diff --git a/audio/6.0/IDevice.hal b/audio/6.0/IDevice.hal
index 2347696..c2e310c 100644
--- a/audio/6.0/IDevice.hal
+++ b/audio/6.0/IDevice.hal
@@ -168,6 +168,25 @@
             generates (Result retval, AudioPatchHandle patch);
 
     /**
+     * Updates an audio patch.
+     *
+     * Use of this function is preferred to releasing and re-creating a patch
+     * as the HAL module can figure out a way of switching the route without
+     * causing audio disruption.
+     *
+     * @param previousPatch handle of the previous patch to update.
+     * @param sources new patch sources.
+     * @param sinks new patch sinks.
+     * @return retval operation completion status.
+     * @return patch updated patch handle.
+     */
+    updateAudioPatch(
+            AudioPatchHandle previousPatch,
+            vec<AudioPortConfig> sources,
+            vec<AudioPortConfig> sinks) generates (
+                    Result retval, AudioPatchHandle patch);
+
+    /**
      * Release an audio patch.
      *
      * @param patch patch handle.
diff --git a/audio/core/all-versions/default/Device.cpp b/audio/core/all-versions/default/Device.cpp
index ad841ca..47e31c1 100644
--- a/audio/core/all-versions/default/Device.cpp
+++ b/audio/core/all-versions/default/Device.cpp
@@ -269,12 +269,21 @@
 Return<void> Device::createAudioPatch(const hidl_vec<AudioPortConfig>& sources,
                                       const hidl_vec<AudioPortConfig>& sinks,
                                       createAudioPatch_cb _hidl_cb) {
+    auto [retval, patch] = createOrUpdateAudioPatch(
+            static_cast<AudioPatchHandle>(AudioHandleConsts::AUDIO_PATCH_HANDLE_NONE), sources,
+            sinks);
+    _hidl_cb(retval, patch);
+    return Void();
+}
+
+std::tuple<Result, AudioPatchHandle> Device::createOrUpdateAudioPatch(
+        AudioPatchHandle patch, const hidl_vec<AudioPortConfig>& sources,
+        const hidl_vec<AudioPortConfig>& sinks) {
     Result retval(Result::NOT_SUPPORTED);
-    AudioPatchHandle patch = 0;
     if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
         std::unique_ptr<audio_port_config[]> halSources(HidlUtils::audioPortConfigsToHal(sources));
         std::unique_ptr<audio_port_config[]> halSinks(HidlUtils::audioPortConfigsToHal(sinks));
-        audio_patch_handle_t halPatch = AUDIO_PATCH_HANDLE_NONE;
+        audio_patch_handle_t halPatch = static_cast<audio_patch_handle_t>(patch);
         retval = analyzeStatus("create_audio_patch",
                                mDevice->create_audio_patch(mDevice, sources.size(), &halSources[0],
                                                            sinks.size(), &halSinks[0], &halPatch));
@@ -282,8 +291,7 @@
             patch = static_cast<AudioPatchHandle>(halPatch);
         }
     }
-    _hidl_cb(retval, patch);
-    return Void();
+    return {retval, patch};
 }
 
 Return<Result> Device::releaseAudioPatch(int32_t patch) {
@@ -438,6 +446,19 @@
     }
 }
 
+Return<void> Device::updateAudioPatch(int32_t previousPatch,
+                                      const hidl_vec<AudioPortConfig>& sources,
+                                      const hidl_vec<AudioPortConfig>& sinks,
+                                      createAudioPatch_cb _hidl_cb) {
+    if (previousPatch != static_cast<int32_t>(AudioHandleConsts::AUDIO_PATCH_HANDLE_NONE)) {
+        auto [retval, patch] = createOrUpdateAudioPatch(previousPatch, sources, sinks);
+        _hidl_cb(retval, patch);
+    } else {
+        _hidl_cb(Result::INVALID_ARGUMENTS, previousPatch);
+    }
+    return Void();
+}
+
 #endif
 
 }  // namespace implementation
diff --git a/audio/core/all-versions/default/PrimaryDevice.cpp b/audio/core/all-versions/default/PrimaryDevice.cpp
index 0f1aba0..679f85d 100644
--- a/audio/core/all-versions/default/PrimaryDevice.cpp
+++ b/audio/core/all-versions/default/PrimaryDevice.cpp
@@ -176,6 +176,13 @@
 Return<Result> PrimaryDevice::removeDeviceEffect(AudioPortHandle device, uint64_t effectId) {
     return mDevice->removeDeviceEffect(device, effectId);
 }
+
+Return<void> PrimaryDevice::updateAudioPatch(int32_t previousPatch,
+                                             const hidl_vec<AudioPortConfig>& sources,
+                                             const hidl_vec<AudioPortConfig>& sinks,
+                                             updateAudioPatch_cb _hidl_cb) {
+    return mDevice->updateAudioPatch(previousPatch, sources, sinks, _hidl_cb);
+}
 #endif
 
 // Methods from ::android::hardware::audio::CPP_VERSION::IPrimaryDevice follow.
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 80a9638..b0e72d9 100644
--- a/audio/core/all-versions/default/include/core/default/Device.h
+++ b/audio/core/all-versions/default/include/core/default/Device.h
@@ -118,6 +118,9 @@
     Return<Result> close() override;
     Return<Result> addDeviceEffect(AudioPortHandle device, uint64_t effectId) override;
     Return<Result> removeDeviceEffect(AudioPortHandle device, uint64_t effectId) override;
+    Return<void> updateAudioPatch(int32_t previousPatch, const hidl_vec<AudioPortConfig>& sources,
+                                  const hidl_vec<AudioPortConfig>& sinks,
+                                  createAudioPatch_cb _hidl_cb) override;
 #endif
     Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
 
@@ -136,6 +139,9 @@
     virtual ~Device();
 
     Result doClose();
+    std::tuple<Result, AudioPatchHandle> createOrUpdateAudioPatch(
+            AudioPatchHandle patch, const hidl_vec<AudioPortConfig>& sources,
+            const hidl_vec<AudioPortConfig>& sinks);
 
     // Methods from ParametersUtil.
     char* halGetParameters(const char* keys) 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 9fc90c3..ccdb7b2 100644
--- a/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
+++ b/audio/core/all-versions/default/include/core/default/PrimaryDevice.h
@@ -100,6 +100,9 @@
     Return<Result> close() override;
     Return<Result> addDeviceEffect(AudioPortHandle device, uint64_t effectId) override;
     Return<Result> removeDeviceEffect(AudioPortHandle device, uint64_t effectId) override;
+    Return<void> updateAudioPatch(int32_t previousPatch, const hidl_vec<AudioPortConfig>& sources,
+                                  const hidl_vec<AudioPortConfig>& sinks,
+                                  updateAudioPatch_cb _hidl_cb) override;
 #endif
 
     Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
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 2afbbb8..09ef330 100644
--- a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
@@ -181,3 +181,12 @@
     ASSERT_OK(getDevice()->close());
     ASSERT_TRUE(resetDevice());
 }
+
+TEST_P(AudioPatchHidlTest, UpdatePatchInvalidHandle) {
+    doc::test("Verify that passing an invalid handle to updateAudioPatch is checked");
+    AudioPatchHandle ignored;
+    ASSERT_OK(getDevice()->updateAudioPatch(
+            static_cast<int32_t>(AudioHandleConsts::AUDIO_PATCH_HANDLE_NONE),
+            hidl_vec<AudioPortConfig>(), hidl_vec<AudioPortConfig>(), returnIn(res, ignored)));
+    ASSERT_RESULT(Result::INVALID_ARGUMENTS, res);
+}
diff --git a/camera/device/3.6/Android.bp b/camera/device/3.6/Android.bp
new file mode 100644
index 0000000..8766b93
--- /dev/null
+++ b/camera/device/3.6/Android.bp
@@ -0,0 +1,24 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.camera.device@3.6",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "ICameraDeviceSession.hal",
+        "ICameraOfflineSession.hal",
+    ],
+    interfaces: [
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+        "android.hardware.camera.device@3.5",
+        "android.hardware.graphics.common@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: false,
+}
diff --git a/camera/device/3.6/ICameraDeviceSession.hal b/camera/device/3.6/ICameraDeviceSession.hal
new file mode 100644
index 0000000..00ebcc3
--- /dev/null
+++ b/camera/device/3.6/ICameraDeviceSession.hal
@@ -0,0 +1,132 @@
+/*
+ * 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.camera.device@3.6;
+
+import android.hardware.camera.common@1.0::Status;
+import @3.5::ICameraDeviceSession;
+import @3.5::StreamConfiguration;
+import ICameraOfflineSession;
+
+/**
+ * Camera device active session interface.
+ *
+ * Obtained via ICameraDevice::open(), this interface contains the methods to
+ * configure and request captures from an active camera device.
+ */
+interface ICameraDeviceSession extends @3.5::ICameraDeviceSession {
+    /**
+     * configureStreams_3_6:
+     *
+     * Identical to @3.5::ICameraDeviceSession.configureStreams, except that:
+     *
+     * - a boolean supportOffline is added to HalStreamConfiguration to indicate
+     *   if this stream can be switched to offline mode later.
+     *
+     * @return status Status code for the operation, one of:
+     *     OK:
+     *         On successful stream configuration.
+     *     INTERNAL_ERROR:
+     *         If there has been a fatal error and the device is no longer
+     *         operational. Only close() can be called successfully by the
+     *         framework after this error is returned.
+     *     ILLEGAL_ARGUMENT:
+     *         If the requested stream configuration is invalid. Some examples
+     *         of invalid stream configurations include:
+     *           - Including more than 1 INPUT stream
+     *           - Not including any OUTPUT streams
+     *           - Including streams with unsupported formats, or an unsupported
+     *             size for that format.
+     *           - Including too many output streams of a certain format.
+     *           - Unsupported rotation configuration
+     *           - Stream sizes/formats don't satisfy the
+     *             StreamConfigurationMode requirements
+     *             for non-NORMAL mode, or the requested operation_mode is not
+     *             supported by the HAL.
+     *           - Unsupported usage flag
+     *         The camera service cannot filter out all possible illegal stream
+     *         configurations, since some devices may support more simultaneous
+     *         streams or larger stream resolutions than the minimum required
+     *         for a given camera device hardware level. The HAL must return an
+     *         ILLEGAL_ARGUMENT for any unsupported stream set, and then be
+     *         ready to accept a future valid stream configuration in a later
+     *         configureStreams call.
+     * @return halConfiguration The stream parameters desired by the HAL for
+     *     each stream, including maximum buffers, the usage flags, and the
+     *     override format.
+     */
+    configureStreams_3_6(@3.5::StreamConfiguration requestedConfiguration)
+        generates (Status status, HalStreamConfiguration halConfiguration);
+
+    /**
+     * switchToOffline:
+     *
+     * Switch the current running session from actively streaming mode to the
+     * offline mode. See ICameraOfflineSession for more details.
+     *
+     * The streamsToKeep argument contains list of streams IDs where application
+     * still needs its output. For all streams application does not need anymore,
+     * camera HAL can send ERROR_BUFFER to speed up the transition, or even send
+     * ERROR_REQUEST if all output targets of a request is not needed. By the
+     * time this call returns, camera HAL must have returned all buffers coming
+     * from streams no longer needed and have erased buffer caches of such streams.
+     *
+     * For all requests that are going to be transferred to offline session,
+     * the ICameraDeviceSession is responsible to capture all input buffers from
+     * the image sensor before the switchToOffline call returns. Before
+     * switchToOffline returns, camera HAL must have completed all requests not
+     * switching to offline mode, and collected information on what streams and
+     * requests are going to continue in the offline session, in the
+     * offlineSessionInfo output argument.
+     *
+     * If there are no requests qualified to be transferred to offline session,
+     * the camera HAL must return a null ICameraOfflineSession object with OK
+     * status. In this scenario, the camera HAL still must flush all inflight
+     * requests and unconfigure all streams before returning this call.
+     *
+     * After switchToOffline returns, the ICameraDeviceSession must be back to
+     * unconfigured state as if it is just created and no streams are configured.
+     * Also, camera HAL must not call any methods in ICameraDeviceCallback since
+     * all unfinished requests are now transferred to the offline session.
+     * After the call returns, camera service may then call close to close
+     * the camera device, or call configureStream* again to reconfigure the
+     * camera and then send new capture requests with processCaptureRequest. In
+     * the latter case, it is legitimate for camera HAL to call methods in
+     * ICameraDeviceCallback again in response to the newly submitted capture
+     * requests.
+     *
+     * @return status Status code for the operation, one of:
+     *     OK:
+     *         On switching to offline session and unconfiguring streams
+     *         successfully.
+     *     ILLEGAL_ARGUMENT:
+     *         If camera does not support offline mode in any one of streams
+     *         in streamsToKeep argument. Note that the camera HAL must report
+     *         if a stream supports offline mode in HalStreamConfiguration
+     *         output of configureStreams_3_6 method. If all streams in
+     *         streamsToKeep argument support offline mode, then the camera HAL
+     *         must not return this error.
+     *
+     *
+     * @return offlineSessionInfo Information on what streams and requests will
+     *     be transferred to offline session to continue processing.
+     *
+     * @return offlineSession The offline session object camera service will use
+     *     to interact with.
+     */
+    switchToOffline(vec<int32_t> streamsToKeep) generates (Status status,
+        CameraOfflineSessionInfo offlineSessionInfo, ICameraOfflineSession offlineSession);
+};
diff --git a/camera/device/3.6/ICameraOfflineSession.hal b/camera/device/3.6/ICameraOfflineSession.hal
new file mode 100644
index 0000000..03cea64
--- /dev/null
+++ b/camera/device/3.6/ICameraOfflineSession.hal
@@ -0,0 +1,80 @@
+/*
+ * 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.camera.device@3.6;
+
+import @3.5::ICameraDeviceCallback;
+
+/**
+ * Camera device offline session interface.
+ *
+ * Obtained via ICameraDeviceSession::switchToOffline(), this interface contains
+ * the methods and callback interfaces that define how camera service interacts
+ * with an offline session.
+ *
+ * An offline session contains some unfinished capture requests that were submitted
+ * to the parent ICameraDeviceSession before calling switchToOffline, and is
+ * responsible for delivering these capture results back to camera service regardless
+ * of whether the parent camera device is still opened or not. An offline session must
+ * not have access to the camera device's image sensor. During switchToOffline
+ * call, camera HAL must capture all necessary frames from the image sensor that
+ * is needed for completing the requests offline later.
+ */
+interface ICameraOfflineSession {
+    /**
+     * Set the callbacks for offline session to communicate with camera service.
+     *
+     * Offline session is responsible to store all callbacks the camera HAL
+     * generated after the return of ICameraDeviceSession::switchToOffline, and
+     * send them to camera service once this method is called.
+     *
+     * Camera service must not call this method more than once, so these
+     * callbacks can be assumed to be constant after the first setCallback call.
+     */
+    setCallback(ICameraDeviceCallback cb);
+
+    /**
+     * getCaptureResultMetadataQueue:
+     *
+     * Retrieves the queue used along with
+     * ICameraDeviceCallback#processCaptureResult.
+     *
+     * Clients to ICameraOfflineSession must:
+     * - Call getCaptureRequestMetadataQueue to retrieve the fast message queue;
+     * - In implementation of ICameraDeviceCallback, test whether
+     *   .fmqResultSize field is zero.
+     *     - If .fmqResultSize != 0, read result metadata from the fast message
+     *       queue;
+     *     - otherwise, read result metadata in CaptureResult.result.
+     *
+     * @return queue the queue that implementation writes result metadata to.
+     */
+    getCaptureResultMetadataQueue() generates (fmq_sync<uint8_t> queue);
+
+    /**
+     * Close the offline session and release all resources.
+     *
+     * Camera service may call this method before or after the offline session
+     * has finished all requests it needs to handle. If there are still unfinished
+     * requests when close is called, camera HAL must send ERROR_REQUEST for
+     * all unfinished requests and return all buffers via
+     * ICameraDeviceCallback#processCaptureResult or
+     * ICameraDeviceCallback#returnStreamBuffers.
+     * Also, all buffer caches maintained by the offline session must be erased
+     * before the close call returns.
+     */
+    close();
+};
diff --git a/camera/device/3.6/types.hal b/camera/device/3.6/types.hal
new file mode 100644
index 0000000..743b139
--- /dev/null
+++ b/camera/device/3.6/types.hal
@@ -0,0 +1,143 @@
+/*
+ * 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.camera.device@3.6;
+
+import @3.2::BufferCache;
+import @3.4::HalStream;
+
+/**
+ * OfflineRequest:
+ *
+ * Information about a capture request being switched to offline mode via the
+ * ICameraDeviceSession#switchToOffline method.
+ *
+ */
+struct OfflineRequest {
+    /**
+     * Must match a inflight CaptureRequest sent by camera service
+     */
+    uint32_t frameNumber;
+
+    /**
+     * Stream IDs for outputs that will be returned via ICameraDeviceCallback.
+     * The stream ID must be within one of offline stream listed in
+     * CameraOfflineSessionInfo.
+     * Camera service will validate these pending buffers are matching camera
+     * service's record to make sure no buffers are leaked during the
+     * switchToOffline call.
+     */
+    vec<int32_t> pendingStreams;
+};
+
+/**
+ * OfflineStream:
+ *
+ * Information about a stream being switched to offline mode via the
+ * ICameraDeviceSession#switchToOffline method.
+ *
+ */
+struct OfflineStream {
+    /**
+     * IDs of a stream to be transferred to offline session.
+     *
+     * For devices that do not support HAL buffer management, this must be
+     * one of stream ID listed in streamsToKeep argument of the
+     * switchToOffline call.
+     * For devices that support HAL buffer management, this could be any stream
+     * that was configured right before calling switchToOffline.
+     */
+    int32_t id;
+
+    /**
+     * Number of outstanding buffers that will be returned via offline session
+     */
+    uint32_t numOutstandingBuffers;
+
+    /**
+     * Buffer ID of buffers currently cached between camera service and this
+     * stream, which may or may not be owned by the camera HAL right now.
+     * See StreamBuffer#bufferId for more details.
+     */
+    vec<uint64_t> circulatingBufferIds;
+};
+
+/**
+ * CameraOfflineSessionInfo:
+ *
+ * Information about pending outputs that's being transferred to an offline
+ * session from an active session using the
+ * ICameraDeviceSession#switchToOffline method.
+ *
+ */
+struct CameraOfflineSessionInfo {
+    /**
+     * Information on what streams will be preserved in offline session.
+     * Streams not listed here will be removed by camera service after
+     * switchToOffline call returns.
+     */
+    vec<OfflineStream> offlineStreams;
+
+    /**
+     * Information for requests that will be handled by offline session
+     * Camera service will validate this matches what camera service has on
+     * record.
+     */
+    vec<OfflineRequest> offlineRequests;
+};
+
+/**
+ * HalStream:
+ *
+ * The camera HAL's response to each requested stream configuration.
+ *
+ * This version extends the @3.4 HalStream with the physicalCameraId
+ * field
+ */
+struct HalStream {
+    /**
+     * The definition of HalStream from the prior version.
+     */
+    @3.4::HalStream v3_4;
+
+    /**
+     * Whether this stream can be switch to offline mode.
+     *
+     * For devices that does not support the OFFLINE_PROCESSING capability, this
+     * fields will always be false.
+     *
+     * For devices support the OFFLINE_PROCESSING capability: any input stream
+     * and any output stream that can be output of the input stream must set
+     * this field to true. Also any stream of YUV420_888 format or JPEG format,
+     * with CPU_READ usage flag, must set this field to true. All other streams
+     * are up to camera HAL to advertise support or not, though it is not
+     * recommended to list support for streams with hardware composer or video
+     * encoder usage flags as these streams tend to be targeted continuously and
+     * can lead to long latency when trying to switch to offline.
+     *
+     */
+    bool supportOffline;
+};
+
+/**
+ * HalStreamConfiguration:
+ *
+ * Identical to @3.4::HalStreamConfiguration, except that it contains @3.6::HalStream entries.
+ *
+ */
+struct HalStreamConfiguration {
+    vec<HalStream> streams;
+};
diff --git a/camera/metadata/3.2/types.hal b/camera/metadata/3.2/types.hal
index cef0397..f5034cc 100644
--- a/camera/metadata/3.2/types.hal
+++ b/camera/metadata/3.2/types.hal
@@ -410,7 +410,7 @@
      *
      * <p>List of the maximum number of regions that can be used for metering in
      * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
-     * this corresponds to the the maximum number of elements in
+     * this corresponds to the maximum number of elements in
      * ANDROID_CONTROL_AE_REGIONS, ANDROID_CONTROL_AWB_REGIONS,
      * and ANDROID_CONTROL_AF_REGIONS.</p>
      *
diff --git a/camera/metadata/3.5/Android.bp b/camera/metadata/3.5/Android.bp
index 4ebd069..224c369 100644
--- a/camera/metadata/3.5/Android.bp
+++ b/camera/metadata/3.5/Android.bp
@@ -16,4 +16,3 @@
     ],
     gen_java: true,
 }
-
diff --git a/camera/metadata/3.5/types.hal b/camera/metadata/3.5/types.hal
index b9451c8..2fd8a0d 100644
--- a/camera/metadata/3.5/types.hal
+++ b/camera/metadata/3.5/types.hal
@@ -71,4 +71,5 @@
 enum CameraMetadataEnumAndroidRequestAvailableCapabilities :
         @3.4::CameraMetadataEnumAndroidRequestAvailableCapabilities {
     ANDROID_REQUEST_AVAILABLE_CAPABILITIES_SYSTEM_CAMERA,
+    ANDROID_REQUEST_AVAILABLE_CAPABILITIES_OFFLINE_PROCESSING,
 };
diff --git a/common/aidl/Android.bp b/common/aidl/Android.bp
new file mode 100644
index 0000000..6f2d292
--- /dev/null
+++ b/common/aidl/Android.bp
@@ -0,0 +1,21 @@
+aidl_interface {
+    name: "vintf-common",
+    host_supported: true,
+    vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
+    srcs: [
+        "android/hardware/common/*.aidl",
+    ],
+    stability: "vintf",
+    backend: {
+        java: {
+            enabled: false,
+        },
+        cpp: {
+            enabled: false,
+        },
+    },
+}
diff --git a/common/aidl/android/hardware/common/NativeHandle.aidl b/common/aidl/android/hardware/common/NativeHandle.aidl
new file mode 100644
index 0000000..2c250a2
--- /dev/null
+++ b/common/aidl/android/hardware/common/NativeHandle.aidl
@@ -0,0 +1,26 @@
+/*
+ * 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.common;
+
+/**
+ * Representation of a native handle.
+ */
+@VintfStability
+parcelable NativeHandle {
+    ParcelFileDescriptor[] fds;
+    int[] ints;
+}
diff --git a/contexthub/1.0/vts/functional/Android.bp b/contexthub/1.0/vts/functional/Android.bp
index aef0340..9e99c33 100644
--- a/contexthub/1.0/vts/functional/Android.bp
+++ b/contexthub/1.0/vts/functional/Android.bp
@@ -19,6 +19,8 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalContexthubV1_0TargetTest.cpp"],
     static_libs: ["android.hardware.contexthub@1.0"],
-    test_suites: ["general-tests"],
+    test_suites: [
+        "general-tests",
+        "vts-core",
+    ],
 }
-
diff --git a/contexthub/1.0/vts/functional/OWNERS b/contexthub/1.0/vts/functional/OWNERS
index 045cc4e..161b2f0 100644
--- a/contexthub/1.0/vts/functional/OWNERS
+++ b/contexthub/1.0/vts/functional/OWNERS
@@ -4,5 +4,5 @@
 stange@google.com
 
 #VTS team
-yim@google.com
+dshi@google.com
 trong@google.com
diff --git a/contexthub/1.0/vts/functional/VtsHalContexthubV1_0TargetTest.cpp b/contexthub/1.0/vts/functional/VtsHalContexthubV1_0TargetTest.cpp
index 629477a..a1d173b 100644
--- a/contexthub/1.0/vts/functional/VtsHalContexthubV1_0TargetTest.cpp
+++ b/contexthub/1.0/vts/functional/VtsHalContexthubV1_0TargetTest.cpp
@@ -16,13 +16,14 @@
 
 #define LOG_TAG "contexthub_hidl_hal_test"
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/contexthub/1.0/IContexthub.h>
 #include <android/hardware/contexthub/1.0/IContexthubCallback.h>
 #include <android/hardware/contexthub/1.0/types.h>
 #include <android/log.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 #include <log/log.h>
 
 #include <cinttypes>
@@ -76,69 +77,44 @@
 }
 
 // Gets a list of valid hub IDs in the system
-std::vector<uint32_t> getHubIds() {
-  static std::vector<uint32_t> hubIds;
+std::vector<std::string> getHubIds(const std::string& service_name) {
+    std::vector<std::string> hubIds;
 
-  if (hubIds.size() == 0) {
-    sp<IContexthub> hubApi = ::testing::VtsHalHidlTargetTestBase::getService<IContexthub>();
+    sp<IContexthub> hubApi = IContexthub::getService(service_name);
 
     if (hubApi != nullptr) {
-      for (const ContextHub& hub : getHubsSync(hubApi)) {
-        hubIds.push_back(hub.hubId);
-      }
+        for (const ContextHub& hub : getHubsSync(hubApi)) {
+            hubIds.push_back(std::to_string(hub.hubId));
+        }
     }
-  }
 
-  ALOGD("Running tests against all %zu reported hubs", hubIds.size());
-  return hubIds;
+    ALOGD("Running tests against all %zu reported hubs for service %s", hubIds.size(),
+          service_name.c_str());
+    return hubIds;
 }
 
-// Test environment for Contexthub HIDL HAL.
-class ContexthubHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
- public:
-  // get the test environment singleton
-  static ContexthubHidlEnvironment* Instance() {
-    static ContexthubHidlEnvironment* instance = new ContexthubHidlEnvironment;
-    return instance;
-  }
+// Test fixture parameterized by hub ID, initializes the HAL and makes the context hub API handle
+// available.
+class ContexthubHidlTest : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
+  public:
+    virtual void SetUp() override {
+        hubApi = IContexthub::getService(std::get<0>(GetParam()));
+        ASSERT_NE(hubApi, nullptr);
 
-  virtual void registerTestServices() override { registerTestService<IContexthub>(); }
- private:
-  ContexthubHidlEnvironment() {}
-};
+        // getHubs() must be called at least once for proper initialization of the
+        // HAL implementation
+        getHubsSync(hubApi);
+    }
 
-// Base test fixture that initializes the HAL and makes the context hub API
-// handle available
-class ContexthubHidlTestBase : public ::testing::VtsHalHidlTargetTestBase {
- public:
-  virtual void SetUp() override {
-    hubApi = ::testing::VtsHalHidlTargetTestBase::getService<IContexthub>(
-        ContexthubHidlEnvironment::Instance()->getServiceName<IContexthub>());
-    ASSERT_NE(hubApi, nullptr);
+    uint32_t getHubId() { return std::stoi(std::get<1>(GetParam())); }
 
-    // getHubs() must be called at least once for proper initialization of the
-    // HAL implementation
-    getHubsSync(hubApi);
-  }
+    Result registerCallback(sp<IContexthubCallback> cb) {
+        Result result = hubApi->registerCallback(getHubId(), cb);
+        ALOGD("Registered callback, result %" PRIu32, result);
+        return result;
+    }
 
-  virtual void TearDown() override {}
-
-  sp<IContexthub> hubApi;
-};
-
-// Test fixture parameterized by hub ID
-class ContexthubHidlTest : public ContexthubHidlTestBase,
-                           public ::testing::WithParamInterface<uint32_t> {
- public:
-  uint32_t getHubId() {
-    return GetParam();
-  }
-
-  Result registerCallback(sp<IContexthubCallback> cb) {
-    Result result = hubApi->registerCallback(getHubId(), cb);
-    ALOGD("Registered callback, result %" PRIu32, result);
-    return result;
-  }
+    sp<IContexthub> hubApi;
 };
 
 // Base callback implementation that just logs all callbacks by default
@@ -202,24 +178,24 @@
 }
 
 // Ensures that the metadata reported in getHubs() is sane
-TEST_F(ContexthubHidlTestBase, TestGetHubs) {
-  hidl_vec<ContextHub> hubs = getHubsSync(hubApi);
-  ALOGD("System reports %zu hubs", hubs.size());
+TEST_P(ContexthubHidlTest, TestGetHubs) {
+    hidl_vec<ContextHub> hubs = getHubsSync(hubApi);
+    ALOGD("System reports %zu hubs", hubs.size());
 
-  for (const ContextHub& hub : hubs) {
-    ALOGD("Checking hub ID %" PRIu32, hub.hubId);
+    for (const ContextHub& hub : hubs) {
+        ALOGD("Checking hub ID %" PRIu32, hub.hubId);
 
-    EXPECT_FALSE(hub.name.empty());
-    EXPECT_FALSE(hub.vendor.empty());
-    EXPECT_FALSE(hub.toolchain.empty());
-    EXPECT_GT(hub.peakMips, 0);
-    EXPECT_GE(hub.stoppedPowerDrawMw, 0);
-    EXPECT_GE(hub.sleepPowerDrawMw, 0);
-    EXPECT_GT(hub.peakPowerDrawMw, 0);
+        EXPECT_FALSE(hub.name.empty());
+        EXPECT_FALSE(hub.vendor.empty());
+        EXPECT_FALSE(hub.toolchain.empty());
+        EXPECT_GT(hub.peakMips, 0);
+        EXPECT_GE(hub.stoppedPowerDrawMw, 0);
+        EXPECT_GE(hub.sleepPowerDrawMw, 0);
+        EXPECT_GT(hub.peakPowerDrawMw, 0);
 
-    // Minimum 128 byte MTU as required by CHRE API v1.0
-    EXPECT_GE(hub.maxSupportedMsgLen, UINT32_C(128));
-  }
+        // Minimum 128 byte MTU as required by CHRE API v1.0
+        EXPECT_GE(hub.maxSupportedMsgLen, UINT32_C(128));
+    }
 }
 
 TEST_P(ContexthubHidlTest, TestRegisterCallback) {
@@ -388,20 +364,28 @@
                                       cb->promise.get_future()));
 }
 
-// Parameterize all SingleContexthubTest tests against each valid hub ID
-INSTANTIATE_TEST_CASE_P(HubIdSpecificTests, ContexthubHidlTest,
-                        ::testing::ValuesIn(getHubIds()));
-INSTANTIATE_TEST_CASE_P(HubIdSpecificTests, ContexthubTxnTest,
-                        ::testing::ValuesIn(getHubIds()));
+// Return the test parameters of a vecter of tuples for all IContexthub services and each of its hub
+// id: <service name of IContexthub, hub id of the IContexthub service>
+static std::vector<std::tuple<std::string, std::string>> get_parameters() {
+    std::vector<std::tuple<std::string, std::string>> parameters;
+    std::vector<std::string> service_names =
+            android::hardware::getAllHalInstanceNames(IContexthub::descriptor);
+    for (const std::string& service_name : service_names) {
+        std::vector<std::string> ids = getHubIds(service_name);
+        for (const std::string& id : ids) {
+            parameters.push_back(std::make_tuple(service_name, id));
+        }
+    }
 
-} // anonymous namespace
-
-int main(int argc, char **argv) {
-  ::testing::AddGlobalTestEnvironment(ContexthubHidlEnvironment::Instance());
-  ::testing::InitGoogleTest(&argc, argv);
-  ContexthubHidlEnvironment::Instance()->init(&argc, argv);
-  int status = RUN_ALL_TESTS();
-  ALOGI ("Test result = %d", status);
-  return status;
+    return parameters;
 }
 
+static std::vector<std::tuple<std::string, std::string>> kTestParameters = get_parameters();
+
+INSTANTIATE_TEST_SUITE_P(HubIdSpecificTests, ContexthubHidlTest, testing::ValuesIn(kTestParameters),
+                         android::hardware::PrintInstanceTupleNameToString<>);
+
+INSTANTIATE_TEST_SUITE_P(HubIdSpecificTests, ContexthubTxnTest, testing::ValuesIn(kTestParameters),
+                         android::hardware::PrintInstanceTupleNameToString<>);
+
+}  // anonymous namespace
diff --git a/current.txt b/current.txt
index 999b207..5a3ed77 100644
--- a/current.txt
+++ b/current.txt
@@ -585,6 +585,8 @@
 f5bc6aa840db933cb9fd36668b06d3e2021cf5384bb70e459f22e2f2f921fba5 android.hardware.automotive.evs@1.0::IEvsEnumerator
 d3a344b7bd4c0d2658ae7209f55a979b8f53f361fd00f4fca29d5baa56d11fd2 android.hardware.automotive.evs@1.0::types
 2410dd02d67786a732d36e80b0f8ccf55086604ef37f9838e2013ff2c571e404 android.hardware.camera.device@3.5::types
+cd06a7911b9acd4a653bbf7133888878fbcb3f84be177c7a3f1becaae3d8618f android.hardware.camera.metadata@3.2::types
+2bdc6baf3f80f7a87fb5a5d03599e2ee37aadd3dbb107b7c9c060657702942a8 android.hardware.camera.metadata@3.5::types
 b69a7615c508acf5c5201efd1bfa3262167874fc3594e2db5a3ff93addd8ac75 android.hardware.keymaster@4.0::IKeymasterDevice
 eb2fa0c883c2185d514be0b84c179b283753ef0c1b77b45b4f359bd23bba8b75 android.hardware.neuralnetworks@1.0::IPreparedModel
 f1109cbb10297b7429a11fab42afa912710b303c9bf20bd5cdb8bd57b9c84186 android.hardware.neuralnetworks@1.0::types
@@ -598,7 +600,7 @@
 
 # HALs released in Android R
 e966a3437d6a98d9d9e14e9d672088771716031900c0deb55a0946c751a03a44 android.hardware.audio@6.0::types
-4540d12fe1cea996f21bd1712d4ae0906dcbd58177dac494efc605b004902d43 android.hardware.audio@6.0::IDevice
+dd3e9280be60a5e042331c1046d13938e2cc323dc4b267cc74d544bf62fc0314 android.hardware.audio@6.0::IDevice
 2402876cbc23c0de3690a665eca84fd3857d1808dba5cad25ce272f81ecef8c9 android.hardware.audio@6.0::IDevicesFactory
 bca5379d5065e2e08b6ad7308ffc8a71a972fc0698bec678ea32eea786d01cb5 android.hardware.audio@6.0::IPrimaryDevice
 fd1f1b29f26b42e886220f04a08086c00e5ade9d7b53f095438e578ab9d42a93 android.hardware.audio@6.0::IStream
diff --git a/gnss/1.1/vts/functional/gnss_hal_test.cpp b/gnss/1.1/vts/functional/gnss_hal_test.cpp
index 24de37d..88fbff8 100644
--- a/gnss/1.1/vts/functional/gnss_hal_test.cpp
+++ b/gnss/1.1/vts/functional/gnss_hal_test.cpp
@@ -172,7 +172,14 @@
                 hasGnssHalVersion_2_0 = registered.size() != 0;
             });
 
-    return hasGnssHalVersion_1_1 && !hasGnssHalVersion_2_0;
+    bool hasGnssHalVersion_2_1 = false;
+    manager->listManifestByInterface(
+            "android.hardware.gnss@2.1::IGnss",
+            [&hasGnssHalVersion_2_1](const hidl_vec<hidl_string>& registered) {
+                hasGnssHalVersion_2_1 = registered.size() != 0;
+            });
+
+    return hasGnssHalVersion_1_1 && !hasGnssHalVersion_2_0 && !hasGnssHalVersion_2_1;
 }
 
 GnssConstellationType GnssHalTest::startLocationAndGetNonGpsConstellation(
diff --git a/gnss/2.0/vts/functional/gnss_hal_test.cpp b/gnss/2.0/vts/functional/gnss_hal_test.cpp
index 8ca3f68..b3a3203 100644
--- a/gnss/2.0/vts/functional/gnss_hal_test.cpp
+++ b/gnss/2.0/vts/functional/gnss_hal_test.cpp
@@ -16,11 +16,14 @@
 
 #define LOG_TAG "GnssHalTest"
 
+#include <android/hidl/manager/1.2/IServiceManager.h>
 #include <gnss_hal_test.h>
+#include <gtest/gtest.h>
+#include <hidl/ServiceManagement.h>
 #include <chrono>
 #include "Utils.h"
 
-#include <gtest/gtest.h>
+using ::android::hardware::hidl_string;
 
 using ::android::hardware::gnss::common::Utils;
 
@@ -99,7 +102,6 @@
 
     EXPECT_TRUE(result.isOk());
     EXPECT_TRUE(result);
-
     /*
      * GnssLocationProvider support of AGPS SUPL & XtraDownloader is not available in VTS,
      * so allow time to demodulate ephemeris over the air.
@@ -148,6 +150,27 @@
     }
 }
 
+bool GnssHalTest::IsGnssHalVersion_2_0() const {
+    using ::android::hidl::manager::V1_2::IServiceManager;
+    sp<IServiceManager> manager = ::android::hardware::defaultServiceManager1_2();
+
+    bool hasGnssHalVersion_2_0 = false;
+    manager->listManifestByInterface(
+            "android.hardware.gnss@2.0::IGnss",
+            [&hasGnssHalVersion_2_0](const hidl_vec<hidl_string>& registered) {
+                hasGnssHalVersion_2_0 = registered.size() != 0;
+            });
+
+    bool hasGnssHalVersion_2_1 = false;
+    manager->listManifestByInterface(
+            "android.hardware.gnss@2.1::IGnss",
+            [&hasGnssHalVersion_2_1](const hidl_vec<hidl_string>& registered) {
+                hasGnssHalVersion_2_1 = registered.size() != 0;
+            });
+
+    return hasGnssHalVersion_2_0 && !hasGnssHalVersion_2_1;
+}
+
 GnssHalTest::GnssCallback::GnssCallback()
     : info_cbq_("system_info"),
       name_cbq_("name"),
diff --git a/gnss/2.0/vts/functional/gnss_hal_test.h b/gnss/2.0/vts/functional/gnss_hal_test.h
index 4f7b87a..55dc1bc 100644
--- a/gnss/2.0/vts/functional/gnss_hal_test.h
+++ b/gnss/2.0/vts/functional/gnss_hal_test.h
@@ -181,6 +181,12 @@
     void StopAndClearLocations();
 
     /*
+     * IsGnssHalVersion_2_0:
+     * returns  true if the GNSS HAL version is exactly 2.0.
+     */
+    bool IsGnssHalVersion_2_0() const;
+
+    /*
      * SetPositionMode:
      * Helper function to set positioning mode and verify output
      */
diff --git a/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp b/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp
index c442cc6..0fa08b9 100644
--- a/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp
+++ b/gnss/2.0/vts/functional/gnss_hal_test_cases.cpp
@@ -182,6 +182,10 @@
  * 3. state is valid.
  */
 TEST_P(GnssHalTest, TestGnssMeasurementFields) {
+    if (!IsGnssHalVersion_2_0()) {
+        ALOGI("Test GnssMeasurementFields skipped. GNSS HAL version is greater than 2.0.");
+        return;
+    }
     const int kFirstGnssMeasurementTimeoutSeconds = 10;
 
     auto gnssMeasurement = gnss_hal_->getExtensionGnssMeasurement_2_0();
@@ -464,7 +468,7 @@
         }
         EXPECT_LE(location_called_count, i);
         if (location_called_count != i) {
-            ALOGW("GetLocationLowPower test - not enough locations received. %d vs. %d expected ",
+            ALOGW("GetLocationLowPower test - too many locations received. %d vs. %d expected ",
                   location_called_count, i);
         }
 
@@ -601,6 +605,11 @@
  * formerly strongest satellite
  */
 TEST_P(GnssHalTest, BlacklistIndividualSatellites) {
+    if (!IsGnssHalVersion_2_0()) {
+        ALOGI("Test BlacklistIndividualSatellites skipped. GNSS HAL version is greater than 2.0.");
+        return;
+    }
+
     if (!(gnss_cb_->last_capabilities_ & IGnssCallback::Capabilities::SATELLITE_BLACKLIST)) {
         ALOGI("Test BlacklistIndividualSatellites skipped. SATELLITE_BLACKLIST capability"
               " not supported.");
@@ -746,6 +755,11 @@
  * 4a & b) Clean up by turning off location, and send in empty blacklist.
  */
 TEST_P(GnssHalTest, BlacklistConstellation) {
+    if (!IsGnssHalVersion_2_0()) {
+        ALOGI("Test BlacklistConstellation skipped. GNSS HAL version is greater than 2.0.");
+        return;
+    }
+
     if (!(gnss_cb_->last_capabilities_ & IGnssCallback::Capabilities::SATELLITE_BLACKLIST)) {
         ALOGI("Test BlacklistConstellation skipped. SATELLITE_BLACKLIST capability not supported.");
         return;
diff --git a/gnss/2.1/default/Android.bp b/gnss/2.1/default/Android.bp
index 57233aa..7ef9990 100644
--- a/gnss/2.1/default/Android.bp
+++ b/gnss/2.1/default/Android.bp
@@ -23,8 +23,9 @@
     srcs: [
         "Gnss.cpp",
         "GnssMeasurement.cpp",
+        "GnssMeasurementCorrections.cpp",
         "GnssConfiguration.cpp",
-        "service.cpp"
+        "service.cpp",
     ],
     shared_libs: [
         "libhidlbase",
diff --git a/gnss/2.1/default/Gnss.cpp b/gnss/2.1/default/Gnss.cpp
index 384fd49..6b61a82 100644
--- a/gnss/2.1/default/Gnss.cpp
+++ b/gnss/2.1/default/Gnss.cpp
@@ -18,11 +18,14 @@
 
 #include "Gnss.h"
 #include "GnssMeasurement.h"
+#include "GnssMeasurementCorrections.h"
 #include "Utils.h"
 
 #include <log/log.h>
 
 using ::android::hardware::gnss::common::Utils;
+using ::android::hardware::gnss::measurement_corrections::V1_0::implementation::
+        GnssMeasurementCorrections;
 
 namespace android {
 namespace hardware {
@@ -31,6 +34,7 @@
 namespace implementation {
 
 sp<V2_1::IGnssCallback> Gnss::sGnssCallback_2_1 = nullptr;
+sp<V2_0::IGnssCallback> Gnss::sGnssCallback_2_0 = nullptr;
 
 Gnss::Gnss() : mMinIntervalMs(1000), mGnssConfiguration{new GnssConfiguration()} {}
 
@@ -86,7 +90,8 @@
 }
 
 Return<void> Gnss::cleanup() {
-    // TODO implement
+    sGnssCallback_2_1 = nullptr;
+    sGnssCallback_2_0 = nullptr;
     return Void();
 }
 
@@ -169,8 +174,9 @@
 }
 
 Return<bool> Gnss::setPositionMode_1_1(V1_0::IGnss::GnssPositionMode,
-                                       V1_0::IGnss::GnssPositionRecurrence, uint32_t, uint32_t,
-                                       uint32_t, bool) {
+                                       V1_0::IGnss::GnssPositionRecurrence, uint32_t minIntervalMs,
+                                       uint32_t, uint32_t, bool) {
+    mMinIntervalMs = minIntervalMs;
     return true;
 }
 
@@ -190,14 +196,42 @@
 }
 
 // Methods from V2_0::IGnss follow.
-Return<bool> Gnss::setCallback_2_0(const sp<V2_0::IGnssCallback>&) {
-    // TODO implement
-    return bool{};
+Return<bool> Gnss::setCallback_2_0(const sp<V2_0::IGnssCallback>& callback) {
+    ALOGD("Gnss::setCallback_2_0");
+    if (callback == nullptr) {
+        ALOGE("%s: Null callback ignored", __func__);
+        return false;
+    }
+
+    sGnssCallback_2_0 = callback;
+
+    using Capabilities = V2_0::IGnssCallback::Capabilities;
+    const auto capabilities = Capabilities::MEASUREMENTS | Capabilities::MEASUREMENT_CORRECTIONS |
+                              Capabilities::LOW_POWER_MODE | Capabilities::SATELLITE_BLACKLIST;
+    auto ret = sGnssCallback_2_0->gnssSetCapabilitiesCb_2_0(capabilities);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    V1_1::IGnssCallback::GnssSystemInfo gnssInfo = {.yearOfHw = 2019};
+
+    ret = sGnssCallback_2_0->gnssSetSystemInfoCb(gnssInfo);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    auto gnssName = "Google Mock GNSS Implementation v2.1";
+    ret = sGnssCallback_2_0->gnssNameCb(gnssName);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+
+    return true;
 }
 
 Return<sp<V2_0::IGnssConfiguration>> Gnss::getExtensionGnssConfiguration_2_0() {
-    // TODO implement
-    return ::android::sp<V2_0::IGnssConfiguration>{};
+    ALOGD("Gnss::getExtensionGnssConfiguration_2_0");
+    return mGnssConfiguration;
 }
 
 Return<sp<V2_0::IGnssDebug>> Gnss::getExtensionGnssDebug_2_0() {
@@ -216,14 +250,14 @@
 }
 
 Return<sp<V2_0::IGnssMeasurement>> Gnss::getExtensionGnssMeasurement_2_0() {
-    // TODO implement
-    return ::android::sp<V2_0::IGnssMeasurement>{};
+    ALOGD("Gnss::getExtensionGnssMeasurement_2_0");
+    return new GnssMeasurement();
 }
 
 Return<sp<measurement_corrections::V1_0::IMeasurementCorrections>>
 Gnss::getExtensionMeasurementCorrections() {
-    // TODO implement
-    return ::android::sp<measurement_corrections::V1_0::IMeasurementCorrections>{};
+    ALOGD("Gnss::getExtensionMeasurementCorrections()");
+    return new GnssMeasurementCorrections();
 }
 
 Return<sp<visibility_control::V1_0::IGnssVisibilityControl>> Gnss::getExtensionVisibilityControl() {
@@ -237,7 +271,7 @@
 }
 
 Return<bool> Gnss::injectBestLocation_2_0(const V2_0::GnssLocation&) {
-    // TODO implement
+    // TODO(b/124012850): Implement function.
     return bool{};
 }
 
@@ -281,11 +315,13 @@
 }
 
 Return<sp<V2_1::IGnssConfiguration>> Gnss::getExtensionGnssConfiguration_2_1() {
+    ALOGD("Gnss::getExtensionGnssConfiguration_2_1");
     return mGnssConfiguration;
 }
 
 void Gnss::reportSvStatus(const hidl_vec<GnssSvInfo>& svInfoList) const {
     std::unique_lock<std::mutex> lock(mMutex);
+    // TODO(skz): update this to call 2_0 callback if non-null
     if (sGnssCallback_2_1 == nullptr) {
         ALOGE("%s: sGnssCallback v2.1 is null.", __func__);
         return;
@@ -298,13 +334,20 @@
 
 void Gnss::reportLocation(const V2_0::GnssLocation& location) const {
     std::unique_lock<std::mutex> lock(mMutex);
-    if (sGnssCallback_2_1 == nullptr) {
-        ALOGE("%s: sGnssCallback v2.1 is null.", __func__);
+    if (sGnssCallback_2_1 != nullptr) {
+        auto ret = sGnssCallback_2_1->gnssLocationCb_2_0(location);
+        if (!ret.isOk()) {
+            ALOGE("%s: Unable to invoke callback v2.1", __func__);
+        }
         return;
     }
-    auto ret = sGnssCallback_2_1->gnssLocationCb_2_0(location);
+    if (sGnssCallback_2_0 == nullptr) {
+        ALOGE("%s: No non-null callback", __func__);
+        return;
+    }
+    auto ret = sGnssCallback_2_0->gnssLocationCb_2_0(location);
     if (!ret.isOk()) {
-        ALOGE("%s: Unable to invoke callback", __func__);
+        ALOGE("%s: Unable to invoke callback v2.0", __func__);
     }
 }
 
diff --git a/gnss/2.1/default/Gnss.h b/gnss/2.1/default/Gnss.h
index 674b070..7917bbd 100644
--- a/gnss/2.1/default/Gnss.h
+++ b/gnss/2.1/default/Gnss.h
@@ -95,6 +95,7 @@
     void reportSvStatus(const hidl_vec<GnssSvInfo>&) const;
 
     static sp<V2_1::IGnssCallback> sGnssCallback_2_1;
+    static sp<V2_0::IGnssCallback> sGnssCallback_2_0;
     std::atomic<long> mMinIntervalMs;
     sp<GnssConfiguration> mGnssConfiguration;
     std::atomic<bool> mIsActive;
diff --git a/gnss/2.1/default/GnssMeasurement.cpp b/gnss/2.1/default/GnssMeasurement.cpp
index ebfa7dd..34e20e5 100644
--- a/gnss/2.1/default/GnssMeasurement.cpp
+++ b/gnss/2.1/default/GnssMeasurement.cpp
@@ -29,7 +29,8 @@
 namespace V2_1 {
 namespace implementation {
 
-sp<V2_1::IGnssMeasurementCallback> GnssMeasurement::sCallback = nullptr;
+sp<V2_1::IGnssMeasurementCallback> GnssMeasurement::sCallback_2_1 = nullptr;
+sp<V2_0::IGnssMeasurementCallback> GnssMeasurement::sCallback_2_0 = nullptr;
 
 GnssMeasurement::GnssMeasurement() : mMinIntervalMillis(1000) {}
 
@@ -48,7 +49,8 @@
     ALOGD("close");
     std::unique_lock<std::mutex> lock(mMutex);
     stop();
-    sCallback = nullptr;
+    sCallback_2_1 = nullptr;
+    sCallback_2_0 = nullptr;
     return Void();
 }
 
@@ -61,9 +63,18 @@
 
 // Methods from V2_0::IGnssMeasurement follow.
 Return<V1_0::IGnssMeasurement::GnssMeasurementStatus> GnssMeasurement::setCallback_2_0(
-        const sp<V2_0::IGnssMeasurementCallback>&, bool) {
-    // TODO implement
-    return V1_0::IGnssMeasurement::GnssMeasurementStatus{};
+        const sp<V2_0::IGnssMeasurementCallback>& callback, bool) {
+    ALOGD("setCallback_2_0");
+    std::unique_lock<std::mutex> lock(mMutex);
+    sCallback_2_0 = callback;
+
+    if (mIsActive) {
+        ALOGW("GnssMeasurement callback already set. Resetting the callback...");
+        stop();
+    }
+    start();
+
+    return V1_0::IGnssMeasurement::GnssMeasurementStatus::SUCCESS;
 }
 
 // Methods from V2_1::IGnssMeasurement follow.
@@ -71,7 +82,7 @@
         const sp<V2_1::IGnssMeasurementCallback>& callback, bool) {
     ALOGD("setCallback_2_1");
     std::unique_lock<std::mutex> lock(mMutex);
-    sCallback = callback;
+    sCallback_2_1 = callback;
 
     if (mIsActive) {
         ALOGW("GnssMeasurement callback already set. Resetting the callback...");
@@ -87,8 +98,13 @@
     mIsActive = true;
     mThread = std::thread([this]() {
         while (mIsActive == true) {
-            auto measurement = Utils::getMockMeasurementV2_1();
-            this->reportMeasurement(measurement);
+            if (sCallback_2_1 != nullptr) {
+                auto measurement = Utils::getMockMeasurementV2_1();
+                this->reportMeasurement(measurement);
+            } else {
+                auto measurement = Utils::getMockMeasurementV2_0();
+                this->reportMeasurement(measurement);
+            }
 
             std::this_thread::sleep_for(std::chrono::milliseconds(mMinIntervalMillis));
         }
@@ -103,14 +119,27 @@
     }
 }
 
+void GnssMeasurement::reportMeasurement(const GnssDataV2_0& data) {
+    ALOGD("reportMeasurement()");
+    std::unique_lock<std::mutex> lock(mMutex);
+    if (sCallback_2_0 == nullptr) {
+        ALOGE("%s: GnssMeasurement::sCallback_2_0 is null.", __func__);
+        return;
+    }
+    auto ret = sCallback_2_0->gnssMeasurementCb_2_0(data);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+    }
+}
+
 void GnssMeasurement::reportMeasurement(const GnssDataV2_1& data) {
     ALOGD("reportMeasurement()");
     std::unique_lock<std::mutex> lock(mMutex);
-    if (sCallback == nullptr) {
-        ALOGE("%s: GnssMeasurement::sCallback is null.", __func__);
+    if (sCallback_2_1 == nullptr) {
+        ALOGE("%s: GnssMeasurement::sCallback_2_1 is null.", __func__);
         return;
     }
-    auto ret = sCallback->gnssMeasurementCb_2_1(data);
+    auto ret = sCallback_2_1->gnssMeasurementCb_2_1(data);
     if (!ret.isOk()) {
         ALOGE("%s: Unable to invoke callback", __func__);
     }
diff --git a/gnss/2.1/default/GnssMeasurement.h b/gnss/2.1/default/GnssMeasurement.h
index ee32903..3ed7bc5 100644
--- a/gnss/2.1/default/GnssMeasurement.h
+++ b/gnss/2.1/default/GnssMeasurement.h
@@ -30,6 +30,7 @@
 namespace implementation {
 
 using GnssDataV2_1 = V2_1::IGnssMeasurementCallback::GnssData;
+using GnssDataV2_0 = V2_0::IGnssMeasurementCallback::GnssData;
 
 using ::android::sp;
 using ::android::hardware::hidl_array;
@@ -62,9 +63,11 @@
   private:
     void start();
     void stop();
+    void reportMeasurement(const GnssDataV2_0&);
     void reportMeasurement(const GnssDataV2_1&);
 
-    static sp<IGnssMeasurementCallback> sCallback;
+    static sp<V2_1::IGnssMeasurementCallback> sCallback_2_1;
+    static sp<V2_0::IGnssMeasurementCallback> sCallback_2_0;
     std::atomic<long> mMinIntervalMillis;
     std::atomic<bool> mIsActive;
     std::thread mThread;
diff --git a/gnss/2.1/default/GnssMeasurementCorrections.cpp b/gnss/2.1/default/GnssMeasurementCorrections.cpp
new file mode 100644
index 0000000..2bf5601
--- /dev/null
+++ b/gnss/2.1/default/GnssMeasurementCorrections.cpp
@@ -0,0 +1,75 @@
+/*
+ * 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 "GnssMeasurementCorrections"
+
+#include "GnssMeasurementCorrections.h"
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace measurement_corrections {
+namespace V1_0 {
+namespace implementation {
+
+// Methods from V1_0::IMeasurementCorrections follow.
+Return<bool> GnssMeasurementCorrections::setCorrections(const MeasurementCorrections& corrections) {
+    ALOGD("setCorrections");
+    ALOGD("corrections = lat: %f, lng: %f, alt: %f, hUnc: %f, vUnc: %f, toa: %llu, "
+          "satCorrections.size: %d",
+          corrections.latitudeDegrees, corrections.longitudeDegrees, corrections.altitudeMeters,
+          corrections.horizontalPositionUncertaintyMeters,
+          corrections.verticalPositionUncertaintyMeters,
+          static_cast<unsigned long long>(corrections.toaGpsNanosecondsOfWeek),
+          static_cast<int>(corrections.satCorrections.size()));
+    for (auto singleSatCorrection : corrections.satCorrections) {
+        ALOGD("singleSatCorrection = flags: %d, constellation: %d, svid: %d, cfHz: %f, probLos: %f,"
+              " epl: %f, eplUnc: %f",
+              static_cast<int>(singleSatCorrection.singleSatCorrectionFlags),
+              static_cast<int>(singleSatCorrection.constellation),
+              static_cast<int>(singleSatCorrection.svid), singleSatCorrection.carrierFrequencyHz,
+              singleSatCorrection.probSatIsLos, singleSatCorrection.excessPathLengthMeters,
+              singleSatCorrection.excessPathLengthUncertaintyMeters);
+        ALOGD("reflecting plane = lat: %f, lng: %f, alt: %f, azm: %f",
+              singleSatCorrection.reflectingPlane.latitudeDegrees,
+              singleSatCorrection.reflectingPlane.longitudeDegrees,
+              singleSatCorrection.reflectingPlane.altitudeMeters,
+              singleSatCorrection.reflectingPlane.azimuthDegrees);
+    }
+
+    return true;
+}
+
+Return<bool> GnssMeasurementCorrections::setCallback(
+        const sp<V1_0::IMeasurementCorrectionsCallback>& callback) {
+    using Capabilities = V1_0::IMeasurementCorrectionsCallback::Capabilities;
+    auto ret =
+            callback->setCapabilitiesCb(Capabilities::LOS_SATS | Capabilities::EXCESS_PATH_LENGTH |
+                                        Capabilities::REFLECTING_PLANE);
+    if (!ret.isOk()) {
+        ALOGE("%s: Unable to invoke callback", __func__);
+        return false;
+    }
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace measurement_corrections
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/gnss/2.1/default/GnssMeasurementCorrections.h b/gnss/2.1/default/GnssMeasurementCorrections.h
new file mode 100644
index 0000000..4339bed
--- /dev/null
+++ b/gnss/2.1/default/GnssMeasurementCorrections.h
@@ -0,0 +1,49 @@
+/*
+ * 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 <android/hardware/gnss/measurement_corrections/1.0/IMeasurementCorrections.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace measurement_corrections {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+struct GnssMeasurementCorrections : public IMeasurementCorrections {
+    // Methods from V1_0::IMeasurementCorrections follow.
+    Return<bool> setCorrections(const MeasurementCorrections& corrections) override;
+    Return<bool> setCallback(const sp<V1_0::IMeasurementCorrectionsCallback>& callback) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace measurement_corrections
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/allocator/4.0/IAllocator.hal b/graphics/allocator/4.0/IAllocator.hal
index 9931685..7934867 100644
--- a/graphics/allocator/4.0/IAllocator.hal
+++ b/graphics/allocator/4.0/IAllocator.hal
@@ -20,14 +20,6 @@
 
 interface IAllocator {
     /**
-     * Retrieves implementation-defined debug information, which will be
-     * displayed during, for example, `dumpsys SurfaceFlinger`.
-     *
-     * @return debugInfo is a string of debug information.
-     */
-    dumpDebugInfo() generates (string debugInfo);
-
-    /**
      * Allocates buffers with the properties specified by the descriptor.
      *
      * Allocations should be optimized for usage bits provided in the
diff --git a/graphics/common/aidl/Android.bp b/graphics/common/aidl/Android.bp
index e0c7674..fcd4efc 100644
--- a/graphics/common/aidl/Android.bp
+++ b/graphics/common/aidl/Android.bp
@@ -10,6 +10,9 @@
         "android/hardware/graphics/common/*.aidl",
     ],
     stability: "vintf",
+    imports: [
+        "vintf-common"
+    ],
     backend: {
         java: {
             enabled: false,
diff --git a/graphics/common/aidl/android/hardware/graphics/common/BufferUsage.aidl b/graphics/common/aidl/android/hardware/graphics/common/BufferUsage.aidl
new file mode 100644
index 0000000..5f9888a
--- /dev/null
+++ b/graphics/common/aidl/android/hardware/graphics/common/BufferUsage.aidl
@@ -0,0 +1,114 @@
+/*
+ * 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.graphics.common;
+
+/**
+ * Buffer usage definitions.
+ */
+@VintfStability
+@Backing(type="long")
+enum BufferUsage {
+    /** bit 0-3 is an enum */
+    CPU_READ_MASK                      = 0xf,
+    /** buffer is never read by CPU */
+    CPU_READ_NEVER                     = 0,
+    /** buffer is rarely read by CPU */
+    CPU_READ_RARELY                    = 2,
+    /** buffer is often read by CPU */
+    CPU_READ_OFTEN                     = 3,
+
+    /** bit 4-7 is an enum */
+    CPU_WRITE_MASK                     = 0xf << 4,
+    /** buffer is never written by CPU */
+    CPU_WRITE_NEVER                    = 0 << 4,
+    /** buffer is rarely written by CPU */
+    CPU_WRITE_RARELY                   = 2 << 4,
+    /** buffer is often written by CPU */
+    CPU_WRITE_OFTEN                    = 3 << 4,
+
+    /** buffer is used as a GPU texture */
+    GPU_TEXTURE                        = 1 << 8,
+
+    /** buffer is used as a GPU render target */
+    GPU_RENDER_TARGET                  = 1 << 9,
+
+    /** bit 10 must be zero */
+
+    /** buffer is used as a composer HAL overlay layer */
+    COMPOSER_OVERLAY                   = 1 << 11,
+    /** buffer is used as a composer HAL client target */
+    COMPOSER_CLIENT_TARGET             = 1 << 12,
+
+    /** bit 13 must be zero */
+
+    /**
+     * Buffer is allocated with hardware-level protection against copying the
+     * contents (or information derived from the contents) into unprotected
+     * memory.
+     */
+    PROTECTED                          = 1 << 14,
+
+    /** buffer is used as a hwcomposer HAL cursor layer */
+    COMPOSER_CURSOR                    = 1 << 15,
+
+    /** buffer is used as a video encoder input */
+    VIDEO_ENCODER                      = 1 << 16,
+
+    /** buffer is used as a camera HAL output */
+    CAMERA_OUTPUT                      = 1 << 17,
+
+    /** buffer is used as a camera HAL input */
+    CAMERA_INPUT                       = 1 << 18,
+
+    /** bit 19 must be zero */
+
+    /** buffer is used as a renderscript allocation */
+    RENDERSCRIPT                       = 1 << 20,
+
+    /** bit 21 must be zero */
+
+    /** buffer is used as a video decoder output */
+    VIDEO_DECODER                      = 1 << 22,
+
+    /** buffer is used as a sensor direct report output */
+    SENSOR_DIRECT_DATA                 = 1 << 23,
+
+    /** buffer is used as a cube map texture */
+    GPU_CUBE_MAP                       = 1 << 25,
+
+    /** buffer contains a complete mipmap hierarchy */
+    GPU_MIPMAP_COMPLETE                = 1 << 26,
+
+    /**
+     * Buffer is used as input for HEIC encoder.
+     */
+    HW_IMAGE_ENCODER                   = 1 << 27,
+
+    /**
+     * buffer is used as as an OpenGL shader storage or uniform
+     * buffer object
+     */
+    GPU_DATA_BUFFER                    = 1 << 24,
+
+    /** bits 25-27 must be zero and are reserved for future versions */
+    /** bits 28-31 are reserved for vendor extensions */
+    VENDOR_MASK                        = 0xf << 28,
+
+    /** bits 32-47 must be zero and are reserved for future versions */
+    /** bits 48-63 are reserved for vendor extensions */
+    VENDOR_MASK_HI                     = 0xffff << 48,
+}
diff --git a/graphics/common/aidl/android/hardware/graphics/common/HardwareBuffer.aidl b/graphics/common/aidl/android/hardware/graphics/common/HardwareBuffer.aidl
new file mode 100644
index 0000000..5a22c0f
--- /dev/null
+++ b/graphics/common/aidl/android/hardware/graphics/common/HardwareBuffer.aidl
@@ -0,0 +1,32 @@
+/*
+ * 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.graphics.common;
+
+import android.hardware.common.NativeHandle;
+import android.hardware.graphics.common.HardwareBufferDescription;
+
+/**
+ * Stable AIDL counterpart of AHardwareBuffer.
+ *
+ * @note This is different from the public HardwareBuffer.
+ * @sa +ndk libnativewindow#AHardwareBuffer
+ */
+@VintfStability
+parcelable HardwareBuffer {
+    HardwareBufferDescription description;
+    NativeHandle handle;
+}
diff --git a/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl b/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl
new file mode 100644
index 0000000..e1e3492
--- /dev/null
+++ b/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl
@@ -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.
+ */
+
+package android.hardware.graphics.common;
+
+import android.hardware.graphics.common.BufferUsage;
+import android.hardware.graphics.common.PixelFormat;
+
+/**
+ * Stable AIDL counterpart of AHardwareBuffer_Desc.
+ *
+ * @sa +ndk libnativewindow#AHardwareBuffer_Desc
+ */
+@VintfStability
+parcelable HardwareBufferDescription {
+    int width;
+    int height;
+    int layers;
+    PixelFormat format;
+    BufferUsage usage;
+    int stride;
+}
diff --git a/graphics/common/aidl/android/hardware/graphics/common/PixelFormat.aidl b/graphics/common/aidl/android/hardware/graphics/common/PixelFormat.aidl
new file mode 100644
index 0000000..4942462
--- /dev/null
+++ b/graphics/common/aidl/android/hardware/graphics/common/PixelFormat.aidl
@@ -0,0 +1,516 @@
+/*
+ * 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.graphics.common;
+
+/**
+ * Pixel formats for graphics buffers.
+ */
+@VintfStability
+@Backing(type="int")
+enum PixelFormat {
+    /**
+     * This value may be used in an operation where the format is optional.
+     */
+    UNSPECIFIED                        = 0,
+    /**
+     * 32-bit format that has 8-bit R, G, B, and A components, in that order,
+     * from the lowest memory address to the highest memory address.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    RGBA_8888                          = 0x1,
+
+    /**
+     * 32-bit format that has 8-bit R, G, B, and unused components, in that
+     * order, from the lowest memory address to the highest memory address.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    RGBX_8888                          = 0x2,
+
+    /**
+     * 24-bit format that has 8-bit R, G, and B components, in that order,
+     * from the lowest memory address to the highest memory address.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    RGB_888                            = 0x3,
+
+    /**
+     * 16-bit packed format that has 5-bit R, 6-bit G, and 5-bit B components,
+     * in that order, from the most-sigfinicant bits to the least-significant
+     * bits.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    RGB_565                            = 0x4,
+
+    /**
+     * 32-bit format that has 8-bit B, G, R, and A components, in that order,
+     * from the lowest memory address to the highest memory address.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    BGRA_8888                          = 0x5,
+
+    /**
+     * Legacy formats deprecated in favor of YCBCR_420_888.
+     */
+    YCBCR_422_SP                       = 0x10,  // NV16
+    YCRCB_420_SP                       = 0x11,  // NV21
+    YCBCR_422_I                        = 0x14,  // YUY2
+
+    /**
+     * 64-bit format that has 16-bit R, G, B, and A components, in that order,
+     * from the lowest memory address to the highest memory address.
+     *
+     * The component values are signed floats, whose interpretation is defined
+     * by the dataspace.
+     */
+    RGBA_FP16                          = 0x16,
+
+    /**
+     * RAW16 is a single-channel, 16-bit, little endian format, typically
+     * representing raw Bayer-pattern images from an image sensor, with minimal
+     * processing.
+     *
+     * The exact pixel layout of the data in the buffer is sensor-dependent, and
+     * needs to be queried from the camera device.
+     *
+     * Generally, not all 16 bits are used; more common values are 10 or 12
+     * bits. If not all bits are used, the lower-order bits are filled first.
+     * All parameters to interpret the raw data (black and white points,
+     * color space, etc) must be queried from the camera device.
+     *
+     * This format assumes
+     * - an even width
+     * - an even height
+     * - a horizontal stride multiple of 16 pixels
+     * - a vertical stride equal to the height
+     * - strides are specified in pixels, not in bytes
+     *
+     *   size = stride * height * 2
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::RENDERSCRIPT
+     *
+     * The mapping of the dataspace to buffer contents for RAW16 is as
+     * follows:
+     *
+     *  Dataspace value               | Buffer contents
+     * -------------------------------+-----------------------------------------
+     *  Dataspace::ARBITRARY          | Raw image sensor data, layout is as
+     *                                | defined above.
+     *  Dataspace::DEPTH              | Unprocessed implementation-dependent raw
+     *                                | depth measurements, opaque with 16 bit
+     *                                | samples.
+     *  Other                         | Unsupported
+     */
+    RAW16                              = 0x20,
+
+    /**
+     * BLOB is used to carry task-specific data which does not have a standard
+     * image structure. The details of the format are left to the two
+     * endpoints.
+     *
+     * A typical use case is for transporting JPEG-compressed images from the
+     * Camera HAL to the framework or to applications.
+     *
+     * Buffers of this format must have a height of 1, and width equal to their
+     * size in bytes.
+     *
+     * The mapping of the dataspace to buffer contents for BLOB is as
+     * follows:
+     *
+     *  Dataspace value               | Buffer contents
+     * -------------------------------+-----------------------------------------
+     *  Dataspace::JFIF               | An encoded JPEG image
+     *  Dataspace::DEPTH              | An android_depth_points buffer
+     *  Dataspace::SENSOR             | Sensor event data.
+     *  Other                         | Unsupported
+     */
+    BLOB                               = 0x21,
+
+    /**
+     * A format indicating that the choice of format is entirely up to the
+     * allocator.
+     *
+     * The allocator should examine the usage bits passed in when allocating a
+     * buffer with this format, and it should derive the pixel format from
+     * those usage flags. This format must never be used with any of the
+     * BufferUsage::CPU_* usage flags.
+     *
+     * Even when the internally chosen format has an alpha component, the
+     * clients must assume the alpha vlaue to be 1.0.
+     *
+     * The interpretation of the component values is defined by the dataspace.
+     */
+    IMPLEMENTATION_DEFINED             = 0x22,
+
+    /**
+     * This format allows platforms to use an efficient YCbCr/YCrCb 4:2:0
+     * buffer layout, while still describing the general format in a
+     * layout-independent manner. While called YCbCr, it can be used to
+     * describe formats with either chromatic ordering, as well as
+     * whole planar or semiplanar layouts.
+     *
+     * This format must be accepted by the allocator when BufferUsage::CPU_*
+     * are set.
+     *
+     * Buffers with this format must be locked with IMapper::lockYCbCr.
+     * Locking with IMapper::lock must return an error.
+     *
+     * The interpretation of the component values is defined by the dataspace.
+     */
+    YCBCR_420_888                      = 0x23,
+
+    /**
+     * RAW_OPAQUE is a format for unprocessed raw image buffers coming from an
+     * image sensor. The actual structure of buffers of this format is
+     * implementation-dependent.
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::RENDERSCRIPT
+     *
+     * The mapping of the dataspace to buffer contents for RAW_OPAQUE is as
+     * follows:
+     *
+     *  Dataspace value               | Buffer contents
+     * -------------------------------+-----------------------------------------
+     *  Dataspace::ARBITRARY          | Raw image sensor data.
+     *  Other                         | Unsupported
+     */
+    RAW_OPAQUE                         = 0x24,
+
+    /**
+     * RAW10 is a single-channel, 10-bit per pixel, densely packed in each row,
+     * unprocessed format, usually representing raw Bayer-pattern images coming from
+     * an image sensor.
+     *
+     * In an image buffer with this format, starting from the first pixel of each
+     * row, each 4 consecutive pixels are packed into 5 bytes (40 bits). Each one
+     * of the first 4 bytes contains the top 8 bits of each pixel, The fifth byte
+     * contains the 2 least significant bits of the 4 pixels, the exact layout data
+     * for each 4 consecutive pixels is illustrated below (Pi[j] stands for the jth
+     * bit of the ith pixel):
+     *
+     *          bit 7                                     bit 0
+     *          =====|=====|=====|=====|=====|=====|=====|=====|
+     * Byte 0: |P0[9]|P0[8]|P0[7]|P0[6]|P0[5]|P0[4]|P0[3]|P0[2]|
+     *         |-----|-----|-----|-----|-----|-----|-----|-----|
+     * Byte 1: |P1[9]|P1[8]|P1[7]|P1[6]|P1[5]|P1[4]|P1[3]|P1[2]|
+     *         |-----|-----|-----|-----|-----|-----|-----|-----|
+     * Byte 2: |P2[9]|P2[8]|P2[7]|P2[6]|P2[5]|P2[4]|P2[3]|P2[2]|
+     *         |-----|-----|-----|-----|-----|-----|-----|-----|
+     * Byte 3: |P3[9]|P3[8]|P3[7]|P3[6]|P3[5]|P3[4]|P3[3]|P3[2]|
+     *         |-----|-----|-----|-----|-----|-----|-----|-----|
+     * Byte 4: |P3[1]|P3[0]|P2[1]|P2[0]|P1[1]|P1[0]|P0[1]|P0[0]|
+     *          ===============================================
+     *
+     * This format assumes
+     * - a width multiple of 4 pixels
+     * - an even height
+     * - a vertical stride equal to the height
+     * - strides are specified in bytes, not in pixels
+     *
+     *   size = stride * height
+     *
+     * When stride is equal to width * (10 / 8), there will be no padding bytes at
+     * the end of each row, the entire image data is densely packed. When stride is
+     * larger than width * (10 / 8), padding bytes will be present at the end of each
+     * row (including the last row).
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::RENDERSCRIPT
+     *
+     * The mapping of the dataspace to buffer contents for RAW10 is as
+     * follows:
+     *
+     *  Dataspace value               | Buffer contents
+     * -------------------------------+-----------------------------------------
+     *  Dataspace::ARBITRARY          | Raw image sensor data.
+     *  Other                         | Unsupported
+     */
+    RAW10                              = 0x25,
+
+    /**
+     * RAW12 is a single-channel, 12-bit per pixel, densely packed in each row,
+     * unprocessed format, usually representing raw Bayer-pattern images coming from
+     * an image sensor.
+     *
+     * In an image buffer with this format, starting from the first pixel of each
+     * row, each two consecutive pixels are packed into 3 bytes (24 bits). The first
+     * and second byte contains the top 8 bits of first and second pixel. The third
+     * byte contains the 4 least significant bits of the two pixels, the exact layout
+     * data for each two consecutive pixels is illustrated below (Pi[j] stands for
+     * the jth bit of the ith pixel):
+     *
+     *           bit 7                                            bit 0
+     *          ======|======|======|======|======|======|======|======|
+     * Byte 0: |P0[11]|P0[10]|P0[ 9]|P0[ 8]|P0[ 7]|P0[ 6]|P0[ 5]|P0[ 4]|
+     *         |------|------|------|------|------|------|------|------|
+     * Byte 1: |P1[11]|P1[10]|P1[ 9]|P1[ 8]|P1[ 7]|P1[ 6]|P1[ 5]|P1[ 4]|
+     *         |------|------|------|------|------|------|------|------|
+     * Byte 2: |P1[ 3]|P1[ 2]|P1[ 1]|P1[ 0]|P0[ 3]|P0[ 2]|P0[ 1]|P0[ 0]|
+     *          =======================================================
+     *
+     * This format assumes:
+     * - a width multiple of 4 pixels
+     * - an even height
+     * - a vertical stride equal to the height
+     * - strides are specified in bytes, not in pixels
+     *
+     *   size = stride * height
+     *
+     * When stride is equal to width * (12 / 8), there will be no padding bytes at
+     * the end of each row, the entire image data is densely packed. When stride is
+     * larger than width * (12 / 8), padding bytes will be present at the end of
+     * each row (including the last row).
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::RENDERSCRIPT
+     *
+     * The mapping of the dataspace to buffer contents for RAW12 is as
+     * follows:
+     *
+     *  Dataspace value               | Buffer contents
+     * -------------------------------+-----------------------------------------
+     *  Dataspace::ARBITRARY          | Raw image sensor data.
+     *  Other                         | Unsupported
+     */
+    RAW12                              = 0x26,
+
+    /** 0x27 to 0x2A are reserved for flexible formats */
+
+    /**
+     * 32-bit packed format that has 2-bit A, 10-bit B, G, and R components,
+     * in that order, from the most-sigfinicant bits to the least-significant
+     * bits.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    RGBA_1010102                       = 0x2B,
+
+    /**
+     * 0x100 - 0x1FF
+     *
+     * This range is reserved for vendor extensions. Formats in this range
+     * must support BufferUsage::GPU_TEXTURE. Clients must assume they do not
+     * have an alpha component.
+     */
+
+    /**
+     * Y8 is a YUV planar format comprised of a WxH Y plane, with each pixel
+     * being represented by 8 bits. It is equivalent to just the Y plane from
+     * YV12.
+     *
+     * This format assumes
+     * - an even width
+     * - an even height
+     * - a horizontal stride multiple of 16 pixels
+     * - a vertical stride equal to the height
+     *
+     *   size = stride * height
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    Y8                                 = 0x20203859,
+
+    /**
+     * Y16 is a YUV planar format comprised of a WxH Y plane, with each pixel
+     * being represented by 16 bits. It is just like Y8, but has double the
+     * bits per pixel (little endian).
+     *
+     * This format assumes
+     * - an even width
+     * - an even height
+     * - a horizontal stride multiple of 16 pixels
+     * - a vertical stride equal to the height
+     * - strides are specified in pixels, not in bytes
+     *
+     *   size = stride * height * 2
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace. When the dataspace is
+     * Dataspace::DEPTH, each pixel is a distance value measured by a depth
+     * camera, plus an associated confidence value.
+     */
+    Y16                                = 0x20363159,
+
+    /**
+     * YV12 is a 4:2:0 YCrCb planar format comprised of a WxH Y plane followed
+     * by (W/2) x (H/2) Cr and Cb planes.
+     *
+     * This format assumes
+     * - an even width
+     * - an even height
+     * - a horizontal stride multiple of 16 pixels
+     * - a vertical stride equal to the height
+     *
+     *   y_size = stride * height
+     *   c_stride = ALIGN(stride/2, 16)
+     *   c_size = c_stride * height/2
+     *   size = y_size + c_size * 2
+     *   cr_offset = y_size
+     *   cb_offset = y_size + c_size
+     *
+     * This range is reserved for vendor extensions. Formats in this range
+     * must support BufferUsage::GPU_TEXTURE. Clients must assume they do not
+     * have an alpha component.
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::CAMERA_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::GPU_TEXTURE
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    YV12                               = 0x32315659, // YCrCb 4:2:0 Planar
+
+    /**
+     * 16-bit format that has a single 16-bit depth component.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    DEPTH_16                           = 0x30,
+
+    /**
+     * 32-bit format that has a single 24-bit depth component and, optionally,
+     * 8 bits that are unused.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     */
+    DEPTH_24                           = 0x31,
+
+    /**
+     * 32-bit format that has a 24-bit depth component and an 8-bit stencil
+     * component packed into 32-bits.
+     *
+     * The depth component values are unsigned normalized to the range [0, 1],
+     * whose interpretation is defined by the dataspace. The stencil values are
+     * unsigned integers, whose interpretation is defined by the dataspace.
+     */
+    DEPTH_24_STENCIL_8                 = 0x32,
+
+    /**
+     * 32-bit format that has a single 32-bit depth component.
+     *
+     * The component values are signed floats, whose interpretation is defined
+     * by the dataspace.
+     */
+    DEPTH_32F                          = 0x33,
+
+    /**
+     * Two-component format that has a 32-bit depth component, an 8-bit stencil
+     * component, and optionally 24-bits unused.
+     *
+     * The depth component values are signed floats, whose interpretation is
+     * defined by the dataspace. The stencil bits are unsigned integers, whose
+     * interpretation is defined by the dataspace.
+     */
+    DEPTH_32F_STENCIL_8                = 0x34,
+
+    /**
+     * 8-bit format that has a single 8-bit stencil component.
+     *
+     * The component values are unsigned integers, whose interpretation is
+     * defined by the dataspace.
+     */
+    STENCIL_8                          = 0x35,
+
+    /**
+     * P010 is a 4:2:0 YCbCr semiplanar format comprised of a WxH Y plane
+     * followed immediately by a Wx(H/2) CbCr plane. Each sample is
+     * represented by a 16-bit little-endian value, with the lower 6 bits set
+     * to zero.
+     *
+     * This format assumes
+     * - an even height
+     * - a vertical stride equal to the height
+     *
+     *   stride_in_bytes = stride * 2
+     *   y_size = stride_in_bytes * height
+     *   cbcr_size = stride_in_bytes * (height / 2)
+     *   cb_offset = y_size
+     *   cr_offset = cb_offset + 2
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::VIDEO_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::GPU_TEXTURE
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     *
+     * This format is appropriate for 10bit video content.
+     *
+     * Buffers with this format must be locked with IMapper::lockYCbCr
+     * or with IMapper::lock.
+     */
+    YCBCR_P010                         = 0x36,
+
+    /**
+     * 24-bit format that has 8-bit H, S, and V components, in that order,
+     * from the lowest memory address to the highest memory address.
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+    */
+    HSV_888                            = 0x37,
+}
diff --git a/graphics/mapper/4.0/utils/vts/MapperVts.cpp b/graphics/mapper/4.0/utils/vts/MapperVts.cpp
index 8a5f54e..cb90fa0 100644
--- a/graphics/mapper/4.0/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/4.0/utils/vts/MapperVts.cpp
@@ -71,13 +71,6 @@
     return mAllocator;
 }
 
-std::string Gralloc::dumpDebugInfo() {
-    std::string debugInfo;
-    mAllocator->dumpDebugInfo([&](const auto& tmpDebugInfo) { debugInfo = tmpDebugInfo.c_str(); });
-
-    return debugInfo;
-}
-
 const native_handle_t* Gralloc::cloneBuffer(const hidl_handle& rawHandle) {
     const native_handle_t* bufferHandle = native_handle_clone(rawHandle.getNativeHandle());
     EXPECT_NE(nullptr, bufferHandle);
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 1c635c4..cd40aa4 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
@@ -45,8 +45,6 @@
 
     sp<IAllocator> getAllocator() const;
 
-    std::string dumpDebugInfo();
-
     // When import is false, this simply calls IAllocator::allocate. When import
     // is true, the returned buffers are also imported into the mapper.
     //
diff --git a/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp b/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
index 3285fd6..c4b1c53 100644
--- a/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
+++ b/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
@@ -306,13 +306,6 @@
 };
 
 /**
- * Test IAllocator::dumpDebugInfo by calling it.
- */
-TEST_P(GraphicsMapperHidlTest, AllocatorDumpDebugInfo) {
-    mGralloc->dumpDebugInfo();
-}
-
-/**
  * Test IAllocator::allocate with valid buffer descriptors.
  */
 TEST_P(GraphicsMapperHidlTest, AllocatorAllocate) {
diff --git a/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp b/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
index f47b10d..0e2b3e1 100644
--- a/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
+++ b/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
@@ -34,18 +34,10 @@
 using android::hardware::vibrator::EffectStrength;
 using android::hardware::vibrator::IVibrator;
 
-// TODO(b/143992652): autogenerate
-const std::vector<Effect> kEffects = {
-        Effect::CLICK,       Effect::DOUBLE_CLICK, Effect::TICK,        Effect::THUD,
-        Effect::POP,         Effect::HEAVY_CLICK,  Effect::RINGTONE_1,  Effect::RINGTONE_2,
-        Effect::RINGTONE_3,  Effect::RINGTONE_4,   Effect::RINGTONE_5,  Effect::RINGTONE_6,
-        Effect::RINGTONE_7,  Effect::RINGTONE_8,   Effect::RINGTONE_9,  Effect::RINGTONE_10,
-        Effect::RINGTONE_11, Effect::RINGTONE_12,  Effect::RINGTONE_13, Effect::RINGTONE_14,
-        Effect::RINGTONE_15, Effect::TEXTURE_TICK};
-
-// TODO(b/143992652): autogenerate
-const std::vector<EffectStrength> kEffectStrengths = {EffectStrength::LIGHT, EffectStrength::MEDIUM,
-                                                      EffectStrength::STRONG};
+const std::vector<Effect> kEffects{android::enum_range<Effect>().begin(),
+                                   android::enum_range<Effect>().end()};
+const std::vector<EffectStrength> kEffectStrengths{android::enum_range<EffectStrength>().begin(),
+                                                   android::enum_range<EffectStrength>().end()};
 
 const std::vector<Effect> kInvalidEffects = {
         static_cast<Effect>(static_cast<int32_t>(kEffects.front()) - 1),