/wifi/1.2/default/wifi_p2p_iface.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "hidl_return_util.h"
-#include "wifi_p2p_iface.h"
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-
-WifiP2pIface::WifiP2pIface(
-    const std::string& ifname,
-    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
-    : ifname_(ifname), legacy_hal_(legacy_hal), is_valid_(true) {}
-
-void WifiP2pIface::invalidate() {
-    legacy_hal_.reset();
-    is_valid_ = false;
-}
-
-bool WifiP2pIface::isValid() { return is_valid_; }
-
-std::string WifiP2pIface::getName() { return ifname_; }
-
-Return<void> WifiP2pIface::getName(getName_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiP2pIface::getNameInternal, hidl_status_cb);
-}
-
-Return<void> WifiP2pIface::getType(getType_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiP2pIface::getTypeInternal, hidl_status_cb);
-}
-
-std::pair<WifiStatus, std::string> WifiP2pIface::getNameInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
-}
-
-std::pair<WifiStatus, IfaceType> WifiP2pIface::getTypeInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::P2P};
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_p2p_iface.h b/wifi/1.2/default/wifi_p2p_iface.h
deleted file mode 100644
index 76120b1..0000000
--- a/wifi/1.2/default/wifi_p2p_iface.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_P2P_IFACE_H_
-#define WIFI_P2P_IFACE_H_
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.0/IWifiP2pIface.h>
-
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * HIDL interface object used to control a P2P Iface instance.
- */
-class WifiP2pIface : public V1_0::IWifiP2pIface {
-   public:
-    WifiP2pIface(const std::string& ifname,
-                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
-    // Refer to |WifiChip::invalidate()|.
-    void invalidate();
-    bool isValid();
-    std::string getName();
-
-    // HIDL methods exposed.
-    Return<void> getName(getName_cb hidl_status_cb) override;
-    Return<void> getType(getType_cb hidl_status_cb) override;
-
-   private:
-    // Corresponding worker functions for the HIDL methods.
-    std::pair<WifiStatus, std::string> getNameInternal();
-    std::pair<WifiStatus, IfaceType> getTypeInternal();
-
-    std::string ifname_;
-    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    bool is_valid_;
-
-    DISALLOW_COPY_AND_ASSIGN(WifiP2pIface);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_P2P_IFACE_H_
diff --git a/wifi/1.2/default/wifi_rtt_controller.cpp b/wifi/1.2/default/wifi_rtt_controller.cpp
deleted file mode 100644
index b68445b..0000000
--- a/wifi/1.2/default/wifi_rtt_controller.cpp
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "hidl_return_util.h"
-#include "hidl_struct_util.h"
-#include "wifi_rtt_controller.h"
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-
-WifiRttController::WifiRttController(
-    const std::string& iface_name, const sp<IWifiIface>& bound_iface,
-    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
-    : ifname_(iface_name),
-      bound_iface_(bound_iface),
-      legacy_hal_(legacy_hal),
-      is_valid_(true) {}
-
-void WifiRttController::invalidate() {
-    legacy_hal_.reset();
-    event_callbacks_.clear();
-    is_valid_ = false;
-}
-
-bool WifiRttController::isValid() { return is_valid_; }
-
-std::vector<sp<IWifiRttControllerEventCallback>>
-WifiRttController::getEventCallbacks() {
-    return event_callbacks_;
-}
-
-Return<void> WifiRttController::getBoundIface(getBoundIface_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::getBoundIfaceInternal, hidl_status_cb);
-}
-
-Return<void> WifiRttController::registerEventCallback(
-    const sp<IWifiRttControllerEventCallback>& callback,
-    registerEventCallback_cb hidl_status_cb) {
-    return validateAndCall(this,
-                           WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-                           &WifiRttController::registerEventCallbackInternal,
-                           hidl_status_cb, callback);
-}
-
-Return<void> WifiRttController::rangeRequest(
-    uint32_t cmd_id, const hidl_vec<RttConfig>& rtt_configs,
-    rangeRequest_cb hidl_status_cb) {
-    return validateAndCall(this,
-                           WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-                           &WifiRttController::rangeRequestInternal,
-                           hidl_status_cb, cmd_id, rtt_configs);
-}
-
-Return<void> WifiRttController::rangeCancel(
-    uint32_t cmd_id, const hidl_vec<hidl_array<uint8_t, 6>>& addrs,
-    rangeCancel_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::rangeCancelInternal, hidl_status_cb, cmd_id, addrs);
-}
-
-Return<void> WifiRttController::getCapabilities(
-    getCapabilities_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::getCapabilitiesInternal, hidl_status_cb);
-}
-
-Return<void> WifiRttController::setLci(uint32_t cmd_id,
-                                       const RttLciInformation& lci,
-                                       setLci_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::setLciInternal, hidl_status_cb, cmd_id, lci);
-}
-
-Return<void> WifiRttController::setLcr(uint32_t cmd_id,
-                                       const RttLcrInformation& lcr,
-                                       setLcr_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::setLcrInternal, hidl_status_cb, cmd_id, lcr);
-}
-
-Return<void> WifiRttController::getResponderInfo(
-    getResponderInfo_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::getResponderInfoInternal, hidl_status_cb);
-}
-
-Return<void> WifiRttController::enableResponder(
-    uint32_t cmd_id, const WifiChannelInfo& channel_hint,
-    uint32_t max_duration_seconds, const RttResponder& info,
-    enableResponder_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::enableResponderInternal, hidl_status_cb, cmd_id,
-        channel_hint, max_duration_seconds, info);
-}
-
-Return<void> WifiRttController::disableResponder(
-    uint32_t cmd_id, disableResponder_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
-        &WifiRttController::disableResponderInternal, hidl_status_cb, cmd_id);
-}
-
-std::pair<WifiStatus, sp<IWifiIface>>
-WifiRttController::getBoundIfaceInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), bound_iface_};
-}
-
-WifiStatus WifiRttController::registerEventCallbackInternal(
-    const sp<IWifiRttControllerEventCallback>& callback) {
-    // TODO(b/31632518): remove the callback when the client is destroyed
-    event_callbacks_.emplace_back(callback);
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-WifiStatus WifiRttController::rangeRequestInternal(
-    uint32_t cmd_id, const std::vector<RttConfig>& rtt_configs) {
-    std::vector<legacy_hal::wifi_rtt_config> legacy_configs;
-    if (!hidl_struct_util::convertHidlVectorOfRttConfigToLegacy(
-            rtt_configs, &legacy_configs)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    android::wp<WifiRttController> weak_ptr_this(this);
-    const auto& on_results_callback =
-        [weak_ptr_this](
-            legacy_hal::wifi_request_id id,
-            const std::vector<const legacy_hal::wifi_rtt_result*>& results) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            std::vector<RttResult> hidl_results;
-            if (!hidl_struct_util::convertLegacyVectorOfRttResultToHidl(
-                    results, &hidl_results)) {
-                LOG(ERROR) << "Failed to convert rtt results to HIDL structs";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                callback->onResults(id, hidl_results);
-            }
-        };
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->startRttRangeRequest(
-            ifname_, cmd_id, legacy_configs, on_results_callback);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiRttController::rangeCancelInternal(
-    uint32_t cmd_id, const std::vector<hidl_array<uint8_t, 6>>& addrs) {
-    std::vector<std::array<uint8_t, 6>> legacy_addrs;
-    for (const auto& addr : addrs) {
-        legacy_addrs.push_back(addr);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->cancelRttRangeRequest(ifname_, cmd_id,
-                                                  legacy_addrs);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, RttCapabilities>
-WifiRttController::getCapabilitiesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::wifi_rtt_capabilities legacy_caps;
-    std::tie(legacy_status, legacy_caps) =
-        legacy_hal_.lock()->getRttCapabilities(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    RttCapabilities hidl_caps;
-    if (!hidl_struct_util::convertLegacyRttCapabilitiesToHidl(legacy_caps,
-                                                              &hidl_caps)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
-}
-
-WifiStatus WifiRttController::setLciInternal(uint32_t cmd_id,
-                                             const RttLciInformation& lci) {
-    legacy_hal::wifi_lci_information legacy_lci;
-    if (!hidl_struct_util::convertHidlRttLciInformationToLegacy(lci,
-                                                                &legacy_lci)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->setRttLci(ifname_, cmd_id, legacy_lci);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiRttController::setLcrInternal(uint32_t cmd_id,
-                                             const RttLcrInformation& lcr) {
-    legacy_hal::wifi_lcr_information legacy_lcr;
-    if (!hidl_struct_util::convertHidlRttLcrInformationToLegacy(lcr,
-                                                                &legacy_lcr)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->setRttLcr(ifname_, cmd_id, legacy_lcr);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, RttResponder>
-WifiRttController::getResponderInfoInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::wifi_rtt_responder legacy_responder;
-    std::tie(legacy_status, legacy_responder) =
-        legacy_hal_.lock()->getRttResponderInfo(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    RttResponder hidl_responder;
-    if (!hidl_struct_util::convertLegacyRttResponderToHidl(legacy_responder,
-                                                           &hidl_responder)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_responder};
-}
-
-WifiStatus WifiRttController::enableResponderInternal(
-    uint32_t cmd_id, const WifiChannelInfo& channel_hint,
-    uint32_t max_duration_seconds, const RttResponder& info) {
-    legacy_hal::wifi_channel_info legacy_channel_info;
-    if (!hidl_struct_util::convertHidlWifiChannelInfoToLegacy(
-            channel_hint, &legacy_channel_info)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_rtt_responder legacy_responder;
-    if (!hidl_struct_util::convertHidlRttResponderToLegacy(info,
-                                                           &legacy_responder)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->enableRttResponder(
-            ifname_, cmd_id, legacy_channel_info, max_duration_seconds,
-            legacy_responder);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiRttController::disableResponderInternal(uint32_t cmd_id) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->disableRttResponder(ifname_, cmd_id);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_rtt_controller.h b/wifi/1.2/default/wifi_rtt_controller.h
deleted file mode 100644
index 1ab01e1..0000000
--- a/wifi/1.2/default/wifi_rtt_controller.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_RTT_CONTROLLER_H_
-#define WIFI_RTT_CONTROLLER_H_
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.0/IWifiIface.h>
-#include <android/hardware/wifi/1.0/IWifiRttController.h>
-#include <android/hardware/wifi/1.0/IWifiRttControllerEventCallback.h>
-
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-/**
- * HIDL interface object used to control all RTT operations.
- */
-class WifiRttController : public V1_0::IWifiRttController {
-   public:
-    WifiRttController(
-        const std::string& iface_name, const sp<IWifiIface>& bound_iface,
-        const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
-    // Refer to |WifiChip::invalidate()|.
-    void invalidate();
-    bool isValid();
-    std::vector<sp<IWifiRttControllerEventCallback>> getEventCallbacks();
-
-    // HIDL methods exposed.
-    Return<void> getBoundIface(getBoundIface_cb hidl_status_cb) override;
-    Return<void> registerEventCallback(
-        const sp<IWifiRttControllerEventCallback>& callback,
-        registerEventCallback_cb hidl_status_cb) override;
-    Return<void> rangeRequest(uint32_t cmd_id,
-                              const hidl_vec<RttConfig>& rtt_configs,
-                              rangeRequest_cb hidl_status_cb) override;
-    Return<void> rangeCancel(uint32_t cmd_id,
-                             const hidl_vec<hidl_array<uint8_t, 6>>& addrs,
-                             rangeCancel_cb hidl_status_cb) override;
-    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
-    Return<void> setLci(uint32_t cmd_id, const RttLciInformation& lci,
-                        setLci_cb hidl_status_cb) override;
-    Return<void> setLcr(uint32_t cmd_id, const RttLcrInformation& lcr,
-                        setLcr_cb hidl_status_cb) override;
-    Return<void> getResponderInfo(getResponderInfo_cb hidl_status_cb) override;
-    Return<void> enableResponder(uint32_t cmd_id,
-                                 const WifiChannelInfo& channel_hint,
-                                 uint32_t max_duration_seconds,
-                                 const RttResponder& info,
-                                 enableResponder_cb hidl_status_cb) override;
-    Return<void> disableResponder(uint32_t cmd_id,
-                                  disableResponder_cb hidl_status_cb) override;
-
-   private:
-    // Corresponding worker functions for the HIDL methods.
-    std::pair<WifiStatus, sp<IWifiIface>> getBoundIfaceInternal();
-    WifiStatus registerEventCallbackInternal(
-        const sp<IWifiRttControllerEventCallback>& callback);
-    WifiStatus rangeRequestInternal(uint32_t cmd_id,
-                                    const std::vector<RttConfig>& rtt_configs);
-    WifiStatus rangeCancelInternal(
-        uint32_t cmd_id, const std::vector<hidl_array<uint8_t, 6>>& addrs);
-    std::pair<WifiStatus, RttCapabilities> getCapabilitiesInternal();
-    WifiStatus setLciInternal(uint32_t cmd_id, const RttLciInformation& lci);
-    WifiStatus setLcrInternal(uint32_t cmd_id, const RttLcrInformation& lcr);
-    std::pair<WifiStatus, RttResponder> getResponderInfoInternal();
-    WifiStatus enableResponderInternal(uint32_t cmd_id,
-                                       const WifiChannelInfo& channel_hint,
-                                       uint32_t max_duration_seconds,
-                                       const RttResponder& info);
-    WifiStatus disableResponderInternal(uint32_t cmd_id);
-
-    std::string ifname_;
-    sp<IWifiIface> bound_iface_;
-    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    std::vector<sp<IWifiRttControllerEventCallback>> event_callbacks_;
-    bool is_valid_;
-
-    DISALLOW_COPY_AND_ASSIGN(WifiRttController);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_RTT_CONTROLLER_H_
diff --git a/wifi/1.2/default/wifi_sta_iface.cpp b/wifi/1.2/default/wifi_sta_iface.cpp
deleted file mode 100644
index daa5610..0000000
--- a/wifi/1.2/default/wifi_sta_iface.cpp
+++ /dev/null
@@ -1,628 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android-base/logging.h>
-
-#include "hidl_return_util.h"
-#include "hidl_struct_util.h"
-#include "wifi_sta_iface.h"
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using hidl_return_util::validateAndCall;
-
-WifiStaIface::WifiStaIface(
-    const std::string& ifname,
-    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
-    : ifname_(ifname), legacy_hal_(legacy_hal), is_valid_(true) {
-    // Turn on DFS channel usage for STA iface.
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->setDfsFlag(ifname_, true);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR)
-            << "Failed to set DFS flag; DFS channels may be unavailable.";
-    }
-}
-
-void WifiStaIface::invalidate() {
-    legacy_hal_.reset();
-    event_cb_handler_.invalidate();
-    is_valid_ = false;
-}
-
-bool WifiStaIface::isValid() { return is_valid_; }
-
-std::string WifiStaIface::getName() { return ifname_; }
-
-std::set<sp<IWifiStaIfaceEventCallback>> WifiStaIface::getEventCallbacks() {
-    return event_cb_handler_.getCallbacks();
-}
-
-Return<void> WifiStaIface::getName(getName_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getNameInternal, hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getType(getType_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getTypeInternal, hidl_status_cb);
-}
-
-Return<void> WifiStaIface::registerEventCallback(
-    const sp<IWifiStaIfaceEventCallback>& callback,
-    registerEventCallback_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::registerEventCallbackInternal,
-                           hidl_status_cb, callback);
-}
-
-Return<void> WifiStaIface::getCapabilities(getCapabilities_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getCapabilitiesInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getApfPacketFilterCapabilities(
-    getApfPacketFilterCapabilities_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-        &WifiStaIface::getApfPacketFilterCapabilitiesInternal, hidl_status_cb);
-}
-
-Return<void> WifiStaIface::installApfPacketFilter(
-    uint32_t cmd_id, const hidl_vec<uint8_t>& program,
-    installApfPacketFilter_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::installApfPacketFilterInternal,
-                           hidl_status_cb, cmd_id, program);
-}
-
-Return<void> WifiStaIface::readApfPacketFilterData(
-    readApfPacketFilterData_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::readApfPacketFilterDataInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getBackgroundScanCapabilities(
-    getBackgroundScanCapabilities_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getBackgroundScanCapabilitiesInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getValidFrequenciesForBand(
-    WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getValidFrequenciesForBandInternal,
-                           hidl_status_cb, band);
-}
-
-Return<void> WifiStaIface::startBackgroundScan(
-    uint32_t cmd_id, const StaBackgroundScanParameters& params,
-    startBackgroundScan_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::startBackgroundScanInternal,
-                           hidl_status_cb, cmd_id, params);
-}
-
-Return<void> WifiStaIface::stopBackgroundScan(
-    uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::stopBackgroundScanInternal,
-                           hidl_status_cb, cmd_id);
-}
-
-Return<void> WifiStaIface::enableLinkLayerStatsCollection(
-    bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-        &WifiStaIface::enableLinkLayerStatsCollectionInternal, hidl_status_cb,
-        debug);
-}
-
-Return<void> WifiStaIface::disableLinkLayerStatsCollection(
-    disableLinkLayerStatsCollection_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-        &WifiStaIface::disableLinkLayerStatsCollectionInternal, hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getLinkLayerStats(
-    getLinkLayerStats_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getLinkLayerStatsInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::startRssiMonitoring(
-    uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi,
-    startRssiMonitoring_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::startRssiMonitoringInternal,
-                           hidl_status_cb, cmd_id, max_rssi, min_rssi);
-}
-
-Return<void> WifiStaIface::stopRssiMonitoring(
-    uint32_t cmd_id, stopRssiMonitoring_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::stopRssiMonitoringInternal,
-                           hidl_status_cb, cmd_id);
-}
-
-Return<void> WifiStaIface::getRoamingCapabilities(
-    getRoamingCapabilities_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getRoamingCapabilitiesInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::configureRoaming(
-    const StaRoamingConfig& config, configureRoaming_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::configureRoamingInternal,
-                           hidl_status_cb, config);
-}
-
-Return<void> WifiStaIface::setRoamingState(StaRoamingState state,
-                                           setRoamingState_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::setRoamingStateInternal,
-                           hidl_status_cb, state);
-}
-
-Return<void> WifiStaIface::enableNdOffload(bool enable,
-                                           enableNdOffload_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::enableNdOffloadInternal,
-                           hidl_status_cb, enable);
-}
-
-Return<void> WifiStaIface::startSendingKeepAlivePackets(
-    uint32_t cmd_id, const hidl_vec<uint8_t>& ip_packet_data,
-    uint16_t ether_type, const hidl_array<uint8_t, 6>& src_address,
-    const hidl_array<uint8_t, 6>& dst_address, uint32_t period_in_ms,
-    startSendingKeepAlivePackets_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::startSendingKeepAlivePacketsInternal,
-                           hidl_status_cb, cmd_id, ip_packet_data, ether_type,
-                           src_address, dst_address, period_in_ms);
-}
-
-Return<void> WifiStaIface::stopSendingKeepAlivePackets(
-    uint32_t cmd_id, stopSendingKeepAlivePackets_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::stopSendingKeepAlivePacketsInternal,
-                           hidl_status_cb, cmd_id);
-}
-
-Return<void> WifiStaIface::setScanningMacOui(
-    const hidl_array<uint8_t, 3>& oui, setScanningMacOui_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::setScanningMacOuiInternal,
-                           hidl_status_cb, oui);
-}
-
-Return<void> WifiStaIface::startDebugPacketFateMonitoring(
-    startDebugPacketFateMonitoring_cb hidl_status_cb) {
-    return validateAndCall(
-        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-        &WifiStaIface::startDebugPacketFateMonitoringInternal, hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getDebugTxPacketFates(
-    getDebugTxPacketFates_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getDebugTxPacketFatesInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::getDebugRxPacketFates(
-    getDebugRxPacketFates_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::getDebugRxPacketFatesInternal,
-                           hidl_status_cb);
-}
-
-Return<void> WifiStaIface::setMacAddress(const hidl_array<uint8_t, 6>& mac,
-                                         setMacAddress_cb hidl_status_cb) {
-    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
-                           &WifiStaIface::setMacAddressInternal, hidl_status_cb,
-                           mac);
-}
-
-std::pair<WifiStatus, std::string> WifiStaIface::getNameInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
-}
-
-std::pair<WifiStatus, IfaceType> WifiStaIface::getTypeInternal() {
-    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::STA};
-}
-
-WifiStatus WifiStaIface::registerEventCallbackInternal(
-    const sp<IWifiStaIfaceEventCallback>& callback) {
-    if (!event_cb_handler_.addCallback(callback)) {
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-std::pair<WifiStatus, uint32_t> WifiStaIface::getCapabilitiesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    uint32_t legacy_feature_set;
-    std::tie(legacy_status, legacy_feature_set) =
-        legacy_hal_.lock()->getSupportedFeatureSet(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), 0};
-    }
-    uint32_t legacy_logger_feature_set;
-    std::tie(legacy_status, legacy_logger_feature_set) =
-        legacy_hal_.lock()->getLoggerSupportedFeatureSet(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        // some devices don't support querying logger feature set
-        legacy_logger_feature_set = 0;
-    }
-    uint32_t hidl_caps;
-    if (!hidl_struct_util::convertLegacyFeaturesToHidlStaCapabilities(
-            legacy_feature_set, legacy_logger_feature_set, &hidl_caps)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), 0};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
-}
-
-std::pair<WifiStatus, StaApfPacketFilterCapabilities>
-WifiStaIface::getApfPacketFilterCapabilitiesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::PacketFilterCapabilities legacy_caps;
-    std::tie(legacy_status, legacy_caps) =
-        legacy_hal_.lock()->getPacketFilterCapabilities(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    StaApfPacketFilterCapabilities hidl_caps;
-    if (!hidl_struct_util::convertLegacyApfCapabilitiesToHidl(legacy_caps,
-                                                              &hidl_caps)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
-}
-
-WifiStatus WifiStaIface::installApfPacketFilterInternal(
-    uint32_t /* cmd_id */, const std::vector<uint8_t>& program) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->setPacketFilter(ifname_, program);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, std::vector<uint8_t>>
-WifiStaIface::readApfPacketFilterDataInternal() {
-    const std::pair<legacy_hal::wifi_error, std::vector<uint8_t>>
-        legacy_status_and_data =
-            legacy_hal_.lock()->readApfPacketFilterData(ifname_);
-    return {createWifiStatusFromLegacyError(legacy_status_and_data.first),
-            std::move(legacy_status_and_data.second)};
-}
-
-std::pair<WifiStatus, StaBackgroundScanCapabilities>
-WifiStaIface::getBackgroundScanCapabilitiesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::wifi_gscan_capabilities legacy_caps;
-    std::tie(legacy_status, legacy_caps) =
-        legacy_hal_.lock()->getGscanCapabilities(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    StaBackgroundScanCapabilities hidl_caps;
-    if (!hidl_struct_util::convertLegacyGscanCapabilitiesToHidl(legacy_caps,
-                                                                &hidl_caps)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
-}
-
-std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
-WifiStaIface::getValidFrequenciesForBandInternal(WifiBand band) {
-    static_assert(sizeof(WifiChannelInMhz) == sizeof(uint32_t),
-                  "Size mismatch");
-    legacy_hal::wifi_error legacy_status;
-    std::vector<uint32_t> valid_frequencies;
-    std::tie(legacy_status, valid_frequencies) =
-        legacy_hal_.lock()->getValidFrequenciesForBand(
-            ifname_, hidl_struct_util::convertHidlWifiBandToLegacy(band));
-    return {createWifiStatusFromLegacyError(legacy_status), valid_frequencies};
-}
-
-WifiStatus WifiStaIface::startBackgroundScanInternal(
-    uint32_t cmd_id, const StaBackgroundScanParameters& params) {
-    legacy_hal::wifi_scan_cmd_params legacy_params;
-    if (!hidl_struct_util::convertHidlGscanParamsToLegacy(params,
-                                                          &legacy_params)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    android::wp<WifiStaIface> weak_ptr_this(this);
-    const auto& on_failure_callback =
-        [weak_ptr_this](legacy_hal::wifi_request_id id) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->onBackgroundScanFailure(id).isOk()) {
-                    LOG(ERROR)
-                        << "Failed to invoke onBackgroundScanFailure callback";
-                }
-            }
-        };
-    const auto& on_results_callback =
-        [weak_ptr_this](
-            legacy_hal::wifi_request_id id,
-            const std::vector<legacy_hal::wifi_cached_scan_results>& results) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            std::vector<StaScanData> hidl_scan_datas;
-            if (!hidl_struct_util::
-                    convertLegacyVectorOfCachedGscanResultsToHidl(
-                        results, &hidl_scan_datas)) {
-                LOG(ERROR) << "Failed to convert scan results to HIDL structs";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->onBackgroundScanResults(id, hidl_scan_datas)
-                         .isOk()) {
-                    LOG(ERROR)
-                        << "Failed to invoke onBackgroundScanResults callback";
-                }
-            }
-        };
-    const auto& on_full_result_callback = [weak_ptr_this](
-                                              legacy_hal::wifi_request_id id,
-                                              const legacy_hal::
-                                                  wifi_scan_result* result,
-                                              uint32_t buckets_scanned) {
-        const auto shared_ptr_this = weak_ptr_this.promote();
-        if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-            LOG(ERROR) << "Callback invoked on an invalid object";
-            return;
-        }
-        StaScanResult hidl_scan_result;
-        if (!hidl_struct_util::convertLegacyGscanResultToHidl(
-                *result, true, &hidl_scan_result)) {
-            LOG(ERROR) << "Failed to convert full scan results to HIDL structs";
-            return;
-        }
-        for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-            if (!callback
-                     ->onBackgroundFullScanResult(id, buckets_scanned,
-                                                  hidl_scan_result)
-                     .isOk()) {
-                LOG(ERROR)
-                    << "Failed to invoke onBackgroundFullScanResult callback";
-            }
-        }
-    };
-    legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->startGscan(
-        ifname_, cmd_id, legacy_params, on_failure_callback,
-        on_results_callback, on_full_result_callback);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::stopBackgroundScanInternal(uint32_t cmd_id) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->stopGscan(ifname_, cmd_id);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::enableLinkLayerStatsCollectionInternal(bool debug) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->enableLinkLayerStats(ifname_, debug);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::disableLinkLayerStatsCollectionInternal() {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->disableLinkLayerStats(ifname_);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, StaLinkLayerStats>
-WifiStaIface::getLinkLayerStatsInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::LinkLayerStats legacy_stats;
-    std::tie(legacy_status, legacy_stats) =
-        legacy_hal_.lock()->getLinkLayerStats(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    StaLinkLayerStats hidl_stats;
-    if (!hidl_struct_util::convertLegacyLinkLayerStatsToHidl(legacy_stats,
-                                                             &hidl_stats)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_stats};
-}
-
-WifiStatus WifiStaIface::startRssiMonitoringInternal(uint32_t cmd_id,
-                                                     int32_t max_rssi,
-                                                     int32_t min_rssi) {
-    android::wp<WifiStaIface> weak_ptr_this(this);
-    const auto& on_threshold_breached_callback =
-        [weak_ptr_this](legacy_hal::wifi_request_id id,
-                        std::array<uint8_t, 6> bssid, int8_t rssi) {
-            const auto shared_ptr_this = weak_ptr_this.promote();
-            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
-                LOG(ERROR) << "Callback invoked on an invalid object";
-                return;
-            }
-            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-                if (!callback->onRssiThresholdBreached(id, bssid, rssi)
-                         .isOk()) {
-                    LOG(ERROR)
-                        << "Failed to invoke onRssiThresholdBreached callback";
-                }
-            }
-        };
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->startRssiMonitoring(ifname_, cmd_id, max_rssi,
-                                                min_rssi,
-                                                on_threshold_breached_callback);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::stopRssiMonitoringInternal(uint32_t cmd_id) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->stopRssiMonitoring(ifname_, cmd_id);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, StaRoamingCapabilities>
-WifiStaIface::getRoamingCapabilitiesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    legacy_hal::wifi_roaming_capabilities legacy_caps;
-    std::tie(legacy_status, legacy_caps) =
-        legacy_hal_.lock()->getRoamingCapabilities(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    StaRoamingCapabilities hidl_caps;
-    if (!hidl_struct_util::convertLegacyRoamingCapabilitiesToHidl(legacy_caps,
-                                                                  &hidl_caps)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
-}
-
-WifiStatus WifiStaIface::configureRoamingInternal(
-    const StaRoamingConfig& config) {
-    legacy_hal::wifi_roaming_config legacy_config;
-    if (!hidl_struct_util::convertHidlRoamingConfigToLegacy(config,
-                                                            &legacy_config)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->configureRoaming(ifname_, legacy_config);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::setRoamingStateInternal(StaRoamingState state) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->enableFirmwareRoaming(
-            ifname_, hidl_struct_util::convertHidlRoamingStateToLegacy(state));
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::enableNdOffloadInternal(bool enable) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->configureNdOffload(ifname_, enable);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::startSendingKeepAlivePacketsInternal(
-    uint32_t cmd_id, const std::vector<uint8_t>& ip_packet_data,
-    uint16_t /* ether_type */, const std::array<uint8_t, 6>& src_address,
-    const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->startSendingOffloadedPacket(
-            ifname_, cmd_id, ip_packet_data, src_address, dst_address,
-            period_in_ms);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::stopSendingKeepAlivePacketsInternal(uint32_t cmd_id) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->stopSendingOffloadedPacket(ifname_, cmd_id);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::setScanningMacOuiInternal(
-    const std::array<uint8_t, 3>& oui) {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->setScanningMacOui(ifname_, oui);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-WifiStatus WifiStaIface::startDebugPacketFateMonitoringInternal() {
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_.lock()->startPktFateMonitoring(ifname_);
-    return createWifiStatusFromLegacyError(legacy_status);
-}
-
-std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
-WifiStaIface::getDebugTxPacketFatesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    std::vector<legacy_hal::wifi_tx_report> legacy_fates;
-    std::tie(legacy_status, legacy_fates) =
-        legacy_hal_.lock()->getTxPktFates(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    std::vector<WifiDebugTxPacketFateReport> hidl_fates;
-    if (!hidl_struct_util::convertLegacyVectorOfDebugTxPacketFateToHidl(
-            legacy_fates, &hidl_fates)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_fates};
-}
-
-std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
-WifiStaIface::getDebugRxPacketFatesInternal() {
-    legacy_hal::wifi_error legacy_status;
-    std::vector<legacy_hal::wifi_rx_report> legacy_fates;
-    std::tie(legacy_status, legacy_fates) =
-        legacy_hal_.lock()->getRxPktFates(ifname_);
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        return {createWifiStatusFromLegacyError(legacy_status), {}};
-    }
-    std::vector<WifiDebugRxPacketFateReport> hidl_fates;
-    if (!hidl_struct_util::convertLegacyVectorOfDebugRxPacketFateToHidl(
-            legacy_fates, &hidl_fates)) {
-        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_fates};
-}
-
-WifiStatus WifiStaIface::setMacAddressInternal(
-    const std::array<uint8_t, 6>& mac) {
-    if (!iface_tool_.SetWifiUpState(false)) {
-        LOG(ERROR) << "SetWifiUpState(false) failed.";
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-
-    if (!iface_tool_.SetMacAddress(ifname_.c_str(), mac)) {
-        LOG(ERROR) << "SetMacAddress failed.";
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-
-    if (!iface_tool_.SetWifiUpState(true)) {
-        LOG(ERROR) << "SetWifiUpState(true) failed.";
-        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
-    }
-    LOG(DEBUG) << "Successfully SetMacAddress.";
-    return createWifiStatus(WifiStatusCode::SUCCESS);
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_sta_iface.h b/wifi/1.2/default/wifi_sta_iface.h
deleted file mode 100644
index 71cd17d..0000000
--- a/wifi/1.2/default/wifi_sta_iface.h
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_STA_IFACE_H_
-#define WIFI_STA_IFACE_H_
-
-#include <android-base/macros.h>
-#include <android/hardware/wifi/1.0/IWifiStaIfaceEventCallback.h>
-#include <android/hardware/wifi/1.2/IWifiStaIface.h>
-
-#include <wifi_system/interface_tool.h>
-
-#include "hidl_callback_util.h"
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-/**
- * HIDL interface object used to control a STA Iface instance.
- */
-class WifiStaIface : public V1_2::IWifiStaIface {
-   public:
-    WifiStaIface(const std::string& ifname,
-                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
-    // Refer to |WifiChip::invalidate()|.
-    void invalidate();
-    bool isValid();
-    std::set<sp<IWifiStaIfaceEventCallback>> getEventCallbacks();
-    std::string getName();
-
-    // HIDL methods exposed.
-    Return<void> getName(getName_cb hidl_status_cb) override;
-    Return<void> getType(getType_cb hidl_status_cb) override;
-    Return<void> registerEventCallback(
-        const sp<IWifiStaIfaceEventCallback>& callback,
-        registerEventCallback_cb hidl_status_cb) override;
-    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
-    Return<void> getApfPacketFilterCapabilities(
-        getApfPacketFilterCapabilities_cb hidl_status_cb) override;
-    Return<void> installApfPacketFilter(
-        uint32_t cmd_id, const hidl_vec<uint8_t>& program,
-        installApfPacketFilter_cb hidl_status_cb) override;
-    Return<void> readApfPacketFilterData(
-        readApfPacketFilterData_cb hidl_status_cb) override;
-    Return<void> getBackgroundScanCapabilities(
-        getBackgroundScanCapabilities_cb hidl_status_cb) override;
-    Return<void> getValidFrequenciesForBand(
-        WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) override;
-    Return<void> startBackgroundScan(
-        uint32_t cmd_id, const StaBackgroundScanParameters& params,
-        startBackgroundScan_cb hidl_status_cb) override;
-    Return<void> stopBackgroundScan(
-        uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) override;
-    Return<void> enableLinkLayerStatsCollection(
-        bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) override;
-    Return<void> disableLinkLayerStatsCollection(
-        disableLinkLayerStatsCollection_cb hidl_status_cb) override;
-    Return<void> getLinkLayerStats(
-        getLinkLayerStats_cb hidl_status_cb) override;
-    Return<void> startRssiMonitoring(
-        uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi,
-        startRssiMonitoring_cb hidl_status_cb) override;
-    Return<void> stopRssiMonitoring(
-        uint32_t cmd_id, stopRssiMonitoring_cb hidl_status_cb) override;
-    Return<void> getRoamingCapabilities(
-        getRoamingCapabilities_cb hidl_status_cb) override;
-    Return<void> configureRoaming(const StaRoamingConfig& config,
-                                  configureRoaming_cb hidl_status_cb) override;
-    Return<void> setRoamingState(StaRoamingState state,
-                                 setRoamingState_cb hidl_status_cb) override;
-    Return<void> enableNdOffload(bool enable,
-                                 enableNdOffload_cb hidl_status_cb) override;
-    Return<void> startSendingKeepAlivePackets(
-        uint32_t cmd_id, const hidl_vec<uint8_t>& ip_packet_data,
-        uint16_t ether_type, const hidl_array<uint8_t, 6>& src_address,
-        const hidl_array<uint8_t, 6>& dst_address, uint32_t period_in_ms,
-        startSendingKeepAlivePackets_cb hidl_status_cb) override;
-    Return<void> stopSendingKeepAlivePackets(
-        uint32_t cmd_id,
-        stopSendingKeepAlivePackets_cb hidl_status_cb) override;
-    Return<void> setScanningMacOui(
-        const hidl_array<uint8_t, 3>& oui,
-        setScanningMacOui_cb hidl_status_cb) override;
-    Return<void> startDebugPacketFateMonitoring(
-        startDebugPacketFateMonitoring_cb hidl_status_cb) override;
-    Return<void> getDebugTxPacketFates(
-        getDebugTxPacketFates_cb hidl_status_cb) override;
-    Return<void> getDebugRxPacketFates(
-        getDebugRxPacketFates_cb hidl_status_cb) override;
-    Return<void> setMacAddress(const hidl_array<uint8_t, 6>& mac,
-                               setMacAddress_cb hidl_status_cb) override;
-
-   private:
-    // Corresponding worker functions for the HIDL methods.
-    std::pair<WifiStatus, std::string> getNameInternal();
-    std::pair<WifiStatus, IfaceType> getTypeInternal();
-    WifiStatus registerEventCallbackInternal(
-        const sp<IWifiStaIfaceEventCallback>& callback);
-    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal();
-    std::pair<WifiStatus, StaApfPacketFilterCapabilities>
-    getApfPacketFilterCapabilitiesInternal();
-    WifiStatus installApfPacketFilterInternal(
-        uint32_t cmd_id, const std::vector<uint8_t>& program);
-    std::pair<WifiStatus, std::vector<uint8_t>>
-    readApfPacketFilterDataInternal();
-    std::pair<WifiStatus, StaBackgroundScanCapabilities>
-    getBackgroundScanCapabilitiesInternal();
-    std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
-    getValidFrequenciesForBandInternal(WifiBand band);
-    WifiStatus startBackgroundScanInternal(
-        uint32_t cmd_id, const StaBackgroundScanParameters& params);
-    WifiStatus stopBackgroundScanInternal(uint32_t cmd_id);
-    WifiStatus enableLinkLayerStatsCollectionInternal(bool debug);
-    WifiStatus disableLinkLayerStatsCollectionInternal();
-    std::pair<WifiStatus, StaLinkLayerStats> getLinkLayerStatsInternal();
-    WifiStatus startRssiMonitoringInternal(uint32_t cmd_id, int32_t max_rssi,
-                                           int32_t min_rssi);
-    WifiStatus stopRssiMonitoringInternal(uint32_t cmd_id);
-    std::pair<WifiStatus, StaRoamingCapabilities>
-    getRoamingCapabilitiesInternal();
-    WifiStatus configureRoamingInternal(const StaRoamingConfig& config);
-    WifiStatus setRoamingStateInternal(StaRoamingState state);
-    WifiStatus enableNdOffloadInternal(bool enable);
-    WifiStatus startSendingKeepAlivePacketsInternal(
-        uint32_t cmd_id, const std::vector<uint8_t>& ip_packet_data,
-        uint16_t ether_type, const std::array<uint8_t, 6>& src_address,
-        const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms);
-    WifiStatus stopSendingKeepAlivePacketsInternal(uint32_t cmd_id);
-    WifiStatus setScanningMacOuiInternal(const std::array<uint8_t, 3>& oui);
-    WifiStatus startDebugPacketFateMonitoringInternal();
-    std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
-    getDebugTxPacketFatesInternal();
-    std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
-    getDebugRxPacketFatesInternal();
-    WifiStatus setMacAddressInternal(const std::array<uint8_t, 6>& mac);
-
-    std::string ifname_;
-    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
-    bool is_valid_;
-    hidl_callback_util::HidlCallbackHandler<IWifiStaIfaceEventCallback>
-        event_cb_handler_;
-    wifi_system::InterfaceTool iface_tool_;
-
-    DISALLOW_COPY_AND_ASSIGN(WifiStaIface);
-};
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_STA_IFACE_H_
diff --git a/wifi/1.2/default/wifi_status_util.cpp b/wifi/1.2/default/wifi_status_util.cpp
deleted file mode 100644
index dd37b6b..0000000
--- a/wifi/1.2/default/wifi_status_util.cpp
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "wifi_status_util.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-
-std::string legacyErrorToString(legacy_hal::wifi_error error) {
-    switch (error) {
-        case legacy_hal::WIFI_SUCCESS:
-            return "SUCCESS";
-        case legacy_hal::WIFI_ERROR_UNINITIALIZED:
-            return "UNINITIALIZED";
-        case legacy_hal::WIFI_ERROR_NOT_AVAILABLE:
-            return "NOT_AVAILABLE";
-        case legacy_hal::WIFI_ERROR_NOT_SUPPORTED:
-            return "NOT_SUPPORTED";
-        case legacy_hal::WIFI_ERROR_INVALID_ARGS:
-            return "INVALID_ARGS";
-        case legacy_hal::WIFI_ERROR_INVALID_REQUEST_ID:
-            return "INVALID_REQUEST_ID";
-        case legacy_hal::WIFI_ERROR_TIMED_OUT:
-            return "TIMED_OUT";
-        case legacy_hal::WIFI_ERROR_TOO_MANY_REQUESTS:
-            return "TOO_MANY_REQUESTS";
-        case legacy_hal::WIFI_ERROR_OUT_OF_MEMORY:
-            return "OUT_OF_MEMORY";
-        case legacy_hal::WIFI_ERROR_BUSY:
-            return "BUSY";
-        case legacy_hal::WIFI_ERROR_UNKNOWN:
-            return "UNKNOWN";
-    }
-}
-
-WifiStatus createWifiStatus(WifiStatusCode code,
-                            const std::string& description) {
-    return {code, description};
-}
-
-WifiStatus createWifiStatus(WifiStatusCode code) {
-    return createWifiStatus(code, "");
-}
-
-WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error,
-                                           const std::string& desc) {
-    switch (error) {
-        case legacy_hal::WIFI_ERROR_UNINITIALIZED:
-        case legacy_hal::WIFI_ERROR_NOT_AVAILABLE:
-            return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE, desc);
-
-        case legacy_hal::WIFI_ERROR_NOT_SUPPORTED:
-            return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED, desc);
-
-        case legacy_hal::WIFI_ERROR_INVALID_ARGS:
-        case legacy_hal::WIFI_ERROR_INVALID_REQUEST_ID:
-            return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS, desc);
-
-        case legacy_hal::WIFI_ERROR_TIMED_OUT:
-            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN,
-                                    desc + ", timed out");
-
-        case legacy_hal::WIFI_ERROR_TOO_MANY_REQUESTS:
-            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN,
-                                    desc + ", too many requests");
-
-        case legacy_hal::WIFI_ERROR_OUT_OF_MEMORY:
-            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN,
-                                    desc + ", out of memory");
-
-        case legacy_hal::WIFI_ERROR_BUSY:
-            return createWifiStatus(WifiStatusCode::ERROR_BUSY);
-
-        case legacy_hal::WIFI_ERROR_NONE:
-            return createWifiStatus(WifiStatusCode::SUCCESS, desc);
-
-        case legacy_hal::WIFI_ERROR_UNKNOWN:
-            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN, "unknown");
-    }
-}
-
-WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error) {
-    return createWifiStatusFromLegacyError(error, "");
-}
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
diff --git a/wifi/1.2/default/wifi_status_util.h b/wifi/1.2/default/wifi_status_util.h
deleted file mode 100644
index e9136b3..0000000
--- a/wifi/1.2/default/wifi_status_util.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WIFI_STATUS_UTIL_H_
-#define WIFI_STATUS_UTIL_H_
-
-#include <android/hardware/wifi/1.0/IWifi.h>
-
-#include "wifi_legacy_hal.h"
-
-namespace android {
-namespace hardware {
-namespace wifi {
-namespace V1_2 {
-namespace implementation {
-using namespace android::hardware::wifi::V1_0;
-
-std::string legacyErrorToString(legacy_hal::wifi_error error);
-WifiStatus createWifiStatus(WifiStatusCode code,
-                            const std::string& description);
-WifiStatus createWifiStatus(WifiStatusCode code);
-WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error,
-                                           const std::string& description);
-WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error);
-
-}  // namespace implementation
-}  // namespace V1_2
-}  // namespace wifi
-}  // namespace hardware
-}  // namespace android
-
-#endif  // WIFI_STATUS_UTIL_H_
diff --git a/wifi/1.2/vts/OWNERS b/wifi/1.2/vts/OWNERS
index 811c857..8bfb148 100644
--- a/wifi/1.2/vts/OWNERS
+++ b/wifi/1.2/vts/OWNERS
@@ -1,4 +1,2 @@
 rpius@google.com
-quiche@google.com
-arabawy@google.com
-yim@google.com
\ No newline at end of file
+etancohen@google.com
diff --git a/wifi/1.2/vts/functional/Android.bp b/wifi/1.2/vts/functional/Android.bp
index a969f65..b2956ce 100644
--- a/wifi/1.2/vts/functional/Android.bp
+++ b/wifi/1.2/vts/functional/Android.bp
@@ -27,6 +27,7 @@
         "android.hardware.wifi@1.0",
         "android.hardware.wifi@1.1",
         "android.hardware.wifi@1.2",
+        "android.hardware.wifi@1.3",
     ],
     test_suites: ["general-tests"],
 }
diff --git a/wifi/1.2/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.2/vts/functional/wifi_chip_hidl_test.cpp
index a5457b7..9d567fe 100644
--- a/wifi/1.2/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.2/vts/functional/wifi_chip_hidl_test.cpp
@@ -18,6 +18,7 @@
 
 #include <android/hardware/wifi/1.2/IWifiChip.h>
 #include <android/hardware/wifi/1.2/IWifiChipEventCallback.h>
+#include <android/hardware/wifi/1.3/IWifiChip.h>
 
 #include <VtsHalHidlTargetCallbackBase.h>
 #include <VtsHalHidlTargetTestBase.h>
@@ -104,7 +105,19 @@
     ChipModeId mode_id;
     EXPECT_TRUE(
         configureChipToSupportIfaceType(wifi_chip_, IfaceType::STA, &mode_id));
-    const auto& status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities);
+
+    sp<::android::hardware::wifi::V1_3::IWifiChip> chip_converted =
+        ::android::hardware::wifi::V1_3::IWifiChip::castFrom(wifi_chip_);
+
+    std::pair<WifiStatus, uint32_t> status_and_caps;
+
+    if (chip_converted != nullptr) {
+        // Call the newer HAL version
+        status_and_caps = HIDL_INVOKE(chip_converted, getCapabilities_1_3);
+    } else {
+        status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities);
+    }
+
     EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_caps.first.code);
     return status_and_caps.second;
   }
diff --git a/wifi/1.3/Android.bp b/wifi/1.3/Android.bp
new file mode 100644
index 0000000..8af1dc4
--- /dev/null
+++ b/wifi/1.3/Android.bp
@@ -0,0 +1,28 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.wifi@1.3",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IWifi.hal",
+        "IWifiChip.hal",
+        "IWifiStaIface.hal",
+    ],
+    interfaces: [
+        "android.hardware.wifi@1.0",
+        "android.hardware.wifi@1.1",
+        "android.hardware.wifi@1.2",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "StaLinkLayerRadioStats",
+        "StaLinkLayerStats",
+        "WifiChannelStats",
+    ],
+    gen_java: true,
+}
+
diff --git a/wifi/1.3/IWifi.hal b/wifi/1.3/IWifi.hal
new file mode 100644
index 0000000..298e722
--- /dev/null
+++ b/wifi/1.3/IWifi.hal
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi@1.3;
+
+import @1.2::IWifi;
+
+/**
+ * This is the root of the HAL module and is the interface returned when
+ * loading an implementation of the Wi-Fi HAL. There must be at most one
+ * module loaded in the system.
+ * IWifi.getChip() must return @1.2::IWifiChip
+ */
+interface IWifi extends @1.2::IWifi {
+};
diff --git a/wifi/1.3/IWifiChip.hal b/wifi/1.3/IWifiChip.hal
new file mode 100644
index 0000000..fc6dbac
--- /dev/null
+++ b/wifi/1.3/IWifiChip.hal
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi@1.3;
+
+import @1.0::WifiStatus;
+import @1.2::IWifiChip;
+
+/**
+ * Interface that represents a chip that must be configured as a single unit.
+ */
+interface IWifiChip extends @1.2::IWifiChip {
+
+    /**
+     * Capabilities exposed by this chip.
+     */
+    enum ChipCapabilityMask : @1.2::IWifiChip.ChipCapabilityMask {
+        /**
+         * Set Latency Mode.
+         */
+        SET_LATENCY_MODE = 1 << 12,
+
+        /**
+         * Support P2P MAC randomization
+         */
+        P2P_RAND_MAC = 1 << 13
+    };
+
+    /**
+     * Get the capabilities supported by this chip.
+     *
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_WIFI_CHIP_INVALID|,
+     *         |WifiStatusCode.ERROR_NOT_AVAILABLE|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     * @return capabilities Bitset of |ChipCapabilityMask| values.
+     */
+    getCapabilities_1_3()
+      generates (WifiStatus status, bitfield<ChipCapabilityMask> capabilities);
+
+    /**
+     * This enum represents the different latency modes that can be set through
+     * setLatencyMode()
+     */
+    enum LatencyMode : uint32_t {
+        NORMAL    = 0,
+        LOW       = 1
+    };
+
+    /**
+     * API to set the wifi latency mode
+     *
+     * Latency mode determines whether or not to optimize for reducing wifi
+     * latency as a tradeoff with other wifi functionality such as scanning,
+     * roaming, etc. This optimization is suitable for some applications such
+     * as gaming and virtual reality applications.
+     */
+    setLatencyMode(LatencyMode mode) generates (WifiStatus status);
+
+    /**
+     * API to flush debug ring buffer data to files.
+     *
+     * Force flush debug ring buffer using IBase::debug.
+     * This API help to collect firmware/driver/pkt logs.
+     *
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.UNKNOWN|
+     */
+    flushRingBufferToFile() generates (WifiStatus status);
+};
diff --git a/wifi/1.3/IWifiStaIface.hal b/wifi/1.3/IWifiStaIface.hal
new file mode 100644
index 0000000..81c0c38
--- /dev/null
+++ b/wifi/1.3/IWifiStaIface.hal
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi@1.3;
+
+import @1.0::WifiStatus;
+import @1.0::MacAddress;
+import @1.2::IWifiStaIface;
+
+/**
+ * Interface used to represent a single STA iface.
+ *
+ * IWifiChip.createStaIface() may return a @1.3::IWifiStaIface when supported.
+ */
+interface IWifiStaIface extends @1.2::IWifiStaIface {
+    /**
+     * Retrieve the latest link layer stats.
+     * Must fail if |StaIfaceCapabilityMask.LINK_LAYER_STATS| is not set or if
+     * link layer stats collection hasn't been explicitly enabled.
+     *
+     * @return status WifiStatus of the operation.
+     *     Possible status codes:
+     *     |WifiStatusCode.SUCCESS|,
+     *     |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *     |WifiStatusCode.ERROR_NOT_SUPPORTED|,
+     *     |WifiStatusCode.ERROR_NOT_STARTED|,
+     *     |WifiStatusCode.ERROR_NOT_AVAILABLE|,
+     *     |WifiStatusCode.ERROR_UNKNOWN|
+     * @return stats Instance of |LinkLayerStats|.
+     */
+    getLinkLayerStats_1_3() generates (WifiStatus status, StaLinkLayerStats stats);
+
+    /**
+     * Gets the factory MAC address of the Sta Interface
+     * @return status WifiStatus of the operation
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     * @return mac Factory MAC address of the Sta Interface
+     */
+     getFactoryMacAddress() generates (WifiStatus status, MacAddress mac);
+};
diff --git a/wifi/1.3/default/Android.mk b/wifi/1.3/default/Android.mk
new file mode 100644
index 0000000..199ea3b
--- /dev/null
+++ b/wifi/1.3/default/Android.mk
@@ -0,0 +1,171 @@
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+LOCAL_PATH := $(call my-dir)
+
+###
+### android.hardware.wifi static library
+###
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.wifi@1.0-service-lib
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_CPPFLAGS := -Wall -Werror -Wextra
+ifdef WIFI_HAL_INTERFACE_COMBINATIONS
+LOCAL_CPPFLAGS += -DWIFI_HAL_INTERFACE_COMBINATIONS="$(WIFI_HAL_INTERFACE_COMBINATIONS)"
+endif
+ifdef WIFI_HIDL_FEATURE_AWARE
+LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_AWARE
+endif
+ifdef WIFI_HIDL_FEATURE_DUAL_INTERFACE
+LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_DUAL_INTERFACE
+endif
+ifdef WIFI_HIDL_FEATURE_DISABLE_AP
+LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_DISABLE_AP
+endif
+ifdef WIFI_HIDL_FEATURE_DISABLE_AP_MAC_RANDOMIZATION
+LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_DISABLE_AP_MAC_RANDOMIZATION
+endif
+# Allow implicit fallthroughs in wifi_legacy_hal.cpp until they are fixed.
+LOCAL_CFLAGS += -Wno-error=implicit-fallthrough
+LOCAL_SRC_FILES := \
+    hidl_struct_util.cpp \
+    hidl_sync_util.cpp \
+    ringbuffer.cpp \
+    wifi.cpp \
+    wifi_ap_iface.cpp \
+    wifi_chip.cpp \
+    wifi_feature_flags.cpp \
+    wifi_iface_util.cpp \
+    wifi_legacy_hal.cpp \
+    wifi_legacy_hal_stubs.cpp \
+    wifi_mode_controller.cpp \
+    wifi_nan_iface.cpp \
+    wifi_p2p_iface.cpp \
+    wifi_rtt_controller.cpp \
+    wifi_sta_iface.cpp \
+    wifi_status_util.cpp
+LOCAL_SHARED_LIBRARIES := \
+    libbase \
+    libcutils \
+    libhidlbase \
+    libhidltransport \
+    liblog \
+    libnl \
+    libutils \
+    libwifi-hal \
+    libwifi-system-iface \
+    android.hardware.wifi@1.0 \
+    android.hardware.wifi@1.1 \
+    android.hardware.wifi@1.2 \
+    android.hardware.wifi@1.3
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+include $(BUILD_STATIC_LIBRARY)
+
+###
+### android.hardware.wifi daemon
+###
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.wifi@1.0-service
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_CPPFLAGS := -Wall -Werror -Wextra
+LOCAL_SRC_FILES := \
+    service.cpp
+LOCAL_SHARED_LIBRARIES := \
+    libbase \
+    libcutils \
+    libhidlbase \
+    libhidltransport \
+    liblog \
+    libnl \
+    libutils \
+    libwifi-hal \
+    libwifi-system-iface \
+    android.hardware.wifi@1.0 \
+    android.hardware.wifi@1.1 \
+    android.hardware.wifi@1.2 \
+    android.hardware.wifi@1.3
+LOCAL_STATIC_LIBRARIES := \
+    android.hardware.wifi@1.0-service-lib
+LOCAL_INIT_RC := android.hardware.wifi@1.0-service.rc
+include $(BUILD_EXECUTABLE)
+
+###
+### android.hardware.wifi daemon
+###
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.wifi@1.0-service-lazy
+LOCAL_OVERRIDES_MODULES := android.hardware.wifi@1.0-service
+LOCAL_CFLAGS := -DLAZY_SERVICE
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_CPPFLAGS := -Wall -Werror -Wextra
+LOCAL_SRC_FILES := \
+    service.cpp
+LOCAL_SHARED_LIBRARIES := \
+    libbase \
+    libcutils \
+    libhidlbase \
+    libhidltransport \
+    liblog \
+    libnl \
+    libutils \
+    libwifi-hal \
+    libwifi-system-iface \
+    android.hardware.wifi@1.0 \
+    android.hardware.wifi@1.1 \
+    android.hardware.wifi@1.2 \
+    android.hardware.wifi@1.3
+LOCAL_STATIC_LIBRARIES := \
+    android.hardware.wifi@1.0-service-lib
+LOCAL_INIT_RC := android.hardware.wifi@1.0-service-lazy.rc
+include $(BUILD_EXECUTABLE)
+
+###
+### android.hardware.wifi unit tests.
+###
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.wifi@1.0-service-tests
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_CPPFLAGS := -Wall -Werror -Wextra
+LOCAL_SRC_FILES := \
+    tests/hidl_struct_util_unit_tests.cpp \
+    tests/main.cpp \
+    tests/mock_wifi_feature_flags.cpp \
+    tests/mock_wifi_iface_util.cpp \
+    tests/mock_wifi_legacy_hal.cpp \
+    tests/mock_wifi_mode_controller.cpp \
+    tests/ringbuffer_unit_tests.cpp \
+    tests/wifi_ap_iface_unit_tests.cpp \
+    tests/wifi_chip_unit_tests.cpp \
+    tests/wifi_iface_util_unit_tests.cpp
+LOCAL_STATIC_LIBRARIES := \
+    libgmock \
+    libgtest \
+    libhidlbase \
+    android.hardware.wifi@1.0-service-lib
+LOCAL_SHARED_LIBRARIES := \
+    libbase \
+    libcutils \
+    libhidltransport \
+    liblog \
+    libnl \
+    libutils \
+    libwifi-hal \
+    libwifi-system-iface \
+    android.hardware.wifi@1.0 \
+    android.hardware.wifi@1.1 \
+    android.hardware.wifi@1.2 \
+    android.hardware.wifi@1.3
+include $(BUILD_NATIVE_TEST)
diff --git a/wifi/1.2/default/OWNERS b/wifi/1.3/default/OWNERS
similarity index 100%
rename from wifi/1.2/default/OWNERS
rename to wifi/1.3/default/OWNERS
diff --git a/wifi/1.2/default/THREADING.README b/wifi/1.3/default/THREADING.README
similarity index 100%
rename from wifi/1.2/default/THREADING.README
rename to wifi/1.3/default/THREADING.README
diff --git a/wifi/1.3/default/android.hardware.wifi@1.0-service-lazy.rc b/wifi/1.3/default/android.hardware.wifi@1.0-service-lazy.rc
new file mode 100644
index 0000000..cf917b5
--- /dev/null
+++ b/wifi/1.3/default/android.hardware.wifi@1.0-service-lazy.rc
@@ -0,0 +1,8 @@
+service vendor.wifi_hal_legacy /vendor/bin/hw/android.hardware.wifi@1.0-service-lazy
+    interface android.hardware.wifi@1.0::IWifi default
+    oneshot
+    disabled
+    class hal
+    capabilities NET_ADMIN NET_RAW SYS_MODULE
+    user wifi
+    group wifi gps
diff --git a/wifi/1.2/default/android.hardware.wifi@1.0-service.rc b/wifi/1.3/default/android.hardware.wifi@1.0-service.rc
similarity index 100%
rename from wifi/1.2/default/android.hardware.wifi@1.0-service.rc
rename to wifi/1.3/default/android.hardware.wifi@1.0-service.rc
diff --git a/wifi/1.3/default/hidl_callback_util.h b/wifi/1.3/default/hidl_callback_util.h
new file mode 100644
index 0000000..a44af79
--- /dev/null
+++ b/wifi/1.3/default/hidl_callback_util.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HIDL_CALLBACK_UTIL_H_
+#define HIDL_CALLBACK_UTIL_H_
+
+#include <set>
+
+#include <hidl/HidlSupport.h>
+
+namespace {
+// Type of callback invoked by the death handler.
+using on_death_cb_function = std::function<void(uint64_t)>;
+
+// Private class used to keep track of death of individual
+// callbacks stored in HidlCallbackHandler.
+template <typename CallbackType>
+class HidlDeathHandler : public android::hardware::hidl_death_recipient {
+   public:
+    HidlDeathHandler(const on_death_cb_function& user_cb_function)
+        : cb_function_(user_cb_function) {}
+    ~HidlDeathHandler() = default;
+
+    // Death notification for callbacks.
+    void serviceDied(
+        uint64_t cookie,
+        const android::wp<android::hidl::base::V1_0::IBase>& /* who */)
+        override {
+        cb_function_(cookie);
+    }
+
+   private:
+    on_death_cb_function cb_function_;
+
+    DISALLOW_COPY_AND_ASSIGN(HidlDeathHandler);
+};
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace hidl_callback_util {
+template <typename CallbackType>
+// Provides a class to manage callbacks for the various HIDL interfaces and
+// handle the death of the process hosting each callback.
+class HidlCallbackHandler {
+   public:
+    HidlCallbackHandler()
+        : death_handler_(new HidlDeathHandler<CallbackType>(
+              std::bind(&HidlCallbackHandler::onObjectDeath, this,
+                        std::placeholders::_1))) {}
+    ~HidlCallbackHandler() = default;
+
+    bool addCallback(const sp<CallbackType>& cb) {
+        // TODO(b/33818800): Can't compare proxies yet. So, use the cookie
+        // (callback proxy's raw pointer) to track the death of individual
+        // clients.
+        uint64_t cookie = reinterpret_cast<uint64_t>(cb.get());
+        if (cb_set_.find(cb) != cb_set_.end()) {
+            LOG(WARNING) << "Duplicate death notification registration";
+            return true;
+        }
+        if (!cb->linkToDeath(death_handler_, cookie)) {
+            LOG(ERROR) << "Failed to register death notification";
+            return false;
+        }
+        cb_set_.insert(cb);
+        return true;
+    }
+
+    const std::set<android::sp<CallbackType>>& getCallbacks() {
+        return cb_set_;
+    }
+
+    // Death notification for callbacks.
+    void onObjectDeath(uint64_t cookie) {
+        CallbackType* cb = reinterpret_cast<CallbackType*>(cookie);
+        const auto& iter = cb_set_.find(cb);
+        if (iter == cb_set_.end()) {
+            LOG(ERROR) << "Unknown callback death notification received";
+            return;
+        }
+        cb_set_.erase(iter);
+        LOG(DEBUG) << "Dead callback removed from list";
+    }
+
+    void invalidate() {
+        for (const sp<CallbackType>& cb : cb_set_) {
+            if (!cb->unlinkToDeath(death_handler_)) {
+                LOG(ERROR) << "Failed to deregister death notification";
+            }
+        }
+        cb_set_.clear();
+    }
+
+   private:
+    std::set<sp<CallbackType>> cb_set_;
+    sp<HidlDeathHandler<CallbackType>> death_handler_;
+
+    DISALLOW_COPY_AND_ASSIGN(HidlCallbackHandler);
+};
+
+}  // namespace hidl_callback_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+#endif  // HIDL_CALLBACK_UTIL_H_
diff --git a/wifi/1.3/default/hidl_return_util.h b/wifi/1.3/default/hidl_return_util.h
new file mode 100644
index 0000000..9707444
--- /dev/null
+++ b/wifi/1.3/default/hidl_return_util.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HIDL_RETURN_UTIL_H_
+#define HIDL_RETURN_UTIL_H_
+
+#include "hidl_sync_util.h"
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace hidl_return_util {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * These utility functions are used to invoke a method on the provided
+ * HIDL interface object.
+ * These functions checks if the provided HIDL interface object is valid.
+ * a) if valid, Invokes the corresponding internal implementation function of
+ * the HIDL method. It then invokes the HIDL continuation callback with
+ * the status and any returned values.
+ * b) if invalid, invokes the HIDL continuation callback with the
+ * provided error status and default values.
+ */
+// Use for HIDL methods which return only an instance of WifiStatus.
+template <typename ObjT, typename WorkFuncT, typename... Args>
+Return<void> validateAndCall(
+    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
+    const std::function<void(const WifiStatus&)>& hidl_cb, Args&&... args) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (obj->isValid()) {
+        hidl_cb((obj->*work)(std::forward<Args>(args)...));
+    } else {
+        hidl_cb(createWifiStatus(status_code_if_invalid));
+    }
+    return Void();
+}
+
+// Use for HIDL methods which return only an instance of WifiStatus.
+// This version passes the global lock acquired to the body of the method.
+// Note: Only used by IWifi::stop() currently.
+template <typename ObjT, typename WorkFuncT, typename... Args>
+Return<void> validateAndCallWithLock(
+    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
+    const std::function<void(const WifiStatus&)>& hidl_cb, Args&&... args) {
+    auto lock = hidl_sync_util::acquireGlobalLock();
+    if (obj->isValid()) {
+        hidl_cb((obj->*work)(&lock, std::forward<Args>(args)...));
+    } else {
+        hidl_cb(createWifiStatus(status_code_if_invalid));
+    }
+    return Void();
+}
+
+// Use for HIDL methods which return instance of WifiStatus and a single return
+// value.
+template <typename ObjT, typename WorkFuncT, typename ReturnT, typename... Args>
+Return<void> validateAndCall(
+    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
+    const std::function<void(const WifiStatus&, ReturnT)>& hidl_cb,
+    Args&&... args) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (obj->isValid()) {
+        const auto& ret_pair = (obj->*work)(std::forward<Args>(args)...);
+        const WifiStatus& status = std::get<0>(ret_pair);
+        const auto& ret_value = std::get<1>(ret_pair);
+        hidl_cb(status, ret_value);
+    } else {
+        hidl_cb(createWifiStatus(status_code_if_invalid),
+                typename std::remove_reference<ReturnT>::type());
+    }
+    return Void();
+}
+
+// Use for HIDL methods which return instance of WifiStatus and 2 return
+// values.
+template <typename ObjT, typename WorkFuncT, typename ReturnT1,
+          typename ReturnT2, typename... Args>
+Return<void> validateAndCall(
+    ObjT* obj, WifiStatusCode status_code_if_invalid, WorkFuncT&& work,
+    const std::function<void(const WifiStatus&, ReturnT1, ReturnT2)>& hidl_cb,
+    Args&&... args) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (obj->isValid()) {
+        const auto& ret_tuple = (obj->*work)(std::forward<Args>(args)...);
+        const WifiStatus& status = std::get<0>(ret_tuple);
+        const auto& ret_value1 = std::get<1>(ret_tuple);
+        const auto& ret_value2 = std::get<2>(ret_tuple);
+        hidl_cb(status, ret_value1, ret_value2);
+    } else {
+        hidl_cb(createWifiStatus(status_code_if_invalid),
+                typename std::remove_reference<ReturnT1>::type(),
+                typename std::remove_reference<ReturnT2>::type());
+    }
+    return Void();
+}
+
+}  // namespace hidl_return_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+#endif  // HIDL_RETURN_UTIL_H_
diff --git a/wifi/1.3/default/hidl_struct_util.cpp b/wifi/1.3/default/hidl_struct_util.cpp
new file mode 100644
index 0000000..2e4db70
--- /dev/null
+++ b/wifi/1.3/default/hidl_struct_util.cpp
@@ -0,0 +1,2689 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <utils/SystemClock.h>
+
+#include "hidl_struct_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace hidl_struct_util {
+
+WifiChannelWidthInMhz convertLegacyWifiChannelWidthToHidl(
+    legacy_hal::wifi_channel_width type);
+
+hidl_string safeConvertChar(const char* str, size_t max_len) {
+    const char* c = str;
+    size_t size = 0;
+    while (*c && (unsigned char)*c < 128 && size < max_len) {
+        ++size;
+        ++c;
+    }
+    return hidl_string(str, size);
+}
+
+IWifiChip::ChipCapabilityMask convertLegacyLoggerFeatureToHidlChipCapability(
+    uint32_t feature) {
+    using HidlChipCaps = IWifiChip::ChipCapabilityMask;
+    switch (feature) {
+        case legacy_hal::WIFI_LOGGER_MEMORY_DUMP_SUPPORTED:
+            return HidlChipCaps::DEBUG_MEMORY_FIRMWARE_DUMP;
+        case legacy_hal::WIFI_LOGGER_DRIVER_DUMP_SUPPORTED:
+            return HidlChipCaps::DEBUG_MEMORY_DRIVER_DUMP;
+        case legacy_hal::WIFI_LOGGER_CONNECT_EVENT_SUPPORTED:
+            return HidlChipCaps::DEBUG_RING_BUFFER_CONNECT_EVENT;
+        case legacy_hal::WIFI_LOGGER_POWER_EVENT_SUPPORTED:
+            return HidlChipCaps::DEBUG_RING_BUFFER_POWER_EVENT;
+        case legacy_hal::WIFI_LOGGER_WAKE_LOCK_SUPPORTED:
+            return HidlChipCaps::DEBUG_RING_BUFFER_WAKELOCK_EVENT;
+    };
+    CHECK(false) << "Unknown legacy feature: " << feature;
+    return {};
+}
+
+IWifiStaIface::StaIfaceCapabilityMask
+convertLegacyLoggerFeatureToHidlStaIfaceCapability(uint32_t feature) {
+    using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
+    switch (feature) {
+        case legacy_hal::WIFI_LOGGER_PACKET_FATE_SUPPORTED:
+            return HidlStaIfaceCaps::DEBUG_PACKET_FATE;
+    };
+    CHECK(false) << "Unknown legacy feature: " << feature;
+    return {};
+}
+
+V1_3::IWifiChip::ChipCapabilityMask convertLegacyFeatureToHidlChipCapability(
+    uint32_t feature) {
+    using HidlChipCaps = V1_3::IWifiChip::ChipCapabilityMask;
+    switch (feature) {
+        case WIFI_FEATURE_SET_TX_POWER_LIMIT:
+            return HidlChipCaps::SET_TX_POWER_LIMIT;
+        case WIFI_FEATURE_USE_BODY_HEAD_SAR:
+            return HidlChipCaps::USE_BODY_HEAD_SAR;
+        case WIFI_FEATURE_D2D_RTT:
+            return HidlChipCaps::D2D_RTT;
+        case WIFI_FEATURE_D2AP_RTT:
+            return HidlChipCaps::D2AP_RTT;
+        case WIFI_FEATURE_SET_LATENCY_MODE:
+            return HidlChipCaps::SET_LATENCY_MODE;
+        case WIFI_FEATURE_P2P_RAND_MAC:
+            return HidlChipCaps::P2P_RAND_MAC;
+    };
+    CHECK(false) << "Unknown legacy feature: " << feature;
+    return {};
+}
+
+IWifiStaIface::StaIfaceCapabilityMask
+convertLegacyFeatureToHidlStaIfaceCapability(uint32_t feature) {
+    using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
+    switch (feature) {
+        case WIFI_FEATURE_GSCAN:
+            return HidlStaIfaceCaps::BACKGROUND_SCAN;
+        case WIFI_FEATURE_LINK_LAYER_STATS:
+            return HidlStaIfaceCaps::LINK_LAYER_STATS;
+        case WIFI_FEATURE_RSSI_MONITOR:
+            return HidlStaIfaceCaps::RSSI_MONITOR;
+        case WIFI_FEATURE_CONTROL_ROAMING:
+            return HidlStaIfaceCaps::CONTROL_ROAMING;
+        case WIFI_FEATURE_IE_WHITELIST:
+            return HidlStaIfaceCaps::PROBE_IE_WHITELIST;
+        case WIFI_FEATURE_SCAN_RAND:
+            return HidlStaIfaceCaps::SCAN_RAND;
+        case WIFI_FEATURE_INFRA_5G:
+            return HidlStaIfaceCaps::STA_5G;
+        case WIFI_FEATURE_HOTSPOT:
+            return HidlStaIfaceCaps::HOTSPOT;
+        case WIFI_FEATURE_PNO:
+            return HidlStaIfaceCaps::PNO;
+        case WIFI_FEATURE_TDLS:
+            return HidlStaIfaceCaps::TDLS;
+        case WIFI_FEATURE_TDLS_OFFCHANNEL:
+            return HidlStaIfaceCaps::TDLS_OFFCHANNEL;
+        case WIFI_FEATURE_CONFIG_NDO:
+            return HidlStaIfaceCaps::ND_OFFLOAD;
+        case WIFI_FEATURE_MKEEP_ALIVE:
+            return HidlStaIfaceCaps::KEEP_ALIVE;
+    };
+    CHECK(false) << "Unknown legacy feature: " << feature;
+    return {};
+}
+
+bool convertLegacyFeaturesToHidlChipCapabilities(
+    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
+    uint32_t* hidl_caps) {
+    if (!hidl_caps) {
+        return false;
+    }
+    *hidl_caps = {};
+    using HidlChipCaps = IWifiChip::ChipCapabilityMask;
+    for (const auto feature : {legacy_hal::WIFI_LOGGER_MEMORY_DUMP_SUPPORTED,
+                               legacy_hal::WIFI_LOGGER_DRIVER_DUMP_SUPPORTED,
+                               legacy_hal::WIFI_LOGGER_CONNECT_EVENT_SUPPORTED,
+                               legacy_hal::WIFI_LOGGER_POWER_EVENT_SUPPORTED,
+                               legacy_hal::WIFI_LOGGER_WAKE_LOCK_SUPPORTED}) {
+        if (feature & legacy_logger_feature_set) {
+            *hidl_caps |=
+                convertLegacyLoggerFeatureToHidlChipCapability(feature);
+        }
+    }
+    std::vector<uint32_t> features = {WIFI_FEATURE_SET_TX_POWER_LIMIT,
+                                      WIFI_FEATURE_USE_BODY_HEAD_SAR,
+                                      WIFI_FEATURE_D2D_RTT,
+                                      WIFI_FEATURE_D2AP_RTT,
+                                      WIFI_FEATURE_SET_LATENCY_MODE,
+                                      WIFI_FEATURE_P2P_RAND_MAC};
+    for (const auto feature : features) {
+        if (feature & legacy_feature_set) {
+            *hidl_caps |= convertLegacyFeatureToHidlChipCapability(feature);
+        }
+    }
+
+    // There are no flags for these 3 in the legacy feature set. Adding them to
+    // the set because all the current devices support it.
+    *hidl_caps |= HidlChipCaps::DEBUG_RING_BUFFER_VENDOR_DATA;
+    *hidl_caps |= HidlChipCaps::DEBUG_HOST_WAKE_REASON_STATS;
+    *hidl_caps |= HidlChipCaps::DEBUG_ERROR_ALERTS;
+    return true;
+}
+
+WifiDebugRingBufferFlags convertLegacyDebugRingBufferFlagsToHidl(
+    uint32_t flag) {
+    switch (flag) {
+        case WIFI_RING_BUFFER_FLAG_HAS_BINARY_ENTRIES:
+            return WifiDebugRingBufferFlags::HAS_BINARY_ENTRIES;
+        case WIFI_RING_BUFFER_FLAG_HAS_ASCII_ENTRIES:
+            return WifiDebugRingBufferFlags::HAS_ASCII_ENTRIES;
+    };
+    CHECK(false) << "Unknown legacy flag: " << flag;
+    return {};
+}
+
+bool convertLegacyDebugRingBufferStatusToHidl(
+    const legacy_hal::wifi_ring_buffer_status& legacy_status,
+    WifiDebugRingBufferStatus* hidl_status) {
+    if (!hidl_status) {
+        return false;
+    }
+    *hidl_status = {};
+    hidl_status->ringName =
+        safeConvertChar(reinterpret_cast<const char*>(legacy_status.name),
+                        sizeof(legacy_status.name));
+    hidl_status->flags = 0;
+    for (const auto flag : {WIFI_RING_BUFFER_FLAG_HAS_BINARY_ENTRIES,
+                            WIFI_RING_BUFFER_FLAG_HAS_ASCII_ENTRIES}) {
+        if (flag & legacy_status.flags) {
+            hidl_status->flags |= static_cast<
+                std::underlying_type<WifiDebugRingBufferFlags>::type>(
+                convertLegacyDebugRingBufferFlagsToHidl(flag));
+        }
+    }
+    hidl_status->ringId = legacy_status.ring_id;
+    hidl_status->sizeInBytes = legacy_status.ring_buffer_byte_size;
+    // Calculate free size of the ring the buffer. We don't need to send the
+    // exact read/write pointers that were there in the legacy HAL interface.
+    if (legacy_status.written_bytes >= legacy_status.read_bytes) {
+        hidl_status->freeSizeInBytes =
+            legacy_status.ring_buffer_byte_size -
+            (legacy_status.written_bytes - legacy_status.read_bytes);
+    } else {
+        hidl_status->freeSizeInBytes =
+            legacy_status.read_bytes - legacy_status.written_bytes;
+    }
+    hidl_status->verboseLevel = legacy_status.verbose_level;
+    return true;
+}
+
+bool convertLegacyVectorOfDebugRingBufferStatusToHidl(
+    const std::vector<legacy_hal::wifi_ring_buffer_status>& legacy_status_vec,
+    std::vector<WifiDebugRingBufferStatus>* hidl_status_vec) {
+    if (!hidl_status_vec) {
+        return false;
+    }
+    *hidl_status_vec = {};
+    for (const auto& legacy_status : legacy_status_vec) {
+        WifiDebugRingBufferStatus hidl_status;
+        if (!convertLegacyDebugRingBufferStatusToHidl(legacy_status,
+                                                      &hidl_status)) {
+            return false;
+        }
+        hidl_status_vec->push_back(hidl_status);
+    }
+    return true;
+}
+
+bool convertLegacyWakeReasonStatsToHidl(
+    const legacy_hal::WakeReasonStats& legacy_stats,
+    WifiDebugHostWakeReasonStats* hidl_stats) {
+    if (!hidl_stats) {
+        return false;
+    }
+    *hidl_stats = {};
+    hidl_stats->totalCmdEventWakeCnt =
+        legacy_stats.wake_reason_cnt.total_cmd_event_wake;
+    hidl_stats->cmdEventWakeCntPerType = legacy_stats.cmd_event_wake_cnt;
+    hidl_stats->totalDriverFwLocalWakeCnt =
+        legacy_stats.wake_reason_cnt.total_driver_fw_local_wake;
+    hidl_stats->driverFwLocalWakeCntPerType =
+        legacy_stats.driver_fw_local_wake_cnt;
+    hidl_stats->totalRxPacketWakeCnt =
+        legacy_stats.wake_reason_cnt.total_rx_data_wake;
+    hidl_stats->rxPktWakeDetails.rxUnicastCnt =
+        legacy_stats.wake_reason_cnt.rx_wake_details.rx_unicast_cnt;
+    hidl_stats->rxPktWakeDetails.rxMulticastCnt =
+        legacy_stats.wake_reason_cnt.rx_wake_details.rx_multicast_cnt;
+    hidl_stats->rxPktWakeDetails.rxBroadcastCnt =
+        legacy_stats.wake_reason_cnt.rx_wake_details.rx_broadcast_cnt;
+    hidl_stats->rxMulticastPkWakeDetails.ipv4RxMulticastAddrCnt =
+        legacy_stats.wake_reason_cnt.rx_multicast_wake_pkt_info
+            .ipv4_rx_multicast_addr_cnt;
+    hidl_stats->rxMulticastPkWakeDetails.ipv6RxMulticastAddrCnt =
+        legacy_stats.wake_reason_cnt.rx_multicast_wake_pkt_info
+            .ipv6_rx_multicast_addr_cnt;
+    hidl_stats->rxMulticastPkWakeDetails.otherRxMulticastAddrCnt =
+        legacy_stats.wake_reason_cnt.rx_multicast_wake_pkt_info
+            .other_rx_multicast_addr_cnt;
+    hidl_stats->rxIcmpPkWakeDetails.icmpPkt =
+        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp_pkt;
+    hidl_stats->rxIcmpPkWakeDetails.icmp6Pkt =
+        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_pkt;
+    hidl_stats->rxIcmpPkWakeDetails.icmp6Ra =
+        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_ra;
+    hidl_stats->rxIcmpPkWakeDetails.icmp6Na =
+        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_na;
+    hidl_stats->rxIcmpPkWakeDetails.icmp6Ns =
+        legacy_stats.wake_reason_cnt.rx_wake_pkt_classification_info.icmp6_ns;
+    return true;
+}
+
+legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy(
+    V1_1::IWifiChip::TxPowerScenario hidl_scenario) {
+    switch (hidl_scenario) {
+        // This is the only supported scenario for V1_1
+        case V1_1::IWifiChip::TxPowerScenario::VOICE_CALL:
+            return legacy_hal::WIFI_POWER_SCENARIO_VOICE_CALL;
+    };
+    CHECK(false);
+}
+
+legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy_1_2(
+    V1_2::IWifiChip::TxPowerScenario hidl_scenario) {
+    switch (hidl_scenario) {
+        // This is the only supported scenario for V1_1
+        case V1_2::IWifiChip::TxPowerScenario::VOICE_CALL:
+            return legacy_hal::WIFI_POWER_SCENARIO_VOICE_CALL;
+        // Those are the supported scenarios for V1_2
+        case V1_2::IWifiChip::TxPowerScenario::ON_HEAD_CELL_OFF:
+            return legacy_hal::WIFI_POWER_SCENARIO_ON_HEAD_CELL_OFF;
+        case V1_2::IWifiChip::TxPowerScenario::ON_HEAD_CELL_ON:
+            return legacy_hal::WIFI_POWER_SCENARIO_ON_HEAD_CELL_ON;
+        case V1_2::IWifiChip::TxPowerScenario::ON_BODY_CELL_OFF:
+            return legacy_hal::WIFI_POWER_SCENARIO_ON_BODY_CELL_OFF;
+        case V1_2::IWifiChip::TxPowerScenario::ON_BODY_CELL_ON:
+            return legacy_hal::WIFI_POWER_SCENARIO_ON_BODY_CELL_ON;
+    };
+    CHECK(false);
+}
+
+legacy_hal::wifi_latency_mode convertHidlLatencyModeToLegacy(
+    IWifiChip::LatencyMode hidl_latency_mode) {
+    switch (hidl_latency_mode) {
+        case IWifiChip::LatencyMode::NORMAL:
+            return legacy_hal::WIFI_LATENCY_MODE_NORMAL;
+        case IWifiChip::LatencyMode::LOW:
+            return legacy_hal::WIFI_LATENCY_MODE_LOW;
+    }
+    CHECK(false);
+}
+
+bool convertLegacyWifiMacInfoToHidl(
+    const legacy_hal::WifiMacInfo& legacy_mac_info,
+    V1_2::IWifiChipEventCallback::RadioModeInfo* hidl_radio_mode_info) {
+    if (!hidl_radio_mode_info) {
+        return false;
+    }
+    *hidl_radio_mode_info = {};
+
+    hidl_radio_mode_info->radioId = legacy_mac_info.wlan_mac_id;
+    // Convert from bitmask of bands in the legacy HAL to enum value in
+    // the HIDL interface.
+    if (legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_2_4_BAND &&
+        legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_5_0_BAND) {
+        hidl_radio_mode_info->bandInfo = WifiBand::BAND_24GHZ_5GHZ;
+    } else if (legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_2_4_BAND) {
+        hidl_radio_mode_info->bandInfo = WifiBand::BAND_24GHZ;
+    } else if (legacy_mac_info.mac_band & legacy_hal::WLAN_MAC_5_0_BAND) {
+        hidl_radio_mode_info->bandInfo = WifiBand::BAND_5GHZ;
+    } else {
+        hidl_radio_mode_info->bandInfo = WifiBand::BAND_UNSPECIFIED;
+    }
+    std::vector<V1_2::IWifiChipEventCallback::IfaceInfo> iface_info_vec;
+    for (const auto& legacy_iface_info : legacy_mac_info.iface_infos) {
+        V1_2::IWifiChipEventCallback::IfaceInfo iface_info;
+        iface_info.name = legacy_iface_info.name;
+        iface_info.channel = legacy_iface_info.channel;
+        iface_info_vec.push_back(iface_info);
+    }
+    hidl_radio_mode_info->ifaceInfos = iface_info_vec;
+    return true;
+}
+
+bool convertLegacyWifiMacInfosToHidl(
+    const std::vector<legacy_hal::WifiMacInfo>& legacy_mac_infos,
+    std::vector<V1_2::IWifiChipEventCallback::RadioModeInfo>*
+        hidl_radio_mode_infos) {
+    if (!hidl_radio_mode_infos) {
+        return false;
+    }
+    *hidl_radio_mode_infos = {};
+
+    for (const auto& legacy_mac_info : legacy_mac_infos) {
+        V1_2::IWifiChipEventCallback::RadioModeInfo hidl_radio_mode_info;
+        if (!convertLegacyWifiMacInfoToHidl(legacy_mac_info,
+                                            &hidl_radio_mode_info)) {
+            return false;
+        }
+        hidl_radio_mode_infos->push_back(hidl_radio_mode_info);
+    }
+    return true;
+}
+
+bool convertLegacyFeaturesToHidlStaCapabilities(
+    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
+    uint32_t* hidl_caps) {
+    if (!hidl_caps) {
+        return false;
+    }
+    *hidl_caps = {};
+    using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
+    for (const auto feature : {legacy_hal::WIFI_LOGGER_PACKET_FATE_SUPPORTED}) {
+        if (feature & legacy_logger_feature_set) {
+            *hidl_caps |=
+                convertLegacyLoggerFeatureToHidlStaIfaceCapability(feature);
+        }
+    }
+    for (const auto feature :
+         {WIFI_FEATURE_GSCAN, WIFI_FEATURE_LINK_LAYER_STATS,
+          WIFI_FEATURE_RSSI_MONITOR, WIFI_FEATURE_CONTROL_ROAMING,
+          WIFI_FEATURE_IE_WHITELIST, WIFI_FEATURE_SCAN_RAND,
+          WIFI_FEATURE_INFRA_5G, WIFI_FEATURE_HOTSPOT, WIFI_FEATURE_PNO,
+          WIFI_FEATURE_TDLS, WIFI_FEATURE_TDLS_OFFCHANNEL,
+          WIFI_FEATURE_CONFIG_NDO, WIFI_FEATURE_MKEEP_ALIVE}) {
+        if (feature & legacy_feature_set) {
+            *hidl_caps |= convertLegacyFeatureToHidlStaIfaceCapability(feature);
+        }
+    }
+    // There is no flag for this one in the legacy feature set. Adding it to the
+    // set because all the current devices support it.
+    *hidl_caps |= HidlStaIfaceCaps::APF;
+    return true;
+}
+
+bool convertLegacyApfCapabilitiesToHidl(
+    const legacy_hal::PacketFilterCapabilities& legacy_caps,
+    StaApfPacketFilterCapabilities* hidl_caps) {
+    if (!hidl_caps) {
+        return false;
+    }
+    *hidl_caps = {};
+    hidl_caps->version = legacy_caps.version;
+    hidl_caps->maxLength = legacy_caps.max_len;
+    return true;
+}
+
+uint8_t convertHidlGscanReportEventFlagToLegacy(
+    StaBackgroundScanBucketEventReportSchemeMask hidl_flag) {
+    using HidlFlag = StaBackgroundScanBucketEventReportSchemeMask;
+    switch (hidl_flag) {
+        case HidlFlag::EACH_SCAN:
+            return REPORT_EVENTS_EACH_SCAN;
+        case HidlFlag::FULL_RESULTS:
+            return REPORT_EVENTS_FULL_RESULTS;
+        case HidlFlag::NO_BATCH:
+            return REPORT_EVENTS_NO_BATCH;
+    };
+    CHECK(false);
+}
+
+StaScanDataFlagMask convertLegacyGscanDataFlagToHidl(uint8_t legacy_flag) {
+    switch (legacy_flag) {
+        case legacy_hal::WIFI_SCAN_FLAG_INTERRUPTED:
+            return StaScanDataFlagMask::INTERRUPTED;
+    };
+    CHECK(false) << "Unknown legacy flag: " << legacy_flag;
+    // To silence the compiler warning about reaching the end of non-void
+    // function.
+    return {};
+}
+
+bool convertLegacyGscanCapabilitiesToHidl(
+    const legacy_hal::wifi_gscan_capabilities& legacy_caps,
+    StaBackgroundScanCapabilities* hidl_caps) {
+    if (!hidl_caps) {
+        return false;
+    }
+    *hidl_caps = {};
+    hidl_caps->maxCacheSize = legacy_caps.max_scan_cache_size;
+    hidl_caps->maxBuckets = legacy_caps.max_scan_buckets;
+    hidl_caps->maxApCachePerScan = legacy_caps.max_ap_cache_per_scan;
+    hidl_caps->maxReportingThreshold = legacy_caps.max_scan_reporting_threshold;
+    return true;
+}
+
+legacy_hal::wifi_band convertHidlWifiBandToLegacy(WifiBand band) {
+    switch (band) {
+        case WifiBand::BAND_UNSPECIFIED:
+            return legacy_hal::WIFI_BAND_UNSPECIFIED;
+        case WifiBand::BAND_24GHZ:
+            return legacy_hal::WIFI_BAND_BG;
+        case WifiBand::BAND_5GHZ:
+            return legacy_hal::WIFI_BAND_A;
+        case WifiBand::BAND_5GHZ_DFS:
+            return legacy_hal::WIFI_BAND_A_DFS;
+        case WifiBand::BAND_5GHZ_WITH_DFS:
+            return legacy_hal::WIFI_BAND_A_WITH_DFS;
+        case WifiBand::BAND_24GHZ_5GHZ:
+            return legacy_hal::WIFI_BAND_ABG;
+        case WifiBand::BAND_24GHZ_5GHZ_WITH_DFS:
+            return legacy_hal::WIFI_BAND_ABG_WITH_DFS;
+    };
+    CHECK(false);
+}
+
+bool convertHidlGscanParamsToLegacy(
+    const StaBackgroundScanParameters& hidl_scan_params,
+    legacy_hal::wifi_scan_cmd_params* legacy_scan_params) {
+    if (!legacy_scan_params) {
+        return false;
+    }
+    *legacy_scan_params = {};
+    legacy_scan_params->base_period = hidl_scan_params.basePeriodInMs;
+    legacy_scan_params->max_ap_per_scan = hidl_scan_params.maxApPerScan;
+    legacy_scan_params->report_threshold_percent =
+        hidl_scan_params.reportThresholdPercent;
+    legacy_scan_params->report_threshold_num_scans =
+        hidl_scan_params.reportThresholdNumScans;
+    if (hidl_scan_params.buckets.size() > MAX_BUCKETS) {
+        return false;
+    }
+    legacy_scan_params->num_buckets = hidl_scan_params.buckets.size();
+    for (uint32_t bucket_idx = 0; bucket_idx < hidl_scan_params.buckets.size();
+         bucket_idx++) {
+        const StaBackgroundScanBucketParameters& hidl_bucket_spec =
+            hidl_scan_params.buckets[bucket_idx];
+        legacy_hal::wifi_scan_bucket_spec& legacy_bucket_spec =
+            legacy_scan_params->buckets[bucket_idx];
+        if (hidl_bucket_spec.bucketIdx >= MAX_BUCKETS) {
+            return false;
+        }
+        legacy_bucket_spec.bucket = hidl_bucket_spec.bucketIdx;
+        legacy_bucket_spec.band =
+            convertHidlWifiBandToLegacy(hidl_bucket_spec.band);
+        legacy_bucket_spec.period = hidl_bucket_spec.periodInMs;
+        legacy_bucket_spec.max_period =
+            hidl_bucket_spec.exponentialMaxPeriodInMs;
+        legacy_bucket_spec.base = hidl_bucket_spec.exponentialBase;
+        legacy_bucket_spec.step_count = hidl_bucket_spec.exponentialStepCount;
+        legacy_bucket_spec.report_events = 0;
+        using HidlFlag = StaBackgroundScanBucketEventReportSchemeMask;
+        for (const auto flag : {HidlFlag::EACH_SCAN, HidlFlag::FULL_RESULTS,
+                                HidlFlag::NO_BATCH}) {
+            if (hidl_bucket_spec.eventReportScheme &
+                static_cast<std::underlying_type<HidlFlag>::type>(flag)) {
+                legacy_bucket_spec.report_events |=
+                    convertHidlGscanReportEventFlagToLegacy(flag);
+            }
+        }
+        if (hidl_bucket_spec.frequencies.size() > MAX_CHANNELS) {
+            return false;
+        }
+        legacy_bucket_spec.num_channels = hidl_bucket_spec.frequencies.size();
+        for (uint32_t freq_idx = 0;
+             freq_idx < hidl_bucket_spec.frequencies.size(); freq_idx++) {
+            legacy_bucket_spec.channels[freq_idx].channel =
+                hidl_bucket_spec.frequencies[freq_idx];
+        }
+    }
+    return true;
+}
+
+bool convertLegacyIeToHidl(
+    const legacy_hal::wifi_information_element& legacy_ie,
+    WifiInformationElement* hidl_ie) {
+    if (!hidl_ie) {
+        return false;
+    }
+    *hidl_ie = {};
+    hidl_ie->id = legacy_ie.id;
+    hidl_ie->data =
+        std::vector<uint8_t>(legacy_ie.data, legacy_ie.data + legacy_ie.len);
+    return true;
+}
+
+bool convertLegacyIeBlobToHidl(const uint8_t* ie_blob, uint32_t ie_blob_len,
+                               std::vector<WifiInformationElement>* hidl_ies) {
+    if (!ie_blob || !hidl_ies) {
+        return false;
+    }
+    *hidl_ies = {};
+    const uint8_t* ies_begin = ie_blob;
+    const uint8_t* ies_end = ie_blob + ie_blob_len;
+    const uint8_t* next_ie = ies_begin;
+    using wifi_ie = legacy_hal::wifi_information_element;
+    constexpr size_t kIeHeaderLen = sizeof(wifi_ie);
+    // Each IE should atleast have the header (i.e |id| & |len| fields).
+    while (next_ie + kIeHeaderLen <= ies_end) {
+        const wifi_ie& legacy_ie = (*reinterpret_cast<const wifi_ie*>(next_ie));
+        uint32_t curr_ie_len = kIeHeaderLen + legacy_ie.len;
+        if (next_ie + curr_ie_len > ies_end) {
+            LOG(ERROR) << "Error parsing IE blob. Next IE: " << (void*)next_ie
+                       << ", Curr IE len: " << curr_ie_len
+                       << ", IEs End: " << (void*)ies_end;
+            break;
+        }
+        WifiInformationElement hidl_ie;
+        if (!convertLegacyIeToHidl(legacy_ie, &hidl_ie)) {
+            LOG(ERROR) << "Error converting IE. Id: " << legacy_ie.id
+                       << ", len: " << legacy_ie.len;
+            break;
+        }
+        hidl_ies->push_back(std::move(hidl_ie));
+        next_ie += curr_ie_len;
+    }
+    // Check if the blob has been fully consumed.
+    if (next_ie != ies_end) {
+        LOG(ERROR) << "Failed to fully parse IE blob. Next IE: "
+                   << (void*)next_ie << ", IEs End: " << (void*)ies_end;
+    }
+    return true;
+}
+
+bool convertLegacyGscanResultToHidl(
+    const legacy_hal::wifi_scan_result& legacy_scan_result, bool has_ie_data,
+    StaScanResult* hidl_scan_result) {
+    if (!hidl_scan_result) {
+        return false;
+    }
+    *hidl_scan_result = {};
+    hidl_scan_result->timeStampInUs = legacy_scan_result.ts;
+    hidl_scan_result->ssid = std::vector<uint8_t>(
+        legacy_scan_result.ssid,
+        legacy_scan_result.ssid + strnlen(legacy_scan_result.ssid,
+                                          sizeof(legacy_scan_result.ssid) - 1));
+    memcpy(hidl_scan_result->bssid.data(), legacy_scan_result.bssid,
+           hidl_scan_result->bssid.size());
+    hidl_scan_result->frequency = legacy_scan_result.channel;
+    hidl_scan_result->rssi = legacy_scan_result.rssi;
+    hidl_scan_result->beaconPeriodInMs = legacy_scan_result.beacon_period;
+    hidl_scan_result->capability = legacy_scan_result.capability;
+    if (has_ie_data) {
+        std::vector<WifiInformationElement> ies;
+        if (!convertLegacyIeBlobToHidl(
+                reinterpret_cast<const uint8_t*>(legacy_scan_result.ie_data),
+                legacy_scan_result.ie_length, &ies)) {
+            return false;
+        }
+        hidl_scan_result->informationElements = std::move(ies);
+    }
+    return true;
+}
+
+bool convertLegacyCachedGscanResultsToHidl(
+    const legacy_hal::wifi_cached_scan_results& legacy_cached_scan_result,
+    StaScanData* hidl_scan_data) {
+    if (!hidl_scan_data) {
+        return false;
+    }
+    *hidl_scan_data = {};
+    hidl_scan_data->flags = 0;
+    for (const auto flag : {legacy_hal::WIFI_SCAN_FLAG_INTERRUPTED}) {
+        if (legacy_cached_scan_result.flags & flag) {
+            hidl_scan_data->flags |=
+                static_cast<std::underlying_type<StaScanDataFlagMask>::type>(
+                    convertLegacyGscanDataFlagToHidl(flag));
+        }
+    }
+    hidl_scan_data->bucketsScanned = legacy_cached_scan_result.buckets_scanned;
+
+    CHECK(legacy_cached_scan_result.num_results >= 0 &&
+          legacy_cached_scan_result.num_results <= MAX_AP_CACHE_PER_SCAN);
+    std::vector<StaScanResult> hidl_scan_results;
+    for (int32_t result_idx = 0;
+         result_idx < legacy_cached_scan_result.num_results; result_idx++) {
+        StaScanResult hidl_scan_result;
+        if (!convertLegacyGscanResultToHidl(
+                legacy_cached_scan_result.results[result_idx], false,
+                &hidl_scan_result)) {
+            return false;
+        }
+        hidl_scan_results.push_back(hidl_scan_result);
+    }
+    hidl_scan_data->results = std::move(hidl_scan_results);
+    return true;
+}
+
+bool convertLegacyVectorOfCachedGscanResultsToHidl(
+    const std::vector<legacy_hal::wifi_cached_scan_results>&
+        legacy_cached_scan_results,
+    std::vector<StaScanData>* hidl_scan_datas) {
+    if (!hidl_scan_datas) {
+        return false;
+    }
+    *hidl_scan_datas = {};
+    for (const auto& legacy_cached_scan_result : legacy_cached_scan_results) {
+        StaScanData hidl_scan_data;
+        if (!convertLegacyCachedGscanResultsToHidl(legacy_cached_scan_result,
+                                                   &hidl_scan_data)) {
+            return false;
+        }
+        hidl_scan_datas->push_back(hidl_scan_data);
+    }
+    return true;
+}
+
+WifiDebugTxPacketFate convertLegacyDebugTxPacketFateToHidl(
+    legacy_hal::wifi_tx_packet_fate fate) {
+    switch (fate) {
+        case legacy_hal::TX_PKT_FATE_ACKED:
+            return WifiDebugTxPacketFate::ACKED;
+        case legacy_hal::TX_PKT_FATE_SENT:
+            return WifiDebugTxPacketFate::SENT;
+        case legacy_hal::TX_PKT_FATE_FW_QUEUED:
+            return WifiDebugTxPacketFate::FW_QUEUED;
+        case legacy_hal::TX_PKT_FATE_FW_DROP_INVALID:
+            return WifiDebugTxPacketFate::FW_DROP_INVALID;
+        case legacy_hal::TX_PKT_FATE_FW_DROP_NOBUFS:
+            return WifiDebugTxPacketFate::FW_DROP_NOBUFS;
+        case legacy_hal::TX_PKT_FATE_FW_DROP_OTHER:
+            return WifiDebugTxPacketFate::FW_DROP_OTHER;
+        case legacy_hal::TX_PKT_FATE_DRV_QUEUED:
+            return WifiDebugTxPacketFate::DRV_QUEUED;
+        case legacy_hal::TX_PKT_FATE_DRV_DROP_INVALID:
+            return WifiDebugTxPacketFate::DRV_DROP_INVALID;
+        case legacy_hal::TX_PKT_FATE_DRV_DROP_NOBUFS:
+            return WifiDebugTxPacketFate::DRV_DROP_NOBUFS;
+        case legacy_hal::TX_PKT_FATE_DRV_DROP_OTHER:
+            return WifiDebugTxPacketFate::DRV_DROP_OTHER;
+    };
+    CHECK(false) << "Unknown legacy fate type: " << fate;
+}
+
+WifiDebugRxPacketFate convertLegacyDebugRxPacketFateToHidl(
+    legacy_hal::wifi_rx_packet_fate fate) {
+    switch (fate) {
+        case legacy_hal::RX_PKT_FATE_SUCCESS:
+            return WifiDebugRxPacketFate::SUCCESS;
+        case legacy_hal::RX_PKT_FATE_FW_QUEUED:
+            return WifiDebugRxPacketFate::FW_QUEUED;
+        case legacy_hal::RX_PKT_FATE_FW_DROP_FILTER:
+            return WifiDebugRxPacketFate::FW_DROP_FILTER;
+        case legacy_hal::RX_PKT_FATE_FW_DROP_INVALID:
+            return WifiDebugRxPacketFate::FW_DROP_INVALID;
+        case legacy_hal::RX_PKT_FATE_FW_DROP_NOBUFS:
+            return WifiDebugRxPacketFate::FW_DROP_NOBUFS;
+        case legacy_hal::RX_PKT_FATE_FW_DROP_OTHER:
+            return WifiDebugRxPacketFate::FW_DROP_OTHER;
+        case legacy_hal::RX_PKT_FATE_DRV_QUEUED:
+            return WifiDebugRxPacketFate::DRV_QUEUED;
+        case legacy_hal::RX_PKT_FATE_DRV_DROP_FILTER:
+            return WifiDebugRxPacketFate::DRV_DROP_FILTER;
+        case legacy_hal::RX_PKT_FATE_DRV_DROP_INVALID:
+            return WifiDebugRxPacketFate::DRV_DROP_INVALID;
+        case legacy_hal::RX_PKT_FATE_DRV_DROP_NOBUFS:
+            return WifiDebugRxPacketFate::DRV_DROP_NOBUFS;
+        case legacy_hal::RX_PKT_FATE_DRV_DROP_OTHER:
+            return WifiDebugRxPacketFate::DRV_DROP_OTHER;
+    };
+    CHECK(false) << "Unknown legacy fate type: " << fate;
+}
+
+WifiDebugPacketFateFrameType convertLegacyDebugPacketFateFrameTypeToHidl(
+    legacy_hal::frame_type type) {
+    switch (type) {
+        case legacy_hal::FRAME_TYPE_UNKNOWN:
+            return WifiDebugPacketFateFrameType::UNKNOWN;
+        case legacy_hal::FRAME_TYPE_ETHERNET_II:
+            return WifiDebugPacketFateFrameType::ETHERNET_II;
+        case legacy_hal::FRAME_TYPE_80211_MGMT:
+            return WifiDebugPacketFateFrameType::MGMT_80211;
+    };
+    CHECK(false) << "Unknown legacy frame type: " << type;
+}
+
+bool convertLegacyDebugPacketFateFrameToHidl(
+    const legacy_hal::frame_info& legacy_frame,
+    WifiDebugPacketFateFrameInfo* hidl_frame) {
+    if (!hidl_frame) {
+        return false;
+    }
+    *hidl_frame = {};
+    hidl_frame->frameType =
+        convertLegacyDebugPacketFateFrameTypeToHidl(legacy_frame.payload_type);
+    hidl_frame->frameLen = legacy_frame.frame_len;
+    hidl_frame->driverTimestampUsec = legacy_frame.driver_timestamp_usec;
+    hidl_frame->firmwareTimestampUsec = legacy_frame.firmware_timestamp_usec;
+    const uint8_t* frame_begin = reinterpret_cast<const uint8_t*>(
+        legacy_frame.frame_content.ethernet_ii_bytes);
+    hidl_frame->frameContent =
+        std::vector<uint8_t>(frame_begin, frame_begin + legacy_frame.frame_len);
+    return true;
+}
+
+bool convertLegacyDebugTxPacketFateToHidl(
+    const legacy_hal::wifi_tx_report& legacy_fate,
+    WifiDebugTxPacketFateReport* hidl_fate) {
+    if (!hidl_fate) {
+        return false;
+    }
+    *hidl_fate = {};
+    hidl_fate->fate = convertLegacyDebugTxPacketFateToHidl(legacy_fate.fate);
+    return convertLegacyDebugPacketFateFrameToHidl(legacy_fate.frame_inf,
+                                                   &hidl_fate->frameInfo);
+}
+
+bool convertLegacyVectorOfDebugTxPacketFateToHidl(
+    const std::vector<legacy_hal::wifi_tx_report>& legacy_fates,
+    std::vector<WifiDebugTxPacketFateReport>* hidl_fates) {
+    if (!hidl_fates) {
+        return false;
+    }
+    *hidl_fates = {};
+    for (const auto& legacy_fate : legacy_fates) {
+        WifiDebugTxPacketFateReport hidl_fate;
+        if (!convertLegacyDebugTxPacketFateToHidl(legacy_fate, &hidl_fate)) {
+            return false;
+        }
+        hidl_fates->push_back(hidl_fate);
+    }
+    return true;
+}
+
+bool convertLegacyDebugRxPacketFateToHidl(
+    const legacy_hal::wifi_rx_report& legacy_fate,
+    WifiDebugRxPacketFateReport* hidl_fate) {
+    if (!hidl_fate) {
+        return false;
+    }
+    *hidl_fate = {};
+    hidl_fate->fate = convertLegacyDebugRxPacketFateToHidl(legacy_fate.fate);
+    return convertLegacyDebugPacketFateFrameToHidl(legacy_fate.frame_inf,
+                                                   &hidl_fate->frameInfo);
+}
+
+bool convertLegacyVectorOfDebugRxPacketFateToHidl(
+    const std::vector<legacy_hal::wifi_rx_report>& legacy_fates,
+    std::vector<WifiDebugRxPacketFateReport>* hidl_fates) {
+    if (!hidl_fates) {
+        return false;
+    }
+    *hidl_fates = {};
+    for (const auto& legacy_fate : legacy_fates) {
+        WifiDebugRxPacketFateReport hidl_fate;
+        if (!convertLegacyDebugRxPacketFateToHidl(legacy_fate, &hidl_fate)) {
+            return false;
+        }
+        hidl_fates->push_back(hidl_fate);
+    }
+    return true;
+}
+
+bool convertLegacyLinkLayerRadioStatsToHidl(
+    const legacy_hal::LinkLayerRadioStats& legacy_radio_stat,
+    V1_3::StaLinkLayerRadioStats* hidl_radio_stat) {
+    if (!hidl_radio_stat) {
+        return false;
+    }
+    *hidl_radio_stat = {};
+
+    hidl_radio_stat->V1_0.onTimeInMs = legacy_radio_stat.stats.on_time;
+    hidl_radio_stat->V1_0.txTimeInMs = legacy_radio_stat.stats.tx_time;
+    hidl_radio_stat->V1_0.rxTimeInMs = legacy_radio_stat.stats.rx_time;
+    hidl_radio_stat->V1_0.onTimeInMsForScan =
+        legacy_radio_stat.stats.on_time_scan;
+    hidl_radio_stat->V1_0.txTimeInMsPerLevel =
+        legacy_radio_stat.tx_time_per_levels;
+    hidl_radio_stat->onTimeInMsForNanScan = legacy_radio_stat.stats.on_time_nbd;
+    hidl_radio_stat->onTimeInMsForBgScan =
+        legacy_radio_stat.stats.on_time_gscan;
+    hidl_radio_stat->onTimeInMsForRoamScan =
+        legacy_radio_stat.stats.on_time_roam_scan;
+    hidl_radio_stat->onTimeInMsForPnoScan =
+        legacy_radio_stat.stats.on_time_pno_scan;
+    hidl_radio_stat->onTimeInMsForHs20Scan =
+        legacy_radio_stat.stats.on_time_hs20;
+
+    std::vector<V1_3::WifiChannelStats> hidl_channel_stats;
+
+    for (const auto& channel_stat : legacy_radio_stat.channel_stats) {
+        V1_3::WifiChannelStats hidl_channel_stat;
+        hidl_channel_stat.onTimeInMs = channel_stat.on_time;
+        hidl_channel_stat.ccaBusyTimeInMs = channel_stat.cca_busy_time;
+        /*
+         * TODO once b/119142899 is fixed,
+         * replace below code with convertLegacyWifiChannelInfoToHidl()
+         */
+        hidl_channel_stat.channel.width = WifiChannelWidthInMhz::WIDTH_20;
+        hidl_channel_stat.channel.centerFreq = channel_stat.channel.center_freq;
+        hidl_channel_stat.channel.centerFreq0 =
+            channel_stat.channel.center_freq0;
+        hidl_channel_stat.channel.centerFreq1 =
+            channel_stat.channel.center_freq1;
+        hidl_channel_stats.push_back(hidl_channel_stat);
+    }
+
+    hidl_radio_stat->channelStats = hidl_channel_stats;
+
+    return true;
+}
+
+bool convertLegacyLinkLayerStatsToHidl(
+    const legacy_hal::LinkLayerStats& legacy_stats,
+    V1_3::StaLinkLayerStats* hidl_stats) {
+    if (!hidl_stats) {
+        return false;
+    }
+    *hidl_stats = {};
+    // iface legacy_stats conversion.
+    hidl_stats->iface.beaconRx = legacy_stats.iface.beacon_rx;
+    hidl_stats->iface.avgRssiMgmt = legacy_stats.iface.rssi_mgmt;
+    hidl_stats->iface.wmeBePktStats.rxMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].rx_mpdu;
+    hidl_stats->iface.wmeBePktStats.txMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].tx_mpdu;
+    hidl_stats->iface.wmeBePktStats.lostMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].mpdu_lost;
+    hidl_stats->iface.wmeBePktStats.retries =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].retries;
+    hidl_stats->iface.wmeBkPktStats.rxMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].rx_mpdu;
+    hidl_stats->iface.wmeBkPktStats.txMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].tx_mpdu;
+    hidl_stats->iface.wmeBkPktStats.lostMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].mpdu_lost;
+    hidl_stats->iface.wmeBkPktStats.retries =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].retries;
+    hidl_stats->iface.wmeViPktStats.rxMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].rx_mpdu;
+    hidl_stats->iface.wmeViPktStats.txMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].tx_mpdu;
+    hidl_stats->iface.wmeViPktStats.lostMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].mpdu_lost;
+    hidl_stats->iface.wmeViPktStats.retries =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].retries;
+    hidl_stats->iface.wmeVoPktStats.rxMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].rx_mpdu;
+    hidl_stats->iface.wmeVoPktStats.txMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].tx_mpdu;
+    hidl_stats->iface.wmeVoPktStats.lostMpdu =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].mpdu_lost;
+    hidl_stats->iface.wmeVoPktStats.retries =
+        legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].retries;
+    // radio legacy_stats conversion.
+    std::vector<V1_3::StaLinkLayerRadioStats> hidl_radios_stats;
+    for (const auto& legacy_radio_stats : legacy_stats.radios) {
+        V1_3::StaLinkLayerRadioStats hidl_radio_stats;
+        if (!convertLegacyLinkLayerRadioStatsToHidl(legacy_radio_stats,
+                                                    &hidl_radio_stats)) {
+            return false;
+        }
+        hidl_radios_stats.push_back(hidl_radio_stats);
+    }
+    hidl_stats->radios = hidl_radios_stats;
+    // Timestamp in the HAL wrapper here since it's not provided in the legacy
+    // HAL API.
+    hidl_stats->timeStampInMs = uptimeMillis();
+    return true;
+}
+
+bool convertLegacyRoamingCapabilitiesToHidl(
+    const legacy_hal::wifi_roaming_capabilities& legacy_caps,
+    StaRoamingCapabilities* hidl_caps) {
+    if (!hidl_caps) {
+        return false;
+    }
+    *hidl_caps = {};
+    hidl_caps->maxBlacklistSize = legacy_caps.max_blacklist_size;
+    hidl_caps->maxWhitelistSize = legacy_caps.max_whitelist_size;
+    return true;
+}
+
+bool convertHidlRoamingConfigToLegacy(
+    const StaRoamingConfig& hidl_config,
+    legacy_hal::wifi_roaming_config* legacy_config) {
+    if (!legacy_config) {
+        return false;
+    }
+    *legacy_config = {};
+    if (hidl_config.bssidBlacklist.size() > MAX_BLACKLIST_BSSID ||
+        hidl_config.ssidWhitelist.size() > MAX_WHITELIST_SSID) {
+        return false;
+    }
+    legacy_config->num_blacklist_bssid = hidl_config.bssidBlacklist.size();
+    uint32_t i = 0;
+    for (const auto& bssid : hidl_config.bssidBlacklist) {
+        CHECK(bssid.size() == sizeof(legacy_hal::mac_addr));
+        memcpy(legacy_config->blacklist_bssid[i++], bssid.data(), bssid.size());
+    }
+    legacy_config->num_whitelist_ssid = hidl_config.ssidWhitelist.size();
+    i = 0;
+    for (const auto& ssid : hidl_config.ssidWhitelist) {
+        CHECK(ssid.size() <= sizeof(legacy_hal::ssid_t::ssid_str));
+        legacy_config->whitelist_ssid[i].length = ssid.size();
+        memcpy(legacy_config->whitelist_ssid[i].ssid_str, ssid.data(),
+               ssid.size());
+        i++;
+    }
+    return true;
+}
+
+legacy_hal::fw_roaming_state_t convertHidlRoamingStateToLegacy(
+    StaRoamingState state) {
+    switch (state) {
+        case StaRoamingState::ENABLED:
+            return legacy_hal::ROAMING_ENABLE;
+        case StaRoamingState::DISABLED:
+            return legacy_hal::ROAMING_DISABLE;
+    };
+    CHECK(false);
+}
+
+legacy_hal::NanMatchAlg convertHidlNanMatchAlgToLegacy(NanMatchAlg type) {
+    switch (type) {
+        case NanMatchAlg::MATCH_ONCE:
+            return legacy_hal::NAN_MATCH_ALG_MATCH_ONCE;
+        case NanMatchAlg::MATCH_CONTINUOUS:
+            return legacy_hal::NAN_MATCH_ALG_MATCH_CONTINUOUS;
+        case NanMatchAlg::MATCH_NEVER:
+            return legacy_hal::NAN_MATCH_ALG_MATCH_NEVER;
+    }
+    CHECK(false);
+}
+
+legacy_hal::NanPublishType convertHidlNanPublishTypeToLegacy(
+    NanPublishType type) {
+    switch (type) {
+        case NanPublishType::UNSOLICITED:
+            return legacy_hal::NAN_PUBLISH_TYPE_UNSOLICITED;
+        case NanPublishType::SOLICITED:
+            return legacy_hal::NAN_PUBLISH_TYPE_SOLICITED;
+        case NanPublishType::UNSOLICITED_SOLICITED:
+            return legacy_hal::NAN_PUBLISH_TYPE_UNSOLICITED_SOLICITED;
+    }
+    CHECK(false);
+}
+
+legacy_hal::NanTxType convertHidlNanTxTypeToLegacy(NanTxType type) {
+    switch (type) {
+        case NanTxType::BROADCAST:
+            return legacy_hal::NAN_TX_TYPE_BROADCAST;
+        case NanTxType::UNICAST:
+            return legacy_hal::NAN_TX_TYPE_UNICAST;
+    }
+    CHECK(false);
+}
+
+legacy_hal::NanSubscribeType convertHidlNanSubscribeTypeToLegacy(
+    NanSubscribeType type) {
+    switch (type) {
+        case NanSubscribeType::PASSIVE:
+            return legacy_hal::NAN_SUBSCRIBE_TYPE_PASSIVE;
+        case NanSubscribeType::ACTIVE:
+            return legacy_hal::NAN_SUBSCRIBE_TYPE_ACTIVE;
+    }
+    CHECK(false);
+}
+
+legacy_hal::NanSRFType convertHidlNanSrfTypeToLegacy(NanSrfType type) {
+    switch (type) {
+        case NanSrfType::BLOOM_FILTER:
+            return legacy_hal::NAN_SRF_ATTR_BLOOM_FILTER;
+        case NanSrfType::PARTIAL_MAC_ADDR:
+            return legacy_hal::NAN_SRF_ATTR_PARTIAL_MAC_ADDR;
+    }
+    CHECK(false);
+}
+
+legacy_hal::NanDataPathChannelCfg convertHidlNanDataPathChannelCfgToLegacy(
+    NanDataPathChannelCfg type) {
+    switch (type) {
+        case NanDataPathChannelCfg::CHANNEL_NOT_REQUESTED:
+            return legacy_hal::NAN_DP_CHANNEL_NOT_REQUESTED;
+        case NanDataPathChannelCfg::REQUEST_CHANNEL_SETUP:
+            return legacy_hal::NAN_DP_REQUEST_CHANNEL_SETUP;
+        case NanDataPathChannelCfg::FORCE_CHANNEL_SETUP:
+            return legacy_hal::NAN_DP_FORCE_CHANNEL_SETUP;
+    }
+    CHECK(false);
+}
+
+NanStatusType convertLegacyNanStatusTypeToHidl(legacy_hal::NanStatusType type) {
+    switch (type) {
+        case legacy_hal::NAN_STATUS_SUCCESS:
+            return NanStatusType::SUCCESS;
+        case legacy_hal::NAN_STATUS_INTERNAL_FAILURE:
+            return NanStatusType::INTERNAL_FAILURE;
+        case legacy_hal::NAN_STATUS_PROTOCOL_FAILURE:
+            return NanStatusType::PROTOCOL_FAILURE;
+        case legacy_hal::NAN_STATUS_INVALID_PUBLISH_SUBSCRIBE_ID:
+            return NanStatusType::INVALID_SESSION_ID;
+        case legacy_hal::NAN_STATUS_NO_RESOURCE_AVAILABLE:
+            return NanStatusType::NO_RESOURCES_AVAILABLE;
+        case legacy_hal::NAN_STATUS_INVALID_PARAM:
+            return NanStatusType::INVALID_ARGS;
+        case legacy_hal::NAN_STATUS_INVALID_REQUESTOR_INSTANCE_ID:
+            return NanStatusType::INVALID_PEER_ID;
+        case legacy_hal::NAN_STATUS_INVALID_NDP_ID:
+            return NanStatusType::INVALID_NDP_ID;
+        case legacy_hal::NAN_STATUS_NAN_NOT_ALLOWED:
+            return NanStatusType::NAN_NOT_ALLOWED;
+        case legacy_hal::NAN_STATUS_NO_OTA_ACK:
+            return NanStatusType::NO_OTA_ACK;
+        case legacy_hal::NAN_STATUS_ALREADY_ENABLED:
+            return NanStatusType::ALREADY_ENABLED;
+        case legacy_hal::NAN_STATUS_FOLLOWUP_QUEUE_FULL:
+            return NanStatusType::FOLLOWUP_TX_QUEUE_FULL;
+        case legacy_hal::NAN_STATUS_UNSUPPORTED_CONCURRENCY_NAN_DISABLED:
+            return NanStatusType::UNSUPPORTED_CONCURRENCY_NAN_DISABLED;
+    }
+    CHECK(false);
+}
+
+void convertToWifiNanStatus(legacy_hal::NanStatusType type, const char* str,
+                            size_t max_len, WifiNanStatus* wifiNanStatus) {
+    wifiNanStatus->status = convertLegacyNanStatusTypeToHidl(type);
+    wifiNanStatus->description = safeConvertChar(str, max_len);
+}
+
+bool convertHidlNanEnableRequestToLegacy(
+    const NanEnableRequest& hidl_request,
+    legacy_hal::NanEnableRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR)
+            << "convertHidlNanEnableRequestToLegacy: null legacy_request";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->config_2dot4g_support = 1;
+    legacy_request->support_2dot4g_val =
+        hidl_request.operateInBand[(size_t)NanBandIndex::NAN_BAND_24GHZ];
+    legacy_request->config_support_5g = 1;
+    legacy_request->support_5g_val =
+        hidl_request.operateInBand[(size_t)NanBandIndex::NAN_BAND_5GHZ];
+    legacy_request->config_hop_count_limit = 1;
+    legacy_request->hop_count_limit_val = hidl_request.hopCountMax;
+    legacy_request->master_pref = hidl_request.configParams.masterPref;
+    legacy_request->discovery_indication_cfg = 0;
+    legacy_request->discovery_indication_cfg |=
+        hidl_request.configParams.disableDiscoveryAddressChangeIndication ? 0x1
+                                                                          : 0x0;
+    legacy_request->discovery_indication_cfg |=
+        hidl_request.configParams.disableStartedClusterIndication ? 0x2 : 0x0;
+    legacy_request->discovery_indication_cfg |=
+        hidl_request.configParams.disableJoinedClusterIndication ? 0x4 : 0x0;
+    legacy_request->config_sid_beacon = 1;
+    if (hidl_request.configParams.numberOfPublishServiceIdsInBeacon > 127) {
+        LOG(ERROR) << "convertHidlNanEnableRequestToLegacy: "
+                      "numberOfPublishServiceIdsInBeacon > 127";
+        return false;
+    }
+    legacy_request->sid_beacon_val =
+        (hidl_request.configParams.includePublishServiceIdsInBeacon ? 0x1
+                                                                    : 0x0) |
+        (hidl_request.configParams.numberOfPublishServiceIdsInBeacon << 1);
+    legacy_request->config_subscribe_sid_beacon = 1;
+    if (hidl_request.configParams.numberOfSubscribeServiceIdsInBeacon > 127) {
+        LOG(ERROR) << "convertHidlNanEnableRequestToLegacy: "
+                      "numberOfSubscribeServiceIdsInBeacon > 127";
+        return false;
+    }
+    legacy_request->subscribe_sid_beacon_val =
+        (hidl_request.configParams.includeSubscribeServiceIdsInBeacon ? 0x1
+                                                                      : 0x0) |
+        (hidl_request.configParams.numberOfSubscribeServiceIdsInBeacon << 1);
+    legacy_request->config_rssi_window_size = 1;
+    legacy_request->rssi_window_size_val =
+        hidl_request.configParams.rssiWindowSize;
+    legacy_request->config_disc_mac_addr_randomization = 1;
+    legacy_request->disc_mac_addr_rand_interval_sec =
+        hidl_request.configParams.macAddressRandomizationIntervalSec;
+    legacy_request->config_2dot4g_rssi_close = 1;
+    if (hidl_request.configParams.bandSpecificConfig.size() != 2) {
+        LOG(ERROR) << "convertHidlNanEnableRequestToLegacy: "
+                      "bandSpecificConfig.size() != 2";
+        return false;
+    }
+    legacy_request->rssi_close_2dot4g_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .rssiClose;
+    legacy_request->config_2dot4g_rssi_middle = 1;
+    legacy_request->rssi_middle_2dot4g_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .rssiMiddle;
+    legacy_request->config_2dot4g_rssi_proximity = 1;
+    legacy_request->rssi_proximity_2dot4g_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .rssiCloseProximity;
+    legacy_request->config_scan_params = 1;
+    legacy_request->scan_params_val
+        .dwell_time[legacy_hal::NAN_CHANNEL_24G_BAND] =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .dwellTimeMs;
+    legacy_request->scan_params_val
+        .scan_period[legacy_hal::NAN_CHANNEL_24G_BAND] =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .scanPeriodSec;
+    legacy_request->config_dw.config_2dot4g_dw_band =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .validDiscoveryWindowIntervalVal;
+    legacy_request->config_dw.dw_2dot4g_interval_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .discoveryWindowIntervalVal;
+    legacy_request->config_5g_rssi_close = 1;
+    legacy_request->rssi_close_5g_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .rssiClose;
+    legacy_request->config_5g_rssi_middle = 1;
+    legacy_request->rssi_middle_5g_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .rssiMiddle;
+    legacy_request->config_5g_rssi_close_proximity = 1;
+    legacy_request->rssi_close_proximity_5g_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .rssiCloseProximity;
+    legacy_request->scan_params_val
+        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .dwellTimeMs;
+    legacy_request->scan_params_val
+        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .scanPeriodSec;
+    legacy_request->scan_params_val
+        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .dwellTimeMs;
+    legacy_request->scan_params_val
+        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .scanPeriodSec;
+    legacy_request->config_dw.config_5g_dw_band =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .validDiscoveryWindowIntervalVal;
+    legacy_request->config_dw.dw_5g_interval_val =
+        hidl_request.configParams
+            .bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .discoveryWindowIntervalVal;
+    if (hidl_request.debugConfigs.validClusterIdVals) {
+        legacy_request->cluster_low =
+            hidl_request.debugConfigs.clusterIdBottomRangeVal;
+        legacy_request->cluster_high =
+            hidl_request.debugConfigs.clusterIdTopRangeVal;
+    } else {  // need 'else' since not configurable in legacy HAL
+        legacy_request->cluster_low = 0x0000;
+        legacy_request->cluster_high = 0xFFFF;
+    }
+    legacy_request->config_intf_addr =
+        hidl_request.debugConfigs.validIntfAddrVal;
+    memcpy(legacy_request->intf_addr_val,
+           hidl_request.debugConfigs.intfAddrVal.data(), 6);
+    legacy_request->config_oui = hidl_request.debugConfigs.validOuiVal;
+    legacy_request->oui_val = hidl_request.debugConfigs.ouiVal;
+    legacy_request->config_random_factor_force =
+        hidl_request.debugConfigs.validRandomFactorForceVal;
+    legacy_request->random_factor_force_val =
+        hidl_request.debugConfigs.randomFactorForceVal;
+    legacy_request->config_hop_count_force =
+        hidl_request.debugConfigs.validHopCountForceVal;
+    legacy_request->hop_count_force_val =
+        hidl_request.debugConfigs.hopCountForceVal;
+    legacy_request->config_24g_channel =
+        hidl_request.debugConfigs.validDiscoveryChannelVal;
+    legacy_request->channel_24g_val =
+        hidl_request.debugConfigs
+            .discoveryChannelMhzVal[(size_t)NanBandIndex::NAN_BAND_24GHZ];
+    legacy_request->config_5g_channel =
+        hidl_request.debugConfigs.validDiscoveryChannelVal;
+    legacy_request->channel_5g_val =
+        hidl_request.debugConfigs
+            .discoveryChannelMhzVal[(size_t)NanBandIndex::NAN_BAND_5GHZ];
+    legacy_request->config_2dot4g_beacons =
+        hidl_request.debugConfigs.validUseBeaconsInBandVal;
+    legacy_request->beacon_2dot4g_val =
+        hidl_request.debugConfigs
+            .useBeaconsInBandVal[(size_t)NanBandIndex::NAN_BAND_24GHZ];
+    legacy_request->config_5g_beacons =
+        hidl_request.debugConfigs.validUseBeaconsInBandVal;
+    legacy_request->beacon_5g_val =
+        hidl_request.debugConfigs
+            .useBeaconsInBandVal[(size_t)NanBandIndex::NAN_BAND_5GHZ];
+    legacy_request->config_2dot4g_sdf =
+        hidl_request.debugConfigs.validUseSdfInBandVal;
+    legacy_request->sdf_2dot4g_val =
+        hidl_request.debugConfigs
+            .useSdfInBandVal[(size_t)NanBandIndex::NAN_BAND_24GHZ];
+    legacy_request->config_5g_sdf =
+        hidl_request.debugConfigs.validUseSdfInBandVal;
+    legacy_request->sdf_5g_val =
+        hidl_request.debugConfigs
+            .useSdfInBandVal[(size_t)NanBandIndex::NAN_BAND_5GHZ];
+
+    return true;
+}
+
+bool convertHidlNanEnableRequest_1_2ToLegacy(
+    const NanEnableRequest& hidl_request1,
+    const V1_2::NanConfigRequestSupplemental& hidl_request2,
+    legacy_hal::NanEnableRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR)
+            << "convertHidlNanEnableRequest_1_2ToLegacy: null legacy_request";
+        return false;
+    }
+
+    *legacy_request = {};
+    if (!convertHidlNanEnableRequestToLegacy(hidl_request1, legacy_request)) {
+        return false;
+    }
+
+    legacy_request->config_discovery_beacon_int = 1;
+    legacy_request->discovery_beacon_interval =
+        hidl_request2.discoveryBeaconIntervalMs;
+    legacy_request->config_nss = 1;
+    legacy_request->nss = hidl_request2.numberOfSpatialStreamsInDiscovery;
+    legacy_request->config_dw_early_termination = 1;
+    legacy_request->enable_dw_termination =
+        hidl_request2.enableDiscoveryWindowEarlyTermination;
+    legacy_request->config_enable_ranging = 1;
+    legacy_request->enable_ranging = hidl_request2.enableRanging;
+
+    return true;
+}
+
+bool convertHidlNanPublishRequestToLegacy(
+    const NanPublishRequest& hidl_request,
+    legacy_hal::NanPublishRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR)
+            << "convertHidlNanPublishRequestToLegacy: null legacy_request";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->publish_id = hidl_request.baseConfigs.sessionId;
+    legacy_request->ttl = hidl_request.baseConfigs.ttlSec;
+    legacy_request->period = hidl_request.baseConfigs.discoveryWindowPeriod;
+    legacy_request->publish_count = hidl_request.baseConfigs.discoveryCount;
+    legacy_request->service_name_len =
+        hidl_request.baseConfigs.serviceName.size();
+    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
+        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: service_name_len "
+                      "too large";
+        return false;
+    }
+    memcpy(legacy_request->service_name,
+           hidl_request.baseConfigs.serviceName.data(),
+           legacy_request->service_name_len);
+    legacy_request->publish_match_indicator = convertHidlNanMatchAlgToLegacy(
+        hidl_request.baseConfigs.discoveryMatchIndicator);
+    legacy_request->service_specific_info_len =
+        hidl_request.baseConfigs.serviceSpecificInfo.size();
+    if (legacy_request->service_specific_info_len >
+        NAN_MAX_SERVICE_SPECIFIC_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
+                      "service_specific_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_specific_info,
+           hidl_request.baseConfigs.serviceSpecificInfo.data(),
+           legacy_request->service_specific_info_len);
+    legacy_request->sdea_service_specific_info_len =
+        hidl_request.baseConfigs.extendedServiceSpecificInfo.size();
+    if (legacy_request->sdea_service_specific_info_len >
+        NAN_MAX_SDEA_SERVICE_SPECIFIC_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
+                      "sdea_service_specific_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->sdea_service_specific_info,
+           hidl_request.baseConfigs.extendedServiceSpecificInfo.data(),
+           legacy_request->sdea_service_specific_info_len);
+    legacy_request->rx_match_filter_len =
+        hidl_request.baseConfigs.rxMatchFilter.size();
+    if (legacy_request->rx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
+        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
+                      "rx_match_filter_len too large";
+        return false;
+    }
+    memcpy(legacy_request->rx_match_filter,
+           hidl_request.baseConfigs.rxMatchFilter.data(),
+           legacy_request->rx_match_filter_len);
+    legacy_request->tx_match_filter_len =
+        hidl_request.baseConfigs.txMatchFilter.size();
+    if (legacy_request->tx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
+        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
+                      "tx_match_filter_len too large";
+        return false;
+    }
+    memcpy(legacy_request->tx_match_filter,
+           hidl_request.baseConfigs.txMatchFilter.data(),
+           legacy_request->tx_match_filter_len);
+    legacy_request->rssi_threshold_flag =
+        hidl_request.baseConfigs.useRssiThreshold;
+    legacy_request->recv_indication_cfg = 0;
+    legacy_request->recv_indication_cfg |=
+        hidl_request.baseConfigs.disableDiscoveryTerminationIndication ? 0x1
+                                                                       : 0x0;
+    legacy_request->recv_indication_cfg |=
+        hidl_request.baseConfigs.disableMatchExpirationIndication ? 0x2 : 0x0;
+    legacy_request->recv_indication_cfg |=
+        hidl_request.baseConfigs.disableFollowupReceivedIndication ? 0x4 : 0x0;
+    legacy_request->recv_indication_cfg |= 0x8;
+    legacy_request->cipher_type =
+        (unsigned int)hidl_request.baseConfigs.securityConfig.cipherType;
+    if (hidl_request.baseConfigs.securityConfig.securityType ==
+        NanDataPathSecurityType::PMK) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
+        legacy_request->key_info.body.pmk_info.pmk_len =
+            hidl_request.baseConfigs.securityConfig.pmk.size();
+        if (legacy_request->key_info.body.pmk_info.pmk_len !=
+            NAN_PMK_INFO_LEN) {
+            LOG(ERROR)
+                << "convertHidlNanPublishRequestToLegacy: invalid pmk_len";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.pmk_info.pmk,
+               hidl_request.baseConfigs.securityConfig.pmk.data(),
+               legacy_request->key_info.body.pmk_info.pmk_len);
+    }
+    if (hidl_request.baseConfigs.securityConfig.securityType ==
+        NanDataPathSecurityType::PASSPHRASE) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
+        legacy_request->key_info.body.passphrase_info.passphrase_len =
+            hidl_request.baseConfigs.securityConfig.passphrase.size();
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
+            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
+                          "passphrase_len too small";
+            return false;
+        }
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
+            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: "
+                          "passphrase_len too large";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
+               hidl_request.baseConfigs.securityConfig.passphrase.data(),
+               legacy_request->key_info.body.passphrase_info.passphrase_len);
+    }
+    legacy_request->sdea_params.security_cfg =
+        (hidl_request.baseConfigs.securityConfig.securityType !=
+         NanDataPathSecurityType::OPEN)
+            ? legacy_hal::NAN_DP_CONFIG_SECURITY
+            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+    legacy_request->sdea_params.ranging_state =
+        hidl_request.baseConfigs.rangingRequired
+            ? legacy_hal::NAN_RANGING_ENABLE
+            : legacy_hal::NAN_RANGING_DISABLE;
+    legacy_request->ranging_cfg.ranging_interval_msec =
+        hidl_request.baseConfigs.rangingIntervalMsec;
+    legacy_request->ranging_cfg.config_ranging_indications =
+        hidl_request.baseConfigs.configRangingIndications;
+    legacy_request->ranging_cfg.distance_ingress_mm =
+        hidl_request.baseConfigs.distanceIngressCm * 10;
+    legacy_request->ranging_cfg.distance_egress_mm =
+        hidl_request.baseConfigs.distanceEgressCm * 10;
+    legacy_request->ranging_auto_response =
+        hidl_request.baseConfigs.rangingRequired
+            ? legacy_hal::NAN_RANGING_AUTO_RESPONSE_ENABLE
+            : legacy_hal::NAN_RANGING_AUTO_RESPONSE_DISABLE;
+    legacy_request->sdea_params.range_report =
+        legacy_hal::NAN_DISABLE_RANGE_REPORT;
+    legacy_request->publish_type =
+        convertHidlNanPublishTypeToLegacy(hidl_request.publishType);
+    legacy_request->tx_type = convertHidlNanTxTypeToLegacy(hidl_request.txType);
+    legacy_request->service_responder_policy =
+        hidl_request.autoAcceptDataPathRequests
+            ? legacy_hal::NAN_SERVICE_ACCEPT_POLICY_ALL
+            : legacy_hal::NAN_SERVICE_ACCEPT_POLICY_NONE;
+
+    return true;
+}
+
+bool convertHidlNanSubscribeRequestToLegacy(
+    const NanSubscribeRequest& hidl_request,
+    legacy_hal::NanSubscribeRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR)
+            << "convertHidlNanSubscribeRequestToLegacy: legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->subscribe_id = hidl_request.baseConfigs.sessionId;
+    legacy_request->ttl = hidl_request.baseConfigs.ttlSec;
+    legacy_request->period = hidl_request.baseConfigs.discoveryWindowPeriod;
+    legacy_request->subscribe_count = hidl_request.baseConfigs.discoveryCount;
+    legacy_request->service_name_len =
+        hidl_request.baseConfigs.serviceName.size();
+    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
+        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                      "service_name_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_name,
+           hidl_request.baseConfigs.serviceName.data(),
+           legacy_request->service_name_len);
+    legacy_request->subscribe_match_indicator = convertHidlNanMatchAlgToLegacy(
+        hidl_request.baseConfigs.discoveryMatchIndicator);
+    legacy_request->service_specific_info_len =
+        hidl_request.baseConfigs.serviceSpecificInfo.size();
+    if (legacy_request->service_specific_info_len >
+        NAN_MAX_SERVICE_SPECIFIC_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                      "service_specific_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_specific_info,
+           hidl_request.baseConfigs.serviceSpecificInfo.data(),
+           legacy_request->service_specific_info_len);
+    legacy_request->sdea_service_specific_info_len =
+        hidl_request.baseConfigs.extendedServiceSpecificInfo.size();
+    if (legacy_request->sdea_service_specific_info_len >
+        NAN_MAX_SDEA_SERVICE_SPECIFIC_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                      "sdea_service_specific_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->sdea_service_specific_info,
+           hidl_request.baseConfigs.extendedServiceSpecificInfo.data(),
+           legacy_request->sdea_service_specific_info_len);
+    legacy_request->rx_match_filter_len =
+        hidl_request.baseConfigs.rxMatchFilter.size();
+    if (legacy_request->rx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
+        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                      "rx_match_filter_len too large";
+        return false;
+    }
+    memcpy(legacy_request->rx_match_filter,
+           hidl_request.baseConfigs.rxMatchFilter.data(),
+           legacy_request->rx_match_filter_len);
+    legacy_request->tx_match_filter_len =
+        hidl_request.baseConfigs.txMatchFilter.size();
+    if (legacy_request->tx_match_filter_len > NAN_MAX_MATCH_FILTER_LEN) {
+        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                      "tx_match_filter_len too large";
+        return false;
+    }
+    memcpy(legacy_request->tx_match_filter,
+           hidl_request.baseConfigs.txMatchFilter.data(),
+           legacy_request->tx_match_filter_len);
+    legacy_request->rssi_threshold_flag =
+        hidl_request.baseConfigs.useRssiThreshold;
+    legacy_request->recv_indication_cfg = 0;
+    legacy_request->recv_indication_cfg |=
+        hidl_request.baseConfigs.disableDiscoveryTerminationIndication ? 0x1
+                                                                       : 0x0;
+    legacy_request->recv_indication_cfg |=
+        hidl_request.baseConfigs.disableMatchExpirationIndication ? 0x2 : 0x0;
+    legacy_request->recv_indication_cfg |=
+        hidl_request.baseConfigs.disableFollowupReceivedIndication ? 0x4 : 0x0;
+    legacy_request->cipher_type =
+        (unsigned int)hidl_request.baseConfigs.securityConfig.cipherType;
+    if (hidl_request.baseConfigs.securityConfig.securityType ==
+        NanDataPathSecurityType::PMK) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
+        legacy_request->key_info.body.pmk_info.pmk_len =
+            hidl_request.baseConfigs.securityConfig.pmk.size();
+        if (legacy_request->key_info.body.pmk_info.pmk_len !=
+            NAN_PMK_INFO_LEN) {
+            LOG(ERROR)
+                << "convertHidlNanSubscribeRequestToLegacy: invalid pmk_len";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.pmk_info.pmk,
+               hidl_request.baseConfigs.securityConfig.pmk.data(),
+               legacy_request->key_info.body.pmk_info.pmk_len);
+    }
+    if (hidl_request.baseConfigs.securityConfig.securityType ==
+        NanDataPathSecurityType::PASSPHRASE) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
+        legacy_request->key_info.body.passphrase_info.passphrase_len =
+            hidl_request.baseConfigs.securityConfig.passphrase.size();
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
+            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                          "passphrase_len too small";
+            return false;
+        }
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
+            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                          "passphrase_len too large";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
+               hidl_request.baseConfigs.securityConfig.passphrase.data(),
+               legacy_request->key_info.body.passphrase_info.passphrase_len);
+    }
+    legacy_request->sdea_params.security_cfg =
+        (hidl_request.baseConfigs.securityConfig.securityType !=
+         NanDataPathSecurityType::OPEN)
+            ? legacy_hal::NAN_DP_CONFIG_SECURITY
+            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+    legacy_request->sdea_params.ranging_state =
+        hidl_request.baseConfigs.rangingRequired
+            ? legacy_hal::NAN_RANGING_ENABLE
+            : legacy_hal::NAN_RANGING_DISABLE;
+    legacy_request->ranging_cfg.ranging_interval_msec =
+        hidl_request.baseConfigs.rangingIntervalMsec;
+    legacy_request->ranging_cfg.config_ranging_indications =
+        hidl_request.baseConfigs.configRangingIndications;
+    legacy_request->ranging_cfg.distance_ingress_mm =
+        hidl_request.baseConfigs.distanceIngressCm * 10;
+    legacy_request->ranging_cfg.distance_egress_mm =
+        hidl_request.baseConfigs.distanceEgressCm * 10;
+    legacy_request->ranging_auto_response =
+        hidl_request.baseConfigs.rangingRequired
+            ? legacy_hal::NAN_RANGING_AUTO_RESPONSE_ENABLE
+            : legacy_hal::NAN_RANGING_AUTO_RESPONSE_DISABLE;
+    legacy_request->sdea_params.range_report =
+        legacy_hal::NAN_DISABLE_RANGE_REPORT;
+    legacy_request->subscribe_type =
+        convertHidlNanSubscribeTypeToLegacy(hidl_request.subscribeType);
+    legacy_request->serviceResponseFilter =
+        convertHidlNanSrfTypeToLegacy(hidl_request.srfType);
+    legacy_request->serviceResponseInclude =
+        hidl_request.srfRespondIfInAddressSet
+            ? legacy_hal::NAN_SRF_INCLUDE_RESPOND
+            : legacy_hal::NAN_SRF_INCLUDE_DO_NOT_RESPOND;
+    legacy_request->useServiceResponseFilter =
+        hidl_request.shouldUseSrf ? legacy_hal::NAN_USE_SRF
+                                  : legacy_hal::NAN_DO_NOT_USE_SRF;
+    legacy_request->ssiRequiredForMatchIndication =
+        hidl_request.isSsiRequiredForMatch
+            ? legacy_hal::NAN_SSI_REQUIRED_IN_MATCH_IND
+            : legacy_hal::NAN_SSI_NOT_REQUIRED_IN_MATCH_IND;
+    legacy_request->num_intf_addr_present = hidl_request.intfAddr.size();
+    if (legacy_request->num_intf_addr_present > NAN_MAX_SUBSCRIBE_MAX_ADDRESS) {
+        LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: "
+                      "num_intf_addr_present - too many";
+        return false;
+    }
+    for (int i = 0; i < legacy_request->num_intf_addr_present; i++) {
+        memcpy(legacy_request->intf_addr[i], hidl_request.intfAddr[i].data(),
+               6);
+    }
+
+    return true;
+}
+
+bool convertHidlNanTransmitFollowupRequestToLegacy(
+    const NanTransmitFollowupRequest& hidl_request,
+    legacy_hal::NanTransmitFollowupRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR) << "convertHidlNanTransmitFollowupRequestToLegacy: "
+                      "legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->publish_subscribe_id = hidl_request.discoverySessionId;
+    legacy_request->requestor_instance_id = hidl_request.peerId;
+    memcpy(legacy_request->addr, hidl_request.addr.data(), 6);
+    legacy_request->priority = hidl_request.isHighPriority
+                                   ? legacy_hal::NAN_TX_PRIORITY_HIGH
+                                   : legacy_hal::NAN_TX_PRIORITY_NORMAL;
+    legacy_request->dw_or_faw = hidl_request.shouldUseDiscoveryWindow
+                                    ? legacy_hal::NAN_TRANSMIT_IN_DW
+                                    : legacy_hal::NAN_TRANSMIT_IN_FAW;
+    legacy_request->service_specific_info_len =
+        hidl_request.serviceSpecificInfo.size();
+    if (legacy_request->service_specific_info_len >
+        NAN_MAX_SERVICE_SPECIFIC_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanTransmitFollowupRequestToLegacy: "
+                      "service_specific_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_specific_info,
+           hidl_request.serviceSpecificInfo.data(),
+           legacy_request->service_specific_info_len);
+    legacy_request->sdea_service_specific_info_len =
+        hidl_request.extendedServiceSpecificInfo.size();
+    if (legacy_request->sdea_service_specific_info_len >
+        NAN_MAX_SDEA_SERVICE_SPECIFIC_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanTransmitFollowupRequestToLegacy: "
+                      "sdea_service_specific_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->sdea_service_specific_info,
+           hidl_request.extendedServiceSpecificInfo.data(),
+           legacy_request->sdea_service_specific_info_len);
+    legacy_request->recv_indication_cfg =
+        hidl_request.disableFollowupResultIndication ? 0x1 : 0x0;
+
+    return true;
+}
+
+bool convertHidlNanConfigRequestToLegacy(
+    const NanConfigRequest& hidl_request,
+    legacy_hal::NanConfigRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR)
+            << "convertHidlNanConfigRequestToLegacy: legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    // TODO: b/34059183 tracks missing configurations in legacy HAL or uknown
+    // defaults
+    legacy_request->master_pref = hidl_request.masterPref;
+    legacy_request->discovery_indication_cfg = 0;
+    legacy_request->discovery_indication_cfg |=
+        hidl_request.disableDiscoveryAddressChangeIndication ? 0x1 : 0x0;
+    legacy_request->discovery_indication_cfg |=
+        hidl_request.disableStartedClusterIndication ? 0x2 : 0x0;
+    legacy_request->discovery_indication_cfg |=
+        hidl_request.disableJoinedClusterIndication ? 0x4 : 0x0;
+    legacy_request->config_sid_beacon = 1;
+    if (hidl_request.numberOfPublishServiceIdsInBeacon > 127) {
+        LOG(ERROR) << "convertHidlNanConfigRequestToLegacy: "
+                      "numberOfPublishServiceIdsInBeacon > 127";
+        return false;
+    }
+    legacy_request->sid_beacon =
+        (hidl_request.includePublishServiceIdsInBeacon ? 0x1 : 0x0) |
+        (hidl_request.numberOfPublishServiceIdsInBeacon << 1);
+    legacy_request->config_subscribe_sid_beacon = 1;
+    if (hidl_request.numberOfSubscribeServiceIdsInBeacon > 127) {
+        LOG(ERROR) << "convertHidlNanConfigRequestToLegacy: "
+                      "numberOfSubscribeServiceIdsInBeacon > 127";
+        return false;
+    }
+    legacy_request->subscribe_sid_beacon_val =
+        (hidl_request.includeSubscribeServiceIdsInBeacon ? 0x1 : 0x0) |
+        (hidl_request.numberOfSubscribeServiceIdsInBeacon << 1);
+    legacy_request->config_rssi_window_size = 1;
+    legacy_request->rssi_window_size_val = hidl_request.rssiWindowSize;
+    legacy_request->config_disc_mac_addr_randomization = 1;
+    legacy_request->disc_mac_addr_rand_interval_sec =
+        hidl_request.macAddressRandomizationIntervalSec;
+    /* TODO : missing
+    legacy_request->config_2dot4g_rssi_close = 1;
+    legacy_request->rssi_close_2dot4g_val =
+          hidl_request.bandSpecificConfig[
+              (size_t) NanBandIndex::NAN_BAND_24GHZ].rssiClose;
+    legacy_request->config_2dot4g_rssi_middle = 1;
+    legacy_request->rssi_middle_2dot4g_val =
+          hidl_request.bandSpecificConfig[
+              (size_t) NanBandIndex::NAN_BAND_24GHZ].rssiMiddle;
+    legacy_request->config_2dot4g_rssi_proximity = 1;
+    legacy_request->rssi_proximity_2dot4g_val =
+          hidl_request.bandSpecificConfig[
+              (size_t) NanBandIndex::NAN_BAND_24GHZ].rssiCloseProximity;
+    */
+    legacy_request->config_scan_params = 1;
+    legacy_request->scan_params_val
+        .dwell_time[legacy_hal::NAN_CHANNEL_24G_BAND] =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .dwellTimeMs;
+    legacy_request->scan_params_val
+        .scan_period[legacy_hal::NAN_CHANNEL_24G_BAND] =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .scanPeriodSec;
+    legacy_request->config_dw.config_2dot4g_dw_band =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .validDiscoveryWindowIntervalVal;
+    legacy_request->config_dw.dw_2dot4g_interval_val =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_24GHZ]
+            .discoveryWindowIntervalVal;
+    /* TODO: missing
+    legacy_request->config_5g_rssi_close = 1;
+    legacy_request->rssi_close_5g_val =
+          hidl_request.bandSpecificConfig[
+              (size_t) NanBandIndex::NAN_BAND_5GHZ].rssiClose;
+    legacy_request->config_5g_rssi_middle = 1;
+    legacy_request->rssi_middle_5g_val =
+          hidl_request.bandSpecificConfig[
+              (size_t) NanBandIndex::NAN_BAND_5GHZ].rssiMiddle;
+    */
+    legacy_request->config_5g_rssi_close_proximity = 1;
+    legacy_request->rssi_close_proximity_5g_val =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .rssiCloseProximity;
+    legacy_request->scan_params_val
+        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .dwellTimeMs;
+    legacy_request->scan_params_val
+        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_LOW] =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .scanPeriodSec;
+    legacy_request->scan_params_val
+        .dwell_time[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .dwellTimeMs;
+    legacy_request->scan_params_val
+        .scan_period[legacy_hal::NAN_CHANNEL_5G_BAND_HIGH] =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .scanPeriodSec;
+    legacy_request->config_dw.config_5g_dw_band =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .validDiscoveryWindowIntervalVal;
+    legacy_request->config_dw.dw_5g_interval_val =
+        hidl_request.bandSpecificConfig[(size_t)NanBandIndex::NAN_BAND_5GHZ]
+            .discoveryWindowIntervalVal;
+
+    return true;
+}
+
+bool convertHidlNanConfigRequest_1_2ToLegacy(
+    const NanConfigRequest& hidl_request1,
+    const V1_2::NanConfigRequestSupplemental& hidl_request2,
+    legacy_hal::NanConfigRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR) << "convertHidlNanConfigRequest_1_2ToLegacy: legacy_request "
+                      "is null";
+        return false;
+    }
+
+    *legacy_request = {};
+    if (!convertHidlNanConfigRequestToLegacy(hidl_request1, legacy_request)) {
+        return false;
+    }
+
+    legacy_request->config_discovery_beacon_int = 1;
+    legacy_request->discovery_beacon_interval =
+        hidl_request2.discoveryBeaconIntervalMs;
+    legacy_request->config_nss = 1;
+    legacy_request->nss = hidl_request2.numberOfSpatialStreamsInDiscovery;
+    legacy_request->config_dw_early_termination = 1;
+    legacy_request->enable_dw_termination =
+        hidl_request2.enableDiscoveryWindowEarlyTermination;
+    legacy_request->config_enable_ranging = 1;
+    legacy_request->enable_ranging = hidl_request2.enableRanging;
+
+    return true;
+}
+
+bool convertHidlNanDataPathInitiatorRequestToLegacy(
+    const NanInitiateDataPathRequest& hidl_request,
+    legacy_hal::NanDataPathInitiatorRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
+                      "legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->requestor_instance_id = hidl_request.peerId;
+    memcpy(legacy_request->peer_disc_mac_addr,
+           hidl_request.peerDiscMacAddr.data(), 6);
+    legacy_request->channel_request_type =
+        convertHidlNanDataPathChannelCfgToLegacy(
+            hidl_request.channelRequestType);
+    legacy_request->channel = hidl_request.channel;
+    strcpy(legacy_request->ndp_iface, hidl_request.ifaceName.c_str());
+    legacy_request->ndp_cfg.security_cfg =
+        (hidl_request.securityConfig.securityType !=
+         NanDataPathSecurityType::OPEN)
+            ? legacy_hal::NAN_DP_CONFIG_SECURITY
+            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+    legacy_request->app_info.ndp_app_info_len = hidl_request.appInfo.size();
+    if (legacy_request->app_info.ndp_app_info_len > NAN_DP_MAX_APP_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
+                      "ndp_app_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->app_info.ndp_app_info, hidl_request.appInfo.data(),
+           legacy_request->app_info.ndp_app_info_len);
+    legacy_request->cipher_type =
+        (unsigned int)hidl_request.securityConfig.cipherType;
+    if (hidl_request.securityConfig.securityType ==
+        NanDataPathSecurityType::PMK) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
+        legacy_request->key_info.body.pmk_info.pmk_len =
+            hidl_request.securityConfig.pmk.size();
+        if (legacy_request->key_info.body.pmk_info.pmk_len !=
+            NAN_PMK_INFO_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
+                          "invalid pmk_len";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.pmk_info.pmk,
+               hidl_request.securityConfig.pmk.data(),
+               legacy_request->key_info.body.pmk_info.pmk_len);
+    }
+    if (hidl_request.securityConfig.securityType ==
+        NanDataPathSecurityType::PASSPHRASE) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
+        legacy_request->key_info.body.passphrase_info.passphrase_len =
+            hidl_request.securityConfig.passphrase.size();
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
+            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
+                          "passphrase_len too small";
+            return false;
+        }
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
+            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
+                          "passphrase_len too large";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
+               hidl_request.securityConfig.passphrase.data(),
+               legacy_request->key_info.body.passphrase_info.passphrase_len);
+    }
+    legacy_request->service_name_len = hidl_request.serviceNameOutOfBand.size();
+    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
+                      "service_name_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_name,
+           hidl_request.serviceNameOutOfBand.data(),
+           legacy_request->service_name_len);
+
+    return true;
+}
+
+bool convertHidlNanDataPathIndicationResponseToLegacy(
+    const NanRespondToDataPathIndicationRequest& hidl_request,
+    legacy_hal::NanDataPathIndicationResponse* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
+                      "legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->rsp_code = hidl_request.acceptRequest
+                                   ? legacy_hal::NAN_DP_REQUEST_ACCEPT
+                                   : legacy_hal::NAN_DP_REQUEST_REJECT;
+    legacy_request->ndp_instance_id = hidl_request.ndpInstanceId;
+    strcpy(legacy_request->ndp_iface, hidl_request.ifaceName.c_str());
+    legacy_request->ndp_cfg.security_cfg =
+        (hidl_request.securityConfig.securityType !=
+         NanDataPathSecurityType::OPEN)
+            ? legacy_hal::NAN_DP_CONFIG_SECURITY
+            : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+    legacy_request->app_info.ndp_app_info_len = hidl_request.appInfo.size();
+    if (legacy_request->app_info.ndp_app_info_len > NAN_DP_MAX_APP_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
+                      "ndp_app_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->app_info.ndp_app_info, hidl_request.appInfo.data(),
+           legacy_request->app_info.ndp_app_info_len);
+    legacy_request->cipher_type =
+        (unsigned int)hidl_request.securityConfig.cipherType;
+    if (hidl_request.securityConfig.securityType ==
+        NanDataPathSecurityType::PMK) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
+        legacy_request->key_info.body.pmk_info.pmk_len =
+            hidl_request.securityConfig.pmk.size();
+        if (legacy_request->key_info.body.pmk_info.pmk_len !=
+            NAN_PMK_INFO_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
+                          "invalid pmk_len";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.pmk_info.pmk,
+               hidl_request.securityConfig.pmk.data(),
+               legacy_request->key_info.body.pmk_info.pmk_len);
+    }
+    if (hidl_request.securityConfig.securityType ==
+        NanDataPathSecurityType::PASSPHRASE) {
+        legacy_request->key_info.key_type =
+            legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
+        legacy_request->key_info.body.passphrase_info.passphrase_len =
+            hidl_request.securityConfig.passphrase.size();
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
+            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
+                          "passphrase_len too small";
+            return false;
+        }
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
+            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
+                          "passphrase_len too large";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
+               hidl_request.securityConfig.passphrase.data(),
+               legacy_request->key_info.body.passphrase_info.passphrase_len);
+    }
+    legacy_request->service_name_len = hidl_request.serviceNameOutOfBand.size();
+    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
+                      "service_name_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_name,
+           hidl_request.serviceNameOutOfBand.data(),
+           legacy_request->service_name_len);
+
+    return true;
+}
+
+bool convertLegacyNanResponseHeaderToHidl(
+    const legacy_hal::NanResponseMsg& legacy_response,
+    WifiNanStatus* wifiNanStatus) {
+    if (!wifiNanStatus) {
+        LOG(ERROR)
+            << "convertLegacyNanResponseHeaderToHidl: wifiNanStatus is null";
+        return false;
+    }
+    *wifiNanStatus = {};
+
+    convertToWifiNanStatus(legacy_response.status, legacy_response.nan_error,
+                           sizeof(legacy_response.nan_error), wifiNanStatus);
+    return true;
+}
+
+bool convertLegacyNanCapabilitiesResponseToHidl(
+    const legacy_hal::NanCapabilities& legacy_response,
+    NanCapabilities* hidl_response) {
+    if (!hidl_response) {
+        LOG(ERROR) << "convertLegacyNanCapabilitiesResponseToHidl: "
+                      "hidl_response is null";
+        return false;
+    }
+    *hidl_response = {};
+
+    hidl_response->maxConcurrentClusters =
+        legacy_response.max_concurrent_nan_clusters;
+    hidl_response->maxPublishes = legacy_response.max_publishes;
+    hidl_response->maxSubscribes = legacy_response.max_subscribes;
+    hidl_response->maxServiceNameLen = legacy_response.max_service_name_len;
+    hidl_response->maxMatchFilterLen = legacy_response.max_match_filter_len;
+    hidl_response->maxTotalMatchFilterLen =
+        legacy_response.max_total_match_filter_len;
+    hidl_response->maxServiceSpecificInfoLen =
+        legacy_response.max_service_specific_info_len;
+    hidl_response->maxExtendedServiceSpecificInfoLen =
+        legacy_response.max_sdea_service_specific_info_len;
+    hidl_response->maxNdiInterfaces = legacy_response.max_ndi_interfaces;
+    hidl_response->maxNdpSessions = legacy_response.max_ndp_sessions;
+    hidl_response->maxAppInfoLen = legacy_response.max_app_info_len;
+    hidl_response->maxQueuedTransmitFollowupMsgs =
+        legacy_response.max_queued_transmit_followup_msgs;
+    hidl_response->maxSubscribeInterfaceAddresses =
+        legacy_response.max_subscribe_address;
+    hidl_response->supportedCipherSuites =
+        legacy_response.cipher_suites_supported;
+
+    return true;
+}
+
+bool convertLegacyNanMatchIndToHidl(const legacy_hal::NanMatchInd& legacy_ind,
+                                    NanMatchInd* hidl_ind) {
+    if (!hidl_ind) {
+        LOG(ERROR) << "convertLegacyNanMatchIndToHidl: hidl_ind is null";
+        return false;
+    }
+    *hidl_ind = {};
+
+    hidl_ind->discoverySessionId = legacy_ind.publish_subscribe_id;
+    hidl_ind->peerId = legacy_ind.requestor_instance_id;
+    hidl_ind->addr = hidl_array<uint8_t, 6>(legacy_ind.addr);
+    hidl_ind->serviceSpecificInfo =
+        std::vector<uint8_t>(legacy_ind.service_specific_info,
+                             legacy_ind.service_specific_info +
+                                 legacy_ind.service_specific_info_len);
+    hidl_ind->extendedServiceSpecificInfo =
+        std::vector<uint8_t>(legacy_ind.sdea_service_specific_info,
+                             legacy_ind.sdea_service_specific_info +
+                                 legacy_ind.sdea_service_specific_info_len);
+    hidl_ind->matchFilter = std::vector<uint8_t>(
+        legacy_ind.sdf_match_filter,
+        legacy_ind.sdf_match_filter + legacy_ind.sdf_match_filter_len);
+    hidl_ind->matchOccuredInBeaconFlag = legacy_ind.match_occured_flag == 1;
+    hidl_ind->outOfResourceFlag = legacy_ind.out_of_resource_flag == 1;
+    hidl_ind->rssiValue = legacy_ind.rssi_value;
+    hidl_ind->peerCipherType = (NanCipherSuiteType)legacy_ind.peer_cipher_type;
+    hidl_ind->peerRequiresSecurityEnabledInNdp =
+        legacy_ind.peer_sdea_params.security_cfg ==
+        legacy_hal::NAN_DP_CONFIG_SECURITY;
+    hidl_ind->peerRequiresRanging = legacy_ind.peer_sdea_params.ranging_state ==
+                                    legacy_hal::NAN_RANGING_ENABLE;
+    hidl_ind->rangingMeasurementInCm =
+        legacy_ind.range_info.range_measurement_mm / 10;
+    hidl_ind->rangingIndicationType = legacy_ind.range_info.ranging_event_type;
+
+    return true;
+}
+
+bool convertLegacyNanFollowupIndToHidl(
+    const legacy_hal::NanFollowupInd& legacy_ind,
+    NanFollowupReceivedInd* hidl_ind) {
+    if (!hidl_ind) {
+        LOG(ERROR) << "convertLegacyNanFollowupIndToHidl: hidl_ind is null";
+        return false;
+    }
+    *hidl_ind = {};
+
+    hidl_ind->discoverySessionId = legacy_ind.publish_subscribe_id;
+    hidl_ind->peerId = legacy_ind.requestor_instance_id;
+    hidl_ind->addr = hidl_array<uint8_t, 6>(legacy_ind.addr);
+    hidl_ind->receivedInFaw = legacy_ind.dw_or_faw == 1;
+    hidl_ind->serviceSpecificInfo =
+        std::vector<uint8_t>(legacy_ind.service_specific_info,
+                             legacy_ind.service_specific_info +
+                                 legacy_ind.service_specific_info_len);
+    hidl_ind->extendedServiceSpecificInfo =
+        std::vector<uint8_t>(legacy_ind.sdea_service_specific_info,
+                             legacy_ind.sdea_service_specific_info +
+                                 legacy_ind.sdea_service_specific_info_len);
+
+    return true;
+}
+
+bool convertLegacyNanDataPathRequestIndToHidl(
+    const legacy_hal::NanDataPathRequestInd& legacy_ind,
+    NanDataPathRequestInd* hidl_ind) {
+    if (!hidl_ind) {
+        LOG(ERROR)
+            << "convertLegacyNanDataPathRequestIndToHidl: hidl_ind is null";
+        return false;
+    }
+    *hidl_ind = {};
+
+    hidl_ind->discoverySessionId = legacy_ind.service_instance_id;
+    hidl_ind->peerDiscMacAddr =
+        hidl_array<uint8_t, 6>(legacy_ind.peer_disc_mac_addr);
+    hidl_ind->ndpInstanceId = legacy_ind.ndp_instance_id;
+    hidl_ind->securityRequired =
+        legacy_ind.ndp_cfg.security_cfg == legacy_hal::NAN_DP_CONFIG_SECURITY;
+    hidl_ind->appInfo =
+        std::vector<uint8_t>(legacy_ind.app_info.ndp_app_info,
+                             legacy_ind.app_info.ndp_app_info +
+                                 legacy_ind.app_info.ndp_app_info_len);
+
+    return true;
+}
+
+bool convertLegacyNdpChannelInfoToHidl(
+    const legacy_hal::NanChannelInfo& legacy_struct,
+    V1_2::NanDataPathChannelInfo* hidl_struct) {
+    if (!hidl_struct) {
+        LOG(ERROR) << "convertLegacyNdpChannelInfoToHidl: hidl_struct is null";
+        return false;
+    }
+    *hidl_struct = {};
+
+    hidl_struct->channelFreq = legacy_struct.channel;
+    hidl_struct->channelBandwidth = convertLegacyWifiChannelWidthToHidl(
+        (legacy_hal::wifi_channel_width)legacy_struct.bandwidth);
+    hidl_struct->numSpatialStreams = legacy_struct.nss;
+
+    return true;
+}
+
+bool convertLegacyNanDataPathConfirmIndToHidl(
+    const legacy_hal::NanDataPathConfirmInd& legacy_ind,
+    V1_2::NanDataPathConfirmInd* hidl_ind) {
+    if (!hidl_ind) {
+        LOG(ERROR)
+            << "convertLegacyNanDataPathConfirmIndToHidl: hidl_ind is null";
+        return false;
+    }
+    *hidl_ind = {};
+
+    hidl_ind->V1_0.ndpInstanceId = legacy_ind.ndp_instance_id;
+    hidl_ind->V1_0.dataPathSetupSuccess =
+        legacy_ind.rsp_code == legacy_hal::NAN_DP_REQUEST_ACCEPT;
+    hidl_ind->V1_0.peerNdiMacAddr =
+        hidl_array<uint8_t, 6>(legacy_ind.peer_ndi_mac_addr);
+    hidl_ind->V1_0.appInfo =
+        std::vector<uint8_t>(legacy_ind.app_info.ndp_app_info,
+                             legacy_ind.app_info.ndp_app_info +
+                                 legacy_ind.app_info.ndp_app_info_len);
+    hidl_ind->V1_0.status.status =
+        convertLegacyNanStatusTypeToHidl(legacy_ind.reason_code);
+    hidl_ind->V1_0.status.description = "";  // TODO: b/34059183
+
+    std::vector<V1_2::NanDataPathChannelInfo> channelInfo;
+    for (unsigned int i = 0; i < legacy_ind.num_channels; ++i) {
+        V1_2::NanDataPathChannelInfo hidl_struct;
+        if (!convertLegacyNdpChannelInfoToHidl(legacy_ind.channel_info[i],
+                                               &hidl_struct)) {
+            return false;
+        }
+        channelInfo.push_back(hidl_struct);
+    }
+    hidl_ind->channelInfo = channelInfo;
+
+    return true;
+}
+
+bool convertLegacyNanDataPathScheduleUpdateIndToHidl(
+    const legacy_hal::NanDataPathScheduleUpdateInd& legacy_ind,
+    V1_2::NanDataPathScheduleUpdateInd* hidl_ind) {
+    if (!hidl_ind) {
+        LOG(ERROR) << "convertLegacyNanDataPathScheduleUpdateIndToHidl: "
+                      "hidl_ind is null";
+        return false;
+    }
+    *hidl_ind = {};
+
+    hidl_ind->peerDiscoveryAddress =
+        hidl_array<uint8_t, 6>(legacy_ind.peer_mac_addr);
+    std::vector<V1_2::NanDataPathChannelInfo> channelInfo;
+    for (unsigned int i = 0; i < legacy_ind.num_channels; ++i) {
+        V1_2::NanDataPathChannelInfo hidl_struct;
+        if (!convertLegacyNdpChannelInfoToHidl(legacy_ind.channel_info[i],
+                                               &hidl_struct)) {
+            return false;
+        }
+        channelInfo.push_back(hidl_struct);
+    }
+    hidl_ind->channelInfo = channelInfo;
+    std::vector<uint32_t> ndpInstanceIds;
+    for (unsigned int i = 0; i < legacy_ind.num_ndp_instances; ++i) {
+        ndpInstanceIds.push_back(legacy_ind.ndp_instance_id[i]);
+    }
+    hidl_ind->ndpInstanceIds = ndpInstanceIds;
+
+    return true;
+}
+
+legacy_hal::wifi_rtt_type convertHidlRttTypeToLegacy(RttType type) {
+    switch (type) {
+        case RttType::ONE_SIDED:
+            return legacy_hal::RTT_TYPE_1_SIDED;
+        case RttType::TWO_SIDED:
+            return legacy_hal::RTT_TYPE_2_SIDED;
+    };
+    CHECK(false);
+}
+
+RttType convertLegacyRttTypeToHidl(legacy_hal::wifi_rtt_type type) {
+    switch (type) {
+        case legacy_hal::RTT_TYPE_1_SIDED:
+            return RttType::ONE_SIDED;
+        case legacy_hal::RTT_TYPE_2_SIDED:
+            return RttType::TWO_SIDED;
+    };
+    CHECK(false) << "Unknown legacy type: " << type;
+}
+
+legacy_hal::rtt_peer_type convertHidlRttPeerTypeToLegacy(RttPeerType type) {
+    switch (type) {
+        case RttPeerType::AP:
+            return legacy_hal::RTT_PEER_AP;
+        case RttPeerType::STA:
+            return legacy_hal::RTT_PEER_STA;
+        case RttPeerType::P2P_GO:
+            return legacy_hal::RTT_PEER_P2P_GO;
+        case RttPeerType::P2P_CLIENT:
+            return legacy_hal::RTT_PEER_P2P_CLIENT;
+        case RttPeerType::NAN:
+            return legacy_hal::RTT_PEER_NAN;
+    };
+    CHECK(false);
+}
+
+legacy_hal::wifi_channel_width convertHidlWifiChannelWidthToLegacy(
+    WifiChannelWidthInMhz type) {
+    switch (type) {
+        case WifiChannelWidthInMhz::WIDTH_20:
+            return legacy_hal::WIFI_CHAN_WIDTH_20;
+        case WifiChannelWidthInMhz::WIDTH_40:
+            return legacy_hal::WIFI_CHAN_WIDTH_40;
+        case WifiChannelWidthInMhz::WIDTH_80:
+            return legacy_hal::WIFI_CHAN_WIDTH_80;
+        case WifiChannelWidthInMhz::WIDTH_160:
+            return legacy_hal::WIFI_CHAN_WIDTH_160;
+        case WifiChannelWidthInMhz::WIDTH_80P80:
+            return legacy_hal::WIFI_CHAN_WIDTH_80P80;
+        case WifiChannelWidthInMhz::WIDTH_5:
+            return legacy_hal::WIFI_CHAN_WIDTH_5;
+        case WifiChannelWidthInMhz::WIDTH_10:
+            return legacy_hal::WIFI_CHAN_WIDTH_10;
+        case WifiChannelWidthInMhz::WIDTH_INVALID:
+            return legacy_hal::WIFI_CHAN_WIDTH_INVALID;
+    };
+    CHECK(false);
+}
+
+WifiChannelWidthInMhz convertLegacyWifiChannelWidthToHidl(
+    legacy_hal::wifi_channel_width type) {
+    switch (type) {
+        case legacy_hal::WIFI_CHAN_WIDTH_20:
+            return WifiChannelWidthInMhz::WIDTH_20;
+        case legacy_hal::WIFI_CHAN_WIDTH_40:
+            return WifiChannelWidthInMhz::WIDTH_40;
+        case legacy_hal::WIFI_CHAN_WIDTH_80:
+            return WifiChannelWidthInMhz::WIDTH_80;
+        case legacy_hal::WIFI_CHAN_WIDTH_160:
+            return WifiChannelWidthInMhz::WIDTH_160;
+        case legacy_hal::WIFI_CHAN_WIDTH_80P80:
+            return WifiChannelWidthInMhz::WIDTH_80P80;
+        case legacy_hal::WIFI_CHAN_WIDTH_5:
+            return WifiChannelWidthInMhz::WIDTH_5;
+        case legacy_hal::WIFI_CHAN_WIDTH_10:
+            return WifiChannelWidthInMhz::WIDTH_10;
+        case legacy_hal::WIFI_CHAN_WIDTH_INVALID:
+            return WifiChannelWidthInMhz::WIDTH_INVALID;
+    };
+    CHECK(false) << "Unknown legacy type: " << type;
+}
+
+legacy_hal::wifi_rtt_preamble convertHidlRttPreambleToLegacy(RttPreamble type) {
+    switch (type) {
+        case RttPreamble::LEGACY:
+            return legacy_hal::WIFI_RTT_PREAMBLE_LEGACY;
+        case RttPreamble::HT:
+            return legacy_hal::WIFI_RTT_PREAMBLE_HT;
+        case RttPreamble::VHT:
+            return legacy_hal::WIFI_RTT_PREAMBLE_VHT;
+    };
+    CHECK(false);
+}
+
+RttPreamble convertLegacyRttPreambleToHidl(legacy_hal::wifi_rtt_preamble type) {
+    switch (type) {
+        case legacy_hal::WIFI_RTT_PREAMBLE_LEGACY:
+            return RttPreamble::LEGACY;
+        case legacy_hal::WIFI_RTT_PREAMBLE_HT:
+            return RttPreamble::HT;
+        case legacy_hal::WIFI_RTT_PREAMBLE_VHT:
+            return RttPreamble::VHT;
+    };
+    CHECK(false) << "Unknown legacy type: " << type;
+}
+
+legacy_hal::wifi_rtt_bw convertHidlRttBwToLegacy(RttBw type) {
+    switch (type) {
+        case RttBw::BW_5MHZ:
+            return legacy_hal::WIFI_RTT_BW_5;
+        case RttBw::BW_10MHZ:
+            return legacy_hal::WIFI_RTT_BW_10;
+        case RttBw::BW_20MHZ:
+            return legacy_hal::WIFI_RTT_BW_20;
+        case RttBw::BW_40MHZ:
+            return legacy_hal::WIFI_RTT_BW_40;
+        case RttBw::BW_80MHZ:
+            return legacy_hal::WIFI_RTT_BW_80;
+        case RttBw::BW_160MHZ:
+            return legacy_hal::WIFI_RTT_BW_160;
+    };
+    CHECK(false);
+}
+
+RttBw convertLegacyRttBwToHidl(legacy_hal::wifi_rtt_bw type) {
+    switch (type) {
+        case legacy_hal::WIFI_RTT_BW_5:
+            return RttBw::BW_5MHZ;
+        case legacy_hal::WIFI_RTT_BW_10:
+            return RttBw::BW_10MHZ;
+        case legacy_hal::WIFI_RTT_BW_20:
+            return RttBw::BW_20MHZ;
+        case legacy_hal::WIFI_RTT_BW_40:
+            return RttBw::BW_40MHZ;
+        case legacy_hal::WIFI_RTT_BW_80:
+            return RttBw::BW_80MHZ;
+        case legacy_hal::WIFI_RTT_BW_160:
+            return RttBw::BW_160MHZ;
+    };
+    CHECK(false) << "Unknown legacy type: " << type;
+}
+
+legacy_hal::wifi_motion_pattern convertHidlRttMotionPatternToLegacy(
+    RttMotionPattern type) {
+    switch (type) {
+        case RttMotionPattern::NOT_EXPECTED:
+            return legacy_hal::WIFI_MOTION_NOT_EXPECTED;
+        case RttMotionPattern::EXPECTED:
+            return legacy_hal::WIFI_MOTION_EXPECTED;
+        case RttMotionPattern::UNKNOWN:
+            return legacy_hal::WIFI_MOTION_UNKNOWN;
+    };
+    CHECK(false);
+}
+
+WifiRatePreamble convertLegacyWifiRatePreambleToHidl(uint8_t preamble) {
+    switch (preamble) {
+        case 0:
+            return WifiRatePreamble::OFDM;
+        case 1:
+            return WifiRatePreamble::CCK;
+        case 2:
+            return WifiRatePreamble::HT;
+        case 3:
+            return WifiRatePreamble::VHT;
+        default:
+            return WifiRatePreamble::RESERVED;
+    };
+    CHECK(false) << "Unknown legacy preamble: " << preamble;
+}
+
+WifiRateNss convertLegacyWifiRateNssToHidl(uint8_t nss) {
+    switch (nss) {
+        case 0:
+            return WifiRateNss::NSS_1x1;
+        case 1:
+            return WifiRateNss::NSS_2x2;
+        case 2:
+            return WifiRateNss::NSS_3x3;
+        case 3:
+            return WifiRateNss::NSS_4x4;
+    };
+    CHECK(false) << "Unknown legacy nss: " << nss;
+    return {};
+}
+
+RttStatus convertLegacyRttStatusToHidl(legacy_hal::wifi_rtt_status status) {
+    switch (status) {
+        case legacy_hal::RTT_STATUS_SUCCESS:
+            return RttStatus::SUCCESS;
+        case legacy_hal::RTT_STATUS_FAILURE:
+            return RttStatus::FAILURE;
+        case legacy_hal::RTT_STATUS_FAIL_NO_RSP:
+            return RttStatus::FAIL_NO_RSP;
+        case legacy_hal::RTT_STATUS_FAIL_REJECTED:
+            return RttStatus::FAIL_REJECTED;
+        case legacy_hal::RTT_STATUS_FAIL_NOT_SCHEDULED_YET:
+            return RttStatus::FAIL_NOT_SCHEDULED_YET;
+        case legacy_hal::RTT_STATUS_FAIL_TM_TIMEOUT:
+            return RttStatus::FAIL_TM_TIMEOUT;
+        case legacy_hal::RTT_STATUS_FAIL_AP_ON_DIFF_CHANNEL:
+            return RttStatus::FAIL_AP_ON_DIFF_CHANNEL;
+        case legacy_hal::RTT_STATUS_FAIL_NO_CAPABILITY:
+            return RttStatus::FAIL_NO_CAPABILITY;
+        case legacy_hal::RTT_STATUS_ABORTED:
+            return RttStatus::ABORTED;
+        case legacy_hal::RTT_STATUS_FAIL_INVALID_TS:
+            return RttStatus::FAIL_INVALID_TS;
+        case legacy_hal::RTT_STATUS_FAIL_PROTOCOL:
+            return RttStatus::FAIL_PROTOCOL;
+        case legacy_hal::RTT_STATUS_FAIL_SCHEDULE:
+            return RttStatus::FAIL_SCHEDULE;
+        case legacy_hal::RTT_STATUS_FAIL_BUSY_TRY_LATER:
+            return RttStatus::FAIL_BUSY_TRY_LATER;
+        case legacy_hal::RTT_STATUS_INVALID_REQ:
+            return RttStatus::INVALID_REQ;
+        case legacy_hal::RTT_STATUS_NO_WIFI:
+            return RttStatus::NO_WIFI;
+        case legacy_hal::RTT_STATUS_FAIL_FTM_PARAM_OVERRIDE:
+            return RttStatus::FAIL_FTM_PARAM_OVERRIDE;
+        case legacy_hal::RTT_STATUS_NAN_RANGING_PROTOCOL_FAILURE:
+            return RttStatus::FAILURE;  // TODO: add HIDL enumeration
+        case legacy_hal::RTT_STATUS_NAN_RANGING_CONCURRENCY_NOT_SUPPORTED:
+            return RttStatus::FAILURE;  // TODO: add HIDL enumeration
+    };
+    CHECK(false) << "Unknown legacy status: " << status;
+}
+
+bool convertHidlWifiChannelInfoToLegacy(
+    const WifiChannelInfo& hidl_info,
+    legacy_hal::wifi_channel_info* legacy_info) {
+    if (!legacy_info) {
+        return false;
+    }
+    *legacy_info = {};
+    legacy_info->width = convertHidlWifiChannelWidthToLegacy(hidl_info.width);
+    legacy_info->center_freq = hidl_info.centerFreq;
+    legacy_info->center_freq0 = hidl_info.centerFreq0;
+    legacy_info->center_freq1 = hidl_info.centerFreq1;
+    return true;
+}
+
+bool convertLegacyWifiChannelInfoToHidl(
+    const legacy_hal::wifi_channel_info& legacy_info,
+    WifiChannelInfo* hidl_info) {
+    if (!hidl_info) {
+        return false;
+    }
+    *hidl_info = {};
+    hidl_info->width = convertLegacyWifiChannelWidthToHidl(legacy_info.width);
+    hidl_info->centerFreq = legacy_info.center_freq;
+    hidl_info->centerFreq0 = legacy_info.center_freq0;
+    hidl_info->centerFreq1 = legacy_info.center_freq1;
+    return true;
+}
+
+bool convertHidlRttConfigToLegacy(const RttConfig& hidl_config,
+                                  legacy_hal::wifi_rtt_config* legacy_config) {
+    if (!legacy_config) {
+        return false;
+    }
+    *legacy_config = {};
+    CHECK(hidl_config.addr.size() == sizeof(legacy_config->addr));
+    memcpy(legacy_config->addr, hidl_config.addr.data(),
+           hidl_config.addr.size());
+    legacy_config->type = convertHidlRttTypeToLegacy(hidl_config.type);
+    legacy_config->peer = convertHidlRttPeerTypeToLegacy(hidl_config.peer);
+    if (!convertHidlWifiChannelInfoToLegacy(hidl_config.channel,
+                                            &legacy_config->channel)) {
+        return false;
+    }
+    legacy_config->burst_period = hidl_config.burstPeriod;
+    legacy_config->num_burst = hidl_config.numBurst;
+    legacy_config->num_frames_per_burst = hidl_config.numFramesPerBurst;
+    legacy_config->num_retries_per_rtt_frame =
+        hidl_config.numRetriesPerRttFrame;
+    legacy_config->num_retries_per_ftmr = hidl_config.numRetriesPerFtmr;
+    legacy_config->LCI_request = hidl_config.mustRequestLci;
+    legacy_config->LCR_request = hidl_config.mustRequestLcr;
+    legacy_config->burst_duration = hidl_config.burstDuration;
+    legacy_config->preamble =
+        convertHidlRttPreambleToLegacy(hidl_config.preamble);
+    legacy_config->bw = convertHidlRttBwToLegacy(hidl_config.bw);
+    return true;
+}
+
+bool convertHidlVectorOfRttConfigToLegacy(
+    const std::vector<RttConfig>& hidl_configs,
+    std::vector<legacy_hal::wifi_rtt_config>* legacy_configs) {
+    if (!legacy_configs) {
+        return false;
+    }
+    *legacy_configs = {};
+    for (const auto& hidl_config : hidl_configs) {
+        legacy_hal::wifi_rtt_config legacy_config;
+        if (!convertHidlRttConfigToLegacy(hidl_config, &legacy_config)) {
+            return false;
+        }
+        legacy_configs->push_back(legacy_config);
+    }
+    return true;
+}
+
+bool convertHidlRttLciInformationToLegacy(
+    const RttLciInformation& hidl_info,
+    legacy_hal::wifi_lci_information* legacy_info) {
+    if (!legacy_info) {
+        return false;
+    }
+    *legacy_info = {};
+    legacy_info->latitude = hidl_info.latitude;
+    legacy_info->longitude = hidl_info.longitude;
+    legacy_info->altitude = hidl_info.altitude;
+    legacy_info->latitude_unc = hidl_info.latitudeUnc;
+    legacy_info->longitude_unc = hidl_info.longitudeUnc;
+    legacy_info->altitude_unc = hidl_info.altitudeUnc;
+    legacy_info->motion_pattern =
+        convertHidlRttMotionPatternToLegacy(hidl_info.motionPattern);
+    legacy_info->floor = hidl_info.floor;
+    legacy_info->height_above_floor = hidl_info.heightAboveFloor;
+    legacy_info->height_unc = hidl_info.heightUnc;
+    return true;
+}
+
+bool convertHidlRttLcrInformationToLegacy(
+    const RttLcrInformation& hidl_info,
+    legacy_hal::wifi_lcr_information* legacy_info) {
+    if (!legacy_info) {
+        return false;
+    }
+    *legacy_info = {};
+    CHECK(hidl_info.countryCode.size() == sizeof(legacy_info->country_code));
+    memcpy(legacy_info->country_code, hidl_info.countryCode.data(),
+           hidl_info.countryCode.size());
+    if (hidl_info.civicInfo.size() > sizeof(legacy_info->civic_info)) {
+        return false;
+    }
+    legacy_info->length = hidl_info.civicInfo.size();
+    memcpy(legacy_info->civic_info, hidl_info.civicInfo.c_str(),
+           hidl_info.civicInfo.size());
+    return true;
+}
+
+bool convertHidlRttResponderToLegacy(
+    const RttResponder& hidl_responder,
+    legacy_hal::wifi_rtt_responder* legacy_responder) {
+    if (!legacy_responder) {
+        return false;
+    }
+    *legacy_responder = {};
+    if (!convertHidlWifiChannelInfoToLegacy(hidl_responder.channel,
+                                            &legacy_responder->channel)) {
+        return false;
+    }
+    legacy_responder->preamble =
+        convertHidlRttPreambleToLegacy(hidl_responder.preamble);
+    return true;
+}
+
+bool convertLegacyRttResponderToHidl(
+    const legacy_hal::wifi_rtt_responder& legacy_responder,
+    RttResponder* hidl_responder) {
+    if (!hidl_responder) {
+        return false;
+    }
+    *hidl_responder = {};
+    if (!convertLegacyWifiChannelInfoToHidl(legacy_responder.channel,
+                                            &hidl_responder->channel)) {
+        return false;
+    }
+    hidl_responder->preamble =
+        convertLegacyRttPreambleToHidl(legacy_responder.preamble);
+    return true;
+}
+
+bool convertLegacyRttCapabilitiesToHidl(
+    const legacy_hal::wifi_rtt_capabilities& legacy_capabilities,
+    RttCapabilities* hidl_capabilities) {
+    if (!hidl_capabilities) {
+        return false;
+    }
+    *hidl_capabilities = {};
+    hidl_capabilities->rttOneSidedSupported =
+        legacy_capabilities.rtt_one_sided_supported;
+    hidl_capabilities->rttFtmSupported = legacy_capabilities.rtt_ftm_supported;
+    hidl_capabilities->lciSupported = legacy_capabilities.lci_support;
+    hidl_capabilities->lcrSupported = legacy_capabilities.lcr_support;
+    hidl_capabilities->responderSupported =
+        legacy_capabilities.responder_supported;
+    hidl_capabilities->preambleSupport = 0;
+    for (const auto flag : {legacy_hal::WIFI_RTT_PREAMBLE_LEGACY,
+                            legacy_hal::WIFI_RTT_PREAMBLE_HT,
+                            legacy_hal::WIFI_RTT_PREAMBLE_VHT}) {
+        if (legacy_capabilities.preamble_support & flag) {
+            hidl_capabilities->preambleSupport |=
+                static_cast<std::underlying_type<RttPreamble>::type>(
+                    convertLegacyRttPreambleToHidl(flag));
+        }
+    }
+    hidl_capabilities->bwSupport = 0;
+    for (const auto flag :
+         {legacy_hal::WIFI_RTT_BW_5, legacy_hal::WIFI_RTT_BW_10,
+          legacy_hal::WIFI_RTT_BW_20, legacy_hal::WIFI_RTT_BW_40,
+          legacy_hal::WIFI_RTT_BW_80, legacy_hal::WIFI_RTT_BW_160}) {
+        if (legacy_capabilities.bw_support & flag) {
+            hidl_capabilities->bwSupport |=
+                static_cast<std::underlying_type<RttBw>::type>(
+                    convertLegacyRttBwToHidl(flag));
+        }
+    }
+    hidl_capabilities->mcVersion = legacy_capabilities.mc_version;
+    return true;
+}
+
+bool convertLegacyWifiRateInfoToHidl(const legacy_hal::wifi_rate& legacy_rate,
+                                     WifiRateInfo* hidl_rate) {
+    if (!hidl_rate) {
+        return false;
+    }
+    *hidl_rate = {};
+    hidl_rate->preamble =
+        convertLegacyWifiRatePreambleToHidl(legacy_rate.preamble);
+    hidl_rate->nss = convertLegacyWifiRateNssToHidl(legacy_rate.nss);
+    hidl_rate->bw = convertLegacyWifiChannelWidthToHidl(
+        static_cast<legacy_hal::wifi_channel_width>(legacy_rate.bw));
+    hidl_rate->rateMcsIdx = legacy_rate.rateMcsIdx;
+    hidl_rate->bitRateInKbps = legacy_rate.bitrate;
+    return true;
+}
+
+bool convertLegacyRttResultToHidl(
+    const legacy_hal::wifi_rtt_result& legacy_result, RttResult* hidl_result) {
+    if (!hidl_result) {
+        return false;
+    }
+    *hidl_result = {};
+    CHECK(sizeof(legacy_result.addr) == hidl_result->addr.size());
+    memcpy(hidl_result->addr.data(), legacy_result.addr,
+           sizeof(legacy_result.addr));
+    hidl_result->burstNum = legacy_result.burst_num;
+    hidl_result->measurementNumber = legacy_result.measurement_number;
+    hidl_result->successNumber = legacy_result.success_number;
+    hidl_result->numberPerBurstPeer = legacy_result.number_per_burst_peer;
+    hidl_result->status = convertLegacyRttStatusToHidl(legacy_result.status);
+    hidl_result->retryAfterDuration = legacy_result.retry_after_duration;
+    hidl_result->type = convertLegacyRttTypeToHidl(legacy_result.type);
+    hidl_result->rssi = legacy_result.rssi;
+    hidl_result->rssiSpread = legacy_result.rssi_spread;
+    if (!convertLegacyWifiRateInfoToHidl(legacy_result.tx_rate,
+                                         &hidl_result->txRate)) {
+        return false;
+    }
+    if (!convertLegacyWifiRateInfoToHidl(legacy_result.rx_rate,
+                                         &hidl_result->rxRate)) {
+        return false;
+    }
+    hidl_result->rtt = legacy_result.rtt;
+    hidl_result->rttSd = legacy_result.rtt_sd;
+    hidl_result->rttSpread = legacy_result.rtt_spread;
+    hidl_result->distanceInMm = legacy_result.distance_mm;
+    hidl_result->distanceSdInMm = legacy_result.distance_sd_mm;
+    hidl_result->distanceSpreadInMm = legacy_result.distance_spread_mm;
+    hidl_result->timeStampInUs = legacy_result.ts;
+    hidl_result->burstDurationInMs = legacy_result.burst_duration;
+    hidl_result->negotiatedBurstNum = legacy_result.negotiated_burst_num;
+    if (legacy_result.LCI &&
+        !convertLegacyIeToHidl(*legacy_result.LCI, &hidl_result->lci)) {
+        return false;
+    }
+    if (legacy_result.LCR &&
+        !convertLegacyIeToHidl(*legacy_result.LCR, &hidl_result->lcr)) {
+        return false;
+    }
+    return true;
+}
+
+bool convertLegacyVectorOfRttResultToHidl(
+    const std::vector<const legacy_hal::wifi_rtt_result*>& legacy_results,
+    std::vector<RttResult>* hidl_results) {
+    if (!hidl_results) {
+        return false;
+    }
+    *hidl_results = {};
+    for (const auto legacy_result : legacy_results) {
+        RttResult hidl_result;
+        if (!convertLegacyRttResultToHidl(*legacy_result, &hidl_result)) {
+            return false;
+        }
+        hidl_results->push_back(hidl_result);
+    }
+    return true;
+}
+}  // namespace hidl_struct_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/hidl_struct_util.h b/wifi/1.3/default/hidl_struct_util.h
new file mode 100644
index 0000000..3eefd95
--- /dev/null
+++ b/wifi/1.3/default/hidl_struct_util.h
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HIDL_STRUCT_UTIL_H_
+#define HIDL_STRUCT_UTIL_H_
+
+#include <vector>
+
+#include <android/hardware/wifi/1.0/IWifiChip.h>
+#include <android/hardware/wifi/1.0/types.h>
+#include <android/hardware/wifi/1.2/IWifiChipEventCallback.h>
+#include <android/hardware/wifi/1.2/types.h>
+#include <android/hardware/wifi/1.3/IWifiChip.h>
+#include <android/hardware/wifi/1.3/types.h>
+
+#include "wifi_legacy_hal.h"
+
+/**
+ * This file contains a bunch of functions to convert structs from the legacy
+ * HAL to HIDL and vice versa.
+ * TODO(b/32093047): Add unit tests for these conversion methods in the VTS test
+ * suite.
+ */
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace hidl_struct_util {
+using namespace android::hardware::wifi::V1_0;
+
+// Chip conversion methods.
+bool convertLegacyFeaturesToHidlChipCapabilities(
+    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
+    uint32_t* hidl_caps);
+bool convertLegacyDebugRingBufferStatusToHidl(
+    const legacy_hal::wifi_ring_buffer_status& legacy_status,
+    WifiDebugRingBufferStatus* hidl_status);
+bool convertLegacyVectorOfDebugRingBufferStatusToHidl(
+    const std::vector<legacy_hal::wifi_ring_buffer_status>& legacy_status_vec,
+    std::vector<WifiDebugRingBufferStatus>* hidl_status_vec);
+bool convertLegacyWakeReasonStatsToHidl(
+    const legacy_hal::WakeReasonStats& legacy_stats,
+    WifiDebugHostWakeReasonStats* hidl_stats);
+legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy(
+    V1_1::IWifiChip::TxPowerScenario hidl_scenario);
+legacy_hal::wifi_latency_mode convertHidlLatencyModeToLegacy(
+    V1_3::IWifiChip::LatencyMode hidl_latency_mode);
+legacy_hal::wifi_power_scenario convertHidlTxPowerScenarioToLegacy_1_2(
+    V1_2::IWifiChip::TxPowerScenario hidl_scenario);
+bool convertLegacyWifiMacInfosToHidl(
+    const std::vector<legacy_hal::WifiMacInfo>& legacy_mac_infos,
+    std::vector<V1_2::IWifiChipEventCallback::RadioModeInfo>*
+        hidl_radio_mode_infos);
+
+// STA iface conversion methods.
+bool convertLegacyFeaturesToHidlStaCapabilities(
+    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
+    uint32_t* hidl_caps);
+bool convertLegacyApfCapabilitiesToHidl(
+    const legacy_hal::PacketFilterCapabilities& legacy_caps,
+    StaApfPacketFilterCapabilities* hidl_caps);
+bool convertLegacyGscanCapabilitiesToHidl(
+    const legacy_hal::wifi_gscan_capabilities& legacy_caps,
+    StaBackgroundScanCapabilities* hidl_caps);
+legacy_hal::wifi_band convertHidlWifiBandToLegacy(WifiBand band);
+bool convertHidlGscanParamsToLegacy(
+    const StaBackgroundScanParameters& hidl_scan_params,
+    legacy_hal::wifi_scan_cmd_params* legacy_scan_params);
+// |has_ie_data| indicates whether or not the wifi_scan_result includes 802.11
+// Information Elements (IEs)
+bool convertLegacyGscanResultToHidl(
+    const legacy_hal::wifi_scan_result& legacy_scan_result, bool has_ie_data,
+    StaScanResult* hidl_scan_result);
+// |cached_results| is assumed to not include IEs.
+bool convertLegacyVectorOfCachedGscanResultsToHidl(
+    const std::vector<legacy_hal::wifi_cached_scan_results>&
+        legacy_cached_scan_results,
+    std::vector<StaScanData>* hidl_scan_datas);
+bool convertLegacyLinkLayerStatsToHidl(
+    const legacy_hal::LinkLayerStats& legacy_stats,
+    V1_3::StaLinkLayerStats* hidl_stats);
+bool convertLegacyRoamingCapabilitiesToHidl(
+    const legacy_hal::wifi_roaming_capabilities& legacy_caps,
+    StaRoamingCapabilities* hidl_caps);
+bool convertHidlRoamingConfigToLegacy(
+    const StaRoamingConfig& hidl_config,
+    legacy_hal::wifi_roaming_config* legacy_config);
+legacy_hal::fw_roaming_state_t convertHidlRoamingStateToLegacy(
+    StaRoamingState state);
+bool convertLegacyVectorOfDebugTxPacketFateToHidl(
+    const std::vector<legacy_hal::wifi_tx_report>& legacy_fates,
+    std::vector<WifiDebugTxPacketFateReport>* hidl_fates);
+bool convertLegacyVectorOfDebugRxPacketFateToHidl(
+    const std::vector<legacy_hal::wifi_rx_report>& legacy_fates,
+    std::vector<WifiDebugRxPacketFateReport>* hidl_fates);
+
+// NAN iface conversion methods.
+void convertToWifiNanStatus(legacy_hal::NanStatusType type, const char* str,
+                            size_t max_len, WifiNanStatus* wifiNanStatus);
+bool convertHidlNanEnableRequestToLegacy(
+    const NanEnableRequest& hidl_request,
+    legacy_hal::NanEnableRequest* legacy_request);
+bool convertHidlNanConfigRequestToLegacy(
+    const NanConfigRequest& hidl_request,
+    legacy_hal::NanConfigRequest* legacy_request);
+bool convertHidlNanEnableRequest_1_2ToLegacy(
+    const NanEnableRequest& hidl_request1,
+    const V1_2::NanConfigRequestSupplemental& hidl_request2,
+    legacy_hal::NanEnableRequest* legacy_request);
+bool convertHidlNanConfigRequest_1_2ToLegacy(
+    const NanConfigRequest& hidl_request1,
+    const V1_2::NanConfigRequestSupplemental& hidl_request2,
+    legacy_hal::NanConfigRequest* legacy_request);
+bool convertHidlNanPublishRequestToLegacy(
+    const NanPublishRequest& hidl_request,
+    legacy_hal::NanPublishRequest* legacy_request);
+bool convertHidlNanSubscribeRequestToLegacy(
+    const NanSubscribeRequest& hidl_request,
+    legacy_hal::NanSubscribeRequest* legacy_request);
+bool convertHidlNanTransmitFollowupRequestToLegacy(
+    const NanTransmitFollowupRequest& hidl_request,
+    legacy_hal::NanTransmitFollowupRequest* legacy_request);
+bool convertHidlNanDataPathInitiatorRequestToLegacy(
+    const NanInitiateDataPathRequest& hidl_request,
+    legacy_hal::NanDataPathInitiatorRequest* legacy_request);
+bool convertHidlNanDataPathIndicationResponseToLegacy(
+    const NanRespondToDataPathIndicationRequest& hidl_response,
+    legacy_hal::NanDataPathIndicationResponse* legacy_response);
+bool convertLegacyNanResponseHeaderToHidl(
+    const legacy_hal::NanResponseMsg& legacy_response,
+    WifiNanStatus* wifiNanStatus);
+bool convertLegacyNanCapabilitiesResponseToHidl(
+    const legacy_hal::NanCapabilities& legacy_response,
+    NanCapabilities* hidl_response);
+bool convertLegacyNanMatchIndToHidl(const legacy_hal::NanMatchInd& legacy_ind,
+                                    NanMatchInd* hidl_ind);
+bool convertLegacyNanFollowupIndToHidl(
+    const legacy_hal::NanFollowupInd& legacy_ind,
+    NanFollowupReceivedInd* hidl_ind);
+bool convertLegacyNanDataPathRequestIndToHidl(
+    const legacy_hal::NanDataPathRequestInd& legacy_ind,
+    NanDataPathRequestInd* hidl_ind);
+bool convertLegacyNanDataPathConfirmIndToHidl(
+    const legacy_hal::NanDataPathConfirmInd& legacy_ind,
+    V1_2::NanDataPathConfirmInd* hidl_ind);
+bool convertLegacyNanDataPathScheduleUpdateIndToHidl(
+    const legacy_hal::NanDataPathScheduleUpdateInd& legacy_ind,
+    V1_2::NanDataPathScheduleUpdateInd* hidl_ind);
+
+// RTT controller conversion methods.
+bool convertHidlVectorOfRttConfigToLegacy(
+    const std::vector<RttConfig>& hidl_configs,
+    std::vector<legacy_hal::wifi_rtt_config>* legacy_configs);
+bool convertHidlRttLciInformationToLegacy(
+    const RttLciInformation& hidl_info,
+    legacy_hal::wifi_lci_information* legacy_info);
+bool convertHidlRttLcrInformationToLegacy(
+    const RttLcrInformation& hidl_info,
+    legacy_hal::wifi_lcr_information* legacy_info);
+bool convertHidlRttResponderToLegacy(
+    const RttResponder& hidl_responder,
+    legacy_hal::wifi_rtt_responder* legacy_responder);
+bool convertHidlWifiChannelInfoToLegacy(
+    const WifiChannelInfo& hidl_info,
+    legacy_hal::wifi_channel_info* legacy_info);
+bool convertLegacyRttResponderToHidl(
+    const legacy_hal::wifi_rtt_responder& legacy_responder,
+    RttResponder* hidl_responder);
+bool convertLegacyRttCapabilitiesToHidl(
+    const legacy_hal::wifi_rtt_capabilities& legacy_capabilities,
+    RttCapabilities* hidl_capabilities);
+bool convertLegacyVectorOfRttResultToHidl(
+    const std::vector<const legacy_hal::wifi_rtt_result*>& legacy_results,
+    std::vector<RttResult>* hidl_results);
+}  // namespace hidl_struct_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // HIDL_STRUCT_UTIL_H_
diff --git a/wifi/1.3/default/hidl_sync_util.cpp b/wifi/1.3/default/hidl_sync_util.cpp
new file mode 100644
index 0000000..160727f
--- /dev/null
+++ b/wifi/1.3/default/hidl_sync_util.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "hidl_sync_util.h"
+
+namespace {
+std::recursive_mutex g_mutex;
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace hidl_sync_util {
+
+std::unique_lock<std::recursive_mutex> acquireGlobalLock() {
+    return std::unique_lock<std::recursive_mutex>{g_mutex};
+}
+
+}  // namespace hidl_sync_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/hidl_sync_util.h b/wifi/1.3/default/hidl_sync_util.h
new file mode 100644
index 0000000..ebfb051
--- /dev/null
+++ b/wifi/1.3/default/hidl_sync_util.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HIDL_SYNC_UTIL_H_
+#define HIDL_SYNC_UTIL_H_
+
+#include <mutex>
+
+// Utility that provides a global lock to synchronize access between
+// the HIDL thread and the legacy HAL's event loop.
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace hidl_sync_util {
+std::unique_lock<std::recursive_mutex> acquireGlobalLock();
+}  // namespace hidl_sync_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+#endif  // HIDL_SYNC_UTIL_H_
diff --git a/wifi/1.3/default/ringbuffer.cpp b/wifi/1.3/default/ringbuffer.cpp
new file mode 100644
index 0000000..1294c52
--- /dev/null
+++ b/wifi/1.3/default/ringbuffer.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "ringbuffer.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+Ringbuffer::Ringbuffer(size_t maxSize) : size_(0), maxSize_(maxSize) {}
+
+void Ringbuffer::append(const std::vector<uint8_t>& input) {
+    if (input.size() == 0) {
+        return;
+    }
+    if (input.size() > maxSize_) {
+        LOG(INFO) << "Oversized message of " << input.size()
+                  << " bytes is dropped";
+        return;
+    }
+    data_.push_back(input);
+    size_ += input.size() * sizeof(input[0]);
+    while (size_ > maxSize_) {
+        size_ -= data_.front().size() * sizeof(data_.front()[0]);
+        data_.pop_front();
+    }
+}
+
+const std::list<std::vector<uint8_t>>& Ringbuffer::getData() const {
+    return data_;
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/ringbuffer.h b/wifi/1.3/default/ringbuffer.h
new file mode 100644
index 0000000..d9f8df6
--- /dev/null
+++ b/wifi/1.3/default/ringbuffer.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RINGBUFFER_H_
+#define RINGBUFFER_H_
+
+#include <list>
+#include <vector>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+/**
+ * Ringbuffer object used to store debug data.
+ */
+class Ringbuffer {
+   public:
+    explicit Ringbuffer(size_t maxSize);
+
+    // Appends the data buffer and deletes from the front until buffer is
+    // within |maxSize_|.
+    void append(const std::vector<uint8_t>& input);
+    const std::list<std::vector<uint8_t>>& getData() const;
+
+   private:
+    std::list<std::vector<uint8_t>> data_;
+    size_t size_;
+    size_t maxSize_;
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // RINGBUFFER_H_
diff --git a/wifi/1.3/default/service.cpp b/wifi/1.3/default/service.cpp
new file mode 100644
index 0000000..73015cf
--- /dev/null
+++ b/wifi/1.3/default/service.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <hidl/HidlLazyUtils.h>
+#include <hidl/HidlTransportSupport.h>
+#include <utils/Looper.h>
+#include <utils/StrongPointer.h>
+
+#include "wifi.h"
+#include "wifi_feature_flags.h"
+#include "wifi_legacy_hal.h"
+#include "wifi_mode_controller.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::LazyServiceRegistrar;
+using android::hardware::wifi::V1_3::implementation::feature_flags::
+    WifiFeatureFlags;
+using android::hardware::wifi::V1_3::implementation::iface_util::WifiIfaceUtil;
+using android::hardware::wifi::V1_3::implementation::legacy_hal::WifiLegacyHal;
+using android::hardware::wifi::V1_3::implementation::mode_controller::
+    WifiModeController;
+
+#ifdef LAZY_SERVICE
+const bool kLazyService = true;
+#else
+const bool kLazyService = false;
+#endif
+
+int main(int /*argc*/, char** argv) {
+    android::base::InitLogging(
+        argv, android::base::LogdLogger(android::base::SYSTEM));
+    LOG(INFO) << "Wifi Hal is booting up...";
+
+    configureRpcThreadpool(1, true /* callerWillJoin */);
+
+    // Setup hwbinder service
+    android::sp<android::hardware::wifi::V1_3::IWifi> service =
+        new android::hardware::wifi::V1_3::implementation::Wifi(
+            std::make_shared<WifiLegacyHal>(),
+            std::make_shared<WifiModeController>(),
+            std::make_shared<WifiIfaceUtil>(),
+            std::make_shared<WifiFeatureFlags>());
+    if (kLazyService) {
+        LazyServiceRegistrar registrar;
+        CHECK_EQ(registrar.registerService(service), android::NO_ERROR)
+            << "Failed to register wifi HAL";
+    } else {
+        CHECK_EQ(service->registerAsService(), android::NO_ERROR)
+            << "Failed to register wifi HAL";
+    }
+
+    joinRpcThreadpool();
+
+    LOG(INFO) << "Wifi Hal is terminating...";
+    return 0;
+}
diff --git a/wifi/1.3/default/tests/hidl_struct_util_unit_tests.cpp b/wifi/1.3/default/tests/hidl_struct_util_unit_tests.cpp
new file mode 100644
index 0000000..dbf7bd6
--- /dev/null
+++ b/wifi/1.3/default/tests/hidl_struct_util_unit_tests.cpp
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <gmock/gmock.h>
+
+#undef NAN
+#include "hidl_struct_util.h"
+
+using testing::Test;
+
+namespace {
+constexpr uint32_t kMacId1 = 1;
+constexpr uint32_t kMacId2 = 2;
+constexpr uint32_t kIfaceChannel1 = 3;
+constexpr uint32_t kIfaceChannel2 = 5;
+constexpr char kIfaceName1[] = "wlan0";
+constexpr char kIfaceName2[] = "wlan1";
+}  // namespace
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+using ::android::hardware::wifi::V1_0::WifiChannelWidthInMhz;
+
+class HidlStructUtilTest : public Test {};
+
+TEST_F(HidlStructUtilTest, CanConvertLegacyWifiMacInfosToHidlWithOneMac) {
+    std::vector<legacy_hal::WifiMacInfo> legacy_mac_infos;
+    legacy_hal::WifiMacInfo legacy_mac_info1 = {
+        .wlan_mac_id = kMacId1,
+        .mac_band =
+            legacy_hal::WLAN_MAC_5_0_BAND | legacy_hal::WLAN_MAC_2_4_BAND};
+    legacy_hal::WifiIfaceInfo legacy_iface_info1 = {.name = kIfaceName1,
+                                                    .channel = kIfaceChannel1};
+    legacy_hal::WifiIfaceInfo legacy_iface_info2 = {.name = kIfaceName2,
+                                                    .channel = kIfaceChannel2};
+    legacy_mac_info1.iface_infos.push_back(legacy_iface_info1);
+    legacy_mac_info1.iface_infos.push_back(legacy_iface_info2);
+    legacy_mac_infos.push_back(legacy_mac_info1);
+
+    std::vector<V1_2::IWifiChipEventCallback::RadioModeInfo>
+        hidl_radio_mode_infos;
+    ASSERT_TRUE(hidl_struct_util::convertLegacyWifiMacInfosToHidl(
+        legacy_mac_infos, &hidl_radio_mode_infos));
+
+    ASSERT_EQ(1u, hidl_radio_mode_infos.size());
+    auto hidl_radio_mode_info1 = hidl_radio_mode_infos[0];
+    EXPECT_EQ(legacy_mac_info1.wlan_mac_id, hidl_radio_mode_info1.radioId);
+    EXPECT_EQ(WifiBand::BAND_24GHZ_5GHZ, hidl_radio_mode_info1.bandInfo);
+    ASSERT_EQ(2u, hidl_radio_mode_info1.ifaceInfos.size());
+    auto hidl_iface_info1 = hidl_radio_mode_info1.ifaceInfos[0];
+    EXPECT_EQ(legacy_iface_info1.name, hidl_iface_info1.name);
+    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info1.channel),
+              hidl_iface_info1.channel);
+    auto hidl_iface_info2 = hidl_radio_mode_info1.ifaceInfos[1];
+    EXPECT_EQ(legacy_iface_info2.name, hidl_iface_info2.name);
+    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info2.channel),
+              hidl_iface_info2.channel);
+}
+
+TEST_F(HidlStructUtilTest, CanConvertLegacyWifiMacInfosToHidlWithTwoMac) {
+    std::vector<legacy_hal::WifiMacInfo> legacy_mac_infos;
+    legacy_hal::WifiMacInfo legacy_mac_info1 = {
+        .wlan_mac_id = kMacId1, .mac_band = legacy_hal::WLAN_MAC_5_0_BAND};
+    legacy_hal::WifiIfaceInfo legacy_iface_info1 = {.name = kIfaceName1,
+                                                    .channel = kIfaceChannel1};
+    legacy_hal::WifiMacInfo legacy_mac_info2 = {
+        .wlan_mac_id = kMacId2, .mac_band = legacy_hal::WLAN_MAC_2_4_BAND};
+    legacy_hal::WifiIfaceInfo legacy_iface_info2 = {.name = kIfaceName2,
+                                                    .channel = kIfaceChannel2};
+    legacy_mac_info1.iface_infos.push_back(legacy_iface_info1);
+    legacy_mac_infos.push_back(legacy_mac_info1);
+    legacy_mac_info2.iface_infos.push_back(legacy_iface_info2);
+    legacy_mac_infos.push_back(legacy_mac_info2);
+
+    std::vector<V1_2::IWifiChipEventCallback::RadioModeInfo>
+        hidl_radio_mode_infos;
+    ASSERT_TRUE(hidl_struct_util::convertLegacyWifiMacInfosToHidl(
+        legacy_mac_infos, &hidl_radio_mode_infos));
+
+    ASSERT_EQ(2u, hidl_radio_mode_infos.size());
+
+    // Find mac info 1.
+    const auto hidl_radio_mode_info1 =
+        std::find_if(hidl_radio_mode_infos.begin(), hidl_radio_mode_infos.end(),
+                     [&legacy_mac_info1](
+                         const V1_2::IWifiChipEventCallback::RadioModeInfo& x) {
+                         return x.radioId == legacy_mac_info1.wlan_mac_id;
+                     });
+    ASSERT_NE(hidl_radio_mode_infos.end(), hidl_radio_mode_info1);
+    EXPECT_EQ(WifiBand::BAND_5GHZ, hidl_radio_mode_info1->bandInfo);
+    ASSERT_EQ(1u, hidl_radio_mode_info1->ifaceInfos.size());
+    auto hidl_iface_info1 = hidl_radio_mode_info1->ifaceInfos[0];
+    EXPECT_EQ(legacy_iface_info1.name, hidl_iface_info1.name);
+    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info1.channel),
+              hidl_iface_info1.channel);
+
+    // Find mac info 2.
+    const auto hidl_radio_mode_info2 =
+        std::find_if(hidl_radio_mode_infos.begin(), hidl_radio_mode_infos.end(),
+                     [&legacy_mac_info2](
+                         const V1_2::IWifiChipEventCallback::RadioModeInfo& x) {
+                         return x.radioId == legacy_mac_info2.wlan_mac_id;
+                     });
+    ASSERT_NE(hidl_radio_mode_infos.end(), hidl_radio_mode_info2);
+    EXPECT_EQ(WifiBand::BAND_24GHZ, hidl_radio_mode_info2->bandInfo);
+    ASSERT_EQ(1u, hidl_radio_mode_info2->ifaceInfos.size());
+    auto hidl_iface_info2 = hidl_radio_mode_info2->ifaceInfos[0];
+    EXPECT_EQ(legacy_iface_info2.name, hidl_iface_info2.name);
+    EXPECT_EQ(static_cast<uint32_t>(legacy_iface_info2.channel),
+              hidl_iface_info2.channel);
+}
+
+TEST_F(HidlStructUtilTest, canConvertLegacyLinkLayerStatsToHidl) {
+    legacy_hal::LinkLayerStats legacy_stats{};
+    legacy_stats.radios.push_back(legacy_hal::LinkLayerRadioStats{});
+    legacy_stats.radios.push_back(legacy_hal::LinkLayerRadioStats{});
+    legacy_stats.iface.beacon_rx = rand();
+    legacy_stats.iface.rssi_mgmt = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].rx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].tx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].mpdu_lost = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].retries = rand();
+
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].rx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].tx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].mpdu_lost = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].retries = rand();
+
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].rx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].tx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].mpdu_lost = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].retries = rand();
+
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].rx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].tx_mpdu = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].mpdu_lost = rand();
+    legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].retries = rand();
+
+    for (auto& radio : legacy_stats.radios) {
+        radio.stats.on_time = rand();
+        radio.stats.tx_time = rand();
+        radio.stats.rx_time = rand();
+        radio.stats.on_time_scan = rand();
+        radio.stats.on_time_nbd = rand();
+        radio.stats.on_time_gscan = rand();
+        radio.stats.on_time_roam_scan = rand();
+        radio.stats.on_time_pno_scan = rand();
+        radio.stats.on_time_hs20 = rand();
+        for (int i = 0; i < 4; i++) {
+            radio.tx_time_per_levels.push_back(rand());
+        }
+
+        legacy_hal::wifi_channel_stat channel_stat1 = {
+            .channel = {legacy_hal::WIFI_CHAN_WIDTH_20, 2437, 2437, 0},
+            .cca_busy_time = 0x55,
+            .on_time = 0x1111};
+        legacy_hal::wifi_channel_stat channel_stat2 = {
+            .channel = {legacy_hal::WIFI_CHAN_WIDTH_20, 5180, 5180, 0},
+            .cca_busy_time = 0x66,
+            .on_time = 0x2222};
+        radio.channel_stats.push_back(channel_stat1);
+        radio.channel_stats.push_back(channel_stat2);
+    }
+
+    V1_3::StaLinkLayerStats converted{};
+    hidl_struct_util::convertLegacyLinkLayerStatsToHidl(legacy_stats,
+                                                        &converted);
+    EXPECT_EQ(legacy_stats.iface.beacon_rx, converted.iface.beaconRx);
+    EXPECT_EQ(legacy_stats.iface.rssi_mgmt, converted.iface.avgRssiMgmt);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].rx_mpdu,
+              converted.iface.wmeBePktStats.rxMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].tx_mpdu,
+              converted.iface.wmeBePktStats.txMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].mpdu_lost,
+              converted.iface.wmeBePktStats.lostMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BE].retries,
+              converted.iface.wmeBePktStats.retries);
+
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].rx_mpdu,
+              converted.iface.wmeBkPktStats.rxMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].tx_mpdu,
+              converted.iface.wmeBkPktStats.txMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].mpdu_lost,
+              converted.iface.wmeBkPktStats.lostMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_BK].retries,
+              converted.iface.wmeBkPktStats.retries);
+
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].rx_mpdu,
+              converted.iface.wmeViPktStats.rxMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].tx_mpdu,
+              converted.iface.wmeViPktStats.txMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].mpdu_lost,
+              converted.iface.wmeViPktStats.lostMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VI].retries,
+              converted.iface.wmeViPktStats.retries);
+
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].rx_mpdu,
+              converted.iface.wmeVoPktStats.rxMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].tx_mpdu,
+              converted.iface.wmeVoPktStats.txMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].mpdu_lost,
+              converted.iface.wmeVoPktStats.lostMpdu);
+    EXPECT_EQ(legacy_stats.iface.ac[legacy_hal::WIFI_AC_VO].retries,
+              converted.iface.wmeVoPktStats.retries);
+
+    EXPECT_EQ(legacy_stats.radios.size(), converted.radios.size());
+    for (size_t i = 0; i < legacy_stats.radios.size(); i++) {
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time,
+                  converted.radios[i].V1_0.onTimeInMs);
+        EXPECT_EQ(legacy_stats.radios[i].stats.tx_time,
+                  converted.radios[i].V1_0.txTimeInMs);
+        EXPECT_EQ(legacy_stats.radios[i].stats.rx_time,
+                  converted.radios[i].V1_0.rxTimeInMs);
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time_scan,
+                  converted.radios[i].V1_0.onTimeInMsForScan);
+        EXPECT_EQ(legacy_stats.radios[i].tx_time_per_levels.size(),
+                  converted.radios[i].V1_0.txTimeInMsPerLevel.size());
+        for (size_t j = 0; j < legacy_stats.radios[i].tx_time_per_levels.size();
+             j++) {
+            EXPECT_EQ(legacy_stats.radios[i].tx_time_per_levels[j],
+                      converted.radios[i].V1_0.txTimeInMsPerLevel[j]);
+        }
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time_nbd,
+                  converted.radios[i].onTimeInMsForNanScan);
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time_gscan,
+                  converted.radios[i].onTimeInMsForBgScan);
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time_roam_scan,
+                  converted.radios[i].onTimeInMsForRoamScan);
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time_pno_scan,
+                  converted.radios[i].onTimeInMsForPnoScan);
+        EXPECT_EQ(legacy_stats.radios[i].stats.on_time_hs20,
+                  converted.radios[i].onTimeInMsForHs20Scan);
+        EXPECT_EQ(legacy_stats.radios[i].channel_stats.size(),
+                  converted.radios[i].channelStats.size());
+        for (size_t k = 0; k < legacy_stats.radios[i].channel_stats.size();
+             k++) {
+            auto& legacy_channel_st = legacy_stats.radios[i].channel_stats[k];
+            EXPECT_EQ(WifiChannelWidthInMhz::WIDTH_20,
+                      converted.radios[i].channelStats[k].channel.width);
+            EXPECT_EQ(WifiChannelInMhz(legacy_channel_st.channel.center_freq),
+                      converted.radios[i].channelStats[k].channel.centerFreq);
+            EXPECT_EQ(WifiChannelInMhz(legacy_channel_st.channel.center_freq0),
+                      converted.radios[i].channelStats[k].channel.centerFreq0);
+            EXPECT_EQ(WifiChannelInMhz(legacy_channel_st.channel.center_freq1),
+                      converted.radios[i].channelStats[k].channel.centerFreq1);
+            EXPECT_EQ(legacy_channel_st.cca_busy_time,
+                      converted.radios[i].channelStats[k].ccaBusyTimeInMs);
+            EXPECT_EQ(legacy_channel_st.on_time,
+                      converted.radios[i].channelStats[k].onTimeInMs);
+        }
+    }
+}
+
+TEST_F(HidlStructUtilTest, CanConvertLegacyFeaturesToHidl) {
+    using HidlChipCaps = V1_3::IWifiChip::ChipCapabilityMask;
+
+    uint32_t hidle_caps;
+
+    uint32_t legacy_feature_set =
+            WIFI_FEATURE_D2D_RTT | WIFI_FEATURE_SET_LATENCY_MODE;
+    uint32_t legacy_logger_feature_set =
+            legacy_hal::WIFI_LOGGER_DRIVER_DUMP_SUPPORTED;
+
+    ASSERT_TRUE(hidl_struct_util::convertLegacyFeaturesToHidlChipCapabilities(
+        legacy_feature_set, legacy_logger_feature_set, &hidle_caps));
+
+    EXPECT_EQ(HidlChipCaps::DEBUG_RING_BUFFER_VENDOR_DATA |
+                  HidlChipCaps::DEBUG_HOST_WAKE_REASON_STATS |
+                  HidlChipCaps::DEBUG_ERROR_ALERTS | HidlChipCaps::D2D_RTT |
+                  HidlChipCaps::SET_LATENCY_MODE |
+                  HidlChipCaps::DEBUG_MEMORY_DRIVER_DUMP,
+              hidle_caps);
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.2/default/tests/main.cpp b/wifi/1.3/default/tests/main.cpp
similarity index 100%
rename from wifi/1.2/default/tests/main.cpp
rename to wifi/1.3/default/tests/main.cpp
diff --git a/wifi/1.3/default/tests/mock_wifi_feature_flags.cpp b/wifi/1.3/default/tests/mock_wifi_feature_flags.cpp
new file mode 100644
index 0000000..a393fdc
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_feature_flags.cpp
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gmock/gmock.h>
+
+#include "mock_wifi_feature_flags.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace feature_flags {
+
+MockWifiFeatureFlags::MockWifiFeatureFlags() {}
+
+}  // namespace feature_flags
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/mock_wifi_feature_flags.h b/wifi/1.3/default/tests/mock_wifi_feature_flags.h
new file mode 100644
index 0000000..ee12b54
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_feature_flags.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MOCK_WIFI_FEATURE_FLAGS_H_
+#define MOCK_WIFI_FEATURE_FLAGS_H_
+
+#include <gmock/gmock.h>
+#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
+
+#include "wifi_feature_flags.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace feature_flags {
+
+class MockWifiFeatureFlags : public WifiFeatureFlags {
+   public:
+    MockWifiFeatureFlags();
+
+    MOCK_METHOD0(getChipModes, std::vector<V1_0::IWifiChip::ChipMode>());
+    MOCK_METHOD0(isApMacRandomizationDisabled, bool());
+};
+
+}  // namespace feature_flags
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // MOCK_WIFI_FEATURE_FLAGS_H_
diff --git a/wifi/1.3/default/tests/mock_wifi_iface_util.cpp b/wifi/1.3/default/tests/mock_wifi_iface_util.cpp
new file mode 100644
index 0000000..706cb6a
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_iface_util.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <gmock/gmock.h>
+
+#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
+#include "mock_wifi_iface_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace iface_util {
+
+MockWifiIfaceUtil::MockWifiIfaceUtil() : WifiIfaceUtil() {}
+}  // namespace iface_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/mock_wifi_iface_util.h b/wifi/1.3/default/tests/mock_wifi_iface_util.h
new file mode 100644
index 0000000..87ab5db
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_iface_util.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MOCK_WIFI_IFACE_UTIL_H_
+#define MOCK_WIFI_IFACE_UTIL_H_
+
+#include <gmock/gmock.h>
+
+#include "wifi_iface_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace iface_util {
+
+class MockWifiIfaceUtil : public WifiIfaceUtil {
+   public:
+    MockWifiIfaceUtil();
+    MOCK_METHOD1(getFactoryMacAddress,
+                 std::array<uint8_t, 6>(const std::string&));
+    MOCK_METHOD2(setMacAddress,
+                 bool(const std::string&, const std::array<uint8_t, 6>&));
+    MOCK_METHOD0(getOrCreateRandomMacAddress, std::array<uint8_t, 6>());
+};
+}  // namespace iface_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // MOCK_WIFI_IFACE_UTIL_H_
diff --git a/wifi/1.3/default/tests/mock_wifi_legacy_hal.cpp b/wifi/1.3/default/tests/mock_wifi_legacy_hal.cpp
new file mode 100644
index 0000000..4cd279d
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_legacy_hal.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <gmock/gmock.h>
+
+#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
+#include "mock_wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace legacy_hal {
+
+MockWifiLegacyHal::MockWifiLegacyHal() : WifiLegacyHal() {}
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/mock_wifi_legacy_hal.h b/wifi/1.3/default/tests/mock_wifi_legacy_hal.h
new file mode 100644
index 0000000..deb3a5a
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_legacy_hal.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MOCK_WIFI_LEGACY_HAL_H_
+#define MOCK_WIFI_LEGACY_HAL_H_
+
+#include <gmock/gmock.h>
+
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace legacy_hal {
+
+class MockWifiLegacyHal : public WifiLegacyHal {
+   public:
+    MockWifiLegacyHal();
+    MOCK_METHOD0(initialize, wifi_error());
+    MOCK_METHOD0(start, wifi_error());
+    MOCK_METHOD2(stop, wifi_error(std::unique_lock<std::recursive_mutex>*,
+                                  const std::function<void()>&));
+    MOCK_METHOD2(setDfsFlag, wifi_error(const std::string&, bool));
+    MOCK_METHOD2(registerRadioModeChangeCallbackHandler,
+                 wifi_error(const std::string&,
+                            const on_radio_mode_change_callback&));
+    MOCK_METHOD2(nanRegisterCallbackHandlers,
+                 wifi_error(const std::string&, const NanCallbackHandlers&));
+    MOCK_METHOD2(nanDisableRequest,
+                 wifi_error(const std::string&, transaction_id));
+    MOCK_METHOD3(nanDataInterfaceDelete,
+                 wifi_error(const std::string&, transaction_id,
+                            const std::string&));
+};
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // MOCK_WIFI_LEGACY_HAL_H_
diff --git a/wifi/1.3/default/tests/mock_wifi_mode_controller.cpp b/wifi/1.3/default/tests/mock_wifi_mode_controller.cpp
new file mode 100644
index 0000000..2b0ea36
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_mode_controller.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <gmock/gmock.h>
+
+#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
+#include "mock_wifi_mode_controller.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace mode_controller {
+
+MockWifiModeController::MockWifiModeController() : WifiModeController() {}
+}  // namespace mode_controller
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/mock_wifi_mode_controller.h b/wifi/1.3/default/tests/mock_wifi_mode_controller.h
new file mode 100644
index 0000000..c204059
--- /dev/null
+++ b/wifi/1.3/default/tests/mock_wifi_mode_controller.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MOCK_WIFI_MODE_CONTROLLER_H_
+#define MOCK_WIFI_MODE_CONTROLLER_H_
+
+#include <gmock/gmock.h>
+
+#include "wifi_mode_controller.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace mode_controller {
+
+class MockWifiModeController : public WifiModeController {
+   public:
+    MockWifiModeController();
+    MOCK_METHOD0(initialize, bool());
+    MOCK_METHOD1(changeFirmwareMode, bool(IfaceType));
+    MOCK_METHOD1(isFirmwareModeChangeNeeded, bool(IfaceType));
+    MOCK_METHOD0(deinitialize, bool());
+};
+}  // namespace mode_controller
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // MOCK_WIFI_MODE_CONTROLLER_H_
diff --git a/wifi/1.3/default/tests/ringbuffer_unit_tests.cpp b/wifi/1.3/default/tests/ringbuffer_unit_tests.cpp
new file mode 100644
index 0000000..0cf1e4f
--- /dev/null
+++ b/wifi/1.3/default/tests/ringbuffer_unit_tests.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2018, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gmock/gmock.h>
+
+#include "ringbuffer.h"
+
+using testing::Return;
+using testing::Test;
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+class RingbufferTest : public Test {
+   public:
+    const uint32_t maxBufferSize_ = 10;
+    Ringbuffer buffer_{maxBufferSize_};
+};
+
+TEST_F(RingbufferTest, CreateEmptyBuffer) {
+    ASSERT_TRUE(buffer_.getData().empty());
+}
+
+TEST_F(RingbufferTest, CanUseFullBufferCapacity) {
+    const std::vector<uint8_t> input(maxBufferSize_ / 2, '0');
+    const std::vector<uint8_t> input2(maxBufferSize_ / 2, '1');
+    buffer_.append(input);
+    buffer_.append(input2);
+    ASSERT_EQ(2u, buffer_.getData().size());
+    EXPECT_EQ(input, buffer_.getData().front());
+    EXPECT_EQ(input2, buffer_.getData().back());
+}
+
+TEST_F(RingbufferTest, OldDataIsRemovedOnOverflow) {
+    const std::vector<uint8_t> input(maxBufferSize_ / 2, '0');
+    const std::vector<uint8_t> input2(maxBufferSize_ / 2, '1');
+    const std::vector<uint8_t> input3 = {'G'};
+    buffer_.append(input);
+    buffer_.append(input2);
+    buffer_.append(input3);
+    ASSERT_EQ(2u, buffer_.getData().size());
+    EXPECT_EQ(input2, buffer_.getData().front());
+    EXPECT_EQ(input3, buffer_.getData().back());
+}
+
+TEST_F(RingbufferTest, MultipleOldDataIsRemovedOnOverflow) {
+    const std::vector<uint8_t> input(maxBufferSize_ / 2, '0');
+    const std::vector<uint8_t> input2(maxBufferSize_ / 2, '1');
+    const std::vector<uint8_t> input3(maxBufferSize_, '2');
+    buffer_.append(input);
+    buffer_.append(input2);
+    buffer_.append(input3);
+    ASSERT_EQ(1u, buffer_.getData().size());
+    EXPECT_EQ(input3, buffer_.getData().front());
+}
+
+TEST_F(RingbufferTest, AppendingEmptyBufferDoesNotAddGarbage) {
+    const std::vector<uint8_t> input = {};
+    buffer_.append(input);
+    ASSERT_TRUE(buffer_.getData().empty());
+}
+
+TEST_F(RingbufferTest, OversizedAppendIsDropped) {
+    const std::vector<uint8_t> input(maxBufferSize_ + 1, '0');
+    buffer_.append(input);
+    ASSERT_TRUE(buffer_.getData().empty());
+}
+
+TEST_F(RingbufferTest, OversizedAppendDoesNotDropExistingData) {
+    const std::vector<uint8_t> input(maxBufferSize_, '0');
+    const std::vector<uint8_t> input2(maxBufferSize_ + 1, '1');
+    buffer_.append(input);
+    buffer_.append(input2);
+    ASSERT_EQ(1u, buffer_.getData().size());
+    EXPECT_EQ(input, buffer_.getData().front());
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/runtests.sh b/wifi/1.3/default/tests/runtests.sh
new file mode 100755
index 0000000..eefc697
--- /dev/null
+++ b/wifi/1.3/default/tests/runtests.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+# Copyright(C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0(the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http:// www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if [ -z $ANDROID_BUILD_TOP ]; then
+  echo "You need to source and lunch before you can use this script"
+  exit 1
+fi
+set -e
+
+$ANDROID_BUILD_TOP/build/soong/soong_ui.bash --make-mode android.hardware.wifi@1.0-service-tests
+adb root
+adb sync data
+adb shell /data/nativetest64/android.hardware.wifi@1.0-service-tests/android.hardware.wifi@1.0-service-tests
diff --git a/wifi/1.3/default/tests/wifi_ap_iface_unit_tests.cpp b/wifi/1.3/default/tests/wifi_ap_iface_unit_tests.cpp
new file mode 100644
index 0000000..28e028b
--- /dev/null
+++ b/wifi/1.3/default/tests/wifi_ap_iface_unit_tests.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <cutils/properties.h>
+#include <gmock/gmock.h>
+
+#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
+#include "wifi_ap_iface.h"
+
+#include "mock_wifi_feature_flags.h"
+#include "mock_wifi_iface_util.h"
+#include "mock_wifi_legacy_hal.h"
+
+using testing::NiceMock;
+using testing::Return;
+using testing::Test;
+
+namespace {
+constexpr char kIfaceName[] = "mockWlan0";
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+class WifiApIfaceTest : public Test {
+   protected:
+    std::shared_ptr<NiceMock<legacy_hal::MockWifiLegacyHal>> legacy_hal_{
+        new NiceMock<legacy_hal::MockWifiLegacyHal>};
+    std::shared_ptr<NiceMock<iface_util::MockWifiIfaceUtil>> iface_util_{
+        new NiceMock<iface_util::MockWifiIfaceUtil>};
+    std::shared_ptr<NiceMock<feature_flags::MockWifiFeatureFlags>>
+        feature_flags_{new NiceMock<feature_flags::MockWifiFeatureFlags>};
+};
+
+TEST_F(WifiApIfaceTest, SetRandomMacAddressIfFeatureEnabled) {
+    EXPECT_CALL(*feature_flags_, isApMacRandomizationDisabled())
+        .WillOnce(testing::Return(false));
+    EXPECT_CALL(*iface_util_, getOrCreateRandomMacAddress())
+        .WillOnce(testing::Return(std::array<uint8_t, 6>{0, 0, 0, 0, 0, 0}));
+    EXPECT_CALL(*iface_util_, setMacAddress(testing::_, testing::_))
+        .WillOnce(testing::Return(true));
+    sp<WifiApIface> ap_iface =
+        new WifiApIface(kIfaceName, legacy_hal_, iface_util_, feature_flags_);
+}
+
+TEST_F(WifiApIfaceTest, DontSetRandomMacAddressIfFeatureDisabled) {
+    EXPECT_CALL(*feature_flags_, isApMacRandomizationDisabled())
+        .WillOnce(testing::Return(true));
+    EXPECT_CALL(*iface_util_, getOrCreateRandomMacAddress()).Times(0);
+    EXPECT_CALL(*iface_util_, setMacAddress(testing::_, testing::_)).Times(0);
+    sp<WifiApIface> ap_iface =
+        new WifiApIface(kIfaceName, legacy_hal_, iface_util_, feature_flags_);
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/wifi_chip_unit_tests.cpp b/wifi/1.3/default/tests/wifi_chip_unit_tests.cpp
new file mode 100644
index 0000000..134563c
--- /dev/null
+++ b/wifi/1.3/default/tests/wifi_chip_unit_tests.cpp
@@ -0,0 +1,731 @@
+/*
+ * Copyright (C) 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <cutils/properties.h>
+#include <gmock/gmock.h>
+
+#undef NAN  // This is weird, NAN is defined in bionic/libc/include/math.h:38
+#include "wifi_chip.h"
+
+#include "mock_wifi_feature_flags.h"
+#include "mock_wifi_iface_util.h"
+#include "mock_wifi_legacy_hal.h"
+#include "mock_wifi_mode_controller.h"
+
+using testing::NiceMock;
+using testing::Return;
+using testing::Test;
+
+namespace {
+using android::hardware::wifi::V1_0::ChipId;
+
+constexpr ChipId kFakeChipId = 5;
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+class WifiChipTest : public Test {
+   protected:
+    void setupV1IfaceCombination() {
+        // clang-format off
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinationsSta = {
+            {{{{IfaceType::STA}, 1}, {{IfaceType::P2P}, 1}}}
+        };
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinationsAp = {
+            {{{{IfaceType::AP}, 1}}}
+        };
+        const std::vector<V1_0::IWifiChip::ChipMode> modes = {
+            {feature_flags::chip_mode_ids::kV1Sta, combinationsSta},
+            {feature_flags::chip_mode_ids::kV1Ap, combinationsAp}
+        };
+        // clang-format on
+        EXPECT_CALL(*feature_flags_, getChipModes())
+            .WillRepeatedly(testing::Return(modes));
+    }
+
+    void setupV1_AwareIfaceCombination() {
+        // clang-format off
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinationsSta = {
+            {{{{IfaceType::STA}, 1}, {{IfaceType::P2P, IfaceType::NAN}, 1}}}
+        };
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinationsAp = {
+            {{{{IfaceType::AP}, 1}}}
+        };
+        const std::vector<V1_0::IWifiChip::ChipMode> modes = {
+            {feature_flags::chip_mode_ids::kV1Sta, combinationsSta},
+            {feature_flags::chip_mode_ids::kV1Ap, combinationsAp}
+        };
+        // clang-format on
+        EXPECT_CALL(*feature_flags_, getChipModes())
+            .WillRepeatedly(testing::Return(modes));
+    }
+
+    void setupV1_AwareDisabledApIfaceCombination() {
+        // clang-format off
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinationsSta = {
+            {{{{IfaceType::STA}, 1}, {{IfaceType::P2P, IfaceType::NAN}, 1}}}
+        };
+        const std::vector<V1_0::IWifiChip::ChipMode> modes = {
+            {feature_flags::chip_mode_ids::kV1Sta, combinationsSta}
+        };
+        // clang-format on
+        EXPECT_CALL(*feature_flags_, getChipModes())
+            .WillRepeatedly(testing::Return(modes));
+    }
+
+    void setupV2_AwareIfaceCombination() {
+        // clang-format off
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinations = {
+            {{{{IfaceType::STA}, 1}, {{IfaceType::AP}, 1}}},
+            {{{{IfaceType::STA}, 1}, {{IfaceType::P2P, IfaceType::NAN}, 1}}}
+        };
+        const std::vector<V1_0::IWifiChip::ChipMode> modes = {
+            {feature_flags::chip_mode_ids::kV3, combinations}
+        };
+        // clang-format on
+        EXPECT_CALL(*feature_flags_, getChipModes())
+            .WillRepeatedly(testing::Return(modes));
+    }
+
+    void setupV2_AwareDisabledApIfaceCombination() {
+        // clang-format off
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinations = {
+            {{{{IfaceType::STA}, 1}, {{IfaceType::P2P, IfaceType::NAN}, 1}}}
+        };
+        const std::vector<V1_0::IWifiChip::ChipMode> modes = {
+            {feature_flags::chip_mode_ids::kV3, combinations}
+        };
+        // clang-format on
+        EXPECT_CALL(*feature_flags_, getChipModes())
+            .WillRepeatedly(testing::Return(modes));
+    }
+
+    void setup_MultiIfaceCombination() {
+        // clang-format off
+        const hidl_vec<V1_0::IWifiChip::ChipIfaceCombination> combinations = {
+            {{{{IfaceType::STA}, 3}}}
+        };
+        const std::vector<V1_0::IWifiChip::ChipMode> modes = {
+            {feature_flags::chip_mode_ids::kV3, combinations}
+        };
+        // clang-format on
+        EXPECT_CALL(*feature_flags_, getChipModes())
+            .WillRepeatedly(testing::Return(modes));
+    }
+
+    void assertNumberOfModes(uint32_t num_modes) {
+        chip_->getAvailableModes(
+            [num_modes](const WifiStatus& status,
+                        const std::vector<WifiChip::ChipMode>& modes) {
+                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+                // V2_Aware has 1 mode of operation.
+                ASSERT_EQ(num_modes, modes.size());
+            });
+    }
+
+    void findModeAndConfigureForIfaceType(const IfaceType& type) {
+        // This should be aligned with kInvalidModeId in wifi_chip.cpp.
+        ChipModeId mode_id = UINT32_MAX;
+        chip_->getAvailableModes(
+            [&mode_id, &type](const WifiStatus& status,
+                              const std::vector<WifiChip::ChipMode>& modes) {
+                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+                for (const auto& mode : modes) {
+                    for (const auto& combination : mode.availableCombinations) {
+                        for (const auto& limit : combination.limits) {
+                            if (limit.types.end() !=
+                                std::find(limit.types.begin(),
+                                          limit.types.end(), type)) {
+                                mode_id = mode.id;
+                            }
+                        }
+                    }
+                }
+            });
+        ASSERT_NE(UINT32_MAX, mode_id);
+
+        chip_->configureChip(mode_id, [](const WifiStatus& status) {
+            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+        });
+    }
+
+    // Returns an empty string on error.
+    std::string createIface(const IfaceType& type) {
+        std::string iface_name;
+        if (type == IfaceType::AP) {
+            chip_->createApIface([&iface_name](const WifiStatus& status,
+                                               const sp<IWifiApIface>& iface) {
+                if (WifiStatusCode::SUCCESS == status.code) {
+                    ASSERT_NE(iface.get(), nullptr);
+                    iface->getName([&iface_name](const WifiStatus& status,
+                                                 const hidl_string& name) {
+                        ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+                        iface_name = name.c_str();
+                    });
+                }
+            });
+        } else if (type == IfaceType::NAN) {
+            chip_->createNanIface(
+                [&iface_name](
+                    const WifiStatus& status,
+                    const sp<android::hardware::wifi::V1_0::IWifiNanIface>&
+                        iface) {
+                    if (WifiStatusCode::SUCCESS == status.code) {
+                        ASSERT_NE(iface.get(), nullptr);
+                        iface->getName([&iface_name](const WifiStatus& status,
+                                                     const hidl_string& name) {
+                            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+                            iface_name = name.c_str();
+                        });
+                    }
+                });
+        } else if (type == IfaceType::P2P) {
+            chip_->createP2pIface(
+                [&iface_name](const WifiStatus& status,
+                              const sp<IWifiP2pIface>& iface) {
+                    if (WifiStatusCode::SUCCESS == status.code) {
+                        ASSERT_NE(iface.get(), nullptr);
+                        iface->getName([&iface_name](const WifiStatus& status,
+                                                     const hidl_string& name) {
+                            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+                            iface_name = name.c_str();
+                        });
+                    }
+                });
+        } else if (type == IfaceType::STA) {
+            chip_->createStaIface(
+                [&iface_name](const WifiStatus& status,
+                              const sp<V1_0::IWifiStaIface>& iface) {
+                    if (WifiStatusCode::SUCCESS == status.code) {
+                        ASSERT_NE(iface.get(), nullptr);
+                        iface->getName([&iface_name](const WifiStatus& status,
+                                                     const hidl_string& name) {
+                            ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+                            iface_name = name.c_str();
+                        });
+                    }
+                });
+        }
+        return iface_name;
+    }
+
+    void removeIface(const IfaceType& type, const std::string& iface_name) {
+        if (type == IfaceType::AP) {
+            chip_->removeApIface(iface_name, [](const WifiStatus& status) {
+                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+            });
+        } else if (type == IfaceType::NAN) {
+            chip_->removeNanIface(iface_name, [](const WifiStatus& status) {
+                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+            });
+        } else if (type == IfaceType::P2P) {
+            chip_->removeP2pIface(iface_name, [](const WifiStatus& status) {
+                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+            });
+        } else if (type == IfaceType::STA) {
+            chip_->removeStaIface(iface_name, [](const WifiStatus& status) {
+                ASSERT_EQ(WifiStatusCode::SUCCESS, status.code);
+            });
+        }
+    }
+
+    bool createRttController() {
+        bool success = false;
+        chip_->createRttController(
+            NULL, [&success](const WifiStatus& status,
+                             const sp<IWifiRttController>& rtt) {
+                if (WifiStatusCode::SUCCESS == status.code) {
+                    ASSERT_NE(rtt.get(), nullptr);
+                    success = true;
+                }
+            });
+        return success;
+    }
+
+   public:
+    void SetUp() override {
+        chip_ = new WifiChip(chip_id_, legacy_hal_, mode_controller_,
+                             iface_util_, feature_flags_);
+
+        EXPECT_CALL(*mode_controller_, changeFirmwareMode(testing::_))
+            .WillRepeatedly(testing::Return(true));
+        EXPECT_CALL(*legacy_hal_, start())
+            .WillRepeatedly(testing::Return(legacy_hal::WIFI_SUCCESS));
+    }
+
+   private:
+    sp<WifiChip> chip_;
+    ChipId chip_id_ = kFakeChipId;
+    std::shared_ptr<NiceMock<legacy_hal::MockWifiLegacyHal>> legacy_hal_{
+        new NiceMock<legacy_hal::MockWifiLegacyHal>};
+    std::shared_ptr<NiceMock<mode_controller::MockWifiModeController>>
+        mode_controller_{new NiceMock<mode_controller::MockWifiModeController>};
+    std::shared_ptr<NiceMock<iface_util::MockWifiIfaceUtil>> iface_util_{
+        new NiceMock<iface_util::MockWifiIfaceUtil>};
+    std::shared_ptr<NiceMock<feature_flags::MockWifiFeatureFlags>>
+        feature_flags_{new NiceMock<feature_flags::MockWifiFeatureFlags>};
+};
+
+////////// V1 Iface Combinations ////////////
+// Mode 1 - STA + P2P
+// Mode 2 - AP
+class WifiChipV1IfaceCombinationTest : public WifiChipTest {
+   public:
+    void SetUp() override {
+        setupV1IfaceCombination();
+        WifiChipTest::SetUp();
+        // V1 has 2 modes of operation.
+        assertNumberOfModes(2u);
+    }
+};
+
+TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateSta_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateP2p_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateNan_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateAp_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_TRUE(createIface(IfaceType::AP).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, StaMode_CreateStaP2p_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateAp_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateSta_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateP2p_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, ApMode_CreateNan_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+}
+
+////////// V1 + Aware Iface Combinations ////////////
+// Mode 1 - STA + P2P/NAN
+// Mode 2 - AP
+class WifiChipV1_AwareIfaceCombinationTest : public WifiChipTest {
+   public:
+    void SetUp() override {
+        setupV1_AwareIfaceCombination();
+        WifiChipTest::SetUp();
+        // V1_Aware has 2 modes of operation.
+        assertNumberOfModes(2u);
+    }
+};
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateSta_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateP2p_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateNan_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, StaMode_CreateAp_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_TRUE(createIface(IfaceType::AP).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest,
+       StaMode_CreateStaP2p_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest,
+       StaMode_CreateStaNan_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest,
+       StaMode_CreateStaP2PNan_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest,
+       StaMode_CreateStaNan_AfterP2pRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    const auto p2p_iface_name = createIface(IfaceType::P2P);
+    ASSERT_FALSE(p2p_iface_name.empty());
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+
+    // After removing P2P iface, NAN iface creation should succeed.
+    removeIface(IfaceType::P2P, p2p_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest,
+       StaMode_CreateStaP2p_AfterNanRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    const auto nan_iface_name = createIface(IfaceType::NAN);
+    ASSERT_FALSE(nan_iface_name.empty());
+    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
+
+    // After removing NAN iface, P2P iface creation should succeed.
+    removeIface(IfaceType::NAN, nan_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateAp_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateSta_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateP2p_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV1_AwareIfaceCombinationTest, ApMode_CreateNan_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, RttControllerFlowStaModeNoSta) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_TRUE(createRttController());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, RttControllerFlowStaModeWithSta) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_TRUE(createRttController());
+}
+
+TEST_F(WifiChipV1IfaceCombinationTest, RttControllerFlowApToSta) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    const auto ap_iface_name = createIface(IfaceType::AP);
+    ASSERT_FALSE(ap_iface_name.empty());
+    ASSERT_FALSE(createRttController());
+
+    removeIface(IfaceType::AP, ap_iface_name);
+
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_TRUE(createRttController());
+}
+
+////////// V2 + Aware Iface Combinations ////////////
+// Mode 1 - STA + STA/AP
+//        - STA + P2P/NAN
+class WifiChipV2_AwareIfaceCombinationTest : public WifiChipTest {
+   public:
+    void SetUp() override {
+        setupV2_AwareIfaceCombination();
+        WifiChipTest::SetUp();
+        // V2_Aware has 1 mode of operation.
+        assertNumberOfModes(1u);
+    }
+};
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateSta_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateP2p_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateNan_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateAp_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaSta_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaAp_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest,
+       CreateSta_AfterStaApRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    const auto sta_iface_name = createIface(IfaceType::STA);
+    ASSERT_FALSE(sta_iface_name.empty());
+    const auto ap_iface_name = createIface(IfaceType::AP);
+    ASSERT_FALSE(ap_iface_name.empty());
+
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+
+    // After removing AP & STA iface, STA iface creation should succeed.
+    removeIface(IfaceType::STA, sta_iface_name);
+    removeIface(IfaceType::AP, ap_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaP2p_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaNan_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateStaP2PNan_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest,
+       CreateStaNan_AfterP2pRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    const auto p2p_iface_name = createIface(IfaceType::P2P);
+    ASSERT_FALSE(p2p_iface_name.empty());
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+
+    // After removing P2P iface, NAN iface creation should succeed.
+    removeIface(IfaceType::P2P, p2p_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest,
+       CreateStaP2p_AfterNanRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    const auto nan_iface_name = createIface(IfaceType::NAN);
+    ASSERT_FALSE(nan_iface_name.empty());
+    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
+
+    // After removing NAN iface, P2P iface creation should succeed.
+    removeIface(IfaceType::NAN, nan_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateApNan_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, CreateApP2p_ShouldFail) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest,
+       StaMode_CreateStaNan_AfterP2pRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    const auto p2p_iface_name = createIface(IfaceType::P2P);
+    ASSERT_FALSE(p2p_iface_name.empty());
+    ASSERT_TRUE(createIface(IfaceType::NAN).empty());
+
+    // After removing P2P iface, NAN iface creation should succeed.
+    removeIface(IfaceType::P2P, p2p_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::NAN).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest,
+       StaMode_CreateStaP2p_AfterNanRemove_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    const auto nan_iface_name = createIface(IfaceType::NAN);
+    ASSERT_FALSE(nan_iface_name.empty());
+    ASSERT_TRUE(createIface(IfaceType::P2P).empty());
+
+    // After removing NAN iface, P2P iface creation should succeed.
+    removeIface(IfaceType::NAN, nan_iface_name);
+    ASSERT_FALSE(createIface(IfaceType::P2P).empty());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest,
+       CreateStaAp_EnsureDifferentIfaceNames) {
+    findModeAndConfigureForIfaceType(IfaceType::AP);
+    const auto sta_iface_name = createIface(IfaceType::STA);
+    const auto ap_iface_name = createIface(IfaceType::AP);
+    ASSERT_FALSE(sta_iface_name.empty());
+    ASSERT_FALSE(ap_iface_name.empty());
+    ASSERT_NE(sta_iface_name, ap_iface_name);
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, RttControllerFlowStaModeNoSta) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_TRUE(createRttController());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, RttControllerFlowStaModeWithSta) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_TRUE(createRttController());
+}
+
+TEST_F(WifiChipV2_AwareIfaceCombinationTest, RttControllerFlow) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::AP).empty());
+    ASSERT_TRUE(createRttController());
+}
+
+////////// V1 Iface Combinations when AP creation is disabled //////////
+class WifiChipV1_AwareDisabledApIfaceCombinationTest : public WifiChipTest {
+   public:
+    void SetUp() override {
+        setupV1_AwareDisabledApIfaceCombination();
+        WifiChipTest::SetUp();
+    }
+};
+
+TEST_F(WifiChipV1_AwareDisabledApIfaceCombinationTest,
+       StaMode_CreateSta_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_TRUE(createIface(IfaceType::AP).empty());
+}
+
+////////// V2 Iface Combinations when AP creation is disabled //////////
+class WifiChipV2_AwareDisabledApIfaceCombinationTest : public WifiChipTest {
+   public:
+    void SetUp() override {
+        setupV2_AwareDisabledApIfaceCombination();
+        WifiChipTest::SetUp();
+    }
+};
+
+TEST_F(WifiChipV2_AwareDisabledApIfaceCombinationTest,
+       CreateSta_ShouldSucceed) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_TRUE(createIface(IfaceType::AP).empty());
+}
+
+class WifiChip_MultiIfaceTest : public WifiChipTest {
+   public:
+    void SetUp() override {
+        setup_MultiIfaceCombination();
+        WifiChipTest::SetUp();
+    }
+};
+
+TEST_F(WifiChip_MultiIfaceTest, Create3Sta) {
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_FALSE(createIface(IfaceType::STA).empty());
+    ASSERT_TRUE(createIface(IfaceType::STA).empty());
+}
+
+TEST_F(WifiChip_MultiIfaceTest, CreateStaWithDefaultNames) {
+    property_set("wifi.interface.0", "");
+    property_set("wifi.interface.1", "");
+    property_set("wifi.interface.2", "");
+    property_set("wifi.interface", "");
+    property_set("wifi.concurrent.interface", "");
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_EQ(createIface(IfaceType::STA), "wlan0");
+    ASSERT_EQ(createIface(IfaceType::STA), "wlan1");
+    ASSERT_EQ(createIface(IfaceType::STA), "wlan2");
+}
+
+TEST_F(WifiChip_MultiIfaceTest, CreateStaWithCustomNames) {
+    property_set("wifi.interface.0", "test0");
+    property_set("wifi.interface.1", "test1");
+    property_set("wifi.interface.2", "test2");
+    property_set("wifi.interface", "bad0");
+    property_set("wifi.concurrent.interface", "bad1");
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_EQ(createIface(IfaceType::STA), "test0");
+    ASSERT_EQ(createIface(IfaceType::STA), "test1");
+    ASSERT_EQ(createIface(IfaceType::STA), "test2");
+}
+
+TEST_F(WifiChip_MultiIfaceTest, CreateStaWithCustomAltNames) {
+    property_set("wifi.interface.0", "");
+    property_set("wifi.interface.1", "");
+    property_set("wifi.interface.2", "");
+    property_set("wifi.interface", "testA0");
+    property_set("wifi.concurrent.interface", "testA1");
+    findModeAndConfigureForIfaceType(IfaceType::STA);
+    ASSERT_EQ(createIface(IfaceType::STA), "testA0");
+    ASSERT_EQ(createIface(IfaceType::STA), "testA1");
+    ASSERT_EQ(createIface(IfaceType::STA), "wlan2");
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/tests/wifi_iface_util_unit_tests.cpp b/wifi/1.3/default/tests/wifi_iface_util_unit_tests.cpp
new file mode 100644
index 0000000..e5758fa
--- /dev/null
+++ b/wifi/1.3/default/tests/wifi_iface_util_unit_tests.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <gmock/gmock.h>
+
+#undef NAN
+#include "wifi_iface_util.h"
+
+using testing::Test;
+
+namespace {
+constexpr uint8_t kValidUnicastLocallyAssignedMacAddressMask = 0x02;
+
+bool isValidUnicastLocallyAssignedMacAddress(
+    const std::array<uint8_t, 6>& mac_address) {
+    uint8_t first_byte = mac_address[0];
+    return (first_byte & 0x3) == kValidUnicastLocallyAssignedMacAddressMask;
+}
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+class WifiIfaceUtilTest : public Test {
+   protected:
+    iface_util::WifiIfaceUtil iface_util_;
+};
+
+TEST_F(WifiIfaceUtilTest, GetOrCreateRandomMacAddress) {
+    auto mac_address = iface_util_.getOrCreateRandomMacAddress();
+    ASSERT_TRUE(isValidUnicastLocallyAssignedMacAddress(mac_address));
+
+    // All further calls should return the same MAC address.
+    ASSERT_EQ(mac_address, iface_util_.getOrCreateRandomMacAddress());
+    ASSERT_EQ(mac_address, iface_util_.getOrCreateRandomMacAddress());
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi.cpp b/wifi/1.3/default/wifi.cpp
new file mode 100644
index 0000000..1f64085
--- /dev/null
+++ b/wifi/1.3/default/wifi.cpp
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "wifi.h"
+#include "wifi_status_util.h"
+
+namespace {
+// Chip ID to use for the only supported chip.
+static constexpr android::hardware::wifi::V1_0::ChipId kChipId = 0;
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+using hidl_return_util::validateAndCallWithLock;
+
+Wifi::Wifi(
+    const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+    const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
+    const std::shared_ptr<iface_util::WifiIfaceUtil> iface_util,
+    const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags)
+    : legacy_hal_(legacy_hal),
+      mode_controller_(mode_controller),
+      iface_util_(iface_util),
+      feature_flags_(feature_flags),
+      run_state_(RunState::STOPPED) {}
+
+bool Wifi::isValid() {
+    // This object is always valid.
+    return true;
+}
+
+Return<void> Wifi::registerEventCallback(
+    const sp<IWifiEventCallback>& event_callback,
+    registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
+                           &Wifi::registerEventCallbackInternal, hidl_status_cb,
+                           event_callback);
+}
+
+Return<bool> Wifi::isStarted() { return run_state_ != RunState::STOPPED; }
+
+Return<void> Wifi::start(start_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
+                           &Wifi::startInternal, hidl_status_cb);
+}
+
+Return<void> Wifi::stop(stop_cb hidl_status_cb) {
+    return validateAndCallWithLock(this, WifiStatusCode::ERROR_UNKNOWN,
+                                   &Wifi::stopInternal, hidl_status_cb);
+}
+
+Return<void> Wifi::getChipIds(getChipIds_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
+                           &Wifi::getChipIdsInternal, hidl_status_cb);
+}
+
+Return<void> Wifi::getChip(ChipId chip_id, getChip_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
+                           &Wifi::getChipInternal, hidl_status_cb, chip_id);
+}
+
+Return<void> Wifi::debug(const hidl_handle& handle,
+                         const hidl_vec<hidl_string>&) {
+    LOG(INFO) << "-----------Debug is called----------------";
+    if (!chip_.get()) {
+        return Void();
+    }
+    return chip_->debug(handle, {});
+}
+
+WifiStatus Wifi::registerEventCallbackInternal(
+    const sp<IWifiEventCallback>& event_callback) {
+    if (!event_cb_handler_.addCallback(event_callback)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus Wifi::startInternal() {
+    if (run_state_ == RunState::STARTED) {
+        return createWifiStatus(WifiStatusCode::SUCCESS);
+    } else if (run_state_ == RunState::STOPPING) {
+        return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
+                                "HAL is stopping");
+    }
+    WifiStatus wifi_status = initializeModeControllerAndLegacyHal();
+    if (wifi_status.code == WifiStatusCode::SUCCESS) {
+        // Create the chip instance once the HAL is started.
+        chip_ = new WifiChip(kChipId, legacy_hal_, mode_controller_,
+                             iface_util_, feature_flags_);
+        run_state_ = RunState::STARTED;
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onStart().isOk()) {
+                LOG(ERROR) << "Failed to invoke onStart callback";
+            };
+        }
+        LOG(INFO) << "Wifi HAL started";
+    } else {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onFailure(wifi_status).isOk()) {
+                LOG(ERROR) << "Failed to invoke onFailure callback";
+            }
+        }
+        LOG(ERROR) << "Wifi HAL start failed";
+    }
+    return wifi_status;
+}
+
+WifiStatus Wifi::stopInternal(
+    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
+    if (run_state_ == RunState::STOPPED) {
+        return createWifiStatus(WifiStatusCode::SUCCESS);
+    } else if (run_state_ == RunState::STOPPING) {
+        return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
+                                "HAL is stopping");
+    }
+    // Clear the chip object and its child objects since the HAL is now
+    // stopped.
+    if (chip_.get()) {
+        chip_->invalidate();
+        chip_.clear();
+    }
+    WifiStatus wifi_status = stopLegacyHalAndDeinitializeModeController(lock);
+    if (wifi_status.code == WifiStatusCode::SUCCESS) {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onStop().isOk()) {
+                LOG(ERROR) << "Failed to invoke onStop callback";
+            };
+        }
+        LOG(INFO) << "Wifi HAL stopped";
+    } else {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onFailure(wifi_status).isOk()) {
+                LOG(ERROR) << "Failed to invoke onFailure callback";
+            }
+        }
+        LOG(ERROR) << "Wifi HAL stop failed";
+    }
+    return wifi_status;
+}
+
+std::pair<WifiStatus, std::vector<ChipId>> Wifi::getChipIdsInternal() {
+    std::vector<ChipId> chip_ids;
+    if (chip_.get()) {
+        chip_ids.emplace_back(kChipId);
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), std::move(chip_ids)};
+}
+
+std::pair<WifiStatus, sp<IWifiChip>> Wifi::getChipInternal(ChipId chip_id) {
+    if (!chip_.get()) {
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_STARTED), nullptr};
+    }
+    if (chip_id != kChipId) {
+        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), chip_};
+}
+
+WifiStatus Wifi::initializeModeControllerAndLegacyHal() {
+    if (!mode_controller_->initialize()) {
+        LOG(ERROR) << "Failed to initialize firmware mode controller";
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    legacy_hal::wifi_error legacy_status = legacy_hal_->initialize();
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to initialize legacy HAL: "
+                   << legacyErrorToString(legacy_status);
+        return createWifiStatusFromLegacyError(legacy_status);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus Wifi::stopLegacyHalAndDeinitializeModeController(
+    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
+    run_state_ = RunState::STOPPING;
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_->stop(lock, [&]() { run_state_ = RunState::STOPPED; });
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to stop legacy HAL: "
+                   << legacyErrorToString(legacy_status);
+        return createWifiStatusFromLegacyError(legacy_status);
+    }
+    if (!mode_controller_->deinitialize()) {
+        LOG(ERROR) << "Failed to deinitialize firmware mode controller";
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi.h b/wifi/1.3/default/wifi.h
new file mode 100644
index 0000000..c4ab773
--- /dev/null
+++ b/wifi/1.3/default/wifi.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_H_
+#define WIFI_H_
+
+#include <functional>
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.3/IWifi.h>
+#include <utils/Looper.h>
+
+#include "hidl_callback_util.h"
+#include "wifi_chip.h"
+#include "wifi_feature_flags.h"
+#include "wifi_legacy_hal.h"
+#include "wifi_mode_controller.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+/**
+ * Root HIDL interface object used to control the Wifi HAL.
+ */
+class Wifi : public V1_3::IWifi {
+   public:
+    Wifi(const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+         const std::shared_ptr<mode_controller::WifiModeController>
+             mode_controller,
+         const std::shared_ptr<iface_util::WifiIfaceUtil> iface_util,
+         const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags);
+
+    bool isValid();
+
+    // HIDL methods exposed.
+    Return<void> registerEventCallback(
+        const sp<IWifiEventCallback>& event_callback,
+        registerEventCallback_cb hidl_status_cb) override;
+    Return<bool> isStarted() override;
+    Return<void> start(start_cb hidl_status_cb) override;
+    Return<void> stop(stop_cb hidl_status_cb) override;
+    Return<void> getChipIds(getChipIds_cb hidl_status_cb) override;
+    Return<void> getChip(ChipId chip_id, getChip_cb hidl_status_cb) override;
+    Return<void> debug(const hidl_handle& handle,
+                       const hidl_vec<hidl_string>& options) override;
+
+   private:
+    enum class RunState { STOPPED, STARTED, STOPPING };
+
+    // Corresponding worker functions for the HIDL methods.
+    WifiStatus registerEventCallbackInternal(
+        const sp<IWifiEventCallback>& event_callback);
+    WifiStatus startInternal();
+    WifiStatus stopInternal(std::unique_lock<std::recursive_mutex>* lock);
+    std::pair<WifiStatus, std::vector<ChipId>> getChipIdsInternal();
+    std::pair<WifiStatus, sp<IWifiChip>> getChipInternal(ChipId chip_id);
+
+    WifiStatus initializeModeControllerAndLegacyHal();
+    WifiStatus stopLegacyHalAndDeinitializeModeController(
+        std::unique_lock<std::recursive_mutex>* lock);
+
+    // Instance is created in this root level |IWifi| HIDL interface object
+    // and shared with all the child HIDL interface objects.
+    std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::shared_ptr<mode_controller::WifiModeController> mode_controller_;
+    std::shared_ptr<iface_util::WifiIfaceUtil> iface_util_;
+    std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
+    RunState run_state_;
+    sp<WifiChip> chip_;
+    hidl_callback_util::HidlCallbackHandler<IWifiEventCallback>
+        event_cb_handler_;
+
+    DISALLOW_COPY_AND_ASSIGN(Wifi);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_H_
diff --git a/wifi/1.3/default/wifi_ap_iface.cpp b/wifi/1.3/default/wifi_ap_iface.cpp
new file mode 100644
index 0000000..9a8681a
--- /dev/null
+++ b/wifi/1.3/default/wifi_ap_iface.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "hidl_struct_util.h"
+#include "wifi_ap_iface.h"
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+
+WifiApIface::WifiApIface(
+    const std::string& ifname,
+    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+    const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util,
+    const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags)
+    : ifname_(ifname),
+      legacy_hal_(legacy_hal),
+      iface_util_(iface_util),
+      feature_flags_(feature_flags),
+      is_valid_(true) {
+    if (feature_flags_.lock()->isApMacRandomizationDisabled()) {
+        LOG(INFO) << "AP MAC randomization disabled";
+        return;
+    }
+    LOG(INFO) << "AP MAC randomization enabled";
+    // Set random MAC address
+    std::array<uint8_t, 6> randomized_mac =
+        iface_util_.lock()->getOrCreateRandomMacAddress();
+    bool status = iface_util_.lock()->setMacAddress(ifname_, randomized_mac);
+    if (!status) {
+        LOG(ERROR) << "Failed to set random mac address";
+    }
+}
+
+void WifiApIface::invalidate() {
+    legacy_hal_.reset();
+    is_valid_ = false;
+}
+
+bool WifiApIface::isValid() { return is_valid_; }
+
+std::string WifiApIface::getName() { return ifname_; }
+
+Return<void> WifiApIface::getName(getName_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiApIface::getNameInternal, hidl_status_cb);
+}
+
+Return<void> WifiApIface::getType(getType_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiApIface::getTypeInternal, hidl_status_cb);
+}
+
+Return<void> WifiApIface::setCountryCode(const hidl_array<int8_t, 2>& code,
+                                         setCountryCode_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiApIface::setCountryCodeInternal, hidl_status_cb,
+                           code);
+}
+
+Return<void> WifiApIface::getValidFrequenciesForBand(
+    WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiApIface::getValidFrequenciesForBandInternal,
+                           hidl_status_cb, band);
+}
+
+std::pair<WifiStatus, std::string> WifiApIface::getNameInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
+}
+
+std::pair<WifiStatus, IfaceType> WifiApIface::getTypeInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::AP};
+}
+
+WifiStatus WifiApIface::setCountryCodeInternal(
+    const std::array<int8_t, 2>& code) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->setCountryCode(ifname_, code);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
+WifiApIface::getValidFrequenciesForBandInternal(WifiBand band) {
+    static_assert(sizeof(WifiChannelInMhz) == sizeof(uint32_t),
+                  "Size mismatch");
+    legacy_hal::wifi_error legacy_status;
+    std::vector<uint32_t> valid_frequencies;
+    std::tie(legacy_status, valid_frequencies) =
+        legacy_hal_.lock()->getValidFrequenciesForBand(
+            ifname_, hidl_struct_util::convertHidlWifiBandToLegacy(band));
+    return {createWifiStatusFromLegacyError(legacy_status), valid_frequencies};
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_ap_iface.h b/wifi/1.3/default/wifi_ap_iface.h
new file mode 100644
index 0000000..98c5c9c
--- /dev/null
+++ b/wifi/1.3/default/wifi_ap_iface.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_AP_IFACE_H_
+#define WIFI_AP_IFACE_H_
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.0/IWifiApIface.h>
+
+#include "wifi_feature_flags.h"
+#include "wifi_iface_util.h"
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * HIDL interface object used to control a AP Iface instance.
+ */
+class WifiApIface : public V1_0::IWifiApIface {
+   public:
+    WifiApIface(
+        const std::string& ifname,
+        const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+        const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util,
+        const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags);
+    // Refer to |WifiChip::invalidate()|.
+    void invalidate();
+    bool isValid();
+    std::string getName();
+
+    // HIDL methods exposed.
+    Return<void> getName(getName_cb hidl_status_cb) override;
+    Return<void> getType(getType_cb hidl_status_cb) override;
+    Return<void> setCountryCode(const hidl_array<int8_t, 2>& code,
+                                setCountryCode_cb hidl_status_cb) override;
+    Return<void> getValidFrequenciesForBand(
+        WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) override;
+
+   private:
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, std::string> getNameInternal();
+    std::pair<WifiStatus, IfaceType> getTypeInternal();
+    WifiStatus setCountryCodeInternal(const std::array<int8_t, 2>& code);
+    std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
+    getValidFrequenciesForBandInternal(WifiBand band);
+
+    std::string ifname_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::weak_ptr<iface_util::WifiIfaceUtil> iface_util_;
+    std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
+    bool is_valid_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiApIface);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_AP_IFACE_H_
diff --git a/wifi/1.3/default/wifi_chip.cpp b/wifi/1.3/default/wifi_chip.cpp
new file mode 100644
index 0000000..906f14a
--- /dev/null
+++ b/wifi/1.3/default/wifi_chip.cpp
@@ -0,0 +1,1395 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <fcntl.h>
+
+#include <android-base/logging.h>
+#include <android-base/unique_fd.h>
+#include <cutils/properties.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+
+#include "hidl_return_util.h"
+#include "hidl_struct_util.h"
+#include "wifi_chip.h"
+#include "wifi_status_util.h"
+
+namespace {
+using android::sp;
+using android::base::unique_fd;
+using android::hardware::hidl_string;
+using android::hardware::hidl_vec;
+using android::hardware::wifi::V1_0::ChipModeId;
+using android::hardware::wifi::V1_0::IfaceType;
+using android::hardware::wifi::V1_0::IWifiChip;
+
+constexpr char kCpioMagic[] = "070701";
+constexpr size_t kMaxBufferSizeBytes = 1024 * 1024 * 3;
+constexpr uint32_t kMaxRingBufferFileAgeSeconds = 60 * 60 * 10;
+constexpr uint32_t kMaxRingBufferFileNum = 20;
+constexpr char kTombstoneFolderPath[] = "/data/vendor/tombstones/wifi/";
+constexpr unsigned kMaxWlanIfaces = 100;
+
+template <typename Iface>
+void invalidateAndClear(std::vector<sp<Iface>>& ifaces, sp<Iface> iface) {
+    iface->invalidate();
+    ifaces.erase(std::remove(ifaces.begin(), ifaces.end(), iface),
+                 ifaces.end());
+}
+
+template <typename Iface>
+void invalidateAndClearAll(std::vector<sp<Iface>>& ifaces) {
+    for (const auto& iface : ifaces) {
+        iface->invalidate();
+    }
+    ifaces.clear();
+}
+
+template <typename Iface>
+std::vector<hidl_string> getNames(std::vector<sp<Iface>>& ifaces) {
+    std::vector<hidl_string> names;
+    for (const auto& iface : ifaces) {
+        names.emplace_back(iface->getName());
+    }
+    return names;
+}
+
+template <typename Iface>
+sp<Iface> findUsingName(std::vector<sp<Iface>>& ifaces,
+                        const std::string& name) {
+    std::vector<hidl_string> names;
+    for (const auto& iface : ifaces) {
+        if (name == iface->getName()) {
+            return iface;
+        }
+    }
+    return nullptr;
+}
+
+std::string getWlanIfaceName(unsigned idx) {
+    if (idx >= kMaxWlanIfaces) {
+        CHECK(false) << "Requested interface beyond wlan" << kMaxWlanIfaces;
+        return {};
+    }
+
+    std::array<char, PROPERTY_VALUE_MAX> buffer;
+    std::string propName = "wifi.interface." + std::to_string(idx);
+    auto res = property_get(propName.c_str(), buffer.data(), nullptr);
+    if (res > 0) return buffer.data();
+
+    if (idx == 0 || idx == 1) {
+        const char* altPropName =
+            (idx == 0) ? "wifi.interface" : "wifi.concurrent.interface";
+        res = property_get(altPropName, buffer.data(), nullptr);
+        if (res > 0) return buffer.data();
+    }
+
+    return "wlan" + std::to_string(idx);
+}
+
+std::string getP2pIfaceName() {
+    std::array<char, PROPERTY_VALUE_MAX> buffer;
+    property_get("wifi.direct.interface", buffer.data(), "p2p0");
+    return buffer.data();
+}
+
+// delete files that meet either conditions:
+// 1. older than a predefined time in the wifi tombstone dir.
+// 2. Files in excess to a predefined amount, starting from the oldest ones
+bool removeOldFilesInternal() {
+    time_t now = time(0);
+    const time_t delete_files_before = now - kMaxRingBufferFileAgeSeconds;
+    std::unique_ptr<DIR, decltype(&closedir)> dir_dump(
+        opendir(kTombstoneFolderPath), closedir);
+    if (!dir_dump) {
+        LOG(ERROR) << "Failed to open directory: " << strerror(errno);
+        return false;
+    }
+    struct dirent* dp;
+    bool success = true;
+    std::list<std::pair<const time_t, std::string>> valid_files;
+    while ((dp = readdir(dir_dump.get()))) {
+        if (dp->d_type != DT_REG) {
+            continue;
+        }
+        std::string cur_file_name(dp->d_name);
+        struct stat cur_file_stat;
+        std::string cur_file_path = kTombstoneFolderPath + cur_file_name;
+        if (stat(cur_file_path.c_str(), &cur_file_stat) == -1) {
+            LOG(ERROR) << "Failed to get file stat for " << cur_file_path
+                       << ": " << strerror(errno);
+            success = false;
+            continue;
+        }
+        const time_t cur_file_time = cur_file_stat.st_mtime;
+        valid_files.push_back(
+            std::pair<const time_t, std::string>(cur_file_time, cur_file_path));
+    }
+    valid_files.sort();  // sort the list of files by last modified time from
+                         // small to big.
+    uint32_t cur_file_count = valid_files.size();
+    for (auto cur_file : valid_files) {
+        if (cur_file_count > kMaxRingBufferFileNum ||
+            cur_file.first < delete_files_before) {
+            if (unlink(cur_file.second.c_str()) != 0) {
+                LOG(ERROR) << "Error deleting file " << strerror(errno);
+                success = false;
+            }
+            cur_file_count--;
+        } else {
+            break;
+        }
+    }
+    return success;
+}
+
+// Helper function for |cpioArchiveFilesInDir|
+bool cpioWriteHeader(int out_fd, struct stat& st, const char* file_name,
+                     size_t file_name_len) {
+    std::array<char, 32 * 1024> read_buf;
+    ssize_t llen =
+        sprintf(read_buf.data(),
+                "%s%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X%08X",
+                kCpioMagic, static_cast<int>(st.st_ino), st.st_mode, st.st_uid,
+                st.st_gid, static_cast<int>(st.st_nlink),
+                static_cast<int>(st.st_mtime), static_cast<int>(st.st_size),
+                major(st.st_dev), minor(st.st_dev), major(st.st_rdev),
+                minor(st.st_rdev), static_cast<uint32_t>(file_name_len), 0);
+    if (write(out_fd, read_buf.data(), llen) == -1) {
+        LOG(ERROR) << "Error writing cpio header to file " << file_name << " "
+                   << strerror(errno);
+        return false;
+    }
+    if (write(out_fd, file_name, file_name_len) == -1) {
+        LOG(ERROR) << "Error writing filename to file " << file_name << " "
+                   << strerror(errno);
+        return false;
+    }
+
+    // NUL Pad header up to 4 multiple bytes.
+    llen = (llen + file_name_len) % 4;
+    if (llen != 0) {
+        const uint32_t zero = 0;
+        if (write(out_fd, &zero, 4 - llen) == -1) {
+            LOG(ERROR) << "Error padding 0s to file " << file_name << " "
+                       << strerror(errno);
+            return false;
+        }
+    }
+    return true;
+}
+
+// Helper function for |cpioArchiveFilesInDir|
+size_t cpioWriteFileContent(int fd_read, int out_fd, struct stat& st) {
+    // writing content of file
+    std::array<char, 32 * 1024> read_buf;
+    ssize_t llen = st.st_size;
+    size_t n_error = 0;
+    while (llen > 0) {
+        ssize_t bytes_read = read(fd_read, read_buf.data(), read_buf.size());
+        if (bytes_read == -1) {
+            LOG(ERROR) << "Error reading file " << strerror(errno);
+            return ++n_error;
+        }
+        llen -= bytes_read;
+        if (write(out_fd, read_buf.data(), bytes_read) == -1) {
+            LOG(ERROR) << "Error writing data to file " << strerror(errno);
+            return ++n_error;
+        }
+        if (bytes_read == 0) {  // this should never happen, but just in case
+                                // to unstuck from while loop
+            LOG(ERROR) << "Unexpected read result for " << strerror(errno);
+            n_error++;
+            break;
+        }
+    }
+    llen = st.st_size % 4;
+    if (llen != 0) {
+        const uint32_t zero = 0;
+        if (write(out_fd, &zero, 4 - llen) == -1) {
+            LOG(ERROR) << "Error padding 0s to file " << strerror(errno);
+            return ++n_error;
+        }
+    }
+    return n_error;
+}
+
+// Helper function for |cpioArchiveFilesInDir|
+bool cpioWriteFileTrailer(int out_fd) {
+    std::array<char, 4096> read_buf;
+    read_buf.fill(0);
+    if (write(out_fd, read_buf.data(),
+              sprintf(read_buf.data(), "070701%040X%056X%08XTRAILER!!!", 1,
+                      0x0b, 0) +
+                  4) == -1) {
+        LOG(ERROR) << "Error writing trailing bytes " << strerror(errno);
+        return false;
+    }
+    return true;
+}
+
+// Archives all files in |input_dir| and writes result into |out_fd|
+// Logic obtained from //external/toybox/toys/posix/cpio.c "Output cpio archive"
+// portion
+size_t cpioArchiveFilesInDir(int out_fd, const char* input_dir) {
+    struct dirent* dp;
+    size_t n_error = 0;
+    std::unique_ptr<DIR, decltype(&closedir)> dir_dump(opendir(input_dir),
+                                                       closedir);
+    if (!dir_dump) {
+        LOG(ERROR) << "Failed to open directory: " << strerror(errno);
+        return ++n_error;
+    }
+    while ((dp = readdir(dir_dump.get()))) {
+        if (dp->d_type != DT_REG) {
+            continue;
+        }
+        std::string cur_file_name(dp->d_name);
+        // string.size() does not include the null terminator. The cpio FreeBSD
+        // file header expects the null character to be included in the length.
+        const size_t file_name_len = cur_file_name.size() + 1;
+        struct stat st;
+        const std::string cur_file_path = kTombstoneFolderPath + cur_file_name;
+        if (stat(cur_file_path.c_str(), &st) == -1) {
+            LOG(ERROR) << "Failed to get file stat for " << cur_file_path
+                       << ": " << strerror(errno);
+            n_error++;
+            continue;
+        }
+        const int fd_read = open(cur_file_path.c_str(), O_RDONLY);
+        if (fd_read == -1) {
+            LOG(ERROR) << "Failed to open file " << cur_file_path << " "
+                       << strerror(errno);
+            n_error++;
+            continue;
+        }
+        unique_fd file_auto_closer(fd_read);
+        if (!cpioWriteHeader(out_fd, st, cur_file_name.c_str(),
+                             file_name_len)) {
+            return ++n_error;
+        }
+        size_t write_error = cpioWriteFileContent(fd_read, out_fd, st);
+        if (write_error) {
+            return n_error + write_error;
+        }
+    }
+    if (!cpioWriteFileTrailer(out_fd)) {
+        return ++n_error;
+    }
+    return n_error;
+}
+
+// Helper function to create a non-const char*.
+std::vector<char> makeCharVec(const std::string& str) {
+    std::vector<char> vec(str.size() + 1);
+    vec.assign(str.begin(), str.end());
+    vec.push_back('\0');
+    return vec;
+}
+
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+using hidl_return_util::validateAndCallWithLock;
+
+WifiChip::WifiChip(
+    ChipId chip_id, const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+    const std::weak_ptr<mode_controller::WifiModeController> mode_controller,
+    const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util,
+    const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags)
+    : chip_id_(chip_id),
+      legacy_hal_(legacy_hal),
+      mode_controller_(mode_controller),
+      iface_util_(iface_util),
+      feature_flags_(feature_flags),
+      is_valid_(true),
+      current_mode_id_(feature_flags::chip_mode_ids::kInvalid),
+      modes_(feature_flags.lock()->getChipModes()),
+      debug_ring_buffer_cb_registered_(false) {}
+
+void WifiChip::invalidate() {
+    if (!writeRingbufferFilesInternal()) {
+        LOG(ERROR) << "Error writing files to flash";
+    }
+    invalidateAndRemoveAllIfaces();
+    legacy_hal_.reset();
+    event_cb_handler_.invalidate();
+    is_valid_ = false;
+}
+
+bool WifiChip::isValid() { return is_valid_; }
+
+std::set<sp<V1_2::IWifiChipEventCallback>> WifiChip::getEventCallbacks() {
+    return event_cb_handler_.getCallbacks();
+}
+
+Return<void> WifiChip::getId(getId_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getIdInternal, hidl_status_cb);
+}
+
+// Deprecated support for this callback
+Return<void> WifiChip::registerEventCallback(
+    const sp<V1_0::IWifiChipEventCallback>& event_callback,
+    registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::registerEventCallbackInternal,
+                           hidl_status_cb, event_callback);
+}
+
+Return<void> WifiChip::getCapabilities(getCapabilities_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getCapabilitiesInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getAvailableModes(getAvailableModes_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getAvailableModesInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::configureChip(ChipModeId mode_id,
+                                     configureChip_cb hidl_status_cb) {
+    return validateAndCallWithLock(
+        this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+        &WifiChip::configureChipInternal, hidl_status_cb, mode_id);
+}
+
+Return<void> WifiChip::getMode(getMode_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getModeInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::requestChipDebugInfo(
+    requestChipDebugInfo_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::requestChipDebugInfoInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::requestDriverDebugDump(
+    requestDriverDebugDump_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::requestDriverDebugDumpInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::requestFirmwareDebugDump(
+    requestFirmwareDebugDump_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::requestFirmwareDebugDumpInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::createApIface(createApIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::createApIfaceInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getApIfaceNames(getApIfaceNames_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getApIfaceNamesInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getApIface(const hidl_string& ifname,
+                                  getApIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getApIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::removeApIface(const hidl_string& ifname,
+                                     removeApIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::removeApIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::createNanIface(createNanIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::createNanIfaceInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getNanIfaceNames(getNanIfaceNames_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getNanIfaceNamesInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getNanIface(const hidl_string& ifname,
+                                   getNanIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getNanIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::removeNanIface(const hidl_string& ifname,
+                                      removeNanIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::removeNanIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::createP2pIface(createP2pIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::createP2pIfaceInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getP2pIfaceNames(getP2pIfaceNames_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getP2pIfaceNamesInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getP2pIface(const hidl_string& ifname,
+                                   getP2pIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getP2pIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::removeP2pIface(const hidl_string& ifname,
+                                      removeP2pIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::removeP2pIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::createStaIface(createStaIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::createStaIfaceInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getStaIfaceNames(getStaIfaceNames_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getStaIfaceNamesInternal, hidl_status_cb);
+}
+
+Return<void> WifiChip::getStaIface(const hidl_string& ifname,
+                                   getStaIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getStaIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::removeStaIface(const hidl_string& ifname,
+                                      removeStaIface_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::removeStaIfaceInternal, hidl_status_cb,
+                           ifname);
+}
+
+Return<void> WifiChip::createRttController(
+    const sp<IWifiIface>& bound_iface, createRttController_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::createRttControllerInternal,
+                           hidl_status_cb, bound_iface);
+}
+
+Return<void> WifiChip::getDebugRingBuffersStatus(
+    getDebugRingBuffersStatus_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getDebugRingBuffersStatusInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::startLoggingToDebugRingBuffer(
+    const hidl_string& ring_name, WifiDebugRingBufferVerboseLevel verbose_level,
+    uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes,
+    startLoggingToDebugRingBuffer_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::startLoggingToDebugRingBufferInternal,
+                           hidl_status_cb, ring_name, verbose_level,
+                           max_interval_in_sec, min_data_size_in_bytes);
+}
+
+Return<void> WifiChip::forceDumpToDebugRingBuffer(
+    const hidl_string& ring_name,
+    forceDumpToDebugRingBuffer_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::forceDumpToDebugRingBufferInternal,
+                           hidl_status_cb, ring_name);
+}
+
+Return<void> WifiChip::flushRingBufferToFile(
+    flushRingBufferToFile_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::flushRingBufferToFileInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::stopLoggingToDebugRingBuffer(
+    stopLoggingToDebugRingBuffer_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::stopLoggingToDebugRingBufferInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::getDebugHostWakeReasonStats(
+    getDebugHostWakeReasonStats_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getDebugHostWakeReasonStatsInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::enableDebugErrorAlerts(
+    bool enable, enableDebugErrorAlerts_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::enableDebugErrorAlertsInternal,
+                           hidl_status_cb, enable);
+}
+
+Return<void> WifiChip::selectTxPowerScenario(
+    V1_1::IWifiChip::TxPowerScenario scenario,
+    selectTxPowerScenario_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::selectTxPowerScenarioInternal,
+                           hidl_status_cb, scenario);
+}
+
+Return<void> WifiChip::resetTxPowerScenario(
+    resetTxPowerScenario_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::resetTxPowerScenarioInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::setLatencyMode(LatencyMode mode,
+                                      setLatencyMode_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::setLatencyModeInternal, hidl_status_cb,
+                           mode);
+}
+
+Return<void> WifiChip::registerEventCallback_1_2(
+    const sp<V1_2::IWifiChipEventCallback>& event_callback,
+    registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::registerEventCallbackInternal_1_2,
+                           hidl_status_cb, event_callback);
+}
+
+Return<void> WifiChip::selectTxPowerScenario_1_2(
+    TxPowerScenario scenario, selectTxPowerScenario_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::selectTxPowerScenarioInternal_1_2,
+                           hidl_status_cb, scenario);
+}
+
+Return<void> WifiChip::getCapabilities_1_3(getCapabilities_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::getCapabilitiesInternal_1_3,
+                           hidl_status_cb);
+}
+
+Return<void> WifiChip::debug(const hidl_handle& handle,
+                             const hidl_vec<hidl_string>&) {
+    if (handle != nullptr && handle->numFds >= 1) {
+        int fd = handle->data[0];
+        if (!writeRingbufferFilesInternal()) {
+            LOG(ERROR) << "Error writing files to flash";
+        }
+        uint32_t n_error = cpioArchiveFilesInDir(fd, kTombstoneFolderPath);
+        if (n_error != 0) {
+            LOG(ERROR) << n_error << " errors occured in cpio function";
+        }
+        fsync(fd);
+    } else {
+        LOG(ERROR) << "File handle error";
+    }
+    return Void();
+}
+
+void WifiChip::invalidateAndRemoveAllIfaces() {
+    invalidateAndClearAll(ap_ifaces_);
+    invalidateAndClearAll(nan_ifaces_);
+    invalidateAndClearAll(p2p_ifaces_);
+    invalidateAndClearAll(sta_ifaces_);
+    // Since all the ifaces are invalid now, all RTT controller objects
+    // using those ifaces also need to be invalidated.
+    for (const auto& rtt : rtt_controllers_) {
+        rtt->invalidate();
+    }
+    rtt_controllers_.clear();
+}
+
+std::pair<WifiStatus, ChipId> WifiChip::getIdInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), chip_id_};
+}
+
+WifiStatus WifiChip::registerEventCallbackInternal(
+    const sp<V1_0::IWifiChipEventCallback>& /* event_callback */) {
+    // Deprecated support for this callback.
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
+}
+
+std::pair<WifiStatus, uint32_t> WifiChip::getCapabilitiesInternal() {
+    // Deprecated support for this callback.
+    return {createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED), 0};
+}
+
+std::pair<WifiStatus, uint32_t> WifiChip::getCapabilitiesInternal_1_3() {
+    legacy_hal::wifi_error legacy_status;
+    uint32_t legacy_feature_set;
+    uint32_t legacy_logger_feature_set;
+    const auto ifname = getWlanIfaceName(0);
+    std::tie(legacy_status, legacy_feature_set) =
+        legacy_hal_.lock()->getSupportedFeatureSet(ifname);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), 0};
+    }
+    std::tie(legacy_status, legacy_logger_feature_set) =
+        legacy_hal_.lock()->getLoggerSupportedFeatureSet(ifname);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        // some devices don't support querying logger feature set
+        legacy_logger_feature_set = 0;
+    }
+    uint32_t hidl_caps;
+    if (!hidl_struct_util::convertLegacyFeaturesToHidlChipCapabilities(
+            legacy_feature_set, legacy_logger_feature_set, &hidl_caps)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), 0};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
+}
+
+std::pair<WifiStatus, std::vector<IWifiChip::ChipMode>>
+WifiChip::getAvailableModesInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), modes_};
+}
+
+WifiStatus WifiChip::configureChipInternal(
+    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock,
+    ChipModeId mode_id) {
+    if (!isValidModeId(mode_id)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    if (mode_id == current_mode_id_) {
+        LOG(DEBUG) << "Already in the specified mode " << mode_id;
+        return createWifiStatus(WifiStatusCode::SUCCESS);
+    }
+    WifiStatus status = handleChipConfiguration(lock, mode_id);
+    if (status.code != WifiStatusCode::SUCCESS) {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onChipReconfigureFailure(status).isOk()) {
+                LOG(ERROR)
+                    << "Failed to invoke onChipReconfigureFailure callback";
+            }
+        }
+        return status;
+    }
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onChipReconfigured(mode_id).isOk()) {
+            LOG(ERROR) << "Failed to invoke onChipReconfigured callback";
+        }
+    }
+    current_mode_id_ = mode_id;
+    LOG(INFO) << "Configured chip in mode " << mode_id;
+    return status;
+}
+
+std::pair<WifiStatus, uint32_t> WifiChip::getModeInternal() {
+    if (!isValidModeId(current_mode_id_)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE),
+                current_mode_id_};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), current_mode_id_};
+}
+
+std::pair<WifiStatus, IWifiChip::ChipDebugInfo>
+WifiChip::requestChipDebugInfoInternal() {
+    IWifiChip::ChipDebugInfo result;
+    legacy_hal::wifi_error legacy_status;
+    std::string driver_desc;
+    const auto ifname = getWlanIfaceName(0);
+    std::tie(legacy_status, driver_desc) =
+        legacy_hal_.lock()->getDriverVersion(ifname);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to get driver version: "
+                   << legacyErrorToString(legacy_status);
+        WifiStatus status = createWifiStatusFromLegacyError(
+            legacy_status, "failed to get driver version");
+        return {status, result};
+    }
+    result.driverDescription = driver_desc.c_str();
+
+    std::string firmware_desc;
+    std::tie(legacy_status, firmware_desc) =
+        legacy_hal_.lock()->getFirmwareVersion(ifname);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to get firmware version: "
+                   << legacyErrorToString(legacy_status);
+        WifiStatus status = createWifiStatusFromLegacyError(
+            legacy_status, "failed to get firmware version");
+        return {status, result};
+    }
+    result.firmwareDescription = firmware_desc.c_str();
+
+    return {createWifiStatus(WifiStatusCode::SUCCESS), result};
+}
+
+std::pair<WifiStatus, std::vector<uint8_t>>
+WifiChip::requestDriverDebugDumpInternal() {
+    legacy_hal::wifi_error legacy_status;
+    std::vector<uint8_t> driver_dump;
+    std::tie(legacy_status, driver_dump) =
+        legacy_hal_.lock()->requestDriverMemoryDump(getWlanIfaceName(0));
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to get driver debug dump: "
+                   << legacyErrorToString(legacy_status);
+        return {createWifiStatusFromLegacyError(legacy_status),
+                std::vector<uint8_t>()};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), driver_dump};
+}
+
+std::pair<WifiStatus, std::vector<uint8_t>>
+WifiChip::requestFirmwareDebugDumpInternal() {
+    legacy_hal::wifi_error legacy_status;
+    std::vector<uint8_t> firmware_dump;
+    std::tie(legacy_status, firmware_dump) =
+        legacy_hal_.lock()->requestFirmwareMemoryDump(getWlanIfaceName(0));
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to get firmware debug dump: "
+                   << legacyErrorToString(legacy_status);
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), firmware_dump};
+}
+
+std::pair<WifiStatus, sp<IWifiApIface>> WifiChip::createApIfaceInternal() {
+    if (!canCurrentModeSupportIfaceOfType(IfaceType::AP)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
+    }
+    std::string ifname = allocateApOrStaIfaceName();
+    sp<WifiApIface> iface =
+        new WifiApIface(ifname, legacy_hal_, iface_util_, feature_flags_);
+    ap_ifaces_.push_back(iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceAdded(IfaceType::AP, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
+        }
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+std::pair<WifiStatus, std::vector<hidl_string>>
+WifiChip::getApIfaceNamesInternal() {
+    if (ap_ifaces_.empty()) {
+        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(ap_ifaces_)};
+}
+
+std::pair<WifiStatus, sp<IWifiApIface>> WifiChip::getApIfaceInternal(
+    const std::string& ifname) {
+    const auto iface = findUsingName(ap_ifaces_, ifname);
+    if (!iface.get()) {
+        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+WifiStatus WifiChip::removeApIfaceInternal(const std::string& ifname) {
+    const auto iface = findUsingName(ap_ifaces_, ifname);
+    if (!iface.get()) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    invalidateAndClear(ap_ifaces_, iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceRemoved(IfaceType::AP, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
+        }
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, sp<IWifiNanIface>> WifiChip::createNanIfaceInternal() {
+    if (!canCurrentModeSupportIfaceOfType(IfaceType::NAN)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
+    }
+    // These are still assumed to be based on wlan0.
+    std::string ifname = getWlanIfaceName(0);
+    sp<WifiNanIface> iface = new WifiNanIface(ifname, legacy_hal_);
+    nan_ifaces_.push_back(iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceAdded(IfaceType::NAN, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
+        }
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+std::pair<WifiStatus, std::vector<hidl_string>>
+WifiChip::getNanIfaceNamesInternal() {
+    if (nan_ifaces_.empty()) {
+        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(nan_ifaces_)};
+}
+
+std::pair<WifiStatus, sp<IWifiNanIface>> WifiChip::getNanIfaceInternal(
+    const std::string& ifname) {
+    const auto iface = findUsingName(nan_ifaces_, ifname);
+    if (!iface.get()) {
+        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+WifiStatus WifiChip::removeNanIfaceInternal(const std::string& ifname) {
+    const auto iface = findUsingName(nan_ifaces_, ifname);
+    if (!iface.get()) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    invalidateAndClear(nan_ifaces_, iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceRemoved(IfaceType::NAN, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
+        }
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, sp<IWifiP2pIface>> WifiChip::createP2pIfaceInternal() {
+    if (!canCurrentModeSupportIfaceOfType(IfaceType::P2P)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
+    }
+    std::string ifname = getP2pIfaceName();
+    sp<WifiP2pIface> iface = new WifiP2pIface(ifname, legacy_hal_);
+    p2p_ifaces_.push_back(iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceAdded(IfaceType::P2P, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
+        }
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+std::pair<WifiStatus, std::vector<hidl_string>>
+WifiChip::getP2pIfaceNamesInternal() {
+    if (p2p_ifaces_.empty()) {
+        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(p2p_ifaces_)};
+}
+
+std::pair<WifiStatus, sp<IWifiP2pIface>> WifiChip::getP2pIfaceInternal(
+    const std::string& ifname) {
+    const auto iface = findUsingName(p2p_ifaces_, ifname);
+    if (!iface.get()) {
+        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+WifiStatus WifiChip::removeP2pIfaceInternal(const std::string& ifname) {
+    const auto iface = findUsingName(p2p_ifaces_, ifname);
+    if (!iface.get()) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    invalidateAndClear(p2p_ifaces_, iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceRemoved(IfaceType::P2P, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
+        }
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, sp<IWifiStaIface>> WifiChip::createStaIfaceInternal() {
+    if (!canCurrentModeSupportIfaceOfType(IfaceType::STA)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
+    }
+    std::string ifname = allocateApOrStaIfaceName();
+    sp<WifiStaIface> iface = new WifiStaIface(ifname, legacy_hal_, iface_util_);
+    sta_ifaces_.push_back(iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceAdded(IfaceType::STA, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceAdded callback";
+        }
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+std::pair<WifiStatus, std::vector<hidl_string>>
+WifiChip::getStaIfaceNamesInternal() {
+    if (sta_ifaces_.empty()) {
+        return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), getNames(sta_ifaces_)};
+}
+
+std::pair<WifiStatus, sp<IWifiStaIface>> WifiChip::getStaIfaceInternal(
+    const std::string& ifname) {
+    const auto iface = findUsingName(sta_ifaces_, ifname);
+    if (!iface.get()) {
+        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), iface};
+}
+
+WifiStatus WifiChip::removeStaIfaceInternal(const std::string& ifname) {
+    const auto iface = findUsingName(sta_ifaces_, ifname);
+    if (!iface.get()) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    invalidateAndClear(sta_ifaces_, iface);
+    for (const auto& callback : event_cb_handler_.getCallbacks()) {
+        if (!callback->onIfaceRemoved(IfaceType::STA, ifname).isOk()) {
+            LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
+        }
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, sp<IWifiRttController>>
+WifiChip::createRttControllerInternal(const sp<IWifiIface>& bound_iface) {
+    if (sta_ifaces_.size() == 0 &&
+        !canCurrentModeSupportIfaceOfType(IfaceType::STA)) {
+        LOG(ERROR) << "createRttControllerInternal: Chip cannot support STAs "
+                      "(and RTT by extension)";
+        return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
+    }
+    sp<WifiRttController> rtt =
+        new WifiRttController(getWlanIfaceName(0), bound_iface, legacy_hal_);
+    rtt_controllers_.emplace_back(rtt);
+    return {createWifiStatus(WifiStatusCode::SUCCESS), rtt};
+}
+
+std::pair<WifiStatus, std::vector<WifiDebugRingBufferStatus>>
+WifiChip::getDebugRingBuffersStatusInternal() {
+    legacy_hal::wifi_error legacy_status;
+    std::vector<legacy_hal::wifi_ring_buffer_status>
+        legacy_ring_buffer_status_vec;
+    std::tie(legacy_status, legacy_ring_buffer_status_vec) =
+        legacy_hal_.lock()->getRingBuffersStatus(getWlanIfaceName(0));
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    std::vector<WifiDebugRingBufferStatus> hidl_ring_buffer_status_vec;
+    if (!hidl_struct_util::convertLegacyVectorOfDebugRingBufferStatusToHidl(
+            legacy_ring_buffer_status_vec, &hidl_ring_buffer_status_vec)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS),
+            hidl_ring_buffer_status_vec};
+}
+
+WifiStatus WifiChip::startLoggingToDebugRingBufferInternal(
+    const hidl_string& ring_name, WifiDebugRingBufferVerboseLevel verbose_level,
+    uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes) {
+    WifiStatus status = registerDebugRingBufferCallback();
+    if (status.code != WifiStatusCode::SUCCESS) {
+        return status;
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->startRingBufferLogging(
+            getWlanIfaceName(0), ring_name,
+            static_cast<
+                std::underlying_type<WifiDebugRingBufferVerboseLevel>::type>(
+                verbose_level),
+            max_interval_in_sec, min_data_size_in_bytes);
+    ringbuffer_map_.insert(std::pair<std::string, Ringbuffer>(
+        ring_name, Ringbuffer(kMaxBufferSizeBytes)));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::forceDumpToDebugRingBufferInternal(
+    const hidl_string& ring_name) {
+    WifiStatus status = registerDebugRingBufferCallback();
+    if (status.code != WifiStatusCode::SUCCESS) {
+        return status;
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->getRingBufferData(getWlanIfaceName(0), ring_name);
+
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::flushRingBufferToFileInternal() {
+    if (!writeRingbufferFilesInternal()) {
+        LOG(ERROR) << "Error writing files to flash";
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiChip::stopLoggingToDebugRingBufferInternal() {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->deregisterRingBufferCallbackHandler(
+            getWlanIfaceName(0));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, WifiDebugHostWakeReasonStats>
+WifiChip::getDebugHostWakeReasonStatsInternal() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::WakeReasonStats legacy_stats;
+    std::tie(legacy_status, legacy_stats) =
+        legacy_hal_.lock()->getWakeReasonStats(getWlanIfaceName(0));
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    WifiDebugHostWakeReasonStats hidl_stats;
+    if (!hidl_struct_util::convertLegacyWakeReasonStatsToHidl(legacy_stats,
+                                                              &hidl_stats)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_stats};
+}
+
+WifiStatus WifiChip::enableDebugErrorAlertsInternal(bool enable) {
+    legacy_hal::wifi_error legacy_status;
+    if (enable) {
+        android::wp<WifiChip> weak_ptr_this(this);
+        const auto& on_alert_callback = [weak_ptr_this](
+                                            int32_t error_code,
+                                            std::vector<uint8_t> debug_data) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->onDebugErrorAlert(error_code, debug_data)
+                         .isOk()) {
+                    LOG(ERROR) << "Failed to invoke onDebugErrorAlert callback";
+                }
+            }
+        };
+        legacy_status = legacy_hal_.lock()->registerErrorAlertCallbackHandler(
+            getWlanIfaceName(0), on_alert_callback);
+    } else {
+        legacy_status = legacy_hal_.lock()->deregisterErrorAlertCallbackHandler(
+            getWlanIfaceName(0));
+    }
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::selectTxPowerScenarioInternal(
+    V1_1::IWifiChip::TxPowerScenario scenario) {
+    auto legacy_status = legacy_hal_.lock()->selectTxPowerScenario(
+        getWlanIfaceName(0),
+        hidl_struct_util::convertHidlTxPowerScenarioToLegacy(scenario));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::resetTxPowerScenarioInternal() {
+    auto legacy_status =
+        legacy_hal_.lock()->resetTxPowerScenario(getWlanIfaceName(0));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::setLatencyModeInternal(LatencyMode mode) {
+    auto legacy_status = legacy_hal_.lock()->setLatencyMode(
+        getWlanIfaceName(0),
+        hidl_struct_util::convertHidlLatencyModeToLegacy(mode));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::registerEventCallbackInternal_1_2(
+    const sp<V1_2::IWifiChipEventCallback>& event_callback) {
+    if (!event_cb_handler_.addCallback(event_callback)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiChip::selectTxPowerScenarioInternal_1_2(
+    TxPowerScenario scenario) {
+    auto legacy_status = legacy_hal_.lock()->selectTxPowerScenario(
+        getWlanIfaceName(0),
+        hidl_struct_util::convertHidlTxPowerScenarioToLegacy_1_2(scenario));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::handleChipConfiguration(
+    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock,
+    ChipModeId mode_id) {
+    // If the chip is already configured in a different mode, stop
+    // the legacy HAL and then start it after firmware mode change.
+    if (isValidModeId(current_mode_id_)) {
+        LOG(INFO) << "Reconfiguring chip from mode " << current_mode_id_
+                  << " to mode " << mode_id;
+        invalidateAndRemoveAllIfaces();
+        legacy_hal::wifi_error legacy_status =
+            legacy_hal_.lock()->stop(lock, []() {});
+        if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+            LOG(ERROR) << "Failed to stop legacy HAL: "
+                       << legacyErrorToString(legacy_status);
+            return createWifiStatusFromLegacyError(legacy_status);
+        }
+    }
+    // Firmware mode change not needed for V2 devices.
+    bool success = true;
+    if (mode_id == feature_flags::chip_mode_ids::kV1Sta) {
+        success = mode_controller_.lock()->changeFirmwareMode(IfaceType::STA);
+    } else if (mode_id == feature_flags::chip_mode_ids::kV1Ap) {
+        success = mode_controller_.lock()->changeFirmwareMode(IfaceType::AP);
+    }
+    if (!success) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->start();
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to start legacy HAL: "
+                   << legacyErrorToString(legacy_status);
+        return createWifiStatusFromLegacyError(legacy_status);
+    }
+    // Every time the HAL is restarted, we need to register the
+    // radio mode change callback.
+    WifiStatus status = registerRadioModeChangeCallback();
+    if (status.code != WifiStatusCode::SUCCESS) {
+        // This probably is not a critical failure?
+        LOG(ERROR) << "Failed to register radio mode change callback";
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiChip::registerDebugRingBufferCallback() {
+    if (debug_ring_buffer_cb_registered_) {
+        return createWifiStatus(WifiStatusCode::SUCCESS);
+    }
+
+    android::wp<WifiChip> weak_ptr_this(this);
+    const auto& on_ring_buffer_data_callback =
+        [weak_ptr_this](const std::string& name,
+                        const std::vector<uint8_t>& data,
+                        const legacy_hal::wifi_ring_buffer_status& status) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            WifiDebugRingBufferStatus hidl_status;
+            if (!hidl_struct_util::convertLegacyDebugRingBufferStatusToHidl(
+                    status, &hidl_status)) {
+                LOG(ERROR) << "Error converting ring buffer status";
+                return;
+            }
+            const auto& target = shared_ptr_this->ringbuffer_map_.find(name);
+            if (target != shared_ptr_this->ringbuffer_map_.end()) {
+                Ringbuffer& cur_buffer = target->second;
+                cur_buffer.append(data);
+            } else {
+                LOG(ERROR) << "Ringname " << name << " not found";
+                return;
+            }
+        };
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->registerRingBufferCallbackHandler(
+            getWlanIfaceName(0), on_ring_buffer_data_callback);
+
+    if (legacy_status == legacy_hal::WIFI_SUCCESS) {
+        debug_ring_buffer_cb_registered_ = true;
+    }
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiChip::registerRadioModeChangeCallback() {
+    android::wp<WifiChip> weak_ptr_this(this);
+    const auto& on_radio_mode_change_callback =
+        [weak_ptr_this](const std::vector<legacy_hal::WifiMacInfo>& mac_infos) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            std::vector<V1_2::IWifiChipEventCallback::RadioModeInfo>
+                hidl_radio_mode_infos;
+            if (!hidl_struct_util::convertLegacyWifiMacInfosToHidl(
+                    mac_infos, &hidl_radio_mode_infos)) {
+                LOG(ERROR) << "Error converting wifi mac info";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->onRadioModeChange(hidl_radio_mode_infos)
+                         .isOk()) {
+                    LOG(ERROR) << "Failed to invoke onRadioModeChange"
+                               << " callback on: " << toString(callback);
+                }
+            }
+        };
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->registerRadioModeChangeCallbackHandler(
+            getWlanIfaceName(0), on_radio_mode_change_callback);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::vector<IWifiChip::ChipIfaceCombination>
+WifiChip::getCurrentModeIfaceCombinations() {
+    if (!isValidModeId(current_mode_id_)) {
+        LOG(ERROR) << "Chip not configured in a mode yet";
+        return {};
+    }
+    for (const auto& mode : modes_) {
+        if (mode.id == current_mode_id_) {
+            return mode.availableCombinations;
+        }
+    }
+    CHECK(0) << "Expected to find iface combinations for current mode!";
+    return {};
+}
+
+// Returns a map indexed by IfaceType with the number of ifaces currently
+// created of the corresponding type.
+std::map<IfaceType, size_t> WifiChip::getCurrentIfaceCombination() {
+    std::map<IfaceType, size_t> iface_counts;
+    iface_counts[IfaceType::AP] = ap_ifaces_.size();
+    iface_counts[IfaceType::NAN] = nan_ifaces_.size();
+    iface_counts[IfaceType::P2P] = p2p_ifaces_.size();
+    iface_counts[IfaceType::STA] = sta_ifaces_.size();
+    return iface_counts;
+}
+
+// This expands the provided iface combinations to a more parseable
+// form. Returns a vector of available combinations possible with the number
+// of ifaces of each type in the combination.
+// This method is a port of HalDeviceManager.expandIfaceCombos() from framework.
+std::vector<std::map<IfaceType, size_t>> WifiChip::expandIfaceCombinations(
+    const IWifiChip::ChipIfaceCombination& combination) {
+    uint32_t num_expanded_combos = 1;
+    for (const auto& limit : combination.limits) {
+        for (uint32_t i = 0; i < limit.maxIfaces; i++) {
+            num_expanded_combos *= limit.types.size();
+        }
+    }
+
+    // Allocate the vector of expanded combos and reset all iface counts to 0
+    // in each combo.
+    std::vector<std::map<IfaceType, size_t>> expanded_combos;
+    expanded_combos.resize(num_expanded_combos);
+    for (auto& expanded_combo : expanded_combos) {
+        for (const auto type :
+             {IfaceType::AP, IfaceType::NAN, IfaceType::P2P, IfaceType::STA}) {
+            expanded_combo[type] = 0;
+        }
+    }
+    uint32_t span = num_expanded_combos;
+    for (const auto& limit : combination.limits) {
+        for (uint32_t i = 0; i < limit.maxIfaces; i++) {
+            span /= limit.types.size();
+            for (uint32_t k = 0; k < num_expanded_combos; ++k) {
+                const auto iface_type =
+                    limit.types[(k / span) % limit.types.size()];
+                expanded_combos[k][iface_type]++;
+            }
+        }
+    }
+    return expanded_combos;
+}
+
+bool WifiChip::canExpandedIfaceCombinationSupportIfaceOfType(
+    const std::map<IfaceType, size_t>& combo, IfaceType requested_type) {
+    const auto current_combo = getCurrentIfaceCombination();
+
+    // Check if we have space for 1 more iface of |type| in this combo
+    for (const auto type :
+         {IfaceType::AP, IfaceType::NAN, IfaceType::P2P, IfaceType::STA}) {
+        size_t num_ifaces_needed = current_combo.at(type);
+        if (type == requested_type) {
+            num_ifaces_needed++;
+        }
+        size_t num_ifaces_allowed = combo.at(type);
+        if (num_ifaces_needed > num_ifaces_allowed) {
+            return false;
+        }
+    }
+    return true;
+}
+
+// This method does the following:
+// a) Enumerate all possible iface combos by expanding the current
+//    ChipIfaceCombination.
+// b) Check if the requested iface type can be added to the current mode.
+bool WifiChip::canCurrentModeSupportIfaceOfType(IfaceType type) {
+    if (!isValidModeId(current_mode_id_)) {
+        LOG(ERROR) << "Chip not configured in a mode yet";
+        return false;
+    }
+    const auto combinations = getCurrentModeIfaceCombinations();
+    for (const auto& combination : combinations) {
+        const auto expanded_combos = expandIfaceCombinations(combination);
+        for (const auto& expanded_combo : expanded_combos) {
+            if (canExpandedIfaceCombinationSupportIfaceOfType(expanded_combo,
+                                                              type)) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+bool WifiChip::isValidModeId(ChipModeId mode_id) {
+    for (const auto& mode : modes_) {
+        if (mode.id == mode_id) {
+            return true;
+        }
+    }
+    return false;
+}
+
+// Return the first wlan (wlan0, wlan1 etc.) not already in use.
+// This doesn't check the actual presence of these interfaces.
+std::string WifiChip::allocateApOrStaIfaceName() {
+    for (unsigned i = 0; i < kMaxWlanIfaces; i++) {
+        const auto ifname = getWlanIfaceName(i);
+        if (findUsingName(ap_ifaces_, ifname)) continue;
+        if (findUsingName(sta_ifaces_, ifname)) continue;
+        return ifname;
+    }
+    // This should never happen. We screwed up somewhere if it did.
+    CHECK(false) << "All wlan interfaces in use already!";
+    return {};
+}
+
+bool WifiChip::writeRingbufferFilesInternal() {
+    if (!removeOldFilesInternal()) {
+        LOG(ERROR) << "Error occurred while deleting old tombstone files";
+        return false;
+    }
+    // write ringbuffers to file
+    for (const auto& item : ringbuffer_map_) {
+        const Ringbuffer& cur_buffer = item.second;
+        if (cur_buffer.getData().empty()) {
+            continue;
+        }
+        const std::string file_path_raw =
+            kTombstoneFolderPath + item.first + "XXXXXXXXXX";
+        const int dump_fd = mkstemp(makeCharVec(file_path_raw).data());
+        if (dump_fd == -1) {
+            LOG(ERROR) << "create file failed: " << strerror(errno);
+            return false;
+        }
+        unique_fd file_auto_closer(dump_fd);
+        for (const auto& cur_block : cur_buffer.getData()) {
+            if (write(dump_fd, cur_block.data(),
+                      sizeof(cur_block[0]) * cur_block.size()) == -1) {
+                LOG(ERROR) << "Error writing to file " << strerror(errno);
+            }
+        }
+    }
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_chip.h b/wifi/1.3/default/wifi_chip.h
new file mode 100644
index 0000000..3eb0aee
--- /dev/null
+++ b/wifi/1.3/default/wifi_chip.h
@@ -0,0 +1,265 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_CHIP_H_
+#define WIFI_CHIP_H_
+
+#include <list>
+#include <map>
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.3/IWifiChip.h>
+
+#include "hidl_callback_util.h"
+#include "ringbuffer.h"
+#include "wifi_ap_iface.h"
+#include "wifi_feature_flags.h"
+#include "wifi_legacy_hal.h"
+#include "wifi_mode_controller.h"
+#include "wifi_nan_iface.h"
+#include "wifi_p2p_iface.h"
+#include "wifi_rtt_controller.h"
+#include "wifi_sta_iface.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * HIDL interface object used to control a Wifi HAL chip instance.
+ * Since there is only a single chip instance used today, there is no
+ * identifying handle information stored here.
+ */
+class WifiChip : public V1_3::IWifiChip {
+   public:
+    WifiChip(
+        ChipId chip_id,
+        const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+        const std::weak_ptr<mode_controller::WifiModeController>
+            mode_controller,
+        const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util,
+        const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags);
+    // HIDL does not provide a built-in mechanism to let the server invalidate
+    // a HIDL interface object after creation. If any client process holds onto
+    // a reference to the object in their context, any method calls on that
+    // reference will continue to be directed to the server.
+    //
+    // However Wifi HAL needs to control the lifetime of these objects. So, add
+    // a public |invalidate| method to |WifiChip| and it's child objects. This
+    // will be used to mark an object invalid when either:
+    // a) Wifi HAL is stopped, or
+    // b) Wifi Chip is reconfigured.
+    //
+    // All HIDL method implementations should check if the object is still
+    // marked valid before processing them.
+    void invalidate();
+    bool isValid();
+    std::set<sp<V1_2::IWifiChipEventCallback>> getEventCallbacks();
+
+    // HIDL methods exposed.
+    Return<void> getId(getId_cb hidl_status_cb) override;
+    // Deprecated support for this callback
+    Return<void> registerEventCallback(
+        const sp<V1_0::IWifiChipEventCallback>& event_callback,
+        registerEventCallback_cb hidl_status_cb) override;
+    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
+    Return<void> getAvailableModes(
+        getAvailableModes_cb hidl_status_cb) override;
+    Return<void> configureChip(ChipModeId mode_id,
+                               configureChip_cb hidl_status_cb) override;
+    Return<void> getMode(getMode_cb hidl_status_cb) override;
+    Return<void> requestChipDebugInfo(
+        requestChipDebugInfo_cb hidl_status_cb) override;
+    Return<void> requestDriverDebugDump(
+        requestDriverDebugDump_cb hidl_status_cb) override;
+    Return<void> requestFirmwareDebugDump(
+        requestFirmwareDebugDump_cb hidl_status_cb) override;
+    Return<void> createApIface(createApIface_cb hidl_status_cb) override;
+    Return<void> getApIfaceNames(getApIfaceNames_cb hidl_status_cb) override;
+    Return<void> getApIface(const hidl_string& ifname,
+                            getApIface_cb hidl_status_cb) override;
+    Return<void> removeApIface(const hidl_string& ifname,
+                               removeApIface_cb hidl_status_cb) override;
+    Return<void> createNanIface(createNanIface_cb hidl_status_cb) override;
+    Return<void> getNanIfaceNames(getNanIfaceNames_cb hidl_status_cb) override;
+    Return<void> getNanIface(const hidl_string& ifname,
+                             getNanIface_cb hidl_status_cb) override;
+    Return<void> removeNanIface(const hidl_string& ifname,
+                                removeNanIface_cb hidl_status_cb) override;
+    Return<void> createP2pIface(createP2pIface_cb hidl_status_cb) override;
+    Return<void> getP2pIfaceNames(getP2pIfaceNames_cb hidl_status_cb) override;
+    Return<void> getP2pIface(const hidl_string& ifname,
+                             getP2pIface_cb hidl_status_cb) override;
+    Return<void> removeP2pIface(const hidl_string& ifname,
+                                removeP2pIface_cb hidl_status_cb) override;
+    Return<void> createStaIface(createStaIface_cb hidl_status_cb) override;
+    Return<void> getStaIfaceNames(getStaIfaceNames_cb hidl_status_cb) override;
+    Return<void> getStaIface(const hidl_string& ifname,
+                             getStaIface_cb hidl_status_cb) override;
+    Return<void> removeStaIface(const hidl_string& ifname,
+                                removeStaIface_cb hidl_status_cb) override;
+    Return<void> createRttController(
+        const sp<IWifiIface>& bound_iface,
+        createRttController_cb hidl_status_cb) override;
+    Return<void> getDebugRingBuffersStatus(
+        getDebugRingBuffersStatus_cb hidl_status_cb) override;
+    Return<void> startLoggingToDebugRingBuffer(
+        const hidl_string& ring_name,
+        WifiDebugRingBufferVerboseLevel verbose_level,
+        uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes,
+        startLoggingToDebugRingBuffer_cb hidl_status_cb) override;
+    Return<void> forceDumpToDebugRingBuffer(
+        const hidl_string& ring_name,
+        forceDumpToDebugRingBuffer_cb hidl_status_cb) override;
+    Return<void> flushRingBufferToFile(
+        flushRingBufferToFile_cb hidl_status_cb) override;
+    Return<void> stopLoggingToDebugRingBuffer(
+        stopLoggingToDebugRingBuffer_cb hidl_status_cb) override;
+    Return<void> getDebugHostWakeReasonStats(
+        getDebugHostWakeReasonStats_cb hidl_status_cb) override;
+    Return<void> enableDebugErrorAlerts(
+        bool enable, enableDebugErrorAlerts_cb hidl_status_cb) override;
+    Return<void> selectTxPowerScenario(
+        V1_1::IWifiChip::TxPowerScenario scenario,
+        selectTxPowerScenario_cb hidl_status_cb) override;
+    Return<void> resetTxPowerScenario(
+        resetTxPowerScenario_cb hidl_status_cb) override;
+    Return<void> setLatencyMode(LatencyMode mode,
+                                setLatencyMode_cb hidl_status_cb) override;
+    Return<void> registerEventCallback_1_2(
+        const sp<V1_2::IWifiChipEventCallback>& event_callback,
+        registerEventCallback_1_2_cb hidl_status_cb) override;
+    Return<void> selectTxPowerScenario_1_2(
+        TxPowerScenario scenario,
+        selectTxPowerScenario_cb hidl_status_cb) override;
+    Return<void> getCapabilities_1_3(
+        getCapabilities_cb hidl_status_cb) override;
+    Return<void> debug(const hidl_handle& handle,
+                       const hidl_vec<hidl_string>& options) override;
+
+   private:
+    void invalidateAndRemoveAllIfaces();
+
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, ChipId> getIdInternal();
+    // Deprecated support for this callback
+    WifiStatus registerEventCallbackInternal(
+        const sp<V1_0::IWifiChipEventCallback>& event_callback);
+    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal();
+    std::pair<WifiStatus, std::vector<ChipMode>> getAvailableModesInternal();
+    WifiStatus configureChipInternal(
+        std::unique_lock<std::recursive_mutex>* lock, ChipModeId mode_id);
+    std::pair<WifiStatus, uint32_t> getModeInternal();
+    std::pair<WifiStatus, IWifiChip::ChipDebugInfo>
+    requestChipDebugInfoInternal();
+    std::pair<WifiStatus, std::vector<uint8_t>>
+    requestDriverDebugDumpInternal();
+    std::pair<WifiStatus, std::vector<uint8_t>>
+    requestFirmwareDebugDumpInternal();
+    std::pair<WifiStatus, sp<IWifiApIface>> createApIfaceInternal();
+    std::pair<WifiStatus, std::vector<hidl_string>> getApIfaceNamesInternal();
+    std::pair<WifiStatus, sp<IWifiApIface>> getApIfaceInternal(
+        const std::string& ifname);
+    WifiStatus removeApIfaceInternal(const std::string& ifname);
+    std::pair<WifiStatus, sp<IWifiNanIface>> createNanIfaceInternal();
+    std::pair<WifiStatus, std::vector<hidl_string>> getNanIfaceNamesInternal();
+    std::pair<WifiStatus, sp<IWifiNanIface>> getNanIfaceInternal(
+        const std::string& ifname);
+    WifiStatus removeNanIfaceInternal(const std::string& ifname);
+    std::pair<WifiStatus, sp<IWifiP2pIface>> createP2pIfaceInternal();
+    std::pair<WifiStatus, std::vector<hidl_string>> getP2pIfaceNamesInternal();
+    std::pair<WifiStatus, sp<IWifiP2pIface>> getP2pIfaceInternal(
+        const std::string& ifname);
+    WifiStatus removeP2pIfaceInternal(const std::string& ifname);
+    std::pair<WifiStatus, sp<IWifiStaIface>> createStaIfaceInternal();
+    std::pair<WifiStatus, std::vector<hidl_string>> getStaIfaceNamesInternal();
+    std::pair<WifiStatus, sp<IWifiStaIface>> getStaIfaceInternal(
+        const std::string& ifname);
+    WifiStatus removeStaIfaceInternal(const std::string& ifname);
+    std::pair<WifiStatus, sp<IWifiRttController>> createRttControllerInternal(
+        const sp<IWifiIface>& bound_iface);
+    std::pair<WifiStatus, std::vector<WifiDebugRingBufferStatus>>
+    getDebugRingBuffersStatusInternal();
+    WifiStatus startLoggingToDebugRingBufferInternal(
+        const hidl_string& ring_name,
+        WifiDebugRingBufferVerboseLevel verbose_level,
+        uint32_t max_interval_in_sec, uint32_t min_data_size_in_bytes);
+    WifiStatus forceDumpToDebugRingBufferInternal(const hidl_string& ring_name);
+    WifiStatus flushRingBufferToFileInternal();
+    WifiStatus stopLoggingToDebugRingBufferInternal();
+    std::pair<WifiStatus, WifiDebugHostWakeReasonStats>
+    getDebugHostWakeReasonStatsInternal();
+    WifiStatus enableDebugErrorAlertsInternal(bool enable);
+    WifiStatus selectTxPowerScenarioInternal(
+        V1_1::IWifiChip::TxPowerScenario scenario);
+    WifiStatus resetTxPowerScenarioInternal();
+    WifiStatus setLatencyModeInternal(LatencyMode mode);
+    WifiStatus registerEventCallbackInternal_1_2(
+        const sp<V1_2::IWifiChipEventCallback>& event_callback);
+    WifiStatus selectTxPowerScenarioInternal_1_2(TxPowerScenario scenario);
+    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal_1_3();
+    WifiStatus handleChipConfiguration(
+        std::unique_lock<std::recursive_mutex>* lock, ChipModeId mode_id);
+    WifiStatus registerDebugRingBufferCallback();
+    WifiStatus registerRadioModeChangeCallback();
+
+    std::vector<IWifiChip::ChipIfaceCombination>
+    getCurrentModeIfaceCombinations();
+    std::map<IfaceType, size_t> getCurrentIfaceCombination();
+    std::vector<std::map<IfaceType, size_t>> expandIfaceCombinations(
+        const IWifiChip::ChipIfaceCombination& combination);
+    bool canExpandedIfaceCombinationSupportIfaceOfType(
+        const std::map<IfaceType, size_t>& combo, IfaceType type);
+    bool canCurrentModeSupportIfaceOfType(IfaceType type);
+    bool isValidModeId(ChipModeId mode_id);
+    std::string allocateApOrStaIfaceName();
+    bool writeRingbufferFilesInternal();
+
+    ChipId chip_id_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::weak_ptr<mode_controller::WifiModeController> mode_controller_;
+    std::weak_ptr<iface_util::WifiIfaceUtil> iface_util_;
+    std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
+    std::vector<sp<WifiApIface>> ap_ifaces_;
+    std::vector<sp<WifiNanIface>> nan_ifaces_;
+    std::vector<sp<WifiP2pIface>> p2p_ifaces_;
+    std::vector<sp<WifiStaIface>> sta_ifaces_;
+    std::vector<sp<WifiRttController>> rtt_controllers_;
+    std::map<std::string, Ringbuffer> ringbuffer_map_;
+    bool is_valid_;
+    // Members pertaining to chip configuration.
+    uint32_t current_mode_id_;
+    std::vector<IWifiChip::ChipMode> modes_;
+    // The legacy ring buffer callback API has only a global callback
+    // registration mechanism. Use this to check if we have already
+    // registered a callback.
+    bool debug_ring_buffer_cb_registered_;
+    hidl_callback_util::HidlCallbackHandler<V1_2::IWifiChipEventCallback>
+        event_cb_handler_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiChip);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_CHIP_H_
diff --git a/wifi/1.3/default/wifi_feature_flags.cpp b/wifi/1.3/default/wifi_feature_flags.cpp
new file mode 100644
index 0000000..7212cfa
--- /dev/null
+++ b/wifi/1.3/default/wifi_feature_flags.cpp
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "wifi_feature_flags.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace feature_flags {
+
+using V1_0::ChipModeId;
+using V1_0::IfaceType;
+using V1_0::IWifiChip;
+
+/* The chip may either have a single mode supporting any number of combinations,
+ * or a fixed dual-mode (so it involves firmware loading to switch between
+ * modes) setting. If there is a need to support more modes, it needs to be
+ * implemented manually in WiFi HAL (see changeFirmwareMode in
+ * WifiChip::handleChipConfiguration).
+ *
+ * Supported combinations are defined in device's makefile, for example:
+ *    WIFI_HAL_INTERFACE_COMBINATIONS := {{{STA, AP}, 1}, {{P2P, NAN}, 1}},
+ *    WIFI_HAL_INTERFACE_COMBINATIONS += {{{STA}, 1}, {{AP}, 2}}
+ * What means:
+ *    Interface combination 1: 1 STA or AP and 1 P2P or NAN concurrent iface
+ *                             operations.
+ *    Interface combination 2: 1 STA and 2 AP concurrent iface operations.
+ *
+ * For backward compatibility, the following makefile flags can be used to
+ * generate combinations list:
+ *  - WIFI_HIDL_FEATURE_DUAL_INTERFACE
+ *  - WIFI_HIDL_FEATURE_DISABLE_AP
+ *  - WIFI_HIDL_FEATURE_AWARE
+ * However, they are ignored if WIFI_HAL_INTERFACE_COMBINATIONS was provided.
+ * With WIFI_HIDL_FEATURE_DUAL_INTERFACE flag set, there is a single mode with
+ * two interface combinations:
+ *    Interface Combination 1: Will support 1 STA and 1 P2P or NAN (optional)
+ *                             concurrent iface operations.
+ *    Interface Combination 2: Will support 1 STA and 1 AP concurrent
+ *                             iface operations.
+ *
+ * The only dual-mode configuration supported is for alternating STA and AP
+ * mode, that may involve firmware reloading. In such case, there are 2 separate
+ * modes of operation with 1 interface combination each:
+ *    Mode 1 (STA mode): Will support 1 STA and 1 P2P or NAN (optional)
+ *                       concurrent iface operations.
+ *    Mode 2 (AP mode): Will support 1 AP iface operation.
+ *
+ * If Aware is enabled, the iface combination will be modified to support either
+ * P2P or NAN in place of just P2P.
+ */
+// clang-format off
+#ifdef WIFI_HAL_INTERFACE_COMBINATIONS
+constexpr ChipModeId kMainModeId = chip_mode_ids::kV3;
+#elif defined(WIFI_HIDL_FEATURE_DUAL_INTERFACE)
+// former V2 (fixed dual interface) setup expressed as V3
+constexpr ChipModeId kMainModeId = chip_mode_ids::kV3;
+#  ifdef WIFI_HIDL_FEATURE_DISABLE_AP
+#    ifdef WIFI_HIDL_FEATURE_AWARE
+//     1 STA + 1 of (P2P or NAN)
+#      define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P, NAN}, 1}}
+#    else
+//     1 STA + 1 P2P
+#      define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P}, 1}}
+#    endif
+#  else
+#    ifdef WIFI_HIDL_FEATURE_AWARE
+//     (1 STA + 1 AP) or (1 STA + 1 of (P2P or NAN))
+#      define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{AP}, 1}},\
+                                              {{{STA}, 1}, {{P2P, NAN}, 1}}
+#    else
+//     (1 STA + 1 AP) or (1 STA + 1 P2P)
+#      define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{AP}, 1}},\
+                                              {{{STA}, 1}, {{P2P}, 1}}
+#    endif
+#  endif
+#else
+// V1 (fixed single interface, dual-mode chip)
+constexpr ChipModeId kMainModeId = chip_mode_ids::kV1Sta;
+#  ifdef WIFI_HIDL_FEATURE_AWARE
+//   1 STA + 1 of (P2P or NAN)
+#    define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P, NAN}, 1}}
+#  else
+//   1 STA + 1 P2P
+#    define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P}, 1}}
+#  endif
+
+#  ifndef WIFI_HIDL_FEATURE_DISABLE_AP
+#    define WIFI_HAL_INTERFACE_COMBINATIONS_AP {{{AP}, 1}}
+#  endif
+#endif
+// clang-format on
+
+/**
+ * Helper class to convert a collection of combination limits to a combination.
+ *
+ * The main point here is to simplify the syntax required by
+ * WIFI_HAL_INTERFACE_COMBINATIONS.
+ */
+struct ChipIfaceCombination
+    : public hidl_vec<IWifiChip::ChipIfaceCombinationLimit> {
+    ChipIfaceCombination(
+        const std::initializer_list<IWifiChip::ChipIfaceCombinationLimit> list)
+        : hidl_vec(list) {}
+
+    operator IWifiChip::ChipIfaceCombination() const { return {*this}; }
+
+    static hidl_vec<IWifiChip::ChipIfaceCombination> make_vec(
+        const std::initializer_list<ChipIfaceCombination> list) {
+        return hidl_vec<IWifiChip::ChipIfaceCombination>(  //
+            std::begin(list), std::end(list));
+    }
+};
+
+#define STA IfaceType::STA
+#define AP IfaceType::AP
+#define P2P IfaceType::P2P
+#define NAN IfaceType::NAN
+static const std::vector<IWifiChip::ChipMode> kChipModes{
+    {kMainModeId,
+     ChipIfaceCombination::make_vec({WIFI_HAL_INTERFACE_COMBINATIONS})},
+#ifdef WIFI_HAL_INTERFACE_COMBINATIONS_AP
+    {chip_mode_ids::kV1Ap,
+     ChipIfaceCombination::make_vec({WIFI_HAL_INTERFACE_COMBINATIONS_AP})},
+#endif
+};
+#undef STA
+#undef AP
+#undef P2P
+#undef NAN
+
+#ifdef WIFI_HIDL_FEATURE_DISABLE_AP_MAC_RANDOMIZATION
+static const bool wifiHidlFeatureDisableApMacRandomization = true;
+#else
+static const bool wifiHidlFeatureDisableApMacRandomization = false;
+#endif  // WIFI_HIDL_FEATURE_DISABLE_AP
+
+WifiFeatureFlags::WifiFeatureFlags() {}
+
+std::vector<IWifiChip::ChipMode> WifiFeatureFlags::getChipModes() {
+    return kChipModes;
+}
+
+bool WifiFeatureFlags::isApMacRandomizationDisabled() {
+    return wifiHidlFeatureDisableApMacRandomization;
+}
+
+}  // namespace feature_flags
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_feature_flags.h b/wifi/1.3/default/wifi_feature_flags.h
new file mode 100644
index 0000000..3ae6920
--- /dev/null
+++ b/wifi/1.3/default/wifi_feature_flags.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_FEATURE_FLAGS_H_
+#define WIFI_FEATURE_FLAGS_H_
+
+#include <android/hardware/wifi/1.2/IWifiChip.h>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace feature_flags {
+
+namespace chip_mode_ids {
+// These mode ID's should be unique (even across combo versions). Refer to
+// handleChipConfiguration() for it's usage.
+constexpr V1_0::ChipModeId kInvalid = UINT32_MAX;
+// Mode ID's for V1
+constexpr V1_0::ChipModeId kV1Sta = 0;
+constexpr V1_0::ChipModeId kV1Ap = 1;
+// Mode ID for V3
+constexpr V1_0::ChipModeId kV3 = 3;
+}  // namespace chip_mode_ids
+
+class WifiFeatureFlags {
+   public:
+    WifiFeatureFlags();
+    virtual ~WifiFeatureFlags() = default;
+
+    virtual std::vector<V1_0::IWifiChip::ChipMode> getChipModes();
+    virtual bool isApMacRandomizationDisabled();
+};
+
+}  // namespace feature_flags
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_FEATURE_FLAGS_H_
diff --git a/wifi/1.3/default/wifi_iface_util.cpp b/wifi/1.3/default/wifi_iface_util.cpp
new file mode 100644
index 0000000..5d61271
--- /dev/null
+++ b/wifi/1.3/default/wifi_iface_util.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstddef>
+#include <iostream>
+#include <limits>
+#include <random>
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <private/android_filesystem_config.h>
+
+#undef NAN
+#include "wifi_iface_util.h"
+
+namespace {
+// Constants to set the local bit & clear the multicast bit.
+constexpr uint8_t kMacAddressMulticastMask = 0x01;
+constexpr uint8_t kMacAddressLocallyAssignedMask = 0x02;
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace iface_util {
+
+WifiIfaceUtil::WifiIfaceUtil() : random_mac_address_(nullptr) {}
+
+std::array<uint8_t, 6> WifiIfaceUtil::getFactoryMacAddress(
+    const std::string& iface_name) {
+    return iface_tool_.GetFactoryMacAddress(iface_name.c_str());
+}
+
+bool WifiIfaceUtil::setMacAddress(const std::string& iface_name,
+                                  const std::array<uint8_t, 6>& mac) {
+    if (!iface_tool_.SetUpState(iface_name.c_str(), false)) {
+        LOG(ERROR) << "SetUpState(false) failed.";
+        return false;
+    }
+    if (!iface_tool_.SetMacAddress(iface_name.c_str(), mac)) {
+        LOG(ERROR) << "SetMacAddress failed.";
+        return false;
+    }
+    if (!iface_tool_.SetUpState(iface_name.c_str(), true)) {
+        LOG(ERROR) << "SetUpState(true) failed.";
+        return false;
+    }
+    LOG(DEBUG) << "Successfully SetMacAddress.";
+    return true;
+}
+
+std::array<uint8_t, 6> WifiIfaceUtil::getOrCreateRandomMacAddress() {
+    if (random_mac_address_) {
+        return *random_mac_address_.get();
+    }
+    random_mac_address_ =
+        std::make_unique<std::array<uint8_t, 6>>(createRandomMacAddress());
+    return *random_mac_address_.get();
+}
+
+std::array<uint8_t, 6> WifiIfaceUtil::createRandomMacAddress() {
+    std::array<uint8_t, 6> address = {};
+    std::random_device rd;
+    std::default_random_engine engine(rd());
+    std::uniform_int_distribution<uint8_t> dist(
+        std::numeric_limits<uint8_t>::min(),
+        std::numeric_limits<uint8_t>::max());
+    for (size_t i = 0; i < address.size(); i++) {
+        address[i] = dist(engine);
+    }
+    // Set the local bit and clear the multicast bit.
+    address[0] |= kMacAddressLocallyAssignedMask;
+    address[0] &= ~kMacAddressMulticastMask;
+    return address;
+}
+}  // namespace iface_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_iface_util.h b/wifi/1.3/default/wifi_iface_util.h
new file mode 100644
index 0000000..b238234
--- /dev/null
+++ b/wifi/1.3/default/wifi_iface_util.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_IFACE_UTIL_H_
+#define WIFI_IFACE_UTIL_H_
+
+#include <wifi_system/interface_tool.h>
+
+#include <android/hardware/wifi/1.0/IWifi.h>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace iface_util {
+
+/**
+ * Util class for common iface operations.
+ */
+class WifiIfaceUtil {
+   public:
+    WifiIfaceUtil();
+    virtual ~WifiIfaceUtil() = default;
+
+    virtual std::array<uint8_t, 6> getFactoryMacAddress(
+        const std::string& iface_name);
+    virtual bool setMacAddress(const std::string& iface_name,
+                               const std::array<uint8_t, 6>& mac);
+    // Get or create a random MAC address. The MAC address returned from
+    // this method will remain the same throughout the lifetime of the HAL
+    // daemon. (So, changes on every reboot)
+    virtual std::array<uint8_t, 6> getOrCreateRandomMacAddress();
+
+   private:
+    std::array<uint8_t, 6> createRandomMacAddress();
+
+    wifi_system::InterfaceTool iface_tool_;
+    std::unique_ptr<std::array<uint8_t, 6>> random_mac_address_;
+};
+
+}  // namespace iface_util
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_IFACE_UTIL_H_
diff --git a/wifi/1.3/default/wifi_legacy_hal.cpp b/wifi/1.3/default/wifi_legacy_hal.cpp
new file mode 100644
index 0000000..2b90f92
--- /dev/null
+++ b/wifi/1.3/default/wifi_legacy_hal.cpp
@@ -0,0 +1,1451 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <array>
+#include <chrono>
+
+#include <android-base/logging.h>
+#include <cutils/properties.h>
+
+#include "hidl_sync_util.h"
+#include "wifi_legacy_hal.h"
+#include "wifi_legacy_hal_stubs.h"
+
+namespace {
+// Constants ported over from the legacy HAL calling code
+// (com_android_server_wifi_WifiNative.cpp). This will all be thrown
+// away when this shim layer is replaced by the real vendor
+// implementation.
+static constexpr uint32_t kMaxVersionStringLength = 256;
+static constexpr uint32_t kMaxCachedGscanResults = 64;
+static constexpr uint32_t kMaxGscanFrequenciesForBand = 64;
+static constexpr uint32_t kLinkLayerStatsDataMpduSizeThreshold = 128;
+static constexpr uint32_t kMaxWakeReasonStatsArraySize = 32;
+static constexpr uint32_t kMaxRingBuffers = 10;
+static constexpr uint32_t kMaxStopCompleteWaitMs = 100;
+static constexpr char kDriverPropName[] = "wlan.driver.status";
+
+// Helper function to create a non-const char* for legacy Hal API's.
+std::vector<char> makeCharVec(const std::string& str) {
+    std::vector<char> vec(str.size() + 1);
+    vec.assign(str.begin(), str.end());
+    vec.push_back('\0');
+    return vec;
+}
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace legacy_hal {
+// Legacy HAL functions accept "C" style function pointers, so use global
+// functions to pass to the legacy HAL function and store the corresponding
+// std::function methods to be invoked.
+//
+// Callback to be invoked once |stop| is complete
+std::function<void(wifi_handle handle)> on_stop_complete_internal_callback;
+void onAsyncStopComplete(wifi_handle handle) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_stop_complete_internal_callback) {
+        on_stop_complete_internal_callback(handle);
+        // Invalidate this callback since we don't want this firing again.
+        on_stop_complete_internal_callback = nullptr;
+    }
+}
+
+// Callback to be invoked for driver dump.
+std::function<void(char*, int)> on_driver_memory_dump_internal_callback;
+void onSyncDriverMemoryDump(char* buffer, int buffer_size) {
+    if (on_driver_memory_dump_internal_callback) {
+        on_driver_memory_dump_internal_callback(buffer, buffer_size);
+    }
+}
+
+// Callback to be invoked for firmware dump.
+std::function<void(char*, int)> on_firmware_memory_dump_internal_callback;
+void onSyncFirmwareMemoryDump(char* buffer, int buffer_size) {
+    if (on_firmware_memory_dump_internal_callback) {
+        on_firmware_memory_dump_internal_callback(buffer, buffer_size);
+    }
+}
+
+// Callback to be invoked for Gscan events.
+std::function<void(wifi_request_id, wifi_scan_event)>
+    on_gscan_event_internal_callback;
+void onAsyncGscanEvent(wifi_request_id id, wifi_scan_event event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_gscan_event_internal_callback) {
+        on_gscan_event_internal_callback(id, event);
+    }
+}
+
+// Callback to be invoked for Gscan full results.
+std::function<void(wifi_request_id, wifi_scan_result*, uint32_t)>
+    on_gscan_full_result_internal_callback;
+void onAsyncGscanFullResult(wifi_request_id id, wifi_scan_result* result,
+                            uint32_t buckets_scanned) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_gscan_full_result_internal_callback) {
+        on_gscan_full_result_internal_callback(id, result, buckets_scanned);
+    }
+}
+
+// Callback to be invoked for link layer stats results.
+std::function<void((wifi_request_id, wifi_iface_stat*, int, wifi_radio_stat*))>
+    on_link_layer_stats_result_internal_callback;
+void onSyncLinkLayerStatsResult(wifi_request_id id, wifi_iface_stat* iface_stat,
+                                int num_radios, wifi_radio_stat* radio_stat) {
+    if (on_link_layer_stats_result_internal_callback) {
+        on_link_layer_stats_result_internal_callback(id, iface_stat, num_radios,
+                                                     radio_stat);
+    }
+}
+
+// Callback to be invoked for rssi threshold breach.
+std::function<void((wifi_request_id, uint8_t*, int8_t))>
+    on_rssi_threshold_breached_internal_callback;
+void onAsyncRssiThresholdBreached(wifi_request_id id, uint8_t* bssid,
+                                  int8_t rssi) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_rssi_threshold_breached_internal_callback) {
+        on_rssi_threshold_breached_internal_callback(id, bssid, rssi);
+    }
+}
+
+// Callback to be invoked for ring buffer data indication.
+std::function<void(char*, char*, int, wifi_ring_buffer_status*)>
+    on_ring_buffer_data_internal_callback;
+void onAsyncRingBufferData(char* ring_name, char* buffer, int buffer_size,
+                           wifi_ring_buffer_status* status) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_ring_buffer_data_internal_callback) {
+        on_ring_buffer_data_internal_callback(ring_name, buffer, buffer_size,
+                                              status);
+    }
+}
+
+// Callback to be invoked for error alert indication.
+std::function<void(wifi_request_id, char*, int, int)>
+    on_error_alert_internal_callback;
+void onAsyncErrorAlert(wifi_request_id id, char* buffer, int buffer_size,
+                       int err_code) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_error_alert_internal_callback) {
+        on_error_alert_internal_callback(id, buffer, buffer_size, err_code);
+    }
+}
+
+// Callback to be invoked for radio mode change indication.
+std::function<void(wifi_request_id, uint32_t, wifi_mac_info*)>
+    on_radio_mode_change_internal_callback;
+void onAsyncRadioModeChange(wifi_request_id id, uint32_t num_macs,
+                            wifi_mac_info* mac_infos) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_radio_mode_change_internal_callback) {
+        on_radio_mode_change_internal_callback(id, num_macs, mac_infos);
+    }
+}
+
+// Callback to be invoked for rtt results results.
+std::function<void(wifi_request_id, unsigned num_results,
+                   wifi_rtt_result* rtt_results[])>
+    on_rtt_results_internal_callback;
+void onAsyncRttResults(wifi_request_id id, unsigned num_results,
+                       wifi_rtt_result* rtt_results[]) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_rtt_results_internal_callback) {
+        on_rtt_results_internal_callback(id, num_results, rtt_results);
+        on_rtt_results_internal_callback = nullptr;
+    }
+}
+
+// Callbacks for the various NAN operations.
+// NOTE: These have very little conversions to perform before invoking the user
+// callbacks.
+// So, handle all of them here directly to avoid adding an unnecessary layer.
+std::function<void(transaction_id, const NanResponseMsg&)>
+    on_nan_notify_response_user_callback;
+void onAysncNanNotifyResponse(transaction_id id, NanResponseMsg* msg) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_notify_response_user_callback && msg) {
+        on_nan_notify_response_user_callback(id, *msg);
+    }
+}
+
+std::function<void(const NanPublishRepliedInd&)>
+    on_nan_event_publish_replied_user_callback;
+void onAysncNanEventPublishReplied(NanPublishRepliedInd* /* event */) {
+    LOG(ERROR) << "onAysncNanEventPublishReplied triggered";
+}
+
+std::function<void(const NanPublishTerminatedInd&)>
+    on_nan_event_publish_terminated_user_callback;
+void onAysncNanEventPublishTerminated(NanPublishTerminatedInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_publish_terminated_user_callback && event) {
+        on_nan_event_publish_terminated_user_callback(*event);
+    }
+}
+
+std::function<void(const NanMatchInd&)> on_nan_event_match_user_callback;
+void onAysncNanEventMatch(NanMatchInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_match_user_callback && event) {
+        on_nan_event_match_user_callback(*event);
+    }
+}
+
+std::function<void(const NanMatchExpiredInd&)>
+    on_nan_event_match_expired_user_callback;
+void onAysncNanEventMatchExpired(NanMatchExpiredInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_match_expired_user_callback && event) {
+        on_nan_event_match_expired_user_callback(*event);
+    }
+}
+
+std::function<void(const NanSubscribeTerminatedInd&)>
+    on_nan_event_subscribe_terminated_user_callback;
+void onAysncNanEventSubscribeTerminated(NanSubscribeTerminatedInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_subscribe_terminated_user_callback && event) {
+        on_nan_event_subscribe_terminated_user_callback(*event);
+    }
+}
+
+std::function<void(const NanFollowupInd&)> on_nan_event_followup_user_callback;
+void onAysncNanEventFollowup(NanFollowupInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_followup_user_callback && event) {
+        on_nan_event_followup_user_callback(*event);
+    }
+}
+
+std::function<void(const NanDiscEngEventInd&)>
+    on_nan_event_disc_eng_event_user_callback;
+void onAysncNanEventDiscEngEvent(NanDiscEngEventInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_disc_eng_event_user_callback && event) {
+        on_nan_event_disc_eng_event_user_callback(*event);
+    }
+}
+
+std::function<void(const NanDisabledInd&)> on_nan_event_disabled_user_callback;
+void onAysncNanEventDisabled(NanDisabledInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_disabled_user_callback && event) {
+        on_nan_event_disabled_user_callback(*event);
+    }
+}
+
+std::function<void(const NanTCAInd&)> on_nan_event_tca_user_callback;
+void onAysncNanEventTca(NanTCAInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_tca_user_callback && event) {
+        on_nan_event_tca_user_callback(*event);
+    }
+}
+
+std::function<void(const NanBeaconSdfPayloadInd&)>
+    on_nan_event_beacon_sdf_payload_user_callback;
+void onAysncNanEventBeaconSdfPayload(NanBeaconSdfPayloadInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_beacon_sdf_payload_user_callback && event) {
+        on_nan_event_beacon_sdf_payload_user_callback(*event);
+    }
+}
+
+std::function<void(const NanDataPathRequestInd&)>
+    on_nan_event_data_path_request_user_callback;
+void onAysncNanEventDataPathRequest(NanDataPathRequestInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_data_path_request_user_callback && event) {
+        on_nan_event_data_path_request_user_callback(*event);
+    }
+}
+std::function<void(const NanDataPathConfirmInd&)>
+    on_nan_event_data_path_confirm_user_callback;
+void onAysncNanEventDataPathConfirm(NanDataPathConfirmInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_data_path_confirm_user_callback && event) {
+        on_nan_event_data_path_confirm_user_callback(*event);
+    }
+}
+
+std::function<void(const NanDataPathEndInd&)>
+    on_nan_event_data_path_end_user_callback;
+void onAysncNanEventDataPathEnd(NanDataPathEndInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_data_path_end_user_callback && event) {
+        on_nan_event_data_path_end_user_callback(*event);
+    }
+}
+
+std::function<void(const NanTransmitFollowupInd&)>
+    on_nan_event_transmit_follow_up_user_callback;
+void onAysncNanEventTransmitFollowUp(NanTransmitFollowupInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_transmit_follow_up_user_callback && event) {
+        on_nan_event_transmit_follow_up_user_callback(*event);
+    }
+}
+
+std::function<void(const NanRangeRequestInd&)>
+    on_nan_event_range_request_user_callback;
+void onAysncNanEventRangeRequest(NanRangeRequestInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_range_request_user_callback && event) {
+        on_nan_event_range_request_user_callback(*event);
+    }
+}
+
+std::function<void(const NanRangeReportInd&)>
+    on_nan_event_range_report_user_callback;
+void onAysncNanEventRangeReport(NanRangeReportInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_range_report_user_callback && event) {
+        on_nan_event_range_report_user_callback(*event);
+    }
+}
+
+std::function<void(const NanDataPathScheduleUpdateInd&)>
+    on_nan_event_schedule_update_user_callback;
+void onAsyncNanEventScheduleUpdate(NanDataPathScheduleUpdateInd* event) {
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (on_nan_event_schedule_update_user_callback && event) {
+        on_nan_event_schedule_update_user_callback(*event);
+    }
+}
+// End of the free-standing "C" style callbacks.
+
+WifiLegacyHal::WifiLegacyHal()
+    : global_handle_(nullptr),
+      awaiting_event_loop_termination_(false),
+      is_started_(false) {}
+
+wifi_error WifiLegacyHal::initialize() {
+    LOG(DEBUG) << "Initialize legacy HAL";
+    // TODO: Add back the HAL Tool if we need to. All we need from the HAL tool
+    // for now is this function call which we can directly call.
+    if (!initHalFuncTableWithStubs(&global_func_table_)) {
+        LOG(ERROR)
+            << "Failed to initialize legacy hal function table with stubs";
+        return WIFI_ERROR_UNKNOWN;
+    }
+    wifi_error status = init_wifi_vendor_hal_func_table(&global_func_table_);
+    if (status != WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to initialize legacy hal function table";
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::start() {
+    // Ensure that we're starting in a good state.
+    CHECK(global_func_table_.wifi_initialize && !global_handle_ &&
+          iface_name_to_handle_.empty() && !awaiting_event_loop_termination_);
+    if (is_started_) {
+        LOG(DEBUG) << "Legacy HAL already started";
+        return WIFI_SUCCESS;
+    }
+    LOG(DEBUG) << "Waiting for the driver ready";
+    wifi_error status = global_func_table_.wifi_wait_for_driver_ready();
+    if (status == WIFI_ERROR_TIMED_OUT) {
+        LOG(ERROR) << "Timed out awaiting driver ready";
+        return status;
+    }
+    property_set(kDriverPropName, "ok");
+
+    LOG(DEBUG) << "Starting legacy HAL";
+    if (!iface_tool_.SetWifiUpState(true)) {
+        LOG(ERROR) << "Failed to set WiFi interface up";
+        return WIFI_ERROR_UNKNOWN;
+    }
+    status = global_func_table_.wifi_initialize(&global_handle_);
+    if (status != WIFI_SUCCESS || !global_handle_) {
+        LOG(ERROR) << "Failed to retrieve global handle";
+        return status;
+    }
+    std::thread(&WifiLegacyHal::runEventLoop, this).detach();
+    status = retrieveIfaceHandles();
+    if (status != WIFI_SUCCESS || iface_name_to_handle_.empty()) {
+        LOG(ERROR) << "Failed to retrieve wlan interface handle";
+        return status;
+    }
+    LOG(DEBUG) << "Legacy HAL start complete";
+    is_started_ = true;
+    return WIFI_SUCCESS;
+}
+
+wifi_error WifiLegacyHal::stop(
+    /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock,
+    const std::function<void()>& on_stop_complete_user_callback) {
+    if (!is_started_) {
+        LOG(DEBUG) << "Legacy HAL already stopped";
+        on_stop_complete_user_callback();
+        return WIFI_SUCCESS;
+    }
+    LOG(DEBUG) << "Stopping legacy HAL";
+    on_stop_complete_internal_callback = [on_stop_complete_user_callback,
+                                          this](wifi_handle handle) {
+        CHECK_EQ(global_handle_, handle) << "Handle mismatch";
+        LOG(INFO) << "Legacy HAL stop complete callback received";
+        // Invalidate all the internal pointers now that the HAL is
+        // stopped.
+        invalidate();
+        iface_tool_.SetWifiUpState(false);
+        on_stop_complete_user_callback();
+        is_started_ = false;
+    };
+    awaiting_event_loop_termination_ = true;
+    global_func_table_.wifi_cleanup(global_handle_, onAsyncStopComplete);
+    const auto status = stop_wait_cv_.wait_for(
+        *lock, std::chrono::milliseconds(kMaxStopCompleteWaitMs),
+        [this] { return !awaiting_event_loop_termination_; });
+    if (!status) {
+        LOG(ERROR) << "Legacy HAL stop failed or timed out";
+        return WIFI_ERROR_UNKNOWN;
+    }
+    LOG(DEBUG) << "Legacy HAL stop complete";
+    return WIFI_SUCCESS;
+}
+
+std::pair<wifi_error, std::string> WifiLegacyHal::getDriverVersion(
+    const std::string& iface_name) {
+    std::array<char, kMaxVersionStringLength> buffer;
+    buffer.fill(0);
+    wifi_error status = global_func_table_.wifi_get_driver_version(
+        getIfaceHandle(iface_name), buffer.data(), buffer.size());
+    return {status, buffer.data()};
+}
+
+std::pair<wifi_error, std::string> WifiLegacyHal::getFirmwareVersion(
+    const std::string& iface_name) {
+    std::array<char, kMaxVersionStringLength> buffer;
+    buffer.fill(0);
+    wifi_error status = global_func_table_.wifi_get_firmware_version(
+        getIfaceHandle(iface_name), buffer.data(), buffer.size());
+    return {status, buffer.data()};
+}
+
+std::pair<wifi_error, std::vector<uint8_t>>
+WifiLegacyHal::requestDriverMemoryDump(const std::string& iface_name) {
+    std::vector<uint8_t> driver_dump;
+    on_driver_memory_dump_internal_callback = [&driver_dump](char* buffer,
+                                                             int buffer_size) {
+        driver_dump.insert(driver_dump.end(),
+                           reinterpret_cast<uint8_t*>(buffer),
+                           reinterpret_cast<uint8_t*>(buffer) + buffer_size);
+    };
+    wifi_error status = global_func_table_.wifi_get_driver_memory_dump(
+        getIfaceHandle(iface_name), {onSyncDriverMemoryDump});
+    on_driver_memory_dump_internal_callback = nullptr;
+    return {status, std::move(driver_dump)};
+}
+
+std::pair<wifi_error, std::vector<uint8_t>>
+WifiLegacyHal::requestFirmwareMemoryDump(const std::string& iface_name) {
+    std::vector<uint8_t> firmware_dump;
+    on_firmware_memory_dump_internal_callback =
+        [&firmware_dump](char* buffer, int buffer_size) {
+            firmware_dump.insert(
+                firmware_dump.end(), reinterpret_cast<uint8_t*>(buffer),
+                reinterpret_cast<uint8_t*>(buffer) + buffer_size);
+        };
+    wifi_error status = global_func_table_.wifi_get_firmware_memory_dump(
+        getIfaceHandle(iface_name), {onSyncFirmwareMemoryDump});
+    on_firmware_memory_dump_internal_callback = nullptr;
+    return {status, std::move(firmware_dump)};
+}
+
+std::pair<wifi_error, uint32_t> WifiLegacyHal::getSupportedFeatureSet(
+    const std::string& iface_name) {
+    feature_set set;
+    static_assert(sizeof(set) == sizeof(uint32_t),
+                  "Some feature_flags can not be represented in output");
+    wifi_error status = global_func_table_.wifi_get_supported_feature_set(
+        getIfaceHandle(iface_name), &set);
+    return {status, static_cast<uint32_t>(set)};
+}
+
+std::pair<wifi_error, PacketFilterCapabilities>
+WifiLegacyHal::getPacketFilterCapabilities(const std::string& iface_name) {
+    PacketFilterCapabilities caps;
+    wifi_error status = global_func_table_.wifi_get_packet_filter_capabilities(
+        getIfaceHandle(iface_name), &caps.version, &caps.max_len);
+    return {status, caps};
+}
+
+wifi_error WifiLegacyHal::setPacketFilter(const std::string& iface_name,
+                                          const std::vector<uint8_t>& program) {
+    return global_func_table_.wifi_set_packet_filter(
+        getIfaceHandle(iface_name), program.data(), program.size());
+}
+
+std::pair<wifi_error, std::vector<uint8_t>>
+WifiLegacyHal::readApfPacketFilterData(const std::string& iface_name) {
+    PacketFilterCapabilities caps;
+    wifi_error status = global_func_table_.wifi_get_packet_filter_capabilities(
+        getIfaceHandle(iface_name), &caps.version, &caps.max_len);
+    if (status != WIFI_SUCCESS) {
+        return {status, {}};
+    }
+
+    // Size the buffer to read the entire program & work memory.
+    std::vector<uint8_t> buffer(caps.max_len);
+
+    status = global_func_table_.wifi_read_packet_filter(
+        getIfaceHandle(iface_name), /*src_offset=*/0, buffer.data(),
+        buffer.size());
+    return {status, move(buffer)};
+}
+
+std::pair<wifi_error, wifi_gscan_capabilities>
+WifiLegacyHal::getGscanCapabilities(const std::string& iface_name) {
+    wifi_gscan_capabilities caps;
+    wifi_error status = global_func_table_.wifi_get_gscan_capabilities(
+        getIfaceHandle(iface_name), &caps);
+    return {status, caps};
+}
+
+wifi_error WifiLegacyHal::startGscan(
+    const std::string& iface_name, wifi_request_id id,
+    const wifi_scan_cmd_params& params,
+    const std::function<void(wifi_request_id)>& on_failure_user_callback,
+    const on_gscan_results_callback& on_results_user_callback,
+    const on_gscan_full_result_callback& on_full_result_user_callback) {
+    // If there is already an ongoing background scan, reject new scan requests.
+    if (on_gscan_event_internal_callback ||
+        on_gscan_full_result_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+
+    // This callback will be used to either trigger |on_results_user_callback|
+    // or |on_failure_user_callback|.
+    on_gscan_event_internal_callback =
+        [iface_name, on_failure_user_callback, on_results_user_callback, this](
+            wifi_request_id id, wifi_scan_event event) {
+            switch (event) {
+                case WIFI_SCAN_RESULTS_AVAILABLE:
+                case WIFI_SCAN_THRESHOLD_NUM_SCANS:
+                case WIFI_SCAN_THRESHOLD_PERCENT: {
+                    wifi_error status;
+                    std::vector<wifi_cached_scan_results> cached_scan_results;
+                    std::tie(status, cached_scan_results) =
+                        getGscanCachedResults(iface_name);
+                    if (status == WIFI_SUCCESS) {
+                        on_results_user_callback(id, cached_scan_results);
+                        return;
+                    }
+                    FALLTHROUGH_INTENDED;
+                }
+                // Fall through if failed. Failure to retrieve cached scan
+                // results should trigger a background scan failure.
+                case WIFI_SCAN_FAILED:
+                    on_failure_user_callback(id);
+                    on_gscan_event_internal_callback = nullptr;
+                    on_gscan_full_result_internal_callback = nullptr;
+                    return;
+            }
+            LOG(FATAL) << "Unexpected gscan event received: " << event;
+        };
+
+    on_gscan_full_result_internal_callback = [on_full_result_user_callback](
+                                                 wifi_request_id id,
+                                                 wifi_scan_result* result,
+                                                 uint32_t buckets_scanned) {
+        if (result) {
+            on_full_result_user_callback(id, result, buckets_scanned);
+        }
+    };
+
+    wifi_scan_result_handler handler = {onAsyncGscanFullResult,
+                                        onAsyncGscanEvent};
+    wifi_error status = global_func_table_.wifi_start_gscan(
+        id, getIfaceHandle(iface_name), params, handler);
+    if (status != WIFI_SUCCESS) {
+        on_gscan_event_internal_callback = nullptr;
+        on_gscan_full_result_internal_callback = nullptr;
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::stopGscan(const std::string& iface_name,
+                                    wifi_request_id id) {
+    // If there is no an ongoing background scan, reject stop requests.
+    // TODO(b/32337212): This needs to be handled by the HIDL object because we
+    // need to return the NOT_STARTED error code.
+    if (!on_gscan_event_internal_callback &&
+        !on_gscan_full_result_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    wifi_error status =
+        global_func_table_.wifi_stop_gscan(id, getIfaceHandle(iface_name));
+    // If the request Id is wrong, don't stop the ongoing background scan. Any
+    // other error should be treated as the end of background scan.
+    if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
+        on_gscan_event_internal_callback = nullptr;
+        on_gscan_full_result_internal_callback = nullptr;
+    }
+    return status;
+}
+
+std::pair<wifi_error, std::vector<uint32_t>>
+WifiLegacyHal::getValidFrequenciesForBand(const std::string& iface_name,
+                                          wifi_band band) {
+    static_assert(sizeof(uint32_t) >= sizeof(wifi_channel),
+                  "Wifi Channel cannot be represented in output");
+    std::vector<uint32_t> freqs;
+    freqs.resize(kMaxGscanFrequenciesForBand);
+    int32_t num_freqs = 0;
+    wifi_error status = global_func_table_.wifi_get_valid_channels(
+        getIfaceHandle(iface_name), band, freqs.size(),
+        reinterpret_cast<wifi_channel*>(freqs.data()), &num_freqs);
+    CHECK(num_freqs >= 0 &&
+          static_cast<uint32_t>(num_freqs) <= kMaxGscanFrequenciesForBand);
+    freqs.resize(num_freqs);
+    return {status, std::move(freqs)};
+}
+
+wifi_error WifiLegacyHal::setDfsFlag(const std::string& iface_name,
+                                     bool dfs_on) {
+    return global_func_table_.wifi_set_nodfs_flag(getIfaceHandle(iface_name),
+                                                  dfs_on ? 0 : 1);
+}
+
+wifi_error WifiLegacyHal::enableLinkLayerStats(const std::string& iface_name,
+                                               bool debug) {
+    wifi_link_layer_params params;
+    params.mpdu_size_threshold = kLinkLayerStatsDataMpduSizeThreshold;
+    params.aggressive_statistics_gathering = debug;
+    return global_func_table_.wifi_set_link_stats(getIfaceHandle(iface_name),
+                                                  params);
+}
+
+wifi_error WifiLegacyHal::disableLinkLayerStats(const std::string& iface_name) {
+    // TODO: Do we care about these responses?
+    uint32_t clear_mask_rsp;
+    uint8_t stop_rsp;
+    return global_func_table_.wifi_clear_link_stats(
+        getIfaceHandle(iface_name), 0xFFFFFFFF, &clear_mask_rsp, 1, &stop_rsp);
+}
+
+std::pair<wifi_error, LinkLayerStats> WifiLegacyHal::getLinkLayerStats(
+    const std::string& iface_name) {
+    LinkLayerStats link_stats{};
+    LinkLayerStats* link_stats_ptr = &link_stats;
+
+    on_link_layer_stats_result_internal_callback =
+        [&link_stats_ptr](wifi_request_id /* id */,
+                          wifi_iface_stat* iface_stats_ptr, int num_radios,
+                          wifi_radio_stat* radio_stats_ptr) {
+            wifi_radio_stat* l_radio_stats_ptr;
+
+            if (iface_stats_ptr != nullptr) {
+                link_stats_ptr->iface = *iface_stats_ptr;
+                link_stats_ptr->iface.num_peers = 0;
+            } else {
+                LOG(ERROR) << "Invalid iface stats in link layer stats";
+            }
+            if (num_radios <= 0 || radio_stats_ptr == nullptr) {
+                LOG(ERROR) << "Invalid radio stats in link layer stats";
+                return;
+            }
+            l_radio_stats_ptr = radio_stats_ptr;
+            for (int i = 0; i < num_radios; i++) {
+                LinkLayerRadioStats radio;
+
+                radio.stats = *l_radio_stats_ptr;
+                // Copy over the tx level array to the separate vector.
+                if (l_radio_stats_ptr->num_tx_levels > 0 &&
+                    l_radio_stats_ptr->tx_time_per_levels != nullptr) {
+                    radio.tx_time_per_levels.assign(
+                        l_radio_stats_ptr->tx_time_per_levels,
+                        l_radio_stats_ptr->tx_time_per_levels +
+                            l_radio_stats_ptr->num_tx_levels);
+                }
+                radio.stats.num_tx_levels = 0;
+                radio.stats.tx_time_per_levels = nullptr;
+                /* Copy over the channel stat to separate vector */
+                if (l_radio_stats_ptr->num_channels > 0) {
+                    /* Copy the channel stats */
+                    radio.channel_stats.assign(
+                        l_radio_stats_ptr->channels,
+                        l_radio_stats_ptr->channels +
+                            l_radio_stats_ptr->num_channels);
+                }
+                link_stats_ptr->radios.push_back(radio);
+                l_radio_stats_ptr =
+                    (wifi_radio_stat*)((u8*)l_radio_stats_ptr +
+                                       sizeof(wifi_radio_stat) +
+                                       (sizeof(wifi_channel_stat) *
+                                        l_radio_stats_ptr->num_channels));
+            }
+        };
+
+    wifi_error status = global_func_table_.wifi_get_link_stats(
+        0, getIfaceHandle(iface_name), {onSyncLinkLayerStatsResult});
+    on_link_layer_stats_result_internal_callback = nullptr;
+    return {status, link_stats};
+}
+
+wifi_error WifiLegacyHal::startRssiMonitoring(
+    const std::string& iface_name, wifi_request_id id, int8_t max_rssi,
+    int8_t min_rssi,
+    const on_rssi_threshold_breached_callback&
+        on_threshold_breached_user_callback) {
+    if (on_rssi_threshold_breached_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    on_rssi_threshold_breached_internal_callback =
+        [on_threshold_breached_user_callback](wifi_request_id id,
+                                              uint8_t* bssid_ptr, int8_t rssi) {
+            if (!bssid_ptr) {
+                return;
+            }
+            std::array<uint8_t, 6> bssid_arr;
+            // |bssid_ptr| pointer is assumed to have 6 bytes for the mac
+            // address.
+            std::copy(bssid_ptr, bssid_ptr + 6, std::begin(bssid_arr));
+            on_threshold_breached_user_callback(id, bssid_arr, rssi);
+        };
+    wifi_error status = global_func_table_.wifi_start_rssi_monitoring(
+        id, getIfaceHandle(iface_name), max_rssi, min_rssi,
+        {onAsyncRssiThresholdBreached});
+    if (status != WIFI_SUCCESS) {
+        on_rssi_threshold_breached_internal_callback = nullptr;
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::stopRssiMonitoring(const std::string& iface_name,
+                                             wifi_request_id id) {
+    if (!on_rssi_threshold_breached_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    wifi_error status = global_func_table_.wifi_stop_rssi_monitoring(
+        id, getIfaceHandle(iface_name));
+    // If the request Id is wrong, don't stop the ongoing rssi monitoring. Any
+    // other error should be treated as the end of background scan.
+    if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
+        on_rssi_threshold_breached_internal_callback = nullptr;
+    }
+    return status;
+}
+
+std::pair<wifi_error, wifi_roaming_capabilities>
+WifiLegacyHal::getRoamingCapabilities(const std::string& iface_name) {
+    wifi_roaming_capabilities caps;
+    wifi_error status = global_func_table_.wifi_get_roaming_capabilities(
+        getIfaceHandle(iface_name), &caps);
+    return {status, caps};
+}
+
+wifi_error WifiLegacyHal::configureRoaming(const std::string& iface_name,
+                                           const wifi_roaming_config& config) {
+    wifi_roaming_config config_internal = config;
+    return global_func_table_.wifi_configure_roaming(getIfaceHandle(iface_name),
+                                                     &config_internal);
+}
+
+wifi_error WifiLegacyHal::enableFirmwareRoaming(const std::string& iface_name,
+                                                fw_roaming_state_t state) {
+    return global_func_table_.wifi_enable_firmware_roaming(
+        getIfaceHandle(iface_name), state);
+}
+
+wifi_error WifiLegacyHal::configureNdOffload(const std::string& iface_name,
+                                             bool enable) {
+    return global_func_table_.wifi_configure_nd_offload(
+        getIfaceHandle(iface_name), enable);
+}
+
+wifi_error WifiLegacyHal::startSendingOffloadedPacket(
+    const std::string& iface_name, uint32_t cmd_id,
+    const std::vector<uint8_t>& ip_packet_data,
+    const std::array<uint8_t, 6>& src_address,
+    const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms) {
+    std::vector<uint8_t> ip_packet_data_internal(ip_packet_data);
+    std::vector<uint8_t> src_address_internal(
+        src_address.data(), src_address.data() + src_address.size());
+    std::vector<uint8_t> dst_address_internal(
+        dst_address.data(), dst_address.data() + dst_address.size());
+    return global_func_table_.wifi_start_sending_offloaded_packet(
+        cmd_id, getIfaceHandle(iface_name), ip_packet_data_internal.data(),
+        ip_packet_data_internal.size(), src_address_internal.data(),
+        dst_address_internal.data(), period_in_ms);
+}
+
+wifi_error WifiLegacyHal::stopSendingOffloadedPacket(
+    const std::string& iface_name, uint32_t cmd_id) {
+    return global_func_table_.wifi_stop_sending_offloaded_packet(
+        cmd_id, getIfaceHandle(iface_name));
+}
+
+wifi_error WifiLegacyHal::setScanningMacOui(const std::string& iface_name,
+                                            const std::array<uint8_t, 3>& oui) {
+    std::vector<uint8_t> oui_internal(oui.data(), oui.data() + oui.size());
+    return global_func_table_.wifi_set_scanning_mac_oui(
+        getIfaceHandle(iface_name), oui_internal.data());
+}
+
+wifi_error WifiLegacyHal::selectTxPowerScenario(const std::string& iface_name,
+                                                wifi_power_scenario scenario) {
+    return global_func_table_.wifi_select_tx_power_scenario(
+        getIfaceHandle(iface_name), scenario);
+}
+
+wifi_error WifiLegacyHal::resetTxPowerScenario(const std::string& iface_name) {
+    return global_func_table_.wifi_reset_tx_power_scenario(
+        getIfaceHandle(iface_name));
+}
+
+wifi_error WifiLegacyHal::setLatencyMode(const std::string& iface_name,
+                                         wifi_latency_mode mode) {
+    return global_func_table_.wifi_set_latency_mode(getIfaceHandle(iface_name),
+                                                    mode);
+}
+
+std::pair<wifi_error, uint32_t> WifiLegacyHal::getLoggerSupportedFeatureSet(
+    const std::string& iface_name) {
+    uint32_t supported_feature_flags;
+    wifi_error status =
+        global_func_table_.wifi_get_logger_supported_feature_set(
+            getIfaceHandle(iface_name), &supported_feature_flags);
+    return {status, supported_feature_flags};
+}
+
+wifi_error WifiLegacyHal::startPktFateMonitoring(
+    const std::string& iface_name) {
+    return global_func_table_.wifi_start_pkt_fate_monitoring(
+        getIfaceHandle(iface_name));
+}
+
+std::pair<wifi_error, std::vector<wifi_tx_report>> WifiLegacyHal::getTxPktFates(
+    const std::string& iface_name) {
+    std::vector<wifi_tx_report> tx_pkt_fates;
+    tx_pkt_fates.resize(MAX_FATE_LOG_LEN);
+    size_t num_fates = 0;
+    wifi_error status = global_func_table_.wifi_get_tx_pkt_fates(
+        getIfaceHandle(iface_name), tx_pkt_fates.data(), tx_pkt_fates.size(),
+        &num_fates);
+    CHECK(num_fates <= MAX_FATE_LOG_LEN);
+    tx_pkt_fates.resize(num_fates);
+    return {status, std::move(tx_pkt_fates)};
+}
+
+std::pair<wifi_error, std::vector<wifi_rx_report>> WifiLegacyHal::getRxPktFates(
+    const std::string& iface_name) {
+    std::vector<wifi_rx_report> rx_pkt_fates;
+    rx_pkt_fates.resize(MAX_FATE_LOG_LEN);
+    size_t num_fates = 0;
+    wifi_error status = global_func_table_.wifi_get_rx_pkt_fates(
+        getIfaceHandle(iface_name), rx_pkt_fates.data(), rx_pkt_fates.size(),
+        &num_fates);
+    CHECK(num_fates <= MAX_FATE_LOG_LEN);
+    rx_pkt_fates.resize(num_fates);
+    return {status, std::move(rx_pkt_fates)};
+}
+
+std::pair<wifi_error, WakeReasonStats> WifiLegacyHal::getWakeReasonStats(
+    const std::string& iface_name) {
+    WakeReasonStats stats;
+    stats.cmd_event_wake_cnt.resize(kMaxWakeReasonStatsArraySize);
+    stats.driver_fw_local_wake_cnt.resize(kMaxWakeReasonStatsArraySize);
+
+    // This legacy struct needs separate memory to store the variable sized wake
+    // reason types.
+    stats.wake_reason_cnt.cmd_event_wake_cnt =
+        reinterpret_cast<int32_t*>(stats.cmd_event_wake_cnt.data());
+    stats.wake_reason_cnt.cmd_event_wake_cnt_sz =
+        stats.cmd_event_wake_cnt.size();
+    stats.wake_reason_cnt.cmd_event_wake_cnt_used = 0;
+    stats.wake_reason_cnt.driver_fw_local_wake_cnt =
+        reinterpret_cast<int32_t*>(stats.driver_fw_local_wake_cnt.data());
+    stats.wake_reason_cnt.driver_fw_local_wake_cnt_sz =
+        stats.driver_fw_local_wake_cnt.size();
+    stats.wake_reason_cnt.driver_fw_local_wake_cnt_used = 0;
+
+    wifi_error status = global_func_table_.wifi_get_wake_reason_stats(
+        getIfaceHandle(iface_name), &stats.wake_reason_cnt);
+
+    CHECK(
+        stats.wake_reason_cnt.cmd_event_wake_cnt_used >= 0 &&
+        static_cast<uint32_t>(stats.wake_reason_cnt.cmd_event_wake_cnt_used) <=
+            kMaxWakeReasonStatsArraySize);
+    stats.cmd_event_wake_cnt.resize(
+        stats.wake_reason_cnt.cmd_event_wake_cnt_used);
+    stats.wake_reason_cnt.cmd_event_wake_cnt = nullptr;
+
+    CHECK(stats.wake_reason_cnt.driver_fw_local_wake_cnt_used >= 0 &&
+          static_cast<uint32_t>(
+              stats.wake_reason_cnt.driver_fw_local_wake_cnt_used) <=
+              kMaxWakeReasonStatsArraySize);
+    stats.driver_fw_local_wake_cnt.resize(
+        stats.wake_reason_cnt.driver_fw_local_wake_cnt_used);
+    stats.wake_reason_cnt.driver_fw_local_wake_cnt = nullptr;
+
+    return {status, stats};
+}
+
+wifi_error WifiLegacyHal::registerRingBufferCallbackHandler(
+    const std::string& iface_name,
+    const on_ring_buffer_data_callback& on_user_data_callback) {
+    if (on_ring_buffer_data_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    on_ring_buffer_data_internal_callback =
+        [on_user_data_callback](char* ring_name, char* buffer, int buffer_size,
+                                wifi_ring_buffer_status* status) {
+            if (status && buffer) {
+                std::vector<uint8_t> buffer_vector(
+                    reinterpret_cast<uint8_t*>(buffer),
+                    reinterpret_cast<uint8_t*>(buffer) + buffer_size);
+                on_user_data_callback(ring_name, buffer_vector, *status);
+            }
+        };
+    wifi_error status = global_func_table_.wifi_set_log_handler(
+        0, getIfaceHandle(iface_name), {onAsyncRingBufferData});
+    if (status != WIFI_SUCCESS) {
+        on_ring_buffer_data_internal_callback = nullptr;
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::deregisterRingBufferCallbackHandler(
+    const std::string& iface_name) {
+    if (!on_ring_buffer_data_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    on_ring_buffer_data_internal_callback = nullptr;
+    return global_func_table_.wifi_reset_log_handler(
+        0, getIfaceHandle(iface_name));
+}
+
+std::pair<wifi_error, std::vector<wifi_ring_buffer_status>>
+WifiLegacyHal::getRingBuffersStatus(const std::string& iface_name) {
+    std::vector<wifi_ring_buffer_status> ring_buffers_status;
+    ring_buffers_status.resize(kMaxRingBuffers);
+    uint32_t num_rings = kMaxRingBuffers;
+    wifi_error status = global_func_table_.wifi_get_ring_buffers_status(
+        getIfaceHandle(iface_name), &num_rings, ring_buffers_status.data());
+    CHECK(num_rings <= kMaxRingBuffers);
+    ring_buffers_status.resize(num_rings);
+    return {status, std::move(ring_buffers_status)};
+}
+
+wifi_error WifiLegacyHal::startRingBufferLogging(const std::string& iface_name,
+                                                 const std::string& ring_name,
+                                                 uint32_t verbose_level,
+                                                 uint32_t max_interval_sec,
+                                                 uint32_t min_data_size) {
+    return global_func_table_.wifi_start_logging(
+        getIfaceHandle(iface_name), verbose_level, 0, max_interval_sec,
+        min_data_size, makeCharVec(ring_name).data());
+}
+
+wifi_error WifiLegacyHal::getRingBufferData(const std::string& iface_name,
+                                            const std::string& ring_name) {
+    return global_func_table_.wifi_get_ring_data(getIfaceHandle(iface_name),
+                                                 makeCharVec(ring_name).data());
+}
+
+wifi_error WifiLegacyHal::registerErrorAlertCallbackHandler(
+    const std::string& iface_name,
+    const on_error_alert_callback& on_user_alert_callback) {
+    if (on_error_alert_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    on_error_alert_internal_callback = [on_user_alert_callback](
+                                           wifi_request_id id, char* buffer,
+                                           int buffer_size, int err_code) {
+        if (buffer) {
+            CHECK(id == 0);
+            on_user_alert_callback(
+                err_code,
+                std::vector<uint8_t>(
+                    reinterpret_cast<uint8_t*>(buffer),
+                    reinterpret_cast<uint8_t*>(buffer) + buffer_size));
+        }
+    };
+    wifi_error status = global_func_table_.wifi_set_alert_handler(
+        0, getIfaceHandle(iface_name), {onAsyncErrorAlert});
+    if (status != WIFI_SUCCESS) {
+        on_error_alert_internal_callback = nullptr;
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::deregisterErrorAlertCallbackHandler(
+    const std::string& iface_name) {
+    if (!on_error_alert_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    on_error_alert_internal_callback = nullptr;
+    return global_func_table_.wifi_reset_alert_handler(
+        0, getIfaceHandle(iface_name));
+}
+
+wifi_error WifiLegacyHal::registerRadioModeChangeCallbackHandler(
+    const std::string& iface_name,
+    const on_radio_mode_change_callback& on_user_change_callback) {
+    if (on_radio_mode_change_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    on_radio_mode_change_internal_callback = [on_user_change_callback](
+                                                 wifi_request_id /* id */,
+                                                 uint32_t num_macs,
+                                                 wifi_mac_info* mac_infos_arr) {
+        if (num_macs > 0 && mac_infos_arr) {
+            std::vector<WifiMacInfo> mac_infos_vec;
+            for (uint32_t i = 0; i < num_macs; i++) {
+                WifiMacInfo mac_info;
+                mac_info.wlan_mac_id = mac_infos_arr[i].wlan_mac_id;
+                mac_info.mac_band = mac_infos_arr[i].mac_band;
+                for (int32_t j = 0; j < mac_infos_arr[i].num_iface; j++) {
+                    WifiIfaceInfo iface_info;
+                    iface_info.name = mac_infos_arr[i].iface_info[j].iface_name;
+                    iface_info.channel = mac_infos_arr[i].iface_info[j].channel;
+                    mac_info.iface_infos.push_back(iface_info);
+                }
+                mac_infos_vec.push_back(mac_info);
+            }
+            on_user_change_callback(mac_infos_vec);
+        }
+    };
+    wifi_error status = global_func_table_.wifi_set_radio_mode_change_handler(
+        0, getIfaceHandle(iface_name), {onAsyncRadioModeChange});
+    if (status != WIFI_SUCCESS) {
+        on_radio_mode_change_internal_callback = nullptr;
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::startRttRangeRequest(
+    const std::string& iface_name, wifi_request_id id,
+    const std::vector<wifi_rtt_config>& rtt_configs,
+    const on_rtt_results_callback& on_results_user_callback) {
+    if (on_rtt_results_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+
+    on_rtt_results_internal_callback =
+        [on_results_user_callback](wifi_request_id id, unsigned num_results,
+                                   wifi_rtt_result* rtt_results[]) {
+            if (num_results > 0 && !rtt_results) {
+                LOG(ERROR) << "Unexpected nullptr in RTT results";
+                return;
+            }
+            std::vector<const wifi_rtt_result*> rtt_results_vec;
+            std::copy_if(rtt_results, rtt_results + num_results,
+                         back_inserter(rtt_results_vec),
+                         [](wifi_rtt_result* rtt_result) {
+                             return rtt_result != nullptr;
+                         });
+            on_results_user_callback(id, rtt_results_vec);
+        };
+
+    std::vector<wifi_rtt_config> rtt_configs_internal(rtt_configs);
+    wifi_error status = global_func_table_.wifi_rtt_range_request(
+        id, getIfaceHandle(iface_name), rtt_configs.size(),
+        rtt_configs_internal.data(), {onAsyncRttResults});
+    if (status != WIFI_SUCCESS) {
+        on_rtt_results_internal_callback = nullptr;
+    }
+    return status;
+}
+
+wifi_error WifiLegacyHal::cancelRttRangeRequest(
+    const std::string& iface_name, wifi_request_id id,
+    const std::vector<std::array<uint8_t, 6>>& mac_addrs) {
+    if (!on_rtt_results_internal_callback) {
+        return WIFI_ERROR_NOT_AVAILABLE;
+    }
+    static_assert(sizeof(mac_addr) == sizeof(std::array<uint8_t, 6>),
+                  "MAC address size mismatch");
+    // TODO: How do we handle partial cancels (i.e only a subset of enabled mac
+    // addressed are cancelled).
+    std::vector<std::array<uint8_t, 6>> mac_addrs_internal(mac_addrs);
+    wifi_error status = global_func_table_.wifi_rtt_range_cancel(
+        id, getIfaceHandle(iface_name), mac_addrs.size(),
+        reinterpret_cast<mac_addr*>(mac_addrs_internal.data()));
+    // If the request Id is wrong, don't stop the ongoing range request. Any
+    // other error should be treated as the end of rtt ranging.
+    if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
+        on_rtt_results_internal_callback = nullptr;
+    }
+    return status;
+}
+
+std::pair<wifi_error, wifi_rtt_capabilities> WifiLegacyHal::getRttCapabilities(
+    const std::string& iface_name) {
+    wifi_rtt_capabilities rtt_caps;
+    wifi_error status = global_func_table_.wifi_get_rtt_capabilities(
+        getIfaceHandle(iface_name), &rtt_caps);
+    return {status, rtt_caps};
+}
+
+std::pair<wifi_error, wifi_rtt_responder> WifiLegacyHal::getRttResponderInfo(
+    const std::string& iface_name) {
+    wifi_rtt_responder rtt_responder;
+    wifi_error status = global_func_table_.wifi_rtt_get_responder_info(
+        getIfaceHandle(iface_name), &rtt_responder);
+    return {status, rtt_responder};
+}
+
+wifi_error WifiLegacyHal::enableRttResponder(
+    const std::string& iface_name, wifi_request_id id,
+    const wifi_channel_info& channel_hint, uint32_t max_duration_secs,
+    const wifi_rtt_responder& info) {
+    wifi_rtt_responder info_internal(info);
+    return global_func_table_.wifi_enable_responder(
+        id, getIfaceHandle(iface_name), channel_hint, max_duration_secs,
+        &info_internal);
+}
+
+wifi_error WifiLegacyHal::disableRttResponder(const std::string& iface_name,
+                                              wifi_request_id id) {
+    return global_func_table_.wifi_disable_responder(
+        id, getIfaceHandle(iface_name));
+}
+
+wifi_error WifiLegacyHal::setRttLci(const std::string& iface_name,
+                                    wifi_request_id id,
+                                    const wifi_lci_information& info) {
+    wifi_lci_information info_internal(info);
+    return global_func_table_.wifi_set_lci(id, getIfaceHandle(iface_name),
+                                           &info_internal);
+}
+
+wifi_error WifiLegacyHal::setRttLcr(const std::string& iface_name,
+                                    wifi_request_id id,
+                                    const wifi_lcr_information& info) {
+    wifi_lcr_information info_internal(info);
+    return global_func_table_.wifi_set_lcr(id, getIfaceHandle(iface_name),
+                                           &info_internal);
+}
+
+wifi_error WifiLegacyHal::nanRegisterCallbackHandlers(
+    const std::string& iface_name, const NanCallbackHandlers& user_callbacks) {
+    on_nan_notify_response_user_callback = user_callbacks.on_notify_response;
+    on_nan_event_publish_terminated_user_callback =
+        user_callbacks.on_event_publish_terminated;
+    on_nan_event_match_user_callback = user_callbacks.on_event_match;
+    on_nan_event_match_expired_user_callback =
+        user_callbacks.on_event_match_expired;
+    on_nan_event_subscribe_terminated_user_callback =
+        user_callbacks.on_event_subscribe_terminated;
+    on_nan_event_followup_user_callback = user_callbacks.on_event_followup;
+    on_nan_event_disc_eng_event_user_callback =
+        user_callbacks.on_event_disc_eng_event;
+    on_nan_event_disabled_user_callback = user_callbacks.on_event_disabled;
+    on_nan_event_tca_user_callback = user_callbacks.on_event_tca;
+    on_nan_event_beacon_sdf_payload_user_callback =
+        user_callbacks.on_event_beacon_sdf_payload;
+    on_nan_event_data_path_request_user_callback =
+        user_callbacks.on_event_data_path_request;
+    on_nan_event_data_path_confirm_user_callback =
+        user_callbacks.on_event_data_path_confirm;
+    on_nan_event_data_path_end_user_callback =
+        user_callbacks.on_event_data_path_end;
+    on_nan_event_transmit_follow_up_user_callback =
+        user_callbacks.on_event_transmit_follow_up;
+    on_nan_event_range_request_user_callback =
+        user_callbacks.on_event_range_request;
+    on_nan_event_range_report_user_callback =
+        user_callbacks.on_event_range_report;
+    on_nan_event_schedule_update_user_callback =
+        user_callbacks.on_event_schedule_update;
+
+    return global_func_table_.wifi_nan_register_handler(
+        getIfaceHandle(iface_name),
+        {onAysncNanNotifyResponse, onAysncNanEventPublishReplied,
+         onAysncNanEventPublishTerminated, onAysncNanEventMatch,
+         onAysncNanEventMatchExpired, onAysncNanEventSubscribeTerminated,
+         onAysncNanEventFollowup, onAysncNanEventDiscEngEvent,
+         onAysncNanEventDisabled, onAysncNanEventTca,
+         onAysncNanEventBeaconSdfPayload, onAysncNanEventDataPathRequest,
+         onAysncNanEventDataPathConfirm, onAysncNanEventDataPathEnd,
+         onAysncNanEventTransmitFollowUp, onAysncNanEventRangeRequest,
+         onAysncNanEventRangeReport, onAsyncNanEventScheduleUpdate});
+}
+
+wifi_error WifiLegacyHal::nanEnableRequest(const std::string& iface_name,
+                                           transaction_id id,
+                                           const NanEnableRequest& msg) {
+    NanEnableRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_enable_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanDisableRequest(const std::string& iface_name,
+                                            transaction_id id) {
+    return global_func_table_.wifi_nan_disable_request(
+        id, getIfaceHandle(iface_name));
+}
+
+wifi_error WifiLegacyHal::nanPublishRequest(const std::string& iface_name,
+                                            transaction_id id,
+                                            const NanPublishRequest& msg) {
+    NanPublishRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_publish_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanPublishCancelRequest(
+    const std::string& iface_name, transaction_id id,
+    const NanPublishCancelRequest& msg) {
+    NanPublishCancelRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_publish_cancel_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanSubscribeRequest(const std::string& iface_name,
+                                              transaction_id id,
+                                              const NanSubscribeRequest& msg) {
+    NanSubscribeRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_subscribe_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanSubscribeCancelRequest(
+    const std::string& iface_name, transaction_id id,
+    const NanSubscribeCancelRequest& msg) {
+    NanSubscribeCancelRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_subscribe_cancel_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanTransmitFollowupRequest(
+    const std::string& iface_name, transaction_id id,
+    const NanTransmitFollowupRequest& msg) {
+    NanTransmitFollowupRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_transmit_followup_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanStatsRequest(const std::string& iface_name,
+                                          transaction_id id,
+                                          const NanStatsRequest& msg) {
+    NanStatsRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_stats_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanConfigRequest(const std::string& iface_name,
+                                           transaction_id id,
+                                           const NanConfigRequest& msg) {
+    NanConfigRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_config_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanTcaRequest(const std::string& iface_name,
+                                        transaction_id id,
+                                        const NanTCARequest& msg) {
+    NanTCARequest msg_internal(msg);
+    return global_func_table_.wifi_nan_tca_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanBeaconSdfPayloadRequest(
+    const std::string& iface_name, transaction_id id,
+    const NanBeaconSdfPayloadRequest& msg) {
+    NanBeaconSdfPayloadRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_beacon_sdf_payload_request(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+std::pair<wifi_error, NanVersion> WifiLegacyHal::nanGetVersion() {
+    NanVersion version;
+    wifi_error status =
+        global_func_table_.wifi_nan_get_version(global_handle_, &version);
+    return {status, version};
+}
+
+wifi_error WifiLegacyHal::nanGetCapabilities(const std::string& iface_name,
+                                             transaction_id id) {
+    return global_func_table_.wifi_nan_get_capabilities(
+        id, getIfaceHandle(iface_name));
+}
+
+wifi_error WifiLegacyHal::nanDataInterfaceCreate(
+    const std::string& iface_name, transaction_id id,
+    const std::string& data_iface_name) {
+    return global_func_table_.wifi_nan_data_interface_create(
+        id, getIfaceHandle(iface_name), makeCharVec(data_iface_name).data());
+}
+
+wifi_error WifiLegacyHal::nanDataInterfaceDelete(
+    const std::string& iface_name, transaction_id id,
+    const std::string& data_iface_name) {
+    return global_func_table_.wifi_nan_data_interface_delete(
+        id, getIfaceHandle(iface_name), makeCharVec(data_iface_name).data());
+}
+
+wifi_error WifiLegacyHal::nanDataRequestInitiator(
+    const std::string& iface_name, transaction_id id,
+    const NanDataPathInitiatorRequest& msg) {
+    NanDataPathInitiatorRequest msg_internal(msg);
+    return global_func_table_.wifi_nan_data_request_initiator(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanDataIndicationResponse(
+    const std::string& iface_name, transaction_id id,
+    const NanDataPathIndicationResponse& msg) {
+    NanDataPathIndicationResponse msg_internal(msg);
+    return global_func_table_.wifi_nan_data_indication_response(
+        id, getIfaceHandle(iface_name), &msg_internal);
+}
+
+typedef struct {
+    u8 num_ndp_instances;
+    NanDataPathId ndp_instance_id;
+} NanDataPathEndSingleNdpIdRequest;
+
+wifi_error WifiLegacyHal::nanDataEnd(const std::string& iface_name,
+                                     transaction_id id,
+                                     uint32_t ndpInstanceId) {
+    NanDataPathEndSingleNdpIdRequest msg;
+    msg.num_ndp_instances = 1;
+    msg.ndp_instance_id = ndpInstanceId;
+    wifi_error status = global_func_table_.wifi_nan_data_end(
+        id, getIfaceHandle(iface_name), (NanDataPathEndRequest*)&msg);
+    return status;
+}
+
+wifi_error WifiLegacyHal::setCountryCode(const std::string& iface_name,
+                                         std::array<int8_t, 2> code) {
+    std::string code_str(code.data(), code.data() + code.size());
+    return global_func_table_.wifi_set_country_code(getIfaceHandle(iface_name),
+                                                    code_str.c_str());
+}
+
+wifi_error WifiLegacyHal::retrieveIfaceHandles() {
+    wifi_interface_handle* iface_handles = nullptr;
+    int num_iface_handles = 0;
+    wifi_error status = global_func_table_.wifi_get_ifaces(
+        global_handle_, &num_iface_handles, &iface_handles);
+    if (status != WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to enumerate interface handles";
+        return status;
+    }
+    for (int i = 0; i < num_iface_handles; ++i) {
+        std::array<char, IFNAMSIZ> iface_name_arr = {};
+        status = global_func_table_.wifi_get_iface_name(
+            iface_handles[i], iface_name_arr.data(), iface_name_arr.size());
+        if (status != WIFI_SUCCESS) {
+            LOG(WARNING) << "Failed to get interface handle name";
+            continue;
+        }
+        // Assuming the interface name is null terminated since the legacy HAL
+        // API does not return a size.
+        std::string iface_name(iface_name_arr.data());
+        LOG(INFO) << "Adding interface handle for " << iface_name;
+        iface_name_to_handle_[iface_name] = iface_handles[i];
+    }
+    return WIFI_SUCCESS;
+}
+
+wifi_interface_handle WifiLegacyHal::getIfaceHandle(
+    const std::string& iface_name) {
+    const auto iface_handle_iter = iface_name_to_handle_.find(iface_name);
+    if (iface_handle_iter == iface_name_to_handle_.end()) {
+        LOG(ERROR) << "Unknown iface name: " << iface_name;
+        return nullptr;
+    }
+    return iface_handle_iter->second;
+}
+
+void WifiLegacyHal::runEventLoop() {
+    LOG(DEBUG) << "Starting legacy HAL event loop";
+    global_func_table_.wifi_event_loop(global_handle_);
+    const auto lock = hidl_sync_util::acquireGlobalLock();
+    if (!awaiting_event_loop_termination_) {
+        LOG(FATAL)
+            << "Legacy HAL event loop terminated, but HAL was not stopping";
+    }
+    LOG(DEBUG) << "Legacy HAL event loop terminated";
+    awaiting_event_loop_termination_ = false;
+    stop_wait_cv_.notify_one();
+}
+
+std::pair<wifi_error, std::vector<wifi_cached_scan_results>>
+WifiLegacyHal::getGscanCachedResults(const std::string& iface_name) {
+    std::vector<wifi_cached_scan_results> cached_scan_results;
+    cached_scan_results.resize(kMaxCachedGscanResults);
+    int32_t num_results = 0;
+    wifi_error status = global_func_table_.wifi_get_cached_gscan_results(
+        getIfaceHandle(iface_name), true /* always flush */,
+        cached_scan_results.size(), cached_scan_results.data(), &num_results);
+    CHECK(num_results >= 0 &&
+          static_cast<uint32_t>(num_results) <= kMaxCachedGscanResults);
+    cached_scan_results.resize(num_results);
+    // Check for invalid IE lengths in these cached scan results and correct it.
+    for (auto& cached_scan_result : cached_scan_results) {
+        int num_scan_results = cached_scan_result.num_results;
+        for (int i = 0; i < num_scan_results; i++) {
+            auto& scan_result = cached_scan_result.results[i];
+            if (scan_result.ie_length > 0) {
+                LOG(DEBUG) << "Cached scan result has non-zero IE length "
+                           << scan_result.ie_length;
+                scan_result.ie_length = 0;
+            }
+        }
+    }
+    return {status, std::move(cached_scan_results)};
+}
+
+void WifiLegacyHal::invalidate() {
+    global_handle_ = nullptr;
+    iface_name_to_handle_.clear();
+    on_driver_memory_dump_internal_callback = nullptr;
+    on_firmware_memory_dump_internal_callback = nullptr;
+    on_gscan_event_internal_callback = nullptr;
+    on_gscan_full_result_internal_callback = nullptr;
+    on_link_layer_stats_result_internal_callback = nullptr;
+    on_rssi_threshold_breached_internal_callback = nullptr;
+    on_ring_buffer_data_internal_callback = nullptr;
+    on_error_alert_internal_callback = nullptr;
+    on_radio_mode_change_internal_callback = nullptr;
+    on_rtt_results_internal_callback = nullptr;
+    on_nan_notify_response_user_callback = nullptr;
+    on_nan_event_publish_terminated_user_callback = nullptr;
+    on_nan_event_match_user_callback = nullptr;
+    on_nan_event_match_expired_user_callback = nullptr;
+    on_nan_event_subscribe_terminated_user_callback = nullptr;
+    on_nan_event_followup_user_callback = nullptr;
+    on_nan_event_disc_eng_event_user_callback = nullptr;
+    on_nan_event_disabled_user_callback = nullptr;
+    on_nan_event_tca_user_callback = nullptr;
+    on_nan_event_beacon_sdf_payload_user_callback = nullptr;
+    on_nan_event_data_path_request_user_callback = nullptr;
+    on_nan_event_data_path_confirm_user_callback = nullptr;
+    on_nan_event_data_path_end_user_callback = nullptr;
+    on_nan_event_transmit_follow_up_user_callback = nullptr;
+    on_nan_event_range_request_user_callback = nullptr;
+    on_nan_event_range_report_user_callback = nullptr;
+    on_nan_event_schedule_update_user_callback = nullptr;
+}
+
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_legacy_hal.h b/wifi/1.3/default/wifi_legacy_hal.h
new file mode 100644
index 0000000..d6f05ae
--- /dev/null
+++ b/wifi/1.3/default/wifi_legacy_hal.h
@@ -0,0 +1,402 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_LEGACY_HAL_H_
+#define WIFI_LEGACY_HAL_H_
+
+#include <condition_variable>
+#include <functional>
+#include <map>
+#include <thread>
+#include <vector>
+
+#include <wifi_system/interface_tool.h>
+
+// HACK: The include inside the namespace below also transitively includes a
+// bunch of libc headers into the namespace, which leads to functions like
+// socketpair being defined in
+// android::hardware::wifi::V1_1::implementation::legacy_hal. Include this one
+// particular header as a hacky workaround until that's fixed.
+#include <sys/socket.h>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+// This is in a separate namespace to prevent typename conflicts between
+// the legacy HAL types and the HIDL interface types.
+namespace legacy_hal {
+// Wrap all the types defined inside the legacy HAL header files inside this
+// namespace.
+#include <hardware_legacy/wifi_hal.h>
+
+// APF capabilities supported by the iface.
+struct PacketFilterCapabilities {
+    uint32_t version;
+    uint32_t max_len;
+};
+
+// WARNING: We don't care about the variable sized members of either
+// |wifi_iface_stat|, |wifi_radio_stat| structures. So, using the pragma
+// to escape the compiler warnings regarding this.
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wgnu-variable-sized-type-not-at-end"
+// The |wifi_radio_stat.tx_time_per_levels| stats is provided as a pointer in
+// |wifi_radio_stat| structure in the legacy HAL API. Separate that out
+// into a separate return element to avoid passing pointers around.
+struct LinkLayerRadioStats {
+    wifi_radio_stat stats;
+    std::vector<uint32_t> tx_time_per_levels;
+    std::vector<wifi_channel_stat> channel_stats;
+};
+
+struct LinkLayerStats {
+    wifi_iface_stat iface;
+    std::vector<LinkLayerRadioStats> radios;
+};
+#pragma GCC diagnostic pop
+
+// The |WLAN_DRIVER_WAKE_REASON_CNT.cmd_event_wake_cnt| and
+// |WLAN_DRIVER_WAKE_REASON_CNT.driver_fw_local_wake_cnt| stats is provided
+// as a pointer in |WLAN_DRIVER_WAKE_REASON_CNT| structure in the legacy HAL
+// API. Separate that out into a separate return elements to avoid passing
+// pointers around.
+struct WakeReasonStats {
+    WLAN_DRIVER_WAKE_REASON_CNT wake_reason_cnt;
+    std::vector<uint32_t> cmd_event_wake_cnt;
+    std::vector<uint32_t> driver_fw_local_wake_cnt;
+};
+
+// NAN response and event callbacks struct.
+struct NanCallbackHandlers {
+    // NotifyResponse invoked to notify the status of the Request.
+    std::function<void(transaction_id, const NanResponseMsg&)>
+        on_notify_response;
+    // Various event callbacks.
+    std::function<void(const NanPublishTerminatedInd&)>
+        on_event_publish_terminated;
+    std::function<void(const NanMatchInd&)> on_event_match;
+    std::function<void(const NanMatchExpiredInd&)> on_event_match_expired;
+    std::function<void(const NanSubscribeTerminatedInd&)>
+        on_event_subscribe_terminated;
+    std::function<void(const NanFollowupInd&)> on_event_followup;
+    std::function<void(const NanDiscEngEventInd&)> on_event_disc_eng_event;
+    std::function<void(const NanDisabledInd&)> on_event_disabled;
+    std::function<void(const NanTCAInd&)> on_event_tca;
+    std::function<void(const NanBeaconSdfPayloadInd&)>
+        on_event_beacon_sdf_payload;
+    std::function<void(const NanDataPathRequestInd&)>
+        on_event_data_path_request;
+    std::function<void(const NanDataPathConfirmInd&)>
+        on_event_data_path_confirm;
+    std::function<void(const NanDataPathEndInd&)> on_event_data_path_end;
+    std::function<void(const NanTransmitFollowupInd&)>
+        on_event_transmit_follow_up;
+    std::function<void(const NanRangeRequestInd&)> on_event_range_request;
+    std::function<void(const NanRangeReportInd&)> on_event_range_report;
+    std::function<void(const NanDataPathScheduleUpdateInd&)>
+        on_event_schedule_update;
+};
+
+// Full scan results contain IE info and are hence passed by reference, to
+// preserve the variable length array member |ie_data|. Callee must not retain
+// the pointer.
+using on_gscan_full_result_callback =
+    std::function<void(wifi_request_id, const wifi_scan_result*, uint32_t)>;
+// These scan results don't contain any IE info, so no need to pass by
+// reference.
+using on_gscan_results_callback = std::function<void(
+    wifi_request_id, const std::vector<wifi_cached_scan_results>&)>;
+
+// Invoked when the rssi value breaches the thresholds set.
+using on_rssi_threshold_breached_callback =
+    std::function<void(wifi_request_id, std::array<uint8_t, 6>, int8_t)>;
+
+// Callback for RTT range request results.
+// Rtt results contain IE info and are hence passed by reference, to
+// preserve the |LCI| and |LCR| pointers. Callee must not retain
+// the pointer.
+using on_rtt_results_callback = std::function<void(
+    wifi_request_id, const std::vector<const wifi_rtt_result*>&)>;
+
+// Callback for ring buffer data.
+using on_ring_buffer_data_callback =
+    std::function<void(const std::string&, const std::vector<uint8_t>&,
+                       const wifi_ring_buffer_status&)>;
+
+// Callback for alerts.
+using on_error_alert_callback =
+    std::function<void(int32_t, const std::vector<uint8_t>&)>;
+
+// Struct for the mac info from the legacy HAL. This is a cleaner version
+// of the |wifi_mac_info| & |wifi_iface_info|.
+typedef struct {
+    std::string name;
+    wifi_channel channel;
+} WifiIfaceInfo;
+
+typedef struct {
+    uint32_t wlan_mac_id;
+    /* BIT MASK of BIT(WLAN_MAC*) as represented by wlan_mac_band */
+    uint32_t mac_band;
+    /* Represents the connected Wi-Fi interfaces associated with each MAC */
+    std::vector<WifiIfaceInfo> iface_infos;
+} WifiMacInfo;
+
+// Callback for radio mode change
+using on_radio_mode_change_callback =
+    std::function<void(const std::vector<WifiMacInfo>&)>;
+
+/**
+ * Class that encapsulates all legacy HAL interactions.
+ * This class manages the lifetime of the event loop thread used by legacy HAL.
+ *
+ * Note: There will only be a single instance of this class created in the Wifi
+ * object and will be valid for the lifetime of the process.
+ */
+class WifiLegacyHal {
+   public:
+    WifiLegacyHal();
+    virtual ~WifiLegacyHal() = default;
+
+    // Initialize the legacy HAL function table.
+    virtual wifi_error initialize();
+    // Start the legacy HAL and the event looper thread.
+    virtual wifi_error start();
+    // Deinitialize the legacy HAL and wait for the event loop thread to exit
+    // using a predefined timeout.
+    virtual wifi_error stop(std::unique_lock<std::recursive_mutex>* lock,
+                            const std::function<void()>& on_complete_callback);
+    // Wrappers for all the functions in the legacy HAL function table.
+    std::pair<wifi_error, std::string> getDriverVersion(
+        const std::string& iface_name);
+    std::pair<wifi_error, std::string> getFirmwareVersion(
+        const std::string& iface_name);
+    std::pair<wifi_error, std::vector<uint8_t>> requestDriverMemoryDump(
+        const std::string& iface_name);
+    std::pair<wifi_error, std::vector<uint8_t>> requestFirmwareMemoryDump(
+        const std::string& iface_name);
+    std::pair<wifi_error, uint32_t> getSupportedFeatureSet(
+        const std::string& iface_name);
+    // APF functions.
+    std::pair<wifi_error, PacketFilterCapabilities> getPacketFilterCapabilities(
+        const std::string& iface_name);
+    wifi_error setPacketFilter(const std::string& iface_name,
+                               const std::vector<uint8_t>& program);
+    std::pair<wifi_error, std::vector<uint8_t>> readApfPacketFilterData(
+        const std::string& iface_name);
+    // Gscan functions.
+    std::pair<wifi_error, wifi_gscan_capabilities> getGscanCapabilities(
+        const std::string& iface_name);
+    // These API's provides a simplified interface over the legacy Gscan API's:
+    // a) All scan events from the legacy HAL API other than the
+    //    |WIFI_SCAN_FAILED| are treated as notification of results.
+    //    This method then retrieves the cached scan results from the legacy
+    //    HAL API and triggers the externally provided
+    //    |on_results_user_callback| on success.
+    // b) |WIFI_SCAN_FAILED| scan event or failure to retrieve cached scan
+    // results
+    //    triggers the externally provided |on_failure_user_callback|.
+    // c) Full scan result event triggers the externally provided
+    //    |on_full_result_user_callback|.
+    wifi_error startGscan(
+        const std::string& iface_name, wifi_request_id id,
+        const wifi_scan_cmd_params& params,
+        const std::function<void(wifi_request_id)>& on_failure_callback,
+        const on_gscan_results_callback& on_results_callback,
+        const on_gscan_full_result_callback& on_full_result_callback);
+    wifi_error stopGscan(const std::string& iface_name, wifi_request_id id);
+    std::pair<wifi_error, std::vector<uint32_t>> getValidFrequenciesForBand(
+        const std::string& iface_name, wifi_band band);
+    virtual wifi_error setDfsFlag(const std::string& iface_name, bool dfs_on);
+    // Link layer stats functions.
+    wifi_error enableLinkLayerStats(const std::string& iface_name, bool debug);
+    wifi_error disableLinkLayerStats(const std::string& iface_name);
+    std::pair<wifi_error, LinkLayerStats> getLinkLayerStats(
+        const std::string& iface_name);
+    // RSSI monitor functions.
+    wifi_error startRssiMonitoring(const std::string& iface_name,
+                                   wifi_request_id id, int8_t max_rssi,
+                                   int8_t min_rssi,
+                                   const on_rssi_threshold_breached_callback&
+                                       on_threshold_breached_callback);
+    wifi_error stopRssiMonitoring(const std::string& iface_name,
+                                  wifi_request_id id);
+    std::pair<wifi_error, wifi_roaming_capabilities> getRoamingCapabilities(
+        const std::string& iface_name);
+    wifi_error configureRoaming(const std::string& iface_name,
+                                const wifi_roaming_config& config);
+    wifi_error enableFirmwareRoaming(const std::string& iface_name,
+                                     fw_roaming_state_t state);
+    wifi_error configureNdOffload(const std::string& iface_name, bool enable);
+    wifi_error startSendingOffloadedPacket(
+        const std::string& iface_name, uint32_t cmd_id,
+        const std::vector<uint8_t>& ip_packet_data,
+        const std::array<uint8_t, 6>& src_address,
+        const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms);
+    wifi_error stopSendingOffloadedPacket(const std::string& iface_name,
+                                          uint32_t cmd_id);
+    wifi_error setScanningMacOui(const std::string& iface_name,
+                                 const std::array<uint8_t, 3>& oui);
+    wifi_error selectTxPowerScenario(const std::string& iface_name,
+                                     wifi_power_scenario scenario);
+    wifi_error resetTxPowerScenario(const std::string& iface_name);
+    wifi_error setLatencyMode(const std::string& iface_name,
+                              wifi_latency_mode mode);
+    // Logger/debug functions.
+    std::pair<wifi_error, uint32_t> getLoggerSupportedFeatureSet(
+        const std::string& iface_name);
+    wifi_error startPktFateMonitoring(const std::string& iface_name);
+    std::pair<wifi_error, std::vector<wifi_tx_report>> getTxPktFates(
+        const std::string& iface_name);
+    std::pair<wifi_error, std::vector<wifi_rx_report>> getRxPktFates(
+        const std::string& iface_name);
+    std::pair<wifi_error, WakeReasonStats> getWakeReasonStats(
+        const std::string& iface_name);
+    wifi_error registerRingBufferCallbackHandler(
+        const std::string& iface_name,
+        const on_ring_buffer_data_callback& on_data_callback);
+    wifi_error deregisterRingBufferCallbackHandler(
+        const std::string& iface_name);
+    std::pair<wifi_error, std::vector<wifi_ring_buffer_status>>
+    getRingBuffersStatus(const std::string& iface_name);
+    wifi_error startRingBufferLogging(const std::string& iface_name,
+                                      const std::string& ring_name,
+                                      uint32_t verbose_level,
+                                      uint32_t max_interval_sec,
+                                      uint32_t min_data_size);
+    wifi_error getRingBufferData(const std::string& iface_name,
+                                 const std::string& ring_name);
+    wifi_error registerErrorAlertCallbackHandler(
+        const std::string& iface_name,
+        const on_error_alert_callback& on_alert_callback);
+    wifi_error deregisterErrorAlertCallbackHandler(
+        const std::string& iface_name);
+    // Radio mode functions.
+    virtual wifi_error registerRadioModeChangeCallbackHandler(
+        const std::string& iface_name,
+        const on_radio_mode_change_callback& on_user_change_callback);
+    // RTT functions.
+    wifi_error startRttRangeRequest(
+        const std::string& iface_name, wifi_request_id id,
+        const std::vector<wifi_rtt_config>& rtt_configs,
+        const on_rtt_results_callback& on_results_callback);
+    wifi_error cancelRttRangeRequest(
+        const std::string& iface_name, wifi_request_id id,
+        const std::vector<std::array<uint8_t, 6>>& mac_addrs);
+    std::pair<wifi_error, wifi_rtt_capabilities> getRttCapabilities(
+        const std::string& iface_name);
+    std::pair<wifi_error, wifi_rtt_responder> getRttResponderInfo(
+        const std::string& iface_name);
+    wifi_error enableRttResponder(const std::string& iface_name,
+                                  wifi_request_id id,
+                                  const wifi_channel_info& channel_hint,
+                                  uint32_t max_duration_secs,
+                                  const wifi_rtt_responder& info);
+    wifi_error disableRttResponder(const std::string& iface_name,
+                                   wifi_request_id id);
+    wifi_error setRttLci(const std::string& iface_name, wifi_request_id id,
+                         const wifi_lci_information& info);
+    wifi_error setRttLcr(const std::string& iface_name, wifi_request_id id,
+                         const wifi_lcr_information& info);
+    // NAN functions.
+    virtual wifi_error nanRegisterCallbackHandlers(
+        const std::string& iface_name, const NanCallbackHandlers& callbacks);
+    wifi_error nanEnableRequest(const std::string& iface_name,
+                                transaction_id id, const NanEnableRequest& msg);
+    virtual wifi_error nanDisableRequest(const std::string& iface_name,
+                                         transaction_id id);
+    wifi_error nanPublishRequest(const std::string& iface_name,
+                                 transaction_id id,
+                                 const NanPublishRequest& msg);
+    wifi_error nanPublishCancelRequest(const std::string& iface_name,
+                                       transaction_id id,
+                                       const NanPublishCancelRequest& msg);
+    wifi_error nanSubscribeRequest(const std::string& iface_name,
+                                   transaction_id id,
+                                   const NanSubscribeRequest& msg);
+    wifi_error nanSubscribeCancelRequest(const std::string& iface_name,
+                                         transaction_id id,
+                                         const NanSubscribeCancelRequest& msg);
+    wifi_error nanTransmitFollowupRequest(
+        const std::string& iface_name, transaction_id id,
+        const NanTransmitFollowupRequest& msg);
+    wifi_error nanStatsRequest(const std::string& iface_name, transaction_id id,
+                               const NanStatsRequest& msg);
+    wifi_error nanConfigRequest(const std::string& iface_name,
+                                transaction_id id, const NanConfigRequest& msg);
+    wifi_error nanTcaRequest(const std::string& iface_name, transaction_id id,
+                             const NanTCARequest& msg);
+    wifi_error nanBeaconSdfPayloadRequest(
+        const std::string& iface_name, transaction_id id,
+        const NanBeaconSdfPayloadRequest& msg);
+    std::pair<wifi_error, NanVersion> nanGetVersion();
+    wifi_error nanGetCapabilities(const std::string& iface_name,
+                                  transaction_id id);
+    wifi_error nanDataInterfaceCreate(const std::string& iface_name,
+                                      transaction_id id,
+                                      const std::string& data_iface_name);
+    virtual wifi_error nanDataInterfaceDelete(
+        const std::string& iface_name, transaction_id id,
+        const std::string& data_iface_name);
+    wifi_error nanDataRequestInitiator(const std::string& iface_name,
+                                       transaction_id id,
+                                       const NanDataPathInitiatorRequest& msg);
+    wifi_error nanDataIndicationResponse(
+        const std::string& iface_name, transaction_id id,
+        const NanDataPathIndicationResponse& msg);
+    wifi_error nanDataEnd(const std::string& iface_name, transaction_id id,
+                          uint32_t ndpInstanceId);
+    // AP functions.
+    wifi_error setCountryCode(const std::string& iface_name,
+                              std::array<int8_t, 2> code);
+
+   private:
+    // Retrieve interface handles for all the available interfaces.
+    wifi_error retrieveIfaceHandles();
+    wifi_interface_handle getIfaceHandle(const std::string& iface_name);
+    // Run the legacy HAL event loop thread.
+    void runEventLoop();
+    // Retrieve the cached gscan results to pass the results back to the
+    // external callbacks.
+    std::pair<wifi_error, std::vector<wifi_cached_scan_results>>
+    getGscanCachedResults(const std::string& iface_name);
+    void invalidate();
+
+    // Global function table of legacy HAL.
+    wifi_hal_fn global_func_table_;
+    // Opaque handle to be used for all global operations.
+    wifi_handle global_handle_;
+    // Map of interface name to handle that is to be used for all interface
+    // specific operations.
+    std::map<std::string, wifi_interface_handle> iface_name_to_handle_;
+    // Flag to indicate if we have initiated the cleanup of legacy HAL.
+    std::atomic<bool> awaiting_event_loop_termination_;
+    std::condition_variable_any stop_wait_cv_;
+    // Flag to indicate if the legacy HAL has been started.
+    bool is_started_;
+    wifi_system::InterfaceTool iface_tool_;
+};
+
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_LEGACY_HAL_H_
diff --git a/wifi/1.3/default/wifi_legacy_hal_stubs.cpp b/wifi/1.3/default/wifi_legacy_hal_stubs.cpp
new file mode 100644
index 0000000..dedd2d4
--- /dev/null
+++ b/wifi/1.3/default/wifi_legacy_hal_stubs.cpp
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "wifi_legacy_hal_stubs.h"
+
+// TODO: Remove these stubs from HalTool in libwifi-system.
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace legacy_hal {
+template <typename>
+struct stubFunction;
+
+template <typename R, typename... Args>
+struct stubFunction<R (*)(Args...)> {
+    static constexpr R invoke(Args...) { return WIFI_ERROR_NOT_SUPPORTED; }
+};
+template <typename... Args>
+struct stubFunction<void (*)(Args...)> {
+    static constexpr void invoke(Args...) {}
+};
+
+template <typename T>
+void populateStubFor(T* val) {
+    *val = &stubFunction<T>::invoke;
+}
+
+bool initHalFuncTableWithStubs(wifi_hal_fn* hal_fn) {
+    if (hal_fn == nullptr) {
+        return false;
+    }
+    populateStubFor(&hal_fn->wifi_initialize);
+    populateStubFor(&hal_fn->wifi_wait_for_driver_ready);
+    populateStubFor(&hal_fn->wifi_cleanup);
+    populateStubFor(&hal_fn->wifi_event_loop);
+    populateStubFor(&hal_fn->wifi_get_error_info);
+    populateStubFor(&hal_fn->wifi_get_supported_feature_set);
+    populateStubFor(&hal_fn->wifi_get_concurrency_matrix);
+    populateStubFor(&hal_fn->wifi_set_scanning_mac_oui);
+    populateStubFor(&hal_fn->wifi_get_supported_channels);
+    populateStubFor(&hal_fn->wifi_is_epr_supported);
+    populateStubFor(&hal_fn->wifi_get_ifaces);
+    populateStubFor(&hal_fn->wifi_get_iface_name);
+    populateStubFor(&hal_fn->wifi_set_iface_event_handler);
+    populateStubFor(&hal_fn->wifi_reset_iface_event_handler);
+    populateStubFor(&hal_fn->wifi_start_gscan);
+    populateStubFor(&hal_fn->wifi_stop_gscan);
+    populateStubFor(&hal_fn->wifi_get_cached_gscan_results);
+    populateStubFor(&hal_fn->wifi_set_bssid_hotlist);
+    populateStubFor(&hal_fn->wifi_reset_bssid_hotlist);
+    populateStubFor(&hal_fn->wifi_set_significant_change_handler);
+    populateStubFor(&hal_fn->wifi_reset_significant_change_handler);
+    populateStubFor(&hal_fn->wifi_get_gscan_capabilities);
+    populateStubFor(&hal_fn->wifi_set_link_stats);
+    populateStubFor(&hal_fn->wifi_get_link_stats);
+    populateStubFor(&hal_fn->wifi_clear_link_stats);
+    populateStubFor(&hal_fn->wifi_get_valid_channels);
+    populateStubFor(&hal_fn->wifi_rtt_range_request);
+    populateStubFor(&hal_fn->wifi_rtt_range_cancel);
+    populateStubFor(&hal_fn->wifi_get_rtt_capabilities);
+    populateStubFor(&hal_fn->wifi_rtt_get_responder_info);
+    populateStubFor(&hal_fn->wifi_enable_responder);
+    populateStubFor(&hal_fn->wifi_disable_responder);
+    populateStubFor(&hal_fn->wifi_set_nodfs_flag);
+    populateStubFor(&hal_fn->wifi_start_logging);
+    populateStubFor(&hal_fn->wifi_set_epno_list);
+    populateStubFor(&hal_fn->wifi_reset_epno_list);
+    populateStubFor(&hal_fn->wifi_set_country_code);
+    populateStubFor(&hal_fn->wifi_get_firmware_memory_dump);
+    populateStubFor(&hal_fn->wifi_set_log_handler);
+    populateStubFor(&hal_fn->wifi_reset_log_handler);
+    populateStubFor(&hal_fn->wifi_set_alert_handler);
+    populateStubFor(&hal_fn->wifi_reset_alert_handler);
+    populateStubFor(&hal_fn->wifi_get_firmware_version);
+    populateStubFor(&hal_fn->wifi_get_ring_buffers_status);
+    populateStubFor(&hal_fn->wifi_get_logger_supported_feature_set);
+    populateStubFor(&hal_fn->wifi_get_ring_data);
+    populateStubFor(&hal_fn->wifi_enable_tdls);
+    populateStubFor(&hal_fn->wifi_disable_tdls);
+    populateStubFor(&hal_fn->wifi_get_tdls_status);
+    populateStubFor(&hal_fn->wifi_get_tdls_capabilities);
+    populateStubFor(&hal_fn->wifi_get_driver_version);
+    populateStubFor(&hal_fn->wifi_set_passpoint_list);
+    populateStubFor(&hal_fn->wifi_reset_passpoint_list);
+    populateStubFor(&hal_fn->wifi_set_lci);
+    populateStubFor(&hal_fn->wifi_set_lcr);
+    populateStubFor(&hal_fn->wifi_start_sending_offloaded_packet);
+    populateStubFor(&hal_fn->wifi_stop_sending_offloaded_packet);
+    populateStubFor(&hal_fn->wifi_start_rssi_monitoring);
+    populateStubFor(&hal_fn->wifi_stop_rssi_monitoring);
+    populateStubFor(&hal_fn->wifi_get_wake_reason_stats);
+    populateStubFor(&hal_fn->wifi_configure_nd_offload);
+    populateStubFor(&hal_fn->wifi_get_driver_memory_dump);
+    populateStubFor(&hal_fn->wifi_start_pkt_fate_monitoring);
+    populateStubFor(&hal_fn->wifi_get_tx_pkt_fates);
+    populateStubFor(&hal_fn->wifi_get_rx_pkt_fates);
+    populateStubFor(&hal_fn->wifi_nan_enable_request);
+    populateStubFor(&hal_fn->wifi_nan_disable_request);
+    populateStubFor(&hal_fn->wifi_nan_publish_request);
+    populateStubFor(&hal_fn->wifi_nan_publish_cancel_request);
+    populateStubFor(&hal_fn->wifi_nan_subscribe_request);
+    populateStubFor(&hal_fn->wifi_nan_subscribe_cancel_request);
+    populateStubFor(&hal_fn->wifi_nan_transmit_followup_request);
+    populateStubFor(&hal_fn->wifi_nan_stats_request);
+    populateStubFor(&hal_fn->wifi_nan_config_request);
+    populateStubFor(&hal_fn->wifi_nan_tca_request);
+    populateStubFor(&hal_fn->wifi_nan_beacon_sdf_payload_request);
+    populateStubFor(&hal_fn->wifi_nan_register_handler);
+    populateStubFor(&hal_fn->wifi_nan_get_version);
+    populateStubFor(&hal_fn->wifi_nan_get_capabilities);
+    populateStubFor(&hal_fn->wifi_nan_data_interface_create);
+    populateStubFor(&hal_fn->wifi_nan_data_interface_delete);
+    populateStubFor(&hal_fn->wifi_nan_data_request_initiator);
+    populateStubFor(&hal_fn->wifi_nan_data_indication_response);
+    populateStubFor(&hal_fn->wifi_nan_data_end);
+    populateStubFor(&hal_fn->wifi_get_packet_filter_capabilities);
+    populateStubFor(&hal_fn->wifi_set_packet_filter);
+    populateStubFor(&hal_fn->wifi_read_packet_filter);
+    populateStubFor(&hal_fn->wifi_get_roaming_capabilities);
+    populateStubFor(&hal_fn->wifi_enable_firmware_roaming);
+    populateStubFor(&hal_fn->wifi_configure_roaming);
+    populateStubFor(&hal_fn->wifi_select_tx_power_scenario);
+    populateStubFor(&hal_fn->wifi_reset_tx_power_scenario);
+    populateStubFor(&hal_fn->wifi_set_radio_mode_change_handler);
+    populateStubFor(&hal_fn->wifi_set_latency_mode);
+    return true;
+}
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_legacy_hal_stubs.h b/wifi/1.3/default/wifi_legacy_hal_stubs.h
new file mode 100644
index 0000000..64854e0
--- /dev/null
+++ b/wifi/1.3/default/wifi_legacy_hal_stubs.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_LEGACY_HAL_STUBS_H_
+#define WIFI_LEGACY_HAL_STUBS_H_
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace legacy_hal {
+#include <hardware_legacy/wifi_hal.h>
+
+bool initHalFuncTableWithStubs(wifi_hal_fn* hal_fn);
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_LEGACY_HAL_STUBS_H_
diff --git a/wifi/1.3/default/wifi_mode_controller.cpp b/wifi/1.3/default/wifi_mode_controller.cpp
new file mode 100644
index 0000000..c392486
--- /dev/null
+++ b/wifi/1.3/default/wifi_mode_controller.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <private/android_filesystem_config.h>
+
+#include "wifi_mode_controller.h"
+
+using android::hardware::wifi::V1_0::IfaceType;
+using android::wifi_hal::DriverTool;
+
+namespace {
+int convertIfaceTypeToFirmwareMode(IfaceType type) {
+    int mode;
+    switch (type) {
+        case IfaceType::AP:
+            mode = DriverTool::kFirmwareModeAp;
+            break;
+        case IfaceType::P2P:
+            mode = DriverTool::kFirmwareModeP2p;
+            break;
+        case IfaceType::NAN:
+            // NAN is exposed in STA mode currently.
+            mode = DriverTool::kFirmwareModeSta;
+            break;
+        case IfaceType::STA:
+            mode = DriverTool::kFirmwareModeSta;
+            break;
+    }
+    return mode;
+}
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace mode_controller {
+
+WifiModeController::WifiModeController() : driver_tool_(new DriverTool) {}
+
+bool WifiModeController::isFirmwareModeChangeNeeded(IfaceType type) {
+    return driver_tool_->IsFirmwareModeChangeNeeded(
+        convertIfaceTypeToFirmwareMode(type));
+}
+
+bool WifiModeController::initialize() {
+    if (!driver_tool_->LoadDriver()) {
+        LOG(ERROR) << "Failed to load WiFi driver";
+        return false;
+    }
+    return true;
+}
+
+bool WifiModeController::changeFirmwareMode(IfaceType type) {
+    if (!driver_tool_->ChangeFirmwareMode(
+            convertIfaceTypeToFirmwareMode(type))) {
+        LOG(ERROR) << "Failed to change firmware mode";
+        return false;
+    }
+    return true;
+}
+
+bool WifiModeController::deinitialize() {
+    if (!driver_tool_->UnloadDriver()) {
+        LOG(ERROR) << "Failed to unload WiFi driver";
+        return false;
+    }
+    return true;
+}
+}  // namespace mode_controller
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_mode_controller.h b/wifi/1.3/default/wifi_mode_controller.h
new file mode 100644
index 0000000..ace5a52
--- /dev/null
+++ b/wifi/1.3/default/wifi_mode_controller.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_MODE_CONTROLLER_H_
+#define WIFI_MODE_CONTROLLER_H_
+
+#include <wifi_hal/driver_tool.h>
+
+#include <android/hardware/wifi/1.0/IWifi.h>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+namespace mode_controller {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * Class that encapsulates all firmware mode configuration.
+ * This class will perform the necessary firmware reloads to put the chip in the
+ * required state (essentially a wrapper over DriverTool).
+ */
+class WifiModeController {
+   public:
+    WifiModeController();
+    virtual ~WifiModeController() = default;
+
+    // Checks if a firmware mode change is necessary to support the specified
+    // iface type operations.
+    virtual bool isFirmwareModeChangeNeeded(IfaceType type);
+    virtual bool initialize();
+    // Change the firmware mode to support the specified iface type operations.
+    virtual bool changeFirmwareMode(IfaceType type);
+    // Unload the driver. This should be invoked whenever |IWifi.stop()| is
+    // invoked.
+    virtual bool deinitialize();
+
+   private:
+    std::unique_ptr<wifi_hal::DriverTool> driver_tool_;
+};
+
+}  // namespace mode_controller
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_MODE_CONTROLLER_H_
diff --git a/wifi/1.3/default/wifi_nan_iface.cpp b/wifi/1.3/default/wifi_nan_iface.cpp
new file mode 100644
index 0000000..4325f44
--- /dev/null
+++ b/wifi/1.3/default/wifi_nan_iface.cpp
@@ -0,0 +1,863 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "hidl_struct_util.h"
+#include "wifi_nan_iface.h"
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+
+WifiNanIface::WifiNanIface(
+    const std::string& ifname,
+    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
+    : ifname_(ifname), legacy_hal_(legacy_hal), is_valid_(true) {
+    // Register all the callbacks here. these should be valid for the lifetime
+    // of the object. Whenever the mode changes legacy HAL will remove
+    // all of these callbacks.
+    legacy_hal::NanCallbackHandlers callback_handlers;
+    android::wp<WifiNanIface> weak_ptr_this(this);
+
+    // Callback for response.
+    callback_handlers
+        .on_notify_response = [weak_ptr_this](
+                                  legacy_hal::transaction_id id,
+                                  const legacy_hal::NanResponseMsg& msg) {
+        const auto shared_ptr_this = weak_ptr_this.promote();
+        if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+            LOG(ERROR) << "Callback invoked on an invalid object";
+            return;
+        }
+        WifiNanStatus wifiNanStatus;
+        if (!hidl_struct_util::convertLegacyNanResponseHeaderToHidl(
+                msg, &wifiNanStatus)) {
+            LOG(ERROR) << "Failed to convert nan response header";
+            return;
+        }
+
+        switch (msg.response_type) {
+            case legacy_hal::NAN_RESPONSE_ENABLED: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback->notifyEnableResponse(id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_DISABLED: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback->notifyDisableResponse(id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_PUBLISH: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyStartPublishResponse(
+                                 id, wifiNanStatus,
+                                 msg.body.publish_response.publish_id)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_PUBLISH_CANCEL: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback->notifyStopPublishResponse(id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_TRANSMIT_FOLLOWUP: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyTransmitFollowupResponse(id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_SUBSCRIBE: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyStartSubscribeResponse(
+                                 id, wifiNanStatus,
+                                 msg.body.subscribe_response.subscribe_id)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_SUBSCRIBE_CANCEL: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyStopSubscribeResponse(id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_CONFIG: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback->notifyConfigResponse(id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_GET_CAPABILITIES: {
+                NanCapabilities hidl_struct;
+                if (!hidl_struct_util::
+                        convertLegacyNanCapabilitiesResponseToHidl(
+                            msg.body.nan_capabilities, &hidl_struct)) {
+                    LOG(ERROR) << "Failed to convert nan capabilities response";
+                    return;
+                }
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyCapabilitiesResponse(id, wifiNanStatus,
+                                                          hidl_struct)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_DP_INTERFACE_CREATE: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyCreateDataInterfaceResponse(id,
+                                                                 wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_DP_INTERFACE_DELETE: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyDeleteDataInterfaceResponse(id,
+                                                                 wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_DP_INITIATOR_RESPONSE: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyInitiateDataPathResponse(
+                                 id, wifiNanStatus,
+                                 msg.body.data_request_response.ndp_instance_id)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_DP_RESPONDER_RESPONSE: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyRespondToDataPathIndicationResponse(
+                                 id, wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_DP_END: {
+                for (const auto& callback :
+                     shared_ptr_this->getEventCallbacks()) {
+                    if (!callback
+                             ->notifyTerminateDataPathResponse(id,
+                                                               wifiNanStatus)
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+                break;
+            }
+            case legacy_hal::NAN_RESPONSE_BEACON_SDF_PAYLOAD:
+            /* fall through */
+            case legacy_hal::NAN_RESPONSE_TCA:
+            /* fall through */
+            case legacy_hal::NAN_RESPONSE_STATS:
+            /* fall through */
+            case legacy_hal::NAN_RESPONSE_ERROR:
+            /* fall through */
+            default:
+                LOG(ERROR) << "Unknown or unhandled response type: "
+                           << msg.response_type;
+                return;
+        }
+    };
+
+    callback_handlers.on_event_disc_eng_event =
+        [weak_ptr_this](const legacy_hal::NanDiscEngEventInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            NanClusterEventInd hidl_struct;
+            // event types defined identically - hence can be cast
+            hidl_struct.eventType = (NanClusterEventType)msg.event_type;
+            hidl_struct.addr = msg.data.mac_addr.addr;
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventClusterEvent(hidl_struct).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_disabled =
+        [weak_ptr_this](const legacy_hal::NanDisabledInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            WifiNanStatus status;
+            hidl_struct_util::convertToWifiNanStatus(
+                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventDisabled(status).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_publish_terminated =
+        [weak_ptr_this](const legacy_hal::NanPublishTerminatedInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            WifiNanStatus status;
+            hidl_struct_util::convertToWifiNanStatus(
+                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventPublishTerminated(msg.publish_id, status)
+                         .isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_subscribe_terminated =
+        [weak_ptr_this](const legacy_hal::NanSubscribeTerminatedInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            WifiNanStatus status;
+            hidl_struct_util::convertToWifiNanStatus(
+                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback
+                         ->eventSubscribeTerminated(msg.subscribe_id, status)
+                         .isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_match =
+        [weak_ptr_this](const legacy_hal::NanMatchInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            NanMatchInd hidl_struct;
+            if (!hidl_struct_util::convertLegacyNanMatchIndToHidl(
+                    msg, &hidl_struct)) {
+                LOG(ERROR) << "Failed to convert nan capabilities response";
+                return;
+            }
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventMatch(hidl_struct).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_match_expired =
+        [weak_ptr_this](const legacy_hal::NanMatchExpiredInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback
+                         ->eventMatchExpired(msg.publish_subscribe_id,
+                                             msg.requestor_instance_id)
+                         .isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_followup =
+        [weak_ptr_this](const legacy_hal::NanFollowupInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            NanFollowupReceivedInd hidl_struct;
+            if (!hidl_struct_util::convertLegacyNanFollowupIndToHidl(
+                    msg, &hidl_struct)) {
+                LOG(ERROR) << "Failed to convert nan capabilities response";
+                return;
+            }
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventFollowupReceived(hidl_struct).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_transmit_follow_up =
+        [weak_ptr_this](const legacy_hal::NanTransmitFollowupInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            WifiNanStatus status;
+            hidl_struct_util::convertToWifiNanStatus(
+                msg.reason, msg.nan_reason, sizeof(msg.nan_reason), &status);
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventTransmitFollowup(msg.id, status).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_data_path_request =
+        [weak_ptr_this](const legacy_hal::NanDataPathRequestInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            NanDataPathRequestInd hidl_struct;
+            if (!hidl_struct_util::convertLegacyNanDataPathRequestIndToHidl(
+                    msg, &hidl_struct)) {
+                LOG(ERROR) << "Failed to convert nan capabilities response";
+                return;
+            }
+
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->eventDataPathRequest(hidl_struct).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_data_path_confirm =
+        [weak_ptr_this](const legacy_hal::NanDataPathConfirmInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            V1_2::NanDataPathConfirmInd hidl_struct;
+            if (!hidl_struct_util::convertLegacyNanDataPathConfirmIndToHidl(
+                    msg, &hidl_struct)) {
+                LOG(ERROR) << "Failed to convert nan capabilities response";
+                return;
+            }
+
+            for (const auto& callback :
+                 shared_ptr_this->getEventCallbacks_1_2()) {
+                if (!callback->eventDataPathConfirm_1_2(hidl_struct).isOk()) {
+                    LOG(ERROR) << "Failed to invoke the callback";
+                }
+            }
+        };
+
+    callback_handlers.on_event_data_path_end =
+        [weak_ptr_this](const legacy_hal::NanDataPathEndInd& msg) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                for (int i = 0; i < msg.num_ndp_instances; ++i) {
+                    if (!callback
+                             ->eventDataPathTerminated(msg.ndp_instance_id[i])
+                             .isOk()) {
+                        LOG(ERROR) << "Failed to invoke the callback";
+                    }
+                }
+            }
+        };
+
+    callback_handlers.on_event_beacon_sdf_payload =
+        [weak_ptr_this](const legacy_hal::NanBeaconSdfPayloadInd& /* msg */) {
+            LOG(ERROR) << "on_event_beacon_sdf_payload - should not be called";
+        };
+
+    callback_handlers.on_event_range_request =
+        [weak_ptr_this](const legacy_hal::NanRangeRequestInd& /* msg */) {
+            LOG(ERROR) << "on_event_range_request - should not be called";
+        };
+
+    callback_handlers.on_event_range_report =
+        [weak_ptr_this](const legacy_hal::NanRangeReportInd& /* msg */) {
+            LOG(ERROR) << "on_event_range_report - should not be called";
+        };
+
+    callback_handlers
+        .on_event_schedule_update = [weak_ptr_this](
+                                        const legacy_hal::
+                                            NanDataPathScheduleUpdateInd& msg) {
+        const auto shared_ptr_this = weak_ptr_this.promote();
+        if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+            LOG(ERROR) << "Callback invoked on an invalid object";
+            return;
+        }
+        V1_2::NanDataPathScheduleUpdateInd hidl_struct;
+        if (!hidl_struct_util::convertLegacyNanDataPathScheduleUpdateIndToHidl(
+                msg, &hidl_struct)) {
+            LOG(ERROR) << "Failed to convert nan capabilities response";
+            return;
+        }
+
+        for (const auto& callback : shared_ptr_this->getEventCallbacks_1_2()) {
+            if (!callback->eventDataPathScheduleUpdate(hidl_struct).isOk()) {
+                LOG(ERROR) << "Failed to invoke the callback";
+            }
+        }
+    };
+
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanRegisterCallbackHandlers(ifname_,
+                                                        callback_handlers);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "Failed to register nan callbacks. Invalidating object";
+        invalidate();
+    }
+}
+
+void WifiNanIface::invalidate() {
+    // send commands to HAL to actually disable and destroy interfaces
+    legacy_hal_.lock()->nanDisableRequest(ifname_, 0xFFFF);
+    legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, 0xFFFE, "aware_data0");
+    legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, 0xFFFD, "aware_data1");
+
+    legacy_hal_.reset();
+    event_cb_handler_.invalidate();
+    event_cb_handler_1_2_.invalidate();
+    is_valid_ = false;
+}
+
+bool WifiNanIface::isValid() { return is_valid_; }
+
+std::string WifiNanIface::getName() { return ifname_; }
+
+std::set<sp<V1_0::IWifiNanIfaceEventCallback>>
+WifiNanIface::getEventCallbacks() {
+    return event_cb_handler_.getCallbacks();
+}
+
+std::set<sp<V1_2::IWifiNanIfaceEventCallback>>
+WifiNanIface::getEventCallbacks_1_2() {
+    return event_cb_handler_1_2_.getCallbacks();
+}
+
+Return<void> WifiNanIface::getName(getName_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::getNameInternal, hidl_status_cb);
+}
+
+Return<void> WifiNanIface::getType(getType_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::getTypeInternal, hidl_status_cb);
+}
+
+Return<void> WifiNanIface::registerEventCallback(
+    const sp<V1_0::IWifiNanIfaceEventCallback>& callback,
+    registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::registerEventCallbackInternal,
+                           hidl_status_cb, callback);
+}
+
+Return<void> WifiNanIface::getCapabilitiesRequest(
+    uint16_t cmd_id, getCapabilitiesRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::getCapabilitiesRequestInternal,
+                           hidl_status_cb, cmd_id);
+}
+
+Return<void> WifiNanIface::enableRequest(uint16_t cmd_id,
+                                         const NanEnableRequest& msg,
+                                         enableRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::enableRequestInternal, hidl_status_cb,
+                           cmd_id, msg);
+}
+
+Return<void> WifiNanIface::configRequest(uint16_t cmd_id,
+                                         const NanConfigRequest& msg,
+                                         configRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::configRequestInternal, hidl_status_cb,
+                           cmd_id, msg);
+}
+
+Return<void> WifiNanIface::disableRequest(uint16_t cmd_id,
+                                          disableRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::disableRequestInternal,
+                           hidl_status_cb, cmd_id);
+}
+
+Return<void> WifiNanIface::startPublishRequest(
+    uint16_t cmd_id, const NanPublishRequest& msg,
+    startPublishRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::startPublishRequestInternal,
+                           hidl_status_cb, cmd_id, msg);
+}
+
+Return<void> WifiNanIface::stopPublishRequest(
+    uint16_t cmd_id, uint8_t sessionId, stopPublishRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::stopPublishRequestInternal,
+                           hidl_status_cb, cmd_id, sessionId);
+}
+
+Return<void> WifiNanIface::startSubscribeRequest(
+    uint16_t cmd_id, const NanSubscribeRequest& msg,
+    startSubscribeRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::startSubscribeRequestInternal,
+                           hidl_status_cb, cmd_id, msg);
+}
+
+Return<void> WifiNanIface::stopSubscribeRequest(
+    uint16_t cmd_id, uint8_t sessionId,
+    stopSubscribeRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::stopSubscribeRequestInternal,
+                           hidl_status_cb, cmd_id, sessionId);
+}
+
+Return<void> WifiNanIface::transmitFollowupRequest(
+    uint16_t cmd_id, const NanTransmitFollowupRequest& msg,
+    transmitFollowupRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::transmitFollowupRequestInternal,
+                           hidl_status_cb, cmd_id, msg);
+}
+
+Return<void> WifiNanIface::createDataInterfaceRequest(
+    uint16_t cmd_id, const hidl_string& iface_name,
+    createDataInterfaceRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::createDataInterfaceRequestInternal,
+                           hidl_status_cb, cmd_id, iface_name);
+}
+
+Return<void> WifiNanIface::deleteDataInterfaceRequest(
+    uint16_t cmd_id, const hidl_string& iface_name,
+    deleteDataInterfaceRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::deleteDataInterfaceRequestInternal,
+                           hidl_status_cb, cmd_id, iface_name);
+}
+
+Return<void> WifiNanIface::initiateDataPathRequest(
+    uint16_t cmd_id, const NanInitiateDataPathRequest& msg,
+    initiateDataPathRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::initiateDataPathRequestInternal,
+                           hidl_status_cb, cmd_id, msg);
+}
+
+Return<void> WifiNanIface::respondToDataPathIndicationRequest(
+    uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg,
+    respondToDataPathIndicationRequest_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+        &WifiNanIface::respondToDataPathIndicationRequestInternal,
+        hidl_status_cb, cmd_id, msg);
+}
+
+Return<void> WifiNanIface::terminateDataPathRequest(
+    uint16_t cmd_id, uint32_t ndpInstanceId,
+    terminateDataPathRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::terminateDataPathRequestInternal,
+                           hidl_status_cb, cmd_id, ndpInstanceId);
+}
+
+Return<void> WifiNanIface::registerEventCallback_1_2(
+    const sp<V1_2::IWifiNanIfaceEventCallback>& callback,
+    registerEventCallback_1_2_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::registerEventCallback_1_2Internal,
+                           hidl_status_cb, callback);
+}
+
+Return<void> WifiNanIface::enableRequest_1_2(
+    uint16_t cmd_id, const NanEnableRequest& msg1,
+    const V1_2::NanConfigRequestSupplemental& msg2,
+    enableRequest_1_2_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::enableRequest_1_2Internal,
+                           hidl_status_cb, cmd_id, msg1, msg2);
+}
+
+Return<void> WifiNanIface::configRequest_1_2(
+    uint16_t cmd_id, const NanConfigRequest& msg1,
+    const V1_2::NanConfigRequestSupplemental& msg2,
+    configRequest_1_2_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::configRequest_1_2Internal,
+                           hidl_status_cb, cmd_id, msg1, msg2);
+}
+
+std::pair<WifiStatus, std::string> WifiNanIface::getNameInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
+}
+
+std::pair<WifiStatus, IfaceType> WifiNanIface::getTypeInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::NAN};
+}
+
+WifiStatus WifiNanIface::registerEventCallbackInternal(
+    const sp<V1_0::IWifiNanIfaceEventCallback>& callback) {
+    if (!event_cb_handler_.addCallback(callback)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiNanIface::getCapabilitiesRequestInternal(uint16_t cmd_id) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanGetCapabilities(ifname_, cmd_id);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::enableRequestInternal(
+    uint16_t /* cmd_id */, const NanEnableRequest& /* msg */) {
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
+}
+
+WifiStatus WifiNanIface::configRequestInternal(
+    uint16_t /* cmd_id */, const NanConfigRequest& /* msg */) {
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
+}
+
+WifiStatus WifiNanIface::disableRequestInternal(uint16_t cmd_id) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanDisableRequest(ifname_, cmd_id);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::startPublishRequestInternal(
+    uint16_t cmd_id, const NanPublishRequest& msg) {
+    legacy_hal::NanPublishRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanPublishRequestToLegacy(msg,
+                                                                &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanPublishRequest(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::stopPublishRequestInternal(uint16_t cmd_id,
+                                                    uint8_t sessionId) {
+    legacy_hal::NanPublishCancelRequest legacy_msg;
+    legacy_msg.publish_id = sessionId;
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanPublishCancelRequest(ifname_, cmd_id,
+                                                    legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::startSubscribeRequestInternal(
+    uint16_t cmd_id, const NanSubscribeRequest& msg) {
+    legacy_hal::NanSubscribeRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanSubscribeRequestToLegacy(
+            msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanSubscribeRequest(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::stopSubscribeRequestInternal(uint16_t cmd_id,
+                                                      uint8_t sessionId) {
+    legacy_hal::NanSubscribeCancelRequest legacy_msg;
+    legacy_msg.subscribe_id = sessionId;
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanSubscribeCancelRequest(ifname_, cmd_id,
+                                                      legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::transmitFollowupRequestInternal(
+    uint16_t cmd_id, const NanTransmitFollowupRequest& msg) {
+    legacy_hal::NanTransmitFollowupRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanTransmitFollowupRequestToLegacy(
+            msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanTransmitFollowupRequest(ifname_, cmd_id,
+                                                       legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::createDataInterfaceRequestInternal(
+    uint16_t cmd_id, const std::string& iface_name) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanDataInterfaceCreate(ifname_, cmd_id, iface_name);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+WifiStatus WifiNanIface::deleteDataInterfaceRequestInternal(
+    uint16_t cmd_id, const std::string& iface_name) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, cmd_id, iface_name);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+WifiStatus WifiNanIface::initiateDataPathRequestInternal(
+    uint16_t cmd_id, const NanInitiateDataPathRequest& msg) {
+    legacy_hal::NanDataPathInitiatorRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanDataPathInitiatorRequestToLegacy(
+            msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanDataRequestInitiator(ifname_, cmd_id,
+                                                    legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+WifiStatus WifiNanIface::respondToDataPathIndicationRequestInternal(
+    uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg) {
+    legacy_hal::NanDataPathIndicationResponse legacy_msg;
+    if (!hidl_struct_util::convertHidlNanDataPathIndicationResponseToLegacy(
+            msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanDataIndicationResponse(ifname_, cmd_id,
+                                                      legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+WifiStatus WifiNanIface::terminateDataPathRequestInternal(
+    uint16_t cmd_id, uint32_t ndpInstanceId) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanDataEnd(ifname_, cmd_id, ndpInstanceId);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::registerEventCallback_1_2Internal(
+    const sp<V1_2::IWifiNanIfaceEventCallback>& callback) {
+    sp<V1_0::IWifiNanIfaceEventCallback> callback_1_0 = callback;
+    if (!event_cb_handler_.addCallback(callback_1_0)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    if (!event_cb_handler_1_2_.addCallback(callback)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiNanIface::enableRequest_1_2Internal(
+    uint16_t cmd_id, const NanEnableRequest& msg1,
+    const V1_2::NanConfigRequestSupplemental& msg2) {
+    legacy_hal::NanEnableRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanEnableRequest_1_2ToLegacy(
+            msg1, msg2, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanEnableRequest(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::configRequest_1_2Internal(
+    uint16_t cmd_id, const NanConfigRequest& msg1,
+    const V1_2::NanConfigRequestSupplemental& msg2) {
+    legacy_hal::NanConfigRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanConfigRequest_1_2ToLegacy(
+            msg1, msg2, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->nanConfigRequest(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_nan_iface.h b/wifi/1.3/default/wifi_nan_iface.h
new file mode 100644
index 0000000..f735d61
--- /dev/null
+++ b/wifi/1.3/default/wifi_nan_iface.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_NAN_IFACE_H_
+#define WIFI_NAN_IFACE_H_
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.0/IWifiNanIfaceEventCallback.h>
+#include <android/hardware/wifi/1.2/IWifiNanIface.h>
+
+#include "hidl_callback_util.h"
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * HIDL interface object used to control a NAN Iface instance.
+ */
+class WifiNanIface : public V1_2::IWifiNanIface {
+   public:
+    WifiNanIface(const std::string& ifname,
+                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
+    // Refer to |WifiChip::invalidate()|.
+    void invalidate();
+    bool isValid();
+    std::string getName();
+
+    // HIDL methods exposed.
+    Return<void> getName(getName_cb hidl_status_cb) override;
+    Return<void> getType(getType_cb hidl_status_cb) override;
+    Return<void> registerEventCallback(
+        const sp<V1_0::IWifiNanIfaceEventCallback>& callback,
+        registerEventCallback_cb hidl_status_cb) override;
+    Return<void> getCapabilitiesRequest(
+        uint16_t cmd_id, getCapabilitiesRequest_cb hidl_status_cb) override;
+    Return<void> enableRequest(uint16_t cmd_id, const NanEnableRequest& msg,
+                               enableRequest_cb hidl_status_cb) override;
+    Return<void> configRequest(uint16_t cmd_id, const NanConfigRequest& msg,
+                               configRequest_cb hidl_status_cb) override;
+    Return<void> disableRequest(uint16_t cmd_id,
+                                disableRequest_cb hidl_status_cb) override;
+    Return<void> startPublishRequest(
+        uint16_t cmd_id, const NanPublishRequest& msg,
+        startPublishRequest_cb hidl_status_cb) override;
+    Return<void> stopPublishRequest(
+        uint16_t cmd_id, uint8_t sessionId,
+        stopPublishRequest_cb hidl_status_cb) override;
+    Return<void> startSubscribeRequest(
+        uint16_t cmd_id, const NanSubscribeRequest& msg,
+        startSubscribeRequest_cb hidl_status_cb) override;
+    Return<void> stopSubscribeRequest(
+        uint16_t cmd_id, uint8_t sessionId,
+        stopSubscribeRequest_cb hidl_status_cb) override;
+    Return<void> transmitFollowupRequest(
+        uint16_t cmd_id, const NanTransmitFollowupRequest& msg,
+        transmitFollowupRequest_cb hidl_status_cb) override;
+    Return<void> createDataInterfaceRequest(
+        uint16_t cmd_id, const hidl_string& iface_name,
+        createDataInterfaceRequest_cb hidl_status_cb) override;
+    Return<void> deleteDataInterfaceRequest(
+        uint16_t cmd_id, const hidl_string& iface_name,
+        deleteDataInterfaceRequest_cb hidl_status_cb) override;
+    Return<void> initiateDataPathRequest(
+        uint16_t cmd_id, const NanInitiateDataPathRequest& msg,
+        initiateDataPathRequest_cb hidl_status_cb) override;
+    Return<void> respondToDataPathIndicationRequest(
+        uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg,
+        respondToDataPathIndicationRequest_cb hidl_status_cb) override;
+    Return<void> terminateDataPathRequest(
+        uint16_t cmd_id, uint32_t ndpInstanceId,
+        terminateDataPathRequest_cb hidl_status_cb) override;
+
+    Return<void> registerEventCallback_1_2(
+        const sp<V1_2::IWifiNanIfaceEventCallback>& callback,
+        registerEventCallback_1_2_cb hidl_status_cb) override;
+    Return<void> enableRequest_1_2(
+        uint16_t cmd_id, const NanEnableRequest& msg1,
+        const V1_2::NanConfigRequestSupplemental& msg2,
+        enableRequest_1_2_cb hidl_status_cb) override;
+    Return<void> configRequest_1_2(
+        uint16_t cmd_id, const NanConfigRequest& msg1,
+        const V1_2::NanConfigRequestSupplemental& msg2,
+        configRequest_1_2_cb hidl_status_cb) override;
+
+   private:
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, std::string> getNameInternal();
+    std::pair<WifiStatus, IfaceType> getTypeInternal();
+    WifiStatus registerEventCallbackInternal(
+        const sp<V1_0::IWifiNanIfaceEventCallback>& callback);
+    WifiStatus getCapabilitiesRequestInternal(uint16_t cmd_id);
+    WifiStatus enableRequestInternal(uint16_t cmd_id,
+                                     const NanEnableRequest& msg);
+    WifiStatus configRequestInternal(uint16_t cmd_id,
+                                     const NanConfigRequest& msg);
+    WifiStatus disableRequestInternal(uint16_t cmd_id);
+    WifiStatus startPublishRequestInternal(uint16_t cmd_id,
+                                           const NanPublishRequest& msg);
+    WifiStatus stopPublishRequestInternal(uint16_t cmd_id, uint8_t sessionId);
+    WifiStatus startSubscribeRequestInternal(uint16_t cmd_id,
+                                             const NanSubscribeRequest& msg);
+    WifiStatus stopSubscribeRequestInternal(uint16_t cmd_id, uint8_t sessionId);
+    WifiStatus transmitFollowupRequestInternal(
+        uint16_t cmd_id, const NanTransmitFollowupRequest& msg);
+    WifiStatus createDataInterfaceRequestInternal(
+        uint16_t cmd_id, const std::string& iface_name);
+    WifiStatus deleteDataInterfaceRequestInternal(
+        uint16_t cmd_id, const std::string& iface_name);
+    WifiStatus initiateDataPathRequestInternal(
+        uint16_t cmd_id, const NanInitiateDataPathRequest& msg);
+    WifiStatus respondToDataPathIndicationRequestInternal(
+        uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg);
+    WifiStatus terminateDataPathRequestInternal(uint16_t cmd_id,
+                                                uint32_t ndpInstanceId);
+
+    WifiStatus registerEventCallback_1_2Internal(
+        const sp<V1_2::IWifiNanIfaceEventCallback>& callback);
+    WifiStatus enableRequest_1_2Internal(
+        uint16_t cmd_id, const NanEnableRequest& msg1,
+        const V1_2::NanConfigRequestSupplemental& msg2);
+    WifiStatus configRequest_1_2Internal(
+        uint16_t cmd_id, const NanConfigRequest& msg,
+        const V1_2::NanConfigRequestSupplemental& msg2);
+
+    // all 1_0 and descendant callbacks
+    std::set<sp<V1_0::IWifiNanIfaceEventCallback>> getEventCallbacks();
+    // all 1_2 and descendant callbacks
+    std::set<sp<V1_2::IWifiNanIfaceEventCallback>> getEventCallbacks_1_2();
+
+    std::string ifname_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    bool is_valid_;
+    hidl_callback_util::HidlCallbackHandler<V1_0::IWifiNanIfaceEventCallback>
+        event_cb_handler_;
+    hidl_callback_util::HidlCallbackHandler<V1_2::IWifiNanIfaceEventCallback>
+        event_cb_handler_1_2_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiNanIface);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_NAN_IFACE_H_
diff --git a/wifi/1.3/default/wifi_p2p_iface.cpp b/wifi/1.3/default/wifi_p2p_iface.cpp
new file mode 100644
index 0000000..b5d5886
--- /dev/null
+++ b/wifi/1.3/default/wifi_p2p_iface.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "wifi_p2p_iface.h"
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+
+WifiP2pIface::WifiP2pIface(
+    const std::string& ifname,
+    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
+    : ifname_(ifname), legacy_hal_(legacy_hal), is_valid_(true) {}
+
+void WifiP2pIface::invalidate() {
+    legacy_hal_.reset();
+    is_valid_ = false;
+}
+
+bool WifiP2pIface::isValid() { return is_valid_; }
+
+std::string WifiP2pIface::getName() { return ifname_; }
+
+Return<void> WifiP2pIface::getName(getName_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiP2pIface::getNameInternal, hidl_status_cb);
+}
+
+Return<void> WifiP2pIface::getType(getType_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiP2pIface::getTypeInternal, hidl_status_cb);
+}
+
+std::pair<WifiStatus, std::string> WifiP2pIface::getNameInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
+}
+
+std::pair<WifiStatus, IfaceType> WifiP2pIface::getTypeInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::P2P};
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_p2p_iface.h b/wifi/1.3/default/wifi_p2p_iface.h
new file mode 100644
index 0000000..8a7207a
--- /dev/null
+++ b/wifi/1.3/default/wifi_p2p_iface.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_P2P_IFACE_H_
+#define WIFI_P2P_IFACE_H_
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.0/IWifiP2pIface.h>
+
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * HIDL interface object used to control a P2P Iface instance.
+ */
+class WifiP2pIface : public V1_0::IWifiP2pIface {
+   public:
+    WifiP2pIface(const std::string& ifname,
+                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
+    // Refer to |WifiChip::invalidate()|.
+    void invalidate();
+    bool isValid();
+    std::string getName();
+
+    // HIDL methods exposed.
+    Return<void> getName(getName_cb hidl_status_cb) override;
+    Return<void> getType(getType_cb hidl_status_cb) override;
+
+   private:
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, std::string> getNameInternal();
+    std::pair<WifiStatus, IfaceType> getTypeInternal();
+
+    std::string ifname_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    bool is_valid_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiP2pIface);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_P2P_IFACE_H_
diff --git a/wifi/1.3/default/wifi_rtt_controller.cpp b/wifi/1.3/default/wifi_rtt_controller.cpp
new file mode 100644
index 0000000..fa317e3
--- /dev/null
+++ b/wifi/1.3/default/wifi_rtt_controller.cpp
@@ -0,0 +1,275 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "hidl_struct_util.h"
+#include "wifi_rtt_controller.h"
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+
+WifiRttController::WifiRttController(
+    const std::string& iface_name, const sp<IWifiIface>& bound_iface,
+    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal)
+    : ifname_(iface_name),
+      bound_iface_(bound_iface),
+      legacy_hal_(legacy_hal),
+      is_valid_(true) {}
+
+void WifiRttController::invalidate() {
+    legacy_hal_.reset();
+    event_callbacks_.clear();
+    is_valid_ = false;
+}
+
+bool WifiRttController::isValid() { return is_valid_; }
+
+std::vector<sp<IWifiRttControllerEventCallback>>
+WifiRttController::getEventCallbacks() {
+    return event_callbacks_;
+}
+
+Return<void> WifiRttController::getBoundIface(getBoundIface_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::getBoundIfaceInternal, hidl_status_cb);
+}
+
+Return<void> WifiRttController::registerEventCallback(
+    const sp<IWifiRttControllerEventCallback>& callback,
+    registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this,
+                           WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+                           &WifiRttController::registerEventCallbackInternal,
+                           hidl_status_cb, callback);
+}
+
+Return<void> WifiRttController::rangeRequest(
+    uint32_t cmd_id, const hidl_vec<RttConfig>& rtt_configs,
+    rangeRequest_cb hidl_status_cb) {
+    return validateAndCall(this,
+                           WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+                           &WifiRttController::rangeRequestInternal,
+                           hidl_status_cb, cmd_id, rtt_configs);
+}
+
+Return<void> WifiRttController::rangeCancel(
+    uint32_t cmd_id, const hidl_vec<hidl_array<uint8_t, 6>>& addrs,
+    rangeCancel_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::rangeCancelInternal, hidl_status_cb, cmd_id, addrs);
+}
+
+Return<void> WifiRttController::getCapabilities(
+    getCapabilities_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::getCapabilitiesInternal, hidl_status_cb);
+}
+
+Return<void> WifiRttController::setLci(uint32_t cmd_id,
+                                       const RttLciInformation& lci,
+                                       setLci_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::setLciInternal, hidl_status_cb, cmd_id, lci);
+}
+
+Return<void> WifiRttController::setLcr(uint32_t cmd_id,
+                                       const RttLcrInformation& lcr,
+                                       setLcr_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::setLcrInternal, hidl_status_cb, cmd_id, lcr);
+}
+
+Return<void> WifiRttController::getResponderInfo(
+    getResponderInfo_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::getResponderInfoInternal, hidl_status_cb);
+}
+
+Return<void> WifiRttController::enableResponder(
+    uint32_t cmd_id, const WifiChannelInfo& channel_hint,
+    uint32_t max_duration_seconds, const RttResponder& info,
+    enableResponder_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::enableResponderInternal, hidl_status_cb, cmd_id,
+        channel_hint, max_duration_seconds, info);
+}
+
+Return<void> WifiRttController::disableResponder(
+    uint32_t cmd_id, disableResponder_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_RTT_CONTROLLER_INVALID,
+        &WifiRttController::disableResponderInternal, hidl_status_cb, cmd_id);
+}
+
+std::pair<WifiStatus, sp<IWifiIface>>
+WifiRttController::getBoundIfaceInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), bound_iface_};
+}
+
+WifiStatus WifiRttController::registerEventCallbackInternal(
+    const sp<IWifiRttControllerEventCallback>& callback) {
+    // TODO(b/31632518): remove the callback when the client is destroyed
+    event_callbacks_.emplace_back(callback);
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiRttController::rangeRequestInternal(
+    uint32_t cmd_id, const std::vector<RttConfig>& rtt_configs) {
+    std::vector<legacy_hal::wifi_rtt_config> legacy_configs;
+    if (!hidl_struct_util::convertHidlVectorOfRttConfigToLegacy(
+            rtt_configs, &legacy_configs)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    android::wp<WifiRttController> weak_ptr_this(this);
+    const auto& on_results_callback =
+        [weak_ptr_this](
+            legacy_hal::wifi_request_id id,
+            const std::vector<const legacy_hal::wifi_rtt_result*>& results) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            std::vector<RttResult> hidl_results;
+            if (!hidl_struct_util::convertLegacyVectorOfRttResultToHidl(
+                    results, &hidl_results)) {
+                LOG(ERROR) << "Failed to convert rtt results to HIDL structs";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                callback->onResults(id, hidl_results);
+            }
+        };
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->startRttRangeRequest(
+            ifname_, cmd_id, legacy_configs, on_results_callback);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiRttController::rangeCancelInternal(
+    uint32_t cmd_id, const std::vector<hidl_array<uint8_t, 6>>& addrs) {
+    std::vector<std::array<uint8_t, 6>> legacy_addrs;
+    for (const auto& addr : addrs) {
+        legacy_addrs.push_back(addr);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->cancelRttRangeRequest(ifname_, cmd_id,
+                                                  legacy_addrs);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, RttCapabilities>
+WifiRttController::getCapabilitiesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::wifi_rtt_capabilities legacy_caps;
+    std::tie(legacy_status, legacy_caps) =
+        legacy_hal_.lock()->getRttCapabilities(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    RttCapabilities hidl_caps;
+    if (!hidl_struct_util::convertLegacyRttCapabilitiesToHidl(legacy_caps,
+                                                              &hidl_caps)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
+}
+
+WifiStatus WifiRttController::setLciInternal(uint32_t cmd_id,
+                                             const RttLciInformation& lci) {
+    legacy_hal::wifi_lci_information legacy_lci;
+    if (!hidl_struct_util::convertHidlRttLciInformationToLegacy(lci,
+                                                                &legacy_lci)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->setRttLci(ifname_, cmd_id, legacy_lci);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiRttController::setLcrInternal(uint32_t cmd_id,
+                                             const RttLcrInformation& lcr) {
+    legacy_hal::wifi_lcr_information legacy_lcr;
+    if (!hidl_struct_util::convertHidlRttLcrInformationToLegacy(lcr,
+                                                                &legacy_lcr)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->setRttLcr(ifname_, cmd_id, legacy_lcr);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, RttResponder>
+WifiRttController::getResponderInfoInternal() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::wifi_rtt_responder legacy_responder;
+    std::tie(legacy_status, legacy_responder) =
+        legacy_hal_.lock()->getRttResponderInfo(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    RttResponder hidl_responder;
+    if (!hidl_struct_util::convertLegacyRttResponderToHidl(legacy_responder,
+                                                           &hidl_responder)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_responder};
+}
+
+WifiStatus WifiRttController::enableResponderInternal(
+    uint32_t cmd_id, const WifiChannelInfo& channel_hint,
+    uint32_t max_duration_seconds, const RttResponder& info) {
+    legacy_hal::wifi_channel_info legacy_channel_info;
+    if (!hidl_struct_util::convertHidlWifiChannelInfoToLegacy(
+            channel_hint, &legacy_channel_info)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_rtt_responder legacy_responder;
+    if (!hidl_struct_util::convertHidlRttResponderToLegacy(info,
+                                                           &legacy_responder)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->enableRttResponder(
+            ifname_, cmd_id, legacy_channel_info, max_duration_seconds,
+            legacy_responder);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiRttController::disableResponderInternal(uint32_t cmd_id) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->disableRttResponder(ifname_, cmd_id);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_rtt_controller.h b/wifi/1.3/default/wifi_rtt_controller.h
new file mode 100644
index 0000000..9798b79
--- /dev/null
+++ b/wifi/1.3/default/wifi_rtt_controller.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_RTT_CONTROLLER_H_
+#define WIFI_RTT_CONTROLLER_H_
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.0/IWifiIface.h>
+#include <android/hardware/wifi/1.0/IWifiRttController.h>
+#include <android/hardware/wifi/1.0/IWifiRttControllerEventCallback.h>
+
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+/**
+ * HIDL interface object used to control all RTT operations.
+ */
+class WifiRttController : public V1_0::IWifiRttController {
+   public:
+    WifiRttController(
+        const std::string& iface_name, const sp<IWifiIface>& bound_iface,
+        const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal);
+    // Refer to |WifiChip::invalidate()|.
+    void invalidate();
+    bool isValid();
+    std::vector<sp<IWifiRttControllerEventCallback>> getEventCallbacks();
+
+    // HIDL methods exposed.
+    Return<void> getBoundIface(getBoundIface_cb hidl_status_cb) override;
+    Return<void> registerEventCallback(
+        const sp<IWifiRttControllerEventCallback>& callback,
+        registerEventCallback_cb hidl_status_cb) override;
+    Return<void> rangeRequest(uint32_t cmd_id,
+                              const hidl_vec<RttConfig>& rtt_configs,
+                              rangeRequest_cb hidl_status_cb) override;
+    Return<void> rangeCancel(uint32_t cmd_id,
+                             const hidl_vec<hidl_array<uint8_t, 6>>& addrs,
+                             rangeCancel_cb hidl_status_cb) override;
+    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
+    Return<void> setLci(uint32_t cmd_id, const RttLciInformation& lci,
+                        setLci_cb hidl_status_cb) override;
+    Return<void> setLcr(uint32_t cmd_id, const RttLcrInformation& lcr,
+                        setLcr_cb hidl_status_cb) override;
+    Return<void> getResponderInfo(getResponderInfo_cb hidl_status_cb) override;
+    Return<void> enableResponder(uint32_t cmd_id,
+                                 const WifiChannelInfo& channel_hint,
+                                 uint32_t max_duration_seconds,
+                                 const RttResponder& info,
+                                 enableResponder_cb hidl_status_cb) override;
+    Return<void> disableResponder(uint32_t cmd_id,
+                                  disableResponder_cb hidl_status_cb) override;
+
+   private:
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, sp<IWifiIface>> getBoundIfaceInternal();
+    WifiStatus registerEventCallbackInternal(
+        const sp<IWifiRttControllerEventCallback>& callback);
+    WifiStatus rangeRequestInternal(uint32_t cmd_id,
+                                    const std::vector<RttConfig>& rtt_configs);
+    WifiStatus rangeCancelInternal(
+        uint32_t cmd_id, const std::vector<hidl_array<uint8_t, 6>>& addrs);
+    std::pair<WifiStatus, RttCapabilities> getCapabilitiesInternal();
+    WifiStatus setLciInternal(uint32_t cmd_id, const RttLciInformation& lci);
+    WifiStatus setLcrInternal(uint32_t cmd_id, const RttLcrInformation& lcr);
+    std::pair<WifiStatus, RttResponder> getResponderInfoInternal();
+    WifiStatus enableResponderInternal(uint32_t cmd_id,
+                                       const WifiChannelInfo& channel_hint,
+                                       uint32_t max_duration_seconds,
+                                       const RttResponder& info);
+    WifiStatus disableResponderInternal(uint32_t cmd_id);
+
+    std::string ifname_;
+    sp<IWifiIface> bound_iface_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::vector<sp<IWifiRttControllerEventCallback>> event_callbacks_;
+    bool is_valid_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiRttController);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_RTT_CONTROLLER_H_
diff --git a/wifi/1.3/default/wifi_sta_iface.cpp b/wifi/1.3/default/wifi_sta_iface.cpp
new file mode 100644
index 0000000..17f3e3d
--- /dev/null
+++ b/wifi/1.3/default/wifi_sta_iface.cpp
@@ -0,0 +1,647 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "hidl_struct_util.h"
+#include "wifi_sta_iface.h"
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+
+WifiStaIface::WifiStaIface(
+    const std::string& ifname,
+    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+    const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util)
+    : ifname_(ifname),
+      legacy_hal_(legacy_hal),
+      iface_util_(iface_util),
+      is_valid_(true) {
+    // Turn on DFS channel usage for STA iface.
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->setDfsFlag(ifname_, true);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR)
+            << "Failed to set DFS flag; DFS channels may be unavailable.";
+    }
+}
+
+void WifiStaIface::invalidate() {
+    legacy_hal_.reset();
+    event_cb_handler_.invalidate();
+    is_valid_ = false;
+}
+
+bool WifiStaIface::isValid() { return is_valid_; }
+
+std::string WifiStaIface::getName() { return ifname_; }
+
+std::set<sp<IWifiStaIfaceEventCallback>> WifiStaIface::getEventCallbacks() {
+    return event_cb_handler_.getCallbacks();
+}
+
+Return<void> WifiStaIface::getName(getName_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getNameInternal, hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getType(getType_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getTypeInternal, hidl_status_cb);
+}
+
+Return<void> WifiStaIface::registerEventCallback(
+    const sp<IWifiStaIfaceEventCallback>& callback,
+    registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::registerEventCallbackInternal,
+                           hidl_status_cb, callback);
+}
+
+Return<void> WifiStaIface::getCapabilities(getCapabilities_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getCapabilitiesInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getApfPacketFilterCapabilities(
+    getApfPacketFilterCapabilities_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+        &WifiStaIface::getApfPacketFilterCapabilitiesInternal, hidl_status_cb);
+}
+
+Return<void> WifiStaIface::installApfPacketFilter(
+    uint32_t cmd_id, const hidl_vec<uint8_t>& program,
+    installApfPacketFilter_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::installApfPacketFilterInternal,
+                           hidl_status_cb, cmd_id, program);
+}
+
+Return<void> WifiStaIface::readApfPacketFilterData(
+    readApfPacketFilterData_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::readApfPacketFilterDataInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getBackgroundScanCapabilities(
+    getBackgroundScanCapabilities_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getBackgroundScanCapabilitiesInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getValidFrequenciesForBand(
+    WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getValidFrequenciesForBandInternal,
+                           hidl_status_cb, band);
+}
+
+Return<void> WifiStaIface::startBackgroundScan(
+    uint32_t cmd_id, const StaBackgroundScanParameters& params,
+    startBackgroundScan_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::startBackgroundScanInternal,
+                           hidl_status_cb, cmd_id, params);
+}
+
+Return<void> WifiStaIface::stopBackgroundScan(
+    uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::stopBackgroundScanInternal,
+                           hidl_status_cb, cmd_id);
+}
+
+Return<void> WifiStaIface::enableLinkLayerStatsCollection(
+    bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+        &WifiStaIface::enableLinkLayerStatsCollectionInternal, hidl_status_cb,
+        debug);
+}
+
+Return<void> WifiStaIface::disableLinkLayerStatsCollection(
+    disableLinkLayerStatsCollection_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+        &WifiStaIface::disableLinkLayerStatsCollectionInternal, hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getLinkLayerStats(
+    getLinkLayerStats_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getLinkLayerStatsInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getLinkLayerStats_1_3(
+    getLinkLayerStats_1_3_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getLinkLayerStatsInternal_1_3,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::startRssiMonitoring(
+    uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi,
+    startRssiMonitoring_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::startRssiMonitoringInternal,
+                           hidl_status_cb, cmd_id, max_rssi, min_rssi);
+}
+
+Return<void> WifiStaIface::stopRssiMonitoring(
+    uint32_t cmd_id, stopRssiMonitoring_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::stopRssiMonitoringInternal,
+                           hidl_status_cb, cmd_id);
+}
+
+Return<void> WifiStaIface::getRoamingCapabilities(
+    getRoamingCapabilities_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getRoamingCapabilitiesInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::configureRoaming(
+    const StaRoamingConfig& config, configureRoaming_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::configureRoamingInternal,
+                           hidl_status_cb, config);
+}
+
+Return<void> WifiStaIface::setRoamingState(StaRoamingState state,
+                                           setRoamingState_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::setRoamingStateInternal,
+                           hidl_status_cb, state);
+}
+
+Return<void> WifiStaIface::enableNdOffload(bool enable,
+                                           enableNdOffload_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::enableNdOffloadInternal,
+                           hidl_status_cb, enable);
+}
+
+Return<void> WifiStaIface::startSendingKeepAlivePackets(
+    uint32_t cmd_id, const hidl_vec<uint8_t>& ip_packet_data,
+    uint16_t ether_type, const hidl_array<uint8_t, 6>& src_address,
+    const hidl_array<uint8_t, 6>& dst_address, uint32_t period_in_ms,
+    startSendingKeepAlivePackets_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::startSendingKeepAlivePacketsInternal,
+                           hidl_status_cb, cmd_id, ip_packet_data, ether_type,
+                           src_address, dst_address, period_in_ms);
+}
+
+Return<void> WifiStaIface::stopSendingKeepAlivePackets(
+    uint32_t cmd_id, stopSendingKeepAlivePackets_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::stopSendingKeepAlivePacketsInternal,
+                           hidl_status_cb, cmd_id);
+}
+
+Return<void> WifiStaIface::setScanningMacOui(
+    const hidl_array<uint8_t, 3>& oui, setScanningMacOui_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::setScanningMacOuiInternal,
+                           hidl_status_cb, oui);
+}
+
+Return<void> WifiStaIface::startDebugPacketFateMonitoring(
+    startDebugPacketFateMonitoring_cb hidl_status_cb) {
+    return validateAndCall(
+        this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+        &WifiStaIface::startDebugPacketFateMonitoringInternal, hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getDebugTxPacketFates(
+    getDebugTxPacketFates_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getDebugTxPacketFatesInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getDebugRxPacketFates(
+    getDebugRxPacketFates_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getDebugRxPacketFatesInternal,
+                           hidl_status_cb);
+}
+
+Return<void> WifiStaIface::setMacAddress(const hidl_array<uint8_t, 6>& mac,
+                                         setMacAddress_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::setMacAddressInternal, hidl_status_cb,
+                           mac);
+}
+
+Return<void> WifiStaIface::getFactoryMacAddress(
+    getFactoryMacAddress_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiStaIface::getFactoryMacAddressInternal,
+                           hidl_status_cb);
+}
+
+std::pair<WifiStatus, std::string> WifiStaIface::getNameInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
+}
+
+std::pair<WifiStatus, IfaceType> WifiStaIface::getTypeInternal() {
+    return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::STA};
+}
+
+WifiStatus WifiStaIface::registerEventCallbackInternal(
+    const sp<IWifiStaIfaceEventCallback>& callback) {
+    if (!event_cb_handler_.addCallback(callback)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, uint32_t> WifiStaIface::getCapabilitiesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    uint32_t legacy_feature_set;
+    std::tie(legacy_status, legacy_feature_set) =
+        legacy_hal_.lock()->getSupportedFeatureSet(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), 0};
+    }
+    uint32_t legacy_logger_feature_set;
+    std::tie(legacy_status, legacy_logger_feature_set) =
+        legacy_hal_.lock()->getLoggerSupportedFeatureSet(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        // some devices don't support querying logger feature set
+        legacy_logger_feature_set = 0;
+    }
+    uint32_t hidl_caps;
+    if (!hidl_struct_util::convertLegacyFeaturesToHidlStaCapabilities(
+            legacy_feature_set, legacy_logger_feature_set, &hidl_caps)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), 0};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
+}
+
+std::pair<WifiStatus, StaApfPacketFilterCapabilities>
+WifiStaIface::getApfPacketFilterCapabilitiesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::PacketFilterCapabilities legacy_caps;
+    std::tie(legacy_status, legacy_caps) =
+        legacy_hal_.lock()->getPacketFilterCapabilities(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    StaApfPacketFilterCapabilities hidl_caps;
+    if (!hidl_struct_util::convertLegacyApfCapabilitiesToHidl(legacy_caps,
+                                                              &hidl_caps)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
+}
+
+WifiStatus WifiStaIface::installApfPacketFilterInternal(
+    uint32_t /* cmd_id */, const std::vector<uint8_t>& program) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->setPacketFilter(ifname_, program);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, std::vector<uint8_t>>
+WifiStaIface::readApfPacketFilterDataInternal() {
+    const std::pair<legacy_hal::wifi_error, std::vector<uint8_t>>
+        legacy_status_and_data =
+            legacy_hal_.lock()->readApfPacketFilterData(ifname_);
+    return {createWifiStatusFromLegacyError(legacy_status_and_data.first),
+            std::move(legacy_status_and_data.second)};
+}
+
+std::pair<WifiStatus, StaBackgroundScanCapabilities>
+WifiStaIface::getBackgroundScanCapabilitiesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::wifi_gscan_capabilities legacy_caps;
+    std::tie(legacy_status, legacy_caps) =
+        legacy_hal_.lock()->getGscanCapabilities(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    StaBackgroundScanCapabilities hidl_caps;
+    if (!hidl_struct_util::convertLegacyGscanCapabilitiesToHidl(legacy_caps,
+                                                                &hidl_caps)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
+}
+
+std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
+WifiStaIface::getValidFrequenciesForBandInternal(WifiBand band) {
+    static_assert(sizeof(WifiChannelInMhz) == sizeof(uint32_t),
+                  "Size mismatch");
+    legacy_hal::wifi_error legacy_status;
+    std::vector<uint32_t> valid_frequencies;
+    std::tie(legacy_status, valid_frequencies) =
+        legacy_hal_.lock()->getValidFrequenciesForBand(
+            ifname_, hidl_struct_util::convertHidlWifiBandToLegacy(band));
+    return {createWifiStatusFromLegacyError(legacy_status), valid_frequencies};
+}
+
+WifiStatus WifiStaIface::startBackgroundScanInternal(
+    uint32_t cmd_id, const StaBackgroundScanParameters& params) {
+    legacy_hal::wifi_scan_cmd_params legacy_params;
+    if (!hidl_struct_util::convertHidlGscanParamsToLegacy(params,
+                                                          &legacy_params)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    android::wp<WifiStaIface> weak_ptr_this(this);
+    const auto& on_failure_callback =
+        [weak_ptr_this](legacy_hal::wifi_request_id id) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->onBackgroundScanFailure(id).isOk()) {
+                    LOG(ERROR)
+                        << "Failed to invoke onBackgroundScanFailure callback";
+                }
+            }
+        };
+    const auto& on_results_callback =
+        [weak_ptr_this](
+            legacy_hal::wifi_request_id id,
+            const std::vector<legacy_hal::wifi_cached_scan_results>& results) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            std::vector<StaScanData> hidl_scan_datas;
+            if (!hidl_struct_util::
+                    convertLegacyVectorOfCachedGscanResultsToHidl(
+                        results, &hidl_scan_datas)) {
+                LOG(ERROR) << "Failed to convert scan results to HIDL structs";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->onBackgroundScanResults(id, hidl_scan_datas)
+                         .isOk()) {
+                    LOG(ERROR)
+                        << "Failed to invoke onBackgroundScanResults callback";
+                }
+            }
+        };
+    const auto& on_full_result_callback = [weak_ptr_this](
+                                              legacy_hal::wifi_request_id id,
+                                              const legacy_hal::
+                                                  wifi_scan_result* result,
+                                              uint32_t buckets_scanned) {
+        const auto shared_ptr_this = weak_ptr_this.promote();
+        if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+            LOG(ERROR) << "Callback invoked on an invalid object";
+            return;
+        }
+        StaScanResult hidl_scan_result;
+        if (!hidl_struct_util::convertLegacyGscanResultToHidl(
+                *result, true, &hidl_scan_result)) {
+            LOG(ERROR) << "Failed to convert full scan results to HIDL structs";
+            return;
+        }
+        for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+            if (!callback
+                     ->onBackgroundFullScanResult(id, buckets_scanned,
+                                                  hidl_scan_result)
+                     .isOk()) {
+                LOG(ERROR)
+                    << "Failed to invoke onBackgroundFullScanResult callback";
+            }
+        }
+    };
+    legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->startGscan(
+        ifname_, cmd_id, legacy_params, on_failure_callback,
+        on_results_callback, on_full_result_callback);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::stopBackgroundScanInternal(uint32_t cmd_id) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->stopGscan(ifname_, cmd_id);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::enableLinkLayerStatsCollectionInternal(bool debug) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->enableLinkLayerStats(ifname_, debug);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::disableLinkLayerStatsCollectionInternal() {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->disableLinkLayerStats(ifname_);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, V1_0::StaLinkLayerStats>
+WifiStaIface::getLinkLayerStatsInternal() {
+    return {createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED), {}};
+}
+
+std::pair<WifiStatus, V1_3::StaLinkLayerStats>
+WifiStaIface::getLinkLayerStatsInternal_1_3() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::LinkLayerStats legacy_stats;
+    std::tie(legacy_status, legacy_stats) =
+        legacy_hal_.lock()->getLinkLayerStats(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    V1_3::StaLinkLayerStats hidl_stats;
+    if (!hidl_struct_util::convertLegacyLinkLayerStatsToHidl(legacy_stats,
+                                                             &hidl_stats)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_stats};
+}
+
+WifiStatus WifiStaIface::startRssiMonitoringInternal(uint32_t cmd_id,
+                                                     int32_t max_rssi,
+                                                     int32_t min_rssi) {
+    android::wp<WifiStaIface> weak_ptr_this(this);
+    const auto& on_threshold_breached_callback =
+        [weak_ptr_this](legacy_hal::wifi_request_id id,
+                        std::array<uint8_t, 6> bssid, int8_t rssi) {
+            const auto shared_ptr_this = weak_ptr_this.promote();
+            if (!shared_ptr_this.get() || !shared_ptr_this->isValid()) {
+                LOG(ERROR) << "Callback invoked on an invalid object";
+                return;
+            }
+            for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
+                if (!callback->onRssiThresholdBreached(id, bssid, rssi)
+                         .isOk()) {
+                    LOG(ERROR)
+                        << "Failed to invoke onRssiThresholdBreached callback";
+                }
+            }
+        };
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->startRssiMonitoring(ifname_, cmd_id, max_rssi,
+                                                min_rssi,
+                                                on_threshold_breached_callback);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::stopRssiMonitoringInternal(uint32_t cmd_id) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->stopRssiMonitoring(ifname_, cmd_id);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, StaRoamingCapabilities>
+WifiStaIface::getRoamingCapabilitiesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    legacy_hal::wifi_roaming_capabilities legacy_caps;
+    std::tie(legacy_status, legacy_caps) =
+        legacy_hal_.lock()->getRoamingCapabilities(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    StaRoamingCapabilities hidl_caps;
+    if (!hidl_struct_util::convertLegacyRoamingCapabilitiesToHidl(legacy_caps,
+                                                                  &hidl_caps)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_caps};
+}
+
+WifiStatus WifiStaIface::configureRoamingInternal(
+    const StaRoamingConfig& config) {
+    legacy_hal::wifi_roaming_config legacy_config;
+    if (!hidl_struct_util::convertHidlRoamingConfigToLegacy(config,
+                                                            &legacy_config)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->configureRoaming(ifname_, legacy_config);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::setRoamingStateInternal(StaRoamingState state) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->enableFirmwareRoaming(
+            ifname_, hidl_struct_util::convertHidlRoamingStateToLegacy(state));
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::enableNdOffloadInternal(bool enable) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->configureNdOffload(ifname_, enable);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::startSendingKeepAlivePacketsInternal(
+    uint32_t cmd_id, const std::vector<uint8_t>& ip_packet_data,
+    uint16_t /* ether_type */, const std::array<uint8_t, 6>& src_address,
+    const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->startSendingOffloadedPacket(
+            ifname_, cmd_id, ip_packet_data, src_address, dst_address,
+            period_in_ms);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::stopSendingKeepAlivePacketsInternal(uint32_t cmd_id) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->stopSendingOffloadedPacket(ifname_, cmd_id);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::setScanningMacOuiInternal(
+    const std::array<uint8_t, 3>& oui) {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->setScanningMacOui(ifname_, oui);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiStaIface::startDebugPacketFateMonitoringInternal() {
+    legacy_hal::wifi_error legacy_status =
+        legacy_hal_.lock()->startPktFateMonitoring(ifname_);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
+WifiStaIface::getDebugTxPacketFatesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    std::vector<legacy_hal::wifi_tx_report> legacy_fates;
+    std::tie(legacy_status, legacy_fates) =
+        legacy_hal_.lock()->getTxPktFates(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    std::vector<WifiDebugTxPacketFateReport> hidl_fates;
+    if (!hidl_struct_util::convertLegacyVectorOfDebugTxPacketFateToHidl(
+            legacy_fates, &hidl_fates)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_fates};
+}
+
+std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
+WifiStaIface::getDebugRxPacketFatesInternal() {
+    legacy_hal::wifi_error legacy_status;
+    std::vector<legacy_hal::wifi_rx_report> legacy_fates;
+    std::tie(legacy_status, legacy_fates) =
+        legacy_hal_.lock()->getRxPktFates(ifname_);
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        return {createWifiStatusFromLegacyError(legacy_status), {}};
+    }
+    std::vector<WifiDebugRxPacketFateReport> hidl_fates;
+    if (!hidl_struct_util::convertLegacyVectorOfDebugRxPacketFateToHidl(
+            legacy_fates, &hidl_fates)) {
+        return {createWifiStatus(WifiStatusCode::ERROR_UNKNOWN), {}};
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), hidl_fates};
+}
+
+WifiStatus WifiStaIface::setMacAddressInternal(
+    const std::array<uint8_t, 6>& mac) {
+    bool status = iface_util_.lock()->setMacAddress(ifname_, mac);
+    if (!status) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, std::array<uint8_t, 6>>
+WifiStaIface::getFactoryMacAddressInternal() {
+    std::array<uint8_t, 6> mac =
+        iface_util_.lock()->getFactoryMacAddress(ifname_);
+    return {createWifiStatus(WifiStatusCode::SUCCESS), mac};
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_sta_iface.h b/wifi/1.3/default/wifi_sta_iface.h
new file mode 100644
index 0000000..9224939
--- /dev/null
+++ b/wifi/1.3/default/wifi_sta_iface.h
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_STA_IFACE_H_
+#define WIFI_STA_IFACE_H_
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.0/IWifiStaIfaceEventCallback.h>
+#include <android/hardware/wifi/1.3/IWifiStaIface.h>
+
+#include "hidl_callback_util.h"
+#include "wifi_iface_util.h"
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * HIDL interface object used to control a STA Iface instance.
+ */
+class WifiStaIface : public V1_3::IWifiStaIface {
+   public:
+    WifiStaIface(const std::string& ifname,
+                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+                 const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util);
+    // Refer to |WifiChip::invalidate()|.
+    void invalidate();
+    bool isValid();
+    std::set<sp<IWifiStaIfaceEventCallback>> getEventCallbacks();
+    std::string getName();
+
+    // HIDL methods exposed.
+    Return<void> getName(getName_cb hidl_status_cb) override;
+    Return<void> getType(getType_cb hidl_status_cb) override;
+    Return<void> registerEventCallback(
+        const sp<IWifiStaIfaceEventCallback>& callback,
+        registerEventCallback_cb hidl_status_cb) override;
+    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
+    Return<void> getApfPacketFilterCapabilities(
+        getApfPacketFilterCapabilities_cb hidl_status_cb) override;
+    Return<void> installApfPacketFilter(
+        uint32_t cmd_id, const hidl_vec<uint8_t>& program,
+        installApfPacketFilter_cb hidl_status_cb) override;
+    Return<void> readApfPacketFilterData(
+        readApfPacketFilterData_cb hidl_status_cb) override;
+    Return<void> getBackgroundScanCapabilities(
+        getBackgroundScanCapabilities_cb hidl_status_cb) override;
+    Return<void> getValidFrequenciesForBand(
+        WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) override;
+    Return<void> startBackgroundScan(
+        uint32_t cmd_id, const StaBackgroundScanParameters& params,
+        startBackgroundScan_cb hidl_status_cb) override;
+    Return<void> stopBackgroundScan(
+        uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) override;
+    Return<void> enableLinkLayerStatsCollection(
+        bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) override;
+    Return<void> disableLinkLayerStatsCollection(
+        disableLinkLayerStatsCollection_cb hidl_status_cb) override;
+    Return<void> getLinkLayerStats(
+        getLinkLayerStats_cb hidl_status_cb) override;
+    Return<void> getLinkLayerStats_1_3(
+        getLinkLayerStats_1_3_cb hidl_status_cb) override;
+    Return<void> startRssiMonitoring(
+        uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi,
+        startRssiMonitoring_cb hidl_status_cb) override;
+    Return<void> stopRssiMonitoring(
+        uint32_t cmd_id, stopRssiMonitoring_cb hidl_status_cb) override;
+    Return<void> getRoamingCapabilities(
+        getRoamingCapabilities_cb hidl_status_cb) override;
+    Return<void> configureRoaming(const StaRoamingConfig& config,
+                                  configureRoaming_cb hidl_status_cb) override;
+    Return<void> setRoamingState(StaRoamingState state,
+                                 setRoamingState_cb hidl_status_cb) override;
+    Return<void> enableNdOffload(bool enable,
+                                 enableNdOffload_cb hidl_status_cb) override;
+    Return<void> startSendingKeepAlivePackets(
+        uint32_t cmd_id, const hidl_vec<uint8_t>& ip_packet_data,
+        uint16_t ether_type, const hidl_array<uint8_t, 6>& src_address,
+        const hidl_array<uint8_t, 6>& dst_address, uint32_t period_in_ms,
+        startSendingKeepAlivePackets_cb hidl_status_cb) override;
+    Return<void> stopSendingKeepAlivePackets(
+        uint32_t cmd_id,
+        stopSendingKeepAlivePackets_cb hidl_status_cb) override;
+    Return<void> setScanningMacOui(
+        const hidl_array<uint8_t, 3>& oui,
+        setScanningMacOui_cb hidl_status_cb) override;
+    Return<void> startDebugPacketFateMonitoring(
+        startDebugPacketFateMonitoring_cb hidl_status_cb) override;
+    Return<void> getDebugTxPacketFates(
+        getDebugTxPacketFates_cb hidl_status_cb) override;
+    Return<void> getDebugRxPacketFates(
+        getDebugRxPacketFates_cb hidl_status_cb) override;
+    Return<void> setMacAddress(const hidl_array<uint8_t, 6>& mac,
+                               setMacAddress_cb hidl_status_cb) override;
+    Return<void> getFactoryMacAddress(
+        getFactoryMacAddress_cb hidl_status_cb) override;
+
+   private:
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, std::string> getNameInternal();
+    std::pair<WifiStatus, IfaceType> getTypeInternal();
+    WifiStatus registerEventCallbackInternal(
+        const sp<IWifiStaIfaceEventCallback>& callback);
+    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal();
+    std::pair<WifiStatus, StaApfPacketFilterCapabilities>
+    getApfPacketFilterCapabilitiesInternal();
+    WifiStatus installApfPacketFilterInternal(
+        uint32_t cmd_id, const std::vector<uint8_t>& program);
+    std::pair<WifiStatus, std::vector<uint8_t>>
+    readApfPacketFilterDataInternal();
+    std::pair<WifiStatus, StaBackgroundScanCapabilities>
+    getBackgroundScanCapabilitiesInternal();
+    std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
+    getValidFrequenciesForBandInternal(WifiBand band);
+    WifiStatus startBackgroundScanInternal(
+        uint32_t cmd_id, const StaBackgroundScanParameters& params);
+    WifiStatus stopBackgroundScanInternal(uint32_t cmd_id);
+    WifiStatus enableLinkLayerStatsCollectionInternal(bool debug);
+    WifiStatus disableLinkLayerStatsCollectionInternal();
+    std::pair<WifiStatus, V1_0::StaLinkLayerStats> getLinkLayerStatsInternal();
+    std::pair<WifiStatus, V1_3::StaLinkLayerStats>
+    getLinkLayerStatsInternal_1_3();
+    WifiStatus startRssiMonitoringInternal(uint32_t cmd_id, int32_t max_rssi,
+                                           int32_t min_rssi);
+    WifiStatus stopRssiMonitoringInternal(uint32_t cmd_id);
+    std::pair<WifiStatus, StaRoamingCapabilities>
+    getRoamingCapabilitiesInternal();
+    WifiStatus configureRoamingInternal(const StaRoamingConfig& config);
+    WifiStatus setRoamingStateInternal(StaRoamingState state);
+    WifiStatus enableNdOffloadInternal(bool enable);
+    WifiStatus startSendingKeepAlivePacketsInternal(
+        uint32_t cmd_id, const std::vector<uint8_t>& ip_packet_data,
+        uint16_t ether_type, const std::array<uint8_t, 6>& src_address,
+        const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms);
+    WifiStatus stopSendingKeepAlivePacketsInternal(uint32_t cmd_id);
+    WifiStatus setScanningMacOuiInternal(const std::array<uint8_t, 3>& oui);
+    WifiStatus startDebugPacketFateMonitoringInternal();
+    std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
+    getDebugTxPacketFatesInternal();
+    std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
+    getDebugRxPacketFatesInternal();
+    WifiStatus setMacAddressInternal(const std::array<uint8_t, 6>& mac);
+    std::pair<WifiStatus, std::array<uint8_t, 6>>
+    getFactoryMacAddressInternal();
+
+    std::string ifname_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::weak_ptr<iface_util::WifiIfaceUtil> iface_util_;
+    bool is_valid_;
+    hidl_callback_util::HidlCallbackHandler<IWifiStaIfaceEventCallback>
+        event_cb_handler_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiStaIface);
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_STA_IFACE_H_
diff --git a/wifi/1.3/default/wifi_status_util.cpp b/wifi/1.3/default/wifi_status_util.cpp
new file mode 100644
index 0000000..0a5bb13
--- /dev/null
+++ b/wifi/1.3/default/wifi_status_util.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "wifi_status_util.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+
+std::string legacyErrorToString(legacy_hal::wifi_error error) {
+    switch (error) {
+        case legacy_hal::WIFI_SUCCESS:
+            return "SUCCESS";
+        case legacy_hal::WIFI_ERROR_UNINITIALIZED:
+            return "UNINITIALIZED";
+        case legacy_hal::WIFI_ERROR_NOT_AVAILABLE:
+            return "NOT_AVAILABLE";
+        case legacy_hal::WIFI_ERROR_NOT_SUPPORTED:
+            return "NOT_SUPPORTED";
+        case legacy_hal::WIFI_ERROR_INVALID_ARGS:
+            return "INVALID_ARGS";
+        case legacy_hal::WIFI_ERROR_INVALID_REQUEST_ID:
+            return "INVALID_REQUEST_ID";
+        case legacy_hal::WIFI_ERROR_TIMED_OUT:
+            return "TIMED_OUT";
+        case legacy_hal::WIFI_ERROR_TOO_MANY_REQUESTS:
+            return "TOO_MANY_REQUESTS";
+        case legacy_hal::WIFI_ERROR_OUT_OF_MEMORY:
+            return "OUT_OF_MEMORY";
+        case legacy_hal::WIFI_ERROR_BUSY:
+            return "BUSY";
+        case legacy_hal::WIFI_ERROR_UNKNOWN:
+            return "UNKNOWN";
+    }
+}
+
+WifiStatus createWifiStatus(WifiStatusCode code,
+                            const std::string& description) {
+    return {code, description};
+}
+
+WifiStatus createWifiStatus(WifiStatusCode code) {
+    return createWifiStatus(code, "");
+}
+
+WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error,
+                                           const std::string& desc) {
+    switch (error) {
+        case legacy_hal::WIFI_ERROR_UNINITIALIZED:
+        case legacy_hal::WIFI_ERROR_NOT_AVAILABLE:
+            return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE, desc);
+
+        case legacy_hal::WIFI_ERROR_NOT_SUPPORTED:
+            return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED, desc);
+
+        case legacy_hal::WIFI_ERROR_INVALID_ARGS:
+        case legacy_hal::WIFI_ERROR_INVALID_REQUEST_ID:
+            return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS, desc);
+
+        case legacy_hal::WIFI_ERROR_TIMED_OUT:
+            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN,
+                                    desc + ", timed out");
+
+        case legacy_hal::WIFI_ERROR_TOO_MANY_REQUESTS:
+            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN,
+                                    desc + ", too many requests");
+
+        case legacy_hal::WIFI_ERROR_OUT_OF_MEMORY:
+            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN,
+                                    desc + ", out of memory");
+
+        case legacy_hal::WIFI_ERROR_BUSY:
+            return createWifiStatus(WifiStatusCode::ERROR_BUSY);
+
+        case legacy_hal::WIFI_ERROR_NONE:
+            return createWifiStatus(WifiStatusCode::SUCCESS, desc);
+
+        case legacy_hal::WIFI_ERROR_UNKNOWN:
+            return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN, "unknown");
+    }
+}
+
+WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error) {
+    return createWifiStatusFromLegacyError(error, "");
+}
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.3/default/wifi_status_util.h b/wifi/1.3/default/wifi_status_util.h
new file mode 100644
index 0000000..bc8baa9
--- /dev/null
+++ b/wifi/1.3/default/wifi_status_util.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_STATUS_UTIL_H_
+#define WIFI_STATUS_UTIL_H_
+
+#include <android/hardware/wifi/1.0/IWifi.h>
+
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_3 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+std::string legacyErrorToString(legacy_hal::wifi_error error);
+WifiStatus createWifiStatus(WifiStatusCode code,
+                            const std::string& description);
+WifiStatus createWifiStatus(WifiStatusCode code);
+WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error,
+                                           const std::string& description);
+WifiStatus createWifiStatusFromLegacyError(legacy_hal::wifi_error error);
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_STATUS_UTIL_H_
diff --git a/wifi/1.3/types.hal b/wifi/1.3/types.hal
new file mode 100644
index 0000000..3b292b0
--- /dev/null
+++ b/wifi/1.3/types.hal
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi@1.3;
+
+import @1.0::StaLinkLayerRadioStats;
+import @1.0::StaLinkLayerIfaceStats;
+import @1.0::TimeStampInMs;
+import @1.0::WifiChannelInfo;
+
+struct WifiChannelStats {
+    /**
+    * Channel information.
+    */
+    WifiChannelInfo channel;
+    /**
+     * Total time for which the radio is awake on this channel.
+     */
+    uint32_t onTimeInMs;
+    /**
+     * Total time for which CCA is held busy on this channel.
+     */
+    uint32_t ccaBusyTimeInMs;
+};
+
+struct StaLinkLayerRadioStats {
+    /**
+     * Baseline information as defined in HAL 1.0.
+     */
+    @1.0::StaLinkLayerRadioStats V1_0;
+
+    /**
+     * Total time for which the radio is awake due to NAN scan since boot or crash.
+     */
+    uint32_t onTimeInMsForNanScan;
+
+    /**
+     * Total time for which the radio is awake due to background scan since boot or crash.
+     */
+    uint32_t onTimeInMsForBgScan;
+
+    /**
+     * Total time for which the radio is awake due to roam scan since boot or crash.
+     */
+    uint32_t onTimeInMsForRoamScan;
+
+    /**
+     * Total time for which the radio is awake due to PNO scan since boot or crash.
+     */
+    uint32_t onTimeInMsForPnoScan;
+
+    /**
+     * Total time for which the radio is awake due to Hotspot 2.0 scans and GAS exchange since boot
+     * or crash.
+     */
+    uint32_t onTimeInMsForHs20Scan;
+
+    /**
+     * List of channel stats associated with this radio
+     */
+    vec<WifiChannelStats> channelStats;
+};
+
+/**
+ * Link layer stats retrieved via |getLinkLayerStats|.
+ */
+struct StaLinkLayerStats {
+    StaLinkLayerIfaceStats iface;
+    vec<StaLinkLayerRadioStats> radios;
+    /**
+     * TimeStamp for each stats sample.
+     * This is the absolute milliseconds from boot when these stats were
+     * sampled.
+     */
+    TimeStampInMs timeStampInMs;
+};
\ No newline at end of file
diff --git a/wifi/1.2/default/OWNERS b/wifi/1.3/vts/OWNERS
similarity index 100%
copy from wifi/1.2/default/OWNERS
copy to wifi/1.3/vts/OWNERS
diff --git a/wifi/1.3/vts/functional/Android.bp b/wifi/1.3/vts/functional/Android.bp
new file mode 100644
index 0000000..53c8f08
--- /dev/null
+++ b/wifi/1.3/vts/functional/Android.bp
@@ -0,0 +1,32 @@
+//
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalWifiV1_3TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalWifiV1_3TargetTest.cpp",
+        "wifi_chip_hidl_test.cpp",
+        "wifi_sta_iface_hidl_test.cpp",
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "android.hardware.wifi@1.0",
+        "android.hardware.wifi@1.1",
+        "android.hardware.wifi@1.2",
+        "android.hardware.wifi@1.3",
+    ],
+}
diff --git a/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp b/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp
new file mode 100644
index 0000000..faf426e
--- /dev/null
+++ b/wifi/1.3/vts/functional/VtsHalWifiV1_3TargetTest.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android/hardware/wifi/1.3/IWifi.h>
+
+#include "wifi_hidl_test_utils.h"
+
+using ::android::hardware::wifi::V1_3::IWifi;
+
+// Test environment for Wifi HIDL HAL.
+class WifiHidlEnvironment_1_3 : public WifiHidlEnvironment {
+   public:
+    // get the test environment singleton
+    static WifiHidlEnvironment_1_3* Instance() {
+        static WifiHidlEnvironment_1_3* instance = new WifiHidlEnvironment_1_3;
+        return instance;
+    }
+
+    virtual void registerTestServices() override {
+        registerTestService<android::hardware::wifi::V1_3::IWifi>();
+    }
+
+   private:
+    WifiHidlEnvironment_1_3() {}
+};
+
+WifiHidlEnvironment_1_3* gEnv = WifiHidlEnvironment_1_3::Instance();
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    gEnv->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/wifi/1.3/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.3/vts/functional/wifi_chip_hidl_test.cpp
new file mode 100644
index 0000000..d980fcb
--- /dev/null
+++ b/wifi/1.3/vts/functional/wifi_chip_hidl_test.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include <android/hardware/wifi/1.3/IWifiChip.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include "wifi_hidl_call_util.h"
+#include "wifi_hidl_test_utils.h"
+
+using ::android::sp;
+using ::android::hardware::wifi::V1_0::ChipModeId;
+using ::android::hardware::wifi::V1_0::IfaceType;
+using ::android::hardware::wifi::V1_0::WifiStatusCode;
+using ::android::hardware::wifi::V1_3::IWifiChip;
+
+namespace {
+constexpr IWifiChip::LatencyMode kLatencyModeNormal =
+    IWifiChip::LatencyMode::NORMAL;
+
+constexpr IWifiChip::LatencyMode kLatencyModeLow = IWifiChip::LatencyMode::LOW;
+};  // namespace
+
+/**
+ * Fixture to use for all Wifi chip HIDL interface tests.
+ */
+class WifiChipHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        wifi_chip_ = IWifiChip::castFrom(getWifiChip());
+        ASSERT_NE(nullptr, wifi_chip_.get());
+    }
+
+    virtual void TearDown() override { stopWifi(); }
+
+   protected:
+    // Helper function to configure the Chip in one of the supported modes.
+    // Most of the non-mode-configuration-related methods require chip
+    // to be first configured.
+    ChipModeId configureChipForIfaceType(IfaceType type, bool expectSuccess) {
+        ChipModeId mode_id;
+        EXPECT_EQ(expectSuccess,
+                  configureChipToSupportIfaceType(wifi_chip_, type, &mode_id));
+        return mode_id;
+    }
+
+    uint32_t configureChipForStaIfaceAndGetCapabilities() {
+        ChipModeId mode_id;
+        EXPECT_TRUE(configureChipToSupportIfaceType(wifi_chip_, IfaceType::STA,
+                                                    &mode_id));
+        const auto& status_and_caps =
+            HIDL_INVOKE(wifi_chip_, getCapabilities_1_3);
+        EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_caps.first.code);
+        return status_and_caps.second;
+    }
+
+    sp<IWifiChip> wifi_chip_;
+};
+
+/*
+ * SetLatencyMode_normal
+ * This test case tests the setLatencyMode() API with
+ * Latency mode NORMAL
+ */
+TEST_F(WifiChipHidlTest, SetLatencyMode_normal) {
+    uint32_t caps = configureChipForStaIfaceAndGetCapabilities();
+    const auto& status =
+        HIDL_INVOKE(wifi_chip_, setLatencyMode, kLatencyModeNormal);
+    if (caps & (IWifiChip::ChipCapabilityMask::SET_LATENCY_MODE)) {
+        EXPECT_EQ(WifiStatusCode::SUCCESS, status.code);
+    } else {
+        EXPECT_EQ(WifiStatusCode::ERROR_NOT_SUPPORTED, status.code);
+    }
+}
+
+/*
+ * SetLatencyMode_low
+ * This test case tests the setLatencyMode() API with Latency mode LOW
+ */
+TEST_F(WifiChipHidlTest, SetLatencyMode_low) {
+    uint32_t caps = configureChipForStaIfaceAndGetCapabilities();
+    const auto& status =
+        HIDL_INVOKE(wifi_chip_, setLatencyMode, kLatencyModeLow);
+    if (caps & (IWifiChip::ChipCapabilityMask::SET_LATENCY_MODE)) {
+        EXPECT_EQ(WifiStatusCode::SUCCESS, status.code);
+    } else {
+        EXPECT_EQ(WifiStatusCode::ERROR_NOT_SUPPORTED, status.code);
+    }
+}
+
+/*
+ * GetCapabilities_1_3
+ */
+TEST_F(WifiChipHidlTest, GetCapabilities_1_3) {
+    configureChipForIfaceType(IfaceType::STA, true);
+    const auto& status_and_caps = HIDL_INVOKE(wifi_chip_, getCapabilities_1_3);
+    if (status_and_caps.first.code != WifiStatusCode::SUCCESS) {
+        EXPECT_EQ(WifiStatusCode::ERROR_NOT_SUPPORTED,
+                  status_and_caps.first.code);
+        return;
+    }
+    EXPECT_NE(0u, status_and_caps.second);
+}
diff --git a/wifi/1.3/vts/functional/wifi_sta_iface_hidl_test.cpp b/wifi/1.3/vts/functional/wifi_sta_iface_hidl_test.cpp
new file mode 100644
index 0000000..71e90ac
--- /dev/null
+++ b/wifi/1.3/vts/functional/wifi_sta_iface_hidl_test.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Staache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <numeric>
+#include <vector>
+
+#include <android-base/logging.h>
+
+#include <android/hardware/wifi/1.3/IWifiStaIface.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include "wifi_hidl_call_util.h"
+#include "wifi_hidl_test_utils.h"
+
+using ::android::sp;
+using ::android::hardware::wifi::V1_0::WifiStatusCode;
+using ::android::hardware::wifi::V1_3::IWifiStaIface;
+
+/**
+ * Fixture to use for all STA Iface HIDL interface tests.
+ */
+class WifiStaIfaceHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        wifi_sta_iface_ = IWifiStaIface::castFrom(getWifiStaIface());
+        ASSERT_NE(nullptr, wifi_sta_iface_.get());
+    }
+
+    virtual void TearDown() override { stopWifi(); }
+
+   protected:
+    bool isCapabilitySupported(IWifiStaIface::StaIfaceCapabilityMask cap_mask) {
+        const auto& status_and_caps =
+            HIDL_INVOKE(wifi_sta_iface_, getCapabilities);
+        EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_caps.first.code);
+        return (status_and_caps.second & cap_mask) != 0;
+    }
+
+    sp<IWifiStaIface> wifi_sta_iface_;
+};
+
+/*
+ * GetFactoryMacAddress:
+ * Ensures that calls to get factory MAC address will retrieve a non-zero MAC
+ * and return a success status code.
+ */
+TEST_F(WifiStaIfaceHidlTest, GetFactoryMacAddress) {
+    const auto& status_and_mac =
+        HIDL_INVOKE(wifi_sta_iface_, getFactoryMacAddress);
+    EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_mac.first.code);
+    const int num_elements = sizeof(status_and_mac.second) / sizeof(uint8_t);
+    EXPECT_EQ(6, num_elements);
+    for (int i = 0; i < num_elements; i++) {
+        EXPECT_NE(0, status_and_mac.second[i]);
+    }
+}
+
+/*
+ * GetLinkLayerStats_1_3
+ * Ensures that calls to get link layer stats V1_3 will retrieve a non-empty
+ * StaLinkLayerStats after link layer stats collection is enabled.
+ */
+TEST_F(WifiStaIfaceHidlTest, GetLinkLayerStats_1_3) {
+    if (!isCapabilitySupported(
+            IWifiStaIface::StaIfaceCapabilityMask::LINK_LAYER_STATS)) {
+        // No-op if link layer stats is not supported.
+        return;
+    }
+
+    // Enable link layer stats collection.
+    EXPECT_EQ(WifiStatusCode::SUCCESS,
+              HIDL_INVOKE(wifi_sta_iface_, enableLinkLayerStatsCollection, true)
+                  .code);
+    // Retrieve link layer stats.
+    const auto& status_and_stats =
+        HIDL_INVOKE(wifi_sta_iface_, getLinkLayerStats_1_3);
+    EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_stats.first.code);
+    EXPECT_GT(status_and_stats.second.timeStampInMs, 0u);
+    // Disable link layer stats collection.
+    EXPECT_EQ(
+        WifiStatusCode::SUCCESS,
+        HIDL_INVOKE(wifi_sta_iface_, disableLinkLayerStatsCollection).code);
+}
diff --git a/wifi/1.2/default/OWNERS b/wifi/hostapd/1.0/vts/OWNERS
similarity index 100%
copy from wifi/1.2/default/OWNERS
copy to wifi/hostapd/1.0/vts/OWNERS
diff --git a/wifi/hostapd/1.0/vts/functional/Android.bp b/wifi/hostapd/1.0/vts/functional/Android.bp
index 79c5183..93867d2 100644
--- a/wifi/hostapd/1.0/vts/functional/Android.bp
+++ b/wifi/hostapd/1.0/vts/functional/Android.bp
@@ -24,6 +24,7 @@
     static_libs: [
         "VtsHalWifiV1_0TargetTestUtil",
         "android.hardware.wifi.hostapd@1.0",
+        "android.hardware.wifi.hostapd@1.1",
         "android.hardware.wifi@1.0",
         "libcrypto",
         "libgmock",
@@ -43,6 +44,7 @@
         "VtsHalWifiV1_0TargetTestUtil",
         "VtsHalWifiHostapdV1_0TargetTestUtil",
         "android.hardware.wifi.hostapd@1.0",
+        "android.hardware.wifi.hostapd@1.1",
         "android.hardware.wifi@1.0",
         "libcrypto",
         "libgmock",
diff --git a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp
index 504f4c8..fa780f9 100644
--- a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp
+++ b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp
@@ -138,9 +138,11 @@
  * Access point creation should pass.
  */
 TEST_F(HostapdHidlTest, AddPskAccessPointWithAcs) {
-    auto status = HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithAcs(),
-                              getPskNwParams());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
+                                  getIfaceParamsWithAcs(), getPskNwParams());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -148,9 +150,11 @@
  * Access point creation should pass.
  */
 TEST_F(HostapdHidlTest, AddOpenAccessPointWithAcs) {
-    auto status = HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithAcs(),
-                              getOpenNwParams());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
+                                  getIfaceParamsWithAcs(), getOpenNwParams());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -158,9 +162,11 @@
  * Access point creation should pass.
  */
 TEST_F(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
-    auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
-                              getIfaceParamsWithoutAcs(), getPskNwParams());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
+                                  getIfaceParamsWithoutAcs(), getPskNwParams());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -168,9 +174,12 @@
  * Access point creation should pass.
  */
 TEST_F(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
-    auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
-                              getIfaceParamsWithoutAcs(), getOpenNwParams());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status =
+            HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithoutAcs(),
+                        getOpenNwParams());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -178,12 +187,14 @@
  * Access point creation & removal should pass.
  */
 TEST_F(HostapdHidlTest, RemoveAccessPointWithAcs) {
-    auto status = HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithAcs(),
-                              getPskNwParams());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
-    status =
-        HIDL_INVOKE(hostapd_, removeAccessPoint, getPrimaryWlanIfaceName());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
+                                  getIfaceParamsWithAcs(), getPskNwParams());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+        status =
+            HIDL_INVOKE(hostapd_, removeAccessPoint, getPrimaryWlanIfaceName());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -191,12 +202,14 @@
  * Access point creation & removal should pass.
  */
 TEST_F(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
-    auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
-                              getIfaceParamsWithoutAcs(), getPskNwParams());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
-    status =
-        HIDL_INVOKE(hostapd_, removeAccessPoint, getPrimaryWlanIfaceName());
-    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
+                                  getIfaceParamsWithoutAcs(), getPskNwParams());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+        status =
+            HIDL_INVOKE(hostapd_, removeAccessPoint, getPrimaryWlanIfaceName());
+        EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -204,10 +217,12 @@
  * Access point creation should fail.
  */
 TEST_F(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
-    auto status =
-        HIDL_INVOKE(hostapd_, addAccessPoint,
-                    getIfaceParamsWithInvalidChannel(), getPskNwParams());
-    EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status =
+            HIDL_INVOKE(hostapd_, addAccessPoint,
+                        getIfaceParamsWithInvalidChannel(), getPskNwParams());
+        EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /**
@@ -215,10 +230,12 @@
  * Access point creation should fail.
  */
 TEST_F(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
-    auto status =
-        HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithoutAcs(),
-                    getInvalidPskNwParams());
-    EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+    if (!is_1_1(hostapd_)) {
+        auto status =
+            HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithoutAcs(),
+                        getInvalidPskNwParams());
+        EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+    }
 }
 
 /*
diff --git a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp
index e5ba8ef..22dbb52 100644
--- a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp
+++ b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp
@@ -130,6 +130,12 @@
     ASSERT_TRUE(notification_listener->waitForHidlService(200, service_name));
 }
 
+bool is_1_1(const sp<IHostapd>& hostapd) {
+    sp<::android::hardware::wifi::hostapd::V1_1::IHostapd> hostapd_1_1 =
+        ::android::hardware::wifi::hostapd::V1_1::IHostapd::castFrom(hostapd);
+    return hostapd_1_1.get() != nullptr;
+}
+
 sp<IHostapd> getHostapd() {
     return ::testing::VtsHalHidlTargetTestBase::getService<IHostapd>(
         gEnv->getServiceName<IHostapd>());
diff --git a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.h b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.h
index 1b92477..8e2f1a3 100644
--- a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.h
+++ b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.h
@@ -18,6 +18,7 @@
 #define HOSTAPD_HIDL_TEST_UTILS_H
 
 #include <android/hardware/wifi/hostapd/1.0/IHostapd.h>
+#include <android/hardware/wifi/hostapd/1.1/IHostapd.h>
 
 #include <VtsHalHidlTargetTestEnvBase.h>
 
@@ -34,6 +35,8 @@
 // These helper functions should be modified to return vectors if we support
 // multiple instances.
 android::sp<android::hardware::wifi::hostapd::V1_0::IHostapd> getHostapd();
+bool is_1_1(const android::sp<android::hardware::wifi::hostapd::V1_0::IHostapd>&
+                hostapd);
 
 class WifiHostapdHidlEnvironment
     : public ::testing::VtsHalHidlTargetTestEnvBase {
diff --git a/wifi/hostapd/1.1/Android.bp b/wifi/hostapd/1.1/Android.bp
new file mode 100644
index 0000000..d4170b6
--- /dev/null
+++ b/wifi/hostapd/1.1/Android.bp
@@ -0,0 +1,20 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.wifi.hostapd@1.1",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IHostapd.hal",
+        "IHostapdCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.wifi.hostapd@1.0",
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+
diff --git a/wifi/hostapd/1.1/IHostapd.hal b/wifi/hostapd/1.1/IHostapd.hal
new file mode 100644
index 0000000..c144f6a
--- /dev/null
+++ b/wifi/hostapd/1.1/IHostapd.hal
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.hostapd@1.1;
+
+import @1.0::IHostapd;
+import @1.0::HostapdStatus;
+
+import IHostapdCallback;
+
+/**
+ * Top-level object for managing SoftAPs.
+ */
+interface IHostapd extends @1.0::IHostapd {
+    /**
+     * Parameters to specify the channel range for ACS.
+     */
+    struct AcsChannelRange {
+        /**
+         * Channel number (IEEE 802.11) at the start of the range.
+         */
+        uint32_t start;
+        /**
+         * Channel number (IEEE 802.11) at the end of the range.
+         */
+        uint32_t end;
+    };
+
+    /**
+     * Parameters to control the channel selection for the interface.
+     */
+    struct ChannelParams {
+        /**
+         * This option can be used to specify the channels selected by ACS.
+         * If this is an empty list, all channels allowed in selected HW mode
+         * are specified implicitly.
+         * Note: channels may be overridden by firmware.
+         * Note: this option is ignored if ACS is disabled.
+         */
+        vec<AcsChannelRange> acsChannelRanges;
+    };
+
+    /**
+     * Parameters to use for setting up the access point interface.
+     */
+    struct IfaceParams {
+        /**
+         * Baseline information as defined in HAL 1.0.
+         */
+        @1.0::IHostapd.IfaceParams V1_0;
+        /** Additional Channel params for the interface */
+        ChannelParams channelParams;
+    };
+
+    /**
+     * Adds a new access point for hostapd to control.
+     *
+     * This should trigger the setup of an access point with the specified
+     * interface and network params.
+     *
+     * @param ifaceParams AccessPoint Params for the access point.
+     * @param nwParams Network Params for the access point.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |HostapdStatusCode.SUCCESS|,
+     *         |HostapdStatusCode.FAILURE_ARGS_INVALID|,
+     *         |HostapdStatusCode.FAILURE_UNKNOWN|,
+     *         |HostapdStatusCode.FAILURE_IFACE_EXISTS|
+     */
+    addAccessPoint_1_1(IfaceParams ifaceParams, NetworkParams nwParams)
+        generates(HostapdStatus status);
+
+    /**
+     * Register for callbacks from the hostapd service.
+     *
+     * These callbacks are invoked for global events that are not specific
+     * to any interface or network. Registration of multiple callback
+     * objects is supported. These objects must be deleted when the corresponding
+     * client process is dead.
+     *
+     * @param callback An instance of the |IHostapdCallback| HIDL interface
+     *     object.
+     * @return status Status of the operation.
+     *     Possible status codes:
+     *     |HostapdStatusCode.SUCCESS|,
+     *     |HostapdStatusCode.FAILURE_UNKNOWN|
+     */
+    registerCallback(IHostapdCallback callback)
+        generates (HostapdStatus status);
+};
diff --git a/wifi/hostapd/1.1/IHostapdCallback.hal b/wifi/hostapd/1.1/IHostapdCallback.hal
new file mode 100644
index 0000000..1d314fe
--- /dev/null
+++ b/wifi/hostapd/1.1/IHostapdCallback.hal
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.hostapd@1.1;
+
+/**
+ * Top-level object for managing SoftAPs.
+ */
+interface IHostapdCallback {
+    /**
+     * Invoked when an asynchronous failure is encountered in one of the access
+     * points added via |IHostapd.addAccessPoint|.
+     *
+     * @param ifaceName Name of the interface.
+     */
+    oneway onFailure(string ifaceName);
+};
diff --git a/wifi/1.2/default/OWNERS b/wifi/hostapd/1.1/vts/OWNERS
similarity index 100%
copy from wifi/1.2/default/OWNERS
copy to wifi/hostapd/1.1/vts/OWNERS
diff --git a/wifi/hostapd/1.1/vts/functional/Android.bp b/wifi/hostapd/1.1/vts/functional/Android.bp
new file mode 100644
index 0000000..bbf5246
--- /dev/null
+++ b/wifi/hostapd/1.1/vts/functional/Android.bp
@@ -0,0 +1,58 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "VtsHalWifiHostapdV1_1TargetTestUtil",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["hostapd_hidl_test_utils_1_1.cpp"],
+    export_include_dirs: [
+        "."
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "VtsHalWifiHostapdV1_0TargetTestUtil",
+        "android.hardware.wifi.hostapd@1.0",
+        "android.hardware.wifi.hostapd@1.1",
+        "android.hardware.wifi@1.0",
+        "libcrypto",
+        "libgmock",
+        "libwifi-system",
+        "libwifi-system-iface",
+    ],
+}
+
+cc_test {
+    name: "VtsHalWifiHostapdV1_1TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalWifiHostapdV1_1TargetTest.cpp",
+        "hostapd_hidl_test.cpp",
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "VtsHalWifiHostapdV1_0TargetTestUtil",
+        "VtsHalWifiHostapdV1_1TargetTestUtil",
+        "android.hardware.wifi.hostapd@1.0",
+        "android.hardware.wifi.hostapd@1.1",
+        "android.hardware.wifi@1.0",
+        "libcrypto",
+        "libgmock",
+        "libwifi-system",
+        "libwifi-system-iface",
+    ],
+    test_suites: ["general-tests"],
+}
+
diff --git a/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp b/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp
new file mode 100644
index 0000000..6916db2
--- /dev/null
+++ b/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android/hardware/wifi/1.0/IWifi.h>
+
+#include "hostapd_hidl_test_utils.h"
+#include "hostapd_hidl_test_utils_1_1.h"
+
+class WifiHostapdHidlEnvironment_1_1 : public WifiHostapdHidlEnvironment {
+   public:
+    // get the test environment singleton
+    static WifiHostapdHidlEnvironment_1_1* Instance() {
+        static WifiHostapdHidlEnvironment_1_1* instance =
+            new WifiHostapdHidlEnvironment_1_1;
+        return instance;
+    }
+
+    virtual void registerTestServices() override {
+        registerTestService<::android::hardware::wifi::V1_0::IWifi>();
+        registerTestService<android::hardware::wifi::hostapd::V1_0::IHostapd>();
+        registerTestService<android::hardware::wifi::hostapd::V1_1::IHostapd>();
+    }
+
+   private:
+    WifiHostapdHidlEnvironment_1_1() {}
+};
+
+WifiHostapdHidlEnvironment* gEnv = WifiHostapdHidlEnvironment_1_1::Instance();
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    gEnv->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
new file mode 100644
index 0000000..439a624
--- /dev/null
+++ b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <cutils/properties.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include <android/hardware/wifi/hostapd/1.1/IHostapd.h>
+
+#include "hostapd_hidl_call_util.h"
+#include "hostapd_hidl_test_utils.h"
+#include "hostapd_hidl_test_utils_1_1.h"
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::wifi::hostapd::V1_0::HostapdStatus;
+using ::android::hardware::wifi::hostapd::V1_0::HostapdStatusCode;
+using ::android::hardware::wifi::hostapd::V1_1::IHostapd;
+using ::android::hardware::wifi::hostapd::V1_1::IHostapdCallback;
+
+namespace {
+constexpr unsigned char kNwSsid[] = {'t', 'e', 's', 't', '1',
+                                     '2', '3', '4', '5'};
+constexpr char kNwPassphrase[] = "test12345";
+constexpr int kIfaceChannel = 6;
+constexpr int kIfaceInvalidChannel = 567;
+}  // namespace
+
+class HostapdHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        startHostapdAndWaitForHidlService();
+        hostapd_ = getHostapd_1_1();
+        ASSERT_NE(hostapd_.get(), nullptr);
+    }
+
+    virtual void TearDown() override { stopHostapd(); }
+
+   protected:
+    std::string getPrimaryWlanIfaceName() {
+        std::array<char, PROPERTY_VALUE_MAX> buffer;
+        property_get("wifi.interface", buffer.data(), "wlan0");
+        return buffer.data();
+    }
+
+    IHostapd::IfaceParams getIfaceParamsWithAcs() {
+        ::android::hardware::wifi::hostapd::V1_0::IHostapd::IfaceParams
+            iface_params;
+        IHostapd::IfaceParams iface_params_1_1;
+
+        iface_params.ifaceName = getPrimaryWlanIfaceName();
+        iface_params.hwModeParams.enable80211N = true;
+        iface_params.hwModeParams.enable80211AC = false;
+        iface_params.channelParams.enableAcs = true;
+        iface_params.channelParams.acsShouldExcludeDfs = true;
+        iface_params.channelParams.channel = 0;
+        iface_params.channelParams.band = IHostapd::Band::BAND_ANY;
+        iface_params_1_1.V1_0 = iface_params;
+        return iface_params_1_1;
+    }
+
+    IHostapd::IfaceParams getIfaceParamsWithAcsAndChannelRange() {
+        IHostapd::IfaceParams iface_params_1_1 = getIfaceParamsWithAcs();
+        IHostapd::ChannelParams channelParams;
+        IHostapd::AcsChannelRange acsChannelRange;
+        acsChannelRange.start = 1;
+        acsChannelRange.end = 11;
+        std::vector<IHostapd::AcsChannelRange> vec_acsChannelRange;
+        vec_acsChannelRange.push_back(acsChannelRange);
+        channelParams.acsChannelRanges = vec_acsChannelRange;
+        iface_params_1_1.channelParams = channelParams;
+        return iface_params_1_1;
+    }
+
+    IHostapd::IfaceParams getIfaceParamsWithAcsAndInvalidChannelRange() {
+        IHostapd::IfaceParams iface_params_1_1 =
+            getIfaceParamsWithAcsAndChannelRange();
+        iface_params_1_1.channelParams.acsChannelRanges[0].start = 222;
+        iface_params_1_1.channelParams.acsChannelRanges[0].end = 999;
+        return iface_params_1_1;
+    }
+
+    IHostapd::IfaceParams getIfaceParamsWithoutAcs() {
+        ::android::hardware::wifi::hostapd::V1_0::IHostapd::IfaceParams
+            iface_params;
+        IHostapd::IfaceParams iface_params_1_1;
+
+        iface_params.ifaceName = getPrimaryWlanIfaceName();
+        iface_params.hwModeParams.enable80211N = true;
+        iface_params.hwModeParams.enable80211AC = false;
+        iface_params.channelParams.enableAcs = false;
+        iface_params.channelParams.acsShouldExcludeDfs = false;
+        iface_params.channelParams.channel = kIfaceChannel;
+        iface_params.channelParams.band = IHostapd::Band::BAND_2_4_GHZ;
+        iface_params_1_1.V1_0 = iface_params;
+        return iface_params_1_1;
+    }
+
+    IHostapd::IfaceParams getIfaceParamsWithInvalidChannel() {
+        IHostapd::IfaceParams iface_params_1_1 = getIfaceParamsWithoutAcs();
+        iface_params_1_1.V1_0.channelParams.channel = kIfaceInvalidChannel;
+        return iface_params_1_1;
+    }
+
+    IHostapd::NetworkParams getPskNwParams() {
+        IHostapd::NetworkParams nw_params;
+        nw_params.ssid =
+            std::vector<uint8_t>(kNwSsid, kNwSsid + sizeof(kNwSsid));
+        nw_params.isHidden = false;
+        nw_params.encryptionType = IHostapd::EncryptionType::WPA2;
+        nw_params.pskPassphrase = kNwPassphrase;
+        return nw_params;
+    }
+
+    IHostapd::NetworkParams getInvalidPskNwParams() {
+        IHostapd::NetworkParams nw_params;
+        nw_params.ssid =
+            std::vector<uint8_t>(kNwSsid, kNwSsid + sizeof(kNwSsid));
+        nw_params.isHidden = false;
+        nw_params.encryptionType = IHostapd::EncryptionType::WPA2;
+        return nw_params;
+    }
+
+    IHostapd::NetworkParams getOpenNwParams() {
+        IHostapd::NetworkParams nw_params;
+        nw_params.ssid =
+            std::vector<uint8_t>(kNwSsid, kNwSsid + sizeof(kNwSsid));
+        nw_params.isHidden = false;
+        nw_params.encryptionType = IHostapd::EncryptionType::NONE;
+        return nw_params;
+    }
+
+    // IHostapd object used for all tests in this fixture.
+    sp<IHostapd> hostapd_;
+};
+
+class IfaceCallback : public IHostapdCallback {
+    Return<void> onFailure(
+        const hidl_string& /* Name of the interface */) override {
+        return Void();
+    }
+};
+
+/*
+ * RegisterCallback
+ */
+TEST_F(HostapdHidlTest, registerCallback) {
+    hostapd_->registerCallback(
+        new IfaceCallback(), [](const HostapdStatus& status) {
+            EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+        });
+}
+
+/**
+ * Adds an access point with PSK network config & ACS enabled.
+ * Access point creation should pass.
+ */
+TEST_F(HostapdHidlTest, AddPskAccessPointWithAcs) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithAcs(), getPskNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with PSK network config, ACS enabled & channel Range.
+ * Access point creation should pass.
+ */
+TEST_F(HostapdHidlTest, AddPskAccessPointWithAcsAndChannelRange) {
+    auto status =
+        HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                    getIfaceParamsWithAcsAndChannelRange(), getPskNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with invalid channel range.
+ * Access point creation should fail.
+ */
+TEST_F(HostapdHidlTest, AddPskAccessPointWithAcsAndInvalidChannelRange) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithAcsAndInvalidChannelRange(),
+                              getPskNwParams());
+    EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with Open network config & ACS enabled.
+ * Access point creation should pass.
+ */
+TEST_F(HostapdHidlTest, AddOpenAccessPointWithAcs) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithAcs(), getOpenNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with PSK network config & ACS disabled.
+ * Access point creation should pass.
+ */
+TEST_F(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithoutAcs(), getPskNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with Open network config & ACS disabled.
+ * Access point creation should pass.
+ */
+TEST_F(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithoutAcs(), getOpenNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds & then removes an access point with PSK network config & ACS enabled.
+ * Access point creation & removal should pass.
+ */
+TEST_F(HostapdHidlTest, RemoveAccessPointWithAcs) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithAcs(), getPskNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    status =
+        HIDL_INVOKE(hostapd_, removeAccessPoint, getPrimaryWlanIfaceName());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds & then removes an access point with PSK network config & ACS disabled.
+ * Access point creation & removal should pass.
+ */
+TEST_F(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
+    auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                              getIfaceParamsWithoutAcs(), getPskNwParams());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+    status =
+        HIDL_INVOKE(hostapd_, removeAccessPoint, getPrimaryWlanIfaceName());
+    EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with invalid channel.
+ * Access point creation should fail.
+ */
+TEST_F(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
+    auto status =
+        HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
+                    getIfaceParamsWithInvalidChannel(), getPskNwParams());
+    EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+}
+
+/**
+ * Adds an access point with invalid PSK network config.
+ * Access point creation should fail.
+ */
+TEST_F(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
+    auto status =
+        HIDL_INVOKE(hostapd_, addAccessPoint_1_1, getIfaceParamsWithoutAcs(),
+                    getInvalidPskNwParams());
+    EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
+}
diff --git a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.cpp b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.cpp
new file mode 100644
index 0000000..8bb72a1
--- /dev/null
+++ b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.cpp
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android-base/logging.h>
+
+#include "hostapd_hidl_test_utils.h"
+#include "hostapd_hidl_test_utils_1_1.h"
+
+using ::android::sp;
+using ::android::hardware::wifi::hostapd::V1_1::IHostapd;
+
+sp<IHostapd> getHostapd_1_1() { return IHostapd::castFrom(getHostapd()); }
diff --git a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.h b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.h
new file mode 100644
index 0000000..c43ddfa
--- /dev/null
+++ b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HOSTAPD_HIDL_TEST_UTILS_1_1_H
+#define HOSTAPD_HIDL_TEST_UTILS_1_1_H
+
+#include <android/hardware/wifi/hostapd/1.1/IHostapd.h>
+
+#include <VtsHalHidlTargetTestEnvBase.h>
+
+// Helper functions to obtain references to the various HIDL interface objects.
+// Note: We only have a single instance of each of these objects currently.
+// These helper functions should be modified to return vectors if we support
+// multiple instances.
+android::sp<android::hardware::wifi::hostapd::V1_1::IHostapd> getHostapd_1_1();
+
+#endif /* HOSTAPD_HIDL_TEST_UTILS_1_1_H */
diff --git a/wifi/supplicant/1.0/vts/functional/Android.bp b/wifi/supplicant/1.0/vts/functional/Android.bp
index de53fa2..bdccac1 100644
--- a/wifi/supplicant/1.0/vts/functional/Android.bp
+++ b/wifi/supplicant/1.0/vts/functional/Android.bp
@@ -39,7 +39,6 @@
     srcs: [
         "VtsHalWifiSupplicantV1_0TargetTest.cpp",
         "supplicant_hidl_test.cpp",
-        "supplicant_p2p_iface_hidl_test.cpp",
         "supplicant_sta_iface_hidl_test.cpp",
         "supplicant_sta_network_hidl_test.cpp",
     ],
@@ -56,3 +55,23 @@
     ],
     test_suites: ["general-tests"],
 }
+
+cc_test {
+    name: "VtsHalWifiSupplicantP2pV1_0TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalWifiSupplicantV1_0TargetTest.cpp",
+        "supplicant_p2p_iface_hidl_test.cpp",
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_0TargetTestUtil",
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hardware.wifi.supplicant@1.1",
+        "android.hardware.wifi@1.0",
+        "libcrypto",
+        "libgmock",
+        "libwifi-system",
+        "libwifi-system-iface",
+    ],
+}
diff --git a/wifi/supplicant/1.0/vts/functional/VtsHalWifiSupplicantV1_0TargetTest.cpp b/wifi/supplicant/1.0/vts/functional/VtsHalWifiSupplicantV1_0TargetTest.cpp
index adf2a85..6ca0546 100644
--- a/wifi/supplicant/1.0/vts/functional/VtsHalWifiSupplicantV1_0TargetTest.cpp
+++ b/wifi/supplicant/1.0/vts/functional/VtsHalWifiSupplicantV1_0TargetTest.cpp
@@ -44,7 +44,10 @@
     ::testing::AddGlobalTestEnvironment(gEnv);
     ::testing::InitGoogleTest(&argc, argv);
     gEnv->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        int status = RUN_ALL_TESTS();
+        LOG(INFO) << "Test result = " << status;
+    }
     return status;
 }
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp
index c6ac03c..436b88b 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp
@@ -30,6 +30,8 @@
 using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatusCode;
 using ::android::hardware::wifi::supplicant::V1_0::IfaceType;
 
+extern WifiSupplicantHidlEnvironment* gEnv;
+
 class SupplicantHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     virtual void SetUp() override {
@@ -72,10 +74,13 @@
               std::find_if(ifaces.begin(), ifaces.end(), [](const auto& iface) {
                   return iface.type == IfaceType::STA;
               }));
-    EXPECT_NE(ifaces.end(),
-              std::find_if(ifaces.begin(), ifaces.end(), [](const auto& iface) {
-                  return iface.type == IfaceType::P2P;
-              }));
+    if (gEnv->isP2pOn) {
+        EXPECT_NE(
+            ifaces.end(),
+            std::find_if(ifaces.begin(), ifaces.end(), [](const auto& iface) {
+                return iface.type == IfaceType::P2P;
+            }));
+    }
 }
 
 /*
@@ -178,8 +183,10 @@
         IfaceType::STA, [](const SupplicantStatus& status) {
             EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
         });
-    supplicant_->setConcurrencyPriority(
-        IfaceType::P2P, [](const SupplicantStatus& status) {
-            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
-        });
+    if (gEnv->isP2pOn) {
+        supplicant_->setConcurrencyPriority(
+            IfaceType::P2P, [](const SupplicantStatus& status) {
+                EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            });
+    }
 }
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp
index bdedfba..47c3056 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp
@@ -225,7 +225,9 @@
     // For 1.1 supplicant, we need to add interfaces at initialization.
     if (is_1_1(supplicant)) {
         addSupplicantStaIface_1_1(supplicant);
-        addSupplicantP2pIface_1_1(supplicant);
+        if (gEnv->isP2pOn) {
+            addSupplicantP2pIface_1_1(supplicant);
+        }
     }
     return supplicant;
 }
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.h b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.h
index d4a768f..21a1ae6 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.h
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.h
@@ -23,6 +23,8 @@
 #include <android/hardware/wifi/supplicant/1.0/ISupplicantStaNetwork.h>
 #include <android/hardware/wifi/supplicant/1.1/ISupplicant.h>
 
+#include <getopt.h>
+
 #include <VtsHalHidlTargetTestEnvBase.h>
 
 // Used to stop the android wifi framework before every test.
@@ -50,11 +52,48 @@
 
 class WifiSupplicantHidlEnvironment
     : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
+   protected:
     virtual void HidlSetUp() override { stopSupplicant(); }
     virtual void HidlTearDown() override {
         startSupplicantAndWaitForHidlService();
     }
+
+   public:
+    // Whether P2P feature is supported on the device.
+    bool isP2pOn = true;
+
+    void usage(char* me, char* arg) {
+        fprintf(stderr,
+                "unrecognized option: %s\n\n"
+                "usage: %s <gtest options> <test options>\n\n"
+                "test options are:\n\n"
+                "-P, --p2p_on: Whether P2P feature is supported\n",
+                arg, me);
+    }
+
+    int initFromOptions(int argc, char** argv) {
+        static struct option options[] = {{"p2p_off", no_argument, 0, 'P'},
+                                          {0, 0, 0, 0}};
+
+        int c;
+        while ((c = getopt_long(argc, argv, "P", options, NULL)) >= 0) {
+            switch (c) {
+                case 'P':
+                    isP2pOn = false;
+                    break;
+                default:
+                    usage(argv[0], argv[optind]);
+                    return 2;
+            }
+        }
+
+        if (optind < argc) {
+            usage(argv[0], argv[optind]);
+            return 2;
+        }
+
+        return 0;
+    }
 };
 
 #endif /* SUPPLICANT_HIDL_TEST_UTILS_H */
diff --git a/wifi/supplicant/1.1/vts/functional/VtsHalWifiSupplicantV1_1TargetTest.cpp b/wifi/supplicant/1.1/vts/functional/VtsHalWifiSupplicantV1_1TargetTest.cpp
index 3d24fc3..9063a3b 100644
--- a/wifi/supplicant/1.1/vts/functional/VtsHalWifiSupplicantV1_1TargetTest.cpp
+++ b/wifi/supplicant/1.1/vts/functional/VtsHalWifiSupplicantV1_1TargetTest.cpp
@@ -30,8 +30,11 @@
         return instance;
     }
     virtual void registerTestServices() override {
+        registerTestService<::android::hardware::wifi::V1_0::IWifi>();
         registerTestService<::android::hardware::wifi::V1_1::IWifi>();
         registerTestService<
+            ::android::hardware::wifi::supplicant::V1_0::ISupplicant>();
+        registerTestService<
             ::android::hardware::wifi::supplicant::V1_1::ISupplicant>();
     }
 
@@ -46,7 +49,10 @@
     ::testing::AddGlobalTestEnvironment(gEnv);
     ::testing::InitGoogleTest(&argc, argv);
     gEnv->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        int status = RUN_ALL_TESTS();
+        LOG(INFO) << "Test result = " << status;
+    }
     return status;
 }
diff --git a/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp b/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp
index 7e773d6..28f980c 100644
--- a/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp
+++ b/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp
@@ -33,6 +33,8 @@
 using ::android::hardware::wifi::supplicant::V1_1::ISupplicant;
 using ::android::sp;
 
+extern WifiSupplicantHidlEnvironment* gEnv;
+
 class SupplicantHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     virtual void SetUp() override {
@@ -81,6 +83,7 @@
  * AddP2pInterface
  */
 TEST_F(SupplicantHidlTest, AddP2pInterface) {
+    if (!gEnv->isP2pOn) return;
     ISupplicant::IfaceInfo iface_info;
     iface_info.name = getP2pIfaceName();
     iface_info.type = IfaceType::P2P;
@@ -120,6 +123,7 @@
  * RemoveP2pInterface
  */
 TEST_F(SupplicantHidlTest, RemoveP2pInterface) {
+    if (!gEnv->isP2pOn) return;
     ISupplicant::IfaceInfo iface_info;
     iface_info.name = getP2pIfaceName();
     iface_info.type = IfaceType::P2P;
diff --git a/wifi/supplicant/1.2/Android.bp b/wifi/supplicant/1.2/Android.bp
new file mode 100644
index 0000000..a0fc2b1
--- /dev/null
+++ b/wifi/supplicant/1.2/Android.bp
@@ -0,0 +1,30 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.wifi.supplicant@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ISupplicant.hal",
+        "ISupplicantP2pIface.hal",
+        "ISupplicantStaIface.hal",
+        "ISupplicantStaIfaceCallback.hal",
+        "ISupplicantStaNetwork.hal",
+    ],
+    interfaces: [
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hardware.wifi.supplicant@1.1",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "DppAkm",
+        "DppFailureCode",
+        "DppNetRole",
+        "DppProgressCode",
+    ],
+    gen_java: true,
+}
+
diff --git a/wifi/supplicant/1.2/ISupplicant.hal b/wifi/supplicant/1.2/ISupplicant.hal
new file mode 100644
index 0000000..b0ec65d
--- /dev/null
+++ b/wifi/supplicant/1.2/ISupplicant.hal
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+import @1.1::ISupplicant;
+
+/**
+ * Interface exposed by the supplicant HIDL service registered
+ * with the hardware service manager.
+ * This is the root level object for any the supplicant interactions.
+ * To use 1.2 features you must cast specific interfaces returned from the
+ * 1.1 HAL. For example V1_1::ISupplicant::addIface() adds V1_1::ISupplicantIface,
+ * which can be cast to V1_2::ISupplicantStaIface.
+ */
+interface ISupplicant extends @1.1::ISupplicant {
+};
diff --git a/wifi/supplicant/1.2/ISupplicantP2pIface.hal b/wifi/supplicant/1.2/ISupplicantP2pIface.hal
new file mode 100644
index 0000000..d58f46b
--- /dev/null
+++ b/wifi/supplicant/1.2/ISupplicantP2pIface.hal
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+import @1.0::ISupplicantP2pIface;
+import @1.0::MacAddress;
+import @1.0::Ssid;
+import @1.0::SupplicantStatus;
+
+/**
+ * Interface exposed by the supplicant for each P2P mode network
+ * interface (e.g p2p0) it controls.
+ * To use 1.2 features you must cast specific interfaces returned from the
+ * 1.2 HAL. For example V1_2::ISupplicant::addIface() adds V1_2::ISupplicantIface,
+ * which can be cast to V1_2::ISupplicantP2pIface.
+ */
+interface ISupplicantP2pIface extends @1.0::ISupplicantP2pIface {
+    /**
+     * Set up a P2P group owner or join a group as a group client
+     * with the specified configuration.
+     *
+     * If joinExistingGroup is false, this device sets up a P2P group owner manually (i.e.,
+     * without group owner negotiation with a specific peer) with the specified SSID,
+     * passphrase, persistent mode, and frequency/band.
+     *
+     * If joinExistingGroup is true, this device acts as a group client and joins the group
+     * whose network name and group owner's MAC address matches the specified SSID
+     * and peer address without WPS process. If peerAddress is 00:00:00:00:00:00, the first found
+     * group whose network name matches the specified SSID is joined.
+     *
+     * @param ssid The SSID of this group.
+     * @param pskPassphrase The passphrase of this group.
+     * @param persistent Used to request a persistent group to be formed,
+     *        only applied for the group owner.
+     * @param freq The required frequency or band for this group.
+     *        only applied for the group owner.
+     *        The following values are supported:
+     *        0: automatic channel selection,
+     *        2: for 2.4GHz channels
+     *        5: for 5GHz channels
+     *        specific frequency, i.e., 2412, 5500, etc.
+     *        If an invalid band or unsupported frequency are specified, it fails.
+     * @param peerAddress the group owner's MAC address, only applied for the group client.
+     *        If the MAC is "00:00:00:00:00:00", the device must try to find a peer
+     *        whose network name matches the specified SSID.
+     * @param joinExistingGroup if true, join a group as a group client; otherwise,
+     *        create a group as a group owner.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
+     */
+    addGroup_1_2(Ssid ssid, string pskPassphrase, bool persistent,
+                 uint32_t freq, MacAddress peerAddress, bool joinExistingGroup)
+        generates (SupplicantStatus status);
+
+    /**
+     * Set MAC randomization enabled/disabled.
+     *
+     * @param enable true to enable, false to disable.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
+     */
+    setMacRandomization(bool enable) generates (SupplicantStatus status);
+};
diff --git a/wifi/supplicant/1.2/ISupplicantStaIface.hal b/wifi/supplicant/1.2/ISupplicantStaIface.hal
new file mode 100644
index 0000000..9152a64
--- /dev/null
+++ b/wifi/supplicant/1.2/ISupplicantStaIface.hal
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+import @1.0::SupplicantStatus;
+import @1.1::ISupplicantStaIface;
+import @1.2::ISupplicantStaIfaceCallback;
+import @1.2::ISupplicantStaNetwork;
+
+/**
+ * Interface exposed by the supplicant for each station mode network
+ * interface (e.g wlan0) it controls.
+ */
+interface ISupplicantStaIface extends @1.1::ISupplicantStaIface {
+    /**
+     * Register for callbacks from this interface.
+     *
+     * These callbacks are invoked for events that are specific to this interface.
+     * Registration of multiple callback objects is supported. These objects must
+     * be automatically deleted when the corresponding client process is dead or
+     * if this interface is removed.
+     *
+     * @param callback An instance of the |ISupplicantStaIfaceCallback| HIDL
+     *        interface object.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
+     */
+    registerCallback_1_2(ISupplicantStaIfaceCallback callback)
+        generates (SupplicantStatus status);
+
+    /**
+     * Get Key management capabilities of the device
+     *
+     * @return status Status of the operation, and a bitmap of key management mask.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    getKeyMgmtCapabilities()
+        generates (SupplicantStatus status, bitfield<KeyMgmtMask> keyMgmtMask);
+
+    /**
+     * Add a DPP peer URI. URI is acquired externally, e.g. by scanning a QR code
+     *
+     * @param uri Peer's DPP URI.
+     * @return status Status of the operation, and an ID for the URI.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    addDppPeerUri(string uri)
+        generates (SupplicantStatus status, uint32_t id);
+
+    /**
+     * Remove a DPP peer URI.
+     *
+     * @param id The ID of the URI, as returned by |addDppPeerUri|.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    removeDppUri(uint32_t id)
+        generates (SupplicantStatus status);
+
+    /**
+     * Start DPP in Configurator-Initiator mode.
+     *
+     * @param peerBootstrapId Peer device's URI ID.
+     * @param ownBootstrapId Local device's URI ID (0 for none, optional).
+     * @param ssid Network SSID to send to peer (SAE/PSK mode).
+     * @param password Network password to send to peer (SAE/PSK mode).
+     * @param psk Network PSK to send to peer (PSK mode only). Either password or psk should be set.
+     * @param netRole Role to configure the peer, |DppNetRole.DPP_NET_ROLE_STA| or
+     *        |DppNetRole.DPP_NET_ROLE_AP|.
+     * @param securityAkm Security AKM to use (See DppAkm).
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    startDppConfiguratorInitiator(uint32_t peerBootstrapId,
+        uint32_t ownBootstrapId, string ssid, string password,
+        string psk, DppNetRole netRole, DppAkm securityAkm)
+        generates (SupplicantStatus status);
+
+    /**
+     * Start DPP in Enrollee-Initiator mode.
+     *
+     * @param peerBootstrapId Peer device's URI ID.
+     * @param ownBootstrapId Local device's URI ID (0 for none, optional).
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    startDppEnrolleeInitiator(uint32_t peerBootstrapId,
+        uint32_t ownBootstrapId)
+        generates (SupplicantStatus status);
+
+    /**
+     * Stop DPP Initiator operation.
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+     stopDppInitiator()
+        generates (SupplicantStatus status);
+};
diff --git a/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.hal b/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.hal
new file mode 100644
index 0000000..3eac398
--- /dev/null
+++ b/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.hal
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+import @1.1::ISupplicantStaIfaceCallback;
+import @1.0::Ssid;
+
+/**
+ * Callback Interface exposed by the supplicant service
+ * for each station mode interface (ISupplicantStaIface).
+ *
+ * Clients need to host an instance of this HIDL interface object and
+ * pass a reference of the object to the supplicant via the
+ * corresponding |ISupplicantStaIface.registerCallback_1_2| method.
+ */
+interface ISupplicantStaIfaceCallback extends @1.1::ISupplicantStaIfaceCallback {
+    /**
+     * Indicates DPP configuration received success event (Enrolee mode).
+     */
+    oneway onDppSuccessConfigReceived(Ssid ssid, string password, uint8_t[32] psk,
+        DppAkm securityAkm);
+
+    /**
+     * Indicates DPP configuration sent success event (Configurator mode).
+     */
+    oneway onDppSuccessConfigSent();
+
+    /**
+     * Indicates a DPP progress event.
+     */
+    oneway onDppProgress(DppProgressCode code);
+
+    /**
+     * Indicates a DPP failure event.
+     */
+    oneway onDppFailure(DppFailureCode code);
+};
diff --git a/wifi/supplicant/1.2/ISupplicantStaNetwork.hal b/wifi/supplicant/1.2/ISupplicantStaNetwork.hal
new file mode 100644
index 0000000..7c3da6f
--- /dev/null
+++ b/wifi/supplicant/1.2/ISupplicantStaNetwork.hal
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+import @1.0::ISupplicantStaNetworkCallback;
+import @1.0::ISupplicantStaNetwork;
+import @1.0::SupplicantStatus;
+import @1.1::ISupplicantStaNetwork;
+
+/**
+ * Interface exposed by the supplicant for each station mode network
+ * configuration it controls.
+ */
+interface ISupplicantStaNetwork extends @1.1::ISupplicantStaNetwork {
+    /** Possble mask of values for KeyMgmt param. */
+    enum KeyMgmtMask : @1.0::ISupplicantStaNetwork.KeyMgmtMask {
+        /** WPA using EAP authentication with stronger SHA256-based algorithms */
+        WPA_EAP_SHA256 = 1 << 7,
+
+        /** WPA pre-shared key with stronger SHA256-based algorithms */
+        WPA_PSK_SHA256 = 1 << 8,
+
+        /** WPA3-Personal SAE Key management */
+        SAE = 1 << 10,
+
+        /** WPA3-Enterprise Suite-B Key management */
+        SUITE_B_192 = 1 << 17,
+
+        /** Enhacned Open (OWE) Key management */
+        OWE = 1 << 22,
+
+        /** Easy Connect (DPP) Key management */
+        DPP = 1 << 23,
+    };
+
+    /** Possble mask of values for PairwiseCipher param. */
+    enum PairwiseCipherMask : @1.0::ISupplicantStaNetwork.PairwiseCipherMask {
+        /** GCMP-256 Pairwise Cipher */
+        GCMP_256 = 1 << 8,
+    };
+
+    /** Possble mask of values for GroupCipher param. */
+    enum GroupCipherMask : @1.0::ISupplicantStaNetwork.GroupCipherMask {
+        /** GCMP-256 Group Cipher */
+        GCMP_256 = 1 << 8,
+    };
+
+    /** Possble mask of values for GroupMgmtCipher param. */
+    enum GroupMgmtCipherMask : uint32_t {
+        /** BIP_GMAC-128 Group Management Cipher */
+        BIP_GMAC_128 = 1 << 11,
+
+        /** BIP_GMAC-256 Group Management Cipher */
+        BIP_GMAC_256 = 1 << 12,
+
+        /** BIP_CMAC-256 Group Management Cipher */
+        BIP_CMAC_256 = 1 << 13,
+    };
+
+    /**
+     * Set key management mask for the network.
+     *
+     * @param keyMgmtMask value to set.
+     *        Combination of |KeyMgmtMask| values.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    setKeyMgmt_1_2(bitfield<KeyMgmtMask> keyMgmtMask) generates (SupplicantStatus status);
+
+    /**
+     * Get the key mgmt mask set for the network.
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     * @return keyMgmtMask Combination of |KeyMgmtMask| values.
+     */
+    getKeyMgmt_1_2()
+        generates (SupplicantStatus status, bitfield<KeyMgmtMask> keyMgmtMask);
+
+    /**
+     * Set pairwise cipher mask for the network.
+     *
+     * @param pairwiseCipherMask value to set.
+     *        Combination of |PairwiseCipherMask| values.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    setPairwiseCipher_1_2(bitfield<PairwiseCipherMask> pairwiseCipherMask)
+        generates (SupplicantStatus status);
+
+    /**
+     * Get the pairwise cipher mask set for the network.
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     * @return pairwiseCipherMask Combination of |PairwiseCipherMask| values.
+     */
+    getPairwiseCipher_1_2()
+        generates (SupplicantStatus status,
+            bitfield<PairwiseCipherMask> pairwiseCipherMask);
+
+    /**
+     * Set group cipher mask for the network.
+     *
+     * @param groupCipherMask value to set.
+     *        Combination of |GroupCipherMask| values.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    setGroupCipher_1_2(bitfield<GroupCipherMask> groupCipherMask)
+        generates (SupplicantStatus status);
+
+    /**
+     * Get the group cipher mask set for the network.
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     * @return groupCipherMask Combination of |GroupCipherMask| values.
+     */
+    getGroupCipher_1_2()
+        generates (SupplicantStatus status,
+            bitfield<GroupCipherMask> groupCipherMask);
+
+    /**
+     * Set group management cipher mask for the network.
+     *
+     * @param groupMgmtCipherMask value to set.
+     *        Combination of |GroupMgmtCipherMask| values.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    setGroupMgmtCipher(bitfield<GroupMgmtCipherMask> groupMgmtCipherMask)
+        generates (SupplicantStatus status);
+
+    /**
+     * Get the group management cipher mask set for the network.
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     * @return groupMgmtCipherMask Combination of |GroupMgmtCipherMask| values.
+     */
+    getGroupMgmtCipher()
+        generates (SupplicantStatus status,
+            bitfield<GroupMgmtCipherMask> groupMgmtCipherMask);
+
+    /**
+     * Enable TLS Suite-B in EAP Phase1
+     *
+     * @param enable Set to true to enable TLS Suite-B in EAP phase1
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    enableTlsSuiteBEapPhase1Param(bool enable)
+        generates (SupplicantStatus status);
+
+    /**
+     * Set EAP OpenSSL Suite-B-192 ciphers for WPA3-Enterprise
+     *        Supported option:
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    enableSuiteBEapOpenSslCiphers()
+        generates (SupplicantStatus status);
+
+    /**
+     * Get SAE password for WPA3-Personal
+     *
+     * @return status Status of the operation, and a string.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    getSaePassword()
+        generates (SupplicantStatus status, string saePassword);
+
+    /**
+     * Get SAE password ID for WPA3-Personal
+     *
+     * @return status Status of the operation, and a string.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    getSaePasswordId()
+        generates (SupplicantStatus status, string saePasswordId);
+
+    /**
+    * Set SAE password for WPA3-Personal
+    *
+    * @param saePassword string with the above option
+    *
+    * @return status Status of the operation.
+    *         Possible status codes:
+    *         |SupplicantStatusCode.SUCCESS|,
+    *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+    *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+    *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+    */
+    setSaePassword(string saePassword)
+        generates (SupplicantStatus status);
+
+    /**
+     * Set SAE password ID for WPA3-Personal
+     *
+     * @param sae_password_id string with the above option
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    setSaePasswordId(string saePasswordId)
+        generates (SupplicantStatus status);
+};
diff --git a/wifi/supplicant/1.2/types.hal b/wifi/supplicant/1.2/types.hal
new file mode 100644
index 0000000..303af19
--- /dev/null
+++ b/wifi/supplicant/1.2/types.hal
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+/**
+ * DppAkm: The various AKMs that can be provisioned using DPP.
+ */
+enum DppAkm : uint32_t {
+    PSK,
+    PSK_SAE,
+    SAE,
+    DPP,
+};
+
+/**
+ * DppNetRole: The network role that the configurator offers the enrollee.
+ */
+enum DppNetRole: uint32_t {
+    STA,
+    AP,
+};
+
+/**
+ * DppProgressCode: Progress codes for DPP (Easy Connect)
+ */
+enum DppProgressCode : uint32_t {
+    AUTHENTICATION_SUCCESS,
+    RESPONSE_PENDING,
+};
+
+/**
+ * DppFailureCode: Error codes for DPP (Easy Connect)
+ */
+enum DppFailureCode : uint32_t {
+    INVALID_URI,
+    AUTHENTICATION,
+    NOT_COMPATIBLE,
+    CONFIGURATION,
+    BUSY,
+    TIMEOUT,
+    FAILURE,
+    NOT_SUPPORTED,
+};
diff --git a/wifi/1.2/default/OWNERS b/wifi/supplicant/1.2/vts/OWNERS
similarity index 100%
copy from wifi/1.2/default/OWNERS
copy to wifi/supplicant/1.2/vts/OWNERS
diff --git a/wifi/supplicant/1.2/vts/functional/Android.bp b/wifi/supplicant/1.2/vts/functional/Android.bp
new file mode 100644
index 0000000..1b970e1
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/Android.bp
@@ -0,0 +1,88 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "VtsHalWifiSupplicantV1_2TargetTestUtil",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["supplicant_hidl_test_utils_1_2.cpp"],
+    export_include_dirs: [
+        "."
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_1TargetTestUtil",
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hardware.wifi.supplicant@1.1",
+        "android.hardware.wifi.supplicant@1.2",
+        "android.hardware.wifi@1.0",
+        "libcrypto",
+        "libgmock",
+        "libwifi-system",
+        "libwifi-system-iface",
+    ],
+}
+
+cc_test {
+    name: "VtsHalWifiSupplicantV1_2TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalWifiSupplicantV1_2TargetTest.cpp",
+        "supplicant_sta_iface_hidl_test.cpp",
+        "supplicant_sta_network_hidl_test.cpp",
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_1TargetTestUtil",
+        "VtsHalWifiSupplicantV1_2TargetTestUtil",
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hardware.wifi.supplicant@1.1",
+        "android.hardware.wifi.supplicant@1.2",
+        "android.hardware.wifi@1.0",
+        "android.hardware.wifi@1.1",
+        "libcrypto",
+        "libgmock",
+        "libwifi-system",
+        "libwifi-system-iface",
+    ],
+    test_suites: ["general-tests"],
+}
+
+cc_test {
+    name: "VtsHalWifiSupplicantP2pV1_2TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: [
+        "VtsHalWifiSupplicantV1_2TargetTest.cpp",
+        "supplicant_p2p_iface_hidl_test.cpp",
+    ],
+    static_libs: [
+        "VtsHalWifiV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_0TargetTestUtil",
+        "VtsHalWifiSupplicantV1_1TargetTestUtil",
+        "VtsHalWifiSupplicantV1_2TargetTestUtil",
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hardware.wifi.supplicant@1.1",
+        "android.hardware.wifi.supplicant@1.2",
+        "android.hardware.wifi@1.0",
+        "android.hardware.wifi@1.1",
+        "libcrypto",
+        "libgmock",
+        "libwifi-system",
+        "libwifi-system-iface",
+    ],
+}
+
diff --git a/wifi/supplicant/1.2/vts/functional/VtsHalWifiSupplicantV1_2TargetTest.cpp b/wifi/supplicant/1.2/vts/functional/VtsHalWifiSupplicantV1_2TargetTest.cpp
new file mode 100644
index 0000000..267fa67
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/VtsHalWifiSupplicantV1_2TargetTest.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android/hardware/wifi/1.1/IWifi.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicant.h>
+
+#include "supplicant_hidl_test_utils.h"
+#include "wifi_hidl_test_utils.h"
+
+class WifiSupplicantHidlEnvironment_1_2 : public WifiSupplicantHidlEnvironment {
+   public:
+    // get the test environment singleton
+    static WifiSupplicantHidlEnvironment_1_2* Instance() {
+        static WifiSupplicantHidlEnvironment_1_2* instance =
+            new WifiSupplicantHidlEnvironment_1_2;
+        return instance;
+    }
+    virtual void registerTestServices() override {
+        registerTestService<::android::hardware::wifi::V1_0::IWifi>();
+        registerTestService<::android::hardware::wifi::V1_1::IWifi>();
+        registerTestService<
+            ::android::hardware::wifi::supplicant::V1_0::ISupplicant>();
+        registerTestService<
+            ::android::hardware::wifi::supplicant::V1_1::ISupplicant>();
+        registerTestService<
+            ::android::hardware::wifi::supplicant::V1_2::ISupplicant>();
+    }
+
+   private:
+    WifiSupplicantHidlEnvironment_1_2() {}
+};
+
+WifiSupplicantHidlEnvironment* gEnv =
+    WifiSupplicantHidlEnvironment_1_2::Instance();
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    gEnv->init(&argc, argv);
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        int status = RUN_ALL_TESTS();
+        LOG(INFO) << "Test result = " << status;
+    }
+    return status;
+}
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.cpp
new file mode 100644
index 0000000..f270bff
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android-base/logging.h>
+
+#include "supplicant_hidl_test_utils.h"
+#include "supplicant_hidl_test_utils_1_2.h"
+
+using ::android::sp;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicant;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantP2pIface;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantStaIface;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantStaNetwork;
+
+sp<ISupplicant> getSupplicant_1_2() {
+    return ISupplicant::castFrom(getSupplicant());
+}
+
+sp<ISupplicantStaIface> getSupplicantStaIface_1_2() {
+    return ISupplicantStaIface::castFrom(getSupplicantStaIface());
+}
+
+sp<ISupplicantStaNetwork> createSupplicantStaNetwork_1_2() {
+    return ISupplicantStaNetwork::castFrom(createSupplicantStaNetwork());
+}
+
+sp<ISupplicantP2pIface> getSupplicantP2pIface_1_2() {
+    return ISupplicantP2pIface::castFrom(getSupplicantP2pIface());
+}
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h b/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h
new file mode 100644
index 0000000..8a7ccc5
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SUPPLICANT_HIDL_TEST_UTILS_1_2_H
+#define SUPPLICANT_HIDL_TEST_UTILS_1_2_H
+
+#include <android/hardware/wifi/supplicant/1.2/ISupplicant.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantP2pIface.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaIface.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaNetwork.h>
+
+android::sp<android::hardware::wifi::supplicant::V1_2::ISupplicant>
+getSupplicant_1_2();
+
+android::sp<android::hardware::wifi::supplicant::V1_2::ISupplicantStaIface>
+getSupplicantStaIface_1_2();
+
+android::sp<android::hardware::wifi::supplicant::V1_2::ISupplicantStaNetwork>
+createSupplicantStaNetwork_1_2();
+
+android::sp<android::hardware::wifi::supplicant::V1_2::ISupplicantP2pIface>
+getSupplicantP2pIface_1_2();
+
+#endif /* SUPPLICANT_HIDL_TEST_UTILS_1_2_H */
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp
new file mode 100644
index 0000000..9249045
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantP2pIface.h>
+
+#include "supplicant_hidl_test_utils.h"
+#include "supplicant_hidl_test_utils_1_2.h"
+
+using ::android::sp;
+using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatus;
+using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatusCode;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantP2pIface;
+
+namespace {
+constexpr uint8_t kTestSsid[] = {'D', 'I', 'R', 'E', 'C', 'T', '-', 'x',
+                                 'y', '-', 'H', 'E', 'L', 'L', 'O'};
+constexpr char kTestPassphrase[] = "P2pWorld1234";
+constexpr uint8_t kTestZeroMacAddr[] = {[0 ... 5] = 0x0};
+}  // namespace
+
+class SupplicantP2pIfaceHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        startSupplicantAndWaitForHidlService();
+        EXPECT_TRUE(turnOnExcessiveLogging());
+        p2p_iface_ = getSupplicantP2pIface_1_2();
+        ASSERT_NE(p2p_iface_.get(), nullptr);
+    }
+
+    virtual void TearDown() override { stopSupplicant(); }
+
+   protected:
+    // ISupplicantP2pIface object used for all tests in this fixture.
+    sp<ISupplicantP2pIface> p2p_iface_;
+};
+
+/*
+ * Verify that AddGroup_1_2 could create a group successfully.
+ */
+TEST_F(SupplicantP2pIfaceHidlTest, AddGroup_1_2_Success) {
+    std::vector<uint8_t> ssid(kTestSsid, kTestSsid + sizeof(kTestSsid));
+    std::string passphrase = kTestPassphrase;
+    int freq = 5;
+    std::array<uint8_t, 6> zero_mac_addr;
+    memcpy(zero_mac_addr.data(), kTestZeroMacAddr, zero_mac_addr.size());
+    bool persistent = false;
+    int is_join = false;
+
+    p2p_iface_->addGroup_1_2(ssid, passphrase, persistent, freq, zero_mac_addr,
+                             is_join, [](const SupplicantStatus& status) {
+                                 EXPECT_EQ(SupplicantStatusCode::SUCCESS,
+                                           status.code);
+                             });
+}
+
+/*
+ * Verify that AddGroup_1_2 fails due to invalid SSID.
+ */
+TEST_F(SupplicantP2pIfaceHidlTest, AddGroup_1_2_FailureInvalidSsid) {
+    std::vector<uint8_t> ssid;
+    std::string passphrase = kTestPassphrase;
+    int freq = 5;
+    std::array<uint8_t, 6> zero_mac_addr;
+    memcpy(zero_mac_addr.data(), kTestZeroMacAddr, zero_mac_addr.size());
+    bool persistent = false;
+    int is_join = false;
+
+    p2p_iface_->addGroup_1_2(
+        ssid, passphrase, persistent, freq, zero_mac_addr, is_join,
+        [](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::FAILURE_ARGS_INVALID, status.code);
+        });
+}
+
+/*
+ * Verify that AddGroup_1_2 fails due to invalid passphrase.
+ */
+TEST_F(SupplicantP2pIfaceHidlTest, AddGroup_1_2_FailureInvalidPassphrase) {
+    std::vector<uint8_t> ssid(kTestSsid, kTestSsid + sizeof(kTestSsid));
+    std::string passphrase = "1234";
+    int freq = 5;
+    std::array<uint8_t, 6> zero_mac_addr;
+    memcpy(zero_mac_addr.data(), kTestZeroMacAddr, zero_mac_addr.size());
+    bool persistent = false;
+    int is_join = false;
+
+    p2p_iface_->addGroup_1_2(
+        ssid, passphrase, persistent, freq, zero_mac_addr, is_join,
+        [](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::FAILURE_ARGS_INVALID, status.code);
+        });
+}
+
+/*
+ * Verify that AddGroup_1_2 fails due to invalid frequency.
+ */
+TEST_F(SupplicantP2pIfaceHidlTest, AddGroup_1_2_FailureInvalidFrequency) {
+    std::vector<uint8_t> ssid(kTestSsid, kTestSsid + sizeof(kTestSsid));
+    std::string passphrase = kTestPassphrase;
+    int freq = 9999;
+    std::array<uint8_t, 6> zero_mac_addr;
+    memcpy(zero_mac_addr.data(), kTestZeroMacAddr, zero_mac_addr.size());
+    bool persistent = false;
+    int is_join = false;
+
+    p2p_iface_->addGroup_1_2(
+        ssid, passphrase, persistent, freq, zero_mac_addr, is_join,
+        [](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::FAILURE_UNKNOWN, status.code);
+        });
+}
+
+/*
+ * Verify that setMacRandomization successes.
+ */
+TEST_F(SupplicantP2pIfaceHidlTest, EnableMacRandomization) {
+    p2p_iface_->setMacRandomization(true, [](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+
+    // enable twice
+    p2p_iface_->setMacRandomization(true, [](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+
+    p2p_iface_->setMacRandomization(false, [](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+
+    // disable twice
+    p2p_iface_->setMacRandomization(false, [](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+}
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
new file mode 100644
index 0000000..2ff7751
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -0,0 +1,415 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android/hardware/wifi/supplicant/1.0/ISupplicantStaIfaceCallback.h>
+#include <android/hardware/wifi/supplicant/1.0/types.h>
+#include <android/hardware/wifi/supplicant/1.1/ISupplicantStaIfaceCallback.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaIface.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaNetwork.h>
+#include <android/hardware/wifi/supplicant/1.2/types.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/Status.h>
+
+#include "supplicant_hidl_test_utils.h"
+#include "supplicant_hidl_test_utils_1_2.h"
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatus;
+using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatusCode;
+using ::android::hardware::wifi::supplicant::V1_2::DppAkm;
+using ::android::hardware::wifi::supplicant::V1_2::DppFailureCode;
+using ::android::hardware::wifi::supplicant::V1_2::DppNetRole;
+using ::android::hardware::wifi::supplicant::V1_2::DppProgressCode;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantStaIface;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantStaIfaceCallback;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantStaNetwork;
+
+#define TIMEOUT_PERIOD 60
+class IfaceDppCallback;
+
+class SupplicantStaIfaceHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        startSupplicantAndWaitForHidlService();
+        EXPECT_TRUE(turnOnExcessiveLogging());
+        sta_iface_ = getSupplicantStaIface_1_2();
+        ASSERT_NE(sta_iface_.get(), nullptr);
+        count_ = 0;
+    }
+
+    virtual void TearDown() override { stopSupplicant(); }
+
+    enum DppCallbackType {
+        ANY_CALLBACK = -2,
+        INVALID = -1,
+
+        EVENT_SUCCESS_CONFIG_SENT = 0,
+        EVENT_SUCCESS_CONFIG_RECEIVED,
+        EVENT_PROGRESS,
+        EVENT_FAILURE,
+    };
+
+    DppCallbackType dppCallbackType;
+    uint32_t code;
+
+    /* Used as a mechanism to inform the test about data/event callback */
+    inline void notify() {
+        std::unique_lock<std::mutex> lock(mtx_);
+        count_++;
+        cv_.notify_one();
+    }
+
+    /* Test code calls this function to wait for data/event callback */
+    inline std::cv_status wait(DppCallbackType waitForCallbackType) {
+        std::unique_lock<std::mutex> lock(mtx_);
+        EXPECT_NE(INVALID, waitForCallbackType);  // can't ASSERT in a
+                                                  // non-void-returning method
+        auto now = std::chrono::system_clock::now();
+        std::cv_status status =
+            cv_.wait_until(lock, now + std::chrono::seconds(TIMEOUT_PERIOD));
+        return status;
+    }
+
+   private:
+    // synchronization objects
+    std::mutex mtx_;
+    std::condition_variable cv_;
+    int count_;
+
+   protected:
+    // ISupplicantStaIface object used for all tests in this fixture.
+    sp<ISupplicantStaIface> sta_iface_;
+    bool isDppSupported() {
+        uint32_t keyMgmtMask = 0;
+
+        // We need to first get the key management capabilities from the device.
+        // If DPP is not supported, we just pass the test.
+        sta_iface_->getKeyMgmtCapabilities(
+            [&](const SupplicantStatus& status, uint32_t keyMgmtMaskInternal) {
+                EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+
+                keyMgmtMask = keyMgmtMaskInternal;
+            });
+
+        if (!(keyMgmtMask & ISupplicantStaNetwork::KeyMgmtMask::DPP)) {
+            // DPP not supported
+            return false;
+        }
+
+        return true;
+    }
+};
+
+class IfaceCallback : public ISupplicantStaIfaceCallback {
+    Return<void> onNetworkAdded(uint32_t /* id */) override { return Void(); }
+    Return<void> onNetworkRemoved(uint32_t /* id */) override { return Void(); }
+    Return<void> onStateChanged(
+        ISupplicantStaIfaceCallback::State /* newState */,
+        const hidl_array<uint8_t, 6>& /*bssid */, uint32_t /* id */,
+        const hidl_vec<uint8_t>& /* ssid */) override {
+        return Void();
+    }
+    Return<void> onAnqpQueryDone(
+        const hidl_array<uint8_t, 6>& /* bssid */,
+        const ISupplicantStaIfaceCallback::AnqpData& /* data */,
+        const ISupplicantStaIfaceCallback::Hs20AnqpData& /* hs20Data */)
+        override {
+        return Void();
+    }
+    virtual Return<void> onHs20IconQueryDone(
+        const hidl_array<uint8_t, 6>& /* bssid */,
+        const hidl_string& /* fileName */,
+        const hidl_vec<uint8_t>& /* data */) override {
+        return Void();
+    }
+    virtual Return<void> onHs20SubscriptionRemediation(
+        const hidl_array<uint8_t, 6>& /* bssid */,
+        ISupplicantStaIfaceCallback::OsuMethod /* osuMethod */,
+        const hidl_string& /* url*/) override {
+        return Void();
+    }
+    Return<void> onHs20DeauthImminentNotice(
+        const hidl_array<uint8_t, 6>& /* bssid */, uint32_t /* reasonCode */,
+        uint32_t /* reAuthDelayInSec */,
+        const hidl_string& /* url */) override {
+        return Void();
+    }
+    Return<void> onDisconnected(const hidl_array<uint8_t, 6>& /* bssid */,
+                                bool /* locallyGenerated */,
+                                ISupplicantStaIfaceCallback::ReasonCode
+                                /* reasonCode */) override {
+        return Void();
+    }
+    Return<void> onAssociationRejected(
+        const hidl_array<uint8_t, 6>& /* bssid */,
+        ISupplicantStaIfaceCallback::StatusCode /* statusCode */,
+        bool /*timedOut */) override {
+        return Void();
+    }
+    Return<void> onAuthenticationTimeout(
+        const hidl_array<uint8_t, 6>& /* bssid */) override {
+        return Void();
+    }
+    Return<void> onBssidChanged(
+        ISupplicantStaIfaceCallback::BssidChangeReason /* reason */,
+        const hidl_array<uint8_t, 6>& /* bssid */) override {
+        return Void();
+    }
+    Return<void> onEapFailure() override { return Void(); }
+    Return<void> onEapFailure_1_1(
+        ISupplicantStaIfaceCallback::EapErrorCode /* eapErrorCode */) override {
+        return Void();
+    }
+    Return<void> onWpsEventSuccess() override { return Void(); }
+    Return<void> onWpsEventFail(
+        const hidl_array<uint8_t, 6>& /* bssid */,
+        ISupplicantStaIfaceCallback::WpsConfigError /* configError */,
+        ISupplicantStaIfaceCallback::WpsErrorIndication /* errorInd */)
+        override {
+        return Void();
+    }
+    Return<void> onWpsEventPbcOverlap() override { return Void(); }
+    Return<void> onExtRadioWorkStart(uint32_t /* id */) override {
+        return Void();
+    }
+    Return<void> onExtRadioWorkTimeout(uint32_t /* id*/) override {
+        return Void();
+    }
+    Return<void> onDppSuccessConfigReceived(
+        const hidl_vec<uint8_t>& /* ssid */, const hidl_string& /* password */,
+        const hidl_array<uint8_t, 32>& /* psk */,
+        DppAkm /* securityAkm */) override {
+        return Void();
+    }
+    Return<void> onDppSuccessConfigSent() override { return Void(); }
+    Return<void> onDppProgress(DppProgressCode /* code */) override {
+        return Void();
+    }
+    Return<void> onDppFailure(DppFailureCode /* code */) override {
+        return Void();
+    }
+};
+
+class IfaceDppCallback : public IfaceCallback {
+    SupplicantStaIfaceHidlTest& parent_;
+
+    Return<void> onDppSuccessConfigReceived(
+        const hidl_vec<uint8_t>& /* ssid */, const hidl_string& /* password */,
+        const hidl_array<uint8_t, 32>& /* psk */,
+        DppAkm /* securityAkm */) override {
+        parent_.code = 0;
+        parent_.dppCallbackType = SupplicantStaIfaceHidlTest::DppCallbackType::
+            EVENT_SUCCESS_CONFIG_RECEIVED;
+        parent_.notify();
+        return Void();
+    }
+    Return<void> onDppSuccessConfigSent() override {
+        parent_.code = 0;
+        parent_.dppCallbackType = SupplicantStaIfaceHidlTest::DppCallbackType::
+            EVENT_SUCCESS_CONFIG_SENT;
+        parent_.notify();
+        return Void();
+    }
+    Return<void> onDppProgress(DppProgressCode code) override {
+        parent_.code = (uint32_t)code;
+        parent_.dppCallbackType =
+            SupplicantStaIfaceHidlTest::DppCallbackType::EVENT_PROGRESS;
+        parent_.notify();
+        return Void();
+    }
+    Return<void> onDppFailure(DppFailureCode code) override {
+        parent_.code = (uint32_t)code;
+        parent_.dppCallbackType =
+            SupplicantStaIfaceHidlTest::DppCallbackType::EVENT_FAILURE;
+        parent_.notify();
+        return Void();
+    }
+
+   public:
+    IfaceDppCallback(SupplicantStaIfaceHidlTest& parent) : parent_(parent){};
+};
+
+/*
+ * RegisterCallback_1_2
+ */
+TEST_F(SupplicantStaIfaceHidlTest, RegisterCallback_1_2) {
+    sta_iface_->registerCallback_1_2(
+        new IfaceCallback(), [](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+}
+
+/*
+ * GetKeyMgmtCapabilities
+ */
+TEST_F(SupplicantStaIfaceHidlTest, GetKeyMgmtCapabilities) {
+    sta_iface_->getKeyMgmtCapabilities(
+        [&](const SupplicantStatus& status, uint32_t keyMgmtMask) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+
+            // Even though capabilities vary, these two are always set in HAL
+            // v1.2
+            EXPECT_TRUE(keyMgmtMask & ISupplicantStaNetwork::KeyMgmtMask::NONE);
+            EXPECT_TRUE(keyMgmtMask &
+                        ISupplicantStaNetwork::KeyMgmtMask::IEEE8021X);
+        });
+}
+
+/*
+ * AddDppPeerUriAndRomveUri
+ */
+TEST_F(SupplicantStaIfaceHidlTest, AddDppPeerUriAndRomveUri) {
+    // We need to first get the key management capabilities from the device.
+    // If DPP is not supported, we just pass the test.
+    if (!isDppSupported()) {
+        // DPP not supported
+        return;
+    }
+
+    hidl_string uri =
+        "DPP:C:81/1;M:48d6d5bd1de1;I:G1197843;K:MDkwEwYHKoZIzj0CAQYIKoZIzj"
+        "0DAQcDIgAD0edY4X3N//HhMFYsZfMbQJTiNFtNIWF/cIwMB/gzqOM=;;";
+    uint32_t peer_id = 0;
+
+    // Add a peer URI
+    sta_iface_->addDppPeerUri(
+        uri, [&](const SupplicantStatus& status, uint32_t id) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_NE(0, id);
+            EXPECT_NE(-1, id);
+
+            peer_id = id;
+        });
+
+    // ...and then remove it.
+    sta_iface_->removeDppUri(peer_id, [&](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+}
+
+/*
+ * StartDppEnrolleeInitiator
+ */
+TEST_F(SupplicantStaIfaceHidlTest, StartDppEnrolleeInitiator) {
+    // We need to first get the key management capabilities from the device.
+    // If DPP is not supported, we just pass the test.
+    if (!isDppSupported()) {
+        // DPP not supported
+        return;
+    }
+
+    hidl_string uri =
+        "DPP:C:81/1;M:48d6d5bd1de1;I:G1197843;K:MDkwEwYHKoZIzj0CAQYIKoZIzj"
+        "0DAQcDIgAD0edY4X3N//HhMFYsZfMbQJTiNFtNIWF/cIwMB/gzqOM=;;";
+    uint32_t peer_id = 0;
+
+    // Register callbacks
+    sta_iface_->registerCallback_1_2(
+        new IfaceDppCallback(*this), [](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    // Add a peer URI
+    sta_iface_->addDppPeerUri(
+        uri, [&](const SupplicantStatus& status, uint32_t id) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_NE(0, id);
+            EXPECT_NE(-1, id);
+
+            peer_id = id;
+        });
+
+    // Start DPP as Enrollee-Initiator. Since this operation requires two
+    // devices, we start the operation and expect a timeout.
+    sta_iface_->startDppEnrolleeInitiator(
+        peer_id, 0, [&](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    // Wait for the timeout callback
+    ASSERT_EQ(std::cv_status::no_timeout,
+              wait(SupplicantStaIfaceHidlTest::DppCallbackType::EVENT_FAILURE));
+    ASSERT_EQ(SupplicantStaIfaceHidlTest::DppCallbackType::EVENT_FAILURE,
+              dppCallbackType);
+
+    // ...and then remove the peer URI.
+    sta_iface_->removeDppUri(peer_id, [&](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+}
+
+/*
+ * StartDppConfiguratorInitiator
+ */
+TEST_F(SupplicantStaIfaceHidlTest, StartDppConfiguratorInitiator) {
+    // We need to first get the key management capabilities from the device.
+    // If DPP is not supported, we just pass the test.
+    if (!isDppSupported()) {
+        // DPP not supported
+        return;
+    }
+
+    hidl_string uri =
+        "DPP:C:81/1;M:48d6d5bd1de1;I:G1197843;K:MDkwEwYHKoZIzj0CAQYIKoZIzj"
+        "0DAQcDIgAD0edY4X3N//HhMFYsZfMbQJTiNFtNIWF/cIwMB/gzqOM=;;";
+    uint32_t peer_id = 0;
+
+    // Register callbacks
+    sta_iface_->registerCallback_1_2(
+        new IfaceDppCallback(*this), [](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    // Add a peer URI
+    sta_iface_->addDppPeerUri(
+        uri, [&](const SupplicantStatus& status, uint32_t id) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_NE(0, id);
+            EXPECT_NE(-1, id);
+
+            peer_id = id;
+        });
+
+    std::string ssid =
+        "6D795F746573745F73736964";  // 'my_test_ssid' encoded in hex
+    std::string password = "746F70736563726574";  // 'topsecret' encoded in hex
+
+    // Start DPP as Configurator-Initiator. Since this operation requires two
+    // devices, we start the operation and expect a timeout.
+    sta_iface_->startDppConfiguratorInitiator(
+        peer_id, 0, ssid, password, NULL, DppNetRole::STA, DppAkm::PSK,
+        [&](const SupplicantStatus& status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    // Wait for the timeout callback
+    ASSERT_EQ(std::cv_status::no_timeout,
+              wait(SupplicantStaIfaceHidlTest::DppCallbackType::EVENT_FAILURE));
+    ASSERT_EQ(SupplicantStaIfaceHidlTest::DppCallbackType::EVENT_FAILURE,
+              dppCallbackType);
+
+    // ...and then remove the peer URI.
+    sta_iface_->removeDppUri(peer_id, [&](const SupplicantStatus& status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+}
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_sta_network_hidl_test.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_sta_network_hidl_test.cpp
new file mode 100644
index 0000000..ed421d7
--- /dev/null
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_sta_network_hidl_test.cpp
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <android/hardware/wifi/supplicant/1.1/ISupplicantStaNetwork.h>
+
+#include "supplicant_hidl_test_utils.h"
+#include "supplicant_hidl_test_utils_1_2.h"
+
+using ::android::sp;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatus;
+using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatusCode;
+using ::android::hardware::wifi::supplicant::V1_2::ISupplicantStaNetwork;
+// namespace {
+// constexpr uint8_t kTestIdentity[] = {0x45, 0x67, 0x98, 0x67, 0x56};
+// constexpr uint8_t kTestEncryptedIdentity[] = {0x35, 0x37, 0x58, 0x57, 0x26};
+//}  // namespace
+
+class SupplicantStaNetworkHidlTest
+    : public ::testing::VtsHalHidlTargetTestBase {
+   public:
+    virtual void SetUp() override {
+        startSupplicantAndWaitForHidlService();
+        EXPECT_TRUE(turnOnExcessiveLogging());
+        sta_network_ = createSupplicantStaNetwork_1_2();
+        ASSERT_NE(sta_network_.get(), nullptr);
+    }
+
+    virtual void TearDown() override { stopSupplicant(); }
+
+   protected:
+    // ISupplicantStaNetwork object used for all tests in this fixture.
+    sp<ISupplicantStaNetwork> sta_network_;
+};
+
+/*
+ * SetGetSaePassword
+ */
+TEST_F(SupplicantStaNetworkHidlTest, SetGetSaePassword) {
+    std::string password = "topsecret";
+
+    sta_network_->setSaePassword(password, [](const SupplicantStatus &status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+
+    sta_network_->getSaePassword(
+        [&password](const SupplicantStatus &status, std::string passwordOut) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_EQ(passwordOut.compare(password), 0);
+        });
+}
+
+/*
+ * SetGetSaePasswordId
+ */
+TEST_F(SupplicantStaNetworkHidlTest, SetGetSaePasswordId) {
+    std::string passwordId = "id1";
+
+    sta_network_->setSaePasswordId(
+        passwordId, [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    sta_network_->getSaePasswordId([&passwordId](const SupplicantStatus &status,
+                                                 std::string passwordIdOut) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        EXPECT_EQ(passwordIdOut.compare(passwordId), 0);
+    });
+}
+
+/*
+ * SetGetGroupMgmtCipher
+ */
+TEST_F(SupplicantStaNetworkHidlTest, SetGetGroupMgmtCipher) {
+    uint32_t groupMgmtCipher =
+        (uint32_t)ISupplicantStaNetwork::GroupMgmtCipherMask::BIP_GMAC_256;
+
+    sta_network_->setGroupMgmtCipher(
+        groupMgmtCipher, [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    sta_network_->getGroupMgmtCipher(
+        [&groupMgmtCipher](const SupplicantStatus &status,
+                           uint32_t groupMgmtCipherOut) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_EQ(groupMgmtCipherOut, groupMgmtCipher);
+        });
+}
+
+/*
+ * SetGetKeyMgmt_1_2
+ */
+TEST_F(SupplicantStaNetworkHidlTest, SetGetKeyMgmt_1_2) {
+    uint32_t keyMgmt = (uint32_t)ISupplicantStaNetwork::KeyMgmtMask::SAE;
+
+    sta_network_->setKeyMgmt_1_2(keyMgmt, [](const SupplicantStatus &status) {
+        EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+    });
+
+    sta_network_->getKeyMgmt_1_2(
+        [&keyMgmt](const SupplicantStatus &status, uint32_t keyMgmtOut) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_EQ(keyMgmtOut, keyMgmt);
+        });
+}
+
+/*
+ * SetGetGroupCipher_1_2
+ */
+TEST_F(SupplicantStaNetworkHidlTest, SetGetGroupCipher_1_2) {
+    uint32_t groupCipher =
+        (uint32_t)ISupplicantStaNetwork::GroupCipherMask::GCMP_256;
+
+    sta_network_->setGroupCipher_1_2(
+        groupCipher, [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    sta_network_->getGroupCipher_1_2(
+        [&groupCipher](const SupplicantStatus &status,
+                       uint32_t groupCipherOut) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_EQ(groupCipherOut, groupCipher);
+        });
+}
+
+/*
+ * SetGetPairwiseCipher_1_2
+ */
+TEST_F(SupplicantStaNetworkHidlTest, SetGetPairwiseCipher_1_2) {
+    uint32_t pairwiseCipher =
+        (uint32_t)ISupplicantStaNetwork::PairwiseCipherMask::GCMP_256;
+
+    sta_network_->setPairwiseCipher_1_2(
+        pairwiseCipher, [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    sta_network_->getPairwiseCipher_1_2(
+        [&pairwiseCipher](const SupplicantStatus &status,
+                          uint32_t pairwiseCipherOut) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+            EXPECT_EQ(pairwiseCipherOut, pairwiseCipher);
+        });
+}
+
+/*
+ * EnableSuiteBEapOpenSslCiphers
+ */
+TEST_F(SupplicantStaNetworkHidlTest, EnableSuiteBEapOpenSslCiphers) {
+    sta_network_->enableSuiteBEapOpenSslCiphers(
+        [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    sta_network_->enableSuiteBEapOpenSslCiphers(
+        [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+}
+
+/*
+ * EnableTlsSuiteBEapPhase1Param
+ */
+TEST_F(SupplicantStaNetworkHidlTest, EnableTlsSuiteBEapPhase1Param) {
+    sta_network_->enableTlsSuiteBEapPhase1Param(
+        true, [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+
+    sta_network_->enableTlsSuiteBEapPhase1Param(
+        false, [](const SupplicantStatus &status) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+}