AudioService.java revision 8d4ed0d8e1e0e0f4a8ed7fc1407a850dc2190040
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 android.app.ActivityManagerNative; 20import android.bluetooth.BluetoothA2dp; 21import android.bluetooth.BluetoothAdapter; 22import android.bluetooth.BluetoothClass; 23import android.bluetooth.BluetoothDevice; 24import android.bluetooth.BluetoothHeadset; 25import android.bluetooth.BluetoothProfile; 26import android.content.BroadcastReceiver; 27import android.content.ComponentName; 28import android.content.ContentResolver; 29import android.content.Context; 30import android.content.Intent; 31import android.content.IntentFilter; 32import android.content.pm.PackageManager; 33import android.database.ContentObserver; 34import android.media.MediaPlayer.OnCompletionListener; 35import android.media.MediaPlayer.OnErrorListener; 36import android.os.Binder; 37import android.os.Environment; 38import android.os.Handler; 39import android.os.IBinder; 40import android.os.Looper; 41import android.os.Message; 42import android.os.RemoteException; 43import android.os.ServiceManager; 44import android.os.SystemProperties; 45import android.provider.Settings; 46import android.provider.Settings.System; 47import android.telephony.PhoneStateListener; 48import android.telephony.TelephonyManager; 49import android.util.Log; 50import android.view.KeyEvent; 51import android.view.VolumePanel; 52 53import com.android.internal.telephony.ITelephony; 54 55import java.io.FileDescriptor; 56import java.io.IOException; 57import java.io.PrintWriter; 58import java.lang.ref.SoftReference; 59import java.util.ArrayList; 60import java.util.HashMap; 61import java.util.Iterator; 62import java.util.List; 63import java.util.Map; 64import java.util.NoSuchElementException; 65import java.util.Set; 66import java.util.Stack; 67 68/** 69 * The implementation of the volume manager service. 70 * <p> 71 * This implementation focuses on delivering a responsive UI. Most methods are 72 * asynchronous to external calls. For example, the task of setting a volume 73 * will update our internal state, but in a separate thread will set the system 74 * volume and later persist to the database. Similarly, setting the ringer mode 75 * will update the state and broadcast a change and in a separate thread later 76 * persist the ringer mode. 77 * 78 * @hide 79 */ 80public class AudioService extends IAudioService.Stub { 81 82 private static final String TAG = "AudioService"; 83 84 /** How long to delay before persisting a change in volume/ringer mode. */ 85 private static final int PERSIST_DELAY = 3000; 86 87 private Context mContext; 88 private ContentResolver mContentResolver; 89 private boolean mVoiceCapable; 90 91 /** The UI */ 92 private VolumePanel mVolumePanel; 93 94 // sendMsg() flags 95 /** Used when a message should be shared across all stream types. */ 96 private static final int SHARED_MSG = -1; 97 /** If the msg is already queued, replace it with this one. */ 98 private static final int SENDMSG_REPLACE = 0; 99 /** If the msg is already queued, ignore this one and leave the old. */ 100 private static final int SENDMSG_NOOP = 1; 101 /** If the msg is already queued, queue this one and leave the old. */ 102 private static final int SENDMSG_QUEUE = 2; 103 104 // AudioHandler message.whats 105 private static final int MSG_SET_SYSTEM_VOLUME = 0; 106 private static final int MSG_PERSIST_VOLUME = 1; 107 private static final int MSG_PERSIST_RINGER_MODE = 3; 108 private static final int MSG_PERSIST_VIBRATE_SETTING = 4; 109 private static final int MSG_MEDIA_SERVER_DIED = 5; 110 private static final int MSG_MEDIA_SERVER_STARTED = 6; 111 private static final int MSG_PLAY_SOUND_EFFECT = 7; 112 private static final int MSG_BTA2DP_DOCK_TIMEOUT = 8; 113 private static final int MSG_LOAD_SOUND_EFFECTS = 9; 114 private static final int MSG_SET_FORCE_USE = 10; 115 private static final int MSG_PERSIST_MEDIABUTTONRECEIVER = 11; 116 private static final int MSG_BT_HEADSET_CNCT_FAILED = 12; 117 private static final int MSG_RCDISPLAY_CLEAR = 13; 118 private static final int MSG_RCDISPLAY_UPDATE = 14; 119 120 private static final int BTA2DP_DOCK_TIMEOUT_MILLIS = 8000; 121 // Timeout for connection to bluetooth headset service 122 private static final int BT_HEADSET_CNCT_TIMEOUT_MS = 3000; 123 124 125 /** @see AudioSystemThread */ 126 private AudioSystemThread mAudioSystemThread; 127 /** @see AudioHandler */ 128 private AudioHandler mAudioHandler; 129 /** @see VolumeStreamState */ 130 private VolumeStreamState[] mStreamStates; 131 private SettingsObserver mSettingsObserver; 132 133 private int mMode; 134 private Object mSettingsLock = new Object(); 135 private boolean mMediaServerOk; 136 137 private SoundPool mSoundPool; 138 private Object mSoundEffectsLock = new Object(); 139 private static final int NUM_SOUNDPOOL_CHANNELS = 4; 140 private static final int SOUND_EFFECT_VOLUME = 1000; 141 142 /* Sound effect file names */ 143 private static final String SOUND_EFFECTS_PATH = "/media/audio/ui/"; 144 private static final String[] SOUND_EFFECT_FILES = new String[] { 145 "Effect_Tick.ogg", 146 "KeypressStandard.ogg", 147 "KeypressSpacebar.ogg", 148 "KeypressDelete.ogg", 149 "KeypressReturn.ogg" 150 }; 151 152 /* Sound effect file name mapping sound effect id (AudioManager.FX_xxx) to 153 * file index in SOUND_EFFECT_FILES[] (first column) and indicating if effect 154 * uses soundpool (second column) */ 155 private int[][] SOUND_EFFECT_FILES_MAP = new int[][] { 156 {0, -1}, // FX_KEY_CLICK 157 {0, -1}, // FX_FOCUS_NAVIGATION_UP 158 {0, -1}, // FX_FOCUS_NAVIGATION_DOWN 159 {0, -1}, // FX_FOCUS_NAVIGATION_LEFT 160 {0, -1}, // FX_FOCUS_NAVIGATION_RIGHT 161 {1, -1}, // FX_KEYPRESS_STANDARD 162 {2, -1}, // FX_KEYPRESS_SPACEBAR 163 {3, -1}, // FX_FOCUS_DELETE 164 {4, -1} // FX_FOCUS_RETURN 165 }; 166 167 /** @hide Maximum volume index values for audio streams */ 168 private int[] MAX_STREAM_VOLUME = new int[] { 169 5, // STREAM_VOICE_CALL 170 7, // STREAM_SYSTEM 171 7, // STREAM_RING 172 15, // STREAM_MUSIC 173 7, // STREAM_ALARM 174 7, // STREAM_NOTIFICATION 175 15, // STREAM_BLUETOOTH_SCO 176 7, // STREAM_SYSTEM_ENFORCED 177 15, // STREAM_DTMF 178 15 // STREAM_TTS 179 }; 180 /* STREAM_VOLUME_ALIAS[] indicates for each stream if it uses the volume settings 181 * of another stream: This avoids multiplying the volume settings for hidden 182 * stream types that follow other stream behavior for volume settings 183 * NOTE: do not create loops in aliases! */ 184 private int[] STREAM_VOLUME_ALIAS = new int[] { 185 AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL 186 AudioSystem.STREAM_SYSTEM, // STREAM_SYSTEM 187 AudioSystem.STREAM_RING, // STREAM_RING 188 AudioSystem.STREAM_MUSIC, // STREAM_MUSIC 189 AudioSystem.STREAM_ALARM, // STREAM_ALARM 190 AudioSystem.STREAM_RING, // STREAM_NOTIFICATION 191 AudioSystem.STREAM_BLUETOOTH_SCO, // STREAM_BLUETOOTH_SCO 192 AudioSystem.STREAM_SYSTEM, // STREAM_SYSTEM_ENFORCED 193 AudioSystem.STREAM_VOICE_CALL, // STREAM_DTMF 194 AudioSystem.STREAM_MUSIC // STREAM_TTS 195 }; 196 197 private AudioSystem.ErrorCallback mAudioSystemCallback = new AudioSystem.ErrorCallback() { 198 public void onError(int error) { 199 switch (error) { 200 case AudioSystem.AUDIO_STATUS_SERVER_DIED: 201 if (mMediaServerOk) { 202 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SHARED_MSG, SENDMSG_NOOP, 0, 0, 203 null, 1500); 204 mMediaServerOk = false; 205 } 206 break; 207 case AudioSystem.AUDIO_STATUS_OK: 208 if (!mMediaServerOk) { 209 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_STARTED, SHARED_MSG, SENDMSG_NOOP, 0, 0, 210 null, 0); 211 mMediaServerOk = true; 212 } 213 break; 214 default: 215 break; 216 } 217 } 218 }; 219 220 /** 221 * Current ringer mode from one of {@link AudioManager#RINGER_MODE_NORMAL}, 222 * {@link AudioManager#RINGER_MODE_SILENT}, or 223 * {@link AudioManager#RINGER_MODE_VIBRATE}. 224 */ 225 private int mRingerMode; 226 227 /** @see System#MODE_RINGER_STREAMS_AFFECTED */ 228 private int mRingerModeAffectedStreams; 229 230 // Streams currently muted by ringer mode 231 private int mRingerModeMutedStreams; 232 233 /** @see System#MUTE_STREAMS_AFFECTED */ 234 private int mMuteAffectedStreams; 235 236 /** 237 * Has multiple bits per vibrate type to indicate the type's vibrate 238 * setting. See {@link #setVibrateSetting(int, int)}. 239 * <p> 240 * NOTE: This is not the final decision of whether vibrate is on/off for the 241 * type since it depends on the ringer mode. See {@link #shouldVibrate(int)}. 242 */ 243 private int mVibrateSetting; 244 245 // Broadcast receiver for device connections intent broadcasts 246 private final BroadcastReceiver mReceiver = new AudioServiceBroadcastReceiver(); 247 248 // Broadcast receiver for media button broadcasts (separate from mReceiver to 249 // independently change its priority) 250 private final BroadcastReceiver mMediaButtonReceiver = new MediaButtonBroadcastReceiver(); 251 252 // Used to alter media button redirection when the phone is ringing. 253 private boolean mIsRinging = false; 254 255 // Devices currently connected 256 private HashMap <Integer, String> mConnectedDevices = new HashMap <Integer, String>(); 257 258 // Forced device usage for communications 259 private int mForcedUseForComm; 260 261 // List of binder death handlers for setMode() client processes. 262 // The last process to have called setMode() is at the top of the list. 263 private ArrayList <SetModeDeathHandler> mSetModeDeathHandlers = new ArrayList <SetModeDeathHandler>(); 264 265 // List of clients having issued a SCO start request 266 private ArrayList <ScoClient> mScoClients = new ArrayList <ScoClient>(); 267 268 // BluetoothHeadset API to control SCO connection 269 private BluetoothHeadset mBluetoothHeadset; 270 271 // Bluetooth headset device 272 private BluetoothDevice mBluetoothHeadsetDevice; 273 274 // Indicate if SCO audio connection is currently active and if the initiator is 275 // audio service (internal) or bluetooth headset (external) 276 private int mScoAudioState; 277 // SCO audio state is not active 278 private static final int SCO_STATE_INACTIVE = 0; 279 // SCO audio activation request waiting for headset service to connect 280 private static final int SCO_STATE_ACTIVATE_REQ = 1; 281 // SCO audio state is active or starting due to a local request to start a virtual call 282 private static final int SCO_STATE_ACTIVE_INTERNAL = 3; 283 // SCO audio deactivation request waiting for headset service to connect 284 private static final int SCO_STATE_DEACTIVATE_REQ = 5; 285 286 // SCO audio state is active due to an action in BT handsfree (either voice recognition or 287 // in call audio) 288 private static final int SCO_STATE_ACTIVE_EXTERNAL = 2; 289 // Deactivation request for all SCO connections (initiated by audio mode change) 290 // waiting for headset service to connect 291 private static final int SCO_STATE_DEACTIVATE_EXT_REQ = 4; 292 293 // Current connection state indicated by bluetooth headset 294 private int mScoConnectionState; 295 296 // true if boot sequence has been completed 297 private boolean mBootCompleted; 298 // listener for SoundPool sample load completion indication 299 private SoundPoolCallback mSoundPoolCallBack; 300 // thread for SoundPool listener 301 private SoundPoolListenerThread mSoundPoolListenerThread; 302 // message looper for SoundPool listener 303 private Looper mSoundPoolLooper = null; 304 // default volume applied to sound played with playSoundEffect() 305 private static final int SOUND_EFFECT_DEFAULT_VOLUME_DB = -20; 306 // volume applied to sound played with playSoundEffect() read from ro.config.sound_fx_volume 307 private int SOUND_EFFECT_VOLUME_DB; 308 // getActiveStreamType() will return STREAM_NOTIFICATION during this period after a notification 309 // stopped 310 private static final int NOTIFICATION_VOLUME_DELAY_MS = 5000; 311 // previous volume adjustment direction received by checkForRingerModeChange() 312 private int mPrevVolDirection = AudioManager.ADJUST_SAME; 313 314 /////////////////////////////////////////////////////////////////////////// 315 // Construction 316 /////////////////////////////////////////////////////////////////////////// 317 318 /** @hide */ 319 public AudioService(Context context) { 320 mContext = context; 321 mContentResolver = context.getContentResolver(); 322 mVoiceCapable = mContext.getResources().getBoolean( 323 com.android.internal.R.bool.config_voice_capable); 324 325 // Intialized volume 326 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL] = SystemProperties.getInt( 327 "ro.config.vc_call_vol_steps", 328 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL]); 329 330 SOUND_EFFECT_VOLUME_DB = SystemProperties.getInt( 331 "ro.config.sound_fx_volume", 332 SOUND_EFFECT_DEFAULT_VOLUME_DB); 333 334 mVolumePanel = new VolumePanel(context, this); 335 mForcedUseForComm = AudioSystem.FORCE_NONE; 336 createAudioSystemThread(); 337 readPersistedSettings(); 338 mSettingsObserver = new SettingsObserver(); 339 createStreamStates(); 340 // Call setMode() to initialize mSetModeDeathHandlers 341 mMode = AudioSystem.MODE_INVALID; 342 setMode(AudioSystem.MODE_NORMAL, null); 343 mMediaServerOk = true; 344 345 // Call setRingerModeInt() to apply correct mute 346 // state on streams affected by ringer mode. 347 mRingerModeMutedStreams = 0; 348 setRingerModeInt(getRingerMode(), false); 349 350 AudioSystem.setErrorCallback(mAudioSystemCallback); 351 352 // Register for device connection intent broadcasts. 353 IntentFilter intentFilter = 354 new IntentFilter(Intent.ACTION_HEADSET_PLUG); 355 356 intentFilter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED); 357 intentFilter.addAction(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED); 358 intentFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); 359 intentFilter.addAction(Intent.ACTION_DOCK_EVENT); 360 intentFilter.addAction(Intent.ACTION_USB_ANLG_HEADSET_PLUG); 361 intentFilter.addAction(Intent.ACTION_USB_DGTL_HEADSET_PLUG); 362 intentFilter.addAction(Intent.ACTION_HDMI_AUDIO_PLUG); 363 intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED); 364 context.registerReceiver(mReceiver, intentFilter); 365 366 // Register for package removal intent broadcasts for media button receiver persistence 367 IntentFilter pkgFilter = new IntentFilter(); 368 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 369 pkgFilter.addDataScheme("package"); 370 context.registerReceiver(mReceiver, pkgFilter); 371 372 // Register for media button intent broadcasts. 373 intentFilter = new IntentFilter(Intent.ACTION_MEDIA_BUTTON); 374 // Workaround for bug on priority setting 375 //intentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 376 intentFilter.setPriority(Integer.MAX_VALUE); 377 context.registerReceiver(mMediaButtonReceiver, intentFilter); 378 379 // Register for phone state monitoring 380 TelephonyManager tmgr = (TelephonyManager) 381 context.getSystemService(Context.TELEPHONY_SERVICE); 382 tmgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 383 } 384 385 private void createAudioSystemThread() { 386 mAudioSystemThread = new AudioSystemThread(); 387 mAudioSystemThread.start(); 388 waitForAudioHandlerCreation(); 389 } 390 391 /** Waits for the volume handler to be created by the other thread. */ 392 private void waitForAudioHandlerCreation() { 393 synchronized(this) { 394 while (mAudioHandler == null) { 395 try { 396 // Wait for mAudioHandler to be set by the other thread 397 wait(); 398 } catch (InterruptedException e) { 399 Log.e(TAG, "Interrupted while waiting on volume handler."); 400 } 401 } 402 } 403 } 404 405 private void createStreamStates() { 406 int numStreamTypes = AudioSystem.getNumStreamTypes(); 407 VolumeStreamState[] streams = mStreamStates = new VolumeStreamState[numStreamTypes]; 408 409 for (int i = 0; i < numStreamTypes; i++) { 410 streams[i] = new VolumeStreamState(System.VOLUME_SETTINGS[STREAM_VOLUME_ALIAS[i]], i); 411 } 412 413 // Correct stream index values for streams with aliases 414 for (int i = 0; i < numStreamTypes; i++) { 415 if (STREAM_VOLUME_ALIAS[i] != i) { 416 int index = rescaleIndex(streams[i].mIndex, STREAM_VOLUME_ALIAS[i], i); 417 streams[i].mIndex = streams[i].getValidIndex(index); 418 setStreamVolumeIndex(i, index); 419 index = rescaleIndex(streams[i].mLastAudibleIndex, STREAM_VOLUME_ALIAS[i], i); 420 streams[i].mLastAudibleIndex = streams[i].getValidIndex(index); 421 } 422 } 423 } 424 425 private void readPersistedSettings() { 426 final ContentResolver cr = mContentResolver; 427 428 mRingerMode = System.getInt(cr, System.MODE_RINGER, AudioManager.RINGER_MODE_NORMAL); 429 // sanity check in case the settings are restored from a device with incompatible 430 // ringer modes 431 if (!AudioManager.isValidRingerMode(mRingerMode)) { 432 mRingerMode = AudioManager.RINGER_MODE_NORMAL; 433 System.putInt(cr, System.MODE_RINGER, mRingerMode); 434 } 435 436 mVibrateSetting = System.getInt(cr, System.VIBRATE_ON, 0); 437 438 // make sure settings for ringer mode are consistent with device type: non voice capable 439 // devices (tablets) include media stream in silent mode whereas phones don't. 440 mRingerModeAffectedStreams = Settings.System.getInt(cr, 441 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 442 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 443 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 444 if (mVoiceCapable) { 445 mRingerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 446 } else { 447 mRingerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 448 } 449 Settings.System.putInt(cr, 450 Settings.System.MODE_RINGER_STREAMS_AFFECTED, mRingerModeAffectedStreams); 451 452 mMuteAffectedStreams = System.getInt(cr, 453 System.MUTE_STREAMS_AFFECTED, 454 ((1 << AudioSystem.STREAM_MUSIC)|(1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_SYSTEM))); 455 456 // Each stream will read its own persisted settings 457 458 // Broadcast the sticky intent 459 broadcastRingerMode(); 460 461 // Broadcast vibrate settings 462 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_RINGER); 463 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_NOTIFICATION); 464 465 // Restore the default media button receiver from the system settings 466 restoreMediaButtonReceiver(); 467 } 468 469 private void setStreamVolumeIndex(int stream, int index) { 470 AudioSystem.setStreamVolumeIndex(stream, (index + 5)/10); 471 } 472 473 private int rescaleIndex(int index, int srcStream, int dstStream) { 474 return (index * mStreamStates[dstStream].getMaxIndex() + mStreamStates[srcStream].getMaxIndex() / 2) / mStreamStates[srcStream].getMaxIndex(); 475 } 476 477 /////////////////////////////////////////////////////////////////////////// 478 // IPC methods 479 /////////////////////////////////////////////////////////////////////////// 480 481 /** @see AudioManager#adjustVolume(int, int) */ 482 public void adjustVolume(int direction, int flags) { 483 adjustSuggestedStreamVolume(direction, AudioManager.USE_DEFAULT_STREAM_TYPE, flags); 484 } 485 486 /** @see AudioManager#adjustVolume(int, int, int) */ 487 public void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags) { 488 489 int streamType; 490 if ((flags & AudioManager.FLAG_FORCE_STREAM) != 0) { 491 streamType = suggestedStreamType; 492 } else { 493 streamType = getActiveStreamType(suggestedStreamType); 494 } 495 496 // Don't play sound on other streams 497 if (streamType != AudioSystem.STREAM_RING && (flags & AudioManager.FLAG_PLAY_SOUND) != 0) { 498 flags &= ~AudioManager.FLAG_PLAY_SOUND; 499 } 500 501 adjustStreamVolume(streamType, direction, flags); 502 } 503 504 /** @see AudioManager#adjustStreamVolume(int, int, int) */ 505 public void adjustStreamVolume(int streamType, int direction, int flags) { 506 ensureValidDirection(direction); 507 ensureValidStreamType(streamType); 508 509 510 VolumeStreamState streamState = mStreamStates[STREAM_VOLUME_ALIAS[streamType]]; 511 final int oldIndex = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 512 boolean adjustVolume = true; 513 514 // If either the client forces allowing ringer modes for this adjustment, 515 // or the stream type is one that is affected by ringer modes 516 if (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 517 (!mVoiceCapable && streamType != AudioSystem.STREAM_VOICE_CALL && 518 streamType != AudioSystem.STREAM_BLUETOOTH_SCO) || 519 (mVoiceCapable && streamType == AudioSystem.STREAM_RING)) { 520 // Check if the ringer mode changes with this volume adjustment. If 521 // it does, it will handle adjusting the volume, so we won't below 522 adjustVolume = checkForRingerModeChange(oldIndex, direction); 523 } 524 525 // If stream is muted, adjust last audible index only 526 int index; 527 if (streamState.muteCount() != 0) { 528 if (adjustVolume) { 529 streamState.adjustLastAudibleIndex(direction); 530 // Post a persist volume msg 531 sendMsg(mAudioHandler, MSG_PERSIST_VOLUME, streamType, 532 SENDMSG_REPLACE, 0, 1, streamState, PERSIST_DELAY); 533 } 534 index = streamState.mLastAudibleIndex; 535 } else { 536 if (adjustVolume && streamState.adjustIndex(direction)) { 537 // Post message to set system volume (it in turn will post a message 538 // to persist). Do not change volume if stream is muted. 539 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, STREAM_VOLUME_ALIAS[streamType], SENDMSG_NOOP, 0, 0, 540 streamState, 0); 541 } 542 index = streamState.mIndex; 543 } 544 545 sendVolumeUpdate(streamType, oldIndex, index, flags); 546 } 547 548 /** @see AudioManager#setStreamVolume(int, int, int) */ 549 public void setStreamVolume(int streamType, int index, int flags) { 550 ensureValidStreamType(streamType); 551 VolumeStreamState streamState = mStreamStates[STREAM_VOLUME_ALIAS[streamType]]; 552 553 final int oldIndex = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 554 555 index = rescaleIndex(index * 10, streamType, STREAM_VOLUME_ALIAS[streamType]); 556 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, false, true); 557 558 index = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 559 560 sendVolumeUpdate(streamType, oldIndex, index, flags); 561 } 562 563 // UI update and Broadcast Intent 564 private void sendVolumeUpdate(int streamType, int oldIndex, int index, int flags) { 565 if (!mVoiceCapable && (streamType == AudioSystem.STREAM_RING)) { 566 streamType = AudioSystem.STREAM_NOTIFICATION; 567 } 568 569 mVolumePanel.postVolumeChanged(streamType, flags); 570 571 oldIndex = (oldIndex + 5) / 10; 572 index = (index + 5) / 10; 573 Intent intent = new Intent(AudioManager.VOLUME_CHANGED_ACTION); 574 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, streamType); 575 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, index); 576 intent.putExtra(AudioManager.EXTRA_PREV_VOLUME_STREAM_VALUE, oldIndex); 577 mContext.sendBroadcast(intent); 578 } 579 580 /** 581 * Sets the stream state's index, and posts a message to set system volume. 582 * This will not call out to the UI. Assumes a valid stream type. 583 * 584 * @param streamType Type of the stream 585 * @param index Desired volume index of the stream 586 * @param force If true, set the volume even if the desired volume is same 587 * as the current volume. 588 * @param lastAudible If true, stores new index as last audible one 589 */ 590 private void setStreamVolumeInt(int streamType, int index, boolean force, boolean lastAudible) { 591 VolumeStreamState streamState = mStreamStates[streamType]; 592 593 // If stream is muted, set last audible index only 594 if (streamState.muteCount() != 0) { 595 // Do not allow last audible index to be 0 596 if (index != 0) { 597 streamState.setLastAudibleIndex(index); 598 // Post a persist volume msg 599 sendMsg(mAudioHandler, MSG_PERSIST_VOLUME, streamType, 600 SENDMSG_REPLACE, 0, 1, streamState, PERSIST_DELAY); 601 } 602 } else { 603 if (streamState.setIndex(index, lastAudible) || force) { 604 // Post message to set system volume (it in turn will post a message 605 // to persist). 606 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, streamType, SENDMSG_NOOP, 0, 0, 607 streamState, 0); 608 } 609 } 610 } 611 612 /** @see AudioManager#setStreamSolo(int, boolean) */ 613 public void setStreamSolo(int streamType, boolean state, IBinder cb) { 614 for (int stream = 0; stream < mStreamStates.length; stream++) { 615 if (!isStreamAffectedByMute(stream) || stream == streamType) continue; 616 // Bring back last audible volume 617 mStreamStates[stream].mute(cb, state); 618 } 619 } 620 621 /** @see AudioManager#setStreamMute(int, boolean) */ 622 public void setStreamMute(int streamType, boolean state, IBinder cb) { 623 if (isStreamAffectedByMute(streamType)) { 624 mStreamStates[streamType].mute(cb, state); 625 } 626 } 627 628 /** get stream mute state. */ 629 public boolean isStreamMute(int streamType) { 630 return (mStreamStates[streamType].muteCount() != 0); 631 } 632 633 /** @see AudioManager#getStreamVolume(int) */ 634 public int getStreamVolume(int streamType) { 635 ensureValidStreamType(streamType); 636 return (mStreamStates[streamType].mIndex + 5) / 10; 637 } 638 639 /** @see AudioManager#getStreamMaxVolume(int) */ 640 public int getStreamMaxVolume(int streamType) { 641 ensureValidStreamType(streamType); 642 return (mStreamStates[streamType].getMaxIndex() + 5) / 10; 643 } 644 645 646 /** Get last audible volume before stream was muted. */ 647 public int getLastAudibleStreamVolume(int streamType) { 648 ensureValidStreamType(streamType); 649 return (mStreamStates[streamType].mLastAudibleIndex + 5) / 10; 650 } 651 652 /** @see AudioManager#getRingerMode() */ 653 public int getRingerMode() { 654 return mRingerMode; 655 } 656 657 /** @see AudioManager#setRingerMode(int) */ 658 public void setRingerMode(int ringerMode) { 659 synchronized (mSettingsLock) { 660 if (ringerMode != mRingerMode) { 661 setRingerModeInt(ringerMode, true); 662 // Send sticky broadcast 663 broadcastRingerMode(); 664 } 665 } 666 } 667 668 private void setRingerModeInt(int ringerMode, boolean persist) { 669 mRingerMode = ringerMode; 670 671 // Mute stream if not previously muted by ringer mode and ringer mode 672 // is not RINGER_MODE_NORMAL and stream is affected by ringer mode. 673 // Unmute stream if previously muted by ringer mode and ringer mode 674 // is RINGER_MODE_NORMAL or stream is not affected by ringer mode. 675 int numStreamTypes = AudioSystem.getNumStreamTypes(); 676 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 677 if (isStreamMutedByRingerMode(streamType)) { 678 if (!isStreamAffectedByRingerMode(streamType) || 679 mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 680 mStreamStates[streamType].mute(null, false); 681 mRingerModeMutedStreams &= ~(1 << streamType); 682 } 683 } else { 684 if (isStreamAffectedByRingerMode(streamType) && 685 mRingerMode != AudioManager.RINGER_MODE_NORMAL) { 686 mStreamStates[streamType].mute(null, true); 687 mRingerModeMutedStreams |= (1 << streamType); 688 } 689 } 690 } 691 692 // Post a persist ringer mode msg 693 if (persist) { 694 sendMsg(mAudioHandler, MSG_PERSIST_RINGER_MODE, SHARED_MSG, 695 SENDMSG_REPLACE, 0, 0, null, PERSIST_DELAY); 696 } 697 } 698 699 /** @see AudioManager#shouldVibrate(int) */ 700 public boolean shouldVibrate(int vibrateType) { 701 702 switch (getVibrateSetting(vibrateType)) { 703 704 case AudioManager.VIBRATE_SETTING_ON: 705 return mRingerMode != AudioManager.RINGER_MODE_SILENT; 706 707 case AudioManager.VIBRATE_SETTING_ONLY_SILENT: 708 return mRingerMode == AudioManager.RINGER_MODE_VIBRATE; 709 710 case AudioManager.VIBRATE_SETTING_OFF: 711 // return false, even for incoming calls 712 return false; 713 714 default: 715 return false; 716 } 717 } 718 719 /** @see AudioManager#getVibrateSetting(int) */ 720 public int getVibrateSetting(int vibrateType) { 721 return (mVibrateSetting >> (vibrateType * 2)) & 3; 722 } 723 724 /** @see AudioManager#setVibrateSetting(int, int) */ 725 public void setVibrateSetting(int vibrateType, int vibrateSetting) { 726 727 mVibrateSetting = getValueForVibrateSetting(mVibrateSetting, vibrateType, vibrateSetting); 728 729 // Broadcast change 730 broadcastVibrateSetting(vibrateType); 731 732 // Post message to set ringer mode (it in turn will post a message 733 // to persist) 734 sendMsg(mAudioHandler, MSG_PERSIST_VIBRATE_SETTING, SHARED_MSG, SENDMSG_NOOP, 0, 0, 735 null, 0); 736 } 737 738 /** 739 * @see #setVibrateSetting(int, int) 740 */ 741 public static int getValueForVibrateSetting(int existingValue, int vibrateType, 742 int vibrateSetting) { 743 744 // First clear the existing setting. Each vibrate type has two bits in 745 // the value. Note '3' is '11' in binary. 746 existingValue &= ~(3 << (vibrateType * 2)); 747 748 // Set into the old value 749 existingValue |= (vibrateSetting & 3) << (vibrateType * 2); 750 751 return existingValue; 752 } 753 754 private class SetModeDeathHandler implements IBinder.DeathRecipient { 755 private IBinder mCb; // To be notified of client's death 756 private int mMode = AudioSystem.MODE_NORMAL; // Current mode set by this client 757 758 SetModeDeathHandler(IBinder cb) { 759 mCb = cb; 760 } 761 762 public void binderDied() { 763 synchronized(mSetModeDeathHandlers) { 764 Log.w(TAG, "setMode() client died"); 765 int index = mSetModeDeathHandlers.indexOf(this); 766 if (index < 0) { 767 Log.w(TAG, "unregistered setMode() client died"); 768 } else { 769 mSetModeDeathHandlers.remove(this); 770 // If dead client was a the top of client list, 771 // apply next mode in the stack 772 if (index == 0) { 773 // mSetModeDeathHandlers is never empty as the initial entry 774 // created when AudioService starts is never removed 775 SetModeDeathHandler hdlr = mSetModeDeathHandlers.get(0); 776 int mode = hdlr.getMode(); 777 if (AudioService.this.mMode != mode) { 778 if (AudioSystem.setPhoneState(mode) == AudioSystem.AUDIO_STATUS_OK) { 779 AudioService.this.mMode = mode; 780 if (mode != AudioSystem.MODE_NORMAL) { 781 disconnectBluetoothSco(mCb); 782 } 783 } 784 } 785 } 786 } 787 } 788 } 789 790 public void setMode(int mode) { 791 mMode = mode; 792 } 793 794 public int getMode() { 795 return mMode; 796 } 797 798 public IBinder getBinder() { 799 return mCb; 800 } 801 } 802 803 /** @see AudioManager#setMode(int) */ 804 public void setMode(int mode, IBinder cb) { 805 if (!checkAudioSettingsPermission("setMode()")) { 806 return; 807 } 808 809 if (mode < AudioSystem.MODE_CURRENT || mode >= AudioSystem.NUM_MODES) { 810 return; 811 } 812 813 synchronized (mSettingsLock) { 814 if (mode == AudioSystem.MODE_CURRENT) { 815 mode = mMode; 816 } 817 if (mode != mMode) { 818 819 // automatically handle audio focus for mode changes 820 handleFocusForCalls(mMode, mode, cb); 821 822 if (AudioSystem.setPhoneState(mode) == AudioSystem.AUDIO_STATUS_OK) { 823 mMode = mode; 824 825 synchronized(mSetModeDeathHandlers) { 826 SetModeDeathHandler hdlr = null; 827 Iterator iter = mSetModeDeathHandlers.iterator(); 828 while (iter.hasNext()) { 829 SetModeDeathHandler h = (SetModeDeathHandler)iter.next(); 830 if (h.getBinder() == cb) { 831 hdlr = h; 832 // Remove from client list so that it is re-inserted at top of list 833 iter.remove(); 834 break; 835 } 836 } 837 if (hdlr == null) { 838 hdlr = new SetModeDeathHandler(cb); 839 // cb is null when setMode() is called by AudioService constructor 840 if (cb != null) { 841 // Register for client death notification 842 try { 843 cb.linkToDeath(hdlr, 0); 844 } catch (RemoteException e) { 845 // Client has died! 846 Log.w(TAG, "setMode() could not link to "+cb+" binder death"); 847 } 848 } 849 } 850 // Last client to call setMode() is always at top of client list 851 // as required by SetModeDeathHandler.binderDied() 852 mSetModeDeathHandlers.add(0, hdlr); 853 hdlr.setMode(mode); 854 } 855 856 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 857 // SCO connections not started by the application changing the mode 858 if (mode != AudioSystem.MODE_NORMAL) { 859 disconnectBluetoothSco(cb); 860 } 861 } 862 } 863 int streamType = getActiveStreamType(AudioManager.USE_DEFAULT_STREAM_TYPE); 864 int index = mStreamStates[STREAM_VOLUME_ALIAS[streamType]].mIndex; 865 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, true, false); 866 } 867 } 868 869 /** pre-condition: oldMode != newMode */ 870 private void handleFocusForCalls(int oldMode, int newMode, IBinder cb) { 871 // if ringing 872 if (newMode == AudioSystem.MODE_RINGTONE) { 873 // if not ringing silently 874 int ringVolume = AudioService.this.getStreamVolume(AudioManager.STREAM_RING); 875 if (ringVolume > 0) { 876 // request audio focus for the communication focus entry 877 requestAudioFocus(AudioManager.STREAM_RING, 878 AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, cb, 879 null /* IAudioFocusDispatcher allowed to be null only for this clientId */, 880 IN_VOICE_COMM_FOCUS_ID /*clientId*/, 881 "system"); 882 883 } 884 } 885 // if entering call 886 else if ((newMode == AudioSystem.MODE_IN_CALL) 887 || (newMode == AudioSystem.MODE_IN_COMMUNICATION)) { 888 // request audio focus for the communication focus entry 889 // (it's ok if focus was already requested during ringing) 890 requestAudioFocus(AudioManager.STREAM_RING, 891 AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, cb, 892 null /* IAudioFocusDispatcher allowed to be null only for this clientId */, 893 IN_VOICE_COMM_FOCUS_ID /*clientId*/, 894 "system"); 895 } 896 // if exiting call 897 else if (newMode == AudioSystem.MODE_NORMAL) { 898 // abandon audio focus for communication focus entry 899 abandonAudioFocus(null, IN_VOICE_COMM_FOCUS_ID); 900 } 901 } 902 903 /** @see AudioManager#getMode() */ 904 public int getMode() { 905 return mMode; 906 } 907 908 /** @see AudioManager#playSoundEffect(int) */ 909 public void playSoundEffect(int effectType) { 910 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SHARED_MSG, SENDMSG_NOOP, 911 effectType, -1, null, 0); 912 } 913 914 /** @see AudioManager#playSoundEffect(int, float) */ 915 public void playSoundEffectVolume(int effectType, float volume) { 916 loadSoundEffects(); 917 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SHARED_MSG, SENDMSG_NOOP, 918 effectType, (int) (volume * 1000), null, 0); 919 } 920 921 /** 922 * Loads samples into the soundpool. 923 * This method must be called at when sound effects are enabled 924 */ 925 public boolean loadSoundEffects() { 926 int status; 927 928 synchronized (mSoundEffectsLock) { 929 if (!mBootCompleted) { 930 Log.w(TAG, "loadSoundEffects() called before boot complete"); 931 return false; 932 } 933 934 if (mSoundPool != null) { 935 return true; 936 } 937 mSoundPool = new SoundPool(NUM_SOUNDPOOL_CHANNELS, AudioSystem.STREAM_SYSTEM, 0); 938 if (mSoundPool == null) { 939 Log.w(TAG, "loadSoundEffects() could not allocate sound pool"); 940 return false; 941 } 942 943 try { 944 mSoundPoolCallBack = null; 945 mSoundPoolListenerThread = new SoundPoolListenerThread(); 946 mSoundPoolListenerThread.start(); 947 // Wait for mSoundPoolCallBack to be set by the other thread 948 mSoundEffectsLock.wait(); 949 } catch (InterruptedException e) { 950 Log.w(TAG, "Interrupted while waiting sound pool listener thread."); 951 } 952 953 if (mSoundPoolCallBack == null) { 954 Log.w(TAG, "loadSoundEffects() could not create SoundPool listener or thread"); 955 if (mSoundPoolLooper != null) { 956 mSoundPoolLooper.quit(); 957 mSoundPoolLooper = null; 958 } 959 mSoundPoolListenerThread = null; 960 mSoundPool.release(); 961 mSoundPool = null; 962 return false; 963 } 964 /* 965 * poolId table: The value -1 in this table indicates that corresponding 966 * file (same index in SOUND_EFFECT_FILES[] has not been loaded. 967 * Once loaded, the value in poolId is the sample ID and the same 968 * sample can be reused for another effect using the same file. 969 */ 970 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 971 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 972 poolId[fileIdx] = -1; 973 } 974 /* 975 * Effects whose value in SOUND_EFFECT_FILES_MAP[effect][1] is -1 must be loaded. 976 * If load succeeds, value in SOUND_EFFECT_FILES_MAP[effect][1] is > 0: 977 * this indicates we have a valid sample loaded for this effect. 978 */ 979 980 int lastSample = 0; 981 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 982 // Do not load sample if this effect uses the MediaPlayer 983 if (SOUND_EFFECT_FILES_MAP[effect][1] == 0) { 984 continue; 985 } 986 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == -1) { 987 String filePath = Environment.getRootDirectory() 988 + SOUND_EFFECTS_PATH 989 + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effect][0]]; 990 int sampleId = mSoundPool.load(filePath, 0); 991 if (sampleId <= 0) { 992 Log.w(TAG, "Soundpool could not load file: "+filePath); 993 } else { 994 SOUND_EFFECT_FILES_MAP[effect][1] = sampleId; 995 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = sampleId; 996 lastSample = sampleId; 997 } 998 } else { 999 SOUND_EFFECT_FILES_MAP[effect][1] = poolId[SOUND_EFFECT_FILES_MAP[effect][0]]; 1000 } 1001 } 1002 // wait for all samples to be loaded 1003 if (lastSample != 0) { 1004 mSoundPoolCallBack.setLastSample(lastSample); 1005 1006 try { 1007 mSoundEffectsLock.wait(); 1008 status = mSoundPoolCallBack.status(); 1009 } catch (java.lang.InterruptedException e) { 1010 Log.w(TAG, "Interrupted while waiting sound pool callback."); 1011 status = -1; 1012 } 1013 } else { 1014 status = -1; 1015 } 1016 1017 if (mSoundPoolLooper != null) { 1018 mSoundPoolLooper.quit(); 1019 mSoundPoolLooper = null; 1020 } 1021 mSoundPoolListenerThread = null; 1022 if (status != 0) { 1023 Log.w(TAG, 1024 "loadSoundEffects(), Error " 1025 + ((lastSample != 0) ? mSoundPoolCallBack.status() : -1) 1026 + " while loading samples"); 1027 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1028 if (SOUND_EFFECT_FILES_MAP[effect][1] > 0) { 1029 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1030 } 1031 } 1032 1033 mSoundPool.release(); 1034 mSoundPool = null; 1035 } 1036 } 1037 return (status == 0); 1038 } 1039 1040 /** 1041 * Unloads samples from the sound pool. 1042 * This method can be called to free some memory when 1043 * sound effects are disabled. 1044 */ 1045 public void unloadSoundEffects() { 1046 synchronized (mSoundEffectsLock) { 1047 if (mSoundPool == null) { 1048 return; 1049 } 1050 1051 mAudioHandler.removeMessages(MSG_LOAD_SOUND_EFFECTS); 1052 mAudioHandler.removeMessages(MSG_PLAY_SOUND_EFFECT); 1053 1054 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1055 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1056 poolId[fileIdx] = 0; 1057 } 1058 1059 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1060 if (SOUND_EFFECT_FILES_MAP[effect][1] <= 0) { 1061 continue; 1062 } 1063 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == 0) { 1064 mSoundPool.unload(SOUND_EFFECT_FILES_MAP[effect][1]); 1065 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1066 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = -1; 1067 } 1068 } 1069 mSoundPool.release(); 1070 mSoundPool = null; 1071 } 1072 } 1073 1074 class SoundPoolListenerThread extends Thread { 1075 public SoundPoolListenerThread() { 1076 super("SoundPoolListenerThread"); 1077 } 1078 1079 @Override 1080 public void run() { 1081 1082 Looper.prepare(); 1083 mSoundPoolLooper = Looper.myLooper(); 1084 1085 synchronized (mSoundEffectsLock) { 1086 if (mSoundPool != null) { 1087 mSoundPoolCallBack = new SoundPoolCallback(); 1088 mSoundPool.setOnLoadCompleteListener(mSoundPoolCallBack); 1089 } 1090 mSoundEffectsLock.notify(); 1091 } 1092 Looper.loop(); 1093 } 1094 } 1095 1096 private final class SoundPoolCallback implements 1097 android.media.SoundPool.OnLoadCompleteListener { 1098 1099 int mStatus; 1100 int mLastSample; 1101 1102 public int status() { 1103 return mStatus; 1104 } 1105 1106 public void setLastSample(int sample) { 1107 mLastSample = sample; 1108 } 1109 1110 public void onLoadComplete(SoundPool soundPool, int sampleId, int status) { 1111 synchronized (mSoundEffectsLock) { 1112 if (status != 0) { 1113 mStatus = status; 1114 } 1115 if (sampleId == mLastSample) { 1116 mSoundEffectsLock.notify(); 1117 } 1118 } 1119 } 1120 } 1121 1122 /** @see AudioManager#reloadAudioSettings() */ 1123 public void reloadAudioSettings() { 1124 // restore ringer mode, ringer mode affected streams, mute affected streams and vibrate settings 1125 readPersistedSettings(); 1126 1127 // restore volume settings 1128 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1129 for (int streamType = 0; streamType < numStreamTypes; streamType++) { 1130 VolumeStreamState streamState = mStreamStates[streamType]; 1131 1132 String settingName = System.VOLUME_SETTINGS[STREAM_VOLUME_ALIAS[streamType]]; 1133 String lastAudibleSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 1134 int index = Settings.System.getInt(mContentResolver, 1135 settingName, 1136 AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1137 if (STREAM_VOLUME_ALIAS[streamType] != streamType) { 1138 index = rescaleIndex(index * 10, STREAM_VOLUME_ALIAS[streamType], streamType); 1139 } else { 1140 index *= 10; 1141 } 1142 streamState.mIndex = streamState.getValidIndex(index); 1143 1144 index = (index + 5) / 10; 1145 index = Settings.System.getInt(mContentResolver, 1146 lastAudibleSettingName, 1147 (index > 0) ? index : AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1148 if (STREAM_VOLUME_ALIAS[streamType] != streamType) { 1149 index = rescaleIndex(index * 10, STREAM_VOLUME_ALIAS[streamType], streamType); 1150 } else { 1151 index *= 10; 1152 } 1153 streamState.mLastAudibleIndex = streamState.getValidIndex(index); 1154 1155 // unmute stream that was muted but is not affect by mute anymore 1156 if (streamState.muteCount() != 0 && !isStreamAffectedByMute(streamType)) { 1157 int size = streamState.mDeathHandlers.size(); 1158 for (int i = 0; i < size; i++) { 1159 streamState.mDeathHandlers.get(i).mMuteCount = 1; 1160 streamState.mDeathHandlers.get(i).mute(false); 1161 } 1162 } 1163 // apply stream volume 1164 if (streamState.muteCount() == 0) { 1165 setStreamVolumeIndex(streamType, streamState.mIndex); 1166 } 1167 } 1168 1169 // apply new ringer mode 1170 setRingerModeInt(getRingerMode(), false); 1171 } 1172 1173 /** @see AudioManager#setSpeakerphoneOn() */ 1174 public void setSpeakerphoneOn(boolean on){ 1175 if (!checkAudioSettingsPermission("setSpeakerphoneOn()")) { 1176 return; 1177 } 1178 mForcedUseForComm = on ? AudioSystem.FORCE_SPEAKER : AudioSystem.FORCE_NONE; 1179 1180 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SHARED_MSG, SENDMSG_QUEUE, 1181 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1182 } 1183 1184 /** @see AudioManager#isSpeakerphoneOn() */ 1185 public boolean isSpeakerphoneOn() { 1186 return (mForcedUseForComm == AudioSystem.FORCE_SPEAKER); 1187 } 1188 1189 /** @see AudioManager#setBluetoothScoOn() */ 1190 public void setBluetoothScoOn(boolean on){ 1191 if (!checkAudioSettingsPermission("setBluetoothScoOn()")) { 1192 return; 1193 } 1194 mForcedUseForComm = on ? AudioSystem.FORCE_BT_SCO : AudioSystem.FORCE_NONE; 1195 1196 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SHARED_MSG, SENDMSG_QUEUE, 1197 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1198 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SHARED_MSG, SENDMSG_QUEUE, 1199 AudioSystem.FOR_RECORD, mForcedUseForComm, null, 0); 1200 } 1201 1202 /** @see AudioManager#isBluetoothScoOn() */ 1203 public boolean isBluetoothScoOn() { 1204 return (mForcedUseForComm == AudioSystem.FORCE_BT_SCO); 1205 } 1206 1207 /** @see AudioManager#startBluetoothSco() */ 1208 public void startBluetoothSco(IBinder cb){ 1209 if (!checkAudioSettingsPermission("startBluetoothSco()") || 1210 !mBootCompleted) { 1211 return; 1212 } 1213 ScoClient client = getScoClient(cb, true); 1214 client.incCount(); 1215 } 1216 1217 /** @see AudioManager#stopBluetoothSco() */ 1218 public void stopBluetoothSco(IBinder cb){ 1219 if (!checkAudioSettingsPermission("stopBluetoothSco()") || 1220 !mBootCompleted) { 1221 return; 1222 } 1223 ScoClient client = getScoClient(cb, false); 1224 if (client != null) { 1225 client.decCount(); 1226 } 1227 } 1228 1229 private class ScoClient implements IBinder.DeathRecipient { 1230 private IBinder mCb; // To be notified of client's death 1231 private int mStartcount; // number of SCO connections started by this client 1232 1233 ScoClient(IBinder cb) { 1234 mCb = cb; 1235 mStartcount = 0; 1236 } 1237 1238 public void binderDied() { 1239 synchronized(mScoClients) { 1240 Log.w(TAG, "SCO client died"); 1241 int index = mScoClients.indexOf(this); 1242 if (index < 0) { 1243 Log.w(TAG, "unregistered SCO client died"); 1244 } else { 1245 clearCount(true); 1246 mScoClients.remove(this); 1247 } 1248 } 1249 } 1250 1251 public void incCount() { 1252 synchronized(mScoClients) { 1253 requestScoState(BluetoothHeadset.STATE_AUDIO_CONNECTED); 1254 if (mStartcount == 0) { 1255 try { 1256 mCb.linkToDeath(this, 0); 1257 } catch (RemoteException e) { 1258 // client has already died! 1259 Log.w(TAG, "ScoClient incCount() could not link to "+mCb+" binder death"); 1260 } 1261 } 1262 mStartcount++; 1263 } 1264 } 1265 1266 public void decCount() { 1267 synchronized(mScoClients) { 1268 if (mStartcount == 0) { 1269 Log.w(TAG, "ScoClient.decCount() already 0"); 1270 } else { 1271 mStartcount--; 1272 if (mStartcount == 0) { 1273 try { 1274 mCb.unlinkToDeath(this, 0); 1275 } catch (NoSuchElementException e) { 1276 Log.w(TAG, "decCount() going to 0 but not registered to binder"); 1277 } 1278 } 1279 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1280 } 1281 } 1282 } 1283 1284 public void clearCount(boolean stopSco) { 1285 synchronized(mScoClients) { 1286 if (mStartcount != 0) { 1287 try { 1288 mCb.unlinkToDeath(this, 0); 1289 } catch (NoSuchElementException e) { 1290 Log.w(TAG, "clearCount() mStartcount: "+mStartcount+" != 0 but not registered to binder"); 1291 } 1292 } 1293 mStartcount = 0; 1294 if (stopSco) { 1295 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1296 } 1297 } 1298 } 1299 1300 public int getCount() { 1301 return mStartcount; 1302 } 1303 1304 public IBinder getBinder() { 1305 return mCb; 1306 } 1307 1308 public int totalCount() { 1309 synchronized(mScoClients) { 1310 int count = 0; 1311 int size = mScoClients.size(); 1312 for (int i = 0; i < size; i++) { 1313 count += mScoClients.get(i).getCount(); 1314 } 1315 return count; 1316 } 1317 } 1318 1319 private void requestScoState(int state) { 1320 checkScoAudioState(); 1321 if (totalCount() == 0) { 1322 if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) { 1323 // Make sure that the state transitions to CONNECTING even if we cannot initiate 1324 // the connection. 1325 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTING); 1326 // Accept SCO audio activation only in NORMAL audio mode or if the mode is 1327 // currently controlled by the same client. 1328 if ((AudioService.this.mMode == AudioSystem.MODE_NORMAL || 1329 mSetModeDeathHandlers.get(0).getBinder() == mCb) && 1330 mBluetoothHeadsetDevice != null && 1331 (mScoAudioState == SCO_STATE_INACTIVE || 1332 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 1333 if (mScoAudioState == SCO_STATE_INACTIVE) { 1334 if (mBluetoothHeadset != null) { 1335 if (mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1336 mBluetoothHeadsetDevice)) { 1337 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1338 } else { 1339 broadcastScoConnectionState( 1340 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1341 } 1342 } else if (getBluetoothHeadset()) { 1343 mScoAudioState = SCO_STATE_ACTIVATE_REQ; 1344 } 1345 } else { 1346 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1347 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTED); 1348 } 1349 } else { 1350 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1351 } 1352 } else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED && 1353 mBluetoothHeadsetDevice != null && 1354 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 1355 mScoAudioState == SCO_STATE_ACTIVATE_REQ)) { 1356 if (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL) { 1357 if (mBluetoothHeadset != null) { 1358 if (!mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1359 mBluetoothHeadsetDevice)) { 1360 mScoAudioState = SCO_STATE_INACTIVE; 1361 broadcastScoConnectionState( 1362 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1363 } 1364 } else if (getBluetoothHeadset()) { 1365 mScoAudioState = SCO_STATE_DEACTIVATE_REQ; 1366 } 1367 } else { 1368 mScoAudioState = SCO_STATE_INACTIVE; 1369 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1370 } 1371 } 1372 } 1373 } 1374 } 1375 1376 private void checkScoAudioState() { 1377 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null && 1378 mScoAudioState == SCO_STATE_INACTIVE && 1379 mBluetoothHeadset.getAudioState(mBluetoothHeadsetDevice) 1380 != BluetoothHeadset.STATE_AUDIO_DISCONNECTED) { 1381 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 1382 } 1383 } 1384 1385 private ScoClient getScoClient(IBinder cb, boolean create) { 1386 synchronized(mScoClients) { 1387 ScoClient client = null; 1388 int size = mScoClients.size(); 1389 for (int i = 0; i < size; i++) { 1390 client = mScoClients.get(i); 1391 if (client.getBinder() == cb) 1392 return client; 1393 } 1394 if (create) { 1395 client = new ScoClient(cb); 1396 mScoClients.add(client); 1397 } 1398 return client; 1399 } 1400 } 1401 1402 public void clearAllScoClients(IBinder exceptBinder, boolean stopSco) { 1403 synchronized(mScoClients) { 1404 ScoClient savedClient = null; 1405 int size = mScoClients.size(); 1406 for (int i = 0; i < size; i++) { 1407 ScoClient cl = mScoClients.get(i); 1408 if (cl.getBinder() != exceptBinder) { 1409 cl.clearCount(stopSco); 1410 } else { 1411 savedClient = cl; 1412 } 1413 } 1414 mScoClients.clear(); 1415 if (savedClient != null) { 1416 mScoClients.add(savedClient); 1417 } 1418 } 1419 } 1420 1421 private boolean getBluetoothHeadset() { 1422 boolean result = false; 1423 BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 1424 if (adapter != null) { 1425 result = adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener, 1426 BluetoothProfile.HEADSET); 1427 } 1428 // If we could not get a bluetooth headset proxy, send a failure message 1429 // without delay to reset the SCO audio state and clear SCO clients. 1430 // If we could get a proxy, send a delayed failure message that will reset our state 1431 // in case we don't receive onServiceConnected(). 1432 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 0, 1433 SENDMSG_REPLACE, 0, 0, null, result ? BT_HEADSET_CNCT_TIMEOUT_MS : 0); 1434 return result; 1435 } 1436 1437 private void disconnectBluetoothSco(IBinder exceptBinder) { 1438 synchronized(mScoClients) { 1439 checkScoAudioState(); 1440 if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL || 1441 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1442 if (mBluetoothHeadsetDevice != null) { 1443 if (mBluetoothHeadset != null) { 1444 if (!mBluetoothHeadset.stopVoiceRecognition( 1445 mBluetoothHeadsetDevice)) { 1446 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 0, 1447 SENDMSG_REPLACE, 0, 0, null, 0); 1448 } 1449 } else if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL && 1450 getBluetoothHeadset()) { 1451 mScoAudioState = SCO_STATE_DEACTIVATE_EXT_REQ; 1452 } 1453 } 1454 } else { 1455 clearAllScoClients(exceptBinder, true); 1456 } 1457 } 1458 } 1459 1460 private void resetBluetoothSco() { 1461 synchronized(mScoClients) { 1462 clearAllScoClients(null, false); 1463 mScoAudioState = SCO_STATE_INACTIVE; 1464 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1465 } 1466 } 1467 1468 private void broadcastScoConnectionState(int state) { 1469 if (state != mScoConnectionState) { 1470 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED); 1471 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 1472 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_PREVIOUS_STATE, 1473 mScoConnectionState); 1474 mContext.sendStickyBroadcast(newIntent); 1475 mScoConnectionState = state; 1476 } 1477 } 1478 1479 private BluetoothProfile.ServiceListener mBluetoothProfileServiceListener = 1480 new BluetoothProfile.ServiceListener() { 1481 public void onServiceConnected(int profile, BluetoothProfile proxy) { 1482 synchronized (mScoClients) { 1483 // Discard timeout message 1484 mAudioHandler.removeMessages(MSG_BT_HEADSET_CNCT_FAILED); 1485 mBluetoothHeadset = (BluetoothHeadset) proxy; 1486 List<BluetoothDevice> deviceList = mBluetoothHeadset.getConnectedDevices(); 1487 if (deviceList.size() > 0) { 1488 mBluetoothHeadsetDevice = deviceList.get(0); 1489 } else { 1490 mBluetoothHeadsetDevice = null; 1491 } 1492 // Refresh SCO audio state 1493 checkScoAudioState(); 1494 // Continue pending action if any 1495 if (mScoAudioState == SCO_STATE_ACTIVATE_REQ || 1496 mScoAudioState == SCO_STATE_DEACTIVATE_REQ || 1497 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1498 boolean status = false; 1499 if (mBluetoothHeadsetDevice != null) { 1500 switch (mScoAudioState) { 1501 case SCO_STATE_ACTIVATE_REQ: 1502 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1503 status = mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1504 mBluetoothHeadsetDevice); 1505 break; 1506 case SCO_STATE_DEACTIVATE_REQ: 1507 status = mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1508 mBluetoothHeadsetDevice); 1509 break; 1510 case SCO_STATE_DEACTIVATE_EXT_REQ: 1511 status = mBluetoothHeadset.stopVoiceRecognition( 1512 mBluetoothHeadsetDevice); 1513 } 1514 } 1515 if (!status) { 1516 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 0, 1517 SENDMSG_REPLACE, 0, 0, null, 0); 1518 } 1519 } 1520 } 1521 } 1522 public void onServiceDisconnected(int profile) { 1523 synchronized (mScoClients) { 1524 mBluetoothHeadset = null; 1525 } 1526 } 1527 }; 1528 1529 /////////////////////////////////////////////////////////////////////////// 1530 // Internal methods 1531 /////////////////////////////////////////////////////////////////////////// 1532 1533 /** 1534 * Checks if the adjustment should change ringer mode instead of just 1535 * adjusting volume. If so, this will set the proper ringer mode and volume 1536 * indices on the stream states. 1537 */ 1538 private boolean checkForRingerModeChange(int oldIndex, int direction) { 1539 boolean adjustVolumeIndex = true; 1540 int newRingerMode = mRingerMode; 1541 1542 if (mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 1543 // audible mode, at the bottom of the scale 1544 if ((direction == AudioManager.ADJUST_LOWER && 1545 mPrevVolDirection != AudioManager.ADJUST_LOWER) && 1546 ((oldIndex + 5) / 10 == 0)) { 1547 // "silent mode", but which one? 1548 newRingerMode = System.getInt(mContentResolver, System.VIBRATE_IN_SILENT, 1) == 1 1549 ? AudioManager.RINGER_MODE_VIBRATE 1550 : AudioManager.RINGER_MODE_SILENT; 1551 } 1552 } else { 1553 if (direction == AudioManager.ADJUST_RAISE) { 1554 // exiting silent mode 1555 newRingerMode = AudioManager.RINGER_MODE_NORMAL; 1556 } else { 1557 // prevent last audible index to reach 0 1558 adjustVolumeIndex = false; 1559 } 1560 } 1561 1562 if (newRingerMode != mRingerMode) { 1563 setRingerMode(newRingerMode); 1564 1565 /* 1566 * If we are changing ringer modes, do not increment/decrement the 1567 * volume index. Instead, the handler for the message above will 1568 * take care of changing the index. 1569 */ 1570 adjustVolumeIndex = false; 1571 } 1572 1573 mPrevVolDirection = direction; 1574 1575 return adjustVolumeIndex; 1576 } 1577 1578 public boolean isStreamAffectedByRingerMode(int streamType) { 1579 return (mRingerModeAffectedStreams & (1 << streamType)) != 0; 1580 } 1581 1582 private boolean isStreamMutedByRingerMode(int streamType) { 1583 return (mRingerModeMutedStreams & (1 << streamType)) != 0; 1584 } 1585 1586 public boolean isStreamAffectedByMute(int streamType) { 1587 return (mMuteAffectedStreams & (1 << streamType)) != 0; 1588 } 1589 1590 private void ensureValidDirection(int direction) { 1591 if (direction < AudioManager.ADJUST_LOWER || direction > AudioManager.ADJUST_RAISE) { 1592 throw new IllegalArgumentException("Bad direction " + direction); 1593 } 1594 } 1595 1596 private void ensureValidStreamType(int streamType) { 1597 if (streamType < 0 || streamType >= mStreamStates.length) { 1598 throw new IllegalArgumentException("Bad stream type " + streamType); 1599 } 1600 } 1601 1602 private int getActiveStreamType(int suggestedStreamType) { 1603 1604 if (mVoiceCapable) { 1605 boolean isOffhook = false; 1606 try { 1607 ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); 1608 if (phone != null) isOffhook = phone.isOffhook(); 1609 } catch (RemoteException e) { 1610 Log.w(TAG, "Couldn't connect to phone service", e); 1611 } 1612 1613 if (isOffhook || getMode() == AudioManager.MODE_IN_COMMUNICATION) { 1614 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 1615 == AudioSystem.FORCE_BT_SCO) { 1616 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 1617 return AudioSystem.STREAM_BLUETOOTH_SCO; 1618 } else { 1619 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 1620 return AudioSystem.STREAM_VOICE_CALL; 1621 } 1622 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0)) { 1623 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC..."); 1624 return AudioSystem.STREAM_MUSIC; 1625 } else if (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) { 1626 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_RING..." 1627 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 1628 return AudioSystem.STREAM_RING; 1629 } else { 1630 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 1631 return suggestedStreamType; 1632 } 1633 } else { 1634 if (getMode() == AudioManager.MODE_IN_COMMUNICATION) { 1635 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 1636 == AudioSystem.FORCE_BT_SCO) { 1637 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 1638 return AudioSystem.STREAM_BLUETOOTH_SCO; 1639 } else { 1640 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 1641 return AudioSystem.STREAM_VOICE_CALL; 1642 } 1643 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_NOTIFICATION, 1644 NOTIFICATION_VOLUME_DELAY_MS) || 1645 AudioSystem.isStreamActive(AudioSystem.STREAM_RING, 1646 NOTIFICATION_VOLUME_DELAY_MS)) { 1647 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_NOTIFICATION..."); 1648 return AudioSystem.STREAM_NOTIFICATION; 1649 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0) || 1650 (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE)) { 1651 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC " 1652 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 1653 return AudioSystem.STREAM_MUSIC; 1654 } else { 1655 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 1656 return suggestedStreamType; 1657 } 1658 } 1659 } 1660 1661 private void broadcastRingerMode() { 1662 // Send sticky broadcast 1663 Intent broadcast = new Intent(AudioManager.RINGER_MODE_CHANGED_ACTION); 1664 broadcast.putExtra(AudioManager.EXTRA_RINGER_MODE, mRingerMode); 1665 broadcast.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT 1666 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 1667 long origCallerIdentityToken = Binder.clearCallingIdentity(); 1668 mContext.sendStickyBroadcast(broadcast); 1669 Binder.restoreCallingIdentity(origCallerIdentityToken); 1670 } 1671 1672 private void broadcastVibrateSetting(int vibrateType) { 1673 // Send broadcast 1674 if (ActivityManagerNative.isSystemReady()) { 1675 Intent broadcast = new Intent(AudioManager.VIBRATE_SETTING_CHANGED_ACTION); 1676 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_TYPE, vibrateType); 1677 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_SETTING, getVibrateSetting(vibrateType)); 1678 mContext.sendBroadcast(broadcast); 1679 } 1680 } 1681 1682 // Message helper methods 1683 private static int getMsg(int baseMsg, int streamType) { 1684 return (baseMsg & 0xffff) | streamType << 16; 1685 } 1686 1687 private static int getMsgBase(int msg) { 1688 return msg & 0xffff; 1689 } 1690 1691 private static void sendMsg(Handler handler, int baseMsg, int streamType, 1692 int existingMsgPolicy, int arg1, int arg2, Object obj, int delay) { 1693 int msg = (streamType == SHARED_MSG) ? baseMsg : getMsg(baseMsg, streamType); 1694 1695 if (existingMsgPolicy == SENDMSG_REPLACE) { 1696 handler.removeMessages(msg); 1697 } else if (existingMsgPolicy == SENDMSG_NOOP && handler.hasMessages(msg)) { 1698 return; 1699 } 1700 1701 handler 1702 .sendMessageDelayed(handler.obtainMessage(msg, arg1, arg2, obj), delay); 1703 } 1704 1705 boolean checkAudioSettingsPermission(String method) { 1706 if (mContext.checkCallingOrSelfPermission("android.permission.MODIFY_AUDIO_SETTINGS") 1707 == PackageManager.PERMISSION_GRANTED) { 1708 return true; 1709 } 1710 String msg = "Audio Settings Permission Denial: " + method + " from pid=" 1711 + Binder.getCallingPid() 1712 + ", uid=" + Binder.getCallingUid(); 1713 Log.w(TAG, msg); 1714 return false; 1715 } 1716 1717 1718 /////////////////////////////////////////////////////////////////////////// 1719 // Inner classes 1720 /////////////////////////////////////////////////////////////////////////// 1721 1722 public class VolumeStreamState { 1723 private final int mStreamType; 1724 1725 private String mVolumeIndexSettingName; 1726 private String mLastAudibleVolumeIndexSettingName; 1727 private int mIndexMax; 1728 private int mIndex; 1729 private int mLastAudibleIndex; 1730 private ArrayList<VolumeDeathHandler> mDeathHandlers; //handles mute/solo requests client death 1731 1732 private VolumeStreamState(String settingName, int streamType) { 1733 1734 setVolumeIndexSettingName(settingName); 1735 1736 mStreamType = streamType; 1737 1738 final ContentResolver cr = mContentResolver; 1739 mIndexMax = MAX_STREAM_VOLUME[streamType]; 1740 mIndex = Settings.System.getInt(cr, 1741 mVolumeIndexSettingName, 1742 AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1743 mLastAudibleIndex = Settings.System.getInt(cr, 1744 mLastAudibleVolumeIndexSettingName, 1745 (mIndex > 0) ? mIndex : AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1746 AudioSystem.initStreamVolume(streamType, 0, mIndexMax); 1747 mIndexMax *= 10; 1748 mIndex = getValidIndex(10 * mIndex); 1749 mLastAudibleIndex = getValidIndex(10 * mLastAudibleIndex); 1750 setStreamVolumeIndex(streamType, mIndex); 1751 mDeathHandlers = new ArrayList<VolumeDeathHandler>(); 1752 } 1753 1754 public void setVolumeIndexSettingName(String settingName) { 1755 mVolumeIndexSettingName = settingName; 1756 mLastAudibleVolumeIndexSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 1757 } 1758 1759 public boolean adjustIndex(int deltaIndex) { 1760 return setIndex(mIndex + deltaIndex * 10, true); 1761 } 1762 1763 public boolean setIndex(int index, boolean lastAudible) { 1764 int oldIndex = mIndex; 1765 mIndex = getValidIndex(index); 1766 1767 if (oldIndex != mIndex) { 1768 if (lastAudible) { 1769 mLastAudibleIndex = mIndex; 1770 } 1771 // Apply change to all streams using this one as alias 1772 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1773 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 1774 if (streamType != mStreamType && STREAM_VOLUME_ALIAS[streamType] == mStreamType) { 1775 mStreamStates[streamType].setIndex(rescaleIndex(mIndex, mStreamType, streamType), lastAudible); 1776 } 1777 } 1778 return true; 1779 } else { 1780 return false; 1781 } 1782 } 1783 1784 public void setLastAudibleIndex(int index) { 1785 mLastAudibleIndex = getValidIndex(index); 1786 } 1787 1788 public void adjustLastAudibleIndex(int deltaIndex) { 1789 setLastAudibleIndex(mLastAudibleIndex + deltaIndex * 10); 1790 } 1791 1792 public int getMaxIndex() { 1793 return mIndexMax; 1794 } 1795 1796 public void mute(IBinder cb, boolean state) { 1797 VolumeDeathHandler handler = getDeathHandler(cb, state); 1798 if (handler == null) { 1799 Log.e(TAG, "Could not get client death handler for stream: "+mStreamType); 1800 return; 1801 } 1802 handler.mute(state); 1803 } 1804 1805 private int getValidIndex(int index) { 1806 if (index < 0) { 1807 return 0; 1808 } else if (index > mIndexMax) { 1809 return mIndexMax; 1810 } 1811 1812 return index; 1813 } 1814 1815 private class VolumeDeathHandler implements IBinder.DeathRecipient { 1816 private IBinder mICallback; // To be notified of client's death 1817 private int mMuteCount; // Number of active mutes for this client 1818 1819 VolumeDeathHandler(IBinder cb) { 1820 mICallback = cb; 1821 } 1822 1823 public void mute(boolean state) { 1824 synchronized(mDeathHandlers) { 1825 if (state) { 1826 if (mMuteCount == 0) { 1827 // Register for client death notification 1828 try { 1829 // mICallback can be 0 if muted by AudioService 1830 if (mICallback != null) { 1831 mICallback.linkToDeath(this, 0); 1832 } 1833 mDeathHandlers.add(this); 1834 // If the stream is not yet muted by any client, set lvel to 0 1835 if (muteCount() == 0) { 1836 setIndex(0, false); 1837 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, mStreamType, SENDMSG_NOOP, 0, 0, 1838 VolumeStreamState.this, 0); 1839 } 1840 } catch (RemoteException e) { 1841 // Client has died! 1842 binderDied(); 1843 mDeathHandlers.notify(); 1844 return; 1845 } 1846 } else { 1847 Log.w(TAG, "stream: "+mStreamType+" was already muted by this client"); 1848 } 1849 mMuteCount++; 1850 } else { 1851 if (mMuteCount == 0) { 1852 Log.e(TAG, "unexpected unmute for stream: "+mStreamType); 1853 } else { 1854 mMuteCount--; 1855 if (mMuteCount == 0) { 1856 // Unregistr from client death notification 1857 mDeathHandlers.remove(this); 1858 // mICallback can be 0 if muted by AudioService 1859 if (mICallback != null) { 1860 mICallback.unlinkToDeath(this, 0); 1861 } 1862 if (muteCount() == 0) { 1863 // If the stream is not muted any more, restore it's volume if 1864 // ringer mode allows it 1865 if (!isStreamAffectedByRingerMode(mStreamType) || mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 1866 setIndex(mLastAudibleIndex, false); 1867 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, mStreamType, SENDMSG_NOOP, 0, 0, 1868 VolumeStreamState.this, 0); 1869 } 1870 } 1871 } 1872 } 1873 } 1874 mDeathHandlers.notify(); 1875 } 1876 } 1877 1878 public void binderDied() { 1879 Log.w(TAG, "Volume service client died for stream: "+mStreamType); 1880 if (mMuteCount != 0) { 1881 // Reset all active mute requests from this client. 1882 mMuteCount = 1; 1883 mute(false); 1884 } 1885 } 1886 } 1887 1888 private int muteCount() { 1889 int count = 0; 1890 int size = mDeathHandlers.size(); 1891 for (int i = 0; i < size; i++) { 1892 count += mDeathHandlers.get(i).mMuteCount; 1893 } 1894 return count; 1895 } 1896 1897 private VolumeDeathHandler getDeathHandler(IBinder cb, boolean state) { 1898 synchronized(mDeathHandlers) { 1899 VolumeDeathHandler handler; 1900 int size = mDeathHandlers.size(); 1901 for (int i = 0; i < size; i++) { 1902 handler = mDeathHandlers.get(i); 1903 if (cb == handler.mICallback) { 1904 return handler; 1905 } 1906 } 1907 // If this is the first mute request for this client, create a new 1908 // client death handler. Otherwise, it is an out of sequence unmute request. 1909 if (state) { 1910 handler = new VolumeDeathHandler(cb); 1911 } else { 1912 Log.w(TAG, "stream was not muted by this client"); 1913 handler = null; 1914 } 1915 return handler; 1916 } 1917 } 1918 } 1919 1920 /** Thread that handles native AudioSystem control. */ 1921 private class AudioSystemThread extends Thread { 1922 AudioSystemThread() { 1923 super("AudioService"); 1924 } 1925 1926 @Override 1927 public void run() { 1928 // Set this thread up so the handler will work on it 1929 Looper.prepare(); 1930 1931 synchronized(AudioService.this) { 1932 mAudioHandler = new AudioHandler(); 1933 1934 // Notify that the handler has been created 1935 AudioService.this.notify(); 1936 } 1937 1938 // Listen for volume change requests that are set by VolumePanel 1939 Looper.loop(); 1940 } 1941 } 1942 1943 /** Handles internal volume messages in separate volume thread. */ 1944 private class AudioHandler extends Handler { 1945 1946 private void setSystemVolume(VolumeStreamState streamState) { 1947 1948 // Adjust volume 1949 setStreamVolumeIndex(streamState.mStreamType, streamState.mIndex); 1950 1951 // Apply change to all streams using this one as alias 1952 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1953 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 1954 if (streamType != streamState.mStreamType && 1955 STREAM_VOLUME_ALIAS[streamType] == streamState.mStreamType) { 1956 setStreamVolumeIndex(streamType, mStreamStates[streamType].mIndex); 1957 } 1958 } 1959 1960 // Post a persist volume msg 1961 sendMsg(mAudioHandler, MSG_PERSIST_VOLUME, streamState.mStreamType, 1962 SENDMSG_REPLACE, 1, 1, streamState, PERSIST_DELAY); 1963 } 1964 1965 private void persistVolume(VolumeStreamState streamState, boolean current, boolean lastAudible) { 1966 if (current) { 1967 System.putInt(mContentResolver, streamState.mVolumeIndexSettingName, 1968 (streamState.mIndex + 5)/ 10); 1969 } 1970 if (lastAudible) { 1971 System.putInt(mContentResolver, streamState.mLastAudibleVolumeIndexSettingName, 1972 (streamState.mLastAudibleIndex + 5) / 10); 1973 } 1974 } 1975 1976 private void persistRingerMode() { 1977 System.putInt(mContentResolver, System.MODE_RINGER, mRingerMode); 1978 } 1979 1980 private void persistVibrateSetting() { 1981 System.putInt(mContentResolver, System.VIBRATE_ON, mVibrateSetting); 1982 } 1983 1984 private void playSoundEffect(int effectType, int volume) { 1985 synchronized (mSoundEffectsLock) { 1986 if (mSoundPool == null) { 1987 return; 1988 } 1989 float volFloat; 1990 // use default if volume is not specified by caller 1991 if (volume < 0) { 1992 volFloat = (float)Math.pow(10, SOUND_EFFECT_VOLUME_DB/20); 1993 } else { 1994 volFloat = (float) volume / 1000.0f; 1995 } 1996 1997 if (SOUND_EFFECT_FILES_MAP[effectType][1] > 0) { 1998 mSoundPool.play(SOUND_EFFECT_FILES_MAP[effectType][1], volFloat, volFloat, 0, 0, 1.0f); 1999 } else { 2000 MediaPlayer mediaPlayer = new MediaPlayer(); 2001 if (mediaPlayer != null) { 2002 try { 2003 String filePath = Environment.getRootDirectory() + SOUND_EFFECTS_PATH + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effectType][0]]; 2004 mediaPlayer.setDataSource(filePath); 2005 mediaPlayer.setAudioStreamType(AudioSystem.STREAM_SYSTEM); 2006 mediaPlayer.prepare(); 2007 mediaPlayer.setVolume(volFloat, volFloat); 2008 mediaPlayer.setOnCompletionListener(new OnCompletionListener() { 2009 public void onCompletion(MediaPlayer mp) { 2010 cleanupPlayer(mp); 2011 } 2012 }); 2013 mediaPlayer.setOnErrorListener(new OnErrorListener() { 2014 public boolean onError(MediaPlayer mp, int what, int extra) { 2015 cleanupPlayer(mp); 2016 return true; 2017 } 2018 }); 2019 mediaPlayer.start(); 2020 } catch (IOException ex) { 2021 Log.w(TAG, "MediaPlayer IOException: "+ex); 2022 } catch (IllegalArgumentException ex) { 2023 Log.w(TAG, "MediaPlayer IllegalArgumentException: "+ex); 2024 } catch (IllegalStateException ex) { 2025 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2026 } 2027 } 2028 } 2029 } 2030 } 2031 2032 private void persistMediaButtonReceiver(ComponentName receiver) { 2033 Settings.System.putString(mContentResolver, Settings.System.MEDIA_BUTTON_RECEIVER, 2034 receiver == null ? "" : receiver.flattenToString()); 2035 } 2036 2037 private void cleanupPlayer(MediaPlayer mp) { 2038 if (mp != null) { 2039 try { 2040 mp.stop(); 2041 mp.release(); 2042 } catch (IllegalStateException ex) { 2043 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2044 } 2045 } 2046 } 2047 2048 private void setForceUse(int usage, int config) { 2049 AudioSystem.setForceUse(usage, config); 2050 } 2051 2052 @Override 2053 public void handleMessage(Message msg) { 2054 int baseMsgWhat = getMsgBase(msg.what); 2055 2056 switch (baseMsgWhat) { 2057 2058 case MSG_SET_SYSTEM_VOLUME: 2059 setSystemVolume((VolumeStreamState) msg.obj); 2060 break; 2061 2062 case MSG_PERSIST_VOLUME: 2063 persistVolume((VolumeStreamState) msg.obj, (msg.arg1 != 0), (msg.arg2 != 0)); 2064 break; 2065 2066 case MSG_PERSIST_RINGER_MODE: 2067 persistRingerMode(); 2068 break; 2069 2070 case MSG_PERSIST_VIBRATE_SETTING: 2071 persistVibrateSetting(); 2072 break; 2073 2074 case MSG_MEDIA_SERVER_DIED: 2075 if (!mMediaServerOk) { 2076 Log.e(TAG, "Media server died."); 2077 // Force creation of new IAudioFlinger interface so that we are notified 2078 // when new media_server process is back to life. 2079 AudioSystem.setErrorCallback(mAudioSystemCallback); 2080 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SHARED_MSG, SENDMSG_NOOP, 0, 0, 2081 null, 500); 2082 } 2083 break; 2084 2085 case MSG_MEDIA_SERVER_STARTED: 2086 Log.e(TAG, "Media server started."); 2087 // indicate to audio HAL that we start the reconfiguration phase after a media 2088 // server crash 2089 // Note that MSG_MEDIA_SERVER_STARTED message is only received when the media server 2090 // process restarts after a crash, not the first time it is started. 2091 AudioSystem.setParameters("restarting=true"); 2092 2093 // Restore device connection states 2094 Set set = mConnectedDevices.entrySet(); 2095 Iterator i = set.iterator(); 2096 while(i.hasNext()){ 2097 Map.Entry device = (Map.Entry)i.next(); 2098 AudioSystem.setDeviceConnectionState(((Integer)device.getKey()).intValue(), 2099 AudioSystem.DEVICE_STATE_AVAILABLE, 2100 (String)device.getValue()); 2101 } 2102 2103 // Restore call state 2104 AudioSystem.setPhoneState(mMode); 2105 2106 // Restore forced usage for communcations and record 2107 AudioSystem.setForceUse(AudioSystem.FOR_COMMUNICATION, mForcedUseForComm); 2108 AudioSystem.setForceUse(AudioSystem.FOR_RECORD, mForcedUseForComm); 2109 2110 // Restore stream volumes 2111 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2112 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2113 int index; 2114 VolumeStreamState streamState = mStreamStates[streamType]; 2115 AudioSystem.initStreamVolume(streamType, 0, (streamState.mIndexMax + 5) / 10); 2116 if (streamState.muteCount() == 0) { 2117 index = streamState.mIndex; 2118 } else { 2119 index = 0; 2120 } 2121 setStreamVolumeIndex(streamType, index); 2122 } 2123 2124 // Restore ringer mode 2125 setRingerModeInt(getRingerMode(), false); 2126 2127 // indicate the end of reconfiguration phase to audio HAL 2128 AudioSystem.setParameters("restarting=false"); 2129 break; 2130 2131 case MSG_LOAD_SOUND_EFFECTS: 2132 loadSoundEffects(); 2133 break; 2134 2135 case MSG_PLAY_SOUND_EFFECT: 2136 playSoundEffect(msg.arg1, msg.arg2); 2137 break; 2138 2139 case MSG_BTA2DP_DOCK_TIMEOUT: 2140 // msg.obj == address of BTA2DP device 2141 makeA2dpDeviceUnavailableNow( (String) msg.obj ); 2142 break; 2143 2144 case MSG_SET_FORCE_USE: 2145 setForceUse(msg.arg1, msg.arg2); 2146 break; 2147 2148 case MSG_PERSIST_MEDIABUTTONRECEIVER: 2149 persistMediaButtonReceiver( (ComponentName) msg.obj ); 2150 break; 2151 2152 case MSG_RCDISPLAY_CLEAR: 2153 Log.i(TAG, "Clear remote control display"); 2154 Intent clearIntent = new Intent(AudioManager.REMOTE_CONTROL_CLIENT_CHANGED); 2155 // no extra means no IRemoteControlClient, which is a request to clear 2156 clearIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2157 mContext.sendBroadcast(clearIntent); 2158 break; 2159 2160 case MSG_RCDISPLAY_UPDATE: 2161 synchronized(mCurrentRcLock) { 2162 if (mCurrentRcClientRef.get() == null) { 2163 // the remote control display owner has changed between the 2164 // the message to update the display was sent, and the time it 2165 // gets to be processed (now) 2166 } else { 2167 mCurrentRcClientGen++; 2168 Log.i(TAG, "Display/update remote control "); 2169 Intent rcClientIntent = new Intent( 2170 AudioManager.REMOTE_CONTROL_CLIENT_CHANGED); 2171 rcClientIntent.putExtra(AudioManager.EXTRA_REMOTE_CONTROL_CLIENT, 2172 mCurrentRcClientGen); 2173 rcClientIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2174 mContext.sendBroadcast(rcClientIntent); 2175 } 2176 } 2177 break; 2178 2179 case MSG_BT_HEADSET_CNCT_FAILED: 2180 resetBluetoothSco(); 2181 break; 2182 } 2183 } 2184 } 2185 2186 private class SettingsObserver extends ContentObserver { 2187 2188 SettingsObserver() { 2189 super(new Handler()); 2190 mContentResolver.registerContentObserver(Settings.System.getUriFor( 2191 Settings.System.MODE_RINGER_STREAMS_AFFECTED), false, this); 2192 } 2193 2194 @Override 2195 public void onChange(boolean selfChange) { 2196 super.onChange(selfChange); 2197 synchronized (mSettingsLock) { 2198 int ringerModeAffectedStreams = Settings.System.getInt(mContentResolver, 2199 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 2200 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 2201 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 2202 if (mVoiceCapable) { 2203 ringerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 2204 } else { 2205 ringerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 2206 } 2207 if (ringerModeAffectedStreams != mRingerModeAffectedStreams) { 2208 /* 2209 * Ensure all stream types that should be affected by ringer mode 2210 * are in the proper state. 2211 */ 2212 mRingerModeAffectedStreams = ringerModeAffectedStreams; 2213 setRingerModeInt(getRingerMode(), false); 2214 } 2215 } 2216 } 2217 } 2218 2219 private void makeA2dpDeviceAvailable(String address) { 2220 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2221 AudioSystem.DEVICE_STATE_AVAILABLE, 2222 address); 2223 // Reset A2DP suspend state each time a new sink is connected 2224 AudioSystem.setParameters("A2dpSuspended=false"); 2225 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP), 2226 address); 2227 } 2228 2229 private void makeA2dpDeviceUnavailableNow(String address) { 2230 Intent noisyIntent = new Intent(AudioManager.ACTION_AUDIO_BECOMING_NOISY); 2231 mContext.sendBroadcast(noisyIntent); 2232 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2233 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2234 address); 2235 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 2236 } 2237 2238 private void makeA2dpDeviceUnavailableLater(String address) { 2239 // prevent any activity on the A2DP audio output to avoid unwanted 2240 // reconnection of the sink. 2241 AudioSystem.setParameters("A2dpSuspended=true"); 2242 // the device will be made unavailable later, so consider it disconnected right away 2243 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 2244 // send the delayed message to make the device unavailable later 2245 Message msg = mAudioHandler.obtainMessage(MSG_BTA2DP_DOCK_TIMEOUT, address); 2246 mAudioHandler.sendMessageDelayed(msg, BTA2DP_DOCK_TIMEOUT_MILLIS); 2247 2248 } 2249 2250 private void cancelA2dpDeviceTimeout() { 2251 mAudioHandler.removeMessages(MSG_BTA2DP_DOCK_TIMEOUT); 2252 } 2253 2254 private boolean hasScheduledA2dpDockTimeout() { 2255 return mAudioHandler.hasMessages(MSG_BTA2DP_DOCK_TIMEOUT); 2256 } 2257 2258 /* cache of the address of the last dock the device was connected to */ 2259 private String mDockAddress; 2260 2261 /** 2262 * Receiver for misc intent broadcasts the Phone app cares about. 2263 */ 2264 private class AudioServiceBroadcastReceiver extends BroadcastReceiver { 2265 @Override 2266 public void onReceive(Context context, Intent intent) { 2267 String action = intent.getAction(); 2268 2269 if (action.equals(Intent.ACTION_DOCK_EVENT)) { 2270 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 2271 Intent.EXTRA_DOCK_STATE_UNDOCKED); 2272 int config; 2273 switch (dockState) { 2274 case Intent.EXTRA_DOCK_STATE_DESK: 2275 config = AudioSystem.FORCE_BT_DESK_DOCK; 2276 break; 2277 case Intent.EXTRA_DOCK_STATE_CAR: 2278 config = AudioSystem.FORCE_BT_CAR_DOCK; 2279 break; 2280 case Intent.EXTRA_DOCK_STATE_LE_DESK: 2281 config = AudioSystem.FORCE_ANALOG_DOCK; 2282 break; 2283 case Intent.EXTRA_DOCK_STATE_HE_DESK: 2284 config = AudioSystem.FORCE_DIGITAL_DOCK; 2285 break; 2286 case Intent.EXTRA_DOCK_STATE_UNDOCKED: 2287 default: 2288 config = AudioSystem.FORCE_NONE; 2289 } 2290 AudioSystem.setForceUse(AudioSystem.FOR_DOCK, config); 2291 } else if (action.equals(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED)) { 2292 int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 2293 BluetoothProfile.STATE_DISCONNECTED); 2294 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 2295 String address = btDevice.getAddress(); 2296 boolean isConnected = 2297 (mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP) && 2298 mConnectedDevices.get(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP).equals(address)); 2299 2300 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 2301 if (btDevice.isBluetoothDock()) { 2302 if (state == BluetoothProfile.STATE_DISCONNECTED) { 2303 // introduction of a delay for transient disconnections of docks when 2304 // power is rapidly turned off/on, this message will be canceled if 2305 // we reconnect the dock under a preset delay 2306 makeA2dpDeviceUnavailableLater(address); 2307 // the next time isConnected is evaluated, it will be false for the dock 2308 } 2309 } else { 2310 makeA2dpDeviceUnavailableNow(address); 2311 } 2312 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 2313 if (btDevice.isBluetoothDock()) { 2314 // this could be a reconnection after a transient disconnection 2315 cancelA2dpDeviceTimeout(); 2316 mDockAddress = address; 2317 } else { 2318 // this could be a connection of another A2DP device before the timeout of 2319 // a dock: cancel the dock timeout, and make the dock unavailable now 2320 if(hasScheduledA2dpDockTimeout()) { 2321 cancelA2dpDeviceTimeout(); 2322 makeA2dpDeviceUnavailableNow(mDockAddress); 2323 } 2324 } 2325 makeA2dpDeviceAvailable(address); 2326 } 2327 } else if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) { 2328 int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 2329 BluetoothProfile.STATE_DISCONNECTED); 2330 int device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO; 2331 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 2332 String address = null; 2333 if (btDevice != null) { 2334 address = btDevice.getAddress(); 2335 BluetoothClass btClass = btDevice.getBluetoothClass(); 2336 if (btClass != null) { 2337 switch (btClass.getDeviceClass()) { 2338 case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET: 2339 case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE: 2340 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 2341 break; 2342 case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO: 2343 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 2344 break; 2345 } 2346 } 2347 } 2348 2349 boolean isConnected = (mConnectedDevices.containsKey(device) && 2350 mConnectedDevices.get(device).equals(address)); 2351 2352 synchronized (mScoClients) { 2353 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 2354 AudioSystem.setDeviceConnectionState(device, 2355 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2356 address); 2357 mConnectedDevices.remove(device); 2358 mBluetoothHeadsetDevice = null; 2359 resetBluetoothSco(); 2360 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 2361 AudioSystem.setDeviceConnectionState(device, 2362 AudioSystem.DEVICE_STATE_AVAILABLE, 2363 address); 2364 mConnectedDevices.put(new Integer(device), address); 2365 mBluetoothHeadsetDevice = btDevice; 2366 } 2367 } 2368 } else if (action.equals(Intent.ACTION_HEADSET_PLUG)) { 2369 int state = intent.getIntExtra("state", 0); 2370 int microphone = intent.getIntExtra("microphone", 0); 2371 2372 if (microphone != 0) { 2373 boolean isConnected = 2374 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_WIRED_HEADSET); 2375 if (state == 0 && isConnected) { 2376 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADSET, 2377 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2378 ""); 2379 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_WIRED_HEADSET); 2380 } else if (state == 1 && !isConnected) { 2381 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADSET, 2382 AudioSystem.DEVICE_STATE_AVAILABLE, 2383 ""); 2384 mConnectedDevices.put( 2385 new Integer(AudioSystem.DEVICE_OUT_WIRED_HEADSET), ""); 2386 } 2387 } else { 2388 boolean isConnected = 2389 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE); 2390 if (state == 0 && isConnected) { 2391 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE, 2392 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2393 ""); 2394 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE); 2395 } else if (state == 1 && !isConnected) { 2396 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE, 2397 AudioSystem.DEVICE_STATE_AVAILABLE, 2398 ""); 2399 mConnectedDevices.put( 2400 new Integer(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE), ""); 2401 } 2402 } 2403 } else if (action.equals(Intent.ACTION_USB_ANLG_HEADSET_PLUG)) { 2404 int state = intent.getIntExtra("state", 0); 2405 Log.v(TAG, "Broadcast Receiver: Got ACTION_USB_ANLG_HEADSET_PLUG, state = "+state); 2406 boolean isConnected = 2407 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET); 2408 if (state == 0 && isConnected) { 2409 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET, 2410 AudioSystem.DEVICE_STATE_UNAVAILABLE, ""); 2411 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET); 2412 } else if (state == 1 && !isConnected) { 2413 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET, 2414 AudioSystem.DEVICE_STATE_AVAILABLE, ""); 2415 mConnectedDevices.put( 2416 new Integer(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET), ""); 2417 } 2418 } else if (action.equals(Intent.ACTION_HDMI_AUDIO_PLUG)) { 2419 int state = intent.getIntExtra("state", 0); 2420 Log.v(TAG, "Broadcast Receiver: Got ACTION_HDMI_AUDIO_PLUG, state = "+state); 2421 boolean isConnected = 2422 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_AUX_DIGITAL); 2423 if (state == 0 && isConnected) { 2424 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_AUX_DIGITAL, 2425 AudioSystem.DEVICE_STATE_UNAVAILABLE, ""); 2426 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_AUX_DIGITAL); 2427 } else if (state == 1 && !isConnected) { 2428 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_AUX_DIGITAL, 2429 AudioSystem.DEVICE_STATE_AVAILABLE, ""); 2430 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_AUX_DIGITAL), ""); 2431 } 2432 } else if (action.equals(Intent.ACTION_USB_DGTL_HEADSET_PLUG)) { 2433 int state = intent.getIntExtra("state", 0); 2434 Log.v(TAG, "Broadcast Receiver: Got ACTION_USB_DGTL_HEADSET_PLUG, state = "+state); 2435 boolean isConnected = 2436 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET); 2437 if (state == 0 && isConnected) { 2438 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET, 2439 AudioSystem.DEVICE_STATE_UNAVAILABLE, ""); 2440 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET); 2441 } else if (state == 1 && !isConnected) { 2442 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET, 2443 AudioSystem.DEVICE_STATE_AVAILABLE, ""); 2444 mConnectedDevices.put( 2445 new Integer(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET), ""); 2446 } 2447 } else if (action.equals(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED)) { 2448 boolean broadcast = false; 2449 int state = AudioManager.SCO_AUDIO_STATE_ERROR; 2450 synchronized (mScoClients) { 2451 int btState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1); 2452 // broadcast intent if the connection was initated by AudioService 2453 if (!mScoClients.isEmpty() && 2454 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 2455 mScoAudioState == SCO_STATE_ACTIVATE_REQ || 2456 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 2457 broadcast = true; 2458 } 2459 switch (btState) { 2460 case BluetoothHeadset.STATE_AUDIO_CONNECTED: 2461 state = AudioManager.SCO_AUDIO_STATE_CONNECTED; 2462 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 2463 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 2464 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 2465 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 2466 } 2467 break; 2468 case BluetoothHeadset.STATE_AUDIO_DISCONNECTED: 2469 state = AudioManager.SCO_AUDIO_STATE_DISCONNECTED; 2470 mScoAudioState = SCO_STATE_INACTIVE; 2471 clearAllScoClients(null, false); 2472 break; 2473 case BluetoothHeadset.STATE_AUDIO_CONNECTING: 2474 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 2475 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 2476 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 2477 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 2478 } 2479 default: 2480 // do not broadcast CONNECTING or invalid state 2481 broadcast = false; 2482 break; 2483 } 2484 } 2485 if (broadcast) { 2486 broadcastScoConnectionState(state); 2487 //FIXME: this is to maintain compatibility with deprecated intent 2488 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 2489 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 2490 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 2491 mContext.sendStickyBroadcast(newIntent); 2492 } 2493 } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) { 2494 mBootCompleted = true; 2495 sendMsg(mAudioHandler, MSG_LOAD_SOUND_EFFECTS, SHARED_MSG, SENDMSG_NOOP, 2496 0, 0, null, 0); 2497 2498 mScoConnectionState = AudioManager.SCO_AUDIO_STATE_ERROR; 2499 resetBluetoothSco(); 2500 getBluetoothHeadset(); 2501 //FIXME: this is to maintain compatibility with deprecated intent 2502 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 2503 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 2504 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, 2505 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 2506 mContext.sendStickyBroadcast(newIntent); 2507 } else if (action.equals(Intent.ACTION_PACKAGE_REMOVED)) { 2508 if (!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 2509 // a package is being removed, not replaced 2510 String packageName = intent.getData().getSchemeSpecificPart(); 2511 if (packageName != null) { 2512 removeMediaButtonReceiverForPackage(packageName); 2513 } 2514 } 2515 } 2516 } 2517 } 2518 2519 //========================================================================================== 2520 // AudioFocus 2521 //========================================================================================== 2522 2523 /* constant to identify focus stack entry that is used to hold the focus while the phone 2524 * is ringing or during a call 2525 */ 2526 private final static String IN_VOICE_COMM_FOCUS_ID = "AudioFocus_For_Phone_Ring_And_Calls"; 2527 2528 private final static Object mAudioFocusLock = new Object(); 2529 2530 private final static Object mRingingLock = new Object(); 2531 2532 private PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 2533 @Override 2534 public void onCallStateChanged(int state, String incomingNumber) { 2535 if (state == TelephonyManager.CALL_STATE_RINGING) { 2536 //Log.v(TAG, " CALL_STATE_RINGING"); 2537 synchronized(mRingingLock) { 2538 mIsRinging = true; 2539 } 2540 } else if ((state == TelephonyManager.CALL_STATE_OFFHOOK) 2541 || (state == TelephonyManager.CALL_STATE_IDLE)) { 2542 synchronized(mRingingLock) { 2543 mIsRinging = false; 2544 } 2545 } 2546 } 2547 }; 2548 2549 private void notifyTopOfAudioFocusStack() { 2550 // notify the top of the stack it gained focus 2551 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 2552 if (canReassignAudioFocus()) { 2553 try { 2554 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 2555 AudioManager.AUDIOFOCUS_GAIN, mFocusStack.peek().mClientId); 2556 } catch (RemoteException e) { 2557 Log.e(TAG, "Failure to signal gain of audio control focus due to "+ e); 2558 e.printStackTrace(); 2559 } 2560 } 2561 } 2562 } 2563 2564 private static class FocusStackEntry { 2565 public int mStreamType = -1;// no stream type 2566 public IAudioFocusDispatcher mFocusDispatcher = null; 2567 public IBinder mSourceRef = null; 2568 public String mClientId; 2569 public int mFocusChangeType; 2570 public String mPackageName; 2571 public int mCallingUid; 2572 2573 public FocusStackEntry() { 2574 } 2575 2576 public FocusStackEntry(int streamType, int duration, 2577 IAudioFocusDispatcher afl, IBinder source, String id, String pn, int uid) { 2578 mStreamType = streamType; 2579 mFocusDispatcher = afl; 2580 mSourceRef = source; 2581 mClientId = id; 2582 mFocusChangeType = duration; 2583 mPackageName = pn; 2584 mCallingUid = uid; 2585 } 2586 } 2587 2588 private Stack<FocusStackEntry> mFocusStack = new Stack<FocusStackEntry>(); 2589 2590 /** 2591 * Helper function: 2592 * Display in the log the current entries in the audio focus stack 2593 */ 2594 private void dumpFocusStack(PrintWriter pw) { 2595 pw.println("\nAudio Focus stack entries:"); 2596 synchronized(mAudioFocusLock) { 2597 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2598 while(stackIterator.hasNext()) { 2599 FocusStackEntry fse = stackIterator.next(); 2600 pw.println(" source:" + fse.mSourceRef + " -- client: " + fse.mClientId 2601 + " -- duration: " + fse.mFocusChangeType 2602 + " -- uid: " + fse.mCallingUid); 2603 } 2604 } 2605 } 2606 2607 /** 2608 * Helper function: 2609 * Called synchronized on mAudioFocusLock 2610 * Remove a focus listener from the focus stack. 2611 * @param focusListenerToRemove the focus listener 2612 * @param signal if true and the listener was at the top of the focus stack, i.e. it was holding 2613 * focus, notify the next item in the stack it gained focus. 2614 */ 2615 private void removeFocusStackEntry(String clientToRemove, boolean signal) { 2616 // is the current top of the focus stack abandoning focus? (because of death or request) 2617 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientToRemove)) 2618 { 2619 //Log.i(TAG, " removeFocusStackEntry() removing top of stack"); 2620 mFocusStack.pop(); 2621 if (signal) { 2622 // notify the new top of the stack it gained focus 2623 notifyTopOfAudioFocusStack(); 2624 // there's a new top of the stack, let the remote control know 2625 synchronized(mRCStack) { 2626 checkUpdateRemoteControlDisplay(); 2627 } 2628 } 2629 } else { 2630 // focus is abandoned by a client that's not at the top of the stack, 2631 // no need to update focus. 2632 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2633 while(stackIterator.hasNext()) { 2634 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 2635 if(fse.mClientId.equals(clientToRemove)) { 2636 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 2637 + fse.mClientId); 2638 stackIterator.remove(); 2639 } 2640 } 2641 } 2642 } 2643 2644 /** 2645 * Helper function: 2646 * Called synchronized on mAudioFocusLock 2647 * Remove focus listeners from the focus stack for a particular client. 2648 */ 2649 private void removeFocusStackEntryForClient(IBinder cb) { 2650 // is the owner of the audio focus part of the client to remove? 2651 boolean isTopOfStackForClientToRemove = !mFocusStack.isEmpty() && 2652 mFocusStack.peek().mSourceRef.equals(cb); 2653 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2654 while(stackIterator.hasNext()) { 2655 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 2656 if(fse.mSourceRef.equals(cb)) { 2657 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 2658 + fse.mClientId); 2659 stackIterator.remove(); 2660 } 2661 } 2662 if (isTopOfStackForClientToRemove) { 2663 // we removed an entry at the top of the stack: 2664 // notify the new top of the stack it gained focus. 2665 notifyTopOfAudioFocusStack(); 2666 // there's a new top of the stack, let the remote control know 2667 synchronized(mRCStack) { 2668 checkUpdateRemoteControlDisplay(); 2669 } 2670 } 2671 } 2672 2673 /** 2674 * Helper function: 2675 * Returns true if the system is in a state where the focus can be reevaluated, false otherwise. 2676 */ 2677 private boolean canReassignAudioFocus() { 2678 // focus requests are rejected during a phone call or when the phone is ringing 2679 // this is equivalent to IN_VOICE_COMM_FOCUS_ID having the focus 2680 if (!mFocusStack.isEmpty() && IN_VOICE_COMM_FOCUS_ID.equals(mFocusStack.peek().mClientId)) { 2681 return false; 2682 } 2683 return true; 2684 } 2685 2686 /** 2687 * Inner class to monitor audio focus client deaths, and remove them from the audio focus 2688 * stack if necessary. 2689 */ 2690 private class AudioFocusDeathHandler implements IBinder.DeathRecipient { 2691 private IBinder mCb; // To be notified of client's death 2692 2693 AudioFocusDeathHandler(IBinder cb) { 2694 mCb = cb; 2695 } 2696 2697 public void binderDied() { 2698 synchronized(mAudioFocusLock) { 2699 Log.w(TAG, " AudioFocus audio focus client died"); 2700 removeFocusStackEntryForClient(mCb); 2701 } 2702 } 2703 2704 public IBinder getBinder() { 2705 return mCb; 2706 } 2707 } 2708 2709 2710 /** @see AudioManager#requestAudioFocus(IAudioFocusDispatcher, int, int) */ 2711 public int requestAudioFocus(int mainStreamType, int focusChangeHint, IBinder cb, 2712 IAudioFocusDispatcher fd, String clientId, String callingPackageName) { 2713 Log.i(TAG, " AudioFocus requestAudioFocus() from " + clientId); 2714 // the main stream type for the audio focus request is currently not used. It may 2715 // potentially be used to handle multiple stream type-dependent audio focuses. 2716 2717 // we need a valid binder callback for clients 2718 if (!cb.pingBinder()) { 2719 Log.e(TAG, " AudioFocus DOA client for requestAudioFocus(), aborting."); 2720 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2721 } 2722 2723 synchronized(mAudioFocusLock) { 2724 if (!canReassignAudioFocus()) { 2725 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2726 } 2727 2728 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientId)) { 2729 // if focus is already owned by this client and the reason for acquiring the focus 2730 // hasn't changed, don't do anything 2731 if (mFocusStack.peek().mFocusChangeType == focusChangeHint) { 2732 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2733 } 2734 // the reason for the audio focus request has changed: remove the current top of 2735 // stack and respond as if we had a new focus owner 2736 mFocusStack.pop(); 2737 } 2738 2739 // notify current top of stack it is losing focus 2740 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 2741 try { 2742 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 2743 -1 * focusChangeHint, // loss and gain codes are inverse of each other 2744 mFocusStack.peek().mClientId); 2745 } catch (RemoteException e) { 2746 Log.e(TAG, " Failure to signal loss of focus due to "+ e); 2747 e.printStackTrace(); 2748 } 2749 } 2750 2751 // focus requester might already be somewhere below in the stack, remove it 2752 removeFocusStackEntry(clientId, false); 2753 2754 // push focus requester at the top of the audio focus stack 2755 mFocusStack.push(new FocusStackEntry(mainStreamType, focusChangeHint, fd, cb, 2756 clientId, callingPackageName, Binder.getCallingUid())); 2757 2758 // there's a new top of the stack, let the remote control know 2759 synchronized(mRCStack) { 2760 checkUpdateRemoteControlDisplay(); 2761 } 2762 }//synchronized(mAudioFocusLock) 2763 2764 // handle the potential premature death of the new holder of the focus 2765 // (premature death == death before abandoning focus) 2766 // Register for client death notification 2767 AudioFocusDeathHandler afdh = new AudioFocusDeathHandler(cb); 2768 try { 2769 cb.linkToDeath(afdh, 0); 2770 } catch (RemoteException e) { 2771 // client has already died! 2772 Log.w(TAG, "AudioFocus requestAudioFocus() could not link to "+cb+" binder death"); 2773 } 2774 2775 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2776 } 2777 2778 /** @see AudioManager#abandonAudioFocus(IAudioFocusDispatcher) */ 2779 public int abandonAudioFocus(IAudioFocusDispatcher fl, String clientId) { 2780 Log.i(TAG, " AudioFocus abandonAudioFocus() from " + clientId); 2781 try { 2782 // this will take care of notifying the new focus owner if needed 2783 synchronized(mAudioFocusLock) { 2784 removeFocusStackEntry(clientId, true); 2785 } 2786 } catch (java.util.ConcurrentModificationException cme) { 2787 // Catching this exception here is temporary. It is here just to prevent 2788 // a crash seen when the "Silent" notification is played. This is believed to be fixed 2789 // but this try catch block is left just to be safe. 2790 Log.e(TAG, "FATAL EXCEPTION AudioFocus abandonAudioFocus() caused " + cme); 2791 cme.printStackTrace(); 2792 } 2793 2794 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2795 } 2796 2797 2798 public void unregisterAudioFocusClient(String clientId) { 2799 synchronized(mAudioFocusLock) { 2800 removeFocusStackEntry(clientId, false); 2801 } 2802 } 2803 2804 2805 //========================================================================================== 2806 // RemoteControl 2807 //========================================================================================== 2808 /** 2809 * Receiver for media button intents. Handles the dispatching of the media button event 2810 * to one of the registered listeners, or if there was none, resumes the intent broadcast 2811 * to the rest of the system. 2812 */ 2813 private class MediaButtonBroadcastReceiver extends BroadcastReceiver { 2814 @Override 2815 public void onReceive(Context context, Intent intent) { 2816 String action = intent.getAction(); 2817 if (!Intent.ACTION_MEDIA_BUTTON.equals(action)) { 2818 return; 2819 } 2820 KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT); 2821 if (event != null) { 2822 // if in a call or ringing, do not break the current phone app behavior 2823 // TODO modify this to let the phone app specifically get the RC focus 2824 // add modify the phone app to take advantage of the new API 2825 synchronized(mRingingLock) { 2826 if (mIsRinging || (getMode() == AudioSystem.MODE_IN_CALL) || 2827 (getMode() == AudioSystem.MODE_IN_COMMUNICATION) || 2828 (getMode() == AudioSystem.MODE_RINGTONE) ) { 2829 return; 2830 } 2831 } 2832 synchronized(mRCStack) { 2833 if (!mRCStack.empty()) { 2834 // create a new intent specifically aimed at the current registered listener 2835 Intent targetedIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); 2836 targetedIntent.putExtras(intent.getExtras()); 2837 targetedIntent.setComponent(mRCStack.peek().mReceiverComponent); 2838 // trap the current broadcast 2839 abortBroadcast(); 2840 //Log.v(TAG, " Sending intent" + targetedIntent); 2841 context.sendBroadcast(targetedIntent, null); 2842 } 2843 } 2844 } 2845 } 2846 } 2847 2848 private final Object mCurrentRcLock = new Object(); 2849 /** 2850 * The one remote control client to be polled for display information. 2851 * This object is never null, but its reference might. 2852 * Access protected by mCurrentRcLock. 2853 */ 2854 private SoftReference<IRemoteControlClient> mCurrentRcClientRef = 2855 new SoftReference<IRemoteControlClient>(null); 2856 2857 private final static int RC_INFO_NONE = 0; 2858 private final static int RC_INFO_ALL = 2859 AudioManager.RemoteControlParameters.FLAG_INFORMATION_CHANGED_ALBUM_ART | 2860 AudioManager.RemoteControlParameters.FLAG_INFORMATION_CHANGED_KEY_MEDIA | 2861 AudioManager.RemoteControlParameters.FLAG_INFORMATION_CHANGED_METADATA | 2862 AudioManager.RemoteControlParameters.FLAG_INFORMATION_CHANGED_PLAYSTATE; 2863 2864 /** 2865 * The flags indicating what type of information changed since the last time it was queried. 2866 * Access protected by mCurrentRcLock. 2867 */ 2868 private int mCurrentRcClientInfoFlags = RC_INFO_ALL; 2869 2870 /** 2871 * A monotonically increasing generation counter for mCurrentRcClientRef. 2872 * Only accessed with a lock on mCurrentRcLock. 2873 */ 2874 private int mCurrentRcClientGen = 0; 2875 2876 /** 2877 * Returns the current remote control client. 2878 * @param rcClientId the counter value that matches the extra 2879 * {@link AudioManager#EXTRA_REMOTE_CONTROL_CLIENT} in the 2880 * {@link AudioManager#REMOTE_CONTROL_CLIENT_CHANGED} event 2881 * @return the current IRemoteControlClient from which information to display on the remote 2882 * control can be retrieved, or null if rcClientId doesn't match the current generation 2883 * counter. 2884 */ 2885 public IRemoteControlClient getRemoteControlClient(int rcClientId) { 2886 synchronized(mCurrentRcLock) { 2887 if (rcClientId == mCurrentRcClientGen) { 2888 return mCurrentRcClientRef.get(); 2889 } else { 2890 return null; 2891 } 2892 } 2893 } 2894 2895 /** 2896 * Returns the current flags of information that changed on the current remote control client. 2897 * Requesting this information clears it. 2898 * @param rcClientId the counter value that matches the extra 2899 * {@link AudioManager#EXTRA_REMOTE_CONTROL_CLIENT} in the 2900 * {@link AudioManager#REMOTE_CONTROL_CLIENT_CHANGED} event 2901 * @return the flags indicating which type of information changed since the client notified 2902 * that its information had changed. 2903 */ 2904 public int getRemoteControlClientInformationChangedFlags(int rcClientId) { 2905 synchronized(mCurrentRcLock) { 2906 if (rcClientId == mCurrentRcClientGen) { 2907 int flags = mCurrentRcClientInfoFlags; 2908 mCurrentRcClientInfoFlags = RC_INFO_NONE; 2909 return flags; 2910 } else { 2911 return RC_INFO_NONE; 2912 } 2913 } 2914 } 2915 2916 /** 2917 * Inner class to monitor remote control client deaths, and remove the client for the 2918 * remote control stack if necessary. 2919 */ 2920 private class RcClientDeathHandler implements IBinder.DeathRecipient { 2921 private IBinder mCb; // To be notified of client's death 2922 private ComponentName mRcEventReceiver; 2923 2924 RcClientDeathHandler(IBinder cb, ComponentName eventReceiver) { 2925 mCb = cb; 2926 mRcEventReceiver = eventReceiver; 2927 } 2928 2929 public void binderDied() { 2930 Log.w(TAG, " RemoteControlClient died"); 2931 // remote control client died, make sure the displays don't use it anymore 2932 // by setting its remote control client to null 2933 registerRemoteControlClient(mRcEventReceiver, null, null/*ignored*/); 2934 } 2935 2936 public IBinder getBinder() { 2937 return mCb; 2938 } 2939 } 2940 2941 private static class RemoteControlStackEntry { 2942 /** the target for the ACTION_MEDIA_BUTTON events */ 2943 public ComponentName mReceiverComponent;// always non null 2944 public String mCallingPackageName; 2945 public int mCallingUid; 2946 2947 /** provides access to the information to display on the remote control */ 2948 public SoftReference<IRemoteControlClient> mRcClientRef; 2949 public RcClientDeathHandler mRcClientDeathHandler; 2950 2951 public RemoteControlStackEntry(ComponentName r) { 2952 mReceiverComponent = r; 2953 mCallingUid = -1; 2954 mRcClientRef = new SoftReference<IRemoteControlClient>(null); 2955 } 2956 2957 public void unlinkToRcClientDeath() { 2958 if ((mRcClientDeathHandler != null) && (mRcClientDeathHandler.mCb != null)) { 2959 try { 2960 mRcClientDeathHandler.mCb.unlinkToDeath(mRcClientDeathHandler, 0); 2961 } catch (java.util.NoSuchElementException e) { 2962 // not much we can do here 2963 Log.e(TAG, "Encountered " + e + " in unlinkToRcClientDeath()"); 2964 e.printStackTrace(); 2965 } 2966 } 2967 } 2968 } 2969 2970 /** 2971 * The stack of remote control event receivers. 2972 * Code sections and methods that modify the remote control event receiver stack are 2973 * synchronized on mRCStack, but also BEFORE on mFocusLock as any change in either 2974 * stack, audio focus or RC, can lead to a change in the remote control display 2975 */ 2976 private Stack<RemoteControlStackEntry> mRCStack = new Stack<RemoteControlStackEntry>(); 2977 2978 /** 2979 * Helper function: 2980 * Display in the log the current entries in the remote control focus stack 2981 */ 2982 private void dumpRCStack(PrintWriter pw) { 2983 pw.println("\nRemote Control stack entries:"); 2984 synchronized(mRCStack) { 2985 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 2986 while(stackIterator.hasNext()) { 2987 RemoteControlStackEntry rcse = stackIterator.next(); 2988 pw.println(" receiver: " + rcse.mReceiverComponent + 2989 " -- client: " + rcse.mRcClientRef.get() + 2990 " -- uid: " + rcse.mCallingUid); 2991 } 2992 } 2993 } 2994 2995 /** 2996 * Helper function: 2997 * Remove any entry in the remote control stack that has the same package name as packageName 2998 * Pre-condition: packageName != null 2999 */ 3000 private void removeMediaButtonReceiverForPackage(String packageName) { 3001 synchronized(mRCStack) { 3002 if (mRCStack.empty()) { 3003 return; 3004 } else { 3005 RemoteControlStackEntry oldTop = mRCStack.peek(); 3006 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3007 // iterate over the stack entries 3008 while(stackIterator.hasNext()) { 3009 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 3010 if (packageName.equalsIgnoreCase(rcse.mReceiverComponent.getPackageName())) { 3011 // a stack entry is from the package being removed, remove it from the stack 3012 stackIterator.remove(); 3013 } 3014 } 3015 if (mRCStack.empty()) { 3016 // no saved media button receiver 3017 mAudioHandler.sendMessage( 3018 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 3019 null)); 3020 return; 3021 } else if (oldTop != mRCStack.peek()) { 3022 // the top of the stack has changed, save it in the system settings 3023 // by posting a message to persist it 3024 mAudioHandler.sendMessage( 3025 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 3026 mRCStack.peek().mReceiverComponent)); 3027 } 3028 } 3029 } 3030 } 3031 3032 /** 3033 * Helper function: 3034 * Restore remote control receiver from the system settings 3035 */ 3036 private void restoreMediaButtonReceiver() { 3037 String receiverName = Settings.System.getString(mContentResolver, 3038 Settings.System.MEDIA_BUTTON_RECEIVER); 3039 if ((null != receiverName) && !receiverName.isEmpty()) { 3040 ComponentName receiverComponentName = ComponentName.unflattenFromString(receiverName); 3041 registerMediaButtonEventReceiver(receiverComponentName); 3042 } 3043 // upon restoring (e.g. after boot), do we want to refresh all remotes? 3044 } 3045 3046 /** 3047 * Helper function: 3048 * Set the new remote control receiver at the top of the RC focus stack 3049 */ 3050 private void pushMediaButtonReceiver(ComponentName newReceiver) { 3051 // already at top of stack? 3052 if (!mRCStack.empty() && mRCStack.peek().mReceiverComponent.equals(newReceiver)) { 3053 return; 3054 } 3055 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3056 RemoteControlStackEntry rcse = null; 3057 boolean wasInsideStack = false; 3058 while(stackIterator.hasNext()) { 3059 rcse = (RemoteControlStackEntry)stackIterator.next(); 3060 if(rcse.mReceiverComponent.equals(newReceiver)) { 3061 wasInsideStack = true; 3062 stackIterator.remove(); 3063 break; 3064 } 3065 } 3066 if (!wasInsideStack) { 3067 rcse = new RemoteControlStackEntry(newReceiver); 3068 } 3069 mRCStack.push(rcse); 3070 3071 // post message to persist the default media button receiver 3072 mAudioHandler.sendMessage( mAudioHandler.obtainMessage( 3073 MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, newReceiver/*obj*/) ); 3074 } 3075 3076 /** 3077 * Helper function: 3078 * Remove the remote control receiver from the RC focus stack 3079 */ 3080 private void removeMediaButtonReceiver(ComponentName newReceiver) { 3081 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3082 while(stackIterator.hasNext()) { 3083 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 3084 if(rcse.mReceiverComponent.equals(newReceiver)) { 3085 stackIterator.remove(); 3086 break; 3087 } 3088 } 3089 } 3090 3091 /** 3092 * Helper function: 3093 * Called synchronized on mRCStack 3094 */ 3095 private boolean isCurrentRcController(ComponentName eventReceiver) { 3096 if (!mRCStack.empty() && mRCStack.peek().mReceiverComponent.equals(eventReceiver)) { 3097 return true; 3098 } 3099 return false; 3100 } 3101 3102 /** 3103 * Helper function: 3104 * Called synchronized on mRCStack 3105 */ 3106 private void clearRemoteControlDisplay() { 3107 synchronized(mCurrentRcLock) { 3108 mCurrentRcClientRef.clear(); 3109 mCurrentRcClientInfoFlags = RC_INFO_NONE; 3110 } 3111 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_CLEAR) ); 3112 } 3113 3114 /** 3115 * Helper function: 3116 * Called synchronized on mRCStack 3117 * mRCStack.empty() is false 3118 */ 3119 private void updateRemoteControlDisplay() { 3120 RemoteControlStackEntry rcse = mRCStack.peek(); 3121 // this is where we enforce opt-in for information display on the remote controls 3122 // with the new AudioManager.registerRemoteControlClient() API 3123 if (rcse.mRcClientRef.get() == null) { 3124 // FIXME remove log before release: this warning will be displayed for every AF change 3125 Log.w(TAG, "Can't update remote control display with null remote control client"); 3126 clearRemoteControlDisplay(); 3127 return; 3128 } 3129 synchronized(mCurrentRcLock) { 3130 if (!rcse.mRcClientRef.get().equals(mCurrentRcClientRef.get())) { 3131 // new RC client, assume every type of information shall be queried 3132 mCurrentRcClientInfoFlags = RC_INFO_ALL; 3133 } 3134 mCurrentRcClientRef = rcse.mRcClientRef; 3135 } 3136 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_UPDATE, 0, 0, rcse) ); 3137 } 3138 3139 /** 3140 * Helper function: 3141 * Called synchronized on mFocusLock, then mRCStack 3142 * Check whether the remote control display should be updated, triggers the update if required 3143 */ 3144 private void checkUpdateRemoteControlDisplay() { 3145 // determine whether the remote control display should be refreshed 3146 // if either stack is empty, there is a mismatch, so clear the RC display 3147 if (mRCStack.isEmpty() || mFocusStack.isEmpty()) { 3148 clearRemoteControlDisplay(); 3149 return; 3150 } 3151 // if the top of the two stacks belong to different packages, there is a mismatch, clear 3152 if ((mRCStack.peek().mCallingPackageName != null) 3153 && (mFocusStack.peek().mPackageName != null) 3154 && !(mRCStack.peek().mCallingPackageName.compareTo( 3155 mFocusStack.peek().mPackageName) == 0)) { 3156 clearRemoteControlDisplay(); 3157 return; 3158 } 3159 // if the audio focus didn't originate from the same Uid as the one in which the remote 3160 // control information will be retrieved, clear 3161 if (mRCStack.peek().mCallingUid != mFocusStack.peek().mCallingUid) { 3162 clearRemoteControlDisplay(); 3163 return; 3164 } 3165 // refresh conditions were verified: update the remote controls 3166 updateRemoteControlDisplay(); 3167 } 3168 3169 /** see AudioManager.registerMediaButtonEventReceiver(ComponentName eventReceiver) */ 3170 public void registerMediaButtonEventReceiver(ComponentName eventReceiver) { 3171 Log.i(TAG, " Remote Control registerMediaButtonEventReceiver() for " + eventReceiver); 3172 3173 synchronized(mAudioFocusLock) { 3174 synchronized(mRCStack) { 3175 pushMediaButtonReceiver(eventReceiver); 3176 checkUpdateRemoteControlDisplay(); 3177 } 3178 } 3179 } 3180 3181 /** see AudioManager.unregisterMediaButtonEventReceiver(ComponentName eventReceiver) */ 3182 public void unregisterMediaButtonEventReceiver(ComponentName eventReceiver) { 3183 Log.i(TAG, " Remote Control unregisterMediaButtonEventReceiver() for " + eventReceiver); 3184 3185 synchronized(mAudioFocusLock) { 3186 synchronized(mRCStack) { 3187 boolean topOfStackWillChange = isCurrentRcController(eventReceiver); 3188 removeMediaButtonReceiver(eventReceiver); 3189 if (topOfStackWillChange) { 3190 checkUpdateRemoteControlDisplay(); 3191 } 3192 } 3193 } 3194 } 3195 3196 /** see AudioManager.registerRemoteControlClient(ComponentName eventReceiver, ...) */ 3197 public void registerRemoteControlClient(ComponentName eventReceiver, 3198 IRemoteControlClient rcClient, String callingPackageName) { 3199 synchronized(mAudioFocusLock) { 3200 synchronized(mRCStack) { 3201 // store the new display information 3202 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3203 while(stackIterator.hasNext()) { 3204 RemoteControlStackEntry rcse = stackIterator.next(); 3205 if(rcse.mReceiverComponent.equals(eventReceiver)) { 3206 // already had a remote control client? 3207 if (rcse.mRcClientDeathHandler != null) { 3208 // stop monitoring the old client's death 3209 rcse.unlinkToRcClientDeath(); 3210 } 3211 // save the new remote control client 3212 rcse.mRcClientRef = new SoftReference<IRemoteControlClient>(rcClient); 3213 rcse.mCallingPackageName = callingPackageName; 3214 rcse.mCallingUid = Binder.getCallingUid(); 3215 if (rcClient == null) { 3216 break; 3217 } 3218 // monitor the new client's death 3219 IBinder b = rcClient.asBinder(); 3220 RcClientDeathHandler rcdh = 3221 new RcClientDeathHandler(b, rcse.mReceiverComponent); 3222 try { 3223 b.linkToDeath(rcdh, 0); 3224 } catch (RemoteException e) { 3225 // remote control client is DOA, disqualify it 3226 Log.w(TAG, "registerRemoteControlClient() has a dead client " + b); 3227 rcse.mRcClientRef.clear(); 3228 } 3229 rcse.mRcClientDeathHandler = rcdh; 3230 break; 3231 } 3232 } 3233 // if the eventReceiver is at the top of the stack 3234 // then check for potential refresh of the remote controls 3235 if (isCurrentRcController(eventReceiver)) { 3236 checkUpdateRemoteControlDisplay(); 3237 } 3238 } 3239 } 3240 } 3241 3242 /** see AudioManager.notifyRemoteControlInformationChanged(ComponentName er, int infoFlag) */ 3243 public void notifyRemoteControlInformationChanged(ComponentName eventReceiver, int infoFlag) { 3244 synchronized(mAudioFocusLock) { 3245 synchronized(mRCStack) { 3246 // only refresh if the eventReceiver is at the top of the stack 3247 if (isCurrentRcController(eventReceiver)) { 3248 // there is a refresh request for the current event receiver: it might not be 3249 // displayed on the remote control display, but we can cache what new 3250 // information has changed. 3251 synchronized(mCurrentRcLock) { 3252 mCurrentRcClientInfoFlags |= infoFlag; 3253 } 3254 checkUpdateRemoteControlDisplay(); 3255 } 3256 } 3257 } 3258 } 3259 3260 @Override 3261 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3262 // TODO probably a lot more to do here than just the audio focus and remote control stacks 3263 dumpFocusStack(pw); 3264 dumpRCStack(pw); 3265 } 3266 3267 3268} 3269