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Merge changes from topic "comm_routing"

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* changes:
  Audio: use preferred device for strategy for communication route
  AudioManager: Add communication device management APIs
  AudioService: refactor communication route control
This commit is contained in:
Eric Laurent
2020-12-23 12:34:10 +00:00
committed by Gerrit Code Review
parent 617d14954d d88b1e45b6
commit 8553f77dce
12 changed files with 1150 additions and 561 deletions
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9
core/api/current.txt
View File

@@ -19373,14 +19373,17 @@ package android.media {
public class AudioManager {
method @Deprecated public int abandonAudioFocus(android.media.AudioManager.OnAudioFocusChangeListener);
method public int abandonAudioFocusRequest(@NonNull android.media.AudioFocusRequest);
method public void addOnCommunicationDeviceChangedListener(@NonNull java.util.concurrent.Executor, @NonNull android.media.AudioManager.OnCommunicationDeviceChangedListener);
method public void adjustStreamVolume(int, int, int);
method public void adjustSuggestedStreamVolume(int, int, int);
method public void adjustVolume(int, int);
method public void clearDeviceForCommunication();
method public void dispatchMediaKeyEvent(android.view.KeyEvent);
method public int generateAudioSessionId();
method @NonNull public java.util.List<android.media.AudioPlaybackConfiguration> getActivePlaybackConfigurations();
method @NonNull public java.util.List<android.media.AudioRecordingConfiguration> getActiveRecordingConfigurations();
method public int getAllowedCapturePolicy();
method @Nullable public android.media.AudioDeviceInfo getDeviceForCommunication();
method public android.media.AudioDeviceInfo[] getDevices(int);
method public java.util.List<android.media.MicrophoneInfo> getMicrophones() throws java.io.IOException;
method public int getMode();
@@ -19415,11 +19418,13 @@ package android.media {
method @Deprecated public void registerMediaButtonEventReceiver(android.app.PendingIntent);
method @Deprecated public void registerRemoteControlClient(android.media.RemoteControlClient);
method @Deprecated public boolean registerRemoteController(android.media.RemoteController);
method public void removeOnCommunicationDeviceChangedListener(@NonNull android.media.AudioManager.OnCommunicationDeviceChangedListener);
method @Deprecated public int requestAudioFocus(android.media.AudioManager.OnAudioFocusChangeListener, int, int);
method public int requestAudioFocus(@NonNull android.media.AudioFocusRequest);
method public void setAllowedCapturePolicy(int);
method @Deprecated public void setBluetoothA2dpOn(boolean);
method public void setBluetoothScoOn(boolean);
method public boolean setDeviceForCommunication(@NonNull android.media.AudioDeviceInfo);
method public void setMicrophoneMute(boolean);
method public void setMode(int);
method public void setParameters(String);
@@ -19554,6 +19559,10 @@ package android.media {
method public void onAudioFocusChange(int);
}
public static interface AudioManager.OnCommunicationDeviceChangedListener {
method public void onCommunicationDeviceChanged(@Nullable android.media.AudioDeviceInfo);
}
public final class AudioMetadata {
method @NonNull public static android.media.AudioMetadataMap createMap();
}

1
core/api/test-current.txt
View File

@@ -850,6 +850,7 @@ package android.media {
}
public class AudioManager {
method @Nullable public static android.media.AudioDeviceInfo getDeviceInfoFromType(int);
method public boolean hasRegisteredDynamicPolicy();
}

28
core/jni/android_media_AudioSystem.cpp
View File

@@ -294,20 +294,25 @@ static sp<JNIAudioPortCallback> setJniCallback(JNIEnv* env,
return old;
}
#define check_AudioSystem_Command(status) _check_AudioSystem_Command(__func__, (status))
#define check_AudioSystem_Command(...) _check_AudioSystem_Command(__func__, __VA_ARGS__)
static int _check_AudioSystem_Command(const char* caller, status_t status)
{
ALOGE_IF(status, "Command failed for %s: %d", caller, status);
static int _check_AudioSystem_Command(const char *caller, status_t status,
std::vector<status_t> ignoredErrors = {}) {
int jniStatus = kAudioStatusOk;
switch (status) {
case DEAD_OBJECT:
return kAudioStatusMediaServerDied;
jniStatus = kAudioStatusMediaServerDied;
break;
case NO_ERROR:
return kAudioStatusOk;
break;
default:
if (std::find(begin(ignoredErrors), end(ignoredErrors), status) == end(ignoredErrors)) {
jniStatus = kAudioStatusError;
}
break;
}
return kAudioStatusError;
ALOGE_IF(jniStatus != kAudioStatusOk, "Command failed for %s: %d", caller, status);
return jniStatus;
}
static jint getVectorOfAudioDeviceTypeAddr(JNIEnv *env, jintArray deviceTypes,
@@ -2381,9 +2386,12 @@ static jint android_media_AudioSystem_setDevicesRoleForStrategy(JNIEnv *env, job
static jint android_media_AudioSystem_removeDevicesRoleForStrategy(JNIEnv *env, jobject thiz,
jint strategy, jint role) {
return (jint)check_AudioSystem_Command(
AudioSystem::removeDevicesRoleForStrategy((product_strategy_t)strategy,
(device_role_t)role));
return (jint)
check_AudioSystem_Command(AudioSystem::removeDevicesRoleForStrategy((product_strategy_t)
strategy,
(device_role_t)
role),
{NAME_NOT_FOUND});
}
static jint android_media_AudioSystem_getDevicesForRoleAndStrategy(JNIEnv *env, jobject thiz,

14
media/java/android/media/AudioDeviceAttributes.java
View File

@@ -120,7 +120,13 @@ public final class AudioDeviceAttributes implements Parcelable {
mAddress = address;
}
/*package*/ AudioDeviceAttributes(int nativeType, @NonNull String address) {
/**
* @hide
* Constructor from internal device type and address
* @param type the internal device type, as defined in {@link AudioSystem}
* @param address the address of the device, or an empty string for devices without one
*/
public AudioDeviceAttributes(int nativeType, @NonNull String address) {
mRole = (nativeType & AudioSystem.DEVICE_BIT_IN) != 0 ? ROLE_INPUT : ROLE_OUTPUT;
mType = AudioDeviceInfo.convertInternalDeviceToDeviceType(nativeType);
mAddress = address;
@@ -191,10 +197,8 @@ public final class AudioDeviceAttributes implements Parcelable {
public String toString() {
return new String("AudioDeviceAttributes:"
+ " role:" + roleToString(mRole)
+ " type:" + (mRole == ROLE_OUTPUT ? AudioSystem.getOutputDeviceName(
AudioDeviceInfo.convertDeviceTypeToInternalDevice(mType))
: AudioSystem.getInputDeviceName(
AudioDeviceInfo.convertDeviceTypeToInternalDevice(mType)))
+ " type:" + (mRole == ROLE_OUTPUT ? AudioSystem.getOutputDeviceName(mNativeType)
: AudioSystem.getInputDeviceName(mNativeType))
+ " addr:" + mAddress);
}

314
media/java/android/media/AudioManager.java
View File

@@ -6123,6 +6123,29 @@ public class AudioManager {
return infoListFromPortList(ports, flags);
}
/**
* Returns an {@link AudioDeviceInfo} corresponding to the specified {@link AudioPort} ID.
* @param portId The audio port ID to look up for.
* @param flags A set of bitflags specifying the criteria to test.
* @see #GET_DEVICES_OUTPUTS
* @see #GET_DEVICES_INPUTS
* @see #GET_DEVICES_ALL
* @return An AudioDeviceInfo or null if no device with matching port ID is found.
* @hide
*/
public static AudioDeviceInfo getDeviceForPortId(int portId, int flags) {
if (portId == 0) {
return null;
}
AudioDeviceInfo[] devices = getDevicesStatic(flags);
for (AudioDeviceInfo device : devices) {
if (device.getId() == portId) {
return device;
}
}
return null;
}
/**
* Registers an {@link AudioDeviceCallback} object to receive notifications of changes
* to the set of connected audio devices.
@@ -6666,6 +6689,297 @@ public class AudioManager {
}
}
/**
* Selects the audio device that should be used for communication use cases, for instance voice
* or video calls. This method can be used by voice or video chat applications to select a
* different audio device than the one selected by default by the platform.
* <p>The device selection is expressed as an {@link AudioDeviceInfo}, of role sink
* ({@link AudioDeviceInfo#isSink()} is <code>true</code>) and of one of the following types:
* <ul>
* <li> {@link AudioDeviceInfo#TYPE_BUILTIN_EARPIECE}
* <li> {@link AudioDeviceInfo#TYPE_BUILTIN_SPEAKER}
* <li> {@link AudioDeviceInfo#TYPE_WIRED_HEADSET}
* <li> {@link AudioDeviceInfo#TYPE_BLUETOOTH_SCO}
* <li> {@link AudioDeviceInfo#TYPE_USB_HEADSET}
* <li> {@link AudioDeviceInfo#TYPE_BLE_HEADSET}
* </ul>
* The selection is active as long as the requesting application lives, until
* {@link #clearDeviceForCommunication} is called or until the device is disconnected.
* It is therefore important for applications to clear the request when a call ends or the
* application is paused.
* <p>In case of simultaneous requests by multiple applications the priority is given to the
* application currently controlling the audio mode (see {@link #setMode(int)}). This is the
* latest application having selected mode {@link #MODE_IN_COMMUNICATION} or mode
* {@link #MODE_IN_CALL}. Note that <code>MODE_IN_CALL</code> can only be selected by the main
* telephony application with permission
* {@link android.Manifest.permission#MODIFY_PHONE_STATE}.
* <p> If the requested devices is not currently available, the request will be rejected and
* the method will return false.
* <p>This API replaces the following deprecated APIs:
* <ul>
* <li> {@link #startBluetoothSco()}
* <li> {@link #stopBluetoothSco()}
* <li> {@link #setSpeakerphoneOn(boolean)}
* </ul>
* <h4>Example</h4>
* <p>The example below shows how to enable and disable speakerphone mode.
* <pre class="prettyprint">
* // Get an AudioManager instance
* AudioManager audioManager = Context.getSystemService(AudioManager.class);
* try {
* AudioDeviceInfo speakerDevice = null;
* AudioDeviceInfo[] devices = audioManager.getDevices(GET_DEVICES_OUTPUTS);
* for (AudioDeviceInfo device : devices) {
* if (device.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
* speakerDevice = device;
* break;
* }
* }
* if (speakerDevice != null) {
* // Turn speakerphone ON.
* boolean result = audioManager.setDeviceForCommunication(speakerDevice);
* if (!result) {
* // Handle error.
* }
* // Turn speakerphone OFF.
* audioManager.clearDeviceForCommunication();
* }
* } catch (IllegalArgumentException e) {
* // Handle exception.
* }
* </pre>
* @param device the requested audio device.
* @return <code>true</code> if the request was accepted, <code>false</code> otherwise.
* @throws IllegalArgumentException If an invalid device is specified.
*/
public boolean setDeviceForCommunication(@NonNull AudioDeviceInfo device) {
Objects.requireNonNull(device);
try {
if (device.getId() == 0) {
throw new IllegalArgumentException("In valid device: " + device);
}
return getService().setDeviceForCommunication(mICallBack, device.getId());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* Cancels previous communication device selection made with
* {@link #setDeviceForCommunication(AudioDeviceInfo)}.
*/
public void clearDeviceForCommunication() {
try {
getService().setDeviceForCommunication(mICallBack, 0);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* Returns currently selected audio device for communication.
* <p>This API replaces the following deprecated APIs:
* <ul>
* <li> {@link #isBluetoothScoOn()}
* <li> {@link #isSpeakerphoneOn()}
* </ul>
* @return an {@link AudioDeviceInfo} indicating which audio device is
* currently selected or communication use cases or null if default selection
* is used.
*/
@Nullable
public AudioDeviceInfo getDeviceForCommunication() {
try {
return getDeviceForPortId(
getService().getDeviceForCommunication(), GET_DEVICES_OUTPUTS);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* @hide
* Returns an {@link AudioDeviceInfo} corresponding to a connected device of the type provided.
* The type must be a valid output type defined in <code>AudioDeviceInfo</code> class,
* for instance {@link AudioDeviceInfo#TYPE_BUILTIN_SPEAKER}.
* The method will return null if no device of the provided type is connected.
* If more than one device of the provided type is connected, an object corresponding to the
* first device encountered in the enumeration list will be returned.
* @param deviceType The device device for which an <code>AudioDeviceInfo</code>
* object is queried.
* @return An AudioDeviceInfo object or null if no device with the requested type is connected.
* @throws IllegalArgumentException If an invalid device type is specified.
*/
@TestApi
@Nullable
public static AudioDeviceInfo getDeviceInfoFromType(
@AudioDeviceInfo.AudioDeviceTypeOut int deviceType) {
AudioDeviceInfo[] devices = getDevicesStatic(GET_DEVICES_OUTPUTS);
for (AudioDeviceInfo device : devices) {
if (device.getType() == deviceType) {
return device;
}
}
return null;
}
/**
* Listener registered by client to be notified upon communication audio device change.
* See {@link #setDeviceForCommunication(AudioDeviceInfo)}.
*/
public interface OnCommunicationDeviceChangedListener {
/**
* Callback method called upon communication audio device change.
* @param device the audio device selected for communication use cases
*/
void onCommunicationDeviceChanged(@Nullable AudioDeviceInfo device);
}
/**
* Adds a listener for being notified of changes to the communication audio device.
* See {@link #setDeviceForCommunication(AudioDeviceInfo)}.
* @param executor
* @param listener
*/
public void addOnCommunicationDeviceChangedListener(
@NonNull @CallbackExecutor Executor executor,
@NonNull OnCommunicationDeviceChangedListener listener) {
Objects.requireNonNull(executor);
Objects.requireNonNull(listener);
synchronized (mCommDevListenerLock) {
if (hasCommDevListener(listener)) {
throw new IllegalArgumentException(
"attempt to call addOnCommunicationDeviceChangedListener() "
+ "on a previously registered listener");
}
// lazy initialization of the list of strategy-preferred device listener
if (mCommDevListeners == null) {
mCommDevListeners = new ArrayList<>();
}
final int oldCbCount = mCommDevListeners.size();
mCommDevListeners.add(new CommDevListenerInfo(listener, executor));
if (oldCbCount == 0 && mCommDevListeners.size() > 0) {
// register binder for callbacks
if (mCommDevDispatcherStub == null) {
mCommDevDispatcherStub = new CommunicationDeviceDispatcherStub();
}
try {
getService().registerCommunicationDeviceDispatcher(mCommDevDispatcherStub);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
}
/**
* Removes a previously added listener of changes to the communication audio device.
* See {@link #setDeviceForCommunication(AudioDeviceInfo)}.
* @param listener
*/
public void removeOnCommunicationDeviceChangedListener(
@NonNull OnCommunicationDeviceChangedListener listener) {
Objects.requireNonNull(listener);
synchronized (mCommDevListenerLock) {
if (!removeCommDevListener(listener)) {
throw new IllegalArgumentException(
"attempt to call removeOnCommunicationDeviceChangedListener() "
+ "on an unregistered listener");
}
if (mCommDevListeners.size() == 0) {
// unregister binder for callbacks
try {
getService().unregisterCommunicationDeviceDispatcher(
mCommDevDispatcherStub);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
} finally {
mCommDevDispatcherStub = null;
mCommDevListeners = null;
}
}
}
}
private final Object mCommDevListenerLock = new Object();
/**
* List of listeners for preferred device for strategy and their associated Executor.
* List is lazy-initialized on first registration
*/
@GuardedBy("mCommDevListenerLock")
private @Nullable ArrayList<CommDevListenerInfo> mCommDevListeners;
private static class CommDevListenerInfo {
final @NonNull OnCommunicationDeviceChangedListener mListener;
final @NonNull Executor mExecutor;
CommDevListenerInfo(OnCommunicationDeviceChangedListener listener, Executor exe) {
mListener = listener;
mExecutor = exe;
}
}
@GuardedBy("mCommDevListenerLock")
private CommunicationDeviceDispatcherStub mCommDevDispatcherStub;
private final class CommunicationDeviceDispatcherStub
extends ICommunicationDeviceDispatcher.Stub {
@Override
public void dispatchCommunicationDeviceChanged(int portId) {
// make a shallow copy of listeners so callback is not executed under lock
final ArrayList<CommDevListenerInfo> commDevListeners;
synchronized (mCommDevListenerLock) {
if (mCommDevListeners == null || mCommDevListeners.size() == 0) {
return;
}
commDevListeners = (ArrayList<CommDevListenerInfo>) mCommDevListeners.clone();
}
AudioDeviceInfo device = getDeviceForPortId(portId, GET_DEVICES_OUTPUTS);
final long ident = Binder.clearCallingIdentity();
try {
for (CommDevListenerInfo info : commDevListeners) {
info.mExecutor.execute(() ->
info.mListener.onCommunicationDeviceChanged(device));
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@GuardedBy("mCommDevListenerLock")
private @Nullable CommDevListenerInfo getCommDevListenerInfo(
OnCommunicationDeviceChangedListener listener) {
if (mCommDevListeners == null) {
return null;
}
for (CommDevListenerInfo info : mCommDevListeners) {
if (info.mListener == listener) {
return info;
}
}
return null;
}
@GuardedBy("mCommDevListenerLock")
private boolean hasCommDevListener(OnCommunicationDeviceChangedListener listener) {
return getCommDevListenerInfo(listener) != null;
}
@GuardedBy("mCommDevListenerLock")
/**
* @return true if the listener was removed from the list
*/
private boolean removeCommDevListener(OnCommunicationDeviceChangedListener listener) {
final CommDevListenerInfo infoToRemove = getCommDevListenerInfo(listener);
if (infoToRemove != null) {
mCommDevListeners.remove(infoToRemove);
return true;
}
return false;
}
//---------------------------------------------------------
// Inner classes
//--------------------

2
media/java/android/media/AudioSystem.java
View File

@@ -1712,7 +1712,7 @@ public class AudioSystem
int[] types = new int[devices.size()];
String[] addresses = new String[devices.size()];
for (int i = 0; i < devices.size(); ++i) {
types[i] = AudioDeviceInfo.convertDeviceTypeToInternalDevice(devices.get(i).getType());
types[i] = devices.get(i).getInternalType();
addresses[i] = devices.get(i).getAddress();
}
return setDevicesRoleForStrategy(strategy, role, types, addresses);

10
media/java/android/media/IAudioService.aidl
View File

@@ -27,6 +27,7 @@ import android.media.IAudioFocusDispatcher;
import android.media.IAudioRoutesObserver;
import android.media.IAudioServerStateDispatcher;
import android.media.ICapturePresetDevicesRoleDispatcher;
import android.media.ICommunicationDeviceDispatcher;
import android.media.IPlaybackConfigDispatcher;
import android.media.IRecordingConfigDispatcher;
import android.media.IRingtonePlayer;
@@ -320,4 +321,13 @@ interface IAudioService {
oneway void unregisterCapturePresetDevicesRoleDispatcher(
ICapturePresetDevicesRoleDispatcher dispatcher);
boolean setDeviceForCommunication(IBinder cb, int portId);
int getDeviceForCommunication();
void registerCommunicationDeviceDispatcher(ICommunicationDeviceDispatcher dispatcher);
oneway void unregisterCommunicationDeviceDispatcher(
ICommunicationDeviceDispatcher dispatcher);
}

28
media/java/android/media/ICommunicationDeviceDispatcher.aidl Normal file
View File

@@ -0,0 +1,28 @@
/*
* 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.media;
/**
* AIDL for AudioService to signal audio communication device updates.
*
* {@hide}
*/
oneway interface ICommunicationDeviceDispatcher {
void dispatchCommunicationDeviceChanged(int portId);
}

639
services/core/java/com/android/server/audio/AudioDeviceBroker.java
View File

@@ -16,6 +16,7 @@
package com.android.server.audio;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.bluetooth.BluetoothA2dp;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothHeadset;
@@ -25,20 +26,26 @@ import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.media.AudioDeviceAttributes;
import android.media.AudioDeviceInfo;
import android.media.AudioManager;
import android.media.AudioRoutesInfo;
import android.media.AudioSystem;
import android.media.IAudioRoutesObserver;
import android.media.ICapturePresetDevicesRoleDispatcher;
import android.media.ICommunicationDeviceDispatcher;
import android.media.IStrategyPreferredDevicesDispatcher;
import android.media.MediaMetrics;
import android.media.audiopolicy.AudioProductStrategy;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.UserHandle;
import android.text.TextUtils;
import android.util.Log;
import android.util.PrintWriterPrinter;
@@ -46,8 +53,9 @@ import android.util.PrintWriterPrinter;
import com.android.internal.annotations.GuardedBy;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
@@ -72,11 +80,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
private final @NonNull Context mContext;
/** Forced device usage for communications sent to AudioSystem */
private int mForcedUseForComm;
/**
* Externally reported force device usage state returned by getters: always consistent
* with requests by setters */
private int mForcedUseForCommExt;
private AudioDeviceAttributes mPreferredDeviceforComm;
private int mCommunicationStrategyId = -1;
// Manages all connected devices, only ever accessed on the message loop
private final AudioDeviceInventory mDeviceInventory;
@@ -132,11 +137,23 @@ import java.util.concurrent.atomic.AtomicBoolean;
init();
}
private void initCommunicationStrategyId() {
List<AudioProductStrategy> strategies = AudioProductStrategy.getAudioProductStrategies();
for (AudioProductStrategy strategy : strategies) {
if (strategy.getAudioAttributesForLegacyStreamType(AudioSystem.STREAM_VOICE_CALL)
!= null) {
mCommunicationStrategyId = strategy.getId();
return;
}
}
mCommunicationStrategyId = -1;
}
private void init() {
setupMessaging(mContext);
mForcedUseForComm = AudioSystem.FORCE_NONE;
mForcedUseForCommExt = mForcedUseForComm;
mPreferredDeviceforComm = null;
initCommunicationStrategyId();
}
/*package*/ Context getContext() {
@@ -159,15 +176,6 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
/*package*/ void onAudioServerDied() {
// Restore forced usage for communications and record
synchronized (mDeviceStateLock) {
AudioSystem.setParameters(
"BT_SCO=" + (mForcedUseForComm == AudioSystem.FORCE_BT_SCO ? "on" : "off"));
onSetForceUse(AudioSystem.FOR_COMMUNICATION, mForcedUseForComm,
false /*fromA2dp*/, "onAudioServerDied");
onSetForceUse(AudioSystem.FOR_RECORD, mForcedUseForComm,
false /*fromA2dp*/, "onAudioServerDied");
}
// restore devices
sendMsgNoDelay(MSG_RESTORE_DEVICES, SENDMSG_REPLACE);
}
@@ -219,85 +227,210 @@ import java.util.concurrent.atomic.AtomicBoolean;
* Turns speakerphone on/off
* @param on
* @param eventSource for logging purposes
* @return true if speakerphone state changed
*/
/*package*/ boolean setSpeakerphoneOn(IBinder cb, int pid, boolean on, String eventSource) {
synchronized (mDeviceStateLock) {
if (!addSpeakerphoneClient(cb, pid, on)) {
return false;
/*package*/ void setSpeakerphoneOn(IBinder cb, int pid, boolean on, String eventSource) {
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "setSpeakerphoneOn, on: " + on + " pid: " + pid);
}
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
AudioDeviceAttributes device = null;
if (on) {
device = new AudioDeviceAttributes(AudioSystem.DEVICE_OUT_SPEAKER, "");
} else {
CommunicationRouteClient client = getCommunicationRouteClientForPid(pid);
if (client == null || !client.requestsSpeakerphone()) {
return;
}
}
setCommunicationRouteForClient(
cb, pid, device, BtHelper.SCO_MODE_UNDEFINED, eventSource);
}
if (on) {
// Cancel BT SCO ON request by this same client: speakerphone and BT SCO routes
// are mutually exclusive.
// See symmetrical operation for startBluetoothScoForClient_Sync().
mBtHelper.stopBluetoothScoForPid(pid);
}
final boolean wasOn = isSpeakerphoneOn();
updateSpeakerphoneOn(eventSource);
return (wasOn != isSpeakerphoneOn());
}
}
/**
* Turns speakerphone off for a given pid and update speakerphone state.
* @param pid
* Select device for use for communication use cases.
* @param cb Client binder for death detection
* @param pid Client pid
* @param device Device selected or null to unselect.
* @param eventSource for logging purposes
*/
/*package*/ boolean setDeviceForCommunication(
IBinder cb, int pid, AudioDeviceInfo device, String eventSource) {
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "setDeviceForCommunication, device: " + device + ", pid: " + pid);
}
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
AudioDeviceAttributes deviceAttr = null;
if (device != null) {
deviceAttr = new AudioDeviceAttributes(device);
} else {
CommunicationRouteClient client = getCommunicationRouteClientForPid(pid);
if (client == null) {
return false;
}
}
setCommunicationRouteForClient(
cb, pid, deviceAttr, BtHelper.SCO_MODE_UNDEFINED, eventSource);
}
}
return true;
}
@GuardedBy("mDeviceStateLock")
private void setSpeakerphoneOffForPid(int pid) {
SpeakerphoneClient client = getSpeakerphoneClientForPid(pid);
/*package*/ void setCommunicationRouteForClient(
IBinder cb, int pid, AudioDeviceAttributes device,
int scoAudioMode, String eventSource) {
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "setCommunicationRouteForClient: device: " + device);
}
AudioService.sDeviceLogger.log((new AudioEventLogger.StringEvent(
"setCommunicationRouteForClient for pid: " + pid
+ " device: " + device
+ " from API: " + eventSource)).printLog(TAG));
final boolean wasBtScoRequested = isBluetoothScoRequested();
final boolean wasSpeakerphoneRequested = isSpeakerphoneRequested();
CommunicationRouteClient client;
// Save previous client route in case of failure to start BT SCO audio
AudioDeviceAttributes prevClientDevice = null;
client = getCommunicationRouteClientForPid(pid);
if (client != null) {
prevClientDevice = client.getDevice();
}
if (device != null) {
client = addCommunicationRouteClient(cb, pid, device);
if (client == null) {
Log.w(TAG, "setCommunicationRouteForClient: could not add client for pid: "
+ pid + " and device: " + device);
}
} else {
client = removeCommunicationRouteClient(cb, true);
}
if (client == null) {
return;
}
client.unregisterDeathRecipient();
mSpeakerphoneClients.remove(client);
final String eventSource = new StringBuilder("setSpeakerphoneOffForPid(")
.append(pid).append(")").toString();
updateSpeakerphoneOn(eventSource);
}
@GuardedBy("mDeviceStateLock")
private void updateSpeakerphoneOn(String eventSource) {
if (isSpeakerphoneOnRequested()) {
if (mForcedUseForComm == AudioSystem.FORCE_BT_SCO) {
setForceUse_Async(AudioSystem.FOR_RECORD, AudioSystem.FORCE_NONE, eventSource);
boolean isBtScoRequested = isBluetoothScoRequested();
if (isBtScoRequested && !wasBtScoRequested) {
if (!mBtHelper.startBluetoothSco(scoAudioMode, eventSource)) {
Log.w(TAG, "setCommunicationRouteForClient: failure to start BT SCO for pid: "
+ pid);
// clean up or restore previous client selection
if (prevClientDevice != null) {
addCommunicationRouteClient(cb, pid, prevClientDevice);
} else {
removeCommunicationRouteClient(cb, true);
}
postBroadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
}
mForcedUseForComm = AudioSystem.FORCE_SPEAKER;
} else if (mForcedUseForComm == AudioSystem.FORCE_SPEAKER) {
if (mBtHelper.isBluetoothScoOn()) {
mForcedUseForComm = AudioSystem.FORCE_BT_SCO;
setForceUse_Async(
AudioSystem.FOR_RECORD, AudioSystem.FORCE_BT_SCO, eventSource);
} else {
mForcedUseForComm = AudioSystem.FORCE_NONE;
} else if (!isBtScoRequested && wasBtScoRequested) {
mBtHelper.stopBluetoothSco(eventSource);
}
if (wasSpeakerphoneRequested != isSpeakerphoneRequested()) {
try {
mContext.sendBroadcastAsUser(
new Intent(AudioManager.ACTION_SPEAKERPHONE_STATE_CHANGED)
.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY), UserHandle.ALL);
} catch (Exception e) {
Log.w(TAG, "failed to broadcast ACTION_SPEAKERPHONE_STATE_CHANGED: " + e);
}
}
mForcedUseForCommExt = mForcedUseForComm;
setForceUse_Async(AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, eventSource);
sendLMsgNoDelay(MSG_L_UPDATE_COMMUNICATION_ROUTE, SENDMSG_QUEUE, eventSource);
}
/**
* Returns if speakerphone is requested ON or OFF.
* If the current audio mode owner is in the speakerphone client list, use this preference.
* Returns the device currently requested for communication use case.
* If the current audio mode owner is in the communication route client list,
* use this preference.
* Otherwise use first client's preference (first client corresponds to latest request).
* Speakerphone is requested OFF if no client is in the list.
* @return true if speakerphone is requested ON, false otherwise
* null is returned if no client is in the list.
* @return AudioDeviceAttributes the requested device for communication.
*/
@GuardedBy("mDeviceStateLock")
private boolean isSpeakerphoneOnRequested() {
if (mSpeakerphoneClients.isEmpty()) {
return false;
}
for (SpeakerphoneClient cl : mSpeakerphoneClients) {
private AudioDeviceAttributes requestedCommunicationDevice() {
AudioDeviceAttributes device = null;
for (CommunicationRouteClient cl : mCommunicationRouteClients) {
if (cl.getPid() == mModeOwnerPid) {
return cl.isOn();
device = cl.getDevice();
}
}
return mSpeakerphoneClients.get(0).isOn();
if (!mCommunicationRouteClients.isEmpty() && mModeOwnerPid == 0) {
device = mCommunicationRouteClients.get(0).getDevice();
}
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "requestedCommunicationDevice, device: "
+ device + " mode owner pid: " + mModeOwnerPid);
}
return device;
}
/*package*/ boolean isSpeakerphoneOn() {
/**
* Returns the device currently requested for communication use case.
* @return AudioDeviceInfo the requested device for communication.
*/
AudioDeviceInfo getDeviceForCommunication() {
synchronized (mDeviceStateLock) {
return (mForcedUseForCommExt == AudioSystem.FORCE_SPEAKER);
AudioDeviceAttributes device = requestedCommunicationDevice();
if (device == null) {
return null;
}
return AudioManager.getDeviceInfoFromType(device.getType());
}
}
/**
* Helper method on top of requestedCommunicationDevice() indicating if
* speakerphone ON is currently requested or not.
* @return true if speakerphone ON requested, false otherwise.
*/
private boolean isSpeakerphoneRequested() {
synchronized (mDeviceStateLock) {
AudioDeviceAttributes device = requestedCommunicationDevice();
return device != null
&& device.getType()
== AudioDeviceInfo.TYPE_BUILTIN_SPEAKER;
}
}
/**
* Indicates if active route selection for communication is speakerphone.
* @return true if speakerphone is active, false otherwise.
*/
/*package*/ boolean isSpeakerphoneOn() {
AudioDeviceAttributes device = getPreferredDeviceForComm();
if (device == null) {
return false;
}
return device.getInternalType() == AudioSystem.DEVICE_OUT_SPEAKER;
}
/**
* Helper method on top of requestedCommunicationDevice() indicating if
* Bluetooth SCO ON is currently requested or not.
* @return true if Bluetooth SCO ON is requested, false otherwise.
*/
/*package*/ boolean isBluetoothScoRequested() {
synchronized (mDeviceStateLock) {
AudioDeviceAttributes device = requestedCommunicationDevice();
return device != null
&& device.getType()
== AudioDeviceInfo.TYPE_BLUETOOTH_SCO;
}
}
@@ -348,7 +481,6 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
}
/*package*/ void postBluetoothA2dpDeviceConnectionStateSuppressNoisyIntent(
@NonNull BluetoothDevice device, @AudioService.BtProfileConnectionState int state,
int profile, boolean suppressNoisyIntent, int a2dpVolume) {
@@ -431,42 +563,32 @@ import java.util.concurrent.atomic.AtomicBoolean;
sendLMsgNoDelay(MSG_L_HEARING_AID_DEVICE_CONNECTION_CHANGE_EXT, SENDMSG_QUEUE, info);
}
// never called by system components
/*package*/ void setBluetoothScoOnByApp(boolean on) {
synchronized (mDeviceStateLock) {
mForcedUseForCommExt = on ? AudioSystem.FORCE_BT_SCO : AudioSystem.FORCE_NONE;
}
}
/*package*/ boolean isBluetoothScoOnForApp() {
synchronized (mDeviceStateLock) {
return mForcedUseForCommExt == AudioSystem.FORCE_BT_SCO;
}
}
/**
* Current Bluetooth SCO audio active state indicated by BtHelper via setBluetoothScoOn().
*/
private boolean mBluetoothScoOn;
/*package*/ void setBluetoothScoOn(boolean on, String eventSource) {
//Log.i(TAG, "setBluetoothScoOn: " + on + " " + eventSource);
synchronized (mDeviceStateLock) {
if (on) {
// do not accept SCO ON if SCO audio is not connected
if (!mBtHelper.isBluetoothScoOn()) {
mForcedUseForCommExt = AudioSystem.FORCE_BT_SCO;
return;
}
mForcedUseForComm = AudioSystem.FORCE_BT_SCO;
} else if (mForcedUseForComm == AudioSystem.FORCE_BT_SCO) {
mForcedUseForComm = isSpeakerphoneOnRequested()
? AudioSystem.FORCE_SPEAKER : AudioSystem.FORCE_NONE;
}
mForcedUseForCommExt = mForcedUseForComm;
AudioSystem.setParameters("BT_SCO=" + (on ? "on" : "off"));
sendIILMsgNoDelay(MSG_IIL_SET_FORCE_USE, SENDMSG_QUEUE,
AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, eventSource);
sendIILMsgNoDelay(MSG_IIL_SET_FORCE_USE, SENDMSG_QUEUE,
AudioSystem.FOR_RECORD, mForcedUseForComm, eventSource);
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "setBluetoothScoOn: " + on + " " + eventSource);
}
// Un-mute ringtone stream volume
mAudioService.postUpdateRingerModeServiceInt();
synchronized (mDeviceStateLock) {
mBluetoothScoOn = on;
sendLMsgNoDelay(MSG_L_UPDATE_COMMUNICATION_ROUTE, SENDMSG_QUEUE, eventSource);
}
}
/**
* Indicates if active route selection for communication is Bluetooth SCO.
* @return true if Bluetooth SCO is active , false otherwise.
*/
/*package*/ boolean isBluetoothScoOn() {
AudioDeviceAttributes device = getPreferredDeviceForComm();
if (device == null) {
return false;
}
return AudioSystem.DEVICE_OUT_ALL_SCO_SET.contains(device.getInternalType());
}
/*package*/ AudioRoutesInfo startWatchingRoutes(IAudioRoutesObserver observer) {
@@ -509,22 +631,38 @@ import java.util.concurrent.atomic.AtomicBoolean;
sendLMsgNoDelay(MSG_L_A2DP_DEVICE_CONFIG_CHANGE, SENDMSG_QUEUE, device);
}
@GuardedBy("mSetModeLock")
/*package*/ void startBluetoothScoForClient_Sync(IBinder cb, int scoAudioMode,
/*package*/ void startBluetoothScoForClient(IBinder cb, int pid, int scoAudioMode,
@NonNull String eventSource) {
synchronized (mDeviceStateLock) {
// Cancel speakerphone ON request by this same client: speakerphone and BT SCO routes
// are mutually exclusive.
// See symmetrical operation for setSpeakerphoneOn(true).
setSpeakerphoneOffForPid(Binder.getCallingPid());
mBtHelper.startBluetoothScoForClient(cb, scoAudioMode, eventSource);
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "startBluetoothScoForClient_Sync, pid: " + pid);
}
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
AudioDeviceAttributes device =
new AudioDeviceAttributes(AudioSystem.DEVICE_OUT_BLUETOOTH_SCO, "");
setCommunicationRouteForClient(cb, pid, device, scoAudioMode, eventSource);
}
}
}
@GuardedBy("mSetModeLock")
/*package*/ void stopBluetoothScoForClient_Sync(IBinder cb, @NonNull String eventSource) {
synchronized (mDeviceStateLock) {
mBtHelper.stopBluetoothScoForClient(cb, eventSource);
/*package*/ void stopBluetoothScoForClient(
IBinder cb, int pid, @NonNull String eventSource) {
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "stopBluetoothScoForClient_Sync, pid: " + pid);
}
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
CommunicationRouteClient client = getCommunicationRouteClientForPid(pid);
if (client == null || !client.requestsBluetoothSco()) {
return;
}
setCommunicationRouteForClient(
cb, pid, null, BtHelper.SCO_MODE_UNDEFINED, eventSource);
}
}
}
@@ -533,10 +671,19 @@ import java.util.concurrent.atomic.AtomicBoolean;
return mDeviceInventory.setPreferredDevicesForStrategySync(strategy, devices);
}
/*package*/ void postSetPreferredDevicesForStrategy(int strategy,
@NonNull List<AudioDeviceAttributes> devices) {
sendILMsgNoDelay(MSG_IL_SET_PREF_DEVICES_FOR_STRATEGY, SENDMSG_REPLACE, strategy, devices);
}
/*package*/ int removePreferredDevicesForStrategySync(int strategy) {
return mDeviceInventory.removePreferredDevicesForStrategySync(strategy);
}
/*package*/ void postRemovePreferredDevicesForStrategy(int strategy) {
sendIMsgNoDelay(MSG_I_REMOVE_PREF_DEVICES_FOR_STRATEGY, SENDMSG_REPLACE, strategy);
}
/*package*/ void registerStrategyPreferredDevicesDispatcher(
@NonNull IStrategyPreferredDevicesDispatcher dispatcher) {
mDeviceInventory.registerStrategyPreferredDevicesDispatcher(dispatcher);
@@ -566,6 +713,45 @@ import java.util.concurrent.atomic.AtomicBoolean;
mDeviceInventory.unregisterCapturePresetDevicesRoleDispatcher(dispatcher);
}
/*package*/ void registerCommunicationDeviceDispatcher(
@NonNull ICommunicationDeviceDispatcher dispatcher) {
mCommDevDispatchers.register(dispatcher);
}
/*package*/ void unregisterCommunicationDeviceDispatcher(
@NonNull ICommunicationDeviceDispatcher dispatcher) {
mCommDevDispatchers.unregister(dispatcher);
}
// Monitoring of communication device
final RemoteCallbackList<ICommunicationDeviceDispatcher> mCommDevDispatchers =
new RemoteCallbackList<ICommunicationDeviceDispatcher>();
// portId of the device currently selected for communication: avoids broadcasting changes
// when same communication route is applied
@GuardedBy("mDeviceStateLock")
int mCurCommunicationPortId = -1;
@GuardedBy("mDeviceStateLock")
private void dispatchCommunicationDevice() {
AudioDeviceInfo device = getDeviceForCommunication();
int portId = (getDeviceForCommunication() == null) ? 0 : device.getId();
if (portId == mCurCommunicationPortId) {
return;
}
mCurCommunicationPortId = portId;
final int nbDispatchers = mCommDevDispatchers.beginBroadcast();
for (int i = 0; i < nbDispatchers; i++) {
try {
mCommDevDispatchers.getBroadcastItem(i)
.dispatchCommunicationDeviceChanged(portId);
} catch (RemoteException e) {
}
}
mCommDevDispatchers.finishBroadcast();
}
//---------------------------------------------------------------------
// Communication with (to) AudioService
//TODO check whether the AudioService methods are candidates to move here
@@ -696,12 +882,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
hearingAidProfile);
}
/*package*/ void postScoClientDied(Object obj) {
sendLMsgNoDelay(MSG_L_SCOCLIENT_DIED, SENDMSG_QUEUE, obj);
}
/*package*/ void postSpeakerphoneClientDied(Object obj) {
sendLMsgNoDelay(MSG_L_SPEAKERPHONE_CLIENT_DIED, SENDMSG_QUEUE, obj);
/*package*/ void postCommunicationRouteClientDied(CommunicationRouteClient client) {
sendLMsgNoDelay(MSG_L_COMMUNICATION_ROUTE_CLIENT_DIED, SENDMSG_QUEUE, client);
}
/*package*/ void postSaveSetPreferredDevicesForStrategy(int strategy,
@@ -821,15 +1003,17 @@ import java.util.concurrent.atomic.AtomicBoolean;
mDeviceInventory.dump(pw, prefix);
pw.println("\n" + prefix + "mForcedUseForComm: "
+ AudioSystem.forceUseConfigToString(mForcedUseForComm));
pw.println(prefix + "mForcedUseForCommExt: "
+ AudioSystem.forceUseConfigToString(mForcedUseForCommExt));
pw.println(prefix + "mModeOwnerPid: " + mModeOwnerPid);
pw.println(prefix + "Speakerphone clients:");
mSpeakerphoneClients.forEach((cl) -> {
pw.println(" " + prefix + "pid: " + cl.getPid() + " on: "
+ cl.isOn() + " cb: " + cl.getBinder()); });
pw.println("\n" + prefix + "Communication route clients:");
mCommunicationRouteClients.forEach((cl) -> {
pw.println(" " + prefix + "pid: " + cl.getPid() + " device: "
+ cl.getDevice() + " cb: " + cl.getBinder()); });
pw.println("\n" + prefix + "mPreferredDeviceforComm: "
+ mPreferredDeviceforComm);
pw.println(prefix + "mCommunicationStrategyId: "
+ mCommunicationStrategyId);
pw.println("\n" + prefix + "mModeOwnerPid: " + mModeOwnerPid);
mBtHelper.dump(pw, prefix);
}
@@ -852,6 +1036,11 @@ import java.util.concurrent.atomic.AtomicBoolean;
.set(MediaMetrics.Property.FORCE_USE_MODE,
AudioSystem.forceUseConfigToString(config))
.record();
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "onSetForceUse(useCase<" + useCase + ">, config<" + config + ">, fromA2dp<"
+ fromA2dp + ">, eventSource<" + eventSource + ">)");
}
AudioSystem.setForceUse(useCase, config);
}
@@ -917,9 +1106,13 @@ import java.util.concurrent.atomic.AtomicBoolean;
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_RESTORE_DEVICES:
synchronized (mDeviceStateLock) {
mDeviceInventory.onRestoreDevices();
mBtHelper.onAudioServerDiedRestoreA2dp();
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
initCommunicationStrategyId();
mDeviceInventory.onRestoreDevices();
mBtHelper.onAudioServerDiedRestoreA2dp();
onUpdateCommunicationRoute("MSG_RESTORE_DEVICES");
}
}
break;
case MSG_L_SET_WIRED_DEVICE_CONNECTION_STATE:
@@ -1009,25 +1202,24 @@ import java.util.concurrent.atomic.AtomicBoolean;
if (mModeOwnerPid != msg.arg1) {
mModeOwnerPid = msg.arg1;
if (msg.arg2 != AudioSystem.MODE_RINGTONE) {
updateSpeakerphoneOn("setNewModeOwner");
}
if (mModeOwnerPid != 0) {
mBtHelper.disconnectBluetoothSco(mModeOwnerPid);
onUpdateCommunicationRoute("setNewModeOwner");
}
}
}
}
break;
case MSG_L_SCOCLIENT_DIED:
case MSG_L_COMMUNICATION_ROUTE_CLIENT_DIED:
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
mBtHelper.scoClientDied(msg.obj);
onCommunicationRouteClientDied((CommunicationRouteClient) msg.obj);
}
}
break;
case MSG_L_SPEAKERPHONE_CLIENT_DIED:
synchronized (mDeviceStateLock) {
speakerphoneClientDied(msg.obj);
case MSG_L_UPDATE_COMMUNICATION_ROUTE:
synchronized (mSetModeLock) {
synchronized (mDeviceStateLock) {
onUpdateCommunicationRoute((String) msg.obj);
}
}
break;
case MSG_TOGGLE_HDMI:
@@ -1126,6 +1318,17 @@ import java.util.concurrent.atomic.AtomicBoolean;
final int strategy = msg.arg1;
mDeviceInventory.onSaveRemovePreferredDevices(strategy);
} break;
case MSG_IL_SET_PREF_DEVICES_FOR_STRATEGY: {
final int strategy = msg.arg1;
final List<AudioDeviceAttributes> devices =
(List<AudioDeviceAttributes>) msg.obj;
setPreferredDevicesForStrategySync(strategy, devices);
} break;
case MSG_I_REMOVE_PREF_DEVICES_FOR_STRATEGY: {
final int strategy = msg.arg1;
removePreferredDevicesForStrategySync(strategy);
} break;
case MSG_CHECK_MUTE_MUSIC:
checkMessagesMuteMusic(0);
break;
@@ -1207,18 +1410,19 @@ import java.util.concurrent.atomic.AtomicBoolean;
// process external command to (dis)connect a hearing aid device
private static final int MSG_L_HEARING_AID_DEVICE_CONNECTION_CHANGE_EXT = 31;
// a ScoClient died in BtHelper
private static final int MSG_L_SCOCLIENT_DIED = 32;
private static final int MSG_IL_SAVE_PREF_DEVICES_FOR_STRATEGY = 33;
private static final int MSG_I_SAVE_REMOVE_PREF_DEVICES_FOR_STRATEGY = 34;
private static final int MSG_IL_SAVE_PREF_DEVICES_FOR_STRATEGY = 32;
private static final int MSG_I_SAVE_REMOVE_PREF_DEVICES_FOR_STRATEGY = 33;
private static final int MSG_L_SPEAKERPHONE_CLIENT_DIED = 35;
private static final int MSG_CHECK_MUTE_MUSIC = 36;
private static final int MSG_REPORT_NEW_ROUTES_A2DP = 37;
private static final int MSG_L_COMMUNICATION_ROUTE_CLIENT_DIED = 34;
private static final int MSG_CHECK_MUTE_MUSIC = 35;
private static final int MSG_REPORT_NEW_ROUTES_A2DP = 36;
private static final int MSG_IL_SAVE_PREF_DEVICES_FOR_CAPTURE_PRESET = 38;
private static final int MSG_I_SAVE_CLEAR_PREF_DEVICES_FOR_CAPTURE_PRESET = 39;
private static final int MSG_IL_SAVE_PREF_DEVICES_FOR_CAPTURE_PRESET = 37;
private static final int MSG_I_SAVE_CLEAR_PREF_DEVICES_FOR_CAPTURE_PRESET = 38;
private static final int MSG_L_UPDATE_COMMUNICATION_ROUTE = 39;
private static final int MSG_IL_SET_PREF_DEVICES_FOR_STRATEGY = 40;
private static final int MSG_I_REMOVE_PREF_DEVICES_FOR_STRATEGY = 41;
private static boolean isMessageHandledUnderWakelock(int msgId) {
switch(msgId) {
@@ -1372,14 +1576,20 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
}
private class SpeakerphoneClient implements IBinder.DeathRecipient {
// List of applications requesting a specific route for communication.
@GuardedBy("mDeviceStateLock")
private final @NonNull LinkedList<CommunicationRouteClient> mCommunicationRouteClients =
new LinkedList<CommunicationRouteClient>();
private class CommunicationRouteClient implements IBinder.DeathRecipient {
private final IBinder mCb;
private final int mPid;
private final boolean mOn;
SpeakerphoneClient(IBinder cb, int pid, boolean on) {
private AudioDeviceAttributes mDevice;
CommunicationRouteClient(IBinder cb, int pid, AudioDeviceAttributes device) {
mCb = cb;
mPid = pid;
mOn = on;
mDevice = device;
}
public boolean registerDeathRecipient() {
@@ -1388,7 +1598,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
mCb.linkToDeath(this, 0);
status = true;
} catch (RemoteException e) {
Log.w(TAG, "SpeakerphoneClient could not link to " + mCb + " binder death");
Log.w(TAG, "CommunicationRouteClient could not link to " + mCb + " binder death");
}
return status;
}
@@ -1397,13 +1607,13 @@ import java.util.concurrent.atomic.AtomicBoolean;
try {
mCb.unlinkToDeath(this, 0);
} catch (NoSuchElementException e) {
Log.w(TAG, "SpeakerphoneClient could not not unregistered to binder");
Log.w(TAG, "CommunicationRouteClient could not not unregistered to binder");
}
}
@Override
public void binderDied() {
postSpeakerphoneClientDied(this);
postCommunicationRouteClientDied(this);
}
IBinder getBinder() {
@@ -1414,29 +1624,103 @@ import java.util.concurrent.atomic.AtomicBoolean;
return mPid;
}
boolean isOn() {
return mOn;
AudioDeviceAttributes getDevice() {
return mDevice;
}
boolean requestsBluetoothSco() {
return mDevice != null
&& mDevice.getType()
== AudioDeviceInfo.TYPE_BLUETOOTH_SCO;
}
boolean requestsSpeakerphone() {
return mDevice != null
&& mDevice.getType()
== AudioDeviceInfo.TYPE_BUILTIN_SPEAKER;
}
}
// @GuardedBy("mSetModeLock")
@GuardedBy("mDeviceStateLock")
private void speakerphoneClientDied(Object obj) {
if (obj == null) {
private void onCommunicationRouteClientDied(CommunicationRouteClient client) {
if (client == null) {
return;
}
Log.w(TAG, "Speaker client died");
if (removeSpeakerphoneClient(((SpeakerphoneClient) obj).getBinder(), false) != null) {
updateSpeakerphoneOn("speakerphoneClientDied");
if (removeCommunicationRouteClient(client.getBinder(), false)
!= null) {
onUpdateCommunicationRoute("onCommunicationRouteClientDied");
}
}
private SpeakerphoneClient removeSpeakerphoneClient(IBinder cb, boolean unregister) {
for (SpeakerphoneClient cl : mSpeakerphoneClients) {
/**
* Determines which forced usage for communication should be sent to audio policy manager
* as a function of current SCO audio activation state and active communication route requests.
* SCO audio state has the highest priority as it can result from external activation by
* telephony service.
* @return selected forced usage for communication.
*/
@GuardedBy("mDeviceStateLock")
@Nullable private AudioDeviceAttributes getPreferredDeviceForComm() {
boolean btSCoOn = mBluetoothScoOn && mBtHelper.isBluetoothScoOn();
if (btSCoOn) {
// Use the SCO device known to BtHelper so that it matches exactly
// what has been communicated to audio policy manager. The device
// returned by requestedCommunicationDevice() can be a dummy SCO device if legacy
// APIs are used to start SCO audio.
AudioDeviceAttributes device = mBtHelper.getHeadsetAudioDevice();
if (device != null) {
return device;
}
}
AudioDeviceAttributes device = requestedCommunicationDevice();
if (device == null
|| AudioSystem.DEVICE_OUT_ALL_SCO_SET.contains(device.getInternalType())) {
// Do not indicate BT SCO selection if SCO is requested but SCO is not ON
return null;
}
return device;
}
/**
* Configures audio policy manager and audio HAL according to active communication route.
* Always called from message Handler.
*/
// @GuardedBy("mSetModeLock")
@GuardedBy("mDeviceStateLock")
private void onUpdateCommunicationRoute(String eventSource) {
mPreferredDeviceforComm = getPreferredDeviceForComm();
if (AudioService.DEBUG_COMM_RTE) {
Log.v(TAG, "onUpdateCommunicationRoute, mPreferredDeviceforComm: "
+ mPreferredDeviceforComm + " eventSource: " + eventSource);
}
if (mPreferredDeviceforComm == null
|| !AudioSystem.DEVICE_OUT_ALL_SCO_SET.contains(
mPreferredDeviceforComm.getInternalType())) {
AudioSystem.setParameters("BT_SCO=off");
} else {
AudioSystem.setParameters("BT_SCO=on");
}
if (mPreferredDeviceforComm == null) {
postRemovePreferredDevicesForStrategy(mCommunicationStrategyId);
} else {
postSetPreferredDevicesForStrategy(
mCommunicationStrategyId, Arrays.asList(mPreferredDeviceforComm));
}
mAudioService.postUpdateRingerModeServiceInt();
dispatchCommunicationDevice();
}
private CommunicationRouteClient removeCommunicationRouteClient(
IBinder cb, boolean unregister) {
for (CommunicationRouteClient cl : mCommunicationRouteClients) {
if (cl.getBinder() == cb) {
if (unregister) {
cl.unregisterDeathRecipient();
}
mSpeakerphoneClients.remove(cl);
mCommunicationRouteClients.remove(cl);
return cl;
}
}
@@ -1444,30 +1728,25 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
@GuardedBy("mDeviceStateLock")
private boolean addSpeakerphoneClient(IBinder cb, int pid, boolean on) {
private CommunicationRouteClient addCommunicationRouteClient(
IBinder cb, int pid, AudioDeviceAttributes device) {
// always insert new request at first position
removeSpeakerphoneClient(cb, true);
SpeakerphoneClient client = new SpeakerphoneClient(cb, pid, on);
removeCommunicationRouteClient(cb, true);
CommunicationRouteClient client = new CommunicationRouteClient(cb, pid, device);
if (client.registerDeathRecipient()) {
mSpeakerphoneClients.add(0, client);
return true;
mCommunicationRouteClients.add(0, client);
return client;
}
return false;
return null;
}
@GuardedBy("mDeviceStateLock")
private SpeakerphoneClient getSpeakerphoneClientForPid(int pid) {
for (SpeakerphoneClient cl : mSpeakerphoneClients) {
private CommunicationRouteClient getCommunicationRouteClientForPid(int pid) {
for (CommunicationRouteClient cl : mCommunicationRouteClients) {
if (cl.getPid() == pid) {
return cl;
}
}
return null;
}
// List of clients requesting speakerPhone ON
@GuardedBy("mDeviceStateLock")
private final @NonNull ArrayList<SpeakerphoneClient> mSpeakerphoneClients =
new ArrayList<SpeakerphoneClient>();
}

4
services/core/java/com/android/server/audio/AudioDeviceInventory.java
View File

@@ -648,6 +648,10 @@ public class AudioDeviceInventory {
/*package*/ int setPreferredDevicesForStrategySync(int strategy,
@NonNull List<AudioDeviceAttributes> devices) {
final long identity = Binder.clearCallingIdentity();
AudioService.sDeviceLogger.log((new AudioEventLogger.StringEvent(
"setPreferredDevicesForStrategySync, strategy: " + strategy
+ " devices: " + devices)).printLog(TAG));
final int status = mAudioSystem.setDevicesRoleForStrategy(
strategy, AudioSystem.DEVICE_ROLE_PREFERRED, devices);
Binder.restoreCallingIdentity(identity);

165
services/core/java/com/android/server/audio/AudioService.java
View File

@@ -85,6 +85,7 @@ import android.media.IAudioRoutesObserver;
import android.media.IAudioServerStateDispatcher;
import android.media.IAudioService;
import android.media.ICapturePresetDevicesRoleDispatcher;
import android.media.ICommunicationDeviceDispatcher;
import android.media.IPlaybackConfigDispatcher;
import android.media.IRecordingConfigDispatcher;
import android.media.IRingtonePlayer;
@@ -207,6 +208,9 @@ public class AudioService extends IAudioService.Stub
/** debug calls to devices APIs */
protected static final boolean DEBUG_DEVICES = false;
/** Debug communication route */
protected static final boolean DEBUG_COMM_RTE = false;
/** How long to delay before persisting a change in volume/ringer mode. */
private static final int PERSIST_DELAY = 500;
@@ -3689,7 +3693,7 @@ public class AudioService extends IAudioService.Stub
final boolean ringerModeMute = ringerMode == AudioManager.RINGER_MODE_VIBRATE
|| ringerMode == AudioManager.RINGER_MODE_SILENT;
final boolean shouldRingSco = ringerMode == AudioManager.RINGER_MODE_VIBRATE
&& isBluetoothScoOn();
&& mDeviceBroker.isBluetoothScoOn();
// Ask audio policy engine to force use Bluetooth SCO channel if needed
final String eventSource = "muteRingerModeStreams() from u/pid:" + Binder.getCallingUid()
+ "/" + Binder.getCallingPid();
@@ -4265,6 +4269,115 @@ public class AudioService extends IAudioService.Stub
restoreDeviceVolumeBehavior();
}
private static final int[] VALID_COMMUNICATION_DEVICE_TYPES = {
AudioDeviceInfo.TYPE_BUILTIN_SPEAKER,
AudioDeviceInfo.TYPE_BLUETOOTH_SCO,
AudioDeviceInfo.TYPE_WIRED_HEADSET,
AudioDeviceInfo.TYPE_USB_HEADSET,
AudioDeviceInfo.TYPE_BUILTIN_EARPIECE,
AudioDeviceInfo.TYPE_WIRED_HEADPHONES,
AudioDeviceInfo.TYPE_HEARING_AID,
AudioDeviceInfo.TYPE_BLE_HEADSET,
AudioDeviceInfo.TYPE_USB_DEVICE,
AudioDeviceInfo.TYPE_BLE_SPEAKER,
AudioDeviceInfo.TYPE_LINE_ANALOG,
AudioDeviceInfo.TYPE_HDMI,
AudioDeviceInfo.TYPE_AUX_LINE
};
private boolean isValidCommunicationDevice(AudioDeviceInfo device) {
for (int type : VALID_COMMUNICATION_DEVICE_TYPES) {
if (device.getType() == type) {
return true;
}
}
return false;
}
/** @see AudioManager#setDeviceForCommunication(int) */
public boolean setDeviceForCommunication(IBinder cb, int portId) {
final int uid = Binder.getCallingUid();
final int pid = Binder.getCallingPid();
AudioDeviceInfo device = null;
if (portId != 0) {
device = AudioManager.getDeviceForPortId(portId, AudioManager.GET_DEVICES_OUTPUTS);
if (device == null) {
throw new IllegalArgumentException("invalid portID " + portId);
}
if (!isValidCommunicationDevice(device)) {
throw new IllegalArgumentException("invalid device type " + device.getType());
}
}
final String eventSource = new StringBuilder("setDeviceForCommunication(")
.append(") from u/pid:").append(uid).append("/")
.append(pid).toString();
int deviceType = AudioSystem.DEVICE_OUT_DEFAULT;
String deviceAddress = null;
if (device != null) {
deviceType = device.getPort().type();
deviceAddress = device.getAddress();
} else {
AudioDeviceInfo curDevice = mDeviceBroker.getDeviceForCommunication();
if (curDevice != null) {
deviceType = curDevice.getPort().type();
deviceAddress = curDevice.getAddress();
}
}
// do not log metrics if clearing communication device while no communication device
// was selected
if (deviceType != AudioSystem.DEVICE_OUT_DEFAULT) {
new MediaMetrics.Item(MediaMetrics.Name.AUDIO_DEVICE
+ MediaMetrics.SEPARATOR + "setDeviceForCommunication")
.set(MediaMetrics.Property.DEVICE,
AudioSystem.getDeviceName(deviceType))
.set(MediaMetrics.Property.ADDRESS, deviceAddress)
.set(MediaMetrics.Property.STATE, device != null
? MediaMetrics.Value.CONNECTED : MediaMetrics.Value.DISCONNECTED)
.record();
}
final long ident = Binder.clearCallingIdentity();
boolean status =
mDeviceBroker.setDeviceForCommunication(cb, pid, device, eventSource);
Binder.restoreCallingIdentity(ident);
return status;
}
/** @see AudioManager#getDeviceForCommunication() */
public int getDeviceForCommunication() {
final long ident = Binder.clearCallingIdentity();
AudioDeviceInfo device = mDeviceBroker.getDeviceForCommunication();
Binder.restoreCallingIdentity(ident);
if (device == null) {
return 0;
}
return device.getId();
}
/** @see AudioManager#addOnCommunicationDeviceChangedListener(
* Executor, AudioManager.OnCommunicationDeviceChangedListener)
*/
public void registerCommunicationDeviceDispatcher(
@Nullable ICommunicationDeviceDispatcher dispatcher) {
if (dispatcher == null) {
return;
}
mDeviceBroker.registerCommunicationDeviceDispatcher(dispatcher);
}
/** @see AudioManager#removeOnCommunicationDeviceChangedListener(
* AudioManager.OnCommunicationDeviceChangedListener)
*/
public void unregisterCommunicationDeviceDispatcher(
@Nullable ICommunicationDeviceDispatcher dispatcher) {
if (dispatcher == null) {
return;
}
mDeviceBroker.unregisterCommunicationDeviceDispatcher(dispatcher);
}
/** @see AudioManager#setSpeakerphoneOn(boolean) */
public void setSpeakerphoneOn(IBinder cb, boolean on) {
if (!checkAudioSettingsPermission("setSpeakerphoneOn()")) {
@@ -4274,10 +4387,10 @@ public class AudioService extends IAudioService.Stub
// for logging only
final int uid = Binder.getCallingUid();
final int pid = Binder.getCallingPid();
final String eventSource = new StringBuilder("setSpeakerphoneOn(").append(on)
.append(") from u/pid:").append(uid).append("/")
.append(pid).toString();
final boolean stateChanged = mDeviceBroker.setSpeakerphoneOn(cb, pid, on, eventSource);
new MediaMetrics.Item(MediaMetrics.Name.AUDIO_DEVICE
+ MediaMetrics.SEPARATOR + "setSpeakerphoneOn")
.setUid(uid)
@@ -4285,17 +4398,9 @@ public class AudioService extends IAudioService.Stub
.set(MediaMetrics.Property.STATE, on
? MediaMetrics.Value.ON : MediaMetrics.Value.OFF)
.record();
if (stateChanged) {
final long ident = Binder.clearCallingIdentity();
try {
mContext.sendBroadcastAsUser(
new Intent(AudioManager.ACTION_SPEAKERPHONE_STATE_CHANGED)
.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY), UserHandle.ALL);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
final long ident = Binder.clearCallingIdentity();
mDeviceBroker.setSpeakerphoneOn(cb, pid, on, eventSource);
Binder.restoreCallingIdentity(ident);
}
/** @see AudioManager#isSpeakerphoneOn() */
@@ -4303,6 +4408,11 @@ public class AudioService extends IAudioService.Stub
return mDeviceBroker.isSpeakerphoneOn();
}
/** BT SCO audio state seen by apps using the deprecated API setBluetoothScoOn().
* @see isBluetoothScoOn() */
private boolean mBtScoOnByApp;
/** @see AudioManager#setBluetoothScoOn(boolean) */
public void setBluetoothScoOn(boolean on) {
if (!checkAudioSettingsPermission("setBluetoothScoOn()")) {
@@ -4311,7 +4421,7 @@ public class AudioService extends IAudioService.Stub
// Only enable calls from system components
if (UserHandle.getCallingAppId() >= FIRST_APPLICATION_UID) {
mDeviceBroker.setBluetoothScoOnByApp(on);
mBtScoOnByApp = on;
return;
}
@@ -4337,7 +4447,7 @@ public class AudioService extends IAudioService.Stub
* Note that it doesn't report internal state, but state seen by apps (which may have
* called setBluetoothScoOn() */
public boolean isBluetoothScoOn() {
return mDeviceBroker.isBluetoothScoOnForApp();
return mBtScoOnByApp || mDeviceBroker.isBluetoothScoOn();
}
// TODO investigate internal users due to deprecation of SDK API
@@ -4384,7 +4494,7 @@ public class AudioService extends IAudioService.Stub
.set(MediaMetrics.Property.SCO_AUDIO_MODE,
BtHelper.scoAudioModeToString(scoAudioMode))
.record();
startBluetoothScoInt(cb, scoAudioMode, eventSource);
startBluetoothScoInt(cb, pid, scoAudioMode, eventSource);
}
@@ -4403,10 +4513,10 @@ public class AudioService extends IAudioService.Stub
.set(MediaMetrics.Property.SCO_AUDIO_MODE,
BtHelper.scoAudioModeToString(BtHelper.SCO_MODE_VIRTUAL_CALL))
.record();
startBluetoothScoInt(cb, BtHelper.SCO_MODE_VIRTUAL_CALL, eventSource);
startBluetoothScoInt(cb, pid, BtHelper.SCO_MODE_VIRTUAL_CALL, eventSource);
}
void startBluetoothScoInt(IBinder cb, int scoAudioMode, @NonNull String eventSource) {
void startBluetoothScoInt(IBinder cb, int pid, int scoAudioMode, @NonNull String eventSource) {
MediaMetrics.Item mmi = new MediaMetrics.Item(MediaMetrics.Name.AUDIO_BLUETOOTH)
.set(MediaMetrics.Property.EVENT, "startBluetoothScoInt")
.set(MediaMetrics.Property.SCO_AUDIO_MODE,
@@ -4417,9 +4527,9 @@ public class AudioService extends IAudioService.Stub
mmi.set(MediaMetrics.Property.EARLY_RETURN, "permission or systemReady").record();
return;
}
synchronized (mDeviceBroker.mSetModeLock) {
mDeviceBroker.startBluetoothScoForClient_Sync(cb, scoAudioMode, eventSource);
}
final long ident = Binder.clearCallingIdentity();
mDeviceBroker.startBluetoothScoForClient(cb, pid, scoAudioMode, eventSource);
Binder.restoreCallingIdentity(ident);
mmi.record();
}
@@ -4434,9 +4544,9 @@ public class AudioService extends IAudioService.Stub
final String eventSource = new StringBuilder("stopBluetoothSco()")
.append(") from u/pid:").append(uid).append("/")
.append(pid).toString();
synchronized (mDeviceBroker.mSetModeLock) {
mDeviceBroker.stopBluetoothScoForClient_Sync(cb, eventSource);
}
final long ident = Binder.clearCallingIdentity();
mDeviceBroker.stopBluetoothScoForClient(cb, pid, eventSource);
Binder.restoreCallingIdentity(ident);
new MediaMetrics.Item(MediaMetrics.Name.AUDIO_BLUETOOTH)
.setUid(uid)
.setPid(pid)
@@ -4862,8 +4972,7 @@ public class AudioService extends IAudioService.Stub
switch (mPlatformType) {
case AudioSystem.PLATFORM_VOICE:
if (isInCommunication()) {
if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION)
== AudioSystem.FORCE_BT_SCO) {
if (mDeviceBroker.isBluetoothScoOn()) {
// Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO...");
return AudioSystem.STREAM_BLUETOOTH_SCO;
} else {
@@ -4899,8 +5008,7 @@ public class AudioService extends IAudioService.Stub
}
default:
if (isInCommunication()) {
if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION)
== AudioSystem.FORCE_BT_SCO) {
if (mDeviceBroker.isBluetoothScoOn()) {
if (DEBUG_VOL) Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO");
return AudioSystem.STREAM_BLUETOOTH_SCO;
} else {
@@ -7670,6 +7778,7 @@ public class AudioService extends IAudioService.Stub
pw.print(" mHasVibrator="); pw.println(mHasVibrator);
pw.print(" mVolumePolicy="); pw.println(mVolumePolicy);
pw.print(" mAvrcpAbsVolSupported="); pw.println(mAvrcpAbsVolSupported);
pw.print(" mBtScoOnByApp="); pw.println(mBtScoOnByApp);
pw.print(" mIsSingleVolume="); pw.println(mIsSingleVolume);
pw.print(" mUseFixedVolume="); pw.println(mUseFixedVolume);
pw.print(" mFixedVolumeDevices="); pw.println(dumpDeviceTypes(mFixedVolumeDevices));

497
services/core/java/com/android/server/audio/BtHelper.java
View File

@@ -27,11 +27,10 @@ import android.bluetooth.BluetoothHeadset;
import android.bluetooth.BluetoothHearingAid;
import android.bluetooth.BluetoothProfile;
import android.content.Intent;
import android.media.AudioDeviceAttributes;
import android.media.AudioManager;
import android.media.AudioSystem;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.Log;
@@ -39,9 +38,7 @@ import android.util.Log;
import com.android.internal.annotations.GuardedBy;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Objects;
/**
@@ -58,10 +55,6 @@ public class BtHelper {
mDeviceBroker = broker;
}
// List of clients having issued a SCO start request
@GuardedBy("BtHelper.this")
private final @NonNull ArrayList<ScoClient> mScoClients = new ArrayList<ScoClient>();
// BluetoothHeadset API to control SCO connection
private @Nullable BluetoothHeadset mBluetoothHeadset;
@@ -301,6 +294,8 @@ public class BtHelper {
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void receiveBtEvent(Intent intent) {
final String action = intent.getAction();
Log.i(TAG, "receiveBtEvent action: " + action + " mScoAudioState: " + mScoAudioState);
if (action.equals(BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED)) {
BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
setBtScoActiveDevice(btDevice);
@@ -308,20 +303,16 @@ public class BtHelper {
boolean broadcast = false;
int scoAudioState = AudioManager.SCO_AUDIO_STATE_ERROR;
int btState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1);
// broadcast intent if the connection was initated by AudioService
if (!mScoClients.isEmpty()
&& (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL
|| mScoAudioState == SCO_STATE_ACTIVATE_REQ
|| mScoAudioState == SCO_STATE_DEACTIVATE_REQ
|| mScoAudioState == SCO_STATE_DEACTIVATING)) {
broadcast = true;
}
Log.i(TAG, "receiveBtEvent ACTION_AUDIO_STATE_CHANGED: " + btState);
switch (btState) {
case BluetoothHeadset.STATE_AUDIO_CONNECTED:
scoAudioState = AudioManager.SCO_AUDIO_STATE_CONNECTED;
if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL
&& mScoAudioState != SCO_STATE_DEACTIVATE_REQ) {
mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL;
} else if (mDeviceBroker.isBluetoothScoRequested()) {
// broadcast intent if the connection was initated by AudioService
broadcast = true;
}
mDeviceBroker.setBluetoothScoOn(true, "BtHelper.receiveBtEvent");
break;
@@ -333,21 +324,21 @@ public class BtHelper {
// notified by requestScoState() setting state to SCO_STATE_ACTIVATE_REQ.
// 2) If audio was connected then disconnected via Bluetooth APIs and
// we still have pending activation requests by apps: this is indicated by
// state SCO_STATE_ACTIVE_EXTERNAL and the mScoClients list not empty.
// state SCO_STATE_ACTIVE_EXTERNAL and BT SCO is requested.
if (mScoAudioState == SCO_STATE_ACTIVATE_REQ
|| (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL
&& !mScoClients.isEmpty())) {
&& mDeviceBroker.isBluetoothScoRequested())) {
if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null
&& connectBluetoothScoAudioHelper(mBluetoothHeadset,
mBluetoothHeadsetDevice, mScoAudioMode)) {
mScoAudioState = SCO_STATE_ACTIVE_INTERNAL;
broadcast = false;
scoAudioState = AudioManager.SCO_AUDIO_STATE_CONNECTING;
broadcast = true;
break;
}
}
// Tear down SCO if disconnected from external
if (mScoAudioState == SCO_STATE_DEACTIVATING) {
clearAllScoClients(0, false);
if (mScoAudioState != SCO_STATE_ACTIVE_EXTERNAL) {
broadcast = true;
}
mScoAudioState = SCO_STATE_INACTIVE;
break;
@@ -356,11 +347,8 @@ public class BtHelper {
&& mScoAudioState != SCO_STATE_DEACTIVATE_REQ) {
mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL;
}
broadcast = false;
break;
default:
// do not broadcast CONNECTING or invalid state
broadcast = false;
break;
}
if (broadcast) {
@@ -386,81 +374,19 @@ public class BtHelper {
== BluetoothHeadset.STATE_AUDIO_CONNECTED;
}
/**
* Disconnect all SCO connections started by {@link AudioManager} except those started by
* {@param exceptPid}
*
* @param exceptPid pid whose SCO connections through {@link AudioManager} should be kept
*/
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void disconnectBluetoothSco(int exceptPid) {
checkScoAudioState();
if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL) {
return;
}
clearAllScoClients(exceptPid, true);
}
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void startBluetoothScoForClient(IBinder cb, int scoAudioMode,
/*package*/ synchronized boolean startBluetoothSco(int scoAudioMode,
@NonNull String eventSource) {
ScoClient client = getScoClient(cb, true);
// The calling identity must be cleared before calling ScoClient.incCount().
// inCount() calls requestScoState() which in turn can call BluetoothHeadset APIs
// and this must be done on behalf of system server to make sure permissions are granted.
// The caller identity must be cleared after getScoClient() because it is needed if a new
// client is created.
final long ident = Binder.clearCallingIdentity();
try {
AudioService.sDeviceLogger.log(new AudioEventLogger.StringEvent(eventSource));
client.requestScoState(BluetoothHeadset.STATE_AUDIO_CONNECTED, scoAudioMode);
} catch (NullPointerException e) {
Log.e(TAG, "Null ScoClient", e);
}
Binder.restoreCallingIdentity(ident);
}
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void stopBluetoothScoForClient(IBinder cb,
@NonNull String eventSource) {
ScoClient client = getScoClient(cb, false);
// The calling identity must be cleared before calling ScoClient.decCount().
// decCount() calls requestScoState() which in turn can call BluetoothHeadset APIs
// and this must be done on behalf of system server to make sure permissions are granted.
final long ident = Binder.clearCallingIdentity();
if (client != null) {
stopAndRemoveClient(client, eventSource);
}
Binder.restoreCallingIdentity(ident);
}
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void stopBluetoothScoForPid(int pid) {
ScoClient client = getScoClientForPid(pid);
if (client == null) {
return;
}
final String eventSource = new StringBuilder("stopBluetoothScoForPid(")
.append(pid).append(")").toString();
stopAndRemoveClient(client, eventSource);
}
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
// @GuardedBy("BtHelper.this")
private void stopAndRemoveClient(ScoClient client, @NonNull String eventSource) {
AudioService.sDeviceLogger.log(new AudioEventLogger.StringEvent(eventSource));
client.requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED,
SCO_MODE_VIRTUAL_CALL);
// If a disconnection is pending, the client will be removed when clearAllScoClients()
// is called form receiveBtEvent()
if (mScoAudioState != SCO_STATE_DEACTIVATE_REQ
&& mScoAudioState != SCO_STATE_DEACTIVATING) {
client.remove(false /*stop */, true /*unregister*/);
}
return requestScoState(BluetoothHeadset.STATE_AUDIO_CONNECTED, scoAudioMode);
}
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized boolean stopBluetoothSco(@NonNull String eventSource) {
AudioService.sDeviceLogger.log(new AudioEventLogger.StringEvent(eventSource));
return requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED, SCO_MODE_VIRTUAL_CALL);
}
/*package*/ synchronized void setHearingAidVolume(int index, int streamType) {
@@ -507,7 +433,6 @@ public class BtHelper {
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void resetBluetoothSco() {
clearAllScoClients(0, false);
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
AudioSystem.setParameters("A2dpSuspended=false");
@@ -606,46 +531,64 @@ public class BtHelper {
mDeviceBroker.postBroadcastScoConnectionState(state);
}
private boolean handleBtScoActiveDeviceChange(BluetoothDevice btDevice, boolean isActive) {
if (btDevice == null) {
return true;
@Nullable AudioDeviceAttributes getHeadsetAudioDevice() {
if (mBluetoothHeadsetDevice == null) {
return null;
}
return btHeadsetDeviceToAudioDevice(mBluetoothHeadsetDevice);
}
private AudioDeviceAttributes btHeadsetDeviceToAudioDevice(BluetoothDevice btDevice) {
String address = btDevice.getAddress();
if (!BluetoothAdapter.checkBluetoothAddress(address)) {
address = "";
}
BluetoothClass btClass = btDevice.getBluetoothClass();
int inDevice = AudioSystem.DEVICE_IN_BLUETOOTH_SCO_HEADSET;
int[] outDeviceTypes = {
AudioSystem.DEVICE_OUT_BLUETOOTH_SCO,
AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT
};
int nativeType = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO;
if (btClass != null) {
switch (btClass.getDeviceClass()) {
case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET:
case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE:
outDeviceTypes = new int[] { AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET };
nativeType = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
break;
case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
outDeviceTypes = new int[] { AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT };
nativeType = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
break;
}
}
if (!BluetoothAdapter.checkBluetoothAddress(address)) {
address = "";
if (AudioService.DEBUG_DEVICES) {
Log.i(TAG, "btHeadsetDeviceToAudioDevice btDevice: " + btDevice
+ " btClass: " + (btClass == null ? "Unknown" : btClass)
+ " nativeType: " + nativeType + " address: " + address);
}
return new AudioDeviceAttributes(nativeType, address);
}
private boolean handleBtScoActiveDeviceChange(BluetoothDevice btDevice, boolean isActive) {
if (btDevice == null) {
return true;
}
int inDevice = AudioSystem.DEVICE_IN_BLUETOOTH_SCO_HEADSET;
AudioDeviceAttributes audioDevice = btHeadsetDeviceToAudioDevice(btDevice);
String btDeviceName = getName(btDevice);
boolean result = false;
if (isActive) {
result |= mDeviceBroker.handleDeviceConnection(
isActive, outDeviceTypes[0], address, btDeviceName);
result |= mDeviceBroker.handleDeviceConnection(isActive, audioDevice.getInternalType(),
audioDevice.getAddress(), btDeviceName);
} else {
int[] outDeviceTypes = {
AudioSystem.DEVICE_OUT_BLUETOOTH_SCO,
AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT
};
for (int outDeviceType : outDeviceTypes) {
result |= mDeviceBroker.handleDeviceConnection(
isActive, outDeviceType, address, btDeviceName);
isActive, outDeviceType, audioDevice.getAddress(), btDeviceName);
}
}
// handleDeviceConnection() && result to make sure the method get executed
result = mDeviceBroker.handleDeviceConnection(
isActive, inDevice, address, btDeviceName) && result;
isActive, inDevice, audioDevice.getAddress(), btDeviceName) && result;
return result;
}
@@ -733,195 +676,122 @@ public class BtHelper {
};
//----------------------------------------------------------------------
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
/*package*/ synchronized void scoClientDied(Object obj) {
final ScoClient client = (ScoClient) obj;
client.remove(true /*stop*/, false /*unregister*/);
Log.w(TAG, "SCO client died");
}
private class ScoClient implements IBinder.DeathRecipient {
private IBinder mCb; // To be notified of client's death
private int mCreatorPid;
ScoClient(IBinder cb) {
mCb = cb;
mCreatorPid = Binder.getCallingPid();
}
public void registerDeathRecipient() {
try {
mCb.linkToDeath(this, 0);
} catch (RemoteException e) {
Log.w(TAG, "ScoClient could not link to " + mCb + " binder death");
}
}
public void unregisterDeathRecipient() {
try {
mCb.unlinkToDeath(this, 0);
} catch (NoSuchElementException e) {
Log.w(TAG, "ScoClient could not not unregistered to binder");
}
}
@Override
public void binderDied() {
// process this from DeviceBroker's message queue to take the right locks since
// this event can impact SCO mode and requires querying audio mode stack
mDeviceBroker.postScoClientDied(this);
}
IBinder getBinder() {
return mCb;
}
int getPid() {
return mCreatorPid;
}
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
//@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
@GuardedBy("BtHelper.this")
private boolean requestScoState(int state, int scoAudioMode) {
checkScoAudioState();
if (mScoClients.size() != 1) {
Log.i(TAG, "requestScoState: state=" + state + ", scoAudioMode=" + scoAudioMode
+ ", num SCO clients=" + mScoClients.size());
return true;
}
if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) {
// Make sure that the state transitions to CONNECTING even if we cannot initiate
// the connection.
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTING);
// Accept SCO audio activation only in NORMAL audio mode or if the mode is
// currently controlled by the same client process.
final int modeOwnerPid = mDeviceBroker.getModeOwnerPid();
if (modeOwnerPid != 0 && (modeOwnerPid != mCreatorPid)) {
Log.w(TAG, "requestScoState: audio mode is not NORMAL and modeOwnerPid "
+ modeOwnerPid + " != creatorPid " + mCreatorPid);
//@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
@GuardedBy("BtHelper.this")
private boolean requestScoState(int state, int scoAudioMode) {
checkScoAudioState();
if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) {
// Make sure that the state transitions to CONNECTING even if we cannot initiate
// the connection.
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTING);
switch (mScoAudioState) {
case SCO_STATE_INACTIVE:
mScoAudioMode = scoAudioMode;
if (scoAudioMode == SCO_MODE_UNDEFINED) {
mScoAudioMode = SCO_MODE_VIRTUAL_CALL;
if (mBluetoothHeadsetDevice != null) {
mScoAudioMode = Settings.Global.getInt(
mDeviceBroker.getContentResolver(),
"bluetooth_sco_channel_"
+ mBluetoothHeadsetDevice.getAddress(),
SCO_MODE_VIRTUAL_CALL);
if (mScoAudioMode > SCO_MODE_MAX || mScoAudioMode < 0) {
mScoAudioMode = SCO_MODE_VIRTUAL_CALL;
}
}
}
if (mBluetoothHeadset == null) {
if (getBluetoothHeadset()) {
mScoAudioState = SCO_STATE_ACTIVATE_REQ;
} else {
Log.w(TAG, "requestScoState: getBluetoothHeadset failed during"
+ " connection, mScoAudioMode=" + mScoAudioMode);
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
break;
}
if (mBluetoothHeadsetDevice == null) {
Log.w(TAG, "requestScoState: no active device while connecting,"
+ " mScoAudioMode=" + mScoAudioMode);
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
if (connectBluetoothScoAudioHelper(mBluetoothHeadset,
mBluetoothHeadsetDevice, mScoAudioMode)) {
mScoAudioState = SCO_STATE_ACTIVE_INTERNAL;
} else {
Log.w(TAG, "requestScoState: connect to "
+ mBluetoothHeadsetDevice
+ " failed, mScoAudioMode=" + mScoAudioMode);
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
break;
case SCO_STATE_DEACTIVATING:
mScoAudioState = SCO_STATE_ACTIVATE_REQ;
break;
case SCO_STATE_DEACTIVATE_REQ:
mScoAudioState = SCO_STATE_ACTIVE_INTERNAL;
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTED);
break;
case SCO_STATE_ACTIVE_INTERNAL:
Log.w(TAG, "requestScoState: already in ACTIVE mode, simply return");
break;
default:
Log.w(TAG, "requestScoState: failed to connect in state "
+ mScoAudioState + ", scoAudioMode=" + scoAudioMode);
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
switch (mScoAudioState) {
case SCO_STATE_INACTIVE:
mScoAudioMode = scoAudioMode;
if (scoAudioMode == SCO_MODE_UNDEFINED) {
mScoAudioMode = SCO_MODE_VIRTUAL_CALL;
if (mBluetoothHeadsetDevice != null) {
mScoAudioMode = Settings.Global.getInt(
mDeviceBroker.getContentResolver(),
"bluetooth_sco_channel_"
+ mBluetoothHeadsetDevice.getAddress(),
SCO_MODE_VIRTUAL_CALL);
if (mScoAudioMode > SCO_MODE_MAX || mScoAudioMode < 0) {
mScoAudioMode = SCO_MODE_VIRTUAL_CALL;
}
}
}
if (mBluetoothHeadset == null) {
if (getBluetoothHeadset()) {
mScoAudioState = SCO_STATE_ACTIVATE_REQ;
} else {
Log.w(TAG, "requestScoState: getBluetoothHeadset failed during"
+ " connection, mScoAudioMode=" + mScoAudioMode);
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
break;
}
if (mBluetoothHeadsetDevice == null) {
Log.w(TAG, "requestScoState: no active device while connecting,"
+ " mScoAudioMode=" + mScoAudioMode);
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
if (connectBluetoothScoAudioHelper(mBluetoothHeadset,
mBluetoothHeadsetDevice, mScoAudioMode)) {
mScoAudioState = SCO_STATE_ACTIVE_INTERNAL;
}
} else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED) {
switch (mScoAudioState) {
case SCO_STATE_ACTIVE_INTERNAL:
if (mBluetoothHeadset == null) {
if (getBluetoothHeadset()) {
mScoAudioState = SCO_STATE_DEACTIVATE_REQ;
} else {
Log.w(TAG, "requestScoState: connect to " + mBluetoothHeadsetDevice
+ " failed, mScoAudioMode=" + mScoAudioMode);
Log.w(TAG, "requestScoState: getBluetoothHeadset failed during"
+ " disconnection, mScoAudioMode=" + mScoAudioMode);
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
break;
case SCO_STATE_DEACTIVATING:
mScoAudioState = SCO_STATE_ACTIVATE_REQ;
break;
case SCO_STATE_DEACTIVATE_REQ:
mScoAudioState = SCO_STATE_ACTIVE_INTERNAL;
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTED);
break;
case SCO_STATE_ACTIVE_INTERNAL:
Log.w(TAG, "requestScoState: already in ACTIVE mode, simply return");
break;
default:
Log.w(TAG, "requestScoState: failed to connect in state "
+ mScoAudioState + ", scoAudioMode=" + scoAudioMode);
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
} else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED) {
switch (mScoAudioState) {
case SCO_STATE_ACTIVE_INTERNAL:
if (mBluetoothHeadset == null) {
if (getBluetoothHeadset()) {
mScoAudioState = SCO_STATE_DEACTIVATE_REQ;
} else {
Log.w(TAG, "requestScoState: getBluetoothHeadset failed during"
+ " disconnection, mScoAudioMode=" + mScoAudioMode);
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
break;
}
if (mBluetoothHeadsetDevice == null) {
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
break;
}
if (disconnectBluetoothScoAudioHelper(mBluetoothHeadset,
mBluetoothHeadsetDevice, mScoAudioMode)) {
mScoAudioState = SCO_STATE_DEACTIVATING;
} else {
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
}
break;
case SCO_STATE_ACTIVATE_REQ:
}
if (mBluetoothHeadsetDevice == null) {
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
break;
default:
Log.w(TAG, "requestScoState: failed to disconnect in state "
+ mScoAudioState + ", scoAudioMode=" + scoAudioMode);
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
}
if (disconnectBluetoothScoAudioHelper(mBluetoothHeadset,
mBluetoothHeadsetDevice, mScoAudioMode)) {
mScoAudioState = SCO_STATE_DEACTIVATING;
} else {
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(
AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
}
break;
case SCO_STATE_ACTIVATE_REQ:
mScoAudioState = SCO_STATE_INACTIVE;
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
break;
default:
Log.w(TAG, "requestScoState: failed to disconnect in state "
+ mScoAudioState + ", scoAudioMode=" + scoAudioMode);
broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED);
return false;
}
return true;
}
@GuardedBy("BtHelper.this")
void remove(boolean stop, boolean unregister) {
if (unregister) {
unregisterDeathRecipient();
}
if (stop) {
requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED,
SCO_MODE_VIRTUAL_CALL);
}
mScoClients.remove(this);
}
return true;
}
//-----------------------------------------------------
@@ -974,49 +844,6 @@ public class BtHelper {
}
}
@GuardedBy("BtHelper.this")
private ScoClient getScoClient(IBinder cb, boolean create) {
for (ScoClient existingClient : mScoClients) {
if (existingClient.getBinder() == cb) {
return existingClient;
}
}
if (create) {
ScoClient newClient = new ScoClient(cb);
newClient.registerDeathRecipient();
mScoClients.add(newClient);
return newClient;
}
return null;
}
@GuardedBy("BtHelper.this")
private ScoClient getScoClientForPid(int pid) {
for (ScoClient cl : mScoClients) {
if (cl.getPid() == pid) {
return cl;
}
}
return null;
}
// @GuardedBy("AudioDeviceBroker.mSetModeLock")
//@GuardedBy("AudioDeviceBroker.mDeviceStateLock")
@GuardedBy("BtHelper.this")
private void clearAllScoClients(int exceptPid, boolean stopSco) {
final ArrayList<ScoClient> clients = new ArrayList<ScoClient>();
for (ScoClient cl : mScoClients) {
if (cl.getPid() != exceptPid) {
clients.add(cl);
}
}
for (ScoClient cl : clients) {
cl.remove(stopSco, true /*unregister*/);
}
}
private boolean getBluetoothHeadset() {
boolean result = false;
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
@@ -1062,10 +889,6 @@ public class BtHelper {
pw.println(prefix + "mBluetoothHeadsetDevice: " + mBluetoothHeadsetDevice);
pw.println(prefix + "mScoAudioState: " + scoAudioStateToString(mScoAudioState));
pw.println(prefix + "mScoAudioMode: " + scoAudioModeToString(mScoAudioMode));
pw.println(prefix + "Sco clients:");
mScoClients.forEach((cl) -> {
pw.println(" " + prefix + "pid: " + cl.getPid() + " cb: " + cl.getBinder()); });
pw.println("\n" + prefix + "mHearingAid: " + mHearingAid);
pw.println(prefix + "mA2dp: " + mA2dp);
pw.println(prefix + "mAvrcpAbsVolSupported: " + mAvrcpAbsVolSupported);