diff --git a/TEST_MAPPING b/TEST_MAPPING
index 98e125b..0e18f48 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -1,6 +1,12 @@
 {
   "presubmit": [
     {
+      "name": "vts_treble_vintf_framework_test"
+    },
+    {
+      "name": "vts_treble_vintf_vendor_test"
+    },
+    {
       "name": "hidl_implementation_test"
     }
   ]
diff --git a/audio/6.0/IDevice.hal b/audio/6.0/IDevice.hal
index e885fe2..520e776 100644
--- a/audio/6.0/IDevice.hal
+++ b/audio/6.0/IDevice.hal
@@ -280,4 +280,15 @@
      */
     setConnectedState(DeviceAddress address, bool connected)
             generates (Result retval);
+
+    /**
+     * Called by the framework to deinitialize the device and free up
+     * all currently allocated resources. It is recommended to close
+     * the device on the client side as soon as it is becomes unused.
+     *
+     * @return retval OK in case the success.
+     *                INVALID_STATE if the device was already closed.
+     */
+    @exit
+    close() generates (Result retval);
 };
diff --git a/audio/6.0/IStream.hal b/audio/6.0/IStream.hal
index 451e116..d7d3c84 100644
--- a/audio/6.0/IStream.hal
+++ b/audio/6.0/IStream.hal
@@ -277,7 +277,7 @@
      * @return retval OK in case the success.
      *                NOT_SUPPORTED on non mmap mode streams
      *                NOT_INITIALIZED in case of memory allocation error
-     *                INVALID_ARGUMENTS if the requested buffer size is too large
+     *                INVALID_ARGUMENTS if the requested buffer size is invalid
      *                INVALID_STATE if called out of sequence
      * @return info    a MmapBufferInfo struct containing information on the MMMAP buffer created.
      */
@@ -300,13 +300,17 @@
 
     /**
      * Called by the framework to deinitialize the stream and free up
-     * all the currently allocated resources. It is recommended to close
+     * all currently allocated resources. It is recommended to close
      * the stream on the client side as soon as it is becomes unused.
      *
+     * The client must ensure that this function is not called while
+     * audio data is being transferred through the stream's message queues.
+     *
      * @return retval OK in case the success.
      *                NOT_SUPPORTED if called on IStream instead of input or
      *                              output stream interface.
      *                INVALID_STATE if the stream was already closed.
      */
+    @exit
     close() generates (Result retval);
 };
diff --git a/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h b/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h
deleted file mode 100644
index 3833fd0..0000000
--- a/audio/common/all-versions/test/utility/include/utility/PrettyPrintAudioTypes.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_COMMON_TEST_UTILITY_PRETTY_PRINT_AUDIO_TYPES_H
-#define ANDROID_HARDWARE_AUDIO_COMMON_TEST_UTILITY_PRETTY_PRINT_AUDIO_TYPES_H
-
-#include <iosfwd>
-#include <utility>
-
-/** @file Use HIDL generated toString methods to pretty print gtest errors
- *        Unfortunately Gtest does not offer a template to specialize, only
- *        overloading PrintTo.
- *  @note that this overload can NOT be template because
- *        the fallback is already template, resulting in ambiguity.
- *  @note that the overload MUST be in the exact namespace
- *        the type is declared in, as per the ADL rules.
- */
-
-namespace android {
-namespace hardware {
-namespace audio {
-
-#define DEFINE_GTEST_PRINT_TO(T) \
-    inline void PrintTo(const T& val, ::std::ostream* os) { *os << toString(val); }
-
-namespace CPP_VERSION {
-DEFINE_GTEST_PRINT_TO(IPrimaryDevice::TtyMode)
-DEFINE_GTEST_PRINT_TO(Result)
-}  // namespace CPP_VERSION
-
-namespace common {
-namespace CPP_VERSION {
-DEFINE_GTEST_PRINT_TO(AudioConfig)
-DEFINE_GTEST_PRINT_TO(AudioMode)
-DEFINE_GTEST_PRINT_TO(AudioDevice)
-DEFINE_GTEST_PRINT_TO(AudioFormat)
-DEFINE_GTEST_PRINT_TO(AudioChannelMask)
-}  // namespace CPP_VERSION
-}  // namespace common
-
-#undef DEFINE_GTEST_PRINT_TO
-
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_AUDIO_COMMON_TEST_UTILITY_PRETTY_PRINT_AUDIO_TYPES_H
diff --git a/audio/core/all-versions/default/Device.cpp b/audio/core/all-versions/default/Device.cpp
index 1a9df21..5ea4c8d 100644
--- a/audio/core/all-versions/default/Device.cpp
+++ b/audio/core/all-versions/default/Device.cpp
@@ -39,11 +39,10 @@
 
 using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
 
-Device::Device(audio_hw_device_t* device) : mDevice(device) {}
+Device::Device(audio_hw_device_t* device) : mIsClosed(false), mDevice(device) {}
 
 Device::~Device() {
-    int status = audio_hw_device_close(mDevice);
-    ALOGW_IF(status, "Error closing audio hw device %p: %s", mDevice, strerror(-status));
+    (void)doClose();
     mDevice = nullptr;
 }
 
@@ -383,6 +382,18 @@
 }
 #endif
 
+Result Device::doClose() {
+    if (mIsClosed) return Result::INVALID_STATE;
+    mIsClosed = true;
+    return analyzeStatus("close", audio_hw_device_close(mDevice));
+}
+
+#if MAJOR_VERSION >= 6
+Return<Result> Device::close() {
+    return doClose();
+}
+#endif
+
 }  // namespace implementation
 }  // namespace CPP_VERSION
 }  // namespace audio
diff --git a/audio/core/all-versions/default/PrimaryDevice.cpp b/audio/core/all-versions/default/PrimaryDevice.cpp
index 99590b0..3cf0932 100644
--- a/audio/core/all-versions/default/PrimaryDevice.cpp
+++ b/audio/core/all-versions/default/PrimaryDevice.cpp
@@ -31,7 +31,11 @@
 
 PrimaryDevice::PrimaryDevice(audio_hw_device_t* device) : mDevice(new Device(device)) {}
 
-PrimaryDevice::~PrimaryDevice() {}
+PrimaryDevice::~PrimaryDevice() {
+    // Do not call mDevice->close here. If there are any unclosed streams,
+    // they only hold IDevice instance, not IPrimaryDevice, thus IPrimaryDevice
+    // "part" of a device can be destroyed before the streams.
+}
 
 // Methods from ::android::hardware::audio::CPP_VERSION::IDevice follow.
 Return<Result> PrimaryDevice::initCheck() {
@@ -160,6 +164,11 @@
     return mDevice->setConnectedState(address, connected);
 }
 #endif
+#if MAJOR_VERSION >= 6
+Return<Result> PrimaryDevice::close() {
+    return mDevice->close();
+}
+#endif
 
 // Methods from ::android::hardware::audio::CPP_VERSION::IPrimaryDevice follow.
 Return<Result> PrimaryDevice::setVoiceVolume(float volume) {
diff --git a/audio/core/all-versions/default/StreamIn.cpp b/audio/core/all-versions/default/StreamIn.cpp
index d316f83..f1152ca 100644
--- a/audio/core/all-versions/default/StreamIn.cpp
+++ b/audio/core/all-versions/default/StreamIn.cpp
@@ -139,8 +139,7 @@
 }  // namespace
 
 StreamIn::StreamIn(const sp<Device>& device, audio_stream_in_t* stream)
-    : mIsClosed(false),
-      mDevice(device),
+    : mDevice(device),
       mStream(stream),
       mStreamCommon(new Stream(&stream->common)),
       mStreamMmap(new StreamMmap<audio_stream_in_t>(stream)),
@@ -159,7 +158,9 @@
         status_t status = EventFlag::deleteEventFlag(&mEfGroup);
         ALOGE_IF(status, "read MQ event flag deletion error: %s", strerror(-status));
     }
+#if MAJOR_VERSION <= 5
     mDevice->closeInputStream(mStream);
+#endif
     mStream = nullptr;
 }
 
@@ -303,14 +304,16 @@
 }
 
 Return<Result> StreamIn::close() {
-    if (mIsClosed) return Result::INVALID_STATE;
-    mIsClosed = true;
-    if (mReadThread.get()) {
-        mStopReadThread.store(true, std::memory_order_release);
+    if (mStopReadThread.load(std::memory_order_relaxed)) {  // only this thread writes
+        return Result::INVALID_STATE;
     }
+    mStopReadThread.store(true, std::memory_order_release);
     if (mEfGroup) {
         mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
     }
+#if MAJOR_VERSION >= 6
+    mDevice->closeInputStream(mStream);
+#endif
     return Result::OK;
 }
 
diff --git a/audio/core/all-versions/default/StreamOut.cpp b/audio/core/all-versions/default/StreamOut.cpp
index 82cc408..396d354 100644
--- a/audio/core/all-versions/default/StreamOut.cpp
+++ b/audio/core/all-versions/default/StreamOut.cpp
@@ -138,8 +138,7 @@
 }  // namespace
 
 StreamOut::StreamOut(const sp<Device>& device, audio_stream_out_t* stream)
-    : mIsClosed(false),
-      mDevice(device),
+    : mDevice(device),
       mStream(stream),
       mStreamCommon(new Stream(&stream->common)),
       mStreamMmap(new StreamMmap<audio_stream_out_t>(stream)),
@@ -148,7 +147,7 @@
 
 StreamOut::~StreamOut() {
     ATRACE_CALL();
-    close();
+    (void)close();
     if (mWriteThread.get()) {
         ATRACE_NAME("mWriteThread->join");
         status_t status = mWriteThread->join();
@@ -159,10 +158,12 @@
         ALOGE_IF(status, "write MQ event flag deletion error: %s", strerror(-status));
     }
     mCallback.clear();
+#if MAJOR_VERSION <= 5
     mDevice->closeOutputStream(mStream);
     // Closing the output stream in the HAL waits for the callback to finish,
     // and joins the callback thread. Thus is it guaranteed that the callback
     // thread will not be accessing our object anymore.
+#endif
     mStream = nullptr;
 }
 
@@ -291,14 +292,16 @@
 #endif
 
 Return<Result> StreamOut::close() {
-    if (mIsClosed) return Result::INVALID_STATE;
-    mIsClosed = true;
-    if (mWriteThread.get()) {
-        mStopWriteThread.store(true, std::memory_order_release);
+    if (mStopWriteThread.load(std::memory_order_relaxed)) {  // only this thread writes
+        return Result::INVALID_STATE;
     }
+    mStopWriteThread.store(true, std::memory_order_release);
     if (mEfGroup) {
         mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
     }
+#if MAJOR_VERSION >= 6
+    mDevice->closeOutputStream(mStream);
+#endif
     return Result::OK;
 }
 
diff --git a/audio/core/all-versions/default/include/core/default/Device.h b/audio/core/all-versions/default/include/core/default/Device.h
index e64f00f..dc53a39 100644
--- a/audio/core/all-versions/default/include/core/default/Device.h
+++ b/audio/core/all-versions/default/include/core/default/Device.h
@@ -114,6 +114,9 @@
     Return<void> getMicrophones(getMicrophones_cb _hidl_cb) override;
     Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
 #endif
+#if MAJOR_VERSION >= 6
+    Return<Result> close() override;
+#endif
 
     Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
 
@@ -124,11 +127,14 @@
     void closeOutputStream(audio_stream_out_t* stream);
     audio_hw_device_t* device() const { return mDevice; }
 
-   private:
+  private:
+    bool mIsClosed;
     audio_hw_device_t* mDevice;
 
     virtual ~Device();
 
+    Result doClose();
+
     // Methods from ParametersUtil.
     char* halGetParameters(const char* keys) override;
     int halSetParameters(const char* keysAndValues) override;
diff --git a/audio/core/all-versions/default/include/core/default/PrimaryDevice.h b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
index 9d69cb0..f5f3848 100644
--- a/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
+++ b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
@@ -96,6 +96,9 @@
     Return<void> getMicrophones(getMicrophones_cb _hidl_cb) override;
     Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
 #endif
+#if MAJOR_VERSION >= 6
+    Return<Result> close() override;
+#endif
 
     Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
 
diff --git a/audio/core/all-versions/default/include/core/default/StreamIn.h b/audio/core/all-versions/default/include/core/default/StreamIn.h
index 6209b8f..24f9944 100644
--- a/audio/core/all-versions/default/include/core/default/StreamIn.h
+++ b/audio/core/all-versions/default/include/core/default/StreamIn.h
@@ -120,7 +120,6 @@
                                          uint64_t* time);
 
    private:
-    bool mIsClosed;
     const sp<Device> mDevice;
     audio_stream_in_t* mStream;
     const sp<Stream> mStreamCommon;
diff --git a/audio/core/all-versions/default/include/core/default/StreamOut.h b/audio/core/all-versions/default/include/core/default/StreamOut.h
index b098005..6334785 100644
--- a/audio/core/all-versions/default/include/core/default/StreamOut.h
+++ b/audio/core/all-versions/default/include/core/default/StreamOut.h
@@ -126,7 +126,6 @@
                                               TimeSpec* timeStamp);
 
    private:
-    bool mIsClosed;
     const sp<Device> mDevice;
     audio_stream_out_t* mStream;
     const sp<Stream> mStreamCommon;
diff --git a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
index e267a5e..81f963d 100644
--- a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
@@ -22,18 +22,16 @@
         GTEST_SKIP() << "No primary device on this factory";  // returns
     }
 
-    struct WaitExecutor {
-        ~WaitExecutor() { DeviceManager::waitForInstanceDestruction(); }
-    } waitExecutor;  // Make sure we wait for the device destruction on exiting from the test.
-    Result result;
-    sp<IDevice> baseDevice;
-    ASSERT_OK(getDevicesFactory()->openDevice("primary", returnIn(result, baseDevice)));
-    ASSERT_OK(result);
-    ASSERT_TRUE(baseDevice != nullptr);
-
-    Return<sp<IPrimaryDevice>> primaryDevice = IPrimaryDevice::castFrom(baseDevice);
-    ASSERT_TRUE(primaryDevice.isOk());
-    ASSERT_TRUE(sp<IPrimaryDevice>(primaryDevice) != nullptr);
+    {  // Scope for device SPs
+        sp<IDevice> baseDevice =
+                DeviceManager::getInstance().get(getFactoryName(), DeviceManager::kPrimaryDevice);
+        ASSERT_TRUE(baseDevice != nullptr);
+        Return<sp<IPrimaryDevice>> primaryDevice = IPrimaryDevice::castFrom(baseDevice);
+        EXPECT_TRUE(primaryDevice.isOk());
+        EXPECT_TRUE(sp<IPrimaryDevice>(primaryDevice) != nullptr);
+    }
+    EXPECT_TRUE(
+            DeviceManager::getInstance().reset(getFactoryName(), DeviceManager::kPrimaryDevice));
 }
 
 //////////////////////////////////////////////////////////////////////////////
@@ -113,10 +111,12 @@
                 ASSERT_NE(0U, activeMicrophones.size());
             }
             stream->close();
+#if MAJOR_VERSION <= 5
             // Workaround for b/139329877. Ensures the stream gets closed on the audio hal side.
             stream.clear();
             IPCThreadState::self()->flushCommands();
             usleep(1000);
+#endif
             if (efGroup) {
                 EventFlag::deleteEventFlag(&efGroup);
             }
diff --git a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
index 30f8a7a..7e931ff 100644
--- a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
@@ -100,7 +100,8 @@
                             special = true;
                         }
                         if ((flags & AUDIO_OUTPUT_FLAG_DIRECT) &&
-                            !(flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC)) {
+                            !(flags &
+                              (AUDIO_OUTPUT_FLAG_HW_AV_SYNC | AUDIO_OUTPUT_FLAG_MMAP_NOIRQ))) {
                             result.emplace_back(device, config,
                                                 AudioOutputFlag(AUDIO_OUTPUT_FLAG_DIRECT));
                             special = true;
diff --git a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
index 468f9b2..6fc9339 100644
--- a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
+++ b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
@@ -58,7 +58,6 @@
 
 #include "utility/AssertOk.h"
 #include "utility/Documentation.h"
-#include "utility/PrettyPrintAudioTypes.h"
 #include "utility/ReturnIn.h"
 #include "utility/ValidateXml.h"
 
@@ -860,6 +859,7 @@
     }
 
     static void waitForStreamDestruction() {
+#if MAJOR_VERSION <= 5
         // FIXME: there is no way to know when the remote IStream is being destroyed
         //        Binder does not support testing if an object is alive, thus
         //        wait for 100ms to let the binder destruction propagates and
@@ -868,6 +868,7 @@
         //        the latency between local and remote destruction.
         IPCThreadState::self()->flushCommands();
         usleep(100 * 1000);
+#endif
     }
 
   private:
@@ -1202,19 +1203,17 @@
         waitForStreamDestruction())
 // clang-format on
 
-static void testCreateTooBigMmapBuffer(IStream* stream) {
-    MmapBufferInfo info;
-    Result res;
-    // Assume that int max is a value too big to be allocated
-    // This is true currently with a 32bit media server, but might not when it
-    // will run in 64 bit
-    auto minSizeFrames = std::numeric_limits<int32_t>::max();
-    ASSERT_OK(stream->createMmapBuffer(minSizeFrames, returnIn(res, info)));
-    ASSERT_RESULT(invalidArgsOrNotSupported, res);
+static void testMmapBufferOfInvalidSize(IStream* stream) {
+    for (int32_t value : {-1, 0, std::numeric_limits<int32_t>::max()}) {
+        MmapBufferInfo info;
+        Result res;
+        EXPECT_OK(stream->createMmapBuffer(value, returnIn(res, info)));
+        EXPECT_RESULT(invalidArgsOrNotSupported, res) << "value=" << value;
+    }
 }
 
-TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer too big should fail",
-               testCreateTooBigMmapBuffer(stream.get()))
+TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer of invalid size must fail",
+               testMmapBufferOfInvalidSize(stream.get()))
 
 static void testGetMmapPositionOfNonMmapedStream(IStream* stream) {
     Result res;
diff --git a/audio/core/all-versions/vts/functional/DeviceManager.h b/audio/core/all-versions/vts/functional/DeviceManager.h
index b6e2db0..d849f85 100644
--- a/audio/core/all-versions/vts/functional/DeviceManager.h
+++ b/audio/core/all-versions/vts/functional/DeviceManager.h
@@ -22,25 +22,33 @@
 template <class Derived, class Key, class Interface>
 class InterfaceManager {
   public:
+    sp<Interface> getExisting(const Key& name) {
+        auto existing = instances.find(name);
+        return existing != instances.end() ? existing->second : sp<Interface>();
+    }
+
     sp<Interface> get(const Key& name) {
         auto existing = instances.find(name);
         if (existing != instances.end()) return existing->second;
         auto [inserted, _] = instances.emplace(name, Derived::createInterfaceInstance(name));
         if (inserted->second) {
-            environment->registerTearDown([name]() { (void)Derived::getInstance().reset(name); });
+            environment->registerTearDown(
+                    [name]() { (void)Derived::getInstance().reset(name, false); });
         }
         return inserted->second;
     }
 
     // The test must check that reset was successful. Reset failure means that the test code
     // is holding a strong reference to the device.
-    bool reset(const Key& name) __attribute__((warn_unused_result)) {
+    bool reset(const Key& name, bool waitForDestruction) __attribute__((warn_unused_result)) {
         auto iter = instances.find(name);
         if (iter == instances.end()) return true;
         ::android::wp<Interface> weak = iter->second;
         instances.erase(iter);
         if (weak.promote() != nullptr) return false;
-        waitForInstanceDestruction();
+        if (waitForDestruction) {
+            waitForInstanceDestruction();
+        }
         return true;
     }
 
@@ -100,7 +108,15 @@
     }
     bool reset(const std::string& factoryName, const std::string& name)
             __attribute__((warn_unused_result)) {
-        return InterfaceManager::reset(std::make_tuple(factoryName, name));
+#if MAJOR_VERSION <= 5
+        return InterfaceManager::reset(std::make_tuple(factoryName, name), true);
+#elif MAJOR_VERSION >= 6
+        {
+            sp<IDevice> device = getExisting(std::make_tuple(factoryName, name));
+            if (device != nullptr) device->close();
+        }
+        return InterfaceManager::reset(std::make_tuple(factoryName, name), false);
+#endif
     }
     bool resetPrimary(const std::string& factoryName) __attribute__((warn_unused_result)) {
         return reset(factoryName, kPrimaryDevice);
diff --git a/audio/effect/6.0/IEffect.hal b/audio/effect/6.0/IEffect.hal
index b35afee..f4c50a2 100644
--- a/audio/effect/6.0/IEffect.hal
+++ b/audio/effect/6.0/IEffect.hal
@@ -407,9 +407,12 @@
 
     /**
      * Called by the framework to deinitialize the effect and free up
-     * all the currently allocated resources. It is recommended to close
+     * all currently allocated resources. It is recommended to close
      * the effect on the client side as soon as it is becomes unused.
      *
+     * The client must ensure that this function is not called while
+     * audio data is being transferred through the effect's message queues.
+     *
      * @return retval OK in case the success.
      *                INVALID_STATE if the effect was already closed.
      */
diff --git a/audio/effect/all-versions/default/Effect.cpp b/audio/effect/all-versions/default/Effect.cpp
index 3c0d878..e11e123 100644
--- a/audio/effect/all-versions/default/Effect.cpp
+++ b/audio/effect/all-versions/default/Effect.cpp
@@ -138,11 +138,11 @@
 const char* Effect::sContextCallFunction = sContextCallToCommand;
 
 Effect::Effect(effect_handle_t handle)
-    : mIsClosed(false), mHandle(handle), mEfGroup(nullptr), mStopProcessThread(false) {}
+    : mHandle(handle), mEfGroup(nullptr), mStopProcessThread(false) {}
 
 Effect::~Effect() {
     ATRACE_CALL();
-    close();
+    (void)close();
     if (mProcessThread.get()) {
         ATRACE_NAME("mProcessThread->join");
         status_t status = mProcessThread->join();
@@ -154,8 +154,10 @@
     }
     mInBuffer.clear();
     mOutBuffer.clear();
+#if MAJOR_VERSION <= 5
     int status = EffectRelease(mHandle);
     ALOGW_IF(status, "Error releasing effect %p: %s", mHandle, strerror(-status));
+#endif
     EffectMap::getInstance().remove(mHandle);
     mHandle = 0;
 }
@@ -305,12 +307,11 @@
 Result Effect::getCurrentConfigImpl(uint32_t featureId, uint32_t configSize,
                                     GetCurrentConfigSuccessCallback onSuccess) {
     uint32_t halCmd = featureId;
-    uint32_t halResult[alignedSizeIn<uint32_t>(sizeof(uint32_t) + configSize)];
-    memset(halResult, 0, sizeof(halResult));
+    std::vector<uint32_t> halResult(alignedSizeIn<uint32_t>(sizeof(uint32_t) + configSize), 0);
     uint32_t halResultSize = 0;
-    return sendCommandReturningStatusAndData(EFFECT_CMD_GET_FEATURE_CONFIG, "GET_FEATURE_CONFIG",
-                                             sizeof(uint32_t), &halCmd, &halResultSize, halResult,
-                                             sizeof(uint32_t), [&] { onSuccess(&halResult[1]); });
+    return sendCommandReturningStatusAndData(
+            EFFECT_CMD_GET_FEATURE_CONFIG, "GET_FEATURE_CONFIG", sizeof(uint32_t), &halCmd,
+            &halResultSize, &halResult[0], sizeof(uint32_t), [&] { onSuccess(&halResult[1]); });
 }
 
 Result Effect::getParameterImpl(uint32_t paramSize, const void* paramData,
@@ -337,8 +338,7 @@
                                        GetSupportedConfigsSuccessCallback onSuccess) {
     uint32_t halCmd[2] = {featureId, maxConfigs};
     uint32_t halResultSize = 2 * sizeof(uint32_t) + maxConfigs * sizeof(configSize);
-    uint8_t halResult[halResultSize];
-    memset(&halResult[0], 0, halResultSize);
+    std::vector<uint8_t> halResult(static_cast<size_t>(halResultSize), 0);
     return sendCommandReturningStatusAndData(
         EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS, "GET_FEATURE_SUPPORTED_CONFIGS", sizeof(halCmd),
         halCmd, &halResultSize, &halResult[0], 2 * sizeof(uint32_t), [&] {
@@ -517,9 +517,9 @@
     uint32_t halDataSize;
     std::unique_ptr<uint8_t[]> halData = hidlVecToHal(volumes, &halDataSize);
     uint32_t halResultSize = halDataSize;
-    uint32_t halResult[volumes.size()];
+    std::vector<uint32_t> halResult(volumes.size(), 0);
     Result retval = sendCommandReturningData(EFFECT_CMD_SET_VOLUME, "SET_VOLUME", halDataSize,
-                                             &halData[0], &halResultSize, halResult);
+                                             &halData[0], &halResultSize, &halResult[0]);
     hidl_vec<uint32_t> result;
     if (retval == Result::OK) {
         result.setToExternal(&halResult[0], halResultSize);
@@ -579,8 +579,6 @@
 }
 
 Return<void> Effect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
-    uint32_t halResult[alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t))];
-    memset(halResult, 0, sizeof(halResult));
     EffectAuxChannelsConfig result;
     Result retval = getCurrentConfigImpl(
         EFFECT_FEATURE_AUX_CHANNELS, sizeof(channel_config_t), [&](void* configData) {
@@ -592,11 +590,12 @@
 }
 
 Return<Result> Effect::setAuxChannelsConfig(const EffectAuxChannelsConfig& config) {
-    uint32_t halCmd[alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t))];
+    std::vector<uint32_t> halCmd(
+            alignedSizeIn<uint32_t>(sizeof(uint32_t) + sizeof(channel_config_t)), 0);
     halCmd[0] = EFFECT_FEATURE_AUX_CHANNELS;
     effectAuxChannelsConfigToHal(config, reinterpret_cast<channel_config_t*>(&halCmd[1]));
     return sendCommandReturningStatus(EFFECT_CMD_SET_FEATURE_CONFIG,
-                                      "SET_FEATURE_CONFIG AUX_CHANNELS", sizeof(halCmd), halCmd);
+                                      "SET_FEATURE_CONFIG AUX_CHANNELS", halCmd.size(), &halCmd[0]);
 }
 
 Return<Result> Effect::setAudioSource(AudioSource source) {
@@ -690,24 +689,28 @@
 
 Return<Result> Effect::setCurrentConfigForFeature(uint32_t featureId,
                                                   const hidl_vec<uint8_t>& configData) {
-    uint32_t halCmd[alignedSizeIn<uint32_t>(sizeof(uint32_t) + configData.size())];
-    memset(halCmd, 0, sizeof(halCmd));
+    std::vector<uint32_t> halCmd(alignedSizeIn<uint32_t>(sizeof(uint32_t) + configData.size()), 0);
     halCmd[0] = featureId;
     memcpy(&halCmd[1], &configData[0], configData.size());
     return sendCommandReturningStatus(EFFECT_CMD_SET_FEATURE_CONFIG, "SET_FEATURE_CONFIG",
-                                      sizeof(halCmd), halCmd);
+                                      halCmd.size(), &halCmd[0]);
 }
 
 Return<Result> Effect::close() {
-    if (mIsClosed) return Result::INVALID_STATE;
-    mIsClosed = true;
-    if (mProcessThread.get()) {
-        mStopProcessThread.store(true, std::memory_order_release);
+    if (mStopProcessThread.load(std::memory_order_relaxed)) {  // only this thread modifies
+        return Result::INVALID_STATE;
     }
+    mStopProcessThread.store(true, std::memory_order_release);
     if (mEfGroup) {
         mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_QUIT));
     }
+#if MAJOR_VERSION <= 5
     return Result::OK;
+#elif MAJOR_VERSION >= 6
+    // No need to join the processing thread, it is part of the API contract that the client
+    // must finish processing before closing the effect.
+    return analyzeStatus("EffectRelease", "", sContextCallFunction, EffectRelease(mHandle));
+#endif
 }
 
 Return<void> Effect::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /* options */) {
diff --git a/audio/effect/all-versions/default/Effect.h b/audio/effect/all-versions/default/Effect.h
index 3d99a0e..181e542 100644
--- a/audio/effect/all-versions/default/Effect.h
+++ b/audio/effect/all-versions/default/Effect.h
@@ -170,7 +170,6 @@
     static const char* sContextCallToCommand;
     static const char* sContextCallFunction;
 
-    bool mIsClosed;
     effect_handle_t mHandle;
     sp<AudioBufferWrapper> mInBuffer;
     sp<AudioBufferWrapper> mOutBuffer;
diff --git a/automotive/audiocontrol/1.0/default/Android.bp b/automotive/audiocontrol/1.0/default/Android.bp
index 314830b..3d04c89 100644
--- a/automotive/audiocontrol/1.0/default/Android.bp
+++ b/automotive/audiocontrol/1.0/default/Android.bp
@@ -29,7 +29,7 @@
         "liblog",
         "libutils",
     ],
-
+    vintf_fragments: ["audiocontrol_manifest.xml"],
     cflags: [
         "-DLOG_TAG=\"AudCntrlDrv\"",
         "-O0",
diff --git a/automotive/audiocontrol/1.0/default/audiocontrol_manifest.xml b/automotive/audiocontrol/1.0/default/audiocontrol_manifest.xml
new file mode 100644
index 0000000..0981eb7
--- /dev/null
+++ b/automotive/audiocontrol/1.0/default/audiocontrol_manifest.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.automotive.audiocontrol</name>
+        <transport>hwbinder</transport>
+        <version>1.0</version>
+        <interface>
+            <name>IAudioControl</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
\ No newline at end of file
diff --git a/automotive/vehicle/2.0/default/Android.bp b/automotive/vehicle/2.0/default/Android.bp
index ed09859..f9c25d1 100644
--- a/automotive/vehicle/2.0/default/Android.bp
+++ b/automotive/vehicle/2.0/default/Android.bp
@@ -58,6 +58,7 @@
     defaults: ["vhal_v2_0_defaults"],
     srcs: [
         "impl/vhal_v2_0/CommConn.cpp",
+        "impl/vhal_v2_0/EmulatedVehicleConnector.cpp",
         "impl/vhal_v2_0/EmulatedVehicleHal.cpp",
         "impl/vhal_v2_0/VehicleEmulator.cpp",
         "impl/vhal_v2_0/PipeComm.cpp",
diff --git a/automotive/vehicle/2.0/default/VehicleService.cpp b/automotive/vehicle/2.0/default/VehicleService.cpp
index d1fd555..127eb98 100644
--- a/automotive/vehicle/2.0/default/VehicleService.cpp
+++ b/automotive/vehicle/2.0/default/VehicleService.cpp
@@ -20,8 +20,9 @@
 
 #include <iostream>
 
-#include <vhal_v2_0/VehicleHalManager.h>
+#include <vhal_v2_0/EmulatedVehicleConnector.h>
 #include <vhal_v2_0/EmulatedVehicleHal.h>
+#include <vhal_v2_0/VehicleHalManager.h>
 
 using namespace android;
 using namespace android::hardware;
@@ -29,9 +30,11 @@
 
 int main(int /* argc */, char* /* argv */ []) {
     auto store = std::make_unique<VehiclePropertyStore>();
-    auto hal = std::make_unique<impl::EmulatedVehicleHal>(store.get());
+    auto connector = impl::makeEmulatedPassthroughConnector();
+    auto hal = std::make_unique<impl::EmulatedVehicleHal>(store.get(), connector.get());
     auto emulator = std::make_unique<impl::VehicleEmulator>(hal.get());
     auto service = std::make_unique<VehicleHalManager>(hal.get());
+    connector->setValuePool(hal->getValuePool());
 
     configureRpcThreadpool(4, true /* callerWillJoin */);
 
diff --git a/automotive/vehicle/2.0/default/common/include/vhal_v2_0/VmsUtils.h b/automotive/vehicle/2.0/default/common/include/vhal_v2_0/VmsUtils.h
index 8ee3c54..f8b10ca 100644
--- a/automotive/vehicle/2.0/default/common/include/vhal_v2_0/VmsUtils.h
+++ b/automotive/vehicle/2.0/default/common/include/vhal_v2_0/VmsUtils.h
@@ -61,7 +61,7 @@
 
 struct VmsLayerAndPublisher {
     VmsLayerAndPublisher(VmsLayer layer, int publisher_id)
-        : layer(layer), publisher_id(publisher_id) {}
+        : layer(std::move(layer)), publisher_id(publisher_id) {}
     VmsLayer layer;
     int publisher_id;
 };
@@ -69,6 +69,8 @@
 // A VmsAssociatedLayer is used by subscribers to specify which publisher IDs
 // are acceptable for a given layer.
 struct VmsAssociatedLayer {
+    VmsAssociatedLayer(VmsLayer layer, std::vector<int> publisher_ids)
+        : layer(std::move(layer)), publisher_ids(std::move(publisher_ids)) {}
     VmsLayer layer;
     std::vector<int> publisher_ids;
 };
@@ -77,7 +79,7 @@
 // its dependencies. Dependencies can be empty.
 struct VmsLayerOffering {
     VmsLayerOffering(VmsLayer layer, std::vector<VmsLayer> dependencies)
-        : layer(layer), dependencies(dependencies) {}
+        : layer(std::move(layer)), dependencies(std::move(dependencies)) {}
     VmsLayerOffering(VmsLayer layer) : layer(layer), dependencies() {}
     VmsLayer layer;
     std::vector<VmsLayer> dependencies;
@@ -87,7 +89,7 @@
 // with the specified publisher ID.
 struct VmsOffers {
     VmsOffers(int publisher_id, std::vector<VmsLayerOffering> offerings)
-        : publisher_id(publisher_id), offerings(offerings) {}
+        : publisher_id(publisher_id), offerings(std::move(offerings)) {}
     int publisher_id;
     std::vector<VmsLayerOffering> offerings;
 };
@@ -231,6 +233,24 @@
                                           const int current_service_id, const int current_client_id,
                                           int* new_service_id);
 
+// Returns true if the new sequence number of the availability state message is greater than
+// the last seen availability sequence number.
+bool isAvailabilitySequenceNumberNewer(const VehiclePropValue& availability_state,
+                                       const int last_seen_availability_sequence_number);
+
+// Returns sequence number of the availability state message.
+int32_t getSequenceNumberForAvailabilityState(const VehiclePropValue& availability_state);
+
+// Takes a availability state message and returns the associated layers that are
+// available to publish data.
+//
+// A subscriber can use this function when receiving an availability response or availability
+// change message to determine which associated layers are ready to publish data.
+// The caller of this function can optionally decide to not consume these layers
+// if the availability change has the sequence number less than the last seen
+// sequence number.
+std::vector<VmsAssociatedLayer> getAvailableLayers(const VehiclePropValue& availability_state);
+
 }  // namespace vms
 }  // namespace V2_0
 }  // namespace vehicle
diff --git a/automotive/vehicle/2.0/default/common/src/VmsUtils.cpp b/automotive/vehicle/2.0/default/common/src/VmsUtils.cpp
index 9eba905..a65cded 100644
--- a/automotive/vehicle/2.0/default/common/src/VmsUtils.cpp
+++ b/automotive/vehicle/2.0/default/common/src/VmsUtils.cpp
@@ -219,12 +219,9 @@
     if (isValidVmsMessage(subscriptions_state) &&
         (parseMessageType(subscriptions_state) == VmsMessageType::SUBSCRIPTIONS_CHANGE ||
          parseMessageType(subscriptions_state) == VmsMessageType::SUBSCRIPTIONS_RESPONSE) &&
-        subscriptions_state.value.int32Values.size() > kSubscriptionStateSequenceNumberIndex) {
-        const int32_t num_of_layers = subscriptions_state.value.int32Values[toInt(
-                VmsSubscriptionsStateIntegerValuesIndex::NUMBER_OF_LAYERS)];
-        const int32_t num_of_associated_layers = subscriptions_state.value.int32Values[toInt(
-                VmsSubscriptionsStateIntegerValuesIndex ::NUMBER_OF_ASSOCIATED_LAYERS)];
-
+        subscriptions_state.value.int32Values.size() >
+                toInt(VmsSubscriptionsStateIntegerValuesIndex::NUMBER_OF_LAYERS)) {
+        int subscriptions_state_int_size = subscriptions_state.value.int32Values.size();
         std::unordered_set<VmsLayer, VmsLayer::VmsLayerHashFunction> offered_layers;
         for (const auto& offer : offers.offerings) {
             offered_layers.insert(offer.layer);
@@ -232,33 +229,52 @@
         std::vector<VmsLayer> subscribed_layers;
 
         int current_index = toInt(VmsSubscriptionsStateIntegerValuesIndex::SUBSCRIPTIONS_START);
+
         // Add all subscribed layers which are offered by the current publisher.
+        const int32_t num_of_layers = subscriptions_state.value.int32Values[toInt(
+                VmsSubscriptionsStateIntegerValuesIndex::NUMBER_OF_LAYERS)];
         for (int i = 0; i < num_of_layers; i++) {
+            if (subscriptions_state_int_size < current_index + kLayerSize) {
+                return {};
+            }
             VmsLayer layer = VmsLayer(subscriptions_state.value.int32Values[current_index],
                                       subscriptions_state.value.int32Values[current_index + 1],
                                       subscriptions_state.value.int32Values[current_index + 2]);
             if (offered_layers.find(layer) != offered_layers.end()) {
-                subscribed_layers.push_back(layer);
+                subscribed_layers.push_back(std::move(layer));
             }
             current_index += kLayerSize;
         }
+
         // Add all subscribed associated layers which are offered by the current publisher.
         // For this, we need to check if the associated layer has a publisher ID which is
         // same as that of the current publisher.
-        for (int i = 0; i < num_of_associated_layers; i++) {
-            VmsLayer layer = VmsLayer(subscriptions_state.value.int32Values[current_index],
-                                      subscriptions_state.value.int32Values[current_index + 1],
-                                      subscriptions_state.value.int32Values[current_index + 2]);
-            current_index += kLayerSize;
-            if (offered_layers.find(layer) != offered_layers.end()) {
-                int32_t num_of_publisher_ids = subscriptions_state.value.int32Values[current_index];
-                current_index++;
-                for (int j = 0; j < num_of_publisher_ids; j++) {
-                    if (subscriptions_state.value.int32Values[current_index] ==
-                        offers.publisher_id) {
-                        subscribed_layers.push_back(layer);
-                    }
+        if (subscriptions_state_int_size >
+            toInt(VmsSubscriptionsStateIntegerValuesIndex::NUMBER_OF_ASSOCIATED_LAYERS)) {
+            const int32_t num_of_associated_layers = subscriptions_state.value.int32Values[toInt(
+                    VmsSubscriptionsStateIntegerValuesIndex::NUMBER_OF_ASSOCIATED_LAYERS)];
+
+            for (int i = 0; i < num_of_associated_layers; i++) {
+                if (subscriptions_state_int_size < current_index + kLayerSize) {
+                    return {};
+                }
+                VmsLayer layer = VmsLayer(subscriptions_state.value.int32Values[current_index],
+                                          subscriptions_state.value.int32Values[current_index + 1],
+                                          subscriptions_state.value.int32Values[current_index + 2]);
+                current_index += kLayerSize;
+                if (offered_layers.find(layer) != offered_layers.end() &&
+                    subscriptions_state_int_size > current_index) {
+                    int32_t num_of_publisher_ids =
+                            subscriptions_state.value.int32Values[current_index];
                     current_index++;
+                    for (int j = 0; j < num_of_publisher_ids; j++) {
+                        if (subscriptions_state_int_size > current_index &&
+                            subscriptions_state.value.int32Values[current_index] ==
+                                    offers.publisher_id) {
+                            subscribed_layers.push_back(std::move(layer));
+                        }
+                        current_index++;
+                    }
                 }
             }
         }
@@ -300,6 +316,64 @@
     return VmsSessionStatus::kInvalidMessage;
 }
 
+bool isAvailabilitySequenceNumberNewer(const VehiclePropValue& availability_state,
+                                       const int last_seen_availability_sequence_number) {
+    return (isValidVmsMessage(availability_state) &&
+            (parseMessageType(availability_state) == VmsMessageType::AVAILABILITY_CHANGE ||
+             parseMessageType(availability_state) == VmsMessageType::AVAILABILITY_RESPONSE) &&
+            availability_state.value.int32Values.size() > kAvailabilitySequenceNumberIndex &&
+            availability_state.value.int32Values[kAvailabilitySequenceNumberIndex] >
+                    last_seen_availability_sequence_number);
+}
+
+int32_t getSequenceNumberForAvailabilityState(const VehiclePropValue& availability_state) {
+    if (isValidVmsMessage(availability_state) &&
+        (parseMessageType(availability_state) == VmsMessageType::AVAILABILITY_CHANGE ||
+         parseMessageType(availability_state) == VmsMessageType::AVAILABILITY_RESPONSE) &&
+        availability_state.value.int32Values.size() > kAvailabilitySequenceNumberIndex) {
+        return availability_state.value.int32Values[kAvailabilitySequenceNumberIndex];
+    }
+    return -1;
+}
+
+std::vector<VmsAssociatedLayer> getAvailableLayers(const VehiclePropValue& availability_state) {
+    if (isValidVmsMessage(availability_state) &&
+        (parseMessageType(availability_state) == VmsMessageType::AVAILABILITY_CHANGE ||
+         parseMessageType(availability_state) == VmsMessageType::AVAILABILITY_RESPONSE) &&
+        availability_state.value.int32Values.size() >
+                toInt(VmsAvailabilityStateIntegerValuesIndex::NUMBER_OF_ASSOCIATED_LAYERS)) {
+        int availability_state_int_size = availability_state.value.int32Values.size();
+        const int32_t num_of_associated_layers = availability_state.value.int32Values[toInt(
+                VmsAvailabilityStateIntegerValuesIndex::NUMBER_OF_ASSOCIATED_LAYERS)];
+        int current_index = toInt(VmsAvailabilityStateIntegerValuesIndex::LAYERS_START);
+        std::vector<VmsAssociatedLayer> available_layers;
+        for (int i = 0; i < num_of_associated_layers; i++) {
+            if (availability_state_int_size < current_index + kLayerSize) {
+                return {};
+            }
+            VmsLayer layer = VmsLayer(availability_state.value.int32Values[current_index],
+                                      availability_state.value.int32Values[current_index + 1],
+                                      availability_state.value.int32Values[current_index + 2]);
+            current_index += kLayerSize;
+            std::vector<int> publisher_ids;
+            if (availability_state_int_size > current_index) {
+                int32_t num_of_publisher_ids = availability_state.value.int32Values[current_index];
+                current_index++;
+                for (int j = 0; j < num_of_publisher_ids; j++) {
+                    if (availability_state_int_size > current_index) {
+                        publisher_ids.push_back(
+                                availability_state.value.int32Values[current_index]);
+                        current_index++;
+                    }
+                }
+            }
+            available_layers.emplace_back(layer, std::move(publisher_ids));
+        }
+        return available_layers;
+    }
+    return {};
+}
+
 }  // namespace vms
 }  // namespace V2_0
 }  // namespace vehicle
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
index f41b33c..2dbcbba 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
@@ -948,6 +948,24 @@
                     .access = VehiclePropertyAccess::READ_WRITE,
                     .changeMode = VehiclePropertyChangeMode::ON_CHANGE},
          .initialValue = {.stringValue = "Vendor String Property"}},
+
+        {.config =
+                 {
+                         .prop = toInt(VehicleProperty::SUPPORT_CUSTOMIZE_VENDOR_PERMISSION),
+                         .access = VehiclePropertyAccess::READ_WRITE,
+                         .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                         .configArray =
+                                 {kMixedTypePropertyForTest,
+                                  (int)VehicleVendorPermission::PERMISSION_GET_VENDOR_CATEGORY_INFO,
+                                  (int)VehicleVendorPermission::PERMISSION_SET_VENDOR_CATEGORY_INFO,
+                                  VENDOR_EXTENSION_INT_PROPERTY,
+                                  (int)VehicleVendorPermission::PERMISSION_GET_VENDOR_CATEGORY_SEAT,
+                                  (int)VehicleVendorPermission::PERMISSION_NOT_ACCESSIBLE,
+                                  VENDOR_EXTENSION_FLOAT_PROPERTY,
+                                  (int)VehicleVendorPermission::PERMISSION_DEFAULT,
+                                  (int)VehicleVendorPermission::PERMISSION_DEFAULT},
+                 },
+         .initialValue = {.int32Values = {1}}},
 };
 
 }  // impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp
new file mode 100644
index 0000000..168999d
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp
@@ -0,0 +1,254 @@
+/*
+ * 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 <android-base/logging.h>
+#include <utils/SystemClock.h>
+
+#include "DefaultConfig.h"
+#include "EmulatedVehicleConnector.h"
+#include "JsonFakeValueGenerator.h"
+#include "LinearFakeValueGenerator.h"
+#include "Obd2SensorStore.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+void EmulatedVehicleClient::onPropertyValue(const VehiclePropValue& value) {
+    if (!mPropCallback) {
+        LOG(ERROR) << __func__ << ": PropertyCallBackType is not registered!";
+        return;
+    }
+    return mPropCallback(value);
+}
+
+void EmulatedVehicleClient::registerPropertyValueCallback(PropertyCallBackType&& callback) {
+    if (mPropCallback) {
+        LOG(ERROR) << __func__ << ": Cannot register multiple callbacks!";
+        return;
+    }
+    mPropCallback = std::move(callback);
+}
+
+GeneratorHub* EmulatedVehicleServer::getGenerator() {
+    return &mGeneratorHub;
+}
+
+VehiclePropValuePool* EmulatedVehicleServer::getValuePool() const {
+    if (!mValuePool) {
+        LOG(WARNING) << __func__ << ": Value pool not set!";
+    }
+    return mValuePool;
+}
+
+void EmulatedVehicleServer::setValuePool(VehiclePropValuePool* valuePool) {
+    if (!valuePool) {
+        LOG(WARNING) <<  __func__ << ": Setting value pool to nullptr!";
+    }
+    mValuePool = valuePool;
+}
+
+void EmulatedVehicleServer::onFakeValueGenerated(const VehiclePropValue& value) {
+    LOG(DEBUG) << __func__ << ": " << toString(value);
+    auto updatedPropValue = getValuePool()->obtain(value);
+    if (updatedPropValue) {
+        updatedPropValue->timestamp = value.timestamp;
+        updatedPropValue->status = VehiclePropertyStatus::AVAILABLE;
+        onPropertyValueFromCar(*updatedPropValue);
+    }
+}
+
+std::vector<VehiclePropConfig> EmulatedVehicleServer::onGetAllPropertyConfig() const {
+    std::vector<VehiclePropConfig> vehiclePropConfigs;
+    constexpr size_t numOfVehiclePropConfigs =
+            sizeof(kVehicleProperties) / sizeof(kVehicleProperties[0]);
+    vehiclePropConfigs.reserve(numOfVehiclePropConfigs);
+    for (auto& it : kVehicleProperties) {
+        vehiclePropConfigs.emplace_back(it.config);
+    }
+    return vehiclePropConfigs;
+}
+
+StatusCode EmulatedVehicleServer::handleGenerateFakeDataRequest(const VehiclePropValue& request) {
+    LOG(INFO) << __func__;
+    const auto& v = request.value;
+    if (!v.int32Values.size()) {
+        LOG(ERROR) << __func__ << ": expected at least \"command\" field in int32Values";
+        return StatusCode::INVALID_ARG;
+    }
+
+    FakeDataCommand command = static_cast<FakeDataCommand>(v.int32Values[0]);
+
+    switch (command) {
+        case FakeDataCommand::StartLinear: {
+            LOG(INFO) << __func__ << ", FakeDataCommand::StartLinear";
+            if (v.int32Values.size() < 2) {
+                LOG(ERROR) << __func__ << ": expected property ID in int32Values";
+                return StatusCode::INVALID_ARG;
+            }
+            if (!v.int64Values.size()) {
+                LOG(ERROR) << __func__ << ": interval is not provided in int64Values";
+                return StatusCode::INVALID_ARG;
+            }
+            if (v.floatValues.size() < 3) {
+                LOG(ERROR) << __func__ << ": expected at least 3 elements in floatValues, got: "
+                      << v.floatValues.size();
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = v.int32Values[1];
+            getGenerator()->registerGenerator(cookie,
+                                              std::make_unique<LinearFakeValueGenerator>(request));
+            break;
+        }
+        case FakeDataCommand::StartJson: {
+            LOG(INFO) << __func__ << ", FakeDataCommand::StartJson";
+            if (v.stringValue.empty()) {
+                LOG(ERROR) << __func__ << ": path to JSON file is missing";
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = std::hash<std::string>()(v.stringValue);
+            getGenerator()->registerGenerator(cookie,
+                                              std::make_unique<JsonFakeValueGenerator>(request));
+            break;
+        }
+        case FakeDataCommand::StopLinear: {
+            LOG(INFO) << __func__ << ", FakeDataCommand::StopLinear";
+            if (v.int32Values.size() < 2) {
+                LOG(ERROR) << __func__ << ": expected property ID in int32Values";
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = v.int32Values[1];
+            getGenerator()->unregisterGenerator(cookie);
+            break;
+        }
+        case FakeDataCommand::StopJson: {
+            LOG(INFO) << __func__ << ", FakeDataCommand::StopJson";
+            if (v.stringValue.empty()) {
+                LOG(ERROR) << __func__ << ": path to JSON file is missing";
+                return StatusCode::INVALID_ARG;
+            }
+            int32_t cookie = std::hash<std::string>()(v.stringValue);
+            getGenerator()->unregisterGenerator(cookie);
+            break;
+        }
+        case FakeDataCommand::KeyPress: {
+            LOG(INFO) << __func__ << ", FakeDataCommand::KeyPress";
+            int32_t keyCode = request.value.int32Values[2];
+            int32_t display = request.value.int32Values[3];
+            // Send back to HAL
+            onPropertyValueFromCar(
+                    *createHwInputKeyProp(VehicleHwKeyInputAction::ACTION_DOWN, keyCode, display));
+            onPropertyValueFromCar(
+                    *createHwInputKeyProp(VehicleHwKeyInputAction::ACTION_UP, keyCode, display));
+            break;
+        }
+        default: {
+            LOG(ERROR) << __func__ << ": unexpected command: " << toInt(command);
+            return StatusCode::INVALID_ARG;
+        }
+    }
+    return StatusCode::OK;
+}
+
+VehicleHal::VehiclePropValuePtr EmulatedVehicleServer::createApPowerStateReq(
+    VehicleApPowerStateReq state, int32_t param) {
+    auto req = getValuePool()->obtain(VehiclePropertyType::INT32_VEC, 2);
+    req->prop = toInt(VehicleProperty::AP_POWER_STATE_REQ);
+    req->areaId = 0;
+    req->timestamp = elapsedRealtimeNano();
+    req->status = VehiclePropertyStatus::AVAILABLE;
+    req->value.int32Values[0] = toInt(state);
+    req->value.int32Values[1] = param;
+    return req;
+}
+
+VehicleHal::VehiclePropValuePtr EmulatedVehicleServer::createHwInputKeyProp(
+        VehicleHwKeyInputAction action, int32_t keyCode, int32_t targetDisplay) {
+    auto keyEvent = getValuePool()->obtain(VehiclePropertyType::INT32_VEC, 3);
+    keyEvent->prop = toInt(VehicleProperty::HW_KEY_INPUT);
+    keyEvent->areaId = 0;
+    keyEvent->timestamp = elapsedRealtimeNano();
+    keyEvent->status = VehiclePropertyStatus::AVAILABLE;
+    keyEvent->value.int32Values[0] = toInt(action);
+    keyEvent->value.int32Values[1] = keyCode;
+    keyEvent->value.int32Values[2] = targetDisplay;
+    return keyEvent;
+}
+
+StatusCode EmulatedVehicleServer::onSetProperty(const VehiclePropValue& value) {
+    // Some properties need to be treated non-trivially
+    switch (value.prop) {
+        case AP_POWER_STATE_REPORT:
+            switch (value.value.int32Values[0]) {
+                case toInt(VehicleApPowerStateReport::DEEP_SLEEP_EXIT):
+                case toInt(VehicleApPowerStateReport::SHUTDOWN_CANCELLED):
+                case toInt(VehicleApPowerStateReport::WAIT_FOR_VHAL):
+                    // CPMS is in WAIT_FOR_VHAL state, simply move to ON
+                    // Send back to HAL
+                    onPropertyValueFromCar(
+                            *createApPowerStateReq(VehicleApPowerStateReq::ON, 0));
+                    break;
+                case toInt(VehicleApPowerStateReport::DEEP_SLEEP_ENTRY):
+                case toInt(VehicleApPowerStateReport::SHUTDOWN_START):
+                    // CPMS is in WAIT_FOR_FINISH state, send the FINISHED command
+                    // Send back to HAL
+                    onPropertyValueFromCar(
+                            *createApPowerStateReq(VehicleApPowerStateReq::FINISHED, 0));
+                    break;
+                case toInt(VehicleApPowerStateReport::ON):
+                case toInt(VehicleApPowerStateReport::SHUTDOWN_POSTPONE):
+                case toInt(VehicleApPowerStateReport::SHUTDOWN_PREPARE):
+                    // Do nothing
+                    break;
+                default:
+                    // Unknown state
+                    break;
+            }
+            break;
+        default:
+            break;
+    }
+
+    // In the real vhal, the value will be sent to Car ECU.
+    // We just pretend it is done here.
+    return StatusCode::OK;
+}
+
+StatusCode EmulatedVehicleServer::onSetPropertyFromVehicle(const VehiclePropValue& value) {
+    if (value.prop == kGenerateFakeDataControllingProperty) {
+        auto status = handleGenerateFakeDataRequest(value);
+        return status;
+    } else {
+        // Send back to HAL
+        onPropertyValueFromCar(value);
+        return StatusCode::OK;
+    }
+}
+
+EmulatedPassthroughConnectorPtr makeEmulatedPassthroughConnector() {
+    return std::make_unique<EmulatedPassthroughConnector>();
+}
+
+}  // namespace impl
+
+}  // namespace V2_0
+}  // namespace vehicle
+}  // namespace automotive
+}  // namespace hardware
+}  // namespace android
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h
new file mode 100644
index 0000000..d424cd8
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef android_hardware_automotive_vehicle_V2_0_impl_EmulatedVehicleConnector_H_
+#define android_hardware_automotive_vehicle_V2_0_impl_EmulatedVehicleConnector_H_
+
+#include <vhal_v2_0/VehicleConnector.h>
+#include <vhal_v2_0/VehicleHal.h>
+
+#include "GeneratorHub.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+// Extension of the client/server interfaces for emulated vehicle
+
+class EmulatedVehicleClient : public IVehicleClient {
+  public:
+    // Type of callback function for handling the new property values
+    using PropertyCallBackType = std::function<void(const VehiclePropValue&)>;
+
+    // Method from IVehicleClient
+    void onPropertyValue(const VehiclePropValue& value) override;
+
+    // Request to change the value on the VEHICLE side (for testing)
+    virtual StatusCode setPropertyFromVehicle(const VehiclePropValue& value) = 0;
+
+    void registerPropertyValueCallback(PropertyCallBackType&& callback);
+
+  private:
+    PropertyCallBackType mPropCallback;
+};
+
+class EmulatedVehicleServer : public IVehicleServer {
+  public:
+    // Methods from IVehicleServer
+
+    std::vector<VehiclePropConfig> onGetAllPropertyConfig() const override;
+
+    StatusCode onSetProperty(const VehiclePropValue& value) override;
+
+    // Process the request to change the value on the VEHICLE side (for testing)
+    StatusCode onSetPropertyFromVehicle(const VehiclePropValue& value);
+
+    // Set the Property Value Pool used in this server
+    void setValuePool(VehiclePropValuePool* valuePool);
+
+  private:
+    GeneratorHub* getGenerator();
+
+    VehiclePropValuePool* getValuePool() const;
+
+    void onFakeValueGenerated(const VehiclePropValue& value);
+
+    StatusCode handleGenerateFakeDataRequest(const VehiclePropValue& request);
+
+    VehicleHal::VehiclePropValuePtr createApPowerStateReq(VehicleApPowerStateReq req, int32_t param);
+
+    VehicleHal::VehiclePropValuePtr createHwInputKeyProp(VehicleHwKeyInputAction action,
+                                                         int32_t keyCode, int32_t targetDisplay);
+
+    // private data members
+
+    GeneratorHub mGeneratorHub{
+            std::bind(&EmulatedVehicleServer::onFakeValueGenerated, this, std::placeholders::_1)};
+
+    VehiclePropValuePool* mValuePool{nullptr};
+};
+
+class EmulatedPassthroughConnector
+    : public IPassThroughConnector<EmulatedVehicleClient, EmulatedVehicleServer> {
+  public:
+    StatusCode setPropertyFromVehicle(const VehiclePropValue& value) override {
+        return this->onSetPropertyFromVehicle(value);
+    }
+};
+
+// Helper functions
+
+using EmulatedPassthroughConnectorPtr = std::unique_ptr<EmulatedPassthroughConnector>;
+
+EmulatedPassthroughConnectorPtr makeEmulatedPassthroughConnector();
+
+}  // namespace impl
+
+}  // namespace V2_0
+}  // namespace vehicle
+}  // namespace automotive
+}  // namespace hardware
+}  // namespace android
+
+#endif  // android_hardware_automotive_vehicle_V2_0_impl_EmulatedVehicleConnector_H_
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
index dc051d8..6508efe 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
@@ -87,17 +87,19 @@
     return sensorStore;
 }
 
-EmulatedVehicleHal::EmulatedVehicleHal(VehiclePropertyStore* propStore)
+EmulatedVehicleHal::EmulatedVehicleHal(VehiclePropertyStore* propStore,
+                                       EmulatedVehicleClient* client)
     : mPropStore(propStore),
       mHvacPowerProps(std::begin(kHvacPowerProperties), std::end(kHvacPowerProperties)),
       mRecurrentTimer(
           std::bind(&EmulatedVehicleHal::onContinuousPropertyTimer, this, std::placeholders::_1)),
-      mGeneratorHub(
-          std::bind(&EmulatedVehicleHal::onFakeValueGenerated, this, std::placeholders::_1)) {
+      mVehicleClient(client) {
     initStaticConfig();
     for (size_t i = 0; i < arraysize(kVehicleProperties); i++) {
         mPropStore->registerProperty(kVehicleProperties[i].config);
     }
+    mVehicleClient->registerPropertyValueCallback(
+        std::bind(&EmulatedVehicleHal::onPropertyValue, this, std::placeholders::_1));
 }
 
 VehicleHal::VehiclePropValuePtr EmulatedVehicleHal::get(
@@ -162,7 +164,8 @@
     }
 
     if (propValue.prop == kGenerateFakeDataControllingProperty) {
-        StatusCode status = handleGenerateFakeDataRequest(propValue);
+        // send the generator controlling request to the server
+        auto status = mVehicleClient->setPropertyFromVehicle(propValue);
         if (status != StatusCode::OK) {
             return status;
         }
@@ -186,29 +189,6 @@
                 // Placeholder for future implementation of VMS property in the default hal. For
                 // now, just returns OK; otherwise, hal clients crash with property not supported.
                 return StatusCode::OK;
-            case AP_POWER_STATE_REPORT:
-                switch (propValue.value.int32Values[0]) {
-                    case toInt(VehicleApPowerStateReport::DEEP_SLEEP_EXIT):
-                    case toInt(VehicleApPowerStateReport::SHUTDOWN_CANCELLED):
-                    case toInt(VehicleApPowerStateReport::WAIT_FOR_VHAL):
-                        // CPMS is in WAIT_FOR_VHAL state, simply move to ON
-                        doHalEvent(createApPowerStateReq(VehicleApPowerStateReq::ON, 0));
-                        break;
-                    case toInt(VehicleApPowerStateReport::DEEP_SLEEP_ENTRY):
-                    case toInt(VehicleApPowerStateReport::SHUTDOWN_START):
-                        // CPMS is in WAIT_FOR_FINISH state, send the FINISHED command
-                        doHalEvent(createApPowerStateReq(VehicleApPowerStateReq::FINISHED, 0));
-                        break;
-                    case toInt(VehicleApPowerStateReport::ON):
-                    case toInt(VehicleApPowerStateReport::SHUTDOWN_POSTPONE):
-                    case toInt(VehicleApPowerStateReport::SHUTDOWN_PREPARE):
-                        // Do nothing
-                        break;
-                    default:
-                        // Unknown state
-                        break;
-                }
-                break;
         }
     }
 
@@ -231,10 +211,16 @@
     /**
      * After checking all conditions, such as the property is available, a real vhal will
      * sent the events to Car ECU to take actions.
-     * Google HAL will just add a timestamp for the value and triggle the callback to android.
      */
     VehiclePropValuePtr updatedPropValue = getValuePool()->obtain(propValue);
     updatedPropValue->timestamp = elapsedRealtimeNano();
+
+    // Send the value to the vehicle server, the server will talk to the (real or emulated) car
+    auto setValueStatus = mVehicleClient->setProperty(*updatedPropValue);
+    if (setValueStatus != StatusCode::OK) {
+        return setValueStatus;
+    }
+
     if (!mPropStore->writeValue(*updatedPropValue, shouldUpdateStatus)) {
         return StatusCode::INTERNAL_ERROR;
     }
@@ -361,144 +347,19 @@
 }
 
 bool EmulatedVehicleHal::setPropertyFromVehicle(const VehiclePropValue& propValue) {
-    static constexpr bool shouldUpdateStatus = true;
-
-    if (propValue.prop == kGenerateFakeDataControllingProperty) {
-        StatusCode status = handleGenerateFakeDataRequest(propValue);
-        if (status != StatusCode::OK) {
-            return false;
-        }
-    }
-
-    if (mPropStore->writeValue(propValue, shouldUpdateStatus)) {
-        doHalEvent(getValuePool()->obtain(propValue));
-        return true;
-    } else {
-        return false;
-    }
+    return mVehicleClient->setPropertyFromVehicle(propValue) == StatusCode::OK;
 }
 
 std::vector<VehiclePropValue> EmulatedVehicleHal::getAllProperties() const  {
     return mPropStore->readAllValues();
 }
 
-StatusCode EmulatedVehicleHal::handleGenerateFakeDataRequest(const VehiclePropValue& request) {
-    ALOGI("%s", __func__);
-    const auto& v = request.value;
-    if (!v.int32Values.size()) {
-        ALOGE("%s: expected at least \"command\" field in int32Values", __func__);
-        return StatusCode::INVALID_ARG;
-    }
-
-    FakeDataCommand command = static_cast<FakeDataCommand>(v.int32Values[0]);
-
-    switch (command) {
-        case FakeDataCommand::StartLinear: {
-            ALOGI("%s, FakeDataCommand::StartLinear", __func__);
-            if (v.int32Values.size() < 2) {
-                ALOGE("%s: expected property ID in int32Values", __func__);
-                return StatusCode::INVALID_ARG;
-            }
-            if (!v.int64Values.size()) {
-                ALOGE("%s: interval is not provided in int64Values", __func__);
-                return StatusCode::INVALID_ARG;
-            }
-            if (v.floatValues.size() < 3) {
-                ALOGE("%s: expected at least 3 elements in floatValues, got: %zu", __func__,
-                      v.floatValues.size());
-                return StatusCode::INVALID_ARG;
-            }
-            int32_t cookie = v.int32Values[1];
-            mGeneratorHub.registerGenerator(cookie,
-                                            std::make_unique<LinearFakeValueGenerator>(request));
-            break;
-        }
-        case FakeDataCommand::StartJson: {
-            ALOGI("%s, FakeDataCommand::StartJson", __func__);
-            if (v.stringValue.empty()) {
-                ALOGE("%s: path to JSON file is missing", __func__);
-                return StatusCode::INVALID_ARG;
-            }
-            int32_t cookie = std::hash<std::string>()(v.stringValue);
-            mGeneratorHub.registerGenerator(cookie,
-                                            std::make_unique<JsonFakeValueGenerator>(request));
-            break;
-        }
-        case FakeDataCommand::StopLinear: {
-            ALOGI("%s, FakeDataCommand::StopLinear", __func__);
-            if (v.int32Values.size() < 2) {
-                ALOGE("%s: expected property ID in int32Values", __func__);
-                return StatusCode::INVALID_ARG;
-            }
-            int32_t cookie = v.int32Values[1];
-            mGeneratorHub.unregisterGenerator(cookie);
-            break;
-        }
-        case FakeDataCommand::StopJson: {
-            ALOGI("%s, FakeDataCommand::StopJson", __func__);
-            if (v.stringValue.empty()) {
-                ALOGE("%s: path to JSON file is missing", __func__);
-                return StatusCode::INVALID_ARG;
-            }
-            int32_t cookie = std::hash<std::string>()(v.stringValue);
-            mGeneratorHub.unregisterGenerator(cookie);
-            break;
-        }
-        case FakeDataCommand::KeyPress: {
-            ALOGI("%s, FakeDataCommand::KeyPress", __func__);
-            int32_t keyCode = request.value.int32Values[2];
-            int32_t display = request.value.int32Values[3];
-            doHalEvent(
-                createHwInputKeyProp(VehicleHwKeyInputAction::ACTION_DOWN, keyCode, display));
-            doHalEvent(createHwInputKeyProp(VehicleHwKeyInputAction::ACTION_UP, keyCode, display));
-            break;
-        }
-        default: {
-            ALOGE("%s: unexpected command: %d", __func__, command);
-            return StatusCode::INVALID_ARG;
-        }
-    }
-    return StatusCode::OK;
-}
-
-VehicleHal::VehiclePropValuePtr EmulatedVehicleHal::createApPowerStateReq(
-    VehicleApPowerStateReq state, int32_t param) {
-    auto req = getValuePool()->obtain(VehiclePropertyType::INT32_VEC, 2);
-    req->prop = toInt(VehicleProperty::AP_POWER_STATE_REQ);
-    req->areaId = 0;
-    req->timestamp = elapsedRealtimeNano();
-    req->status = VehiclePropertyStatus::AVAILABLE;
-    req->value.int32Values[0] = toInt(state);
-    req->value.int32Values[1] = param;
-    return req;
-}
-
-VehicleHal::VehiclePropValuePtr EmulatedVehicleHal::createHwInputKeyProp(
-    VehicleHwKeyInputAction action, int32_t keyCode, int32_t targetDisplay) {
-    auto keyEvent = getValuePool()->obtain(VehiclePropertyType::INT32_VEC, 3);
-    keyEvent->prop = toInt(VehicleProperty::HW_KEY_INPUT);
-    keyEvent->areaId = 0;
-    keyEvent->timestamp = elapsedRealtimeNano();
-    keyEvent->status = VehiclePropertyStatus::AVAILABLE;
-    keyEvent->value.int32Values[0] = toInt(action);
-    keyEvent->value.int32Values[1] = keyCode;
-    keyEvent->value.int32Values[2] = targetDisplay;
-    return keyEvent;
-}
-
-void EmulatedVehicleHal::onFakeValueGenerated(const VehiclePropValue& value) {
-    ALOGD("%s: %s", __func__, toString(value).c_str());
-    static constexpr bool shouldUpdateStatus = false;
-
+void EmulatedVehicleHal::onPropertyValue(const VehiclePropValue& value) {
+    static constexpr bool shouldUpdateStatus = true;
     VehiclePropValuePtr updatedPropValue = getValuePool()->obtain(value);
-    if (updatedPropValue) {
-        updatedPropValue->timestamp = value.timestamp;
-        updatedPropValue->status = VehiclePropertyStatus::AVAILABLE;
-        mPropStore->writeValue(*updatedPropValue, shouldUpdateStatus);
-        auto changeMode = mPropStore->getConfigOrDie(value.prop)->changeMode;
-        if (VehiclePropertyChangeMode::ON_CHANGE == changeMode) {
-            doHalEvent(std::move(updatedPropValue));
-        }
+
+    if (mPropStore->writeValue(*updatedPropValue, shouldUpdateStatus)) {
+        doHalEvent(std::move(updatedPropValue));
     }
 }
 
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
index 78895e3..98315ec 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
@@ -30,6 +30,7 @@
 #include "vhal_v2_0/VehiclePropertyStore.h"
 
 #include "DefaultConfig.h"
+#include "EmulatedVehicleConnector.h"
 #include "GeneratorHub.h"
 #include "VehicleEmulator.h"
 
@@ -44,7 +45,8 @@
 /** Implementation of VehicleHal that connected to emulator instead of real vehicle network. */
 class EmulatedVehicleHal : public EmulatedVehicleHalIface {
 public:
-    EmulatedVehicleHal(VehiclePropertyStore* propStore);
+    EmulatedVehicleHal(VehiclePropertyStore* propStore,
+                       EmulatedVehicleClient* client);
     ~EmulatedVehicleHal() = default;
 
     //  Methods from VehicleHal
@@ -66,10 +68,7 @@
     }
 
     StatusCode handleGenerateFakeDataRequest(const VehiclePropValue& request);
-    void onFakeValueGenerated(const VehiclePropValue& value);
-    VehiclePropValuePtr createApPowerStateReq(VehicleApPowerStateReq req, int32_t param);
-    VehiclePropValuePtr createHwInputKeyProp(VehicleHwKeyInputAction action, int32_t keyCode,
-                                             int32_t targetDisplay);
+    void onPropertyValue(const VehiclePropValue& value);
 
     void onContinuousPropertyTimer(const std::vector<int32_t>& properties);
     bool isContinuousProperty(int32_t propId) const;
@@ -85,7 +84,7 @@
     VehiclePropertyStore* mPropStore;
     std::unordered_set<int32_t> mHvacPowerProps;
     RecurrentTimer mRecurrentTimer;
-    GeneratorHub mGeneratorHub;
+    EmulatedVehicleClient* mVehicleClient;
 };
 
 }  // impl
diff --git a/automotive/vehicle/2.0/default/tests/VmsUtils_test.cpp b/automotive/vehicle/2.0/default/tests/VmsUtils_test.cpp
index 8b547f1..a48d19c 100644
--- a/automotive/vehicle/2.0/default/tests/VmsUtils_test.cpp
+++ b/automotive/vehicle/2.0/default/tests/VmsUtils_test.cpp
@@ -279,7 +279,7 @@
     VmsOffers offers = {123,
                         {VmsLayerOffering(VmsLayer(1, 0, 1), {VmsLayer(4, 1, 1)}),
                          VmsLayerOffering(VmsLayer(2, 0, 1))}};
-    auto message = createBaseVmsMessage(2);
+    auto message = createBaseVmsMessage(16);
     message->value.int32Values = hidl_vec<int32_t>{toInt(type),
                                                    1234,  // sequence number
                                                    2,     // number of layers
@@ -308,9 +308,28 @@
     testSubscribedLayers(VmsMessageType::SUBSCRIPTIONS_RESPONSE);
 }
 
+void testGetSubscribedLayersMalformedData(VmsMessageType type) {
+    VmsOffers offers = {123,
+                        {VmsLayerOffering(VmsLayer(1, 0, 1), {VmsLayer(4, 1, 1)}),
+                         VmsLayerOffering(VmsLayer(2, 0, 1))}};
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values = hidl_vec<int32_t>{toInt(type), 1234};  // sequence number
+    EXPECT_TRUE(isValidVmsMessage(*message));
+    auto result = getSubscribedLayers(*message, offers);
+    EXPECT_EQ(static_cast<int>(result.size()), 0);
+}
+
+TEST(VmsUtilsTest, subscribedLayersForMalformedChange) {
+    testGetSubscribedLayersMalformedData(VmsMessageType::SUBSCRIPTIONS_CHANGE);
+}
+
+TEST(VmsUtilsTest, subscribedLayersForMalformedResponse) {
+    testGetSubscribedLayersMalformedData(VmsMessageType::SUBSCRIPTIONS_RESPONSE);
+}
+
 void testSubscribedLayersWithDifferentSubtype(VmsMessageType type) {
     VmsOffers offers = {123, {VmsLayerOffering(VmsLayer(1, 0, 1))}};
-    auto message = createBaseVmsMessage(2);
+    auto message = createBaseVmsMessage(7);
     message->value.int32Values = hidl_vec<int32_t>{toInt(type),
                                                    1234,  // sequence number
                                                    1,     // number of layers
@@ -332,7 +351,7 @@
 
 void subscribedLayersWithDifferentVersion(VmsMessageType type) {
     VmsOffers offers = {123, {VmsLayerOffering(VmsLayer(1, 0, 1))}};
-    auto message = createBaseVmsMessage(2);
+    auto message = createBaseVmsMessage(7);
     message->value.int32Values = hidl_vec<int32_t>{toInt(type),
                                                    1234,             // sequence number
                                                    1,                // number of layers
@@ -353,7 +372,7 @@
 
 void subscribedLayersWithDifferentPublisherId(VmsMessageType type) {
     VmsOffers offers = {123, {VmsLayerOffering(VmsLayer(1, 0, 1))}};
-    auto message = createBaseVmsMessage(2);
+    auto message = createBaseVmsMessage(9);
     message->value.int32Values = hidl_vec<int32_t>{toInt(type),
                                                    1234,  // sequence number
                                                    0,     // number of layers
@@ -475,6 +494,113 @@
     EXPECT_EQ(new_service_id, 123);
 }
 
+TEST(VmsUtilsTest, newAvailabilitySequenceNumberForExistingSmallerNumberForChange) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_CHANGE), 1234};
+    EXPECT_TRUE(isAvailabilitySequenceNumberNewer(*message, 1233));
+}
+
+TEST(VmsUtilsTest, newAvailabilitySequenceNumberForExistingSmallerNumberForResponse) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_RESPONSE), 1234};
+    EXPECT_TRUE(isAvailabilitySequenceNumberNewer(*message, 1233));
+}
+
+TEST(VmsUtilsTest, newAvailabilitySequenceNumberForExistingGreaterNumberForChange) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_CHANGE), 1234};
+    EXPECT_FALSE(isAvailabilitySequenceNumberNewer(*message, 1235));
+}
+
+TEST(VmsUtilsTest, newAvailabilitySequenceNumberForExistingGreaterNumberForResponse) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_RESPONSE), 1234};
+    EXPECT_FALSE(isAvailabilitySequenceNumberNewer(*message, 1235));
+}
+
+TEST(VmsUtilsTest, newAvailabilitySequenceNumberForSameNumberForChange) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_CHANGE), 1234};
+    EXPECT_FALSE(isAvailabilitySequenceNumberNewer(*message, 1234));
+}
+
+TEST(VmsUtilsTest, newAvailabilitySequenceNumberForSameNumberForResponse) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_RESPONSE), 1234};
+    EXPECT_FALSE(isAvailabilitySequenceNumberNewer(*message, 1234));
+}
+
+TEST(VmsUtilsTest, validSequenceNumberForAvailabilityChange) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_CHANGE), 1234};
+    EXPECT_EQ(getSequenceNumberForAvailabilityState(*message), 1234);
+}
+
+TEST(VmsUtilsTest, validSequenceNumberForAvailabilityResponse) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::AVAILABILITY_RESPONSE), 1234};
+    EXPECT_EQ(getSequenceNumberForAvailabilityState(*message), 1234);
+}
+
+TEST(VmsUtilsTest, invalidAvailabilityState) {
+    auto message = createBaseVmsMessage(1);
+    EXPECT_EQ(getSequenceNumberForAvailabilityState(*message), -1);
+}
+
+void testGetAvailableLayers(VmsMessageType type) {
+    auto message = createBaseVmsMessage(13);
+    message->value.int32Values = hidl_vec<int32_t>{toInt(type),
+                                                   1234,  // sequence number
+                                                   2,     // number of associated layers
+                                                   1,     // associated layer 1
+                                                   0,           1,
+                                                   2,    // number of publisher IDs
+                                                   111,  // publisher IDs
+                                                   123,
+                                                   2,                   // associated layer 2
+                                                   0,           1, 0};  // number of publisher IDs
+    EXPECT_TRUE(isValidVmsMessage(*message));
+    auto result = getAvailableLayers(*message);
+    EXPECT_EQ(static_cast<int>(result.size()), 2);
+    EXPECT_EQ(result.at(0).layer, VmsLayer(1, 0, 1));
+    EXPECT_EQ(result.at(0).publisher_ids.at(0), 111);
+    EXPECT_EQ(result.at(0).publisher_ids.at(1), 123);
+    EXPECT_EQ(result.at(1).layer, VmsLayer(2, 0, 1));
+    EXPECT_EQ(static_cast<int>(result.at(1).publisher_ids.size()), 0);
+}
+
+TEST(VmsUtilsTest, availableLayersForChange) {
+    testGetAvailableLayers(VmsMessageType::AVAILABILITY_CHANGE);
+}
+
+TEST(VmsUtilsTest, availableLayersForResponse) {
+    testGetAvailableLayers(VmsMessageType::AVAILABILITY_RESPONSE);
+}
+
+void testGetAvailableLayersMalformedData(VmsMessageType type) {
+    auto message = createBaseVmsMessage(2);
+    message->value.int32Values = hidl_vec<int32_t>{toInt(type), 1234};  // sequence number
+    EXPECT_TRUE(isValidVmsMessage(*message));
+    auto result = getAvailableLayers(*message);
+    EXPECT_EQ(static_cast<int>(result.size()), 0);
+}
+
+TEST(VmsUtilsTest, availableLayersForMalformedChange) {
+    testGetAvailableLayersMalformedData(VmsMessageType::AVAILABILITY_CHANGE);
+}
+
+TEST(VmsUtilsTest, availableLayersForMalformedResponse) {
+    testGetAvailableLayersMalformedData(VmsMessageType::AVAILABILITY_RESPONSE);
+}
+
 }  // namespace
 
 }  // namespace vms
diff --git a/automotive/vehicle/2.0/types.hal b/automotive/vehicle/2.0/types.hal
index bc0b4d3..279d5cd 100644
--- a/automotive/vehicle/2.0/types.hal
+++ b/automotive/vehicle/2.0/types.hal
@@ -2349,6 +2349,96 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
+    /**
+     * Support customize permissions for vendor properties
+     *
+     * Implement this property if vehicle hal support customize vendor permissions feature.
+     * VehiclePropConfig.configArray is used to indicate vendor properties and permissions
+     * which selected for this vendor property. The permission must be one of enum in
+     * VehicleVendorPermission.
+     * The configArray is set as follows:
+     *      configArray[n] = propId : property ID for the vendor property
+     *      configArray[n+1] = one of enums in VehicleVendorPermission. It indicates the permission
+     *      for reading value of the property.
+     *      configArray[n+2] = one of enums in VehicleVendorPermission. It indicates the permission
+     *      for writing value of the property.
+     *
+     * For example:
+     * configArray = {
+     *      vendor_prop_1, PERMISSION_VENDOR_SEAT_READ, PERMISSION_VENDOR_SEAT_WRITE,
+     *      vendor_prop_2, PERMISSION_VENDOR_INFO, PERMISSION_NOT_ACCESSIBLE,
+     * }
+     * If vendor properties are not in this array, they will have the default vendor permission.
+     * If vendor chose PERMISSION_NOT_ACCESSIBLE, android will not have access to the property. In
+     * the example, Android can not write value for vendor_prop_2.
+     *
+     * @change_mode VehiclePropertyChangeMode:STATIC
+     * @access VehiclePropertyAccess:READ
+     */
+    SUPPORT_CUSTOMIZE_VENDOR_PERMISSION = (
+        0x0F05
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:BOOLEAN
+        | VehicleArea:GLOBAL),
+
+};
+
+/**
+ * Used by SUPPORT_CUSTOMIZE_VENDOR_PERMISSION to indicate the permission of vendor properties.
+ */
+enum VehicleVendorPermission : int32_t {
+    PERMISSION_DEFAULT = 0x00000000,
+
+    // permissions for the property related with window
+    PERMISSION_SET_VENDOR_CATEGORY_WINDOW= 0X00000001,
+    PERMISSION_GET_VENDOR_CATEGORY_WINDOW = 0x00000002,
+    // permissions for the property related with door
+    PERMISSION_SET_VENDOR_CATEGORY_DOOR  = 0x00000003,
+    PERMISSION_GET_VENDOR_CATEGORY_DOOR   = 0x00000004,
+    // permissions for the property related with seat
+    PERMISSION_SET_VENDOR_CATEGORY_SEAT  = 0x00000005,
+    PERMISSION_GET_VENDOR_CATEGORY_SEAT   = 0x00000006,
+    // permissions for the property related with mirror
+    PERMISSION_SET_VENDOR_CATEGORY_MIRROR= 0x00000007,
+    PERMISSION_GET_VENDOR_CATEGORY_MIRROR = 0x00000008,
+
+    // permissions for the property related with car's information
+    PERMISSION_SET_VENDOR_CATEGORY_INFO  = 0x00000009,
+    PERMISSION_GET_VENDOR_CATEGORY_INFO   = 0x0000000A,
+    // permissions for the property related with car's engine
+    PERMISSION_SET_VENDOR_CATEGORY_ENGINE= 0x0000000B,
+    PERMISSION_GET_VENDOR_CATEGORY_ENGINE = 0x0000000C,
+    // permissions for the property related with car's HVAC
+    PERMISSION_SET_VENDOR_CATEGORY_HVAC  = 0x0000000D,
+    PERMISSION_GET_VENDOR_CATEGORY_HVAC   = 0x0000000E,
+    // permissions for the property related with car's light
+    PERMISSION_SET_VENDOR_CATEGORY_LIGHT = 0x0000000F,
+    PERMISSION_GET_VENDOR_CATEGORY_LIGHT  = 0x00000010,
+
+    // permissions reserved for other vendor permission
+    PERMISSION_SET_VENDOR_CATEGORY_1  = 0x00010000,
+    PERMISSION_GET_VENDOR_CATEGORY_1   = 0x00011000,
+    PERMISSION_SET_VENDOR_CATEGORY_2  = 0x00020000,
+    PERMISSION_GET_VENDOR_CATEGORY_2   = 0x00021000,
+    PERMISSION_SET_VENDOR_CATEGORY_3  = 0x00030000,
+    PERMISSION_GET_VENDOR_CATEGORY_3   = 0x00031000,
+    PERMISSION_SET_VENDOR_CATEGORY_4  = 0x00040000,
+    PERMISSION_GET_VENDOR_CATEGORY_4   = 0x00041000,
+    PERMISSION_SET_VENDOR_CATEGORY_5  = 0x00050000,
+    PERMISSION_GET_VENDOR_CATEGORY_5   = 0x00051000,
+    PERMISSION_SET_VENDOR_CATEGORY_6  = 0x00060000,
+    PERMISSION_GET_VENDOR_CATEGORY_6   = 0x00061000,
+    PERMISSION_SET_VENDOR_CATEGORY_7  = 0x00070000,
+    PERMISSION_GET_VENDOR_CATEGORY_7   = 0x00071000,
+    PERMISSION_SET_VENDOR_CATEGORY_8  = 0x00080000,
+    PERMISSION_GET_VENDOR_CATEGORY_8   = 0x00081000,
+    PERMISSION_SET_VENDOR_CATEGORY_9  = 0x00090000,
+    PERMISSION_GET_VENDOR_CATEGORY_9   = 0x00091000,
+    PERMISSION_SET_VENDOR_CATEGORY_10 = 0x000A0000,
+    PERMISSION_GET_VENDOR_CATEGORY_10  = 0x000A1000,
+
+    // Indicate not available for android to access.
+    PERMISSION_NOT_ACCESSIBLE = 0xF0000000
 };
 
 /**
diff --git a/bluetooth/1.0/default/bluetooth_hci.cc b/bluetooth/1.0/default/bluetooth_hci.cc
index e14e3d7..a2211f4 100644
--- a/bluetooth/1.0/default/bluetooth_hci.cc
+++ b/bluetooth/1.0/default/bluetooth_hci.cc
@@ -89,6 +89,9 @@
         if (!hidl_status.isOk()) {
           ALOGE("VendorInterface -> Unable to call scoDataReceived()");
         }
+      },
+      [cb](const hidl_vec<uint8_t>&) {
+        ALOGE("VendorInterface -> No callback for ISO packets in HAL V1_0");
       });
   if (!rc) {
     auto hidl_status = cb->initializationComplete(Status::INITIALIZATION_ERROR);
diff --git a/bluetooth/1.0/default/h4_protocol.cc b/bluetooth/1.0/default/h4_protocol.cc
index 98e3273..8c24f76 100644
--- a/bluetooth/1.0/default/h4_protocol.cc
+++ b/bluetooth/1.0/default/h4_protocol.cc
@@ -58,6 +58,9 @@
     case HCI_PACKET_TYPE_SCO_DATA:
       sco_cb_(hci_packetizer_.GetPacket());
       break;
+    case HCI_PACKET_TYPE_ISO_DATA:
+      iso_cb_(hci_packetizer_.GetPacket());
+      break;
     default:
       LOG_ALWAYS_FATAL("%s: Unimplemented packet type %d", __func__,
                        static_cast<int>(hci_packet_type_));
diff --git a/bluetooth/1.0/default/h4_protocol.h b/bluetooth/1.0/default/h4_protocol.h
index 0d0a1ca..0c82fd6 100644
--- a/bluetooth/1.0/default/h4_protocol.h
+++ b/bluetooth/1.0/default/h4_protocol.h
@@ -31,11 +31,12 @@
 class H4Protocol : public HciProtocol {
  public:
   H4Protocol(int fd, PacketReadCallback event_cb, PacketReadCallback acl_cb,
-             PacketReadCallback sco_cb)
+             PacketReadCallback sco_cb, PacketReadCallback iso_cb)
       : uart_fd_(fd),
         event_cb_(event_cb),
         acl_cb_(acl_cb),
         sco_cb_(sco_cb),
+        iso_cb_(iso_cb),
         hci_packetizer_([this]() { OnPacketReady(); }) {}
 
   size_t Send(uint8_t type, const uint8_t* data, size_t length);
@@ -50,6 +51,7 @@
   PacketReadCallback event_cb_;
   PacketReadCallback acl_cb_;
   PacketReadCallback sco_cb_;
+  PacketReadCallback iso_cb_;
 
   HciPacketType hci_packet_type_{HCI_PACKET_TYPE_UNKNOWN};
   hci::HciPacketizer hci_packetizer_;
diff --git a/bluetooth/1.0/default/hci_internals.h b/bluetooth/1.0/default/hci_internals.h
index 1e1f300..24e944f 100644
--- a/bluetooth/1.0/default/hci_internals.h
+++ b/bluetooth/1.0/default/hci_internals.h
@@ -24,7 +24,8 @@
   HCI_PACKET_TYPE_COMMAND = 1,
   HCI_PACKET_TYPE_ACL_DATA = 2,
   HCI_PACKET_TYPE_SCO_DATA = 3,
-  HCI_PACKET_TYPE_EVENT = 4
+  HCI_PACKET_TYPE_EVENT = 4,
+  HCI_PACKET_TYPE_ISO_DATA = 5,
 };
 
 // 2 bytes for opcode, 1 byte for parameter length (Volume 2, Part E, 5.4.1)
diff --git a/bluetooth/1.0/default/test/h4_protocol_unittest.cc b/bluetooth/1.0/default/test/h4_protocol_unittest.cc
index ba56c0d..283243d 100644
--- a/bluetooth/1.0/default/test/h4_protocol_unittest.cc
+++ b/bluetooth/1.0/default/test/h4_protocol_unittest.cc
@@ -42,11 +42,15 @@
 static char sample_data1[100] = "A point is that which has no part.";
 static char sample_data2[100] = "A line is breadthless length.";
 static char sample_data3[100] = "The ends of a line are points.";
+static char sample_data4[100] =
+    "A plane surface is a surface which lies evenly with the straight ...";
 static char acl_data[100] =
     "A straight line is a line which lies evenly with the points on itself.";
 static char sco_data[100] =
     "A surface is that which has length and breadth only.";
 static char event_data[100] = "The edges of a surface are lines.";
+static char iso_data[100] =
+    "A plane angle is the inclination to one another of two lines in a ...";
 
 MATCHER_P3(HidlVecMatches, preamble, preamble_length, payload, "") {
   size_t length = strlen(payload) + preamble_length;
@@ -75,9 +79,9 @@
 
     int sockfd[2];
     socketpair(AF_LOCAL, SOCK_STREAM, 0, sockfd);
-    H4Protocol* h4_hci =
-        new H4Protocol(sockfd[0], event_cb_.AsStdFunction(),
-                       acl_cb_.AsStdFunction(), sco_cb_.AsStdFunction());
+    H4Protocol* h4_hci = new H4Protocol(
+        sockfd[0], event_cb_.AsStdFunction(), acl_cb_.AsStdFunction(),
+        sco_cb_.AsStdFunction(), iso_cb_.AsStdFunction());
     fd_watcher_.WatchFdForNonBlockingReads(
         sockfd[0], [h4_hci](int fd) { h4_hci->OnDataReady(fd); });
     protocol_ = h4_hci;
@@ -184,9 +188,35 @@
     }
   }
 
+  void WriteAndExpectInboundIsoData(char* payload) {
+    // h4 type[1] + handle[2] + size[1]
+    char preamble[4] = {HCI_PACKET_TYPE_ISO_DATA, 20, 17, 0};
+    preamble[3] = strlen(payload) & 0xFF;
+
+    ALOGD("%s writing", __func__);
+    TEMP_FAILURE_RETRY(write(fake_uart_, preamble, sizeof(preamble)));
+    TEMP_FAILURE_RETRY(write(fake_uart_, payload, strlen(payload)));
+
+    ALOGD("%s waiting", __func__);
+    std::mutex mutex;
+    std::condition_variable done;
+    EXPECT_CALL(iso_cb_, Call(HidlVecMatches(preamble + 1, sizeof(preamble) - 1,
+                                             payload)))
+        .WillOnce(Notify(&mutex, &done));
+
+    // Fail if it takes longer than 100 ms.
+    auto timeout_time =
+        std::chrono::steady_clock::now() + std::chrono::milliseconds(100);
+    {
+      std::unique_lock<std::mutex> lock(mutex);
+      done.wait_until(lock, timeout_time);
+    }
+  }
+
   testing::MockFunction<void(const hidl_vec<uint8_t>&)> event_cb_;
   testing::MockFunction<void(const hidl_vec<uint8_t>&)> acl_cb_;
   testing::MockFunction<void(const hidl_vec<uint8_t>&)> sco_cb_;
+  testing::MockFunction<void(const hidl_vec<uint8_t>&)> iso_cb_;
   async::AsyncFdWatcher fd_watcher_;
   H4Protocol* protocol_;
   int fake_uart_;
@@ -197,6 +227,7 @@
   SendAndReadUartOutbound(HCI_PACKET_TYPE_COMMAND, sample_data1);
   SendAndReadUartOutbound(HCI_PACKET_TYPE_ACL_DATA, sample_data2);
   SendAndReadUartOutbound(HCI_PACKET_TYPE_SCO_DATA, sample_data3);
+  SendAndReadUartOutbound(HCI_PACKET_TYPE_ISO_DATA, sample_data4);
 }
 
 // Ensure we properly parse data coming from the UART
@@ -204,6 +235,7 @@
   WriteAndExpectInboundAclData(acl_data);
   WriteAndExpectInboundScoData(sco_data);
   WriteAndExpectInboundEvent(event_data);
+  WriteAndExpectInboundIsoData(iso_data);
 }
 
 }  // namespace implementation
diff --git a/bluetooth/1.0/default/vendor_interface.cc b/bluetooth/1.0/default/vendor_interface.cc
index d56e344..d809313 100644
--- a/bluetooth/1.0/default/vendor_interface.cc
+++ b/bluetooth/1.0/default/vendor_interface.cc
@@ -162,14 +162,14 @@
 bool VendorInterface::Initialize(
     InitializeCompleteCallback initialize_complete_cb,
     PacketReadCallback event_cb, PacketReadCallback acl_cb,
-    PacketReadCallback sco_cb) {
+    PacketReadCallback sco_cb, PacketReadCallback iso_cb) {
   if (g_vendor_interface) {
     ALOGE("%s: No previous Shutdown()?", __func__);
     return false;
   }
   g_vendor_interface = new VendorInterface();
   return g_vendor_interface->Open(initialize_complete_cb, event_cb, acl_cb,
-                                  sco_cb);
+                                  sco_cb, iso_cb);
 }
 
 void VendorInterface::Shutdown() {
@@ -185,7 +185,8 @@
 bool VendorInterface::Open(InitializeCompleteCallback initialize_complete_cb,
                            PacketReadCallback event_cb,
                            PacketReadCallback acl_cb,
-                           PacketReadCallback sco_cb) {
+                           PacketReadCallback sco_cb,
+                           PacketReadCallback iso_cb) {
   initialize_complete_cb_ = initialize_complete_cb;
 
   // Initialize vendor interface
@@ -248,7 +249,7 @@
 
   if (fd_count == 1) {
     hci::H4Protocol* h4_hci =
-        new hci::H4Protocol(fd_list[0], intercept_events, acl_cb, sco_cb);
+        new hci::H4Protocol(fd_list[0], intercept_events, acl_cb, sco_cb, iso_cb);
     fd_watcher_.WatchFdForNonBlockingReads(
         fd_list[0], [h4_hci](int fd) { h4_hci->OnDataReady(fd); });
     hci_ = h4_hci;
diff --git a/bluetooth/1.0/default/vendor_interface.h b/bluetooth/1.0/default/vendor_interface.h
index 1d69040..040f31a 100644
--- a/bluetooth/1.0/default/vendor_interface.h
+++ b/bluetooth/1.0/default/vendor_interface.h
@@ -38,7 +38,7 @@
  public:
   static bool Initialize(InitializeCompleteCallback initialize_complete_cb,
                          PacketReadCallback event_cb, PacketReadCallback acl_cb,
-                         PacketReadCallback sco_cb);
+                         PacketReadCallback sco_cb, PacketReadCallback iso_cb);
   static void Shutdown();
   static VendorInterface* get();
 
@@ -51,7 +51,7 @@
 
   bool Open(InitializeCompleteCallback initialize_complete_cb,
             PacketReadCallback event_cb, PacketReadCallback acl_cb,
-            PacketReadCallback sco_cb);
+            PacketReadCallback sco_cb, PacketReadCallback iso_cb);
   void Close();
 
   void OnTimeout();
diff --git a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
index beb9a3e..ef02eff 100644
--- a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
+++ b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
@@ -24,8 +24,9 @@
 #include <utils/Log.h>
 
 #include <VtsHalHidlTargetCallbackBase.h>
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 #include <chrono>
 #include <queue>
@@ -137,30 +138,12 @@
   std::chrono::steady_clock::time_point start_time_;
 };
 
-// Test environment for Bluetooth HIDL HAL.
-class BluetoothHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
- public:
-  // get the test environment singleton
-  static BluetoothHidlEnvironment* Instance() {
-    static BluetoothHidlEnvironment* instance = new BluetoothHidlEnvironment;
-    return instance;
-  }
-
-  virtual void registerTestServices() override {
-    registerTestService<IBluetoothHci>();
-  }
-
- private:
-  BluetoothHidlEnvironment() {}
-};
-
 // The main test class for Bluetooth HIDL HAL.
-class BluetoothHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class BluetoothHidlTest : public ::testing::TestWithParam<std::string> {
  public:
   virtual void SetUp() override {
     // currently test passthrough mode only
-    bluetooth =
-        ::testing::VtsHalHidlTargetTestBase::getService<IBluetoothHci>();
+    bluetooth = IBluetoothHci::getService(GetParam());
     ASSERT_NE(bluetooth, nullptr);
     ALOGI("%s: getService() for bluetooth is %s", __func__,
           bluetooth->isRemote() ? "remote" : "local");
@@ -617,10 +600,10 @@
 }
 
 // Empty test: Initialize()/Close() are called in SetUp()/TearDown().
-TEST_F(BluetoothHidlTest, InitializeAndClose) {}
+TEST_P(BluetoothHidlTest, InitializeAndClose) {}
 
 // Send an HCI Reset with sendHciCommand and wait for a command complete event.
-TEST_F(BluetoothHidlTest, HciReset) {
+TEST_P(BluetoothHidlTest, HciReset) {
   hidl_vec<uint8_t> cmd = COMMAND_HCI_RESET;
   bluetooth->sendHciCommand(cmd);
 
@@ -628,7 +611,7 @@
 }
 
 // Read and check the HCI version of the controller.
-TEST_F(BluetoothHidlTest, HciVersionTest) {
+TEST_P(BluetoothHidlTest, HciVersionTest) {
   hidl_vec<uint8_t> cmd = COMMAND_HCI_READ_LOCAL_VERSION_INFORMATION;
   bluetooth->sendHciCommand(cmd);
 
@@ -649,7 +632,7 @@
 }
 
 // Send an unknown HCI command and wait for the error message.
-TEST_F(BluetoothHidlTest, HciUnknownCommand) {
+TEST_P(BluetoothHidlTest, HciUnknownCommand) {
   hidl_vec<uint8_t> cmd = COMMAND_HCI_SHOULD_BE_UNKNOWN;
   bluetooth->sendHciCommand(cmd);
 
@@ -676,14 +659,14 @@
 }
 
 // Enter loopback mode, but don't send any packets.
-TEST_F(BluetoothHidlTest, WriteLoopbackMode) {
+TEST_P(BluetoothHidlTest, WriteLoopbackMode) {
   std::vector<uint16_t> sco_connection_handles;
   std::vector<uint16_t> acl_connection_handles;
   enterLoopbackMode(sco_connection_handles, acl_connection_handles);
 }
 
 // Enter loopback mode and send single packets.
-TEST_F(BluetoothHidlTest, LoopbackModeSinglePackets) {
+TEST_P(BluetoothHidlTest, LoopbackModeSinglePackets) {
   setBufferSizes();
 
   std::vector<uint16_t> sco_connection_handles;
@@ -720,7 +703,7 @@
 }
 
 // Enter loopback mode and send packets for bandwidth measurements.
-TEST_F(BluetoothHidlTest, LoopbackModeBandwidth) {
+TEST_P(BluetoothHidlTest, LoopbackModeBandwidth) {
   setBufferSizes();
 
   std::vector<uint16_t> sco_connection_handles;
@@ -758,11 +741,8 @@
   }
 }
 
-int main(int argc, char** argv) {
-  ::testing::AddGlobalTestEnvironment(BluetoothHidlEnvironment::Instance());
-  ::testing::InitGoogleTest(&argc, argv);
-  BluetoothHidlEnvironment::Instance()->init(&argc, argv);
-  int status = RUN_ALL_TESTS();
-  ALOGI("Test result = %d", status);
-  return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+    PerInstance, BluetoothHidlTest,
+    testing::ValuesIn(
+        android::hardware::getAllHalInstanceNames(IBluetoothHci::descriptor)),
+    android::hardware::PrintInstanceNameToString);
diff --git a/bluetooth/1.1/Android.bp b/bluetooth/1.1/Android.bp
new file mode 100644
index 0000000..4204aed
--- /dev/null
+++ b/bluetooth/1.1/Android.bp
@@ -0,0 +1,18 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.bluetooth@1.1",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IBluetoothHci.hal",
+        "IBluetoothHciCallbacks.hal",
+    ],
+    interfaces: [
+        "android.hardware.bluetooth@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
diff --git a/bluetooth/1.1/IBluetoothHci.hal b/bluetooth/1.1/IBluetoothHci.hal
new file mode 100644
index 0000000..0f69c6e
--- /dev/null
+++ b/bluetooth/1.1/IBluetoothHci.hal
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.bluetooth@1.1;
+
+import @1.0::HciPacket;
+import @1.0::IBluetoothHci;
+import IBluetoothHciCallbacks;
+
+/**
+ * The Host Controller Interface (HCI) is the layer defined by the Bluetooth
+ * specification between the software that runs on the host and the Bluetooth
+ * controller chip. This boundary is the natural choice for a Hardware
+ * Abstraction Layer (HAL). Dealing only in HCI packets and events simplifies
+ * the stack and abstracts away power management, initialization, and other
+ * implementation-specific details related to the hardware.
+ */
+interface IBluetoothHci extends @1.0::IBluetoothHci {
+    /**
+     * Same as @1.0, but uses 1.1 Callbacks version
+     */
+    initialize_1_1(@1.1::IBluetoothHciCallbacks callback);
+
+    /**
+     * Send an ISO data packet (as specified in the Bluetooth Specification
+     * V6.0) to the Bluetooth controller.
+     * Packets must be processed in order.
+     * @param data HCI data packet to be sent
+     */
+    sendIsoData(HciPacket data);
+};
diff --git a/bluetooth/1.1/IBluetoothHciCallbacks.hal b/bluetooth/1.1/IBluetoothHciCallbacks.hal
new file mode 100644
index 0000000..62cbe45
--- /dev/null
+++ b/bluetooth/1.1/IBluetoothHciCallbacks.hal
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.bluetooth@1.1;
+
+import @1.0::HciPacket;
+import @1.0::IBluetoothHciCallbacks;
+
+/**
+ * The interface from the Bluetooth Controller to the stack.
+ */
+interface IBluetoothHciCallbacks extends @1.0::IBluetoothHciCallbacks {
+    /**
+     * Send a ISO data packet form the controller to the host.
+     * @param data the ISO HCI packet to be passed to the host stack
+     */
+    isoDataReceived(HciPacket data);
+};
diff --git a/bluetooth/1.1/default/Android.bp b/bluetooth/1.1/default/Android.bp
new file mode 100644
index 0000000..4f7fecb
--- /dev/null
+++ b/bluetooth/1.1/default/Android.bp
@@ -0,0 +1,42 @@
+//
+// 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.
+
+cc_binary {
+    name: "android.hardware.bluetooth@1.1-service",
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    vendor: true,
+    init_rc: ["android.hardware.bluetooth@1.1-service.rc"],
+    srcs: [
+        "service.cpp",
+        "bluetooth_hci.cc",
+    ],
+
+    shared_libs: [
+        "liblog",
+        "libcutils",
+        "libdl",
+        "libbase",
+        "libutils",
+        "libhardware",
+        "libhidlbase",
+        "android.hardware.bluetooth@1.0-impl",
+        "android.hardware.bluetooth@1.1",
+    ],
+
+    static_libs: [
+        "android.hardware.bluetooth-hci",
+    ],
+}
diff --git a/bluetooth/1.1/default/OWNERS b/bluetooth/1.1/default/OWNERS
new file mode 100644
index 0000000..0c01df6
--- /dev/null
+++ b/bluetooth/1.1/default/OWNERS
@@ -0,0 +1,3 @@
+zachoverflow@google.com
+mylesgw@google.com
+jpawlowski@google.com
diff --git a/bluetooth/1.1/default/android.hardware.bluetooth@1.1-service.rc b/bluetooth/1.1/default/android.hardware.bluetooth@1.1-service.rc
new file mode 100644
index 0000000..49f0be3
--- /dev/null
+++ b/bluetooth/1.1/default/android.hardware.bluetooth@1.1-service.rc
@@ -0,0 +1,9 @@
+service vendor.bluetooth-1-1 /vendor/bin/hw/android.hardware.bluetooth@1.1-service
+    interface android.hardware.bluetooth@1.1::IBluetoothHci default
+    interface android.hardware.bluetooth@1.0::IBluetoothHci default
+    class hal
+    capabilities BLOCK_SUSPEND NET_ADMIN SYS_NICE
+    user bluetooth
+    group bluetooth
+    writepid /dev/stune/foreground/tasks
+
diff --git a/bluetooth/1.1/default/bluetooth_hci.cc b/bluetooth/1.1/default/bluetooth_hci.cc
new file mode 100644
index 0000000..7ccce80
--- /dev/null
+++ b/bluetooth/1.1/default/bluetooth_hci.cc
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.bluetooth@1.1-impl"
+#include "bluetooth_hci.h"
+
+#include <log/log.h>
+
+#include "vendor_interface.h"
+
+using android::hardware::bluetooth::V1_0::implementation::VendorInterface;
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace V1_1 {
+namespace implementation {
+
+static const uint8_t HCI_DATA_TYPE_COMMAND = 1;
+static const uint8_t HCI_DATA_TYPE_ACL = 2;
+static const uint8_t HCI_DATA_TYPE_SCO = 3;
+static const uint8_t HCI_DATA_TYPE_ISO = 5;
+
+class BluetoothDeathRecipient : public hidl_death_recipient {
+ public:
+  BluetoothDeathRecipient(const sp<IBluetoothHci> hci) : mHci(hci) {}
+
+  virtual void serviceDied(
+      uint64_t /*cookie*/,
+      const wp<::android::hidl::base::V1_0::IBase>& /*who*/) {
+    ALOGE("BluetoothDeathRecipient::serviceDied - Bluetooth service died");
+    has_died_ = true;
+    mHci->close();
+  }
+  sp<IBluetoothHci> mHci;
+  bool getHasDied() const { return has_died_; }
+  void setHasDied(bool has_died) { has_died_ = has_died; }
+
+ private:
+  bool has_died_;
+};
+
+BluetoothHci::BluetoothHci()
+    : death_recipient_(new BluetoothDeathRecipient(this)) {}
+
+Return<void> BluetoothHci::initialize_1_1(
+    const ::android::sp<V1_1::IBluetoothHciCallbacks>& cb) {
+  ALOGI("BluetoothHci::initialize_1_1()");
+  if (cb == nullptr) {
+    ALOGE("cb == nullptr! -> Unable to call initializationComplete(ERR)");
+    return Void();
+  }
+
+  death_recipient_->setHasDied(false);
+  cb->linkToDeath(death_recipient_, 0);
+
+  bool rc = VendorInterface::Initialize(
+      [cb](bool status) {
+        auto hidl_status = cb->initializationComplete(
+            status ? V1_0::Status::SUCCESS
+                   : V1_0::Status::INITIALIZATION_ERROR);
+        if (!hidl_status.isOk()) {
+          ALOGE("VendorInterface -> Unable to call initializationComplete()");
+        }
+      },
+      [cb](const hidl_vec<uint8_t>& packet) {
+        auto hidl_status = cb->hciEventReceived(packet);
+        if (!hidl_status.isOk()) {
+          ALOGE("VendorInterface -> Unable to call hciEventReceived()");
+        }
+      },
+      [cb](const hidl_vec<uint8_t>& packet) {
+        auto hidl_status = cb->aclDataReceived(packet);
+        if (!hidl_status.isOk()) {
+          ALOGE("VendorInterface -> Unable to call aclDataReceived()");
+        }
+      },
+      [cb](const hidl_vec<uint8_t>& packet) {
+        auto hidl_status = cb->scoDataReceived(packet);
+        if (!hidl_status.isOk()) {
+          ALOGE("VendorInterface -> Unable to call scoDataReceived()");
+        }
+      },
+      [cb](const hidl_vec<uint8_t>& packet) {
+        auto hidl_status = cb->isoDataReceived(packet);
+        if (!hidl_status.isOk()) {
+          ALOGE("VendorInterface -> Unable to call isoDataReceived()");
+        }
+      });
+  if (!rc) {
+    auto hidl_status =
+        cb->initializationComplete(V1_0::Status::INITIALIZATION_ERROR);
+    if (!hidl_status.isOk()) {
+      ALOGE("VendorInterface -> Unable to call initializationComplete(ERR)");
+    }
+  }
+
+  unlink_cb_ = [cb](sp<BluetoothDeathRecipient>& death_recipient) {
+    if (death_recipient->getHasDied())
+      ALOGI("Skipping unlink call, service died.");
+    else
+      cb->unlinkToDeath(death_recipient);
+  };
+
+  return Void();
+}
+
+class OldCbWrapper : public V1_1::IBluetoothHciCallbacks {
+ public:
+  const ::android::sp<V1_0::IBluetoothHciCallbacks> old_cb_;
+  OldCbWrapper(const ::android::sp<V1_0::IBluetoothHciCallbacks>& old_cb)
+      : old_cb_(old_cb) {}
+
+  virtual ~OldCbWrapper() = default;
+
+  Return<void> initializationComplete(V1_0::Status status) override {
+    return old_cb_->initializationComplete(status);
+  };
+
+  Return<void> hciEventReceived(
+      const ::android::hardware::hidl_vec<uint8_t>& event) override {
+    return old_cb_->hciEventReceived(event);
+  };
+
+  Return<void> aclDataReceived(
+      const ::android::hardware::hidl_vec<uint8_t>& data) override {
+    return old_cb_->aclDataReceived(data);
+  };
+
+  Return<void> scoDataReceived(
+      const ::android::hardware::hidl_vec<uint8_t>& data) override {
+    return old_cb_->scoDataReceived(data);
+  };
+
+  Return<void> isoDataReceived(
+      const ::android::hardware::hidl_vec<uint8_t>&) override {
+    ALOGE("Please use HAL V1_1 for ISO.");
+    return Void();
+  };
+};
+
+Return<void> BluetoothHci::initialize(
+    const ::android::sp<V1_0::IBluetoothHciCallbacks>& cb) {
+  ALOGE("Using initialize from HAL V1_0 instead of initialize_1_1.");
+  return initialize_1_1(new OldCbWrapper(cb));
+}
+
+Return<void> BluetoothHci::close() {
+  ALOGI("BluetoothHci::close()");
+  unlink_cb_(death_recipient_);
+  VendorInterface::Shutdown();
+  return Void();
+}
+
+Return<void> BluetoothHci::sendHciCommand(const hidl_vec<uint8_t>& command) {
+  sendDataToController(HCI_DATA_TYPE_COMMAND, command);
+  return Void();
+}
+
+Return<void> BluetoothHci::sendAclData(const hidl_vec<uint8_t>& data) {
+  sendDataToController(HCI_DATA_TYPE_ACL, data);
+  return Void();
+}
+
+Return<void> BluetoothHci::sendScoData(const hidl_vec<uint8_t>& data) {
+  sendDataToController(HCI_DATA_TYPE_SCO, data);
+  return Void();
+}
+
+Return<void> BluetoothHci::sendIsoData(const hidl_vec<uint8_t>& data) {
+  sendDataToController(HCI_DATA_TYPE_ISO, data);
+  return Void();
+}
+
+void BluetoothHci::sendDataToController(const uint8_t type,
+                                        const hidl_vec<uint8_t>& data) {
+  VendorInterface::get()->Send(type, data.data(), data.size());
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
diff --git a/bluetooth/1.1/default/bluetooth_hci.h b/bluetooth/1.1/default/bluetooth_hci.h
new file mode 100644
index 0000000..5f59cb0
--- /dev/null
+++ b/bluetooth/1.1/default/bluetooth_hci.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HIDL_GENERATED_android_hardware_bluetooth_V1_1_BluetoothHci_H_
+#define HIDL_GENERATED_android_hardware_bluetooth_V1_1_BluetoothHci_H_
+
+#include <android/hardware/bluetooth/1.1/IBluetoothHci.h>
+#include <android/hardware/bluetooth/1.1/IBluetoothHciCallbacks.h>
+
+#include <hidl/MQDescriptor.h>
+
+#include <functional>
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+
+class BluetoothDeathRecipient;
+
+class BluetoothHci : public V1_1::IBluetoothHci {
+ public:
+  BluetoothHci();
+  Return<void> initialize(
+      const ::android::sp<V1_0::IBluetoothHciCallbacks>& cb) override;
+  Return<void> initialize_1_1(
+      const ::android::sp<V1_1::IBluetoothHciCallbacks>& cb) override;
+  Return<void> sendHciCommand(const hidl_vec<uint8_t>& packet) override;
+  Return<void> sendAclData(const hidl_vec<uint8_t>& data) override;
+  Return<void> sendScoData(const hidl_vec<uint8_t>& data) override;
+  Return<void> sendIsoData(const hidl_vec<uint8_t>& data) override;
+  Return<void> close() override;
+
+ private:
+  void sendDataToController(const uint8_t type, const hidl_vec<uint8_t>& data);
+  ::android::sp<BluetoothDeathRecipient> death_recipient_;
+  std::function<void(sp<BluetoothDeathRecipient>&)> unlink_cb_;
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+
+#endif  // HIDL_GENERATED_android_hardware_bluetooth_V1_1_BluetoothHci_H_
diff --git a/bluetooth/1.1/default/service.cpp b/bluetooth/1.1/default/service.cpp
new file mode 100644
index 0000000..affa855
--- /dev/null
+++ b/bluetooth/1.1/default/service.cpp
@@ -0,0 +1,43 @@
+//
+// Copyright 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "android.hardware.bluetooth@1.1-service"
+
+#include <android/hardware/bluetooth/1.1/IBluetoothHci.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "bluetooth_hci.h"
+
+// Generated HIDL files
+using android::hardware::bluetooth::V1_1::IBluetoothHci;
+using android::hardware::bluetooth::V1_1::implementation::BluetoothHci;
+
+using android::sp;
+using android::status_t;
+
+int main() {
+  ::android::hardware::configureRpcThreadpool(1 /*threads*/, true /*willJoin*/);
+
+  sp bluetoothHci = new BluetoothHci();
+  const status_t status = bluetoothHci->registerAsService();
+  if (status != ::android::OK) {
+    ALOGE("Cannot register Bluetooth HAL service");
+    return 1;  // or handle error
+  }
+
+  ::android::hardware::joinRpcThreadpool();
+  return 1;  // joinRpcThreadpool should never return
+}
diff --git a/bluetooth/1.1/vts/OWNERS b/bluetooth/1.1/vts/OWNERS
new file mode 100644
index 0000000..ff6fd93
--- /dev/null
+++ b/bluetooth/1.1/vts/OWNERS
@@ -0,0 +1,6 @@
+zachoverflow@google.com
+siyuanh@google.com
+mylesgw@google.com
+jpawlowski@google.com
+hsz@google.com
+
diff --git a/vibrator/1.4/vts/functional/Android.bp b/bluetooth/1.1/vts/functional/Android.bp
similarity index 65%
copy from vibrator/1.4/vts/functional/Android.bp
copy to bluetooth/1.1/vts/functional/Android.bp
index 202a824..8d6d749 100644
--- a/vibrator/1.4/vts/functional/Android.bp
+++ b/bluetooth/1.1/vts/functional/Android.bp
@@ -15,19 +15,13 @@
 //
 
 cc_test {
-    name: "VtsHalVibratorV1_4TargetTest",
+    name: "VtsHalBluetoothV1_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
-    srcs: ["VtsHalVibratorV1_4TargetTest.cpp"],
+    srcs: ["VtsHalBluetoothV1_1TargetTest.cpp"],
     static_libs: [
-        "android.hardware.vibrator@1.0",
-        "android.hardware.vibrator@1.1",
-        "android.hardware.vibrator@1.2",
-        "android.hardware.vibrator@1.3",
-        "android.hardware.vibrator@1.4",
+        "android.hardware.bluetooth@1.1",
+        "android.hardware.bluetooth@1.0",
+        "libbluetooth-types",
     ],
-    test_suites: [
-        "general-tests",
-        "vts-core",
-    ],
+    test_suites: ["general-tests", "vts-core"],
 }
-
diff --git a/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.cpp b/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.cpp
new file mode 100644
index 0000000..659b2c8
--- /dev/null
+++ b/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.cpp
@@ -0,0 +1,760 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "bluetooth_hidl_hal_test"
+#include <android-base/logging.h>
+
+#include <android/hardware/bluetooth/1.0/types.h>
+#include <android/hardware/bluetooth/1.1/IBluetoothHci.h>
+#include <android/hardware/bluetooth/1.1/IBluetoothHciCallbacks.h>
+#include <hardware/bluetooth.h>
+#include <utils/Log.h>
+
+#include <VtsHalHidlTargetCallbackBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
+
+#include <chrono>
+#include <queue>
+#include <thread>
+
+using ::android::sp;
+using ::android::hardware::hidl_death_recipient;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::bluetooth::V1_0::Status;
+using ::android::hardware::bluetooth::V1_1::IBluetoothHci;
+using ::android::hardware::bluetooth::V1_1::IBluetoothHciCallbacks;
+
+#define HCI_MINIMUM_HCI_VERSION 5  // Bluetooth Core Specification 3.0 + HS
+#define HCI_MINIMUM_LMP_VERSION 5  // Bluetooth Core Specification 3.0 + HS
+#define NUM_HCI_COMMANDS_BANDWIDTH 1000
+#define NUM_SCO_PACKETS_BANDWIDTH 1000
+#define NUM_ACL_PACKETS_BANDWIDTH 1000
+#define WAIT_FOR_INIT_TIMEOUT std::chrono::milliseconds(2000)
+#define WAIT_FOR_HCI_EVENT_TIMEOUT std::chrono::milliseconds(2000)
+#define WAIT_FOR_SCO_DATA_TIMEOUT std::chrono::milliseconds(1000)
+#define WAIT_FOR_ACL_DATA_TIMEOUT std::chrono::milliseconds(1000)
+#define INTERFACE_CLOSE_DELAY_MS std::chrono::milliseconds(200)
+
+#define COMMAND_HCI_SHOULD_BE_UNKNOWN \
+  { 0xff, 0x3B, 0x08, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }
+#define COMMAND_HCI_READ_LOCAL_VERSION_INFORMATION \
+  { 0x01, 0x10, 0x00 }
+#define COMMAND_HCI_READ_BUFFER_SIZE \
+  { 0x05, 0x10, 0x00 }
+#define COMMAND_HCI_WRITE_LOOPBACK_MODE_LOCAL \
+  { 0x02, 0x18, 0x01, 0x01 }
+#define COMMAND_HCI_RESET \
+  { 0x03, 0x0c, 0x00 }
+#define COMMAND_HCI_WRITE_LOCAL_NAME \
+  { 0x13, 0x0c, 0xf8 }
+#define HCI_STATUS_SUCCESS 0x00
+#define HCI_STATUS_UNKNOWN_HCI_COMMAND 0x01
+
+#define EVENT_CONNECTION_COMPLETE 0x03
+#define EVENT_COMMAND_COMPLETE 0x0e
+#define EVENT_COMMAND_STATUS 0x0f
+#define EVENT_NUMBER_OF_COMPLETED_PACKETS 0x13
+#define EVENT_LOOPBACK_COMMAND 0x19
+
+#define EVENT_CODE_BYTE 0
+#define EVENT_LENGTH_BYTE 1
+#define EVENT_FIRST_PAYLOAD_BYTE 2
+#define EVENT_COMMAND_STATUS_STATUS_BYTE 2
+#define EVENT_COMMAND_STATUS_ALLOWED_PACKETS_BYTE 3
+#define EVENT_COMMAND_STATUS_OPCODE_LSBYTE 4  // Bytes 4 and 5
+#define EVENT_COMMAND_COMPLETE_ALLOWED_PACKETS_BYTE 2
+#define EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE 3  // Bytes 3 and 4
+#define EVENT_COMMAND_COMPLETE_STATUS_BYTE 5
+#define EVENT_COMMAND_COMPLETE_FIRST_PARAM_BYTE 6
+#define EVENT_LOCAL_HCI_VERSION_BYTE EVENT_COMMAND_COMPLETE_FIRST_PARAM_BYTE
+#define EVENT_LOCAL_LMP_VERSION_BYTE EVENT_LOCAL_HCI_VERSION_BYTE + 3
+
+#define EVENT_CONNECTION_COMPLETE_PARAM_LENGTH 11
+#define EVENT_CONNECTION_COMPLETE_TYPE 11
+#define EVENT_CONNECTION_COMPLETE_TYPE_SCO 0
+#define EVENT_CONNECTION_COMPLETE_TYPE_ACL 1
+#define EVENT_CONNECTION_COMPLETE_HANDLE_LSBYTE 3
+#define EVENT_COMMAND_STATUS_LENGTH 4
+
+#define EVENT_NUMBER_OF_COMPLETED_PACKETS_NUM_HANDLES 2
+
+#define ACL_BROADCAST_FLAG_OFFSET 6
+#define ACL_BROADCAST_FLAG_POINT_TO_POINT 0x0
+#define ACL_BROADCAST_POINT_TO_POINT \
+  (ACL_BROADCAST_FLAG_POINT_TO_POINT << ACL_BROADCAST_FLAG_OFFSET)
+
+#define ACL_PACKET_BOUNDARY_FLAG_OFFSET 4
+#define ACL_PACKET_BOUNDARY_FLAG_FIRST_AUTO_FLUSHABLE 0x2
+#define ACL_PACKET_BOUNDARY_FIRST_AUTO_FLUSHABLE \
+  (ACL_PACKET_BOUNDARY_FLAG_FIRST_AUTO_FLUSHABLE \
+   << ACL_PACKET_BOUNDARY_FLAG_OFFSET)
+
+// To be removed in VTS release builds
+#define ACL_HANDLE_QCA_DEBUG_MESSAGE 0xedc
+
+constexpr char kCallbackNameAclEventReceived[] = "aclDataReceived";
+constexpr char kCallbackNameHciEventReceived[] = "hciEventReceived";
+constexpr char kCallbackNameInitializationComplete[] = "initializationComplete";
+constexpr char kCallbackNameScoEventReceived[] = "scoDataReceived";
+constexpr char kCallbackNameIsoEventReceived[] = "isoDataReceived";
+
+class ThroughputLogger {
+ public:
+  ThroughputLogger(std::string task)
+      : task_(task), start_time_(std::chrono::steady_clock::now()) {}
+
+  ~ThroughputLogger() {
+    if (total_bytes_ == 0) return;
+    std::chrono::duration<double> duration =
+        std::chrono::steady_clock::now() - start_time_;
+    double s = duration.count();
+    if (s == 0) return;
+    double rate_kb = (static_cast<double>(total_bytes_) / s) / 1024;
+    ALOGD("%s %.1f KB/s (%zu bytes in %.3fs)", task_.c_str(), rate_kb,
+          total_bytes_, s);
+  }
+
+  void setTotalBytes(size_t total_bytes) { total_bytes_ = total_bytes; }
+
+ private:
+  size_t total_bytes_;
+  std::string task_;
+  std::chrono::steady_clock::time_point start_time_;
+};
+
+// The main test class for Bluetooth HIDL HAL.
+class BluetoothHidlTest : public ::testing::TestWithParam<std::string> {
+ public:
+  virtual void SetUp() override {
+    // currently test passthrough mode only
+    bluetooth = IBluetoothHci::getService(GetParam());
+    ASSERT_NE(bluetooth, nullptr);
+    ALOGI("%s: getService() for bluetooth is %s", __func__,
+          bluetooth->isRemote() ? "remote" : "local");
+
+    bluetooth_hci_death_recipient = new BluetoothHciDeathRecipient();
+    ASSERT_NE(bluetooth_hci_death_recipient, nullptr);
+    ASSERT_TRUE(
+        bluetooth->linkToDeath(bluetooth_hci_death_recipient, 0).isOk());
+
+    bluetooth_cb = new BluetoothHciCallbacks(*this);
+    ASSERT_NE(bluetooth_cb, nullptr);
+
+    max_acl_data_packet_length = 0;
+    max_sco_data_packet_length = 0;
+    max_acl_data_packets = 0;
+    max_sco_data_packets = 0;
+
+    initialized = false;
+    event_cb_count = 0;
+    acl_cb_count = 0;
+    sco_cb_count = 0;
+
+    ASSERT_FALSE(initialized);
+    // Should not be checked in production code
+    ASSERT_TRUE(bluetooth->initialize(bluetooth_cb).isOk());
+
+    bluetooth_cb->SetWaitTimeout(kCallbackNameInitializationComplete,
+                                 WAIT_FOR_INIT_TIMEOUT);
+    bluetooth_cb->SetWaitTimeout(kCallbackNameHciEventReceived,
+                                 WAIT_FOR_HCI_EVENT_TIMEOUT);
+    bluetooth_cb->SetWaitTimeout(kCallbackNameAclEventReceived,
+                                 WAIT_FOR_ACL_DATA_TIMEOUT);
+    bluetooth_cb->SetWaitTimeout(kCallbackNameScoEventReceived,
+                                 WAIT_FOR_SCO_DATA_TIMEOUT);
+
+    EXPECT_TRUE(
+        bluetooth_cb->WaitForCallback(kCallbackNameInitializationComplete)
+            .no_timeout);
+
+    ASSERT_TRUE(initialized);
+  }
+
+  virtual void TearDown() override {
+    ALOGI("TearDown");
+    // Should not be checked in production code
+    ASSERT_TRUE(bluetooth->close().isOk());
+    std::this_thread::sleep_for(INTERFACE_CLOSE_DELAY_MS);
+    handle_no_ops();
+    EXPECT_EQ(static_cast<size_t>(0), event_queue.size());
+    EXPECT_EQ(static_cast<size_t>(0), sco_queue.size());
+    EXPECT_EQ(static_cast<size_t>(0), acl_queue.size());
+    EXPECT_EQ(static_cast<size_t>(0), iso_queue.size());
+  }
+
+  void setBufferSizes();
+
+  // Functions called from within tests in loopback mode
+  void sendAndCheckHCI(int num_packets);
+  void sendAndCheckSCO(int num_packets, size_t size, uint16_t handle);
+  void sendAndCheckACL(int num_packets, size_t size, uint16_t handle);
+
+  // Helper functions to try to get a handle on verbosity
+  void enterLoopbackMode(std::vector<uint16_t>* sco_handles,
+                         std::vector<uint16_t>* acl_handles);
+  void handle_no_ops();
+  void wait_for_event(bool timeout_is_error);
+  void wait_for_command_complete_event(hidl_vec<uint8_t> cmd);
+  int wait_for_completed_packets_event(uint16_t handle);
+
+  class BluetoothHciDeathRecipient : public hidl_death_recipient {
+   public:
+    void serviceDied(
+        uint64_t /*cookie*/,
+        const android::wp<::android::hidl::base::V1_0::IBase>& /*who*/)
+        override {
+      FAIL();
+    }
+  };
+
+  // A simple test implementation of BluetoothHciCallbacks.
+  class BluetoothHciCallbacks
+      : public ::testing::VtsHalHidlTargetCallbackBase<BluetoothHidlTest>,
+        public IBluetoothHciCallbacks {
+    BluetoothHidlTest& parent_;
+
+   public:
+    BluetoothHciCallbacks(BluetoothHidlTest& parent) : parent_(parent){};
+
+    virtual ~BluetoothHciCallbacks() = default;
+
+    Return<void> initializationComplete(Status status) override {
+      parent_.initialized = (status == Status::SUCCESS);
+      NotifyFromCallback(kCallbackNameInitializationComplete);
+      ALOGV("%s (status = %d)", __func__, static_cast<int>(status));
+      return Void();
+    };
+
+    Return<void> hciEventReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& event) override {
+      parent_.event_cb_count++;
+      parent_.event_queue.push(event);
+      NotifyFromCallback(kCallbackNameHciEventReceived);
+      ALOGV("Event received (length = %d)", static_cast<int>(event.size()));
+      return Void();
+    };
+
+    Return<void> aclDataReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& data) override {
+      parent_.acl_cb_count++;
+      parent_.acl_queue.push(data);
+      NotifyFromCallback(kCallbackNameAclEventReceived);
+      return Void();
+    };
+
+    Return<void> scoDataReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& data) override {
+      parent_.sco_cb_count++;
+      parent_.sco_queue.push(data);
+      NotifyFromCallback(kCallbackNameScoEventReceived);
+      return Void();
+    };
+
+    Return<void> isoDataReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& data) override {
+      parent_.iso_cb_count++;
+      parent_.iso_queue.push(data);
+      NotifyFromCallback(kCallbackNameIsoEventReceived);
+      return Void();
+    };
+  };
+
+  sp<IBluetoothHci> bluetooth;
+  sp<BluetoothHciCallbacks> bluetooth_cb;
+  sp<BluetoothHciDeathRecipient> bluetooth_hci_death_recipient;
+  std::queue<hidl_vec<uint8_t>> event_queue;
+  std::queue<hidl_vec<uint8_t>> acl_queue;
+  std::queue<hidl_vec<uint8_t>> sco_queue;
+  std::queue<hidl_vec<uint8_t>> iso_queue;
+
+  bool initialized;
+
+  int event_cb_count;
+  int sco_cb_count;
+  int acl_cb_count;
+  int iso_cb_count;
+
+  int max_acl_data_packet_length;
+  int max_sco_data_packet_length;
+  int max_acl_data_packets;
+  int max_sco_data_packets;
+};
+
+// Discard NO-OPs from the event queue.
+void BluetoothHidlTest::handle_no_ops() {
+  while (event_queue.size() > 0) {
+    hidl_vec<uint8_t> event = event_queue.front();
+    EXPECT_GE(event.size(),
+              static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+    bool event_is_no_op =
+        (event[EVENT_CODE_BYTE] == EVENT_COMMAND_COMPLETE) &&
+        (event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE] == 0x00) &&
+        (event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1] == 0x00);
+    event_is_no_op |= (event[EVENT_CODE_BYTE] == EVENT_COMMAND_STATUS) &&
+                      (event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE] == 0x00) &&
+                      (event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE + 1] == 0x00);
+    if (event_is_no_op) {
+      event_queue.pop();
+    } else {
+      break;
+    }
+  }
+  // To be removed in VTS release builds
+  while (acl_queue.size() > 0) {
+    hidl_vec<uint8_t> acl_packet = acl_queue.front();
+    uint16_t connection_handle = acl_packet[1] & 0xF;
+    connection_handle <<= 8;
+    connection_handle |= acl_packet[0];
+    bool packet_is_no_op = connection_handle == ACL_HANDLE_QCA_DEBUG_MESSAGE;
+    if (packet_is_no_op) {
+      acl_queue.pop();
+    } else {
+      break;
+    }
+  }
+}
+
+// Receive an event, discarding NO-OPs.
+void BluetoothHidlTest::wait_for_event(bool timeout_is_error = true) {
+  hidl_vec<uint8_t> event;
+  do {
+    bool no_timeout =
+        bluetooth_cb->WaitForCallback(kCallbackNameHciEventReceived).no_timeout;
+    EXPECT_TRUE(no_timeout || !timeout_is_error);
+    if (no_timeout && timeout_is_error) {
+      EXPECT_LT(static_cast<size_t>(0), event_queue.size());
+    }
+    if (event_queue.size() == 0) {
+      // WaitForCallback timed out.
+      return;
+    }
+    handle_no_ops();
+  } while (event_queue.size() == 0);
+}
+
+// Wait until a COMMAND_COMPLETE is received.
+void BluetoothHidlTest::wait_for_command_complete_event(hidl_vec<uint8_t> cmd) {
+  wait_for_event();
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+
+  EXPECT_GT(event.size(),
+            static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+  EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+  EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+  EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+  EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+}
+
+// Send the command to read the controller's buffer sizes.
+void BluetoothHidlTest::setBufferSizes() {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_READ_BUFFER_SIZE;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_event();
+  if (event_queue.size() == 0) return;
+
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+
+  EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+  EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+  EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+  EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+
+  max_acl_data_packet_length =
+      event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 1] +
+      (event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 2] << 8);
+  max_sco_data_packet_length = event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 3];
+  max_acl_data_packets = event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 4] +
+                         (event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 5] << 8);
+  max_sco_data_packets = event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 6] +
+                         (event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 7] << 8);
+
+  ALOGD("%s: ACL max %d num %d SCO max %d num %d", __func__,
+        static_cast<int>(max_acl_data_packet_length),
+        static_cast<int>(max_acl_data_packets),
+        static_cast<int>(max_sco_data_packet_length),
+        static_cast<int>(max_sco_data_packets));
+}
+
+// Send an HCI command (in Loopback mode) and check the response.
+void BluetoothHidlTest::sendAndCheckHCI(int num_packets) {
+  ThroughputLogger logger = {__func__};
+  int command_size = 0;
+  for (int n = 0; n < num_packets; n++) {
+    // Send an HCI packet
+    std::vector<uint8_t> write_name = COMMAND_HCI_WRITE_LOCAL_NAME;
+    // With a name
+    char new_name[] = "John Jacob Jingleheimer Schmidt ___________________0";
+    size_t new_name_length = strlen(new_name);
+    for (size_t i = 0; i < new_name_length; i++)
+      write_name.push_back(static_cast<uint8_t>(new_name[i]));
+    // And the packet number
+    size_t i = new_name_length - 1;
+    for (int digits = n; digits > 0; digits = digits / 10, i--)
+      write_name[i] = static_cast<uint8_t>('0' + digits % 10);
+    // And padding
+    for (size_t i = 0; i < 248 - new_name_length; i++)
+      write_name.push_back(static_cast<uint8_t>(0));
+
+    hidl_vec<uint8_t> cmd = write_name;
+    bluetooth->sendHciCommand(cmd);
+
+    // Check the loopback of the HCI packet
+    wait_for_event();
+    if (event_queue.size() == 0) return;
+
+    hidl_vec<uint8_t> event = event_queue.front();
+    event_queue.pop();
+    size_t compare_length =
+        (cmd.size() > static_cast<size_t>(0xff) ? static_cast<size_t>(0xff)
+                                                : cmd.size());
+    EXPECT_GT(event.size(), compare_length + EVENT_FIRST_PAYLOAD_BYTE - 1);
+
+    EXPECT_EQ(EVENT_LOOPBACK_COMMAND, event[EVENT_CODE_BYTE]);
+    EXPECT_EQ(compare_length, event[EVENT_LENGTH_BYTE]);
+
+    // Don't compare past the end of the event.
+    if (compare_length + EVENT_FIRST_PAYLOAD_BYTE > event.size()) {
+      compare_length = event.size() - EVENT_FIRST_PAYLOAD_BYTE;
+      ALOGE("Only comparing %d bytes", static_cast<int>(compare_length));
+    }
+
+    if (n == num_packets - 1) {
+      command_size = cmd.size();
+    }
+
+    for (size_t i = 0; i < compare_length; i++)
+      EXPECT_EQ(cmd[i], event[EVENT_FIRST_PAYLOAD_BYTE + i]);
+  }
+  logger.setTotalBytes(command_size * num_packets * 2);
+}
+
+// Send a SCO data packet (in Loopback mode) and check the response.
+void BluetoothHidlTest::sendAndCheckSCO(int num_packets, size_t size,
+                                        uint16_t handle) {
+  ThroughputLogger logger = {__func__};
+  for (int n = 0; n < num_packets; n++) {
+    // Send a SCO packet
+    hidl_vec<uint8_t> sco_packet;
+    std::vector<uint8_t> sco_vector;
+    sco_vector.push_back(static_cast<uint8_t>(handle & 0xff));
+    sco_vector.push_back(static_cast<uint8_t>((handle & 0x0f00) >> 8));
+    sco_vector.push_back(static_cast<uint8_t>(size & 0xff));
+    sco_vector.push_back(static_cast<uint8_t>((size & 0xff00) >> 8));
+    for (size_t i = 0; i < size; i++) {
+      sco_vector.push_back(static_cast<uint8_t>(i + n));
+    }
+    sco_packet = sco_vector;
+    bluetooth->sendScoData(sco_vector);
+
+    // Check the loopback of the SCO packet
+    EXPECT_TRUE(bluetooth_cb->WaitForCallback(kCallbackNameScoEventReceived)
+                    .no_timeout);
+    hidl_vec<uint8_t> sco_loopback = sco_queue.front();
+    sco_queue.pop();
+
+    EXPECT_EQ(sco_packet.size(), sco_loopback.size());
+    size_t successful_bytes = 0;
+
+    for (size_t i = 0; i < sco_packet.size(); i++) {
+      if (sco_packet[i] == sco_loopback[i]) {
+        successful_bytes = i;
+      } else {
+        ALOGE("Miscompare at %d (expected %x, got %x)", static_cast<int>(i),
+              sco_packet[i], sco_loopback[i]);
+        ALOGE("At %d (expected %x, got %x)", static_cast<int>(i + 1),
+              sco_packet[i + 1], sco_loopback[i + 1]);
+        break;
+      }
+    }
+    EXPECT_EQ(sco_packet.size(), successful_bytes + 1);
+  }
+  logger.setTotalBytes(num_packets * size * 2);
+}
+
+// Send an ACL data packet (in Loopback mode) and check the response.
+void BluetoothHidlTest::sendAndCheckACL(int num_packets, size_t size,
+                                        uint16_t handle) {
+  ThroughputLogger logger = {__func__};
+  for (int n = 0; n < num_packets; n++) {
+    // Send an ACL packet
+    hidl_vec<uint8_t> acl_packet;
+    std::vector<uint8_t> acl_vector;
+    acl_vector.push_back(static_cast<uint8_t>(handle & 0xff));
+    acl_vector.push_back(static_cast<uint8_t>((handle & 0x0f00) >> 8) |
+                         ACL_BROADCAST_POINT_TO_POINT |
+                         ACL_PACKET_BOUNDARY_FIRST_AUTO_FLUSHABLE);
+    acl_vector.push_back(static_cast<uint8_t>(size & 0xff));
+    acl_vector.push_back(static_cast<uint8_t>((size & 0xff00) >> 8));
+    for (size_t i = 0; i < size; i++) {
+      acl_vector.push_back(static_cast<uint8_t>(i + n));
+    }
+    acl_packet = acl_vector;
+    bluetooth->sendAclData(acl_vector);
+
+    // Check the loopback of the ACL packet
+    EXPECT_TRUE(bluetooth_cb->WaitForCallback(kCallbackNameAclEventReceived)
+                    .no_timeout);
+    hidl_vec<uint8_t> acl_loopback = acl_queue.front();
+    acl_queue.pop();
+
+    EXPECT_EQ(acl_packet.size(), acl_loopback.size());
+    size_t successful_bytes = 0;
+
+    for (size_t i = 0; i < acl_packet.size(); i++) {
+      if (acl_packet[i] == acl_loopback[i]) {
+        successful_bytes = i;
+      } else {
+        ALOGE("Miscompare at %d (expected %x, got %x)", static_cast<int>(i),
+              acl_packet[i], acl_loopback[i]);
+        ALOGE("At %d (expected %x, got %x)", static_cast<int>(i + 1),
+              acl_packet[i + 1], acl_loopback[i + 1]);
+        break;
+      }
+    }
+    EXPECT_EQ(acl_packet.size(), successful_bytes + 1);
+  }
+  logger.setTotalBytes(num_packets * size * 2);
+}
+
+// Return the number of completed packets reported by the controller.
+int BluetoothHidlTest::wait_for_completed_packets_event(uint16_t handle) {
+  int packets_processed = 0;
+  wait_for_event(false);
+  if (event_queue.size() == 0) {
+    ALOGW("%s: WaitForCallback timed out.", __func__);
+    return packets_processed;
+  }
+  while (event_queue.size() > 0) {
+    hidl_vec<uint8_t> event = event_queue.front();
+    event_queue.pop();
+
+    EXPECT_EQ(EVENT_NUMBER_OF_COMPLETED_PACKETS, event[EVENT_CODE_BYTE]);
+    EXPECT_EQ(1, event[EVENT_NUMBER_OF_COMPLETED_PACKETS_NUM_HANDLES]);
+
+    uint16_t event_handle = event[3] + (event[4] << 8);
+    EXPECT_EQ(handle, event_handle);
+
+    packets_processed += event[5] + (event[6] << 8);
+  }
+  return packets_processed;
+}
+
+// Send local loopback command and initialize SCO and ACL handles.
+void BluetoothHidlTest::enterLoopbackMode(std::vector<uint16_t>* sco_handles,
+                                          std::vector<uint16_t>* acl_handles) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_WRITE_LOOPBACK_MODE_LOCAL;
+  bluetooth->sendHciCommand(cmd);
+
+  // Receive connection complete events with data channels
+  int connection_event_count = 0;
+  bool command_complete_received = false;
+  while (true) {
+    wait_for_event(false);
+    if (event_queue.size() == 0) {
+      // Fail if there was no event received or no connections completed.
+      EXPECT_TRUE(command_complete_received);
+      EXPECT_LT(0, connection_event_count);
+      return;
+    }
+    hidl_vec<uint8_t> event = event_queue.front();
+    event_queue.pop();
+    EXPECT_GT(event.size(),
+              static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+    if (event[EVENT_CODE_BYTE] == EVENT_CONNECTION_COMPLETE) {
+      EXPECT_GT(event.size(),
+                static_cast<size_t>(EVENT_CONNECTION_COMPLETE_TYPE));
+      EXPECT_EQ(event[EVENT_LENGTH_BYTE],
+                EVENT_CONNECTION_COMPLETE_PARAM_LENGTH);
+      uint8_t connection_type = event[EVENT_CONNECTION_COMPLETE_TYPE];
+
+      EXPECT_TRUE(connection_type == EVENT_CONNECTION_COMPLETE_TYPE_SCO ||
+                  connection_type == EVENT_CONNECTION_COMPLETE_TYPE_ACL);
+
+      // Save handles
+      uint16_t handle = event[EVENT_CONNECTION_COMPLETE_HANDLE_LSBYTE] |
+                        event[EVENT_CONNECTION_COMPLETE_HANDLE_LSBYTE + 1] << 8;
+      if (connection_type == EVENT_CONNECTION_COMPLETE_TYPE_SCO)
+        sco_handles->push_back(handle);
+      else
+        acl_handles->push_back(handle);
+
+      ALOGD("Connect complete type = %d handle = %d",
+            event[EVENT_CONNECTION_COMPLETE_TYPE], handle);
+      connection_event_count++;
+    } else {
+      EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+      EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+      EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+      EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+      command_complete_received = true;
+    }
+  }
+}
+
+// Empty test: Initialize()/Close() are called in SetUp()/TearDown().
+TEST_P(BluetoothHidlTest, InitializeAndClose) {}
+
+// Send an HCI Reset with sendHciCommand and wait for a command complete event.
+TEST_P(BluetoothHidlTest, HciReset) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_RESET;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_command_complete_event(cmd);
+}
+
+// Read and check the HCI version of the controller.
+TEST_P(BluetoothHidlTest, HciVersionTest) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_READ_LOCAL_VERSION_INFORMATION;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_event();
+  if (event_queue.size() == 0) return;
+
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+  EXPECT_GT(event.size(), static_cast<size_t>(EVENT_LOCAL_LMP_VERSION_BYTE));
+
+  EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+  EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+  EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+  EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+
+  EXPECT_LE(HCI_MINIMUM_HCI_VERSION, event[EVENT_LOCAL_HCI_VERSION_BYTE]);
+  EXPECT_LE(HCI_MINIMUM_LMP_VERSION, event[EVENT_LOCAL_LMP_VERSION_BYTE]);
+}
+
+// Send an unknown HCI command and wait for the error message.
+TEST_P(BluetoothHidlTest, HciUnknownCommand) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_SHOULD_BE_UNKNOWN;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_event();
+  if (event_queue.size() == 0) return;
+
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+
+  EXPECT_GT(event.size(),
+            static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+  if (event[EVENT_CODE_BYTE] == EVENT_COMMAND_COMPLETE) {
+    EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+    EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+    EXPECT_EQ(HCI_STATUS_UNKNOWN_HCI_COMMAND,
+              event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+  } else {
+    EXPECT_EQ(EVENT_COMMAND_STATUS, event[EVENT_CODE_BYTE]);
+    EXPECT_EQ(cmd[0], event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE]);
+    EXPECT_EQ(cmd[1], event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE + 1]);
+    EXPECT_EQ(HCI_STATUS_UNKNOWN_HCI_COMMAND,
+              event[EVENT_COMMAND_STATUS_STATUS_BYTE]);
+  }
+}
+
+// Enter loopback mode, but don't send any packets.
+TEST_P(BluetoothHidlTest, WriteLoopbackMode) {
+  std::vector<uint16_t> sco_connection_handles;
+  std::vector<uint16_t> acl_connection_handles;
+  enterLoopbackMode(&sco_connection_handles, &acl_connection_handles);
+}
+
+// Enter loopback mode and send single packets.
+TEST_P(BluetoothHidlTest, LoopbackModeSinglePackets) {
+  setBufferSizes();
+
+  std::vector<uint16_t> sco_connection_handles;
+  std::vector<uint16_t> acl_connection_handles;
+  enterLoopbackMode(&sco_connection_handles, &acl_connection_handles);
+
+  sendAndCheckHCI(1);
+
+  // This should work, but breaks on some current platforms.  Figure out how to
+  // grandfather older devices but test new ones.
+  if (0 && sco_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_sco_data_packet_length);
+    sendAndCheckSCO(1, max_sco_data_packet_length, sco_connection_handles[0]);
+    int sco_packets_sent = 1;
+    int completed_packets =
+        wait_for_completed_packets_event(sco_connection_handles[0]);
+    if (sco_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            sco_packets_sent, completed_packets);
+    }
+  }
+
+  if (acl_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_acl_data_packet_length);
+    sendAndCheckACL(1, max_acl_data_packet_length, acl_connection_handles[0]);
+    int acl_packets_sent = 1;
+    int completed_packets =
+        wait_for_completed_packets_event(acl_connection_handles[0]);
+    if (acl_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            acl_packets_sent, completed_packets);
+    }
+  }
+}
+
+// Enter loopback mode and send packets for bandwidth measurements.
+TEST_P(BluetoothHidlTest, LoopbackModeBandwidth) {
+  setBufferSizes();
+
+  std::vector<uint16_t> sco_connection_handles;
+  std::vector<uint16_t> acl_connection_handles;
+  enterLoopbackMode(&sco_connection_handles, &acl_connection_handles);
+
+  sendAndCheckHCI(NUM_HCI_COMMANDS_BANDWIDTH);
+
+  // This should work, but breaks on some current platforms.  Figure out how to
+  // grandfather older devices but test new ones.
+  if (0 && sco_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_sco_data_packet_length);
+    sendAndCheckSCO(NUM_SCO_PACKETS_BANDWIDTH, max_sco_data_packet_length,
+                    sco_connection_handles[0]);
+    int sco_packets_sent = NUM_SCO_PACKETS_BANDWIDTH;
+    int completed_packets =
+        wait_for_completed_packets_event(sco_connection_handles[0]);
+    if (sco_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            sco_packets_sent, completed_packets);
+    }
+  }
+
+  if (acl_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_acl_data_packet_length);
+    sendAndCheckACL(NUM_ACL_PACKETS_BANDWIDTH, max_acl_data_packet_length,
+                    acl_connection_handles[0]);
+    int acl_packets_sent = NUM_ACL_PACKETS_BANDWIDTH;
+    int completed_packets =
+        wait_for_completed_packets_event(acl_connection_handles[0]);
+    if (acl_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            acl_packets_sent, completed_packets);
+    }
+  }
+}
+
+INSTANTIATE_TEST_SUITE_P(
+    PerInstance, BluetoothHidlTest,
+    testing::ValuesIn(
+        android::hardware::getAllHalInstanceNames(IBluetoothHci::descriptor)),
+    android::hardware::PrintInstanceNameToString);
diff --git a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
index 49f9fe1..6505440 100644
--- a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
+++ b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
@@ -1494,7 +1494,7 @@
         ADD_FAILURE();
     }
 
-    std::lock_guard<std::mutex> l(mLock);
+    std::unique_lock<std::mutex> l(mLock);
     for (const auto& buf : buffers) {
         bool found = false;
         for (size_t idx = 0; idx < mOutstandingBufferIds.size(); idx++) {
@@ -1514,6 +1514,10 @@
         ALOGE("%s: unknown buffer ID %" PRIu64, __FUNCTION__, buf.bufferId);
         ADD_FAILURE();
     }
+    if (!hasOutstandingBuffersLocked()) {
+        l.unlock();
+        mFlushedCondition.notify_one();
+    }
     return Void();
 }
 
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index fb8d395..4bd8332 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -75,7 +75,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.bluetooth</name>
-        <version>1.0</version>
+        <version>1.0-1</version>
         <interface>
             <name>IBluetoothHci</name>
             <instance>default</instance>
@@ -256,7 +256,7 @@
     <hal format="hidl" optional="false">
         <name>android.hardware.keymaster</name>
         <version>3.0</version>
-        <version>4.0</version>
+        <version>4.0-1</version>
         <interface>
             <name>IKeymasterDevice</name>
             <instance>default</instance>
@@ -264,7 +264,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.keymaster</name>
-        <version>4.0</version>
+        <version>4.0-1</version>
         <interface>
             <name>IKeymasterDevice</name>
             <instance>strongbox</instance>
@@ -280,7 +280,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.media.c2</name>
-        <version>1.0</version>
+        <version>1.0-1</version>
         <interface>
             <name>IComponentStore</name>
             <regex-instance>default[0-9]*</regex-instance>
diff --git a/current.txt b/current.txt
index bc91af5..d5082af 100644
--- a/current.txt
+++ b/current.txt
@@ -579,12 +579,14 @@
 9d8ee57c490ffeaa28f702eaea8d198cb510e4bbfb99e6cb5f63e73341057c7c android.hardware.neuralnetworks@1.1::types
 fb382e986c10b8fbb797a8546e8f9ea6d1107bfe6f3fb7e57f6bbbf1f807a906 android.hardware.neuralnetworks@1.2::IDevice
 40e71cd693de5b832325c5d8f081f2ff20a7ba2b89d401cee5b4b3eb0e241681 android.hardware.neuralnetworks@1.2::IPreparedModel
-71c0f7127335e5b74d1615d5e7f129831b43ffbae5318ad0924d7d8d8910a859 android.hardware.neuralnetworks@1.2::types
+72de91c3feba4b19c159cd1c413cbea596b78240caa43e31194e20e6f5b05c49 android.hardware.neuralnetworks@1.2::types
 a785a57447a81e9c130eef6904c3a5c256076c6a04588c40620ebd6fa2660d77 android.hardware.radio@1.2::types
 1a6e2bd289f22931c526b21916910f1d4c436b7acb9556e4243de4ce8e6cc2e4 android.hardware.soundtrigger@2.0::ISoundTriggerHwCallback
 fd65298e1e09e0e3c781ab18305920d757dbe55a3b459ce17814ec5cf6dfee99 android.hardware.wifi@1.0::IWifiP2pIface
 
 # HALs released in Android R
+79e115c8f8970b8b914bafc66df5425e065fda4dcda97222966ef12451d2a1cc android.hardware.bluetooth@1.1::IBluetoothHci
+40ab2c6866c18d32baf6e49e3053949e79601f56963a791e93e68b9ee18f718d android.hardware.bluetooth@1.1::IBluetoothHciCallbacks
 07d0a252b2d8fa35887908a996ba395cf392968395fc30afab791f46e0c22a52 android.hardware.boot@1.1::IBootControl
 74049a402be913963edfdd80828a53736570e9d8124a1bf18166b6ed46a6b0ab android.hardware.boot@1.1::types
 c1aa508d00b66ed5feefea398fd5edf28fa651ac89773adad7dfda4e0a73a952 android.hardware.cas@1.2::ICas
@@ -597,10 +599,12 @@
 c228aaa27f66c48e147159a4f4996c5273191fece1b08de31bd171c61334855e android.hardware.keymaster@4.1::IKeymasterDevice
 adb0efdf1462e9b2e742c0dcadd598666aac551f178be06e755bfcdf5797abd0 android.hardware.keymaster@4.1::IOperation
 7a04ea5595ed418ca3e91c28b8bd7353dd988be9be7b0c8c9e64fb4b77bd4523 android.hardware.keymaster@4.1::types
+df9c79c4fdde2821550c6d5c3d07f5ec0adfb1b702561ce543c906ddef698703 android.hardware.media.c2@1.1::IComponent
+a3eddd9bbdc87e8c22764070037dd1154f1cf006e6fba93364c4f85d4c134a19 android.hardware.media.c2@1.1::IComponentStore
 9e59fffceed0dd72a9799e04505db5f777bbbea1af0695ba4107ef6d967c6fda android.hardware.neuralnetworks@1.3::IDevice
 4a6c3b3556da951b4def21ba579a227c022980fe4465df6cdfbe20628fa75f5a android.hardware.neuralnetworks@1.3::IPreparedModel
 94e803236398bed1febb11cc21051bc42ec003700139b099d6c479e02a7ca3c3 android.hardware.neuralnetworks@1.3::IPreparedModelCallback
-c511b1427b1c3f76af90967bbddaaf250db983a8d3abb9ff189fb5a807cf3d4d android.hardware.neuralnetworks@1.3::types
+103cb87c5ed46851badac097f8d190da60f39b5ab32d60e2e93f64d3014ea75c android.hardware.neuralnetworks@1.3::types
 3e01d4446cd69fd1c48f8572efd97487bc179564b32bd795800b97bbe10be37b android.hardware.wifi@1.4::IWifi
 a64467bae843569f0d465c5be7f0c7a5b987985b55a3ef4794dd5afc68538650 android.hardware.wifi.supplicant@1.3::ISupplicant
 44445b8a03d7b9e68b2fbd954672c18a8fce9e32851b0692f4f4ab3407f86ecb android.hardware.wifi.supplicant@1.3::ISupplicantStaIface
@@ -610,4 +614,4 @@
 274fb1254a6d1a97824ec5c880eeefc0e410dc6d3a2a4c34052201169d2b7de0 android.hardware.radio@1.5::types
 c8e81d912827a5d49b2ddcdc4eb4556c5d231a899a1dca879309e04210daa4a0 android.hardware.radio@1.5::IRadio
 a62a93faf173b14a6175b683ebf61ffa568dc61f81e369d2dce7b1265e86cf2f android.hardware.radio@1.5::IRadioIndication
-260ce05806d753d728f844d405e832179ed7d9b65986ec18fef3d21cf7285587 android.hardware.radio@1.5::IRadioResponse
+260ce05806d753d728f844d405e832179ed7d9b65986ec18fef3d21cf7285587 android.hardware.radio@1.5::IRadioResponse
\ No newline at end of file
diff --git a/graphics/common/aidl/Android.bp b/graphics/common/aidl/Android.bp
index 497c0f8..e0c7674 100644
--- a/graphics/common/aidl/Android.bp
+++ b/graphics/common/aidl/Android.bp
@@ -1,5 +1,6 @@
 aidl_interface {
     name: "vintf-graphics-common",
+    host_supported: true,
     vendor_available: true,
     vndk: {
         enabled: true,
diff --git a/graphics/common/aidl/android/hardware/graphics/common/ExtendableType.aidl b/graphics/common/aidl/android/hardware/graphics/common/ExtendableType.aidl
index 04d8710..495693c 100644
--- a/graphics/common/aidl/android/hardware/graphics/common/ExtendableType.aidl
+++ b/graphics/common/aidl/android/hardware/graphics/common/ExtendableType.aidl
@@ -34,7 +34,7 @@
      * For custom vendor types, the "name" field will be set to the name of the custom
      * @VendorStability vendor AIDL interface such as
      * "vendor.mycompanyname.graphics.common.Compression". The name of the vendor extension should
-     * contain the name of the company that owns the extension. Including the company
+     * contain the name of the owner of the extension. Including the company
      * name in the "name" field prevents type collisions between different vendors.
      */
     @utf8InCpp String name;
diff --git a/graphics/composer/2.4/IComposerCallback.hal b/graphics/composer/2.4/IComposerCallback.hal
index 5c3f8bd..fea24a1 100644
--- a/graphics/composer/2.4/IComposerCallback.hal
+++ b/graphics/composer/2.4/IComposerCallback.hal
@@ -32,4 +32,14 @@
      *        is expected to be called vsyncPeriodNanos nanoseconds after this call.
      */
     oneway onVsync_2_4(Display display, int64_t timestamp, VsyncPeriodNanos vsyncPeriodNanos);
+
+    /**
+     * Notifies the client that the previously reported timing for vsync period change has been
+     * updated. This may occur if the composer missed the deadline for changing the vsync period
+     * or the client submitted a refresh frame too late.
+     *
+     * @param display is the display which vsync period change is in progress
+     * @param updatedTimeline is the new timeline for the vsync period change.
+     */
+    oneway onVsyncPeriodTimingChanged(Display display, VsyncPeriodChangeTimeline updatedTimeline);
 };
diff --git a/graphics/composer/2.4/IComposerClient.hal b/graphics/composer/2.4/IComposerClient.hal
index c2102d5..f23536c 100644
--- a/graphics/composer/2.4/IComposerClient.hal
+++ b/graphics/composer/2.4/IComposerClient.hal
@@ -20,10 +20,23 @@
 import @2.1::Config;
 import @2.1::Display;
 import @2.1::Error;
+import @2.1::IComposerClient;
 import @2.3::IComposerClient;
 
 interface IComposerClient extends @2.3::IComposerClient {
     /**
+     * Display attributes queryable through getDisplayAttribute_2_4.
+     */
+    enum Attribute : @2.1::IComposerClient.Attribute {
+        /**
+         * The configuration group ID (as int32_t) this config is associated to.
+         * Switching between configurations within the same group may be done seamlessly
+         * in some conditions via setActiveConfigWithConstraints.
+         */
+        CONFIG_GROUP = 7,
+    };
+
+    /**
      * Required capabilities which are supported by the display. The
      * particular set of supported capabilities for a given display may be
      * retrieved using getDisplayCapabilities.
@@ -60,6 +73,7 @@
          * (i.e., the vsync period must not change before this time).
          */
         int64_t desiredTimeNanos;
+
         /**
          * If true, requires that the vsync period change must happen seamlessly without
          * a noticeable visual artifact.
@@ -74,7 +88,6 @@
      *
      * @param callback is the IComposerCallback object.
      */
-    @entry
     registerCallback_2_4(IComposerCallback callback);
 
     /**
@@ -99,25 +112,29 @@
     getDisplayConnectionType(Display display) generates (Error error, DisplayConnectionType type);
 
     /**
-     * Provides a list of the vsync periods supported by the display in the given configuration
+     * Returns a display attribute value for a particular display
+     * configuration.
      *
-     * @param display is the display for which the vsync periods are queried.
-     * @param config is the display configuration for which the vsync periods are queried.
-     *
+     * @param display is the display to query.
+     * @param config is the display configuration for which to return
+     *        attribute values.
      * @return error is NONE upon success. Otherwise,
-     *     BAD_DISPLAY when an invalid display handle was passed in.
-     *     BAD_CONFIG when an invalid config handle was passed in.
-     * @return supportedVsyncPeriods is a list of supported vsync periods.
+     *         BAD_DISPLAY when an invalid display handle was passed in.
+     *         BAD_CONFIG when config does not name a valid configuration for
+     *                    this display.
+     *         BAD_PARAMETER when attribute is unrecognized.
+     *         UNSUPPORTED when attribute cannot be queried for the config.
+     * @return value is the value of the attribute.
      */
-    getSupportedDisplayVsyncPeriods(Display display, Config config)
-        generates (Error error, vec<VsyncPeriodNanos> supportedVsyncPeriods);
+    getDisplayAttribute_2_4(Display display, Config config, Attribute attribute)
+        generates (Error error, int32_t value);
 
     /**
      * Retrieves which vsync period the display is currently using.
      *
      * If no display configuration is currently active, this function must
      * return BAD_CONFIG. If the vsync period is about to change due to a
-     * setActiveConfigAndVsyncPeriod call, this function must return the current vsync period
+     * setActiveConfigWithConstraints call, this function must return the current vsync period
      * until the change takes place.
      *
      * @param display is the display for which the vsync period is queried.
@@ -131,7 +148,8 @@
 
     /**
      * Sets the active configuration and the refresh rate for this display.
-     * If the config is the same as the current config, only the vsync period shall change.
+     * If the new config shares the same config group as the current config,
+     * only the vsync period shall change.
      * Upon returning, the given display configuration, except vsync period, must be active and
      * remain so until either this function is called again or the display is disconnected.
      * When the display starts to refresh at the new vsync period, onVsync_2_4 callback must be
@@ -139,21 +157,19 @@
      *
      * @param display is the display for which the active config is set.
      * @param config is the new display configuration.
-     * @param vsyncPeriodNanos is the new display vsync period.
      * @param vsyncPeriodChangeConstraints are the constraints required for changing vsync period.
      *
      * @return error is NONE upon success. Otherwise,
      *         BAD_DISPLAY when an invalid display handle was passed in.
      *         BAD_CONFIG when the configuration handle passed in is not valid
      *                    for this display.
-     *         BAD_VSYNC_PERIOD when an invalid vsync period is passed in.
+     *         SEAMLESS_NOT_ALLOWED when seamlessRequired was true but config provided doesn't
+     *                              share the same config group as the current config.
      *         SEAMLESS_NOT_POSSIBLE when seamlessRequired was true but the display cannot achieve
      *                               the vsync period change without a noticeable visual artifact.
-     * @return newVsyncAppliedTime is the time in CLOCK_MONOTONIC when the new display will start to
-     *                             refresh at the new vsync period.
+     * @return timeline is the timeline for the vsync period change.
      */
-    setActiveConfigAndVsyncPeriod(Display display, Config config,
-        VsyncPeriodNanos vsyncPeriodNanos,
+    setActiveConfigWithConstraints(Display display, Config config,
         VsyncPeriodChangeConstraints vsyncPeriodChangeConstraints)
-        generates (Error error, int64_t newVsyncAppliedTime);
+        generates (Error error, VsyncPeriodChangeTimeline timeline);
 };
diff --git a/graphics/composer/2.4/types.hal b/graphics/composer/2.4/types.hal
index b45d7a6..065f024 100644
--- a/graphics/composer/2.4/types.hal
+++ b/graphics/composer/2.4/types.hal
@@ -20,13 +20,36 @@
 
 enum Error : @2.1::Error {
     /**
-     * Invalid vsync period
+     * Seamless cannot be required for configurations that don't share a config group
      */
-    BAD_VSYNC_PERIOD = 9,
+    SEAMLESS_NOT_ALLOWED = 9,
     /**
      * Seamless requirements cannot be met
      */
     SEAMLESS_NOT_POSSIBLE = 10,
 };
 
+/**
+ * Timing for a vsync period change.
+ */
+struct VsyncPeriodChangeTimeline {
+    /**
+     * The time in CLOCK_MONOTONIC when the new display will start to refresh at
+     * the new vsync period.
+     */
+    int64_t newVsyncAppliedTimeNanos;
+
+    /**
+     * Set to true if the client is required to send a frame to be displayed before
+     * the change can take place.
+     */
+    bool refreshRequired;
+
+    /**
+     * The time in CLOCK_MONOTONIC when the client is expected to send the new frame.
+     * Should be ignored if refreshRequired is false.
+     */
+    int64_t refreshTimeNanos;
+};
+
 typedef uint32_t VsyncPeriodNanos;
diff --git a/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerClient.h b/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerClient.h
index ddf209b..4160ed9 100644
--- a/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerClient.h
+++ b/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerClient.h
@@ -76,6 +76,13 @@
             ALOGE_IF(!ret.isOk(), "failed to send onVsync_2_4: %s", ret.description().c_str());
         }
 
+        void onVsyncPeriodTimingChanged(Display display,
+                                        const VsyncPeriodChangeTimeline& updatedTimeline) override {
+            auto ret = mCallback->onVsyncPeriodTimingChanged(display, updatedTimeline);
+            ALOGE_IF(!ret.isOk(), "failed to send onVsyncPeriodTimingChanged: %s",
+                     ret.description().c_str());
+        }
+
       protected:
         const sp<IComposerCallback> mCallback;
         V2_1::hal::ComposerResources* const mResources;
@@ -104,13 +111,12 @@
         return Void();
     }
 
-    Return<void> getSupportedDisplayVsyncPeriods(
-            Display display, Config config,
-            IComposerClient::getSupportedDisplayVsyncPeriods_cb hidl_cb) override {
-        std::vector<VsyncPeriodNanos> supportedVsyncPeriods;
-        Error error =
-                mHal->getSupportedDisplayVsyncPeriods(display, config, &supportedVsyncPeriods);
-        hidl_cb(error, supportedVsyncPeriods);
+    Return<void> getDisplayAttribute_2_4(
+            Display display, Config config, IComposerClient::Attribute attribute,
+            IComposerClient::getDisplayAttribute_2_4_cb hidl_cb) override {
+        int32_t value = 0;
+        Error error = mHal->getDisplayAttribute_2_4(display, config, attribute, &value);
+        hidl_cb(error, value);
         return Void();
     }
 
@@ -122,15 +128,14 @@
         return Void();
     }
 
-    Return<void> setActiveConfigAndVsyncPeriod(
-            Display display, Config config, VsyncPeriodNanos vsyncPeriodNanos,
+    Return<void> setActiveConfigWithConstraints(
+            Display display, Config config,
             const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-            IComposerClient::setActiveConfigAndVsyncPeriod_cb hidl_cb) override {
-        int64_t newVsyncAppliedTime = 0;
-        Error error = mHal->setActiveConfigAndVsyncPeriod(display, config, vsyncPeriodNanos,
-                                                          vsyncPeriodChangeConstraints,
-                                                          &newVsyncAppliedTime);
-        hidl_cb(error, newVsyncAppliedTime);
+            IComposerClient::setActiveConfigWithConstraints_cb hidl_cb) override {
+        VsyncPeriodChangeTimeline timeline = {};
+        Error error = mHal->setActiveConfigWithConstraints(display, config,
+                                                           vsyncPeriodChangeConstraints, &timeline);
+        hidl_cb(error, timeline);
         return Void();
     }
 
diff --git a/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerHal.h b/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerHal.h
index 0739f62..89dbe66 100644
--- a/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerHal.h
+++ b/graphics/composer/2.4/utils/hal/include/composer-hal/2.4/ComposerHal.h
@@ -47,6 +47,8 @@
         virtual void onVsync(Display display, int64_t timestamp) = 0;
         virtual void onVsync_2_4(Display display, int64_t timestamp,
                                  VsyncPeriodNanos vsyncPeriodNanos) = 0;
+        virtual void onVsyncPeriodTimingChanged(Display display,
+                                                const VsyncPeriodChangeTimeline& timeline) = 0;
     };
 
     virtual void registerEventCallback_2_4(EventCallback_2_4* callback) = 0;
@@ -57,13 +59,14 @@
             Display display, std::vector<IComposerClient::DisplayCapability>* outCapabilities) = 0;
     virtual Error getDisplayConnectionType(Display display,
                                            IComposerClient::DisplayConnectionType* outType) = 0;
-    virtual Error getSupportedDisplayVsyncPeriods(
-            Display display, Config config, std::vector<VsyncPeriodNanos>* outVsyncPeriod) = 0;
+    virtual Error getDisplayAttribute_2_4(Display display, Config config,
+                                          IComposerClient::Attribute attribute,
+                                          int32_t* outValue) = 0;
     virtual Error getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriod) = 0;
-    virtual Error setActiveConfigAndVsyncPeriod(
-            Display display, Config config, VsyncPeriodNanos vsyncPeriodNanos,
+    virtual Error setActiveConfigWithConstraints(
+            Display display, Config config,
             const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-            int64_t* outNewVsyncAppliedTime) = 0;
+            VsyncPeriodChangeTimeline* timeline) = 0;
 };
 
 }  // namespace hal
diff --git a/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h b/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h
index 3420c8c..d59d0d5 100644
--- a/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h
+++ b/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h
@@ -25,6 +25,7 @@
 #include <android/hardware/graphics/composer/2.4/IComposerClient.h>
 #include <composer-hal/2.4/ComposerHal.h>
 #include <composer-passthrough/2.3/HwcHal.h>
+#include <hardware/hwcomposer_defs.h>
 
 namespace android {
 namespace hardware {
@@ -51,14 +52,22 @@
     void registerEventCallback_2_4(hal::ComposerHal::EventCallback_2_4* callback) override {
         mEventCallback_2_4 = callback;
 
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_HOTPLUG, this,
-                                   reinterpret_cast<hwc2_function_pointer_t>(hotplugHook));
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_REFRESH, this,
-                                   reinterpret_cast<hwc2_function_pointer_t>(refreshHook));
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC, this,
-                                   reinterpret_cast<hwc2_function_pointer_t>(vsyncHook));
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC_2_4, this,
-                                   reinterpret_cast<hwc2_function_pointer_t>(vsync_2_4_Hook));
+        BaseType2_1::mDispatch.registerCallback(
+                mDevice, HWC2_CALLBACK_HOTPLUG, this,
+                reinterpret_cast<hwc2_function_pointer_t>(hotplugHook));
+        BaseType2_1::mDispatch.registerCallback(
+                mDevice, HWC2_CALLBACK_REFRESH, this,
+                reinterpret_cast<hwc2_function_pointer_t>(refreshHook));
+        BaseType2_1::mDispatch.registerCallback(
+                mDevice, HWC2_CALLBACK_VSYNC, this,
+                reinterpret_cast<hwc2_function_pointer_t>(vsyncHook));
+        BaseType2_1::mDispatch.registerCallback(
+                mDevice, HWC2_CALLBACK_VSYNC_2_4, this,
+                reinterpret_cast<hwc2_function_pointer_t>(vsync_2_4_Hook));
+
+        BaseType2_1::mDispatch.registerCallback(
+                mDevice, HWC2_CALLBACK_VSYNC_PERIOD_TIMING_CHANGED, this,
+                reinterpret_cast<hwc2_function_pointer_t>(vsyncPeriodTimingChangedHook));
     }
 
     void unregisterEventCallback_2_4() override {
@@ -69,10 +78,12 @@
         //  - will never be called afterward
         //
         // which is likely incorrect
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_HOTPLUG, this, nullptr);
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_REFRESH, this, nullptr);
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC, this, nullptr);
-        mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC_2_4, this, nullptr);
+        BaseType2_1::mDispatch.registerCallback(mDevice, HWC2_CALLBACK_HOTPLUG, this, nullptr);
+        BaseType2_1::mDispatch.registerCallback(mDevice, HWC2_CALLBACK_REFRESH, this, nullptr);
+        BaseType2_1::mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC, this, nullptr);
+        BaseType2_1::mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC_2_4, this, nullptr);
+        BaseType2_1::mDispatch.registerCallback(mDevice, HWC2_CALLBACK_VSYNC_PERIOD_TIMING_CHANGED,
+                                                this, nullptr);
 
         mEventCallback_2_4 = nullptr;
     }
@@ -106,26 +117,16 @@
         return static_cast<Error>(error);
     }
 
-    Error getSupportedDisplayVsyncPeriods(Display display, Config config,
-                                          std::vector<VsyncPeriodNanos>* outVsyncPeriods) override {
-        if (!mDispatch.getSupportedDisplayVsyncPeriods) {
-            return Error::UNSUPPORTED;
+    Error getDisplayAttribute_2_4(Display display, Config config,
+                                  IComposerClient::Attribute attribute,
+                                  int32_t* outValue) override {
+        int32_t err = BaseType2_1::mDispatch.getDisplayAttribute(
+                mDevice, display, config, static_cast<int32_t>(attribute), outValue);
+        if (err != HWC2_ERROR_NONE && *outValue == -1) {
+            // Convert the error from hwcomposer2 to IComposerClient definition
+            return Error::BAD_PARAMETER;
         }
-
-        uint32_t count = 0;
-        int32_t error = mDispatch.getSupportedDisplayVsyncPeriods(mDevice, display, config, &count,
-                                                                  nullptr);
-        if (error != HWC2_ERROR_NONE) {
-            return static_cast<Error>(error);
-        }
-        outVsyncPeriods->resize(count);
-        error = mDispatch.getSupportedDisplayVsyncPeriods(mDevice, display, config, &count,
-                                                          outVsyncPeriods->data());
-        if (error != HWC2_ERROR_NONE) {
-            *outVsyncPeriods = std::vector<VsyncPeriodNanos>();
-            return static_cast<Error>(error);
-        }
-        return Error::NONE;
+        return static_cast<Error>(err);
     }
 
     Error getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriod) override {
@@ -140,11 +141,11 @@
         return Error::NONE;
     }
 
-    Error setActiveConfigAndVsyncPeriod(
-            Display display, Config config, VsyncPeriodNanos vsyncPeriodNanos,
+    Error setActiveConfigWithConstraints(
+            Display display, Config config,
             const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-            int64_t* outNewVsyncAppliedTime) override {
-        if (!mDispatch.setActiveConfigAndVsyncPeriod) {
+            VsyncPeriodChangeTimeline* timeline) override {
+        if (!mDispatch.setActiveConfigWithConstraints) {
             return Error::UNSUPPORTED;
         }
 
@@ -154,12 +155,15 @@
         vsync_period_change_constraints.seamlessRequired =
                 vsyncPeriodChangeConstraints.seamlessRequired;
 
-        int32_t error = mDispatch.setActiveConfigAndVsyncPeriod(
-                mDevice, display, config, vsyncPeriodNanos, &vsync_period_change_constraints,
-                outNewVsyncAppliedTime);
+        hwc_vsync_period_change_timeline_t out_timeline;
+        int32_t error = mDispatch.setActiveConfigWithConstraints(
+                mDevice, display, config, &vsync_period_change_constraints, &out_timeline);
         if (error != HWC2_ERROR_NONE) {
             return static_cast<Error>(error);
         }
+        timeline->newVsyncAppliedTimeNanos = out_timeline.newVsyncAppliedTimeNanos;
+        timeline->refreshRequired = out_timeline.refreshRequired;
+        timeline->refreshTimeNanos = out_timeline.refreshTimeNanos;
         return Error::NONE;
     }
 
@@ -171,13 +175,10 @@
 
         this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_CONNECTION_TYPE,
                                    &mDispatch.getDisplayConnectionType);
-        this->initOptionalDispatch(HWC2_FUNCTION_REGISTER_CALLBACK, &mDispatch.registerCallback);
-        this->initOptionalDispatch(HWC2_FUNCTION_GET_SUPPORTED_DISPLAY_VSYNC_PERIODS,
-                                   &mDispatch.getSupportedDisplayVsyncPeriods);
         this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_VSYNC_PERIOD,
                                    &mDispatch.getDisplayVsyncPeriod);
-        this->initOptionalDispatch(HWC2_FUNCTION_SET_ACTIVE_CONFIG_AND_VSYNC_PERIOD,
-                                   &mDispatch.setActiveConfigAndVsyncPeriod);
+        this->initOptionalDispatch(HWC2_FUNCTION_SET_ACTIVE_CONFIG_WITH_CONSTRAINTS,
+                                   &mDispatch.setActiveConfigWithConstraints);
         return true;
     }
 
@@ -205,13 +206,22 @@
         hal->mEventCallback_2_4->onVsync_2_4(display, timestamp, vsyncPeriodNanos);
     }
 
+    static void vsyncPeriodTimingChangedHook(hwc2_callback_data_t callbackData,
+                                             hwc2_display_t display,
+                                             hwc_vsync_period_change_timeline_t* updated_timeline) {
+        auto hal = static_cast<HwcHalImpl*>(callbackData);
+        VsyncPeriodChangeTimeline timeline;
+        timeline.newVsyncAppliedTimeNanos = updated_timeline->newVsyncAppliedTimeNanos;
+        timeline.refreshRequired = updated_timeline->refreshRequired;
+        timeline.refreshTimeNanos = updated_timeline->refreshTimeNanos;
+        hal->mEventCallback_2_4->onVsyncPeriodTimingChanged(display, timeline);
+    }
+
   private:
     struct {
         HWC2_PFN_GET_DISPLAY_CONNECTION_TYPE getDisplayConnectionType;
-        HWC2_PFN_REGISTER_CALLBACK registerCallback;
-        HWC2_PFN_GET_SUPPORTED_DISPLAY_VSYNC_PERIODS getSupportedDisplayVsyncPeriods;
         HWC2_PFN_GET_DISPLAY_VSYNC_PERIOD getDisplayVsyncPeriod;
-        HWC2_PFN_SET_ACTIVE_CONFIG_AND_VSYNC_PERIOD setActiveConfigAndVsyncPeriod;
+        HWC2_PFN_SET_ACTIVE_CONFIG_WITH_CONSTRAINTS setActiveConfigWithConstraints;
     } mDispatch = {};
 
     hal::ComposerHal::EventCallback_2_4* mEventCallback_2_4 = nullptr;
diff --git a/graphics/composer/2.4/utils/vts/ComposerVts.cpp b/graphics/composer/2.4/utils/vts/ComposerVts.cpp
index b02a59a..35ac23f 100644
--- a/graphics/composer/2.4/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.4/utils/vts/ComposerVts.cpp
@@ -70,15 +70,18 @@
     return error;
 }
 
-Error ComposerClient::getSupportedDisplayVsyncPeriods(
-        Display display, Config config, std::vector<VsyncPeriodNanos>* outSupportedVsyncPeriods) {
-    Error error = Error::NONE;
-    mClient->getSupportedDisplayVsyncPeriods(
-            display, config, [&](const auto& tmpError, const auto& tmpSupportedVsyncPeriods) {
-                error = tmpError;
-                *outSupportedVsyncPeriods = tmpSupportedVsyncPeriods;
+int32_t ComposerClient::getDisplayAttribute_2_4(
+        android::hardware::graphics::composer::V2_1::Display display,
+        android::hardware::graphics::composer::V2_1::Config config,
+        IComposerClient::Attribute attribute) {
+    int32_t value = 0;
+    mClient->getDisplayAttribute_2_4(
+            display, config, attribute, [&](const auto& tmpError, const auto& tmpValue) {
+                ASSERT_EQ(Error::NONE, tmpError) << "failed to get display attribute";
+                value = tmpValue;
             });
-    return error;
+
+    return value;
 }
 
 Error ComposerClient::getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriod) {
@@ -90,17 +93,16 @@
     return error;
 }
 
-Error ComposerClient::setActiveConfigAndVsyncPeriod(
-        Display display, Config config, VsyncPeriodNanos vsyncPeriodNanos,
+Error ComposerClient::setActiveConfigWithConstraints(
+        Display display, Config config,
         const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-        int64_t* outNewVsyncAppliedTime) {
+        VsyncPeriodChangeTimeline* timeline) {
     Error error = Error::NONE;
-    mClient->setActiveConfigAndVsyncPeriod(
-            display, config, vsyncPeriodNanos, vsyncPeriodChangeConstraints,
-            [&](const auto& tmpError, const auto& tmpNewVsyncAppliedTime) {
-                error = tmpError;
-                *outNewVsyncAppliedTime = tmpNewVsyncAppliedTime;
-            });
+    mClient->setActiveConfigWithConstraints(display, config, vsyncPeriodChangeConstraints,
+                                            [&](const auto& tmpError, const auto& tmpTimeline) {
+                                                error = tmpError;
+                                                *timeline = tmpTimeline;
+                                            });
     return error;
 }
 
diff --git a/graphics/composer/2.4/utils/vts/include/composer-vts/2.4/ComposerVts.h b/graphics/composer/2.4/utils/vts/include/composer-vts/2.4/ComposerVts.h
index 5db3e16..83e74ed 100644
--- a/graphics/composer/2.4/utils/vts/include/composer-vts/2.4/ComposerVts.h
+++ b/graphics/composer/2.4/utils/vts/include/composer-vts/2.4/ComposerVts.h
@@ -74,15 +74,15 @@
     Error getDisplayConnectionType(Display display,
                                    IComposerClient::DisplayConnectionType* outType);
 
-    Error getSupportedDisplayVsyncPeriods(Display display, Config config,
-                                          std::vector<VsyncPeriodNanos>* outSupportedVsyncPeriods);
+    int32_t getDisplayAttribute_2_4(Display display, Config config,
+                                    IComposerClient::Attribute attribute);
 
     Error getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriods);
 
-    Error setActiveConfigAndVsyncPeriod(
-            Display display, Config config, VsyncPeriodNanos vsyncPeriodNanos,
+    Error setActiveConfigWithConstraints(
+            Display display, Config config,
             const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-            int64_t* outNewVsyncAppliedTime);
+            VsyncPeriodChangeTimeline* timeline);
 
   private:
     const sp<IComposerClient> mClient;
diff --git a/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp b/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp
index 2c87666..f038f55 100644
--- a/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp
+++ b/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp
@@ -114,7 +114,7 @@
 
     void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
 
-    void Test_setActiveConfigAndVsyncPeriod(
+    void Test_setActiveConfigWithConstraints(
             const IComposerClient::VsyncPeriodChangeConstraints& constraints);
 
     std::unique_ptr<Composer> mComposer;
@@ -194,42 +194,28 @@
     }
 }
 
-TEST_P(GraphicsComposerHidlTest, getSupportedDisplayVsyncPeriods_BadDisplay) {
-    std::vector<VsyncPeriodNanos> supportedVsyncPeriods;
-    EXPECT_EQ(Error::BAD_DISPLAY, mComposerClient->getSupportedDisplayVsyncPeriods(
-                                          mInvalidDisplayId, Config(0), &supportedVsyncPeriods));
-}
+TEST_P(GraphicsComposerHidlTest, GetDisplayAttribute_2_4) {
+    std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        const std::array<IComposerClient::Attribute, 4> requiredAttributes = {{
+                IComposerClient::Attribute::WIDTH,
+                IComposerClient::Attribute::HEIGHT,
+                IComposerClient::Attribute::VSYNC_PERIOD,
+                IComposerClient::Attribute::CONFIG_GROUP,
+        }};
+        for (auto attribute : requiredAttributes) {
+            mComposerClient->getDisplayAttribute_2_4(mPrimaryDisplay, config, attribute);
+        }
 
-TEST_P(GraphicsComposerHidlTest, getSupportedDisplayVsyncPeriods_BadConfig) {
-    for (Display display : mComposerCallback->getDisplays()) {
-        Config invalidConfigId = GetInvalidConfigId(display);
-        std::vector<VsyncPeriodNanos> supportedVsyncPeriods;
-        EXPECT_EQ(Error::BAD_CONFIG, mComposerClient->getSupportedDisplayVsyncPeriods(
-                                             display, invalidConfigId, &supportedVsyncPeriods));
-    }
-}
-
-TEST_P(GraphicsComposerHidlTest, getSupportedDisplayVsyncPeriods) {
-    for (Display display : mComposerCallback->getDisplays()) {
-        for (Config config : mComposerClient->getDisplayConfigs(display)) {
-            std::vector<VsyncPeriodNanos> supportedVsyncPeriods;
-
-            // Get the default vsync period from the config
-            VsyncPeriodNanos defaultVsyncPeiord = mComposerClient->getDisplayAttribute(
-                    display, config, IComposerClient::Attribute::VSYNC_PERIOD);
-            // Get all supported vsync periods for this config
-            EXPECT_EQ(Error::NONE, mComposerClient->getSupportedDisplayVsyncPeriods(
-                                           display, config, &supportedVsyncPeriods));
-            // Default vsync period must be present in the list
-            EXPECT_NE(std::find(supportedVsyncPeriods.begin(), supportedVsyncPeriods.end(),
-                                defaultVsyncPeiord),
-                      supportedVsyncPeriods.end());
-
-            // Each vsync period must be unique
-            std::unordered_set<VsyncPeriodNanos> vsyncPeriodSet;
-            for (VsyncPeriodNanos vsyncPeriodNanos : supportedVsyncPeriods) {
-                EXPECT_TRUE(vsyncPeriodSet.insert(vsyncPeriodNanos).second);
-            }
+        const std::array<IComposerClient::Attribute, 2> optionalAttributes = {{
+                IComposerClient::Attribute::DPI_X,
+                IComposerClient::Attribute::DPI_Y,
+        }};
+        for (auto attribute : optionalAttributes) {
+            mComposerClient->getRaw()->getDisplayAttribute_2_4(
+                    mPrimaryDisplay, config, attribute, [&](const auto& tmpError, const auto&) {
+                        EXPECT_TRUE(tmpError == Error::NONE || tmpError == Error::UNSUPPORTED);
+                    });
         }
     }
 }
@@ -240,20 +226,40 @@
               mComposerClient->getDisplayVsyncPeriod(mInvalidDisplayId, &vsyncPeriodNanos));
 }
 
-TEST_P(GraphicsComposerHidlTest, setActiveConfigAndVsyncPeriod_BadDisplay) {
-    int64_t newVsyncAppliedTime;
+TEST_P(GraphicsComposerHidlTest, getDisplayVsyncPeriod) {
+    for (Display display : mComposerCallback->getDisplays()) {
+        for (Config config : mComposerClient->getDisplayConfigs(display)) {
+            mComposerClient->setActiveConfig(display, config);
+
+            VsyncPeriodNanos vsyncPeriodNanos;
+            VsyncPeriodNanos expectedvsyncPeriodNanos = mComposerClient->getDisplayAttribute_2_4(
+                    display, config, IComposerClient::IComposerClient::Attribute::VSYNC_PERIOD);
+            int retryCount = 100;
+            do {
+                std::this_thread::sleep_for(10ms);
+                EXPECT_EQ(Error::NONE,
+                          mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));
+                --retryCount;
+            } while (retryCount > 0);
+
+            EXPECT_EQ(vsyncPeriodNanos, expectedvsyncPeriodNanos);
+        }
+    }
+}
+
+TEST_P(GraphicsComposerHidlTest, setActiveConfigWithConstraints_BadDisplay) {
+    VsyncPeriodChangeTimeline timeline;
     IComposerClient::VsyncPeriodChangeConstraints constraints;
 
     constraints.seamlessRequired = false;
     constraints.desiredTimeNanos = systemTime();
 
-    EXPECT_EQ(Error::BAD_DISPLAY, mComposerClient->setActiveConfigAndVsyncPeriod(
-                                          mInvalidDisplayId, Config(0), VsyncPeriodNanos(0),
-                                          constraints, &newVsyncAppliedTime));
+    EXPECT_EQ(Error::BAD_DISPLAY, mComposerClient->setActiveConfigWithConstraints(
+                                          mInvalidDisplayId, Config(0), constraints, &timeline));
 }
 
-TEST_P(GraphicsComposerHidlTest, setActiveConfigAndVsyncPeriod_BadConfig) {
-    int64_t newVsyncAppliedTime;
+TEST_P(GraphicsComposerHidlTest, setActiveConfigWithConstraints_BadConfig) {
+    VsyncPeriodChangeTimeline timeline;
     IComposerClient::VsyncPeriodChangeConstraints constraints;
 
     constraints.seamlessRequired = false;
@@ -261,93 +267,114 @@
 
     for (Display display : mComposerCallback->getDisplays()) {
         Config invalidConfigId = GetInvalidConfigId(display);
-        EXPECT_EQ(Error::BAD_CONFIG, mComposerClient->setActiveConfigAndVsyncPeriod(
-                                             display, invalidConfigId, VsyncPeriodNanos(0),
-                                             constraints, &newVsyncAppliedTime));
+        EXPECT_EQ(Error::BAD_CONFIG, mComposerClient->setActiveConfigWithConstraints(
+                                             display, invalidConfigId, constraints, &timeline));
     }
 }
 
-TEST_P(GraphicsComposerHidlTest, setActiveConfigAndVsyncPeriod_BadVsyncPeriod) {
-    int64_t newVsyncAppliedTime;
+TEST_P(GraphicsComposerHidlTest, setActiveConfigWithConstraints_SeamlessNotAllowed) {
+    VsyncPeriodChangeTimeline timeline;
     IComposerClient::VsyncPeriodChangeConstraints constraints;
 
-    constraints.seamlessRequired = false;
+    constraints.seamlessRequired = true;
     constraints.desiredTimeNanos = systemTime();
 
     for (Display display : mComposerCallback->getDisplays()) {
         for (Config config : mComposerClient->getDisplayConfigs(display)) {
-            EXPECT_EQ(Error::BAD_VSYNC_PERIOD, mComposerClient->setActiveConfigAndVsyncPeriod(
-                                                       display, config, VsyncPeriodNanos(0),
-                                                       constraints, &newVsyncAppliedTime));
-        }
-    }
-}
+            int32_t configGroup = mComposerClient->getDisplayAttribute_2_4(
+                    display, config, IComposerClient::IComposerClient::Attribute::CONFIG_GROUP);
 
-void GraphicsComposerHidlTest::Test_setActiveConfigAndVsyncPeriod(
-        const IComposerClient::VsyncPeriodChangeConstraints& constraints) {
-    int64_t newVsyncAppliedTime;
-
-    for (Display display : mComposerCallback->getDisplays()) {
-        for (Config config : mComposerClient->getDisplayConfigs(display)) {
-            std::vector<VsyncPeriodNanos> supportedVsyncPeriods;
-
-            EXPECT_EQ(Error::NONE, mComposerClient->getSupportedDisplayVsyncPeriods(
-                                           display, config, &supportedVsyncPeriods));
-            for (VsyncPeriodNanos newVsyncPeriod : supportedVsyncPeriods) {
-                VsyncPeriodNanos vsyncPeriodNanos;
-                EXPECT_EQ(Error::NONE,
-                          mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));
-
-                if (vsyncPeriodNanos == newVsyncPeriod) {
-                    continue;
+            for (Config otherConfig : mComposerClient->getDisplayConfigs(display)) {
+                int32_t otherConfigGroup = mComposerClient->getDisplayAttribute_2_4(
+                        display, otherConfig,
+                        IComposerClient::IComposerClient::Attribute::CONFIG_GROUP);
+                if (configGroup != otherConfigGroup) {
+                    mComposerClient->setActiveConfig(display, config);
+                    EXPECT_EQ(Error::SEAMLESS_NOT_ALLOWED,
+                              mComposerClient->setActiveConfigWithConstraints(
+                                      display, otherConfig, constraints, &timeline));
                 }
-
-                EXPECT_EQ(Error::NONE, mComposerClient->setActiveConfigAndVsyncPeriod(
-                                               display, config, newVsyncPeriod, constraints,
-                                               &newVsyncAppliedTime));
-
-                EXPECT_TRUE(newVsyncAppliedTime >= constraints.desiredTimeNanos);
-
-                // Refresh rate should change within a reasonable time
-                constexpr nsecs_t kReasonableTimeForChange = 1'000'000'000;  // 1 second
-                EXPECT_TRUE(newVsyncAppliedTime - constraints.desiredTimeNanos <=
-                            kReasonableTimeForChange);
-
-                while (systemTime() <= newVsyncAppliedTime) {
-                    EXPECT_EQ(Error::NONE,
-                              mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));
-                    if (systemTime() <= constraints.desiredTimeNanos) {
-                        EXPECT_NE(vsyncPeriodNanos, newVsyncPeriod);
-                    }
-
-                    if (vsyncPeriodNanos == newVsyncPeriod) {
-                        break;
-                    }
-                    std::this_thread::sleep_for(10ms);
-                }
-                EXPECT_EQ(Error::NONE,
-                          mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));
-                EXPECT_EQ(vsyncPeriodNanos, newVsyncPeriod);
             }
         }
     }
 }
 
-TEST_P(GraphicsComposerHidlTest, setActiveConfigAndVsyncPeriod) {
+void GraphicsComposerHidlTest::Test_setActiveConfigWithConstraints(
+        const IComposerClient::VsyncPeriodChangeConstraints& constraints) {
+    VsyncPeriodChangeTimeline timeline = {};
+
+    for (Display display : mComposerCallback->getDisplays()) {
+        for (Config config : mComposerClient->getDisplayConfigs(display)) {
+            mComposerClient->setActiveConfig(display, config);
+
+            int32_t configVsyncPeriod = mComposerClient->getDisplayAttribute_2_4(
+                    display, config, IComposerClient::IComposerClient::Attribute::VSYNC_PERIOD);
+            for (Config otherConfig : mComposerClient->getDisplayConfigs(display)) {
+                if (config == otherConfig) {
+                    continue;
+                }
+
+                int32_t otherVsyncPeriod = mComposerClient->getDisplayAttribute_2_4(
+                        display, otherConfig,
+                        IComposerClient::IComposerClient::Attribute::VSYNC_PERIOD);
+
+                if (configVsyncPeriod == otherVsyncPeriod) {
+                    continue;
+                }
+
+                EXPECT_EQ(Error::NONE, mComposerClient->setActiveConfigWithConstraints(
+                                               display, otherConfig, constraints, &timeline));
+
+                if (timeline.refreshRequired) {
+                    // TODO(b/143775556): handle this case;
+                    continue;
+                }
+
+                EXPECT_TRUE(timeline.newVsyncAppliedTimeNanos >= constraints.desiredTimeNanos);
+
+                // Refresh rate should change within a reasonable time
+                constexpr nsecs_t kReasonableTimeForChange = 1'000'000'000;  // 1 second
+                EXPECT_TRUE(timeline.newVsyncAppliedTimeNanos - constraints.desiredTimeNanos <=
+                            kReasonableTimeForChange);
+
+                while (systemTime() <= timeline.newVsyncAppliedTimeNanos) {
+                    VsyncPeriodNanos vsyncPeriodNanos;
+                    EXPECT_EQ(Error::NONE,
+                              mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));
+
+                    if (systemTime() <= constraints.desiredTimeNanos) {
+                        EXPECT_NE(vsyncPeriodNanos, otherVsyncPeriod);
+                    }
+
+                    if (vsyncPeriodNanos == otherVsyncPeriod) {
+                        break;
+                    }
+                    std::this_thread::sleep_for(10ms);
+                }
+                VsyncPeriodNanos vsyncPeriodNanos;
+                EXPECT_EQ(Error::NONE,
+                          mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));
+                EXPECT_EQ(vsyncPeriodNanos, otherVsyncPeriod);
+            }
+        }
+    }
+}
+
+TEST_P(GraphicsComposerHidlTest, setActiveConfigWithConstraints) {
     IComposerClient::VsyncPeriodChangeConstraints constraints;
 
     constraints.seamlessRequired = false;
     constraints.desiredTimeNanos = systemTime();
-    Test_setActiveConfigAndVsyncPeriod(constraints);
+    Test_setActiveConfigWithConstraints(constraints);
 }
 
-TEST_P(GraphicsComposerHidlTest, setActiveConfigAndVsyncPeriod_delayed) {
+TEST_P(GraphicsComposerHidlTest, setActiveConfigWithConstraints_delayed) {
     IComposerClient::VsyncPeriodChangeConstraints constraints;
 
     constexpr auto kDelayForChange = 300ms;
     constraints.seamlessRequired = false;
     constraints.desiredTimeNanos = systemTime() + kDelayForChange.count();
-    Test_setActiveConfigAndVsyncPeriod(constraints);
+    Test_setActiveConfigWithConstraints(constraints);
 }
 
 INSTANTIATE_TEST_SUITE_P(
diff --git a/graphics/mapper/4.0/IMapper.hal b/graphics/mapper/4.0/IMapper.hal
index 640539f..4560b06 100644
--- a/graphics/mapper/4.0/IMapper.hal
+++ b/graphics/mapper/4.0/IMapper.hal
@@ -35,18 +35,20 @@
          */
         uint32_t width;
 
-       /**
-        * The height specifies how many rows of pixels must be in the
-        * allocated buffer.
-        */
+        /**
+         * The height specifies how many rows of pixels must be in the
+         * allocated buffer.
+         */
         uint32_t height;
 
-       /**
-        * The number of image layers that must be in the allocated buffer.
-        */
+        /**
+         * The number of image layers that must be in the allocated buffer.
+         */
         uint32_t layerCount;
 
-        /** Buffer pixel format. */
+        /**
+         * Buffer pixel format.
+         */
         PixelFormat format;
 
         /**
@@ -309,5 +311,247 @@
             generates (Error error,
                        bool supported);
 
+
+    /**
+     * Description for get(...), set(...) and getFromBufferDescriptorInfo(...)
+     *
+     * ------------ Overview -----------------------------------
+     * Gralloc 4 adds support for getting and setting buffer metadata on a buffer.
+     *
+     * To get buffer metadata, the client passes in a buffer handle and a token that
+     * represents the type of buffer metadata they would like to get. IMapper returns
+     * a byte stream that contains the buffer metadata. To set the buffer metadata, the
+     * client passes in a buffer handle and a token that represents the type of buffer
+     * metadata they would like to set and a byte stream that contains the buffer metadata
+     * they are setting.
+     *
+     * Buffer metadata is global for a buffer. When the metadata is set on the buffer
+     * in a process, the updated metadata should be available to all other processes.
+     * Please see "Storing and Propagating Metadata" below for more details.
+     *
+     * The getter and setter functions have been optimized for easy vendor extension.
+     * They do not require a formal HIDL extension to add support for getting and setting
+     * vendor defined buffer metadata. In order to allow easy extension, the types used
+     * here are not typical HIDL types. See "Buffer Metadata Token" and
+     * "Buffer Metadata Stream" below for more details.
+     *
+     * ------------ Storing and Propagating Metadata -----------
+     * Buffer metadata must be global. Any changes to the metadata must be propagated
+     * to all other processes immediately. Vendors may chose how they would like support
+     * this functionality.
+     *
+     * We recommend supporting this functionality by allocating an extra page of shared
+     * memory and storing it in the buffer's native_handle_t. The buffer metadata can
+     * be stored in the extra page of shared memory. Set operations are automatically
+     * propagated to all other processes.
+     *
+     * ------------ Buffer Metadata Synchronization ------------
+     * There are no explicit buffer metadata synchronization primitives. Many devices
+     * before gralloc 4 already support getting and setting of global buffer metadata
+     * with no explicit synchronization primitives. Adding synchronization primitives
+     * would just add unnecessary complexity.
+     *
+     * The general rule is if a process has permission to write to a buffer, they
+     * have permission to write to the buffer's metadata. If a process has permission
+     * to read from a buffer, they have permission to read the buffer's metadata.
+     *
+     * There is one exception to this rule. Fences CANNOT be used to protect a buffer's
+     * metadata. A process should finish writing to a buffer's metadata before
+     * sending the buffer to another process that will read or write to the buffer.
+     * This exception is needed because sometimes userspace needs to read the
+     * buffer's metadata before the buffer's contents are ready.
+     *
+     * As a simple example: an app renders to a buffer and then displays the buffer.
+     * In this example when the app renders to the buffer, both the buffer and its
+     * metadata need to be updated. The app's process queues up its work on the GPU
+     * and gets back an acquire fence. The app's process must update the buffer's
+     * metadata before enqueuing the buffer to SurfaceFlinger. The app process CANNOT
+     * update the buffer's metadata after enqueuing the buffer. When HardwareComposer
+     * receives the buffer, it is immediately safe to read the buffer's metadata
+     * and use it to program the display driver. To read the buffer's contents,
+     * display driver must still wait on the acquire fence.
+     *
+     * ------------ Buffer Metadata Token ----------------------
+     * In order to allow arbitrary vendor defined metadata, we could not use a
+     * HIDL enum as the buffer metadata token. Extending a HIDL enum requires a full
+     * HIDL extension. We also could not use a simple non-HIDL enum because vendor
+     * defined enums from different vendors could collide. Instead we have defined
+     * a struct that has a string representing the enum type and an int that
+     * represents the enum value. The string protects different enum values from
+     * colliding.
+     *
+     * The token struct (MetadataType) is defined as a HIDL struct since it
+     * is passed into a HIDL function. The standard buffer metadata types are NOT
+     * defined as a HIDL enum because it would have required a new IMapper version
+     * just to add future standard buffer metadata types. By putting the enum in the
+     * stable AIDL (hardware/interfaces/graphics/common/aidl/android/hardware/
+     * graphics/common/StandardMetadataType.aidl), vendors will be able to optionally
+     * choose to support future standard buffer metadata types without upgrading
+     * HIDL versions. For more information see the description of "struct MetadataType".
+     *
+     * ------------ Buffer Metadata Stream ---------------------
+     * The buffer metadata is get and set as a byte stream (vec<uint8_t>). By getting
+     * and setting buffer metadata as a byte stream, vendors can use the standard
+     * getters and setter functions defined here. Vendors do NOT need to add their own
+     * getters and setter functions for each new type of buffer metadata.
+     *
+     * Converting buffer metadata into a byte stream can be non-trivial. For the standard
+     * buffer metadata types defined in StandardMetadataType.aidl, there are also
+     * support functions that will encode the buffer metadata into a byte stream
+     * and decode the buffer metadata from a byte stream. We STRONGLY recommend using
+     * these support functions. The framework will use them when getting and setting
+     * metadata. The support functions are defined in
+     * frameworks/native/libs/gralloc/types/include/gralloctypes/Gralloc4.h.
+     */
+
+    /**
+     * MetadataType represents the different types of buffer metadata that could be
+     * associated with a buffer. It is used by IMapper to help get and set buffer metadata
+     * on the buffer's native handle.
+     *
+     * Standard buffer metadata will have the name field set to
+     * "android.hardware.graphics.common.StandardMetadataType" and will contain values
+     * from StandardMetadataType.aidl.
+     *
+     * This struct should be "extended" by devices that use a proprietary or non-standard
+     * buffer metadata. To extend the struct, first create a custom @VendorStability vendor
+     * AIDL interface that defines the new type(s) you would like to support. Set the
+     * struct's name field to the custom aidl interface's name
+     * (eg. "vendor.mycompanyname.graphics.common.MetadataType"). Set the struct's value
+     * field to the custom @VendorStabilty vendor AIDL interface.
+     *
+     * Each company should create their own StandardMetadataType.aidl extension. The name
+     * field prevents values from different companies from colliding.
+     */
+    struct MetadataType {
+        string name;
+        int64_t value;
+    };
+
+    /**
+     * Gets the buffer metadata for a given MetadataType.
+     *
+     * Buffer metadata can be changed after allocation so clients should avoid "caching"
+     * the buffer metadata. For example, if the video resolution changes and the buffers
+     * are not reallocated, several buffer metadata values may change without warning.
+     * Clients should not expect the values to be constant. They should requery them every
+     * frame. The only exception is buffer metadata that is determined at allocation
+     * time. For StandardMetadataType values, only BUFFER_ID, NAME, WIDTH,
+     * HEIGHT, LAYER_COUNT, PIXEL_FORMAT_REQUESTED and USAGE are safe to cache because
+     * they are determined at allocation time.
+     *
+     * @param buffer Buffer containing desired metadata
+     * @param metadataType MetadataType for the metadata value being queried
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the raw handle is invalid.
+     *     - `NO_RESOURCES` if the get cannot be fullfilled due to unavailability of
+     *        resources.
+     *     - `UNSUPPORTED` when metadataType is unknown/unsupported.
+     *        IMapper must support getting all StandardMetadataType.aidl values defined
+     *        at the time the device first launches.
+     * @return metadata Vector of bytes representing the buffer metadata associated with
+     *  the MetadataType.
+     */
+    get(pointer buffer, MetadataType metadataType)
+            generates (Error error,
+                       vec<uint8_t> metadata);
+
+    /**
+     * Sets the global value for a given MetadataType.
+     *
+     * Metadata fields are not required to be settable. This function can
+     * return Error::UNSUPPORTED whenever it doesn't support setting a
+     * particular Metadata field.
+     *
+     * The framework may attempt to set the following StandardMetadataType
+     * values: DATASPACE, PER_FRAME_METADATA, PER_FRAME_METADATA_BLOB and BLEND_MODE.
+     * We strongly encourage everyone to support setting as many of those fields as
+     * possible. If a device's Composer implementation supports a field, it should be
+     * supported here. Over time these metadata fields will be moved out of
+     * Composer/BufferQueue/etc. and into the buffer's Metadata fields.
+     * If a device's IMapper doesn't support setting those Metadata fields,
+     * eventually the device may not longer be able to support these fields.
+     *
+     * @param buffer Buffer receiving desired metadata
+     * @param metadataType MetadataType for the metadata value being set
+     * @param metadata Vector of bytes representing the value associated with
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the raw handle is invalid.
+     *     - `BAD_VALUE` when the field is constant and can never be set (such as
+     *       BUFFER_ID, NAME, WIDTH, HEIGHT, LAYER_COUNT, PIXEL_FORMAT_REQUESTED and
+     *       USAGE)
+     *     - `NO_RESOURCES` if the set cannot be fullfilled due to unavailability of
+     *        resources.
+     *     - `UNSUPPORTED` when metadataType is unknown/unsupported or setting
+     *       it is unsupported. Unsupported should also be returned if the metadata
+     *       is malformed.
+     */
+    set(pointer buffer, MetadataType metadataType, vec<uint8_t> metadata)
+            generates (Error error);
+
+    /**
+     * Given a BufferDescriptorInfo, gets the starting value of a given
+     * MetadataType. This can be used to query basic information about a buffer
+     * before the buffer is allocated.
+     *
+     * @param description Attributes of the descriptor.
+     * @param metadataType MetadataType for the metadata value being queried
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_VALUE` if any of the specified BufferDescriptorInfo attributes
+     *       are invalid.
+     *     - `NO_RESOURCES` if the get cannot be fullfilled due to unavailability of
+     *       resources.
+     *     - `UNSUPPORTED` when any of the description attributes are unsupported or
+     *       if the metadataType is unknown/unsupported. This should also be
+     *       returned if the requested metadata is not defined until a buffer has been
+     *       allocated.
+     * @return metadata Vector of bytes representing the value associated with
+     *  the MetadataType value.
+     */
+    getFromBufferDescriptorInfo(BufferDescriptorInfo description,
+                                MetadataType metadataType)
+            generates (Error error,
+                       vec<uint8_t> metadata);
+
+    struct MetadataTypeDescription {
+        MetadataType metadataType;
+        /**
+         * description should contain a string representation of the MetadataType.
+         *
+         * For example: "MyExampleMetadataType is a 64-bit timestamp in nanoseconds
+         * that indicates when a buffer is decoded. It is set by the media HAL after
+         * a buffer is decoded. It is used by the display HAL for hardware
+         * synchronization".
+         *
+         * This field is required for any non-StandardMetadataTypes.
+         */
+        string description;
+        /**
+         * isGettable represents if the MetadataType can be get.
+         */
+        bool isGettable;
+        /**
+         * isSettable represents if the MetadataType can be set.
+         */
+        bool isSettable;
+    };
+
+    /**
+     * Lists all the MetadataTypes supported by IMapper as well as a description
+     * of each supported MetadataType. For StandardMetadataTypes, the description
+     * string can be left empty.
+     *
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `NO_RESOURCES` if the get cannot be fullfilled due to unavailability of
+     *       resources.
+     * @return descriptions Vector of MetadataTypeDescriptions that represent the
+     *  MetadataTypes supported by the device.
+     */
+    listSupportedMetadataTypes()
+            generates (Error error, vec<MetadataTypeDescription> descriptions);
 };
 
diff --git a/graphics/mapper/4.0/utils/vts/Android.bp b/graphics/mapper/4.0/utils/vts/Android.bp
index e451584..56ff116 100644
--- a/graphics/mapper/4.0/utils/vts/Android.bp
+++ b/graphics/mapper/4.0/utils/vts/Android.bp
@@ -26,6 +26,9 @@
         "android.hardware.graphics.allocator@4.0",
         "android.hardware.graphics.mapper@4.0",
     ],
+    shared_libs: [
+        "libgralloctypes",
+    ],
     export_static_lib_headers: [
         "android.hardware.graphics.allocator@4.0",
         "android.hardware.graphics.mapper@4.0",
diff --git a/graphics/mapper/4.0/utils/vts/MapperVts.cpp b/graphics/mapper/4.0/utils/vts/MapperVts.cpp
index 056b7c9..531f311 100644
--- a/graphics/mapper/4.0/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/4.0/utils/vts/MapperVts.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <gralloctypes/Gralloc4.h>
 #include <mapper-vts/4.0/MapperVts.h>
 
 #include <VtsHalHidlTargetTestBase.h>
@@ -92,28 +93,39 @@
 
 std::vector<const native_handle_t*> Gralloc::allocate(const BufferDescriptor& descriptor,
                                                       uint32_t count, bool import,
-                                                      uint32_t* outStride) {
+                                                      bool allowFailure, uint32_t* outStride) {
     std::vector<const native_handle_t*> bufferHandles;
     bufferHandles.reserve(count);
-    mAllocator->allocate(descriptor, count,
-                         [&](const auto& tmpError, const auto& tmpStride, const auto& tmpBuffers) {
-                             ASSERT_EQ(Error::NONE, tmpError) << "failed to allocate buffers";
-                             ASSERT_EQ(count, tmpBuffers.size()) << "invalid buffer array";
+    mAllocator->allocate(
+            descriptor, count,
+            [&](const auto& tmpError, const auto& tmpStride, const auto& tmpBuffers) {
+                ASSERT_EQ(Error::NONE, tmpError) << "failed to allocate buffers";
+                ASSERT_EQ(count, tmpBuffers.size()) << "invalid buffer array";
 
-                             for (uint32_t i = 0; i < count; i++) {
-                                 if (import) {
-                                     ASSERT_NO_FATAL_FAILURE(
-                                             bufferHandles.push_back(importBuffer(tmpBuffers[i])));
-                                 } else {
-                                     ASSERT_NO_FATAL_FAILURE(
-                                             bufferHandles.push_back(cloneBuffer(tmpBuffers[i])));
-                                 }
-                             }
+                for (uint32_t i = 0; i < count; i++) {
+                    const native_handle_t* bufferHandle = nullptr;
+                    if (import) {
+                        if (allowFailure) {
+                            bufferHandle = importBuffer(tmpBuffers[i]);
+                        } else {
+                            ASSERT_NO_FATAL_FAILURE(bufferHandle = importBuffer(tmpBuffers[i]));
+                        }
+                    } else {
+                        if (allowFailure) {
+                            bufferHandle = cloneBuffer(tmpBuffers[i]);
+                        } else {
+                            ASSERT_NO_FATAL_FAILURE(bufferHandle = cloneBuffer(tmpBuffers[i]));
+                        }
+                    }
+                    if (bufferHandle) {
+                        bufferHandles.push_back(bufferHandle);
+                    }
+                }
 
-                             if (outStride) {
-                                 *outStride = tmpStride;
-                             }
-                         });
+                if (outStride) {
+                    *outStride = tmpStride;
+                }
+            });
 
     if (::testing::Test::HasFatalFailure()) {
         bufferHandles.clear();
@@ -123,17 +135,20 @@
 }
 
 const native_handle_t* Gralloc::allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
-                                         bool import, uint32_t* outStride) {
+                                         bool import, bool allowFailure, uint32_t* outStride) {
     BufferDescriptor descriptor = createDescriptor(descriptorInfo);
     if (::testing::Test::HasFatalFailure()) {
         return nullptr;
     }
 
-    auto buffers = allocate(descriptor, 1, import, outStride);
+    auto buffers = allocate(descriptor, 1, import, allowFailure, outStride);
     if (::testing::Test::HasFatalFailure()) {
         return nullptr;
     }
 
+    if (buffers.size() != 1) {
+        return nullptr;
+    }
     return buffers[0];
 }
 
@@ -167,6 +182,10 @@
 }
 
 void Gralloc::freeBuffer(const native_handle_t* bufferHandle) {
+    if (bufferHandle == nullptr) {
+        return;
+    }
+
     auto buffer = const_cast<native_handle_t*>(bufferHandle);
 
     if (mImportedBuffers.erase(bufferHandle)) {
@@ -296,6 +315,35 @@
     return supported;
 }
 
+Error Gralloc::get(const native_handle_t* bufferHandle, const IMapper::MetadataType& metadataType,
+                   hidl_vec<uint8_t>* outVec) {
+    Error err;
+    mMapper->get(const_cast<native_handle_t*>(bufferHandle), metadataType,
+                 [&](const auto& tmpError, const hidl_vec<uint8_t>& tmpVec) {
+                     err = tmpError;
+                     *outVec = tmpVec;
+                 });
+    return err;
+}
+
+Error Gralloc::set(const native_handle_t* bufferHandle, const IMapper::MetadataType& metadataType,
+                   const hidl_vec<uint8_t>& vec) {
+    return mMapper->set(const_cast<native_handle_t*>(bufferHandle), metadataType, vec);
+}
+
+Error Gralloc::getFromBufferDescriptorInfo(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                           const IMapper::MetadataType& metadataType,
+                                           hidl_vec<uint8_t>* outVec) {
+    Error err;
+    mMapper->getFromBufferDescriptorInfo(
+            descriptorInfo, metadataType,
+            [&](const auto& tmpError, const hidl_vec<uint8_t>& tmpVec) {
+                err = tmpError;
+                *outVec = tmpVec;
+            });
+    return err;
+}
+
 }  // namespace vts
 }  // namespace V4_0
 }  // namespace mapper
diff --git a/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h b/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h
index 03ce764..28555fa 100644
--- a/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h
+++ b/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h
@@ -51,9 +51,11 @@
     //
     // Either case, the returned buffers must be freed with freeBuffer.
     std::vector<const native_handle_t*> allocate(const BufferDescriptor& descriptor, uint32_t count,
-                                                 bool import = true, uint32_t* outStride = nullptr);
+                                                 bool import = true, bool allowFailure = false,
+                                                 uint32_t* outStride = nullptr);
     const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
-                                    bool import = true, uint32_t* outStride = nullptr);
+                                    bool import = true, bool allowFailure = false,
+                                    uint32_t* outStride = nullptr);
 
     // IMapper methods
 
@@ -81,6 +83,16 @@
 
     bool isSupported(const IMapper::BufferDescriptorInfo& descriptorInfo);
 
+    Error get(const native_handle_t* bufferHandle, const IMapper::MetadataType& metadataType,
+              hidl_vec<uint8_t>* outVec);
+
+    Error set(const native_handle_t* bufferHandle, const IMapper::MetadataType& metadataType,
+              const hidl_vec<uint8_t>& vec);
+
+    Error getFromBufferDescriptorInfo(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                      const IMapper::MetadataType& metadataType,
+                                      hidl_vec<uint8_t>* outVec);
+
   private:
     void init(const std::string& allocatorServiceName, const std::string& mapperServiceName);
 
diff --git a/graphics/mapper/4.0/vts/functional/Android.bp b/graphics/mapper/4.0/vts/functional/Android.bp
index a90ee0c..5a7548a 100644
--- a/graphics/mapper/4.0/vts/functional/Android.bp
+++ b/graphics/mapper/4.0/vts/functional/Android.bp
@@ -19,12 +19,16 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalGraphicsMapperV4_0TargetTest.cpp"],
     static_libs: [
+        "android.hardware.graphics.mapper@4.0-vts",
+    ],
+    shared_libs: [
         "android.hardware.graphics.allocator@4.0",
         "android.hardware.graphics.common@1.0",
         "android.hardware.graphics.common@1.1",
         "android.hardware.graphics.common@1.2",
         "android.hardware.graphics.mapper@4.0",
-        "android.hardware.graphics.mapper@4.0-vts",
+        "libgralloctypes",
+        "vintf-graphics-common-ndk_platform",
     ],
     test_suites: ["general-tests"],
 }
diff --git a/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp b/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
index 62ff613..2a66cbf 100644
--- a/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
+++ b/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
@@ -22,6 +22,7 @@
 
 #include <VtsHalHidlTargetTestBase.h>
 #include <android-base/logging.h>
+#include <gralloctypes/Gralloc4.h>
 #include <mapper-vts/4.0/MapperVts.h>
 
 namespace android {
@@ -34,6 +35,16 @@
 
 using android::hardware::graphics::common::V1_2::BufferUsage;
 using android::hardware::graphics::common::V1_2::PixelFormat;
+using MetadataType = android::hardware::graphics::mapper::V4_0::IMapper::MetadataType;
+using aidl::android::hardware::graphics::common::BlendMode;
+using aidl::android::hardware::graphics::common::Dataspace;
+using aidl::android::hardware::graphics::common::ExtendableType;
+using aidl::android::hardware::graphics::common::PlaneLayout;
+using aidl::android::hardware::graphics::common::PlaneLayoutComponent;
+using aidl::android::hardware::graphics::common::StandardMetadataType;
+
+using DecodeFunction = std::function<void(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                          const hidl_vec<uint8_t>& vec)>;
 
 // Test environment for graphics.mapper.
 class GraphicsMapperHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
@@ -57,6 +68,8 @@
                 mGralloc = std::make_unique<Gralloc>(
                         GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
                         GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+        ASSERT_NE(nullptr, mGralloc->getAllocator().get());
+        ASSERT_NE(nullptr, mGralloc->getMapper().get());
 
         mDummyDescriptorInfo.name = "dummy";
         mDummyDescriptorInfo.width = 64;
@@ -69,8 +82,108 @@
 
     void TearDown() override {}
 
+    void testGet(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                 const MetadataType& metadataType, DecodeFunction decode) {
+        const native_handle_t* bufferHandle = nullptr;
+        ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(descriptorInfo, true));
+
+        hidl_vec<uint8_t> vec;
+        ASSERT_EQ(Error::NONE, mGralloc->get(bufferHandle, metadataType, &vec));
+
+        ASSERT_NO_FATAL_FAILURE(decode(descriptorInfo, vec));
+    }
+
+    void testSet(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                 const MetadataType& metadataType, const hidl_vec<uint8_t>& metadata,
+                 DecodeFunction decode) {
+        const native_handle_t* bufferHandle = nullptr;
+        ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(descriptorInfo, true));
+
+        Error err = mGralloc->set(bufferHandle, metadataType, metadata);
+        if (err == Error::UNSUPPORTED) {
+            GTEST_SUCCEED() << "setting this metadata is unsupported";
+        }
+        ASSERT_EQ(err, Error::NONE);
+
+        hidl_vec<uint8_t> vec;
+        ASSERT_EQ(Error::NONE, mGralloc->get(bufferHandle, metadataType, &vec));
+
+        ASSERT_NO_FATAL_FAILURE(decode(descriptorInfo, vec));
+    }
+
+    void verifyDummyDescriptorInfoPlaneLayouts(const std::vector<PlaneLayout>& planeLayouts) {
+        ASSERT_EQ(1, planeLayouts.size());
+
+        const auto& planeLayout = planeLayouts.front();
+
+        ASSERT_EQ(4, planeLayout.components.size());
+
+        int64_t offsetInBitsR = -1;
+        int64_t offsetInBitsG = -1;
+        int64_t offsetInBitsB = -1;
+        int64_t offsetInBitsA = -1;
+
+        for (const auto& component : planeLayout.components) {
+            EXPECT_EQ(GRALLOC4_PLANE_LAYOUT_COMPONENT_TYPE, component.type.name);
+            EXPECT_EQ(8, component.sizeInBits);
+            if (component.type.value == gralloc4::PlaneLayoutComponentType_R.value) {
+                offsetInBitsR = component.offsetInBits;
+            }
+            if (component.type.value == gralloc4::PlaneLayoutComponentType_G.value) {
+                offsetInBitsG = component.offsetInBits;
+            }
+            if (component.type.value == gralloc4::PlaneLayoutComponentType_B.value) {
+                offsetInBitsB = component.offsetInBits;
+            }
+            if (component.type.value == gralloc4::PlaneLayoutComponentType_A.value) {
+                offsetInBitsA = component.offsetInBits;
+            }
+        }
+
+        EXPECT_EQ(0, offsetInBitsR);
+        EXPECT_EQ(8, offsetInBitsG);
+        EXPECT_EQ(16, offsetInBitsB);
+        EXPECT_EQ(24, offsetInBitsA);
+
+        EXPECT_EQ(0, planeLayout.offsetInBytes);
+        EXPECT_EQ(8, planeLayout.sampleIncrementInBits);
+        // Skip testing stride because any stride is valid
+        EXPECT_EQ(mDummyDescriptorInfo.width, planeLayout.widthInSamples);
+        EXPECT_EQ(mDummyDescriptorInfo.height, planeLayout.heightInSamples);
+        EXPECT_LE(planeLayout.widthInSamples * planeLayout.heightInSamples * 4,
+                  planeLayout.totalSizeInBytes);
+        EXPECT_EQ(1, planeLayout.horizontalSubsampling);
+        EXPECT_EQ(1, planeLayout.verticalSubsampling);
+
+        EXPECT_EQ(0, planeLayout.crop.left);
+        EXPECT_EQ(0, planeLayout.crop.top);
+        EXPECT_EQ(planeLayout.widthInSamples, planeLayout.crop.right);
+        EXPECT_EQ(planeLayout.heightInSamples, planeLayout.crop.bottom);
+    }
+
     std::unique_ptr<Gralloc> mGralloc;
     IMapper::BufferDescriptorInfo mDummyDescriptorInfo{};
+    static const std::set<StandardMetadataType> sRequiredMetadataTypes;
+};
+
+const std::set<StandardMetadataType> GraphicsMapperHidlTest::sRequiredMetadataTypes{
+        StandardMetadataType::BUFFER_ID,
+        StandardMetadataType::NAME,
+        StandardMetadataType::WIDTH,
+        StandardMetadataType::HEIGHT,
+        StandardMetadataType::LAYER_COUNT,
+        StandardMetadataType::PIXEL_FORMAT_REQUESTED,
+        StandardMetadataType::PIXEL_FORMAT_FOURCC,
+        StandardMetadataType::PIXEL_FORMAT_MODIFIER,
+        StandardMetadataType::USAGE,
+        StandardMetadataType::ALLOCATION_SIZE,
+        StandardMetadataType::PROTECTED_CONTENT,
+        StandardMetadataType::COMPRESSION,
+        StandardMetadataType::INTERLACED,
+        StandardMetadataType::CHROMA_SITING,
+        StandardMetadataType::PLANE_LAYOUTS,
+        StandardMetadataType::DATASPACE,
+        StandardMetadataType::BLEND_MODE,
 };
 
 /**
@@ -90,8 +203,8 @@
     for (uint32_t count = 0; count < 5; count++) {
         std::vector<const native_handle_t*> bufferHandles;
         uint32_t stride;
-        ASSERT_NO_FATAL_FAILURE(bufferHandles =
-                                        mGralloc->allocate(descriptor, count, false, &stride));
+        ASSERT_NO_FATAL_FAILURE(
+                bufferHandles = mGralloc->allocate(descriptor, count, false, false, &stride));
 
         if (count >= 1) {
             EXPECT_LE(mDummyDescriptorInfo.width, stride) << "invalid buffer stride";
@@ -293,7 +406,7 @@
 
     const native_handle_t* bufferHandle;
     uint32_t stride;
-    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true, &stride));
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true, false, &stride));
 
     // lock buffer for writing
     const IMapper::Rect region{0, 0, static_cast<int32_t>(info.width),
@@ -354,7 +467,7 @@
 
     const native_handle_t* bufferHandle;
     uint32_t stride;
-    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true, &stride));
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true, false, &stride));
 
     // lock buffer for writing
     const IMapper::Rect region{0, 0, static_cast<int32_t>(info.width),
@@ -519,6 +632,1035 @@
     ASSERT_NO_FATAL_FAILURE(supported = mGralloc->isSupported(info));
 }
 
+/**
+ * Test IMapper::get(BufferId)
+ */
+TEST_F(GraphicsMapperHidlTest, GetBufferId) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_BufferId,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t bufferId = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeBufferId(vec, &bufferId));
+            });
+}
+
+/**
+ * Test IMapper::get(Name)
+ */
+TEST_F(GraphicsMapperHidlTest, GetName) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_Name,
+            [](const IMapper::BufferDescriptorInfo& info, const hidl_vec<uint8_t>& vec) {
+                std::string name;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeName(vec, &name));
+                EXPECT_EQ(info.name, name);
+            });
+}
+
+/**
+ * Test IMapper::get(Width)
+ */
+TEST_F(GraphicsMapperHidlTest, GetWidth) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_Width,
+            [](const IMapper::BufferDescriptorInfo& info, const hidl_vec<uint8_t>& vec) {
+                uint64_t width = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeWidth(vec, &width));
+                EXPECT_EQ(info.width, width);
+            });
+}
+
+/**
+ * Test IMapper::get(Height)
+ */
+TEST_F(GraphicsMapperHidlTest, GetHeight) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_Height,
+            [](const IMapper::BufferDescriptorInfo& info, const hidl_vec<uint8_t>& vec) {
+                uint64_t height = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeHeight(vec, &height));
+                EXPECT_EQ(info.height, height);
+            });
+}
+
+/**
+ * Test IMapper::get(LayerCount)
+ */
+TEST_F(GraphicsMapperHidlTest, GetLayerCount) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_LayerCount,
+            [](const IMapper::BufferDescriptorInfo& info, const hidl_vec<uint8_t>& vec) {
+                uint64_t layerCount = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeLayerCount(vec, &layerCount));
+                EXPECT_EQ(info.layerCount, layerCount);
+            });
+}
+
+/**
+ * Test IMapper::get(PixelFormatRequested)
+ */
+TEST_F(GraphicsMapperHidlTest, GetPixelFormatRequested) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatRequested,
+            [](const IMapper::BufferDescriptorInfo& info, const hidl_vec<uint8_t>& vec) {
+                PixelFormat pixelFormatRequested = PixelFormat::BLOB;
+                ASSERT_EQ(NO_ERROR,
+                          gralloc4::decodePixelFormatRequested(vec, &pixelFormatRequested));
+                EXPECT_EQ(info.format, pixelFormatRequested);
+            });
+}
+
+/**
+ * Test IMapper::get(PixelFormatFourCC)
+ */
+TEST_F(GraphicsMapperHidlTest, GetPixelFormatFourCC) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatFourCC,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint32_t pixelFormatFourCC = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodePixelFormatFourCC(vec, &pixelFormatFourCC));
+            });
+}
+
+/**
+ * Test IMapper::get(PixelFormatModifier)
+ */
+TEST_F(GraphicsMapperHidlTest, GetPixelFormatModifier) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatModifier,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t pixelFormatModifier = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodePixelFormatModifier(vec, &pixelFormatModifier));
+            });
+}
+
+/**
+ * Test IMapper::get(Usage)
+ */
+TEST_F(GraphicsMapperHidlTest, GetUsage) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_Usage,
+            [](const IMapper::BufferDescriptorInfo& info, const hidl_vec<uint8_t>& vec) {
+                uint64_t usage = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeUsage(vec, &usage));
+                EXPECT_EQ(info.usage, usage);
+            });
+}
+
+/**
+ * Test IMapper::get(AllocationSize)
+ */
+TEST_F(GraphicsMapperHidlTest, GetAllocationSize) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_AllocationSize,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t allocationSize = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeAllocationSize(vec, &allocationSize));
+            });
+}
+
+/**
+ * Test IMapper::get(ProtectedContent)
+ */
+TEST_F(GraphicsMapperHidlTest, GetProtectedContent) {
+    auto info = mDummyDescriptorInfo;
+    info.usage = BufferUsage::PROTECTED | BufferUsage::COMPOSER_OVERLAY;
+
+    const native_handle_t* bufferHandle = nullptr;
+    bufferHandle = mGralloc->allocate(info, true, true);
+    if (bufferHandle) {
+        GTEST_SUCCEED() << "unable to allocate protected content";
+    }
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_ProtectedContent, &vec));
+
+    uint64_t protectedContent = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeProtectedContent(vec, &protectedContent));
+    EXPECT_EQ(1, protectedContent);
+}
+
+/**
+ * Test IMapper::get(Compression)
+ */
+TEST_F(GraphicsMapperHidlTest, GetCompression) {
+    auto info = mDummyDescriptorInfo;
+    info.usage = static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+
+    testGet(info, gralloc4::MetadataType_Compression,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                ExtendableType compression = gralloc4::Compression_DisplayStreamCompression;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeCompression(vec, &compression));
+
+                EXPECT_EQ(gralloc4::Compression_None.name, compression.name);
+                EXPECT_EQ(gralloc4::Compression_None.value, compression.value);
+            });
+}
+
+/**
+ * Test IMapper::get(Interlaced)
+ */
+TEST_F(GraphicsMapperHidlTest, GetInterlaced) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_Interlaced,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                ExtendableType interlaced = gralloc4::Interlaced_TopBottom;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeInterlaced(vec, &interlaced));
+
+                EXPECT_EQ(gralloc4::Interlaced_None.name, interlaced.name);
+                EXPECT_EQ(gralloc4::Interlaced_None.value, interlaced.value);
+            });
+}
+
+/**
+ * Test IMapper::get(ChromaSiting)
+ */
+TEST_F(GraphicsMapperHidlTest, GetChromaSiting) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_ChromaSiting,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                ExtendableType chromaSiting = gralloc4::ChromaSiting_Unknown;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeChromaSiting(vec, &chromaSiting));
+
+                EXPECT_EQ(gralloc4::ChromaSiting_None.name, chromaSiting.name);
+                EXPECT_EQ(gralloc4::ChromaSiting_None.value, chromaSiting.value);
+            });
+}
+
+/**
+ * Test IMapper::get(PlaneLayouts)
+ */
+TEST_F(GraphicsMapperHidlTest, GetPlaneLayouts) {
+    const native_handle_t* bufferHandle = nullptr;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->get(bufferHandle, gralloc4::MetadataType_PlaneLayouts, &vec));
+
+    std::vector<PlaneLayout> planeLayouts;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodePlaneLayouts(vec, &planeLayouts));
+
+    ASSERT_NO_FATAL_FAILURE(verifyDummyDescriptorInfoPlaneLayouts(planeLayouts));
+}
+
+/**
+ * Test IMapper::get(Dataspace)
+ */
+TEST_F(GraphicsMapperHidlTest, GetDataspace) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_Dataspace,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                Dataspace dataspace = Dataspace::DISPLAY_P3;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeDataspace(vec, &dataspace));
+                EXPECT_EQ(Dataspace::UNKNOWN, dataspace);
+            });
+}
+
+/**
+ * Test IMapper::get(BlendMode)
+ */
+TEST_F(GraphicsMapperHidlTest, GetBlendMode) {
+    testGet(mDummyDescriptorInfo, gralloc4::MetadataType_BlendMode,
+            [](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                BlendMode blendMode = BlendMode::NONE;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeBlendMode(vec, &blendMode));
+                EXPECT_EQ(BlendMode::INVALID, blendMode);
+            });
+}
+
+/**
+ * Test IMapper::get(metadata) with a bad buffer
+ */
+TEST_F(GraphicsMapperHidlTest, GetMetadataBadValue) {
+    const native_handle_t* bufferHandle = nullptr;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_BufferId, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->get(bufferHandle, gralloc4::MetadataType_Name, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->get(bufferHandle, gralloc4::MetadataType_Width, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->get(bufferHandle, gralloc4::MetadataType_Height, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_LayerCount, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_PixelFormatRequested, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_PixelFormatFourCC, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_PixelFormatModifier, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->get(bufferHandle, gralloc4::MetadataType_Usage, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_AllocationSize, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_ProtectedContent, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_Compression, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_Interlaced, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_ChromaSiting, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_PlaneLayouts, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_Dataspace, &vec));
+    ASSERT_EQ(0, vec.size());
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_BlendMode, &vec));
+    ASSERT_EQ(0, vec.size());
+}
+
+/**
+ * Test IMapper::get(metadata) for unsupported metadata
+ */
+TEST_F(GraphicsMapperHidlTest, GetUnsupportedMetadata) {
+    const native_handle_t* bufferHandle = nullptr;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
+
+    MetadataType metadataTypeFake = {"FAKE", 1};
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::UNSUPPORTED, mGralloc->get(bufferHandle, metadataTypeFake, &vec));
+    ASSERT_EQ(0, vec.size());
+}
+
+/**
+ * Test IMapper::get(metadata) for unsupported standard metadata
+ */
+TEST_F(GraphicsMapperHidlTest, GetUnsupportedStandardMetadata) {
+    const native_handle_t* bufferHandle = nullptr;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
+
+    MetadataType metadataTypeFake = {GRALLOC4_STANDARD_METADATA_TYPE, 9999};
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::UNSUPPORTED, mGralloc->get(bufferHandle, metadataTypeFake, &vec));
+    ASSERT_EQ(0, vec.size());
+}
+
+/**
+ * Test IMapper::set(PixelFormatFourCC)
+ */
+TEST_F(GraphicsMapperHidlTest, SetPixelFormatFourCC) {
+    uint32_t pixelFormatFourCC = 0x34324142;  // DRM_FORMAT_BGRA8888
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePixelFormatFourCC(pixelFormatFourCC, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatFourCC, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint32_t realPixelFormatFourCC = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodePixelFormatFourCC(vec, &realPixelFormatFourCC));
+                EXPECT_EQ(pixelFormatFourCC, realPixelFormatFourCC);
+            });
+}
+
+/**
+ * Test IMapper::set(PixelFormatModifier)
+ */
+TEST_F(GraphicsMapperHidlTest, SetPixelFormatModifier) {
+    uint64_t pixelFormatModifier = 10;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePixelFormatModifier(pixelFormatModifier, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatModifier, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t realPixelFormatModifier = 0;
+                ASSERT_EQ(NO_ERROR,
+                          gralloc4::decodePixelFormatModifier(vec, &realPixelFormatModifier));
+                EXPECT_EQ(pixelFormatModifier, realPixelFormatModifier);
+            });
+}
+
+/**
+ * Test IMapper::set(Usage) remove flag
+ */
+TEST_F(GraphicsMapperHidlTest, SetUsageRemoveBit) {
+    uint64_t usage = static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN);
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeUsage(usage, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_Usage, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t realUsage = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeUsage(vec, &realUsage));
+                EXPECT_EQ(usage, realUsage);
+            });
+}
+/**
+ * Test IMapper::set(Usage) add flag
+ */
+TEST_F(GraphicsMapperHidlTest, SetUsageAddBit) {
+    uint64_t usage = mDummyDescriptorInfo.usage | static_cast<uint64_t>(BufferUsage::GPU_TEXTURE);
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeUsage(usage, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_Usage, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t realUsage = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeUsage(vec, &realUsage));
+                EXPECT_EQ(usage, realUsage);
+            });
+}
+
+/**
+ * Test IMapper::set(Usage) to test protected content
+ */
+TEST_F(GraphicsMapperHidlTest, SetUsageProtected) {
+    const native_handle_t* bufferHandle = nullptr;
+    auto info = mDummyDescriptorInfo;
+    info.usage = BufferUsage::PROTECTED | BufferUsage::COMPOSER_OVERLAY;
+
+    bufferHandle = mGralloc->allocate(info, true, true);
+    if (bufferHandle) {
+        GTEST_SUCCEED() << "unable to allocate protected content";
+    }
+
+    uint64_t usage = static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY);
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeUsage(usage, &vec));
+
+    Error err = mGralloc->set(bufferHandle, gralloc4::MetadataType_Usage, vec);
+    ASSERT_EQ(err, Error::UNSUPPORTED);
+    vec.resize(0);
+
+    uint64_t realUsage = 0;
+    ASSERT_EQ(Error::NONE, mGralloc->get(bufferHandle, gralloc4::MetadataType_Usage, &vec));
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeUsage(vec, &realUsage));
+    EXPECT_EQ(info.usage, realUsage);
+}
+
+/**
+ * Test IMapper::set(AllocationSize)
+ */
+TEST_F(GraphicsMapperHidlTest, SetAllocationSize) {
+    uint64_t allocationSize = 1000000;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeAllocationSize(allocationSize, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_AllocationSize, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                uint64_t realAllocationSize = 0;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeAllocationSize(vec, &realAllocationSize));
+                EXPECT_EQ(allocationSize, realAllocationSize);
+            });
+}
+
+/**
+ * Test IMapper::set(ProtectedContent)
+ */
+TEST_F(GraphicsMapperHidlTest, SetProtectedContent) {
+    const native_handle_t* bufferHandle = nullptr;
+    auto info = mDummyDescriptorInfo;
+    info.usage = BufferUsage::PROTECTED | BufferUsage::COMPOSER_OVERLAY;
+
+    bufferHandle = mGralloc->allocate(info, true, true);
+    if (bufferHandle) {
+        GTEST_SUCCEED() << "unable to allocate protected content";
+    }
+
+    uint64_t protectedContent = 0;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeProtectedContent(protectedContent, &vec));
+
+    Error err = mGralloc->set(bufferHandle, gralloc4::MetadataType_ProtectedContent, vec);
+    ASSERT_EQ(err, Error::UNSUPPORTED);
+    vec.resize(0);
+
+    uint64_t realProtectedContent = 0;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->get(bufferHandle, gralloc4::MetadataType_ProtectedContent, &vec));
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeProtectedContent(vec, &realProtectedContent));
+    EXPECT_EQ(1, realProtectedContent);
+}
+
+/**
+ * Test IMapper::set(Compression)
+ */
+TEST_F(GraphicsMapperHidlTest, SetCompression) {
+    auto info = mDummyDescriptorInfo;
+    info.usage = static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+
+    ExtendableType compression = gralloc4::Compression_DisplayStreamCompression;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeCompression(compression, &vec));
+
+    testSet(info, gralloc4::MetadataType_Compression, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                ExtendableType realCompression = gralloc4::Compression_None;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeCompression(vec, &realCompression));
+
+                EXPECT_EQ(compression.name, realCompression.name);
+                EXPECT_EQ(compression.value, realCompression.value);
+            });
+}
+
+/**
+ * Test IMapper::set(Interlaced)
+ */
+TEST_F(GraphicsMapperHidlTest, SetInterlaced) {
+    ExtendableType interlaced = gralloc4::Interlaced_RightLeft;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeInterlaced(interlaced, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_Interlaced, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                ExtendableType realInterlaced = gralloc4::Interlaced_None;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeInterlaced(vec, &realInterlaced));
+
+                EXPECT_EQ(interlaced.name, realInterlaced.name);
+                EXPECT_EQ(interlaced.value, realInterlaced.value);
+            });
+}
+
+/**
+ * Test IMapper::set(ChromaSiting)
+ */
+TEST_F(GraphicsMapperHidlTest, SetChromaSiting) {
+    ExtendableType chromaSiting = gralloc4::ChromaSiting_SitedInterstitial;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeChromaSiting(chromaSiting, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_ChromaSiting, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                ExtendableType realChromaSiting = gralloc4::ChromaSiting_None;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeChromaSiting(vec, &realChromaSiting));
+
+                EXPECT_EQ(chromaSiting.name, realChromaSiting.name);
+                EXPECT_EQ(chromaSiting.value, realChromaSiting.value);
+            });
+}
+
+/**
+ * Test IMapper::set(PlaneLayouts)
+ */
+TEST_F(GraphicsMapperHidlTest, SetPlaneLayouts) {
+    const native_handle_t* bufferHandle = nullptr;
+    auto info = mDummyDescriptorInfo;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true));
+
+    std::vector<PlaneLayout> planeLayouts;
+    PlaneLayout planeLayoutA;
+    PlaneLayout planeLayoutRGB;
+    PlaneLayoutComponent component;
+
+    planeLayoutA.offsetInBytes = 0;
+    planeLayoutA.sampleIncrementInBits = 8;
+    planeLayoutA.strideInBytes = info.width + 20;
+    planeLayoutA.widthInSamples = info.width;
+    planeLayoutA.heightInSamples = info.height;
+    planeLayoutA.totalSizeInBytes = planeLayoutA.strideInBytes * info.height;
+    planeLayoutA.horizontalSubsampling = 1;
+    planeLayoutA.verticalSubsampling = 1;
+    planeLayoutA.crop.left = 0;
+    planeLayoutA.crop.top = 0;
+    planeLayoutA.crop.right = info.width;
+    planeLayoutA.crop.bottom = info.height;
+
+    component.type = gralloc4::PlaneLayoutComponentType_A;
+    component.offsetInBits = 0;
+    component.sizeInBits = 8;
+    planeLayoutA.components.push_back(component);
+
+    planeLayouts.push_back(planeLayoutA);
+
+    planeLayoutRGB.offsetInBytes = 0;
+    planeLayoutRGB.sampleIncrementInBits = 32;
+    planeLayoutRGB.strideInBytes = info.width + 20;
+    planeLayoutRGB.widthInSamples = info.width;
+    planeLayoutRGB.heightInSamples = info.height;
+    planeLayoutRGB.totalSizeInBytes = planeLayoutRGB.strideInBytes * info.height;
+    planeLayoutRGB.horizontalSubsampling = 1;
+    planeLayoutRGB.verticalSubsampling = 1;
+    planeLayoutRGB.crop.left = 0;
+    planeLayoutRGB.crop.top = 0;
+    planeLayoutRGB.crop.right = info.width;
+    planeLayoutRGB.crop.bottom = info.height;
+
+    component.type = gralloc4::PlaneLayoutComponentType_R;
+    planeLayoutRGB.components.push_back(component);
+    component.type = gralloc4::PlaneLayoutComponentType_G;
+    planeLayoutRGB.components.push_back(component);
+    component.type = gralloc4::PlaneLayoutComponentType_B;
+    planeLayoutRGB.components.push_back(component);
+
+    planeLayouts.push_back(planeLayoutRGB);
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePlaneLayouts(planeLayouts, &vec));
+
+    Error err = mGralloc->set(bufferHandle, gralloc4::MetadataType_PlaneLayouts, vec);
+    if (err == Error::UNSUPPORTED) {
+        GTEST_SUCCEED() << "setting this metadata is unsupported";
+    }
+    ASSERT_EQ(err, Error::NONE);
+
+    std::vector<PlaneLayout> realPlaneLayouts;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodePlaneLayouts(vec, &realPlaneLayouts));
+
+    ASSERT_EQ(planeLayouts.size(), realPlaneLayouts.size());
+
+    for (int i = 0; i < realPlaneLayouts.size(); i++) {
+        const auto& planeLayout = planeLayouts[i];
+        const auto& realPlaneLayout = realPlaneLayouts[i];
+
+        EXPECT_EQ(planeLayout.offsetInBytes, realPlaneLayout.offsetInBytes);
+        EXPECT_EQ(planeLayout.sampleIncrementInBits, realPlaneLayout.sampleIncrementInBits);
+        EXPECT_EQ(planeLayout.strideInBytes, realPlaneLayout.strideInBytes);
+        EXPECT_EQ(planeLayout.widthInSamples, realPlaneLayout.widthInSamples);
+        EXPECT_EQ(planeLayout.heightInSamples, realPlaneLayout.heightInSamples);
+        EXPECT_LE(planeLayout.totalSizeInBytes, realPlaneLayout.totalSizeInBytes);
+        EXPECT_EQ(planeLayout.horizontalSubsampling, realPlaneLayout.horizontalSubsampling);
+        EXPECT_EQ(planeLayout.verticalSubsampling, realPlaneLayout.verticalSubsampling);
+
+        EXPECT_EQ(planeLayout.crop.left, realPlaneLayout.crop.left);
+        EXPECT_EQ(planeLayout.crop.top, realPlaneLayout.crop.top);
+        EXPECT_EQ(planeLayout.crop.right, realPlaneLayout.crop.right);
+        EXPECT_EQ(planeLayout.crop.bottom, realPlaneLayout.crop.bottom);
+
+        ASSERT_EQ(planeLayout.components.size(), realPlaneLayout.components.size());
+
+        for (int j = 0; j < realPlaneLayout.components.size(); j++) {
+            const auto& component = planeLayout.components[j];
+            const auto& realComponent = realPlaneLayout.components[j];
+
+            EXPECT_EQ(component.type.name, realComponent.type.name);
+            EXPECT_EQ(component.type.value, realComponent.type.value);
+            EXPECT_EQ(component.sizeInBits, realComponent.sizeInBits);
+            EXPECT_EQ(component.offsetInBits, realComponent.offsetInBits);
+        }
+    }
+}
+
+/**
+ * Test IMapper::set(Dataspace)
+ */
+TEST_F(GraphicsMapperHidlTest, SetDataspace) {
+    Dataspace dataspace = Dataspace::V0_SRGB_LINEAR;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeDataspace(dataspace, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_Dataspace, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                Dataspace realDataspace = Dataspace::UNKNOWN;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeDataspace(vec, &realDataspace));
+                EXPECT_EQ(dataspace, realDataspace);
+            });
+}
+
+/**
+ * Test IMapper::set(BlendMode)
+ */
+TEST_F(GraphicsMapperHidlTest, SetBlendMode) {
+    BlendMode blendMode = BlendMode::PREMULTIPLIED;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeBlendMode(blendMode, &vec));
+
+    testSet(mDummyDescriptorInfo, gralloc4::MetadataType_BlendMode, vec,
+            [&](const IMapper::BufferDescriptorInfo& /*info*/, const hidl_vec<uint8_t>& vec) {
+                BlendMode realBlendMode = BlendMode::INVALID;
+                ASSERT_EQ(NO_ERROR, gralloc4::decodeBlendMode(vec, &realBlendMode));
+                EXPECT_EQ(blendMode, realBlendMode);
+            });
+}
+
+/**
+ * Test IMapper::set(metadata) with a bad buffer
+ */
+TEST_F(GraphicsMapperHidlTest, SetMetadataNullBuffer) {
+    const native_handle_t* bufferHandle = nullptr;
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->set(bufferHandle, gralloc4::MetadataType_BufferId, vec));
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->set(bufferHandle, gralloc4::MetadataType_Name, vec));
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->set(bufferHandle, gralloc4::MetadataType_Width, vec));
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->set(bufferHandle, gralloc4::MetadataType_Height, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_LayerCount, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatRequested, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatFourCC, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatModifier, vec));
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->set(bufferHandle, gralloc4::MetadataType_Usage, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_AllocationSize, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_ProtectedContent, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_Compression, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_Interlaced, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_ChromaSiting, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PlaneLayouts, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_Dataspace, vec));
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_BlendMode, vec));
+}
+
+/**
+ * Test IMapper::set(metadata) for constant metadata
+ */
+TEST_F(GraphicsMapperHidlTest, SetConstantMetadata) {
+    const native_handle_t* bufferHandle = nullptr;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::BAD_VALUE, mGralloc->set(bufferHandle, gralloc4::MetadataType_BufferId, vec));
+    ASSERT_EQ(Error::BAD_VALUE, mGralloc->set(bufferHandle, gralloc4::MetadataType_Name, vec));
+    ASSERT_EQ(Error::BAD_VALUE, mGralloc->set(bufferHandle, gralloc4::MetadataType_Width, vec));
+    ASSERT_EQ(Error::BAD_VALUE, mGralloc->set(bufferHandle, gralloc4::MetadataType_Height, vec));
+    ASSERT_EQ(Error::BAD_VALUE,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_LayerCount, vec));
+    ASSERT_EQ(Error::BAD_VALUE,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatRequested, vec));
+    ASSERT_EQ(Error::BAD_VALUE, mGralloc->set(bufferHandle, gralloc4::MetadataType_Usage, vec));
+}
+
+/**
+ * Test IMapper::set(metadata) for bad metadata
+ */
+TEST_F(GraphicsMapperHidlTest, SetBadMetadata) {
+    const native_handle_t* bufferHandle = nullptr;
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_BufferId, vec));
+    ASSERT_EQ(Error::UNSUPPORTED, mGralloc->set(bufferHandle, gralloc4::MetadataType_Name, vec));
+    ASSERT_EQ(Error::UNSUPPORTED, mGralloc->set(bufferHandle, gralloc4::MetadataType_Width, vec));
+    ASSERT_EQ(Error::UNSUPPORTED, mGralloc->set(bufferHandle, gralloc4::MetadataType_Height, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_LayerCount, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatRequested, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatFourCC, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PixelFormatModifier, vec));
+    ASSERT_EQ(Error::UNSUPPORTED, mGralloc->set(bufferHandle, gralloc4::MetadataType_Usage, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_AllocationSize, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_ProtectedContent, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_Compression, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_Interlaced, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_ChromaSiting, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_PlaneLayouts, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_Dataspace, vec));
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->set(bufferHandle, gralloc4::MetadataType_BlendMode, vec));
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(BufferId)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoBufferId) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->getFromBufferDescriptorInfo(mDummyDescriptorInfo,
+                                                    gralloc4::MetadataType_BufferId, &vec));
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Name)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoName) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_Name, &vec));
+
+    std::string name;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeName(vec, &name));
+    EXPECT_EQ(mDummyDescriptorInfo.name, name);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Width)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoWidth) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_Width, &vec));
+
+    uint64_t width = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeWidth(vec, &width));
+    EXPECT_EQ(mDummyDescriptorInfo.width, width);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Height)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoHeight) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_Height, &vec));
+
+    uint64_t height = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeHeight(vec, &height));
+    EXPECT_EQ(mDummyDescriptorInfo.height, height);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(PixelFormatRequested)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoPixelFormatRequested) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->getFromBufferDescriptorInfo(
+                      mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatRequested, &vec));
+
+    PixelFormat pixelFormatRequested = PixelFormat::BLOB;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodePixelFormatRequested(vec, &pixelFormatRequested));
+    EXPECT_EQ(mDummyDescriptorInfo.format, pixelFormatRequested);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(PixelFormatFourCC)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoPixelFormatFourCC) {
+    hidl_vec<uint8_t> vec;
+    Error err = mGralloc->getFromBufferDescriptorInfo(
+            mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatFourCC, &vec);
+    if (err == Error::UNSUPPORTED) {
+        GTEST_SUCCEED() << "setting this metadata is unsupported";
+    }
+    ASSERT_EQ(err, Error::NONE);
+
+    uint32_t pixelFormatFourCC = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodePixelFormatFourCC(vec, &pixelFormatFourCC));
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(PixelFormatModifier)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoPixelFormatModifier) {
+    hidl_vec<uint8_t> vec;
+    Error err = mGralloc->getFromBufferDescriptorInfo(
+            mDummyDescriptorInfo, gralloc4::MetadataType_PixelFormatModifier, &vec);
+    if (err == Error::UNSUPPORTED) {
+        GTEST_SUCCEED() << "setting this metadata is unsupported";
+    }
+    ASSERT_EQ(err, Error::NONE);
+
+    uint64_t pixelFormatModifier = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodePixelFormatModifier(vec, &pixelFormatModifier));
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Usage)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoUsage) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_Usage, &vec));
+
+    uint64_t usage = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeUsage(vec, &usage));
+    EXPECT_EQ(mDummyDescriptorInfo.usage, usage);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(AllocationSize)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoAllocationSize) {
+    hidl_vec<uint8_t> vec;
+    Error err = mGralloc->getFromBufferDescriptorInfo(mDummyDescriptorInfo,
+                                                      gralloc4::MetadataType_AllocationSize, &vec);
+    if (err == Error::UNSUPPORTED) {
+        GTEST_SUCCEED() << "setting this metadata is unsupported";
+    }
+    ASSERT_EQ(err, Error::NONE);
+
+    uint64_t allocationSize = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeAllocationSize(vec, &allocationSize));
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(ProtectedContent)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoProtectedContent) {
+    auto info = mDummyDescriptorInfo;
+    info.usage = BufferUsage::PROTECTED | BufferUsage::COMPOSER_OVERLAY;
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   info, gralloc4::MetadataType_ProtectedContent, &vec));
+
+    uint64_t protectedContent = 0;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeProtectedContent(vec, &protectedContent));
+    EXPECT_EQ(1, protectedContent);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Compression)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoCompression) {
+    auto info = mDummyDescriptorInfo;
+    info.usage = static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   info, gralloc4::MetadataType_Compression, &vec));
+
+    ExtendableType compression = gralloc4::Compression_DisplayStreamCompression;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeCompression(vec, &compression));
+
+    EXPECT_EQ(gralloc4::Compression_None.name, compression.name);
+    EXPECT_EQ(gralloc4::Compression_None.value, compression.value);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Interlaced)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoInterlaced) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_Interlaced, &vec));
+
+    ExtendableType interlaced = gralloc4::Interlaced_TopBottom;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeInterlaced(vec, &interlaced));
+
+    EXPECT_EQ(gralloc4::Interlaced_None.name, interlaced.name);
+    EXPECT_EQ(gralloc4::Interlaced_None.value, interlaced.value);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(ChromaSiting)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoChromaSiting) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->getFromBufferDescriptorInfo(mDummyDescriptorInfo,
+                                                    gralloc4::MetadataType_ChromaSiting, &vec));
+
+    ExtendableType chromaSiting = gralloc4::ChromaSiting_CositedHorizontal;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeChromaSiting(vec, &chromaSiting));
+
+    EXPECT_EQ(gralloc4::ChromaSiting_None.name, chromaSiting.name);
+    EXPECT_EQ(gralloc4::ChromaSiting_None.value, chromaSiting.value);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(PlaneLayouts)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoPlaneLayouts) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->getFromBufferDescriptorInfo(mDummyDescriptorInfo,
+                                                    gralloc4::MetadataType_PlaneLayouts, &vec));
+
+    std::vector<PlaneLayout> planeLayouts;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodePlaneLayouts(vec, &planeLayouts));
+    ASSERT_NO_FATAL_FAILURE(verifyDummyDescriptorInfoPlaneLayouts(planeLayouts));
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(Dataspace)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoDataspace) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_Dataspace, &vec));
+
+    Dataspace dataspace = Dataspace::DISPLAY_P3;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeDataspace(vec, &dataspace));
+    EXPECT_EQ(Dataspace::UNKNOWN, dataspace);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(BlendMode)
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoBlendMode) {
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::NONE, mGralloc->getFromBufferDescriptorInfo(
+                                   mDummyDescriptorInfo, gralloc4::MetadataType_BlendMode, &vec));
+
+    BlendMode blendMode = BlendMode::COVERAGE;
+    ASSERT_EQ(NO_ERROR, gralloc4::decodeBlendMode(vec, &blendMode));
+    EXPECT_EQ(BlendMode::INVALID, blendMode);
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(metadata) for unsupported metadata
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoUnsupportedMetadata) {
+    MetadataType metadataTypeFake = {"FAKE", 1};
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->getFromBufferDescriptorInfo(mDummyDescriptorInfo, metadataTypeFake, &vec));
+    ASSERT_EQ(0, vec.size());
+}
+
+/**
+ * Test IMapper::getFromBufferDescriptorInfo(metadata) for unsupported standard metadata
+ */
+TEST_F(GraphicsMapperHidlTest, GetFromBufferDescriptorInfoUnsupportedStandardMetadata) {
+    MetadataType metadataTypeFake = {GRALLOC4_STANDARD_METADATA_TYPE, 9999};
+
+    hidl_vec<uint8_t> vec;
+    ASSERT_EQ(Error::UNSUPPORTED,
+              mGralloc->getFromBufferDescriptorInfo(mDummyDescriptorInfo, metadataTypeFake, &vec));
+    ASSERT_EQ(0, vec.size());
+}
+
+/**
+ * Test IMapper::listSupportedMetadataTypes()
+ */
+TEST_F(GraphicsMapperHidlTest, ListSupportedMetadataTypes) {
+    hidl_vec<IMapper::MetadataTypeDescription> descriptions;
+    mGralloc->getMapper()->listSupportedMetadataTypes(
+            [&](const auto& tmpError, const auto& tmpDescriptions) {
+                ASSERT_EQ(Error::NONE, tmpError);
+                descriptions = tmpDescriptions;
+            });
+
+    std::set<StandardMetadataType> foundMetadataTypes;
+
+    std::set<StandardMetadataType> notSettableMetadataTypes{
+            StandardMetadataType::BUFFER_ID,   StandardMetadataType::NAME,
+            StandardMetadataType::WIDTH,       StandardMetadataType::HEIGHT,
+            StandardMetadataType::LAYER_COUNT, StandardMetadataType::PIXEL_FORMAT_REQUESTED,
+            StandardMetadataType::USAGE};
+
+    ASSERT_LE(sRequiredMetadataTypes.size(), descriptions.size());
+
+    for (const auto& description : descriptions) {
+        const auto& metadataType = description.metadataType;
+
+        if (!gralloc4::isStandardMetadataType(metadataType)) {
+            EXPECT_GT(0, description.description.size());
+            continue;
+        }
+
+        StandardMetadataType type = gralloc4::getStandardMetadataTypeValue(metadataType);
+
+        if (sRequiredMetadataTypes.find(type) == sRequiredMetadataTypes.end()) {
+            continue;
+        }
+
+        ASSERT_EQ(foundMetadataTypes.find(type), foundMetadataTypes.end());
+        foundMetadataTypes.insert(type);
+
+        ASSERT_TRUE(description.isGettable);
+
+        if (notSettableMetadataTypes.find(type) != notSettableMetadataTypes.end()) {
+            ASSERT_FALSE(description.isSettable);
+        }
+    }
+
+    ASSERT_EQ(sRequiredMetadataTypes, foundMetadataTypes);
+}
+
 }  // namespace
 }  // namespace vts
 }  // namespace V4_0
diff --git a/keymaster/4.1/Android.bp b/keymaster/4.1/Android.bp
new file mode 100644
index 0000000..eaa7e41
--- /dev/null
+++ b/keymaster/4.1/Android.bp
@@ -0,0 +1,19 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.keymaster@4.1",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IKeymasterDevice.hal",
+        "IOperation.hal",
+    ],
+    interfaces: [
+        "android.hardware.keymaster@4.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: false,
+}
diff --git a/keymaster/4.1/IKeymasterDevice.hal b/keymaster/4.1/IKeymasterDevice.hal
new file mode 100644
index 0000000..64d2c9f
--- /dev/null
+++ b/keymaster/4.1/IKeymasterDevice.hal
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.keymaster@4.1;
+
+import @4.0::ErrorCode;
+import @4.0::HardwareAuthToken;
+import @4.0::IKeymasterDevice;
+import @4.0::KeyParameter;
+import @4.0::KeyPurpose;
+import @4.0::OperationHandle;
+import IOperation;
+
+/**
+ * @4.1::IKeymasterDevice is a minor extension to @4.0::IKeymasterDevice.  It adds support for
+ *
+ * - Partial hardware enforcment of UNLOCKED_DEVICE_REQUIRED keys;
+ * - Device-unique attestaion;
+ * - Early boot only keys;
+ * - Better cleanup of operations when clients die without completing or aborting them.
+ */
+interface IKeymasterDevice extends @4.0::IKeymasterDevice {
+    /**
+     * Called by client to notify the IKeymasterDevice that the device is now locked, and keys with
+     * the UNLOCKED_DEVICE_REQUIRED tag should no longer be usable.  When this function is called,
+     * the IKeymasterDevice should note the current timestamp, and attempts to use
+     * UNLOCKED_DEVICE_REQUIRED keys must be rejected with Error::DEVICE_LOCKED until an
+     * authentication token with a later timestamp is presented.  If the `passwordOnly' argument is
+     * set to true the sufficiently-recent authentication token must indicate that the user
+     * authenticated with a password, not a biometric.
+     *
+     * @param passwordOnly specifies whether the device must be unlocked with a password, rather
+     * than a biometric, before UNLOCKED_DEVICE_REQUIRED keys can be used.
+     */
+    deviceLocked(bool passwordOnly) generates (ErrorCode error);
+
+    /**
+     * Called by client to notify the IKeymasterDevice that the device has left the early boot
+     * state, and that keys with the EARLY_BOOT_ONLY tag may no longer be used.  All attempts to use
+     * an EARLY_BOOT_ONLY key after this method is called must fail with Error::INVALID_KEY_BLOB.
+     */
+    earlyBootEnded() generates (ErrorCode error);
+
+    /**
+     * Begins a cryptographic operation.  beginOp() is a variation on begin().  beginOp() has
+     * identical functionality to begin, but instead of an OperationHandle it returns an IOperation
+     * object.  An IKeymasterDevice HAL service must call linkToDeath() on the Operation before
+     * returning it, and the provided hidl_death_recipient, if called, must abort() the operation.
+     * This is to ensure that in the event a client crashes while an operation is in progress, the
+     * operation slot is freed and available for use by other clients.
+     *
+     * @4.1::IKeymasterDevices must implement both beginOp() and begin().
+     */
+    beginOp(KeyPurpose purpose, vec<uint8_t> keyBlob, vec<KeyParameter> inParams,
+        HardwareAuthToken authToken)
+        generates (ErrorCode error, vec<KeyParameter> outParam, IOperation operation);
+};
diff --git a/keymaster/4.1/IOperation.hal b/keymaster/4.1/IOperation.hal
new file mode 100644
index 0000000..7103e9e
--- /dev/null
+++ b/keymaster/4.1/IOperation.hal
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.keymaster@4.1;
+
+import @4.0::ErrorCode;
+import @4.0::OperationHandle;
+
+/**
+ * IOperation represents an in-progress IKeymasterDevice operation.  It is returned by
+ * IKeymasterDevice.beginOp().
+ */
+interface IOperation {
+    /**
+     * Returns the operation handle to be used as an authentication challenge.
+     */
+    getOperationChallenge() generates (ErrorCode error, OperationHandle operation);
+};
diff --git a/keymaster/4.1/default/Android.bp b/keymaster/4.1/default/Android.bp
new file mode 100644
index 0000000..b06878b
--- /dev/null
+++ b/keymaster/4.1/default/Android.bp
@@ -0,0 +1,38 @@
+//
+// 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.
+//
+
+cc_binary {
+    name: "android.hardware.keymaster@4.1-service",
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    vendor: true,
+    init_rc: ["android.hardware.keymaster@4.1-service.rc"],
+    srcs: ["service.cpp"],
+
+    shared_libs: [
+        "android.hardware.keymaster@4.0",
+        "android.hardware.keymaster@4.1",
+        "libbase",
+        "libcutils",
+        "libhardware",
+        "libhidlbase",
+        "libkeymaster4",
+        "libkeymaster41",
+        "liblog",
+        "libutils",
+    ],
+
+}
diff --git a/keymaster/4.1/default/OWNERS b/keymaster/4.1/default/OWNERS
new file mode 100644
index 0000000..335660d
--- /dev/null
+++ b/keymaster/4.1/default/OWNERS
@@ -0,0 +1,2 @@
+jdanis@google.com
+swillden@google.com
diff --git a/keymaster/4.1/default/android.hardware.keymaster@4.1-service.rc b/keymaster/4.1/default/android.hardware.keymaster@4.1-service.rc
new file mode 100644
index 0000000..740b3c2
--- /dev/null
+++ b/keymaster/4.1/default/android.hardware.keymaster@4.1-service.rc
@@ -0,0 +1,6 @@
+service vendor.keymaster-4-1 /vendor/bin/hw/android.hardware.keymaster@4.1-service
+    interface android.hardware.keymaster@4.0::IKeymasterDevice default
+    interface android.hardware.keymaster@4.1::IKeymasterDevice default
+    class early_hal
+    user system
+    group system drmrpc
diff --git a/keymaster/4.1/default/service.cpp b/keymaster/4.1/default/service.cpp
new file mode 100644
index 0000000..d79a291
--- /dev/null
+++ b/keymaster/4.1/default/service.cpp
@@ -0,0 +1,35 @@
+/*
+** Copyright 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 <android-base/logging.h>
+#include <android/hardware/keymaster/4.1/IKeymasterDevice.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include <AndroidKeymaster41Device.h>
+
+using android::hardware::keymaster::V4_0::SecurityLevel;
+
+int main() {
+    ::android::hardware::configureRpcThreadpool(1, true /* willJoinThreadpool */);
+    auto keymaster = ::keymaster::V4_1::CreateKeymasterDevice(SecurityLevel::SOFTWARE);
+    auto status = keymaster->registerAsService();
+    if (status != android::OK) {
+        LOG(FATAL) << "Could not register service for Keymaster 4.1 (" << status << ")";
+    }
+
+    android::hardware::joinRpcThreadpool();
+    return -1;  // Should never get here.
+}
diff --git a/keymaster/4.1/support/Android.bp b/keymaster/4.1/support/Android.bp
new file mode 100644
index 0000000..34b6108
--- /dev/null
+++ b/keymaster/4.1/support/Android.bp
@@ -0,0 +1,32 @@
+//
+// 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.
+//
+
+cc_library {
+    name: "libkeymaster4_1support",
+    vendor_available: true,
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+    export_include_dirs: ["include"],
+    shared_libs: [
+        "android.hardware.keymaster@3.0",
+        "android.hardware.keymaster@4.0",
+        "android.hardware.keymaster@4.1",
+        "libkeymaster4support",
+    ]
+}
diff --git a/keymaster/4.1/support/include/keymasterV4_1/authorization_set.h b/keymaster/4.1/support/include/keymasterV4_1/authorization_set.h
new file mode 100644
index 0000000..afc0eaf
--- /dev/null
+++ b/keymaster/4.1/support/include/keymasterV4_1/authorization_set.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HARDWARE_INTERFACES_KEYMASTER_V4_1_SUPPORT_INCLUDE_AUTHORIZATION_SET_H_
+#define HARDWARE_INTERFACES_KEYMASTER_V4_1_SUPPORT_INCLUDE_AUTHORIZATION_SET_H_
+
+#include <keymasterV4_0/authorization_set.h>
+
+#include <keymasterV4_1/keymaster_tags.h>
+
+namespace android::hardware::keymaster::V4_1 {
+
+using V4_0::AuthorizationSet;
+using V4_0::AuthorizationSetBuilder;
+using V4_0::KeyParameter;
+
+}  // namespace android::hardware::keymaster::V4_1
+
+#endif  // HARDWARE_INTERFACES_KEYMASTER_V4_1_SUPPORT_INCLUDE_AUTHORIZATION_SET_H_
diff --git a/keymaster/4.1/support/include/keymasterV4_1/keymaster_tags.h b/keymaster/4.1/support/include/keymasterV4_1/keymaster_tags.h
new file mode 100644
index 0000000..6ffe8e1
--- /dev/null
+++ b/keymaster/4.1/support/include/keymasterV4_1/keymaster_tags.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HARDWARE_INTERFACES_KEYMASTER_V4_1_SUPPORT_INCLUDE_KEYMASTER_TAGS_H_
+#define HARDWARE_INTERFACES_KEYMASTER_V4_1_SUPPORT_INCLUDE_KEYMASTER_TAGS_H_
+
+#include <android/hardware/keymaster/4.1/types.h>
+
+#include <keymasterV4_0/keymaster_tags.h>
+
+namespace android::hardware::keymaster::V4_1 {
+
+using V4_0::BlockMode;
+using V4_0::Digest;
+using V4_0::EcCurve;
+using V4_0::ErrorCode;
+using V4_0::HardwareAuthToken;
+using V4_0::KeyParameter;
+using V4_0::PaddingMode;
+using V4_0::TagType;
+using V4_0::VerificationToken;
+
+using V4_0::TypedTag;
+
+using V4_0::TAG_ACTIVE_DATETIME;
+using V4_0::TAG_ALGORITHM;
+using V4_0::TAG_ALLOW_WHILE_ON_BODY;
+using V4_0::TAG_APPLICATION_DATA;
+using V4_0::TAG_APPLICATION_ID;
+using V4_0::TAG_ASSOCIATED_DATA;
+using V4_0::TAG_ATTESTATION_APPLICATION_ID;
+using V4_0::TAG_ATTESTATION_CHALLENGE;
+using V4_0::TAG_AUTH_TIMEOUT;
+using V4_0::TAG_BLOB_USAGE_REQUIREMENTS;
+using V4_0::TAG_BLOCK_MODE;
+using V4_0::TAG_BOOT_PATCHLEVEL;
+using V4_0::TAG_BOOTLOADER_ONLY;
+using V4_0::TAG_CALLER_NONCE;
+using V4_0::TAG_CONFIRMATION_TOKEN;
+using V4_0::TAG_CREATION_DATETIME;
+using V4_0::TAG_DIGEST;
+using V4_0::TAG_EC_CURVE;
+using V4_0::TAG_HARDWARE_TYPE;
+using V4_0::TAG_INCLUDE_UNIQUE_ID;
+using V4_0::TAG_INVALID;
+using V4_0::TAG_KEY_SIZE;
+using V4_0::TAG_MAC_LENGTH;
+using V4_0::TAG_MAX_USES_PER_BOOT;
+using V4_0::TAG_MIN_MAC_LENGTH;
+using V4_0::TAG_MIN_SECONDS_BETWEEN_OPS;
+using V4_0::TAG_NO_AUTH_REQUIRED;
+using V4_0::TAG_NONCE;
+using V4_0::TAG_ORIGIN;
+using V4_0::TAG_ORIGINATION_EXPIRE_DATETIME;
+using V4_0::TAG_OS_PATCHLEVEL;
+using V4_0::TAG_OS_VERSION;
+using V4_0::TAG_PADDING;
+using V4_0::TAG_PURPOSE;
+using V4_0::TAG_RESET_SINCE_ID_ROTATION;
+using V4_0::TAG_ROLLBACK_RESISTANCE;
+using V4_0::TAG_ROOT_OF_TRUST;
+using V4_0::TAG_RSA_PUBLIC_EXPONENT;
+using V4_0::TAG_TRUSTED_CONFIRMATION_REQUIRED;
+using V4_0::TAG_TRUSTED_USER_PRESENCE_REQUIRED;
+using V4_0::TAG_UNIQUE_ID;
+using V4_0::TAG_UNLOCKED_DEVICE_REQUIRED;
+using V4_0::TAG_USAGE_EXPIRE_DATETIME;
+using V4_0::TAG_USER_AUTH_TYPE;
+using V4_0::TAG_USER_ID;
+using V4_0::TAG_USER_SECURE_ID;
+using V4_0::TAG_VENDOR_PATCHLEVEL;
+
+#define DECLARE_KM_4_1_TYPED_TAG(name)                                                   \
+    typedef typename V4_0::Tag2TypedTag<(static_cast<V4_0::Tag>(V4_1::Tag::name))>::type \
+            TAG_##name##_t;                                                              \
+    static TAG_##name##_t TAG_##name;
+
+DECLARE_KM_4_1_TYPED_TAG(EARLY_BOOT_ONLY);
+DECLARE_KM_4_1_TYPED_TAG(DEVICE_UNIQUE_ATTESTATION);
+
+}  // namespace android::hardware::keymaster::V4_1
+
+#endif  // HARDWARE_INTERFACES_KEYMASTER_V4_1_SUPPORT_INCLUDE_KEYMASTER_TAGS_H_
diff --git a/keymaster/4.1/types.hal b/keymaster/4.1/types.hal
new file mode 100644
index 0000000..bdf1731
--- /dev/null
+++ b/keymaster/4.1/types.hal
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.keymaster@4.1;
+
+import @4.0::ErrorCode;
+import @4.0::Tag;
+import @4.0::TagType;
+
+enum Tag : @4.0::Tag {
+    /**
+     * Keys tagged with EARLY_BOOT_ONLY may only be used, or created, during early boot, until
+     * IKeymasterDevice::earlyBootEnded() is called.
+     */
+    EARLY_BOOT_ONLY = TagType:BOOL | 305,
+    /**
+     * DEVICE_UNIQUE_ATTESTATION is an argument to IKeymasterDevice::attestKey().  It indicates that
+     * attestation using a device-unique key is requested, rather than a batch key.  Only
+     * SecurityLevel::STRONGBOX IKeymasterDevices may support device-unique attestations.
+     * SecurityLevel::TRUSTED_ENVIRONMENT IKeymasterDevices must return ErrorCode::INVALID_ARGUMENT
+     * if they receive DEVICE_UNIQUE_ATTESTATION.  SecurityLevel::STRONGBOX IKeymasterDevices need
+     * not support DEVICE_UNIQUE_ATTESTATION, and return ErrorCode::CANNOT_ATTEST_IDS if they do not
+     * support it.
+     *
+     * IKeymasterDevice implementations that support device-unique attestation MUST add the
+     * DEVICE_UNIQUE_ATTESTATION tag to device-unique attestations.
+     */
+    DEVICE_UNIQUE_ATTESTATION = TagType:BOOL | 720,
+};
diff --git a/keymaster/4.1/vts/OWNERS b/keymaster/4.1/vts/OWNERS
new file mode 100644
index 0000000..335660d
--- /dev/null
+++ b/keymaster/4.1/vts/OWNERS
@@ -0,0 +1,2 @@
+jdanis@google.com
+swillden@google.com
diff --git a/vibrator/1.4/vts/functional/Android.bp b/keymaster/4.1/vts/functional/Android.bp
similarity index 66%
rename from vibrator/1.4/vts/functional/Android.bp
rename to keymaster/4.1/vts/functional/Android.bp
index 202a824..f5a0c9c 100644
--- a/vibrator/1.4/vts/functional/Android.bp
+++ b/keymaster/4.1/vts/functional/Android.bp
@@ -15,19 +15,16 @@
 //
 
 cc_test {
-    name: "VtsHalVibratorV1_4TargetTest",
+    name: "VtsHalKeymasterV4_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
-    srcs: ["VtsHalVibratorV1_4TargetTest.cpp"],
+    srcs: [
+        "EarlyBootKeyTest.cpp",
+    ],
     static_libs: [
-        "android.hardware.vibrator@1.0",
-        "android.hardware.vibrator@1.1",
-        "android.hardware.vibrator@1.2",
-        "android.hardware.vibrator@1.3",
-        "android.hardware.vibrator@1.4",
+        "android.hardware.keymaster@4.0",
+        "android.hardware.keymaster@4.1",
+        "libkeymaster4support",
+        "libkeymaster4_1support",
     ],
-    test_suites: [
-        "general-tests",
-        "vts-core",
-    ],
+    test_suites: ["vts-core"],
 }
-
diff --git a/vibrator/1.4/IVibratorCallback.hal b/keymaster/4.1/vts/functional/EarlyBootKeyTest.cpp
similarity index 80%
rename from vibrator/1.4/IVibratorCallback.hal
rename to keymaster/4.1/vts/functional/EarlyBootKeyTest.cpp
index 76281bc..4a19010 100644
--- a/vibrator/1.4/IVibratorCallback.hal
+++ b/keymaster/4.1/vts/functional/EarlyBootKeyTest.cpp
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-package android.hardware.vibrator@1.4;
+namespace android::hardware::keymaster::V4_1::test {
 
-interface IVibratorCallback {
-    oneway onComplete();
-};
+// TODO(swillden): Put tests here.
+
+}  // namespace android::hardware::keymaster::V4_1::test
diff --git a/media/c2/1.1/Android.bp b/media/c2/1.1/Android.bp
new file mode 100644
index 0000000..c3e30b2
--- /dev/null
+++ b/media/c2/1.1/Android.bp
@@ -0,0 +1,27 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.media.c2@1.1",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "IComponent.hal",
+        "IComponentStore.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.bufferqueue@1.0",
+        "android.hardware.graphics.bufferqueue@2.0",
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hardware.media.bufferpool@2.0",
+        "android.hardware.media.c2@1.0",
+        "android.hardware.media.omx@1.0",
+        "android.hardware.media@1.0",
+        "android.hidl.base@1.0",
+        "android.hidl.safe_union@1.0",
+    ],
+    gen_java: false,
+}
diff --git a/media/c2/1.1/IComponent.hal b/media/c2/1.1/IComponent.hal
new file mode 100644
index 0000000..97382dd
--- /dev/null
+++ b/media/c2/1.1/IComponent.hal
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.1;
+
+import android.hardware.media.c2@1.0::IComponent;
+import android.hardware.media.c2@1.0::Status;
+
+/**
+ * Interface for a Codec2 component corresponding to API level 1.0 or below.
+ * Components have two states: stopped and running. The running state has three
+ * sub-states: executing, tripped and error.
+ *
+ * All methods in `IComponent` must not block. If a method call cannot be
+ * completed in a timely manner, it must return `TIMED_OUT` in the return
+ * status.
+ *
+ * @note This is an extension of version 1.0 of `IComponent`. The purpose of the
+ * extension is to add support for tunneling.
+ */
+interface IComponent extends @1.0::IComponent {
+    /**
+      * Configures a component for a tunneled playback mode.
+      *
+      * A successful call to this method puts the component in the *tunneled*
+      * mode. In this mode, the output `Worklet`s returned in
+      * IComponentListener::onWorkDone() may not contain any buffers. The output
+      * buffers are passed directly to the consumer end of a buffer queue whose
+      * producer side is configured with the returned @p sidebandStream passed
+      * to IGraphicBufferProducer::setSidebandStream().
+      *
+      * The component is initially in the non-tunneled mode by default. The
+      * tunneled mode can be toggled on only before the component starts
+      * processing. Once the component is put into the tunneled mode, it shall
+      * stay in the tunneled mode until and only until reset() is called.
+      *
+      * @param avSyncHwId A resource ID for hardware sync. The generator of sync
+      *     IDs must ensure that this number is unique among all services at any
+      *     given time. For example, if both the audio HAL and the tuner HAL
+      *     support this feature, sync IDs from the audio HAL must not clash
+      *     with sync IDs from the tuner HAL.
+      * @return status Status of the call, which may be
+      *   - `OK`        - The operation completed successfully. In this case,
+      *                   @p sidebandHandle shall not be a null handle.
+      *   - `OMITTED`   - The component does not support video tunneling.
+      *   - `BAD_STATE` - The component is already running.
+      *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+      *   - `CORRUPTED` - Some unknown error occurred.
+      * @return sidebandHandle Codec-allocated sideband stream handle. This can
+      *     be passed to IGraphicBufferProducer::setSidebandStream() to
+      *     establish a direct channel to the consumer.
+      */
+     configureVideoTunnel(
+             uint32_t avSyncHwId
+         ) generates (
+             Status status,
+             handle sidebandHandle
+         );
+};
diff --git a/media/c2/1.1/IComponentStore.hal b/media/c2/1.1/IComponentStore.hal
new file mode 100644
index 0000000..38e0fc6
--- /dev/null
+++ b/media/c2/1.1/IComponentStore.hal
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.media.c2@1.1;
+
+import android.hardware.media.bufferpool@2.0::IClientManager;
+import android.hardware.media.c2@1.0::IComponentListener;
+import android.hardware.media.c2@1.0::IComponentStore;
+import android.hardware.media.c2@1.0::Status;
+
+import IComponent;
+
+/**
+ * Entry point for Codec2 HAL.
+ *
+ * All methods in `IComponentStore` must not block. If a method call cannot be
+ * completed in a timely manner, it must return `TIMED_OUT` in the return
+ * status. The only exceptions are getPoolClientManager() and getConfigurable(),
+ * which must always return immediately.
+ *
+ * @note This is an extension of version 1.0 of `IComponentStore`. The purpose
+ * of the extension is to add support for tunneling.
+ */
+interface IComponentStore extends @1.0::IComponentStore {
+    /**
+     * Creates a component by name.
+     *
+     * @param name Name of the component to create. This must match one of the
+     *     names returned by listComponents().
+     * @param listener Callback receiver.
+     * @param pool `IClientManager` object of the BufferPool in the client
+     *     process. This may be null if the client does not own a BufferPool.
+     * @return status Status of the call, which may be
+     *   - `OK`        - The component was created successfully.
+     *   - `NOT_FOUND` - There is no component with the given name.
+     *   - `NO_MEMORY` - Not enough memory to create the component.
+     *   - `TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `CORRUPTED` - Some unknown error occurred.
+     * @return comp The created component if @p status is `OK`.
+     *
+     * @sa IComponentListener.
+     */
+    createComponent_1_1(
+            string name,
+            IComponentListener listener,
+            IClientManager pool
+        ) generates (
+            Status status,
+            IComponent comp
+        );
+};
diff --git a/neuralnetworks/1.2/types.hal b/neuralnetworks/1.2/types.hal
index 837ced5..ef71ea8 100644
--- a/neuralnetworks/1.2/types.hal
+++ b/neuralnetworks/1.2/types.hal
@@ -2448,15 +2448,17 @@
      *       then clipping is disabled.
      *       If all the input tensors have type {@link OperandType::TENSOR_FLOAT32},
      *       this scalar must be of the type {@link OperandType::FLOAT32},
-     *       otherwise if all the input tensors have the type {@link OperandType::TENSOR_FLOAT16},
-     *       this scalar must be of type {@link OperandType::FLOAT16}.
+     *       otherwise if all the input tensors have the type
+     *       {@link OperandType::TENSOR_FLOAT16}, this scalar must be
+     *       of type {@link OperandType::FLOAT16}.
      * * 50: The clipping threshold for the output from the
      *       projection layer, such that values are bound within
      *       [-proj_clip, proj_clip]. If set to 0.0 then clipping is disabled.
      *       If all the input tensors have type {@link OperandType::TENSOR_FLOAT32},
      *       this scalar must be of the type {@link OperandType::FLOAT32},
-     *       otherwise if all the input tensors have the type {@link OperandType::TENSOR_FLOAT16},
-     *       this scalar must be of type {@link OperandType::FLOAT16}.
+     *       otherwise if all the input tensors have the type
+     *       {@link OperandType::TENSOR_FLOAT16}, this scalar must be
+     *       of type {@link OperandType::FLOAT16}.
      * * 51: merge_outputs
      *       An {@link OperandType::BOOL} scalar specifying if the outputs
      *       from forward and backward cells should be merged.
@@ -4124,7 +4126,6 @@
      * * 0: A tensor of the same type and shape as input1 and input2.
      *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
      *      the scale and zeroPoint can be different from inputs' scale and zeroPoint.
-     *
      */
     SELECT = 84,
 
diff --git a/neuralnetworks/1.3/types.hal b/neuralnetworks/1.3/types.hal
index 7df14b1..db86bf6 100644
--- a/neuralnetworks/1.3/types.hal
+++ b/neuralnetworks/1.3/types.hal
@@ -109,6 +109,7 @@
      * * {@link OperandType::TENSOR_FLOAT16} (since HAL version 1.2)
      * * {@link OperandType::TENSOR_FLOAT32}
      * * {@link OperandType::TENSOR_QUANT8_ASYMM}
+     * * {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} (since HAL version 1.3)
      *
      * Supported tensor rank: up to 4
      *
@@ -116,7 +117,8 @@
      * * 0: A tensor.
      * * 1: A tensor of the same {@link OperandType}, and compatible dimensions
      *      as input0.
-     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
+     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} and
+     *      {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} tensor,
      *      the scales and zeroPoint can be different from input0 scale and zeroPoint.
      * * 2: An {@link OperandType::INT32} scalar, and has to be one of the
      *      {@link FusedActivationFunc} values. Specifies the activation to
@@ -124,7 +126,8 @@
      *
      * Outputs:
      * * 0: The sum, a tensor of the same {@link OperandType} as input0.
-     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
+     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} and
+     *      {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
      *      the scale and zeroPoint can be different from inputs' scale and zeroPoint.
      */
     ADD = @1.2::OperationType:ADD,
@@ -1345,6 +1348,7 @@
      * * {@link OperandType::TENSOR_FLOAT16} (since HAL version 1.2)
      * * {@link OperandType::TENSOR_FLOAT32}
      * * {@link OperandType::TENSOR_QUANT8_ASYMM}
+     * * {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} (since HAL version 1.3)
      *
      * Supported tensor rank: up to 4
      *
@@ -1358,7 +1362,8 @@
      *
      * Outputs:
      * * 0: The product, a tensor of the same {@link OperandType} as input0.
-     *      For output tensor of {@link OperandType::TENSOR_QUANT8_ASYMM},
+     *      For output tensor of {@link OperandType::TENSOR_QUANT8_ASYMM}
+     *      and {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED},
      *      the following condition must be satisfied:
      *      output_scale > input1_scale * input2_scale.
      */
@@ -2083,6 +2088,7 @@
      * * {@link OperandType::TENSOR_FLOAT16} (since HAL version 1.2)
      * * {@link OperandType::TENSOR_FLOAT32}
      * * {@link OperandType::TENSOR_QUANT8_ASYMM} (since HAL version 1.2)
+     * * {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} (since HAL version 1.3)
      *
      * Supported tensor rank: up to 4
      *
@@ -2096,7 +2102,8 @@
      *
      * Outputs:
      * * 0: A tensor of the same {@link OperandType} as input0.
-     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
+     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} and
+     *      {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} tensor,
      *      the scale and zeroPoint can be different from inputs' scale and zeroPoint.
      */
     SUB = @1.2::OperationType:SUB,
@@ -2375,15 +2382,17 @@
      *       then clipping is disabled.
      *       If all the input tensors have type {@link OperandType::TENSOR_FLOAT32},
      *       this scalar must be of the type {@link OperandType::FLOAT32},
-     *       otherwise if all the input tensors have the type {@link OperandType::TENSOR_FLOAT16},
-     *       this scalar must be of type {@link OperandType::FLOAT16}.
+     *       otherwise if all the input tensors have the type
+     *       {@link OperandType::TENSOR_FLOAT16}, this scalar must be
+     *       of type {@link OperandType::FLOAT16}.
      * * 50: The clipping threshold for the output from the
      *       projection layer, such that values are bound within
      *       [-proj_clip, proj_clip]. If set to 0.0 then clipping is disabled.
      *       If all the input tensors have type {@link OperandType::TENSOR_FLOAT32},
      *       this scalar must be of the type {@link OperandType::FLOAT32},
-     *       otherwise if all the input tensors have the type {@link OperandType::TENSOR_FLOAT16},
-     *       this scalar must be of type {@link OperandType::FLOAT16}.
+     *       otherwise if all the input tensors have the type
+     *       {@link OperandType::TENSOR_FLOAT16}, this scalar must be
+     *       of type {@link OperandType::FLOAT16}.
      * * 51: merge_outputs
      *       An {@link OperandType::BOOL} scalar specifying if the outputs
      *       from forward and backward cells should be merged.
@@ -4034,6 +4043,7 @@
      * * {@link OperandType::TENSOR_FLOAT32}
      * * {@link OperandType::TENSOR_INT32}
      * * {@link OperandType::TENSOR_QUANT8_ASYMM}
+     * * {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} (since HAL version 1.3)
      *
      * Supported tensor rank: from 1
      *
@@ -4044,14 +4054,14 @@
      *      true) or input2 (if false).
      * * 1: An input tensor of the same shape as input0.
      * * 2: An input tensor of the same shape and type as input1.
-     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
+     *      For a {@link OperandType::TENSOR_QUANT8_ASYMM}
+     *      and {@link OperandType::TENSOR_QUANT8_ASYMM_SIGNED} tensor,
      *      the scales and zeroPoint can be different from input1 scale and zeroPoint.
      *
      * Outputs:
      * * 0: A tensor of the same type and shape as input1 and input2.
      *      For a {@link OperandType::TENSOR_QUANT8_ASYMM} tensor,
      *      the scale and zeroPoint can be different from inputs' scale and zeroPoint.
-     *
      */
     SELECT = @1.2::OperationType:SELECT,
 
diff --git a/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp b/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp
index d8a7534..60992d5 100644
--- a/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp
+++ b/neuralnetworks/1.3/vts/functional/CompilationCachingTests.cpp
@@ -456,8 +456,7 @@
     }
 
     // Execute and verify results.
-    EvaluatePreparedModel(preparedModel, testModel,
-                          /*testDynamicOutputShape=*/false);
+    EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
 }
 
 TEST_P(CompilationCachingTest, CacheSavingAndRetrievalNonZeroOffset) {
@@ -519,8 +518,7 @@
     }
 
     // Execute and verify results.
-    EvaluatePreparedModel(preparedModel, testModel,
-                          /*testDynamicOutputShape=*/false);
+    EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
 }
 
 TEST_P(CompilationCachingTest, SaveToCacheInvalidNumCache) {
@@ -541,8 +539,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -566,8 +563,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -590,8 +586,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -615,8 +610,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -727,8 +721,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -752,8 +745,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -776,8 +768,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -801,8 +792,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -914,8 +904,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -937,8 +926,7 @@
         saveModelToCache(model, modelCache, dataCache, &preparedModel);
         ASSERT_NE(preparedModel, nullptr);
         // Execute and verify results.
-        EvaluatePreparedModel(preparedModel, testModel,
-                              /*testDynamicOutputShape=*/false);
+        EvaluatePreparedModel(preparedModel, testModel, /*testKind=*/TestKind::GENERAL);
         // Check if prepareModelFromCache fails.
         preparedModel = nullptr;
         ErrorStatus status;
@@ -1082,8 +1070,7 @@
                 ASSERT_EQ(preparedModel, nullptr);
             } else {
                 ASSERT_NE(preparedModel, nullptr);
-                EvaluatePreparedModel(preparedModel, testModelAdd,
-                                      /*testDynamicOutputShape=*/false);
+                EvaluatePreparedModel(preparedModel, testModelAdd, /*testKind=*/TestKind::GENERAL);
             }
         }
     }
@@ -1144,8 +1131,7 @@
                 ASSERT_EQ(preparedModel, nullptr);
             } else {
                 ASSERT_NE(preparedModel, nullptr);
-                EvaluatePreparedModel(preparedModel, testModelAdd,
-                                      /*testDynamicOutputShape=*/false);
+                EvaluatePreparedModel(preparedModel, testModelAdd, /*testKind=*/TestKind::GENERAL);
             }
         }
     }
diff --git a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
index 2ec2988..3e947f5 100644
--- a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
+++ b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
@@ -79,6 +79,21 @@
     Executor executor;
     MeasureTiming measureTiming;
     OutputType outputType;
+    // `reportSkipping` indicates if a test should print an info message in case
+    // it is skipped. The field is set to true by default and is set to false in
+    // quantization coupling tests to suppress skipping a test
+    bool reportSkipping;
+    TestConfig(Executor executor, MeasureTiming measureTiming, OutputType outputType)
+        : executor(executor),
+          measureTiming(measureTiming),
+          outputType(outputType),
+          reportSkipping(true) {}
+    TestConfig(Executor executor, MeasureTiming measureTiming, OutputType outputType,
+               bool reportSkipping)
+        : executor(executor),
+          measureTiming(measureTiming),
+          outputType(outputType),
+          reportSkipping(reportSkipping) {}
 };
 
 }  // namespace
@@ -219,7 +234,10 @@
 }
 
 void EvaluatePreparedModel(const sp<IPreparedModel>& preparedModel, const TestModel& testModel,
-                           const TestConfig& testConfig) {
+                           const TestConfig& testConfig, bool* skipped = nullptr) {
+    if (skipped != nullptr) {
+        *skipped = false;
+    }
     // If output0 does not have size larger than one byte, we can not test with insufficient buffer.
     if (testConfig.outputType == OutputType::INSUFFICIENT &&
         !isOutputSizeGreaterThanOne(testModel, 0)) {
@@ -290,6 +308,12 @@
 
     if (testConfig.outputType != OutputType::FULLY_SPECIFIED &&
         executionStatus == ErrorStatus::GENERAL_FAILURE) {
+        if (skipped != nullptr) {
+            *skipped = true;
+        }
+        if (!testConfig.reportSkipping) {
+            return;
+        }
         LOG(INFO) << "NN VTS: Early termination of test because vendor service cannot "
                      "execute model that it does not support.";
         std::cout << "[          ]   Early termination of test because vendor service cannot "
@@ -343,44 +367,117 @@
 }
 
 void EvaluatePreparedModel(const sp<IPreparedModel>& preparedModel, const TestModel& testModel,
-                           bool testDynamicOutputShape) {
+                           TestKind testKind) {
     std::initializer_list<OutputType> outputTypesList;
     std::initializer_list<MeasureTiming> measureTimingList;
     std::initializer_list<Executor> executorList;
 
-    if (testDynamicOutputShape) {
-        outputTypesList = {OutputType::UNSPECIFIED, OutputType::INSUFFICIENT};
-        measureTimingList = {MeasureTiming::NO, MeasureTiming::YES};
-        executorList = {Executor::ASYNC, Executor::SYNC, Executor::BURST};
-    } else {
-        outputTypesList = {OutputType::FULLY_SPECIFIED};
-        measureTimingList = {MeasureTiming::NO, MeasureTiming::YES};
-        executorList = {Executor::ASYNC, Executor::SYNC, Executor::BURST};
+    switch (testKind) {
+        case TestKind::GENERAL: {
+            outputTypesList = {OutputType::FULLY_SPECIFIED};
+            measureTimingList = {MeasureTiming::NO, MeasureTiming::YES};
+            executorList = {Executor::ASYNC, Executor::SYNC, Executor::BURST};
+        } break;
+        case TestKind::DYNAMIC_SHAPE: {
+            outputTypesList = {OutputType::UNSPECIFIED, OutputType::INSUFFICIENT};
+            measureTimingList = {MeasureTiming::NO, MeasureTiming::YES};
+            executorList = {Executor::ASYNC, Executor::SYNC, Executor::BURST};
+        } break;
+        case TestKind::QUANTIZATION_COUPLING: {
+            LOG(FATAL) << "Wrong TestKind for EvaluatePreparedModel";
+            return;
+        } break;
     }
 
     for (const OutputType outputType : outputTypesList) {
         for (const MeasureTiming measureTiming : measureTimingList) {
             for (const Executor executor : executorList) {
-                const TestConfig testConfig = {.executor = executor,
-                                               .measureTiming = measureTiming,
-                                               .outputType = outputType};
+                const TestConfig testConfig(executor, measureTiming, outputType);
                 EvaluatePreparedModel(preparedModel, testModel, testConfig);
             }
         }
     }
 }
 
-void Execute(const sp<IDevice>& device, const TestModel& testModel, bool testDynamicOutputShape) {
+void EvaluatePreparedCoupledModels(const sp<IPreparedModel>& preparedModel,
+                                   const TestModel& testModel,
+                                   const sp<IPreparedModel>& preparedCoupledModel,
+                                   const TestModel& coupledModel) {
+    std::initializer_list<OutputType> outputTypesList = {OutputType::FULLY_SPECIFIED};
+    std::initializer_list<MeasureTiming> measureTimingList = {MeasureTiming::NO,
+                                                              MeasureTiming::YES};
+    std::initializer_list<Executor> executorList = {Executor::ASYNC, Executor::SYNC,
+                                                    Executor::BURST};
+
+    for (const OutputType outputType : outputTypesList) {
+        for (const MeasureTiming measureTiming : measureTimingList) {
+            for (const Executor executor : executorList) {
+                const TestConfig testConfig(executor, measureTiming, outputType,
+                                            /*reportSkipping=*/false);
+                bool baseSkipped = false;
+                EvaluatePreparedModel(preparedModel, testModel, testConfig, &baseSkipped);
+                bool coupledSkipped = false;
+                EvaluatePreparedModel(preparedCoupledModel, coupledModel, testConfig,
+                                      &coupledSkipped);
+                ASSERT_EQ(baseSkipped, coupledSkipped);
+                if (baseSkipped) {
+                    LOG(INFO) << "NN VTS: Early termination of test because vendor service cannot "
+                                 "execute model that it does not support.";
+                    std::cout << "[          ]   Early termination of test because vendor service "
+                                 "cannot "
+                                 "execute model that it does not support."
+                              << std::endl;
+                    GTEST_SKIP();
+                }
+            }
+        }
+    }
+}
+
+void Execute(const sp<IDevice>& device, const TestModel& testModel, TestKind testKind) {
     Model model = createModel(testModel);
-    if (testDynamicOutputShape) {
+    if (testKind == TestKind::DYNAMIC_SHAPE) {
         makeOutputDimensionsUnspecified(&model);
     }
 
     sp<IPreparedModel> preparedModel;
-    createPreparedModel(device, model, &preparedModel);
-    if (preparedModel == nullptr) return;
-
-    EvaluatePreparedModel(preparedModel, testModel, testDynamicOutputShape);
+    switch (testKind) {
+        case TestKind::GENERAL: {
+            createPreparedModel(device, model, &preparedModel);
+            if (preparedModel == nullptr) return;
+            EvaluatePreparedModel(preparedModel, testModel, TestKind::GENERAL);
+        } break;
+        case TestKind::DYNAMIC_SHAPE: {
+            createPreparedModel(device, model, &preparedModel);
+            if (preparedModel == nullptr) return;
+            EvaluatePreparedModel(preparedModel, testModel, TestKind::DYNAMIC_SHAPE);
+        } break;
+        case TestKind::QUANTIZATION_COUPLING: {
+            ASSERT_TRUE(testModel.hasQuant8AsymmOperands());
+            createPreparedModel(device, model, &preparedModel, /*reportSkipping*/ false);
+            TestModel signedQuantizedModel = convertQuant8AsymmOperandsToSigned(testModel);
+            sp<IPreparedModel> preparedCoupledModel;
+            createPreparedModel(device, createModel(signedQuantizedModel), &preparedCoupledModel,
+                                /*reportSkipping*/ false);
+            // If we couldn't prepare a model with unsigned quantization, we must
+            // fail to prepare a model with signed quantization as well.
+            if (preparedModel == nullptr) {
+                ASSERT_EQ(preparedCoupledModel, nullptr);
+                // If we failed to prepare both of the models, we can safely skip
+                // the test.
+                LOG(INFO) << "NN VTS: Early termination of test because vendor service cannot "
+                             "prepare model that it does not support.";
+                std::cout
+                        << "[          ]   Early termination of test because vendor service cannot "
+                           "prepare model that it does not support."
+                        << std::endl;
+                GTEST_SKIP();
+            }
+            ASSERT_NE(preparedCoupledModel, nullptr);
+            EvaluatePreparedCoupledModels(preparedModel, testModel, preparedCoupledModel,
+                                          signedQuantizedModel);
+        } break;
+    }
 }
 
 void GeneratedTestBase::SetUp() {
@@ -403,12 +500,19 @@
 // Tag for the dynamic output shape tests
 class DynamicOutputShapeTest : public GeneratedTest {};
 
+// Tag for the dynamic output shape tests
+class DISABLED_QuantizationCouplingTest : public GeneratedTest {};
+
 TEST_P(GeneratedTest, Test) {
-    Execute(kDevice, kTestModel, /*testDynamicOutputShape=*/false);
+    Execute(kDevice, kTestModel, /*testKind=*/TestKind::GENERAL);
 }
 
 TEST_P(DynamicOutputShapeTest, Test) {
-    Execute(kDevice, kTestModel, /*testDynamicOutputShape=*/true);
+    Execute(kDevice, kTestModel, /*testKind=*/TestKind::DYNAMIC_SHAPE);
+}
+
+TEST_P(DISABLED_QuantizationCouplingTest, Test) {
+    Execute(kDevice, kTestModel, /*testKind=*/TestKind::QUANTIZATION_COUPLING);
 }
 
 INSTANTIATE_GENERATED_TEST(GeneratedTest,
@@ -417,4 +521,8 @@
 INSTANTIATE_GENERATED_TEST(DynamicOutputShapeTest,
                            [](const TestModel& testModel) { return !testModel.expectFailure; });
 
+INSTANTIATE_GENERATED_TEST(DISABLED_QuantizationCouplingTest, [](const TestModel& testModel) {
+    return testModel.hasQuant8AsymmOperands() && testModel.operations.size() == 1;
+});
+
 }  // namespace android::hardware::neuralnetworks::V1_3::vts::functional
diff --git a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.h b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.h
index 45cff5b..ad6323f 100644
--- a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.h
+++ b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.h
@@ -57,8 +57,19 @@
 
 void PrepareModel(const sp<IDevice>& device, const Model& model, sp<IPreparedModel>* preparedModel);
 
+enum class TestKind {
+    // Runs a test model and compares the results to a golden data
+    GENERAL,
+    // Same as GENERAL but sets dimensions for the output tensors to zeros
+    DYNAMIC_SHAPE,
+    // Tests if quantized model with TENSOR_QUANT8_ASYMM produces the same result
+    // (OK/SKIPPED/FAILED) as the model with all such tensors converted to
+    // TENSOR_QUANT8_ASYMM_SIGNED.
+    QUANTIZATION_COUPLING
+};
+
 void EvaluatePreparedModel(const sp<IPreparedModel>& preparedModel,
-                           const test_helper::TestModel& testModel, bool testDynamicOutputShape);
+                           const test_helper::TestModel& testModel, TestKind testKind);
 
 }  // namespace android::hardware::neuralnetworks::V1_3::vts::functional
 
diff --git a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp
index 625913d..92d8fa7 100644
--- a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp
+++ b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.cpp
@@ -37,7 +37,7 @@
 
 // internal helper function
 void createPreparedModel(const sp<IDevice>& device, const Model& model,
-                         sp<IPreparedModel>* preparedModel) {
+                         sp<IPreparedModel>* preparedModel, bool reportSkipping) {
     ASSERT_NE(nullptr, preparedModel);
     *preparedModel = nullptr;
 
@@ -74,6 +74,9 @@
     // can continue.
     if (!fullySupportsModel && prepareReturnStatus != ErrorStatus::NONE) {
         ASSERT_EQ(nullptr, preparedModel->get());
+        if (!reportSkipping) {
+            return;
+        }
         LOG(INFO) << "NN VTS: Early termination of test because vendor service cannot prepare "
                      "model that it does not support.";
         std::cout << "[          ]   Early termination of test because vendor service cannot "
diff --git a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h
index 8cb42d4..4e51052 100644
--- a/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h
+++ b/neuralnetworks/1.3/vts/functional/VtsHalNeuralnetworks.h
@@ -47,7 +47,7 @@
 // Create an IPreparedModel object. If the model cannot be prepared,
 // "preparedModel" will be nullptr instead.
 void createPreparedModel(const sp<IDevice>& device, const Model& model,
-                         sp<IPreparedModel>* preparedModel);
+                         sp<IPreparedModel>* preparedModel, bool reportSkipping = true);
 
 // Utility function to get PreparedModel from callback and downcast to V1_2.
 sp<IPreparedModel> getPreparedModel_1_3(const sp<implementation::PreparedModelCallback>& callback);
diff --git a/radio/config/1.0/vts/functional/radio_config_hidl_hal_utils.h b/radio/config/1.0/vts/functional/radio_config_hidl_hal_utils.h
index 6bc1b65..2722afe 100644
--- a/radio/config/1.0/vts/functional/radio_config_hidl_hal_utils.h
+++ b/radio/config/1.0/vts/functional/radio_config_hidl_hal_utils.h
@@ -27,6 +27,7 @@
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
+#include <log/log.h>
 
 #include "vts_test_util.h"
 
diff --git a/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h b/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h
index e9951dc..4cdeb06 100644
--- a/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h
+++ b/radio/config/1.1/vts/functional/radio_config_hidl_hal_utils.h
@@ -26,6 +26,7 @@
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
+#include <log/log.h>
 
 #include "vts_test_util.h"
 
diff --git a/radio/config/1.2/vts/functional/radio_config_hidl_hal_utils.h b/radio/config/1.2/vts/functional/radio_config_hidl_hal_utils.h
index e9cbcbd..ba3f02e 100644
--- a/radio/config/1.2/vts/functional/radio_config_hidl_hal_utils.h
+++ b/radio/config/1.2/vts/functional/radio_config_hidl_hal_utils.h
@@ -28,6 +28,7 @@
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
+#include <log/log.h>
 
 #include "vts_test_util.h"
 
@@ -98,20 +99,6 @@
             const ::android::hardware::hidl_vec<SimSlotStatus>& slotStatus);
 };
 
-// Test environment for Radio HIDL HAL.
-class RadioConfigHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-  public:
-    // get the test environment singleton
-    static RadioConfigHidlEnvironment* Instance() {
-        static RadioConfigHidlEnvironment* instance = new RadioConfigHidlEnvironment;
-        return instance;
-    }
-    virtual void registerTestServices() override { registerTestService<IRadioConfig>(); }
-
-  private:
-    RadioConfigHidlEnvironment() {}
-};
-
 // The main test class for Radio config HIDL.
 class RadioConfigHidlTest : public ::testing::TestWithParam<std::string> {
   protected:
diff --git a/sensors/2.0/multihal/android.hardware.sensors@2.0-multihal.xml b/sensors/2.0/multihal/android.hardware.sensors@2.0-multihal.xml
index a771100..1acc8e6 100644
--- a/sensors/2.0/multihal/android.hardware.sensors@2.0-multihal.xml
+++ b/sensors/2.0/multihal/android.hardware.sensors@2.0-multihal.xml
@@ -5,7 +5,7 @@
         <version>2.0</version>
         <interface>
             <name>ISensors</name>
-            <instance>multihal</instance>
+            <instance>default</instance>
         </interface>
     </hal>
 </manifest>
diff --git a/tests/extension/vibrator/aidl/Android.bp b/tests/extension/vibrator/aidl/Android.bp
new file mode 100644
index 0000000..ef9b39b
--- /dev/null
+++ b/tests/extension/vibrator/aidl/Android.bp
@@ -0,0 +1,29 @@
+aidl_interface {
+    // This is an example test interface showing how to add functionality
+    // with setExtension/getExtension
+    name: "test-vintf-vibrator-ext",
+    vendor_available: true,
+    srcs: [
+        // Using android.hardware as the package because this is in
+        // hardware/interfaces. For custom interfaces, normally you
+        // would use a different package.
+        "android/hardware/tests/extension/vibrator/Directionality.aidl",
+        "android/hardware/tests/extension/vibrator/ICustomVibrator.aidl",
+        "android/hardware/tests/extension/vibrator/VendorEffect.aidl",
+    ],
+
+    // This is agreeing to keep the interface stable.
+    stability: "vintf",
+
+    // This happens to use types from a core interface, so we import it, but
+    // this won't always be needed.
+    imports: [
+        "vintf-vibrator",
+    ],
+
+    backend: {
+        java: {
+            enabled: false,
+        },
+    },
+}
diff --git a/vibrator/1.4/types.hal b/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/Directionality.aidl
similarity index 60%
copy from vibrator/1.4/types.hal
copy to tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/Directionality.aidl
index acc49b1..72bfd66 100644
--- a/vibrator/1.4/types.hal
+++ b/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/Directionality.aidl
@@ -13,10 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+package android.hardware.tests.extension.vibrator;
 
-package android.hardware.vibrator@1.4;
-
-enum Capabilities : uint32_t {
-    ON_COMPLETION_CALLBACK = 1 << 0,
-    PERFORM_COMPLETION_CALLBACK = 1 << 1,
-};
+/**
+ * Can add custom enums. If these need to be extended further, new values can
+ * simply be added.
+ */
+@Backing(type="int")
+@VintfStability
+enum Directionality {
+    NONE,
+    /** vibrations should be transverse wrt primary screen */
+    TRANSVERSE,
+    /** vibrations should be longitudinal wrt primary screen */
+    LONGITUDINAL,
+}
diff --git a/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/ICustomVibrator.aidl b/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/ICustomVibrator.aidl
new file mode 100644
index 0000000..0b21f46
--- /dev/null
+++ b/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/ICustomVibrator.aidl
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.tests.extension.vibrator;
+
+// it's fine to use types from other interfaces
+import android.hardware.vibrator.IVibratorCallback;
+import android.hardware.tests.extension.vibrator.Directionality;
+import android.hardware.tests.extension.vibrator.VendorEffect;
+
+/**
+ * This is an example of an AIDL interface extension. Notice that it does not
+ * inherit from any other extension. Instead, it will be tagged onto that
+ * extension at runtime.
+ */
+@VintfStability
+interface ICustomVibrator {
+    /**
+     * Avoid conflicting with vendor properties. Giving this as an example
+     * because the core vibrator interface uses capabilities. In reality,
+     * since this is only one capability, it's probably not needed to construct
+     * a bitfield.
+     *
+     * This is for longitudinal/transverse waves, see setDirectionality.
+     */
+    const int CAP_VENDOR_DIRECTIONALITY = 1 << 0;
+
+    /**
+     * Any new methods can be added, this returns CAP_VENDOR_*.
+     */
+    int getVendorCapabilities();
+
+    /**
+     * Arbitrary new functionality can be added.
+     */
+    void setDirectionality(Directionality directionality);
+
+    /**
+     * Perform a custom vendor effect. Note, this is a separate effect enum to
+     * avoid conflicting with core types.
+     */
+    int perform(VendorEffect effect, IVibratorCallback callback);
+}
diff --git a/vibrator/1.4/types.hal b/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/VendorEffect.aidl
similarity index 74%
rename from vibrator/1.4/types.hal
rename to tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/VendorEffect.aidl
index acc49b1..968532c 100644
--- a/vibrator/1.4/types.hal
+++ b/tests/extension/vibrator/aidl/android/hardware/tests/extension/vibrator/VendorEffect.aidl
@@ -13,10 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+package android.hardware.tests.extension.vibrator;
 
-package android.hardware.vibrator@1.4;
-
-enum Capabilities : uint32_t {
-    ON_COMPLETION_CALLBACK = 1 << 0,
-    PERFORM_COMPLETION_CALLBACK = 1 << 1,
-};
+/**
+ * Extending enum separately to avoid conflicts w/ upstream.
+ */
+@Backing(type="int")
+@VintfStability
+enum VendorEffect {
+    CRACKLE,
+    WIGGLE,
+}
diff --git a/tests/extension/vibrator/aidl/client/Android.bp b/tests/extension/vibrator/aidl/client/Android.bp
new file mode 100644
index 0000000..f7b71f7
--- /dev/null
+++ b/tests/extension/vibrator/aidl/client/Android.bp
@@ -0,0 +1,26 @@
+
+// This example client is written as a test, but it is executing from a system
+// context. All this code would look the same if it was running in system
+// server for example.
+
+cc_test {
+    name: "test-vintf-vibrator-ext-client",
+    srcs: [
+         // system code has the option to use the unstable C++ libbinder API
+         // or the NDK one. For maximum code portability, using the ndk client
+         // makes the most sense, but both are provided here as an example.
+         "test-cpp-client.cpp",
+         "test-ndk-client.cpp",
+    ],
+    shared_libs: [
+         "libbinder",
+         "libutils",
+         "vintf-vibrator-cpp",
+         "test-vintf-vibrator-ext-cpp",
+
+         "libbinder_ndk",
+         "vintf-vibrator-ndk_platform",
+         "test-vintf-vibrator-ext-ndk_platform",
+    ],
+}
+
diff --git a/tests/extension/vibrator/aidl/client/test-cpp-client.cpp b/tests/extension/vibrator/aidl/client/test-cpp-client.cpp
new file mode 100644
index 0000000..f6f5537
--- /dev/null
+++ b/tests/extension/vibrator/aidl/client/test-cpp-client.cpp
@@ -0,0 +1,52 @@
+/*
+ * 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 <android/hardware/tests/extension/vibrator/ICustomVibrator.h>
+#include <android/hardware/vibrator/IVibrator.h>
+#include <binder/IInterface.h>
+#include <binder/IServiceManager.h>
+#include <gtest/gtest.h>
+
+using android::IBinder;
+using android::IInterface;
+using android::interface_cast;
+using android::OK;
+using android::sp;
+using android::waitForVintfService;
+using android::hardware::tests::extension::vibrator::Directionality;
+using android::hardware::tests::extension::vibrator::ICustomVibrator;
+using android::hardware::vibrator::IVibrator;
+
+TEST(Cpp, CallRootMethod) {
+    sp<IVibrator> vib = waitForVintfService<IVibrator>();
+    ASSERT_NE(nullptr, vib.get());
+    ASSERT_TRUE(vib->off().isOk());
+}
+
+TEST(Cpp, CallExtMethod) {
+    // normally you would want to cache this
+    sp<IVibrator> vib = waitForVintfService<IVibrator>();
+    ASSERT_NE(nullptr, vib.get());
+
+    // getting the extension
+    sp<IBinder> ext;
+    ASSERT_EQ(OK, IInterface::asBinder(vib)->getExtension(&ext));
+    sp<ICustomVibrator> cvib = interface_cast<ICustomVibrator>(ext);
+    ASSERT_NE(nullptr, cvib.get());
+
+    // calling extension method
+    ASSERT_TRUE(cvib->setDirectionality(Directionality::TRANSVERSE).isOk());
+}
diff --git a/tests/extension/vibrator/aidl/client/test-ndk-client.cpp b/tests/extension/vibrator/aidl/client/test-ndk-client.cpp
new file mode 100644
index 0000000..c846495
--- /dev/null
+++ b/tests/extension/vibrator/aidl/client/test-ndk-client.cpp
@@ -0,0 +1,55 @@
+/*
+ * 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 <aidl/android/hardware/tests/extension/vibrator/ICustomVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
+#include <android/binder_manager.h>
+
+#include <gtest/gtest.h>
+
+using aidl::android::hardware::tests::extension::vibrator::Directionality;
+using aidl::android::hardware::tests::extension::vibrator::ICustomVibrator;
+using aidl::android::hardware::vibrator::IVibrator;
+using ndk::SpAIBinder;
+
+static const std::string kInstance = std::string() + IVibrator::descriptor + "/default";
+
+TEST(Ndk, CallRootMethod) {
+    SpAIBinder vibBinder = SpAIBinder(AServiceManager_getService(kInstance.c_str()));
+    ASSERT_NE(nullptr, vibBinder.get());
+    std::shared_ptr<IVibrator> vib = IVibrator::fromBinder(vibBinder);
+    ASSERT_NE(nullptr, vib.get());
+    ASSERT_TRUE(vib->off().isOk());
+}
+
+TEST(Ndk, CallExtMethod) {
+    // normally you would want to cache this
+    //
+    SpAIBinder vibBinder = SpAIBinder(AServiceManager_getService(kInstance.c_str()));
+    ASSERT_NE(nullptr, vibBinder.get());
+    std::shared_ptr<IVibrator> vib = IVibrator::fromBinder(vibBinder);
+    ASSERT_NE(nullptr, vib.get());
+
+    // getting the extension
+    SpAIBinder cvibBinder;
+    ASSERT_EQ(STATUS_OK, AIBinder_getExtension(vibBinder.get(), cvibBinder.getR()));
+    ASSERT_NE(nullptr, cvibBinder.get());
+    std::shared_ptr<ICustomVibrator> cvib = ICustomVibrator::fromBinder(cvibBinder);
+    ASSERT_NE(nullptr, cvib.get());
+
+    // calling extension method
+    ASSERT_TRUE(cvib->setDirectionality(Directionality::TRANSVERSE).isOk());
+}
diff --git a/tests/extension/vibrator/aidl/default/Android.bp b/tests/extension/vibrator/aidl/default/Android.bp
new file mode 100644
index 0000000..9869657
--- /dev/null
+++ b/tests/extension/vibrator/aidl/default/Android.bp
@@ -0,0 +1,25 @@
+cc_binary {
+    name: "android.hardware.tests.extension.vibrator-service.example",
+    relative_install_path: "hw",
+    // normally you implement a service directly, but we are using an implementation
+    // from a library to attach our extension to.
+    static_libs: [
+        "libvibratorexampleimpl",
+    ],
+
+    // need to add this in the manifest and to init as well to use, see
+    // android.hardware.vibrator-service.example. This binary is being tested
+    // by running it manually as root.
+
+    vendor: true,
+    srcs: [
+        "service.cpp",
+        "CustomVibrator.cpp",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "vintf-vibrator-ndk_platform",
+        "test-vintf-vibrator-ext-ndk_platform",
+    ],
+}
diff --git a/tests/extension/vibrator/aidl/default/CustomVibrator.cpp b/tests/extension/vibrator/aidl/default/CustomVibrator.cpp
new file mode 100644
index 0000000..2f3dfcb
--- /dev/null
+++ b/tests/extension/vibrator/aidl/default/CustomVibrator.cpp
@@ -0,0 +1,60 @@
+/*
+ * 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 "CustomVibrator.h"
+
+#include <android-base/logging.h>
+#include <thread>
+
+namespace aidl::android::hardware::tests::extension::vibrator {
+
+ndk::ScopedAStatus CustomVibrator::getVendorCapabilities(int32_t* _aidl_return) {
+    *_aidl_return = ICustomVibrator::CAP_VENDOR_DIRECTIONALITY;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus CustomVibrator::setDirectionality(Directionality directionality) {
+    LOG(INFO) << "Custom vibrator set directionality";
+    // do something cool in hardware
+    (void)directionality;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus CustomVibrator::perform(VendorEffect effect,
+                                           const std::shared_ptr<IVibratorCallback>& callback,
+                                           int32_t* _aidl_return) {
+    LOG(INFO) << "Custom vibrator perform";
+
+    if (effect != VendorEffect::CRACKLE && effect != VendorEffect::WIGGLE) {
+        return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
+    }
+
+    constexpr size_t kEffectMillis = 100;
+
+    if (callback != nullptr) {
+        std::thread([=] {
+            LOG(INFO) << "Starting vendor perform on another thread";
+            usleep(kEffectMillis * 1000);
+            LOG(INFO) << "Notifying vendor perform complete";
+            callback->onComplete();
+        }).detach();
+    }
+
+    *_aidl_return = kEffectMillis;
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::tests::extension::vibrator
diff --git a/tests/extension/vibrator/aidl/default/CustomVibrator.h b/tests/extension/vibrator/aidl/default/CustomVibrator.h
new file mode 100644
index 0000000..6dc5743
--- /dev/null
+++ b/tests/extension/vibrator/aidl/default/CustomVibrator.h
@@ -0,0 +1,34 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/tests/extension/vibrator/BnCustomVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibratorCallback.h>
+
+namespace aidl::android::hardware::tests::extension::vibrator {
+
+using aidl::android::hardware::vibrator::IVibratorCallback;
+
+class CustomVibrator : public BnCustomVibrator {
+    ndk::ScopedAStatus getVendorCapabilities(int32_t* _aidl_return) override;
+    ndk::ScopedAStatus setDirectionality(Directionality directionality) override;
+    ndk::ScopedAStatus perform(VendorEffect effect,
+                               const std::shared_ptr<IVibratorCallback>& callback,
+                               int32_t* _aidl_return) override;
+};
+
+}  // namespace aidl::android::hardware::tests::extension::vibrator
diff --git a/tests/extension/vibrator/aidl/default/service.cpp b/tests/extension/vibrator/aidl/default/service.cpp
new file mode 100644
index 0000000..16290df
--- /dev/null
+++ b/tests/extension/vibrator/aidl/default/service.cpp
@@ -0,0 +1,47 @@
+/*
+ * 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 <vibrator-impl/Vibrator.h>
+#include "CustomVibrator.h"
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+using aidl::android::hardware::tests::extension::vibrator::CustomVibrator;
+using aidl::android::hardware::vibrator::Vibrator;
+
+int main() {
+    // these are threads in addition to the one we are joining below, so this
+    // service will have a single thread
+    ABinderProcess_setThreadPoolMaxThreadCount(0);
+
+    // making the core service
+    std::shared_ptr<Vibrator> vib = ndk::SharedRefBase::make<Vibrator>();
+    ndk::SpAIBinder vibBinder = vib->asBinder();
+
+    // making the extension service
+    std::shared_ptr<CustomVibrator> cvib = ndk::SharedRefBase::make<CustomVibrator>();
+
+    // need to attach the extension to the same binder we will be registering
+    CHECK(STATUS_OK == AIBinder_setExtension(vibBinder.get(), cvib->asBinder().get()));
+
+    const std::string instance = std::string() + Vibrator::descriptor + "/default";
+    CHECK(STATUS_OK == AServiceManager_addService(vibBinder.get(), instance.c_str()));
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reach
+}
diff --git a/tests/memory/2.0/Android.bp b/tests/memory/2.0/Android.bp
new file mode 100644
index 0000000..5166652
--- /dev/null
+++ b/tests/memory/2.0/Android.bp
@@ -0,0 +1,12 @@
+hidl_interface {
+    name: "android.hardware.tests.memory@2.0",
+    root: "android.hardware",
+    srcs: [
+        "IMemoryInterface.hal",
+        "types.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
diff --git a/tests/memory/2.0/IMemoryInterface.hal b/tests/memory/2.0/IMemoryInterface.hal
new file mode 100644
index 0000000..2c824bf
--- /dev/null
+++ b/tests/memory/2.0/IMemoryInterface.hal
@@ -0,0 +1,12 @@
+package android.hardware.tests.memory@2.0;
+
+interface IMemoryInterface {
+    // Flips all the bits in the given memory buffer.
+    bitwiseNot(memory mem);
+    // Returns a read-only buffer of size 8, containing the bytes 0..7.
+    getTestMem() generates(memory mem);
+    // Given two memory regions of the same size, returns two memory fields of
+    // equal size, the first contains the byte-wise sum and the other the byte-
+    // wise difference.
+    getSumDiff(TwoMemory in) generates(TwoMemory out);
+};
diff --git a/tests/memory/2.0/types.hal b/tests/memory/2.0/types.hal
new file mode 100644
index 0000000..9ec357b
--- /dev/null
+++ b/tests/memory/2.0/types.hal
@@ -0,0 +1,6 @@
+package android.hardware.tests.memory@2.0;
+
+struct TwoMemory {
+    memory mem1;
+    memory mem2;
+};
diff --git a/vibrator/1.4/Android.bp b/vibrator/1.4/Android.bp
deleted file mode 100644
index acfc795..0000000
--- a/vibrator/1.4/Android.bp
+++ /dev/null
@@ -1,19 +0,0 @@
-// This file is autogenerated by hidl-gen -Landroidbp.
-
-hidl_interface {
-    name: "android.hardware.vibrator@1.4",
-    root: "android.hardware",
-    srcs: [
-        "types.hal",
-        "IVibrator.hal",
-        "IVibratorCallback.hal",
-    ],
-    interfaces: [
-        "android.hardware.vibrator@1.0",
-        "android.hardware.vibrator@1.1",
-        "android.hardware.vibrator@1.2",
-        "android.hardware.vibrator@1.3",
-        "android.hidl.base@1.0",
-    ],
-    gen_java: true,
-}
diff --git a/vibrator/1.4/IVibrator.hal b/vibrator/1.4/IVibrator.hal
deleted file mode 100644
index 913abe3..0000000
--- a/vibrator/1.4/IVibrator.hal
+++ /dev/null
@@ -1,57 +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.
- */
-
-package android.hardware.vibrator@1.4;
-
-import @1.0::EffectStrength;
-import @1.3::Effect;
-import @1.0::Status;
-import @1.3::IVibrator;
-import IVibratorCallback;
-
-interface IVibrator extends @1.3::IVibrator {
-    /**
-     * Determine capabilities of the vibrator HAL.
-     */
-    getCapabilities() generates (bitfield<Capabilities> capabilities);
-
-    /**
-     * Turn on vibrator
-     *
-     * This function must only be called after the previous timeout has expired or
-     * was canceled (through off()).
-     * @param timeoutMs number of milliseconds to vibrate.
-     * @param callback A callback used to inform Frameworks of state change, if supported.
-     * @return vibratorOnRet whether vibrator command was successful or not.
-     */
-    on_1_4(uint32_t timeoutMs, IVibratorCallback callback) generates (Status vibratorOnRet);
-
-    /**
-     * Fire off a predefined haptic event.
-     *
-     * @param effect The type of haptic event to trigger.
-     * @param strength The intensity of haptic event to trigger.
-     * @param callback A callback used to inform Frameworks of state change, if supported.
-     * @return status Whether the effect was successfully performed or not. Must
-     *     return Status::UNSUPPORTED_OPERATION if the effect is not supported.
-     * @return lengthMs The length of time the event is expected to take in
-     *     milliseconds. This doesn't need to be perfectly accurate, but should be a reasonable
-     *     approximation. Should be a positive, non-zero value if the returned status is Status::OK,
-     *     and set to 0 otherwise.
-     */
-    perform_1_4(Effect effect, EffectStrength strength, IVibratorCallback callback)
-        generates (Status status, uint32_t lengthMs);
-};
diff --git a/vibrator/1.4/vts/functional/VtsHalVibratorV1_4TargetTest.cpp b/vibrator/1.4/vts/functional/VtsHalVibratorV1_4TargetTest.cpp
deleted file mode 100644
index 1b6abe9..0000000
--- a/vibrator/1.4/vts/functional/VtsHalVibratorV1_4TargetTest.cpp
+++ /dev/null
@@ -1,203 +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.
- */
-
-#define LOG_TAG "vibrator_hidl_hal_test"
-
-#include <android-base/logging.h>
-#include <android/hardware/vibrator/1.0/types.h>
-#include <android/hardware/vibrator/1.4/IVibrator.h>
-#include <gtest/gtest.h>
-#include <hidl/GtestPrinter.h>
-#include <hidl/ServiceManagement.h>
-
-#include <getopt.h>
-#include <unistd.h>
-
-#include <future>
-
-using ::android::sp;
-using ::android::hardware::hidl_bitfield;
-using ::android::hardware::hidl_enum_range;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::hardware::vibrator::V1_0::EffectStrength;
-using ::android::hardware::vibrator::V1_0::Status;
-using ::android::hardware::vibrator::V1_3::Effect;
-using ::android::hardware::vibrator::V1_4::Capabilities;
-using ::android::hardware::vibrator::V1_4::IVibrator;
-using ::android::hardware::vibrator::V1_4::IVibratorCallback;
-
-static uint32_t sCompletionLimitMs = UINT32_MAX;
-
-#define EXPECT_OK(ret) ASSERT_TRUE((ret).isOk())
-
-class CompletionCallback : public IVibratorCallback {
-  public:
-    CompletionCallback(std::function<void()> callback) : mCallback(callback) {}
-    Return<void> onComplete() override {
-        mCallback();
-        return Void();
-    }
-
-  private:
-    std::function<void()> mCallback;
-};
-
-class VibratorHidlTest_1_4 : public testing::TestWithParam<std::string> {
-  public:
-    virtual void SetUp() override {
-        vibrator = IVibrator::getService(GetParam());
-        ASSERT_NE(vibrator, nullptr);
-        capabilities = vibrator->getCapabilities();
-    }
-
-    virtual void TearDown() override {}
-
-    sp<IVibrator> vibrator;
-    hidl_bitfield<Capabilities> capabilities;
-};
-
-TEST_P(VibratorHidlTest_1_4, OnWithCallback) {
-    if (capabilities & Capabilities::ON_COMPLETION_CALLBACK) {
-        std::promise<void> completionPromise;
-        std::future<void> completionFuture{completionPromise.get_future()};
-        sp<CompletionCallback> callback =
-                new CompletionCallback([&completionPromise] { completionPromise.set_value(); });
-        uint32_t duration = 250;
-        std::chrono::milliseconds timeout{duration * 2};
-        EXPECT_EQ(Status::OK, vibrator->on_1_4(duration, callback));
-        EXPECT_EQ(completionFuture.wait_for(timeout), std::future_status::ready);
-        vibrator->off();
-    }
-}
-
-static void validatePerformEffectUnsupportedOperation(Status status, uint32_t lengthMs) {
-    ASSERT_EQ(Status::UNSUPPORTED_OPERATION, status);
-    ASSERT_EQ(static_cast<uint32_t>(0), lengthMs)
-            << "Effects that return UNSUPPORTED_OPERATION must have a duration of zero";
-}
-
-static void validatePerformEffect(Status status, uint32_t lengthMs) {
-    ASSERT_TRUE(status == Status::OK || status == Status::UNSUPPORTED_OPERATION);
-    if (status == Status::OK) {
-        ASSERT_LT(static_cast<uint32_t>(0), lengthMs)
-                << "Effects that return OK must return a positive duration";
-    } else {
-        validatePerformEffectUnsupportedOperation(status, lengthMs);
-    }
-}
-
-/*
- * Test to make sure effects within the valid range return are either supported and return OK with
- * a valid duration, or are unsupported and return UNSUPPORTED_OPERATION with a duration of 0.
- */
-TEST_P(VibratorHidlTest_1_4, PerformEffect_1_4) {
-    Status performStatus;
-    uint32_t performLength;
-    auto validateWrapper = [&](Status status, uint32_t lengthMs) {
-        performStatus = status;
-        performLength = lengthMs;
-        validatePerformEffect(status, lengthMs);
-    };
-    for (const auto& effect : hidl_enum_range<Effect>()) {
-        for (const auto& strength : hidl_enum_range<EffectStrength>()) {
-            std::promise<void> completionPromise;
-            std::future<void> completionFuture{completionPromise.get_future()};
-            sp<CompletionCallback> callback =
-                    new CompletionCallback([&completionPromise] { completionPromise.set_value(); });
-            EXPECT_OK(vibrator->perform_1_4(effect, strength, callback, validateWrapper));
-            if (performStatus == Status::OK && performLength < sCompletionLimitMs &&
-                (capabilities & Capabilities::PERFORM_COMPLETION_CALLBACK)) {
-                std::chrono::milliseconds timeout{performLength * 2};
-                EXPECT_EQ(completionFuture.wait_for(timeout), std::future_status::ready);
-            }
-        }
-    }
-}
-
-/*
- * Test to make sure effect values above the valid range are rejected.
- */
-TEST_P(VibratorHidlTest_1_4, PerformEffect_1_4_BadEffects_AboveValidRange) {
-    Effect effect = *std::prev(hidl_enum_range<Effect>().end());
-    Effect badEffect = static_cast<Effect>(static_cast<int32_t>(effect) + 1);
-    EXPECT_OK(vibrator->perform_1_4(badEffect, EffectStrength::LIGHT, nullptr,
-                                    validatePerformEffectUnsupportedOperation));
-}
-
-/*
- * Test to make sure effect values below the valid range are rejected.
- */
-TEST_P(VibratorHidlTest_1_4, PerformEffect_1_4_BadEffects_BelowValidRange) {
-    Effect effect = *hidl_enum_range<Effect>().begin();
-    Effect badEffect = static_cast<Effect>(static_cast<int32_t>(effect) - 1);
-    EXPECT_OK(vibrator->perform_1_4(badEffect, EffectStrength::LIGHT, nullptr,
-                                    validatePerformEffectUnsupportedOperation));
-}
-
-/*
- * Test to make sure strength values above the valid range are rejected.
- */
-TEST_P(VibratorHidlTest_1_4, PerformEffect_1_4_BadStrength_AboveValidRange) {
-    EffectStrength strength = *std::prev(hidl_enum_range<EffectStrength>().end());
-    EffectStrength badStrength = static_cast<EffectStrength>(static_cast<int32_t>(strength) + 1);
-    EXPECT_OK(vibrator->perform_1_4(Effect::THUD, badStrength, nullptr,
-                                    validatePerformEffectUnsupportedOperation));
-}
-
-/*
- * Test to make sure strength values below the valid range are rejected.
- */
-TEST_P(VibratorHidlTest_1_4, PerformEffect_1_4_BadStrength_BelowValidRange) {
-    EffectStrength strength = *hidl_enum_range<EffectStrength>().begin();
-    EffectStrength badStrength = static_cast<EffectStrength>(static_cast<int32_t>(strength) - 1);
-    EXPECT_OK(vibrator->perform_1_4(Effect::THUD, badStrength, nullptr,
-                                    validatePerformEffectUnsupportedOperation));
-}
-
-INSTANTIATE_TEST_SUITE_P(
-        PerInstance, VibratorHidlTest_1_4,
-        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IVibrator::descriptor)),
-        android::hardware::PrintInstanceNameToString);
-
-enum {
-    OPTION_COMPLETION_LIMIT_MS,
-};
-
-int main(int argc, char** argv) {
-    struct option options[] = {
-            {"completion-limit-ms", required_argument, 0, OPTION_COMPLETION_LIMIT_MS}, {}};
-
-    printf("Running main() from %s\n", __FILE__);
-    testing::InitGoogleTest(&argc, argv);
-
-    while (true) {
-        int opt = getopt_long(argc, argv, "", options, nullptr);
-        if (opt == -1) {
-            break;
-        }
-        switch (opt) {
-            case OPTION_COMPLETION_LIMIT_MS:
-                std::istringstream(optarg) >> sCompletionLimitMs;
-                break;
-            default:
-                printf("Unrecognized option\n");
-                return -EINVAL;
-        }
-    }
-
-    return RUN_ALL_TESTS();
-}
diff --git a/vibrator/aidl/Android.bp b/vibrator/aidl/Android.bp
index 18468ef..cd5439f 100644
--- a/vibrator/aidl/Android.bp
+++ b/vibrator/aidl/Android.bp
@@ -5,10 +5,5 @@
         "android/hardware/vibrator/*.aidl",
     ],
     stability: "vintf",
-    backend: {
-        java: {
-            enabled: false,
-        },
-    },
 }
 
diff --git a/vibrator/aidl/default/Android.bp b/vibrator/aidl/default/Android.bp
index f399887..dc8867f 100644
--- a/vibrator/aidl/default/Android.bp
+++ b/vibrator/aidl/default/Android.bp
@@ -1,3 +1,19 @@
+cc_library_static {
+    name: "libvibratorexampleimpl",
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "vintf-vibrator-ndk_platform",
+    ],
+    export_include_dirs: ["include"],
+    srcs: ["Vibrator.cpp"],
+    visibility: [
+         ":__subpackages__",
+         "//hardware/interfaces/tests/extension/vibrator:__subpackages__",
+    ],
+}
+
 cc_binary {
     name: "android.hardware.vibrator-service.example",
     relative_install_path: "hw",
@@ -9,5 +25,8 @@
         "libbinder_ndk",
         "vintf-vibrator-ndk_platform",
     ],
-    srcs: ["main.cpp", "Vibrator.cpp"],
+    static_libs: [
+        "libvibratorexampleimpl",
+    ],
+    srcs: ["main.cpp"],
 }
diff --git a/vibrator/aidl/default/Vibrator.cpp b/vibrator/aidl/default/Vibrator.cpp
index 18be1a6..09cd234 100644
--- a/vibrator/aidl/default/Vibrator.cpp
+++ b/vibrator/aidl/default/Vibrator.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "Vibrator.h"
+#include "vibrator-impl/Vibrator.h"
 
 #include <android-base/logging.h>
 #include <thread>
diff --git a/vibrator/aidl/default/Vibrator.h b/vibrator/aidl/default/include/vibrator-impl/Vibrator.h
similarity index 100%
rename from vibrator/aidl/default/Vibrator.h
rename to vibrator/aidl/default/include/vibrator-impl/Vibrator.h
diff --git a/vibrator/aidl/default/main.cpp b/vibrator/aidl/default/main.cpp
index d1619ff..ebb0905 100644
--- a/vibrator/aidl/default/main.cpp
+++ b/vibrator/aidl/default/main.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "Vibrator.h"
+#include "vibrator-impl/Vibrator.h"
 
 #include <android-base/logging.h>
 #include <android/binder_manager.h>