diff --git a/audio/aidl/Android.bp b/audio/aidl/Android.bp
index 6a0cfa5..a8846b0 100644
--- a/audio/aidl/Android.bp
+++ b/audio/aidl/Android.bp
@@ -41,7 +41,12 @@
             enabled: true,
         },
         java: {
-            platform_apis: true,
+            sdk_version: "module_current",
+            min_sdk_version: "31",
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.car.framework",
+            ],
         },
         ndk: {
             vndk: {
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 a9797bb..7f4a777 100644
--- a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
@@ -28,8 +28,7 @@
     if (getDeviceName() != DeviceManager::kPrimaryDevice) {
         GTEST_SKIP() << "No primary device on this factory";  // returns
     }
-    EXPECT_TRUE(
-            DeviceManager::getInstance().reset(getFactoryName(), DeviceManager::kPrimaryDevice));
+    EXPECT_TRUE(DeviceManager::getInstance().resetPrimary(getFactoryName()));
 
     // Must use IDevicesFactory directly because DeviceManager always uses
     // the latest interfaces version and corresponding methods for opening
diff --git a/audio/core/all-versions/vts/functional/DeviceManager.h b/audio/core/all-versions/vts/functional/DeviceManager.h
index c8e0167..6bb39ed 100644
--- a/audio/core/all-versions/vts/functional/DeviceManager.h
+++ b/audio/core/all-versions/vts/functional/DeviceManager.h
@@ -96,40 +96,83 @@
     }
 };
 
-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 openDevice(factory, name);
     }
-    using InterfaceManager::reset;
-
-    static constexpr const char* kPrimaryDevice = "primary";
 
     sp<IDevice> get(const std::string& factoryName, const std::string& name) {
-        if (name == kPrimaryDevice) {
-            (void)getPrimary(factoryName);  // for initializing primaryDevice if needed.
-        }
         return InterfaceManager::get(std::make_tuple(factoryName, name));
     }
-    sp<IPrimaryDevice> getPrimary(const std::string& factoryName) {
-        if (primaryDevice == nullptr) {
-            sp<IDevicesFactory> factory = DevicesFactoryManager::getInstance().get(factoryName);
-            primaryDevice = openPrimaryDevice(factory);
-        }
-        return primaryDevice;
-    }
+
     bool reset(const std::string& factoryName, const std::string& name)
             __attribute__((warn_unused_result)) {
-        if (name == kPrimaryDevice) {
-            primaryDevice.clear();
-        }
 #if MAJOR_VERSION <= 5
         return InterfaceManager::reset(std::make_tuple(factoryName, name), true);
 #elif MAJOR_VERSION >= 6
@@ -144,9 +187,6 @@
         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) {
@@ -155,9 +195,7 @@
         sp<IDevice> device;
 #if MAJOR_VERSION == 2
         IDevicesFactory::Device dev = IDevicesFactory::IDevicesFactory::Device(-1);
-        if (name == AUDIO_HARDWARE_MODULE_ID_PRIMARY) {
-            dev = IDevicesFactory::Device::PRIMARY;
-        } else if (name == AUDIO_HARDWARE_MODULE_ID_A2DP) {
+        if (name == AUDIO_HARDWARE_MODULE_ID_A2DP) {
             dev = IDevicesFactory::Device::A2DP;
         } else if (name == AUDIO_HARDWARE_MODULE_ID_USB) {
             dev = IDevicesFactory::Device::USB;
@@ -179,47 +217,62 @@
         }
         return device;
     }
+};
 
-    static sp<IPrimaryDevice> openPrimaryDevice(const sp<IDevicesFactory>& factory) {
-        if (factory == nullptr) return {};
-        Result result;
-        sp<IDevice> device;
-        sp<IPrimaryDevice> primaryDevice;
-#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);
+}  // namespace impl
+
+class DeviceManager {
+  public:
+    static DeviceManager& getInstance() {
+        static DeviceManager instance;
+        return instance;
+    }
+
+    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;
         }
-#elif MAJOR_VERSION >= 4 && (MAJOR_VERSION < 7 || (MAJOR_VERSION == 7 && MINOR_VERSION == 0))
-        auto ret = factory->openPrimaryDevice(returnIn(result, device));
-        if (ret.isOk() && result == Result::OK && device != nullptr) {
-            primaryDevice = IPrimaryDevice::castFrom(device);
-        }
-#elif MAJOR_VERSION == 7 && MINOR_VERSION == 1
-        auto ret = factory->openPrimaryDevice_7_1(returnIn(result, primaryDevice));
-        if (ret.isOk() && result == Result::OK && primaryDevice != nullptr) {
-            auto getDeviceRet = primaryDevice->getDevice();
-            if (getDeviceRet.isOk()) {
-                device = getDeviceRet;
-            } else {
-                primaryDevice.clear();
-                ALOGW("Primary device can not downcast, transaction: %s, primary %p",
-                      getDeviceRet.description().c_str(), primaryDevice.get());
-                return {};
-            }
-        }
-#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());
-            return {};
-        }
-        return primaryDevice;
+        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:
-    // There can only be one primary device across all HAL modules.
-    // A reference to a complete interface is used because in V7.1 IDevice can not
-    // be upcasted to IPrimaryDevice.
-    sp<IPrimaryDevice> primaryDevice;
+    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;
+        }
+#else
+        return primary;
+#endif
+    }
+
+    impl::PrimaryDeviceManager mPrimary;
+    impl::RegularDeviceManager mDevices;
 };
diff --git a/automotive/audiocontrol/aidl/Android.bp b/automotive/audiocontrol/aidl/Android.bp
index 5e69429..890d7a0 100644
--- a/automotive/audiocontrol/aidl/Android.bp
+++ b/automotive/audiocontrol/aidl/Android.bp
@@ -13,6 +13,10 @@
     name: "android.hardware.automotive.audiocontrol",
     vendor_available: true,
     srcs: ["android/hardware/automotive/audiocontrol/*.aidl"],
+    imports: [
+        "android.hardware.audio.common",
+        "android.media.audio.common.types",
+    ],
     stability: "vintf",
     backend: {
         java: {
@@ -24,5 +28,7 @@
             ],
         },
     },
-    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 87%
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..91ce035 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;
+@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..68bfeab
--- /dev/null
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/AudioGainConfigInfo.aidl
@@ -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.
+ */
+
+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.
+ */
+@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..513af47 100644
--- a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/DuckingInfo.aidl
@@ -14,41 +14,51 @@
  * limitations under the License.
  */
 
- package android.hardware.automotive.audiocontrol;
+package android.hardware.automotive.audiocontrol;
 
- /**
-  * The current ducking information for a single audio zone.
-  *
-  * <p>This includes devices to duck, as well as unduck based on the contents of a previous
-  * {@link DuckingInfo}. Additionally, the current usages holding focus in the specified zone are
-  * included, which were used to determine which addresses to duck.
-  */
- @VintfStability
- parcelable DuckingInfo {
-     /**
-      * ID of the associated audio zone
-      */
-     int zoneId;
+import android.hardware.audio.common.PlaybackTrackMetadata;
 
-     /**
-      * List of addresses for audio output devices that should be ducked.
-      *
-      * <p>The provided address strings are defined in audio_policy_configuration.xml.
-      */
-     String[] deviceAddressesToDuck;
+/**
+ * The current ducking information for a single audio zone.
+ *
+ * <p>This includes devices to duck, as well as unduck based on the contents of a previous
+ * {@link DuckingInfo}. Additionally, the current usages holding focus in the specified zone are
+ * included, which were used to determine which addresses to duck.
+ */
+@VintfStability
+parcelable DuckingInfo {
+    /**
+     * ID of the associated audio zone
+     */
+    int zoneId;
 
-     /**
-      * List of addresses for audio output devices that were previously be ducked and should now be
-      * unducked.
-      *
-      * <p>The provided address strings are defined in audio_policy_configuration.xml.
-      */
-     String[] deviceAddressesToUnduck;
+    /**
+     * List of addresses for audio output devices that should be ducked.
+     *
+     * <p>The provided address strings are defined in audio_policy_configuration.xml.
+     */
+    String[] deviceAddressesToDuck;
 
-     /**
-      * List of usages currently holding focus for this audio zone.
-      *
-      * <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 addresses for audio output devices that were previously be ducked and should now be
+     * unducked.
+     *
+     * <p>The provided address strings are defined in audio_policy_configuration.xml.
+     */
+    String[] deviceAddressesToUnduck;
+
+    /**
+     * 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;
+
+    /**
+     *  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..0ffcd5e 100644
--- a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioControl.aidl
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IAudioControl.aidl
@@ -16,10 +16,43 @@
 
 package android.hardware.automotive.audiocontrol;
 
+/**
+ * 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;
 import android.hardware.automotive.audiocontrol.AudioFocusChange;
+import android.hardware.automotive.audiocontrol.AudioGainConfigInfo;
 import android.hardware.automotive.audiocontrol.DuckingInfo;
-import android.hardware.automotive.audiocontrol.MutingInfo;
+import android.hardware.automotive.audiocontrol.IAudioGainCallback;
 import android.hardware.automotive.audiocontrol.IFocusListener;
+import android.hardware.automotive.audiocontrol.MutingInfo;
+import android.hardware.automotive.audiocontrol.Reasons;
 
 /**
  * Interacts with the car's audio subsystem to manage audio sources and volumes
@@ -36,8 +69,12 @@
      * 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.
      */
@@ -52,19 +89,19 @@
      * @param duckingInfos an array of {@link DuckingInfo} objects for the audio zones where audio
      * focus has changed.
      */
-     oneway void onDevicesToDuckChange(in DuckingInfo[] duckingInfos);
+    oneway void onDevicesToDuckChange(in DuckingInfo[] duckingInfos);
 
-     /**
-      * Notifies HAL of changes in output devices that the HAL should apply muting to.
-      *
-      * This will be called in response to changes in audio mute state for each volume group
-      * and will include a {@link MutingInfo} object per audio zone that experienced a mute state
-      * event.
-      *
-      * @param mutingInfos an array of {@link MutingInfo} objects for the audio zones where audio
-      * mute state has changed.
-      */
-     oneway void onDevicesToMuteChange(in MutingInfo[] mutingInfos);
+    /**
+     * Notifies HAL of changes in output devices that the HAL should apply muting to.
+     *
+     * This will be called in response to changes in audio mute state for each volume group
+     * and will include a {@link MutingInfo} object per audio zone that experienced a mute state
+     * event.
+     *
+     * @param mutingInfos an array of {@link MutingInfo} objects for the audio zones where audio
+     * mute state has changed.
+     */
+    oneway void onDevicesToMuteChange(in MutingInfo[] mutingInfos);
 
     /**
      * Registers focus listener to be used by HAL for requesting and abandoning audio focus.
@@ -99,4 +136,51 @@
      * 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..ac9ac01 100644
--- a/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IFocusListener.aidl
+++ b/automotive/audiocontrol/aidl/android/hardware/automotive/audiocontrol/IFocusListener.aidl
@@ -16,12 +16,14 @@
 
 package android.hardware.automotive.audiocontrol;
 
+import android.hardware.audio.common.PlaybackTrackMetadata;
 import android.hardware.automotive.audiocontrol.AudioFocusChange;
 
 /**
  * Callback interface for audio focus listener.
  *
  * For typical configuration, the listener the car audio service.
+ *
  */
 @VintfStability
 interface IFocusListener {
@@ -33,6 +35,9 @@
      * 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 +52,9 @@
      * 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 +62,29 @@
      * 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..860bf01
--- /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/vehicle/aidl/aidl_test/Android.bp b/automotive/vehicle/aidl/aidl_test/Android.bp
index cb92c6b..5284a0a 100644
--- a/automotive/vehicle/aidl/aidl_test/Android.bp
+++ b/automotive/vehicle/aidl/aidl_test/Android.bp
@@ -26,7 +26,7 @@
         "libhidlbase",
     ],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "android.hardware.automotive.vehicle@2.0",
         "libgtest",
         "libgmock",
diff --git a/automotive/vehicle/aidl/impl/Android.bp b/automotive/vehicle/aidl/impl/Android.bp
index 16b6fde..d24a739 100644
--- a/automotive/vehicle/aidl/impl/Android.bp
+++ b/automotive/vehicle/aidl/impl/Android.bp
@@ -21,7 +21,7 @@
 cc_defaults {
     name: "VehicleHalDefaults",
     static_libs: [
-        "android-automotive-large-parcelable-vendor-lib",
+        "android-automotive-large-parcelable-lib",
         "android.hardware.automotive.vehicle-V1-ndk",
         "libmath",
     ],
diff --git a/automotive/vehicle/aidl/impl/default_config/Android.bp b/automotive/vehicle/aidl/impl/default_config/Android.bp
index 7a98b64..0feaf23 100644
--- a/automotive/vehicle/aidl/impl/default_config/Android.bp
+++ b/automotive/vehicle/aidl/impl/default_config/Android.bp
@@ -24,8 +24,8 @@
     local_include_dirs: ["include"],
     export_include_dirs: ["include"],
     defaults: ["VehicleHalDefaults"],
-    static_libs: ["VehicleHalUtilsVendor"],
+    static_libs: ["VehicleHalUtils"],
     header_libs: ["VehicleHalTestUtilHeaders"],
-    export_static_lib_headers: ["VehicleHalUtilsVendor"],
+    export_static_lib_headers: ["VehicleHalUtils"],
     export_header_lib_headers: ["VehicleHalTestUtilHeaders"],
 }
diff --git a/automotive/vehicle/aidl/impl/default_config/test/Android.bp b/automotive/vehicle/aidl/impl/default_config/test/Android.bp
index 0c4a3a4..771472c 100644
--- a/automotive/vehicle/aidl/impl/default_config/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/default_config/test/Android.bp
@@ -24,7 +24,7 @@
     defaults: ["VehicleHalDefaults"],
     srcs: ["*.cpp"],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "libgtest",
     ],
     header_libs: [
diff --git a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/Android.bp
index e6c4ee9..ab223d3 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/Android.bp
@@ -26,7 +26,7 @@
     export_include_dirs: ["include"],
     defaults: ["VehicleHalDefaults"],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "FakeObd2Frame",
     ],
     shared_libs: [
diff --git a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/test/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/test/Android.bp
index 58f0e98..ac8db44 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/test/Android.bp
@@ -24,7 +24,7 @@
     srcs: ["*.cpp"],
     defaults: ["VehicleHalDefaults"],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "FakeVehicleHalValueGenerators",
         "FakeObd2Frame",
     ],
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp
index 49f7671..dcd9208 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/Android.bp
@@ -39,7 +39,7 @@
     ],
     export_header_lib_headers: ["IVehicleHardware"],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "FakeVehicleHalValueGenerators",
         "FakeObd2Frame",
         "FakeUserHal",
@@ -47,5 +47,5 @@
     shared_libs: [
         "libjsoncpp",
     ],
-    export_static_lib_headers: ["VehicleHalUtilsVendor"],
+    export_static_lib_headers: ["VehicleHalUtils"],
 }
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/test/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/hardware/test/Android.bp
index 9f679bc..90d1516 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/test/Android.bp
@@ -29,7 +29,7 @@
         "VehicleHalTestUtilHeaders",
     ],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "FakeVehicleHardware",
         "FakeVehicleHalValueGenerators",
         "FakeObd2Frame",
diff --git a/automotive/vehicle/aidl/impl/fake_impl/obd2frame/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/obd2frame/Android.bp
index c21ad53..c1cee84 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/obd2frame/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/obd2frame/Android.bp
@@ -26,7 +26,7 @@
     export_include_dirs: ["include"],
     defaults: ["VehicleHalDefaults"],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
     ],
-    export_static_lib_headers: ["VehicleHalUtilsVendor"],
+    export_static_lib_headers: ["VehicleHalUtils"],
 }
diff --git a/automotive/vehicle/aidl/impl/fake_impl/obd2frame/test/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/obd2frame/test/Android.bp
index a16185b..55b8c93 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/obd2frame/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/obd2frame/test/Android.bp
@@ -25,7 +25,7 @@
     defaults: ["VehicleHalDefaults"],
     static_libs: [
         "FakeObd2Frame",
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
     ],
     test_suites: ["device-tests"],
 }
diff --git a/automotive/vehicle/aidl/impl/fake_impl/userhal/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/userhal/Android.bp
index 1689102..2e95531 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/userhal/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/userhal/Android.bp
@@ -26,7 +26,7 @@
     export_include_dirs: ["include"],
     defaults: ["VehicleHalDefaults"],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
     ],
-    export_static_lib_headers: ["VehicleHalUtilsVendor"],
+    export_static_lib_headers: ["VehicleHalUtils"],
 }
diff --git a/automotive/vehicle/aidl/impl/fake_impl/userhal/test/Android.bp b/automotive/vehicle/aidl/impl/fake_impl/userhal/test/Android.bp
index 1471ea6..7d0a534 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/userhal/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/fake_impl/userhal/test/Android.bp
@@ -25,7 +25,7 @@
     defaults: ["VehicleHalDefaults"],
     static_libs: [
         "FakeUserHal",
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "libgtest",
         "libgmock",
     ],
diff --git a/automotive/vehicle/aidl/impl/grpc/utils/proto_message_converter/Android.bp b/automotive/vehicle/aidl/impl/grpc/utils/proto_message_converter/Android.bp
index 6209880..7670c25 100644
--- a/automotive/vehicle/aidl/impl/grpc/utils/proto_message_converter/Android.bp
+++ b/automotive/vehicle/aidl/impl/grpc/utils/proto_message_converter/Android.bp
@@ -34,10 +34,10 @@
     shared_libs: ["libprotobuf-cpp-full"],
     static_libs: [
         "VehicleHalProtos",
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
     ],
     defaults: ["VehicleHalDefaults"],
-    export_static_lib_headers: ["VehicleHalUtilsVendor"],
+    export_static_lib_headers: ["VehicleHalUtils"],
 }
 
 cc_test {
@@ -51,7 +51,7 @@
     static_libs: [
         "VehicleHalProtoMessageConverter",
         "VehicleHalProtos",
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "libgtest",
     ],
     header_libs: ["VehicleHalDefaultConfig"],
diff --git a/automotive/vehicle/aidl/impl/utils/common/Android.bp b/automotive/vehicle/aidl/impl/utils/common/Android.bp
index 88713f1..e5d9346 100644
--- a/automotive/vehicle/aidl/impl/utils/common/Android.bp
+++ b/automotive/vehicle/aidl/impl/utils/common/Android.bp
@@ -19,41 +19,14 @@
 }
 
 cc_library {
-    name: "VehicleHalUtilsVendor",
+    name: "VehicleHalUtils",
     srcs: ["src/*.cpp"],
-    vendor: true,
+    vendor_available: true,
     local_include_dirs: ["include"],
     export_include_dirs: ["include"],
     defaults: ["VehicleHalDefaults"],
 }
 
-// This is a non-vendor version for VehicleHalUtilsVendor.
-cc_library {
-    name: "VehicleHalUtils",
-    srcs: ["src/*.cpp"],
-    local_include_dirs: ["include"],
-    export_include_dirs: ["include"],
-    static_libs: [
-        "android-automotive-large-parcelable-lib",
-        "android.hardware.automotive.vehicle-V1-ndk",
-        "libmath",
-    ],
-    shared_libs: [
-        "libbase",
-        "liblog",
-        "libutils",
-    ],
-    cflags: [
-        "-Wall",
-        "-Wextra",
-        "-Werror",
-        "-Wthread-safety",
-    ],
-    defaults: [
-        "android-automotive-large-parcelable-defaults",
-    ],
-}
-
 cc_library_headers {
     name: "VehicleHalUtilHeaders",
     export_include_dirs: ["include"],
diff --git a/automotive/vehicle/aidl/impl/utils/common/test/Android.bp b/automotive/vehicle/aidl/impl/utils/common/test/Android.bp
index bcb3c8d..5b41ff4 100644
--- a/automotive/vehicle/aidl/impl/utils/common/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/utils/common/test/Android.bp
@@ -23,7 +23,7 @@
     srcs: ["*.cpp"],
     vendor: true,
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "libgtest",
         "libgmock",
     ],
diff --git a/automotive/vehicle/aidl/impl/vhal/Android.bp b/automotive/vehicle/aidl/impl/vhal/Android.bp
index 295cbb7..49f48f7 100644
--- a/automotive/vehicle/aidl/impl/vhal/Android.bp
+++ b/automotive/vehicle/aidl/impl/vhal/Android.bp
@@ -33,7 +33,7 @@
     static_libs: [
         "DefaultVehicleHal",
         "FakeVehicleHardware",
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
     ],
     header_libs: [
         "IVehicleHardware",
@@ -58,7 +58,7 @@
         "src/SubscriptionManager.cpp",
     ],
     static_libs: [
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
     ],
     header_libs: [
         "IVehicleHardware",
diff --git a/automotive/vehicle/aidl/impl/vhal/test/Android.bp b/automotive/vehicle/aidl/impl/vhal/test/Android.bp
index d89f2c1..7122aa5 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/Android.bp
+++ b/automotive/vehicle/aidl/impl/vhal/test/Android.bp
@@ -24,7 +24,7 @@
     srcs: ["*.cpp"],
     static_libs: [
         "DefaultVehicleHal",
-        "VehicleHalUtilsVendor",
+        "VehicleHalUtils",
         "libgtest",
         "libgmock",
     ],
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/current/android/hardware/biometrics/common/OperationContext.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/current/android/hardware/biometrics/common/OperationContext.aidl
index 3a6461e..9d1cb8f 100644
--- a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/current/android/hardware/biometrics/common/OperationContext.aidl
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/current/android/hardware/biometrics/common/OperationContext.aidl
@@ -36,6 +36,6 @@
 parcelable OperationContext {
   int id = 0;
   android.hardware.biometrics.common.OperationReason reason = android.hardware.biometrics.common.OperationReason.UNKNOWN;
-  boolean isAoD = false;
+  boolean isAod = false;
   boolean isCrypto = false;
 }
diff --git a/biometrics/common/aidl/android/hardware/biometrics/common/OperationContext.aidl b/biometrics/common/aidl/android/hardware/biometrics/common/OperationContext.aidl
index 390e698..72fe660 100644
--- a/biometrics/common/aidl/android/hardware/biometrics/common/OperationContext.aidl
+++ b/biometrics/common/aidl/android/hardware/biometrics/common/OperationContext.aidl
@@ -41,8 +41,8 @@
      */
     OperationReason reason = OperationReason.UNKNOWN;
 
-    /* Flag indicating that the display is in AoD mode. */
-    boolean isAoD = false;
+    /* Flag indicating that the display is in AOD mode. */
+    boolean isAod = false;
 
     /** Flag indicating that crypto was requested. */
     boolean isCrypto = false;
diff --git a/biometrics/fingerprint/aidl/aidl_api/android.hardware.biometrics.fingerprint/current/android/hardware/biometrics/fingerprint/PointerContext.aidl b/biometrics/fingerprint/aidl/aidl_api/android.hardware.biometrics.fingerprint/current/android/hardware/biometrics/fingerprint/PointerContext.aidl
index e383330..43db6cf 100644
--- a/biometrics/fingerprint/aidl/aidl_api/android.hardware.biometrics.fingerprint/current/android/hardware/biometrics/fingerprint/PointerContext.aidl
+++ b/biometrics/fingerprint/aidl/aidl_api/android.hardware.biometrics.fingerprint/current/android/hardware/biometrics/fingerprint/PointerContext.aidl
@@ -34,10 +34,13 @@
 package android.hardware.biometrics.fingerprint;
 @VintfStability
 parcelable PointerContext {
-  int pointerId = 0;
-  int x = 0;
-  int y = 0;
+  int pointerId = -1;
+  float x = 0.000000f;
+  float y = 0.000000f;
   float minor = 0.000000f;
   float major = 0.000000f;
-  boolean isAoD = false;
+  float orientation = 0.000000f;
+  boolean isAod = false;
+  long time = 0;
+  long gestureStart = 0;
 }
diff --git a/biometrics/fingerprint/aidl/android/hardware/biometrics/fingerprint/PointerContext.aidl b/biometrics/fingerprint/aidl/android/hardware/biometrics/fingerprint/PointerContext.aidl
index 4975175..e025d34 100644
--- a/biometrics/fingerprint/aidl/android/hardware/biometrics/fingerprint/PointerContext.aidl
+++ b/biometrics/fingerprint/aidl/android/hardware/biometrics/fingerprint/PointerContext.aidl
@@ -21,14 +21,35 @@
  */
 @VintfStability
 parcelable PointerContext {
-    /* See android.view.MotionEvent#getPointerId. */
-    int pointerId = 0;
+    /**
+     * Pointer ID obtained from MotionEvent#getPointerId or -1 if the ID cannot be obtained, for
+     * example if this event originated from a low-level wake-up gesture.
+     *
+     * See android.view.MotionEvent#getPointerId.
+     */
+    int pointerId = -1;
 
-    /* The distance in pixels from the left edge of the display. */
-    int x = 0;
+    /**
+     * The distance in pixels from the left edge of the display.
+     *
+     * This is obtained from MotionEvent#getRawX and translated relative to Surface#ROTATION_0.
+     * Meaning, this value is always reported as if the device is in its natural (e.g. portrait)
+     * orientation.
+     *
+     * See android.view.MotionEvent#getRawX.
+     */
+    float x = 0f;
 
-    /* The distance in pixels from the top edge of the display. */
-    int y = 0;
+    /**
+     * The distance in pixels from the top edge of the display.
+     *
+     * This is obtained from MotionEvent#getRawY and translated relative to Surface#ROTATION_0.
+     * Meaning, this value is always reported as if the device is in its natural (e.g. portrait)
+     * orientation.
+     *
+     * See android.view.MotionEvent#getRawY.
+     */
+    float y = 0f;
 
     /* See android.view.MotionEvent#getTouchMinor. */
     float minor = 0f;
@@ -36,6 +57,32 @@
     /* See android.view.MotionEvent#getTouchMajor. */
     float major = 0f;
 
-    /* Flag indicating that the display is in AoD mode. */
-    boolean isAoD = false;
+    /* See android.view.MotionEvent#getOrientation. */
+    float orientation = 0f;
+
+    /* Flag indicating that the display is in AOD mode. */
+    boolean isAod = false;
+
+    /**
+     * The time of the user interaction that produced this event, in milliseconds.
+     *
+     * This is obtained from MotionEvent#getEventTime, which uses SystemClock.uptimeMillis() as
+     * the clock.
+     *
+     * See android.view.MotionEvent#getEventTime
+     */
+    long time = 0;
+
+    /**
+     * The time of the first user interaction in this gesture, in milliseconds.
+     *
+     * If this event is MotionEvent#ACTION_DOWN, it means it's the first event in this gesture,
+     * and `gestureStart` will be equal to `time`.
+     *
+     * This is obtained from MotionEvent#getDownTime, which uses SystemClock.uptimeMillis() as
+     * the clock.
+     *
+     * See android.view.MotionEvent#getDownTime
+     */
+    long gestureStart = 0;
 }
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/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/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/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/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/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/LeAudioOffloadAudioProvider.cpp b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.cpp
index 72ac9bd..7a28513 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() {}
 
diff --git a/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h
index a27a2e7..6509a9e 100644
--- a/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h
+++ b/bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.h
@@ -48,6 +48,12 @@
   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..0fe205e 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) {}
 
@@ -78,7 +83,9 @@
   }
 
   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;
diff --git a/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h b/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h
index fa58182..ace4bff 100644
--- a/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h
+++ b/bluetooth/audio/aidl/default/LeAudioSoftwareAudioProvider.h
@@ -51,6 +51,12 @@
   LeAudioSoftwareInputAudioProvider();
 };
 
+class LeAudioSoftwareBroadcastAudioProvider
+    : public LeAudioSoftwareAudioProvider {
+ public:
+  LeAudioSoftwareBroadcastAudioProvider();
+};
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
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/utils/aidl_session/BluetoothAudioCodecs.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
index a8d8817..a6fd798 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(
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
index 96cd9ef..dd29011 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;
 }
@@ -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 =
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/HidlToAidlMiddleware.cpp b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
index 632a389..1ef9365 100644
--- a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
+++ b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
@@ -418,100 +418,89 @@
 }
 
 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 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;
+  }
+  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 LeAudioConfig_2_2 to_hidl_leaudio_config_2_2(
-    const LeAudioConfiguration& leaudio_config) {
+    const LeAudioConfiguration& unicast_config) {
   LeAudioConfig_2_2 hidl_leaudio_config;
+  hidl_leaudio_config.mode = LeAudioMode_2_2::UNICAST;
+  ::android::hardware::bluetooth::audio::V2_2::UnicastConfig
+      hidl_unicast_config;
+  hidl_unicast_config.peerDelay =
+      static_cast<uint32_t>(unicast_config.peerDelayUs / 1000);
 
-  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);
 
-    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);
+  }
+  return hidl_leaudio_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 LeAudioConfig_2_2 to_hidl_leaudio_broadcast_config_2_2(
+    const LeAudioBroadcastConfiguration& broadcast_config) {
+  LeAudioConfig_2_2 hidl_leaudio_config;
+  hidl_leaudio_config.mode = LeAudioMode_2_2::BROADCAST;
+  ::android::hardware::bluetooth::audio::V2_2::BroadcastConfig
+      hidl_bcast_config;
+  hidl_bcast_config.streamMap.resize(broadcast_config.streamMap.size());
+  for (int i = 0; i < broadcast_config.streamMap.size(); i++) {
+    hidl_bcast_config.streamMap[i].audioChannelAllocation =
+        static_cast<uint32_t>(
+            broadcast_config.streamMap[i].audioChannelAllocation);
+    hidl_bcast_config.streamMap[i].streamHandle =
+        static_cast<uint16_t>(broadcast_config.streamMap[i].streamHandle);
+    hidl_bcast_config.streamMap[i].lc3Config = to_hidl_lc3_config_2_1(
+        broadcast_config.streamMap[i]
+            .leAudioCodecConfig.get<LeAudioCodecConfiguration::lc3Config>());
   }
   return hidl_leaudio_config;
 }
@@ -532,6 +521,10 @@
       hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_config_2_1(
           audio_config.get<AudioConfiguration::leAudioConfig>()));
       break;
+    case AudioConfiguration::leAudioBroadcastConfig:
+      hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_broadcast_config_2_1(
+          audio_config.get<AudioConfiguration::leAudioBroadcastConfig>()));
+      break;
   }
   return hidl_audio_config;
 }
@@ -552,6 +545,10 @@
       hidl_audio_config.leAudioConfig(to_hidl_leaudio_config_2_2(
           audio_config.get<AudioConfiguration::leAudioConfig>()));
       break;
+    case AudioConfiguration::leAudioBroadcastConfig:
+      hidl_audio_config.leAudioConfig(to_hidl_leaudio_broadcast_config_2_2(
+          audio_config.get<AudioConfiguration::leAudioBroadcastConfig>()));
+      break;
   }
   return hidl_audio_config;
 }
diff --git a/graphics/allocator/2.0/Android.bp b/graphics/allocator/2.0/Android.bp
index 6ec4e64..40db81d 100644
--- a/graphics/allocator/2.0/Android.bp
+++ b/graphics/allocator/2.0/Android.bp
@@ -24,4 +24,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/allocator/3.0/Android.bp b/graphics/allocator/3.0/Android.bp
index 768baba..800632c 100644
--- a/graphics/allocator/3.0/Android.bp
+++ b/graphics/allocator/3.0/Android.bp
@@ -26,4 +26,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/allocator/4.0/Android.bp b/graphics/allocator/4.0/Android.bp
index 0df9b39..5c5fb37 100644
--- a/graphics/allocator/4.0/Android.bp
+++ b/graphics/allocator/4.0/Android.bp
@@ -26,4 +26,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/common/1.0/Android.bp b/graphics/common/1.0/Android.bp
index 74a0d9b..ac158d9 100644
--- a/graphics/common/1.0/Android.bp
+++ b/graphics/common/1.0/Android.bp
@@ -21,4 +21,9 @@
     ],
     gen_java: true,
     gen_java_constants: true,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/common/1.1/Android.bp b/graphics/common/1.1/Android.bp
index a120278..e45d6dd 100644
--- a/graphics/common/1.1/Android.bp
+++ b/graphics/common/1.1/Android.bp
@@ -24,4 +24,9 @@
     ],
     gen_java: true,
     gen_java_constants: true,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/common/1.2/Android.bp b/graphics/common/1.2/Android.bp
index fe149e4..c23085d 100644
--- a/graphics/common/1.2/Android.bp
+++ b/graphics/common/1.2/Android.bp
@@ -25,4 +25,9 @@
     ],
     gen_java: true,
     gen_java_constants: true,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/AlphaInterpretation.aidl
similarity index 85%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/AlphaInterpretation.aidl
index 766f637..ea60283 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/AlphaInterpretation.aidl
@@ -1,11 +1,11 @@
-/*
- * 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.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -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.graphics.common;
+/* @hide */
+@Backing(type="int") @VintfStability
+enum AlphaInterpretation {
+  COVERAGE = 0,
+  MASK = 1,
 }
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/BufferAheadResult.aidl b/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/DisplayDecorationSupport.aidl
similarity index 86%
rename from graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/BufferAheadResult.aidl
rename to graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/DisplayDecorationSupport.aidl
index 94fd91b..27eff76 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/BufferAheadResult.aidl
+++ b/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/DisplayDecorationSupport.aidl
@@ -31,14 +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.graphics.composer3;
+package android.hardware.graphics.common;
+/* @hide */
 @VintfStability
-parcelable BufferAheadResult {
-  long display;
-  android.hardware.graphics.composer3.BufferAheadResult.Layer[] layers;
-  @VintfStability
-  parcelable Layer {
-    long layer;
-    boolean presented;
-  }
+parcelable DisplayDecorationSupport {
+  android.hardware.graphics.common.PixelFormat format;
+  android.hardware.graphics.common.AlphaInterpretation alphaInterpretation;
 }
diff --git a/graphics/common/aidl/android/hardware/graphics/common/AlphaInterpretation.aidl b/graphics/common/aidl/android/hardware/graphics/common/AlphaInterpretation.aidl
new file mode 100644
index 0000000..e994cf2
--- /dev/null
+++ b/graphics/common/aidl/android/hardware/graphics/common/AlphaInterpretation.aidl
@@ -0,0 +1,42 @@
+/**
+ * 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.graphics.common;
+
+/**
+ * How to interperet alpha values when it may be ambiguous.
+ * @hide
+ */
+@VintfStability
+@Backing(type="int")
+enum AlphaInterpretation {
+    /**
+     * Alpha values are treated as coverage.
+     *
+     * Pixels in the buffer with an alpha of 0 (transparent) will be rendered in
+     * black, and pixels with a max value will show the content underneath. An
+     * alpha in between will show the content blended with black.
+     */
+    COVERAGE = 0,
+    /**
+     * Alpha values are treated as a mask.
+     *
+     * Pixels in the buffer with an alpha of 0 (transparent) will show the
+     * content underneath, and pixels with a max value will be rendered in
+     * black. An alpha in between will show the content blended with black.
+     */
+    MASK = 1,
+}
diff --git a/graphics/common/aidl/android/hardware/graphics/common/DisplayDecorationSupport.aidl b/graphics/common/aidl/android/hardware/graphics/common/DisplayDecorationSupport.aidl
new file mode 100644
index 0000000..42c2392
--- /dev/null
+++ b/graphics/common/aidl/android/hardware/graphics/common/DisplayDecorationSupport.aidl
@@ -0,0 +1,42 @@
+/**
+ * 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.graphics.common;
+
+import android.hardware.graphics.common.PixelFormat;
+import android.hardware.graphics.common.AlphaInterpretation;
+
+/**
+ * A description of how a device supports Composition.DISPLAY_DECORATION.
+ *
+ * If the device supports Composition.DISPLAY_DECORATION, a call to
+ * IComposerClient.getDisplayDecorationSupport should return an instance of this
+ * parcelable. Otherwise the method should return null.
+ * @hide
+ */
+@VintfStability
+parcelable DisplayDecorationSupport {
+    /**
+     * The format to use for DISPLAY_DECORATION layers. Other formats are not
+     * supported. If other formats are used with DISPLAY_DECORATION, the result
+     * is undefined.
+     */
+    PixelFormat format;
+    /**
+     * How the device intreprets the alpha in the pixel buffer.
+     */
+    AlphaInterpretation alphaInterpretation;
+}
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/Capability.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/Capability.aidl
index e989b6c..9c49583 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/Capability.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/Capability.aidl
@@ -39,5 +39,4 @@
   SKIP_CLIENT_COLOR_TRANSFORM = 2,
   PRESENT_FENCE_IS_NOT_RELIABLE = 3,
   SKIP_VALIDATE = 4,
-  BUFFER_AHEAD = 5,
 }
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/CommandResultPayload.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/CommandResultPayload.aidl
index fb39172..ebbb31e 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/CommandResultPayload.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/CommandResultPayload.aidl
@@ -39,7 +39,6 @@
   android.hardware.graphics.composer3.DisplayRequest displayRequest;
   android.hardware.graphics.composer3.PresentFence presentFence;
   android.hardware.graphics.composer3.ReleaseFences releaseFences;
-  android.hardware.graphics.composer3.BufferAheadResult bufferAheadResult;
   android.hardware.graphics.composer3.PresentOrValidate presentOrValidateResult;
   android.hardware.graphics.composer3.ClientTargetPropertyWithNits clientTargetProperty;
 }
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl
index b41ac8a..6eba887 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl
@@ -41,6 +41,5 @@
   PROTECTED_CONTENTS = 4,
   AUTO_LOW_LATENCY_MODE = 5,
   SUSPEND = 6,
-  DISPLAY_DECORATION = 7,
-  DISPLAY_IDLE_TIMER = 8,
+  DISPLAY_IDLE_TIMER = 7,
 }
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl
index 2de699b..b49f239 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl
@@ -59,6 +59,7 @@
   @nullable ParcelFileDescriptor getReadbackBufferFence(long display);
   android.hardware.graphics.composer3.RenderIntent[] getRenderIntents(long display, android.hardware.graphics.composer3.ColorMode mode);
   android.hardware.graphics.composer3.ContentType[] getSupportedContentTypes(long display);
+  @nullable android.hardware.graphics.common.DisplayDecorationSupport getDisplayDecorationSupport(long display);
   void registerCallback(in android.hardware.graphics.composer3.IComposerCallback callback);
   void setActiveConfig(long display, int config);
   android.hardware.graphics.composer3.VsyncPeriodChangeTimeline setActiveConfigWithConstraints(long display, int config, in android.hardware.graphics.composer3.VsyncPeriodChangeConstraints vsyncPeriodChangeConstraints);
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/LayerCommand.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/LayerCommand.aidl
index 1429c35..c1c0117 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/LayerCommand.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/LayerCommand.aidl
@@ -37,7 +37,6 @@
   long layer;
   @nullable android.hardware.graphics.common.Point cursorPosition;
   @nullable android.hardware.graphics.composer3.Buffer buffer;
-  @nullable android.hardware.graphics.composer3.Buffer bufferAhead;
   @nullable android.hardware.graphics.common.Rect[] damage;
   @nullable android.hardware.graphics.composer3.ParcelableBlendMode blendMode;
   @nullable android.hardware.graphics.composer3.Color color;
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/BufferAheadResult.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/BufferAheadResult.aidl
deleted file mode 100644
index 7ca4578..0000000
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/BufferAheadResult.aidl
+++ /dev/null
@@ -1,46 +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.
- */
-
-package android.hardware.graphics.composer3;
-
-@VintfStability
-parcelable BufferAheadResult {
-    /**
-     * The display which this commands refers to.
-     * @see IComposer.createDisplay
-     */
-    long display;
-
-    @VintfStability
-    parcelable Layer {
-        /**
-         * The layer which this commands refers to.
-         * @see IComposer.createLayer
-         */
-        long layer;
-
-        /**
-         * Represents whether BufferAhead was presented as part of the last
-         * present or not.
-         */
-        boolean presented;
-    }
-
-    /**
-     * The layers which has BufferAheadResult populated.
-     */
-    Layer[] layers;
-}
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/Capability.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/Capability.aidl
index 77ad1e0..ea619ae 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/Capability.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/Capability.aidl
@@ -57,9 +57,4 @@
      * validateDisplay step is needed.
      */
     SKIP_VALIDATE = 4,
-    /**
-     * Specifies that a device is able to use the LayerCommand.bufferAhead
-     * when provided.
-     */
-    BUFFER_AHEAD = 5
 }
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/CommandResultPayload.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/CommandResultPayload.aidl
index fd1e4cc..f2de68e 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/CommandResultPayload.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/CommandResultPayload.aidl
@@ -16,7 +16,6 @@
 
 package android.hardware.graphics.composer3;
 
-import android.hardware.graphics.composer3.BufferAheadResult;
 import android.hardware.graphics.composer3.ChangedCompositionTypes;
 import android.hardware.graphics.composer3.ClientTargetPropertyWithNits;
 import android.hardware.graphics.composer3.CommandError;
@@ -79,13 +78,6 @@
     ReleaseFences releaseFences;
 
     /**
-     * Represents the result of the LayerCommand.bufferAhead that was
-     * sent in the last presentDisplay call. That is, the presentDisplay
-     * call prior to this presentDisplay.
-     */
-    BufferAheadResult bufferAheadResult;
-
-    /**
      * Sets the state of PRESENT_OR_VALIDATE_DISPLAY command.
      */
     PresentOrValidate presentOrValidateResult;
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl
index 803de06..adcc9f6 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl
@@ -75,13 +75,12 @@
     SIDEBAND = 5,
     /**
      * A display decoration layer contains a buffer which is used to provide
-     * anti-aliasing on the cutout region/rounded corners on the top and
+     * anti-aliasing on the cutout region and rounded corners on the top and
      * bottom of a display.
      *
-     * Pixels in the buffer with an alpha of 0 (transparent) will show the
-     * content underneath, and pixels with a max alpha value will be rendered in
-     * black. An alpha in between will show the underlying content blended with
-     * black.
+     * Only supported if the device returns a valid struct from
+     * getDisplayDecorationSupport. Pixels in the buffer are interpreted
+     * according to the DisplayDecorationSupport.alphInterpretation.
      *
      * Upon validateDisplay, the device may request a change from this type
      * to either DEVICE or CLIENT.
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl
index 85136c4..f4b2984 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl
@@ -76,12 +76,8 @@
      */
     SUSPEND = 6,
     /**
-     * Indicates that the display supports Composition.DISPLAY_DECORATION.
-     */
-    DISPLAY_DECORATION = 7,
-    /**
      * Indicates that the display supports IComposerClient.setIdleTimerEnabled and
      * IComposerCallback.onVsyncIdle.
      */
-    DISPLAY_IDLE_TIMER = 8,
+    DISPLAY_IDLE_TIMER = 7,
 }
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl
index 2fe6656..769f803 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl
@@ -16,6 +16,7 @@
 
 package android.hardware.graphics.composer3;
 
+import android.hardware.graphics.common.DisplayDecorationSupport;
 import android.hardware.graphics.common.Transform;
 import android.hardware.graphics.composer3.ClientTargetProperty;
 import android.hardware.graphics.composer3.ColorMode;
@@ -516,6 +517,16 @@
     ContentType[] getSupportedContentTypes(long display);
 
     /**
+     * Report whether and how this display supports Composition.DISPLAY_DECORATION.
+     *
+     * @return A description of how the display supports DISPLAY_DECORATION, or null
+     * if it is unsupported.
+     *
+     * @exception EX_BAD_DISPLAY when an invalid display handle was passed in.
+     */
+    @nullable DisplayDecorationSupport getDisplayDecorationSupport(long display);
+
+    /**
      * Provides a IComposerCallback object for the device to call.
      *
      * This function must be called only once.
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/LayerCommand.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/LayerCommand.aidl
index ab93794..6f6894f 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/LayerCommand.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/LayerCommand.aidl
@@ -70,30 +70,6 @@
     @nullable Buffer buffer;
 
     /**
-     * Sets a buffer handle to be displayed for this layer and a file descriptor
-     * referring to an acquire sync fence object, which must be signaled when it is
-     * safe to read from the given buffer.
-     *
-     * When bufferAhead is provided, the implementation should try to
-     * present it on the next scanout as long as its acquire sync fence
-     * is signaled by that time. Otherwise the bufferAhead should be dropped.
-     * This allows the client to set an
-     * unsignaled buffer on the layer without causing the entire display to miss
-     * an update if the buffer is not ready by the next scanout time.
-     *
-     * In case bufferAhead is dropped and LayerCommand.buffer is provided, LayerCommand.buffer
-     * should be used as the next layer buffer.
-     *
-     * The implementation is expected to populate the CommandResultPayload.bufferAheadResult
-     * with information about whether bufferAhead was presented or dropped.
-     * Since this information is not known at the current presentDisplay call
-     * of frame N (as the scanout happens after the call returns),
-     * the implementation should populate it when presentDisplay is
-     * called for frame N+1.
-     */
-    @nullable Buffer bufferAhead;
-
-    /**
      * Provides the region of the source buffer which has been modified since
      * the last frame. This region does not need to be validated before
      * calling presentDisplay.
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp b/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp
index 404b548..17ec885 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp
@@ -984,7 +984,6 @@
         const auto errors = mReader.takeErrors();
         ASSERT_TRUE(mReader.takeErrors().empty());
         ASSERT_TRUE(mReader.takeChangedCompositionTypes(getPrimaryDisplayId()).empty());
-        ASSERT_TRUE(mReader.takeBufferAheadResultLayers(getPrimaryDisplayId()).empty());
 
         ASSERT_NO_FATAL_FAILURE(GraphicsComposerAidlTest::TearDown());
     }
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/composer-vts/include/VtsComposerClient.h b/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/composer-vts/include/VtsComposerClient.h
index b53edf8..9af867c 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/composer-vts/include/VtsComposerClient.h
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/composer-vts/include/VtsComposerClient.h
@@ -199,7 +199,7 @@
 
 class VtsDisplay {
   public:
-    VtsDisplay(int64_t displayId) : mDisplayId(displayId) {}
+    VtsDisplay(int64_t displayId) : mDisplayId(displayId), mDisplayWidth(0), mDisplayHeight(0) {}
 
     int64_t getDisplayId() const { return mDisplayId; }
 
@@ -237,4 +237,4 @@
     int32_t mDisplayHeight;
     std::unordered_map<int32_t, DisplayConfig> displayConfigs;
 };
-}  // namespace aidl::android::hardware::graphics::composer3::vts
\ No newline at end of file
+}  // namespace aidl::android::hardware::graphics::composer3::vts
diff --git a/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientReader.h b/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientReader.h
index 8f8c98f..f9e35e9 100644
--- a/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientReader.h
+++ b/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientReader.h
@@ -77,10 +77,6 @@
                     parseSetClientTargetProperty(std::move(
                             result.get<CommandResultPayload::Tag::clientTargetProperty>()));
                     break;
-                case CommandResultPayload::Tag::bufferAheadResult:
-                    parseSetBufferAheadResultLayers(
-                            result.get<CommandResultPayload::Tag::bufferAheadResult>());
-                    break;
             }
         }
     }
@@ -172,16 +168,6 @@
         return std::move(data.clientTargetProperty);
     }
 
-    std::vector<BufferAheadResult::Layer> takeBufferAheadResultLayers(int64_t display) {
-        const auto found = mReturnData.find(display);
-
-        if (found == mReturnData.end()) {
-            return {};
-        }
-
-        return std::move(found->second.bufferAheadResultLayers);
-    }
-
   private:
     void resetData() {
         mErrors.clear();
@@ -220,18 +206,12 @@
         data.clientTargetProperty = std::move(clientTargetProperty);
     }
 
-    void parseSetBufferAheadResultLayers(const BufferAheadResult& bufferAheadResult) {
-        auto& data = mReturnData[bufferAheadResult.display];
-        data.bufferAheadResultLayers = std::move(bufferAheadResult.layers);
-    }
-
     struct ReturnData {
         DisplayRequest displayRequests;
         std::vector<ChangedCompositionLayer> changedLayers;
         ndk::ScopedFileDescriptor presentFence;
         std::vector<ReleaseFences::Layer> releasedLayers;
         PresentOrValidate::Result presentOrValidateState;
-        std::vector<BufferAheadResult::Layer> bufferAheadResultLayers;
 
         ClientTargetPropertyWithNits clientTargetProperty = {
                 .clientTargetProperty = {common::PixelFormat::RGBA_8888, Dataspace::UNKNOWN},
diff --git a/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientWriter.h b/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientWriter.h
index 02405ba..a04b982 100644
--- a/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientWriter.h
+++ b/graphics/composer/aidl/include/android/hardware/graphics/composer3/ComposerClientWriter.h
@@ -131,11 +131,6 @@
         getLayerCommand(display, layer).buffer = getBuffer(slot, buffer, acquireFence);
     }
 
-    void setLayerBufferAhead(int64_t display, int64_t layer, uint32_t slot,
-                             const native_handle_t* buffer, int acquireFence) {
-        getLayerCommand(display, layer).bufferAhead = getBuffer(slot, buffer, acquireFence);
-    }
-
     void setLayerSurfaceDamage(int64_t display, int64_t layer, const std::vector<Rect>& damage) {
         getLayerCommand(display, layer).damage.emplace(damage.begin(), damage.end());
     }
diff --git a/graphics/mapper/2.0/Android.bp b/graphics/mapper/2.0/Android.bp
index 63fdfa6..6c3ef54 100644
--- a/graphics/mapper/2.0/Android.bp
+++ b/graphics/mapper/2.0/Android.bp
@@ -25,4 +25,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/mapper/2.1/Android.bp b/graphics/mapper/2.1/Android.bp
index 4011650..cc74156 100644
--- a/graphics/mapper/2.1/Android.bp
+++ b/graphics/mapper/2.1/Android.bp
@@ -26,4 +26,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/mapper/3.0/Android.bp b/graphics/mapper/3.0/Android.bp
index 401a3a2..88992a3 100644
--- a/graphics/mapper/3.0/Android.bp
+++ b/graphics/mapper/3.0/Android.bp
@@ -27,4 +27,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
diff --git a/graphics/mapper/4.0/Android.bp b/graphics/mapper/4.0/Android.bp
index 4084dcd..0cffce4 100644
--- a/graphics/mapper/4.0/Android.bp
+++ b/graphics/mapper/4.0/Android.bp
@@ -27,4 +27,9 @@
         "android.hidl.base@1.0",
     ],
     gen_java: false,
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
 }
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/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/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/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/src/Conversions.cpp b/neuralnetworks/aidl/utils/src/Conversions.cpp
index 9b897c4..83fda10 100644
--- a/neuralnetworks/aidl/utils/src/Conversions.cpp
+++ b/neuralnetworks/aidl/utils/src/Conversions.cpp
@@ -614,7 +614,7 @@
     using Ts::operator()...;
 };
 template <class... Ts>
-overloaded(Ts...)->overloaded<Ts...>;
+overloaded(Ts...) -> overloaded<Ts...>;
 
 #ifdef __ANDROID__
 nn::GeneralResult<common::NativeHandle> aidlHandleFromNativeHandle(
@@ -1190,4 +1190,8 @@
     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/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/sensors/aidl/default/Sensor.cpp b/sensors/aidl/default/Sensor.cpp
index 50d8841..62193d6 100644
--- a/sensors/aidl/default/Sensor.cpp
+++ b/sensors/aidl/default/Sensor.cpp
@@ -52,10 +52,10 @@
 }
 
 void Sensor::batch(int64_t samplingPeriodNs) {
-    if (samplingPeriodNs < mSensorInfo.minDelayUs * 1000ll) {
-        samplingPeriodNs = mSensorInfo.minDelayUs * 1000ll;
-    } else if (samplingPeriodNs > mSensorInfo.maxDelayUs * 1000ll) {
-        samplingPeriodNs = mSensorInfo.maxDelayUs * 1000ll;
+    if (samplingPeriodNs < mSensorInfo.minDelayUs * 1000LL) {
+        samplingPeriodNs = mSensorInfo.minDelayUs * 1000LL;
+    } else if (samplingPeriodNs > mSensorInfo.maxDelayUs * 1000LL) {
+        samplingPeriodNs = mSensorInfo.maxDelayUs * 1000LL;
     }
 
     if (mSamplingPeriodNs != samplingPeriodNs) {
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/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 5c0aacd..ed6e7c9 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
@@ -45,6 +45,7 @@
   void filsHlpFlushRequest();
   android.hardware.wifi.supplicant.DppResponderBootstrapInfo generateDppBootstrapInfoForResponder(in byte[] macAddress, in String deviceInfo, in android.hardware.wifi.supplicant.DppCurve curve);
   android.hardware.wifi.supplicant.ConnectionCapabilities getConnectionCapabilities();
+  android.hardware.wifi.supplicant.MloLinksInfo getConnectionMloLinksInfo();
   android.hardware.wifi.supplicant.KeyMgmtMask getKeyMgmtCapabilities();
   byte[] getMacAddress();
   String getName();
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLink.aidl
similarity index 88%
copy from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLink.aidl
index 766f637..5e2c47b 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLink.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 +31,9 @@
 // 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.wifi.supplicant;
+@VintfStability
+parcelable MloLink {
+  byte linkId;
+  byte[] staLinkMacAddress;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLinksInfo.aidl
similarity index 88%
rename from bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
rename to wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLinksInfo.aidl
index 766f637..14fcb91 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLinksInfo.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.wifi.supplicant;
+@VintfStability
+parcelable MloLinksInfo {
+  android.hardware.wifi.supplicant.MloLink[] links;
 }
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
index a48a991..95e087f 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
@@ -28,6 +28,7 @@
 import android.hardware.wifi.supplicant.ISupplicantStaNetwork;
 import android.hardware.wifi.supplicant.IfaceType;
 import android.hardware.wifi.supplicant.KeyMgmtMask;
+import android.hardware.wifi.supplicant.MloLinksInfo;
 import android.hardware.wifi.supplicant.QosPolicyStatus;
 import android.hardware.wifi.supplicant.RxFilterType;
 import android.hardware.wifi.supplicant.WpaDriverCapabilitiesMask;
@@ -188,6 +189,15 @@
     ConnectionCapabilities getConnectionCapabilities();
 
     /**
+     * Get Connection MLO links Info
+     *
+     * @return Connection MLO Links Info.
+     * @throws ServiceSpecificException with one of the following values:
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|
+     */
+    MloLinksInfo getConnectionMloLinksInfo();
+
+    /**
      * Get Key management capabilities of the device
      *
      * @return Bitmap of key management mask.
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLink.aidl
similarity index 60%
copy from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
copy to wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLink.aidl
index 2cf019e..0e23728 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLink.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.
@@ -14,12 +14,20 @@
  * limitations under the License.
  */
 
-package android.hardware.bluetooth.audio;
+package android.hardware.wifi.supplicant;
 
+/**
+ * Multi-Link Operation (MLO) Link IEEE Std 802.11-be.
+ * The information for MLO link needed by 802.11be standard.
+ */
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+parcelable MloLink {
+    /**
+     * Link ID
+     */
+    byte linkId;
+    /**
+     * STA Link MAC Address
+     */
+    byte[/* 6 */] staLinkMacAddress;
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLinksInfo.aidl
similarity index 62%
rename from bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
rename to wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLinksInfo.aidl
index 2cf019e..2f14717 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioMode.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLinksInfo.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.
@@ -14,12 +14,18 @@
  * limitations under the License.
  */
 
-package android.hardware.bluetooth.audio;
+package android.hardware.wifi.supplicant;
 
+import android.hardware.wifi.supplicant.MloLink;
+
+/**
+ * Multi-Link Operation (MLO) Links info.
+ * The information for MLO links needed by 802.11be standard.
+ */
 @VintfStability
-@Backing(type="byte")
-enum LeAudioMode {
-    UNKNOWN,
-    UNICAST,
-    BROADCAST,
+parcelable MloLinksInfo {
+    /**
+     * List of MLO links
+     */
+    MloLink[] links;
 }