diff --git a/audio/6.0/config/api/current.txt b/audio/6.0/config/api/current.txt
index 7aa147c..e67831c 100644
--- a/audio/6.0/config/api/current.txt
+++ b/audio/6.0/config/api/current.txt
@@ -250,7 +250,9 @@
 
   public class GlobalConfiguration {
     ctor public GlobalConfiguration();
+    method public boolean getCall_screen_mode_supported();
     method public boolean getSpeaker_drc_enabled();
+    method public void setCall_screen_mode_supported(boolean);
     method public void setSpeaker_drc_enabled(boolean);
   }
 
diff --git a/audio/6.0/config/audio_policy_configuration.xsd b/audio/6.0/config/audio_policy_configuration.xsd
index 0dc89bb..29f6f38 100644
--- a/audio/6.0/config/audio_policy_configuration.xsd
+++ b/audio/6.0/config/audio_policy_configuration.xsd
@@ -66,6 +66,7 @@
     </xs:element>
     <xs:complexType name="globalConfiguration">
         <xs:attribute name="speaker_drc_enabled" type="xs:boolean" use="required"/>
+        <xs:attribute name="call_screen_mode_supported" type="xs:boolean" use="optional"/>
     </xs:complexType>
     <xs:complexType name="modules">
         <xs:annotation>
diff --git a/audio/common/6.0/types.hal b/audio/common/6.0/types.hal
index 132f86d..0c97c36 100644
--- a/audio/common/6.0/types.hal
+++ b/audio/common/6.0/types.hal
@@ -556,6 +556,8 @@
     IN_CALL          = 2,
     /** Calls handled by apps (Eg: Hangout). */
     IN_COMMUNICATION = 3,
+    /** Call screening in progress */
+    CALL_SCREEN      = 4,
 };
 
 @export(name="", value_prefix="AUDIO_DEVICE_")
diff --git a/automotive/vehicle/2.0/default/Android.bp b/automotive/vehicle/2.0/default/Android.bp
index 3fd0539..ed09859 100644
--- a/automotive/vehicle/2.0/default/Android.bp
+++ b/automotive/vehicle/2.0/default/Android.bp
@@ -71,10 +71,10 @@
     whole_static_libs: ["android.hardware.automotive.vehicle@2.0-manager-lib"],
     shared_libs: [
         "libbase",
+        "libjsoncpp",
         "libprotobuf-cpp-lite",
     ],
     static_libs: [
-        "libjsoncpp",
         "libqemu_pipe",
         "android.hardware.automotive.vehicle@2.0-libproto-native",
     ],
@@ -106,13 +106,13 @@
     srcs: ["VehicleService.cpp"],
     shared_libs: [
         "libbase",
+        "libjsoncpp",
         "libprotobuf-cpp-lite",
     ],
     static_libs: [
         "android.hardware.automotive.vehicle@2.0-manager-lib",
         "android.hardware.automotive.vehicle@2.0-default-impl-lib",
         "android.hardware.automotive.vehicle@2.0-libproto-native",
-        "libjsoncpp",
         "libqemu_pipe",
     ],
 }
diff --git a/boot/1.1/vts/functional/VtsHalBootV1_1TargetTest.cpp b/boot/1.1/vts/functional/VtsHalBootV1_1TargetTest.cpp
index fba9a5e..7c58ef3 100644
--- a/boot/1.1/vts/functional/VtsHalBootV1_1TargetTest.cpp
+++ b/boot/1.1/vts/functional/VtsHalBootV1_1TargetTest.cpp
@@ -81,6 +81,6 @@
 }
 
 INSTANTIATE_TEST_SUITE_P(
-        , BootHidlTest,
+        PerInstance, BootHidlTest,
         testing::ValuesIn(android::hardware::getAllHalInstanceNames(IBootControl::descriptor)),
         android::hardware::PrintInstanceNameToString);
diff --git a/current.txt b/current.txt
index b86c080..a114bf4 100644
--- a/current.txt
+++ b/current.txt
@@ -594,19 +594,16 @@
 ce8dbe76eb9ee94b46ef98f725be992e760a5751073d4f4912484026541371f3 android.hardware.health@2.1::IHealth
 26f04510a0b57aba5167c5c0a7c2f077c2acbb98b81902a072517829fd9fd67f android.hardware.health@2.1::IHealthInfoCallback
 db47f4ceceb1f06c656f39caa70c557b0f8471ef59fd58611bea667ffca20101 android.hardware.health@2.1::types
-34515afa2bb792d3c6d8495a5f5d907d179c8507ca5e55c10050d02ae1d516ef android.hardware.neuralnetworks@1.3::IDevice
+9e59fffceed0dd72a9799e04505db5f777bbbea1af0695ba4107ef6d967c6fda android.hardware.neuralnetworks@1.3::IDevice
+fd5a2b723b75acbdd9f31bd07e0f83293c52f99f8d9b87bf58eeb6018f665fde android.hardware.neuralnetworks@1.3::IPreparedModelCallback
 b74fe72cfe438f50e772e6a307657ff449d5bde83c15dd1f140ff2edbe73499c android.hardware.neuralnetworks@1.3::types
-544049dcda3f943ad67d83d5277f06681a3782982a9af5a78b5d4e8d295d061a android.hardware.vibrator@1.4::IVibrator
-5e1c12efbbba89c9143d10b1b90eceff8bc79aa079f5106215b528e104fef101 android.hardware.vibrator@1.4::IVibratorCallback
-033eae03c09ebc75e82db37bc39995dfaa9086745577b44d9e14e9ccb48bd8cc android.hardware.vibrator@1.4::types
 3e01d4446cd69fd1c48f8572efd97487bc179564b32bd795800b97bbe10be37b android.hardware.wifi@1.4::IWifi
 a64467bae843569f0d465c5be7f0c7a5b987985b55a3ef4794dd5afc68538650 android.hardware.wifi.supplicant@1.3::ISupplicant
-0a7ff83fd0326b82232e1609da98f34960be11335df72fc407ad238d7bd0e081 android.hardware.wifi.supplicant@1.3::ISupplicantStaIface
+44445b8a03d7b9e68b2fbd954672c18a8fce9e32851b0692f4f4ab3407f86ecb android.hardware.wifi.supplicant@1.3::ISupplicantStaIface
 619fc9839ec6e369cfa9b28e3e9412e6885720ff8f9b5750c1b6ffb905120391 android.hardware.wifi.supplicant@1.3::ISupplicantStaIfaceCallback
 c9273429fcf98d797d3bb07fdba6f1be95bf960f9255cde169fd1ca4db85f856 android.hardware.wifi.supplicant@1.3::ISupplicantStaNetwork
-b0f8c9cd61a45a8c1b4a8e40913ecaea0921011cbe2305a6fa5a2feaa0d36c30 android.hardware.wifi.supplicant@1.3::types
+9b0a3ab6f4f74b971ed094426d8a443e29b512ff03e1ab50c07156396cdb2483 android.hardware.wifi.supplicant@1.3::types
 41c602462ccd1b19cfd645994be4de4c07fc197ff58a54e84476b31908e61e21 android.hardware.radio@1.5::types
 a8691c71747c3f14f7a043598e856425077f755e55990507a9132ad62f8ab3f7 android.hardware.radio@1.5::IRadio
 a62a93faf173b14a6175b683ebf61ffa568dc61f81e369d2dce7b1265e86cf2f android.hardware.radio@1.5::IRadioIndication
 15daf260aaf6781b911450bc94e1a164901f9c0fe0bda68f8434f0a903f66e05 android.hardware.radio@1.5::IRadioResponse
-
diff --git a/graphics/composer/2.1/utils/hwc2on1adapter/Android.bp b/graphics/composer/2.1/utils/hwc2on1adapter/Android.bp
index 0af9745..ec7a0b9 100644
--- a/graphics/composer/2.1/utils/hwc2on1adapter/Android.bp
+++ b/graphics/composer/2.1/utils/hwc2on1adapter/Android.bp
@@ -22,40 +22,12 @@
         "-Werror",
     ],
     cppflags: [
-        "-Weverything",
+        "-Wextra",
         "-Wunused",
         "-Wunreachable-code",
 
-        // The static constructors and destructors in this library have not been noted to
-        // introduce significant overheads
-        "-Wno-exit-time-destructors",
-        "-Wno-global-constructors",
-
-        // We only care about compiling as C++14
-        "-Wno-c++98-compat-pedantic",
-
-        // android/sensors.h uses nested anonymous unions and anonymous structs
-        "-Wno-nested-anon-types",
-        "-Wno-gnu-anonymous-struct",
-
-        // Don't warn about struct padding
-        "-Wno-padded",
-
-        // hwcomposer2.h features switch covering all cases.
-        "-Wno-covered-switch-default",
-
-        // hwcomposer.h features zero size array.
-        "-Wno-zero-length-array",
-
         // Disabling warning specific to hwc2on1adapter code
-        "-Wno-double-promotion",
-        "-Wno-sign-conversion",
-        "-Wno-switch-enum",
-        "-Wno-float-equal",
-        "-Wno-shorten-64-to-32",
         "-Wno-sign-compare",
-        "-Wno-missing-prototypes",
-        "-Wno-format-pedantic",
     ],
 
     srcs: [
diff --git a/health/2.1/vts/functional/VtsHalHealthV2_1TargetTest.cpp b/health/2.1/vts/functional/VtsHalHealthV2_1TargetTest.cpp
index 7df4926..da9f5bb 100644
--- a/health/2.1/vts/functional/VtsHalHealthV2_1TargetTest.cpp
+++ b/health/2.1/vts/functional/VtsHalHealthV2_1TargetTest.cpp
@@ -252,7 +252,7 @@
 }
 
 INSTANTIATE_TEST_SUITE_P(
-        , HealthHidlTest,
+        PerInstance, HealthHidlTest,
         testing::ValuesIn(android::hardware::getAllHalInstanceNames(IHealth::descriptor)),
         android::hardware::PrintInstanceNameToString);
 
diff --git a/neuralnetworks/1.3/Android.bp b/neuralnetworks/1.3/Android.bp
index 0615ec6..8e3e9f1 100644
--- a/neuralnetworks/1.3/Android.bp
+++ b/neuralnetworks/1.3/Android.bp
@@ -9,6 +9,7 @@
     srcs: [
         "types.hal",
         "IDevice.hal",
+        "IPreparedModelCallback.hal",
     ],
     interfaces: [
         "android.hardware.neuralnetworks@1.0",
diff --git a/neuralnetworks/1.3/IDevice.hal b/neuralnetworks/1.3/IDevice.hal
index ee36fb4..1295d6a 100644
--- a/neuralnetworks/1.3/IDevice.hal
+++ b/neuralnetworks/1.3/IDevice.hal
@@ -22,7 +22,7 @@
 import @1.2::DeviceType;
 import @1.2::Extension;
 import @1.2::IDevice;
-import @1.2::IPreparedModelCallback;
+import IPreparedModelCallback;
 
 /**
  * This interface represents a device driver.
@@ -134,18 +134,18 @@
      *     not provided, or match the numModelCache returned from
      *     getNumberOfCacheFilesNeeded. The cache handles will be provided in
      *     the same order when retrieving the preparedModel from cache files
-     *     with prepareModelFromCache.
+     *     with prepareModelFromCache_1_3.
      * @param dataCache A vector of handles with each entry holding exactly one
      *     cache file descriptor for the constants' cache. The length of the
      *     vector must either be 0 indicating that caching information is not
      *     provided, or match the numDataCache returned from
      *     getNumberOfCacheFilesNeeded. The cache handles will be provided in
      *     the same order when retrieving the preparedModel from cache files
-     *     with prepareModelFromCache.
+     *     with prepareModelFromCache_1_3.
      * @param token A caching token of length Constant::BYTE_SIZE_OF_CACHE_TOKEN
      *     identifying the prepared model. The same token will be provided when
      *     retrieving the prepared model from the cache files with
-     *     prepareModelFromCache.  Tokens should be chosen to have a low rate of
+     *     prepareModelFromCache_1_3.  Tokens should be chosen to have a low rate of
      *     collision for a particular application. The driver cannot detect a
      *     collision; a collision will result in a failed execution or in a
      *     successful execution that produces incorrect output values. If both
@@ -168,4 +168,83 @@
                      uint8_t[Constant:BYTE_SIZE_OF_CACHE_TOKEN] token,
                      IPreparedModelCallback callback)
         generates (ErrorStatus status);
+
+    /**
+     * Creates a prepared model from cache files for execution.
+     *
+     * prepareModelFromCache_1_3 is used to retrieve a prepared model directly from
+     * cache files to avoid slow model compilation time. There are
+     * two types of cache file handles provided to the driver: model cache
+     * and data cache. For more information on the two types of cache handles,
+     * refer to getNumberOfCacheFilesNeeded.
+     *
+     * The file descriptors must be opened with read and write permission. A file may
+     * have any size, and the corresponding file descriptor may have any offset. The
+     * driver must truncate a file to zero size before writing to that file. The file
+     * descriptors may be closed by the client once the asynchronous preparation has
+     * finished. The driver must dup a file descriptor if it wants to get access to
+     * the cache file later.
+     *
+     * The model is prepared asynchronously with respect to the caller. The
+     * prepareModelFromCache_1_3 function must verify the inputs to the
+     * prepareModelFromCache_1_3 function are correct, and that the security-sensitive
+     * cache has not been modified since it was last written by the driver.
+     * If there is an error, or if compilation caching is not supported, or if the
+     * security-sensitive cache has been modified, prepareModelFromCache_1_3 must
+     * immediately invoke the callback with the appropriate ErrorStatus value and
+     * nullptr for the IPreparedModel, then return with the same ErrorStatus. If
+     * the inputs to the prepareModelFromCache_1_3 function are valid, the security-sensitive
+     * cache is not modified, and there is no error, prepareModelFromCache_1_3 must launch an
+     * asynchronous task to prepare the model in the background, and immediately return
+     * from prepareModelFromCache_1_3 with ErrorStatus::NONE. If the asynchronous task
+     * fails to launch, prepareModelFromCache_1_3 must immediately invoke the callback
+     * with ErrorStatus::GENERAL_FAILURE and nullptr for the IPreparedModel, then
+     * return with ErrorStatus::GENERAL_FAILURE.
+     *
+     * When the asynchronous task has finished preparing the model, it must
+     * immediately invoke the callback function provided as an input to
+     * prepareModelFromCache_1_3. If the model was prepared successfully, the
+     * callback object must be invoked with an error status of ErrorStatus::NONE
+     * and the produced IPreparedModel object. If an error occurred preparing
+     * the model, the callback object must be invoked with the appropriate
+     * ErrorStatus value and nullptr for the IPreparedModel.
+     *
+     * The only information that may be unknown to the model at this stage is
+     * the shape of the tensors, which may only be known at execution time. As
+     * such, some driver services may return partially prepared models, where
+     * the prepared model may only be finished when it is paired with a set of
+     * inputs to the model. Note that the same prepared model object may be
+     * used with different shapes of inputs on different (possibly concurrent)
+     * executions.
+     *
+     * @param modelCache A vector of handles with each entry holding exactly one
+     *     cache file descriptor for the security-sensitive cache. The length of
+     *     the vector must match the numModelCache returned from getNumberOfCacheFilesNeeded.
+     *     The cache handles will be provided in the same order as with prepareModel_1_3.
+     * @param dataCache A vector of handles with each entry holding exactly one
+     *     cache file descriptor for the constants' cache. The length of the vector
+     *     must match the numDataCache returned from getNumberOfCacheFilesNeeded.
+     *     The cache handles will be provided in the same order as with prepareModel_1_3.
+     * @param token A caching token of length Constant::BYTE_SIZE_OF_CACHE_TOKEN
+     *     identifying the prepared model. It is the same token provided when saving
+     *     the cache files with prepareModel_1_3. Tokens should be chosen
+     *     to have a low rate of collision for a particular application. The driver
+     *     cannot detect a collision; a collision will result in a failed execution
+     *     or in a successful execution that produces incorrect output values.
+     * @param callback A callback object used to return the error status of
+     *     preparing the model for execution and the prepared model if
+     *     successful, nullptr otherwise. The callback object's notify function
+     *     must be called exactly once, even if the model could not be prepared.
+     * @return status Error status of launching a task which prepares the model
+     *     in the background; must be:
+     *     - NONE if preparation task is successfully launched
+     *     - DEVICE_UNAVAILABLE if driver is offline or busy
+     *     - GENERAL_FAILURE if caching is not supported or if there is an
+     *       unspecified error
+     *     - INVALID_ARGUMENT if one of the input arguments is invalid
+     */
+    prepareModelFromCache_1_3(vec<handle> modelCache, vec<handle> dataCache,
+                              uint8_t[Constant:BYTE_SIZE_OF_CACHE_TOKEN] token,
+                              IPreparedModelCallback callback)
+            generates (ErrorStatus status);
 };
diff --git a/neuralnetworks/1.3/IPreparedModelCallback.hal b/neuralnetworks/1.3/IPreparedModelCallback.hal
new file mode 100644
index 0000000..7cc5ae0
--- /dev/null
+++ b/neuralnetworks/1.3/IPreparedModelCallback.hal
@@ -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.
+ */
+
+package android.hardware.neuralnetworks@1.3;
+
+import @1.0::ErrorStatus;
+import @1.2::IPreparedModelCallback;
+import @1.2::IPreparedModel;
+
+/**
+ * IPreparedModelCallback must be used to return a prepared model produced by an
+ * asynchronous task launched from IDevice::prepareModel.
+ */
+interface IPreparedModelCallback extends @1.2::IPreparedModelCallback {
+
+    /**
+     * There are three notify methods declared for the IPreparedModelCallback
+     * interface: notify_1_3, notify_1_2, and notify. One of the three
+     * notify methods must be invoked immediately after the asynchronous
+     * task holding this callback has finished preparing the model. If the model was
+     * successfully prepared, one of the notify methods must be invoked with
+     * ErrorStatus::NONE and the prepared model. If the model was not able to be
+     * successfully prepared, one of the notify methods must be invoked with the
+     * appropriate ErrorStatus and nullptr as the IPreparedModel. If the asynchronous
+     * task holding this callback fails to launch or if the model provided to
+     * IDevice::prepareModel is invalid, one of the notify methods must be invoked
+     * with the appropriate error as well as nullptr for the IPreparedModel.
+     *
+     * @param status Error status returned from the asynchronous model
+     *               preparation task; must be:
+     *               - NONE if the asynchronous task successfully prepared the
+     *                 model
+     *               - DEVICE_UNAVAILABLE if driver is offline or busy
+     *               - GENERAL_FAILURE if the asynchronous task resulted in an
+     *                 unspecified error
+     *               - INVALID_ARGUMENT if one of the input arguments to
+     *                 prepareModel is invalid
+     * @param preparedModel A model that has been asynchronously prepared for
+     *                      execution. If the model was unable to be prepared
+     *                      due to an error, nullptr must be passed in place of
+     *                      the IPreparedModel object.
+     */
+    oneway notify_1_3(ErrorStatus status, IPreparedModel preparedModel);
+};
diff --git a/neuralnetworks/1.3/vts/functional/Android.bp b/neuralnetworks/1.3/vts/functional/Android.bp
index 0f2720e..e2795de 100644
--- a/neuralnetworks/1.3/vts/functional/Android.bp
+++ b/neuralnetworks/1.3/vts/functional/Android.bp
@@ -14,6 +14,24 @@
 // limitations under the License.
 //
 
+cc_library_static {
+    name: "VtsHalNeuralNetworksV1_3Callbacks",
+    defaults: ["VtsHalTargetTestDefaults"],
+    export_include_dirs: ["include"],
+    srcs: [
+        "Callbacks.cpp",
+    ],
+    static_libs: [
+        "android.hardware.neuralnetworks@1.0",
+        "android.hardware.neuralnetworks@1.1",
+        "android.hardware.neuralnetworks@1.2",
+        "android.hardware.neuralnetworks@1.3",
+    ],
+    header_libs: [
+        "libbase_headers",
+    ]
+}
+
 cc_test {
     name: "VtsHalNeuralnetworksV1_3TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
@@ -44,6 +62,7 @@
         "libneuralnetworks_utils",
         "VtsHalNeuralNetworksV1_0_utils",
         "VtsHalNeuralNetworksV1_2Callbacks",
+        "VtsHalNeuralNetworksV1_3Callbacks",
     ],
     whole_static_libs: [
         "neuralnetworks_generated_V1_0_example",
diff --git a/neuralnetworks/1.3/vts/functional/Callbacks.cpp b/neuralnetworks/1.3/vts/functional/Callbacks.cpp
new file mode 100644
index 0000000..435db46
--- /dev/null
+++ b/neuralnetworks/1.3/vts/functional/Callbacks.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.
+ */
+
+#define LOG_TAG "Callbacks"
+
+#include "1.3/Callbacks.h"
+
+#include <android-base/logging.h>
+
+#include <limits>
+
+namespace android::hardware::neuralnetworks::V1_3::implementation {
+
+using V1_0::ErrorStatus;
+
+// PreparedModelCallback methods begin here
+
+Return<void> PreparedModelCallback::notify(ErrorStatus errorStatus,
+                                           const sp<V1_0::IPreparedModel>& preparedModel) {
+    {
+        std::lock_guard<std::mutex> hold(mMutex);
+
+        // quick-return if object has already been notified
+        if (mNotified) {
+            return Void();
+        }
+
+        // store results and mark as notified
+        mErrorStatus = errorStatus;
+        mPreparedModel = preparedModel;
+        mNotified = true;
+    }
+
+    mCondition.notify_all();
+    return Void();
+}
+
+Return<void> PreparedModelCallback::notify_1_2(ErrorStatus errorStatus,
+                                               const sp<V1_2::IPreparedModel>& preparedModel) {
+    return notify(errorStatus, preparedModel);
+}
+
+Return<void> PreparedModelCallback::notify_1_3(ErrorStatus errorStatus,
+                                               const sp<V1_2::IPreparedModel>& preparedModel) {
+    return notify(errorStatus, preparedModel);
+}
+
+void PreparedModelCallback::wait() const {
+    std::unique_lock<std::mutex> lock(mMutex);
+    mCondition.wait(lock, [this] { return mNotified; });
+}
+
+ErrorStatus PreparedModelCallback::getStatus() const {
+    wait();
+    return mErrorStatus;
+}
+
+sp<V1_0::IPreparedModel> PreparedModelCallback::getPreparedModel() const {
+    wait();
+    return mPreparedModel;
+}
+
+}  // namespace android::hardware::neuralnetworks::V1_3::implementation
diff --git a/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp b/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp
index 0ac4738..ea2398b 100644
--- a/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp
+++ b/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp
@@ -28,7 +28,7 @@
 #include <random>
 #include <thread>
 
-#include "1.2/Callbacks.h"
+#include "1.3/Callbacks.h"
 #include "GeneratedTestHarness.h"
 #include "MemoryUtils.h"
 #include "TestHarness.h"
@@ -48,12 +48,12 @@
 namespace android::hardware::neuralnetworks::V1_3::vts::functional {
 
 using namespace test_helper;
+using implementation::PreparedModelCallback;
 using V1_0::ErrorStatus;
 using V1_1::ExecutionPreference;
 using V1_2::Constant;
 using V1_2::IPreparedModel;
 using V1_2::OperationType;
-using V1_2::implementation::PreparedModelCallback;
 
 namespace float32_model {
 
@@ -231,7 +231,7 @@
         ASSERT_NE(kDevice.get(), nullptr);
 
         // Create cache directory. The cache directory and a temporary cache file is always created
-        // to test the behavior of prepareModelFromCache, even when caching is not supported.
+        // to test the behavior of prepareModelFromCache_1_3, even when caching is not supported.
         char cacheDirTemp[] = "/data/local/tmp/TestCompilationCachingXXXXXX";
         char* cacheDir = mkdtemp(cacheDirTemp);
         ASSERT_NE(cacheDir, nullptr);
@@ -370,7 +370,7 @@
         // Launch prepare model from cache.
         sp<PreparedModelCallback> preparedModelCallback = new PreparedModelCallback();
         hidl_array<uint8_t, sizeof(mToken)> cacheToken(mToken);
-        Return<ErrorStatus> prepareLaunchStatus = kDevice->prepareModelFromCache(
+        Return<ErrorStatus> prepareLaunchStatus = kDevice->prepareModelFromCache_1_3(
                 modelCache, dataCache, cacheToken, preparedModelCallback);
         ASSERT_TRUE(prepareLaunchStatus.isOk());
         if (static_cast<ErrorStatus>(prepareLaunchStatus) != ErrorStatus::NONE) {
diff --git a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
index 8a7ed24..4f9b6f9 100644
--- a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
+++ b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
@@ -29,6 +29,7 @@
 #include <android/hardware/neuralnetworks/1.2/IPreparedModelCallback.h>
 #include <android/hardware/neuralnetworks/1.2/types.h>
 #include <android/hardware/neuralnetworks/1.3/IDevice.h>
+#include <android/hardware/neuralnetworks/1.3/IPreparedModelCallback.h>
 #include <android/hardware/neuralnetworks/1.3/types.h>
 #include <android/hidl/allocator/1.0/IAllocator.h>
 #include <android/hidl/memory/1.0/IMemory.h>
@@ -42,6 +43,7 @@
 
 #include "1.0/Utils.h"
 #include "1.2/Callbacks.h"
+#include "1.3/Callbacks.h"
 #include "ExecutionBurstController.h"
 #include "MemoryUtils.h"
 #include "TestHarness.h"
@@ -52,6 +54,7 @@
 
 using namespace test_helper;
 using hidl::memory::V1_0::IMemory;
+using implementation::PreparedModelCallback;
 using V1_0::DataLocation;
 using V1_0::ErrorStatus;
 using V1_0::OperandLifeTime;
@@ -65,7 +68,6 @@
 using V1_2::SymmPerChannelQuantParams;
 using V1_2::Timing;
 using V1_2::implementation::ExecutionCallback;
-using V1_2::implementation::PreparedModelCallback;
 using HidlToken = hidl_array<uint8_t, static_cast<uint32_t>(Constant::BYTE_SIZE_OF_CACHE_TOKEN)>;
 
 enum class OutputType { FULLY_SPECIFIED, UNSPECIFIED, INSUFFICIENT };
diff --git a/neuralnetworks/1.3/vts/functional/ValidateModel.cpp b/neuralnetworks/1.3/vts/functional/ValidateModel.cpp
index 44b32a9..bdda790 100644
--- a/neuralnetworks/1.3/vts/functional/ValidateModel.cpp
+++ b/neuralnetworks/1.3/vts/functional/ValidateModel.cpp
@@ -17,12 +17,13 @@
 #define LOG_TAG "neuralnetworks_hidl_hal_test"
 
 #include "1.0/Utils.h"
-#include "1.2/Callbacks.h"
+#include "1.3/Callbacks.h"
 #include "GeneratedTestHarness.h"
 #include "VtsHalNeuralnetworks.h"
 
 namespace android::hardware::neuralnetworks::V1_3::vts::functional {
 
+using implementation::PreparedModelCallback;
 using V1_0::ErrorStatus;
 using V1_0::OperandLifeTime;
 using V1_1::ExecutionPreference;
@@ -30,7 +31,6 @@
 using V1_2::OperationType;
 using V1_2::OperationTypeRange;
 using V1_2::SymmPerChannelQuantParams;
-using V1_2::implementation::PreparedModelCallback;
 using HidlToken =
         hidl_array<uint8_t, static_cast<uint32_t>(V1_2::Constant::BYTE_SIZE_OF_CACHE_TOKEN)>;
 
diff --git a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp
index 4f0e150..da5d95b 100644
--- a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp
+++ b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp
@@ -21,8 +21,8 @@
 #include <hidl/ServiceManagement.h>
 #include <string>
 #include <utility>
-#include "1.0/Callbacks.h"
 #include "1.0/Utils.h"
+#include "1.3/Callbacks.h"
 #include "GeneratedTestHarness.h"
 #include "TestHarness.h"
 
@@ -30,11 +30,11 @@
 
 using HidlToken =
         hidl_array<uint8_t, static_cast<uint32_t>(V1_2::Constant::BYTE_SIZE_OF_CACHE_TOKEN)>;
+using implementation::PreparedModelCallback;
 using V1_0::ErrorStatus;
 using V1_0::Request;
 using V1_1::ExecutionPreference;
 using V1_2::IPreparedModel;
-using V1_2::implementation::PreparedModelCallback;
 
 // internal helper function
 void createPreparedModel(const sp<IDevice>& device, const Model& model,
diff --git a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h
index fc654ce..9ccc911 100644
--- a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h
+++ b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h
@@ -22,7 +22,7 @@
 #include <android/hardware/neuralnetworks/1.3/types.h>
 #include <gtest/gtest.h>
 #include "1.0/Utils.h"
-#include "1.2/Callbacks.h"
+#include "1.3/Callbacks.h"
 
 namespace android::hardware::neuralnetworks::V1_3::vts::functional {
 
@@ -51,7 +51,7 @@
 
 // Utility function to get PreparedModel from callback and downcast to V1_2.
 sp<V1_2::IPreparedModel> getPreparedModel_1_2(
-        const sp<V1_2::implementation::PreparedModelCallback>& callback);
+        const sp<implementation::PreparedModelCallback>& callback);
 
 }  // namespace android::hardware::neuralnetworks::V1_3::vts::functional
 
diff --git a/neuralnetworks/1.3/vts/functional/include/1.3/Callbacks.h b/neuralnetworks/1.3/vts/functional/include/1.3/Callbacks.h
new file mode 100644
index 0000000..9376a92
--- /dev/null
+++ b/neuralnetworks/1.3/vts/functional/include/1.3/Callbacks.h
@@ -0,0 +1,185 @@
+/*
+ * 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_NEURALNETWORKS_V1_3_CALLBACKS_H
+#define ANDROID_HARDWARE_NEURALNETWORKS_V1_3_CALLBACKS_H
+
+#include <android-base/thread_annotations.h>
+#include <android/hardware/neuralnetworks/1.0/IPreparedModelCallback.h>
+#include <android/hardware/neuralnetworks/1.2/IPreparedModelCallback.h>
+#include <android/hardware/neuralnetworks/1.3/IPreparedModelCallback.h>
+#include <hidl/Status.h>
+#include <condition_variable>
+#include <mutex>
+
+/*
+ * The Callback classes are used internally by the NeuralNetworks runtime to
+ * synchronize between different threads. An asynchronous task is launched
+ * paired with a callback object. When a client thread requires the output being
+ * generated by the asynchronous task, the client thread can wait for the result
+ * and be blocked until it has completed. Any wait may safely be called
+ * concurrently, even on the same callback object. When the asynchronous task
+ * has finished its workload, it must immediately call "notify*". If the
+ * asynchronous task has failed to launch, the function that tried to launch the
+ * asynchronous task must immediately call "notify*". This "notify*" call
+ * awakens any client threads waiting on the callback object.
+ *
+ * These classes exist to enable synchronization across HIDL. When
+ * synchronization is only required in the same process, consider using
+ * std::future, std::mutex, std::condition_variable, or std::experimental::latch
+ * instead.
+ */
+
+namespace android::hardware::neuralnetworks::V1_3::implementation {
+
+/**
+ * The PreparedModelCallback class is used to receive the error status of
+ * preparing a model as well as the prepared model from a task executing
+ * asynchronously with respect to the runtime. If a calling thread calls wait
+ * or get* on a PreparedModelCallback object and the corresponding asynchronous
+ * task has not finished preparing the model, the calling thread will block
+ * until the asynchronous task has called notify*.
+ *
+ * If the callback object is notified more than once, only the results of the
+ * first call to notify* are used, and the results from subsequent calls are
+ * discarded.
+ *
+ * This callback object is passed as an argument to IDevice::prepareModel*.
+ */
+class PreparedModelCallback : public IPreparedModelCallback {
+  public:
+    /**
+     * IPreparedModelCallback::notify marks the callback object with the return
+     * status of the asynchronous model preparation along with the prepared
+     * model, and allows all prior and future wait calls on the
+     * PreparedModelCallback object to proceed.
+     *
+     * One of IPreparedModelCallback::notify, IPreparedModelCallback::notify_1_2,
+     * or IPreparedModelCallback::notify_1_3 must be called on a given
+     * PreparedModelCallback object.
+     *
+     * If the callback object is notified more than once, only the results of
+     * the first call to notify* are used, and the results from subsequent calls
+     * are discarded.
+     *
+     * @param status Error status returned from asynchronously preparing the
+     *     model; will be:
+     *     - NONE if the asynchronous preparation was successful
+     *     - DEVICE_UNAVAILABLE if driver is offline or busy
+     *     - GENERAL_FAILURE if there is an unspecified error
+     *     - INVALID_ARGUMENT if the input model is invalid
+     * @param preparedModel Returned model that has been prepared for execution,
+     *     nullptr if the model was unable to be prepared.
+     */
+    Return<void> notify(V1_0::ErrorStatus status,
+                        const sp<V1_0::IPreparedModel>& preparedModel) override;
+
+    /**
+     * IPreparedModelCallback::notify_1_2 marks the callback object with the
+     * return status of the asynchronous model preparation along with the
+     * prepared model, and allows all prior and future wait calls on the
+     * PreparedModelCallback object to proceed.
+     *
+     * One of IPreparedModelCallback::notify, IPreparedModelCallback::notify_1_2,
+     * or IPreparedModelCallback::notify_1_3 must be called on a given
+     * PreparedModelCallback object.
+     *
+     * If the callback object is notified more than once, only the results of
+     * the first call to notify* are used, and the results from subsequent calls
+     * are discarded.
+     *
+     * @param status Error status returned from asynchronously preparing the
+     *     model; will be:
+     *     - NONE if the asynchronous preparation was successful
+     *     - DEVICE_UNAVAILABLE if driver is offline or busy
+     *     - GENERAL_FAILURE if there is an unspecified error
+     *     - INVALID_ARGUMENT if the input model is invalid
+     * @param preparedModel Returned model that has been prepared for execution,
+     *     nullptr if the model was unable to be prepared.
+     */
+    Return<void> notify_1_2(V1_0::ErrorStatus status,
+                            const sp<V1_2::IPreparedModel>& preparedModel) override;
+
+    /**
+     * IPreparedModelCallback::notify_1_3 marks the callback object with the
+     * return status of the asynchronous model preparation along with the
+     * prepared model, and allows all prior and future wait calls on the
+     * PreparedModelCallback object to proceed.
+     *
+     * One of IPreparedModelCallback::notify, IPreparedModelCallback::notify_1_2,
+     * or IPreparedModelCallback::notify_1_3 must be called on a given
+     * PreparedModelCallback object.
+     *
+     * If the callback object is notified more than once, only the results of
+     * the first call to notify* are used, and the results from subsequent calls
+     * are discarded.
+     *
+     * @param status Error status returned from asynchronously preparing the
+     *     model; will be:
+     *     - NONE if the asynchronous preparation was successful
+     *     - DEVICE_UNAVAILABLE if driver is offline or busy
+     *     - GENERAL_FAILURE if there is an unspecified error
+     *     - INVALID_ARGUMENT if the input model is invalid
+     * @param preparedModel Returned model that has been prepared for execution,
+     *     nullptr if the model was unable to be prepared.
+     */
+    Return<void> notify_1_3(V1_0::ErrorStatus status,
+                            const sp<V1_2::IPreparedModel>& preparedModel) override;
+
+    /**
+     * PreparedModelCallback::wait blocks until notify* has been called on the
+     * callback object.
+     */
+    void wait() const;
+
+    /**
+     * Retrieves the error status returned from the asynchronous task launched
+     * by IDevice::prepareModel*. If IDevice::prepareModel* has not finished
+     * asynchronously preparing the model, this call will block until the
+     * asynchronous task notifies the object.
+     *
+     * @return status Error status returned from asynchronously preparing the
+     *     model; will be:
+     *     - NONE if the asynchronous preparation was successful
+     *     - DEVICE_UNAVAILABLE if driver is offline or busy
+     *     - GENERAL_FAILURE if there is an unspecified error
+     *     - INVALID_ARGUMENT if the input model is invalid
+     */
+    V1_0::ErrorStatus getStatus() const;
+
+    /**
+     * Retrieves the model that has been prepared for execution from the
+     * asynchronous task launched by IDevice::prepareModel*. If
+     * IDevice::prepareModel* has not finished asynchronously preparing the
+     * model, this call will block until the asynchronous task notifies the
+     * object.
+     *
+     * @return preparedModel Returned model that has been prepared for
+     *     execution, nullptr if the model was unable to be prepared.
+     */
+    sp<V1_0::IPreparedModel> getPreparedModel() const;
+
+  private:
+    mutable std::mutex mMutex;
+    mutable std::condition_variable mCondition;
+    bool mNotified GUARDED_BY(mMutex) = false;
+    V1_0::ErrorStatus mErrorStatus = V1_0::ErrorStatus::GENERAL_FAILURE;
+    sp<V1_0::IPreparedModel> mPreparedModel;
+};
+
+}  // namespace android::hardware::neuralnetworks::V1_3::implementation
+
+#endif  // ANDROID_HARDWARE_NEURALNETWORKS_V1_3_CALLBACKS_H
diff --git a/vibrator/aidl/android/hardware/vibrator/IVibrator.aidl b/vibrator/aidl/android/hardware/vibrator/IVibrator.aidl
index ceaa0a0..8c4fd05 100644
--- a/vibrator/aidl/android/hardware/vibrator/IVibrator.aidl
+++ b/vibrator/aidl/android/hardware/vibrator/IVibrator.aidl
@@ -51,7 +51,8 @@
     /**
      * Turn off vibrator
      *
-     * Cancel a previously-started vibration, if any.
+     * Cancel a previously-started vibration, if any. If a previously-started vibration is
+     * associated with a callback, then onComplete should still be called on that callback.
      */
     void off();
 
@@ -62,6 +63,9 @@
      * was canceled (through off()). A callback is only expected to be supported when
      * getCapabilities CAP_ON_CALLBACK is specified.
      *
+     * Doing this operation while the vibrator is already on is undefined behavior. Clients should
+     * explicitly call off.
+     *
      * @param timeoutMs number of milliseconds to vibrate.
      * @param callback A callback used to inform Frameworks of state change, if supported.
      */
@@ -73,6 +77,9 @@
      * A callback is only expected to be supported when getCapabilities CAP_PERFORM_CALLBACK
      * is specified.
      *
+     * Doing this operation while the vibrator is already on is undefined behavior. Clients should
+     * explicitly call off.
+     *
      * @param effect The type of haptic event to trigger.
      * @param strength The intensity of haptic event to trigger.
      * @param callback A callback used to inform Frameworks of state change, if supported.
diff --git a/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp b/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
index aeb9b70..b6aa9e2 100644
--- a/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
+++ b/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
@@ -46,13 +46,13 @@
                                                       EffectStrength::STRONG};
 
 const std::vector<Effect> kInvalidEffects = {
-        static_cast<Effect>(static_cast<int32_t>(*kEffects.begin()) - 1),
-        static_cast<Effect>(static_cast<int32_t>(*kEffects.end()) + 1),
+        static_cast<Effect>(static_cast<int32_t>(kEffects.front()) - 1),
+        static_cast<Effect>(static_cast<int32_t>(kEffects.back()) + 1),
 };
 
 const std::vector<EffectStrength> kInvalidEffectStrengths = {
-        static_cast<EffectStrength>(static_cast<int8_t>(*kEffectStrengths.begin()) - 1),
-        static_cast<EffectStrength>(static_cast<int8_t>(*kEffectStrengths.end()) + 1),
+        static_cast<EffectStrength>(static_cast<int8_t>(kEffectStrengths.front()) - 1),
+        static_cast<EffectStrength>(static_cast<int8_t>(kEffectStrengths.back()) + 1),
 };
 
 class CompletionCallback : public BnVibratorCallback {
@@ -119,10 +119,13 @@
             Status status = vibrator->perform(effect, strength, nullptr /*callback*/, &lengthMs);
 
             if (isEffectSupported) {
-                EXPECT_TRUE(status.isOk());
+                EXPECT_TRUE(status.isOk())
+                        << static_cast<int>(effect) << " " << static_cast<int>(strength);
                 EXPECT_GT(lengthMs, 0);
+                usleep(lengthMs * 1000);
             } else {
-                EXPECT_EQ(status.exceptionCode(), Status::EX_UNSUPPORTED_OPERATION);
+                EXPECT_EQ(status.exceptionCode(), Status::EX_UNSUPPORTED_OPERATION)
+                        << static_cast<int>(effect) << " " << static_cast<int>(strength);
                 EXPECT_EQ(lengthMs, 0);
             }
         }
@@ -179,10 +182,19 @@
 
 TEST_P(VibratorAidl, InvalidEffectsUnsupported) {
     for (Effect effect : kInvalidEffects) {
+        for (EffectStrength strength : kEffectStrengths) {
+            int32_t lengthMs;
+            Status status = vibrator->perform(effect, strength, nullptr /*callback*/, &lengthMs);
+            EXPECT_EQ(status.exceptionCode(), Status::EX_UNSUPPORTED_OPERATION)
+                    << static_cast<int>(effect) << " " << static_cast<int>(strength);
+        }
+    }
+    for (Effect effect : kEffects) {
         for (EffectStrength strength : kInvalidEffectStrengths) {
             int32_t lengthMs;
             Status status = vibrator->perform(effect, strength, nullptr /*callback*/, &lengthMs);
-            EXPECT_EQ(status.exceptionCode(), Status::EX_UNSUPPORTED_OPERATION);
+            EXPECT_EQ(status.exceptionCode(), Status::EX_UNSUPPORTED_OPERATION)
+                    << static_cast<int>(effect) << " " << static_cast<int>(strength);
         }
     }
 }
@@ -247,7 +259,7 @@
     }
 }
 
-INSTANTIATE_TEST_SUITE_P(, VibratorAidl,
+INSTANTIATE_TEST_SUITE_P(Vibrator, VibratorAidl,
                          testing::ValuesIn(android::getAidlHalInstanceNames(IVibrator::descriptor)),
                          android::PrintInstanceNameToString);
 
diff --git a/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp b/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
index 97a371b..f89f7b4 100644
--- a/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
+++ b/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#include <android/log.h>
+
 #include <VtsHalHidlTargetTestBase.h>
 
 #include "wifi_hidl_call_util.h"
@@ -87,14 +89,21 @@
 }
 }  // namespace
 
-sp<IWifi> getWifi() {
-    sp<IWifi> wifi = ::testing::VtsHalHidlTargetTestBase::getService<IWifi>(
-        gEnv->getServiceName<IWifi>());
-    return wifi;
+sp<IWifi> getWifi(const std::string& instance_name) {
+    if ((!gEnv && instance_name.empty()) || (gEnv && !instance_name.empty())) {
+        ALOGE("instance_name and gEnv must have one and only one set.");
+        return nullptr;
+    }
+    if (gEnv) {
+        return ::testing::VtsHalHidlTargetTestBase::getService<IWifi>(
+            gEnv->getServiceName<IWifi>());
+    } else {
+        return IWifi::getService(instance_name);
+    }
 }
 
-sp<IWifiChip> getWifiChip() {
-    sp<IWifi> wifi = getWifi();
+sp<IWifiChip> getWifiChip(const std::string& instance_name) {
+    sp<IWifi> wifi = getWifi(instance_name);
     if (!wifi.get()) {
         return nullptr;
     }
@@ -122,8 +131,8 @@
     return status_and_chip.second;
 }
 
-sp<IWifiApIface> getWifiApIface() {
-    sp<IWifiChip> wifi_chip = getWifiChip();
+sp<IWifiApIface> getWifiApIface(const std::string& instance_name) {
+    sp<IWifiChip> wifi_chip = getWifiChip(instance_name);
     if (!wifi_chip.get()) {
         return nullptr;
     }
@@ -137,8 +146,8 @@
     return status_and_iface.second;
 }
 
-sp<IWifiNanIface> getWifiNanIface() {
-    sp<IWifiChip> wifi_chip = getWifiChip();
+sp<IWifiNanIface> getWifiNanIface(const std::string& instance_name) {
+    sp<IWifiChip> wifi_chip = getWifiChip(instance_name);
     if (!wifi_chip.get()) {
         return nullptr;
     }
@@ -152,8 +161,8 @@
     return status_and_iface.second;
 }
 
-sp<IWifiP2pIface> getWifiP2pIface() {
-    sp<IWifiChip> wifi_chip = getWifiChip();
+sp<IWifiP2pIface> getWifiP2pIface(const std::string& instance_name) {
+    sp<IWifiChip> wifi_chip = getWifiChip(instance_name);
     if (!wifi_chip.get()) {
         return nullptr;
     }
@@ -167,8 +176,8 @@
     return status_and_iface.second;
 }
 
-sp<IWifiStaIface> getWifiStaIface() {
-    sp<IWifiChip> wifi_chip = getWifiChip();
+sp<IWifiStaIface> getWifiStaIface(const std::string& instance_name) {
+    sp<IWifiChip> wifi_chip = getWifiChip(instance_name);
     if (!wifi_chip.get()) {
         return nullptr;
     }
@@ -182,8 +191,8 @@
     return status_and_iface.second;
 }
 
-sp<IWifiRttController> getWifiRttController() {
-    sp<IWifiChip> wifi_chip = getWifiChip();
+sp<IWifiRttController> getWifiRttController(const std::string& instance_name) {
+    sp<IWifiChip> wifi_chip = getWifiChip(instance_name);
     if (!wifi_chip.get()) {
         return nullptr;
     }
@@ -206,8 +215,8 @@
                                                    configured_mode_id);
 }
 
-void stopWifi() {
-    sp<IWifi> wifi = getWifi();
+void stopWifi(const std::string& instance_name) {
+    sp<IWifi> wifi = getWifi(instance_name);
     ASSERT_NE(wifi, nullptr);
     HIDL_INVOKE(wifi, stop);
 }
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 7dacaf1..bdee2ec 100644
--- a/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
+++ b/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
@@ -31,14 +31,21 @@
 // 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::V1_0::IWifi> getWifi();
-android::sp<android::hardware::wifi::V1_0::IWifiChip> getWifiChip();
-android::sp<android::hardware::wifi::V1_0::IWifiApIface> getWifiApIface();
-android::sp<android::hardware::wifi::V1_0::IWifiNanIface> getWifiNanIface();
-android::sp<android::hardware::wifi::V1_0::IWifiP2pIface> getWifiP2pIface();
-android::sp<android::hardware::wifi::V1_0::IWifiStaIface> getWifiStaIface();
+// TODO(b/143892896): Remove the default value as part of the cleanup.
+android::sp<android::hardware::wifi::V1_0::IWifi> getWifi(
+    const std::string& instance_name = "");
+android::sp<android::hardware::wifi::V1_0::IWifiChip> getWifiChip(
+    const std::string& instance_name = "");
+android::sp<android::hardware::wifi::V1_0::IWifiApIface> getWifiApIface(
+    const std::string& instance_name = "");
+android::sp<android::hardware::wifi::V1_0::IWifiNanIface> getWifiNanIface(
+    const std::string& instance_name = "");
+android::sp<android::hardware::wifi::V1_0::IWifiP2pIface> getWifiP2pIface(
+    const std::string& instance_name = "");
+android::sp<android::hardware::wifi::V1_0::IWifiStaIface> getWifiStaIface(
+    const std::string& instance_name = "");
 android::sp<android::hardware::wifi::V1_0::IWifiRttController>
-getWifiRttController();
+getWifiRttController(const std::string& instance_name = "");
 // Configure the chip in a mode to support the creation of the provided
 // iface type.
 bool configureChipToSupportIfaceType(
@@ -46,7 +53,7 @@
     android::hardware::wifi::V1_0::IfaceType type,
     android::hardware::wifi::V1_0::ChipModeId* configured_mode_id);
 // Used to trigger IWifi.stop() at the end of every test.
-void stopWifi();
+void stopWifi(const std::string& instance_name = "");
 
 class WifiHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
    protected:
diff --git a/wifi/hostapd/1.0/vts/functional/Android.bp b/wifi/hostapd/1.0/vts/functional/Android.bp
index 5645019..b53d002 100644
--- a/wifi/hostapd/1.0/vts/functional/Android.bp
+++ b/wifi/hostapd/1.0/vts/functional/Android.bp
@@ -49,5 +49,5 @@
         "libwifi-system",
         "libwifi-system-iface",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/wifi/hostapd/1.0/vts/functional/VtsHalWifiHostapdV1_0TargetTest.cpp b/wifi/hostapd/1.0/vts/functional/VtsHalWifiHostapdV1_0TargetTest.cpp
index 0303b20..4b62b15 100644
--- a/wifi/hostapd/1.0/vts/functional/VtsHalWifiHostapdV1_0TargetTest.cpp
+++ b/wifi/hostapd/1.0/vts/functional/VtsHalWifiHostapdV1_0TargetTest.cpp
@@ -14,36 +14,8 @@
  * limitations under the License.
  */
 
-#include <android-base/logging.h>
-#include <android/hardware/wifi/1.0/IWifi.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
-#include "hostapd_hidl_test_utils.h"
-
-class WifiHostapdHidlEnvironment_1_0 : public WifiHostapdHidlEnvironment {
-   public:
-    // get the test environment singleton
-    static WifiHostapdHidlEnvironment_1_0* Instance() {
-        static WifiHostapdHidlEnvironment_1_0* instance =
-            new WifiHostapdHidlEnvironment_1_0;
-        return instance;
-    }
-
-    virtual void registerTestServices() override {
-        registerTestService<::android::hardware::wifi::V1_0::IWifi>();
-        registerTestService<android::hardware::wifi::hostapd::V1_0::IHostapd>();
-    }
-
-   private:
-    WifiHostapdHidlEnvironment_1_0() {}
-};
-
-WifiHostapdHidlEnvironment* gEnv = WifiHostapdHidlEnvironment_1_0::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;
-}
+// TODO(b/143892896): Remove this file after wifi_hidl_test_utils.cpp is
+// updated.
+::testing::VtsHalHidlTargetTestEnvBase* gEnv = nullptr;
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 8ee71fb..5a978ca 100644
--- a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp
+++ b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test.cpp
@@ -17,18 +17,22 @@
 #include <android-base/logging.h>
 #include <cutils/properties.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-
+#include <android/hardware/wifi/1.0/IWifi.h>
 #include <android/hardware/wifi/hostapd/1.0/IHostapd.h>
 
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
+
 #include "hostapd_hidl_call_util.h"
 #include "hostapd_hidl_test_utils.h"
 
 using ::android::sp;
 using ::android::hardware::hidl_vec;
-using ::android::hardware::wifi::hostapd::V1_0::IHostapd;
 using ::android::hardware::wifi::hostapd::V1_0::HostapdStatus;
 using ::android::hardware::wifi::hostapd::V1_0::HostapdStatusCode;
+using ::android::hardware::wifi::hostapd::V1_0::IHostapd;
+using ::android::hardware::wifi::V1_0::IWifi;
 
 namespace {
 constexpr unsigned char kNwSsid[] = {'t', 'e', 's', 't', '1',
@@ -38,16 +42,20 @@
 constexpr int kIfaceInvalidChannel = 567;
 }  // namespace
 
-class HostapdHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class HostapdHidlTest
+    : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
    public:
     virtual void SetUp() override {
-        stopSupplicantIfNeeded();
-        startHostapdAndWaitForHidlService();
-        hostapd_ = getHostapd();
+        wifi_instance_name_ = std::get<0>(GetParam());
+        hostapd_instance_name_ = std::get<1>(GetParam());
+        stopSupplicantIfNeeded(wifi_instance_name_);
+        startHostapdAndWaitForHidlService(wifi_instance_name_,
+                                          hostapd_instance_name_);
+        hostapd_ = IHostapd::getService(hostapd_instance_name_);
         ASSERT_NE(hostapd_.get(), nullptr);
     }
 
-    virtual void TearDown() override { stopHostapd(); }
+    virtual void TearDown() override { stopHostapd(wifi_instance_name_); }
 
    protected:
     std::string getPrimaryWlanIfaceName() {
@@ -121,6 +129,8 @@
     }
     // IHostapd object used for all tests in this fixture.
     sp<IHostapd> hostapd_;
+    std::string wifi_instance_name_;
+    std::string hostapd_instance_name_;
 };
 
 /*
@@ -128,17 +138,19 @@
  * Ensures that an instance of the IHostapd proxy object is
  * successfully created.
  */
-TEST(HostapdHidlTestNoFixture, Create) {
-    startHostapdAndWaitForHidlService();
-    EXPECT_NE(nullptr, getHostapd().get());
-    stopHostapd();
+TEST_P(HostapdHidlTest, Create) {
+    stopHostapd(wifi_instance_name_);
+    startHostapdAndWaitForHidlService(wifi_instance_name_,
+                                      hostapd_instance_name_);
+    sp<IHostapd> hostapd = IHostapd::getService(hostapd_instance_name_);
+    EXPECT_NE(nullptr, hostapd.get());
 }
 
 /**
  * Adds an access point with PSK network config & ACS enabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithAcs) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithAcs) {
     if (!is_1_1(hostapd_)) {
         auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
                                   getIfaceParamsWithAcs(), getPskNwParams());
@@ -151,7 +163,7 @@
  * Adds an access point with Open network config & ACS enabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddOpenAccessPointWithAcs) {
+TEST_P(HostapdHidlTest, AddOpenAccessPointWithAcs) {
     if (!is_1_1(hostapd_)) {
         auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
                                   getIfaceParamsWithAcs(), getOpenNwParams());
@@ -164,7 +176,7 @@
  * Adds an access point with PSK network config & ACS disabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
     if (!is_1_1(hostapd_)) {
         auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
                                   getIfaceParamsWithoutAcs(), getPskNwParams());
@@ -176,7 +188,7 @@
  * Adds an access point with Open network config & ACS disabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
     if (!is_1_1(hostapd_)) {
         auto status =
             HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithoutAcs(),
@@ -189,7 +201,7 @@
  * Adds & then removes an access point with PSK network config & ACS enabled.
  * Access point creation & removal should pass.
  */
-TEST_F(HostapdHidlTest, RemoveAccessPointWithAcs) {
+TEST_P(HostapdHidlTest, RemoveAccessPointWithAcs) {
     if (!is_1_1(hostapd_)) {
         auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
                                   getIfaceParamsWithAcs(), getPskNwParams());
@@ -207,7 +219,7 @@
  * Adds & then removes an access point with PSK network config & ACS disabled.
  * Access point creation & removal should pass.
  */
-TEST_F(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
     if (!is_1_1(hostapd_)) {
         auto status = HIDL_INVOKE(hostapd_, addAccessPoint,
                                   getIfaceParamsWithoutAcs(), getPskNwParams());
@@ -222,7 +234,7 @@
  * Adds an access point with invalid channel.
  * Access point creation should fail.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
     if (!is_1_1(hostapd_)) {
         auto status =
             HIDL_INVOKE(hostapd_, addAccessPoint,
@@ -235,7 +247,7 @@
  * Adds an access point with invalid PSK network config.
  * Access point creation should fail.
  */
-TEST_F(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
     if (!is_1_1(hostapd_)) {
         auto status =
             HIDL_INVOKE(hostapd_, addAccessPoint, getIfaceParamsWithoutAcs(),
@@ -248,6 +260,13 @@
  * Terminate
  * This terminates the service.
  */
-TEST_F(HostapdHidlTest, Terminate) {
-    hostapd_->terminate();
-}
+TEST_P(HostapdHidlTest, Terminate) { hostapd_->terminate(); }
+
+INSTANTIATE_TEST_SUITE_P(
+    PerInstance, HostapdHidlTest,
+    testing::Combine(
+        testing::ValuesIn(
+            android::hardware::getAllHalInstanceNames(IWifi::descriptor)),
+        testing::ValuesIn(
+            android::hardware::getAllHalInstanceNames(IHostapd::descriptor))),
+    android::hardware::PrintInstanceTupleNameToString<>);
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 cdbf1ab..6058fd2 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
@@ -44,13 +44,11 @@
 using ::android::wifi_system::HostapdManager;
 using ::android::wifi_system::SupplicantManager;
 
-extern WifiHostapdHidlEnvironment* gEnv;
-
 namespace {
 // Helper function to initialize the driver and firmware to AP mode
 // using the vendor HAL HIDL interface.
-void initilializeDriverAndFirmware() {
-    sp<IWifiChip> wifi_chip = getWifiChip();
+void initilializeDriverAndFirmware(const std::string& wifi_instance_name) {
+    sp<IWifiChip> wifi_chip = getWifiChip(wifi_instance_name);
     ChipModeId mode_id;
     EXPECT_TRUE(configureChipToSupportIfaceType(
         wifi_chip, ::android::hardware::wifi::V1_0::IfaceType::AP, &mode_id));
@@ -58,7 +56,9 @@
 
 // Helper function to deinitialize the driver and firmware
 // using the vendor HAL HIDL interface.
-void deInitilializeDriverAndFirmware() { stopWifi(); }
+void deInitilializeDriverAndFirmware(const std::string& wifi_instance_name) {
+    stopWifi(wifi_instance_name);
+}
 }  // namespace
 
 // Utility class to wait for wpa_hostapd's HIDL service registration.
@@ -110,45 +110,42 @@
     std::condition_variable condition_;
 };
 
-void stopSupplicantIfNeeded() {
+void stopSupplicantIfNeeded(const std::string& instance_name) {
     SupplicantManager supplicant_manager;
     if (supplicant_manager.IsSupplicantRunning()) {
         LOG(INFO) << "Supplicant is running, stop supplicant first.";
         ASSERT_TRUE(supplicant_manager.StopSupplicant());
-        deInitilializeDriverAndFirmware();
+        deInitilializeDriverAndFirmware(instance_name);
         ASSERT_FALSE(supplicant_manager.IsSupplicantRunning());
     }
 }
 
-void stopHostapd() {
+void stopHostapd(const std::string& instance_name) {
     HostapdManager hostapd_manager;
 
     ASSERT_TRUE(hostapd_manager.StopHostapd());
-    deInitilializeDriverAndFirmware();
+    deInitilializeDriverAndFirmware(instance_name);
 }
 
-void startHostapdAndWaitForHidlService() {
-    initilializeDriverAndFirmware();
+void startHostapdAndWaitForHidlService(
+    const std::string& wifi_instance_name,
+    const std::string& hostapd_instance_name) {
+    initilializeDriverAndFirmware(wifi_instance_name);
 
     android::sp<ServiceNotificationListener> notification_listener =
         new ServiceNotificationListener();
-    string service_name = gEnv->getServiceName<IHostapd>();
     ASSERT_TRUE(notification_listener->registerForHidlServiceNotifications(
-        service_name));
+        hostapd_instance_name));
 
     HostapdManager hostapd_manager;
     ASSERT_TRUE(hostapd_manager.StartHostapd());
 
-    ASSERT_TRUE(notification_listener->waitForHidlService(500, service_name));
+    ASSERT_TRUE(
+        notification_listener->waitForHidlService(500, hostapd_instance_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>());
-}
+}
\ No newline at end of file
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 9b3df42..5cb4f01 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
@@ -20,32 +20,18 @@
 #include <android/hardware/wifi/hostapd/1.0/IHostapd.h>
 #include <android/hardware/wifi/hostapd/1.1/IHostapd.h>
 
-#include <VtsHalHidlTargetTestEnvBase.h>
-
 // Used to stop the android wifi framework before every test.
-void stopWifiFramework();
-void startWifiFramework();
-void stopSupplicantIfNeeded();
-void stopHostapd();
+void stopWifiFramework(const std::string& instance_name);
+void startWifiFramework(const std::string& instance_name);
+void stopSupplicantIfNeeded(const std::string& instance_name);
+void stopHostapd(const std::string& instance_name);
 // Used to configure the chip, driver and start wpa_hostapd before every
 // test.
-void startHostapdAndWaitForHidlService();
+void startHostapdAndWaitForHidlService(
+    const std::string& wifi_instance_name,
+    const std::string& hostapd_instance_name);
 
-// 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_0::IHostapd> getHostapd();
 bool is_1_1(const android::sp<android::hardware::wifi::hostapd::V1_0::IHostapd>&
                 hostapd);
 
-class WifiHostapdHidlEnvironment
-    : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    virtual void HidlSetUp() override { stopHostapd(); }
-    virtual void HidlTearDown() override {
-        startHostapdAndWaitForHidlService();
-    }
-};
-
 #endif /* HOSTAPD_HIDL_TEST_UTILS_H */
diff --git a/wifi/hostapd/1.1/vts/functional/Android.bp b/wifi/hostapd/1.1/vts/functional/Android.bp
index 02ec2e6..c963fe3 100644
--- a/wifi/hostapd/1.1/vts/functional/Android.bp
+++ b/wifi/hostapd/1.1/vts/functional/Android.bp
@@ -14,25 +14,6 @@
 // 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",
-        "libgmock",
-        "libwifi-system",
-        "libwifi-system-iface",
-    ],
-}
-
 cc_test {
     name: "VtsHalWifiHostapdV1_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
@@ -43,7 +24,6 @@
     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",
@@ -51,6 +31,6 @@
         "libwifi-system",
         "libwifi-system-iface",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
 
diff --git a/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp b/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp
index 6916db2..7e0f3cd 100644
--- a/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp
+++ b/wifi/hostapd/1.1/vts/functional/VtsHalWifiHostapdV1_1TargetTest.cpp
@@ -14,38 +14,8 @@
  * limitations under the License.
  */
 
-#include <android-base/logging.h>
-#include <android/hardware/wifi/1.0/IWifi.h>
+#include <VtsHalHidlTargetTestEnvBase.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;
-}
+// TODO(b/143892896): Remove this file after wifi_hidl_test_utils.cpp is
+// updated.
+::testing::VtsHalHidlTargetTestEnvBase* gEnv = nullptr;
\ No newline at end of file
diff --git a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
index b053549..1804d8c 100644
--- a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
+++ b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
@@ -17,13 +17,15 @@
 #include <android-base/logging.h>
 #include <cutils/properties.h>
 
-#include <VtsHalHidlTargetTestBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
+#include <android/hardware/wifi/1.0/IWifi.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;
@@ -33,6 +35,7 @@
 using ::android::hardware::wifi::hostapd::V1_0::HostapdStatusCode;
 using ::android::hardware::wifi::hostapd::V1_1::IHostapd;
 using ::android::hardware::wifi::hostapd::V1_1::IHostapdCallback;
+using ::android::hardware::wifi::V1_0::IWifi;
 
 namespace {
 constexpr unsigned char kNwSsid[] = {'t', 'e', 's', 't', '1',
@@ -42,16 +45,20 @@
 constexpr int kIfaceInvalidChannel = 567;
 }  // namespace
 
-class HostapdHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class HostapdHidlTest
+    : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
    public:
     virtual void SetUp() override {
-        stopSupplicantIfNeeded();
-        startHostapdAndWaitForHidlService();
-        hostapd_ = getHostapd_1_1();
+        wifi_instance_name_ = std::get<0>(GetParam());
+        hostapd_instance_name_ = std::get<1>(GetParam());
+        stopSupplicantIfNeeded(wifi_instance_name_);
+        startHostapdAndWaitForHidlService(wifi_instance_name_,
+                                          hostapd_instance_name_);
+        hostapd_ = IHostapd::getService(hostapd_instance_name_);
         ASSERT_NE(hostapd_.get(), nullptr);
     }
 
-    virtual void TearDown() override { stopHostapd(); }
+    virtual void TearDown() override { stopHostapd(wifi_instance_name_); }
 
    protected:
     std::string getPrimaryWlanIfaceName() {
@@ -152,6 +159,8 @@
 
     // IHostapd object used for all tests in this fixture.
     sp<IHostapd> hostapd_;
+    std::string wifi_instance_name_;
+    std::string hostapd_instance_name_;
 };
 
 class IfaceCallback : public IHostapdCallback {
@@ -164,7 +173,7 @@
 /*
  * RegisterCallback
  */
-TEST_F(HostapdHidlTest, registerCallback) {
+TEST_P(HostapdHidlTest, registerCallback) {
     hostapd_->registerCallback(
         new IfaceCallback(), [](const HostapdStatus& status) {
             EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
@@ -175,7 +184,7 @@
  * Adds an access point with PSK network config & ACS enabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithAcs) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithAcs) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithAcs(), getPskNwParams());
     // TODO: b/140172237, fix this in R.
@@ -186,7 +195,7 @@
  * Adds an access point with PSK network config, ACS enabled & channel Range.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithAcsAndChannelRange) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithAcsAndChannelRange) {
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                     getIfaceParamsWithAcsAndChannelRange(), getPskNwParams());
@@ -198,7 +207,7 @@
  * Adds an access point with invalid channel range.
  * Access point creation should fail.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithAcsAndInvalidChannelRange) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithAcsAndInvalidChannelRange) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithAcsAndInvalidChannelRange(),
                               getPskNwParams());
@@ -210,7 +219,7 @@
  * Adds an access point with Open network config & ACS enabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddOpenAccessPointWithAcs) {
+TEST_P(HostapdHidlTest, AddOpenAccessPointWithAcs) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithAcs(), getOpenNwParams());
     // TODO: b/140172237, fix this in R
@@ -221,7 +230,7 @@
  * Adds an access point with PSK network config & ACS disabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithoutAcs(), getPskNwParams());
     EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
@@ -231,7 +240,7 @@
  * Adds an access point with Open network config & ACS disabled.
  * Access point creation should pass.
  */
-TEST_F(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithoutAcs(), getOpenNwParams());
     EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
@@ -241,7 +250,7 @@
  * Adds & then removes an access point with PSK network config & ACS enabled.
  * Access point creation & removal should pass.
  */
-TEST_F(HostapdHidlTest, RemoveAccessPointWithAcs) {
+TEST_P(HostapdHidlTest, RemoveAccessPointWithAcs) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithAcs(), getPskNwParams());
     // TODO: b/140172237, fix this in R
@@ -257,7 +266,7 @@
  * Adds & then removes an access point with PSK network config & ACS disabled.
  * Access point creation & removal should pass.
  */
-TEST_F(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                               getIfaceParamsWithoutAcs(), getPskNwParams());
     EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
@@ -270,7 +279,7 @@
  * Adds an access point with invalid channel.
  * Access point creation should fail.
  */
-TEST_F(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
+TEST_P(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_1,
                     getIfaceParamsWithInvalidChannel(), getPskNwParams());
@@ -281,9 +290,18 @@
  * Adds an access point with invalid PSK network config.
  * Access point creation should fail.
  */
-TEST_F(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
+TEST_P(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_1, getIfaceParamsWithoutAcs(),
                     getInvalidPskNwParams());
     EXPECT_NE(HostapdStatusCode::SUCCESS, status.code);
 }
+
+INSTANTIATE_TEST_CASE_P(
+    PerInstance, HostapdHidlTest,
+    testing::Combine(
+        testing::ValuesIn(
+            android::hardware::getAllHalInstanceNames(IWifi::descriptor)),
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(
+            android::hardware::wifi::hostapd::V1_1::IHostapd::descriptor))),
+    android::hardware::PrintInstanceTupleNameToString<>);
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
deleted file mode 100644
index 8bb72a1..0000000
--- a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * 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
deleted file mode 100644
index c43ddfa..0000000
--- a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test_utils_1_1.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * 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/1.3/ISupplicantStaIface.hal b/wifi/supplicant/1.3/ISupplicantStaIface.hal
index cb207d8..bfd8946 100644
--- a/wifi/supplicant/1.3/ISupplicantStaIface.hal
+++ b/wifi/supplicant/1.3/ISupplicantStaIface.hal
@@ -54,4 +54,26 @@
      */
     getConnectionCapabilities()
         generates (SupplicantStatus status, ConnectionCapabilities capabilities);
+
+    /**
+     * Get wpa driver capabilities.
+     *
+     * @return status Status of the operation, and a bitmap of wpa driver features.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     */
+    getWpaDriverCapabilities() generates (SupplicantStatus status,
+        bitfield<WpaDriverCapabilitiesMask> driverCapabilitiesMask);
+
+    /**
+     * Set MBO cellular data status.
+     *
+     * @param available true means cellular data available, false otherwise.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|
+     */
+    setMboCellularDataStatus(bool available) generates (SupplicantStatus status);
 };
diff --git a/wifi/supplicant/1.3/types.hal b/wifi/supplicant/1.3/types.hal
index 7874399..4e01ab1 100644
--- a/wifi/supplicant/1.3/types.hal
+++ b/wifi/supplicant/1.3/types.hal
@@ -58,3 +58,17 @@
      */
     WifiTechnology technology;
 };
+
+/**
+ * WPA Driver capability.
+ */
+enum WpaDriverCapabilitiesMask : uint32_t {
+    /**
+     * Multi Band Operation.
+     */
+    MBO = 1 << 0,
+    /**
+     * Optimized Connectivity Experience.
+     */
+    OCE = 1 << 1,
+};
diff --git a/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 62f3228..2cf5881 100644
--- a/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -41,6 +41,7 @@
 using ::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface;
 using ::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIfaceCallback;
 using ::android::hardware::wifi::supplicant::V1_3::ISupplicantStaNetwork;
+using ::android::hardware::wifi::supplicant::V1_3::WpaDriverCapabilitiesMask;
 
 class SupplicantStaIfaceHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
@@ -191,3 +192,38 @@
             EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
         });
 }
+
+/*
+ * GetWpaDriverCapabilities
+ */
+TEST_F(SupplicantStaIfaceHidlTest, GetWpaDriverCapabilities) {
+    sta_iface_->getWpaDriverCapabilities(
+        [&](const SupplicantStatus& status, uint32_t) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+        });
+}
+
+/*
+ * SetMboCellularDataStatus
+ */
+TEST_F(SupplicantStaIfaceHidlTest, SetMboCellularDataStatus) {
+    uint32_t driverCapMask = 0;
+
+    // Get MBO support from the device.
+    sta_iface_->getWpaDriverCapabilities(
+        [&](const SupplicantStatus& status, uint32_t driverCapMaskInternal) {
+            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
+
+            driverCapMask = driverCapMaskInternal;
+        });
+
+    SupplicantStatusCode expectedStatusCode =
+        (driverCapMask & WpaDriverCapabilitiesMask::MBO)
+            ? SupplicantStatusCode::SUCCESS
+            : SupplicantStatusCode::FAILURE_UNKNOWN;
+
+    sta_iface_->setMboCellularDataStatus(
+        true, [expectedStatusCode](const SupplicantStatus& status) {
+            EXPECT_EQ(expectedStatusCode, status.code);
+        });
+}