diff --git a/audio/aidl/common/include/Utils.h b/audio/aidl/common/include/Utils.h
index bd903d7..3b08de7 100644
--- a/audio/aidl/common/include/Utils.h
+++ b/audio/aidl/common/include/Utils.h
@@ -29,6 +29,21 @@
 #include <aidl/android/media/audio/common/AudioMode.h>
 #include <aidl/android/media/audio/common/AudioOutputFlags.h>
 #include <aidl/android/media/audio/common/PcmType.h>
+#include <android/binder_auto_utils.h>
+
+namespace ndk {
+
+// This enables use of 'error/expected_utils' for ScopedAStatus.
+
+inline bool errorIsOk(const ScopedAStatus& s) {
+    return s.isOk();
+}
+
+inline std::string errorToString(const ScopedAStatus& s) {
+    return s.getDescription();
+}
+
+}  // namespace ndk
 
 namespace aidl::android::hardware::audio::common {
 
diff --git a/audio/aidl/default/EffectConfig.cpp b/audio/aidl/default/EffectConfig.cpp
index 71d111b..f3f674f 100644
--- a/audio/aidl/default/EffectConfig.cpp
+++ b/audio/aidl/default/EffectConfig.cpp
@@ -18,6 +18,7 @@
 #include <string>
 #define LOG_TAG "AHAL_EffectConfig"
 #include <android-base/logging.h>
+#include <system/audio_aidl_utils.h>
 #include <system/audio_effects/audio_effects_conf.h>
 #include <system/audio_effects/effect_uuid.h>
 
@@ -162,7 +163,7 @@
     RETURN_VALUE_IF((libraryUuid.uuid == getEffectUuidZero()), false, "invalidUuidAttribute");
 
     LOG(DEBUG) << __func__ << (isProxy ? " proxy " : libraryUuid.name) << " : "
-               << libraryUuid.uuid.toString();
+               << ::android::audio::utils::toString(libraryUuid.uuid);
     return true;
 }
 
@@ -250,6 +251,7 @@
     V("downmix", Downmix)                                  \
     V("dynamics_processing", DynamicsProcessing)           \
     V("equalizer", Equalizer)                              \
+    V("extensioneffect", Extension)                        \
     V("haptic_generator", HapticGenerator)                 \
     V("loudness_enhancer", LoudnessEnhancer)               \
     V("env_reverb", EnvReverb)                             \
diff --git a/audio/aidl/default/EffectFactory.cpp b/audio/aidl/default/EffectFactory.cpp
index 7073a10..8ed62c9 100644
--- a/audio/aidl/default/EffectFactory.cpp
+++ b/audio/aidl/default/EffectFactory.cpp
@@ -25,6 +25,7 @@
 
 #include <android-base/logging.h>
 #include <android/binder_ibinder_platform.h>
+#include <system/audio_aidl_utils.h>
 #include <system/audio_effects/effect_uuid.h>
 #include <system/thread_defs.h>
 
@@ -47,7 +48,7 @@
         for (const auto& it : mEffectMap) {
             if (auto spEffect = it.first.lock()) {
                 LOG(ERROR) << __func__ << " erase remaining instance UUID "
-                           << it.second.first.toString();
+                           << ::android::audio::utils::toString(it.second.first);
                 destroyEffectImpl(spEffect);
             }
         }
@@ -123,7 +124,7 @@
 
 ndk::ScopedAStatus Factory::createEffect(const AudioUuid& in_impl_uuid,
                                          std::shared_ptr<IEffect>* _aidl_return) {
-    LOG(DEBUG) << __func__ << ": UUID " << in_impl_uuid.toString();
+    LOG(DEBUG) << __func__ << ": UUID " << ::android::audio::utils::toString(in_impl_uuid);
     if (mEffectLibMap.count(in_impl_uuid)) {
         auto& entry = mEffectLibMap[in_impl_uuid];
         getDlSyms(entry);
@@ -163,7 +164,8 @@
                       "dlNulldestroyEffectFunc");
             RETURN_IF_BINDER_EXCEPTION(interface->destroyEffectFunc(in_handle));
         } else {
-            LOG(ERROR) << __func__ << ": UUID " << uuid.toString() << " does not exist in libMap!";
+            LOG(ERROR) << __func__ << ": UUID " << ::android::audio::utils::toString(uuid)
+                       << " does not exist in libMap!";
             return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
         }
         mEffectMap.erase(effectIt);
@@ -207,8 +209,8 @@
         return false;
     }
 
-    LOG(INFO) << __func__ << " dlopen lib:" << path << "\nimpl:" << impl.toString()
-              << "\nhandle:" << libHandle;
+    LOG(INFO) << __func__ << " dlopen lib:" << path
+              << "\nimpl:" << ::android::audio::utils::toString(impl) << "\nhandle:" << libHandle;
     auto interface = new effect_dl_interface_s{nullptr, nullptr, nullptr};
     mEffectLibMap.insert(
             {impl,
@@ -228,8 +230,10 @@
         id.uuid = configLib.uuid;
         id.proxy = proxyUuid;
         LOG(DEBUG) << __func__ << " loading lib " << path->second << ": typeUuid "
-                   << id.type.toString() << "\nimplUuid " << id.uuid.toString() << " proxyUuid "
-                   << (proxyUuid.has_value() ? proxyUuid->toString() : "null");
+                   << ::android::audio::utils::toString(id.type) << "\nimplUuid "
+                   << ::android::audio::utils::toString(id.uuid) << " proxyUuid "
+                   << (proxyUuid.has_value() ? ::android::audio::utils::toString(proxyUuid.value())
+                                             : "null");
         if (openEffectLibrary(id.uuid, path->second)) {
             mIdentitySet.insert(std::move(id));
         }
diff --git a/audio/aidl/default/Module.cpp b/audio/aidl/default/Module.cpp
index 6885a49..6f89d4b 100644
--- a/audio/aidl/default/Module.cpp
+++ b/audio/aidl/default/Module.cpp
@@ -18,19 +18,18 @@
 #include <set>
 
 #define LOG_TAG "AHAL_Module"
-#include <android-base/logging.h>
-#include <android/binder_ibinder_platform.h>
-
 #include <Utils.h>
 #include <aidl/android/media/audio/common/AudioInputFlags.h>
 #include <aidl/android/media/audio/common/AudioOutputFlags.h>
+#include <android-base/logging.h>
+#include <android/binder_ibinder_platform.h>
+#include <error/expected_utils.h>
 
 #include "core-impl/Bluetooth.h"
 #include "core-impl/Module.h"
 #include "core-impl/ModuleUsb.h"
 #include "core-impl/SoundDose.h"
 #include "core-impl/StreamStub.h"
-#include "core-impl/StreamUsb.h"
 #include "core-impl/Telephony.h"
 #include "core-impl/utils.h"
 
@@ -119,30 +118,6 @@
     }
 }
 
-// static
-StreamIn::CreateInstance Module::getStreamInCreator(Type type) {
-    switch (type) {
-        case Type::USB:
-            return StreamInUsb::createInstance;
-        case Type::DEFAULT:
-        case Type::R_SUBMIX:
-        default:
-            return StreamInStub::createInstance;
-    }
-}
-
-// static
-StreamOut::CreateInstance Module::getStreamOutCreator(Type type) {
-    switch (type) {
-        case Type::USB:
-            return StreamOutUsb::createInstance;
-        case Type::DEFAULT:
-        case Type::R_SUBMIX:
-        default:
-            return StreamOutStub::createInstance;
-    }
-}
-
 std::ostream& operator<<(std::ostream& os, Module::Type t) {
     switch (t) {
         case Module::Type::DEFAULT:
@@ -207,7 +182,8 @@
                 std::make_unique<StreamContext::CommandMQ>(1, true /*configureEventFlagWord*/),
                 std::make_unique<StreamContext::ReplyMQ>(1, true /*configureEventFlagWord*/),
                 portConfigIt->format.value(), portConfigIt->channelMask.value(),
-                portConfigIt->sampleRate.value().value,
+                portConfigIt->sampleRate.value().value, flags,
+                portConfigIt->ext.get<AudioPortExt::mix>().handle,
                 std::make_unique<StreamContext::DataMQ>(frameSize * in_bufferSizeFrames),
                 asyncCallback, outEventCallback, params);
         if (temp.isValid()) {
@@ -339,30 +315,61 @@
     do_insert(patch.sinkPortConfigIds);
 }
 
-void Module::updateStreamsConnectedState(const AudioPatch& oldPatch, const AudioPatch& newPatch) {
+ndk::ScopedAStatus Module::updateStreamsConnectedState(const AudioPatch& oldPatch,
+                                                       const AudioPatch& newPatch) {
     // Streams from the old patch need to be disconnected, streams from the new
     // patch need to be connected. If the stream belongs to both patches, no need
     // to update it.
-    std::set<int32_t> idsToDisconnect, idsToConnect;
+    auto maybeFailure = ndk::ScopedAStatus::ok();
+    std::set<int32_t> idsToDisconnect, idsToConnect, idsToDisconnectOnFailure;
     idsToDisconnect.insert(oldPatch.sourcePortConfigIds.begin(),
                            oldPatch.sourcePortConfigIds.end());
     idsToDisconnect.insert(oldPatch.sinkPortConfigIds.begin(), oldPatch.sinkPortConfigIds.end());
     idsToConnect.insert(newPatch.sourcePortConfigIds.begin(), newPatch.sourcePortConfigIds.end());
     idsToConnect.insert(newPatch.sinkPortConfigIds.begin(), newPatch.sinkPortConfigIds.end());
     std::for_each(idsToDisconnect.begin(), idsToDisconnect.end(), [&](const auto& portConfigId) {
-        if (idsToConnect.count(portConfigId) == 0) {
-            LOG(DEBUG) << "The stream on port config id " << portConfigId << " is not connected";
-            mStreams.setStreamIsConnected(portConfigId, {});
+        if (idsToConnect.count(portConfigId) == 0 && mStreams.count(portConfigId) != 0) {
+            if (auto status = mStreams.setStreamConnectedDevices(portConfigId, {}); status.isOk()) {
+                LOG(DEBUG) << "updateStreamsConnectedState: The stream on port config id "
+                           << portConfigId << " has been disconnected";
+            } else {
+                // Disconnection is tricky to roll back, just register a failure.
+                maybeFailure = std::move(status);
+            }
         }
     });
+    if (!maybeFailure.isOk()) return maybeFailure;
     std::for_each(idsToConnect.begin(), idsToConnect.end(), [&](const auto& portConfigId) {
-        if (idsToDisconnect.count(portConfigId) == 0) {
+        if (idsToDisconnect.count(portConfigId) == 0 && mStreams.count(portConfigId) != 0) {
             const auto connectedDevices = findConnectedDevices(portConfigId);
-            LOG(DEBUG) << "The stream on port config id " << portConfigId
-                       << " is connected to: " << ::android::internal::ToString(connectedDevices);
-            mStreams.setStreamIsConnected(portConfigId, connectedDevices);
+            if (connectedDevices.empty()) {
+                // This is important as workers use the vector size to derive the connection status.
+                LOG(FATAL) << "updateStreamsConnectedState: No connected devices found for port "
+                              "config id "
+                           << portConfigId;
+            }
+            if (auto status = mStreams.setStreamConnectedDevices(portConfigId, connectedDevices);
+                status.isOk()) {
+                LOG(DEBUG) << "updateStreamsConnectedState: The stream on port config id "
+                           << portConfigId << " has been connected to: "
+                           << ::android::internal::ToString(connectedDevices);
+            } else {
+                maybeFailure = std::move(status);
+                idsToDisconnectOnFailure.insert(portConfigId);
+            }
         }
     });
+    if (!maybeFailure.isOk()) {
+        LOG(WARNING) << __func__ << ": Due to a failure, disconnecting streams on port config ids "
+                     << ::android::internal::ToString(idsToDisconnectOnFailure);
+        std::for_each(idsToDisconnectOnFailure.begin(), idsToDisconnectOnFailure.end(),
+                      [&](const auto& portConfigId) {
+                          auto status = mStreams.setStreamConnectedDevices(portConfigId, {});
+                          (void)status.isOk();  // Can't do much about a failure here.
+                      });
+        return maybeFailure;
+    }
+    return ndk::ScopedAStatus::ok();
 }
 
 ndk::ScopedAStatus Module::setModuleDebug(
@@ -469,10 +476,7 @@
     }
 
     if (!mDebug.simulateDeviceConnections) {
-        if (ndk::ScopedAStatus status = populateConnectedDevicePort(&connectedPort);
-            !status.isOk()) {
-            return status;
-        }
+        RETURN_STATUS_IF_ERROR(populateConnectedDevicePort(&connectedPort));
     } else {
         auto& connectedProfiles = getConfig().connectedProfiles;
         if (auto connectedProfilesIt = connectedProfiles.find(templateId);
@@ -647,34 +651,26 @@
     LOG(DEBUG) << __func__ << ": port config id " << in_args.portConfigId << ", buffer size "
                << in_args.bufferSizeFrames << " frames";
     AudioPort* port = nullptr;
-    if (auto status = findPortIdForNewStream(in_args.portConfigId, &port); !status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(findPortIdForNewStream(in_args.portConfigId, &port));
     if (port->flags.getTag() != AudioIoFlags::Tag::input) {
         LOG(ERROR) << __func__ << ": port config id " << in_args.portConfigId
                    << " does not correspond to an input mix port";
         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
     }
     StreamContext context;
-    if (auto status = createStreamContext(in_args.portConfigId, in_args.bufferSizeFrames, nullptr,
-                                          nullptr, &context);
-        !status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(createStreamContext(in_args.portConfigId, in_args.bufferSizeFrames,
+                                               nullptr, nullptr, &context));
     context.fillDescriptor(&_aidl_return->desc);
     std::shared_ptr<StreamIn> stream;
-    ndk::ScopedAStatus status = getStreamInCreator(mType)(in_args.sinkMetadata, std::move(context),
-                                                          mConfig->microphones, &stream);
-    if (!status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(createInputStream(in_args.sinkMetadata, std::move(context),
+                                             mConfig->microphones, &stream));
     StreamWrapper streamWrapper(stream);
+    if (auto patchIt = mPatches.find(in_args.portConfigId); patchIt != mPatches.end()) {
+        RETURN_STATUS_IF_ERROR(
+                streamWrapper.setConnectedDevices(findConnectedDevices(in_args.portConfigId)));
+    }
     AIBinder_setMinSchedulerPolicy(streamWrapper.getBinder().get(), SCHED_NORMAL,
                                    ANDROID_PRIORITY_AUDIO);
-    auto patchIt = mPatches.find(in_args.portConfigId);
-    if (patchIt != mPatches.end()) {
-        streamWrapper.setStreamIsConnected(findConnectedDevices(in_args.portConfigId));
-    }
     mStreams.insert(port->id, in_args.portConfigId, std::move(streamWrapper));
     _aidl_return->stream = std::move(stream);
     return ndk::ScopedAStatus::ok();
@@ -686,9 +682,7 @@
                << (in_args.offloadInfo.has_value()) << ", buffer size " << in_args.bufferSizeFrames
                << " frames";
     AudioPort* port = nullptr;
-    if (auto status = findPortIdForNewStream(in_args.portConfigId, &port); !status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(findPortIdForNewStream(in_args.portConfigId, &port));
     if (port->flags.getTag() != AudioIoFlags::Tag::output) {
         LOG(ERROR) << __func__ << ": port config id " << in_args.portConfigId
                    << " does not correspond to an output mix port";
@@ -709,26 +703,20 @@
         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
     }
     StreamContext context;
-    if (auto status = createStreamContext(in_args.portConfigId, in_args.bufferSizeFrames,
-                                          isNonBlocking ? in_args.callback : nullptr,
-                                          in_args.eventCallback, &context);
-        !status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(createStreamContext(in_args.portConfigId, in_args.bufferSizeFrames,
+                                               isNonBlocking ? in_args.callback : nullptr,
+                                               in_args.eventCallback, &context));
     context.fillDescriptor(&_aidl_return->desc);
     std::shared_ptr<StreamOut> stream;
-    ndk::ScopedAStatus status = getStreamOutCreator(mType)(
-            in_args.sourceMetadata, std::move(context), in_args.offloadInfo, &stream);
-    if (!status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(createOutputStream(in_args.sourceMetadata, std::move(context),
+                                              in_args.offloadInfo, &stream));
     StreamWrapper streamWrapper(stream);
+    if (auto patchIt = mPatches.find(in_args.portConfigId); patchIt != mPatches.end()) {
+        RETURN_STATUS_IF_ERROR(
+                streamWrapper.setConnectedDevices(findConnectedDevices(in_args.portConfigId)));
+    }
     AIBinder_setMinSchedulerPolicy(streamWrapper.getBinder().get(), SCHED_NORMAL,
                                    ANDROID_PRIORITY_AUDIO);
-    auto patchIt = mPatches.find(in_args.portConfigId);
-    if (patchIt != mPatches.end()) {
-        streamWrapper.setStreamIsConnected(findConnectedDevices(in_args.portConfigId));
-    }
     mStreams.insert(port->id, in_args.portConfigId, std::move(streamWrapper));
     _aidl_return->stream = std::move(stream);
     return ndk::ScopedAStatus::ok();
@@ -796,10 +784,7 @@
             return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
         }
     }
-
-    if (auto status = checkAudioPatchEndpointsMatch(sources, sinks); !status.isOk()) {
-        return status;
-    }
+    RETURN_STATUS_IF_ERROR(checkAudioPatchEndpointsMatch(sources, sinks));
 
     auto& patches = getConfig().patches;
     auto existing = patches.end();
@@ -834,13 +819,20 @@
     if (existing == patches.end()) {
         _aidl_return->id = getConfig().nextPatchId++;
         patches.push_back(*_aidl_return);
-        existing = patches.begin() + (patches.size() - 1);
     } else {
         oldPatch = *existing;
-        *existing = *_aidl_return;
     }
-    registerPatch(*existing);
-    updateStreamsConnectedState(oldPatch, *_aidl_return);
+    patchesBackup = mPatches;
+    registerPatch(*_aidl_return);
+    if (auto status = updateStreamsConnectedState(oldPatch, *_aidl_return); !status.isOk()) {
+        mPatches = std::move(*patchesBackup);
+        if (existing == patches.end()) {
+            patches.pop_back();
+        } else {
+            *existing = oldPatch;
+        }
+        return status;
+    }
 
     LOG(DEBUG) << __func__ << ": " << (oldPatch.id == 0 ? "created" : "updated") << " patch "
                << _aidl_return->toString();
@@ -992,8 +984,12 @@
     auto& patches = getConfig().patches;
     auto patchIt = findById<AudioPatch>(patches, in_patchId);
     if (patchIt != patches.end()) {
+        auto patchesBackup = mPatches;
         cleanUpPatch(patchIt->id);
-        updateStreamsConnectedState(*patchIt, AudioPatch{});
+        if (auto status = updateStreamsConnectedState(*patchIt, AudioPatch{}); !status.isOk()) {
+            mPatches = std::move(patchesBackup);
+            return status;
+        }
         patches.erase(patchIt);
         LOG(DEBUG) << __func__ << ": erased patch " << in_patchId;
         return ndk::ScopedAStatus::ok();
@@ -1325,6 +1321,22 @@
     return mIsMmapSupported.value();
 }
 
+ndk::ScopedAStatus Module::createInputStream(const SinkMetadata& sinkMetadata,
+                                             StreamContext&& context,
+                                             const std::vector<MicrophoneInfo>& microphones,
+                                             std::shared_ptr<StreamIn>* result) {
+    return createStreamInstance<StreamInStub>(result, sinkMetadata, std::move(context),
+                                              microphones);
+}
+
+ndk::ScopedAStatus Module::createOutputStream(const SourceMetadata& sourceMetadata,
+                                              StreamContext&& context,
+                                              const std::optional<AudioOffloadInfo>& offloadInfo,
+                                              std::shared_ptr<StreamOut>* result) {
+    return createStreamInstance<StreamOutStub>(result, sourceMetadata, std::move(context),
+                                               offloadInfo);
+}
+
 ndk::ScopedAStatus Module::populateConnectedDevicePort(AudioPort* audioPort __unused) {
     LOG(VERBOSE) << __func__ << ": do nothing and return ok";
     return ndk::ScopedAStatus::ok();
diff --git a/audio/aidl/default/Stream.cpp b/audio/aidl/default/Stream.cpp
index 77b0601..73f1293 100644
--- a/audio/aidl/default/Stream.cpp
+++ b/audio/aidl/default/Stream.cpp
@@ -152,6 +152,7 @@
         case Tag::halReservedExit:
             if (const int32_t cookie = command.get<Tag::halReservedExit>();
                 cookie == mInternalCommandCookie) {
+                mDriver->shutdown();
                 setClosed();
                 // This is an internal command, no need to reply.
                 return Status::EXIT;
@@ -364,6 +365,7 @@
         case Tag::halReservedExit:
             if (const int32_t cookie = command.get<Tag::halReservedExit>();
                 cookie == mInternalCommandCookie) {
+                mDriver->shutdown();
                 setClosed();
                 // This is an internal command, no need to reply.
                 return Status::EXIT;
@@ -567,8 +569,7 @@
     return !fatal;
 }
 
-template <class Metadata>
-StreamCommonImpl<Metadata>::~StreamCommonImpl() {
+StreamCommonImpl::~StreamCommonImpl() {
     if (!isClosed()) {
         LOG(ERROR) << __func__ << ": stream was not closed prior to destruction, resource leak";
         stopWorker();
@@ -576,19 +577,16 @@
     }
 }
 
-template <class Metadata>
-void StreamCommonImpl<Metadata>::createStreamCommon(
+ndk::ScopedAStatus StreamCommonImpl::initInstance(
         const std::shared_ptr<StreamCommonInterface>& delegate) {
-    if (mCommon != nullptr) {
-        LOG(FATAL) << __func__ << ": attempting to create the common interface twice";
-    }
-    mCommon = ndk::SharedRefBase::make<StreamCommon>(delegate);
+    mCommon = ndk::SharedRefBase::make<StreamCommonDelegator>(delegate);
     mCommonBinder = mCommon->asBinder();
     AIBinder_setMinSchedulerPolicy(mCommonBinder.get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
+    return mWorker->start() ? ndk::ScopedAStatus::ok()
+                            : ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::getStreamCommon(
+ndk::ScopedAStatus StreamCommonImpl::getStreamCommonCommon(
         std::shared_ptr<IStreamCommon>* _aidl_return) {
     if (mCommon == nullptr) {
         LOG(FATAL) << __func__ << ": the common interface was not created";
@@ -598,30 +596,26 @@
     return ndk::ScopedAStatus::ok();
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::updateHwAvSyncId(int32_t in_hwAvSyncId) {
+ndk::ScopedAStatus StreamCommonImpl::updateHwAvSyncId(int32_t in_hwAvSyncId) {
     LOG(DEBUG) << __func__ << ": id " << in_hwAvSyncId;
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::getVendorParameters(
+ndk::ScopedAStatus StreamCommonImpl::getVendorParameters(
         const std::vector<std::string>& in_ids, std::vector<VendorParameter>* _aidl_return) {
     LOG(DEBUG) << __func__ << ": id count: " << in_ids.size();
     (void)_aidl_return;
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::setVendorParameters(
+ndk::ScopedAStatus StreamCommonImpl::setVendorParameters(
         const std::vector<VendorParameter>& in_parameters, bool in_async) {
     LOG(DEBUG) << __func__ << ": parameters count " << in_parameters.size()
                << ", async: " << in_async;
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::addEffect(
+ndk::ScopedAStatus StreamCommonImpl::addEffect(
         const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>& in_effect) {
     if (in_effect == nullptr) {
         LOG(DEBUG) << __func__ << ": null effect";
@@ -631,8 +625,7 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::removeEffect(
+ndk::ScopedAStatus StreamCommonImpl::removeEffect(
         const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>& in_effect) {
     if (in_effect == nullptr) {
         LOG(DEBUG) << __func__ << ": null effect";
@@ -642,8 +635,7 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::close() {
+ndk::ScopedAStatus StreamCommonImpl::close() {
     LOG(DEBUG) << __func__;
     if (!isClosed()) {
         stopWorker();
@@ -659,8 +651,7 @@
     }
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::prepareToClose() {
+ndk::ScopedAStatus StreamCommonImpl::prepareToClose() {
     LOG(DEBUG) << __func__;
     if (!isClosed()) {
         return ndk::ScopedAStatus::ok();
@@ -669,8 +660,7 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
 }
 
-template <class Metadata>
-void StreamCommonImpl<Metadata>::stopWorker() {
+void StreamCommonImpl::stopWorker() {
     if (auto commandMQ = mContext.getCommandMQ(); commandMQ != nullptr) {
         LOG(DEBUG) << __func__ << ": asking the worker to exit...";
         auto cmd = StreamDescriptor::Command::make<StreamDescriptor::Command::Tag::halReservedExit>(
@@ -686,10 +676,12 @@
     }
 }
 
-template <class Metadata>
-ndk::ScopedAStatus StreamCommonImpl<Metadata>::updateMetadata(const Metadata& metadata) {
+ndk::ScopedAStatus StreamCommonImpl::updateMetadataCommon(const Metadata& metadata) {
     LOG(DEBUG) << __func__;
     if (!isClosed()) {
+        if (metadata.index() != mMetadata.index()) {
+            LOG(FATAL) << __func__ << ": changing metadata variant is not allowed";
+        }
         mMetadata = metadata;
         return ndk::ScopedAStatus::ok();
     }
@@ -697,12 +689,10 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
 }
 
-// static
-ndk::ScopedAStatus StreamIn::initInstance(const std::shared_ptr<StreamIn>& stream) {
-    if (auto status = stream->init(); !status.isOk()) {
-        return status;
-    }
-    stream->createStreamCommon(stream);
+ndk::ScopedAStatus StreamCommonImpl::setConnectedDevices(
+        const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices) {
+    mWorker->setIsConnected(!devices.empty());
+    mConnectedDevices = devices;
     return ndk::ScopedAStatus::ok();
 }
 
@@ -716,12 +706,8 @@
 }
 }  // namespace
 
-StreamIn::StreamIn(const SinkMetadata& sinkMetadata, StreamContext&& context,
-                   const DriverInterface::CreateInstance& createDriver,
-                   const StreamWorkerInterface::CreateInstance& createWorker,
-                   const std::vector<MicrophoneInfo>& microphones)
-    : StreamCommonImpl<SinkMetadata>(sinkMetadata, std::move(context), createDriver, createWorker),
-      mMicrophones(transformMicrophones(microphones)) {
+StreamIn::StreamIn(const std::vector<MicrophoneInfo>& microphones)
+    : mMicrophones(transformMicrophones(microphones)) {
     LOG(DEBUG) << __func__;
 }
 
@@ -729,9 +715,9 @@
         std::vector<MicrophoneDynamicInfo>* _aidl_return) {
     std::vector<MicrophoneDynamicInfo> result;
     std::vector<MicrophoneDynamicInfo::ChannelMapping> channelMapping{
-            getChannelCount(mContext.getChannelLayout()),
+            getChannelCount(getContext().getChannelLayout()),
             MicrophoneDynamicInfo::ChannelMapping::DIRECT};
-    for (auto it = mConnectedDevices.begin(); it != mConnectedDevices.end(); ++it) {
+    for (auto it = getConnectedDevices().begin(); it != getConnectedDevices().end(); ++it) {
         if (auto micIt = mMicrophones.find(*it); micIt != mMicrophones.end()) {
             MicrophoneDynamicInfo dynMic;
             dynMic.id = micIt->second;
@@ -777,22 +763,8 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-// static
-ndk::ScopedAStatus StreamOut::initInstance(const std::shared_ptr<StreamOut>& stream) {
-    if (auto status = stream->init(); !status.isOk()) {
-        return status;
-    }
-    stream->createStreamCommon(stream);
-    return ndk::ScopedAStatus::ok();
-}
-
-StreamOut::StreamOut(const SourceMetadata& sourceMetadata, StreamContext&& context,
-                     const DriverInterface::CreateInstance& createDriver,
-                     const StreamWorkerInterface::CreateInstance& createWorker,
-                     const std::optional<AudioOffloadInfo>& offloadInfo)
-    : StreamCommonImpl<SourceMetadata>(sourceMetadata, std::move(context), createDriver,
-                                       createWorker),
-      mOffloadInfo(offloadInfo) {
+StreamOut::StreamOut(const std::optional<AudioOffloadInfo>& offloadInfo)
+    : mOffloadInfo(offloadInfo) {
     LOG(DEBUG) << __func__;
 }
 
diff --git a/audio/aidl/default/StreamStub.cpp b/audio/aidl/default/StreamStub.cpp
index 2467320..d88dfbc 100644
--- a/audio/aidl/default/StreamStub.cpp
+++ b/audio/aidl/default/StreamStub.cpp
@@ -31,33 +31,34 @@
 
 namespace aidl::android::hardware::audio::core {
 
-DriverStub::DriverStub(const StreamContext& context, bool isInput)
-    : mFrameSizeBytes(context.getFrameSize()),
+StreamStub::StreamStub(const Metadata& metadata, StreamContext&& context)
+    : StreamCommonImpl(metadata, std::move(context)),
+      mFrameSizeBytes(context.getFrameSize()),
       mSampleRate(context.getSampleRate()),
       mIsAsynchronous(!!context.getAsyncCallback()),
-      mIsInput(isInput) {}
+      mIsInput(isInput(metadata)) {}
 
-::android::status_t DriverStub::init() {
+::android::status_t StreamStub::init() {
     usleep(500);
     return ::android::OK;
 }
 
-::android::status_t DriverStub::drain(StreamDescriptor::DrainMode) {
+::android::status_t StreamStub::drain(StreamDescriptor::DrainMode) {
     usleep(500);
     return ::android::OK;
 }
 
-::android::status_t DriverStub::flush() {
+::android::status_t StreamStub::flush() {
     usleep(500);
     return ::android::OK;
 }
 
-::android::status_t DriverStub::pause() {
+::android::status_t StreamStub::pause() {
     usleep(500);
     return ::android::OK;
 }
 
-::android::status_t DriverStub::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
+::android::status_t StreamStub::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
                                          int32_t* latencyMs) {
     static constexpr float kMicrosPerSecond = MICROS_PER_SECOND;
     static constexpr float kScaleFactor = .8f;
@@ -79,69 +80,19 @@
     return ::android::OK;
 }
 
-::android::status_t DriverStub::standby() {
+::android::status_t StreamStub::standby() {
     usleep(500);
     return ::android::OK;
 }
 
-::android::status_t DriverStub::setConnectedDevices(
-        const std::vector<AudioDevice>& connectedDevices __unused) {
-    usleep(500);
-    return ::android::OK;
-}
-
-// static
-ndk::ScopedAStatus StreamInStub::createInstance(const SinkMetadata& sinkMetadata,
-                                                StreamContext&& context,
-                                                const std::vector<MicrophoneInfo>& microphones,
-                                                std::shared_ptr<StreamIn>* result) {
-    std::shared_ptr<StreamIn> stream =
-            ndk::SharedRefBase::make<StreamInStub>(sinkMetadata, std::move(context), microphones);
-    if (auto status = initInstance(stream); !status.isOk()) {
-        return status;
-    }
-    *result = std::move(stream);
-    return ndk::ScopedAStatus::ok();
-}
+void StreamStub::shutdown() {}
 
 StreamInStub::StreamInStub(const SinkMetadata& sinkMetadata, StreamContext&& context,
                            const std::vector<MicrophoneInfo>& microphones)
-    : StreamIn(
-              sinkMetadata, std::move(context),
-              [](const StreamContext& ctx) -> DriverInterface* {
-                  return new DriverStub(ctx, true /*isInput*/);
-              },
-              [](const StreamContext& ctx, DriverInterface* driver) -> StreamWorkerInterface* {
-                  // The default worker implementation is used.
-                  return new StreamInWorker(ctx, driver);
-              },
-              microphones) {}
-
-// static
-ndk::ScopedAStatus StreamOutStub::createInstance(const SourceMetadata& sourceMetadata,
-                                                 StreamContext&& context,
-                                                 const std::optional<AudioOffloadInfo>& offloadInfo,
-                                                 std::shared_ptr<StreamOut>* result) {
-    std::shared_ptr<StreamOut> stream = ndk::SharedRefBase::make<StreamOutStub>(
-            sourceMetadata, std::move(context), offloadInfo);
-    if (auto status = initInstance(stream); !status.isOk()) {
-        return status;
-    }
-    *result = std::move(stream);
-    return ndk::ScopedAStatus::ok();
-}
+    : StreamStub(sinkMetadata, std::move(context)), StreamIn(microphones) {}
 
 StreamOutStub::StreamOutStub(const SourceMetadata& sourceMetadata, StreamContext&& context,
                              const std::optional<AudioOffloadInfo>& offloadInfo)
-    : StreamOut(
-              sourceMetadata, std::move(context),
-              [](const StreamContext& ctx) -> DriverInterface* {
-                  return new DriverStub(ctx, false /*isInput*/);
-              },
-              [](const StreamContext& ctx, DriverInterface* driver) -> StreamWorkerInterface* {
-                  // The default worker implementation is used.
-                  return new StreamOutWorker(ctx, driver);
-              },
-              offloadInfo) {}
+    : StreamStub(sourceMetadata, std::move(context)), StreamOut(offloadInfo) {}
 
 }  // namespace aidl::android::hardware::audio::core
diff --git a/audio/aidl/default/extension/ExtensionEffect.cpp b/audio/aidl/default/extension/ExtensionEffect.cpp
index c4eebc0..4a4d71b6 100644
--- a/audio/aidl/default/extension/ExtensionEffect.cpp
+++ b/audio/aidl/default/extension/ExtensionEffect.cpp
@@ -30,8 +30,8 @@
 using aidl::android::hardware::audio::effect::DefaultExtension;
 using aidl::android::hardware::audio::effect::Descriptor;
 using aidl::android::hardware::audio::effect::ExtensionEffect;
-using aidl::android::hardware::audio::effect::getEffectUuidExtensionImpl;
-using aidl::android::hardware::audio::effect::getEffectUuidExtensionType;
+using aidl::android::hardware::audio::effect::getEffectImplUuidExtension;
+using aidl::android::hardware::audio::effect::getEffectTypeUuidExtension;
 using aidl::android::hardware::audio::effect::IEffect;
 using aidl::android::hardware::audio::effect::Range;
 using aidl::android::hardware::audio::effect::VendorExtension;
@@ -39,7 +39,7 @@
 
 extern "C" binder_exception_t createEffect(const AudioUuid* in_impl_uuid,
                                            std::shared_ptr<IEffect>* instanceSpp) {
-    if (!in_impl_uuid || *in_impl_uuid != getEffectUuidExtensionImpl()) {
+    if (!in_impl_uuid || *in_impl_uuid != getEffectImplUuidExtension()) {
         LOG(ERROR) << __func__ << "uuid not supported";
         return EX_ILLEGAL_ARGUMENT;
     }
@@ -54,7 +54,7 @@
 }
 
 extern "C" binder_exception_t queryEffect(const AudioUuid* in_impl_uuid, Descriptor* _aidl_return) {
-    if (!in_impl_uuid || *in_impl_uuid != getEffectUuidExtensionImpl()) {
+    if (!in_impl_uuid || *in_impl_uuid != getEffectImplUuidExtension()) {
         LOG(ERROR) << __func__ << "uuid not supported";
         return EX_ILLEGAL_ARGUMENT;
     }
@@ -67,8 +67,8 @@
 const std::string ExtensionEffect::kEffectName = "ExtensionEffectExample";
 
 const Descriptor ExtensionEffect::kDescriptor = {
-        .common = {.id = {.type = getEffectUuidExtensionType(),
-                          .uuid = getEffectUuidExtensionImpl(),
+        .common = {.id = {.type = getEffectTypeUuidExtension(),
+                          .uuid = getEffectImplUuidExtension(),
                           .proxy = std::nullopt},
                    .name = ExtensionEffect::kEffectName,
                    .implementor = "The Android Open Source Project"}};
diff --git a/audio/aidl/default/include/core-impl/Module.h b/audio/aidl/default/include/core-impl/Module.h
index 83ecfaa..4a23637 100644
--- a/audio/aidl/default/include/core-impl/Module.h
+++ b/audio/aidl/default/include/core-impl/Module.h
@@ -33,39 +33,13 @@
     static constexpr int32_t kLatencyMs = 10;
     enum Type : int { DEFAULT, R_SUBMIX, USB };
 
+    static std::shared_ptr<Module> createInstance(Type type);
+
     explicit Module(Type type) : mType(type) {}
 
-    static std::shared_ptr<Module> createInstance(Type type);
-    static StreamIn::CreateInstance getStreamInCreator(Type type);
-    static StreamOut::CreateInstance getStreamOutCreator(Type type);
-
-  private:
-    struct VendorDebug {
-        static const std::string kForceTransientBurstName;
-        static const std::string kForceSynchronousDrainName;
-        bool forceTransientBurst = false;
-        bool forceSynchronousDrain = false;
-    };
-    // Helper used for interfaces that require a persistent instance. We hold them via a strong
-    // pointer. The binder token is retained for a call to 'setMinSchedulerPolicy'.
-    template <class C>
-    struct ChildInterface : private std::pair<std::shared_ptr<C>, ndk::SpAIBinder> {
-        ChildInterface() {}
-        ChildInterface& operator=(const std::shared_ptr<C>& c) {
-            return operator=(std::shared_ptr<C>(c));
-        }
-        ChildInterface& operator=(std::shared_ptr<C>&& c) {
-            this->first = std::move(c);
-            this->second = this->first->asBinder();
-            AIBinder_setMinSchedulerPolicy(this->second.get(), SCHED_NORMAL,
-                                           ANDROID_PRIORITY_AUDIO);
-            return *this;
-        }
-        explicit operator bool() const { return !!this->first; }
-        C& operator*() const { return *(this->first); }
-        C* operator->() const { return this->first; }
-        std::shared_ptr<C> getPtr() const { return this->first; }
-    };
+  protected:
+    // The vendor extension done via inheritance can override interface methods and augment
+    // a call to the base implementation.
 
     ndk::ScopedAStatus setModuleDebug(
             const ::aidl::android::hardware::audio::core::ModuleDebug& in_debug) override;
@@ -146,29 +120,46 @@
     ndk::ScopedAStatus getAAudioMixerBurstCount(int32_t* _aidl_return) override;
     ndk::ScopedAStatus getAAudioHardwareBurstMinUsec(int32_t* _aidl_return) override;
 
-    void cleanUpPatch(int32_t patchId);
-    ndk::ScopedAStatus createStreamContext(
-            int32_t in_portConfigId, int64_t in_bufferSizeFrames,
-            std::shared_ptr<IStreamCallback> asyncCallback,
-            std::shared_ptr<IStreamOutEventCallback> outEventCallback,
-            ::aidl::android::hardware::audio::core::StreamContext* out_context);
-    std::vector<::aidl::android::media::audio::common::AudioDevice> findConnectedDevices(
-            int32_t portConfigId);
-    std::set<int32_t> findConnectedPortConfigIds(int32_t portConfigId);
-    ndk::ScopedAStatus findPortIdForNewStream(
-            int32_t in_portConfigId, ::aidl::android::media::audio::common::AudioPort** port);
-    internal::Configuration& getConfig();
-    template <typename C>
-    std::set<int32_t> portIdsFromPortConfigIds(C portConfigIds);
-    void registerPatch(const AudioPatch& patch);
-    void updateStreamsConnectedState(const AudioPatch& oldPatch, const AudioPatch& newPatch);
-    bool isMmapSupported();
-
     // This value is used for all AudioPatches.
     static constexpr int32_t kMinimumStreamBufferSizeFrames = 256;
     // The maximum stream buffer size is 1 GiB = 2 ** 30 bytes;
     static constexpr int32_t kMaximumStreamBufferSizeBytes = 1 << 30;
 
+  private:
+    struct VendorDebug {
+        static const std::string kForceTransientBurstName;
+        static const std::string kForceSynchronousDrainName;
+        bool forceTransientBurst = false;
+        bool forceSynchronousDrain = false;
+    };
+    // Helper used for interfaces that require a persistent instance. We hold them via a strong
+    // pointer. The binder token is retained for a call to 'setMinSchedulerPolicy'.
+    template <class C>
+    struct ChildInterface : private std::pair<std::shared_ptr<C>, ndk::SpAIBinder> {
+        ChildInterface() {}
+        ChildInterface& operator=(const std::shared_ptr<C>& c) {
+            return operator=(std::shared_ptr<C>(c));
+        }
+        ChildInterface& operator=(std::shared_ptr<C>&& c) {
+            this->first = std::move(c);
+            this->second = this->first->asBinder();
+            AIBinder_setMinSchedulerPolicy(this->second.get(), SCHED_NORMAL,
+                                           ANDROID_PRIORITY_AUDIO);
+            return *this;
+        }
+        explicit operator bool() const { return !!this->first; }
+        C& operator*() const { return *(this->first); }
+        C* operator->() const { return this->first; }
+        std::shared_ptr<C> getPtr() const { return this->first; }
+    };
+    // ids of device ports created at runtime via 'connectExternalDevice'.
+    // Also stores a list of ids of mix ports with dynamic profiles that were populated from
+    // the connected port. This list can be empty, thus an int->int multimap can't be used.
+    using ConnectedDevicePorts = std::map<int32_t, std::vector<int32_t>>;
+    // Maps port ids and port config ids to patch ids.
+    // Multimap because both ports and configs can be used by multiple patches.
+    using Patches = std::multimap<int32_t, int32_t>;
+
     const Type mType;
     std::unique_ptr<internal::Configuration> mConfig;
     ModuleDebug mDebug;
@@ -177,19 +168,29 @@
     ChildInterface<IBluetooth> mBluetooth;
     ChildInterface<IBluetoothA2dp> mBluetoothA2dp;
     ChildInterface<IBluetoothLe> mBluetoothLe;
-    // ids of device ports created at runtime via 'connectExternalDevice'.
-    // Also stores ids of mix ports with dynamic profiles which got populated from the connected
-    // port.
-    std::map<int32_t, std::vector<int32_t>> mConnectedDevicePorts;
+    ConnectedDevicePorts mConnectedDevicePorts;
     Streams mStreams;
-    // Maps port ids and port config ids to patch ids.
-    // Multimap because both ports and configs can be used by multiple patches.
-    std::multimap<int32_t, int32_t> mPatches;
+    Patches mPatches;
     bool mMicMute = false;
+    bool mMasterMute = false;
+    float mMasterVolume = 1.0f;
     ChildInterface<sounddose::ISoundDose> mSoundDose;
     std::optional<bool> mIsMmapSupported;
 
   protected:
+    // The following virtual functions are intended for vendor extension via inheritance.
+
+    virtual ndk::ScopedAStatus createInputStream(
+            const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
+            StreamContext&& context,
+            const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones,
+            std::shared_ptr<StreamIn>* result);
+    virtual ndk::ScopedAStatus createOutputStream(
+            const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
+            StreamContext&& context,
+            const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
+                    offloadInfo,
+            std::shared_ptr<StreamOut>* result);
     // If the module is unable to populate the connected device port correctly, the returned error
     // code must correspond to the errors of `IModule.connectedExternalDevice` method.
     virtual ndk::ScopedAStatus populateConnectedDevicePort(
@@ -204,8 +205,31 @@
     virtual ndk::ScopedAStatus onMasterMuteChanged(bool mute);
     virtual ndk::ScopedAStatus onMasterVolumeChanged(float volume);
 
-    bool mMasterMute = false;
-    float mMasterVolume = 1.0f;
+    // Utility and helper functions accessible to subclasses.
+    void cleanUpPatch(int32_t patchId);
+    ndk::ScopedAStatus createStreamContext(
+            int32_t in_portConfigId, int64_t in_bufferSizeFrames,
+            std::shared_ptr<IStreamCallback> asyncCallback,
+            std::shared_ptr<IStreamOutEventCallback> outEventCallback,
+            ::aidl::android::hardware::audio::core::StreamContext* out_context);
+    std::vector<::aidl::android::media::audio::common::AudioDevice> findConnectedDevices(
+            int32_t portConfigId);
+    std::set<int32_t> findConnectedPortConfigIds(int32_t portConfigId);
+    ndk::ScopedAStatus findPortIdForNewStream(
+            int32_t in_portConfigId, ::aidl::android::media::audio::common::AudioPort** port);
+    internal::Configuration& getConfig();
+    const ConnectedDevicePorts& getConnectedDevicePorts() const { return mConnectedDevicePorts; }
+    bool getMasterMute() const { return mMasterMute; }
+    bool getMasterVolume() const { return mMasterVolume; }
+    bool getMicMute() const { return mMicMute; }
+    const Patches& getPatches() const { return mPatches; }
+    const Streams& getStreams() const { return mStreams; }
+    bool isMmapSupported();
+    template <typename C>
+    std::set<int32_t> portIdsFromPortConfigIds(C portConfigIds);
+    void registerPatch(const AudioPatch& patch);
+    ndk::ScopedAStatus updateStreamsConnectedState(const AudioPatch& oldPatch,
+                                                   const AudioPatch& newPatch);
 };
 
 }  // namespace aidl::android::hardware::audio::core
diff --git a/audio/aidl/default/include/core-impl/ModuleUsb.h b/audio/aidl/default/include/core-impl/ModuleUsb.h
index 1aa2244..5a5429d 100644
--- a/audio/aidl/default/include/core-impl/ModuleUsb.h
+++ b/audio/aidl/default/include/core-impl/ModuleUsb.h
@@ -32,6 +32,17 @@
     ndk::ScopedAStatus setMicMute(bool in_mute) override;
 
     // Module interfaces
+    ndk::ScopedAStatus createInputStream(
+            const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
+            StreamContext&& context,
+            const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones,
+            std::shared_ptr<StreamIn>* result) override;
+    ndk::ScopedAStatus createOutputStream(
+            const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
+            StreamContext&& context,
+            const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
+                    offloadInfo,
+            std::shared_ptr<StreamOut>* result) override;
     ndk::ScopedAStatus populateConnectedDevicePort(
             ::aidl::android::media::audio::common::AudioPort* audioPort) override;
     ndk::ScopedAStatus checkAudioPatchEndpointsMatch(
diff --git a/audio/aidl/default/include/core-impl/Stream.h b/audio/aidl/default/include/core-impl/Stream.h
index 476f1ff..c20a421 100644
--- a/audio/aidl/default/include/core-impl/Stream.h
+++ b/audio/aidl/default/include/core-impl/Stream.h
@@ -25,6 +25,7 @@
 #include <variant>
 
 #include <StreamWorker.h>
+#include <Utils.h>
 #include <aidl/android/hardware/audio/common/SinkMetadata.h>
 #include <aidl/android/hardware/audio/common/SourceMetadata.h>
 #include <aidl/android/hardware/audio/core/BnStreamCommon.h>
@@ -34,8 +35,10 @@
 #include <aidl/android/hardware/audio/core/IStreamOutEventCallback.h>
 #include <aidl/android/hardware/audio/core/StreamDescriptor.h>
 #include <aidl/android/media/audio/common/AudioDevice.h>
+#include <aidl/android/media/audio/common/AudioIoFlags.h>
 #include <aidl/android/media/audio/common/AudioOffloadInfo.h>
 #include <aidl/android/media/audio/common/MicrophoneInfo.h>
+#include <error/expected_utils.h>
 #include <fmq/AidlMessageQueue.h>
 #include <system/thread_defs.h>
 #include <utils/Errors.h>
@@ -77,7 +80,8 @@
     StreamContext(std::unique_ptr<CommandMQ> commandMQ, std::unique_ptr<ReplyMQ> replyMQ,
                   const ::aidl::android::media::audio::common::AudioFormatDescription& format,
                   const ::aidl::android::media::audio::common::AudioChannelLayout& channelLayout,
-                  int sampleRate, std::unique_ptr<DataMQ> dataMQ,
+                  int sampleRate, const ::aidl::android::media::audio::common::AudioIoFlags& flags,
+                  int32_t mixPortHandle, std::unique_ptr<DataMQ> dataMQ,
                   std::shared_ptr<IStreamCallback> asyncCallback,
                   std::shared_ptr<IStreamOutEventCallback> outEventCallback,
                   DebugParameters debugParameters)
@@ -87,6 +91,8 @@
           mFormat(format),
           mChannelLayout(channelLayout),
           mSampleRate(sampleRate),
+          mFlags(flags),
+          mMixPortHandle(mixPortHandle),
           mDataMQ(std::move(dataMQ)),
           mAsyncCallback(asyncCallback),
           mOutEventCallback(outEventCallback),
@@ -98,6 +104,8 @@
           mFormat(other.mFormat),
           mChannelLayout(other.mChannelLayout),
           mSampleRate(other.mSampleRate),
+          mFlags(std::move(other.mFlags)),
+          mMixPortHandle(other.mMixPortHandle),
           mDataMQ(std::move(other.mDataMQ)),
           mAsyncCallback(std::move(other.mAsyncCallback)),
           mOutEventCallback(std::move(other.mOutEventCallback)),
@@ -109,6 +117,8 @@
         mFormat = std::move(other.mFormat);
         mChannelLayout = std::move(other.mChannelLayout);
         mSampleRate = other.mSampleRate;
+        mFlags = std::move(other.mFlags);
+        mMixPortHandle = other.mMixPortHandle;
         mDataMQ = std::move(other.mDataMQ);
         mAsyncCallback = std::move(other.mAsyncCallback);
         mOutEventCallback = std::move(other.mOutEventCallback);
@@ -126,10 +136,12 @@
     ::aidl::android::media::audio::common::AudioFormatDescription getFormat() const {
         return mFormat;
     }
+    ::aidl::android::media::audio::common::AudioIoFlags getFlags() const { return mFlags; }
     bool getForceTransientBurst() const { return mDebugParameters.forceTransientBurst; }
     bool getForceSynchronousDrain() const { return mDebugParameters.forceSynchronousDrain; }
     size_t getFrameSize() const;
     int getInternalCommandCookie() const { return mInternalCommandCookie; }
+    int32_t getMixPortHandle() const { return mMixPortHandle; }
     std::shared_ptr<IStreamOutEventCallback> getOutEventCallback() const {
         return mOutEventCallback;
     }
@@ -146,14 +158,16 @@
     ::aidl::android::media::audio::common::AudioFormatDescription mFormat;
     ::aidl::android::media::audio::common::AudioChannelLayout mChannelLayout;
     int mSampleRate;
+    ::aidl::android::media::audio::common::AudioIoFlags mFlags;
+    int32_t mMixPortHandle;
     std::unique_ptr<DataMQ> mDataMQ;
     std::shared_ptr<IStreamCallback> mAsyncCallback;
     std::shared_ptr<IStreamOutEventCallback> mOutEventCallback;  // Only used by output streams
     DebugParameters mDebugParameters;
 };
 
+// This interface provides operations of the stream which are executed on the worker thread.
 struct DriverInterface {
-    using CreateInstance = std::function<DriverInterface*(const StreamContext&)>;
     virtual ~DriverInterface() = default;
     // All the methods below are called on the worker thread.
     virtual ::android::status_t init() = 0;  // This function is only called once.
@@ -163,11 +177,7 @@
     virtual ::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
                                          int32_t* latencyMs) = 0;
     virtual ::android::status_t standby() = 0;
-    // The method below is called from a thread of the Binder pool. Access to data shared with other
-    // methods of this interface must be done in a thread-safe manner.
-    virtual ::android::status_t setConnectedDevices(
-            const std::vector<::aidl::android::media::audio::common::AudioDevice>&
-                    connectedDevices) = 0;
+    virtual void shutdown() = 0;  // This function is only called once.
 };
 
 class StreamWorkerCommonLogic : public ::android::hardware::audio::common::StreamLogic {
@@ -284,14 +294,20 @@
 };
 using StreamOutWorker = StreamWorkerImpl<StreamOutWorkerLogic>;
 
-// This provides a C++ interface with methods of the IStreamCommon Binder interface,
-// but intentionally does not inherit from it. This is needed to avoid inheriting
-// StreamIn and StreamOut from two Binder interface classes, as these parts of the class
-// will be reference counted separately.
-//
-// The implementation of these common methods is in the StreamCommonImpl template class.
+// This interface provides operations of the stream which are executed on a Binder pool thread.
+// These methods originate both from the AIDL interface and its implementation.
 struct StreamCommonInterface {
+    using ConnectedDevices = std::vector<::aidl::android::media::audio::common::AudioDevice>;
+    using Metadata =
+            std::variant<::aidl::android::hardware::audio::common::SinkMetadata /*IStreamIn*/,
+                         ::aidl::android::hardware::audio::common::SourceMetadata /*IStreamOut*/>;
+
+    static constexpr bool isInput(const Metadata& metadata) { return metadata.index() == 0; }
+
     virtual ~StreamCommonInterface() = default;
+    // Methods below originate from the 'IStreamCommon' interface.
+    // This is semantically equivalent to inheriting from 'IStreamCommon' with a benefit
+    // that concrete stream implementations can inherit both from this interface and IStreamIn/Out.
     virtual ndk::ScopedAStatus close() = 0;
     virtual ndk::ScopedAStatus prepareToClose() = 0;
     virtual ndk::ScopedAStatus updateHwAvSyncId(int32_t in_hwAvSyncId) = 0;
@@ -305,11 +321,30 @@
     virtual ndk::ScopedAStatus removeEffect(
             const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>&
                     in_effect) = 0;
+    // Methods below are common for both 'IStreamIn' and 'IStreamOut'. Note that
+    // 'updateMetadata' in them uses an individual structure which is wrapped here.
+    // The 'Common' suffix is added to distinguish them from the methods from 'IStreamIn/Out'.
+    virtual ndk::ScopedAStatus getStreamCommonCommon(
+            std::shared_ptr<IStreamCommon>* _aidl_return) = 0;
+    virtual ndk::ScopedAStatus updateMetadataCommon(const Metadata& metadata) = 0;
+    // Methods below are called by implementation of 'IModule', 'IStreamIn' and 'IStreamOut'.
+    virtual ndk::ScopedAStatus initInstance(
+            const std::shared_ptr<StreamCommonInterface>& delegate) = 0;
+    virtual const StreamContext& getContext() const = 0;
+    virtual bool isClosed() const = 0;
+    virtual const ConnectedDevices& getConnectedDevices() const = 0;
+    virtual ndk::ScopedAStatus setConnectedDevices(
+            const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices) = 0;
 };
 
-class StreamCommon : public BnStreamCommon {
+// This is equivalent to automatically generated 'IStreamCommonDelegator' but uses
+// a weak pointer to avoid creating a reference loop. The loop will occur because
+// 'IStreamIn/Out.getStreamCommon' must return the same instance every time, thus
+// the stream implementation must hold a strong pointer to an instance of 'IStreamCommon'.
+// Also, we use 'StreamCommonInterface' here instead of 'IStreamCommon'.
+class StreamCommonDelegator : public BnStreamCommon {
   public:
-    explicit StreamCommon(const std::shared_ptr<StreamCommonInterface>& delegate)
+    explicit StreamCommonDelegator(const std::shared_ptr<StreamCommonInterface>& delegate)
         : mDelegate(delegate) {}
 
   private:
@@ -360,9 +395,20 @@
     std::weak_ptr<StreamCommonInterface> mDelegate;
 };
 
-template <class Metadata>
-class StreamCommonImpl : public StreamCommonInterface {
+// The implementation of DriverInterface must be provided by each concrete stream implementation.
+class StreamCommonImpl : virtual public StreamCommonInterface, virtual public DriverInterface {
   public:
+    StreamCommonImpl(const Metadata& metadata, StreamContext&& context,
+                     const StreamWorkerInterface::CreateInstance& createWorker)
+        : mMetadata(metadata),
+          mContext(std::move(context)),
+          mWorker(createWorker(mContext, this)) {}
+    StreamCommonImpl(const Metadata& metadata, StreamContext&& context)
+        : StreamCommonImpl(
+                  metadata, std::move(context),
+                  isInput(metadata) ? getDefaultInWorkerCreator() : getDefaultOutWorkerCreator()) {}
+    ~StreamCommonImpl();
+
     ndk::ScopedAStatus close() override;
     ndk::ScopedAStatus prepareToClose() override;
     ndk::ScopedAStatus updateHwAvSyncId(int32_t in_hwAvSyncId) override;
@@ -377,46 +423,50 @@
             const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>& in_effect)
             override;
 
-    ndk::ScopedAStatus getStreamCommon(std::shared_ptr<IStreamCommon>* _aidl_return);
-    ndk::ScopedAStatus init() {
-        return mWorker->start() ? ndk::ScopedAStatus::ok()
-                                : ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
-    }
-    bool isClosed() const { return mWorker->isClosed(); }
-    void setIsConnected(
-            const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices) {
-        mWorker->setIsConnected(!devices.empty());
-        mConnectedDevices = devices;
-        mDriver->setConnectedDevices(devices);
-    }
-    ndk::ScopedAStatus updateMetadata(const Metadata& metadata);
+    ndk::ScopedAStatus getStreamCommonCommon(std::shared_ptr<IStreamCommon>* _aidl_return) override;
+    ndk::ScopedAStatus updateMetadataCommon(const Metadata& metadata) override;
+
+    ndk::ScopedAStatus initInstance(
+            const std::shared_ptr<StreamCommonInterface>& delegate) override;
+    const StreamContext& getContext() const override { return mContext; }
+    bool isClosed() const override { return mWorker->isClosed(); }
+    const ConnectedDevices& getConnectedDevices() const override { return mConnectedDevices; }
+    ndk::ScopedAStatus setConnectedDevices(
+            const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices)
+            override;
 
   protected:
-    StreamCommonImpl(const Metadata& metadata, StreamContext&& context,
-                     const DriverInterface::CreateInstance& createDriver,
-                     const StreamWorkerInterface::CreateInstance& createWorker)
-        : mMetadata(metadata),
-          mContext(std::move(context)),
-          mDriver(createDriver(mContext)),
-          mWorker(createWorker(mContext, mDriver.get())) {}
-    ~StreamCommonImpl();
-    void stopWorker();
-    void createStreamCommon(const std::shared_ptr<StreamCommonInterface>& delegate);
+    static StreamWorkerInterface::CreateInstance getDefaultInWorkerCreator() {
+        return [](const StreamContext& ctx, DriverInterface* driver) -> StreamWorkerInterface* {
+            return new StreamInWorker(ctx, driver);
+        };
+    }
+    static StreamWorkerInterface::CreateInstance getDefaultOutWorkerCreator() {
+        return [](const StreamContext& ctx, DriverInterface* driver) -> StreamWorkerInterface* {
+            return new StreamOutWorker(ctx, driver);
+        };
+    }
 
-    std::shared_ptr<StreamCommon> mCommon;
-    ndk::SpAIBinder mCommonBinder;
+    void stopWorker();
+
     Metadata mMetadata;
     StreamContext mContext;
-    std::unique_ptr<DriverInterface> mDriver;
     std::unique_ptr<StreamWorkerInterface> mWorker;
-    std::vector<::aidl::android::media::audio::common::AudioDevice> mConnectedDevices;
+    std::shared_ptr<StreamCommonDelegator> mCommon;
+    ndk::SpAIBinder mCommonBinder;
+    ConnectedDevices mConnectedDevices;
 };
 
-class StreamIn : public StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata>,
-                 public BnStreamIn {
+// Note: 'StreamIn/Out' can not be used on their own. Instead, they must be used for defining
+// concrete input/output stream implementations.
+class StreamIn : virtual public StreamCommonInterface, public BnStreamIn {
+  protected:
     ndk::ScopedAStatus getStreamCommon(std::shared_ptr<IStreamCommon>* _aidl_return) override {
-        return StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata>::
-                getStreamCommon(_aidl_return);
+        return getStreamCommonCommon(_aidl_return);
+    }
+    ndk::ScopedAStatus updateMetadata(const ::aidl::android::hardware::audio::common::SinkMetadata&
+                                              in_sinkMetadata) override {
+        return updateMetadataCommon(in_sinkMetadata);
     }
     ndk::ScopedAStatus getActiveMicrophones(
             std::vector<::aidl::android::media::audio::common::MicrophoneDynamicInfo>* _aidl_return)
@@ -425,49 +475,26 @@
     ndk::ScopedAStatus setMicrophoneDirection(MicrophoneDirection in_direction) override;
     ndk::ScopedAStatus getMicrophoneFieldDimension(float* _aidl_return) override;
     ndk::ScopedAStatus setMicrophoneFieldDimension(float in_zoom) override;
-    ndk::ScopedAStatus updateMetadata(const ::aidl::android::hardware::audio::common::SinkMetadata&
-                                              in_sinkMetadata) override {
-        return StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata>::
-                updateMetadata(in_sinkMetadata);
-    }
     ndk::ScopedAStatus getHwGain(std::vector<float>* _aidl_return) override;
     ndk::ScopedAStatus setHwGain(const std::vector<float>& in_channelGains) override;
 
-  protected:
     friend class ndk::SharedRefBase;
 
-    static ndk::ScopedAStatus initInstance(const std::shared_ptr<StreamIn>& stream);
-
-    StreamIn(const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
-             StreamContext&& context, const DriverInterface::CreateInstance& createDriver,
-             const StreamWorkerInterface::CreateInstance& createWorker,
-             const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones);
-    void createStreamCommon(const std::shared_ptr<StreamIn>& myPtr) {
-        StreamCommonImpl<
-                ::aidl::android::hardware::audio::common::SinkMetadata>::createStreamCommon(myPtr);
-    }
+    explicit StreamIn(
+            const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones);
 
     const std::map<::aidl::android::media::audio::common::AudioDevice, std::string> mMicrophones;
-
-  public:
-    using CreateInstance = std::function<ndk::ScopedAStatus(
-            const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
-            StreamContext&& context,
-            const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones,
-            std::shared_ptr<StreamIn>* result)>;
 };
 
-class StreamOut : public StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata>,
-                  public BnStreamOut {
+class StreamOut : virtual public StreamCommonInterface, public BnStreamOut {
+  protected:
     ndk::ScopedAStatus getStreamCommon(std::shared_ptr<IStreamCommon>* _aidl_return) override {
-        return StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata>::
-                getStreamCommon(_aidl_return);
+        return getStreamCommonCommon(_aidl_return);
     }
     ndk::ScopedAStatus updateMetadata(
             const ::aidl::android::hardware::audio::common::SourceMetadata& in_sourceMetadata)
             override {
-        return StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata>::
-                updateMetadata(in_sourceMetadata);
+        return updateMetadataCommon(in_sourceMetadata);
     }
     ndk::ScopedAStatus updateOffloadMetadata(
             const ::aidl::android::hardware::audio::common::AudioOffloadMetadata&
@@ -492,34 +519,27 @@
             override;
     ndk::ScopedAStatus selectPresentation(int32_t in_presentationId, int32_t in_programId) override;
 
-    void createStreamCommon(const std::shared_ptr<StreamOut>& myPtr) {
-        StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata>::
-                createStreamCommon(myPtr);
-    }
-
-  protected:
     friend class ndk::SharedRefBase;
 
-    static ndk::ScopedAStatus initInstance(const std::shared_ptr<StreamOut>& stream);
-
-    StreamOut(const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
-              StreamContext&& context, const DriverInterface::CreateInstance& createDriver,
-              const StreamWorkerInterface::CreateInstance& createWorker,
-              const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
-                      offloadInfo);
+    explicit StreamOut(const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
+                               offloadInfo);
 
     std::optional<::aidl::android::media::audio::common::AudioOffloadInfo> mOffloadInfo;
     std::optional<::aidl::android::hardware::audio::common::AudioOffloadMetadata> mOffloadMetadata;
-
-  public:
-    using CreateInstance = std::function<ndk::ScopedAStatus(
-            const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
-            StreamContext&& context,
-            const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
-                    offloadInfo,
-            std::shared_ptr<StreamOut>* result)>;
 };
 
+// The recommended way to create a stream instance.
+// 'StreamImpl' is the concrete stream implementation, 'StreamInOrOut' is either 'StreamIn' or
+// 'StreamOut', the rest are the arguments forwarded to the constructor of 'StreamImpl'.
+template <class StreamImpl, class StreamInOrOut, class... Args>
+ndk::ScopedAStatus createStreamInstance(std::shared_ptr<StreamInOrOut>* result, Args&&... args) {
+    std::shared_ptr<StreamInOrOut> stream =
+            ::ndk::SharedRefBase::make<StreamImpl>(std::forward<Args>(args)...);
+    RETURN_STATUS_IF_ERROR(stream->initInstance(stream));
+    *result = std::move(stream);
+    return ndk::ScopedAStatus::ok();
+}
+
 class StreamWrapper {
   public:
     explicit StreamWrapper(const std::shared_ptr<StreamIn>& streamIn)
@@ -528,25 +548,18 @@
         : mStream(streamOut), mStreamBinder(streamOut->asBinder()) {}
     ndk::SpAIBinder getBinder() const { return mStreamBinder; }
     bool isStreamOpen() const {
-        return std::visit(
-                [](auto&& ws) -> bool {
-                    auto s = ws.lock();
-                    return s && !s->isClosed();
-                },
-                mStream);
+        auto s = mStream.lock();
+        return s && !s->isClosed();
     }
-    void setStreamIsConnected(
+    ndk::ScopedAStatus setConnectedDevices(
             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices) {
-        std::visit(
-                [&](auto&& ws) {
-                    auto s = ws.lock();
-                    if (s) s->setIsConnected(devices);
-                },
-                mStream);
+        auto s = mStream.lock();
+        if (s) return s->setConnectedDevices(devices);
+        return ndk::ScopedAStatus::ok();
     }
 
   private:
-    std::variant<std::weak_ptr<StreamIn>, std::weak_ptr<StreamOut>> mStream;
+    std::weak_ptr<StreamCommonInterface> mStream;
     ndk::SpAIBinder mStreamBinder;
 };
 
@@ -564,12 +577,13 @@
         mStreams.insert(std::pair{portConfigId, sw});
         mStreams.insert(std::pair{portId, std::move(sw)});
     }
-    void setStreamIsConnected(
+    ndk::ScopedAStatus setStreamConnectedDevices(
             int32_t portConfigId,
             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices) {
         if (auto it = mStreams.find(portConfigId); it != mStreams.end()) {
-            it->second.setStreamIsConnected(devices);
+            return it->second.setConnectedDevices(devices);
         }
+        return ndk::ScopedAStatus::ok();
     }
 
   private:
diff --git a/audio/aidl/default/include/core-impl/StreamStub.h b/audio/aidl/default/include/core-impl/StreamStub.h
index 436e610..c8900f3 100644
--- a/audio/aidl/default/include/core-impl/StreamStub.h
+++ b/audio/aidl/default/include/core-impl/StreamStub.h
@@ -20,9 +20,10 @@
 
 namespace aidl::android::hardware::audio::core {
 
-class DriverStub : public DriverInterface {
+class StreamStub : public StreamCommonImpl {
   public:
-    DriverStub(const StreamContext& context, bool isInput);
+    StreamStub(const Metadata& metadata, StreamContext&& context);
+    // Methods of 'DriverInterface'.
     ::android::status_t init() override;
     ::android::status_t drain(StreamDescriptor::DrainMode) override;
     ::android::status_t flush() override;
@@ -30,10 +31,7 @@
     ::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
                                  int32_t* latencyMs) override;
     ::android::status_t standby() override;
-    // Note: called on a different thread.
-    ::android::status_t setConnectedDevices(
-            const std::vector<::aidl::android::media::audio::common::AudioDevice>& connectedDevices)
-            override;
+    void shutdown() override;
 
   private:
     const size_t mFrameSizeBytes;
@@ -42,15 +40,8 @@
     const bool mIsInput;
 };
 
-class StreamInStub final : public StreamIn {
+class StreamInStub final : public StreamStub, public StreamIn {
   public:
-    static ndk::ScopedAStatus createInstance(
-            const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
-            StreamContext&& context,
-            const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones,
-            std::shared_ptr<StreamIn>* result);
-
-  private:
     friend class ndk::SharedRefBase;
     StreamInStub(
             const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
@@ -58,16 +49,8 @@
             const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones);
 };
 
-class StreamOutStub final : public StreamOut {
+class StreamOutStub final : public StreamStub, public StreamOut {
   public:
-    static ndk::ScopedAStatus createInstance(
-            const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
-            StreamContext&& context,
-            const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
-                    offloadInfo,
-            std::shared_ptr<StreamOut>* result);
-
-  private:
     friend class ndk::SharedRefBase;
     StreamOutStub(const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
                   StreamContext&& context,
diff --git a/audio/aidl/default/include/core-impl/StreamUsb.h b/audio/aidl/default/include/core-impl/StreamUsb.h
index 05d889a..5e55cd8 100644
--- a/audio/aidl/default/include/core-impl/StreamUsb.h
+++ b/audio/aidl/default/include/core-impl/StreamUsb.h
@@ -30,9 +30,10 @@
 
 namespace aidl::android::hardware::audio::core {
 
-class DriverUsb : public DriverInterface {
+class StreamUsb : public StreamCommonImpl {
   public:
-    DriverUsb(const StreamContext& context, bool isInput);
+    StreamUsb(const Metadata& metadata, StreamContext&& context);
+    // Methods of 'DriverInterface'.
     ::android::status_t init() override;
     ::android::status_t drain(StreamDescriptor::DrainMode) override;
     ::android::status_t flush() override;
@@ -40,62 +41,47 @@
     ::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
                                  int32_t* latencyMs) override;
     ::android::status_t standby() override;
-    // Note: called on a different thread.
-    ::android::status_t setConnectedDevices(
-            const std::vector<::aidl::android::media::audio::common::AudioDevice>& connectedDevices)
-            override;
+    void shutdown() override;
+
+    // Overridden methods of 'StreamCommonImpl', called on a Binder thread.
+    const ConnectedDevices& getConnectedDevices() const override;
+    ndk::ScopedAStatus setConnectedDevices(const ConnectedDevices& devices) override;
 
   private:
     ::android::status_t exitStandby();
 
-    std::mutex mLock;
+    mutable std::mutex mLock;
 
     const size_t mFrameSizeBytes;
     std::optional<struct pcm_config> mConfig;
     const bool mIsInput;
-    // Cached device addresses for connected devices.
-    std::vector<::aidl::android::media::audio::common::AudioDeviceAddress> mConnectedDevices
-            GUARDED_BY(mLock);
     std::vector<std::shared_ptr<alsa_device_proxy>> mAlsaDeviceProxies GUARDED_BY(mLock);
     bool mIsStandby = true;
 };
 
-class StreamInUsb final : public StreamIn {
-    ndk::ScopedAStatus getActiveMicrophones(
-            std::vector<::aidl::android::media::audio::common::MicrophoneDynamicInfo>* _aidl_return)
-            override;
-
+class StreamInUsb final : public StreamUsb, public StreamIn {
   public:
-    static ndk::ScopedAStatus createInstance(
-            const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
-            StreamContext&& context,
-            const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones,
-            std::shared_ptr<StreamIn>* result);
-
-  private:
     friend class ndk::SharedRefBase;
     StreamInUsb(
             const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
             StreamContext&& context,
             const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones);
-};
-
-class StreamOutUsb final : public StreamOut {
-  public:
-    static ndk::ScopedAStatus createInstance(
-            const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
-            StreamContext&& context,
-            const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
-                    offloadInfo,
-            std::shared_ptr<StreamOut>* result);
 
   private:
+    ndk::ScopedAStatus getActiveMicrophones(
+            std::vector<::aidl::android::media::audio::common::MicrophoneDynamicInfo>* _aidl_return)
+            override;
+};
+
+class StreamOutUsb final : public StreamUsb, public StreamOut {
+  public:
     friend class ndk::SharedRefBase;
     StreamOutUsb(const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
                  StreamContext&& context,
                  const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
                          offloadInfo);
 
+  private:
     ndk::ScopedAStatus getHwVolume(std::vector<float>* _aidl_return) override;
     ndk::ScopedAStatus setHwVolume(const std::vector<float>& in_channelVolumes) override;
 
diff --git a/audio/aidl/default/usb/ModuleUsb.cpp b/audio/aidl/default/usb/ModuleUsb.cpp
index 28116ae..5c9d477 100644
--- a/audio/aidl/default/usb/ModuleUsb.cpp
+++ b/audio/aidl/default/usb/ModuleUsb.cpp
@@ -25,11 +25,14 @@
 #include "UsbAlsaMixerControl.h"
 #include "UsbAlsaUtils.h"
 #include "core-impl/ModuleUsb.h"
+#include "core-impl/StreamUsb.h"
 
 extern "C" {
 #include "alsa_device_profile.h"
 }
 
+using aidl::android::hardware::audio::common::SinkMetadata;
+using aidl::android::hardware::audio::common::SourceMetadata;
 using aidl::android::media::audio::common::AudioChannelLayout;
 using aidl::android::media::audio::common::AudioDeviceAddress;
 using aidl::android::media::audio::common::AudioDeviceDescription;
@@ -37,10 +40,12 @@
 using aidl::android::media::audio::common::AudioFormatDescription;
 using aidl::android::media::audio::common::AudioFormatType;
 using aidl::android::media::audio::common::AudioIoFlags;
+using aidl::android::media::audio::common::AudioOffloadInfo;
 using aidl::android::media::audio::common::AudioPort;
 using aidl::android::media::audio::common::AudioPortConfig;
 using aidl::android::media::audio::common::AudioPortExt;
 using aidl::android::media::audio::common::AudioProfile;
+using aidl::android::media::audio::common::MicrophoneInfo;
 
 namespace aidl::android::hardware::audio::core {
 
@@ -97,6 +102,25 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
+ndk::ScopedAStatus ModuleUsb::createInputStream(const SinkMetadata& sinkMetadata,
+                                                StreamContext&& context,
+                                                const std::vector<MicrophoneInfo>& microphones,
+                                                std::shared_ptr<StreamIn>* result) {
+    return createStreamInstance<StreamInUsb>(result, sinkMetadata, std::move(context), microphones);
+}
+
+ndk::ScopedAStatus ModuleUsb::createOutputStream(const SourceMetadata& sourceMetadata,
+                                                 StreamContext&& context,
+                                                 const std::optional<AudioOffloadInfo>& offloadInfo,
+                                                 std::shared_ptr<StreamOut>* result) {
+    if (offloadInfo.has_value()) {
+        LOG(ERROR) << __func__ << ": offload is not supported";
+        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+    return createStreamInstance<StreamOutUsb>(result, sourceMetadata, std::move(context),
+                                              offloadInfo);
+}
+
 ndk::ScopedAStatus ModuleUsb::populateConnectedDevicePort(AudioPort* audioPort) {
     if (audioPort->ext.getTag() != AudioPortExt::Tag::device) {
         LOG(ERROR) << __func__ << ": port id " << audioPort->id << " is not a device port";
@@ -175,8 +199,8 @@
         return;
     }
     const int card = address.get<AudioDeviceAddress::alsa>()[0];
-    usb::UsbAlsaMixerControl::getInstance().setDeviceConnectionState(card, mMasterMute,
-                                                                     mMasterVolume, connected);
+    usb::UsbAlsaMixerControl::getInstance().setDeviceConnectionState(card, getMasterMute(),
+                                                                     getMasterVolume(), connected);
 }
 
 ndk::ScopedAStatus ModuleUsb::onMasterMuteChanged(bool mute) {
diff --git a/audio/aidl/default/usb/StreamUsb.cpp b/audio/aidl/default/usb/StreamUsb.cpp
index 9ac1cc9..49bc1d6 100644
--- a/audio/aidl/default/usb/StreamUsb.cpp
+++ b/audio/aidl/default/usb/StreamUsb.cpp
@@ -18,6 +18,7 @@
 #include <android-base/logging.h>
 
 #include <Utils.h>
+#include <error/expected_utils.h>
 
 #include "UsbAlsaMixerControl.h"
 #include "UsbAlsaUtils.h"
@@ -42,10 +43,12 @@
 
 namespace aidl::android::hardware::audio::core {
 
-DriverUsb::DriverUsb(const StreamContext& context, bool isInput)
-    : mFrameSizeBytes(context.getFrameSize()), mIsInput(isInput) {
+StreamUsb::StreamUsb(const Metadata& metadata, StreamContext&& context)
+    : StreamCommonImpl(metadata, std::move(context)),
+      mFrameSizeBytes(context.getFrameSize()),
+      mIsInput(isInput(metadata)) {
     struct pcm_config config;
-    config.channels = usb::getChannelCountFromChannelMask(context.getChannelLayout(), isInput);
+    config.channels = usb::getChannelCountFromChannelMask(context.getChannelLayout(), mIsInput);
     if (config.channels == 0) {
         LOG(ERROR) << __func__ << ": invalid channel=" << context.getChannelLayout().toString();
         return;
@@ -63,48 +66,50 @@
     mConfig = config;
 }
 
-::android::status_t DriverUsb::init() {
+::android::status_t StreamUsb::init() {
     return mConfig.has_value() ? ::android::OK : ::android::NO_INIT;
 }
 
-::android::status_t DriverUsb::setConnectedDevices(
+const StreamCommonInterface::ConnectedDevices& StreamUsb::getConnectedDevices() const {
+    std::lock_guard guard(mLock);
+    return mConnectedDevices;
+}
+
+ndk::ScopedAStatus StreamUsb::setConnectedDevices(
         const std::vector<AudioDevice>& connectedDevices) {
     if (mIsInput && connectedDevices.size() > 1) {
         LOG(ERROR) << __func__ << ": wrong device size(" << connectedDevices.size()
                    << ") for input stream";
-        return ::android::BAD_VALUE;
+        return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
     }
     for (const auto& connectedDevice : connectedDevices) {
         if (connectedDevice.address.getTag() != AudioDeviceAddress::alsa) {
             LOG(ERROR) << __func__ << ": bad device address" << connectedDevice.address.toString();
-            return ::android::BAD_VALUE;
+            return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
         }
     }
     std::lock_guard guard(mLock);
     mAlsaDeviceProxies.clear();
-    mConnectedDevices.clear();
-    for (const auto& connectedDevice : connectedDevices) {
-        mConnectedDevices.push_back(connectedDevice.address);
-    }
-    return ::android::OK;
+    RETURN_STATUS_IF_ERROR(StreamCommonImpl::setConnectedDevices(connectedDevices));
+    return ndk::ScopedAStatus::ok();
 }
 
-::android::status_t DriverUsb::drain(StreamDescriptor::DrainMode) {
+::android::status_t StreamUsb::drain(StreamDescriptor::DrainMode) {
     usleep(1000);
     return ::android::OK;
 }
 
-::android::status_t DriverUsb::flush() {
+::android::status_t StreamUsb::flush() {
     usleep(1000);
     return ::android::OK;
 }
 
-::android::status_t DriverUsb::pause() {
+::android::status_t StreamUsb::pause() {
     usleep(1000);
     return ::android::OK;
 }
 
-::android::status_t DriverUsb::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
+::android::status_t StreamUsb::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
                                         int32_t* latencyMs) {
     {
         std::lock_guard guard(mLock);
@@ -139,7 +144,7 @@
     return ::android::OK;
 }
 
-::android::status_t DriverUsb::standby() {
+::android::status_t StreamUsb::standby() {
     if (!mIsStandby) {
         std::lock_guard guard(mLock);
         mAlsaDeviceProxies.clear();
@@ -148,11 +153,15 @@
     return ::android::OK;
 }
 
-::android::status_t DriverUsb::exitStandby() {
+void StreamUsb::shutdown() {}
+
+::android::status_t StreamUsb::exitStandby() {
     std::vector<AudioDeviceAddress> connectedDevices;
     {
         std::lock_guard guard(mLock);
-        connectedDevices = mConnectedDevices;
+        std::transform(mConnectedDevices.begin(), mConnectedDevices.end(),
+                       std::back_inserter(connectedDevices),
+                       [](const auto& device) { return device.address; });
     }
     std::vector<std::shared_ptr<alsa_device_proxy>> alsaDeviceProxies;
     for (const auto& device : connectedDevices) {
@@ -196,32 +205,9 @@
     return ::android::OK;
 }
 
-// static
-ndk::ScopedAStatus StreamInUsb::createInstance(const SinkMetadata& sinkMetadata,
-                                               StreamContext&& context,
-                                               const std::vector<MicrophoneInfo>& microphones,
-                                               std::shared_ptr<StreamIn>* result) {
-    std::shared_ptr<StreamIn> stream =
-            ndk::SharedRefBase::make<StreamInUsb>(sinkMetadata, std::move(context), microphones);
-    if (auto status = initInstance(stream); !status.isOk()) {
-        return status;
-    }
-    *result = std::move(stream);
-    return ndk::ScopedAStatus::ok();
-}
-
 StreamInUsb::StreamInUsb(const SinkMetadata& sinkMetadata, StreamContext&& context,
                          const std::vector<MicrophoneInfo>& microphones)
-    : StreamIn(
-              sinkMetadata, std::move(context),
-              [](const StreamContext& ctx) -> DriverInterface* {
-                  return new DriverUsb(ctx, true /*isInput*/);
-              },
-              [](const StreamContext& ctx, DriverInterface* driver) -> StreamWorkerInterface* {
-                  // The default worker implementation is used.
-                  return new StreamInWorker(ctx, driver);
-              },
-              microphones) {}
+    : StreamUsb(sinkMetadata, std::move(context)), StreamIn(microphones) {}
 
 ndk::ScopedAStatus StreamInUsb::getActiveMicrophones(
         std::vector<MicrophoneDynamicInfo>* _aidl_return __unused) {
@@ -229,37 +215,10 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-// static
-ndk::ScopedAStatus StreamOutUsb::createInstance(const SourceMetadata& sourceMetadata,
-                                                StreamContext&& context,
-                                                const std::optional<AudioOffloadInfo>& offloadInfo,
-                                                std::shared_ptr<StreamOut>* result) {
-    if (offloadInfo.has_value()) {
-        LOG(ERROR) << __func__ << ": offload is not supported";
-        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
-    }
-    std::shared_ptr<StreamOut> stream =
-            ndk::SharedRefBase::make<StreamOutUsb>(sourceMetadata, std::move(context), offloadInfo);
-    if (auto status = initInstance(stream); !status.isOk()) {
-        return status;
-    }
-    *result = std::move(stream);
-    return ndk::ScopedAStatus::ok();
-}
-
 StreamOutUsb::StreamOutUsb(const SourceMetadata& sourceMetadata, StreamContext&& context,
                            const std::optional<AudioOffloadInfo>& offloadInfo)
-    : StreamOut(
-              sourceMetadata, std::move(context),
-              [](const StreamContext& ctx) -> DriverInterface* {
-                  return new DriverUsb(ctx, false /*isInput*/);
-              },
-              [](const StreamContext& ctx, DriverInterface* driver) -> StreamWorkerInterface* {
-                  // The default worker implementation is used.
-                  return new StreamOutWorker(ctx, driver);
-              },
-              offloadInfo) {
-    mChannelCount = getChannelCount(mContext.getChannelLayout());
+    : StreamUsb(sourceMetadata, std::move(context)), StreamOut(offloadInfo) {
+    mChannelCount = getChannelCount(getContext().getChannelLayout());
 }
 
 ndk::ScopedAStatus StreamOutUsb::getHwVolume(std::vector<float>* _aidl_return) {
@@ -268,7 +227,7 @@
 }
 
 ndk::ScopedAStatus StreamOutUsb::setHwVolume(const std::vector<float>& in_channelVolumes) {
-    for (const auto& device : mConnectedDevices) {
+    for (const auto& device : getConnectedDevices()) {
         if (device.address.getTag() != AudioDeviceAddress::alsa) {
             LOG(DEBUG) << __func__ << ": skip as the device address is not alsa";
             continue;
diff --git a/audio/aidl/vts/EffectHelper.h b/audio/aidl/vts/EffectHelper.h
index a1353f5..685d07d 100644
--- a/audio/aidl/vts/EffectHelper.h
+++ b/audio/aidl/vts/EffectHelper.h
@@ -30,16 +30,15 @@
 #include <android/binder_auto_utils.h>
 #include <fmq/AidlMessageQueue.h>
 #include <gtest/gtest.h>
+#include <system/audio_aidl_utils.h>
 #include <system/audio_effects/aidl_effects_utils.h>
 #include <system/audio_effects/effect_uuid.h>
-#include <system/audio_aidl_utils.h>
 
 #include "AudioHalBinderServiceUtil.h"
 #include "EffectFactoryHelper.h"
 #include "TestUtils.h"
 
 using namespace android;
-using ::android::audio::utils::toString;
 using aidl::android::hardware::audio::effect::CommandId;
 using aidl::android::hardware::audio::effect::Descriptor;
 using aidl::android::hardware::audio::effect::IEffect;
@@ -53,6 +52,7 @@
 using aidl::android::media::audio::common::AudioFormatType;
 using aidl::android::media::audio::common::AudioUuid;
 using aidl::android::media::audio::common::PcmType;
+using ::android::audio::utils::toString;
 using ::android::hardware::EventFlag;
 
 const AudioFormatDescription kDefaultFormatDescription = {
@@ -65,10 +65,9 @@
                                     ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>
         DataMQ;
 
-static inline std::string getPrefix(Descriptor &descriptor) {
+static inline std::string getPrefix(Descriptor& descriptor) {
     std::string prefix = "Implementor_" + descriptor.common.implementor + "_name_" +
-                               descriptor.common.name + "_UUID_" +
-                               toString(descriptor.common.id.uuid);
+                         descriptor.common.name + "_UUID_" + toString(descriptor.common.id.uuid);
     return prefix;
 }
 
diff --git a/audio/aidl/vts/VtsHalAECTargetTest.cpp b/audio/aidl/vts/VtsHalAECTargetTest.cpp
index 4f658f2..1a7c3d4 100644
--- a/audio/aidl/vts/VtsHalAECTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAECTargetTest.cpp
@@ -162,8 +162,8 @@
             auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
             std::string echoDelay = std::to_string(std::get<PARAM_ECHO_DELAY>(info.param));
             std::string mobileMode = std::get<PARAM_MOBILE_MODE>(info.param) ? "true" : "false";
-            std::string name = getPrefix(descriptor) + "_EchoDelay_" + echoDelay +
-                               "_MobileMode_" + mobileMode;
+            std::string name =
+                    getPrefix(descriptor) + "_EchoDelay_" + echoDelay + "_MobileMode_" + mobileMode;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalAGC1TargetTest.cpp b/audio/aidl/vts/VtsHalAGC1TargetTest.cpp
index cc00763..65c6a8f 100644
--- a/audio/aidl/vts/VtsHalAGC1TargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAGC1TargetTest.cpp
@@ -177,9 +177,9 @@
                     std::to_string(std::get<PARAM_MAX_COMPRESSION_GAIN>(info.param));
             std::string enableLimiter = std::to_string(std::get<PARAM_ENABLE_LIMITER>(info.param));
 
-            std::string name = getPrefix(descriptor) + "_target_peak_level_" +
-                               targetPeakLevel + "_max_compression_gain_" + maxCompressionGain +
-                               "_enable_limiter_" + enableLimiter;
+            std::string name = getPrefix(descriptor) + "_target_peak_level_" + targetPeakLevel +
+                               "_max_compression_gain_" + maxCompressionGain + "_enable_limiter_" +
+                               enableLimiter;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp b/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp
index 0ae8cfc..a2e2ef7 100644
--- a/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp
@@ -2763,6 +2763,7 @@
             ASSERT_NO_FATAL_FAILURE(patch.SetUp(module.get()));
             std::vector<MicrophoneDynamicInfo> activeMics;
             EXPECT_IS_OK(stream.get()->getActiveMicrophones(&activeMics));
+            EXPECT_FALSE(activeMics.empty());
             for (const auto& mic : activeMics) {
                 EXPECT_NE(micInfos.end(),
                           std::find_if(micInfos.begin(), micInfos.end(),
diff --git a/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp b/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp
index d417e86..54caed9 100644
--- a/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp
@@ -195,10 +195,10 @@
                     std::to_string(std::get<PARAM_VIBRATION_INFORMATION_Q_FACTOR>(info.param));
             std::string maxAmplitude =
                     std::to_string(std::get<PARAM_VIBRATION_INFORMATION_MAX_AMPLITUDE>(info.param));
-            std::string name = getPrefix(descriptor) + "_hapticScaleId" +
-                               hapticScaleID + "_hapticScaleVibScale" + hapticScaleVibScale +
-                               "_resonantFrequency" + resonantFrequency + "_qFactor" + qFactor +
-                               "_maxAmplitude" + maxAmplitude;
+            std::string name = getPrefix(descriptor) + "_hapticScaleId" + hapticScaleID +
+                               "_hapticScaleVibScale" + hapticScaleVibScale + "_resonantFrequency" +
+                               resonantFrequency + "_qFactor" + qFactor + "_maxAmplitude" +
+                               maxAmplitude;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalNSTargetTest.cpp b/audio/aidl/vts/VtsHalNSTargetTest.cpp
index 7c8b2e5..bbb11fc 100644
--- a/audio/aidl/vts/VtsHalNSTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalNSTargetTest.cpp
@@ -155,8 +155,7 @@
                     std::get<PARAM_LEVEL>(info.param));
             std::string type = aidl::android::hardware::audio::effect::toString(
                     std::get<PARAM_TYPE>(info.param));
-            std::string name = getPrefix(descriptor) + "_level_" + level + "_type_" +
-                               type;
+            std::string name = getPrefix(descriptor) + "_level_" + level + "_type_" + type;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalVolumeTargetTest.cpp b/audio/aidl/vts/VtsHalVolumeTargetTest.cpp
index 9193a36..0b5b9fc 100644
--- a/audio/aidl/vts/VtsHalVolumeTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalVolumeTargetTest.cpp
@@ -149,8 +149,7 @@
             auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
             std::string level = std::to_string(std::get<PARAM_LEVEL>(info.param));
             std::string mute = std::to_string(std::get<PARAM_MUTE>(info.param));
-            std::string name = getPrefix(descriptor) + "_level" + level + "_mute" +
-                               mute;
+            std::string name = getPrefix(descriptor) + "_level" + level + "_mute" + mute;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/automotive/vehicle/aidl/impl/default_config/include/DefaultConfig.h b/automotive/vehicle/aidl/impl/default_config/include/DefaultConfig.h
index 622846a..f023fd2 100644
--- a/automotive/vehicle/aidl/impl/default_config/include/DefaultConfig.h
+++ b/automotive/vehicle/aidl/impl/default_config/include/DefaultConfig.h
@@ -167,7 +167,15 @@
                          .maxSampleRate = 10.0f,
                  },
          .initialValue = {.floatValues = {0.0f}}},
-
+        {.config =
+                 {
+                         .prop = toInt(VehicleProperty::PERF_VEHICLE_SPEED_DISPLAY),
+                         .access = VehiclePropertyAccess::READ,
+                         .changeMode = VehiclePropertyChangeMode::CONTINUOUS,
+                         .minSampleRate = 1.0f,
+                         .maxSampleRate = 10.0f,
+                 },
+         .initialValue = {.floatValues = {0.0f}}},
         {.config =
                  {
                          .prop = toInt(VehicleProperty::VEHICLE_SPEED_DISPLAY_UNITS),
@@ -177,7 +185,7 @@
                                          toInt(VehicleUnit::MILES_PER_HOUR),
                                          toInt(VehicleUnit::KILOMETERS_PER_HOUR)},
                  },
-         .initialValue = {.int32Values = {toInt(VehicleUnit::KILOMETERS_PER_HOUR)}}},
+         .initialValue = {.int32Values = {toInt(VehicleUnit::MILES_PER_HOUR)}}},
 
         {.config =
                  {
@@ -1025,7 +1033,7 @@
                          .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
                          .configArray = {(int)VehicleUnit::LITER, (int)VehicleUnit::US_GALLON},
                  },
-         .initialValue = {.int32Values = {(int)VehicleUnit::LITER}}},
+         .initialValue = {.int32Values = {(int)VehicleUnit::US_GALLON}}},
 
         {.config =
                  {
diff --git a/bluetooth/aidl/default/BluetoothHci.cpp b/bluetooth/aidl/default/BluetoothHci.cpp
index 18a371d..782122f 100644
--- a/bluetooth/aidl/default/BluetoothHci.cpp
+++ b/bluetooth/aidl/default/BluetoothHci.cpp
@@ -224,6 +224,7 @@
     ALOGI("Unable to open Linux interface, trying default path.");
     mFd = getFdFromDevPath();
     if (mFd < 0) {
+      mState = HalState::READY;
       cb->initializationComplete(Status::UNABLE_TO_OPEN_INTERFACE);
       return ndk::ScopedAStatus::ok();
     }
@@ -281,6 +282,7 @@
   {
     std::lock_guard<std::mutex> guard(mStateMutex);
     if (mState != HalState::ONE_CLIENT) {
+      ASSERT(mState != HalState::INITIALIZING);
       ALOGI("Already closed");
       return ndk::ScopedAStatus::ok();
     }
diff --git a/camera/device/3.2/default/convert.cpp b/camera/device/3.2/default/convert.cpp
index 06ad7e9..2075607 100644
--- a/camera/device/3.2/default/convert.cpp
+++ b/camera/device/3.2/default/convert.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "android.hardware.camera.device@3.2-convert-impl"
 #include <log/log.h>
+#include <system/camera_metadata.h>
 
 #include "include/convert.h"
 
@@ -43,6 +44,13 @@
         ALOGE("%s: input CameraMetadata is corrupt!", __FUNCTION__);
         return false;
     }
+
+    if (validate_camera_metadata_structure((camera_metadata_t*)data, /*expected_size=*/NULL) !=
+        OK) {
+        ALOGE("%s: Failed to validate the metadata structure", __FUNCTION__);
+        return false;
+    }
+
     *dst = (camera_metadata_t*) data;
     return true;
 }
diff --git a/contexthub/aidl/Android.bp b/contexthub/aidl/Android.bp
index a865445..7a0a93b 100644
--- a/contexthub/aidl/Android.bp
+++ b/contexthub/aidl/Android.bp
@@ -34,6 +34,9 @@
         ndk: {
             apps_enabled: false,
         },
+        rust: {
+            enabled: true,
+        },
     },
     versions_with_info: [
         {
diff --git a/gnss/common/utils/default/DeviceFileReader.cpp b/gnss/common/utils/default/DeviceFileReader.cpp
index dfc086a..91e75eb 100644
--- a/gnss/common/utils/default/DeviceFileReader.cpp
+++ b/gnss/common/utils/default/DeviceFileReader.cpp
@@ -32,40 +32,52 @@
         return;
     }
 
-    int mGnssFd = open(deviceFilePath.c_str(), O_RDWR | O_NONBLOCK);
-
-    if (mGnssFd == -1) {
+    int gnss_fd, epoll_fd;
+    if ((gnss_fd = open(deviceFilePath.c_str(), O_RDWR | O_NONBLOCK)) == -1) {
+        return;
+    }
+    if (write(gnss_fd, command.c_str(), command.size()) <= 0) {
+        close(gnss_fd);
         return;
     }
 
-    int bytes_write = write(mGnssFd, command.c_str(), command.size());
-    if (bytes_write <= 0) {
-        close(mGnssFd);
+    // Create an epoll instance.
+    if ((epoll_fd = epoll_create1(EPOLL_CLOEXEC)) < 0) {
+        close(gnss_fd);
         return;
     }
 
+    // Add file descriptor to epoll instance.
     struct epoll_event ev, events[1];
-    ev.data.fd = mGnssFd;
+    memset(&ev, 0, sizeof(ev));
+    ev.data.fd = gnss_fd;
     ev.events = EPOLLIN;
-    int epoll_fd = epoll_create1(0);
-    epoll_ctl(epoll_fd, EPOLL_CTL_ADD, mGnssFd, &ev);
+    if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, gnss_fd, &ev) == -1) {
+        close(gnss_fd);
+        close(epoll_fd);
+        return;
+    }
+
+    // Wait for device file event.
+    if (epoll_wait(epoll_fd, events, 1, mMinIntervalMs) == -1) {
+        close(gnss_fd);
+        close(epoll_fd);
+        return;
+    }
+
+    // Handle event and write data to string buffer.
     int bytes_read = -1;
     std::string inputStr = "";
-    int epoll_ret = epoll_wait(epoll_fd, events, 1, mMinIntervalMs);
-
-    if (epoll_ret == -1) {
-        close(mGnssFd);
-        return;
-    }
     while (true) {
         memset(inputBuffer, 0, INPUT_BUFFER_SIZE);
-        bytes_read = read(mGnssFd, &inputBuffer, INPUT_BUFFER_SIZE);
+        bytes_read = read(gnss_fd, &inputBuffer, INPUT_BUFFER_SIZE);
         if (bytes_read <= 0) {
             break;
         }
         s_buffer_ += std::string(inputBuffer, bytes_read);
     }
-    close(mGnssFd);
+    close(gnss_fd);
+    close(epoll_fd);
 
     // Trim end of file mark(\n\n\n\n).
     auto pos = s_buffer_.find("\n\n\n\n");
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h
index ab67eb1..9ae6173 100644
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h
@@ -207,7 +207,7 @@
 
     bool executeSetClientTarget(uint16_t length) {
         // 4 parameters followed by N rectangles
-        if ((length - 4) % 4 != 0) {
+        if (!length || (length - 4) % 4 != 0) {
             return false;
         }
 
diff --git a/light/aidl/Android.bp b/light/aidl/Android.bp
index c11934f..c9fba95 100644
--- a/light/aidl/Android.bp
+++ b/light/aidl/Android.bp
@@ -18,6 +18,9 @@
         java: {
             sdk_version: "module_current",
         },
+        rust: {
+            enabled: true,
+        },
     },
     versions_with_info: [
         {
diff --git a/light/aidl/aidl_api/android.hardware.light/2/.hash b/light/aidl/aidl_api/android.hardware.light/2/.hash
index d27f4ad..2d4e7f0 100644
--- a/light/aidl/aidl_api/android.hardware.light/2/.hash
+++ b/light/aidl/aidl_api/android.hardware.light/2/.hash
@@ -1 +1,2 @@
 c8b1e8ebb88c57dcb2c350a8d9b722e77dd864c8
+c7d3d941d303c70d1c22759a0b09e41930c1cddb
diff --git a/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLight.aidl b/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLight.aidl
index 25a2dce..5ac2a34 100644
--- a/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLight.aidl
+++ b/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLight.aidl
@@ -32,7 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.light;
-@VintfStability
+@RustDerive(Clone=true, Copy=true) @VintfStability
 parcelable HwLight {
   int id;
   int ordinal;
diff --git a/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLightState.aidl b/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLightState.aidl
index 40e520b..2878ce2 100644
--- a/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLightState.aidl
+++ b/light/aidl/aidl_api/android.hardware.light/2/android/hardware/light/HwLightState.aidl
@@ -32,7 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.light;
-@VintfStability
+@RustDerive(Clone=true, Copy=true) @VintfStability
 parcelable HwLightState {
   int color;
   android.hardware.light.FlashMode flashMode;
diff --git a/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLight.aidl b/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLight.aidl
index 25a2dce..5ac2a34 100644
--- a/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLight.aidl
+++ b/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLight.aidl
@@ -32,7 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.light;
-@VintfStability
+@RustDerive(Clone=true, Copy=true) @VintfStability
 parcelable HwLight {
   int id;
   int ordinal;
diff --git a/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLightState.aidl b/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLightState.aidl
index 40e520b..2878ce2 100644
--- a/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLightState.aidl
+++ b/light/aidl/aidl_api/android.hardware.light/current/android/hardware/light/HwLightState.aidl
@@ -32,7 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.light;
-@VintfStability
+@RustDerive(Clone=true, Copy=true) @VintfStability
 parcelable HwLightState {
   int color;
   android.hardware.light.FlashMode flashMode;
diff --git a/light/aidl/android/hardware/light/HwLight.aidl b/light/aidl/android/hardware/light/HwLight.aidl
index 43fdb4b..8db32cc 100644
--- a/light/aidl/android/hardware/light/HwLight.aidl
+++ b/light/aidl/android/hardware/light/HwLight.aidl
@@ -22,7 +22,7 @@
  * A description of a single light. Multiple lights can map to the same physical
  * LED. Separate physical LEDs are always represented by separate instances.
  */
-@VintfStability
+@RustDerive(Clone=true, Copy=true) @VintfStability
 parcelable HwLight {
     /**
      * Integer ID used for controlling this light
diff --git a/light/aidl/android/hardware/light/HwLightState.aidl b/light/aidl/android/hardware/light/HwLightState.aidl
index 24d3250..3ba6c78 100644
--- a/light/aidl/android/hardware/light/HwLightState.aidl
+++ b/light/aidl/android/hardware/light/HwLightState.aidl
@@ -25,7 +25,7 @@
  * Not all lights must support all parameters. If you
  * can do something backward-compatible, do it.
  */
-@VintfStability
+@RustDerive(Clone=true, Copy=true) @VintfStability
 parcelable HwLightState {
     /**
      * The color of the LED in ARGB.
diff --git a/light/aidl/default/Android.bp b/light/aidl/default/Android.bp
index 7920503..285329e 100644
--- a/light/aidl/default/Android.bp
+++ b/light/aidl/default/Android.bp
@@ -7,19 +7,17 @@
     default_applicable_licenses: ["hardware_interfaces_license"],
 }
 
-cc_binary {
+rust_binary {
     name: "android.hardware.lights-service.example",
     relative_install_path: "hw",
     init_rc: ["lights-default.rc"],
     vintf_fragments: ["lights-default.xml"],
     vendor: true,
-    shared_libs: [
-        "libbase",
-        "libbinder_ndk",
-        "android.hardware.light-V2-ndk",
+    rustlibs: [
+        "liblogger",
+        "liblog_rust",
+        "libbinder_rs",
+        "android.hardware.light-V2-rust",
     ],
-    srcs: [
-        "Lights.cpp",
-        "main.cpp",
-    ],
+    srcs: [ "main.rs" ],
 }
diff --git a/light/aidl/default/Lights.cpp b/light/aidl/default/Lights.cpp
deleted file mode 100644
index 9bf3b20..0000000
--- a/light/aidl/default/Lights.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Lights.h"
-
-#include <android-base/logging.h>
-
-namespace aidl {
-namespace android {
-namespace hardware {
-namespace light {
-
-static constexpr int kNumDefaultLights = 3;
-
-ndk::ScopedAStatus Lights::setLightState(int id, const HwLightState& state) {
-    LOG(INFO) << "Lights setting state for id=" << id << " to color " << std::hex << state.color;
-    if (id <= 0 || id > kNumDefaultLights) {
-        return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
-    } else {
-        return ndk::ScopedAStatus::ok();
-    }
-}
-
-ndk::ScopedAStatus Lights::getLights(std::vector<HwLight>* lights) {
-    for (int i = 1; i <= kNumDefaultLights; i++) {
-        lights->push_back({i, i});
-    }
-    LOG(INFO) << "Lights reporting supported lights";
-    return ndk::ScopedAStatus::ok();
-}
-
-}  // namespace light
-}  // namespace hardware
-}  // namespace android
-}  // namespace aidl
diff --git a/light/aidl/default/Lights.h b/light/aidl/default/Lights.h
deleted file mode 100644
index cba147f..0000000
--- a/light/aidl/default/Lights.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <aidl/android/hardware/light/BnLights.h>
-
-namespace aidl {
-namespace android {
-namespace hardware {
-namespace light {
-
-// Default implementation that reports a few placeholder lights.
-class Lights : public BnLights {
-    ndk::ScopedAStatus setLightState(int id, const HwLightState& state) override;
-    ndk::ScopedAStatus getLights(std::vector<HwLight>* lights) override;
-};
-
-}  // namespace light
-}  // namespace hardware
-}  // namespace android
-}  // namespace aidl
diff --git a/light/aidl/default/lights.rs b/light/aidl/default/lights.rs
new file mode 100644
index 0000000..6c8aa3f
--- /dev/null
+++ b/light/aidl/default/lights.rs
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//! This module implements the ILights AIDL interface.
+
+use std::collections::HashMap;
+use std::sync::Mutex;
+
+use log::info;
+
+use android_hardware_light::aidl::android::hardware::light::{
+    HwLight::HwLight, HwLightState::HwLightState, ILights::ILights, LightType::LightType,
+};
+
+use binder::{ExceptionCode, Interface, Status};
+
+struct Light {
+    hw_light: HwLight,
+    state: HwLightState,
+}
+
+const NUM_DEFAULT_LIGHTS: i32 = 3;
+
+/// Defined so we can implement the ILights AIDL interface.
+pub struct LightsService {
+    lights: Mutex<HashMap<i32, Light>>,
+}
+
+impl Interface for LightsService {}
+
+impl LightsService {
+    fn new(hw_lights: impl IntoIterator<Item = HwLight>) -> Self {
+        let mut lights_map = HashMap::new();
+
+        for hw_light in hw_lights {
+            lights_map.insert(hw_light.id, Light { hw_light, state: Default::default() });
+        }
+
+        Self { lights: Mutex::new(lights_map) }
+    }
+}
+
+impl Default for LightsService {
+    fn default() -> Self {
+        let id_mapping_closure =
+            |light_id| HwLight { id: light_id, ordinal: light_id, r#type: LightType::BACKLIGHT };
+
+        Self::new((1..=NUM_DEFAULT_LIGHTS).map(id_mapping_closure))
+    }
+}
+
+impl ILights for LightsService {
+    fn setLightState(&self, id: i32, state: &HwLightState) -> binder::Result<()> {
+        info!("Lights setting state for id={} to color {:x}", id, state.color);
+
+        if let Some(light) = self.lights.lock().unwrap().get_mut(&id) {
+            light.state = *state;
+            Ok(())
+        } else {
+            Err(Status::new_exception(ExceptionCode::UNSUPPORTED_OPERATION, None))
+        }
+    }
+
+    fn getLights(&self) -> binder::Result<Vec<HwLight>> {
+        info!("Lights reporting supported lights");
+        Ok(self.lights.lock().unwrap().values().map(|light| light.hw_light).collect())
+    }
+}
diff --git a/light/aidl/default/main.cpp b/light/aidl/default/main.cpp
deleted file mode 100644
index 54e1316..0000000
--- a/light/aidl/default/main.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Lights.h"
-
-#include <android-base/logging.h>
-#include <android/binder_manager.h>
-#include <android/binder_process.h>
-
-using ::aidl::android::hardware::light::Lights;
-
-int main() {
-    ABinderProcess_setThreadPoolMaxThreadCount(0);
-    std::shared_ptr<Lights> lights = ndk::SharedRefBase::make<Lights>();
-
-    const std::string instance = std::string() + Lights::descriptor + "/default";
-    binder_status_t status = AServiceManager_addService(lights->asBinder().get(), instance.c_str());
-    CHECK_EQ(status, STATUS_OK);
-
-    ABinderProcess_joinThreadPool();
-    return EXIT_FAILURE;  // should not reached
-}
diff --git a/light/aidl/default/main.rs b/light/aidl/default/main.rs
new file mode 100644
index 0000000..8f32470
--- /dev/null
+++ b/light/aidl/default/main.rs
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//! This implements the Lights Example Service.
+
+use android_hardware_light::aidl::android::hardware::light::ILights::{BnLights, ILights};
+use binder::BinderFeatures;
+
+mod lights;
+use lights::LightsService;
+
+const LOG_TAG: &str = "lights_service_example_rust";
+
+use log::Level;
+
+fn main() {
+    let logger_success = logger::init(
+        logger::Config::default().with_tag_on_device(LOG_TAG).with_min_level(Level::Trace),
+    );
+    if !logger_success {
+        panic!("{LOG_TAG}: Failed to start logger.");
+    }
+
+    binder::ProcessState::set_thread_pool_max_thread_count(0);
+
+    let lights_service = LightsService::default();
+    let lights_service_binder = BnLights::new_binder(lights_service, BinderFeatures::default());
+
+    let service_name = format!("{}/default", LightsService::get_descriptor());
+    binder::add_service(&service_name, lights_service_binder.as_binder())
+        .expect("Failed to register service");
+
+    binder::ProcessState::join_thread_pool()
+}
diff --git a/security/keymint/aidl/default/android.hardware.security.keymint-service.xml b/security/keymint/aidl/default/android.hardware.security.keymint-service.xml
index a4d0302..0568ae6 100644
--- a/security/keymint/aidl/default/android.hardware.security.keymint-service.xml
+++ b/security/keymint/aidl/default/android.hardware.security.keymint-service.xml
@@ -1,12 +1,12 @@
 <manifest version="1.0" type="device">
     <hal format="aidl">
         <name>android.hardware.security.keymint</name>
-        <version>2</version>
+        <version>3</version>
         <fqname>IKeyMintDevice/default</fqname>
     </hal>
     <hal format="aidl">
         <name>android.hardware.security.keymint</name>
-        <version>2</version>
+        <version>3</version>
         <fqname>IRemotelyProvisionedComponent/default</fqname>
     </hal>
 </manifest>
diff --git a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
index 0fc359a..0499079 100644
--- a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
+++ b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
@@ -82,7 +82,7 @@
 
     string imei = ::android::base::Trim(out[0]);
     if (imei.compare("null") == 0) {
-        LOG(ERROR) << "Error in getting IMEI from Telephony service: value is null. Cmd: " << cmd;
+        LOG(WARNING) << "Failed to get IMEI from Telephony service: value is null. Cmd: " << cmd;
         return "";
     }
 
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
index b79700f..ee490a3 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
@@ -71,6 +71,11 @@
 // additional overhead, for the digest algorithmIdentifier required by PKCS#1.
 const size_t kPkcs1UndigestedSignaturePaddingOverhead = 11;
 
+size_t count_tag_invalid_entries(const std::vector<KeyParameter>& authorizations) {
+    return std::count_if(authorizations.begin(), authorizations.end(),
+                         [](const KeyParameter& e) -> bool { return e.tag == Tag::INVALID; });
+}
+
 typedef KeyMintAidlTestBase::KeyData KeyData;
 // Predicate for testing basic characteristics validity in generation or import.
 bool KeyCharacteristicsBasicallyValid(SecurityLevel secLevel,
@@ -84,6 +89,8 @@
             return false;
         }
 
+        EXPECT_EQ(count_tag_invalid_entries(entry.authorizations), 0);
+
         // Just ignore the SecurityLevel::KEYSTORE as the KM won't do any enforcement on this.
         if (entry.securityLevel == SecurityLevel::KEYSTORE) continue;
 
@@ -2042,6 +2049,27 @@
     return retval;
 }
 
+void assert_mgf_digests_present_in_key_characteristics(
+        const vector<KeyCharacteristics>& key_characteristics,
+        std::vector<android::hardware::security::keymint::Digest>& expected_mgf_digests) {
+    AuthorizationSet auths;
+    for (auto& entry : key_characteristics) {
+        auths.push_back(AuthorizationSet(entry.authorizations));
+    }
+    for (auto digest : expected_mgf_digests) {
+        ASSERT_TRUE(auths.Contains(TAG_RSA_OAEP_MGF_DIGEST, digest));
+    }
+}
+
+bool is_mgf_digest_present(const vector<KeyCharacteristics>& key_characteristics,
+                           android::hardware::security::keymint::Digest expected_mgf_digest) {
+    AuthorizationSet auths;
+    for (auto& entry : key_characteristics) {
+        auths.push_back(AuthorizationSet(entry.authorizations));
+    }
+    return auths.Contains(TAG_RSA_OAEP_MGF_DIGEST, expected_mgf_digest);
+}
+
 namespace {
 
 void check_cose_key(const vector<uint8_t>& data, bool testMode) {
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
index 0d0790f..5d32268 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
@@ -429,6 +429,11 @@
 X509_Ptr parse_cert_blob(const vector<uint8_t>& blob);
 ASN1_OCTET_STRING* get_attestation_record(X509* certificate);
 vector<uint8_t> make_name_from_str(const string& name);
+void assert_mgf_digests_present_in_key_characteristics(
+        const vector<KeyCharacteristics>& key_characteristics,
+        std::vector<android::hardware::security::keymint::Digest>& expected_mgf_digests);
+bool is_mgf_digest_present(const vector<KeyCharacteristics>& key_characteristics,
+                           android::hardware::security::keymint::Digest expected_mgf_digest);
 void check_maced_pubkey(const MacedPublicKey& macedPubKey, bool testMode,
                         vector<uint8_t>* payload_value);
 void p256_pub_key(const vector<uint8_t>& coseKeyData, EVP_PKEY_Ptr* signingKey);
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index c534a37..051ace4 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -3430,7 +3430,6 @@
  * Verifies ECDSA signature/verification for all digests and required curves.
  */
 TEST_P(SigningOperationsTest, EcdsaAllDigestsAndCurves) {
-
     string message = "1234567890";
     string corrupt_message = "2234567890";
     for (auto curve : ValidCurves()) {
@@ -4727,6 +4726,102 @@
     }
 }
 
+/*
+ * ImportKeyTest.RsaOaepMGFDigestSuccess
+ *
+ * Include MGF-Digest explicitly in import key authorization list.
+ * Test should import RSA key with OAEP padding and mgf-digests and verify that imported key
+ * should have the correct characteristics.
+ */
+TEST_P(ImportKeyTest, RsaOaepMGFDigestSuccess) {
+    auto mgf_digests = ValidDigests(false /* withNone */, true /* withMD5 */);
+    size_t key_size = 2048;
+
+    ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+                                               .OaepMGFDigest(mgf_digests)
+                                               .Authorization(TAG_NO_AUTH_REQUIRED)
+                                               .RsaEncryptionKey(key_size, 65537)
+                                               .Digest(Digest::SHA_2_256)
+                                               .Padding(PaddingMode::RSA_OAEP)
+                                               .SetDefaultValidity(),
+                                       KeyFormat::PKCS8, rsa_2048_key));
+
+    CheckCryptoParam(TAG_ALGORITHM, Algorithm::RSA);
+    CheckCryptoParam(TAG_KEY_SIZE, key_size);
+    CheckCryptoParam(TAG_RSA_PUBLIC_EXPONENT, 65537U);
+    CheckCryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+    CheckCryptoParam(TAG_PADDING, PaddingMode::RSA_OAEP);
+    CheckOrigin();
+
+    // Make sure explicitly specified mgf-digests exist in key characteristics.
+    assert_mgf_digests_present_in_key_characteristics(key_characteristics_, mgf_digests);
+
+    string message = "Hello";
+
+    for (auto digest : mgf_digests) {
+        SCOPED_TRACE(testing::Message() << "digest-" << digest);
+        auto params = AuthorizationSetBuilder()
+                              .Authorization(TAG_RSA_OAEP_MGF_DIGEST, digest)
+                              .Digest(Digest::SHA_2_256)
+                              .Padding(PaddingMode::RSA_OAEP);
+        string ciphertext1 = LocalRsaEncryptMessage(message, params);
+        if (HasNonfatalFailure()) std::cout << "-->" << digest << std::endl;
+        EXPECT_EQ(key_size / 8, ciphertext1.size());
+
+        string ciphertext2 = LocalRsaEncryptMessage(message, params);
+        if (HasNonfatalFailure()) std::cout << "-->" << digest << std::endl;
+        EXPECT_EQ(key_size / 8, ciphertext2.size());
+
+        // OAEP randomizes padding so every result should be different (with astronomically high
+        // probability).
+        EXPECT_NE(ciphertext1, ciphertext2);
+
+        string plaintext1 = DecryptMessage(ciphertext1, params);
+        EXPECT_EQ(message, plaintext1) << "RSA-OAEP failed with digest " << digest;
+        string plaintext2 = DecryptMessage(ciphertext2, params);
+        EXPECT_EQ(message, plaintext2) << "RSA-OAEP failed with digest " << digest;
+
+        // Decrypting corrupted ciphertext should fail.
+        size_t offset_to_corrupt = ciphertext1.size() - 1;
+        char corrupt_byte = ~ciphertext1[offset_to_corrupt];
+        ciphertext1[offset_to_corrupt] = corrupt_byte;
+
+        EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+        string result;
+        EXPECT_EQ(ErrorCode::UNKNOWN_ERROR, Finish(ciphertext1, &result));
+        EXPECT_EQ(0U, result.size());
+    }
+}
+
+/*
+ * ImportKeyTest.RsaOaepMGFDigestDefaultSuccess
+ *
+ * Don't specify MGF-Digest explicitly in import key authorization list.
+ * Test should import RSA key with OAEP padding and default mgf-digest (SHA1) and
+ * verify that imported key should have the correct characteristics. Default
+ * mgf-digest shouldn't be included in key charecteristics.
+ */
+TEST_P(ImportKeyTest, RsaOaepMGFDigestDefaultSuccess) {
+    size_t key_size = 2048;
+    ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+                                               .Authorization(TAG_NO_AUTH_REQUIRED)
+                                               .RsaEncryptionKey(key_size, 65537)
+                                               .Digest(Digest::SHA_2_256)
+                                               .Padding(PaddingMode::RSA_OAEP)
+                                               .SetDefaultValidity(),
+                                       KeyFormat::PKCS8, rsa_2048_key));
+
+    CheckCryptoParam(TAG_ALGORITHM, Algorithm::RSA);
+    CheckCryptoParam(TAG_KEY_SIZE, key_size);
+    CheckCryptoParam(TAG_RSA_PUBLIC_EXPONENT, 65537U);
+    CheckCryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+    CheckCryptoParam(TAG_PADDING, PaddingMode::RSA_OAEP);
+    CheckOrigin();
+
+    // Make sure default mgf-digest (SHA1) is not included in Key characteristics.
+    ASSERT_FALSE(is_mgf_digest_present(key_characteristics_, Digest::SHA1));
+}
+
 INSTANTIATE_KEYMINT_AIDL_TEST(ImportKeyTest);
 
 auto wrapped_key = hex2str(
@@ -5152,16 +5247,19 @@
  */
 TEST_P(EncryptionOperationsTest, RsaOaepSuccess) {
     auto digests = ValidDigests(false /* withNone */, true /* withMD5 */);
+    auto mgf_digest = Digest::SHA1;
 
     size_t key_size = 2048;  // Need largish key for SHA-512 test.
-    ASSERT_EQ(ErrorCode::OK,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .RsaEncryptionKey(key_size, 65537)
-                                  .Padding(PaddingMode::RSA_OAEP)
-                                  .Digest(digests)
-                                  .Authorization(TAG_RSA_OAEP_MGF_DIGEST, Digest::SHA1)
-                                  .SetDefaultValidity()));
+    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                 .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                 .RsaEncryptionKey(key_size, 65537)
+                                                 .Padding(PaddingMode::RSA_OAEP)
+                                                 .Digest(digests)
+                                                 .Authorization(TAG_RSA_OAEP_MGF_DIGEST, mgf_digest)
+                                                 .SetDefaultValidity()));
+
+    // Make sure explicitly specified mgf-digest exist in key characteristics.
+    ASSERT_TRUE(is_mgf_digest_present(key_characteristics_, mgf_digest));
 
     string message = "Hello";
 
@@ -5287,6 +5385,20 @@
                                                  .Digest(Digest::SHA_2_256)
                                                  .SetDefaultValidity()));
 
+    std::vector<Digest> mgf1DigestsInAuths;
+    mgf1DigestsInAuths.reserve(digests.size());
+    const auto& hw_auths = SecLevelAuthorizations(key_characteristics_);
+    std::for_each(hw_auths.begin(), hw_auths.end(), [&](auto& param) {
+        if (param.tag == Tag::RSA_OAEP_MGF_DIGEST) {
+            KeyParameterValue value = param.value;
+            mgf1DigestsInAuths.push_back(param.value.template get<KeyParameterValue::digest>());
+        }
+    });
+
+    std::sort(digests.begin(), digests.end());
+    std::sort(mgf1DigestsInAuths.begin(), mgf1DigestsInAuths.end());
+    EXPECT_EQ(digests, mgf1DigestsInAuths);
+
     string message = "Hello";
 
     for (auto digest : digests) {
@@ -5341,6 +5453,9 @@
                                                  .Digest(Digest::SHA_2_256)
                                                  .SetDefaultValidity()));
 
+    // Make sure default mgf-digest (SHA1) is not included in Key characteristics.
+    ASSERT_FALSE(is_mgf_digest_present(key_characteristics_, Digest::SHA1));
+
     // Do local RSA encryption using the default MGF digest of SHA-1.
     string message = "Hello";
     auto params =
@@ -5375,14 +5490,19 @@
  */
 TEST_P(EncryptionOperationsTest, RsaOaepMGFDigestDefaultFail) {
     size_t key_size = 2048;
-    ASSERT_EQ(ErrorCode::OK,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .Authorization(TAG_RSA_OAEP_MGF_DIGEST, Digest::SHA_2_256)
-                                  .RsaEncryptionKey(key_size, 65537)
-                                  .Padding(PaddingMode::RSA_OAEP)
-                                  .Digest(Digest::SHA_2_256)
-                                  .SetDefaultValidity()));
+    auto mgf_digest = Digest::SHA_2_256;
+    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                 .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                 .Authorization(TAG_RSA_OAEP_MGF_DIGEST, mgf_digest)
+                                                 .RsaEncryptionKey(key_size, 65537)
+                                                 .Padding(PaddingMode::RSA_OAEP)
+                                                 .Digest(Digest::SHA_2_256)
+                                                 .SetDefaultValidity()));
+
+    // Make sure explicitly specified mgf-digest exist in key characteristics.
+    ASSERT_TRUE(is_mgf_digest_present(key_characteristics_, mgf_digest));
+    // Make sure default mgf-digest is not included in key characteristics.
+    ASSERT_FALSE(is_mgf_digest_present(key_characteristics_, Digest::SHA1));
 
     // Do local RSA encryption using the default MGF digest of SHA-1.
     string message = "Hello";
@@ -5406,14 +5526,17 @@
  * with incompatible MGF digest.
  */
 TEST_P(EncryptionOperationsTest, RsaOaepWithMGFIncompatibleDigest) {
-    ASSERT_EQ(ErrorCode::OK,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .Authorization(TAG_RSA_OAEP_MGF_DIGEST, Digest::SHA_2_256)
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .RsaEncryptionKey(2048, 65537)
-                                  .Padding(PaddingMode::RSA_OAEP)
-                                  .Digest(Digest::SHA_2_256)
-                                  .SetDefaultValidity()));
+    auto mgf_digest = Digest::SHA_2_256;
+    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                 .Authorization(TAG_RSA_OAEP_MGF_DIGEST, mgf_digest)
+                                                 .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                 .RsaEncryptionKey(2048, 65537)
+                                                 .Padding(PaddingMode::RSA_OAEP)
+                                                 .Digest(Digest::SHA_2_256)
+                                                 .SetDefaultValidity()));
+    // Make sure explicitly specified mgf-digest exist in key characteristics.
+    ASSERT_TRUE(is_mgf_digest_present(key_characteristics_, mgf_digest));
+
     string message = "Hello World!";
 
     auto params = AuthorizationSetBuilder()
@@ -5430,14 +5553,17 @@
  * with unsupported MGF digest.
  */
 TEST_P(EncryptionOperationsTest, RsaOaepWithMGFUnsupportedDigest) {
-    ASSERT_EQ(ErrorCode::OK,
-              GenerateKey(AuthorizationSetBuilder()
-                                  .Authorization(TAG_RSA_OAEP_MGF_DIGEST, Digest::SHA_2_256)
-                                  .Authorization(TAG_NO_AUTH_REQUIRED)
-                                  .RsaEncryptionKey(2048, 65537)
-                                  .Padding(PaddingMode::RSA_OAEP)
-                                  .Digest(Digest::SHA_2_256)
-                                  .SetDefaultValidity()));
+    auto mgf_digest = Digest::SHA_2_256;
+    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                 .Authorization(TAG_RSA_OAEP_MGF_DIGEST, mgf_digest)
+                                                 .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                 .RsaEncryptionKey(2048, 65537)
+                                                 .Padding(PaddingMode::RSA_OAEP)
+                                                 .Digest(Digest::SHA_2_256)
+                                                 .SetDefaultValidity()));
+    // Make sure explicitly specified mgf-digest exist in key characteristics.
+    ASSERT_TRUE(is_mgf_digest_present(key_characteristics_, mgf_digest));
+
     string message = "Hello World!";
 
     auto params = AuthorizationSetBuilder()
diff --git a/sensors/2.1/default/apex/apex_manifest.json b/sensors/2.1/default/apex/apex_manifest.json
deleted file mode 100644
index 47e45ee..0000000
--- a/sensors/2.1/default/apex/apex_manifest.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "name": "com.android.hardware.sensors",
-  "version": 1
-}
diff --git a/sensors/2.1/default/apex/com.android.hardware.sensors.rc b/sensors/2.1/default/apex/com.android.hardware.sensors.rc
deleted file mode 100644
index bd245b4..0000000
--- a/sensors/2.1/default/apex/com.android.hardware.sensors.rc
+++ /dev/null
@@ -1,7 +0,0 @@
-service vendor.sensors-hal-2-1-mock /apex/com.android.hardware.sensors/bin/hw/android.hardware.sensors@2.1-service.mock
-    interface android.hardware.sensors@2.0::ISensors default
-    interface android.hardware.sensors@2.1::ISensors default
-    class hal
-    user system
-    group system
-    rlimit rtprio 10 10
diff --git a/sensors/2.1/default/apex/file_contexts b/sensors/2.1/default/apex/file_contexts
deleted file mode 100644
index d0095c0..0000000
--- a/sensors/2.1/default/apex/file_contexts
+++ /dev/null
@@ -1,5 +0,0 @@
-(/.*)?							u:object_r:vendor_file:s0
-# Permission XMLs
-/etc/permissions(/.*)?					u:object_r:vendor_configs_file:s0
-# Service binary
-/bin/hw/android\.hardware\.sensors@2\.1-service\.mock	u:object_r:hal_sensors_default_exec:s0
diff --git a/sensors/2.1/multihal/android.hardware.sensors@2.1-service-multihal.rc b/sensors/2.1/multihal/android.hardware.sensors@2.1-service-multihal.rc
index deea16e..e149058 100644
--- a/sensors/2.1/multihal/android.hardware.sensors@2.1-service-multihal.rc
+++ b/sensors/2.1/multihal/android.hardware.sensors@2.1-service-multihal.rc
@@ -1,7 +1,7 @@
 service vendor.sensors-hal-2-1-multihal /vendor/bin/hw/android.hardware.sensors@2.1-service.multihal
     class hal
     user system
-    group system wakelock context_hub input
+    group system wakelock context_hub input uhid
     task_profiles ServiceCapacityLow
     capabilities BLOCK_SUSPEND
     rlimit rtprio 10 10
diff --git a/sensors/aidl/default/Android.bp b/sensors/aidl/default/Android.bp
index 49841a4..3c66744 100644
--- a/sensors/aidl/default/Android.bp
+++ b/sensors/aidl/default/Android.bp
@@ -23,6 +23,16 @@
     default_applicable_licenses: ["hardware_interfaces_license"],
 }
 
+filegroup {
+    name: "sensors-default.rc",
+    srcs: ["sensors-default.rc"],
+}
+
+filegroup {
+    name: "sensors-default.xml",
+    srcs: ["sensors-default.xml"],
+}
+
 cc_library_static {
     name: "libsensorsexampleimpl",
     vendor: true,
@@ -47,8 +57,8 @@
 cc_binary {
     name: "android.hardware.sensors-service.example",
     relative_install_path: "hw",
-    init_rc: ["sensors-default.rc"],
-    vintf_fragments: ["sensors-default.xml"],
+    init_rc: [":sensors-default.rc"],
+    vintf_fragments: [":sensors-default.xml"],
     vendor: true,
     shared_libs: [
         "libbase",
diff --git a/sensors/2.1/default/apex/Android.bp b/sensors/aidl/default/apex/Android.bp
similarity index 78%
rename from sensors/2.1/default/apex/Android.bp
rename to sensors/aidl/default/apex/Android.bp
index 3345b92..ceb428b 100644
--- a/sensors/2.1/default/apex/Android.bp
+++ b/sensors/aidl/default/apex/Android.bp
@@ -13,9 +13,16 @@
     certificate: "com.android.hardware.sensors",
 }
 
+genrule {
+    name: "com.android.hardware.sensors.rc-gen",
+    srcs: [":sensors-default.rc"],
+    out: ["com.android.hardware.sensors.rc"],
+    cmd: "sed -E 's/\\/vendor/\\/apex\\/com.android.hardware.sensors/' $(in) > $(out)",
+}
+
 prebuilt_etc {
     name: "com.android.hardware.sensors.rc",
-    src: "com.android.hardware.sensors.rc",
+    src: ":com.android.hardware.sensors.rc-gen",
     installable: false,
 }
 
@@ -31,7 +38,7 @@
     updatable: false,
     // Install the apex in /vendor/apex
     soc_specific: true,
-    binaries: ["android.hardware.sensors@2.1-service.mock"],
+    binaries: ["android.hardware.sensors-service.example"],
     prebuilts: [
         "com.android.hardware.sensors.rc",
         "android.hardware.sensor.ambient_temperature.prebuilt.xml",
@@ -42,5 +49,5 @@
         "android.hardware.sensor.proximity.prebuilt.xml",
         "android.hardware.sensor.relative_humidity.prebuilt.xml",
     ],
-    vintf_fragments: [":android.hardware.sensors@2.1.xml"],
+    vintf_fragments: [":sensors-default.xml"],
 }
diff --git a/sensors/aidl/default/apex/apex_manifest.json b/sensors/aidl/default/apex/apex_manifest.json
new file mode 100644
index 0000000..659e739
--- /dev/null
+++ b/sensors/aidl/default/apex/apex_manifest.json
@@ -0,0 +1,4 @@
+{
+    "name": "com.android.hardware.sensors",
+    "version": 1
+}
diff --git a/sensors/2.1/default/apex/com.android.hardware.sensors.avbpubkey b/sensors/aidl/default/apex/com.android.hardware.sensors.avbpubkey
similarity index 100%
rename from sensors/2.1/default/apex/com.android.hardware.sensors.avbpubkey
rename to sensors/aidl/default/apex/com.android.hardware.sensors.avbpubkey
Binary files differ
diff --git a/sensors/2.1/default/apex/com.android.hardware.sensors.pem b/sensors/aidl/default/apex/com.android.hardware.sensors.pem
similarity index 100%
rename from sensors/2.1/default/apex/com.android.hardware.sensors.pem
rename to sensors/aidl/default/apex/com.android.hardware.sensors.pem
diff --git a/sensors/2.1/default/apex/com.android.hardware.sensors.pk8 b/sensors/aidl/default/apex/com.android.hardware.sensors.pk8
similarity index 100%
rename from sensors/2.1/default/apex/com.android.hardware.sensors.pk8
rename to sensors/aidl/default/apex/com.android.hardware.sensors.pk8
Binary files differ
diff --git a/sensors/2.1/default/apex/com.android.hardware.sensors.x509.pem b/sensors/aidl/default/apex/com.android.hardware.sensors.x509.pem
similarity index 100%
rename from sensors/2.1/default/apex/com.android.hardware.sensors.x509.pem
rename to sensors/aidl/default/apex/com.android.hardware.sensors.x509.pem
diff --git a/sensors/aidl/default/apex/file_contexts b/sensors/aidl/default/apex/file_contexts
new file mode 100644
index 0000000..27be16b
--- /dev/null
+++ b/sensors/aidl/default/apex/file_contexts
@@ -0,0 +1,5 @@
+(/.*)?							u:object_r:vendor_file:s0
+# Permission XMLs
+/etc/permissions(/.*)?					u:object_r:vendor_configs_file:s0
+# Service binary
+/bin/hw/android\.hardware\.sensors-service\.example	u:object_r:hal_sensors_default_exec:s0
\ No newline at end of file
diff --git a/tv/tuner/1.1/vts/functional/FilterTests.cpp b/tv/tuner/1.1/vts/functional/FilterTests.cpp
index 8bdf8f6..a24cd63 100644
--- a/tv/tuner/1.1/vts/functional/FilterTests.cpp
+++ b/tv/tuner/1.1/vts/functional/FilterTests.cpp
@@ -311,12 +311,6 @@
             android::hardware::tv::tuner::V1_1::IFilter::castFrom(mFilters[filterId]);
     if (filter_v1_1 != NULL) {
         status = filter_v1_1->configureMonitorEvent(monitorEventTypes);
-        if (monitorEventTypes & DemuxFilterMonitorEventType::SCRAMBLING_STATUS) {
-            mFilterCallbacks[filterId]->testFilterScramblingEvent();
-        }
-        if (monitorEventTypes & DemuxFilterMonitorEventType::IP_CID_CHANGE) {
-            mFilterCallbacks[filterId]->testFilterIpCidEvent();
-        }
     } else {
         ALOGW("[vts] Can't cast IFilter into v1_1.");
         return failure();
@@ -324,6 +318,17 @@
     return AssertionResult(status == Result::SUCCESS);
 }
 
+AssertionResult FilterTests::testMonitorEvent(uint64_t filterId, uint32_t monitorEventTypes) {
+    EXPECT_TRUE(mFilterCallbacks[filterId]) << "Test with getNewlyOpenedFilterId first.";
+    if (monitorEventTypes & DemuxFilterMonitorEventType::SCRAMBLING_STATUS) {
+        mFilterCallbacks[filterId]->testFilterScramblingEvent();
+    }
+    if (monitorEventTypes & DemuxFilterMonitorEventType::IP_CID_CHANGE) {
+        mFilterCallbacks[filterId]->testFilterIpCidEvent();
+    }
+    return AssertionResult(true);
+}
+
 AssertionResult FilterTests::startIdTest(uint64_t filterId) {
     EXPECT_TRUE(mFilterCallbacks[filterId]) << "Test with getNewlyOpenedFilterId first.";
     mFilterCallbacks[filterId]->testStartIdAfterReconfigure();
diff --git a/tv/tuner/1.1/vts/functional/FilterTests.h b/tv/tuner/1.1/vts/functional/FilterTests.h
index 1a1273e..e652154 100644
--- a/tv/tuner/1.1/vts/functional/FilterTests.h
+++ b/tv/tuner/1.1/vts/functional/FilterTests.h
@@ -159,6 +159,7 @@
     AssertionResult configAvFilterStreamType(AvStreamType type, uint64_t filterId);
     AssertionResult configIpFilterCid(uint32_t ipCid, uint64_t filterId);
     AssertionResult configureMonitorEvent(uint64_t filterId, uint32_t monitorEventTypes);
+    AssertionResult testMonitorEvent(uint64_t filterId, uint32_t monitorEventTypes);
     AssertionResult getFilterMQDescriptor(uint64_t filterId, bool getMqDesc);
     AssertionResult startFilter(uint64_t filterId);
     AssertionResult stopFilter(uint64_t filterId);
diff --git a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp
index 41acaa1..fccd2ed 100644
--- a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp
+++ b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp
@@ -48,6 +48,11 @@
     }
     ASSERT_TRUE(mFilterTests.getFilterMQDescriptor(filterId, filterConf.config1_0.getMqDesc));
     ASSERT_TRUE(mFilterTests.startFilter(filterId));
+    ASSERT_TRUE(mFrontendTests.tuneFrontend(frontendConf, true /*testWithDemux*/));
+    if (filterConf.monitorEventTypes > 0) {
+        ASSERT_TRUE(mFilterTests.testMonitorEvent(filterId, filterConf.monitorEventTypes));
+    }
+    ASSERT_TRUE(mFrontendTests.stopTuneFrontend(true /*testWithDemux*/));
     ASSERT_TRUE(mFilterTests.stopFilter(filterId));
     ASSERT_TRUE(mFilterTests.closeFilter(filterId));
     ASSERT_TRUE(mDemuxTests.closeDemux());
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl
index 25d704e..ff9c247 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl
@@ -34,23 +34,24 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="int") @VintfStability
 enum UwbVendorCapabilityTlvTypes {
-  SUPPORTED_POWER_STATS_QUERY = 192,
-  CCC_SUPPORTED_CHAPS_PER_SLOT = 160,
-  CCC_SUPPORTED_SYNC_CODES = 161,
-  CCC_SUPPORTED_HOPPING_CONFIG_MODES_AND_SEQUENCES = 162,
-  CCC_SUPPORTED_CHANNELS = 163,
-  CCC_SUPPORTED_VERSIONS = 164,
-  CCC_SUPPORTED_UWB_CONFIGS = 165,
-  CCC_SUPPORTED_PULSE_SHAPE_COMBOS = 166,
-  CCC_SUPPORTED_RAN_MULTIPLIER = 167,
-  CCC_SUPPORTED_MAX_RANGING_SESSION_NUMBER = 168,
-  CCC_SUPPORTED_MIN_UWB_INITIATION_TIME_MS = 169,
-  SUPPORTED_AOA_RESULT_REQ_ANTENNA_INTERLEAVING = 227,
-  SUPPORTED_MIN_RANGING_INTERVAL_MS = 228,
-  SUPPORTED_RANGE_DATA_NTF_CONFIG = 229,
-  SUPPORTED_RSSI_REPORTING = 230,
-  SUPPORTED_DIAGNOSTICS = 231,
-  SUPPORTED_MIN_SLOT_DURATION_RSTU = 232,
-  SUPPORTED_MAX_RANGING_SESSION_NUMBER = 233,
-  SUPPORTED_CHANNELS_AOA = 234,
+  SUPPORTED_POWER_STATS_QUERY = 0xC0,
+  CCC_SUPPORTED_CHAPS_PER_SLOT = 0xA0,
+  CCC_SUPPORTED_SYNC_CODES = 0xA1,
+  CCC_SUPPORTED_HOPPING_CONFIG_MODES_AND_SEQUENCES = 0xA2,
+  CCC_SUPPORTED_CHANNELS = 0xA3,
+  CCC_SUPPORTED_VERSIONS = 0xA4,
+  CCC_SUPPORTED_UWB_CONFIGS = 0xA5,
+  CCC_SUPPORTED_PULSE_SHAPE_COMBOS = 0xA6,
+  CCC_SUPPORTED_RAN_MULTIPLIER = 0xA7,
+  CCC_SUPPORTED_MAX_RANGING_SESSION_NUMBER = 0xA8,
+  CCC_SUPPORTED_MIN_UWB_INITIATION_TIME_MS = 0xA9,
+  RADAR_SUPPORT = 0xB0,
+  SUPPORTED_AOA_RESULT_REQ_ANTENNA_INTERLEAVING = 0xE3,
+  SUPPORTED_MIN_RANGING_INTERVAL_MS = 0xE4,
+  SUPPORTED_RANGE_DATA_NTF_CONFIG = 0xE5,
+  SUPPORTED_RSSI_REPORTING = 0xE6,
+  SUPPORTED_DIAGNOSTICS = 0xE7,
+  SUPPORTED_MIN_SLOT_DURATION_RSTU = 0xE8,
+  SUPPORTED_MAX_RANGING_SESSION_NUMBER = 0xE9,
+  SUPPORTED_CHANNELS_AOA = 0xEA,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl
index 0e33f70..702e561 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl
@@ -40,17 +40,19 @@
   PULSE_SHAPE_PRECURSOR_FREE = 1,
   PULSE_SHAPE_PRECURSOR_FREE_SPECIAL = 2,
   CHAPS_PER_SLOT_3 = 1,
-  CHAPS_PER_SLOT_4 = 2,
-  CHAPS_PER_SLOT_6 = 4,
-  CHAPS_PER_SLOT_8 = 8,
-  CHAPS_PER_SLOT_9 = 16,
-  CHAPS_PER_SLOT_12 = 32,
-  CHAPS_PER_SLOT_24 = 64,
-  HOPPING_SEQUENCE_DEFAULT = 16,
-  HOPPING_SEQUENCE_AES = 8,
-  HOPPING_CONFIG_MODE_NONE = 128,
-  HOPPING_CONFIG_MODE_CONTINUOUS = 64,
-  HOPPING_CONFIG_MODE_ADAPTIVE = 32,
+  CHAPS_PER_SLOT_4 = (1 << 1) /* 2 */,
+  CHAPS_PER_SLOT_6 = (1 << 2) /* 4 */,
+  CHAPS_PER_SLOT_8 = (1 << 3) /* 8 */,
+  CHAPS_PER_SLOT_9 = (1 << 4) /* 16 */,
+  CHAPS_PER_SLOT_12 = (1 << 5) /* 32 */,
+  CHAPS_PER_SLOT_24 = (1 << 6) /* 64 */,
+  HOPPING_SEQUENCE_DEFAULT = (1 << 4) /* 16 */,
+  HOPPING_SEQUENCE_AES = (1 << 3) /* 8 */,
+  HOPPING_CONFIG_MODE_NONE = (1 << 7) /* 128 */,
+  HOPPING_CONFIG_MODE_CONTINUOUS = (1 << 6) /* 64 */,
+  HOPPING_CONFIG_MODE_ADAPTIVE = (1 << 5) /* 32 */,
   CCC_CHANNEL_5 = 1,
-  CCC_CHANNEL_9 = 2,
+  CCC_CHANNEL_9 = (1 << 1) /* 2 */,
+  RADAR_NOT_SUPPORTED = 0,
+  RADAR_SWEEP_SAMPLES_SUPPORTED = 1,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl
index fbcfbff..34bc4ec 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl
@@ -34,7 +34,10 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="byte") @VintfStability
 enum UwbVendorGidAndroidOids {
-  ANDROID_GET_POWER_STATS = 0,
-  ANDROID_SET_COUNTRY_CODE = 1,
-  ANDROID_RANGE_DIAGNOSTICS = 2,
+  ANDROID_GET_POWER_STATS = 0x0,
+  ANDROID_SET_COUNTRY_CODE = 0x1,
+  ANDROID_RANGE_DIAGNOSTICS = 0x2,
+  RADAR_SET_APP_CONFIG = 0x11,
+  RADAR_GET_APP_CONFIG = 0x12,
+  RADAR_DATA_NTF = 0x13,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGids.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGids.aidl
index 5515c67..f02ed70 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGids.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorGids.aidl
@@ -34,5 +34,5 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="byte") @VintfStability
 enum UwbVendorGids {
-  ANDROID = 12,
+  ANDROID = 0xC,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvTypes.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvTypes.aidl
new file mode 100644
index 0000000..760166c
--- /dev/null
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvTypes.aidl
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.uwb.fira_android;
+@Backing(type="int") @VintfStability
+enum UwbVendorRadarAppConfigTlvTypes {
+  RADAR_TIMING_PARAMS = 0x0,
+  SAMPLES_PER_SWEEP = 0x1,
+  RADAR_CHANNEL_NUMBER = 0x2,
+  SWEEP_OFFSET = 0x3,
+  RADAR_RFRAME_CONFIG = 0x4,
+  RADAR_PREAMBLE_DURATION = 0x5,
+  RADAR_PREAMBLE_CODE_INDEX = 0x6,
+  RADAR_SESSION_PRIORITY = 0x7,
+  BITS_PER_SAMPLE = 0x8,
+  RADAR_PRF_MODE = 0x9,
+  NUMBER_OF_BURSTS = 0xA,
+  RADAR_DATA_TYPE = 0xB,
+}
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvValues.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvValues.aidl
new file mode 100644
index 0000000..1eb2ce9
--- /dev/null
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvValues.aidl
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.uwb.fira_android;
+@Backing(type="int") @VintfStability
+enum UwbVendorRadarAppConfigTlvValues {
+  RADAR_DATA_TYPE_RADAR_SWEEP_SAMPLES = 0x0,
+}
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorReasonCodes.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorReasonCodes.aidl
index a438cbe..db1e0db 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorReasonCodes.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorReasonCodes.aidl
@@ -34,7 +34,7 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="int") @VintfStability
 enum UwbVendorReasonCodes {
-  REASON_ERROR_INVALID_CHANNEL_WITH_AOA = 128,
-  REASON_ERROR_STOPPED_DUE_TO_OTHER_SESSION_CONFLICT = 129,
-  REASON_REGULATION_UWB_OFF = 130,
+  REASON_ERROR_INVALID_CHANNEL_WITH_AOA = 0x80,
+  REASON_ERROR_STOPPED_DUE_TO_OTHER_SESSION_CONFLICT = 0x81,
+  REASON_REGULATION_UWB_OFF = 0x82,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
index c3ac401..d02cf4d 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
@@ -34,16 +34,16 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="int") @VintfStability
 enum UwbVendorSessionAppConfigTlvTypes {
-  CCC_HOP_MODE_KEY = 160,
-  CCC_UWB_TIME0 = 161,
-  CCC_RANGING_PROTOCOL_VER = 163,
-  CCC_UWB_CONFIG_ID = 164,
-  CCC_PULSESHAPE_COMBO = 165,
-  CCC_URSK_TTL = 166,
-  CCC_LAST_INDEX_USED = 168,
-  NB_OF_RANGE_MEASUREMENTS = 227,
-  NB_OF_AZIMUTH_MEASUREMENTS = 228,
-  NB_OF_ELEVATION_MEASUREMENTS = 229,
-  ENABLE_DIAGNOSTICS = 232,
-  DIAGRAMS_FRAME_REPORTS_FIELDS = 233,
+  CCC_HOP_MODE_KEY = 0xA0,
+  CCC_UWB_TIME0 = 0xA1,
+  CCC_RANGING_PROTOCOL_VER = 0xA3,
+  CCC_UWB_CONFIG_ID = 0xA4,
+  CCC_PULSESHAPE_COMBO = 0xA5,
+  CCC_URSK_TTL = 0xA6,
+  CCC_LAST_INDEX_USED = 0xA8,
+  NB_OF_RANGE_MEASUREMENTS = 0xE3,
+  NB_OF_AZIMUTH_MEASUREMENTS = 0xE4,
+  NB_OF_ELEVATION_MEASUREMENTS = 0xE5,
+  ENABLE_DIAGNOSTICS = 0xE8,
+  DIAGRAMS_FRAME_REPORTS_FIELDS = 0xE9,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvValues.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvValues.aidl
index a7f487b..5216e1f 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvValues.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvValues.aidl
@@ -34,5 +34,5 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="int") @VintfStability
 enum UwbVendorSessionAppConfigTlvValues {
-  AOA_RESULT_REQ_ANTENNA_INTERLEAVING = 240,
+  AOA_RESULT_REQ_ANTENNA_INTERLEAVING = 0xF0,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl
index 30a0a1b..bf968bd 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl
@@ -34,5 +34,6 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="int") @VintfStability
 enum UwbVendorSessionInitSessionType {
-  CCC = 160,
+  CCC = 0xA0,
+  RADAR = 0xA1,
 }
diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorStatusCodes.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorStatusCodes.aidl
index 28cf7fe..52f1350 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorStatusCodes.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorStatusCodes.aidl
@@ -34,8 +34,8 @@
 package android.hardware.uwb.fira_android;
 @Backing(type="byte") @VintfStability
 enum UwbVendorStatusCodes {
-  STATUS_ERROR_CCC_SE_BUSY = 80,
-  STATUS_ERROR_CCC_LIFECYCLE = 81,
-  STATUS_ERROR_STOPPED_DUE_TO_OTHER_SESSION_CONFLICT = 82,
-  STATUS_REGULATION_UWB_OFF = 83,
+  STATUS_ERROR_CCC_SE_BUSY = 0x50,
+  STATUS_ERROR_CCC_LIFECYCLE = 0x51,
+  STATUS_ERROR_STOPPED_DUE_TO_OTHER_SESSION_CONFLICT = 0x52,
+  STATUS_REGULATION_UWB_OFF = 0x53,
 }
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/README.md b/uwb/aidl/android/hardware/uwb/fira_android/README.md
index e658d93..7912bbc 100644
--- a/uwb/aidl/android/hardware/uwb/fira_android/README.md
+++ b/uwb/aidl/android/hardware/uwb/fira_android/README.md
@@ -10,6 +10,3 @@
 All other interactions sent/received over the HAL interface is expected to
 comply with the UCI specification that can be found [here](
 https://groups.firaconsortium.org/wg/Technical/document/folder/127).
-
-TODO([b/196004116](b/196004116)): Link to the published specification.
-
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl
index 22b7bfe..ceef1be 100644
--- a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvTypes.aidl
@@ -150,6 +150,16 @@
     CCC_SUPPORTED_MIN_UWB_INITIATION_TIME_MS = 0xA9,
 
     /*********************************************
+     * RADAR specific
+     ********************************************/
+    /**
+     * 1 byte bitmask to indicate the supported Radar data types.
+     * Each "1" in this bitmap corresponds to a specific radar data type where:
+     * 0x01 = "Radar Sweep Samples",
+     */
+    RADAR_SUPPORT = 0xB0,
+
+    /*********************************************
      * FIRA specific
      ********************************************/
     /**
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl
index 7c86b79..6ef52fe 100644
--- a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorCapabilityTlvValues.aidl
@@ -51,4 +51,10 @@
 
     CCC_CHANNEL_5 = 1,
     CCC_CHANNEL_9 = 1 << 1,
+
+    /*********************************************
+     * RADAR specific
+     ********************************************/
+    RADAR_NOT_SUPPORTED = 0,
+    RADAR_SWEEP_SAMPLES_SUPPORTED = 1,
 }
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl
index 4768f55..203b940 100644
--- a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorGidAndroidOids.aidl
@@ -37,4 +37,15 @@
     // Supported only if the UwbVendorCapabilityTlvTypes.SUPPORTED_DIAGNOSTICS set
     // to 1.
     ANDROID_RANGE_DIAGNOSTICS = 0x2,
+
+    /*********************************************
+     * Range 0x10 - 0x1F reserved for RADAR specific
+     * Supported only if the UwbVendorCapabilityTlvTypes.RADAR_SUPPORT is not 0x00.
+     ********************************************/
+    // Used to set application configurations for radar session.
+    RADAR_SET_APP_CONFIG = 0x11,
+    // Used to get application configurations for radar session.
+    RADAR_GET_APP_CONFIG = 0x12,
+    // Used to report radar data for certain radar data types.
+    RADAR_DATA_NTF = 0x13,
 }
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvTypes.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvTypes.aidl
new file mode 100644
index 0000000..a5ea688
--- /dev/null
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvTypes.aidl
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.uwb.fira_android;
+
+/**
+ * Android specific radar app params set/expected in UCI command:
+ * GID: 1100b (Android specific Group)
+ * OID: 010001b (RADAR_SET_APP_CONFIG_CMD)
+ * OID: 010010b (RADAR_GET_APP_CONFIG_CMD)
+ */
+@VintfStability
+@Backing(type="int")
+enum UwbVendorRadarAppConfigTlvTypes {
+    /**
+     * 7 byte data
+     * Radar frame timing parameters:
+     * Octet [3:0] - BURST_PERIOD
+     *   Duration between the start of two consecutive Radar bursts in ms.
+     * Octet [5:4] - SWEEP_PERIOD
+     *   Duration between the start times of two consecutive Radar sweeps in
+     *   RSTU.
+     * Octet [6] - SWEEPS_PER_BURST
+     *   Number of Radar sweeps within the Radar burst.
+     */
+    RADAR_TIMING_PARAMS = 0x0,
+    /**
+     * 1 byte data
+     * The number of samples captured for each radar sweep. (default = 64)
+     */
+    SAMPLES_PER_SWEEP = 0x1,
+    /**
+     * 1 byte data
+     * Same as in FiRa UCI Session App Config.
+     * (default = 9)
+     */
+    RADAR_CHANNEL_NUMBER = 0x2,
+    /**
+     * 2 byte data
+     * Defines the start offset with respect to 0cm distance to limit the sweep
+     * range. Signed value and unit in samples.
+     * (default = 0)
+     */
+    SWEEP_OFFSET = 0x3,
+    /**
+     * 1 byte data
+     * Same as in FiRa UCI Session App Config.
+     * (default = 0x0)
+     */
+    RADAR_RFRAME_CONFIG = 0x4,
+    /**
+     * 1 byte data
+     * Same as in FiRa UCI Session App Config, but extended to 0xA.
+     * (default = 0x2 : 128 symbols)
+     */
+    RADAR_PREAMBLE_DURATION = 0x5,
+    /**
+     * 1 byte data
+     * Same as in FiRa UCI Session App Config, but extended to 127.
+     * (default = 25)
+     */
+    RADAR_PREAMBLE_CODE_INDEX = 0x6,
+    /**
+     * 1 byte data
+     * Same as in FiRa UCI Session App Config.
+     * (default = 50)
+     */
+    RADAR_SESSION_PRIORITY = 0x7,
+    /**
+     * 1 byte data
+     * Bits per sample in the radar sweep.
+     * 0x00 = 32 bits per sample (default)
+     * 0x01 = 48 bits per sample
+     * 0x02 = 64 bits per sample
+     */
+    BITS_PER_SAMPLE = 0x8,
+    /**
+     * 1 byte data
+     * Same as in FiRa UCI Session App Config.
+     * (default = 0x1)
+     */
+    RADAR_PRF_MODE = 0x9,
+    /**
+     * 2 byte data
+     * Maximum number of Radar bursts to be executed in the session. The
+     * session is stopped and moved to SESSION_STATE_IDLE Session State when
+     * configured radar bursts are elapsed.
+     * 0x00 = Unlimited (default)
+     */
+    NUMBER_OF_BURSTS = 0xA,
+    /**
+     * 2 byte data
+     * Type of radar data to be reported.
+     * 0x00: Radar Sweep Samples. Reported in RADAR_DATA_NTF. (default)
+     */
+    RADAR_DATA_TYPE = 0xB,
+}
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvValues.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvValues.aidl
new file mode 100644
index 0000000..81c0a4d
--- /dev/null
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorRadarAppConfigTlvValues.aidl
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.uwb.fira_android;
+
+/**
+ * Android specific radar app config values set/expected in UCI command:
+ * GID: 1100b (Android specific Group)
+ * OID: 010001b (RADAR_SET_APP_CONFIG_CMD)
+ * OID: 010010b (RADAR_GET_APP_CONFIG_CMD)
+ */
+@VintfStability
+@Backing(type="int")
+enum UwbVendorRadarAppConfigTlvValues {
+    RADAR_DATA_TYPE_RADAR_SWEEP_SAMPLES = 0x0,
+}
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl
index 1e2c817..d3df672 100644
--- a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionInitSessionType.aidl
@@ -29,4 +29,5 @@
 enum UwbVendorSessionInitSessionType {
     /** Added in vendor version 0. */
     CCC = 0xA0,
+    RADAR = 0xA1,
 }