AudioService.java revision de1f065be109e1c313d8330c8e34210fedaac74e
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.media; 18 19import static android.media.AudioManager.RINGER_MODE_NORMAL; 20import static android.media.AudioManager.RINGER_MODE_SILENT; 21import static android.media.AudioManager.RINGER_MODE_VIBRATE; 22 23import android.app.ActivityManagerNative; 24import android.app.KeyguardManager; 25import android.app.PendingIntent; 26import android.app.PendingIntent.CanceledException; 27import android.bluetooth.BluetoothA2dp; 28import android.bluetooth.BluetoothAdapter; 29import android.bluetooth.BluetoothClass; 30import android.bluetooth.BluetoothDevice; 31import android.bluetooth.BluetoothHeadset; 32import android.bluetooth.BluetoothProfile; 33import android.content.BroadcastReceiver; 34import android.content.ComponentName; 35import android.content.ContentResolver; 36import android.content.Context; 37import android.content.Intent; 38import android.content.IntentFilter; 39import android.content.pm.PackageManager; 40import android.database.ContentObserver; 41import android.media.MediaPlayer.OnCompletionListener; 42import android.media.MediaPlayer.OnErrorListener; 43import android.os.Binder; 44import android.os.Bundle; 45import android.os.Environment; 46import android.os.Handler; 47import android.os.IBinder; 48import android.os.Looper; 49import android.os.Message; 50import android.os.RemoteException; 51import android.os.ServiceManager; 52import android.os.SystemProperties; 53import android.provider.Settings; 54import android.provider.Settings.System; 55import android.telephony.PhoneStateListener; 56import android.telephony.TelephonyManager; 57import android.util.Log; 58import android.view.KeyEvent; 59import android.view.VolumePanel; 60 61import com.android.internal.telephony.ITelephony; 62 63import java.io.FileDescriptor; 64import java.io.IOException; 65import java.io.PrintWriter; 66import java.util.ArrayList; 67import java.util.HashMap; 68import java.util.Iterator; 69import java.util.List; 70import java.util.Map; 71import java.util.NoSuchElementException; 72import java.util.Set; 73import java.util.Stack; 74 75/** 76 * The implementation of the volume manager service. 77 * <p> 78 * This implementation focuses on delivering a responsive UI. Most methods are 79 * asynchronous to external calls. For example, the task of setting a volume 80 * will update our internal state, but in a separate thread will set the system 81 * volume and later persist to the database. Similarly, setting the ringer mode 82 * will update the state and broadcast a change and in a separate thread later 83 * persist the ringer mode. 84 * 85 * @hide 86 */ 87public class AudioService extends IAudioService.Stub { 88 89 private static final String TAG = "AudioService"; 90 91 /** Debug remote control client/display feature */ 92 protected static final boolean DEBUG_RC = false; 93 94 /** How long to delay before persisting a change in volume/ringer mode. */ 95 private static final int PERSIST_DELAY = 3000; 96 97 private Context mContext; 98 private ContentResolver mContentResolver; 99 private boolean mVoiceCapable; 100 101 /** The UI */ 102 private VolumePanel mVolumePanel; 103 104 // sendMsg() flags 105 /** Used when a message should be shared across all stream types. */ 106 private static final int SHARED_MSG = -1; 107 /** If the msg is already queued, replace it with this one. */ 108 private static final int SENDMSG_REPLACE = 0; 109 /** If the msg is already queued, ignore this one and leave the old. */ 110 private static final int SENDMSG_NOOP = 1; 111 /** If the msg is already queued, queue this one and leave the old. */ 112 private static final int SENDMSG_QUEUE = 2; 113 114 // AudioHandler message.whats 115 private static final int MSG_SET_SYSTEM_VOLUME = 0; 116 private static final int MSG_PERSIST_VOLUME = 1; 117 private static final int MSG_PERSIST_RINGER_MODE = 3; 118 private static final int MSG_PERSIST_VIBRATE_SETTING = 4; 119 private static final int MSG_MEDIA_SERVER_DIED = 5; 120 private static final int MSG_MEDIA_SERVER_STARTED = 6; 121 private static final int MSG_PLAY_SOUND_EFFECT = 7; 122 private static final int MSG_BTA2DP_DOCK_TIMEOUT = 8; 123 private static final int MSG_LOAD_SOUND_EFFECTS = 9; 124 private static final int MSG_SET_FORCE_USE = 10; 125 private static final int MSG_PERSIST_MEDIABUTTONRECEIVER = 11; 126 private static final int MSG_BT_HEADSET_CNCT_FAILED = 12; 127 private static final int MSG_RCDISPLAY_CLEAR = 13; 128 private static final int MSG_RCDISPLAY_UPDATE = 14; 129 130 private static final int BTA2DP_DOCK_TIMEOUT_MILLIS = 8000; 131 // Timeout for connection to bluetooth headset service 132 private static final int BT_HEADSET_CNCT_TIMEOUT_MS = 3000; 133 134 135 /** @see AudioSystemThread */ 136 private AudioSystemThread mAudioSystemThread; 137 /** @see AudioHandler */ 138 private AudioHandler mAudioHandler; 139 /** @see VolumeStreamState */ 140 private VolumeStreamState[] mStreamStates; 141 private SettingsObserver mSettingsObserver; 142 143 private int mMode; 144 private Object mSettingsLock = new Object(); 145 private boolean mMediaServerOk; 146 147 private SoundPool mSoundPool; 148 private Object mSoundEffectsLock = new Object(); 149 private static final int NUM_SOUNDPOOL_CHANNELS = 4; 150 private static final int SOUND_EFFECT_VOLUME = 1000; 151 152 /* Sound effect file names */ 153 private static final String SOUND_EFFECTS_PATH = "/media/audio/ui/"; 154 private static final String[] SOUND_EFFECT_FILES = new String[] { 155 "Effect_Tick.ogg", 156 "KeypressStandard.ogg", 157 "KeypressSpacebar.ogg", 158 "KeypressDelete.ogg", 159 "KeypressReturn.ogg" 160 }; 161 162 /* Sound effect file name mapping sound effect id (AudioManager.FX_xxx) to 163 * file index in SOUND_EFFECT_FILES[] (first column) and indicating if effect 164 * uses soundpool (second column) */ 165 private int[][] SOUND_EFFECT_FILES_MAP = new int[][] { 166 {0, -1}, // FX_KEY_CLICK 167 {0, -1}, // FX_FOCUS_NAVIGATION_UP 168 {0, -1}, // FX_FOCUS_NAVIGATION_DOWN 169 {0, -1}, // FX_FOCUS_NAVIGATION_LEFT 170 {0, -1}, // FX_FOCUS_NAVIGATION_RIGHT 171 {1, -1}, // FX_KEYPRESS_STANDARD 172 {2, -1}, // FX_KEYPRESS_SPACEBAR 173 {3, -1}, // FX_FOCUS_DELETE 174 {4, -1} // FX_FOCUS_RETURN 175 }; 176 177 /** @hide Maximum volume index values for audio streams */ 178 private int[] MAX_STREAM_VOLUME = new int[] { 179 5, // STREAM_VOICE_CALL 180 7, // STREAM_SYSTEM 181 7, // STREAM_RING 182 15, // STREAM_MUSIC 183 7, // STREAM_ALARM 184 7, // STREAM_NOTIFICATION 185 15, // STREAM_BLUETOOTH_SCO 186 7, // STREAM_SYSTEM_ENFORCED 187 15, // STREAM_DTMF 188 15 // STREAM_TTS 189 }; 190 /* STREAM_VOLUME_ALIAS[] indicates for each stream if it uses the volume settings 191 * of another stream: This avoids multiplying the volume settings for hidden 192 * stream types that follow other stream behavior for volume settings 193 * NOTE: do not create loops in aliases! */ 194 private int[] STREAM_VOLUME_ALIAS = new int[] { 195 AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL 196 AudioSystem.STREAM_SYSTEM, // STREAM_SYSTEM 197 AudioSystem.STREAM_RING, // STREAM_RING 198 AudioSystem.STREAM_MUSIC, // STREAM_MUSIC 199 AudioSystem.STREAM_ALARM, // STREAM_ALARM 200 AudioSystem.STREAM_RING, // STREAM_NOTIFICATION 201 AudioSystem.STREAM_BLUETOOTH_SCO, // STREAM_BLUETOOTH_SCO 202 AudioSystem.STREAM_SYSTEM, // STREAM_SYSTEM_ENFORCED 203 AudioSystem.STREAM_VOICE_CALL, // STREAM_DTMF 204 AudioSystem.STREAM_MUSIC // STREAM_TTS 205 }; 206 207 private AudioSystem.ErrorCallback mAudioSystemCallback = new AudioSystem.ErrorCallback() { 208 public void onError(int error) { 209 switch (error) { 210 case AudioSystem.AUDIO_STATUS_SERVER_DIED: 211 if (mMediaServerOk) { 212 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SHARED_MSG, SENDMSG_NOOP, 0, 0, 213 null, 1500); 214 mMediaServerOk = false; 215 } 216 break; 217 case AudioSystem.AUDIO_STATUS_OK: 218 if (!mMediaServerOk) { 219 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_STARTED, SHARED_MSG, SENDMSG_NOOP, 0, 0, 220 null, 0); 221 mMediaServerOk = true; 222 } 223 break; 224 default: 225 break; 226 } 227 } 228 }; 229 230 /** 231 * Current ringer mode from one of {@link AudioManager#RINGER_MODE_NORMAL}, 232 * {@link AudioManager#RINGER_MODE_SILENT}, or 233 * {@link AudioManager#RINGER_MODE_VIBRATE}. 234 */ 235 private int mRingerMode; 236 237 /** @see System#MODE_RINGER_STREAMS_AFFECTED */ 238 private int mRingerModeAffectedStreams; 239 240 // Streams currently muted by ringer mode 241 private int mRingerModeMutedStreams; 242 243 /** @see System#MUTE_STREAMS_AFFECTED */ 244 private int mMuteAffectedStreams; 245 246 /** 247 * Has multiple bits per vibrate type to indicate the type's vibrate 248 * setting. See {@link #setVibrateSetting(int, int)}. 249 * <p> 250 * NOTE: This is not the final decision of whether vibrate is on/off for the 251 * type since it depends on the ringer mode. See {@link #shouldVibrate(int)}. 252 */ 253 private int mVibrateSetting; 254 255 // Broadcast receiver for device connections intent broadcasts 256 private final BroadcastReceiver mReceiver = new AudioServiceBroadcastReceiver(); 257 258 // Broadcast receiver for media button broadcasts (separate from mReceiver to 259 // independently change its priority) 260 private final BroadcastReceiver mMediaButtonReceiver = new MediaButtonBroadcastReceiver(); 261 262 // Used to alter media button redirection when the phone is ringing. 263 private boolean mIsRinging = false; 264 265 // Devices currently connected 266 private HashMap <Integer, String> mConnectedDevices = new HashMap <Integer, String>(); 267 268 // Forced device usage for communications 269 private int mForcedUseForComm; 270 271 // List of binder death handlers for setMode() client processes. 272 // The last process to have called setMode() is at the top of the list. 273 private ArrayList <SetModeDeathHandler> mSetModeDeathHandlers = new ArrayList <SetModeDeathHandler>(); 274 275 // List of clients having issued a SCO start request 276 private ArrayList <ScoClient> mScoClients = new ArrayList <ScoClient>(); 277 278 // BluetoothHeadset API to control SCO connection 279 private BluetoothHeadset mBluetoothHeadset; 280 281 // Bluetooth headset device 282 private BluetoothDevice mBluetoothHeadsetDevice; 283 284 // Indicate if SCO audio connection is currently active and if the initiator is 285 // audio service (internal) or bluetooth headset (external) 286 private int mScoAudioState; 287 // SCO audio state is not active 288 private static final int SCO_STATE_INACTIVE = 0; 289 // SCO audio activation request waiting for headset service to connect 290 private static final int SCO_STATE_ACTIVATE_REQ = 1; 291 // SCO audio state is active or starting due to a local request to start a virtual call 292 private static final int SCO_STATE_ACTIVE_INTERNAL = 3; 293 // SCO audio deactivation request waiting for headset service to connect 294 private static final int SCO_STATE_DEACTIVATE_REQ = 5; 295 296 // SCO audio state is active due to an action in BT handsfree (either voice recognition or 297 // in call audio) 298 private static final int SCO_STATE_ACTIVE_EXTERNAL = 2; 299 // Deactivation request for all SCO connections (initiated by audio mode change) 300 // waiting for headset service to connect 301 private static final int SCO_STATE_DEACTIVATE_EXT_REQ = 4; 302 303 // Current connection state indicated by bluetooth headset 304 private int mScoConnectionState; 305 306 // true if boot sequence has been completed 307 private boolean mBootCompleted; 308 // listener for SoundPool sample load completion indication 309 private SoundPoolCallback mSoundPoolCallBack; 310 // thread for SoundPool listener 311 private SoundPoolListenerThread mSoundPoolListenerThread; 312 // message looper for SoundPool listener 313 private Looper mSoundPoolLooper = null; 314 // default volume applied to sound played with playSoundEffect() 315 private static final int SOUND_EFFECT_DEFAULT_VOLUME_DB = -20; 316 // volume applied to sound played with playSoundEffect() read from ro.config.sound_fx_volume 317 private int SOUND_EFFECT_VOLUME_DB; 318 // getActiveStreamType() will return STREAM_NOTIFICATION during this period after a notification 319 // stopped 320 private static final int NOTIFICATION_VOLUME_DELAY_MS = 5000; 321 // previous volume adjustment direction received by checkForRingerModeChange() 322 private int mPrevVolDirection = AudioManager.ADJUST_SAME; 323 // Keyguard manager proxy 324 private KeyguardManager mKeyguardManager; 325 326 /////////////////////////////////////////////////////////////////////////// 327 // Construction 328 /////////////////////////////////////////////////////////////////////////// 329 330 /** @hide */ 331 public AudioService(Context context) { 332 mContext = context; 333 mContentResolver = context.getContentResolver(); 334 mVoiceCapable = mContext.getResources().getBoolean( 335 com.android.internal.R.bool.config_voice_capable); 336 337 // Intialized volume 338 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL] = SystemProperties.getInt( 339 "ro.config.vc_call_vol_steps", 340 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL]); 341 342 SOUND_EFFECT_VOLUME_DB = SystemProperties.getInt( 343 "ro.config.sound_fx_volume", 344 SOUND_EFFECT_DEFAULT_VOLUME_DB); 345 346 mVolumePanel = new VolumePanel(context, this); 347 mForcedUseForComm = AudioSystem.FORCE_NONE; 348 createAudioSystemThread(); 349 readPersistedSettings(); 350 mSettingsObserver = new SettingsObserver(); 351 createStreamStates(); 352 353 mMode = AudioSystem.MODE_NORMAL; 354 mMediaServerOk = true; 355 356 // Call setRingerModeInt() to apply correct mute 357 // state on streams affected by ringer mode. 358 mRingerModeMutedStreams = 0; 359 setRingerModeInt(getRingerMode(), false); 360 361 AudioSystem.setErrorCallback(mAudioSystemCallback); 362 363 // Register for device connection intent broadcasts. 364 IntentFilter intentFilter = 365 new IntentFilter(Intent.ACTION_HEADSET_PLUG); 366 367 intentFilter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED); 368 intentFilter.addAction(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED); 369 intentFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); 370 intentFilter.addAction(Intent.ACTION_DOCK_EVENT); 371 intentFilter.addAction(Intent.ACTION_USB_ANLG_HEADSET_PLUG); 372 intentFilter.addAction(Intent.ACTION_USB_DGTL_HEADSET_PLUG); 373 intentFilter.addAction(Intent.ACTION_HDMI_AUDIO_PLUG); 374 intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED); 375 intentFilter.addAction(Intent.ACTION_SCREEN_ON); 376 intentFilter.addAction(Intent.ACTION_SCREEN_OFF); 377 context.registerReceiver(mReceiver, intentFilter); 378 379 // Register for package removal intent broadcasts for media button receiver persistence 380 IntentFilter pkgFilter = new IntentFilter(); 381 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 382 pkgFilter.addDataScheme("package"); 383 context.registerReceiver(mReceiver, pkgFilter); 384 385 // Register for media button intent broadcasts. 386 intentFilter = new IntentFilter(Intent.ACTION_MEDIA_BUTTON); 387 // Workaround for bug on priority setting 388 //intentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 389 intentFilter.setPriority(Integer.MAX_VALUE); 390 context.registerReceiver(mMediaButtonReceiver, intentFilter); 391 392 // Register for phone state monitoring 393 TelephonyManager tmgr = (TelephonyManager) 394 context.getSystemService(Context.TELEPHONY_SERVICE); 395 tmgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 396 } 397 398 private void createAudioSystemThread() { 399 mAudioSystemThread = new AudioSystemThread(); 400 mAudioSystemThread.start(); 401 waitForAudioHandlerCreation(); 402 } 403 404 /** Waits for the volume handler to be created by the other thread. */ 405 private void waitForAudioHandlerCreation() { 406 synchronized(this) { 407 while (mAudioHandler == null) { 408 try { 409 // Wait for mAudioHandler to be set by the other thread 410 wait(); 411 } catch (InterruptedException e) { 412 Log.e(TAG, "Interrupted while waiting on volume handler."); 413 } 414 } 415 } 416 } 417 418 private void createStreamStates() { 419 int numStreamTypes = AudioSystem.getNumStreamTypes(); 420 VolumeStreamState[] streams = mStreamStates = new VolumeStreamState[numStreamTypes]; 421 422 for (int i = 0; i < numStreamTypes; i++) { 423 streams[i] = new VolumeStreamState(System.VOLUME_SETTINGS[STREAM_VOLUME_ALIAS[i]], i); 424 } 425 426 // Correct stream index values for streams with aliases 427 for (int i = 0; i < numStreamTypes; i++) { 428 if (STREAM_VOLUME_ALIAS[i] != i) { 429 int index = rescaleIndex(streams[i].mIndex, STREAM_VOLUME_ALIAS[i], i); 430 streams[i].mIndex = streams[i].getValidIndex(index); 431 setStreamVolumeIndex(i, index); 432 index = rescaleIndex(streams[i].mLastAudibleIndex, STREAM_VOLUME_ALIAS[i], i); 433 streams[i].mLastAudibleIndex = streams[i].getValidIndex(index); 434 } 435 } 436 } 437 438 private void readPersistedSettings() { 439 final ContentResolver cr = mContentResolver; 440 441 mRingerMode = System.getInt(cr, System.MODE_RINGER, AudioManager.RINGER_MODE_NORMAL); 442 // sanity check in case the settings are restored from a device with incompatible 443 // ringer modes 444 if (!AudioManager.isValidRingerMode(mRingerMode)) { 445 mRingerMode = AudioManager.RINGER_MODE_NORMAL; 446 System.putInt(cr, System.MODE_RINGER, mRingerMode); 447 } 448 449 mVibrateSetting = System.getInt(cr, System.VIBRATE_ON, 0); 450 451 // make sure settings for ringer mode are consistent with device type: non voice capable 452 // devices (tablets) include media stream in silent mode whereas phones don't. 453 mRingerModeAffectedStreams = Settings.System.getInt(cr, 454 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 455 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 456 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 457 if (mVoiceCapable) { 458 mRingerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 459 } else { 460 mRingerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 461 } 462 Settings.System.putInt(cr, 463 Settings.System.MODE_RINGER_STREAMS_AFFECTED, mRingerModeAffectedStreams); 464 465 mMuteAffectedStreams = System.getInt(cr, 466 System.MUTE_STREAMS_AFFECTED, 467 ((1 << AudioSystem.STREAM_MUSIC)|(1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_SYSTEM))); 468 469 // Each stream will read its own persisted settings 470 471 // Broadcast the sticky intent 472 broadcastRingerMode(); 473 474 // Broadcast vibrate settings 475 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_RINGER); 476 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_NOTIFICATION); 477 478 // Restore the default media button receiver from the system settings 479 restoreMediaButtonReceiver(); 480 } 481 482 private void setStreamVolumeIndex(int stream, int index) { 483 AudioSystem.setStreamVolumeIndex(stream, (index + 5)/10); 484 } 485 486 private int rescaleIndex(int index, int srcStream, int dstStream) { 487 return (index * mStreamStates[dstStream].getMaxIndex() + mStreamStates[srcStream].getMaxIndex() / 2) / mStreamStates[srcStream].getMaxIndex(); 488 } 489 490 /////////////////////////////////////////////////////////////////////////// 491 // IPC methods 492 /////////////////////////////////////////////////////////////////////////// 493 494 /** @see AudioManager#adjustVolume(int, int) */ 495 public void adjustVolume(int direction, int flags) { 496 adjustSuggestedStreamVolume(direction, AudioManager.USE_DEFAULT_STREAM_TYPE, flags); 497 } 498 499 /** @see AudioManager#adjustVolume(int, int, int) */ 500 public void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags) { 501 502 int streamType; 503 if ((flags & AudioManager.FLAG_FORCE_STREAM) != 0) { 504 streamType = suggestedStreamType; 505 } else { 506 streamType = getActiveStreamType(suggestedStreamType); 507 } 508 509 // Play sounds on STREAM_RING only and if lock screen is not on. 510 if ((flags & AudioManager.FLAG_PLAY_SOUND) != 0 && 511 ((STREAM_VOLUME_ALIAS[streamType] != AudioSystem.STREAM_RING) || 512 (mKeyguardManager != null && mKeyguardManager.isKeyguardLocked()))) { 513 flags &= ~AudioManager.FLAG_PLAY_SOUND; 514 } 515 516 adjustStreamVolume(streamType, direction, flags); 517 } 518 519 /** @see AudioManager#adjustStreamVolume(int, int, int) */ 520 public void adjustStreamVolume(int streamType, int direction, int flags) { 521 ensureValidDirection(direction); 522 ensureValidStreamType(streamType); 523 524 // use stream type alias here so that streams with same alias have the same behavior, 525 // including with regard to silent mode control (e.g the use of STREAM_RING below and in 526 // checkForRingerModeChange() in place of STREAM_RING or STREAM_NOTIFICATION) 527 int streamTypeAlias = STREAM_VOLUME_ALIAS[streamType]; 528 VolumeStreamState streamState = mStreamStates[streamTypeAlias]; 529 final int oldIndex = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 530 boolean adjustVolume = true; 531 532 // If either the client forces allowing ringer modes for this adjustment, 533 // or the stream type is one that is affected by ringer modes 534 if (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 535 streamTypeAlias == AudioSystem.STREAM_RING || 536 (!mVoiceCapable && streamTypeAlias == AudioSystem.STREAM_MUSIC)) { 537 // do not vibrate if already in vibrate mode 538 if (mRingerMode == AudioManager.RINGER_MODE_VIBRATE) { 539 flags &= ~AudioManager.FLAG_VIBRATE; 540 } 541 // Check if the ringer mode changes with this volume adjustment. If 542 // it does, it will handle adjusting the volume, so we won't below 543 adjustVolume = checkForRingerModeChange(oldIndex, direction, streamTypeAlias); 544 } 545 546 // If stream is muted, adjust last audible index only 547 int index; 548 if (streamState.muteCount() != 0) { 549 if (adjustVolume) { 550 // adjust volume on all stream types sharing the same alias otherwise a query 551 // on last audible index for an alias would not give the correct value 552 int numStreamTypes = AudioSystem.getNumStreamTypes(); 553 for (int i = numStreamTypes - 1; i >= 0; i--) { 554 if (STREAM_VOLUME_ALIAS[i] == streamTypeAlias) { 555 VolumeStreamState s = mStreamStates[i]; 556 557 s.adjustLastAudibleIndex(direction); 558 // Post a persist volume msg 559 sendMsg(mAudioHandler, MSG_PERSIST_VOLUME, i, 560 SENDMSG_REPLACE, 0, 1, s, PERSIST_DELAY); 561 } 562 } 563 } 564 index = streamState.mLastAudibleIndex; 565 } else { 566 if (adjustVolume && streamState.adjustIndex(direction)) { 567 // Post message to set system volume (it in turn will post a message 568 // to persist). Do not change volume if stream is muted. 569 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, streamTypeAlias, SENDMSG_NOOP, 0, 0, 570 streamState, 0); 571 } 572 index = streamState.mIndex; 573 } 574 575 sendVolumeUpdate(streamType, oldIndex, index, flags); 576 } 577 578 /** @see AudioManager#setStreamVolume(int, int, int) */ 579 public void setStreamVolume(int streamType, int index, int flags) { 580 ensureValidStreamType(streamType); 581 VolumeStreamState streamState = mStreamStates[STREAM_VOLUME_ALIAS[streamType]]; 582 583 final int oldIndex = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 584 585 // setting ring or notifications volume to 0 on voice capable devices enters silent mode 586 if (mVoiceCapable && (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 587 (STREAM_VOLUME_ALIAS[streamType] == AudioSystem.STREAM_RING))) { 588 int newRingerMode = mRingerMode; 589 if (index == 0) { 590 newRingerMode = System.getInt(mContentResolver, System.VIBRATE_IN_SILENT, 1) == 1 591 ? AudioManager.RINGER_MODE_VIBRATE 592 : AudioManager.RINGER_MODE_SILENT; 593 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, false, true); 594 } else { 595 newRingerMode = AudioManager.RINGER_MODE_NORMAL; 596 } 597 if (newRingerMode != mRingerMode) { 598 setRingerMode(newRingerMode); 599 } 600 } 601 602 index = rescaleIndex(index * 10, streamType, STREAM_VOLUME_ALIAS[streamType]); 603 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, false, true); 604 605 index = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 606 607 sendVolumeUpdate(streamType, oldIndex, index, flags); 608 } 609 610 // UI update and Broadcast Intent 611 private void sendVolumeUpdate(int streamType, int oldIndex, int index, int flags) { 612 if (!mVoiceCapable && (streamType == AudioSystem.STREAM_RING)) { 613 streamType = AudioSystem.STREAM_NOTIFICATION; 614 } 615 616 mVolumePanel.postVolumeChanged(streamType, flags); 617 618 oldIndex = (oldIndex + 5) / 10; 619 index = (index + 5) / 10; 620 Intent intent = new Intent(AudioManager.VOLUME_CHANGED_ACTION); 621 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, streamType); 622 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, index); 623 intent.putExtra(AudioManager.EXTRA_PREV_VOLUME_STREAM_VALUE, oldIndex); 624 mContext.sendBroadcast(intent); 625 } 626 627 /** 628 * Sets the stream state's index, and posts a message to set system volume. 629 * This will not call out to the UI. Assumes a valid stream type. 630 * 631 * @param streamType Type of the stream 632 * @param index Desired volume index of the stream 633 * @param force If true, set the volume even if the desired volume is same 634 * as the current volume. 635 * @param lastAudible If true, stores new index as last audible one 636 */ 637 private void setStreamVolumeInt(int streamType, int index, boolean force, boolean lastAudible) { 638 VolumeStreamState streamState = mStreamStates[streamType]; 639 640 // If stream is muted, set last audible index only 641 if (streamState.muteCount() != 0) { 642 // Do not allow last audible index to be 0 643 if (index != 0) { 644 streamState.setLastAudibleIndex(index); 645 // Post a persist volume msg 646 sendMsg(mAudioHandler, MSG_PERSIST_VOLUME, streamType, 647 SENDMSG_REPLACE, 0, 1, streamState, PERSIST_DELAY); 648 } 649 } else { 650 if (streamState.setIndex(index, lastAudible) || force) { 651 // Post message to set system volume (it in turn will post a message 652 // to persist). 653 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, streamType, SENDMSG_NOOP, 0, 0, 654 streamState, 0); 655 } 656 } 657 } 658 659 /** @see AudioManager#setStreamSolo(int, boolean) */ 660 public void setStreamSolo(int streamType, boolean state, IBinder cb) { 661 for (int stream = 0; stream < mStreamStates.length; stream++) { 662 if (!isStreamAffectedByMute(stream) || stream == streamType) continue; 663 // Bring back last audible volume 664 mStreamStates[stream].mute(cb, state); 665 } 666 } 667 668 /** @see AudioManager#setStreamMute(int, boolean) */ 669 public void setStreamMute(int streamType, boolean state, IBinder cb) { 670 if (isStreamAffectedByMute(streamType)) { 671 mStreamStates[streamType].mute(cb, state); 672 } 673 } 674 675 /** get stream mute state. */ 676 public boolean isStreamMute(int streamType) { 677 return (mStreamStates[streamType].muteCount() != 0); 678 } 679 680 /** @see AudioManager#getStreamVolume(int) */ 681 public int getStreamVolume(int streamType) { 682 ensureValidStreamType(streamType); 683 return (mStreamStates[streamType].mIndex + 5) / 10; 684 } 685 686 /** @see AudioManager#getStreamMaxVolume(int) */ 687 public int getStreamMaxVolume(int streamType) { 688 ensureValidStreamType(streamType); 689 return (mStreamStates[streamType].getMaxIndex() + 5) / 10; 690 } 691 692 693 /** Get last audible volume before stream was muted. */ 694 public int getLastAudibleStreamVolume(int streamType) { 695 ensureValidStreamType(streamType); 696 return (mStreamStates[streamType].mLastAudibleIndex + 5) / 10; 697 } 698 699 /** @see AudioManager#getRingerMode() */ 700 public int getRingerMode() { 701 return mRingerMode; 702 } 703 704 /** @see AudioManager#setRingerMode(int) */ 705 public void setRingerMode(int ringerMode) { 706 synchronized (mSettingsLock) { 707 if (ringerMode != mRingerMode) { 708 setRingerModeInt(ringerMode, true); 709 // Send sticky broadcast 710 broadcastRingerMode(); 711 } 712 } 713 } 714 715 private void setRingerModeInt(int ringerMode, boolean persist) { 716 mRingerMode = ringerMode; 717 718 // Mute stream if not previously muted by ringer mode and ringer mode 719 // is not RINGER_MODE_NORMAL and stream is affected by ringer mode. 720 // Unmute stream if previously muted by ringer mode and ringer mode 721 // is RINGER_MODE_NORMAL or stream is not affected by ringer mode. 722 int numStreamTypes = AudioSystem.getNumStreamTypes(); 723 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 724 if (isStreamMutedByRingerMode(streamType)) { 725 if (!isStreamAffectedByRingerMode(streamType) || 726 mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 727 // ring and notifications volume should never be 0 when not silenced 728 // on voice capable devices 729 if (mVoiceCapable && 730 STREAM_VOLUME_ALIAS[streamType] == AudioSystem.STREAM_RING && 731 mStreamStates[streamType].mLastAudibleIndex == 0) { 732 mStreamStates[streamType].mLastAudibleIndex = 10; 733 } 734 mStreamStates[streamType].mute(null, false); 735 mRingerModeMutedStreams &= ~(1 << streamType); 736 } 737 } else { 738 if (isStreamAffectedByRingerMode(streamType) && 739 mRingerMode != AudioManager.RINGER_MODE_NORMAL) { 740 mStreamStates[streamType].mute(null, true); 741 mRingerModeMutedStreams |= (1 << streamType); 742 } 743 } 744 } 745 746 // Post a persist ringer mode msg 747 if (persist) { 748 sendMsg(mAudioHandler, MSG_PERSIST_RINGER_MODE, SHARED_MSG, 749 SENDMSG_REPLACE, 0, 0, null, PERSIST_DELAY); 750 } 751 } 752 753 /** @see AudioManager#shouldVibrate(int) */ 754 public boolean shouldVibrate(int vibrateType) { 755 756 switch (getVibrateSetting(vibrateType)) { 757 758 case AudioManager.VIBRATE_SETTING_ON: 759 return mRingerMode != AudioManager.RINGER_MODE_SILENT; 760 761 case AudioManager.VIBRATE_SETTING_ONLY_SILENT: 762 return mRingerMode == AudioManager.RINGER_MODE_VIBRATE; 763 764 case AudioManager.VIBRATE_SETTING_OFF: 765 // return false, even for incoming calls 766 return false; 767 768 default: 769 return false; 770 } 771 } 772 773 /** @see AudioManager#getVibrateSetting(int) */ 774 public int getVibrateSetting(int vibrateType) { 775 return (mVibrateSetting >> (vibrateType * 2)) & 3; 776 } 777 778 /** @see AudioManager#setVibrateSetting(int, int) */ 779 public void setVibrateSetting(int vibrateType, int vibrateSetting) { 780 781 mVibrateSetting = getValueForVibrateSetting(mVibrateSetting, vibrateType, vibrateSetting); 782 783 // Broadcast change 784 broadcastVibrateSetting(vibrateType); 785 786 // Post message to set ringer mode (it in turn will post a message 787 // to persist) 788 sendMsg(mAudioHandler, MSG_PERSIST_VIBRATE_SETTING, SHARED_MSG, SENDMSG_NOOP, 0, 0, 789 null, 0); 790 } 791 792 /** 793 * @see #setVibrateSetting(int, int) 794 */ 795 public static int getValueForVibrateSetting(int existingValue, int vibrateType, 796 int vibrateSetting) { 797 798 // First clear the existing setting. Each vibrate type has two bits in 799 // the value. Note '3' is '11' in binary. 800 existingValue &= ~(3 << (vibrateType * 2)); 801 802 // Set into the old value 803 existingValue |= (vibrateSetting & 3) << (vibrateType * 2); 804 805 return existingValue; 806 } 807 808 private class SetModeDeathHandler implements IBinder.DeathRecipient { 809 private IBinder mCb; // To be notified of client's death 810 private int mPid; 811 private int mMode = AudioSystem.MODE_NORMAL; // Current mode set by this client 812 813 SetModeDeathHandler(IBinder cb, int pid) { 814 mCb = cb; 815 mPid = pid; 816 } 817 818 public void binderDied() { 819 int newModeOwnerPid = 0; 820 synchronized(mSetModeDeathHandlers) { 821 Log.w(TAG, "setMode() client died"); 822 int index = mSetModeDeathHandlers.indexOf(this); 823 if (index < 0) { 824 Log.w(TAG, "unregistered setMode() client died"); 825 } else { 826 newModeOwnerPid = setModeInt(AudioSystem.MODE_NORMAL, mCb, mPid); 827 } 828 } 829 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 830 // SCO connections not started by the application changing the mode 831 if (newModeOwnerPid != 0) { 832 disconnectBluetoothSco(newModeOwnerPid); 833 } 834 } 835 836 public int getPid() { 837 return mPid; 838 } 839 840 public void setMode(int mode) { 841 mMode = mode; 842 } 843 844 public int getMode() { 845 return mMode; 846 } 847 848 public IBinder getBinder() { 849 return mCb; 850 } 851 } 852 853 /** @see AudioManager#setMode(int) */ 854 public void setMode(int mode, IBinder cb) { 855 if (!checkAudioSettingsPermission("setMode()")) { 856 return; 857 } 858 859 if (mode < AudioSystem.MODE_CURRENT || mode >= AudioSystem.NUM_MODES) { 860 return; 861 } 862 863 int newModeOwnerPid = 0; 864 synchronized(mSetModeDeathHandlers) { 865 if (mode == AudioSystem.MODE_CURRENT) { 866 mode = mMode; 867 } 868 newModeOwnerPid = setModeInt(mode, cb, Binder.getCallingPid()); 869 } 870 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 871 // SCO connections not started by the application changing the mode 872 if (newModeOwnerPid != 0) { 873 disconnectBluetoothSco(newModeOwnerPid); 874 } 875 } 876 877 // must be called synchronized on mSetModeDeathHandlers 878 // setModeInt() returns a valid PID if the audio mode was successfully set to 879 // any mode other than NORMAL. 880 int setModeInt(int mode, IBinder cb, int pid) { 881 int newModeOwnerPid = 0; 882 if (cb == null) { 883 Log.e(TAG, "setModeInt() called with null binder"); 884 return newModeOwnerPid; 885 } 886 887 SetModeDeathHandler hdlr = null; 888 Iterator iter = mSetModeDeathHandlers.iterator(); 889 while (iter.hasNext()) { 890 SetModeDeathHandler h = (SetModeDeathHandler)iter.next(); 891 if (h.getPid() == pid) { 892 hdlr = h; 893 // Remove from client list so that it is re-inserted at top of list 894 iter.remove(); 895 hdlr.getBinder().unlinkToDeath(hdlr, 0); 896 break; 897 } 898 } 899 int status = AudioSystem.AUDIO_STATUS_OK; 900 do { 901 if (mode == AudioSystem.MODE_NORMAL) { 902 // get new mode from client at top the list if any 903 if (!mSetModeDeathHandlers.isEmpty()) { 904 hdlr = mSetModeDeathHandlers.get(0); 905 cb = hdlr.getBinder(); 906 mode = hdlr.getMode(); 907 } 908 } else { 909 if (hdlr == null) { 910 hdlr = new SetModeDeathHandler(cb, pid); 911 } 912 // Register for client death notification 913 try { 914 cb.linkToDeath(hdlr, 0); 915 } catch (RemoteException e) { 916 // Client has died! 917 Log.w(TAG, "setMode() could not link to "+cb+" binder death"); 918 } 919 920 // Last client to call setMode() is always at top of client list 921 // as required by SetModeDeathHandler.binderDied() 922 mSetModeDeathHandlers.add(0, hdlr); 923 hdlr.setMode(mode); 924 } 925 926 if (mode != mMode) { 927 status = AudioSystem.setPhoneState(mode); 928 if (status == AudioSystem.AUDIO_STATUS_OK) { 929 // automatically handle audio focus for mode changes 930 handleFocusForCalls(mMode, mode, cb); 931 mMode = mode; 932 } else { 933 if (hdlr != null) { 934 mSetModeDeathHandlers.remove(hdlr); 935 cb.unlinkToDeath(hdlr, 0); 936 } 937 // force reading new top of mSetModeDeathHandlers stack 938 mode = AudioSystem.MODE_NORMAL; 939 } 940 } else { 941 status = AudioSystem.AUDIO_STATUS_OK; 942 } 943 } while (status != AudioSystem.AUDIO_STATUS_OK && !mSetModeDeathHandlers.isEmpty()); 944 945 if (status == AudioSystem.AUDIO_STATUS_OK) { 946 if (mode != AudioSystem.MODE_NORMAL) { 947 if (mSetModeDeathHandlers.isEmpty()) { 948 Log.e(TAG, "setMode() different from MODE_NORMAL with empty mode client stack"); 949 } else { 950 newModeOwnerPid = mSetModeDeathHandlers.get(0).getPid(); 951 } 952 } 953 int streamType = getActiveStreamType(AudioManager.USE_DEFAULT_STREAM_TYPE); 954 int index = mStreamStates[STREAM_VOLUME_ALIAS[streamType]].mIndex; 955 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, true, false); 956 } 957 return newModeOwnerPid; 958 } 959 960 /** pre-condition: oldMode != newMode */ 961 private void handleFocusForCalls(int oldMode, int newMode, IBinder cb) { 962 // if ringing 963 if (newMode == AudioSystem.MODE_RINGTONE) { 964 // if not ringing silently 965 int ringVolume = AudioService.this.getStreamVolume(AudioManager.STREAM_RING); 966 if (ringVolume > 0) { 967 // request audio focus for the communication focus entry 968 requestAudioFocus(AudioManager.STREAM_RING, 969 AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, cb, 970 null /* IAudioFocusDispatcher allowed to be null only for this clientId */, 971 IN_VOICE_COMM_FOCUS_ID /*clientId*/, 972 "system"); 973 974 } 975 } 976 // if entering call 977 else if ((newMode == AudioSystem.MODE_IN_CALL) 978 || (newMode == AudioSystem.MODE_IN_COMMUNICATION)) { 979 // request audio focus for the communication focus entry 980 // (it's ok if focus was already requested during ringing) 981 requestAudioFocus(AudioManager.STREAM_RING, 982 AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, cb, 983 null /* IAudioFocusDispatcher allowed to be null only for this clientId */, 984 IN_VOICE_COMM_FOCUS_ID /*clientId*/, 985 "system"); 986 } 987 // if exiting call 988 else if (newMode == AudioSystem.MODE_NORMAL) { 989 // abandon audio focus for communication focus entry 990 abandonAudioFocus(null, IN_VOICE_COMM_FOCUS_ID); 991 } 992 } 993 994 /** @see AudioManager#getMode() */ 995 public int getMode() { 996 return mMode; 997 } 998 999 /** @see AudioManager#playSoundEffect(int) */ 1000 public void playSoundEffect(int effectType) { 1001 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SHARED_MSG, SENDMSG_NOOP, 1002 effectType, -1, null, 0); 1003 } 1004 1005 /** @see AudioManager#playSoundEffect(int, float) */ 1006 public void playSoundEffectVolume(int effectType, float volume) { 1007 loadSoundEffects(); 1008 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SHARED_MSG, SENDMSG_NOOP, 1009 effectType, (int) (volume * 1000), null, 0); 1010 } 1011 1012 /** 1013 * Loads samples into the soundpool. 1014 * This method must be called at when sound effects are enabled 1015 */ 1016 public boolean loadSoundEffects() { 1017 int status; 1018 1019 synchronized (mSoundEffectsLock) { 1020 if (!mBootCompleted) { 1021 Log.w(TAG, "loadSoundEffects() called before boot complete"); 1022 return false; 1023 } 1024 1025 if (mSoundPool != null) { 1026 return true; 1027 } 1028 mSoundPool = new SoundPool(NUM_SOUNDPOOL_CHANNELS, AudioSystem.STREAM_SYSTEM, 0); 1029 if (mSoundPool == null) { 1030 Log.w(TAG, "loadSoundEffects() could not allocate sound pool"); 1031 return false; 1032 } 1033 1034 try { 1035 mSoundPoolCallBack = null; 1036 mSoundPoolListenerThread = new SoundPoolListenerThread(); 1037 mSoundPoolListenerThread.start(); 1038 // Wait for mSoundPoolCallBack to be set by the other thread 1039 mSoundEffectsLock.wait(); 1040 } catch (InterruptedException e) { 1041 Log.w(TAG, "Interrupted while waiting sound pool listener thread."); 1042 } 1043 1044 if (mSoundPoolCallBack == null) { 1045 Log.w(TAG, "loadSoundEffects() could not create SoundPool listener or thread"); 1046 if (mSoundPoolLooper != null) { 1047 mSoundPoolLooper.quit(); 1048 mSoundPoolLooper = null; 1049 } 1050 mSoundPoolListenerThread = null; 1051 mSoundPool.release(); 1052 mSoundPool = null; 1053 return false; 1054 } 1055 /* 1056 * poolId table: The value -1 in this table indicates that corresponding 1057 * file (same index in SOUND_EFFECT_FILES[] has not been loaded. 1058 * Once loaded, the value in poolId is the sample ID and the same 1059 * sample can be reused for another effect using the same file. 1060 */ 1061 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1062 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1063 poolId[fileIdx] = -1; 1064 } 1065 /* 1066 * Effects whose value in SOUND_EFFECT_FILES_MAP[effect][1] is -1 must be loaded. 1067 * If load succeeds, value in SOUND_EFFECT_FILES_MAP[effect][1] is > 0: 1068 * this indicates we have a valid sample loaded for this effect. 1069 */ 1070 1071 int lastSample = 0; 1072 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1073 // Do not load sample if this effect uses the MediaPlayer 1074 if (SOUND_EFFECT_FILES_MAP[effect][1] == 0) { 1075 continue; 1076 } 1077 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == -1) { 1078 String filePath = Environment.getRootDirectory() 1079 + SOUND_EFFECTS_PATH 1080 + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effect][0]]; 1081 int sampleId = mSoundPool.load(filePath, 0); 1082 if (sampleId <= 0) { 1083 Log.w(TAG, "Soundpool could not load file: "+filePath); 1084 } else { 1085 SOUND_EFFECT_FILES_MAP[effect][1] = sampleId; 1086 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = sampleId; 1087 lastSample = sampleId; 1088 } 1089 } else { 1090 SOUND_EFFECT_FILES_MAP[effect][1] = poolId[SOUND_EFFECT_FILES_MAP[effect][0]]; 1091 } 1092 } 1093 // wait for all samples to be loaded 1094 if (lastSample != 0) { 1095 mSoundPoolCallBack.setLastSample(lastSample); 1096 1097 try { 1098 mSoundEffectsLock.wait(); 1099 status = mSoundPoolCallBack.status(); 1100 } catch (java.lang.InterruptedException e) { 1101 Log.w(TAG, "Interrupted while waiting sound pool callback."); 1102 status = -1; 1103 } 1104 } else { 1105 status = -1; 1106 } 1107 1108 if (mSoundPoolLooper != null) { 1109 mSoundPoolLooper.quit(); 1110 mSoundPoolLooper = null; 1111 } 1112 mSoundPoolListenerThread = null; 1113 if (status != 0) { 1114 Log.w(TAG, 1115 "loadSoundEffects(), Error " 1116 + ((lastSample != 0) ? mSoundPoolCallBack.status() : -1) 1117 + " while loading samples"); 1118 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1119 if (SOUND_EFFECT_FILES_MAP[effect][1] > 0) { 1120 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1121 } 1122 } 1123 1124 mSoundPool.release(); 1125 mSoundPool = null; 1126 } 1127 } 1128 return (status == 0); 1129 } 1130 1131 /** 1132 * Unloads samples from the sound pool. 1133 * This method can be called to free some memory when 1134 * sound effects are disabled. 1135 */ 1136 public void unloadSoundEffects() { 1137 synchronized (mSoundEffectsLock) { 1138 if (mSoundPool == null) { 1139 return; 1140 } 1141 1142 mAudioHandler.removeMessages(MSG_LOAD_SOUND_EFFECTS); 1143 mAudioHandler.removeMessages(MSG_PLAY_SOUND_EFFECT); 1144 1145 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1146 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1147 poolId[fileIdx] = 0; 1148 } 1149 1150 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1151 if (SOUND_EFFECT_FILES_MAP[effect][1] <= 0) { 1152 continue; 1153 } 1154 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == 0) { 1155 mSoundPool.unload(SOUND_EFFECT_FILES_MAP[effect][1]); 1156 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1157 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = -1; 1158 } 1159 } 1160 mSoundPool.release(); 1161 mSoundPool = null; 1162 } 1163 } 1164 1165 class SoundPoolListenerThread extends Thread { 1166 public SoundPoolListenerThread() { 1167 super("SoundPoolListenerThread"); 1168 } 1169 1170 @Override 1171 public void run() { 1172 1173 Looper.prepare(); 1174 mSoundPoolLooper = Looper.myLooper(); 1175 1176 synchronized (mSoundEffectsLock) { 1177 if (mSoundPool != null) { 1178 mSoundPoolCallBack = new SoundPoolCallback(); 1179 mSoundPool.setOnLoadCompleteListener(mSoundPoolCallBack); 1180 } 1181 mSoundEffectsLock.notify(); 1182 } 1183 Looper.loop(); 1184 } 1185 } 1186 1187 private final class SoundPoolCallback implements 1188 android.media.SoundPool.OnLoadCompleteListener { 1189 1190 int mStatus; 1191 int mLastSample; 1192 1193 public int status() { 1194 return mStatus; 1195 } 1196 1197 public void setLastSample(int sample) { 1198 mLastSample = sample; 1199 } 1200 1201 public void onLoadComplete(SoundPool soundPool, int sampleId, int status) { 1202 synchronized (mSoundEffectsLock) { 1203 if (status != 0) { 1204 mStatus = status; 1205 } 1206 if (sampleId == mLastSample) { 1207 mSoundEffectsLock.notify(); 1208 } 1209 } 1210 } 1211 } 1212 1213 /** @see AudioManager#reloadAudioSettings() */ 1214 public void reloadAudioSettings() { 1215 // restore ringer mode, ringer mode affected streams, mute affected streams and vibrate settings 1216 readPersistedSettings(); 1217 1218 // restore volume settings 1219 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1220 for (int streamType = 0; streamType < numStreamTypes; streamType++) { 1221 VolumeStreamState streamState = mStreamStates[streamType]; 1222 1223 String settingName = System.VOLUME_SETTINGS[STREAM_VOLUME_ALIAS[streamType]]; 1224 String lastAudibleSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 1225 int index = Settings.System.getInt(mContentResolver, 1226 settingName, 1227 AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1228 if (STREAM_VOLUME_ALIAS[streamType] != streamType) { 1229 index = rescaleIndex(index * 10, STREAM_VOLUME_ALIAS[streamType], streamType); 1230 } else { 1231 index *= 10; 1232 } 1233 streamState.mIndex = streamState.getValidIndex(index); 1234 1235 index = (index + 5) / 10; 1236 index = Settings.System.getInt(mContentResolver, 1237 lastAudibleSettingName, 1238 (index > 0) ? index : AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1239 if (STREAM_VOLUME_ALIAS[streamType] != streamType) { 1240 index = rescaleIndex(index * 10, STREAM_VOLUME_ALIAS[streamType], streamType); 1241 } else { 1242 index *= 10; 1243 } 1244 streamState.mLastAudibleIndex = streamState.getValidIndex(index); 1245 1246 // unmute stream that was muted but is not affect by mute anymore 1247 if (streamState.muteCount() != 0 && !isStreamAffectedByMute(streamType)) { 1248 int size = streamState.mDeathHandlers.size(); 1249 for (int i = 0; i < size; i++) { 1250 streamState.mDeathHandlers.get(i).mMuteCount = 1; 1251 streamState.mDeathHandlers.get(i).mute(false); 1252 } 1253 } 1254 // apply stream volume 1255 if (streamState.muteCount() == 0) { 1256 setStreamVolumeIndex(streamType, streamState.mIndex); 1257 } 1258 } 1259 1260 // apply new ringer mode 1261 setRingerModeInt(getRingerMode(), false); 1262 } 1263 1264 /** @see AudioManager#setSpeakerphoneOn() */ 1265 public void setSpeakerphoneOn(boolean on){ 1266 if (!checkAudioSettingsPermission("setSpeakerphoneOn()")) { 1267 return; 1268 } 1269 mForcedUseForComm = on ? AudioSystem.FORCE_SPEAKER : AudioSystem.FORCE_NONE; 1270 1271 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SHARED_MSG, SENDMSG_QUEUE, 1272 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1273 } 1274 1275 /** @see AudioManager#isSpeakerphoneOn() */ 1276 public boolean isSpeakerphoneOn() { 1277 return (mForcedUseForComm == AudioSystem.FORCE_SPEAKER); 1278 } 1279 1280 /** @see AudioManager#setBluetoothScoOn() */ 1281 public void setBluetoothScoOn(boolean on){ 1282 if (!checkAudioSettingsPermission("setBluetoothScoOn()")) { 1283 return; 1284 } 1285 mForcedUseForComm = on ? AudioSystem.FORCE_BT_SCO : AudioSystem.FORCE_NONE; 1286 1287 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SHARED_MSG, SENDMSG_QUEUE, 1288 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1289 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SHARED_MSG, SENDMSG_QUEUE, 1290 AudioSystem.FOR_RECORD, mForcedUseForComm, null, 0); 1291 } 1292 1293 /** @see AudioManager#isBluetoothScoOn() */ 1294 public boolean isBluetoothScoOn() { 1295 return (mForcedUseForComm == AudioSystem.FORCE_BT_SCO); 1296 } 1297 1298 /** @see AudioManager#startBluetoothSco() */ 1299 public void startBluetoothSco(IBinder cb){ 1300 if (!checkAudioSettingsPermission("startBluetoothSco()") || 1301 !mBootCompleted) { 1302 return; 1303 } 1304 ScoClient client = getScoClient(cb, true); 1305 client.incCount(); 1306 } 1307 1308 /** @see AudioManager#stopBluetoothSco() */ 1309 public void stopBluetoothSco(IBinder cb){ 1310 if (!checkAudioSettingsPermission("stopBluetoothSco()") || 1311 !mBootCompleted) { 1312 return; 1313 } 1314 ScoClient client = getScoClient(cb, false); 1315 if (client != null) { 1316 client.decCount(); 1317 } 1318 } 1319 1320 private class ScoClient implements IBinder.DeathRecipient { 1321 private IBinder mCb; // To be notified of client's death 1322 private int mCreatorPid; 1323 private int mStartcount; // number of SCO connections started by this client 1324 1325 ScoClient(IBinder cb) { 1326 mCb = cb; 1327 mCreatorPid = Binder.getCallingPid(); 1328 mStartcount = 0; 1329 } 1330 1331 public void binderDied() { 1332 synchronized(mScoClients) { 1333 Log.w(TAG, "SCO client died"); 1334 int index = mScoClients.indexOf(this); 1335 if (index < 0) { 1336 Log.w(TAG, "unregistered SCO client died"); 1337 } else { 1338 clearCount(true); 1339 mScoClients.remove(this); 1340 } 1341 } 1342 } 1343 1344 public void incCount() { 1345 synchronized(mScoClients) { 1346 requestScoState(BluetoothHeadset.STATE_AUDIO_CONNECTED); 1347 if (mStartcount == 0) { 1348 try { 1349 mCb.linkToDeath(this, 0); 1350 } catch (RemoteException e) { 1351 // client has already died! 1352 Log.w(TAG, "ScoClient incCount() could not link to "+mCb+" binder death"); 1353 } 1354 } 1355 mStartcount++; 1356 } 1357 } 1358 1359 public void decCount() { 1360 synchronized(mScoClients) { 1361 if (mStartcount == 0) { 1362 Log.w(TAG, "ScoClient.decCount() already 0"); 1363 } else { 1364 mStartcount--; 1365 if (mStartcount == 0) { 1366 try { 1367 mCb.unlinkToDeath(this, 0); 1368 } catch (NoSuchElementException e) { 1369 Log.w(TAG, "decCount() going to 0 but not registered to binder"); 1370 } 1371 } 1372 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1373 } 1374 } 1375 } 1376 1377 public void clearCount(boolean stopSco) { 1378 synchronized(mScoClients) { 1379 if (mStartcount != 0) { 1380 try { 1381 mCb.unlinkToDeath(this, 0); 1382 } catch (NoSuchElementException e) { 1383 Log.w(TAG, "clearCount() mStartcount: "+mStartcount+" != 0 but not registered to binder"); 1384 } 1385 } 1386 mStartcount = 0; 1387 if (stopSco) { 1388 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1389 } 1390 } 1391 } 1392 1393 public int getCount() { 1394 return mStartcount; 1395 } 1396 1397 public IBinder getBinder() { 1398 return mCb; 1399 } 1400 1401 public int getPid() { 1402 return mCreatorPid; 1403 } 1404 1405 public int totalCount() { 1406 synchronized(mScoClients) { 1407 int count = 0; 1408 int size = mScoClients.size(); 1409 for (int i = 0; i < size; i++) { 1410 count += mScoClients.get(i).getCount(); 1411 } 1412 return count; 1413 } 1414 } 1415 1416 private void requestScoState(int state) { 1417 checkScoAudioState(); 1418 if (totalCount() == 0) { 1419 if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) { 1420 // Make sure that the state transitions to CONNECTING even if we cannot initiate 1421 // the connection. 1422 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTING); 1423 // Accept SCO audio activation only in NORMAL audio mode or if the mode is 1424 // currently controlled by the same client process. 1425 synchronized(mSetModeDeathHandlers) { 1426 if ((mSetModeDeathHandlers.isEmpty() || 1427 mSetModeDeathHandlers.get(0).getPid() == mCreatorPid) && 1428 (mScoAudioState == SCO_STATE_INACTIVE || 1429 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 1430 if (mScoAudioState == SCO_STATE_INACTIVE) { 1431 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null) { 1432 if (mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1433 mBluetoothHeadsetDevice)) { 1434 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1435 } else { 1436 broadcastScoConnectionState( 1437 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1438 } 1439 } else if (getBluetoothHeadset()) { 1440 mScoAudioState = SCO_STATE_ACTIVATE_REQ; 1441 } 1442 } else { 1443 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1444 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTED); 1445 } 1446 } else { 1447 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1448 } 1449 } 1450 } else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED && 1451 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 1452 mScoAudioState == SCO_STATE_ACTIVATE_REQ)) { 1453 if (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL) { 1454 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null) { 1455 if (!mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1456 mBluetoothHeadsetDevice)) { 1457 mScoAudioState = SCO_STATE_INACTIVE; 1458 broadcastScoConnectionState( 1459 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1460 } 1461 } else if (getBluetoothHeadset()) { 1462 mScoAudioState = SCO_STATE_DEACTIVATE_REQ; 1463 } 1464 } else { 1465 mScoAudioState = SCO_STATE_INACTIVE; 1466 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1467 } 1468 } 1469 } 1470 } 1471 } 1472 1473 private void checkScoAudioState() { 1474 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null && 1475 mScoAudioState == SCO_STATE_INACTIVE && 1476 mBluetoothHeadset.getAudioState(mBluetoothHeadsetDevice) 1477 != BluetoothHeadset.STATE_AUDIO_DISCONNECTED) { 1478 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 1479 } 1480 } 1481 1482 private ScoClient getScoClient(IBinder cb, boolean create) { 1483 synchronized(mScoClients) { 1484 ScoClient client = null; 1485 int size = mScoClients.size(); 1486 for (int i = 0; i < size; i++) { 1487 client = mScoClients.get(i); 1488 if (client.getBinder() == cb) 1489 return client; 1490 } 1491 if (create) { 1492 client = new ScoClient(cb); 1493 mScoClients.add(client); 1494 } 1495 return client; 1496 } 1497 } 1498 1499 public void clearAllScoClients(int exceptPid, boolean stopSco) { 1500 synchronized(mScoClients) { 1501 ScoClient savedClient = null; 1502 int size = mScoClients.size(); 1503 for (int i = 0; i < size; i++) { 1504 ScoClient cl = mScoClients.get(i); 1505 if (cl.getPid() != exceptPid) { 1506 cl.clearCount(stopSco); 1507 } else { 1508 savedClient = cl; 1509 } 1510 } 1511 mScoClients.clear(); 1512 if (savedClient != null) { 1513 mScoClients.add(savedClient); 1514 } 1515 } 1516 } 1517 1518 private boolean getBluetoothHeadset() { 1519 boolean result = false; 1520 BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 1521 if (adapter != null) { 1522 result = adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener, 1523 BluetoothProfile.HEADSET); 1524 } 1525 // If we could not get a bluetooth headset proxy, send a failure message 1526 // without delay to reset the SCO audio state and clear SCO clients. 1527 // If we could get a proxy, send a delayed failure message that will reset our state 1528 // in case we don't receive onServiceConnected(). 1529 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 0, 1530 SENDMSG_REPLACE, 0, 0, null, result ? BT_HEADSET_CNCT_TIMEOUT_MS : 0); 1531 return result; 1532 } 1533 1534 private void disconnectBluetoothSco(int exceptPid) { 1535 synchronized(mScoClients) { 1536 checkScoAudioState(); 1537 if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL || 1538 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1539 if (mBluetoothHeadsetDevice != null) { 1540 if (mBluetoothHeadset != null) { 1541 if (!mBluetoothHeadset.stopVoiceRecognition( 1542 mBluetoothHeadsetDevice)) { 1543 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 0, 1544 SENDMSG_REPLACE, 0, 0, null, 0); 1545 } 1546 } else if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL && 1547 getBluetoothHeadset()) { 1548 mScoAudioState = SCO_STATE_DEACTIVATE_EXT_REQ; 1549 } 1550 } 1551 } else { 1552 clearAllScoClients(exceptPid, true); 1553 } 1554 } 1555 } 1556 1557 private void resetBluetoothSco() { 1558 synchronized(mScoClients) { 1559 clearAllScoClients(0, false); 1560 mScoAudioState = SCO_STATE_INACTIVE; 1561 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1562 } 1563 } 1564 1565 private void broadcastScoConnectionState(int state) { 1566 if (state != mScoConnectionState) { 1567 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED); 1568 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 1569 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_PREVIOUS_STATE, 1570 mScoConnectionState); 1571 mContext.sendStickyBroadcast(newIntent); 1572 mScoConnectionState = state; 1573 } 1574 } 1575 1576 private BluetoothProfile.ServiceListener mBluetoothProfileServiceListener = 1577 new BluetoothProfile.ServiceListener() { 1578 public void onServiceConnected(int profile, BluetoothProfile proxy) { 1579 synchronized (mScoClients) { 1580 // Discard timeout message 1581 mAudioHandler.removeMessages(MSG_BT_HEADSET_CNCT_FAILED); 1582 mBluetoothHeadset = (BluetoothHeadset) proxy; 1583 List<BluetoothDevice> deviceList = mBluetoothHeadset.getConnectedDevices(); 1584 if (deviceList.size() > 0) { 1585 mBluetoothHeadsetDevice = deviceList.get(0); 1586 } else { 1587 mBluetoothHeadsetDevice = null; 1588 } 1589 // Refresh SCO audio state 1590 checkScoAudioState(); 1591 // Continue pending action if any 1592 if (mScoAudioState == SCO_STATE_ACTIVATE_REQ || 1593 mScoAudioState == SCO_STATE_DEACTIVATE_REQ || 1594 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1595 boolean status = false; 1596 if (mBluetoothHeadsetDevice != null) { 1597 switch (mScoAudioState) { 1598 case SCO_STATE_ACTIVATE_REQ: 1599 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1600 status = mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1601 mBluetoothHeadsetDevice); 1602 break; 1603 case SCO_STATE_DEACTIVATE_REQ: 1604 status = mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1605 mBluetoothHeadsetDevice); 1606 break; 1607 case SCO_STATE_DEACTIVATE_EXT_REQ: 1608 status = mBluetoothHeadset.stopVoiceRecognition( 1609 mBluetoothHeadsetDevice); 1610 } 1611 } 1612 if (!status) { 1613 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 0, 1614 SENDMSG_REPLACE, 0, 0, null, 0); 1615 } 1616 } 1617 } 1618 } 1619 public void onServiceDisconnected(int profile) { 1620 synchronized (mScoClients) { 1621 mBluetoothHeadset = null; 1622 } 1623 } 1624 }; 1625 1626 /////////////////////////////////////////////////////////////////////////// 1627 // Internal methods 1628 /////////////////////////////////////////////////////////////////////////// 1629 1630 /** 1631 * Checks if the adjustment should change ringer mode instead of just 1632 * adjusting volume. If so, this will set the proper ringer mode and volume 1633 * indices on the stream states. 1634 */ 1635 private boolean checkForRingerModeChange(int oldIndex, int direction, int streamType) { 1636 boolean adjustVolumeIndex = true; 1637 int newRingerMode = mRingerMode; 1638 int uiIndex = (oldIndex + 5) / 10; 1639 boolean vibeInSilent = System.getInt(mContentResolver, System.VIBRATE_IN_SILENT, 1) == 1; 1640 1641 if (mRingerMode == RINGER_MODE_NORMAL) { 1642 if ((direction == AudioManager.ADJUST_LOWER) && (uiIndex <= 1)) { 1643 // enter silent mode if current index is the last audible one and not repeating a 1644 // volume key down 1645 if (vibeInSilent || mPrevVolDirection != AudioManager.ADJUST_LOWER) { 1646 // "silent mode", but which one? 1647 newRingerMode = vibeInSilent ? RINGER_MODE_VIBRATE : RINGER_MODE_SILENT; 1648 } 1649 if (uiIndex == 0 || 1650 (!vibeInSilent && 1651 mPrevVolDirection == AudioManager.ADJUST_LOWER && 1652 mVoiceCapable && streamType == AudioSystem.STREAM_RING)) { 1653 adjustVolumeIndex = false; 1654 } 1655 } 1656 } else if (mRingerMode == RINGER_MODE_VIBRATE) { 1657 if ((direction == AudioManager.ADJUST_LOWER)) { 1658 // Set it to silent, if it wasn't a long-press 1659 if (mPrevVolDirection != AudioManager.ADJUST_LOWER) { 1660 newRingerMode = RINGER_MODE_SILENT; 1661 } 1662 } else if (direction == AudioManager.ADJUST_RAISE) { 1663 newRingerMode = RINGER_MODE_NORMAL; 1664 } 1665 adjustVolumeIndex = false; 1666 } else { 1667 if (direction == AudioManager.ADJUST_RAISE) { 1668 // exiting silent mode 1669 // If VIBRATE_IN_SILENT, then go into vibrate mode 1670 newRingerMode = vibeInSilent ? RINGER_MODE_VIBRATE : RINGER_MODE_NORMAL; 1671 } 1672 adjustVolumeIndex = false; 1673 } 1674 1675 if (newRingerMode != mRingerMode) { 1676 setRingerMode(newRingerMode); 1677 } 1678 1679 mPrevVolDirection = direction; 1680 1681 return adjustVolumeIndex; 1682 } 1683 1684 public boolean isStreamAffectedByRingerMode(int streamType) { 1685 return (mRingerModeAffectedStreams & (1 << streamType)) != 0; 1686 } 1687 1688 private boolean isStreamMutedByRingerMode(int streamType) { 1689 return (mRingerModeMutedStreams & (1 << streamType)) != 0; 1690 } 1691 1692 public boolean isStreamAffectedByMute(int streamType) { 1693 return (mMuteAffectedStreams & (1 << streamType)) != 0; 1694 } 1695 1696 private void ensureValidDirection(int direction) { 1697 if (direction < AudioManager.ADJUST_LOWER || direction > AudioManager.ADJUST_RAISE) { 1698 throw new IllegalArgumentException("Bad direction " + direction); 1699 } 1700 } 1701 1702 private void ensureValidStreamType(int streamType) { 1703 if (streamType < 0 || streamType >= mStreamStates.length) { 1704 throw new IllegalArgumentException("Bad stream type " + streamType); 1705 } 1706 } 1707 1708 private int getActiveStreamType(int suggestedStreamType) { 1709 1710 if (mVoiceCapable) { 1711 boolean isOffhook = false; 1712 try { 1713 ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); 1714 if (phone != null) isOffhook = phone.isOffhook(); 1715 } catch (RemoteException e) { 1716 Log.w(TAG, "Couldn't connect to phone service", e); 1717 } 1718 1719 if (isOffhook || getMode() == AudioManager.MODE_IN_COMMUNICATION) { 1720 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 1721 == AudioSystem.FORCE_BT_SCO) { 1722 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 1723 return AudioSystem.STREAM_BLUETOOTH_SCO; 1724 } else { 1725 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 1726 return AudioSystem.STREAM_VOICE_CALL; 1727 } 1728 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0)) { 1729 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC..."); 1730 return AudioSystem.STREAM_MUSIC; 1731 } else if (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) { 1732 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_RING..." 1733 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 1734 return AudioSystem.STREAM_RING; 1735 } else { 1736 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 1737 return suggestedStreamType; 1738 } 1739 } else { 1740 if (getMode() == AudioManager.MODE_IN_COMMUNICATION) { 1741 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 1742 == AudioSystem.FORCE_BT_SCO) { 1743 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 1744 return AudioSystem.STREAM_BLUETOOTH_SCO; 1745 } else { 1746 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 1747 return AudioSystem.STREAM_VOICE_CALL; 1748 } 1749 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_NOTIFICATION, 1750 NOTIFICATION_VOLUME_DELAY_MS) || 1751 AudioSystem.isStreamActive(AudioSystem.STREAM_RING, 1752 NOTIFICATION_VOLUME_DELAY_MS)) { 1753 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_NOTIFICATION..."); 1754 return AudioSystem.STREAM_NOTIFICATION; 1755 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0) || 1756 (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE)) { 1757 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC " 1758 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 1759 return AudioSystem.STREAM_MUSIC; 1760 } else { 1761 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 1762 return suggestedStreamType; 1763 } 1764 } 1765 } 1766 1767 private void broadcastRingerMode() { 1768 // Send sticky broadcast 1769 Intent broadcast = new Intent(AudioManager.RINGER_MODE_CHANGED_ACTION); 1770 broadcast.putExtra(AudioManager.EXTRA_RINGER_MODE, mRingerMode); 1771 broadcast.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT 1772 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 1773 long origCallerIdentityToken = Binder.clearCallingIdentity(); 1774 mContext.sendStickyBroadcast(broadcast); 1775 Binder.restoreCallingIdentity(origCallerIdentityToken); 1776 } 1777 1778 private void broadcastVibrateSetting(int vibrateType) { 1779 // Send broadcast 1780 if (ActivityManagerNative.isSystemReady()) { 1781 Intent broadcast = new Intent(AudioManager.VIBRATE_SETTING_CHANGED_ACTION); 1782 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_TYPE, vibrateType); 1783 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_SETTING, getVibrateSetting(vibrateType)); 1784 mContext.sendBroadcast(broadcast); 1785 } 1786 } 1787 1788 // Message helper methods 1789 private static int getMsg(int baseMsg, int streamType) { 1790 return (baseMsg & 0xffff) | streamType << 16; 1791 } 1792 1793 private static int getMsgBase(int msg) { 1794 return msg & 0xffff; 1795 } 1796 1797 private static void sendMsg(Handler handler, int baseMsg, int streamType, 1798 int existingMsgPolicy, int arg1, int arg2, Object obj, int delay) { 1799 int msg = (streamType == SHARED_MSG) ? baseMsg : getMsg(baseMsg, streamType); 1800 1801 if (existingMsgPolicy == SENDMSG_REPLACE) { 1802 handler.removeMessages(msg); 1803 } else if (existingMsgPolicy == SENDMSG_NOOP && handler.hasMessages(msg)) { 1804 return; 1805 } 1806 1807 handler 1808 .sendMessageDelayed(handler.obtainMessage(msg, arg1, arg2, obj), delay); 1809 } 1810 1811 boolean checkAudioSettingsPermission(String method) { 1812 if (mContext.checkCallingOrSelfPermission("android.permission.MODIFY_AUDIO_SETTINGS") 1813 == PackageManager.PERMISSION_GRANTED) { 1814 return true; 1815 } 1816 String msg = "Audio Settings Permission Denial: " + method + " from pid=" 1817 + Binder.getCallingPid() 1818 + ", uid=" + Binder.getCallingUid(); 1819 Log.w(TAG, msg); 1820 return false; 1821 } 1822 1823 1824 /////////////////////////////////////////////////////////////////////////// 1825 // Inner classes 1826 /////////////////////////////////////////////////////////////////////////// 1827 1828 public class VolumeStreamState { 1829 private final int mStreamType; 1830 1831 private String mVolumeIndexSettingName; 1832 private String mLastAudibleVolumeIndexSettingName; 1833 private int mIndexMax; 1834 private int mIndex; 1835 private int mLastAudibleIndex; 1836 private ArrayList<VolumeDeathHandler> mDeathHandlers; //handles mute/solo requests client death 1837 1838 private VolumeStreamState(String settingName, int streamType) { 1839 1840 setVolumeIndexSettingName(settingName); 1841 1842 mStreamType = streamType; 1843 1844 final ContentResolver cr = mContentResolver; 1845 mIndexMax = MAX_STREAM_VOLUME[streamType]; 1846 mIndex = Settings.System.getInt(cr, 1847 mVolumeIndexSettingName, 1848 AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1849 mLastAudibleIndex = Settings.System.getInt(cr, 1850 mLastAudibleVolumeIndexSettingName, 1851 (mIndex > 0) ? mIndex : AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1852 AudioSystem.initStreamVolume(streamType, 0, mIndexMax); 1853 mIndexMax *= 10; 1854 mIndex = getValidIndex(10 * mIndex); 1855 mLastAudibleIndex = getValidIndex(10 * mLastAudibleIndex); 1856 setStreamVolumeIndex(streamType, mIndex); 1857 mDeathHandlers = new ArrayList<VolumeDeathHandler>(); 1858 } 1859 1860 public void setVolumeIndexSettingName(String settingName) { 1861 mVolumeIndexSettingName = settingName; 1862 mLastAudibleVolumeIndexSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 1863 } 1864 1865 public boolean adjustIndex(int deltaIndex) { 1866 return setIndex(mIndex + deltaIndex * 10, true); 1867 } 1868 1869 public boolean setIndex(int index, boolean lastAudible) { 1870 int oldIndex = mIndex; 1871 mIndex = getValidIndex(index); 1872 1873 if (oldIndex != mIndex) { 1874 if (lastAudible) { 1875 mLastAudibleIndex = mIndex; 1876 } 1877 // Apply change to all streams using this one as alias 1878 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1879 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 1880 if (streamType != mStreamType && STREAM_VOLUME_ALIAS[streamType] == mStreamType) { 1881 mStreamStates[streamType].setIndex(rescaleIndex(mIndex, mStreamType, streamType), lastAudible); 1882 } 1883 } 1884 return true; 1885 } else { 1886 return false; 1887 } 1888 } 1889 1890 public void setLastAudibleIndex(int index) { 1891 mLastAudibleIndex = getValidIndex(index); 1892 } 1893 1894 public void adjustLastAudibleIndex(int deltaIndex) { 1895 setLastAudibleIndex(mLastAudibleIndex + deltaIndex * 10); 1896 } 1897 1898 public int getMaxIndex() { 1899 return mIndexMax; 1900 } 1901 1902 public void mute(IBinder cb, boolean state) { 1903 VolumeDeathHandler handler = getDeathHandler(cb, state); 1904 if (handler == null) { 1905 Log.e(TAG, "Could not get client death handler for stream: "+mStreamType); 1906 return; 1907 } 1908 handler.mute(state); 1909 } 1910 1911 private int getValidIndex(int index) { 1912 if (index < 0) { 1913 return 0; 1914 } else if (index > mIndexMax) { 1915 return mIndexMax; 1916 } 1917 1918 return index; 1919 } 1920 1921 private class VolumeDeathHandler implements IBinder.DeathRecipient { 1922 private IBinder mICallback; // To be notified of client's death 1923 private int mMuteCount; // Number of active mutes for this client 1924 1925 VolumeDeathHandler(IBinder cb) { 1926 mICallback = cb; 1927 } 1928 1929 public void mute(boolean state) { 1930 synchronized(mDeathHandlers) { 1931 if (state) { 1932 if (mMuteCount == 0) { 1933 // Register for client death notification 1934 try { 1935 // mICallback can be 0 if muted by AudioService 1936 if (mICallback != null) { 1937 mICallback.linkToDeath(this, 0); 1938 } 1939 mDeathHandlers.add(this); 1940 // If the stream is not yet muted by any client, set lvel to 0 1941 if (muteCount() == 0) { 1942 setIndex(0, false); 1943 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, mStreamType, SENDMSG_NOOP, 0, 0, 1944 VolumeStreamState.this, 0); 1945 } 1946 } catch (RemoteException e) { 1947 // Client has died! 1948 binderDied(); 1949 mDeathHandlers.notify(); 1950 return; 1951 } 1952 } else { 1953 Log.w(TAG, "stream: "+mStreamType+" was already muted by this client"); 1954 } 1955 mMuteCount++; 1956 } else { 1957 if (mMuteCount == 0) { 1958 Log.e(TAG, "unexpected unmute for stream: "+mStreamType); 1959 } else { 1960 mMuteCount--; 1961 if (mMuteCount == 0) { 1962 // Unregistr from client death notification 1963 mDeathHandlers.remove(this); 1964 // mICallback can be 0 if muted by AudioService 1965 if (mICallback != null) { 1966 mICallback.unlinkToDeath(this, 0); 1967 } 1968 if (muteCount() == 0) { 1969 // If the stream is not muted any more, restore it's volume if 1970 // ringer mode allows it 1971 if (!isStreamAffectedByRingerMode(mStreamType) || mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 1972 setIndex(mLastAudibleIndex, false); 1973 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, mStreamType, SENDMSG_NOOP, 0, 0, 1974 VolumeStreamState.this, 0); 1975 } 1976 } 1977 } 1978 } 1979 } 1980 mDeathHandlers.notify(); 1981 } 1982 } 1983 1984 public void binderDied() { 1985 Log.w(TAG, "Volume service client died for stream: "+mStreamType); 1986 if (mMuteCount != 0) { 1987 // Reset all active mute requests from this client. 1988 mMuteCount = 1; 1989 mute(false); 1990 } 1991 } 1992 } 1993 1994 private int muteCount() { 1995 int count = 0; 1996 int size = mDeathHandlers.size(); 1997 for (int i = 0; i < size; i++) { 1998 count += mDeathHandlers.get(i).mMuteCount; 1999 } 2000 return count; 2001 } 2002 2003 private VolumeDeathHandler getDeathHandler(IBinder cb, boolean state) { 2004 synchronized(mDeathHandlers) { 2005 VolumeDeathHandler handler; 2006 int size = mDeathHandlers.size(); 2007 for (int i = 0; i < size; i++) { 2008 handler = mDeathHandlers.get(i); 2009 if (cb == handler.mICallback) { 2010 return handler; 2011 } 2012 } 2013 // If this is the first mute request for this client, create a new 2014 // client death handler. Otherwise, it is an out of sequence unmute request. 2015 if (state) { 2016 handler = new VolumeDeathHandler(cb); 2017 } else { 2018 Log.w(TAG, "stream was not muted by this client"); 2019 handler = null; 2020 } 2021 return handler; 2022 } 2023 } 2024 } 2025 2026 /** Thread that handles native AudioSystem control. */ 2027 private class AudioSystemThread extends Thread { 2028 AudioSystemThread() { 2029 super("AudioService"); 2030 } 2031 2032 @Override 2033 public void run() { 2034 // Set this thread up so the handler will work on it 2035 Looper.prepare(); 2036 2037 synchronized(AudioService.this) { 2038 mAudioHandler = new AudioHandler(); 2039 2040 // Notify that the handler has been created 2041 AudioService.this.notify(); 2042 } 2043 2044 // Listen for volume change requests that are set by VolumePanel 2045 Looper.loop(); 2046 } 2047 } 2048 2049 /** Handles internal volume messages in separate volume thread. */ 2050 private class AudioHandler extends Handler { 2051 2052 private void setSystemVolume(VolumeStreamState streamState) { 2053 2054 // Adjust volume 2055 setStreamVolumeIndex(streamState.mStreamType, streamState.mIndex); 2056 2057 // Apply change to all streams using this one as alias 2058 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2059 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2060 if (streamType != streamState.mStreamType && 2061 STREAM_VOLUME_ALIAS[streamType] == streamState.mStreamType) { 2062 setStreamVolumeIndex(streamType, mStreamStates[streamType].mIndex); 2063 } 2064 } 2065 2066 // Post a persist volume msg 2067 sendMsg(mAudioHandler, MSG_PERSIST_VOLUME, streamState.mStreamType, 2068 SENDMSG_REPLACE, 1, 1, streamState, PERSIST_DELAY); 2069 } 2070 2071 private void persistVolume(VolumeStreamState streamState, boolean current, boolean lastAudible) { 2072 if (current) { 2073 System.putInt(mContentResolver, streamState.mVolumeIndexSettingName, 2074 (streamState.mIndex + 5)/ 10); 2075 } 2076 if (lastAudible) { 2077 System.putInt(mContentResolver, streamState.mLastAudibleVolumeIndexSettingName, 2078 (streamState.mLastAudibleIndex + 5) / 10); 2079 } 2080 } 2081 2082 private void persistRingerMode() { 2083 System.putInt(mContentResolver, System.MODE_RINGER, mRingerMode); 2084 } 2085 2086 private void persistVibrateSetting() { 2087 System.putInt(mContentResolver, System.VIBRATE_ON, mVibrateSetting); 2088 } 2089 2090 private void playSoundEffect(int effectType, int volume) { 2091 synchronized (mSoundEffectsLock) { 2092 if (mSoundPool == null) { 2093 return; 2094 } 2095 float volFloat; 2096 // use default if volume is not specified by caller 2097 if (volume < 0) { 2098 volFloat = (float)Math.pow(10, SOUND_EFFECT_VOLUME_DB/20); 2099 } else { 2100 volFloat = (float) volume / 1000.0f; 2101 } 2102 2103 if (SOUND_EFFECT_FILES_MAP[effectType][1] > 0) { 2104 mSoundPool.play(SOUND_EFFECT_FILES_MAP[effectType][1], volFloat, volFloat, 0, 0, 1.0f); 2105 } else { 2106 MediaPlayer mediaPlayer = new MediaPlayer(); 2107 if (mediaPlayer != null) { 2108 try { 2109 String filePath = Environment.getRootDirectory() + SOUND_EFFECTS_PATH + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effectType][0]]; 2110 mediaPlayer.setDataSource(filePath); 2111 mediaPlayer.setAudioStreamType(AudioSystem.STREAM_SYSTEM); 2112 mediaPlayer.prepare(); 2113 mediaPlayer.setVolume(volFloat, volFloat); 2114 mediaPlayer.setOnCompletionListener(new OnCompletionListener() { 2115 public void onCompletion(MediaPlayer mp) { 2116 cleanupPlayer(mp); 2117 } 2118 }); 2119 mediaPlayer.setOnErrorListener(new OnErrorListener() { 2120 public boolean onError(MediaPlayer mp, int what, int extra) { 2121 cleanupPlayer(mp); 2122 return true; 2123 } 2124 }); 2125 mediaPlayer.start(); 2126 } catch (IOException ex) { 2127 Log.w(TAG, "MediaPlayer IOException: "+ex); 2128 } catch (IllegalArgumentException ex) { 2129 Log.w(TAG, "MediaPlayer IllegalArgumentException: "+ex); 2130 } catch (IllegalStateException ex) { 2131 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2132 } 2133 } 2134 } 2135 } 2136 } 2137 2138 private void onHandlePersistMediaButtonReceiver(ComponentName receiver) { 2139 Settings.System.putString(mContentResolver, Settings.System.MEDIA_BUTTON_RECEIVER, 2140 receiver == null ? "" : receiver.flattenToString()); 2141 } 2142 2143 private void cleanupPlayer(MediaPlayer mp) { 2144 if (mp != null) { 2145 try { 2146 mp.stop(); 2147 mp.release(); 2148 } catch (IllegalStateException ex) { 2149 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2150 } 2151 } 2152 } 2153 2154 private void setForceUse(int usage, int config) { 2155 AudioSystem.setForceUse(usage, config); 2156 } 2157 2158 @Override 2159 public void handleMessage(Message msg) { 2160 int baseMsgWhat = getMsgBase(msg.what); 2161 2162 switch (baseMsgWhat) { 2163 2164 case MSG_SET_SYSTEM_VOLUME: 2165 setSystemVolume((VolumeStreamState) msg.obj); 2166 break; 2167 2168 case MSG_PERSIST_VOLUME: 2169 persistVolume((VolumeStreamState) msg.obj, (msg.arg1 != 0), (msg.arg2 != 0)); 2170 break; 2171 2172 case MSG_PERSIST_RINGER_MODE: 2173 persistRingerMode(); 2174 break; 2175 2176 case MSG_PERSIST_VIBRATE_SETTING: 2177 persistVibrateSetting(); 2178 break; 2179 2180 case MSG_MEDIA_SERVER_DIED: 2181 if (!mMediaServerOk) { 2182 Log.e(TAG, "Media server died."); 2183 // Force creation of new IAudioFlinger interface so that we are notified 2184 // when new media_server process is back to life. 2185 AudioSystem.setErrorCallback(mAudioSystemCallback); 2186 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SHARED_MSG, SENDMSG_NOOP, 0, 0, 2187 null, 500); 2188 } 2189 break; 2190 2191 case MSG_MEDIA_SERVER_STARTED: 2192 Log.e(TAG, "Media server started."); 2193 // indicate to audio HAL that we start the reconfiguration phase after a media 2194 // server crash 2195 // Note that MSG_MEDIA_SERVER_STARTED message is only received when the media server 2196 // process restarts after a crash, not the first time it is started. 2197 AudioSystem.setParameters("restarting=true"); 2198 2199 // Restore device connection states 2200 Set set = mConnectedDevices.entrySet(); 2201 Iterator i = set.iterator(); 2202 while(i.hasNext()){ 2203 Map.Entry device = (Map.Entry)i.next(); 2204 AudioSystem.setDeviceConnectionState(((Integer)device.getKey()).intValue(), 2205 AudioSystem.DEVICE_STATE_AVAILABLE, 2206 (String)device.getValue()); 2207 } 2208 2209 // Restore call state 2210 AudioSystem.setPhoneState(mMode); 2211 2212 // Restore forced usage for communcations and record 2213 AudioSystem.setForceUse(AudioSystem.FOR_COMMUNICATION, mForcedUseForComm); 2214 AudioSystem.setForceUse(AudioSystem.FOR_RECORD, mForcedUseForComm); 2215 2216 // Restore stream volumes 2217 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2218 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2219 int index; 2220 VolumeStreamState streamState = mStreamStates[streamType]; 2221 AudioSystem.initStreamVolume(streamType, 0, (streamState.mIndexMax + 5) / 10); 2222 if (streamState.muteCount() == 0) { 2223 index = streamState.mIndex; 2224 } else { 2225 index = 0; 2226 } 2227 setStreamVolumeIndex(streamType, index); 2228 } 2229 2230 // Restore ringer mode 2231 setRingerModeInt(getRingerMode(), false); 2232 2233 // indicate the end of reconfiguration phase to audio HAL 2234 AudioSystem.setParameters("restarting=false"); 2235 break; 2236 2237 case MSG_LOAD_SOUND_EFFECTS: 2238 loadSoundEffects(); 2239 break; 2240 2241 case MSG_PLAY_SOUND_EFFECT: 2242 playSoundEffect(msg.arg1, msg.arg2); 2243 break; 2244 2245 case MSG_BTA2DP_DOCK_TIMEOUT: 2246 // msg.obj == address of BTA2DP device 2247 makeA2dpDeviceUnavailableNow( (String) msg.obj ); 2248 break; 2249 2250 case MSG_SET_FORCE_USE: 2251 setForceUse(msg.arg1, msg.arg2); 2252 break; 2253 2254 case MSG_PERSIST_MEDIABUTTONRECEIVER: 2255 onHandlePersistMediaButtonReceiver( (ComponentName) msg.obj ); 2256 break; 2257 2258 case MSG_RCDISPLAY_CLEAR: 2259 onRcDisplayClear(); 2260 break; 2261 2262 case MSG_RCDISPLAY_UPDATE: 2263 // msg.obj is guaranteed to be non null 2264 onRcDisplayUpdate( (RemoteControlStackEntry) msg.obj, msg.arg1); 2265 break; 2266 2267 case MSG_BT_HEADSET_CNCT_FAILED: 2268 resetBluetoothSco(); 2269 break; 2270 } 2271 } 2272 } 2273 2274 private class SettingsObserver extends ContentObserver { 2275 2276 SettingsObserver() { 2277 super(new Handler()); 2278 mContentResolver.registerContentObserver(Settings.System.getUriFor( 2279 Settings.System.MODE_RINGER_STREAMS_AFFECTED), false, this); 2280 } 2281 2282 @Override 2283 public void onChange(boolean selfChange) { 2284 super.onChange(selfChange); 2285 synchronized (mSettingsLock) { 2286 int ringerModeAffectedStreams = Settings.System.getInt(mContentResolver, 2287 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 2288 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 2289 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 2290 if (mVoiceCapable) { 2291 ringerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 2292 } else { 2293 ringerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 2294 } 2295 if (ringerModeAffectedStreams != mRingerModeAffectedStreams) { 2296 /* 2297 * Ensure all stream types that should be affected by ringer mode 2298 * are in the proper state. 2299 */ 2300 mRingerModeAffectedStreams = ringerModeAffectedStreams; 2301 setRingerModeInt(getRingerMode(), false); 2302 } 2303 } 2304 } 2305 } 2306 2307 private void makeA2dpDeviceAvailable(String address) { 2308 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2309 AudioSystem.DEVICE_STATE_AVAILABLE, 2310 address); 2311 // Reset A2DP suspend state each time a new sink is connected 2312 AudioSystem.setParameters("A2dpSuspended=false"); 2313 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP), 2314 address); 2315 } 2316 2317 private void makeA2dpDeviceUnavailableNow(String address) { 2318 Intent noisyIntent = new Intent(AudioManager.ACTION_AUDIO_BECOMING_NOISY); 2319 mContext.sendBroadcast(noisyIntent); 2320 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2321 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2322 address); 2323 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 2324 } 2325 2326 private void makeA2dpDeviceUnavailableLater(String address) { 2327 // prevent any activity on the A2DP audio output to avoid unwanted 2328 // reconnection of the sink. 2329 AudioSystem.setParameters("A2dpSuspended=true"); 2330 // the device will be made unavailable later, so consider it disconnected right away 2331 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 2332 // send the delayed message to make the device unavailable later 2333 Message msg = mAudioHandler.obtainMessage(MSG_BTA2DP_DOCK_TIMEOUT, address); 2334 mAudioHandler.sendMessageDelayed(msg, BTA2DP_DOCK_TIMEOUT_MILLIS); 2335 2336 } 2337 2338 private void cancelA2dpDeviceTimeout() { 2339 mAudioHandler.removeMessages(MSG_BTA2DP_DOCK_TIMEOUT); 2340 } 2341 2342 private boolean hasScheduledA2dpDockTimeout() { 2343 return mAudioHandler.hasMessages(MSG_BTA2DP_DOCK_TIMEOUT); 2344 } 2345 2346 /* cache of the address of the last dock the device was connected to */ 2347 private String mDockAddress; 2348 2349 /** 2350 * Receiver for misc intent broadcasts the Phone app cares about. 2351 */ 2352 private class AudioServiceBroadcastReceiver extends BroadcastReceiver { 2353 @Override 2354 public void onReceive(Context context, Intent intent) { 2355 String action = intent.getAction(); 2356 2357 if (action.equals(Intent.ACTION_DOCK_EVENT)) { 2358 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 2359 Intent.EXTRA_DOCK_STATE_UNDOCKED); 2360 int config; 2361 switch (dockState) { 2362 case Intent.EXTRA_DOCK_STATE_DESK: 2363 config = AudioSystem.FORCE_BT_DESK_DOCK; 2364 break; 2365 case Intent.EXTRA_DOCK_STATE_CAR: 2366 config = AudioSystem.FORCE_BT_CAR_DOCK; 2367 break; 2368 case Intent.EXTRA_DOCK_STATE_LE_DESK: 2369 config = AudioSystem.FORCE_ANALOG_DOCK; 2370 break; 2371 case Intent.EXTRA_DOCK_STATE_HE_DESK: 2372 config = AudioSystem.FORCE_DIGITAL_DOCK; 2373 break; 2374 case Intent.EXTRA_DOCK_STATE_UNDOCKED: 2375 default: 2376 config = AudioSystem.FORCE_NONE; 2377 } 2378 AudioSystem.setForceUse(AudioSystem.FOR_DOCK, config); 2379 } else if (action.equals(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED)) { 2380 int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 2381 BluetoothProfile.STATE_DISCONNECTED); 2382 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 2383 if (btDevice == null) { 2384 return; 2385 } 2386 String address = btDevice.getAddress(); 2387 if (!BluetoothAdapter.checkBluetoothAddress(address)) { 2388 address = ""; 2389 } 2390 boolean isConnected = 2391 (mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP) && 2392 mConnectedDevices.get(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP).equals(address)); 2393 2394 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 2395 if (btDevice.isBluetoothDock()) { 2396 if (state == BluetoothProfile.STATE_DISCONNECTED) { 2397 // introduction of a delay for transient disconnections of docks when 2398 // power is rapidly turned off/on, this message will be canceled if 2399 // we reconnect the dock under a preset delay 2400 makeA2dpDeviceUnavailableLater(address); 2401 // the next time isConnected is evaluated, it will be false for the dock 2402 } 2403 } else { 2404 makeA2dpDeviceUnavailableNow(address); 2405 } 2406 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 2407 if (btDevice.isBluetoothDock()) { 2408 // this could be a reconnection after a transient disconnection 2409 cancelA2dpDeviceTimeout(); 2410 mDockAddress = address; 2411 } else { 2412 // this could be a connection of another A2DP device before the timeout of 2413 // a dock: cancel the dock timeout, and make the dock unavailable now 2414 if(hasScheduledA2dpDockTimeout()) { 2415 cancelA2dpDeviceTimeout(); 2416 makeA2dpDeviceUnavailableNow(mDockAddress); 2417 } 2418 } 2419 makeA2dpDeviceAvailable(address); 2420 } 2421 } else if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) { 2422 int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 2423 BluetoothProfile.STATE_DISCONNECTED); 2424 int device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO; 2425 String address = null; 2426 2427 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 2428 if (btDevice == null) { 2429 return; 2430 } 2431 2432 address = btDevice.getAddress(); 2433 BluetoothClass btClass = btDevice.getBluetoothClass(); 2434 if (btClass != null) { 2435 switch (btClass.getDeviceClass()) { 2436 case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET: 2437 case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE: 2438 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 2439 break; 2440 case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO: 2441 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 2442 break; 2443 } 2444 } 2445 2446 if (!BluetoothAdapter.checkBluetoothAddress(address)) { 2447 address = ""; 2448 } 2449 boolean isConnected = (mConnectedDevices.containsKey(device) && 2450 mConnectedDevices.get(device).equals(address)); 2451 2452 synchronized (mScoClients) { 2453 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 2454 AudioSystem.setDeviceConnectionState(device, 2455 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2456 address); 2457 mConnectedDevices.remove(device); 2458 mBluetoothHeadsetDevice = null; 2459 resetBluetoothSco(); 2460 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 2461 AudioSystem.setDeviceConnectionState(device, 2462 AudioSystem.DEVICE_STATE_AVAILABLE, 2463 address); 2464 mConnectedDevices.put(new Integer(device), address); 2465 mBluetoothHeadsetDevice = btDevice; 2466 } 2467 } 2468 } else if (action.equals(Intent.ACTION_HEADSET_PLUG)) { 2469 int state = intent.getIntExtra("state", 0); 2470 int microphone = intent.getIntExtra("microphone", 0); 2471 2472 if (microphone != 0) { 2473 boolean isConnected = 2474 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_WIRED_HEADSET); 2475 if (state == 0 && isConnected) { 2476 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADSET, 2477 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2478 ""); 2479 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_WIRED_HEADSET); 2480 } else if (state == 1 && !isConnected) { 2481 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADSET, 2482 AudioSystem.DEVICE_STATE_AVAILABLE, 2483 ""); 2484 mConnectedDevices.put( 2485 new Integer(AudioSystem.DEVICE_OUT_WIRED_HEADSET), ""); 2486 } 2487 } else { 2488 boolean isConnected = 2489 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE); 2490 if (state == 0 && isConnected) { 2491 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE, 2492 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2493 ""); 2494 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE); 2495 } else if (state == 1 && !isConnected) { 2496 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE, 2497 AudioSystem.DEVICE_STATE_AVAILABLE, 2498 ""); 2499 mConnectedDevices.put( 2500 new Integer(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE), ""); 2501 } 2502 } 2503 } else if (action.equals(Intent.ACTION_USB_ANLG_HEADSET_PLUG)) { 2504 int state = intent.getIntExtra("state", 0); 2505 Log.v(TAG, "Broadcast Receiver: Got ACTION_USB_ANLG_HEADSET_PLUG, state = "+state); 2506 boolean isConnected = 2507 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET); 2508 if (state == 0 && isConnected) { 2509 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET, 2510 AudioSystem.DEVICE_STATE_UNAVAILABLE, ""); 2511 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET); 2512 } else if (state == 1 && !isConnected) { 2513 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET, 2514 AudioSystem.DEVICE_STATE_AVAILABLE, ""); 2515 mConnectedDevices.put( 2516 new Integer(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET), ""); 2517 } 2518 } else if (action.equals(Intent.ACTION_HDMI_AUDIO_PLUG)) { 2519 int state = intent.getIntExtra("state", 0); 2520 Log.v(TAG, "Broadcast Receiver: Got ACTION_HDMI_AUDIO_PLUG, state = "+state); 2521 boolean isConnected = 2522 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_AUX_DIGITAL); 2523 if (state == 0 && isConnected) { 2524 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_AUX_DIGITAL, 2525 AudioSystem.DEVICE_STATE_UNAVAILABLE, ""); 2526 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_AUX_DIGITAL); 2527 } else if (state == 1 && !isConnected) { 2528 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_AUX_DIGITAL, 2529 AudioSystem.DEVICE_STATE_AVAILABLE, ""); 2530 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_AUX_DIGITAL), ""); 2531 } 2532 } else if (action.equals(Intent.ACTION_USB_DGTL_HEADSET_PLUG)) { 2533 int state = intent.getIntExtra("state", 0); 2534 Log.v(TAG, "Broadcast Receiver: Got ACTION_USB_DGTL_HEADSET_PLUG, state = "+state); 2535 boolean isConnected = 2536 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET); 2537 if (state == 0 && isConnected) { 2538 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET, 2539 AudioSystem.DEVICE_STATE_UNAVAILABLE, ""); 2540 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET); 2541 } else if (state == 1 && !isConnected) { 2542 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET, 2543 AudioSystem.DEVICE_STATE_AVAILABLE, ""); 2544 mConnectedDevices.put( 2545 new Integer(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET), ""); 2546 } 2547 } else if (action.equals(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED)) { 2548 boolean broadcast = false; 2549 int state = AudioManager.SCO_AUDIO_STATE_ERROR; 2550 synchronized (mScoClients) { 2551 int btState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1); 2552 // broadcast intent if the connection was initated by AudioService 2553 if (!mScoClients.isEmpty() && 2554 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 2555 mScoAudioState == SCO_STATE_ACTIVATE_REQ || 2556 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 2557 broadcast = true; 2558 } 2559 switch (btState) { 2560 case BluetoothHeadset.STATE_AUDIO_CONNECTED: 2561 state = AudioManager.SCO_AUDIO_STATE_CONNECTED; 2562 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 2563 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 2564 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 2565 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 2566 } 2567 break; 2568 case BluetoothHeadset.STATE_AUDIO_DISCONNECTED: 2569 state = AudioManager.SCO_AUDIO_STATE_DISCONNECTED; 2570 mScoAudioState = SCO_STATE_INACTIVE; 2571 clearAllScoClients(0, false); 2572 break; 2573 case BluetoothHeadset.STATE_AUDIO_CONNECTING: 2574 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 2575 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 2576 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 2577 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 2578 } 2579 default: 2580 // do not broadcast CONNECTING or invalid state 2581 broadcast = false; 2582 break; 2583 } 2584 } 2585 if (broadcast) { 2586 broadcastScoConnectionState(state); 2587 //FIXME: this is to maintain compatibility with deprecated intent 2588 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 2589 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 2590 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 2591 mContext.sendStickyBroadcast(newIntent); 2592 } 2593 } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) { 2594 mBootCompleted = true; 2595 sendMsg(mAudioHandler, MSG_LOAD_SOUND_EFFECTS, SHARED_MSG, SENDMSG_NOOP, 2596 0, 0, null, 0); 2597 2598 mKeyguardManager = 2599 (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE); 2600 mScoConnectionState = AudioManager.SCO_AUDIO_STATE_ERROR; 2601 resetBluetoothSco(); 2602 getBluetoothHeadset(); 2603 //FIXME: this is to maintain compatibility with deprecated intent 2604 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 2605 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 2606 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, 2607 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 2608 mContext.sendStickyBroadcast(newIntent); 2609 } else if (action.equals(Intent.ACTION_PACKAGE_REMOVED)) { 2610 if (!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 2611 // a package is being removed, not replaced 2612 String packageName = intent.getData().getSchemeSpecificPart(); 2613 if (packageName != null) { 2614 removeMediaButtonReceiverForPackage(packageName); 2615 } 2616 } 2617 } else if (action.equals(Intent.ACTION_SCREEN_ON)) { 2618 AudioSystem.setParameters("screen_state=on"); 2619 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 2620 AudioSystem.setParameters("screen_state=off"); 2621 } 2622 } 2623 } 2624 2625 //========================================================================================== 2626 // AudioFocus 2627 //========================================================================================== 2628 2629 /* constant to identify focus stack entry that is used to hold the focus while the phone 2630 * is ringing or during a call 2631 */ 2632 private final static String IN_VOICE_COMM_FOCUS_ID = "AudioFocus_For_Phone_Ring_And_Calls"; 2633 2634 private final static Object mAudioFocusLock = new Object(); 2635 2636 private final static Object mRingingLock = new Object(); 2637 2638 private PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 2639 @Override 2640 public void onCallStateChanged(int state, String incomingNumber) { 2641 if (state == TelephonyManager.CALL_STATE_RINGING) { 2642 //Log.v(TAG, " CALL_STATE_RINGING"); 2643 synchronized(mRingingLock) { 2644 mIsRinging = true; 2645 } 2646 } else if ((state == TelephonyManager.CALL_STATE_OFFHOOK) 2647 || (state == TelephonyManager.CALL_STATE_IDLE)) { 2648 synchronized(mRingingLock) { 2649 mIsRinging = false; 2650 } 2651 } 2652 } 2653 }; 2654 2655 private void notifyTopOfAudioFocusStack() { 2656 // notify the top of the stack it gained focus 2657 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 2658 if (canReassignAudioFocus()) { 2659 try { 2660 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 2661 AudioManager.AUDIOFOCUS_GAIN, mFocusStack.peek().mClientId); 2662 } catch (RemoteException e) { 2663 Log.e(TAG, "Failure to signal gain of audio control focus due to "+ e); 2664 e.printStackTrace(); 2665 } 2666 } 2667 } 2668 } 2669 2670 private static class FocusStackEntry { 2671 public int mStreamType = -1;// no stream type 2672 public IAudioFocusDispatcher mFocusDispatcher = null; 2673 public IBinder mSourceRef = null; 2674 public String mClientId; 2675 public int mFocusChangeType; 2676 public AudioFocusDeathHandler mHandler; 2677 public String mPackageName; 2678 public int mCallingUid; 2679 2680 public FocusStackEntry() { 2681 } 2682 2683 public FocusStackEntry(int streamType, int duration, 2684 IAudioFocusDispatcher afl, IBinder source, String id, AudioFocusDeathHandler hdlr, 2685 String pn, int uid) { 2686 mStreamType = streamType; 2687 mFocusDispatcher = afl; 2688 mSourceRef = source; 2689 mClientId = id; 2690 mFocusChangeType = duration; 2691 mHandler = hdlr; 2692 mPackageName = pn; 2693 mCallingUid = uid; 2694 } 2695 2696 private void unlinkToDeath() { 2697 if (mSourceRef != null && mHandler != null) { 2698 mSourceRef.unlinkToDeath(mHandler, 0); 2699 } 2700 } 2701 2702 @Override 2703 protected void finalize() throws Throwable { 2704 try { 2705 unlinkToDeath(); 2706 } catch (java.util.NoSuchElementException e) { 2707 Log.w(TAG, e + " thrown by unlinkToDeath() during finalize, ignoring"); 2708 } finally { 2709 super.finalize(); 2710 } 2711 } 2712 } 2713 2714 private Stack<FocusStackEntry> mFocusStack = new Stack<FocusStackEntry>(); 2715 2716 /** 2717 * Helper function: 2718 * Display in the log the current entries in the audio focus stack 2719 */ 2720 private void dumpFocusStack(PrintWriter pw) { 2721 pw.println("\nAudio Focus stack entries:"); 2722 synchronized(mAudioFocusLock) { 2723 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2724 while(stackIterator.hasNext()) { 2725 FocusStackEntry fse = stackIterator.next(); 2726 pw.println(" source:" + fse.mSourceRef + " -- client: " + fse.mClientId 2727 + " -- duration: " + fse.mFocusChangeType 2728 + " -- uid: " + fse.mCallingUid); 2729 } 2730 } 2731 } 2732 2733 /** 2734 * Helper function: 2735 * Called synchronized on mAudioFocusLock 2736 * Remove a focus listener from the focus stack. 2737 * @param focusListenerToRemove the focus listener 2738 * @param signal if true and the listener was at the top of the focus stack, i.e. it was holding 2739 * focus, notify the next item in the stack it gained focus. 2740 */ 2741 private void removeFocusStackEntry(String clientToRemove, boolean signal) { 2742 // is the current top of the focus stack abandoning focus? (because of death or request) 2743 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientToRemove)) 2744 { 2745 //Log.i(TAG, " removeFocusStackEntry() removing top of stack"); 2746 mFocusStack.pop(); 2747 if (signal) { 2748 // notify the new top of the stack it gained focus 2749 notifyTopOfAudioFocusStack(); 2750 // there's a new top of the stack, let the remote control know 2751 synchronized(mRCStack) { 2752 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 2753 } 2754 } 2755 } else { 2756 // focus is abandoned by a client that's not at the top of the stack, 2757 // no need to update focus. 2758 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2759 while(stackIterator.hasNext()) { 2760 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 2761 if(fse.mClientId.equals(clientToRemove)) { 2762 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 2763 + fse.mClientId); 2764 stackIterator.remove(); 2765 } 2766 } 2767 } 2768 } 2769 2770 /** 2771 * Helper function: 2772 * Called synchronized on mAudioFocusLock 2773 * Remove focus listeners from the focus stack for a particular client. 2774 */ 2775 private void removeFocusStackEntryForClient(IBinder cb) { 2776 // is the owner of the audio focus part of the client to remove? 2777 boolean isTopOfStackForClientToRemove = !mFocusStack.isEmpty() && 2778 mFocusStack.peek().mSourceRef.equals(cb); 2779 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2780 while(stackIterator.hasNext()) { 2781 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 2782 if(fse.mSourceRef.equals(cb)) { 2783 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 2784 + fse.mClientId); 2785 stackIterator.remove(); 2786 } 2787 } 2788 if (isTopOfStackForClientToRemove) { 2789 // we removed an entry at the top of the stack: 2790 // notify the new top of the stack it gained focus. 2791 notifyTopOfAudioFocusStack(); 2792 // there's a new top of the stack, let the remote control know 2793 synchronized(mRCStack) { 2794 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 2795 } 2796 } 2797 } 2798 2799 /** 2800 * Helper function: 2801 * Returns true if the system is in a state where the focus can be reevaluated, false otherwise. 2802 */ 2803 private boolean canReassignAudioFocus() { 2804 // focus requests are rejected during a phone call or when the phone is ringing 2805 // this is equivalent to IN_VOICE_COMM_FOCUS_ID having the focus 2806 if (!mFocusStack.isEmpty() && IN_VOICE_COMM_FOCUS_ID.equals(mFocusStack.peek().mClientId)) { 2807 return false; 2808 } 2809 return true; 2810 } 2811 2812 /** 2813 * Inner class to monitor audio focus client deaths, and remove them from the audio focus 2814 * stack if necessary. 2815 */ 2816 private class AudioFocusDeathHandler implements IBinder.DeathRecipient { 2817 private IBinder mCb; // To be notified of client's death 2818 2819 AudioFocusDeathHandler(IBinder cb) { 2820 mCb = cb; 2821 } 2822 2823 public void binderDied() { 2824 synchronized(mAudioFocusLock) { 2825 Log.w(TAG, " AudioFocus audio focus client died"); 2826 removeFocusStackEntryForClient(mCb); 2827 } 2828 } 2829 2830 public IBinder getBinder() { 2831 return mCb; 2832 } 2833 } 2834 2835 2836 /** @see AudioManager#requestAudioFocus(IAudioFocusDispatcher, int, int) */ 2837 public int requestAudioFocus(int mainStreamType, int focusChangeHint, IBinder cb, 2838 IAudioFocusDispatcher fd, String clientId, String callingPackageName) { 2839 Log.i(TAG, " AudioFocus requestAudioFocus() from " + clientId); 2840 // the main stream type for the audio focus request is currently not used. It may 2841 // potentially be used to handle multiple stream type-dependent audio focuses. 2842 2843 // we need a valid binder callback for clients 2844 if (!cb.pingBinder()) { 2845 Log.e(TAG, " AudioFocus DOA client for requestAudioFocus(), aborting."); 2846 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2847 } 2848 2849 synchronized(mAudioFocusLock) { 2850 if (!canReassignAudioFocus()) { 2851 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2852 } 2853 2854 // handle the potential premature death of the new holder of the focus 2855 // (premature death == death before abandoning focus) 2856 // Register for client death notification 2857 AudioFocusDeathHandler afdh = new AudioFocusDeathHandler(cb); 2858 try { 2859 cb.linkToDeath(afdh, 0); 2860 } catch (RemoteException e) { 2861 // client has already died! 2862 Log.w(TAG, "AudioFocus requestAudioFocus() could not link to "+cb+" binder death"); 2863 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2864 } 2865 2866 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientId)) { 2867 // if focus is already owned by this client and the reason for acquiring the focus 2868 // hasn't changed, don't do anything 2869 if (mFocusStack.peek().mFocusChangeType == focusChangeHint) { 2870 // unlink death handler so it can be gc'ed. 2871 // linkToDeath() creates a JNI global reference preventing collection. 2872 cb.unlinkToDeath(afdh, 0); 2873 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2874 } 2875 // the reason for the audio focus request has changed: remove the current top of 2876 // stack and respond as if we had a new focus owner 2877 mFocusStack.pop(); 2878 } 2879 2880 // notify current top of stack it is losing focus 2881 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 2882 try { 2883 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 2884 -1 * focusChangeHint, // loss and gain codes are inverse of each other 2885 mFocusStack.peek().mClientId); 2886 } catch (RemoteException e) { 2887 Log.e(TAG, " Failure to signal loss of focus due to "+ e); 2888 e.printStackTrace(); 2889 } 2890 } 2891 2892 // focus requester might already be somewhere below in the stack, remove it 2893 removeFocusStackEntry(clientId, false /* signal */); 2894 2895 // push focus requester at the top of the audio focus stack 2896 mFocusStack.push(new FocusStackEntry(mainStreamType, focusChangeHint, fd, cb, 2897 clientId, afdh, callingPackageName, Binder.getCallingUid())); 2898 2899 // there's a new top of the stack, let the remote control know 2900 synchronized(mRCStack) { 2901 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 2902 } 2903 }//synchronized(mAudioFocusLock) 2904 2905 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2906 } 2907 2908 /** @see AudioManager#abandonAudioFocus(IAudioFocusDispatcher) */ 2909 public int abandonAudioFocus(IAudioFocusDispatcher fl, String clientId) { 2910 Log.i(TAG, " AudioFocus abandonAudioFocus() from " + clientId); 2911 try { 2912 // this will take care of notifying the new focus owner if needed 2913 synchronized(mAudioFocusLock) { 2914 removeFocusStackEntry(clientId, true); 2915 } 2916 } catch (java.util.ConcurrentModificationException cme) { 2917 // Catching this exception here is temporary. It is here just to prevent 2918 // a crash seen when the "Silent" notification is played. This is believed to be fixed 2919 // but this try catch block is left just to be safe. 2920 Log.e(TAG, "FATAL EXCEPTION AudioFocus abandonAudioFocus() caused " + cme); 2921 cme.printStackTrace(); 2922 } 2923 2924 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2925 } 2926 2927 2928 public void unregisterAudioFocusClient(String clientId) { 2929 synchronized(mAudioFocusLock) { 2930 removeFocusStackEntry(clientId, false); 2931 } 2932 } 2933 2934 2935 //========================================================================================== 2936 // RemoteControl 2937 //========================================================================================== 2938 /** 2939 * Receiver for media button intents. Handles the dispatching of the media button event 2940 * to one of the registered listeners, or if there was none, resumes the intent broadcast 2941 * to the rest of the system. 2942 */ 2943 private class MediaButtonBroadcastReceiver extends BroadcastReceiver { 2944 @Override 2945 public void onReceive(Context context, Intent intent) { 2946 String action = intent.getAction(); 2947 if (!Intent.ACTION_MEDIA_BUTTON.equals(action)) { 2948 return; 2949 } 2950 KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT); 2951 if (event != null) { 2952 // if in a call or ringing, do not break the current phone app behavior 2953 // TODO modify this to let the phone app specifically get the RC focus 2954 // add modify the phone app to take advantage of the new API 2955 synchronized(mRingingLock) { 2956 if (mIsRinging || (getMode() == AudioSystem.MODE_IN_CALL) || 2957 (getMode() == AudioSystem.MODE_IN_COMMUNICATION) || 2958 (getMode() == AudioSystem.MODE_RINGTONE) ) { 2959 return; 2960 } 2961 } 2962 synchronized(mRCStack) { 2963 if (!mRCStack.empty()) { 2964 // create a new intent to fill in the extras of the registered PendingIntent 2965 Intent targetedIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); 2966 Bundle extras = intent.getExtras(); 2967 if (extras != null) { 2968 targetedIntent.putExtras(extras); 2969 // trap the current broadcast 2970 abortBroadcast(); 2971 //Log.v(TAG, " Sending intent" + targetedIntent); 2972 // send the intent that was registered by the client 2973 try { 2974 mRCStack.peek().mMediaIntent.send(context, 0, targetedIntent); 2975 } catch (CanceledException e) { 2976 Log.e(TAG, "Error sending pending intent " + mRCStack.peek()); 2977 e.printStackTrace(); 2978 } 2979 } 2980 } 2981 } 2982 } 2983 } 2984 } 2985 2986 private final Object mCurrentRcLock = new Object(); 2987 /** 2988 * The one remote control client which will receive a request for display information. 2989 * This object may be null. 2990 * Access protected by mCurrentRcLock. 2991 */ 2992 private IRemoteControlClient mCurrentRcClient = null; 2993 2994 private final static int RC_INFO_NONE = 0; 2995 private final static int RC_INFO_ALL = 2996 RemoteControlClient.FLAG_INFORMATION_REQUEST_ALBUM_ART | 2997 RemoteControlClient.FLAG_INFORMATION_REQUEST_KEY_MEDIA | 2998 RemoteControlClient.FLAG_INFORMATION_REQUEST_METADATA | 2999 RemoteControlClient.FLAG_INFORMATION_REQUEST_PLAYSTATE; 3000 3001 /** 3002 * A monotonically increasing generation counter for mCurrentRcClient. 3003 * Only accessed with a lock on mCurrentRcLock. 3004 * No value wrap-around issues as we only act on equal values. 3005 */ 3006 private int mCurrentRcClientGen = 0; 3007 3008 /** 3009 * Inner class to monitor remote control client deaths, and remove the client for the 3010 * remote control stack if necessary. 3011 */ 3012 private class RcClientDeathHandler implements IBinder.DeathRecipient { 3013 private IBinder mCb; // To be notified of client's death 3014 private PendingIntent mMediaIntent; 3015 3016 RcClientDeathHandler(IBinder cb, PendingIntent pi) { 3017 mCb = cb; 3018 mMediaIntent = pi; 3019 } 3020 3021 public void binderDied() { 3022 Log.w(TAG, " RemoteControlClient died"); 3023 // remote control client died, make sure the displays don't use it anymore 3024 // by setting its remote control client to null 3025 registerRemoteControlClient(mMediaIntent, null/*rcClient*/, null/*ignored*/); 3026 } 3027 3028 public IBinder getBinder() { 3029 return mCb; 3030 } 3031 } 3032 3033 private static class RemoteControlStackEntry { 3034 /** 3035 * The target for the ACTION_MEDIA_BUTTON events. 3036 * Always non null. 3037 */ 3038 public PendingIntent mMediaIntent; 3039 /** 3040 * The registered media button event receiver. 3041 * Always non null. 3042 */ 3043 public ComponentName mReceiverComponent; 3044 public String mCallingPackageName; 3045 public int mCallingUid; 3046 /** 3047 * Provides access to the information to display on the remote control. 3048 * May be null (when a media button event receiver is registered, 3049 * but no remote control client has been registered) */ 3050 public IRemoteControlClient mRcClient; 3051 public RcClientDeathHandler mRcClientDeathHandler; 3052 3053 /** precondition: mediaIntent != null, eventReceiver != null */ 3054 public RemoteControlStackEntry(PendingIntent mediaIntent, ComponentName eventReceiver) { 3055 mMediaIntent = mediaIntent; 3056 mReceiverComponent = eventReceiver; 3057 mCallingUid = -1; 3058 mRcClient = null; 3059 } 3060 3061 public void unlinkToRcClientDeath() { 3062 if ((mRcClientDeathHandler != null) && (mRcClientDeathHandler.mCb != null)) { 3063 try { 3064 mRcClientDeathHandler.mCb.unlinkToDeath(mRcClientDeathHandler, 0); 3065 } catch (java.util.NoSuchElementException e) { 3066 // not much we can do here 3067 Log.e(TAG, "Encountered " + e + " in unlinkToRcClientDeath()"); 3068 e.printStackTrace(); 3069 } 3070 } 3071 } 3072 } 3073 3074 /** 3075 * The stack of remote control event receivers. 3076 * Code sections and methods that modify the remote control event receiver stack are 3077 * synchronized on mRCStack, but also BEFORE on mFocusLock as any change in either 3078 * stack, audio focus or RC, can lead to a change in the remote control display 3079 */ 3080 private Stack<RemoteControlStackEntry> mRCStack = new Stack<RemoteControlStackEntry>(); 3081 3082 /** 3083 * Helper function: 3084 * Display in the log the current entries in the remote control focus stack 3085 */ 3086 private void dumpRCStack(PrintWriter pw) { 3087 pw.println("\nRemote Control stack entries:"); 3088 synchronized(mRCStack) { 3089 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3090 while(stackIterator.hasNext()) { 3091 RemoteControlStackEntry rcse = stackIterator.next(); 3092 pw.println(" pi: " + rcse.mMediaIntent + 3093 " -- ercvr: " + rcse.mReceiverComponent + 3094 " -- client: " + rcse.mRcClient + 3095 " -- uid: " + rcse.mCallingUid); 3096 } 3097 } 3098 } 3099 3100 /** 3101 * Helper function: 3102 * Remove any entry in the remote control stack that has the same package name as packageName 3103 * Pre-condition: packageName != null 3104 */ 3105 private void removeMediaButtonReceiverForPackage(String packageName) { 3106 synchronized(mRCStack) { 3107 if (mRCStack.empty()) { 3108 return; 3109 } else { 3110 RemoteControlStackEntry oldTop = mRCStack.peek(); 3111 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3112 // iterate over the stack entries 3113 while(stackIterator.hasNext()) { 3114 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 3115 if (packageName.equalsIgnoreCase(rcse.mReceiverComponent.getPackageName())) { 3116 // a stack entry is from the package being removed, remove it from the stack 3117 stackIterator.remove(); 3118 } 3119 } 3120 if (mRCStack.empty()) { 3121 // no saved media button receiver 3122 mAudioHandler.sendMessage( 3123 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 3124 null)); 3125 } else if (oldTop != mRCStack.peek()) { 3126 // the top of the stack has changed, save it in the system settings 3127 // by posting a message to persist it 3128 mAudioHandler.sendMessage( 3129 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 3130 mRCStack.peek().mReceiverComponent)); 3131 } 3132 } 3133 } 3134 } 3135 3136 /** 3137 * Helper function: 3138 * Restore remote control receiver from the system settings. 3139 */ 3140 private void restoreMediaButtonReceiver() { 3141 String receiverName = Settings.System.getString(mContentResolver, 3142 Settings.System.MEDIA_BUTTON_RECEIVER); 3143 if ((null != receiverName) && !receiverName.isEmpty()) { 3144 ComponentName eventReceiver = ComponentName.unflattenFromString(receiverName); 3145 // construct a PendingIntent targeted to the restored component name 3146 // for the media button and register it 3147 Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); 3148 // the associated intent will be handled by the component being registered 3149 mediaButtonIntent.setComponent(eventReceiver); 3150 PendingIntent pi = PendingIntent.getBroadcast(mContext, 3151 0/*requestCode, ignored*/, mediaButtonIntent, 0/*flags*/); 3152 registerMediaButtonIntent(pi, eventReceiver); 3153 } 3154 } 3155 3156 /** 3157 * Helper function: 3158 * Set the new remote control receiver at the top of the RC focus stack. 3159 * precondition: mediaIntent != null, target != null 3160 */ 3161 private void pushMediaButtonReceiver(PendingIntent mediaIntent, ComponentName target) { 3162 // already at top of stack? 3163 if (!mRCStack.empty() && mRCStack.peek().mMediaIntent.equals(mediaIntent)) { 3164 return; 3165 } 3166 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3167 RemoteControlStackEntry rcse = null; 3168 boolean wasInsideStack = false; 3169 while(stackIterator.hasNext()) { 3170 rcse = (RemoteControlStackEntry)stackIterator.next(); 3171 if(rcse.mMediaIntent.equals(mediaIntent)) { 3172 wasInsideStack = true; 3173 stackIterator.remove(); 3174 break; 3175 } 3176 } 3177 if (!wasInsideStack) { 3178 rcse = new RemoteControlStackEntry(mediaIntent, target); 3179 } 3180 mRCStack.push(rcse); 3181 3182 // post message to persist the default media button receiver 3183 mAudioHandler.sendMessage( mAudioHandler.obtainMessage( 3184 MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, target/*obj*/) ); 3185 } 3186 3187 /** 3188 * Helper function: 3189 * Remove the remote control receiver from the RC focus stack. 3190 * precondition: pi != null 3191 */ 3192 private void removeMediaButtonReceiver(PendingIntent pi) { 3193 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3194 while(stackIterator.hasNext()) { 3195 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 3196 if(rcse.mMediaIntent.equals(pi)) { 3197 stackIterator.remove(); 3198 break; 3199 } 3200 } 3201 } 3202 3203 /** 3204 * Helper function: 3205 * Called synchronized on mRCStack 3206 */ 3207 private boolean isCurrentRcController(PendingIntent pi) { 3208 if (!mRCStack.empty() && mRCStack.peek().mMediaIntent.equals(pi)) { 3209 return true; 3210 } 3211 return false; 3212 } 3213 3214 //========================================================================================== 3215 // Remote control display / client 3216 //========================================================================================== 3217 /** 3218 * Update the remote control displays with the new "focused" client generation 3219 */ 3220 private void setNewRcClientOnDisplays_syncRcsCurrc(int newClientGeneration, 3221 PendingIntent newMediaIntent, boolean clearing) { 3222 // NOTE: Only one IRemoteControlDisplay supported in this implementation 3223 if (mRcDisplay != null) { 3224 try { 3225 mRcDisplay.setCurrentClientId( 3226 newClientGeneration, newMediaIntent, clearing); 3227 } catch (RemoteException e) { 3228 Log.e(TAG, "Dead display in setNewRcClientOnDisplays_syncRcsCurrc() "+e); 3229 // if we had a display before, stop monitoring its death 3230 rcDisplay_stopDeathMonitor_syncRcStack(); 3231 mRcDisplay = null; 3232 } 3233 } 3234 } 3235 3236 /** 3237 * Update the remote control clients with the new "focused" client generation 3238 */ 3239 private void setNewRcClientGenerationOnClients_syncRcsCurrc(int newClientGeneration) { 3240 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3241 while(stackIterator.hasNext()) { 3242 RemoteControlStackEntry se = stackIterator.next(); 3243 if ((se != null) && (se.mRcClient != null)) { 3244 try { 3245 se.mRcClient.setCurrentClientGenerationId(newClientGeneration); 3246 } catch (RemoteException e) { 3247 Log.w(TAG, "Dead client in setNewRcClientGenerationOnClients_syncRcsCurrc()"+e); 3248 stackIterator.remove(); 3249 se.unlinkToRcClientDeath(); 3250 } 3251 } 3252 } 3253 } 3254 3255 /** 3256 * Update the displays and clients with the new "focused" client generation and name 3257 * @param newClientGeneration the new generation value matching a client update 3258 * @param newClientEventReceiver the media button event receiver associated with the client. 3259 * May be null, which implies there is no registered media button event receiver. 3260 * @param clearing true if the new client generation value maps to a remote control update 3261 * where the display should be cleared. 3262 */ 3263 private void setNewRcClient_syncRcsCurrc(int newClientGeneration, 3264 PendingIntent newMediaIntent, boolean clearing) { 3265 // send the new valid client generation ID to all displays 3266 setNewRcClientOnDisplays_syncRcsCurrc(newClientGeneration, newMediaIntent, clearing); 3267 // send the new valid client generation ID to all clients 3268 setNewRcClientGenerationOnClients_syncRcsCurrc(newClientGeneration); 3269 } 3270 3271 /** 3272 * Called when processing MSG_RCDISPLAY_CLEAR event 3273 */ 3274 private void onRcDisplayClear() { 3275 if (DEBUG_RC) Log.i(TAG, "Clear remote control display"); 3276 3277 synchronized(mRCStack) { 3278 synchronized(mCurrentRcLock) { 3279 mCurrentRcClientGen++; 3280 // synchronously update the displays and clients with the new client generation 3281 setNewRcClient_syncRcsCurrc(mCurrentRcClientGen, 3282 null /*newMediaIntent*/, true /*clearing*/); 3283 } 3284 } 3285 } 3286 3287 /** 3288 * Called when processing MSG_RCDISPLAY_UPDATE event 3289 */ 3290 private void onRcDisplayUpdate(RemoteControlStackEntry rcse, int flags /* USED ?*/) { 3291 synchronized(mRCStack) { 3292 synchronized(mCurrentRcLock) { 3293 if ((mCurrentRcClient != null) && (mCurrentRcClient.equals(rcse.mRcClient))) { 3294 if (DEBUG_RC) Log.i(TAG, "Display/update remote control "); 3295 3296 mCurrentRcClientGen++; 3297 // synchronously update the displays and clients with 3298 // the new client generation 3299 setNewRcClient_syncRcsCurrc(mCurrentRcClientGen, 3300 rcse.mMediaIntent /*newMediaIntent*/, 3301 false /*clearing*/); 3302 3303 // tell the current client that it needs to send info 3304 try { 3305 mCurrentRcClient.onInformationRequested(mCurrentRcClientGen, 3306 flags, mArtworkExpectedWidth, mArtworkExpectedHeight); 3307 } catch (RemoteException e) { 3308 Log.e(TAG, "Current valid remote client is dead: "+e); 3309 mCurrentRcClient = null; 3310 } 3311 } else { 3312 // the remote control display owner has changed between the 3313 // the message to update the display was sent, and the time it 3314 // gets to be processed (now) 3315 } 3316 } 3317 } 3318 } 3319 3320 3321 /** 3322 * Helper function: 3323 * Called synchronized on mRCStack 3324 */ 3325 private void clearRemoteControlDisplay_syncAfRcs() { 3326 synchronized(mCurrentRcLock) { 3327 mCurrentRcClient = null; 3328 } 3329 // will cause onRcDisplayClear() to be called in AudioService's handler thread 3330 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_CLEAR) ); 3331 } 3332 3333 /** 3334 * Helper function for code readability: only to be called from 3335 * checkUpdateRemoteControlDisplay_syncAfRcs() which checks the preconditions for 3336 * this method. 3337 * Preconditions: 3338 * - called synchronized mAudioFocusLock then on mRCStack 3339 * - mRCStack.isEmpty() is false 3340 */ 3341 private void updateRemoteControlDisplay_syncAfRcs(int infoChangedFlags) { 3342 RemoteControlStackEntry rcse = mRCStack.peek(); 3343 int infoFlagsAboutToBeUsed = infoChangedFlags; 3344 // this is where we enforce opt-in for information display on the remote controls 3345 // with the new AudioManager.registerRemoteControlClient() API 3346 if (rcse.mRcClient == null) { 3347 //Log.w(TAG, "Can't update remote control display with null remote control client"); 3348 clearRemoteControlDisplay_syncAfRcs(); 3349 return; 3350 } 3351 synchronized(mCurrentRcLock) { 3352 if (!rcse.mRcClient.equals(mCurrentRcClient)) { 3353 // new RC client, assume every type of information shall be queried 3354 infoFlagsAboutToBeUsed = RC_INFO_ALL; 3355 } 3356 mCurrentRcClient = rcse.mRcClient; 3357 } 3358 // will cause onRcDisplayUpdate() to be called in AudioService's handler thread 3359 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_UPDATE, 3360 infoFlagsAboutToBeUsed /* arg1 */, 0, rcse /* obj, != null */) ); 3361 } 3362 3363 /** 3364 * Helper function: 3365 * Called synchronized on mAudioFocusLock, then mRCStack 3366 * Check whether the remote control display should be updated, triggers the update if required 3367 * @param infoChangedFlags the flags corresponding to the remote control client information 3368 * that has changed, if applicable (checking for the update conditions might trigger a 3369 * clear, rather than an update event). 3370 */ 3371 private void checkUpdateRemoteControlDisplay_syncAfRcs(int infoChangedFlags) { 3372 // determine whether the remote control display should be refreshed 3373 // if either stack is empty, there is a mismatch, so clear the RC display 3374 if (mRCStack.isEmpty() || mFocusStack.isEmpty()) { 3375 clearRemoteControlDisplay_syncAfRcs(); 3376 return; 3377 } 3378 // if the top of the two stacks belong to different packages, there is a mismatch, clear 3379 if ((mRCStack.peek().mCallingPackageName != null) 3380 && (mFocusStack.peek().mPackageName != null) 3381 && !(mRCStack.peek().mCallingPackageName.compareTo( 3382 mFocusStack.peek().mPackageName) == 0)) { 3383 clearRemoteControlDisplay_syncAfRcs(); 3384 return; 3385 } 3386 // if the audio focus didn't originate from the same Uid as the one in which the remote 3387 // control information will be retrieved, clear 3388 if (mRCStack.peek().mCallingUid != mFocusStack.peek().mCallingUid) { 3389 clearRemoteControlDisplay_syncAfRcs(); 3390 return; 3391 } 3392 // refresh conditions were verified: update the remote controls 3393 // ok to call: synchronized mAudioFocusLock then on mRCStack, mRCStack is not empty 3394 updateRemoteControlDisplay_syncAfRcs(infoChangedFlags); 3395 } 3396 3397 /** 3398 * see AudioManager.registerMediaButtonIntent(PendingIntent pi, ComponentName c) 3399 * precondition: mediaIntent != null, target != null 3400 */ 3401 public void registerMediaButtonIntent(PendingIntent mediaIntent, ComponentName eventReceiver) { 3402 Log.i(TAG, " Remote Control registerMediaButtonIntent() for " + mediaIntent); 3403 3404 synchronized(mAudioFocusLock) { 3405 synchronized(mRCStack) { 3406 pushMediaButtonReceiver(mediaIntent, eventReceiver); 3407 // new RC client, assume every type of information shall be queried 3408 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3409 } 3410 } 3411 } 3412 3413 /** 3414 * see AudioManager.unregisterMediaButtonIntent(PendingIntent mediaIntent) 3415 * precondition: mediaIntent != null, eventReceiver != null 3416 */ 3417 public void unregisterMediaButtonIntent(PendingIntent mediaIntent, ComponentName eventReceiver) 3418 { 3419 Log.i(TAG, " Remote Control unregisterMediaButtonIntent() for " + mediaIntent); 3420 3421 synchronized(mAudioFocusLock) { 3422 synchronized(mRCStack) { 3423 boolean topOfStackWillChange = isCurrentRcController(mediaIntent); 3424 removeMediaButtonReceiver(mediaIntent); 3425 if (topOfStackWillChange) { 3426 // current RC client will change, assume every type of info needs to be queried 3427 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3428 } 3429 } 3430 } 3431 } 3432 3433 /** 3434 * see AudioManager.registerRemoteControlClient(ComponentName eventReceiver, ...) 3435 * Note: using this method with rcClient == null is a way to "disable" the IRemoteControlClient 3436 * without modifying the RC stack, but while still causing the display to refresh (will 3437 * become blank as a result of this) 3438 */ 3439 public void registerRemoteControlClient(PendingIntent mediaIntent, 3440 IRemoteControlClient rcClient, String callingPackageName) { 3441 if (DEBUG_RC) Log.i(TAG, "Register remote control client rcClient="+rcClient); 3442 synchronized(mAudioFocusLock) { 3443 synchronized(mRCStack) { 3444 // store the new display information 3445 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3446 while(stackIterator.hasNext()) { 3447 RemoteControlStackEntry rcse = stackIterator.next(); 3448 if(rcse.mMediaIntent.equals(mediaIntent)) { 3449 // already had a remote control client? 3450 if (rcse.mRcClientDeathHandler != null) { 3451 // stop monitoring the old client's death 3452 rcse.unlinkToRcClientDeath(); 3453 } 3454 // save the new remote control client 3455 rcse.mRcClient = rcClient; 3456 rcse.mCallingPackageName = callingPackageName; 3457 rcse.mCallingUid = Binder.getCallingUid(); 3458 if (rcClient == null) { 3459 rcse.mRcClientDeathHandler = null; 3460 break; 3461 } 3462 3463 // there is a new (non-null) client: 3464 // 1/ give the new client the current display (if any) 3465 if (mRcDisplay != null) { 3466 try { 3467 rcse.mRcClient.plugRemoteControlDisplay(mRcDisplay); 3468 } catch (RemoteException e) { 3469 Log.e(TAG, "Error connecting remote control display to client: "+e); 3470 e.printStackTrace(); 3471 } 3472 } 3473 // 2/ monitor the new client's death 3474 IBinder b = rcse.mRcClient.asBinder(); 3475 RcClientDeathHandler rcdh = 3476 new RcClientDeathHandler(b, rcse.mMediaIntent); 3477 try { 3478 b.linkToDeath(rcdh, 0); 3479 } catch (RemoteException e) { 3480 // remote control client is DOA, disqualify it 3481 Log.w(TAG, "registerRemoteControlClient() has a dead client " + b); 3482 rcse.mRcClient = null; 3483 } 3484 rcse.mRcClientDeathHandler = rcdh; 3485 break; 3486 } 3487 } 3488 // if the eventReceiver is at the top of the stack 3489 // then check for potential refresh of the remote controls 3490 if (isCurrentRcController(mediaIntent)) { 3491 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3492 } 3493 } 3494 } 3495 } 3496 3497 /** 3498 * see AudioManager.unregisterRemoteControlClient(PendingIntent pi, ...) 3499 * rcClient is guaranteed non-null 3500 */ 3501 public void unregisterRemoteControlClient(PendingIntent mediaIntent, 3502 IRemoteControlClient rcClient) { 3503 synchronized(mAudioFocusLock) { 3504 synchronized(mRCStack) { 3505 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3506 while(stackIterator.hasNext()) { 3507 RemoteControlStackEntry rcse = stackIterator.next(); 3508 if ((rcse.mMediaIntent.equals(mediaIntent)) 3509 && rcClient.equals(rcse.mRcClient)) { 3510 // we found the IRemoteControlClient to unregister 3511 // stop monitoring its death 3512 rcse.unlinkToRcClientDeath(); 3513 // reset the client-related fields 3514 rcse.mRcClient = null; 3515 rcse.mRcClientDeathHandler = null; 3516 rcse.mCallingPackageName = null; 3517 } 3518 } 3519 } 3520 } 3521 } 3522 3523 /** 3524 * The remote control displays. 3525 * Access synchronized on mRCStack 3526 * NOTE: Only one IRemoteControlDisplay supported in this implementation 3527 */ 3528 private IRemoteControlDisplay mRcDisplay; 3529 private RcDisplayDeathHandler mRcDisplayDeathHandler; 3530 private int mArtworkExpectedWidth = -1; 3531 private int mArtworkExpectedHeight = -1; 3532 /** 3533 * Inner class to monitor remote control display deaths, and unregister them from the list 3534 * of displays if necessary. 3535 */ 3536 private class RcDisplayDeathHandler implements IBinder.DeathRecipient { 3537 private IBinder mCb; // To be notified of client's death 3538 3539 public RcDisplayDeathHandler(IBinder b) { 3540 if (DEBUG_RC) Log.i(TAG, "new RcDisplayDeathHandler for "+b); 3541 mCb = b; 3542 } 3543 3544 public void binderDied() { 3545 synchronized(mRCStack) { 3546 Log.w(TAG, "RemoteControl: display died"); 3547 mRcDisplay = null; 3548 } 3549 } 3550 3551 public void unlinkToRcDisplayDeath() { 3552 if (DEBUG_RC) Log.i(TAG, "unlinkToRcDisplayDeath for "+mCb); 3553 try { 3554 mCb.unlinkToDeath(this, 0); 3555 } catch (java.util.NoSuchElementException e) { 3556 // not much we can do here, the display was being unregistered anyway 3557 Log.e(TAG, "Encountered " + e + " in unlinkToRcDisplayDeath()"); 3558 e.printStackTrace(); 3559 } 3560 } 3561 3562 } 3563 3564 private void rcDisplay_stopDeathMonitor_syncRcStack() { 3565 if (mRcDisplay != null) { // implies (mRcDisplayDeathHandler != null) 3566 // we had a display before, stop monitoring its death 3567 mRcDisplayDeathHandler.unlinkToRcDisplayDeath(); 3568 } 3569 } 3570 3571 private void rcDisplay_startDeathMonitor_syncRcStack() { 3572 if (mRcDisplay != null) { 3573 // new non-null display, monitor its death 3574 IBinder b = mRcDisplay.asBinder(); 3575 mRcDisplayDeathHandler = new RcDisplayDeathHandler(b); 3576 try { 3577 b.linkToDeath(mRcDisplayDeathHandler, 0); 3578 } catch (RemoteException e) { 3579 // remote control display is DOA, disqualify it 3580 Log.w(TAG, "registerRemoteControlDisplay() has a dead client " + b); 3581 mRcDisplay = null; 3582 } 3583 } 3584 } 3585 3586 /** 3587 * Register an IRemoteControlDisplay. 3588 * Notify all IRemoteControlClient of the new display and cause the RemoteControlClient 3589 * at the top of the stack to update the new display with its information. 3590 * Since only one IRemoteControlDisplay is supported, this will unregister the previous display. 3591 * @param rcd the IRemoteControlDisplay to register. No effect if null. 3592 */ 3593 public void registerRemoteControlDisplay(IRemoteControlDisplay rcd) { 3594 if (DEBUG_RC) Log.d(TAG, ">>> registerRemoteControlDisplay("+rcd+")"); 3595 synchronized(mAudioFocusLock) { 3596 synchronized(mRCStack) { 3597 if ((mRcDisplay == rcd) || (rcd == null)) { 3598 return; 3599 } 3600 // if we had a display before, stop monitoring its death 3601 rcDisplay_stopDeathMonitor_syncRcStack(); 3602 mRcDisplay = rcd; 3603 // new display, start monitoring its death 3604 rcDisplay_startDeathMonitor_syncRcStack(); 3605 3606 // let all the remote control clients there is a new display 3607 // no need to unplug the previous because we only support one display 3608 // and the clients don't track the death of the display 3609 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3610 while(stackIterator.hasNext()) { 3611 RemoteControlStackEntry rcse = stackIterator.next(); 3612 if(rcse.mRcClient != null) { 3613 try { 3614 rcse.mRcClient.plugRemoteControlDisplay(mRcDisplay); 3615 } catch (RemoteException e) { 3616 Log.e(TAG, "Error connecting remote control display to client: " + e); 3617 e.printStackTrace(); 3618 } 3619 } 3620 } 3621 3622 // we have a new display, of which all the clients are now aware: have it be updated 3623 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3624 } 3625 } 3626 } 3627 3628 /** 3629 * Unregister an IRemoteControlDisplay. 3630 * Since only one IRemoteControlDisplay is supported, this has no effect if the one to 3631 * unregister is not the current one. 3632 * @param rcd the IRemoteControlDisplay to unregister. No effect if null. 3633 */ 3634 public void unregisterRemoteControlDisplay(IRemoteControlDisplay rcd) { 3635 if (DEBUG_RC) Log.d(TAG, "<<< unregisterRemoteControlDisplay("+rcd+")"); 3636 synchronized(mRCStack) { 3637 // only one display here, so you can only unregister the current display 3638 if ((rcd == null) || (rcd != mRcDisplay)) { 3639 if (DEBUG_RC) Log.w(TAG, " trying to unregister unregistered RCD"); 3640 return; 3641 } 3642 // if we had a display before, stop monitoring its death 3643 rcDisplay_stopDeathMonitor_syncRcStack(); 3644 mRcDisplay = null; 3645 3646 // disconnect this remote control display from all the clients 3647 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3648 while(stackIterator.hasNext()) { 3649 RemoteControlStackEntry rcse = stackIterator.next(); 3650 if(rcse.mRcClient != null) { 3651 try { 3652 rcse.mRcClient.unplugRemoteControlDisplay(rcd); 3653 } catch (RemoteException e) { 3654 Log.e(TAG, "Error disconnecting remote control display to client: " + e); 3655 e.printStackTrace(); 3656 } 3657 } 3658 } 3659 } 3660 } 3661 3662 public void remoteControlDisplayUsesBitmapSize(IRemoteControlDisplay rcd, int w, int h) { 3663 synchronized(mRCStack) { 3664 // NOTE: Only one IRemoteControlDisplay supported in this implementation 3665 mArtworkExpectedWidth = w; 3666 mArtworkExpectedHeight = h; 3667 } 3668 } 3669 3670 @Override 3671 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3672 // TODO probably a lot more to do here than just the audio focus and remote control stacks 3673 dumpFocusStack(pw); 3674 dumpRCStack(pw); 3675 } 3676 3677 3678} 3679