diff --git a/audio/7.1/Android.bp b/audio/7.1/Android.bp
new file mode 100644
index 0000000..cede72a
--- /dev/null
+++ b/audio/7.1/Android.bp
@@ -0,0 +1,31 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+hidl_interface {
+    name: "android.hardware.audio@7.1",
+    root: "android.hardware",
+    srcs: [
+        "types.hal",
+        "IDevice.hal",
+        "IDevicesFactory.hal",
+        "IPrimaryDevice.hal",
+        "IStreamOut.hal",
+        "IStreamOutLatencyModeCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio.common@7.0",
+        "android.hidl.base@1.0",
+        "android.hidl.safe_union@1.0",
+    ],
+    gen_java: false,
+    gen_java_constants: false,
+}
diff --git a/audio/7.1/IDevice.hal b/audio/7.1/IDevice.hal
new file mode 100644
index 0000000..c158e7e
--- /dev/null
+++ b/audio/7.1/IDevice.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.audio@7.1;
+
+import android.hardware.audio.common@7.0;
+import @7.0::AudioInOutFlag;
+import @7.0::IDevice;
+import @7.0::Result;
+import IStreamOut;
+
+interface IDevice extends @7.0::IDevice {
+    /**
+     * This method creates and opens the audio hardware output stream.
+     * If the stream can not be opened with the proposed audio config,
+     * HAL must provide suggested values for the audio config.
+     *
+     * Note: INVALID_ARGUMENTS is returned both in the case when the
+     * HAL can not use the provided config and in the case when
+     * the value of any argument is invalid. In the latter case the
+     * HAL must provide a default initialized suggested config.
+     *
+     * @param ioHandle handle assigned by AudioFlinger.
+     * @param device device type and (if needed) address.
+     * @param config stream configuration.
+     * @param flags additional flags.
+     * @param sourceMetadata Description of the audio that will be played.
+                             May be used by implementations to configure hardware effects.
+     * @return retval operation completion status.
+     * @return outStream created output stream.
+     * @return suggestedConfig in the case of rejection of the proposed config,
+     *                         a config suggested by the HAL.
+     */
+    openOutputStream_7_1(
+            AudioIoHandle ioHandle,
+            DeviceAddress device,
+            AudioConfig config,
+            vec<AudioInOutFlag> flags,
+            SourceMetadata sourceMetadata) generates (
+                    Result retval,
+                    IStreamOut outStream,
+                    AudioConfig suggestedConfig);
+
+    /**
+     * Notifies the device module about the connection state of an input/output
+     * device attached to it. The devicePort identifies the device and may also
+     * provide extra information such as raw audio descriptors.
+     *
+     * @param devicePort audio device port.
+     * @param connected whether the device is connected.
+     * @return retval operation completion status.
+     */
+    setConnectedState_7_1(AudioPort devicePort, bool connected)
+            generates (Result retval);
+};
diff --git a/audio/7.1/IDevicesFactory.hal b/audio/7.1/IDevicesFactory.hal
new file mode 100644
index 0000000..7669614
--- /dev/null
+++ b/audio/7.1/IDevicesFactory.hal
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.audio@7.1;
+
+import @7.0::IDevicesFactory;
+import @7.0::Result;
+import IDevice;
+import IPrimaryDevice;
+
+/**
+ * This factory allows a HAL implementation to be split in multiple independent
+ * devices (called module in the pre-treble API). Note that this division is
+ * arbitrary and implementation are free to only have a Primary. The framework
+ * will query the devices according to audio_policy_configuration.xml
+ *
+ * Each device name is arbitrary, provided by the vendor's audio_policy_configuration.xml
+ * and only used to identify a device in this factory.
+ * The framework must not interpret the name, treating it as a vendor opaque data
+ * with the following exception:
+ * - the "r_submix" device that must be present to support policyMixes (Eg: Android projected).
+ *   Note that this Device is included by default in a build derived from AOSP.
+ */
+interface IDevicesFactory extends @7.0::IDevicesFactory {
+
+    /**
+     * Opens an audio device. To close the device, it is necessary to call
+     * 'close' method on the returned device object.
+     *
+     * Important note: due to rules of HIDL, @7.1::IPrimaryDevice extends
+     * @7.0::IPrimaryDevice, rather than @7.1::IDevice. Thus the returned
+     * IDevice interface can not be up-casted to @7.1::IPrimaryDevice for the
+     * primary device. The client needs to use IPrimaryDevice instead of this
+     * method if it needs full functionality of the IPrimaryDevice interface.
+     *
+     * @param device device name.
+     * @return retval operation completion status. Returns INVALID_ARGUMENTS
+     *         if there is no corresponding hardware module found,
+     *         NOT_INITIALIZED if an error occurred while opening the hardware
+     *         module.
+     * @return result the interface for the created device.
+     */
+    openDevice_7_1(string device) generates (Result retval, IDevice result);
+
+    /**
+     * Opens the Primary audio device that must be present.
+     * This function is not optional and must return successfully the primary device.
+     *
+     * This device must have the name "primary".
+     *
+     * The telephony stack uses this device to control the audio during a voice call.
+     *
+     * @return retval operation completion status. Must be SUCCESS.
+     *         For debugging, return INVALID_ARGUMENTS if there is no corresponding
+     *         hardware module found, NOT_INITIALIZED if an error occurred
+     *         while opening the hardware module.
+     * @return result the interface for the created device.
+     */
+    openPrimaryDevice_7_1() generates (Result retval, IPrimaryDevice result);
+};
diff --git a/audio/7.1/IPrimaryDevice.hal b/audio/7.1/IPrimaryDevice.hal
new file mode 100644
index 0000000..1659671
--- /dev/null
+++ b/audio/7.1/IPrimaryDevice.hal
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.audio@7.1;
+
+import android.hardware.audio.common@7.0;
+import @7.0::IPrimaryDevice;
+import IDevice;
+
+interface IPrimaryDevice extends @7.0::IPrimaryDevice {
+    /**
+     * Retrieve the generic @7.1::IDevice interface.
+     *
+     * Since @7.1::IPrimaryDevice extends @7.0::IPrimaryDevice, the interface
+     * reference can not be downcasted to @7.1::IDevice using standard methods.
+     * For this reason a dedicated interface method is provided.
+     *
+     * @return result the generic part of the interface.
+     */
+    getDevice() generates (IDevice result);
+};
diff --git a/audio/7.1/IStreamOut.hal b/audio/7.1/IStreamOut.hal
new file mode 100644
index 0000000..b2013cf
--- /dev/null
+++ b/audio/7.1/IStreamOut.hal
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.audio@7.1;
+
+import @7.0::Result;
+import @7.0::IStreamOut;
+
+import IStreamOutLatencyModeCallback;
+
+interface IStreamOut extends @7.0::IStreamOut {
+    /**
+     * Indicates the requested latency mode for this output stream.
+     *
+     * The requested mode can be one of the modes returned by
+     * getRecommendedLatencyModes() API.
+     *
+     * Optional method.
+     * Mandated only on specific spatial audio streams indicated by
+     * AUDIO_OUTPUT_FLAG_SPATIALIZER flag if they can be routed to a BT classic sink.
+     *
+     * @return retval operation completion status.
+     */
+    setLatencyMode(LatencyMode mode) generates (Result retval);
+
+    /**
+     * Indicates which latency modes are currently supported on this output stream.
+     * If the transport protocol (e.g Bluetooth A2DP) used by this output stream to reach
+     * the output device supports variable latency modes, the HAL indicates which
+     * modes are currently supported.
+     * The framework can then call setLatencyMode() with one of the supported modes to select
+     * the desired operation mode.
+     *
+     * Optional method.
+     * Mandated only on specific spatial audio streams indicated by
+     * AUDIO_OUTPUT_FLAG_SPATIALIZER flag if they can be routed to a BT classic sink.
+     *
+     * @return retval operation completion status.
+     * @return modes currrently supported latency modes.
+     */
+    getRecommendedLatencyModes() generates (Result retval, vec<LatencyMode> modes);
+
+    /**
+     * Set the callback interface for notifying changes in supported latency modes.
+     *
+     * Calling this method with a null pointer will result in releasing
+     * the callback.
+     *
+     * Optional method.
+     * Mandated only on specific spatial audio streams indicated by
+     * AUDIO_OUTPUT_FLAG_SPATIALIZER flag if they can be routed to a BT classic sink.
+     *
+     * @return retval operation completion status.
+     */
+    setLatencyModeCallback(IStreamOutLatencyModeCallback callback) generates (Result retval);
+};
diff --git a/audio/7.1/IStreamOutLatencyModeCallback.hal b/audio/7.1/IStreamOutLatencyModeCallback.hal
new file mode 100644
index 0000000..45b453f
--- /dev/null
+++ b/audio/7.1/IStreamOutLatencyModeCallback.hal
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.audio@7.1;
+
+/**
+ * Callback interface for output stream variable latency mode feature.
+ */
+interface IStreamOutLatencyModeCallback {
+    /**
+     * Called with the new list of supported latency modes when a change occurs.
+     */
+    oneway onRecommendedLatencyModeChanged(vec<LatencyMode> modes);
+};
diff --git a/audio/7.1/config/Android.bp b/audio/7.1/config/Android.bp
new file mode 100644
index 0000000..70c8fd4
--- /dev/null
+++ b/audio/7.1/config/Android.bp
@@ -0,0 +1,31 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+xsd_config {
+    name: "audio_policy_configuration_V7_1",
+    srcs: ["audio_policy_configuration.xsd"],
+    package_name: "android.audio.policy.configuration.V7_1",
+    nullability: true,
+}
+
+xsd_config {
+    name: "audio_policy_configuration_V7_1_enums",
+    srcs: ["audio_policy_configuration.xsd"],
+    package_name: "android.audio.policy.configuration.V7_1",
+    nullability: true,
+    enums_only: true,
+}
+
+xsd_config {
+    name: "audio_policy_configuration_V7_1_parser",
+    srcs: ["audio_policy_configuration.xsd"],
+    package_name: "android.audio.policy.configuration.V7_1",
+    nullability: true,
+    parser_only: true,
+}
diff --git a/audio/7.1/config/api/current.txt b/audio/7.1/config/api/current.txt
new file mode 100644
index 0000000..75fc5c0
--- /dev/null
+++ b/audio/7.1/config/api/current.txt
@@ -0,0 +1,603 @@
+// Signature format: 2.0
+package android.audio.policy.configuration.V7_1 {
+
+  public class AttachedDevices {
+    ctor public AttachedDevices();
+    method @Nullable public java.util.List<java.lang.String> getItem();
+  }
+
+  public enum AudioChannelMask {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_10;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_11;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_12;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_13;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_14;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_15;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_16;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_17;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_18;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_19;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_20;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_21;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_22;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_23;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_24;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_5;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_6;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_7;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_8;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_9;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_2POINT0POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_2POINT1POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_3POINT0POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_3POINT1POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_5POINT1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_6;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_FRONT_BACK;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_MONO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_STEREO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_CALL_MONO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_NONE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_13POINT_360RA;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_22POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT0POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT0POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT1POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1POINT4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1_BACK;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1_SIDE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_6POINT1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1POINT2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1POINT4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_9POINT1POINT4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_9POINT1POINT6;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_HAPTIC_AB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_MONO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_MONO_HAPTIC_A;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_PENTA;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD_BACK;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD_SIDE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_SURROUND;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_TRI;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioChannelMask AUDIO_CHANNEL_OUT_TRI_BACK;
+  }
+
+  public enum AudioContentType {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioContentType AUDIO_CONTENT_TYPE_MOVIE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioContentType AUDIO_CONTENT_TYPE_MUSIC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioContentType AUDIO_CONTENT_TYPE_SONIFICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioContentType AUDIO_CONTENT_TYPE_SPEECH;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioContentType AUDIO_CONTENT_TYPE_ULTRASOUND;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioContentType AUDIO_CONTENT_TYPE_UNKNOWN;
+  }
+
+  public enum AudioDevice {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_AMBIENT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_AUX_DIGITAL;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BACK_MIC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BLE_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_BLE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BUILTIN_MIC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_BUS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_COMMUNICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_DEFAULT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_ECHO_REFERENCE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_FM_TUNER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_HDMI;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_HDMI_ARC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_HDMI_EARC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_IP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_LINE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_LOOPBACK;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_PROXY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_REMOTE_SUBMIX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_SPDIF;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_STUB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_TELEPHONY_RX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_TV_TUNER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_USB_ACCESSORY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_USB_DEVICE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_USB_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_VOICE_CALL;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_IN_WIRED_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_NONE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_AUX_DIGITAL;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_AUX_LINE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLE_BROADCAST;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLE_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLE_SPEAKER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_BUS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_DEFAULT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_EARPIECE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_ECHO_CANCELLER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_FM;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_HDMI;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_HDMI_ARC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_HDMI_EARC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_HEARING_AID;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_IP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_LINE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_PROXY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_SPDIF;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_SPEAKER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_SPEAKER_SAFE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_STUB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_TELEPHONY_TX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_USB_ACCESSORY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_USB_DEVICE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_USB_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioDevice AUDIO_DEVICE_OUT_WIRED_HEADSET;
+  }
+
+  public enum AudioEncapsulationType {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioEncapsulationType AUDIO_ENCAPSULATION_TYPE_IEC61937;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioEncapsulationType AUDIO_ENCAPSULATION_TYPE_NONE;
+  }
+
+  public enum AudioFormat {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADIF;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_ELD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_ERLC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_HE_V1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_HE_V2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_LC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_LD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_LTP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_MAIN;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_SCALABLE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_SSR;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ADTS_XHE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ELD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_ERLC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_HE_V1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_HE_V2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LATM;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LATM_HE_V1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LATM_HE_V2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LATM_LC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_LTP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_MAIN;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_SCALABLE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_SSR;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AAC_XHE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AC3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AC4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_ALAC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AMR_NB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AMR_WB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_AMR_WB_PLUS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_APE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_APTX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_APTX_ADAPTIVE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_APTX_HD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_APTX_TWSP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_CELT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DEFAULT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DOLBY_TRUEHD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DRA;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DSD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DTS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DTS_HD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_DTS_UHD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_EVRC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_EVRCB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_EVRCNW;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_EVRCWB;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_E_AC3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_E_AC3_JOC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_FLAC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_HE_AAC_V1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_HE_AAC_V2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_IEC60958;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_IEC61937;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_LC3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_LDAC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_LHDC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_LHDC_LL;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MAT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MAT_1_0;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MAT_2_0;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MAT_2_1;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MP2;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MP3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MPEGH_BL_L3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MPEGH_BL_L4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MPEGH_LC_L3;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_MPEGH_LC_L4;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_OPUS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_PCM_16_BIT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_PCM_24_BIT_PACKED;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_PCM_32_BIT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_PCM_8_24_BIT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_PCM_8_BIT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_PCM_FLOAT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_QCELP;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_SBC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_VORBIS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_WMA;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioFormat AUDIO_FORMAT_WMA_PRO;
+  }
+
+  public enum AudioGainMode {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioGainMode AUDIO_GAIN_MODE_CHANNELS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioGainMode AUDIO_GAIN_MODE_JOINT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioGainMode AUDIO_GAIN_MODE_RAMP;
+  }
+
+  public enum AudioInOutFlag {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_DIRECT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_FAST;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_HW_AV_SYNC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_HW_HOTWORD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_MMAP_NOIRQ;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_RAW;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_SYNC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_ULTRASOUND;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_INPUT_FLAG_VOIP_TX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_DIRECT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_DIRECT_PCM;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_FAST;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_GAPLESS_OFFLOAD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_HW_AV_SYNC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_INCALL_MUSIC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_MMAP_NOIRQ;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_NON_BLOCKING;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_PRIMARY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_RAW;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_SPATIALIZER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_SYNC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_TTS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_ULTRASOUND;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioInOutFlag AUDIO_OUTPUT_FLAG_VOIP_RX;
+  }
+
+  public class AudioPolicyConfiguration {
+    ctor public AudioPolicyConfiguration();
+    method @Nullable public android.audio.policy.configuration.V7_1.GlobalConfiguration getGlobalConfiguration();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Modules> getModules();
+    method @Nullable public android.audio.policy.configuration.V7_1.SurroundSound getSurroundSound();
+    method @Nullable public android.audio.policy.configuration.V7_1.Version getVersion();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Volumes> getVolumes();
+    method public void setGlobalConfiguration(@Nullable android.audio.policy.configuration.V7_1.GlobalConfiguration);
+    method public void setSurroundSound(@Nullable android.audio.policy.configuration.V7_1.SurroundSound);
+    method public void setVersion(@Nullable android.audio.policy.configuration.V7_1.Version);
+  }
+
+  public enum AudioSource {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_CAMCORDER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_DEFAULT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_ECHO_REFERENCE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_FM_TUNER;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_HOTWORD;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_MIC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_REMOTE_SUBMIX;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_ULTRASOUND;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_UNPROCESSED;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_VOICE_CALL;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_VOICE_COMMUNICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_VOICE_DOWNLINK;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_VOICE_PERFORMANCE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_VOICE_RECOGNITION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioSource AUDIO_SOURCE_VOICE_UPLINK;
+  }
+
+  public enum AudioStreamType {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_ACCESSIBILITY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_ALARM;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_ASSISTANT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_BLUETOOTH_SCO;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_CALL_ASSISTANT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_DTMF;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_ENFORCED_AUDIBLE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_MUSIC;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_NOTIFICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_PATCH;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_REROUTING;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_RING;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_SYSTEM;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_TTS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioStreamType AUDIO_STREAM_VOICE_CALL;
+  }
+
+  public enum AudioUsage {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_ALARM;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_ANNOUNCEMENT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_ASSISTANCE_SONIFICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_ASSISTANT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_CALL_ASSISTANT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_EMERGENCY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_GAME;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_MEDIA;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_NOTIFICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_NOTIFICATION_EVENT;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_SAFETY;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_UNKNOWN;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_VEHICLE_STATUS;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_VIRTUAL_SOURCE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_VOICE_COMMUNICATION;
+    enum_constant public static final android.audio.policy.configuration.V7_1.AudioUsage AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
+  }
+
+  public enum DeviceCategory {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.DeviceCategory DEVICE_CATEGORY_EARPIECE;
+    enum_constant public static final android.audio.policy.configuration.V7_1.DeviceCategory DEVICE_CATEGORY_EXT_MEDIA;
+    enum_constant public static final android.audio.policy.configuration.V7_1.DeviceCategory DEVICE_CATEGORY_HEADSET;
+    enum_constant public static final android.audio.policy.configuration.V7_1.DeviceCategory DEVICE_CATEGORY_HEARING_AID;
+    enum_constant public static final android.audio.policy.configuration.V7_1.DeviceCategory DEVICE_CATEGORY_SPEAKER;
+  }
+
+  public class DevicePorts {
+    ctor public DevicePorts();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.DevicePorts.DevicePort> getDevicePort();
+  }
+
+  public static class DevicePorts.DevicePort {
+    ctor public DevicePorts.DevicePort();
+    method @Nullable public String getAddress();
+    method @Nullable public java.util.List<java.lang.String> getEncodedFormats();
+    method @Nullable public android.audio.policy.configuration.V7_1.Gains getGains();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Profile> getProfile();
+    method @Nullable public android.audio.policy.configuration.V7_1.Role getRole();
+    method @Nullable public String getTagName();
+    method @Nullable public String getType();
+    method @Nullable public boolean get_default();
+    method public void setAddress(@Nullable String);
+    method public void setEncodedFormats(@Nullable java.util.List<java.lang.String>);
+    method public void setGains(@Nullable android.audio.policy.configuration.V7_1.Gains);
+    method public void setRole(@Nullable android.audio.policy.configuration.V7_1.Role);
+    method public void setTagName(@Nullable String);
+    method public void setType(@Nullable String);
+    method public void set_default(@Nullable boolean);
+  }
+
+  public enum EngineSuffix {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.EngineSuffix _default;
+    enum_constant public static final android.audio.policy.configuration.V7_1.EngineSuffix configurable;
+  }
+
+  public class Gains {
+    ctor public Gains();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Gains.Gain> getGain();
+  }
+
+  public static class Gains.Gain {
+    ctor public Gains.Gain();
+    method @Nullable public android.audio.policy.configuration.V7_1.AudioChannelMask getChannel_mask();
+    method @Nullable public int getDefaultValueMB();
+    method @Nullable public int getMaxRampMs();
+    method @Nullable public int getMaxValueMB();
+    method @Nullable public int getMinRampMs();
+    method @Nullable public int getMinValueMB();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.AudioGainMode> getMode();
+    method @Nullable public String getName();
+    method @Nullable public int getStepValueMB();
+    method @Nullable public boolean getUseForVolume();
+    method public void setChannel_mask(@Nullable android.audio.policy.configuration.V7_1.AudioChannelMask);
+    method public void setDefaultValueMB(@Nullable int);
+    method public void setMaxRampMs(@Nullable int);
+    method public void setMaxValueMB(@Nullable int);
+    method public void setMinRampMs(@Nullable int);
+    method public void setMinValueMB(@Nullable int);
+    method public void setMode(@Nullable java.util.List<android.audio.policy.configuration.V7_1.AudioGainMode>);
+    method public void setName(@Nullable String);
+    method public void setStepValueMB(@Nullable int);
+    method public void setUseForVolume(@Nullable boolean);
+  }
+
+  public class GlobalConfiguration {
+    ctor public GlobalConfiguration();
+    method @Nullable public boolean getCall_screen_mode_supported();
+    method @Nullable public android.audio.policy.configuration.V7_1.EngineSuffix getEngine_library();
+    method @Nullable public boolean getSpeaker_drc_enabled();
+    method public void setCall_screen_mode_supported(@Nullable boolean);
+    method public void setEngine_library(@Nullable android.audio.policy.configuration.V7_1.EngineSuffix);
+    method public void setSpeaker_drc_enabled(@Nullable boolean);
+  }
+
+  public enum HalVersion {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.HalVersion _2_0;
+    enum_constant public static final android.audio.policy.configuration.V7_1.HalVersion _3_0;
+  }
+
+  public class MixPorts {
+    ctor public MixPorts();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.MixPorts.MixPort> getMixPort();
+  }
+
+  public static class MixPorts.MixPort {
+    ctor public MixPorts.MixPort();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.AudioInOutFlag> getFlags();
+    method @Nullable public android.audio.policy.configuration.V7_1.Gains getGains();
+    method @Nullable public long getMaxActiveCount();
+    method @Nullable public long getMaxOpenCount();
+    method @Nullable public String getName();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.AudioUsage> getPreferredUsage();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Profile> getProfile();
+    method @Nullable public long getRecommendedMuteDurationMs();
+    method @Nullable public android.audio.policy.configuration.V7_1.Role getRole();
+    method public void setFlags(@Nullable java.util.List<android.audio.policy.configuration.V7_1.AudioInOutFlag>);
+    method public void setGains(@Nullable android.audio.policy.configuration.V7_1.Gains);
+    method public void setMaxActiveCount(@Nullable long);
+    method public void setMaxOpenCount(@Nullable long);
+    method public void setName(@Nullable String);
+    method public void setPreferredUsage(@Nullable java.util.List<android.audio.policy.configuration.V7_1.AudioUsage>);
+    method public void setRecommendedMuteDurationMs(@Nullable long);
+    method public void setRole(@Nullable android.audio.policy.configuration.V7_1.Role);
+  }
+
+  public enum MixType {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.MixType mix;
+    enum_constant public static final android.audio.policy.configuration.V7_1.MixType mux;
+  }
+
+  public class Modules {
+    ctor public Modules();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Modules.Module> getModule();
+  }
+
+  public static class Modules.Module {
+    ctor public Modules.Module();
+    method @Nullable public android.audio.policy.configuration.V7_1.AttachedDevices getAttachedDevices();
+    method @Nullable public String getDefaultOutputDevice();
+    method @Nullable public android.audio.policy.configuration.V7_1.DevicePorts getDevicePorts();
+    method @Nullable public android.audio.policy.configuration.V7_1.HalVersion getHalVersion();
+    method @Nullable public android.audio.policy.configuration.V7_1.MixPorts getMixPorts();
+    method @Nullable public String getName();
+    method @Nullable public android.audio.policy.configuration.V7_1.Routes getRoutes();
+    method public void setAttachedDevices(@Nullable android.audio.policy.configuration.V7_1.AttachedDevices);
+    method public void setDefaultOutputDevice(@Nullable String);
+    method public void setDevicePorts(@Nullable android.audio.policy.configuration.V7_1.DevicePorts);
+    method public void setHalVersion(@Nullable android.audio.policy.configuration.V7_1.HalVersion);
+    method public void setMixPorts(@Nullable android.audio.policy.configuration.V7_1.MixPorts);
+    method public void setName(@Nullable String);
+    method public void setRoutes(@Nullable android.audio.policy.configuration.V7_1.Routes);
+  }
+
+  public class Profile {
+    ctor public Profile();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.AudioChannelMask> getChannelMasks();
+    method @Nullable public android.audio.policy.configuration.V7_1.AudioEncapsulationType getEncapsulationType();
+    method @Nullable public String getFormat();
+    method @Nullable public String getName();
+    method @Nullable public java.util.List<java.math.BigInteger> getSamplingRates();
+    method public void setChannelMasks(@Nullable java.util.List<android.audio.policy.configuration.V7_1.AudioChannelMask>);
+    method public void setEncapsulationType(@Nullable android.audio.policy.configuration.V7_1.AudioEncapsulationType);
+    method public void setFormat(@Nullable String);
+    method public void setName(@Nullable String);
+    method public void setSamplingRates(@Nullable java.util.List<java.math.BigInteger>);
+  }
+
+  public class Reference {
+    ctor public Reference();
+    method @Nullable public String getName();
+    method @Nullable public java.util.List<java.lang.String> getPoint();
+    method public void setName(@Nullable String);
+  }
+
+  public enum Role {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.Role sink;
+    enum_constant public static final android.audio.policy.configuration.V7_1.Role source;
+  }
+
+  public class Routes {
+    ctor public Routes();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Routes.Route> getRoute();
+  }
+
+  public static class Routes.Route {
+    ctor public Routes.Route();
+    method @Nullable public String getSink();
+    method @Nullable public String getSources();
+    method @Nullable public android.audio.policy.configuration.V7_1.MixType getType();
+    method public void setSink(@Nullable String);
+    method public void setSources(@Nullable String);
+    method public void setType(@Nullable android.audio.policy.configuration.V7_1.MixType);
+  }
+
+  public class SurroundFormats {
+    ctor public SurroundFormats();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.SurroundFormats.Format> getFormat();
+  }
+
+  public static class SurroundFormats.Format {
+    ctor public SurroundFormats.Format();
+    method @Nullable public String getName();
+    method @Nullable public java.util.List<java.lang.String> getSubformats();
+    method public void setName(@Nullable String);
+    method public void setSubformats(@Nullable java.util.List<java.lang.String>);
+  }
+
+  public class SurroundSound {
+    ctor public SurroundSound();
+    method @Nullable public android.audio.policy.configuration.V7_1.SurroundFormats getFormats();
+    method public void setFormats(@Nullable android.audio.policy.configuration.V7_1.SurroundFormats);
+  }
+
+  public enum Version {
+    method @NonNull public String getRawName();
+    enum_constant public static final android.audio.policy.configuration.V7_1.Version _7_0;
+    enum_constant public static final android.audio.policy.configuration.V7_1.Version _7_1;
+  }
+
+  public class Volume {
+    ctor public Volume();
+    method @Nullable public android.audio.policy.configuration.V7_1.DeviceCategory getDeviceCategory();
+    method @Nullable public java.util.List<java.lang.String> getPoint();
+    method @Nullable public String getRef();
+    method @Nullable public android.audio.policy.configuration.V7_1.AudioStreamType getStream();
+    method public void setDeviceCategory(@Nullable android.audio.policy.configuration.V7_1.DeviceCategory);
+    method public void setRef(@Nullable String);
+    method public void setStream(@Nullable android.audio.policy.configuration.V7_1.AudioStreamType);
+  }
+
+  public class Volumes {
+    ctor public Volumes();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Reference> getReference();
+    method @Nullable public java.util.List<android.audio.policy.configuration.V7_1.Volume> getVolume();
+  }
+
+  public class XmlParser {
+    ctor public XmlParser();
+    method @Nullable public static android.audio.policy.configuration.V7_1.AudioPolicyConfiguration read(@NonNull java.io.InputStream) throws javax.xml.datatype.DatatypeConfigurationException, java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method @Nullable public static String readText(@NonNull org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static void skip(@NonNull org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+  }
+
+}
+
diff --git a/audio/7.1/config/api/last_current.txt b/audio/7.1/config/api/last_current.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/7.1/config/api/last_current.txt
diff --git a/audio/7.1/config/api/last_removed.txt b/audio/7.1/config/api/last_removed.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/7.1/config/api/last_removed.txt
diff --git a/audio/7.1/config/api/removed.txt b/audio/7.1/config/api/removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/audio/7.1/config/api/removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/audio/7.1/config/audio_policy_configuration.xsd b/audio/7.1/config/audio_policy_configuration.xsd
new file mode 100644
index 0000000..7e1da90
--- /dev/null
+++ b/audio/7.1/config/audio_policy_configuration.xsd
@@ -0,0 +1,825 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+
+         Licensed under the Apache License, Version 2.0 (the "License");
+         you may not use this file except in compliance with the License.
+         You may obtain a copy of the License at
+
+                    http://www.apache.org/licenses/LICENSE-2.0
+
+         Unless required by applicable law or agreed to in writing, software
+         distributed under the License is distributed on an "AS IS" BASIS,
+         WITHOUT 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 version="2.0"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified"
+           xmlns:xs="http://www.w3.org/2001/XMLSchema">
+    <!-- List the config versions supported by audio policy. -->
+    <xs:simpleType name="version">
+        <xs:restriction base="xs:decimal">
+            <xs:enumeration value="7.0"/>
+            <xs:enumeration value="7.1"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="halVersion">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Version of the interface the hal implements. Note that this
+                relates to legacy HAL API versions since HIDL APIs are versioned
+                using other mechanisms.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:decimal">
+            <!-- List of HAL versions supported by the framework. -->
+            <xs:enumeration value="2.0"/>
+            <xs:enumeration value="3.0"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:element name="audioPolicyConfiguration">
+        <xs:complexType>
+            <xs:sequence>
+                <xs:element name="globalConfiguration" type="globalConfiguration"/>
+                <xs:element name="modules" type="modules" maxOccurs="unbounded"/>
+                <xs:element name="volumes" type="volumes" maxOccurs="unbounded"/>
+                <xs:element name="surroundSound" type="surroundSound" minOccurs="0" />
+            </xs:sequence>
+            <xs:attribute name="version" type="version"/>
+        </xs:complexType>
+        <xs:key name="moduleNameKey">
+            <xs:selector xpath="modules/module"/>
+            <xs:field xpath="@name"/>
+        </xs:key>
+        <xs:unique name="volumeTargetUniqueness">
+            <xs:selector xpath="volumes/volume"/>
+            <xs:field xpath="@stream"/>
+            <xs:field xpath="@deviceCategory"/>
+        </xs:unique>
+        <xs:key name="volumeCurveNameKey">
+            <xs:selector xpath="volumes/reference"/>
+            <xs:field xpath="@name"/>
+        </xs:key>
+        <xs:keyref name="volumeCurveRef" refer="volumeCurveNameKey">
+            <xs:selector xpath="volumes/volume"/>
+            <xs:field xpath="@ref"/>
+        </xs:keyref>
+    </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:attribute name="engine_library" type="engineSuffix" use="optional"/>
+    </xs:complexType>
+    <xs:complexType name="modules">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                There should be one section per audio HW module present on the platform.
+                Each <module/> contains two mandatory tags: “halVersion” and “name”.
+                The module "name" is the same as in previous .conf file.
+                Each module must contain the following sections:
+                 - <devicePorts/>: a list of device descriptors for all
+                   input and output devices accessible via this module.
+                   This contains both permanently attached devices and removable devices.
+                 - <mixPorts/>: listing all output and input streams exposed by the audio HAL
+                 - <routes/>: list of possible connections between input
+                   and output devices or between stream and devices.
+                   A <route/> is defined by a set of 3 attributes:
+                        -"type": mux|mix means all sources are mutual exclusive (mux) or can be mixed (mix)
+                        -"sink": the sink involved in this route
+                        -"sources": all the sources than can be connected to the sink via this route
+                 - <attachedDevices/>: permanently attached devices.
+                   The attachedDevices section is a list of devices names.
+                   Their names correspond to device names defined in "devicePorts" section.
+                 - <defaultOutputDevice/> is the device to be used when no policy rule applies
+            </xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="module" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="attachedDevices" type="attachedDevices" minOccurs="0">
+                            <xs:unique name="attachedDevicesUniqueness">
+                                <xs:selector xpath="item"/>
+                                <xs:field xpath="."/>
+                            </xs:unique>
+                        </xs:element>
+                        <xs:element name="defaultOutputDevice" type="xs:token" minOccurs="0"/>
+                        <xs:element name="mixPorts" type="mixPorts" minOccurs="0"/>
+                        <xs:element name="devicePorts" type="devicePorts" minOccurs="0"/>
+                        <xs:element name="routes" type="routes" minOccurs="0"/>
+                    </xs:sequence>
+                    <xs:attribute name="name" type="xs:string" use="required"/>
+                    <xs:attribute name="halVersion" type="halVersion" use="required"/>
+                </xs:complexType>
+                <xs:unique name="mixPortNameUniqueness">
+                    <xs:selector xpath="mixPorts/mixPort"/>
+                    <xs:field xpath="@name"/>
+                </xs:unique>
+                <xs:key name="devicePortNameKey">
+                    <xs:selector xpath="devicePorts/devicePort"/>
+                    <xs:field xpath="@tagName"/>
+                </xs:key>
+                <xs:unique name="devicePortUniqueness">
+                    <xs:selector xpath="devicePorts/devicePort"/>
+                    <xs:field xpath="@type"/>
+                    <xs:field xpath="@address"/>
+                </xs:unique>
+                <xs:keyref name="defaultOutputDeviceRef" refer="devicePortNameKey">
+                    <xs:selector xpath="defaultOutputDevice"/>
+                    <xs:field xpath="."/>
+                </xs:keyref>
+                <xs:keyref name="attachedDeviceRef" refer="devicePortNameKey">
+                    <xs:selector xpath="attachedDevices/item"/>
+                    <xs:field xpath="."/>
+                </xs:keyref>
+                <!-- The following 3 constraints try to make sure each sink port
+                     is reference in one an only one route. -->
+                <xs:key name="routeSinkKey">
+                    <!-- predicate [@type='sink'] does not work in xsd 1.0 -->
+                    <xs:selector xpath="devicePorts/devicePort|mixPorts/mixPort"/>
+                    <xs:field xpath="@tagName|@name"/>
+                </xs:key>
+                <xs:keyref name="routeSinkRef" refer="routeSinkKey">
+                    <xs:selector xpath="routes/route"/>
+                    <xs:field xpath="@sink"/>
+                </xs:keyref>
+                <xs:unique name="routeUniqueness">
+                    <xs:selector xpath="routes/route"/>
+                    <xs:field xpath="@sink"/>
+                </xs:unique>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="attachedDevices">
+        <xs:sequence>
+            <xs:element name="item" type="xs:token" minOccurs="0" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="audioInOutFlag">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+              The flags indicate suggested stream attributes supported by the profile.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_DIRECT" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_PRIMARY" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_FAST" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_DEEP_BUFFER" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_NON_BLOCKING" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_HW_AV_SYNC" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_TTS" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_RAW" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_SYNC" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_DIRECT_PCM" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_MMAP_NOIRQ" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_VOIP_RX" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_INCALL_MUSIC" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_GAPLESS_OFFLOAD" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_SPATIALIZER" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_ULTRASOUND" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_FAST" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_HW_HOTWORD" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_RAW" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_SYNC" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_MMAP_NOIRQ" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_VOIP_TX" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_HW_AV_SYNC" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_DIRECT" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_ULTRASOUND" />
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioInOutFlags">
+        <xs:list itemType="audioInOutFlag" />
+    </xs:simpleType>
+    <xs:simpleType name="role">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="sink"/>
+            <xs:enumeration value="source"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="mixPorts">
+        <xs:sequence>
+            <xs:element name="mixPort" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="profile" type="profile" minOccurs="0" maxOccurs="unbounded"/>
+                        <xs:element name="gains" type="gains" minOccurs="0"/>
+                    </xs:sequence>
+                    <xs:attribute name="name" type="xs:token" use="required"/>
+                    <xs:attribute name="role" type="role" use="required"/>
+                    <xs:attribute name="flags" type="audioInOutFlags"/>
+                    <xs:attribute name="maxOpenCount" type="xs:unsignedInt"/>
+                    <xs:attribute name="maxActiveCount" type="xs:unsignedInt"/>
+                    <xs:attribute name="preferredUsage" type="audioUsageList">
+                        <xs:annotation>
+                            <xs:documentation xml:lang="en">
+                                When choosing the mixPort of an audio track, the audioPolicy
+                                first considers the mixPorts with a preferredUsage including
+                                the track AudioUsage preferred .
+                                If non support the track format, the other mixPorts are considered.
+                                Eg: a <mixPort preferredUsage="AUDIO_USAGE_MEDIA" /> will receive
+                                    the audio of all apps playing with a MEDIA usage.
+                                    It may receive audio from ALARM if there are no audio compatible
+                                    <mixPort preferredUsage="AUDIO_USAGE_ALARM" />.
+                             </xs:documentation>
+                        </xs:annotation>
+                    </xs:attribute>
+                    <xs:attribute name="recommendedMuteDurationMs" type="xs:unsignedInt"/>
+                </xs:complexType>
+                <xs:unique name="mixPortProfileUniqueness">
+                    <xs:selector xpath="profile"/>
+                    <xs:field xpath="format"/>
+                    <xs:field xpath="samplingRate"/>
+                    <xs:field xpath="channelMasks"/>
+                </xs:unique>
+                <xs:unique name="mixPortGainUniqueness">
+                    <xs:selector xpath="gains/gain"/>
+                    <xs:field xpath="@name"/>
+                </xs:unique>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="audioDevice">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_DEVICE_NONE"/>
+
+            <xs:enumeration value="AUDIO_DEVICE_OUT_EARPIECE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADPHONE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI_EARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_USB_ACCESSORY"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_USB_DEVICE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_TELEPHONY_TX"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_LINE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI_ARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_SPDIF"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_FM"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_LINE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER_SAFE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_IP"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BUS"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_PROXY"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_USB_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HEARING_AID"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_ECHO_CANCELLER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLE_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLE_SPEAKER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLE_BROADCAST"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_DEFAULT"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_STUB"/>
+
+            <xs:enumeration value="AUDIO_DEVICE_IN_COMMUNICATION"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_AMBIENT"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BUILTIN_MIC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_WIRED_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_AUX_DIGITAL"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_TELEPHONY_RX"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BACK_MIC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_USB_ACCESSORY"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_USB_DEVICE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_FM_TUNER"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_TV_TUNER"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_LINE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_SPDIF"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_A2DP"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_LOOPBACK"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_IP"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BUS"/>
+            <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_HDMI_EARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_ECHO_REFERENCE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLE_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_DEFAULT"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_STUB"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="vendorExtension">
+        <!-- Vendor extension names must be prefixed by "VX_" to distinguish them from
+             AOSP values. Vendors must namespace their names to avoid conflicts. The
+             namespace part must only use capital latin characters and decimal digits and
+             consist of at least 3 characters. The part of the extension name after the
+             namespace may in addition include underscores. Example for a hypothetical
+             Google virtual reality device:
+
+                 <devicePort tagName="VR" type="VX_GOOGLE_VR" role="sink" />
+        -->
+        <xs:restriction base="xs:string">
+            <xs:pattern value="VX_[A-Z0-9]{3,}_[_A-Z0-9]+"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="extendableAudioDevice">
+        <xs:union memberTypes="audioDevice vendorExtension"/>
+    </xs:simpleType>
+    <xs:simpleType name="audioFormat">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_FORMAT_DEFAULT" />
+            <xs:enumeration value="AUDIO_FORMAT_PCM_16_BIT" />
+            <xs:enumeration value="AUDIO_FORMAT_PCM_8_BIT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_32_BIT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_8_24_BIT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_FLOAT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_24_BIT_PACKED"/>
+            <xs:enumeration value="AUDIO_FORMAT_MP3"/>
+            <xs:enumeration value="AUDIO_FORMAT_AMR_NB"/>
+            <xs:enumeration value="AUDIO_FORMAT_AMR_WB"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_MAIN"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_SSR"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LTP"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_SCALABLE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ERLC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ELD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_XHE"/>
+            <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_VORBIS"/>
+            <xs:enumeration value="AUDIO_FORMAT_OPUS"/>
+            <xs:enumeration value="AUDIO_FORMAT_AC3"/>
+            <xs:enumeration value="AUDIO_FORMAT_E_AC3"/>
+            <xs:enumeration value="AUDIO_FORMAT_E_AC3_JOC"/>
+            <xs:enumeration value="AUDIO_FORMAT_DTS"/>
+            <xs:enumeration value="AUDIO_FORMAT_DTS_HD"/>
+            <xs:enumeration value="AUDIO_FORMAT_IEC61937"/>
+            <xs:enumeration value="AUDIO_FORMAT_DOLBY_TRUEHD"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRC"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRCB"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRCWB"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRCNW"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADIF"/>
+            <xs:enumeration value="AUDIO_FORMAT_WMA"/>
+            <xs:enumeration value="AUDIO_FORMAT_WMA_PRO"/>
+            <xs:enumeration value="AUDIO_FORMAT_AMR_WB_PLUS"/>
+            <xs:enumeration value="AUDIO_FORMAT_MP2"/>
+            <xs:enumeration value="AUDIO_FORMAT_QCELP"/>
+            <xs:enumeration value="AUDIO_FORMAT_DSD"/>
+            <xs:enumeration value="AUDIO_FORMAT_FLAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_ALAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_APE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_MAIN"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SSR"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LTP"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SCALABLE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ERLC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ELD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_XHE"/>
+            <xs:enumeration value="AUDIO_FORMAT_SBC"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX_HD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AC4"/>
+            <xs:enumeration value="AUDIO_FORMAT_LDAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT_1_0"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT_2_0"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT_2_1"/>
+            <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:enumeration value="AUDIO_FORMAT_APTX_TWSP"/>
+            <xs:enumeration value="AUDIO_FORMAT_LC3"/>
+            <xs:enumeration value="AUDIO_FORMAT_MPEGH_BL_L3"/>
+            <xs:enumeration value="AUDIO_FORMAT_MPEGH_BL_L4"/>
+            <xs:enumeration value="AUDIO_FORMAT_MPEGH_LC_L3"/>
+            <xs:enumeration value="AUDIO_FORMAT_MPEGH_LC_L4"/>
+            <xs:enumeration value="AUDIO_FORMAT_IEC60958"/>
+            <xs:enumeration value="AUDIO_FORMAT_DTS_UHD"/>
+            <xs:enumeration value="AUDIO_FORMAT_DRA"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="extendableAudioFormat">
+        <xs:union memberTypes="audioFormat vendorExtension"/>
+    </xs:simpleType>
+    <xs:simpleType name="audioUsage">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio usage specifies the intended use case for the sound being played.
+                Please consult frameworks/base/media/java/android/media/AudioAttributes.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_USAGE_UNKNOWN" />
+            <xs:enumeration value="AUDIO_USAGE_MEDIA" />
+            <xs:enumeration value="AUDIO_USAGE_VOICE_COMMUNICATION" />
+            <xs:enumeration value="AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING" />
+            <xs:enumeration value="AUDIO_USAGE_ALARM" />
+            <xs:enumeration value="AUDIO_USAGE_NOTIFICATION" />
+            <xs:enumeration value="AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE" />
+            <xs:enumeration value="AUDIO_USAGE_NOTIFICATION_EVENT" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANCE_SONIFICATION" />
+            <xs:enumeration value="AUDIO_USAGE_GAME" />
+            <xs:enumeration value="AUDIO_USAGE_VIRTUAL_SOURCE" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANT" />
+            <xs:enumeration value="AUDIO_USAGE_CALL_ASSISTANT" />
+            <xs:enumeration value="AUDIO_USAGE_EMERGENCY" />
+            <xs:enumeration value="AUDIO_USAGE_SAFETY" />
+            <xs:enumeration value="AUDIO_USAGE_VEHICLE_STATUS" />
+            <xs:enumeration value="AUDIO_USAGE_ANNOUNCEMENT" />
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioUsageList">
+        <xs:list itemType="audioUsage"/>
+    </xs:simpleType>
+    <xs:simpleType name="audioContentType">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio content type expresses the general category of the content.
+                Please consult frameworks/base/media/java/android/media/AudioAttributes.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_UNKNOWN"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_SPEECH"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_MUSIC"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_MOVIE"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_SONIFICATION"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_ULTRASOUND"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="samplingRates">
+        <xs:list itemType="xs:nonNegativeInteger" />
+    </xs:simpleType>
+    <xs:simpleType name="audioChannelMask">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio channel mask specifies presence of particular channels.
+                There are two representations:
+                - representation position (traditional discrete channel specification,
+                  e.g. "left", "right");
+                - indexed (this is similar to "tracks" in audio mixing, channels
+                  are represented using numbers).
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_CHANNEL_NONE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_TRI"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_TRI_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD_SIDE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_SURROUND"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_PENTA"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1_SIDE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_6POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_9POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_9POINT1POINT6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_13POINT_360RA"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_22POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_A"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_STEREO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_FRONT_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_2POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_2POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_3POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_3POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_5POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_CALL_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_3"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_5"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_7"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_8"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_9"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_10"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_11"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_12"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_13"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_14"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_15"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_16"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_17"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_18"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_19"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_20"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_21"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_22"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_23"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_24"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="channelMasks">
+        <xs:list itemType="audioChannelMask" />
+    </xs:simpleType>
+    <xs:simpleType name="audioEncapsulationType">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_ENCAPSULATION_TYPE_NONE"/>
+            <xs:enumeration value="AUDIO_ENCAPSULATION_TYPE_IEC61937"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="profile">
+        <xs:attribute name="name" type="xs:token" use="optional"/>
+        <xs:attribute name="format" type="extendableAudioFormat" use="optional"/>
+        <xs:attribute name="samplingRates" type="samplingRates" use="optional"/>
+        <xs:attribute name="channelMasks" type="channelMasks" use="optional"/>
+        <xs:attribute name="encapsulationType" type="audioEncapsulationType" use="optional"/>
+    </xs:complexType>
+    <xs:simpleType name="audioGainMode">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_GAIN_MODE_JOINT"/>
+            <xs:enumeration value="AUDIO_GAIN_MODE_CHANNELS"/>
+            <xs:enumeration value="AUDIO_GAIN_MODE_RAMP"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioGainModeMaskUnrestricted">
+        <xs:list itemType="audioGainMode" />
+    </xs:simpleType>
+    <xs:simpleType name='audioGainModeMask'>
+        <xs:restriction base='audioGainModeMaskUnrestricted'>
+            <xs:minLength value='1' />
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="gains">
+        <xs:sequence>
+            <xs:element name="gain" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:attribute name="name" type="xs:token" use="required"/>
+                    <xs:attribute name="mode" type="audioGainModeMask" use="required"/>
+                    <xs:attribute name="channel_mask" type="audioChannelMask" use="optional"/>
+                    <xs:attribute name="minValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="maxValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="defaultValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="stepValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="minRampMs" type="xs:int" use="optional"/>
+                    <xs:attribute name="maxRampMs" type="xs:int" use="optional"/>
+                    <xs:attribute name="useForVolume" type="xs:boolean" use="optional"/>
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="devicePorts">
+        <xs:sequence>
+            <xs:element name="devicePort" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="profile" type="profile" minOccurs="0" maxOccurs="unbounded"/>
+                        <xs:element name="gains" type="gains" minOccurs="0"/>
+                    </xs:sequence>
+                    <xs:attribute name="tagName" type="xs:token" use="required"/>
+                    <xs:attribute name="type" type="extendableAudioDevice" use="required"/>
+                    <xs:attribute name="role" type="role" use="required"/>
+                    <xs:attribute name="address" type="xs:string" use="optional" default=""/>
+                    <!-- Note that XSD 1.0 can not check that a type only has one default. -->
+                    <xs:attribute name="default" type="xs:boolean" use="optional">
+                        <xs:annotation>
+                            <xs:documentation xml:lang="en">
+                                The default device will be used if multiple have the same type
+                                and no explicit route request exists for a specific device of
+                                that type.
+                            </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"/>
+                    <xs:field xpath="format"/>
+                    <xs:field xpath="samplingRate"/>
+                    <xs:field xpath="channelMasks"/>
+                </xs:unique>
+                <xs:unique name="devicePortGainUniqueness">
+                    <xs:selector xpath="gains/gain"/>
+                    <xs:field xpath="@name"/>
+                </xs:unique>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="mixType">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="mix"/>
+            <xs:enumeration value="mux"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="routes">
+        <xs:sequence>
+            <xs:element name="route" minOccurs="0" maxOccurs="unbounded">
+                <xs:annotation>
+                    <xs:documentation xml:lang="en">
+                        List all available sources for a given sink.
+                    </xs:documentation>
+                </xs:annotation>
+                <xs:complexType>
+                    <xs:attribute name="type" type="mixType" use="required"/>
+                    <xs:attribute name="sink" type="xs:string" use="required"/>
+                    <xs:attribute name="sources" type="xs:string" use="required"/>
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="volumes">
+        <xs:sequence>
+            <xs:element name="volume" type="volume" minOccurs="0" maxOccurs="unbounded"/>
+            <xs:element name="reference" type="reference" minOccurs="0" maxOccurs="unbounded">
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <!-- TODO: Always require a ref for better xsd validations.
+               Currently a volume could have no points nor ref
+               as it can not be forbidden by xsd 1.0.-->
+    <xs:simpleType name="volumePoint">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Comma separated pair of number.
+                The fist one is the framework level (between 0 and 100).
+                The second one is the volume to send to the HAL.
+                The framework will interpolate volumes not specified.
+                Their MUST be at least 2 points specified.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:pattern value="([0-9]{1,2}|100),-?[0-9]+"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioStreamType">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio stream type describing the intended use case of a stream.
+                Please consult frameworks/base/media/java/android/media/AudioSystem.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_STREAM_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_STREAM_SYSTEM"/>
+            <xs:enumeration value="AUDIO_STREAM_RING"/>
+            <xs:enumeration value="AUDIO_STREAM_MUSIC"/>
+            <xs:enumeration value="AUDIO_STREAM_ALARM"/>
+            <xs:enumeration value="AUDIO_STREAM_NOTIFICATION"/>
+            <xs:enumeration value="AUDIO_STREAM_BLUETOOTH_SCO"/>
+            <xs:enumeration value="AUDIO_STREAM_ENFORCED_AUDIBLE"/>
+            <xs:enumeration value="AUDIO_STREAM_DTMF"/>
+            <xs:enumeration value="AUDIO_STREAM_TTS"/>
+            <xs:enumeration value="AUDIO_STREAM_ACCESSIBILITY"/>
+            <xs:enumeration value="AUDIO_STREAM_ASSISTANT"/>
+            <xs:enumeration value="AUDIO_STREAM_REROUTING"/>
+            <xs:enumeration value="AUDIO_STREAM_PATCH"/>
+            <xs:enumeration value="AUDIO_STREAM_CALL_ASSISTANT"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioSource">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                An audio source defines the intended use case for the sound being recorded.
+                Please consult frameworks/base/media/java/android/media/MediaRecorder.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_SOURCE_DEFAULT"/>
+            <xs:enumeration value="AUDIO_SOURCE_MIC"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_UPLINK"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_DOWNLINK"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_SOURCE_CAMCORDER"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_RECOGNITION"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_COMMUNICATION"/>
+            <xs:enumeration value="AUDIO_SOURCE_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_SOURCE_UNPROCESSED"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_PERFORMANCE"/>
+            <xs:enumeration value="AUDIO_SOURCE_ECHO_REFERENCE"/>
+            <xs:enumeration value="AUDIO_SOURCE_FM_TUNER"/>
+            <xs:enumeration value="AUDIO_SOURCE_HOTWORD"/>
+            <xs:enumeration value="AUDIO_SOURCE_ULTRASOUND"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <!-- Enum values of device_category from Volume.h. -->
+    <xs:simpleType name="deviceCategory">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="DEVICE_CATEGORY_HEADSET"/>
+            <xs:enumeration value="DEVICE_CATEGORY_SPEAKER"/>
+            <xs:enumeration value="DEVICE_CATEGORY_EARPIECE"/>
+            <xs:enumeration value="DEVICE_CATEGORY_EXT_MEDIA"/>
+            <xs:enumeration value="DEVICE_CATEGORY_HEARING_AID"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="volume">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Volume section defines a volume curve for a given use case and device category.
+                It contains a list of points of this curve expressing the attenuation in Millibels
+                for a given volume index from 0 to 100.
+                <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER">
+                    <point>0,-9600</point>
+                    <point>100,0</point>
+                </volume>
+
+                It may also reference a reference/@name to avoid duplicating curves.
+                <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER"
+                        ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+                <reference name="DEFAULT_MEDIA_VOLUME_CURVE">
+                    <point>0,-9600</point>
+                    <point>100,0</point>
+                </reference>
+            </xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="point" type="volumePoint" minOccurs="0" maxOccurs="unbounded"/>
+        </xs:sequence>
+        <xs:attribute name="stream" type="audioStreamType"/>
+        <xs:attribute name="deviceCategory" type="deviceCategory"/>
+        <xs:attribute name="ref" type="xs:token" use="optional"/>
+    </xs:complexType>
+    <xs:complexType name="reference">
+        <xs:sequence>
+            <xs:element name="point" type="volumePoint" minOccurs="2" maxOccurs="unbounded"/>
+        </xs:sequence>
+        <xs:attribute name="name" type="xs:token" use="required"/>
+    </xs:complexType>
+    <xs:complexType name="surroundSound">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Surround Sound section provides configuration related to handling of
+                multi-channel formats.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="formats" type="surroundFormats"/>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="audioFormatsList">
+        <xs:list itemType="extendableAudioFormat" />
+    </xs:simpleType>
+    <xs:complexType name="surroundFormats">
+        <xs:sequence>
+            <xs:element name="format" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:attribute name="name" type="extendableAudioFormat" use="required"/>
+                    <xs:attribute name="subformats" type="audioFormatsList" />
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="engineSuffix">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="default"/>
+            <xs:enumeration value="configurable"/>
+        </xs:restriction>
+    </xs:simpleType>
+</xs:schema>
diff --git a/audio/7.1/types.hal b/audio/7.1/types.hal
new file mode 100644
index 0000000..9d8ee4d
--- /dev/null
+++ b/audio/7.1/types.hal
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.audio@7.1;
+
+/**
+ * Latency modes used for the variable latency feature on output streams.
+ * Used by setLatencyMode() and getRecommendedLatencyModes() methods.
+ */
+
+@export(name="audio_latency_mode_t", value_prefix="AUDIO_LATENCY_MODE_")
+enum LatencyMode : int32_t {
+    /** No specific constraint on the latency */
+    FREE = 0,
+    /** A relatively low latency compatible with head tracking operation (e.g less than 100ms) */
+    LOW = 1,
+};
diff --git a/audio/aidl/Android.bp b/audio/aidl/Android.bp
index c172674..6a0cfa5 100644
--- a/audio/aidl/Android.bp
+++ b/audio/aidl/Android.bp
@@ -47,6 +47,11 @@
             vndk: {
                 enabled: true,
             },
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.bluetooth",
+            ],
+            min_sdk_version: "31",
         },
     },
     versions: [
diff --git a/audio/common/7.1/Android.bp b/audio/common/7.1/Android.bp
new file mode 100644
index 0000000..a257510
--- /dev/null
+++ b/audio/common/7.1/Android.bp
@@ -0,0 +1,23 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+cc_library {
+    name: "android.hardware.audio.common@7.1-enums",
+    vendor_available: true,
+    generated_headers: ["audio_policy_configuration_V7_1_enums"],
+    generated_sources: ["audio_policy_configuration_V7_1_enums"],
+    header_libs: ["libxsdc-utils"],
+    export_generated_headers: ["audio_policy_configuration_V7_1_enums"],
+    export_header_lib_headers: ["libxsdc-utils"],
+    export_include_dirs: ["enums/include"],
+    shared_libs: [
+        "libbase",
+        "liblog",
+    ],
+}
diff --git a/audio/common/7.1/enums/OWNERS b/audio/common/7.1/enums/OWNERS
new file mode 100644
index 0000000..24071af
--- /dev/null
+++ b/audio/common/7.1/enums/OWNERS
@@ -0,0 +1,2 @@
+elaurent@google.com
+mnaganov@google.com
diff --git a/audio/common/7.1/enums/include/android_audio_policy_configuration_V7_1-enums.h b/audio/common/7.1/enums/include/android_audio_policy_configuration_V7_1-enums.h
new file mode 100644
index 0000000..6f6a0ca
--- /dev/null
+++ b/audio/common/7.1/enums/include/android_audio_policy_configuration_V7_1-enums.h
@@ -0,0 +1,303 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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_AUDIO_POLICY_CONFIGURATION_V7_1__ENUMS_H
+#define ANDROID_AUDIO_POLICY_CONFIGURATION_V7_1__ENUMS_H
+
+#include <sys/types.h>
+#include <regex>
+#include <string>
+
+#include <android_audio_policy_configuration_V7_1_enums.h>
+
+namespace android::audio::policy::configuration::V7_1 {
+
+static inline size_t getChannelCount(AudioChannelMask mask) {
+    switch (mask) {
+        case AudioChannelMask::AUDIO_CHANNEL_NONE:
+            return 0;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_MONO:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_MONO:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_1:
+            return 1;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_STEREO:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_MONO_HAPTIC_A:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_HAPTIC_AB:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_STEREO:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_FRONT_BACK:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_VOICE_CALL_MONO:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_2:
+            return 2;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_2POINT1:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_TRI:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_TRI_BACK:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_3:
+            return 3;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_2POINT0POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_3POINT1:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_QUAD:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_QUAD_BACK:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_QUAD_SIDE:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_SURROUND:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_2POINT0POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_4:
+            return 4;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_2POINT1POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_3POINT0POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_PENTA:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_2POINT1POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_3POINT0POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_5:
+            return 5;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_3POINT1POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_5POINT1:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_5POINT1_BACK:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_5POINT1_SIDE:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_6:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_3POINT1POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_IN_5POINT1:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_6:
+            return 6;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_6POINT1:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_7:
+            return 7;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_5POINT1POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_7POINT1:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_8:
+            return 8;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_9:
+            return 9;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_5POINT1POINT4:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_7POINT1POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_10:
+            return 10;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_11:
+            return 11;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_7POINT1POINT4:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_12:
+            return 12;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_13POINT_360RA:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_13:
+            return 13;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_9POINT1POINT4:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_14:
+            return 14;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_15:
+            return 15;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_9POINT1POINT6:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_16:
+            return 16;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_17:
+            return 17;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_18:
+            return 18;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_19:
+            return 19;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_20:
+            return 20;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_21:
+            return 21;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_22:
+            return 22;
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_23:
+            return 23;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_22POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_24:
+            return 24;
+        case AudioChannelMask::UNKNOWN:
+            return 0;
+            // No default to make sure all cases are covered.
+    }
+    // This is to avoid undefined behavior if 'mask' isn't a valid enum value.
+    return 0;
+}
+
+static inline ssize_t getChannelCount(const std::string& mask) {
+    return getChannelCount(stringToAudioChannelMask(mask));
+}
+
+static inline bool isOutputDevice(AudioDevice device) {
+    switch (device) {
+        case AudioDevice::UNKNOWN:
+        case AudioDevice::AUDIO_DEVICE_NONE:
+            return false;
+        case AudioDevice::AUDIO_DEVICE_OUT_EARPIECE:
+        case AudioDevice::AUDIO_DEVICE_OUT_SPEAKER:
+        case AudioDevice::AUDIO_DEVICE_OUT_WIRED_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLUETOOTH_SCO:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLUETOOTH_A2DP:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER:
+        case AudioDevice::AUDIO_DEVICE_OUT_AUX_DIGITAL:
+        case AudioDevice::AUDIO_DEVICE_OUT_HDMI:
+        case AudioDevice::AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_USB_ACCESSORY:
+        case AudioDevice::AUDIO_DEVICE_OUT_USB_DEVICE:
+        case AudioDevice::AUDIO_DEVICE_OUT_REMOTE_SUBMIX:
+        case AudioDevice::AUDIO_DEVICE_OUT_TELEPHONY_TX:
+        case AudioDevice::AUDIO_DEVICE_OUT_LINE:
+        case AudioDevice::AUDIO_DEVICE_OUT_HDMI_ARC:
+        case AudioDevice::AUDIO_DEVICE_OUT_HDMI_EARC:
+        case AudioDevice::AUDIO_DEVICE_OUT_SPDIF:
+        case AudioDevice::AUDIO_DEVICE_OUT_FM:
+        case AudioDevice::AUDIO_DEVICE_OUT_AUX_LINE:
+        case AudioDevice::AUDIO_DEVICE_OUT_SPEAKER_SAFE:
+        case AudioDevice::AUDIO_DEVICE_OUT_IP:
+        case AudioDevice::AUDIO_DEVICE_OUT_BUS:
+        case AudioDevice::AUDIO_DEVICE_OUT_PROXY:
+        case AudioDevice::AUDIO_DEVICE_OUT_USB_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_HEARING_AID:
+        case AudioDevice::AUDIO_DEVICE_OUT_ECHO_CANCELLER:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLE_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLE_SPEAKER:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLE_BROADCAST:
+        case AudioDevice::AUDIO_DEVICE_OUT_DEFAULT:
+        case AudioDevice::AUDIO_DEVICE_OUT_STUB:
+            return true;
+        case AudioDevice::AUDIO_DEVICE_IN_COMMUNICATION:
+        case AudioDevice::AUDIO_DEVICE_IN_AMBIENT:
+        case AudioDevice::AUDIO_DEVICE_IN_BUILTIN_MIC:
+        case AudioDevice::AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_IN_WIRED_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_IN_AUX_DIGITAL:
+        case AudioDevice::AUDIO_DEVICE_IN_HDMI:
+        case AudioDevice::AUDIO_DEVICE_IN_VOICE_CALL:
+        case AudioDevice::AUDIO_DEVICE_IN_TELEPHONY_RX:
+        case AudioDevice::AUDIO_DEVICE_IN_BACK_MIC:
+        case AudioDevice::AUDIO_DEVICE_IN_REMOTE_SUBMIX:
+        case AudioDevice::AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_IN_USB_ACCESSORY:
+        case AudioDevice::AUDIO_DEVICE_IN_USB_DEVICE:
+        case AudioDevice::AUDIO_DEVICE_IN_FM_TUNER:
+        case AudioDevice::AUDIO_DEVICE_IN_TV_TUNER:
+        case AudioDevice::AUDIO_DEVICE_IN_LINE:
+        case AudioDevice::AUDIO_DEVICE_IN_SPDIF:
+        case AudioDevice::AUDIO_DEVICE_IN_BLUETOOTH_A2DP:
+        case AudioDevice::AUDIO_DEVICE_IN_LOOPBACK:
+        case AudioDevice::AUDIO_DEVICE_IN_IP:
+        case AudioDevice::AUDIO_DEVICE_IN_BUS:
+        case AudioDevice::AUDIO_DEVICE_IN_PROXY:
+        case AudioDevice::AUDIO_DEVICE_IN_USB_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_IN_BLUETOOTH_BLE:
+        case AudioDevice::AUDIO_DEVICE_IN_HDMI_ARC:
+        case AudioDevice::AUDIO_DEVICE_IN_HDMI_EARC:
+        case AudioDevice::AUDIO_DEVICE_IN_ECHO_REFERENCE:
+        case AudioDevice::AUDIO_DEVICE_IN_BLE_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_IN_DEFAULT:
+        case AudioDevice::AUDIO_DEVICE_IN_STUB:
+            return false;
+            // No default to make sure all cases are covered.
+    }
+    // This is to avoid undefined behavior if 'device' isn't a valid enum value.
+    return false;
+}
+
+static inline bool isOutputDevice(const std::string& device) {
+    return isOutputDevice(stringToAudioDevice(device));
+}
+
+static inline bool isTelephonyDevice(AudioDevice device) {
+    return device == AudioDevice::AUDIO_DEVICE_OUT_TELEPHONY_TX ||
+           device == AudioDevice::AUDIO_DEVICE_IN_TELEPHONY_RX;
+}
+
+static inline bool isTelephonyDevice(const std::string& device) {
+    return isTelephonyDevice(stringToAudioDevice(device));
+}
+
+static inline bool maybeVendorExtension(const std::string& s) {
+    // Only checks whether the string starts with the "vendor prefix".
+    static const std::string vendorPrefix = "VX_";
+    return s.size() > vendorPrefix.size() && s.substr(0, vendorPrefix.size()) == vendorPrefix;
+}
+
+static inline bool isVendorExtension(const std::string& s) {
+    // Must be the same as the "vendorExtension" rule from the XSD file.
+    static const std::regex vendorExtension("VX_[A-Z0-9]{3,}_[_A-Z0-9]+");
+    return std::regex_match(s.begin(), s.end(), vendorExtension);
+}
+
+static inline bool isUnknownAudioChannelMask(const std::string& mask) {
+    return stringToAudioChannelMask(mask) == AudioChannelMask::UNKNOWN;
+}
+
+static inline bool isUnknownAudioContentType(const std::string& contentType) {
+    return stringToAudioContentType(contentType) == AudioContentType::UNKNOWN;
+}
+
+static inline bool isUnknownAudioDevice(const std::string& device) {
+    return stringToAudioDevice(device) == AudioDevice::UNKNOWN && !isVendorExtension(device);
+}
+
+static inline bool isUnknownAudioFormat(const std::string& format) {
+    return stringToAudioFormat(format) == AudioFormat::UNKNOWN && !isVendorExtension(format);
+}
+
+static inline bool isUnknownAudioGainMode(const std::string& mode) {
+    return stringToAudioGainMode(mode) == AudioGainMode::UNKNOWN;
+}
+
+static inline bool isUnknownAudioInOutFlag(const std::string& flag) {
+    return stringToAudioInOutFlag(flag) == AudioInOutFlag::UNKNOWN;
+}
+
+static inline bool isUnknownAudioSource(const std::string& source) {
+    return stringToAudioSource(source) == AudioSource::UNKNOWN;
+}
+
+static inline bool isUnknownAudioStreamType(const std::string& streamType) {
+    return stringToAudioStreamType(streamType) == AudioStreamType::UNKNOWN;
+}
+
+static inline bool isUnknownAudioUsage(const std::string& usage) {
+    return stringToAudioUsage(usage) == AudioUsage::UNKNOWN;
+}
+
+static inline bool isLinearPcm(AudioFormat format) {
+    switch (format) {
+        case AudioFormat::AUDIO_FORMAT_PCM_16_BIT:
+        case AudioFormat::AUDIO_FORMAT_PCM_8_BIT:
+        case AudioFormat::AUDIO_FORMAT_PCM_32_BIT:
+        case AudioFormat::AUDIO_FORMAT_PCM_8_24_BIT:
+        case AudioFormat::AUDIO_FORMAT_PCM_FLOAT:
+        case AudioFormat::AUDIO_FORMAT_PCM_24_BIT_PACKED:
+            return true;
+        default:
+            return false;
+    }
+}
+
+static inline bool isLinearPcm(const std::string& format) {
+    return isLinearPcm(stringToAudioFormat(format));
+}
+
+static inline bool isUnknownAudioEncapsulationType(const std::string& encapsulationType) {
+    return stringToAudioEncapsulationType(encapsulationType) == AudioEncapsulationType::UNKNOWN;
+}
+
+}  // namespace android::audio::policy::configuration::V7_1
+
+#endif  // ANDROID_AUDIO_POLICY_CONFIGURATION_V7_1__ENUMS_H
diff --git a/audio/common/all-versions/default/7.0/HidlUtils.cpp b/audio/common/all-versions/default/7.0/HidlUtils.cpp
index 5a5b5d2..0fd2947 100644
--- a/audio/common/all-versions/default/7.0/HidlUtils.cpp
+++ b/audio/common/all-versions/default/7.0/HidlUtils.cpp
@@ -21,7 +21,7 @@
 #define LOG_TAG "HidlUtils"
 #include <log/log.h>
 
-#include <android_audio_policy_configuration_V7_0-enums.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
 #include <common/all-versions/HidlSupport.h>
 #include <common/all-versions/VersionUtils.h>
 
@@ -31,11 +31,11 @@
 namespace hardware {
 namespace audio {
 namespace common {
-namespace CPP_VERSION {
+namespace COMMON_TYPES_CPP_VERSION {
 namespace implementation {
 
 namespace xsd {
-using namespace ::android::audio::policy::configuration::V7_0;
+using namespace ::android::audio::policy::configuration::CPP_VERSION;
 }
 
 #define CONVERT_CHECKED(expr, result)                   \
@@ -485,8 +485,12 @@
 status_t HidlUtils::audioUsageFromHal(audio_usage_t halUsage, AudioUsage* usage) {
     if (halUsage == AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST ||
         halUsage == AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT ||
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+        halUsage == AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED) {
+#else
         halUsage == AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED ||
         halUsage == AUDIO_USAGE_NOTIFICATION_EVENT) {
+#endif
         halUsage = AUDIO_USAGE_NOTIFICATION;
     }
     *usage = audio_usage_to_string(halUsage);
@@ -1151,7 +1155,7 @@
 }
 
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace COMMON_TYPES_CPP_VERSION
 }  // namespace common
 }  // namespace audio
 }  // namespace hardware
diff --git a/audio/common/all-versions/default/Android.bp b/audio/common/all-versions/default/Android.bp
index 8f55744..9543674 100644
--- a/audio/common/all-versions/default/Android.bp
+++ b/audio/common/all-versions/default/Android.bp
@@ -157,6 +157,28 @@
     ],
 }
 
+cc_library {
+    name: "android.hardware.audio.common@7.1-util",
+    defaults: ["android.hardware.audio.common-util_default"],
+    srcs: [
+        "7.0/HidlUtils.cpp",
+        "HidlUtilsCommon.cpp",
+        "UuidUtils.cpp",
+    ],
+    shared_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.1-enums",
+        "libbase",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
+        "-DCOMMON_TYPES_MINOR_VERSION=0",
+        "-DCORE_TYPES_MINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
 // Note: this isn't a VTS test, but rather a unit test
 // to verify correctness of conversion utilities.
 cc_test {
@@ -189,6 +211,8 @@
     name: "android.hardware.audio.common@7.0-util_tests",
     defaults: ["android.hardware.audio.common-util_default"],
 
+    tidy_timeout_srcs: ["tests/hidlutils_tests.cpp"],
+
     srcs: ["tests/hidlutils_tests.cpp"],
 
     // Use static linking to allow running in presubmit on
@@ -214,3 +238,37 @@
 
     test_suites: ["device-tests"],
 }
+
+cc_test {
+    name: "android.hardware.audio.common@7.1-util_tests",
+    defaults: ["android.hardware.audio.common-util_default"],
+
+    tidy_timeout_srcs: ["tests/hidlutils_tests.cpp"],
+
+    srcs: ["tests/hidlutils_tests.cpp"],
+
+    // Use static linking to allow running in presubmit on
+    // targets that don't have HAL V7.1.
+    static_libs: [
+        "android.hardware.audio.common@7.1-enums",
+        "android.hardware.audio.common@7.1-util",
+        "android.hardware.audio.common@7.0",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "libxml2",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
+        "-DCOMMON_TYPES_MINOR_VERSION=0",
+        "-DCORE_TYPES_MINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+
+    test_suites: ["device-tests"],
+}
diff --git a/audio/common/all-versions/default/HidlUtils.h b/audio/common/all-versions/default/HidlUtils.h
index 98ecc07..ad9dee2 100644
--- a/audio/common/all-versions/default/HidlUtils.h
+++ b/audio/common/all-versions/default/HidlUtils.h
@@ -17,7 +17,9 @@
 #ifndef android_hardware_audio_Hidl_Utils_H_
 #define android_hardware_audio_Hidl_Utils_H_
 
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+// clang-format off
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
+// clang-format on
 
 #include <memory>
 #include <string>
@@ -29,11 +31,11 @@
 namespace hardware {
 namespace audio {
 namespace common {
-namespace CPP_VERSION {
+namespace COMMON_TYPES_CPP_VERSION {
 namespace implementation {
 
 using ::android::hardware::hidl_vec;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 
 struct HidlUtils {
     static status_t audioConfigFromHal(const audio_config_t& halConfig, bool isInput,
@@ -267,7 +269,7 @@
 #endif  // MAJOR_VERSION <= 6
 
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace COMMON_TYPES_CPP_VERSION
 }  // namespace common
 }  // namespace audio
 }  // namespace hardware
diff --git a/audio/common/all-versions/default/HidlUtilsCommon.cpp b/audio/common/all-versions/default/HidlUtilsCommon.cpp
index d2da193..bc3d870 100644
--- a/audio/common/all-versions/default/HidlUtilsCommon.cpp
+++ b/audio/common/all-versions/default/HidlUtilsCommon.cpp
@@ -20,7 +20,7 @@
 namespace hardware {
 namespace audio {
 namespace common {
-namespace CPP_VERSION {
+namespace COMMON_TYPES_CPP_VERSION {
 namespace implementation {
 
 status_t HidlUtils::audioPortConfigsFromHal(unsigned int numHalConfigs,
@@ -51,7 +51,7 @@
 }
 
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace COMMON_TYPES_CPP_VERSION
 }  // namespace common
 }  // namespace audio
 }  // namespace hardware
diff --git a/audio/common/all-versions/default/TEST_MAPPING b/audio/common/all-versions/default/TEST_MAPPING
index c965113..780beea 100644
--- a/audio/common/all-versions/default/TEST_MAPPING
+++ b/audio/common/all-versions/default/TEST_MAPPING
@@ -5,6 +5,9 @@
     },
     {
       "name": "android.hardware.audio.common@7.0-util_tests"
+    },
+    {
+      "name": "android.hardware.audio.common@7.1-util_tests"
     }
   ]
 }
diff --git a/audio/common/all-versions/default/UuidUtils.h b/audio/common/all-versions/default/UuidUtils.h
index cd04fb0..4a64f0a 100644
--- a/audio/common/all-versions/default/UuidUtils.h
+++ b/audio/common/all-versions/default/UuidUtils.h
@@ -20,7 +20,7 @@
 #include <string>
 
 // clang-format off
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
 #include <system/audio.h>
@@ -32,7 +32,7 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 
 class UuidUtils {
   public:
diff --git a/audio/common/all-versions/default/VersionUtils.h b/audio/common/all-versions/default/VersionUtils.h
index 9bfca0c..9771374 100644
--- a/audio/common/all-versions/default/VersionUtils.h
+++ b/audio/common/all-versions/default/VersionUtils.h
@@ -17,7 +17,30 @@
 #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)
+// A workaround for b/216149583 (vendor code having its own copy of VersionMacro.h)
+#ifndef COMMON_TYPES_MINOR_VERSION
+#define COMMON_TYPES_MINOR_VERSION MINOR_VERSION
+#endif
+#ifndef CORE_TYPES_MINOR_VERSION
+#define CORE_TYPES_MINOR_VERSION MINOR_VERSION
+#endif
+#ifndef COMMON_TYPES_FILE_VERSION
+#define COMMON_TYPES_FILE_VERSION EXPAND_CONCAT_3(MAJOR_VERSION, ., COMMON_TYPES_MINOR_VERSION)
+#endif
+#ifndef CORE_TYPES_FILE_VERSION
+#define CORE_TYPES_FILE_VERSION EXPAND_CONCAT_3(MAJOR_VERSION, ., CORE_TYPES_MINOR_VERSION)
+#endif
+#ifndef COMMON_TYPES_CPP_VERSION
+#define COMMON_TYPES_CPP_VERSION EXPAND_CONCAT_4(V, MAJOR_VERSION, _, COMMON_TYPES_MINOR_VERSION)
+#endif
+#ifndef CORE_TYPES_CPP_VERSION
+#define CORE_TYPES_CPP_VERSION EXPAND_CONCAT_4(V, MAJOR_VERSION, _, CORE_TYPES_MINOR_VERSION)
+#endif
+// End of workaround
+
+// clang-format off
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
+// clang-format on
 
 namespace android {
 namespace hardware {
diff --git a/audio/common/all-versions/default/service/Android.bp b/audio/common/all-versions/default/service/Android.bp
index 1bd6abe..9890be2 100644
--- a/audio/common/all-versions/default/service/Android.bp
+++ b/audio/common/all-versions/default/service/Android.bp
@@ -52,6 +52,7 @@
     shared_libs: [
         "libcutils",
         "libbinder",
+        "libbinder_ndk",
         "libhidlbase",
         "liblog",
         "libutils",
diff --git a/audio/common/all-versions/default/service/service.cpp b/audio/common/all-versions/default/service/service.cpp
index 89585b0..fbf6165 100644
--- a/audio/common/all-versions/default/service/service.cpp
+++ b/audio/common/all-versions/default/service/service.cpp
@@ -20,8 +20,10 @@
 #include <string>
 #include <vector>
 
+#include <android/binder_process.h>
 #include <binder/ProcessState.h>
 #include <cutils/properties.h>
+#include <dlfcn.h>
 #include <hidl/HidlTransportSupport.h>
 #include <hidl/LegacySupport.h>
 #include <hwbinder/ProcessState.h>
@@ -45,6 +47,31 @@
     return false;
 }
 
+static bool registerExternalServiceImplementation(const std::string& libName,
+                                                  const std::string& funcName) {
+    constexpr int dlMode = RTLD_LAZY;
+    void* handle = nullptr;
+    dlerror();  // clear
+    auto libPath = libName + ".so";
+    handle = dlopen(libPath.c_str(), dlMode);
+    if (handle == nullptr) {
+        const char* error = dlerror();
+        ALOGE("Failed to dlopen %s: %s", libPath.c_str(),
+              error != nullptr ? error : "unknown error");
+        return false;
+    }
+    binder_status_t (*factoryFunction)();
+    *(void**)(&factoryFunction) = dlsym(handle, funcName.c_str());
+    if (!factoryFunction) {
+        const char* error = dlerror();
+        ALOGE("Factory function %s not found in libName %s: %s", funcName.c_str(), libPath.c_str(),
+              error != nullptr ? error : "unknown error");
+        dlclose(handle);
+        return false;
+    }
+    return ((*factoryFunction)() == STATUS_OK);
+}
+
 int main(int /* argc */, char* /* argv */ []) {
     signal(SIGPIPE, SIG_IGN);
 
@@ -52,6 +79,9 @@
     // start a threadpool for vndbinder interactions
     ::android::ProcessState::self()->startThreadPool();
 
+    ABinderProcess_setThreadPoolMaxThreadCount(1);
+    ABinderProcess_startThreadPool();
+
     const int32_t defaultValue = -1;
     int32_t value =
         property_get_int32("persist.vendor.audio.service.hwbinder.size_kbyte", defaultValue);
@@ -66,6 +96,7 @@
     const std::vector<InterfacesList> mandatoryInterfaces = {
         {
             "Audio Core API",
+            "android.hardware.audio@7.1::IDevicesFactory",
             "android.hardware.audio@7.0::IDevicesFactory",
             "android.hardware.audio@6.0::IDevicesFactory",
             "android.hardware.audio@5.0::IDevicesFactory",
@@ -100,6 +131,13 @@
             "android.hardware.bluetooth.a2dp@1.0::IBluetoothAudioOffload"
         }
     };
+
+    const std::vector<std::pair<std::string,std::string>> optionalInterfaceSharedLibs = {
+        {
+            "android.hardware.bluetooth.audio-impl",
+            "createIBluetoothAudioProviderFactory",
+        },
+    };
     // clang-format on
 
     for (const auto& listIter : mandatoryInterfaces) {
@@ -116,5 +154,15 @@
                  "Could not register %s", interfaceFamilyName.c_str());
     }
 
+    for (const auto& interfacePair : optionalInterfaceSharedLibs) {
+        const std::string& libraryName = interfacePair.first;
+        const std::string& interfaceLoaderFuncName = interfacePair.second;
+        if (registerExternalServiceImplementation(libraryName, interfaceLoaderFuncName)) {
+            ALOGI("%s() from %s success", interfaceLoaderFuncName.c_str(), libraryName.c_str());
+        } else {
+            ALOGW("%s() from %s failed", interfaceLoaderFuncName.c_str(), libraryName.c_str());
+        }
+    }
+
     joinRpcThreadpool();
 }
diff --git a/audio/common/all-versions/default/tests/hidlutils6_tests.cpp b/audio/common/all-versions/default/tests/hidlutils6_tests.cpp
index 3a24e75..ca59b9d 100644
--- a/audio/common/all-versions/default/tests/hidlutils6_tests.cpp
+++ b/audio/common/all-versions/default/tests/hidlutils6_tests.cpp
@@ -23,14 +23,14 @@
 #include <system/audio.h>
 
 using namespace android;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 
 // Not generated automatically because DeviceAddress contains
 // an union.
 //
 // operator== must be defined in the same namespace as the data type.
-namespace android::hardware::audio::common::CPP_VERSION {
+namespace android::hardware::audio::common::COMMON_TYPES_CPP_VERSION {
 
 inline bool operator==(const DeviceAddress& lhs, const DeviceAddress& rhs) {
     if (lhs.device != rhs.device) return false;
@@ -49,7 +49,7 @@
     return lhs.busAddress == rhs.busAddress;
 }
 
-}  // namespace android::hardware::audio::common::CPP_VERSION
+}  // namespace android::hardware::audio::common::COMMON_TYPES_CPP_VERSION
 
 static void ConvertDeviceAddress(const DeviceAddress& device) {
     audio_devices_t halDeviceType;
diff --git a/audio/common/all-versions/default/tests/hidlutils_tests.cpp b/audio/common/all-versions/default/tests/hidlutils_tests.cpp
index c9e6fac..ec16b02 100644
--- a/audio/common/all-versions/default/tests/hidlutils_tests.cpp
+++ b/audio/common/all-versions/default/tests/hidlutils_tests.cpp
@@ -23,16 +23,16 @@
 #include <log/log.h>
 
 #include <HidlUtils.h>
-#include <android_audio_policy_configuration_V7_0-enums.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
 #include <system/audio.h>
 #include <xsdc/XsdcSupport.h>
 
 using namespace android;
 using ::android::hardware::hidl_vec;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 namespace xsd {
-using namespace ::android::audio::policy::configuration::V7_0;
+using namespace ::android::audio::policy::configuration::CPP_VERSION;
 }
 
 static constexpr audio_channel_mask_t kInvalidHalChannelMask = AUDIO_CHANNEL_INVALID;
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
index dc54cee..875e167 100644
--- a/audio/common/all-versions/util/include/common/all-versions/VersionMacro.h
+++ b/audio/common/all-versions/util/include/common/all-versions/VersionMacro.h
@@ -21,6 +21,14 @@
 #error "MAJOR_VERSION and MINOR_VERSION must be defined"
 #endif
 
+#ifndef COMMON_TYPES_MINOR_VERSION
+#define COMMON_TYPES_MINOR_VERSION MINOR_VERSION
+#endif
+
+#ifndef CORE_TYPES_MINOR_VERSION
+#define CORE_TYPES_MINOR_VERSION MINOR_VERSION
+#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 "
@@ -34,10 +42,30 @@
 #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 COMMON_TYPES_FILE_VERSION EXPAND_CONCAT_3(MAJOR_VERSION, ., COMMON_TYPES_MINOR_VERSION)
+#define CORE_TYPES_FILE_VERSION EXPAND_CONCAT_3(MAJOR_VERSION, ., CORE_TYPES_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)
+#define COMMON_TYPES_CPP_VERSION EXPAND_CONCAT_4(V, MAJOR_VERSION, _, COMMON_TYPES_MINOR_VERSION)
+#define CORE_TYPES_CPP_VERSION EXPAND_CONCAT_4(V, MAJOR_VERSION, _, CORE_TYPES_MINOR_VERSION)
+
+/* Gluing these file names from macros is non-trivial due to "illegal tokens"
+   occurring during expansion. The XSD and enums always use the minor version. */
+// clang-format off
+#if MAJOR_VERSION >= 7
+#if MINOR_VERSION == 0
+#define APM_XSD_H_FILENAME android_audio_policy_configuration_V7_0.h
+#define APM_XSD_ENUMS_H_FILENAME android_audio_policy_configuration_V7_0-enums.h
+#elif MINOR_VERSION == 1
+#define APM_XSD_H_FILENAME android_audio_policy_configuration_V7_1.h
+#define APM_XSD_ENUMS_H_FILENAME android_audio_policy_configuration_V7_1-enums.h
+#else
+#error "Unsupported minor version"
+#endif
+#endif
+// clang-format on
 
 #endif  // ANDROID_HARDWARE_VERSION_MACRO_H
diff --git a/audio/core/all-versions/default/Android.bp b/audio/core/all-versions/default/Android.bp
index 8fb7111..3536561 100644
--- a/audio/core/all-versions/default/Android.bp
+++ b/audio/core/all-versions/default/Android.bp
@@ -48,6 +48,8 @@
         "libhidlbase",
         "liblog",
         "libmedia_helper",
+        "libmediautils_vendor",
+        "libmemunreachable",
         "libutils",
         "android.hardware.audio.common-util",
     ],
@@ -159,3 +161,29 @@
     name: "android.hardware.audio@7.0-impl",
     defaults: ["android.hardware.audio@7.0-impl_default"],
 }
+
+cc_defaults {
+    name: "android.hardware.audio@7.1-impl_default",
+    defaults: ["android.hardware.audio-impl_default"],
+    shared_libs: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio@7.1",
+        "android.hardware.audio@7.1-util",
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.1-enums",
+        "android.hardware.audio.common@7.1-util",
+        "libbase",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
+        "-DCOMMON_TYPES_MINOR_VERSION=0",
+        "-DCORE_TYPES_MINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio@7.1-impl",
+    defaults: ["android.hardware.audio@7.1-impl_default"],
+}
diff --git a/audio/core/all-versions/default/Device.cpp b/audio/core/all-versions/default/Device.cpp
index 130dfba..b954fcd 100644
--- a/audio/core/all-versions/default/Device.cpp
+++ b/audio/core/all-versions/default/Device.cpp
@@ -30,6 +30,8 @@
 #include <algorithm>
 
 #include <android/log.h>
+#include <mediautils/MemoryLeakTrackUtil.h>
+#include <memunreachable/memunreachable.h>
 
 #include <HidlUtils.h>
 
@@ -39,7 +41,10 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
+namespace util {
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
+}
 
 Device::Device(audio_hw_device_t* device) : mIsClosed(false), mDevice(device) {}
 
@@ -82,7 +87,7 @@
     if (mDevice->set_master_volume == NULL) {
         return Result::NOT_SUPPORTED;
     }
-    if (!isGainNormalized(volume)) {
+    if (!util::isGainNormalized(volume)) {
         ALOGW("Can not set a master volume (%f) outside [0,1]", volume);
         return Result::INVALID_ARGUMENTS;
     }
@@ -148,7 +153,7 @@
     return Void();
 }
 
-std::tuple<Result, sp<IStreamOut>> Device::openOutputStreamImpl(int32_t ioHandle,
+std::tuple<Result, sp<IStreamOut>> Device::openOutputStreamCore(int32_t ioHandle,
                                                                 const DeviceAddress& device,
                                                                 const AudioConfig& config,
                                                                 const AudioOutputFlags& flags,
@@ -185,7 +190,7 @@
     return {analyzeStatus("open_output_stream", status, {EINVAL} /*ignore*/), streamOut};
 }
 
-std::tuple<Result, sp<IStreamIn>> Device::openInputStreamImpl(
+std::tuple<Result, sp<IStreamIn>> Device::openInputStreamCore(
         int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
         const AudioInputFlags& flags, AudioSource source, AudioConfig* suggestedConfig) {
     audio_config_t halConfig;
@@ -228,7 +233,7 @@
                                       openOutputStream_cb _hidl_cb) {
     AudioConfig suggestedConfig;
     auto [result, streamOut] =
-        openOutputStreamImpl(ioHandle, device, config, flags, &suggestedConfig);
+            openOutputStreamCore(ioHandle, device, config, flags, &suggestedConfig);
     _hidl_cb(result, streamOut, suggestedConfig);
     return Void();
 }
@@ -238,12 +243,36 @@
                                      AudioSource source, openInputStream_cb _hidl_cb) {
     AudioConfig suggestedConfig;
     auto [result, streamIn] =
-        openInputStreamImpl(ioHandle, device, config, flags, source, &suggestedConfig);
+            openInputStreamCore(ioHandle, device, config, flags, source, &suggestedConfig);
     _hidl_cb(result, streamIn, suggestedConfig);
     return Void();
 }
 
 #elif MAJOR_VERSION >= 4
+std::tuple<Result, sp<IStreamOut>, AudioConfig> Device::openOutputStreamImpl(
+        int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
+        const SourceMetadata& sourceMetadata,
+#if MAJOR_VERSION <= 6
+        AudioOutputFlags flags) {
+    if (status_t status = CoreUtils::sourceMetadataToHal(sourceMetadata, nullptr);
+        status != NO_ERROR) {
+#else
+        const AudioOutputFlags& flags) {
+    if (status_t status = CoreUtils::sourceMetadataToHalV7(sourceMetadata,
+                                                           false /*ignoreNonVendorTags*/, nullptr);
+        status != NO_ERROR) {
+#endif
+        return {analyzeStatus("sourceMetadataToHal", status), nullptr, {}};
+    }
+    AudioConfig suggestedConfig;
+    auto [result, streamOut] =
+            openOutputStreamCore(ioHandle, device, config, flags, &suggestedConfig);
+    if (streamOut) {
+        streamOut->updateSourceMetadata(sourceMetadata);
+    }
+    return {result, streamOut, suggestedConfig};
+}
+
 Return<void> Device::openOutputStream(int32_t ioHandle, const DeviceAddress& device,
                                       const AudioConfig& config,
 #if MAJOR_VERSION <= 6
@@ -253,27 +282,46 @@
 #endif
                                       const SourceMetadata& sourceMetadata,
                                       openOutputStream_cb _hidl_cb) {
-#if MAJOR_VERSION <= 6
-    if (status_t status = CoreUtils::sourceMetadataToHal(sourceMetadata, nullptr);
-        status != NO_ERROR) {
-#else
-    if (status_t status = CoreUtils::sourceMetadataToHalV7(sourceMetadata,
-                                                           false /*ignoreNonVendorTags*/, nullptr);
-        status != NO_ERROR) {
-#endif
-        _hidl_cb(analyzeStatus("sourceMetadataToHal", status), nullptr, AudioConfig{});
-        return Void();
-    }
-    AudioConfig suggestedConfig;
-    auto [result, streamOut] =
-        openOutputStreamImpl(ioHandle, device, config, flags, &suggestedConfig);
-    if (streamOut) {
-        streamOut->updateSourceMetadata(sourceMetadata);
-    }
+    auto [result, streamOut, suggestedConfig] =
+            openOutputStreamImpl(ioHandle, device, config, sourceMetadata, flags);
     _hidl_cb(result, streamOut, suggestedConfig);
     return Void();
 }
 
+std::tuple<Result, sp<IStreamIn>, AudioConfig> Device::openInputStreamImpl(
+        int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
+#if MAJOR_VERSION <= 6
+        AudioInputFlags flags,
+#else
+        const AudioInputFlags& flags,
+#endif
+        const SinkMetadata& sinkMetadata) {
+    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");
+        return {Result::INVALID_ARGUMENTS, nullptr, AudioConfig{}};
+    }
+#if MAJOR_VERSION <= 6
+    if (status_t status = CoreUtils::sinkMetadataToHal(sinkMetadata, nullptr); status != NO_ERROR) {
+#else
+    if (status_t status = CoreUtils::sinkMetadataToHalV7(sinkMetadata,
+                                                         false /*ignoreNonVendorTags*/, nullptr);
+        status != NO_ERROR) {
+#endif
+        return {analyzeStatus("sinkMetadataToHal", status), nullptr, AudioConfig{}};
+    }
+    // Pick the first one as the main.
+    AudioSource source = sinkMetadata.tracks[0].source;
+    AudioConfig suggestedConfig;
+    auto [result, streamIn] =
+            openInputStreamCore(ioHandle, device, config, flags, source, &suggestedConfig);
+    if (streamIn) {
+        streamIn->updateSinkMetadata(sinkMetadata);
+    }
+    return {result, streamIn, suggestedConfig};
+}
+
 Return<void> Device::openInputStream(int32_t ioHandle, const DeviceAddress& device,
                                      const AudioConfig& config,
 #if MAJOR_VERSION <= 6
@@ -283,36 +331,25 @@
 #endif
                                      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();
-    }
-#if MAJOR_VERSION <= 6
-    if (status_t status = CoreUtils::sinkMetadataToHal(sinkMetadata, nullptr); status != NO_ERROR) {
-#else
-    if (status_t status = CoreUtils::sinkMetadataToHalV7(sinkMetadata,
-                                                         false /*ignoreNonVendorTags*/, nullptr);
-        status != NO_ERROR) {
-#endif
-        _hidl_cb(analyzeStatus("sinkMetadataToHal", status), 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);
-    }
+    auto [result, streamIn, suggestedConfig] =
+            openInputStreamImpl(ioHandle, device, config, flags, sinkMetadata);
     _hidl_cb(result, streamIn, suggestedConfig);
     return Void();
 }
 #endif /* MAJOR_VERSION */
 
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+Return<void> Device::openOutputStream_7_1(int32_t ioHandle, const DeviceAddress& device,
+                                          const AudioConfig& config, const AudioOutputFlags& flags,
+                                          const SourceMetadata& sourceMetadata,
+                                          openOutputStream_7_1_cb _hidl_cb) {
+    auto [result, streamOut, suggestedConfig] =
+            openOutputStreamImpl(ioHandle, device, config, sourceMetadata, flags);
+    _hidl_cb(result, streamOut, suggestedConfig);
+    return Void();
+}
+#endif  // V7.1
+
 Return<bool> Device::supportsAudioPatches() {
     return version() >= AUDIO_DEVICE_API_VERSION_3_0;
 }
@@ -456,9 +493,32 @@
 }
 #endif
 
-Return<void> Device::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
+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]));
+        const int fd0 = fd->data[0];
+        bool dumpMem = false;
+        bool unreachableMemory = false;
+        for (const auto& option : options) {
+            if (option == "-m") {
+                dumpMem = true;
+            } else if (option == "--unreachable") {
+                unreachableMemory = true;
+            }
+        }
+
+        if (dumpMem) {
+            dprintf(fd0, "\nDumping memory:\n");
+            std::string s = dumpMemoryAddresses(100 /* limit */);
+            write(fd0, s.c_str(), s.size());
+        }
+        if (unreachableMemory) {
+            dprintf(fd0, "\nDumping unreachable memory:\n");
+            // TODO - should limit be an argument parameter?
+            std::string s = GetUnreachableMemoryString(true /* contents */, 100 /* limit */);
+            write(fd0, s.c_str(), s.size());
+        }
+
+        analyzeStatus("dump", mDevice->dump(mDevice, fd0));
     }
     return Void();
 }
@@ -546,6 +606,21 @@
 
 #endif
 
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+Return<Result> Device::setConnectedState_7_1(const AudioPort& devicePort, bool connected) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_2 &&
+        mDevice->set_device_connected_state_v7 != nullptr) {
+        audio_port_v7 halPort;
+        if (status_t status = HidlUtils::audioPortToHal(devicePort, &halPort); status != NO_ERROR) {
+            return analyzeStatus("audioPortToHal", status);
+        }
+        return analyzeStatus("set_device_connected_state_v7",
+                             mDevice->set_device_connected_state_v7(mDevice, &halPort, connected));
+    }
+    return Result::NOT_SUPPORTED;
+}
+#endif
+
 }  // namespace implementation
 }  // namespace CPP_VERSION
 }  // namespace audio
diff --git a/audio/core/all-versions/default/DevicesFactory.cpp b/audio/core/all-versions/default/DevicesFactory.cpp
index 729f18c..f44daf0 100644
--- a/audio/core/all-versions/default/DevicesFactory.cpp
+++ b/audio/core/all-versions/default/DevicesFactory.cpp
@@ -47,22 +47,54 @@
     _hidl_cb(Result::INVALID_ARGUMENTS, nullptr);
     return Void();
 }
+
+Return<void> DevicesFactory::openDevice(const char* moduleName, openDevice_cb _hidl_cb) {
+    return openDevice<implementation::Device>(moduleName, _hidl_cb);
+}
 #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 openDevice<implementation::Device>(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);
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+Return<void> DevicesFactory::openDevice_7_1(const hidl_string& moduleName,
+                                            openDevice_7_1_cb _hidl_cb) {
+    if (moduleName == AUDIO_HARDWARE_MODULE_ID_PRIMARY) {
+        Result result;
+        sp<IPrimaryDevice> primary;
+        auto ret = openDevice<PrimaryDevice>(
+                AUDIO_HARDWARE_MODULE_ID_PRIMARY,
+                [&result, &primary](Result r, const sp<IPrimaryDevice>& p) {
+                    result = r;
+                    primary = p;
+                });
+        if (ret.isOk() && result == Result::OK && primary != nullptr) {
+            auto getDeviceRet = primary->getDevice();
+            if (getDeviceRet.isOk()) {
+                _hidl_cb(result, getDeviceRet);
+            } else {
+                _hidl_cb(Result::NOT_INITIALIZED, nullptr);
+            }
+        } else {
+            _hidl_cb(result, nullptr);
+        }
+        return Void();
+    }
+    return openDevice<implementation::Device>(moduleName.c_str(), _hidl_cb);
 }
 
+Return<void> DevicesFactory::openPrimaryDevice_7_1(openPrimaryDevice_7_1_cb _hidl_cb) {
+    return openDevice<PrimaryDevice>(AUDIO_HARDWARE_MODULE_ID_PRIMARY, _hidl_cb);
+}
+#endif  // V7.1
+
 template <class DeviceShim, class Callback>
 Return<void> DevicesFactory::openDevice(const char* moduleName, Callback _hidl_cb) {
     audio_hw_device_t* halDevice;
diff --git a/audio/core/all-versions/default/ParametersUtil.cpp b/audio/core/all-versions/default/ParametersUtil.cpp
index 4d53645..e21eff2 100644
--- a/audio/core/all-versions/default/ParametersUtil.cpp
+++ b/audio/core/all-versions/default/ParametersUtil.cpp
@@ -24,7 +24,7 @@
 namespace android {
 namespace hardware {
 namespace audio {
-namespace CPP_VERSION {
+namespace CORE_TYPES_CPP_VERSION {
 namespace implementation {
 
 /** Converts a status_t in Result according to the rules of AudioParameter::get*
@@ -168,7 +168,7 @@
 }
 
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace CORE_TYPES_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
index fe56177..cf162f1 100644
--- a/audio/core/all-versions/default/PrimaryDevice.cpp
+++ b/audio/core/all-versions/default/PrimaryDevice.cpp
@@ -29,6 +29,10 @@
 namespace CPP_VERSION {
 namespace implementation {
 
+namespace util {
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
+}
+
 PrimaryDevice::PrimaryDevice(audio_hw_device_t* device) : mDevice(new Device(device)) {}
 
 PrimaryDevice::~PrimaryDevice() {
@@ -195,7 +199,7 @@
 
 // Methods from ::android::hardware::audio::CPP_VERSION::IPrimaryDevice follow.
 Return<Result> PrimaryDevice::setVoiceVolume(float volume) {
-    if (!isGainNormalized(volume)) {
+    if (!util::isGainNormalized(volume)) {
         ALOGW("Can not set a voice volume (%f) outside [0,1]", volume);
         return Result::INVALID_ARGUMENTS;
     }
@@ -326,7 +330,7 @@
     return mDevice->setParam(AUDIO_PARAMETER_KEY_HFP_SET_SAMPLING_RATE, int(sampleRateHz));
 }
 Return<Result> PrimaryDevice::setBtHfpVolume(float volume) {
-    if (!isGainNormalized(volume)) {
+    if (!util::isGainNormalized(volume)) {
         ALOGW("Can not set BT HFP volume (%f) outside [0,1]", volume);
         return Result::INVALID_ARGUMENTS;
     }
diff --git a/audio/core/all-versions/default/Stream.cpp b/audio/core/all-versions/default/Stream.cpp
index 7e32573..8e85a8b 100644
--- a/audio/core/all-versions/default/Stream.cpp
+++ b/audio/core/all-versions/default/Stream.cpp
@@ -37,8 +37,12 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 using ::android::hardware::audio::common::utils::splitString;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
+namespace util {
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
+}
 
 Stream::Stream(bool isInput, audio_stream_t* stream) : mIsInput(isInput), mStream(stream) {
     (void)mIsInput;  // prevent 'unused field' warnings in pre-V7 versions.
diff --git a/audio/core/all-versions/default/StreamIn.cpp b/audio/core/all-versions/default/StreamIn.cpp
index 2aeee43..2bea425 100644
--- a/audio/core/all-versions/default/StreamIn.cpp
+++ b/audio/core/all-versions/default/StreamIn.cpp
@@ -37,7 +37,11 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
+namespace util {
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
+}
 
 namespace {
 
@@ -348,7 +352,7 @@
 }
 
 Return<Result> StreamIn::setGain(float gain) {
-    if (!isGainNormalized(gain)) {
+    if (!util::isGainNormalized(gain)) {
         ALOGW("Can not set a stream input gain (%f) outside [0,1]", gain);
         return Result::INVALID_ARGUMENTS;
     }
diff --git a/audio/core/all-versions/default/StreamOut.cpp b/audio/core/all-versions/default/StreamOut.cpp
index d027231..09df4ed 100644
--- a/audio/core/all-versions/default/StreamOut.cpp
+++ b/audio/core/all-versions/default/StreamOut.cpp
@@ -39,7 +39,11 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
+namespace util {
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
+}
 
 namespace {
 
@@ -334,7 +338,7 @@
     if (mStream->set_volume == NULL) {
         return Result::NOT_SUPPORTED;
     }
-    if (!isGainNormalized(left)) {
+    if (!util::isGainNormalized(left)) {
         ALOGW("Can not set a stream output volume {%f, %f} outside [0,1]", left, right);
         return Result::INVALID_ARGUMENTS;
     }
@@ -757,6 +761,73 @@
     ALOGW_IF(!result.isOk(), "Client callback failed: %s", result.description().c_str());
     return 0;
 }
+
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+Return<Result> StreamOut::setLatencyMode(LatencyMode mode) {
+    return mStream->set_latency_mode != nullptr
+                   ? Stream::analyzeStatus(
+                             "set_latency_mode",
+                             mStream->set_latency_mode(mStream,
+                                                       static_cast<audio_latency_mode_t>(mode)))
+                   : Result::NOT_SUPPORTED;
+};
+
+Return<void> StreamOut::getRecommendedLatencyModes(getRecommendedLatencyModes_cb _hidl_cb) {
+    Result retval = Result::NOT_SUPPORTED;
+    hidl_vec<LatencyMode> hidlModes;
+    size_t num_modes = AUDIO_LATENCY_MODE_CNT;
+    audio_latency_mode_t modes[AUDIO_LATENCY_MODE_CNT];
+
+    if (mStream->get_recommended_latency_modes != nullptr &&
+        mStream->get_recommended_latency_modes(mStream, &modes[0], &num_modes) == 0) {
+        if (num_modes == 0 || num_modes > AUDIO_LATENCY_MODE_CNT) {
+            ALOGW("%s invalid number of modes returned: %zu", __func__, num_modes);
+            retval = Result::INVALID_STATE;
+        } else {
+            hidlModes.resize(num_modes);
+            for (size_t i = 0; i < num_modes; ++i) {
+                hidlModes[i] = static_cast<LatencyMode>(modes[i]);
+            }
+            retval = Result::OK;
+        }
+    }
+    _hidl_cb(retval, hidlModes);
+    return Void();
+};
+
+// static
+void StreamOut::latencyModeCallback(audio_latency_mode_t* modes, size_t num_modes, void* cookie) {
+    StreamOut* self = reinterpret_cast<StreamOut*>(cookie);
+    sp<IStreamOutLatencyModeCallback> callback = self->mLatencyModeCallback.load();
+    if (callback.get() == nullptr) return;
+
+    ALOGV("%s", __func__);
+
+    if (num_modes == 0 || num_modes > AUDIO_LATENCY_MODE_CNT) {
+        ALOGW("%s invalid number of modes returned: %zu", __func__, num_modes);
+        return;
+    }
+
+    hidl_vec<LatencyMode> hidlModes(num_modes);
+    for (size_t i = 0; i < num_modes; ++i) {
+        hidlModes[i] = static_cast<LatencyMode>(modes[i]);
+    }
+    Return<void> result = callback->onRecommendedLatencyModeChanged(hidlModes);
+    ALOGW_IF(!result.isOk(), "Client callback failed: %s", result.description().c_str());
+}
+
+Return<Result> StreamOut::setLatencyModeCallback(
+        const sp<IStreamOutLatencyModeCallback>& callback) {
+    if (mStream->set_latency_mode_callback == nullptr) return Result::NOT_SUPPORTED;
+    int result = mStream->set_latency_mode_callback(mStream, StreamOut::latencyModeCallback, this);
+    if (result == 0) {
+        mLatencyModeCallback = callback;
+    }
+    return Stream::analyzeStatus("set_latency_mode_callback", result, {ENOSYS} /*ignore*/);
+};
+
+#endif
+
 #endif
 
 }  // namespace implementation
diff --git a/audio/core/all-versions/default/TEST_MAPPING b/audio/core/all-versions/default/TEST_MAPPING
index 1e29440..07e98f3 100644
--- a/audio/core/all-versions/default/TEST_MAPPING
+++ b/audio/core/all-versions/default/TEST_MAPPING
@@ -4,6 +4,9 @@
       "name": "android.hardware.audio@7.0-util_tests"
     },
     {
+      "name": "android.hardware.audio@7.1-util_tests"
+    },
+    {
       "name": "HalAudioV6_0GeneratorTest"
     },
     {
diff --git a/audio/core/all-versions/default/include/core/default/Device.h b/audio/core/all-versions/default/include/core/default/Device.h
index 94cad53..0696f97 100644
--- a/audio/core/all-versions/default/include/core/default/Device.h
+++ b/audio/core/all-versions/default/include/core/default/Device.h
@@ -44,7 +44,10 @@
 using ::android::hardware::hidl_vec;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::ParametersUtil;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::CPP_VERSION;
 using AudioInputFlags = CoreUtils::AudioInputFlags;
 using AudioOutputFlags = CoreUtils::AudioOutputFlags;
@@ -63,14 +66,32 @@
     Return<void> getInputBufferSize(const AudioConfig& config,
                                     getInputBufferSize_cb _hidl_cb) override;
 
-    std::tuple<Result, sp<IStreamOut>> openOutputStreamImpl(int32_t ioHandle,
+    std::tuple<Result, sp<IStreamOut>> openOutputStreamCore(int32_t ioHandle,
                                                             const DeviceAddress& device,
                                                             const AudioConfig& config,
                                                             const AudioOutputFlags& flags,
                                                             AudioConfig* suggestedConfig);
-    std::tuple<Result, sp<IStreamIn>> openInputStreamImpl(
+    std::tuple<Result, sp<IStreamIn>> openInputStreamCore(
             int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
             const AudioInputFlags& flags, AudioSource source, AudioConfig* suggestedConfig);
+#if MAJOR_VERSION >= 4
+    std::tuple<Result, sp<IStreamOut>, AudioConfig> openOutputStreamImpl(
+            int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
+            const SourceMetadata& sourceMetadata,
+#if MAJOR_VERSION <= 6
+            AudioOutputFlags flags);
+#else
+            const AudioOutputFlags& flags);
+#endif
+    std::tuple<Result, sp<IStreamIn>, AudioConfig> openInputStreamImpl(
+            int32_t ioHandle, const DeviceAddress& device, const AudioConfig& config,
+#if MAJOR_VERSION <= 6
+            AudioInputFlags flags,
+#else
+            const AudioInputFlags& flags,
+#endif
+            const SinkMetadata& sinkMetadata);
+#endif  // MAJOR_VERSION >= 4
 
     Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
                                   const AudioConfig& config,
@@ -97,6 +118,13 @@
 #endif
                                  openInputStream_cb _hidl_cb) override;
 
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    Return<void> openOutputStream_7_1(int32_t ioHandle, const DeviceAddress& device,
+                                      const AudioConfig& config, const AudioOutputFlags& flags,
+                                      const SourceMetadata& sourceMetadata,
+                                      openOutputStream_7_1_cb _hidl_cb) override;
+#endif
+
     Return<bool> supportsAudioPatches() override;
     Return<void> createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
                                   const hidl_vec<AudioPortConfig>& sinks,
@@ -131,6 +159,9 @@
                                   const hidl_vec<AudioPortConfig>& sinks,
                                   createAudioPatch_cb _hidl_cb) override;
 #endif
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    Return<Result> setConnectedState_7_1(const AudioPort& devicePort, bool connected) override;
+#endif
     Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
 
     // Utility methods for extending interfaces.
diff --git a/audio/core/all-versions/default/include/core/default/DevicesFactory.h b/audio/core/all-versions/default/include/core/default/DevicesFactory.h
index 9f93a38..566bc8a 100644
--- a/audio/core/all-versions/default/include/core/default/DevicesFactory.h
+++ b/audio/core/all-versions/default/include/core/default/DevicesFactory.h
@@ -44,11 +44,17 @@
     Return<void> openDevice(const hidl_string& device, openDevice_cb _hidl_cb) override;
     Return<void> openPrimaryDevice(openPrimaryDevice_cb _hidl_cb) override;
 #endif
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    Return<void> openDevice_7_1(const hidl_string& device, openDevice_7_1_cb _hidl_cb) override;
+    Return<void> openPrimaryDevice_7_1(openPrimaryDevice_7_1_cb _hidl_cb) override;
+#endif
 
-   private:
+  private:
     template <class DeviceShim, class Callback>
     Return<void> openDevice(const char* moduleName, Callback _hidl_cb);
+#if MAJOR_VERSION == 2
     Return<void> openDevice(const char* moduleName, openDevice_cb _hidl_cb);
+#endif
 
     static int loadAudioInterface(const char* if_name, audio_hw_device_t** dev);
 };
diff --git a/audio/core/all-versions/default/include/core/default/ParametersUtil.h b/audio/core/all-versions/default/include/core/default/ParametersUtil.h
index 45d9b21..25c193a 100644
--- a/audio/core/all-versions/default/include/core/default/ParametersUtil.h
+++ b/audio/core/all-versions/default/include/core/default/ParametersUtil.h
@@ -17,7 +17,10 @@
 #ifndef ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_
 #define ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_
 
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+// clang-format off
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+// clang-format on
 
 #include <functional>
 #include <memory>
@@ -28,13 +31,13 @@
 namespace android {
 namespace hardware {
 namespace audio {
-namespace CPP_VERSION {
+namespace CORE_TYPES_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;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 
 class ParametersUtil {
    public:
@@ -62,7 +65,7 @@
 };
 
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace CORE_TYPES_CPP_VERSION
 }  // namespace audio
 }  // namespace hardware
 }  // namespace android
diff --git a/audio/core/all-versions/default/include/core/default/PrimaryDevice.h b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
index 5f65acf..8b37e01 100644
--- a/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
+++ b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
@@ -36,7 +36,8 @@
 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::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::CPP_VERSION;
 
 struct PrimaryDevice : public IPrimaryDevice {
@@ -135,8 +136,10 @@
     Return<Result> setBtHfpVolume(float volume) override;
     Return<Result> updateRotation(IPrimaryDevice::Rotation rotation) override;
 #endif
-
-   private:
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    Return<sp<::android::hardware::audio::V7_1::IDevice>> getDevice() override { return mDevice; }
+#endif
+  private:
     sp<Device> mDevice;
 
     virtual ~PrimaryDevice();
diff --git a/audio/core/all-versions/default/include/core/default/Stream.h b/audio/core/all-versions/default/include/core/default/Stream.h
index 66d60e3..4e79884 100644
--- a/audio/core/all-versions/default/include/core/default/Stream.h
+++ b/audio/core/all-versions/default/include/core/default/Stream.h
@@ -17,7 +17,9 @@
 #ifndef ANDROID_HARDWARE_AUDIO_STREAM_H
 #define ANDROID_HARDWARE_AUDIO_STREAM_H
 
-#include PATH(android/hardware/audio/FILE_VERSION/IStream.h)
+// clang-format off
+#include PATH(android/hardware/audio/COMMON_TYPES_FILE_VERSION/IStream.h)
+// clang-format on
 
 #include "ParametersUtil.h"
 
@@ -41,10 +43,13 @@
 using ::android::hardware::hidl_vec;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::ParametersUtil;
 #if MAJOR_VERSION <= 6
-using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioChannelBitfield;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::
+        AudioChannelBitfield;
 #endif
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::CPP_VERSION;
 
 struct Stream : public IStream, public ParametersUtil {
diff --git a/audio/core/all-versions/default/include/core/default/StreamIn.h b/audio/core/all-versions/default/include/core/default/StreamIn.h
index a980f3f..4627eec 100644
--- a/audio/core/all-versions/default/include/core/default/StreamIn.h
+++ b/audio/core/all-versions/default/include/core/default/StreamIn.h
@@ -17,7 +17,9 @@
 #ifndef ANDROID_HARDWARE_AUDIO_STREAMIN_H
 #define ANDROID_HARDWARE_AUDIO_STREAMIN_H
 
-#include PATH(android/hardware/audio/FILE_VERSION/IStreamIn.h)
+// clang-format off
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/IStreamIn.h)
+// clang-format on
 
 #include "Device.h"
 #include "Stream.h"
@@ -42,7 +44,8 @@
 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::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::CPP_VERSION;
 
 struct StreamIn : public IStreamIn {
diff --git a/audio/core/all-versions/default/include/core/default/StreamOut.h b/audio/core/all-versions/default/include/core/default/StreamOut.h
index 0b07972..ce5253f 100644
--- a/audio/core/all-versions/default/include/core/default/StreamOut.h
+++ b/audio/core/all-versions/default/include/core/default/StreamOut.h
@@ -43,7 +43,8 @@
 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::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::CPP_VERSION;
 
 struct StreamOut : public IStreamOut {
@@ -152,6 +153,12 @@
     Result doUpdateSourceMetadata(const SourceMetadata& sourceMetadata);
 #if MAJOR_VERSION >= 7
     Result doUpdateSourceMetadataV7(const SourceMetadata& sourceMetadata);
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    Return<Result> setLatencyMode(LatencyMode mode) override;
+    Return<void> getRecommendedLatencyModes(getRecommendedLatencyModes_cb _hidl_cb) override;
+    Return<Result> setLatencyModeCallback(
+            const sp<IStreamOutLatencyModeCallback>& callback) override;
+#endif
 #endif
 #endif  // MAJOR_VERSION >= 4
 
@@ -162,6 +169,9 @@
     mediautils::atomic_sp<IStreamOutCallback> mCallback;  // for non-blocking write and drain
 #if MAJOR_VERSION >= 6
     mediautils::atomic_sp<IStreamOutEventCallback> mEventCallback;
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    mediautils::atomic_sp<IStreamOutLatencyModeCallback> mLatencyModeCallback;
+#endif
 #endif
     std::unique_ptr<CommandMQ> mCommandMQ;
     std::unique_ptr<DataMQ> mDataMQ;
@@ -176,6 +186,9 @@
 
 #if MAJOR_VERSION >= 6
     static int asyncEventCallback(stream_event_callback_type_t event, void* param, void* cookie);
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+    static void latencyModeCallback(audio_latency_mode_t* modes, size_t num_modes, void* cookie);
+#endif
 #endif
 };
 
diff --git a/audio/core/all-versions/default/include/core/default/Util.h b/audio/core/all-versions/default/include/core/default/Util.h
index 78ae03e..abf5317 100644
--- a/audio/core/all-versions/default/include/core/default/Util.h
+++ b/audio/core/all-versions/default/include/core/default/Util.h
@@ -17,7 +17,9 @@
 #ifndef ANDROID_HARDWARE_AUDIO_UTIL_H
 #define ANDROID_HARDWARE_AUDIO_UTIL_H
 
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+// clang-format off
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+// clang-format on
 
 #include <algorithm>
 #include <vector>
@@ -27,19 +29,19 @@
 namespace android {
 namespace hardware {
 namespace audio {
-namespace CPP_VERSION {
+namespace CORE_TYPES_CPP_VERSION {
 namespace implementation {
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using namespace ::android::hardware::audio::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
+
+namespace util {
 
 /** @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();
@@ -72,7 +74,7 @@
 
 }  // namespace util
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace CORE_TYPES_CPP_VERSION
 }  // namespace audio
 }  // namespace hardware
 }  // namespace android
diff --git a/audio/core/all-versions/default/util/Android.bp b/audio/core/all-versions/default/util/Android.bp
index 7caf18d..b96f2d2 100644
--- a/audio/core/all-versions/default/util/Android.bp
+++ b/audio/core/all-versions/default/util/Android.bp
@@ -112,6 +112,25 @@
     ],
 }
 
+cc_library {
+    name: "android.hardware.audio@7.1-util",
+    defaults: ["android.hardware.audio-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.1-enums",
+        "android.hardware.audio.common@7.1-util",
+        "android.hardware.audio@7.1",
+        "libbase",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
+        "-DCOMMON_TYPES_MINOR_VERSION=0",
+        "-DCORE_TYPES_MINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
 // Note: this isn't a VTS test, but rather a unit test
 // to verify correctness of conversion utilities.
 cc_test {
@@ -145,3 +164,37 @@
 
     test_suites: ["device-tests"],
 }
+
+cc_test {
+    name: "android.hardware.audio@7.1-util_tests",
+    defaults: ["android.hardware.audio-util_default"],
+
+    srcs: ["tests/coreutils_tests.cpp"],
+
+    // Use static linking to allow running in presubmit on
+    // targets that don't have HAL V7.1.
+    static_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.1-enums",
+        "android.hardware.audio.common@7.1-util",
+        "android.hardware.audio@7.1",
+        "android.hardware.audio@7.1-util",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "libxml2",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
+        "-DCOMMON_TYPES_MINOR_VERSION=0",
+        "-DCORE_TYPES_MINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+
+    test_suites: ["device-tests"],
+}
diff --git a/audio/core/all-versions/default/util/CoreUtils.cpp b/audio/core/all-versions/default/util/CoreUtils.cpp
index 773be21..8e83ea1 100644
--- a/audio/core/all-versions/default/util/CoreUtils.cpp
+++ b/audio/core/all-versions/default/util/CoreUtils.cpp
@@ -15,24 +15,24 @@
  */
 
 #if MAJOR_VERSION >= 7
-#include <android_audio_policy_configuration_V7_0-enums.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
 #endif
 #include <HidlUtils.h>
 #include <log/log.h>
 
 #include "util/CoreUtils.h"
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 #if MAJOR_VERSION >= 7
 namespace xsd {
-using namespace ::android::audio::policy::configuration::V7_0;
+using namespace ::android::audio::policy::configuration::CPP_VERSION;
 }
 #endif
 
 namespace android {
 namespace hardware {
 namespace audio {
-namespace CPP_VERSION {
+namespace CORE_TYPES_CPP_VERSION {
 namespace implementation {
 
 #define CONVERT_CHECKED(expr, result)                   \
@@ -389,7 +389,7 @@
 
 #if MAJOR_VERSION >= 7
 namespace xsd {
-using namespace ::android::audio::policy::configuration::V7_0;
+using namespace ::android::audio::policy::configuration::CPP_VERSION;
 }
 
 status_t CoreUtils::audioInputFlagsFromHal(audio_input_flags_t halFlagMask,
@@ -470,7 +470,7 @@
 #endif
 
 }  // namespace implementation
-}  // namespace CPP_VERSION
+}  // namespace CORE_TYPES_CPP_VERSION
 }  // namespace audio
 }  // namespace hardware
 }  // namespace android
diff --git a/audio/core/all-versions/default/util/include/util/CoreUtils.h b/audio/core/all-versions/default/util/include/util/CoreUtils.h
index 1e5272a..dc35772 100644
--- a/audio/core/all-versions/default/util/include/util/CoreUtils.h
+++ b/audio/core/all-versions/default/util/include/util/CoreUtils.h
@@ -17,7 +17,7 @@
 #pragma once
 
 // clang-format off
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
 // clang-format off
 
 #include <vector>
@@ -30,13 +30,13 @@
 namespace android {
 namespace hardware {
 namespace audio {
-namespace CPP_VERSION {
+namespace CORE_TYPES_CPP_VERSION {
 namespace implementation {
 
 using ::android::hardware::audio::common::utils::EnumBitfield;
 using ::android::hardware::hidl_vec;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using namespace ::android::hardware::audio::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 
 struct CoreUtils {
     // Note: the converters for DeviceAddress have to be in CoreUtils for HAL V4
@@ -93,8 +93,8 @@
         return NO_ERROR;
     }
 #else
-    using AudioInputFlags = hidl_vec<::android::hardware::audio::CPP_VERSION::AudioInOutFlag>;
-    using AudioOutputFlags = hidl_vec<::android::hardware::audio::CPP_VERSION::AudioInOutFlag>;
+    using AudioInputFlags = hidl_vec<::android::hardware::audio::CORE_TYPES_CPP_VERSION::AudioInOutFlag>;
+    using AudioOutputFlags = hidl_vec<::android::hardware::audio::CORE_TYPES_CPP_VERSION::AudioInOutFlag>;
     static status_t audioInputFlagsFromHal(audio_input_flags_t halFlagMask, AudioInputFlags* flags);
     static status_t audioInputFlagsToHal(const AudioInputFlags& flags, audio_input_flags_t* halFlagMask);
     static status_t audioOutputFlagsFromHal(audio_output_flags_t halFlagMask, AudioOutputFlags* flags);
diff --git a/audio/core/all-versions/default/util/tests/coreutils_tests.cpp b/audio/core/all-versions/default/util/tests/coreutils_tests.cpp
index 0c18482..0e15960 100644
--- a/audio/core/all-versions/default/util/tests/coreutils_tests.cpp
+++ b/audio/core/all-versions/default/util/tests/coreutils_tests.cpp
@@ -22,18 +22,18 @@
 #define LOG_TAG "CoreUtils_Test"
 #include <log/log.h>
 
-#include <android_audio_policy_configuration_V7_0-enums.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
 #include <system/audio.h>
 #include <util/CoreUtils.h>
 #include <xsdc/XsdcSupport.h>
 
 using namespace android;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using namespace ::android::hardware::audio::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 using ::android::hardware::hidl_vec;
-using ::android::hardware::audio::CPP_VERSION::implementation::CoreUtils;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
 namespace xsd {
-using namespace ::android::audio::policy::configuration::V7_0;
+using namespace ::android::audio::policy::configuration::CPP_VERSION;
 }
 
 static constexpr audio_channel_mask_t kInvalidHalChannelMask = AUDIO_CHANNEL_INVALID;
diff --git a/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h b/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h
index 1cffd41..dd80dd6 100644
--- a/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h
+++ b/audio/core/all-versions/vts/functional/2.0/AudioPrimaryHidlHalUtils.h
@@ -14,16 +14,18 @@
  * limitations under the License.
  */
 
+// clang-format off
 #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 PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
+// clang-format on
 #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::common::COMMON_TYPES_CPP_VERSION::AudioChannelMask;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioFormat;
 using ::android::hardware::audio::CPP_VERSION::IStream;
 using ::android::hardware::audio::CPP_VERSION::ParameterValue;
 using ::android::hardware::audio::CPP_VERSION::Result;
diff --git a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
index 787654b..7f4a777 100644
--- a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
@@ -17,7 +17,7 @@
 #include "AudioPrimaryHidlHalTest.h"
 
 #if MAJOR_VERSION >= 7
-#include <android_audio_policy_configuration_V7_0.h>
+#include PATH(APM_XSD_H_FILENAME)
 #include <xsdc/XsdcSupport.h>
 
 using android::xsdc_enum_range;
@@ -28,17 +28,36 @@
     if (getDeviceName() != DeviceManager::kPrimaryDevice) {
         GTEST_SKIP() << "No primary device on this factory";  // returns
     }
+    EXPECT_TRUE(DeviceManager::getInstance().resetPrimary(getFactoryName()));
 
-    {  // Scope for device SPs
-        sp<IDevice> baseDevice =
-                DeviceManager::getInstance().get(getFactoryName(), DeviceManager::kPrimaryDevice);
-        ASSERT_TRUE(baseDevice != nullptr);
-        Return<sp<IPrimaryDevice>> primaryDevice = IPrimaryDevice::castFrom(baseDevice);
+    // Must use IDevicesFactory directly because DeviceManager always uses
+    // the latest interfaces version and corresponding methods for opening
+    // them. However, in minor package uprevs IPrimaryDevice does not inherit
+    // IDevice from the same package and thus IDevice can not be upcasted
+    // (see the interfaces in V7.1).
+    auto factory = DevicesFactoryManager::getInstance().get(getFactoryName());
+    ASSERT_TRUE(factory != nullptr);
+    sp<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IDevice> baseDevice;
+    Result result;
+    auto ret = factory->openDevice(DeviceManager::kPrimaryDevice, returnIn(result, baseDevice));
+    ASSERT_TRUE(ret.isOk()) << ret.description();
+    ASSERT_EQ(Result::OK, result);
+    ASSERT_TRUE(baseDevice != nullptr);
+    {
+        Return<sp<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IPrimaryDevice>>
+                primaryDevice = ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IPrimaryDevice::
+                        castFrom(baseDevice);
         EXPECT_TRUE(primaryDevice.isOk());
-        EXPECT_TRUE(sp<IPrimaryDevice>(primaryDevice) != nullptr);
+        EXPECT_TRUE(sp<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IPrimaryDevice>(
+                            primaryDevice) != nullptr);
     }
-    EXPECT_TRUE(
-            DeviceManager::getInstance().reset(getFactoryName(), DeviceManager::kPrimaryDevice));
+#if MAJOR_VERSION < 6
+    baseDevice.clear();
+    DeviceManager::waitForInstanceDestruction();
+#else
+    auto closeRet = baseDevice->close();
+    EXPECT_TRUE(closeRet.isOk());
+#endif
 }
 
 //////////////////////////////////////////////////////////////////////////////
@@ -183,7 +202,7 @@
                areAudioPatchesSupported() ? doc::partialTest("Audio patches are supported")
                                           : testSetDevices(stream.get(), address))
 
-static void checkGetHwAVSync(IDevice* device) {
+static void checkGetHwAVSync(::android::hardware::audio::CPP_VERSION::IDevice* device) {
     Result res;
     AudioHwSync sync;
     ASSERT_OK(device->getHwAvSync(returnIn(res, sync)));
@@ -215,7 +234,7 @@
     ASSERT_OK(stream->updateSinkMetadata(initMetadata));
 
 #elif MAJOR_VERSION >= 7
-    xsdc_enum_range<android::audio::policy::configuration::V7_0::AudioSource> range;
+    xsdc_enum_range<android::audio::policy::configuration::CPP_VERSION::AudioSource> range;
     // Test all possible track configuration
     for (auto source : range) {
         for (float volume : {0.0, 0.5, 1.0}) {
@@ -272,8 +291,9 @@
     // Restore initial
     ASSERT_OK(stream->updateSourceMetadata(initMetadata));
 #elif MAJOR_VERSION >= 7
-    xsdc_enum_range<android::audio::policy::configuration::V7_0::AudioUsage> usageRange;
-    xsdc_enum_range<android::audio::policy::configuration::V7_0::AudioContentType> contentRange;
+    xsdc_enum_range<android::audio::policy::configuration::CPP_VERSION::AudioUsage> usageRange;
+    xsdc_enum_range<android::audio::policy::configuration::CPP_VERSION::AudioContentType>
+            contentRange;
     // Test all possible track configuration
     for (auto usage : usageRange) {
         for (auto content : contentRange) {
diff --git a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h
index 81a1f7b..83ca9eb 100644
--- a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalUtils.h
@@ -14,33 +14,36 @@
  * 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)
+// clang-format off
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/IStreamIn.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/FILE_VERSION/IStreamOut.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
+// clang-format on
 #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 ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioChannelMask;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioFormat;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStream;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::ParameterValue;
+using ::android::hardware::audio::CORE_TYPES_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;
+using Rotation = ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IPrimaryDevice::Rotation;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioContentType;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioUsage;
+using ::android::hardware::audio::CORE_TYPES_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;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::SinkMetadata;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::SourceMetadata;
 #endif
 
 struct Parameters {
diff --git a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
index 8af4c78..aef94da 100644
--- a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
@@ -59,7 +59,8 @@
     testAccessors<OPTIONAL>(&OutputStreamTest::getStream, "dual mono mode",
                             Initial{DualMonoMode::OFF},
                             {DualMonoMode::LR, DualMonoMode::LL, DualMonoMode::RR},
-                            &IStreamOut::setDualMonoMode, &IStreamOut::getDualMonoMode);
+                            &::android::hardware::audio::CPP_VERSION::IStreamOut::setDualMonoMode,
+                            &::android::hardware::audio::CPP_VERSION::IStreamOut::getDualMonoMode);
 }
 
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(DualMonoModeAccessorHidlTest);
@@ -73,7 +74,8 @@
     testAccessors<OPTIONAL>(
             &OutputStreamTest::getStream, "audio description mix level",
             Initial{-std::numeric_limits<float>::infinity()}, {-48.0f, -1.0f, 0.0f, 1.0f, 48.0f},
-            &IStreamOut::setAudioDescriptionMixLevel, &IStreamOut::getAudioDescriptionMixLevel,
+            &::android::hardware::audio::CPP_VERSION::IStreamOut::setAudioDescriptionMixLevel,
+            &::android::hardware::audio::CPP_VERSION::IStreamOut::getAudioDescriptionMixLevel,
             {48.5f, 1000.0f, std::numeric_limits<float>::infinity()});
 }
 
@@ -105,7 +107,8 @@
              PlaybackRate{0.5f, 0.5f, TimestretchMode::VOICE, TimestretchFallbackMode::MUTE},
              PlaybackRate{1000.0f, 1000.0f, TimestretchMode::VOICE, TimestretchFallbackMode::MUTE},
              PlaybackRate{1.0f, 1.0f, TimestretchMode::VOICE, TimestretchFallbackMode::FAIL}},
-            &IStreamOut::setPlaybackRateParameters, &IStreamOut::getPlaybackRateParameters,
+            &::android::hardware::audio::CPP_VERSION::IStreamOut::setPlaybackRateParameters,
+            &::android::hardware::audio::CPP_VERSION::IStreamOut::getPlaybackRateParameters,
             {PlaybackRate{1000.0f, 1000.0f, TimestretchMode::DEFAULT,
                           TimestretchFallbackMode::FAIL},
              PlaybackRate{1000.0f, 1000.0f, TimestretchMode::VOICE,
diff --git a/audio/core/all-versions/vts/functional/6.0/Generators.cpp b/audio/core/all-versions/vts/functional/6.0/Generators.cpp
index e3b98c9..dafd326 100644
--- a/audio/core/all-versions/vts/functional/6.0/Generators.cpp
+++ b/audio/core/all-versions/vts/functional/6.0/Generators.cpp
@@ -21,8 +21,8 @@
 #include "PolicyConfig.h"
 
 // clang-format off
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
 // Forward declaration for functions that are substituted
@@ -30,7 +30,7 @@
 const PolicyConfig& getCachedPolicyConfig();
 const std::vector<DeviceParameter>& getDeviceParameters();
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::CPP_VERSION;
 
 std::vector<DeviceConfigParameter> generateOutputDeviceConfigParameters(bool oneProfilePerDevice) {
diff --git a/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp
index 222fad7..f25c391 100644
--- a/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp
@@ -381,13 +381,13 @@
             "IDevice::open{Input|Output}Stream method.");
     AudioConfig suggestedConfig{};
     if (isParamForInputStream()) {
-        sp<IStreamIn> stream;
+        sp<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamIn> stream;
         ASSERT_OK(getDevice()->openInputStream(AudioIoHandle{}, getDeviceAddress(), getConfig(),
                                                getFlags(), getSinkMetadata(),
                                                returnIn(res, stream, suggestedConfig)));
         ASSERT_TRUE(stream == nullptr);
     } else {
-        sp<IStreamOut> stream;
+        sp<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamOut> stream;
         ASSERT_OK(getDevice()->openOutputStream(AudioIoHandle{}, getDeviceAddress(), getConfig(),
                                                 getFlags(), getSourceMetadata(),
                                                 returnIn(res, stream, suggestedConfig)));
@@ -551,13 +551,15 @@
     }
 
     void releasePatchIfNeeded() {
-        if (areAudioPatchesSupported()) {
-            if (mHasPatch) {
+        if (getDevice()) {
+            if (areAudioPatchesSupported() && mHasPatch) {
                 EXPECT_OK(getDevice()->releaseAudioPatch(mPatchHandle));
                 mHasPatch = false;
             }
         } else {
-            EXPECT_OK(stream->setDevices({address}));
+            if (stream) {
+                EXPECT_OK(stream->setDevices({address}));
+            }
         }
     }
 
@@ -724,13 +726,15 @@
     }
 
     void releasePatchIfNeeded() {
-        if (areAudioPatchesSupported()) {
-            if (mHasPatch) {
+        if (getDevice()) {
+            if (areAudioPatchesSupported() && mHasPatch) {
                 EXPECT_OK(getDevice()->releaseAudioPatch(mPatchHandle));
                 mHasPatch = false;
             }
         } else {
-            EXPECT_OK(stream->setDevices({address}));
+            if (stream) {
+                EXPECT_OK(stream->setDevices({address}));
+            }
         }
     }
 
diff --git a/audio/core/all-versions/vts/functional/7.0/Generators.cpp b/audio/core/all-versions/vts/functional/7.0/Generators.cpp
index 42bf1d3..f936d0a 100644
--- a/audio/core/all-versions/vts/functional/7.0/Generators.cpp
+++ b/audio/core/all-versions/vts/functional/7.0/Generators.cpp
@@ -20,20 +20,20 @@
 #include "7.0/PolicyConfig.h"
 
 // clang-format off
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
-#include <android_audio_policy_configuration_V7_0-enums.h>
-#include <android_audio_policy_configuration_V7_0.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
+#include PATH(APM_XSD_H_FILENAME)
 
 // Forward declaration for functions that are substituted
 // in generator unit tests.
 const PolicyConfig& getCachedPolicyConfig();
 const std::vector<DeviceParameter>& getDeviceParameters();
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using namespace ::android::hardware::audio::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 namespace xsd {
 using namespace ::android::audio::policy::configuration::CPP_VERSION;
 }
diff --git a/audio/core/all-versions/vts/functional/7.0/PolicyConfig.cpp b/audio/core/all-versions/vts/functional/7.0/PolicyConfig.cpp
index 2988207..d674403 100644
--- a/audio/core/all-versions/vts/functional/7.0/PolicyConfig.cpp
+++ b/audio/core/all-versions/vts/functional/7.0/PolicyConfig.cpp
@@ -30,9 +30,9 @@
 using ::android::NO_ERROR;
 using ::android::OK;
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using namespace ::android::hardware::audio::CPP_VERSION;
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 using ::android::hardware::audio::common::utils::splitString;
 namespace xsd {
 using namespace ::android::audio::policy::configuration::CPP_VERSION;
diff --git a/audio/core/all-versions/vts/functional/7.0/PolicyConfig.h b/audio/core/all-versions/vts/functional/7.0/PolicyConfig.h
index f798839..4aea503 100644
--- a/audio/core/all-versions/vts/functional/7.0/PolicyConfig.h
+++ b/audio/core/all-versions/vts/functional/7.0/PolicyConfig.h
@@ -25,15 +25,15 @@
 #include <utils/Errors.h>
 
 // clang-format off
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
-#include <android_audio_policy_configuration_V7_0-enums.h>
-#include <android_audio_policy_configuration_V7_0.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
+#include PATH(APM_XSD_H_FILENAME)
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
-using namespace ::android::hardware::audio::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
+using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
 namespace xsd {
 using namespace ::android::audio::policy::configuration::CPP_VERSION;
 using Module = Modules::Module;
diff --git a/audio/core/all-versions/vts/functional/7.1/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/7.1/AudioPrimaryHidlHalTest.cpp
new file mode 100644
index 0000000..d82d4ad
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/7.1/AudioPrimaryHidlHalTest.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// pull in all the <= 7.0 tests
+#include "7.0/AudioPrimaryHidlHalTest.cpp"
+
+TEST_P(AudioHidlDeviceTest, SetConnectedState_7_1) {
+    doc::test("Check that the HAL can be notified of device connection and disconnection");
+    using AD = xsd::AudioDevice;
+    for (auto deviceType : {AD::AUDIO_DEVICE_OUT_HDMI, AD::AUDIO_DEVICE_OUT_WIRED_HEADPHONE,
+                            AD::AUDIO_DEVICE_IN_USB_HEADSET}) {
+        SCOPED_TRACE("device=" + toString(deviceType));
+        for (bool state : {true, false}) {
+            SCOPED_TRACE("state=" + ::testing::PrintToString(state));
+            DeviceAddress address = {};
+            address.deviceType = toString(deviceType);
+            if (deviceType == AD::AUDIO_DEVICE_IN_USB_HEADSET) {
+                address.address.alsa({0, 0});
+            }
+            AudioPort devicePort;
+            devicePort.ext.device(address);
+            auto ret = getDevice()->setConnectedState_7_1(devicePort, state);
+            ASSERT_TRUE(ret.isOk());
+            if (ret == Result::NOT_SUPPORTED) {
+                doc::partialTest("setConnectedState_7_1 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.
+    ASSERT_TRUE(resetDevice());
+}
diff --git a/audio/core/all-versions/vts/functional/Android.bp b/audio/core/all-versions/vts/functional/Android.bp
index cfee26a..3007f01 100644
--- a/audio/core/all-versions/vts/functional/Android.bp
+++ b/audio/core/all-versions/vts/functional/Android.bp
@@ -48,6 +48,9 @@
 cc_test {
     name: "VtsHalAudioV2_0TargetTest",
     defaults: ["VtsHalAudioTargetTest_defaults"],
+    tidy_timeout_srcs: [
+        "2.0/AudioPrimaryHidlHalTest.cpp",
+    ],
     srcs: [
         "2.0/AudioPrimaryHidlHalTest.cpp",
     ],
@@ -74,6 +77,9 @@
 cc_test {
     name: "VtsHalAudioV4_0TargetTest",
     defaults: ["VtsHalAudioTargetTest_defaults"],
+    tidy_timeout_srcs: [
+        "4.0/AudioPrimaryHidlHalTest.cpp",
+    ],
     srcs: [
         "4.0/AudioPrimaryHidlHalTest.cpp",
     ],
@@ -126,6 +132,9 @@
 cc_test {
     name: "VtsHalAudioV6_0TargetTest",
     defaults: ["VtsHalAudioTargetTest_defaults"],
+    tidy_timeout_srcs: [
+        "6.0/AudioPrimaryHidlHalTest.cpp",
+    ],
     srcs: [
         "6.0/AudioPrimaryHidlHalTest.cpp",
         "6.0/Generators.cpp",
@@ -153,6 +162,9 @@
 cc_test {
     name: "VtsHalAudioV7_0TargetTest",
     defaults: ["VtsHalAudioTargetTest_defaults"],
+    tidy_timeout_srcs: [
+        "7.0/AudioPrimaryHidlHalTest.cpp",
+    ],
     srcs: [
         "7.0/AudioPrimaryHidlHalTest.cpp",
         "7.0/Generators.cpp",
@@ -179,6 +191,39 @@
     test_config: "VtsHalAudioV7_0TargetTest.xml",
 }
 
+cc_test {
+    name: "VtsHalAudioV7_1TargetTest",
+    defaults: ["VtsHalAudioTargetTest_defaults"],
+    srcs: [
+        "7.1/AudioPrimaryHidlHalTest.cpp",
+        "7.0/Generators.cpp",
+        "7.0/PolicyConfig.cpp",
+    ],
+    generated_headers: ["audio_policy_configuration_V7_1_parser"],
+    generated_sources: ["audio_policy_configuration_V7_1_parser"],
+    static_libs: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio@7.1",
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.0-enums",
+        "android.hardware.audio.common@7.1-enums",
+        "android.hardware.audio.common@7.1-util",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
+        "-DCOMMON_TYPES_MINOR_VERSION=0",
+        "-DCORE_TYPES_MINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+    data: [
+        ":audio_policy_configuration_V7_1",
+    ],
+    // Use test_config for vts suite.
+    // TODO(b/146104851): Add auto-gen rules and remove it.
+    test_config: "VtsHalAudioV7_1TargetTest.xml",
+}
+
 // Note: the following aren't VTS tests, but rather unit tests
 // to verify correctness of test utilities.
 cc_test {
diff --git a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
index 340903a..fa3ee7f 100644
--- a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
+++ b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
@@ -37,15 +37,17 @@
 #include <android-base/logging.h>
 #include <system/audio_config.h>
 
+// clang-format off
 #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 PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 #if MAJOR_VERSION >= 7
-#include <android_audio_policy_configuration_V7_0-enums.h>
-#include <android_audio_policy_configuration_V7_0.h>
+#include PATH(APM_XSD_ENUMS_H_FILENAME)
+#include PATH(APM_XSD_H_FILENAME)
 #endif
+// clang-format on
 
 #include <fmq/EventFlag.h>
 #include <fmq/MessageQueue.h>
@@ -86,11 +88,12 @@
 using ::android::hardware::audio::common::utils::mkEnumBitfield;
 using ::android::hardware::details::toHexString;
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::common::test::utility;
 using namespace ::android::hardware::audio::CPP_VERSION;
-using ReadParameters = ::android::hardware::audio::CPP_VERSION::IStreamIn::ReadParameters;
-using ReadStatus = ::android::hardware::audio::CPP_VERSION::IStreamIn::ReadStatus;
+using ReadParameters =
+        ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamIn::ReadParameters;
+using ReadStatus = ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamIn::ReadStatus;
 using WriteCommand = ::android::hardware::audio::CPP_VERSION::IStreamOut::WriteCommand;
 using WriteStatus = ::android::hardware::audio::CPP_VERSION::IStreamOut::WriteStatus;
 #if MAJOR_VERSION >= 7
@@ -124,6 +127,9 @@
 
 class HidlTest : public ::testing::Test {
   public:
+    using IDevice = ::android::hardware::audio::CPP_VERSION::IDevice;
+    using IDevicesFactory = ::android::hardware::audio::CPP_VERSION::IDevicesFactory;
+
     virtual ~HidlTest() = default;
     // public access to avoid annoyances when using this method in template classes
     // derived from test classes
@@ -168,7 +174,8 @@
 }
 
 TEST(CheckConfig, audioPolicyConfigurationValidation) {
-    const auto factories = ::android::hardware::getAllHalInstanceNames(IDevicesFactory::descriptor);
+    const auto factories = ::android::hardware::getAllHalInstanceNames(
+            ::android::hardware::audio::CPP_VERSION::IDevicesFactory::descriptor);
     if (factories.size() == 0) {
         GTEST_SKIP() << "Skipping audioPolicyConfigurationValidation because no factory instances "
                         "are found.";
@@ -198,8 +205,8 @@
 const std::vector<DeviceParameter>& getDeviceParameters() {
     static std::vector<DeviceParameter> parameters = [] {
         std::vector<DeviceParameter> result;
-        const auto factories =
-                ::android::hardware::getAllHalInstanceNames(IDevicesFactory::descriptor);
+        const auto factories = ::android::hardware::getAllHalInstanceNames(
+                ::android::hardware::audio::CPP_VERSION::IDevicesFactory::descriptor);
         const auto devices = getCachedPolicyConfig().getModulesWithDevicesNames();
         result.reserve(devices.size());
         for (const auto& factoryName : factories) {
@@ -217,8 +224,8 @@
 const std::vector<DeviceParameter>& getDeviceParametersForFactoryTests() {
     static std::vector<DeviceParameter> parameters = [] {
         std::vector<DeviceParameter> result;
-        const auto factories =
-                ::android::hardware::getAllHalInstanceNames(IDevicesFactory::descriptor);
+        const auto factories = ::android::hardware::getAllHalInstanceNames(
+                ::android::hardware::audio::CPP_VERSION::IDevicesFactory::descriptor);
         for (const auto& factoryName : factories) {
             result.emplace_back(factoryName,
                                 DeviceManager::getInstance().getPrimary(factoryName) != nullptr
@@ -288,6 +295,8 @@
 // Test audio devices factory
 class AudioHidlTest : public AudioHidlTestWithDeviceParameter {
   public:
+    using IPrimaryDevice = ::android::hardware::audio::CPP_VERSION::IPrimaryDevice;
+
     void SetUp() override {
         ASSERT_NO_FATAL_FAILURE(AudioHidlTestWithDeviceParameter::SetUp());  // setup base
         ASSERT_TRUE(getDevicesFactory() != nullptr);
@@ -301,7 +310,7 @@
 TEST_P(AudioHidlTest, OpenDeviceInvalidParameter) {
     doc::test("Test passing an invalid parameter to openDevice");
     Result result;
-    sp<IDevice> device;
+    sp<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IDevice> device;
 #if MAJOR_VERSION == 2
     auto invalidDevice = IDevicesFactory::Device(-1);
 #elif MAJOR_VERSION >= 4
@@ -572,8 +581,8 @@
                     [](auto&& arg) -> std::string {
                         using T = std::decay_t<decltype(arg)>;
                         // Need to use FQN of toString to avoid confusing the compiler
-                        return ::android::hardware::audio::common::CPP_VERSION::toString<T>(
-                                hidl_bitfield<T>(arg));
+                        return ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::
+                                toString<T>(hidl_bitfield<T>(arg));
                     },
                     std::get<PARAM_FLAGS>(info.param)));
 #elif MAJOR_VERSION >= 7
@@ -890,6 +899,8 @@
 
 class StreamWriter : public StreamWorker<StreamWriter> {
   public:
+    using IStreamOut = ::android::hardware::audio::CPP_VERSION::IStreamOut;
+
     StreamWriter(IStreamOut* stream, size_t bufferSize)
         : mStream(stream), mBufferSize(bufferSize), mData(mBufferSize) {}
     ~StreamWriter() {
@@ -998,7 +1009,8 @@
     EventFlag* mEfGroup = nullptr;
 };
 
-class OutputStreamTest : public OpenStreamTest<IStreamOut> {
+class OutputStreamTest
+    : public OpenStreamTest<::android::hardware::audio::CPP_VERSION::IStreamOut> {
     void SetUp() override {
         ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
 #if MAJOR_VERSION <= 6
@@ -1012,9 +1024,12 @@
                 [&](AudioIoHandle handle, AudioConfig config, auto cb) {
 #if MAJOR_VERSION == 2
                     return getDevice()->openOutputStream(handle, address, config, flags, cb);
-#elif MAJOR_VERSION >= 4
+#elif MAJOR_VERSION >= 4 && (MAJOR_VERSION < 7 || (MAJOR_VERSION == 7 && MINOR_VERSION == 0))
                     return getDevice()->openOutputStream(handle, address, config, flags,
                                                          initMetadata, cb);
+#elif MAJOR_VERSION == 7 && MINOR_VERSION == 1
+                    return getDevice()->openOutputStream_7_1(handle, address, config, flags,
+                                                             initMetadata, cb);
 #endif
                 },
                 config);
@@ -1075,6 +1090,8 @@
 
 class StreamReader : public StreamWorker<StreamReader> {
   public:
+    using IStreamIn = ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamIn;
+
     StreamReader(IStreamIn* stream, size_t bufferSize)
         : mStream(stream), mBufferSize(bufferSize), mData(mBufferSize) {}
     ~StreamReader() {
@@ -1188,7 +1205,8 @@
     EventFlag* mEfGroup = nullptr;
 };
 
-class InputStreamTest : public OpenStreamTest<IStreamIn> {
+class InputStreamTest
+    : public OpenStreamTest<::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamIn> {
     void SetUp() override {
         ASSERT_NO_FATAL_FAILURE(OpenStreamTest::SetUp());  // setup base
 #if MAJOR_VERSION <= 6
@@ -1584,7 +1602,9 @@
                             "InputStream::setGain");
 }
 
-static void testPrepareForReading(IStreamIn* stream, uint32_t frameSize, uint32_t framesCount) {
+static void testPrepareForReading(
+        ::android::hardware::audio::CORE_TYPES_CPP_VERSION::IStreamIn* stream, uint32_t frameSize,
+        uint32_t framesCount) {
     Result res;
     // Ignore output parameters as the call should fail
     ASSERT_OK(stream->prepareForReading(frameSize, framesCount,
@@ -1655,7 +1675,8 @@
                             "setVolume");
 }
 
-static void testPrepareForWriting(IStreamOut* stream, uint32_t frameSize, uint32_t framesCount) {
+static void testPrepareForWriting(::android::hardware::audio::CPP_VERSION::IStreamOut* stream,
+                                  uint32_t frameSize, uint32_t framesCount) {
     Result res;
     // Ignore output parameters as the call should fail
     ASSERT_OK(stream->prepareForWriting(frameSize, framesCount,
@@ -1682,6 +1703,8 @@
 }
 
 struct Capability {
+    using IStreamOut = ::android::hardware::audio::CPP_VERSION::IStreamOut;
+
     Capability(IStreamOut* stream) {
         EXPECT_OK(stream->supportsPauseAndResume(returnIn(pause, resume)));
         drain = extract(stream->supportsDrain());
@@ -1725,7 +1748,7 @@
     Return<void> onError() override { return {}; }
 };
 
-static bool isAsyncModeSupported(IStreamOut* stream) {
+static bool isAsyncModeSupported(::android::hardware::audio::CPP_VERSION::IStreamOut* stream) {
     auto res = stream->setCallback(new MockOutCallbacks);
     stream->clearCallback();  // try to restore the no callback state, ignore
                               // any error
@@ -1780,7 +1803,8 @@
     ASSERT_RESULT(Result::INVALID_STATE, stream->pause());
 }
 
-static void testDrain(IStreamOut* stream, AudioDrain type) {
+static void testDrain(::android::hardware::audio::CPP_VERSION::IStreamOut* stream,
+                      AudioDrain type) {
     if (!Capability(stream).drain) {
         doc::partialTest("The output stream does not support drain");
         return;
@@ -1866,7 +1890,8 @@
 }
 
 using TtyModeAccessorPrimaryHidlTest =
-        AccessorHidlTest<IPrimaryDevice::TtyMode, AudioPrimaryHidlTest>;
+        AccessorHidlTest<::android::hardware::audio::CPP_VERSION::IPrimaryDevice::TtyMode,
+                         AudioPrimaryHidlTest>;
 TEST_P(TtyModeAccessorPrimaryHidlTest, setGetTtyMode) {
     doc::test("Query and set the TTY mode state");
     testAccessors<OPTIONAL>(
diff --git a/audio/core/all-versions/vts/functional/AudioTestDefinitions.h b/audio/core/all-versions/vts/functional/AudioTestDefinitions.h
index aa67630..802b87b 100644
--- a/audio/core/all-versions/vts/functional/AudioTestDefinitions.h
+++ b/audio/core/all-versions/vts/functional/AudioTestDefinitions.h
@@ -22,8 +22,8 @@
 #include <vector>
 
 // clang-format off
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
 enum { PARAM_FACTORY_NAME, PARAM_DEVICE_NAME };
@@ -34,14 +34,14 @@
 #if MAJOR_VERSION <= 6
 enum { PARAM_DEVICE, PARAM_CONFIG, PARAM_FLAGS };
 enum { INDEX_INPUT, INDEX_OUTPUT };
-using DeviceConfigParameter =
-        std::tuple<DeviceParameter, android::hardware::audio::common::CPP_VERSION::AudioConfig,
-                   std::variant<android::hardware::audio::common::CPP_VERSION::AudioInputFlag,
-                                android::hardware::audio::common::CPP_VERSION::AudioOutputFlag>>;
+using DeviceConfigParameter = std::tuple<
+        DeviceParameter, android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioConfig,
+        std::variant<android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioInputFlag,
+                     android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioOutputFlag>>;
 #elif MAJOR_VERSION >= 7
 enum { PARAM_DEVICE, PARAM_PORT_NAME, PARAM_CONFIG, PARAM_FLAGS };
 using DeviceConfigParameter =
         std::tuple<DeviceParameter, std::string,
-                   android::hardware::audio::common::CPP_VERSION::AudioConfig,
-                   std::vector<android::hardware::audio::CPP_VERSION::AudioInOutFlag>>;
+                   android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioConfig,
+                   std::vector<android::hardware::audio::CORE_TYPES_CPP_VERSION::AudioInOutFlag>>;
 #endif
diff --git a/audio/core/all-versions/vts/functional/ConfigHelper.h b/audio/core/all-versions/vts/functional/ConfigHelper.h
index a2bb1ee..e4008cf 100644
--- a/audio/core/all-versions/vts/functional/ConfigHelper.h
+++ b/audio/core/all-versions/vts/functional/ConfigHelper.h
@@ -21,8 +21,8 @@
 #include "PolicyConfig.h"
 
 // clang-format off
-#include PATH(android/hardware/audio/FILE_VERSION/types.h)
-#include PATH(android/hardware/audio/common/FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
 using ::android::hardware::audio::common::utils::EnumBitfield;
diff --git a/audio/core/all-versions/vts/functional/DeviceManager.h b/audio/core/all-versions/vts/functional/DeviceManager.h
index 6db78a7..6bb39ed 100644
--- a/audio/core/all-versions/vts/functional/DeviceManager.h
+++ b/audio/core/all-versions/vts/functional/DeviceManager.h
@@ -22,19 +22,21 @@
 
 #include <android-base/logging.h>
 #include <hwbinder/IPCThreadState.h>
+#include <system/audio.h>
 
 // clang-format off
 #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 PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
+#include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h)
 // clang-format on
 
 #include "utility/ReturnIn.h"
 
 using ::android::sp;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::Result;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::common::test::utility;
 using namespace ::android::hardware::audio::CPP_VERSION;
 
@@ -94,29 +96,81 @@
     }
 };
 
-using FactoryAndDevice = std::tuple<std::string, std::string>;
-class DeviceManager : public InterfaceManager<DeviceManager, FactoryAndDevice, IDevice> {
+namespace impl {
+
+class PrimaryDeviceManager
+    : public InterfaceManager<PrimaryDeviceManager, std::string, IPrimaryDevice> {
   public:
-    static DeviceManager& getInstance() {
-        static DeviceManager instance;
-        return instance;
+    static sp<IPrimaryDevice> createInterfaceInstance(const std::string& factoryName) {
+        sp<IDevicesFactory> factory = DevicesFactoryManager::getInstance().get(factoryName);
+        return openPrimaryDevice(factory);
     }
+
+    bool reset(const std::string& factoryName) __attribute__((warn_unused_result)) {
+#if MAJOR_VERSION <= 5
+        return InterfaceManager::reset(factoryName, true);
+#elif MAJOR_VERSION >= 6
+        {
+            sp<IPrimaryDevice> device = getExisting(factoryName);
+            if (device != nullptr) {
+                auto ret = device->close();
+                ALOGE_IF(!ret.isOk(), "PrimaryDevice %s close failed: %s", factoryName.c_str(),
+                         ret.description().c_str());
+            }
+        }
+        return InterfaceManager::reset(factoryName, false);
+#endif
+    }
+
+  private:
+    static sp<IPrimaryDevice> openPrimaryDevice(const sp<IDevicesFactory>& factory) {
+        if (factory == nullptr) return {};
+        Result result;
+        sp<IPrimaryDevice> primaryDevice;
+#if !(MAJOR_VERSION == 7 && MINOR_VERSION == 1)
+        sp<IDevice> device;
+#if MAJOR_VERSION == 2
+        auto ret = factory->openDevice(IDevicesFactory::Device::PRIMARY, returnIn(result, device));
+        if (ret.isOk() && result == Result::OK && device != nullptr) {
+            primaryDevice = IPrimaryDevice::castFrom(device);
+        }
+#elif MAJOR_VERSION >= 4
+        auto ret = factory->openPrimaryDevice(returnIn(result, device));
+        if (ret.isOk() && result == Result::OK && device != nullptr) {
+            primaryDevice = IPrimaryDevice::castFrom(device);
+        }
+#endif
+        if (!ret.isOk() || result != Result::OK || primaryDevice == nullptr) {
+            ALOGW("Primary device can not be opened, transaction: %s, result %d, device %p",
+                  ret.description().c_str(), result, device.get());
+            return nullptr;
+        }
+#else  // V7.1
+        auto ret = factory->openPrimaryDevice_7_1(returnIn(result, primaryDevice));
+        if (!ret.isOk() || result != Result::OK) {
+            ALOGW("Primary device can not be opened, transaction: %s, result %d",
+                  ret.description().c_str(), result);
+            return nullptr;
+        }
+#endif
+        return primaryDevice;
+    }
+};
+
+using FactoryAndDevice = std::tuple<std::string, std::string>;
+class RegularDeviceManager
+    : public InterfaceManager<RegularDeviceManager, FactoryAndDevice, IDevice> {
+  public:
     static sp<IDevice> createInterfaceInstance(const FactoryAndDevice& factoryAndDevice) {
         auto [factoryName, name] = factoryAndDevice;
         sp<IDevicesFactory> factory = DevicesFactoryManager::getInstance().get(factoryName);
-        return name == kPrimaryDevice ? openPrimaryDevice(factory) : openDevice(factory, name);
+        return openDevice(factory, name);
     }
-    using InterfaceManager::reset;
-
-    static constexpr const char* kPrimaryDevice = "primary";
 
     sp<IDevice> get(const std::string& factoryName, const std::string& name) {
         return InterfaceManager::get(std::make_tuple(factoryName, name));
     }
-    sp<IPrimaryDevice> getPrimary(const std::string& factoryName) {
-        sp<IDevice> device = get(factoryName, kPrimaryDevice);
-        return device != nullptr ? IPrimaryDevice::castFrom(device) : nullptr;
-    }
+
     bool reset(const std::string& factoryName, const std::string& name)
             __attribute__((warn_unused_result)) {
 #if MAJOR_VERSION <= 5
@@ -133,42 +187,92 @@
         return InterfaceManager::reset(std::make_tuple(factoryName, name), false);
 #endif
     }
-    bool resetPrimary(const std::string& factoryName) __attribute__((warn_unused_result)) {
-        return reset(factoryName, kPrimaryDevice);
-    }
 
   private:
     static sp<IDevice> openDevice(const sp<IDevicesFactory>& factory, const std::string& name) {
         if (factory == nullptr) return nullptr;
-        sp<IDevice> device;
-#if MAJOR_VERSION >= 4
         Result result;
+        sp<IDevice> device;
+#if MAJOR_VERSION == 2
+        IDevicesFactory::Device dev = IDevicesFactory::IDevicesFactory::Device(-1);
+        if (name == AUDIO_HARDWARE_MODULE_ID_A2DP) {
+            dev = IDevicesFactory::Device::A2DP;
+        } else if (name == AUDIO_HARDWARE_MODULE_ID_USB) {
+            dev = IDevicesFactory::Device::USB;
+        } else if (name == AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) {
+            dev = IDevicesFactory::Device::R_SUBMIX;
+        } else if (name == AUDIO_HARDWARE_MODULE_ID_STUB) {
+            dev = IDevicesFactory::Device::STUB;
+        }
+        auto ret = factory->openDevice(dev, returnIn(result, device));
+#elif MAJOR_VERSION >= 4 && (MAJOR_VERSION < 7 || (MAJOR_VERSION == 7 && MINOR_VERSION == 0))
         auto ret = factory->openDevice(name, returnIn(result, device));
+#elif MAJOR_VERSION == 7 && MINOR_VERSION == 1
+        auto ret = factory->openDevice_7_1(name, returnIn(result, device));
+#endif
         if (!ret.isOk() || result != Result::OK || device == nullptr) {
             ALOGW("Device %s can not be opened, transaction: %s, result %d, device %p",
                   name.c_str(), ret.description().c_str(), result, device.get());
             return nullptr;
         }
-#else
-        (void)name;
-#endif
         return device;
     }
+};
+
+}  // namespace impl
+
+class DeviceManager {
+  public:
+    static DeviceManager& getInstance() {
+        static DeviceManager instance;
+        return instance;
+    }
 
-    static sp<IDevice> openPrimaryDevice(const sp<IDevicesFactory>& factory) {
-        if (factory == nullptr) return nullptr;
-        Result result;
-        sp<IDevice> device;
-#if MAJOR_VERSION == 2
-        auto ret = factory->openDevice(IDevicesFactory::Device::PRIMARY, returnIn(result, device));
-#elif MAJOR_VERSION >= 4
-        auto ret = factory->openPrimaryDevice(returnIn(result, device));
-#endif
-        if (!ret.isOk() || result != Result::OK || device == nullptr) {
-            ALOGW("Primary device can not be opened, transaction: %s, result %d, device %p",
-                  ret.description().c_str(), result, device.get());
+    static constexpr const char* kPrimaryDevice = "primary";
+
+    sp<IDevice> get(const std::string& factoryName, const std::string& name) {
+        if (name == kPrimaryDevice) {
+            auto primary = getPrimary(factoryName);
+            return primary ? deviceFromPrimary(primary) : nullptr;
+        }
+        return mDevices.get(factoryName, name);
+    }
+
+    sp<IPrimaryDevice> getPrimary(const std::string& factoryName) {
+        return mPrimary.get(factoryName);
+    }
+
+    bool reset(const std::string& factoryName, const std::string& name)
+            __attribute__((warn_unused_result)) {
+        return name == kPrimaryDevice ? resetPrimary(factoryName)
+                                      : mDevices.reset(factoryName, name);
+    }
+
+    bool resetPrimary(const std::string& factoryName) __attribute__((warn_unused_result)) {
+        return mPrimary.reset(factoryName);
+    }
+
+    static void waitForInstanceDestruction() {
+        // Does not matter which device manager to use.
+        impl::RegularDeviceManager::waitForInstanceDestruction();
+    }
+
+  private:
+    sp<IDevice> deviceFromPrimary(const sp<IPrimaryDevice>& primary) {
+#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
+        auto ret = primary->getDevice();
+        if (ret.isOk()) {
+            return ret;
+        } else {
+            ALOGW("Error retrieving IDevice from primary: transaction: %s, primary %p",
+                  ret.description().c_str(), primary.get());
             return nullptr;
         }
-        return device;
+#else
+        return primary;
+#endif
     }
+
+    impl::PrimaryDeviceManager mPrimary;
+    impl::RegularDeviceManager mDevices;
 };
diff --git a/audio/core/all-versions/vts/functional/VtsHalAudioV7_1TargetTest.xml b/audio/core/all-versions/vts/functional/VtsHalAudioV7_1TargetTest.xml
new file mode 100644
index 0000000..7b33a8f
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/VtsHalAudioV7_1TargetTest.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsHalAudioV7_1TargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
+    <target_preparer class="com.android.tradefed.targetprep.StopServicesSetup"/>
+
+    <target_preparer class="com.android.tradefed.targetprep.RunCommandTargetPreparer">
+        <option name="run-command" value="setprop vts.native_server.on 1"/>
+        <option name="teardown-command" value="setprop vts.native_server.on 0"/>
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="VtsHalAudioV7_1TargetTest->/data/local/tmp/VtsHalAudioV7_1TargetTest" />
+        <option name="push" value="audio_policy_configuration_V7_1.xsd->/data/local/tmp/audio_policy_configuration_V7_1.xsd" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalAudioV7_1TargetTest" />
+        <option name="native-test-timeout" value="5m" />
+    </test>
+</configuration>
diff --git a/audio/core/all-versions/vts/functional/tests/generators_tests.cpp b/audio/core/all-versions/vts/functional/tests/generators_tests.cpp
index 3fdd8e6..76bf93e 100644
--- a/audio/core/all-versions/vts/functional/tests/generators_tests.cpp
+++ b/audio/core/all-versions/vts/functional/tests/generators_tests.cpp
@@ -33,7 +33,7 @@
 #endif
 
 using namespace android;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 #if MAJOR_VERSION == 7
 namespace xsd {
 using namespace ::android::audio::policy::configuration::CPP_VERSION;
diff --git a/audio/effect/all-versions/default/Effect.cpp b/audio/effect/all-versions/default/Effect.cpp
index ccfc6b2..49f6bf2 100644
--- a/audio/effect/all-versions/default/Effect.cpp
+++ b/audio/effect/all-versions/default/Effect.cpp
@@ -42,9 +42,10 @@
 namespace implementation {
 
 #if MAJOR_VERSION <= 6
-using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioChannelBitfield;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::
+        AudioChannelBitfield;
 #endif
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 
 namespace {
 
diff --git a/audio/effect/all-versions/default/Effect.h b/audio/effect/all-versions/default/Effect.h
index d5218f7..f9a6796 100644
--- a/audio/effect/all-versions/default/Effect.h
+++ b/audio/effect/all-versions/default/Effect.h
@@ -48,9 +48,10 @@
 using ::android::hardware::Return;
 using ::android::hardware::Void;
 #if MAJOR_VERSION <= 6
-using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioDeviceBitfield;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::
+        AudioDeviceBitfield;
 #endif
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct Effect : public IEffect {
diff --git a/audio/effect/all-versions/default/EffectsFactory.cpp b/audio/effect/all-versions/default/EffectsFactory.cpp
index eb1cb49..e93ad89 100644
--- a/audio/effect/all-versions/default/EffectsFactory.cpp
+++ b/audio/effect/all-versions/default/EffectsFactory.cpp
@@ -53,7 +53,7 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::UuidUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::UuidUtils;
 
 // static
 sp<IEffect> EffectsFactory::dispatchEffectInstanceCreation(const effect_descriptor_t& halDescriptor,
diff --git a/audio/effect/all-versions/default/EffectsFactory.h b/audio/effect/all-versions/default/EffectsFactory.h
index 0b86836..da16923 100644
--- a/audio/effect/all-versions/default/EffectsFactory.h
+++ b/audio/effect/all-versions/default/EffectsFactory.h
@@ -41,7 +41,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct EffectsFactory : public IEffectsFactory {
diff --git a/audio/effect/all-versions/default/EnvironmentalReverbEffect.h b/audio/effect/all-versions/default/EnvironmentalReverbEffect.h
index 9694b5d..001774d 100644
--- a/audio/effect/all-versions/default/EnvironmentalReverbEffect.h
+++ b/audio/effect/all-versions/default/EnvironmentalReverbEffect.h
@@ -43,7 +43,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct EnvironmentalReverbEffect : public IEnvironmentalReverbEffect {
diff --git a/audio/effect/all-versions/default/EqualizerEffect.h b/audio/effect/all-versions/default/EqualizerEffect.h
index 7a6bc0a..c4d76c1 100644
--- a/audio/effect/all-versions/default/EqualizerEffect.h
+++ b/audio/effect/all-versions/default/EqualizerEffect.h
@@ -43,7 +43,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct EqualizerEffect : public IEqualizerEffect {
diff --git a/audio/effect/all-versions/default/LoudnessEnhancerEffect.h b/audio/effect/all-versions/default/LoudnessEnhancerEffect.h
index 6d80207..122ec36 100644
--- a/audio/effect/all-versions/default/LoudnessEnhancerEffect.h
+++ b/audio/effect/all-versions/default/LoudnessEnhancerEffect.h
@@ -39,7 +39,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct LoudnessEnhancerEffect : public ILoudnessEnhancerEffect {
diff --git a/audio/effect/all-versions/default/NoiseSuppressionEffect.h b/audio/effect/all-versions/default/NoiseSuppressionEffect.h
index 6cc45b9..96b9ecf 100644
--- a/audio/effect/all-versions/default/NoiseSuppressionEffect.h
+++ b/audio/effect/all-versions/default/NoiseSuppressionEffect.h
@@ -41,7 +41,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct NoiseSuppressionEffect : public INoiseSuppressionEffect {
diff --git a/audio/effect/all-versions/default/PresetReverbEffect.h b/audio/effect/all-versions/default/PresetReverbEffect.h
index eb55e20..9d82c08 100644
--- a/audio/effect/all-versions/default/PresetReverbEffect.h
+++ b/audio/effect/all-versions/default/PresetReverbEffect.h
@@ -39,7 +39,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct PresetReverbEffect : public IPresetReverbEffect {
diff --git a/audio/effect/all-versions/default/VirtualizerEffect.cpp b/audio/effect/all-versions/default/VirtualizerEffect.cpp
index 1dce181..6efc4ea 100644
--- a/audio/effect/all-versions/default/VirtualizerEffect.cpp
+++ b/audio/effect/all-versions/default/VirtualizerEffect.cpp
@@ -34,7 +34,7 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
 
 VirtualizerEffect::VirtualizerEffect(effect_handle_t handle)
     : mEffect(new Effect(false /*isInput*/, handle)) {}
diff --git a/audio/effect/all-versions/default/VirtualizerEffect.h b/audio/effect/all-versions/default/VirtualizerEffect.h
index 3ed06d1..f26e4fa 100644
--- a/audio/effect/all-versions/default/VirtualizerEffect.h
+++ b/audio/effect/all-versions/default/VirtualizerEffect.h
@@ -40,9 +40,10 @@
 using ::android::hardware::Return;
 using ::android::hardware::Void;
 #if MAJOR_VERSION <= 6
-using ::android::hardware::audio::common::CPP_VERSION::implementation::AudioChannelBitfield;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::
+        AudioChannelBitfield;
 #endif
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct VirtualizerEffect : public IVirtualizerEffect {
diff --git a/audio/effect/all-versions/default/VisualizerEffect.h b/audio/effect/all-versions/default/VisualizerEffect.h
index 3ae4b08..b8424c4 100644
--- a/audio/effect/all-versions/default/VisualizerEffect.h
+++ b/audio/effect/all-versions/default/VisualizerEffect.h
@@ -39,7 +39,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 
 struct VisualizerEffect : public IVisualizerEffect {
diff --git a/audio/effect/all-versions/default/util/EffectUtils.cpp b/audio/effect/all-versions/default/util/EffectUtils.cpp
index 1156d21..296f84d 100644
--- a/audio/effect/all-versions/default/util/EffectUtils.cpp
+++ b/audio/effect/all-versions/default/util/EffectUtils.cpp
@@ -25,8 +25,8 @@
 
 #include "util/EffectUtils.h"
 
-using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
-using ::android::hardware::audio::common::CPP_VERSION::implementation::UuidUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::UuidUtils;
 using ::android::hardware::audio::common::utils::EnumBitfield;
 
 namespace android {
@@ -36,7 +36,7 @@
 namespace CPP_VERSION {
 namespace implementation {
 
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 
 #define CONVERT_CHECKED(expr, result)                   \
     if (status_t status = (expr); status != NO_ERROR) { \
diff --git a/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp b/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp
index d021fa0..adfa167 100644
--- a/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp
+++ b/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp
@@ -27,7 +27,7 @@
 #include <xsdc/XsdcSupport.h>
 
 using namespace android;
-using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 using ::android::hardware::audio::effect::CPP_VERSION::implementation::EffectUtils;
 namespace xsd {
diff --git a/audio/effect/all-versions/vts/functional/Android.bp b/audio/effect/all-versions/vts/functional/Android.bp
index 48d6474..3b15ed4 100644
--- a/audio/effect/all-versions/vts/functional/Android.bp
+++ b/audio/effect/all-versions/vts/functional/Android.bp
@@ -26,6 +26,9 @@
 cc_defaults {
     name: "VtsHalAudioEffectTargetTest_default",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "VtsHalAudioEffectTargetTest.cpp",
+    ],
     srcs: [
         "VtsHalAudioEffectTargetTest.cpp",
         "ValidateAudioEffectsConfiguration.cpp",
diff --git a/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp b/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp
index 23e7786..e59423f 100644
--- a/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp
+++ b/audio/effect/all-versions/vts/functional/VtsHalAudioEffectTargetTest.cpp
@@ -50,7 +50,7 @@
 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::common::COMMON_TYPES_CPP_VERSION;
 using namespace ::android::hardware::audio::effect::CPP_VERSION;
 #if MAJOR_VERSION >= 7
 // Make an alias for enumerations generated from the APM config XSD.
diff --git a/automotive/audiocontrol/aidl/Android.bp b/automotive/audiocontrol/aidl/Android.bp
index 4acfd82..623097c 100644
--- a/automotive/audiocontrol/aidl/Android.bp
+++ b/automotive/audiocontrol/aidl/Android.bp
@@ -13,11 +13,17 @@
     name: "android.hardware.automotive.audiocontrol",
     vendor_available: true,
     srcs: ["android/hardware/automotive/audiocontrol/*.aidl"],
+    imports: [
+        "android.media.audio.common.types",
+        "android.hardware.audio.common",
+    ],
     stability: "vintf",
     backend: {
         java: {
-            sdk_version: "module_current",
+            platform_apis: true,
         },
     },
-    versions: ["1"],
+    versions: [
+        "1",
+    ],
 }
diff --git a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioFocusChange.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioFocusChange.aidl
index 3dc393a..58a3667 100644
--- a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioFocusChange.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioFocusChange.aidl
@@ -1,14 +1,30 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 ///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl
similarity index 85%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl
index 766f637..fb6ac65 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,10 +31,10 @@
 // with such a backward incompatible change, it has a high risk of breaking
 // later when a module using the interface is updated, e.g., Mainline modules.
 
-package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+package android.hardware.automotive.audiocontrol;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable AudioGainConfigInfo {
+  int zoneId;
+  String devicePortAddress;
+  int volumeIndex;
 }
diff --git a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/DuckingInfo.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
index 6d729e2..23abb46 100644
--- a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
@@ -1,14 +1,30 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 ///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
@@ -22,4 +38,5 @@
   String[] deviceAddressesToDuck;
   String[] deviceAddressesToUnduck;
   String[] usagesHoldingFocus;
+  @nullable android.hardware.audio.common.PlaybackTrackMetadata[] playbackMetaDataHoldingFocus;
 }
diff --git a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioControl.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioControl.aidl
index bc4162b..8dc5ffe 100644
--- a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioControl.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioControl.aidl
@@ -1,14 +1,30 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 ///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
@@ -18,10 +34,16 @@
 package android.hardware.automotive.audiocontrol;
 @VintfStability
 interface IAudioControl {
+  /**
+   * @deprecated use {@link android.hardware.audio.common.PlaybackTrackMetadata} instead.
+   */
   oneway void onAudioFocusChange(in String usage, in int zoneId, in android.hardware.automotive.audiocontrol.AudioFocusChange focusChange);
   oneway void onDevicesToDuckChange(in android.hardware.automotive.audiocontrol.DuckingInfo[] duckingInfos);
   oneway void onDevicesToMuteChange(in android.hardware.automotive.audiocontrol.MutingInfo[] mutingInfos);
   oneway void registerFocusListener(in android.hardware.automotive.audiocontrol.IFocusListener listener);
   oneway void setBalanceTowardRight(in float value);
   oneway void setFadeTowardFront(in float value);
+  oneway void onAudioFocusChangeWithMetaData(in android.hardware.audio.common.PlaybackTrackMetadata playbackMetaData, in int zoneId, in android.hardware.automotive.audiocontrol.AudioFocusChange focusChange);
+  oneway void setAudioDeviceGainsChanged(in android.hardware.automotive.audiocontrol.Reasons[] reasons, in android.hardware.automotive.audiocontrol.AudioGainConfigInfo[] gains);
+  oneway void registerGainCallback(in android.hardware.automotive.audiocontrol.IAudioGainCallback callback);
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioGainCallback.aidl
similarity index 82%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioGainCallback.aidl
index 766f637..17a087f 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IAudioGainCallback.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,10 +31,8 @@
 // with such a backward incompatible change, it has a high risk of breaking
 // later when a module using the interface is updated, e.g., Mainline modules.
 
-package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+package android.hardware.automotive.audiocontrol;
+@VintfStability
+interface IAudioGainCallback {
+  oneway void onAudioDeviceGainsChanged(in android.hardware.automotive.audiocontrol.Reasons[] reasons, in android.hardware.automotive.audiocontrol.AudioGainConfigInfo[] gains);
 }
diff --git a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IFocusListener.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IFocusListener.aidl
index f00f042..3e17552 100644
--- a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IFocusListener.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/IFocusListener.aidl
@@ -1,14 +1,30 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 ///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
@@ -20,4 +36,6 @@
 interface IFocusListener {
   oneway void abandonAudioFocus(in String usage, in int zoneId);
   oneway void requestAudioFocus(in String usage, in int zoneId, in android.hardware.automotive.audiocontrol.AudioFocusChange focusGain);
+  oneway void abandonAudioFocusWithMetaData(in android.hardware.audio.common.PlaybackTrackMetadata playbackMetaData, in int zoneId);
+  oneway void requestAudioFocusWithMetaData(in android.hardware.audio.common.PlaybackTrackMetadata playbackMetaData, in int zoneId, in android.hardware.automotive.audiocontrol.AudioFocusChange focusGain);
 }
diff --git a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/MutingInfo.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/MutingInfo.aidl
index ab902ec..b25ed0f 100644
--- a/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/MutingInfo.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/MutingInfo.aidl
@@ -1,14 +1,30 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 ///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/Reasons.aidl
similarity index 79%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/Reasons.aidl
index 766f637..c1e22d4 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/automotive/audiocontrol/aidl/aidl_api/android.hardware.automotive.audiocontrol/current/android/hardware/automotive/audiocontrol/Reasons.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,10 +31,17 @@
 // with such a backward incompatible change, it has a high risk of breaking
 // later when a module using the interface is updated, e.g., Mainline modules.
 
-package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+package android.hardware.automotive.audiocontrol;
+@Backing(type="int") @VintfStability
+enum Reasons {
+  FORCED_MASTER_MUTE = 1,
+  REMOTE_MUTE = 2,
+  TCU_MUTE = 4,
+  ADAS_DUCKING = 8,
+  NAV_DUCKING = 16,
+  PROJECTION_DUCKING = 32,
+  THERMAL_LIMITATION = 64,
+  SUSPEND_EXIT_VOL_LIMITATION = 128,
+  EXTERNAL_AMP_VOL_FEEDBACK = 256,
+  OTHER = -2147483648,
 }
diff --git a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl
new file mode 100644
index 0000000..c938296
--- /dev/null
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.automotive.audiocontrol;
+
+/**
+ * NOTE:
+ * Was expecting to reuse android.media.audio types... Limit info to minimum to prevent
+ * duplicating aidl_api. Will follow up if AudioGainConfig is exposed by android.media AIDL API.
+ */
+@JavaDerive(equals=true, toString=true)
+@VintfStability
+parcelable AudioGainConfigInfo {
+    /**
+     * The identifier for the audio zone the audio device port associated to this gain belongs to.
+     *
+     */
+    int zoneId;
+
+    /**
+     * The Audio Output Device Port Address.
+     *
+     * This is the address that can be retrieved at JAVA layer using the introspection
+     * {@link android.media.AudioManager#listAudioDevicePorts} API then
+     * {@link audio.media.AudioDeviceInfo#getAddress} API.
+     *
+     * At HAL layer, it corresponds to audio_port_v7.audio_port_device_ext.address.
+     *
+     * Devices that does not have an address will indicate an empty string "".
+     */
+    String devicePortAddress;
+
+    /**
+     * UI Index of the corresponding AudioGain in AudioPort.gains.
+     */
+    int volumeIndex;
+}
diff --git a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/DuckingInfo.aidl b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
index e95fe9b..c30d5f6 100644
--- a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
- package android.hardware.automotive.audiocontrol;
+package android.hardware.automotive.audiocontrol;
+
+import android.hardware.audio.common.PlaybackTrackMetadata;
 
  /**
   * The current ducking information for a single audio zone.
@@ -48,7 +50,15 @@
      /**
       * List of usages currently holding focus for this audio zone.
       *
+      * This field was deprecated in version 2.
+      * Use playbackMetaDataHoldingFocus instead.
+      *
       * <p> See {@code audioUsage} in audio_policy_configuration.xsd for the list of allowed values.
       */
      String[] usagesHoldingFocus;
- }
\ No newline at end of file
+
+     /**
+      *  List of output stream metadata associated with the current focus holder for this audio zone
+      */
+     @nullable PlaybackTrackMetadata[] playbackMetaDataHoldingFocus;
+}
diff --git a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioControl.aidl b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioControl.aidl
index 3a02245..100f1ba 100644
--- a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioControl.aidl
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioControl.aidl
@@ -20,6 +20,40 @@
 import android.hardware.automotive.audiocontrol.DuckingInfo;
 import android.hardware.automotive.audiocontrol.MutingInfo;
 import android.hardware.automotive.audiocontrol.IFocusListener;
+import android.hardware.automotive.audiocontrol.IAudioGainCallback;
+import android.hardware.automotive.audiocontrol.AudioGainConfigInfo;
+import android.hardware.automotive.audiocontrol.Reasons;
+
+/**
+ * Important note on Metadata:
+ * Metadata qualifies a playback track for an output stream.
+ * This is highly closed to {@link android.media.AudioAttributes}.
+ * It allows to identify the audio stream rendered / requesting / abandonning the focus.
+ *
+ * AudioControl 1.0 was limited to identification through {@code AttributeUsage} listed as
+ * {@code audioUsage} in audio_policy_configuration.xsd.
+ *
+ * Any new OEM needs would not be possible without extension.
+ *
+ * Relying on {@link android.hardware.automotive.audiocontrol.PlaybackTrackMetadata} allows
+ * to use a combination of {@code AttributeUsage}, {@code AttributeContentType} and
+ * {@code AttributeTags} to identify the use case / routing thanks to
+ * {@link android.media.audiopolicy.AudioProductStrategy}.
+ * The belonging to a strategy is deduced by an AOSP logic (in sync at native and java layer).
+ *
+ * IMPORTANT NOTE ON TAGS:
+ * To limit the possibilies and prevent from confusion, we expect the String to follow
+ * a given formalism that will be enforced.
+ *
+ * 1 / By convention, tags shall be a "key=value" pair.
+ * Vendor must namespace their tag's key (for example com.google.strategy=VR) to avoid conflicts.
+ * vendor specific applications and must be prefixed by "VX_". Vendor must
+ *
+ * 2 / Tags reported here shall be the same as the tags used to define a given
+ * {@link android.media.audiopolicy.AudioProductStrategy} and so in
+ * audio_policy_engine_configuration.xml file.
+ */
+import android.hardware.audio.common.PlaybackTrackMetadata;
 
 /**
  * Interacts with the car's audio subsystem to manage audio sources and volumes
@@ -36,8 +70,12 @@
      * The HAL is not required to wait for an callback of AUDIOFOCUS_GAIN before playing audio, nor
      * is it required to stop playing audio in the event of a AUDIOFOCUS_LOSS callback is received.
      *
+     * This method was deprecated in version 2 to allow getting rid of usages limitation.
+     * Use {@link IAudioControl#onAudioFocusChangeWithMetaData} instead.
+     *
      * @param usage The audio usage associated with the focus change {@code AttributeUsage}. See
      * {@code audioUsage} in audio_policy_configuration.xsd for the list of allowed values.
+     * @deprecated use {@link android.hardware.audio.common.PlaybackTrackMetadata} instead.
      * @param zoneId The identifier for the audio zone that the HAL is playing the stream in
      * @param focusChange the AudioFocusChange that has occurred.
      */
@@ -99,4 +137,51 @@
      * range.
      */
     oneway void setFadeTowardFront(in float value);
-}
\ No newline at end of file
+
+    /**
+     * Notifies HAL of changes in audio focus status for focuses requested or abandoned by the HAL.
+     *
+     * This will be called in response to IFocusListener's requestAudioFocus and
+     * abandonAudioFocus, as well as part of any change in focus being held by the HAL due focus
+     * request from other activities or services.
+     *
+     * The HAL is not required to wait for an callback of AUDIOFOCUS_GAIN before playing audio, nor
+     * is it required to stop playing audio in the event of a AUDIOFOCUS_LOSS callback is received.
+     *
+     * @param playbackMetaData The output stream metadata associated with the focus request
+     * @param zoneId The identifier for the audio zone that the HAL is playing the stream in
+     * @param focusChange the AudioFocusChange that has occurred.
+     */
+    oneway void onAudioFocusChangeWithMetaData(in PlaybackTrackMetadata playbackMetaData,
+        in int zoneId, in AudioFocusChange focusChange);
+
+     /**
+     * Notifies HAL of changes in output devices that the HAL should apply gain change to
+     * and the reason(s) why
+     *
+     * This may be called in response to changes in audio focus, and will include a list of
+     * {@link android.hardware.automotive.audiocontrol.AudioGainConfigInfo} objects per audio zone
+     * that experienced a change in audo focus.
+     *
+     * @param reasons List of reasons that triggered the given gains changed.
+     *                This must be one or more of the
+     *                {@link android.hardware.automotive.audiocontrol.Reasons} constants.
+     *
+     * @param gains List of gains the change is intended to.
+      */
+     oneway void setAudioDeviceGainsChanged(in Reasons[] reasons, in AudioGainConfigInfo[] gains);
+
+    /**
+     * Registers callback to be used by HAL for reporting unexpected gain(s) changed and the
+     * reason(s) why.
+     *
+     * It is expected that there will only ever be a single callback registered. If the
+     * observer dies, the HAL implementation must unregister observer automatically. If called when
+     * a listener is already registered, the existing one should be unregistered and replaced with
+     * the new callback.
+     *
+     * @param callback The {@link android.hardware.automotive.audiocontrol.IAudioGainCallback}
+     *                 interface.
+     */
+    oneway void registerGainCallback(in IAudioGainCallback callback);
+}
diff --git a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioGainCallback.aidl b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioGainCallback.aidl
new file mode 100644
index 0000000..17b4341
--- /dev/null
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioGainCallback.aidl
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.automotive.audiocontrol;
+
+import android.hardware.automotive.audiocontrol.AudioGainConfigInfo;
+import android.hardware.automotive.audiocontrol.Reasons;
+
+/**
+ * Interface definition for a callback to be invoked when the gain(s) of the device port(s) is(are)
+ * updated at HAL layer.
+ *
+ * <p>This defines counter part API of
+ * {@link android.hardware.automotive.audiocontrol.IAudioControl#onDevicesToDuckChange},
+ * {@link android.hardware.automotive.audiocontrol.IAudioControl#onDevicesToMuteChange} and
+ * {@link android.hardware.automotive.audiocontrol.IAudioControl#setAudioDeviceGainsChanged} APIs.
+ *
+ * The previous API defines Mute/Duck order decided by the client (e.g. CarAudioService)
+ * and delegated to AudioControl for application.
+ *
+ * This callback interface defines Mute/Duck notification decided by AudioControl HAL (due to
+ * e.g. - external conditions from Android IVI subsystem
+ *      - regulation / need faster decision rather than using
+ *        {@link android.hardware.automotive.audiocontrol.IAudioControl#onAudioFocusChange} to
+ *        report the use case and then waiting for CarAudioService decision to Mute/Duck.
+ */
+@VintfStability
+oneway interface IAudioGainCallback {
+    /**
+     * Used to indicated the one or more audio device port gains have changed unexpectidely, i.e.
+     * initiated by HAL, not by CarAudioService.
+     * This is the counter part of the
+     *      {@link android.hardware.automotive.audiocontrol.onDevicesToDuckChange},
+     *      {@link android.hardware.automotive.audiocontrol.onDevicesToMuteChange} and
+     *      {@link android.hardware.automotive.audiocontrol.setAudioDeviceGainsChanged} APIs.
+     *
+     * Flexibility is given to OEM to mute/duck in HAL or in CarAudioService.
+     * For critical use cases (i.e. when regulation is required), better to handle mute/duck in
+     * HAL layer and informs upper layer.
+     * Non critical use case may report gain and focus and CarAudioService to decide of duck/mute.
+     *
+     * @param reasons List of reasons that triggered the given gains changed.
+     *                This must be one or more of the
+     *                {@link android.hardware.automotive.audiocontrol.Reasons} constants.
+     *                It will define if the port has been muted/ducked or must now affected
+     *                by gain limitation that shall be notified/enforced at CarAudioService
+     *                layer.
+     *
+     * @param gains List of gains affected by the change.
+     */
+    void onAudioDeviceGainsChanged(in Reasons[] reasons, in AudioGainConfigInfo[] gains);
+}
diff --git a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IFocusListener.aidl b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IFocusListener.aidl
index b79295a..1ce1f40 100644
--- a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IFocusListener.aidl
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IFocusListener.aidl
@@ -18,10 +18,13 @@
 
 import android.hardware.automotive.audiocontrol.AudioFocusChange;
 
+import android.hardware.audio.common.PlaybackTrackMetadata;
+
 /**
  * Callback interface for audio focus listener.
  *
  * For typical configuration, the listener the car audio service.
+ *
  */
 @VintfStability
 interface IFocusListener {
@@ -33,6 +36,9 @@
      * interaction is oneway to avoid blocking HAL so that it is not required to wait for a response
      * before stopping audio playback.
      *
+     * Deprecated in version 2 to allow generic interface callback listener.
+     * Use {@link IFocusListener#abandonHalAudioFocusWithMetaData} instead.
+     *
      * @param usage The audio usage for which the HAL is abandoning focus {@code AttributeUsage}.
      * See {@code audioUsage} in audio_policy_configuration.xsd for the list of allowed values.
      * @param zoneId The identifier for the audio zone that the HAL abandoning focus
@@ -47,6 +53,9 @@
      * interaction is oneway to avoid blocking HAL so that it is not required to wait for a response
      * before playing audio.
      *
+     * Deprecated in version 2 to allow generic interface callback listener.
+     * Use {@link IFocusListener#requestAudioFocusWithMetaData} instead.
+     *
      * @param usage The audio usage associated with the focus request {@code AttributeUsage}. See
      * {@code audioUsage} in audio_policy_configuration.xsd for the list of allowed values.
      * @param zoneId The identifier for the audio zone where the HAL is requesting focus
@@ -54,4 +63,29 @@
      * following: GAIN, GAIN_TRANSIENT, GAIN_TRANSIENT_MAY_DUCK, GAIN_TRANSIENT_EXCLUSIVE.
      */
     oneway void requestAudioFocus(in String usage, in int zoneId, in AudioFocusChange focusGain);
-}
\ No newline at end of file
+
+    /**
+     * Used to indicate that the audio output stream associated with
+     * {@link android.hardware.audio.common.PlaybackTrackMetadata} has released
+     * the focus.
+     *
+     * @param playbackMetaData The output stream metadata associated with the focus request
+     * @param zoneId The identifier for the audio zone that the HAL abandoning focus
+     */
+    oneway void abandonAudioFocusWithMetaData(in PlaybackTrackMetadata playbackMetaData,
+            in int zoneId);
+
+    /**
+     * Used to indicate that the audio output stream associated with
+     * {@link android.hardware.audio.common.PlaybackTrackMetadata} has taken the focus.
+     *
+     * @param playbackMetaData The output stream metadata associated with the focus request
+     * @param zoneId The identifier for the audio zone that the HAL abandoning focus
+     * @param focusGain The focus type requested.
+     *                  This must be one of the
+     *                  {@link android.hardware.automotive.audiocontrol.AudioFocusChange}
+     *                  constants.
+     */
+    oneway void requestAudioFocusWithMetaData(in PlaybackTrackMetadata playbackMetaData,
+          in int zoneId, in AudioFocusChange focusGain);
+}
diff --git a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/Reasons.aidl b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/Reasons.aidl
new file mode 100644
index 0000000..3d9e8a2
--- /dev/null
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/Reasons.aidl
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.automotive.audiocontrol;
+
+/**
+ * Enum to identify the reason(s) of
+ * {@link android.hardware.automotive.audiocontrol.AudioGainConfigInfo} changed event
+ */
+@Backing(type="int")
+@VintfStability
+enum Reasons {
+    /**
+     * Magic Key Code (may be SWRC button combination) to force muting all audio sources.
+     * This may be used for example in case of cyber attach to ensure driver can safely drive back
+     * to garage to restore sw.
+     */
+    FORCED_MASTER_MUTE               = 0x1,
+    /**
+    * Reports a mute request outside the IVI (Android) system.
+    * It may target to mute the list of
+    * {@link android.hardware.automotive.audiocontrol.AudioGainConfigInfo}.
+    * A focus request may also be reported in addition if the use case that initiates the mute
+    * has matching {@link android.hardware.automotive.audiocontrol.PlaybackTrackMetadata}
+    * For regulation issue, the action of mute could be managed by HAL itself.
+     */
+    REMOTE_MUTE                     = 0x2,
+    /**
+    * Reports a mute initiated by the TCU. It may be applied to all audio source (no
+    * associated {@link android.hardware.automotive.audiocontrol.AudioGainConfigInfo} reported, or
+    * it may target to mute only the given list of ports.
+    * A focus request may also be reported in addition.
+    * For regulation issue, the action of mute could be managed by HAL itself.
+     */
+    TCU_MUTE                        = 0x4,
+    /**
+     * Reports a duck due to ADAS use case. A focus request may also be reported in addition.
+     * For regulation issue, the action of duck could be managed by HAL itself.
+     * It gives a chance to CarAudioService to decide whether contextual volume change may be
+     * applied from the ducked index base or not.
+     */
+    ADAS_DUCKING                    = 0x8,
+    /**
+     * Reports a duck due to navigation use case. It gives a chance to CarAudioService to decide
+     * whether contextual volume change may be applied from the ducked index base or not.
+     */
+    NAV_DUCKING                     = 0x10,
+    /**
+     * Some device projection stack may send signal to IVI to duck / unduck main audio stream.
+     * In this case, Contextual Volume Policy may be adapted to control the alternate / secondary
+     * audio stream.
+     */
+    PROJECTION_DUCKING              = 0x20,
+    /**
+     * When the amplifier is overheating, it may be recovered by limiting the volume.
+     */
+    THERMAL_LIMITATION              = 0x40,
+    /**
+     * Before the system enters suspend, it may ensure while exiting suspend or during cold boot
+     * that the volume is limited to prevent from sound explosion.
+     */
+    SUSPEND_EXIT_VOL_LIMITATION     = 0x80,
+    /**
+     * When using an external amplifier, it may be required to keep volume in sync and have
+     * asynchronous notification of effective volume change.
+     */
+    EXTERNAL_AMP_VOL_FEEDBACK       = 0x100,
+    /**
+     * For other OEM use.
+     */
+    OTHER                           = 0x80000000,
+}
diff --git a/automotive/evs/1.1/vts/functional/Android.bp b/automotive/evs/1.1/vts/functional/Android.bp
index cbc2150..18687bf 100644
--- a/automotive/evs/1.1/vts/functional/Android.bp
+++ b/automotive/evs/1.1/vts/functional/Android.bp
@@ -25,6 +25,9 @@
 
 cc_test {
     name: "VtsHalEvsV1_1TargetTest",
+    tidy_timeout_srcs: [
+        "VtsHalEvsV1_1TargetTest.cpp",
+    ],
     srcs: [
         "FrameHandler.cpp",
         "FrameHandlerUltrasonics.cpp",
diff --git a/automotive/sv/1.0/vts/functional/Android.bp b/automotive/sv/1.0/vts/functional/Android.bp
index 1ff3450..e94893c 100644
--- a/automotive/sv/1.0/vts/functional/Android.bp
+++ b/automotive/sv/1.0/vts/functional/Android.bp
@@ -25,6 +25,9 @@
 
 cc_test {
     name: "VtsHalSurroundViewV1_0TargetTest",
+    tidy_timeout_srcs: [
+        "VtsHalSurroundViewV1_0TargetTest.cpp",
+    ],
     srcs: [
         "VtsHalSurroundViewV1_0TargetTest.cpp",
         "SurroundViewStreamHandler.cpp",
diff --git a/automotive/vehicle/2.0/default/Android.bp b/automotive/vehicle/2.0/default/Android.bp
index 869c0c9..14177dd 100644
--- a/automotive/vehicle/2.0/default/Android.bp
+++ b/automotive/vehicle/2.0/default/Android.bp
@@ -172,6 +172,9 @@
     vendor: true,
     defaults: ["vhal_v2_0_target_defaults"],
     whole_static_libs: ["android.hardware.automotive.vehicle@2.0-manager-lib"],
+    tidy_timeout_srcs: [
+        "tests/VmsUtils_test.cpp",
+    ],
     srcs: [
         "tests/RecurrentTimer_test.cpp",
         "tests/SubscriptionManager_test.cpp",
diff --git a/automotive/vehicle/2.0/utils/Android.bp b/automotive/vehicle/2.0/utils/Android.bp
index a75ce49..770d447 100644
--- a/automotive/vehicle/2.0/utils/Android.bp
+++ b/automotive/vehicle/2.0/utils/Android.bp
@@ -39,6 +39,9 @@
     name: "android.hardware.automotive.vehicle@2.0-utils-unit-tests",
     defaults: ["vhal_v2_0_defaults"],
     vendor: true,
+    tidy_timeout_srcs: [
+        "tests/UserHalHelper_test.cpp",
+    ],
     srcs: [
         "tests/UserHalHelper_test.cpp",
     ],
diff --git a/biometrics/fingerprint/2.1/vts/functional/Android.bp b/biometrics/fingerprint/2.1/vts/functional/Android.bp
index 0935bf6..68b3360 100644
--- a/biometrics/fingerprint/2.1/vts/functional/Android.bp
+++ b/biometrics/fingerprint/2.1/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalBiometricsFingerprintV2_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalBiometricsFingerprintV2_1TargetTest.cpp"],
     srcs: ["VtsHalBiometricsFingerprintV2_1TargetTest.cpp"],
     static_libs: ["android.hardware.biometrics.fingerprint@2.1"],
     test_suites: ["general-tests", "vts"],
diff --git a/bluetooth/audio/2.0/vts/OWNERS b/bluetooth/audio/2.0/vts/OWNERS
deleted file mode 100644
index b266b06..0000000
--- a/bluetooth/audio/2.0/vts/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-include platform/packages/modules/Bluetooth:/OWNERS
-
-cheneyni@google.com
diff --git a/bluetooth/audio/2.1/vts/OWNERS b/bluetooth/audio/2.1/vts/OWNERS
deleted file mode 100644
index b266b06..0000000
--- a/bluetooth/audio/2.1/vts/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-include platform/packages/modules/Bluetooth:/OWNERS
-
-cheneyni@google.com
diff --git a/bluetooth/audio/2.1/vts/functional/Android.bp b/bluetooth/audio/2.1/vts/functional/Android.bp
index 3314a8a..cea7326 100644
--- a/bluetooth/audio/2.1/vts/functional/Android.bp
+++ b/bluetooth/audio/2.1/vts/functional/Android.bp
@@ -10,6 +10,7 @@
 cc_test {
     name: "VtsHalBluetoothAudioV2_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalBluetoothAudioV2_1TargetTest.cpp"],
     srcs: ["VtsHalBluetoothAudioV2_1TargetTest.cpp"],
     static_libs: [
         "android.hardware.audio.common@5.0",
diff --git a/bluetooth/audio/2.2/Android.bp b/bluetooth/audio/2.2/Android.bp
deleted file mode 100644
index d66e84e..0000000
--- a/bluetooth/audio/2.2/Android.bp
+++ /dev/null
@@ -1,33 +0,0 @@
-// This file is autogenerated by hidl-gen -Landroidbp.
-
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "hardware_interfaces_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["hardware_interfaces_license"],
-}
-
-hidl_interface {
-    name: "android.hardware.bluetooth.audio@2.2",
-    root: "android.hardware",
-    srcs: [
-        "types.hal",
-        "IBluetoothAudioPort.hal",
-        "IBluetoothAudioProvider.hal",
-        "IBluetoothAudioProvidersFactory.hal",
-    ],
-    interfaces: [
-        "android.hardware.audio.common@5.0",
-        "android.hardware.bluetooth.audio@2.0",
-        "android.hardware.bluetooth.audio@2.1",
-        "android.hidl.base@1.0",
-        "android.hidl.safe_union@1.0",
-    ],
-    apex_available: [
-        "//apex_available:platform",
-        "com.android.bluetooth",
-    ],
-    gen_java: false,
-}
diff --git a/bluetooth/audio/2.2/IBluetoothAudioPort.hal b/bluetooth/audio/2.2/IBluetoothAudioPort.hal
deleted file mode 100644
index 344899c..0000000
--- a/bluetooth/audio/2.2/IBluetoothAudioPort.hal
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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.bluetooth.audio@2.2;
-
-import @2.0::IBluetoothAudioPort;
-import android.hardware.audio.common@5.0::SinkMetadata;
-
-interface IBluetoothAudioPort extends @2.0::IBluetoothAudioPort  {
-    /**
-     * Called when the metadata of the stream's sink has been changed.
-     *
-     * @param sinkMetadata Description of the audio that is recorded by the
-     *    clients.
-     */
-    updateSinkMetadata(SinkMetadata sinkMetadata);
-};
diff --git a/bluetooth/audio/2.2/IBluetoothAudioProvider.hal b/bluetooth/audio/2.2/IBluetoothAudioProvider.hal
deleted file mode 100644
index f577537..0000000
--- a/bluetooth/audio/2.2/IBluetoothAudioProvider.hal
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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.bluetooth.audio@2.2;
-
-import @2.1::IBluetoothAudioProvider;
-import @2.2::IBluetoothAudioPort;
-import @2.0::Status;
-
-/**
- * HAL interface from the Bluetooth stack to the Audio HAL
- *
- * The Bluetooth stack calls methods in this interface to start and end audio
- * sessions and sends callback events to the Audio HAL.
- *
- * Note: For HIDL APIs with a "generates" statement, the callback parameter used
- * for return value must be invoked synchronously before the API call returns.
- */
-interface IBluetoothAudioProvider extends @2.1::IBluetoothAudioProvider {
-
-    /**
-     * This method indicates that the Bluetooth stack is ready to stream audio.
-     * It registers an instance of IBluetoothAudioPort with and provides the
-     * current negotiated codec to the Audio HAL. After this method is called,
-     * the Audio HAL can invoke IBluetoothAudioPort.startStream().
-     *
-     * Note: endSession() must be called to unregister this IBluetoothAudioPort
-     *
-     * @param hostIf An instance of IBluetoothAudioPort for stream control
-     * @param audioConfig The audio configuration negotiated with the remote
-     *    device. The PCM parameters are set if software based encoding,
-     *    otherwise the correct codec configuration is used for hardware
-     *    encoding.
-     *
-     * @return status One of the following
-     *    SUCCESS if this IBluetoothAudioPort was successfully registered with
-     *        the Audio HAL
-     *    UNSUPPORTED_CODEC_CONFIGURATION if the Audio HAL cannot register this
-     *        IBluetoothAudioPort with the given codec configuration
-     *    FAILURE if the Audio HAL cannot register this IBluetoothAudioPort for
-     *        any other reason
-     * @return dataMQ The fast message queue for audio data from/to this
-     *    provider. Audio data will be in PCM format as specified by the
-     *    audioConfig.pcmConfig parameter. Invalid if streaming is offloaded
-     *    from/to hardware or on failure.
-     */
-    startSession_2_2(IBluetoothAudioPort hostIf, AudioConfiguration audioConfig)
-                generates (Status status, fmq_sync<uint8_t> dataMQ);
-
-    /**
-     * Called when the audio configuration of the stream has been changed.
-     *
-     * @param audioConfig The audio configuration negotiated with the remote
-     *    device. The PCM parameters are set if software based encoding,
-     *    otherwise the correct codec configuration is used for hardware
-     *    encoding.
-     */
-    updateAudioConfiguration(AudioConfiguration audioConfig);
-};
diff --git a/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.hal b/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.hal
deleted file mode 100644
index ae9c598..0000000
--- a/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.hal
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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.bluetooth.audio@2.2;
-
-import IBluetoothAudioProvider;
-import @2.1::IBluetoothAudioProvidersFactory;
-import @2.0::Status;
-import @2.1::SessionType;
-
-/**
- * This factory allows a HAL implementation to be split into multiple
- * independent providers.
- *
- * When the Bluetooth stack is ready to create an audio session, it must first
- * obtain the IBluetoothAudioProvider for that session type by calling
- * openProvider().
- *
- * Note: For HIDL APIs with a "generates" statement, the callback parameter used
- * for return value must be invoked synchronously before the API call returns.
- */
-interface IBluetoothAudioProvidersFactory extends @2.1::IBluetoothAudioProvidersFactory {
-    /**
-     * Opens an audio provider for a session type. To close the provider, it is
-     * necessary to release references to the returned provider object.
-     *
-     * @param sessionType The session type (e.g.
-     *    LE_AUDIO_SOFTWARE_ENCODING_DATAPATH).
-     *
-     * @return status One of the following
-     *    SUCCESS if the Audio HAL successfully opens the provider with the
-     *        given session type
-     *    FAILURE if the Audio HAL cannot open the provider
-     * @return provider The provider of the specified session type
-     */
-    openProvider_2_2(SessionType sessionType)
-        generates (Status status, IBluetoothAudioProvider provider);
-
-    /**
-     * Gets a list of audio capabilities for a session type.
-     *
-     * For software encoding, the PCM capabilities are returned.
-     * For hardware encoding, the supported codecs and their capabilities are
-     * returned.
-     *
-     * @param sessionType The session type (e.g.
-     *    A2DP_SOFTWARE_ENCODING_DATAPATH).
-     * @return audioCapabilities A list containing all the capabilities
-     *    supported by the sesson type. The capabilities is a list of
-     *    available options when configuring the codec for the session.
-     *    For software encoding it is the PCM data rate.
-     *    For hardware encoding it is the list of supported codecs and their
-     *    capabilities.
-     *    If a provider isn't supported, an empty list should be returned.
-     *    Note: Only one entry should exist per codec when using hardware
-     *    encoding.
-     */
-     getProviderCapabilities_2_2(SessionType sessionType)
-         generates (vec<AudioCapabilities> audioCapabilities);
-};
diff --git a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.cpp b/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.cpp
deleted file mode 100644
index 2a6d93a..0000000
--- a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderA2dpOffload"
-
-#include "A2dpOffloadAudioProvider.h"
-
-#include <android-base/logging.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-A2dpOffloadAudioProvider::A2dpOffloadAudioProvider()
-    : BluetoothAudioProvider() {
-  session_type_ = V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH;
-}
-
-bool A2dpOffloadAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  return isValid(static_cast<V2_1::SessionType>(sessionType));
-}
-
-bool A2dpOffloadAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_);
-}
-
-Return<void> A2dpOffloadAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::codecConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsOffloadCodecConfigurationValid(
-                 session_type_, audioConfig.codecConfig())) {
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb);
-}
-
-Return<void> A2dpOffloadAudioProvider::onSessionReady(
-    startSession_cb _hidl_cb) {
-  BluetoothAudioSessionReport_2_2::OnSessionStarted(session_type_, stack_iface_,
-                                                    nullptr, audio_config_);
-  _hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor());
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.h b/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.h
deleted file mode 100644
index 7ccdedc..0000000
--- a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-class A2dpOffloadAudioProvider : public BluetoothAudioProvider {
- public:
-  A2dpOffloadAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-
- private:
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp b/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
deleted file mode 100644
index eb87178..0000000
--- a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderA2dpSoftware"
-
-#include "A2dpSoftwareAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
-
-// Here the buffer size is based on SBC
-static constexpr uint32_t kPcmFrameSize = 4;  // 16 bits per sample / stereo
-// SBC is 128, and here we choose the LCM of 16, 24, and 32
-static constexpr uint32_t kPcmFrameCount = 96;
-static constexpr uint32_t kRtpFrameSize = kPcmFrameSize * kPcmFrameCount;
-// The max counts by 1 tick (20ms) for SBC is about 7. Since using 96 for the
-// PCM counts, here we just choose a greater number
-static constexpr uint32_t kRtpFrameCount = 10;
-static constexpr uint32_t kBufferSize = kRtpFrameSize * kRtpFrameCount;
-static constexpr uint32_t kBufferCount = 2;  // double buffer
-static constexpr uint32_t kDataMqSize = kBufferSize * kBufferCount;
-
-A2dpSoftwareAudioProvider::A2dpSoftwareAudioProvider()
-    : BluetoothAudioProvider(), mDataMQ(nullptr) {
-  LOG(INFO) << __func__ << " - size of audio buffer " << kDataMqSize
-            << " byte(s)";
-  std::unique_ptr<DataMQ> tempDataMQ(
-      new DataMQ(kDataMqSize, /* EventFlag */ true));
-  if (tempDataMQ && tempDataMQ->isValid()) {
-    mDataMQ = std::move(tempDataMQ);
-    session_type_ = V2_1::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH;
-  } else {
-    ALOGE_IF(!tempDataMQ, "failed to allocate data MQ");
-    ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "data MQ is invalid");
-  }
-}
-
-bool A2dpSoftwareAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  return isValid(static_cast<V2_1::SessionType>(sessionType));
-}
-
-bool A2dpSoftwareAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_ && mDataMQ && mDataMQ->isValid());
-}
-
-Return<void> A2dpSoftwareAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsSoftwarePcmConfigurationValid(
-                 audioConfig.pcmConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
-                 << toString(audioConfig.pcmConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb);
-}
-
-Return<void> A2dpSoftwareAudioProvider::onSessionReady(
-    startSession_cb _hidl_cb) {
-  if (mDataMQ && mDataMQ->isValid()) {
-    BluetoothAudioSessionReport_2_2::OnSessionStarted(
-        session_type_, stack_iface_, mDataMQ->getDesc(), audio_config_);
-    _hidl_cb(BluetoothAudioStatus::SUCCESS, *mDataMQ->getDesc());
-  } else {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-  }
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.h b/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.h
deleted file mode 100644
index ac3aece..0000000
--- a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-class A2dpSoftwareAudioProvider : public BluetoothAudioProvider {
- public:
-  A2dpSoftwareAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-
- private:
-  // audio data queue for software encoding
-  std::unique_ptr<DataMQ> mDataMQ;
-
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/Android.bp b/bluetooth/audio/2.2/default/Android.bp
deleted file mode 100644
index 7a5ae75..0000000
--- a/bluetooth/audio/2.2/default/Android.bp
+++ /dev/null
@@ -1,37 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "hardware_interfaces_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["hardware_interfaces_license"],
-}
-
-cc_library_shared {
-    name: "android.hardware.bluetooth.audio@2.2-impl",
-    defaults: ["hidl_defaults"],
-    vendor: true,
-    relative_install_path: "hw",
-    srcs: [
-        "BluetoothAudioProvidersFactory.cpp",
-        "BluetoothAudioProvider.cpp",
-        "A2dpOffloadAudioProvider.cpp",
-        "A2dpSoftwareAudioProvider.cpp",
-        "HearingAidAudioProvider.cpp",
-        "LeAudioAudioProvider.cpp",
-        "LeAudioOffloadAudioProvider.cpp",
-    ],
-    header_libs: ["libhardware_headers"],
-    shared_libs: [
-        "android.hardware.bluetooth.audio@2.0",
-        "android.hardware.bluetooth.audio@2.1",
-        "android.hardware.bluetooth.audio@2.2",
-        "libbase",
-        "libbluetooth_audio_session",
-        "libcutils",
-        "libfmq",
-        "libhidlbase",
-        "liblog",
-        "libutils",
-    ],
-}
diff --git a/bluetooth/audio/2.2/default/AudioPort_2_0_to_2_2_Wrapper.h b/bluetooth/audio/2.2/default/AudioPort_2_0_to_2_2_Wrapper.h
deleted file mode 100644
index c5613fb..0000000
--- a/bluetooth/audio/2.2/default/AudioPort_2_0_to_2_2_Wrapper.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <android/hardware/bluetooth/audio/2.2/types.h>
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::sp;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::audio::common::V5_0::SinkMetadata;
-using ::android::hardware::audio::common::V5_0::SourceMetadata;
-using ::android::hardware::bluetooth::audio::V2_2::IBluetoothAudioPort;
-
-class AudioPort_2_0_to_2_2_Wrapper : public V2_2::IBluetoothAudioPort {
- public:
-  AudioPort_2_0_to_2_2_Wrapper(const sp<V2_0::IBluetoothAudioPort>& port) {
-    this->port = port;
-  }
-
-  Return<void> startStream() override { return port->startStream(); }
-  Return<void> suspendStream() override { return port->suspendStream(); }
-  Return<void> stopStream() override { return port->stopStream(); }
-  Return<void> getPresentationPosition(
-      getPresentationPosition_cb _hidl_cb) override {
-    return port->getPresentationPosition(_hidl_cb);
-  }
-  Return<void> updateMetadata(const SourceMetadata& sourceMetadata) override {
-    return port->updateMetadata(sourceMetadata);
-  }
-  Return<void> updateSinkMetadata(const SinkMetadata&) override {
-    // DO NOTHING, 2.0 AudioPort doesn't support sink metadata updates
-    return Void();
-  }
-
-  sp<V2_0::IBluetoothAudioPort> port;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
\ No newline at end of file
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp b/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
deleted file mode 100644
index 202cfb9..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderStub"
-
-#include "BluetoothAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "AudioPort_2_0_to_2_2_Wrapper.h"
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-using ::android::hardware::Void;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-void BluetoothAudioDeathRecipient::serviceDied(
-    uint64_t cookie __unused,
-    const wp<::android::hidl::base::V1_0::IBase>& who __unused) {
-  LOG(ERROR) << "BluetoothAudioDeathRecipient::" << __func__
-             << " - BluetoothAudio Service died";
-  provider_->endSession();
-}
-
-BluetoothAudioProvider::BluetoothAudioProvider()
-    : death_recipient_(new BluetoothAudioDeathRecipient(this)),
-      session_type_(V2_1::SessionType::UNKNOWN),
-      audio_config_({}) {}
-
-Return<void> BluetoothAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_0::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  AudioConfiguration audioConfig_2_2;
-
-  if (audioConfig.getDiscriminator() ==
-      V2_0::AudioConfiguration::hidl_discriminator::pcmConfig) {
-    audioConfig_2_2.pcmConfig(
-        {.sampleRate =
-             static_cast<V2_1::SampleRate>(audioConfig.pcmConfig().sampleRate),
-         .channelMode = audioConfig.pcmConfig().channelMode,
-         .bitsPerSample = audioConfig.pcmConfig().bitsPerSample,
-         .dataIntervalUs = 0});
-  } else {
-    audioConfig_2_2.codecConfig(audioConfig.codecConfig());
-  }
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> BluetoothAudioProvider::startSession_2_1(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  AudioConfiguration audioConfig_2_2;
-  if (audioConfig.getDiscriminator() ==
-      V2_1::AudioConfiguration::hidl_discriminator::leAudioCodecConfig) {
-    audioConfig_2_2.leAudioConfig().mode = LeAudioMode::UNKNOWN;
-    audioConfig_2_2.leAudioConfig().config.unicastConfig() = {
-        .streamMap = {{
-            .streamHandle = 0xFFFF,
-            .audioChannelAllocation =
-                audioConfig.leAudioCodecConfig().audioChannelAllocation,
-        }},
-        .peerDelay = 0,
-        .lc3Config = audioConfig.leAudioCodecConfig().lc3Config};
-  } else if (audioConfig.getDiscriminator() ==
-             V2_1::AudioConfiguration::hidl_discriminator::pcmConfig) {
-    audioConfig_2_2.pcmConfig(audioConfig.pcmConfig());
-  } else {
-    audioConfig_2_2.codecConfig(audioConfig.codecConfig());
-  }
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> BluetoothAudioProvider::startSession_2_2(
-    const sp<V2_2::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  if (hostIf == nullptr) {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-    return Void();
-  }
-
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  audio_config_ = audioConfig;
-  stack_iface_ = hostIf;
-  stack_iface_->linkToDeath(death_recipient_, 0);
-
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", AudioConfiguration=[" << toString(audio_config_) << "]";
-
-  onSessionReady(_hidl_cb);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::streamStarted(
-    BluetoothAudioStatus status) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", status=" << toString(status);
-
-  /**
-   * Streaming on control path has started,
-   * HAL server should start the streaming on data path.
-   */
-  if (stack_iface_) {
-    BluetoothAudioSessionReport_2_2::ReportControlStatus(session_type_, true,
-                                                         status);
-  } else {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
-                 << ", status=" << toString(status) << " has NO session";
-  }
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::streamSuspended(
-    BluetoothAudioStatus status) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", status=" << toString(status);
-
-  /**
-   * Streaming on control path has suspend,
-   * HAL server should suspend the streaming on data path.
-   */
-  if (stack_iface_) {
-    BluetoothAudioSessionReport_2_2::ReportControlStatus(session_type_, false,
-                                                         status);
-  } else {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
-                 << ", status=" << toString(status) << " has NO session";
-  }
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::endSession() {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
-  if (stack_iface_) {
-    BluetoothAudioSessionReport_2_2::OnSessionEnded(session_type_);
-    stack_iface_->unlinkToDeath(death_recipient_);
-  } else {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " has NO session";
-  }
-
-  /**
-   * Clean up the audio platform as remote audio device is no
-   * longer active
-   */
-  stack_iface_ = nullptr;
-  audio_config_ = {};
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::updateAudioConfiguration(
-    const AudioConfiguration& audioConfig) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
-  if (stack_iface_ == nullptr) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " has NO session";
-    return Void();
-  }
-
-  if (audioConfig.getDiscriminator() != audio_config_.getDiscriminator()) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " audio config type is not match";
-    return Void();
-  }
-
-  audio_config_ = audioConfig;
-  BluetoothAudioSessionReport_2_2::ReportAudioConfigChanged(session_type_,
-                                                            audio_config_);
-
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvider.h b/bluetooth/audio/2.2/default/BluetoothAudioProvider.h
deleted file mode 100644
index 425ea3b..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvider.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <android/hardware/bluetooth/audio/2.2/IBluetoothAudioProvider.h>
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::sp;
-using ::android::hardware::bluetooth::audio::V2_2::IBluetoothAudioPort;
-
-using BluetoothAudioStatus =
-    ::android::hardware::bluetooth::audio::V2_0::Status;
-
-class BluetoothAudioDeathRecipient;
-
-class BluetoothAudioProvider : public IBluetoothAudioProvider {
- public:
-  BluetoothAudioProvider();
-  ~BluetoothAudioProvider() = default;
-
-  virtual bool isValid(const V2_1::SessionType& sessionType) = 0;
-  virtual bool isValid(const V2_0::SessionType& sessionType) = 0;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-  Return<void> startSession_2_1(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                                const V2_1::AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
-                                const AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-  Return<void> streamStarted(BluetoothAudioStatus status) override;
-  Return<void> streamSuspended(BluetoothAudioStatus status) override;
-  Return<void> endSession() override;
-  Return<void> updateAudioConfiguration(
-      const AudioConfiguration& audioConfig) override;
-
- protected:
-  sp<BluetoothAudioDeathRecipient> death_recipient_;
-
-  V2_1::SessionType session_type_;
-  AudioConfiguration audio_config_;
-  sp<V2_2::IBluetoothAudioPort> stack_iface_;
-
-  virtual Return<void> onSessionReady(startSession_cb _hidl_cb) = 0;
-};
-
-class BluetoothAudioDeathRecipient : public hidl_death_recipient {
- public:
-  BluetoothAudioDeathRecipient(const sp<BluetoothAudioProvider> provider)
-      : provider_(provider) {}
-
-  virtual void serviceDied(
-      uint64_t cookie,
-      const wp<::android::hidl::base::V1_0::IBase>& who) override;
-
- private:
-  sp<BluetoothAudioProvider> provider_;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp b/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
deleted file mode 100644
index 490a436..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProvidersFactory"
-
-#include "BluetoothAudioProvidersFactory.h"
-
-#include <android-base/logging.h>
-
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::hidl_vec;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::CodecCapabilities;
-
-A2dpSoftwareAudioProvider
-    BluetoothAudioProvidersFactory::a2dp_software_provider_instance_;
-A2dpOffloadAudioProvider
-    BluetoothAudioProvidersFactory::a2dp_offload_provider_instance_;
-HearingAidAudioProvider
-    BluetoothAudioProvidersFactory::hearing_aid_provider_instance_;
-LeAudioOutputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_output_provider_instance_;
-LeAudioOffloadOutputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_offload_output_provider_instance_;
-LeAudioInputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_input_provider_instance_;
-LeAudioOffloadInputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_offload_input_provider_instance_;
-
-Return<void> BluetoothAudioProvidersFactory::openProvider(
-    const V2_0::SessionType sessionType, openProvider_cb _hidl_cb) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
-  BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
-  BluetoothAudioProvider* provider = nullptr;
-
-  switch (sessionType) {
-    case V2_0::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
-      provider = &a2dp_software_provider_instance_;
-      break;
-    case V2_0::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
-      provider = &a2dp_offload_provider_instance_;
-      break;
-    case V2_0::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
-      provider = &hearing_aid_provider_instance_;
-      break;
-    default:
-      status = BluetoothAudioStatus::FAILURE;
-  }
-
-  if (provider == nullptr || !provider->isValid(sessionType)) {
-    provider = nullptr;
-    status = BluetoothAudioStatus::FAILURE;
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
-               << ", status=" << toString(status);
-  }
-
-  _hidl_cb(status, provider);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::openProvider_2_1(
-    const V2_1::SessionType sessionType, openProvider_2_1_cb _hidl_cb) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
-  BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
-  BluetoothAudioProvider* provider = nullptr;
-
-  switch (sessionType) {
-    case V2_1::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
-      provider = &a2dp_software_provider_instance_;
-      break;
-    case V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
-      provider = &a2dp_offload_provider_instance_;
-      break;
-    case V2_1::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
-      provider = &hearing_aid_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH:
-      provider = &leaudio_output_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH:
-      provider = &leaudio_input_provider_instance_;
-      break;
-    default:
-      status = BluetoothAudioStatus::FAILURE;
-  }
-
-  if (provider == nullptr || !provider->isValid(sessionType)) {
-    provider = nullptr;
-    status = BluetoothAudioStatus::FAILURE;
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
-               << ", status=" << toString(status);
-  }
-
-  _hidl_cb(status, provider);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::openProvider_2_2(
-    const V2_1::SessionType sessionType, openProvider_2_2_cb _hidl_cb) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
-  BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
-  BluetoothAudioProvider* provider = nullptr;
-
-  switch (sessionType) {
-    case V2_1::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
-      provider = &a2dp_software_provider_instance_;
-      break;
-    case V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
-      provider = &a2dp_offload_provider_instance_;
-      break;
-    case V2_1::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
-      provider = &hearing_aid_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH:
-      provider = &leaudio_output_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
-      provider = &leaudio_offload_output_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH:
-      provider = &leaudio_input_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
-      provider = &leaudio_offload_input_provider_instance_;
-      break;
-    default:
-      status = BluetoothAudioStatus::FAILURE;
-  }
-
-  if (provider == nullptr || !provider->isValid(sessionType)) {
-    provider = nullptr;
-    status = BluetoothAudioStatus::FAILURE;
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
-               << ", status=" << toString(status);
-  }
-
-  _hidl_cb(status, provider);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities(
-    const V2_0::SessionType sessionType, getProviderCapabilities_cb _hidl_cb) {
-  hidl_vec<V2_0::AudioCapabilities> audio_capabilities =
-      hidl_vec<V2_0::AudioCapabilities>(0);
-  if (sessionType == V2_0::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    std::vector<CodecCapabilities> db_codec_capabilities =
-        android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType != V2_0::SessionType::UNKNOWN) {
-    std::vector<::android::hardware::bluetooth::audio::V2_0::PcmParameters>
-        db_pcm_capabilities =
-            android::bluetooth::audio::GetSoftwarePcmCapabilities();
-    if (db_pcm_capabilities.size() == 1) {
-      audio_capabilities.resize(1);
-      audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
-    }
-  }
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
-            << " supports " << audio_capabilities.size() << " codecs";
-  _hidl_cb(audio_capabilities);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities_2_1(
-    const V2_1::SessionType sessionType,
-    getProviderCapabilities_2_1_cb _hidl_cb) {
-  hidl_vec<V2_1::AudioCapabilities> audio_capabilities =
-      hidl_vec<V2_1::AudioCapabilities>(0);
-  if (sessionType == V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    std::vector<CodecCapabilities> db_codec_capabilities =
-        android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType != V2_1::SessionType::UNKNOWN) {
-    std::vector<V2_1::PcmParameters> db_pcm_capabilities =
-        android::bluetooth::audio::GetSoftwarePcmCapabilities_2_1();
-    if (db_pcm_capabilities.size() == 1) {
-      audio_capabilities.resize(1);
-      audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
-    }
-  }
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
-            << " supports " << audio_capabilities.size() << " codecs";
-  _hidl_cb(audio_capabilities);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities_2_2(
-    const V2_1::SessionType sessionType,
-    getProviderCapabilities_2_2_cb _hidl_cb) {
-  hidl_vec<V2_2::AudioCapabilities> audio_capabilities =
-      hidl_vec<V2_2::AudioCapabilities>(0);
-  if (sessionType == V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    std::vector<CodecCapabilities> db_codec_capabilities =
-        android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType == V2_1::SessionType::
-                                LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-             sessionType == V2_1::SessionType::
-                                LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    std::vector<LeAudioCodecCapabilitiesSetting> db_codec_capabilities =
-        android::bluetooth::audio::GetLeAudioOffloadCodecCapabilities(
-            sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].leAudioCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType != V2_1::SessionType::UNKNOWN) {
-    std::vector<V2_1::PcmParameters> db_pcm_capabilities =
-        android::bluetooth::audio::GetSoftwarePcmCapabilities_2_1();
-    if (db_pcm_capabilities.size() == 1) {
-      audio_capabilities.resize(1);
-      audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
-    }
-  }
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
-            << " supports " << audio_capabilities.size() << " codecs";
-  _hidl_cb(audio_capabilities);
-  return Void();
-}
-
-IBluetoothAudioProvidersFactory* HIDL_FETCH_IBluetoothAudioProvidersFactory(
-    const char* /* name */) {
-  return new BluetoothAudioProvidersFactory();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.h b/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.h
deleted file mode 100644
index 4f549d9..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <android/hardware/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.h>
-
-#include "A2dpOffloadAudioProvider.h"
-#include "A2dpSoftwareAudioProvider.h"
-#include "BluetoothAudioProvider.h"
-#include "HearingAidAudioProvider.h"
-#include "LeAudioAudioProvider.h"
-#include "LeAudioOffloadAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-class BluetoothAudioProvidersFactory : public IBluetoothAudioProvidersFactory {
- public:
-  BluetoothAudioProvidersFactory() {}
-
-  Return<void> openProvider(const V2_0::SessionType sessionType,
-                            openProvider_cb _hidl_cb) override;
-
-  Return<void> getProviderCapabilities(
-      const V2_0::SessionType sessionType,
-      getProviderCapabilities_cb _hidl_cb) override;
-
-  Return<void> openProvider_2_1(const V2_1::SessionType sessionType,
-                                openProvider_2_1_cb _hidl_cb) override;
-
-  Return<void> openProvider_2_2(const V2_1::SessionType sessionType,
-                                openProvider_2_2_cb _hidl_cb) override;
-
-  Return<void> getProviderCapabilities_2_1(
-      const V2_1::SessionType sessionType,
-      getProviderCapabilities_2_1_cb _hidl_cb) override;
-
-  Return<void> getProviderCapabilities_2_2(
-      const V2_1::SessionType sessionType,
-      getProviderCapabilities_2_2_cb _hidl_cb) override;
-
- private:
-  static A2dpSoftwareAudioProvider a2dp_software_provider_instance_;
-  static A2dpOffloadAudioProvider a2dp_offload_provider_instance_;
-  static HearingAidAudioProvider hearing_aid_provider_instance_;
-  static LeAudioOutputAudioProvider leaudio_output_provider_instance_;
-  static LeAudioInputAudioProvider leaudio_input_provider_instance_;
-  static LeAudioOffloadOutputAudioProvider
-      leaudio_offload_output_provider_instance_;
-  static LeAudioOffloadInputAudioProvider
-      leaudio_offload_input_provider_instance_;
-};
-
-extern "C" IBluetoothAudioProvidersFactory*
-HIDL_FETCH_IBluetoothAudioProvidersFactory(const char* name);
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp b/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
deleted file mode 100644
index 25e49a1..0000000
--- a/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderHearingAid"
-
-#include "HearingAidAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
-
-static constexpr uint32_t kPcmFrameSize = 4;  // 16 bits per sample / stereo
-static constexpr uint32_t kPcmFrameCount = 128;
-static constexpr uint32_t kRtpFrameSize = kPcmFrameSize * kPcmFrameCount;
-static constexpr uint32_t kRtpFrameCount = 7;  // max counts by 1 tick (20ms)
-static constexpr uint32_t kBufferSize = kRtpFrameSize * kRtpFrameCount;
-static constexpr uint32_t kBufferCount = 1;  // single buffer
-static constexpr uint32_t kDataMqSize = kBufferSize * kBufferCount;
-
-HearingAidAudioProvider::HearingAidAudioProvider()
-    : BluetoothAudioProvider(), mDataMQ(nullptr) {
-  LOG(INFO) << __func__ << " - size of audio buffer " << kDataMqSize
-            << " byte(s)";
-  std::unique_ptr<DataMQ> tempDataMQ(
-      new DataMQ(kDataMqSize, /* EventFlag */ true));
-  if (tempDataMQ && tempDataMQ->isValid()) {
-    mDataMQ = std::move(tempDataMQ);
-    session_type_ = V2_1::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH;
-  } else {
-    ALOGE_IF(!tempDataMQ, "failed to allocate data MQ");
-    ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "data MQ is invalid");
-  }
-}
-
-bool HearingAidAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  return isValid(static_cast<V2_1::SessionType>(sessionType));
-}
-
-bool HearingAidAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_ && mDataMQ && mDataMQ->isValid());
-}
-
-Return<void> HearingAidAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsSoftwarePcmConfigurationValid(
-                 audioConfig.pcmConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
-                 << toString(audioConfig.pcmConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb);
-}
-
-Return<void> HearingAidAudioProvider::onSessionReady(startSession_cb _hidl_cb) {
-  if (mDataMQ && mDataMQ->isValid()) {
-    BluetoothAudioSessionReport_2_2::OnSessionStarted(
-        session_type_, stack_iface_, mDataMQ->getDesc(), audio_config_);
-    _hidl_cb(BluetoothAudioStatus::SUCCESS, *mDataMQ->getDesc());
-  } else {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-  }
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/HearingAidAudioProvider.h b/bluetooth/audio/2.2/default/HearingAidAudioProvider.h
deleted file mode 100644
index 63290b5..0000000
--- a/bluetooth/audio/2.2/default/HearingAidAudioProvider.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-class HearingAidAudioProvider : public BluetoothAudioProvider {
- public:
-  HearingAidAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-
- private:
-  // audio data queue for software encoding
-  std::unique_ptr<DataMQ> mDataMQ;
-
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
deleted file mode 100644
index a7a0023..0000000
--- a/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderLeAudio"
-
-#include "LeAudioAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "AudioPort_2_0_to_2_2_Wrapper.h"
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
-using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-
-static constexpr uint32_t kBufferOutCount = 2;  // two frame buffer
-static constexpr uint32_t kBufferInCount = 2;   // two frame buffer
-
-LeAudioOutputAudioProvider::LeAudioOutputAudioProvider()
-    : LeAudioAudioProvider() {
-  session_type_ = V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH;
-}
-
-LeAudioInputAudioProvider::LeAudioInputAudioProvider()
-    : LeAudioAudioProvider() {
-  session_type_ = V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH;
-}
-
-LeAudioAudioProvider::LeAudioAudioProvider()
-    : BluetoothAudioProvider(), mDataMQ(nullptr) {}
-
-bool LeAudioAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  LOG(ERROR) << __func__ << ", invalid session type for Le Audio provider: "
-             << toString(sessionType);
-
-  return false;
-}
-
-bool LeAudioAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_);
-}
-
-Return<void> LeAudioAudioProvider::startSession_2_1(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  if (audioConfig.getDiscriminator() !=
-      V2_1::AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  AudioConfiguration audioConfig_2_2;
-  audioConfig_2_2.pcmConfig(
-      {.sampleRate =
-           static_cast<V2_1::SampleRate>(audioConfig.pcmConfig().sampleRate),
-       .channelMode = audioConfig.pcmConfig().channelMode,
-       .bitsPerSample = audioConfig.pcmConfig().bitsPerSample,
-       .dataIntervalUs = 0});
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> LeAudioAudioProvider::startSession_2_2(
-    const sp<V2_2::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsSoftwarePcmConfigurationValid_2_1(
-                 audioConfig.pcmConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
-                 << toString(audioConfig.pcmConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  uint32_t kDataMqSize = 0;
-  switch (audioConfig.pcmConfig().sampleRate) {
-    case SampleRate::RATE_8000:
-      kDataMqSize = 8000;
-      break;
-    case SampleRate::RATE_16000:
-      kDataMqSize = 16000;
-      break;
-    case SampleRate::RATE_24000:
-      kDataMqSize = 24000;
-      break;
-    case SampleRate::RATE_32000:
-      kDataMqSize = 32000;
-      break;
-    case SampleRate::RATE_44100:
-      kDataMqSize = 44100;
-      break;
-    case SampleRate::RATE_48000:
-      kDataMqSize = 48000;
-      break;
-    default:
-      LOG(WARNING) << __func__ << " - Unsupported sampling frequency="
-                   << toString(audioConfig.pcmConfig());
-      _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-               DataMQ::Descriptor());
-      return Void();
-  }
-
-  /* Number of samples per millisecond */
-  kDataMqSize = ceil(kDataMqSize / 1000);
-
-  switch (audioConfig.pcmConfig().channelMode) {
-    case ChannelMode::MONO:
-      break;
-    case ChannelMode::STEREO:
-      kDataMqSize *= 2;
-      break;
-    default:
-      /* This should never happen it would be caught while validating
-       * parameters.
-       */
-      break;
-  }
-
-  switch (audioConfig.pcmConfig().bitsPerSample) {
-    case BitsPerSample::BITS_16:
-      kDataMqSize *= 2;
-      break;
-    case BitsPerSample::BITS_24:
-      kDataMqSize *= 3;
-      break;
-    case BitsPerSample::BITS_32:
-      kDataMqSize *= 4;
-      break;
-    default:
-      /* This should never happen it would be caught while validating
-       * parameters.
-       */
-      break;
-  }
-
-  if (session_type_ == V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH)
-    kDataMqSize *= kBufferOutCount;
-  else if (session_type_ ==
-           V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH)
-    kDataMqSize *= kBufferInCount;
-  else
-    LOG(WARNING) << __func__ << ", default single buffer used";
-
-  kDataMqSize *= audioConfig.pcmConfig().dataIntervalUs / 1000;
-
-  LOG(INFO) << __func__ << " - size of audio buffer " << kDataMqSize
-            << " byte(s)";
-
-  std::unique_ptr<DataMQ> tempDataMQ(
-      new DataMQ(kDataMqSize, /* EventFlag */ true));
-  if (tempDataMQ && tempDataMQ->isValid()) {
-    mDataMQ = std::move(tempDataMQ);
-  } else {
-    ALOGE_IF(!tempDataMQ, "failed to allocate data MQ");
-    ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "data MQ is invalid");
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession_2_2(hostIf, audioConfig,
-                                                  _hidl_cb);
-}
-
-Return<void> LeAudioAudioProvider::onSessionReady(startSession_cb _hidl_cb) {
-  if (mDataMQ && mDataMQ->isValid()) {
-    BluetoothAudioSessionReport_2_2::OnSessionStarted(
-        session_type_, stack_iface_, mDataMQ->getDesc(), audio_config_);
-    _hidl_cb(BluetoothAudioStatus::SUCCESS, *mDataMQ->getDesc());
-  } else {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-  }
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioAudioProvider.h b/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
deleted file mode 100644
index 3de1724..0000000
--- a/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <android/hardware/bluetooth/audio/2.2/types.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-class LeAudioAudioProvider : public BluetoothAudioProvider {
- public:
-  LeAudioAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession_2_1(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                                const V2_1::AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
-  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
-                                const AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
- private:
-  /** queue for software encodec/decoded audio data */
-  std::unique_ptr<DataMQ> mDataMQ;
-
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-class LeAudioOutputAudioProvider : public LeAudioAudioProvider {
- public:
-  LeAudioOutputAudioProvider();
-};
-
-class LeAudioInputAudioProvider : public LeAudioAudioProvider {
- public:
-  LeAudioInputAudioProvider();
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
deleted file mode 100644
index 2b0c02f..0000000
--- a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderLeAudioOffload"
-
-#include "LeAudioOffloadAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "AudioPort_2_0_to_2_2_Wrapper.h"
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
-using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-LeAudioOffloadOutputAudioProvider::LeAudioOffloadOutputAudioProvider()
-    : LeAudioOffloadAudioProvider() {
-  session_type_ =
-      V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
-}
-
-LeAudioOffloadInputAudioProvider::LeAudioOffloadInputAudioProvider()
-    : LeAudioOffloadAudioProvider() {
-  session_type_ =
-      V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH;
-}
-
-LeAudioOffloadAudioProvider::LeAudioOffloadAudioProvider()
-    : BluetoothAudioProvider() {}
-
-bool LeAudioOffloadAudioProvider::isValid(
-    const V2_0::SessionType& sessionType) {
-  LOG(ERROR) << __func__
-             << ", invalid session type for Offloaded Le Audio provider: "
-             << toString(sessionType);
-
-  return false;
-}
-
-bool LeAudioOffloadAudioProvider::isValid(
-    const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_);
-}
-
-Return<void> LeAudioOffloadAudioProvider::startSession_2_1(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  if (audioConfig.getDiscriminator() !=
-      V2_1::AudioConfiguration::hidl_discriminator::leAudioCodecConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  AudioConfiguration audioConfig_2_2;
-  audioConfig_2_2.leAudioConfig().mode = LeAudioMode::UNKNOWN;
-  audioConfig_2_2.leAudioConfig().config.unicastConfig() = {
-      .streamMap = {{
-          .streamHandle = 0xFFFF,
-          .audioChannelAllocation =
-              audioConfig.leAudioCodecConfig().audioChannelAllocation,
-      }},
-      .peerDelay = 0,
-      .lc3Config = audioConfig.leAudioCodecConfig().lc3Config};
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> LeAudioOffloadAudioProvider::startSession_2_2(
-    const sp<V2_2::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::leAudioConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  if (!android::bluetooth::audio::IsOffloadLeAudioConfigurationValid(
-          session_type_, audioConfig.leAudioConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported LC3 Offloaded Configuration="
-                 << toString(audioConfig.leAudioConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession_2_2(hostIf, audioConfig,
-                                                  _hidl_cb);
-}
-
-Return<void> LeAudioOffloadAudioProvider::onSessionReady(
-    startSession_cb _hidl_cb) {
-  BluetoothAudioSessionReport_2_2::OnSessionStarted(session_type_, stack_iface_,
-                                                    nullptr, audio_config_);
-  _hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor());
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.h b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.h
deleted file mode 100644
index fe58de5..0000000
--- a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-class LeAudioOffloadAudioProvider : public BluetoothAudioProvider {
- public:
-  LeAudioOffloadAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession_2_1(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                                const V2_1::AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
-  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
-                                const AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
- private:
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-class LeAudioOffloadOutputAudioProvider : public LeAudioOffloadAudioProvider {
- public:
-  LeAudioOffloadOutputAudioProvider();
-};
-
-class LeAudioOffloadInputAudioProvider : public LeAudioOffloadAudioProvider {
- public:
-  LeAudioOffloadInputAudioProvider();
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/types.hal b/bluetooth/audio/2.2/types.hal
deleted file mode 100644
index 6755899..0000000
--- a/bluetooth/audio/2.2/types.hal
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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.bluetooth.audio@2.2;
-
-import @2.1::Lc3Parameters;
-import @2.1::PcmParameters;
-import @2.0::CodecConfiguration;
-import @2.0::CodecCapabilities;
-import @2.1::CodecType;
-
-enum LeAudioMode : uint8_t {
-    UNKNOWN = 0x00,
-    UNICAST = 0x01,
-    BROADCAST = 0x02,
-};
-
-enum AudioLocation : uint8_t {
-  UNKNOWN = 0,
-  FRONT_LEFT = 1,
-  FRONT_RIGHT = 2,
-};
-
-struct UnicastStreamMap {
-    /* The connection handle used for a unicast or a broadcast group. */
-    uint16_t streamHandle;
-    /* Audio channel allocation is  a bit field, each enabled bit means that given audio direction,
-     * i.e. "left", or "right" is used. Ordering of audio channels comes from the least significant
-     * bit to the most significant bit. */
-    uint32_t audioChannelAllocation;
-};
-
-struct BroadcastStreamMap {
-    /* The connection handle used for a unicast or a broadcast group. */
-    uint16_t streamHandle;
-    /* Audio channel allocation is  a bit field, each enabled bit means that given audio direction,
-     * i.e. "left", or "right" is used. Ordering of audio channels comes from the least significant
-     * bit to the most significant bit. */
-    uint32_t audioChannelAllocation;
-    Lc3Parameters lc3Config;
-};
-
-struct UnicastConfig {
-    vec<UnicastStreamMap> streamMap;
-    uint32_t peerDelay;
-    Lc3Parameters lc3Config;
-};
-
-struct BroadcastConfig {
-    vec<BroadcastStreamMap> streamMap;
-};
-
-struct LeAudioConfiguration {
-    /* The mode of the LE audio */
-    LeAudioMode mode;
-    safe_union CodecConfig {
-        UnicastConfig unicastConfig;
-        BroadcastConfig broadcastConfig;
-    } config;
-};
-
-/** Used to configure either a Hardware or Software Encoding session based on session type */
-safe_union AudioConfiguration {
-    PcmParameters pcmConfig;
-    CodecConfiguration codecConfig;
-    LeAudioConfiguration leAudioConfig;
-};
-
-/** Used to specify the capabilities of the different session types */
-safe_union AudioCapabilities {
-    PcmParameters pcmCapabilities;
-    CodecCapabilities codecCapabilities;
-    LeAudioCodecCapabilitiesSetting leAudioCapabilities;
-};
-
-/**
- * Used to specify the le audio capabilities for unicast and broadcast hardware offload.
- */
-struct LeAudioCodecCapabilitiesSetting{
-    UnicastCapability unicastEncodeCapability;
-    UnicastCapability unicastDecodeCapability;
-    BroadcastCapability broadcastCapability;
-};
-
-/**
- * Used to specify the le audio unicast codec capabilities for hardware offload.
- */
-struct UnicastCapability {
-    CodecType codecType;
-    AudioLocation supportedChannel;
-
-    // The number of connected device
-    uint8_t deviceCount;
-
-    // Supported channel count for each device
-    uint8_t channelCountPerDevice;
-
-    // Should use safe union when there is more than one codec
-    Lc3Parameters capabilities;
-};
-
-/**
- * Used to specify the le audio broadcast codec capabilities for hardware offload.
- */
-struct BroadcastCapability {
-    CodecType codecType;
-    AudioLocation supportedChannel;
-
-    // Supported channel count for each stream
-    uint8_t channelCountPerStream;
-
-    // Should use safe union when there is more than one codec
-    vec<Lc3Parameters> capabilities;
-};
diff --git a/bluetooth/audio/2.2/default/OWNERS b/bluetooth/audio/OWNERS
similarity index 98%
rename from bluetooth/audio/2.2/default/OWNERS
rename to bluetooth/audio/OWNERS
index 17ea464..a8e9bda 100644
--- a/bluetooth/audio/2.2/default/OWNERS
+++ b/bluetooth/audio/OWNERS
@@ -1,4 +1,4 @@
 include platform/packages/modules/Bluetooth:/OWNERS
 
 cheneyni@google.com
-aliceypkuo@google.com
\ No newline at end of file
+aliceypkuo@google.com
diff --git a/bluetooth/audio/aidl/Android.bp b/bluetooth/audio/aidl/Android.bp
index 5107240..52671b8 100644
--- a/bluetooth/audio/aidl/Android.bp
+++ b/bluetooth/audio/aidl/Android.bp
@@ -47,6 +47,7 @@
                 "//apex_available:platform",
                 "com.android.bluetooth",
             ],
+            min_sdk_version: "31",
         },
     },
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveCapabilities.aidl
similarity index 76%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveCapabilities.aidl
index 5fa3926..4e5dfe6 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveCapabilities.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,12 +33,14 @@
 
 package android.hardware.bluetooth.audio;
 @VintfStability
-parcelable BroadcastConfiguration {
-  android.hardware.bluetooth.audio.BroadcastConfiguration.BroadcastStreamMap[] streamMap;
-  @VintfStability
-  parcelable BroadcastStreamMap {
-    char streamHandle;
-    int audioChannelAllocation;
-    android.hardware.bluetooth.audio.LeAudioCodecConfiguration leAudioCodecConfig;
-  }
+parcelable AptxAdaptiveCapabilities {
+  int[] sampleRateHz;
+  android.hardware.bluetooth.audio.AptxAdaptiveChannelMode[] channelMode;
+  byte[] bitsPerSample;
+  android.hardware.bluetooth.audio.AptxMode[] aptxMode;
+  android.hardware.bluetooth.audio.AptxSinkBuffering sinkBufferingMs;
+  android.hardware.bluetooth.audio.AptxAdaptiveTimeToPlay ttp;
+  android.hardware.bluetooth.audio.AptxAdaptiveInputMode inputMode;
+  int inputFadeDurationMs;
+  byte[] aptxAdaptiveConfigStream;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveChannelMode.aidl
similarity index 89%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveChannelMode.aidl
index 766f637..0499b70 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveChannelMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,9 +32,11 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+@Backing(type="int") @VintfStability
+enum AptxAdaptiveChannelMode {
+  JOINT_STEREO = 0,
+  MONO = 1,
+  DUAL_MONO = 2,
+  TWS_STEREO = 4,
+  UNKNOWN = 255,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveConfiguration.aidl
similarity index 76%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveConfiguration.aidl
index 5fa3926..aab0521 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveConfiguration.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,12 +33,14 @@
 
 package android.hardware.bluetooth.audio;
 @VintfStability
-parcelable BroadcastConfiguration {
-  android.hardware.bluetooth.audio.BroadcastConfiguration.BroadcastStreamMap[] streamMap;
-  @VintfStability
-  parcelable BroadcastStreamMap {
-    char streamHandle;
-    int audioChannelAllocation;
-    android.hardware.bluetooth.audio.LeAudioCodecConfiguration leAudioCodecConfig;
-  }
+parcelable AptxAdaptiveConfiguration {
+  int sampleRateHz;
+  android.hardware.bluetooth.audio.AptxAdaptiveChannelMode channelMode;
+  byte bitsPerSample;
+  android.hardware.bluetooth.audio.AptxMode aptxMode;
+  android.hardware.bluetooth.audio.AptxSinkBuffering sinkBufferingMs;
+  android.hardware.bluetooth.audio.AptxAdaptiveTimeToPlay ttp;
+  android.hardware.bluetooth.audio.AptxAdaptiveInputMode inputMode;
+  int inputFadeDurationMs;
+  byte[] aptxAdaptiveConfigStream;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveInputMode.aidl
similarity index 91%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveInputMode.aidl
index 766f637..f702939 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveInputMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,9 +32,8 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+@Backing(type="int") @VintfStability
+enum AptxAdaptiveInputMode {
+  STEREO = 0,
+  DUAL_MONO = 1,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveTimeToPlay.aidl
similarity index 87%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveTimeToPlay.aidl
index 766f637..3560666 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveTimeToPlay.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,9 +32,12 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+@VintfStability
+parcelable AptxAdaptiveTimeToPlay {
+  byte lowLowLatency;
+  byte highLowLatency;
+  byte lowHighQuality;
+  byte highHighQuality;
+  byte lowTws;
+  byte highTws;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxMode.aidl
similarity index 90%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxMode.aidl
index 766f637..d5dd9d9 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,9 +32,10 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
+@Backing(type="int") @VintfStability
+enum AptxMode {
   UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+  HIGH_QUALITY = 4096,
+  LOW_LATENCY = 8192,
+  ULTRA_LOW_LATENCY = 16384,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxSinkBuffering.aidl
similarity index 88%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxSinkBuffering.aidl
index 766f637..527418e 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxSinkBuffering.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,9 +32,12 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
-  UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+@VintfStability
+parcelable AptxSinkBuffering {
+  byte minLowLatency;
+  byte maxLowLatency;
+  byte minHighQuality;
+  byte maxHighQuality;
+  byte minTws;
+  byte maxTws;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl
index 50b54c3..3abfb31 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl
@@ -37,4 +37,5 @@
   android.hardware.bluetooth.audio.PcmConfiguration pcmConfig;
   android.hardware.bluetooth.audio.CodecConfiguration a2dpConfig;
   android.hardware.bluetooth.audio.LeAudioConfiguration leAudioConfig;
+  android.hardware.bluetooth.audio.LeAudioBroadcastConfiguration leAudioBroadcastConfig;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl
index 7c0d825..c20c057 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl
@@ -38,4 +38,5 @@
   SUCCESS = 1,
   UNSUPPORTED_CODEC_CONFIGURATION = 2,
   FAILURE = 3,
+  RECONFIGURATION = 4,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecCapabilities.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecCapabilities.aidl
index 948c04a..6efdcb7 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecCapabilities.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecCapabilities.aidl
@@ -46,6 +46,7 @@
     android.hardware.bluetooth.audio.AacCapabilities aacCapabilities;
     android.hardware.bluetooth.audio.LdacCapabilities ldacCapabilities;
     android.hardware.bluetooth.audio.AptxCapabilities aptxCapabilities;
+    android.hardware.bluetooth.audio.AptxAdaptiveCapabilities aptxAdaptiveCapabilities;
     android.hardware.bluetooth.audio.Lc3Capabilities lc3Capabilities;
     android.hardware.bluetooth.audio.CodecCapabilities.VendorCapabilities vendorCapabilities;
   }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecConfiguration.aidl
index 32bccd8..77a6b1b 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecConfiguration.aidl
@@ -51,6 +51,7 @@
     android.hardware.bluetooth.audio.AacConfiguration aacConfig;
     android.hardware.bluetooth.audio.LdacConfiguration ldacConfig;
     android.hardware.bluetooth.audio.AptxConfiguration aptxConfig;
+    android.hardware.bluetooth.audio.AptxAdaptiveConfiguration aptxAdaptiveConfig;
     android.hardware.bluetooth.audio.Lc3Configuration lc3Config;
     android.hardware.bluetooth.audio.CodecConfiguration.VendorConfiguration vendorConfig;
   }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecType.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecType.aidl
index 3a5f951..1522cb4 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecType.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecType.aidl
@@ -42,4 +42,5 @@
   LDAC = 5,
   LC3 = 6,
   VENDOR = 7,
+  APTX_ADAPTIVE = 8,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl
index 9a1557a..d364371 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl
@@ -35,9 +35,10 @@
 @VintfStability
 interface IBluetoothAudioPort {
   android.hardware.bluetooth.audio.PresentationPosition getPresentationPosition();
-  void startStream();
+  void startStream(boolean isLowLatency);
   void stopStream();
   void suspendStream();
   void updateSourceMetadata(in android.hardware.audio.common.SourceMetadata sourceMetadata);
   void updateSinkMetadata(in android.hardware.audio.common.SinkMetadata sinkMetadata);
+  void setLatencyMode(in android.hardware.bluetooth.audio.LatencyMode latencyMode);
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
index 0dcba2e..267af0f 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
@@ -35,8 +35,9 @@
 @VintfStability
 interface IBluetoothAudioProvider {
   void endSession();
-  android.hardware.common.fmq.MQDescriptor<byte,android.hardware.common.fmq.SynchronizedReadWrite> startSession(in android.hardware.bluetooth.audio.IBluetoothAudioPort hostIf, in android.hardware.bluetooth.audio.AudioConfiguration audioConfig);
+  android.hardware.common.fmq.MQDescriptor<byte,android.hardware.common.fmq.SynchronizedReadWrite> startSession(in android.hardware.bluetooth.audio.IBluetoothAudioPort hostIf, in android.hardware.bluetooth.audio.AudioConfiguration audioConfig, in android.hardware.bluetooth.audio.LatencyMode[] supportedLatencyModes);
   void streamStarted(in android.hardware.bluetooth.audio.BluetoothAudioStatus status);
   void streamSuspended(in android.hardware.bluetooth.audio.BluetoothAudioStatus status);
   void updateAudioConfiguration(in android.hardware.bluetooth.audio.AudioConfiguration audioConfig);
+  void setLowLatencyModeAllowed(in boolean allowed);
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LatencyMode.aidl
similarity index 92%
rename from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
rename to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LatencyMode.aidl
index 766f637..5583679 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LatencyMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,9 +32,9 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.bluetooth.audio;
-@Backing(type="byte") @VintfStability
-enum LeAudioMode {
+@Backing(type="int") @VintfStability
+enum LatencyMode {
   UNKNOWN = 0,
-  UNICAST = 1,
-  BROADCAST = 2,
+  LOW_LATENCY = 1,
+  FREE = 2,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioBroadcastConfiguration.aidl
similarity index 90%
rename from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
rename to bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioBroadcastConfiguration.aidl
index 5fa3926..7d53b0c 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioBroadcastConfiguration.aidl
@@ -33,8 +33,9 @@
 
 package android.hardware.bluetooth.audio;
 @VintfStability
-parcelable BroadcastConfiguration {
-  android.hardware.bluetooth.audio.BroadcastConfiguration.BroadcastStreamMap[] streamMap;
+parcelable LeAudioBroadcastConfiguration {
+  android.hardware.bluetooth.audio.CodecType codecType;
+  android.hardware.bluetooth.audio.LeAudioBroadcastConfiguration.BroadcastStreamMap[] streamMap;
   @VintfStability
   parcelable BroadcastStreamMap {
     char streamHandle;
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
index 2bc1791..edb6795 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
@@ -34,12 +34,13 @@
 package android.hardware.bluetooth.audio;
 @VintfStability
 parcelable LeAudioConfiguration {
-  android.hardware.bluetooth.audio.LeAudioMode mode;
-  android.hardware.bluetooth.audio.LeAudioConfiguration.LeAudioModeConfig modeConfig;
   android.hardware.bluetooth.audio.CodecType codecType;
+  android.hardware.bluetooth.audio.LeAudioConfiguration.StreamMap[] streamMap;
+  int peerDelayUs;
+  android.hardware.bluetooth.audio.LeAudioCodecConfiguration leAudioCodecConfig;
   @VintfStability
-  union LeAudioModeConfig {
-    android.hardware.bluetooth.audio.UnicastConfiguration unicastConfig;
-    android.hardware.bluetooth.audio.BroadcastConfiguration broadcastConfig;
+  parcelable StreamMap {
+    char streamHandle;
+    int audioChannelAllocation;
   }
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl
index 72d7fb2..baec9c2 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl
@@ -42,4 +42,6 @@
   LE_AUDIO_SOFTWARE_DECODING_DATAPATH = 5,
   LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH = 6,
   LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH = 7,
+  LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH = 8,
+  LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH = 9,
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/UnicastConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/UnicastConfiguration.aidl
deleted file mode 100644
index b385763..0000000
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/UnicastConfiguration.aidl
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-///////////////////////////////////////////////////////////////////////////////
-// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
-///////////////////////////////////////////////////////////////////////////////
-
-// This file is a snapshot of an AIDL file. Do not edit it manually. There are
-// two cases:
-// 1). this is a frozen version file - do not edit this in any case.
-// 2). this is a 'current' file. If you make a backwards compatible change to
-//     the interface (from the latest frozen version), the build system will
-//     prompt you to update this file with `m <name>-update-api`.
-//
-// You must not make a backward incompatible change to any AIDL file built
-// with the aidl_interface module type with versions property set. The module
-// type is used to build AIDL files in a way that they can be used across
-// independently updatable components of the system. If a device is shipped
-// with such a backward incompatible change, it has a high risk of breaking
-// later when a module using the interface is updated, e.g., Mainline modules.
-
-package android.hardware.bluetooth.audio;
-@VintfStability
-parcelable UnicastConfiguration {
-  android.hardware.bluetooth.audio.UnicastConfiguration.UnicastStreamMap[] streamMap;
-  int peerDelay;
-  android.hardware.bluetooth.audio.LeAudioCodecConfiguration leAudioCodecConfig;
-  @VintfStability
-  parcelable UnicastStreamMap {
-    char streamHandle;
-    int audioChannelAllocation;
-  }
-}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveCapabilities.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveCapabilities.aidl
new file mode 100644
index 0000000..6a56704
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveCapabilities.aidl
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.AptxAdaptiveChannelMode;
+import android.hardware.bluetooth.audio.AptxMode;
+import android.hardware.bluetooth.audio.AptxSinkBuffering;
+import android.hardware.bluetooth.audio.AptxAdaptiveTimeToPlay;
+import android.hardware.bluetooth.audio.AptxAdaptiveInputMode;
+
+
+@VintfStability
+parcelable AptxAdaptiveCapabilities {
+    int[] sampleRateHz;
+    AptxAdaptiveChannelMode[] channelMode;
+    byte[] bitsPerSample;
+    AptxMode[] aptxMode;
+    AptxSinkBuffering sinkBufferingMs;
+    AptxAdaptiveTimeToPlay ttp;
+    AptxAdaptiveInputMode inputMode;
+    int inputFadeDurationMs;
+    byte[] aptxAdaptiveConfigStream;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveChannelMode.aidl
similarity index 62%
copy from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveChannelMode.aidl
index 2cf019e..c5e89b1 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveChannelMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,15 @@
 package android.hardware.bluetooth.audio;
 
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+@Backing(type="int")
+enum AptxAdaptiveChannelMode {
+    /* Joint Stereo - default mode */
+    JOINT_STEREO = 0,
+    /* Legacy Mono */
+    MONO = 1,
+    /* Two streams L & R in a single channel (TWS) */
+    DUAL_MONO = 2,
+    /* Stereo - For TWS+ where L and R are different links */
+    TWS_STEREO = 4,
+    UNKNOWN = 0xFF,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveConfiguration.aidl
new file mode 100644
index 0000000..84c3119
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveConfiguration.aidl
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.AptxAdaptiveChannelMode;
+import android.hardware.bluetooth.audio.AptxMode;
+import android.hardware.bluetooth.audio.AptxSinkBuffering;
+import android.hardware.bluetooth.audio.AptxAdaptiveTimeToPlay;
+import android.hardware.bluetooth.audio.AptxAdaptiveInputMode;
+
+@VintfStability
+parcelable AptxAdaptiveConfiguration {
+    int sampleRateHz;
+    AptxAdaptiveChannelMode channelMode;
+    byte bitsPerSample;
+    AptxMode aptxMode;
+    AptxSinkBuffering sinkBufferingMs;
+    AptxAdaptiveTimeToPlay ttp;
+    AptxAdaptiveInputMode inputMode;
+    int inputFadeDurationMs;
+    byte[] aptxAdaptiveConfigStream;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveInputMode.aidl
similarity index 81%
copy from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveInputMode.aidl
index 2cf019e..c2f0fc9 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveInputMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,8 @@
 package android.hardware.bluetooth.audio;
 
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+@Backing(type="int")
+enum AptxAdaptiveInputMode {
+    STEREO = 0x00,
+    DUAL_MONO = 0x01,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveTimeToPlay.aidl
similarity index 73%
copy from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveTimeToPlay.aidl
index 2cf019e..9bcf1a4 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveTimeToPlay.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,11 @@
 package android.hardware.bluetooth.audio;
 
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+parcelable AptxAdaptiveTimeToPlay {
+    byte lowLowLatency;
+    byte highLowLatency;
+    byte lowHighQuality;
+    byte highHighQuality;
+    byte lowTws;
+    byte highTws;
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxMode.aidl
similarity index 76%
copy from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxMode.aidl
index 2cf019e..2422d69 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,13 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package android.hardware.bluetooth.audio;
-
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+@Backing(type="int")
+enum AptxMode {
+    UNKNOWN = 0x00,
+    HIGH_QUALITY = 0x1000,
+    LOW_LATENCY = 0x2000,
+    ULTRA_LOW_LATENCY = 0x4000,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxSinkBuffering.aidl
similarity index 74%
copy from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxSinkBuffering.aidl
index 2cf019e..3593b5d 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxSinkBuffering.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,12 @@
 package android.hardware.bluetooth.audio;
 
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+parcelable AptxSinkBuffering {
+    byte minLowLatency;
+    byte maxLowLatency;
+    byte minHighQuality;
+    byte maxHighQuality;
+    byte minTws;
+    byte maxTws;
 }
+
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl
index 81b41dc..a06337e 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl
@@ -17,6 +17,7 @@
 package android.hardware.bluetooth.audio;
 
 import android.hardware.bluetooth.audio.CodecConfiguration;
+import android.hardware.bluetooth.audio.LeAudioBroadcastConfiguration;
 import android.hardware.bluetooth.audio.LeAudioConfiguration;
 import android.hardware.bluetooth.audio.PcmConfiguration;
 
@@ -28,4 +29,5 @@
     PcmConfiguration pcmConfig;
     CodecConfiguration a2dpConfig;
     LeAudioConfiguration leAudioConfig;
+    LeAudioBroadcastConfiguration leAudioBroadcastConfig;
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl
index ec78445..9ddafe9 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BluetoothAudioStatus.aidl
@@ -23,5 +23,6 @@
     SUCCESS = 1,
     UNSUPPORTED_CODEC_CONFIGURATION = 2,
     // General failure
-    FAILURE = 3
+    FAILURE = 3,
+    RECONFIGURATION = 4,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastCapability.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastCapability.aidl
index cb63f88..f1301fb 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastCapability.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastCapability.aidl
@@ -19,7 +19,6 @@
 import android.hardware.bluetooth.audio.AudioLocation;
 import android.hardware.bluetooth.audio.CodecType;
 import android.hardware.bluetooth.audio.Lc3Capabilities;
-import android.hardware.bluetooth.audio.LeAudioMode;
 
 /**
  * Used to specify the le audio broadcast codec capabilities for hardware offload.
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecCapabilities.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecCapabilities.aidl
index 41e2431..9fcdf1c 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecCapabilities.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecCapabilities.aidl
@@ -18,6 +18,7 @@
 
 import android.hardware.bluetooth.audio.AacCapabilities;
 import android.hardware.bluetooth.audio.AptxCapabilities;
+import android.hardware.bluetooth.audio.AptxAdaptiveCapabilities;
 import android.hardware.bluetooth.audio.CodecType;
 import android.hardware.bluetooth.audio.Lc3Capabilities;
 import android.hardware.bluetooth.audio.LdacCapabilities;
@@ -39,6 +40,7 @@
         AacCapabilities aacCapabilities;
         LdacCapabilities ldacCapabilities;
         AptxCapabilities aptxCapabilities;
+        AptxAdaptiveCapabilities aptxAdaptiveCapabilities;
         Lc3Capabilities lc3Capabilities;
         VendorCapabilities vendorCapabilities;
     }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecConfiguration.aidl
index 3679537..5ed12e3 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecConfiguration.aidl
@@ -18,6 +18,7 @@
 
 import android.hardware.bluetooth.audio.AacConfiguration;
 import android.hardware.bluetooth.audio.AptxConfiguration;
+import android.hardware.bluetooth.audio.AptxAdaptiveConfiguration;
 import android.hardware.bluetooth.audio.CodecType;
 import android.hardware.bluetooth.audio.Lc3Configuration;
 import android.hardware.bluetooth.audio.LdacConfiguration;
@@ -41,6 +42,7 @@
         AacConfiguration aacConfig;
         LdacConfiguration ldacConfig;
         AptxConfiguration aptxConfig;
+        AptxAdaptiveConfiguration aptxAdaptiveConfig;
         Lc3Configuration lc3Config;
         VendorConfiguration vendorConfig;
     }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecType.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecType.aidl
index 9c33081..386876e 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecType.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecType.aidl
@@ -27,4 +27,5 @@
     LDAC,
     LC3,
     VENDOR,
+    APTX_ADAPTIVE,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl
index 827f57d..4ddf645 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioPort.aidl
@@ -18,6 +18,8 @@
 
 import android.hardware.audio.common.SinkMetadata;
 import android.hardware.audio.common.SourceMetadata;
+import android.hardware.bluetooth.audio.CodecType;
+import android.hardware.bluetooth.audio.LatencyMode;
 import android.hardware.bluetooth.audio.PresentationPosition;
 
 /**
@@ -45,8 +47,11 @@
      * This indicates that the caller of this method has opened the data path
      * and wants to start an audio stream. The caller must wait for a
      * IBluetoothAudioProvider.streamStarted(Status) call.
+     *
+     * @param isLowLatency true if the stream being started with the latency
+     * control mechanism.
      */
-    void startStream();
+    void startStream(boolean isLowLatency);
 
     /**
      * This indicates that the caller of this method wants to stop the audio
@@ -78,4 +83,11 @@
      * @param sinkMetadata as passed from Audio Framework
      */
     void updateSinkMetadata(in SinkMetadata sinkMetadata);
+
+    /**
+     * Called when latency mode is changed.
+     *
+     * @param latencyMode latency mode from audio
+     */
+    void setLatencyMode(in LatencyMode latencyMode);
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
index 6f88f30..d5c051e 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
@@ -19,6 +19,7 @@
 import android.hardware.bluetooth.audio.AudioConfiguration;
 import android.hardware.bluetooth.audio.BluetoothAudioStatus;
 import android.hardware.bluetooth.audio.IBluetoothAudioPort;
+import android.hardware.bluetooth.audio.LatencyMode;
 import android.hardware.common.fmq.MQDescriptor;
 import android.hardware.common.fmq.SynchronizedReadWrite;
 
@@ -50,6 +51,8 @@
      *    device. The PCM parameters are set if software based encoding,
      *    otherwise the correct codec configuration is used for hardware
      *    encoding.
+     * @param supportedLatencyModes latency modes supported by the active
+     * remote device
      *
      * @return The fast message queue for audio data from/to this
      *    provider. Audio data will be in PCM format as specified by the
@@ -57,8 +60,8 @@
      *    from/to hardware or on failure
      */
     MQDescriptor<byte, SynchronizedReadWrite> startSession(
-            in IBluetoothAudioPort hostIf, in AudioConfiguration audioConfig);
-
+            in IBluetoothAudioPort hostIf, in AudioConfiguration audioConfig,
+            in LatencyMode[] supportedLatencyModes);
     /**
      * Callback for IBluetoothAudioPort.startStream()
      *
@@ -82,4 +85,12 @@
      *    encoding.
      */
     void updateAudioConfiguration(in AudioConfiguration audioConfig);
+
+    /**
+     * Called when the supported latency mode is updated.
+     *
+     * @param allowed If the peripheral devices can't keep up with low latency
+     * mode, the API will be called with supported is false.
+     */
+    void setLowLatencyModeAllowed(in boolean allowed);
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LatencyMode.aidl
similarity index 84%
rename from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
rename to bluetooth/audio/aidl/android/hardware/bluetooth/audio/LatencyMode.aidl
index 2cf019e..0c354f7 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LatencyMode.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,9 @@
 package android.hardware.bluetooth.audio;
 
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
+@Backing(type="int")
+enum LatencyMode {
     UNKNOWN,
-    UNICAST,
-    BROADCAST,
+    LOW_LATENCY,
+    FREE,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioBroadcastConfiguration.aidl
similarity index 87%
rename from bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
rename to bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioBroadcastConfiguration.aidl
index cfc9d3a..e9a1a0c 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/BroadcastConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioBroadcastConfiguration.aidl
@@ -16,14 +16,15 @@
 
 package android.hardware.bluetooth.audio;
 
+import android.hardware.bluetooth.audio.CodecType;
 import android.hardware.bluetooth.audio.LeAudioCodecConfiguration;
 
 @VintfStability
-parcelable BroadcastConfiguration {
+parcelable LeAudioBroadcastConfiguration {
     @VintfStability
     parcelable BroadcastStreamMap {
         /*
-         * The connection handle used for a unicast or a broadcast group.
+         * The connection handle used for a broadcast group.
          * Range: 0x0000 to 0xEFFF
          */
         char streamHandle;
@@ -35,5 +36,6 @@
         int audioChannelAllocation;
         LeAudioCodecConfiguration leAudioCodecConfig;
     }
+    CodecType codecType;
     BroadcastStreamMap[] streamMap;
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
index 515794b..0d1e3de 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
@@ -16,22 +16,28 @@
 
 package android.hardware.bluetooth.audio;
 
-import android.hardware.bluetooth.audio.BroadcastConfiguration;
 import android.hardware.bluetooth.audio.CodecType;
-import android.hardware.bluetooth.audio.LeAudioMode;
-import android.hardware.bluetooth.audio.UnicastConfiguration;
+import android.hardware.bluetooth.audio.LeAudioCodecConfiguration;
 
 @VintfStability
 parcelable LeAudioConfiguration {
     @VintfStability
-    union LeAudioModeConfig {
-        UnicastConfiguration unicastConfig;
-        BroadcastConfiguration broadcastConfig;
+    parcelable StreamMap {
+        /*
+         * The connection handle used for a unicast group.
+         * Range: 0x0000 to 0xEFFF
+         */
+        char streamHandle;
+        /*
+         * Audio channel allocation is  a bit field, each enabled bit means that given audio
+         * direction, i.e. "left", or "right" is used. Ordering of audio channels comes from the
+         * least significant bit to the most significant bit. The valus follows the Bluetooth SIG
+         * Audio Location assigned number.
+         */
+        int audioChannelAllocation;
     }
-    /*
-     * The mode of the LE audio
-     */
-    LeAudioMode mode;
-    LeAudioModeConfig modeConfig;
     CodecType codecType;
+    StreamMap[] streamMap;
+    int peerDelayUs;
+    LeAudioCodecConfiguration leAudioCodecConfig;
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl
index 30faae3..95beee7 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl
@@ -33,19 +33,33 @@
      */
     HEARING_AID_SOFTWARE_ENCODING_DATAPATH,
     /**
-     * Used when encoded by Bluetooth Stack and streaming to LE Audio device
+     * Used when audio is encoded by the Bluetooth Stack and is streamed to LE
+     * Audio unicast device.
      */
     LE_AUDIO_SOFTWARE_ENCODING_DATAPATH,
     /**
-     * Used when decoded by Bluetooth Stack and streaming to audio framework
+     * Used when audio is decoded by the Bluetooth Stack and is streamed to LE
+     * Audio unicast device.
      */
     LE_AUDIO_SOFTWARE_DECODING_DATAPATH,
     /**
-     * Encoding is done by HW an there is control only
+     * Used when audio is encoded by hardware offload and is streamed to LE
+     * Audio unicast device. This is a control path only.
      */
     LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
     /**
-     * Decoding is done by HW an there is control only
+     * Used when audio is decoded by hardware offload and is streamed to LE
+     * Audio unicast device. This is a control path only.
      */
     LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+    /**
+     * Used when audio is encoded by the Bluetooth stack and is streamed to LE
+     * Audio broadcast channels.
+     */
+    LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH,
+    /**
+     * Used when audio is encoded by hardware offload and is streamed to LE
+     * Audio broadcast channels. This is a control path only.
+     */
+    LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastCapability.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastCapability.aidl
index cd8a4c1..f8a924a 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastCapability.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastCapability.aidl
@@ -19,7 +19,6 @@
 import android.hardware.bluetooth.audio.AudioLocation;
 import android.hardware.bluetooth.audio.CodecType;
 import android.hardware.bluetooth.audio.Lc3Capabilities;
-import android.hardware.bluetooth.audio.LeAudioMode;
 
 /**
  * Used to specify the le audio unicast codec capabilities for hardware offload.
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastConfiguration.aidl
deleted file mode 100644
index 7be2c5b..0000000
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastConfiguration.aidl
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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.bluetooth.audio;
-
-import android.hardware.bluetooth.audio.LeAudioCodecConfiguration;
-
-@VintfStability
-parcelable UnicastConfiguration {
-    @VintfStability
-    parcelable UnicastStreamMap {
-        /*
-         * The connection handle used for a unicast or a broadcast group.
-         * Range: 0x0000 to 0xEFFF
-         */
-        char streamHandle;
-        /*
-         * Audio channel allocation is  a bit field, each enabled bit means that given audio
-         * direction, i.e. "left", or "right" is used. Ordering of audio channels comes from the
-         * least significant bit to the most significant bit. The valus follows the Bluetooth SIG
-         * Audio Location assigned number.
-         */
-        int audioChannelAllocation;
-    }
-    UnicastStreamMap[] streamMap;
-    int peerDelay;
-    LeAudioCodecConfiguration leAudioCodecConfig;
-}
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp
index fc8a911..866776e 100644
--- a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp
@@ -38,7 +38,10 @@
 
 ndk::ScopedAStatus A2dpOffloadAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
-    const AudioConfiguration& audio_config, DataMQDesc* _aidl_return) {
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes,
+    DataMQDesc* _aidl_return) {
+  latency_modes_ = latency_modes;
   if (audio_config.getTag() != AudioConfiguration::a2dpConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
@@ -52,8 +55,8 @@
     *_aidl_return = DataMQDesc();
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
-  return BluetoothAudioProvider::startSession(host_if, audio_config,
-                                              _aidl_return);
+  return BluetoothAudioProvider::startSession(
+      host_if, audio_config, latency_modes, _aidl_return);
 }
 
 ndk::ScopedAStatus A2dpOffloadAudioProvider::onSessionReady(
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h
index 5934f5b..4621e85 100644
--- a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h
+++ b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h
@@ -32,7 +32,9 @@
 
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
-      const AudioConfiguration& audio_config, DataMQDesc* _aidl_return);
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes,
+      DataMQDesc* _aidl_return);
 
  private:
   ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
diff --git a/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.cpp b/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.cpp
index 5a413e0..d2f58f3 100644
--- a/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.cpp
@@ -61,7 +61,10 @@
 
 ndk::ScopedAStatus A2dpSoftwareAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
-    const AudioConfiguration& audio_config, DataMQDesc* _aidl_return) {
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes,
+    DataMQDesc* _aidl_return) {
+  latency_modes_ = latency_modes;
   if (audio_config.getTag() != AudioConfiguration::pcmConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
@@ -77,8 +80,8 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
 
-  return BluetoothAudioProvider::startSession(host_if, audio_config,
-                                              _aidl_return);
+  return BluetoothAudioProvider::startSession(
+      host_if, audio_config, latency_modes, _aidl_return);
 }
 
 ndk::ScopedAStatus A2dpSoftwareAudioProvider::onSessionReady(
diff --git a/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.h b/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.h
index 3bc0a13..10f533a 100644
--- a/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.h
+++ b/bluetooth/audio/aidl/default/A2dpSoftwareAudioProvider.h
@@ -32,7 +32,9 @@
 
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
-      const AudioConfiguration& audio_config, DataMQDesc* _aidl_return);
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes,
+      DataMQDesc* _aidl_return);
 
  private:
   // audio data queue for software encoding
diff --git a/bluetooth/audio/aidl/default/Android.bp b/bluetooth/audio/aidl/default/Android.bp
index fc882d4..13a5440 100644
--- a/bluetooth/audio/aidl/default/Android.bp
+++ b/bluetooth/audio/aidl/default/Android.bp
@@ -19,6 +19,7 @@
         "HearingAidAudioProvider.cpp",
         "LeAudioOffloadAudioProvider.cpp",
         "LeAudioSoftwareAudioProvider.cpp",
+        "service.cpp",
     ],
     export_include_dirs: ["."],
     header_libs: ["libhardware_headers"],
diff --git a/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp b/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp
index c2ffa2e..0dd8148 100644
--- a/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp
@@ -34,11 +34,15 @@
 
 ndk::ScopedAStatus BluetoothAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
-    const AudioConfiguration& audio_config, DataMQDesc* _aidl_return) {
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latencyModes,
+    DataMQDesc* _aidl_return) {
   if (host_if == nullptr) {
     *_aidl_return = DataMQDesc();
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
+
+  latency_modes_ = latencyModes;
   audio_config_ = std::make_unique<AudioConfiguration>(audio_config);
   stack_iface_ = host_if;
 
@@ -121,6 +125,21 @@
   return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus BluetoothAudioProvider::setLowLatencyModeAllowed(
+    bool allowed) {
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
+
+  if (stack_iface_ == nullptr) {
+    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+              << " has NO session";
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  LOG(INFO) << __func__ << " - allowed " << allowed;
+  BluetoothAudioSessionReport::ReportLowLatencyModeAllowedChanged(
+    session_type_, allowed);
+  return ndk::ScopedAStatus::ok();
+}
+
 void BluetoothAudioProvider::binderDiedCallbackAidl(void* ptr) {
   LOG(ERROR) << __func__ << " - BluetoothAudio Service died";
   auto provider = static_cast<BluetoothAudioProvider*>(ptr);
diff --git a/bluetooth/audio/aidl/default/BluetoothAudioProvider.h b/bluetooth/audio/aidl/default/BluetoothAudioProvider.h
index f7acbdf..75794e8 100644
--- a/bluetooth/audio/aidl/default/BluetoothAudioProvider.h
+++ b/bluetooth/audio/aidl/default/BluetoothAudioProvider.h
@@ -16,6 +16,7 @@
 #pragma once
 
 #include <aidl/android/hardware/bluetooth/audio/BnBluetoothAudioProvider.h>
+#include <aidl/android/hardware/bluetooth/audio/LatencyMode.h>
 #include <aidl/android/hardware/bluetooth/audio/SessionType.h>
 #include <fmq/AidlMessageQueue.h>
 
@@ -37,15 +38,17 @@
 class BluetoothAudioProvider : public BnBluetoothAudioProvider {
  public:
   BluetoothAudioProvider();
-
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
-      const AudioConfiguration& audio_config, DataMQDesc* _aidl_return);
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes,
+      DataMQDesc* _aidl_return);
   ndk::ScopedAStatus endSession();
   ndk::ScopedAStatus streamStarted(BluetoothAudioStatus status);
   ndk::ScopedAStatus streamSuspended(BluetoothAudioStatus status);
   ndk::ScopedAStatus updateAudioConfiguration(
       const AudioConfiguration& audio_config);
+  ndk::ScopedAStatus setLowLatencyModeAllowed(bool allowed);
 
   virtual bool isValid(const SessionType& sessionType) = 0;
 
@@ -58,6 +61,7 @@
   std::shared_ptr<IBluetoothAudioPort> stack_iface_;
   std::unique_ptr<AudioConfiguration> audio_config_ = nullptr;
   SessionType session_type_;
+  std::vector<LatencyMode> latency_modes_;
 };
 
 }  // namespace audio
diff --git a/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp b/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp
index 1e55a0b..1e1680a 100644
--- a/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp
+++ b/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp
@@ -64,6 +64,14 @@
     case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
       provider = ndk::SharedRefBase::make<LeAudioOffloadInputAudioProvider>();
       break;
+    case SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH:
+      provider =
+          ndk::SharedRefBase::make<LeAudioSoftwareBroadcastAudioProvider>();
+      break;
+    case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+      provider =
+          ndk::SharedRefBase::make<LeAudioOffloadBroadcastAudioProvider>();
+      break;
     default:
       provider = nullptr;
       break;
@@ -93,7 +101,10 @@
   } else if (session_type ==
                  SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
              session_type ==
-                 SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+                 SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+             session_type ==
+                 SessionType::
+                     LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
     std::vector<LeAudioCodecCapabilitiesSetting> db_codec_capabilities =
         BluetoothAudioCodecs::GetLeAudioOffloadCodecCapabilities(session_type);
     if (db_codec_capabilities.size()) {
diff --git a/bluetooth/audio/aidl/default/HearingAidAudioProvider.cpp b/bluetooth/audio/aidl/default/HearingAidAudioProvider.cpp
index 66ce93b..c754849 100644
--- a/bluetooth/audio/aidl/default/HearingAidAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/HearingAidAudioProvider.cpp
@@ -56,7 +56,10 @@
 
 ndk::ScopedAStatus HearingAidAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
-    const AudioConfiguration& audio_config, DataMQDesc* _aidl_return) {
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes,
+    DataMQDesc* _aidl_return) {
+  latency_modes_ = latency_modes;
   if (audio_config.getTag() != AudioConfiguration::pcmConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
@@ -71,8 +74,8 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
 
-  return BluetoothAudioProvider::startSession(host_if, audio_config,
-                                              _aidl_return);
+  return BluetoothAudioProvider::startSession(
+      host_if, audio_config, latency_modes, _aidl_return);
 }
 
 ndk::ScopedAStatus HearingAidAudioProvider::onSessionReady(
diff --git a/bluetooth/audio/aidl/default/HearingAidAudioProvider.h b/bluetooth/audio/aidl/default/HearingAidAudioProvider.h
index a7e19e9..a158c86 100644
--- a/bluetooth/audio/aidl/default/HearingAidAudioProvider.h
+++ b/bluetooth/audio/aidl/default/HearingAidAudioProvider.h
@@ -32,7 +32,9 @@
 
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
-      const AudioConfiguration& audio_config, DataMQDesc* _aidl_return);
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes,
+      DataMQDesc* _aidl_return);
 
  private:
   // audio data queue for software encoding
diff --git a/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.cpp b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.cpp
index 72ac9bd..1a3c658 100644
--- a/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.cpp
@@ -38,6 +38,12 @@
   session_type_ = SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH;
 }
 
+LeAudioOffloadBroadcastAudioProvider::LeAudioOffloadBroadcastAudioProvider()
+    : LeAudioOffloadAudioProvider() {
+  session_type_ =
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
+}
+
 LeAudioOffloadAudioProvider::LeAudioOffloadAudioProvider()
     : BluetoothAudioProvider() {}
 
@@ -47,7 +53,10 @@
 
 ndk::ScopedAStatus LeAudioOffloadAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
-    const AudioConfiguration& audio_config, DataMQDesc* _aidl_return) {
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes,
+    DataMQDesc* _aidl_return) {
+  latency_modes_ = latency_modes;
   if (audio_config.getTag() != AudioConfiguration::leAudioConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
@@ -64,8 +73,8 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
 
-  return BluetoothAudioProvider::startSession(host_if, audio_config,
-                                              _aidl_return);
+  return BluetoothAudioProvider::startSession(
+      host_if, audio_config, latency_modes, _aidl_return);
 }
 
 ndk::ScopedAStatus LeAudioOffloadAudioProvider::onSessionReady(
diff --git a/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h
index a27a2e7..614c794 100644
--- a/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h
+++ b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h
@@ -32,7 +32,9 @@
 
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
-      const AudioConfiguration& audio_config, DataMQDesc* _aidl_return);
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes,
+      DataMQDesc* _aidl_return);
 
  private:
   ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
@@ -48,6 +50,12 @@
   LeAudioOffloadInputAudioProvider();
 };
 
+class LeAudioOffloadBroadcastAudioProvider
+    : public LeAudioOffloadAudioProvider {
+ public:
+  LeAudioOffloadBroadcastAudioProvider();
+};
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
diff --git a/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.cpp b/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.cpp
index 67b7d60..1f64b43 100644
--- a/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.cpp
@@ -55,6 +55,11 @@
   session_type_ = SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH;
 }
 
+LeAudioSoftwareBroadcastAudioProvider::LeAudioSoftwareBroadcastAudioProvider()
+    : LeAudioSoftwareAudioProvider() {
+  session_type_ = SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH;
+}
+
 LeAudioSoftwareAudioProvider::LeAudioSoftwareAudioProvider()
     : BluetoothAudioProvider(), data_mq_(nullptr) {}
 
@@ -64,7 +69,10 @@
 
 ndk::ScopedAStatus LeAudioSoftwareAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
-    const AudioConfiguration& audio_config, DataMQDesc* _aidl_return) {
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes,
+    DataMQDesc* _aidl_return) {
+  latency_modes_ = latency_modes;
   if (audio_config.getTag() != AudioConfiguration::pcmConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
@@ -78,7 +86,9 @@
   }
 
   uint32_t buffer_modifier = 0;
-  if (session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH)
+  if (session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
+      session_type_ ==
+          SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH)
     buffer_modifier = kBufferOutCount;
   else if (session_type_ == SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH)
     buffer_modifier = kBufferInCount;
@@ -112,8 +122,8 @@
   }
   data_mq_ = std::move(temp_data_mq);
 
-  return BluetoothAudioProvider::startSession(host_if, audio_config,
-                                              _aidl_return);
+  return BluetoothAudioProvider::startSession(
+      host_if, audio_config, latency_modes, _aidl_return);
 }
 
 ndk::ScopedAStatus LeAudioSoftwareAudioProvider::onSessionReady(
diff --git a/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h b/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h
index fa58182..21243ff 100644
--- a/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h
+++ b/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h
@@ -32,7 +32,9 @@
 
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
-      const AudioConfiguration& audio_config, DataMQDesc* _aidl_return);
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes,
+      DataMQDesc* _aidl_return);
 
  private:
   // audio data queue for software encoding
@@ -51,6 +53,12 @@
   LeAudioSoftwareInputAudioProvider();
 };
 
+class LeAudioSoftwareBroadcastAudioProvider
+    : public LeAudioSoftwareAudioProvider {
+ public:
+  LeAudioSoftwareBroadcastAudioProvider();
+};
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
diff --git a/bluetooth/audio/aidl/default/OWNERS b/bluetooth/audio/aidl/default/OWNERS
deleted file mode 100644
index 17ea464..0000000
--- a/bluetooth/audio/aidl/default/OWNERS
+++ /dev/null
@@ -1,4 +0,0 @@
-include platform/packages/modules/Bluetooth:/OWNERS
-
-cheneyni@google.com
-aliceypkuo@google.com
\ No newline at end of file
diff --git a/bluetooth/audio/aidl/default/service.cpp b/bluetooth/audio/aidl/default/service.cpp
new file mode 100644
index 0000000..f8f9cde
--- /dev/null
+++ b/bluetooth/audio/aidl/default/service.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "BtAudioAIDLService"
+
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <utils/Log.h>
+
+#include "BluetoothAudioProviderFactory.h"
+
+using ::aidl::android::hardware::bluetooth::audio::
+    BluetoothAudioProviderFactory;
+
+extern "C" __attribute__((visibility("default"))) binder_status_t
+createIBluetoothAudioProviderFactory() {
+  auto factory = ::ndk::SharedRefBase::make<BluetoothAudioProviderFactory>();
+  const std::string instance_name =
+      std::string() + BluetoothAudioProviderFactory::descriptor + "/default";
+  binder_status_t aidl_status = AServiceManager_addService(
+      factory->asBinder().get(), instance_name.c_str());
+  ALOGW_IF(aidl_status != STATUS_OK, "Could not register %s, status=%d",
+           instance_name.c_str(), aidl_status);
+  return aidl_status;
+}
\ No newline at end of file
diff --git a/bluetooth/audio/aidl/vts/Android.bp b/bluetooth/audio/aidl/vts/Android.bp
new file mode 100644
index 0000000..feb952e
--- /dev/null
+++ b/bluetooth/audio/aidl/vts/Android.bp
@@ -0,0 +1,32 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+cc_test {
+    name: "VtsHalBluetoothAudioTargetTest",
+    defaults: [
+        "VtsHalTargetTestDefaults",
+        "use_libaidlvintf_gtest_helper_static",
+    ],
+    tidy_timeout_srcs: ["VtsHalBluetoothAudioTargetTest.cpp"],
+    srcs: ["VtsHalBluetoothAudioTargetTest.cpp"],
+    shared_libs: [
+        "android.hardware.audio.common-V1-ndk",
+        "android.hardware.bluetooth.audio-V1-ndk",
+        "android.hardware.common-V2-ndk",
+        "android.hardware.common.fmq-V1-ndk",
+        "libbase",
+        "libbinder_ndk",
+        "libcutils",
+        "libfmq",
+    ],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/bluetooth/audio/aidl/vts/OWNERS b/bluetooth/audio/aidl/vts/OWNERS
deleted file mode 100644
index 17ea464..0000000
--- a/bluetooth/audio/aidl/vts/OWNERS
+++ /dev/null
@@ -1,4 +0,0 @@
-include platform/packages/modules/Bluetooth:/OWNERS
-
-cheneyni@google.com
-aliceypkuo@google.com
\ No newline at end of file
diff --git a/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
new file mode 100644
index 0000000..18352a0
--- /dev/null
+++ b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
@@ -0,0 +1,1673 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 <aidl/Gtest.h>
+#include <aidl/Vintf.h>
+#include <aidl/android/hardware/bluetooth/audio/BnBluetoothAudioPort.h>
+#include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioPort.h>
+#include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioProviderFactory.h>
+#include <android/binder_auto_utils.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <fmq/AidlMessageQueue.h>
+
+#include <cstdint>
+#include <future>
+#include <unordered_set>
+#include <vector>
+
+using aidl::android::hardware::audio::common::SinkMetadata;
+using aidl::android::hardware::audio::common::SourceMetadata;
+using aidl::android::hardware::bluetooth::audio::AacCapabilities;
+using aidl::android::hardware::bluetooth::audio::AacConfiguration;
+using aidl::android::hardware::bluetooth::audio::AptxCapabilities;
+using aidl::android::hardware::bluetooth::audio::AptxConfiguration;
+using aidl::android::hardware::bluetooth::audio::AudioCapabilities;
+using aidl::android::hardware::bluetooth::audio::AudioConfiguration;
+using aidl::android::hardware::bluetooth::audio::BnBluetoothAudioPort;
+using aidl::android::hardware::bluetooth::audio::BroadcastCapability;
+using aidl::android::hardware::bluetooth::audio::ChannelMode;
+using aidl::android::hardware::bluetooth::audio::CodecCapabilities;
+using aidl::android::hardware::bluetooth::audio::CodecConfiguration;
+using aidl::android::hardware::bluetooth::audio::CodecType;
+using aidl::android::hardware::bluetooth::audio::IBluetoothAudioPort;
+using aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider;
+using aidl::android::hardware::bluetooth::audio::IBluetoothAudioProviderFactory;
+using aidl::android::hardware::bluetooth::audio::LatencyMode;
+using aidl::android::hardware::bluetooth::audio::Lc3Capabilities;
+using aidl::android::hardware::bluetooth::audio::Lc3Configuration;
+using aidl::android::hardware::bluetooth::audio::LdacCapabilities;
+using aidl::android::hardware::bluetooth::audio::LdacConfiguration;
+using aidl::android::hardware::bluetooth::audio::LeAudioBroadcastConfiguration;
+using aidl::android::hardware::bluetooth::audio::
+    LeAudioCodecCapabilitiesSetting;
+using aidl::android::hardware::bluetooth::audio::LeAudioCodecConfiguration;
+using aidl::android::hardware::bluetooth::audio::LeAudioConfiguration;
+using aidl::android::hardware::bluetooth::audio::PcmConfiguration;
+using aidl::android::hardware::bluetooth::audio::PresentationPosition;
+using aidl::android::hardware::bluetooth::audio::SbcAllocMethod;
+using aidl::android::hardware::bluetooth::audio::SbcCapabilities;
+using aidl::android::hardware::bluetooth::audio::SbcChannelMode;
+using aidl::android::hardware::bluetooth::audio::SbcConfiguration;
+using aidl::android::hardware::bluetooth::audio::SessionType;
+using aidl::android::hardware::bluetooth::audio::UnicastCapability;
+using aidl::android::hardware::common::fmq::MQDescriptor;
+using aidl::android::hardware::common::fmq::SynchronizedReadWrite;
+using android::AidlMessageQueue;
+using android::ProcessState;
+using android::String16;
+using ndk::ScopedAStatus;
+using ndk::SpAIBinder;
+
+using MqDataType = int8_t;
+using MqDataMode = SynchronizedReadWrite;
+using DataMQ = AidlMessageQueue<MqDataType, MqDataMode>;
+using DataMQDesc = MQDescriptor<MqDataType, MqDataMode>;
+
+// Constants
+
+static constexpr int32_t a2dp_sample_rates[] = {0, 44100, 48000, 88200, 96000};
+static constexpr int8_t a2dp_bits_per_samples[] = {0, 16, 24, 32};
+static constexpr ChannelMode a2dp_channel_modes[] = {
+    ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
+static constexpr CodecType a2dp_codec_types[] = {
+    CodecType::UNKNOWN, CodecType::SBC,          CodecType::AAC,
+    CodecType::APTX,    CodecType::APTX_HD,      CodecType::LDAC,
+    CodecType::LC3,     CodecType::APTX_ADAPTIVE};
+static std::vector<LatencyMode> latency_modes = {LatencyMode::FREE};
+// Helpers
+
+template <typename T>
+struct identity {
+  typedef T type;
+};
+
+template <class T>
+bool contained_in_vector(const std::vector<T>& vector,
+                         const typename identity<T>::type& target) {
+  return std::find(vector.begin(), vector.end(), target) != vector.end();
+}
+
+void copy_codec_specific(CodecConfiguration::CodecSpecific& dst,
+                         const CodecConfiguration::CodecSpecific& src) {
+  switch (src.getTag()) {
+    case CodecConfiguration::CodecSpecific::sbcConfig:
+      dst.set<CodecConfiguration::CodecSpecific::sbcConfig>(
+          src.get<CodecConfiguration::CodecSpecific::sbcConfig>());
+      break;
+    case CodecConfiguration::CodecSpecific::aacConfig:
+      dst.set<CodecConfiguration::CodecSpecific::aacConfig>(
+          src.get<CodecConfiguration::CodecSpecific::aacConfig>());
+      break;
+    case CodecConfiguration::CodecSpecific::ldacConfig:
+      dst.set<CodecConfiguration::CodecSpecific::ldacConfig>(
+          src.get<CodecConfiguration::CodecSpecific::ldacConfig>());
+      break;
+    case CodecConfiguration::CodecSpecific::aptxConfig:
+      dst.set<CodecConfiguration::CodecSpecific::aptxConfig>(
+          src.get<CodecConfiguration::CodecSpecific::aptxConfig>());
+      break;
+    case CodecConfiguration::CodecSpecific::lc3Config:
+      dst.set<CodecConfiguration::CodecSpecific::lc3Config>(
+          src.get<CodecConfiguration::CodecSpecific::lc3Config>());
+      break;
+    case CodecConfiguration::CodecSpecific::aptxAdaptiveConfig:
+      dst.set<CodecConfiguration::CodecSpecific::aptxAdaptiveConfig>(
+          src.get<CodecConfiguration::CodecSpecific::aptxAdaptiveConfig>());
+      break;
+    default:
+      break;
+  }
+}
+
+class BluetoothAudioPort : public BnBluetoothAudioPort {
+ public:
+  BluetoothAudioPort() {}
+
+  ndk::ScopedAStatus startStream(bool) { return ScopedAStatus::ok(); }
+
+  ndk::ScopedAStatus suspendStream() { return ScopedAStatus::ok(); }
+
+  ndk::ScopedAStatus stopStream() { return ScopedAStatus::ok(); }
+
+  ndk::ScopedAStatus getPresentationPosition(PresentationPosition*) {
+    return ScopedAStatus::ok();
+  }
+
+  ndk::ScopedAStatus updateSourceMetadata(const SourceMetadata&) {
+    return ScopedAStatus::ok();
+  }
+
+  ndk::ScopedAStatus updateSinkMetadata(const SinkMetadata&) {
+    return ScopedAStatus::ok();
+  }
+
+  ndk::ScopedAStatus setLatencyMode(const LatencyMode) {
+    return ScopedAStatus::ok();
+  }
+
+  ndk::ScopedAStatus setCodecType(const CodecType) {
+    return ScopedAStatus::ok();
+  }
+
+ protected:
+  virtual ~BluetoothAudioPort() = default;
+};
+
+class BluetoothAudioProviderFactoryAidl
+    : public testing::TestWithParam<std::string> {
+ public:
+  virtual void SetUp() override {
+    provider_factory_ = IBluetoothAudioProviderFactory::fromBinder(
+        SpAIBinder(AServiceManager_getService(GetParam().c_str())));
+    audio_provider_ = nullptr;
+    ASSERT_NE(provider_factory_, nullptr);
+  }
+
+  virtual void TearDown() override { provider_factory_ = nullptr; }
+
+  void GetProviderCapabilitiesHelper(const SessionType& session_type) {
+    temp_provider_capabilities_.clear();
+    auto aidl_retval = provider_factory_->getProviderCapabilities(
+        session_type, &temp_provider_capabilities_);
+    // AIDL calls should not be failed and callback has to be executed
+    ASSERT_TRUE(aidl_retval.isOk());
+    switch (session_type) {
+      case SessionType::UNKNOWN: {
+        ASSERT_TRUE(temp_provider_capabilities_.empty());
+      } break;
+      case SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
+      case SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
+      case SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH:
+      case SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH:
+      case SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH: {
+        // All software paths are mandatory and must have exact 1
+        // "PcmParameters"
+        ASSERT_EQ(temp_provider_capabilities_.size(), 1);
+        ASSERT_EQ(temp_provider_capabilities_[0].getTag(),
+                  AudioCapabilities::pcmCapabilities);
+      } break;
+      case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH: {
+        std::unordered_set<CodecType> codec_types;
+        // empty capability means offload is unsupported
+        for (auto& audio_capability : temp_provider_capabilities_) {
+          ASSERT_EQ(audio_capability.getTag(),
+                    AudioCapabilities::a2dpCapabilities);
+          const auto& codec_capabilities =
+              audio_capability.get<AudioCapabilities::a2dpCapabilities>();
+          // Every codec can present once at most
+          ASSERT_EQ(codec_types.count(codec_capabilities.codecType), 0);
+          switch (codec_capabilities.codecType) {
+            case CodecType::SBC:
+              ASSERT_EQ(codec_capabilities.capabilities.getTag(),
+                        CodecCapabilities::Capabilities::sbcCapabilities);
+              break;
+            case CodecType::AAC:
+              ASSERT_EQ(codec_capabilities.capabilities.getTag(),
+                        CodecCapabilities::Capabilities::aacCapabilities);
+              break;
+            case CodecType::APTX:
+            case CodecType::APTX_HD:
+              ASSERT_EQ(codec_capabilities.capabilities.getTag(),
+                        CodecCapabilities::Capabilities::aptxCapabilities);
+              break;
+            case CodecType::LDAC:
+              ASSERT_EQ(codec_capabilities.capabilities.getTag(),
+                        CodecCapabilities::Capabilities::ldacCapabilities);
+              break;
+            case CodecType::LC3:
+              ASSERT_EQ(codec_capabilities.capabilities.getTag(),
+                        CodecCapabilities::Capabilities::lc3Capabilities);
+              break;
+            case CodecType::APTX_ADAPTIVE:
+            case CodecType::VENDOR:
+            case CodecType::UNKNOWN:
+              break;
+          }
+          codec_types.insert(codec_capabilities.codecType);
+        }
+      } break;
+      case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+      case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
+      case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH: {
+        ASSERT_FALSE(temp_provider_capabilities_.empty());
+        for (auto audio_capability : temp_provider_capabilities_) {
+          ASSERT_EQ(audio_capability.getTag(),
+                    AudioCapabilities::leAudioCapabilities);
+        }
+      } break;
+    }
+  }
+
+  /***
+   * This helps to open the specified provider and check the openProvider()
+   * has corruct return values. BUT, to keep it simple, it does not consider
+   * the capability, and please do so at the SetUp of each session's test.
+   ***/
+  void OpenProviderHelper(const SessionType& session_type) {
+    auto aidl_retval =
+        provider_factory_->openProvider(session_type, &audio_provider_);
+    if (aidl_retval.isOk()) {
+      ASSERT_NE(session_type, SessionType::UNKNOWN);
+      ASSERT_NE(audio_provider_, nullptr);
+      audio_port_ = ndk::SharedRefBase::make<BluetoothAudioPort>();
+    } else {
+      // Hardware offloading is optional
+      ASSERT_TRUE(
+          session_type == SessionType::UNKNOWN ||
+          session_type ==
+              SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+          session_type ==
+              SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+          session_type ==
+              SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+          session_type ==
+              SessionType::
+                  LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+      ASSERT_EQ(audio_provider_, nullptr);
+    }
+  }
+
+  bool IsPcmConfigSupported(const PcmConfiguration& pcm_config) {
+    if (temp_provider_capabilities_.size() != 1 ||
+        temp_provider_capabilities_[0].getTag() !=
+            AudioCapabilities::pcmCapabilities) {
+      return false;
+    }
+    auto pcm_capability = temp_provider_capabilities_[0]
+                              .get<AudioCapabilities::pcmCapabilities>();
+    return (contained_in_vector(pcm_capability.channelMode,
+                                pcm_config.channelMode) &&
+            contained_in_vector(pcm_capability.sampleRateHz,
+                                pcm_config.sampleRateHz) &&
+            contained_in_vector(pcm_capability.bitsPerSample,
+                                pcm_config.bitsPerSample));
+  }
+
+  std::shared_ptr<IBluetoothAudioProviderFactory> provider_factory_;
+  std::shared_ptr<IBluetoothAudioProvider> audio_provider_;
+  std::shared_ptr<IBluetoothAudioPort> audio_port_;
+  std::vector<AudioCapabilities> temp_provider_capabilities_;
+
+  static constexpr SessionType kSessionTypes[] = {
+      SessionType::UNKNOWN,
+      SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+      SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH,
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+      SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+  };
+};
+
+/**
+ * Test whether we can get the FactoryService from HIDL
+ */
+TEST_P(BluetoothAudioProviderFactoryAidl, GetProviderFactoryService) {}
+
+/**
+ * Test whether we can open a provider for each provider returned by
+ * getProviderCapabilities() with non-empty capabalities
+ */
+TEST_P(BluetoothAudioProviderFactoryAidl,
+       OpenProviderAndCheckCapabilitiesBySession) {
+  for (auto session_type : kSessionTypes) {
+    GetProviderCapabilitiesHelper(session_type);
+    OpenProviderHelper(session_type);
+    // We must be able to open a provider if its getProviderCapabilities()
+    // returns non-empty list.
+    EXPECT_TRUE(temp_provider_capabilities_.empty() ||
+                audio_provider_ != nullptr);
+  }
+}
+
+/**
+ * openProvider A2DP_SOFTWARE_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderA2dpSoftwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH);
+    OpenProviderHelper(SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+};
+
+/**
+ * Test whether we can open a provider of type
+ */
+TEST_P(BluetoothAudioProviderA2dpSoftwareAidl, OpenA2dpSoftwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH can be started and stopped with
+ * different PCM config
+ */
+TEST_P(BluetoothAudioProviderA2dpSoftwareAidl,
+       StartAndEndA2dpSoftwareSessionWithPossiblePcmConfig) {
+  for (auto sample_rate : a2dp_sample_rates) {
+    for (auto bits_per_sample : a2dp_bits_per_samples) {
+      for (auto channel_mode : a2dp_channel_modes) {
+        PcmConfiguration pcm_config{
+            .sampleRateHz = sample_rate,
+            .bitsPerSample = bits_per_sample,
+            .channelMode = channel_mode,
+        };
+        bool is_codec_config_valid = IsPcmConfigSupported(pcm_config);
+        DataMQDesc mq_desc;
+        auto aidl_retval = audio_provider_->startSession(
+            audio_port_, AudioConfiguration(pcm_config), latency_modes,
+            &mq_desc);
+        DataMQ data_mq(mq_desc);
+
+        EXPECT_EQ(aidl_retval.isOk(), is_codec_config_valid);
+        if (is_codec_config_valid) {
+          EXPECT_TRUE(data_mq.isValid());
+        }
+        EXPECT_TRUE(audio_provider_->endSession().isOk());
+      }
+    }
+  }
+}
+
+/**
+ * openProvider A2DP_HARDWARE_OFFLOAD_DATAPATH
+ */
+class BluetoothAudioProviderA2dpHardwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+    OpenProviderHelper(SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+    ASSERT_TRUE(temp_provider_capabilities_.empty() ||
+                audio_provider_ != nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  bool IsOffloadSupported() { return (temp_provider_capabilities_.size() > 0); }
+
+  void GetA2dpOffloadCapabilityHelper(const CodecType& codec_type) {
+    temp_codec_capabilities_ = nullptr;
+    for (auto& codec_capability : temp_provider_capabilities_) {
+      auto& a2dp_capabilities =
+          codec_capability.get<AudioCapabilities::a2dpCapabilities>();
+      if (a2dp_capabilities.codecType != codec_type) {
+        continue;
+      }
+      temp_codec_capabilities_ = &a2dp_capabilities;
+    }
+  }
+
+  std::vector<CodecConfiguration::CodecSpecific>
+  GetSbcCodecSpecificSupportedList(bool supported) {
+    std::vector<CodecConfiguration::CodecSpecific> sbc_codec_specifics;
+    if (!supported) {
+      SbcConfiguration sbc_config{.sampleRateHz = 0, .bitsPerSample = 0};
+      sbc_codec_specifics.push_back(
+          CodecConfiguration::CodecSpecific(sbc_config));
+      return sbc_codec_specifics;
+    }
+    GetA2dpOffloadCapabilityHelper(CodecType::SBC);
+    if (temp_codec_capabilities_ == nullptr ||
+        temp_codec_capabilities_->codecType != CodecType::SBC) {
+      return sbc_codec_specifics;
+    }
+    // parse the capability
+    auto& sbc_capability =
+        temp_codec_capabilities_->capabilities
+            .get<CodecCapabilities::Capabilities::sbcCapabilities>();
+    if (sbc_capability.minBitpool > sbc_capability.maxBitpool) {
+      return sbc_codec_specifics;
+    }
+
+    // combine those parameters into one list of
+    // CodecConfiguration::CodecSpecific
+    for (int32_t sample_rate : sbc_capability.sampleRateHz) {
+      for (int8_t block_length : sbc_capability.blockLength) {
+        for (int8_t num_subbands : sbc_capability.numSubbands) {
+          for (int8_t bits_per_sample : sbc_capability.bitsPerSample) {
+            for (auto channel_mode : sbc_capability.channelMode) {
+              for (auto alloc_method : sbc_capability.allocMethod) {
+                SbcConfiguration sbc_data = {
+                    .sampleRateHz = sample_rate,
+                    .channelMode = channel_mode,
+                    .blockLength = block_length,
+                    .numSubbands = num_subbands,
+                    .allocMethod = alloc_method,
+                    .bitsPerSample = bits_per_sample,
+                    .minBitpool = sbc_capability.minBitpool,
+                    .maxBitpool = sbc_capability.maxBitpool};
+                sbc_codec_specifics.push_back(
+                    CodecConfiguration::CodecSpecific(sbc_data));
+              }
+            }
+          }
+        }
+      }
+    }
+    return sbc_codec_specifics;
+  }
+
+  std::vector<CodecConfiguration::CodecSpecific>
+  GetAacCodecSpecificSupportedList(bool supported) {
+    std::vector<CodecConfiguration::CodecSpecific> aac_codec_specifics;
+    if (!supported) {
+      AacConfiguration aac_config{.sampleRateHz = 0, .bitsPerSample = 0};
+      aac_codec_specifics.push_back(
+          CodecConfiguration::CodecSpecific(aac_config));
+      return aac_codec_specifics;
+    }
+    GetA2dpOffloadCapabilityHelper(CodecType::AAC);
+    if (temp_codec_capabilities_ == nullptr ||
+        temp_codec_capabilities_->codecType != CodecType::AAC) {
+      return aac_codec_specifics;
+    }
+    // parse the capability
+    auto& aac_capability =
+        temp_codec_capabilities_->capabilities
+            .get<CodecCapabilities::Capabilities::aacCapabilities>();
+
+    std::vector<bool> variable_bit_rate_enableds = {false};
+    if (aac_capability.variableBitRateSupported) {
+      variable_bit_rate_enableds.push_back(true);
+    }
+
+    // combine those parameters into one list of
+    // CodecConfiguration::CodecSpecific
+    for (auto object_type : aac_capability.objectType) {
+      for (int32_t sample_rate : aac_capability.sampleRateHz) {
+        for (auto channel_mode : aac_capability.channelMode) {
+          for (int8_t bits_per_sample : aac_capability.bitsPerSample) {
+            for (auto variable_bit_rate_enabled : variable_bit_rate_enableds) {
+              AacConfiguration aac_data{
+                  .objectType = object_type,
+                  .sampleRateHz = sample_rate,
+                  .channelMode = channel_mode,
+                  .variableBitRateEnabled = variable_bit_rate_enabled,
+                  .bitsPerSample = bits_per_sample};
+              aac_codec_specifics.push_back(
+                  CodecConfiguration::CodecSpecific(aac_data));
+            }
+          }
+        }
+      }
+    }
+    return aac_codec_specifics;
+  }
+
+  std::vector<CodecConfiguration::CodecSpecific>
+  GetLdacCodecSpecificSupportedList(bool supported) {
+    std::vector<CodecConfiguration::CodecSpecific> ldac_codec_specifics;
+    if (!supported) {
+      LdacConfiguration ldac_config{.sampleRateHz = 0, .bitsPerSample = 0};
+      ldac_codec_specifics.push_back(
+          CodecConfiguration::CodecSpecific(ldac_config));
+      return ldac_codec_specifics;
+    }
+    GetA2dpOffloadCapabilityHelper(CodecType::LDAC);
+    if (temp_codec_capabilities_ == nullptr ||
+        temp_codec_capabilities_->codecType != CodecType::LDAC) {
+      return ldac_codec_specifics;
+    }
+    // parse the capability
+    auto& ldac_capability =
+        temp_codec_capabilities_->capabilities
+            .get<CodecCapabilities::Capabilities::ldacCapabilities>();
+
+    // combine those parameters into one list of
+    // CodecConfiguration::CodecSpecific
+    for (int32_t sample_rate : ldac_capability.sampleRateHz) {
+      for (int8_t bits_per_sample : ldac_capability.bitsPerSample) {
+        for (auto channel_mode : ldac_capability.channelMode) {
+          for (auto quality_index : ldac_capability.qualityIndex) {
+            LdacConfiguration ldac_data{.sampleRateHz = sample_rate,
+                                        .channelMode = channel_mode,
+                                        .qualityIndex = quality_index,
+                                        .bitsPerSample = bits_per_sample};
+            ldac_codec_specifics.push_back(
+                CodecConfiguration::CodecSpecific(ldac_data));
+          }
+        }
+      }
+    }
+    return ldac_codec_specifics;
+  }
+
+  std::vector<CodecConfiguration::CodecSpecific>
+  GetAptxCodecSpecificSupportedList(bool is_hd, bool supported) {
+    std::vector<CodecConfiguration::CodecSpecific> aptx_codec_specifics;
+    if (!supported) {
+      AptxConfiguration aptx_config{.sampleRateHz = 0, .bitsPerSample = 0};
+      aptx_codec_specifics.push_back(
+          CodecConfiguration::CodecSpecific(aptx_config));
+      return aptx_codec_specifics;
+    }
+    GetA2dpOffloadCapabilityHelper(
+        (is_hd ? CodecType::APTX_HD : CodecType::APTX));
+    if (temp_codec_capabilities_ == nullptr) {
+      return aptx_codec_specifics;
+    }
+    if ((is_hd && temp_codec_capabilities_->codecType != CodecType::APTX_HD) ||
+        (!is_hd && temp_codec_capabilities_->codecType != CodecType::APTX)) {
+      return aptx_codec_specifics;
+    }
+
+    // parse the capability
+    auto& aptx_capability =
+        temp_codec_capabilities_->capabilities
+            .get<CodecCapabilities::Capabilities::aptxCapabilities>();
+
+    // combine those parameters into one list of
+    // CodecConfiguration::CodecSpecific
+    for (int8_t bits_per_sample : aptx_capability.bitsPerSample) {
+      for (int32_t sample_rate : aptx_capability.sampleRateHz) {
+        for (auto channel_mode : aptx_capability.channelMode) {
+          AptxConfiguration aptx_data{.sampleRateHz = sample_rate,
+                                      .channelMode = channel_mode,
+                                      .bitsPerSample = bits_per_sample};
+          aptx_codec_specifics.push_back(
+              CodecConfiguration::CodecSpecific(aptx_data));
+        }
+      }
+    }
+    return aptx_codec_specifics;
+  }
+
+  std::vector<CodecConfiguration::CodecSpecific>
+  GetLc3CodecSpecificSupportedList(bool supported) {
+    std::vector<CodecConfiguration::CodecSpecific> lc3_codec_specifics;
+    if (!supported) {
+      Lc3Configuration lc3_config{.samplingFrequencyHz = 0,
+                                  .frameDurationUs = 0};
+      lc3_codec_specifics.push_back(
+          CodecConfiguration::CodecSpecific(lc3_config));
+      return lc3_codec_specifics;
+    }
+    GetA2dpOffloadCapabilityHelper(CodecType::LC3);
+    if (temp_codec_capabilities_ == nullptr ||
+        temp_codec_capabilities_->codecType != CodecType::LC3) {
+      return lc3_codec_specifics;
+    }
+    // parse the capability
+    auto& lc3_capability =
+        temp_codec_capabilities_->capabilities
+            .get<CodecCapabilities::Capabilities::lc3Capabilities>();
+
+    // combine those parameters into one list of
+    // CodecConfiguration::CodecSpecific
+    for (int32_t samplingFrequencyHz : lc3_capability.samplingFrequencyHz) {
+      for (int32_t frameDurationUs : lc3_capability.frameDurationUs) {
+        for (auto channel_mode : lc3_capability.channelMode) {
+          Lc3Configuration lc3_data{.samplingFrequencyHz = samplingFrequencyHz,
+                                    .channelMode = channel_mode,
+                                    .frameDurationUs = frameDurationUs};
+          lc3_codec_specifics.push_back(
+              CodecConfiguration::CodecSpecific(lc3_data));
+        }
+      }
+    }
+    return lc3_codec_specifics;
+  }
+
+  // temp storage saves the specified codec capability by
+  // GetOffloadCodecCapabilityHelper()
+  CodecCapabilities* temp_codec_capabilities_;
+};
+
+/**
+ * Test whether we can open a provider of type
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl, OpenA2dpHardwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_HARDWARE_ENCODING_DATAPATH can be started and stopped with
+ * SBC hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl,
+       StartAndEndA2dpSbcHardwareSession) {
+  if (!IsOffloadSupported()) {
+    return;
+  }
+
+  CodecConfiguration codec_config = {
+      .codecType = CodecType::SBC,
+      .encodedAudioBitrate = 328000,
+      .peerMtu = 1005,
+      .isScmstEnabled = false,
+  };
+  auto sbc_codec_specifics = GetSbcCodecSpecificSupportedList(true);
+
+  for (auto& codec_specific : sbc_codec_specifics) {
+    copy_codec_specific(codec_config.config, codec_specific);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(codec_config), latency_modes, &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_HARDWARE_ENCODING_DATAPATH can be started and stopped with
+ * AAC hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl,
+       StartAndEndA2dpAacHardwareSession) {
+  if (!IsOffloadSupported()) {
+    return;
+  }
+
+  CodecConfiguration codec_config = {
+      .codecType = CodecType::AAC,
+      .encodedAudioBitrate = 320000,
+      .peerMtu = 1005,
+      .isScmstEnabled = false,
+  };
+  auto aac_codec_specifics = GetAacCodecSpecificSupportedList(true);
+
+  for (auto& codec_specific : aac_codec_specifics) {
+    copy_codec_specific(codec_config.config, codec_specific);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(codec_config), latency_modes, &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_HARDWARE_ENCODING_DATAPATH can be started and stopped with
+ * LDAC hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl,
+       StartAndEndA2dpLdacHardwareSession) {
+  if (!IsOffloadSupported()) {
+    return;
+  }
+
+  CodecConfiguration codec_config = {
+      .codecType = CodecType::LDAC,
+      .encodedAudioBitrate = 990000,
+      .peerMtu = 1005,
+      .isScmstEnabled = false,
+  };
+  auto ldac_codec_specifics = GetLdacCodecSpecificSupportedList(true);
+
+  for (auto& codec_specific : ldac_codec_specifics) {
+    copy_codec_specific(codec_config.config, codec_specific);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(codec_config), latency_modes, &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_HARDWARE_ENCODING_DATAPATH can be started and stopped with
+ * LDAC hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl,
+       StartAndEndA2dpLc3HardwareSession) {
+  if (!IsOffloadSupported()) {
+    return;
+  }
+
+  CodecConfiguration codec_config = {
+      .codecType = CodecType::LC3,
+      .encodedAudioBitrate = 990000,
+      .peerMtu = 1005,
+      .isScmstEnabled = false,
+  };
+  auto lc3_codec_specifics = GetLc3CodecSpecificSupportedList(true);
+
+  for (auto& codec_specific : lc3_codec_specifics) {
+    copy_codec_specific(codec_config.config, codec_specific);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(codec_config), latency_modes, &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_HARDWARE_ENCODING_DATAPATH can be started and stopped with
+ * AptX hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl,
+       StartAndEndA2dpAptxHardwareSession) {
+  if (!IsOffloadSupported()) {
+    return;
+  }
+
+  for (auto codec_type : {CodecType::APTX, CodecType::APTX_HD}) {
+    CodecConfiguration codec_config = {
+        .codecType = codec_type,
+        .encodedAudioBitrate =
+            (codec_type == CodecType::APTX ? 352000 : 576000),
+        .peerMtu = 1005,
+        .isScmstEnabled = false,
+    };
+
+    auto aptx_codec_specifics = GetAptxCodecSpecificSupportedList(
+        (codec_type == CodecType::APTX_HD ? true : false), true);
+
+    for (auto& codec_specific : aptx_codec_specifics) {
+      copy_codec_specific(codec_config.config, codec_specific);
+      DataMQDesc mq_desc;
+      auto aidl_retval = audio_provider_->startSession(
+          audio_port_, AudioConfiguration(codec_config), latency_modes,
+          &mq_desc);
+
+      ASSERT_TRUE(aidl_retval.isOk());
+      EXPECT_TRUE(audio_provider_->endSession().isOk());
+    }
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::A2DP_HARDWARE_ENCODING_DATAPATH can be started and stopped with
+ * an invalid codec config
+ */
+TEST_P(BluetoothAudioProviderA2dpHardwareAidl,
+       StartAndEndA2dpHardwareSessionInvalidCodecConfig) {
+  if (!IsOffloadSupported()) {
+    return;
+  }
+  ASSERT_NE(audio_provider_, nullptr);
+
+  std::vector<CodecConfiguration::CodecSpecific> codec_specifics;
+  for (auto codec_type : a2dp_codec_types) {
+    switch (codec_type) {
+      case CodecType::SBC:
+        codec_specifics = GetSbcCodecSpecificSupportedList(false);
+        break;
+      case CodecType::AAC:
+        codec_specifics = GetAacCodecSpecificSupportedList(false);
+        break;
+      case CodecType::LDAC:
+        codec_specifics = GetLdacCodecSpecificSupportedList(false);
+        break;
+      case CodecType::APTX:
+        codec_specifics = GetAptxCodecSpecificSupportedList(false, false);
+        break;
+      case CodecType::APTX_HD:
+        codec_specifics = GetAptxCodecSpecificSupportedList(true, false);
+        break;
+      case CodecType::LC3:
+        codec_specifics = GetLc3CodecSpecificSupportedList(false);
+        continue;
+      case CodecType::APTX_ADAPTIVE:
+      case CodecType::VENDOR:
+      case CodecType::UNKNOWN:
+        codec_specifics.clear();
+        break;
+    }
+    if (codec_specifics.empty()) {
+      continue;
+    }
+
+    CodecConfiguration codec_config = {
+        .codecType = codec_type,
+        .encodedAudioBitrate = 328000,
+        .peerMtu = 1005,
+        .isScmstEnabled = false,
+    };
+    for (auto codec_specific : codec_specifics) {
+      copy_codec_specific(codec_config.config, codec_specific);
+      DataMQDesc mq_desc;
+      auto aidl_retval = audio_provider_->startSession(
+          audio_port_, AudioConfiguration(codec_config), latency_modes,
+          &mq_desc);
+
+      // AIDL call should fail on invalid codec
+      ASSERT_FALSE(aidl_retval.isOk());
+      EXPECT_TRUE(audio_provider_->endSession().isOk());
+    }
+  }
+}
+
+/**
+ * openProvider HEARING_AID_SOFTWARE_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderHearingAidSoftwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH);
+    OpenProviderHelper(SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  static constexpr int32_t hearing_aid_sample_rates_[] = {0, 16000, 24000};
+  static constexpr int8_t hearing_aid_bits_per_samples_[] = {0, 16, 24};
+  static constexpr ChannelMode hearing_aid_channel_modes_[] = {
+      ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
+};
+
+/**
+ * Test whether we can open a provider of type
+ */
+TEST_P(BluetoothAudioProviderHearingAidSoftwareAidl,
+       OpenHearingAidSoftwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH can be started and
+ * stopped with different PCM config
+ */
+TEST_P(BluetoothAudioProviderHearingAidSoftwareAidl,
+       StartAndEndHearingAidSessionWithPossiblePcmConfig) {
+  for (int32_t sample_rate : hearing_aid_sample_rates_) {
+    for (int8_t bits_per_sample : hearing_aid_bits_per_samples_) {
+      for (auto channel_mode : hearing_aid_channel_modes_) {
+        PcmConfiguration pcm_config{
+            .sampleRateHz = sample_rate,
+            .bitsPerSample = bits_per_sample,
+            .channelMode = channel_mode,
+        };
+        bool is_codec_config_valid = IsPcmConfigSupported(pcm_config);
+        DataMQDesc mq_desc;
+        auto aidl_retval = audio_provider_->startSession(
+            audio_port_, AudioConfiguration(pcm_config), latency_modes,
+            &mq_desc);
+        DataMQ data_mq(mq_desc);
+
+        EXPECT_EQ(aidl_retval.isOk(), is_codec_config_valid);
+        if (is_codec_config_valid) {
+          EXPECT_TRUE(data_mq.isValid());
+        }
+        EXPECT_TRUE(audio_provider_->endSession().isOk());
+      }
+    }
+  }
+}
+
+/**
+ * openProvider LE_AUDIO_SOFTWARE_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderLeAudioOutputSoftwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH);
+    OpenProviderHelper(SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  static constexpr int32_t le_audio_output_sample_rates_[] = {
+      0, 8000, 16000, 24000, 32000, 44100, 48000,
+  };
+  static constexpr int8_t le_audio_output_bits_per_samples_[] = {0, 16, 24};
+  static constexpr ChannelMode le_audio_output_channel_modes_[] = {
+      ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
+  static constexpr int32_t le_audio_output_data_interval_us_[] = {
+      0 /* Invalid */, 10000 /* Valid 10ms */};
+};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH can be started and
+ * stopped
+ */
+TEST_P(BluetoothAudioProviderLeAudioOutputSoftwareAidl,
+       OpenLeAudioOutputSoftwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH can be started and
+ * stopped with different PCM config
+ */
+TEST_P(BluetoothAudioProviderLeAudioOutputSoftwareAidl,
+       StartAndEndLeAudioOutputSessionWithPossiblePcmConfig) {
+  for (auto sample_rate : le_audio_output_sample_rates_) {
+    for (auto bits_per_sample : le_audio_output_bits_per_samples_) {
+      for (auto channel_mode : le_audio_output_channel_modes_) {
+        for (auto data_interval_us : le_audio_output_data_interval_us_) {
+          PcmConfiguration pcm_config{
+              .sampleRateHz = sample_rate,
+              .bitsPerSample = bits_per_sample,
+              .channelMode = channel_mode,
+              .dataIntervalUs = data_interval_us,
+          };
+          bool is_codec_config_valid =
+              IsPcmConfigSupported(pcm_config) && pcm_config.dataIntervalUs > 0;
+          DataMQDesc mq_desc;
+          auto aidl_retval = audio_provider_->startSession(
+              audio_port_, AudioConfiguration(pcm_config), latency_modes,
+              &mq_desc);
+          DataMQ data_mq(mq_desc);
+
+          EXPECT_EQ(aidl_retval.isOk(), is_codec_config_valid);
+          if (is_codec_config_valid) {
+            EXPECT_TRUE(data_mq.isValid());
+          }
+          EXPECT_TRUE(audio_provider_->endSession().isOk());
+        }
+      }
+    }
+  }
+}
+
+/**
+ * openProvider LE_AUDIO_SOFTWARE_DECODING_DATAPATH
+ */
+class BluetoothAudioProviderLeAudioInputSoftwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH);
+    OpenProviderHelper(SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  static constexpr int32_t le_audio_input_sample_rates_[] = {
+      0, 8000, 16000, 24000, 32000, 44100, 48000};
+  static constexpr int8_t le_audio_input_bits_per_samples_[] = {0, 16, 24};
+  static constexpr ChannelMode le_audio_input_channel_modes_[] = {
+      ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
+  static constexpr int32_t le_audio_input_data_interval_us_[] = {
+      0 /* Invalid */, 10000 /* Valid 10ms */};
+};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH can be started and
+ * stopped
+ */
+TEST_P(BluetoothAudioProviderLeAudioInputSoftwareAidl,
+       OpenLeAudioInputSoftwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH can be started and
+ * stopped with different PCM config
+ */
+TEST_P(BluetoothAudioProviderLeAudioInputSoftwareAidl,
+       StartAndEndLeAudioInputSessionWithPossiblePcmConfig) {
+  for (auto sample_rate : le_audio_input_sample_rates_) {
+    for (auto bits_per_sample : le_audio_input_bits_per_samples_) {
+      for (auto channel_mode : le_audio_input_channel_modes_) {
+        for (auto data_interval_us : le_audio_input_data_interval_us_) {
+          PcmConfiguration pcm_config{
+              .sampleRateHz = sample_rate,
+              .bitsPerSample = bits_per_sample,
+              .channelMode = channel_mode,
+              .dataIntervalUs = data_interval_us,
+          };
+          bool is_codec_config_valid =
+              IsPcmConfigSupported(pcm_config) && pcm_config.dataIntervalUs > 0;
+          DataMQDesc mq_desc;
+          auto aidl_retval = audio_provider_->startSession(
+              audio_port_, AudioConfiguration(pcm_config), latency_modes,
+              &mq_desc);
+          DataMQ data_mq(mq_desc);
+
+          EXPECT_EQ(aidl_retval.isOk(), is_codec_config_valid);
+          if (is_codec_config_valid) {
+            EXPECT_TRUE(data_mq.isValid());
+          }
+          EXPECT_TRUE(audio_provider_->endSession().isOk());
+        }
+      }
+    }
+  }
+}
+
+/**
+ * openProvider LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderLeAudioOutputHardwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+    OpenProviderHelper(
+        SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+    ASSERT_TRUE(temp_provider_capabilities_.empty() ||
+                audio_provider_ != nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  bool IsOffloadOutputSupported() {
+    for (auto& capability : temp_provider_capabilities_) {
+      if (capability.getTag() != AudioCapabilities::leAudioCapabilities) {
+        continue;
+      }
+      auto& le_audio_capability =
+          capability.get<AudioCapabilities::leAudioCapabilities>();
+      if (le_audio_capability.unicastEncodeCapability.codecType !=
+          CodecType::UNKNOWN)
+        return true;
+    }
+    return false;
+  }
+
+  std::vector<Lc3Configuration> GetUnicastLc3SupportedList(bool decoding,
+                                                           bool supported) {
+    std::vector<Lc3Configuration> le_audio_codec_configs;
+    if (!supported) {
+      Lc3Configuration lc3_config{.samplingFrequencyHz = 0, .pcmBitDepth = 0};
+      le_audio_codec_configs.push_back(lc3_config);
+      return le_audio_codec_configs;
+    }
+
+    // There might be more than one LeAudioCodecCapabilitiesSetting
+    std::vector<Lc3Capabilities> lc3_capabilities;
+    for (auto& capability : temp_provider_capabilities_) {
+      if (capability.getTag() != AudioCapabilities::leAudioCapabilities) {
+        continue;
+      }
+      auto& le_audio_capability =
+          capability.get<AudioCapabilities::leAudioCapabilities>();
+      auto& unicast_capability =
+          decoding ? le_audio_capability.unicastDecodeCapability
+                   : le_audio_capability.unicastEncodeCapability;
+      if (unicast_capability.codecType != CodecType::LC3) {
+        continue;
+      }
+      auto& lc3_capability = unicast_capability.leAudioCodecCapabilities.get<
+          UnicastCapability::LeAudioCodecCapabilities::lc3Capabilities>();
+      lc3_capabilities.push_back(lc3_capability);
+    }
+
+    // Combine those parameters into one list of LeAudioCodecConfiguration
+    // This seems horrible, but usually each Lc3Capability only contains a
+    // single Lc3Configuration, which means every array has a length of 1.
+    for (auto& lc3_capability : lc3_capabilities) {
+      for (int32_t samplingFrequencyHz : lc3_capability.samplingFrequencyHz) {
+        for (int32_t frameDurationUs : lc3_capability.frameDurationUs) {
+          for (int32_t octetsPerFrame : lc3_capability.octetsPerFrame) {
+            Lc3Configuration lc3_config = {
+                .samplingFrequencyHz = samplingFrequencyHz,
+                .frameDurationUs = frameDurationUs,
+                .octetsPerFrame = octetsPerFrame,
+            };
+            le_audio_codec_configs.push_back(lc3_config);
+          }
+        }
+      }
+    }
+
+    return le_audio_codec_configs;
+  }
+
+  LeAudioCodecCapabilitiesSetting temp_le_audio_capabilities_;
+};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped
+ */
+TEST_P(BluetoothAudioProviderLeAudioOutputHardwareAidl,
+       OpenLeAudioOutputHardwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped with Unicast hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderLeAudioOutputHardwareAidl,
+       StartAndEndLeAudioOutputSessionWithPossibleUnicastConfig) {
+  if (!IsOffloadOutputSupported()) {
+    return;
+  }
+
+  auto lc3_codec_configs =
+      GetUnicastLc3SupportedList(false /* decoding */, true /* supported */);
+  LeAudioConfiguration le_audio_config = {
+      .codecType = CodecType::LC3,
+      .peerDelayUs = 0,
+  };
+
+  for (auto& lc3_config : lc3_codec_configs) {
+    le_audio_config.leAudioCodecConfig
+        .set<LeAudioCodecConfiguration::lc3Config>(lc3_config);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(le_audio_config), latency_modes,
+        &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped with Unicast hardware encoding config
+ *
+ * Disabled since offload codec checking is not ready
+ */
+TEST_P(BluetoothAudioProviderLeAudioOutputHardwareAidl,
+       DISABLED_StartAndEndLeAudioOutputSessionWithInvalidAudioConfiguration) {
+  if (!IsOffloadOutputSupported()) {
+    return;
+  }
+
+  auto lc3_codec_configs =
+      GetUnicastLc3SupportedList(false /* decoding */, false /* supported */);
+  LeAudioConfiguration le_audio_config = {
+      .codecType = CodecType::LC3,
+      .peerDelayUs = 0,
+  };
+
+  for (auto& lc3_config : lc3_codec_configs) {
+    le_audio_config.leAudioCodecConfig
+        .set<LeAudioCodecConfiguration::lc3Config>(lc3_config);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(le_audio_config), latency_modes,
+        &mq_desc);
+
+    // AIDL call should fail on invalid codec
+    ASSERT_FALSE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * openProvider LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH
+ */
+class BluetoothAudioProviderLeAudioInputHardwareAidl
+    : public BluetoothAudioProviderLeAudioOutputHardwareAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH);
+    OpenProviderHelper(
+        SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH);
+    ASSERT_TRUE(temp_provider_capabilities_.empty() ||
+                audio_provider_ != nullptr);
+  }
+
+  bool IsOffloadInputSupported() {
+    for (auto& capability : temp_provider_capabilities_) {
+      if (capability.getTag() != AudioCapabilities::leAudioCapabilities) {
+        continue;
+      }
+      auto& le_audio_capability =
+          capability.get<AudioCapabilities::leAudioCapabilities>();
+      if (le_audio_capability.unicastDecodeCapability.codecType !=
+          CodecType::UNKNOWN)
+        return true;
+    }
+    return false;
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped
+ */
+TEST_P(BluetoothAudioProviderLeAudioInputHardwareAidl,
+       OpenLeAudioInputHardwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped with Unicast hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderLeAudioInputHardwareAidl,
+       StartAndEndLeAudioInputSessionWithPossibleUnicastConfig) {
+  if (!IsOffloadInputSupported()) {
+    return;
+  }
+
+  auto lc3_codec_configs =
+      GetUnicastLc3SupportedList(true /* decoding */, true /* supported */);
+  LeAudioConfiguration le_audio_config = {
+      .codecType = CodecType::LC3,
+      .peerDelayUs = 0,
+  };
+
+  for (auto& lc3_config : lc3_codec_configs) {
+    le_audio_config.leAudioCodecConfig
+        .set<LeAudioCodecConfiguration::lc3Config>(lc3_config);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(le_audio_config), latency_modes,
+        &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped with Unicast hardware encoding config
+ *
+ * Disabled since offload codec checking is not ready
+ */
+TEST_P(BluetoothAudioProviderLeAudioInputHardwareAidl,
+       DISABLED_StartAndEndLeAudioInputSessionWithInvalidAudioConfiguration) {
+  if (!IsOffloadInputSupported()) {
+    return;
+  }
+
+  auto lc3_codec_configs =
+      GetUnicastLc3SupportedList(true /* decoding */, false /* supported */);
+  LeAudioConfiguration le_audio_config = {
+      .codecType = CodecType::LC3,
+      .peerDelayUs = 0,
+  };
+
+  for (auto& lc3_config : lc3_codec_configs) {
+    le_audio_config.leAudioCodecConfig
+        .set<LeAudioCodecConfiguration::lc3Config>(lc3_config);
+
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(le_audio_config), latency_modes,
+        &mq_desc);
+
+    // AIDL call should fail on invalid codec
+    ASSERT_FALSE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * openProvider LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderLeAudioBroadcastSoftwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH);
+    OpenProviderHelper(
+        SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  static constexpr int32_t le_audio_output_sample_rates_[] = {
+      0, 8000, 16000, 24000, 32000, 44100, 48000,
+  };
+  static constexpr int8_t le_audio_output_bits_per_samples_[] = {0, 16, 24};
+  static constexpr ChannelMode le_audio_output_channel_modes_[] = {
+      ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
+  static constexpr int32_t le_audio_output_data_interval_us_[] = {
+      0 /* Invalid */, 10000 /* Valid 10ms */};
+};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH can be started and
+ * stopped
+ */
+TEST_P(BluetoothAudioProviderLeAudioBroadcastSoftwareAidl,
+       OpenLeAudioOutputSoftwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH can be started and
+ * stopped with different PCM config
+ */
+TEST_P(BluetoothAudioProviderLeAudioBroadcastSoftwareAidl,
+       StartAndEndLeAudioOutputSessionWithPossiblePcmConfig) {
+  for (auto sample_rate : le_audio_output_sample_rates_) {
+    for (auto bits_per_sample : le_audio_output_bits_per_samples_) {
+      for (auto channel_mode : le_audio_output_channel_modes_) {
+        for (auto data_interval_us : le_audio_output_data_interval_us_) {
+          PcmConfiguration pcm_config{
+              .sampleRateHz = sample_rate,
+              .bitsPerSample = bits_per_sample,
+              .channelMode = channel_mode,
+              .dataIntervalUs = data_interval_us,
+          };
+          bool is_codec_config_valid =
+              IsPcmConfigSupported(pcm_config) && pcm_config.dataIntervalUs > 0;
+          DataMQDesc mq_desc;
+          auto aidl_retval = audio_provider_->startSession(
+              audio_port_, AudioConfiguration(pcm_config), latency_modes,
+              &mq_desc);
+          DataMQ data_mq(mq_desc);
+
+          EXPECT_EQ(aidl_retval.isOk(), is_codec_config_valid);
+          if (is_codec_config_valid) {
+            EXPECT_TRUE(data_mq.isValid());
+          }
+          EXPECT_TRUE(audio_provider_->endSession().isOk());
+        }
+      }
+    }
+  }
+}
+
+/**
+ * openProvider LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderLeAudioBroadcastHardwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(
+        SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+    OpenProviderHelper(
+        SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+    ASSERT_TRUE(temp_provider_capabilities_.empty() ||
+                audio_provider_ != nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  bool IsBroadcastOffloadSupported() {
+    for (auto& capability : temp_provider_capabilities_) {
+      if (capability.getTag() != AudioCapabilities::leAudioCapabilities) {
+        continue;
+      }
+      auto& le_audio_capability =
+          capability.get<AudioCapabilities::leAudioCapabilities>();
+      if (le_audio_capability.broadcastCapability.codecType !=
+          CodecType::UNKNOWN)
+        return true;
+    }
+    return false;
+  }
+
+  std::vector<Lc3Configuration> GetBroadcastLc3SupportedList(bool supported) {
+    std::vector<Lc3Configuration> le_audio_codec_configs;
+    if (!supported) {
+      Lc3Configuration lc3_config{.samplingFrequencyHz = 0, .pcmBitDepth = 0};
+      le_audio_codec_configs.push_back(lc3_config);
+      return le_audio_codec_configs;
+    }
+
+    // There might be more than one LeAudioCodecCapabilitiesSetting
+    std::vector<Lc3Capabilities> lc3_capabilities;
+    for (auto& capability : temp_provider_capabilities_) {
+      if (capability.getTag() != AudioCapabilities::leAudioCapabilities) {
+        continue;
+      }
+      auto& le_audio_capability =
+          capability.get<AudioCapabilities::leAudioCapabilities>();
+      auto& broadcast_capability = le_audio_capability.broadcastCapability;
+      if (broadcast_capability.codecType != CodecType::LC3) {
+        continue;
+      }
+      auto& lc3_capability = broadcast_capability.leAudioCodecCapabilities.get<
+          BroadcastCapability::LeAudioCodecCapabilities::lc3Capabilities>();
+      for (int idx = 0; idx < lc3_capability->size(); idx++)
+        lc3_capabilities.push_back(*lc3_capability->at(idx));
+    }
+
+    // Combine those parameters into one list of LeAudioCodecConfiguration
+    // This seems horrible, but usually each Lc3Capability only contains a
+    // single Lc3Configuration, which means every array has a length of 1.
+    for (auto& lc3_capability : lc3_capabilities) {
+      for (int32_t samplingFrequencyHz : lc3_capability.samplingFrequencyHz) {
+        for (int32_t frameDurationUs : lc3_capability.frameDurationUs) {
+          for (int32_t octetsPerFrame : lc3_capability.octetsPerFrame) {
+            Lc3Configuration lc3_config = {
+                .samplingFrequencyHz = samplingFrequencyHz,
+                .frameDurationUs = frameDurationUs,
+                .octetsPerFrame = octetsPerFrame,
+            };
+            le_audio_codec_configs.push_back(lc3_config);
+          }
+        }
+      }
+    }
+
+    return le_audio_codec_configs;
+  }
+
+  LeAudioCodecCapabilitiesSetting temp_le_audio_capabilities_;
+};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be
+ * started and stopped
+ */
+TEST_P(BluetoothAudioProviderLeAudioBroadcastHardwareAidl,
+       OpenLeAudioOutputHardwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be
+ * started and stopped with broadcast hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderLeAudioBroadcastHardwareAidl,
+       StartAndEndLeAudioBroadcastSessionWithPossibleBroadcastConfig) {
+  if (!IsBroadcastOffloadSupported()) {
+    return;
+  }
+
+  auto lc3_codec_configs = GetBroadcastLc3SupportedList(true /* supported */);
+  LeAudioBroadcastConfiguration le_audio_broadcast_config = {
+      .codecType = CodecType::LC3,
+      .streamMap = {},
+  };
+
+  for (auto& lc3_config : lc3_codec_configs) {
+    le_audio_broadcast_config.streamMap[0]
+        .leAudioCodecConfig.set<LeAudioCodecConfiguration::lc3Config>(
+            lc3_config);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(le_audio_broadcast_config),
+        latency_modes, &mq_desc);
+
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be
+ * started and stopped with Broadcast hardware encoding config
+ *
+ * Disabled since offload codec checking is not ready
+ */
+TEST_P(
+    BluetoothAudioProviderLeAudioBroadcastHardwareAidl,
+    DISABLED_StartAndEndLeAudioBroadcastSessionWithInvalidAudioConfiguration) {
+  if (!IsBroadcastOffloadSupported()) {
+    return;
+  }
+
+  auto lc3_codec_configs = GetBroadcastLc3SupportedList(false /* supported */);
+  LeAudioBroadcastConfiguration le_audio_broadcast_config = {
+      .codecType = CodecType::LC3,
+      .streamMap = {},
+  };
+
+  for (auto& lc3_config : lc3_codec_configs) {
+    le_audio_broadcast_config.streamMap[0]
+        .leAudioCodecConfig.set<LeAudioCodecConfiguration::lc3Config>(
+            lc3_config);
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(le_audio_broadcast_config),
+        latency_modes, &mq_desc);
+
+    // AIDL call should fail on invalid codec
+    ASSERT_FALSE(aidl_retval.isOk());
+    EXPECT_TRUE(audio_provider_->endSession().isOk());
+  }
+}
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderFactoryAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance, BluetoothAudioProviderFactoryAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderA2dpSoftwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance, BluetoothAudioProviderA2dpSoftwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderA2dpHardwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance, BluetoothAudioProviderA2dpHardwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderHearingAidSoftwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderHearingAidSoftwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderLeAudioOutputSoftwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderLeAudioOutputSoftwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderLeAudioInputSoftwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderLeAudioInputSoftwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderLeAudioOutputHardwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderLeAudioOutputHardwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderLeAudioInputHardwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderLeAudioInputHardwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderLeAudioBroadcastSoftwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderLeAudioBroadcastSoftwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderLeAudioBroadcastHardwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderLeAudioBroadcastHardwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  ABinderProcess_setThreadPoolMaxThreadCount(1);
+  ABinderProcess_startThreadPool();
+  return RUN_ALL_TESTS();
+}
diff --git a/bluetooth/audio/utils/Android.bp b/bluetooth/audio/utils/Android.bp
index 974357e..42f9455 100644
--- a/bluetooth/audio/utils/Android.bp
+++ b/bluetooth/audio/utils/Android.bp
@@ -14,10 +14,8 @@
     srcs: [
         "session/BluetoothAudioSession.cpp",
         "session/BluetoothAudioSession_2_1.cpp",
-        "session/BluetoothAudioSession_2_2.cpp",
         "session/BluetoothAudioSupportedCodecsDB.cpp",
         "session/BluetoothAudioSupportedCodecsDB_2_1.cpp",
-        "session/BluetoothAudioSupportedCodecsDB_2_2.cpp",
     ],
     export_include_dirs: ["session/"],
     header_libs: ["libhardware_headers"],
@@ -25,7 +23,6 @@
         "android.hardware.audio.common@5.0",
         "android.hardware.bluetooth.audio@2.0",
         "android.hardware.bluetooth.audio@2.1",
-        "android.hardware.bluetooth.audio@2.2",
         "libbase",
         "libcutils",
         "libfmq",
@@ -49,7 +46,6 @@
     shared_libs: [
         "android.hardware.bluetooth.audio@2.0",
         "android.hardware.bluetooth.audio@2.1",
-        "android.hardware.bluetooth.audio@2.2",
         "libbase",
         "libcutils",
         "libbinder_ndk",
diff --git a/bluetooth/audio/utils/OWNERS b/bluetooth/audio/utils/OWNERS
deleted file mode 100644
index 17ea464..0000000
--- a/bluetooth/audio/utils/OWNERS
+++ /dev/null
@@ -1,4 +0,0 @@
-include platform/packages/modules/Bluetooth:/OWNERS
-
-cheneyni@google.com
-aliceypkuo@google.com
\ No newline at end of file
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
index 516ebe8..8fd1ab5 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
@@ -132,9 +132,13 @@
 // Stores the supported setting of audio location, connected device, and the
 // channel count for each device
 std::vector<std::tuple<AudioLocation, uint8_t, uint8_t>>
-    supportedDeviceSetting = {std::make_tuple(stereoAudio, 2, 1),
-                              std::make_tuple(monoAudio, 1, 2),
-                              std::make_tuple(monoAudio, 1, 1)};
+    supportedDeviceSetting = {
+        // Stereo, two connected device, one for L one for R
+        std::make_tuple(stereoAudio, 2, 1),
+        // Stereo, one connected device for both L and R
+        std::make_tuple(stereoAudio, 1, 2),
+        // Mono
+        std::make_tuple(monoAudio, 1, 1)};
 
 template <class T>
 bool BluetoothAudioCodecs::ContainedInVector(
@@ -303,7 +307,9 @@
   if (session_type !=
           SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
       session_type !=
-          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH &&
+      session_type !=
+          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
     return false;
   }
   return true;
@@ -356,6 +362,7 @@
         break;
       case CodecType::UNKNOWN:
       case CodecType::VENDOR:
+      case CodecType::APTX_ADAPTIVE:
         break;
     }
   }
@@ -419,6 +426,7 @@
         return true;
       }
       break;
+    case CodecType::APTX_ADAPTIVE:
     case CodecType::UNKNOWN:
     case CodecType::VENDOR:
       break;
@@ -445,7 +453,9 @@
   if (session_type !=
           SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
       session_type !=
-          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH &&
+      session_type !=
+          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
     return std::vector<LeAudioCodecCapabilitiesSetting>(0);
   }
 
@@ -487,4 +497,4 @@
 }  // namespace bluetooth
 }  // namespace hardware
 }  // namespace android
-}  // namespace aidl
\ No newline at end of file
+}  // namespace aidl
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
index f626db8..e700e7e 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
@@ -94,6 +94,8 @@
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(LeAudioConfiguration{});
+      case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+        return AudioConfiguration(LeAudioBroadcastConfiguration{});
       default:
         return AudioConfiguration(PcmConfiguration{});
     }
@@ -137,6 +139,8 @@
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ ==
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+       session_type_ ==
+           SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        (data_mq_ != nullptr && data_mq_->isValid()));
   return stack_iface_ != nullptr && is_mq_valid && audio_config_ != nullptr;
 }
@@ -194,7 +198,7 @@
                << " has NO session";
     return false;
   }
-  auto hal_retval = stack_iface_->startStream();
+  auto hal_retval = stack_iface_->startStream(false);
   if (!hal_retval.isOk()) {
     LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
                  << toString(session_type_) << " failed";
@@ -259,7 +263,9 @@
       (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
        session_type_ == SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH ||
        session_type_ == SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH ||
-       session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH);
+       session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
+       session_type_ ==
+           SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH);
   bool is_offload_a2dp_session =
       (session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
   bool is_offload_le_audio_session =
@@ -410,6 +416,22 @@
   }
 }
 
+void BluetoothAudioSession::ReportLowLatencyModeAllowedChanged(bool allowed) {
+  std::lock_guard<std::recursive_mutex> guard(mutex_);
+  if (observers_.empty()) {
+    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
+                 << " has NO port state observer";
+    return;
+  }
+  for (auto& observer : observers_) {
+    uint16_t cookie = observer.first;
+    std::shared_ptr<PortStatusCallbacks> callback = observer.second;
+    LOG(INFO) << __func__
+              << " - allowed=" << (allowed ? " allowed" : " disallowed");
+    callback->low_latency_mode_allowed_cb_(cookie, allowed);
+  }
+}
+
 bool BluetoothAudioSession::GetPresentationPosition(
     PresentationPosition& presentation_position) {
   std::lock_guard<std::recursive_mutex> guard(mutex_);
@@ -508,6 +530,21 @@
   }
 }
 
+void BluetoothAudioSession::SetLatencyMode(LatencyMode latency_mode) {
+  std::lock_guard<std::recursive_mutex> guard(mutex_);
+  if (!IsSessionReady()) {
+    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_)
+               << " has NO session";
+    return;
+  }
+
+  auto hal_retval = stack_iface_->setLatencyMode(latency_mode);
+  if (!hal_retval.isOk()) {
+    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
+                 << toString(session_type_) << " failed";
+  }
+}
+
 bool BluetoothAudioSession::IsAidlAvailable() {
   if (is_aidl_checked) return is_aidl_available;
   is_aidl_available =
@@ -547,4 +584,4 @@
 }  // namespace bluetooth
 }  // namespace hardware
 }  // namespace android
-}  // namespace aidl
\ No newline at end of file
+}  // namespace aidl
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.h b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.h
index 73bc0f8..6e390cc 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.h
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.h
@@ -20,6 +20,7 @@
 #include <aidl/android/hardware/audio/common/SourceMetadata.h>
 #include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.h>
 #include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioProviderFactory.h>
+#include <aidl/android/hardware/bluetooth/audio/LatencyMode.h>
 #include <aidl/android/hardware/bluetooth/audio/SessionType.h>
 #include <fmq/AidlMessageQueue.h>
 #include <hardware/audio.h>
@@ -91,6 +92,15 @@
    * @param: cookie - indicates which bluetooth_audio output should handle
    ***/
   std::function<void(uint16_t cookie)> audio_configuration_changed_cb_;
+  /***
+   * low_latency_mode_allowed_cb_ - when the Bluetooth stack low latency mode
+   * allowed or disallowed, the BluetoothAudioProvider will invoke
+   * this callback to report to the bluetooth_audio module.
+   * @param: cookie - indicates which bluetooth_audio output should handle
+   * @param: allowed - indicates if low latency mode is allowed
+   ***/
+  std::function<void(uint16_t cookie, bool allowed)>
+      low_latency_mode_allowed_cb_;
 };
 
 class BluetoothAudioSession {
@@ -155,6 +165,13 @@
   void ReportAudioConfigChanged(const AudioConfiguration& audio_config);
 
   /***
+   * The report function is used to report that the Bluetooth stack has notified
+   * the low latency mode allowed changed, and will invoke
+   * low_latency_mode_allowed_changed_cb to notify registered bluetooth_audio
+   * outputs
+   ***/
+  void ReportLowLatencyModeAllowedChanged(bool allowed);
+  /***
    * Those control functions are for the bluetooth_audio module to start,
    * suspend, stop stream, to check position, and to update metadata.
    ***/
@@ -164,6 +181,7 @@
   bool GetPresentationPosition(PresentationPosition& presentation_position);
   void UpdateSourceMetadata(const struct source_metadata& source_metadata);
   void UpdateSinkMetadata(const struct sink_metadata& sink_metadata);
+  void SetLatencyMode(LatencyMode latency_mode);
 
   // The control function writes stream to FMQ
   size_t OutWritePcmData(const void* buffer, size_t bytes);
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
index aff01e5..451a31f 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
@@ -86,6 +86,8 @@
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(LeAudioConfiguration{});
+      case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+        return AudioConfiguration(LeAudioBroadcastConfiguration{});
       default:
         return AudioConfiguration(PcmConfiguration{});
     }
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionReport.h b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionReport.h
index 18569c3..03776b5 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionReport.h
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionReport.h
@@ -78,6 +78,18 @@
       session_ptr->ReportAudioConfigChanged(audio_config);
     }
   }
+  /***
+   * The API reports the Bluetooth stack has replied the changed of the low
+   * latency audio allowed, and will inform registered bluetooth_audio outputs
+   ***/
+  static void ReportLowLatencyModeAllowedChanged(
+    const SessionType& session_type, bool allowed) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      session_ptr->ReportLowLatencyModeAllowedChanged(allowed);
+    }
+  }
 };
 
 }  // namespace audio
diff --git a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
index 632a389..a4664f1 100644
--- a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
+++ b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
@@ -28,7 +28,6 @@
 #include "../aidl_session/BluetoothAudioSessionControl.h"
 #include "HidlToAidlMiddleware_2_0.h"
 #include "HidlToAidlMiddleware_2_1.h"
-#include "HidlToAidlMiddleware_2_2.h"
 
 namespace aidl {
 namespace android {
@@ -82,15 +81,10 @@
 using Lc3FrameDuration_2_1 =
     ::android::hardware::bluetooth::audio::V2_1::Lc3FrameDuration;
 
-using LeAudioConfig_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration;
-using LeAudioMode_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::LeAudioMode;
-
 std::mutex legacy_callback_lock;
 std::unordered_map<
     SessionType,
-    std::unordered_map<uint16_t, std::shared_ptr<PortStatusCallbacks_2_2>>>
+    std::unordered_map<uint16_t, std::shared_ptr<PortStatusCallbacks_2_0>>>
     legacy_callback_table;
 
 const static std::unordered_map<SessionType_2_1, SessionType>
@@ -418,102 +412,47 @@
 }
 
 inline Lc3CodecConfig_2_1 to_hidl_leaudio_config_2_1(
-    const LeAudioConfiguration& leaudio_config) {
+    const LeAudioConfiguration& unicast_config) {
   Lc3CodecConfig_2_1 hidl_lc3_codec_config = {
       .audioChannelAllocation = 0,
   };
-  if (leaudio_config.modeConfig.getTag() ==
-      LeAudioConfiguration::LeAudioModeConfig::unicastConfig) {
-    auto& unicast_config =
-        leaudio_config.modeConfig
-            .get<LeAudioConfiguration::LeAudioModeConfig::unicastConfig>();
-    if (unicast_config.leAudioCodecConfig.getTag() ==
-        LeAudioCodecConfiguration::lc3Config) {
-      LOG(FATAL) << __func__ << ": unexpected codec type(vendor?)";
-    }
-    auto& le_codec_config = unicast_config.leAudioCodecConfig
-                                .get<LeAudioCodecConfiguration::lc3Config>();
-
-    hidl_lc3_codec_config.lc3Config = to_hidl_lc3_config_2_1(le_codec_config);
-
-    for (const auto& map : unicast_config.streamMap) {
-      hidl_lc3_codec_config.audioChannelAllocation |=
-          map.audioChannelAllocation;
-    }
-  } else {
-    // NOTE: Broadcast is not officially supported in HIDL
-    auto& bcast_config =
-        leaudio_config.modeConfig
-            .get<LeAudioConfiguration::LeAudioModeConfig::broadcastConfig>();
-    if (bcast_config.streamMap.empty()) {
-      return hidl_lc3_codec_config;
-    }
-    if (bcast_config.streamMap[0].leAudioCodecConfig.getTag() !=
-        LeAudioCodecConfiguration::lc3Config) {
-      LOG(FATAL) << __func__ << ": unexpected codec type(vendor?)";
-    }
-    auto& le_codec_config =
-        bcast_config.streamMap[0]
-            .leAudioCodecConfig.get<LeAudioCodecConfiguration::lc3Config>();
-    hidl_lc3_codec_config.lc3Config = to_hidl_lc3_config_2_1(le_codec_config);
-
-    for (const auto& map : bcast_config.streamMap) {
-      hidl_lc3_codec_config.audioChannelAllocation |=
-          map.audioChannelAllocation;
-    }
+  if (unicast_config.leAudioCodecConfig.getTag() ==
+      LeAudioCodecConfiguration::lc3Config) {
+    LOG(FATAL) << __func__ << ": unexpected codec type(vendor?)";
   }
+  auto& le_codec_config = unicast_config.leAudioCodecConfig
+                              .get<LeAudioCodecConfiguration::lc3Config>();
 
+  hidl_lc3_codec_config.lc3Config = to_hidl_lc3_config_2_1(le_codec_config);
+
+  for (const auto& map : unicast_config.streamMap) {
+    hidl_lc3_codec_config.audioChannelAllocation |= map.audioChannelAllocation;
+  }
   return hidl_lc3_codec_config;
 }
 
-inline LeAudioConfig_2_2 to_hidl_leaudio_config_2_2(
-    const LeAudioConfiguration& leaudio_config) {
-  LeAudioConfig_2_2 hidl_leaudio_config;
-
-  if (leaudio_config.modeConfig.getTag() ==
-      LeAudioConfiguration::LeAudioModeConfig::unicastConfig) {
-    hidl_leaudio_config.mode = LeAudioMode_2_2::UNICAST;
-    auto& unicast_config =
-        leaudio_config.modeConfig
-            .get<LeAudioConfiguration::LeAudioModeConfig::unicastConfig>();
-    ::android::hardware::bluetooth::audio::V2_2::UnicastConfig
-        hidl_unicast_config;
-    hidl_unicast_config.peerDelay =
-        static_cast<uint32_t>(unicast_config.peerDelay);
-
-    auto& lc3_config = unicast_config.leAudioCodecConfig
-                           .get<LeAudioCodecConfiguration::lc3Config>();
-    hidl_unicast_config.lc3Config = to_hidl_lc3_config_2_1(lc3_config);
-
-    hidl_unicast_config.streamMap.resize(unicast_config.streamMap.size());
-    for (int i = 0; i < unicast_config.streamMap.size(); i++) {
-      hidl_unicast_config.streamMap[i].audioChannelAllocation =
-          static_cast<uint32_t>(
-              unicast_config.streamMap[i].audioChannelAllocation);
-      hidl_unicast_config.streamMap[i].streamHandle =
-          static_cast<uint16_t>(unicast_config.streamMap[i].streamHandle);
-    }
-  } else if (leaudio_config.modeConfig.getTag() ==
-             LeAudioConfiguration::LeAudioModeConfig::broadcastConfig) {
-    hidl_leaudio_config.mode = LeAudioMode_2_2::BROADCAST;
-    auto bcast_config =
-        leaudio_config.modeConfig
-            .get<LeAudioConfiguration::LeAudioModeConfig::broadcastConfig>();
-    ::android::hardware::bluetooth::audio::V2_2::BroadcastConfig
-        hidl_bcast_config;
-    hidl_bcast_config.streamMap.resize(bcast_config.streamMap.size());
-    for (int i = 0; i < bcast_config.streamMap.size(); i++) {
-      hidl_bcast_config.streamMap[i].audioChannelAllocation =
-          static_cast<uint32_t>(
-              bcast_config.streamMap[i].audioChannelAllocation);
-      hidl_bcast_config.streamMap[i].streamHandle =
-          static_cast<uint16_t>(bcast_config.streamMap[i].streamHandle);
-      hidl_bcast_config.streamMap[i].lc3Config = to_hidl_lc3_config_2_1(
-          bcast_config.streamMap[i]
-              .leAudioCodecConfig.get<LeAudioCodecConfiguration::lc3Config>());
-    }
+inline Lc3CodecConfig_2_1 to_hidl_leaudio_broadcast_config_2_1(
+    const LeAudioBroadcastConfiguration& broadcast_config) {
+  Lc3CodecConfig_2_1 hidl_lc3_codec_config = {
+      .audioChannelAllocation = 0,
+  };
+  // NOTE: Broadcast is not officially supported in HIDL
+  if (broadcast_config.streamMap.empty()) {
+    return hidl_lc3_codec_config;
   }
-  return hidl_leaudio_config;
+  if (broadcast_config.streamMap[0].leAudioCodecConfig.getTag() !=
+      LeAudioCodecConfiguration::lc3Config) {
+    LOG(FATAL) << __func__ << ": unexpected codec type(vendor?)";
+  }
+  auto& le_codec_config =
+      broadcast_config.streamMap[0]
+          .leAudioCodecConfig.get<LeAudioCodecConfiguration::lc3Config>();
+  hidl_lc3_codec_config.lc3Config = to_hidl_lc3_config_2_1(le_codec_config);
+
+  for (const auto& map : broadcast_config.streamMap) {
+    hidl_lc3_codec_config.audioChannelAllocation |= map.audioChannelAllocation;
+  }
+  return hidl_lc3_codec_config;
 }
 
 inline AudioConfig_2_1 to_hidl_audio_config_2_1(
@@ -532,25 +471,9 @@
       hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_config_2_1(
           audio_config.get<AudioConfiguration::leAudioConfig>()));
       break;
-  }
-  return hidl_audio_config;
-}
-
-inline AudioConfig_2_2 to_hidl_audio_config_2_2(
-    const AudioConfiguration& audio_config) {
-  AudioConfig_2_2 hidl_audio_config;
-  switch (audio_config.getTag()) {
-    case AudioConfiguration::pcmConfig:
-      hidl_audio_config.pcmConfig(to_hidl_pcm_config_2_1(
-          audio_config.get<AudioConfiguration::pcmConfig>()));
-      break;
-    case AudioConfiguration::a2dpConfig:
-      hidl_audio_config.codecConfig(to_hidl_codec_config_2_0(
-          audio_config.get<AudioConfiguration::a2dpConfig>()));
-      break;
-    case AudioConfiguration::leAudioConfig:
-      hidl_audio_config.leAudioConfig(to_hidl_leaudio_config_2_2(
-          audio_config.get<AudioConfiguration::leAudioConfig>()));
+    case AudioConfiguration::leAudioBroadcastConfig:
+      hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_broadcast_config_2_1(
+          audio_config.get<AudioConfiguration::leAudioBroadcastConfig>()));
       break;
   }
   return hidl_audio_config;
@@ -571,18 +494,58 @@
 uint16_t HidlToAidlMiddleware_2_0::RegisterControlResultCback(
     const SessionType_2_0& session_type,
     const PortStatusCallbacks_2_0& cbacks) {
-  PortStatusCallbacks_2_2 callback_2_2{
-      .control_result_cb_ = cbacks.control_result_cb_,
-      .session_changed_cb_ = cbacks.session_changed_cb_,
+  LOG(INFO) << __func__ << ": " << toString(session_type);
+  auto aidl_session_type = from_session_type_2_0(session_type);
+  // Pass the exact reference to the lambda
+  auto& session_legacy_callback_table =
+      legacy_callback_table[aidl_session_type];
+  PortStatusCallbacks aidl_callbacks{};
+  if (cbacks.control_result_cb_) {
+    aidl_callbacks.control_result_cb_ =
+        [&session_legacy_callback_table](uint16_t cookie, bool start_resp,
+                                         const BluetoothAudioStatus& status) {
+          if (session_legacy_callback_table.find(cookie) ==
+              session_legacy_callback_table.end()) {
+            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
+            return;
+          }
+          auto& cback = session_legacy_callback_table[cookie];
+          cback->control_result_cb_(cookie, start_resp, to_hidl_status(status));
+        };
+  }
+  if (cbacks.session_changed_cb_) {
+    aidl_callbacks.session_changed_cb_ =
+        [&session_legacy_callback_table](uint16_t cookie) {
+          if (session_legacy_callback_table.find(cookie) ==
+              session_legacy_callback_table.end()) {
+            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
+            return;
+          }
+          auto& cback = session_legacy_callback_table[cookie];
+          cback->session_changed_cb_(cookie);
+        };
   };
-  return HidlToAidlMiddleware_2_2::RegisterControlResultCback(
-      static_cast<SessionType_2_1>(session_type), callback_2_2);
+  auto cookie = BluetoothAudioSessionControl::RegisterControlResultCback(
+      aidl_session_type, aidl_callbacks);
+  {
+    std::lock_guard<std::mutex> guard(legacy_callback_lock);
+    session_legacy_callback_table[cookie] =
+        std::make_shared<PortStatusCallbacks_2_0>(cbacks);
+  }
+  return cookie;
 }
 
 void HidlToAidlMiddleware_2_0::UnregisterControlResultCback(
     const SessionType_2_0& session_type, uint16_t cookie) {
-  HidlToAidlMiddleware_2_2::UnregisterControlResultCback(
-      static_cast<SessionType_2_1>(session_type), cookie);
+  LOG(INFO) << __func__ << ": " << toString(session_type);
+  auto aidl_session_type = from_session_type_2_0(session_type);
+  BluetoothAudioSessionControl::UnregisterControlResultCback(aidl_session_type,
+                                                             cookie);
+  auto& session_callback_table = legacy_callback_table[aidl_session_type];
+  if (session_callback_table.find(cookie) != session_callback_table.end()) {
+    std::lock_guard<std::mutex> guard(legacy_callback_lock);
+    session_callback_table.erase(cookie);
+  }
 }
 
 const AudioConfig_2_0 HidlToAidlMiddleware_2_0::GetAudioConfig(
@@ -662,124 +625,6 @@
       from_session_type_2_1(session_type)));
 }
 
-/***
- *
- * 2.2
- *
- ***/
-
-bool HidlToAidlMiddleware_2_2::IsSessionReady(
-    const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::IsSessionReady(
-      from_session_type_2_1(session_type));
-}
-
-uint16_t HidlToAidlMiddleware_2_2::RegisterControlResultCback(
-    const SessionType_2_1& session_type,
-    const PortStatusCallbacks_2_2& cbacks) {
-  LOG(INFO) << __func__ << ": " << toString(session_type);
-  auto aidl_session_type = from_session_type_2_1(session_type);
-  // Pass the exact reference to the lambda
-  auto& session_legacy_callback_table =
-      legacy_callback_table[aidl_session_type];
-  PortStatusCallbacks aidl_callbacks{};
-  if (cbacks.control_result_cb_) {
-    aidl_callbacks.control_result_cb_ =
-        [&session_legacy_callback_table](uint16_t cookie, bool start_resp,
-                                         const BluetoothAudioStatus& status) {
-          if (session_legacy_callback_table.find(cookie) ==
-              session_legacy_callback_table.end()) {
-            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
-            return;
-          }
-          auto& cback = session_legacy_callback_table[cookie];
-          cback->control_result_cb_(cookie, start_resp, to_hidl_status(status));
-        };
-  }
-  if (cbacks.session_changed_cb_) {
-    aidl_callbacks.session_changed_cb_ =
-        [&session_legacy_callback_table](uint16_t cookie) {
-          if (session_legacy_callback_table.find(cookie) ==
-              session_legacy_callback_table.end()) {
-            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
-            return;
-          }
-          auto& cback = session_legacy_callback_table[cookie];
-          cback->session_changed_cb_(cookie);
-        };
-  };
-  if (cbacks.audio_configuration_changed_cb_) {
-    aidl_callbacks.audio_configuration_changed_cb_ =
-        [&session_legacy_callback_table](uint16_t cookie) {
-          if (session_legacy_callback_table.find(cookie) ==
-              session_legacy_callback_table.end()) {
-            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
-            return;
-          }
-          auto& cback = session_legacy_callback_table[cookie];
-          cback->audio_configuration_changed_cb_(cookie);
-        };
-  };
-  auto cookie = BluetoothAudioSessionControl::RegisterControlResultCback(
-      aidl_session_type, aidl_callbacks);
-  {
-    std::lock_guard<std::mutex> guard(legacy_callback_lock);
-    session_legacy_callback_table[cookie] =
-        std::make_shared<PortStatusCallbacks_2_2>(cbacks);
-  }
-  return cookie;
-}
-
-void HidlToAidlMiddleware_2_2::UnregisterControlResultCback(
-    const SessionType_2_1& session_type, uint16_t cookie) {
-  LOG(INFO) << __func__ << ": " << toString(session_type);
-  auto aidl_session_type = from_session_type_2_1(session_type);
-  BluetoothAudioSessionControl::UnregisterControlResultCback(aidl_session_type,
-                                                             cookie);
-  auto& session_callback_table = legacy_callback_table[aidl_session_type];
-  if (session_callback_table.find(cookie) != session_callback_table.end()) {
-    std::lock_guard<std::mutex> guard(legacy_callback_lock);
-    session_callback_table.erase(cookie);
-  }
-}
-
-const AudioConfig_2_2 HidlToAidlMiddleware_2_2::GetAudioConfig(
-    const SessionType_2_1& session_type) {
-  return to_hidl_audio_config_2_2(BluetoothAudioSessionControl::GetAudioConfig(
-      from_session_type_2_1(session_type)));
-}
-
-bool HidlToAidlMiddleware_2_2::StartStream(
-    const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::StartStream(
-      from_session_type_2_1(session_type));
-}
-
-bool HidlToAidlMiddleware_2_2::SuspendStream(
-    const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::SuspendStream(
-      from_session_type_2_1(session_type));
-}
-
-void HidlToAidlMiddleware_2_2::StopStream(const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::StopStream(
-      from_session_type_2_1(session_type));
-}
-
-void HidlToAidlMiddleware_2_2::UpdateTracksMetadata(
-    const SessionType_2_1& session_type,
-    const struct source_metadata* source_metadata) {
-  return BluetoothAudioSessionControl::UpdateSourceMetadata(
-      from_session_type_2_1(session_type), *source_metadata);
-}
-
-void HidlToAidlMiddleware_2_2::UpdateSinkMetadata(
-    const SessionType_2_1& session_type,
-    const struct sink_metadata* sink_metadata) {
-  return BluetoothAudioSessionControl::UpdateSinkMetadata(
-      from_session_type_2_1(session_type), *sink_metadata);
-}
-
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
diff --git a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware_2_2.h b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware_2_2.h
deleted file mode 100644
index f6c3e5c..0000000
--- a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware_2_2.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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/bluetooth/audio/2.2/types.h>
-
-#include "../session/BluetoothAudioSession.h"
-#include "../session/BluetoothAudioSession_2_2.h"
-
-namespace aidl {
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-
-using SessionType_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::SessionType;
-using PortStatusCallbacks_2_0 =
-    ::android::bluetooth::audio::PortStatusCallbacks;
-using PortStatusCallbacks_2_2 =
-    ::android::bluetooth::audio::PortStatusCallbacks_2_2;
-using AudioConfig_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration;
-
-class HidlToAidlMiddleware_2_2 {
- public:
-  static bool IsSessionReady(const SessionType_2_1& session_type);
-
-  static uint16_t RegisterControlResultCback(
-      const SessionType_2_1& session_type,
-      const PortStatusCallbacks_2_2& cbacks);
-
-  static void UnregisterControlResultCback(const SessionType_2_1& session_type,
-                                           uint16_t cookie);
-
-  static const AudioConfig_2_2 GetAudioConfig(
-      const SessionType_2_1& session_type);
-
-  static bool StartStream(const SessionType_2_1& session_type);
-
-  static bool SuspendStream(const SessionType_2_1& session_type);
-
-  static void StopStream(const SessionType_2_1& session_type);
-
-  static void UpdateTracksMetadata(
-      const SessionType_2_1& session_type,
-      const struct source_metadata* source_metadata);
-
-  static void UpdateSinkMetadata(const SessionType_2_1& session_type,
-                                 const struct sink_metadata* sink_metadata);
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
-}  // namespace aidl
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
deleted file mode 100644
index c270ef0..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * 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 "BluetoothAudioSession_2_2.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-class BluetoothAudioSessionControl_2_2 {
-  using SessionType_2_1 =
-      ::android::hardware::bluetooth::audio::V2_1::SessionType;
-  using AudioConfiguration_2_2 =
-      ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration;
-
- public:
-  // The control API helps to check if session is ready or not
-  // @return: true if the Bluetooth stack has started th specified session
-  static bool IsSessionReady(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->IsSessionReady();
-    }
-    return false;
-  }
-
-  // The control API helps the bluetooth_audio module to register
-  // PortStatusCallbacks
-  // @return: cookie - the assigned number to this bluetooth_audio output
-  static uint16_t RegisterControlResultCback(
-      const SessionType_2_1& session_type, const PortStatusCallbacks& cbacks) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      PortStatusCallbacks_2_2 cb = {
-          .control_result_cb_ = cbacks.control_result_cb_,
-          .session_changed_cb_ = cbacks.session_changed_cb_,
-          .audio_configuration_changed_cb_ = nullptr};
-      return session_ptr->RegisterStatusCback(cb);
-    }
-    return kObserversCookieUndefined;
-  }
-
-  // The control API helps the bluetooth_audio module to register
-  // PortStatusCallbacks_2_2
-  // @return: cookie - the assigned number to this bluetooth_audio output
-  static uint16_t RegisterControlResultCback(
-      const SessionType_2_1& session_type,
-      const PortStatusCallbacks_2_2& cbacks) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->RegisterStatusCback(cbacks);
-    }
-    return kObserversCookieUndefined;
-  }
-
-  // The control API helps the bluetooth_audio module to unregister
-  // PortStatusCallbacks and PortStatusCallbacks_2_2
-  // @param: cookie - indicates which bluetooth_audio output is
-  static void UnregisterControlResultCback(const SessionType_2_1& session_type,
-                                           uint16_t cookie) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->UnregisterStatusCback(cookie);
-    }
-  }
-
-  // The control API for the bluetooth_audio module to get current
-  // AudioConfiguration
-  static const AudioConfiguration_2_2 GetAudioConfig(
-      const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioConfig();
-    } else if (session_type ==
-               SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-      return BluetoothAudioSession_2_2::kInvalidOffloadAudioConfiguration;
-    } else if (
-        session_type ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-        session_type ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-      return BluetoothAudioSession_2_2::kInvalidLeOffloadAudioConfiguration;
-    } else {
-      return BluetoothAudioSession_2_2::kInvalidSoftwareAudioConfiguration;
-    }
-  }
-
-  // Those control APIs for the bluetooth_audio module to start / suspend / stop
-  // stream, to check position, and to update metadata.
-  static bool StartStream(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->StartStream();
-    }
-    return false;
-  }
-
-  static bool SuspendStream(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->SuspendStream();
-    }
-    return false;
-  }
-
-  static void StopStream(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->StopStream();
-    }
-  }
-
-  static bool GetPresentationPosition(const SessionType_2_1& session_type,
-                                      uint64_t* remote_delay_report_ns,
-                                      uint64_t* total_bytes_readed,
-                                      timespec* data_position) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->GetPresentationPosition(
-          remote_delay_report_ns, total_bytes_readed, data_position);
-    }
-    return false;
-  }
-
-  static void UpdateTracksMetadata(
-      const SessionType_2_1& session_type,
-      const struct source_metadata* source_metadata) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->UpdateTracksMetadata(source_metadata);
-    }
-  }
-
-  static void UpdateSinkMetadata(const SessionType_2_1& session_type,
-                                 const struct sink_metadata* sink_metadata) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->UpdateSinkMetadata(sink_metadata);
-    }
-  }
-
-  // The control API writes stream to FMQ
-  static size_t OutWritePcmData(const SessionType_2_1& session_type,
-                                const void* buffer, size_t bytes) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->OutWritePcmData(buffer, bytes);
-    }
-    return 0;
-  }
-
-  // The control API reads stream from FMQ
-  static size_t InReadPcmData(const SessionType_2_1& session_type, void* buffer,
-                              size_t bytes) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->InReadPcmData(buffer, bytes);
-    }
-    return 0;
-  }
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSessionReport_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSessionReport_2_2.h
deleted file mode 100644
index 17e140e..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSessionReport_2_2.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BluetoothAudioSession_2_2.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-class BluetoothAudioSessionReport_2_2 {
- public:
-  // The API reports the Bluetooth stack has started the session, and will
-  // inform registered bluetooth_audio outputs
-  static void OnSessionStarted(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type,
-      const sp<IBluetoothAudioPort> host_iface,
-      const DataMQ::Descriptor* dataMQ,
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->OnSessionStarted(host_iface, dataMQ, audio_config);
-    }
-  }
-
-  // The API reports the Bluetooth stack has ended the session, and will
-  // inform registered bluetooth_audio outputs
-  static void OnSessionEnded(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->OnSessionEnded();
-    }
-  }
-  // The API reports the Bluetooth stack has replied the result of startStream
-  // or suspendStream, and will inform registered bluetooth_audio outputs
-  static void ReportControlStatus(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type,
-      const bool& start_resp, const BluetoothAudioStatus& status) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->ReportControlStatus(start_resp, status);
-    }
-  }
-  // The API reports the Bluetooth stack has replied the changed of the audio
-  // configuration, and will inform registered bluetooth_audio outputs
-  static void ReportAudioConfigChanged(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type,
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->ReportAudioConfigChanged(audio_config);
-    }
-  }
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
deleted file mode 100644
index ceb0662..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- * 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 "BTAudioProviderSession_2_2"
-
-#include "BluetoothAudioSession_2_2.h"
-
-#include <android-base/logging.h>
-#include <android-base/stringprintf.h>
-#include <android/hardware/bluetooth/audio/2.2/IBluetoothAudioPort.h>
-
-#include "../aidl_session/HidlToAidlMiddleware_2_0.h"
-#include "../aidl_session/HidlToAidlMiddleware_2_2.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-using ::aidl::android::hardware::bluetooth::audio::HidlToAidlMiddleware_2_0;
-using ::aidl::android::hardware::bluetooth::audio::HidlToAidlMiddleware_2_2;
-using ::android::hardware::audio::common::V5_0::AudioContentType;
-using ::android::hardware::audio::common::V5_0::AudioSource;
-using ::android::hardware::audio::common::V5_0::AudioUsage;
-using ::android::hardware::audio::common::V5_0::PlaybackTrackMetadata;
-using ::android::hardware::audio::common::V5_0::RecordTrackMetadata;
-using ::android::hardware::audio::common::V5_0::SinkMetadata;
-using ::android::hardware::audio::common::V5_0::SourceMetadata;
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
-using ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration;
-using ::android::hardware::bluetooth::audio::V2_2::LeAudioMode;
-using PcmParameters_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::PcmParameters;
-using SampleRate_2_1 = ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-
-using SessionType_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::SessionType;
-using SessionType_2_0 =
-    ::android::hardware::bluetooth::audio::V2_0::SessionType;
-
-using AudioConfiguration_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::AudioConfiguration;
-
-static constexpr PcmParameters_2_1 kInvalidPcmParameters = {
-    .sampleRate = SampleRate_2_1::RATE_UNKNOWN,
-    .channelMode = ChannelMode::UNKNOWN,
-    .bitsPerSample = BitsPerSample::BITS_UNKNOWN,
-    .dataIntervalUs = 0,
-};
-
-static LeAudioConfiguration kInvalidLeAudioConfig = {
-    .mode = LeAudioMode::UNKNOWN,
-    .config = {},
-};
-
-::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-    BluetoothAudioSession_2_2::invalidSoftwareAudioConfiguration = {};
-::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-    BluetoothAudioSession_2_2::invalidOffloadAudioConfiguration = {};
-::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-    BluetoothAudioSession_2_2::invalidLeOffloadAudioConfiguration = {};
-
-using IBluetoothAudioPort_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::IBluetoothAudioPort;
-
-namespace {
-bool is_2_0_session_type(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type) {
-  if (session_type == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-      session_type == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH ||
-      session_type == SessionType_2_1::HEARING_AID_SOFTWARE_ENCODING_DATAPATH) {
-    return true;
-  } else {
-    return false;
-  }
-}
-}  // namespace
-
-BluetoothAudioSession_2_2::BluetoothAudioSession_2_2(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type)
-    : audio_session(BluetoothAudioSessionInstance::GetSessionInstance(
-          static_cast<SessionType_2_0>(session_type))),
-      audio_session_2_1(
-          BluetoothAudioSessionInstance_2_1::GetSessionInstance(session_type)) {
-  if (is_2_0_session_type(session_type)) {
-    session_type_2_1_ = (SessionType_2_1::UNKNOWN);
-  } else {
-    session_type_2_1_ = (session_type);
-  }
-  raw_session_type_ = session_type;
-  invalidSoftwareAudioConfiguration.pcmConfig(kInvalidPcmParameters);
-  invalidOffloadAudioConfiguration.codecConfig(
-      audio_session->kInvalidCodecConfiguration);
-  invalidLeOffloadAudioConfiguration.leAudioConfig(kInvalidLeAudioConfig);
-}
-
-bool BluetoothAudioSession_2_2::IsSessionReady() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::IsSessionReady(raw_session_type_);
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return audio_session->IsSessionReady();
-  }
-
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  return audio_session->stack_iface_ != nullptr;
-}
-
-std::shared_ptr<BluetoothAudioSession>
-BluetoothAudioSession_2_2::GetAudioSession() {
-  return audio_session;
-}
-std::shared_ptr<BluetoothAudioSession_2_1>
-BluetoothAudioSession_2_2::GetAudioSession_2_1() {
-  return audio_session_2_1;
-}
-
-void BluetoothAudioSession_2_2::UpdateTracksMetadata(
-    const struct source_metadata* source_metadata) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::UpdateTracksMetadata(raw_session_type_,
-                                                          source_metadata);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return;
-  }
-
-  ssize_t track_count = source_metadata->track_count;
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-            << ", " << track_count << " track(s)";
-
-  if (session_type_2_1_ == SessionType_2_1::UNKNOWN) {
-    audio_session->UpdateTracksMetadata(source_metadata);
-    return;
-  }
-
-  struct playback_track_metadata* track = source_metadata->tracks;
-  SourceMetadata sourceMetadata;
-  PlaybackTrackMetadata* halMetadata;
-
-  sourceMetadata.tracks.resize(track_count);
-  halMetadata = sourceMetadata.tracks.data();
-  while (track_count && track) {
-    halMetadata->usage = static_cast<AudioUsage>(track->usage);
-    halMetadata->contentType =
-        static_cast<AudioContentType>(track->content_type);
-    halMetadata->gain = track->gain;
-    LOG(VERBOSE) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << ", usage=" << toString(halMetadata->usage)
-                 << ", content=" << toString(halMetadata->contentType)
-                 << ", gain=" << halMetadata->gain;
-    --track_count;
-    ++track;
-    ++halMetadata;
-  }
-  auto hal_retval = audio_session->stack_iface_->updateMetadata(sourceMetadata);
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-  }
-}
-
-void BluetoothAudioSession_2_2::UpdateSinkMetadata(
-    const struct sink_metadata* sink_metadata) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::UpdateSinkMetadata(raw_session_type_,
-                                                        sink_metadata);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return;
-  }
-
-  ssize_t track_count = sink_metadata->track_count;
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-            << ", " << track_count << " track(s)";
-  if (session_type_2_1_ == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-      session_type_2_1_ == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    return;
-  }
-
-  struct record_track_metadata* track = sink_metadata->tracks;
-  SinkMetadata sinkMetadata;
-  RecordTrackMetadata* halMetadata;
-
-  sinkMetadata.tracks.resize(track_count);
-  halMetadata = sinkMetadata.tracks.data();
-  while (track_count && track) {
-    halMetadata->source = static_cast<AudioSource>(track->source);
-    halMetadata->gain = track->gain;
-    // halMetadata->destination leave unspecified
-    LOG(INFO) << __func__
-              << " - SessionType=" << toString(GetAudioSession()->session_type_)
-              << ", source=" << track->source
-              << ", dest_device=" << track->dest_device
-              << ", gain=" << track->gain
-              << ", dest_device_address=" << track->dest_device_address;
-    --track_count;
-    ++track;
-    ++halMetadata;
-  }
-
-  /* This is called just for 2.2 sessions, so it's safe to do this casting*/
-  IBluetoothAudioPort_2_2* stack_iface_2_2_ =
-      static_cast<IBluetoothAudioPort_2_2*>(audio_session->stack_iface_.get());
-  auto hal_retval = stack_iface_2_2_->updateSinkMetadata(sinkMetadata);
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-  }
-}
-
-// The control function is for the bluetooth_audio module to get the current
-// AudioConfiguration
-const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-BluetoothAudioSession_2_2::GetAudioConfig() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::GetAudioConfig(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (IsSessionReady()) {
-    auto audio_config_discriminator = audio_config_2_2_.getDiscriminator();
-    // If session is unknown it means it should be 2.0 type
-    if (session_type_2_1_ != SessionType_2_1::UNKNOWN) {
-      if ((audio_config_discriminator ==
-               ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-                   hidl_discriminator::pcmConfig &&
-           audio_config_2_2_ != kInvalidSoftwareAudioConfiguration) ||
-          (audio_config_discriminator ==
-               ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-                   hidl_discriminator::leAudioConfig &&
-           audio_config_2_2_ != kInvalidLeOffloadAudioConfiguration))
-        return audio_config_2_2_;
-
-      ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration toConf;
-      const AudioConfiguration_2_1 fromConf =
-          GetAudioSession_2_1()->GetAudioConfig();
-      if (fromConf.getDiscriminator() ==
-          AudioConfiguration_2_1::hidl_discriminator::pcmConfig) {
-        toConf.pcmConfig(fromConf.pcmConfig());
-        return toConf;
-      }
-    }
-
-    ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration toConf;
-    const AudioConfiguration fromConf = GetAudioSession()->GetAudioConfig();
-    // pcmConfig only differs between 2.0 and 2.1 in AudioConfiguration
-    if (fromConf.getDiscriminator() ==
-        AudioConfiguration::hidl_discriminator::codecConfig) {
-      toConf.codecConfig(fromConf.codecConfig());
-    } else {
-      toConf.pcmConfig() = {
-          .sampleRate = static_cast<
-              ::android::hardware::bluetooth::audio::V2_1::SampleRate>(
-              fromConf.pcmConfig().sampleRate),
-          .channelMode = fromConf.pcmConfig().channelMode,
-          .bitsPerSample = fromConf.pcmConfig().bitsPerSample,
-          .dataIntervalUs = 0};
-    }
-    return toConf;
-  } else if (session_type_2_1_ ==
-                 SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-             session_type_2_1_ ==
-                 SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return kInvalidLeOffloadAudioConfiguration;
-  } else {
-    return kInvalidSoftwareAudioConfiguration;
-  }
-}
-
-// Those control functions are for the bluetooth_audio module to start, suspend,
-// stop stream, to check position, and to update metadata.
-bool BluetoothAudioSession_2_2::StartStream() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::StartStream(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return false;
-  }
-  auto hal_retval = audio_session->stack_iface_->startStream();
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-    return false;
-  }
-  return true;
-}
-
-bool BluetoothAudioSession_2_2::SuspendStream() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::SuspendStream(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return false;
-  }
-  auto hal_retval = audio_session->stack_iface_->suspendStream();
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-    return false;
-  }
-  return true;
-}
-
-void BluetoothAudioSession_2_2::StopStream() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::StopStream(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    return;
-  }
-  auto hal_retval = audio_session->stack_iface_->stopStream();
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-  }
-}
-
-bool BluetoothAudioSession_2_2::UpdateAudioConfig(
-    const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-        audio_config) {
-  bool is_software_session =
-      (session_type_2_1_ == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::HEARING_AID_SOFTWARE_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_SOFTWARE_DECODED_DATAPATH);
-  bool is_offload_a2dp_session =
-      (session_type_2_1_ == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH);
-  bool is_offload_le_audio_session =
-      (session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH);
-  auto audio_config_discriminator = audio_config.getDiscriminator();
-  bool is_software_audio_config =
-      (is_software_session &&
-       audio_config_discriminator ==
-           ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-               hidl_discriminator::pcmConfig);
-  bool is_a2dp_offload_audio_config =
-      (is_offload_a2dp_session &&
-       audio_config_discriminator ==
-           ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-               hidl_discriminator::codecConfig);
-  bool is_le_audio_offload_audio_config =
-      (is_offload_le_audio_session &&
-       audio_config_discriminator ==
-           ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-               hidl_discriminator::leAudioConfig);
-  if (!is_software_audio_config && !is_a2dp_offload_audio_config &&
-      !is_le_audio_offload_audio_config) {
-    return false;
-  }
-  audio_config_2_2_ = audio_config;
-  return true;
-}
-
-// The report function is used to report that the Bluetooth stack has started
-// this session without any failure, and will invoke session_changed_cb_ to
-// notify those registered bluetooth_audio outputs
-void BluetoothAudioSession_2_2::OnSessionStarted(
-    const sp<IBluetoothAudioPort> stack_iface, const DataMQ::Descriptor* dataMQ,
-    const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-        audio_config) {
-  if (session_type_2_1_ == SessionType_2_1::UNKNOWN) {
-    ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration config;
-    if (audio_config.getDiscriminator() ==
-        ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-            hidl_discriminator::codecConfig) {
-      config.codecConfig(audio_config.codecConfig());
-    } else {
-      auto& tmpPcm = audio_config.pcmConfig();
-      config.pcmConfig(
-          ::android::hardware::bluetooth::audio::V2_0::PcmParameters{
-              .sampleRate = static_cast<SampleRate>(tmpPcm.sampleRate),
-              .channelMode = tmpPcm.channelMode,
-              .bitsPerSample = tmpPcm.bitsPerSample
-              /*dataIntervalUs is not passed to 2.0 */
-          });
-    }
-
-    audio_session->OnSessionStarted(stack_iface, dataMQ, config);
-  } else {
-    std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-    if (stack_iface == nullptr) {
-      LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << ", IBluetoothAudioPort Invalid";
-    } else if (!UpdateAudioConfig(audio_config)) {
-      LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << ", AudioConfiguration=" << toString(audio_config)
-                 << " Invalid";
-    } else if (!audio_session->UpdateDataPath(dataMQ)) {
-      LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " DataMQ Invalid";
-      audio_config_2_2_ =
-          ((session_type_2_1_ ==
-                SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-            session_type_2_1_ ==
-                SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH)
-               ? kInvalidLeOffloadAudioConfiguration
-               : kInvalidSoftwareAudioConfiguration);
-    } else {
-      audio_session->stack_iface_ = stack_iface;
-      LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                << ", AudioConfiguration=" << toString(audio_config);
-      ReportSessionStatus();
-    };
-  }
-}
-
-// The report function is used to report that the Bluetooth stack has ended the
-// session, and will invoke session_changed_cb_ to notify registered
-// bluetooth_audio outputs
-void BluetoothAudioSession_2_2::OnSessionEnded() {
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  bool toggled = IsSessionReady();
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_);
-  if (session_type_2_1_ == SessionType_2_1::UNKNOWN) {
-    audio_session->OnSessionEnded();
-    return;
-  }
-
-  audio_config_2_2_ =
-      ((session_type_2_1_ ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-        session_type_2_1_ ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH)
-           ? kInvalidLeOffloadAudioConfiguration
-           : kInvalidSoftwareAudioConfiguration);
-  audio_session->stack_iface_ = nullptr;
-  audio_session->UpdateDataPath(nullptr);
-  if (toggled) {
-    ReportSessionStatus();
-  }
-}
-
-// The control function helps the bluetooth_audio module to register
-// PortStatusCallbacks_2_2
-// @return: cookie - the assigned number to this bluetooth_audio output
-uint16_t BluetoothAudioSession_2_2::RegisterStatusCback(
-    const PortStatusCallbacks_2_2& cbacks) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::RegisterControlResultCback(
-        raw_session_type_, cbacks);
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    PortStatusCallbacks cb = {
-        .control_result_cb_ = cbacks.control_result_cb_,
-        .session_changed_cb_ = cbacks.session_changed_cb_};
-    return audio_session->RegisterStatusCback(cb);
-  }
-
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  uint16_t cookie = ObserversCookieGetInitValue(session_type_2_1_);
-  uint16_t cookie_upper_bound = ObserversCookieGetUpperBound(session_type_2_1_);
-
-  while (cookie < cookie_upper_bound) {
-    if (observers_.find(cookie) == observers_.end()) {
-      break;
-    }
-    ++cookie;
-  }
-  if (cookie >= cookie_upper_bound) {
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has " << observers_.size()
-               << " observers already (No Resource)";
-    return kObserversCookieUndefined;
-  }
-  std::shared_ptr<struct PortStatusCallbacks_2_2> cb =
-      std::make_shared<struct PortStatusCallbacks_2_2>();
-  *cb = cbacks;
-  observers_[cookie] = cb;
-  return cookie;
-}
-
-// The control function helps the bluetooth_audio module to unregister
-// PortStatusCallbacks_2_2
-// @param: cookie - indicates which bluetooth_audio output is
-void BluetoothAudioSession_2_2::UnregisterStatusCback(uint16_t cookie) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::UnregisterControlResultCback(
-        raw_session_type_, cookie);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    audio_session->UnregisterStatusCback(cookie);
-    return;
-  }
-  if (observers_.erase(cookie) != 1) {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " no such provider=0x"
-                 << android::base::StringPrintf("%04x", cookie);
-  }
-}
-
-// invoking the registered session_changed_cb_
-void BluetoothAudioSession_2_2::ReportSessionStatus() {
-  // This is locked already by OnSessionStarted / OnSessionEnded
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    audio_session->ReportSessionStatus();
-    return;
-  }
-  if (observers_.empty()) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-              << " has NO port state observer";
-    return;
-  }
-  for (auto& observer : observers_) {
-    uint16_t cookie = observer.first;
-    std::shared_ptr<struct PortStatusCallbacks_2_2> cb = observer.second;
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-              << " notify to bluetooth_audio=0x"
-              << android::base::StringPrintf("%04x", cookie);
-    cb->session_changed_cb_(cookie);
-  }
-}
-
-// The report function is used to report that the Bluetooth stack has notified
-// the result of startStream or suspendStream, and will invoke
-// control_result_cb_ to notify registered bluetooth_audio outputs
-void BluetoothAudioSession_2_2::ReportControlStatus(
-    bool start_resp, const BluetoothAudioStatus& status) {
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    audio_session->ReportControlStatus(start_resp, status);
-    return;
-  }
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (observers_.empty()) {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " has NO port state observer";
-    return;
-  }
-  for (auto& observer : observers_) {
-    uint16_t cookie = observer.first;
-    std::shared_ptr<struct PortStatusCallbacks_2_2> cb = observer.second;
-    LOG(INFO) << __func__ << " - status=" << toString(status)
-              << " for SessionType=" << toString(session_type_2_1_)
-              << ", bluetooth_audio=0x"
-              << android::base::StringPrintf("%04x", cookie)
-              << (start_resp ? " started" : " suspended");
-    cb->control_result_cb_(cookie, start_resp, status);
-  }
-}
-
-// The report function is used to report that the Bluetooth stack has notified
-// the result of startStream or suspendStream, and will invoke
-// control_result_cb_ to notify registered bluetooth_audio outputs
-void BluetoothAudioSession_2_2::ReportAudioConfigChanged(
-    const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-        audio_config) {
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return;
-  }
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  audio_config_2_2_ = audio_config;
-  if (observers_.empty()) {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " has NO port state observer";
-    return;
-  }
-  for (auto& observer : observers_) {
-    uint16_t cookie = observer.first;
-    std::shared_ptr<struct PortStatusCallbacks_2_2> cb = observer.second;
-    LOG(INFO) << __func__ << " for SessionType=" << toString(session_type_2_1_)
-              << ", bluetooth_audio=0x"
-              << android::base::StringPrintf("%04x", cookie);
-    if (cb->audio_configuration_changed_cb_ != nullptr) {
-      cb->audio_configuration_changed_cb_(cookie);
-    }
-  }
-}
-
-std::unique_ptr<BluetoothAudioSessionInstance_2_2>
-    BluetoothAudioSessionInstance_2_2::instance_ptr =
-        std::unique_ptr<BluetoothAudioSessionInstance_2_2>(
-            new BluetoothAudioSessionInstance_2_2());
-
-// API to fetch the session of A2DP / Hearing Aid
-std::shared_ptr<BluetoothAudioSession_2_2>
-BluetoothAudioSessionInstance_2_2::GetSessionInstance(
-    const SessionType_2_1& session_type) {
-  std::lock_guard<std::mutex> guard(instance_ptr->mutex_);
-  if (!instance_ptr->sessions_map_.empty()) {
-    auto entry = instance_ptr->sessions_map_.find(session_type);
-    if (entry != instance_ptr->sessions_map_.end()) {
-      return entry->second;
-    }
-  }
-  std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-      std::make_shared<BluetoothAudioSession_2_2>(session_type);
-  instance_ptr->sessions_map_[session_type] = session_ptr;
-  return session_ptr;
-}
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
deleted file mode 100644
index e04ad80..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * 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 <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include <mutex>
-#include <unordered_map>
-
-#include "BluetoothAudioSession.h"
-#include "BluetoothAudioSession_2_1.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-inline uint16_t ObserversCookieGetInitValue(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type) {
-  return (static_cast<uint16_t>(session_type) << 8 & 0xff00);
-}
-inline uint16_t ObserversCookieGetUpperBound(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type) {
-  return (static_cast<uint16_t>(session_type) << 8 & 0xff00) +
-         kObserversCookieSize;
-}
-
-struct PortStatusCallbacks_2_2 {
-  // control_result_cb_ - when the Bluetooth stack reports results of
-  // streamStarted or streamSuspended, the BluetoothAudioProvider will invoke
-  // this callback to report to the bluetooth_audio module.
-  // @param: cookie - indicates which bluetooth_audio output should handle
-  // @param: start_resp - this report is for startStream or not
-  // @param: status - the result of startStream
-  std::function<void(uint16_t cookie, bool start_resp,
-                     const BluetoothAudioStatus& status)>
-      control_result_cb_;
-  // session_changed_cb_ - when the Bluetooth stack start / end session, the
-  // BluetoothAudioProvider will invoke this callback to notify to the
-  // bluetooth_audio module.
-  // @param: cookie - indicates which bluetooth_audio output should handle
-  std::function<void(uint16_t cookie)> session_changed_cb_;
-  // audio_configuration_changed_cb_ - when the Bluetooth stack change the audio
-  // configuration, the BluetoothAudioProvider will invoke this callback to
-  // notify to the bluetooth_audio module.
-  // @param: cookie - indicates which bluetooth_audio output should handle
-  std::function<void(uint16_t cookie)> audio_configuration_changed_cb_;
-};
-
-class BluetoothAudioSession_2_2 {
- private:
-  std::shared_ptr<BluetoothAudioSession> audio_session;
-  std::shared_ptr<BluetoothAudioSession_2_1> audio_session_2_1;
-
-  ::android::hardware::bluetooth::audio::V2_1::SessionType session_type_2_1_;
-  ::android::hardware::bluetooth::audio::V2_1::SessionType raw_session_type_;
-
-  // audio data configuration for both software and offloading
-  ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      audio_config_2_2_;
-
-  bool UpdateAudioConfig(
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config);
-
-  static ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      invalidSoftwareAudioConfiguration;
-  static ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      invalidOffloadAudioConfiguration;
-  static ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      invalidLeOffloadAudioConfiguration;
-
-  // saving those registered bluetooth_audio's callbacks
-  std::unordered_map<uint16_t, std::shared_ptr<struct PortStatusCallbacks_2_2>>
-      observers_;
-
-  // invoking the registered session_changed_cb_
-  void ReportSessionStatus();
-
- public:
-  BluetoothAudioSession_2_2(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type);
-
-  // The function helps to check if this session is ready or not
-  // @return: true if the Bluetooth stack has started the specified session
-  bool IsSessionReady();
-
-  std::shared_ptr<BluetoothAudioSession> GetAudioSession();
-  std::shared_ptr<BluetoothAudioSession_2_1> GetAudioSession_2_1();
-
-  // The report function is used to report that the Bluetooth stack has started
-  // this session without any failure, and will invoke session_changed_cb_ to
-  // notify those registered bluetooth_audio outputs
-  void OnSessionStarted(
-      const sp<IBluetoothAudioPort> stack_iface,
-      const DataMQ::Descriptor* dataMQ,
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config);
-
-  // The report function is used to report that the Bluetooth stack has ended
-  // the session, and will invoke session_changed_cb_ to notify registered
-  // bluetooth_audio outputs
-  void OnSessionEnded();
-
-  // Those control functions are for the bluetooth_audio module to start,
-  // suspend, stop stream, to check position, and to update metadata.
-  bool StartStream();
-  bool SuspendStream();
-  void StopStream();
-
-  // The control function helps the bluetooth_audio module to register
-  // PortStatusCallbacks_2_2
-  // @return: cookie - the assigned number to this bluetooth_audio output
-  uint16_t RegisterStatusCback(const PortStatusCallbacks_2_2& cbacks);
-
-  // The control function helps the bluetooth_audio module to unregister
-  // PortStatusCallbacks_2_2
-  // @param: cookie - indicates which bluetooth_audio output is
-  void UnregisterStatusCback(uint16_t cookie);
-
-  // The report function is used to report that the Bluetooth stack has notified
-  // the result of startStream or suspendStream, and will invoke
-  // control_result_cb_ to notify registered bluetooth_audio outputs
-  void ReportControlStatus(bool start_resp, const BluetoothAudioStatus& status);
-
-  // The report function is used to report that the Bluetooth stack has notified
-  // the audio configuration changed, and will invoke
-  // audio_configuration_changed_cb_ to notify registered bluetooth_audio
-  // outputs
-  void ReportAudioConfigChanged(
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config);
-
-  // The control function is for the bluetooth_audio module to get the current
-  // AudioConfiguration
-  const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-  GetAudioConfig();
-
-  void UpdateTracksMetadata(const struct source_metadata* source_metadata);
-  void UpdateSinkMetadata(const struct sink_metadata* sink_metadata);
-
-  static constexpr ::android::hardware::bluetooth::audio::V2_2::
-      AudioConfiguration& kInvalidSoftwareAudioConfiguration =
-          invalidSoftwareAudioConfiguration;
-  static constexpr ::android::hardware::bluetooth::audio::V2_2::
-      AudioConfiguration& kInvalidOffloadAudioConfiguration =
-          invalidOffloadAudioConfiguration;
-  static constexpr ::android::hardware::bluetooth::audio::V2_2::
-      AudioConfiguration& kInvalidLeOffloadAudioConfiguration =
-          invalidLeOffloadAudioConfiguration;
-};
-
-class BluetoothAudioSessionInstance_2_2 {
- public:
-  // The API is to fetch the specified session of A2DP / Hearing Aid
-  static std::shared_ptr<BluetoothAudioSession_2_2> GetSessionInstance(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type);
-
- private:
-  static std::unique_ptr<BluetoothAudioSessionInstance_2_2> instance_ptr;
-  std::mutex mutex_;
-  std::unordered_map<::android::hardware::bluetooth::audio::V2_1::SessionType,
-                     std::shared_ptr<BluetoothAudioSession_2_2>>
-      sessions_map_;
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp b/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp
deleted file mode 100644
index 4c99b0f..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 "BTAudioProviderSessionCodecsDB_2_2"
-
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-#include <android-base/logging.h>
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_1::CodecType;
-using ::android::hardware::bluetooth::audio::V2_1::Lc3FrameDuration;
-using ::android::hardware::bluetooth::audio::V2_1::Lc3Parameters;
-using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-using ::android::hardware::bluetooth::audio::V2_2::AudioLocation;
-using ::android::hardware::bluetooth::audio::V2_2::BroadcastCapability;
-using ::android::hardware::bluetooth::audio::V2_2::
-    LeAudioCodecCapabilitiesSetting;
-using ::android::hardware::bluetooth::audio::V2_2::UnicastCapability;
-using SessionType_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::SessionType;
-
-// Stores the list of offload supported capability
-std::vector<LeAudioCodecCapabilitiesSetting> kDefaultOffloadLeAudioCapabilities;
-
-static const UnicastCapability kInvalidUnicastCapability = {
-    .codecType = CodecType::UNKNOWN};
-
-static const BroadcastCapability kInvalidBroadcastCapability = {
-    .codecType = CodecType::UNKNOWN};
-
-// Default Supported Codecs
-// LC3 16_1: sample rate: 16 kHz, frame duration: 7.5 ms, octets per frame: 30
-static const Lc3Parameters kLc3Capability_16_1 = {
-    .samplingFrequency = SampleRate::RATE_16000,
-    .frameDuration = Lc3FrameDuration::DURATION_7500US,
-    .octetsPerFrame = 30};
-
-// Default Supported Codecs
-// LC3 16_2: sample rate: 16 kHz, frame duration: 10 ms, octets per frame: 40
-static const Lc3Parameters kLc3Capability_16_2 = {
-    .samplingFrequency = SampleRate::RATE_16000,
-    .frameDuration = Lc3FrameDuration::DURATION_10000US,
-    .octetsPerFrame = 40};
-
-// Default Supported Codecs
-// LC3 48_4: sample rate: 48 kHz, frame duration: 10 ms, octets per frame: 120
-static const Lc3Parameters kLc3Capability_48_4 = {
-    .samplingFrequency = SampleRate::RATE_48000,
-    .frameDuration = Lc3FrameDuration::DURATION_10000US,
-    .octetsPerFrame = 120};
-
-static const std::vector<Lc3Parameters> supportedLc3CapabilityList = {
-    kLc3Capability_48_4, kLc3Capability_16_2, kLc3Capability_16_1};
-
-static AudioLocation stereoAudio = static_cast<AudioLocation>(
-    AudioLocation::FRONT_LEFT | AudioLocation::FRONT_RIGHT);
-static AudioLocation monoAudio = AudioLocation::UNKNOWN;
-
-// Stores the supported setting of audio location, connected device, and the
-// channel count for each device
-std::vector<std::tuple<AudioLocation, uint8_t, uint8_t>>
-    supportedDeviceSetting = {std::make_tuple(stereoAudio, 2, 1),
-                              std::make_tuple(monoAudio, 1, 2),
-                              std::make_tuple(monoAudio, 1, 1)};
-
-bool IsOffloadLeAudioConfigurationValid(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type,
-    const ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration&) {
-  if (session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return false;
-  }
-
-  // TODO: perform checks on le_audio_codec_config once we know supported
-  // parameters
-
-  return true;
-}
-
-UnicastCapability composeUnicastLc3Capability(AudioLocation audioLocation,
-                                              uint8_t deviceCnt,
-                                              uint8_t channelCount,
-                                              Lc3Parameters capability) {
-  return UnicastCapability{.codecType = CodecType::LC3,
-                           .supportedChannel = audioLocation,
-                           .deviceCount = deviceCnt,
-                           .channelCountPerDevice = channelCount,
-                           .capabilities = capability};
-}
-
-std::vector<LeAudioCodecCapabilitiesSetting> GetLeAudioOffloadCodecCapabilities(
-    const SessionType_2_1& session_type) {
-  if (session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return std::vector<LeAudioCodecCapabilitiesSetting>(0);
-  }
-
-  if (kDefaultOffloadLeAudioCapabilities.empty()) {
-    for (auto [audioLocation, deviceCnt, channelCount] :
-         supportedDeviceSetting) {
-      for (auto capability : supportedLc3CapabilityList) {
-        UnicastCapability lc3Capability = composeUnicastLc3Capability(
-            audioLocation, deviceCnt, channelCount, capability);
-        UnicastCapability lc3MonoDecodeCapability =
-            composeUnicastLc3Capability(monoAudio, 1, 1, capability);
-
-        // Adds the capability for encode only
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = lc3Capability,
-             .unicastDecodeCapability = kInvalidUnicastCapability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-
-        // Adds the capability for decode only
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = kInvalidUnicastCapability,
-             .unicastDecodeCapability = lc3Capability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-
-        // Adds the capability for the case that encode and decode exist at the
-        // same time
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = lc3Capability,
-             .unicastDecodeCapability = lc3MonoDecodeCapability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-      }
-    }
-  }
-
-  return kDefaultOffloadLeAudioCapabilities;
-}
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
deleted file mode 100644
index 34bba5f..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include "BluetoothAudioSupportedCodecsDB.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-bool IsOffloadLeAudioConfigurationValid(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type,
-    const ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration&
-        le_audio_codec_config);
-
-std::vector<hardware::bluetooth::audio::V2_2::LeAudioCodecCapabilitiesSetting>
-GetLeAudioOffloadCodecCapabilities(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type);
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/broadcastradio/1.1/vts/functional/Android.bp b/broadcastradio/1.1/vts/functional/Android.bp
index f0dfe96..0fb4eb0 100644
--- a/broadcastradio/1.1/vts/functional/Android.bp
+++ b/broadcastradio/1.1/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalBroadcastradioV1_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalBroadcastradioV1_1TargetTest.cpp"],
     srcs: ["VtsHalBroadcastradioV1_1TargetTest.cpp"],
     static_libs: [
         "android.hardware.broadcastradio@1.0",
diff --git a/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc b/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc
index dd8c9c6..d58ba53 100644
--- a/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc
+++ b/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc
@@ -1,5 +1,6 @@
 service broadcastradio-hal2 /vendor/bin/hw/android.hardware.broadcastradio@2.0-service
-    interface android.hardware.broadcastradio@2.0::IBroadcastRadio default
+    interface android.hardware.broadcastradio@2.0::IBroadcastRadio amfm
+    interface android.hardware.broadcastradio@2.0::IBroadcastRadio dab
     class hal
     user audioserver
     group audio
diff --git a/broadcastradio/2.0/vts/functional/Android.bp b/broadcastradio/2.0/vts/functional/Android.bp
index e26486d..cb50c5e 100644
--- a/broadcastradio/2.0/vts/functional/Android.bp
+++ b/broadcastradio/2.0/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalBroadcastradioV2_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalBroadcastradioV2_0TargetTest.cpp"],
     srcs: ["VtsHalBroadcastradioV2_0TargetTest.cpp"],
     static_libs: [
         "android.hardware.broadcastradio@2.0",
diff --git a/camera/provider/2.4/vts/functional/Android.bp b/camera/provider/2.4/vts/functional/Android.bp
index 8886ee1..d2f61a5 100644
--- a/camera/provider/2.4/vts/functional/Android.bp
+++ b/camera/provider/2.4/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalCameraProviderV2_4TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalCameraProviderV2_4TargetTest.cpp"],
     srcs: ["VtsHalCameraProviderV2_4TargetTest.cpp"],
 
     // TODO(b/64437680): Assume these are always available on the device.
diff --git a/common/aidl/Android.bp b/common/aidl/Android.bp
index 028c923..549d970 100644
--- a/common/aidl/Android.bp
+++ b/common/aidl/Android.bp
@@ -30,6 +30,7 @@
         ndk: {
             apex_available: [
                 "//apex_available:platform",
+                "com.android.bluetooth",
                 "com.android.media.swcodec",
                 "com.android.neuralnetworks",
             ],
diff --git a/common/fmq/aidl/Android.bp b/common/fmq/aidl/Android.bp
index 842a75f..6fd4200 100644
--- a/common/fmq/aidl/Android.bp
+++ b/common/fmq/aidl/Android.bp
@@ -29,6 +29,13 @@
         cpp: {
             enabled: false,
         },
+        ndk: {
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.bluetooth",
+            ],
+            min_sdk_version: "29",
+        },
     },
     versions: ["1"],
 }
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index f751efc..8c5a812 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -10,7 +10,7 @@
     <hal format="hidl" optional="false">
         <name>android.hardware.audio</name>
         <version>6.0</version>
-        <version>7.0</version>
+        <version>7.0-1</version>
         <interface>
             <name>IDevicesFactory</name>
             <instance>default</instance>
@@ -131,14 +131,6 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="hidl" optional="true">
-        <name>android.hardware.bluetooth.audio</name>
-        <version>2.0-2</version>
-        <interface>
-            <name>IBluetoothAudioProvidersFactory</name>
-            <instance>default</instance>
-        </interface>
-    </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.bluetooth.audio</name>
         <interface>
diff --git a/drm/1.0/vts/functional/Android.bp b/drm/1.0/vts/functional/Android.bp
index 5ea6ad3..8ca6a65 100644
--- a/drm/1.0/vts/functional/Android.bp
+++ b/drm/1.0/vts/functional/Android.bp
@@ -44,6 +44,10 @@
     local_include_dirs: [
         "include",
     ],
+    tidy_timeout_srcs: [
+        "drm_hal_clearkey_test.cpp",
+        "drm_hal_vendor_test.cpp",
+    ],
     srcs: [
         "drm_hal_clearkey_test.cpp",
         "drm_hal_vendor_test.cpp",
diff --git a/drm/1.1/vts/functional/Android.bp b/drm/1.1/vts/functional/Android.bp
index 656ec50..760b67e 100644
--- a/drm/1.1/vts/functional/Android.bp
+++ b/drm/1.1/vts/functional/Android.bp
@@ -32,6 +32,9 @@
     local_include_dirs: [
         "include",
     ],
+    tidy_timeout_srcs: [
+        "drm_hal_clearkey_test.cpp",
+    ],
     srcs: [
         "drm_hal_clearkey_test.cpp",
     ],
diff --git a/drm/1.2/vts/functional/Android.bp b/drm/1.2/vts/functional/Android.bp
index ca90ee9..dd22ebe 100644
--- a/drm/1.2/vts/functional/Android.bp
+++ b/drm/1.2/vts/functional/Android.bp
@@ -29,6 +29,9 @@
     local_include_dirs: [
         "include",
     ],
+    tidy_timeout_srcs: [
+        "drm_hal_test.cpp",
+    ],
     srcs: [
         "drm_hal_clearkey_module.cpp",
         "drm_hal_common.cpp",
diff --git a/drm/aidl/OWNERS b/drm/aidl/OWNERS
new file mode 100644
index 0000000..fa8fd20
--- /dev/null
+++ b/drm/aidl/OWNERS
@@ -0,0 +1,4 @@
+# Bug component: 49079
+edwinwong@google.com
+kelzhan@google.com
+robertshih@google.com
diff --git a/graphics/OWNERS b/graphics/OWNERS
new file mode 100644
index 0000000..75ceb23
--- /dev/null
+++ b/graphics/OWNERS
@@ -0,0 +1,9 @@
+# Bug component: 1075130
+
+# Graphics team
+adyabr@google.com
+alecmouri@google.com
+chrisforbes@google.com
+jreck@google.com
+lpy@google.com
+sumir@google.com
\ No newline at end of file
diff --git a/graphics/composer/2.1/vts/functional/Android.bp b/graphics/composer/2.1/vts/functional/Android.bp
index eb67d34..9ffd7d5 100644
--- a/graphics/composer/2.1/vts/functional/Android.bp
+++ b/graphics/composer/2.1/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalGraphicsComposerV2_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalGraphicsComposerV2_1TargetTest.cpp"],
     srcs: ["VtsHalGraphicsComposerV2_1TargetTest.cpp"],
 
     // TODO(b/64437680): Assume these libs are always available on the device.
diff --git a/graphics/composer/2.2/vts/functional/Android.bp b/graphics/composer/2.2/vts/functional/Android.bp
index 36f3c00..e45696d 100644
--- a/graphics/composer/2.2/vts/functional/Android.bp
+++ b/graphics/composer/2.2/vts/functional/Android.bp
@@ -30,6 +30,10 @@
         // Needed for librenderengine
         "skia_deps",
     ],
+    tidy_timeout_srcs: [
+        "VtsHalGraphicsComposerV2_2ReadbackTest.cpp",
+        "VtsHalGraphicsComposerV2_2TargetTest.cpp",
+    ],
     srcs: [
         "VtsHalGraphicsComposerV2_2ReadbackTest.cpp",
         "VtsHalGraphicsComposerV2_2TargetTest.cpp",
diff --git a/graphics/composer/2.3/vts/functional/Android.bp b/graphics/composer/2.3/vts/functional/Android.bp
index d27a151..70384ac 100644
--- a/graphics/composer/2.3/vts/functional/Android.bp
+++ b/graphics/composer/2.3/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalGraphicsComposerV2_3TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalGraphicsComposerV2_3TargetTest.cpp"],
     srcs: ["VtsHalGraphicsComposerV2_3TargetTest.cpp"],
 
     // TODO(b/64437680): Assume these libs are always available on the device.
diff --git a/graphics/composer/2.4/vts/functional/Android.bp b/graphics/composer/2.4/vts/functional/Android.bp
index 6089e2d..22ae7c4 100644
--- a/graphics/composer/2.4/vts/functional/Android.bp
+++ b/graphics/composer/2.4/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalGraphicsComposerV2_4TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalGraphicsComposerV2_4TargetTest.cpp"],
     srcs: ["VtsHalGraphicsComposerV2_4TargetTest.cpp"],
 
     // TODO(b/64437680): Assume these libs are always available on the device.
diff --git a/health/2.0/vts/functional/Android.bp b/health/2.0/vts/functional/Android.bp
index 0fcac19..597fb50 100644
--- a/health/2.0/vts/functional/Android.bp
+++ b/health/2.0/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalHealthV2_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalHealthV2_0TargetTest.cpp"],
     srcs: ["VtsHalHealthV2_0TargetTest.cpp"],
     static_libs: [
         "libgflags",
diff --git a/health/aidl/vts/functional/Android.bp b/health/aidl/vts/functional/Android.bp
index d315c60..f9da79f 100644
--- a/health/aidl/vts/functional/Android.bp
+++ b/health/aidl/vts/functional/Android.bp
@@ -29,6 +29,9 @@
         "VtsHalTargetTestDefaults",
         "use_libaidlvintf_gtest_helper_static",
     ],
+    tidy_timeout_srcs: [
+        "VtsHalHealthTargetTest.cpp",
+    ],
     srcs: [
         "VtsHalHealthTargetTest.cpp",
     ],
diff --git a/health/utils/libhealthloop/HealthLoop.cpp b/health/utils/libhealthloop/HealthLoop.cpp
index 3f4b5bc..4190769 100644
--- a/health/utils/libhealthloop/HealthLoop.cpp
+++ b/health/utils/libhealthloop/HealthLoop.cpp
@@ -40,8 +40,6 @@
 using namespace android;
 using namespace std::chrono_literals;
 
-#define POWER_SUPPLY_SUBSYSTEM "power_supply"
-
 namespace android {
 namespace hardware {
 namespace health {
@@ -143,7 +141,7 @@
     cp = msg;
 
     while (*cp) {
-        if (!strcmp(cp, "SUBSYSTEM=" POWER_SUPPLY_SUBSYSTEM)) {
+        if (!strcmp(cp, "SUBSYSTEM=power_supply")) {
             ScheduleBatteryUpdate();
             break;
         }
diff --git a/health/utils/libhealthshim/Android.bp b/health/utils/libhealthshim/Android.bp
index 42e4ea7..3a1415f 100644
--- a/health/utils/libhealthshim/Android.bp
+++ b/health/utils/libhealthshim/Android.bp
@@ -70,6 +70,9 @@
         "libhealthshim",
         "libgmock",
     ],
+    tidy_timeout_srcs: [
+        "test.cpp",
+    ],
     srcs: [
         "test.cpp",
     ],
diff --git a/identity/support/Android.bp b/identity/support/Android.bp
index db1a945..4e3d1f7 100644
--- a/identity/support/Android.bp
+++ b/identity/support/Android.bp
@@ -86,6 +86,9 @@
 
 cc_test {
     name: "cppbor_test",
+    tidy_timeout_srcs: [
+        "tests/cppbor_test.cpp",
+    ],
     srcs: [
         "tests/cppbor_test.cpp",
     ],
@@ -101,6 +104,9 @@
 
 cc_test_host {
     name: "cppbor_host_test",
+    tidy_timeout_srcs: [
+        "tests/cppbor_test.cpp",
+    ],
     srcs: [
         "tests/cppbor_test.cpp",
     ],
diff --git a/identity/support/include/android/hardware/identity/support/IdentityCredentialSupport.h b/identity/support/include/android/hardware/identity/support/IdentityCredentialSupport.h
index 82746d6..952b69a 100644
--- a/identity/support/include/android/hardware/identity/support/IdentityCredentialSupport.h
+++ b/identity/support/include/android/hardware/identity/support/IdentityCredentialSupport.h
@@ -407,6 +407,10 @@
 // may be smaller than |maxChunkSize|.
 vector<vector<uint8_t>> chunkVector(const vector<uint8_t>& content, size_t maxChunkSize);
 
+// Extract the issuer subject name from the leaf cert in the given chain,
+// returning it as DER-encoded bytes.
+optional<vector<uint8_t>> extractDerSubjectFromCertificate(const vector<uint8_t>& certificate);
+
 }  // namespace support
 }  // namespace identity
 }  // namespace hardware
diff --git a/identity/support/include/cppbor/cppbor.h b/identity/support/include/cppbor/cppbor.h
index a755db1..af5d82e 100644
--- a/identity/support/include/cppbor/cppbor.h
+++ b/identity/support/include/cppbor/cppbor.h
@@ -274,7 +274,7 @@
     virtual std::unique_ptr<Item> clone() const override { return std::make_unique<Nint>(mValue); }
 
   private:
-    uint64_t addlInfo() const { return -1ll - mValue; }
+    uint64_t addlInfo() const { return -1LL - mValue; }
 
     int64_t mValue;
 };
diff --git a/identity/support/src/IdentityCredentialSupport.cpp b/identity/support/src/IdentityCredentialSupport.cpp
index 36ecdb0..4c2f186 100644
--- a/identity/support/src/IdentityCredentialSupport.cpp
+++ b/identity/support/src/IdentityCredentialSupport.cpp
@@ -209,38 +209,6 @@
     return keyPair;
 }
 
-// Extract the issuer subject name from the leaf cert in the given chain,
-// returning it as DER-encoded bytes.
-optional<vector<uint8_t>> extractDerSubjectFromCertificate(const vector<uint8_t>& certificate) {
-    const uint8_t* input = certificate.data();
-    X509_Ptr cert(d2i_X509(/*cert=*/nullptr, &input, certificate.size()));
-    if (!cert) {
-        LOG(ERROR) << "Failed to parse certificate";
-        return std::nullopt;
-    }
-
-    X509_NAME* subject = X509_get_subject_name(cert.get());
-    if (!subject) {
-        LOG(ERROR) << "Failed to retrieve subject name";
-        return std::nullopt;
-    }
-
-    int encodedSubjectLength = i2d_X509_NAME(subject, /*out=*/nullptr);
-    if (encodedSubjectLength < 0) {
-        LOG(ERROR) << "Error obtaining encoded subject name length";
-        return std::nullopt;
-    }
-
-    vector<uint8_t> encodedSubject(encodedSubjectLength);
-    uint8_t* out = encodedSubject.data();
-    if (encodedSubjectLength != i2d_X509_NAME(subject, &out)) {
-        LOG(ERROR) << "Error encoding subject name";
-        return std::nullopt;
-    }
-
-    return encodedSubject;
-}
-
 // Generates the attestation certificate with the parameters passed in.  Note
 // that the passed in |activeTimeMilliSeconds| |expireTimeMilliSeconds| are in
 // milli seconds since epoch.  We are setting them to milliseconds due to
@@ -900,7 +868,7 @@
     }
 
     optional<vector<uint8_t>> derIssuerSubject =
-            extractDerSubjectFromCertificate(attestationKeyCert);
+            support::extractDerSubjectFromCertificate(attestationKeyCert);
     if (!derIssuerSubject) {
         LOG(ERROR) << "Error error extracting issuer name from the given certificate chain";
         return std::nullopt;
@@ -2325,6 +2293,36 @@
     return testHardwareBoundKey;
 }
 
+optional<vector<uint8_t>> extractDerSubjectFromCertificate(const vector<uint8_t>& certificate) {
+    const uint8_t* input = certificate.data();
+    X509_Ptr cert(d2i_X509(/*cert=*/nullptr, &input, certificate.size()));
+    if (!cert) {
+        LOG(ERROR) << "Failed to parse certificate";
+        return std::nullopt;
+    }
+
+    X509_NAME* subject = X509_get_subject_name(cert.get());
+    if (!subject) {
+        LOG(ERROR) << "Failed to retrieve subject name";
+        return std::nullopt;
+    }
+
+    int encodedSubjectLength = i2d_X509_NAME(subject, /*out=*/nullptr);
+    if (encodedSubjectLength < 0) {
+        LOG(ERROR) << "Error obtaining encoded subject name length";
+        return std::nullopt;
+    }
+
+    vector<uint8_t> encodedSubject(encodedSubjectLength);
+    uint8_t* out = encodedSubject.data();
+    if (encodedSubjectLength != i2d_X509_NAME(subject, &out)) {
+        LOG(ERROR) << "Error encoding subject name";
+        return std::nullopt;
+    }
+
+    return encodedSubject;
+}
+
 }  // namespace support
 }  // namespace identity
 }  // namespace hardware
diff --git a/keymaster/3.0/vts/functional/Android.bp b/keymaster/3.0/vts/functional/Android.bp
index 39bec3f..fde32a7 100644
--- a/keymaster/3.0/vts/functional/Android.bp
+++ b/keymaster/3.0/vts/functional/Android.bp
@@ -26,6 +26,9 @@
 cc_test {
     name: "VtsHalKeymasterV3_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "keymaster_hidl_hal_test.cpp",
+    ],
     srcs: [
         "authorization_set.cpp",
         "attestation_record.cpp",
diff --git a/keymaster/4.0/vts/functional/Android.bp b/keymaster/4.0/vts/functional/Android.bp
index 8e5a0ff..f9a02ba 100644
--- a/keymaster/4.0/vts/functional/Android.bp
+++ b/keymaster/4.0/vts/functional/Android.bp
@@ -26,6 +26,9 @@
 cc_test {
     name: "VtsHalKeymasterV4_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "keymaster_hidl_hal_test.cpp",
+    ],
     srcs: [
         "HmacKeySharingTest.cpp",
         "VerificationTokenTest.cpp",
@@ -50,6 +53,9 @@
 cc_test_library {
     name: "libkeymaster4vtstest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "KeymasterHidlTest.cpp",
+    ],
     srcs: [
         "KeymasterHidlTest.cpp",
     ],
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 eddf83f..6caac63 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
@@ -203,9 +203,8 @@
             }
             int64_t delayUs = finishBy - android::ALooper::GetNowUs();
             if (delayUs < 0) return toStatus(android::TIMED_OUT);
-            (timeoutUs < 0)
-                ? msgCondition.wait(msgLock)
-                : msgCondition.waitRelative(msgLock, delayUs * 1000ll);
+            (timeoutUs < 0) ? msgCondition.wait(msgLock)
+                            : msgCondition.waitRelative(msgLock, delayUs * 1000LL);
         }
     }
 
diff --git a/media/omx/1.0/vts/functional/component/Android.bp b/media/omx/1.0/vts/functional/component/Android.bp
index 9d4d092..7b8ec9d 100644
--- a/media/omx/1.0/vts/functional/component/Android.bp
+++ b/media/omx/1.0/vts/functional/component/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalMediaOmxV1_0TargetComponentTest",
     defaults: ["VtsHalMediaOmxV1_0Defaults"],
+    tidy_timeout_srcs: ["VtsHalMediaOmxV1_0TargetComponentTest.cpp"],
     srcs: ["VtsHalMediaOmxV1_0TargetComponentTest.cpp"],
     test_suites: [
         "vts",
diff --git a/media/omx/1.0/vts/functional/store/VtsHalMediaOmxV1_0TargetStoreTest.cpp b/media/omx/1.0/vts/functional/store/VtsHalMediaOmxV1_0TargetStoreTest.cpp
index 8699de3..d9a6363 100644
--- a/media/omx/1.0/vts/functional/store/VtsHalMediaOmxV1_0TargetStoreTest.cpp
+++ b/media/omx/1.0/vts/functional/store/VtsHalMediaOmxV1_0TargetStoreTest.cpp
@@ -20,7 +20,9 @@
 #endif
 
 #include <android-base/logging.h>
+#include <android-base/properties.h>
 #include <android-base/strings.h>
+#include <android/api-level.h>
 
 #include <android/hardware/media/omx/1.0/IOmx.h>
 #include <android/hardware/media/omx/1.0/IOmxNode.h>
@@ -371,6 +373,31 @@
     }
 }
 
+static int getFirstApiLevel() {
+    return android::base::GetIntProperty("ro.product.first_api_level", __ANDROID_API_T__);
+}
+
+// list components and roles.
+TEST_P(StoreHidlTest, OmxCodecAllowedTest) {
+    hidl_vec<IOmx::ComponentInfo> componentInfos = getComponentInfoList(omx);
+    for (IOmx::ComponentInfo info : componentInfos) {
+        for (std::string role : info.mRoles) {
+            if (role.find("video_decoder") != std::string::npos ||
+                role.find("video_encoder") != std::string::npos) {
+                ASSERT_LT(getFirstApiLevel(), __ANDROID_API_S__)
+                        << " Component: " << info.mName.c_str() << " Role: " << role.c_str()
+                        << " not allowed for devices launching with Android S and above";
+            }
+            if (role.find("audio_decoder") != std::string::npos ||
+                role.find("audio_encoder") != std::string::npos) {
+                ASSERT_LT(getFirstApiLevel(), __ANDROID_API_T__)
+                        << " Component: " << info.mName.c_str() << " Role: " << role.c_str()
+                        << " not allowed for devices launching with Android T and above";
+            }
+        }
+    }
+}
+
 // list components and roles.
 TEST_P(StoreHidlTest, ListNodes) {
     description("enumerate component and roles");
diff --git a/neuralnetworks/1.2/utils/Android.bp b/neuralnetworks/1.2/utils/Android.bp
index 4c5f065..e7d514f 100644
--- a/neuralnetworks/1.2/utils/Android.bp
+++ b/neuralnetworks/1.2/utils/Android.bp
@@ -45,21 +45,15 @@
             cflags: ["-DNN_DEBUGGABLE"],
         },
     },
-    target: {
-        host: {
-            cflags: [
-                "-D__INTRODUCED_IN(x)=",
-                "-D__assert(a,b,c)=",
-                // We want all the APIs to be available on the host.
-                "-D__ANDROID_API__=10000",
-            ],
-        },
-    },
 }
 
 cc_test {
     name: "neuralnetworks_utils_hal_1_2_test",
     host_supported: true,
+    tidy_timeout_srcs: [
+        "test/DeviceTest.cpp",
+        "test/PreparedModelTest.cpp",
+    ],
     srcs: ["test/*.cpp"],
     static_libs: [
         "android.hardware.neuralnetworks@1.0",
diff --git a/neuralnetworks/1.2/vts/functional/Android.bp b/neuralnetworks/1.2/vts/functional/Android.bp
index 52d51e2..2177924 100644
--- a/neuralnetworks/1.2/vts/functional/Android.bp
+++ b/neuralnetworks/1.2/vts/functional/Android.bp
@@ -44,6 +44,9 @@
 cc_test {
     name: "VtsHalNeuralnetworksV1_2TargetTest",
     defaults: ["neuralnetworks_vts_functional_defaults"],
+    tidy_timeout_srcs: [
+        "CompilationCachingTests.cpp",
+    ],
     srcs: [
         "BasicTests.cpp",
         "CompilationCachingTests.cpp",
diff --git a/neuralnetworks/1.3/utils/Android.bp b/neuralnetworks/1.3/utils/Android.bp
index c512dda..05413e6 100644
--- a/neuralnetworks/1.3/utils/Android.bp
+++ b/neuralnetworks/1.3/utils/Android.bp
@@ -42,21 +42,15 @@
         "neuralnetworks_utils_hal_1_1",
         "neuralnetworks_utils_hal_1_2",
     ],
-    target: {
-        host: {
-            cflags: [
-                "-D__INTRODUCED_IN(x)=",
-                "-D__assert(a,b,c)=",
-                // We want all the APIs to be available on the host.
-                "-D__ANDROID_API__=10000",
-            ],
-        },
-    },
 }
 
 cc_test {
     name: "neuralnetworks_utils_hal_1_3_test",
     host_supported: true,
+    tidy_timeout_srcs: [
+        "test/DeviceTest.cpp",
+        "test/PreparedModelTest.cpp",
+    ],
     srcs: ["test/*.cpp"],
     static_libs: [
         "android.hardware.neuralnetworks@1.0",
diff --git a/neuralnetworks/1.3/vts/functional/Android.bp b/neuralnetworks/1.3/vts/functional/Android.bp
index 8951760..9fa0f0a 100644
--- a/neuralnetworks/1.3/vts/functional/Android.bp
+++ b/neuralnetworks/1.3/vts/functional/Android.bp
@@ -45,6 +45,10 @@
 cc_test {
     name: "VtsHalNeuralnetworksV1_3TargetTest",
     defaults: ["neuralnetworks_vts_functional_defaults"],
+    tidy_timeout_srcs: [
+        "CompilationCachingTests.cpp",
+        "MemoryDomainTests.cpp",
+    ],
     srcs: [
         "BasicTests.cpp",
         "CompilationCachingTests.cpp",
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PrepareModelConfig.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PrepareModelConfig.aidl
index 85c924f..1f44ba7 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PrepareModelConfig.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PrepareModelConfig.aidl
@@ -39,7 +39,8 @@
   long deadlineNs;
   ParcelFileDescriptor[] modelCache;
   ParcelFileDescriptor[] dataCache;
-  byte[] cacheToken;
+  byte[32] cacheToken;
   android.hardware.neuralnetworks.TokenValuePair[] compilationHints;
   android.hardware.neuralnetworks.ExtensionNameAndPrefix[] extensionNameToPrefix;
+  const int BYTE_SIZE_OF_CACHE_TOKEN = 32;
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
index 821b9fe..7808fc2 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
@@ -39,7 +39,7 @@
     /**
      * The byte size of the cache token.
      */
-    const int BYTE_SIZE_OF_CACHE_TOKEN = 32;
+    const int BYTE_SIZE_OF_CACHE_TOKEN = PrepareModelConfig.BYTE_SIZE_OF_CACHE_TOKEN;
     /**
      * The maximum number of files for each type of cache in compilation caching.
      */
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
index 949804e..f752750 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
@@ -204,6 +204,12 @@
      * appropriate ErrorStatus value. If the inputs to the function are valid and there is no error,
      * createReusableExecution must construct a reusable execution.
      *
+     * This method will be called when a client requests a reusable execution with consistent
+     * request and execution config. For single-time execution,
+     * {@link IPreparedModel::executeSynchronouslyWithConfig} or
+     * {@link IPreparedModel::executeFencedWithConfig} is preferred, because the overhead of
+     * setting up a reusable execution can be avoided.
+     *
      * @param request The input and output information on which the prepared model is to be
      *                executed.
      * @param config Specifies the execution configuration parameters.
@@ -223,6 +229,10 @@
      * ExecutionConfig} instead of a list of configuration parameters, and ExecutionConfig contains
      * more configuration parameters than are passed to executeSynchronously.
      *
+     * This method is preferred when a client requests a single-time synchronous execution.
+     * For reusable execution with consistent request and execution config,
+     * {@link IPreparedModel::createReusableExecution} must be called.
+     *
      * @param request The input and output information on which the prepared model is to be
      *                executed.
      * @param config Specifies the execution configuration parameters.
@@ -246,6 +256,10 @@
      * ExecutionConfig} instead of a list of configuration parameters, and ExecutionConfig contains
      * more configuration parameters than are passed to executeFenced.
      *
+     * This method is preferred when a client requests a single-time fenced execution.
+     * For reusable execution with consistent request and execution config,
+     * {@link IPreparedModel::createReusableExecution} must be called.
+     *
      * @param request The input and output information on which the prepared model is to be
      *                executed. The outputs in the request must have fully specified dimensions.
      * @param waitFor A vector of sync fence file descriptors. Execution must not start until all
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/PrepareModelConfig.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/PrepareModelConfig.aidl
index 96df968..55bd291 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/PrepareModelConfig.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/PrepareModelConfig.aidl
@@ -28,6 +28,11 @@
 @VintfStability
 parcelable PrepareModelConfig {
     /**
+     * The byte size of the cache token.
+     */
+    const int BYTE_SIZE_OF_CACHE_TOKEN = 32;
+
+    /**
      * Indicates the intended execution behavior of a prepared model.
      */
     ExecutionPreference preference;
@@ -66,7 +71,7 @@
      */
     ParcelFileDescriptor[] dataCache;
     /**
-     * A caching token of length IDevice::BYTE_SIZE_OF_CACHE_TOKEN identifying
+     * A caching token of length 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
      * IDevice::prepareModelFromCache.  Tokens should be chosen to have a low
@@ -77,7 +82,7 @@
      * indicating that caching information is not provided, this
      * token must be ignored.
      */
-    byte[] cacheToken;
+    byte[BYTE_SIZE_OF_CACHE_TOKEN] cacheToken;
     /**
      * A vector of token / value pairs represent vendor specific
      * compilation hints or metadata. The provided TokenValuePairs must not
diff --git a/neuralnetworks/aidl/utils/Android.bp b/neuralnetworks/aidl/utils/Android.bp
index 41eae85..2b7b787 100644
--- a/neuralnetworks/aidl/utils/Android.bp
+++ b/neuralnetworks/aidl/utils/Android.bp
@@ -105,6 +105,10 @@
         "neuralnetworks_use_latest_utils_hal_aidl",
         "neuralnetworks_utils_defaults",
     ],
+    tidy_timeout_srcs: [
+        "test/DeviceTest.cpp",
+        "test/PreparedModelTest.cpp",
+    ],
     srcs: [
         "test/*.cpp",
     ],
@@ -123,14 +127,6 @@
         android: {
             shared_libs: ["libnativewindow"],
         },
-        host: {
-            cflags: [
-                "-D__INTRODUCED_IN(x)=",
-                "-D__assert(a,b,c)=",
-                // We want all the APIs to be available on the host.
-                "-D__ANDROID_API__=10000",
-            ],
-        },
     },
     cflags: [
         /* GMOCK defines functions for printing all MOCK_DEVICE arguments and
diff --git a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Conversions.h b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Conversions.h
index af58715..71a28ef 100644
--- a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Conversions.h
+++ b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Conversions.h
@@ -27,6 +27,7 @@
 #include <aidl/android/hardware/neuralnetworks/Extension.h>
 #include <aidl/android/hardware/neuralnetworks/ExtensionNameAndPrefix.h>
 #include <aidl/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.h>
+#include <aidl/android/hardware/neuralnetworks/IDevice.h>
 #include <aidl/android/hardware/neuralnetworks/Memory.h>
 #include <aidl/android/hardware/neuralnetworks/Model.h>
 #include <aidl/android/hardware/neuralnetworks/Operand.h>
@@ -219,6 +220,7 @@
 #endif  // NN_AIDL_V4_OR_ABOVE
 
 nn::GeneralResult<std::vector<int32_t>> toSigned(const std::vector<uint32_t>& vec);
+std::vector<uint8_t> toVec(const std::array<uint8_t, IDevice::BYTE_SIZE_OF_CACHE_TOKEN>& token);
 
 }  // namespace aidl::android::hardware::neuralnetworks::utils
 
diff --git a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Service.h b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Service.h
index cb6ff4b..f229165 100644
--- a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Service.h
+++ b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Service.h
@@ -25,7 +25,8 @@
 
 namespace aidl::android::hardware::neuralnetworks::utils {
 
-::android::nn::GeneralResult<::android::nn::SharedDevice> getDevice(const std::string& name);
+::android::nn::GeneralResult<::android::nn::SharedDevice> getDevice(
+        const std::string& name, ::android::nn::Version::Level maxFeatureLevelAllowed);
 
 }  // namespace aidl::android::hardware::neuralnetworks::utils
 
diff --git a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Utils.h b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Utils.h
index beca38b..7ed5437 100644
--- a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Utils.h
+++ b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Utils.h
@@ -26,6 +26,8 @@
 #include <nnapi/Types.h>
 #include <nnapi/Validation.h>
 
+#include <type_traits>
+
 namespace aidl::android::hardware::neuralnetworks::utils {
 
 constexpr auto kDefaultPriority = Priority::MEDIUM;
@@ -80,6 +82,11 @@
     return convert(NN_TRY(nn::convert(nonCanonicalObject)));
 }
 
+template <typename Type>
+constexpr std::underlying_type_t<Type> underlyingType(Type value) {
+    return static_cast<std::underlying_type_t<Type>>(value);
+}
+
 nn::GeneralResult<Memory> clone(const Memory& memory);
 nn::GeneralResult<Request> clone(const Request& request);
 nn::GeneralResult<RequestMemoryPool> clone(const RequestMemoryPool& requestPool);
diff --git a/neuralnetworks/aidl/utils/src/Conversions.cpp b/neuralnetworks/aidl/utils/src/Conversions.cpp
index 9b897c4..081e3d7 100644
--- a/neuralnetworks/aidl/utils/src/Conversions.cpp
+++ b/neuralnetworks/aidl/utils/src/Conversions.cpp
@@ -57,10 +57,6 @@
     while (UNLIKELY(value > std::numeric_limits<int32_t>::max())) return NN_ERROR()
 
 namespace {
-template <typename Type>
-constexpr std::underlying_type_t<Type> underlyingType(Type value) {
-    return static_cast<std::underlying_type_t<Type>>(value);
-}
 
 constexpr int64_t kNoTiming = -1;
 
@@ -70,6 +66,7 @@
 namespace {
 
 using ::aidl::android::hardware::common::NativeHandle;
+using ::aidl::android::hardware::neuralnetworks::utils::underlyingType;
 
 template <typename Input>
 using UnvalidatedConvertOutput =
@@ -404,7 +401,7 @@
 #endif  // __ANDROID__
         }
     }
-    return NN_ERROR() << "Unrecognized Memory::Tag: " << memory.getTag();
+    return NN_ERROR() << "Unrecognized Memory::Tag: " << underlyingType(memory.getTag());
 }
 
 GeneralResult<Timing> unvalidatedConvert(const aidl_hal::Timing& timing) {
@@ -614,7 +611,7 @@
     using Ts::operator()...;
 };
 template <class... Ts>
-overloaded(Ts...)->overloaded<Ts...>;
+overloaded(Ts...) -> overloaded<Ts...>;
 
 #ifdef __ANDROID__
 nn::GeneralResult<common::NativeHandle> aidlHandleFromNativeHandle(
@@ -1190,4 +1187,8 @@
     return std::vector<int32_t>(vec.begin(), vec.end());
 }
 
+std::vector<uint8_t> toVec(const std::array<uint8_t, IDevice::BYTE_SIZE_OF_CACHE_TOKEN>& token) {
+    return std::vector<uint8_t>(token.begin(), token.end());
+}
+
 }  // namespace aidl::android::hardware::neuralnetworks::utils
diff --git a/neuralnetworks/aidl/utils/src/Device.cpp b/neuralnetworks/aidl/utils/src/Device.cpp
index f3f4fdb..b64a40d 100644
--- a/neuralnetworks/aidl/utils/src/Device.cpp
+++ b/neuralnetworks/aidl/utils/src/Device.cpp
@@ -229,7 +229,6 @@
     const auto aidlDeadline = NN_TRY(convert(deadline));
     auto aidlModelCache = NN_TRY(convert(modelCache));
     auto aidlDataCache = NN_TRY(convert(dataCache));
-    const auto aidlToken = NN_TRY(convert(token));
 
     const auto cb = ndk::SharedRefBase::make<PreparedModelCallback>(kFeatureLevel);
     const auto scoped = kDeathHandler.protectCallback(cb.get());
@@ -240,12 +239,13 @@
         const auto ret = kDevice->prepareModelWithConfig(
                 aidlModel,
                 {aidlPreference, aidlPriority, aidlDeadline, std::move(aidlModelCache),
-                 std::move(aidlDataCache), aidlToken, std::move(aidlHints),
+                 std::move(aidlDataCache), token, std::move(aidlHints),
                  std::move(aidlExtensionPrefix)},
                 cb);
         HANDLE_ASTATUS(ret) << "prepareModel failed";
         return cb->get();
     }
+    const auto aidlToken = NN_TRY(convert(token));
     const auto ret = kDevice->prepareModel(aidlModel, aidlPreference, aidlPriority, aidlDeadline,
                                            aidlModelCache, aidlDataCache, aidlToken, cb);
     HANDLE_ASTATUS(ret) << "prepareModel failed";
diff --git a/neuralnetworks/aidl/utils/src/InvalidDevice.cpp b/neuralnetworks/aidl/utils/src/InvalidDevice.cpp
index 33270ff..44f8ea9 100644
--- a/neuralnetworks/aidl/utils/src/InvalidDevice.cpp
+++ b/neuralnetworks/aidl/utils/src/InvalidDevice.cpp
@@ -189,7 +189,8 @@
         }
     }
     return prepareModel(model, config.preference, config.priority, config.deadlineNs,
-                        config.modelCache, config.dataCache, config.cacheToken, callback);
+                        config.modelCache, config.dataCache, utils::toVec(config.cacheToken),
+                        callback);
 }
 
 ndk::ScopedAStatus InvalidDevice::prepareModelFromCache(
diff --git a/neuralnetworks/aidl/utils/src/Service.cpp b/neuralnetworks/aidl/utils/src/Service.cpp
index e48593c..24fbb53 100644
--- a/neuralnetworks/aidl/utils/src/Service.cpp
+++ b/neuralnetworks/aidl/utils/src/Service.cpp
@@ -55,11 +55,12 @@
 
 }  // namespace
 
-nn::GeneralResult<nn::SharedDevice> getDevice(const std::string& instanceName) {
+nn::GeneralResult<nn::SharedDevice> getDevice(
+        const std::string& instanceName, ::android::nn::Version::Level maxFeatureLevelAllowed) {
     auto fullName = std::string(IDevice::descriptor) + "/" + instanceName;
     hal::utils::ResilientDevice::Factory makeDevice =
-            [instanceName,
-             name = std::move(fullName)](bool blocking) -> nn::GeneralResult<nn::SharedDevice> {
+            [instanceName, name = std::move(fullName),
+             maxFeatureLevelAllowed](bool blocking) -> nn::GeneralResult<nn::SharedDevice> {
         std::add_pointer_t<AIBinder*(const char*)> getService;
         if (blocking) {
             if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
@@ -79,7 +80,8 @@
                    << " returned nullptr";
         }
         ABinderProcess_startThreadPool();
-        const auto featureLevel = NN_TRY(getAidlServiceFeatureLevel(service.get()));
+        auto featureLevel = NN_TRY(getAidlServiceFeatureLevel(service.get()));
+        featureLevel.level = std::min(featureLevel.level, maxFeatureLevelAllowed);
         return Device::create(instanceName, std::move(service), featureLevel);
     };
 
diff --git a/neuralnetworks/aidl/utils/src/Utils.cpp b/neuralnetworks/aidl/utils/src/Utils.cpp
index 03407be..76a0b07 100644
--- a/neuralnetworks/aidl/utils/src/Utils.cpp
+++ b/neuralnetworks/aidl/utils/src/Utils.cpp
@@ -88,7 +88,7 @@
             return Memory::make<Memory::Tag::hardwareBuffer>(std::move(handle));
         }
     }
-    return (NN_ERROR() << "Unrecognized Memory::Tag: " << memory.getTag())
+    return (NN_ERROR() << "Unrecognized Memory::Tag: " << underlyingType(memory.getTag()))
             .
             operator nn::GeneralResult<Memory>();
 }
@@ -103,7 +103,7 @@
     }
     // Using explicit type conversion because std::variant inside the RequestMemoryPool confuses the
     // compiler.
-    return (NN_ERROR() << "Unrecognized request pool tag: " << requestPool.getTag())
+    return (NN_ERROR() << "Unrecognized request pool tag: " << underlyingType(requestPool.getTag()))
             .
             operator nn::GeneralResult<RequestMemoryPool>();
 }
diff --git a/neuralnetworks/aidl/vts/functional/Android.bp b/neuralnetworks/aidl/vts/functional/Android.bp
index 356cdb0..04b4a45 100644
--- a/neuralnetworks/aidl/vts/functional/Android.bp
+++ b/neuralnetworks/aidl/vts/functional/Android.bp
@@ -31,6 +31,10 @@
         "use_libaidlvintf_gtest_helper_static",
     ],
     host_supported: true,
+    tidy_timeout_srcs: [
+        "CompilationCachingTests.cpp",
+        "MemoryDomainTests.cpp",
+    ],
     srcs: [
         "BasicTests.cpp",
         "Callbacks.cpp",
diff --git a/neuralnetworks/aidl/vts/functional/Utils.h b/neuralnetworks/aidl/vts/functional/Utils.h
index 4e0a4aa..ccb0778 100644
--- a/neuralnetworks/aidl/vts/functional/Utils.h
+++ b/neuralnetworks/aidl/vts/functional/Utils.h
@@ -21,6 +21,7 @@
 #include <gtest/gtest.h>
 
 #include <algorithm>
+#include <array>
 #include <iosfwd>
 #include <string>
 #include <utility>
@@ -47,6 +48,7 @@
 inline constexpr int64_t kOmittedTimeoutDuration = -1;
 inline constexpr int64_t kNoDuration = -1;
 inline const std::vector<uint8_t> kEmptyCacheToken(IDevice::BYTE_SIZE_OF_CACHE_TOKEN);
+inline const std::array<uint8_t, IDevice::BYTE_SIZE_OF_CACHE_TOKEN> kEmptyCacheTokenArray{};
 
 // Returns the amount of space needed to store a value of the specified type.
 //
diff --git a/neuralnetworks/aidl/vts/functional/ValidateModel.cpp b/neuralnetworks/aidl/vts/functional/ValidateModel.cpp
index 931ba25..060434e 100644
--- a/neuralnetworks/aidl/vts/functional/ValidateModel.cpp
+++ b/neuralnetworks/aidl/vts/functional/ValidateModel.cpp
@@ -85,7 +85,7 @@
     std::shared_ptr<PreparedModelCallback> preparedModelCallback =
             ndk::SharedRefBase::make<PreparedModelCallback>();
     const auto prepareLaunchStatus = device->prepareModelWithConfig(
-            model, {preference, priority, kNoDeadline, {}, {}, kEmptyCacheToken, {}, {}},
+            model, {preference, priority, kNoDeadline, {}, {}, kEmptyCacheTokenArray, {}, {}},
             preparedModelCallback);
     ASSERT_FALSE(prepareLaunchStatus.isOk());
     ASSERT_EQ(prepareLaunchStatus.getExceptionCode(), EX_SERVICE_SPECIFIC);
diff --git a/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp b/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp
index 51b4805..bf87f15 100644
--- a/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp
+++ b/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp
@@ -72,7 +72,7 @@
                                                 kNoDeadline,
                                                 {},
                                                 {},
-                                                kEmptyCacheToken,
+                                                kEmptyCacheTokenArray,
                                                 {},
                                                 {}},
                                                preparedModelCallback);
diff --git a/neuralnetworks/utils/adapter/aidl/src/Device.cpp b/neuralnetworks/utils/adapter/aidl/src/Device.cpp
index 84aaddb..1b90a1a 100644
--- a/neuralnetworks/utils/adapter/aidl/src/Device.cpp
+++ b/neuralnetworks/utils/adapter/aidl/src/Device.cpp
@@ -312,8 +312,8 @@
         const std::shared_ptr<IPreparedModelCallback>& callback) {
     const auto result = adapter::prepareModel(
             kDevice, kExecutor, model, config.preference, config.priority, config.deadlineNs,
-            config.modelCache, config.dataCache, config.cacheToken, config.compilationHints,
-            config.extensionNameToPrefix, callback);
+            config.modelCache, config.dataCache, utils::toVec(config.cacheToken),
+            config.compilationHints, config.extensionNameToPrefix, callback);
     if (!result.has_value()) {
         const auto& [message, code] = result.error();
         const auto aidlCode = utils::convert(code).value_or(ErrorStatus::GENERAL_FAILURE);
diff --git a/neuralnetworks/utils/common/Android.bp b/neuralnetworks/utils/common/Android.bp
index bfba24f..91fca2f 100644
--- a/neuralnetworks/utils/common/Android.bp
+++ b/neuralnetworks/utils/common/Android.bp
@@ -36,6 +36,7 @@
 cc_test {
     name: "neuralnetworks_utils_hal_common_test",
     host_supported: true,
+    tidy_timeout_srcs: ["test/ResilientDeviceTest.cpp"],
     srcs: ["test/*.cpp"],
     static_libs: [
         "libgmock",
diff --git a/neuralnetworks/utils/service/include/nnapi/hal/Service.h b/neuralnetworks/utils/service/include/nnapi/hal/Service.h
index 2fd5237..38d2a54 100644
--- a/neuralnetworks/utils/service/include/nnapi/hal/Service.h
+++ b/neuralnetworks/utils/service/include/nnapi/hal/Service.h
@@ -24,12 +24,16 @@
 
 namespace android::hardware::neuralnetworks::service {
 
-struct SharedDeviceAndUpdatability {
-    nn::SharedDevice device;
-    bool isDeviceUpdatable = false;
-};
-
-std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers);
+/**
+ * @brief Get the NNAPI sAIDL and HIDL services declared in the VINTF.
+ *
+ * @pre maxFeatureLevelAllowed >= Version::Level::FEATURE_LEVEL_5
+ *
+ * @param maxFeatureLevelAllowed Maximum version of driver allowed to be used. Any driver version
+ *     exceeding this must be clamped to `maxFeatureLevelAllowed`.
+ * @return A list of devices and whether each device is updatable or not.
+ */
+std::vector<nn::SharedDevice> getDevices(nn::Version::Level maxFeatureLevelAllowed);
 
 }  // namespace android::hardware::neuralnetworks::service
 
diff --git a/neuralnetworks/utils/service/src/Service.cpp b/neuralnetworks/utils/service/src/Service.cpp
index 2286288..dd37dae 100644
--- a/neuralnetworks/utils/service/src/Service.cpp
+++ b/neuralnetworks/utils/service/src/Service.cpp
@@ -51,7 +51,7 @@
 using getDeviceFn = std::add_pointer_t<nn::GeneralResult<nn::SharedDevice>(const std::string&)>;
 
 void getHidlDevicesForVersion(const std::string& descriptor, getDeviceFn getDevice,
-                              std::vector<SharedDeviceAndUpdatability>* devices,
+                              std::vector<nn::SharedDevice>* devices,
                               std::unordered_set<std::string>* registeredDevices) {
     CHECK(devices != nullptr);
     CHECK(registeredDevices != nullptr);
@@ -63,7 +63,7 @@
             if (maybeDevice.has_value()) {
                 auto device = std::move(maybeDevice).value();
                 CHECK(device != nullptr);
-                devices->push_back({.device = std::move(device)});
+                devices->push_back(std::move(device));
             } else {
                 LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
                            << ": " << maybeDevice.error().message;
@@ -72,9 +72,9 @@
     }
 }
 
-void getAidlDevices(std::vector<SharedDeviceAndUpdatability>* devices,
+void getAidlDevices(std::vector<nn::SharedDevice>* devices,
                     std::unordered_set<std::string>* registeredDevices,
-                    bool includeUpdatableDrivers) {
+                    nn::Version::Level maxFeatureLevelAllowed) {
     CHECK(devices != nullptr);
     CHECK(registeredDevices != nullptr);
 
@@ -91,21 +91,12 @@
     }
 
     for (const auto& name : names) {
-        bool isDeviceUpdatable = false;
-        if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
-            const auto instance = std::string(aidl_hal::IDevice::descriptor) + '/' + name;
-            isDeviceUpdatable = AServiceManager_isUpdatableViaApex(instance.c_str());
-        }
-        if (isDeviceUpdatable && !includeUpdatableDrivers) {
-            continue;
-        }
         if (const auto [it, unregistered] = registeredDevices->insert(name); unregistered) {
-            auto maybeDevice = aidl_hal::utils::getDevice(name);
+            auto maybeDevice = aidl_hal::utils::getDevice(name, maxFeatureLevelAllowed);
             if (maybeDevice.has_value()) {
                 auto device = std::move(maybeDevice).value();
                 CHECK(device != nullptr);
-                devices->push_back(
-                        {.device = std::move(device), .isDeviceUpdatable = isDeviceUpdatable});
+                devices->push_back(std::move(device));
             } else {
                 LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
                            << ": " << maybeDevice.error().message;
@@ -116,11 +107,13 @@
 
 }  // namespace
 
-std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers) {
-    std::vector<SharedDeviceAndUpdatability> devices;
+std::vector<nn::SharedDevice> getDevices(nn::Version::Level maxFeatureLevelAllowed) {
+    std::vector<nn::SharedDevice> devices;
     std::unordered_set<std::string> registeredDevices;
 
-    getAidlDevices(&devices, &registeredDevices, includeUpdatableDrivers);
+    CHECK_GE(maxFeatureLevelAllowed, nn::Version::Level::FEATURE_LEVEL_5);
+
+    getAidlDevices(&devices, &registeredDevices, maxFeatureLevelAllowed);
 
     getHidlDevicesForVersion(V1_3::IDevice::descriptor, &V1_3::utils::getDevice, &devices,
                              &registeredDevices);
diff --git a/radio/1.0/Android.bp b/radio/1.0/Android.bp
index cd64bca..8d0d782 100644
--- a/radio/1.0/Android.bp
+++ b/radio/1.0/Android.bp
@@ -23,5 +23,9 @@
     interfaces: [
         "android.hidl.base@1.0",
     ],
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.bluetooth",
+    ],
     gen_java: true,
 }
diff --git a/radio/1.0/vts/functional/sap_hidl_hal_test.cpp b/radio/1.0/vts/functional/sap_hidl_hal_test.cpp
index fe10587..5224624 100644
--- a/radio/1.0/vts/functional/sap_hidl_hal_test.cpp
+++ b/radio/1.0/vts/functional/sap_hidl_hal_test.cpp
@@ -16,8 +16,37 @@
 
 #include <sap_hidl_hal_utils.h>
 
+bool isServiceValidForDeviceConfiguration(hidl_string& serviceName) {
+    if (isSsSsEnabled()) {
+        // Device is configured as SSSS.
+        if (serviceName != SAP_SERVICE_SLOT1_NAME) {
+            LOG(DEBUG) << "Not valid for SSSS device.";
+            return false;
+        }
+    } else if (isDsDsEnabled()) {
+        // Device is configured as DSDS.
+        if (serviceName != SAP_SERVICE_SLOT1_NAME && serviceName != SAP_SERVICE_SLOT2_NAME) {
+            LOG(DEBUG) << "Not valid for DSDS device.";
+            return false;
+        }
+    } else if (isTsTsEnabled()) {
+        // Device is configured as TSTS.
+        if (serviceName != SAP_SERVICE_SLOT1_NAME && serviceName != SAP_SERVICE_SLOT2_NAME &&
+            serviceName != SAP_SERVICE_SLOT3_NAME) {
+            LOG(DEBUG) << "Not valid for TSTS device.";
+            return false;
+        }
+    }
+    return true;
+}
+
 void SapHidlTest::SetUp() {
-    sap = ISap::getService(GetParam());
+    hidl_string serviceName = GetParam();
+    if (!isServiceValidForDeviceConfiguration(serviceName)) {
+        LOG(DEBUG) << "Skipped the test due to device configuration.";
+        GTEST_SKIP();
+    }
+    sap = ISap::getService(serviceName);
     ASSERT_NE(sap, nullptr);
 
     sapCb = new SapCallback(*this);
diff --git a/radio/1.0/vts/functional/sap_hidl_hal_utils.h b/radio/1.0/vts/functional/sap_hidl_hal_utils.h
index 2fc9ae3..8e86591 100644
--- a/radio/1.0/vts/functional/sap_hidl_hal_utils.h
+++ b/radio/1.0/vts/functional/sap_hidl_hal_utils.h
@@ -36,7 +36,15 @@
 using ::android::sp;
 
 #define TIMEOUT_PERIOD 40
-#define SAP_SERVICE_NAME "slot1"
+
+// HAL instance name for SIM slot 1 or single SIM device
+#define SAP_SERVICE_SLOT1_NAME "slot1"
+
+// HAL instance name for SIM slot 2 on dual SIM device
+#define SAP_SERVICE_SLOT2_NAME "slot2"
+
+// HAL instance name for SIM slot 3 on triple SIM device
+#define SAP_SERVICE_SLOT3_NAME "slot3"
 
 class SapHidlTest;
 
diff --git a/radio/aidl/vts/Android.bp b/radio/aidl/vts/Android.bp
index 8060e4b..8f28255 100644
--- a/radio/aidl/vts/Android.bp
+++ b/radio/aidl/vts/Android.bp
@@ -27,6 +27,12 @@
         "VtsHalTargetTestDefaults",
         "use_libaidlvintf_gtest_helper_static",
     ],
+    tidy_timeout_srcs: [
+        "radio_messaging_test.cpp",
+        "radio_network_test.cpp",
+        "radio_sim_test.cpp",
+        "radio_voice_test.cpp",
+    ],
     srcs: [
         "radio_aidl_hal_utils.cpp",
         "radio_config_indication.cpp",
diff --git a/radio/aidl/vts/radio_network_test.cpp b/radio/aidl/vts/radio_network_test.cpp
index 391d63c..e1d508d 100644
--- a/radio/aidl/vts/radio_network_test.cpp
+++ b/radio/aidl/vts/radio_network_test.cpp
@@ -264,11 +264,16 @@
             [&](int serial) { return radio_network->setUsageSetting(serial, originalSetting); },
             {RadioError::NONE});
 
+    // After resetting the value to its original value, update the local cache, which must
+    // always succeed.
+    invokeAndExpectResponse([&](int serial) { return radio_network->getUsageSetting(serial); },
+                            {RadioError::NONE});
+
     // Check that indeed the updated setting was set. We do this after resetting to original
     // conditions to avoid early-exiting the test and leaving the device in a modified state.
-    ASSERT_TRUE(expectedSetting == updatedSetting);
+    EXPECT_EQ(expectedSetting, updatedSetting);
     // Check that indeed the original setting was reset.
-    ASSERT_TRUE(originalSetting == radioRsp_network->usageSetting);
+    EXPECT_EQ(originalSetting, radioRsp_network->usageSetting);
 }
 
 /*
@@ -1728,4 +1733,4 @@
                  RadioError::PASSWORD_INCORRECT, RadioError::SIM_ABSENT, RadioError::SYSTEM_ERR}));
     }
     LOG(DEBUG) << "supplyNetworkDepersonalization finished";
-}
\ No newline at end of file
+}
diff --git a/radio/aidl/vts/radio_voice_test.cpp b/radio/aidl/vts/radio_voice_test.cpp
index eec28b1..249ee63 100644
--- a/radio/aidl/vts/radio_voice_test.cpp
+++ b/radio/aidl/vts/radio_voice_test.cpp
@@ -943,3 +943,37 @@
     }
     LOG(DEBUG) << "cancelPendingUssd finished";
 }
+
+/*
+ * Test IRadioVoice.isVoNrEnabled() for the response returned.
+ */
+TEST_P(RadioVoiceTest, isVoNrEnabled) {
+    LOG(DEBUG) << "isVoNrEnabled";
+    serial = GetRandomSerialNumber();
+
+    radio_voice->isVoNrEnabled(serial);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_voice->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_voice->rspInfo.serial);
+
+    ASSERT_TRUE(CheckAnyOfErrors(radioRsp_voice->rspInfo.error,
+                                 {RadioError::REQUEST_NOT_SUPPORTED, RadioError::NONE}));
+    LOG(DEBUG) << "isVoNrEnabled finished";
+}
+
+/*
+ * Test IRadioVoice.setVoNrEnabled() for the response returned.
+ */
+TEST_P(RadioVoiceTest, setVoNrEnabled) {
+    LOG(DEBUG) << "setVoNrEnabled";
+    serial = GetRandomSerialNumber();
+
+    radio_voice->setVoNrEnabled(serial, true);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_voice->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_voice->rspInfo.serial);
+
+    ASSERT_TRUE(CheckAnyOfErrors(radioRsp_voice->rspInfo.error,
+                                 {RadioError::REQUEST_NOT_SUPPORTED, RadioError::NONE}));
+    LOG(DEBUG) << "setVoNrEnabled finished";
+}
diff --git a/security/dice/aidl/Android.bp b/security/dice/aidl/Android.bp
index 01bc91e..8c31e26 100644
--- a/security/dice/aidl/Android.bp
+++ b/security/dice/aidl/Android.bp
@@ -38,6 +38,10 @@
                 enabled: true,
             },
             apps_enabled: false,
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.compos",
+            ],
         },
         rust: {
             enabled: true,
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
index fa643fc..dcc22c4 100644
--- a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
@@ -49,5 +49,8 @@
   void earlyBootEnded();
   byte[] convertStorageKeyToEphemeral(in byte[] storageKeyBlob);
   android.hardware.security.keymint.KeyCharacteristics[] getKeyCharacteristics(in byte[] keyBlob, in byte[] appId, in byte[] appData);
+  byte[16] getRootOfTrustChallenge();
+  byte[] getRootOfTrust(in byte[16] challenge);
+  void sendRootOfTrust(in byte[] rootOfTrust);
   const int AUTH_TOKEN_MAC_LENGTH = 32;
 }
diff --git a/security/keymint/aidl/android/hardware/security/keymint/DeviceInfo.aidl b/security/keymint/aidl/android/hardware/security/keymint/DeviceInfo.aidl
index b0761bf..abb2a7b 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/DeviceInfo.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/DeviceInfo.aidl
@@ -27,29 +27,29 @@
 @VintfStability
 parcelable DeviceInfo {
     /**
-     * DeviceInfo is a CBOR Map structure described by the following CDDL.
+     * DeviceInfo is a CBOR Map structure described by the following CDDL. DeviceInfo must be
+     * canonicalized according to the specification in RFC 7049. The ordering presented here is
+     * non-canonical to group similar entries semantically.
      *
      *     DeviceInfo = {
-     *         ? "brand" : tstr,
-     *         ? "manufacturer" : tstr,
-     *         ? "product" : tstr,
-     *         ? "model" : tstr,
-     *         ? "board" : tstr,
-     *         ? "vb_state" : "green" / "yellow" / "orange",    // Taken from the AVB values
-     *         ? "bootloader_state" : "locked" / "unlocked",    // Taken from the AVB values
-     *         ? "vbmeta_digest": bstr,                         // Taken from the AVB values
-     *         ? "os_version" : tstr,                    // Same as android.os.Build.VERSION.release
-     *         ? "system_patch_level" : uint,                   // YYYYMMDD
-     *         ? "boot_patch_level" : uint,                     // YYYYMMDD
-     *         ? "vendor_patch_level" : uint,                   // YYYYMMDD
-     *         "version" : 1,                      // The CDDL schema version.
-     *         "security_level" : "tee" / "strongbox"
-     *         "att_id_state": "locked" / "open",  // Attestation IDs State. If "locked", this
-     *                                             // indicates a device's attestable IDs are
-     *                                             // factory-locked and immutable. If "open",
-     *                                             // this indicates the device is still in a
-     *                                             // provisionable state and the attestable IDs
-     *                                             // are not yet frozen.
+     *         "brand" : tstr,
+     *         "manufacturer" : tstr,
+     *         "product" : tstr,
+     *         "model" : tstr,
+     *         "device" : tstr,
+     *         "vb_state" : "green" / "yellow" / "orange",    // Taken from the AVB values
+     *         "bootloader_state" : "locked" / "unlocked",    // Taken from the AVB values
+     *         "vbmeta_digest": bstr,                         // Taken from the AVB values
+     *         ? "os_version" : tstr,                         // Same as
+     *                                                        // android.os.Build.VERSION.release
+     *                                                        // Not optional for TEE.
+     *         "system_patch_level" : uint,                   // YYYYMMDD
+     *         "boot_patch_level" : uint,                     // YYYYMMDD
+     *         "vendor_patch_level" : uint,                   // YYYYMMDD
+     *         "version" : 2,                                 // The CDDL schema version.
+     *         "security_level" : "tee" / "strongbox",
+     *         "fused": 1 / 0,  // 1 if secure boot is enforced for the processor that the IRPC
+     *                          // implementation is contained in. 0 otherwise.
      *     }
      */
     byte[] deviceInfo;
diff --git a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
index 4b63799..da02d54 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
@@ -851,4 +851,82 @@
      */
     KeyCharacteristics[] getKeyCharacteristics(
             in byte[] keyBlob, in byte[] appId, in byte[] appData);
+
+    /**
+     * Returns a 16-byte random challenge nonce, used to prove freshness when exchanging root of
+     * trust data.
+     *
+     * This method may only be implemented by StrongBox KeyMint.  TEE KeyMint implementations must
+     * return ErrorCode::UNIMPLEMENTED.  StrongBox KeyMint implementations MAY return UNIMPLEMENTED,
+     * to indicate that they have an alternative mechanism for getting the data.  If the StrongBox
+     * implementation returns UNIMPLEMENTED, the client should not call `getRootofTrust()` or
+     * `sendRootOfTrust()`.
+     */
+    byte[16] getRootOfTrustChallenge();
+
+    /**
+     * Returns the TEE KeyMint Root of Trust data.
+     *
+     * This method is required for TEE KeyMint.  StrongBox KeyMint implementations MUST return
+     * ErrorCode::UNIMPLEMENTED.
+     *
+     * The returned data is an encoded COSE_Mac0 structure, denoted MacedRootOfTrust in the
+     * following CDDL schema.  Note that K_mac is the shared HMAC key used for auth tokens, etc.:
+     *
+     *     MacedRootOfTrust = [               ; COSE_Mac0 (untagged)
+     *         protected: bstr .cbor {
+     *             1 : 5,                     ; Algorithm : HMAC-256
+     *         },
+     *         unprotected : {},
+     *         payload : bstr .cbor RootOfTrust,
+     *         tag : bstr HMAC-256(K_mac, MAC_structure)
+     *     ]
+     *
+     *     MAC_structure = [
+     *         context : "MAC0",
+     *         protected : bstr .cbor {
+     *             1 : 5,                     ; Algorithm : HMAC-256
+     *         },
+     *         external_aad : bstr .size 16   ; Value of challenge argument
+     *         payload : bstr .cbor RootOfTrust,
+     *     ]
+     *
+     *     RootOfTrust = [
+     *         verifiedBootKey : bstr .size 32,
+     *         deviceLocked : bool,
+     *         verifiedBootState : &VerifiedBootState,
+     *         verifiedBootHash : bstr .size 32,
+     *         bootPatchLevel : int,          ; See Tag::BOOT_PATCHLEVEL
+     *     ]
+     *
+     *     VerifiedBootState = (
+     *         Verified : 0,
+     *         SelfSigned : 1,
+     *         Unverified : 2,
+     *         Failed : 3
+     *     )
+     */
+    byte[] getRootOfTrust(in byte[16] challenge);
+
+    /**
+     * Delivers the TEE KeyMint Root of Trust data to StrongBox KeyMint.  See `getRootOfTrust()`
+     * above for specification of the data format and cryptographic security structure.
+     *
+     * The implementation must verify the MAC on the RootOfTrust data.  If it is valid, and if this
+     * is the first time since reboot that StrongBox KeyMint has received this data, it must store
+     * the RoT data for use in key attestation requests, then return ErrorCode::ERROR_OK.
+     *
+     * If the MAC on the Root of Trust data and challenge is incorrect, the implementation must
+     * return ErrorCode::VERIFICATION_FAILED.
+     *
+     * If the RootOfTrust data has already been received since the last boot, the implementation
+     * must validate the data and return ErrorCode::VERIFICATION_FAILED or ErrorCode::ERROR_OK
+     * according to the result, but must not store the data for use in key attestation requests,
+     * even if verification succeeds.  On success, the challenge is invalidated and a new challenge
+     * must be requested before the RootOfTrust data may be sent again.
+     *
+     * This method is optional for StrongBox KeyMint, which MUST return ErrorCode::UNIMPLEMENTED if
+     * not implemented.  TEE KeyMint implementations must return ErrorCode::UNIMPLEMENTED.
+     */
+    void sendRootOfTrust(in byte[] rootOfTrust);
 }
diff --git a/security/keymint/aidl/android/hardware/security/keymint/MacedPublicKey.aidl b/security/keymint/aidl/android/hardware/security/keymint/MacedPublicKey.aidl
index 62a48e9..ad97443 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/MacedPublicKey.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/MacedPublicKey.aidl
@@ -37,10 +37,10 @@
      *
      *     PublicKey = {               // COSE_Key
      *         1 : 2,                  // Key type : EC2
-     *         3 : -8                  // Algorithm : ES256
-     *         -1 : 6,                 // Curve : P256
-     *         -2 : bstr               // X coordinate, little-endian
-     *         -3 : bstr               // Y coordinate, little-endian
+     *         3 : -7,                 // Algorithm : ES256
+     *         -1 : 1,                 // Curve : P256
+     *         -2 : bstr,              // X coordinate, little-endian
+     *         -3 : bstr,              // Y coordinate, little-endian
      *         ? -70000 : nil          // Presence indicates this is a test key.  If set, K_mac is
      *                                 // all zeros.
      *     },
diff --git a/security/keymint/aidl/default/TEST_MAPPING b/security/keymint/aidl/default/TEST_MAPPING
new file mode 100644
index 0000000..2400ccd
--- /dev/null
+++ b/security/keymint/aidl/default/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit" : [
+    {
+      "name" : "vts_treble_vintf_framework_test"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/security/keymint/aidl/default/android.hardware.security.keymint-service.xml b/security/keymint/aidl/default/android.hardware.security.keymint-service.xml
index 4aa05ef..a4d0302 100644
--- a/security/keymint/aidl/default/android.hardware.security.keymint-service.xml
+++ b/security/keymint/aidl/default/android.hardware.security.keymint-service.xml
@@ -1,10 +1,12 @@
 <manifest version="1.0" type="device">
     <hal format="aidl">
         <name>android.hardware.security.keymint</name>
+        <version>2</version>
         <fqname>IKeyMintDevice/default</fqname>
     </hal>
     <hal format="aidl">
         <name>android.hardware.security.keymint</name>
+        <version>2</version>
         <fqname>IRemotelyProvisionedComponent/default</fqname>
     </hal>
 </manifest>
diff --git a/security/keymint/aidl/vts/functional/Android.bp b/security/keymint/aidl/vts/functional/Android.bp
index 91db3c8..ef5b0bd 100644
--- a/security/keymint/aidl/vts/functional/Android.bp
+++ b/security/keymint/aidl/vts/functional/Android.bp
@@ -50,10 +50,14 @@
     defaults: [
         "keymint_vts_defaults",
     ],
+    tidy_timeout_srcs: [
+        "KeyMintTest.cpp",
+    ],
     srcs: [
         "AttestKeyTest.cpp",
         "DeviceUniqueAttestationTest.cpp",
         "KeyMintTest.cpp",
+        "SecureElementProvisioningTest.cpp",
     ],
     static_libs: [
         "libkeymint_vts_test_utils",
@@ -69,6 +73,9 @@
     defaults: [
         "keymint_vts_defaults",
     ],
+    tidy_timeout_srcs: [
+        "KeyMintAidlTestBase.cpp",
+    ],
     srcs: [
         "KeyMintAidlTestBase.cpp",
     ],
diff --git a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
index 727c6b7..8a26b3c 100644
--- a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
+++ b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
@@ -219,18 +219,22 @@
     AttestationKey attest_key;
     vector<KeyCharacteristics> attest_key_characteristics;
     vector<Certificate> attest_key_cert_chain;
-    ASSERT_EQ(ErrorCode::OK,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .RsaKey(2048, 65537)
-                                  .AttestKey()
-                                  .AttestationChallenge(challenge)
-                                  .AttestationApplicationId(app_id)
-                                  .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                  .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .SetDefaultValidity(),
-                          {} /* attestation signing key */, &attest_key.keyBlob,
-                          &attest_key_characteristics, &attest_key_cert_chain));
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .RsaKey(2048, 65537)
+                                      .AttestKey()
+                                      .AttestationChallenge(challenge)
+                                      .AttestationApplicationId(app_id)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .SetDefaultValidity(),
+                              {} /* attestation signing key */, &attest_key.keyBlob,
+                              &attest_key_characteristics, &attest_key_cert_chain);
+    // Strongbox may not support factory provisioned attestation key.
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+    }
+    ASSERT_EQ(ErrorCode::OK, result);
 
     EXPECT_GT(attest_key_cert_chain.size(), 1);
     verify_subject_and_serial(attest_key_cert_chain[0], serial_int, subject, false);
@@ -319,18 +323,22 @@
             attest_key_opt = attest_key;
         }
 
-        EXPECT_EQ(ErrorCode::OK,
-                  GenerateKey(AuthorizationSetBuilder()
-                                      .RsaKey(2048, 65537)
-                                      .AttestKey()
-                                      .AttestationChallenge("foo")
-                                      .AttestationApplicationId("bar")
-                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                      .SetDefaultValidity(),
-                              attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
-                              &cert_chain_list[i]));
+        auto result = GenerateKey(AuthorizationSetBuilder()
+                                          .RsaKey(2048, 65537)
+                                          .AttestKey()
+                                          .AttestationChallenge("foo")
+                                          .AttestationApplicationId("bar")
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .SetDefaultValidity(),
+                                  attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                                  &cert_chain_list[i]);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
+        ASSERT_EQ(ErrorCode::OK, result);
 
         AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
         AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -392,18 +400,22 @@
             attest_key_opt = attest_key;
         }
 
-        EXPECT_EQ(ErrorCode::OK,
-                  GenerateKey(AuthorizationSetBuilder()
-                                      .EcdsaKey(EcCurve::P_256)
-                                      .AttestKey()
-                                      .AttestationChallenge("foo")
-                                      .AttestationApplicationId("bar")
-                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                      .SetDefaultValidity(),
-                              attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
-                              &cert_chain_list[i]));
+        auto result = GenerateKey(AuthorizationSetBuilder()
+                                          .EcdsaKey(EcCurve::P_256)
+                                          .AttestKey()
+                                          .AttestationChallenge("foo")
+                                          .AttestationApplicationId("bar")
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .SetDefaultValidity(),
+                                  attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                                  &cert_chain_list[i]);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
+        ASSERT_EQ(ErrorCode::OK, result);
 
         AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
         AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -484,34 +496,37 @@
             attest_key.keyBlob = key_blob_list[i - 1];
             attest_key_opt = attest_key;
         }
-
+        ErrorCode result;
         if ((i & 0x1) == 1) {
-            EXPECT_EQ(ErrorCode::OK,
-                      GenerateKey(AuthorizationSetBuilder()
-                                          .EcdsaKey(EcCurve::P_256)
-                                          .AttestKey()
-                                          .AttestationChallenge("foo")
-                                          .AttestationApplicationId("bar")
-                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                          .Authorization(TAG_NO_AUTH_REQUIRED)
-                                          .SetDefaultValidity(),
-                                  attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
-                                  &cert_chain_list[i]));
+            result = GenerateKey(AuthorizationSetBuilder()
+                                         .EcdsaKey(EcCurve::P_256)
+                                         .AttestKey()
+                                         .AttestationChallenge("foo")
+                                         .AttestationApplicationId("bar")
+                                         .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                         .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                         .Authorization(TAG_NO_AUTH_REQUIRED)
+                                         .SetDefaultValidity(),
+                                 attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                                 &cert_chain_list[i]);
         } else {
-            EXPECT_EQ(ErrorCode::OK,
-                      GenerateKey(AuthorizationSetBuilder()
-                                          .RsaKey(2048, 65537)
-                                          .AttestKey()
-                                          .AttestationChallenge("foo")
-                                          .AttestationApplicationId("bar")
-                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                          .Authorization(TAG_NO_AUTH_REQUIRED)
-                                          .SetDefaultValidity(),
-                                  attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
-                                  &cert_chain_list[i]));
+            result = GenerateKey(AuthorizationSetBuilder()
+                                         .RsaKey(2048, 65537)
+                                         .AttestKey()
+                                         .AttestationChallenge("foo")
+                                         .AttestationApplicationId("bar")
+                                         .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                         .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                         .Authorization(TAG_NO_AUTH_REQUIRED)
+                                         .SetDefaultValidity(),
+                                 attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                                 &cert_chain_list[i]);
         }
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
+        ASSERT_EQ(ErrorCode::OK, result);
 
         AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
         AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
diff --git a/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp b/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp
index d4bbd69..1dc5df3 100644
--- a/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp
+++ b/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp
@@ -80,6 +80,7 @@
                                       .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)
                                       .Authorization(TAG_INCLUDE_UNIQUE_ID)
                                       .Authorization(TAG_CREATION_DATETIME, 1619621648000)
+                                      .SetDefaultValidity()
                                       .AttestationChallenge("challenge")
                                       .AttestationApplicationId("foo")
                                       .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
@@ -109,6 +110,7 @@
                                       .Digest(Digest::SHA_2_256)
                                       .Authorization(TAG_INCLUDE_UNIQUE_ID)
                                       .Authorization(TAG_CREATION_DATETIME, 1619621648000)
+                                      .SetDefaultValidity()
                                       .AttestationChallenge("challenge")
                                       .AttestationApplicationId("foo")
                                       .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
@@ -139,6 +141,7 @@
                                       .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)
                                       .Authorization(TAG_INCLUDE_UNIQUE_ID)
                                       .Authorization(TAG_CREATION_DATETIME, 1619621648000)
+                                      .SetDefaultValidity()
                                       .AttestationChallenge("challenge")
                                       .AttestationApplicationId("foo")
                                       .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
@@ -197,6 +200,7 @@
                                       .Digest(Digest::SHA_2_256)
                                       .Authorization(TAG_INCLUDE_UNIQUE_ID)
                                       .Authorization(TAG_CREATION_DATETIME, 1619621648000)
+                                      .SetDefaultValidity()
                                       .AttestationChallenge("challenge")
                                       .AttestationApplicationId("foo")
                                       .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
@@ -264,6 +268,7 @@
                         .Digest(Digest::SHA_2_256)
                         .Authorization(TAG_INCLUDE_UNIQUE_ID)
                         .Authorization(TAG_CREATION_DATETIME, 1619621648000)
+                        .SetDefaultValidity()
                         .AttestationChallenge("challenge")
                         .AttestationApplicationId("foo")
                         .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION);
@@ -336,6 +341,7 @@
                         .Digest(Digest::SHA_2_256)
                         .Authorization(TAG_INCLUDE_UNIQUE_ID)
                         .Authorization(TAG_CREATION_DATETIME, 1619621648000)
+                        .SetDefaultValidity()
                         .AttestationChallenge("challenge")
                         .AttestationApplicationId("foo")
                         .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION);
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
index 146a527..ff4036c 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
@@ -1228,6 +1228,14 @@
     }
 }
 
+vector<uint64_t> KeyMintAidlTestBase::ValidExponents() {
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        return {65537};
+    } else {
+        return {3, 65537};
+    }
+}
+
 vector<Digest> KeyMintAidlTestBase::ValidDigests(bool withNone, bool withMD5) {
     switch (SecLevel()) {
         case SecurityLevel::SOFTWARE:
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
index 27cb99c..6fb5bf5 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
@@ -253,7 +253,10 @@
                                                      .SetDefaultValidity();
         tagModifier(&rsaBuilder);
         errorCode = GenerateKey(rsaBuilder, &rsaKeyData.blob, &rsaKeyData.characteristics);
-        EXPECT_EQ(expectedReturn, errorCode);
+        if (!(SecLevel() == SecurityLevel::STRONGBOX &&
+              ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED == errorCode)) {
+            EXPECT_EQ(expectedReturn, errorCode);
+        }
 
         /* ECDSA */
         KeyData ecdsaKeyData;
@@ -265,7 +268,10 @@
                                                        .SetDefaultValidity();
         tagModifier(&ecdsaBuilder);
         errorCode = GenerateKey(ecdsaBuilder, &ecdsaKeyData.blob, &ecdsaKeyData.characteristics);
-        EXPECT_EQ(expectedReturn, errorCode);
+        if (!(SecLevel() == SecurityLevel::STRONGBOX &&
+              ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED == errorCode)) {
+            EXPECT_EQ(expectedReturn, errorCode);
+        }
         return {aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData};
     }
     bool IsSecure() const { return securityLevel_ != SecurityLevel::SOFTWARE; }
@@ -282,6 +288,7 @@
     vector<EcCurve> InvalidCurves();
 
     vector<Digest> ValidDigests(bool withNone, bool withMD5);
+    vector<uint64_t> ValidExponents();
 
     static vector<string> build_params() {
         auto params = ::android::getAidlHalInstanceNames(IKeyMintDevice::descriptor);
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index 62f22bb..767de2b 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -1018,6 +1018,37 @@
 }
 
 /*
+ * NewKeyGenerationTest.RsaWithMissingValidity
+ *
+ * Verifies that keymint returns an error while generating asymmetric key
+ * without providing NOT_BEFORE and NOT_AFTER parameters.
+ */
+TEST_P(NewKeyGenerationTest, RsaWithMissingValidity) {
+    // Per RFC 5280 4.1.2.5, an undefined expiration (not-after) field should be set to
+    // GeneralizedTime 999912312359559, which is 253402300799000 ms from Jan 1, 1970.
+    constexpr uint64_t kUndefinedExpirationDateTime = 253402300799000;
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+    ASSERT_EQ(ErrorCode::MISSING_NOT_BEFORE,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaSigningKey(2048, 65537)
+                                  .Digest(Digest::NONE)
+                                  .Padding(PaddingMode::NONE)
+                                  .Authorization(TAG_CERTIFICATE_NOT_AFTER,
+                                                 kUndefinedExpirationDateTime),
+                          &key_blob, &key_characteristics));
+
+    ASSERT_EQ(ErrorCode::MISSING_NOT_AFTER,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaSigningKey(2048, 65537)
+                                  .Digest(Digest::NONE)
+                                  .Padding(PaddingMode::NONE)
+                                  .Authorization(TAG_CERTIFICATE_NOT_BEFORE, 0),
+                          &key_blob, &key_characteristics));
+}
+
+/*
  * NewKeyGenerationTest.RsaWithAttestation
  *
  * Verifies that keymint can generate all required RSA key sizes with attestation, and that the
@@ -1036,18 +1067,21 @@
     for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
         vector<uint8_t> key_blob;
         vector<KeyCharacteristics> key_characteristics;
-        ASSERT_EQ(ErrorCode::OK,
-                  GenerateKey(AuthorizationSetBuilder()
-                                      .RsaSigningKey(key_size, 65537)
-                                      .Digest(Digest::NONE)
-                                      .Padding(PaddingMode::NONE)
-                                      .AttestationChallenge(challenge)
-                                      .AttestationApplicationId(app_id)
-                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                      .SetDefaultValidity(),
-                              &key_blob, &key_characteristics));
+        auto result = GenerateKey(AuthorizationSetBuilder()
+                                          .RsaSigningKey(key_size, 65537)
+                                          .Digest(Digest::NONE)
+                                          .Padding(PaddingMode::NONE)
+                                          .AttestationChallenge(challenge)
+                                          .AttestationApplicationId(app_id)
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .SetDefaultValidity(),
+                                  &key_blob, &key_characteristics);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
 
         ASSERT_GT(key_blob.size(), 0U);
         CheckBaseParams(key_characteristics);
@@ -1169,17 +1203,21 @@
 
     vector<uint8_t> key_blob;
     vector<KeyCharacteristics> key_characteristics;
-    ASSERT_EQ(ErrorCode::OK,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .RsaEncryptionKey(key_size, 65537)
-                                  .Padding(PaddingMode::NONE)
-                                  .AttestationChallenge(challenge)
-                                  .AttestationApplicationId(app_id)
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                  .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                  .SetDefaultValidity(),
-                          &key_blob, &key_characteristics));
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .RsaEncryptionKey(key_size, 65537)
+                                      .Padding(PaddingMode::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .AttestationApplicationId(app_id)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics);
+    // Strongbox may not support factory provisioned attestation key.
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+    }
+    ASSERT_EQ(ErrorCode::OK, result);
 
     ASSERT_GT(key_blob.size(), 0U);
     AuthorizationSet auths;
@@ -1281,15 +1319,19 @@
     vector<uint8_t> key_blob;
     vector<KeyCharacteristics> key_characteristics;
 
-    ASSERT_EQ(ErrorCode::ATTESTATION_APPLICATION_ID_MISSING,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .RsaSigningKey(2048, 65537)
-                                  .Digest(Digest::NONE)
-                                  .Padding(PaddingMode::NONE)
-                                  .AttestationChallenge(challenge)
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .SetDefaultValidity(),
-                          &key_blob, &key_characteristics));
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .RsaSigningKey(2048, 65537)
+                                      .Digest(Digest::NONE)
+                                      .Padding(PaddingMode::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics);
+    // Strongbox may not support factory provisioned attestation key.
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+    }
+    ASSERT_EQ(ErrorCode::ATTESTATION_APPLICATION_ID_MISSING, result);
 }
 
 /*
@@ -1399,19 +1441,23 @@
     for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
         vector<uint8_t> key_blob;
         vector<KeyCharacteristics> key_characteristics;
-        ASSERT_EQ(ErrorCode::OK,
-                  GenerateKey(AuthorizationSetBuilder()
-                                      .RsaSigningKey(key_size, 65537)
-                                      .Digest(Digest::NONE)
-                                      .Padding(PaddingMode::NONE)
-                                      .AttestationChallenge(challenge)
-                                      .AttestationApplicationId(app_id)
-                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                      .Authorization(TAG_USAGE_COUNT_LIMIT, 1)
-                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                      .SetDefaultValidity(),
-                              &key_blob, &key_characteristics));
+        auto result = GenerateKey(AuthorizationSetBuilder()
+                                          .RsaSigningKey(key_size, 65537)
+                                          .Digest(Digest::NONE)
+                                          .Padding(PaddingMode::NONE)
+                                          .AttestationChallenge(challenge)
+                                          .AttestationApplicationId(app_id)
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .Authorization(TAG_USAGE_COUNT_LIMIT, 1)
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .SetDefaultValidity(),
+                                  &key_blob, &key_characteristics);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
+        ASSERT_EQ(ErrorCode::OK, result);
 
         ASSERT_GT(key_blob.size(), 0U);
         CheckBaseParams(key_characteristics);
@@ -1583,6 +1629,35 @@
 }
 
 /*
+ * NewKeyGenerationTest.EcdsaWithMissingValidity
+ *
+ * Verifies that keymint returns an error while generating asymmetric key
+ * without providing NOT_BEFORE and NOT_AFTER parameters.
+ */
+TEST_P(NewKeyGenerationTest, EcdsaWithMissingValidity) {
+    // Per RFC 5280 4.1.2.5, an undefined expiration (not-after) field should be set to
+    // GeneralizedTime 999912312359559, which is 253402300799000 ms from Jan 1, 1970.
+    constexpr uint64_t kUndefinedExpirationDateTime = 253402300799000;
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+    ASSERT_EQ(ErrorCode::MISSING_NOT_BEFORE,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .EcdsaSigningKey(EcCurve::P_256)
+                                  .Digest(Digest::NONE)
+                                  .Authorization(TAG_CERTIFICATE_NOT_AFTER,
+                                                 kUndefinedExpirationDateTime),
+                          &key_blob, &key_characteristics));
+
+    ASSERT_EQ(ErrorCode::MISSING_NOT_AFTER,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .EcdsaSigningKey(EcCurve::P_256)
+                                  .Digest(Digest::NONE)
+                                  .Authorization(TAG_CERTIFICATE_NOT_BEFORE, 0),
+                          &key_blob, &key_characteristics));
+}
+
+/*
  * NewKeyGenerationTest.EcdsaAttestation
  *
  * Verifies that for all Ecdsa key sizes, if challenge and app id is provided,
@@ -1601,17 +1676,21 @@
     for (auto curve : ValidCurves()) {
         vector<uint8_t> key_blob;
         vector<KeyCharacteristics> key_characteristics;
-        ASSERT_EQ(ErrorCode::OK,
-                  GenerateKey(AuthorizationSetBuilder()
-                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                      .EcdsaSigningKey(curve)
-                                      .Digest(Digest::NONE)
-                                      .AttestationChallenge(challenge)
-                                      .AttestationApplicationId(app_id)
-                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
-                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
-                                      .SetDefaultValidity(),
-                              &key_blob, &key_characteristics));
+        auto result = GenerateKey(AuthorizationSetBuilder()
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .EcdsaSigningKey(curve)
+                                          .Digest(Digest::NONE)
+                                          .AttestationChallenge(challenge)
+                                          .AttestationApplicationId(app_id)
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .SetDefaultValidity(),
+                                  &key_blob, &key_characteristics);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
+        ASSERT_EQ(ErrorCode::OK, result);
         ASSERT_GT(key_blob.size(), 0U);
         CheckBaseParams(key_characteristics);
         CheckCharacteristics(key_blob, key_characteristics);
@@ -1745,6 +1824,10 @@
             // Tag not required to be supported by all KeyMint implementations.
             continue;
         }
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
         ASSERT_EQ(result, ErrorCode::OK);
         ASSERT_GT(key_blob.size(), 0U);
 
@@ -1840,6 +1923,10 @@
         AuthorizationSetBuilder builder = base_builder;
         builder.push_back(tag);
         auto result = GenerateKey(builder, &key_blob, &key_characteristics);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
         if (result == ErrorCode::CANNOT_ATTEST_IDS) {
             // Device ID attestation is optional; KeyMint may not support it at all.
             continue;
@@ -1997,6 +2084,10 @@
                                       .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
                                       .SetDefaultValidity(),
                               &key_blob, &key_characteristics);
+    // Strongbox may not support factory provisioned attestation key.
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+    }
     ASSERT_EQ(result, ErrorCode::OK);
     ASSERT_GT(key_blob.size(), 0U);
 
@@ -2076,13 +2167,17 @@
     vector<uint8_t> key_blob;
     vector<KeyCharacteristics> key_characteristics;
 
-    ASSERT_EQ(ErrorCode::ATTESTATION_APPLICATION_ID_MISSING,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .EcdsaSigningKey(EcCurve::P_256)
-                                  .Digest(Digest::NONE)
-                                  .AttestationChallenge(challenge)
-                                  .SetDefaultValidity(),
-                          &key_blob, &key_characteristics));
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .EcdsaSigningKey(EcCurve::P_256)
+                                      .Digest(Digest::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics);
+    // Strongbox may not support factory provisioned attestation key.
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+    }
+    ASSERT_EQ(ErrorCode::ATTESTATION_APPLICATION_ID_MISSING, result);
 }
 
 /*
@@ -2139,14 +2234,19 @@
         const string app_id(length, 'a');
         vector<uint8_t> key_blob;
         vector<KeyCharacteristics> key_characteristics;
-        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
-                                                     .Authorization(TAG_NO_AUTH_REQUIRED)
-                                                     .EcdsaSigningKey(EcCurve::P_256)
-                                                     .Digest(Digest::NONE)
-                                                     .AttestationChallenge(challenge)
-                                                     .AttestationApplicationId(app_id)
-                                                     .SetDefaultValidity(),
-                                             &key_blob, &key_characteristics));
+        auto result = GenerateKey(AuthorizationSetBuilder()
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .EcdsaSigningKey(EcCurve::P_256)
+                                          .Digest(Digest::NONE)
+                                          .AttestationChallenge(challenge)
+                                          .AttestationApplicationId(app_id)
+                                          .SetDefaultValidity(),
+                                  &key_blob, &key_characteristics);
+        // Strongbox may not support factory provisioned attestation key.
+        if (SecLevel() == SecurityLevel::STRONGBOX) {
+            if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
+        }
+        ASSERT_EQ(ErrorCode::OK, result);
         ASSERT_GT(key_blob.size(), 0U);
         CheckBaseParams(key_characteristics);
         CheckCharacteristics(key_blob, key_characteristics);
@@ -4646,7 +4746,7 @@
  * Verifies that raw RSA decryption works.
  */
 TEST_P(EncryptionOperationsTest, RsaNoPaddingSuccess) {
-    for (uint64_t exponent : {3, 65537}) {
+    for (uint64_t exponent : ValidExponents()) {
         ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
                                                      .Authorization(TAG_NO_AUTH_REQUIRED)
                                                      .RsaEncryptionKey(2048, exponent)
@@ -7209,7 +7309,7 @@
     size_t i;
 
     for (i = 0; i < max_operations; i++) {
-        result = Begin(KeyPurpose::ENCRYPT, key_blob_, params, &out_params, op_handles[i]);
+        result = Begin(KeyPurpose::DECRYPT, key_blob_, params, &out_params, op_handles[i]);
         if (ErrorCode::OK != result) {
             break;
         }
@@ -7217,12 +7317,12 @@
     EXPECT_EQ(ErrorCode::TOO_MANY_OPERATIONS, result);
     // Try again just in case there's a weird overflow bug
     EXPECT_EQ(ErrorCode::TOO_MANY_OPERATIONS,
-              Begin(KeyPurpose::ENCRYPT, key_blob_, params, &out_params));
+              Begin(KeyPurpose::DECRYPT, key_blob_, params, &out_params));
     for (size_t j = 0; j < i; j++) {
         EXPECT_EQ(ErrorCode::OK, Abort(op_handles[j]))
                 << "Aboort failed for i = " << j << std::endl;
     }
-    EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, key_blob_, params, &out_params));
+    EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, key_blob_, params, &out_params));
     AbortIfNeeded();
 }
 
@@ -7611,14 +7711,23 @@
             });
 
     for (const auto& keyData : {aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData}) {
+        // Strongbox may not support factory attestation. Key creation might fail with
+        // ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED
+        if (SecLevel() == SecurityLevel::STRONGBOX && keyData.blob.size() == 0U) {
+            continue;
+        }
         ASSERT_GT(keyData.blob.size(), 0U);
         AuthorizationSet crypto_params = SecLevelAuthorizations(keyData.characteristics);
         EXPECT_TRUE(crypto_params.Contains(TAG_EARLY_BOOT_ONLY)) << crypto_params;
     }
     CheckedDeleteKey(&aesKeyData.blob);
     CheckedDeleteKey(&hmacKeyData.blob);
-    CheckedDeleteKey(&rsaKeyData.blob);
-    CheckedDeleteKey(&ecdsaKeyData.blob);
+    if (rsaKeyData.blob.size() != 0U) {
+        CheckedDeleteKey(&rsaKeyData.blob);
+    }
+    if (ecdsaKeyData.blob.size() != 0U) {
+        CheckedDeleteKey(&ecdsaKeyData.blob);
+    }
 }
 
 /*
diff --git a/security/keymint/aidl/vts/functional/SecureElementProvisioningTest.cpp b/security/keymint/aidl/vts/functional/SecureElementProvisioningTest.cpp
new file mode 100644
index 0000000..83ee188
--- /dev/null
+++ b/security/keymint/aidl/vts/functional/SecureElementProvisioningTest.cpp
@@ -0,0 +1,255 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "keymint_2_se_provisioning_test"
+
+#include <map>
+#include <memory>
+#include <vector>
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+
+#include <cppbor_parse.h>
+#include <keymaster/cppcose/cppcose.h>
+#include <keymint_support/key_param_output.h>
+
+#include "KeyMintAidlTestBase.h"
+
+namespace aidl::android::hardware::security::keymint::test {
+
+using std::array;
+using std::map;
+using std::shared_ptr;
+using std::vector;
+
+class SecureElementProvisioningTest : public testing::Test {
+  protected:
+    static void SetUpTestSuite() {
+        auto params = ::android::getAidlHalInstanceNames(IKeyMintDevice::descriptor);
+        for (auto& param : params) {
+            ASSERT_TRUE(AServiceManager_isDeclared(param.c_str()))
+                    << "IKeyMintDevice instance " << param << " found but not declared.";
+            ::ndk::SpAIBinder binder(AServiceManager_waitForService(param.c_str()));
+            auto keymint = IKeyMintDevice::fromBinder(binder);
+            ASSERT_NE(keymint, nullptr) << "Failed to get IKeyMintDevice instance " << param;
+
+            KeyMintHardwareInfo info;
+            ASSERT_TRUE(keymint->getHardwareInfo(&info).isOk());
+            ASSERT_EQ(keymints_.count(info.securityLevel), 0)
+                    << "There must be exactly one IKeyMintDevice with security level "
+                    << info.securityLevel;
+
+            keymints_[info.securityLevel] = std::move(keymint);
+        }
+    }
+
+    static map<SecurityLevel, shared_ptr<IKeyMintDevice>> keymints_;
+};
+
+map<SecurityLevel, shared_ptr<IKeyMintDevice>> SecureElementProvisioningTest::keymints_;
+
+TEST_F(SecureElementProvisioningTest, ValidConfigurations) {
+    // TEE is required
+    ASSERT_EQ(keymints_.count(SecurityLevel::TRUSTED_ENVIRONMENT), 1);
+    // StrongBox is optional
+    ASSERT_LE(keymints_.count(SecurityLevel::STRONGBOX), 1);
+}
+
+TEST_F(SecureElementProvisioningTest, TeeOnly) {
+    ASSERT_EQ(keymints_.count(SecurityLevel::TRUSTED_ENVIRONMENT), 1);
+    auto tee = keymints_.find(SecurityLevel::TRUSTED_ENVIRONMENT)->second;
+    ASSERT_NE(tee, nullptr);
+
+    array<uint8_t, 16> challenge1 = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+    array<uint8_t, 16> challenge2 = {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+    vector<uint8_t> rootOfTrust1;
+    Status result = tee->getRootOfTrust(challenge1, &rootOfTrust1);
+
+    // TODO: Remove the next line to require TEEs to succeed.
+    if (!result.isOk()) return;
+
+    ASSERT_TRUE(result.isOk());
+
+    // TODO:  Parse and validate rootOfTrust1 here
+
+    vector<uint8_t> rootOfTrust2;
+    result = tee->getRootOfTrust(challenge2, &rootOfTrust2);
+    ASSERT_TRUE(result.isOk());
+
+    // TODO:  Parse and validate rootOfTrust2 here
+
+    ASSERT_NE(rootOfTrust1, rootOfTrust2);
+
+    vector<uint8_t> rootOfTrust3;
+    result = tee->getRootOfTrust(challenge1, &rootOfTrust3);
+    ASSERT_TRUE(result.isOk());
+
+    ASSERT_EQ(rootOfTrust1, rootOfTrust3);
+
+    // TODO:  Parse and validate rootOfTrust3 here
+}
+
+TEST_F(SecureElementProvisioningTest, TeeDoesNotImplementStrongBoxMethods) {
+    ASSERT_EQ(keymints_.count(SecurityLevel::TRUSTED_ENVIRONMENT), 1);
+    auto tee = keymints_.find(SecurityLevel::TRUSTED_ENVIRONMENT)->second;
+    ASSERT_NE(tee, nullptr);
+
+    array<uint8_t, 16> challenge;
+    Status result = tee->getRootOfTrustChallenge(&challenge);
+    ASSERT_FALSE(result.isOk());
+    ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+    ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()), ErrorCode::UNIMPLEMENTED);
+
+    result = tee->sendRootOfTrust({});
+    ASSERT_FALSE(result.isOk());
+    ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+    ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()), ErrorCode::UNIMPLEMENTED);
+}
+
+TEST_F(SecureElementProvisioningTest, StrongBoxDoesNotImplementTeeMethods) {
+    if (keymints_.count(SecurityLevel::STRONGBOX) == 0) return;
+
+    auto sb = keymints_.find(SecurityLevel::STRONGBOX)->second;
+    ASSERT_NE(sb, nullptr);
+
+    vector<uint8_t> rootOfTrust;
+    Status result = sb->getRootOfTrust({}, &rootOfTrust);
+    ASSERT_FALSE(result.isOk());
+    ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+    ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()), ErrorCode::UNIMPLEMENTED);
+}
+
+TEST_F(SecureElementProvisioningTest, UnimplementedTest) {
+    if (keymints_.count(SecurityLevel::STRONGBOX) == 0) return;  // Need a StrongBox to provision.
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::TRUSTED_ENVIRONMENT), 1);
+    auto tee = keymints_.find(SecurityLevel::TRUSTED_ENVIRONMENT)->second;
+    ASSERT_NE(tee, nullptr);
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::STRONGBOX), 1);
+    auto sb = keymints_.find(SecurityLevel::STRONGBOX)->second;
+    ASSERT_NE(sb, nullptr);
+
+    array<uint8_t, 16> challenge;
+    Status result = sb->getRootOfTrustChallenge(&challenge);
+    if (!result.isOk()) {
+        // Strongbox does not have to implement this feature if it has uses an alternative mechanism
+        // to provision the root of trust.  In that case it MUST return UNIMPLEMENTED, both from
+        // getRootOfTrustChallenge() and from sendRootOfTrust().
+        ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+        ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()),
+                  ErrorCode::UNIMPLEMENTED);
+
+        result = sb->sendRootOfTrust({});
+        ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+        ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()),
+                  ErrorCode::UNIMPLEMENTED);
+
+        SUCCEED() << "This Strongbox implementation does not use late root of trust delivery.";
+        return;
+    }
+}
+
+TEST_F(SecureElementProvisioningTest, ChallengeQualityTest) {
+    if (keymints_.count(SecurityLevel::STRONGBOX) == 0) return;  // Need a StrongBox to provision.
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::STRONGBOX), 1);
+    auto sb = keymints_.find(SecurityLevel::STRONGBOX)->second;
+    ASSERT_NE(sb, nullptr);
+
+    array<uint8_t, 16> challenge1;
+    Status result = sb->getRootOfTrustChallenge(&challenge1);
+    if (!result.isOk()) return;
+
+    array<uint8_t, 16> challenge2;
+    result = sb->getRootOfTrustChallenge(&challenge2);
+    ASSERT_TRUE(result.isOk());
+    ASSERT_NE(challenge1, challenge2);
+
+    // TODO: When we add entropy testing in other relevant places in these tests, add it here, too,
+    // to verify that challenges appear to have adequate entropy.
+}
+
+TEST_F(SecureElementProvisioningTest, ProvisioningTest) {
+    if (keymints_.count(SecurityLevel::STRONGBOX) == 0) return;  // Need a StrongBox to provision.
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::TRUSTED_ENVIRONMENT), 1);
+    auto tee = keymints_.find(SecurityLevel::TRUSTED_ENVIRONMENT)->second;
+    ASSERT_NE(tee, nullptr);
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::STRONGBOX), 1);
+    auto sb = keymints_.find(SecurityLevel::STRONGBOX)->second;
+    ASSERT_NE(sb, nullptr);
+
+    array<uint8_t, 16> challenge;
+    Status result = sb->getRootOfTrustChallenge(&challenge);
+    if (!result.isOk()) return;
+
+    vector<uint8_t> rootOfTrust;
+    result = tee->getRootOfTrust(challenge, &rootOfTrust);
+    ASSERT_TRUE(result.isOk());
+
+    // TODO: Verify COSE_Mac0 structure and content here.
+
+    result = sb->sendRootOfTrust(rootOfTrust);
+    ASSERT_TRUE(result.isOk());
+
+    // Sending again must fail, because a new challenge is required.
+    result = sb->sendRootOfTrust(rootOfTrust);
+    ASSERT_FALSE(result.isOk());
+}
+
+TEST_F(SecureElementProvisioningTest, InvalidProvisioningTest) {
+    if (keymints_.count(SecurityLevel::STRONGBOX) == 0) return;  // Need a StrongBox to provision.
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::TRUSTED_ENVIRONMENT), 1);
+    auto tee = keymints_.find(SecurityLevel::TRUSTED_ENVIRONMENT)->second;
+    ASSERT_NE(tee, nullptr);
+
+    ASSERT_EQ(keymints_.count(SecurityLevel::STRONGBOX), 1);
+    auto sb = keymints_.find(SecurityLevel::STRONGBOX)->second;
+    ASSERT_NE(sb, nullptr);
+
+    array<uint8_t, 16> challenge;
+    Status result = sb->getRootOfTrustChallenge(&challenge);
+    if (!result.isOk()) return;
+
+    result = sb->sendRootOfTrust({});
+    ASSERT_FALSE(result.isOk());
+    ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+    ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()),
+              ErrorCode::VERIFICATION_FAILED);
+
+    vector<uint8_t> rootOfTrust;
+    result = tee->getRootOfTrust(challenge, &rootOfTrust);
+    ASSERT_TRUE(result.isOk());
+
+    vector<uint8_t> corruptedRootOfTrust = rootOfTrust;
+    corruptedRootOfTrust[corruptedRootOfTrust.size() / 2]++;
+    result = sb->sendRootOfTrust(corruptedRootOfTrust);
+    ASSERT_FALSE(result.isOk());
+    ASSERT_EQ(result.getExceptionCode(), EX_SERVICE_SPECIFIC);
+    ASSERT_EQ(static_cast<ErrorCode>(result.getServiceSpecificError()),
+              ErrorCode::VERIFICATION_FAILED);
+
+    // Now try the correct RoT
+    result = sb->sendRootOfTrust(rootOfTrust);
+    ASSERT_TRUE(result.isOk());
+}
+
+}  // namespace aidl::android::hardware::security::keymint::test
diff --git a/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp b/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
index f154d03..2e90e78 100644
--- a/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
+++ b/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
@@ -57,6 +57,22 @@
 using namespace remote_prov;
 using namespace keymaster;
 
+std::set<std::string> getAllowedVbStates() {
+    return {"green", "yellow", "orange"};
+}
+
+std::set<std::string> getAllowedBootloaderStates() {
+    return {"locked", "unlocked"};
+}
+
+std::set<std::string> getAllowedSecurityLevels() {
+    return {"tee", "strongbox"};
+}
+
+std::set<std::string> getAllowedAttIdStates() {
+    return {"locked", "open"};
+}
+
 bytevec string_to_bytevec(const char* s) {
     const uint8_t* p = reinterpret_cast<const uint8_t*>(s);
     return bytevec(p, p + strlen(s));
@@ -417,6 +433,8 @@
         ASSERT_TRUE(deviceInfoMap) << "Failed to parse deviceInfo: " << deviceInfoErrMsg;
         ASSERT_TRUE(deviceInfoMap->asMap());
 
+        checkDeviceInfo(deviceInfoMap->asMap(), deviceInfo.deviceInfo);
+
         auto& signingKey = bccContents->back().pubKey;
         auto macKey = verifyAndParseCoseSign1(signedMac->asArray(), signingKey,
                                               cppbor::Array()  // SignedMacAad
@@ -443,6 +461,80 @@
         }
     }
 
+    void checkType(const cppbor::Map* devInfo, uint8_t majorType, std::string entryName) {
+        const auto& val = devInfo->get(entryName);
+        ASSERT_TRUE(val) << entryName << " does not exist";
+        ASSERT_EQ(val->type(), majorType) << entryName << " has the wrong type.";
+        switch (majorType) {
+            case cppbor::TSTR:
+                ASSERT_GT(val->asTstr()->value().size(), 0);
+                break;
+            case cppbor::BSTR:
+                ASSERT_GT(val->asBstr()->value().size(), 0);
+                break;
+            default:
+                break;
+        }
+    }
+
+    void checkDeviceInfo(const cppbor::Map* deviceInfo, bytevec deviceInfoBytes) {
+        const auto& version = deviceInfo->get("version");
+        ASSERT_TRUE(version);
+        ASSERT_TRUE(version->asUint());
+        RpcHardwareInfo info;
+        provisionable_->getHardwareInfo(&info);
+        ASSERT_EQ(version->asUint()->value(), info.versionNumber);
+        std::set<std::string> allowList;
+        switch (version->asUint()->value()) {
+            // These fields became mandated in version 2.
+            case 2:
+                checkType(deviceInfo, cppbor::TSTR, "brand");
+                checkType(deviceInfo, cppbor::TSTR, "manufacturer");
+                checkType(deviceInfo, cppbor::TSTR, "product");
+                checkType(deviceInfo, cppbor::TSTR, "model");
+                checkType(deviceInfo, cppbor::TSTR, "device");
+                // TODO: Refactor the KeyMint code that validates these fields and include it here.
+                checkType(deviceInfo, cppbor::TSTR, "vb_state");
+                allowList = getAllowedVbStates();
+                ASSERT_NE(allowList.find(deviceInfo->get("vb_state")->asTstr()->value()),
+                          allowList.end());
+                checkType(deviceInfo, cppbor::TSTR, "bootloader_state");
+                allowList = getAllowedBootloaderStates();
+                ASSERT_NE(allowList.find(deviceInfo->get("bootloader_state")->asTstr()->value()),
+                          allowList.end());
+                checkType(deviceInfo, cppbor::BSTR, "vbmeta_digest");
+                checkType(deviceInfo, cppbor::UINT, "system_patch_level");
+                checkType(deviceInfo, cppbor::UINT, "boot_patch_level");
+                checkType(deviceInfo, cppbor::UINT, "vendor_patch_level");
+                checkType(deviceInfo, cppbor::UINT, "fused");
+                ASSERT_LT(deviceInfo->get("fused")->asUint()->value(), 2);  // Must be 0 or 1.
+                checkType(deviceInfo, cppbor::TSTR, "security_level");
+                allowList = getAllowedSecurityLevels();
+                ASSERT_NE(allowList.find(deviceInfo->get("security_level")->asTstr()->value()),
+                          allowList.end());
+                if (deviceInfo->get("security_level")->asTstr()->value() == "tee") {
+                    checkType(deviceInfo, cppbor::TSTR, "os_version");
+                }
+                break;
+            case 1:
+                checkType(deviceInfo, cppbor::TSTR, "security_level");
+                allowList = getAllowedSecurityLevels();
+                ASSERT_NE(allowList.find(deviceInfo->get("security_level")->asTstr()->value()),
+                          allowList.end());
+                if (version->asUint()->value() == 1) {
+                    checkType(deviceInfo, cppbor::TSTR, "att_id_state");
+                    allowList = getAllowedAttIdStates();
+                    ASSERT_NE(allowList.find(deviceInfo->get("att_id_state")->asTstr()->value()),
+                              allowList.end());
+                }
+                break;
+            default:
+                FAIL() << "Unrecognized version: " << version->asUint()->value();
+        }
+        ASSERT_EQ(deviceInfo->clone()->asMap()->canonicalize().encode(), deviceInfoBytes)
+                << "DeviceInfo ordering is non-canonical.";
+    }
+
     bytevec eekId_;
     size_t testEekLength_;
     EekChain testEekChain_;
diff --git a/sensors/1.0/vts/functional/Android.bp b/sensors/1.0/vts/functional/Android.bp
index 9a92fb3..274cfa7 100644
--- a/sensors/1.0/vts/functional/Android.bp
+++ b/sensors/1.0/vts/functional/Android.bp
@@ -27,6 +27,9 @@
     name: "VtsHalSensorsV1_0TargetTest",
     cflags: ["-DLOG_TAG=\"sensors_hidl_hal_test\""],
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "VtsHalSensorsV1_0TargetTest.cpp",
+    ],
     srcs: [
         "SensorsHidlEnvironmentV1_0.cpp",
         "VtsHalSensorsV1_0TargetTest.cpp",
diff --git a/sensors/2.0/vts/functional/Android.bp b/sensors/2.0/vts/functional/Android.bp
index cf7c9fa..c4ec866 100644
--- a/sensors/2.0/vts/functional/Android.bp
+++ b/sensors/2.0/vts/functional/Android.bp
@@ -27,6 +27,9 @@
     name: "VtsHalSensorsV2_0TargetTest",
     cflags: ["-DLOG_TAG=\"sensors_hidl_hal_test\""],
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "VtsHalSensorsV2_0TargetTest.cpp",
+    ],
     srcs: [
         "VtsHalSensorsV2_0TargetTest.cpp",
     ],
diff --git a/sensors/common/default/2.X/Sensor.cpp b/sensors/common/default/2.X/Sensor.cpp
index 23c9803..fd701fd 100644
--- a/sensors/common/default/2.X/Sensor.cpp
+++ b/sensors/common/default/2.X/Sensor.cpp
@@ -59,10 +59,10 @@
 }
 
 void Sensor::batch(int64_t samplingPeriodNs) {
-    if (samplingPeriodNs < mSensorInfo.minDelay * 1000ll) {
-        samplingPeriodNs = mSensorInfo.minDelay * 1000ll;
-    } else if (samplingPeriodNs > mSensorInfo.maxDelay * 1000ll) {
-        samplingPeriodNs = mSensorInfo.maxDelay * 1000ll;
+    if (samplingPeriodNs < mSensorInfo.minDelay * 1000LL) {
+        samplingPeriodNs = mSensorInfo.minDelay * 1000LL;
+    } else if (samplingPeriodNs > mSensorInfo.maxDelay * 1000LL) {
+        samplingPeriodNs = mSensorInfo.maxDelay * 1000LL;
     }
 
     if (mSamplingPeriodNs != samplingPeriodNs) {
diff --git a/sensors/common/default/2.X/multihal/tests/Android.bp b/sensors/common/default/2.X/multihal/tests/Android.bp
index d8e7ce6..21d1d77 100644
--- a/sensors/common/default/2.X/multihal/tests/Android.bp
+++ b/sensors/common/default/2.X/multihal/tests/Android.bp
@@ -99,6 +99,9 @@
 
 cc_test {
     name: "android.hardware.sensors@2.X-halproxy-unit-tests",
+    tidy_timeout_srcs: [
+        "HalProxy_test.cpp",
+    ],
     srcs: [
         "HalProxy_test.cpp",
         "ScopedWakelock_test.cpp",
diff --git a/thermal/2.0/vts/functional/Android.bp b/thermal/2.0/vts/functional/Android.bp
index f26c1af..29dffcb 100644
--- a/thermal/2.0/vts/functional/Android.bp
+++ b/thermal/2.0/vts/functional/Android.bp
@@ -26,6 +26,7 @@
 cc_test {
     name: "VtsHalThermalV2_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: ["VtsHalThermalV2_0TargetTest.cpp"],
     srcs: ["VtsHalThermalV2_0TargetTest.cpp"],
     static_libs: [
         "android.hardware.thermal@1.0",
diff --git a/tv/Android.mk b/tv/Android.mk
new file mode 100644
index 0000000..d78614a
--- /dev/null
+++ b/tv/Android.mk
@@ -0,0 +1,2 @@
+$(eval $(call declare-1p-copy-files,hardware/interfaces/tv,tuner_vts_config_1_0.xml))
+$(eval $(call declare-1p-copy-files,hardware/interfaces/tv,tuner_vts_config_1_1.xml))
diff --git a/update-base-files.sh b/update-base-files.sh
index d01847d..bf7f6e4 100755
--- a/update-base-files.sh
+++ b/update-base-files.sh
@@ -45,8 +45,11 @@
          -o $ANDROID_BUILD_TOP/system/media/audio/include/system/audio_common-base.h \
          android.hardware.audio.common@7.0
 hidl-gen $options \
-         -o $ANDROID_BUILD_TOP/system/media/audio/include/system/audio-base.h \
+         -o $ANDROID_BUILD_TOP/system/media/audio/include/system/audio-base-v7.0.h \
          android.hardware.audio@7.0
 hidl-gen $options \
+         -o $ANDROID_BUILD_TOP/system/media/audio/include/system/audio-base-v7.1.h \
+         android.hardware.audio@7.1
+hidl-gen $options \
          -o $ANDROID_BUILD_TOP/system/media/audio/include/system/audio_effect-base.h \
          android.hardware.audio.effect@7.0
diff --git a/vibrator/aidl/OWNERS b/vibrator/aidl/OWNERS
index ae10db6..3982c7b 100644
--- a/vibrator/aidl/OWNERS
+++ b/vibrator/aidl/OWNERS
@@ -1,4 +1,4 @@
 # Bug component: 345036
 include platform/frameworks/base:/services/core/java/com/android/server/vibrator/OWNERS
 chasewu@google.com
-leungv@google.com
+taikuo@google.com
diff --git a/vibrator/aidl/vts/Android.bp b/vibrator/aidl/vts/Android.bp
index 3f328fa..1261870 100644
--- a/vibrator/aidl/vts/Android.bp
+++ b/vibrator/aidl/vts/Android.bp
@@ -13,6 +13,7 @@
         "VtsHalTargetTestDefaults",
         "use_libaidlvintf_gtest_helper_static",
     ],
+    tidy_timeout_srcs: ["VtsHalVibratorTargetTest.cpp"],
     srcs: ["VtsHalVibratorTargetTest.cpp"],
     shared_libs: [
         "libbinder",
diff --git a/wifi/1.0/vts/functional/Android.bp b/wifi/1.0/vts/functional/Android.bp
index 6c0ebf7..ebfa164 100644
--- a/wifi/1.0/vts/functional/Android.bp
+++ b/wifi/1.0/vts/functional/Android.bp
@@ -48,6 +48,9 @@
 cc_test {
     name: "VtsHalWifiV1_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "wifi_chip_hidl_test.cpp",
+    ],
     srcs: [
         "wifi_chip_hidl_test.cpp",
         "wifi_p2p_iface_hidl_test.cpp",
diff --git a/wifi/hostapd/1.3/vts/functional/Android.bp b/wifi/hostapd/1.3/vts/functional/Android.bp
index 6eceadf..78cd4af 100644
--- a/wifi/hostapd/1.3/vts/functional/Android.bp
+++ b/wifi/hostapd/1.3/vts/functional/Android.bp
@@ -26,6 +26,9 @@
 cc_test {
     name: "VtsHalWifiHostapdV1_3TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "hostapd_hidl_test.cpp",
+    ],
     srcs: [
         "hostapd_hidl_test.cpp",
     ],
diff --git a/wifi/supplicant/1.0/vts/functional/Android.bp b/wifi/supplicant/1.0/vts/functional/Android.bp
index 121117c..2d86822 100644
--- a/wifi/supplicant/1.0/vts/functional/Android.bp
+++ b/wifi/supplicant/1.0/vts/functional/Android.bp
@@ -44,6 +44,9 @@
 cc_test {
     name: "VtsHalWifiSupplicantV1_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "supplicant_sta_network_hidl_test.cpp",
+    ],
     srcs: [
         "supplicant_hidl_test.cpp",
         "supplicant_sta_iface_hidl_test.cpp",
@@ -71,6 +74,9 @@
 cc_test {
     name: "VtsHalWifiSupplicantP2pV1_0TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
+    tidy_timeout_srcs: [
+        "supplicant_p2p_iface_hidl_test.cpp",
+    ],
     srcs: [
         "VtsHalWifiSupplicantP2pV1_0TargetTest.cpp",
         "supplicant_p2p_iface_hidl_test.cpp",
diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl
index b4371fd..4b26ac3 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl
@@ -34,11 +34,11 @@
 package android.hardware.wifi.supplicant;
 @VintfStability
 interface ISupplicant {
-  android.hardware.wifi.supplicant.ISupplicantP2pIface addP2pInterface(in String ifName);
-  android.hardware.wifi.supplicant.ISupplicantStaIface addStaInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pIface addP2pInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaIface addStaInterface(in String ifName);
   android.hardware.wifi.supplicant.DebugLevel getDebugLevel();
-  android.hardware.wifi.supplicant.ISupplicantP2pIface getP2pInterface(in String ifName);
-  android.hardware.wifi.supplicant.ISupplicantStaIface getStaInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pIface getP2pInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaIface getStaInterface(in String ifName);
   boolean isDebugShowKeysEnabled();
   boolean isDebugShowTimestampEnabled();
   android.hardware.wifi.supplicant.IfaceInfo[] listInterfaces();
diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
index ca7be73..7876d86 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
@@ -37,7 +37,7 @@
   void addBonjourService(in byte[] query, in byte[] response);
   void addGroup(in boolean persistent, in int persistentNetworkId);
   void addGroupWithConfig(in byte[] ssid, in String pskPassphrase, in boolean persistent, in int freq, in byte[] peerAddress, in boolean joinExistingGroup);
-  android.hardware.wifi.supplicant.ISupplicantP2pNetwork addNetwork();
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pNetwork addNetwork();
   void addUpnpService(in int version, in String serviceName);
   void cancelConnect();
   void cancelServiceDiscovery(in long identifier);
@@ -54,7 +54,7 @@
   boolean getEdmg();
   android.hardware.wifi.supplicant.P2pGroupCapabilityMask getGroupCapability(in byte[] peerAddress);
   String getName();
-  android.hardware.wifi.supplicant.ISupplicantP2pNetwork getNetwork(in int id);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pNetwork getNetwork(in int id);
   byte[] getSsid(in byte[] peerAddress);
   android.hardware.wifi.supplicant.IfaceType getType();
   void invite(in String groupIfName, in byte[] goDeviceAddress, in byte[] peerAddress);
diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
index ca40379..20c52ac 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
@@ -36,7 +36,7 @@
 interface ISupplicantStaIface {
   int addDppPeerUri(in String uri);
   int addExtRadioWork(in String name, in int freqInMhz, in int timeoutInSec);
-  android.hardware.wifi.supplicant.ISupplicantStaNetwork addNetwork();
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaNetwork addNetwork();
   void addRxFilter(in android.hardware.wifi.supplicant.RxFilterType type);
   void cancelWps();
   void disconnect();
@@ -48,7 +48,7 @@
   android.hardware.wifi.supplicant.KeyMgmtMask getKeyMgmtCapabilities();
   byte[] getMacAddress();
   String getName();
-  android.hardware.wifi.supplicant.ISupplicantStaNetwork getNetwork(in int id);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaNetwork getNetwork(in int id);
   android.hardware.wifi.supplicant.IfaceType getType();
   android.hardware.wifi.supplicant.WpaDriverCapabilitiesMask getWpaDriverCapabilities();
   void initiateAnqpQuery(in byte[] macAddress, in android.hardware.wifi.supplicant.AnqpInfoId[] infoElements, in android.hardware.wifi.supplicant.Hs20AnqpSubtypes[] subTypes);
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl
index 2ac1db7..c17289d 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl
@@ -46,8 +46,8 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_EXISTS|
      */
-    ISupplicantP2pIface addP2pInterface(in String ifName);
-    ISupplicantStaIface addStaInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantP2pIface addP2pInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantStaIface addStaInterface(in String ifName);
 
     /**
      * Get the debug level set.
@@ -68,8 +68,8 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_UNKNOWN|
      */
-    ISupplicantP2pIface getP2pInterface(in String ifName);
-    ISupplicantStaIface getStaInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantP2pIface getP2pInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantStaIface getStaInterface(in String ifName);
 
     /**
      * Get whether the keys are shown in the debug logs or not.
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
index 64839e7..5394f49 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
@@ -103,7 +103,7 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
      */
-    ISupplicantP2pNetwork addNetwork();
+    @PropagateAllowBlocking ISupplicantP2pNetwork addNetwork();
 
     /**
      * This command can be used to add a UPNP service.
@@ -320,7 +320,7 @@
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
      *         |SupplicantStatusCode.FAILURE_NETWORK_UNKNOWN|
      */
-    ISupplicantP2pNetwork getNetwork(in int id);
+    @PropagateAllowBlocking ISupplicantP2pNetwork getNetwork(in int id);
 
     /**
      * Gets the operational SSID of the device.
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
index b48fa04..5cb236f 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
@@ -86,7 +86,7 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
      */
-    ISupplicantStaNetwork addNetwork();
+    @PropagateAllowBlocking ISupplicantStaNetwork addNetwork();
 
     /**
      * Send driver command to add the specified RX filter.
@@ -231,7 +231,7 @@
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
      *         |SupplicantStatusCode.FAILURE_NETWORK_UNKNOWN|
      */
-    ISupplicantStaNetwork getNetwork(in int id);
+    @PropagateAllowBlocking ISupplicantStaNetwork getNetwork(in int id);
 
     /**
      * Retrieves the type of the network interface.