AudioService.java revision 2d8dab5a549b25b6f36df4614d7c0166d4d099e2
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.media; 18 19import static android.Manifest.permission.REMOTE_AUDIO_PLAYBACK; 20import static android.media.AudioManager.RINGER_MODE_NORMAL; 21import static android.media.AudioManager.RINGER_MODE_SILENT; 22import static android.media.AudioManager.RINGER_MODE_VIBRATE; 23 24import android.app.Activity; 25import android.app.ActivityManagerNative; 26import android.app.KeyguardManager; 27import android.app.PendingIntent; 28import android.app.PendingIntent.CanceledException; 29import android.app.PendingIntent.OnFinished; 30import android.bluetooth.BluetoothA2dp; 31import android.bluetooth.BluetoothAdapter; 32import android.bluetooth.BluetoothClass; 33import android.bluetooth.BluetoothDevice; 34import android.bluetooth.BluetoothHeadset; 35import android.bluetooth.BluetoothProfile; 36import android.content.ActivityNotFoundException; 37import android.content.BroadcastReceiver; 38import android.content.ComponentName; 39import android.content.ContentResolver; 40import android.content.Context; 41import android.content.Intent; 42import android.content.IntentFilter; 43import android.content.pm.PackageManager; 44import android.content.res.Configuration; 45import android.database.ContentObserver; 46import android.media.MediaPlayer.OnCompletionListener; 47import android.media.MediaPlayer.OnErrorListener; 48import android.os.Binder; 49import android.os.Bundle; 50import android.os.Environment; 51import android.os.Handler; 52import android.os.IBinder; 53import android.os.Looper; 54import android.os.Message; 55import android.os.PowerManager; 56import android.os.RemoteException; 57import android.os.ServiceManager; 58import android.os.SystemProperties; 59import android.os.Vibrator; 60import android.provider.Settings; 61import android.provider.Settings.System; 62import android.speech.RecognizerIntent; 63import android.telephony.PhoneStateListener; 64import android.telephony.TelephonyManager; 65import android.util.Log; 66import android.view.KeyEvent; 67import android.view.VolumePanel; 68 69import com.android.internal.telephony.ITelephony; 70 71import java.io.FileDescriptor; 72import java.io.IOException; 73import java.io.PrintWriter; 74import java.util.ArrayList; 75import java.util.concurrent.ConcurrentHashMap; 76import java.util.HashMap; 77import java.util.Iterator; 78import java.util.List; 79import java.util.Map; 80import java.util.NoSuchElementException; 81import java.util.Set; 82import java.util.Stack; 83 84/** 85 * The implementation of the volume manager service. 86 * <p> 87 * This implementation focuses on delivering a responsive UI. Most methods are 88 * asynchronous to external calls. For example, the task of setting a volume 89 * will update our internal state, but in a separate thread will set the system 90 * volume and later persist to the database. Similarly, setting the ringer mode 91 * will update the state and broadcast a change and in a separate thread later 92 * persist the ringer mode. 93 * 94 * @hide 95 */ 96public class AudioService extends IAudioService.Stub implements OnFinished { 97 98 private static final String TAG = "AudioService"; 99 100 /** Debug remote control client/display feature */ 101 protected static final boolean DEBUG_RC = false; 102 103 /** How long to delay before persisting a change in volume/ringer mode. */ 104 private static final int PERSIST_DELAY = 500; 105 106 private Context mContext; 107 private ContentResolver mContentResolver; 108 private boolean mVoiceCapable; 109 110 /** The UI */ 111 private VolumePanel mVolumePanel; 112 113 // sendMsg() flags 114 /** If the msg is already queued, replace it with this one. */ 115 private static final int SENDMSG_REPLACE = 0; 116 /** If the msg is already queued, ignore this one and leave the old. */ 117 private static final int SENDMSG_NOOP = 1; 118 /** If the msg is already queued, queue this one and leave the old. */ 119 private static final int SENDMSG_QUEUE = 2; 120 121 // AudioHandler message.whats 122 private static final int MSG_SET_DEVICE_VOLUME = 0; 123 private static final int MSG_PERSIST_VOLUME = 1; 124 private static final int MSG_PERSIST_MASTER_VOLUME = 2; 125 private static final int MSG_PERSIST_RINGER_MODE = 3; 126 private static final int MSG_MEDIA_SERVER_DIED = 4; 127 private static final int MSG_MEDIA_SERVER_STARTED = 5; 128 private static final int MSG_PLAY_SOUND_EFFECT = 6; 129 private static final int MSG_BTA2DP_DOCK_TIMEOUT = 7; 130 private static final int MSG_LOAD_SOUND_EFFECTS = 8; 131 private static final int MSG_SET_FORCE_USE = 9; 132 private static final int MSG_PERSIST_MEDIABUTTONRECEIVER = 10; 133 private static final int MSG_BT_HEADSET_CNCT_FAILED = 11; 134 private static final int MSG_RCDISPLAY_CLEAR = 12; 135 private static final int MSG_RCDISPLAY_UPDATE = 13; 136 private static final int MSG_SET_ALL_VOLUMES = 14; 137 private static final int MSG_PERSIST_MASTER_VOLUME_MUTE = 15; 138 private static final int MSG_SET_WIRED_DEVICE_CONNECTION_STATE = 16;//handled under wakelock 139 private static final int MSG_SET_A2DP_CONNECTION_STATE = 17; //handled under wakelock 140 141 142 // flags for MSG_PERSIST_VOLUME indicating if current and/or last audible volume should be 143 // persisted 144 private static final int PERSIST_CURRENT = 0x1; 145 private static final int PERSIST_LAST_AUDIBLE = 0x2; 146 147 private static final int BTA2DP_DOCK_TIMEOUT_MILLIS = 8000; 148 // Timeout for connection to bluetooth headset service 149 private static final int BT_HEADSET_CNCT_TIMEOUT_MS = 3000; 150 151 /** @see AudioSystemThread */ 152 private AudioSystemThread mAudioSystemThread; 153 /** @see AudioHandler */ 154 private AudioHandler mAudioHandler; 155 /** @see VolumeStreamState */ 156 private VolumeStreamState[] mStreamStates; 157 private SettingsObserver mSettingsObserver; 158 159 private int mMode; 160 // protects mRingerMode 161 private final Object mSettingsLock = new Object(); 162 163 private boolean mMediaServerOk; 164 165 private SoundPool mSoundPool; 166 private final Object mSoundEffectsLock = new Object(); 167 private static final int NUM_SOUNDPOOL_CHANNELS = 4; 168 private static final int SOUND_EFFECT_VOLUME = 1000; 169 170 // Internally master volume is a float in the 0.0 - 1.0 range, 171 // but to support integer based AudioManager API we translate it to 0 - 100 172 private static final int MAX_MASTER_VOLUME = 100; 173 174 // Maximum volume adjust steps allowed in a single batch call. 175 private static final int MAX_BATCH_VOLUME_ADJUST_STEPS = 4; 176 177 /* Sound effect file names */ 178 private static final String SOUND_EFFECTS_PATH = "/media/audio/ui/"; 179 private static final String[] SOUND_EFFECT_FILES = new String[] { 180 "Effect_Tick.ogg", 181 "KeypressStandard.ogg", 182 "KeypressSpacebar.ogg", 183 "KeypressDelete.ogg", 184 "KeypressReturn.ogg" 185 }; 186 187 /* Sound effect file name mapping sound effect id (AudioManager.FX_xxx) to 188 * file index in SOUND_EFFECT_FILES[] (first column) and indicating if effect 189 * uses soundpool (second column) */ 190 private final int[][] SOUND_EFFECT_FILES_MAP = new int[][] { 191 {0, -1}, // FX_KEY_CLICK 192 {0, -1}, // FX_FOCUS_NAVIGATION_UP 193 {0, -1}, // FX_FOCUS_NAVIGATION_DOWN 194 {0, -1}, // FX_FOCUS_NAVIGATION_LEFT 195 {0, -1}, // FX_FOCUS_NAVIGATION_RIGHT 196 {1, -1}, // FX_KEYPRESS_STANDARD 197 {2, -1}, // FX_KEYPRESS_SPACEBAR 198 {3, -1}, // FX_FOCUS_DELETE 199 {4, -1} // FX_FOCUS_RETURN 200 }; 201 202 /** @hide Maximum volume index values for audio streams */ 203 private final int[] MAX_STREAM_VOLUME = new int[] { 204 5, // STREAM_VOICE_CALL 205 7, // STREAM_SYSTEM 206 7, // STREAM_RING 207 15, // STREAM_MUSIC 208 7, // STREAM_ALARM 209 7, // STREAM_NOTIFICATION 210 15, // STREAM_BLUETOOTH_SCO 211 7, // STREAM_SYSTEM_ENFORCED 212 15, // STREAM_DTMF 213 15 // STREAM_TTS 214 }; 215 /* mStreamVolumeAlias[] indicates for each stream if it uses the volume settings 216 * of another stream: This avoids multiplying the volume settings for hidden 217 * stream types that follow other stream behavior for volume settings 218 * NOTE: do not create loops in aliases! 219 * Some streams alias to different streams according to device category (phone or tablet) or 220 * use case (in call s off call...).See updateStreamVolumeAlias() for more details 221 * mStreamVolumeAlias contains the default aliases for a voice capable device (phone) and 222 * STREAM_VOLUME_ALIAS_NON_VOICE for a non voice capable device (tablet).*/ 223 private final int[] STREAM_VOLUME_ALIAS = new int[] { 224 AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL 225 AudioSystem.STREAM_RING, // STREAM_SYSTEM 226 AudioSystem.STREAM_RING, // STREAM_RING 227 AudioSystem.STREAM_MUSIC, // STREAM_MUSIC 228 AudioSystem.STREAM_ALARM, // STREAM_ALARM 229 AudioSystem.STREAM_RING, // STREAM_NOTIFICATION 230 AudioSystem.STREAM_BLUETOOTH_SCO, // STREAM_BLUETOOTH_SCO 231 AudioSystem.STREAM_RING, // STREAM_SYSTEM_ENFORCED 232 AudioSystem.STREAM_RING, // STREAM_DTMF 233 AudioSystem.STREAM_MUSIC // STREAM_TTS 234 }; 235 private final int[] STREAM_VOLUME_ALIAS_NON_VOICE = new int[] { 236 AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL 237 AudioSystem.STREAM_MUSIC, // STREAM_SYSTEM 238 AudioSystem.STREAM_RING, // STREAM_RING 239 AudioSystem.STREAM_MUSIC, // STREAM_MUSIC 240 AudioSystem.STREAM_ALARM, // STREAM_ALARM 241 AudioSystem.STREAM_RING, // STREAM_NOTIFICATION 242 AudioSystem.STREAM_BLUETOOTH_SCO, // STREAM_BLUETOOTH_SCO 243 AudioSystem.STREAM_MUSIC, // STREAM_SYSTEM_ENFORCED 244 AudioSystem.STREAM_MUSIC, // STREAM_DTMF 245 AudioSystem.STREAM_MUSIC // STREAM_TTS 246 }; 247 private int[] mStreamVolumeAlias; 248 249 // stream names used by dumpStreamStates() 250 private final String[] STREAM_NAMES = new String[] { 251 "STREAM_VOICE_CALL", 252 "STREAM_SYSTEM", 253 "STREAM_RING", 254 "STREAM_MUSIC", 255 "STREAM_ALARM", 256 "STREAM_NOTIFICATION", 257 "STREAM_BLUETOOTH_SCO", 258 "STREAM_SYSTEM_ENFORCED", 259 "STREAM_DTMF", 260 "STREAM_TTS" 261 }; 262 263 private final AudioSystem.ErrorCallback mAudioSystemCallback = new AudioSystem.ErrorCallback() { 264 public void onError(int error) { 265 switch (error) { 266 case AudioSystem.AUDIO_STATUS_SERVER_DIED: 267 if (mMediaServerOk) { 268 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SENDMSG_NOOP, 0, 0, 269 null, 1500); 270 mMediaServerOk = false; 271 } 272 break; 273 case AudioSystem.AUDIO_STATUS_OK: 274 if (!mMediaServerOk) { 275 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_STARTED, SENDMSG_NOOP, 0, 0, 276 null, 0); 277 mMediaServerOk = true; 278 } 279 break; 280 default: 281 break; 282 } 283 } 284 }; 285 286 /** 287 * Current ringer mode from one of {@link AudioManager#RINGER_MODE_NORMAL}, 288 * {@link AudioManager#RINGER_MODE_SILENT}, or 289 * {@link AudioManager#RINGER_MODE_VIBRATE}. 290 */ 291 // protected by mSettingsLock 292 private int mRingerMode; 293 294 /** @see System#MODE_RINGER_STREAMS_AFFECTED */ 295 private int mRingerModeAffectedStreams; 296 297 // Streams currently muted by ringer mode 298 private int mRingerModeMutedStreams; 299 300 /** @see System#MUTE_STREAMS_AFFECTED */ 301 private int mMuteAffectedStreams; 302 303 /** 304 * NOTE: setVibrateSetting(), getVibrateSetting(), shouldVibrate() are deprecated. 305 * mVibrateSetting is just maintained during deprecation period but vibration policy is 306 * now only controlled by mHasVibrator and mRingerMode 307 */ 308 private int mVibrateSetting; 309 310 // Is there a vibrator 311 private final boolean mHasVibrator; 312 313 // Broadcast receiver for device connections intent broadcasts 314 private final BroadcastReceiver mReceiver = new AudioServiceBroadcastReceiver(); 315 316 // Used to alter media button redirection when the phone is ringing. 317 private boolean mIsRinging = false; 318 319 // Devices currently connected 320 private final HashMap <Integer, String> mConnectedDevices = new HashMap <Integer, String>(); 321 322 // Forced device usage for communications 323 private int mForcedUseForComm; 324 325 // True if we have master volume support 326 private final boolean mUseMasterVolume; 327 328 private final int[] mMasterVolumeRamp; 329 330 // List of binder death handlers for setMode() client processes. 331 // The last process to have called setMode() is at the top of the list. 332 private final ArrayList <SetModeDeathHandler> mSetModeDeathHandlers = new ArrayList <SetModeDeathHandler>(); 333 334 // List of clients having issued a SCO start request 335 private final ArrayList <ScoClient> mScoClients = new ArrayList <ScoClient>(); 336 337 // BluetoothHeadset API to control SCO connection 338 private BluetoothHeadset mBluetoothHeadset; 339 340 // Bluetooth headset device 341 private BluetoothDevice mBluetoothHeadsetDevice; 342 343 // Indicate if SCO audio connection is currently active and if the initiator is 344 // audio service (internal) or bluetooth headset (external) 345 private int mScoAudioState; 346 // SCO audio state is not active 347 private static final int SCO_STATE_INACTIVE = 0; 348 // SCO audio activation request waiting for headset service to connect 349 private static final int SCO_STATE_ACTIVATE_REQ = 1; 350 // SCO audio state is active or starting due to a local request to start a virtual call 351 private static final int SCO_STATE_ACTIVE_INTERNAL = 3; 352 // SCO audio deactivation request waiting for headset service to connect 353 private static final int SCO_STATE_DEACTIVATE_REQ = 5; 354 355 // SCO audio state is active due to an action in BT handsfree (either voice recognition or 356 // in call audio) 357 private static final int SCO_STATE_ACTIVE_EXTERNAL = 2; 358 // Deactivation request for all SCO connections (initiated by audio mode change) 359 // waiting for headset service to connect 360 private static final int SCO_STATE_DEACTIVATE_EXT_REQ = 4; 361 362 // Current connection state indicated by bluetooth headset 363 private int mScoConnectionState; 364 365 // true if boot sequence has been completed 366 private boolean mBootCompleted; 367 // listener for SoundPool sample load completion indication 368 private SoundPoolCallback mSoundPoolCallBack; 369 // thread for SoundPool listener 370 private SoundPoolListenerThread mSoundPoolListenerThread; 371 // message looper for SoundPool listener 372 private Looper mSoundPoolLooper = null; 373 // default volume applied to sound played with playSoundEffect() 374 private static final int SOUND_EFFECT_DEFAULT_VOLUME_DB = 0; 375 // volume applied to sound played with playSoundEffect() read from ro.config.sound_fx_volume 376 private int SOUND_EFFECT_VOLUME_DB; 377 // getActiveStreamType() will return STREAM_NOTIFICATION during this period after a notification 378 // stopped 379 private static final int NOTIFICATION_VOLUME_DELAY_MS = 5000; 380 // previous volume adjustment direction received by checkForRingerModeChange() 381 private int mPrevVolDirection = AudioManager.ADJUST_SAME; 382 // Keyguard manager proxy 383 private KeyguardManager mKeyguardManager; 384 // mVolumeControlStream is set by VolumePanel to temporarily force the stream type which volume 385 // is controlled by Vol keys. 386 private int mVolumeControlStream = -1; 387 private final Object mForceControlStreamLock = new Object(); 388 // VolumePanel is currently the only client of forceVolumeControlStream() and runs in system 389 // server process so in theory it is not necessary to monitor the client death. 390 // However it is good to be ready for future evolutions. 391 private ForceControlStreamClient mForceControlStreamClient = null; 392 // Used to play ringtones outside system_server 393 private volatile IRingtonePlayer mRingtonePlayer; 394 395 private int mDeviceOrientation = Configuration.ORIENTATION_UNDEFINED; 396 397 // Request to override default use of A2DP for media. 398 private boolean mBluetoothA2dpEnabled; 399 private final Object mBluetoothA2dpEnabledLock = new Object(); 400 401 /////////////////////////////////////////////////////////////////////////// 402 // Construction 403 /////////////////////////////////////////////////////////////////////////// 404 405 /** @hide */ 406 public AudioService(Context context) { 407 mContext = context; 408 mContentResolver = context.getContentResolver(); 409 mVoiceCapable = mContext.getResources().getBoolean( 410 com.android.internal.R.bool.config_voice_capable); 411 412 PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 413 mMediaEventWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "handleMediaEvent"); 414 415 Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE); 416 mHasVibrator = vibrator == null ? false : vibrator.hasVibrator(); 417 418 // Intialized volume 419 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL] = SystemProperties.getInt( 420 "ro.config.vc_call_vol_steps", 421 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL]); 422 423 SOUND_EFFECT_VOLUME_DB = SystemProperties.getInt( 424 "ro.config.sound_fx_volume", 425 SOUND_EFFECT_DEFAULT_VOLUME_DB); 426 427 mVolumePanel = new VolumePanel(context, this); 428 mMode = AudioSystem.MODE_NORMAL; 429 mForcedUseForComm = AudioSystem.FORCE_NONE; 430 createAudioSystemThread(); 431 readPersistedSettings(); 432 mSettingsObserver = new SettingsObserver(); 433 updateStreamVolumeAlias(false /*updateVolumes*/); 434 createStreamStates(); 435 436 mMediaServerOk = true; 437 438 // Call setRingerModeInt() to apply correct mute 439 // state on streams affected by ringer mode. 440 mRingerModeMutedStreams = 0; 441 setRingerModeInt(getRingerMode(), false); 442 443 AudioSystem.setErrorCallback(mAudioSystemCallback); 444 445 // Register for device connection intent broadcasts. 446 IntentFilter intentFilter = 447 new IntentFilter(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED); 448 intentFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); 449 intentFilter.addAction(Intent.ACTION_DOCK_EVENT); 450 intentFilter.addAction(Intent.ACTION_USB_AUDIO_ACCESSORY_PLUG); 451 intentFilter.addAction(Intent.ACTION_USB_AUDIO_DEVICE_PLUG); 452 intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED); 453 intentFilter.addAction(Intent.ACTION_SCREEN_ON); 454 intentFilter.addAction(Intent.ACTION_SCREEN_OFF); 455 456 // Register a configuration change listener only if requested by system properties 457 // to monitor orientation changes (off by default) 458 if (SystemProperties.getBoolean("ro.audio.monitorOrientation", false)) { 459 Log.v(TAG, "monitoring device orientation"); 460 intentFilter.addAction(Intent.ACTION_CONFIGURATION_CHANGED); 461 // initialize orientation in AudioSystem 462 setOrientationForAudioSystem(); 463 } 464 465 context.registerReceiver(mReceiver, intentFilter); 466 467 // Register for package removal intent broadcasts for media button receiver persistence 468 IntentFilter pkgFilter = new IntentFilter(); 469 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 470 pkgFilter.addDataScheme("package"); 471 context.registerReceiver(mReceiver, pkgFilter); 472 473 // Register for phone state monitoring 474 TelephonyManager tmgr = (TelephonyManager) 475 context.getSystemService(Context.TELEPHONY_SERVICE); 476 tmgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 477 478 mUseMasterVolume = context.getResources().getBoolean( 479 com.android.internal.R.bool.config_useMasterVolume); 480 restoreMasterVolume(); 481 482 mMasterVolumeRamp = context.getResources().getIntArray( 483 com.android.internal.R.array.config_masterVolumeRamp); 484 485 } 486 487 private void createAudioSystemThread() { 488 mAudioSystemThread = new AudioSystemThread(); 489 mAudioSystemThread.start(); 490 waitForAudioHandlerCreation(); 491 } 492 493 /** Waits for the volume handler to be created by the other thread. */ 494 private void waitForAudioHandlerCreation() { 495 synchronized(this) { 496 while (mAudioHandler == null) { 497 try { 498 // Wait for mAudioHandler to be set by the other thread 499 wait(); 500 } catch (InterruptedException e) { 501 Log.e(TAG, "Interrupted while waiting on volume handler."); 502 } 503 } 504 } 505 } 506 507 private void checkAllAliasStreamVolumes() { 508 int numStreamTypes = AudioSystem.getNumStreamTypes(); 509 for (int streamType = 0; streamType < numStreamTypes; streamType++) { 510 if (streamType != mStreamVolumeAlias[streamType]) { 511 mStreamStates[streamType]. 512 setAllIndexes(mStreamStates[mStreamVolumeAlias[streamType]], 513 false /*lastAudible*/); 514 mStreamStates[streamType]. 515 setAllIndexes(mStreamStates[mStreamVolumeAlias[streamType]], 516 true /*lastAudible*/); 517 } 518 // apply stream volume 519 if (mStreamStates[streamType].muteCount() == 0) { 520 mStreamStates[streamType].applyAllVolumes(); 521 } 522 } 523 } 524 525 private void createStreamStates() { 526 int numStreamTypes = AudioSystem.getNumStreamTypes(); 527 VolumeStreamState[] streams = mStreamStates = new VolumeStreamState[numStreamTypes]; 528 529 for (int i = 0; i < numStreamTypes; i++) { 530 streams[i] = new VolumeStreamState(System.VOLUME_SETTINGS[mStreamVolumeAlias[i]], i); 531 } 532 533 checkAllAliasStreamVolumes(); 534 } 535 536 private void dumpStreamStates(PrintWriter pw) { 537 pw.println("\nStream volumes (device: index)"); 538 int numStreamTypes = AudioSystem.getNumStreamTypes(); 539 for (int i = 0; i < numStreamTypes; i++) { 540 pw.println("- "+STREAM_NAMES[i]+":"); 541 mStreamStates[i].dump(pw); 542 pw.println(""); 543 } 544 } 545 546 547 private void updateStreamVolumeAlias(boolean updateVolumes) { 548 int dtmfStreamAlias; 549 if (mVoiceCapable) { 550 mStreamVolumeAlias = STREAM_VOLUME_ALIAS; 551 dtmfStreamAlias = AudioSystem.STREAM_RING; 552 } else { 553 mStreamVolumeAlias = STREAM_VOLUME_ALIAS_NON_VOICE; 554 dtmfStreamAlias = AudioSystem.STREAM_MUSIC; 555 } 556 if (isInCommunication()) { 557 dtmfStreamAlias = AudioSystem.STREAM_VOICE_CALL; 558 } 559 mStreamVolumeAlias[AudioSystem.STREAM_DTMF] = dtmfStreamAlias; 560 if (updateVolumes) { 561 mStreamStates[AudioSystem.STREAM_DTMF].setAllIndexes(mStreamStates[dtmfStreamAlias], 562 false /*lastAudible*/); 563 mStreamStates[AudioSystem.STREAM_DTMF].setAllIndexes(mStreamStates[dtmfStreamAlias], 564 true /*lastAudible*/); 565 sendMsg(mAudioHandler, 566 MSG_SET_ALL_VOLUMES, 567 SENDMSG_QUEUE, 568 0, 569 0, 570 mStreamStates[AudioSystem.STREAM_DTMF], 0); 571 } 572 } 573 574 private void readPersistedSettings() { 575 final ContentResolver cr = mContentResolver; 576 577 int ringerModeFromSettings = 578 System.getInt(cr, System.MODE_RINGER, AudioManager.RINGER_MODE_NORMAL); 579 int ringerMode = ringerModeFromSettings; 580 // sanity check in case the settings are restored from a device with incompatible 581 // ringer modes 582 if (!AudioManager.isValidRingerMode(ringerMode)) { 583 ringerMode = AudioManager.RINGER_MODE_NORMAL; 584 } 585 if ((ringerMode == AudioManager.RINGER_MODE_VIBRATE) && !mHasVibrator) { 586 ringerMode = AudioManager.RINGER_MODE_SILENT; 587 } 588 if (ringerMode != ringerModeFromSettings) { 589 System.putInt(cr, System.MODE_RINGER, ringerMode); 590 } 591 synchronized(mSettingsLock) { 592 mRingerMode = ringerMode; 593 } 594 595 // System.VIBRATE_ON is not used any more but defaults for mVibrateSetting 596 // are still needed while setVibrateSetting() and getVibrateSetting() are being deprecated. 597 mVibrateSetting = getValueForVibrateSetting(0, 598 AudioManager.VIBRATE_TYPE_NOTIFICATION, 599 mHasVibrator ? AudioManager.VIBRATE_SETTING_ONLY_SILENT 600 : AudioManager.VIBRATE_SETTING_OFF); 601 mVibrateSetting = getValueForVibrateSetting(mVibrateSetting, 602 AudioManager.VIBRATE_TYPE_RINGER, 603 mHasVibrator ? AudioManager.VIBRATE_SETTING_ONLY_SILENT 604 : AudioManager.VIBRATE_SETTING_OFF); 605 606 // make sure settings for ringer mode are consistent with device type: non voice capable 607 // devices (tablets) include media stream in silent mode whereas phones don't. 608 mRingerModeAffectedStreams = Settings.System.getInt(cr, 609 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 610 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 611 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 612 if (mVoiceCapable) { 613 mRingerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 614 } else { 615 mRingerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 616 } 617 Settings.System.putInt(cr, 618 Settings.System.MODE_RINGER_STREAMS_AFFECTED, mRingerModeAffectedStreams); 619 620 mMuteAffectedStreams = System.getInt(cr, 621 System.MUTE_STREAMS_AFFECTED, 622 ((1 << AudioSystem.STREAM_MUSIC)|(1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_SYSTEM))); 623 624 boolean masterMute = System.getInt(cr, System.VOLUME_MASTER_MUTE, 0) == 1; 625 AudioSystem.setMasterMute(masterMute); 626 broadcastMasterMuteStatus(masterMute); 627 628 // Each stream will read its own persisted settings 629 630 // Broadcast the sticky intent 631 broadcastRingerMode(ringerMode); 632 633 // Broadcast vibrate settings 634 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_RINGER); 635 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_NOTIFICATION); 636 637 // Restore the default media button receiver from the system settings 638 restoreMediaButtonReceiver(); 639 } 640 641 private int rescaleIndex(int index, int srcStream, int dstStream) { 642 return (index * mStreamStates[dstStream].getMaxIndex() + mStreamStates[srcStream].getMaxIndex() / 2) / mStreamStates[srcStream].getMaxIndex(); 643 } 644 645 /////////////////////////////////////////////////////////////////////////// 646 // IPC methods 647 /////////////////////////////////////////////////////////////////////////// 648 649 /** @see AudioManager#adjustVolume(int, int) */ 650 public void adjustVolume(int direction, int flags) { 651 adjustSuggestedStreamVolume(direction, AudioManager.USE_DEFAULT_STREAM_TYPE, flags); 652 } 653 654 /** @see AudioManager#adjustVolume(int, int, int) */ 655 public void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags) { 656 657 int streamType; 658 if (mVolumeControlStream != -1) { 659 streamType = mVolumeControlStream; 660 } else { 661 streamType = getActiveStreamType(suggestedStreamType); 662 } 663 664 // Play sounds on STREAM_RING only and if lock screen is not on. 665 if ((flags & AudioManager.FLAG_PLAY_SOUND) != 0 && 666 ((mStreamVolumeAlias[streamType] != AudioSystem.STREAM_RING) 667 || (mKeyguardManager != null && mKeyguardManager.isKeyguardLocked()))) { 668 flags &= ~AudioManager.FLAG_PLAY_SOUND; 669 } 670 671 adjustStreamVolume(streamType, direction, flags); 672 } 673 674 /** @see AudioManager#adjustStreamVolume(int, int, int) */ 675 public void adjustStreamVolume(int streamType, int direction, int flags) { 676 ensureValidDirection(direction); 677 ensureValidStreamType(streamType); 678 679 // use stream type alias here so that streams with same alias have the same behavior, 680 // including with regard to silent mode control (e.g the use of STREAM_RING below and in 681 // checkForRingerModeChange() in place of STREAM_RING or STREAM_NOTIFICATION) 682 int streamTypeAlias = mStreamVolumeAlias[streamType]; 683 VolumeStreamState streamState = mStreamStates[streamTypeAlias]; 684 685 final int device = getDeviceForStream(streamTypeAlias); 686 // get last audible index if stream is muted, current index otherwise 687 final int aliasIndex = streamState.getIndex(device, 688 (streamState.muteCount() != 0) /* lastAudible */); 689 boolean adjustVolume = true; 690 691 // convert one UI step (+/-1) into a number of internal units on the stream alias 692 int step = rescaleIndex(10, streamType, streamTypeAlias); 693 694 // If either the client forces allowing ringer modes for this adjustment, 695 // or the stream type is one that is affected by ringer modes 696 if (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 697 (streamTypeAlias == getMasterStreamType())) { 698 int ringerMode = getRingerMode(); 699 // do not vibrate if already in vibrate mode 700 if (ringerMode == AudioManager.RINGER_MODE_VIBRATE) { 701 flags &= ~AudioManager.FLAG_VIBRATE; 702 } 703 // Check if the ringer mode changes with this volume adjustment. If 704 // it does, it will handle adjusting the volume, so we won't below 705 adjustVolume = checkForRingerModeChange(aliasIndex, direction, step); 706 if ((streamTypeAlias == getMasterStreamType()) && 707 (mRingerMode == AudioManager.RINGER_MODE_SILENT)) { 708 streamState.setLastAudibleIndex(0, device); 709 } 710 } 711 712 // If stream is muted, adjust last audible index only 713 int index; 714 final int oldIndex = mStreamStates[streamType].getIndex(device, 715 (mStreamStates[streamType].muteCount() != 0) /* lastAudible */); 716 717 if (streamState.muteCount() != 0) { 718 if (adjustVolume) { 719 // Post a persist volume msg 720 // no need to persist volume on all streams sharing the same alias 721 streamState.adjustLastAudibleIndex(direction * step, device); 722 sendMsg(mAudioHandler, 723 MSG_PERSIST_VOLUME, 724 SENDMSG_QUEUE, 725 PERSIST_LAST_AUDIBLE, 726 device, 727 streamState, 728 PERSIST_DELAY); 729 } 730 index = mStreamStates[streamType].getIndex(device, true /* lastAudible */); 731 } else { 732 if (adjustVolume && streamState.adjustIndex(direction * step, device)) { 733 // Post message to set system volume (it in turn will post a message 734 // to persist). Do not change volume if stream is muted. 735 sendMsg(mAudioHandler, 736 MSG_SET_DEVICE_VOLUME, 737 SENDMSG_QUEUE, 738 device, 739 0, 740 streamState, 741 0); 742 } 743 index = mStreamStates[streamType].getIndex(device, false /* lastAudible */); 744 } 745 746 sendVolumeUpdate(streamType, oldIndex, index, flags); 747 } 748 749 /** @see AudioManager#adjustMasterVolume(int) */ 750 public void adjustMasterVolume(int steps, int flags) { 751 ensureValidSteps(steps); 752 int volume = Math.round(AudioSystem.getMasterVolume() * MAX_MASTER_VOLUME); 753 int delta = 0; 754 int numSteps = Math.abs(steps); 755 int direction = steps > 0 ? AudioManager.ADJUST_RAISE : AudioManager.ADJUST_LOWER; 756 for (int i = 0; i < numSteps; ++i) { 757 delta = findVolumeDelta(direction, volume); 758 volume += delta; 759 } 760 761 //Log.d(TAG, "adjustMasterVolume volume: " + volume + " steps: " + steps); 762 setMasterVolume(volume, flags); 763 } 764 765 /** @see AudioManager#setStreamVolume(int, int, int) */ 766 public void setStreamVolume(int streamType, int index, int flags) { 767 ensureValidStreamType(streamType); 768 VolumeStreamState streamState = mStreamStates[mStreamVolumeAlias[streamType]]; 769 770 final int device = getDeviceForStream(streamType); 771 // get last audible index if stream is muted, current index otherwise 772 final int oldIndex = streamState.getIndex(device, 773 (streamState.muteCount() != 0) /* lastAudible */); 774 775 index = rescaleIndex(index * 10, streamType, mStreamVolumeAlias[streamType]); 776 777 // setting volume on master stream type also controls silent mode 778 if (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 779 (mStreamVolumeAlias[streamType] == getMasterStreamType())) { 780 int newRingerMode; 781 if (index == 0) { 782 newRingerMode = mHasVibrator ? AudioManager.RINGER_MODE_VIBRATE 783 : AudioManager.RINGER_MODE_SILENT; 784 setStreamVolumeInt(mStreamVolumeAlias[streamType], 785 index, 786 device, 787 false, 788 true); 789 } else { 790 newRingerMode = AudioManager.RINGER_MODE_NORMAL; 791 } 792 setRingerMode(newRingerMode); 793 } 794 795 setStreamVolumeInt(mStreamVolumeAlias[streamType], index, device, false, true); 796 // get last audible index if stream is muted, current index otherwise 797 index = mStreamStates[streamType].getIndex(device, 798 (mStreamStates[streamType].muteCount() != 0) /* lastAudible */); 799 800 sendVolumeUpdate(streamType, oldIndex, index, flags); 801 } 802 803 /** @see AudioManager#forceVolumeControlStream(int) */ 804 public void forceVolumeControlStream(int streamType, IBinder cb) { 805 synchronized(mForceControlStreamLock) { 806 mVolumeControlStream = streamType; 807 if (mVolumeControlStream == -1) { 808 if (mForceControlStreamClient != null) { 809 mForceControlStreamClient.release(); 810 mForceControlStreamClient = null; 811 } 812 } else { 813 mForceControlStreamClient = new ForceControlStreamClient(cb); 814 } 815 } 816 } 817 818 private class ForceControlStreamClient implements IBinder.DeathRecipient { 819 private IBinder mCb; // To be notified of client's death 820 821 ForceControlStreamClient(IBinder cb) { 822 if (cb != null) { 823 try { 824 cb.linkToDeath(this, 0); 825 } catch (RemoteException e) { 826 // Client has died! 827 Log.w(TAG, "ForceControlStreamClient() could not link to "+cb+" binder death"); 828 cb = null; 829 } 830 } 831 mCb = cb; 832 } 833 834 public void binderDied() { 835 synchronized(mForceControlStreamLock) { 836 Log.w(TAG, "SCO client died"); 837 if (mForceControlStreamClient != this) { 838 Log.w(TAG, "unregistered control stream client died"); 839 } else { 840 mForceControlStreamClient = null; 841 mVolumeControlStream = -1; 842 } 843 } 844 } 845 846 public void release() { 847 if (mCb != null) { 848 mCb.unlinkToDeath(this, 0); 849 mCb = null; 850 } 851 } 852 } 853 854 private int findVolumeDelta(int direction, int volume) { 855 int delta = 0; 856 if (direction == AudioManager.ADJUST_RAISE) { 857 if (volume == MAX_MASTER_VOLUME) { 858 return 0; 859 } 860 // This is the default value if we make it to the end 861 delta = mMasterVolumeRamp[1]; 862 // If we're raising the volume move down the ramp array until we 863 // find the volume we're above and use that groups delta. 864 for (int i = mMasterVolumeRamp.length - 1; i > 1; i -= 2) { 865 if (volume >= mMasterVolumeRamp[i - 1]) { 866 delta = mMasterVolumeRamp[i]; 867 break; 868 } 869 } 870 } else if (direction == AudioManager.ADJUST_LOWER){ 871 if (volume == 0) { 872 return 0; 873 } 874 int length = mMasterVolumeRamp.length; 875 // This is the default value if we make it to the end 876 delta = -mMasterVolumeRamp[length - 1]; 877 // If we're lowering the volume move up the ramp array until we 878 // find the volume we're below and use the group below it's delta 879 for (int i = 2; i < length; i += 2) { 880 if (volume <= mMasterVolumeRamp[i]) { 881 delta = -mMasterVolumeRamp[i - 1]; 882 break; 883 } 884 } 885 } 886 return delta; 887 } 888 889 // UI update and Broadcast Intent 890 private void sendVolumeUpdate(int streamType, int oldIndex, int index, int flags) { 891 if (!mVoiceCapable && (streamType == AudioSystem.STREAM_RING)) { 892 streamType = AudioSystem.STREAM_NOTIFICATION; 893 } 894 895 mVolumePanel.postVolumeChanged(streamType, flags); 896 897 oldIndex = (oldIndex + 5) / 10; 898 index = (index + 5) / 10; 899 Intent intent = new Intent(AudioManager.VOLUME_CHANGED_ACTION); 900 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, streamType); 901 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, index); 902 intent.putExtra(AudioManager.EXTRA_PREV_VOLUME_STREAM_VALUE, oldIndex); 903 mContext.sendBroadcast(intent); 904 } 905 906 // UI update and Broadcast Intent 907 private void sendMasterVolumeUpdate(int flags, int oldVolume, int newVolume) { 908 mVolumePanel.postMasterVolumeChanged(flags); 909 910 Intent intent = new Intent(AudioManager.MASTER_VOLUME_CHANGED_ACTION); 911 intent.putExtra(AudioManager.EXTRA_PREV_MASTER_VOLUME_VALUE, oldVolume); 912 intent.putExtra(AudioManager.EXTRA_MASTER_VOLUME_VALUE, newVolume); 913 mContext.sendBroadcast(intent); 914 } 915 916 // UI update and Broadcast Intent 917 private void sendMasterMuteUpdate(boolean muted, int flags) { 918 mVolumePanel.postMasterMuteChanged(flags); 919 broadcastMasterMuteStatus(muted); 920 } 921 922 private void broadcastMasterMuteStatus(boolean muted) { 923 Intent intent = new Intent(AudioManager.MASTER_MUTE_CHANGED_ACTION); 924 intent.putExtra(AudioManager.EXTRA_MASTER_VOLUME_MUTED, muted); 925 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT 926 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 927 long origCallerIdentityToken = Binder.clearCallingIdentity(); 928 mContext.sendStickyBroadcast(intent); 929 Binder.restoreCallingIdentity(origCallerIdentityToken); 930 } 931 932 /** 933 * Sets the stream state's index, and posts a message to set system volume. 934 * This will not call out to the UI. Assumes a valid stream type. 935 * 936 * @param streamType Type of the stream 937 * @param index Desired volume index of the stream 938 * @param device the device whose volume must be changed 939 * @param force If true, set the volume even if the desired volume is same 940 * as the current volume. 941 * @param lastAudible If true, stores new index as last audible one 942 */ 943 private void setStreamVolumeInt(int streamType, 944 int index, 945 int device, 946 boolean force, 947 boolean lastAudible) { 948 VolumeStreamState streamState = mStreamStates[streamType]; 949 950 // If stream is muted, set last audible index only 951 if (streamState.muteCount() != 0) { 952 // Do not allow last audible index to be 0 953 if (index != 0) { 954 streamState.setLastAudibleIndex(index, device); 955 // Post a persist volume msg 956 sendMsg(mAudioHandler, 957 MSG_PERSIST_VOLUME, 958 SENDMSG_QUEUE, 959 PERSIST_LAST_AUDIBLE, 960 device, 961 streamState, 962 PERSIST_DELAY); 963 } 964 } else { 965 if (streamState.setIndex(index, device, lastAudible) || force) { 966 // Post message to set system volume (it in turn will post a message 967 // to persist). 968 sendMsg(mAudioHandler, 969 MSG_SET_DEVICE_VOLUME, 970 SENDMSG_QUEUE, 971 device, 972 0, 973 streamState, 974 0); 975 } 976 } 977 } 978 979 /** @see AudioManager#setStreamSolo(int, boolean) */ 980 public void setStreamSolo(int streamType, boolean state, IBinder cb) { 981 for (int stream = 0; stream < mStreamStates.length; stream++) { 982 if (!isStreamAffectedByMute(stream) || stream == streamType) continue; 983 // Bring back last audible volume 984 mStreamStates[stream].mute(cb, state); 985 } 986 } 987 988 /** @see AudioManager#setStreamMute(int, boolean) */ 989 public void setStreamMute(int streamType, boolean state, IBinder cb) { 990 if (isStreamAffectedByMute(streamType)) { 991 mStreamStates[streamType].mute(cb, state); 992 } 993 } 994 995 /** get stream mute state. */ 996 public boolean isStreamMute(int streamType) { 997 return (mStreamStates[streamType].muteCount() != 0); 998 } 999 1000 /** @see AudioManager#setMasterMute(boolean, IBinder) */ 1001 public void setMasterMute(boolean state, int flags, IBinder cb) { 1002 if (state != AudioSystem.getMasterMute()) { 1003 AudioSystem.setMasterMute(state); 1004 // Post a persist master volume msg 1005 sendMsg(mAudioHandler, MSG_PERSIST_MASTER_VOLUME_MUTE, SENDMSG_REPLACE, state ? 1 1006 : 0, 0, null, PERSIST_DELAY); 1007 sendMasterMuteUpdate(state, flags); 1008 } 1009 } 1010 1011 /** get master mute state. */ 1012 public boolean isMasterMute() { 1013 return AudioSystem.getMasterMute(); 1014 } 1015 1016 /** @see AudioManager#getStreamVolume(int) */ 1017 public int getStreamVolume(int streamType) { 1018 ensureValidStreamType(streamType); 1019 int device = getDeviceForStream(streamType); 1020 return (mStreamStates[streamType].getIndex(device, false /* lastAudible */) + 5) / 10; 1021 } 1022 1023 public int getMasterVolume() { 1024 if (isMasterMute()) return 0; 1025 return getLastAudibleMasterVolume(); 1026 } 1027 1028 public void setMasterVolume(int volume, int flags) { 1029 if (volume < 0) { 1030 volume = 0; 1031 } else if (volume > MAX_MASTER_VOLUME) { 1032 volume = MAX_MASTER_VOLUME; 1033 } 1034 doSetMasterVolume((float)volume / MAX_MASTER_VOLUME, flags); 1035 } 1036 1037 private void doSetMasterVolume(float volume, int flags) { 1038 // don't allow changing master volume when muted 1039 if (!AudioSystem.getMasterMute()) { 1040 int oldVolume = getMasterVolume(); 1041 AudioSystem.setMasterVolume(volume); 1042 1043 int newVolume = getMasterVolume(); 1044 if (newVolume != oldVolume) { 1045 // Post a persist master volume msg 1046 sendMsg(mAudioHandler, MSG_PERSIST_MASTER_VOLUME, SENDMSG_REPLACE, 1047 Math.round(volume * (float)1000.0), 0, null, PERSIST_DELAY); 1048 } 1049 // Send the volume update regardless whether there was a change. 1050 sendMasterVolumeUpdate(flags, oldVolume, newVolume); 1051 } 1052 } 1053 1054 /** @see AudioManager#getStreamMaxVolume(int) */ 1055 public int getStreamMaxVolume(int streamType) { 1056 ensureValidStreamType(streamType); 1057 return (mStreamStates[streamType].getMaxIndex() + 5) / 10; 1058 } 1059 1060 public int getMasterMaxVolume() { 1061 return MAX_MASTER_VOLUME; 1062 } 1063 1064 /** Get last audible volume before stream was muted. */ 1065 public int getLastAudibleStreamVolume(int streamType) { 1066 ensureValidStreamType(streamType); 1067 int device = getDeviceForStream(streamType); 1068 return (mStreamStates[streamType].getIndex(device, true /* lastAudible */) + 5) / 10; 1069 } 1070 1071 /** Get last audible master volume before it was muted. */ 1072 public int getLastAudibleMasterVolume() { 1073 return Math.round(AudioSystem.getMasterVolume() * MAX_MASTER_VOLUME); 1074 } 1075 1076 /** @see AudioManager#getMasterStreamType(int) */ 1077 public int getMasterStreamType() { 1078 if (mVoiceCapable) { 1079 return AudioSystem.STREAM_RING; 1080 } else { 1081 return AudioSystem.STREAM_MUSIC; 1082 } 1083 } 1084 1085 /** @see AudioManager#getRingerMode() */ 1086 public int getRingerMode() { 1087 synchronized(mSettingsLock) { 1088 return mRingerMode; 1089 } 1090 } 1091 1092 private void ensureValidRingerMode(int ringerMode) { 1093 if (!AudioManager.isValidRingerMode(ringerMode)) { 1094 throw new IllegalArgumentException("Bad ringer mode " + ringerMode); 1095 } 1096 } 1097 1098 /** @see AudioManager#setRingerMode(int) */ 1099 public void setRingerMode(int ringerMode) { 1100 if ((ringerMode == AudioManager.RINGER_MODE_VIBRATE) && !mHasVibrator) { 1101 ringerMode = AudioManager.RINGER_MODE_SILENT; 1102 } 1103 if (ringerMode != getRingerMode()) { 1104 setRingerModeInt(ringerMode, true); 1105 // Send sticky broadcast 1106 broadcastRingerMode(ringerMode); 1107 } 1108 } 1109 1110 private void setRingerModeInt(int ringerMode, boolean persist) { 1111 synchronized(mSettingsLock) { 1112 mRingerMode = ringerMode; 1113 } 1114 1115 // Mute stream if not previously muted by ringer mode and ringer mode 1116 // is not RINGER_MODE_NORMAL and stream is affected by ringer mode. 1117 // Unmute stream if previously muted by ringer mode and ringer mode 1118 // is RINGER_MODE_NORMAL or stream is not affected by ringer mode. 1119 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1120 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 1121 if (isStreamMutedByRingerMode(streamType)) { 1122 if (!isStreamAffectedByRingerMode(streamType) || 1123 ringerMode == AudioManager.RINGER_MODE_NORMAL) { 1124 // ring and notifications volume should never be 0 when not silenced 1125 // on voice capable devices 1126 if (mVoiceCapable && 1127 mStreamVolumeAlias[streamType] == AudioSystem.STREAM_RING) { 1128 synchronized (mStreamStates[streamType]) { 1129 Set set = mStreamStates[streamType].mLastAudibleIndex.entrySet(); 1130 Iterator i = set.iterator(); 1131 while (i.hasNext()) { 1132 Map.Entry entry = (Map.Entry)i.next(); 1133 if ((Integer)entry.getValue() == 0) { 1134 entry.setValue(10); 1135 } 1136 } 1137 } 1138 } 1139 mStreamStates[streamType].mute(null, false); 1140 mRingerModeMutedStreams &= ~(1 << streamType); 1141 } 1142 } else { 1143 if (isStreamAffectedByRingerMode(streamType) && 1144 ringerMode != AudioManager.RINGER_MODE_NORMAL) { 1145 mStreamStates[streamType].mute(null, true); 1146 mRingerModeMutedStreams |= (1 << streamType); 1147 } 1148 } 1149 } 1150 1151 // Post a persist ringer mode msg 1152 if (persist) { 1153 sendMsg(mAudioHandler, MSG_PERSIST_RINGER_MODE, 1154 SENDMSG_REPLACE, 0, 0, null, PERSIST_DELAY); 1155 } 1156 } 1157 1158 private void restoreMasterVolume() { 1159 if (mUseMasterVolume) { 1160 float volume = Settings.System.getFloat(mContentResolver, 1161 Settings.System.VOLUME_MASTER, -1.0f); 1162 if (volume >= 0.0f) { 1163 AudioSystem.setMasterVolume(volume); 1164 } 1165 } 1166 } 1167 1168 /** @see AudioManager#shouldVibrate(int) */ 1169 public boolean shouldVibrate(int vibrateType) { 1170 if (!mHasVibrator) return false; 1171 1172 switch (getVibrateSetting(vibrateType)) { 1173 1174 case AudioManager.VIBRATE_SETTING_ON: 1175 return getRingerMode() != AudioManager.RINGER_MODE_SILENT; 1176 1177 case AudioManager.VIBRATE_SETTING_ONLY_SILENT: 1178 return getRingerMode() == AudioManager.RINGER_MODE_VIBRATE; 1179 1180 case AudioManager.VIBRATE_SETTING_OFF: 1181 // return false, even for incoming calls 1182 return false; 1183 1184 default: 1185 return false; 1186 } 1187 } 1188 1189 /** @see AudioManager#getVibrateSetting(int) */ 1190 public int getVibrateSetting(int vibrateType) { 1191 if (!mHasVibrator) return AudioManager.VIBRATE_SETTING_OFF; 1192 return (mVibrateSetting >> (vibrateType * 2)) & 3; 1193 } 1194 1195 /** @see AudioManager#setVibrateSetting(int, int) */ 1196 public void setVibrateSetting(int vibrateType, int vibrateSetting) { 1197 1198 if (!mHasVibrator) return; 1199 1200 mVibrateSetting = getValueForVibrateSetting(mVibrateSetting, vibrateType, vibrateSetting); 1201 1202 // Broadcast change 1203 broadcastVibrateSetting(vibrateType); 1204 1205 } 1206 1207 /** 1208 * @see #setVibrateSetting(int, int) 1209 */ 1210 public static int getValueForVibrateSetting(int existingValue, int vibrateType, 1211 int vibrateSetting) { 1212 1213 // First clear the existing setting. Each vibrate type has two bits in 1214 // the value. Note '3' is '11' in binary. 1215 existingValue &= ~(3 << (vibrateType * 2)); 1216 1217 // Set into the old value 1218 existingValue |= (vibrateSetting & 3) << (vibrateType * 2); 1219 1220 return existingValue; 1221 } 1222 1223 private class SetModeDeathHandler implements IBinder.DeathRecipient { 1224 private IBinder mCb; // To be notified of client's death 1225 private int mPid; 1226 private int mMode = AudioSystem.MODE_NORMAL; // Current mode set by this client 1227 1228 SetModeDeathHandler(IBinder cb, int pid) { 1229 mCb = cb; 1230 mPid = pid; 1231 } 1232 1233 public void binderDied() { 1234 int newModeOwnerPid = 0; 1235 synchronized(mSetModeDeathHandlers) { 1236 Log.w(TAG, "setMode() client died"); 1237 int index = mSetModeDeathHandlers.indexOf(this); 1238 if (index < 0) { 1239 Log.w(TAG, "unregistered setMode() client died"); 1240 } else { 1241 newModeOwnerPid = setModeInt(AudioSystem.MODE_NORMAL, mCb, mPid); 1242 } 1243 } 1244 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 1245 // SCO connections not started by the application changing the mode 1246 if (newModeOwnerPid != 0) { 1247 disconnectBluetoothSco(newModeOwnerPid); 1248 } 1249 } 1250 1251 public int getPid() { 1252 return mPid; 1253 } 1254 1255 public void setMode(int mode) { 1256 mMode = mode; 1257 } 1258 1259 public int getMode() { 1260 return mMode; 1261 } 1262 1263 public IBinder getBinder() { 1264 return mCb; 1265 } 1266 } 1267 1268 /** @see AudioManager#setMode(int) */ 1269 public void setMode(int mode, IBinder cb) { 1270 if (!checkAudioSettingsPermission("setMode()")) { 1271 return; 1272 } 1273 1274 if (mode < AudioSystem.MODE_CURRENT || mode >= AudioSystem.NUM_MODES) { 1275 return; 1276 } 1277 1278 int newModeOwnerPid = 0; 1279 synchronized(mSetModeDeathHandlers) { 1280 if (mode == AudioSystem.MODE_CURRENT) { 1281 mode = mMode; 1282 } 1283 newModeOwnerPid = setModeInt(mode, cb, Binder.getCallingPid()); 1284 } 1285 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 1286 // SCO connections not started by the application changing the mode 1287 if (newModeOwnerPid != 0) { 1288 disconnectBluetoothSco(newModeOwnerPid); 1289 } 1290 } 1291 1292 // must be called synchronized on mSetModeDeathHandlers 1293 // setModeInt() returns a valid PID if the audio mode was successfully set to 1294 // any mode other than NORMAL. 1295 int setModeInt(int mode, IBinder cb, int pid) { 1296 int newModeOwnerPid = 0; 1297 if (cb == null) { 1298 Log.e(TAG, "setModeInt() called with null binder"); 1299 return newModeOwnerPid; 1300 } 1301 1302 SetModeDeathHandler hdlr = null; 1303 Iterator iter = mSetModeDeathHandlers.iterator(); 1304 while (iter.hasNext()) { 1305 SetModeDeathHandler h = (SetModeDeathHandler)iter.next(); 1306 if (h.getPid() == pid) { 1307 hdlr = h; 1308 // Remove from client list so that it is re-inserted at top of list 1309 iter.remove(); 1310 hdlr.getBinder().unlinkToDeath(hdlr, 0); 1311 break; 1312 } 1313 } 1314 int status = AudioSystem.AUDIO_STATUS_OK; 1315 do { 1316 if (mode == AudioSystem.MODE_NORMAL) { 1317 // get new mode from client at top the list if any 1318 if (!mSetModeDeathHandlers.isEmpty()) { 1319 hdlr = mSetModeDeathHandlers.get(0); 1320 cb = hdlr.getBinder(); 1321 mode = hdlr.getMode(); 1322 } 1323 } else { 1324 if (hdlr == null) { 1325 hdlr = new SetModeDeathHandler(cb, pid); 1326 } 1327 // Register for client death notification 1328 try { 1329 cb.linkToDeath(hdlr, 0); 1330 } catch (RemoteException e) { 1331 // Client has died! 1332 Log.w(TAG, "setMode() could not link to "+cb+" binder death"); 1333 } 1334 1335 // Last client to call setMode() is always at top of client list 1336 // as required by SetModeDeathHandler.binderDied() 1337 mSetModeDeathHandlers.add(0, hdlr); 1338 hdlr.setMode(mode); 1339 } 1340 1341 if (mode != mMode) { 1342 status = AudioSystem.setPhoneState(mode); 1343 if (status == AudioSystem.AUDIO_STATUS_OK) { 1344 mMode = mode; 1345 } else { 1346 if (hdlr != null) { 1347 mSetModeDeathHandlers.remove(hdlr); 1348 cb.unlinkToDeath(hdlr, 0); 1349 } 1350 // force reading new top of mSetModeDeathHandlers stack 1351 mode = AudioSystem.MODE_NORMAL; 1352 } 1353 } else { 1354 status = AudioSystem.AUDIO_STATUS_OK; 1355 } 1356 } while (status != AudioSystem.AUDIO_STATUS_OK && !mSetModeDeathHandlers.isEmpty()); 1357 1358 if (status == AudioSystem.AUDIO_STATUS_OK) { 1359 if (mode != AudioSystem.MODE_NORMAL) { 1360 if (mSetModeDeathHandlers.isEmpty()) { 1361 Log.e(TAG, "setMode() different from MODE_NORMAL with empty mode client stack"); 1362 } else { 1363 newModeOwnerPid = mSetModeDeathHandlers.get(0).getPid(); 1364 } 1365 } 1366 int streamType = getActiveStreamType(AudioManager.USE_DEFAULT_STREAM_TYPE); 1367 int device = getDeviceForStream(streamType); 1368 int index = mStreamStates[mStreamVolumeAlias[streamType]].getIndex(device, false); 1369 setStreamVolumeInt(mStreamVolumeAlias[streamType], index, device, true, false); 1370 1371 updateStreamVolumeAlias(true /*updateVolumes*/); 1372 } 1373 return newModeOwnerPid; 1374 } 1375 1376 /** @see AudioManager#getMode() */ 1377 public int getMode() { 1378 return mMode; 1379 } 1380 1381 /** @see AudioManager#playSoundEffect(int) */ 1382 public void playSoundEffect(int effectType) { 1383 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SENDMSG_NOOP, 1384 effectType, -1, null, 0); 1385 } 1386 1387 /** @see AudioManager#playSoundEffect(int, float) */ 1388 public void playSoundEffectVolume(int effectType, float volume) { 1389 loadSoundEffects(); 1390 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SENDMSG_NOOP, 1391 effectType, (int) (volume * 1000), null, 0); 1392 } 1393 1394 /** 1395 * Loads samples into the soundpool. 1396 * This method must be called at first when sound effects are enabled 1397 */ 1398 public boolean loadSoundEffects() { 1399 int status; 1400 1401 synchronized (mSoundEffectsLock) { 1402 if (!mBootCompleted) { 1403 Log.w(TAG, "loadSoundEffects() called before boot complete"); 1404 return false; 1405 } 1406 1407 if (mSoundPool != null) { 1408 return true; 1409 } 1410 mSoundPool = new SoundPool(NUM_SOUNDPOOL_CHANNELS, AudioSystem.STREAM_SYSTEM, 0); 1411 1412 try { 1413 mSoundPoolCallBack = null; 1414 mSoundPoolListenerThread = new SoundPoolListenerThread(); 1415 mSoundPoolListenerThread.start(); 1416 // Wait for mSoundPoolCallBack to be set by the other thread 1417 mSoundEffectsLock.wait(); 1418 } catch (InterruptedException e) { 1419 Log.w(TAG, "Interrupted while waiting sound pool listener thread."); 1420 } 1421 1422 if (mSoundPoolCallBack == null) { 1423 Log.w(TAG, "loadSoundEffects() could not create SoundPool listener or thread"); 1424 if (mSoundPoolLooper != null) { 1425 mSoundPoolLooper.quit(); 1426 mSoundPoolLooper = null; 1427 } 1428 mSoundPoolListenerThread = null; 1429 mSoundPool.release(); 1430 mSoundPool = null; 1431 return false; 1432 } 1433 /* 1434 * poolId table: The value -1 in this table indicates that corresponding 1435 * file (same index in SOUND_EFFECT_FILES[] has not been loaded. 1436 * Once loaded, the value in poolId is the sample ID and the same 1437 * sample can be reused for another effect using the same file. 1438 */ 1439 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1440 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1441 poolId[fileIdx] = -1; 1442 } 1443 /* 1444 * Effects whose value in SOUND_EFFECT_FILES_MAP[effect][1] is -1 must be loaded. 1445 * If load succeeds, value in SOUND_EFFECT_FILES_MAP[effect][1] is > 0: 1446 * this indicates we have a valid sample loaded for this effect. 1447 */ 1448 1449 int lastSample = 0; 1450 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1451 // Do not load sample if this effect uses the MediaPlayer 1452 if (SOUND_EFFECT_FILES_MAP[effect][1] == 0) { 1453 continue; 1454 } 1455 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == -1) { 1456 String filePath = Environment.getRootDirectory() 1457 + SOUND_EFFECTS_PATH 1458 + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effect][0]]; 1459 int sampleId = mSoundPool.load(filePath, 0); 1460 if (sampleId <= 0) { 1461 Log.w(TAG, "Soundpool could not load file: "+filePath); 1462 } else { 1463 SOUND_EFFECT_FILES_MAP[effect][1] = sampleId; 1464 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = sampleId; 1465 lastSample = sampleId; 1466 } 1467 } else { 1468 SOUND_EFFECT_FILES_MAP[effect][1] = poolId[SOUND_EFFECT_FILES_MAP[effect][0]]; 1469 } 1470 } 1471 // wait for all samples to be loaded 1472 if (lastSample != 0) { 1473 mSoundPoolCallBack.setLastSample(lastSample); 1474 1475 try { 1476 mSoundEffectsLock.wait(); 1477 status = mSoundPoolCallBack.status(); 1478 } catch (java.lang.InterruptedException e) { 1479 Log.w(TAG, "Interrupted while waiting sound pool callback."); 1480 status = -1; 1481 } 1482 } else { 1483 status = -1; 1484 } 1485 1486 if (mSoundPoolLooper != null) { 1487 mSoundPoolLooper.quit(); 1488 mSoundPoolLooper = null; 1489 } 1490 mSoundPoolListenerThread = null; 1491 if (status != 0) { 1492 Log.w(TAG, 1493 "loadSoundEffects(), Error " 1494 + ((lastSample != 0) ? mSoundPoolCallBack.status() : -1) 1495 + " while loading samples"); 1496 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1497 if (SOUND_EFFECT_FILES_MAP[effect][1] > 0) { 1498 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1499 } 1500 } 1501 1502 mSoundPool.release(); 1503 mSoundPool = null; 1504 } 1505 } 1506 return (status == 0); 1507 } 1508 1509 /** 1510 * Unloads samples from the sound pool. 1511 * This method can be called to free some memory when 1512 * sound effects are disabled. 1513 */ 1514 public void unloadSoundEffects() { 1515 synchronized (mSoundEffectsLock) { 1516 if (mSoundPool == null) { 1517 return; 1518 } 1519 1520 mAudioHandler.removeMessages(MSG_LOAD_SOUND_EFFECTS); 1521 mAudioHandler.removeMessages(MSG_PLAY_SOUND_EFFECT); 1522 1523 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1524 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1525 poolId[fileIdx] = 0; 1526 } 1527 1528 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1529 if (SOUND_EFFECT_FILES_MAP[effect][1] <= 0) { 1530 continue; 1531 } 1532 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == 0) { 1533 mSoundPool.unload(SOUND_EFFECT_FILES_MAP[effect][1]); 1534 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1535 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = -1; 1536 } 1537 } 1538 mSoundPool.release(); 1539 mSoundPool = null; 1540 } 1541 } 1542 1543 class SoundPoolListenerThread extends Thread { 1544 public SoundPoolListenerThread() { 1545 super("SoundPoolListenerThread"); 1546 } 1547 1548 @Override 1549 public void run() { 1550 1551 Looper.prepare(); 1552 mSoundPoolLooper = Looper.myLooper(); 1553 1554 synchronized (mSoundEffectsLock) { 1555 if (mSoundPool != null) { 1556 mSoundPoolCallBack = new SoundPoolCallback(); 1557 mSoundPool.setOnLoadCompleteListener(mSoundPoolCallBack); 1558 } 1559 mSoundEffectsLock.notify(); 1560 } 1561 Looper.loop(); 1562 } 1563 } 1564 1565 private final class SoundPoolCallback implements 1566 android.media.SoundPool.OnLoadCompleteListener { 1567 1568 int mStatus; 1569 int mLastSample; 1570 1571 public int status() { 1572 return mStatus; 1573 } 1574 1575 public void setLastSample(int sample) { 1576 mLastSample = sample; 1577 } 1578 1579 public void onLoadComplete(SoundPool soundPool, int sampleId, int status) { 1580 synchronized (mSoundEffectsLock) { 1581 if (status != 0) { 1582 mStatus = status; 1583 } 1584 if (sampleId == mLastSample) { 1585 mSoundEffectsLock.notify(); 1586 } 1587 } 1588 } 1589 } 1590 1591 /** @see AudioManager#reloadAudioSettings() */ 1592 public void reloadAudioSettings() { 1593 // restore ringer mode, ringer mode affected streams, mute affected streams and vibrate settings 1594 readPersistedSettings(); 1595 1596 // restore volume settings 1597 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1598 for (int streamType = 0; streamType < numStreamTypes; streamType++) { 1599 VolumeStreamState streamState = mStreamStates[streamType]; 1600 1601 synchronized (streamState) { 1602 streamState.readSettings(); 1603 1604 // unmute stream that was muted but is not affect by mute anymore 1605 if (streamState.muteCount() != 0 && !isStreamAffectedByMute(streamType)) { 1606 int size = streamState.mDeathHandlers.size(); 1607 for (int i = 0; i < size; i++) { 1608 streamState.mDeathHandlers.get(i).mMuteCount = 1; 1609 streamState.mDeathHandlers.get(i).mute(false); 1610 } 1611 } 1612 } 1613 } 1614 1615 checkAllAliasStreamVolumes(); 1616 1617 // apply new ringer mode 1618 setRingerModeInt(getRingerMode(), false); 1619 } 1620 1621 /** @see AudioManager#setSpeakerphoneOn() */ 1622 public void setSpeakerphoneOn(boolean on){ 1623 if (!checkAudioSettingsPermission("setSpeakerphoneOn()")) { 1624 return; 1625 } 1626 mForcedUseForComm = on ? AudioSystem.FORCE_SPEAKER : AudioSystem.FORCE_NONE; 1627 1628 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 1629 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1630 } 1631 1632 /** @see AudioManager#isSpeakerphoneOn() */ 1633 public boolean isSpeakerphoneOn() { 1634 return (mForcedUseForComm == AudioSystem.FORCE_SPEAKER); 1635 } 1636 1637 /** @see AudioManager#setBluetoothScoOn() */ 1638 public void setBluetoothScoOn(boolean on){ 1639 if (!checkAudioSettingsPermission("setBluetoothScoOn()")) { 1640 return; 1641 } 1642 mForcedUseForComm = on ? AudioSystem.FORCE_BT_SCO : AudioSystem.FORCE_NONE; 1643 1644 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 1645 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1646 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 1647 AudioSystem.FOR_RECORD, mForcedUseForComm, null, 0); 1648 } 1649 1650 /** @see AudioManager#isBluetoothScoOn() */ 1651 public boolean isBluetoothScoOn() { 1652 return (mForcedUseForComm == AudioSystem.FORCE_BT_SCO); 1653 } 1654 1655 /** @see AudioManager#setBluetoothA2dpOn() */ 1656 public void setBluetoothA2dpOn(boolean on) { 1657 if (!checkAudioSettingsPermission("setBluetoothA2dpOn()")) { 1658 return; 1659 } 1660 setBluetoothA2dpOnInt(on); 1661 } 1662 1663 /** @see AudioManager#isBluetoothA2dpOn() */ 1664 public boolean isBluetoothA2dpOn() { 1665 synchronized (mBluetoothA2dpEnabledLock) { 1666 return mBluetoothA2dpEnabled; 1667 } 1668 } 1669 1670 /** @see AudioManager#startBluetoothSco() */ 1671 public void startBluetoothSco(IBinder cb){ 1672 if (!checkAudioSettingsPermission("startBluetoothSco()") || 1673 !mBootCompleted) { 1674 return; 1675 } 1676 ScoClient client = getScoClient(cb, true); 1677 client.incCount(); 1678 } 1679 1680 /** @see AudioManager#stopBluetoothSco() */ 1681 public void stopBluetoothSco(IBinder cb){ 1682 if (!checkAudioSettingsPermission("stopBluetoothSco()") || 1683 !mBootCompleted) { 1684 return; 1685 } 1686 ScoClient client = getScoClient(cb, false); 1687 if (client != null) { 1688 client.decCount(); 1689 } 1690 } 1691 1692 1693 private class ScoClient implements IBinder.DeathRecipient { 1694 private IBinder mCb; // To be notified of client's death 1695 private int mCreatorPid; 1696 private int mStartcount; // number of SCO connections started by this client 1697 1698 ScoClient(IBinder cb) { 1699 mCb = cb; 1700 mCreatorPid = Binder.getCallingPid(); 1701 mStartcount = 0; 1702 } 1703 1704 public void binderDied() { 1705 synchronized(mScoClients) { 1706 Log.w(TAG, "SCO client died"); 1707 int index = mScoClients.indexOf(this); 1708 if (index < 0) { 1709 Log.w(TAG, "unregistered SCO client died"); 1710 } else { 1711 clearCount(true); 1712 mScoClients.remove(this); 1713 } 1714 } 1715 } 1716 1717 public void incCount() { 1718 synchronized(mScoClients) { 1719 requestScoState(BluetoothHeadset.STATE_AUDIO_CONNECTED); 1720 if (mStartcount == 0) { 1721 try { 1722 mCb.linkToDeath(this, 0); 1723 } catch (RemoteException e) { 1724 // client has already died! 1725 Log.w(TAG, "ScoClient incCount() could not link to "+mCb+" binder death"); 1726 } 1727 } 1728 mStartcount++; 1729 } 1730 } 1731 1732 public void decCount() { 1733 synchronized(mScoClients) { 1734 if (mStartcount == 0) { 1735 Log.w(TAG, "ScoClient.decCount() already 0"); 1736 } else { 1737 mStartcount--; 1738 if (mStartcount == 0) { 1739 try { 1740 mCb.unlinkToDeath(this, 0); 1741 } catch (NoSuchElementException e) { 1742 Log.w(TAG, "decCount() going to 0 but not registered to binder"); 1743 } 1744 } 1745 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1746 } 1747 } 1748 } 1749 1750 public void clearCount(boolean stopSco) { 1751 synchronized(mScoClients) { 1752 if (mStartcount != 0) { 1753 try { 1754 mCb.unlinkToDeath(this, 0); 1755 } catch (NoSuchElementException e) { 1756 Log.w(TAG, "clearCount() mStartcount: "+mStartcount+" != 0 but not registered to binder"); 1757 } 1758 } 1759 mStartcount = 0; 1760 if (stopSco) { 1761 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1762 } 1763 } 1764 } 1765 1766 public int getCount() { 1767 return mStartcount; 1768 } 1769 1770 public IBinder getBinder() { 1771 return mCb; 1772 } 1773 1774 public int getPid() { 1775 return mCreatorPid; 1776 } 1777 1778 public int totalCount() { 1779 synchronized(mScoClients) { 1780 int count = 0; 1781 int size = mScoClients.size(); 1782 for (int i = 0; i < size; i++) { 1783 count += mScoClients.get(i).getCount(); 1784 } 1785 return count; 1786 } 1787 } 1788 1789 private void requestScoState(int state) { 1790 checkScoAudioState(); 1791 if (totalCount() == 0) { 1792 if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) { 1793 // Make sure that the state transitions to CONNECTING even if we cannot initiate 1794 // the connection. 1795 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTING); 1796 // Accept SCO audio activation only in NORMAL audio mode or if the mode is 1797 // currently controlled by the same client process. 1798 synchronized(mSetModeDeathHandlers) { 1799 if ((mSetModeDeathHandlers.isEmpty() || 1800 mSetModeDeathHandlers.get(0).getPid() == mCreatorPid) && 1801 (mScoAudioState == SCO_STATE_INACTIVE || 1802 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 1803 if (mScoAudioState == SCO_STATE_INACTIVE) { 1804 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null) { 1805 if (mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1806 mBluetoothHeadsetDevice)) { 1807 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1808 } else { 1809 broadcastScoConnectionState( 1810 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1811 } 1812 } else if (getBluetoothHeadset()) { 1813 mScoAudioState = SCO_STATE_ACTIVATE_REQ; 1814 } 1815 } else { 1816 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1817 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTED); 1818 } 1819 } else { 1820 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1821 } 1822 } 1823 } else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED && 1824 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 1825 mScoAudioState == SCO_STATE_ACTIVATE_REQ)) { 1826 if (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL) { 1827 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null) { 1828 if (!mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1829 mBluetoothHeadsetDevice)) { 1830 mScoAudioState = SCO_STATE_INACTIVE; 1831 broadcastScoConnectionState( 1832 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1833 } 1834 } else if (getBluetoothHeadset()) { 1835 mScoAudioState = SCO_STATE_DEACTIVATE_REQ; 1836 } 1837 } else { 1838 mScoAudioState = SCO_STATE_INACTIVE; 1839 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1840 } 1841 } 1842 } 1843 } 1844 } 1845 1846 private void checkScoAudioState() { 1847 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null && 1848 mScoAudioState == SCO_STATE_INACTIVE && 1849 mBluetoothHeadset.getAudioState(mBluetoothHeadsetDevice) 1850 != BluetoothHeadset.STATE_AUDIO_DISCONNECTED) { 1851 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 1852 } 1853 } 1854 1855 private ScoClient getScoClient(IBinder cb, boolean create) { 1856 synchronized(mScoClients) { 1857 ScoClient client = null; 1858 int size = mScoClients.size(); 1859 for (int i = 0; i < size; i++) { 1860 client = mScoClients.get(i); 1861 if (client.getBinder() == cb) 1862 return client; 1863 } 1864 if (create) { 1865 client = new ScoClient(cb); 1866 mScoClients.add(client); 1867 } 1868 return client; 1869 } 1870 } 1871 1872 public void clearAllScoClients(int exceptPid, boolean stopSco) { 1873 synchronized(mScoClients) { 1874 ScoClient savedClient = null; 1875 int size = mScoClients.size(); 1876 for (int i = 0; i < size; i++) { 1877 ScoClient cl = mScoClients.get(i); 1878 if (cl.getPid() != exceptPid) { 1879 cl.clearCount(stopSco); 1880 } else { 1881 savedClient = cl; 1882 } 1883 } 1884 mScoClients.clear(); 1885 if (savedClient != null) { 1886 mScoClients.add(savedClient); 1887 } 1888 } 1889 } 1890 1891 private boolean getBluetoothHeadset() { 1892 boolean result = false; 1893 BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 1894 if (adapter != null) { 1895 result = adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener, 1896 BluetoothProfile.HEADSET); 1897 } 1898 // If we could not get a bluetooth headset proxy, send a failure message 1899 // without delay to reset the SCO audio state and clear SCO clients. 1900 // If we could get a proxy, send a delayed failure message that will reset our state 1901 // in case we don't receive onServiceConnected(). 1902 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 1903 SENDMSG_REPLACE, 0, 0, null, result ? BT_HEADSET_CNCT_TIMEOUT_MS : 0); 1904 return result; 1905 } 1906 1907 private void disconnectBluetoothSco(int exceptPid) { 1908 synchronized(mScoClients) { 1909 checkScoAudioState(); 1910 if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL || 1911 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1912 if (mBluetoothHeadsetDevice != null) { 1913 if (mBluetoothHeadset != null) { 1914 if (!mBluetoothHeadset.stopVoiceRecognition( 1915 mBluetoothHeadsetDevice)) { 1916 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 1917 SENDMSG_REPLACE, 0, 0, null, 0); 1918 } 1919 } else if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL && 1920 getBluetoothHeadset()) { 1921 mScoAudioState = SCO_STATE_DEACTIVATE_EXT_REQ; 1922 } 1923 } 1924 } else { 1925 clearAllScoClients(exceptPid, true); 1926 } 1927 } 1928 } 1929 1930 private void resetBluetoothSco() { 1931 synchronized(mScoClients) { 1932 clearAllScoClients(0, false); 1933 mScoAudioState = SCO_STATE_INACTIVE; 1934 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1935 } 1936 } 1937 1938 private void broadcastScoConnectionState(int state) { 1939 if (state != mScoConnectionState) { 1940 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED); 1941 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 1942 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_PREVIOUS_STATE, 1943 mScoConnectionState); 1944 mContext.sendStickyBroadcast(newIntent); 1945 mScoConnectionState = state; 1946 } 1947 } 1948 1949 private BluetoothProfile.ServiceListener mBluetoothProfileServiceListener = 1950 new BluetoothProfile.ServiceListener() { 1951 public void onServiceConnected(int profile, BluetoothProfile proxy) { 1952 BluetoothDevice btDevice; 1953 List<BluetoothDevice> deviceList; 1954 switch(profile) { 1955 case BluetoothProfile.A2DP: 1956 BluetoothA2dp a2dp = (BluetoothA2dp) proxy; 1957 deviceList = a2dp.getConnectedDevices(); 1958 if (deviceList.size() > 0) { 1959 btDevice = deviceList.get(0); 1960 synchronized (mConnectedDevices) { 1961 int state = a2dp.getConnectionState(btDevice); 1962 int delay = checkSendBecomingNoisyIntent( 1963 AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 1964 (state == BluetoothA2dp.STATE_CONNECTED) ? 1 : 0); 1965 sendMsg(mAudioHandler, 1966 MSG_SET_A2DP_CONNECTION_STATE, 1967 SENDMSG_QUEUE, 1968 state, 1969 0, 1970 btDevice, 1971 delay); 1972 } 1973 } 1974 break; 1975 1976 case BluetoothProfile.HEADSET: 1977 synchronized (mScoClients) { 1978 // Discard timeout message 1979 mAudioHandler.removeMessages(MSG_BT_HEADSET_CNCT_FAILED); 1980 mBluetoothHeadset = (BluetoothHeadset) proxy; 1981 deviceList = mBluetoothHeadset.getConnectedDevices(); 1982 if (deviceList.size() > 0) { 1983 mBluetoothHeadsetDevice = deviceList.get(0); 1984 } else { 1985 mBluetoothHeadsetDevice = null; 1986 } 1987 // Refresh SCO audio state 1988 checkScoAudioState(); 1989 // Continue pending action if any 1990 if (mScoAudioState == SCO_STATE_ACTIVATE_REQ || 1991 mScoAudioState == SCO_STATE_DEACTIVATE_REQ || 1992 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1993 boolean status = false; 1994 if (mBluetoothHeadsetDevice != null) { 1995 switch (mScoAudioState) { 1996 case SCO_STATE_ACTIVATE_REQ: 1997 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1998 status = mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1999 mBluetoothHeadsetDevice); 2000 break; 2001 case SCO_STATE_DEACTIVATE_REQ: 2002 status = mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 2003 mBluetoothHeadsetDevice); 2004 break; 2005 case SCO_STATE_DEACTIVATE_EXT_REQ: 2006 status = mBluetoothHeadset.stopVoiceRecognition( 2007 mBluetoothHeadsetDevice); 2008 } 2009 } 2010 if (!status) { 2011 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 2012 SENDMSG_REPLACE, 0, 0, null, 0); 2013 } 2014 } 2015 } 2016 break; 2017 2018 default: 2019 break; 2020 } 2021 } 2022 public void onServiceDisconnected(int profile) { 2023 switch(profile) { 2024 case BluetoothProfile.A2DP: 2025 synchronized (mConnectedDevices) { 2026 if (mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP)) { 2027 makeA2dpDeviceUnavailableNow( 2028 mConnectedDevices.get(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP)); 2029 } 2030 } 2031 break; 2032 2033 case BluetoothProfile.HEADSET: 2034 synchronized (mScoClients) { 2035 mBluetoothHeadset = null; 2036 } 2037 break; 2038 2039 default: 2040 break; 2041 } 2042 } 2043 }; 2044 2045 /////////////////////////////////////////////////////////////////////////// 2046 // Internal methods 2047 /////////////////////////////////////////////////////////////////////////// 2048 2049 /** 2050 * Checks if the adjustment should change ringer mode instead of just 2051 * adjusting volume. If so, this will set the proper ringer mode and volume 2052 * indices on the stream states. 2053 */ 2054 private boolean checkForRingerModeChange(int oldIndex, int direction, int step) { 2055 boolean adjustVolumeIndex = true; 2056 int ringerMode = getRingerMode(); 2057 2058 switch (ringerMode) { 2059 case RINGER_MODE_NORMAL: 2060 if (direction == AudioManager.ADJUST_LOWER) { 2061 if (mHasVibrator) { 2062 // "step" is the delta in internal index units corresponding to a 2063 // change of 1 in UI index units. 2064 // Because of rounding when rescaling from one stream index range to its alias 2065 // index range, we cannot simply test oldIndex == step: 2066 // (step <= oldIndex < 2 * step) is equivalent to: (old UI index == 1) 2067 if (step <= oldIndex && oldIndex < 2 * step) { 2068 ringerMode = RINGER_MODE_VIBRATE; 2069 } 2070 } else { 2071 // (oldIndex < step) is equivalent to (old UI index == 0) 2072 if ((oldIndex < step) && mPrevVolDirection != AudioManager.ADJUST_LOWER) { 2073 ringerMode = RINGER_MODE_SILENT; 2074 } 2075 } 2076 } 2077 break; 2078 case RINGER_MODE_VIBRATE: 2079 if (!mHasVibrator) { 2080 Log.e(TAG, "checkForRingerModeChange() current ringer mode is vibrate" + 2081 "but no vibrator is present"); 2082 break; 2083 } 2084 if ((direction == AudioManager.ADJUST_LOWER)) { 2085 if (mPrevVolDirection != AudioManager.ADJUST_LOWER) { 2086 ringerMode = RINGER_MODE_SILENT; 2087 } 2088 } else if (direction == AudioManager.ADJUST_RAISE) { 2089 ringerMode = RINGER_MODE_NORMAL; 2090 } 2091 adjustVolumeIndex = false; 2092 break; 2093 case RINGER_MODE_SILENT: 2094 if (direction == AudioManager.ADJUST_RAISE) { 2095 if (mHasVibrator) { 2096 ringerMode = RINGER_MODE_VIBRATE; 2097 } else { 2098 ringerMode = RINGER_MODE_NORMAL; 2099 } 2100 } 2101 adjustVolumeIndex = false; 2102 break; 2103 default: 2104 Log.e(TAG, "checkForRingerModeChange() wrong ringer mode: "+ringerMode); 2105 break; 2106 } 2107 2108 setRingerMode(ringerMode); 2109 2110 mPrevVolDirection = direction; 2111 2112 return adjustVolumeIndex; 2113 } 2114 2115 public boolean isStreamAffectedByRingerMode(int streamType) { 2116 return (mRingerModeAffectedStreams & (1 << streamType)) != 0; 2117 } 2118 2119 private boolean isStreamMutedByRingerMode(int streamType) { 2120 return (mRingerModeMutedStreams & (1 << streamType)) != 0; 2121 } 2122 2123 public boolean isStreamAffectedByMute(int streamType) { 2124 return (mMuteAffectedStreams & (1 << streamType)) != 0; 2125 } 2126 2127 private void ensureValidDirection(int direction) { 2128 if (direction < AudioManager.ADJUST_LOWER || direction > AudioManager.ADJUST_RAISE) { 2129 throw new IllegalArgumentException("Bad direction " + direction); 2130 } 2131 } 2132 2133 private void ensureValidSteps(int steps) { 2134 if (Math.abs(steps) > MAX_BATCH_VOLUME_ADJUST_STEPS) { 2135 throw new IllegalArgumentException("Bad volume adjust steps " + steps); 2136 } 2137 } 2138 2139 private void ensureValidStreamType(int streamType) { 2140 if (streamType < 0 || streamType >= mStreamStates.length) { 2141 throw new IllegalArgumentException("Bad stream type " + streamType); 2142 } 2143 } 2144 2145 private boolean isInCommunication() { 2146 boolean isOffhook = false; 2147 2148 if (mVoiceCapable) { 2149 try { 2150 ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); 2151 if (phone != null) isOffhook = phone.isOffhook(); 2152 } catch (RemoteException e) { 2153 Log.w(TAG, "Couldn't connect to phone service", e); 2154 } 2155 } 2156 return (isOffhook || getMode() == AudioManager.MODE_IN_COMMUNICATION); 2157 } 2158 2159 private int getActiveStreamType(int suggestedStreamType) { 2160 if (mVoiceCapable) { 2161 if (isInCommunication()) { 2162 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 2163 == AudioSystem.FORCE_BT_SCO) { 2164 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 2165 return AudioSystem.STREAM_BLUETOOTH_SCO; 2166 } else { 2167 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 2168 return AudioSystem.STREAM_VOICE_CALL; 2169 } 2170 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0)) { 2171 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC..."); 2172 return AudioSystem.STREAM_MUSIC; 2173 } else if (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) { 2174 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_RING..." 2175 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 2176 return AudioSystem.STREAM_RING; 2177 } else { 2178 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 2179 return suggestedStreamType; 2180 } 2181 } else { 2182 if (isInCommunication()) { 2183 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 2184 == AudioSystem.FORCE_BT_SCO) { 2185 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 2186 return AudioSystem.STREAM_BLUETOOTH_SCO; 2187 } else { 2188 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 2189 return AudioSystem.STREAM_VOICE_CALL; 2190 } 2191 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_NOTIFICATION, 2192 NOTIFICATION_VOLUME_DELAY_MS) || 2193 AudioSystem.isStreamActive(AudioSystem.STREAM_RING, 2194 NOTIFICATION_VOLUME_DELAY_MS)) { 2195 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_NOTIFICATION..."); 2196 return AudioSystem.STREAM_NOTIFICATION; 2197 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0) || 2198 (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE)) { 2199 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC " 2200 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 2201 return AudioSystem.STREAM_MUSIC; 2202 } else { 2203 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 2204 return suggestedStreamType; 2205 } 2206 } 2207 } 2208 2209 private void broadcastRingerMode(int ringerMode) { 2210 // Send sticky broadcast 2211 Intent broadcast = new Intent(AudioManager.RINGER_MODE_CHANGED_ACTION); 2212 broadcast.putExtra(AudioManager.EXTRA_RINGER_MODE, ringerMode); 2213 broadcast.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT 2214 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 2215 long origCallerIdentityToken = Binder.clearCallingIdentity(); 2216 mContext.sendStickyBroadcast(broadcast); 2217 Binder.restoreCallingIdentity(origCallerIdentityToken); 2218 } 2219 2220 private void broadcastVibrateSetting(int vibrateType) { 2221 // Send broadcast 2222 if (ActivityManagerNative.isSystemReady()) { 2223 Intent broadcast = new Intent(AudioManager.VIBRATE_SETTING_CHANGED_ACTION); 2224 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_TYPE, vibrateType); 2225 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_SETTING, getVibrateSetting(vibrateType)); 2226 mContext.sendBroadcast(broadcast); 2227 } 2228 } 2229 2230 // Message helper methods 2231 /** 2232 * Queue a message on the given handler's message queue, after acquiring the service wake lock. 2233 * Note that the wake lock needs to be released after the message has been handled. 2234 */ 2235 private void queueMsgUnderWakeLock(Handler handler, int msg, 2236 int arg1, int arg2, Object obj, int delay) { 2237 mMediaEventWakeLock.acquire(); 2238 sendMsg(handler, msg, SENDMSG_QUEUE, arg1, arg2, obj, delay); 2239 } 2240 2241 private static void sendMsg(Handler handler, int msg, 2242 int existingMsgPolicy, int arg1, int arg2, Object obj, int delay) { 2243 2244 if (existingMsgPolicy == SENDMSG_REPLACE) { 2245 handler.removeMessages(msg); 2246 } else if (existingMsgPolicy == SENDMSG_NOOP && handler.hasMessages(msg)) { 2247 return; 2248 } 2249 2250 handler.sendMessageDelayed(handler.obtainMessage(msg, arg1, arg2, obj), delay); 2251 } 2252 2253 boolean checkAudioSettingsPermission(String method) { 2254 if (mContext.checkCallingOrSelfPermission("android.permission.MODIFY_AUDIO_SETTINGS") 2255 == PackageManager.PERMISSION_GRANTED) { 2256 return true; 2257 } 2258 String msg = "Audio Settings Permission Denial: " + method + " from pid=" 2259 + Binder.getCallingPid() 2260 + ", uid=" + Binder.getCallingUid(); 2261 Log.w(TAG, msg); 2262 return false; 2263 } 2264 2265 private int getDeviceForStream(int stream) { 2266 int device = AudioSystem.getDevicesForStream(stream); 2267 if ((device & (device - 1)) != 0) { 2268 // Multiple device selection is either: 2269 // - speaker + one other device: give priority to speaker in this case. 2270 // - one A2DP device + another device: happens with duplicated output. In this case 2271 // retain the device on the A2DP output as the other must not correspond to an active 2272 // selection if not the speaker. 2273 if ((device & AudioSystem.DEVICE_OUT_SPEAKER) != 0) { 2274 device = AudioSystem.DEVICE_OUT_SPEAKER; 2275 } else { 2276 device &= AudioSystem.DEVICE_OUT_ALL_A2DP; 2277 } 2278 } 2279 return device; 2280 } 2281 2282 public void setWiredDeviceConnectionState(int device, int state, String name) { 2283 synchronized (mConnectedDevices) { 2284 int delay = checkSendBecomingNoisyIntent(device, state); 2285 queueMsgUnderWakeLock(mAudioHandler, 2286 MSG_SET_WIRED_DEVICE_CONNECTION_STATE, 2287 device, 2288 state, 2289 name, 2290 delay); 2291 } 2292 } 2293 2294 public int setBluetoothA2dpDeviceConnectionState(BluetoothDevice device, int state) 2295 { 2296 int delay; 2297 synchronized (mConnectedDevices) { 2298 delay = checkSendBecomingNoisyIntent(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2299 (state == BluetoothA2dp.STATE_CONNECTED) ? 1 : 0); 2300 queueMsgUnderWakeLock(mAudioHandler, 2301 MSG_SET_A2DP_CONNECTION_STATE, 2302 state, 2303 0, 2304 device, 2305 delay); 2306 } 2307 return delay; 2308 } 2309 2310 /////////////////////////////////////////////////////////////////////////// 2311 // Inner classes 2312 /////////////////////////////////////////////////////////////////////////// 2313 2314 public class VolumeStreamState { 2315 private final int mStreamType; 2316 2317 private String mVolumeIndexSettingName; 2318 private String mLastAudibleVolumeIndexSettingName; 2319 private int mIndexMax; 2320 private final ConcurrentHashMap<Integer, Integer> mIndex = 2321 new ConcurrentHashMap<Integer, Integer>(8, 0.75f, 4); 2322 private final ConcurrentHashMap<Integer, Integer> mLastAudibleIndex = 2323 new ConcurrentHashMap<Integer, Integer>(8, 0.75f, 4); 2324 private ArrayList<VolumeDeathHandler> mDeathHandlers; //handles mute/solo clients death 2325 2326 private VolumeStreamState(String settingName, int streamType) { 2327 2328 mVolumeIndexSettingName = settingName; 2329 mLastAudibleVolumeIndexSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 2330 2331 mStreamType = streamType; 2332 mIndexMax = MAX_STREAM_VOLUME[streamType]; 2333 AudioSystem.initStreamVolume(streamType, 0, mIndexMax); 2334 mIndexMax *= 10; 2335 2336 readSettings(); 2337 2338 mDeathHandlers = new ArrayList<VolumeDeathHandler>(); 2339 } 2340 2341 public String getSettingNameForDevice(boolean lastAudible, int device) { 2342 String name = lastAudible ? 2343 mLastAudibleVolumeIndexSettingName : 2344 mVolumeIndexSettingName; 2345 String suffix = AudioSystem.getDeviceName(device); 2346 if (suffix.isEmpty()) { 2347 return name; 2348 } 2349 return name + "_" + suffix; 2350 } 2351 2352 public synchronized void readSettings() { 2353 int remainingDevices = AudioSystem.DEVICE_OUT_ALL; 2354 2355 for (int i = 0; remainingDevices != 0; i++) { 2356 int device = (1 << i); 2357 if ((device & remainingDevices) == 0) { 2358 continue; 2359 } 2360 remainingDevices &= ~device; 2361 2362 // retrieve current volume for device 2363 String name = getSettingNameForDevice(false /* lastAudible */, device); 2364 // if no volume stored for current stream and device, use default volume if default 2365 // device, continue otherwise 2366 int defaultIndex = (device == AudioSystem.DEVICE_OUT_DEFAULT) ? 2367 AudioManager.DEFAULT_STREAM_VOLUME[mStreamType] : -1; 2368 int index = Settings.System.getInt(mContentResolver, name, defaultIndex); 2369 if (index == -1) { 2370 continue; 2371 } 2372 2373 // retrieve last audible volume for device 2374 name = getSettingNameForDevice(true /* lastAudible */, device); 2375 // use stored last audible index if present, otherwise use current index if not 0 2376 // or default index 2377 defaultIndex = (index > 0) ? 2378 index : AudioManager.DEFAULT_STREAM_VOLUME[mStreamType]; 2379 int lastAudibleIndex = Settings.System.getInt(mContentResolver, name, defaultIndex); 2380 2381 // a last audible index of 0 should never be stored for ring and notification 2382 // streams on phones (voice capable devices). 2383 // same for system stream on phones and tablets 2384 if ((lastAudibleIndex == 0) && 2385 ((mVoiceCapable && 2386 (mStreamVolumeAlias[mStreamType] == AudioSystem.STREAM_RING)) || 2387 (mStreamVolumeAlias[mStreamType] == AudioSystem.STREAM_SYSTEM))) { 2388 lastAudibleIndex = AudioManager.DEFAULT_STREAM_VOLUME[mStreamType]; 2389 // Correct the data base 2390 sendMsg(mAudioHandler, 2391 MSG_PERSIST_VOLUME, 2392 SENDMSG_QUEUE, 2393 PERSIST_LAST_AUDIBLE, 2394 device, 2395 this, 2396 PERSIST_DELAY); 2397 } 2398 mLastAudibleIndex.put(device, getValidIndex(10 * lastAudibleIndex)); 2399 // the initial index should never be 0 for ring and notification streams on phones 2400 // (voice capable devices) if not in silent or vibrate mode. 2401 // same for system stream on phones and tablets 2402 if ((index == 0) && (mRingerMode == AudioManager.RINGER_MODE_NORMAL) && 2403 ((mVoiceCapable && 2404 (mStreamVolumeAlias[mStreamType] == AudioSystem.STREAM_RING)) || 2405 (mStreamVolumeAlias[mStreamType] == AudioSystem.STREAM_SYSTEM))) { 2406 index = lastAudibleIndex; 2407 // Correct the data base 2408 sendMsg(mAudioHandler, 2409 MSG_PERSIST_VOLUME, 2410 SENDMSG_QUEUE, 2411 PERSIST_CURRENT, 2412 device, 2413 this, 2414 PERSIST_DELAY); 2415 } 2416 mIndex.put(device, getValidIndex(10 * index)); 2417 } 2418 } 2419 2420 public void applyDeviceVolume(int device) { 2421 AudioSystem.setStreamVolumeIndex(mStreamType, 2422 (getIndex(device, false /* lastAudible */) + 5)/10, 2423 device); 2424 } 2425 2426 public synchronized void applyAllVolumes() { 2427 // apply default volume first: by convention this will reset all 2428 // devices volumes in audio policy manager to the supplied value 2429 AudioSystem.setStreamVolumeIndex(mStreamType, 2430 (getIndex(AudioSystem.DEVICE_OUT_DEFAULT, false /* lastAudible */) + 5)/10, 2431 AudioSystem.DEVICE_OUT_DEFAULT); 2432 // then apply device specific volumes 2433 Set set = mIndex.entrySet(); 2434 Iterator i = set.iterator(); 2435 while (i.hasNext()) { 2436 Map.Entry entry = (Map.Entry)i.next(); 2437 int device = ((Integer)entry.getKey()).intValue(); 2438 if (device != AudioSystem.DEVICE_OUT_DEFAULT) { 2439 AudioSystem.setStreamVolumeIndex(mStreamType, 2440 ((Integer)entry.getValue() + 5)/10, 2441 device); 2442 } 2443 } 2444 } 2445 2446 public boolean adjustIndex(int deltaIndex, int device) { 2447 return setIndex(getIndex(device, 2448 false /* lastAudible */) + deltaIndex, 2449 device, 2450 true /* lastAudible */); 2451 } 2452 2453 public synchronized boolean setIndex(int index, int device, boolean lastAudible) { 2454 int oldIndex = getIndex(device, false /* lastAudible */); 2455 index = getValidIndex(index); 2456 mIndex.put(device, getValidIndex(index)); 2457 2458 if (oldIndex != index) { 2459 if (lastAudible) { 2460 mLastAudibleIndex.put(device, index); 2461 } 2462 // Apply change to all streams using this one as alias 2463 // if changing volume of current device, also change volume of current 2464 // device on aliased stream 2465 boolean currentDevice = (device == getDeviceForStream(mStreamType)); 2466 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2467 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2468 if (streamType != mStreamType && 2469 mStreamVolumeAlias[streamType] == mStreamType) { 2470 int scaledIndex = rescaleIndex(index, mStreamType, streamType); 2471 mStreamStates[streamType].setIndex(scaledIndex, 2472 device, 2473 lastAudible); 2474 if (currentDevice) { 2475 mStreamStates[streamType].setIndex(scaledIndex, 2476 getDeviceForStream(streamType), 2477 lastAudible); 2478 } 2479 } 2480 } 2481 return true; 2482 } else { 2483 return false; 2484 } 2485 } 2486 2487 public synchronized int getIndex(int device, boolean lastAudible) { 2488 ConcurrentHashMap <Integer, Integer> indexes; 2489 if (lastAudible) { 2490 indexes = mLastAudibleIndex; 2491 } else { 2492 indexes = mIndex; 2493 } 2494 Integer index = indexes.get(device); 2495 if (index == null) { 2496 // there is always an entry for AudioSystem.DEVICE_OUT_DEFAULT 2497 index = indexes.get(AudioSystem.DEVICE_OUT_DEFAULT); 2498 } 2499 return index.intValue(); 2500 } 2501 2502 public synchronized void setLastAudibleIndex(int index, int device) { 2503 // Apply change to all streams using this one as alias 2504 // if changing volume of current device, also change volume of current 2505 // device on aliased stream 2506 boolean currentDevice = (device == getDeviceForStream(mStreamType)); 2507 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2508 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2509 if (streamType != mStreamType && 2510 mStreamVolumeAlias[streamType] == mStreamType) { 2511 int scaledIndex = rescaleIndex(index, mStreamType, streamType); 2512 mStreamStates[streamType].setLastAudibleIndex(scaledIndex, device); 2513 if (currentDevice) { 2514 mStreamStates[streamType].setLastAudibleIndex(scaledIndex, 2515 getDeviceForStream(streamType)); 2516 } 2517 } 2518 } 2519 mLastAudibleIndex.put(device, getValidIndex(index)); 2520 } 2521 2522 public synchronized void adjustLastAudibleIndex(int deltaIndex, int device) { 2523 setLastAudibleIndex(getIndex(device, 2524 true /* lastAudible */) + deltaIndex, 2525 device); 2526 } 2527 2528 public int getMaxIndex() { 2529 return mIndexMax; 2530 } 2531 2532 // only called by setAllIndexes() which is already synchronized 2533 public ConcurrentHashMap <Integer, Integer> getAllIndexes(boolean lastAudible) { 2534 if (lastAudible) { 2535 return mLastAudibleIndex; 2536 } else { 2537 return mIndex; 2538 } 2539 } 2540 2541 public synchronized void setAllIndexes(VolumeStreamState srcStream, boolean lastAudible) { 2542 ConcurrentHashMap <Integer, Integer> indexes = srcStream.getAllIndexes(lastAudible); 2543 Set set = indexes.entrySet(); 2544 Iterator i = set.iterator(); 2545 while (i.hasNext()) { 2546 Map.Entry entry = (Map.Entry)i.next(); 2547 int device = ((Integer)entry.getKey()).intValue(); 2548 int index = ((Integer)entry.getValue()).intValue(); 2549 index = rescaleIndex(index, srcStream.getStreamType(), mStreamType); 2550 setIndex(index, device, lastAudible); 2551 } 2552 } 2553 2554 public synchronized void mute(IBinder cb, boolean state) { 2555 VolumeDeathHandler handler = getDeathHandler(cb, state); 2556 if (handler == null) { 2557 Log.e(TAG, "Could not get client death handler for stream: "+mStreamType); 2558 return; 2559 } 2560 handler.mute(state); 2561 } 2562 2563 public int getStreamType() { 2564 return mStreamType; 2565 } 2566 2567 private int getValidIndex(int index) { 2568 if (index < 0) { 2569 return 0; 2570 } else if (index > mIndexMax) { 2571 return mIndexMax; 2572 } 2573 2574 return index; 2575 } 2576 2577 private class VolumeDeathHandler implements IBinder.DeathRecipient { 2578 private IBinder mICallback; // To be notified of client's death 2579 private int mMuteCount; // Number of active mutes for this client 2580 2581 VolumeDeathHandler(IBinder cb) { 2582 mICallback = cb; 2583 } 2584 2585 // must be called while synchronized on parent VolumeStreamState 2586 public void mute(boolean state) { 2587 if (state) { 2588 if (mMuteCount == 0) { 2589 // Register for client death notification 2590 try { 2591 // mICallback can be 0 if muted by AudioService 2592 if (mICallback != null) { 2593 mICallback.linkToDeath(this, 0); 2594 } 2595 mDeathHandlers.add(this); 2596 // If the stream is not yet muted by any client, set level to 0 2597 if (muteCount() == 0) { 2598 Set set = mIndex.entrySet(); 2599 Iterator i = set.iterator(); 2600 while (i.hasNext()) { 2601 Map.Entry entry = (Map.Entry)i.next(); 2602 int device = ((Integer)entry.getKey()).intValue(); 2603 setIndex(0, device, false /* lastAudible */); 2604 } 2605 sendMsg(mAudioHandler, 2606 MSG_SET_ALL_VOLUMES, 2607 SENDMSG_QUEUE, 2608 0, 2609 0, 2610 VolumeStreamState.this, 0); 2611 } 2612 } catch (RemoteException e) { 2613 // Client has died! 2614 binderDied(); 2615 return; 2616 } 2617 } else { 2618 Log.w(TAG, "stream: "+mStreamType+" was already muted by this client"); 2619 } 2620 mMuteCount++; 2621 } else { 2622 if (mMuteCount == 0) { 2623 Log.e(TAG, "unexpected unmute for stream: "+mStreamType); 2624 } else { 2625 mMuteCount--; 2626 if (mMuteCount == 0) { 2627 // Unregister from client death notification 2628 mDeathHandlers.remove(this); 2629 // mICallback can be 0 if muted by AudioService 2630 if (mICallback != null) { 2631 mICallback.unlinkToDeath(this, 0); 2632 } 2633 if (muteCount() == 0) { 2634 // If the stream is not muted any more, restore its volume if 2635 // ringer mode allows it 2636 if (!isStreamAffectedByRingerMode(mStreamType) || 2637 mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 2638 Set set = mIndex.entrySet(); 2639 Iterator i = set.iterator(); 2640 while (i.hasNext()) { 2641 Map.Entry entry = (Map.Entry)i.next(); 2642 int device = ((Integer)entry.getKey()).intValue(); 2643 setIndex(getIndex(device, 2644 true /* lastAudible */), 2645 device, 2646 false /* lastAudible */); 2647 } 2648 sendMsg(mAudioHandler, 2649 MSG_SET_ALL_VOLUMES, 2650 SENDMSG_QUEUE, 2651 0, 2652 0, 2653 VolumeStreamState.this, 0); 2654 } 2655 } 2656 } 2657 } 2658 } 2659 } 2660 2661 public void binderDied() { 2662 Log.w(TAG, "Volume service client died for stream: "+mStreamType); 2663 if (mMuteCount != 0) { 2664 // Reset all active mute requests from this client. 2665 mMuteCount = 1; 2666 mute(false); 2667 } 2668 } 2669 } 2670 2671 private synchronized int muteCount() { 2672 int count = 0; 2673 int size = mDeathHandlers.size(); 2674 for (int i = 0; i < size; i++) { 2675 count += mDeathHandlers.get(i).mMuteCount; 2676 } 2677 return count; 2678 } 2679 2680 // only called by mute() which is already synchronized 2681 private VolumeDeathHandler getDeathHandler(IBinder cb, boolean state) { 2682 VolumeDeathHandler handler; 2683 int size = mDeathHandlers.size(); 2684 for (int i = 0; i < size; i++) { 2685 handler = mDeathHandlers.get(i); 2686 if (cb == handler.mICallback) { 2687 return handler; 2688 } 2689 } 2690 // If this is the first mute request for this client, create a new 2691 // client death handler. Otherwise, it is an out of sequence unmute request. 2692 if (state) { 2693 handler = new VolumeDeathHandler(cb); 2694 } else { 2695 Log.w(TAG, "stream was not muted by this client"); 2696 handler = null; 2697 } 2698 return handler; 2699 } 2700 2701 private void dump(PrintWriter pw) { 2702 pw.print(" Current: "); 2703 Set set = mIndex.entrySet(); 2704 Iterator i = set.iterator(); 2705 while (i.hasNext()) { 2706 Map.Entry entry = (Map.Entry)i.next(); 2707 pw.print(Integer.toHexString(((Integer)entry.getKey()).intValue()) 2708 + ": " + ((((Integer)entry.getValue()).intValue() + 5) / 10)+", "); 2709 } 2710 pw.print("\n Last audible: "); 2711 set = mLastAudibleIndex.entrySet(); 2712 i = set.iterator(); 2713 while (i.hasNext()) { 2714 Map.Entry entry = (Map.Entry)i.next(); 2715 pw.print(Integer.toHexString(((Integer)entry.getKey()).intValue()) 2716 + ": " + ((((Integer)entry.getValue()).intValue() + 5) / 10)+", "); 2717 } 2718 } 2719 } 2720 2721 /** Thread that handles native AudioSystem control. */ 2722 private class AudioSystemThread extends Thread { 2723 AudioSystemThread() { 2724 super("AudioService"); 2725 } 2726 2727 @Override 2728 public void run() { 2729 // Set this thread up so the handler will work on it 2730 Looper.prepare(); 2731 2732 synchronized(AudioService.this) { 2733 mAudioHandler = new AudioHandler(); 2734 2735 // Notify that the handler has been created 2736 AudioService.this.notify(); 2737 } 2738 2739 // Listen for volume change requests that are set by VolumePanel 2740 Looper.loop(); 2741 } 2742 } 2743 2744 /** Handles internal volume messages in separate volume thread. */ 2745 private class AudioHandler extends Handler { 2746 2747 private void setDeviceVolume(VolumeStreamState streamState, int device) { 2748 2749 // Apply volume 2750 streamState.applyDeviceVolume(device); 2751 2752 // Apply change to all streams using this one as alias 2753 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2754 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2755 if (streamType != streamState.mStreamType && 2756 mStreamVolumeAlias[streamType] == streamState.mStreamType) { 2757 mStreamStates[streamType].applyDeviceVolume(getDeviceForStream(streamType)); 2758 } 2759 } 2760 2761 // Post a persist volume msg 2762 sendMsg(mAudioHandler, 2763 MSG_PERSIST_VOLUME, 2764 SENDMSG_QUEUE, 2765 PERSIST_CURRENT|PERSIST_LAST_AUDIBLE, 2766 device, 2767 streamState, 2768 PERSIST_DELAY); 2769 2770 } 2771 2772 private void setAllVolumes(VolumeStreamState streamState) { 2773 2774 // Apply volume 2775 streamState.applyAllVolumes(); 2776 2777 // Apply change to all streams using this one as alias 2778 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2779 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2780 if (streamType != streamState.mStreamType && 2781 mStreamVolumeAlias[streamType] == streamState.mStreamType) { 2782 mStreamStates[streamType].applyAllVolumes(); 2783 } 2784 } 2785 } 2786 2787 private void persistVolume(VolumeStreamState streamState, 2788 int persistType, 2789 int device) { 2790 if ((persistType & PERSIST_CURRENT) != 0) { 2791 System.putInt(mContentResolver, 2792 streamState.getSettingNameForDevice(false /* lastAudible */, device), 2793 (streamState.getIndex(device, false /* lastAudible */) + 5)/ 10); 2794 } 2795 if ((persistType & PERSIST_LAST_AUDIBLE) != 0) { 2796 System.putInt(mContentResolver, 2797 streamState.getSettingNameForDevice(true /* lastAudible */, device), 2798 (streamState.getIndex(device, true /* lastAudible */) + 5) / 10); 2799 } 2800 } 2801 2802 private void persistRingerMode(int ringerMode) { 2803 System.putInt(mContentResolver, System.MODE_RINGER, ringerMode); 2804 } 2805 2806 private void playSoundEffect(int effectType, int volume) { 2807 synchronized (mSoundEffectsLock) { 2808 if (mSoundPool == null) { 2809 return; 2810 } 2811 float volFloat; 2812 // use default if volume is not specified by caller 2813 if (volume < 0) { 2814 volFloat = (float)Math.pow(10, SOUND_EFFECT_VOLUME_DB/20); 2815 } else { 2816 volFloat = (float) volume / 1000.0f; 2817 } 2818 2819 if (SOUND_EFFECT_FILES_MAP[effectType][1] > 0) { 2820 mSoundPool.play(SOUND_EFFECT_FILES_MAP[effectType][1], volFloat, volFloat, 0, 0, 1.0f); 2821 } else { 2822 MediaPlayer mediaPlayer = new MediaPlayer(); 2823 try { 2824 String filePath = Environment.getRootDirectory() + SOUND_EFFECTS_PATH + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effectType][0]]; 2825 mediaPlayer.setDataSource(filePath); 2826 mediaPlayer.setAudioStreamType(AudioSystem.STREAM_SYSTEM); 2827 mediaPlayer.prepare(); 2828 mediaPlayer.setVolume(volFloat, volFloat); 2829 mediaPlayer.setOnCompletionListener(new OnCompletionListener() { 2830 public void onCompletion(MediaPlayer mp) { 2831 cleanupPlayer(mp); 2832 } 2833 }); 2834 mediaPlayer.setOnErrorListener(new OnErrorListener() { 2835 public boolean onError(MediaPlayer mp, int what, int extra) { 2836 cleanupPlayer(mp); 2837 return true; 2838 } 2839 }); 2840 mediaPlayer.start(); 2841 } catch (IOException ex) { 2842 Log.w(TAG, "MediaPlayer IOException: "+ex); 2843 } catch (IllegalArgumentException ex) { 2844 Log.w(TAG, "MediaPlayer IllegalArgumentException: "+ex); 2845 } catch (IllegalStateException ex) { 2846 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2847 } 2848 } 2849 } 2850 } 2851 2852 private void onHandlePersistMediaButtonReceiver(ComponentName receiver) { 2853 Settings.System.putString(mContentResolver, Settings.System.MEDIA_BUTTON_RECEIVER, 2854 receiver == null ? "" : receiver.flattenToString()); 2855 } 2856 2857 private void cleanupPlayer(MediaPlayer mp) { 2858 if (mp != null) { 2859 try { 2860 mp.stop(); 2861 mp.release(); 2862 } catch (IllegalStateException ex) { 2863 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2864 } 2865 } 2866 } 2867 2868 private void setForceUse(int usage, int config) { 2869 AudioSystem.setForceUse(usage, config); 2870 } 2871 2872 @Override 2873 public void handleMessage(Message msg) { 2874 2875 switch (msg.what) { 2876 2877 case MSG_SET_DEVICE_VOLUME: 2878 setDeviceVolume((VolumeStreamState) msg.obj, msg.arg1); 2879 break; 2880 2881 case MSG_SET_ALL_VOLUMES: 2882 setAllVolumes((VolumeStreamState) msg.obj); 2883 break; 2884 2885 case MSG_PERSIST_VOLUME: 2886 persistVolume((VolumeStreamState) msg.obj, msg.arg1, msg.arg2); 2887 break; 2888 2889 case MSG_PERSIST_MASTER_VOLUME: 2890 Settings.System.putFloat(mContentResolver, Settings.System.VOLUME_MASTER, 2891 (float)msg.arg1 / (float)1000.0); 2892 break; 2893 2894 case MSG_PERSIST_MASTER_VOLUME_MUTE: 2895 Settings.System.putInt(mContentResolver, Settings.System.VOLUME_MASTER_MUTE, 2896 msg.arg1); 2897 break; 2898 2899 case MSG_PERSIST_RINGER_MODE: 2900 // note that the value persisted is the current ringer mode, not the 2901 // value of ringer mode as of the time the request was made to persist 2902 persistRingerMode(getRingerMode()); 2903 break; 2904 2905 case MSG_MEDIA_SERVER_DIED: 2906 if (!mMediaServerOk) { 2907 Log.e(TAG, "Media server died."); 2908 // Force creation of new IAudioFlinger interface so that we are notified 2909 // when new media_server process is back to life. 2910 AudioSystem.setErrorCallback(mAudioSystemCallback); 2911 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SENDMSG_NOOP, 0, 0, 2912 null, 500); 2913 } 2914 break; 2915 2916 case MSG_MEDIA_SERVER_STARTED: 2917 Log.e(TAG, "Media server started."); 2918 // indicate to audio HAL that we start the reconfiguration phase after a media 2919 // server crash 2920 // Note that MSG_MEDIA_SERVER_STARTED message is only received when the media server 2921 // process restarts after a crash, not the first time it is started. 2922 AudioSystem.setParameters("restarting=true"); 2923 2924 // Restore device connection states 2925 synchronized (mConnectedDevices) { 2926 Set set = mConnectedDevices.entrySet(); 2927 Iterator i = set.iterator(); 2928 while (i.hasNext()) { 2929 Map.Entry device = (Map.Entry)i.next(); 2930 AudioSystem.setDeviceConnectionState( 2931 ((Integer)device.getKey()).intValue(), 2932 AudioSystem.DEVICE_STATE_AVAILABLE, 2933 (String)device.getValue()); 2934 } 2935 } 2936 // Restore call state 2937 AudioSystem.setPhoneState(mMode); 2938 2939 // Restore forced usage for communcations and record 2940 AudioSystem.setForceUse(AudioSystem.FOR_COMMUNICATION, mForcedUseForComm); 2941 AudioSystem.setForceUse(AudioSystem.FOR_RECORD, mForcedUseForComm); 2942 2943 // Restore stream volumes 2944 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2945 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2946 VolumeStreamState streamState = mStreamStates[streamType]; 2947 AudioSystem.initStreamVolume(streamType, 0, (streamState.mIndexMax + 5) / 10); 2948 2949 streamState.applyAllVolumes(); 2950 } 2951 2952 // Restore ringer mode 2953 setRingerModeInt(getRingerMode(), false); 2954 2955 // Restore master volume 2956 restoreMasterVolume(); 2957 2958 // Reset device orientation (if monitored for this device) 2959 if (SystemProperties.getBoolean("ro.audio.monitorOrientation", false)) { 2960 setOrientationForAudioSystem(); 2961 } 2962 2963 synchronized (mBluetoothA2dpEnabledLock) { 2964 AudioSystem.setForceUse(AudioSystem.FOR_MEDIA, 2965 mBluetoothA2dpEnabled ? 2966 AudioSystem.FORCE_NONE : AudioSystem.FORCE_NO_BT_A2DP); 2967 } 2968 // indicate the end of reconfiguration phase to audio HAL 2969 AudioSystem.setParameters("restarting=false"); 2970 break; 2971 2972 case MSG_LOAD_SOUND_EFFECTS: 2973 loadSoundEffects(); 2974 break; 2975 2976 case MSG_PLAY_SOUND_EFFECT: 2977 playSoundEffect(msg.arg1, msg.arg2); 2978 break; 2979 2980 case MSG_BTA2DP_DOCK_TIMEOUT: 2981 // msg.obj == address of BTA2DP device 2982 synchronized (mConnectedDevices) { 2983 makeA2dpDeviceUnavailableNow( (String) msg.obj ); 2984 } 2985 break; 2986 2987 case MSG_SET_FORCE_USE: 2988 setForceUse(msg.arg1, msg.arg2); 2989 break; 2990 2991 case MSG_PERSIST_MEDIABUTTONRECEIVER: 2992 onHandlePersistMediaButtonReceiver( (ComponentName) msg.obj ); 2993 break; 2994 2995 case MSG_RCDISPLAY_CLEAR: 2996 onRcDisplayClear(); 2997 break; 2998 2999 case MSG_RCDISPLAY_UPDATE: 3000 // msg.obj is guaranteed to be non null 3001 onRcDisplayUpdate( (RemoteControlStackEntry) msg.obj, msg.arg1); 3002 break; 3003 3004 case MSG_BT_HEADSET_CNCT_FAILED: 3005 resetBluetoothSco(); 3006 break; 3007 3008 case MSG_SET_WIRED_DEVICE_CONNECTION_STATE: 3009 onSetWiredDeviceConnectionState(msg.arg1, msg.arg2, (String)msg.obj); 3010 mMediaEventWakeLock.release(); 3011 break; 3012 3013 case MSG_SET_A2DP_CONNECTION_STATE: 3014 onSetA2dpConnectionState((BluetoothDevice)msg.obj, msg.arg1); 3015 mMediaEventWakeLock.release(); 3016 break; 3017 } 3018 } 3019 } 3020 3021 private class SettingsObserver extends ContentObserver { 3022 3023 SettingsObserver() { 3024 super(new Handler()); 3025 mContentResolver.registerContentObserver(Settings.System.getUriFor( 3026 Settings.System.MODE_RINGER_STREAMS_AFFECTED), false, this); 3027 } 3028 3029 @Override 3030 public void onChange(boolean selfChange) { 3031 super.onChange(selfChange); 3032 // FIXME This synchronized is not necessary if mSettingsLock only protects mRingerMode. 3033 // However there appear to be some missing locks around mRingerModeMutedStreams 3034 // and mRingerModeAffectedStreams, so will leave this synchronized for now. 3035 // mRingerModeMutedStreams and mMuteAffectedStreams are safe (only accessed once). 3036 synchronized (mSettingsLock) { 3037 int ringerModeAffectedStreams = Settings.System.getInt(mContentResolver, 3038 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 3039 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 3040 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 3041 if (mVoiceCapable) { 3042 ringerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 3043 } else { 3044 ringerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 3045 } 3046 if (ringerModeAffectedStreams != mRingerModeAffectedStreams) { 3047 /* 3048 * Ensure all stream types that should be affected by ringer mode 3049 * are in the proper state. 3050 */ 3051 mRingerModeAffectedStreams = ringerModeAffectedStreams; 3052 setRingerModeInt(getRingerMode(), false); 3053 } 3054 } 3055 } 3056 } 3057 3058 // must be called synchronized on mConnectedDevices 3059 private void makeA2dpDeviceAvailable(String address) { 3060 // enable A2DP before notifying A2DP connection to avoid unecessary processing in 3061 // audio policy manager 3062 setBluetoothA2dpOnInt(true); 3063 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 3064 AudioSystem.DEVICE_STATE_AVAILABLE, 3065 address); 3066 // Reset A2DP suspend state each time a new sink is connected 3067 AudioSystem.setParameters("A2dpSuspended=false"); 3068 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP), 3069 address); 3070 } 3071 3072 private void sendBecomingNoisyIntent() { 3073 mContext.sendBroadcast(new Intent(AudioManager.ACTION_AUDIO_BECOMING_NOISY)); 3074 } 3075 3076 // must be called synchronized on mConnectedDevices 3077 private void makeA2dpDeviceUnavailableNow(String address) { 3078 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 3079 AudioSystem.DEVICE_STATE_UNAVAILABLE, 3080 address); 3081 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 3082 } 3083 3084 // must be called synchronized on mConnectedDevices 3085 private void makeA2dpDeviceUnavailableLater(String address) { 3086 // prevent any activity on the A2DP audio output to avoid unwanted 3087 // reconnection of the sink. 3088 AudioSystem.setParameters("A2dpSuspended=true"); 3089 // the device will be made unavailable later, so consider it disconnected right away 3090 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 3091 // send the delayed message to make the device unavailable later 3092 Message msg = mAudioHandler.obtainMessage(MSG_BTA2DP_DOCK_TIMEOUT, address); 3093 mAudioHandler.sendMessageDelayed(msg, BTA2DP_DOCK_TIMEOUT_MILLIS); 3094 3095 } 3096 3097 // must be called synchronized on mConnectedDevices 3098 private void cancelA2dpDeviceTimeout() { 3099 mAudioHandler.removeMessages(MSG_BTA2DP_DOCK_TIMEOUT); 3100 } 3101 3102 // must be called synchronized on mConnectedDevices 3103 private boolean hasScheduledA2dpDockTimeout() { 3104 return mAudioHandler.hasMessages(MSG_BTA2DP_DOCK_TIMEOUT); 3105 } 3106 3107 private void onSetA2dpConnectionState(BluetoothDevice btDevice, int state) 3108 { 3109 if (btDevice == null) { 3110 return; 3111 } 3112 String address = btDevice.getAddress(); 3113 if (!BluetoothAdapter.checkBluetoothAddress(address)) { 3114 address = ""; 3115 } 3116 synchronized (mConnectedDevices) { 3117 boolean isConnected = 3118 (mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP) && 3119 mConnectedDevices.get(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP).equals(address)); 3120 3121 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 3122 if (btDevice.isBluetoothDock()) { 3123 if (state == BluetoothProfile.STATE_DISCONNECTED) { 3124 // introduction of a delay for transient disconnections of docks when 3125 // power is rapidly turned off/on, this message will be canceled if 3126 // we reconnect the dock under a preset delay 3127 makeA2dpDeviceUnavailableLater(address); 3128 // the next time isConnected is evaluated, it will be false for the dock 3129 } 3130 } else { 3131 makeA2dpDeviceUnavailableNow(address); 3132 } 3133 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 3134 if (btDevice.isBluetoothDock()) { 3135 // this could be a reconnection after a transient disconnection 3136 cancelA2dpDeviceTimeout(); 3137 mDockAddress = address; 3138 } else { 3139 // this could be a connection of another A2DP device before the timeout of 3140 // a dock: cancel the dock timeout, and make the dock unavailable now 3141 if(hasScheduledA2dpDockTimeout()) { 3142 cancelA2dpDeviceTimeout(); 3143 makeA2dpDeviceUnavailableNow(mDockAddress); 3144 } 3145 } 3146 makeA2dpDeviceAvailable(address); 3147 } 3148 } 3149 } 3150 3151 private boolean handleDeviceConnection(boolean connected, int device, String params) { 3152 synchronized (mConnectedDevices) { 3153 boolean isConnected = (mConnectedDevices.containsKey(device) && 3154 (params.isEmpty() || mConnectedDevices.get(device).equals(params))); 3155 3156 if (isConnected && !connected) { 3157 AudioSystem.setDeviceConnectionState(device, 3158 AudioSystem.DEVICE_STATE_UNAVAILABLE, 3159 mConnectedDevices.get(device)); 3160 mConnectedDevices.remove(device); 3161 return true; 3162 } else if (!isConnected && connected) { 3163 AudioSystem.setDeviceConnectionState(device, 3164 AudioSystem.DEVICE_STATE_AVAILABLE, 3165 params); 3166 mConnectedDevices.put(new Integer(device), params); 3167 return true; 3168 } 3169 } 3170 return false; 3171 } 3172 3173 // Devices which removal triggers intent ACTION_AUDIO_BECOMING_NOISY. The intent is only 3174 // sent if none of these devices is connected. 3175 int mBecomingNoisyIntentDevices = 3176 AudioSystem.DEVICE_OUT_WIRED_HEADSET | AudioSystem.DEVICE_OUT_WIRED_HEADPHONE | 3177 AudioSystem.DEVICE_OUT_ALL_A2DP; 3178 3179 // must be called before removing the device from mConnectedDevices 3180 private int checkSendBecomingNoisyIntent(int device, int state) { 3181 int delay = 0; 3182 if ((state == 0) && ((device & mBecomingNoisyIntentDevices) != 0)) { 3183 int devices = 0; 3184 for (int dev : mConnectedDevices.keySet()) { 3185 if ((dev & mBecomingNoisyIntentDevices) != 0) { 3186 devices |= dev; 3187 } 3188 } 3189 if (devices == device) { 3190 delay = 1000; 3191 sendBecomingNoisyIntent(); 3192 } 3193 } 3194 3195 if (mAudioHandler.hasMessages(MSG_SET_A2DP_CONNECTION_STATE) || 3196 mAudioHandler.hasMessages(MSG_SET_WIRED_DEVICE_CONNECTION_STATE)) { 3197 delay = 1000; 3198 } 3199 return delay; 3200 } 3201 3202 private void sendDeviceConnectionIntent(int device, int state, String name) 3203 { 3204 Intent intent = new Intent(); 3205 3206 intent.putExtra("state", state); 3207 intent.putExtra("name", name); 3208 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 3209 3210 if (device == AudioSystem.DEVICE_OUT_WIRED_HEADSET) { 3211 intent.setAction(Intent.ACTION_HEADSET_PLUG); 3212 intent.putExtra("microphone", 1); 3213 } else if (device == AudioSystem.DEVICE_OUT_WIRED_HEADPHONE) { 3214 intent.setAction(Intent.ACTION_HEADSET_PLUG); 3215 intent.putExtra("microphone", 0); 3216 } else if (device == AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET) { 3217 intent.setAction(Intent.ACTION_ANALOG_AUDIO_DOCK_PLUG); 3218 } else if (device == AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET) { 3219 intent.setAction(Intent.ACTION_DIGITAL_AUDIO_DOCK_PLUG); 3220 } else if (device == AudioSystem.DEVICE_OUT_AUX_DIGITAL) { 3221 intent.setAction(Intent.ACTION_HDMI_AUDIO_PLUG); 3222 } 3223 3224 ActivityManagerNative.broadcastStickyIntent(intent, null); 3225 } 3226 3227 private void onSetWiredDeviceConnectionState(int device, int state, String name) 3228 { 3229 synchronized (mConnectedDevices) { 3230 if ((state == 0) && ((device == AudioSystem.DEVICE_OUT_WIRED_HEADSET) || 3231 (device == AudioSystem.DEVICE_OUT_WIRED_HEADPHONE))) { 3232 setBluetoothA2dpOnInt(true); 3233 } 3234 handleDeviceConnection((state == 1), device, ""); 3235 if ((state != 0) && ((device == AudioSystem.DEVICE_OUT_WIRED_HEADSET) || 3236 (device == AudioSystem.DEVICE_OUT_WIRED_HEADPHONE))) { 3237 setBluetoothA2dpOnInt(false); 3238 } 3239 sendDeviceConnectionIntent(device, state, name); 3240 } 3241 } 3242 3243 /* cache of the address of the last dock the device was connected to */ 3244 private String mDockAddress; 3245 3246 /** 3247 * Receiver for misc intent broadcasts the Phone app cares about. 3248 */ 3249 private class AudioServiceBroadcastReceiver extends BroadcastReceiver { 3250 @Override 3251 public void onReceive(Context context, Intent intent) { 3252 String action = intent.getAction(); 3253 int device; 3254 int state; 3255 3256 if (action.equals(Intent.ACTION_DOCK_EVENT)) { 3257 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 3258 Intent.EXTRA_DOCK_STATE_UNDOCKED); 3259 int config; 3260 switch (dockState) { 3261 case Intent.EXTRA_DOCK_STATE_DESK: 3262 config = AudioSystem.FORCE_BT_DESK_DOCK; 3263 break; 3264 case Intent.EXTRA_DOCK_STATE_CAR: 3265 config = AudioSystem.FORCE_BT_CAR_DOCK; 3266 break; 3267 case Intent.EXTRA_DOCK_STATE_LE_DESK: 3268 config = AudioSystem.FORCE_ANALOG_DOCK; 3269 break; 3270 case Intent.EXTRA_DOCK_STATE_HE_DESK: 3271 config = AudioSystem.FORCE_DIGITAL_DOCK; 3272 break; 3273 case Intent.EXTRA_DOCK_STATE_UNDOCKED: 3274 default: 3275 config = AudioSystem.FORCE_NONE; 3276 } 3277 AudioSystem.setForceUse(AudioSystem.FOR_DOCK, config); 3278 } else if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) { 3279 state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 3280 BluetoothProfile.STATE_DISCONNECTED); 3281 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO; 3282 String address = null; 3283 3284 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 3285 if (btDevice == null) { 3286 return; 3287 } 3288 3289 address = btDevice.getAddress(); 3290 BluetoothClass btClass = btDevice.getBluetoothClass(); 3291 if (btClass != null) { 3292 switch (btClass.getDeviceClass()) { 3293 case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET: 3294 case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE: 3295 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 3296 break; 3297 case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO: 3298 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 3299 break; 3300 } 3301 } 3302 3303 if (!BluetoothAdapter.checkBluetoothAddress(address)) { 3304 address = ""; 3305 } 3306 3307 boolean connected = (state == BluetoothProfile.STATE_CONNECTED); 3308 if (handleDeviceConnection(connected, device, address)) { 3309 synchronized (mScoClients) { 3310 if (connected) { 3311 mBluetoothHeadsetDevice = btDevice; 3312 } else { 3313 mBluetoothHeadsetDevice = null; 3314 resetBluetoothSco(); 3315 } 3316 } 3317 } 3318 } else if (action.equals(Intent.ACTION_USB_AUDIO_ACCESSORY_PLUG) || 3319 action.equals(Intent.ACTION_USB_AUDIO_DEVICE_PLUG)) { 3320 state = intent.getIntExtra("state", 0); 3321 int alsaCard = intent.getIntExtra("card", -1); 3322 int alsaDevice = intent.getIntExtra("device", -1); 3323 String params = (alsaCard == -1 && alsaDevice == -1 ? "" 3324 : "card=" + alsaCard + ";device=" + alsaDevice); 3325 device = action.equals(Intent.ACTION_USB_AUDIO_ACCESSORY_PLUG) ? 3326 AudioSystem.DEVICE_OUT_USB_ACCESSORY : AudioSystem.DEVICE_OUT_USB_DEVICE; 3327 Log.v(TAG, "Broadcast Receiver: Got " 3328 + (action.equals(Intent.ACTION_USB_AUDIO_ACCESSORY_PLUG) ? 3329 "ACTION_USB_AUDIO_ACCESSORY_PLUG" : "ACTION_USB_AUDIO_DEVICE_PLUG") 3330 + ", state = " + state + ", card: " + alsaCard + ", device: " + alsaDevice); 3331 handleDeviceConnection((state == 1), device, params); 3332 } else if (action.equals(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED)) { 3333 boolean broadcast = false; 3334 int scoAudioState = AudioManager.SCO_AUDIO_STATE_ERROR; 3335 synchronized (mScoClients) { 3336 int btState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1); 3337 // broadcast intent if the connection was initated by AudioService 3338 if (!mScoClients.isEmpty() && 3339 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 3340 mScoAudioState == SCO_STATE_ACTIVATE_REQ || 3341 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 3342 broadcast = true; 3343 } 3344 switch (btState) { 3345 case BluetoothHeadset.STATE_AUDIO_CONNECTED: 3346 scoAudioState = AudioManager.SCO_AUDIO_STATE_CONNECTED; 3347 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 3348 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 3349 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 3350 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 3351 } 3352 break; 3353 case BluetoothHeadset.STATE_AUDIO_DISCONNECTED: 3354 scoAudioState = AudioManager.SCO_AUDIO_STATE_DISCONNECTED; 3355 mScoAudioState = SCO_STATE_INACTIVE; 3356 clearAllScoClients(0, false); 3357 break; 3358 case BluetoothHeadset.STATE_AUDIO_CONNECTING: 3359 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 3360 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 3361 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 3362 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 3363 } 3364 default: 3365 // do not broadcast CONNECTING or invalid state 3366 broadcast = false; 3367 break; 3368 } 3369 } 3370 if (broadcast) { 3371 broadcastScoConnectionState(scoAudioState); 3372 //FIXME: this is to maintain compatibility with deprecated intent 3373 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 3374 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 3375 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, scoAudioState); 3376 mContext.sendStickyBroadcast(newIntent); 3377 } 3378 } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) { 3379 mBootCompleted = true; 3380 sendMsg(mAudioHandler, MSG_LOAD_SOUND_EFFECTS, SENDMSG_NOOP, 3381 0, 0, null, 0); 3382 3383 mKeyguardManager = 3384 (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE); 3385 mScoConnectionState = AudioManager.SCO_AUDIO_STATE_ERROR; 3386 resetBluetoothSco(); 3387 getBluetoothHeadset(); 3388 //FIXME: this is to maintain compatibility with deprecated intent 3389 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 3390 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 3391 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, 3392 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 3393 mContext.sendStickyBroadcast(newIntent); 3394 3395 BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 3396 if (adapter != null) { 3397 adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener, 3398 BluetoothProfile.A2DP); 3399 } 3400 } else if (action.equals(Intent.ACTION_PACKAGE_REMOVED)) { 3401 if (!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 3402 // a package is being removed, not replaced 3403 String packageName = intent.getData().getSchemeSpecificPart(); 3404 if (packageName != null) { 3405 removeMediaButtonReceiverForPackage(packageName); 3406 } 3407 } 3408 } else if (action.equals(Intent.ACTION_SCREEN_ON)) { 3409 AudioSystem.setParameters("screen_state=on"); 3410 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 3411 AudioSystem.setParameters("screen_state=off"); 3412 } else if (action.equalsIgnoreCase(Intent.ACTION_CONFIGURATION_CHANGED)) { 3413 handleConfigurationChanged(context); 3414 } 3415 } 3416 } 3417 3418 //========================================================================================== 3419 // AudioFocus 3420 //========================================================================================== 3421 3422 /* constant to identify focus stack entry that is used to hold the focus while the phone 3423 * is ringing or during a call. Used by com.android.internal.telephony.CallManager when 3424 * entering and exiting calls. 3425 */ 3426 public final static String IN_VOICE_COMM_FOCUS_ID = "AudioFocus_For_Phone_Ring_And_Calls"; 3427 3428 private final static Object mAudioFocusLock = new Object(); 3429 3430 private final static Object mRingingLock = new Object(); 3431 3432 private PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 3433 @Override 3434 public void onCallStateChanged(int state, String incomingNumber) { 3435 if (state == TelephonyManager.CALL_STATE_RINGING) { 3436 //Log.v(TAG, " CALL_STATE_RINGING"); 3437 synchronized(mRingingLock) { 3438 mIsRinging = true; 3439 } 3440 } else if ((state == TelephonyManager.CALL_STATE_OFFHOOK) 3441 || (state == TelephonyManager.CALL_STATE_IDLE)) { 3442 synchronized(mRingingLock) { 3443 mIsRinging = false; 3444 } 3445 } 3446 } 3447 }; 3448 3449 private void notifyTopOfAudioFocusStack() { 3450 // notify the top of the stack it gained focus 3451 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 3452 if (canReassignAudioFocus()) { 3453 try { 3454 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 3455 AudioManager.AUDIOFOCUS_GAIN, mFocusStack.peek().mClientId); 3456 } catch (RemoteException e) { 3457 Log.e(TAG, "Failure to signal gain of audio control focus due to "+ e); 3458 e.printStackTrace(); 3459 } 3460 } 3461 } 3462 } 3463 3464 private static class FocusStackEntry { 3465 public int mStreamType = -1;// no stream type 3466 public IAudioFocusDispatcher mFocusDispatcher = null; 3467 public IBinder mSourceRef = null; 3468 public String mClientId; 3469 public int mFocusChangeType; 3470 public AudioFocusDeathHandler mHandler; 3471 public String mPackageName; 3472 public int mCallingUid; 3473 3474 public FocusStackEntry() { 3475 } 3476 3477 public FocusStackEntry(int streamType, int duration, 3478 IAudioFocusDispatcher afl, IBinder source, String id, AudioFocusDeathHandler hdlr, 3479 String pn, int uid) { 3480 mStreamType = streamType; 3481 mFocusDispatcher = afl; 3482 mSourceRef = source; 3483 mClientId = id; 3484 mFocusChangeType = duration; 3485 mHandler = hdlr; 3486 mPackageName = pn; 3487 mCallingUid = uid; 3488 } 3489 3490 public void unlinkToDeath() { 3491 try { 3492 if (mSourceRef != null && mHandler != null) { 3493 mSourceRef.unlinkToDeath(mHandler, 0); 3494 mHandler = null; 3495 } 3496 } catch (java.util.NoSuchElementException e) { 3497 Log.e(TAG, "Encountered " + e + " in FocusStackEntry.unlinkToDeath()"); 3498 } 3499 } 3500 3501 @Override 3502 protected void finalize() throws Throwable { 3503 unlinkToDeath(); // unlink exception handled inside method 3504 super.finalize(); 3505 } 3506 } 3507 3508 private final Stack<FocusStackEntry> mFocusStack = new Stack<FocusStackEntry>(); 3509 3510 /** 3511 * Helper function: 3512 * Display in the log the current entries in the audio focus stack 3513 */ 3514 private void dumpFocusStack(PrintWriter pw) { 3515 pw.println("\nAudio Focus stack entries:"); 3516 synchronized(mAudioFocusLock) { 3517 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 3518 while(stackIterator.hasNext()) { 3519 FocusStackEntry fse = stackIterator.next(); 3520 pw.println(" source:" + fse.mSourceRef + " -- client: " + fse.mClientId 3521 + " -- duration: " + fse.mFocusChangeType 3522 + " -- uid: " + fse.mCallingUid); 3523 } 3524 } 3525 } 3526 3527 /** 3528 * Helper function: 3529 * Called synchronized on mAudioFocusLock 3530 * Remove a focus listener from the focus stack. 3531 * @param focusListenerToRemove the focus listener 3532 * @param signal if true and the listener was at the top of the focus stack, i.e. it was holding 3533 * focus, notify the next item in the stack it gained focus. 3534 */ 3535 private void removeFocusStackEntry(String clientToRemove, boolean signal) { 3536 // is the current top of the focus stack abandoning focus? (because of request, not death) 3537 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientToRemove)) 3538 { 3539 //Log.i(TAG, " removeFocusStackEntry() removing top of stack"); 3540 FocusStackEntry fse = mFocusStack.pop(); 3541 fse.unlinkToDeath(); 3542 if (signal) { 3543 // notify the new top of the stack it gained focus 3544 notifyTopOfAudioFocusStack(); 3545 // there's a new top of the stack, let the remote control know 3546 synchronized(mRCStack) { 3547 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3548 } 3549 } 3550 } else { 3551 // focus is abandoned by a client that's not at the top of the stack, 3552 // no need to update focus. 3553 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 3554 while(stackIterator.hasNext()) { 3555 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 3556 if(fse.mClientId.equals(clientToRemove)) { 3557 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 3558 + fse.mClientId); 3559 stackIterator.remove(); 3560 fse.unlinkToDeath(); 3561 } 3562 } 3563 } 3564 } 3565 3566 /** 3567 * Helper function: 3568 * Called synchronized on mAudioFocusLock 3569 * Remove focus listeners from the focus stack for a particular client when it has died. 3570 */ 3571 private void removeFocusStackEntryForClient(IBinder cb) { 3572 // is the owner of the audio focus part of the client to remove? 3573 boolean isTopOfStackForClientToRemove = !mFocusStack.isEmpty() && 3574 mFocusStack.peek().mSourceRef.equals(cb); 3575 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 3576 while(stackIterator.hasNext()) { 3577 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 3578 if(fse.mSourceRef.equals(cb)) { 3579 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 3580 + fse.mClientId); 3581 stackIterator.remove(); 3582 // the client just died, no need to unlink to its death 3583 } 3584 } 3585 if (isTopOfStackForClientToRemove) { 3586 // we removed an entry at the top of the stack: 3587 // notify the new top of the stack it gained focus. 3588 notifyTopOfAudioFocusStack(); 3589 // there's a new top of the stack, let the remote control know 3590 synchronized(mRCStack) { 3591 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3592 } 3593 } 3594 } 3595 3596 /** 3597 * Helper function: 3598 * Returns true if the system is in a state where the focus can be reevaluated, false otherwise. 3599 */ 3600 private boolean canReassignAudioFocus() { 3601 // focus requests are rejected during a phone call or when the phone is ringing 3602 // this is equivalent to IN_VOICE_COMM_FOCUS_ID having the focus 3603 if (!mFocusStack.isEmpty() && IN_VOICE_COMM_FOCUS_ID.equals(mFocusStack.peek().mClientId)) { 3604 return false; 3605 } 3606 return true; 3607 } 3608 3609 /** 3610 * Inner class to monitor audio focus client deaths, and remove them from the audio focus 3611 * stack if necessary. 3612 */ 3613 private class AudioFocusDeathHandler implements IBinder.DeathRecipient { 3614 private IBinder mCb; // To be notified of client's death 3615 3616 AudioFocusDeathHandler(IBinder cb) { 3617 mCb = cb; 3618 } 3619 3620 public void binderDied() { 3621 synchronized(mAudioFocusLock) { 3622 Log.w(TAG, " AudioFocus audio focus client died"); 3623 removeFocusStackEntryForClient(mCb); 3624 } 3625 } 3626 3627 public IBinder getBinder() { 3628 return mCb; 3629 } 3630 } 3631 3632 3633 /** @see AudioManager#requestAudioFocus(IAudioFocusDispatcher, int, int) */ 3634 public int requestAudioFocus(int mainStreamType, int focusChangeHint, IBinder cb, 3635 IAudioFocusDispatcher fd, String clientId, String callingPackageName) { 3636 Log.i(TAG, " AudioFocus requestAudioFocus() from " + clientId); 3637 // the main stream type for the audio focus request is currently not used. It may 3638 // potentially be used to handle multiple stream type-dependent audio focuses. 3639 3640 // we need a valid binder callback for clients 3641 if (!cb.pingBinder()) { 3642 Log.e(TAG, " AudioFocus DOA client for requestAudioFocus(), aborting."); 3643 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 3644 } 3645 3646 synchronized(mAudioFocusLock) { 3647 if (!canReassignAudioFocus()) { 3648 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 3649 } 3650 3651 // handle the potential premature death of the new holder of the focus 3652 // (premature death == death before abandoning focus) 3653 // Register for client death notification 3654 AudioFocusDeathHandler afdh = new AudioFocusDeathHandler(cb); 3655 try { 3656 cb.linkToDeath(afdh, 0); 3657 } catch (RemoteException e) { 3658 // client has already died! 3659 Log.w(TAG, "AudioFocus requestAudioFocus() could not link to "+cb+" binder death"); 3660 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 3661 } 3662 3663 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientId)) { 3664 // if focus is already owned by this client and the reason for acquiring the focus 3665 // hasn't changed, don't do anything 3666 if (mFocusStack.peek().mFocusChangeType == focusChangeHint) { 3667 // unlink death handler so it can be gc'ed. 3668 // linkToDeath() creates a JNI global reference preventing collection. 3669 cb.unlinkToDeath(afdh, 0); 3670 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 3671 } 3672 // the reason for the audio focus request has changed: remove the current top of 3673 // stack and respond as if we had a new focus owner 3674 FocusStackEntry fse = mFocusStack.pop(); 3675 fse.unlinkToDeath(); 3676 } 3677 3678 // notify current top of stack it is losing focus 3679 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 3680 try { 3681 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 3682 -1 * focusChangeHint, // loss and gain codes are inverse of each other 3683 mFocusStack.peek().mClientId); 3684 } catch (RemoteException e) { 3685 Log.e(TAG, " Failure to signal loss of focus due to "+ e); 3686 e.printStackTrace(); 3687 } 3688 } 3689 3690 // focus requester might already be somewhere below in the stack, remove it 3691 removeFocusStackEntry(clientId, false /* signal */); 3692 3693 // push focus requester at the top of the audio focus stack 3694 mFocusStack.push(new FocusStackEntry(mainStreamType, focusChangeHint, fd, cb, 3695 clientId, afdh, callingPackageName, Binder.getCallingUid())); 3696 3697 // there's a new top of the stack, let the remote control know 3698 synchronized(mRCStack) { 3699 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3700 } 3701 }//synchronized(mAudioFocusLock) 3702 3703 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 3704 } 3705 3706 /** @see AudioManager#abandonAudioFocus(IAudioFocusDispatcher) */ 3707 public int abandonAudioFocus(IAudioFocusDispatcher fl, String clientId) { 3708 Log.i(TAG, " AudioFocus abandonAudioFocus() from " + clientId); 3709 try { 3710 // this will take care of notifying the new focus owner if needed 3711 synchronized(mAudioFocusLock) { 3712 removeFocusStackEntry(clientId, true); 3713 } 3714 } catch (java.util.ConcurrentModificationException cme) { 3715 // Catching this exception here is temporary. It is here just to prevent 3716 // a crash seen when the "Silent" notification is played. This is believed to be fixed 3717 // but this try catch block is left just to be safe. 3718 Log.e(TAG, "FATAL EXCEPTION AudioFocus abandonAudioFocus() caused " + cme); 3719 cme.printStackTrace(); 3720 } 3721 3722 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 3723 } 3724 3725 3726 public void unregisterAudioFocusClient(String clientId) { 3727 synchronized(mAudioFocusLock) { 3728 removeFocusStackEntry(clientId, false); 3729 } 3730 } 3731 3732 3733 //========================================================================================== 3734 // RemoteControl 3735 //========================================================================================== 3736 public void dispatchMediaKeyEvent(KeyEvent keyEvent) { 3737 filterMediaKeyEvent(keyEvent, false /*needWakeLock*/); 3738 } 3739 3740 public void dispatchMediaKeyEventUnderWakelock(KeyEvent keyEvent) { 3741 filterMediaKeyEvent(keyEvent, true /*needWakeLock*/); 3742 } 3743 3744 private void filterMediaKeyEvent(KeyEvent keyEvent, boolean needWakeLock) { 3745 // sanity check on the incoming key event 3746 if (!isValidMediaKeyEvent(keyEvent)) { 3747 Log.e(TAG, "not dispatching invalid media key event " + keyEvent); 3748 return; 3749 } 3750 // event filtering for telephony 3751 synchronized(mRingingLock) { 3752 synchronized(mRCStack) { 3753 if ((mMediaReceiverForCalls != null) && 3754 (mIsRinging || (getMode() == AudioSystem.MODE_IN_CALL))) { 3755 dispatchMediaKeyEventForCalls(keyEvent, needWakeLock); 3756 return; 3757 } 3758 } 3759 } 3760 // event filtering based on voice-based interactions 3761 if (isValidVoiceInputKeyCode(keyEvent.getKeyCode())) { 3762 filterVoiceInputKeyEvent(keyEvent, needWakeLock); 3763 } else { 3764 dispatchMediaKeyEvent(keyEvent, needWakeLock); 3765 } 3766 } 3767 3768 /** 3769 * Handles the dispatching of the media button events to the telephony package. 3770 * Precondition: mMediaReceiverForCalls != null 3771 * @param keyEvent a non-null KeyEvent whose key code is one of the supported media buttons 3772 * @param needWakeLock true if a PARTIAL_WAKE_LOCK needs to be held while this key event 3773 * is dispatched. 3774 */ 3775 private void dispatchMediaKeyEventForCalls(KeyEvent keyEvent, boolean needWakeLock) { 3776 Intent keyIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null); 3777 keyIntent.putExtra(Intent.EXTRA_KEY_EVENT, keyEvent); 3778 keyIntent.setPackage(mMediaReceiverForCalls.getPackageName()); 3779 if (needWakeLock) { 3780 mMediaEventWakeLock.acquire(); 3781 keyIntent.putExtra(EXTRA_WAKELOCK_ACQUIRED, WAKELOCK_RELEASE_ON_FINISHED); 3782 } 3783 mContext.sendOrderedBroadcast(keyIntent, null, mKeyEventDone, 3784 mAudioHandler, Activity.RESULT_OK, null, null); 3785 } 3786 3787 /** 3788 * Handles the dispatching of the media button events to one of the registered listeners, 3789 * or if there was none, broadcast an ACTION_MEDIA_BUTTON intent to the rest of the system. 3790 * @param keyEvent a non-null KeyEvent whose key code is one of the supported media buttons 3791 * @param needWakeLock true if a PARTIAL_WAKE_LOCK needs to be held while this key event 3792 * is dispatched. 3793 */ 3794 private void dispatchMediaKeyEvent(KeyEvent keyEvent, boolean needWakeLock) { 3795 if (needWakeLock) { 3796 mMediaEventWakeLock.acquire(); 3797 } 3798 Intent keyIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null); 3799 keyIntent.putExtra(Intent.EXTRA_KEY_EVENT, keyEvent); 3800 synchronized(mRCStack) { 3801 if (!mRCStack.empty()) { 3802 // send the intent that was registered by the client 3803 try { 3804 mRCStack.peek().mMediaIntent.send(mContext, 3805 needWakeLock ? WAKELOCK_RELEASE_ON_FINISHED : 0 /*code*/, 3806 keyIntent, AudioService.this, mAudioHandler); 3807 } catch (CanceledException e) { 3808 Log.e(TAG, "Error sending pending intent " + mRCStack.peek()); 3809 e.printStackTrace(); 3810 } 3811 } else { 3812 // legacy behavior when nobody registered their media button event receiver 3813 // through AudioManager 3814 if (needWakeLock) { 3815 keyIntent.putExtra(EXTRA_WAKELOCK_ACQUIRED, WAKELOCK_RELEASE_ON_FINISHED); 3816 } 3817 mContext.sendOrderedBroadcast(keyIntent, null, mKeyEventDone, 3818 mAudioHandler, Activity.RESULT_OK, null, null); 3819 } 3820 } 3821 } 3822 3823 /** 3824 * The different actions performed in response to a voice button key event. 3825 */ 3826 private final static int VOICEBUTTON_ACTION_DISCARD_CURRENT_KEY_PRESS = 1; 3827 private final static int VOICEBUTTON_ACTION_START_VOICE_INPUT = 2; 3828 private final static int VOICEBUTTON_ACTION_SIMULATE_KEY_PRESS = 3; 3829 3830 private final Object mVoiceEventLock = new Object(); 3831 private boolean mVoiceButtonDown; 3832 private boolean mVoiceButtonHandled; 3833 3834 /** 3835 * Filter key events that may be used for voice-based interactions 3836 * @param keyEvent a non-null KeyEvent whose key code is that of one of the supported 3837 * media buttons that can be used to trigger voice-based interactions. 3838 * @param needWakeLock true if a PARTIAL_WAKE_LOCK needs to be held while this key event 3839 * is dispatched. 3840 */ 3841 private void filterVoiceInputKeyEvent(KeyEvent keyEvent, boolean needWakeLock) { 3842 if (DEBUG_RC) { 3843 Log.v(TAG, "voice input key event: " + keyEvent + ", needWakeLock=" + needWakeLock); 3844 } 3845 3846 int voiceButtonAction = VOICEBUTTON_ACTION_DISCARD_CURRENT_KEY_PRESS; 3847 int keyAction = keyEvent.getAction(); 3848 synchronized (mVoiceEventLock) { 3849 if (keyAction == KeyEvent.ACTION_DOWN) { 3850 if (keyEvent.getRepeatCount() == 0) { 3851 // initial down 3852 mVoiceButtonDown = true; 3853 mVoiceButtonHandled = false; 3854 } else if (mVoiceButtonDown && !mVoiceButtonHandled 3855 && (keyEvent.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) { 3856 // long-press, start voice-based interactions 3857 mVoiceButtonHandled = true; 3858 voiceButtonAction = VOICEBUTTON_ACTION_START_VOICE_INPUT; 3859 } 3860 } else if (keyAction == KeyEvent.ACTION_UP) { 3861 if (mVoiceButtonDown) { 3862 // voice button up 3863 mVoiceButtonDown = false; 3864 if (!mVoiceButtonHandled && !keyEvent.isCanceled()) { 3865 voiceButtonAction = VOICEBUTTON_ACTION_SIMULATE_KEY_PRESS; 3866 } 3867 } 3868 } 3869 }//synchronized (mVoiceEventLock) 3870 3871 // take action after media button event filtering for voice-based interactions 3872 switch (voiceButtonAction) { 3873 case VOICEBUTTON_ACTION_DISCARD_CURRENT_KEY_PRESS: 3874 if (DEBUG_RC) Log.v(TAG, " ignore key event"); 3875 break; 3876 case VOICEBUTTON_ACTION_START_VOICE_INPUT: 3877 if (DEBUG_RC) Log.v(TAG, " start voice-based interactions"); 3878 // then start the voice-based interactions 3879 startVoiceBasedInteractions(needWakeLock); 3880 break; 3881 case VOICEBUTTON_ACTION_SIMULATE_KEY_PRESS: 3882 if (DEBUG_RC) Log.v(TAG, " send simulated key event"); 3883 sendSimulatedMediaButtonEvent(keyEvent, needWakeLock); 3884 break; 3885 } 3886 } 3887 3888 private void sendSimulatedMediaButtonEvent(KeyEvent originalKeyEvent, boolean needWakeLock) { 3889 // send DOWN event 3890 KeyEvent keyEvent = KeyEvent.changeAction(originalKeyEvent, KeyEvent.ACTION_DOWN); 3891 dispatchMediaKeyEvent(keyEvent, needWakeLock); 3892 // send UP event 3893 keyEvent = KeyEvent.changeAction(originalKeyEvent, KeyEvent.ACTION_UP); 3894 dispatchMediaKeyEvent(keyEvent, needWakeLock); 3895 3896 } 3897 3898 3899 private static boolean isValidMediaKeyEvent(KeyEvent keyEvent) { 3900 if (keyEvent == null) { 3901 return false; 3902 } 3903 final int keyCode = keyEvent.getKeyCode(); 3904 switch (keyCode) { 3905 case KeyEvent.KEYCODE_MUTE: 3906 case KeyEvent.KEYCODE_HEADSETHOOK: 3907 case KeyEvent.KEYCODE_MEDIA_PLAY: 3908 case KeyEvent.KEYCODE_MEDIA_PAUSE: 3909 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 3910 case KeyEvent.KEYCODE_MEDIA_STOP: 3911 case KeyEvent.KEYCODE_MEDIA_NEXT: 3912 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 3913 case KeyEvent.KEYCODE_MEDIA_REWIND: 3914 case KeyEvent.KEYCODE_MEDIA_RECORD: 3915 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: 3916 case KeyEvent.KEYCODE_MEDIA_CLOSE: 3917 case KeyEvent.KEYCODE_MEDIA_EJECT: 3918 break; 3919 default: 3920 return false; 3921 } 3922 return true; 3923 } 3924 3925 /** 3926 * Checks whether the given key code is one that can trigger the launch of voice-based 3927 * interactions. 3928 * @param keyCode the key code associated with the key event 3929 * @return true if the key is one of the supported voice-based interaction triggers 3930 */ 3931 private static boolean isValidVoiceInputKeyCode(int keyCode) { 3932 if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK) { 3933 return true; 3934 } else { 3935 return false; 3936 } 3937 } 3938 3939 /** 3940 * Tell the system to start voice-based interactions / voice commands 3941 */ 3942 private void startVoiceBasedInteractions(boolean needWakeLock) { 3943 Intent voiceIntent = null; 3944 // select which type of search to launch: 3945 // - screen on and device unlocked: action is ACTION_WEB_SEARCH 3946 // - device locked or screen off: action is ACTION_VOICE_SEARCH_HANDS_FREE 3947 // with EXTRA_SECURE set to true if the device is securely locked 3948 PowerManager pm = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE); 3949 boolean isLocked = mKeyguardManager != null && mKeyguardManager.isKeyguardLocked(); 3950 if (!isLocked && pm.isScreenOn()) { 3951 voiceIntent = new Intent(android.speech.RecognizerIntent.ACTION_WEB_SEARCH); 3952 } else { 3953 voiceIntent = new Intent(RecognizerIntent.ACTION_VOICE_SEARCH_HANDS_FREE); 3954 voiceIntent.putExtra(RecognizerIntent.EXTRA_SECURE, 3955 isLocked && mKeyguardManager.isKeyguardSecure()); 3956 } 3957 // start the search activity 3958 if (needWakeLock) { 3959 mMediaEventWakeLock.acquire(); 3960 } 3961 try { 3962 if (voiceIntent != null) { 3963 voiceIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK 3964 | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 3965 mContext.startActivity(voiceIntent); 3966 } 3967 } catch (ActivityNotFoundException e) { 3968 Log.w(TAG, "No activity for search: " + e); 3969 } finally { 3970 if (needWakeLock) { 3971 mMediaEventWakeLock.release(); 3972 } 3973 } 3974 } 3975 3976 private PowerManager.WakeLock mMediaEventWakeLock; 3977 3978 private static final int WAKELOCK_RELEASE_ON_FINISHED = 1980; //magic number 3979 3980 // only set when wakelock was acquired, no need to check value when received 3981 private static final String EXTRA_WAKELOCK_ACQUIRED = 3982 "android.media.AudioService.WAKELOCK_ACQUIRED"; 3983 3984 public void onSendFinished(PendingIntent pendingIntent, Intent intent, 3985 int resultCode, String resultData, Bundle resultExtras) { 3986 if (resultCode == WAKELOCK_RELEASE_ON_FINISHED) { 3987 mMediaEventWakeLock.release(); 3988 } 3989 } 3990 3991 BroadcastReceiver mKeyEventDone = new BroadcastReceiver() { 3992 public void onReceive(Context context, Intent intent) { 3993 if (intent == null) { 3994 return; 3995 } 3996 Bundle extras = intent.getExtras(); 3997 if (extras == null) { 3998 return; 3999 } 4000 if (extras.containsKey(EXTRA_WAKELOCK_ACQUIRED)) { 4001 mMediaEventWakeLock.release(); 4002 } 4003 } 4004 }; 4005 4006 private final Object mCurrentRcLock = new Object(); 4007 /** 4008 * The one remote control client which will receive a request for display information. 4009 * This object may be null. 4010 * Access protected by mCurrentRcLock. 4011 */ 4012 private IRemoteControlClient mCurrentRcClient = null; 4013 4014 private final static int RC_INFO_NONE = 0; 4015 private final static int RC_INFO_ALL = 4016 RemoteControlClient.FLAG_INFORMATION_REQUEST_ALBUM_ART | 4017 RemoteControlClient.FLAG_INFORMATION_REQUEST_KEY_MEDIA | 4018 RemoteControlClient.FLAG_INFORMATION_REQUEST_METADATA | 4019 RemoteControlClient.FLAG_INFORMATION_REQUEST_PLAYSTATE; 4020 4021 /** 4022 * A monotonically increasing generation counter for mCurrentRcClient. 4023 * Only accessed with a lock on mCurrentRcLock. 4024 * No value wrap-around issues as we only act on equal values. 4025 */ 4026 private int mCurrentRcClientGen = 0; 4027 4028 /** 4029 * Inner class to monitor remote control client deaths, and remove the client for the 4030 * remote control stack if necessary. 4031 */ 4032 private class RcClientDeathHandler implements IBinder.DeathRecipient { 4033 private IBinder mCb; // To be notified of client's death 4034 private PendingIntent mMediaIntent; 4035 4036 RcClientDeathHandler(IBinder cb, PendingIntent pi) { 4037 mCb = cb; 4038 mMediaIntent = pi; 4039 } 4040 4041 public void binderDied() { 4042 Log.w(TAG, " RemoteControlClient died"); 4043 // remote control client died, make sure the displays don't use it anymore 4044 // by setting its remote control client to null 4045 registerRemoteControlClient(mMediaIntent, null/*rcClient*/, null/*ignored*/); 4046 } 4047 4048 public IBinder getBinder() { 4049 return mCb; 4050 } 4051 } 4052 4053 private static class RemoteControlStackEntry { 4054 /** 4055 * The target for the ACTION_MEDIA_BUTTON events. 4056 * Always non null. 4057 */ 4058 public PendingIntent mMediaIntent; 4059 /** 4060 * The registered media button event receiver. 4061 * Always non null. 4062 */ 4063 public ComponentName mReceiverComponent; 4064 public String mCallingPackageName; 4065 public int mCallingUid; 4066 /** 4067 * Provides access to the information to display on the remote control. 4068 * May be null (when a media button event receiver is registered, 4069 * but no remote control client has been registered) */ 4070 public IRemoteControlClient mRcClient; 4071 public RcClientDeathHandler mRcClientDeathHandler; 4072 4073 /** precondition: mediaIntent != null, eventReceiver != null */ 4074 public RemoteControlStackEntry(PendingIntent mediaIntent, ComponentName eventReceiver) { 4075 mMediaIntent = mediaIntent; 4076 mReceiverComponent = eventReceiver; 4077 mCallingUid = -1; 4078 mRcClient = null; 4079 } 4080 4081 public void unlinkToRcClientDeath() { 4082 if ((mRcClientDeathHandler != null) && (mRcClientDeathHandler.mCb != null)) { 4083 try { 4084 mRcClientDeathHandler.mCb.unlinkToDeath(mRcClientDeathHandler, 0); 4085 mRcClientDeathHandler = null; 4086 } catch (java.util.NoSuchElementException e) { 4087 // not much we can do here 4088 Log.e(TAG, "Encountered " + e + " in unlinkToRcClientDeath()"); 4089 e.printStackTrace(); 4090 } 4091 } 4092 } 4093 4094 @Override 4095 protected void finalize() throws Throwable { 4096 unlinkToRcClientDeath();// unlink exception handled inside method 4097 super.finalize(); 4098 } 4099 } 4100 4101 /** 4102 * The stack of remote control event receivers. 4103 * Code sections and methods that modify the remote control event receiver stack are 4104 * synchronized on mRCStack, but also BEFORE on mFocusLock as any change in either 4105 * stack, audio focus or RC, can lead to a change in the remote control display 4106 */ 4107 private final Stack<RemoteControlStackEntry> mRCStack = new Stack<RemoteControlStackEntry>(); 4108 4109 /** 4110 * The component the telephony package can register so telephony calls have priority to 4111 * handle media button events 4112 */ 4113 private ComponentName mMediaReceiverForCalls = null; 4114 4115 /** 4116 * Helper function: 4117 * Display in the log the current entries in the remote control focus stack 4118 */ 4119 private void dumpRCStack(PrintWriter pw) { 4120 pw.println("\nRemote Control stack entries:"); 4121 synchronized(mRCStack) { 4122 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4123 while(stackIterator.hasNext()) { 4124 RemoteControlStackEntry rcse = stackIterator.next(); 4125 pw.println(" pi: " + rcse.mMediaIntent + 4126 " -- ercvr: " + rcse.mReceiverComponent + 4127 " -- client: " + rcse.mRcClient + 4128 " -- uid: " + rcse.mCallingUid); 4129 } 4130 } 4131 } 4132 4133 /** 4134 * Helper function: 4135 * Remove any entry in the remote control stack that has the same package name as packageName 4136 * Pre-condition: packageName != null 4137 */ 4138 private void removeMediaButtonReceiverForPackage(String packageName) { 4139 synchronized(mRCStack) { 4140 if (mRCStack.empty()) { 4141 return; 4142 } else { 4143 RemoteControlStackEntry oldTop = mRCStack.peek(); 4144 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4145 // iterate over the stack entries 4146 while(stackIterator.hasNext()) { 4147 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 4148 if (packageName.equalsIgnoreCase(rcse.mReceiverComponent.getPackageName())) { 4149 // a stack entry is from the package being removed, remove it from the stack 4150 stackIterator.remove(); 4151 rcse.unlinkToRcClientDeath(); 4152 } 4153 } 4154 if (mRCStack.empty()) { 4155 // no saved media button receiver 4156 mAudioHandler.sendMessage( 4157 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 4158 null)); 4159 } else if (oldTop != mRCStack.peek()) { 4160 // the top of the stack has changed, save it in the system settings 4161 // by posting a message to persist it 4162 mAudioHandler.sendMessage( 4163 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 4164 mRCStack.peek().mReceiverComponent)); 4165 } 4166 } 4167 } 4168 } 4169 4170 /** 4171 * Helper function: 4172 * Restore remote control receiver from the system settings. 4173 */ 4174 private void restoreMediaButtonReceiver() { 4175 String receiverName = Settings.System.getString(mContentResolver, 4176 Settings.System.MEDIA_BUTTON_RECEIVER); 4177 if ((null != receiverName) && !receiverName.isEmpty()) { 4178 ComponentName eventReceiver = ComponentName.unflattenFromString(receiverName); 4179 // construct a PendingIntent targeted to the restored component name 4180 // for the media button and register it 4181 Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); 4182 // the associated intent will be handled by the component being registered 4183 mediaButtonIntent.setComponent(eventReceiver); 4184 PendingIntent pi = PendingIntent.getBroadcast(mContext, 4185 0/*requestCode, ignored*/, mediaButtonIntent, 0/*flags*/); 4186 registerMediaButtonIntent(pi, eventReceiver); 4187 } 4188 } 4189 4190 /** 4191 * Helper function: 4192 * Set the new remote control receiver at the top of the RC focus stack. 4193 * precondition: mediaIntent != null, target != null 4194 */ 4195 private void pushMediaButtonReceiver(PendingIntent mediaIntent, ComponentName target) { 4196 // already at top of stack? 4197 if (!mRCStack.empty() && mRCStack.peek().mMediaIntent.equals(mediaIntent)) { 4198 return; 4199 } 4200 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4201 RemoteControlStackEntry rcse = null; 4202 boolean wasInsideStack = false; 4203 while(stackIterator.hasNext()) { 4204 rcse = (RemoteControlStackEntry)stackIterator.next(); 4205 if(rcse.mMediaIntent.equals(mediaIntent)) { 4206 wasInsideStack = true; 4207 stackIterator.remove(); 4208 break; 4209 } 4210 } 4211 if (!wasInsideStack) { 4212 rcse = new RemoteControlStackEntry(mediaIntent, target); 4213 } 4214 mRCStack.push(rcse); 4215 4216 // post message to persist the default media button receiver 4217 mAudioHandler.sendMessage( mAudioHandler.obtainMessage( 4218 MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, target/*obj*/) ); 4219 } 4220 4221 /** 4222 * Helper function: 4223 * Remove the remote control receiver from the RC focus stack. 4224 * precondition: pi != null 4225 */ 4226 private void removeMediaButtonReceiver(PendingIntent pi) { 4227 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4228 while(stackIterator.hasNext()) { 4229 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 4230 if(rcse.mMediaIntent.equals(pi)) { 4231 stackIterator.remove(); 4232 rcse.unlinkToRcClientDeath(); 4233 break; 4234 } 4235 } 4236 } 4237 4238 /** 4239 * Helper function: 4240 * Called synchronized on mRCStack 4241 */ 4242 private boolean isCurrentRcController(PendingIntent pi) { 4243 if (!mRCStack.empty() && mRCStack.peek().mMediaIntent.equals(pi)) { 4244 return true; 4245 } 4246 return false; 4247 } 4248 4249 //========================================================================================== 4250 // Remote control display / client 4251 //========================================================================================== 4252 /** 4253 * Update the remote control displays with the new "focused" client generation 4254 */ 4255 private void setNewRcClientOnDisplays_syncRcsCurrc(int newClientGeneration, 4256 PendingIntent newMediaIntent, boolean clearing) { 4257 // NOTE: Only one IRemoteControlDisplay supported in this implementation 4258 if (mRcDisplay != null) { 4259 try { 4260 mRcDisplay.setCurrentClientId( 4261 newClientGeneration, newMediaIntent, clearing); 4262 } catch (RemoteException e) { 4263 Log.e(TAG, "Dead display in setNewRcClientOnDisplays_syncRcsCurrc() "+e); 4264 // if we had a display before, stop monitoring its death 4265 rcDisplay_stopDeathMonitor_syncRcStack(); 4266 mRcDisplay = null; 4267 } 4268 } 4269 } 4270 4271 /** 4272 * Update the remote control clients with the new "focused" client generation 4273 */ 4274 private void setNewRcClientGenerationOnClients_syncRcsCurrc(int newClientGeneration) { 4275 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4276 while(stackIterator.hasNext()) { 4277 RemoteControlStackEntry se = stackIterator.next(); 4278 if ((se != null) && (se.mRcClient != null)) { 4279 try { 4280 se.mRcClient.setCurrentClientGenerationId(newClientGeneration); 4281 } catch (RemoteException e) { 4282 Log.w(TAG, "Dead client in setNewRcClientGenerationOnClients_syncRcsCurrc()"+e); 4283 stackIterator.remove(); 4284 se.unlinkToRcClientDeath(); 4285 } 4286 } 4287 } 4288 } 4289 4290 /** 4291 * Update the displays and clients with the new "focused" client generation and name 4292 * @param newClientGeneration the new generation value matching a client update 4293 * @param newClientEventReceiver the media button event receiver associated with the client. 4294 * May be null, which implies there is no registered media button event receiver. 4295 * @param clearing true if the new client generation value maps to a remote control update 4296 * where the display should be cleared. 4297 */ 4298 private void setNewRcClient_syncRcsCurrc(int newClientGeneration, 4299 PendingIntent newMediaIntent, boolean clearing) { 4300 // send the new valid client generation ID to all displays 4301 setNewRcClientOnDisplays_syncRcsCurrc(newClientGeneration, newMediaIntent, clearing); 4302 // send the new valid client generation ID to all clients 4303 setNewRcClientGenerationOnClients_syncRcsCurrc(newClientGeneration); 4304 } 4305 4306 /** 4307 * Called when processing MSG_RCDISPLAY_CLEAR event 4308 */ 4309 private void onRcDisplayClear() { 4310 if (DEBUG_RC) Log.i(TAG, "Clear remote control display"); 4311 4312 synchronized(mRCStack) { 4313 synchronized(mCurrentRcLock) { 4314 mCurrentRcClientGen++; 4315 // synchronously update the displays and clients with the new client generation 4316 setNewRcClient_syncRcsCurrc(mCurrentRcClientGen, 4317 null /*newMediaIntent*/, true /*clearing*/); 4318 } 4319 } 4320 } 4321 4322 /** 4323 * Called when processing MSG_RCDISPLAY_UPDATE event 4324 */ 4325 private void onRcDisplayUpdate(RemoteControlStackEntry rcse, int flags /* USED ?*/) { 4326 synchronized(mRCStack) { 4327 synchronized(mCurrentRcLock) { 4328 if ((mCurrentRcClient != null) && (mCurrentRcClient.equals(rcse.mRcClient))) { 4329 if (DEBUG_RC) Log.i(TAG, "Display/update remote control "); 4330 4331 mCurrentRcClientGen++; 4332 // synchronously update the displays and clients with 4333 // the new client generation 4334 setNewRcClient_syncRcsCurrc(mCurrentRcClientGen, 4335 rcse.mMediaIntent /*newMediaIntent*/, 4336 false /*clearing*/); 4337 4338 // tell the current client that it needs to send info 4339 try { 4340 mCurrentRcClient.onInformationRequested(mCurrentRcClientGen, 4341 flags, mArtworkExpectedWidth, mArtworkExpectedHeight); 4342 } catch (RemoteException e) { 4343 Log.e(TAG, "Current valid remote client is dead: "+e); 4344 mCurrentRcClient = null; 4345 } 4346 } else { 4347 // the remote control display owner has changed between the 4348 // the message to update the display was sent, and the time it 4349 // gets to be processed (now) 4350 } 4351 } 4352 } 4353 } 4354 4355 4356 /** 4357 * Helper function: 4358 * Called synchronized on mRCStack 4359 */ 4360 private void clearRemoteControlDisplay_syncAfRcs() { 4361 synchronized(mCurrentRcLock) { 4362 mCurrentRcClient = null; 4363 } 4364 // will cause onRcDisplayClear() to be called in AudioService's handler thread 4365 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_CLEAR) ); 4366 } 4367 4368 /** 4369 * Helper function for code readability: only to be called from 4370 * checkUpdateRemoteControlDisplay_syncAfRcs() which checks the preconditions for 4371 * this method. 4372 * Preconditions: 4373 * - called synchronized mAudioFocusLock then on mRCStack 4374 * - mRCStack.isEmpty() is false 4375 */ 4376 private void updateRemoteControlDisplay_syncAfRcs(int infoChangedFlags) { 4377 RemoteControlStackEntry rcse = mRCStack.peek(); 4378 int infoFlagsAboutToBeUsed = infoChangedFlags; 4379 // this is where we enforce opt-in for information display on the remote controls 4380 // with the new AudioManager.registerRemoteControlClient() API 4381 if (rcse.mRcClient == null) { 4382 //Log.w(TAG, "Can't update remote control display with null remote control client"); 4383 clearRemoteControlDisplay_syncAfRcs(); 4384 return; 4385 } 4386 synchronized(mCurrentRcLock) { 4387 if (!rcse.mRcClient.equals(mCurrentRcClient)) { 4388 // new RC client, assume every type of information shall be queried 4389 infoFlagsAboutToBeUsed = RC_INFO_ALL; 4390 } 4391 mCurrentRcClient = rcse.mRcClient; 4392 } 4393 // will cause onRcDisplayUpdate() to be called in AudioService's handler thread 4394 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_UPDATE, 4395 infoFlagsAboutToBeUsed /* arg1 */, 0, rcse /* obj, != null */) ); 4396 } 4397 4398 /** 4399 * Helper function: 4400 * Called synchronized on mAudioFocusLock, then mRCStack 4401 * Check whether the remote control display should be updated, triggers the update if required 4402 * @param infoChangedFlags the flags corresponding to the remote control client information 4403 * that has changed, if applicable (checking for the update conditions might trigger a 4404 * clear, rather than an update event). 4405 */ 4406 private void checkUpdateRemoteControlDisplay_syncAfRcs(int infoChangedFlags) { 4407 // determine whether the remote control display should be refreshed 4408 // if either stack is empty, there is a mismatch, so clear the RC display 4409 if (mRCStack.isEmpty() || mFocusStack.isEmpty()) { 4410 clearRemoteControlDisplay_syncAfRcs(); 4411 return; 4412 } 4413 // if the top of the two stacks belong to different packages, there is a mismatch, clear 4414 if ((mRCStack.peek().mCallingPackageName != null) 4415 && (mFocusStack.peek().mPackageName != null) 4416 && !(mRCStack.peek().mCallingPackageName.compareTo( 4417 mFocusStack.peek().mPackageName) == 0)) { 4418 clearRemoteControlDisplay_syncAfRcs(); 4419 return; 4420 } 4421 // if the audio focus didn't originate from the same Uid as the one in which the remote 4422 // control information will be retrieved, clear 4423 if (mRCStack.peek().mCallingUid != mFocusStack.peek().mCallingUid) { 4424 clearRemoteControlDisplay_syncAfRcs(); 4425 return; 4426 } 4427 // refresh conditions were verified: update the remote controls 4428 // ok to call: synchronized mAudioFocusLock then on mRCStack, mRCStack is not empty 4429 updateRemoteControlDisplay_syncAfRcs(infoChangedFlags); 4430 } 4431 4432 /** 4433 * see AudioManager.registerMediaButtonIntent(PendingIntent pi, ComponentName c) 4434 * precondition: mediaIntent != null, target != null 4435 */ 4436 public void registerMediaButtonIntent(PendingIntent mediaIntent, ComponentName eventReceiver) { 4437 Log.i(TAG, " Remote Control registerMediaButtonIntent() for " + mediaIntent); 4438 4439 synchronized(mAudioFocusLock) { 4440 synchronized(mRCStack) { 4441 pushMediaButtonReceiver(mediaIntent, eventReceiver); 4442 // new RC client, assume every type of information shall be queried 4443 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 4444 } 4445 } 4446 } 4447 4448 /** 4449 * see AudioManager.unregisterMediaButtonIntent(PendingIntent mediaIntent) 4450 * precondition: mediaIntent != null, eventReceiver != null 4451 */ 4452 public void unregisterMediaButtonIntent(PendingIntent mediaIntent, ComponentName eventReceiver) 4453 { 4454 Log.i(TAG, " Remote Control unregisterMediaButtonIntent() for " + mediaIntent); 4455 4456 synchronized(mAudioFocusLock) { 4457 synchronized(mRCStack) { 4458 boolean topOfStackWillChange = isCurrentRcController(mediaIntent); 4459 removeMediaButtonReceiver(mediaIntent); 4460 if (topOfStackWillChange) { 4461 // current RC client will change, assume every type of info needs to be queried 4462 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 4463 } 4464 } 4465 } 4466 } 4467 4468 /** 4469 * see AudioManager.registerMediaButtonEventReceiverForCalls(ComponentName c) 4470 * precondition: c != null 4471 */ 4472 public void registerMediaButtonEventReceiverForCalls(ComponentName c) { 4473 if (mContext.checkCallingPermission("android.permission.MODIFY_PHONE_STATE") 4474 != PackageManager.PERMISSION_GRANTED) { 4475 Log.e(TAG, "Invalid permissions to register media button receiver for calls"); 4476 return; 4477 } 4478 synchronized(mRCStack) { 4479 mMediaReceiverForCalls = c; 4480 } 4481 } 4482 4483 /** 4484 * see AudioManager.unregisterMediaButtonEventReceiverForCalls() 4485 */ 4486 public void unregisterMediaButtonEventReceiverForCalls() { 4487 if (mContext.checkCallingPermission("android.permission.MODIFY_PHONE_STATE") 4488 != PackageManager.PERMISSION_GRANTED) { 4489 Log.e(TAG, "Invalid permissions to unregister media button receiver for calls"); 4490 return; 4491 } 4492 synchronized(mRCStack) { 4493 mMediaReceiverForCalls = null; 4494 } 4495 } 4496 4497 /** 4498 * see AudioManager.registerRemoteControlClient(ComponentName eventReceiver, ...) 4499 * Note: using this method with rcClient == null is a way to "disable" the IRemoteControlClient 4500 * without modifying the RC stack, but while still causing the display to refresh (will 4501 * become blank as a result of this) 4502 */ 4503 public void registerRemoteControlClient(PendingIntent mediaIntent, 4504 IRemoteControlClient rcClient, String callingPackageName) { 4505 if (DEBUG_RC) Log.i(TAG, "Register remote control client rcClient="+rcClient); 4506 synchronized(mAudioFocusLock) { 4507 synchronized(mRCStack) { 4508 // store the new display information 4509 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4510 while(stackIterator.hasNext()) { 4511 RemoteControlStackEntry rcse = stackIterator.next(); 4512 if(rcse.mMediaIntent.equals(mediaIntent)) { 4513 // already had a remote control client? 4514 if (rcse.mRcClientDeathHandler != null) { 4515 // stop monitoring the old client's death 4516 rcse.unlinkToRcClientDeath(); 4517 } 4518 // save the new remote control client 4519 rcse.mRcClient = rcClient; 4520 rcse.mCallingPackageName = callingPackageName; 4521 rcse.mCallingUid = Binder.getCallingUid(); 4522 if (rcClient == null) { 4523 // here rcse.mRcClientDeathHandler is null; 4524 break; 4525 } 4526 4527 // there is a new (non-null) client: 4528 // 1/ give the new client the current display (if any) 4529 if (mRcDisplay != null) { 4530 try { 4531 rcse.mRcClient.plugRemoteControlDisplay(mRcDisplay); 4532 } catch (RemoteException e) { 4533 Log.e(TAG, "Error connecting remote control display to client: "+e); 4534 e.printStackTrace(); 4535 } 4536 } 4537 // 2/ monitor the new client's death 4538 IBinder b = rcse.mRcClient.asBinder(); 4539 RcClientDeathHandler rcdh = 4540 new RcClientDeathHandler(b, rcse.mMediaIntent); 4541 try { 4542 b.linkToDeath(rcdh, 0); 4543 } catch (RemoteException e) { 4544 // remote control client is DOA, disqualify it 4545 Log.w(TAG, "registerRemoteControlClient() has a dead client " + b); 4546 rcse.mRcClient = null; 4547 } 4548 rcse.mRcClientDeathHandler = rcdh; 4549 break; 4550 } 4551 } 4552 // if the eventReceiver is at the top of the stack 4553 // then check for potential refresh of the remote controls 4554 if (isCurrentRcController(mediaIntent)) { 4555 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 4556 } 4557 } 4558 } 4559 } 4560 4561 /** 4562 * see AudioManager.unregisterRemoteControlClient(PendingIntent pi, ...) 4563 * rcClient is guaranteed non-null 4564 */ 4565 public void unregisterRemoteControlClient(PendingIntent mediaIntent, 4566 IRemoteControlClient rcClient) { 4567 synchronized(mAudioFocusLock) { 4568 synchronized(mRCStack) { 4569 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4570 while(stackIterator.hasNext()) { 4571 RemoteControlStackEntry rcse = stackIterator.next(); 4572 if ((rcse.mMediaIntent.equals(mediaIntent)) 4573 && rcClient.equals(rcse.mRcClient)) { 4574 // we found the IRemoteControlClient to unregister 4575 // stop monitoring its death 4576 rcse.unlinkToRcClientDeath(); 4577 // reset the client-related fields 4578 rcse.mRcClient = null; 4579 rcse.mCallingPackageName = null; 4580 } 4581 } 4582 } 4583 } 4584 } 4585 4586 /** 4587 * The remote control displays. 4588 * Access synchronized on mRCStack 4589 * NOTE: Only one IRemoteControlDisplay supported in this implementation 4590 */ 4591 private IRemoteControlDisplay mRcDisplay; 4592 private RcDisplayDeathHandler mRcDisplayDeathHandler; 4593 private int mArtworkExpectedWidth = -1; 4594 private int mArtworkExpectedHeight = -1; 4595 /** 4596 * Inner class to monitor remote control display deaths, and unregister them from the list 4597 * of displays if necessary. 4598 */ 4599 private class RcDisplayDeathHandler implements IBinder.DeathRecipient { 4600 private IBinder mCb; // To be notified of client's death 4601 4602 public RcDisplayDeathHandler(IBinder b) { 4603 if (DEBUG_RC) Log.i(TAG, "new RcDisplayDeathHandler for "+b); 4604 mCb = b; 4605 } 4606 4607 public void binderDied() { 4608 synchronized(mRCStack) { 4609 Log.w(TAG, "RemoteControl: display died"); 4610 mRcDisplay = null; 4611 } 4612 } 4613 4614 public void unlinkToRcDisplayDeath() { 4615 if (DEBUG_RC) Log.i(TAG, "unlinkToRcDisplayDeath for "+mCb); 4616 try { 4617 mCb.unlinkToDeath(this, 0); 4618 } catch (java.util.NoSuchElementException e) { 4619 // not much we can do here, the display was being unregistered anyway 4620 Log.e(TAG, "Encountered " + e + " in unlinkToRcDisplayDeath()"); 4621 e.printStackTrace(); 4622 } 4623 } 4624 4625 } 4626 4627 private void rcDisplay_stopDeathMonitor_syncRcStack() { 4628 if (mRcDisplay != null) { // implies (mRcDisplayDeathHandler != null) 4629 // we had a display before, stop monitoring its death 4630 mRcDisplayDeathHandler.unlinkToRcDisplayDeath(); 4631 } 4632 } 4633 4634 private void rcDisplay_startDeathMonitor_syncRcStack() { 4635 if (mRcDisplay != null) { 4636 // new non-null display, monitor its death 4637 IBinder b = mRcDisplay.asBinder(); 4638 mRcDisplayDeathHandler = new RcDisplayDeathHandler(b); 4639 try { 4640 b.linkToDeath(mRcDisplayDeathHandler, 0); 4641 } catch (RemoteException e) { 4642 // remote control display is DOA, disqualify it 4643 Log.w(TAG, "registerRemoteControlDisplay() has a dead client " + b); 4644 mRcDisplay = null; 4645 } 4646 } 4647 } 4648 4649 /** 4650 * Register an IRemoteControlDisplay. 4651 * Notify all IRemoteControlClient of the new display and cause the RemoteControlClient 4652 * at the top of the stack to update the new display with its information. 4653 * Since only one IRemoteControlDisplay is supported, this will unregister the previous display. 4654 * @param rcd the IRemoteControlDisplay to register. No effect if null. 4655 */ 4656 public void registerRemoteControlDisplay(IRemoteControlDisplay rcd) { 4657 if (DEBUG_RC) Log.d(TAG, ">>> registerRemoteControlDisplay("+rcd+")"); 4658 synchronized(mAudioFocusLock) { 4659 synchronized(mRCStack) { 4660 if ((mRcDisplay == rcd) || (rcd == null)) { 4661 return; 4662 } 4663 // if we had a display before, stop monitoring its death 4664 rcDisplay_stopDeathMonitor_syncRcStack(); 4665 mRcDisplay = rcd; 4666 // new display, start monitoring its death 4667 rcDisplay_startDeathMonitor_syncRcStack(); 4668 4669 // let all the remote control clients there is a new display 4670 // no need to unplug the previous because we only support one display 4671 // and the clients don't track the death of the display 4672 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4673 while(stackIterator.hasNext()) { 4674 RemoteControlStackEntry rcse = stackIterator.next(); 4675 if(rcse.mRcClient != null) { 4676 try { 4677 rcse.mRcClient.plugRemoteControlDisplay(mRcDisplay); 4678 } catch (RemoteException e) { 4679 Log.e(TAG, "Error connecting remote control display to client: " + e); 4680 e.printStackTrace(); 4681 } 4682 } 4683 } 4684 4685 // we have a new display, of which all the clients are now aware: have it be updated 4686 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 4687 } 4688 } 4689 } 4690 4691 /** 4692 * Unregister an IRemoteControlDisplay. 4693 * Since only one IRemoteControlDisplay is supported, this has no effect if the one to 4694 * unregister is not the current one. 4695 * @param rcd the IRemoteControlDisplay to unregister. No effect if null. 4696 */ 4697 public void unregisterRemoteControlDisplay(IRemoteControlDisplay rcd) { 4698 if (DEBUG_RC) Log.d(TAG, "<<< unregisterRemoteControlDisplay("+rcd+")"); 4699 synchronized(mRCStack) { 4700 // only one display here, so you can only unregister the current display 4701 if ((rcd == null) || (rcd != mRcDisplay)) { 4702 if (DEBUG_RC) Log.w(TAG, " trying to unregister unregistered RCD"); 4703 return; 4704 } 4705 // if we had a display before, stop monitoring its death 4706 rcDisplay_stopDeathMonitor_syncRcStack(); 4707 mRcDisplay = null; 4708 4709 // disconnect this remote control display from all the clients 4710 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 4711 while(stackIterator.hasNext()) { 4712 RemoteControlStackEntry rcse = stackIterator.next(); 4713 if(rcse.mRcClient != null) { 4714 try { 4715 rcse.mRcClient.unplugRemoteControlDisplay(rcd); 4716 } catch (RemoteException e) { 4717 Log.e(TAG, "Error disconnecting remote control display to client: " + e); 4718 e.printStackTrace(); 4719 } 4720 } 4721 } 4722 } 4723 } 4724 4725 public void remoteControlDisplayUsesBitmapSize(IRemoteControlDisplay rcd, int w, int h) { 4726 synchronized(mRCStack) { 4727 // NOTE: Only one IRemoteControlDisplay supported in this implementation 4728 mArtworkExpectedWidth = w; 4729 mArtworkExpectedHeight = h; 4730 } 4731 } 4732 4733 //========================================================================================== 4734 // Device orientation 4735 //========================================================================================== 4736 /** 4737 * Handles device configuration changes that may map to a change in the orientation. 4738 * This feature is optional, and is defined by the definition and value of the 4739 * "ro.audio.monitorOrientation" system property. 4740 */ 4741 private void handleConfigurationChanged(Context context) { 4742 try { 4743 // reading new orientation "safely" (i.e. under try catch) in case anything 4744 // goes wrong when obtaining resources and configuration 4745 int newOrientation = context.getResources().getConfiguration().orientation; 4746 if (newOrientation != mDeviceOrientation) { 4747 mDeviceOrientation = newOrientation; 4748 setOrientationForAudioSystem(); 4749 } 4750 } catch (Exception e) { 4751 Log.e(TAG, "Error retrieving device orientation: " + e); 4752 } 4753 } 4754 4755 private void setOrientationForAudioSystem() { 4756 switch (mDeviceOrientation) { 4757 case Configuration.ORIENTATION_LANDSCAPE: 4758 //Log.i(TAG, "orientation is landscape"); 4759 AudioSystem.setParameters("orientation=landscape"); 4760 break; 4761 case Configuration.ORIENTATION_PORTRAIT: 4762 //Log.i(TAG, "orientation is portrait"); 4763 AudioSystem.setParameters("orientation=portrait"); 4764 break; 4765 case Configuration.ORIENTATION_SQUARE: 4766 //Log.i(TAG, "orientation is square"); 4767 AudioSystem.setParameters("orientation=square"); 4768 break; 4769 case Configuration.ORIENTATION_UNDEFINED: 4770 //Log.i(TAG, "orientation is undefined"); 4771 AudioSystem.setParameters("orientation=undefined"); 4772 break; 4773 default: 4774 Log.e(TAG, "Unknown orientation"); 4775 } 4776 } 4777 4778 4779 // Handles request to override default use of A2DP for media. 4780 public void setBluetoothA2dpOnInt(boolean on) { 4781 synchronized (mBluetoothA2dpEnabledLock) { 4782 mBluetoothA2dpEnabled = on; 4783 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 4784 AudioSystem.FOR_MEDIA, 4785 mBluetoothA2dpEnabled ? AudioSystem.FORCE_NONE : AudioSystem.FORCE_NO_BT_A2DP, 4786 null, 0); 4787 } 4788 } 4789 4790 @Override 4791 public void setRingtonePlayer(IRingtonePlayer player) { 4792 mContext.enforceCallingOrSelfPermission(REMOTE_AUDIO_PLAYBACK, null); 4793 mRingtonePlayer = player; 4794 } 4795 4796 @Override 4797 public IRingtonePlayer getRingtonePlayer() { 4798 return mRingtonePlayer; 4799 } 4800 4801 @Override 4802 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4803 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG); 4804 4805 // TODO probably a lot more to do here than just the audio focus and remote control stacks 4806 dumpFocusStack(pw); 4807 dumpRCStack(pw); 4808 dumpStreamStates(pw); 4809 } 4810} 4811