Merge changes from topic "gnss-cherry-pick" into sc-v2-dev-plus-aosp

* changes:
  Supported synchronized fixed location and measurement from device files
  Add parser to support CSV location data
  Read GNSS measurement from device file when available
  Add raw measurement parser
  fix potential use-after-frees of stack memory
  Refactor and reuse some read device file logic Add skeleton on HAL for Gnss raw measurement injection
diff --git a/audio/common/all-versions/default/service/service.cpp b/audio/common/all-versions/default/service/service.cpp
index 3472af1..fbf6165 100644
--- a/audio/common/all-versions/default/service/service.cpp
+++ b/audio/common/all-versions/default/service/service.cpp
@@ -23,6 +23,7 @@
 #include <android/binder_process.h>
 #include <binder/ProcessState.h>
 #include <cutils/properties.h>
+#include <dlfcn.h>
 #include <hidl/HidlTransportSupport.h>
 #include <hidl/LegacySupport.h>
 #include <hwbinder/ProcessState.h>
@@ -46,6 +47,31 @@
     return false;
 }
 
+static bool registerExternalServiceImplementation(const std::string& libName,
+                                                  const std::string& funcName) {
+    constexpr int dlMode = RTLD_LAZY;
+    void* handle = nullptr;
+    dlerror();  // clear
+    auto libPath = libName + ".so";
+    handle = dlopen(libPath.c_str(), dlMode);
+    if (handle == nullptr) {
+        const char* error = dlerror();
+        ALOGE("Failed to dlopen %s: %s", libPath.c_str(),
+              error != nullptr ? error : "unknown error");
+        return false;
+    }
+    binder_status_t (*factoryFunction)();
+    *(void**)(&factoryFunction) = dlsym(handle, funcName.c_str());
+    if (!factoryFunction) {
+        const char* error = dlerror();
+        ALOGE("Factory function %s not found in libName %s: %s", funcName.c_str(), libPath.c_str(),
+              error != nullptr ? error : "unknown error");
+        dlclose(handle);
+        return false;
+    }
+    return ((*factoryFunction)() == STATUS_OK);
+}
+
 int main(int /* argc */, char* /* argv */ []) {
     signal(SIGPIPE, SIG_IGN);
 
@@ -105,6 +131,13 @@
             "android.hardware.bluetooth.a2dp@1.0::IBluetoothAudioOffload"
         }
     };
+
+    const std::vector<std::pair<std::string,std::string>> optionalInterfaceSharedLibs = {
+        {
+            "android.hardware.bluetooth.audio-impl",
+            "createIBluetoothAudioProviderFactory",
+        },
+    };
     // clang-format on
 
     for (const auto& listIter : mandatoryInterfaces) {
@@ -121,5 +154,15 @@
                  "Could not register %s", interfaceFamilyName.c_str());
     }
 
+    for (const auto& interfacePair : optionalInterfaceSharedLibs) {
+        const std::string& libraryName = interfacePair.first;
+        const std::string& interfaceLoaderFuncName = interfacePair.second;
+        if (registerExternalServiceImplementation(libraryName, interfaceLoaderFuncName)) {
+            ALOGI("%s() from %s success", interfaceLoaderFuncName.c_str(), libraryName.c_str());
+        } else {
+            ALOGW("%s() from %s failed", interfaceLoaderFuncName.c_str(), libraryName.c_str());
+        }
+    }
+
     joinRpcThreadpool();
 }
diff --git a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml
index 09463c9..ea7adc9 100644
--- a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml
+++ b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml
@@ -22,8 +22,11 @@
     <target_preparer class="com.android.tradefed.targetprep.StopServicesSetup">
     </target_preparer>
 
-    <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
-        <option name="bluetooth" value="off" />
+    <target_preparer class="com.android.tradefed.targetprep.RunCommandTargetPreparer">
+        <option name="run-command" value="settings put global ble_scan_always_enabled 0" />
+        <option name="run-command" value="su u$(am get-current-user)_system svc bluetooth disable" />
+        <option name="teardown-command" value="su u$(am get-current-user)_system svc bluetooth enable" />
+        <option name="teardown-command" value="settings put global ble_scan_always_enabled 1" />
     </target_preparer>
 
     <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
diff --git a/bluetooth/audio/2.2/Android.bp b/bluetooth/audio/2.2/Android.bp
deleted file mode 100644
index d66e84e..0000000
--- a/bluetooth/audio/2.2/Android.bp
+++ /dev/null
@@ -1,33 +0,0 @@
-// This file is autogenerated by hidl-gen -Landroidbp.
-
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "hardware_interfaces_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["hardware_interfaces_license"],
-}
-
-hidl_interface {
-    name: "android.hardware.bluetooth.audio@2.2",
-    root: "android.hardware",
-    srcs: [
-        "types.hal",
-        "IBluetoothAudioPort.hal",
-        "IBluetoothAudioProvider.hal",
-        "IBluetoothAudioProvidersFactory.hal",
-    ],
-    interfaces: [
-        "android.hardware.audio.common@5.0",
-        "android.hardware.bluetooth.audio@2.0",
-        "android.hardware.bluetooth.audio@2.1",
-        "android.hidl.base@1.0",
-        "android.hidl.safe_union@1.0",
-    ],
-    apex_available: [
-        "//apex_available:platform",
-        "com.android.bluetooth",
-    ],
-    gen_java: false,
-}
diff --git a/bluetooth/audio/2.2/IBluetoothAudioPort.hal b/bluetooth/audio/2.2/IBluetoothAudioPort.hal
deleted file mode 100644
index 344899c..0000000
--- a/bluetooth/audio/2.2/IBluetoothAudioPort.hal
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.hardware.bluetooth.audio@2.2;
-
-import @2.0::IBluetoothAudioPort;
-import android.hardware.audio.common@5.0::SinkMetadata;
-
-interface IBluetoothAudioPort extends @2.0::IBluetoothAudioPort  {
-    /**
-     * Called when the metadata of the stream's sink has been changed.
-     *
-     * @param sinkMetadata Description of the audio that is recorded by the
-     *    clients.
-     */
-    updateSinkMetadata(SinkMetadata sinkMetadata);
-};
diff --git a/bluetooth/audio/2.2/IBluetoothAudioProvider.hal b/bluetooth/audio/2.2/IBluetoothAudioProvider.hal
deleted file mode 100644
index 7c91805..0000000
--- a/bluetooth/audio/2.2/IBluetoothAudioProvider.hal
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.hardware.bluetooth.audio@2.2;
-
-import @2.1::IBluetoothAudioProvider;
-import @2.2::IBluetoothAudioPort;
-import @2.0::Status;
-
-/**
- * HAL interface from the Bluetooth stack to the Audio HAL
- *
- * The Bluetooth stack calls methods in this interface to start and end audio
- * sessions and sends callback events to the Audio HAL.
- *
- * Note: For HIDL APIs with a "generates" statement, the callback parameter used
- * for return value must be invoked synchronously before the API call returns.
- */
-interface IBluetoothAudioProvider extends @2.1::IBluetoothAudioProvider {
-
-    /**
-     * This method indicates that the Bluetooth stack is ready to stream audio.
-     * It registers an instance of IBluetoothAudioPort with and provides the
-     * current negotiated codec to the Audio HAL. After this method is called,
-     * the Audio HAL can invoke IBluetoothAudioPort.startStream().
-     *
-     * Note: endSession() must be called to unregister this IBluetoothAudioPort
-     *
-     * @param hostIf An instance of IBluetoothAudioPort for stream control
-     * @param audioConfig The audio configuration negotiated with the remote
-     *    device. The PCM parameters are set if software based encoding,
-     *    otherwise the correct codec configuration is used for hardware
-     *    encoding.
-     *
-     * @return status One of the following
-     *    SUCCESS if this IBluetoothAudioPort was successfully registered with
-     *        the Audio HAL
-     *    UNSUPPORTED_CODEC_CONFIGURATION if the Audio HAL cannot register this
-     *        IBluetoothAudioPort with the given codec configuration
-     *    FAILURE if the Audio HAL cannot register this IBluetoothAudioPort for
-     *        any other reason
-     * @return dataMQ The fast message queue for audio data from/to this
-     *    provider. Audio data will be in PCM format as specified by the
-     *    audioConfig.pcmConfig parameter. Invalid if streaming is offloaded
-     *    from/to hardware or on failure.
-     */
-    startSession_2_2(IBluetoothAudioPort hostIf, AudioConfiguration audioConfig)
-                generates (Status status, fmq_sync<uint8_t> dataMQ);
-
-    /**
-     * Called when the audio configuration of the stream has been changed.
-     *
-     * @param audioConfig The audio configuration negotiated with the remote
-     *    device. The PCM parameters are set if software based encoding,
-     *    otherwise the correct codec configuration is used for hardware
-     *    encoding.
-     */
-    updateAudioConfiguration(AudioConfiguration audioConfig);
-
-    /**
-     * Called when the supported latency mode is updated.
-     *
-     * @param allowed If the peripheral devices can't keep up with low latency
-     * mode, the API will be called with supported is false.
-     */
-    setLowLatencyModeAllowed(bool allowed);
-};
diff --git a/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.hal b/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.hal
deleted file mode 100644
index ae9c598..0000000
--- a/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.hal
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.hardware.bluetooth.audio@2.2;
-
-import IBluetoothAudioProvider;
-import @2.1::IBluetoothAudioProvidersFactory;
-import @2.0::Status;
-import @2.1::SessionType;
-
-/**
- * This factory allows a HAL implementation to be split into multiple
- * independent providers.
- *
- * When the Bluetooth stack is ready to create an audio session, it must first
- * obtain the IBluetoothAudioProvider for that session type by calling
- * openProvider().
- *
- * Note: For HIDL APIs with a "generates" statement, the callback parameter used
- * for return value must be invoked synchronously before the API call returns.
- */
-interface IBluetoothAudioProvidersFactory extends @2.1::IBluetoothAudioProvidersFactory {
-    /**
-     * Opens an audio provider for a session type. To close the provider, it is
-     * necessary to release references to the returned provider object.
-     *
-     * @param sessionType The session type (e.g.
-     *    LE_AUDIO_SOFTWARE_ENCODING_DATAPATH).
-     *
-     * @return status One of the following
-     *    SUCCESS if the Audio HAL successfully opens the provider with the
-     *        given session type
-     *    FAILURE if the Audio HAL cannot open the provider
-     * @return provider The provider of the specified session type
-     */
-    openProvider_2_2(SessionType sessionType)
-        generates (Status status, IBluetoothAudioProvider provider);
-
-    /**
-     * Gets a list of audio capabilities for a session type.
-     *
-     * For software encoding, the PCM capabilities are returned.
-     * For hardware encoding, the supported codecs and their capabilities are
-     * returned.
-     *
-     * @param sessionType The session type (e.g.
-     *    A2DP_SOFTWARE_ENCODING_DATAPATH).
-     * @return audioCapabilities A list containing all the capabilities
-     *    supported by the sesson type. The capabilities is a list of
-     *    available options when configuring the codec for the session.
-     *    For software encoding it is the PCM data rate.
-     *    For hardware encoding it is the list of supported codecs and their
-     *    capabilities.
-     *    If a provider isn't supported, an empty list should be returned.
-     *    Note: Only one entry should exist per codec when using hardware
-     *    encoding.
-     */
-     getProviderCapabilities_2_2(SessionType sessionType)
-         generates (vec<AudioCapabilities> audioCapabilities);
-};
diff --git a/bluetooth/audio/2.2/OWNERS b/bluetooth/audio/2.2/OWNERS
deleted file mode 100644
index 84f5b1e..0000000
--- a/bluetooth/audio/2.2/OWNERS
+++ /dev/null
@@ -1,3 +0,0 @@
-aliceypkuo@google.com
-ugoyu@google.com
-sattiraju@google.com
diff --git a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.cpp b/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.cpp
deleted file mode 100644
index 2a6d93a..0000000
--- a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderA2dpOffload"
-
-#include "A2dpOffloadAudioProvider.h"
-
-#include <android-base/logging.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-A2dpOffloadAudioProvider::A2dpOffloadAudioProvider()
-    : BluetoothAudioProvider() {
-  session_type_ = V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH;
-}
-
-bool A2dpOffloadAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  return isValid(static_cast<V2_1::SessionType>(sessionType));
-}
-
-bool A2dpOffloadAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_);
-}
-
-Return<void> A2dpOffloadAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::codecConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsOffloadCodecConfigurationValid(
-                 session_type_, audioConfig.codecConfig())) {
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb);
-}
-
-Return<void> A2dpOffloadAudioProvider::onSessionReady(
-    startSession_cb _hidl_cb) {
-  BluetoothAudioSessionReport_2_2::OnSessionStarted(session_type_, stack_iface_,
-                                                    nullptr, audio_config_);
-  _hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor());
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.h b/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.h
deleted file mode 100644
index 7ccdedc..0000000
--- a/bluetooth/audio/2.2/default/A2dpOffloadAudioProvider.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-class A2dpOffloadAudioProvider : public BluetoothAudioProvider {
- public:
-  A2dpOffloadAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-
- private:
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp b/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
deleted file mode 100644
index eb87178..0000000
--- a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderA2dpSoftware"
-
-#include "A2dpSoftwareAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
-
-// Here the buffer size is based on SBC
-static constexpr uint32_t kPcmFrameSize = 4;  // 16 bits per sample / stereo
-// SBC is 128, and here we choose the LCM of 16, 24, and 32
-static constexpr uint32_t kPcmFrameCount = 96;
-static constexpr uint32_t kRtpFrameSize = kPcmFrameSize * kPcmFrameCount;
-// The max counts by 1 tick (20ms) for SBC is about 7. Since using 96 for the
-// PCM counts, here we just choose a greater number
-static constexpr uint32_t kRtpFrameCount = 10;
-static constexpr uint32_t kBufferSize = kRtpFrameSize * kRtpFrameCount;
-static constexpr uint32_t kBufferCount = 2;  // double buffer
-static constexpr uint32_t kDataMqSize = kBufferSize * kBufferCount;
-
-A2dpSoftwareAudioProvider::A2dpSoftwareAudioProvider()
-    : BluetoothAudioProvider(), mDataMQ(nullptr) {
-  LOG(INFO) << __func__ << " - size of audio buffer " << kDataMqSize
-            << " byte(s)";
-  std::unique_ptr<DataMQ> tempDataMQ(
-      new DataMQ(kDataMqSize, /* EventFlag */ true));
-  if (tempDataMQ && tempDataMQ->isValid()) {
-    mDataMQ = std::move(tempDataMQ);
-    session_type_ = V2_1::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH;
-  } else {
-    ALOGE_IF(!tempDataMQ, "failed to allocate data MQ");
-    ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "data MQ is invalid");
-  }
-}
-
-bool A2dpSoftwareAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  return isValid(static_cast<V2_1::SessionType>(sessionType));
-}
-
-bool A2dpSoftwareAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_ && mDataMQ && mDataMQ->isValid());
-}
-
-Return<void> A2dpSoftwareAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsSoftwarePcmConfigurationValid(
-                 audioConfig.pcmConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
-                 << toString(audioConfig.pcmConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb);
-}
-
-Return<void> A2dpSoftwareAudioProvider::onSessionReady(
-    startSession_cb _hidl_cb) {
-  if (mDataMQ && mDataMQ->isValid()) {
-    BluetoothAudioSessionReport_2_2::OnSessionStarted(
-        session_type_, stack_iface_, mDataMQ->getDesc(), audio_config_);
-    _hidl_cb(BluetoothAudioStatus::SUCCESS, *mDataMQ->getDesc());
-  } else {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-  }
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.h b/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.h
deleted file mode 100644
index ac3aece..0000000
--- a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-class A2dpSoftwareAudioProvider : public BluetoothAudioProvider {
- public:
-  A2dpSoftwareAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-
- private:
-  // audio data queue for software encoding
-  std::unique_ptr<DataMQ> mDataMQ;
-
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/Android.bp b/bluetooth/audio/2.2/default/Android.bp
deleted file mode 100644
index 7a5ae75..0000000
--- a/bluetooth/audio/2.2/default/Android.bp
+++ /dev/null
@@ -1,37 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "hardware_interfaces_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["hardware_interfaces_license"],
-}
-
-cc_library_shared {
-    name: "android.hardware.bluetooth.audio@2.2-impl",
-    defaults: ["hidl_defaults"],
-    vendor: true,
-    relative_install_path: "hw",
-    srcs: [
-        "BluetoothAudioProvidersFactory.cpp",
-        "BluetoothAudioProvider.cpp",
-        "A2dpOffloadAudioProvider.cpp",
-        "A2dpSoftwareAudioProvider.cpp",
-        "HearingAidAudioProvider.cpp",
-        "LeAudioAudioProvider.cpp",
-        "LeAudioOffloadAudioProvider.cpp",
-    ],
-    header_libs: ["libhardware_headers"],
-    shared_libs: [
-        "android.hardware.bluetooth.audio@2.0",
-        "android.hardware.bluetooth.audio@2.1",
-        "android.hardware.bluetooth.audio@2.2",
-        "libbase",
-        "libbluetooth_audio_session",
-        "libcutils",
-        "libfmq",
-        "libhidlbase",
-        "liblog",
-        "libutils",
-    ],
-}
diff --git a/bluetooth/audio/2.2/default/AudioPort_2_0_to_2_2_Wrapper.h b/bluetooth/audio/2.2/default/AudioPort_2_0_to_2_2_Wrapper.h
deleted file mode 100644
index c5613fb..0000000
--- a/bluetooth/audio/2.2/default/AudioPort_2_0_to_2_2_Wrapper.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/types.h>
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::sp;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::audio::common::V5_0::SinkMetadata;
-using ::android::hardware::audio::common::V5_0::SourceMetadata;
-using ::android::hardware::bluetooth::audio::V2_2::IBluetoothAudioPort;
-
-class AudioPort_2_0_to_2_2_Wrapper : public V2_2::IBluetoothAudioPort {
- public:
-  AudioPort_2_0_to_2_2_Wrapper(const sp<V2_0::IBluetoothAudioPort>& port) {
-    this->port = port;
-  }
-
-  Return<void> startStream() override { return port->startStream(); }
-  Return<void> suspendStream() override { return port->suspendStream(); }
-  Return<void> stopStream() override { return port->stopStream(); }
-  Return<void> getPresentationPosition(
-      getPresentationPosition_cb _hidl_cb) override {
-    return port->getPresentationPosition(_hidl_cb);
-  }
-  Return<void> updateMetadata(const SourceMetadata& sourceMetadata) override {
-    return port->updateMetadata(sourceMetadata);
-  }
-  Return<void> updateSinkMetadata(const SinkMetadata&) override {
-    // DO NOTHING, 2.0 AudioPort doesn't support sink metadata updates
-    return Void();
-  }
-
-  sp<V2_0::IBluetoothAudioPort> port;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
\ No newline at end of file
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp b/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
deleted file mode 100644
index 62511e9..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderStub"
-
-#include "BluetoothAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "AudioPort_2_0_to_2_2_Wrapper.h"
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-using ::android::hardware::Void;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-void BluetoothAudioDeathRecipient::serviceDied(
-    uint64_t cookie __unused,
-    const wp<::android::hidl::base::V1_0::IBase>& who __unused) {
-  LOG(ERROR) << "BluetoothAudioDeathRecipient::" << __func__
-             << " - BluetoothAudio Service died";
-  provider_->endSession();
-}
-
-BluetoothAudioProvider::BluetoothAudioProvider()
-    : death_recipient_(new BluetoothAudioDeathRecipient(this)),
-      session_type_(V2_1::SessionType::UNKNOWN),
-      audio_config_({}) {}
-
-Return<void> BluetoothAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_0::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  AudioConfiguration audioConfig_2_2;
-
-  if (audioConfig.getDiscriminator() ==
-      V2_0::AudioConfiguration::hidl_discriminator::pcmConfig) {
-    audioConfig_2_2.pcmConfig(
-        {.sampleRate =
-             static_cast<V2_1::SampleRate>(audioConfig.pcmConfig().sampleRate),
-         .channelMode = audioConfig.pcmConfig().channelMode,
-         .bitsPerSample = audioConfig.pcmConfig().bitsPerSample,
-         .dataIntervalUs = 0});
-  } else {
-    audioConfig_2_2.codecConfig(audioConfig.codecConfig());
-  }
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> BluetoothAudioProvider::startSession_2_1(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  AudioConfiguration audioConfig_2_2;
-  if (audioConfig.getDiscriminator() ==
-      V2_1::AudioConfiguration::hidl_discriminator::leAudioCodecConfig) {
-    audioConfig_2_2.leAudioConfig().mode = LeAudioMode::UNKNOWN;
-    audioConfig_2_2.leAudioConfig().config.unicastConfig() = {
-        .streamMap = {{
-            .streamHandle = 0xFFFF,
-            .audioChannelAllocation =
-                audioConfig.leAudioCodecConfig().audioChannelAllocation,
-        }},
-        .peerDelay = 0,
-        .lc3Config = audioConfig.leAudioCodecConfig().lc3Config};
-  } else if (audioConfig.getDiscriminator() ==
-             V2_1::AudioConfiguration::hidl_discriminator::pcmConfig) {
-    audioConfig_2_2.pcmConfig(audioConfig.pcmConfig());
-  } else {
-    audioConfig_2_2.codecConfig(audioConfig.codecConfig());
-  }
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> BluetoothAudioProvider::startSession_2_2(
-    const sp<V2_2::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  if (hostIf == nullptr) {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-    return Void();
-  }
-
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  audio_config_ = audioConfig;
-  stack_iface_ = hostIf;
-  stack_iface_->linkToDeath(death_recipient_, 0);
-
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", AudioConfiguration=[" << toString(audio_config_) << "]";
-
-  onSessionReady(_hidl_cb);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::streamStarted(
-    BluetoothAudioStatus status) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", status=" << toString(status);
-
-  /**
-   * Streaming on control path has started,
-   * HAL server should start the streaming on data path.
-   */
-  if (stack_iface_) {
-    BluetoothAudioSessionReport_2_2::ReportControlStatus(session_type_, true,
-                                                         status);
-  } else {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
-                 << ", status=" << toString(status) << " has NO session";
-  }
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::streamSuspended(
-    BluetoothAudioStatus status) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", status=" << toString(status);
-
-  /**
-   * Streaming on control path has suspend,
-   * HAL server should suspend the streaming on data path.
-   */
-  if (stack_iface_) {
-    BluetoothAudioSessionReport_2_2::ReportControlStatus(session_type_, false,
-                                                         status);
-  } else {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
-                 << ", status=" << toString(status) << " has NO session";
-  }
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::endSession() {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
-  if (stack_iface_) {
-    BluetoothAudioSessionReport_2_2::OnSessionEnded(session_type_);
-    stack_iface_->unlinkToDeath(death_recipient_);
-  } else {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " has NO session";
-  }
-
-  /**
-   * Clean up the audio platform as remote audio device is no
-   * longer active
-   */
-  stack_iface_ = nullptr;
-  audio_config_ = {};
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::updateAudioConfiguration(
-    const AudioConfiguration& audioConfig) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
-  if (stack_iface_ == nullptr) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " has NO session";
-    return Void();
-  }
-
-  if (audioConfig.getDiscriminator() != audio_config_.getDiscriminator()) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " audio config type is not match";
-    return Void();
-  }
-
-  audio_config_ = audioConfig;
-  BluetoothAudioSessionReport_2_2::ReportAudioConfigChanged(session_type_,
-                                                            audio_config_);
-
-  return Void();
-}
-
-Return<void> BluetoothAudioProvider::setLowLatencyModeAllowed(bool allowed) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
-  if (stack_iface_ == nullptr) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-              << " has NO session";
-    return Void();
-  }
-  LOG(INFO) << __func__ << " allowed: " << allowed;
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvider.h b/bluetooth/audio/2.2/default/BluetoothAudioProvider.h
deleted file mode 100644
index 90c158e..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvider.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/IBluetoothAudioProvider.h>
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::sp;
-using ::android::hardware::bluetooth::audio::V2_2::IBluetoothAudioPort;
-
-using BluetoothAudioStatus =
-    ::android::hardware::bluetooth::audio::V2_0::Status;
-
-class BluetoothAudioDeathRecipient;
-
-class BluetoothAudioProvider : public IBluetoothAudioProvider {
- public:
-  BluetoothAudioProvider();
-  ~BluetoothAudioProvider() = default;
-
-  virtual bool isValid(const V2_1::SessionType& sessionType) = 0;
-  virtual bool isValid(const V2_0::SessionType& sessionType) = 0;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-  Return<void> startSession_2_1(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                                const V2_1::AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
-                                const AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-  Return<void> streamStarted(BluetoothAudioStatus status) override;
-  Return<void> streamSuspended(BluetoothAudioStatus status) override;
-  Return<void> endSession() override;
-  Return<void> updateAudioConfiguration(
-      const AudioConfiguration& audioConfig) override;
-
-  Return<void> setLowLatencyModeAllowed(bool allowed) override;
-
- protected:
-  sp<BluetoothAudioDeathRecipient> death_recipient_;
-
-  V2_1::SessionType session_type_;
-  AudioConfiguration audio_config_;
-  sp<V2_2::IBluetoothAudioPort> stack_iface_;
-
-  virtual Return<void> onSessionReady(startSession_cb _hidl_cb) = 0;
-};
-
-class BluetoothAudioDeathRecipient : public hidl_death_recipient {
- public:
-  BluetoothAudioDeathRecipient(const sp<BluetoothAudioProvider> provider)
-      : provider_(provider) {}
-
-  virtual void serviceDied(
-      uint64_t cookie,
-      const wp<::android::hidl::base::V1_0::IBase>& who) override;
-
- private:
-  sp<BluetoothAudioProvider> provider_;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp b/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
deleted file mode 100644
index 490a436..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProvidersFactory"
-
-#include "BluetoothAudioProvidersFactory.h"
-
-#include <android-base/logging.h>
-
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::hidl_vec;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::CodecCapabilities;
-
-A2dpSoftwareAudioProvider
-    BluetoothAudioProvidersFactory::a2dp_software_provider_instance_;
-A2dpOffloadAudioProvider
-    BluetoothAudioProvidersFactory::a2dp_offload_provider_instance_;
-HearingAidAudioProvider
-    BluetoothAudioProvidersFactory::hearing_aid_provider_instance_;
-LeAudioOutputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_output_provider_instance_;
-LeAudioOffloadOutputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_offload_output_provider_instance_;
-LeAudioInputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_input_provider_instance_;
-LeAudioOffloadInputAudioProvider
-    BluetoothAudioProvidersFactory::leaudio_offload_input_provider_instance_;
-
-Return<void> BluetoothAudioProvidersFactory::openProvider(
-    const V2_0::SessionType sessionType, openProvider_cb _hidl_cb) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
-  BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
-  BluetoothAudioProvider* provider = nullptr;
-
-  switch (sessionType) {
-    case V2_0::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
-      provider = &a2dp_software_provider_instance_;
-      break;
-    case V2_0::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
-      provider = &a2dp_offload_provider_instance_;
-      break;
-    case V2_0::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
-      provider = &hearing_aid_provider_instance_;
-      break;
-    default:
-      status = BluetoothAudioStatus::FAILURE;
-  }
-
-  if (provider == nullptr || !provider->isValid(sessionType)) {
-    provider = nullptr;
-    status = BluetoothAudioStatus::FAILURE;
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
-               << ", status=" << toString(status);
-  }
-
-  _hidl_cb(status, provider);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::openProvider_2_1(
-    const V2_1::SessionType sessionType, openProvider_2_1_cb _hidl_cb) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
-  BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
-  BluetoothAudioProvider* provider = nullptr;
-
-  switch (sessionType) {
-    case V2_1::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
-      provider = &a2dp_software_provider_instance_;
-      break;
-    case V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
-      provider = &a2dp_offload_provider_instance_;
-      break;
-    case V2_1::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
-      provider = &hearing_aid_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH:
-      provider = &leaudio_output_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH:
-      provider = &leaudio_input_provider_instance_;
-      break;
-    default:
-      status = BluetoothAudioStatus::FAILURE;
-  }
-
-  if (provider == nullptr || !provider->isValid(sessionType)) {
-    provider = nullptr;
-    status = BluetoothAudioStatus::FAILURE;
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
-               << ", status=" << toString(status);
-  }
-
-  _hidl_cb(status, provider);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::openProvider_2_2(
-    const V2_1::SessionType sessionType, openProvider_2_2_cb _hidl_cb) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
-  BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
-  BluetoothAudioProvider* provider = nullptr;
-
-  switch (sessionType) {
-    case V2_1::SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
-      provider = &a2dp_software_provider_instance_;
-      break;
-    case V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
-      provider = &a2dp_offload_provider_instance_;
-      break;
-    case V2_1::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
-      provider = &hearing_aid_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH:
-      provider = &leaudio_output_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
-      provider = &leaudio_offload_output_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH:
-      provider = &leaudio_input_provider_instance_;
-      break;
-    case V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
-      provider = &leaudio_offload_input_provider_instance_;
-      break;
-    default:
-      status = BluetoothAudioStatus::FAILURE;
-  }
-
-  if (provider == nullptr || !provider->isValid(sessionType)) {
-    provider = nullptr;
-    status = BluetoothAudioStatus::FAILURE;
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
-               << ", status=" << toString(status);
-  }
-
-  _hidl_cb(status, provider);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities(
-    const V2_0::SessionType sessionType, getProviderCapabilities_cb _hidl_cb) {
-  hidl_vec<V2_0::AudioCapabilities> audio_capabilities =
-      hidl_vec<V2_0::AudioCapabilities>(0);
-  if (sessionType == V2_0::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    std::vector<CodecCapabilities> db_codec_capabilities =
-        android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType != V2_0::SessionType::UNKNOWN) {
-    std::vector<::android::hardware::bluetooth::audio::V2_0::PcmParameters>
-        db_pcm_capabilities =
-            android::bluetooth::audio::GetSoftwarePcmCapabilities();
-    if (db_pcm_capabilities.size() == 1) {
-      audio_capabilities.resize(1);
-      audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
-    }
-  }
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
-            << " supports " << audio_capabilities.size() << " codecs";
-  _hidl_cb(audio_capabilities);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities_2_1(
-    const V2_1::SessionType sessionType,
-    getProviderCapabilities_2_1_cb _hidl_cb) {
-  hidl_vec<V2_1::AudioCapabilities> audio_capabilities =
-      hidl_vec<V2_1::AudioCapabilities>(0);
-  if (sessionType == V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    std::vector<CodecCapabilities> db_codec_capabilities =
-        android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType != V2_1::SessionType::UNKNOWN) {
-    std::vector<V2_1::PcmParameters> db_pcm_capabilities =
-        android::bluetooth::audio::GetSoftwarePcmCapabilities_2_1();
-    if (db_pcm_capabilities.size() == 1) {
-      audio_capabilities.resize(1);
-      audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
-    }
-  }
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
-            << " supports " << audio_capabilities.size() << " codecs";
-  _hidl_cb(audio_capabilities);
-  return Void();
-}
-
-Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities_2_2(
-    const V2_1::SessionType sessionType,
-    getProviderCapabilities_2_2_cb _hidl_cb) {
-  hidl_vec<V2_2::AudioCapabilities> audio_capabilities =
-      hidl_vec<V2_2::AudioCapabilities>(0);
-  if (sessionType == V2_1::SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    std::vector<CodecCapabilities> db_codec_capabilities =
-        android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType == V2_1::SessionType::
-                                LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-             sessionType == V2_1::SessionType::
-                                LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    std::vector<LeAudioCodecCapabilitiesSetting> db_codec_capabilities =
-        android::bluetooth::audio::GetLeAudioOffloadCodecCapabilities(
-            sessionType);
-    if (db_codec_capabilities.size()) {
-      audio_capabilities.resize(db_codec_capabilities.size());
-      for (int i = 0; i < db_codec_capabilities.size(); ++i) {
-        audio_capabilities[i].leAudioCapabilities(db_codec_capabilities[i]);
-      }
-    }
-  } else if (sessionType != V2_1::SessionType::UNKNOWN) {
-    std::vector<V2_1::PcmParameters> db_pcm_capabilities =
-        android::bluetooth::audio::GetSoftwarePcmCapabilities_2_1();
-    if (db_pcm_capabilities.size() == 1) {
-      audio_capabilities.resize(1);
-      audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
-    }
-  }
-  LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
-            << " supports " << audio_capabilities.size() << " codecs";
-  _hidl_cb(audio_capabilities);
-  return Void();
-}
-
-IBluetoothAudioProvidersFactory* HIDL_FETCH_IBluetoothAudioProvidersFactory(
-    const char* /* name */) {
-  return new BluetoothAudioProvidersFactory();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.h b/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.h
deleted file mode 100644
index 4f549d9..0000000
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/IBluetoothAudioProvidersFactory.h>
-
-#include "A2dpOffloadAudioProvider.h"
-#include "A2dpSoftwareAudioProvider.h"
-#include "BluetoothAudioProvider.h"
-#include "HearingAidAudioProvider.h"
-#include "LeAudioAudioProvider.h"
-#include "LeAudioOffloadAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-class BluetoothAudioProvidersFactory : public IBluetoothAudioProvidersFactory {
- public:
-  BluetoothAudioProvidersFactory() {}
-
-  Return<void> openProvider(const V2_0::SessionType sessionType,
-                            openProvider_cb _hidl_cb) override;
-
-  Return<void> getProviderCapabilities(
-      const V2_0::SessionType sessionType,
-      getProviderCapabilities_cb _hidl_cb) override;
-
-  Return<void> openProvider_2_1(const V2_1::SessionType sessionType,
-                                openProvider_2_1_cb _hidl_cb) override;
-
-  Return<void> openProvider_2_2(const V2_1::SessionType sessionType,
-                                openProvider_2_2_cb _hidl_cb) override;
-
-  Return<void> getProviderCapabilities_2_1(
-      const V2_1::SessionType sessionType,
-      getProviderCapabilities_2_1_cb _hidl_cb) override;
-
-  Return<void> getProviderCapabilities_2_2(
-      const V2_1::SessionType sessionType,
-      getProviderCapabilities_2_2_cb _hidl_cb) override;
-
- private:
-  static A2dpSoftwareAudioProvider a2dp_software_provider_instance_;
-  static A2dpOffloadAudioProvider a2dp_offload_provider_instance_;
-  static HearingAidAudioProvider hearing_aid_provider_instance_;
-  static LeAudioOutputAudioProvider leaudio_output_provider_instance_;
-  static LeAudioInputAudioProvider leaudio_input_provider_instance_;
-  static LeAudioOffloadOutputAudioProvider
-      leaudio_offload_output_provider_instance_;
-  static LeAudioOffloadInputAudioProvider
-      leaudio_offload_input_provider_instance_;
-};
-
-extern "C" IBluetoothAudioProvidersFactory*
-HIDL_FETCH_IBluetoothAudioProvidersFactory(const char* name);
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp b/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
deleted file mode 100644
index 25e49a1..0000000
--- a/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderHearingAid"
-
-#include "HearingAidAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
-
-static constexpr uint32_t kPcmFrameSize = 4;  // 16 bits per sample / stereo
-static constexpr uint32_t kPcmFrameCount = 128;
-static constexpr uint32_t kRtpFrameSize = kPcmFrameSize * kPcmFrameCount;
-static constexpr uint32_t kRtpFrameCount = 7;  // max counts by 1 tick (20ms)
-static constexpr uint32_t kBufferSize = kRtpFrameSize * kRtpFrameCount;
-static constexpr uint32_t kBufferCount = 1;  // single buffer
-static constexpr uint32_t kDataMqSize = kBufferSize * kBufferCount;
-
-HearingAidAudioProvider::HearingAidAudioProvider()
-    : BluetoothAudioProvider(), mDataMQ(nullptr) {
-  LOG(INFO) << __func__ << " - size of audio buffer " << kDataMqSize
-            << " byte(s)";
-  std::unique_ptr<DataMQ> tempDataMQ(
-      new DataMQ(kDataMqSize, /* EventFlag */ true));
-  if (tempDataMQ && tempDataMQ->isValid()) {
-    mDataMQ = std::move(tempDataMQ);
-    session_type_ = V2_1::SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH;
-  } else {
-    ALOGE_IF(!tempDataMQ, "failed to allocate data MQ");
-    ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "data MQ is invalid");
-  }
-}
-
-bool HearingAidAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  return isValid(static_cast<V2_1::SessionType>(sessionType));
-}
-
-bool HearingAidAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_ && mDataMQ && mDataMQ->isValid());
-}
-
-Return<void> HearingAidAudioProvider::startSession(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsSoftwarePcmConfigurationValid(
-                 audioConfig.pcmConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
-                 << toString(audioConfig.pcmConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb);
-}
-
-Return<void> HearingAidAudioProvider::onSessionReady(startSession_cb _hidl_cb) {
-  if (mDataMQ && mDataMQ->isValid()) {
-    BluetoothAudioSessionReport_2_2::OnSessionStarted(
-        session_type_, stack_iface_, mDataMQ->getDesc(), audio_config_);
-    _hidl_cb(BluetoothAudioStatus::SUCCESS, *mDataMQ->getDesc());
-  } else {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-  }
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/HearingAidAudioProvider.h b/bluetooth/audio/2.2/default/HearingAidAudioProvider.h
deleted file mode 100644
index 63290b5..0000000
--- a/bluetooth/audio/2.2/default/HearingAidAudioProvider.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-class HearingAidAudioProvider : public BluetoothAudioProvider {
- public:
-  HearingAidAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                            const V2_0::AudioConfiguration& audioConfig,
-                            startSession_cb _hidl_cb) override;
-
- private:
-  // audio data queue for software encoding
-  std::unique_ptr<DataMQ> mDataMQ;
-
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
deleted file mode 100644
index a7a0023..0000000
--- a/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderLeAudio"
-
-#include "LeAudioAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "AudioPort_2_0_to_2_2_Wrapper.h"
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
-using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-
-static constexpr uint32_t kBufferOutCount = 2;  // two frame buffer
-static constexpr uint32_t kBufferInCount = 2;   // two frame buffer
-
-LeAudioOutputAudioProvider::LeAudioOutputAudioProvider()
-    : LeAudioAudioProvider() {
-  session_type_ = V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH;
-}
-
-LeAudioInputAudioProvider::LeAudioInputAudioProvider()
-    : LeAudioAudioProvider() {
-  session_type_ = V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH;
-}
-
-LeAudioAudioProvider::LeAudioAudioProvider()
-    : BluetoothAudioProvider(), mDataMQ(nullptr) {}
-
-bool LeAudioAudioProvider::isValid(const V2_0::SessionType& sessionType) {
-  LOG(ERROR) << __func__ << ", invalid session type for Le Audio provider: "
-             << toString(sessionType);
-
-  return false;
-}
-
-bool LeAudioAudioProvider::isValid(const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_);
-}
-
-Return<void> LeAudioAudioProvider::startSession_2_1(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  if (audioConfig.getDiscriminator() !=
-      V2_1::AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  AudioConfiguration audioConfig_2_2;
-  audioConfig_2_2.pcmConfig(
-      {.sampleRate =
-           static_cast<V2_1::SampleRate>(audioConfig.pcmConfig().sampleRate),
-       .channelMode = audioConfig.pcmConfig().channelMode,
-       .bitsPerSample = audioConfig.pcmConfig().bitsPerSample,
-       .dataIntervalUs = 0});
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> LeAudioAudioProvider::startSession_2_2(
-    const sp<V2_2::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::pcmConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  } else if (!android::bluetooth::audio::IsSoftwarePcmConfigurationValid_2_1(
-                 audioConfig.pcmConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
-                 << toString(audioConfig.pcmConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  uint32_t kDataMqSize = 0;
-  switch (audioConfig.pcmConfig().sampleRate) {
-    case SampleRate::RATE_8000:
-      kDataMqSize = 8000;
-      break;
-    case SampleRate::RATE_16000:
-      kDataMqSize = 16000;
-      break;
-    case SampleRate::RATE_24000:
-      kDataMqSize = 24000;
-      break;
-    case SampleRate::RATE_32000:
-      kDataMqSize = 32000;
-      break;
-    case SampleRate::RATE_44100:
-      kDataMqSize = 44100;
-      break;
-    case SampleRate::RATE_48000:
-      kDataMqSize = 48000;
-      break;
-    default:
-      LOG(WARNING) << __func__ << " - Unsupported sampling frequency="
-                   << toString(audioConfig.pcmConfig());
-      _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-               DataMQ::Descriptor());
-      return Void();
-  }
-
-  /* Number of samples per millisecond */
-  kDataMqSize = ceil(kDataMqSize / 1000);
-
-  switch (audioConfig.pcmConfig().channelMode) {
-    case ChannelMode::MONO:
-      break;
-    case ChannelMode::STEREO:
-      kDataMqSize *= 2;
-      break;
-    default:
-      /* This should never happen it would be caught while validating
-       * parameters.
-       */
-      break;
-  }
-
-  switch (audioConfig.pcmConfig().bitsPerSample) {
-    case BitsPerSample::BITS_16:
-      kDataMqSize *= 2;
-      break;
-    case BitsPerSample::BITS_24:
-      kDataMqSize *= 3;
-      break;
-    case BitsPerSample::BITS_32:
-      kDataMqSize *= 4;
-      break;
-    default:
-      /* This should never happen it would be caught while validating
-       * parameters.
-       */
-      break;
-  }
-
-  if (session_type_ == V2_1::SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH)
-    kDataMqSize *= kBufferOutCount;
-  else if (session_type_ ==
-           V2_1::SessionType::LE_AUDIO_SOFTWARE_DECODED_DATAPATH)
-    kDataMqSize *= kBufferInCount;
-  else
-    LOG(WARNING) << __func__ << ", default single buffer used";
-
-  kDataMqSize *= audioConfig.pcmConfig().dataIntervalUs / 1000;
-
-  LOG(INFO) << __func__ << " - size of audio buffer " << kDataMqSize
-            << " byte(s)";
-
-  std::unique_ptr<DataMQ> tempDataMQ(
-      new DataMQ(kDataMqSize, /* EventFlag */ true));
-  if (tempDataMQ && tempDataMQ->isValid()) {
-    mDataMQ = std::move(tempDataMQ);
-  } else {
-    ALOGE_IF(!tempDataMQ, "failed to allocate data MQ");
-    ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "data MQ is invalid");
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession_2_2(hostIf, audioConfig,
-                                                  _hidl_cb);
-}
-
-Return<void> LeAudioAudioProvider::onSessionReady(startSession_cb _hidl_cb) {
-  if (mDataMQ && mDataMQ->isValid()) {
-    BluetoothAudioSessionReport_2_2::OnSessionStarted(
-        session_type_, stack_iface_, mDataMQ->getDesc(), audio_config_);
-    _hidl_cb(BluetoothAudioStatus::SUCCESS, *mDataMQ->getDesc());
-  } else {
-    _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
-  }
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioAudioProvider.h b/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
deleted file mode 100644
index 3de1724..0000000
--- a/bluetooth/audio/2.2/default/LeAudioAudioProvider.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/types.h>
-#include <fmq/MessageQueue.h>
-#include <hidl/MQDescriptor.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::hardware::kSynchronizedReadWrite;
-using ::android::hardware::MessageQueue;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-class LeAudioAudioProvider : public BluetoothAudioProvider {
- public:
-  LeAudioAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession_2_1(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                                const V2_1::AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
-  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
-                                const AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
- private:
-  /** queue for software encodec/decoded audio data */
-  std::unique_ptr<DataMQ> mDataMQ;
-
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-class LeAudioOutputAudioProvider : public LeAudioAudioProvider {
- public:
-  LeAudioOutputAudioProvider();
-};
-
-class LeAudioInputAudioProvider : public LeAudioAudioProvider {
- public:
-  LeAudioInputAudioProvider();
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
deleted file mode 100644
index 2b0c02f..0000000
--- a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderLeAudioOffload"
-
-#include "LeAudioOffloadAudioProvider.h"
-
-#include <android-base/logging.h>
-
-#include "AudioPort_2_0_to_2_2_Wrapper.h"
-#include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
-using ::android::hardware::Void;
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
-using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-
-using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
-
-LeAudioOffloadOutputAudioProvider::LeAudioOffloadOutputAudioProvider()
-    : LeAudioOffloadAudioProvider() {
-  session_type_ =
-      V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
-}
-
-LeAudioOffloadInputAudioProvider::LeAudioOffloadInputAudioProvider()
-    : LeAudioOffloadAudioProvider() {
-  session_type_ =
-      V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH;
-}
-
-LeAudioOffloadAudioProvider::LeAudioOffloadAudioProvider()
-    : BluetoothAudioProvider() {}
-
-bool LeAudioOffloadAudioProvider::isValid(
-    const V2_0::SessionType& sessionType) {
-  LOG(ERROR) << __func__
-             << ", invalid session type for Offloaded Le Audio provider: "
-             << toString(sessionType);
-
-  return false;
-}
-
-bool LeAudioOffloadAudioProvider::isValid(
-    const V2_1::SessionType& sessionType) {
-  return (sessionType == session_type_);
-}
-
-Return<void> LeAudioOffloadAudioProvider::startSession_2_1(
-    const sp<V2_0::IBluetoothAudioPort>& hostIf,
-    const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  if (audioConfig.getDiscriminator() !=
-      V2_1::AudioConfiguration::hidl_discriminator::leAudioCodecConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  AudioConfiguration audioConfig_2_2;
-  audioConfig_2_2.leAudioConfig().mode = LeAudioMode::UNKNOWN;
-  audioConfig_2_2.leAudioConfig().config.unicastConfig() = {
-      .streamMap = {{
-          .streamHandle = 0xFFFF,
-          .audioChannelAllocation =
-              audioConfig.leAudioCodecConfig().audioChannelAllocation,
-      }},
-      .peerDelay = 0,
-      .lc3Config = audioConfig.leAudioCodecConfig().lc3Config};
-
-  sp<V2_2::IBluetoothAudioPort> hostIf_2_2 =
-      new AudioPort_2_0_to_2_2_Wrapper(hostIf);
-  return startSession_2_2(hostIf_2_2, audioConfig_2_2, _hidl_cb);
-}
-
-Return<void> LeAudioOffloadAudioProvider::startSession_2_2(
-    const sp<V2_2::IBluetoothAudioPort>& hostIf,
-    const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
-  /**
-   * Initialize the audio platform if audioConfiguration is supported.
-   * Save the IBluetoothAudioPort interface, so that it can be used
-   * later to send stream control commands to the HAL client, based on
-   * interaction with Audio framework.
-   */
-  if (audioConfig.getDiscriminator() !=
-      AudioConfiguration::hidl_discriminator::leAudioConfig) {
-    LOG(WARNING) << __func__
-                 << " - Invalid Audio Configuration=" << toString(audioConfig);
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  if (!android::bluetooth::audio::IsOffloadLeAudioConfigurationValid(
-          session_type_, audioConfig.leAudioConfig())) {
-    LOG(WARNING) << __func__ << " - Unsupported LC3 Offloaded Configuration="
-                 << toString(audioConfig.leAudioConfig());
-    _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
-             DataMQ::Descriptor());
-    return Void();
-  }
-
-  return BluetoothAudioProvider::startSession_2_2(hostIf, audioConfig,
-                                                  _hidl_cb);
-}
-
-Return<void> LeAudioOffloadAudioProvider::onSessionReady(
-    startSession_cb _hidl_cb) {
-  BluetoothAudioSessionReport_2_2::OnSessionStarted(session_type_, stack_iface_,
-                                                    nullptr, audio_config_);
-  _hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor());
-  return Void();
-}
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.h b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.h
deleted file mode 100644
index fe58de5..0000000
--- a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include "BluetoothAudioProvider.h"
-
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-namespace V2_2 {
-namespace implementation {
-
-class LeAudioOffloadAudioProvider : public BluetoothAudioProvider {
- public:
-  LeAudioOffloadAudioProvider();
-
-  bool isValid(const V2_1::SessionType& sessionType) override;
-  bool isValid(const V2_0::SessionType& sessionType) override;
-
-  Return<void> startSession_2_1(const sp<V2_0::IBluetoothAudioPort>& hostIf,
-                                const V2_1::AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
-  Return<void> startSession_2_2(const sp<V2_2::IBluetoothAudioPort>& hostIf,
-                                const AudioConfiguration& audioConfig,
-                                startSession_cb _hidl_cb) override;
-
- private:
-  Return<void> onSessionReady(startSession_cb _hidl_cb) override;
-};
-
-class LeAudioOffloadOutputAudioProvider : public LeAudioOffloadAudioProvider {
- public:
-  LeAudioOffloadOutputAudioProvider();
-};
-
-class LeAudioOffloadInputAudioProvider : public LeAudioOffloadAudioProvider {
- public:
-  LeAudioOffloadInputAudioProvider();
-};
-
-}  // namespace implementation
-}  // namespace V2_2
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
diff --git a/bluetooth/audio/2.2/default/OWNERS b/bluetooth/audio/2.2/default/OWNERS
deleted file mode 100644
index 17ea464..0000000
--- a/bluetooth/audio/2.2/default/OWNERS
+++ /dev/null
@@ -1,4 +0,0 @@
-include platform/packages/modules/Bluetooth:/OWNERS
-
-cheneyni@google.com
-aliceypkuo@google.com
\ No newline at end of file
diff --git a/bluetooth/audio/2.2/types.hal b/bluetooth/audio/2.2/types.hal
deleted file mode 100644
index 6755899..0000000
--- a/bluetooth/audio/2.2/types.hal
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.hardware.bluetooth.audio@2.2;
-
-import @2.1::Lc3Parameters;
-import @2.1::PcmParameters;
-import @2.0::CodecConfiguration;
-import @2.0::CodecCapabilities;
-import @2.1::CodecType;
-
-enum LeAudioMode : uint8_t {
-    UNKNOWN = 0x00,
-    UNICAST = 0x01,
-    BROADCAST = 0x02,
-};
-
-enum AudioLocation : uint8_t {
-  UNKNOWN = 0,
-  FRONT_LEFT = 1,
-  FRONT_RIGHT = 2,
-};
-
-struct UnicastStreamMap {
-    /* The connection handle used for a unicast or a broadcast group. */
-    uint16_t streamHandle;
-    /* Audio channel allocation is  a bit field, each enabled bit means that given audio direction,
-     * i.e. "left", or "right" is used. Ordering of audio channels comes from the least significant
-     * bit to the most significant bit. */
-    uint32_t audioChannelAllocation;
-};
-
-struct BroadcastStreamMap {
-    /* The connection handle used for a unicast or a broadcast group. */
-    uint16_t streamHandle;
-    /* Audio channel allocation is  a bit field, each enabled bit means that given audio direction,
-     * i.e. "left", or "right" is used. Ordering of audio channels comes from the least significant
-     * bit to the most significant bit. */
-    uint32_t audioChannelAllocation;
-    Lc3Parameters lc3Config;
-};
-
-struct UnicastConfig {
-    vec<UnicastStreamMap> streamMap;
-    uint32_t peerDelay;
-    Lc3Parameters lc3Config;
-};
-
-struct BroadcastConfig {
-    vec<BroadcastStreamMap> streamMap;
-};
-
-struct LeAudioConfiguration {
-    /* The mode of the LE audio */
-    LeAudioMode mode;
-    safe_union CodecConfig {
-        UnicastConfig unicastConfig;
-        BroadcastConfig broadcastConfig;
-    } config;
-};
-
-/** Used to configure either a Hardware or Software Encoding session based on session type */
-safe_union AudioConfiguration {
-    PcmParameters pcmConfig;
-    CodecConfiguration codecConfig;
-    LeAudioConfiguration leAudioConfig;
-};
-
-/** Used to specify the capabilities of the different session types */
-safe_union AudioCapabilities {
-    PcmParameters pcmCapabilities;
-    CodecCapabilities codecCapabilities;
-    LeAudioCodecCapabilitiesSetting leAudioCapabilities;
-};
-
-/**
- * Used to specify the le audio capabilities for unicast and broadcast hardware offload.
- */
-struct LeAudioCodecCapabilitiesSetting{
-    UnicastCapability unicastEncodeCapability;
-    UnicastCapability unicastDecodeCapability;
-    BroadcastCapability broadcastCapability;
-};
-
-/**
- * Used to specify the le audio unicast codec capabilities for hardware offload.
- */
-struct UnicastCapability {
-    CodecType codecType;
-    AudioLocation supportedChannel;
-
-    // The number of connected device
-    uint8_t deviceCount;
-
-    // Supported channel count for each device
-    uint8_t channelCountPerDevice;
-
-    // Should use safe union when there is more than one codec
-    Lc3Parameters capabilities;
-};
-
-/**
- * Used to specify the le audio broadcast codec capabilities for hardware offload.
- */
-struct BroadcastCapability {
-    CodecType codecType;
-    AudioLocation supportedChannel;
-
-    // Supported channel count for each stream
-    uint8_t channelCountPerStream;
-
-    // Should use safe union when there is more than one codec
-    vec<Lc3Parameters> capabilities;
-};
diff --git a/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
index 90ec8cb..0407751 100644
--- a/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
+++ b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
@@ -1390,7 +1390,7 @@
  * stopped
  */
 TEST_P(BluetoothAudioProviderLeAudioBroadcastSoftwareAidl,
-       DISABLED_OpenLeAudioOutputSoftwareProvider) {}
+       OpenLeAudioOutputSoftwareProvider) {}
 
 /**
  * Test whether each provider of type
@@ -1398,7 +1398,7 @@
  * stopped with different PCM config
  */
 TEST_P(BluetoothAudioProviderLeAudioBroadcastSoftwareAidl,
-       DISABLED_StartAndEndLeAudioOutputSessionWithPossiblePcmConfig) {
+       StartAndEndLeAudioOutputSessionWithPossiblePcmConfig) {
   for (auto sample_rate : le_audio_output_sample_rates_) {
     for (auto bits_per_sample : le_audio_output_bits_per_samples_) {
       for (auto channel_mode : le_audio_output_channel_modes_) {
@@ -1545,7 +1545,8 @@
             lc3_config);
     DataMQDesc mq_desc;
     auto aidl_retval = audio_provider_->startSession(
-        audio_port_, AudioConfiguration(le_audio_broadcast_config), &mq_desc);
+        audio_port_, AudioConfiguration(le_audio_broadcast_config),
+        latency_modes, &mq_desc);
 
     ASSERT_TRUE(aidl_retval.isOk());
     EXPECT_TRUE(audio_provider_->endSession().isOk());
@@ -1578,7 +1579,8 @@
             lc3_config);
     DataMQDesc mq_desc;
     auto aidl_retval = audio_provider_->startSession(
-        audio_port_, AudioConfiguration(le_audio_broadcast_config), &mq_desc);
+        audio_port_, AudioConfiguration(le_audio_broadcast_config),
+        latency_modes, &mq_desc);
 
     // AIDL call should fail on invalid codec
     ASSERT_FALSE(aidl_retval.isOk());
diff --git a/bluetooth/audio/utils/Android.bp b/bluetooth/audio/utils/Android.bp
index 974357e..42f9455 100644
--- a/bluetooth/audio/utils/Android.bp
+++ b/bluetooth/audio/utils/Android.bp
@@ -14,10 +14,8 @@
     srcs: [
         "session/BluetoothAudioSession.cpp",
         "session/BluetoothAudioSession_2_1.cpp",
-        "session/BluetoothAudioSession_2_2.cpp",
         "session/BluetoothAudioSupportedCodecsDB.cpp",
         "session/BluetoothAudioSupportedCodecsDB_2_1.cpp",
-        "session/BluetoothAudioSupportedCodecsDB_2_2.cpp",
     ],
     export_include_dirs: ["session/"],
     header_libs: ["libhardware_headers"],
@@ -25,7 +23,6 @@
         "android.hardware.audio.common@5.0",
         "android.hardware.bluetooth.audio@2.0",
         "android.hardware.bluetooth.audio@2.1",
-        "android.hardware.bluetooth.audio@2.2",
         "libbase",
         "libcutils",
         "libfmq",
@@ -49,7 +46,6 @@
     shared_libs: [
         "android.hardware.bluetooth.audio@2.0",
         "android.hardware.bluetooth.audio@2.1",
-        "android.hardware.bluetooth.audio@2.2",
         "libbase",
         "libcutils",
         "libbinder_ndk",
diff --git a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
index 1ef9365..a4664f1 100644
--- a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
+++ b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
@@ -28,7 +28,6 @@
 #include "../aidl_session/BluetoothAudioSessionControl.h"
 #include "HidlToAidlMiddleware_2_0.h"
 #include "HidlToAidlMiddleware_2_1.h"
-#include "HidlToAidlMiddleware_2_2.h"
 
 namespace aidl {
 namespace android {
@@ -82,15 +81,10 @@
 using Lc3FrameDuration_2_1 =
     ::android::hardware::bluetooth::audio::V2_1::Lc3FrameDuration;
 
-using LeAudioConfig_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration;
-using LeAudioMode_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::LeAudioMode;
-
 std::mutex legacy_callback_lock;
 std::unordered_map<
     SessionType,
-    std::unordered_map<uint16_t, std::shared_ptr<PortStatusCallbacks_2_2>>>
+    std::unordered_map<uint16_t, std::shared_ptr<PortStatusCallbacks_2_0>>>
     legacy_callback_table;
 
 const static std::unordered_map<SessionType_2_1, SessionType>
@@ -461,50 +455,6 @@
   return hidl_lc3_codec_config;
 }
 
-inline LeAudioConfig_2_2 to_hidl_leaudio_config_2_2(
-    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);
-
-  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;
-}
-
-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;
-}
-
 inline AudioConfig_2_1 to_hidl_audio_config_2_1(
     const AudioConfiguration& audio_config) {
   AudioConfig_2_1 hidl_audio_config;
@@ -529,30 +479,6 @@
   return hidl_audio_config;
 }
 
-inline AudioConfig_2_2 to_hidl_audio_config_2_2(
-    const AudioConfiguration& audio_config) {
-  AudioConfig_2_2 hidl_audio_config;
-  switch (audio_config.getTag()) {
-    case AudioConfiguration::pcmConfig:
-      hidl_audio_config.pcmConfig(to_hidl_pcm_config_2_1(
-          audio_config.get<AudioConfiguration::pcmConfig>()));
-      break;
-    case AudioConfiguration::a2dpConfig:
-      hidl_audio_config.codecConfig(to_hidl_codec_config_2_0(
-          audio_config.get<AudioConfiguration::a2dpConfig>()));
-      break;
-    case AudioConfiguration::leAudioConfig:
-      hidl_audio_config.leAudioConfig(to_hidl_leaudio_config_2_2(
-          audio_config.get<AudioConfiguration::leAudioConfig>()));
-      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;
-}
-
 /***
  *
  * 2.0
@@ -568,18 +494,58 @@
 uint16_t HidlToAidlMiddleware_2_0::RegisterControlResultCback(
     const SessionType_2_0& session_type,
     const PortStatusCallbacks_2_0& cbacks) {
-  PortStatusCallbacks_2_2 callback_2_2{
-      .control_result_cb_ = cbacks.control_result_cb_,
-      .session_changed_cb_ = cbacks.session_changed_cb_,
+  LOG(INFO) << __func__ << ": " << toString(session_type);
+  auto aidl_session_type = from_session_type_2_0(session_type);
+  // Pass the exact reference to the lambda
+  auto& session_legacy_callback_table =
+      legacy_callback_table[aidl_session_type];
+  PortStatusCallbacks aidl_callbacks{};
+  if (cbacks.control_result_cb_) {
+    aidl_callbacks.control_result_cb_ =
+        [&session_legacy_callback_table](uint16_t cookie, bool start_resp,
+                                         const BluetoothAudioStatus& status) {
+          if (session_legacy_callback_table.find(cookie) ==
+              session_legacy_callback_table.end()) {
+            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
+            return;
+          }
+          auto& cback = session_legacy_callback_table[cookie];
+          cback->control_result_cb_(cookie, start_resp, to_hidl_status(status));
+        };
+  }
+  if (cbacks.session_changed_cb_) {
+    aidl_callbacks.session_changed_cb_ =
+        [&session_legacy_callback_table](uint16_t cookie) {
+          if (session_legacy_callback_table.find(cookie) ==
+              session_legacy_callback_table.end()) {
+            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
+            return;
+          }
+          auto& cback = session_legacy_callback_table[cookie];
+          cback->session_changed_cb_(cookie);
+        };
   };
-  return HidlToAidlMiddleware_2_2::RegisterControlResultCback(
-      static_cast<SessionType_2_1>(session_type), callback_2_2);
+  auto cookie = BluetoothAudioSessionControl::RegisterControlResultCback(
+      aidl_session_type, aidl_callbacks);
+  {
+    std::lock_guard<std::mutex> guard(legacy_callback_lock);
+    session_legacy_callback_table[cookie] =
+        std::make_shared<PortStatusCallbacks_2_0>(cbacks);
+  }
+  return cookie;
 }
 
 void HidlToAidlMiddleware_2_0::UnregisterControlResultCback(
     const SessionType_2_0& session_type, uint16_t cookie) {
-  HidlToAidlMiddleware_2_2::UnregisterControlResultCback(
-      static_cast<SessionType_2_1>(session_type), cookie);
+  LOG(INFO) << __func__ << ": " << toString(session_type);
+  auto aidl_session_type = from_session_type_2_0(session_type);
+  BluetoothAudioSessionControl::UnregisterControlResultCback(aidl_session_type,
+                                                             cookie);
+  auto& session_callback_table = legacy_callback_table[aidl_session_type];
+  if (session_callback_table.find(cookie) != session_callback_table.end()) {
+    std::lock_guard<std::mutex> guard(legacy_callback_lock);
+    session_callback_table.erase(cookie);
+  }
 }
 
 const AudioConfig_2_0 HidlToAidlMiddleware_2_0::GetAudioConfig(
@@ -659,124 +625,6 @@
       from_session_type_2_1(session_type)));
 }
 
-/***
- *
- * 2.2
- *
- ***/
-
-bool HidlToAidlMiddleware_2_2::IsSessionReady(
-    const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::IsSessionReady(
-      from_session_type_2_1(session_type));
-}
-
-uint16_t HidlToAidlMiddleware_2_2::RegisterControlResultCback(
-    const SessionType_2_1& session_type,
-    const PortStatusCallbacks_2_2& cbacks) {
-  LOG(INFO) << __func__ << ": " << toString(session_type);
-  auto aidl_session_type = from_session_type_2_1(session_type);
-  // Pass the exact reference to the lambda
-  auto& session_legacy_callback_table =
-      legacy_callback_table[aidl_session_type];
-  PortStatusCallbacks aidl_callbacks{};
-  if (cbacks.control_result_cb_) {
-    aidl_callbacks.control_result_cb_ =
-        [&session_legacy_callback_table](uint16_t cookie, bool start_resp,
-                                         const BluetoothAudioStatus& status) {
-          if (session_legacy_callback_table.find(cookie) ==
-              session_legacy_callback_table.end()) {
-            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
-            return;
-          }
-          auto& cback = session_legacy_callback_table[cookie];
-          cback->control_result_cb_(cookie, start_resp, to_hidl_status(status));
-        };
-  }
-  if (cbacks.session_changed_cb_) {
-    aidl_callbacks.session_changed_cb_ =
-        [&session_legacy_callback_table](uint16_t cookie) {
-          if (session_legacy_callback_table.find(cookie) ==
-              session_legacy_callback_table.end()) {
-            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
-            return;
-          }
-          auto& cback = session_legacy_callback_table[cookie];
-          cback->session_changed_cb_(cookie);
-        };
-  };
-  if (cbacks.audio_configuration_changed_cb_) {
-    aidl_callbacks.audio_configuration_changed_cb_ =
-        [&session_legacy_callback_table](uint16_t cookie) {
-          if (session_legacy_callback_table.find(cookie) ==
-              session_legacy_callback_table.end()) {
-            LOG(ERROR) << __func__ << ": Unknown callback invoked!";
-            return;
-          }
-          auto& cback = session_legacy_callback_table[cookie];
-          cback->audio_configuration_changed_cb_(cookie);
-        };
-  };
-  auto cookie = BluetoothAudioSessionControl::RegisterControlResultCback(
-      aidl_session_type, aidl_callbacks);
-  {
-    std::lock_guard<std::mutex> guard(legacy_callback_lock);
-    session_legacy_callback_table[cookie] =
-        std::make_shared<PortStatusCallbacks_2_2>(cbacks);
-  }
-  return cookie;
-}
-
-void HidlToAidlMiddleware_2_2::UnregisterControlResultCback(
-    const SessionType_2_1& session_type, uint16_t cookie) {
-  LOG(INFO) << __func__ << ": " << toString(session_type);
-  auto aidl_session_type = from_session_type_2_1(session_type);
-  BluetoothAudioSessionControl::UnregisterControlResultCback(aidl_session_type,
-                                                             cookie);
-  auto& session_callback_table = legacy_callback_table[aidl_session_type];
-  if (session_callback_table.find(cookie) != session_callback_table.end()) {
-    std::lock_guard<std::mutex> guard(legacy_callback_lock);
-    session_callback_table.erase(cookie);
-  }
-}
-
-const AudioConfig_2_2 HidlToAidlMiddleware_2_2::GetAudioConfig(
-    const SessionType_2_1& session_type) {
-  return to_hidl_audio_config_2_2(BluetoothAudioSessionControl::GetAudioConfig(
-      from_session_type_2_1(session_type)));
-}
-
-bool HidlToAidlMiddleware_2_2::StartStream(
-    const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::StartStream(
-      from_session_type_2_1(session_type));
-}
-
-bool HidlToAidlMiddleware_2_2::SuspendStream(
-    const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::SuspendStream(
-      from_session_type_2_1(session_type));
-}
-
-void HidlToAidlMiddleware_2_2::StopStream(const SessionType_2_1& session_type) {
-  return BluetoothAudioSessionControl::StopStream(
-      from_session_type_2_1(session_type));
-}
-
-void HidlToAidlMiddleware_2_2::UpdateTracksMetadata(
-    const SessionType_2_1& session_type,
-    const struct source_metadata* source_metadata) {
-  return BluetoothAudioSessionControl::UpdateSourceMetadata(
-      from_session_type_2_1(session_type), *source_metadata);
-}
-
-void HidlToAidlMiddleware_2_2::UpdateSinkMetadata(
-    const SessionType_2_1& session_type,
-    const struct sink_metadata* sink_metadata) {
-  return BluetoothAudioSessionControl::UpdateSinkMetadata(
-      from_session_type_2_1(session_type), *sink_metadata);
-}
-
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
diff --git a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware_2_2.h b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware_2_2.h
deleted file mode 100644
index f6c3e5c..0000000
--- a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware_2_2.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include "../session/BluetoothAudioSession.h"
-#include "../session/BluetoothAudioSession_2_2.h"
-
-namespace aidl {
-namespace android {
-namespace hardware {
-namespace bluetooth {
-namespace audio {
-
-using SessionType_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::SessionType;
-using PortStatusCallbacks_2_0 =
-    ::android::bluetooth::audio::PortStatusCallbacks;
-using PortStatusCallbacks_2_2 =
-    ::android::bluetooth::audio::PortStatusCallbacks_2_2;
-using AudioConfig_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration;
-
-class HidlToAidlMiddleware_2_2 {
- public:
-  static bool IsSessionReady(const SessionType_2_1& session_type);
-
-  static uint16_t RegisterControlResultCback(
-      const SessionType_2_1& session_type,
-      const PortStatusCallbacks_2_2& cbacks);
-
-  static void UnregisterControlResultCback(const SessionType_2_1& session_type,
-                                           uint16_t cookie);
-
-  static const AudioConfig_2_2 GetAudioConfig(
-      const SessionType_2_1& session_type);
-
-  static bool StartStream(const SessionType_2_1& session_type);
-
-  static bool SuspendStream(const SessionType_2_1& session_type);
-
-  static void StopStream(const SessionType_2_1& session_type);
-
-  static void UpdateTracksMetadata(
-      const SessionType_2_1& session_type,
-      const struct source_metadata* source_metadata);
-
-  static void UpdateSinkMetadata(const SessionType_2_1& session_type,
-                                 const struct sink_metadata* sink_metadata);
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace hardware
-}  // namespace android
-}  // namespace aidl
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
deleted file mode 100644
index c270ef0..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include "BluetoothAudioSession_2_2.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-class BluetoothAudioSessionControl_2_2 {
-  using SessionType_2_1 =
-      ::android::hardware::bluetooth::audio::V2_1::SessionType;
-  using AudioConfiguration_2_2 =
-      ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration;
-
- public:
-  // The control API helps to check if session is ready or not
-  // @return: true if the Bluetooth stack has started th specified session
-  static bool IsSessionReady(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->IsSessionReady();
-    }
-    return false;
-  }
-
-  // The control API helps the bluetooth_audio module to register
-  // PortStatusCallbacks
-  // @return: cookie - the assigned number to this bluetooth_audio output
-  static uint16_t RegisterControlResultCback(
-      const SessionType_2_1& session_type, const PortStatusCallbacks& cbacks) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      PortStatusCallbacks_2_2 cb = {
-          .control_result_cb_ = cbacks.control_result_cb_,
-          .session_changed_cb_ = cbacks.session_changed_cb_,
-          .audio_configuration_changed_cb_ = nullptr};
-      return session_ptr->RegisterStatusCback(cb);
-    }
-    return kObserversCookieUndefined;
-  }
-
-  // The control API helps the bluetooth_audio module to register
-  // PortStatusCallbacks_2_2
-  // @return: cookie - the assigned number to this bluetooth_audio output
-  static uint16_t RegisterControlResultCback(
-      const SessionType_2_1& session_type,
-      const PortStatusCallbacks_2_2& cbacks) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->RegisterStatusCback(cbacks);
-    }
-    return kObserversCookieUndefined;
-  }
-
-  // The control API helps the bluetooth_audio module to unregister
-  // PortStatusCallbacks and PortStatusCallbacks_2_2
-  // @param: cookie - indicates which bluetooth_audio output is
-  static void UnregisterControlResultCback(const SessionType_2_1& session_type,
-                                           uint16_t cookie) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->UnregisterStatusCback(cookie);
-    }
-  }
-
-  // The control API for the bluetooth_audio module to get current
-  // AudioConfiguration
-  static const AudioConfiguration_2_2 GetAudioConfig(
-      const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioConfig();
-    } else if (session_type ==
-               SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-      return BluetoothAudioSession_2_2::kInvalidOffloadAudioConfiguration;
-    } else if (
-        session_type ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-        session_type ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-      return BluetoothAudioSession_2_2::kInvalidLeOffloadAudioConfiguration;
-    } else {
-      return BluetoothAudioSession_2_2::kInvalidSoftwareAudioConfiguration;
-    }
-  }
-
-  // Those control APIs for the bluetooth_audio module to start / suspend / stop
-  // stream, to check position, and to update metadata.
-  static bool StartStream(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->StartStream();
-    }
-    return false;
-  }
-
-  static bool SuspendStream(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->SuspendStream();
-    }
-    return false;
-  }
-
-  static void StopStream(const SessionType_2_1& session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->StopStream();
-    }
-  }
-
-  static bool GetPresentationPosition(const SessionType_2_1& session_type,
-                                      uint64_t* remote_delay_report_ns,
-                                      uint64_t* total_bytes_readed,
-                                      timespec* data_position) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->GetPresentationPosition(
-          remote_delay_report_ns, total_bytes_readed, data_position);
-    }
-    return false;
-  }
-
-  static void UpdateTracksMetadata(
-      const SessionType_2_1& session_type,
-      const struct source_metadata* source_metadata) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->UpdateTracksMetadata(source_metadata);
-    }
-  }
-
-  static void UpdateSinkMetadata(const SessionType_2_1& session_type,
-                                 const struct sink_metadata* sink_metadata) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->UpdateSinkMetadata(sink_metadata);
-    }
-  }
-
-  // The control API writes stream to FMQ
-  static size_t OutWritePcmData(const SessionType_2_1& session_type,
-                                const void* buffer, size_t bytes) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->OutWritePcmData(buffer, bytes);
-    }
-    return 0;
-  }
-
-  // The control API reads stream from FMQ
-  static size_t InReadPcmData(const SessionType_2_1& session_type, void* buffer,
-                              size_t bytes) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->InReadPcmData(buffer, bytes);
-    }
-    return 0;
-  }
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSessionReport_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSessionReport_2_2.h
deleted file mode 100644
index 17e140e..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSessionReport_2_2.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include "BluetoothAudioSession_2_2.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-class BluetoothAudioSessionReport_2_2 {
- public:
-  // The API reports the Bluetooth stack has started the session, and will
-  // inform registered bluetooth_audio outputs
-  static void OnSessionStarted(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type,
-      const sp<IBluetoothAudioPort> host_iface,
-      const DataMQ::Descriptor* dataMQ,
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->OnSessionStarted(host_iface, dataMQ, audio_config);
-    }
-  }
-
-  // The API reports the Bluetooth stack has ended the session, and will
-  // inform registered bluetooth_audio outputs
-  static void OnSessionEnded(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->OnSessionEnded();
-    }
-  }
-  // The API reports the Bluetooth stack has replied the result of startStream
-  // or suspendStream, and will inform registered bluetooth_audio outputs
-  static void ReportControlStatus(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type,
-      const bool& start_resp, const BluetoothAudioStatus& status) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->ReportControlStatus(start_resp, status);
-    }
-  }
-  // The API reports the Bluetooth stack has replied the changed of the audio
-  // configuration, and will inform registered bluetooth_audio outputs
-  static void ReportAudioConfigChanged(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type,
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config) {
-    std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-        BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
-    if (session_ptr != nullptr) {
-      session_ptr->ReportAudioConfigChanged(audio_config);
-    }
-  }
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
deleted file mode 100644
index ceb0662..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- * Copyright 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderSession_2_2"
-
-#include "BluetoothAudioSession_2_2.h"
-
-#include <android-base/logging.h>
-#include <android-base/stringprintf.h>
-#include <android/hardware/bluetooth/audio/2.2/IBluetoothAudioPort.h>
-
-#include "../aidl_session/HidlToAidlMiddleware_2_0.h"
-#include "../aidl_session/HidlToAidlMiddleware_2_2.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-using ::aidl::android::hardware::bluetooth::audio::HidlToAidlMiddleware_2_0;
-using ::aidl::android::hardware::bluetooth::audio::HidlToAidlMiddleware_2_2;
-using ::android::hardware::audio::common::V5_0::AudioContentType;
-using ::android::hardware::audio::common::V5_0::AudioSource;
-using ::android::hardware::audio::common::V5_0::AudioUsage;
-using ::android::hardware::audio::common::V5_0::PlaybackTrackMetadata;
-using ::android::hardware::audio::common::V5_0::RecordTrackMetadata;
-using ::android::hardware::audio::common::V5_0::SinkMetadata;
-using ::android::hardware::audio::common::V5_0::SourceMetadata;
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
-using ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration;
-using ::android::hardware::bluetooth::audio::V2_2::LeAudioMode;
-using PcmParameters_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::PcmParameters;
-using SampleRate_2_1 = ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-
-using SessionType_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::SessionType;
-using SessionType_2_0 =
-    ::android::hardware::bluetooth::audio::V2_0::SessionType;
-
-using AudioConfiguration_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::AudioConfiguration;
-
-static constexpr PcmParameters_2_1 kInvalidPcmParameters = {
-    .sampleRate = SampleRate_2_1::RATE_UNKNOWN,
-    .channelMode = ChannelMode::UNKNOWN,
-    .bitsPerSample = BitsPerSample::BITS_UNKNOWN,
-    .dataIntervalUs = 0,
-};
-
-static LeAudioConfiguration kInvalidLeAudioConfig = {
-    .mode = LeAudioMode::UNKNOWN,
-    .config = {},
-};
-
-::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-    BluetoothAudioSession_2_2::invalidSoftwareAudioConfiguration = {};
-::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-    BluetoothAudioSession_2_2::invalidOffloadAudioConfiguration = {};
-::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-    BluetoothAudioSession_2_2::invalidLeOffloadAudioConfiguration = {};
-
-using IBluetoothAudioPort_2_2 =
-    ::android::hardware::bluetooth::audio::V2_2::IBluetoothAudioPort;
-
-namespace {
-bool is_2_0_session_type(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type) {
-  if (session_type == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-      session_type == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH ||
-      session_type == SessionType_2_1::HEARING_AID_SOFTWARE_ENCODING_DATAPATH) {
-    return true;
-  } else {
-    return false;
-  }
-}
-}  // namespace
-
-BluetoothAudioSession_2_2::BluetoothAudioSession_2_2(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type)
-    : audio_session(BluetoothAudioSessionInstance::GetSessionInstance(
-          static_cast<SessionType_2_0>(session_type))),
-      audio_session_2_1(
-          BluetoothAudioSessionInstance_2_1::GetSessionInstance(session_type)) {
-  if (is_2_0_session_type(session_type)) {
-    session_type_2_1_ = (SessionType_2_1::UNKNOWN);
-  } else {
-    session_type_2_1_ = (session_type);
-  }
-  raw_session_type_ = session_type;
-  invalidSoftwareAudioConfiguration.pcmConfig(kInvalidPcmParameters);
-  invalidOffloadAudioConfiguration.codecConfig(
-      audio_session->kInvalidCodecConfiguration);
-  invalidLeOffloadAudioConfiguration.leAudioConfig(kInvalidLeAudioConfig);
-}
-
-bool BluetoothAudioSession_2_2::IsSessionReady() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::IsSessionReady(raw_session_type_);
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return audio_session->IsSessionReady();
-  }
-
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  return audio_session->stack_iface_ != nullptr;
-}
-
-std::shared_ptr<BluetoothAudioSession>
-BluetoothAudioSession_2_2::GetAudioSession() {
-  return audio_session;
-}
-std::shared_ptr<BluetoothAudioSession_2_1>
-BluetoothAudioSession_2_2::GetAudioSession_2_1() {
-  return audio_session_2_1;
-}
-
-void BluetoothAudioSession_2_2::UpdateTracksMetadata(
-    const struct source_metadata* source_metadata) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::UpdateTracksMetadata(raw_session_type_,
-                                                          source_metadata);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return;
-  }
-
-  ssize_t track_count = source_metadata->track_count;
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-            << ", " << track_count << " track(s)";
-
-  if (session_type_2_1_ == SessionType_2_1::UNKNOWN) {
-    audio_session->UpdateTracksMetadata(source_metadata);
-    return;
-  }
-
-  struct playback_track_metadata* track = source_metadata->tracks;
-  SourceMetadata sourceMetadata;
-  PlaybackTrackMetadata* halMetadata;
-
-  sourceMetadata.tracks.resize(track_count);
-  halMetadata = sourceMetadata.tracks.data();
-  while (track_count && track) {
-    halMetadata->usage = static_cast<AudioUsage>(track->usage);
-    halMetadata->contentType =
-        static_cast<AudioContentType>(track->content_type);
-    halMetadata->gain = track->gain;
-    LOG(VERBOSE) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << ", usage=" << toString(halMetadata->usage)
-                 << ", content=" << toString(halMetadata->contentType)
-                 << ", gain=" << halMetadata->gain;
-    --track_count;
-    ++track;
-    ++halMetadata;
-  }
-  auto hal_retval = audio_session->stack_iface_->updateMetadata(sourceMetadata);
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-  }
-}
-
-void BluetoothAudioSession_2_2::UpdateSinkMetadata(
-    const struct sink_metadata* sink_metadata) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::UpdateSinkMetadata(raw_session_type_,
-                                                        sink_metadata);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return;
-  }
-
-  ssize_t track_count = sink_metadata->track_count;
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-            << ", " << track_count << " track(s)";
-  if (session_type_2_1_ == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-      session_type_2_1_ == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
-    return;
-  }
-
-  struct record_track_metadata* track = sink_metadata->tracks;
-  SinkMetadata sinkMetadata;
-  RecordTrackMetadata* halMetadata;
-
-  sinkMetadata.tracks.resize(track_count);
-  halMetadata = sinkMetadata.tracks.data();
-  while (track_count && track) {
-    halMetadata->source = static_cast<AudioSource>(track->source);
-    halMetadata->gain = track->gain;
-    // halMetadata->destination leave unspecified
-    LOG(INFO) << __func__
-              << " - SessionType=" << toString(GetAudioSession()->session_type_)
-              << ", source=" << track->source
-              << ", dest_device=" << track->dest_device
-              << ", gain=" << track->gain
-              << ", dest_device_address=" << track->dest_device_address;
-    --track_count;
-    ++track;
-    ++halMetadata;
-  }
-
-  /* This is called just for 2.2 sessions, so it's safe to do this casting*/
-  IBluetoothAudioPort_2_2* stack_iface_2_2_ =
-      static_cast<IBluetoothAudioPort_2_2*>(audio_session->stack_iface_.get());
-  auto hal_retval = stack_iface_2_2_->updateSinkMetadata(sinkMetadata);
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-  }
-}
-
-// The control function is for the bluetooth_audio module to get the current
-// AudioConfiguration
-const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-BluetoothAudioSession_2_2::GetAudioConfig() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::GetAudioConfig(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (IsSessionReady()) {
-    auto audio_config_discriminator = audio_config_2_2_.getDiscriminator();
-    // If session is unknown it means it should be 2.0 type
-    if (session_type_2_1_ != SessionType_2_1::UNKNOWN) {
-      if ((audio_config_discriminator ==
-               ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-                   hidl_discriminator::pcmConfig &&
-           audio_config_2_2_ != kInvalidSoftwareAudioConfiguration) ||
-          (audio_config_discriminator ==
-               ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-                   hidl_discriminator::leAudioConfig &&
-           audio_config_2_2_ != kInvalidLeOffloadAudioConfiguration))
-        return audio_config_2_2_;
-
-      ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration toConf;
-      const AudioConfiguration_2_1 fromConf =
-          GetAudioSession_2_1()->GetAudioConfig();
-      if (fromConf.getDiscriminator() ==
-          AudioConfiguration_2_1::hidl_discriminator::pcmConfig) {
-        toConf.pcmConfig(fromConf.pcmConfig());
-        return toConf;
-      }
-    }
-
-    ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration toConf;
-    const AudioConfiguration fromConf = GetAudioSession()->GetAudioConfig();
-    // pcmConfig only differs between 2.0 and 2.1 in AudioConfiguration
-    if (fromConf.getDiscriminator() ==
-        AudioConfiguration::hidl_discriminator::codecConfig) {
-      toConf.codecConfig(fromConf.codecConfig());
-    } else {
-      toConf.pcmConfig() = {
-          .sampleRate = static_cast<
-              ::android::hardware::bluetooth::audio::V2_1::SampleRate>(
-              fromConf.pcmConfig().sampleRate),
-          .channelMode = fromConf.pcmConfig().channelMode,
-          .bitsPerSample = fromConf.pcmConfig().bitsPerSample,
-          .dataIntervalUs = 0};
-    }
-    return toConf;
-  } else if (session_type_2_1_ ==
-                 SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-             session_type_2_1_ ==
-                 SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return kInvalidLeOffloadAudioConfiguration;
-  } else {
-    return kInvalidSoftwareAudioConfiguration;
-  }
-}
-
-// Those control functions are for the bluetooth_audio module to start, suspend,
-// stop stream, to check position, and to update metadata.
-bool BluetoothAudioSession_2_2::StartStream() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::StartStream(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return false;
-  }
-  auto hal_retval = audio_session->stack_iface_->startStream();
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-    return false;
-  }
-  return true;
-}
-
-bool BluetoothAudioSession_2_2::SuspendStream() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::SuspendStream(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has NO session";
-    return false;
-  }
-  auto hal_retval = audio_session->stack_iface_->suspendStream();
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-    return false;
-  }
-  return true;
-}
-
-void BluetoothAudioSession_2_2::StopStream() {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::StopStream(raw_session_type_);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (!IsSessionReady()) {
-    return;
-  }
-  auto hal_retval = audio_session->stack_iface_->stopStream();
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_2_1_) << " failed";
-  }
-}
-
-bool BluetoothAudioSession_2_2::UpdateAudioConfig(
-    const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-        audio_config) {
-  bool is_software_session =
-      (session_type_2_1_ == SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::HEARING_AID_SOFTWARE_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_SOFTWARE_DECODED_DATAPATH);
-  bool is_offload_a2dp_session =
-      (session_type_2_1_ == SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH);
-  bool is_offload_le_audio_session =
-      (session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-       session_type_2_1_ ==
-           SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH);
-  auto audio_config_discriminator = audio_config.getDiscriminator();
-  bool is_software_audio_config =
-      (is_software_session &&
-       audio_config_discriminator ==
-           ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-               hidl_discriminator::pcmConfig);
-  bool is_a2dp_offload_audio_config =
-      (is_offload_a2dp_session &&
-       audio_config_discriminator ==
-           ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-               hidl_discriminator::codecConfig);
-  bool is_le_audio_offload_audio_config =
-      (is_offload_le_audio_session &&
-       audio_config_discriminator ==
-           ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-               hidl_discriminator::leAudioConfig);
-  if (!is_software_audio_config && !is_a2dp_offload_audio_config &&
-      !is_le_audio_offload_audio_config) {
-    return false;
-  }
-  audio_config_2_2_ = audio_config;
-  return true;
-}
-
-// The report function is used to report that the Bluetooth stack has started
-// this session without any failure, and will invoke session_changed_cb_ to
-// notify those registered bluetooth_audio outputs
-void BluetoothAudioSession_2_2::OnSessionStarted(
-    const sp<IBluetoothAudioPort> stack_iface, const DataMQ::Descriptor* dataMQ,
-    const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-        audio_config) {
-  if (session_type_2_1_ == SessionType_2_1::UNKNOWN) {
-    ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration config;
-    if (audio_config.getDiscriminator() ==
-        ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration::
-            hidl_discriminator::codecConfig) {
-      config.codecConfig(audio_config.codecConfig());
-    } else {
-      auto& tmpPcm = audio_config.pcmConfig();
-      config.pcmConfig(
-          ::android::hardware::bluetooth::audio::V2_0::PcmParameters{
-              .sampleRate = static_cast<SampleRate>(tmpPcm.sampleRate),
-              .channelMode = tmpPcm.channelMode,
-              .bitsPerSample = tmpPcm.bitsPerSample
-              /*dataIntervalUs is not passed to 2.0 */
-          });
-    }
-
-    audio_session->OnSessionStarted(stack_iface, dataMQ, config);
-  } else {
-    std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-    if (stack_iface == nullptr) {
-      LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << ", IBluetoothAudioPort Invalid";
-    } else if (!UpdateAudioConfig(audio_config)) {
-      LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << ", AudioConfiguration=" << toString(audio_config)
-                 << " Invalid";
-    } else if (!audio_session->UpdateDataPath(dataMQ)) {
-      LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " DataMQ Invalid";
-      audio_config_2_2_ =
-          ((session_type_2_1_ ==
-                SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-            session_type_2_1_ ==
-                SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH)
-               ? kInvalidLeOffloadAudioConfiguration
-               : kInvalidSoftwareAudioConfiguration);
-    } else {
-      audio_session->stack_iface_ = stack_iface;
-      LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                << ", AudioConfiguration=" << toString(audio_config);
-      ReportSessionStatus();
-    };
-  }
-}
-
-// The report function is used to report that the Bluetooth stack has ended the
-// session, and will invoke session_changed_cb_ to notify registered
-// bluetooth_audio outputs
-void BluetoothAudioSession_2_2::OnSessionEnded() {
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  bool toggled = IsSessionReady();
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_);
-  if (session_type_2_1_ == SessionType_2_1::UNKNOWN) {
-    audio_session->OnSessionEnded();
-    return;
-  }
-
-  audio_config_2_2_ =
-      ((session_type_2_1_ ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-        session_type_2_1_ ==
-            SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH)
-           ? kInvalidLeOffloadAudioConfiguration
-           : kInvalidSoftwareAudioConfiguration);
-  audio_session->stack_iface_ = nullptr;
-  audio_session->UpdateDataPath(nullptr);
-  if (toggled) {
-    ReportSessionStatus();
-  }
-}
-
-// The control function helps the bluetooth_audio module to register
-// PortStatusCallbacks_2_2
-// @return: cookie - the assigned number to this bluetooth_audio output
-uint16_t BluetoothAudioSession_2_2::RegisterStatusCback(
-    const PortStatusCallbacks_2_2& cbacks) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::RegisterControlResultCback(
-        raw_session_type_, cbacks);
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    PortStatusCallbacks cb = {
-        .control_result_cb_ = cbacks.control_result_cb_,
-        .session_changed_cb_ = cbacks.session_changed_cb_};
-    return audio_session->RegisterStatusCback(cb);
-  }
-
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  uint16_t cookie = ObserversCookieGetInitValue(session_type_2_1_);
-  uint16_t cookie_upper_bound = ObserversCookieGetUpperBound(session_type_2_1_);
-
-  while (cookie < cookie_upper_bound) {
-    if (observers_.find(cookie) == observers_.end()) {
-      break;
-    }
-    ++cookie;
-  }
-  if (cookie >= cookie_upper_bound) {
-    LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-               << " has " << observers_.size()
-               << " observers already (No Resource)";
-    return kObserversCookieUndefined;
-  }
-  std::shared_ptr<struct PortStatusCallbacks_2_2> cb =
-      std::make_shared<struct PortStatusCallbacks_2_2>();
-  *cb = cbacks;
-  observers_[cookie] = cb;
-  return cookie;
-}
-
-// The control function helps the bluetooth_audio module to unregister
-// PortStatusCallbacks_2_2
-// @param: cookie - indicates which bluetooth_audio output is
-void BluetoothAudioSession_2_2::UnregisterStatusCback(uint16_t cookie) {
-  if (HidlToAidlMiddleware_2_0::IsAidlAvailable())
-    return HidlToAidlMiddleware_2_2::UnregisterControlResultCback(
-        raw_session_type_, cookie);
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    audio_session->UnregisterStatusCback(cookie);
-    return;
-  }
-  if (observers_.erase(cookie) != 1) {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " no such provider=0x"
-                 << android::base::StringPrintf("%04x", cookie);
-  }
-}
-
-// invoking the registered session_changed_cb_
-void BluetoothAudioSession_2_2::ReportSessionStatus() {
-  // This is locked already by OnSessionStarted / OnSessionEnded
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    audio_session->ReportSessionStatus();
-    return;
-  }
-  if (observers_.empty()) {
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-              << " has NO port state observer";
-    return;
-  }
-  for (auto& observer : observers_) {
-    uint16_t cookie = observer.first;
-    std::shared_ptr<struct PortStatusCallbacks_2_2> cb = observer.second;
-    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-              << " notify to bluetooth_audio=0x"
-              << android::base::StringPrintf("%04x", cookie);
-    cb->session_changed_cb_(cookie);
-  }
-}
-
-// The report function is used to report that the Bluetooth stack has notified
-// the result of startStream or suspendStream, and will invoke
-// control_result_cb_ to notify registered bluetooth_audio outputs
-void BluetoothAudioSession_2_2::ReportControlStatus(
-    bool start_resp, const BluetoothAudioStatus& status) {
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    audio_session->ReportControlStatus(start_resp, status);
-    return;
-  }
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  if (observers_.empty()) {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " has NO port state observer";
-    return;
-  }
-  for (auto& observer : observers_) {
-    uint16_t cookie = observer.first;
-    std::shared_ptr<struct PortStatusCallbacks_2_2> cb = observer.second;
-    LOG(INFO) << __func__ << " - status=" << toString(status)
-              << " for SessionType=" << toString(session_type_2_1_)
-              << ", bluetooth_audio=0x"
-              << android::base::StringPrintf("%04x", cookie)
-              << (start_resp ? " started" : " suspended");
-    cb->control_result_cb_(cookie, start_resp, status);
-  }
-}
-
-// The report function is used to report that the Bluetooth stack has notified
-// the result of startStream or suspendStream, and will invoke
-// control_result_cb_ to notify registered bluetooth_audio outputs
-void BluetoothAudioSession_2_2::ReportAudioConfigChanged(
-    const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-        audio_config) {
-  if (session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type_2_1_ !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return;
-  }
-  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
-  audio_config_2_2_ = audio_config;
-  if (observers_.empty()) {
-    LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_2_1_)
-                 << " has NO port state observer";
-    return;
-  }
-  for (auto& observer : observers_) {
-    uint16_t cookie = observer.first;
-    std::shared_ptr<struct PortStatusCallbacks_2_2> cb = observer.second;
-    LOG(INFO) << __func__ << " for SessionType=" << toString(session_type_2_1_)
-              << ", bluetooth_audio=0x"
-              << android::base::StringPrintf("%04x", cookie);
-    if (cb->audio_configuration_changed_cb_ != nullptr) {
-      cb->audio_configuration_changed_cb_(cookie);
-    }
-  }
-}
-
-std::unique_ptr<BluetoothAudioSessionInstance_2_2>
-    BluetoothAudioSessionInstance_2_2::instance_ptr =
-        std::unique_ptr<BluetoothAudioSessionInstance_2_2>(
-            new BluetoothAudioSessionInstance_2_2());
-
-// API to fetch the session of A2DP / Hearing Aid
-std::shared_ptr<BluetoothAudioSession_2_2>
-BluetoothAudioSessionInstance_2_2::GetSessionInstance(
-    const SessionType_2_1& session_type) {
-  std::lock_guard<std::mutex> guard(instance_ptr->mutex_);
-  if (!instance_ptr->sessions_map_.empty()) {
-    auto entry = instance_ptr->sessions_map_.find(session_type);
-    if (entry != instance_ptr->sessions_map_.end()) {
-      return entry->second;
-    }
-  }
-  std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
-      std::make_shared<BluetoothAudioSession_2_2>(session_type);
-  instance_ptr->sessions_map_[session_type] = session_ptr;
-  return session_ptr;
-}
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
deleted file mode 100644
index e04ad80..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Copyright 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include <mutex>
-#include <unordered_map>
-
-#include "BluetoothAudioSession.h"
-#include "BluetoothAudioSession_2_1.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-inline uint16_t ObserversCookieGetInitValue(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type) {
-  return (static_cast<uint16_t>(session_type) << 8 & 0xff00);
-}
-inline uint16_t ObserversCookieGetUpperBound(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type) {
-  return (static_cast<uint16_t>(session_type) << 8 & 0xff00) +
-         kObserversCookieSize;
-}
-
-struct PortStatusCallbacks_2_2 {
-  // control_result_cb_ - when the Bluetooth stack reports results of
-  // streamStarted or streamSuspended, the BluetoothAudioProvider will invoke
-  // this callback to report to the bluetooth_audio module.
-  // @param: cookie - indicates which bluetooth_audio output should handle
-  // @param: start_resp - this report is for startStream or not
-  // @param: status - the result of startStream
-  std::function<void(uint16_t cookie, bool start_resp,
-                     const BluetoothAudioStatus& status)>
-      control_result_cb_;
-  // session_changed_cb_ - when the Bluetooth stack start / end session, the
-  // BluetoothAudioProvider will invoke this callback to notify to the
-  // bluetooth_audio module.
-  // @param: cookie - indicates which bluetooth_audio output should handle
-  std::function<void(uint16_t cookie)> session_changed_cb_;
-  // audio_configuration_changed_cb_ - when the Bluetooth stack change the audio
-  // configuration, the BluetoothAudioProvider will invoke this callback to
-  // notify to the bluetooth_audio module.
-  // @param: cookie - indicates which bluetooth_audio output should handle
-  std::function<void(uint16_t cookie)> audio_configuration_changed_cb_;
-};
-
-class BluetoothAudioSession_2_2 {
- private:
-  std::shared_ptr<BluetoothAudioSession> audio_session;
-  std::shared_ptr<BluetoothAudioSession_2_1> audio_session_2_1;
-
-  ::android::hardware::bluetooth::audio::V2_1::SessionType session_type_2_1_;
-  ::android::hardware::bluetooth::audio::V2_1::SessionType raw_session_type_;
-
-  // audio data configuration for both software and offloading
-  ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      audio_config_2_2_;
-
-  bool UpdateAudioConfig(
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config);
-
-  static ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      invalidSoftwareAudioConfiguration;
-  static ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      invalidOffloadAudioConfiguration;
-  static ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-      invalidLeOffloadAudioConfiguration;
-
-  // saving those registered bluetooth_audio's callbacks
-  std::unordered_map<uint16_t, std::shared_ptr<struct PortStatusCallbacks_2_2>>
-      observers_;
-
-  // invoking the registered session_changed_cb_
-  void ReportSessionStatus();
-
- public:
-  BluetoothAudioSession_2_2(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type);
-
-  // The function helps to check if this session is ready or not
-  // @return: true if the Bluetooth stack has started the specified session
-  bool IsSessionReady();
-
-  std::shared_ptr<BluetoothAudioSession> GetAudioSession();
-  std::shared_ptr<BluetoothAudioSession_2_1> GetAudioSession_2_1();
-
-  // The report function is used to report that the Bluetooth stack has started
-  // this session without any failure, and will invoke session_changed_cb_ to
-  // notify those registered bluetooth_audio outputs
-  void OnSessionStarted(
-      const sp<IBluetoothAudioPort> stack_iface,
-      const DataMQ::Descriptor* dataMQ,
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config);
-
-  // The report function is used to report that the Bluetooth stack has ended
-  // the session, and will invoke session_changed_cb_ to notify registered
-  // bluetooth_audio outputs
-  void OnSessionEnded();
-
-  // Those control functions are for the bluetooth_audio module to start,
-  // suspend, stop stream, to check position, and to update metadata.
-  bool StartStream();
-  bool SuspendStream();
-  void StopStream();
-
-  // The control function helps the bluetooth_audio module to register
-  // PortStatusCallbacks_2_2
-  // @return: cookie - the assigned number to this bluetooth_audio output
-  uint16_t RegisterStatusCback(const PortStatusCallbacks_2_2& cbacks);
-
-  // The control function helps the bluetooth_audio module to unregister
-  // PortStatusCallbacks_2_2
-  // @param: cookie - indicates which bluetooth_audio output is
-  void UnregisterStatusCback(uint16_t cookie);
-
-  // The report function is used to report that the Bluetooth stack has notified
-  // the result of startStream or suspendStream, and will invoke
-  // control_result_cb_ to notify registered bluetooth_audio outputs
-  void ReportControlStatus(bool start_resp, const BluetoothAudioStatus& status);
-
-  // The report function is used to report that the Bluetooth stack has notified
-  // the audio configuration changed, and will invoke
-  // audio_configuration_changed_cb_ to notify registered bluetooth_audio
-  // outputs
-  void ReportAudioConfigChanged(
-      const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
-          audio_config);
-
-  // The control function is for the bluetooth_audio module to get the current
-  // AudioConfiguration
-  const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
-  GetAudioConfig();
-
-  void UpdateTracksMetadata(const struct source_metadata* source_metadata);
-  void UpdateSinkMetadata(const struct sink_metadata* sink_metadata);
-
-  static constexpr ::android::hardware::bluetooth::audio::V2_2::
-      AudioConfiguration& kInvalidSoftwareAudioConfiguration =
-          invalidSoftwareAudioConfiguration;
-  static constexpr ::android::hardware::bluetooth::audio::V2_2::
-      AudioConfiguration& kInvalidOffloadAudioConfiguration =
-          invalidOffloadAudioConfiguration;
-  static constexpr ::android::hardware::bluetooth::audio::V2_2::
-      AudioConfiguration& kInvalidLeOffloadAudioConfiguration =
-          invalidLeOffloadAudioConfiguration;
-};
-
-class BluetoothAudioSessionInstance_2_2 {
- public:
-  // The API is to fetch the specified session of A2DP / Hearing Aid
-  static std::shared_ptr<BluetoothAudioSession_2_2> GetSessionInstance(
-      const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-          session_type);
-
- private:
-  static std::unique_ptr<BluetoothAudioSessionInstance_2_2> instance_ptr;
-  std::mutex mutex_;
-  std::unordered_map<::android::hardware::bluetooth::audio::V2_1::SessionType,
-                     std::shared_ptr<BluetoothAudioSession_2_2>>
-      sessions_map_;
-};
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp b/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp
deleted file mode 100644
index decff70..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BTAudioProviderSessionCodecsDB_2_2"
-
-#include "BluetoothAudioSupportedCodecsDB_2_2.h"
-
-#include <android-base/logging.h>
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
-using ::android::hardware::bluetooth::audio::V2_1::CodecType;
-using ::android::hardware::bluetooth::audio::V2_1::Lc3FrameDuration;
-using ::android::hardware::bluetooth::audio::V2_1::Lc3Parameters;
-using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
-using ::android::hardware::bluetooth::audio::V2_2::AudioLocation;
-using ::android::hardware::bluetooth::audio::V2_2::BroadcastCapability;
-using ::android::hardware::bluetooth::audio::V2_2::
-    LeAudioCodecCapabilitiesSetting;
-using ::android::hardware::bluetooth::audio::V2_2::UnicastCapability;
-using SessionType_2_1 =
-    ::android::hardware::bluetooth::audio::V2_1::SessionType;
-
-// Stores the list of offload supported capability
-std::vector<LeAudioCodecCapabilitiesSetting> kDefaultOffloadLeAudioCapabilities;
-
-static const UnicastCapability kInvalidUnicastCapability = {
-    .codecType = CodecType::UNKNOWN};
-
-static const BroadcastCapability kInvalidBroadcastCapability = {
-    .codecType = CodecType::UNKNOWN};
-
-// Default Supported Codecs
-// LC3 16_1: sample rate: 16 kHz, frame duration: 7.5 ms, octets per frame: 30
-static const Lc3Parameters kLc3Capability_16_1 = {
-    .samplingFrequency = SampleRate::RATE_16000,
-    .frameDuration = Lc3FrameDuration::DURATION_7500US,
-    .octetsPerFrame = 30};
-
-// Default Supported Codecs
-// LC3 16_2: sample rate: 16 kHz, frame duration: 10 ms, octets per frame: 40
-static const Lc3Parameters kLc3Capability_16_2 = {
-    .samplingFrequency = SampleRate::RATE_16000,
-    .frameDuration = Lc3FrameDuration::DURATION_10000US,
-    .octetsPerFrame = 40};
-
-// Default Supported Codecs
-// LC3 48_4: sample rate: 48 kHz, frame duration: 10 ms, octets per frame: 120
-static const Lc3Parameters kLc3Capability_48_4 = {
-    .samplingFrequency = SampleRate::RATE_48000,
-    .frameDuration = Lc3FrameDuration::DURATION_10000US,
-    .octetsPerFrame = 120};
-
-static const std::vector<Lc3Parameters> supportedLc3CapabilityList = {
-    kLc3Capability_48_4, kLc3Capability_16_2, kLc3Capability_16_1};
-
-static AudioLocation stereoAudio = static_cast<AudioLocation>(
-    AudioLocation::FRONT_LEFT | AudioLocation::FRONT_RIGHT);
-static AudioLocation monoAudio = AudioLocation::UNKNOWN;
-
-// Stores the supported setting of audio location, connected device, and the
-// channel count for each device
-std::vector<std::tuple<AudioLocation, uint8_t, uint8_t>>
-    supportedDeviceSetting = {
-        // 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)};
-
-bool IsOffloadLeAudioConfigurationValid(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type,
-    const ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration&) {
-  if (session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return false;
-  }
-
-  // TODO: perform checks on le_audio_codec_config once we know supported
-  // parameters
-
-  return true;
-}
-
-UnicastCapability composeUnicastLc3Capability(AudioLocation audioLocation,
-                                              uint8_t deviceCnt,
-                                              uint8_t channelCount,
-                                              Lc3Parameters capability) {
-  return UnicastCapability{.codecType = CodecType::LC3,
-                           .supportedChannel = audioLocation,
-                           .deviceCount = deviceCnt,
-                           .channelCountPerDevice = channelCount,
-                           .capabilities = capability};
-}
-
-std::vector<LeAudioCodecCapabilitiesSetting> GetLeAudioOffloadCodecCapabilities(
-    const SessionType_2_1& session_type) {
-  if (session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type !=
-          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return std::vector<LeAudioCodecCapabilitiesSetting>(0);
-  }
-
-  if (kDefaultOffloadLeAudioCapabilities.empty()) {
-    for (auto [audioLocation, deviceCnt, channelCount] :
-         supportedDeviceSetting) {
-      for (auto capability : supportedLc3CapabilityList) {
-        UnicastCapability lc3Capability = composeUnicastLc3Capability(
-            audioLocation, deviceCnt, channelCount, capability);
-        UnicastCapability lc3MonoDecodeCapability =
-            composeUnicastLc3Capability(monoAudio, 1, 1, capability);
-
-        // Adds the capability for encode only
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = lc3Capability,
-             .unicastDecodeCapability = kInvalidUnicastCapability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-
-        // Adds the capability for decode only
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = kInvalidUnicastCapability,
-             .unicastDecodeCapability = lc3Capability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-
-        // Adds the capability for the case that encode and decode exist at the
-        // same time
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = lc3Capability,
-             .unicastDecodeCapability = lc3MonoDecodeCapability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-      }
-    }
-  }
-
-  return kDefaultOffloadLeAudioCapabilities;
-}
-
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
deleted file mode 100644
index 34bba5f..0000000
--- a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/bluetooth/audio/2.2/types.h>
-
-#include "BluetoothAudioSupportedCodecsDB.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
-
-namespace android {
-namespace bluetooth {
-namespace audio {
-
-bool IsOffloadLeAudioConfigurationValid(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type,
-    const ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration&
-        le_audio_codec_config);
-
-std::vector<hardware::bluetooth::audio::V2_2::LeAudioCodecCapabilitiesSetting>
-GetLeAudioOffloadCodecCapabilities(
-    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
-        session_type);
-}  // namespace audio
-}  // namespace bluetooth
-}  // namespace android
diff --git a/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc b/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc
index dd8c9c6..d58ba53 100644
--- a/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc
+++ b/broadcastradio/2.0/default/android.hardware.broadcastradio@2.0-service.rc
@@ -1,5 +1,6 @@
 service broadcastradio-hal2 /vendor/bin/hw/android.hardware.broadcastradio@2.0-service
-    interface android.hardware.broadcastradio@2.0::IBroadcastRadio default
+    interface android.hardware.broadcastradio@2.0::IBroadcastRadio amfm
+    interface android.hardware.broadcastradio@2.0::IBroadcastRadio dab
     class hal
     user audioserver
     group audio
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index b65b159..6c152b1 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -133,7 +133,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.bluetooth.audio</name>
-        <version>2.0-2</version>
+        <version>2.0-1</version>
         <interface>
             <name>IBluetoothAudioProvidersFactory</name>
             <instance>default</instance>
diff --git a/drm/aidl/OWNERS b/drm/aidl/OWNERS
new file mode 100644
index 0000000..fa8fd20
--- /dev/null
+++ b/drm/aidl/OWNERS
@@ -0,0 +1,4 @@
+# Bug component: 49079
+edwinwong@google.com
+kelzhan@google.com
+robertshih@google.com
diff --git a/neuralnetworks/utils/service/include/nnapi/hal/Service.h b/neuralnetworks/utils/service/include/nnapi/hal/Service.h
index e8b9c10..38d2a54 100644
--- a/neuralnetworks/utils/service/include/nnapi/hal/Service.h
+++ b/neuralnetworks/utils/service/include/nnapi/hal/Service.h
@@ -24,23 +24,16 @@
 
 namespace android::hardware::neuralnetworks::service {
 
-struct SharedDeviceAndUpdatability {
-    nn::SharedDevice device;
-    bool isDeviceUpdatable = false;
-};
-
 /**
  * @brief Get the NNAPI sAIDL and HIDL services declared in the VINTF.
  *
  * @pre maxFeatureLevelAllowed >= Version::Level::FEATURE_LEVEL_5
  *
- * @param includeUpdatableDrivers Allow updatable drivers to be used.
  * @param maxFeatureLevelAllowed Maximum version of driver allowed to be used. Any driver version
  *     exceeding this must be clamped to `maxFeatureLevelAllowed`.
  * @return A list of devices and whether each device is updatable or not.
  */
-std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers,
-                                                    nn::Version::Level maxFeatureLevelAllowed);
+std::vector<nn::SharedDevice> getDevices(nn::Version::Level maxFeatureLevelAllowed);
 
 }  // namespace android::hardware::neuralnetworks::service
 
diff --git a/neuralnetworks/utils/service/src/Service.cpp b/neuralnetworks/utils/service/src/Service.cpp
index e0d5f82..dd37dae 100644
--- a/neuralnetworks/utils/service/src/Service.cpp
+++ b/neuralnetworks/utils/service/src/Service.cpp
@@ -51,7 +51,7 @@
 using getDeviceFn = std::add_pointer_t<nn::GeneralResult<nn::SharedDevice>(const std::string&)>;
 
 void getHidlDevicesForVersion(const std::string& descriptor, getDeviceFn getDevice,
-                              std::vector<SharedDeviceAndUpdatability>* devices,
+                              std::vector<nn::SharedDevice>* devices,
                               std::unordered_set<std::string>* registeredDevices) {
     CHECK(devices != nullptr);
     CHECK(registeredDevices != nullptr);
@@ -63,7 +63,7 @@
             if (maybeDevice.has_value()) {
                 auto device = std::move(maybeDevice).value();
                 CHECK(device != nullptr);
-                devices->push_back({.device = std::move(device)});
+                devices->push_back(std::move(device));
             } else {
                 LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
                            << ": " << maybeDevice.error().message;
@@ -72,9 +72,9 @@
     }
 }
 
-void getAidlDevices(std::vector<SharedDeviceAndUpdatability>* devices,
+void getAidlDevices(std::vector<nn::SharedDevice>* devices,
                     std::unordered_set<std::string>* registeredDevices,
-                    bool includeUpdatableDrivers, nn::Version::Level maxFeatureLevelAllowed) {
+                    nn::Version::Level maxFeatureLevelAllowed) {
     CHECK(devices != nullptr);
     CHECK(registeredDevices != nullptr);
 
@@ -91,21 +91,12 @@
     }
 
     for (const auto& name : names) {
-        bool isDeviceUpdatable = false;
-        if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
-            const auto instance = std::string(aidl_hal::IDevice::descriptor) + '/' + name;
-            isDeviceUpdatable = AServiceManager_isUpdatableViaApex(instance.c_str());
-        }
-        if (isDeviceUpdatable && !includeUpdatableDrivers) {
-            continue;
-        }
         if (const auto [it, unregistered] = registeredDevices->insert(name); unregistered) {
             auto maybeDevice = aidl_hal::utils::getDevice(name, maxFeatureLevelAllowed);
             if (maybeDevice.has_value()) {
                 auto device = std::move(maybeDevice).value();
                 CHECK(device != nullptr);
-                devices->push_back(
-                        {.device = std::move(device), .isDeviceUpdatable = isDeviceUpdatable});
+                devices->push_back(std::move(device));
             } else {
                 LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
                            << ": " << maybeDevice.error().message;
@@ -116,14 +107,13 @@
 
 }  // namespace
 
-std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers,
-                                                    nn::Version::Level maxFeatureLevelAllowed) {
-    std::vector<SharedDeviceAndUpdatability> devices;
+std::vector<nn::SharedDevice> getDevices(nn::Version::Level maxFeatureLevelAllowed) {
+    std::vector<nn::SharedDevice> devices;
     std::unordered_set<std::string> registeredDevices;
 
     CHECK_GE(maxFeatureLevelAllowed, nn::Version::Level::FEATURE_LEVEL_5);
 
-    getAidlDevices(&devices, &registeredDevices, includeUpdatableDrivers, maxFeatureLevelAllowed);
+    getAidlDevices(&devices, &registeredDevices, maxFeatureLevelAllowed);
 
     getHidlDevicesForVersion(V1_3::IDevice::descriptor, &V1_3::utils::getDevice, &devices,
                              &registeredDevices);
diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl
index b4371fd..4b26ac3 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicant.aidl
@@ -34,11 +34,11 @@
 package android.hardware.wifi.supplicant;
 @VintfStability
 interface ISupplicant {
-  android.hardware.wifi.supplicant.ISupplicantP2pIface addP2pInterface(in String ifName);
-  android.hardware.wifi.supplicant.ISupplicantStaIface addStaInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pIface addP2pInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaIface addStaInterface(in String ifName);
   android.hardware.wifi.supplicant.DebugLevel getDebugLevel();
-  android.hardware.wifi.supplicant.ISupplicantP2pIface getP2pInterface(in String ifName);
-  android.hardware.wifi.supplicant.ISupplicantStaIface getStaInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pIface getP2pInterface(in String ifName);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaIface getStaInterface(in String ifName);
   boolean isDebugShowKeysEnabled();
   boolean isDebugShowTimestampEnabled();
   android.hardware.wifi.supplicant.IfaceInfo[] listInterfaces();
diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
index ca7be73..7876d86 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
@@ -37,7 +37,7 @@
   void addBonjourService(in byte[] query, in byte[] response);
   void addGroup(in boolean persistent, in int persistentNetworkId);
   void addGroupWithConfig(in byte[] ssid, in String pskPassphrase, in boolean persistent, in int freq, in byte[] peerAddress, in boolean joinExistingGroup);
-  android.hardware.wifi.supplicant.ISupplicantP2pNetwork addNetwork();
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pNetwork addNetwork();
   void addUpnpService(in int version, in String serviceName);
   void cancelConnect();
   void cancelServiceDiscovery(in long identifier);
@@ -54,7 +54,7 @@
   boolean getEdmg();
   android.hardware.wifi.supplicant.P2pGroupCapabilityMask getGroupCapability(in byte[] peerAddress);
   String getName();
-  android.hardware.wifi.supplicant.ISupplicantP2pNetwork getNetwork(in int id);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantP2pNetwork getNetwork(in int id);
   byte[] getSsid(in byte[] peerAddress);
   android.hardware.wifi.supplicant.IfaceType getType();
   void invite(in String groupIfName, in byte[] goDeviceAddress, in byte[] peerAddress);
diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
index ca40379..20c52ac 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
@@ -36,7 +36,7 @@
 interface ISupplicantStaIface {
   int addDppPeerUri(in String uri);
   int addExtRadioWork(in String name, in int freqInMhz, in int timeoutInSec);
-  android.hardware.wifi.supplicant.ISupplicantStaNetwork addNetwork();
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaNetwork addNetwork();
   void addRxFilter(in android.hardware.wifi.supplicant.RxFilterType type);
   void cancelWps();
   void disconnect();
@@ -48,7 +48,7 @@
   android.hardware.wifi.supplicant.KeyMgmtMask getKeyMgmtCapabilities();
   byte[] getMacAddress();
   String getName();
-  android.hardware.wifi.supplicant.ISupplicantStaNetwork getNetwork(in int id);
+  @PropagateAllowBlocking android.hardware.wifi.supplicant.ISupplicantStaNetwork getNetwork(in int id);
   android.hardware.wifi.supplicant.IfaceType getType();
   android.hardware.wifi.supplicant.WpaDriverCapabilitiesMask getWpaDriverCapabilities();
   void initiateAnqpQuery(in byte[] macAddress, in android.hardware.wifi.supplicant.AnqpInfoId[] infoElements, in android.hardware.wifi.supplicant.Hs20AnqpSubtypes[] subTypes);
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl
index 2ac1db7..c17289d 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicant.aidl
@@ -46,8 +46,8 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_EXISTS|
      */
-    ISupplicantP2pIface addP2pInterface(in String ifName);
-    ISupplicantStaIface addStaInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantP2pIface addP2pInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantStaIface addStaInterface(in String ifName);
 
     /**
      * Get the debug level set.
@@ -68,8 +68,8 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_UNKNOWN|
      */
-    ISupplicantP2pIface getP2pInterface(in String ifName);
-    ISupplicantStaIface getStaInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantP2pIface getP2pInterface(in String ifName);
+    @PropagateAllowBlocking ISupplicantStaIface getStaInterface(in String ifName);
 
     /**
      * Get whether the keys are shown in the debug logs or not.
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
index 64839e7..5394f49 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIface.aidl
@@ -103,7 +103,7 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
      */
-    ISupplicantP2pNetwork addNetwork();
+    @PropagateAllowBlocking ISupplicantP2pNetwork addNetwork();
 
     /**
      * This command can be used to add a UPNP service.
@@ -320,7 +320,7 @@
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
      *         |SupplicantStatusCode.FAILURE_NETWORK_UNKNOWN|
      */
-    ISupplicantP2pNetwork getNetwork(in int id);
+    @PropagateAllowBlocking ISupplicantP2pNetwork getNetwork(in int id);
 
     /**
      * Gets the operational SSID of the device.
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
index b48fa04..5cb236f 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantStaIface.aidl
@@ -86,7 +86,7 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
      */
-    ISupplicantStaNetwork addNetwork();
+    @PropagateAllowBlocking ISupplicantStaNetwork addNetwork();
 
     /**
      * Send driver command to add the specified RX filter.
@@ -231,7 +231,7 @@
      *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
      *         |SupplicantStatusCode.FAILURE_NETWORK_UNKNOWN|
      */
-    ISupplicantStaNetwork getNetwork(in int id);
+    @PropagateAllowBlocking ISupplicantStaNetwork getNetwork(in int id);
 
     /**
      * Retrieves the type of the network interface.