diff --git a/audio/7.0/Android.bp b/audio/7.0/Android.bp
new file mode 100644
index 0000000..d07ce12
--- /dev/null
+++ b/audio/7.0/Android.bp
@@ -0,0 +1,25 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.audio@7.0",
+    root: "android.hardware",
+    srcs: [
+        "types.hal",
+        "IDevice.hal",
+        "IDevicesFactory.hal",
+        "IPrimaryDevice.hal",
+        "IStream.hal",
+        "IStreamIn.hal",
+        "IStreamOut.hal",
+        "IStreamOutCallback.hal",
+        "IStreamOutEventCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.effect@7.0",
+        "android.hidl.base@1.0",
+        "android.hidl.safe_union@1.0",
+    ],
+    gen_java: false,
+    gen_java_constants: true,
+}
diff --git a/audio/7.0/IDevice.hal b/audio/7.0/IDevice.hal
new file mode 100644
index 0000000..eecd92e
--- /dev/null
+++ b/audio/7.0/IDevice.hal
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+import IStreamIn;
+import IStreamOut;
+
+interface IDevice {
+    /**
+     * Returns whether the audio hardware interface has been initialized.
+     *
+     * @return retval OK on success, NOT_INITIALIZED on failure.
+     */
+    initCheck() generates (Result retval);
+
+    /**
+     * Sets the audio volume for all audio activities other than voice call. If
+     * NOT_SUPPORTED is returned, the software mixer will emulate this
+     * capability.
+     *
+     * @param volume 1.0f means unity, 0.0f is zero.
+     * @return retval operation completion status.
+     */
+    setMasterVolume(float volume) generates (Result retval);
+
+    /**
+     * Get the current master volume value for the HAL, if the HAL supports
+     * master volume control. For example, AudioFlinger will query this value
+     * from the primary audio HAL when the service starts and use the value for
+     * setting the initial master volume across all HALs. HALs which do not
+     * support this method must return NOT_SUPPORTED in 'retval'.
+     *
+     * @return retval operation completion status.
+     * @return volume 1.0f means unity, 0.0f is zero.
+     */
+    getMasterVolume() generates (Result retval, float volume);
+
+    /**
+     * Sets microphone muting state.
+     *
+     * @param mute whether microphone is muted.
+     * @return retval operation completion status.
+     */
+    setMicMute(bool mute) generates (Result retval);
+
+    /**
+     * Gets whether microphone is muted.
+     *
+     * @return retval operation completion status.
+     * @return mute whether microphone is muted.
+     */
+    getMicMute() generates (Result retval, bool mute);
+
+    /**
+     * Set the audio mute status for all audio activities. If the return value
+     * is NOT_SUPPORTED, the software mixer will emulate this capability.
+     *
+     * @param mute whether audio is muted.
+     * @return retval operation completion status.
+     */
+    setMasterMute(bool mute) generates (Result retval);
+
+    /**
+     * Get the current master mute status for the HAL, if the HAL supports
+     * master mute control. AudioFlinger will query this value from the primary
+     * audio HAL when the service starts and use the value for setting the
+     * initial master mute across all HALs. HAL must indicate that the feature
+     * is not supported by returning NOT_SUPPORTED status.
+     *
+     * @return retval operation completion status.
+     * @return mute whether audio is muted.
+     */
+    getMasterMute() generates (Result retval, bool mute);
+
+    /**
+     * Returns audio input buffer size according to parameters passed or
+     * INVALID_ARGUMENTS if one of the parameters is not supported.
+     *
+     * @param config audio configuration.
+     * @return retval operation completion status.
+     * @return bufferSize input buffer size in bytes.
+     */
+    getInputBufferSize(AudioConfig config)
+            generates (Result retval, uint64_t bufferSize);
+
+    /**
+     * This method creates and opens the audio hardware output stream.
+     * If the stream can not be opened with the proposed audio config,
+     * HAL must provide suggested values for the audio config.
+     *
+     * @param ioHandle handle assigned by AudioFlinger.
+     * @param device device type and (if needed) address.
+     * @param config stream configuration.
+     * @param flags additional flags.
+     * @param sourceMetadata Description of the audio that will be played.
+                             May be used by implementations to configure hardware effects.
+     * @return retval operation completion status.
+     * @return outStream created output stream.
+     * @return suggestedConfig in case of invalid parameters, suggested config.
+     */
+    openOutputStream(
+            AudioIoHandle ioHandle,
+            DeviceAddress device,
+            AudioConfig config,
+            bitfield<AudioOutputFlag> flags,
+            SourceMetadata sourceMetadata) generates (
+                    Result retval,
+                    IStreamOut outStream,
+                    AudioConfig suggestedConfig);
+
+    /**
+     * This method creates and opens the audio hardware input stream.
+     * If the stream can not be opened with the proposed audio config,
+     * HAL must provide suggested values for the audio config.
+     *
+     * @param ioHandle handle assigned by AudioFlinger.
+     * @param device device type and (if needed) address.
+     * @param config stream configuration.
+     * @param flags additional flags.
+     * @param sinkMetadata Description of the audio that is suggested by the client.
+     *                     May be used by implementations to configure processing effects.
+     * @return retval operation completion status.
+     * @return inStream in case of success, created input stream.
+     * @return suggestedConfig in case of invalid parameters, suggested config.
+     */
+    openInputStream(
+            AudioIoHandle ioHandle,
+            DeviceAddress device,
+            AudioConfig config,
+            bitfield<AudioInputFlag> flags,
+            SinkMetadata sinkMetadata) generates (
+                    Result retval,
+                    IStreamIn inStream,
+                    AudioConfig suggestedConfig);
+
+    /**
+     * Returns whether HAL supports audio patches. Patch represents a connection
+     * between signal source(s) and signal sink(s). If HAL doesn't support
+     * patches natively (in hardware) then audio system will need to establish
+     * them in software.
+     *
+     * @return supports true if audio patches are supported.
+     */
+    supportsAudioPatches() generates (bool supports);
+
+    /**
+     * Creates an audio patch between several source and sink ports.  The handle
+     * is allocated by the HAL and must be unique for this audio HAL module.
+     *
+     * @param sources patch sources.
+     * @param sinks patch sinks.
+     * @return retval operation completion status.
+     * @return patch created patch handle.
+     */
+    createAudioPatch(vec<AudioPortConfig> sources, vec<AudioPortConfig> sinks)
+            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.
+     * @return retval operation completion status.
+     */
+    releaseAudioPatch(AudioPatchHandle patch) generates (Result retval);
+
+    /**
+     * Returns the list of supported attributes for a given audio port.
+     *
+     * As input, 'port' contains the information (type, role, address etc...)
+     * needed by the HAL to identify the port.
+     *
+     * As output, 'resultPort' contains possible attributes (sampling rates,
+     * formats, channel masks, gain controllers...) for this port.
+     *
+     * @param port port identifier.
+     * @return retval operation completion status.
+     * @return resultPort port descriptor with all parameters filled up.
+     */
+    getAudioPort(AudioPort port)
+            generates (Result retval, AudioPort resultPort);
+
+    /**
+     * Set audio port configuration.
+     *
+     * @param config audio port configuration.
+     * @return retval operation completion status.
+     */
+    setAudioPortConfig(AudioPortConfig config) generates (Result retval);
+
+    /**
+     * Gets the HW synchronization source of the device. Calling this method is
+     * equivalent to getting AUDIO_PARAMETER_HW_AV_SYNC on the legacy HAL.
+     * Optional method
+     *
+     * @return retval operation completion status: OK or NOT_SUPPORTED.
+     * @return hwAvSync HW synchronization source
+     */
+    getHwAvSync() generates (Result retval, AudioHwSync hwAvSync);
+
+    /**
+     * Sets whether the screen is on. Calling this method is equivalent to
+     * setting AUDIO_PARAMETER_KEY_SCREEN_STATE on the legacy HAL.
+     * Optional method
+     *
+     * @param turnedOn whether the screen is turned on.
+     * @return retval operation completion status.
+     */
+    setScreenState(bool turnedOn) generates (Result retval);
+
+    /**
+     * Generic method for retrieving vendor-specific parameter values.
+     * The framework does not interpret the parameters, they are passed
+     * in an opaque manner between a vendor application and HAL.
+     *
+     * Multiple parameters can be retrieved at the same time.
+     * The implementation should return as many requested parameters
+     * as possible, even if one or more is not supported
+     *
+     * @param context provides more information about the request
+     * @param keys keys of the requested parameters
+     * @return retval operation completion status.
+     *         OK must be returned if keys is empty.
+     *         NOT_SUPPORTED must be returned if at least one key is unknown.
+     * @return parameters parameter key value pairs.
+     *         Must contain the value of all requested keys if retval == OK
+     */
+    getParameters(vec<ParameterValue> context, vec<string> keys)
+            generates (Result retval, vec<ParameterValue> parameters);
+
+    /**
+     * Generic method for setting vendor-specific parameter values.
+     * The framework does not interpret the parameters, they are passed
+     * in an opaque manner between a vendor application and HAL.
+     *
+     * Multiple parameters can be set at the same time though this is
+     * discouraged as it make failure analysis harder.
+     *
+     * If possible, a failed setParameters should not impact the platform state.
+     *
+     * @param context provides more information about the request
+     * @param parameters parameter key value pairs.
+     * @return retval operation completion status.
+     *         All parameters must be successfully set for OK to be returned
+     */
+    setParameters(vec<ParameterValue> context, vec<ParameterValue> parameters)
+            generates (Result retval);
+
+    /**
+     * Returns an array with available microphones in device.
+     *
+     * @return retval NOT_SUPPORTED if there are no microphones on this device
+     *                INVALID_STATE if the call is not successful,
+     *                OK otherwise.
+     *
+     * @return microphones array with microphones info
+     */
+    getMicrophones()
+         generates(Result retval, vec<MicrophoneInfo> microphones);
+
+    /**
+     * Notifies the device module about the connection state of an input/output
+     * device attached to it. Calling this method is equivalent to setting
+     * AUDIO_PARAMETER_DEVICE_[DIS]CONNECT on the legacy HAL.
+     *
+     * @param address audio device specification.
+     * @param connected whether the device is connected.
+     * @return retval operation completion status.
+     */
+    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.
+     *
+     * Note that all streams must be closed by the client before
+     * attempting to close the device they belong to.
+     *
+     * @return retval OK in case the success.
+     *                INVALID_STATE if the device was already closed
+     *                or there are streams currently opened.
+     */
+    close() generates (Result retval);
+
+    /**
+     * Applies an audio effect to an audio device. The effect is inserted
+     * according to its insertion preference specified by INSERT_... EffectFlags
+     * in the EffectDescriptor.
+     *
+     * @param device identifies the sink or source device this effect must be applied to.
+     *               "device" is the AudioPortHandle indicated for the device when the audio
+     *                patch connecting that device was created.
+     * @param effectId effect ID (obtained from IEffectsFactory.createEffect) of
+     *                 the effect to add.
+     * @return retval operation completion status.
+     */
+    addDeviceEffect(AudioPortHandle device, uint64_t effectId) generates (Result retval);
+
+    /**
+     * Stops applying an audio effect to an audio device.
+     *
+     * @param device identifies the sink or source device this effect was applied to.
+     *               "device" is the AudioPortHandle indicated for the device when the audio
+     *               patch is created at the audio HAL.
+     * @param effectId effect ID (obtained from IEffectsFactory.createEffect) of
+     *                 the effect.
+     * @return retval operation completion status.
+     */
+    removeDeviceEffect(AudioPortHandle device, uint64_t effectId) generates (Result retval);
+};
diff --git a/audio/7.0/IDevicesFactory.hal b/audio/7.0/IDevicesFactory.hal
new file mode 100644
index 0000000..03549b4
--- /dev/null
+++ b/audio/7.0/IDevicesFactory.hal
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+import IDevice;
+import IPrimaryDevice;
+
+/** This factory allows a HAL implementation to be split in multiple independent
+ *  devices (called module in the pre-treble API).
+ *  Note that this division is arbitrary and implementation are free
+ *  to only have a Primary.
+ *  The framework will query the devices according to audio_policy_configuration.xml
+ *
+ *  Each device name is arbitrary, provided by the vendor's audio_policy_configuration.xml
+ *  and only used to identify a device in this factory.
+ *  The framework must not interpret the name, treating it as a vendor opaque data
+ *  with the following exception:
+ *  - the "r_submix" device that must be present to support policyMixes (Eg: Android projected).
+ *    Note that this Device is included by default in a build derived from AOSP.
+ *
+ *  Note that on AOSP Oreo (including MR1) the "a2dp" module is not using this API
+ *  but is loaded directly from the system partition using the legacy API
+ *  due to limitations with the Bluetooth framework.
+ */
+interface IDevicesFactory {
+
+    /**
+     * Opens an audio device. To close the device, it is necessary to release
+     * references to the returned device object.
+     *
+     * @param device device name.
+     * @return retval operation completion status. Returns INVALID_ARGUMENTS
+     *         if there is no corresponding hardware module found,
+     *         NOT_INITIALIZED if an error occurred while opening the hardware
+     *         module.
+     * @return result the interface for the created device.
+     */
+    openDevice(string device) generates (Result retval, IDevice result);
+
+    /**
+     * Opens the Primary audio device that must be present.
+     * This function is not optional and must return successfully the primary device.
+     *
+     * This device must have the name "primary".
+     *
+     * The telephony stack uses this device to control the audio during a voice call.
+     *
+     * @return retval operation completion status. Must be SUCCESS.
+     *         For debugging, return INVALID_ARGUMENTS if there is no corresponding
+     *         hardware module found, NOT_INITIALIZED if an error occurred
+     *         while opening the hardware module.
+     * @return result the interface for the created device.
+     */
+    openPrimaryDevice() generates (Result retval, IPrimaryDevice result);
+};
diff --git a/audio/7.0/IPrimaryDevice.hal b/audio/7.0/IPrimaryDevice.hal
new file mode 100644
index 0000000..1427ae8
--- /dev/null
+++ b/audio/7.0/IPrimaryDevice.hal
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+import IDevice;
+
+interface IPrimaryDevice extends IDevice {
+    /**
+     * Sets the audio volume of a voice call.
+     *
+     * @param volume 1.0f means unity, 0.0f is zero.
+     * @return retval operation completion status.
+     */
+    setVoiceVolume(float volume) generates (Result retval);
+
+    /**
+     * This method is used to notify the HAL about audio mode changes.
+     *
+     * @param mode new mode.
+     * @return retval operation completion status.
+     */
+    setMode(AudioMode mode) generates (Result retval);
+
+    /**
+     * Sets the name of the current BT SCO headset. Calling this method
+     * is equivalent to setting legacy "bt_headset_name" parameter.
+     * The BT SCO headset name must only be used for debugging purposes.
+     * Optional method
+     *
+     * @param name the name of the current BT SCO headset (can be empty).
+     * @return retval operation completion status.
+     */
+    setBtScoHeadsetDebugName(string name) generates (Result retval);
+
+    /**
+     * Gets whether BT SCO Noise Reduction and Echo Cancellation are enabled.
+     * Calling this method is equivalent to getting AUDIO_PARAMETER_KEY_BT_NREC
+     * on the legacy HAL.
+     *
+     * @return retval operation completion status.
+     * @return enabled whether BT SCO NR + EC are enabled.
+     */
+    getBtScoNrecEnabled() generates (Result retval, bool enabled);
+
+    /**
+     * Sets whether BT SCO Noise Reduction and Echo Cancellation are enabled.
+     * Calling this method is equivalent to setting AUDIO_PARAMETER_KEY_BT_NREC
+     * on the legacy HAL.
+     * Optional method
+     *
+     * @param enabled whether BT SCO NR + EC are enabled.
+     * @return retval operation completion status.
+     */
+    setBtScoNrecEnabled(bool enabled) generates (Result retval);
+
+    /**
+     * Gets whether BT SCO Wideband mode is enabled. Calling this method is
+     * equivalent to getting AUDIO_PARAMETER_KEY_BT_SCO_WB on the legacy HAL.
+     *
+     * @return retval operation completion status.
+     * @return enabled whether BT Wideband is enabled.
+     */
+    getBtScoWidebandEnabled() generates (Result retval, bool enabled);
+
+    /**
+     * Sets whether BT SCO Wideband mode is enabled. Calling this method is
+     * equivalent to setting AUDIO_PARAMETER_KEY_BT_SCO_WB on the legacy HAL.
+     * Optional method
+     *
+     * @param enabled whether BT Wideband is enabled.
+     * @return retval operation completion status.
+     */
+    setBtScoWidebandEnabled(bool enabled) generates (Result retval);
+
+    /**
+     * Gets whether BT HFP (Hands-Free Profile) is enabled. Calling this method
+     * is equivalent to getting "hfp_enable" parameter value on the legacy HAL.
+     *
+     * @return retval operation completion status.
+     * @return enabled whether BT HFP is enabled.
+     */
+    getBtHfpEnabled() generates (Result retval, bool enabled);
+
+    /**
+     * Sets whether BT HFP (Hands-Free Profile) is enabled. Calling this method
+     * is equivalent to setting "hfp_enable" parameter on the legacy HAL.
+     * Optional method
+     *
+     * @param enabled whether BT HFP is enabled.
+     * @return retval operation completion status.
+     */
+    setBtHfpEnabled(bool enabled) generates (Result retval);
+
+    /**
+     * Sets the sampling rate of BT HFP (Hands-Free Profile). Calling this
+     * method is equivalent to setting "hfp_set_sampling_rate" parameter
+     * on the legacy HAL.
+     * Optional method
+     *
+     * @param sampleRateHz sample rate in Hz.
+     * @return retval operation completion status.
+     */
+    setBtHfpSampleRate(uint32_t sampleRateHz) generates (Result retval);
+
+    /**
+     * Sets the current output volume Hz for BT HFP (Hands-Free Profile).
+     * Calling this method is equivalent to setting "hfp_volume" parameter value
+     * on the legacy HAL (except that legacy HAL implementations expect
+     * an integer value in the range from 0 to 15.)
+     * Optional method
+     *
+     * @param volume 1.0f means unity, 0.0f is zero.
+     * @return retval operation completion status.
+     */
+    setBtHfpVolume(float volume) generates (Result retval);
+
+    enum TtyMode : int32_t {
+        OFF,
+        VCO,
+        HCO,
+        FULL
+    };
+
+    /**
+     * Gets current TTY mode selection. Calling this method is equivalent to
+     * getting AUDIO_PARAMETER_KEY_TTY_MODE on the legacy HAL.
+     *
+     * @return retval operation completion status.
+     * @return mode TTY mode.
+     */
+    getTtyMode() generates (Result retval, TtyMode mode);
+
+    /**
+     * Sets current TTY mode. Calling this method is equivalent to setting
+     * AUDIO_PARAMETER_KEY_TTY_MODE on the legacy HAL.
+     *
+     * @param mode TTY mode.
+     * @return retval operation completion status.
+     */
+    setTtyMode(TtyMode mode) generates (Result retval);
+
+    /**
+     * Gets whether Hearing Aid Compatibility - Telecoil (HAC-T) mode is
+     * enabled. Calling this method is equivalent to getting
+     * AUDIO_PARAMETER_KEY_HAC on the legacy HAL.
+     *
+     * @return retval operation completion status.
+     * @return enabled whether HAC mode is enabled.
+     */
+    getHacEnabled() generates (Result retval, bool enabled);
+
+    /**
+     * Sets whether Hearing Aid Compatibility - Telecoil (HAC-T) mode is
+     * enabled. Calling this method is equivalent to setting
+     * AUDIO_PARAMETER_KEY_HAC on the legacy HAL.
+     * Optional method
+     *
+     * @param enabled whether HAC mode is enabled.
+     * @return retval operation completion status.
+     */
+    setHacEnabled(bool enabled) generates (Result retval);
+
+    enum Rotation : int32_t {
+        DEG_0,
+        DEG_90,
+        DEG_180,
+        DEG_270
+    };
+
+    /**
+     * Updates HAL on the current rotation of the device relative to natural
+     * orientation. Calling this method is equivalent to setting legacy
+     * parameter "rotation".
+     *
+     * @param rotation rotation in degrees relative to natural device
+     *     orientation.
+     * @return retval operation completion status.
+     */
+    updateRotation(Rotation rotation) generates (Result retval);
+};
diff --git a/audio/7.0/IStream.hal b/audio/7.0/IStream.hal
new file mode 100644
index 0000000..789cb1d
--- /dev/null
+++ b/audio/7.0/IStream.hal
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+import android.hardware.audio.effect@7.0::IEffect;
+
+interface IStream {
+    /**
+     * Return the frame size (number of bytes per sample).
+     *
+     * @return frameSize frame size in bytes.
+     */
+    getFrameSize() generates (uint64_t frameSize);
+
+    /**
+     * Return the frame count of the buffer. Calling this method is equivalent
+     * to getting AUDIO_PARAMETER_STREAM_FRAME_COUNT on the legacy HAL.
+     *
+     * @return count frame count.
+     */
+    getFrameCount() generates (uint64_t count);
+
+    /**
+     * Return the size of input/output buffer in bytes for this stream.
+     * It must be a multiple of the frame size.
+     *
+     * @return buffer buffer size in bytes.
+     */
+    getBufferSize() generates (uint64_t bufferSize);
+
+    /**
+     * Return supported native sampling rates of the stream for a given format.
+     * A supported native sample rate is a sample rate that can be efficiently
+     * played by the hardware (typically without sample-rate conversions).
+     *
+     * This function is only called for dynamic profile. If called for
+     * non-dynamic profile is should return NOT_SUPPORTED or the same list
+     * as in audio_policy_configuration.xml.
+     *
+     * Calling this method is equivalent to getting
+     * AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES on the legacy HAL.
+     *
+     *
+     * @param format audio format for which the sample rates are supported.
+     * @return retval operation completion status.
+     *                Must be OK if the format is supported.
+     * @return sampleRateHz supported sample rates.
+     */
+    getSupportedSampleRates(AudioFormat format)
+            generates (Result retval, vec<uint32_t> sampleRates);
+
+    /**
+     * Return supported channel masks of the stream. Calling this method is
+     * equivalent to getting AUDIO_PARAMETER_STREAM_SUP_CHANNELS on the legacy
+     * HAL.
+     *
+     * @param format audio format for which the channel masks are supported.
+     * @return retval operation completion status.
+     *                Must be OK if the format is supported.
+     * @return masks supported audio masks.
+     */
+    getSupportedChannelMasks(AudioFormat format)
+            generates (Result retval, vec<vec<AudioChannelMask>> masks);
+
+    /**
+     * Return supported audio formats of the stream. Calling this method is
+     * equivalent to getting AUDIO_PARAMETER_STREAM_SUP_FORMATS on the legacy
+     * HAL.
+     *
+     * @return retval operation completion status.
+     * @return formats supported audio formats.
+     *                 Must be non empty if retval is OK.
+     */
+    getSupportedFormats() generates (Result retval, vec<AudioFormat> formats);
+
+    /**
+     * Retrieves basic stream configuration: sample rate, audio format,
+     * channel mask.
+     *
+     * @return config basic stream configuration.
+     */
+    getAudioProperties() generates (AudioBasicConfig config);
+
+    /**
+     * Sets stream parameters. Only sets parameters that are specified.
+     * See the description of AudioBasicConfig for the details.
+     *
+     * Optional method. If implemented, only called on a stopped stream.
+     *
+     * @param config basic stream configuration.
+     * @return retval operation completion status.
+     */
+    setAudioProperties(AudioBasicConfig config) generates (Result retval);
+
+    /**
+     * Applies audio effect to the stream.
+     *
+     * @param effectId effect ID (obtained from IEffectsFactory.createEffect) of
+     *                 the effect to apply.
+     * @return retval operation completion status.
+     */
+    addEffect(uint64_t effectId) generates (Result retval);
+
+    /**
+     * Stops application of the effect to the stream.
+     *
+     * @param effectId effect ID (obtained from IEffectsFactory.createEffect) of
+     *                 the effect to remove.
+     * @return retval operation completion status.
+     */
+    removeEffect(uint64_t effectId) generates (Result retval);
+
+    /**
+     * Put the audio hardware input/output into standby mode.
+     * Driver must exit from standby mode at the next I/O operation.
+     *
+     * @return retval operation completion status.
+     */
+    standby() generates (Result retval);
+
+    /**
+     * Return the set of devices which this stream is connected to.
+     * Optional method
+     *
+     * @return retval operation completion status: OK or NOT_SUPPORTED.
+     * @return device set of devices which this stream is connected to.
+     */
+    getDevices() generates (Result retval, vec<DeviceAddress> devices);
+
+    /**
+     * Connects the stream to one or multiple devices.
+     *
+     * This method must only be used for HALs that do not support
+     * 'IDevice.createAudioPatch' method. Calling this method is
+     * equivalent to setting AUDIO_PARAMETER_STREAM_ROUTING preceded
+     * with a device address in the legacy HAL interface.
+     *
+     * @param address device to connect the stream to.
+     * @return retval operation completion status.
+     */
+    setDevices(vec<DeviceAddress> devices) generates (Result retval);
+
+    /**
+     * Sets the HW synchronization source. Calling this method is equivalent to
+     * setting AUDIO_PARAMETER_STREAM_HW_AV_SYNC on the legacy HAL.
+     * Optional method
+     *
+     * @param hwAvSync HW synchronization source
+     * @return retval operation completion status.
+     */
+    setHwAvSync(AudioHwSync hwAvSync) generates (Result retval);
+
+    /**
+     * Generic method for retrieving vendor-specific parameter values.
+     * The framework does not interpret the parameters, they are passed
+     * in an opaque manner between a vendor application and HAL.
+     *
+     * Multiple parameters can be retrieved at the same time.
+     * The implementation should return as many requested parameters
+     * as possible, even if one or more is not supported
+     *
+     * @param context provides more information about the request
+     * @param keys keys of the requested parameters
+     * @return retval operation completion status.
+     *         OK must be returned if keys is empty.
+     *         NOT_SUPPORTED must be returned if at least one key is unknown.
+     * @return parameters parameter key value pairs.
+     *         Must contain the value of all requested keys if retval == OK
+     */
+    getParameters(vec<ParameterValue> context, vec<string> keys)
+            generates (Result retval, vec<ParameterValue> parameters);
+
+    /**
+     * Generic method for setting vendor-specific parameter values.
+     * The framework does not interpret the parameters, they are passed
+     * in an opaque manner between a vendor application and HAL.
+     *
+     * Multiple parameters can be set at the same time though this is
+     * discouraged as it make failure analysis harder.
+     *
+     * If possible, a failed setParameters should not impact the platform state.
+     *
+     * @param context provides more information about the request
+     * @param parameters parameter key value pairs.
+     * @return retval operation completion status.
+     *         All parameters must be successfully set for OK to be returned
+     */
+    setParameters(vec<ParameterValue> context, vec<ParameterValue> parameters)
+            generates (Result retval);
+
+    /**
+     * Called by the framework to start a stream operating in mmap mode.
+     * createMmapBuffer() must be called before calling start().
+     * Function only implemented by streams operating in mmap mode.
+     *
+     * @return retval OK in case the success.
+     *                NOT_SUPPORTED on non mmap mode streams
+     *                INVALID_STATE if called out of sequence
+     */
+    start() generates (Result retval);
+
+    /**
+     * Called by the framework to stop a stream operating in mmap mode.
+     * Function only implemented by streams operating in mmap mode.
+     *
+     * @return retval OK in case the success.
+     *                NOT_SUPPORTED on non mmap mode streams
+     *                INVALID_STATE if called out of sequence
+     */
+    stop() generates (Result retval) ;
+
+    /**
+     * Called by the framework to retrieve information on the mmap buffer used for audio
+     * samples transfer.
+     * Function only implemented by streams operating in mmap mode.
+     *
+     * @param minSizeFrames minimum buffer size requested. The actual buffer
+     *                     size returned in struct MmapBufferInfo can be larger.
+     *                     The size must be a positive value.
+     * @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 invalid
+     *                INVALID_STATE if called out of sequence
+     * @return info    a MmapBufferInfo struct containing information on the MMMAP buffer created.
+     */
+    createMmapBuffer(int32_t minSizeFrames)
+            generates (Result retval, MmapBufferInfo info);
+
+    /**
+     * Called by the framework to read current read/write position in the mmap buffer
+     * with associated time stamp.
+     * Function only implemented by streams operating in mmap mode.
+     *
+     * @return retval OK in case the success.
+     *                NOT_SUPPORTED on non mmap mode streams
+     *                INVALID_STATE if called out of sequence
+     * @return position a MmapPosition struct containing current HW read/write position in frames
+     *                  with associated time stamp.
+     */
+    getMmapPosition()
+            generates (Result retval, MmapPosition position);
+
+    /**
+     * Called by the framework to deinitialize the stream and free up
+     * 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.
+     */
+    close() generates (Result retval);
+};
diff --git a/audio/7.0/IStreamIn.hal b/audio/7.0/IStreamIn.hal
new file mode 100644
index 0000000..0a3f24b
--- /dev/null
+++ b/audio/7.0/IStreamIn.hal
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+import IStream;
+
+interface IStreamIn extends IStream {
+    /**
+     * Returns the source descriptor of the input stream. Calling this method is
+     * equivalent to getting AUDIO_PARAMETER_STREAM_INPUT_SOURCE on the legacy
+     * HAL.
+     * Optional method
+     *
+     * @return retval operation completion status.
+     * @return source audio source.
+     */
+    getAudioSource() generates (Result retval, AudioSource source);
+
+    /**
+     * Set the input gain for the audio driver.
+     * Optional method
+     *
+     * @param gain 1.0f is unity, 0.0f is zero.
+     * @result retval operation completion status.
+     */
+    setGain(float gain) generates (Result retval);
+
+    /**
+     * Commands that can be executed on the driver reader thread.
+     */
+    enum ReadCommand : int32_t {
+        READ,
+        GET_CAPTURE_POSITION
+    };
+
+    /**
+     * Data structure passed to the driver for executing commands
+     * on the driver reader thread.
+     */
+    struct ReadParameters {
+        ReadCommand command;  // discriminator
+        union Params {
+            uint64_t read;    // READ command, amount of bytes to read, >= 0.
+            // No parameters for GET_CAPTURE_POSITION.
+        } params;
+    };
+
+    /**
+     * Data structure passed back to the client via status message queue
+     * of 'read' operation.
+     *
+     * Possible values of 'retval' field:
+     *  - OK, read operation was successful;
+     *  - INVALID_ARGUMENTS, stream was not configured properly;
+     *  - INVALID_STATE, stream is in a state that doesn't allow reads.
+     */
+    struct ReadStatus {
+        Result retval;
+        ReadCommand replyTo;  // discriminator
+        union Reply {
+            uint64_t read;    // READ command, amount of bytes read, >= 0.
+            struct CapturePosition { // same as generated by getCapturePosition.
+                uint64_t frames;
+                uint64_t time;
+            } capturePosition;
+        } reply;
+    };
+
+    /**
+     * Called when the metadata of the stream's sink has been changed.
+     * @param sinkMetadata Description of the audio that is suggested by the clients.
+     */
+    updateSinkMetadata(SinkMetadata sinkMetadata);
+
+    /**
+     * Set up required transports for receiving audio buffers from the driver.
+     *
+     * The transport consists of three message queues:
+     *  -- command queue is used to instruct the reader thread what operation
+     *     to perform;
+     *  -- data queue is used for passing audio data from the driver
+     *     to the client;
+     *  -- status queue is used for reporting operation status
+     *     (e.g. amount of bytes actually read or error code).
+     *
+     * The driver operates on a dedicated thread. The client must ensure that
+     * the thread is given an appropriate priority and assigned to correct
+     * scheduler and cgroup. For this purpose, the method returns the identifier
+     * of the driver thread.
+     *
+     * @param frameSize the size of a single frame, in bytes.
+     * @param framesCount the number of frames in a buffer.
+     * @param threadPriority priority of the driver thread.
+     * @return retval OK if both message queues were created successfully.
+     *                INVALID_STATE if the method was already called.
+     *                INVALID_ARGUMENTS if there was a problem setting up
+     *                                  the queues.
+     * @return commandMQ a message queue used for passing commands.
+     * @return dataMQ a message queue used for passing audio data in the format
+     *                specified at the stream opening.
+     * @return statusMQ a message queue used for passing status from the driver
+     *                  using ReadStatus structures.
+     * @return threadId identifier of the driver's dedicated thread; the caller
+     *                  may adjust the thread priority to match the priority
+     *                  of the thread that provides audio data.
+     */
+    prepareForReading(uint32_t frameSize, uint32_t framesCount)
+    generates (
+            Result retval,
+            fmq_sync<ReadParameters> commandMQ,
+            fmq_sync<uint8_t> dataMQ,
+            fmq_sync<ReadStatus> statusMQ,
+            int32_t threadId);
+
+    /**
+     * Return the amount of input frames lost in the audio driver since the last
+     * call of this function.
+     *
+     * Audio driver is expected to reset the value to 0 and restart counting
+     * upon returning the current value by this function call. Such loss
+     * typically occurs when the user space process is blocked longer than the
+     * capacity of audio driver buffers.
+     *
+     * @return framesLost the number of input audio frames lost.
+     */
+    getInputFramesLost() generates (uint32_t framesLost);
+
+    /**
+     * Return a recent count of the number of audio frames received and the
+     * clock time associated with that frame count.
+     *
+     * @return retval INVALID_STATE if the device is not ready/available,
+     *                NOT_SUPPORTED if the command is not supported,
+     *                OK otherwise.
+     * @return frames the total frame count received. This must be as early in
+     *                the capture pipeline as possible. In general, frames
+     *                must be non-negative and must not go "backwards".
+     * @return time is the clock monotonic time when frames was measured. In
+     *              general, time must be a positive quantity and must not
+     *              go "backwards".
+     */
+    getCapturePosition()
+            generates (Result retval, uint64_t frames, uint64_t time);
+
+    /**
+     * Returns an array with active microphones in the stream.
+     *
+     * @return retval INVALID_STATE if the call is not successful,
+     *                OK otherwise.
+     *
+     * @return microphones array with microphones info
+     */
+    getActiveMicrophones()
+               generates(Result retval, vec<MicrophoneInfo> microphones);
+
+    /**
+     * Specifies the logical microphone (for processing).
+     *
+     * If the feature is not supported an error should be returned
+     * If multiple microphones are present, this should be treated as a preference
+     * for their combined direction.
+     *
+     * Optional method
+     *
+     * @param Direction constant
+     * @return retval OK if the call is successful, an error code otherwise.
+     */
+    setMicrophoneDirection(MicrophoneDirection direction)
+               generates(Result retval);
+
+    /**
+     * Specifies the zoom factor for the selected microphone (for processing).
+     *
+     * If the feature is not supported an error should be returned
+     * If multiple microphones are present, this should be treated as a preference
+     * for their combined field dimension.
+     *
+     * Optional method
+     *
+     * @param the desired field dimension of microphone capture. Range is from -1 (wide angle),
+     * though 0 (no zoom) to 1 (maximum zoom).
+     *
+     * @return retval OK if the call is not successful, an error code otherwise.
+     */
+    setMicrophoneFieldDimension(float zoom) generates(Result retval);
+};
diff --git a/audio/7.0/IStreamOut.hal b/audio/7.0/IStreamOut.hal
new file mode 100644
index 0000000..38d750f
--- /dev/null
+++ b/audio/7.0/IStreamOut.hal
@@ -0,0 +1,380 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+import IStream;
+import IStreamOutCallback;
+import IStreamOutEventCallback;
+
+interface IStreamOut extends IStream {
+    /**
+     * Return the audio hardware driver estimated latency in milliseconds.
+     *
+     * @return latencyMs latency in milliseconds.
+     */
+    getLatency() generates (uint32_t latencyMs);
+
+    /**
+     * This method is used in situations where audio mixing is done in the
+     * hardware. This method serves as a direct interface with hardware,
+     * allowing to directly set the volume as apposed to via the framework.
+     * This method might produce multiple PCM outputs or hardware accelerated
+     * codecs, such as MP3 or AAC.
+     * Optional method
+     *
+     * @param left left channel attenuation, 1.0f is unity, 0.0f is zero.
+     * @param right right channel attenuation, 1.0f is unity, 0.0f is zero.
+     * @return retval operation completion status.
+     *        If a volume is outside [0,1], return INVALID_ARGUMENTS
+     */
+    setVolume(float left, float right) generates (Result retval);
+
+    /**
+     * Commands that can be executed on the driver writer thread.
+     */
+    enum WriteCommand : int32_t {
+        WRITE,
+        GET_PRESENTATION_POSITION,
+        GET_LATENCY
+    };
+
+    /**
+     * Data structure passed back to the client via status message queue
+     * of 'write' operation.
+     *
+     * Possible values of 'retval' field:
+     *  - OK, write operation was successful;
+     *  - INVALID_ARGUMENTS, stream was not configured properly;
+     *  - INVALID_STATE, stream is in a state that doesn't allow writes;
+     *  - INVALID_OPERATION, retrieving presentation position isn't supported.
+     */
+    struct WriteStatus {
+        Result retval;
+        WriteCommand replyTo;  // discriminator
+        union Reply {
+            uint64_t written;  // WRITE command, amount of bytes written, >= 0.
+            struct PresentationPosition {  // same as generated by
+                uint64_t frames;           // getPresentationPosition.
+                TimeSpec timeStamp;
+            } presentationPosition;
+            uint32_t latencyMs; // Same as generated by getLatency.
+        } reply;
+    };
+
+    /**
+     * Called when the metadata of the stream's source has been changed.
+     * @param sourceMetadata Description of the audio that is played by the clients.
+     */
+    updateSourceMetadata(SourceMetadata sourceMetadata);
+
+    /**
+     * Set up required transports for passing audio buffers to the driver.
+     *
+     * The transport consists of three message queues:
+     *  -- command queue is used to instruct the writer thread what operation
+     *     to perform;
+     *  -- data queue is used for passing audio data from the client
+     *     to the driver;
+     *  -- status queue is used for reporting operation status
+     *     (e.g. amount of bytes actually written or error code).
+     *
+     * The driver operates on a dedicated thread. The client must ensure that
+     * the thread is given an appropriate priority and assigned to correct
+     * scheduler and cgroup. For this purpose, the method returns the identifier
+     * of the driver thread.
+     *
+     * @param frameSize the size of a single frame, in bytes.
+     * @param framesCount the number of frames in a buffer.
+     * @return retval OK if both message queues were created successfully.
+     *                INVALID_STATE if the method was already called.
+     *                INVALID_ARGUMENTS if there was a problem setting up
+     *                                  the queues.
+     * @return commandMQ a message queue used for passing commands.
+     * @return dataMQ a message queue used for passing audio data in the format
+     *                specified at the stream opening.
+     * @return statusMQ a message queue used for passing status from the driver
+     *                  using WriteStatus structures.
+     * @return threadId identifier of the driver's dedicated thread; the caller
+     *                  may adjust the thread priority to match the priority
+     *                  of the thread that provides audio data.
+     */
+    prepareForWriting(uint32_t frameSize, uint32_t framesCount)
+    generates (
+            Result retval,
+            fmq_sync<WriteCommand> commandMQ,
+            fmq_sync<uint8_t> dataMQ,
+            fmq_sync<WriteStatus> statusMQ,
+            int32_t threadId);
+
+    /**
+     * Return the number of audio frames written by the audio DSP to DAC since
+     * the output has exited standby.
+     * Optional method
+     *
+     * @return retval operation completion status.
+     * @return dspFrames number of audio frames written.
+     */
+    getRenderPosition() generates (Result retval, uint32_t dspFrames);
+
+    /**
+     * Get the local time at which the next write to the audio driver will be
+     * presented. The units are microseconds, where the epoch is decided by the
+     * local audio HAL.
+     * Optional method
+     *
+     * @return retval operation completion status.
+     * @return timestampUs time of the next write.
+     */
+    getNextWriteTimestamp() generates (Result retval, int64_t timestampUs);
+
+    /**
+     * Set the callback interface for notifying completion of non-blocking
+     * write and drain.
+     *
+     * Calling this function implies that all future 'write' and 'drain'
+     * must be non-blocking and use the callback to signal completion.
+     *
+     * 'clearCallback' method needs to be called in order to release the local
+     * callback proxy on the server side and thus dereference the callback
+     * implementation on the client side.
+     *
+     * @return retval operation completion status.
+     */
+    setCallback(IStreamOutCallback callback) generates (Result retval);
+
+    /**
+     * Clears the callback previously set via 'setCallback' method.
+     *
+     * Warning: failure to call this method results in callback implementation
+     * on the client side being held until the HAL server termination.
+     *
+     * If no callback was previously set, the method should be a no-op
+     * and return OK.
+     *
+     * @return retval operation completion status: OK or NOT_SUPPORTED.
+     */
+    clearCallback() generates (Result retval);
+
+    /**
+     * Set the callback interface for notifying about an output stream event.
+     *
+     * Calling this method with a null pointer will result in releasing
+     * the local callback proxy on the server side and thus dereference
+     * the callback implementation on the client side.
+     *
+     * @return retval operation completion status.
+     */
+    setEventCallback(IStreamOutEventCallback callback)
+            generates (Result retval);
+
+    /**
+     * Returns whether HAL supports pausing and resuming of streams.
+     *
+     * @return supportsPause true if pausing is supported.
+     * @return supportsResume true if resume is supported.
+     */
+    supportsPauseAndResume()
+            generates (bool supportsPause, bool supportsResume);
+
+    /**
+     * Notifies to the audio driver to stop playback however the queued buffers
+     * are retained by the hardware. Useful for implementing pause/resume. Empty
+     * implementation if not supported however must be implemented for hardware
+     * with non-trivial latency. In the pause state, some audio hardware may
+     * still be using power. Client code may consider calling 'suspend' after a
+     * timeout to prevent that excess power usage.
+     *
+     * Implementation of this function is mandatory for offloaded playback.
+     *
+     * @return retval operation completion status.
+     */
+    pause() generates (Result retval);
+
+    /**
+     * Notifies to the audio driver to resume playback following a pause.
+     * Returns error INVALID_STATE if called without matching pause.
+     *
+     * Implementation of this function is mandatory for offloaded playback.
+     *
+     * @return retval operation completion status.
+     */
+    resume() generates (Result retval);
+
+    /**
+     * Returns whether HAL supports draining of streams.
+     *
+     * @return supports true if draining is supported.
+     */
+    supportsDrain() generates (bool supports);
+
+    /**
+     * Requests notification when data buffered by the driver/hardware has been
+     * played. If 'setCallback' has previously been called to enable
+     * non-blocking mode, then 'drain' must not block, instead it must return
+     * quickly and completion of the drain is notified through the callback. If
+     * 'setCallback' has not been called, then 'drain' must block until
+     * completion.
+     *
+     * If 'type' is 'ALL', the drain completes when all previously written data
+     * has been played.
+     *
+     * If 'type' is 'EARLY_NOTIFY', the drain completes shortly before all data
+     * for the current track has played to allow time for the framework to
+     * perform a gapless track switch.
+     *
+     * Drain must return immediately on 'stop' and 'flush' calls.
+     *
+     * Implementation of this function is mandatory for offloaded playback.
+     *
+     * @param type type of drain.
+     * @return retval operation completion status.
+     */
+    drain(AudioDrain type) generates (Result retval);
+
+    /**
+     * Notifies to the audio driver to flush the queued data. Stream must
+     * already be paused before calling 'flush'.
+     * Optional method
+     *
+     * Implementation of this function is mandatory for offloaded playback.
+     *
+     * @return retval operation completion status.
+     */
+    flush() generates (Result retval);
+
+    /**
+     * Return a recent count of the number of audio frames presented to an
+     * external observer. This excludes frames which have been written but are
+     * still in the pipeline. The count is not reset to zero when output enters
+     * standby. Also returns the value of CLOCK_MONOTONIC as of this
+     * presentation count. The returned count is expected to be 'recent', but
+     * does not need to be the most recent possible value. However, the
+     * associated time must correspond to whatever count is returned.
+     *
+     * Example: assume that N+M frames have been presented, where M is a 'small'
+     * number. Then it is permissible to return N instead of N+M, and the
+     * timestamp must correspond to N rather than N+M. The terms 'recent' and
+     * 'small' are not defined. They reflect the quality of the implementation.
+     *
+     * Optional method
+     *
+     * @return retval operation completion status.
+     * @return frames count of presented audio frames.
+     * @return timeStamp associated clock time.
+     */
+    getPresentationPosition()
+            generates (Result retval, uint64_t frames, TimeSpec timeStamp);
+
+    /**
+     * Selects a presentation for decoding from a next generation media stream
+     * (as defined per ETSI TS 103 190-2) and a program within the presentation.
+     * Optional method
+     *
+     * @param presentationId selected audio presentation.
+     * @param programId refinement for the presentation.
+     * @return retval operation completion status.
+     */
+    selectPresentation(int32_t presentationId, int32_t programId)
+            generates (Result retval);
+
+    /**
+     * Returns the Dual Mono mode presentation setting.
+     *
+     * Optional method
+     *
+     * @return retval operation completion status.
+     * @return mode current setting of Dual Mono mode.
+     */
+    getDualMonoMode() generates (Result retval, DualMonoMode mode);
+
+    /**
+     * Sets the Dual Mono mode presentation on the output device.
+     *
+     * The Dual Mono mode is generally applied to stereo audio streams
+     * where the left and right channels come from separate sources.
+     *
+     * Optional method
+     *
+     * @param mode selected Dual Mono mode.
+     * @return retval operation completion status.
+     */
+    setDualMonoMode(DualMonoMode mode) generates (Result retval);
+
+    /**
+     * Returns the Audio Description Mix level in dB.
+     *
+     * The level is applied to streams incorporating a secondary Audio
+     * Description stream. It specifies the relative level of mixing for
+     * the Audio Description with a reference to the Main Audio.
+     *
+     * Optional method
+     *
+     * The value of the relative level is in the range from negative infinity
+     * to +48.
+     *
+     * @return retval operation completion status.
+     * @return leveldB the current Audio Description Mix Level in dB.
+     */
+    getAudioDescriptionMixLevel() generates (Result retval, float leveldB);
+
+    /**
+     * Sets the Audio Description Mix level in dB.
+     *
+     * For streams incorporating a secondary Audio Description stream
+     * the relative level of mixing of the Audio Description to the Main Audio
+     * is controlled by this method.
+     *
+     * Optional method
+     *
+     * The value of the relative level must be in the range from negative
+     * infinity to +48.
+     *
+     * @param leveldB Audio Description Mix Level in dB
+     * @return retval operation completion status.
+     */
+    setAudioDescriptionMixLevel(float leveldB) generates (Result retval);
+
+    /**
+     * Retrieves current playback rate parameters.
+     *
+     * Optional method
+     *
+     * @return retval operation completion status.
+     * @return playbackRate current playback parameters
+     */
+    getPlaybackRateParameters()
+            generates (Result retval, PlaybackRate playbackRate);
+
+    /**
+     * Sets the playback rate parameters that control playback behavior.
+     * This is normally used when playing encoded content and decoding
+     * is performed in hardware. Otherwise, the framework can apply
+     * necessary transformations.
+     *
+     * Optional method
+     *
+     * If the HAL supports setting the playback rate, it is recommended
+     * to support speed and pitch values at least in the range
+     * from 0.5f to 2.0f, inclusive (see the definition of PlaybackRate struct).
+     *
+     * @param playbackRate playback parameters
+     * @return retval operation completion status.
+     */
+    setPlaybackRateParameters(PlaybackRate playbackRate)
+            generates (Result retval);
+};
diff --git a/audio/7.0/IStreamOutCallback.hal b/audio/7.0/IStreamOutCallback.hal
new file mode 100644
index 0000000..7b9d47f
--- /dev/null
+++ b/audio/7.0/IStreamOutCallback.hal
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+/**
+ * Asynchronous write callback interface.
+ */
+interface IStreamOutCallback {
+    /**
+     * Non blocking write completed.
+     */
+    oneway onWriteReady();
+
+    /**
+     * Drain completed.
+     */
+    oneway onDrainReady();
+
+    /**
+     * Stream hit an error.
+     */
+    oneway onError();
+};
diff --git a/audio/7.0/IStreamOutEventCallback.hal b/audio/7.0/IStreamOutEventCallback.hal
new file mode 100644
index 0000000..52e65d3
--- /dev/null
+++ b/audio/7.0/IStreamOutEventCallback.hal
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+/**
+ * Asynchronous stream out event callback interface. The interface provides
+ * a way for the HAL to notify platform when there are changes, e.g. codec
+ * format change, from the lower layer.
+ */
+interface IStreamOutEventCallback {
+    /**
+     * Codec format changed.
+     *
+     * onCodecFormatChanged returns an AudioMetadata object in read-only ByteString format.
+     * It represents the most recent codec format decoded by a HW audio decoder.
+     *
+     * Codec format is an optional message from HW audio decoders. It serves to
+     * notify the application about the codec format and audio objects contained
+     * within the compressed audio stream for control, informational,
+     * and display purposes.
+     *
+     * audioMetadata ByteString is convertible to an AudioMetadata object through
+     * both a C++ and a C API present in Metadata.h [1], or through a Java API present
+     * in AudioMetadata.java [2].
+     *
+     * The ByteString format is a stable format used for parcelling (marshalling) across
+     * JNI, AIDL, and HIDL interfaces.  The test for R compatibility for native marshalling
+     * is TEST(metadata_tests, compatibility_R) [3].  The test for R compatibility for JNI
+     * marshalling is android.media.cts.AudioMetadataTest#testCompatibilityR [4].
+     *
+     * R (audio HAL 7.0) defined keys are as follows [2]:
+     * "bitrate", int32
+     * "channel-mask", int32
+     * "mime", string
+     * "sample-rate", int32
+     * "bit-width", int32
+     * "has-atmos", int32
+     * "audio-encoding", int32
+     *
+     * Parceling Format:
+     * All values are native endian order. [1]
+     *
+     * using type_size_t = uint32_t;
+     * using index_size_t = uint32_t;
+     * using datum_size_t = uint32_t;
+     *
+     * Permitted type indexes are
+     * TYPE_NONE = 0, // Reserved
+     * TYPE_INT32 = 1,
+     * TYPE_INT64 = 2,
+     * TYPE_FLOAT = 3,
+     * TYPE_DOUBLE = 4,
+     * TYPE_STRING = 5,
+     * TYPE_DATA = 6,  // A data table of <String, Datum>
+     *
+     * Datum = {
+     *           (type_size_t)  Type (the type index from type_as_value<T>.)
+     *           (datum_size_t) Size (size of the Payload)
+     *           (byte string)  Payload<Type>
+     *         }
+     *
+     * The data is specified in native endian order.
+     * Since the size of the Payload is always present, unknown types may be skipped.
+     *
+     * Payload<Fixed-size Primitive_Value>
+     * [ sizeof(Primitive_Value) in raw bytes ]
+     *
+     * Example of Payload<Int32> of 123:
+     * Payload<Int32>
+     * [ value of 123                   ] =  0x7b 0x00 0x00 0x00       123
+     *
+     * Payload<String>
+     * [ (index_size_t) length, not including zero terminator.]
+     * [ (length) raw bytes ]
+     *
+     * Example of Payload<String> of std::string("hi"):
+     * [ (index_size_t) length          ] = 0x02 0x00 0x00 0x00        2 strlen("hi")
+     * [ raw bytes "hi"                 ] = 0x68 0x69                  "hi"
+     *
+     * Payload<Data>
+     * [ (index_size_t) entries ]
+     * [ raw bytes   (entry 1) Key   (Payload<String>)
+     *                         Value (Datum)
+     *                ...  (until #entries) ]
+     *
+     * Example of Payload<Data> of {{"hello", "world"},
+     *                              {"value", (int32_t)1000}};
+     * [ (index_size_t) #entries        ] = 0x02 0x00 0x00 0x00        2 entries
+     *    Key (Payload<String>)
+     *    [ index_size_t length         ] = 0x05 0x00 0x00 0x00        5 strlen("hello")
+     *    [ raw bytes "hello"           ] = 0x68 0x65 0x6c 0x6c 0x6f   "hello"
+     *    Value (Datum)
+     *    [ (type_size_t) type          ] = 0x05 0x00 0x00 0x00        5 (TYPE_STRING)
+     *    [ (datum_size_t) size         ] = 0x09 0x00 0x00 0x00        sizeof(index_size_t) +
+     *                                                                 strlen("world")
+     *       Payload<String>
+     *       [ (index_size_t) length    ] = 0x05 0x00 0x00 0x00        5 strlen("world")
+     *       [ raw bytes "world"        ] = 0x77 0x6f 0x72 0x6c 0x64   "world"
+     *    Key (Payload<String>)
+     *    [ index_size_t length         ] = 0x05 0x00 0x00 0x00        5 strlen("value")
+     *    [ raw bytes "value"           ] = 0x76 0x61 0x6c 0x75 0x65   "value"
+     *    Value (Datum)
+     *    [ (type_size_t) type          ] = 0x01 0x00 0x00 0x00        1 (TYPE_INT32)
+     *    [ (datum_size_t) size         ] = 0x04 0x00 0x00 0x00        4 sizeof(int32_t)
+     *        Payload<Int32>
+     *        [ raw bytes 1000          ] = 0xe8 0x03 0x00 0x00        1000
+     *
+     * The contents of audioMetadata is a Payload<Data>.
+     * An implementation dependent detail is that the Keys are always
+     * stored sorted, so the byte string representation generated is unique.
+     *
+     * Vendor keys are allowed for informational and debugging purposes.
+     * Vendor keys should consist of the vendor company name followed
+     * by a dot; for example, "vendorCompany.someVolume" [2].
+     *
+     * [1] system/media/audio_utils/include/audio_utils/Metadata.h
+     * [2] frameworks/base/media/java/android/media/AudioMetadata.java
+     * [3] system/media/audio_utils/tests/metadata_tests.cpp
+     * [4] cts/tests/tests/media/src/android/media/cts/AudioMetadataTest.java
+     *
+     * @param audioMetadata is a buffer containing decoded format changes
+     *     reported by codec. The buffer contains data that can be transformed
+     *     to audio metadata, which is a C++ object based map.
+     */
+    oneway onCodecFormatChanged(vec<uint8_t> audioMetadata);
+};
diff --git a/audio/7.0/config/Android.bp b/audio/7.0/config/Android.bp
new file mode 100644
index 0000000..015c424
--- /dev/null
+++ b/audio/7.0/config/Android.bp
@@ -0,0 +1,5 @@
+xsd_config {
+    name: "audio_policy_configuration_V7_0",
+    srcs: ["audio_policy_configuration.xsd"],
+    package_name: "audio.policy.configuration.V7_0",
+}
diff --git a/audio/7.0/config/api/current.txt b/audio/7.0/config/api/current.txt
new file mode 100644
index 0000000..fd9a8ef
--- /dev/null
+++ b/audio/7.0/config/api/current.txt
@@ -0,0 +1,534 @@
+// Signature format: 2.0
+package audio.policy.configuration.V7_0 {
+
+  public class AttachedDevices {
+    ctor public AttachedDevices();
+    method public java.util.List<java.lang.String> getItem();
+  }
+
+  public enum AudioChannelMask {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_10;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_11;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_12;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_13;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_14;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_15;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_16;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_17;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_18;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_19;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_20;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_21;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_22;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_23;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_24;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_3;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_5;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_6;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_7;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_8;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_9;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_2POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_2POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_3POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_3POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_5POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_6;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_FRONT_BACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_STEREO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_CALL_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1POINT4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1_BACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1_SIDE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_6POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1POINT4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_HAPTIC_AB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_MONO_HAPTIC_A;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_PENTA;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD_BACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD_SIDE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_SURROUND;
+  }
+
+  public enum AudioContentType {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_MOVIE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_MUSIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_SONIFICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_SPEECH;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_UNKNOWN;
+  }
+
+  public enum AudioDevice {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_AMBIENT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_AUX_DIGITAL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BACK_MIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_BLE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BUILTIN_MIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BUS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_COMMUNICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_DEFAULT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_ECHO_REFERENCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_FM_TUNER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_HDMI;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_HDMI_ARC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_IP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_LINE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_LOOPBACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_PROXY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_REMOTE_SUBMIX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_SPDIF;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_STUB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_TELEPHONY_RX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_TV_TUNER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_USB_ACCESSORY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_USB_DEVICE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_USB_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_VOICE_CALL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_WIRED_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_NONE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_AUX_DIGITAL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_AUX_LINE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BUS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_DEFAULT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_EARPIECE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_ECHO_CANCELLER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_FM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_HDMI;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_HDMI_ARC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_HEARING_AID;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_IP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_LINE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_PROXY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_SPDIF;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_SPEAKER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_SPEAKER_SAFE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_STUB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_TELEPHONY_TX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_USB_ACCESSORY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_USB_DEVICE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_USB_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_WIRED_HEADSET;
+  }
+
+  public enum AudioFormat {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADIF;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_ELD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_ERLC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_HE_V1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_HE_V2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_LC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_LD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_LTP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_MAIN;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_SCALABLE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_SSR;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ADTS_XHE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ELD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_ERLC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_HE_V1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_HE_V2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LATM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LATM_HE_V1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LATM_HE_V2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LATM_LC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_LTP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_MAIN;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_SCALABLE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_SSR;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AAC_XHE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AC3;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AC4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_ALAC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AMR_NB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AMR_WB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_AMR_WB_PLUS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APTX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APTX_ADAPTIVE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APTX_HD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APTX_TWSP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_CELT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DEFAULT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DOLBY_TRUEHD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DSD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DTS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DTS_HD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_EVRC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_EVRCB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_EVRCNW;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_EVRCWB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_E_AC3;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_E_AC3_JOC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_FLAC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_HE_AAC_V1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_HE_AAC_V2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_IEC61937;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LDAC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LHDC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LHDC_LL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT_1_0;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT_2_0;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT_2_1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MP2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MP3;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_OPUS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_PCM_16_BIT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_PCM_24_BIT_PACKED;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_PCM_32_BIT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_PCM_8_24_BIT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_PCM_8_BIT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_PCM_FLOAT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_QCELP;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_SBC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_VORBIS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_WMA;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_WMA_PRO;
+  }
+
+  public class AudioPolicyConfiguration {
+    ctor public AudioPolicyConfiguration();
+    method public audio.policy.configuration.V7_0.GlobalConfiguration getGlobalConfiguration();
+    method public java.util.List<audio.policy.configuration.V7_0.Modules> getModules();
+    method public audio.policy.configuration.V7_0.SurroundSound getSurroundSound();
+    method public audio.policy.configuration.V7_0.Version getVersion();
+    method public java.util.List<audio.policy.configuration.V7_0.Volumes> getVolumes();
+    method public void setGlobalConfiguration(audio.policy.configuration.V7_0.GlobalConfiguration);
+    method public void setSurroundSound(audio.policy.configuration.V7_0.SurroundSound);
+    method public void setVersion(audio.policy.configuration.V7_0.Version);
+  }
+
+  public enum AudioSource {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_CAMCORDER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_DEFAULT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_ECHO_REFERENCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_FM_TUNER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_HOTWORD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_MIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_REMOTE_SUBMIX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_UNPROCESSED;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_CALL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_COMMUNICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_DOWNLINK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_PERFORMANCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_RECOGNITION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_UPLINK;
+  }
+
+  public enum AudioStreamType {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ACCESSIBILITY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ALARM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ASSISTANT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_BLUETOOTH_SCO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_DTMF;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ENFORCED_AUDIBLE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_MUSIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_NOTIFICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_PATCH;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_REROUTING;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_RING;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_SYSTEM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_TTS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_VOICE_CALL;
+  }
+
+  public enum AudioUsage {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ALARM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ANNOUNCEMENT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANCE_SONIFICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_CALL_ASSISTANT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_EMERGENCY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_GAME;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_MEDIA;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_NOTIFICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_SAFETY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_UNKNOWN;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VEHICLE_STATUS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VIRTUAL_SOURCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VOICE_COMMUNICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
+  }
+
+  public enum DeviceCategory {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.DeviceCategory DEVICE_CATEGORY_EARPIECE;
+    enum_constant public static final audio.policy.configuration.V7_0.DeviceCategory DEVICE_CATEGORY_EXT_MEDIA;
+    enum_constant public static final audio.policy.configuration.V7_0.DeviceCategory DEVICE_CATEGORY_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.DeviceCategory DEVICE_CATEGORY_HEARING_AID;
+    enum_constant public static final audio.policy.configuration.V7_0.DeviceCategory DEVICE_CATEGORY_SPEAKER;
+  }
+
+  public class DevicePorts {
+    ctor public DevicePorts();
+    method public java.util.List<audio.policy.configuration.V7_0.DevicePorts.DevicePort> getDevicePort();
+  }
+
+  public static class DevicePorts.DevicePort {
+    ctor public DevicePorts.DevicePort();
+    method public String getAddress();
+    method public java.util.List<audio.policy.configuration.V7_0.AudioFormat> getEncodedFormats();
+    method public audio.policy.configuration.V7_0.Gains getGains();
+    method public java.util.List<audio.policy.configuration.V7_0.Profile> getProfile();
+    method public audio.policy.configuration.V7_0.Role getRole();
+    method public String getTagName();
+    method public String getType();
+    method public boolean get_default();
+    method public void setAddress(String);
+    method public void setEncodedFormats(java.util.List<audio.policy.configuration.V7_0.AudioFormat>);
+    method public void setGains(audio.policy.configuration.V7_0.Gains);
+    method public void setRole(audio.policy.configuration.V7_0.Role);
+    method public void setTagName(String);
+    method public void setType(String);
+    method public void set_default(boolean);
+  }
+
+  public enum EngineSuffix {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.EngineSuffix _default;
+    enum_constant public static final audio.policy.configuration.V7_0.EngineSuffix configurable;
+  }
+
+  public enum GainMode {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.GainMode AUDIO_GAIN_MODE_CHANNELS;
+    enum_constant public static final audio.policy.configuration.V7_0.GainMode AUDIO_GAIN_MODE_JOINT;
+    enum_constant public static final audio.policy.configuration.V7_0.GainMode AUDIO_GAIN_MODE_RAMP;
+  }
+
+  public class Gains {
+    ctor public Gains();
+    method public java.util.List<audio.policy.configuration.V7_0.Gains.Gain> getGain();
+  }
+
+  public static class Gains.Gain {
+    ctor public Gains.Gain();
+    method public audio.policy.configuration.V7_0.AudioChannelMask getChannel_mask();
+    method public int getDefaultValueMB();
+    method public int getMaxRampMs();
+    method public int getMaxValueMB();
+    method public int getMinRampMs();
+    method public int getMinValueMB();
+    method public audio.policy.configuration.V7_0.GainMode getMode();
+    method public String getName();
+    method public int getStepValueMB();
+    method public boolean getUseForVolume();
+    method public void setChannel_mask(audio.policy.configuration.V7_0.AudioChannelMask);
+    method public void setDefaultValueMB(int);
+    method public void setMaxRampMs(int);
+    method public void setMaxValueMB(int);
+    method public void setMinRampMs(int);
+    method public void setMinValueMB(int);
+    method public void setMode(audio.policy.configuration.V7_0.GainMode);
+    method public void setName(String);
+    method public void setStepValueMB(int);
+    method public void setUseForVolume(boolean);
+  }
+
+  public class GlobalConfiguration {
+    ctor public GlobalConfiguration();
+    method public boolean getCall_screen_mode_supported();
+    method public audio.policy.configuration.V7_0.EngineSuffix getEngine_library();
+    method public boolean getSpeaker_drc_enabled();
+    method public void setCall_screen_mode_supported(boolean);
+    method public void setEngine_library(audio.policy.configuration.V7_0.EngineSuffix);
+    method public void setSpeaker_drc_enabled(boolean);
+  }
+
+  public enum HalVersion {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.HalVersion _2_0;
+    enum_constant public static final audio.policy.configuration.V7_0.HalVersion _3_0;
+  }
+
+  public class MixPorts {
+    ctor public MixPorts();
+    method public java.util.List<audio.policy.configuration.V7_0.MixPorts.MixPort> getMixPort();
+  }
+
+  public static class MixPorts.MixPort {
+    ctor public MixPorts.MixPort();
+    method public String getFlags();
+    method public audio.policy.configuration.V7_0.Gains getGains();
+    method public long getMaxActiveCount();
+    method public long getMaxOpenCount();
+    method public String getName();
+    method public java.util.List<audio.policy.configuration.V7_0.AudioUsage> getPreferredUsage();
+    method public java.util.List<audio.policy.configuration.V7_0.Profile> getProfile();
+    method public audio.policy.configuration.V7_0.Role getRole();
+    method public void setFlags(String);
+    method public void setGains(audio.policy.configuration.V7_0.Gains);
+    method public void setMaxActiveCount(long);
+    method public void setMaxOpenCount(long);
+    method public void setName(String);
+    method public void setPreferredUsage(java.util.List<audio.policy.configuration.V7_0.AudioUsage>);
+    method public void setRole(audio.policy.configuration.V7_0.Role);
+  }
+
+  public enum MixType {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.MixType mix;
+    enum_constant public static final audio.policy.configuration.V7_0.MixType mux;
+  }
+
+  public class Modules {
+    ctor public Modules();
+    method public java.util.List<audio.policy.configuration.V7_0.Modules.Module> getModule();
+  }
+
+  public static class Modules.Module {
+    ctor public Modules.Module();
+    method public audio.policy.configuration.V7_0.AttachedDevices getAttachedDevices();
+    method public String getDefaultOutputDevice();
+    method public audio.policy.configuration.V7_0.DevicePorts getDevicePorts();
+    method public audio.policy.configuration.V7_0.HalVersion getHalVersion();
+    method public audio.policy.configuration.V7_0.MixPorts getMixPorts();
+    method public String getName();
+    method public audio.policy.configuration.V7_0.Routes getRoutes();
+    method public void setAttachedDevices(audio.policy.configuration.V7_0.AttachedDevices);
+    method public void setDefaultOutputDevice(String);
+    method public void setDevicePorts(audio.policy.configuration.V7_0.DevicePorts);
+    method public void setHalVersion(audio.policy.configuration.V7_0.HalVersion);
+    method public void setMixPorts(audio.policy.configuration.V7_0.MixPorts);
+    method public void setName(String);
+    method public void setRoutes(audio.policy.configuration.V7_0.Routes);
+  }
+
+  public class Profile {
+    ctor public Profile();
+    method public java.util.List<audio.policy.configuration.V7_0.AudioChannelMask> getChannelMasks();
+    method public String getFormat();
+    method public String getName();
+    method public java.util.List<java.math.BigInteger> getSamplingRates();
+    method public void setChannelMasks(java.util.List<audio.policy.configuration.V7_0.AudioChannelMask>);
+    method public void setFormat(String);
+    method public void setName(String);
+    method public void setSamplingRates(java.util.List<java.math.BigInteger>);
+  }
+
+  public class Reference {
+    ctor public Reference();
+    method public String getName();
+    method public java.util.List<java.lang.String> getPoint();
+    method public void setName(String);
+  }
+
+  public enum Role {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.Role sink;
+    enum_constant public static final audio.policy.configuration.V7_0.Role source;
+  }
+
+  public class Routes {
+    ctor public Routes();
+    method public java.util.List<audio.policy.configuration.V7_0.Routes.Route> getRoute();
+  }
+
+  public static class Routes.Route {
+    ctor public Routes.Route();
+    method public String getSink();
+    method public String getSources();
+    method public audio.policy.configuration.V7_0.MixType getType();
+    method public void setSink(String);
+    method public void setSources(String);
+    method public void setType(audio.policy.configuration.V7_0.MixType);
+  }
+
+  public class SurroundFormats {
+    ctor public SurroundFormats();
+    method public java.util.List<audio.policy.configuration.V7_0.SurroundFormats.Format> getFormat();
+  }
+
+  public static class SurroundFormats.Format {
+    ctor public SurroundFormats.Format();
+    method public audio.policy.configuration.V7_0.AudioFormat getName();
+    method public java.util.List<audio.policy.configuration.V7_0.AudioFormat> getSubformats();
+    method public void setName(audio.policy.configuration.V7_0.AudioFormat);
+    method public void setSubformats(java.util.List<audio.policy.configuration.V7_0.AudioFormat>);
+  }
+
+  public class SurroundSound {
+    ctor public SurroundSound();
+    method public audio.policy.configuration.V7_0.SurroundFormats getFormats();
+    method public void setFormats(audio.policy.configuration.V7_0.SurroundFormats);
+  }
+
+  public enum Version {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.Version _1_0;
+  }
+
+  public class Volume {
+    ctor public Volume();
+    method public audio.policy.configuration.V7_0.DeviceCategory getDeviceCategory();
+    method public java.util.List<java.lang.String> getPoint();
+    method public String getRef();
+    method public audio.policy.configuration.V7_0.AudioStreamType getStream();
+    method public void setDeviceCategory(audio.policy.configuration.V7_0.DeviceCategory);
+    method public void setRef(String);
+    method public void setStream(audio.policy.configuration.V7_0.AudioStreamType);
+  }
+
+  public class Volumes {
+    ctor public Volumes();
+    method public java.util.List<audio.policy.configuration.V7_0.Reference> getReference();
+    method public java.util.List<audio.policy.configuration.V7_0.Volume> getVolume();
+  }
+
+  public class XmlParser {
+    ctor public XmlParser();
+    method public static audio.policy.configuration.V7_0.AudioPolicyConfiguration read(java.io.InputStream) throws javax.xml.datatype.DatatypeConfigurationException, java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static String readText(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static void skip(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+  }
+
+}
+
diff --git a/audio/7.0/config/api/last_current.txt b/audio/7.0/config/api/last_current.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/7.0/config/api/last_current.txt
diff --git a/audio/7.0/config/api/last_removed.txt b/audio/7.0/config/api/last_removed.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/7.0/config/api/last_removed.txt
diff --git a/audio/7.0/config/api/removed.txt b/audio/7.0/config/api/removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/audio/7.0/config/api/removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/audio/7.0/config/audio_policy_configuration.xsd b/audio/7.0/config/audio_policy_configuration.xsd
new file mode 100644
index 0000000..4555a88
--- /dev/null
+++ b/audio/7.0/config/audio_policy_configuration.xsd
@@ -0,0 +1,748 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+
+         Licensed under the Apache License, Version 2.0 (the "License");
+         you may not use this file except in compliance with the License.
+         You may obtain a copy of the License at
+
+                    http://www.apache.org/licenses/LICENSE-2.0
+
+         Unless required by applicable law or agreed to in writing, software
+         distributed under the License is distributed on an "AS IS" BASIS,
+         WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+         See the License for the specific language governing permissions and
+         limitations under the License.
+-->
+<xs:schema version="2.0"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified"
+           xmlns:xs="http://www.w3.org/2001/XMLSchema">
+    <!-- List the config versions supported by audio policy. -->
+    <xs:simpleType name="version">
+        <xs:restriction base="xs:decimal">
+            <xs:enumeration value="1.0"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="halVersion">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Version of the interface the hal implements. Note that this
+                relates to legacy HAL API versions since HIDL APIs are versioned
+                using other mechanisms.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:decimal">
+            <!-- List of HAL versions supported by the framework. -->
+            <xs:enumeration value="2.0"/>
+            <xs:enumeration value="3.0"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:element name="audioPolicyConfiguration">
+        <xs:complexType>
+            <xs:sequence>
+                <xs:element name="globalConfiguration" type="globalConfiguration"/>
+                <xs:element name="modules" type="modules" maxOccurs="unbounded"/>
+                <xs:element name="volumes" type="volumes" maxOccurs="unbounded"/>
+                <xs:element name="surroundSound" type="surroundSound" minOccurs="0" />
+            </xs:sequence>
+            <xs:attribute name="version" type="version"/>
+        </xs:complexType>
+        <xs:key name="moduleNameKey">
+            <xs:selector xpath="modules/module"/>
+            <xs:field xpath="@name"/>
+        </xs:key>
+        <xs:unique name="volumeTargetUniqueness">
+            <xs:selector xpath="volumes/volume"/>
+            <xs:field xpath="@stream"/>
+            <xs:field xpath="@deviceCategory"/>
+        </xs:unique>
+        <xs:key name="volumeCurveNameKey">
+            <xs:selector xpath="volumes/reference"/>
+            <xs:field xpath="@name"/>
+        </xs:key>
+        <xs:keyref name="volumeCurveRef" refer="volumeCurveNameKey">
+            <xs:selector xpath="volumes/volume"/>
+            <xs:field xpath="@ref"/>
+        </xs:keyref>
+    </xs:element>
+    <xs:complexType name="globalConfiguration">
+        <xs:attribute name="speaker_drc_enabled" type="xs:boolean" use="required"/>
+        <xs:attribute name="call_screen_mode_supported" type="xs:boolean" use="optional"/>
+        <xs:attribute name="engine_library" type="engineSuffix" use="optional"/>
+    </xs:complexType>
+    <xs:complexType name="modules">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                There should be one section per audio HW module present on the platform.
+                Each <module/> contains two mandatory tags: “halVersion” and “name”.
+                The module "name" is the same as in previous .conf file.
+                Each module must contain the following sections:
+                 - <devicePorts/>: a list of device descriptors for all
+                   input and output devices accessible via this module.
+                   This contains both permanently attached devices and removable devices.
+                 - <mixPorts/>: listing all output and input streams exposed by the audio HAL
+                 - <routes/>: list of possible connections between input
+                   and output devices or between stream and devices.
+                   A <route/> is defined by a set of 3 attributes:
+                        -"type": mux|mix means all sources are mutual exclusive (mux) or can be mixed (mix)
+                        -"sink": the sink involved in this route
+                        -"sources": all the sources than can be connected to the sink via this route
+                 - <attachedDevices/>: permanently attached devices.
+                   The attachedDevices section is a list of devices names.
+                   Their names correspond to device names defined in "devicePorts" section.
+                 - <defaultOutputDevice/> is the device to be used when no policy rule applies
+            </xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="module" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="attachedDevices" type="attachedDevices" minOccurs="0">
+                            <xs:unique name="attachedDevicesUniqueness">
+                                <xs:selector xpath="item"/>
+                                <xs:field xpath="."/>
+                            </xs:unique>
+                        </xs:element>
+                        <xs:element name="defaultOutputDevice" type="xs:token" minOccurs="0"/>
+                        <xs:element name="mixPorts" type="mixPorts" minOccurs="0"/>
+                        <xs:element name="devicePorts" type="devicePorts" minOccurs="0"/>
+                        <xs:element name="routes" type="routes" minOccurs="0"/>
+                    </xs:sequence>
+                    <xs:attribute name="name" type="xs:string" use="required"/>
+                    <xs:attribute name="halVersion" type="halVersion" use="required"/>
+                </xs:complexType>
+                <xs:unique name="mixPortNameUniqueness">
+                    <xs:selector xpath="mixPorts/mixPort"/>
+                    <xs:field xpath="@name"/>
+                </xs:unique>
+                <xs:key name="devicePortNameKey">
+                    <xs:selector xpath="devicePorts/devicePort"/>
+                    <xs:field xpath="@tagName"/>
+                </xs:key>
+                <xs:unique name="devicePortUniqueness">
+                    <xs:selector xpath="devicePorts/devicePort"/>
+                    <xs:field xpath="@type"/>
+                    <xs:field xpath="@address"/>
+                </xs:unique>
+                <xs:keyref name="defaultOutputDeviceRef" refer="devicePortNameKey">
+                    <xs:selector xpath="defaultOutputDevice"/>
+                    <xs:field xpath="."/>
+                </xs:keyref>
+                <xs:keyref name="attachedDeviceRef" refer="devicePortNameKey">
+                    <xs:selector xpath="attachedDevices/item"/>
+                    <xs:field xpath="."/>
+                </xs:keyref>
+                <!-- The following 3 constraints try to make sure each sink port
+                     is reference in one an only one route. -->
+                <xs:key name="routeSinkKey">
+                    <!-- predicate [@type='sink'] does not work in xsd 1.0 -->
+                    <xs:selector xpath="devicePorts/devicePort|mixPorts/mixPort"/>
+                    <xs:field xpath="@tagName|@name"/>
+                </xs:key>
+                <xs:keyref name="routeSinkRef" refer="routeSinkKey">
+                    <xs:selector xpath="routes/route"/>
+                    <xs:field xpath="@sink"/>
+                </xs:keyref>
+                <xs:unique name="routeUniqueness">
+                    <xs:selector xpath="routes/route"/>
+                    <xs:field xpath="@sink"/>
+                </xs:unique>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="attachedDevices">
+        <xs:sequence>
+            <xs:element name="item" type="xs:token" minOccurs="0" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="audioInOutFlags">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                "|" separated list of audio_output_flags_t or audio_input_flags_t.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:pattern value="|[_A-Z]+(\|[_A-Z]+)*"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="role">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="sink"/>
+            <xs:enumeration value="source"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="mixPorts">
+        <xs:sequence>
+            <xs:element name="mixPort" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="profile" type="profile" minOccurs="0" maxOccurs="unbounded"/>
+                        <xs:element name="gains" type="gains" minOccurs="0"/>
+                    </xs:sequence>
+                    <xs:attribute name="name" type="xs:token" use="required"/>
+                    <xs:attribute name="role" type="role" use="required"/>
+                    <xs:attribute name="flags" type="audioInOutFlags"/>
+                    <xs:attribute name="maxOpenCount" type="xs:unsignedInt"/>
+                    <xs:attribute name="maxActiveCount" type="xs:unsignedInt"/>
+                    <xs:attribute name="preferredUsage" type="audioUsageList">
+                        <xs:annotation>
+                            <xs:documentation xml:lang="en">
+                                When choosing the mixPort of an audio track, the audioPolicy
+                                first considers the mixPorts with a preferredUsage including
+                                the track AudioUsage preferred .
+                                If non support the track format, the other mixPorts are considered.
+                                Eg: a <mixPort preferredUsage="AUDIO_USAGE_MEDIA" /> will receive
+                                    the audio of all apps playing with a MEDIA usage.
+                                    It may receive audio from ALARM if there are no audio compatible
+                                    <mixPort preferredUsage="AUDIO_USAGE_ALARM" />.
+                             </xs:documentation>
+                        </xs:annotation>
+                    </xs:attribute>
+                </xs:complexType>
+                <xs:unique name="mixPortProfileUniqueness">
+                    <xs:selector xpath="profile"/>
+                    <xs:field xpath="format"/>
+                    <xs:field xpath="samplingRate"/>
+                    <xs:field xpath="channelMasks"/>
+                </xs:unique>
+                <xs:unique name="mixPortGainUniqueness">
+                    <xs:selector xpath="gains/gain"/>
+                    <xs:field xpath="@name"/>
+                </xs:unique>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="audioDevice">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_DEVICE_NONE"/>
+
+            <xs:enumeration value="AUDIO_DEVICE_OUT_EARPIECE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADPHONE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_USB_ACCESSORY"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_USB_DEVICE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_TELEPHONY_TX"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_LINE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI_ARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_SPDIF"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_FM"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_LINE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER_SAFE"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_IP"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BUS"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_PROXY"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_USB_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_HEARING_AID"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_ECHO_CANCELLER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_DEFAULT"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_STUB"/>
+
+            <xs:enumeration value="AUDIO_DEVICE_IN_COMMUNICATION"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_AMBIENT"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BUILTIN_MIC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_WIRED_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_AUX_DIGITAL"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_TELEPHONY_RX"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BACK_MIC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_USB_ACCESSORY"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_USB_DEVICE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_FM_TUNER"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_TV_TUNER"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_LINE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_SPDIF"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_A2DP"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_LOOPBACK"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_IP"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BUS"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_PROXY"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_USB_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_BLE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_HDMI_ARC"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_ECHO_REFERENCE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_DEFAULT"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_STUB"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="vendorExtension">
+        <!-- Vendor extension names must be prefixed by "VX_" to distinguish them from AOSP values.
+             Vendor are encouraged to namespace their module names to avoid conflicts.
+             Example for an hypothetical Google virtual reality device:
+                <devicePort tagName="VR" type="VX_GOOGLE_VR" role="sink">
+        -->
+        <xs:restriction base="xs:string">
+            <xs:pattern value="VX_[_a-zA-Z0-9]+"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="extendableAudioDevice">
+        <xs:union memberTypes="audioDevice vendorExtension"/>
+    </xs:simpleType>
+    <xs:simpleType name="audioFormat">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_FORMAT_DEFAULT" />
+            <xs:enumeration value="AUDIO_FORMAT_PCM_16_BIT" />
+            <xs:enumeration value="AUDIO_FORMAT_PCM_8_BIT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_32_BIT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_8_24_BIT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_FLOAT"/>
+            <xs:enumeration value="AUDIO_FORMAT_PCM_24_BIT_PACKED"/>
+            <xs:enumeration value="AUDIO_FORMAT_MP3"/>
+            <xs:enumeration value="AUDIO_FORMAT_AMR_NB"/>
+            <xs:enumeration value="AUDIO_FORMAT_AMR_WB"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_MAIN"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_SSR"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LTP"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_SCALABLE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ERLC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ELD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_MAIN"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SSR"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LTP"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SCALABLE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ERLC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ELD"/>
+            <xs:enumeration value="AUDIO_FORMAT_VORBIS"/>
+            <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_OPUS"/>
+            <xs:enumeration value="AUDIO_FORMAT_AC3"/>
+            <xs:enumeration value="AUDIO_FORMAT_E_AC3"/>
+            <xs:enumeration value="AUDIO_FORMAT_DTS"/>
+            <xs:enumeration value="AUDIO_FORMAT_DTS_HD"/>
+            <xs:enumeration value="AUDIO_FORMAT_IEC61937"/>
+            <xs:enumeration value="AUDIO_FORMAT_DOLBY_TRUEHD"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRC"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRCB"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRCWB"/>
+            <xs:enumeration value="AUDIO_FORMAT_EVRCNW"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADIF"/>
+            <xs:enumeration value="AUDIO_FORMAT_WMA"/>
+            <xs:enumeration value="AUDIO_FORMAT_WMA_PRO"/>
+            <xs:enumeration value="AUDIO_FORMAT_AMR_WB_PLUS"/>
+            <xs:enumeration value="AUDIO_FORMAT_MP2"/>
+            <xs:enumeration value="AUDIO_FORMAT_QCELP"/>
+            <xs:enumeration value="AUDIO_FORMAT_DSD"/>
+            <xs:enumeration value="AUDIO_FORMAT_FLAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_ALAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_APE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS"/>
+            <xs:enumeration value="AUDIO_FORMAT_SBC"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX_HD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AC4"/>
+            <xs:enumeration value="AUDIO_FORMAT_LDAC"/>
+            <xs:enumeration value="AUDIO_FORMAT_E_AC3_JOC"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT_1_0"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT_2_0"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT_2_1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_XHE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_XHE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_CELT"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX_ADAPTIVE"/>
+            <xs:enumeration value="AUDIO_FORMAT_LHDC"/>
+            <xs:enumeration value="AUDIO_FORMAT_LHDC_LL"/>
+            <xs:enumeration value="AUDIO_FORMAT_APTX_TWSP"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="extendableAudioFormat">
+        <xs:union memberTypes="audioFormat vendorExtension"/>
+    </xs:simpleType>
+    <xs:simpleType name="audioUsage">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio usage specifies the intended use case for the sound being played.
+                Please consult frameworks/base/media/java/android/media/AudioAttributes.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_USAGE_UNKNOWN" />
+            <xs:enumeration value="AUDIO_USAGE_MEDIA" />
+            <xs:enumeration value="AUDIO_USAGE_VOICE_COMMUNICATION" />
+            <xs:enumeration value="AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING" />
+            <xs:enumeration value="AUDIO_USAGE_ALARM" />
+            <xs:enumeration value="AUDIO_USAGE_NOTIFICATION" />
+            <xs:enumeration value="AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANCE_SONIFICATION" />
+            <xs:enumeration value="AUDIO_USAGE_GAME" />
+            <xs:enumeration value="AUDIO_USAGE_VIRTUAL_SOURCE" />
+            <xs:enumeration value="AUDIO_USAGE_ASSISTANT" />
+            <xs:enumeration value="AUDIO_USAGE_CALL_ASSISTANT" />
+            <xs:enumeration value="AUDIO_USAGE_EMERGENCY" />
+            <xs:enumeration value="AUDIO_USAGE_SAFETY" />
+            <xs:enumeration value="AUDIO_USAGE_VEHICLE_STATUS" />
+            <xs:enumeration value="AUDIO_USAGE_ANNOUNCEMENT" />
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioUsageList">
+        <xs:list itemType="audioUsage"/>
+    </xs:simpleType>
+    <xs:simpleType name="audioContentType">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio content type expresses the general category of the content.
+                Please consult frameworks/base/media/java/android/media/AudioAttributes.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_UNKNOWN"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_SPEECH"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_MUSIC"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_MOVIE"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_SONIFICATION"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="samplingRates">
+        <xs:list itemType="xs:nonNegativeInteger" />
+    </xs:simpleType>
+    <xs:simpleType name="audioChannelMask">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio channel mask specifies presence of particular channels.
+                There are two representations:
+                - representation position (traditional discrete channel specification,
+                  e.g. "left", "right");
+                - indexed (this is similar to "tracks" in audio mixing, channels
+                  are represented using numbers).
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD_SIDE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_SURROUND"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_PENTA"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1_SIDE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_6POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_A"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_STEREO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_FRONT_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_2POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_2POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_3POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_3POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_5POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_CALL_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_3"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_5"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_7"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_8"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_9"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_10"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_11"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_12"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_13"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_14"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_15"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_16"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_17"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_18"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_19"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_20"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_21"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_22"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_23"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_24"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="channelMasks">
+        <xs:list itemType="audioChannelMask" />
+    </xs:simpleType>
+    <xs:complexType name="profile">
+        <xs:attribute name="name" type="xs:token" use="optional"/>
+        <xs:attribute name="format" type="extendableAudioFormat" use="optional"/>
+        <xs:attribute name="samplingRates" type="samplingRates" use="optional"/>
+        <xs:attribute name="channelMasks" type="channelMasks" use="optional"/>
+    </xs:complexType>
+    <xs:simpleType name="gainMode">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_GAIN_MODE_JOINT"/>
+            <xs:enumeration value="AUDIO_GAIN_MODE_CHANNELS"/>
+            <xs:enumeration value="AUDIO_GAIN_MODE_RAMP"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="gains">
+        <xs:sequence>
+            <xs:element name="gain" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:attribute name="name" type="xs:token" use="required"/>
+                    <xs:attribute name="mode" type="gainMode" use="required"/>
+                    <xs:attribute name="channel_mask" type="audioChannelMask" use="optional"/>
+                    <xs:attribute name="minValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="maxValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="defaultValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="stepValueMB" type="xs:int" use="optional"/>
+                    <xs:attribute name="minRampMs" type="xs:int" use="optional"/>
+                    <xs:attribute name="maxRampMs" type="xs:int" use="optional"/>
+                    <xs:attribute name="useForVolume" type="xs:boolean" use="optional"/>
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="devicePorts">
+        <xs:sequence>
+            <xs:element name="devicePort" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="profile" type="profile" minOccurs="0" maxOccurs="unbounded"/>
+                        <xs:element name="gains" type="gains" minOccurs="0"/>
+                    </xs:sequence>
+                    <xs:attribute name="tagName" type="xs:token" use="required"/>
+                    <xs:attribute name="type" type="extendableAudioDevice" use="required"/>
+                    <xs:attribute name="role" type="role" use="required"/>
+                    <xs:attribute name="address" type="xs:string" use="optional" default=""/>
+                    <!-- Note that XSD 1.0 can not check that a type only has one default. -->
+                    <xs:attribute name="default" type="xs:boolean" use="optional">
+                        <xs:annotation>
+                            <xs:documentation xml:lang="en">
+                                The default device will be used if multiple have the same type
+                                and no explicit route request exists for a specific device of
+                                that type.
+                            </xs:documentation>
+                        </xs:annotation>
+                    </xs:attribute>
+                    <xs:attribute name="encodedFormats" type="audioFormatsList" use="optional"
+                                  default="" />
+                </xs:complexType>
+                <xs:unique name="devicePortProfileUniqueness">
+                    <xs:selector xpath="profile"/>
+                    <xs:field xpath="format"/>
+                    <xs:field xpath="samplingRate"/>
+                    <xs:field xpath="channelMasks"/>
+                </xs:unique>
+                <xs:unique name="devicePortGainUniqueness">
+                    <xs:selector xpath="gains/gain"/>
+                    <xs:field xpath="@name"/>
+                </xs:unique>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="mixType">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="mix"/>
+            <xs:enumeration value="mux"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="routes">
+        <xs:sequence>
+            <xs:element name="route" minOccurs="0" maxOccurs="unbounded">
+                <xs:annotation>
+                    <xs:documentation xml:lang="en">
+                        List all available sources for a given sink.
+                    </xs:documentation>
+                </xs:annotation>
+                <xs:complexType>
+                    <xs:attribute name="type" type="mixType" use="required"/>
+                    <xs:attribute name="sink" type="xs:string" use="required"/>
+                    <xs:attribute name="sources" type="xs:string" use="required"/>
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="volumes">
+        <xs:sequence>
+            <xs:element name="volume" type="volume" minOccurs="0" maxOccurs="unbounded"/>
+            <xs:element name="reference" type="reference" minOccurs="0" maxOccurs="unbounded">
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <!-- TODO: Always require a ref for better xsd validations.
+               Currently a volume could have no points nor ref
+               as it can not be forbidden by xsd 1.0.-->
+    <xs:simpleType name="volumePoint">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Comma separated pair of number.
+                The fist one is the framework level (between 0 and 100).
+                The second one is the volume to send to the HAL.
+                The framework will interpolate volumes not specified.
+                Their MUST be at least 2 points specified.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:pattern value="([0-9]{1,2}|100),-?[0-9]+"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioStreamType">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio stream type describing the intended use case of a stream.
+                Please consult frameworks/base/media/java/android/media/AudioSystem.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_STREAM_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_STREAM_SYSTEM"/>
+            <xs:enumeration value="AUDIO_STREAM_RING"/>
+            <xs:enumeration value="AUDIO_STREAM_MUSIC"/>
+            <xs:enumeration value="AUDIO_STREAM_ALARM"/>
+            <xs:enumeration value="AUDIO_STREAM_NOTIFICATION"/>
+            <xs:enumeration value="AUDIO_STREAM_BLUETOOTH_SCO"/>
+            <xs:enumeration value="AUDIO_STREAM_ENFORCED_AUDIBLE"/>
+            <xs:enumeration value="AUDIO_STREAM_DTMF"/>
+            <xs:enumeration value="AUDIO_STREAM_TTS"/>
+            <xs:enumeration value="AUDIO_STREAM_ACCESSIBILITY"/>
+            <xs:enumeration value="AUDIO_STREAM_ASSISTANT"/>
+            <xs:enumeration value="AUDIO_STREAM_REROUTING"/>
+            <xs:enumeration value="AUDIO_STREAM_PATCH"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="audioSource">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                An audio source defines the intended use case for the sound being recorded.
+                Please consult frameworks/base/media/java/android/media/MediaRecorder.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_SOURCE_DEFAULT"/>
+            <xs:enumeration value="AUDIO_SOURCE_MIC"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_UPLINK"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_DOWNLINK"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_SOURCE_CAMCORDER"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_RECOGNITION"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_COMMUNICATION"/>
+            <xs:enumeration value="AUDIO_SOURCE_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_SOURCE_UNPROCESSED"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_PERFORMANCE"/>
+            <xs:enumeration value="AUDIO_SOURCE_ECHO_REFERENCE"/>
+            <xs:enumeration value="AUDIO_SOURCE_FM_TUNER"/>
+            <xs:enumeration value="AUDIO_SOURCE_HOTWORD"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <!-- Enum values of device_category from Volume.h. -->
+    <xs:simpleType name="deviceCategory">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="DEVICE_CATEGORY_HEADSET"/>
+            <xs:enumeration value="DEVICE_CATEGORY_SPEAKER"/>
+            <xs:enumeration value="DEVICE_CATEGORY_EARPIECE"/>
+            <xs:enumeration value="DEVICE_CATEGORY_EXT_MEDIA"/>
+            <xs:enumeration value="DEVICE_CATEGORY_HEARING_AID"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="volume">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Volume section defines a volume curve for a given use case and device category.
+                It contains a list of points of this curve expressing the attenuation in Millibels
+                for a given volume index from 0 to 100.
+                <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER">
+                    <point>0,-9600</point>
+                    <point>100,0</point>
+                </volume>
+
+                It may also reference a reference/@name to avoid duplicating curves.
+                <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER"
+                        ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+                <reference name="DEFAULT_MEDIA_VOLUME_CURVE">
+                    <point>0,-9600</point>
+                    <point>100,0</point>
+                </reference>
+            </xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="point" type="volumePoint" minOccurs="0" maxOccurs="unbounded"/>
+        </xs:sequence>
+        <xs:attribute name="stream" type="audioStreamType"/>
+        <xs:attribute name="deviceCategory" type="deviceCategory"/>
+        <xs:attribute name="ref" type="xs:token" use="optional"/>
+    </xs:complexType>
+    <xs:complexType name="reference">
+        <xs:sequence>
+            <xs:element name="point" type="volumePoint" minOccurs="2" maxOccurs="unbounded"/>
+        </xs:sequence>
+        <xs:attribute name="name" type="xs:token" use="required"/>
+    </xs:complexType>
+    <xs:complexType name="surroundSound">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Surround Sound section provides configuration related to handling of
+                multi-channel formats.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="formats" type="surroundFormats"/>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="audioFormatsList">
+        <xs:list itemType="audioFormat" />
+    </xs:simpleType>
+    <xs:complexType name="surroundFormats">
+        <xs:sequence>
+            <xs:element name="format" minOccurs="0" maxOccurs="unbounded">
+                <xs:complexType>
+                    <xs:attribute name="name" type="audioFormat" use="required"/>
+                    <xs:attribute name="subformats" type="audioFormatsList" />
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:simpleType name="engineSuffix">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="default"/>
+            <xs:enumeration value="configurable"/>
+        </xs:restriction>
+    </xs:simpleType>
+</xs:schema>
diff --git a/audio/7.0/config/update_audio_policy_config.sh b/audio/7.0/config/update_audio_policy_config.sh
new file mode 100755
index 0000000..8714b5f
--- /dev/null
+++ b/audio/7.0/config/update_audio_policy_config.sh
@@ -0,0 +1,159 @@
+#!/bin/bash
+
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is used to update audio policy configuration files
+# to comply with the updated audio_policy_configuration.xsd from V7.0.
+#
+# The main difference is the separator used in lists for attributes.
+# Since the XML Schema Definition standard only allows space to be
+# used as a separator (see https://www.w3.org/TR/xmlschema11-2/#list-datatypes)
+# the previous versions used a regular expression to validate lists
+# in attribute values. E.g. the channel masks were validated using
+# the following regexp: [_A-Z][_A-Z0-9]*(,[_A-Z][_A-Z0-9]*)*
+# This has an obvious drawback of missing typos in the config file.
+#
+# The V7.0 has shifted to defining most of the frequently changed
+# types in the XSD schema only. This allows for verifying all the values
+# in lists, but in order to comply with XML Schema requirements
+# list elements must be separated by space.
+#
+# Since the APM config files typically use include directives,
+# the script must be pointed to the main APM config file and will
+# take care all the included files automatically.
+# If the included file is a shared version from 'frameworks/av',
+# instead of updating it the script checks if there is a newer
+# version with the corresponding name suffix (e.g.
+# 'a2dp_audio_policy_configuration_7_0.xml') and updates the include
+# path instead.
+
+set -euo pipefail
+
+if (echo "$@" | grep -qe -h); then
+    echo "This script will update Audio Policy Manager config file"
+    echo "to the format required by V7.0 XSD schema from a previous"
+    echo "version."
+    echo
+    echo "USAGE: $0 [APM_XML_FILE] [OLD_VERSION]"
+    echo "       APM_XML_FILE specifies the path to audio_policy_configuration.xml"
+    echo "                    relative to Android repository root"
+    echo "       OLD_VERSION specifies the version of schema currently used"
+    echo
+    echo "Example: $0 device/generic/goldfish/audio/policy/audio_policy_configuration.xml 6.0"
+    exit
+fi
+readonly HAL_DIRECTORY=hardware/interfaces/audio
+readonly SHARED_CONFIGS_DIRECTORY=frameworks/av/services/audiopolicy/config
+readonly OLD_VERSION=${2:-$(ls ${ANDROID_BUILD_TOP}/${HAL_DIRECTORY} | grep -E '[0-9]+\.[0-9]+' |
+                                sort -n | tail -n1)}
+readonly NEW_VERSION=7.0
+readonly NEW_VERSION_UNDERSCORE=7_0
+
+readonly SOURCE_CONFIG=${ANDROID_BUILD_TOP}/$1
+
+# First, validate the input using the schema of the current version
+
+echo Validating the source against the $OLD_VERSION schema
+xmllint --noout --xinclude \
+        --nofixup-base-uris --path "$ANDROID_BUILD_TOP/$SHARED_CONFIGS_DIRECTORY" \
+        --schema ${ANDROID_BUILD_TOP}/${HAL_DIRECTORY}/${OLD_VERSION}/config/audio_policy_configuration.xsd \
+        ${SOURCE_CONFIG}
+if [ $? -ne 0 ]; then
+    echo
+    echo "Config file fails validation for the specified version $OLD_VERSION--unsafe to update"
+    exit 1
+fi
+
+# Find all the source files recursively
+
+SOURCE_FILES=${SOURCE_CONFIG}
+SHARED_FILES=
+findIncludes() {
+    local FILES_TO_CHECK=
+    for F in $1; do
+        local FOUND_INCLUDES=$(grep -Po '<xi:include href="\K[^"]+(?="\/>)' ${F})
+        for I in ${FOUND_INCLUDES}; do
+            SOURCE_FULL_PATH=$(dirname ${F})/${I}
+            SHARED_FULL_PATH=${ANDROID_BUILD_TOP}/${SHARED_CONFIGS_DIRECTORY}/${I}
+            if [ -f "$SOURCE_FULL_PATH" ]; then
+                # Device-specific file.
+                SOURCE_FILES+=$'\n'${SOURCE_FULL_PATH}
+                FILES_TO_CHECK+=$'\n'${SOURCE_FULL_PATH}
+            elif [ -f "$SHARED_FULL_PATH" ]; then
+                # Shared file from the frameworks repo.
+                SHARED_FILES+=$'\n'${I}
+                FILES_TO_CHECK+=$'\n'${SHARED_FULL_PATH}
+            else
+                echo
+                echo "Include file not found: $I"
+                exit 1
+            fi
+        done
+    done
+    if [ "$FILES_TO_CHECK" ]; then
+        findIncludes "$FILES_TO_CHECK"
+    fi
+}
+findIncludes ${SOURCE_FILES}
+
+echo "Will update $1 and included device-specific files in place."
+echo "Will update paths to shared included files."
+echo "Press Ctrl-C to cancel, Enter to continue"
+read
+
+updateFile() {
+    FILE=$1
+    ATTR=$2
+    SEPARATOR=$3
+    SRC_LINES=$(grep -nPo "$ATTR=\"[^\"]+\"" ${FILE} || true)
+    for S in $SRC_LINES; do
+        # Prepare instruction for 'sed' for in-place editing of specified line
+        R=$(echo ${S} | sed -e 's/^[0-9]\+:/\//' | sed -e "s/$SEPARATOR/ /g")
+        S=$(echo ${S} | sed -e 's/:/s\//')${R}/
+        echo ${S} | sed -i -f - ${FILE}
+    done
+}
+for F in $SOURCE_FILES; do
+    updateFile ${F} "channelMasks" ","
+    updateFile ${F} "samplingRates" ","
+done;
+
+updateIncludes() {
+    FILE=$1
+    for I in $SHARED_FILES; do
+        NEW_VERSION_I=${I%.*}_${NEW_VERSION_UNDERSCORE}.${I##*.}
+        if [ -e "$ANDROID_BUILD_TOP/$SHARED_CONFIGS_DIRECTORY/$NEW_VERSION_I" ]; then
+            echo "s/$I/$NEW_VERSION_I/g" | sed -i -f - ${FILE}
+        fi
+    done
+}
+for F in $SOURCE_FILES; do
+    updateIncludes ${F}
+done
+
+# Validate the results against the new schema
+
+echo Validating the result against the $NEW_VERSION schema
+xmllint --noout --xinclude \
+        --nofixup-base-uris --path "$ANDROID_BUILD_TOP/$SHARED_CONFIGS_DIRECTORY" \
+        --schema ${ANDROID_BUILD_TOP}/${HAL_DIRECTORY}/${NEW_VERSION}/config/audio_policy_configuration.xsd \
+        ${SOURCE_CONFIG}
+if [ $? -ne 0 ]; then
+    echo
+    echo "Config file fails validation for the specified version $NEW_VERSION--please check the changes"
+    exit 1
+fi
+echo
+echo "Please check the diff and update path to APM shared files in the device makefile!"
diff --git a/audio/7.0/types.hal b/audio/7.0/types.hal
new file mode 100644
index 0000000..15ca492
--- /dev/null
+++ b/audio/7.0/types.hal
@@ -0,0 +1,412 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio@7.0;
+
+import android.hardware.audio.common@7.0;
+
+enum Result : int32_t {
+    OK,
+    NOT_INITIALIZED,
+    INVALID_ARGUMENTS,
+    INVALID_STATE,
+    /**
+     * Methods marked as "Optional method" must return this result value
+     * if the operation is not supported by HAL.
+     */
+    NOT_SUPPORTED
+};
+
+@export(name="audio_drain_type_t", value_prefix="AUDIO_DRAIN_")
+enum AudioDrain : int32_t {
+    /** drain() returns when all data has been played. */
+    ALL,
+    /**
+     * drain() returns a short time before all data from the current track has
+     * been played to give time for gapless track switch.
+     */
+    EARLY_NOTIFY
+};
+
+/**
+ * A substitute for POSIX timespec.
+ */
+struct TimeSpec {
+    uint64_t tvSec;   // seconds
+    uint64_t tvNSec;  // nanoseconds
+};
+
+struct ParameterValue {
+    string key;
+    string value;
+};
+
+enum MmapBufferFlag : uint32_t {
+    NONE    = 0x0,
+    /**
+     * If the buffer can be securely shared to untrusted applications
+     * through the AAudio exclusive mode.
+     * Only set this flag if applications are restricted from accessing the
+     * memory surrounding the audio data buffer by a kernel mechanism.
+     * See Linux kernel's dma_buf.
+     */
+    APPLICATION_SHAREABLE    = 0x1,
+};
+
+/**
+ * Mmap buffer descriptor returned by IStream.createMmapBuffer().
+ * Used by streams opened in mmap mode.
+ */
+struct MmapBufferInfo {
+    /** Mmap memory buffer */
+    memory  sharedMemory;
+    /** Total buffer size in frames */
+    uint32_t bufferSizeFrames;
+    /** Transfer size granularity in frames */
+    uint32_t burstSizeFrames;
+    /** Attributes describing the buffer. */
+    bitfield<MmapBufferFlag> flags;
+};
+
+/**
+ * Mmap buffer read/write position returned by IStream.getMmapPosition().
+ * Used by streams opened in mmap mode.
+ */
+struct MmapPosition {
+    int64_t  timeNanoseconds; // time stamp in ns, CLOCK_MONOTONIC
+    int32_t  positionFrames;  // increasing 32 bit frame count reset when IStream.stop() is called
+};
+
+/**
+ * The message queue flags used to synchronize reads and writes from
+ * message queues used by StreamIn and StreamOut.
+ */
+enum MessageQueueFlagBits : uint32_t {
+    NOT_EMPTY = 1 << 0,
+    NOT_FULL = 1 << 1
+};
+
+/*
+ * Microphone information
+ *
+ */
+
+/**
+ * A 3D point used to represent position or orientation of a microphone.
+ *
+ * Position: Coordinates of the microphone's capsule, in meters, from the
+ * bottom-left-back corner of the bounding box of android device in natural
+ * orientation (PORTRAIT for phones, LANDSCAPE for tablets, tvs, etc).
+ * The orientation musth match the reported by the api Display.getRotation().
+ *
+ * Orientation: Normalized vector to signal the main orientation of the
+ * microphone's capsule. Magnitude = sqrt(x^2 + y^2 + z^2) = 1
+ */
+struct AudioMicrophoneCoordinate {
+    float x;
+    float y;
+    float z;
+};
+
+/**
+ * Enum to identify the type of channel mapping for active microphones.
+ * Used channels further identify if the microphone has any significative
+ * process (e.g. High Pass Filtering, dynamic compression)
+ * Simple processing as constant gain adjustment must be DIRECT.
+ */
+enum AudioMicrophoneChannelMapping : uint32_t {
+    UNUSED      = 0, /* Channel not used */
+    DIRECT      = 1, /* Channel used and signal not processed */
+    PROCESSED   = 2, /* Channel used and signal has some process */
+};
+
+/**
+ * Enum to identify locations of microphones in regards to the body of the
+ * android device.
+ */
+enum AudioMicrophoneLocation : uint32_t {
+    UNKNOWN             = 0,
+    MAINBODY            = 1,
+    MAINBODY_MOVABLE    = 2,
+    PERIPHERAL          = 3,
+};
+
+/**
+ * Identifier to help group related microphones together
+ * e.g. microphone arrays should belong to the same group
+ */
+typedef int32_t AudioMicrophoneGroup;
+
+/**
+ * Enum with standard polar patterns of microphones
+ */
+enum AudioMicrophoneDirectionality : uint32_t {
+    UNKNOWN         = 0,
+    OMNI            = 1,
+    BI_DIRECTIONAL  = 2,
+    CARDIOID        = 3,
+    HYPER_CARDIOID  = 4,
+    SUPER_CARDIOID  = 5,
+};
+
+/**
+ * A (frequency, level) pair. Used to represent frequency response.
+ */
+struct AudioFrequencyResponsePoint {
+    /** In Hz */
+    float frequency;
+    /** In dB */
+    float level;
+};
+
+/**
+ * Structure used by the HAL to describe microphone's characteristics
+ * Used by StreamIn and Device
+ */
+struct MicrophoneInfo {
+    /** Unique alphanumeric id for microphone. Guaranteed to be the same
+     * even after rebooting.
+     */
+    string                                  deviceId;
+    /**
+     * Device specific information
+     */
+    DeviceAddress                           deviceAddress;
+    /** Each element of the vector must describe the channel with the same
+     *  index.
+     */
+    vec<AudioMicrophoneChannelMapping>      channelMapping;
+    /** Location of the microphone in regard to the body of the device */
+    AudioMicrophoneLocation                 location;
+    /** Identifier to help group related microphones together
+     *  e.g. microphone arrays should belong to the same group
+     */
+    AudioMicrophoneGroup                    group;
+    /** Index of this microphone within the group.
+     *  (group, index) must be unique within the same device.
+     */
+    uint32_t                                indexInTheGroup;
+    /** Level in dBFS produced by a 1000 Hz tone at 94 dB SPL */
+    float                                   sensitivity;
+    /** Level in dB of the max SPL supported at 1000 Hz */
+    float                                   maxSpl;
+    /** Level in dB of the min SPL supported at 1000 Hz */
+    float                                   minSpl;
+    /** Standard polar pattern of the microphone */
+    AudioMicrophoneDirectionality           directionality;
+    /** Vector with ordered frequency responses (from low to high frequencies)
+     *  with the frequency response of the microphone.
+     *  Levels are in dB, relative to level at 1000 Hz
+     */
+    vec<AudioFrequencyResponsePoint>        frequencyResponse;
+    /** Position of the microphone's capsule in meters, from the
+     *  bottom-left-back corner of the bounding box of device.
+     */
+    AudioMicrophoneCoordinate               position;
+    /** Normalized point to signal the main orientation of the microphone's
+     *  capsule. sqrt(x^2 + y^2 + z^2) = 1
+     */
+    AudioMicrophoneCoordinate               orientation;
+};
+
+/**
+ * Constants used by the HAL to determine how to select microphones and process those inputs in
+ * order to optimize for capture in the specified direction.
+ *
+ * MicrophoneDirection Constants are defined in MicrophoneDirection.java.
+ */
+@export(name="audio_microphone_direction_t", value_prefix="MIC_DIRECTION_")
+enum MicrophoneDirection : int32_t {
+    /**
+     * Don't do any directionality processing of the activated microphone(s).
+     */
+    UNSPECIFIED = 0,
+    /**
+     * Optimize capture for audio coming from the screen-side of the device.
+     */
+    FRONT = 1,
+    /**
+     * Optimize capture for audio coming from the side of the device opposite the screen.
+     */
+    BACK = 2,
+    /**
+     * Optimize capture for audio coming from an off-device microphone.
+     */
+    EXTERNAL = 3,
+};
+
+
+/* Dual Mono handling is used when a stereo audio stream
+ * contains separate audio content on the left and right channels.
+ * Such information about the content of the stream may be found, for example,
+ * in ITU T-REC-J.94-201610 A.6.2.3 Component descriptor.
+ */
+@export(name="audio_dual_mono_mode_t", value_prefix="AUDIO_DUAL_MONO_MODE_")
+enum DualMonoMode : int32_t {
+    // Need to be in sync with DUAL_MONO_MODE* constants in
+    // frameworks/base/media/java/android/media/AudioTrack.java
+    /**
+     * Disable any Dual Mono presentation effect.
+     *
+     */
+    OFF = 0,
+    /**
+     * This mode indicates that a stereo stream should be presented
+     * with the left and right audio channels blended together
+     * and delivered to both channels.
+     *
+     * Behavior for non-stereo streams is implementation defined.
+     * A suggested guideline is that the left-right stereo symmetric
+     * channels are pairwise blended, the other channels such as center
+     * are left alone.
+     */
+    LR = 1,
+    /**
+     * This mode indicates that a stereo stream should be presented
+     * with the left audio channel replicated into the right audio channel.
+     *
+     * Behavior for non-stereo streams is implementation defined.
+     * A suggested guideline is that all channels with left-right
+     * stereo symmetry will have the left channel position replicated
+     * into the right channel position. The center channels (with no
+     * left/right symmetry) or unbalanced channels are left alone.
+     */
+    LL = 2,
+    /**
+     * This mode indicates that a stereo stream should be presented
+     * with the right audio channel replicated into the left audio channel.
+     *
+     * Behavior for non-stereo streams is implementation defined.
+     * A suggested guideline is that all channels with left-right
+     * stereo symmetry will have the right channel position replicated
+     * into the left channel position. The center channels (with no
+     * left/right symmetry) or unbalanced channels are left alone.
+     */
+    RR = 3,
+};
+
+/**
+ * Algorithms used for timestretching (preserving pitch while playing audio
+ * content at different speed).
+ */
+@export(name="audio_timestretch_stretch_mode_t", value_prefix="AUDIO_TIMESTRETCH_STRETCH_")
+enum TimestretchMode : int32_t {
+    // Need to be in sync with AUDIO_STRETCH_MODE_* constants in
+    // frameworks/base/media/java/android/media/PlaybackParams.java
+    DEFAULT = 0,
+    /** Selects timestretch algorithm best suitable for voice (speech) content. */
+    VOICE = 1,
+};
+
+/**
+ * Behavior when the values for speed and / or pitch are out
+ * of applicable range.
+ */
+@export(name="audio_timestretch_fallback_mode_t", value_prefix="AUDIO_TIMESTRETCH_FALLBACK_")
+enum TimestretchFallbackMode : int32_t {
+    // Need to be in sync with AUDIO_FALLBACK_MODE_* constants in
+    // frameworks/base/media/java/android/media/PlaybackParams.java
+    /** Play silence for parameter values that are out of range. */
+    MUTE = 1,
+    /** Return an error while trying to set the parameters. */
+    FAIL = 2,
+};
+
+/**
+ * Parameters determining playback behavior. They are used to speed up or
+ * slow down playback and / or change the tonal frequency of the audio content
+ * (pitch).
+ */
+struct PlaybackRate {
+    /**
+     * Speed factor (multiplier). Normal speed has the value of 1.0f.
+     * Values less than 1.0f slow down playback, value greater than 1.0f
+     * speed it up.
+     */
+    float speed;
+    /**
+     * Pitch factor (multiplier). Setting pitch value to 1.0f together
+     * with changing playback speed preserves the pitch, this is often
+     * called "timestretching." Setting the pitch value equal to speed produces
+     * the same effect as playing audio content at different sampling rate.
+     */
+    float pitch;
+    /**
+     * Selects the algorithm used for timestretching (preserving pitch while
+     * playing audio at different speed).
+     */
+    TimestretchMode timestretchMode;
+    /**
+     * Selects the behavior when the specified values for speed and / or pitch
+     * are out of applicable range.
+     */
+    TimestretchFallbackMode fallbackMode;
+};
+
+/**
+ * The audio output flags serve two purposes:
+ *
+ *  - when an output stream is created they indicate its attributes;
+ *
+ *  - when present in an output profile descriptor listed for a particular audio
+ *    hardware module, they indicate that an output stream can be opened that
+ *    supports the attributes indicated by the flags.
+ */
+@export(name="audio_output_flags_t", value_prefix="AUDIO_OUTPUT_FLAG_")
+enum AudioOutputFlag : int32_t {
+    NONE    = 0x0, // no attributes
+    DIRECT  = 0x1, // this output directly connects a track
+                   // to one output stream: no software mixer
+    PRIMARY = 0x2, // this output is the primary output of the device. It is
+                   // unique and must be present. It is opened by default and
+                   // receives routing, audio mode and volume controls related
+                   // to voice calls.
+    FAST    = 0x4,    // output supports "fast tracks", defined elsewhere
+    DEEP_BUFFER      = 0x8,   // use deep audio buffers
+    COMPRESS_OFFLOAD = 0x10,  // offload playback of compressed streams to
+                              // hardware codec
+    NON_BLOCKING     = 0x20,  // use non-blocking write
+    HW_AV_SYNC = 0x40,   // output uses a hardware A/V sync
+    TTS        = 0x80,   // output for streams transmitted through speaker at a
+                         // sample rate high enough to accommodate lower-range
+                         // ultrasonic p/b
+    RAW        = 0x100,  // minimize signal processing
+    SYNC       = 0x200,  // synchronize I/O streams
+    IEC958_NONAUDIO = 0x400, // Audio stream contains compressed audio in SPDIF
+                             // data bursts, not PCM.
+    DIRECT_PCM = 0x2000,     // Audio stream containing PCM data that needs
+                             // to pass through compress path for DSP post proc.
+    MMAP_NOIRQ = 0x4000, // output operates in MMAP no IRQ mode.
+    VOIP_RX = 0x8000,    // preferred output for VoIP calls.
+    /** preferred output for call music */
+    INCALL_MUSIC = 0x10000,
+};
+
+/**
+ * The audio input flags are analogous to audio output flags.
+ */
+@export(name="audio_input_flags_t", value_prefix="AUDIO_INPUT_FLAG_")
+enum AudioInputFlag : int32_t {
+    NONE         = 0x0,  // no attributes
+    FAST         = 0x1,  // prefer an input that supports "fast tracks"
+    HW_HOTWORD   = 0x2,  // prefer an input that captures from hw hotword source
+    RAW          = 0x4,  // minimize signal processing
+    SYNC         = 0x8,  // synchronize I/O streams
+    MMAP_NOIRQ   = 0x10, // input operates in MMAP no IRQ mode.
+    VOIP_TX      = 0x20, // preferred input for VoIP calls.
+    HW_AV_SYNC   = 0x40, // input connected to an output that uses a hardware A/V sync
+    DIRECT       = 0x80, // for acquiring encoded streams
+};
diff --git a/audio/common/7.0/Android.bp b/audio/common/7.0/Android.bp
new file mode 100644
index 0000000..e24871c
--- /dev/null
+++ b/audio/common/7.0/Android.bp
@@ -0,0 +1,27 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.audio.common@7.0",
+    root: "android.hardware",
+    srcs: [
+        "types.hal",
+    ],
+    interfaces: [
+        "android.hidl.safe_union@1.0",
+    ],
+    gen_java: true,
+    gen_java_constants: true,
+}
+
+cc_library {
+    name: "android.hardware.audio.common@7.0-enums",
+    vendor_available: true,
+    generated_sources: ["audio_policy_configuration_V7_0"],
+    generated_headers: ["audio_policy_configuration_V7_0"],
+    header_libs: ["libxsdc-utils"],
+    shared_libs: [
+        "libbase",
+        "liblog",
+        "libxml2",
+    ],
+}
diff --git a/audio/common/7.0/types.hal b/audio/common/7.0/types.hal
new file mode 100644
index 0000000..94d0af7
--- /dev/null
+++ b/audio/common/7.0/types.hal
@@ -0,0 +1,419 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.common@7.0;
+
+import android.hidl.safe_union@1.0;
+
+/**
+ * Handle type for identifying audio resources. Handles are allocated by the framework.
+ */
+typedef int32_t AudioIoHandle;
+
+/**
+ * Each port has a unique ID or handle allocated by policy manager.
+ */
+typedef int32_t AudioPortHandle;
+
+/**
+ * Each patch is identified by a handle allocated by the HAL.
+ */
+typedef int32_t AudioPatchHandle;
+
+/**
+ * A HW synchronization source returned by the audio HAL.
+ */
+typedef uint32_t AudioHwSync;
+
+/**
+ * Commonly used structure for passing unique identifieds (UUID).
+ * For the definition of UUID, refer to ITU-T X.667 spec.
+ */
+struct Uuid {
+    uint32_t timeLow;
+    uint16_t timeMid;
+    uint16_t versionAndTimeHigh;
+    uint16_t variantAndClockSeqHigh;
+    uint8_t[6] node;
+};
+
+
+/*
+ *
+ *  Audio streams
+ *
+ */
+
+/**
+ * Audio stream type describing the intended use case of a stream.
+ * See 'audioStreamType' in audio_policy_configuration.xsd for the
+ * list of allowed values.
+ */
+typedef string AudioStreamType;
+
+/**
+ * An audio source defines the intended use case for the sound being recorded.
+ * See 'audioSource' in audio_policy_configuration.xsd for the
+ * list of allowed values.
+ */
+typedef string AudioSource;
+
+/**
+ * An audio session identifier is used to designate the particular
+ * playback or recording session (e.g. playback performed by a certain
+ * application).
+ */
+typedef int32_t AudioSession;
+
+enum AudioSessionConsts : int32_t {
+    /**
+     * Session for effects attached to a particular sink or source audio device
+     * (e.g an effect only applied to a speaker)
+     */
+    DEVICE = -2,
+    /**
+     * Session for effects attached to a particular output stream
+     * (value must be less than 0)
+     */
+    OUTPUT_STAGE = -1,
+    /**
+     * Session for effects applied to output mix. These effects can
+     * be moved by audio policy manager to another output stream
+     * (value must be 0)
+     */
+    OUTPUT_MIX = 0,
+};
+
+/**
+ * Audio format indicates audio codec type.
+ * See 'audioFormat' in audio_policy_configuration.xsd for the
+ * list of allowed values.
+ */
+typedef string AudioFormat;
+
+/**
+ * Audio channel mask indicates presence of particular channels.
+ * See 'audioChannelMask' in audio_policy_configuration.xsd for the
+ * list of allowed values.
+ */
+typedef string AudioChannelMask;
+
+/**
+ * Basic configuration applicable to any stream of audio.
+ */
+struct AudioBasicConfig {
+    uint32_t sampleRateHz;              // 0 means 'unspecified'
+    vec<AudioChannelMask> channelMask;  // empty means 'unspecified'
+    AudioFormat format;                 // 'DEFAULT' means 'unspecified'
+};
+
+/**
+ * Major modes for a mobile device. The current mode setting affects audio
+ * routing.
+ */
+@export(name="audio_mode_t", value_prefix="AUDIO_MODE_")
+enum AudioMode : int32_t {
+    NORMAL           = 0,
+    RINGTONE         = 1,
+    /** Calls handled by the telephony stack (Eg: PSTN). */
+    IN_CALL          = 2,
+    /** Calls handled by apps (Eg: Hangout). */
+    IN_COMMUNICATION = 3,
+    /** Call screening in progress. */
+    CALL_SCREEN      = 4,
+};
+
+/**
+ * Specifies a device address in case when several devices of the same type
+ * can be connected (e.g. BT A2DP, USB).
+ */
+struct DeviceAddress {
+    /**
+     * Audio device specifies type (or category) of audio I/O device
+     * (e.g. speaker or headphones).
+     * See 'audioDevice' in audio_policy_configuration.xsd for the
+     * list of allowed values.
+     */
+    string deviceType;
+    safe_union Address {
+        /**
+         * The address may be left unspecified if 'device' specifies
+         * a physical device unambiguously.
+         */
+        Monostate unspecified;
+        /** IEEE 802 MAC address. Set for Bluetooth devices. */
+        uint8_t[6] mac;
+        /** IPv4 Address. Set for IPv4 devices. */
+        uint8_t[4] ipv4;
+        /** IPv6 Address. Set for IPv6 devices. */
+        uint16_t[8] ipv6;
+        /** PCI bus Address. Set for USB devices. */
+        struct Alsa {
+            int32_t card;
+            int32_t device;
+        } alsa;
+        /** Arbitrary BUS device unique address. Not interpreted by the framework. */
+        string bus;
+        /** Arbitrary REMOTE_SUBMIX device unique address. Not interpreted by the HAL. */
+        string rSubmix;
+    } address;
+};
+
+/**
+ * Audio usage specifies the intended use case for the sound being played.
+ * See 'audioUsage' in audio_policy_configuration.xsd for the
+ * list of allowed values.
+ */
+typedef string AudioUsage;
+
+/**
+ * Audio content type expresses the general category of the content.
+ * See 'audioContentType' in audio_policy_configuration.xsd for the
+ * list of allowed values.
+ */
+typedef string AudioContentType;
+
+/** Encapsulation mode used for sending audio compressed data. */
+@export(name="audio_encapsulation_mode_t", value_prefix="AUDIO_ENCAPSULATION_MODE_")
+enum AudioEncapsulationMode : int32_t {
+    // Do not change these values without updating their counterparts
+    // in frameworks/base/media/java/android/media/AudioTrack.java
+    /**
+     * No encapsulation mode for metadata.
+     */
+    NONE              = 0,
+    /**
+     * Elementary stream payload with metadata
+     */
+    ELEMENTARY_STREAM = 1,
+    /**
+     *  Handle-based payload with metadata
+     */
+    HANDLE            = 2,
+};
+
+/**
+ * Additional information about the stream passed to hardware decoders.
+ */
+struct AudioOffloadInfo {
+    AudioBasicConfig base;
+    AudioStreamType streamType;
+    uint32_t bitRatePerSecond;
+    int64_t durationMicroseconds;  // -1 if unknown
+    bool hasVideo;
+    bool isStreaming;
+    uint32_t bitWidth;
+    uint32_t bufferSize;
+    AudioUsage usage;
+    AudioEncapsulationMode encapsulationMode;
+    int32_t contentId;
+    int32_t syncId;
+};
+
+/**
+ * Commonly used audio stream configuration parameters.
+ */
+struct AudioConfig {
+    AudioBasicConfig base;
+    AudioOffloadInfo offloadInfo;
+    uint64_t frameCount;
+};
+
+/** Metadata of a playback track for a StreamOut. */
+struct PlaybackTrackMetadata {
+    AudioUsage usage;
+    AudioContentType contentType;
+    /**
+     * Positive linear gain applied to the track samples. 0 being muted and 1 is no attenuation,
+     * 2 means double amplification...
+     * Must not be negative.
+     */
+    float gain;
+};
+
+/** Metadatas of the source of a StreamOut. */
+struct SourceMetadata {
+    vec<PlaybackTrackMetadata> tracks;
+};
+
+/** Metadata of a record track for a StreamIn. */
+struct RecordTrackMetadata {
+    AudioSource source;
+    /**
+     * Positive linear gain applied to the track samples. 0 being muted and 1 is no attenuation,
+     * 2 means double amplification...
+     * Must not be negative.
+     */
+    float gain;
+    /**
+     * Indicates the destination of an input stream, can be left unspecified.
+     */
+    safe_union Destination {
+        Monostate unspecified;
+        DeviceAddress device;
+    } destination;
+};
+
+/** Metadatas of the sink of a StreamIn. */
+struct SinkMetadata {
+    vec<RecordTrackMetadata> tracks;
+};
+
+/*
+ *
+ *  Volume control
+ *
+ */
+
+/**
+ * Type of gain control exposed by an audio port.
+ */
+@export(name="", value_prefix="AUDIO_GAIN_MODE_")
+enum AudioGainMode : uint32_t {
+    JOINT = 0x1,    // supports joint channel gain control
+    CHANNELS = 0x2, // supports separate channel gain control
+    RAMP = 0x4      // supports gain ramps
+};
+
+/**
+ * An audio_gain struct is a representation of a gain stage.
+ * A gain stage is always attached to an audio port.
+ */
+struct AudioGain {
+    bitfield<AudioGainMode> mode;
+    vec<AudioChannelMask> channelMask; // channels which gain an be controlled
+    int32_t minValue;     // minimum gain value in millibels
+    int32_t maxValue;     // maximum gain value in millibels
+    int32_t defaultValue; // default gain value in millibels
+    uint32_t stepValue;   // gain step in millibels
+    uint32_t minRampMs;   // minimum ramp duration in ms
+    uint32_t maxRampMs;   // maximum ramp duration in ms
+};
+
+/**
+ * The gain configuration structure is used to get or set the gain values of a
+ * given port.
+ */
+struct AudioGainConfig {
+    int32_t index;  // index of the corresponding AudioGain in AudioPort.gains
+    AudioGainMode mode;
+    vec<AudioChannelMask> channelMask;  // channels which gain value follows
+    /**
+     * Gain values in millibels for each channel ordered from LSb to MSb in
+     * channel mask. The number of values is 1 in joint mode or
+     * popcount(channel_mask).
+     */
+    int32_t[4 * 8] values;
+    uint32_t rampDurationMs;  // ramp duration in ms
+};
+
+
+/*
+ *
+ *  Routing control
+ *
+ */
+
+/*
+ * Types defined here are used to describe an audio source or sink at internal
+ * framework interfaces (audio policy, patch panel) or at the audio HAL.
+ * Sink and sources are grouped in a concept of “audio port” representing an
+ * audio end point at the edge of the system managed by the module exposing
+ * the interface.
+ */
+
+/**
+ * A helper aggregate structure providing parameters that depend on the
+ * port role.
+ */
+safe_union AudioPortExtendedInfo {
+    /** Set when no information is provided. */
+    Monostate unspecified;
+    /** Set when the audio port is an audio device. */
+    DeviceAddress device;
+    /** Set when the audio port is a mix. The handle is of a stream. */
+    struct AudioPortMixExt {
+        /** I/O handle of the input/output stream. */
+        AudioIoHandle ioHandle;
+        safe_union UseCase {
+            /** Specified when the port is in the SOURCE role. */
+            AudioStreamType stream;
+            /** Specified when the port is in the SINK role. */
+            AudioSource source;
+        } useCase;
+    } mix;
+    /** Set when the audio port is an audio session. */
+    AudioSession session;
+};
+
+/**
+ * Audio port configuration structure used to specify a particular configuration
+ * of an audio port.
+ */
+struct AudioPortConfig {
+    /**
+     * The 'id' field is set when it is needed to select the port and
+     * apply new configuration for it.
+     */
+    AudioPortHandle id;
+    /**
+     * Basic parameters: sampling rate, format, channel mask. Only some of the
+     * parameters (or none) may be set. See the documentation of the
+     * AudioBasicConfig struct.
+     */
+    AudioBasicConfig config;
+    /** Associated gain control. */
+    safe_union OptionalGain {
+        Monostate unspecified;
+        AudioGainConfig config;
+    } gain;
+    /** Parameters that depend on the actual port role. */
+    AudioPortExtendedInfo ext;
+};
+
+/**
+ * Audio port structure describes the capabilities of an audio port
+ * as well as its current configuration.
+ */
+struct AudioPort {
+    /**
+     * Unique identifier of the port within this HAL service. When calling
+     * from the client side functions like IDevice.getAudioPort is it allowed
+     * to only specify the 'id' and leave the other fields unspecified.
+     */
+    AudioPortHandle id;
+    /**
+     * Human-readable name describing the function of the port.
+     * E.g. "telephony_tx" or "fm_tuner".
+     */
+    string name;
+    /** List of audio profiles supported by the port. */
+    struct AudioProfile {
+        AudioFormat format;
+        /** List of the sample rates supported by the profile. */
+        vec<uint32_t> sampleRates;
+        /** List of channel masks supported by the profile. */
+        vec<AudioChannelMask> channelMasks;
+    };
+    vec<AudioProfile> profiles;
+    /** List of gain controls attached to the port. */
+    vec<AudioGain> gains;
+    /**
+     * Current configuration of the audio port, may have all the fields left
+     * unspecified.
+     */
+    AudioPortConfig activeConfig;
+};
diff --git a/audio/common/all-versions/copyHAL.sh b/audio/common/all-versions/copyHAL.sh
index 0a32a51..23e057a 100755
--- a/audio/common/all-versions/copyHAL.sh
+++ b/audio/common/all-versions/copyHAL.sh
@@ -16,6 +16,7 @@
 readonly HAL_DIRECTORY=hardware/interfaces/audio
 readonly HAL_VTS_DIRECTORY=core/all-versions/vts/functional
 readonly HAL_VTS_FILE=AudioPrimaryHidlHalTest.cpp
+readonly HAL_EFFECT_VTS_DIRECTORY=effect/all-versions/vts/functional
 readonly HAL_SERVICE_DIRECTORY=common/all-versions/default/service/
 readonly HAL_SERVICE_CPP=service.cpp
 
@@ -25,7 +26,7 @@
 
 readonly VTS_DIRECTORY=test/vts-testcase/hal/audio
 readonly VTS_LIST=test/vts/tools/build/tasks/list/vts_test_lib_hidl_package_list.mk
-readonly WATCHDOG=frameworks/base/services/core/java/com/android/server/Watchdog.cpp
+readonly WATCHDOG=frameworks/base/services/core/java/com/android/server/Watchdog.java
 readonly DUMP_UTILS=frameworks/native/libs/dumputils/dump_utils.cpp
 readonly GSI_CURRENT=build/make/target/product/gsi/current.txt
 
@@ -45,6 +46,9 @@
 readonly BASE_VERSION_ESCAPE="${BASE_MAJOR_VERSION}\.${BASE_MINOR_VERSION}"
 readonly BASE_VERSION_UNDERSCORE="${BASE_MAJOR_VERSION}_${BASE_MINOR_VERSION}"
 readonly NEW_VERSION_UNDERSCORE="${NEW_MAJOR_VERSION}_${NEW_MINOR_VERSION}"
+
+readonly HAL_VTS_CONFIG_FILE_GLOB="*Audio*V${BASE_VERSION_UNDERSCORE}*Test.xml"
+
 updateVersion() {
     if [ $1 == "-e" ]; then
         local -r REGEX="$2"; shift 2
@@ -71,6 +75,10 @@
     updateVersion -e "audio.*$BASE_VERSION_REGEX" "$@"
 }
 
+updateAudioVtsTargetVersion() {
+    updateVersion -e "Audio.*V$BASE_VERSION_REGEX" "$@"
+}
+
 updateLicenceDates() {
     # Update date on the 2 first lines
     sed -i "1,2 s/20[0-9][0-9]/$(date +"%Y")/g" "$@"
@@ -101,9 +109,16 @@
         cp -Tar $DIR/$BASE_VERSION $DIR/$NEW_VERSION
         COPY+=" $DIR/$NEW_VERSION"
     done
+    local COPY_FILES_TO=
+    for FILE_FROM in $(find . -type f -name "$HAL_VTS_CONFIG_FILE_GLOB"); do
+        local FILE_TO=${FILE_FROM/$BASE_VERSION_UNDERSCORE/$NEW_VERSION_UNDERSCORE}
+        cp "$FILE_FROM" "$FILE_TO"
+        COPY_FILES_TO+=" $FILE_TO"
+    done
 
     echo "Replacing $BASE_VERSION by $NEW_VERSION in the copied files"
     updateVersion $(find $COPY -type f)
+    updateVersion $COPY_FILES_TO
     updateLicenceDates $(find $COPY -type f)
 
     echo "Update implementation and VTS generic code"
@@ -156,18 +171,12 @@
 echo "Now creating the framework adapter version"
 runIfNeeded $FWK_DIRECTORY createFrameworkAdapter
 
-createVTSXML() {
-    cp -Tar V$BASE_VERSION_UNDERSCORE V$NEW_VERSION_UNDERSCORE
-    cp -Tar effect/{V$BASE_VERSION_UNDERSCORE,V$NEW_VERSION_UNDERSCORE}
-    local -r FILES=$(find {.,effect}/V$NEW_VERSION_UNDERSCORE -type f)
-    updateVersion $FILES
-    updateLicenceDates $FILES
-}
-echo "Now update VTS XML"
-runIfNeeded $VTS_DIRECTORY createVTSXML
-
 echo "Now register new VTS"
+PREV_MODIFIED="$MODIFIED"
 runIfNeeded $(dirname $VTS_LIST) updateAudioVersion -v original_before=1 $(basename $VTS_LIST)
+if [[ "$PREV_MODIFIED" != "$MODIFIED" ]]; then
+    updateAudioVtsTargetVersion -v original_after=1 $(basename $VTS_LIST)
+fi
 
 echo "Now update watchdog"
 runIfNeeded $(dirname $WATCHDOG) updateAudioVersion -v original_before=1 $(basename $WATCHDOG)
diff --git a/audio/common/all-versions/default/Android.bp b/audio/common/all-versions/default/Android.bp
index 0eb4a71..a72c8dc 100644
--- a/audio/common/all-versions/default/Android.bp
+++ b/audio/common/all-versions/default/Android.bp
@@ -36,7 +36,7 @@
     ],
     export_header_lib_headers: [
         "android.hardware.audio.common.util@all-versions",
-    ]
+    ],
 }
 
 cc_defaults {
@@ -57,7 +57,7 @@
         "android.hardware.audio.common-util",
     ],
     export_shared_lib_headers: [
-        "android.hardware.audio.common-util"
+        "android.hardware.audio.common-util",
     ],
 
     header_libs: [
@@ -76,7 +76,7 @@
         "-DMAJOR_VERSION=2",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_library_shared {
@@ -89,7 +89,7 @@
         "-DMAJOR_VERSION=4",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_library_shared {
@@ -102,7 +102,7 @@
         "-DMAJOR_VERSION=5",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_library_shared {
@@ -115,5 +115,19 @@
         "-DMAJOR_VERSION=6",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
+}
+
+cc_library_shared {
+    enabled: false,
+    name: "android.hardware.audio.common@7.0-util",
+    defaults: ["android.hardware.audio.common-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@7.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
 }
diff --git a/audio/core/all-versions/default/Android.bp b/audio/core/all-versions/default/Android.bp
index 8fdb70d..6be0628 100644
--- a/audio/core/all-versions/default/Android.bp
+++ b/audio/core/all-versions/default/Android.bp
@@ -123,3 +123,19 @@
     name: "android.hardware.audio@6.0-impl",
     defaults: ["android.hardware.audio@6.0-impl_default"],
 }
+
+cc_library_shared {
+    enabled: false,
+    name: "android.hardware.audio@7.0-impl",
+    defaults: ["android.hardware.audio-impl_default"],
+    shared_libs: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.0-util",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
diff --git a/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp
new file mode 100644
index 0000000..33efa6f
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/7.0/AudioPrimaryHidlHalTest.cpp
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// pull in all the <= 6.0 tests
+#include "6.0/AudioPrimaryHidlHalTest.cpp"
diff --git a/audio/core/all-versions/vts/functional/Android.bp b/audio/core/all-versions/vts/functional/Android.bp
index 2d5e8a5..6ac9b20 100644
--- a/audio/core/all-versions/vts/functional/Android.bp
+++ b/audio/core/all-versions/vts/functional/Android.bp
@@ -128,3 +128,27 @@
     // TODO(b/146104851): Add auto-gen rules and remove it.
     test_config: "VtsHalAudioV6_0TargetTest.xml",
 }
+
+cc_test {
+    enabled: false,
+    name: "VtsHalAudioV7_0TargetTest",
+    defaults: ["VtsHalAudioTargetTest_defaults"],
+    srcs: [
+        "7.0/AudioPrimaryHidlHalTest.cpp",
+    ],
+    static_libs: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio.common@7.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+    data: [
+        ":audio_policy_configuration_V7_0",
+    ],
+    // Use test_config for vts suite.
+    // TODO(b/146104851): Add auto-gen rules and remove it.
+    test_config: "VtsHalAudioV7_0TargetTest.xml",
+}
diff --git a/audio/core/all-versions/vts/functional/VtsHalAudioV7_0TargetTest.xml b/audio/core/all-versions/vts/functional/VtsHalAudioV7_0TargetTest.xml
new file mode 100644
index 0000000..6635f31
--- /dev/null
+++ b/audio/core/all-versions/vts/functional/VtsHalAudioV7_0TargetTest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsHalAudioV7_0TargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
+    <target_preparer class="com.android.tradefed.targetprep.StopServicesSetup"/>
+
+    <target_preparer class="com.android.tradefed.targetprep.RunCommandTargetPreparer">
+        <option name="run-command" value="setprop vts.native_server.on 1"/>
+        <option name="teardown-command" value="setprop vts.native_server.on 0"/>
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="VtsHalAudioV7_0TargetTest->/data/local/tmp/VtsHalAudioV7_0TargetTest" />
+        <option name="push" value="audio_policy_configuration_V7_0.xsd->/data/local/tmp/audio_policy_configuration_V7_0.xsd" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalAudioV7_0TargetTest" />
+    </test>
+</configuration>
diff --git a/audio/effect/7.0/Android.bp b/audio/effect/7.0/Android.bp
new file mode 100644
index 0000000..c113782
--- /dev/null
+++ b/audio/effect/7.0/Android.bp
@@ -0,0 +1,30 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.audio.effect@7.0",
+    root: "android.hardware",
+    srcs: [
+        "types.hal",
+        "IAcousticEchoCancelerEffect.hal",
+        "IAutomaticGainControlEffect.hal",
+        "IBassBoostEffect.hal",
+        "IDownmixEffect.hal",
+        "IEffect.hal",
+        "IEffectBufferProviderCallback.hal",
+        "IEffectsFactory.hal",
+        "IEnvironmentalReverbEffect.hal",
+        "IEqualizerEffect.hal",
+        "ILoudnessEnhancerEffect.hal",
+        "INoiseSuppressionEffect.hal",
+        "IPresetReverbEffect.hal",
+        "IVirtualizerEffect.hal",
+        "IVisualizerEffect.hal",
+    ],
+    interfaces: [
+        "android.hardware.audio.common@7.0",
+        "android.hidl.base@1.0",
+        "android.hidl.safe_union@1.0",
+    ],
+    gen_java: false,
+    gen_java_constants: true,
+}
diff --git a/audio/effect/7.0/IAcousticEchoCancelerEffect.hal b/audio/effect/7.0/IAcousticEchoCancelerEffect.hal
new file mode 100644
index 0000000..2bc2a7f
--- /dev/null
+++ b/audio/effect/7.0/IAcousticEchoCancelerEffect.hal
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IAcousticEchoCancelerEffect extends IEffect {
+    /**
+     * Sets echo delay value in milliseconds.
+     */
+    setEchoDelay(uint32_t echoDelayMs) generates (Result retval);
+
+    /**
+     * Gets echo delay value in milliseconds.
+     */
+    getEchoDelay() generates (Result retval, uint32_t echoDelayMs);
+};
diff --git a/audio/effect/7.0/IAutomaticGainControlEffect.hal b/audio/effect/7.0/IAutomaticGainControlEffect.hal
new file mode 100644
index 0000000..8ffa659
--- /dev/null
+++ b/audio/effect/7.0/IAutomaticGainControlEffect.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IAutomaticGainControlEffect extends IEffect {
+    /**
+     * Sets target level in millibels.
+     */
+    setTargetLevel(int16_t targetLevelMb) generates (Result retval);
+
+    /**
+     * Gets target level.
+     */
+    getTargetLevel() generates (Result retval, int16_t targetLevelMb);
+
+    /**
+     * Sets gain in the compression range in millibels.
+     */
+    setCompGain(int16_t compGainMb) generates (Result retval);
+
+    /**
+     * Gets gain in the compression range.
+     */
+    getCompGain() generates (Result retval, int16_t compGainMb);
+
+    /**
+     * Enables or disables limiter.
+     */
+    setLimiterEnabled(bool enabled) generates (Result retval);
+
+    /**
+     * Returns whether limiter is enabled.
+     */
+    isLimiterEnabled() generates (Result retval, bool enabled);
+
+    struct AllProperties {
+        int16_t targetLevelMb;
+        int16_t compGainMb;
+        bool limiterEnabled;
+    };
+
+    /**
+     * Sets all properties at once.
+     */
+    setAllProperties(AllProperties properties) generates (Result retval);
+
+    /**
+     * Gets all properties at once.
+     */
+    getAllProperties() generates (Result retval, AllProperties properties);
+};
diff --git a/audio/effect/7.0/IBassBoostEffect.hal b/audio/effect/7.0/IBassBoostEffect.hal
new file mode 100644
index 0000000..d8d049e
--- /dev/null
+++ b/audio/effect/7.0/IBassBoostEffect.hal
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IBassBoostEffect extends IEffect {
+    /**
+     * Returns whether setting bass boost strength is supported.
+     */
+    isStrengthSupported() generates (Result retval, bool strengthSupported);
+
+    enum StrengthRange : uint16_t {
+        MIN = 0,
+        MAX = 1000
+    };
+
+    /**
+     * Sets bass boost strength.
+     *
+     * @param strength strength of the effect. The valid range for strength
+     *                 strength is [0, 1000], where 0 per mille designates the
+     *                 mildest effect and 1000 per mille designates the
+     *                 strongest.
+     * @return retval operation completion status.
+     */
+    setStrength(uint16_t strength) generates (Result retval);
+
+    /**
+     * Gets virtualization strength.
+     */
+    getStrength() generates (Result retval, uint16_t strength);
+};
diff --git a/audio/effect/7.0/IDownmixEffect.hal b/audio/effect/7.0/IDownmixEffect.hal
new file mode 100644
index 0000000..2035430
--- /dev/null
+++ b/audio/effect/7.0/IDownmixEffect.hal
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IDownmixEffect extends IEffect {
+    enum Type : int32_t {
+        STRIP, // throw away the extra channels
+        FOLD   // mix the extra channels with FL/FR
+    };
+
+    /**
+     * Sets the current downmix preset.
+     */
+    setType(Type preset) generates (Result retval);
+
+    /**
+     * Gets the current downmix preset.
+     */
+    getType() generates (Result retval, Type preset);
+};
diff --git a/audio/effect/7.0/IEffect.hal b/audio/effect/7.0/IEffect.hal
new file mode 100644
index 0000000..aa94f6d
--- /dev/null
+++ b/audio/effect/7.0/IEffect.hal
@@ -0,0 +1,417 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffectBufferProviderCallback;
+
+interface IEffect {
+    /**
+     * Initialize effect engine--all configurations return to default.
+     *
+     * @return retval operation completion status.
+     */
+    @entry
+    init() generates (Result retval);
+
+    /**
+     * Apply new audio parameters configurations for input and output buffers.
+     * The provider callbacks may be empty, but in this case the buffer
+     * must be provided in the EffectConfig structure.
+     *
+     * @param config configuration descriptor.
+     * @param inputBufferProvider optional buffer provider reference.
+     * @param outputBufferProvider optional buffer provider reference.
+     * @return retval operation completion status.
+     */
+    setConfig(EffectConfig config,
+            IEffectBufferProviderCallback inputBufferProvider,
+            IEffectBufferProviderCallback outputBufferProvider)
+            generates (Result retval);
+
+    /**
+     * Reset the effect engine. Keep configuration but resets state and buffer
+     * content.
+     *
+     * @return retval operation completion status.
+     */
+    reset() generates (Result retval);
+
+    /**
+     * Enable processing.
+     *
+     * @return retval operation completion status.
+     */
+    enable() generates (Result retval);
+
+    /**
+     * Disable processing.
+     *
+     * @return retval operation completion status.
+     */
+    disable() generates (Result retval);
+
+    /**
+     * Set the rendering device the audio output path is connected to.  The
+     * effect implementation must set EFFECT_FLAG_DEVICE_IND flag in its
+     * descriptor to receive this command when the device changes.
+     *
+     * Note: this method is only supported for effects inserted into
+     *       the output chain.
+     *
+     * @param device output device specification.
+     * @return retval operation completion status.
+     */
+    setDevice(DeviceAddress device) generates (Result retval);
+
+    /**
+     * Set and get volume. Used by audio framework to delegate volume control to
+     * effect engine. The effect implementation must set EFFECT_FLAG_VOLUME_CTRL
+     * flag in its descriptor to receive this command. The effect engine must
+     * return the volume that should be applied before the effect is
+     * processed. The overall volume (the volume actually applied by the effect
+     * engine multiplied by the returned value) should match the value indicated
+     * in the command.
+     *
+     * @param volumes vector containing volume for each channel defined in
+     *                EffectConfig for output buffer expressed in 8.24 fixed
+     *                point format.
+     * @return result updated volume values.
+     * @return retval operation completion status.
+     */
+    setAndGetVolume(vec<uint32_t> volumes)
+            generates (Result retval, vec<uint32_t> result);
+
+    /**
+     * Notify the effect of the volume change. The effect implementation must
+     * set EFFECT_FLAG_VOLUME_IND flag in its descriptor to receive this
+     * command.
+     *
+     * @param volumes vector containing volume for each channel defined in
+     *                EffectConfig for output buffer expressed in 8.24 fixed
+     *                point format.
+     * @return retval operation completion status.
+     */
+    volumeChangeNotification(vec<uint32_t> volumes)
+            generates (Result retval);
+
+    /**
+     * Set the audio mode. The effect implementation must set
+     * EFFECT_FLAG_AUDIO_MODE_IND flag in its descriptor to receive this command
+     * when the audio mode changes.
+     *
+     * @param mode desired audio mode.
+     * @return retval operation completion status.
+     */
+    setAudioMode(AudioMode mode) generates (Result retval);
+
+    /**
+     * Apply new audio parameters configurations for input and output buffers of
+     * reverse stream.  An example of reverse stream is the echo reference
+     * supplied to an Acoustic Echo Canceler.
+     *
+     * @param config configuration descriptor.
+     * @param inputBufferProvider optional buffer provider reference.
+     * @param outputBufferProvider optional buffer provider reference.
+     * @return retval operation completion status.
+     */
+    setConfigReverse(EffectConfig config,
+            IEffectBufferProviderCallback inputBufferProvider,
+            IEffectBufferProviderCallback outputBufferProvider)
+            generates (Result retval);
+
+    /**
+     * Set the capture device the audio input path is connected to. The effect
+     * implementation must set EFFECT_FLAG_DEVICE_IND flag in its descriptor to
+     * receive this command when the device changes.
+     *
+     * Note: this method is only supported for effects inserted into
+     *       the input chain.
+     *
+     * @param device input device specification.
+     * @return retval operation completion status.
+     */
+    setInputDevice(DeviceAddress device) generates (Result retval);
+
+    /**
+     * Read audio parameters configurations for input and output buffers.
+     *
+     * @return retval operation completion status.
+     * @return config configuration descriptor.
+     */
+    getConfig() generates (Result retval, EffectConfig config);
+
+    /**
+     * Read audio parameters configurations for input and output buffers of
+     * reverse stream.
+     *
+     * @return retval operation completion status.
+     * @return config configuration descriptor.
+     */
+    getConfigReverse() generates (Result retval, EffectConfig config);
+
+    /**
+     * Queries for supported combinations of main and auxiliary channels
+     * (e.g. for a multi-microphone noise suppressor).
+     *
+     * @param maxConfigs maximum number of the combinations to return.
+     * @return retval absence of the feature support is indicated using
+     *                NOT_SUPPORTED code. RESULT_TOO_BIG is returned if
+     *                the number of supported combinations exceeds 'maxConfigs'.
+     * @return result list of configuration descriptors.
+     */
+    getSupportedAuxChannelsConfigs(uint32_t maxConfigs)
+            generates (Result retval, vec<EffectAuxChannelsConfig> result);
+
+    /**
+     * Retrieves the current configuration of main and auxiliary channels.
+     *
+     * @return retval absence of the feature support is indicated using
+     *                NOT_SUPPORTED code.
+     * @return result configuration descriptor.
+     */
+    getAuxChannelsConfig()
+            generates (Result retval, EffectAuxChannelsConfig result);
+
+    /**
+     * Sets the current configuration of main and auxiliary channels.
+     *
+     * @return retval operation completion status; absence of the feature
+     *                support is indicated using NOT_SUPPORTED code.
+     */
+    setAuxChannelsConfig(EffectAuxChannelsConfig config)
+            generates (Result retval);
+
+    /**
+     * Set the audio source the capture path is configured for (Camcorder, voice
+     * recognition...).
+     *
+     * Note: this method is only supported for effects inserted into
+     *       the input chain.
+     *
+     * @param source source descriptor.
+     * @return retval operation completion status.
+     */
+    setAudioSource(AudioSource source) generates (Result retval);
+
+    /**
+     * This command indicates if the playback thread the effect is attached to
+     * is offloaded or not, and updates the I/O handle of the playback thread
+     * the effect is attached to.
+     *
+     * @param param effect offload descriptor.
+     * @return retval operation completion status.
+     */
+    offload(EffectOffloadParameter param) generates (Result retval);
+
+    /**
+     * Returns the effect descriptor.
+     *
+     * @return retval operation completion status.
+     * @return descriptor effect descriptor.
+     */
+    getDescriptor() generates (Result retval, EffectDescriptor descriptor);
+
+    /**
+     * Set up required transports for passing audio buffers to the effect.
+     *
+     * The transport consists of shared memory and a message queue for reporting
+     * effect processing operation status. The shared memory is set up
+     * separately using 'setProcessBuffers' method.
+     *
+     * Processing is requested by setting 'REQUEST_PROCESS' or
+     * 'REQUEST_PROCESS_REVERSE' EventFlags associated with the status message
+     * queue. The result of processing may be one of the following:
+     *   OK if there were no errors during processing;
+     *   INVALID_ARGUMENTS if audio buffers are invalid;
+     *   INVALID_STATE if the engine has finished the disable phase;
+     *   NOT_INITIALIZED if the audio buffers were not set;
+     *   NOT_SUPPORTED if the requested processing type is not supported by
+     *                 the effect.
+     *
+     * @return retval OK if both message queues were created successfully.
+     *                INVALID_STATE if the method was already called.
+     *                INVALID_ARGUMENTS if there was a problem setting up
+     *                                  the queue.
+     * @return statusMQ a message queue used for passing status from the effect.
+     */
+    prepareForProcessing() generates (Result retval, fmq_sync<Result> statusMQ);
+
+    /**
+     * Set up input and output buffers for processing audio data. The effect
+     * may modify both the input and the output buffer during the operation.
+     * Buffers may be set multiple times during effect lifetime.
+     *
+     * The input and the output buffer may be reused between different effects,
+     * and the input buffer may be used as an output buffer. Buffers are
+     * distinguished using 'AudioBuffer.id' field.
+     *
+     * @param inBuffer input audio buffer.
+     * @param outBuffer output audio buffer.
+     * @return retval OK if both buffers were mapped successfully.
+     *                INVALID_ARGUMENTS if there was a problem with mapping
+     *                                  any of the buffers.
+     */
+    setProcessBuffers(AudioBuffer inBuffer, AudioBuffer outBuffer)
+            generates (Result retval);
+
+    /**
+     * Execute a vendor specific command on the effect. The command code
+     * and data, as well as result data are not interpreted by Android
+     * Framework and are passed as-is between the application and the effect.
+     *
+     * The effect must use standard POSIX.1-2001 error codes for the operation
+     * completion status.
+     *
+     * Use this method only if the effect is provided by a third party, and
+     * there is no interface defined for it. This method only works for effects
+     * implemented in software.
+     *
+     * @param commandId the ID of the command.
+     * @param data command data.
+     * @param resultMaxSize maximum size in bytes of the result; can be 0.
+     * @return status command completion status.
+     * @return result result data.
+     */
+    command(uint32_t commandId, vec<uint8_t> data, uint32_t resultMaxSize)
+            generates (int32_t status, vec<uint8_t> result);
+
+    /**
+     * Set a vendor-specific parameter and apply it immediately. The parameter
+     * code and data are not interpreted by Android Framework and are passed
+     * as-is between the application and the effect.
+     *
+     * The effect must use INVALID_ARGUMENTS return code if the parameter ID is
+     * unknown or if provided parameter data is invalid. If the effect does not
+     * support setting vendor-specific parameters, it must return NOT_SUPPORTED.
+     *
+     * Use this method only if the effect is provided by a third party, and
+     * there is no interface defined for it. This method only works for effects
+     * implemented in software.
+     *
+     * @param parameter identifying data of the parameter.
+     * @param value the value of the parameter.
+     * @return retval operation completion status.
+     */
+    setParameter(vec<uint8_t> parameter, vec<uint8_t> value)
+            generates (Result retval);
+
+    /**
+     * Get a vendor-specific parameter value. The parameter code and returned
+     * data are not interpreted by Android Framework and are passed as-is
+     * between the application and the effect.
+     *
+     * The effect must use INVALID_ARGUMENTS return code if the parameter ID is
+     * unknown. If the effect does not support setting vendor-specific
+     * parameters, it must return NOT_SUPPORTED.
+     *
+     * Use this method only if the effect is provided by a third party, and
+     * there is no interface defined for it.  This method only works for effects
+     * implemented in software.
+     *
+     * @param parameter identifying data of the parameter.
+     * @param valueMaxSize maximum size in bytes of the value.
+     * @return retval operation completion status.
+     * @return result the value of the parameter.
+     */
+    getParameter(vec<uint8_t> parameter, uint32_t valueMaxSize)
+            generates (Result retval, vec<uint8_t> value);
+
+    /**
+     * Get supported configs for a vendor-specific feature. The configs returned
+     * are not interpreted by Android Framework and are passed as-is between the
+     * application and the effect.
+     *
+     * The effect must use INVALID_ARGUMENTS return code if the feature ID is
+     * unknown. If the effect does not support getting vendor-specific feature
+     * configs, it must return NOT_SUPPORTED. If the feature is supported but
+     * the total number of supported configurations exceeds the maximum number
+     * indicated by the caller, the method must return RESULT_TOO_BIG.
+     *
+     * Use this method only if the effect is provided by a third party, and
+     * there is no interface defined for it.  This method only works for effects
+     * implemented in software.
+     *
+     * @param featureId feature identifier.
+     * @param maxConfigs maximum number of configs to return.
+     * @param configSize size of each config in bytes.
+     * @return retval operation completion status.
+     * @return configsCount number of configs returned.
+     * @return configsData data for all the configs returned.
+     */
+    getSupportedConfigsForFeature(
+            uint32_t featureId,
+            uint32_t maxConfigs,
+            uint32_t configSize) generates (
+                    Result retval,
+                    uint32_t configsCount,
+                    vec<uint8_t> configsData);
+
+    /**
+     * Get the current config for a vendor-specific feature. The config returned
+     * is not interpreted by Android Framework and is passed as-is between the
+     * application and the effect.
+     *
+     * The effect must use INVALID_ARGUMENTS return code if the feature ID is
+     * unknown. If the effect does not support getting vendor-specific
+     * feature configs, it must return NOT_SUPPORTED.
+     *
+     * Use this method only if the effect is provided by a third party, and
+     * there is no interface defined for it.  This method only works for effects
+     * implemented in software.
+     *
+     * @param featureId feature identifier.
+     * @param configSize size of the config in bytes.
+     * @return retval operation completion status.
+     * @return configData config data.
+     */
+    getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize)
+            generates (Result retval, vec<uint8_t> configData);
+
+    /**
+     * Set the current config for a vendor-specific feature. The config data
+     * is not interpreted by Android Framework and is passed as-is between the
+     * application and the effect.
+     *
+     * The effect must use INVALID_ARGUMENTS return code if the feature ID is
+     * unknown. If the effect does not support getting vendor-specific
+     * feature configs, it must return NOT_SUPPORTED.
+     *
+     * Use this method only if the effect is provided by a third party, and
+     * there is no interface defined for it.  This method only works for effects
+     * implemented in software.
+     *
+     * @param featureId feature identifier.
+     * @param configData config data.
+     * @return retval operation completion status.
+     */
+    setCurrentConfigForFeature(uint32_t featureId, vec<uint8_t> configData)
+            generates (Result retval);
+
+    /**
+     * Called by the framework to deinitialize the effect and free up
+     * 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.
+     */
+    close() generates (Result retval);
+};
diff --git a/audio/effect/7.0/IEffectBufferProviderCallback.hal b/audio/effect/7.0/IEffectBufferProviderCallback.hal
new file mode 100644
index 0000000..d18f7df
--- /dev/null
+++ b/audio/effect/7.0/IEffectBufferProviderCallback.hal
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+/**
+ * This callback interface contains functions that can be used by the effect
+ * engine 'process' function to exchange input and output audio buffers.
+ */
+interface IEffectBufferProviderCallback {
+    /**
+     * Called to retrieve a buffer where data should read from by 'process'
+     * function.
+     *
+     * @return buffer audio buffer for processing
+     */
+    getBuffer() generates (AudioBuffer buffer);
+
+    /**
+     * Called to provide a buffer with the data written by 'process' function.
+     *
+     * @param buffer audio buffer for processing
+     */
+    putBuffer(AudioBuffer buffer);
+};
diff --git a/audio/effect/7.0/IEffectsFactory.hal b/audio/effect/7.0/IEffectsFactory.hal
new file mode 100644
index 0000000..337251c
--- /dev/null
+++ b/audio/effect/7.0/IEffectsFactory.hal
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IEffectsFactory {
+    /**
+     * Returns descriptors of different effects in all loaded libraries.
+     *
+     * @return retval operation completion status.
+     * @return result list of effect descriptors.
+     */
+    getAllDescriptors() generates(Result retval, vec<EffectDescriptor> result);
+
+    /**
+     * Returns a descriptor of a particular effect.
+     *
+     * @return retval operation completion status.
+     * @return result effect descriptor.
+     */
+    getDescriptor(Uuid uid) generates(Result retval, EffectDescriptor result);
+
+    /**
+     * Creates an effect engine of the specified type.  To release the effect
+     * engine, it is necessary to release references to the returned effect
+     * object.
+     *
+     * @param uid effect uuid.
+     * @param session audio session to which this effect instance will be
+     *                attached.  All effects created with the same session ID
+     *                are connected in series and process the same signal
+     *                stream.
+     * @param ioHandle identifies the output or input stream this effect is
+     *                 directed to in audio HAL.
+     * @param device identifies the sink or source device this effect is directed to in the
+     *               audio HAL. Must be specified if session is AudioSessionConsts.DEVICE.
+     *               "device" is the AudioPortHandle used for the device when the audio
+     *               patch is created at the audio HAL.
+     * @return retval operation completion status.
+     * @return result the interface for the created effect.
+     * @return effectId the unique ID of the effect to be used with
+     *                  IStream::addEffect and IStream::removeEffect methods.
+     */
+    createEffect(Uuid uid, AudioSession session, AudioIoHandle ioHandle, AudioPortHandle device)
+        generates (Result retval, IEffect result, uint64_t effectId);
+};
diff --git a/audio/effect/7.0/IEnvironmentalReverbEffect.hal b/audio/effect/7.0/IEnvironmentalReverbEffect.hal
new file mode 100644
index 0000000..e02cfbc
--- /dev/null
+++ b/audio/effect/7.0/IEnvironmentalReverbEffect.hal
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IEnvironmentalReverbEffect extends IEffect {
+    /**
+     * Sets whether the effect should be bypassed.
+     */
+    setBypass(bool bypass) generates (Result retval);
+
+    /**
+     * Gets whether the effect should be bypassed.
+     */
+    getBypass() generates (Result retval, bool bypass);
+
+    enum ParamRange : int16_t {
+        ROOM_LEVEL_MIN = -6000,
+        ROOM_LEVEL_MAX = 0,
+        ROOM_HF_LEVEL_MIN = -4000,
+        ROOM_HF_LEVEL_MAX = 0,
+        DECAY_TIME_MIN = 100,
+        DECAY_TIME_MAX = 20000,
+        DECAY_HF_RATIO_MIN = 100,
+        DECAY_HF_RATIO_MAX = 1000,
+        REFLECTIONS_LEVEL_MIN = -6000,
+        REFLECTIONS_LEVEL_MAX = 0,
+        REFLECTIONS_DELAY_MIN = 0,
+        REFLECTIONS_DELAY_MAX = 65,
+        REVERB_LEVEL_MIN = -6000,
+        REVERB_LEVEL_MAX = 0,
+        REVERB_DELAY_MIN = 0,
+        REVERB_DELAY_MAX = 65,
+        DIFFUSION_MIN = 0,
+        DIFFUSION_MAX = 1000,
+        DENSITY_MIN = 0,
+        DENSITY_MAX = 1000
+    };
+
+    /**
+     * Sets the room level.
+     */
+    setRoomLevel(int16_t roomLevel) generates (Result retval);
+
+    /**
+     * Gets the room level.
+     */
+    getRoomLevel() generates (Result retval, int16_t roomLevel);
+
+    /**
+     * Sets the room high frequencies level.
+     */
+    setRoomHfLevel(int16_t roomHfLevel) generates (Result retval);
+
+    /**
+     * Gets the room high frequencies level.
+     */
+    getRoomHfLevel() generates (Result retval, int16_t roomHfLevel);
+
+    /**
+     * Sets the room decay time.
+     */
+    setDecayTime(uint32_t decayTime) generates (Result retval);
+
+    /**
+     * Gets the room decay time.
+     */
+    getDecayTime() generates (Result retval, uint32_t decayTime);
+
+    /**
+     * Sets the ratio of high frequencies decay.
+     */
+    setDecayHfRatio(int16_t decayHfRatio) generates (Result retval);
+
+    /**
+     * Gets the ratio of high frequencies decay.
+     */
+    getDecayHfRatio() generates (Result retval, int16_t decayHfRatio);
+
+    /**
+     * Sets the level of reflections in the room.
+     */
+    setReflectionsLevel(int16_t reflectionsLevel) generates (Result retval);
+
+    /**
+     * Gets the level of reflections in the room.
+     */
+    getReflectionsLevel() generates (Result retval, int16_t reflectionsLevel);
+
+    /**
+     * Sets the reflections delay in the room.
+     */
+    setReflectionsDelay(uint32_t reflectionsDelay) generates (Result retval);
+
+    /**
+     * Gets the reflections delay in the room.
+     */
+    getReflectionsDelay() generates (Result retval, uint32_t reflectionsDelay);
+
+    /**
+     * Sets the reverb level of the room.
+     */
+    setReverbLevel(int16_t reverbLevel) generates (Result retval);
+
+    /**
+     * Gets the reverb level of the room.
+     */
+    getReverbLevel() generates (Result retval, int16_t reverbLevel);
+
+    /**
+     * Sets the reverb delay of the room.
+     */
+    setReverbDelay(uint32_t reverDelay) generates (Result retval);
+
+    /**
+     * Gets the reverb delay of the room.
+     */
+    getReverbDelay() generates (Result retval, uint32_t reverbDelay);
+
+    /**
+     * Sets room diffusion.
+     */
+    setDiffusion(int16_t diffusion) generates (Result retval);
+
+    /**
+     * Gets room diffusion.
+     */
+    getDiffusion() generates (Result retval, int16_t diffusion);
+
+    /**
+     * Sets room wall density.
+     */
+    setDensity(int16_t density) generates (Result retval);
+
+    /**
+     * Gets room wall density.
+     */
+    getDensity() generates (Result retval, int16_t density);
+
+    struct AllProperties {
+        int16_t  roomLevel;         // in millibels,    range -6000 to 0
+        int16_t  roomHfLevel;       // in millibels,    range -4000 to 0
+        uint32_t decayTime;         // in milliseconds, range 100 to 20000
+        int16_t  decayHfRatio;      // in permilles,    range 100 to 1000
+        int16_t  reflectionsLevel;  // in millibels,    range -6000 to 0
+        uint32_t reflectionsDelay;  // in milliseconds, range 0 to 65
+        int16_t  reverbLevel;       // in millibels,    range -6000 to 0
+        uint32_t reverbDelay;       // in milliseconds, range 0 to 65
+        int16_t  diffusion;         // in permilles,    range 0 to 1000
+        int16_t  density;           // in permilles,    range 0 to 1000
+    };
+
+    /**
+     * Sets all properties at once.
+     */
+    setAllProperties(AllProperties properties) generates (Result retval);
+
+    /**
+     * Gets all properties at once.
+     */
+    getAllProperties() generates (Result retval, AllProperties properties);
+};
diff --git a/audio/effect/7.0/IEqualizerEffect.hal b/audio/effect/7.0/IEqualizerEffect.hal
new file mode 100644
index 0000000..e7d7ae1
--- /dev/null
+++ b/audio/effect/7.0/IEqualizerEffect.hal
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IEqualizerEffect extends IEffect {
+    /**
+     * Gets the number of frequency bands that the equalizer supports.
+     */
+    getNumBands() generates (Result retval, uint16_t numBands);
+
+    /**
+     * Returns the minimum and maximum band levels supported.
+     */
+    getLevelRange()
+            generates (Result retval, int16_t minLevel, int16_t maxLevel);
+
+    /**
+     * Sets the gain for the given equalizer band.
+     */
+    setBandLevel(uint16_t band, int16_t level) generates (Result retval);
+
+    /**
+     * Gets the gain for the given equalizer band.
+     */
+    getBandLevel(uint16_t band) generates (Result retval, int16_t level);
+
+    /**
+     * Gets the center frequency of the given band, in milliHertz.
+     */
+    getBandCenterFrequency(uint16_t band)
+            generates (Result retval, uint32_t centerFreqmHz);
+
+    /**
+     * Gets the frequency range of the given frequency band, in milliHertz.
+     */
+    getBandFrequencyRange(uint16_t band)
+            generates (Result retval, uint32_t minFreqmHz, uint32_t maxFreqmHz);
+
+    /**
+     * Gets the band that has the most effect on the given frequency
+     * in milliHertz.
+     */
+    getBandForFrequency(uint32_t freqmHz)
+            generates (Result retval, uint16_t band);
+
+    /**
+     * Gets the names of all presets the equalizer supports.
+     */
+    getPresetNames() generates (Result retval, vec<string> names);
+
+    /**
+     * Sets the current preset using the index of the preset in the names
+     * vector returned via 'getPresetNames'.
+     */
+    setCurrentPreset(uint16_t preset) generates (Result retval);
+
+    /**
+     * Gets the current preset.
+     */
+    getCurrentPreset() generates (Result retval, uint16_t preset);
+
+    struct AllProperties {
+        uint16_t curPreset;
+        vec<int16_t> bandLevels;
+    };
+
+    /**
+     * Sets all properties at once.
+     */
+    setAllProperties(AllProperties properties) generates (Result retval);
+
+    /**
+     * Gets all properties at once.
+     */
+    getAllProperties() generates (Result retval, AllProperties properties);
+};
diff --git a/audio/effect/7.0/ILoudnessEnhancerEffect.hal b/audio/effect/7.0/ILoudnessEnhancerEffect.hal
new file mode 100644
index 0000000..0304f20
--- /dev/null
+++ b/audio/effect/7.0/ILoudnessEnhancerEffect.hal
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface ILoudnessEnhancerEffect extends IEffect {
+    /**
+     * Sets target gain expressed in millibels.
+     */
+    setTargetGain(int32_t targetGainMb) generates (Result retval);
+
+    /**
+     * Gets target gain expressed in millibels.
+     */
+    getTargetGain() generates (Result retval, int32_t targetGainMb);
+};
diff --git a/audio/effect/7.0/INoiseSuppressionEffect.hal b/audio/effect/7.0/INoiseSuppressionEffect.hal
new file mode 100644
index 0000000..2c6210c
--- /dev/null
+++ b/audio/effect/7.0/INoiseSuppressionEffect.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface INoiseSuppressionEffect extends IEffect {
+    enum Level : int32_t {
+        LOW,
+        MEDIUM,
+        HIGH
+    };
+
+    /**
+     * Sets suppression level.
+     */
+    setSuppressionLevel(Level level) generates (Result retval);
+
+    /**
+     * Gets suppression level.
+     */
+    getSuppressionLevel() generates (Result retval, Level level);
+
+    enum Type : int32_t {
+        SINGLE_CHANNEL,
+        MULTI_CHANNEL
+    };
+
+    /**
+     * Set suppression type.
+     */
+    setSuppressionType(Type type) generates (Result retval);
+
+    /**
+     * Get suppression type.
+     */
+    getSuppressionType() generates (Result retval, Type type);
+
+    struct AllProperties {
+        Level level;
+        Type type;
+    };
+
+    /**
+     * Sets all properties at once.
+     */
+    setAllProperties(AllProperties properties) generates (Result retval);
+
+    /**
+     * Gets all properties at once.
+     */
+    getAllProperties() generates (Result retval, AllProperties properties);
+};
diff --git a/audio/effect/7.0/IPresetReverbEffect.hal b/audio/effect/7.0/IPresetReverbEffect.hal
new file mode 100644
index 0000000..da61d24
--- /dev/null
+++ b/audio/effect/7.0/IPresetReverbEffect.hal
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IPresetReverbEffect extends IEffect {
+    enum Preset : int32_t {
+        NONE,        // no reverb or reflections
+        SMALLROOM,   // a small room less than five meters in length
+        MEDIUMROOM,  // a medium room with a length of ten meters or less
+        LARGEROOM,   // a large-sized room suitable for live performances
+        MEDIUMHALL,  // a medium-sized hall
+        LARGEHALL,   // a large-sized hall suitable for a full orchestra
+        PLATE,       // synthesis of the traditional plate reverb
+        LAST = PLATE
+    };
+
+    /**
+     * Sets the current preset.
+     */
+    setPreset(Preset preset) generates (Result retval);
+
+    /**
+     * Gets the current preset.
+     */
+    getPreset() generates (Result retval, Preset preset);
+};
diff --git a/audio/effect/7.0/IVirtualizerEffect.hal b/audio/effect/7.0/IVirtualizerEffect.hal
new file mode 100644
index 0000000..141b4e6
--- /dev/null
+++ b/audio/effect/7.0/IVirtualizerEffect.hal
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IVirtualizerEffect extends IEffect {
+    /**
+     * Returns whether setting virtualization strength is supported.
+     */
+    isStrengthSupported() generates (bool strengthSupported);
+
+    enum StrengthRange : uint16_t {
+        MIN = 0,
+        MAX = 1000
+    };
+
+    /**
+     * Sets virtualization strength.
+     *
+     * @param strength strength of the effect. The valid range for strength
+     *                 strength is [0, 1000], where 0 per mille designates the
+     *                 mildest effect and 1000 per mille designates the
+     *                 strongest.
+     * @return retval operation completion status.
+     */
+    setStrength(uint16_t strength) generates (Result retval);
+
+    /**
+     * Gets virtualization strength.
+     */
+    getStrength() generates (Result retval, uint16_t strength);
+
+    struct SpeakerAngle {
+        /** Speaker channel mask */
+        vec<AudioChannelMask> mask;
+        // all angles are expressed in degrees and
+        // are relative to the listener.
+        int16_t azimuth; // 0 is the direction the listener faces
+                         // 180 is behind the listener
+                         // -90 is to their left
+        int16_t elevation; // 0 is the horizontal plane
+                           // +90 is above the listener, -90 is below
+    };
+    /**
+     * Retrieves virtual speaker angles for the given channel mask on the
+     * specified device.
+     */
+    getVirtualSpeakerAngles(vec<AudioChannelMask> mask, DeviceAddress device)
+            generates (Result retval, vec<SpeakerAngle> speakerAngles);
+
+    /**
+     * Forces the virtualizer effect for the given output device.
+     */
+    forceVirtualizationMode(DeviceAddress device) generates (Result retval);
+
+    /**
+     * Returns audio device reflecting the current virtualization mode,
+     * Device type can be empty when not virtualizing.
+     */
+    getVirtualizationMode() generates (Result retval, DeviceAddress device);
+};
diff --git a/audio/effect/7.0/IVisualizerEffect.hal b/audio/effect/7.0/IVisualizerEffect.hal
new file mode 100644
index 0000000..b4e8659
--- /dev/null
+++ b/audio/effect/7.0/IVisualizerEffect.hal
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+import IEffect;
+
+interface IVisualizerEffect extends IEffect {
+    enum CaptureSizeRange : int32_t {
+        MAX = 1024,  // maximum capture size in samples
+        MIN = 128    // minimum capture size in samples
+    };
+
+    /**
+     * Sets the number PCM samples in the capture.
+     */
+    setCaptureSize(uint16_t captureSize) generates (Result retval);
+
+    /**
+     * Gets the number PCM samples in the capture.
+     */
+    getCaptureSize() generates (Result retval, uint16_t captureSize);
+
+    enum ScalingMode : int32_t {
+        // Keep in sync with SCALING_MODE_... in
+        // frameworks/base/media/java/android/media/audiofx/Visualizer.java
+        NORMALIZED = 0,
+        AS_PLAYED = 1
+    };
+
+    /**
+     * Specifies the way the captured data is scaled.
+     */
+    setScalingMode(ScalingMode scalingMode) generates (Result retval);
+
+    /**
+     * Retrieves the way the captured data is scaled.
+     */
+    getScalingMode() generates (Result retval, ScalingMode scalingMode);
+
+    /**
+     * Informs the visualizer about the downstream latency.
+     */
+    setLatency(uint32_t latencyMs) generates (Result retval);
+
+    /**
+     * Gets the downstream latency.
+     */
+    getLatency() generates (Result retval, uint32_t latencyMs);
+
+    enum MeasurementMode : int32_t {
+        // Keep in sync with MEASUREMENT_MODE_... in
+        // frameworks/base/media/java/android/media/audiofx/Visualizer.java
+        NONE = 0x0,
+        PEAK_RMS = 0x1
+    };
+
+    /**
+     * Specifies which measurements are to be made.
+     */
+    setMeasurementMode(MeasurementMode measurementMode)
+            generates (Result retval);
+
+    /**
+     * Retrieves which measurements are to be made.
+     */
+    getMeasurementMode() generates (
+            Result retval, MeasurementMode measurementMode);
+
+    /**
+     * Retrieves the latest PCM snapshot captured by the visualizer engine.  The
+     * number of samples to capture is specified by 'setCaptureSize' parameter.
+     *
+     * @return retval operation completion status.
+     * @return samples samples in 8 bit unsigned format (0 = 0x80)
+     */
+    capture() generates (Result retval, vec<uint8_t> samples);
+
+    struct Measurement {
+        MeasurementMode mode;    // discriminator
+        union Values {
+            struct PeakAndRms {
+                int32_t peakMb;  // millibels
+                int32_t rmsMb;   // millibels
+            } peakAndRms;
+        } value;
+    };
+    /**
+     * Retrieves the latest measurements. The measurements to be made
+     * are specified by 'setMeasurementMode' parameter.
+     *
+     * @return retval operation completion status.
+     * @return result measurement.
+     */
+    measure() generates (Result retval, Measurement result);
+};
diff --git a/audio/effect/7.0/types.hal b/audio/effect/7.0/types.hal
new file mode 100644
index 0000000..fe4ee51
--- /dev/null
+++ b/audio/effect/7.0/types.hal
@@ -0,0 +1,301 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.audio.effect@7.0;
+
+import android.hardware.audio.common@7.0;
+
+enum Result : int32_t {
+    OK,
+    NOT_INITIALIZED,
+    INVALID_ARGUMENTS,
+    INVALID_STATE,
+    NOT_SUPPORTED,
+    RESULT_TOO_BIG
+};
+
+/**
+ * Effect engine capabilities/requirements flags.
+ *
+ * Definitions for flags field of effect descriptor.
+ *
+ * +----------------+--------+--------------------------------------------------
+ * | description    | bits   | values
+ * +----------------+--------+--------------------------------------------------
+ * | connection     | 0..2   | 0 insert: after track process
+ * | mode           |        | 1 auxiliary: connect to track auxiliary
+ * |                |        |  output and use send level
+ * |                |        | 2 replace: replaces track process function;
+ * |                |        |   must implement SRC, volume and mono to stereo.
+ * |                |        | 3 pre processing: applied below audio HAL on in
+ * |                |        | 4 post processing: applied below audio HAL on out
+ * |                |        | 5 - 7 reserved
+ * +----------------+--------+--------------------------------------------------
+ * | insertion      | 3..5   | 0 none
+ * | preference     |        | 1 first of the chain
+ * |                |        | 2 last of the chain
+ * |                |        | 3 exclusive (only effect in the insert chain)
+ * |                |        | 4..7 reserved
+ * +----------------+--------+--------------------------------------------------
+ * | Volume         | 6..8   | 0 none
+ * | management     |        | 1 implements volume control
+ * |                |        | 2 requires volume indication
+ * |                |        | 3 monitors requested volume
+ * |                |        | 4 reserved
+ * +----------------+--------+--------------------------------------------------
+ * | Device         | 9..11  | 0 none
+ * | indication     |        | 1 requires device updates
+ * |                |        | 2, 4 reserved
+ * +----------------+--------+--------------------------------------------------
+ * | Sample input   | 12..13 | 1 direct: process() function or
+ * | mode           |        |   EFFECT_CMD_SET_CONFIG command must specify
+ * |                |        |   a buffer descriptor
+ * |                |        | 2 provider: process() function uses the
+ * |                |        |   bufferProvider indicated by the
+ * |                |        |   EFFECT_CMD_SET_CONFIG command to request input.
+ * |                |        |   buffers.
+ * |                |        | 3 both: both input modes are supported
+ * +----------------+--------+--------------------------------------------------
+ * | Sample output  | 14..15 | 1 direct: process() function or
+ * | mode           |        |   EFFECT_CMD_SET_CONFIG command must specify
+ * |                |        |   a buffer descriptor
+ * |                |        | 2 provider: process() function uses the
+ * |                |        |   bufferProvider indicated by the
+ * |                |        |   EFFECT_CMD_SET_CONFIG command to request output
+ * |                |        |   buffers.
+ * |                |        | 3 both: both output modes are supported
+ * +----------------+--------+--------------------------------------------------
+ * | Hardware       | 16..17 | 0 No hardware acceleration
+ * | acceleration   |        | 1 non tunneled hw acceleration: the process()
+ * |                |        |   function reads the samples, send them to HW
+ * |                |        |   accelerated effect processor, reads back
+ * |                |        |   the processed samples and returns them
+ * |                |        |   to the output buffer.
+ * |                |        | 2 tunneled hw acceleration: the process()
+ * |                |        |   function is transparent. The effect interface
+ * |                |        |   is only used to control the effect engine.
+ * |                |        |   This mode is relevant for global effects
+ * |                |        |   actually applied by the audio hardware on
+ * |                |        |   the output stream.
+ * +----------------+--------+--------------------------------------------------
+ * | Audio Mode     | 18..19 | 0 none
+ * | indication     |        | 1 requires audio mode updates
+ * |                |        | 2..3 reserved
+ * +----------------+--------+--------------------------------------------------
+ * | Audio source   | 20..21 | 0 none
+ * | indication     |        | 1 requires audio source updates
+ * |                |        | 2..3 reserved
+ * +----------------+--------+--------------------------------------------------
+ * | Effect offload | 22     | 0 The effect cannot be offloaded to an audio DSP
+ * | supported      |        | 1 The effect can be offloaded to an audio DSP
+ * +----------------+--------+--------------------------------------------------
+ * | Process        | 23     | 0 The effect implements a process function.
+ * | function       |        | 1 The effect does not implement a process
+ * | not            |        |   function: enabling the effect has no impact
+ * | implemented    |        |   on latency or CPU load.
+ * |                |        |   Effect implementations setting this flag do not
+ * |                |        |   have to implement a process function.
+ * +----------------+--------+--------------------------------------------------
+ */
+@export(name="", value_prefix="EFFECT_FLAG_")
+enum EffectFlags : int32_t {
+    // Insert mode
+    TYPE_SHIFT = 0,
+    TYPE_SIZE = 3,
+    TYPE_MASK = ((1 << TYPE_SIZE) -1) << TYPE_SHIFT,
+    TYPE_INSERT = 0 << TYPE_SHIFT,
+    TYPE_AUXILIARY = 1 << TYPE_SHIFT,
+    TYPE_REPLACE = 2 << TYPE_SHIFT,
+    TYPE_PRE_PROC = 3 << TYPE_SHIFT,
+    TYPE_POST_PROC = 4 << TYPE_SHIFT,
+
+    // Insert preference
+    INSERT_SHIFT = TYPE_SHIFT + TYPE_SIZE,
+    INSERT_SIZE = 3,
+    INSERT_MASK = ((1 << INSERT_SIZE) -1) << INSERT_SHIFT,
+    INSERT_ANY = 0 << INSERT_SHIFT,
+    INSERT_FIRST = 1 << INSERT_SHIFT,
+    INSERT_LAST = 2 << INSERT_SHIFT,
+    INSERT_EXCLUSIVE = 3 << INSERT_SHIFT,
+
+    // Volume control
+    VOLUME_SHIFT = INSERT_SHIFT + INSERT_SIZE,
+    VOLUME_SIZE = 3,
+    VOLUME_MASK = ((1 << VOLUME_SIZE) -1) << VOLUME_SHIFT,
+    VOLUME_CTRL = 1 << VOLUME_SHIFT,
+    VOLUME_IND = 2 << VOLUME_SHIFT,
+    VOLUME_MONITOR = 3 << VOLUME_SHIFT,
+    VOLUME_NONE = 0 << VOLUME_SHIFT,
+
+    // Device indication
+    DEVICE_SHIFT = VOLUME_SHIFT + VOLUME_SIZE,
+    DEVICE_SIZE = 3,
+    DEVICE_MASK = ((1 << DEVICE_SIZE) -1) << DEVICE_SHIFT,
+    DEVICE_IND = 1 << DEVICE_SHIFT,
+    DEVICE_NONE = 0 << DEVICE_SHIFT,
+
+    // Sample input modes
+    INPUT_SHIFT = DEVICE_SHIFT + DEVICE_SIZE,
+    INPUT_SIZE = 2,
+    INPUT_MASK = ((1 << INPUT_SIZE) -1) << INPUT_SHIFT,
+    INPUT_DIRECT = 1 << INPUT_SHIFT,
+    INPUT_PROVIDER = 2 << INPUT_SHIFT,
+    INPUT_BOTH = 3 << INPUT_SHIFT,
+
+    // Sample output modes
+    OUTPUT_SHIFT = INPUT_SHIFT + INPUT_SIZE,
+    OUTPUT_SIZE = 2,
+    OUTPUT_MASK = ((1 << OUTPUT_SIZE) -1) << OUTPUT_SHIFT,
+    OUTPUT_DIRECT = 1 << OUTPUT_SHIFT,
+    OUTPUT_PROVIDER = 2 << OUTPUT_SHIFT,
+    OUTPUT_BOTH = 3 << OUTPUT_SHIFT,
+
+    // Hardware acceleration mode
+    HW_ACC_SHIFT = OUTPUT_SHIFT + OUTPUT_SIZE,
+    HW_ACC_SIZE = 2,
+    HW_ACC_MASK = ((1 << HW_ACC_SIZE) -1) << HW_ACC_SHIFT,
+    HW_ACC_SIMPLE = 1 << HW_ACC_SHIFT,
+    HW_ACC_TUNNEL = 2 << HW_ACC_SHIFT,
+
+    // Audio mode indication
+    AUDIO_MODE_SHIFT = HW_ACC_SHIFT + HW_ACC_SIZE,
+    AUDIO_MODE_SIZE = 2,
+    AUDIO_MODE_MASK = ((1 << AUDIO_MODE_SIZE) -1) << AUDIO_MODE_SHIFT,
+    AUDIO_MODE_IND = 1 << AUDIO_MODE_SHIFT,
+    AUDIO_MODE_NONE = 0 << AUDIO_MODE_SHIFT,
+
+    // Audio source indication
+    AUDIO_SOURCE_SHIFT = AUDIO_MODE_SHIFT + AUDIO_MODE_SIZE,
+    AUDIO_SOURCE_SIZE = 2,
+    AUDIO_SOURCE_MASK = ((1 << AUDIO_SOURCE_SIZE) -1) << AUDIO_SOURCE_SHIFT,
+    AUDIO_SOURCE_IND = 1 << AUDIO_SOURCE_SHIFT,
+    AUDIO_SOURCE_NONE = 0 << AUDIO_SOURCE_SHIFT,
+
+    // Effect offload indication
+    OFFLOAD_SHIFT = AUDIO_SOURCE_SHIFT + AUDIO_SOURCE_SIZE,
+    OFFLOAD_SIZE = 1,
+    OFFLOAD_MASK = ((1 << OFFLOAD_SIZE) -1) << OFFLOAD_SHIFT,
+    OFFLOAD_SUPPORTED = 1 << OFFLOAD_SHIFT,
+
+    // Effect has no process indication
+    NO_PROCESS_SHIFT = OFFLOAD_SHIFT + OFFLOAD_SIZE,
+    NO_PROCESS_SIZE = 1,
+    NO_PROCESS_MASK = ((1 << NO_PROCESS_SIZE) -1) << NO_PROCESS_SHIFT,
+    NO_PROCESS = 1 << NO_PROCESS_SHIFT
+};
+
+/**
+ * The effect descriptor contains necessary information to facilitate the
+ * enumeration of the effect engines present in a library.
+ */
+struct EffectDescriptor {
+    Uuid type;                   // UUID of to the OpenSL ES interface implemented
+                                 // by this effect
+    Uuid uuid;                   // UUID for this particular implementation
+    bitfield<EffectFlags> flags; // effect engine capabilities/requirements flags
+    uint16_t cpuLoad;            // CPU load indication expressed in 0.1 MIPS units
+                                 // as estimated on an ARM9E core (ARMv5TE) with 0 WS
+    uint16_t memoryUsage;        // data memory usage expressed in KB and includes
+                                 // only dynamically allocated memory
+    uint8_t[64] name;            // human readable effect name
+    uint8_t[64] implementor;     // human readable effect implementor name
+};
+
+/**
+ * A buffer is a chunk of audio data for processing.  Multi-channel audio is
+ * always interleaved. The channel order is from LSB to MSB with regard to the
+ * channel mask definition in audio.h, audio_channel_mask_t, e.g.:
+ * Stereo: L, R; 5.1: FL, FR, FC, LFE, BL, BR.
+ *
+ * The buffer size is expressed in frame count, a frame being composed of
+ * samples for all channels at a given time. Frame size for unspecified format
+ * (AUDIO_FORMAT_OTHER) is 8 bit by definition.
+ */
+struct AudioBuffer {
+    uint64_t id;
+    uint32_t frameCount;
+    memory data;
+};
+
+@export(name="effect_buffer_access_e", value_prefix="EFFECT_BUFFER_")
+enum EffectBufferAccess : int32_t {
+    ACCESS_WRITE,
+    ACCESS_READ,
+    ACCESS_ACCUMULATE
+};
+
+/**
+ * Determines what fields of EffectBufferConfig need to be considered.
+ */
+@export(name="", value_prefix="EFFECT_CONFIG_")
+enum EffectConfigParameters : int32_t {
+    BUFFER = 0x0001,    // buffer field
+    SMP_RATE = 0x0002,  // samplingRate
+    CHANNELS = 0x0004,  // channels
+    FORMAT = 0x0008,    // format
+    ACC_MODE = 0x0010,  // accessMode
+    // Note that the 2.0 ALL have been moved to an helper function
+};
+
+/**
+ * The buffer config structure specifies the input or output audio format
+ * to be used by the effect engine.
+ */
+struct EffectBufferConfig {
+    AudioBuffer buffer;
+    uint32_t samplingRateHz;
+    AudioChannelMask channels;
+    AudioFormat format;
+    EffectBufferAccess accessMode;
+    bitfield<EffectConfigParameters> mask;
+};
+
+struct EffectConfig {
+    EffectBufferConfig inputCfg;
+    EffectBufferConfig outputCfg;
+};
+
+@export(name="effect_feature_e", value_prefix="EFFECT_FEATURE_")
+enum EffectFeature : int32_t {
+    AUX_CHANNELS, // supports auxiliary channels
+                  // (e.g. dual mic noise suppressor)
+    CNT
+};
+
+struct EffectAuxChannelsConfig {
+    vec<AudioChannelMask> mainChannels;  // channel mask for main channels
+    vec<AudioChannelMask> auxChannels;   // channel mask for auxiliary channels
+};
+
+struct EffectOffloadParameter {
+    bool isOffload;          // true if the playback thread the effect
+                             // is attached to is offloaded
+    AudioIoHandle ioHandle;  // io handle of the playback thread
+                             // the effect is attached to
+};
+
+/**
+ * The message queue flags used to synchronize reads and writes from
+ * the status message queue used by effects.
+ */
+enum MessageQueueFlagBits : uint32_t {
+    DONE_PROCESSING = 1 << 0,
+    REQUEST_PROCESS = 1 << 1,
+    REQUEST_PROCESS_REVERSE = 1 << 2,
+    REQUEST_QUIT = 1 << 3,
+    REQUEST_PROCESS_ALL =
+        REQUEST_PROCESS | REQUEST_PROCESS_REVERSE | REQUEST_QUIT
+};
diff --git a/audio/effect/7.0/xml/Android.bp b/audio/effect/7.0/xml/Android.bp
new file mode 100644
index 0000000..dc12e63
--- /dev/null
+++ b/audio/effect/7.0/xml/Android.bp
@@ -0,0 +1,5 @@
+xsd_config {
+    name: "audio_effects_conf_V7_0",
+    srcs: ["audio_effects_conf.xsd"],
+    package_name: "audio.effects.V7_0",
+}
diff --git a/audio/effect/7.0/xml/api/current.txt b/audio/effect/7.0/xml/api/current.txt
new file mode 100644
index 0000000..34cb541
--- /dev/null
+++ b/audio/effect/7.0/xml/api/current.txt
@@ -0,0 +1,208 @@
+// Signature format: 2.0
+package audio.effects.V7_0 {
+
+  public class AudioEffectsConf {
+    ctor public AudioEffectsConf();
+    method public audio.effects.V7_0.AudioEffectsConf.DeviceEffects getDeviceEffects();
+    method public audio.effects.V7_0.EffectsType getEffects();
+    method public audio.effects.V7_0.LibrariesType getLibraries();
+    method public audio.effects.V7_0.AudioEffectsConf.Postprocess getPostprocess();
+    method public audio.effects.V7_0.AudioEffectsConf.Preprocess getPreprocess();
+    method public audio.effects.V7_0.VersionType getVersion();
+    method public void setDeviceEffects(audio.effects.V7_0.AudioEffectsConf.DeviceEffects);
+    method public void setEffects(audio.effects.V7_0.EffectsType);
+    method public void setLibraries(audio.effects.V7_0.LibrariesType);
+    method public void setPostprocess(audio.effects.V7_0.AudioEffectsConf.Postprocess);
+    method public void setPreprocess(audio.effects.V7_0.AudioEffectsConf.Preprocess);
+    method public void setVersion(audio.effects.V7_0.VersionType);
+  }
+
+  public static class AudioEffectsConf.DeviceEffects {
+    ctor public AudioEffectsConf.DeviceEffects();
+    method public java.util.List<audio.effects.V7_0.DeviceProcessType> getDevicePort();
+  }
+
+  public static class AudioEffectsConf.Postprocess {
+    ctor public AudioEffectsConf.Postprocess();
+    method public java.util.List<audio.effects.V7_0.StreamPostprocessType> getStream();
+  }
+
+  public static class AudioEffectsConf.Preprocess {
+    ctor public AudioEffectsConf.Preprocess();
+    method public java.util.List<audio.effects.V7_0.StreamPreprocessType> getStream();
+  }
+
+  public class DeviceProcessType extends audio.effects.V7_0.StreamProcessingType {
+    ctor public DeviceProcessType();
+    method public String getAddress();
+    method public audio.effects.V7_0.DeviceType getType();
+    method public void setAddress(String);
+    method public void setType(audio.effects.V7_0.DeviceType);
+  }
+
+  public enum DeviceType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_AUX_DIGITAL;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_BACK_MIC;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_BLUETOOTH_BLE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_BUILTIN_MIC;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_BUS;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_COMMUNICATION;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_ECHO_REFERENCE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_FM_TUNER;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_HDMI;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_HDMI_ARC;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_IP;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_LINE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_LOOPBACK;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_PROXY;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_REMOTE_SUBMIX;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_SPDIF;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_TELEPHONY_RX;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_TV_TUNER;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_USB_ACCESSORY;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_USB_DEVICE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_USB_HEADSET;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_VOICE_CALL;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_IN_WIRED_HEADSET;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_AUX_DIGITAL;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_AUX_LINE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_BUS;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_EARPIECE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_ECHO_CANCELLER;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_FM;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_HDMI;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_HDMI_ARC;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_HEARING_AID;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_IP;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_LINE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_PROXY;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_SPDIF;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_SPEAKER;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_SPEAKER_SAFE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_TELEPHONY_TX;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_USB_ACCESSORY;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_USB_DEVICE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_USB_HEADSET;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
+    enum_constant public static final audio.effects.V7_0.DeviceType AUDIO_DEVICE_OUT_WIRED_HEADSET;
+  }
+
+  public class EffectImplType {
+    ctor public EffectImplType();
+    method public String getLibrary();
+    method public String getUuid();
+    method public void setLibrary(String);
+    method public void setUuid(String);
+  }
+
+  public class EffectProxyType extends audio.effects.V7_0.EffectType {
+    ctor public EffectProxyType();
+    method public audio.effects.V7_0.EffectImplType getLibhw();
+    method public audio.effects.V7_0.EffectImplType getLibsw();
+    method public void setLibhw(audio.effects.V7_0.EffectImplType);
+    method public void setLibsw(audio.effects.V7_0.EffectImplType);
+  }
+
+  public class EffectType extends audio.effects.V7_0.EffectImplType {
+    ctor public EffectType();
+    method public String getName();
+    method public void setName(String);
+  }
+
+  public class EffectsType {
+    ctor public EffectsType();
+    method public java.util.List<audio.effects.V7_0.EffectProxyType> getEffectProxy_optional();
+    method public java.util.List<audio.effects.V7_0.EffectType> getEffect_optional();
+  }
+
+  public class LibrariesType {
+    ctor public LibrariesType();
+    method public java.util.List<audio.effects.V7_0.LibrariesType.Library> getLibrary();
+  }
+
+  public static class LibrariesType.Library {
+    ctor public LibrariesType.Library();
+    method public String getName();
+    method public String getPath();
+    method public void setName(String);
+    method public void setPath(String);
+  }
+
+  public enum StreamInputType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V7_0.StreamInputType camcorder;
+    enum_constant public static final audio.effects.V7_0.StreamInputType echo_reference;
+    enum_constant public static final audio.effects.V7_0.StreamInputType fm_tuner;
+    enum_constant public static final audio.effects.V7_0.StreamInputType mic;
+    enum_constant public static final audio.effects.V7_0.StreamInputType unprocessed;
+    enum_constant public static final audio.effects.V7_0.StreamInputType voice_call;
+    enum_constant public static final audio.effects.V7_0.StreamInputType voice_communication;
+    enum_constant public static final audio.effects.V7_0.StreamInputType voice_downlink;
+    enum_constant public static final audio.effects.V7_0.StreamInputType voice_performance;
+    enum_constant public static final audio.effects.V7_0.StreamInputType voice_recognition;
+    enum_constant public static final audio.effects.V7_0.StreamInputType voice_uplink;
+  }
+
+  public enum StreamOutputType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V7_0.StreamOutputType alarm;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType assistant;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType bluetooth_sco;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType dtmf;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType enforced_audible;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType music;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType notification;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType ring;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType system;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType tts;
+    enum_constant public static final audio.effects.V7_0.StreamOutputType voice_call;
+  }
+
+  public class StreamPostprocessType extends audio.effects.V7_0.StreamProcessingType {
+    ctor public StreamPostprocessType();
+    method public audio.effects.V7_0.StreamOutputType getType();
+    method public void setType(audio.effects.V7_0.StreamOutputType);
+  }
+
+  public class StreamPreprocessType extends audio.effects.V7_0.StreamProcessingType {
+    ctor public StreamPreprocessType();
+    method public audio.effects.V7_0.StreamInputType getType();
+    method public void setType(audio.effects.V7_0.StreamInputType);
+  }
+
+  public class StreamProcessingType {
+    ctor public StreamProcessingType();
+    method public java.util.List<audio.effects.V7_0.StreamProcessingType.Apply> getApply();
+  }
+
+  public static class StreamProcessingType.Apply {
+    ctor public StreamProcessingType.Apply();
+    method public String getEffect();
+    method public void setEffect(String);
+  }
+
+  public enum VersionType {
+    method public String getRawName();
+    enum_constant public static final audio.effects.V7_0.VersionType _2_0;
+  }
+
+  public class XmlParser {
+    ctor public XmlParser();
+    method public static audio.effects.V7_0.AudioEffectsConf read(java.io.InputStream) throws javax.xml.datatype.DatatypeConfigurationException, java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static String readText(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static void skip(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+  }
+
+}
+
diff --git a/audio/effect/7.0/xml/api/last_current.txt b/audio/effect/7.0/xml/api/last_current.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/effect/7.0/xml/api/last_current.txt
diff --git a/audio/effect/7.0/xml/api/last_removed.txt b/audio/effect/7.0/xml/api/last_removed.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/audio/effect/7.0/xml/api/last_removed.txt
diff --git a/audio/effect/7.0/xml/api/removed.txt b/audio/effect/7.0/xml/api/removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/audio/effect/7.0/xml/api/removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/audio/effect/7.0/xml/audio_effects_conf.xsd b/audio/effect/7.0/xml/audio_effects_conf.xsd
new file mode 100644
index 0000000..94f9f76
--- /dev/null
+++ b/audio/effect/7.0/xml/audio_effects_conf.xsd
@@ -0,0 +1,323 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           targetNamespace="http://schemas.android.com/audio/audio_effects_conf/v2_0"
+           xmlns:aec="http://schemas.android.com/audio/audio_effects_conf/v2_0"
+           elementFormDefault="qualified">
+  <!-- Simple types -->
+  <xs:simpleType name="versionType">
+    <xs:restriction base="xs:decimal">
+      <xs:enumeration value="2.0"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="uuidType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="streamInputType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="mic"/>
+      <xs:enumeration value="voice_uplink"/>
+      <xs:enumeration value="voice_downlink"/>
+      <xs:enumeration value="voice_call"/>
+      <xs:enumeration value="camcorder"/>
+      <xs:enumeration value="voice_recognition"/>
+      <xs:enumeration value="voice_communication"/>
+      <xs:enumeration value="unprocessed"/>
+      <xs:enumeration value="voice_performance"/>
+      <xs:enumeration value="echo_reference"/>
+      <xs:enumeration value="fm_tuner"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="streamOutputType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="voice_call"/>
+      <xs:enumeration value="system"/>
+      <xs:enumeration value="ring"/>
+      <xs:enumeration value="music"/>
+      <xs:enumeration value="alarm"/>
+      <xs:enumeration value="notification"/>
+      <xs:enumeration value="bluetooth_sco"/>
+      <xs:enumeration value="enforced_audible"/>
+      <xs:enumeration value="dtmf"/>
+      <xs:enumeration value="tts"/>
+      <xs:enumeration value="assistant"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="relativePathType">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="[^/].*"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="deviceType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="AUDIO_DEVICE_OUT_EARPIECE"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADPHONE"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_USB_ACCESSORY"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_USB_DEVICE"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_REMOTE_SUBMIX"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_TELEPHONY_TX"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_LINE"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI_ARC"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_SPDIF"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_FM"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_LINE"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER_SAFE"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_IP"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_BUS"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_PROXY"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_USB_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_HEARING_AID"/>
+      <xs:enumeration value="AUDIO_DEVICE_OUT_ECHO_CANCELLER"/>
+      <!-- Due to the xml format, IN types can not be a separated from OUT types -->
+      <xs:enumeration value="AUDIO_DEVICE_IN_COMMUNICATION"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_BUILTIN_MIC"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_WIRED_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_AUX_DIGITAL"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_HDMI"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_VOICE_CALL"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_TELEPHONY_RX"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_BACK_MIC"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_REMOTE_SUBMIX"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_USB_ACCESSORY"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_USB_DEVICE"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_FM_TUNER"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_TV_TUNER"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_LINE"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_SPDIF"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_A2DP"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_LOOPBACK"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_IP"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_BUS"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_PROXY"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_USB_HEADSET"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_BLE"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_HDMI_ARC"/>
+      <xs:enumeration value="AUDIO_DEVICE_IN_ECHO_REFERENCE"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <!-- Complex types -->
+  <xs:complexType name="librariesType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        List of effect libraries to load. Each library element must have "name" and
+        "path" attributes. The latter is giving the path of the library .so file
+        relative to the standard effect folders: /(vendor|odm|system)/lib(64)?/soundfx/
+        Example for a library in "/vendor/lib/soundfx/lib.so":
+        <library name="name" path="lib.so"/>
+      </xs:documentation>
+    </xs:annotation>
+    <xs:sequence>
+      <xs:element name="library" minOccurs="0" maxOccurs="unbounded">
+        <xs:complexType>
+          <xs:attribute name="name" type="xs:string" use="required"/>
+          <xs:attribute name="path" type="aec:relativePathType" use="required"/>
+        </xs:complexType>
+      </xs:element>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:complexType name="effectImplType">
+    <xs:attribute name="library" type="xs:string" use="required"/>
+    <xs:attribute name="uuid" type="aec:uuidType" use="required"/>
+  </xs:complexType>
+  <xs:complexType name="effectType">
+    <xs:complexContent>
+      <xs:extension base="aec:effectImplType">
+        <xs:attribute name="name" type="xs:string" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="effectProxyType">
+    <xs:complexContent>
+      <xs:extension base="aec:effectType">
+        <xs:sequence>
+          <xs:element name="libsw" type="aec:effectImplType"/>
+          <xs:element name="libhw" type="aec:effectImplType"/>
+        </xs:sequence>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="effectsType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        List of effects to load. Each effect element must contain "name",
+        "library", and "uuid" attrs. The value of the "library" attr must
+        correspond to the name of a "library" element. The name of the effect
+        element is indicative, only the value of the "uuid" element designates
+        the effect for the audio framework.  The uuid is the implementation
+        specific UUID as specified by the effect vendor. This is not the generic
+        effect type UUID.
+        For effect proxy implementations, SW and HW implementations of the effect
+        can be specified.
+        Example:
+        <effect name="name" library="lib" uuid="uuuu"/>
+        <effectProxy name="proxied" library="proxy" uuid="xxxx">
+            <libsw library="sw_bundle" uuid="yyyy"/>
+            <libhw library="offload_bundle" uuid="zzzz"/>
+        </effectProxy>
+      </xs:documentation>
+    </xs:annotation>
+    <xs:choice maxOccurs="unbounded">
+      <xs:element name="effect" type="aec:effectType" minOccurs="0" maxOccurs="unbounded"/>
+      <xs:element name="effectProxy" type="aec:effectProxyType" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:choice>
+  </xs:complexType>
+  <xs:complexType name="streamProcessingType">
+    <xs:sequence>
+      <xs:element name="apply" minOccurs="0" maxOccurs="unbounded">
+        <xs:complexType>
+          <xs:attribute name="effect" type="xs:string" use="required"/>
+        </xs:complexType>
+      </xs:element>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:complexType name="streamPreprocessType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        Audio preprocessing configuration. The processing configuration consists
+        of a list of elements each describing processing settings for a given
+        input stream. Valid input stream types are listed in "streamInputType".
+        Each stream element contains a list of "apply" elements. The value of the
+        "effect" attr must correspond to the name of an "effect" element.
+        Example:
+        <stream type="voice_communication">
+            <apply effect="effect1"/>
+            <apply effect="effect2"/>
+        </stream>
+      </xs:documentation>
+    </xs:annotation>
+    <xs:complexContent>
+      <xs:extension base="aec:streamProcessingType">
+        <xs:attribute name="type" type="aec:streamInputType" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="streamPostprocessType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        Audio postprocessing configuration. The processing configuration consists
+        of a list of elements each describing processing settings for a given
+        output stream. Valid output stream types are listed in "streamOutputType".
+        Each stream element contains a list of "apply" elements. The value of the
+        "effect" attr must correspond to the name of an "effect" element.
+        Example:
+        <stream type="music">
+            <apply effect="effect1"/>
+        </stream>
+      </xs:documentation>
+    </xs:annotation>
+    <xs:complexContent>
+      <xs:extension base="aec:streamProcessingType">
+        <xs:attribute name="type" type="aec:streamOutputType" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <xs:complexType name="deviceProcessType">
+    <xs:annotation>
+      <xs:documentation xml:lang="en">
+        Audio Device Effects configuration. The processing configuration consists
+        of a list of effects to be automatically added on a device Port when involved in an audio
+        patch.
+        Valid device type are listed in "deviceType" and shall be aligned.
+        Each stream element contains a list of "apply" elements. The value of the
+        "effect" attr must correspond to the name of an "effect" element.
+        Note that if the device is involved in a hardware patch, the effect must be hardware
+        accelerated.
+        Example:
+        <devicePort address="BUS00_USAGE_MAIN" type="AUDIO_DEVICE_OUT_BUS">
+            <apply effect="equalizer"/>
+            <apply effect="effect2"/>
+        </devicePort>
+      </xs:documentation>
+    </xs:annotation>
+    <xs:complexContent>
+      <xs:extension base="aec:streamProcessingType">
+         <xs:attribute name="address" type="xs:string" use="required"/>
+         <xs:attribute name="type" type="aec:deviceType" use="required"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  <!-- Root element -->
+  <xs:element name="audio_effects_conf">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element name="libraries" type="aec:librariesType"/>
+        <xs:element name="effects" type="aec:effectsType"/>
+        <xs:element name="postprocess" minOccurs="0" maxOccurs="1">
+          <xs:complexType>
+            <xs:sequence>
+              <xs:element name="stream" type="aec:streamPostprocessType" minOccurs="0" maxOccurs="unbounded"/>
+            </xs:sequence>
+          </xs:complexType>
+        </xs:element>
+        <xs:element name="preprocess" minOccurs="0" maxOccurs="1">
+          <xs:complexType>
+            <xs:sequence>
+              <xs:element name="stream" type="aec:streamPreprocessType" minOccurs="0" maxOccurs="unbounded"/>
+            </xs:sequence>
+          </xs:complexType>
+        </xs:element>
+        <xs:element name="deviceEffects" minOccurs="0" maxOccurs="1">
+          <xs:complexType>
+            <xs:sequence>
+              <xs:element name="devicePort" type="aec:deviceProcessType" minOccurs="0" maxOccurs="unbounded"/>
+            </xs:sequence>
+          </xs:complexType>
+        </xs:element>
+      </xs:sequence>
+      <xs:attribute name="version" type="aec:versionType" use="required"/>
+    </xs:complexType>
+    <!-- Keys and references -->
+    <xs:key name="libraryName">
+      <xs:selector xpath="aec:libraries/aec:library"/>
+      <xs:field xpath="@name"/>
+    </xs:key>
+    <xs:keyref name="libraryNameRef1" refer="aec:libraryName">
+      <xs:selector xpath="aec:effects/aec:effect"/>
+      <xs:field xpath="@library"/>
+    </xs:keyref>
+    <xs:keyref name="libraryNameRef2" refer="aec:libraryName">
+      <xs:selector xpath="aec:effects/aec:effect/aec:libsw"/>
+      <xs:field xpath="@library"/>
+    </xs:keyref>
+    <xs:keyref name="libraryNameRef3" refer="aec:libraryName">
+      <xs:selector xpath="aec:effects/aec:effect/aec:libhw"/>
+      <xs:field xpath="@library"/>
+    </xs:keyref>
+    <xs:key name="effectName">
+      <xs:selector xpath="aec:effects/aec:effect|aec:effects/aec:effectProxy"/>
+      <xs:field xpath="@name"/>
+    </xs:key>
+    <xs:keyref name="effectNamePreRef" refer="aec:effectName">
+      <xs:selector xpath="aec:preprocess/aec:stream/aec:apply"/>
+      <xs:field xpath="@effect"/>
+    </xs:keyref>
+    <xs:keyref name="effectNamePostRef" refer="aec:effectName">
+      <xs:selector xpath="aec:postprocess/aec:stream/aec:apply"/>
+      <xs:field xpath="@effect"/>
+    </xs:keyref>
+  </xs:element>
+</xs:schema>
diff --git a/audio/effect/all-versions/default/Android.bp b/audio/effect/all-versions/default/Android.bp
index d9bb78b..1c3dc74 100644
--- a/audio/effect/all-versions/default/Android.bp
+++ b/audio/effect/all-versions/default/Android.bp
@@ -56,7 +56,7 @@
         "-DMAJOR_VERSION=2",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_library_shared {
@@ -71,7 +71,7 @@
         "-DMAJOR_VERSION=4",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_library_shared {
@@ -86,7 +86,7 @@
         "-DMAJOR_VERSION=5",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_library_shared {
@@ -101,5 +101,21 @@
         "-DMAJOR_VERSION=6",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
+}
+
+cc_library_shared {
+    enabled: false,
+    name: "android.hardware.audio.effect@7.0-impl",
+    defaults: ["android.hardware.audio.effect-impl_default"],
+    shared_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.0-util",
+        "android.hardware.audio.effect@7.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
 }
diff --git a/audio/effect/all-versions/vts/functional/Android.bp b/audio/effect/all-versions/vts/functional/Android.bp
index 309aa9d..7cdb18f 100644
--- a/audio/effect/all-versions/vts/functional/Android.bp
+++ b/audio/effect/all-versions/vts/functional/Android.bp
@@ -19,7 +19,7 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: [
         "VtsHalAudioEffectTargetTest.cpp",
-        "ValidateAudioEffectsConfiguration.cpp"
+        "ValidateAudioEffectsConfiguration.cpp",
     ],
     static_libs: [
         "android.hardware.audio.common.test.utility",
@@ -31,7 +31,10 @@
     header_libs: [
         "android.hardware.audio.common.util@all-versions",
     ],
-    test_suites: ["general-tests", "vts"],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
 }
 
 cc_test {
@@ -51,7 +54,7 @@
         "-DMAJOR_VERSION=2",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_test {
@@ -71,7 +74,7 @@
         "-DMAJOR_VERSION=4",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_test {
@@ -91,7 +94,7 @@
         "-DMAJOR_VERSION=5",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
 }
 
 cc_test {
@@ -111,5 +114,26 @@
         "-DMAJOR_VERSION=6",
         "-DMINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",
-    ]
+    ],
+}
+
+cc_test {
+    enabled: false,
+    name: "VtsHalAudioEffectV7_0TargetTest",
+    defaults: ["VtsHalAudioEffectTargetTest_default"],
+    // Use test_config for vts suite.
+    // TODO(b/146104851): Add auto-gen rules and remove it.
+    test_config: "VtsHalAudioEffectV7_0TargetTest.xml",
+    static_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.effect@7.0",
+    ],
+    data: [
+        ":audio_effects_conf_V7_0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
 }
diff --git a/audio/effect/all-versions/vts/functional/VtsHalAudioEffectV7_0TargetTest.xml b/audio/effect/all-versions/vts/functional/VtsHalAudioEffectV7_0TargetTest.xml
new file mode 100644
index 0000000..e609756
--- /dev/null
+++ b/audio/effect/all-versions/vts/functional/VtsHalAudioEffectV7_0TargetTest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<configuration description="Runs VtsHalAudioEffectV7_0TargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
+    <target_preparer class="com.android.tradefed.targetprep.StopServicesSetup"/>
+
+    <target_preparer class="com.android.tradefed.targetprep.RunCommandTargetPreparer">
+        <option name="run-command" value="setprop vts.native_server.on 1"/>
+        <option name="teardown-command" value="setprop vts.native_server.on 0"/>
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="VtsHalAudioEffectV7_0TargetTest->/data/local/tmp/VtsHalAudioEffectV7_0TargetTest" />
+        <option name="push" value="audio_effects_conf_V7_0.xsd->/data/local/tmp/audio_effects_conf_V7_0.xsd" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalAudioEffectV7_0TargetTest" />
+    </test>
+</configuration>
diff --git a/automotive/can/1.0/default/libnetdevice/can.cpp b/automotive/can/1.0/default/libnetdevice/can.cpp
index 5a1105c..083f4f0 100644
--- a/automotive/can/1.0/default/libnetdevice/can.cpp
+++ b/automotive/can/1.0/default/libnetdevice/can.cpp
@@ -34,7 +34,7 @@
 static constexpr can_err_mask_t kErrMask = CAN_ERR_MASK;
 
 base::unique_fd socket(const std::string& ifname) {
-    struct sockaddr_can addr = {};
+    sockaddr_can addr = {};
     addr.can_family = AF_CAN;
     addr.can_ifindex = nametoindex(ifname);
     if (addr.can_ifindex == 0) {
@@ -58,7 +58,7 @@
         return {};
     }
 
-    if (0 != bind(sock.get(), reinterpret_cast<struct sockaddr*>(&addr), sizeof(addr))) {
+    if (0 != bind(sock.get(), reinterpret_cast<sockaddr*>(&addr), sizeof(addr))) {
         LOG(ERROR) << "Can't bind to CAN interface " << ifname;
         return {};
     }
@@ -67,26 +67,25 @@
 }
 
 bool setBitrate(std::string ifname, uint32_t bitrate) {
-    struct can_bittiming bt = {};
+    can_bittiming bt = {};
     bt.bitrate = bitrate;
 
-    nl::MessageFactory<struct ifinfomsg> req(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_ACK);
+    nl::MessageFactory<ifinfomsg> req(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_ACK);
 
-    const auto ifidx = nametoindex(ifname);
-    if (ifidx == 0) {
+    req->ifi_index = nametoindex(ifname);
+    if (req->ifi_index == 0) {
         LOG(ERROR) << "Can't find interface " << ifname;
         return false;
     }
-    req.data().ifi_index = ifidx;
 
     {
-        auto linkinfo = req.nest(IFLA_LINKINFO);
-        req.addattr(IFLA_INFO_KIND, "can");
+        auto linkinfo = req.addNested(IFLA_LINKINFO);
+        req.add(IFLA_INFO_KIND, "can");
         {
-            auto infodata = req.nest(IFLA_INFO_DATA);
+            auto infodata = req.addNested(IFLA_INFO_DATA);
             /* For CAN FD, it would require to add IFLA_CAN_DATA_BITTIMING
              * and IFLA_CAN_CTRLMODE as well. */
-            req.addattr(IFLA_CAN_BITTIMING, bt);
+            req.add(IFLA_CAN_BITTIMING, bt);
         }
     }
 
diff --git a/automotive/can/1.0/default/libnetdevice/include/libnetdevice/libnetdevice.h b/automotive/can/1.0/default/libnetdevice/include/libnetdevice/libnetdevice.h
index 9a26ff1..70cb688 100644
--- a/automotive/can/1.0/default/libnetdevice/include/libnetdevice/libnetdevice.h
+++ b/automotive/can/1.0/default/libnetdevice/include/libnetdevice/libnetdevice.h
@@ -20,6 +20,7 @@
 
 #include <array>
 #include <optional>
+#include <set>
 #include <string>
 
 namespace android::netdevice {
@@ -53,14 +54,34 @@
 std::optional<bool> isUp(std::string ifname);
 
 /**
- * Checks, if the network interface exists and is up.
- *
- * This is a convenience function to call both exists() and isUp().
- *
- * \param ifname Interface to check
- * \return true if the interface is up, false otherwise
+ * Interface condition to wait for.
  */
-bool existsAndIsUp(const std::string& ifname);
+enum class WaitCondition {
+    /**
+     * Interface is present (but not necessarily up).
+     */
+    PRESENT,
+
+    /**
+     * Interface is up.
+     */
+    PRESENT_AND_UP,
+
+    /**
+     * Interface is down or not present (disconnected) at all.
+     */
+    DOWN_OR_GONE,
+};
+
+/**
+ * Listens for interface changes until anticipated condition takes place.
+ *
+ * \param ifnames List of interfaces to watch for.
+ * \param cnd Awaited condition.
+ * \param allOf true if all interfaces need to satisfy the condition, false if only one satistying
+ *        interface should stop the wait.
+ */
+void waitFor(std::set<std::string> ifnames, WaitCondition cnd, bool allOf = true);
 
 /**
  * Brings network interface up.
diff --git a/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp b/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp
index e2ba2cb..4c5b309 100644
--- a/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp
+++ b/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp
@@ -27,6 +27,8 @@
 #include <linux/rtnetlink.h>
 #include <net/if.h>
 
+#include <sstream>
+
 namespace android::netdevice {
 
 void useSocketDomain(int domain) {
@@ -37,16 +39,6 @@
     return nametoindex(ifname) != 0;
 }
 
-std::optional<bool> isUp(std::string ifname) {
-    auto ifr = ifreqs::fromName(ifname);
-    if (!ifreqs::send(SIOCGIFFLAGS, ifr)) return std::nullopt;
-    return ifr.ifr_flags & IFF_UP;
-}
-
-bool existsAndIsUp(const std::string& ifname) {
-    return exists(ifname) && isUp(ifname).value_or(false);
-}
-
 bool up(std::string ifname) {
     auto ifr = ifreqs::fromName(ifname);
     if (!ifreqs::send(SIOCGIFFLAGS, ifr)) return false;
@@ -62,13 +54,13 @@
 }
 
 bool add(std::string dev, std::string type) {
-    nl::MessageFactory<struct ifinfomsg> req(RTM_NEWLINK,
-                                             NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK);
-    req.addattr(IFLA_IFNAME, dev);
+    nl::MessageFactory<ifinfomsg> req(RTM_NEWLINK,
+                                      NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK);
+    req.add(IFLA_IFNAME, dev);
 
     {
-        auto linkinfo = req.nest(IFLA_LINKINFO);
-        req.addattr(IFLA_INFO_KIND, type);
+        auto linkinfo = req.addNested(IFLA_LINKINFO);
+        req.add(IFLA_INFO_KIND, type);
     }
 
     nl::Socket sock(NETLINK_ROUTE);
@@ -76,8 +68,8 @@
 }
 
 bool del(std::string dev) {
-    nl::MessageFactory<struct ifinfomsg> req(RTM_DELLINK, NLM_F_REQUEST | NLM_F_ACK);
-    req.addattr(IFLA_IFNAME, dev);
+    nl::MessageFactory<ifinfomsg> req(RTM_DELLINK, NLM_F_REQUEST | NLM_F_ACK);
+    req.add(IFLA_IFNAME, dev);
 
     nl::Socket sock(NETLINK_ROUTE);
     return sock.send(req) && sock.receiveAck(req);
@@ -102,6 +94,97 @@
     return ifreqs::send(SIOCSIFHWADDR, ifr);
 }
 
+std::optional<bool> isUp(std::string ifname) {
+    auto ifr = ifreqs::fromName(ifname);
+    if (!ifreqs::send(SIOCGIFFLAGS, ifr)) return std::nullopt;
+    return ifr.ifr_flags & IFF_UP;
+}
+
+struct WaitState {
+    bool present;
+    bool up;
+
+    bool satisfied(WaitCondition cnd) const {
+        switch (cnd) {
+            case WaitCondition::PRESENT:
+                if (present) return true;
+                break;
+            case WaitCondition::PRESENT_AND_UP:
+                if (present && up) return true;
+                break;
+            case WaitCondition::DOWN_OR_GONE:
+                if (!present || !up) return true;
+                break;
+        }
+        return false;
+    }
+};
+
+static std::string toString(WaitCondition cnd) {
+    switch (cnd) {
+        case WaitCondition::PRESENT:
+            return "become present";
+        case WaitCondition::PRESENT_AND_UP:
+            return "come up";
+        case WaitCondition::DOWN_OR_GONE:
+            return "go down";
+    }
+}
+
+static std::string toString(const std::set<std::string>& ifnames) {
+    std::stringstream ss;
+    std::copy(ifnames.begin(), ifnames.end(), std::ostream_iterator<std::string>(ss, ","));
+    auto str = ss.str();
+    str.pop_back();
+    return str;
+}
+
+void waitFor(std::set<std::string> ifnames, WaitCondition cnd, bool allOf) {
+    nl::Socket sock(NETLINK_ROUTE, 0, RTMGRP_LINK);
+
+    using StatesMap = std::map<std::string, WaitState>;
+    StatesMap states = {};
+    for (const auto ifname : ifnames) {
+        const auto present = exists(ifname);
+        const auto up = present && isUp(ifname).value_or(false);
+        states[ifname] = {present, up};
+    }
+
+    const auto mapConditionChecker = [cnd](const StatesMap::iterator::value_type& it) {
+        return it.second.satisfied(cnd);
+    };
+    const auto isFullySatisfied = [&states, allOf, mapConditionChecker]() {
+        if (allOf) {
+            return std::all_of(states.begin(), states.end(), mapConditionChecker);
+        } else {
+            return std::any_of(states.begin(), states.end(), mapConditionChecker);
+        }
+    };
+
+    if (isFullySatisfied()) return;
+
+    LOG(DEBUG) << "Waiting for " << (allOf ? "" : "any of ") << toString(ifnames) << " to "
+               << toString(cnd);
+    for (const auto rawMsg : sock) {
+        const auto msg = nl::Message<ifinfomsg>::parse(rawMsg, {RTM_NEWLINK, RTM_DELLINK});
+        if (!msg.has_value()) continue;
+
+        const auto ifname = msg->attributes.get<std::string>(IFLA_IFNAME);
+        if (ifnames.count(ifname) == 0) continue;
+
+        const bool present = (msg->header.nlmsg_type != RTM_DELLINK);
+        const bool up = present && (msg->data.ifi_flags & IFF_UP) != 0;
+        states[ifname] = {present, up};
+
+        if (isFullySatisfied()) {
+            LOG(DEBUG) << "Finished waiting for " << (allOf ? "" : "some of ") << toString(ifnames)
+                       << " to " << toString(cnd);
+            return;
+        }
+    }
+    LOG(FATAL) << "Can't read Netlink socket";
+}
+
 }  // namespace android::netdevice
 
 bool operator==(const android::netdevice::hwaddr_t lhs, const unsigned char rhs[ETH_ALEN]) {
diff --git a/automotive/can/1.0/default/libnetdevice/vlan.cpp b/automotive/can/1.0/default/libnetdevice/vlan.cpp
index 33dc029..ee02f7b 100644
--- a/automotive/can/1.0/default/libnetdevice/vlan.cpp
+++ b/automotive/can/1.0/default/libnetdevice/vlan.cpp
@@ -33,18 +33,18 @@
         return false;
     }
 
-    nl::MessageFactory<struct ifinfomsg> req(RTM_NEWLINK,
-                                             NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK);
-    req.addattr(IFLA_IFNAME, vlan);
-    req.addattr<uint32_t>(IFLA_LINK, ethidx);
+    nl::MessageFactory<ifinfomsg> req(RTM_NEWLINK,
+                                      NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK);
+    req.add(IFLA_IFNAME, vlan);
+    req.add<uint32_t>(IFLA_LINK, ethidx);
 
     {
-        auto linkinfo = req.nest(IFLA_LINKINFO);
-        req.addattr(IFLA_INFO_KIND, "vlan");
+        auto linkinfo = req.addNested(IFLA_LINKINFO);
+        req.add(IFLA_INFO_KIND, "vlan");
 
         {
-            auto linkinfo = req.nest(IFLA_INFO_DATA);
-            req.addattr(IFLA_VLAN_ID, id);
+            auto linkinfo = req.addNested(IFLA_INFO_DATA);
+            req.add(IFLA_VLAN_ID, id);
         }
     }
 
diff --git a/automotive/can/1.0/default/libnl++/Attributes.cpp b/automotive/can/1.0/default/libnl++/Attributes.cpp
index c101647..620f57b 100644
--- a/automotive/can/1.0/default/libnl++/Attributes.cpp
+++ b/automotive/can/1.0/default/libnl++/Attributes.cpp
@@ -49,7 +49,11 @@
 template <>
 std::string Attributes::parse(Buffer<nlattr> buf) {
     const auto rawString = buf.data<char>().getRaw();
-    return std::string(rawString.ptr(), rawString.len());
+    std::string str(rawString.ptr(), rawString.len());
+
+    str.erase(std::find(str.begin(), str.end(), '\0'), str.end());
+
+    return str;
 }
 
 template <typename T>
diff --git a/automotive/can/1.0/default/libnl++/MessageFactory.cpp b/automotive/can/1.0/default/libnl++/MessageFactory.cpp
index 0c6a331..6f35897 100644
--- a/automotive/can/1.0/default/libnl++/MessageFactory.cpp
+++ b/automotive/can/1.0/default/libnl++/MessageFactory.cpp
@@ -17,41 +17,36 @@
 #include <libnl++/MessageFactory.h>
 
 #include <android-base/logging.h>
+#include <libnl++/bits.h>
 
-// for RTA_ macros missing from NLA_ definitions
-#include <linux/rtnetlink.h>
+namespace android::nl {
 
-namespace android::nl::impl {
-
-static struct nlattr* nlmsg_tail(struct nlmsghdr* n) {
-    return reinterpret_cast<struct nlattr*>(  //
-            reinterpret_cast<uintptr_t>(n) + NLMSG_ALIGN(n->nlmsg_len));
+static nlattr* tail(nlmsghdr* msg) {
+    return reinterpret_cast<nlattr*>(uintptr_t(msg) + impl::align(msg->nlmsg_len));
 }
 
-struct nlattr* addattr_l(struct nlmsghdr* n, size_t maxLen, nlattrtype_t type, const void* data,
-                         size_t dataLen) {
-    size_t newLen = NLMSG_ALIGN(n->nlmsg_len) + RTA_SPACE(dataLen);
+nlattr* MessageFactoryBase::add(nlmsghdr* msg, size_t maxLen, nlattrtype_t type, const void* data,
+                                size_t dataLen) {
+    const auto totalAttrLen = impl::space<nlattr>(dataLen);
+    const auto newLen = impl::align(msg->nlmsg_len) + totalAttrLen;
     if (newLen > maxLen) {
-        LOG(ERROR) << "addattr_l failed - exceeded maxLen: " << newLen << " > " << maxLen;
+        LOG(ERROR) << "Can't add attribute of size " << dataLen  //
+                   << " - exceeded maxLen: " << newLen << " > " << maxLen;
         return nullptr;
     }
 
-    auto attr = nlmsg_tail(n);
-    attr->nla_len = RTA_SPACE(dataLen);
+    auto attr = tail(msg);
+    attr->nla_len = totalAttrLen;
     attr->nla_type = type;
-    if (dataLen > 0) memcpy(RTA_DATA(attr), data, dataLen);
+    if (dataLen > 0) memcpy(impl::data<nlattr, void>(attr), data, dataLen);
 
-    n->nlmsg_len = newLen;
+    msg->nlmsg_len = newLen;
     return attr;
 }
 
-struct nlattr* addattr_nest(struct nlmsghdr* n, size_t maxLen, nlattrtype_t type) {
-    return addattr_l(n, maxLen, type, nullptr, 0);
+void MessageFactoryBase::closeNested(nlmsghdr* msg, nlattr* nested) {
+    if (nested == nullptr) return;
+    nested->nla_len = uintptr_t(tail(msg)) - uintptr_t(nested);
 }
 
-void addattr_nest_end(struct nlmsghdr* n, struct nlattr* nest) {
-    size_t nestLen = reinterpret_cast<uintptr_t>(nlmsg_tail(n)) - reinterpret_cast<uintptr_t>(nest);
-    nest->nla_len = nestLen;
-}
-
-}  // namespace android::nl::impl
+}  // namespace android::nl
diff --git a/automotive/can/1.0/default/libnl++/Socket.cpp b/automotive/can/1.0/default/libnl++/Socket.cpp
index 1a34df8..08683ca 100644
--- a/automotive/can/1.0/default/libnl++/Socket.cpp
+++ b/automotive/can/1.0/default/libnl++/Socket.cpp
@@ -49,8 +49,8 @@
 
 bool Socket::send(const Buffer<nlmsghdr>& msg, const sockaddr_nl& sa) {
     if constexpr (kSuperVerbose) {
-        LOG(VERBOSE) << (mFailed ? "(not) " : "") << "sending Netlink message ("  //
-                     << msg->nlmsg_pid << " -> " << sa.nl_pid << "): " << toString(msg, mProtocol);
+        LOG(VERBOSE) << (mFailed ? "(not) " : "") << "sending to " << sa.nl_pid << ": "
+                     << toString(msg, mProtocol);
     }
     if (mFailed) return false;
 
@@ -68,6 +68,16 @@
     return true;
 }
 
+bool Socket::increaseReceiveBuffer(size_t maxSize) {
+    if (maxSize == 0) {
+        LOG(ERROR) << "Maximum receive size should not be zero";
+        return false;
+    }
+
+    if (mReceiveBuffer.size() < maxSize) mReceiveBuffer.resize(maxSize);
+    return true;
+}
+
 std::optional<Buffer<nlmsghdr>> Socket::receive(size_t maxSize) {
     return receiveFrom(maxSize).first;
 }
@@ -75,11 +85,7 @@
 std::pair<std::optional<Buffer<nlmsghdr>>, sockaddr_nl> Socket::receiveFrom(size_t maxSize) {
     if (mFailed) return {std::nullopt, {}};
 
-    if (maxSize == 0) {
-        LOG(ERROR) << "Maximum receive size should not be zero";
-        return {std::nullopt, {}};
-    }
-    if (mReceiveBuffer.size() < maxSize) mReceiveBuffer.resize(maxSize);
+    if (!increaseReceiveBuffer(maxSize)) return {std::nullopt, {}};
 
     sockaddr_nl sa = {};
     socklen_t saLen = sizeof(sa);
@@ -97,8 +103,7 @@
 
     Buffer<nlmsghdr> msg(reinterpret_cast<nlmsghdr*>(mReceiveBuffer.data()), bytesReceived);
     if constexpr (kSuperVerbose) {
-        LOG(VERBOSE) << "received (" << sa.nl_pid << " -> " << msg->nlmsg_pid << "):"  //
-                     << toString(msg, mProtocol);
+        LOG(VERBOSE) << "received from " << sa.nl_pid << ": " << toString(msg, mProtocol);
     }
     return {msg, sa};
 }
@@ -121,19 +126,16 @@
 
 std::optional<Buffer<nlmsghdr>> Socket::receive(const std::set<nlmsgtype_t>& msgtypes,
                                                 size_t maxSize) {
-    while (!mFailed) {
-        const auto msgBuf = receive(maxSize);
-        if (!msgBuf.has_value()) return std::nullopt;
+    if (mFailed || !increaseReceiveBuffer(maxSize)) return std::nullopt;
 
-        for (const auto rawMsg : *msgBuf) {
-            if (msgtypes.count(rawMsg->nlmsg_type) == 0) {
-                LOG(WARNING) << "Received (and ignored) unexpected Netlink message of type "
-                             << rawMsg->nlmsg_type;
-                continue;
-            }
-
-            return rawMsg;
+    for (const auto rawMsg : *this) {
+        if (msgtypes.count(rawMsg->nlmsg_type) == 0) {
+            LOG(WARNING) << "Received (and ignored) unexpected Netlink message of type "
+                         << rawMsg->nlmsg_type;
+            continue;
         }
+
+        return rawMsg;
     }
 
     return std::nullopt;
@@ -151,4 +153,47 @@
     return sa.nl_pid;
 }
 
+Socket::receive_iterator::receive_iterator(Socket& socket, bool end)
+    : mSocket(socket), mIsEnd(end) {
+    if (!end) receive();
+}
+
+Socket::receive_iterator Socket::receive_iterator::operator++() {
+    CHECK(!mIsEnd) << "Trying to increment end iterator";
+    ++mCurrent;
+    if (mCurrent.isEnd()) receive();
+    return *this;
+}
+
+bool Socket::receive_iterator::operator==(const receive_iterator& other) const {
+    if (mIsEnd != other.mIsEnd) return false;
+    if (mIsEnd && other.mIsEnd) return true;
+    return mCurrent == other.mCurrent;
+}
+
+const Buffer<nlmsghdr>& Socket::receive_iterator::operator*() const {
+    CHECK(!mIsEnd) << "Trying to dereference end iterator";
+    return *mCurrent;
+}
+
+void Socket::receive_iterator::receive() {
+    CHECK(!mIsEnd) << "Trying to receive on end iterator";
+    CHECK(mCurrent.isEnd()) << "Trying to receive without draining previous read";
+
+    const auto buf = mSocket.receive();
+    if (buf.has_value()) {
+        mCurrent = buf->begin();
+    } else {
+        mIsEnd = true;
+    }
+}
+
+Socket::receive_iterator Socket::begin() {
+    return {*this, false};
+}
+
+Socket::receive_iterator Socket::end() {
+    return {*this, true};
+}
+
 }  // namespace android::nl
diff --git a/automotive/can/1.0/default/libnl++/common.cpp b/automotive/can/1.0/default/libnl++/common.cpp
index 74eee24..23c2d94 100644
--- a/automotive/can/1.0/default/libnl++/common.cpp
+++ b/automotive/can/1.0/default/libnl++/common.cpp
@@ -32,9 +32,7 @@
     return 0;
 }
 
-std::string sanitize(std::string str) {
-    str.erase(std::find(str.begin(), str.end(), '\0'), str.end());
-
+std::string printableOnly(std::string str) {
     const auto isInvalid = [](char c) { return !isprint(c); };
     std::replace_if(str.begin(), str.end(), isInvalid, '?');
 
diff --git a/automotive/can/1.0/default/libnl++/common.h b/automotive/can/1.0/default/libnl++/common.h
index 1d9dbab..38263c5 100644
--- a/automotive/can/1.0/default/libnl++/common.h
+++ b/automotive/can/1.0/default/libnl++/common.h
@@ -37,11 +37,14 @@
 unsigned int nametoindex(const std::string& ifname);
 
 /**
- * Sanitize a string of unknown contents.
+ * Filter a string against non-printable characters.
  *
- * Trims the string to the first '\0' character and replaces all non-printable characters with '?'.
+ * Replaces all non-printable characters with '?'.
+ *
+ * \param str String to filter.
+ * \return Filtered string.
  */
-std::string sanitize(std::string str);
+std::string printableOnly(std::string str);
 
 /**
  * Calculates a (optionally running) CRC16 checksum.
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/Buffer.h b/automotive/can/1.0/default/libnl++/include/libnl++/Buffer.h
index a6f8f7a..bf83fbc 100644
--- a/automotive/can/1.0/default/libnl++/include/libnl++/Buffer.h
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/Buffer.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <android-base/logging.h>
+#include <libnl++/bits.h>
 
 #include <linux/netlink.h>
 
@@ -25,7 +26,7 @@
 namespace android::nl {
 
 /**
- * Buffer wrapper containing netlink structure (e.g. struct nlmsghdr, struct nlattr).
+ * Buffer wrapper containing netlink structure (e.g. nlmsghdr, nlattr).
  *
  * This is a C++-style, memory safe(r) and generic implementation of linux/netlink.h macros.
  *
@@ -43,15 +44,6 @@
  */
 template <typename T>
 class Buffer {
-    // The following definitions are C++ equivalents of NLMSG_* macros from linux/netlink.h
-
-    static constexpr size_t alignto = NLMSG_ALIGNTO;
-    static_assert(NLMSG_ALIGNTO == NLA_ALIGNTO);
-
-    static constexpr size_t align(size_t ptr) { return (ptr + alignto - 1) & ~(alignto - 1); }
-
-    static constexpr size_t hdrlen = align(sizeof(T));
-
   public:
     /**
      * Constructs empty buffer of size 0.
@@ -96,35 +88,35 @@
 
     template <typename D>
     const Buffer<D> data(size_t offset = 0) const {
-        // Equivalent to NLMSG_DATA(hdr) + NLMSG_ALIGN(offset)
-        const D* dptr = reinterpret_cast<const D*>(uintptr_t(mData) + hdrlen + align(offset));
-        return {dptr, dataEnd()};
+        return {impl::data<const T, const D>(mData, offset), dataEnd()};
     }
 
     class iterator {
       public:
         iterator() : mCurrent(nullptr, size_t(0)) {
-            CHECK(!mCurrent.ok()) << "end() iterator should indicate it's beyond end";
+            CHECK(isEnd()) << "end() iterator should indicate it's beyond end";
         }
         iterator(const Buffer<T>& buf) : mCurrent(buf) {}
 
         iterator operator++() {
             // mBufferEnd stays the same
             mCurrent.mData = reinterpret_cast<const T*>(  //
-                    uintptr_t(mCurrent.mData) + align(mCurrent.declaredLength()));
+                    uintptr_t(mCurrent.mData) + impl::align(mCurrent.declaredLength()));
 
             return *this;
         }
 
         bool operator==(const iterator& other) const {
             // all iterators beyond end are the same
-            if (!mCurrent.ok() && !other.mCurrent.ok()) return true;
+            if (isEnd() && other.isEnd()) return true;
 
             return uintptr_t(other.mCurrent.mData) == uintptr_t(mCurrent.mData);
         }
 
         const Buffer<T>& operator*() const { return mCurrent; }
 
+        bool isEnd() const { return !mCurrent.ok(); }
+
       protected:
         Buffer<T> mCurrent;
     };
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/MessageFactory.h b/automotive/can/1.0/default/libnl++/include/libnl++/MessageFactory.h
index 5272577..c3d72c5 100644
--- a/automotive/can/1.0/default/libnl++/include/libnl++/MessageFactory.h
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/MessageFactory.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <android-base/macros.h>
+#include <libnl++/Buffer.h>
 #include <libnl++/types.h>
 
 #include <linux/netlink.h>
@@ -25,131 +26,140 @@
 
 namespace android::nl {
 
-/** Implementation details, do not use outside MessageFactory template. */
-namespace impl {
-
-struct nlattr* addattr_l(struct nlmsghdr* n, size_t maxLen, nlattrtype_t type, const void* data,
-                         size_t dataLen);
-struct nlattr* addattr_nest(struct nlmsghdr* n, size_t maxLen, nlattrtype_t type);
-void addattr_nest_end(struct nlmsghdr* n, struct nlattr* nest);
-
-}  // namespace impl
+class MessageFactoryBase {
+  protected:
+    static nlattr* add(nlmsghdr* msg, size_t maxLen, nlattrtype_t type, const void* data,
+                       size_t dataLen);
+    static void closeNested(nlmsghdr* msg, nlattr* nested);
+};
 
 /**
  * Wrapper around NETLINK_ROUTE messages, to build them in C++ style.
  *
- * \param T specific message header (such as struct ifinfomsg)
- * \param BUFSIZE how much space to reserve for payload (not counting the header size)
+ * \param T Message payload type (such as ifinfomsg).
+ * \param BUFSIZE how much space to reserve for attributes.
  */
 template <class T, unsigned int BUFSIZE = 128>
-struct MessageFactory {
-    struct RequestData {
-        struct nlmsghdr nlmsg;
+class MessageFactory : private MessageFactoryBase {
+    struct alignas(NLMSG_ALIGNTO) Message {
+        nlmsghdr header;
         T data;
-        char buf[BUFSIZE];
+        uint8_t attributesBuffer[BUFSIZE];
     };
 
-    static constexpr size_t totalLength = sizeof(RequestData);
-
+  public:
     /**
      * Create empty message.
      *
-     * \param type Message type (such as RTM_NEWLINK)
-     * \param flags Message flags (such as NLM_F_REQUEST)
+     * \param type Message type (such as RTM_NEWLINK).
+     * \param flags Message flags (such as NLM_F_REQUEST).
      */
-    MessageFactory(nlmsgtype_t type, uint16_t flags) {
-        mRequest.nlmsg.nlmsg_len = NLMSG_LENGTH(sizeof(mRequest.data));
-        mRequest.nlmsg.nlmsg_type = type;
-        mRequest.nlmsg.nlmsg_flags = flags;
+    MessageFactory(nlmsgtype_t type, uint16_t flags)
+        : header(mMessage.header), data(mMessage.data) {
+        mMessage.header.nlmsg_len = offsetof(Message, attributesBuffer);
+        mMessage.header.nlmsg_type = type;
+        mMessage.header.nlmsg_flags = flags;
     }
 
-    /** \return pointer to raw netlink message header. */
-    struct nlmsghdr* header() {
-        return &mRequest.nlmsg;
-    }
-    /** Reference to message-specific header. */
-    T& data() { return mRequest.data; }
-
     /**
-     * Adds an attribute of a simple type.
+     * Netlink message header.
      *
-     * If this method fails (i.e. due to insufficient space), the message will be marked
-     * as bad (\see isGood).
+     * This is a generic Netlink header containing information such as message flags.
+     */
+    nlmsghdr& header;
+
+    /**
+     * Netlink message data.
+     *
+     * This is a payload specific to a given message type.
+     */
+    T& data;
+
+    T* operator->() { return &mMessage.data; }
+
+    /**
+     * Build netlink message.
+     *
+     * In fact, this operation is almost a no-op, since the factory builds the message in a single
+     * buffer, using native data structures.
+     *
+     * A likely failure case is when the BUFSIZE template parameter is too small to acommodate
+     * added attributes. In such a case, please increase this parameter.
+     *
+     * \return Netlink message or std::nullopt in case of failure.
+     */
+    std::optional<Buffer<nlmsghdr>> build() const {
+        if (!mIsGood) return std::nullopt;
+        return {{&mMessage.header, mMessage.header.nlmsg_len}};
+    }
+
+    /**
+     * Adds an attribute of a trivially copyable type.
+     *
+     * Template specializations may extend this function for other types, such as std::string.
+     *
+     * If this method fails (i.e. due to insufficient space), a warning will be printed to the log
+     * and the message will be marked as bad, causing later \see build call to fail.
      *
      * \param type attribute type (such as IFLA_IFNAME)
      * \param attr attribute data
      */
     template <class A>
-    void addattr(nlattrtype_t type, const A& attr) {
-        if (!mIsGood) return;
-        auto ap = impl::addattr_l(&mRequest.nlmsg, sizeof(mRequest), type, &attr, sizeof(attr));
-        if (ap == nullptr) mIsGood = false;
+    void add(nlattrtype_t type, const A& attr) {
+        add(type, &attr, sizeof(attr));
     }
 
     template <>
-    void addattr(nlattrtype_t type, const std::string& s) {
-        if (!mIsGood) return;
-        auto ap = impl::addattr_l(&mRequest.nlmsg, sizeof(mRequest), type, s.c_str(), s.size() + 1);
-        if (ap == nullptr) mIsGood = false;
+    void add(nlattrtype_t type, const std::string& s) {
+        add(type, s.c_str(), s.size() + 1);
     }
 
-    /** Guard class to frame nested attributes. See nest(int). */
-    struct Nest {
-        Nest(MessageFactory& req, nlattrtype_t type) : mReq(req), mAttr(req.nestStart(type)) {}
-        ~Nest() { mReq.nestEnd(mAttr); }
+    /** Guard class to frame nested attributes. \see addNested(nlattrtype_t). */
+    class [[nodiscard]] NestedGuard {
+      public:
+        NestedGuard(MessageFactory & req, nlattrtype_t type) : mReq(req), mAttr(req.add(type)) {}
+        ~NestedGuard() { closeNested(&mReq.mMessage.header, mAttr); }
 
       private:
         MessageFactory& mReq;
-        struct nlattr* mAttr;
+        nlattr* mAttr;
 
-        DISALLOW_COPY_AND_ASSIGN(Nest);
+        DISALLOW_COPY_AND_ASSIGN(NestedGuard);
     };
 
     /**
      * Add nested attribute.
      *
      * The returned object is a guard for auto-nesting children inside the argument attribute.
-     * When the Nest object goes out of scope, the nesting attribute is closed.
+     * When the guard object goes out of scope, the nesting attribute is closed.
      *
      * Example usage nesting IFLA_CAN_BITTIMING inside IFLA_INFO_DATA, which is nested
      * inside IFLA_LINKINFO:
-     *    MessageFactory<struct ifinfomsg> req(RTM_NEWLINK, NLM_F_REQUEST);
+     *    MessageFactory<ifinfomsg> req(RTM_NEWLINK, NLM_F_REQUEST);
      *    {
-     *        auto linkinfo = req.nest(IFLA_LINKINFO);
-     *        req.addattr(IFLA_INFO_KIND, "can");
+     *        auto linkinfo = req.addNested(IFLA_LINKINFO);
+     *        req.add(IFLA_INFO_KIND, "can");
      *        {
-     *            auto infodata = req.nest(IFLA_INFO_DATA);
-     *            req.addattr(IFLA_CAN_BITTIMING, bitTimingStruct);
+     *            auto infodata = req.addNested(IFLA_INFO_DATA);
+     *            req.add(IFLA_CAN_BITTIMING, bitTimingStruct);
      *        }
      *    }
      *    // use req
      *
      * \param type attribute type (such as IFLA_LINKINFO)
      */
-    Nest nest(int type) { return Nest(*this, type); }
-
-    /**
-     * Indicates, whether the message is in a good state.
-     *
-     * The bad state is usually a result of payload buffer being too small.
-     * You can modify BUFSIZE template parameter to fix this.
-     */
-    bool isGood() const { return mIsGood; }
+    NestedGuard addNested(nlattrtype_t type) { return {*this, type}; }
 
   private:
+    Message mMessage = {};
     bool mIsGood = true;
-    RequestData mRequest = {};
 
-    struct nlattr* nestStart(nlattrtype_t type) {
+    nlattr* add(nlattrtype_t type, const void* data = nullptr, size_t len = 0) {
         if (!mIsGood) return nullptr;
-        auto attr = impl::addattr_nest(&mRequest.nlmsg, sizeof(mRequest), type);
+        auto attr = MessageFactoryBase::add(&mMessage.header, sizeof(mMessage), type, data, len);
         if (attr == nullptr) mIsGood = false;
         return attr;
     }
-
-    void nestEnd(struct nlattr* nest) {
-        if (mIsGood && nest != nullptr) impl::addattr_nest_end(&mRequest.nlmsg, nest);
-    }
 };
 
 }  // namespace android::nl
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/Socket.h b/automotive/can/1.0/default/libnl++/include/libnl++/Socket.h
index 16b63f5..c69523d 100644
--- a/automotive/can/1.0/default/libnl++/include/libnl++/Socket.h
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/Socket.h
@@ -76,13 +76,12 @@
      */
     template <typename T, unsigned BUFSIZE>
     bool send(MessageFactory<T, BUFSIZE>& req, const sockaddr_nl& sa) {
-        if (!req.isGood()) return false;
+        req.header.nlmsg_seq = mSeq + 1;
 
-        const auto nlmsg = req.header();
-        nlmsg->nlmsg_seq = mSeq + 1;
+        const auto msg = req.build();
+        if (!msg.has_value()) return false;
 
-        // With MessageFactory<>, we trust nlmsg_len to be correct.
-        return send({nlmsg, nlmsg->nlmsg_len}, sa);
+        return send(*msg, sa);
     }
 
     /**
@@ -156,7 +155,7 @@
      */
     template <typename T, unsigned BUFSIZE>
     bool receiveAck(MessageFactory<T, BUFSIZE>& req) {
-        return receiveAck(req.header()->nlmsg_seq);
+        return receiveAck(req.header.nlmsg_seq);
     }
 
     /**
@@ -174,6 +173,42 @@
      */
     std::optional<unsigned> getPid();
 
+    /**
+     * Live iterator continuously receiving messages from Netlink socket.
+     *
+     * Iteration ends when socket fails to receive a buffer.
+     *
+     * Example:
+     * ```
+     *     nl::Socket sock(NETLINK_ROUTE, 0, RTMGRP_LINK);
+     *     for (const auto rawMsg : sock) {
+     *         const auto msg = nl::Message<ifinfomsg>::parse(rawMsg, {RTM_NEWLINK, RTM_DELLINK});
+     *         if (!msg.has_value()) continue;
+     *
+     *         LOG(INFO) << msg->attributes.get<std::string>(IFLA_IFNAME)
+     *                   << " is " << ((msg->data.ifi_flags & IFF_UP) ? "up" : "down");
+     *     }
+     *     LOG(FATAL) << "Failed to read from Netlink socket";
+     * ```
+     */
+    class receive_iterator {
+      public:
+        receive_iterator(Socket& socket, bool end);
+
+        receive_iterator operator++();
+        bool operator==(const receive_iterator& other) const;
+        const Buffer<nlmsghdr>& operator*() const;
+
+      private:
+        Socket& mSocket;
+        bool mIsEnd;
+        Buffer<nlmsghdr>::iterator mCurrent;
+
+        void receive();
+    };
+    receive_iterator begin();
+    receive_iterator end();
+
   private:
     const int mProtocol;
     base::unique_fd mFd;
@@ -182,6 +217,7 @@
     bool mFailed = false;
     uint32_t mSeq = 0;
 
+    bool increaseReceiveBuffer(size_t maxSize);
     std::optional<Buffer<nlmsghdr>> receive(const std::set<nlmsgtype_t>& msgtypes, size_t maxSize);
 
     DISALLOW_COPY_AND_ASSIGN(Socket);
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/bits.h b/automotive/can/1.0/default/libnl++/include/libnl++/bits.h
new file mode 100644
index 0000000..4c8f1aa
--- /dev/null
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/bits.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <linux/netlink.h>
+
+namespace android::nl::impl {
+
+// The following definitions are C++ equivalents of NLMSG_* macros from linux/netlink.h.
+
+/**
+ * Equivalent to NLMSG_ALIGNTO.
+ */
+constexpr size_t alignto = NLMSG_ALIGNTO;
+static_assert(NLMSG_ALIGNTO == NLA_ALIGNTO);
+
+/**
+ * Equivalent to NLMSG_ALIGN(len).
+ */
+constexpr size_t align(size_t len) {
+    return (len + alignto - 1) & ~(alignto - 1);
+}
+
+/**
+ * Equivalent to NLMSG_SPACE(len).
+ */
+template <typename H>
+constexpr size_t space(size_t len) {
+    return align(align(sizeof(H)) + len);
+}
+
+/**
+ * Equivalent to NLMSG_DATA(hdr) + NLMSG_ALIGN(offset).
+ */
+template <typename H, typename D>
+constexpr D* data(H* header, size_t offset = 0) {
+    return reinterpret_cast<D*>(uintptr_t(header) + space<H>(offset));
+}
+
+}  // namespace android::nl::impl
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/printer.h b/automotive/can/1.0/default/libnl++/include/libnl++/printer.h
index 53a06d8..3570918 100644
--- a/automotive/can/1.0/default/libnl++/include/libnl++/printer.h
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/printer.h
@@ -32,6 +32,6 @@
  * \param printPayload True will stringify message data, false will only stringify the header(s).
  * \return Stringified message.
  */
-std::string toString(const Buffer<nlmsghdr> hdr, int protocol, bool printPayload = false);
+std::string toString(const Buffer<nlmsghdr> hdr, int protocol, bool printPayload = true);
 
 }  // namespace android::nl
diff --git a/automotive/can/1.0/default/libnl++/printer.cpp b/automotive/can/1.0/default/libnl++/printer.cpp
index 9735db1..e6cada2 100644
--- a/automotive/can/1.0/default/libnl++/printer.cpp
+++ b/automotive/can/1.0/default/libnl++/printer.cpp
@@ -28,10 +28,10 @@
 
 namespace android::nl {
 
-static void flagsToStream(std::stringstream& ss, __u16 nlmsg_flags) {
+static void flagsToStream(std::stringstream& ss, __u16 nlmsg_flags, protocols::MessageGenre genre) {
     bool first = true;
     auto printFlag = [&ss, &first, &nlmsg_flags](__u16 flag, const std::string& name) {
-        if (!(nlmsg_flags & flag)) return;
+        if ((nlmsg_flags & flag) != flag) return;
         nlmsg_flags &= ~flag;
 
         if (first) {
@@ -42,6 +42,7 @@
 
         ss << name;
     };
+
     printFlag(NLM_F_REQUEST, "REQUEST");
     printFlag(NLM_F_MULTI, "MULTI");
     printFlag(NLM_F_ACK, "ACK");
@@ -49,11 +50,29 @@
     printFlag(NLM_F_DUMP_INTR, "DUMP_INTR");
     printFlag(NLM_F_DUMP_FILTERED, "DUMP_FILTERED");
 
-    // TODO(twasilczyk): print flags depending on request type
-    printFlag(NLM_F_ROOT, "ROOT-REPLACE");
-    printFlag(NLM_F_MATCH, "MATCH-EXCL");
-    printFlag(NLM_F_ATOMIC, "ATOMIC-CREATE");
-    printFlag(NLM_F_APPEND, "APPEND");
+    switch (genre) {
+        case protocols::MessageGenre::UNKNOWN:
+            break;
+        case protocols::MessageGenre::GET:
+            printFlag(NLM_F_DUMP, "DUMP");  // ROOT | MATCH
+            printFlag(NLM_F_ROOT, "ROOT");
+            printFlag(NLM_F_MATCH, "MATCH");
+            printFlag(NLM_F_ATOMIC, "ATOMIC");
+            break;
+        case protocols::MessageGenre::NEW:
+            printFlag(NLM_F_REPLACE, "REPLACE");
+            printFlag(NLM_F_EXCL, "EXCL");
+            printFlag(NLM_F_CREATE, "CREATE");
+            printFlag(NLM_F_APPEND, "APPEND");
+            break;
+        case protocols::MessageGenre::DELETE:
+            printFlag(NLM_F_NONREC, "NONREC");
+            break;
+        case protocols::MessageGenre::ACK:
+            printFlag(NLM_F_CAPPED, "CAPPED");
+            printFlag(NLM_F_ACK_TLVS, "ACK_TLVS");
+            break;
+    }
 
     if (nlmsg_flags != 0) {
         if (!first) ss << '|';
@@ -100,7 +119,7 @@
         }
         case DataType::String: {
             const auto str = attr.data<char>().getRaw();
-            ss << '"' << sanitize({str.ptr(), str.len()}) << '"';
+            ss << '"' << printableOnly({str.ptr(), str.len()}) << '"';
             break;
         }
         case DataType::Uint:
@@ -128,27 +147,26 @@
     }
     protocols::NetlinkProtocol& protocolDescr = *protocolMaybe;
 
-    auto msgDescMaybe = protocolDescr.getMessageDescriptor(hdr->nlmsg_type);
-    const auto msgTypeName = msgDescMaybe.has_value()
-                                     ? msgDescMaybe->get().getMessageName(hdr->nlmsg_type)
-                                     : std::to_string(hdr->nlmsg_type);
+    const auto msgDescMaybe = protocolDescr.getMessageDescriptor(hdr->nlmsg_type);
+    const auto msgDetails =
+            protocols::MessageDescriptor::getMessageDetails(msgDescMaybe, hdr->nlmsg_type);
 
     ss << "nlmsg{" << protocolDescr.getName() << " ";
 
     ss << "hdr={";
-    ss << "type=" << msgTypeName;
+    ss << "type=" << msgDetails.name;
     if (hdr->nlmsg_flags != 0) {
         ss << ", flags=";
-        flagsToStream(ss, hdr->nlmsg_flags);
+        flagsToStream(ss, hdr->nlmsg_flags, msgDetails.genre);
     }
     if (hdr->nlmsg_seq != 0) ss << ", seq=" << hdr->nlmsg_seq;
     if (hdr->nlmsg_pid != 0) ss << ", pid=" << hdr->nlmsg_pid;
     ss << ", len=" << hdr->nlmsg_len;
-
     ss << ", crc=" << std::hex << std::setw(4) << crc16(hdr.data<uint8_t>()) << std::dec;
-    ss << "} ";
+    ss << '}';
 
     if (!printPayload) return ss.str();
+    ss << ' ';
 
     if (!msgDescMaybe.has_value()) {
         toStream(ss, hdr.data<uint8_t>());
diff --git a/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.cpp b/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.cpp
index dc56643..c93d865 100644
--- a/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.cpp
@@ -32,11 +32,12 @@
     return find(nla_type)->second;
 }
 
-MessageDescriptor::MessageDescriptor(const std::string& name, const MessageTypeMap&& messageTypes,
+MessageDescriptor::MessageDescriptor(const std::string& name,
+                                     const MessageDetailsMap&& messageDetails,
                                      const AttributeMap&& attrTypes, size_t contentsSize)
     : mName(name),
       mContentsSize(contentsSize),
-      mMessageTypes(messageTypes),
+      mMessageDetails(messageDetails),
       mAttributeMap(attrTypes) {}
 
 MessageDescriptor::~MessageDescriptor() {}
@@ -45,18 +46,25 @@
     return mContentsSize;
 }
 
-const MessageDescriptor::MessageTypeMap& MessageDescriptor::getMessageTypeMap() const {
-    return mMessageTypes;
+const MessageDescriptor::MessageDetailsMap& MessageDescriptor::getMessageDetailsMap() const {
+    return mMessageDetails;
 }
 
 const AttributeMap& MessageDescriptor::getAttributeMap() const {
     return mAttributeMap;
 }
 
-const std::string MessageDescriptor::getMessageName(nlmsgtype_t msgtype) const {
-    const auto it = mMessageTypes.find(msgtype);
-    if (it == mMessageTypes.end()) return "?";
+MessageDescriptor::MessageDetails MessageDescriptor::getMessageDetails(nlmsgtype_t msgtype) const {
+    const auto it = mMessageDetails.find(msgtype);
+    if (it == mMessageDetails.end()) return {std::to_string(msgtype), MessageGenre::UNKNOWN};
     return it->second;
 }
 
+MessageDescriptor::MessageDetails MessageDescriptor::getMessageDetails(
+        const std::optional<std::reference_wrapper<const MessageDescriptor>>& msgDescMaybe,
+        nlmsgtype_t msgtype) {
+    if (msgDescMaybe.has_value()) return msgDescMaybe->get().getMessageDetails(msgtype);
+    return {std::to_string(msgtype), protocols::MessageGenre::UNKNOWN};
+}
+
 }  // namespace android::nl::protocols
diff --git a/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.h b/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.h
index ef73d09..bd0e60f 100644
--- a/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.h
+++ b/automotive/can/1.0/default/libnl++/protocols/MessageDefinition.h
@@ -68,30 +68,53 @@
 };
 
 /**
+ * General message type's kind.
+ *
+ * For example, RTM_NEWLINK is a NEW kind. For details, please see "Flags values"
+ * section in linux/netlink.h.
+ */
+enum class MessageGenre {
+    UNKNOWN,
+    GET,
+    NEW,
+    DELETE,
+    ACK,
+};
+
+/**
  * Message family descriptor.
  *
  * Describes the structure of all message types with the same header and attributes.
  */
 class MessageDescriptor {
-  protected:
-    typedef std::map<nlmsgtype_t, std::string> MessageTypeMap;
-
-    MessageDescriptor(const std::string& name, const MessageTypeMap&& messageTypes,
-                      const AttributeMap&& attrTypes, size_t contentsSize);
+  public:
+    struct MessageDetails {
+        std::string name;
+        MessageGenre genre;
+    };
+    typedef std::map<nlmsgtype_t, MessageDetails> MessageDetailsMap;
 
   public:
     virtual ~MessageDescriptor();
 
     size_t getContentsSize() const;
-    const MessageTypeMap& getMessageTypeMap() const;
+    const MessageDetailsMap& getMessageDetailsMap() const;
     const AttributeMap& getAttributeMap() const;
-    const std::string getMessageName(nlmsgtype_t msgtype) const;
+    MessageDetails getMessageDetails(nlmsgtype_t msgtype) const;
     virtual void dataToStream(std::stringstream& ss, const Buffer<nlmsghdr> hdr) const = 0;
 
+    static MessageDetails getMessageDetails(
+            const std::optional<std::reference_wrapper<const MessageDescriptor>>& msgDescMaybe,
+            nlmsgtype_t msgtype);
+
+  protected:
+    MessageDescriptor(const std::string& name, const MessageDetailsMap&& messageDetails,
+                      const AttributeMap&& attrTypes, size_t contentsSize);
+
   private:
     const std::string mName;
     const size_t mContentsSize;
-    const MessageTypeMap mMessageTypes;
+    const MessageDetailsMap mMessageDetails;
     const AttributeMap mAttributeMap;
 };
 
@@ -103,11 +126,11 @@
 template <typename T>
 class MessageDefinition : public MessageDescriptor {
   public:
-    MessageDefinition(
+    MessageDefinition(  //
             const std::string& name,
-            const std::initializer_list<MessageDescriptor::MessageTypeMap::value_type> messageTypes,
+            const std::initializer_list<MessageDescriptor::MessageDetailsMap::value_type> msgDet,
             const std::initializer_list<AttributeMap::value_type> attrTypes = {})
-        : MessageDescriptor(name, messageTypes, attrTypes, sizeof(T)) {}
+        : MessageDescriptor(name, msgDet, attrTypes, sizeof(T)) {}
 
     void dataToStream(std::stringstream& ss, const Buffer<nlmsghdr> hdr) const override {
         const auto& [ok, msg] = hdr.data<T>().getFirst();
diff --git a/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.cpp b/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.cpp
index 4b795d9..cd2e8c6 100644
--- a/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.cpp
@@ -18,7 +18,7 @@
 
 namespace android::nl::protocols {
 
-NetlinkProtocol::NetlinkProtocol(int protocol, const std::string name,
+NetlinkProtocol::NetlinkProtocol(int protocol, const std::string& name,
                                  const MessageDescriptorList&& messageDescrs)
     : mProtocol(protocol), mName(name), mMessageDescrs(toMap(messageDescrs, protocol)) {}
 
@@ -42,7 +42,7 @@
         const NetlinkProtocol::MessageDescriptorList& descrs, int protocol) {
     MessageDescriptorMap map;
     for (const auto& descr : descrs) {
-        for (const auto& [mtype, mname] : descr->getMessageTypeMap()) {
+        for (const auto& [mtype, mdet] : descr->getMessageDetailsMap()) {
             map.emplace(mtype, descr);
         }
     }
@@ -53,7 +53,7 @@
     };
 
     for (const auto& descr : baseDescriptors) {
-        for (const auto& [mtype, mname] : descr->getMessageTypeMap()) {
+        for (const auto& [mtype, mdet] : descr->getMessageDetailsMap()) {
             map.emplace(mtype, descr);
         }
     }
diff --git a/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.h b/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.h
index 81a0a65..c969547 100644
--- a/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.h
+++ b/automotive/can/1.0/default/libnl++/protocols/NetlinkProtocol.h
@@ -46,7 +46,7 @@
   protected:
     typedef std::vector<std::shared_ptr<const MessageDescriptor>> MessageDescriptorList;
 
-    NetlinkProtocol(int protocol, const std::string name,
+    NetlinkProtocol(int protocol, const std::string& name,
                     const MessageDescriptorList&& messageDescrs);
 
   private:
diff --git a/automotive/can/1.0/default/libnl++/protocols/common/Empty.cpp b/automotive/can/1.0/default/libnl++/protocols/common/Empty.cpp
index dbf10d4..8a672d3 100644
--- a/automotive/can/1.0/default/libnl++/protocols/common/Empty.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/common/Empty.cpp
@@ -20,9 +20,9 @@
 
 // clang-format off
 Empty::Empty() : MessageDefinition<char>("nlmsg", {
-    {NLMSG_NOOP, "NOOP"},
-    {NLMSG_DONE, "DONE"},
-    {NLMSG_OVERRUN, "OVERRUN"},
+    {NLMSG_NOOP, {"NOOP", MessageGenre::UNKNOWN}},
+    {NLMSG_DONE, {"DONE", MessageGenre::UNKNOWN}},
+    {NLMSG_OVERRUN, {"OVERRUN", MessageGenre::UNKNOWN}},
 }) {}
 // clang-format on
 
diff --git a/automotive/can/1.0/default/libnl++/protocols/common/Error.cpp b/automotive/can/1.0/default/libnl++/protocols/common/Error.cpp
index 1d6bd1c..44708a3 100644
--- a/automotive/can/1.0/default/libnl++/protocols/common/Error.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/common/Error.cpp
@@ -22,15 +22,21 @@
 
 namespace android::nl::protocols::base {
 
+using DataType = AttributeDefinition::DataType;
+
 // clang-format off
 Error::Error(int protocol) : MessageDefinition<nlmsgerr>("nlmsg", {
-    {NLMSG_ERROR, "ERROR"},
+    {NLMSG_ERROR, {"ERROR", MessageGenre::ACK}},
+}, {
+    {NLMSGERR_ATTR_MSG, {"MSG", DataType::String}},
+    {NLMSGERR_ATTR_OFFS, {"OFFS", DataType::Uint}},
+    {NLMSGERR_ATTR_COOKIE, {"COOKIE", DataType::Raw}},
 }), mProtocol(protocol) {}
 // clang-format on
 
 void Error::toStream(std::stringstream& ss, const nlmsgerr& data) const {
     ss << "nlmsgerr{error=" << data.error
-       << ", msg=" << toString({&data.msg, sizeof(data.msg)}, mProtocol) << "}";
+       << ", msg=" << toString({&data.msg, sizeof(data.msg)}, mProtocol, false) << "}";
 }
 
 }  // namespace android::nl::protocols::base
diff --git a/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp b/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp
index 5203368..134638e 100644
--- a/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp
@@ -19,13 +19,14 @@
 namespace android::nl::protocols::generic {
 
 GenericMessageBase::GenericMessageBase(
-        nlmsgtype_t msgtype, std::string msgname,
+        nlmsgtype_t msgtype, const std::string&& msgname,
         const std::initializer_list<GenericCommandNameMap::value_type> commandNames,
         const std::initializer_list<AttributeMap::value_type> attrTypes)
-    : MessageDefinition<struct genlmsghdr>(msgname, {{msgtype, msgname}}, attrTypes),
+    : MessageDefinition<genlmsghdr>(msgname, {{msgtype, {msgname, MessageGenre::UNKNOWN}}},
+                                    attrTypes),
       mCommandNames(commandNames) {}
 
-void GenericMessageBase::toStream(std::stringstream& ss, const struct genlmsghdr& data) const {
+void GenericMessageBase::toStream(std::stringstream& ss, const genlmsghdr& data) const {
     ss << "genlmsghdr{";
     if (mCommandNames.count(data.cmd) == 0) {
         ss << "cmd=" << unsigned(data.cmd);
diff --git a/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.h b/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.h
index f3b0b31..443f10c 100644
--- a/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.h
+++ b/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.h
@@ -22,16 +22,16 @@
 
 namespace android::nl::protocols::generic {
 
-class GenericMessageBase : public MessageDefinition<struct genlmsghdr> {
+class GenericMessageBase : public MessageDefinition<genlmsghdr> {
   public:
     typedef std::map<uint8_t, std::string> GenericCommandNameMap;
 
     GenericMessageBase(
-            nlmsgtype_t msgtype, std::string msgname,
+            nlmsgtype_t msgtype, const std::string&& msgname,
             const std::initializer_list<GenericCommandNameMap::value_type> commandNames = {},
             const std::initializer_list<AttributeMap::value_type> attrTypes = {});
 
-    void toStream(std::stringstream& ss, const struct genlmsghdr& data) const override;
+    void toStream(std::stringstream& ss, const genlmsghdr& data) const override;
 
   private:
     const GenericCommandNameMap mCommandNames;
diff --git a/automotive/can/1.0/default/libnl++/protocols/route/Link.cpp b/automotive/can/1.0/default/libnl++/protocols/route/Link.cpp
index 26d3e3e..7db487a 100644
--- a/automotive/can/1.0/default/libnl++/protocols/route/Link.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/route/Link.cpp
@@ -25,10 +25,10 @@
 using DataType = AttributeDefinition::DataType;
 
 // clang-format off
-Link::Link() : MessageDefinition<struct ifinfomsg>("link", {
-    {RTM_NEWLINK, "NEWLINK"},
-    {RTM_DELLINK, "DELLINK"},
-    {RTM_GETLINK, "GETLINK"},
+Link::Link() : MessageDefinition<ifinfomsg>("link", {
+    {RTM_NEWLINK, {"NEWLINK", MessageGenre::NEW}},
+    {RTM_DELLINK, {"DELLINK", MessageGenre::DELETE}},
+    {RTM_GETLINK, {"GETLINK", MessageGenre::GET}},
 }, {
     {IFLA_ADDRESS, {"ADDRESS"}},
     {IFLA_BROADCAST, {"BROADCAST"}},
@@ -107,7 +107,7 @@
 }) {}
 // clang-format off
 
-void Link::toStream(std::stringstream& ss, const struct ifinfomsg& data) const {
+void Link::toStream(std::stringstream& ss, const ifinfomsg& data) const {
     ss << "ifinfomsg{"
        << "family=" << unsigned(data.ifi_family) << ", type=" << data.ifi_type
        << ", index=" << data.ifi_index << ", flags=" << data.ifi_flags
diff --git a/automotive/can/1.0/default/libnl++/protocols/route/Link.h b/automotive/can/1.0/default/libnl++/protocols/route/Link.h
index 4ea3eba..ecfefc9 100644
--- a/automotive/can/1.0/default/libnl++/protocols/route/Link.h
+++ b/automotive/can/1.0/default/libnl++/protocols/route/Link.h
@@ -22,10 +22,10 @@
 
 namespace android::nl::protocols::route {
 
-class Link : public MessageDefinition<struct ifinfomsg> {
+class Link : public MessageDefinition<ifinfomsg> {
   public:
     Link();
-    void toStream(std::stringstream& ss, const struct ifinfomsg& data) const override;
+    void toStream(std::stringstream& ss, const ifinfomsg& data) const override;
 };
 
 }  // namespace android::nl::protocols::route
diff --git a/automotive/evs/1.0/default/EvsCamera.cpp b/automotive/evs/1.0/default/EvsCamera.cpp
index e0782ec..0daea5a 100644
--- a/automotive/evs/1.0/default/EvsCamera.cpp
+++ b/automotive/evs/1.0/default/EvsCamera.cpp
@@ -49,7 +49,7 @@
 
     mDescription.cameraId = id;
 
-    // Set up dummy data for testing
+    // Set up mock data for testing
     if (mDescription.cameraId == kCameraName_Backup) {
         mWidth  = 640;          // full NTSC/VGA
         mHeight = 480;          // full NTSC/VGA
diff --git a/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp b/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp
index 7fe7a33..ad607d8 100644
--- a/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp
+++ b/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp
@@ -369,7 +369,7 @@
 TEST_P(EvsHidlTest, CameraStreamBuffering) {
     ALOGI("Starting CameraStreamBuffering test");
 
-    // Arbitrary constant (should be > 1 and less than crazy)
+    // Arbitrary constant (should be > 1 and not too big)
     static const unsigned int kBuffersToHold = 6;
 
     // Get the camera list
@@ -381,7 +381,7 @@
         sp<IEvsCamera> pCam = pEnumerator->openCamera(cam.cameraId);
         ASSERT_NE(pCam, nullptr);
 
-        // Ask for a crazy number of buffers in flight to ensure it errors correctly
+        // Ask for a very large number of buffers in flight to ensure it errors correctly
         Return<EvsResult> badResult = pCam->setMaxFramesInFlight(0xFFFFFFFF);
         EXPECT_EQ(EvsResult::BUFFER_NOT_AVAILABLE, badResult);
 
diff --git a/automotive/evs/1.1/default/ConfigManager.h b/automotive/evs/1.1/default/ConfigManager.h
index 870af1c..b0b2670 100644
--- a/automotive/evs/1.1/default/ConfigManager.h
+++ b/automotive/evs/1.1/default/ConfigManager.h
@@ -76,7 +76,7 @@
         }
 
         /*
-         * List of supported controls that the master client can program.
+         * List of supported controls that the primary client can program.
          * Paraemters are stored with its valid range
          */
         unordered_map<CameraParam,
diff --git a/automotive/evs/1.1/default/EvsEnumerator.cpp b/automotive/evs/1.1/default/EvsEnumerator.cpp
index 117ee7a..d066471 100644
--- a/automotive/evs/1.1/default/EvsEnumerator.cpp
+++ b/automotive/evs/1.1/default/EvsEnumerator.cpp
@@ -70,7 +70,7 @@
 
     // Add ultrasonics array desc.
     sUltrasonicsArrayRecordList.emplace_back(
-            EvsUltrasonicsArray::GetDummyArrayDesc("front_array"));
+            EvsUltrasonicsArray::GetMockArrayDesc("front_array"));
 }
 
 
diff --git a/automotive/evs/1.1/default/EvsUltrasonicsArray.cpp b/automotive/evs/1.1/default/EvsUltrasonicsArray.cpp
index bc69aa4..ebd47c6 100644
--- a/automotive/evs/1.1/default/EvsUltrasonicsArray.cpp
+++ b/automotive/evs/1.1/default/EvsUltrasonicsArray.cpp
@@ -45,7 +45,7 @@
 
 namespace {
 
-void fillDummyArrayDesc(UltrasonicsArrayDesc& arrayDesc) {
+void fillMockArrayDesc(UltrasonicsArrayDesc& arrayDesc) {
     arrayDesc.maxReadingsPerSensorCount = kMaxReadingsPerSensor;
     arrayDesc.maxReceiversCount = kMaxReceiversCount;
 
@@ -99,8 +99,8 @@
     }
 }
 
-// Fills dataFrameDesc with dummy data.
-bool fillDummyDataFrame(UltrasonicsDataFrameDesc& dataFrameDesc, sp<IMemory> pIMemory) {
+// Fills dataFrameDesc with mock data.
+bool fillMockDataFrame(UltrasonicsDataFrameDesc& dataFrameDesc, sp<IMemory> pIMemory) {
     dataFrameDesc.timestampNs = elapsedRealtimeNano();
 
     const std::vector<uint8_t> transmittersIdList = {0};
@@ -137,9 +137,9 @@
     : mFramesAllowed(0), mFramesInUse(0), mStreamState(STOPPED) {
     LOG(DEBUG) << "EvsUltrasonicsArray instantiated";
 
-    // Set up dummy data for description.
+    // Set up mock data for description.
     mArrayDesc.ultrasonicsArrayId = deviceName;
-    fillDummyArrayDesc(mArrayDesc);
+    fillMockArrayDesc(mArrayDesc);
 
     // Assign allocator.
     mShmemAllocator = IAllocator::getService("ashmem");
@@ -182,10 +182,10 @@
     mStreamState = DEAD;
 }
 
-UltrasonicsArrayDesc EvsUltrasonicsArray::GetDummyArrayDesc(const char* deviceName) {
+UltrasonicsArrayDesc EvsUltrasonicsArray::GetMockArrayDesc(const char* deviceName) {
     UltrasonicsArrayDesc ultrasonicsArrayDesc;
     ultrasonicsArrayDesc.ultrasonicsArrayId = deviceName;
-    fillDummyArrayDesc(ultrasonicsArrayDesc);
+    fillMockArrayDesc(ultrasonicsArrayDesc);
     return ultrasonicsArrayDesc;
 }
 
@@ -497,17 +497,17 @@
 
         if (timeForFrame) {
             // Assemble the buffer description we'll transmit below
-            UltrasonicsDataFrameDesc dummyDataFrameDesc;
-            dummyDataFrameDesc.dataFrameId = idx;
-            dummyDataFrameDesc.waveformsData = mDataFrames[idx].sharedMemory.hidlMemory;
+            UltrasonicsDataFrameDesc mockDataFrameDesc;
+            mockDataFrameDesc.dataFrameId = idx;
+            mockDataFrameDesc.waveformsData = mDataFrames[idx].sharedMemory.hidlMemory;
 
-            // Fill dummy waveform data.
-            fillDummyDataFrame(dummyDataFrameDesc, mDataFrames[idx].sharedMemory.pIMemory);
+            // Fill mock waveform data.
+            fillMockDataFrame(mockDataFrameDesc, mDataFrames[idx].sharedMemory.pIMemory);
 
             // Issue the (asynchronous) callback to the client -- can't be holding the lock
-            auto result = mStream->deliverDataFrame(dummyDataFrameDesc);
+            auto result = mStream->deliverDataFrame(mockDataFrameDesc);
             if (result.isOk()) {
-                LOG(DEBUG) << "Delivered data frame id: " << dummyDataFrameDesc.dataFrameId;
+                LOG(DEBUG) << "Delivered data frame id: " << mockDataFrameDesc.dataFrameId;
             } else {
                 // This can happen if the client dies and is likely unrecoverable.
                 // To avoid consuming resources generating failing calls, we stop sending
diff --git a/automotive/evs/1.1/default/EvsUltrasonicsArray.h b/automotive/evs/1.1/default/EvsUltrasonicsArray.h
index 7a41012..88aa600 100644
--- a/automotive/evs/1.1/default/EvsUltrasonicsArray.h
+++ b/automotive/evs/1.1/default/EvsUltrasonicsArray.h
@@ -58,7 +58,7 @@
     static sp<EvsUltrasonicsArray> Create(const char* deviceName);
 
     // Returns a ultrasonics array descriptor filled with sample data.
-    static UltrasonicsArrayDesc GetDummyArrayDesc(const char* id);
+    static UltrasonicsArrayDesc GetMockArrayDesc(const char* id);
 
     DISALLOW_COPY_AND_ASSIGN(EvsUltrasonicsArray);
     virtual ~EvsUltrasonicsArray() override;
diff --git a/automotive/evs/1.1/vts/functional/VtsHalEvsV1_1TargetTest.cpp b/automotive/evs/1.1/vts/functional/VtsHalEvsV1_1TargetTest.cpp
index 4398fb1..638ecd5 100644
--- a/automotive/evs/1.1/vts/functional/VtsHalEvsV1_1TargetTest.cpp
+++ b/automotive/evs/1.1/vts/functional/VtsHalEvsV1_1TargetTest.cpp
@@ -500,7 +500,7 @@
 TEST_P(EvsHidlTest, CameraStreamBuffering) {
     LOG(INFO) << "Starting CameraStreamBuffering test";
 
-    // Arbitrary constant (should be > 1 and less than crazy)
+    // Arbitrary constant (should be > 1 and not too big)
     static const unsigned int kBuffersToHold = 6;
 
     // Get the camera list
@@ -527,7 +527,7 @@
         // Store a camera handle for a clean-up
         activeCameras.push_back(pCam);
 
-        // Ask for a crazy number of buffers in flight to ensure it errors correctly
+        // Ask for a very large number of buffers in flight to ensure it errors correctly
         Return<EvsResult> badResult = pCam->setMaxFramesInFlight(0xFFFFFFFF);
         EXPECT_EQ(EvsResult::BUFFER_NOT_AVAILABLE, badResult);
 
@@ -930,12 +930,12 @@
 
 
 /*
- * CameraMasterRelease
- * Verify that non-master client gets notified when the master client either
+ * CameraPrimaryClientRelease
+ * Verify that non-primary client gets notified when the primary client either
  * terminates or releases a role.
  */
-TEST_P(EvsHidlTest, CameraMasterRelease) {
-    LOG(INFO) << "Starting CameraMasterRelease test";
+TEST_P(EvsHidlTest, CameraPrimaryClientRelease) {
+    LOG(INFO) << "Starting CameraPrimaryClientRelease test";
 
     if (mIsHwModule) {
         // This test is not for HW module implementation.
@@ -961,57 +961,57 @@
         }
 
         // Create two camera clients.
-        sp<IEvsCamera_1_1> pCamMaster =
+        sp<IEvsCamera_1_1> pCamPrimary =
             IEvsCamera_1_1::castFrom(pEnumerator->openCamera_1_1(cam.v1.cameraId, nullCfg))
             .withDefault(nullptr);
-        ASSERT_NE(pCamMaster, nullptr);
+        ASSERT_NE(pCamPrimary, nullptr);
 
         // Store a camera handle for a clean-up
-        activeCameras.push_back(pCamMaster);
+        activeCameras.push_back(pCamPrimary);
 
-        sp<IEvsCamera_1_1> pCamNonMaster =
+        sp<IEvsCamera_1_1> pCamSecondary =
             IEvsCamera_1_1::castFrom(pEnumerator->openCamera_1_1(cam.v1.cameraId, nullCfg))
             .withDefault(nullptr);
-        ASSERT_NE(pCamNonMaster, nullptr);
+        ASSERT_NE(pCamSecondary, nullptr);
 
         // Store a camera handle for a clean-up
-        activeCameras.push_back(pCamNonMaster);
+        activeCameras.push_back(pCamSecondary);
 
         // Set up per-client frame receiver objects which will fire up its own thread
-        sp<FrameHandler> frameHandlerMaster =
-            new FrameHandler(pCamMaster, cam,
+        sp<FrameHandler> frameHandlerPrimary =
+            new FrameHandler(pCamPrimary, cam,
                              nullptr,
                              FrameHandler::eAutoReturn);
-        ASSERT_NE(frameHandlerMaster, nullptr);
-        sp<FrameHandler> frameHandlerNonMaster =
-            new FrameHandler(pCamNonMaster, cam,
+        ASSERT_NE(frameHandlerPrimary, nullptr);
+        sp<FrameHandler> frameHandlerSecondary =
+            new FrameHandler(pCamSecondary, cam,
                              nullptr,
                              FrameHandler::eAutoReturn);
-        ASSERT_NE(frameHandlerNonMaster, nullptr);
+        ASSERT_NE(frameHandlerSecondary, nullptr);
 
-        // Set one client as the master
-        EvsResult result = pCamMaster->setMaster();
+        // Set one client as the primary client
+        EvsResult result = pCamPrimary->setMaster();
         ASSERT_TRUE(result == EvsResult::OK);
 
-        // Try to set another client as the master.
-        result = pCamNonMaster->setMaster();
+        // Try to set another client as the primary client.
+        result = pCamSecondary->setMaster();
         ASSERT_TRUE(result == EvsResult::OWNERSHIP_LOST);
 
-        // Start the camera's video stream via a master client.
-        bool startResult = frameHandlerMaster->startStream();
+        // Start the camera's video stream via a primary client client.
+        bool startResult = frameHandlerPrimary->startStream();
         ASSERT_TRUE(startResult);
 
         // Ensure the stream starts
-        frameHandlerMaster->waitForFrameCount(1);
+        frameHandlerPrimary->waitForFrameCount(1);
 
         // Start the camera's video stream via another client
-        startResult = frameHandlerNonMaster->startStream();
+        startResult = frameHandlerSecondary->startStream();
         ASSERT_TRUE(startResult);
 
         // Ensure the stream starts
-        frameHandlerNonMaster->waitForFrameCount(1);
+        frameHandlerSecondary->waitForFrameCount(1);
 
-        // Non-master client expects to receive a master role relesed
+        // Non-primary client expects to receive a primary client role relesed
         // notification.
         EvsEventDesc aTargetEvent  = {};
         EvsEventDesc aNotification = {};
@@ -1020,14 +1020,14 @@
         std::mutex eventLock;
         std::condition_variable eventCond;
         std::thread listener = std::thread(
-            [&aNotification, &frameHandlerNonMaster, &listening, &eventCond]() {
+            [&aNotification, &frameHandlerSecondary, &listening, &eventCond]() {
                 // Notify that a listening thread is running.
                 listening = true;
                 eventCond.notify_all();
 
                 EvsEventDesc aTargetEvent;
                 aTargetEvent.aType = EvsEventType::MASTER_RELEASED;
-                if (!frameHandlerNonMaster->waitForEvent(aTargetEvent, aNotification, true)) {
+                if (!frameHandlerSecondary->waitForEvent(aTargetEvent, aNotification, true)) {
                     LOG(WARNING) << "A timer is expired before a target event is fired.";
                 }
 
@@ -1043,8 +1043,8 @@
         }
         lock.unlock();
 
-        // Release a master role.
-        pCamMaster->unsetMaster();
+        // Release a primary client role.
+        pCamPrimary->unsetMaster();
 
         // Join a listening thread.
         if (listener.joinable()) {
@@ -1055,24 +1055,24 @@
         ASSERT_EQ(EvsEventType::MASTER_RELEASED,
                   static_cast<EvsEventType>(aNotification.aType));
 
-        // Non-master becomes a master.
-        result = pCamNonMaster->setMaster();
+        // Non-primary becomes a primary client.
+        result = pCamSecondary->setMaster();
         ASSERT_TRUE(result == EvsResult::OK);
 
-        // Previous master client fails to become a master.
-        result = pCamMaster->setMaster();
+        // Previous primary client fails to become a primary client.
+        result = pCamPrimary->setMaster();
         ASSERT_TRUE(result == EvsResult::OWNERSHIP_LOST);
 
         listening = false;
         listener = std::thread(
-            [&aNotification, &frameHandlerMaster, &listening, &eventCond]() {
+            [&aNotification, &frameHandlerPrimary, &listening, &eventCond]() {
                 // Notify that a listening thread is running.
                 listening = true;
                 eventCond.notify_all();
 
                 EvsEventDesc aTargetEvent;
                 aTargetEvent.aType = EvsEventType::MASTER_RELEASED;
-                if (!frameHandlerMaster->waitForEvent(aTargetEvent, aNotification, true)) {
+                if (!frameHandlerPrimary->waitForEvent(aTargetEvent, aNotification, true)) {
                     LOG(WARNING) << "A timer is expired before a target event is fired.";
                 }
 
@@ -1087,8 +1087,8 @@
         }
         lock.unlock();
 
-        // Closing current master client.
-        frameHandlerNonMaster->shutdown();
+        // Closing current primary client.
+        frameHandlerSecondary->shutdown();
 
         // Join a listening thread.
         if (listener.joinable()) {
@@ -1100,11 +1100,11 @@
                   static_cast<EvsEventType>(aNotification.aType));
 
         // Closing streams.
-        frameHandlerMaster->shutdown();
+        frameHandlerPrimary->shutdown();
 
         // Explicitly release the camera
-        pEnumerator->closeCamera(pCamMaster);
-        pEnumerator->closeCamera(pCamNonMaster);
+        pEnumerator->closeCamera(pCamPrimary);
+        pEnumerator->closeCamera(pCamSecondary);
         activeCameras.clear();
     }
 }
@@ -1112,7 +1112,7 @@
 
 /*
  * MultiCameraParameter:
- * Verify that master and non-master clients behave as expected when they try to adjust
+ * Verify that primary and non-primary clients behave as expected when they try to adjust
  * camera parameters.
  */
 TEST_P(EvsHidlTest, MultiCameraParameter) {
@@ -1142,88 +1142,88 @@
         }
 
         // Create two camera clients.
-        sp<IEvsCamera_1_1> pCamMaster =
+        sp<IEvsCamera_1_1> pCamPrimary =
             IEvsCamera_1_1::castFrom(pEnumerator->openCamera_1_1(cam.v1.cameraId, nullCfg))
             .withDefault(nullptr);
-        ASSERT_NE(pCamMaster, nullptr);
+        ASSERT_NE(pCamPrimary, nullptr);
 
         // Store a camera handle for a clean-up
-        activeCameras.push_back(pCamMaster);
+        activeCameras.push_back(pCamPrimary);
 
-        sp<IEvsCamera_1_1> pCamNonMaster =
+        sp<IEvsCamera_1_1> pCamSecondary =
             IEvsCamera_1_1::castFrom(pEnumerator->openCamera_1_1(cam.v1.cameraId, nullCfg))
             .withDefault(nullptr);
-        ASSERT_NE(pCamNonMaster, nullptr);
+        ASSERT_NE(pCamSecondary, nullptr);
 
         // Store a camera handle for a clean-up
-        activeCameras.push_back(pCamNonMaster);
+        activeCameras.push_back(pCamSecondary);
 
         // Get the parameter list
-        std::vector<CameraParam> camMasterCmds, camNonMasterCmds;
-        pCamMaster->getParameterList([&camMasterCmds](hidl_vec<CameraParam> cmdList) {
-                camMasterCmds.reserve(cmdList.size());
+        std::vector<CameraParam> camPrimaryCmds, camSecondaryCmds;
+        pCamPrimary->getParameterList([&camPrimaryCmds](hidl_vec<CameraParam> cmdList) {
+                camPrimaryCmds.reserve(cmdList.size());
                 for (auto &&cmd : cmdList) {
-                    camMasterCmds.push_back(cmd);
+                    camPrimaryCmds.push_back(cmd);
                 }
             }
         );
 
-        pCamNonMaster->getParameterList([&camNonMasterCmds](hidl_vec<CameraParam> cmdList) {
-                camNonMasterCmds.reserve(cmdList.size());
+        pCamSecondary->getParameterList([&camSecondaryCmds](hidl_vec<CameraParam> cmdList) {
+                camSecondaryCmds.reserve(cmdList.size());
                 for (auto &&cmd : cmdList) {
-                    camNonMasterCmds.push_back(cmd);
+                    camSecondaryCmds.push_back(cmd);
                 }
             }
         );
 
-        if (camMasterCmds.size() < 1 ||
-            camNonMasterCmds.size() < 1) {
+        if (camPrimaryCmds.size() < 1 ||
+            camSecondaryCmds.size() < 1) {
             // Skip a camera device if it does not support any parameter.
             continue;
         }
 
         // Set up per-client frame receiver objects which will fire up its own thread
-        sp<FrameHandler> frameHandlerMaster =
-            new FrameHandler(pCamMaster, cam,
+        sp<FrameHandler> frameHandlerPrimary =
+            new FrameHandler(pCamPrimary, cam,
                              nullptr,
                              FrameHandler::eAutoReturn);
-        ASSERT_NE(frameHandlerMaster, nullptr);
-        sp<FrameHandler> frameHandlerNonMaster =
-            new FrameHandler(pCamNonMaster, cam,
+        ASSERT_NE(frameHandlerPrimary, nullptr);
+        sp<FrameHandler> frameHandlerSecondary =
+            new FrameHandler(pCamSecondary, cam,
                              nullptr,
                              FrameHandler::eAutoReturn);
-        ASSERT_NE(frameHandlerNonMaster, nullptr);
+        ASSERT_NE(frameHandlerSecondary, nullptr);
 
-        // Set one client as the master
-        EvsResult result = pCamMaster->setMaster();
+        // Set one client as the primary client.
+        EvsResult result = pCamPrimary->setMaster();
         ASSERT_EQ(EvsResult::OK, result);
 
-        // Try to set another client as the master.
-        result = pCamNonMaster->setMaster();
+        // Try to set another client as the primary client.
+        result = pCamSecondary->setMaster();
         ASSERT_EQ(EvsResult::OWNERSHIP_LOST, result);
 
-        // Start the camera's video stream via a master client.
-        bool startResult = frameHandlerMaster->startStream();
+        // Start the camera's video stream via a primary client client.
+        bool startResult = frameHandlerPrimary->startStream();
         ASSERT_TRUE(startResult);
 
         // Ensure the stream starts
-        frameHandlerMaster->waitForFrameCount(1);
+        frameHandlerPrimary->waitForFrameCount(1);
 
         // Start the camera's video stream via another client
-        startResult = frameHandlerNonMaster->startStream();
+        startResult = frameHandlerSecondary->startStream();
         ASSERT_TRUE(startResult);
 
         // Ensure the stream starts
-        frameHandlerNonMaster->waitForFrameCount(1);
+        frameHandlerSecondary->waitForFrameCount(1);
 
         int32_t val0 = 0;
         std::vector<int32_t> values;
         EvsEventDesc aNotification0 = {};
         EvsEventDesc aNotification1 = {};
-        for (auto &cmd : camMasterCmds) {
+        for (auto &cmd : camPrimaryCmds) {
             // Get a valid parameter value range
             int32_t minVal, maxVal, step;
-            pCamMaster->getIntParameterRange(
+            pCamPrimary->getIntParameterRange(
                 cmd,
                 [&minVal, &maxVal, &step](int32_t val0, int32_t val1, int32_t val2) {
                     minVal = val0;
@@ -1236,7 +1236,7 @@
             if (cmd == CameraParam::ABSOLUTE_FOCUS) {
                 // Try to turn off auto-focus
                 values.clear();
-                pCamMaster->setIntParameter(CameraParam::AUTO_FOCUS, 0,
+                pCamPrimary->setIntParameter(CameraParam::AUTO_FOCUS, 0,
                                    [&result, &values](auto status, auto effectiveValues) {
                                        result = status;
                                        if (status == EvsResult::OK) {
@@ -1261,7 +1261,7 @@
             std::condition_variable eventCond;
             std::thread listener0 = std::thread(
                 [cmd, val0,
-                 &aNotification0, &frameHandlerMaster, &listening0, &listening1, &eventCond]() {
+                 &aNotification0, &frameHandlerPrimary, &listening0, &listening1, &eventCond]() {
                     listening0 = true;
                     if (listening1) {
                         eventCond.notify_all();
@@ -1271,14 +1271,14 @@
                     aTargetEvent.aType = EvsEventType::PARAMETER_CHANGED;
                     aTargetEvent.payload[0] = static_cast<uint32_t>(cmd);
                     aTargetEvent.payload[1] = val0;
-                    if (!frameHandlerMaster->waitForEvent(aTargetEvent, aNotification0)) {
+                    if (!frameHandlerPrimary->waitForEvent(aTargetEvent, aNotification0)) {
                         LOG(WARNING) << "A timer is expired before a target event is fired.";
                     }
                 }
             );
             std::thread listener1 = std::thread(
                 [cmd, val0,
-                 &aNotification1, &frameHandlerNonMaster, &listening0, &listening1, &eventCond]() {
+                 &aNotification1, &frameHandlerSecondary, &listening0, &listening1, &eventCond]() {
                     listening1 = true;
                     if (listening0) {
                         eventCond.notify_all();
@@ -1288,7 +1288,7 @@
                     aTargetEvent.aType = EvsEventType::PARAMETER_CHANGED;
                     aTargetEvent.payload[0] = static_cast<uint32_t>(cmd);
                     aTargetEvent.payload[1] = val0;
-                    if (!frameHandlerNonMaster->waitForEvent(aTargetEvent, aNotification1)) {
+                    if (!frameHandlerSecondary->waitForEvent(aTargetEvent, aNotification1)) {
                         LOG(WARNING) << "A timer is expired before a target event is fired.";
                     }
                 }
@@ -1305,7 +1305,7 @@
 
             // Try to program a parameter
             values.clear();
-            pCamMaster->setIntParameter(cmd, val0,
+            pCamPrimary->setIntParameter(cmd, val0,
                                      [&result, &values](auto status, auto effectiveValues) {
                                          result = status;
                                          if (status == EvsResult::OK) {
@@ -1345,9 +1345,9 @@
             }
 
             // Clients expects to receive a parameter change notification
-            // whenever a master client adjusts it.
+            // whenever a primary client client adjusts it.
             values.clear();
-            pCamMaster->getIntParameter(cmd,
+            pCamPrimary->getIntParameter(cmd,
                                      [&result, &values](auto status, auto readValues) {
                                          result = status;
                                          if (status == EvsResult::OK) {
@@ -1362,9 +1362,9 @@
             }
         }
 
-        // Try to adjust a parameter via non-master client
+        // Try to adjust a parameter via non-primary client
         values.clear();
-        pCamNonMaster->setIntParameter(camNonMasterCmds[0], val0,
+        pCamSecondary->setIntParameter(camSecondaryCmds[0], val0,
                                     [&result, &values](auto status, auto effectiveValues) {
                                         result = status;
                                         if (status == EvsResult::OK) {
@@ -1375,21 +1375,21 @@
                                     });
         ASSERT_EQ(EvsResult::INVALID_ARG, result);
 
-        // Non-master client attemps to be a master
-        result = pCamNonMaster->setMaster();
+        // Non-primary client attempts to be a primary client
+        result = pCamSecondary->setMaster();
         ASSERT_EQ(EvsResult::OWNERSHIP_LOST, result);
 
-        // Master client retires from a master role
+        // Primary client retires from a primary client role
         bool listening = false;
         std::condition_variable eventCond;
         std::thread listener = std::thread(
-            [&aNotification0, &frameHandlerNonMaster, &listening, &eventCond]() {
+            [&aNotification0, &frameHandlerSecondary, &listening, &eventCond]() {
                 listening = true;
                 eventCond.notify_all();
 
                 EvsEventDesc aTargetEvent;
                 aTargetEvent.aType = EvsEventType::MASTER_RELEASED;
-                if (!frameHandlerNonMaster->waitForEvent(aTargetEvent, aNotification0, true)) {
+                if (!frameHandlerSecondary->waitForEvent(aTargetEvent, aNotification0, true)) {
                     LOG(WARNING) << "A timer is expired before a target event is fired.";
                 }
             }
@@ -1403,7 +1403,7 @@
         }
         lock.unlock();
 
-        result = pCamMaster->unsetMaster();
+        result = pCamPrimary->unsetMaster();
         ASSERT_EQ(EvsResult::OK, result);
 
         if (listener.joinable()) {
@@ -1414,7 +1414,7 @@
 
         // Try to adjust a parameter after being retired
         values.clear();
-        pCamMaster->setIntParameter(camMasterCmds[0], val0,
+        pCamPrimary->setIntParameter(camPrimaryCmds[0], val0,
                                  [&result, &values](auto status, auto effectiveValues) {
                                      result = status;
                                      if (status == EvsResult::OK) {
@@ -1425,15 +1425,15 @@
                                  });
         ASSERT_EQ(EvsResult::INVALID_ARG, result);
 
-        // Non-master client becomes a master
-        result = pCamNonMaster->setMaster();
+        // Non-primary client becomes a primary client
+        result = pCamSecondary->setMaster();
         ASSERT_EQ(EvsResult::OK, result);
 
-        // Try to adjust a parameter via new master client
-        for (auto &cmd : camNonMasterCmds) {
+        // Try to adjust a parameter via new primary client
+        for (auto &cmd : camSecondaryCmds) {
             // Get a valid parameter value range
             int32_t minVal, maxVal, step;
-            pCamNonMaster->getIntParameterRange(
+            pCamSecondary->getIntParameterRange(
                 cmd,
                 [&minVal, &maxVal, &step](int32_t val0, int32_t val1, int32_t val2) {
                     minVal = val0;
@@ -1447,7 +1447,7 @@
             if (cmd == CameraParam::ABSOLUTE_FOCUS) {
                 // Try to turn off auto-focus
                 values.clear();
-                pCamNonMaster->setIntParameter(CameraParam::AUTO_FOCUS, 0,
+                pCamSecondary->setIntParameter(CameraParam::AUTO_FOCUS, 0,
                                    [&result, &values](auto status, auto effectiveValues) {
                                        result = status;
                                        if (status == EvsResult::OK) {
@@ -1471,7 +1471,7 @@
             bool listening1 = false;
             std::condition_variable eventCond;
             std::thread listener0 = std::thread(
-                [&cmd, &val0, &aNotification0, &frameHandlerMaster, &listening0, &listening1, &eventCond]() {
+                [&]() {
                     listening0 = true;
                     if (listening1) {
                         eventCond.notify_all();
@@ -1481,13 +1481,13 @@
                     aTargetEvent.aType = EvsEventType::PARAMETER_CHANGED;
                     aTargetEvent.payload[0] = static_cast<uint32_t>(cmd);
                     aTargetEvent.payload[1] = val0;
-                    if (!frameHandlerMaster->waitForEvent(aTargetEvent, aNotification0)) {
+                    if (!frameHandlerPrimary->waitForEvent(aTargetEvent, aNotification0)) {
                         LOG(WARNING) << "A timer is expired before a target event is fired.";
                     }
                 }
             );
             std::thread listener1 = std::thread(
-                [&cmd, &val0, &aNotification1, &frameHandlerNonMaster, &listening0, &listening1, &eventCond]() {
+                [&]() {
                     listening1 = true;
                     if (listening0) {
                         eventCond.notify_all();
@@ -1497,7 +1497,7 @@
                     aTargetEvent.aType = EvsEventType::PARAMETER_CHANGED;
                     aTargetEvent.payload[0] = static_cast<uint32_t>(cmd);
                     aTargetEvent.payload[1] = val0;
-                    if (!frameHandlerNonMaster->waitForEvent(aTargetEvent, aNotification1)) {
+                    if (!frameHandlerSecondary->waitForEvent(aTargetEvent, aNotification1)) {
                         LOG(WARNING) << "A timer is expired before a target event is fired.";
                     }
                 }
@@ -1514,7 +1514,7 @@
 
             // Try to program a parameter
             values.clear();
-            pCamNonMaster->setIntParameter(cmd, val0,
+            pCamSecondary->setIntParameter(cmd, val0,
                                         [&result, &values](auto status, auto effectiveValues) {
                                             result = status;
                                             if (status == EvsResult::OK) {
@@ -1526,9 +1526,9 @@
             ASSERT_EQ(EvsResult::OK, result);
 
             // Clients expects to receive a parameter change notification
-            // whenever a master client adjusts it.
+            // whenever a primary client client adjusts it.
             values.clear();
-            pCamNonMaster->getIntParameter(cmd,
+            pCamSecondary->getIntParameter(cmd,
                                         [&result, &values](auto status, auto readValues) {
                                             result = status;
                                             if (status == EvsResult::OK) {
@@ -1567,17 +1567,17 @@
             }
         }
 
-        // New master retires from a master role
-        result = pCamNonMaster->unsetMaster();
+        // New primary client retires from the role
+        result = pCamSecondary->unsetMaster();
         ASSERT_EQ(EvsResult::OK, result);
 
         // Shutdown
-        frameHandlerMaster->shutdown();
-        frameHandlerNonMaster->shutdown();
+        frameHandlerPrimary->shutdown();
+        frameHandlerSecondary->shutdown();
 
         // Explicitly release the camera
-        pEnumerator->closeCamera(pCamMaster);
-        pEnumerator->closeCamera(pCamNonMaster);
+        pEnumerator->closeCamera(pCamPrimary);
+        pEnumerator->closeCamera(pCamSecondary);
         activeCameras.clear();
     }
 }
@@ -1586,7 +1586,7 @@
 /*
  * HighPriorityCameraClient:
  * EVS client, which owns the display, is priortized and therefore can take over
- * a master role from other EVS clients without the display.
+ * a primary client role from other EVS clients without the display.
  */
 TEST_P(EvsHidlTest, HighPriorityCameraClient) {
     LOG(INFO) << "Starting HighPriorityCameraClient test";
@@ -1668,7 +1668,7 @@
         frameHandler0->waitForFrameCount(1);
         frameHandler1->waitForFrameCount(1);
 
-        // Client 1 becomes a master and programs a parameter.
+        // Client 1 becomes a primary client and programs a parameter.
         EvsResult result = EvsResult::OK;
         // Get a valid parameter value range
         int32_t minVal, maxVal, step;
@@ -1681,7 +1681,7 @@
             }
         );
 
-        // Client1 becomes a master
+        // Client1 becomes a primary client
         result = pCam1->setMaster();
         ASSERT_EQ(EvsResult::OK, result);
 
@@ -1820,7 +1820,7 @@
         }
         lock.unlock();
 
-        // Client 0 steals a master role
+        // Client 0 steals a primary client role
         ASSERT_EQ(EvsResult::OK, pCam0->forceMaster(pDisplay));
 
         // Join a listener
@@ -2241,7 +2241,7 @@
 TEST_P(EvsHidlTest, CameraStreamExternalBuffering) {
     LOG(INFO) << "Starting CameraStreamExternalBuffering test";
 
-    // Arbitrary constant (should be > 1 and less than crazy)
+    // Arbitrary constant (should be > 1 and not too big)
     static const unsigned int kBuffersToHold = 6;
 
     // Get the camera list
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 16c33b9..16e1bf7 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
@@ -266,6 +266,20 @@
          .initialValue = {.stringValue = "Toy Vehicle"}},
         {.config =
                  {
+                         .prop = toInt(VehicleProperty::INFO_MODEL),
+                         .access = VehiclePropertyAccess::READ,
+                         .changeMode = VehiclePropertyChangeMode::STATIC,
+                 },
+         .initialValue = {.stringValue = "Speedy Model"}},
+        {.config =
+                 {
+                         .prop = toInt(VehicleProperty::INFO_MODEL_YEAR),
+                         .access = VehiclePropertyAccess::READ,
+                         .changeMode = VehiclePropertyChangeMode::STATIC,
+                 },
+         .initialValue = {.int32Values = {2020}}},
+        {.config =
+                 {
                          .prop = toInt(VehicleProperty::INFO_EXTERIOR_DIMENSIONS),
                          .access = VehiclePropertyAccess::READ,
                          .changeMode = VehiclePropertyChangeMode::STATIC,
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 9463924..44fbc64 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -537,7 +537,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.wifi.hostapd</name>
-        <version>1.0-2</version>
+        <version>1.0-3</version>
         <interface>
             <name>IHostapd</name>
             <instance>default</instance>
@@ -545,7 +545,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.wifi.supplicant</name>
-        <version>1.0-3</version>
+        <version>1.0-4</version>
         <interface>
             <name>ISupplicant</name>
             <instance>default</instance>
diff --git a/sensors/common/default/2.X/multihal/HalProxy.cpp b/sensors/common/default/2.X/multihal/HalProxy.cpp
index 75ffc17..fe3fc84 100644
--- a/sensors/common/default/2.X/multihal/HalProxy.cpp
+++ b/sensors/common/default/2.X/multihal/HalProxy.cpp
@@ -693,6 +693,10 @@
                                                         int64_t timeoutStart /* = -1 */) {
     if (!mThreadsRun.load()) return;
     std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
+    if (delta > mWakelockRefCount) {
+        ALOGE("Decrementing wakelock ref count by %zu when count is %zu",
+              delta, mWakelockRefCount);
+    }
     if (timeoutStart == -1) timeoutStart = mWakelockTimeoutResetTime;
     if (mWakelockRefCount == 0 || timeoutStart < mWakelockTimeoutResetTime) return;
     mWakelockRefCount -= std::min(mWakelockRefCount, delta);
diff --git a/sensors/common/default/2.X/multihal/ScopedWakelock.cpp b/sensors/common/default/2.X/multihal/ScopedWakelock.cpp
index bf2ad35..2a2baa2 100644
--- a/sensors/common/default/2.X/multihal/ScopedWakelock.cpp
+++ b/sensors/common/default/2.X/multihal/ScopedWakelock.cpp
@@ -28,6 +28,21 @@
             .count();
 }
 
+ScopedWakelock::ScopedWakelock(ScopedWakelock&& other) {
+    *this = std::move(other);
+}
+
+ScopedWakelock& ScopedWakelock::operator=(ScopedWakelock&& other) {
+    mRefCounter = other.mRefCounter;
+    mCreatedAtTimeNs = other.mCreatedAtTimeNs;
+    mLocked = other.mLocked;
+
+    other.mRefCounter = nullptr;
+    other.mCreatedAtTimeNs = 0;
+    other.mLocked = false;
+    return *this;
+}
+
 ScopedWakelock::ScopedWakelock(IScopedWakelockRefCounter* refCounter, bool locked)
     : mRefCounter(refCounter), mLocked(locked) {
     if (mLocked) {
diff --git a/sensors/common/default/2.X/multihal/include/V2_0/ScopedWakelock.h b/sensors/common/default/2.X/multihal/include/V2_0/ScopedWakelock.h
index 1cc5cd5..b3f398c 100644
--- a/sensors/common/default/2.X/multihal/include/V2_0/ScopedWakelock.h
+++ b/sensors/common/default/2.X/multihal/include/V2_0/ScopedWakelock.h
@@ -81,14 +81,15 @@
  */
 class ScopedWakelock {
   public:
-    ScopedWakelock(ScopedWakelock&&) = default;
-    ScopedWakelock& operator=(ScopedWakelock&&) = default;
+    ScopedWakelock(ScopedWakelock&& other);
+    ScopedWakelock& operator=(ScopedWakelock&& other);
     virtual ~ScopedWakelock();
 
     bool isLocked() const { return mLocked; }
 
   private:
     friend class HalProxyCallbackBase;
+    friend class ScopedWakelockTest;
     IScopedWakelockRefCounter* mRefCounter;
     int64_t mCreatedAtTimeNs;
     bool mLocked;
diff --git a/sensors/common/default/2.X/multihal/tests/Android.bp b/sensors/common/default/2.X/multihal/tests/Android.bp
index a15faed..1b60f4b 100644
--- a/sensors/common/default/2.X/multihal/tests/Android.bp
+++ b/sensors/common/default/2.X/multihal/tests/Android.bp
@@ -90,7 +90,10 @@
 
 cc_test {
     name: "android.hardware.sensors@2.X-halproxy-unit-tests",
-    srcs: ["HalProxy_test.cpp"],
+    srcs: [
+        "HalProxy_test.cpp",
+        "ScopedWakelock_test.cpp",
+    ],
     vendor: true,
     header_libs: [
         "android.hardware.sensors@2.X-shared-utils",
diff --git a/sensors/common/default/2.X/multihal/tests/ScopedWakelock_test.cpp b/sensors/common/default/2.X/multihal/tests/ScopedWakelock_test.cpp
new file mode 100644
index 0000000..133d9e8
--- /dev/null
+++ b/sensors/common/default/2.X/multihal/tests/ScopedWakelock_test.cpp
@@ -0,0 +1,110 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <gtest/gtest.h>
+
+#include "V2_0/ScopedWakelock.h"
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace implementation {
+
+class RefCounter : public IScopedWakelockRefCounter {
+  public:
+    size_t incCount = 0;
+    size_t decCount = 0;
+
+    bool incrementRefCountAndMaybeAcquireWakelock(size_t /* delta */,
+                                                  int64_t* /* timeoutStart */) override {
+        incCount++;
+        return true;
+    }
+
+    void decrementRefCountAndMaybeReleaseWakelock(size_t /* delta */,
+                                                  int64_t /* timeoutStart */) override {
+        decCount++;
+    }
+};
+
+class ScopedWakelockTest : public testing::Test {
+  public:
+    ScopedWakelock createScopedWakelock(bool locked) {
+        return ScopedWakelock(&mRefCounter, locked);
+    }
+
+    RefCounter mRefCounter;
+};
+
+TEST_F(ScopedWakelockTest, UnlockedAfterMoved) {
+    ScopedWakelock wakelock = createScopedWakelock(false /* locked */);
+
+    ScopedWakelock movedWakelock(std::move(wakelock));
+
+    EXPECT_FALSE(wakelock.isLocked());
+    EXPECT_FALSE(movedWakelock.isLocked());
+}
+
+TEST_F(ScopedWakelockTest, LockedAfterMoved) {
+    ScopedWakelock wakelock = createScopedWakelock(true /* locked */);
+
+    ScopedWakelock movedWakelock(std::move(wakelock));
+
+    EXPECT_FALSE(wakelock.isLocked());
+    EXPECT_TRUE(movedWakelock.isLocked());
+}
+
+TEST_F(ScopedWakelockTest, Locked) {
+    ScopedWakelock wakelock = createScopedWakelock(true /* locked */);
+
+    EXPECT_TRUE(wakelock.isLocked());
+}
+
+TEST_F(ScopedWakelockTest, Unlocked) {
+    ScopedWakelock wakelock = createScopedWakelock(false /* locked */);
+
+    EXPECT_FALSE(wakelock.isLocked());
+}
+
+TEST_F(ScopedWakelockTest, ScopedLocked) {
+    { createScopedWakelock(true /* locked */); }
+
+    EXPECT_EQ(mRefCounter.incCount, 1);
+    EXPECT_EQ(mRefCounter.decCount, 1);
+}
+
+TEST_F(ScopedWakelockTest, ScopedUnlockIsNoop) {
+    { createScopedWakelock(false /* locked */); }
+
+    EXPECT_EQ(mRefCounter.incCount, 0);
+    EXPECT_EQ(mRefCounter.decCount, 0);
+}
+
+TEST_F(ScopedWakelockTest, ScopedLockedMove) {
+    {
+        ScopedWakelock wakelock = createScopedWakelock(true /* locked */);
+        ScopedWakelock movedWakelock(std::move(wakelock));
+    }
+
+    EXPECT_EQ(mRefCounter.incCount, 1);
+    EXPECT_EQ(mRefCounter.decCount, 1);
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
\ No newline at end of file
diff --git a/tv/tuner/1.1/Android.bp b/tv/tuner/1.1/Android.bp
index 032232d..92769f0 100644
--- a/tv/tuner/1.1/Android.bp
+++ b/tv/tuner/1.1/Android.bp
@@ -6,6 +6,7 @@
     srcs: [
         "IDemux.hal",
         "IFilter.hal",
+        "IFrontend.hal",
         "IFilterCallback.hal",
         "ITuner.hal",
         "types.hal",
diff --git a/tv/tuner/1.1/IFilterCallback.hal b/tv/tuner/1.1/IFilterCallback.hal
index a80273b..3e5f047 100644
--- a/tv/tuner/1.1/IFilterCallback.hal
+++ b/tv/tuner/1.1/IFilterCallback.hal
@@ -17,13 +17,15 @@
 package android.hardware.tv.tuner@1.1;
 
 import @1.0::IFilterCallback;
-import @1.1::DemuxFilterEvent;
+import @1.0::DemuxFilterEvent;
+import @1.1::DemuxFilterEventExt;
 
 interface IFilterCallback extends @1.0::IFilterCallback {
     /**
      * Notify the client that a new filter event happened.
      *
-     * @param filterEvent a v1_1 filter event.
+     * @param filterEvent a v1_0 filter event.
+     * @param filterEventExt a v1_1 extended filter event.
      */
-    oneway onFilterEvent_1_1(DemuxFilterEvent filterEvent);
+    oneway onFilterEvent_1_1(DemuxFilterEvent filterEvent, DemuxFilterEventExt filterEventExt);
 };
diff --git a/tv/tuner/1.1/IFrontend.hal b/tv/tuner/1.1/IFrontend.hal
new file mode 100644
index 0000000..b570549
--- /dev/null
+++ b/tv/tuner/1.1/IFrontend.hal
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.tv.tuner@1.1;
+
+import @1.0::FrontendScanType;
+import @1.0::FrontendSettings;
+import @1.0::IFrontend;
+import @1.0::Result;
+
+/**
+ * A Tuner Frontend is used to tune to a frequency and lock signal.
+ *
+ * IFrontend provides a bit stream to the Tuner Demux interface.
+ */
+interface IFrontend extends @1.0::IFrontend {
+    /**
+     * Tunes the frontend to using the settings given.
+     *
+     * This locks the frontend to a frequency by providing signal
+     * delivery information. If previous tuning isn't completed, this call MUST
+     * stop previous tuning, and start a new tuning.
+     * Tune is an async call, with LOCKED or NO_SIGNAL events sent via callback.
+     *
+     * @param settings Signal delivery information the frontend uses to
+     * search and lock the signal.
+     * @param settingsExt Extended information that would be used in the 1.1 Frontend to
+     * search and lock the signal in a better way.
+     *
+     * @return result Result status of the operation.
+     *         SUCCESS if successful,
+     *         INVALID_STATE if tuning can't be applied at current stage,
+     *         UNKNOWN_ERROR if tuning failed for other reasons.
+     */
+    tune_1_1(FrontendSettings settings, FrontendSettingsExt settingsExt) generates (Result result);
+
+    /**
+     * Scan the frontend to use the settings given.
+     *
+     * This uses the frontend to start a scan from signal delivery information.
+     * If previous scan isn't completed, this call MUST stop previous scan,
+     * and start a new scan.
+     * Scan is an async call, with FrontendScanMessage sent via callback.
+     *
+     * @param settings Signal delivery information which the frontend uses to
+     * scan the signal.
+     * @param type the type which the frontend uses to scan the signal.
+     * @param settingsExt Extended information that would be used in the 1.1 Frontend to
+     * search and lock the signal in a better way.
+     * @return result Result status of the operation.
+     *         SUCCESS if successful,
+     *         INVALID_STATE if tuning can't be applied at current stage,
+     *         UNKNOWN_ERROR if tuning failed for other reasons.
+     */
+    scan_1_1(FrontendSettings settings, FrontendScanType type, FrontendSettingsExt settingsExt)
+            generates (Result result);
+};
diff --git a/tv/tuner/1.1/default/Filter.cpp b/tv/tuner/1.1/default/Filter.cpp
index 4d08afe..fae83a2 100644
--- a/tv/tuner/1.1/default/Filter.cpp
+++ b/tv/tuner/1.1/default/Filter.cpp
@@ -220,7 +220,7 @@
     // For the first time of filter output, implementation needs to send the filter
     // Event Callback without waiting for the DATA_CONSUMED to init the process.
     while (mFilterThreadRunning) {
-        if (mFilterEvent.events.size() == 0 && mFilterEvent_1_1.events.size() == 0) {
+        if (mFilterEvent.events.size() == 0 && mFilterEventExt.events.size() == 0) {
             if (DEBUG_FILTER) {
                 ALOGD("[Filter] wait for filter data output.");
             }
@@ -228,18 +228,17 @@
             continue;
         }
         // After successfully write, send a callback and wait for the read to be done
-        if (mFilterEvent_1_1.events.size() > 0) {
-            if (mCallback_1_1 == nullptr) {
-                ALOGE("[Filter] IFilterCallback_1_1 has not been configured yet. Can't send event");
-                mFilterThreadRunning = false;
-                break;
-            }
-            mCallback_1_1->onFilterEvent_1_1(mFilterEvent_1_1);
-            mFilterEvent_1_1.events.resize(0);
-        } else {
+        if (mCallback_1_1 != nullptr) {
+            mCallback_1_1->onFilterEvent_1_1(mFilterEvent, mFilterEventExt);
+            mFilterEventExt.events.resize(0);
+        } else if (mCallback != nullptr) {
             mCallback->onFilterEvent(mFilterEvent);
-            mFilterEvent.events.resize(0);
+        } else {
+            ALOGD("[Filter] filter callback is not configured yet.");
+            mFilterThreadRunning = false;
+            return;
         }
+        mFilterEvent.events.resize(0);
 
         freeAvHandle();
         mFilterStatus = DemuxFilterStatus::DATA_READY;
@@ -279,8 +278,8 @@
                     mCallback->onFilterEvent(mFilterEvent);
                     mFilterEvent.events.resize(0);
                 } else if (mCallback_1_1 != nullptr) {
-                    mCallback_1_1->onFilterEvent_1_1(mFilterEvent_1_1);
-                    mFilterEvent_1_1.events.resize(0);
+                    mCallback_1_1->onFilterEvent_1_1(mFilterEvent, mFilterEventExt);
+                    mFilterEventExt.events.resize(0);
                 }
                 break;
             }
@@ -612,22 +611,18 @@
     recordEvent = {
             .byteNumber = mRecordFilterOutput.size(),
     };
-    V1_1::DemuxFilterTsRecordEvent recordEvent_1_1;
-    recordEvent_1_1 = {
-            .tsRecordEvent_1_0 = recordEvent,
+    V1_1::DemuxFilterRecordEventExt recordEventExt;
+    recordEventExt = {
             .pts = (mPts == 0) ? time(NULL) * 900000 : mPts,
     };
 
     int size;
-    if (mCallback_1_1 != nullptr) {
-        size = mFilterEvent_1_1.events.size();
-        mFilterEvent_1_1.events.resize(size + 1);
-        mFilterEvent_1_1.events[size].tsRecord(recordEvent_1_1);
-    } else if (mCallback != nullptr) {
-        size = mFilterEvent.events.size();
-        mFilterEvent.events.resize(size + 1);
-        mFilterEvent.events[size].tsRecord(recordEvent);
-    }
+    size = mFilterEventExt.events.size();
+    mFilterEventExt.events.resize(size + 1);
+    mFilterEventExt.events[size].tsRecord(recordEventExt);
+    size = mFilterEvent.events.size();
+    mFilterEvent.events.resize(size + 1);
+    mFilterEvent.events[size].tsRecord(recordEvent);
 
     mRecordFilterOutput.clear();
     return Result::SUCCESS;
diff --git a/tv/tuner/1.1/default/Filter.h b/tv/tuner/1.1/default/Filter.h
index 8e6fe38..fa52f96 100644
--- a/tv/tuner/1.1/default/Filter.h
+++ b/tv/tuner/1.1/default/Filter.h
@@ -128,7 +128,7 @@
     bool mIsUsingFMQ = false;
     EventFlag* mFilterEventFlag;
     DemuxFilterEvent mFilterEvent;
-    V1_1::DemuxFilterEvent mFilterEvent_1_1;
+    V1_1::DemuxFilterEventExt mFilterEventExt;
 
     // Thread handlers
     pthread_t mFilterThread;
diff --git a/tv/tuner/1.1/default/Frontend.cpp b/tv/tuner/1.1/default/Frontend.cpp
index 6f5885f..1e9435b 100644
--- a/tv/tuner/1.1/default/Frontend.cpp
+++ b/tv/tuner/1.1/default/Frontend.cpp
@@ -71,6 +71,12 @@
     return Result::SUCCESS;
 }
 
+Return<Result> Frontend::tune_1_1(const FrontendSettings& settings,
+                                  const V1_1::FrontendSettingsExt& /*settingsExt*/) {
+    ALOGV("%s", __FUNCTION__);
+    return tune(settings);
+}
+
 Return<Result> Frontend::stopTune() {
     ALOGV("%s", __FUNCTION__);
 
@@ -115,6 +121,12 @@
     return Result::SUCCESS;
 }
 
+Return<Result> Frontend::scan_1_1(const FrontendSettings& settings, FrontendScanType type,
+                                  const V1_1::FrontendSettingsExt& /*settingsExt*/) {
+    ALOGV("%s", __FUNCTION__);
+    return scan(settings, type);
+}
+
 Return<Result> Frontend::stopScan() {
     ALOGV("%s", __FUNCTION__);
 
diff --git a/tv/tuner/1.1/default/Frontend.h b/tv/tuner/1.1/default/Frontend.h
index 89b4a6b..d44f4ae 100644
--- a/tv/tuner/1.1/default/Frontend.h
+++ b/tv/tuner/1.1/default/Frontend.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_HARDWARE_TV_TUNER_V1_1_FRONTEND_H_
 #define ANDROID_HARDWARE_TV_TUNER_V1_1_FRONTEND_H_
 
+#include <android/hardware/tv/tuner/1.1/IFrontend.h>
 #include <fstream>
 #include <iostream>
 #include "Tuner.h"
@@ -32,7 +33,7 @@
 
 class Tuner;
 
-class Frontend : public IFrontend {
+class Frontend : public V1_1::IFrontend {
   public:
     Frontend(FrontendType type, FrontendId id, sp<Tuner> tuner);
 
@@ -42,10 +43,16 @@
 
     virtual Return<Result> tune(const FrontendSettings& settings) override;
 
+    virtual Return<Result> tune_1_1(const FrontendSettings& settings,
+                                    const V1_1::FrontendSettingsExt& settingsExt) override;
+
     virtual Return<Result> stopTune() override;
 
     virtual Return<Result> scan(const FrontendSettings& settings, FrontendScanType type) override;
 
+    virtual Return<Result> scan_1_1(const FrontendSettings& settings, FrontendScanType type,
+                                    const V1_1::FrontendSettingsExt& settingsExt) override;
+
     virtual Return<Result> stopScan() override;
 
     virtual Return<void> getStatus(const hidl_vec<FrontendStatusType>& statusTypes,
diff --git a/tv/tuner/1.1/types.hal b/tv/tuner/1.1/types.hal
index 5c02b85..9e2f453 100644
--- a/tv/tuner/1.1/types.hal
+++ b/tv/tuner/1.1/types.hal
@@ -17,15 +17,12 @@
 package android.hardware.tv.tuner@1.1;
 
 import @1.0::Constant;
-import @1.0::DemuxFilterDownloadEvent;
-import @1.0::DemuxFilterIpPayloadEvent;
-import @1.0::DemuxFilterMediaEvent;
 import @1.0::DemuxFilterMmtpRecordEvent;
-import @1.0::DemuxFilterPesEvent;
-import @1.0::DemuxFilterSectionEvent;
-import @1.0::DemuxFilterTemiEvent;
 import @1.0::DemuxFilterTsRecordEvent;
+import @1.0::FrontendDvbcSpectralInversion;
+import @1.0::FrontendDvbtTransmissionMode;
 import android.hidl.safe_union@1.0;
+import android.hidl.safe_union@1.0::Monostate;
 
 @export
 enum Constant : @1.0::Constant {
@@ -33,6 +30,10 @@
      * An invalid mpuSequenceNumber in DemuxFilterMmtpRecordEvent.
      */
     INVALID_MMTP_RECORD_EVENT_MPT_SEQUENCE_NUM = 0xFFFFFFFF,
+    /**
+     * An invalid frenquency that can be used as the default value of the frontend setting.
+     */
+    INVALID_FRONTEND_SETTING_FREQUENCY = 0xFFFFFFFF,
 };
 
 @export
@@ -52,64 +53,36 @@
 };
 
 /**
- * Filter Event for TS Record data.
+ * Extended Demux Filter Record Event.
  */
-struct DemuxFilterTsRecordEvent {
-    /**
-     * V1_0 Filter Event for TS Record data.
-     */
-    @1.0::DemuxFilterTsRecordEvent tsRecordEvent_1_0;
-
+struct DemuxFilterRecordEventExt {
     /**
      * The Presentation Time Stamp(PTS) for the audio or video frame. It is based on 90KHz
      * and has the same format as the PTS in ISO/IEC 13818-1. It is used only for the SC and
      * the SC_HEVC.
      */
     uint64_t pts;
-};
-
-/**
- * Filter Event for MMTP Record data.
- */
-struct DemuxFilterMmtpRecordEvent {
-    /**
-     * V1_0 Filter Event for MMTP Record data.
-     */
-    @1.0::DemuxFilterMmtpRecordEvent mmtpRecordEvent_1_0;
 
     /**
      * MPU sequence number of the filtered data. This is only used for MMTP.
      */
     uint32_t mpuSequenceNumber;
-
-    /**
-     * The Presentation Time Stamp(PTS) for the audio or video frame. It is based on 90KHz
-     * and has the same format as the PTS in ISO/IEC 13818-1. It is used only for the SC and
-     * the SC_HEVC.
-     */
-    uint64_t pts;
 };
 
 /**
- * Filter Event.
+ * Extended Demux Filter Event.
  */
-struct DemuxFilterEvent {
+struct DemuxFilterEventExt {
     safe_union Event {
-        DemuxFilterSectionEvent section;
+        /**
+         * No extended record filter Event. This is used by the tsRecord or mmtpRecord filter event
+         * that does not contain the DemuxFilterRecordEventExt information.
+         */
+        Monostate noinit;
 
-        DemuxFilterMediaEvent media;
+        DemuxFilterRecordEventExt tsRecord;
 
-        DemuxFilterPesEvent pes;
-
-        @1.1::DemuxFilterTsRecordEvent tsRecord;
-
-        @1.1::DemuxFilterMmtpRecordEvent mmtpRecord;
-
-        DemuxFilterDownloadEvent download;
-
-        DemuxFilterIpPayloadEvent ipPayload;
-
-        DemuxFilterTemiEvent temi;
+        DemuxFilterRecordEventExt mmtpRecord;
     };
 
     /**
@@ -117,3 +90,91 @@
      */
     vec<Event> events;
 };
+
+typedef FrontendDvbcSpectralInversion FrontendSpectralInversion;
+
+/**
+ *  Scan type for a DVBS Frontend.
+ */
+@export
+enum FrontendDvbsScanType : uint32_t {
+    UNDEFINED = 0,
+    DIRECT,
+    DISEQC,
+    UNICABLE,
+    JESS,
+};
+
+/**
+ *  Rotation status for a DVBT Frontend.
+ */
+@export
+enum FrontendDvbtRotation : uint32_t {
+    UNDEFINED,
+    NOT_ROTATED,
+    ROTATED,
+};
+
+/**
+ * AFT flag for an Analog Frontend.
+ */
+@export
+enum FrontendAnalogAftFlag : uint32_t {
+    UNDEFINED,
+    AFT_TRUE,
+    AFT_FALSE,
+};
+
+/**
+ *  Extended Transmission Mode for DVBT.
+ */
+@export
+enum FrontendDvbtTransmissionMode : @1.0::FrontendDvbtTransmissionMode {
+    MODE_8K_E = 1 << 7,
+
+    MODE_16K_E = 1 << 8,
+
+    MODE_32K_E = 1 << 9,
+};
+
+/**
+ *  Extended Signal Settings for a DVBS Frontend.
+ */
+struct FrontendDvbsSettingsExt {
+    FrontendDvbsScanType scanType;
+};
+
+/**
+ *  Extended Signal Settings for a DVBT Frontend.
+ */
+struct FrontendDvbtSettingsExt {
+    FrontendDvbtRotation rotation;
+
+    FrontendDvbtTransmissionMode transmissionMode;
+};
+
+/**
+ *  Extended Signal Settings for an Analog Frontend.
+ */
+struct FrontendAnalogSettingsExt {
+    FrontendAnalogAftFlag aftFlag;
+};
+
+/**
+ *  Extended Signal Settings for Frontend.
+ */
+struct FrontendSettingsExt {
+    uint32_t endFrequency;
+
+    FrontendSpectralInversion inversion;
+
+    safe_union SettingsExt {
+        Monostate noinit;
+
+        FrontendAnalogSettingsExt analog;
+
+        FrontendDvbsSettingsExt dvbs;
+
+        FrontendDvbtSettingsExt dvbt;
+    } settingExt;
+};
diff --git a/tv/tuner/1.1/vts/functional/FilterTests.cpp b/tv/tuner/1.1/vts/functional/FilterTests.cpp
index 9cbec86..24e1fa0 100644
--- a/tv/tuner/1.1/vts/functional/FilterTests.cpp
+++ b/tv/tuner/1.1/vts/functional/FilterTests.cpp
@@ -20,11 +20,12 @@
     bool result = false;
     ALOGW("[vts] reading from filter FMQ or buffer %d", mFilterId);
     // todo separate filter handlers
-    for (int i = 0; i < mFilterEvent.events.size(); i++) {
-        switch (mFilterEventType) {
-            case FilterEventType::RECORD:
-                ALOGW("[vts] Record filter event, pts=%" PRIu64 ".",
-                      mFilterEvent.events[0].tsRecord().pts);
+    for (int i = 0; i < mFilterEventExt.events.size(); i++) {
+        auto eventExt = mFilterEventExt.events[i];
+        switch (eventExt.getDiscriminator()) {
+            case DemuxFilterEventExt::Event::hidl_discriminator::tsRecord:
+                ALOGW("[vts] Extended TS record filter event, pts=%" PRIu64 ".",
+                      eventExt.tsRecord().pts);
                 break;
             default:
                 break;
diff --git a/tv/tuner/1.1/vts/functional/FilterTests.h b/tv/tuner/1.1/vts/functional/FilterTests.h
index 8156f14..721e419 100644
--- a/tv/tuner/1.1/vts/functional/FilterTests.h
+++ b/tv/tuner/1.1/vts/functional/FilterTests.h
@@ -44,6 +44,7 @@
 using android::hardware::MQDescriptorSync;
 using android::hardware::Return;
 using android::hardware::Void;
+using android::hardware::tv::tuner::V1_0::DemuxFilterEvent;
 using android::hardware::tv::tuner::V1_0::DemuxFilterMainType;
 using android::hardware::tv::tuner::V1_0::DemuxFilterSettings;
 using android::hardware::tv::tuner::V1_0::DemuxFilterStatus;
@@ -52,7 +53,7 @@
 using android::hardware::tv::tuner::V1_0::IDemux;
 using android::hardware::tv::tuner::V1_0::IFilter;
 using android::hardware::tv::tuner::V1_0::Result;
-using android::hardware::tv::tuner::V1_1::DemuxFilterEvent;
+using android::hardware::tv::tuner::V1_1::DemuxFilterEventExt;
 using android::hardware::tv::tuner::V1_1::IFilterCallback;
 using android::hardware::tv::tuner::V1_1::ITuner;
 
@@ -78,11 +79,13 @@
 
 class FilterCallback : public IFilterCallback {
   public:
-    virtual Return<void> onFilterEvent_1_1(const DemuxFilterEvent& filterEvent) override {
+    virtual Return<void> onFilterEvent_1_1(const DemuxFilterEvent& filterEvent,
+                                           const DemuxFilterEventExt& filterEventExt) override {
         android::Mutex::Autolock autoLock(mMsgLock);
         // Temprarily we treat the first coming back filter data on the matching pid a success
         // once all of the MQ are cleared, means we got all the expected output
         mFilterEvent = filterEvent;
+        mFilterEventExt = filterEventExt;
         readFilterEventData();
         mPidFilterOutputCount++;
         mMsgCondition.signal();
@@ -109,6 +112,7 @@
     sp<IFilter> mFilter;
     FilterEventType mFilterEventType;
     DemuxFilterEvent mFilterEvent;
+    DemuxFilterEventExt mFilterEventExt;
 
     android::Mutex mMsgLock;
     android::Mutex mFilterOutputLock;
diff --git a/tv/tuner/1.1/vts/functional/FrontendTests.cpp b/tv/tuner/1.1/vts/functional/FrontendTests.cpp
index da46adb..5e2b288 100644
--- a/tv/tuner/1.1/vts/functional/FrontendTests.cpp
+++ b/tv/tuner/1.1/vts/functional/FrontendTests.cpp
@@ -32,13 +32,31 @@
     }
 }
 
-Return<void> FrontendCallback::onScanMessage(FrontendScanMessageType /*type*/,
-                                             const FrontendScanMessage& /*message*/) {
+Return<void> FrontendCallback::onScanMessage(FrontendScanMessageType type,
+                                             const FrontendScanMessage& message) {
+    android::Mutex::Autolock autoLock(mMsgLock);
+    while (!mScanMsgProcessed) {
+        mMsgCondition.wait(mMsgLock);
+    }
+    ALOGD("[vts] frontend scan message. Type: %d", type);
+    mScanMessageReceived = true;
+    mScanMsgProcessed = false;
+    mScanMessageType = type;
+    mScanMessage = message;
+    mMsgCondition.signal();
     return Void();
 }
 
-void FrontendCallback::tuneTestOnLock(sp<IFrontend>& frontend, FrontendSettings settings) {
-    Result result = frontend->tune(settings);
+void FrontendCallback::tuneTestOnLock(sp<IFrontend>& frontend, FrontendSettings settings,
+                                      FrontendSettingsExt settingsExt) {
+    sp<android::hardware::tv::tuner::V1_1::IFrontend> frontend_1_1;
+    frontend_1_1 = android::hardware::tv::tuner::V1_1::IFrontend::castFrom(frontend);
+    if (frontend_1_1 == nullptr) {
+        EXPECT_TRUE(false) << "Couldn't get 1.1 IFrontend from the Hal implementation.";
+        return;
+    }
+
+    Result result = frontend_1_1->tune_1_1(settings, settingsExt);
     EXPECT_TRUE(result == Result::SUCCESS);
 
     android::Mutex::Autolock autoLock(mMsgLock);
@@ -52,6 +70,130 @@
     mLockMsgReceived = false;
 }
 
+void FrontendCallback::scanTest(sp<IFrontend>& frontend, FrontendConfig config,
+                                FrontendScanType type) {
+    sp<android::hardware::tv::tuner::V1_1::IFrontend> frontend_1_1;
+    frontend_1_1 = android::hardware::tv::tuner::V1_1::IFrontend::castFrom(frontend);
+    if (frontend_1_1 == nullptr) {
+        EXPECT_TRUE(false) << "Couldn't get 1.1 IFrontend from the Hal implementation.";
+        return;
+    }
+
+    uint32_t targetFrequency = getTargetFrequency(config.settings, config.type);
+    if (type == FrontendScanType::SCAN_BLIND) {
+        // reset the frequency in the scan configuration to test blind scan. The settings param of
+        // passed in means the real input config on the transponder connected to the DUT.
+        // We want the blind the test to start from lower frequency than this to check the blind
+        // scan implementation.
+        resetBlindScanStartingFrequency(config, targetFrequency - 100);
+    }
+
+    Result result = frontend_1_1->scan_1_1(config.settings, type, config.settingsExt);
+    EXPECT_TRUE(result == Result::SUCCESS);
+
+    bool scanMsgLockedReceived = false;
+    bool targetFrequencyReceived = false;
+
+    android::Mutex::Autolock autoLock(mMsgLock);
+wait:
+    while (!mScanMessageReceived) {
+        if (-ETIMEDOUT == mMsgCondition.waitRelative(mMsgLock, WAIT_TIMEOUT)) {
+            EXPECT_TRUE(false) << "Scan message not received within timeout";
+            mScanMessageReceived = false;
+            mScanMsgProcessed = true;
+            return;
+        }
+    }
+
+    if (mScanMessageType != FrontendScanMessageType::END) {
+        if (mScanMessageType == FrontendScanMessageType::LOCKED) {
+            scanMsgLockedReceived = true;
+            Result result = frontend_1_1->scan_1_1(config.settings, type, config.settingsExt);
+            EXPECT_TRUE(result == Result::SUCCESS);
+        }
+
+        if (mScanMessageType == FrontendScanMessageType::FREQUENCY) {
+            targetFrequencyReceived = mScanMessage.frequencies().size() > 0 &&
+                                      mScanMessage.frequencies()[0] == targetFrequency;
+        }
+
+        if (mScanMessageType == FrontendScanMessageType::PROGRESS_PERCENT) {
+            ALOGD("[vts] Scan in progress...[%d%%]", mScanMessage.progressPercent());
+        }
+
+        mScanMessageReceived = false;
+        mScanMsgProcessed = true;
+        mMsgCondition.signal();
+        goto wait;
+    }
+
+    EXPECT_TRUE(scanMsgLockedReceived) << "Scan message LOCKED not received before END";
+    EXPECT_TRUE(targetFrequencyReceived) << "frequency not received before LOCKED on blindScan";
+    mScanMessageReceived = false;
+    mScanMsgProcessed = true;
+}
+
+uint32_t FrontendCallback::getTargetFrequency(FrontendSettings settings, FrontendType type) {
+    switch (type) {
+        case FrontendType::ANALOG:
+            return settings.analog().frequency;
+        case FrontendType::ATSC:
+            return settings.atsc().frequency;
+        case FrontendType::ATSC3:
+            return settings.atsc3().frequency;
+        case FrontendType::DVBC:
+            return settings.dvbc().frequency;
+        case FrontendType::DVBS:
+            return settings.dvbs().frequency;
+        case FrontendType::DVBT:
+            return settings.dvbt().frequency;
+        case FrontendType::ISDBS:
+            return settings.isdbs().frequency;
+        case FrontendType::ISDBS3:
+            return settings.isdbs3().frequency;
+        case FrontendType::ISDBT:
+            return settings.isdbt().frequency;
+        default:
+            return 0;
+    }
+}
+
+void FrontendCallback::resetBlindScanStartingFrequency(FrontendConfig& config,
+                                                       uint32_t resetingFreq) {
+    switch (config.type) {
+        case FrontendType::ANALOG:
+            config.settings.analog().frequency = resetingFreq;
+            break;
+        case FrontendType::ATSC:
+            config.settings.atsc().frequency = resetingFreq;
+            break;
+        case FrontendType::ATSC3:
+            config.settings.atsc3().frequency = resetingFreq;
+            break;
+        case FrontendType::DVBC:
+            config.settings.dvbc().frequency = resetingFreq;
+            break;
+        case FrontendType::DVBS:
+            config.settings.dvbs().frequency = resetingFreq;
+            break;
+        case FrontendType::DVBT:
+            config.settings.dvbt().frequency = resetingFreq;
+            break;
+        case FrontendType::ISDBS:
+            config.settings.isdbs().frequency = resetingFreq;
+            break;
+        case FrontendType::ISDBS3:
+            config.settings.isdbs3().frequency = resetingFreq;
+            break;
+        case FrontendType::ISDBT:
+            config.settings.isdbt().frequency = resetingFreq;
+            break;
+        default:
+            // do nothing
+            return;
+    }
+}
+
 AssertionResult FrontendTests::getFrontendIds() {
     Result status;
     mService->getFrontendIds([&](Result result, const hidl_vec<FrontendId>& frontendIds) {
@@ -86,6 +228,138 @@
     return AssertionResult(callbackStatus.isOk());
 }
 
+AssertionResult FrontendTests::scanFrontend(FrontendConfig config, FrontendScanType type) {
+    EXPECT_TRUE(mFrontendCallback)
+            << "test with openFrontendById/setFrontendCallback/getFrontendInfo first.";
+
+    EXPECT_TRUE(mFrontendInfo.type == config.type)
+            << "FrontendConfig does not match the frontend info of the given id.";
+
+    mFrontendCallback->scanTest(mFrontend, config, type);
+    return AssertionResult(true);
+}
+
+AssertionResult FrontendTests::stopScanFrontend() {
+    EXPECT_TRUE(mFrontend) << "Test with openFrontendById first.";
+    Result status;
+    status = mFrontend->stopScan();
+    return AssertionResult(status == Result::SUCCESS);
+}
+
+void FrontendTests::verifyFrontendStatus(vector<FrontendStatusType> statusTypes,
+                                         vector<FrontendStatus> expectStatuses) {
+    ASSERT_TRUE(mFrontend) << "Frontend is not opened yet.";
+    Result status;
+    vector<FrontendStatus> realStatuses;
+
+    mFrontend->getStatus(statusTypes, [&](Result result, const hidl_vec<FrontendStatus>& statuses) {
+        status = result;
+        realStatuses = statuses;
+    });
+
+    ASSERT_TRUE(realStatuses.size() == statusTypes.size());
+    for (int i = 0; i < statusTypes.size(); i++) {
+        FrontendStatusType type = statusTypes[i];
+        switch (type) {
+            case FrontendStatusType::DEMOD_LOCK: {
+                ASSERT_TRUE(realStatuses[i].isDemodLocked() == expectStatuses[i].isDemodLocked());
+                break;
+            }
+            case FrontendStatusType::SNR: {
+                ASSERT_TRUE(realStatuses[i].snr() == expectStatuses[i].snr());
+                break;
+            }
+            case FrontendStatusType::BER: {
+                ASSERT_TRUE(realStatuses[i].ber() == expectStatuses[i].ber());
+                break;
+            }
+            case FrontendStatusType::PER: {
+                ASSERT_TRUE(realStatuses[i].per() == expectStatuses[i].per());
+                break;
+            }
+            case FrontendStatusType::PRE_BER: {
+                ASSERT_TRUE(realStatuses[i].preBer() == expectStatuses[i].preBer());
+                break;
+            }
+            case FrontendStatusType::SIGNAL_QUALITY: {
+                ASSERT_TRUE(realStatuses[i].signalQuality() == expectStatuses[i].signalQuality());
+                break;
+            }
+            case FrontendStatusType::SIGNAL_STRENGTH: {
+                ASSERT_TRUE(realStatuses[i].signalStrength() == expectStatuses[i].signalStrength());
+                break;
+            }
+            case FrontendStatusType::SYMBOL_RATE: {
+                ASSERT_TRUE(realStatuses[i].symbolRate() == expectStatuses[i].symbolRate());
+                break;
+            }
+            case FrontendStatusType::FEC: {
+                ASSERT_TRUE(realStatuses[i].innerFec() == expectStatuses[i].innerFec());
+                break;
+            }
+            case FrontendStatusType::MODULATION: {
+                // TODO: check modulation status
+                break;
+            }
+            case FrontendStatusType::SPECTRAL: {
+                ASSERT_TRUE(realStatuses[i].inversion() == expectStatuses[i].inversion());
+                break;
+            }
+            case FrontendStatusType::LNB_VOLTAGE: {
+                ASSERT_TRUE(realStatuses[i].lnbVoltage() == expectStatuses[i].lnbVoltage());
+                break;
+            }
+            case FrontendStatusType::PLP_ID: {
+                ASSERT_TRUE(realStatuses[i].plpId() == expectStatuses[i].plpId());
+                break;
+            }
+            case FrontendStatusType::EWBS: {
+                ASSERT_TRUE(realStatuses[i].isEWBS() == expectStatuses[i].isEWBS());
+                break;
+            }
+            case FrontendStatusType::AGC: {
+                ASSERT_TRUE(realStatuses[i].agc() == expectStatuses[i].agc());
+                break;
+            }
+            case FrontendStatusType::LNA: {
+                ASSERT_TRUE(realStatuses[i].isLnaOn() == expectStatuses[i].isLnaOn());
+                break;
+            }
+            case FrontendStatusType::LAYER_ERROR: {
+                vector<bool> realLayberError = realStatuses[i].isLayerError();
+                vector<bool> expectLayerError = expectStatuses[i].isLayerError();
+                ASSERT_TRUE(realLayberError.size() == expectLayerError.size());
+                for (int i = 0; i < realLayberError.size(); i++) {
+                    ASSERT_TRUE(realLayberError[i] == expectLayerError[i]);
+                }
+                break;
+            }
+            case FrontendStatusType::MER: {
+                ASSERT_TRUE(realStatuses[i].mer() == expectStatuses[i].mer());
+                break;
+            }
+            case FrontendStatusType::FREQ_OFFSET: {
+                ASSERT_TRUE(realStatuses[i].freqOffset() == expectStatuses[i].freqOffset());
+                break;
+            }
+            case FrontendStatusType::HIERARCHY: {
+                ASSERT_TRUE(realStatuses[i].hierarchy() == expectStatuses[i].hierarchy());
+                break;
+            }
+            case FrontendStatusType::RF_LOCK: {
+                ASSERT_TRUE(realStatuses[i].isRfLocked() == expectStatuses[i].isRfLocked());
+                break;
+            }
+            case FrontendStatusType::ATSC3_PLP_INFO:
+                // TODO: verify plpinfo
+                break;
+            default:
+                continue;
+        }
+    }
+    ASSERT_TRUE(status == Result::SUCCESS);
+}
+
 AssertionResult FrontendTests::tuneFrontend(FrontendConfig config, bool testWithDemux) {
     EXPECT_TRUE(mFrontendCallback)
             << "test with openFrontendById/setFrontendCallback/getFrontendInfo first.";
@@ -106,7 +380,7 @@
             return failure();
         }
     }
-    mFrontendCallback->tuneTestOnLock(mFrontend, config.settings);
+    mFrontendCallback->tuneTestOnLock(mFrontend, config.settings, config.settingsExt);
     return AssertionResult(true);
 }
 
@@ -143,3 +417,26 @@
     }
     feId = INVALID_ID;
 }
+
+void FrontendTests::tuneTest(FrontendConfig frontendConf) {
+    uint32_t feId;
+    getFrontendIdByType(frontendConf.type, feId);
+    ASSERT_TRUE(feId != INVALID_ID);
+    ASSERT_TRUE(openFrontendById(feId));
+    ASSERT_TRUE(setFrontendCallback());
+    ASSERT_TRUE(tuneFrontend(frontendConf, false /*testWithDemux*/));
+    verifyFrontendStatus(frontendConf.tuneStatusTypes, frontendConf.expectTuneStatuses);
+    ASSERT_TRUE(stopTuneFrontend(false /*testWithDemux*/));
+    ASSERT_TRUE(closeFrontend());
+}
+
+void FrontendTests::scanTest(FrontendConfig frontendConf, FrontendScanType scanType) {
+    uint32_t feId;
+    getFrontendIdByType(frontendConf.type, feId);
+    ASSERT_TRUE(feId != INVALID_ID);
+    ASSERT_TRUE(openFrontendById(feId));
+    ASSERT_TRUE(setFrontendCallback());
+    ASSERT_TRUE(scanFrontend(frontendConf, scanType));
+    ASSERT_TRUE(stopScanFrontend());
+    ASSERT_TRUE(closeFrontend());
+}
diff --git a/tv/tuner/1.1/vts/functional/FrontendTests.h b/tv/tuner/1.1/vts/functional/FrontendTests.h
index 492f2f0..8986d81 100644
--- a/tv/tuner/1.1/vts/functional/FrontendTests.h
+++ b/tv/tuner/1.1/vts/functional/FrontendTests.h
@@ -15,9 +15,9 @@
  */
 
 #include <android-base/logging.h>
-#include <android/hardware/tv/tuner/1.0/IFrontend.h>
 #include <android/hardware/tv/tuner/1.0/IFrontendCallback.h>
 #include <android/hardware/tv/tuner/1.0/types.h>
+#include <android/hardware/tv/tuner/1.1/IFrontend.h>
 #include <android/hardware/tv/tuner/1.1/ITuner.h>
 #include <binder/MemoryDealer.h>
 #include <gtest/gtest.h>
@@ -52,6 +52,7 @@
 using android::hardware::tv::tuner::V1_0::FrontendInfo;
 using android::hardware::tv::tuner::V1_0::FrontendScanMessage;
 using android::hardware::tv::tuner::V1_0::FrontendScanMessageType;
+using android::hardware::tv::tuner::V1_0::FrontendScanType;
 using android::hardware::tv::tuner::V1_0::IFrontend;
 using android::hardware::tv::tuner::V1_0::IFrontendCallback;
 using android::hardware::tv::tuner::V1_0::Result;
@@ -70,11 +71,21 @@
     virtual Return<void> onScanMessage(FrontendScanMessageType type,
                                        const FrontendScanMessage& message) override;
 
-    void tuneTestOnLock(sp<IFrontend>& frontend, FrontendSettings settings);
+    void tuneTestOnLock(sp<IFrontend>& frontend, FrontendSettings settings,
+                        FrontendSettingsExt settingsExt);
+    void scanTest(sp<IFrontend>& frontend, FrontendConfig config, FrontendScanType type);
+
+    // Helper methods
+    uint32_t getTargetFrequency(FrontendSettings settings, FrontendType type);
+    void resetBlindScanStartingFrequency(FrontendConfig& config, uint32_t resetingFreq);
 
   private:
     bool mEventReceived = false;
+    bool mScanMessageReceived = false;
     bool mLockMsgReceived = false;
+    bool mScanMsgProcessed = true;
+    FrontendScanMessageType mScanMessageType;
+    FrontendScanMessage mScanMessage;
     hidl_vec<uint8_t> mEventMessage;
     android::Mutex mMsgLock;
     android::Condition mMsgCondition;
@@ -95,11 +106,17 @@
     AssertionResult getFrontendInfo(uint32_t frontendId);
     AssertionResult openFrontendById(uint32_t frontendId);
     AssertionResult setFrontendCallback();
+    AssertionResult scanFrontend(FrontendConfig config, FrontendScanType type);
+    AssertionResult stopScanFrontend();
     AssertionResult tuneFrontend(FrontendConfig config, bool testWithDemux);
+    void verifyFrontendStatus(vector<FrontendStatusType> statusTypes,
+                              vector<FrontendStatus> expectStatuses);
     AssertionResult stopTuneFrontend(bool testWithDemux);
     AssertionResult closeFrontend();
 
     void getFrontendIdByType(FrontendType feType, uint32_t& feId);
+    void tuneTest(FrontendConfig frontendConf);
+    void scanTest(FrontendConfig frontend, FrontendScanType type);
 
     void setDvrTests(DvrTests dvrTests) { mDvrTests = dvrTests; }
     void setDemux(sp<IDemux> demux) { mDvrTests.setDemux(demux); }
diff --git a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp
index c9873b2..c3df078 100644
--- a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp
+++ b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.cpp
@@ -132,6 +132,21 @@
     recordSingleFilterTest(filterArray[TS_RECORD0], frontendArray[DVBT], dvrArray[DVR_RECORD0]);
 }
 
+TEST_P(TunerFrontendHidlTest, TuneFrontendWithFrontendSettingsExt) {
+    description("Tune one Frontend with specific setting and check Lock event");
+    mFrontendTests.tuneTest(frontendArray[DVBT]);
+}
+
+TEST_P(TunerFrontendHidlTest, BlindScanFrontendWithEndFrequency) {
+    description("Run an blind frontend scan with specific setting and check lock scanMessage");
+    mFrontendTests.scanTest(frontendScanArray[SCAN_DVBT], FrontendScanType::SCAN_BLIND);
+}
+
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, TunerFrontendHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(ITuner::descriptor)),
+        android::hardware::PrintInstanceNameToString);
+
 INSTANTIATE_TEST_SUITE_P(
         PerInstance, TunerFilterHidlTest,
         testing::ValuesIn(android::hardware::getAllHalInstanceNames(ITuner::descriptor)),
@@ -146,8 +161,4 @@
         PerInstance, TunerRecordHidlTest,
         testing::ValuesIn(android::hardware::getAllHalInstanceNames(ITuner::descriptor)),
         android::hardware::PrintInstanceNameToString);
-
-GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerFilterHidlTest);
-GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerDemuxHidlTest);
-GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerRecordHidlTest);
 }  // namespace
diff --git a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.h b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.h
index 1b28853..505e35a 100644
--- a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.h
+++ b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TargetTest.h
@@ -21,6 +21,7 @@
 
 void initConfiguration() {
     initFrontendConfig();
+    initFrontendScanConfig();
     initFilterConfig();
     initDvrConfig();
 }
@@ -50,6 +51,8 @@
     FilterTests mFilterTests;
 };
 
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerFilterHidlTest);
+
 class TunerDemuxHidlTest : public testing::TestWithParam<std::string> {
   public:
     virtual void SetUp() override {
@@ -73,6 +76,8 @@
     FilterTests mFilterTests;
 };
 
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerDemuxHidlTest);
+
 class TunerRecordHidlTest : public testing::TestWithParam<std::string> {
   public:
     virtual void SetUp() override {
@@ -100,4 +105,27 @@
     FilterTests mFilterTests;
     DvrTests mDvrTests;
 };
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerRecordHidlTest);
+
+class TunerFrontendHidlTest : public testing::TestWithParam<std::string> {
+  public:
+    virtual void SetUp() override {
+        mService = ITuner::getService(GetParam());
+        ASSERT_NE(mService, nullptr);
+        initConfiguration();
+
+        mFrontendTests.setService(mService);
+    }
+
+  protected:
+    static void description(const std::string& description) {
+        RecordProperty("description", description);
+    }
+
+    sp<ITuner> mService;
+    FrontendTests mFrontendTests;
+};
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(TunerFrontendHidlTest);
 }  // namespace
\ No newline at end of file
diff --git a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TestConfigurations.h b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TestConfigurations.h
index 39872d2..34418d1 100644
--- a/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TestConfigurations.h
+++ b/tv/tuner/1.1/vts/functional/VtsHalTvTunerV1_1TestConfigurations.h
@@ -46,6 +46,7 @@
 using android::hardware::tv::tuner::V1_0::FrontendType;
 using android::hardware::tv::tuner::V1_0::PlaybackSettings;
 using android::hardware::tv::tuner::V1_0::RecordSettings;
+using android::hardware::tv::tuner::V1_1::FrontendSettingsExt;
 
 using namespace std;
 
@@ -73,6 +74,11 @@
 } Frontend;
 
 typedef enum {
+    SCAN_DVBT,
+    SCAN_MAX,
+} FrontendScan;
+
+typedef enum {
     DVR_RECORD0,
     DVR_PLAYBACK0,
     DVR_MAX,
@@ -90,6 +96,7 @@
     bool isSoftwareFe;
     FrontendType type;
     FrontendSettings settings;
+    FrontendSettingsExt settingsExt;
     vector<FrontendStatusType> tuneStatusTypes;
     vector<FrontendStatus> expectTuneStatuses;
 };
@@ -102,6 +109,7 @@
 };
 
 static FrontendConfig frontendArray[FILTER_MAX];
+static FrontendConfig frontendScanArray[SCAN_MAX];
 static FilterConfig filterArray[FILTER_MAX];
 static DvrConfig dvrArray[DVR_MAX];
 
@@ -129,10 +137,36 @@
     frontendArray[DVBT].tuneStatusTypes = types;
     frontendArray[DVBT].expectTuneStatuses = statuses;
     frontendArray[DVBT].isSoftwareFe = true;
+    frontendArray[DVBT].settingsExt.settingExt.dvbt({
+            .transmissionMode =
+                    android::hardware::tv::tuner::V1_1::FrontendDvbtTransmissionMode::MODE_8K_E,
+    });
     frontendArray[DVBS].type = FrontendType::DVBS;
     frontendArray[DVBS].isSoftwareFe = true;
 };
 
+/** Configuration array for the frontend scan test */
+inline void initFrontendScanConfig() {
+    frontendScanArray[SCAN_DVBT].type = FrontendType::DVBT;
+    frontendScanArray[SCAN_DVBT].settings.dvbt({
+            .frequency = 578000,
+            .transmissionMode = FrontendDvbtTransmissionMode::MODE_8K,
+            .bandwidth = FrontendDvbtBandwidth::BANDWIDTH_8MHZ,
+            .constellation = FrontendDvbtConstellation::AUTO,
+            .hierarchy = FrontendDvbtHierarchy::AUTO,
+            .hpCoderate = FrontendDvbtCoderate::AUTO,
+            .lpCoderate = FrontendDvbtCoderate::AUTO,
+            .guardInterval = FrontendDvbtGuardInterval::AUTO,
+            .isHighPriority = true,
+            .standard = FrontendDvbtStandard::T,
+    });
+    frontendScanArray[SCAN_DVBT].settingsExt.endFrequency = 800000;
+    frontendScanArray[SCAN_DVBT].settingsExt.settingExt.dvbt({
+            .transmissionMode =
+                    android::hardware::tv::tuner::V1_1::FrontendDvbtTransmissionMode::MODE_8K_E,
+    });
+};
+
 /** Configuration array for the filter test */
 inline void initFilterConfig() {
     // TS VIDEO filter setting for default implementation testing
diff --git a/vibrator/bench/Android.bp b/vibrator/bench/Android.bp
new file mode 100644
index 0000000..c7f824d
--- /dev/null
+++ b/vibrator/bench/Android.bp
@@ -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.
+
+cc_benchmark {
+    name: "VibratorHalIntegrationBenchmark",
+    defaults: ["hidl_defaults"],
+    srcs: [
+        "benchmark.cpp",
+    ],
+    shared_libs: [
+        "android.hardware.vibrator-cpp",
+        "android.hardware.vibrator@1.0",
+        "android.hardware.vibrator@1.1",
+        "android.hardware.vibrator@1.2",
+        "android.hardware.vibrator@1.3",
+        "libbinder",
+        "libhardware",
+        "libhidlbase",
+        "libutils",
+    ],
+    test_suites: ["device-tests"],
+}
diff --git a/vibrator/bench/benchmark.cpp b/vibrator/bench/benchmark.cpp
new file mode 100644
index 0000000..e19dc6f
--- /dev/null
+++ b/vibrator/bench/benchmark.cpp
@@ -0,0 +1,577 @@
+/*
+ * 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 "benchmark/benchmark.h"
+
+#include <android/hardware/vibrator/1.3/IVibrator.h>
+#include <android/hardware/vibrator/BnVibratorCallback.h>
+#include <android/hardware/vibrator/IVibrator.h>
+#include <binder/IServiceManager.h>
+
+using ::android::enum_range;
+using ::android::sp;
+using ::android::hardware::hidl_enum_range;
+using ::android::hardware::Return;
+using ::android::hardware::details::hidl_enum_values;
+using ::benchmark::Counter;
+using ::benchmark::Fixture;
+using ::benchmark::kMicrosecond;
+using ::benchmark::State;
+using ::benchmark::internal::Benchmark;
+using ::std::chrono::duration;
+using ::std::chrono::duration_cast;
+using ::std::chrono::high_resolution_clock;
+
+namespace Aidl = ::android::hardware::vibrator;
+namespace V1_0 = ::android::hardware::vibrator::V1_0;
+namespace V1_1 = ::android::hardware::vibrator::V1_1;
+namespace V1_2 = ::android::hardware::vibrator::V1_2;
+namespace V1_3 = ::android::hardware::vibrator::V1_3;
+
+template <typename I>
+class BaseBench : public Fixture {
+  public:
+    void TearDown(State& /*state*/) override {
+        if (!mVibrator) {
+            return;
+        }
+        mVibrator->off();
+    }
+
+    static void DefaultConfig(Benchmark* b) { b->Unit(kMicrosecond); }
+
+    static void DefaultArgs(Benchmark* /*b*/) { /* none */
+    }
+
+  protected:
+    auto getOtherArg(const State& state, std::size_t index) const { return state.range(index + 0); }
+
+  protected:
+    sp<I> mVibrator;
+};
+
+template <typename I>
+class VibratorBench : public BaseBench<I> {
+  public:
+    void SetUp(State& /*state*/) override { this->mVibrator = I::getService(); }
+};
+
+enum class EmptyEnum : uint32_t;
+template <>
+inline constexpr std::array<EmptyEnum, 0> hidl_enum_values<EmptyEnum> = {};
+
+template <typename T, typename U>
+std::set<T> difference(const hidl_enum_range<T>& t, const hidl_enum_range<U>& u) {
+    class Compare {
+      public:
+        bool operator()(const T& a, const U& b) { return a < static_cast<T>(b); }
+        bool operator()(const U& a, const T& b) { return static_cast<T>(a) < b; }
+    };
+    std::set<T> ret;
+
+    std::set_difference(t.begin(), t.end(), u.begin(), u.end(),
+                        std::insert_iterator<decltype(ret)>(ret, ret.begin()), Compare());
+
+    return ret;
+}
+
+template <typename I, typename E1, typename E2 = EmptyEnum>
+class VibratorEffectsBench : public VibratorBench<I> {
+  public:
+    using Effect = E1;
+    using EffectStrength = V1_0::EffectStrength;
+    using Status = V1_0::Status;
+
+  public:
+    static void DefaultArgs(Benchmark* b) {
+        b->ArgNames({"Effect", "Strength"});
+        for (const auto& effect : difference(hidl_enum_range<E1>(), hidl_enum_range<E2>())) {
+            for (const auto& strength : hidl_enum_range<EffectStrength>()) {
+                b->Args({static_cast<long>(effect), static_cast<long>(strength)});
+            }
+        }
+    }
+
+    void performBench(State* state, Return<void> (I::*performApi)(Effect, EffectStrength,
+                                                                  typename I::perform_cb)) {
+        auto effect = getEffect(*state);
+        auto strength = getStrength(*state);
+        bool supported = true;
+
+        (*this->mVibrator.*performApi)(effect, strength, [&](Status status, uint32_t /*lengthMs*/) {
+            if (status == Status::UNSUPPORTED_OPERATION) {
+                supported = false;
+            }
+        });
+
+        if (!supported) {
+            return;
+        }
+
+        for (auto _ : *state) {
+            state->ResumeTiming();
+            (*this->mVibrator.*performApi)(effect, strength,
+                                           [](Status /*status*/, uint32_t /*lengthMs*/) {});
+            state->PauseTiming();
+            this->mVibrator->off();
+        }
+    }
+
+  protected:
+    auto getEffect(const State& state) const {
+        return static_cast<Effect>(this->getOtherArg(state, 0));
+    }
+
+    auto getStrength(const State& state) const {
+        return static_cast<EffectStrength>(this->getOtherArg(state, 1));
+    }
+};
+
+#define BENCHMARK_WRAPPER(fixt, test, code) \
+    BENCHMARK_DEFINE_F(fixt, test)          \
+    /* NOLINTNEXTLINE */                    \
+    (State & state) {                       \
+        if (!mVibrator) {                   \
+            return;                         \
+        }                                   \
+                                            \
+        code                                \
+    }                                       \
+    BENCHMARK_REGISTER_F(fixt, test)->Apply(fixt::DefaultConfig)->Apply(fixt::DefaultArgs)
+
+using VibratorBench_V1_0 = VibratorBench<V1_0::IVibrator>;
+
+BENCHMARK_WRAPPER(VibratorBench_V1_0, on, {
+    uint32_t ms = UINT32_MAX;
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->on(ms);
+        state.PauseTiming();
+        mVibrator->off();
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_V1_0, off, {
+    uint32_t ms = UINT32_MAX;
+
+    for (auto _ : state) {
+        state.PauseTiming();
+        mVibrator->on(ms);
+        state.ResumeTiming();
+        mVibrator->off();
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_V1_0, supportsAmplitudeControl, {
+    for (auto _ : state) {
+        mVibrator->supportsAmplitudeControl();
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_V1_0, setAmplitude, {
+    uint8_t amplitude = UINT8_MAX;
+
+    if (!mVibrator->supportsAmplitudeControl()) {
+        return;
+    }
+
+    mVibrator->on(UINT32_MAX);
+
+    for (auto _ : state) {
+        mVibrator->setAmplitude(amplitude);
+    }
+
+    mVibrator->off();
+});
+
+using VibratorEffectsBench_V1_0 = VibratorEffectsBench<V1_0::IVibrator, V1_0::Effect>;
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_V1_0, perform,
+                  { performBench(&state, &V1_0::IVibrator::perform); });
+
+using VibratorEffectsBench_V1_1 =
+        VibratorEffectsBench<V1_1::IVibrator, V1_1::Effect_1_1, V1_0::Effect>;
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_V1_1, perform_1_1,
+                  { performBench(&state, &V1_1::IVibrator::perform_1_1); });
+
+using VibratorEffectsBench_V1_2 =
+        VibratorEffectsBench<V1_2::IVibrator, V1_2::Effect, V1_1::Effect_1_1>;
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_V1_2, perform_1_2,
+                  { performBench(&state, &V1_2::IVibrator::perform_1_2); });
+
+using VibratorBench_V1_3 = VibratorBench<V1_3::IVibrator>;
+
+BENCHMARK_WRAPPER(VibratorBench_V1_3, supportsExternalControl, {
+    for (auto _ : state) {
+        mVibrator->supportsExternalControl();
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_V1_3, setExternalControl, {
+    bool enable = true;
+
+    if (!mVibrator->supportsExternalControl()) {
+        return;
+    }
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->setExternalControl(enable);
+        state.PauseTiming();
+        mVibrator->setExternalControl(false);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_V1_3, supportsExternalAmplitudeControl, {
+    if (!mVibrator->supportsExternalControl()) {
+        return;
+    }
+
+    mVibrator->setExternalControl(true);
+
+    for (auto _ : state) {
+        mVibrator->supportsAmplitudeControl();
+    }
+
+    mVibrator->setExternalControl(false);
+});
+
+BENCHMARK_WRAPPER(VibratorBench_V1_3, setExternalAmplitude, {
+    uint8_t amplitude = UINT8_MAX;
+
+    if (!mVibrator->supportsExternalControl()) {
+        return;
+    }
+
+    mVibrator->setExternalControl(true);
+
+    if (!mVibrator->supportsAmplitudeControl()) {
+        return;
+    }
+
+    for (auto _ : state) {
+        mVibrator->setAmplitude(amplitude);
+    }
+
+    mVibrator->setExternalControl(false);
+});
+
+using VibratorEffectsBench_V1_3 = VibratorEffectsBench<V1_3::IVibrator, V1_3::Effect, V1_2::Effect>;
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_V1_3, perform_1_3,
+                  { performBench(&state, &V1_3::IVibrator::perform_1_3); });
+
+class VibratorBench_Aidl : public BaseBench<Aidl::IVibrator> {
+  public:
+    void SetUp(State& /*state*/) override {
+        this->mVibrator = android::waitForVintfService<Aidl::IVibrator>();
+    }
+};
+
+class HalCallback : public Aidl::BnVibratorCallback {
+  public:
+    HalCallback() = default;
+    ~HalCallback() = default;
+
+    android::binder::Status onComplete() override { return android::binder::Status::ok(); }
+};
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, on, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+
+    int32_t ms = INT32_MAX;
+    auto cb = (capabilities & Aidl::IVibrator::CAP_ON_CALLBACK) ? new HalCallback() : nullptr;
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->on(ms, cb);
+        state.PauseTiming();
+        mVibrator->off();
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, off, {
+    for (auto _ : state) {
+        state.PauseTiming();
+        mVibrator->on(INT32_MAX, nullptr);
+        state.ResumeTiming();
+        mVibrator->off();
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, getCapabilities, {
+    int32_t capabilities = 0;
+
+    for (auto _ : state) {
+        mVibrator->getCapabilities(&capabilities);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, setAmplitude, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_AMPLITUDE_CONTROL) == 0) {
+        return;
+    }
+
+    float amplitude = 1.0f;
+    mVibrator->on(INT32_MAX, nullptr);
+
+    for (auto _ : state) {
+        mVibrator->setAmplitude(amplitude);
+    }
+
+    mVibrator->off();
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, setExternalControl, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_EXTERNAL_CONTROL) == 0) {
+        return;
+    }
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->setExternalControl(true);
+        state.PauseTiming();
+        mVibrator->setExternalControl(false);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, setExternalAmplitude, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_EXTERNAL_CONTROL) == 0 ||
+        (capabilities & Aidl::IVibrator::CAP_EXTERNAL_AMPLITUDE_CONTROL) == 0) {
+        return;
+    }
+
+    float amplitude = 1.0f;
+    mVibrator->setExternalControl(true);
+
+    for (auto _ : state) {
+        mVibrator->setAmplitude(amplitude);
+    }
+
+    mVibrator->setExternalControl(false);
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, getSupportedEffects, {
+    std::vector<Aidl::Effect> supportedEffects;
+
+    for (auto _ : state) {
+        mVibrator->getSupportedEffects(&supportedEffects);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, getSupportedAlwaysOnEffects, {
+    std::vector<Aidl::Effect> supportedEffects;
+
+    for (auto _ : state) {
+        mVibrator->getSupportedAlwaysOnEffects(&supportedEffects);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, getSupportedPrimitives, {
+    std::vector<Aidl::CompositePrimitive> supportedPrimitives;
+
+    for (auto _ : state) {
+        mVibrator->getSupportedPrimitives(&supportedPrimitives);
+    }
+});
+
+class VibratorEffectsBench_Aidl : public VibratorBench_Aidl {
+  public:
+    static void DefaultArgs(Benchmark* b) {
+        b->ArgNames({"Effect", "Strength"});
+        for (const auto& effect : enum_range<Aidl::Effect>()) {
+            for (const auto& strength : enum_range<Aidl::EffectStrength>()) {
+                b->Args({static_cast<long>(effect), static_cast<long>(strength)});
+            }
+        }
+    }
+
+  protected:
+    auto getEffect(const State& state) const {
+        return static_cast<Aidl::Effect>(this->getOtherArg(state, 0));
+    }
+
+    auto getStrength(const State& state) const {
+        return static_cast<Aidl::EffectStrength>(this->getOtherArg(state, 1));
+    }
+};
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_Aidl, alwaysOnEnable, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_ALWAYS_ON_CONTROL) == 0) {
+        return;
+    }
+
+    int32_t id = 1;
+    auto effect = getEffect(state);
+    auto strength = getStrength(state);
+
+    std::vector<Aidl::Effect> supported;
+    mVibrator->getSupportedAlwaysOnEffects(&supported);
+    if (std::find(supported.begin(), supported.end(), effect) == supported.end()) {
+        return;
+    }
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->alwaysOnEnable(id, effect, strength);
+        state.PauseTiming();
+        mVibrator->alwaysOnDisable(id);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_Aidl, alwaysOnDisable, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_ALWAYS_ON_CONTROL) == 0) {
+        return;
+    }
+
+    int32_t id = 1;
+    auto effect = getEffect(state);
+    auto strength = getStrength(state);
+
+    std::vector<Aidl::Effect> supported;
+    mVibrator->getSupportedAlwaysOnEffects(&supported);
+    if (std::find(supported.begin(), supported.end(), effect) == supported.end()) {
+        return;
+    }
+
+    for (auto _ : state) {
+        state.PauseTiming();
+        mVibrator->alwaysOnEnable(id, effect, strength);
+        state.ResumeTiming();
+        mVibrator->alwaysOnDisable(id);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorEffectsBench_Aidl, perform, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+
+    auto effect = getEffect(state);
+    auto strength = getStrength(state);
+    auto cb = (capabilities & Aidl::IVibrator::CAP_PERFORM_CALLBACK) ? new HalCallback() : nullptr;
+    int32_t lengthMs = 0;
+
+    std::vector<Aidl::Effect> supported;
+    mVibrator->getSupportedEffects(&supported);
+    if (std::find(supported.begin(), supported.end(), effect) == supported.end()) {
+        return;
+    }
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->perform(effect, strength, cb, &lengthMs);
+        state.PauseTiming();
+        mVibrator->off();
+    }
+});
+
+class VibratorPrimitivesBench_Aidl : public VibratorBench_Aidl {
+  public:
+    static void DefaultArgs(Benchmark* b) {
+        b->ArgNames({"Primitive"});
+        for (const auto& primitive : enum_range<Aidl::CompositePrimitive>()) {
+            b->Args({static_cast<long>(primitive)});
+        }
+    }
+
+  protected:
+    auto getPrimitive(const State& state) const {
+        return static_cast<Aidl::CompositePrimitive>(this->getOtherArg(state, 0));
+    }
+};
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, getCompositionDelayMax, {
+    int32_t ms = 0;
+
+    for (auto _ : state) {
+        mVibrator->getCompositionDelayMax(&ms);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorBench_Aidl, getCompositionSizeMax, {
+    int32_t size = 0;
+
+    for (auto _ : state) {
+        mVibrator->getCompositionSizeMax(&size);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorPrimitivesBench_Aidl, getPrimitiveDuration, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_COMPOSE_EFFECTS) == 0) {
+        return;
+    }
+
+    auto primitive = getPrimitive(state);
+    int32_t ms = 0;
+
+    std::vector<Aidl::CompositePrimitive> supported;
+    mVibrator->getSupportedPrimitives(&supported);
+    if (std::find(supported.begin(), supported.end(), primitive) == supported.end()) {
+        return;
+    }
+
+    for (auto _ : state) {
+        mVibrator->getPrimitiveDuration(primitive, &ms);
+    }
+});
+
+BENCHMARK_WRAPPER(VibratorPrimitivesBench_Aidl, compose, {
+    int32_t capabilities = 0;
+    mVibrator->getCapabilities(&capabilities);
+    if ((capabilities & Aidl::IVibrator::CAP_COMPOSE_EFFECTS) == 0) {
+        return;
+    }
+
+    Aidl::CompositeEffect effect;
+    effect.primitive = getPrimitive(state);
+    effect.scale = 1.0f;
+    effect.delayMs = 0;
+
+    std::vector<Aidl::CompositePrimitive> supported;
+    mVibrator->getSupportedPrimitives(&supported);
+    if (std::find(supported.begin(), supported.end(), effect.primitive) == supported.end()) {
+        return;
+    }
+
+    auto cb = new HalCallback();
+    std::vector<Aidl::CompositeEffect> effects;
+    effects.push_back(effect);
+
+    for (auto _ : state) {
+        state.ResumeTiming();
+        mVibrator->compose(effects, cb);
+        state.PauseTiming();
+        mVibrator->off();
+    }
+});
+
+BENCHMARK_MAIN();
diff --git a/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp b/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
index 5b11dd3..092822f 100644
--- a/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
+++ b/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
@@ -112,7 +112,7 @@
     const auto& status_and_chip_ids = HIDL_INVOKE(wifi, getChipIds);
     const auto& chip_ids = status_and_chip_ids.second;
     if (status_and_chip_ids.first.code != WifiStatusCode::SUCCESS ||
-        chip_ids.size() != 1) {
+        chip_ids.size() < 1) {
         return nullptr;
     }
     const auto& status_and_chip = HIDL_INVOKE(wifi, getChip, chip_ids[0]);
diff --git a/wifi/1.5/default/Android.mk b/wifi/1.5/default/Android.mk
index 236dae2..dc9e89b 100644
--- a/wifi/1.5/default/Android.mk
+++ b/wifi/1.5/default/Android.mk
@@ -51,6 +51,7 @@
     wifi_feature_flags.cpp \
     wifi_iface_util.cpp \
     wifi_legacy_hal.cpp \
+    wifi_legacy_hal_factory.cpp \
     wifi_legacy_hal_stubs.cpp \
     wifi_mode_controller.cpp \
     wifi_nan_iface.cpp \
@@ -67,12 +68,14 @@
     libutils \
     libwifi-hal \
     libwifi-system-iface \
+    libxml2 \
     android.hardware.wifi@1.0 \
     android.hardware.wifi@1.1 \
     android.hardware.wifi@1.2 \
     android.hardware.wifi@1.3 \
     android.hardware.wifi@1.4 \
     android.hardware.wifi@1.5
+LOCAL_C_INCLUDES += $(TOP)/external/libxml2/include
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
 include $(BUILD_STATIC_LIBRARY)
 
@@ -96,6 +99,7 @@
     libutils \
     libwifi-hal \
     libwifi-system-iface \
+    libxml2 \
     android.hardware.wifi@1.0 \
     android.hardware.wifi@1.1 \
     android.hardware.wifi@1.2 \
@@ -129,6 +133,7 @@
     libutils \
     libwifi-hal \
     libwifi-system-iface \
+    libxml2 \
     android.hardware.wifi@1.0 \
     android.hardware.wifi@1.1 \
     android.hardware.wifi@1.2 \
diff --git a/wifi/1.5/default/service.cpp b/wifi/1.5/default/service.cpp
index f53d528..8539a37 100644
--- a/wifi/1.5/default/service.cpp
+++ b/wifi/1.5/default/service.cpp
@@ -23,6 +23,7 @@
 #include "wifi.h"
 #include "wifi_feature_flags.h"
 #include "wifi_legacy_hal.h"
+#include "wifi_legacy_hal_factory.h"
 #include "wifi_mode_controller.h"
 
 using android::hardware::configureRpcThreadpool;
@@ -32,6 +33,8 @@
     WifiFeatureFlags;
 using android::hardware::wifi::V1_5::implementation::iface_util::WifiIfaceUtil;
 using android::hardware::wifi::V1_5::implementation::legacy_hal::WifiLegacyHal;
+using android::hardware::wifi::V1_5::implementation::legacy_hal::
+    WifiLegacyHalFactory;
 using android::hardware::wifi::V1_5::implementation::mode_controller::
     WifiModeController;
 
@@ -50,10 +53,13 @@
 
     const auto iface_tool =
         std::make_shared<android::wifi_system::InterfaceTool>();
+    const auto legacy_hal_factory =
+        std::make_shared<WifiLegacyHalFactory>(iface_tool);
+
     // Setup hwbinder service
     android::sp<android::hardware::wifi::V1_5::IWifi> service =
         new android::hardware::wifi::V1_5::implementation::Wifi(
-            iface_tool, std::make_shared<WifiLegacyHal>(iface_tool),
+            iface_tool, legacy_hal_factory,
             std::make_shared<WifiModeController>(),
             std::make_shared<WifiIfaceUtil>(iface_tool),
             std::make_shared<WifiFeatureFlags>());
diff --git a/wifi/1.5/default/tests/mock_wifi_feature_flags.h b/wifi/1.5/default/tests/mock_wifi_feature_flags.h
index 92fbb05..c3877ed 100644
--- a/wifi/1.5/default/tests/mock_wifi_feature_flags.h
+++ b/wifi/1.5/default/tests/mock_wifi_feature_flags.h
@@ -33,7 +33,8 @@
    public:
     MockWifiFeatureFlags();
 
-    MOCK_METHOD0(getChipModes, std::vector<V1_0::IWifiChip::ChipMode>());
+    MOCK_METHOD1(getChipModes,
+                 std::vector<V1_0::IWifiChip::ChipMode>(bool is_primary));
     MOCK_METHOD0(isApMacRandomizationDisabled, bool());
 };
 
diff --git a/wifi/1.5/default/tests/mock_wifi_legacy_hal.cpp b/wifi/1.5/default/tests/mock_wifi_legacy_hal.cpp
index 501bd7f..d13c556 100644
--- a/wifi/1.5/default/tests/mock_wifi_legacy_hal.cpp
+++ b/wifi/1.5/default/tests/mock_wifi_legacy_hal.cpp
@@ -29,8 +29,9 @@
 namespace legacy_hal {
 
 MockWifiLegacyHal::MockWifiLegacyHal(
-    const std::weak_ptr<wifi_system::InterfaceTool> iface_tool)
-    : WifiLegacyHal(iface_tool) {}
+    const std::weak_ptr<wifi_system::InterfaceTool> iface_tool,
+    const wifi_hal_fn& fn, bool is_primary)
+    : WifiLegacyHal(iface_tool, fn, is_primary) {}
 }  // namespace legacy_hal
 }  // namespace implementation
 }  // namespace V1_5
diff --git a/wifi/1.5/default/tests/mock_wifi_legacy_hal.h b/wifi/1.5/default/tests/mock_wifi_legacy_hal.h
index f938347..9ab2fd5 100644
--- a/wifi/1.5/default/tests/mock_wifi_legacy_hal.h
+++ b/wifi/1.5/default/tests/mock_wifi_legacy_hal.h
@@ -31,7 +31,8 @@
 class MockWifiLegacyHal : public WifiLegacyHal {
    public:
     MockWifiLegacyHal(
-        const std::weak_ptr<wifi_system::InterfaceTool> iface_tool);
+        const std::weak_ptr<wifi_system::InterfaceTool> iface_tool,
+        const wifi_hal_fn& fn, bool is_primary);
     MOCK_METHOD0(initialize, wifi_error());
     MOCK_METHOD0(start, wifi_error());
     MOCK_METHOD2(stop, wifi_error(std::unique_lock<std::recursive_mutex>*,
diff --git a/wifi/1.5/default/tests/wifi_chip_unit_tests.cpp b/wifi/1.5/default/tests/wifi_chip_unit_tests.cpp
index 1d55e16..d99bfbd 100644
--- a/wifi/1.5/default/tests/wifi_chip_unit_tests.cpp
+++ b/wifi/1.5/default/tests/wifi_chip_unit_tests.cpp
@@ -59,7 +59,7 @@
             {feature_flags::chip_mode_ids::kV1Ap, combinationsAp}
         };
         // clang-format on
-        EXPECT_CALL(*feature_flags_, getChipModes())
+        EXPECT_CALL(*feature_flags_, getChipModes(true))
             .WillRepeatedly(testing::Return(modes));
     }
 
@@ -76,7 +76,7 @@
             {feature_flags::chip_mode_ids::kV1Ap, combinationsAp}
         };
         // clang-format on
-        EXPECT_CALL(*feature_flags_, getChipModes())
+        EXPECT_CALL(*feature_flags_, getChipModes(true))
             .WillRepeatedly(testing::Return(modes));
     }
 
@@ -89,7 +89,7 @@
             {feature_flags::chip_mode_ids::kV1Sta, combinationsSta}
         };
         // clang-format on
-        EXPECT_CALL(*feature_flags_, getChipModes())
+        EXPECT_CALL(*feature_flags_, getChipModes(true))
             .WillRepeatedly(testing::Return(modes));
     }
 
@@ -103,7 +103,7 @@
             {feature_flags::chip_mode_ids::kV3, combinations}
         };
         // clang-format on
-        EXPECT_CALL(*feature_flags_, getChipModes())
+        EXPECT_CALL(*feature_flags_, getChipModes(true))
             .WillRepeatedly(testing::Return(modes));
     }
 
@@ -116,7 +116,7 @@
             {feature_flags::chip_mode_ids::kV3, combinations}
         };
         // clang-format on
-        EXPECT_CALL(*feature_flags_, getChipModes())
+        EXPECT_CALL(*feature_flags_, getChipModes(true))
             .WillRepeatedly(testing::Return(modes));
     }
 
@@ -129,7 +129,7 @@
             {feature_flags::chip_mode_ids::kV3, combinations}
         };
         // clang-format on
-        EXPECT_CALL(*feature_flags_, getChipModes())
+        EXPECT_CALL(*feature_flags_, getChipModes(true))
             .WillRepeatedly(testing::Return(modes));
     }
 
@@ -267,10 +267,12 @@
 
     sp<WifiChip> chip_;
     ChipId chip_id_ = kFakeChipId;
+    legacy_hal::wifi_hal_fn fake_func_table_;
     std::shared_ptr<NiceMock<wifi_system::MockInterfaceTool>> iface_tool_{
         new NiceMock<wifi_system::MockInterfaceTool>};
     std::shared_ptr<NiceMock<legacy_hal::MockWifiLegacyHal>> legacy_hal_{
-        new NiceMock<legacy_hal::MockWifiLegacyHal>(iface_tool_)};
+        new NiceMock<legacy_hal::MockWifiLegacyHal>(iface_tool_,
+                                                    fake_func_table_, true)};
     std::shared_ptr<NiceMock<mode_controller::MockWifiModeController>>
         mode_controller_{new NiceMock<mode_controller::MockWifiModeController>};
     std::shared_ptr<NiceMock<iface_util::MockWifiIfaceUtil>> iface_util_{
@@ -281,8 +283,8 @@
    public:
     void SetUp() override {
         chip_ =
-            new WifiChip(chip_id_, legacy_hal_, mode_controller_, iface_util_,
-                         feature_flags_, subsystemRestartHandler);
+            new WifiChip(chip_id_, true, legacy_hal_, mode_controller_,
+                         iface_util_, feature_flags_, subsystemRestartHandler);
 
         EXPECT_CALL(*mode_controller_, changeFirmwareMode(testing::_))
             .WillRepeatedly(testing::Return(true));
diff --git a/wifi/1.5/default/tests/wifi_nan_iface_unit_tests.cpp b/wifi/1.5/default/tests/wifi_nan_iface_unit_tests.cpp
index 3e7026f..411190b 100644
--- a/wifi/1.5/default/tests/wifi_nan_iface_unit_tests.cpp
+++ b/wifi/1.5/default/tests/wifi_nan_iface_unit_tests.cpp
@@ -112,10 +112,12 @@
 
 class WifiNanIfaceTest : public Test {
    protected:
+    legacy_hal::wifi_hal_fn fake_func_table_;
     std::shared_ptr<NiceMock<wifi_system::MockInterfaceTool>> iface_tool_{
         new NiceMock<wifi_system::MockInterfaceTool>};
     std::shared_ptr<NiceMock<legacy_hal::MockWifiLegacyHal>> legacy_hal_{
-        new NiceMock<legacy_hal::MockWifiLegacyHal>(iface_tool_)};
+        new NiceMock<legacy_hal::MockWifiLegacyHal>(iface_tool_,
+                                                    fake_func_table_, true)};
     std::shared_ptr<NiceMock<iface_util::MockWifiIfaceUtil>> iface_util_{
         new NiceMock<iface_util::MockWifiIfaceUtil>(iface_tool_)};
 };
diff --git a/wifi/1.5/default/wifi.cpp b/wifi/1.5/default/wifi.cpp
index c4e2333..17db51d 100644
--- a/wifi/1.5/default/wifi.cpp
+++ b/wifi/1.5/default/wifi.cpp
@@ -21,8 +21,8 @@
 #include "wifi_status_util.h"
 
 namespace {
-// Chip ID to use for the only supported chip.
-static constexpr android::hardware::wifi::V1_0::ChipId kChipId = 0;
+// Starting Chip ID, will be assigned to primary chip
+static constexpr android::hardware::wifi::V1_0::ChipId kPrimaryChipId = 0;
 }  // namespace
 
 namespace android {
@@ -35,12 +35,12 @@
 
 Wifi::Wifi(
     const std::shared_ptr<wifi_system::InterfaceTool> iface_tool,
-    const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+    const std::shared_ptr<legacy_hal::WifiLegacyHalFactory> legacy_hal_factory,
     const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
     const std::shared_ptr<iface_util::WifiIfaceUtil> iface_util,
     const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags)
     : iface_tool_(iface_tool),
-      legacy_hal_(legacy_hal),
+      legacy_hal_factory_(legacy_hal_factory),
       mode_controller_(mode_controller),
       iface_util_(iface_util),
       feature_flags_(feature_flags),
@@ -84,10 +84,16 @@
 Return<void> Wifi::debug(const hidl_handle& handle,
                          const hidl_vec<hidl_string>&) {
     LOG(INFO) << "-----------Debug is called----------------";
-    if (!chip_.get()) {
+    if (chips_.size() == 0) {
         return Void();
     }
-    return chip_->debug(handle, {});
+
+    for (sp<WifiChip> chip : chips_) {
+        if (!chip.get()) continue;
+
+        chip->debug(handle, {});
+    }
+    return Void();
 }
 
 WifiStatus Wifi::registerEventCallbackInternal(
@@ -120,10 +126,13 @@
             };
 
         // Create the chip instance once the HAL is started.
-        // Need to consider the case of multiple chips TODO(156998862)
-        chip_ =
-            new WifiChip(kChipId, legacy_hal_, mode_controller_, iface_util_,
-                         feature_flags_, on_subsystem_restart_callback);
+        android::hardware::wifi::V1_0::ChipId chipId = kPrimaryChipId;
+        for (auto& hal : legacy_hals_) {
+            chips_.push_back(new WifiChip(
+                chipId, chipId == kPrimaryChipId, hal, mode_controller_,
+                iface_util_, feature_flags_, on_subsystem_restart_callback));
+            chipId++;
+        }
         run_state_ = RunState::STARTED;
         for (const auto& callback : event_cb_handler_.getCallbacks()) {
             if (!callback->onStart().isOk()) {
@@ -154,10 +163,13 @@
     }
     // Clear the chip object and its child objects since the HAL is now
     // stopped.
-    if (chip_.get()) {
-        chip_->invalidate();
-        chip_.clear();
+    for (auto& chip : chips_) {
+        if (chip.get()) {
+            chip->invalidate();
+            chip.clear();
+        }
     }
+    chips_.clear();
     WifiStatus wifi_status = stopLegacyHalAndDeinitializeModeController(lock);
     if (wifi_status.code == WifiStatusCode::SUCCESS) {
         for (const auto& callback : event_cb_handler_.getCallbacks()) {
@@ -181,21 +193,23 @@
 
 std::pair<WifiStatus, std::vector<ChipId>> Wifi::getChipIdsInternal() {
     std::vector<ChipId> chip_ids;
-    if (chip_.get()) {
-        chip_ids.emplace_back(kChipId);
+
+    for (auto& chip : chips_) {
+        ChipId chip_id = getChipIdFromWifiChip(chip);
+        if (chip_id != UINT32_MAX) chip_ids.emplace_back(chip_id);
     }
     return {createWifiStatus(WifiStatusCode::SUCCESS), std::move(chip_ids)};
 }
 
 std::pair<WifiStatus, sp<V1_4::IWifiChip>> Wifi::getChipInternal(
     ChipId chip_id) {
-    if (!chip_.get()) {
-        return {createWifiStatus(WifiStatusCode::ERROR_NOT_STARTED), nullptr};
+    for (auto& chip : chips_) {
+        ChipId cand_id = getChipIdFromWifiChip(chip);
+        if ((cand_id != UINT32_MAX) && (cand_id == chip_id))
+            return {createWifiStatus(WifiStatusCode::SUCCESS), chip};
     }
-    if (chip_id != kChipId) {
-        return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
-    }
-    return {createWifiStatus(WifiStatusCode::SUCCESS), chip_};
+
+    return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
 }
 
 WifiStatus Wifi::initializeModeControllerAndLegacyHal() {
@@ -203,23 +217,46 @@
         LOG(ERROR) << "Failed to initialize firmware mode controller";
         return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
     }
-    legacy_hal::wifi_error legacy_status = legacy_hal_->initialize();
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to initialize legacy HAL: "
-                   << legacyErrorToString(legacy_status);
-        return createWifiStatusFromLegacyError(legacy_status);
+
+    legacy_hals_ = legacy_hal_factory_->getHals();
+    if (legacy_hals_.empty())
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    int index = 0;  // for failure log
+    for (auto& hal : legacy_hals_) {
+        legacy_hal::wifi_error legacy_status = hal->initialize();
+        if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+            // Currently WifiLegacyHal::initialize does not allocate extra mem,
+            // only initializes the function table. If this changes, need to
+            // implement WifiLegacyHal::deinitialize and deinitalize the
+            // HALs already initialized
+            LOG(ERROR) << "Failed to initialize legacy HAL index: " << index
+                       << " error: " << legacyErrorToString(legacy_status);
+            return createWifiStatusFromLegacyError(legacy_status);
+        }
+        index++;
     }
     return createWifiStatus(WifiStatusCode::SUCCESS);
 }
 
 WifiStatus Wifi::stopLegacyHalAndDeinitializeModeController(
     /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
+    legacy_hal::wifi_error legacy_status = legacy_hal::WIFI_SUCCESS;
+    int index = 0;
+
     run_state_ = RunState::STOPPING;
-    legacy_hal::wifi_error legacy_status =
-        legacy_hal_->stop(lock, [&]() { run_state_ = RunState::STOPPED; });
+    for (auto& hal : legacy_hals_) {
+        legacy_hal::wifi_error tmp = hal->stop(lock, [&]() {});
+        if (tmp != legacy_hal::WIFI_SUCCESS) {
+            LOG(ERROR) << "Failed to stop legacy HAL index: " << index
+                       << " error: " << legacyErrorToString(legacy_status);
+            legacy_status = tmp;
+        }
+        index++;
+    }
+    run_state_ = RunState::STOPPED;
+
     if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to stop legacy HAL: "
-                   << legacyErrorToString(legacy_status);
+        LOG(ERROR) << "One or more legacy HALs failed to stop";
         return createWifiStatusFromLegacyError(legacy_status);
     }
     if (!mode_controller_->deinitialize()) {
@@ -228,6 +265,19 @@
     }
     return createWifiStatus(WifiStatusCode::SUCCESS);
 }
+
+ChipId Wifi::getChipIdFromWifiChip(sp<WifiChip>& chip) {
+    ChipId chip_id = UINT32_MAX;
+    if (chip.get()) {
+        chip->getId([&](WifiStatus status, uint32_t id) {
+            if (status.code == WifiStatusCode::SUCCESS) {
+                chip_id = id;
+            }
+        });
+    }
+
+    return chip_id;
+}
 }  // namespace implementation
 }  // namespace V1_5
 }  // namespace wifi
diff --git a/wifi/1.5/default/wifi.h b/wifi/1.5/default/wifi.h
index 8de0ef4..9f5a1b0 100644
--- a/wifi/1.5/default/wifi.h
+++ b/wifi/1.5/default/wifi.h
@@ -27,6 +27,7 @@
 #include "wifi_chip.h"
 #include "wifi_feature_flags.h"
 #include "wifi_legacy_hal.h"
+#include "wifi_legacy_hal_factory.h"
 #include "wifi_mode_controller.h"
 
 namespace android {
@@ -41,7 +42,8 @@
 class Wifi : public V1_5::IWifi {
    public:
     Wifi(const std::shared_ptr<wifi_system::InterfaceTool> iface_tool,
-         const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+         const std::shared_ptr<legacy_hal::WifiLegacyHalFactory>
+             legacy_hal_factory,
          const std::shared_ptr<mode_controller::WifiModeController>
              mode_controller,
          const std::shared_ptr<iface_util::WifiIfaceUtil> iface_util,
@@ -75,16 +77,18 @@
     WifiStatus initializeModeControllerAndLegacyHal();
     WifiStatus stopLegacyHalAndDeinitializeModeController(
         std::unique_lock<std::recursive_mutex>* lock);
+    ChipId getChipIdFromWifiChip(sp<WifiChip>& chip);
 
     // Instance is created in this root level |IWifi| HIDL interface object
     // and shared with all the child HIDL interface objects.
     std::shared_ptr<wifi_system::InterfaceTool> iface_tool_;
-    std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::shared_ptr<legacy_hal::WifiLegacyHalFactory> legacy_hal_factory_;
     std::shared_ptr<mode_controller::WifiModeController> mode_controller_;
+    std::vector<std::shared_ptr<legacy_hal::WifiLegacyHal>> legacy_hals_;
     std::shared_ptr<iface_util::WifiIfaceUtil> iface_util_;
     std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
     RunState run_state_;
-    sp<WifiChip> chip_;
+    std::vector<sp<WifiChip>> chips_;
     hidl_callback_util::HidlCallbackHandler<IWifiEventCallback>
         event_cb_handler_;
 
diff --git a/wifi/1.5/default/wifi_chip.cpp b/wifi/1.5/default/wifi_chip.cpp
index 069fd65..ecf170a 100644
--- a/wifi/1.5/default/wifi_chip.cpp
+++ b/wifi/1.5/default/wifi_chip.cpp
@@ -281,9 +281,6 @@
             continue;
         }
         std::string cur_file_name(dp->d_name);
-        // string.size() does not include the null terminator. The cpio FreeBSD
-        // file header expects the null character to be included in the length.
-        const size_t file_name_len = cur_file_name.size() + 1;
         struct stat st;
         const std::string cur_file_path = kTombstoneFolderPath + cur_file_name;
         if (stat(cur_file_path.c_str(), &st) == -1) {
@@ -297,8 +294,15 @@
             n_error++;
             continue;
         }
+        std::string file_name_with_last_modified_time =
+            cur_file_name + "-" + std::to_string(st.st_mtime);
+        // string.size() does not include the null terminator. The cpio FreeBSD
+        // file header expects the null character to be included in the length.
+        const size_t file_name_len =
+            file_name_with_last_modified_time.size() + 1;
         unique_fd file_auto_closer(fd_read);
-        if (!cpioWriteHeader(out_fd, st, cur_file_name.c_str(),
+        if (!cpioWriteHeader(out_fd, st,
+                             file_name_with_last_modified_time.c_str(),
                              file_name_len)) {
             return ++n_error;
         }
@@ -332,7 +336,8 @@
 using hidl_return_util::validateAndCallWithLock;
 
 WifiChip::WifiChip(
-    ChipId chip_id, const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+    ChipId chip_id, bool is_primary,
+    const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
     const std::weak_ptr<mode_controller::WifiModeController> mode_controller,
     const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util,
     const std::weak_ptr<feature_flags::WifiFeatureFlags> feature_flags,
@@ -343,7 +348,7 @@
       iface_util_(iface_util),
       is_valid_(true),
       current_mode_id_(feature_flags::chip_mode_ids::kInvalid),
-      modes_(feature_flags.lock()->getChipModes()),
+      modes_(feature_flags.lock()->getChipModes(is_primary)),
       debug_ring_buffer_cb_registered_(false),
       subsystemCallbackHandler_(handler) {
     setActiveWlanIfaceNameProperty(kNoActiveWlanIfaceNamePropertyValue);
@@ -681,9 +686,10 @@
 
 void WifiChip::invalidateAndRemoveDependencies(
     const std::string& removed_iface_name) {
-    for (const auto& nan_iface : nan_ifaces_) {
+    for (auto it = nan_ifaces_.begin(); it != nan_ifaces_.end();) {
+        auto nan_iface = *it;
         if (nan_iface->getName() == removed_iface_name) {
-            invalidateAndClear(nan_ifaces_, nan_iface);
+            nan_iface->invalidate();
             for (const auto& callback : event_cb_handler_.getCallbacks()) {
                 if (!callback
                          ->onIfaceRemoved(IfaceType::NAN, removed_iface_name)
@@ -691,11 +697,19 @@
                     LOG(ERROR) << "Failed to invoke onIfaceRemoved callback";
                 }
             }
+            it = nan_ifaces_.erase(it);
+        } else {
+            ++it;
         }
     }
-    for (const auto& rtt : rtt_controllers_) {
+
+    for (auto it = rtt_controllers_.begin(); it != rtt_controllers_.end();) {
+        auto rtt = *it;
         if (rtt->getIfaceName() == removed_iface_name) {
-            invalidateAndClear(rtt_controllers_, rtt);
+            rtt->invalidate();
+            it = rtt_controllers_.erase(it);
+        } else {
+            ++it;
         }
     }
 }
@@ -1590,15 +1604,16 @@
     // This could happen if the chip call is made before any STA/AP
     // iface is created. Default to wlan0 for such cases.
     LOG(WARNING) << "No active wlan interfaces in use! Using default";
-    return getWlanIfaceName(0);
+    return getWlanIfaceNameWithType(IfaceType::STA, 0);
 }
 
 // Return the first wlan (wlan0, wlan1 etc.) starting from |start_idx|
 // not already in use.
 // Note: This doesn't check the actual presence of these interfaces.
-std::string WifiChip::allocateApOrStaIfaceName(uint32_t start_idx) {
+std::string WifiChip::allocateApOrStaIfaceName(IfaceType type,
+                                               uint32_t start_idx) {
     for (unsigned idx = start_idx; idx < kMaxWlanIfaces; idx++) {
-        const auto ifname = getWlanIfaceName(idx);
+        const auto ifname = getWlanIfaceNameWithType(type, idx);
         if (findUsingName(ap_ifaces_, ifname)) continue;
         if (findUsingName(sta_ifaces_, ifname)) continue;
         return ifname;
@@ -1616,7 +1631,8 @@
     if (!ifname.empty()) {
         return ifname;
     }
-    return allocateApOrStaIfaceName((isStaApConcurrencyAllowedInCurrentMode() &&
+    return allocateApOrStaIfaceName(IfaceType::AP,
+                                    (isStaApConcurrencyAllowedInCurrentMode() &&
                                      !isDualApAllowedInCurrentMode())
                                         ? 1
                                         : 0);
@@ -1625,7 +1641,7 @@
 // STA iface names start with idx 0.
 // Primary STA iface will always be 0.
 std::string WifiChip::allocateStaIfaceName() {
-    return allocateApOrStaIfaceName(0);
+    return allocateApOrStaIfaceName(IfaceType::STA, 0);
 }
 
 bool WifiChip::writeRingbufferFilesInternal() {
@@ -1661,6 +1677,17 @@
     return true;
 }
 
+std::string WifiChip::getWlanIfaceNameWithType(IfaceType type, unsigned idx) {
+    std::string ifname;
+
+    // let the legacy hal override the interface name
+    legacy_hal::wifi_error err =
+        legacy_hal_.lock()->getSupportedIfaceName((uint32_t)type, ifname);
+    if (err == legacy_hal::WIFI_SUCCESS) return ifname;
+
+    return getWlanIfaceName(idx);
+}
+
 }  // namespace implementation
 }  // namespace V1_5
 }  // namespace wifi
diff --git a/wifi/1.5/default/wifi_chip.h b/wifi/1.5/default/wifi_chip.h
index 36c191c..5f1d9e8 100644
--- a/wifi/1.5/default/wifi_chip.h
+++ b/wifi/1.5/default/wifi_chip.h
@@ -50,7 +50,7 @@
  */
 class WifiChip : public V1_4::IWifiChip {
    public:
-    WifiChip(ChipId chip_id,
+    WifiChip(ChipId chip_id, bool is_primary,
              const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
              const std::weak_ptr<mode_controller::WifiModeController>
                  mode_controller,
@@ -256,10 +256,11 @@
     bool isStaApConcurrencyAllowedInCurrentMode();
     bool isDualApAllowedInCurrentMode();
     std::string getFirstActiveWlanIfaceName();
-    std::string allocateApOrStaIfaceName(uint32_t start_idx);
+    std::string allocateApOrStaIfaceName(IfaceType type, uint32_t start_idx);
     std::string allocateApIfaceName();
     std::string allocateStaIfaceName();
     bool writeRingbufferFilesInternal();
+    std::string getWlanIfaceNameWithType(IfaceType type, unsigned idx);
 
     ChipId chip_id_;
     std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
diff --git a/wifi/1.5/default/wifi_feature_flags.cpp b/wifi/1.5/default/wifi_feature_flags.cpp
index 151d473..9f91bd7 100644
--- a/wifi/1.5/default/wifi_feature_flags.cpp
+++ b/wifi/1.5/default/wifi_feature_flags.cpp
@@ -139,6 +139,13 @@
      ChipIfaceCombination::make_vec({WIFI_HAL_INTERFACE_COMBINATIONS_AP})},
 #endif
 };
+
+static const std::vector<IWifiChip::ChipMode> kChipModesSecondary{
+#ifdef WIFI_HAL_INTERFACE_COMBINATIONS_SECONDARY_CHIP
+    {chip_mode_ids::kV3, ChipIfaceCombination::make_vec(
+                             {WIFI_HAL_INTERFACE_COMBINATIONS_SECONDARY_CHIP})},
+#endif
+};
 #undef STA
 #undef AP
 #undef P2P
@@ -154,8 +161,9 @@
 
 WifiFeatureFlags::WifiFeatureFlags() {}
 
-std::vector<IWifiChip::ChipMode> WifiFeatureFlags::getChipModes() {
-    return kChipModes;
+std::vector<IWifiChip::ChipMode> WifiFeatureFlags::getChipModes(
+    bool is_primary) {
+    return (is_primary) ? kChipModes : kChipModesSecondary;
 }
 
 }  // namespace feature_flags
diff --git a/wifi/1.5/default/wifi_feature_flags.h b/wifi/1.5/default/wifi_feature_flags.h
index 73d18ec..cb68b8c 100644
--- a/wifi/1.5/default/wifi_feature_flags.h
+++ b/wifi/1.5/default/wifi_feature_flags.h
@@ -42,7 +42,8 @@
     WifiFeatureFlags();
     virtual ~WifiFeatureFlags() = default;
 
-    virtual std::vector<V1_0::IWifiChip::ChipMode> getChipModes();
+    virtual std::vector<V1_0::IWifiChip::ChipMode> getChipModes(
+        bool is_primary);
 };
 
 }  // namespace feature_flags
diff --git a/wifi/1.5/default/wifi_legacy_hal.cpp b/wifi/1.5/default/wifi_legacy_hal.cpp
index 4070568..7d14e9d 100644
--- a/wifi/1.5/default/wifi_legacy_hal.cpp
+++ b/wifi/1.5/default/wifi_legacy_hal.cpp
@@ -36,7 +36,8 @@
 static constexpr uint32_t kLinkLayerStatsDataMpduSizeThreshold = 128;
 static constexpr uint32_t kMaxWakeReasonStatsArraySize = 32;
 static constexpr uint32_t kMaxRingBuffers = 10;
-static constexpr uint32_t kMaxStopCompleteWaitMs = 100;
+// need a long timeout (1000ms) for chips that unload their driver.
+static constexpr uint32_t kMaxStopCompleteWaitMs = 1000;
 static constexpr char kDriverPropName[] = "wlan.driver.status";
 
 // Helper function to create a non-const char* for legacy Hal API's.
@@ -54,6 +55,7 @@
 namespace V1_5 {
 namespace implementation {
 namespace legacy_hal {
+
 // Legacy HAL functions accept "C" style function pointers, so use global
 // functions to pass to the legacy HAL function and store the corresponding
 // std::function methods to be invoked.
@@ -344,26 +346,20 @@
 // End of the free-standing "C" style callbacks.
 
 WifiLegacyHal::WifiLegacyHal(
-    const std::weak_ptr<wifi_system::InterfaceTool> iface_tool)
-    : global_handle_(nullptr),
+    const std::weak_ptr<wifi_system::InterfaceTool> iface_tool,
+    const wifi_hal_fn& fn, bool is_primary)
+    : global_func_table_(fn),
+      global_handle_(nullptr),
       awaiting_event_loop_termination_(false),
       is_started_(false),
-      iface_tool_(iface_tool) {}
+      iface_tool_(iface_tool),
+      is_primary_(is_primary) {}
 
 wifi_error WifiLegacyHal::initialize() {
     LOG(DEBUG) << "Initialize legacy HAL";
-    // TODO: Add back the HAL Tool if we need to. All we need from the HAL tool
-    // for now is this function call which we can directly call.
-    if (!initHalFuncTableWithStubs(&global_func_table_)) {
-        LOG(ERROR)
-            << "Failed to initialize legacy hal function table with stubs";
-        return WIFI_ERROR_UNKNOWN;
-    }
-    wifi_error status = init_wifi_vendor_hal_func_table(&global_func_table_);
-    if (status != WIFI_SUCCESS) {
-        LOG(ERROR) << "Failed to initialize legacy hal function table";
-    }
-    return status;
+    // this now does nothing, since HAL function table is provided
+    // to the constructor
+    return WIFI_SUCCESS;
 }
 
 wifi_error WifiLegacyHal::start() {
@@ -376,17 +372,21 @@
     }
     LOG(DEBUG) << "Waiting for the driver ready";
     wifi_error status = global_func_table_.wifi_wait_for_driver_ready();
-    if (status == WIFI_ERROR_TIMED_OUT) {
-        LOG(ERROR) << "Timed out awaiting driver ready";
+    if (status == WIFI_ERROR_TIMED_OUT || status == WIFI_ERROR_UNKNOWN) {
+        LOG(ERROR) << "Failed or timed out awaiting driver ready";
         return status;
     }
-    property_set(kDriverPropName, "ok");
+
+    if (is_primary_) {
+        property_set(kDriverPropName, "ok");
+
+        if (!iface_tool_.lock()->SetWifiUpState(true)) {
+            LOG(ERROR) << "Failed to set WiFi interface up";
+            return WIFI_ERROR_UNKNOWN;
+        }
+    }
 
     LOG(DEBUG) << "Starting legacy HAL";
-    if (!iface_tool_.lock()->SetWifiUpState(true)) {
-        LOG(ERROR) << "Failed to set WiFi interface up";
-        return WIFI_ERROR_UNKNOWN;
-    }
     status = global_func_table_.wifi_initialize(&global_handle_);
     if (status != WIFI_SUCCESS || !global_handle_) {
         LOG(ERROR) << "Failed to retrieve global handle";
@@ -419,7 +419,7 @@
         // Invalidate all the internal pointers now that the HAL is
         // stopped.
         invalidate();
-        iface_tool_.lock()->SetWifiUpState(false);
+        if (is_primary_) iface_tool_.lock()->SetWifiUpState(false);
         on_stop_complete_user_callback();
         is_started_ = false;
     };
@@ -488,12 +488,21 @@
 
 std::pair<wifi_error, uint32_t> WifiLegacyHal::getSupportedFeatureSet(
     const std::string& iface_name) {
-    feature_set set;
+    feature_set set = 0, chip_set = 0;
+    wifi_error status = WIFI_SUCCESS;
+
     static_assert(sizeof(set) == sizeof(uint64_t),
                   "Some feature_flags can not be represented in output");
-    wifi_error status = global_func_table_.wifi_get_supported_feature_set(
-        getIfaceHandle(iface_name), &set);
-    return {status, static_cast<uint32_t>(set)};
+    wifi_interface_handle iface_handle = getIfaceHandle(iface_name);
+
+    global_func_table_.wifi_get_chip_feature_set(
+        global_handle_, &chip_set); /* ignore error, chip_set will stay 0 */
+
+    if (iface_handle) {
+        status = global_func_table_.wifi_get_supported_feature_set(iface_handle,
+                                                                   &set);
+    }
+    return {status, static_cast<uint32_t>(set | chip_set)};
 }
 
 std::pair<wifi_error, PacketFilterCapabilities>
@@ -845,10 +854,15 @@
 
 std::pair<wifi_error, uint32_t> WifiLegacyHal::getLoggerSupportedFeatureSet(
     const std::string& iface_name) {
-    uint32_t supported_feature_flags;
-    wifi_error status =
-        global_func_table_.wifi_get_logger_supported_feature_set(
-            getIfaceHandle(iface_name), &supported_feature_flags);
+    uint32_t supported_feature_flags = 0;
+    wifi_error status = WIFI_SUCCESS;
+
+    wifi_interface_handle iface_handle = getIfaceHandle(iface_name);
+
+    if (iface_handle) {
+        status = global_func_table_.wifi_get_logger_supported_feature_set(
+            iface_handle, &supported_feature_flags);
+    }
     return {status, supported_feature_flags};
 }
 
@@ -1485,6 +1499,17 @@
     return status;
 }
 
+wifi_error WifiLegacyHal::getSupportedIfaceName(uint32_t iface_type,
+                                                std::string& ifname) {
+    std::array<char, IFNAMSIZ> buffer;
+
+    wifi_error res = global_func_table_.wifi_get_supported_iface_name(
+        global_handle_, (uint32_t)iface_type, buffer.data(), buffer.size());
+    if (res == WIFI_SUCCESS) ifname = buffer.data();
+
+    return res;
+}
+
 void WifiLegacyHal::invalidate() {
     global_handle_ = nullptr;
     iface_name_to_handle_.clear();
diff --git a/wifi/1.5/default/wifi_legacy_hal.h b/wifi/1.5/default/wifi_legacy_hal.h
index ae520a8..2984a00 100644
--- a/wifi/1.5/default/wifi_legacy_hal.h
+++ b/wifi/1.5/default/wifi_legacy_hal.h
@@ -173,7 +173,8 @@
  */
 class WifiLegacyHal {
    public:
-    WifiLegacyHal(const std::weak_ptr<wifi_system::InterfaceTool> iface_tool);
+    WifiLegacyHal(const std::weak_ptr<wifi_system::InterfaceTool> iface_tool,
+                  const wifi_hal_fn& fn, bool is_primary);
     virtual ~WifiLegacyHal() = default;
 
     // Initialize the legacy HAL function table.
@@ -379,6 +380,7 @@
     virtual wifi_error createVirtualInterface(const std::string& ifname,
                                               wifi_interface_type iftype);
     virtual wifi_error deleteVirtualInterface(const std::string& ifname);
+    wifi_error getSupportedIfaceName(uint32_t iface_type, std::string& ifname);
 
    private:
     // Retrieve interface handles for all the available interfaces.
@@ -408,6 +410,11 @@
     // Flag to indicate if the legacy HAL has been started.
     bool is_started_;
     std::weak_ptr<wifi_system::InterfaceTool> iface_tool_;
+    // flag to indicate if this HAL is for the primary chip. This is used
+    // in order to avoid some hard-coded behavior used with older HALs,
+    // such as bring wlan0 interface up/down on start/stop HAL.
+    // it may be removed once vendor HALs are updated.
+    bool is_primary_;
 };
 
 }  // namespace legacy_hal
diff --git a/wifi/1.5/default/wifi_legacy_hal_factory.cpp b/wifi/1.5/default/wifi_legacy_hal_factory.cpp
new file mode 100644
index 0000000..fbaa284
--- /dev/null
+++ b/wifi/1.5/default/wifi_legacy_hal_factory.cpp
@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <dirent.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <android-base/logging.h>
+#include <dlfcn.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xmlmemory.h>
+
+#include "wifi_legacy_hal_factory.h"
+#include "wifi_legacy_hal_stubs.h"
+
+namespace {
+static constexpr char kVendorHalsDescPath[] = "/vendor/etc/wifi/vendor_hals";
+static constexpr char kVendorHalsDescExt[] = ".xml";
+static constexpr uint32_t kVendorHalsDescVersion = 1;
+
+bool isDirectory(struct dirent* entryPtr) {
+    bool isDir = false;
+    if (entryPtr->d_type != DT_UNKNOWN && entryPtr->d_type != DT_LNK) {
+        isDir = (entryPtr->d_type == DT_DIR);
+    } else {
+        struct stat entryStat;
+        stat(entryPtr->d_name, &entryStat);
+        isDir = S_ISDIR(entryStat.st_mode);
+    }
+    return isDir;
+}
+
+bool isFileExtension(const char* name, const char* ext) {
+    if (name == NULL) return false;
+    if (ext == NULL) return false;
+
+    size_t extLen = strlen(ext);
+    size_t nameLen = strlen(name);
+
+    if (extLen > nameLen) return false;
+
+    if (strncmp(name + nameLen - extLen, ext, extLen) != 0) return false;
+
+    return true;
+}
+};  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_5 {
+namespace implementation {
+namespace legacy_hal {
+
+WifiLegacyHalFactory::WifiLegacyHalFactory(
+    const std::weak_ptr<wifi_system::InterfaceTool> iface_tool)
+    : iface_tool_(iface_tool) {}
+
+std::vector<std::shared_ptr<WifiLegacyHal>> WifiLegacyHalFactory::getHals() {
+    if (legacy_hals_.empty()) {
+        if (!initVendorHalDescriptorFromLinked())
+            initVendorHalsDescriptorList();
+        for (auto& desc : descs_) {
+            std::shared_ptr<WifiLegacyHal> hal =
+                std::make_shared<WifiLegacyHal>(iface_tool_, desc.fn,
+                                                desc.primary);
+            legacy_hals_.push_back(hal);
+        }
+    }
+
+    return legacy_hals_;
+}
+
+bool WifiLegacyHalFactory::initVendorHalDescriptorFromLinked() {
+    wifi_hal_lib_desc desc;
+
+    if (!initLinkedHalFunctionTable(&desc.fn)) return false;
+
+    desc.primary = true;
+    desc.handle = NULL;
+    descs_.push_back(desc);
+    return true;
+}
+
+bool WifiLegacyHalFactory::initLinkedHalFunctionTable(wifi_hal_fn* hal_fn) {
+    init_wifi_vendor_hal_func_table_t initfn;
+
+    initfn = (init_wifi_vendor_hal_func_table_t)dlsym(
+        RTLD_DEFAULT, "init_wifi_vendor_hal_func_table");
+    if (!initfn) {
+        LOG(INFO) << "no vendor HAL library linked, will try dynamic load";
+        return false;
+    }
+
+    if (!initHalFuncTableWithStubs(hal_fn)) {
+        LOG(ERROR) << "Can not initialize the basic function pointer table";
+        return false;
+    }
+
+    if (initfn(hal_fn) != WIFI_SUCCESS) {
+        LOG(ERROR) << "Can not initialize the vendor function pointer table";
+        return false;
+    }
+
+    return true;
+}
+
+/*
+ * Overall structure of the HAL descriptor XML schema
+ *
+ * <?xml version="1.0" encoding="UTF-8"?>
+ * <WifiVendorHal version="1">
+ * <path>/vendor/lib64/libwifi-hal-qcom.so</path>
+ * <primary>1</primary>
+ * </WifiVendorHal>
+ */
+void WifiLegacyHalFactory::initVendorHalsDescriptorList() {
+    xmlDocPtr xml;
+    xmlNodePtr node, cnode;
+    char* version;
+    std::string path;
+    xmlChar* value;
+    wifi_hal_lib_desc desc;
+
+    LOG(INFO) << "processing vendor HALs descriptions in "
+              << kVendorHalsDescPath;
+    DIR* dirPtr = ::opendir(kVendorHalsDescPath);
+    if (dirPtr == NULL) {
+        LOG(ERROR) << "failed to open " << kVendorHalsDescPath;
+        return;
+    }
+    for (struct dirent* entryPtr = ::readdir(dirPtr); entryPtr != NULL;
+         entryPtr = ::readdir(dirPtr)) {
+        if (isDirectory(entryPtr)) continue;
+
+        if (!isFileExtension(entryPtr->d_name, kVendorHalsDescExt))
+            continue;  // only process .xml files
+
+        LOG(INFO) << "processing config file: " << entryPtr->d_name;
+
+        std::string fullPath(kVendorHalsDescPath);
+        fullPath.append("/");
+        fullPath.append(entryPtr->d_name);
+        xml = xmlReadFile(fullPath.c_str(), "UTF-8", XML_PARSE_RECOVER);
+        if (!xml) {
+            LOG(ERROR) << "failed to parse: " << entryPtr->d_name
+                       << " skipping...";
+            continue;
+        }
+        node = xmlDocGetRootElement(xml);
+        if (!node) {
+            LOG(ERROR) << "empty config file: " << entryPtr->d_name
+                       << " skipping...";
+            goto skip;
+        }
+        if (xmlStrcmp(node->name, BAD_CAST "WifiVendorHal")) {
+            LOG(ERROR) << "bad config, root element not WifiVendorHal: "
+                       << entryPtr->d_name << " skipping...";
+            goto skip;
+        }
+        version = (char*)xmlGetProp(node, BAD_CAST "version");
+        if (!version || strtoul(version, NULL, 0) != kVendorHalsDescVersion) {
+            LOG(ERROR) << "conf file: " << entryPtr->d_name
+                       << "must have version: " << kVendorHalsDescVersion
+                       << ", skipping...";
+            goto skip;
+        }
+        cnode = node->children;
+        path.clear();
+        desc.primary = false;
+        while (cnode) {
+            if (!xmlStrcmp(cnode->name, BAD_CAST "path")) {
+                value = xmlNodeListGetString(xml, cnode->children, 1);
+                if (value) path = (char*)value;
+                xmlFree(value);
+            } else if (!xmlStrcmp(cnode->name, BAD_CAST "primary")) {
+                value = xmlNodeListGetString(xml, cnode->children, 1);
+                desc.primary = !xmlStrcmp(value, BAD_CAST "1");
+                xmlFree(value);
+            }
+            cnode = cnode->next;
+        }
+        if (path.empty()) {
+            LOG(ERROR) << "hal library path not provided in: "
+                       << entryPtr->d_name << ", skipping...";
+            goto skip;
+        }
+        if (loadVendorHalLib(path, desc)) {
+            if (desc.primary)
+                descs_.insert(descs_.begin(), desc);
+            else
+                descs_.push_back(desc);
+        }
+    skip:
+        xmlFreeDoc(xml);
+    }
+    ::closedir(dirPtr);
+}
+
+bool WifiLegacyHalFactory::loadVendorHalLib(const std::string& path,
+                                            wifi_hal_lib_desc& desc) {
+    void* h = dlopen(path.c_str(), RTLD_NOW | RTLD_LOCAL);
+    init_wifi_vendor_hal_func_table_t initfn;
+    wifi_error res;
+
+    if (!h) {
+        LOG(ERROR) << "failed to open vendor hal library: " << path;
+        return false;
+    }
+    initfn = (init_wifi_vendor_hal_func_table_t)dlsym(
+        h, "init_wifi_vendor_hal_func_table");
+    if (!initfn) {
+        LOG(ERROR) << "init_wifi_vendor_hal_func_table not found in: " << path;
+        goto out_err;
+    }
+
+    if (!initHalFuncTableWithStubs(&desc.fn)) {
+        LOG(ERROR) << "Can not initialize the basic function pointer table";
+        goto out_err;
+    }
+    res = initfn(&desc.fn);
+    if (res != WIFI_SUCCESS) {
+        LOG(ERROR) << "failed to initialize the vendor func table in: " << path
+                   << " error: " << res;
+        goto out_err;
+    }
+
+    res = desc.fn.wifi_early_initialize();
+    // vendor HALs which do not implement early_initialize will return
+    // WIFI_ERROR_NOT_SUPPORTED, treat this as success.
+    if (res != WIFI_SUCCESS && res != WIFI_ERROR_NOT_SUPPORTED) {
+        LOG(ERROR) << "early initialization failed in: " << path
+                   << " error: " << res;
+        goto out_err;
+    }
+
+    desc.handle = h;
+    return true;
+out_err:
+    dlclose(h);
+    return false;
+}
+
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_5
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
diff --git a/wifi/1.5/default/wifi_legacy_hal_factory.h b/wifi/1.5/default/wifi_legacy_hal_factory.h
new file mode 100644
index 0000000..e3440fa
--- /dev/null
+++ b/wifi/1.5/default/wifi_legacy_hal_factory.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WIFI_LEGACY_HAL_FACTORY_H_
+#define WIFI_LEGACY_HAL_FACTORY_H_
+
+#include <wifi_system/interface_tool.h>
+
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_5 {
+namespace implementation {
+// This is in a separate namespace to prevent typename conflicts between
+// the legacy HAL types and the HIDL interface types.
+namespace legacy_hal {
+/**
+ * Class that creates WifiLegacyHal objects for vendor HALs in the system.
+ */
+class WifiLegacyHalFactory {
+   public:
+    WifiLegacyHalFactory(
+        const std::weak_ptr<wifi_system::InterfaceTool> iface_tool);
+    virtual ~WifiLegacyHalFactory() = default;
+
+    std::vector<std::shared_ptr<WifiLegacyHal>> getHals();
+
+   private:
+    typedef struct {
+        wifi_hal_fn fn;
+        bool primary;
+        void* handle;
+    } wifi_hal_lib_desc;
+
+    bool initVendorHalDescriptorFromLinked();
+    void initVendorHalsDescriptorList();
+    bool initLinkedHalFunctionTable(wifi_hal_fn* hal_fn);
+    bool loadVendorHalLib(const std::string& path, wifi_hal_lib_desc& desc);
+
+    std::weak_ptr<wifi_system::InterfaceTool> iface_tool_;
+    std::vector<wifi_hal_lib_desc> descs_;
+    std::vector<std::shared_ptr<WifiLegacyHal>> legacy_hals_;
+};
+
+}  // namespace legacy_hal
+}  // namespace implementation
+}  // namespace V1_5
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_LEGACY_HAL_FACTORY_H_
diff --git a/wifi/1.5/default/wifi_legacy_hal_stubs.cpp b/wifi/1.5/default/wifi_legacy_hal_stubs.cpp
index 73b5856..a1122e9 100644
--- a/wifi/1.5/default/wifi_legacy_hal_stubs.cpp
+++ b/wifi/1.5/default/wifi_legacy_hal_stubs.cpp
@@ -144,6 +144,10 @@
     populateStubFor(&hal_fn->wifi_map_dscp_access_category);
     populateStubFor(&hal_fn->wifi_reset_dscp_mapping);
     populateStubFor(&hal_fn->wifi_set_subsystem_restart_handler);
+    populateStubFor(&hal_fn->wifi_get_supported_iface_name);
+    populateStubFor(&hal_fn->wifi_early_initialize);
+    populateStubFor(&hal_fn->wifi_get_chip_feature_set);
+
     return true;
 }
 }  // namespace legacy_hal
diff --git a/wifi/hostapd/1.1/vts/functional/Android.bp b/wifi/hostapd/1.1/vts/functional/Android.bp
index 291eceb..61a8dfd 100644
--- a/wifi/hostapd/1.1/vts/functional/Android.bp
+++ b/wifi/hostapd/1.1/vts/functional/Android.bp
@@ -25,11 +25,15 @@
         "VtsHalWifiHostapdV1_0TargetTestUtil",
         "android.hardware.wifi.hostapd@1.0",
         "android.hardware.wifi.hostapd@1.1",
+        "android.hardware.wifi.hostapd@1.2",
+        "android.hardware.wifi.hostapd@1.3",
         "android.hardware.wifi@1.0",
         "libgmock",
         "libwifi-system",
         "libwifi-system-iface",
     ],
-    test_suites: ["general-tests", "vts"],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
 }
-
diff --git a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
index 345cf31..0162a99 100644
--- a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
+++ b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
@@ -23,6 +23,7 @@
 
 #include <android/hardware/wifi/1.0/IWifi.h>
 #include <android/hardware/wifi/hostapd/1.1/IHostapd.h>
+#include <android/hardware/wifi/hostapd/1.3/IHostapd.h>
 
 #include "hostapd_hidl_call_util.h"
 #include "hostapd_hidl_test_utils.h"
@@ -43,6 +44,7 @@
 constexpr char kNwPassphrase[] = "test12345";
 constexpr int kIfaceChannel = 6;
 constexpr int kIfaceInvalidChannel = 567;
+
 }  // namespace
 
 class HostapdHidlTest
@@ -170,10 +172,17 @@
     }
 };
 
+bool is_1_3(const sp<IHostapd>& hostapd) {
+    sp<::android::hardware::wifi::hostapd::V1_3::IHostapd> hostapd_1_3 =
+        ::android::hardware::wifi::hostapd::V1_3::IHostapd::castFrom(hostapd);
+    return hostapd_1_3.get() != nullptr;
+}
+
 /*
  * RegisterCallback
  */
 TEST_P(HostapdHidlTest, registerCallback) {
+    if (is_1_3(hostapd_)) GTEST_SKIP() << "Ignore since current HIDL over 1.3";
     hostapd_->registerCallback(
         new IfaceCallback(), [](const HostapdStatus& status) {
             EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
diff --git a/wifi/hostapd/1.3/Android.bp b/wifi/hostapd/1.3/Android.bp
new file mode 100644
index 0000000..aef3267
--- /dev/null
+++ b/wifi/hostapd/1.3/Android.bp
@@ -0,0 +1,22 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.wifi.hostapd@1.3",
+    root: "android.hardware",
+    srcs: [
+        "types.hal",
+        "IHostapd.hal",
+        "IHostapdCallback.hal",
+    ],
+    interfaces: [
+        "android.hardware.wifi.hostapd@1.0",
+        "android.hardware.wifi.hostapd@1.1",
+        "android.hardware.wifi.hostapd@1.2",
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+    apex_available: [
+        "com.android.wifi",
+    ],
+}
diff --git a/wifi/hostapd/1.3/IHostapd.hal b/wifi/hostapd/1.3/IHostapd.hal
new file mode 100644
index 0000000..7ac20e4
--- /dev/null
+++ b/wifi/hostapd/1.3/IHostapd.hal
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.hostapd@1.3;
+
+import @1.2::IHostapd;
+import @1.2::HostapdStatus;
+
+import IHostapdCallback;
+/**
+ * Top-level object for managing SoftAPs.
+ */
+interface IHostapd extends @1.2::IHostapd {
+    /**
+     * Register for callbacks from the hostapd service.
+     *
+     * These callbacks are invoked for global events that are not specific
+     * to any interface or network. Registration of multiple callback
+     * objects is supported. These objects must be deleted when the corresponding
+     * client process is dead.
+     *
+     * @param callback An instance of the |IHostapdCallback| HIDL interface
+     *     object.
+     * @return status Status of the operation.
+     *     Possible status codes:
+     *     |HostapdStatusCode.SUCCESS|,
+     *     |HostapdStatusCode.FAILURE_UNKNOWN|
+     */
+    registerCallback_1_3(IHostapdCallback callback)
+        generates (HostapdStatus status);
+};
diff --git a/wifi/hostapd/1.3/IHostapdCallback.hal b/wifi/hostapd/1.3/IHostapdCallback.hal
new file mode 100644
index 0000000..5202178
--- /dev/null
+++ b/wifi/hostapd/1.3/IHostapdCallback.hal
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.hostapd@1.3;
+
+import @1.1::IHostapdCallback;
+import Generation;
+
+/**
+ * Top-level callback object for managing SoftAPs.
+ */
+interface IHostapdCallback extends @1.1::IHostapdCallback {
+    oneway onInterfaceInfoChanged(string ifaceName, Generation generation);
+};
diff --git a/wifi/hostapd/1.3/types.hal b/wifi/hostapd/1.3/types.hal
new file mode 100644
index 0000000..ce092c0
--- /dev/null
+++ b/wifi/hostapd/1.3/types.hal
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.hostapd@1.3;
+
+/**
+ * The wifi generation which AP reside on.
+ * It depends on hw mode and HT/VHT capabilities in hostapd.
+ *
+ * WIFI_STANDARD_LEGACY = (hw_mode is HOSTAPD_MODE_IEEE80211B) or
+ *                        (hw_mode is HOSTAPD_MODE_IEEE80211G and HT is 0).
+ * WIFI_STANDARD_11N = [hw_mode is HOSTAPD_MODE_IEEE80211G and (HT is 1 or HT40 is 1)] or
+ *                     [hw_mode is HOSTAPD_MODE_IEEE80211A and VHT is 0].
+ * WIFI_STANDARD_11AC = hw_mode is HOSTAPD_MODE_IEEE80211A and VHT is 1.
+ * WIFI_STANDARD_11AX = hw_mode is HOSTAPD_MODE_IEEE80211AX.
+ */
+enum Generation : uint32_t {
+    WIFI_STANDARD_UNKNOWN = -1,
+    WIFI_STANDARD_LEGACY = 0,
+    WIFI_STANDARD_11N = 1,
+    WIFI_STANDARD_11AC = 2,
+    WIFI_STANDARD_11AX = 3,
+};
+
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp
index 4f25465..47f0394 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp
@@ -40,16 +40,22 @@
     virtual void SetUp() override {
         wifi_instance_name_ = std::get<0>(GetParam());
         supplicant_instance_name_ = std::get<1>(GetParam());
+        isP2pOn_ =
+            testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
         stopSupplicant(wifi_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_instance_name_,
                                              supplicant_instance_name_);
-        isP2pOn_ =
-            testing::deviceSupportsFeature("android.hardware.wifi.direct");
         supplicant_ = getSupplicant(supplicant_instance_name_, isP2pOn_);
         ASSERT_NE(supplicant_.get(), nullptr);
     }
 
-    virtual void TearDown() override { stopSupplicant(wifi_instance_name_); }
+    virtual void TearDown() override {
+        stopSupplicant(wifi_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
+    }
 
    protected:
     // ISupplicant object used for all tests in this fixture.
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp
index 8d6f38d..c333c4f 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp
@@ -77,11 +77,13 @@
     virtual void SetUp() override {
         wifi_instance_name_ = std::get<0>(GetParam());
         supplicant_instance_name_ = std::get<1>(GetParam());
+        isP2pOn_ =
+            testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
         stopSupplicant(wifi_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_instance_name_,
                                              supplicant_instance_name_);
-        isP2pOn_ =
-            testing::deviceSupportsFeature("android.hardware.wifi.direct");
         supplicant_ = getSupplicant(supplicant_instance_name_, isP2pOn_);
         EXPECT_TRUE(turnOnExcessiveLogging(supplicant_));
         p2p_iface_ = getSupplicantP2pIface(supplicant_);
@@ -91,7 +93,11 @@
         memcpy(peer_mac_addr_.data(), kTestPeerMacAddr, peer_mac_addr_.size());
     }
 
-    virtual void TearDown() override { stopSupplicant(wifi_instance_name_); }
+    virtual void TearDown() override {
+        stopSupplicant(wifi_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
+    }
 
    protected:
     bool isP2pOn_ = false;
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 089b3cd..ff28754 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -72,11 +72,13 @@
     virtual void SetUp() override {
         wifi_instance_name_ = std::get<0>(GetParam());
         supplicant_instance_name_ = std::get<1>(GetParam());
+        isP2pOn_ =
+            testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
         stopSupplicant(wifi_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_instance_name_,
                                              supplicant_instance_name_);
-        isP2pOn_ =
-            testing::deviceSupportsFeature("android.hardware.wifi.direct");
         supplicant_ = getSupplicant(supplicant_instance_name_, isP2pOn_);
         EXPECT_TRUE(turnOnExcessiveLogging(supplicant_));
         sta_iface_ = getSupplicantStaIface(supplicant_);
@@ -85,7 +87,11 @@
         memcpy(mac_addr_.data(), kTestMacAddr, mac_addr_.size());
     }
 
-    virtual void TearDown() override { stopSupplicant(wifi_instance_name_); }
+    virtual void TearDown() override {
+        stopSupplicant(wifi_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
+    }
 
    protected:
     bool isP2pOn_ = false;
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_sta_network_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_sta_network_hidl_test.cpp
index 5467e02..295ebfb 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_sta_network_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_sta_network_hidl_test.cpp
@@ -85,11 +85,13 @@
     virtual void SetUp() override {
         wifi_instance_name_ = std::get<0>(GetParam());
         supplicant_instance_name_ = std::get<1>(GetParam());
+        isP2pOn_ =
+            testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
         stopSupplicant(wifi_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_instance_name_,
                                              supplicant_instance_name_);
-        isP2pOn_ =
-            testing::deviceSupportsFeature("android.hardware.wifi.direct");
         supplicant_ = getSupplicant(supplicant_instance_name_, isP2pOn_);
         EXPECT_TRUE(turnOnExcessiveLogging(supplicant_));
         sta_network_ = createSupplicantStaNetwork(supplicant_);
@@ -103,7 +105,11 @@
         ssid_.assign(kTestSsidStr, kTestSsidStr + strlen(kTestSsidStr));
     }
 
-    virtual void TearDown() override { stopSupplicant(wifi_instance_name_); }
+    virtual void TearDown() override {
+        stopSupplicant(wifi_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
+    }
 
    protected:
     void removeNetwork() {
diff --git a/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test_utils_1_1.h b/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test_utils_1_1.h
index 3629882..2104794 100644
--- a/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test_utils_1_1.h
+++ b/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test_utils_1_1.h
@@ -44,6 +44,8 @@
         supplicant_v1_1_instance_name_ = std::get<1>(GetParam());
         isP2pOn_ =
             testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
         stopSupplicant(wifi_v1_0_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_v1_0_instance_name_,
                                              supplicant_v1_1_instance_name_);
@@ -54,6 +56,8 @@
 
     virtual void TearDown() override {
         stopSupplicant(wifi_v1_0_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
     }
 
    protected:
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h b/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h
index 5ecfdd4..2a432d0 100644
--- a/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_hidl_test_utils_1_2.h
@@ -50,6 +50,8 @@
         supplicant_v1_2_instance_name_ = std::get<1>(GetParam());
         isP2pOn_ =
             testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
         stopSupplicant(wifi_v1_0_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_v1_0_instance_name_,
                                              supplicant_v1_2_instance_name_);
@@ -61,6 +63,8 @@
 
     virtual void TearDown() override {
         stopSupplicant(wifi_v1_0_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
     }
 
    protected:
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp
index 1eb8eea..cab160b 100644
--- a/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_p2p_iface_hidl_test.cpp
@@ -43,7 +43,7 @@
     virtual void SetUp() override {
         SupplicantHidlTestBase::SetUp();
         EXPECT_TRUE(turnOnExcessiveLogging(supplicant_));
-        if (!::testing::deviceSupportsFeature("android.hardware.wifi.direct")) {
+        if (!isP2pOn_) {
             GTEST_SKIP() << "Wi-Fi Direct is not supported, skip this test.";
         }
         p2p_iface_ = getSupplicantP2pIface_1_2(supplicant_);
diff --git a/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 12bd122..011a955 100644
--- a/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -63,6 +63,8 @@
         supplicant_v1_3_instance_name_ = std::get<1>(GetParam());
         isP2pOn_ =
             testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
 
         stopSupplicant(wifi_v1_0_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_v1_0_instance_name_,
@@ -76,6 +78,8 @@
 
     virtual void TearDown() override {
         stopSupplicant(wifi_v1_0_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
     }
 
     int64_t pmkCacheExpirationTimeInSec;
diff --git a/wifi/supplicant/1.3/vts/functional/supplicant_sta_network_hidl_test.cpp b/wifi/supplicant/1.3/vts/functional/supplicant_sta_network_hidl_test.cpp
index 25091a5..5f60746 100644
--- a/wifi/supplicant/1.3/vts/functional/supplicant_sta_network_hidl_test.cpp
+++ b/wifi/supplicant/1.3/vts/functional/supplicant_sta_network_hidl_test.cpp
@@ -51,6 +51,8 @@
         supplicant_v1_3_instance_name_ = std::get<1>(GetParam());
         isP2pOn_ =
             testing::deviceSupportsFeature("android.hardware.wifi.direct");
+        // Stop Framework
+        std::system("/system/bin/stop");
 
         stopSupplicant(wifi_v1_0_instance_name_);
         startSupplicantAndWaitForHidlService(wifi_v1_0_instance_name_,
@@ -66,6 +68,8 @@
 
     virtual void TearDown() override {
         stopSupplicant(wifi_v1_0_instance_name_);
+        // Start Framework
+        std::system("/system/bin/start");
     }
 
    protected:
diff --git a/wifi/supplicant/1.4/Android.bp b/wifi/supplicant/1.4/Android.bp
new file mode 100644
index 0000000..ff2a8bc
--- /dev/null
+++ b/wifi/supplicant/1.4/Android.bp
@@ -0,0 +1,21 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.wifi.supplicant@1.4",
+    root: "android.hardware",
+    srcs: [
+        "ISupplicant.hal",
+    ],
+    interfaces: [
+        "android.hardware.wifi.supplicant@1.0",
+        "android.hardware.wifi.supplicant@1.1",
+        "android.hardware.wifi.supplicant@1.2",
+        "android.hardware.wifi.supplicant@1.3",
+        "android.hardware.wifi@1.0",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+    apex_available: [
+        "com.android.wifi",
+    ],
+}
diff --git a/wifi/supplicant/1.4/ISupplicant.hal b/wifi/supplicant/1.4/ISupplicant.hal
new file mode 100644
index 0000000..9cb88ba
--- /dev/null
+++ b/wifi/supplicant/1.4/ISupplicant.hal
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.4;
+
+import @1.3::ISupplicant;
+
+/**
+ * Interface exposed by the supplicant HIDL service registered
+ * with the hardware service manager.
+ * This is the root level object for any the supplicant interactions.
+ * To use 1.4 features you must cast specific interfaces returned from the
+ * 1.1 HAL. For example V1_1::ISupplicant::addIface() adds V1_0::ISupplicantIface,
+ * which can be cast to V1_4::ISupplicantStaIface.
+ */
+interface ISupplicant extends @1.3::ISupplicant {};