1 /* 2 * Copyright (C) 2009 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 17 #define LOG_TAG "AudioPolicyManagerBase" 18 //#define LOG_NDEBUG 0 19 20 //#define VERY_VERBOSE_LOGGING 21 #ifdef VERY_VERBOSE_LOGGING 22 #define ALOGVV ALOGV 23 #else 24 #define ALOGVV(a...) do { } while(0) 25 #endif 26 27 // A device mask for all audio input devices that are considered "virtual" when evaluating 28 // active inputs in getActiveInput() 29 #define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL AUDIO_DEVICE_IN_REMOTE_SUBMIX 30 // A device mask for all audio output devices that are considered "remote" when evaluating 31 // active output devices in isStreamActiveRemotely() 32 #define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX 33 34 #include <utils/Log.h> 35 #include <hardware_legacy/AudioPolicyManagerBase.h> 36 #include <hardware/audio_effect.h> 37 #include <hardware/audio.h> 38 #include <math.h> 39 #include <hardware_legacy/audio_policy_conf.h> 40 41 namespace android_audio_legacy { 42 43 // ---------------------------------------------------------------------------- 44 // AudioPolicyInterface implementation 45 // ---------------------------------------------------------------------------- 46 47 48 status_t AudioPolicyManagerBase::setDeviceConnectionState(audio_devices_t device, 49 AudioSystem::device_connection_state state, 50 const char *device_address) 51 { 52 SortedVector <audio_io_handle_t> outputs; 53 54 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address); 55 56 // connect/disconnect only 1 device at a time 57 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 58 59 if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) { 60 ALOGE("setDeviceConnectionState() invalid address: %s", device_address); 61 return BAD_VALUE; 62 } 63 64 // handle output devices 65 if (audio_is_output_device(device)) { 66 67 if (!mHasA2dp && audio_is_a2dp_device(device)) { 68 ALOGE("setDeviceConnectionState() invalid A2DP device: %x", device); 69 return BAD_VALUE; 70 } 71 if (!mHasUsb && audio_is_usb_device(device)) { 72 ALOGE("setDeviceConnectionState() invalid USB audio device: %x", device); 73 return BAD_VALUE; 74 } 75 if (!mHasRemoteSubmix && audio_is_remote_submix_device((audio_devices_t)device)) { 76 ALOGE("setDeviceConnectionState() invalid remote submix audio device: %x", device); 77 return BAD_VALUE; 78 } 79 80 // save a copy of the opened output descriptors before any output is opened or closed 81 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 82 mPreviousOutputs = mOutputs; 83 switch (state) 84 { 85 // handle output device connection 86 case AudioSystem::DEVICE_STATE_AVAILABLE: 87 if (mAvailableOutputDevices & device) { 88 ALOGW("setDeviceConnectionState() device already connected: %x", device); 89 return INVALID_OPERATION; 90 } 91 ALOGV("setDeviceConnectionState() connecting device %x", device); 92 93 if (checkOutputsForDevice(device, state, outputs) != NO_ERROR) { 94 return INVALID_OPERATION; 95 } 96 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %d outputs", 97 outputs.size()); 98 // register new device as available 99 mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices | device); 100 101 if (!outputs.isEmpty()) { 102 String8 paramStr; 103 if (mHasA2dp && audio_is_a2dp_device(device)) { 104 // handle A2DP device connection 105 AudioParameter param; 106 param.add(String8(AUDIO_PARAMETER_A2DP_SINK_ADDRESS), String8(device_address)); 107 paramStr = param.toString(); 108 mA2dpDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN); 109 mA2dpSuspended = false; 110 } else if (audio_is_bluetooth_sco_device(device)) { 111 // handle SCO device connection 112 mScoDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN); 113 } else if (mHasUsb && audio_is_usb_device(device)) { 114 // handle USB device connection 115 mUsbCardAndDevice = String8(device_address, MAX_DEVICE_ADDRESS_LEN); 116 paramStr = mUsbCardAndDevice; 117 } 118 // not currently handling multiple simultaneous submixes: ignoring remote submix 119 // case and address 120 if (!paramStr.isEmpty()) { 121 for (size_t i = 0; i < outputs.size(); i++) { 122 mpClientInterface->setParameters(outputs[i], paramStr); 123 } 124 } 125 } 126 break; 127 // handle output device disconnection 128 case AudioSystem::DEVICE_STATE_UNAVAILABLE: { 129 if (!(mAvailableOutputDevices & device)) { 130 ALOGW("setDeviceConnectionState() device not connected: %x", device); 131 return INVALID_OPERATION; 132 } 133 134 ALOGV("setDeviceConnectionState() disconnecting device %x", device); 135 // remove device from available output devices 136 mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices & ~device); 137 138 checkOutputsForDevice(device, state, outputs); 139 if (mHasA2dp && audio_is_a2dp_device(device)) { 140 // handle A2DP device disconnection 141 mA2dpDeviceAddress = ""; 142 mA2dpSuspended = false; 143 } else if (audio_is_bluetooth_sco_device(device)) { 144 // handle SCO device disconnection 145 mScoDeviceAddress = ""; 146 } else if (mHasUsb && audio_is_usb_device(device)) { 147 // handle USB device disconnection 148 mUsbCardAndDevice = ""; 149 } 150 // not currently handling multiple simultaneous submixes: ignoring remote submix 151 // case and address 152 } break; 153 154 default: 155 ALOGE("setDeviceConnectionState() invalid state: %x", state); 156 return BAD_VALUE; 157 } 158 159 checkA2dpSuspend(); 160 checkOutputForAllStrategies(); 161 // outputs must be closed after checkOutputForAllStrategies() is executed 162 if (!outputs.isEmpty()) { 163 for (size_t i = 0; i < outputs.size(); i++) { 164 // close unused outputs after device disconnection or direct outputs that have been 165 // opened by checkOutputsForDevice() to query dynamic parameters 166 if ((state == AudioSystem::DEVICE_STATE_UNAVAILABLE) || 167 (mOutputs.valueFor(outputs[i])->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) { 168 closeOutput(outputs[i]); 169 } 170 } 171 } 172 173 updateDevicesAndOutputs(); 174 for (size_t i = 0; i < mOutputs.size(); i++) { 175 // do not force device change on duplicated output because if device is 0, it will 176 // also force a device 0 for the two outputs it is duplicated to which may override 177 // a valid device selection on those outputs. 178 setOutputDevice(mOutputs.keyAt(i), 179 getNewDevice(mOutputs.keyAt(i), true /*fromCache*/), 180 !mOutputs.valueAt(i)->isDuplicated(), 181 0); 182 } 183 184 if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET) { 185 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 186 } else if (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO || 187 device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET || 188 device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) { 189 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 190 } else { 191 return NO_ERROR; 192 } 193 } 194 // handle input devices 195 if (audio_is_input_device(device)) { 196 197 switch (state) 198 { 199 // handle input device connection 200 case AudioSystem::DEVICE_STATE_AVAILABLE: { 201 if (mAvailableInputDevices & device) { 202 ALOGW("setDeviceConnectionState() device already connected: %d", device); 203 return INVALID_OPERATION; 204 } 205 mAvailableInputDevices = mAvailableInputDevices | (device & ~AUDIO_DEVICE_BIT_IN); 206 } 207 break; 208 209 // handle input device disconnection 210 case AudioSystem::DEVICE_STATE_UNAVAILABLE: { 211 if (!(mAvailableInputDevices & device)) { 212 ALOGW("setDeviceConnectionState() device not connected: %d", device); 213 return INVALID_OPERATION; 214 } 215 mAvailableInputDevices = (audio_devices_t) (mAvailableInputDevices & ~device); 216 } break; 217 218 default: 219 ALOGE("setDeviceConnectionState() invalid state: %x", state); 220 return BAD_VALUE; 221 } 222 223 audio_io_handle_t activeInput = getActiveInput(); 224 if (activeInput != 0) { 225 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput); 226 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource); 227 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) { 228 ALOGV("setDeviceConnectionState() changing device from %x to %x for input %d", 229 inputDesc->mDevice, newDevice, activeInput); 230 inputDesc->mDevice = newDevice; 231 AudioParameter param = AudioParameter(); 232 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice); 233 mpClientInterface->setParameters(activeInput, param.toString()); 234 } 235 } 236 237 return NO_ERROR; 238 } 239 240 ALOGW("setDeviceConnectionState() invalid device: %x", device); 241 return BAD_VALUE; 242 } 243 244 AudioSystem::device_connection_state AudioPolicyManagerBase::getDeviceConnectionState(audio_devices_t device, 245 const char *device_address) 246 { 247 AudioSystem::device_connection_state state = AudioSystem::DEVICE_STATE_UNAVAILABLE; 248 String8 address = String8(device_address); 249 if (audio_is_output_device(device)) { 250 if (device & mAvailableOutputDevices) { 251 if (audio_is_a2dp_device(device) && 252 (!mHasA2dp || (address != "" && mA2dpDeviceAddress != address))) { 253 return state; 254 } 255 if (audio_is_bluetooth_sco_device(device) && 256 address != "" && mScoDeviceAddress != address) { 257 return state; 258 } 259 if (audio_is_usb_device(device) && 260 (!mHasUsb || (address != "" && mUsbCardAndDevice != address))) { 261 ALOGE("getDeviceConnectionState() invalid device: %x", device); 262 return state; 263 } 264 if (audio_is_remote_submix_device((audio_devices_t)device) && !mHasRemoteSubmix) { 265 return state; 266 } 267 state = AudioSystem::DEVICE_STATE_AVAILABLE; 268 } 269 } else if (audio_is_input_device(device)) { 270 if (device & mAvailableInputDevices) { 271 state = AudioSystem::DEVICE_STATE_AVAILABLE; 272 } 273 } 274 275 return state; 276 } 277 278 void AudioPolicyManagerBase::setPhoneState(int state) 279 { 280 ALOGV("setPhoneState() state %d", state); 281 audio_devices_t newDevice = AUDIO_DEVICE_NONE; 282 if (state < 0 || state >= AudioSystem::NUM_MODES) { 283 ALOGW("setPhoneState() invalid state %d", state); 284 return; 285 } 286 287 if (state == mPhoneState ) { 288 ALOGW("setPhoneState() setting same state %d", state); 289 return; 290 } 291 292 // if leaving call state, handle special case of active streams 293 // pertaining to sonification strategy see handleIncallSonification() 294 if (isInCall()) { 295 ALOGV("setPhoneState() in call state management: new state is %d", state); 296 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { 297 handleIncallSonification(stream, false, true); 298 } 299 } 300 301 // store previous phone state for management of sonification strategy below 302 int oldState = mPhoneState; 303 mPhoneState = state; 304 bool force = false; 305 306 // are we entering or starting a call 307 if (!isStateInCall(oldState) && isStateInCall(state)) { 308 ALOGV(" Entering call in setPhoneState()"); 309 // force routing command to audio hardware when starting a call 310 // even if no device change is needed 311 force = true; 312 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 313 ALOGV(" Exiting call in setPhoneState()"); 314 // force routing command to audio hardware when exiting a call 315 // even if no device change is needed 316 force = true; 317 } else if (isStateInCall(state) && (state != oldState)) { 318 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 319 // force routing command to audio hardware when switching between telephony and VoIP 320 // even if no device change is needed 321 force = true; 322 } 323 324 // check for device and output changes triggered by new phone state 325 newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/); 326 checkA2dpSuspend(); 327 checkOutputForAllStrategies(); 328 updateDevicesAndOutputs(); 329 330 AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 331 332 // force routing command to audio hardware when ending call 333 // even if no device change is needed 334 if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) { 335 newDevice = hwOutputDesc->device(); 336 } 337 338 int delayMs = 0; 339 if (isStateInCall(state)) { 340 nsecs_t sysTime = systemTime(); 341 for (size_t i = 0; i < mOutputs.size(); i++) { 342 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 343 // mute media and sonification strategies and delay device switch by the largest 344 // latency of any output where either strategy is active. 345 // This avoid sending the ring tone or music tail into the earpiece or headset. 346 if ((desc->isStrategyActive(STRATEGY_MEDIA, 347 SONIFICATION_HEADSET_MUSIC_DELAY, 348 sysTime) || 349 desc->isStrategyActive(STRATEGY_SONIFICATION, 350 SONIFICATION_HEADSET_MUSIC_DELAY, 351 sysTime)) && 352 (delayMs < (int)desc->mLatency*2)) { 353 delayMs = desc->mLatency*2; 354 } 355 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 356 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 357 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 358 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 359 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 360 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 361 } 362 } 363 364 // change routing is necessary 365 setOutputDevice(mPrimaryOutput, newDevice, force, delayMs); 366 367 // if entering in call state, handle special case of active streams 368 // pertaining to sonification strategy see handleIncallSonification() 369 if (isStateInCall(state)) { 370 ALOGV("setPhoneState() in call state management: new state is %d", state); 371 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { 372 handleIncallSonification(stream, true, true); 373 } 374 } 375 376 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 377 if (state == AudioSystem::MODE_RINGTONE && 378 isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 379 mLimitRingtoneVolume = true; 380 } else { 381 mLimitRingtoneVolume = false; 382 } 383 } 384 385 void AudioPolicyManagerBase::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config) 386 { 387 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 388 389 bool forceVolumeReeval = false; 390 switch(usage) { 391 case AudioSystem::FOR_COMMUNICATION: 392 if (config != AudioSystem::FORCE_SPEAKER && config != AudioSystem::FORCE_BT_SCO && 393 config != AudioSystem::FORCE_NONE) { 394 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 395 return; 396 } 397 forceVolumeReeval = true; 398 mForceUse[usage] = config; 399 break; 400 case AudioSystem::FOR_MEDIA: 401 if (config != AudioSystem::FORCE_HEADPHONES && config != AudioSystem::FORCE_BT_A2DP && 402 config != AudioSystem::FORCE_WIRED_ACCESSORY && 403 config != AudioSystem::FORCE_ANALOG_DOCK && 404 config != AudioSystem::FORCE_DIGITAL_DOCK && config != AudioSystem::FORCE_NONE && 405 config != AudioSystem::FORCE_NO_BT_A2DP) { 406 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 407 return; 408 } 409 mForceUse[usage] = config; 410 break; 411 case AudioSystem::FOR_RECORD: 412 if (config != AudioSystem::FORCE_BT_SCO && config != AudioSystem::FORCE_WIRED_ACCESSORY && 413 config != AudioSystem::FORCE_NONE) { 414 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 415 return; 416 } 417 mForceUse[usage] = config; 418 break; 419 case AudioSystem::FOR_DOCK: 420 if (config != AudioSystem::FORCE_NONE && config != AudioSystem::FORCE_BT_CAR_DOCK && 421 config != AudioSystem::FORCE_BT_DESK_DOCK && 422 config != AudioSystem::FORCE_WIRED_ACCESSORY && 423 config != AudioSystem::FORCE_ANALOG_DOCK && 424 config != AudioSystem::FORCE_DIGITAL_DOCK) { 425 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 426 } 427 forceVolumeReeval = true; 428 mForceUse[usage] = config; 429 break; 430 case AudioSystem::FOR_SYSTEM: 431 if (config != AudioSystem::FORCE_NONE && 432 config != AudioSystem::FORCE_SYSTEM_ENFORCED) { 433 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 434 } 435 forceVolumeReeval = true; 436 mForceUse[usage] = config; 437 break; 438 default: 439 ALOGW("setForceUse() invalid usage %d", usage); 440 break; 441 } 442 443 // check for device and output changes triggered by new force usage 444 checkA2dpSuspend(); 445 checkOutputForAllStrategies(); 446 updateDevicesAndOutputs(); 447 for (size_t i = 0; i < mOutputs.size(); i++) { 448 audio_io_handle_t output = mOutputs.keyAt(i); 449 audio_devices_t newDevice = getNewDevice(output, true /*fromCache*/); 450 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 451 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 452 applyStreamVolumes(output, newDevice, 0, true); 453 } 454 } 455 456 audio_io_handle_t activeInput = getActiveInput(); 457 if (activeInput != 0) { 458 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput); 459 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource); 460 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) { 461 ALOGV("setForceUse() changing device from %x to %x for input %d", 462 inputDesc->mDevice, newDevice, activeInput); 463 inputDesc->mDevice = newDevice; 464 AudioParameter param = AudioParameter(); 465 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice); 466 mpClientInterface->setParameters(activeInput, param.toString()); 467 } 468 } 469 470 } 471 472 AudioSystem::forced_config AudioPolicyManagerBase::getForceUse(AudioSystem::force_use usage) 473 { 474 return mForceUse[usage]; 475 } 476 477 void AudioPolicyManagerBase::setSystemProperty(const char* property, const char* value) 478 { 479 ALOGV("setSystemProperty() property %s, value %s", property, value); 480 } 481 482 AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getProfileForDirectOutput( 483 audio_devices_t device, 484 uint32_t samplingRate, 485 uint32_t format, 486 uint32_t channelMask, 487 audio_output_flags_t flags) 488 { 489 for (size_t i = 0; i < mHwModules.size(); i++) { 490 if (mHwModules[i]->mHandle == 0) { 491 continue; 492 } 493 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 494 IOProfile *profile = mHwModules[i]->mOutputProfiles[j]; 495 if (profile->isCompatibleProfile(device, samplingRate, format, 496 channelMask, 497 AUDIO_OUTPUT_FLAG_DIRECT)) { 498 if (mAvailableOutputDevices & profile->mSupportedDevices) { 499 return mHwModules[i]->mOutputProfiles[j]; 500 } 501 } 502 } 503 } 504 return 0; 505 } 506 507 audio_io_handle_t AudioPolicyManagerBase::getOutput(AudioSystem::stream_type stream, 508 uint32_t samplingRate, 509 uint32_t format, 510 uint32_t channelMask, 511 AudioSystem::output_flags flags) 512 { 513 audio_io_handle_t output = 0; 514 uint32_t latency = 0; 515 routing_strategy strategy = getStrategy((AudioSystem::stream_type)stream); 516 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 517 ALOGV("getOutput() stream %d, samplingRate %d, format %d, channelMask %x, flags %x", 518 stream, samplingRate, format, channelMask, flags); 519 520 #ifdef AUDIO_POLICY_TEST 521 if (mCurOutput != 0) { 522 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 523 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 524 525 if (mTestOutputs[mCurOutput] == 0) { 526 ALOGV("getOutput() opening test output"); 527 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL); 528 outputDesc->mDevice = mTestDevice; 529 outputDesc->mSamplingRate = mTestSamplingRate; 530 outputDesc->mFormat = mTestFormat; 531 outputDesc->mChannelMask = mTestChannels; 532 outputDesc->mLatency = mTestLatencyMs; 533 outputDesc->mFlags = (audio_output_flags_t)(mDirectOutput ? AudioSystem::OUTPUT_FLAG_DIRECT : 0); 534 outputDesc->mRefCount[stream] = 0; 535 mTestOutputs[mCurOutput] = mpClientInterface->openOutput(0, &outputDesc->mDevice, 536 &outputDesc->mSamplingRate, 537 &outputDesc->mFormat, 538 &outputDesc->mChannelMask, 539 &outputDesc->mLatency, 540 outputDesc->mFlags); 541 if (mTestOutputs[mCurOutput]) { 542 AudioParameter outputCmd = AudioParameter(); 543 outputCmd.addInt(String8("set_id"),mCurOutput); 544 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 545 addOutput(mTestOutputs[mCurOutput], outputDesc); 546 } 547 } 548 return mTestOutputs[mCurOutput]; 549 } 550 #endif //AUDIO_POLICY_TEST 551 552 // open a direct output if required by specified parameters 553 IOProfile *profile = getProfileForDirectOutput(device, 554 samplingRate, 555 format, 556 channelMask, 557 (audio_output_flags_t)flags); 558 if (profile != NULL) { 559 AudioOutputDescriptor *outputDesc = NULL; 560 561 for (size_t i = 0; i < mOutputs.size(); i++) { 562 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 563 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 564 outputDesc = desc; 565 // reuse direct output if currently open and configured with same parameters 566 if ((samplingRate == outputDesc->mSamplingRate) && 567 (format == outputDesc->mFormat) && 568 (channelMask == outputDesc->mChannelMask)) { 569 outputDesc->mDirectOpenCount++; 570 ALOGV("getOutput() reusing direct output %d", output); 571 return mOutputs.keyAt(i); 572 } 573 } 574 } 575 // close direct output if currently open and configured with different parameters 576 if (outputDesc != NULL) { 577 closeOutput(outputDesc->mId); 578 } 579 outputDesc = new AudioOutputDescriptor(profile); 580 outputDesc->mDevice = device; 581 outputDesc->mSamplingRate = samplingRate; 582 outputDesc->mFormat = (audio_format_t)format; 583 outputDesc->mChannelMask = (audio_channel_mask_t)channelMask; 584 outputDesc->mLatency = 0; 585 outputDesc->mFlags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);; 586 outputDesc->mRefCount[stream] = 0; 587 outputDesc->mStopTime[stream] = 0; 588 outputDesc->mDirectOpenCount = 1; 589 output = mpClientInterface->openOutput(profile->mModule->mHandle, 590 &outputDesc->mDevice, 591 &outputDesc->mSamplingRate, 592 &outputDesc->mFormat, 593 &outputDesc->mChannelMask, 594 &outputDesc->mLatency, 595 outputDesc->mFlags); 596 597 // only accept an output with the requested parameters 598 if (output == 0 || 599 (samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) || 600 (format != 0 && format != outputDesc->mFormat) || 601 (channelMask != 0 && channelMask != outputDesc->mChannelMask)) { 602 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 603 "format %d %d, channelMask %04x %04x", output, samplingRate, 604 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 605 outputDesc->mChannelMask); 606 if (output != 0) { 607 mpClientInterface->closeOutput(output); 608 } 609 delete outputDesc; 610 return 0; 611 } 612 addOutput(output, outputDesc); 613 mPreviousOutputs = mOutputs; 614 ALOGV("getOutput() returns new direct output %d", output); 615 return output; 616 } 617 618 // ignoring channel mask due to downmix capability in mixer 619 620 // open a non direct output 621 622 // get which output is suitable for the specified stream. The actual routing change will happen 623 // when startOutput() will be called 624 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 625 626 output = selectOutput(outputs, flags); 627 628 ALOGW_IF((output ==0), "getOutput() could not find output for stream %d, samplingRate %d," 629 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 630 631 ALOGV("getOutput() returns output %d", output); 632 633 return output; 634 } 635 636 audio_io_handle_t AudioPolicyManagerBase::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 637 AudioSystem::output_flags flags) 638 { 639 // select one output among several that provide a path to a particular device or set of 640 // devices (the list was previously build by getOutputsForDevice()). 641 // The priority is as follows: 642 // 1: the output with the highest number of requested policy flags 643 // 2: the primary output 644 // 3: the first output in the list 645 646 if (outputs.size() == 0) { 647 return 0; 648 } 649 if (outputs.size() == 1) { 650 return outputs[0]; 651 } 652 653 int maxCommonFlags = 0; 654 audio_io_handle_t outputFlags = 0; 655 audio_io_handle_t outputPrimary = 0; 656 657 for (size_t i = 0; i < outputs.size(); i++) { 658 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(outputs[i]); 659 if (!outputDesc->isDuplicated()) { 660 int commonFlags = (int)AudioSystem::popCount(outputDesc->mProfile->mFlags & flags); 661 if (commonFlags > maxCommonFlags) { 662 outputFlags = outputs[i]; 663 maxCommonFlags = commonFlags; 664 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 665 } 666 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 667 outputPrimary = outputs[i]; 668 } 669 } 670 } 671 672 if (outputFlags != 0) { 673 return outputFlags; 674 } 675 if (outputPrimary != 0) { 676 return outputPrimary; 677 } 678 679 return outputs[0]; 680 } 681 682 status_t AudioPolicyManagerBase::startOutput(audio_io_handle_t output, 683 AudioSystem::stream_type stream, 684 int session) 685 { 686 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 687 ssize_t index = mOutputs.indexOfKey(output); 688 if (index < 0) { 689 ALOGW("startOutput() unknow output %d", output); 690 return BAD_VALUE; 691 } 692 693 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); 694 695 // increment usage count for this stream on the requested output: 696 // NOTE that the usage count is the same for duplicated output and hardware output which is 697 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 698 outputDesc->changeRefCount(stream, 1); 699 700 if (outputDesc->mRefCount[stream] == 1) { 701 audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/); 702 routing_strategy strategy = getStrategy(stream); 703 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 704 (strategy == STRATEGY_SONIFICATION_RESPECTFUL); 705 uint32_t waitMs = 0; 706 bool force = false; 707 for (size_t i = 0; i < mOutputs.size(); i++) { 708 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 709 if (desc != outputDesc) { 710 // force a device change if any other output is managed by the same hw 711 // module and has a current device selection that differs from selected device. 712 // In this case, the audio HAL must receive the new device selection so that it can 713 // change the device currently selected by the other active output. 714 if (outputDesc->sharesHwModuleWith(desc) && 715 desc->device() != newDevice) { 716 force = true; 717 } 718 // wait for audio on other active outputs to be presented when starting 719 // a notification so that audio focus effect can propagate. 720 uint32_t latency = desc->latency(); 721 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 722 waitMs = latency; 723 } 724 } 725 } 726 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 727 728 // handle special case for sonification while in call 729 if (isInCall()) { 730 handleIncallSonification(stream, true, false); 731 } 732 733 // apply volume rules for current stream and device if necessary 734 checkAndSetVolume(stream, 735 mStreams[stream].getVolumeIndex(newDevice), 736 output, 737 newDevice); 738 739 // update the outputs if starting an output with a stream that can affect notification 740 // routing 741 handleNotificationRoutingForStream(stream); 742 if (waitMs > muteWaitMs) { 743 usleep((waitMs - muteWaitMs) * 2 * 1000); 744 } 745 } 746 return NO_ERROR; 747 } 748 749 750 status_t AudioPolicyManagerBase::stopOutput(audio_io_handle_t output, 751 AudioSystem::stream_type stream, 752 int session) 753 { 754 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 755 ssize_t index = mOutputs.indexOfKey(output); 756 if (index < 0) { 757 ALOGW("stopOutput() unknow output %d", output); 758 return BAD_VALUE; 759 } 760 761 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); 762 763 // handle special case for sonification while in call 764 if (isInCall()) { 765 handleIncallSonification(stream, false, false); 766 } 767 768 if (outputDesc->mRefCount[stream] > 0) { 769 // decrement usage count of this stream on the output 770 outputDesc->changeRefCount(stream, -1); 771 // store time at which the stream was stopped - see isStreamActive() 772 if (outputDesc->mRefCount[stream] == 0) { 773 outputDesc->mStopTime[stream] = systemTime(); 774 audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/); 775 // delay the device switch by twice the latency because stopOutput() is executed when 776 // the track stop() command is received and at that time the audio track buffer can 777 // still contain data that needs to be drained. The latency only covers the audio HAL 778 // and kernel buffers. Also the latency does not always include additional delay in the 779 // audio path (audio DSP, CODEC ...) 780 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 781 782 // force restoring the device selection on other active outputs if it differs from the 783 // one being selected for this output 784 for (size_t i = 0; i < mOutputs.size(); i++) { 785 audio_io_handle_t curOutput = mOutputs.keyAt(i); 786 AudioOutputDescriptor *desc = mOutputs.valueAt(i); 787 if (curOutput != output && 788 desc->isActive() && 789 outputDesc->sharesHwModuleWith(desc) && 790 newDevice != desc->device()) { 791 setOutputDevice(curOutput, 792 getNewDevice(curOutput, false /*fromCache*/), 793 true, 794 outputDesc->mLatency*2); 795 } 796 } 797 // update the outputs if stopping one with a stream that can affect notification routing 798 handleNotificationRoutingForStream(stream); 799 } 800 return NO_ERROR; 801 } else { 802 ALOGW("stopOutput() refcount is already 0 for output %d", output); 803 return INVALID_OPERATION; 804 } 805 } 806 807 void AudioPolicyManagerBase::releaseOutput(audio_io_handle_t output) 808 { 809 ALOGV("releaseOutput() %d", output); 810 ssize_t index = mOutputs.indexOfKey(output); 811 if (index < 0) { 812 ALOGW("releaseOutput() releasing unknown output %d", output); 813 return; 814 } 815 816 #ifdef AUDIO_POLICY_TEST 817 int testIndex = testOutputIndex(output); 818 if (testIndex != 0) { 819 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index); 820 if (outputDesc->isActive()) { 821 mpClientInterface->closeOutput(output); 822 delete mOutputs.valueAt(index); 823 mOutputs.removeItem(output); 824 mTestOutputs[testIndex] = 0; 825 } 826 return; 827 } 828 #endif //AUDIO_POLICY_TEST 829 830 AudioOutputDescriptor *desc = mOutputs.valueAt(index); 831 if (desc->mFlags & AudioSystem::OUTPUT_FLAG_DIRECT) { 832 if (desc->mDirectOpenCount <= 0) { 833 ALOGW("releaseOutput() invalid open count %d for output %d", 834 desc->mDirectOpenCount, output); 835 return; 836 } 837 if (--desc->mDirectOpenCount == 0) { 838 closeOutput(output); 839 } 840 } 841 842 } 843 844 audio_io_handle_t AudioPolicyManagerBase::getInput(int inputSource, 845 uint32_t samplingRate, 846 uint32_t format, 847 uint32_t channelMask, 848 AudioSystem::audio_in_acoustics acoustics) 849 { 850 audio_io_handle_t input = 0; 851 audio_devices_t device = getDeviceForInputSource(inputSource); 852 853 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x", 854 inputSource, samplingRate, format, channelMask, acoustics); 855 856 if (device == AUDIO_DEVICE_NONE) { 857 ALOGW("getInput() could not find device for inputSource %d", inputSource); 858 return 0; 859 } 860 861 // adapt channel selection to input source 862 switch(inputSource) { 863 case AUDIO_SOURCE_VOICE_UPLINK: 864 channelMask = AudioSystem::CHANNEL_IN_VOICE_UPLINK; 865 break; 866 case AUDIO_SOURCE_VOICE_DOWNLINK: 867 channelMask = AudioSystem::CHANNEL_IN_VOICE_DNLINK; 868 break; 869 case AUDIO_SOURCE_VOICE_CALL: 870 channelMask = (AudioSystem::CHANNEL_IN_VOICE_UPLINK | AudioSystem::CHANNEL_IN_VOICE_DNLINK); 871 break; 872 default: 873 break; 874 } 875 876 IOProfile *profile = getInputProfile(device, 877 samplingRate, 878 format, 879 channelMask); 880 if (profile == NULL) { 881 ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d," 882 "channelMask %04x", 883 device, samplingRate, format, channelMask); 884 return 0; 885 } 886 887 if (profile->mModule->mHandle == 0) { 888 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); 889 return 0; 890 } 891 892 AudioInputDescriptor *inputDesc = new AudioInputDescriptor(profile); 893 894 inputDesc->mInputSource = inputSource; 895 inputDesc->mDevice = device; 896 inputDesc->mSamplingRate = samplingRate; 897 inputDesc->mFormat = (audio_format_t)format; 898 inputDesc->mChannelMask = (audio_channel_mask_t)channelMask; 899 inputDesc->mRefCount = 0; 900 input = mpClientInterface->openInput(profile->mModule->mHandle, 901 &inputDesc->mDevice, 902 &inputDesc->mSamplingRate, 903 &inputDesc->mFormat, 904 &inputDesc->mChannelMask); 905 906 // only accept input with the exact requested set of parameters 907 if (input == 0 || 908 (samplingRate != inputDesc->mSamplingRate) || 909 (format != inputDesc->mFormat) || 910 (channelMask != inputDesc->mChannelMask)) { 911 ALOGV("getInput() failed opening input: samplingRate %d, format %d, channelMask %d", 912 samplingRate, format, channelMask); 913 if (input != 0) { 914 mpClientInterface->closeInput(input); 915 } 916 delete inputDesc; 917 return 0; 918 } 919 mInputs.add(input, inputDesc); 920 return input; 921 } 922 923 status_t AudioPolicyManagerBase::startInput(audio_io_handle_t input) 924 { 925 ALOGV("startInput() input %d", input); 926 ssize_t index = mInputs.indexOfKey(input); 927 if (index < 0) { 928 ALOGW("startInput() unknow input %d", input); 929 return BAD_VALUE; 930 } 931 AudioInputDescriptor *inputDesc = mInputs.valueAt(index); 932 933 #ifdef AUDIO_POLICY_TEST 934 if (mTestInput == 0) 935 #endif //AUDIO_POLICY_TEST 936 { 937 // refuse 2 active AudioRecord clients at the same time 938 if (getActiveInput() != 0) { 939 ALOGW("startInput() input %d failed: other input already started", input); 940 return INVALID_OPERATION; 941 } 942 } 943 944 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource); 945 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) { 946 inputDesc->mDevice = newDevice; 947 } 948 AudioParameter param = AudioParameter(); 949 param.addInt(String8(AudioParameter::keyRouting), (int)inputDesc->mDevice); 950 951 param.addInt(String8(AudioParameter::keyInputSource), (int)inputDesc->mInputSource); 952 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 953 954 mpClientInterface->setParameters(input, param.toString()); 955 956 inputDesc->mRefCount = 1; 957 return NO_ERROR; 958 } 959 960 status_t AudioPolicyManagerBase::stopInput(audio_io_handle_t input) 961 { 962 ALOGV("stopInput() input %d", input); 963 ssize_t index = mInputs.indexOfKey(input); 964 if (index < 0) { 965 ALOGW("stopInput() unknow input %d", input); 966 return BAD_VALUE; 967 } 968 AudioInputDescriptor *inputDesc = mInputs.valueAt(index); 969 970 if (inputDesc->mRefCount == 0) { 971 ALOGW("stopInput() input %d already stopped", input); 972 return INVALID_OPERATION; 973 } else { 974 AudioParameter param = AudioParameter(); 975 param.addInt(String8(AudioParameter::keyRouting), 0); 976 mpClientInterface->setParameters(input, param.toString()); 977 inputDesc->mRefCount = 0; 978 return NO_ERROR; 979 } 980 } 981 982 void AudioPolicyManagerBase::releaseInput(audio_io_handle_t input) 983 { 984 ALOGV("releaseInput() %d", input); 985 ssize_t index = mInputs.indexOfKey(input); 986 if (index < 0) { 987 ALOGW("releaseInput() releasing unknown input %d", input); 988 return; 989 } 990 mpClientInterface->closeInput(input); 991 delete mInputs.valueAt(index); 992 mInputs.removeItem(input); 993 ALOGV("releaseInput() exit"); 994 } 995 996 void AudioPolicyManagerBase::initStreamVolume(AudioSystem::stream_type stream, 997 int indexMin, 998 int indexMax) 999 { 1000 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1001 if (indexMin < 0 || indexMin >= indexMax) { 1002 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1003 return; 1004 } 1005 mStreams[stream].mIndexMin = indexMin; 1006 mStreams[stream].mIndexMax = indexMax; 1007 } 1008 1009 status_t AudioPolicyManagerBase::setStreamVolumeIndex(AudioSystem::stream_type stream, 1010 int index, 1011 audio_devices_t device) 1012 { 1013 1014 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1015 return BAD_VALUE; 1016 } 1017 if (!audio_is_output_device(device)) { 1018 return BAD_VALUE; 1019 } 1020 1021 // Force max volume if stream cannot be muted 1022 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1023 1024 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1025 stream, device, index); 1026 1027 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1028 // clear all device specific values 1029 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1030 mStreams[stream].mIndexCur.clear(); 1031 } 1032 mStreams[stream].mIndexCur.add(device, index); 1033 1034 // compute and apply stream volume on all outputs according to connected device 1035 status_t status = NO_ERROR; 1036 for (size_t i = 0; i < mOutputs.size(); i++) { 1037 audio_devices_t curDevice = 1038 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1039 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || (device == curDevice)) { 1040 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1041 if (volStatus != NO_ERROR) { 1042 status = volStatus; 1043 } 1044 } 1045 } 1046 return status; 1047 } 1048 1049 status_t AudioPolicyManagerBase::getStreamVolumeIndex(AudioSystem::stream_type stream, 1050 int *index, 1051 audio_devices_t device) 1052 { 1053 if (index == NULL) { 1054 return BAD_VALUE; 1055 } 1056 if (!audio_is_output_device(device)) { 1057 return BAD_VALUE; 1058 } 1059 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1060 // the strategy the stream belongs to. 1061 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1062 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1063 } 1064 device = getDeviceForVolume(device); 1065 1066 *index = mStreams[stream].getVolumeIndex(device); 1067 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1068 return NO_ERROR; 1069 } 1070 1071 audio_io_handle_t AudioPolicyManagerBase::getOutputForEffect(const effect_descriptor_t *desc) 1072 { 1073 ALOGV("getOutputForEffect()"); 1074 // apply simple rule where global effects are attached to the same output as MUSIC streams 1075 1076 routing_strategy strategy = getStrategy(AudioSystem::MUSIC); 1077 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1078 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1079 int outIdx = 0; 1080 for (size_t i = 0; i < dstOutputs.size(); i++) { 1081 AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]); 1082 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) { 1083 outIdx = i; 1084 } 1085 } 1086 return dstOutputs[outIdx]; 1087 } 1088 1089 status_t AudioPolicyManagerBase::registerEffect(const effect_descriptor_t *desc, 1090 audio_io_handle_t io, 1091 uint32_t strategy, 1092 int session, 1093 int id) 1094 { 1095 ssize_t index = mOutputs.indexOfKey(io); 1096 if (index < 0) { 1097 index = mInputs.indexOfKey(io); 1098 if (index < 0) { 1099 ALOGW("registerEffect() unknown io %d", io); 1100 return INVALID_OPERATION; 1101 } 1102 } 1103 1104 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1105 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1106 desc->name, desc->memoryUsage); 1107 return INVALID_OPERATION; 1108 } 1109 mTotalEffectsMemory += desc->memoryUsage; 1110 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1111 desc->name, io, strategy, session, id); 1112 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1113 1114 EffectDescriptor *pDesc = new EffectDescriptor(); 1115 memcpy (&pDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1116 pDesc->mIo = io; 1117 pDesc->mStrategy = (routing_strategy)strategy; 1118 pDesc->mSession = session; 1119 pDesc->mEnabled = false; 1120 1121 mEffects.add(id, pDesc); 1122 1123 return NO_ERROR; 1124 } 1125 1126 status_t AudioPolicyManagerBase::unregisterEffect(int id) 1127 { 1128 ssize_t index = mEffects.indexOfKey(id); 1129 if (index < 0) { 1130 ALOGW("unregisterEffect() unknown effect ID %d", id); 1131 return INVALID_OPERATION; 1132 } 1133 1134 EffectDescriptor *pDesc = mEffects.valueAt(index); 1135 1136 setEffectEnabled(pDesc, false); 1137 1138 if (mTotalEffectsMemory < pDesc->mDesc.memoryUsage) { 1139 ALOGW("unregisterEffect() memory %d too big for total %d", 1140 pDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1141 pDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1142 } 1143 mTotalEffectsMemory -= pDesc->mDesc.memoryUsage; 1144 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1145 pDesc->mDesc.name, id, pDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1146 1147 mEffects.removeItem(id); 1148 delete pDesc; 1149 1150 return NO_ERROR; 1151 } 1152 1153 status_t AudioPolicyManagerBase::setEffectEnabled(int id, bool enabled) 1154 { 1155 ssize_t index = mEffects.indexOfKey(id); 1156 if (index < 0) { 1157 ALOGW("unregisterEffect() unknown effect ID %d", id); 1158 return INVALID_OPERATION; 1159 } 1160 1161 return setEffectEnabled(mEffects.valueAt(index), enabled); 1162 } 1163 1164 status_t AudioPolicyManagerBase::setEffectEnabled(EffectDescriptor *pDesc, bool enabled) 1165 { 1166 if (enabled == pDesc->mEnabled) { 1167 ALOGV("setEffectEnabled(%s) effect already %s", 1168 enabled?"true":"false", enabled?"enabled":"disabled"); 1169 return INVALID_OPERATION; 1170 } 1171 1172 if (enabled) { 1173 if (mTotalEffectsCpuLoad + pDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1174 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1175 pDesc->mDesc.name, (float)pDesc->mDesc.cpuLoad/10); 1176 return INVALID_OPERATION; 1177 } 1178 mTotalEffectsCpuLoad += pDesc->mDesc.cpuLoad; 1179 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1180 } else { 1181 if (mTotalEffectsCpuLoad < pDesc->mDesc.cpuLoad) { 1182 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1183 pDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1184 pDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1185 } 1186 mTotalEffectsCpuLoad -= pDesc->mDesc.cpuLoad; 1187 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1188 } 1189 pDesc->mEnabled = enabled; 1190 return NO_ERROR; 1191 } 1192 1193 bool AudioPolicyManagerBase::isStreamActive(int stream, uint32_t inPastMs) const 1194 { 1195 nsecs_t sysTime = systemTime(); 1196 for (size_t i = 0; i < mOutputs.size(); i++) { 1197 const AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); 1198 if (outputDesc->isStreamActive((AudioSystem::stream_type)stream, inPastMs, sysTime)) { 1199 return true; 1200 } 1201 } 1202 return false; 1203 } 1204 1205 bool AudioPolicyManagerBase::isStreamActiveRemotely(int stream, uint32_t inPastMs) const 1206 { 1207 nsecs_t sysTime = systemTime(); 1208 for (size_t i = 0; i < mOutputs.size(); i++) { 1209 const AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); 1210 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1211 outputDesc->isStreamActive((AudioSystem::stream_type)stream, inPastMs, sysTime)) { 1212 return true; 1213 } 1214 } 1215 return false; 1216 } 1217 1218 bool AudioPolicyManagerBase::isSourceActive(audio_source_t source) const 1219 { 1220 for (size_t i = 0; i < mInputs.size(); i++) { 1221 const AudioInputDescriptor * inputDescriptor = mInputs.valueAt(i); 1222 if ((inputDescriptor->mInputSource == (int) source) 1223 && (inputDescriptor->mRefCount > 0)) { 1224 return true; 1225 } 1226 } 1227 return false; 1228 } 1229 1230 1231 1232 status_t AudioPolicyManagerBase::dump(int fd) 1233 { 1234 const size_t SIZE = 256; 1235 char buffer[SIZE]; 1236 String8 result; 1237 1238 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1239 result.append(buffer); 1240 1241 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1242 result.append(buffer); 1243 snprintf(buffer, SIZE, " A2DP device address: %s\n", mA2dpDeviceAddress.string()); 1244 result.append(buffer); 1245 snprintf(buffer, SIZE, " SCO device address: %s\n", mScoDeviceAddress.string()); 1246 result.append(buffer); 1247 snprintf(buffer, SIZE, " USB audio ALSA %s\n", mUsbCardAndDevice.string()); 1248 result.append(buffer); 1249 snprintf(buffer, SIZE, " Output devices: %08x\n", mAvailableOutputDevices); 1250 result.append(buffer); 1251 snprintf(buffer, SIZE, " Input devices: %08x\n", mAvailableInputDevices); 1252 result.append(buffer); 1253 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1254 result.append(buffer); 1255 snprintf(buffer, SIZE, " Force use for communications %d\n", mForceUse[AudioSystem::FOR_COMMUNICATION]); 1256 result.append(buffer); 1257 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AudioSystem::FOR_MEDIA]); 1258 result.append(buffer); 1259 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AudioSystem::FOR_RECORD]); 1260 result.append(buffer); 1261 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AudioSystem::FOR_DOCK]); 1262 result.append(buffer); 1263 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AudioSystem::FOR_SYSTEM]); 1264 result.append(buffer); 1265 write(fd, result.string(), result.size()); 1266 1267 1268 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1269 write(fd, buffer, strlen(buffer)); 1270 for (size_t i = 0; i < mHwModules.size(); i++) { 1271 snprintf(buffer, SIZE, "- HW Module %d:\n", i + 1); 1272 write(fd, buffer, strlen(buffer)); 1273 mHwModules[i]->dump(fd); 1274 } 1275 1276 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1277 write(fd, buffer, strlen(buffer)); 1278 for (size_t i = 0; i < mOutputs.size(); i++) { 1279 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1280 write(fd, buffer, strlen(buffer)); 1281 mOutputs.valueAt(i)->dump(fd); 1282 } 1283 1284 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1285 write(fd, buffer, strlen(buffer)); 1286 for (size_t i = 0; i < mInputs.size(); i++) { 1287 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1288 write(fd, buffer, strlen(buffer)); 1289 mInputs.valueAt(i)->dump(fd); 1290 } 1291 1292 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1293 write(fd, buffer, strlen(buffer)); 1294 snprintf(buffer, SIZE, 1295 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1296 write(fd, buffer, strlen(buffer)); 1297 for (size_t i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) { 1298 snprintf(buffer, SIZE, " %02d ", i); 1299 write(fd, buffer, strlen(buffer)); 1300 mStreams[i].dump(fd); 1301 } 1302 1303 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 1304 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 1305 write(fd, buffer, strlen(buffer)); 1306 1307 snprintf(buffer, SIZE, "Registered effects:\n"); 1308 write(fd, buffer, strlen(buffer)); 1309 for (size_t i = 0; i < mEffects.size(); i++) { 1310 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 1311 write(fd, buffer, strlen(buffer)); 1312 mEffects.valueAt(i)->dump(fd); 1313 } 1314 1315 1316 return NO_ERROR; 1317 } 1318 1319 // ---------------------------------------------------------------------------- 1320 // AudioPolicyManagerBase 1321 // ---------------------------------------------------------------------------- 1322 1323 AudioPolicyManagerBase::AudioPolicyManagerBase(AudioPolicyClientInterface *clientInterface) 1324 : 1325 #ifdef AUDIO_POLICY_TEST 1326 Thread(false), 1327 #endif //AUDIO_POLICY_TEST 1328 mPrimaryOutput((audio_io_handle_t)0), 1329 mAvailableOutputDevices(AUDIO_DEVICE_NONE), 1330 mPhoneState(AudioSystem::MODE_NORMAL), 1331 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 1332 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 1333 mA2dpSuspended(false), mHasA2dp(false), mHasUsb(false), mHasRemoteSubmix(false) 1334 { 1335 mpClientInterface = clientInterface; 1336 1337 for (int i = 0; i < AudioSystem::NUM_FORCE_USE; i++) { 1338 mForceUse[i] = AudioSystem::FORCE_NONE; 1339 } 1340 1341 initializeVolumeCurves(); 1342 1343 mA2dpDeviceAddress = String8(""); 1344 mScoDeviceAddress = String8(""); 1345 mUsbCardAndDevice = String8(""); 1346 1347 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 1348 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 1349 ALOGE("could not load audio policy configuration file, setting defaults"); 1350 defaultAudioPolicyConfig(); 1351 } 1352 } 1353 1354 // open all output streams needed to access attached devices 1355 for (size_t i = 0; i < mHwModules.size(); i++) { 1356 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 1357 if (mHwModules[i]->mHandle == 0) { 1358 ALOGW("could not open HW module %s", mHwModules[i]->mName); 1359 continue; 1360 } 1361 // open all output streams needed to access attached devices 1362 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 1363 { 1364 const IOProfile *outProfile = mHwModules[i]->mOutputProfiles[j]; 1365 1366 if (outProfile->mSupportedDevices & mAttachedOutputDevices) { 1367 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(outProfile); 1368 outputDesc->mDevice = (audio_devices_t)(mDefaultOutputDevice & 1369 outProfile->mSupportedDevices); 1370 audio_io_handle_t output = mpClientInterface->openOutput( 1371 outProfile->mModule->mHandle, 1372 &outputDesc->mDevice, 1373 &outputDesc->mSamplingRate, 1374 &outputDesc->mFormat, 1375 &outputDesc->mChannelMask, 1376 &outputDesc->mLatency, 1377 outputDesc->mFlags); 1378 if (output == 0) { 1379 delete outputDesc; 1380 } else { 1381 mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices | 1382 (outProfile->mSupportedDevices & mAttachedOutputDevices)); 1383 if (mPrimaryOutput == 0 && 1384 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1385 mPrimaryOutput = output; 1386 } 1387 addOutput(output, outputDesc); 1388 setOutputDevice(output, 1389 (audio_devices_t)(mDefaultOutputDevice & 1390 outProfile->mSupportedDevices), 1391 true); 1392 } 1393 } 1394 } 1395 } 1396 1397 ALOGE_IF((mAttachedOutputDevices & ~mAvailableOutputDevices), 1398 "Not output found for attached devices %08x", 1399 (mAttachedOutputDevices & ~mAvailableOutputDevices)); 1400 1401 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 1402 1403 updateDevicesAndOutputs(); 1404 1405 #ifdef AUDIO_POLICY_TEST 1406 if (mPrimaryOutput != 0) { 1407 AudioParameter outputCmd = AudioParameter(); 1408 outputCmd.addInt(String8("set_id"), 0); 1409 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 1410 1411 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 1412 mTestSamplingRate = 44100; 1413 mTestFormat = AudioSystem::PCM_16_BIT; 1414 mTestChannels = AudioSystem::CHANNEL_OUT_STEREO; 1415 mTestLatencyMs = 0; 1416 mCurOutput = 0; 1417 mDirectOutput = false; 1418 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 1419 mTestOutputs[i] = 0; 1420 } 1421 1422 const size_t SIZE = 256; 1423 char buffer[SIZE]; 1424 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 1425 run(buffer, ANDROID_PRIORITY_AUDIO); 1426 } 1427 #endif //AUDIO_POLICY_TEST 1428 } 1429 1430 AudioPolicyManagerBase::~AudioPolicyManagerBase() 1431 { 1432 #ifdef AUDIO_POLICY_TEST 1433 exit(); 1434 #endif //AUDIO_POLICY_TEST 1435 for (size_t i = 0; i < mOutputs.size(); i++) { 1436 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 1437 delete mOutputs.valueAt(i); 1438 } 1439 for (size_t i = 0; i < mInputs.size(); i++) { 1440 mpClientInterface->closeInput(mInputs.keyAt(i)); 1441 delete mInputs.valueAt(i); 1442 } 1443 for (size_t i = 0; i < mHwModules.size(); i++) { 1444 delete mHwModules[i]; 1445 } 1446 } 1447 1448 status_t AudioPolicyManagerBase::initCheck() 1449 { 1450 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 1451 } 1452 1453 #ifdef AUDIO_POLICY_TEST 1454 bool AudioPolicyManagerBase::threadLoop() 1455 { 1456 ALOGV("entering threadLoop()"); 1457 while (!exitPending()) 1458 { 1459 String8 command; 1460 int valueInt; 1461 String8 value; 1462 1463 Mutex::Autolock _l(mLock); 1464 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 1465 1466 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 1467 AudioParameter param = AudioParameter(command); 1468 1469 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 1470 valueInt != 0) { 1471 ALOGV("Test command %s received", command.string()); 1472 String8 target; 1473 if (param.get(String8("target"), target) != NO_ERROR) { 1474 target = "Manager"; 1475 } 1476 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 1477 param.remove(String8("test_cmd_policy_output")); 1478 mCurOutput = valueInt; 1479 } 1480 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 1481 param.remove(String8("test_cmd_policy_direct")); 1482 if (value == "false") { 1483 mDirectOutput = false; 1484 } else if (value == "true") { 1485 mDirectOutput = true; 1486 } 1487 } 1488 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 1489 param.remove(String8("test_cmd_policy_input")); 1490 mTestInput = valueInt; 1491 } 1492 1493 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 1494 param.remove(String8("test_cmd_policy_format")); 1495 int format = AudioSystem::INVALID_FORMAT; 1496 if (value == "PCM 16 bits") { 1497 format = AudioSystem::PCM_16_BIT; 1498 } else if (value == "PCM 8 bits") { 1499 format = AudioSystem::PCM_8_BIT; 1500 } else if (value == "Compressed MP3") { 1501 format = AudioSystem::MP3; 1502 } 1503 if (format != AudioSystem::INVALID_FORMAT) { 1504 if (target == "Manager") { 1505 mTestFormat = format; 1506 } else if (mTestOutputs[mCurOutput] != 0) { 1507 AudioParameter outputParam = AudioParameter(); 1508 outputParam.addInt(String8("format"), format); 1509 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 1510 } 1511 } 1512 } 1513 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 1514 param.remove(String8("test_cmd_policy_channels")); 1515 int channels = 0; 1516 1517 if (value == "Channels Stereo") { 1518 channels = AudioSystem::CHANNEL_OUT_STEREO; 1519 } else if (value == "Channels Mono") { 1520 channels = AudioSystem::CHANNEL_OUT_MONO; 1521 } 1522 if (channels != 0) { 1523 if (target == "Manager") { 1524 mTestChannels = channels; 1525 } else if (mTestOutputs[mCurOutput] != 0) { 1526 AudioParameter outputParam = AudioParameter(); 1527 outputParam.addInt(String8("channels"), channels); 1528 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 1529 } 1530 } 1531 } 1532 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 1533 param.remove(String8("test_cmd_policy_sampleRate")); 1534 if (valueInt >= 0 && valueInt <= 96000) { 1535 int samplingRate = valueInt; 1536 if (target == "Manager") { 1537 mTestSamplingRate = samplingRate; 1538 } else if (mTestOutputs[mCurOutput] != 0) { 1539 AudioParameter outputParam = AudioParameter(); 1540 outputParam.addInt(String8("sampling_rate"), samplingRate); 1541 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 1542 } 1543 } 1544 } 1545 1546 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 1547 param.remove(String8("test_cmd_policy_reopen")); 1548 1549 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput); 1550 mpClientInterface->closeOutput(mPrimaryOutput); 1551 1552 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 1553 1554 delete mOutputs.valueFor(mPrimaryOutput); 1555 mOutputs.removeItem(mPrimaryOutput); 1556 1557 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL); 1558 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 1559 mPrimaryOutput = mpClientInterface->openOutput(moduleHandle, 1560 &outputDesc->mDevice, 1561 &outputDesc->mSamplingRate, 1562 &outputDesc->mFormat, 1563 &outputDesc->mChannelMask, 1564 &outputDesc->mLatency, 1565 outputDesc->mFlags); 1566 if (mPrimaryOutput == 0) { 1567 ALOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d", 1568 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 1569 } else { 1570 AudioParameter outputCmd = AudioParameter(); 1571 outputCmd.addInt(String8("set_id"), 0); 1572 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 1573 addOutput(mPrimaryOutput, outputDesc); 1574 } 1575 } 1576 1577 1578 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 1579 } 1580 } 1581 return false; 1582 } 1583 1584 void AudioPolicyManagerBase::exit() 1585 { 1586 { 1587 AutoMutex _l(mLock); 1588 requestExit(); 1589 mWaitWorkCV.signal(); 1590 } 1591 requestExitAndWait(); 1592 } 1593 1594 int AudioPolicyManagerBase::testOutputIndex(audio_io_handle_t output) 1595 { 1596 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 1597 if (output == mTestOutputs[i]) return i; 1598 } 1599 return 0; 1600 } 1601 #endif //AUDIO_POLICY_TEST 1602 1603 // --- 1604 1605 void AudioPolicyManagerBase::addOutput(audio_io_handle_t id, AudioOutputDescriptor *outputDesc) 1606 { 1607 outputDesc->mId = id; 1608 mOutputs.add(id, outputDesc); 1609 } 1610 1611 1612 status_t AudioPolicyManagerBase::checkOutputsForDevice(audio_devices_t device, 1613 AudioSystem::device_connection_state state, 1614 SortedVector<audio_io_handle_t>& outputs) 1615 { 1616 AudioOutputDescriptor *desc; 1617 1618 if (state == AudioSystem::DEVICE_STATE_AVAILABLE) { 1619 // first list already open outputs that can be routed to this device 1620 for (size_t i = 0; i < mOutputs.size(); i++) { 1621 desc = mOutputs.valueAt(i); 1622 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices & device)) { 1623 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 1624 outputs.add(mOutputs.keyAt(i)); 1625 } 1626 } 1627 // then look for output profiles that can be routed to this device 1628 SortedVector<IOProfile *> profiles; 1629 for (size_t i = 0; i < mHwModules.size(); i++) 1630 { 1631 if (mHwModules[i]->mHandle == 0) { 1632 continue; 1633 } 1634 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 1635 { 1636 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices & device) { 1637 ALOGV("checkOutputsForDevice(): adding profile %d from module %d", j, i); 1638 profiles.add(mHwModules[i]->mOutputProfiles[j]); 1639 } 1640 } 1641 } 1642 1643 if (profiles.isEmpty() && outputs.isEmpty()) { 1644 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 1645 return BAD_VALUE; 1646 } 1647 1648 // open outputs for matching profiles if needed. Direct outputs are also opened to 1649 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 1650 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 1651 IOProfile *profile = profiles[profile_index]; 1652 1653 // nothing to do if one output is already opened for this profile 1654 size_t j; 1655 for (j = 0; j < mOutputs.size(); j++) { 1656 desc = mOutputs.valueAt(j); 1657 if (!desc->isDuplicated() && desc->mProfile == profile) { 1658 break; 1659 } 1660 } 1661 if (j != mOutputs.size()) { 1662 continue; 1663 } 1664 1665 ALOGV("opening output for device %08x", device); 1666 desc = new AudioOutputDescriptor(profile); 1667 desc->mDevice = device; 1668 audio_io_handle_t output = mpClientInterface->openOutput(profile->mModule->mHandle, 1669 &desc->mDevice, 1670 &desc->mSamplingRate, 1671 &desc->mFormat, 1672 &desc->mChannelMask, 1673 &desc->mLatency, 1674 desc->mFlags); 1675 if (output != 0) { 1676 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1677 String8 reply; 1678 char *value; 1679 if (profile->mSamplingRates[0] == 0) { 1680 reply = mpClientInterface->getParameters(output, 1681 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 1682 ALOGV("checkOutputsForDevice() direct output sup sampling rates %s", 1683 reply.string()); 1684 value = strpbrk((char *)reply.string(), "="); 1685 if (value != NULL) { 1686 loadSamplingRates(value + 1, profile); 1687 } 1688 } 1689 if (profile->mFormats[0] == 0) { 1690 reply = mpClientInterface->getParameters(output, 1691 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 1692 ALOGV("checkOutputsForDevice() direct output sup formats %s", 1693 reply.string()); 1694 value = strpbrk((char *)reply.string(), "="); 1695 if (value != NULL) { 1696 loadFormats(value + 1, profile); 1697 } 1698 } 1699 if (profile->mChannelMasks[0] == 0) { 1700 reply = mpClientInterface->getParameters(output, 1701 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 1702 ALOGV("checkOutputsForDevice() direct output sup channel masks %s", 1703 reply.string()); 1704 value = strpbrk((char *)reply.string(), "="); 1705 if (value != NULL) { 1706 loadOutChannels(value + 1, profile); 1707 } 1708 } 1709 if (((profile->mSamplingRates[0] == 0) && 1710 (profile->mSamplingRates.size() < 2)) || 1711 ((profile->mFormats[0] == 0) && 1712 (profile->mFormats.size() < 2)) || 1713 ((profile->mFormats[0] == 0) && 1714 (profile->mChannelMasks.size() < 2))) { 1715 ALOGW("checkOutputsForDevice() direct output missing param"); 1716 mpClientInterface->closeOutput(output); 1717 output = 0; 1718 } else { 1719 addOutput(output, desc); 1720 } 1721 } else { 1722 audio_io_handle_t duplicatedOutput = 0; 1723 // add output descriptor 1724 addOutput(output, desc); 1725 // set initial stream volume for device 1726 applyStreamVolumes(output, device, 0, true); 1727 1728 //TODO: configure audio effect output stage here 1729 1730 // open a duplicating output thread for the new output and the primary output 1731 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 1732 mPrimaryOutput); 1733 if (duplicatedOutput != 0) { 1734 // add duplicated output descriptor 1735 AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor(NULL); 1736 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 1737 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 1738 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 1739 dupOutputDesc->mFormat = desc->mFormat; 1740 dupOutputDesc->mChannelMask = desc->mChannelMask; 1741 dupOutputDesc->mLatency = desc->mLatency; 1742 addOutput(duplicatedOutput, dupOutputDesc); 1743 applyStreamVolumes(duplicatedOutput, device, 0, true); 1744 } else { 1745 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 1746 mPrimaryOutput, output); 1747 mpClientInterface->closeOutput(output); 1748 mOutputs.removeItem(output); 1749 output = 0; 1750 } 1751 } 1752 } 1753 if (output == 0) { 1754 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 1755 delete desc; 1756 profiles.removeAt(profile_index); 1757 profile_index--; 1758 } else { 1759 outputs.add(output); 1760 ALOGV("checkOutputsForDevice(): adding output %d", output); 1761 } 1762 } 1763 1764 if (profiles.isEmpty()) { 1765 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 1766 return BAD_VALUE; 1767 } 1768 } else { 1769 // check if one opened output is not needed any more after disconnecting one device 1770 for (size_t i = 0; i < mOutputs.size(); i++) { 1771 desc = mOutputs.valueAt(i); 1772 if (!desc->isDuplicated() && 1773 !(desc->mProfile->mSupportedDevices & mAvailableOutputDevices)) { 1774 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i)); 1775 outputs.add(mOutputs.keyAt(i)); 1776 } 1777 } 1778 for (size_t i = 0; i < mHwModules.size(); i++) 1779 { 1780 if (mHwModules[i]->mHandle == 0) { 1781 continue; 1782 } 1783 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 1784 { 1785 IOProfile *profile = mHwModules[i]->mOutputProfiles[j]; 1786 if ((profile->mSupportedDevices & device) && 1787 (profile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) { 1788 ALOGV("checkOutputsForDevice(): clearing direct output profile %d on module %d", 1789 j, i); 1790 if (profile->mSamplingRates[0] == 0) { 1791 profile->mSamplingRates.clear(); 1792 profile->mSamplingRates.add(0); 1793 } 1794 if (profile->mFormats[0] == 0) { 1795 profile->mFormats.clear(); 1796 profile->mFormats.add((audio_format_t)0); 1797 } 1798 if (profile->mChannelMasks[0] == 0) { 1799 profile->mChannelMasks.clear(); 1800 profile->mChannelMasks.add((audio_channel_mask_t)0); 1801 } 1802 } 1803 } 1804 } 1805 } 1806 return NO_ERROR; 1807 } 1808 1809 void AudioPolicyManagerBase::closeOutput(audio_io_handle_t output) 1810 { 1811 ALOGV("closeOutput(%d)", output); 1812 1813 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 1814 if (outputDesc == NULL) { 1815 ALOGW("closeOutput() unknown output %d", output); 1816 return; 1817 } 1818 1819 // look for duplicated outputs connected to the output being removed. 1820 for (size_t i = 0; i < mOutputs.size(); i++) { 1821 AudioOutputDescriptor *dupOutputDesc = mOutputs.valueAt(i); 1822 if (dupOutputDesc->isDuplicated() && 1823 (dupOutputDesc->mOutput1 == outputDesc || 1824 dupOutputDesc->mOutput2 == outputDesc)) { 1825 AudioOutputDescriptor *outputDesc2; 1826 if (dupOutputDesc->mOutput1 == outputDesc) { 1827 outputDesc2 = dupOutputDesc->mOutput2; 1828 } else { 1829 outputDesc2 = dupOutputDesc->mOutput1; 1830 } 1831 // As all active tracks on duplicated output will be deleted, 1832 // and as they were also referenced on the other output, the reference 1833 // count for their stream type must be adjusted accordingly on 1834 // the other output. 1835 for (int j = 0; j < (int)AudioSystem::NUM_STREAM_TYPES; j++) { 1836 int refCount = dupOutputDesc->mRefCount[j]; 1837 outputDesc2->changeRefCount((AudioSystem::stream_type)j,-refCount); 1838 } 1839 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 1840 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 1841 1842 mpClientInterface->closeOutput(duplicatedOutput); 1843 delete mOutputs.valueFor(duplicatedOutput); 1844 mOutputs.removeItem(duplicatedOutput); 1845 } 1846 } 1847 1848 AudioParameter param; 1849 param.add(String8("closing"), String8("true")); 1850 mpClientInterface->setParameters(output, param.toString()); 1851 1852 mpClientInterface->closeOutput(output); 1853 delete outputDesc; 1854 mOutputs.removeItem(output); 1855 mPreviousOutputs = mOutputs; 1856 } 1857 1858 SortedVector<audio_io_handle_t> AudioPolicyManagerBase::getOutputsForDevice(audio_devices_t device, 1859 DefaultKeyedVector<audio_io_handle_t, AudioOutputDescriptor *> openOutputs) 1860 { 1861 SortedVector<audio_io_handle_t> outputs; 1862 1863 ALOGVV("getOutputsForDevice() device %04x", device); 1864 for (size_t i = 0; i < openOutputs.size(); i++) { 1865 ALOGVV("output %d isDuplicated=%d device=%04x", 1866 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 1867 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 1868 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 1869 outputs.add(openOutputs.keyAt(i)); 1870 } 1871 } 1872 return outputs; 1873 } 1874 1875 bool AudioPolicyManagerBase::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 1876 SortedVector<audio_io_handle_t>& outputs2) 1877 { 1878 if (outputs1.size() != outputs2.size()) { 1879 return false; 1880 } 1881 for (size_t i = 0; i < outputs1.size(); i++) { 1882 if (outputs1[i] != outputs2[i]) { 1883 return false; 1884 } 1885 } 1886 return true; 1887 } 1888 1889 void AudioPolicyManagerBase::checkOutputForStrategy(routing_strategy strategy) 1890 { 1891 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 1892 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 1893 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 1894 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 1895 1896 if (!vectorsEqual(srcOutputs,dstOutputs)) { 1897 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 1898 strategy, srcOutputs[0], dstOutputs[0]); 1899 // mute strategy while moving tracks from one output to another 1900 for (size_t i = 0; i < srcOutputs.size(); i++) { 1901 AudioOutputDescriptor *desc = mOutputs.valueFor(srcOutputs[i]); 1902 if (desc->isStrategyActive(strategy)) { 1903 setStrategyMute(strategy, true, srcOutputs[i]); 1904 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 1905 } 1906 } 1907 1908 // Move effects associated to this strategy from previous output to new output 1909 if (strategy == STRATEGY_MEDIA) { 1910 int outIdx = 0; 1911 for (size_t i = 0; i < dstOutputs.size(); i++) { 1912 AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]); 1913 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) { 1914 outIdx = i; 1915 } 1916 } 1917 SortedVector<audio_io_handle_t> moved; 1918 for (size_t i = 0; i < mEffects.size(); i++) { 1919 EffectDescriptor *desc = mEffects.valueAt(i); 1920 if (desc->mSession == AUDIO_SESSION_OUTPUT_MIX && 1921 desc->mIo != dstOutputs[outIdx]) { 1922 if (moved.indexOf(desc->mIo) < 0) { 1923 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 1924 mEffects.keyAt(i), dstOutputs[outIdx]); 1925 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, desc->mIo, 1926 dstOutputs[outIdx]); 1927 moved.add(desc->mIo); 1928 } 1929 desc->mIo = dstOutputs[outIdx]; 1930 } 1931 } 1932 } 1933 // Move tracks associated to this strategy from previous output to new output 1934 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) { 1935 if (getStrategy((AudioSystem::stream_type)i) == strategy) { 1936 //FIXME see fixme on name change 1937 mpClientInterface->setStreamOutput((AudioSystem::stream_type)i, 1938 dstOutputs[0] /* ignored */); 1939 } 1940 } 1941 } 1942 } 1943 1944 void AudioPolicyManagerBase::checkOutputForAllStrategies() 1945 { 1946 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 1947 checkOutputForStrategy(STRATEGY_PHONE); 1948 checkOutputForStrategy(STRATEGY_SONIFICATION); 1949 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 1950 checkOutputForStrategy(STRATEGY_MEDIA); 1951 checkOutputForStrategy(STRATEGY_DTMF); 1952 } 1953 1954 audio_io_handle_t AudioPolicyManagerBase::getA2dpOutput() 1955 { 1956 if (!mHasA2dp) { 1957 return 0; 1958 } 1959 1960 for (size_t i = 0; i < mOutputs.size(); i++) { 1961 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i); 1962 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 1963 return mOutputs.keyAt(i); 1964 } 1965 } 1966 1967 return 0; 1968 } 1969 1970 void AudioPolicyManagerBase::checkA2dpSuspend() 1971 { 1972 if (!mHasA2dp) { 1973 return; 1974 } 1975 audio_io_handle_t a2dpOutput = getA2dpOutput(); 1976 if (a2dpOutput == 0) { 1977 return; 1978 } 1979 1980 // suspend A2DP output if: 1981 // (NOT already suspended) && 1982 // ((SCO device is connected && 1983 // (forced usage for communication || for record is SCO))) || 1984 // (phone state is ringing || in call) 1985 // 1986 // restore A2DP output if: 1987 // (Already suspended) && 1988 // ((SCO device is NOT connected || 1989 // (forced usage NOT for communication && NOT for record is SCO))) && 1990 // (phone state is NOT ringing && NOT in call) 1991 // 1992 if (mA2dpSuspended) { 1993 if (((mScoDeviceAddress == "") || 1994 ((mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO) && 1995 (mForceUse[AudioSystem::FOR_RECORD] != AudioSystem::FORCE_BT_SCO))) && 1996 ((mPhoneState != AudioSystem::MODE_IN_CALL) && 1997 (mPhoneState != AudioSystem::MODE_RINGTONE))) { 1998 1999 mpClientInterface->restoreOutput(a2dpOutput); 2000 mA2dpSuspended = false; 2001 } 2002 } else { 2003 if (((mScoDeviceAddress != "") && 2004 ((mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) || 2005 (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO))) || 2006 ((mPhoneState == AudioSystem::MODE_IN_CALL) || 2007 (mPhoneState == AudioSystem::MODE_RINGTONE))) { 2008 2009 mpClientInterface->suspendOutput(a2dpOutput); 2010 mA2dpSuspended = true; 2011 } 2012 } 2013 } 2014 2015 audio_devices_t AudioPolicyManagerBase::getNewDevice(audio_io_handle_t output, bool fromCache) 2016 { 2017 audio_devices_t device = AUDIO_DEVICE_NONE; 2018 2019 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 2020 // check the following by order of priority to request a routing change if necessary: 2021 // 1: the strategy enforced audible is active on the output: 2022 // use device for strategy enforced audible 2023 // 2: we are in call or the strategy phone is active on the output: 2024 // use device for strategy phone 2025 // 3: the strategy sonification is active on the output: 2026 // use device for strategy sonification 2027 // 4: the strategy "respectful" sonification is active on the output: 2028 // use device for strategy "respectful" sonification 2029 // 5: the strategy media is active on the output: 2030 // use device for strategy media 2031 // 6: the strategy DTMF is active on the output: 2032 // use device for strategy DTMF 2033 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 2034 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 2035 } else if (isInCall() || 2036 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 2037 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 2038 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 2039 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 2040 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 2041 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 2042 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 2043 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 2044 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 2045 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 2046 } 2047 2048 ALOGV("getNewDevice() selected device %x", device); 2049 return device; 2050 } 2051 2052 uint32_t AudioPolicyManagerBase::getStrategyForStream(AudioSystem::stream_type stream) { 2053 return (uint32_t)getStrategy(stream); 2054 } 2055 2056 audio_devices_t AudioPolicyManagerBase::getDevicesForStream(AudioSystem::stream_type stream) { 2057 audio_devices_t devices; 2058 // By checking the range of stream before calling getStrategy, we avoid 2059 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 2060 // and then return STRATEGY_MEDIA, but we want to return the empty set. 2061 if (stream < (AudioSystem::stream_type) 0 || stream >= AudioSystem::NUM_STREAM_TYPES) { 2062 devices = AUDIO_DEVICE_NONE; 2063 } else { 2064 AudioPolicyManagerBase::routing_strategy strategy = getStrategy(stream); 2065 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 2066 } 2067 return devices; 2068 } 2069 2070 AudioPolicyManagerBase::routing_strategy AudioPolicyManagerBase::getStrategy( 2071 AudioSystem::stream_type stream) { 2072 // stream to strategy mapping 2073 switch (stream) { 2074 case AudioSystem::VOICE_CALL: 2075 case AudioSystem::BLUETOOTH_SCO: 2076 return STRATEGY_PHONE; 2077 case AudioSystem::RING: 2078 case AudioSystem::ALARM: 2079 return STRATEGY_SONIFICATION; 2080 case AudioSystem::NOTIFICATION: 2081 return STRATEGY_SONIFICATION_RESPECTFUL; 2082 case AudioSystem::DTMF: 2083 return STRATEGY_DTMF; 2084 default: 2085 ALOGE("unknown stream type"); 2086 case AudioSystem::SYSTEM: 2087 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 2088 // while key clicks are played produces a poor result 2089 case AudioSystem::TTS: 2090 case AudioSystem::MUSIC: 2091 return STRATEGY_MEDIA; 2092 case AudioSystem::ENFORCED_AUDIBLE: 2093 return STRATEGY_ENFORCED_AUDIBLE; 2094 } 2095 } 2096 2097 void AudioPolicyManagerBase::handleNotificationRoutingForStream(AudioSystem::stream_type stream) { 2098 switch(stream) { 2099 case AudioSystem::MUSIC: 2100 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 2101 updateDevicesAndOutputs(); 2102 break; 2103 default: 2104 break; 2105 } 2106 } 2107 2108 audio_devices_t AudioPolicyManagerBase::getDeviceForStrategy(routing_strategy strategy, 2109 bool fromCache) 2110 { 2111 uint32_t device = AUDIO_DEVICE_NONE; 2112 2113 if (fromCache) { 2114 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 2115 strategy, mDeviceForStrategy[strategy]); 2116 return mDeviceForStrategy[strategy]; 2117 } 2118 2119 switch (strategy) { 2120 2121 case STRATEGY_SONIFICATION_RESPECTFUL: 2122 if (isInCall()) { 2123 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 2124 } else if (isStreamActiveRemotely(AudioSystem::MUSIC, 2125 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 2126 // while media is playing on a remote device, use the the sonification behavior. 2127 // Note that we test this usecase before testing if media is playing because 2128 // the isStreamActive() method only informs about the activity of a stream, not 2129 // if it's for local playback. Note also that we use the same delay between both tests 2130 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 2131 } else if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 2132 // while media is playing (or has recently played), use the same device 2133 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 2134 } else { 2135 // when media is not playing anymore, fall back on the sonification behavior 2136 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 2137 } 2138 2139 break; 2140 2141 case STRATEGY_DTMF: 2142 if (!isInCall()) { 2143 // when off call, DTMF strategy follows the same rules as MEDIA strategy 2144 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 2145 break; 2146 } 2147 // when in call, DTMF and PHONE strategies follow the same rules 2148 // FALL THROUGH 2149 2150 case STRATEGY_PHONE: 2151 // for phone strategy, we first consider the forced use and then the available devices by order 2152 // of priority 2153 switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) { 2154 case AudioSystem::FORCE_BT_SCO: 2155 if (!isInCall() || strategy != STRATEGY_DTMF) { 2156 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 2157 if (device) break; 2158 } 2159 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 2160 if (device) break; 2161 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 2162 if (device) break; 2163 // if SCO device is requested but no SCO device is available, fall back to default case 2164 // FALL THROUGH 2165 2166 default: // FORCE_NONE 2167 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 2168 if (mHasA2dp && !isInCall() && 2169 (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && 2170 (getA2dpOutput() != 0) && !mA2dpSuspended) { 2171 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 2172 if (device) break; 2173 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 2174 if (device) break; 2175 } 2176 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 2177 if (device) break; 2178 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET; 2179 if (device) break; 2180 if (mPhoneState != AudioSystem::MODE_IN_CALL) { 2181 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY; 2182 if (device) break; 2183 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE; 2184 if (device) break; 2185 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 2186 if (device) break; 2187 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL; 2188 if (device) break; 2189 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 2190 if (device) break; 2191 } 2192 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_EARPIECE; 2193 if (device) break; 2194 device = mDefaultOutputDevice; 2195 if (device == AUDIO_DEVICE_NONE) { 2196 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 2197 } 2198 break; 2199 2200 case AudioSystem::FORCE_SPEAKER: 2201 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 2202 // A2DP speaker when forcing to speaker output 2203 if (mHasA2dp && !isInCall() && 2204 (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && 2205 (getA2dpOutput() != 0) && !mA2dpSuspended) { 2206 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 2207 if (device) break; 2208 } 2209 if (mPhoneState != AudioSystem::MODE_IN_CALL) { 2210 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY; 2211 if (device) break; 2212 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE; 2213 if (device) break; 2214 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 2215 if (device) break; 2216 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL; 2217 if (device) break; 2218 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 2219 if (device) break; 2220 } 2221 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER; 2222 if (device) break; 2223 device = mDefaultOutputDevice; 2224 if (device == AUDIO_DEVICE_NONE) { 2225 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 2226 } 2227 break; 2228 } 2229 break; 2230 2231 case STRATEGY_SONIFICATION: 2232 2233 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 2234 // handleIncallSonification(). 2235 if (isInCall()) { 2236 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 2237 break; 2238 } 2239 // FALL THROUGH 2240 2241 case STRATEGY_ENFORCED_AUDIBLE: 2242 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 2243 // except: 2244 // - when in call where it doesn't default to STRATEGY_PHONE behavior 2245 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 2246 2247 if ((strategy == STRATEGY_SONIFICATION) || 2248 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_SYSTEM_ENFORCED)) { 2249 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER; 2250 if (device == AUDIO_DEVICE_NONE) { 2251 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 2252 } 2253 } 2254 // The second device used for sonification is the same as the device used by media strategy 2255 // FALL THROUGH 2256 2257 case STRATEGY_MEDIA: { 2258 uint32_t device2 = AUDIO_DEVICE_NONE; 2259 if (strategy != STRATEGY_SONIFICATION) { 2260 // no sonification on remote submix (e.g. WFD) 2261 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 2262 } 2263 if ((device2 == AUDIO_DEVICE_NONE) && 2264 mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && 2265 (getA2dpOutput() != 0) && !mA2dpSuspended) { 2266 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 2267 if (device2 == AUDIO_DEVICE_NONE) { 2268 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 2269 } 2270 if (device2 == AUDIO_DEVICE_NONE) { 2271 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 2272 } 2273 } 2274 if (device2 == AUDIO_DEVICE_NONE) { 2275 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 2276 } 2277 if (device2 == AUDIO_DEVICE_NONE) { 2278 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET; 2279 } 2280 if (device2 == AUDIO_DEVICE_NONE) { 2281 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY; 2282 } 2283 if (device2 == AUDIO_DEVICE_NONE) { 2284 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE; 2285 } 2286 if (device2 == AUDIO_DEVICE_NONE) { 2287 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 2288 } 2289 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 2290 // no sonification on aux digital (e.g. HDMI) 2291 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL; 2292 } 2293 if ((device2 == AUDIO_DEVICE_NONE) && 2294 (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_ANALOG_DOCK)) { 2295 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 2296 } 2297 if (device2 == AUDIO_DEVICE_NONE) { 2298 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER; 2299 } 2300 2301 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 2302 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 2303 device |= device2; 2304 if (device) break; 2305 device = mDefaultOutputDevice; 2306 if (device == AUDIO_DEVICE_NONE) { 2307 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 2308 } 2309 } break; 2310 2311 default: 2312 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 2313 break; 2314 } 2315 2316 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 2317 return device; 2318 } 2319 2320 void AudioPolicyManagerBase::updateDevicesAndOutputs() 2321 { 2322 for (int i = 0; i < NUM_STRATEGIES; i++) { 2323 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 2324 } 2325 mPreviousOutputs = mOutputs; 2326 } 2327 2328 uint32_t AudioPolicyManagerBase::checkDeviceMuteStrategies(AudioOutputDescriptor *outputDesc, 2329 audio_devices_t prevDevice, 2330 uint32_t delayMs) 2331 { 2332 // mute/unmute strategies using an incompatible device combination 2333 // if muting, wait for the audio in pcm buffer to be drained before proceeding 2334 // if unmuting, unmute only after the specified delay 2335 if (outputDesc->isDuplicated()) { 2336 return 0; 2337 } 2338 2339 uint32_t muteWaitMs = 0; 2340 audio_devices_t device = outputDesc->device(); 2341 bool shouldMute = outputDesc->isActive() && (AudioSystem::popCount(device) >= 2); 2342 // temporary mute output if device selection changes to avoid volume bursts due to 2343 // different per device volumes 2344 bool tempMute = outputDesc->isActive() && (device != prevDevice); 2345 2346 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 2347 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 2348 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 2349 bool doMute = false; 2350 2351 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 2352 doMute = true; 2353 outputDesc->mStrategyMutedByDevice[i] = true; 2354 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 2355 doMute = true; 2356 outputDesc->mStrategyMutedByDevice[i] = false; 2357 } 2358 if (doMute || tempMute) { 2359 for (size_t j = 0; j < mOutputs.size(); j++) { 2360 AudioOutputDescriptor *desc = mOutputs.valueAt(j); 2361 // skip output if it does not share any device with current output 2362 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 2363 == AUDIO_DEVICE_NONE) { 2364 continue; 2365 } 2366 audio_io_handle_t curOutput = mOutputs.keyAt(j); 2367 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 2368 mute ? "muting" : "unmuting", i, curDevice, curOutput); 2369 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 2370 if (desc->isStrategyActive((routing_strategy)i)) { 2371 // do tempMute only for current output 2372 if (tempMute && (desc == outputDesc)) { 2373 setStrategyMute((routing_strategy)i, true, curOutput); 2374 setStrategyMute((routing_strategy)i, false, curOutput, 2375 desc->latency() * 2, device); 2376 } 2377 if ((tempMute && (desc == outputDesc)) || mute) { 2378 if (muteWaitMs < desc->latency()) { 2379 muteWaitMs = desc->latency(); 2380 } 2381 } 2382 } 2383 } 2384 } 2385 } 2386 2387 // FIXME: should not need to double latency if volume could be applied immediately by the 2388 // audioflinger mixer. We must account for the delay between now and the next time 2389 // the audioflinger thread for this output will process a buffer (which corresponds to 2390 // one buffer size, usually 1/2 or 1/4 of the latency). 2391 muteWaitMs *= 2; 2392 // wait for the PCM output buffers to empty before proceeding with the rest of the command 2393 if (muteWaitMs > delayMs) { 2394 muteWaitMs -= delayMs; 2395 usleep(muteWaitMs * 1000); 2396 return muteWaitMs; 2397 } 2398 return 0; 2399 } 2400 2401 uint32_t AudioPolicyManagerBase::setOutputDevice(audio_io_handle_t output, 2402 audio_devices_t device, 2403 bool force, 2404 int delayMs) 2405 { 2406 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 2407 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 2408 AudioParameter param; 2409 uint32_t muteWaitMs; 2410 2411 if (outputDesc->isDuplicated()) { 2412 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mId, device, force, delayMs); 2413 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mId, device, force, delayMs); 2414 return muteWaitMs; 2415 } 2416 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 2417 // output profile 2418 if ((device != AUDIO_DEVICE_NONE) && 2419 ((device & outputDesc->mProfile->mSupportedDevices) == 0)) { 2420 return 0; 2421 } 2422 2423 // filter devices according to output selected 2424 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices); 2425 2426 audio_devices_t prevDevice = outputDesc->mDevice; 2427 2428 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 2429 2430 if (device != AUDIO_DEVICE_NONE) { 2431 outputDesc->mDevice = device; 2432 } 2433 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 2434 2435 // Do not change the routing if: 2436 // - the requested device is AUDIO_DEVICE_NONE 2437 // - the requested device is the same as current device and force is not specified. 2438 // Doing this check here allows the caller to call setOutputDevice() without conditions 2439 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) { 2440 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output); 2441 return muteWaitMs; 2442 } 2443 2444 ALOGV("setOutputDevice() changing device"); 2445 // do the routing 2446 param.addInt(String8(AudioParameter::keyRouting), (int)device); 2447 mpClientInterface->setParameters(output, param.toString(), delayMs); 2448 2449 // update stream volumes according to new device 2450 applyStreamVolumes(output, device, delayMs); 2451 2452 return muteWaitMs; 2453 } 2454 2455 AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getInputProfile(audio_devices_t device, 2456 uint32_t samplingRate, 2457 uint32_t format, 2458 uint32_t channelMask) 2459 { 2460 // Choose an input profile based on the requested capture parameters: select the first available 2461 // profile supporting all requested parameters. 2462 2463 for (size_t i = 0; i < mHwModules.size(); i++) 2464 { 2465 if (mHwModules[i]->mHandle == 0) { 2466 continue; 2467 } 2468 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2469 { 2470 IOProfile *profile = mHwModules[i]->mInputProfiles[j]; 2471 if (profile->isCompatibleProfile(device, samplingRate, format, 2472 channelMask,(audio_output_flags_t)0)) { 2473 return profile; 2474 } 2475 } 2476 } 2477 return NULL; 2478 } 2479 2480 audio_devices_t AudioPolicyManagerBase::getDeviceForInputSource(int inputSource) 2481 { 2482 uint32_t device = AUDIO_DEVICE_NONE; 2483 2484 switch (inputSource) { 2485 case AUDIO_SOURCE_VOICE_UPLINK: 2486 if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) { 2487 device = AUDIO_DEVICE_IN_VOICE_CALL; 2488 break; 2489 } 2490 // FALL THROUGH 2491 2492 case AUDIO_SOURCE_DEFAULT: 2493 case AUDIO_SOURCE_MIC: 2494 case AUDIO_SOURCE_VOICE_RECOGNITION: 2495 case AUDIO_SOURCE_VOICE_COMMUNICATION: 2496 if (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO && 2497 mAvailableInputDevices & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 2498 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 2499 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_WIRED_HEADSET) { 2500 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 2501 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) { 2502 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 2503 } 2504 break; 2505 case AUDIO_SOURCE_CAMCORDER: 2506 if (mAvailableInputDevices & AUDIO_DEVICE_IN_BACK_MIC) { 2507 device = AUDIO_DEVICE_IN_BACK_MIC; 2508 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) { 2509 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 2510 } 2511 break; 2512 case AUDIO_SOURCE_VOICE_DOWNLINK: 2513 case AUDIO_SOURCE_VOICE_CALL: 2514 if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) { 2515 device = AUDIO_DEVICE_IN_VOICE_CALL; 2516 } 2517 break; 2518 case AUDIO_SOURCE_REMOTE_SUBMIX: 2519 if (mAvailableInputDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 2520 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 2521 } 2522 break; 2523 default: 2524 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 2525 break; 2526 } 2527 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 2528 return device; 2529 } 2530 2531 bool AudioPolicyManagerBase::isVirtualInputDevice(audio_devices_t device) 2532 { 2533 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 2534 device &= ~AUDIO_DEVICE_BIT_IN; 2535 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 2536 return true; 2537 } 2538 return false; 2539 } 2540 2541 audio_io_handle_t AudioPolicyManagerBase::getActiveInput(bool ignoreVirtualInputs) 2542 { 2543 for (size_t i = 0; i < mInputs.size(); i++) { 2544 const AudioInputDescriptor * input_descriptor = mInputs.valueAt(i); 2545 if ((input_descriptor->mRefCount > 0) 2546 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 2547 return mInputs.keyAt(i); 2548 } 2549 } 2550 return 0; 2551 } 2552 2553 2554 audio_devices_t AudioPolicyManagerBase::getDeviceForVolume(audio_devices_t device) 2555 { 2556 if (device == AUDIO_DEVICE_NONE) { 2557 // this happens when forcing a route update and no track is active on an output. 2558 // In this case the returned category is not important. 2559 device = AUDIO_DEVICE_OUT_SPEAKER; 2560 } else if (AudioSystem::popCount(device) > 1) { 2561 // Multiple device selection is either: 2562 // - speaker + one other device: give priority to speaker in this case. 2563 // - one A2DP device + another device: happens with duplicated output. In this case 2564 // retain the device on the A2DP output as the other must not correspond to an active 2565 // selection if not the speaker. 2566 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 2567 device = AUDIO_DEVICE_OUT_SPEAKER; 2568 } else { 2569 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 2570 } 2571 } 2572 2573 ALOGW_IF(AudioSystem::popCount(device) != 1, 2574 "getDeviceForVolume() invalid device combination: %08x", 2575 device); 2576 2577 return device; 2578 } 2579 2580 AudioPolicyManagerBase::device_category AudioPolicyManagerBase::getDeviceCategory(audio_devices_t device) 2581 { 2582 switch(getDeviceForVolume(device)) { 2583 case AUDIO_DEVICE_OUT_EARPIECE: 2584 return DEVICE_CATEGORY_EARPIECE; 2585 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 2586 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 2587 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 2588 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 2589 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 2590 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 2591 return DEVICE_CATEGORY_HEADSET; 2592 case AUDIO_DEVICE_OUT_SPEAKER: 2593 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 2594 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 2595 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 2596 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 2597 case AUDIO_DEVICE_OUT_USB_DEVICE: 2598 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 2599 default: 2600 return DEVICE_CATEGORY_SPEAKER; 2601 } 2602 } 2603 2604 float AudioPolicyManagerBase::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 2605 int indexInUi) 2606 { 2607 device_category deviceCategory = getDeviceCategory(device); 2608 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 2609 2610 // the volume index in the UI is relative to the min and max volume indices for this stream type 2611 int nbSteps = 1 + curve[VOLMAX].mIndex - 2612 curve[VOLMIN].mIndex; 2613 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 2614 (streamDesc.mIndexMax - streamDesc.mIndexMin); 2615 2616 // find what part of the curve this index volume belongs to, or if it's out of bounds 2617 int segment = 0; 2618 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 2619 return 0.0f; 2620 } else if (volIdx < curve[VOLKNEE1].mIndex) { 2621 segment = 0; 2622 } else if (volIdx < curve[VOLKNEE2].mIndex) { 2623 segment = 1; 2624 } else if (volIdx <= curve[VOLMAX].mIndex) { 2625 segment = 2; 2626 } else { // out of bounds 2627 return 1.0f; 2628 } 2629 2630 // linear interpolation in the attenuation table in dB 2631 float decibels = curve[segment].mDBAttenuation + 2632 ((float)(volIdx - curve[segment].mIndex)) * 2633 ( (curve[segment+1].mDBAttenuation - 2634 curve[segment].mDBAttenuation) / 2635 ((float)(curve[segment+1].mIndex - 2636 curve[segment].mIndex)) ); 2637 2638 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 2639 2640 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 2641 curve[segment].mIndex, volIdx, 2642 curve[segment+1].mIndex, 2643 curve[segment].mDBAttenuation, 2644 decibels, 2645 curve[segment+1].mDBAttenuation, 2646 amplification); 2647 2648 return amplification; 2649 } 2650 2651 const AudioPolicyManagerBase::VolumeCurvePoint 2652 AudioPolicyManagerBase::sDefaultVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2653 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 2654 }; 2655 2656 const AudioPolicyManagerBase::VolumeCurvePoint 2657 AudioPolicyManagerBase::sDefaultMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2658 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 2659 }; 2660 2661 const AudioPolicyManagerBase::VolumeCurvePoint 2662 AudioPolicyManagerBase::sSpeakerMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2663 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 2664 }; 2665 2666 const AudioPolicyManagerBase::VolumeCurvePoint 2667 AudioPolicyManagerBase::sSpeakerSonificationVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2668 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 2669 }; 2670 2671 // AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 2672 // AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets (See AudioService.java). 2673 // The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 2674 const AudioPolicyManagerBase::VolumeCurvePoint 2675 AudioPolicyManagerBase::sDefaultSystemVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2676 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 2677 }; 2678 2679 const AudioPolicyManagerBase::VolumeCurvePoint 2680 AudioPolicyManagerBase::sHeadsetSystemVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2681 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 2682 }; 2683 2684 const AudioPolicyManagerBase::VolumeCurvePoint 2685 AudioPolicyManagerBase::sDefaultVoiceVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2686 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 2687 }; 2688 2689 const AudioPolicyManagerBase::VolumeCurvePoint 2690 AudioPolicyManagerBase::sSpeakerVoiceVolumeCurve[AudioPolicyManagerBase::VOLCNT] = { 2691 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 2692 }; 2693 2694 const AudioPolicyManagerBase::VolumeCurvePoint 2695 *AudioPolicyManagerBase::sVolumeProfiles[AUDIO_STREAM_CNT] 2696 [AudioPolicyManagerBase::DEVICE_CATEGORY_CNT] = { 2697 { // AUDIO_STREAM_VOICE_CALL 2698 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 2699 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2700 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE 2701 }, 2702 { // AUDIO_STREAM_SYSTEM 2703 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 2704 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2705 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 2706 }, 2707 { // AUDIO_STREAM_RING 2708 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 2709 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2710 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 2711 }, 2712 { // AUDIO_STREAM_MUSIC 2713 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 2714 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2715 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE 2716 }, 2717 { // AUDIO_STREAM_ALARM 2718 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 2719 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2720 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 2721 }, 2722 { // AUDIO_STREAM_NOTIFICATION 2723 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 2724 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2725 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 2726 }, 2727 { // AUDIO_STREAM_BLUETOOTH_SCO 2728 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 2729 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2730 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE 2731 }, 2732 { // AUDIO_STREAM_ENFORCED_AUDIBLE 2733 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 2734 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2735 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 2736 }, 2737 { // AUDIO_STREAM_DTMF 2738 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 2739 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2740 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 2741 }, 2742 { // AUDIO_STREAM_TTS 2743 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 2744 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 2745 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE 2746 }, 2747 }; 2748 2749 void AudioPolicyManagerBase::initializeVolumeCurves() 2750 { 2751 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 2752 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 2753 mStreams[i].mVolumeCurve[j] = 2754 sVolumeProfiles[i][j]; 2755 } 2756 } 2757 } 2758 2759 float AudioPolicyManagerBase::computeVolume(int stream, 2760 int index, 2761 audio_io_handle_t output, 2762 audio_devices_t device) 2763 { 2764 float volume = 1.0; 2765 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 2766 StreamDescriptor &streamDesc = mStreams[stream]; 2767 2768 if (device == AUDIO_DEVICE_NONE) { 2769 device = outputDesc->device(); 2770 } 2771 2772 // if volume is not 0 (not muted), force media volume to max on digital output 2773 if (stream == AudioSystem::MUSIC && 2774 index != mStreams[stream].mIndexMin && 2775 (device == AUDIO_DEVICE_OUT_AUX_DIGITAL || 2776 device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET || 2777 device == AUDIO_DEVICE_OUT_USB_ACCESSORY || 2778 device == AUDIO_DEVICE_OUT_USB_DEVICE)) { 2779 return 1.0; 2780 } 2781 2782 volume = volIndexToAmpl(device, streamDesc, index); 2783 2784 // if a headset is connected, apply the following rules to ring tones and notifications 2785 // to avoid sound level bursts in user's ears: 2786 // - always attenuate ring tones and notifications volume by 6dB 2787 // - if music is playing, always limit the volume to current music volume, 2788 // with a minimum threshold at -36dB so that notification is always perceived. 2789 const routing_strategy stream_strategy = getStrategy((AudioSystem::stream_type)stream); 2790 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 2791 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 2792 AUDIO_DEVICE_OUT_WIRED_HEADSET | 2793 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 2794 ((stream_strategy == STRATEGY_SONIFICATION) 2795 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 2796 || (stream == AudioSystem::SYSTEM) 2797 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 2798 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_NONE))) && 2799 streamDesc.mCanBeMuted) { 2800 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 2801 // when the phone is ringing we must consider that music could have been paused just before 2802 // by the music application and behave as if music was active if the last music track was 2803 // just stopped 2804 if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 2805 mLimitRingtoneVolume) { 2806 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 2807 float musicVol = computeVolume(AudioSystem::MUSIC, 2808 mStreams[AudioSystem::MUSIC].getVolumeIndex(musicDevice), 2809 output, 2810 musicDevice); 2811 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 2812 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 2813 if (volume > minVol) { 2814 volume = minVol; 2815 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 2816 } 2817 } 2818 } 2819 2820 return volume; 2821 } 2822 2823 status_t AudioPolicyManagerBase::checkAndSetVolume(int stream, 2824 int index, 2825 audio_io_handle_t output, 2826 audio_devices_t device, 2827 int delayMs, 2828 bool force) 2829 { 2830 2831 // do not change actual stream volume if the stream is muted 2832 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 2833 ALOGVV("checkAndSetVolume() stream %d muted count %d", 2834 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 2835 return NO_ERROR; 2836 } 2837 2838 // do not change in call volume if bluetooth is connected and vice versa 2839 if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) || 2840 (stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) { 2841 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 2842 stream, mForceUse[AudioSystem::FOR_COMMUNICATION]); 2843 return INVALID_OPERATION; 2844 } 2845 2846 float volume = computeVolume(stream, index, output, device); 2847 // We actually change the volume if: 2848 // - the float value returned by computeVolume() changed 2849 // - the force flag is set 2850 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 2851 force) { 2852 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 2853 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 2854 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 2855 // enabled 2856 if (stream == AudioSystem::BLUETOOTH_SCO) { 2857 mpClientInterface->setStreamVolume(AudioSystem::VOICE_CALL, volume, output, delayMs); 2858 } 2859 mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output, delayMs); 2860 } 2861 2862 if (stream == AudioSystem::VOICE_CALL || 2863 stream == AudioSystem::BLUETOOTH_SCO) { 2864 float voiceVolume; 2865 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 2866 if (stream == AudioSystem::VOICE_CALL) { 2867 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 2868 } else { 2869 voiceVolume = 1.0; 2870 } 2871 2872 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 2873 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 2874 mLastVoiceVolume = voiceVolume; 2875 } 2876 } 2877 2878 return NO_ERROR; 2879 } 2880 2881 void AudioPolicyManagerBase::applyStreamVolumes(audio_io_handle_t output, 2882 audio_devices_t device, 2883 int delayMs, 2884 bool force) 2885 { 2886 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 2887 2888 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { 2889 checkAndSetVolume(stream, 2890 mStreams[stream].getVolumeIndex(device), 2891 output, 2892 device, 2893 delayMs, 2894 force); 2895 } 2896 } 2897 2898 void AudioPolicyManagerBase::setStrategyMute(routing_strategy strategy, 2899 bool on, 2900 audio_io_handle_t output, 2901 int delayMs, 2902 audio_devices_t device) 2903 { 2904 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 2905 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { 2906 if (getStrategy((AudioSystem::stream_type)stream) == strategy) { 2907 setStreamMute(stream, on, output, delayMs, device); 2908 } 2909 } 2910 } 2911 2912 void AudioPolicyManagerBase::setStreamMute(int stream, 2913 bool on, 2914 audio_io_handle_t output, 2915 int delayMs, 2916 audio_devices_t device) 2917 { 2918 StreamDescriptor &streamDesc = mStreams[stream]; 2919 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); 2920 if (device == AUDIO_DEVICE_NONE) { 2921 device = outputDesc->device(); 2922 } 2923 2924 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 2925 stream, on, output, outputDesc->mMuteCount[stream], device); 2926 2927 if (on) { 2928 if (outputDesc->mMuteCount[stream] == 0) { 2929 if (streamDesc.mCanBeMuted && 2930 ((stream != AudioSystem::ENFORCED_AUDIBLE) || 2931 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_NONE))) { 2932 checkAndSetVolume(stream, 0, output, device, delayMs); 2933 } 2934 } 2935 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 2936 outputDesc->mMuteCount[stream]++; 2937 } else { 2938 if (outputDesc->mMuteCount[stream] == 0) { 2939 ALOGV("setStreamMute() unmuting non muted stream!"); 2940 return; 2941 } 2942 if (--outputDesc->mMuteCount[stream] == 0) { 2943 checkAndSetVolume(stream, 2944 streamDesc.getVolumeIndex(device), 2945 output, 2946 device, 2947 delayMs); 2948 } 2949 } 2950 } 2951 2952 void AudioPolicyManagerBase::handleIncallSonification(int stream, bool starting, bool stateChange) 2953 { 2954 // if the stream pertains to sonification strategy and we are in call we must 2955 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 2956 // in the device used for phone strategy and play the tone if the selected device does not 2957 // interfere with the device used for phone strategy 2958 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 2959 // many times as there are active tracks on the output 2960 const routing_strategy stream_strategy = getStrategy((AudioSystem::stream_type)stream); 2961 if ((stream_strategy == STRATEGY_SONIFICATION) || 2962 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 2963 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput); 2964 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 2965 stream, starting, outputDesc->mDevice, stateChange); 2966 if (outputDesc->mRefCount[stream]) { 2967 int muteCount = 1; 2968 if (stateChange) { 2969 muteCount = outputDesc->mRefCount[stream]; 2970 } 2971 if (AudioSystem::isLowVisibility((AudioSystem::stream_type)stream)) { 2972 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 2973 for (int i = 0; i < muteCount; i++) { 2974 setStreamMute(stream, starting, mPrimaryOutput); 2975 } 2976 } else { 2977 ALOGV("handleIncallSonification() high visibility"); 2978 if (outputDesc->device() & 2979 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 2980 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 2981 for (int i = 0; i < muteCount; i++) { 2982 setStreamMute(stream, starting, mPrimaryOutput); 2983 } 2984 } 2985 if (starting) { 2986 mpClientInterface->startTone(ToneGenerator::TONE_SUP_CALL_WAITING, AudioSystem::VOICE_CALL); 2987 } else { 2988 mpClientInterface->stopTone(); 2989 } 2990 } 2991 } 2992 } 2993 } 2994 2995 bool AudioPolicyManagerBase::isInCall() 2996 { 2997 return isStateInCall(mPhoneState); 2998 } 2999 3000 bool AudioPolicyManagerBase::isStateInCall(int state) { 3001 return ((state == AudioSystem::MODE_IN_CALL) || 3002 (state == AudioSystem::MODE_IN_COMMUNICATION)); 3003 } 3004 3005 bool AudioPolicyManagerBase::needsDirectOuput(audio_stream_type_t stream, 3006 uint32_t samplingRate, 3007 audio_format_t format, 3008 audio_channel_mask_t channelMask, 3009 audio_output_flags_t flags, 3010 audio_devices_t device) 3011 { 3012 return ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) || 3013 (format != 0 && !AudioSystem::isLinearPCM(format))); 3014 } 3015 3016 uint32_t AudioPolicyManagerBase::getMaxEffectsCpuLoad() 3017 { 3018 return MAX_EFFECTS_CPU_LOAD; 3019 } 3020 3021 uint32_t AudioPolicyManagerBase::getMaxEffectsMemory() 3022 { 3023 return MAX_EFFECTS_MEMORY; 3024 } 3025 3026 // --- AudioOutputDescriptor class implementation 3027 3028 AudioPolicyManagerBase::AudioOutputDescriptor::AudioOutputDescriptor( 3029 const IOProfile *profile) 3030 : mId(0), mSamplingRate(0), mFormat((audio_format_t)0), 3031 mChannelMask((audio_channel_mask_t)0), mLatency(0), 3032 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), 3033 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 3034 { 3035 // clear usage count for all stream types 3036 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) { 3037 mRefCount[i] = 0; 3038 mCurVolume[i] = -1.0; 3039 mMuteCount[i] = 0; 3040 mStopTime[i] = 0; 3041 } 3042 for (int i = 0; i < NUM_STRATEGIES; i++) { 3043 mStrategyMutedByDevice[i] = false; 3044 } 3045 if (profile != NULL) { 3046 mSamplingRate = profile->mSamplingRates[0]; 3047 mFormat = profile->mFormats[0]; 3048 mChannelMask = profile->mChannelMasks[0]; 3049 mFlags = profile->mFlags; 3050 } 3051 } 3052 3053 audio_devices_t AudioPolicyManagerBase::AudioOutputDescriptor::device() const 3054 { 3055 if (isDuplicated()) { 3056 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 3057 } else { 3058 return mDevice; 3059 } 3060 } 3061 3062 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::latency() 3063 { 3064 if (isDuplicated()) { 3065 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 3066 } else { 3067 return mLatency; 3068 } 3069 } 3070 3071 bool AudioPolicyManagerBase::AudioOutputDescriptor::sharesHwModuleWith( 3072 const AudioOutputDescriptor *outputDesc) 3073 { 3074 if (isDuplicated()) { 3075 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 3076 } else if (outputDesc->isDuplicated()){ 3077 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 3078 } else { 3079 return (mProfile->mModule == outputDesc->mProfile->mModule); 3080 } 3081 } 3082 3083 void AudioPolicyManagerBase::AudioOutputDescriptor::changeRefCount(AudioSystem::stream_type stream, int delta) 3084 { 3085 // forward usage count change to attached outputs 3086 if (isDuplicated()) { 3087 mOutput1->changeRefCount(stream, delta); 3088 mOutput2->changeRefCount(stream, delta); 3089 } 3090 if ((delta + (int)mRefCount[stream]) < 0) { 3091 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", delta, stream, mRefCount[stream]); 3092 mRefCount[stream] = 0; 3093 return; 3094 } 3095 mRefCount[stream] += delta; 3096 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 3097 } 3098 3099 audio_devices_t AudioPolicyManagerBase::AudioOutputDescriptor::supportedDevices() 3100 { 3101 if (isDuplicated()) { 3102 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 3103 } else { 3104 return mProfile->mSupportedDevices ; 3105 } 3106 } 3107 3108 bool AudioPolicyManagerBase::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 3109 { 3110 return isStrategyActive(NUM_STRATEGIES, inPastMs); 3111 } 3112 3113 bool AudioPolicyManagerBase::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 3114 uint32_t inPastMs, 3115 nsecs_t sysTime) const 3116 { 3117 if ((sysTime == 0) && (inPastMs != 0)) { 3118 sysTime = systemTime(); 3119 } 3120 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) { 3121 if (((getStrategy((AudioSystem::stream_type)i) == strategy) || 3122 (NUM_STRATEGIES == strategy)) && 3123 isStreamActive((AudioSystem::stream_type)i, inPastMs, sysTime)) { 3124 return true; 3125 } 3126 } 3127 return false; 3128 } 3129 3130 bool AudioPolicyManagerBase::AudioOutputDescriptor::isStreamActive(AudioSystem::stream_type stream, 3131 uint32_t inPastMs, 3132 nsecs_t sysTime) const 3133 { 3134 if (mRefCount[stream] != 0) { 3135 return true; 3136 } 3137 if (inPastMs == 0) { 3138 return false; 3139 } 3140 if (sysTime == 0) { 3141 sysTime = systemTime(); 3142 } 3143 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 3144 return true; 3145 } 3146 return false; 3147 } 3148 3149 3150 status_t AudioPolicyManagerBase::AudioOutputDescriptor::dump(int fd) 3151 { 3152 const size_t SIZE = 256; 3153 char buffer[SIZE]; 3154 String8 result; 3155 3156 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 3157 result.append(buffer); 3158 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 3159 result.append(buffer); 3160 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 3161 result.append(buffer); 3162 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 3163 result.append(buffer); 3164 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 3165 result.append(buffer); 3166 snprintf(buffer, SIZE, " Devices %08x\n", device()); 3167 result.append(buffer); 3168 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 3169 result.append(buffer); 3170 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) { 3171 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 3172 result.append(buffer); 3173 } 3174 write(fd, result.string(), result.size()); 3175 3176 return NO_ERROR; 3177 } 3178 3179 // --- AudioInputDescriptor class implementation 3180 3181 AudioPolicyManagerBase::AudioInputDescriptor::AudioInputDescriptor(const IOProfile *profile) 3182 : mSamplingRate(0), mFormat((audio_format_t)0), mChannelMask((audio_channel_mask_t)0), 3183 mDevice(AUDIO_DEVICE_NONE), mRefCount(0), 3184 mInputSource(0), mProfile(profile) 3185 { 3186 } 3187 3188 status_t AudioPolicyManagerBase::AudioInputDescriptor::dump(int fd) 3189 { 3190 const size_t SIZE = 256; 3191 char buffer[SIZE]; 3192 String8 result; 3193 3194 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 3195 result.append(buffer); 3196 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 3197 result.append(buffer); 3198 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 3199 result.append(buffer); 3200 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 3201 result.append(buffer); 3202 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 3203 result.append(buffer); 3204 write(fd, result.string(), result.size()); 3205 3206 return NO_ERROR; 3207 } 3208 3209 // --- StreamDescriptor class implementation 3210 3211 AudioPolicyManagerBase::StreamDescriptor::StreamDescriptor() 3212 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 3213 { 3214 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 3215 } 3216 3217 int AudioPolicyManagerBase::StreamDescriptor::getVolumeIndex(audio_devices_t device) 3218 { 3219 device = AudioPolicyManagerBase::getDeviceForVolume(device); 3220 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 3221 if (mIndexCur.indexOfKey(device) < 0) { 3222 device = AUDIO_DEVICE_OUT_DEFAULT; 3223 } 3224 return mIndexCur.valueFor(device); 3225 } 3226 3227 void AudioPolicyManagerBase::StreamDescriptor::dump(int fd) 3228 { 3229 const size_t SIZE = 256; 3230 char buffer[SIZE]; 3231 String8 result; 3232 3233 snprintf(buffer, SIZE, "%s %02d %02d ", 3234 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 3235 result.append(buffer); 3236 for (size_t i = 0; i < mIndexCur.size(); i++) { 3237 snprintf(buffer, SIZE, "%04x : %02d, ", 3238 mIndexCur.keyAt(i), 3239 mIndexCur.valueAt(i)); 3240 result.append(buffer); 3241 } 3242 result.append("\n"); 3243 3244 write(fd, result.string(), result.size()); 3245 } 3246 3247 // --- EffectDescriptor class implementation 3248 3249 status_t AudioPolicyManagerBase::EffectDescriptor::dump(int fd) 3250 { 3251 const size_t SIZE = 256; 3252 char buffer[SIZE]; 3253 String8 result; 3254 3255 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 3256 result.append(buffer); 3257 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 3258 result.append(buffer); 3259 snprintf(buffer, SIZE, " Session: %d\n", mSession); 3260 result.append(buffer); 3261 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 3262 result.append(buffer); 3263 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 3264 result.append(buffer); 3265 write(fd, result.string(), result.size()); 3266 3267 return NO_ERROR; 3268 } 3269 3270 // --- IOProfile class implementation 3271 3272 AudioPolicyManagerBase::HwModule::HwModule(const char *name) 3273 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), mHandle(0) 3274 { 3275 } 3276 3277 AudioPolicyManagerBase::HwModule::~HwModule() 3278 { 3279 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 3280 delete mOutputProfiles[i]; 3281 } 3282 for (size_t i = 0; i < mInputProfiles.size(); i++) { 3283 delete mInputProfiles[i]; 3284 } 3285 free((void *)mName); 3286 } 3287 3288 void AudioPolicyManagerBase::HwModule::dump(int fd) 3289 { 3290 const size_t SIZE = 256; 3291 char buffer[SIZE]; 3292 String8 result; 3293 3294 snprintf(buffer, SIZE, " - name: %s\n", mName); 3295 result.append(buffer); 3296 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 3297 result.append(buffer); 3298 write(fd, result.string(), result.size()); 3299 if (mOutputProfiles.size()) { 3300 write(fd, " - outputs:\n", sizeof(" - outputs:\n")); 3301 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 3302 snprintf(buffer, SIZE, " output %d:\n", i); 3303 write(fd, buffer, strlen(buffer)); 3304 mOutputProfiles[i]->dump(fd); 3305 } 3306 } 3307 if (mInputProfiles.size()) { 3308 write(fd, " - inputs:\n", sizeof(" - inputs:\n")); 3309 for (size_t i = 0; i < mInputProfiles.size(); i++) { 3310 snprintf(buffer, SIZE, " input %d:\n", i); 3311 write(fd, buffer, strlen(buffer)); 3312 mInputProfiles[i]->dump(fd); 3313 } 3314 } 3315 } 3316 3317 AudioPolicyManagerBase::IOProfile::IOProfile(HwModule *module) 3318 : mFlags((audio_output_flags_t)0), mModule(module) 3319 { 3320 } 3321 3322 AudioPolicyManagerBase::IOProfile::~IOProfile() 3323 { 3324 } 3325 3326 // checks if the IO profile is compatible with specified parameters. By convention a value of 0 3327 // means a parameter is don't care 3328 bool AudioPolicyManagerBase::IOProfile::isCompatibleProfile(audio_devices_t device, 3329 uint32_t samplingRate, 3330 uint32_t format, 3331 uint32_t channelMask, 3332 audio_output_flags_t flags) const 3333 { 3334 if ((mSupportedDevices & device) != device) { 3335 return false; 3336 } 3337 if ((mFlags & flags) != flags) { 3338 return false; 3339 } 3340 if (samplingRate != 0) { 3341 size_t i; 3342 for (i = 0; i < mSamplingRates.size(); i++) 3343 { 3344 if (mSamplingRates[i] == samplingRate) { 3345 break; 3346 } 3347 } 3348 if (i == mSamplingRates.size()) { 3349 return false; 3350 } 3351 } 3352 if (format != 0) { 3353 size_t i; 3354 for (i = 0; i < mFormats.size(); i++) 3355 { 3356 if (mFormats[i] == format) { 3357 break; 3358 } 3359 } 3360 if (i == mFormats.size()) { 3361 return false; 3362 } 3363 } 3364 if (channelMask != 0) { 3365 size_t i; 3366 for (i = 0; i < mChannelMasks.size(); i++) 3367 { 3368 if (mChannelMasks[i] == channelMask) { 3369 break; 3370 } 3371 } 3372 if (i == mChannelMasks.size()) { 3373 return false; 3374 } 3375 } 3376 return true; 3377 } 3378 3379 void AudioPolicyManagerBase::IOProfile::dump(int fd) 3380 { 3381 const size_t SIZE = 256; 3382 char buffer[SIZE]; 3383 String8 result; 3384 3385 snprintf(buffer, SIZE, " - sampling rates: "); 3386 result.append(buffer); 3387 for (size_t i = 0; i < mSamplingRates.size(); i++) { 3388 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 3389 result.append(buffer); 3390 result.append(i == (mSamplingRates.size() - 1) ? "\n" : ", "); 3391 } 3392 3393 snprintf(buffer, SIZE, " - channel masks: "); 3394 result.append(buffer); 3395 for (size_t i = 0; i < mChannelMasks.size(); i++) { 3396 snprintf(buffer, SIZE, "%04x", mChannelMasks[i]); 3397 result.append(buffer); 3398 result.append(i == (mChannelMasks.size() - 1) ? "\n" : ", "); 3399 } 3400 3401 snprintf(buffer, SIZE, " - formats: "); 3402 result.append(buffer); 3403 for (size_t i = 0; i < mFormats.size(); i++) { 3404 snprintf(buffer, SIZE, "%d", mFormats[i]); 3405 result.append(buffer); 3406 result.append(i == (mFormats.size() - 1) ? "\n" : ", "); 3407 } 3408 3409 snprintf(buffer, SIZE, " - devices: %04x\n", mSupportedDevices); 3410 result.append(buffer); 3411 snprintf(buffer, SIZE, " - flags: %04x\n", mFlags); 3412 result.append(buffer); 3413 3414 write(fd, result.string(), result.size()); 3415 } 3416 3417 // --- audio_policy.conf file parsing 3418 3419 struct StringToEnum { 3420 const char *name; 3421 uint32_t value; 3422 }; 3423 3424 #define STRING_TO_ENUM(string) { #string, string } 3425 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 3426 3427 const struct StringToEnum sDeviceNameToEnumTable[] = { 3428 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 3429 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 3430 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 3431 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 3432 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 3433 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 3434 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 3435 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 3436 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 3437 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 3438 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 3439 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 3440 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 3441 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 3442 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 3443 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 3444 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 3445 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 3446 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 3447 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 3448 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 3449 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 3450 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 3451 }; 3452 3453 const struct StringToEnum sFlagNameToEnumTable[] = { 3454 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 3455 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 3456 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 3457 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 3458 }; 3459 3460 const struct StringToEnum sFormatNameToEnumTable[] = { 3461 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 3462 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 3463 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 3464 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 3465 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 3466 }; 3467 3468 const struct StringToEnum sOutChannelsNameToEnumTable[] = { 3469 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 3470 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 3471 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 3472 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 3473 }; 3474 3475 const struct StringToEnum sInChannelsNameToEnumTable[] = { 3476 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 3477 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 3478 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 3479 }; 3480 3481 3482 uint32_t AudioPolicyManagerBase::stringToEnum(const struct StringToEnum *table, 3483 size_t size, 3484 const char *name) 3485 { 3486 for (size_t i = 0; i < size; i++) { 3487 if (strcmp(table[i].name, name) == 0) { 3488 ALOGV("stringToEnum() found %s", table[i].name); 3489 return table[i].value; 3490 } 3491 } 3492 return 0; 3493 } 3494 3495 audio_output_flags_t AudioPolicyManagerBase::parseFlagNames(char *name) 3496 { 3497 uint32_t flag = 0; 3498 3499 // it is OK to cast name to non const here as we are not going to use it after 3500 // strtok() modifies it 3501 char *flagName = strtok(name, "|"); 3502 while (flagName != NULL) { 3503 if (strlen(flagName) != 0) { 3504 flag |= stringToEnum(sFlagNameToEnumTable, 3505 ARRAY_SIZE(sFlagNameToEnumTable), 3506 flagName); 3507 } 3508 flagName = strtok(NULL, "|"); 3509 } 3510 return (audio_output_flags_t)flag; 3511 } 3512 3513 audio_devices_t AudioPolicyManagerBase::parseDeviceNames(char *name) 3514 { 3515 uint32_t device = 0; 3516 3517 char *devName = strtok(name, "|"); 3518 while (devName != NULL) { 3519 if (strlen(devName) != 0) { 3520 device |= stringToEnum(sDeviceNameToEnumTable, 3521 ARRAY_SIZE(sDeviceNameToEnumTable), 3522 devName); 3523 } 3524 devName = strtok(NULL, "|"); 3525 } 3526 return device; 3527 } 3528 3529 void AudioPolicyManagerBase::loadSamplingRates(char *name, IOProfile *profile) 3530 { 3531 char *str = strtok(name, "|"); 3532 3533 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 3534 // rates should be read from the output stream after it is opened for the first time 3535 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 3536 profile->mSamplingRates.add(0); 3537 return; 3538 } 3539 3540 while (str != NULL) { 3541 uint32_t rate = atoi(str); 3542 if (rate != 0) { 3543 ALOGV("loadSamplingRates() adding rate %d", rate); 3544 profile->mSamplingRates.add(rate); 3545 } 3546 str = strtok(NULL, "|"); 3547 } 3548 return; 3549 } 3550 3551 void AudioPolicyManagerBase::loadFormats(char *name, IOProfile *profile) 3552 { 3553 char *str = strtok(name, "|"); 3554 3555 // by convention, "0' in the first entry in mFormats indicates the supported formats 3556 // should be read from the output stream after it is opened for the first time 3557 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 3558 profile->mFormats.add((audio_format_t)0); 3559 return; 3560 } 3561 3562 while (str != NULL) { 3563 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 3564 ARRAY_SIZE(sFormatNameToEnumTable), 3565 str); 3566 if (format != 0) { 3567 profile->mFormats.add(format); 3568 } 3569 str = strtok(NULL, "|"); 3570 } 3571 return; 3572 } 3573 3574 void AudioPolicyManagerBase::loadInChannels(char *name, IOProfile *profile) 3575 { 3576 const char *str = strtok(name, "|"); 3577 3578 ALOGV("loadInChannels() %s", name); 3579 3580 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 3581 profile->mChannelMasks.add((audio_channel_mask_t)0); 3582 return; 3583 } 3584 3585 while (str != NULL) { 3586 audio_channel_mask_t channelMask = 3587 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 3588 ARRAY_SIZE(sInChannelsNameToEnumTable), 3589 str); 3590 if (channelMask != 0) { 3591 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 3592 profile->mChannelMasks.add(channelMask); 3593 } 3594 str = strtok(NULL, "|"); 3595 } 3596 return; 3597 } 3598 3599 void AudioPolicyManagerBase::loadOutChannels(char *name, IOProfile *profile) 3600 { 3601 const char *str = strtok(name, "|"); 3602 3603 ALOGV("loadOutChannels() %s", name); 3604 3605 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 3606 // masks should be read from the output stream after it is opened for the first time 3607 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 3608 profile->mChannelMasks.add((audio_channel_mask_t)0); 3609 return; 3610 } 3611 3612 while (str != NULL) { 3613 audio_channel_mask_t channelMask = 3614 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 3615 ARRAY_SIZE(sOutChannelsNameToEnumTable), 3616 str); 3617 if (channelMask != 0) { 3618 profile->mChannelMasks.add(channelMask); 3619 } 3620 str = strtok(NULL, "|"); 3621 } 3622 return; 3623 } 3624 3625 status_t AudioPolicyManagerBase::loadInput(cnode *root, HwModule *module) 3626 { 3627 cnode *node = root->first_child; 3628 3629 IOProfile *profile = new IOProfile(module); 3630 3631 while (node) { 3632 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 3633 loadSamplingRates((char *)node->value, profile); 3634 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 3635 loadFormats((char *)node->value, profile); 3636 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 3637 loadInChannels((char *)node->value, profile); 3638 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 3639 profile->mSupportedDevices = parseDeviceNames((char *)node->value); 3640 } 3641 node = node->next; 3642 } 3643 ALOGW_IF(profile->mSupportedDevices == AUDIO_DEVICE_NONE, 3644 "loadInput() invalid supported devices"); 3645 ALOGW_IF(profile->mChannelMasks.size() == 0, 3646 "loadInput() invalid supported channel masks"); 3647 ALOGW_IF(profile->mSamplingRates.size() == 0, 3648 "loadInput() invalid supported sampling rates"); 3649 ALOGW_IF(profile->mFormats.size() == 0, 3650 "loadInput() invalid supported formats"); 3651 if ((profile->mSupportedDevices != AUDIO_DEVICE_NONE) && 3652 (profile->mChannelMasks.size() != 0) && 3653 (profile->mSamplingRates.size() != 0) && 3654 (profile->mFormats.size() != 0)) { 3655 3656 ALOGV("loadInput() adding input mSupportedDevices %04x", profile->mSupportedDevices); 3657 3658 module->mInputProfiles.add(profile); 3659 return NO_ERROR; 3660 } else { 3661 delete profile; 3662 return BAD_VALUE; 3663 } 3664 } 3665 3666 status_t AudioPolicyManagerBase::loadOutput(cnode *root, HwModule *module) 3667 { 3668 cnode *node = root->first_child; 3669 3670 IOProfile *profile = new IOProfile(module); 3671 3672 while (node) { 3673 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 3674 loadSamplingRates((char *)node->value, profile); 3675 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 3676 loadFormats((char *)node->value, profile); 3677 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 3678 loadOutChannels((char *)node->value, profile); 3679 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 3680 profile->mSupportedDevices = parseDeviceNames((char *)node->value); 3681 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 3682 profile->mFlags = parseFlagNames((char *)node->value); 3683 } 3684 node = node->next; 3685 } 3686 ALOGW_IF(profile->mSupportedDevices == AUDIO_DEVICE_NONE, 3687 "loadOutput() invalid supported devices"); 3688 ALOGW_IF(profile->mChannelMasks.size() == 0, 3689 "loadOutput() invalid supported channel masks"); 3690 ALOGW_IF(profile->mSamplingRates.size() == 0, 3691 "loadOutput() invalid supported sampling rates"); 3692 ALOGW_IF(profile->mFormats.size() == 0, 3693 "loadOutput() invalid supported formats"); 3694 if ((profile->mSupportedDevices != AUDIO_DEVICE_NONE) && 3695 (profile->mChannelMasks.size() != 0) && 3696 (profile->mSamplingRates.size() != 0) && 3697 (profile->mFormats.size() != 0)) { 3698 3699 ALOGV("loadOutput() adding output mSupportedDevices %04x, mFlags %04x", 3700 profile->mSupportedDevices, profile->mFlags); 3701 3702 module->mOutputProfiles.add(profile); 3703 return NO_ERROR; 3704 } else { 3705 delete profile; 3706 return BAD_VALUE; 3707 } 3708 } 3709 3710 void AudioPolicyManagerBase::loadHwModule(cnode *root) 3711 { 3712 cnode *node = config_find(root, OUTPUTS_TAG); 3713 status_t status = NAME_NOT_FOUND; 3714 3715 HwModule *module = new HwModule(root->name); 3716 3717 if (node != NULL) { 3718 if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_A2DP) == 0) { 3719 mHasA2dp = true; 3720 } else if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_USB) == 0) { 3721 mHasUsb = true; 3722 } else if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) == 0) { 3723 mHasRemoteSubmix = true; 3724 } 3725 3726 node = node->first_child; 3727 while (node) { 3728 ALOGV("loadHwModule() loading output %s", node->name); 3729 status_t tmpStatus = loadOutput(node, module); 3730 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 3731 status = tmpStatus; 3732 } 3733 node = node->next; 3734 } 3735 } 3736 node = config_find(root, INPUTS_TAG); 3737 if (node != NULL) { 3738 node = node->first_child; 3739 while (node) { 3740 ALOGV("loadHwModule() loading input %s", node->name); 3741 status_t tmpStatus = loadInput(node, module); 3742 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 3743 status = tmpStatus; 3744 } 3745 node = node->next; 3746 } 3747 } 3748 if (status == NO_ERROR) { 3749 mHwModules.add(module); 3750 } else { 3751 delete module; 3752 } 3753 } 3754 3755 void AudioPolicyManagerBase::loadHwModules(cnode *root) 3756 { 3757 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 3758 if (node == NULL) { 3759 return; 3760 } 3761 3762 node = node->first_child; 3763 while (node) { 3764 ALOGV("loadHwModules() loading module %s", node->name); 3765 loadHwModule(node); 3766 node = node->next; 3767 } 3768 } 3769 3770 void AudioPolicyManagerBase::loadGlobalConfig(cnode *root) 3771 { 3772 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 3773 if (node == NULL) { 3774 return; 3775 } 3776 node = node->first_child; 3777 while (node) { 3778 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 3779 mAttachedOutputDevices = parseDeviceNames((char *)node->value); 3780 ALOGW_IF(mAttachedOutputDevices == AUDIO_DEVICE_NONE, 3781 "loadGlobalConfig() no attached output devices"); 3782 ALOGV("loadGlobalConfig() mAttachedOutputDevices %04x", mAttachedOutputDevices); 3783 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 3784 mDefaultOutputDevice = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 3785 ARRAY_SIZE(sDeviceNameToEnumTable), 3786 (char *)node->value); 3787 ALOGW_IF(mDefaultOutputDevice == AUDIO_DEVICE_NONE, 3788 "loadGlobalConfig() default device not specified"); 3789 ALOGV("loadGlobalConfig() mDefaultOutputDevice %04x", mDefaultOutputDevice); 3790 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 3791 mAvailableInputDevices = parseDeviceNames((char *)node->value) & ~AUDIO_DEVICE_BIT_IN; 3792 ALOGV("loadGlobalConfig() mAvailableInputDevices %04x", mAvailableInputDevices); 3793 } 3794 node = node->next; 3795 } 3796 } 3797 3798 status_t AudioPolicyManagerBase::loadAudioPolicyConfig(const char *path) 3799 { 3800 cnode *root; 3801 char *data; 3802 3803 data = (char *)load_file(path, NULL); 3804 if (data == NULL) { 3805 return -ENODEV; 3806 } 3807 root = config_node("", ""); 3808 config_load(root, data); 3809 3810 loadGlobalConfig(root); 3811 loadHwModules(root); 3812 3813 config_free(root); 3814 free(root); 3815 free(data); 3816 3817 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 3818 3819 return NO_ERROR; 3820 } 3821 3822 void AudioPolicyManagerBase::defaultAudioPolicyConfig(void) 3823 { 3824 HwModule *module; 3825 IOProfile *profile; 3826 3827 mDefaultOutputDevice = AUDIO_DEVICE_OUT_SPEAKER; 3828 mAttachedOutputDevices = AUDIO_DEVICE_OUT_SPEAKER; 3829 mAvailableInputDevices = AUDIO_DEVICE_IN_BUILTIN_MIC & ~AUDIO_DEVICE_BIT_IN; 3830 3831 module = new HwModule("primary"); 3832 3833 profile = new IOProfile(module); 3834 profile->mSamplingRates.add(44100); 3835 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 3836 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 3837 profile->mSupportedDevices = AUDIO_DEVICE_OUT_SPEAKER; 3838 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 3839 module->mOutputProfiles.add(profile); 3840 3841 profile = new IOProfile(module); 3842 profile->mSamplingRates.add(8000); 3843 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 3844 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 3845 profile->mSupportedDevices = AUDIO_DEVICE_IN_BUILTIN_MIC; 3846 module->mInputProfiles.add(profile); 3847 3848 mHwModules.add(module); 3849 } 3850 3851 }; // namespace android 3852
