AudioPolicyManager.cpp revision bacd9d7ae33d831f9b8b3a0bc7ba8d367164a1d0
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 "APM::AudioPolicyManager" 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#define AUDIO_POLICY_XML_CONFIG_FILE "/system/etc/audio_policy_configuration.xml" 28 29#include <inttypes.h> 30#include <math.h> 31 32#include <AudioPolicyManagerInterface.h> 33#include <AudioPolicyEngineInstance.h> 34#include <cutils/properties.h> 35#include <utils/Log.h> 36#include <hardware/audio.h> 37#include <hardware/audio_effect.h> 38#include <media/AudioParameter.h> 39#include <media/AudioPolicyHelper.h> 40#include <soundtrigger/SoundTrigger.h> 41#include "AudioPolicyManager.h" 42#ifndef USE_XML_AUDIO_POLICY_CONF 43#include <ConfigParsingUtils.h> 44#include <StreamDescriptor.h> 45#endif 46#include <Serializer.h> 47#include "TypeConverter.h" 48#include <policy.h> 49 50namespace android { 51 52// ---------------------------------------------------------------------------- 53// AudioPolicyInterface implementation 54// ---------------------------------------------------------------------------- 55 56status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 57 audio_policy_dev_state_t state, 58 const char *device_address, 59 const char *device_name) 60{ 61 return setDeviceConnectionStateInt(device, state, device_address, device_name); 62} 63 64status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t device, 65 audio_policy_dev_state_t state, 66 const char *device_address, 67 const char *device_name) 68{ 69 ALOGV("setDeviceConnectionStateInt() device: 0x%X, state %d, address %s name %s", 70- device, state, device_address, device_name); 71 72 // connect/disconnect only 1 device at a time 73 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 74 75 sp<DeviceDescriptor> devDesc = 76 mHwModules.getDeviceDescriptor(device, device_address, device_name); 77 78 // handle output devices 79 if (audio_is_output_device(device)) { 80 SortedVector <audio_io_handle_t> outputs; 81 82 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 83 84 // save a copy of the opened output descriptors before any output is opened or closed 85 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 86 mPreviousOutputs = mOutputs; 87 switch (state) 88 { 89 // handle output device connection 90 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 91 if (index >= 0) { 92 ALOGW("setDeviceConnectionState() device already connected: %x", device); 93 return INVALID_OPERATION; 94 } 95 ALOGV("setDeviceConnectionState() connecting device %x", device); 96 97 // register new device as available 98 index = mAvailableOutputDevices.add(devDesc); 99 if (index >= 0) { 100 sp<HwModule> module = mHwModules.getModuleForDevice(device); 101 if (module == 0) { 102 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 103 device); 104 mAvailableOutputDevices.remove(devDesc); 105 return INVALID_OPERATION; 106 } 107 mAvailableOutputDevices[index]->attach(module); 108 } else { 109 return NO_MEMORY; 110 } 111 112 if (checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress) != NO_ERROR) { 113 mAvailableOutputDevices.remove(devDesc); 114 return INVALID_OPERATION; 115 } 116 // Propagate device availability to Engine 117 mEngine->setDeviceConnectionState(devDesc, state); 118 119 // outputs should never be empty here 120 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 121 "checkOutputsForDevice() returned no outputs but status OK"); 122 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 123 outputs.size()); 124 125 // Send connect to HALs 126 AudioParameter param = AudioParameter(devDesc->mAddress); 127 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 128 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 129 130 } break; 131 // handle output device disconnection 132 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 133 if (index < 0) { 134 ALOGW("setDeviceConnectionState() device not connected: %x", device); 135 return INVALID_OPERATION; 136 } 137 138 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 139 140 // Send Disconnect to HALs 141 AudioParameter param = AudioParameter(devDesc->mAddress); 142 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 143 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 144 145 // remove device from available output devices 146 mAvailableOutputDevices.remove(devDesc); 147 148 checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress); 149 150 // Propagate device availability to Engine 151 mEngine->setDeviceConnectionState(devDesc, state); 152 } break; 153 154 default: 155 ALOGE("setDeviceConnectionState() invalid state: %x", state); 156 return BAD_VALUE; 157 } 158 159 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 160 // output is suspended before any tracks are moved to it 161 checkA2dpSuspend(); 162 checkOutputForAllStrategies(); 163 // outputs must be closed after checkOutputForAllStrategies() is executed 164 if (!outputs.isEmpty()) { 165 for (size_t i = 0; i < outputs.size(); i++) { 166 sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 167 // close unused outputs after device disconnection or direct outputs that have been 168 // opened by checkOutputsForDevice() to query dynamic parameters 169 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 170 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 171 (desc->mDirectOpenCount == 0))) { 172 closeOutput(outputs[i]); 173 } 174 } 175 // check again after closing A2DP output to reset mA2dpSuspended if needed 176 checkA2dpSuspend(); 177 } 178 179 updateDevicesAndOutputs(); 180 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) { 181 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 182 updateCallRouting(newDevice); 183 } 184 for (size_t i = 0; i < mOutputs.size(); i++) { 185 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 186 if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (desc != mPrimaryOutput)) { 187 audio_devices_t newDevice = getNewOutputDevice(desc, true /*fromCache*/); 188 // do not force device change on duplicated output because if device is 0, it will 189 // also force a device 0 for the two outputs it is duplicated to which may override 190 // a valid device selection on those outputs. 191 bool force = !desc->isDuplicated() 192 && (!device_distinguishes_on_address(device) 193 // always force when disconnecting (a non-duplicated device) 194 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 195 setOutputDevice(desc, newDevice, force, 0); 196 } 197 } 198 199 if (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 200 cleanUpForDevice(devDesc); 201 } 202 203 mpClientInterface->onAudioPortListUpdate(); 204 return NO_ERROR; 205 } // end if is output device 206 207 // handle input devices 208 if (audio_is_input_device(device)) { 209 SortedVector <audio_io_handle_t> inputs; 210 211 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 212 switch (state) 213 { 214 // handle input device connection 215 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 216 if (index >= 0) { 217 ALOGW("setDeviceConnectionState() device already connected: %d", device); 218 return INVALID_OPERATION; 219 } 220 sp<HwModule> module = mHwModules.getModuleForDevice(device); 221 if (module == NULL) { 222 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 223 device); 224 return INVALID_OPERATION; 225 } 226 if (checkInputsForDevice(devDesc, state, inputs, devDesc->mAddress) != NO_ERROR) { 227 return INVALID_OPERATION; 228 } 229 230 index = mAvailableInputDevices.add(devDesc); 231 if (index >= 0) { 232 mAvailableInputDevices[index]->attach(module); 233 } else { 234 return NO_MEMORY; 235 } 236 237 // Set connect to HALs 238 AudioParameter param = AudioParameter(devDesc->mAddress); 239 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 240 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 241 242 // Propagate device availability to Engine 243 mEngine->setDeviceConnectionState(devDesc, state); 244 } break; 245 246 // handle input device disconnection 247 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 248 if (index < 0) { 249 ALOGW("setDeviceConnectionState() device not connected: %d", device); 250 return INVALID_OPERATION; 251 } 252 253 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 254 255 // Set Disconnect to HALs 256 AudioParameter param = AudioParameter(devDesc->mAddress); 257 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 258 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 259 260 checkInputsForDevice(devDesc, state, inputs, devDesc->mAddress); 261 mAvailableInputDevices.remove(devDesc); 262 263 // Propagate device availability to Engine 264 mEngine->setDeviceConnectionState(devDesc, state); 265 } break; 266 267 default: 268 ALOGE("setDeviceConnectionState() invalid state: %x", state); 269 return BAD_VALUE; 270 } 271 272 closeAllInputs(); 273 274 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) { 275 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 276 updateCallRouting(newDevice); 277 } 278 279 if (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 280 cleanUpForDevice(devDesc); 281 } 282 283 mpClientInterface->onAudioPortListUpdate(); 284 return NO_ERROR; 285 } // end if is input device 286 287 ALOGW("setDeviceConnectionState() invalid device: %x", device); 288 return BAD_VALUE; 289} 290 291audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 292 const char *device_address) 293{ 294 sp<DeviceDescriptor> devDesc = mHwModules.getDeviceDescriptor(device, device_address, ""); 295 296 DeviceVector *deviceVector; 297 298 if (audio_is_output_device(device)) { 299 deviceVector = &mAvailableOutputDevices; 300 } else if (audio_is_input_device(device)) { 301 deviceVector = &mAvailableInputDevices; 302 } else { 303 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 304 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 305 } 306 return deviceVector->getDeviceConnectionState(devDesc); 307} 308 309void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 310{ 311 bool createTxPatch = false; 312 struct audio_patch patch; 313 patch.num_sources = 1; 314 patch.num_sinks = 1; 315 status_t status; 316 audio_patch_handle_t afPatchHandle; 317 DeviceVector deviceList; 318 319 if(!hasPrimaryOutput()) { 320 return; 321 } 322 audio_devices_t txDevice = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 323 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 324 325 // release existing RX patch if any 326 if (mCallRxPatch != 0) { 327 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 328 mCallRxPatch.clear(); 329 } 330 // release TX patch if any 331 if (mCallTxPatch != 0) { 332 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 333 mCallTxPatch.clear(); 334 } 335 336 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 337 // via setOutputDevice() on primary output. 338 // Otherwise, create two audio patches for TX and RX path. 339 if (availablePrimaryOutputDevices() & rxDevice) { 340 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 341 // If the TX device is also on the primary HW module, setOutputDevice() will take care 342 // of it due to legacy implementation. If not, create a patch. 343 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 344 == AUDIO_DEVICE_NONE) { 345 createTxPatch = true; 346 } 347 } else { 348 // create RX path audio patch 349 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 350 ALOG_ASSERT(!deviceList.isEmpty(), 351 "updateCallRouting() selected device not in output device list"); 352 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 353 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 354 ALOG_ASSERT(!deviceList.isEmpty(), 355 "updateCallRouting() no telephony RX device"); 356 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 357 358 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 359 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 360 361 // request to reuse existing output stream if one is already opened to reach the RX device 362 SortedVector<audio_io_handle_t> outputs = 363 getOutputsForDevice(rxDevice, mOutputs); 364 audio_io_handle_t output = selectOutput(outputs, 365 AUDIO_OUTPUT_FLAG_NONE, 366 AUDIO_FORMAT_INVALID); 367 if (output != AUDIO_IO_HANDLE_NONE) { 368 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 369 ALOG_ASSERT(!outputDesc->isDuplicated(), 370 "updateCallRouting() RX device output is duplicated"); 371 outputDesc->toAudioPortConfig(&patch.sources[1]); 372 patch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 373 patch.num_sources = 2; 374 } 375 376 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 377 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 378 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 379 status); 380 if (status == NO_ERROR) { 381 mCallRxPatch = new AudioPatch(&patch, mUidCached); 382 mCallRxPatch->mAfPatchHandle = afPatchHandle; 383 mCallRxPatch->mUid = mUidCached; 384 } 385 createTxPatch = true; 386 } 387 if (createTxPatch) { 388 389 struct audio_patch patch; 390 patch.num_sources = 1; 391 patch.num_sinks = 1; 392 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 393 ALOG_ASSERT(!deviceList.isEmpty(), 394 "updateCallRouting() selected device not in input device list"); 395 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 396 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 397 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 398 ALOG_ASSERT(!deviceList.isEmpty(), 399 "updateCallRouting() no telephony TX device"); 400 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 401 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 402 403 SortedVector<audio_io_handle_t> outputs = 404 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 405 audio_io_handle_t output = selectOutput(outputs, 406 AUDIO_OUTPUT_FLAG_NONE, 407 AUDIO_FORMAT_INVALID); 408 // request to reuse existing output stream if one is already opened to reach the TX 409 // path output device 410 if (output != AUDIO_IO_HANDLE_NONE) { 411 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 412 ALOG_ASSERT(!outputDesc->isDuplicated(), 413 "updateCallRouting() RX device output is duplicated"); 414 outputDesc->toAudioPortConfig(&patch.sources[1]); 415 patch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 416 patch.num_sources = 2; 417 } 418 419 // terminate active capture if on the same HW module as the call TX source device 420 // FIXME: would be better to refine to only inputs whose profile connects to the 421 // call TX device but this information is not in the audio patch and logic here must be 422 // symmetric to the one in startInput() 423 audio_io_handle_t activeInput = mInputs.getActiveInput(); 424 if (activeInput != 0) { 425 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 426 if (activeDesc->getModuleHandle() == txSourceDeviceDesc->getModuleHandle()) { 427 //FIXME: consider all active sessions 428 AudioSessionCollection activeSessions = activeDesc->getActiveAudioSessions(); 429 audio_session_t activeSession = activeSessions.keyAt(0); 430 stopInput(activeInput, activeSession); 431 releaseInput(activeInput, activeSession); 432 } 433 } 434 435 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 436 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 437 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 438 status); 439 if (status == NO_ERROR) { 440 mCallTxPatch = new AudioPatch(&patch, mUidCached); 441 mCallTxPatch->mAfPatchHandle = afPatchHandle; 442 mCallTxPatch->mUid = mUidCached; 443 } 444 } 445} 446 447void AudioPolicyManager::setPhoneState(audio_mode_t state) 448{ 449 ALOGV("setPhoneState() state %d", state); 450 // store previous phone state for management of sonification strategy below 451 int oldState = mEngine->getPhoneState(); 452 453 if (mEngine->setPhoneState(state) != NO_ERROR) { 454 ALOGW("setPhoneState() invalid or same state %d", state); 455 return; 456 } 457 /// Opens: can these line be executed after the switch of volume curves??? 458 // if leaving call state, handle special case of active streams 459 // pertaining to sonification strategy see handleIncallSonification() 460 if (isStateInCall(oldState)) { 461 ALOGV("setPhoneState() in call state management: new state is %d", state); 462 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 463 if (stream == AUDIO_STREAM_PATCH) { 464 continue; 465 } 466 handleIncallSonification((audio_stream_type_t)stream, false, true); 467 } 468 469 // force reevaluating accessibility routing when call stops 470 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 471 } 472 473 /** 474 * Switching to or from incall state or switching between telephony and VoIP lead to force 475 * routing command. 476 */ 477 bool force = ((is_state_in_call(oldState) != is_state_in_call(state)) 478 || (is_state_in_call(state) && (state != oldState))); 479 480 // check for device and output changes triggered by new phone state 481 checkA2dpSuspend(); 482 checkOutputForAllStrategies(); 483 updateDevicesAndOutputs(); 484 485 int delayMs = 0; 486 if (isStateInCall(state)) { 487 nsecs_t sysTime = systemTime(); 488 for (size_t i = 0; i < mOutputs.size(); i++) { 489 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 490 // mute media and sonification strategies and delay device switch by the largest 491 // latency of any output where either strategy is active. 492 // This avoid sending the ring tone or music tail into the earpiece or headset. 493 if ((isStrategyActive(desc, STRATEGY_MEDIA, 494 SONIFICATION_HEADSET_MUSIC_DELAY, 495 sysTime) || 496 isStrategyActive(desc, STRATEGY_SONIFICATION, 497 SONIFICATION_HEADSET_MUSIC_DELAY, 498 sysTime)) && 499 (delayMs < (int)desc->latency()*2)) { 500 delayMs = desc->latency()*2; 501 } 502 setStrategyMute(STRATEGY_MEDIA, true, desc); 503 setStrategyMute(STRATEGY_MEDIA, false, desc, MUTE_TIME_MS, 504 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 505 setStrategyMute(STRATEGY_SONIFICATION, true, desc); 506 setStrategyMute(STRATEGY_SONIFICATION, false, desc, MUTE_TIME_MS, 507 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 508 } 509 } 510 511 if (hasPrimaryOutput()) { 512 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 513 // the device returned is not necessarily reachable via this output 514 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 515 // force routing command to audio hardware when ending call 516 // even if no device change is needed 517 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 518 rxDevice = mPrimaryOutput->device(); 519 } 520 521 if (state == AUDIO_MODE_IN_CALL) { 522 updateCallRouting(rxDevice, delayMs); 523 } else if (oldState == AUDIO_MODE_IN_CALL) { 524 if (mCallRxPatch != 0) { 525 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 526 mCallRxPatch.clear(); 527 } 528 if (mCallTxPatch != 0) { 529 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 530 mCallTxPatch.clear(); 531 } 532 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 533 } else { 534 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 535 } 536 } 537 // if entering in call state, handle special case of active streams 538 // pertaining to sonification strategy see handleIncallSonification() 539 if (isStateInCall(state)) { 540 ALOGV("setPhoneState() in call state management: new state is %d", state); 541 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 542 if (stream == AUDIO_STREAM_PATCH) { 543 continue; 544 } 545 handleIncallSonification((audio_stream_type_t)stream, true, true); 546 } 547 548 // force reevaluating accessibility routing when call starts 549 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 550 } 551 552 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 553 if (state == AUDIO_MODE_RINGTONE && 554 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 555 mLimitRingtoneVolume = true; 556 } else { 557 mLimitRingtoneVolume = false; 558 } 559} 560 561audio_mode_t AudioPolicyManager::getPhoneState() { 562 return mEngine->getPhoneState(); 563} 564 565void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 566 audio_policy_forced_cfg_t config) 567{ 568 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mEngine->getPhoneState()); 569 570 if (mEngine->setForceUse(usage, config) != NO_ERROR) { 571 ALOGW("setForceUse() could not set force cfg %d for usage %d", config, usage); 572 return; 573 } 574 bool forceVolumeReeval = (usage == AUDIO_POLICY_FORCE_FOR_COMMUNICATION) || 575 (usage == AUDIO_POLICY_FORCE_FOR_DOCK) || 576 (usage == AUDIO_POLICY_FORCE_FOR_SYSTEM); 577 578 // check for device and output changes triggered by new force usage 579 checkA2dpSuspend(); 580 checkOutputForAllStrategies(); 581 updateDevicesAndOutputs(); 582 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) { 583 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 584 updateCallRouting(newDevice); 585 } 586 for (size_t i = 0; i < mOutputs.size(); i++) { 587 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 588 audio_devices_t newDevice = getNewOutputDevice(outputDesc, true /*fromCache*/); 589 if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (outputDesc != mPrimaryOutput)) { 590 setOutputDevice(outputDesc, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 591 } 592 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 593 applyStreamVolumes(outputDesc, newDevice, 0, true); 594 } 595 } 596 597 audio_io_handle_t activeInput = mInputs.getActiveInput(); 598 if (activeInput != 0) { 599 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 600 audio_devices_t newDevice = getNewInputDevice(activeInput); 601 // Force new input selection if the new device can not be reached via current input 602 if (activeDesc->mProfile->getSupportedDevices().types() & (newDevice & ~AUDIO_DEVICE_BIT_IN)) { 603 setInputDevice(activeInput, newDevice); 604 } else { 605 closeInput(activeInput); 606 } 607 } 608} 609 610void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 611{ 612 ALOGV("setSystemProperty() property %s, value %s", property, value); 613} 614 615// Find a direct output profile compatible with the parameters passed, even if the input flags do 616// not explicitly request a direct output 617sp<IOProfile> AudioPolicyManager::getProfileForDirectOutput( 618 audio_devices_t device, 619 uint32_t samplingRate, 620 audio_format_t format, 621 audio_channel_mask_t channelMask, 622 audio_output_flags_t flags) 623{ 624 // only retain flags that will drive the direct output profile selection 625 // if explicitly requested 626 static const uint32_t kRelevantFlags = 627 (AUDIO_OUTPUT_FLAG_HW_AV_SYNC | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 628 flags = 629 (audio_output_flags_t)((flags & kRelevantFlags) | AUDIO_OUTPUT_FLAG_DIRECT); 630 631 sp<IOProfile> profile; 632 633 for (size_t i = 0; i < mHwModules.size(); i++) { 634 if (mHwModules[i]->mHandle == 0) { 635 continue; 636 } 637 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 638 sp<IOProfile> curProfile = mHwModules[i]->mOutputProfiles[j]; 639 if (!curProfile->isCompatibleProfile(device, String8(""), 640 samplingRate, NULL /*updatedSamplingRate*/, 641 format, NULL /*updatedFormat*/, 642 channelMask, NULL /*updatedChannelMask*/, 643 flags)) { 644 continue; 645 } 646 // reject profiles not corresponding to a device currently available 647 if ((mAvailableOutputDevices.types() & curProfile->getSupportedDevicesType()) == 0) { 648 continue; 649 } 650 // if several profiles are compatible, give priority to one with offload capability 651 if (profile != 0 && ((curProfile->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0)) { 652 continue; 653 } 654 profile = curProfile; 655 if ((profile->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 656 break; 657 } 658 } 659 } 660 return profile; 661} 662 663audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 664 uint32_t samplingRate, 665 audio_format_t format, 666 audio_channel_mask_t channelMask, 667 audio_output_flags_t flags, 668 const audio_offload_info_t *offloadInfo) 669{ 670 routing_strategy strategy = getStrategy(stream); 671 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 672 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 673 device, stream, samplingRate, format, channelMask, flags); 674 675 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 676 stream, samplingRate,format, channelMask, 677 flags, offloadInfo); 678} 679 680status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 681 audio_io_handle_t *output, 682 audio_session_t session, 683 audio_stream_type_t *stream, 684 uid_t uid, 685 uint32_t samplingRate, 686 audio_format_t format, 687 audio_channel_mask_t channelMask, 688 audio_output_flags_t flags, 689 audio_port_handle_t selectedDeviceId, 690 const audio_offload_info_t *offloadInfo) 691{ 692 audio_attributes_t attributes; 693 if (attr != NULL) { 694 if (!isValidAttributes(attr)) { 695 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 696 attr->usage, attr->content_type, attr->flags, 697 attr->tags); 698 return BAD_VALUE; 699 } 700 attributes = *attr; 701 } else { 702 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 703 ALOGE("getOutputForAttr(): invalid stream type"); 704 return BAD_VALUE; 705 } 706 stream_type_to_audio_attributes(*stream, &attributes); 707 } 708 sp<SwAudioOutputDescriptor> desc; 709 if (mPolicyMixes.getOutputForAttr(attributes, desc) == NO_ERROR) { 710 ALOG_ASSERT(desc != 0, "Invalid desc returned by getOutputForAttr"); 711 if (!audio_is_linear_pcm(format)) { 712 return BAD_VALUE; 713 } 714 *stream = streamTypefromAttributesInt(&attributes); 715 *output = desc->mIoHandle; 716 ALOGV("getOutputForAttr() returns output %d", *output); 717 return NO_ERROR; 718 } 719 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE) { 720 ALOGW("getOutputForAttr() no policy mix found for usage AUDIO_USAGE_VIRTUAL_SOURCE"); 721 return BAD_VALUE; 722 } 723 724 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x" 725 " session %d selectedDeviceId %d", 726 attributes.usage, attributes.content_type, attributes.tags, attributes.flags, 727 session, selectedDeviceId); 728 729 *stream = streamTypefromAttributesInt(&attributes); 730 731 // Explicit routing? 732 sp<DeviceDescriptor> deviceDesc; 733 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 734 if (mAvailableOutputDevices[i]->getId() == selectedDeviceId) { 735 deviceDesc = mAvailableOutputDevices[i]; 736 break; 737 } 738 } 739 mOutputRoutes.addRoute(session, *stream, SessionRoute::SOURCE_TYPE_NA, deviceDesc, uid); 740 741 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 742 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 743 744 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 745 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 746 } 747 748 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 749 device, samplingRate, format, channelMask, flags); 750 751 *output = getOutputForDevice(device, session, *stream, 752 samplingRate, format, channelMask, 753 flags, offloadInfo); 754 if (*output == AUDIO_IO_HANDLE_NONE) { 755 mOutputRoutes.removeRoute(session); 756 return INVALID_OPERATION; 757 } 758 759 return NO_ERROR; 760} 761 762audio_io_handle_t AudioPolicyManager::getOutputForDevice( 763 audio_devices_t device, 764 audio_session_t session __unused, 765 audio_stream_type_t stream, 766 uint32_t samplingRate, 767 audio_format_t format, 768 audio_channel_mask_t channelMask, 769 audio_output_flags_t flags, 770 const audio_offload_info_t *offloadInfo) 771{ 772 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 773 uint32_t latency = 0; 774 status_t status; 775 776#ifdef AUDIO_POLICY_TEST 777 if (mCurOutput != 0) { 778 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 779 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 780 781 if (mTestOutputs[mCurOutput] == 0) { 782 ALOGV("getOutput() opening test output"); 783 sp<AudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(NULL, 784 mpClientInterface); 785 outputDesc->mDevice = mTestDevice; 786 outputDesc->mLatency = mTestLatencyMs; 787 outputDesc->mFlags = 788 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 789 outputDesc->mRefCount[stream] = 0; 790 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 791 config.sample_rate = mTestSamplingRate; 792 config.channel_mask = mTestChannels; 793 config.format = mTestFormat; 794 if (offloadInfo != NULL) { 795 config.offload_info = *offloadInfo; 796 } 797 status = mpClientInterface->openOutput(0, 798 &mTestOutputs[mCurOutput], 799 &config, 800 &outputDesc->mDevice, 801 String8(""), 802 &outputDesc->mLatency, 803 outputDesc->mFlags); 804 if (status == NO_ERROR) { 805 outputDesc->mSamplingRate = config.sample_rate; 806 outputDesc->mFormat = config.format; 807 outputDesc->mChannelMask = config.channel_mask; 808 AudioParameter outputCmd = AudioParameter(); 809 outputCmd.addInt(String8("set_id"),mCurOutput); 810 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 811 addOutput(mTestOutputs[mCurOutput], outputDesc); 812 } 813 } 814 return mTestOutputs[mCurOutput]; 815 } 816#endif //AUDIO_POLICY_TEST 817 818 // open a direct output if required by specified parameters 819 //force direct flag if offload flag is set: offloading implies a direct output stream 820 // and all common behaviors are driven by checking only the direct flag 821 // this should normally be set appropriately in the policy configuration file 822 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 823 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 824 } 825 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 826 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 827 } 828 // only allow deep buffering for music stream type 829 if (stream != AUDIO_STREAM_MUSIC) { 830 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 831 } else if (/* stream == AUDIO_STREAM_MUSIC && */ 832 flags == AUDIO_OUTPUT_FLAG_NONE && 833 property_get_bool("audio.deep_buffer.media", false /* default_value */)) { 834 // use DEEP_BUFFER as default output for music stream type 835 flags = (audio_output_flags_t)AUDIO_OUTPUT_FLAG_DEEP_BUFFER; 836 } 837 if (stream == AUDIO_STREAM_TTS) { 838 flags = AUDIO_OUTPUT_FLAG_TTS; 839 } 840 841 sp<IOProfile> profile; 842 843 // skip direct output selection if the request can obviously be attached to a mixed output 844 // and not explicitly requested 845 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 846 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 847 audio_channel_count_from_out_mask(channelMask) <= 2) { 848 goto non_direct_output; 849 } 850 851 // Do not allow offloading if one non offloadable effect is enabled or MasterMono is enabled. 852 // This prevents creating an offloaded track and tearing it down immediately after start 853 // when audioflinger detects there is an active non offloadable effect. 854 // FIXME: We should check the audio session here but we do not have it in this context. 855 // This may prevent offloading in rare situations where effects are left active by apps 856 // in the background. 857 858 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 859 !(mEffects.isNonOffloadableEffectEnabled() || mMasterMono)) { 860 profile = getProfileForDirectOutput(device, 861 samplingRate, 862 format, 863 channelMask, 864 (audio_output_flags_t)flags); 865 } 866 867 if (profile != 0) { 868 sp<SwAudioOutputDescriptor> outputDesc = NULL; 869 870 for (size_t i = 0; i < mOutputs.size(); i++) { 871 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 872 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 873 outputDesc = desc; 874 // reuse direct output if currently open and configured with same parameters 875 if ((samplingRate == outputDesc->mSamplingRate) && 876 (format == outputDesc->mFormat) && 877 (channelMask == outputDesc->mChannelMask)) { 878 outputDesc->mDirectOpenCount++; 879 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 880 return mOutputs.keyAt(i); 881 } 882 } 883 } 884 // close direct output if currently open and configured with different parameters 885 if (outputDesc != NULL) { 886 closeOutput(outputDesc->mIoHandle); 887 } 888 889 // if the selected profile is offloaded and no offload info was specified, 890 // create a default one 891 audio_offload_info_t defaultOffloadInfo = AUDIO_INFO_INITIALIZER; 892 if ((profile->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) && !offloadInfo) { 893 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 894 defaultOffloadInfo.sample_rate = samplingRate; 895 defaultOffloadInfo.channel_mask = channelMask; 896 defaultOffloadInfo.format = format; 897 defaultOffloadInfo.stream_type = stream; 898 defaultOffloadInfo.bit_rate = 0; 899 defaultOffloadInfo.duration_us = -1; 900 defaultOffloadInfo.has_video = true; // conservative 901 defaultOffloadInfo.is_streaming = true; // likely 902 offloadInfo = &defaultOffloadInfo; 903 } 904 905 outputDesc = new SwAudioOutputDescriptor(profile, mpClientInterface); 906 outputDesc->mDevice = device; 907 outputDesc->mLatency = 0; 908 outputDesc->mFlags = (audio_output_flags_t)(outputDesc->mFlags | flags); 909 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 910 config.sample_rate = samplingRate; 911 config.channel_mask = channelMask; 912 config.format = format; 913 if (offloadInfo != NULL) { 914 config.offload_info = *offloadInfo; 915 } 916 status = mpClientInterface->openOutput(profile->getModuleHandle(), 917 &output, 918 &config, 919 &outputDesc->mDevice, 920 String8(""), 921 &outputDesc->mLatency, 922 outputDesc->mFlags); 923 924 // only accept an output with the requested parameters 925 if (status != NO_ERROR || 926 (samplingRate != 0 && samplingRate != config.sample_rate) || 927 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 928 (channelMask != 0 && channelMask != config.channel_mask)) { 929 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 930 "format %d %d, channelMask %04x %04x", output, samplingRate, 931 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 932 outputDesc->mChannelMask); 933 if (output != AUDIO_IO_HANDLE_NONE) { 934 mpClientInterface->closeOutput(output); 935 } 936 // fall back to mixer output if possible when the direct output could not be open 937 if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) { 938 goto non_direct_output; 939 } 940 return AUDIO_IO_HANDLE_NONE; 941 } 942 outputDesc->mSamplingRate = config.sample_rate; 943 outputDesc->mChannelMask = config.channel_mask; 944 outputDesc->mFormat = config.format; 945 outputDesc->mRefCount[stream] = 0; 946 outputDesc->mStopTime[stream] = 0; 947 outputDesc->mDirectOpenCount = 1; 948 949 audio_io_handle_t srcOutput = getOutputForEffect(); 950 addOutput(output, outputDesc); 951 audio_io_handle_t dstOutput = getOutputForEffect(); 952 if (dstOutput == output) { 953 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 954 } 955 mPreviousOutputs = mOutputs; 956 ALOGV("getOutput() returns new direct output %d", output); 957 mpClientInterface->onAudioPortListUpdate(); 958 return output; 959 } 960 961non_direct_output: 962 // ignoring channel mask due to downmix capability in mixer 963 964 // open a non direct output 965 966 // for non direct outputs, only PCM is supported 967 if (audio_is_linear_pcm(format)) { 968 // get which output is suitable for the specified stream. The actual 969 // routing change will happen when startOutput() will be called 970 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 971 972 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 973 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 974 output = selectOutput(outputs, flags, format); 975 } 976 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 977 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 978 979 ALOGV(" getOutputForDevice() returns output %d", output); 980 981 return output; 982} 983 984audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 985 audio_output_flags_t flags, 986 audio_format_t format) 987{ 988 // select one output among several that provide a path to a particular device or set of 989 // devices (the list was previously build by getOutputsForDevice()). 990 // The priority is as follows: 991 // 1: the output with the highest number of requested policy flags 992 // 2: the primary output 993 // 3: the first output in the list 994 995 if (outputs.size() == 0) { 996 return 0; 997 } 998 if (outputs.size() == 1) { 999 return outputs[0]; 1000 } 1001 1002 int maxCommonFlags = 0; 1003 audio_io_handle_t outputFlags = 0; 1004 audio_io_handle_t outputPrimary = 0; 1005 1006 for (size_t i = 0; i < outputs.size(); i++) { 1007 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1008 if (!outputDesc->isDuplicated()) { 1009 // if a valid format is specified, skip output if not compatible 1010 if (format != AUDIO_FORMAT_INVALID) { 1011 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1012 if (format != outputDesc->mFormat) { 1013 continue; 1014 } 1015 } else if (!audio_is_linear_pcm(format)) { 1016 continue; 1017 } 1018 } 1019 1020 int commonFlags = popcount(outputDesc->mProfile->getFlags() & flags); 1021 if (commonFlags > maxCommonFlags) { 1022 outputFlags = outputs[i]; 1023 maxCommonFlags = commonFlags; 1024 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1025 } 1026 if (outputDesc->mProfile->getFlags() & AUDIO_OUTPUT_FLAG_PRIMARY) { 1027 outputPrimary = outputs[i]; 1028 } 1029 } 1030 } 1031 1032 if (outputFlags != 0) { 1033 return outputFlags; 1034 } 1035 if (outputPrimary != 0) { 1036 return outputPrimary; 1037 } 1038 1039 return outputs[0]; 1040} 1041 1042status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1043 audio_stream_type_t stream, 1044 audio_session_t session) 1045{ 1046 ALOGV("startOutput() output %d, stream %d, session %d", 1047 output, stream, session); 1048 ssize_t index = mOutputs.indexOfKey(output); 1049 if (index < 0) { 1050 ALOGW("startOutput() unknown output %d", output); 1051 return BAD_VALUE; 1052 } 1053 1054 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1055 1056 // Routing? 1057 mOutputRoutes.incRouteActivity(session); 1058 1059 audio_devices_t newDevice; 1060 if (outputDesc->mPolicyMix != NULL) { 1061 newDevice = AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 1062 } else if (mOutputRoutes.hasRouteChanged(session)) { 1063 newDevice = getNewOutputDevice(outputDesc, false /*fromCache*/); 1064 checkStrategyRoute(getStrategy(stream), output); 1065 } else { 1066 newDevice = AUDIO_DEVICE_NONE; 1067 } 1068 1069 uint32_t delayMs = 0; 1070 1071 status_t status = startSource(outputDesc, stream, newDevice, &delayMs); 1072 1073 if (status != NO_ERROR) { 1074 mOutputRoutes.decRouteActivity(session); 1075 return status; 1076 } 1077 // Automatically enable the remote submix input when output is started on a re routing mix 1078 // of type MIX_TYPE_RECORDERS 1079 if (audio_is_remote_submix_device(newDevice) && outputDesc->mPolicyMix != NULL && 1080 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1081 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1082 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1083 outputDesc->mPolicyMix->mRegistrationId, 1084 "remote-submix"); 1085 } 1086 1087 if (delayMs != 0) { 1088 usleep(delayMs * 1000); 1089 } 1090 1091 return status; 1092} 1093 1094status_t AudioPolicyManager::startSource(sp<AudioOutputDescriptor> outputDesc, 1095 audio_stream_type_t stream, 1096 audio_devices_t device, 1097 uint32_t *delayMs) 1098{ 1099 // cannot start playback of STREAM_TTS if any other output is being used 1100 uint32_t beaconMuteLatency = 0; 1101 1102 *delayMs = 0; 1103 if (stream == AUDIO_STREAM_TTS) { 1104 ALOGV("\t found BEACON stream"); 1105 if (!mTtsOutputAvailable && mOutputs.isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1106 return INVALID_OPERATION; 1107 } else { 1108 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1109 } 1110 } else { 1111 // some playback other than beacon starts 1112 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1113 } 1114 1115 // check active before incrementing usage count 1116 bool force = !outputDesc->isActive(); 1117 1118 // increment usage count for this stream on the requested output: 1119 // NOTE that the usage count is the same for duplicated output and hardware output which is 1120 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1121 outputDesc->changeRefCount(stream, 1); 1122 1123 if (outputDesc->mRefCount[stream] == 1 || device != AUDIO_DEVICE_NONE) { 1124 // starting an output being rerouted? 1125 if (device == AUDIO_DEVICE_NONE) { 1126 device = getNewOutputDevice(outputDesc, false /*fromCache*/); 1127 } 1128 routing_strategy strategy = getStrategy(stream); 1129 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1130 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1131 (beaconMuteLatency > 0); 1132 uint32_t waitMs = beaconMuteLatency; 1133 for (size_t i = 0; i < mOutputs.size(); i++) { 1134 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1135 if (desc != outputDesc) { 1136 // force a device change if any other output is managed by the same hw 1137 // module and has a current device selection that differs from selected device. 1138 // In this case, the audio HAL must receive the new device selection so that it can 1139 // change the device currently selected by the other active output. 1140 if (outputDesc->sharesHwModuleWith(desc) && 1141 desc->device() != device) { 1142 force = true; 1143 } 1144 // wait for audio on other active outputs to be presented when starting 1145 // a notification so that audio focus effect can propagate, or that a mute/unmute 1146 // event occurred for beacon 1147 uint32_t latency = desc->latency(); 1148 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1149 waitMs = latency; 1150 } 1151 } 1152 } 1153 uint32_t muteWaitMs = setOutputDevice(outputDesc, device, force); 1154 1155 // handle special case for sonification while in call 1156 if (isInCall()) { 1157 handleIncallSonification(stream, true, false); 1158 } 1159 1160 // apply volume rules for current stream and device if necessary 1161 checkAndSetVolume(stream, 1162 mVolumeCurves->getVolumeIndex(stream, device), 1163 outputDesc, 1164 device); 1165 1166 // update the outputs if starting an output with a stream that can affect notification 1167 // routing 1168 handleNotificationRoutingForStream(stream); 1169 1170 // force reevaluating accessibility routing when ringtone or alarm starts 1171 if (strategy == STRATEGY_SONIFICATION) { 1172 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 1173 } 1174 } 1175 return NO_ERROR; 1176} 1177 1178 1179status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1180 audio_stream_type_t stream, 1181 audio_session_t session) 1182{ 1183 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1184 ssize_t index = mOutputs.indexOfKey(output); 1185 if (index < 0) { 1186 ALOGW("stopOutput() unknown output %d", output); 1187 return BAD_VALUE; 1188 } 1189 1190 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1191 1192 if (outputDesc->mRefCount[stream] == 1) { 1193 // Automatically disable the remote submix input when output is stopped on a 1194 // re routing mix of type MIX_TYPE_RECORDERS 1195 if (audio_is_remote_submix_device(outputDesc->mDevice) && 1196 outputDesc->mPolicyMix != NULL && 1197 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1198 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1199 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1200 outputDesc->mPolicyMix->mRegistrationId, 1201 "remote-submix"); 1202 } 1203 } 1204 1205 // Routing? 1206 bool forceDeviceUpdate = false; 1207 if (outputDesc->mRefCount[stream] > 0) { 1208 int activityCount = mOutputRoutes.decRouteActivity(session); 1209 forceDeviceUpdate = (mOutputRoutes.hasRoute(session) && (activityCount == 0)); 1210 1211 if (forceDeviceUpdate) { 1212 checkStrategyRoute(getStrategy(stream), AUDIO_IO_HANDLE_NONE); 1213 } 1214 } 1215 1216 return stopSource(outputDesc, stream, forceDeviceUpdate); 1217} 1218 1219status_t AudioPolicyManager::stopSource(sp<AudioOutputDescriptor> outputDesc, 1220 audio_stream_type_t stream, 1221 bool forceDeviceUpdate) 1222{ 1223 // always handle stream stop, check which stream type is stopping 1224 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1225 1226 // handle special case for sonification while in call 1227 if (isInCall()) { 1228 handleIncallSonification(stream, false, false); 1229 } 1230 1231 if (outputDesc->mRefCount[stream] > 0) { 1232 // decrement usage count of this stream on the output 1233 outputDesc->changeRefCount(stream, -1); 1234 1235 // store time at which the stream was stopped - see isStreamActive() 1236 if (outputDesc->mRefCount[stream] == 0 || forceDeviceUpdate) { 1237 outputDesc->mStopTime[stream] = systemTime(); 1238 audio_devices_t newDevice = getNewOutputDevice(outputDesc, false /*fromCache*/); 1239 // delay the device switch by twice the latency because stopOutput() is executed when 1240 // the track stop() command is received and at that time the audio track buffer can 1241 // still contain data that needs to be drained. The latency only covers the audio HAL 1242 // and kernel buffers. Also the latency does not always include additional delay in the 1243 // audio path (audio DSP, CODEC ...) 1244 setOutputDevice(outputDesc, newDevice, false, outputDesc->latency()*2); 1245 1246 // force restoring the device selection on other active outputs if it differs from the 1247 // one being selected for this output 1248 for (size_t i = 0; i < mOutputs.size(); i++) { 1249 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1250 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1251 if (desc != outputDesc && 1252 desc->isActive() && 1253 outputDesc->sharesHwModuleWith(desc) && 1254 (newDevice != desc->device())) { 1255 setOutputDevice(desc, 1256 getNewOutputDevice(desc, false /*fromCache*/), 1257 true, 1258 outputDesc->latency()*2); 1259 } 1260 } 1261 // update the outputs if stopping one with a stream that can affect notification routing 1262 handleNotificationRoutingForStream(stream); 1263 } 1264 return NO_ERROR; 1265 } else { 1266 ALOGW("stopOutput() refcount is already 0"); 1267 return INVALID_OPERATION; 1268 } 1269} 1270 1271void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1272 audio_stream_type_t stream __unused, 1273 audio_session_t session __unused) 1274{ 1275 ALOGV("releaseOutput() %d", output); 1276 ssize_t index = mOutputs.indexOfKey(output); 1277 if (index < 0) { 1278 ALOGW("releaseOutput() releasing unknown output %d", output); 1279 return; 1280 } 1281 1282#ifdef AUDIO_POLICY_TEST 1283 int testIndex = testOutputIndex(output); 1284 if (testIndex != 0) { 1285 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1286 if (outputDesc->isActive()) { 1287 mpClientInterface->closeOutput(output); 1288 removeOutput(output); 1289 mTestOutputs[testIndex] = 0; 1290 } 1291 return; 1292 } 1293#endif //AUDIO_POLICY_TEST 1294 1295 // Routing 1296 mOutputRoutes.removeRoute(session); 1297 1298 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(index); 1299 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1300 if (desc->mDirectOpenCount <= 0) { 1301 ALOGW("releaseOutput() invalid open count %d for output %d", 1302 desc->mDirectOpenCount, output); 1303 return; 1304 } 1305 if (--desc->mDirectOpenCount == 0) { 1306 closeOutput(output); 1307 // If effects where present on the output, audioflinger moved them to the primary 1308 // output by default: move them back to the appropriate output. 1309 audio_io_handle_t dstOutput = getOutputForEffect(); 1310 if (hasPrimaryOutput() && dstOutput != mPrimaryOutput->mIoHandle) { 1311 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, 1312 mPrimaryOutput->mIoHandle, dstOutput); 1313 } 1314 mpClientInterface->onAudioPortListUpdate(); 1315 } 1316 } 1317} 1318 1319 1320status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1321 audio_io_handle_t *input, 1322 audio_session_t session, 1323 uid_t uid, 1324 uint32_t samplingRate, 1325 audio_format_t format, 1326 audio_channel_mask_t channelMask, 1327 audio_input_flags_t flags, 1328 audio_port_handle_t selectedDeviceId, 1329 input_type_t *inputType) 1330{ 1331 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1332 "session %d, flags %#x", 1333 attr->source, samplingRate, format, channelMask, session, flags); 1334 1335 *input = AUDIO_IO_HANDLE_NONE; 1336 *inputType = API_INPUT_INVALID; 1337 audio_devices_t device; 1338 // handle legacy remote submix case where the address was not always specified 1339 String8 address = String8(""); 1340 audio_source_t inputSource = attr->source; 1341 audio_source_t halInputSource; 1342 AudioMix *policyMix = NULL; 1343 1344 if (inputSource == AUDIO_SOURCE_DEFAULT) { 1345 inputSource = AUDIO_SOURCE_MIC; 1346 } 1347 halInputSource = inputSource; 1348 1349 // Explicit routing? 1350 sp<DeviceDescriptor> deviceDesc; 1351 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1352 if (mAvailableInputDevices[i]->getId() == selectedDeviceId) { 1353 deviceDesc = mAvailableInputDevices[i]; 1354 break; 1355 } 1356 } 1357 mInputRoutes.addRoute(session, SessionRoute::STREAM_TYPE_NA, inputSource, deviceDesc, uid); 1358 1359 if (inputSource == AUDIO_SOURCE_REMOTE_SUBMIX && 1360 strncmp(attr->tags, "addr=", strlen("addr=")) == 0) { 1361 status_t ret = mPolicyMixes.getInputMixForAttr(*attr, &policyMix); 1362 if (ret != NO_ERROR) { 1363 return ret; 1364 } 1365 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1366 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 1367 address = String8(attr->tags + strlen("addr=")); 1368 } else { 1369 device = getDeviceAndMixForInputSource(inputSource, &policyMix); 1370 if (device == AUDIO_DEVICE_NONE) { 1371 ALOGW("getInputForAttr() could not find device for source %d", inputSource); 1372 return BAD_VALUE; 1373 } 1374 if (policyMix != NULL) { 1375 address = policyMix->mRegistrationId; 1376 if (policyMix->mMixType == MIX_TYPE_RECORDERS) { 1377 // there is an external policy, but this input is attached to a mix of recorders, 1378 // meaning it receives audio injected into the framework, so the recorder doesn't 1379 // know about it and is therefore considered "legacy" 1380 *inputType = API_INPUT_LEGACY; 1381 } else { 1382 // recording a mix of players defined by an external policy, we're rerouting for 1383 // an external policy 1384 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1385 } 1386 } else if (audio_is_remote_submix_device(device)) { 1387 address = String8("0"); 1388 *inputType = API_INPUT_MIX_CAPTURE; 1389 } else if (device == AUDIO_DEVICE_IN_TELEPHONY_RX) { 1390 *inputType = API_INPUT_TELEPHONY_RX; 1391 } else { 1392 *inputType = API_INPUT_LEGACY; 1393 } 1394 1395 } 1396 1397 *input = getInputForDevice(device, address, session, uid, inputSource, 1398 samplingRate, format, channelMask, flags, 1399 policyMix); 1400 if (*input == AUDIO_IO_HANDLE_NONE) { 1401 mInputRoutes.removeRoute(session); 1402 return INVALID_OPERATION; 1403 } 1404 ALOGV("getInputForAttr() returns input type = %d", *inputType); 1405 return NO_ERROR; 1406} 1407 1408 1409audio_io_handle_t AudioPolicyManager::getInputForDevice(audio_devices_t device, 1410 String8 address, 1411 audio_session_t session, 1412 uid_t uid, 1413 audio_source_t inputSource, 1414 uint32_t samplingRate, 1415 audio_format_t format, 1416 audio_channel_mask_t channelMask, 1417 audio_input_flags_t flags, 1418 AudioMix *policyMix) 1419{ 1420 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 1421 audio_source_t halInputSource = inputSource; 1422 bool isSoundTrigger = false; 1423 1424 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1425 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1426 if (index >= 0) { 1427 input = mSoundTriggerSessions.valueFor(session); 1428 isSoundTrigger = true; 1429 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1430 ALOGV("SoundTrigger capture on session %d input %d", session, input); 1431 } else { 1432 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1433 } 1434 } 1435 1436 // find a compatible input profile (not necessarily identical in parameters) 1437 sp<IOProfile> profile; 1438 // samplingRate and flags may be updated by getInputProfile 1439 uint32_t profileSamplingRate = samplingRate; 1440 audio_format_t profileFormat = format; 1441 audio_channel_mask_t profileChannelMask = channelMask; 1442 audio_input_flags_t profileFlags = flags; 1443 for (;;) { 1444 profile = getInputProfile(device, address, 1445 profileSamplingRate, profileFormat, profileChannelMask, 1446 profileFlags); 1447 if (profile != 0) { 1448 break; // success 1449 } else if (profileFlags != AUDIO_INPUT_FLAG_NONE) { 1450 profileFlags = AUDIO_INPUT_FLAG_NONE; // retry 1451 } else { // fail 1452 ALOGW("getInputForDevice() could not find profile for device 0x%X," 1453 "samplingRate %u, format %#x, channelMask 0x%X, flags %#x", 1454 device, samplingRate, format, channelMask, flags); 1455 return input; 1456 } 1457 } 1458 1459 if (profile->getModuleHandle() == 0) { 1460 ALOGE("getInputForAttr(): HW module %s not opened", profile->getModuleName()); 1461 return input; 1462 } 1463 1464 sp<AudioSession> audioSession = new AudioSession(session, 1465 inputSource, 1466 format, 1467 samplingRate, 1468 channelMask, 1469 flags, 1470 uid, 1471 isSoundTrigger, 1472 policyMix, mpClientInterface); 1473 1474// TODO enable input reuse 1475#if 0 1476 // reuse an open input if possible 1477 for (size_t i = 0; i < mInputs.size(); i++) { 1478 sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 1479 // reuse input if it shares the same profile and same sound trigger attribute 1480 if (profile == desc->mProfile && 1481 isSoundTrigger == desc->isSoundTrigger()) { 1482 1483 sp<AudioSession> as = desc->getAudioSession(session); 1484 if (as != 0) { 1485 // do not allow unmatching properties on same session 1486 if (as->matches(audioSession)) { 1487 as->changeOpenCount(1); 1488 } else { 1489 ALOGW("getInputForDevice() record with different attributes" 1490 " exists for session %d", session); 1491 return input; 1492 } 1493 } else { 1494 desc->addAudioSession(session, audioSession); 1495 } 1496 ALOGV("getInputForDevice() reusing input %d", mInputs.keyAt(i)); 1497 return mInputs.keyAt(i); 1498 } 1499 } 1500#endif 1501 1502 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1503 config.sample_rate = profileSamplingRate; 1504 config.channel_mask = profileChannelMask; 1505 config.format = profileFormat; 1506 1507 status_t status = mpClientInterface->openInput(profile->getModuleHandle(), 1508 &input, 1509 &config, 1510 &device, 1511 address, 1512 halInputSource, 1513 profileFlags); 1514 1515 // only accept input with the exact requested set of parameters 1516 if (status != NO_ERROR || input == AUDIO_IO_HANDLE_NONE || 1517 (profileSamplingRate != config.sample_rate) || 1518 (profileFormat != config.format) || 1519 (profileChannelMask != config.channel_mask)) { 1520 ALOGW("getInputForAttr() failed opening input: samplingRate %d" 1521 ", format %d, channelMask %x", 1522 samplingRate, format, channelMask); 1523 if (input != AUDIO_IO_HANDLE_NONE) { 1524 mpClientInterface->closeInput(input); 1525 } 1526 return AUDIO_IO_HANDLE_NONE; 1527 } 1528 1529 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1530 inputDesc->mSamplingRate = profileSamplingRate; 1531 inputDesc->mFormat = profileFormat; 1532 inputDesc->mChannelMask = profileChannelMask; 1533 inputDesc->mDevice = device; 1534 inputDesc->mPolicyMix = policyMix; 1535 inputDesc->addAudioSession(session, audioSession); 1536 1537 addInput(input, inputDesc); 1538 mpClientInterface->onAudioPortListUpdate(); 1539 1540 return input; 1541} 1542 1543status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1544 audio_session_t session) 1545{ 1546 ALOGV("startInput() input %d", input); 1547 ssize_t index = mInputs.indexOfKey(input); 1548 if (index < 0) { 1549 ALOGW("startInput() unknown input %d", input); 1550 return BAD_VALUE; 1551 } 1552 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1553 1554 sp<AudioSession> audioSession = inputDesc->getAudioSession(session); 1555 if (audioSession == 0) { 1556 ALOGW("startInput() unknown session %d on input %d", session, input); 1557 return BAD_VALUE; 1558 } 1559 1560 // virtual input devices are compatible with other input devices 1561 if (!is_virtual_input_device(inputDesc->mDevice)) { 1562 1563 // for a non-virtual input device, check if there is another (non-virtual) active input 1564 audio_io_handle_t activeInput = mInputs.getActiveInput(); 1565 if (activeInput != 0 && activeInput != input) { 1566 1567 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1568 // otherwise the active input continues and the new input cannot be started. 1569 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1570 if ((activeDesc->inputSource() == AUDIO_SOURCE_HOTWORD) && 1571 !activeDesc->hasPreemptedSession(session)) { 1572 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1573 //FIXME: consider all active sessions 1574 AudioSessionCollection activeSessions = activeDesc->getActiveAudioSessions(); 1575 audio_session_t activeSession = activeSessions.keyAt(0); 1576 SortedVector<audio_session_t> sessions = 1577 activeDesc->getPreemptedSessions(); 1578 sessions.add(activeSession); 1579 inputDesc->setPreemptedSessions(sessions); 1580 stopInput(activeInput, activeSession); 1581 releaseInput(activeInput, activeSession); 1582 } else { 1583 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1584 return INVALID_OPERATION; 1585 } 1586 } 1587 1588 // Do not allow capture if an active voice call is using a software patch and 1589 // the call TX source device is on the same HW module. 1590 // FIXME: would be better to refine to only inputs whose profile connects to the 1591 // call TX device but this information is not in the audio patch 1592 if (mCallTxPatch != 0 && 1593 inputDesc->getModuleHandle() == mCallTxPatch->mPatch.sources[0].ext.device.hw_module) { 1594 return INVALID_OPERATION; 1595 } 1596 } 1597 1598 // Routing? 1599 mInputRoutes.incRouteActivity(session); 1600 1601 if (!inputDesc->isActive() || mInputRoutes.hasRouteChanged(session)) { 1602 // if input maps to a dynamic policy with an activity listener, notify of state change 1603 if ((inputDesc->mPolicyMix != NULL) 1604 && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) { 1605 mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mRegistrationId, 1606 MIX_STATE_MIXING); 1607 } 1608 1609 if (mInputs.activeInputsCount() == 0) { 1610 SoundTrigger::setCaptureState(true); 1611 } 1612 setInputDevice(input, getNewInputDevice(input), true /* force */); 1613 1614 // automatically enable the remote submix output when input is started if not 1615 // used by a policy mix of type MIX_TYPE_RECORDERS 1616 // For remote submix (a virtual device), we open only one input per capture request. 1617 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1618 String8 address = String8(""); 1619 if (inputDesc->mPolicyMix == NULL) { 1620 address = String8("0"); 1621 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1622 address = inputDesc->mPolicyMix->mRegistrationId; 1623 } 1624 if (address != "") { 1625 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1626 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1627 address, "remote-submix"); 1628 } 1629 } 1630 } 1631 1632 ALOGV("AudioPolicyManager::startInput() input source = %d", audioSession->inputSource()); 1633 1634 audioSession->changeActiveCount(1); 1635 return NO_ERROR; 1636} 1637 1638status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1639 audio_session_t session) 1640{ 1641 ALOGV("stopInput() input %d", input); 1642 ssize_t index = mInputs.indexOfKey(input); 1643 if (index < 0) { 1644 ALOGW("stopInput() unknown input %d", input); 1645 return BAD_VALUE; 1646 } 1647 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1648 1649 sp<AudioSession> audioSession = inputDesc->getAudioSession(session); 1650 if (index < 0) { 1651 ALOGW("stopInput() unknown session %d on input %d", session, input); 1652 return BAD_VALUE; 1653 } 1654 1655 if (audioSession->activeCount() == 0) { 1656 ALOGW("stopInput() input %d already stopped", input); 1657 return INVALID_OPERATION; 1658 } 1659 1660 audioSession->changeActiveCount(-1); 1661 1662 // Routing? 1663 mInputRoutes.decRouteActivity(session); 1664 1665 if (!inputDesc->isActive()) { 1666 // if input maps to a dynamic policy with an activity listener, notify of state change 1667 if ((inputDesc->mPolicyMix != NULL) 1668 && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) { 1669 mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mRegistrationId, 1670 MIX_STATE_IDLE); 1671 } 1672 1673 // automatically disable the remote submix output when input is stopped if not 1674 // used by a policy mix of type MIX_TYPE_RECORDERS 1675 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1676 String8 address = String8(""); 1677 if (inputDesc->mPolicyMix == NULL) { 1678 address = String8("0"); 1679 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1680 address = inputDesc->mPolicyMix->mRegistrationId; 1681 } 1682 if (address != "") { 1683 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1684 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1685 address, "remote-submix"); 1686 } 1687 } 1688 1689 resetInputDevice(input); 1690 1691 if (mInputs.activeInputsCount() == 0) { 1692 SoundTrigger::setCaptureState(false); 1693 } 1694 inputDesc->clearPreemptedSessions(); 1695 } 1696 return NO_ERROR; 1697} 1698 1699void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1700 audio_session_t session) 1701{ 1702 1703 ALOGV("releaseInput() %d", input); 1704 ssize_t index = mInputs.indexOfKey(input); 1705 if (index < 0) { 1706 ALOGW("releaseInput() releasing unknown input %d", input); 1707 return; 1708 } 1709 1710 // Routing 1711 mInputRoutes.removeRoute(session); 1712 1713 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1714 ALOG_ASSERT(inputDesc != 0); 1715 1716 sp<AudioSession> audioSession = inputDesc->getAudioSession(session); 1717 if (index < 0) { 1718 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1719 return; 1720 } 1721 1722 if (audioSession->openCount() == 0) { 1723 ALOGW("releaseInput() invalid open count %d on session %d", 1724 audioSession->openCount(), session); 1725 return; 1726 } 1727 1728 if (audioSession->changeOpenCount(-1) == 0) { 1729 inputDesc->removeAudioSession(session); 1730 } 1731 1732 if (inputDesc->getOpenRefCount() > 0) { 1733 ALOGV("releaseInput() exit > 0"); 1734 return; 1735 } 1736 1737 closeInput(input); 1738 mpClientInterface->onAudioPortListUpdate(); 1739 ALOGV("releaseInput() exit"); 1740} 1741 1742void AudioPolicyManager::closeAllInputs() { 1743 bool patchRemoved = false; 1744 1745 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1746 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1747 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1748 if (patch_index >= 0) { 1749 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1750 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1751 mAudioPatches.removeItemsAt(patch_index); 1752 patchRemoved = true; 1753 } 1754 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1755 } 1756 mInputs.clear(); 1757 nextAudioPortGeneration(); 1758 1759 if (patchRemoved) { 1760 mpClientInterface->onAudioPatchListUpdate(); 1761 } 1762} 1763 1764void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1765 int indexMin, 1766 int indexMax) 1767{ 1768 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1769 mVolumeCurves->initStreamVolume(stream, indexMin, indexMax); 1770 if (stream == AUDIO_STREAM_MUSIC) { 1771 mVolumeCurves->initStreamVolume(AUDIO_STREAM_ACCESSIBILITY, indexMin, indexMax); 1772 } 1773} 1774 1775status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1776 int index, 1777 audio_devices_t device) 1778{ 1779 1780 if ((index < mVolumeCurves->getVolumeIndexMin(stream)) || 1781 (index > mVolumeCurves->getVolumeIndexMax(stream))) { 1782 return BAD_VALUE; 1783 } 1784 if (!audio_is_output_device(device)) { 1785 return BAD_VALUE; 1786 } 1787 1788 // Force max volume if stream cannot be muted 1789 if (!mVolumeCurves->canBeMuted(stream)) index = mVolumeCurves->getVolumeIndexMax(stream); 1790 1791 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1792 stream, device, index); 1793 1794 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1795 // clear all device specific values 1796 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1797 mVolumeCurves->clearCurrentVolumeIndex(stream); 1798 } 1799 mVolumeCurves->addCurrentVolumeIndex(stream, device, index); 1800 1801 // update volume on all outputs whose current device is also selected by the same 1802 // strategy as the device specified by the caller 1803 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1804 1805 1806 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1807 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1808 if (stream == AUDIO_STREAM_MUSIC) { 1809 mVolumeCurves->addCurrentVolumeIndex(AUDIO_STREAM_ACCESSIBILITY, device, index); 1810 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1811 } 1812 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1813 (device & (strategyDevice | accessibilityDevice)) == 0) { 1814 return NO_ERROR; 1815 } 1816 status_t status = NO_ERROR; 1817 for (size_t i = 0; i < mOutputs.size(); i++) { 1818 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 1819 audio_devices_t curDevice = Volume::getDeviceForVolume(desc->device()); 1820 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1821 status_t volStatus = checkAndSetVolume(stream, index, desc, curDevice); 1822 if (volStatus != NO_ERROR) { 1823 status = volStatus; 1824 } 1825 } 1826 if ((accessibilityDevice != AUDIO_DEVICE_NONE) && 1827 ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0))) 1828 { 1829 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1830 index, desc, curDevice); 1831 } 1832 } 1833 return status; 1834} 1835 1836status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1837 int *index, 1838 audio_devices_t device) 1839{ 1840 if (index == NULL) { 1841 return BAD_VALUE; 1842 } 1843 if (!audio_is_output_device(device)) { 1844 return BAD_VALUE; 1845 } 1846 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1847 // the strategy the stream belongs to. 1848 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1849 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1850 } 1851 device = Volume::getDeviceForVolume(device); 1852 1853 *index = mVolumeCurves->getVolumeIndex(stream, device); 1854 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1855 return NO_ERROR; 1856} 1857 1858audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1859 const SortedVector<audio_io_handle_t>& outputs) 1860{ 1861 // select one output among several suitable for global effects. 1862 // The priority is as follows: 1863 // 1: An offloaded output. If the effect ends up not being offloadable, 1864 // AudioFlinger will invalidate the track and the offloaded output 1865 // will be closed causing the effect to be moved to a PCM output. 1866 // 2: A deep buffer output 1867 // 3: the first output in the list 1868 1869 if (outputs.size() == 0) { 1870 return 0; 1871 } 1872 1873 audio_io_handle_t outputOffloaded = 0; 1874 audio_io_handle_t outputDeepBuffer = 0; 1875 1876 for (size_t i = 0; i < outputs.size(); i++) { 1877 sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1878 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1879 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1880 outputOffloaded = outputs[i]; 1881 } 1882 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1883 outputDeepBuffer = outputs[i]; 1884 } 1885 } 1886 1887 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1888 outputOffloaded, outputDeepBuffer); 1889 if (outputOffloaded != 0) { 1890 return outputOffloaded; 1891 } 1892 if (outputDeepBuffer != 0) { 1893 return outputDeepBuffer; 1894 } 1895 1896 return outputs[0]; 1897} 1898 1899audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1900{ 1901 // apply simple rule where global effects are attached to the same output as MUSIC streams 1902 1903 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1904 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1905 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1906 1907 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1908 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1909 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1910 1911 return output; 1912} 1913 1914status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1915 audio_io_handle_t io, 1916 uint32_t strategy, 1917 int session, 1918 int id) 1919{ 1920 ssize_t index = mOutputs.indexOfKey(io); 1921 if (index < 0) { 1922 index = mInputs.indexOfKey(io); 1923 if (index < 0) { 1924 ALOGW("registerEffect() unknown io %d", io); 1925 return INVALID_OPERATION; 1926 } 1927 } 1928 return mEffects.registerEffect(desc, io, strategy, session, id); 1929} 1930 1931bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1932{ 1933 return mOutputs.isStreamActive(stream, inPastMs); 1934} 1935 1936bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const 1937{ 1938 return mOutputs.isStreamActiveRemotely(stream, inPastMs); 1939} 1940 1941bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1942{ 1943 for (size_t i = 0; i < mInputs.size(); i++) { 1944 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1945 if (inputDescriptor->isSourceActive(source)) { 1946 return true; 1947 } 1948 } 1949 return false; 1950} 1951 1952// Register a list of custom mixes with their attributes and format. 1953// When a mix is registered, corresponding input and output profiles are 1954// added to the remote submix hw module. The profile contains only the 1955// parameters (sampling rate, format...) specified by the mix. 1956// The corresponding input remote submix device is also connected. 1957// 1958// When a remote submix device is connected, the address is checked to select the 1959// appropriate profile and the corresponding input or output stream is opened. 1960// 1961// When capture starts, getInputForAttr() will: 1962// - 1 look for a mix matching the address passed in attribtutes tags if any 1963// - 2 if none found, getDeviceForInputSource() will: 1964// - 2.1 look for a mix matching the attributes source 1965// - 2.2 if none found, default to device selection by policy rules 1966// At this time, the corresponding output remote submix device is also connected 1967// and active playback use cases can be transferred to this mix if needed when reconnecting 1968// after AudioTracks are invalidated 1969// 1970// When playback starts, getOutputForAttr() will: 1971// - 1 look for a mix matching the address passed in attribtutes tags if any 1972// - 2 if none found, look for a mix matching the attributes usage 1973// - 3 if none found, default to device and output selection by policy rules. 1974 1975status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes) 1976{ 1977 sp<HwModule> module; 1978 for (size_t i = 0; i < mHwModules.size(); i++) { 1979 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 1980 mHwModules[i]->mHandle != 0) { 1981 module = mHwModules[i]; 1982 break; 1983 } 1984 } 1985 1986 if (module == 0) { 1987 return INVALID_OPERATION; 1988 } 1989 1990 ALOGV("registerPolicyMixes() num mixes %zu", mixes.size()); 1991 1992 for (size_t i = 0; i < mixes.size(); i++) { 1993 String8 address = mixes[i].mRegistrationId; 1994 1995 if (mPolicyMixes.registerMix(address, mixes[i]) != NO_ERROR) { 1996 continue; 1997 } 1998 audio_config_t outputConfig = mixes[i].mFormat; 1999 audio_config_t inputConfig = mixes[i].mFormat; 2000 // NOTE: audio flinger mixer does not support mono output: configure remote submix HAL in 2001 // stereo and let audio flinger do the channel conversion if needed. 2002 outputConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO; 2003 inputConfig.channel_mask = AUDIO_CHANNEL_IN_STEREO; 2004 module->addOutputProfile(address, &outputConfig, 2005 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address); 2006 module->addInputProfile(address, &inputConfig, 2007 AUDIO_DEVICE_IN_REMOTE_SUBMIX, address); 2008 2009 if (mixes[i].mMixType == MIX_TYPE_PLAYERS) { 2010 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2011 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2012 address.string(), "remote-submix"); 2013 } else { 2014 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2015 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2016 address.string(), "remote-submix"); 2017 } 2018 } 2019 return NO_ERROR; 2020} 2021 2022status_t AudioPolicyManager::unregisterPolicyMixes(Vector<AudioMix> mixes) 2023{ 2024 sp<HwModule> module; 2025 for (size_t i = 0; i < mHwModules.size(); i++) { 2026 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2027 mHwModules[i]->mHandle != 0) { 2028 module = mHwModules[i]; 2029 break; 2030 } 2031 } 2032 2033 if (module == 0) { 2034 return INVALID_OPERATION; 2035 } 2036 2037 ALOGV("unregisterPolicyMixes() num mixes %zu", mixes.size()); 2038 2039 for (size_t i = 0; i < mixes.size(); i++) { 2040 String8 address = mixes[i].mRegistrationId; 2041 2042 if (mPolicyMixes.unregisterMix(address) != NO_ERROR) { 2043 continue; 2044 } 2045 2046 if (getDeviceConnectionState(AUDIO_DEVICE_IN_REMOTE_SUBMIX, address.string()) == 2047 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2048 { 2049 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2050 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2051 address.string(), "remote-submix"); 2052 } 2053 2054 if (getDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address.string()) == 2055 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2056 { 2057 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2058 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2059 address.string(), "remote-submix"); 2060 } 2061 module->removeOutputProfile(address); 2062 module->removeInputProfile(address); 2063 } 2064 return NO_ERROR; 2065} 2066 2067 2068status_t AudioPolicyManager::dump(int fd) 2069{ 2070 const size_t SIZE = 256; 2071 char buffer[SIZE]; 2072 String8 result; 2073 2074 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 2075 result.append(buffer); 2076 2077 snprintf(buffer, SIZE, " Primary Output: %d\n", 2078 hasPrimaryOutput() ? mPrimaryOutput->mIoHandle : AUDIO_IO_HANDLE_NONE); 2079 result.append(buffer); 2080 snprintf(buffer, SIZE, " Phone state: %d\n", mEngine->getPhoneState()); 2081 result.append(buffer); 2082 snprintf(buffer, SIZE, " Force use for communications %d\n", 2083 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION)); 2084 result.append(buffer); 2085 snprintf(buffer, SIZE, " Force use for media %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA)); 2086 result.append(buffer); 2087 snprintf(buffer, SIZE, " Force use for record %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD)); 2088 result.append(buffer); 2089 snprintf(buffer, SIZE, " Force use for dock %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_DOCK)); 2090 result.append(buffer); 2091 snprintf(buffer, SIZE, " Force use for system %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM)); 2092 result.append(buffer); 2093 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 2094 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO)); 2095 result.append(buffer); 2096 snprintf(buffer, SIZE, " TTS output %s\n", mTtsOutputAvailable ? "available" : "not available"); 2097 result.append(buffer); 2098 snprintf(buffer, SIZE, " Master mono: %s\n", mMasterMono ? "on" : "off"); 2099 result.append(buffer); 2100 2101 write(fd, result.string(), result.size()); 2102 2103 mAvailableOutputDevices.dump(fd, String8("Available output")); 2104 mAvailableInputDevices.dump(fd, String8("Available input")); 2105 mHwModules.dump(fd); 2106 mOutputs.dump(fd); 2107 mInputs.dump(fd); 2108 mVolumeCurves->dump(fd); 2109 mEffects.dump(fd); 2110 mAudioPatches.dump(fd); 2111 2112 return NO_ERROR; 2113} 2114 2115// This function checks for the parameters which can be offloaded. 2116// This can be enhanced depending on the capability of the DSP and policy 2117// of the system. 2118bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 2119{ 2120 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 2121 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 2122 offloadInfo.sample_rate, offloadInfo.channel_mask, 2123 offloadInfo.format, 2124 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 2125 offloadInfo.has_video); 2126 2127 if (mMasterMono) { 2128 return false; // no offloading if mono is set. 2129 } 2130 2131 // Check if offload has been disabled 2132 char propValue[PROPERTY_VALUE_MAX]; 2133 if (property_get("audio.offload.disable", propValue, "0")) { 2134 if (atoi(propValue) != 0) { 2135 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 2136 return false; 2137 } 2138 } 2139 2140 // Check if stream type is music, then only allow offload as of now. 2141 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 2142 { 2143 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 2144 return false; 2145 } 2146 2147 //TODO: enable audio offloading with video when ready 2148 const bool allowOffloadWithVideo = 2149 property_get_bool("audio.offload.video", false /* default_value */); 2150 if (offloadInfo.has_video && !allowOffloadWithVideo) { 2151 ALOGV("isOffloadSupported: has_video == true, returning false"); 2152 return false; 2153 } 2154 2155 //If duration is less than minimum value defined in property, return false 2156 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2157 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2158 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2159 return false; 2160 } 2161 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2162 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2163 return false; 2164 } 2165 2166 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2167 // creating an offloaded track and tearing it down immediately after start when audioflinger 2168 // detects there is an active non offloadable effect. 2169 // FIXME: We should check the audio session here but we do not have it in this context. 2170 // This may prevent offloading in rare situations where effects are left active by apps 2171 // in the background. 2172 if (mEffects.isNonOffloadableEffectEnabled()) { 2173 return false; 2174 } 2175 2176 // See if there is a profile to support this. 2177 // AUDIO_DEVICE_NONE 2178 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2179 offloadInfo.sample_rate, 2180 offloadInfo.format, 2181 offloadInfo.channel_mask, 2182 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2183 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2184 return (profile != 0); 2185} 2186 2187status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2188 audio_port_type_t type, 2189 unsigned int *num_ports, 2190 struct audio_port *ports, 2191 unsigned int *generation) 2192{ 2193 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2194 generation == NULL) { 2195 return BAD_VALUE; 2196 } 2197 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2198 if (ports == NULL) { 2199 *num_ports = 0; 2200 } 2201 2202 size_t portsWritten = 0; 2203 size_t portsMax = *num_ports; 2204 *num_ports = 0; 2205 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2206 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2207 for (size_t i = 0; 2208 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2209 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2210 } 2211 *num_ports += mAvailableOutputDevices.size(); 2212 } 2213 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2214 for (size_t i = 0; 2215 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2216 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2217 } 2218 *num_ports += mAvailableInputDevices.size(); 2219 } 2220 } 2221 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2222 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2223 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2224 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2225 } 2226 *num_ports += mInputs.size(); 2227 } 2228 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2229 size_t numOutputs = 0; 2230 for (size_t i = 0; i < mOutputs.size(); i++) { 2231 if (!mOutputs[i]->isDuplicated()) { 2232 numOutputs++; 2233 if (portsWritten < portsMax) { 2234 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2235 } 2236 } 2237 } 2238 *num_ports += numOutputs; 2239 } 2240 } 2241 *generation = curAudioPortGeneration(); 2242 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2243 return NO_ERROR; 2244} 2245 2246status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2247{ 2248 return NO_ERROR; 2249} 2250 2251status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2252 audio_patch_handle_t *handle, 2253 uid_t uid) 2254{ 2255 ALOGV("createAudioPatch()"); 2256 2257 if (handle == NULL || patch == NULL) { 2258 return BAD_VALUE; 2259 } 2260 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2261 2262 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2263 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2264 return BAD_VALUE; 2265 } 2266 // only one source per audio patch supported for now 2267 if (patch->num_sources > 1) { 2268 return INVALID_OPERATION; 2269 } 2270 2271 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2272 return INVALID_OPERATION; 2273 } 2274 for (size_t i = 0; i < patch->num_sinks; i++) { 2275 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2276 return INVALID_OPERATION; 2277 } 2278 } 2279 2280 sp<AudioPatch> patchDesc; 2281 ssize_t index = mAudioPatches.indexOfKey(*handle); 2282 2283 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2284 patch->sources[0].role, 2285 patch->sources[0].type); 2286#if LOG_NDEBUG == 0 2287 for (size_t i = 0; i < patch->num_sinks; i++) { 2288 ALOGV("createAudioPatch sink %zu: id %d role %d type %d", i, patch->sinks[i].id, 2289 patch->sinks[i].role, 2290 patch->sinks[i].type); 2291 } 2292#endif 2293 2294 if (index >= 0) { 2295 patchDesc = mAudioPatches.valueAt(index); 2296 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2297 mUidCached, patchDesc->mUid, uid); 2298 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2299 return INVALID_OPERATION; 2300 } 2301 } else { 2302 *handle = 0; 2303 } 2304 2305 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2306 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(patch->sources[0].id); 2307 if (outputDesc == NULL) { 2308 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2309 return BAD_VALUE; 2310 } 2311 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2312 outputDesc->mIoHandle); 2313 if (patchDesc != 0) { 2314 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2315 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2316 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2317 return BAD_VALUE; 2318 } 2319 } 2320 DeviceVector devices; 2321 for (size_t i = 0; i < patch->num_sinks; i++) { 2322 // Only support mix to devices connection 2323 // TODO add support for mix to mix connection 2324 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2325 ALOGV("createAudioPatch() source mix but sink is not a device"); 2326 return INVALID_OPERATION; 2327 } 2328 sp<DeviceDescriptor> devDesc = 2329 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2330 if (devDesc == 0) { 2331 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2332 return BAD_VALUE; 2333 } 2334 2335 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->type(), 2336 devDesc->mAddress, 2337 patch->sources[0].sample_rate, 2338 NULL, // updatedSamplingRate 2339 patch->sources[0].format, 2340 NULL, // updatedFormat 2341 patch->sources[0].channel_mask, 2342 NULL, // updatedChannelMask 2343 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2344 ALOGV("createAudioPatch() profile not supported for device %08x", 2345 devDesc->type()); 2346 return INVALID_OPERATION; 2347 } 2348 devices.add(devDesc); 2349 } 2350 if (devices.size() == 0) { 2351 return INVALID_OPERATION; 2352 } 2353 2354 // TODO: reconfigure output format and channels here 2355 ALOGV("createAudioPatch() setting device %08x on output %d", 2356 devices.types(), outputDesc->mIoHandle); 2357 setOutputDevice(outputDesc, devices.types(), true, 0, handle); 2358 index = mAudioPatches.indexOfKey(*handle); 2359 if (index >= 0) { 2360 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2361 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2362 } 2363 patchDesc = mAudioPatches.valueAt(index); 2364 patchDesc->mUid = uid; 2365 ALOGV("createAudioPatch() success"); 2366 } else { 2367 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2368 return INVALID_OPERATION; 2369 } 2370 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2371 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2372 // input device to input mix connection 2373 // only one sink supported when connecting an input device to a mix 2374 if (patch->num_sinks > 1) { 2375 return INVALID_OPERATION; 2376 } 2377 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(patch->sinks[0].id); 2378 if (inputDesc == NULL) { 2379 return BAD_VALUE; 2380 } 2381 if (patchDesc != 0) { 2382 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2383 return BAD_VALUE; 2384 } 2385 } 2386 sp<DeviceDescriptor> devDesc = 2387 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2388 if (devDesc == 0) { 2389 return BAD_VALUE; 2390 } 2391 2392 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->type(), 2393 devDesc->mAddress, 2394 patch->sinks[0].sample_rate, 2395 NULL, /*updatedSampleRate*/ 2396 patch->sinks[0].format, 2397 NULL, /*updatedFormat*/ 2398 patch->sinks[0].channel_mask, 2399 NULL, /*updatedChannelMask*/ 2400 // FIXME for the parameter type, 2401 // and the NONE 2402 (audio_output_flags_t) 2403 AUDIO_INPUT_FLAG_NONE)) { 2404 return INVALID_OPERATION; 2405 } 2406 // TODO: reconfigure output format and channels here 2407 ALOGV("createAudioPatch() setting device %08x on output %d", 2408 devDesc->type(), inputDesc->mIoHandle); 2409 setInputDevice(inputDesc->mIoHandle, devDesc->type(), true, handle); 2410 index = mAudioPatches.indexOfKey(*handle); 2411 if (index >= 0) { 2412 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2413 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2414 } 2415 patchDesc = mAudioPatches.valueAt(index); 2416 patchDesc->mUid = uid; 2417 ALOGV("createAudioPatch() success"); 2418 } else { 2419 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2420 return INVALID_OPERATION; 2421 } 2422 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2423 // device to device connection 2424 if (patchDesc != 0) { 2425 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2426 return BAD_VALUE; 2427 } 2428 } 2429 sp<DeviceDescriptor> srcDeviceDesc = 2430 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2431 if (srcDeviceDesc == 0) { 2432 return BAD_VALUE; 2433 } 2434 2435 //update source and sink with our own data as the data passed in the patch may 2436 // be incomplete. 2437 struct audio_patch newPatch = *patch; 2438 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2439 2440 for (size_t i = 0; i < patch->num_sinks; i++) { 2441 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2442 ALOGV("createAudioPatch() source device but one sink is not a device"); 2443 return INVALID_OPERATION; 2444 } 2445 2446 sp<DeviceDescriptor> sinkDeviceDesc = 2447 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2448 if (sinkDeviceDesc == 0) { 2449 return BAD_VALUE; 2450 } 2451 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2452 2453 // create a software bridge in PatchPanel if: 2454 // - source and sink devices are on differnt HW modules OR 2455 // - audio HAL version is < 3.0 2456 if ((srcDeviceDesc->getModuleHandle() != sinkDeviceDesc->getModuleHandle()) || 2457 (srcDeviceDesc->mModule->getHalVersion() < AUDIO_DEVICE_API_VERSION_3_0)) { 2458 // support only one sink device for now to simplify output selection logic 2459 if (patch->num_sinks > 1) { 2460 return INVALID_OPERATION; 2461 } 2462 SortedVector<audio_io_handle_t> outputs = 2463 getOutputsForDevice(sinkDeviceDesc->type(), mOutputs); 2464 // if the sink device is reachable via an opened output stream, request to go via 2465 // this output stream by adding a second source to the patch description 2466 audio_io_handle_t output = selectOutput(outputs, 2467 AUDIO_OUTPUT_FLAG_NONE, 2468 AUDIO_FORMAT_INVALID); 2469 if (output != AUDIO_IO_HANDLE_NONE) { 2470 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2471 if (outputDesc->isDuplicated()) { 2472 return INVALID_OPERATION; 2473 } 2474 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2475 newPatch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 2476 newPatch.num_sources = 2; 2477 } 2478 } 2479 } 2480 // TODO: check from routing capabilities in config file and other conflicting patches 2481 2482 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2483 if (index >= 0) { 2484 afPatchHandle = patchDesc->mAfPatchHandle; 2485 } 2486 2487 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2488 &afPatchHandle, 2489 0); 2490 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2491 status, afPatchHandle); 2492 if (status == NO_ERROR) { 2493 if (index < 0) { 2494 patchDesc = new AudioPatch(&newPatch, uid); 2495 addAudioPatch(patchDesc->mHandle, patchDesc); 2496 } else { 2497 patchDesc->mPatch = newPatch; 2498 } 2499 patchDesc->mAfPatchHandle = afPatchHandle; 2500 *handle = patchDesc->mHandle; 2501 nextAudioPortGeneration(); 2502 mpClientInterface->onAudioPatchListUpdate(); 2503 } else { 2504 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2505 status); 2506 return INVALID_OPERATION; 2507 } 2508 } else { 2509 return BAD_VALUE; 2510 } 2511 } else { 2512 return BAD_VALUE; 2513 } 2514 return NO_ERROR; 2515} 2516 2517status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2518 uid_t uid) 2519{ 2520 ALOGV("releaseAudioPatch() patch %d", handle); 2521 2522 ssize_t index = mAudioPatches.indexOfKey(handle); 2523 2524 if (index < 0) { 2525 return BAD_VALUE; 2526 } 2527 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2528 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2529 mUidCached, patchDesc->mUid, uid); 2530 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2531 return INVALID_OPERATION; 2532 } 2533 2534 struct audio_patch *patch = &patchDesc->mPatch; 2535 patchDesc->mUid = mUidCached; 2536 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2537 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(patch->sources[0].id); 2538 if (outputDesc == NULL) { 2539 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2540 return BAD_VALUE; 2541 } 2542 2543 setOutputDevice(outputDesc, 2544 getNewOutputDevice(outputDesc, true /*fromCache*/), 2545 true, 2546 0, 2547 NULL); 2548 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2549 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2550 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(patch->sinks[0].id); 2551 if (inputDesc == NULL) { 2552 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2553 return BAD_VALUE; 2554 } 2555 setInputDevice(inputDesc->mIoHandle, 2556 getNewInputDevice(inputDesc->mIoHandle), 2557 true, 2558 NULL); 2559 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2560 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2561 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2562 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2563 status, patchDesc->mAfPatchHandle); 2564 removeAudioPatch(patchDesc->mHandle); 2565 nextAudioPortGeneration(); 2566 mpClientInterface->onAudioPatchListUpdate(); 2567 } else { 2568 return BAD_VALUE; 2569 } 2570 } else { 2571 return BAD_VALUE; 2572 } 2573 return NO_ERROR; 2574} 2575 2576status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2577 struct audio_patch *patches, 2578 unsigned int *generation) 2579{ 2580 if (generation == NULL) { 2581 return BAD_VALUE; 2582 } 2583 *generation = curAudioPortGeneration(); 2584 return mAudioPatches.listAudioPatches(num_patches, patches); 2585} 2586 2587status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2588{ 2589 ALOGV("setAudioPortConfig()"); 2590 2591 if (config == NULL) { 2592 return BAD_VALUE; 2593 } 2594 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2595 // Only support gain configuration for now 2596 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2597 return INVALID_OPERATION; 2598 } 2599 2600 sp<AudioPortConfig> audioPortConfig; 2601 if (config->type == AUDIO_PORT_TYPE_MIX) { 2602 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2603 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(config->id); 2604 if (outputDesc == NULL) { 2605 return BAD_VALUE; 2606 } 2607 ALOG_ASSERT(!outputDesc->isDuplicated(), 2608 "setAudioPortConfig() called on duplicated output %d", 2609 outputDesc->mIoHandle); 2610 audioPortConfig = outputDesc; 2611 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2612 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(config->id); 2613 if (inputDesc == NULL) { 2614 return BAD_VALUE; 2615 } 2616 audioPortConfig = inputDesc; 2617 } else { 2618 return BAD_VALUE; 2619 } 2620 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2621 sp<DeviceDescriptor> deviceDesc; 2622 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2623 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2624 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2625 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2626 } else { 2627 return BAD_VALUE; 2628 } 2629 if (deviceDesc == NULL) { 2630 return BAD_VALUE; 2631 } 2632 audioPortConfig = deviceDesc; 2633 } else { 2634 return BAD_VALUE; 2635 } 2636 2637 struct audio_port_config backupConfig; 2638 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2639 if (status == NO_ERROR) { 2640 struct audio_port_config newConfig; 2641 audioPortConfig->toAudioPortConfig(&newConfig, config); 2642 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2643 } 2644 if (status != NO_ERROR) { 2645 audioPortConfig->applyAudioPortConfig(&backupConfig); 2646 } 2647 2648 return status; 2649} 2650 2651void AudioPolicyManager::releaseResourcesForUid(uid_t uid) 2652{ 2653 clearAudioSources(uid); 2654 clearAudioPatches(uid); 2655 clearSessionRoutes(uid); 2656} 2657 2658void AudioPolicyManager::clearAudioPatches(uid_t uid) 2659{ 2660 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 2661 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2662 if (patchDesc->mUid == uid) { 2663 releaseAudioPatch(mAudioPatches.keyAt(i), uid); 2664 } 2665 } 2666} 2667 2668void AudioPolicyManager::checkStrategyRoute(routing_strategy strategy, 2669 audio_io_handle_t ouptutToSkip) 2670{ 2671 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 2672 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 2673 for (size_t j = 0; j < mOutputs.size(); j++) { 2674 if (mOutputs.keyAt(j) == ouptutToSkip) { 2675 continue; 2676 } 2677 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(j); 2678 if (!isStrategyActive(outputDesc, (routing_strategy)strategy)) { 2679 continue; 2680 } 2681 // If the default device for this strategy is on another output mix, 2682 // invalidate all tracks in this strategy to force re connection. 2683 // Otherwise select new device on the output mix. 2684 if (outputs.indexOf(mOutputs.keyAt(j)) < 0) { 2685 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 2686 if (stream == AUDIO_STREAM_PATCH) { 2687 continue; 2688 } 2689 if (getStrategy((audio_stream_type_t)stream) == strategy) { 2690 mpClientInterface->invalidateStream((audio_stream_type_t)stream); 2691 } 2692 } 2693 } else { 2694 audio_devices_t newDevice = getNewOutputDevice(outputDesc, false /*fromCache*/); 2695 setOutputDevice(outputDesc, newDevice, false); 2696 } 2697 } 2698} 2699 2700void AudioPolicyManager::clearSessionRoutes(uid_t uid) 2701{ 2702 // remove output routes associated with this uid 2703 SortedVector<routing_strategy> affectedStrategies; 2704 for (ssize_t i = (ssize_t)mOutputRoutes.size() - 1; i >= 0; i--) { 2705 sp<SessionRoute> route = mOutputRoutes.valueAt(i); 2706 if (route->mUid == uid) { 2707 mOutputRoutes.removeItemsAt(i); 2708 if (route->mDeviceDescriptor != 0) { 2709 affectedStrategies.add(getStrategy(route->mStreamType)); 2710 } 2711 } 2712 } 2713 // reroute outputs if necessary 2714 for (size_t i = 0; i < affectedStrategies.size(); i++) { 2715 checkStrategyRoute(affectedStrategies[i], AUDIO_IO_HANDLE_NONE); 2716 } 2717 2718 // remove input routes associated with this uid 2719 SortedVector<audio_source_t> affectedSources; 2720 for (ssize_t i = (ssize_t)mInputRoutes.size() - 1; i >= 0; i--) { 2721 sp<SessionRoute> route = mInputRoutes.valueAt(i); 2722 if (route->mUid == uid) { 2723 mInputRoutes.removeItemsAt(i); 2724 if (route->mDeviceDescriptor != 0) { 2725 affectedSources.add(route->mSource); 2726 } 2727 } 2728 } 2729 // reroute inputs if necessary 2730 SortedVector<audio_io_handle_t> inputsToClose; 2731 for (size_t i = 0; i < mInputs.size(); i++) { 2732 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(i); 2733 if (affectedSources.indexOf(inputDesc->inputSource()) >= 0) { 2734 inputsToClose.add(inputDesc->mIoHandle); 2735 } 2736 } 2737 for (size_t i = 0; i < inputsToClose.size(); i++) { 2738 closeInput(inputsToClose[i]); 2739 } 2740} 2741 2742void AudioPolicyManager::clearAudioSources(uid_t uid) 2743{ 2744 for (ssize_t i = (ssize_t)mAudioSources.size() - 1; i >= 0; i--) { 2745 sp<AudioSourceDescriptor> sourceDesc = mAudioSources.valueAt(i); 2746 if (sourceDesc->mUid == uid) { 2747 stopAudioSource(mAudioSources.keyAt(i)); 2748 } 2749 } 2750} 2751 2752status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2753 audio_io_handle_t *ioHandle, 2754 audio_devices_t *device) 2755{ 2756 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2757 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2758 *device = getDeviceAndMixForInputSource(AUDIO_SOURCE_HOTWORD); 2759 2760 return mSoundTriggerSessions.acquireSession(*session, *ioHandle); 2761} 2762 2763status_t AudioPolicyManager::startAudioSource(const struct audio_port_config *source, 2764 const audio_attributes_t *attributes, 2765 audio_io_handle_t *handle, 2766 uid_t uid) 2767{ 2768 ALOGV("%s source %p attributes %p handle %p", __FUNCTION__, source, attributes, handle); 2769 if (source == NULL || attributes == NULL || handle == NULL) { 2770 return BAD_VALUE; 2771 } 2772 2773 *handle = AUDIO_IO_HANDLE_NONE; 2774 2775 if (source->role != AUDIO_PORT_ROLE_SOURCE || 2776 source->type != AUDIO_PORT_TYPE_DEVICE) { 2777 ALOGV("%s INVALID_OPERATION source->role %d source->type %d", __FUNCTION__, source->role, source->type); 2778 return INVALID_OPERATION; 2779 } 2780 2781 sp<DeviceDescriptor> srcDeviceDesc = 2782 mAvailableInputDevices.getDevice(source->ext.device.type, 2783 String8(source->ext.device.address)); 2784 if (srcDeviceDesc == 0) { 2785 ALOGV("%s source->ext.device.type %08x not found", __FUNCTION__, source->ext.device.type); 2786 return BAD_VALUE; 2787 } 2788 sp<AudioSourceDescriptor> sourceDesc = 2789 new AudioSourceDescriptor(srcDeviceDesc, attributes, uid); 2790 2791 struct audio_patch dummyPatch; 2792 sp<AudioPatch> patchDesc = new AudioPatch(&dummyPatch, uid); 2793 sourceDesc->mPatchDesc = patchDesc; 2794 2795 status_t status = connectAudioSource(sourceDesc); 2796 if (status == NO_ERROR) { 2797 mAudioSources.add(sourceDesc->getHandle(), sourceDesc); 2798 *handle = sourceDesc->getHandle(); 2799 } 2800 return status; 2801} 2802 2803status_t AudioPolicyManager::connectAudioSource(const sp<AudioSourceDescriptor>& sourceDesc) 2804{ 2805 ALOGV("%s handle %d", __FUNCTION__, sourceDesc->getHandle()); 2806 2807 // make sure we only have one patch per source. 2808 disconnectAudioSource(sourceDesc); 2809 2810 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&sourceDesc->mAttributes); 2811 audio_stream_type_t stream = audio_attributes_to_stream_type(&sourceDesc->mAttributes); 2812 sp<DeviceDescriptor> srcDeviceDesc = sourceDesc->mDevice; 2813 2814 audio_devices_t sinkDevice = getDeviceForStrategy(strategy, true); 2815 sp<DeviceDescriptor> sinkDeviceDesc = 2816 mAvailableOutputDevices.getDevice(sinkDevice, String8("")); 2817 2818 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2819 struct audio_patch *patch = &sourceDesc->mPatchDesc->mPatch; 2820 2821 if (srcDeviceDesc->getAudioPort()->mModule->getHandle() == 2822 sinkDeviceDesc->getAudioPort()->mModule->getHandle() && 2823 srcDeviceDesc->getAudioPort()->mModule->getHalVersion() >= AUDIO_DEVICE_API_VERSION_3_0 && 2824 srcDeviceDesc->getAudioPort()->mGains.size() > 0) { 2825 ALOGV("%s AUDIO_DEVICE_API_VERSION_3_0", __FUNCTION__); 2826 // create patch between src device and output device 2827 // create Hwoutput and add to mHwOutputs 2828 } else { 2829 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(sinkDevice, mOutputs); 2830 audio_io_handle_t output = 2831 selectOutput(outputs, AUDIO_OUTPUT_FLAG_NONE, AUDIO_FORMAT_INVALID); 2832 if (output == AUDIO_IO_HANDLE_NONE) { 2833 ALOGV("%s no output for device %08x", __FUNCTION__, sinkDevice); 2834 return INVALID_OPERATION; 2835 } 2836 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2837 if (outputDesc->isDuplicated()) { 2838 ALOGV("%s output for device %08x is duplicated", __FUNCTION__, sinkDevice); 2839 return INVALID_OPERATION; 2840 } 2841 // create a special patch with no sink and two sources: 2842 // - the second source indicates to PatchPanel through which output mix this patch should 2843 // be connected as well as the stream type for volume control 2844 // - the sink is defined by whatever output device is currently selected for the output 2845 // though which this patch is routed. 2846 patch->num_sinks = 0; 2847 patch->num_sources = 2; 2848 srcDeviceDesc->toAudioPortConfig(&patch->sources[0], NULL); 2849 outputDesc->toAudioPortConfig(&patch->sources[1], NULL); 2850 patch->sources[1].ext.mix.usecase.stream = stream; 2851 status_t status = mpClientInterface->createAudioPatch(patch, 2852 &afPatchHandle, 2853 0); 2854 ALOGV("%s patch panel returned %d patchHandle %d", __FUNCTION__, 2855 status, afPatchHandle); 2856 if (status != NO_ERROR) { 2857 ALOGW("%s patch panel could not connect device patch, error %d", 2858 __FUNCTION__, status); 2859 return INVALID_OPERATION; 2860 } 2861 uint32_t delayMs = 0; 2862 status = startSource(outputDesc, stream, sinkDevice, &delayMs); 2863 2864 if (status != NO_ERROR) { 2865 mpClientInterface->releaseAudioPatch(sourceDesc->mPatchDesc->mAfPatchHandle, 0); 2866 return status; 2867 } 2868 sourceDesc->mSwOutput = outputDesc; 2869 if (delayMs != 0) { 2870 usleep(delayMs * 1000); 2871 } 2872 } 2873 2874 sourceDesc->mPatchDesc->mAfPatchHandle = afPatchHandle; 2875 addAudioPatch(sourceDesc->mPatchDesc->mHandle, sourceDesc->mPatchDesc); 2876 2877 return NO_ERROR; 2878} 2879 2880status_t AudioPolicyManager::stopAudioSource(audio_io_handle_t handle __unused) 2881{ 2882 sp<AudioSourceDescriptor> sourceDesc = mAudioSources.valueFor(handle); 2883 ALOGV("%s handle %d", __FUNCTION__, handle); 2884 if (sourceDesc == 0) { 2885 ALOGW("%s unknown source for handle %d", __FUNCTION__, handle); 2886 return BAD_VALUE; 2887 } 2888 status_t status = disconnectAudioSource(sourceDesc); 2889 2890 mAudioSources.removeItem(handle); 2891 return status; 2892} 2893 2894status_t AudioPolicyManager::setMasterMono(bool mono) 2895{ 2896 if (mMasterMono == mono) { 2897 return NO_ERROR; 2898 } 2899 mMasterMono = mono; 2900 // if enabling mono we close all offloaded devices, which will invalidate the 2901 // corresponding AudioTrack. The AudioTrack client/MediaPlayer is responsible 2902 // for recreating the new AudioTrack as non-offloaded PCM. 2903 // 2904 // If disabling mono, we leave all tracks as is: we don't know which clients 2905 // and tracks are able to be recreated as offloaded. The next "song" should 2906 // play back offloaded. 2907 if (mMasterMono) { 2908 Vector<audio_io_handle_t> offloaded; 2909 for (size_t i = 0; i < mOutputs.size(); ++i) { 2910 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 2911 if (desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) { 2912 offloaded.push(desc->mIoHandle); 2913 } 2914 } 2915 for (size_t i = 0; i < offloaded.size(); ++i) { 2916 closeOutput(offloaded[i]); 2917 } 2918 } 2919 // update master mono for all remaining outputs 2920 for (size_t i = 0; i < mOutputs.size(); ++i) { 2921 updateMono(mOutputs.keyAt(i)); 2922 } 2923 return NO_ERROR; 2924} 2925 2926status_t AudioPolicyManager::getMasterMono(bool *mono) 2927{ 2928 *mono = mMasterMono; 2929 return NO_ERROR; 2930} 2931 2932status_t AudioPolicyManager::disconnectAudioSource(const sp<AudioSourceDescriptor>& sourceDesc) 2933{ 2934 ALOGV("%s handle %d", __FUNCTION__, sourceDesc->getHandle()); 2935 2936 sp<AudioPatch> patchDesc = mAudioPatches.valueFor(sourceDesc->mPatchDesc->mHandle); 2937 if (patchDesc == 0) { 2938 ALOGW("%s source has no patch with handle %d", __FUNCTION__, 2939 sourceDesc->mPatchDesc->mHandle); 2940 return BAD_VALUE; 2941 } 2942 removeAudioPatch(sourceDesc->mPatchDesc->mHandle); 2943 2944 audio_stream_type_t stream = audio_attributes_to_stream_type(&sourceDesc->mAttributes); 2945 sp<SwAudioOutputDescriptor> swOutputDesc = sourceDesc->mSwOutput.promote(); 2946 if (swOutputDesc != 0) { 2947 stopSource(swOutputDesc, stream, false); 2948 mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2949 } else { 2950 sp<HwAudioOutputDescriptor> hwOutputDesc = sourceDesc->mHwOutput.promote(); 2951 if (hwOutputDesc != 0) { 2952 // release patch between src device and output device 2953 // close Hwoutput and remove from mHwOutputs 2954 } else { 2955 ALOGW("%s source has neither SW nor HW output", __FUNCTION__); 2956 } 2957 } 2958 return NO_ERROR; 2959} 2960 2961sp<AudioSourceDescriptor> AudioPolicyManager::getSourceForStrategyOnOutput( 2962 audio_io_handle_t output, routing_strategy strategy) 2963{ 2964 sp<AudioSourceDescriptor> source; 2965 for (size_t i = 0; i < mAudioSources.size(); i++) { 2966 sp<AudioSourceDescriptor> sourceDesc = mAudioSources.valueAt(i); 2967 routing_strategy sourceStrategy = 2968 (routing_strategy) getStrategyForAttr(&sourceDesc->mAttributes); 2969 sp<SwAudioOutputDescriptor> outputDesc = sourceDesc->mSwOutput.promote(); 2970 if (sourceStrategy == strategy && outputDesc != 0 && outputDesc->mIoHandle == output) { 2971 source = sourceDesc; 2972 break; 2973 } 2974 } 2975 return source; 2976} 2977 2978// ---------------------------------------------------------------------------- 2979// AudioPolicyManager 2980// ---------------------------------------------------------------------------- 2981uint32_t AudioPolicyManager::nextAudioPortGeneration() 2982{ 2983 return android_atomic_inc(&mAudioPortGeneration); 2984} 2985 2986AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2987 : 2988#ifdef AUDIO_POLICY_TEST 2989 Thread(false), 2990#endif //AUDIO_POLICY_TEST 2991 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2992 mA2dpSuspended(false), 2993 mAudioPortGeneration(1), 2994 mBeaconMuteRefCount(0), 2995 mBeaconPlayingRefCount(0), 2996 mBeaconMuted(false), 2997 mTtsOutputAvailable(false), 2998 mMasterMono(false) 2999{ 3000 mUidCached = getuid(); 3001 mpClientInterface = clientInterface; 3002 3003 // TODO: remove when legacy conf file is removed. true on devices that use DRC on the 3004 // DEVICE_CATEGORY_SPEAKER path to boost soft sounds, used to adjust volume curves accordingly. 3005 // Note: remove also speaker_drc_enabled from global configuration of XML config file. 3006 bool speakerDrcEnabled = false; 3007 3008#ifdef USE_XML_AUDIO_POLICY_CONF 3009 mVolumeCurves = new VolumeCurvesCollection(); 3010 AudioPolicyConfig config(mHwModules, mAvailableOutputDevices, mAvailableInputDevices, 3011 mDefaultOutputDevice, speakerDrcEnabled, 3012 static_cast<VolumeCurvesCollection *>(mVolumeCurves)); 3013 PolicySerializer serializer; 3014 if (serializer.deserialize(AUDIO_POLICY_XML_CONFIG_FILE, config) != NO_ERROR) { 3015#else 3016 mVolumeCurves = new StreamDescriptorCollection(); 3017 AudioPolicyConfig config(mHwModules, mAvailableOutputDevices, mAvailableInputDevices, 3018 mDefaultOutputDevice, speakerDrcEnabled); 3019 if ((ConfigParsingUtils::loadConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE, config) != NO_ERROR) && 3020 (ConfigParsingUtils::loadConfig(AUDIO_POLICY_CONFIG_FILE, config) != NO_ERROR)) { 3021#endif 3022 ALOGE("could not load audio policy configuration file, setting defaults"); 3023 config.setDefault(); 3024 } 3025 // must be done after reading the policy (since conditionned by Speaker Drc Enabling) 3026 mVolumeCurves->initializeVolumeCurves(speakerDrcEnabled); 3027 3028 // Once policy config has been parsed, retrieve an instance of the engine and initialize it. 3029 audio_policy::EngineInstance *engineInstance = audio_policy::EngineInstance::getInstance(); 3030 if (!engineInstance) { 3031 ALOGE("%s: Could not get an instance of policy engine", __FUNCTION__); 3032 return; 3033 } 3034 // Retrieve the Policy Manager Interface 3035 mEngine = engineInstance->queryInterface<AudioPolicyManagerInterface>(); 3036 if (mEngine == NULL) { 3037 ALOGE("%s: Failed to get Policy Engine Interface", __FUNCTION__); 3038 return; 3039 } 3040 mEngine->setObserver(this); 3041 status_t status = mEngine->initCheck(); 3042 ALOG_ASSERT(status == NO_ERROR, "Policy engine not initialized(err=%d)", status); 3043 3044 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 3045 // open all output streams needed to access attached devices 3046 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 3047 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 3048 for (size_t i = 0; i < mHwModules.size(); i++) { 3049 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->getName()); 3050 if (mHwModules[i]->mHandle == 0) { 3051 ALOGW("could not open HW module %s", mHwModules[i]->getName()); 3052 continue; 3053 } 3054 // open all output streams needed to access attached devices 3055 // except for direct output streams that are only opened when they are actually 3056 // required by an app. 3057 // This also validates mAvailableOutputDevices list 3058 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3059 { 3060 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 3061 3062 if (!outProfile->hasSupportedDevices()) { 3063 ALOGW("Output profile contains no device on module %s", mHwModules[i]->getName()); 3064 continue; 3065 } 3066 if ((outProfile->getFlags() & AUDIO_OUTPUT_FLAG_TTS) != 0) { 3067 mTtsOutputAvailable = true; 3068 } 3069 3070 if ((outProfile->getFlags() & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 3071 continue; 3072 } 3073 audio_devices_t profileType = outProfile->getSupportedDevicesType(); 3074 if ((profileType & mDefaultOutputDevice->type()) != AUDIO_DEVICE_NONE) { 3075 profileType = mDefaultOutputDevice->type(); 3076 } else { 3077 // chose first device present in profile's SupportedDevices also part of 3078 // outputDeviceTypes 3079 profileType = outProfile->getSupportedDeviceForType(outputDeviceTypes); 3080 } 3081 if ((profileType & outputDeviceTypes) == 0) { 3082 continue; 3083 } 3084 sp<SwAudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(outProfile, 3085 mpClientInterface); 3086 3087 outputDesc->mDevice = profileType; 3088 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3089 config.sample_rate = outputDesc->mSamplingRate; 3090 config.channel_mask = outputDesc->mChannelMask; 3091 config.format = outputDesc->mFormat; 3092 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3093 status_t status = mpClientInterface->openOutput(outProfile->getModuleHandle(), 3094 &output, 3095 &config, 3096 &outputDesc->mDevice, 3097 String8(""), 3098 &outputDesc->mLatency, 3099 outputDesc->mFlags); 3100 3101 if (status != NO_ERROR) { 3102 ALOGW("Cannot open output stream for device %08x on hw module %s", 3103 outputDesc->mDevice, 3104 mHwModules[i]->getName()); 3105 } else { 3106 outputDesc->mSamplingRate = config.sample_rate; 3107 outputDesc->mChannelMask = config.channel_mask; 3108 outputDesc->mFormat = config.format; 3109 3110 const DeviceVector &supportedDevices = outProfile->getSupportedDevices(); 3111 for (size_t k = 0; k < supportedDevices.size(); k++) { 3112 ssize_t index = mAvailableOutputDevices.indexOf(supportedDevices[k]); 3113 // give a valid ID to an attached device once confirmed it is reachable 3114 if (index >= 0 && !mAvailableOutputDevices[index]->isAttached()) { 3115 mAvailableOutputDevices[index]->attach(mHwModules[i]); 3116 } 3117 } 3118 if (mPrimaryOutput == 0 && 3119 outProfile->getFlags() & AUDIO_OUTPUT_FLAG_PRIMARY) { 3120 mPrimaryOutput = outputDesc; 3121 } 3122 addOutput(output, outputDesc); 3123 setOutputDevice(outputDesc, 3124 outputDesc->mDevice, 3125 true); 3126 } 3127 } 3128 // open input streams needed to access attached devices to validate 3129 // mAvailableInputDevices list 3130 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 3131 { 3132 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 3133 3134 if (!inProfile->hasSupportedDevices()) { 3135 ALOGW("Input profile contains no device on module %s", mHwModules[i]->getName()); 3136 continue; 3137 } 3138 // chose first device present in profile's SupportedDevices also part of 3139 // inputDeviceTypes 3140 audio_devices_t profileType = inProfile->getSupportedDeviceForType(inputDeviceTypes); 3141 3142 if ((profileType & inputDeviceTypes) == 0) { 3143 continue; 3144 } 3145 sp<AudioInputDescriptor> inputDesc = 3146 new AudioInputDescriptor(inProfile); 3147 3148 inputDesc->mDevice = profileType; 3149 3150 // find the address 3151 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 3152 // the inputs vector must be of size 1, but we don't want to crash here 3153 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 3154 : String8(""); 3155 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 3156 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 3157 3158 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3159 config.sample_rate = inputDesc->mSamplingRate; 3160 config.channel_mask = inputDesc->mChannelMask; 3161 config.format = inputDesc->mFormat; 3162 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3163 status_t status = mpClientInterface->openInput(inProfile->getModuleHandle(), 3164 &input, 3165 &config, 3166 &inputDesc->mDevice, 3167 address, 3168 AUDIO_SOURCE_MIC, 3169 AUDIO_INPUT_FLAG_NONE); 3170 3171 if (status == NO_ERROR) { 3172 const DeviceVector &supportedDevices = inProfile->getSupportedDevices(); 3173 for (size_t k = 0; k < supportedDevices.size(); k++) { 3174 ssize_t index = mAvailableInputDevices.indexOf(supportedDevices[k]); 3175 // give a valid ID to an attached device once confirmed it is reachable 3176 if (index >= 0) { 3177 sp<DeviceDescriptor> devDesc = mAvailableInputDevices[index]; 3178 if (!devDesc->isAttached()) { 3179 devDesc->attach(mHwModules[i]); 3180 devDesc->importAudioPort(inProfile); 3181 } 3182 } 3183 } 3184 mpClientInterface->closeInput(input); 3185 } else { 3186 ALOGW("Cannot open input stream for device %08x on hw module %s", 3187 inputDesc->mDevice, 3188 mHwModules[i]->getName()); 3189 } 3190 } 3191 } 3192 // make sure all attached devices have been allocated a unique ID 3193 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 3194 if (!mAvailableOutputDevices[i]->isAttached()) { 3195 ALOGW("Output device %08x unreachable", mAvailableOutputDevices[i]->type()); 3196 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 3197 continue; 3198 } 3199 // The device is now validated and can be appended to the available devices of the engine 3200 mEngine->setDeviceConnectionState(mAvailableOutputDevices[i], 3201 AUDIO_POLICY_DEVICE_STATE_AVAILABLE); 3202 i++; 3203 } 3204 for (size_t i = 0; i < mAvailableInputDevices.size();) { 3205 if (!mAvailableInputDevices[i]->isAttached()) { 3206 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->type()); 3207 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 3208 continue; 3209 } 3210 // The device is now validated and can be appended to the available devices of the engine 3211 mEngine->setDeviceConnectionState(mAvailableInputDevices[i], 3212 AUDIO_POLICY_DEVICE_STATE_AVAILABLE); 3213 i++; 3214 } 3215 // make sure default device is reachable 3216 if (mDefaultOutputDevice == 0 || mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 3217 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->type()); 3218 } 3219 3220 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 3221 3222 updateDevicesAndOutputs(); 3223 3224#ifdef AUDIO_POLICY_TEST 3225 if (mPrimaryOutput != 0) { 3226 AudioParameter outputCmd = AudioParameter(); 3227 outputCmd.addInt(String8("set_id"), 0); 3228 mpClientInterface->setParameters(mPrimaryOutput->mIoHandle, outputCmd.toString()); 3229 3230 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 3231 mTestSamplingRate = 44100; 3232 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 3233 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 3234 mTestLatencyMs = 0; 3235 mCurOutput = 0; 3236 mDirectOutput = false; 3237 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3238 mTestOutputs[i] = 0; 3239 } 3240 3241 const size_t SIZE = 256; 3242 char buffer[SIZE]; 3243 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 3244 run(buffer, ANDROID_PRIORITY_AUDIO); 3245 } 3246#endif //AUDIO_POLICY_TEST 3247} 3248 3249AudioPolicyManager::~AudioPolicyManager() 3250{ 3251#ifdef AUDIO_POLICY_TEST 3252 exit(); 3253#endif //AUDIO_POLICY_TEST 3254 for (size_t i = 0; i < mOutputs.size(); i++) { 3255 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 3256 } 3257 for (size_t i = 0; i < mInputs.size(); i++) { 3258 mpClientInterface->closeInput(mInputs.keyAt(i)); 3259 } 3260 mAvailableOutputDevices.clear(); 3261 mAvailableInputDevices.clear(); 3262 mOutputs.clear(); 3263 mInputs.clear(); 3264 mHwModules.clear(); 3265} 3266 3267status_t AudioPolicyManager::initCheck() 3268{ 3269 return hasPrimaryOutput() ? NO_ERROR : NO_INIT; 3270} 3271 3272#ifdef AUDIO_POLICY_TEST 3273bool AudioPolicyManager::threadLoop() 3274{ 3275 ALOGV("entering threadLoop()"); 3276 while (!exitPending()) 3277 { 3278 String8 command; 3279 int valueInt; 3280 String8 value; 3281 3282 Mutex::Autolock _l(mLock); 3283 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 3284 3285 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 3286 AudioParameter param = AudioParameter(command); 3287 3288 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 3289 valueInt != 0) { 3290 ALOGV("Test command %s received", command.string()); 3291 String8 target; 3292 if (param.get(String8("target"), target) != NO_ERROR) { 3293 target = "Manager"; 3294 } 3295 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 3296 param.remove(String8("test_cmd_policy_output")); 3297 mCurOutput = valueInt; 3298 } 3299 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 3300 param.remove(String8("test_cmd_policy_direct")); 3301 if (value == "false") { 3302 mDirectOutput = false; 3303 } else if (value == "true") { 3304 mDirectOutput = true; 3305 } 3306 } 3307 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 3308 param.remove(String8("test_cmd_policy_input")); 3309 mTestInput = valueInt; 3310 } 3311 3312 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 3313 param.remove(String8("test_cmd_policy_format")); 3314 int format = AUDIO_FORMAT_INVALID; 3315 if (value == "PCM 16 bits") { 3316 format = AUDIO_FORMAT_PCM_16_BIT; 3317 } else if (value == "PCM 8 bits") { 3318 format = AUDIO_FORMAT_PCM_8_BIT; 3319 } else if (value == "Compressed MP3") { 3320 format = AUDIO_FORMAT_MP3; 3321 } 3322 if (format != AUDIO_FORMAT_INVALID) { 3323 if (target == "Manager") { 3324 mTestFormat = format; 3325 } else if (mTestOutputs[mCurOutput] != 0) { 3326 AudioParameter outputParam = AudioParameter(); 3327 outputParam.addInt(String8("format"), format); 3328 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3329 } 3330 } 3331 } 3332 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3333 param.remove(String8("test_cmd_policy_channels")); 3334 int channels = 0; 3335 3336 if (value == "Channels Stereo") { 3337 channels = AUDIO_CHANNEL_OUT_STEREO; 3338 } else if (value == "Channels Mono") { 3339 channels = AUDIO_CHANNEL_OUT_MONO; 3340 } 3341 if (channels != 0) { 3342 if (target == "Manager") { 3343 mTestChannels = channels; 3344 } else if (mTestOutputs[mCurOutput] != 0) { 3345 AudioParameter outputParam = AudioParameter(); 3346 outputParam.addInt(String8("channels"), channels); 3347 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3348 } 3349 } 3350 } 3351 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3352 param.remove(String8("test_cmd_policy_sampleRate")); 3353 if (valueInt >= 0 && valueInt <= 96000) { 3354 int samplingRate = valueInt; 3355 if (target == "Manager") { 3356 mTestSamplingRate = samplingRate; 3357 } else if (mTestOutputs[mCurOutput] != 0) { 3358 AudioParameter outputParam = AudioParameter(); 3359 outputParam.addInt(String8("sampling_rate"), samplingRate); 3360 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3361 } 3362 } 3363 } 3364 3365 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3366 param.remove(String8("test_cmd_policy_reopen")); 3367 3368 mpClientInterface->closeOutput(mpClientInterface->closeOutput(mPrimaryOutput);); 3369 3370 audio_module_handle_t moduleHandle = mPrimaryOutput->getModuleHandle(); 3371 3372 removeOutput(mPrimaryOutput->mIoHandle); 3373 sp<SwAudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL, 3374 mpClientInterface); 3375 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3376 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3377 config.sample_rate = outputDesc->mSamplingRate; 3378 config.channel_mask = outputDesc->mChannelMask; 3379 config.format = outputDesc->mFormat; 3380 audio_io_handle_t handle; 3381 status_t status = mpClientInterface->openOutput(moduleHandle, 3382 &handle, 3383 &config, 3384 &outputDesc->mDevice, 3385 String8(""), 3386 &outputDesc->mLatency, 3387 outputDesc->mFlags); 3388 if (status != NO_ERROR) { 3389 ALOGE("Failed to reopen hardware output stream, " 3390 "samplingRate: %d, format %d, channels %d", 3391 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3392 } else { 3393 outputDesc->mSamplingRate = config.sample_rate; 3394 outputDesc->mChannelMask = config.channel_mask; 3395 outputDesc->mFormat = config.format; 3396 mPrimaryOutput = outputDesc; 3397 AudioParameter outputCmd = AudioParameter(); 3398 outputCmd.addInt(String8("set_id"), 0); 3399 mpClientInterface->setParameters(handle, outputCmd.toString()); 3400 addOutput(handle, outputDesc); 3401 } 3402 } 3403 3404 3405 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3406 } 3407 } 3408 return false; 3409} 3410 3411void AudioPolicyManager::exit() 3412{ 3413 { 3414 AutoMutex _l(mLock); 3415 requestExit(); 3416 mWaitWorkCV.signal(); 3417 } 3418 requestExitAndWait(); 3419} 3420 3421int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3422{ 3423 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3424 if (output == mTestOutputs[i]) return i; 3425 } 3426 return 0; 3427} 3428#endif //AUDIO_POLICY_TEST 3429 3430// --- 3431 3432void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<SwAudioOutputDescriptor> outputDesc) 3433{ 3434 outputDesc->setIoHandle(output); 3435 mOutputs.add(output, outputDesc); 3436 updateMono(output); // update mono status when adding to output list 3437 nextAudioPortGeneration(); 3438} 3439 3440void AudioPolicyManager::removeOutput(audio_io_handle_t output) 3441{ 3442 mOutputs.removeItem(output); 3443} 3444 3445void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3446{ 3447 inputDesc->setIoHandle(input); 3448 mInputs.add(input, inputDesc); 3449 nextAudioPortGeneration(); 3450} 3451 3452void AudioPolicyManager::findIoHandlesByAddress(sp<SwAudioOutputDescriptor> desc /*in*/, 3453 const audio_devices_t device /*in*/, 3454 const String8 address /*in*/, 3455 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3456 sp<DeviceDescriptor> devDesc = 3457 desc->mProfile->getSupportedDeviceByAddress(device, address); 3458 if (devDesc != 0) { 3459 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3460 desc->mIoHandle, address.string()); 3461 outputs.add(desc->mIoHandle); 3462 } 3463} 3464 3465status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3466 audio_policy_dev_state_t state, 3467 SortedVector<audio_io_handle_t>& outputs, 3468 const String8 address) 3469{ 3470 audio_devices_t device = devDesc->type(); 3471 sp<SwAudioOutputDescriptor> desc; 3472 3473 if (audio_device_is_digital(device)) { 3474 // erase all current sample rates, formats and channel masks 3475 devDesc->clearAudioProfiles(); 3476 } 3477 3478 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3479 // first list already open outputs that can be routed to this device 3480 for (size_t i = 0; i < mOutputs.size(); i++) { 3481 desc = mOutputs.valueAt(i); 3482 if (!desc->isDuplicated() && (desc->supportedDevices() & device)) { 3483 if (!device_distinguishes_on_address(device)) { 3484 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3485 outputs.add(mOutputs.keyAt(i)); 3486 } else { 3487 ALOGV(" checking address match due to device 0x%x", device); 3488 findIoHandlesByAddress(desc, device, address, outputs); 3489 } 3490 } 3491 } 3492 // then look for output profiles that can be routed to this device 3493 SortedVector< sp<IOProfile> > profiles; 3494 for (size_t i = 0; i < mHwModules.size(); i++) 3495 { 3496 if (mHwModules[i]->mHandle == 0) { 3497 continue; 3498 } 3499 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3500 { 3501 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3502 if (profile->supportDevice(device)) { 3503 if (!device_distinguishes_on_address(device) || 3504 profile->supportDeviceAddress(address)) { 3505 profiles.add(profile); 3506 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3507 } 3508 } 3509 } 3510 } 3511 3512 ALOGV(" found %zu profiles, %zu outputs", profiles.size(), outputs.size()); 3513 3514 if (profiles.isEmpty() && outputs.isEmpty()) { 3515 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3516 return BAD_VALUE; 3517 } 3518 3519 // open outputs for matching profiles if needed. Direct outputs are also opened to 3520 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3521 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3522 sp<IOProfile> profile = profiles[profile_index]; 3523 3524 // nothing to do if one output is already opened for this profile 3525 size_t j; 3526 for (j = 0; j < outputs.size(); j++) { 3527 desc = mOutputs.valueFor(outputs.itemAt(j)); 3528 if (!desc->isDuplicated() && desc->mProfile == profile) { 3529 // matching profile: save the sample rates, format and channel masks supported 3530 // by the profile in our device descriptor 3531 if (audio_device_is_digital(device)) { 3532 devDesc->importAudioPort(profile); 3533 } 3534 break; 3535 } 3536 } 3537 if (j != outputs.size()) { 3538 continue; 3539 } 3540 3541 ALOGV("opening output for device %08x with params %s profile %p", 3542 device, address.string(), profile.get()); 3543 desc = new SwAudioOutputDescriptor(profile, mpClientInterface); 3544 desc->mDevice = device; 3545 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3546 config.sample_rate = desc->mSamplingRate; 3547 config.channel_mask = desc->mChannelMask; 3548 config.format = desc->mFormat; 3549 config.offload_info.sample_rate = desc->mSamplingRate; 3550 config.offload_info.channel_mask = desc->mChannelMask; 3551 config.offload_info.format = desc->mFormat; 3552 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3553 status_t status = mpClientInterface->openOutput(profile->getModuleHandle(), 3554 &output, 3555 &config, 3556 &desc->mDevice, 3557 address, 3558 &desc->mLatency, 3559 desc->mFlags); 3560 if (status == NO_ERROR) { 3561 desc->mSamplingRate = config.sample_rate; 3562 desc->mChannelMask = config.channel_mask; 3563 desc->mFormat = config.format; 3564 3565 // Here is where the out_set_parameters() for card & device gets called 3566 if (!address.isEmpty()) { 3567 char *param = audio_device_address_to_parameter(device, address); 3568 mpClientInterface->setParameters(output, String8(param)); 3569 free(param); 3570 } 3571 updateAudioProfiles(output, profile->getAudioProfiles()); 3572 if (!profile->hasValidAudioProfile()) { 3573 ALOGW("checkOutputsForDevice() missing param"); 3574 mpClientInterface->closeOutput(output); 3575 output = AUDIO_IO_HANDLE_NONE; 3576 } else if (profile->hasDynamicAudioProfile()) { 3577 mpClientInterface->closeOutput(output); 3578 profile->pickAudioProfile(config.sample_rate, config.channel_mask, config.format); 3579 config.offload_info.sample_rate = config.sample_rate; 3580 config.offload_info.channel_mask = config.channel_mask; 3581 config.offload_info.format = config.format; 3582 status = mpClientInterface->openOutput(profile->getModuleHandle(), 3583 &output, 3584 &config, 3585 &desc->mDevice, 3586 address, 3587 &desc->mLatency, 3588 desc->mFlags); 3589 if (status == NO_ERROR) { 3590 desc->mSamplingRate = config.sample_rate; 3591 desc->mChannelMask = config.channel_mask; 3592 desc->mFormat = config.format; 3593 } else { 3594 output = AUDIO_IO_HANDLE_NONE; 3595 } 3596 } 3597 3598 if (output != AUDIO_IO_HANDLE_NONE) { 3599 addOutput(output, desc); 3600 if (device_distinguishes_on_address(device) && address != "0") { 3601 sp<AudioPolicyMix> policyMix; 3602 if (mPolicyMixes.getAudioPolicyMix(address, policyMix) != NO_ERROR) { 3603 ALOGE("checkOutputsForDevice() cannot find policy for address %s", 3604 address.string()); 3605 } 3606 policyMix->setOutput(desc); 3607 desc->mPolicyMix = policyMix->getMix(); 3608 3609 } else if (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 3610 hasPrimaryOutput()) { 3611 // no duplicated output for direct outputs and 3612 // outputs used by dynamic policy mixes 3613 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3614 3615 // set initial stream volume for device 3616 applyStreamVolumes(desc, device, 0, true); 3617 3618 //TODO: configure audio effect output stage here 3619 3620 // open a duplicating output thread for the new output and the primary output 3621 duplicatedOutput = 3622 mpClientInterface->openDuplicateOutput(output, 3623 mPrimaryOutput->mIoHandle); 3624 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3625 // add duplicated output descriptor 3626 sp<SwAudioOutputDescriptor> dupOutputDesc = 3627 new SwAudioOutputDescriptor(NULL, mpClientInterface); 3628 dupOutputDesc->mOutput1 = mPrimaryOutput; 3629 dupOutputDesc->mOutput2 = desc; 3630 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3631 dupOutputDesc->mFormat = desc->mFormat; 3632 dupOutputDesc->mChannelMask = desc->mChannelMask; 3633 dupOutputDesc->mLatency = desc->mLatency; 3634 addOutput(duplicatedOutput, dupOutputDesc); 3635 applyStreamVolumes(dupOutputDesc, device, 0, true); 3636 } else { 3637 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3638 mPrimaryOutput->mIoHandle, output); 3639 mpClientInterface->closeOutput(output); 3640 removeOutput(output); 3641 nextAudioPortGeneration(); 3642 output = AUDIO_IO_HANDLE_NONE; 3643 } 3644 } 3645 } 3646 } else { 3647 output = AUDIO_IO_HANDLE_NONE; 3648 } 3649 if (output == AUDIO_IO_HANDLE_NONE) { 3650 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3651 profiles.removeAt(profile_index); 3652 profile_index--; 3653 } else { 3654 outputs.add(output); 3655 // Load digital format info only for digital devices 3656 if (audio_device_is_digital(device)) { 3657 devDesc->importAudioPort(profile); 3658 } 3659 3660 if (device_distinguishes_on_address(device)) { 3661 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3662 device, address.string()); 3663 setOutputDevice(desc, device, true/*force*/, 0/*delay*/, 3664 NULL/*patch handle*/, address.string()); 3665 } 3666 ALOGV("checkOutputsForDevice(): adding output %d", output); 3667 } 3668 } 3669 3670 if (profiles.isEmpty()) { 3671 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3672 return BAD_VALUE; 3673 } 3674 } else { // Disconnect 3675 // check if one opened output is not needed any more after disconnecting one device 3676 for (size_t i = 0; i < mOutputs.size(); i++) { 3677 desc = mOutputs.valueAt(i); 3678 if (!desc->isDuplicated()) { 3679 // exact match on device 3680 if (device_distinguishes_on_address(device) && 3681 (desc->supportedDevices() == device)) { 3682 findIoHandlesByAddress(desc, device, address, outputs); 3683 } else if (!(desc->supportedDevices() & mAvailableOutputDevices.types())) { 3684 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3685 mOutputs.keyAt(i)); 3686 outputs.add(mOutputs.keyAt(i)); 3687 } 3688 } 3689 } 3690 // Clear any profiles associated with the disconnected device. 3691 for (size_t i = 0; i < mHwModules.size(); i++) 3692 { 3693 if (mHwModules[i]->mHandle == 0) { 3694 continue; 3695 } 3696 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3697 { 3698 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3699 if (profile->supportDevice(device)) { 3700 ALOGV("checkOutputsForDevice(): " 3701 "clearing direct output profile %zu on module %zu", j, i); 3702 profile->clearAudioProfiles(); 3703 } 3704 } 3705 } 3706 } 3707 return NO_ERROR; 3708} 3709 3710status_t AudioPolicyManager::checkInputsForDevice(const sp<DeviceDescriptor> devDesc, 3711 audio_policy_dev_state_t state, 3712 SortedVector<audio_io_handle_t>& inputs, 3713 const String8 address) 3714{ 3715 audio_devices_t device = devDesc->type(); 3716 sp<AudioInputDescriptor> desc; 3717 3718 if (audio_device_is_digital(device)) { 3719 // erase all current sample rates, formats and channel masks 3720 devDesc->clearAudioProfiles(); 3721 } 3722 3723 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3724 // first list already open inputs that can be routed to this device 3725 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3726 desc = mInputs.valueAt(input_index); 3727 if (desc->mProfile->supportDevice(device)) { 3728 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3729 inputs.add(mInputs.keyAt(input_index)); 3730 } 3731 } 3732 3733 // then look for input profiles that can be routed to this device 3734 SortedVector< sp<IOProfile> > profiles; 3735 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3736 { 3737 if (mHwModules[module_idx]->mHandle == 0) { 3738 continue; 3739 } 3740 for (size_t profile_index = 0; 3741 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3742 profile_index++) 3743 { 3744 sp<IOProfile> profile = mHwModules[module_idx]->mInputProfiles[profile_index]; 3745 3746 if (profile->supportDevice(device)) { 3747 if (!device_distinguishes_on_address(device) || 3748 profile->supportDeviceAddress(address)) { 3749 profiles.add(profile); 3750 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3751 profile_index, module_idx); 3752 } 3753 } 3754 } 3755 } 3756 3757 if (profiles.isEmpty() && inputs.isEmpty()) { 3758 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3759 return BAD_VALUE; 3760 } 3761 3762 // open inputs for matching profiles if needed. Direct inputs are also opened to 3763 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3764 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3765 3766 sp<IOProfile> profile = profiles[profile_index]; 3767 // nothing to do if one input is already opened for this profile 3768 size_t input_index; 3769 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3770 desc = mInputs.valueAt(input_index); 3771 if (desc->mProfile == profile) { 3772 if (audio_device_is_digital(device)) { 3773 devDesc->importAudioPort(profile); 3774 } 3775 break; 3776 } 3777 } 3778 if (input_index != mInputs.size()) { 3779 continue; 3780 } 3781 3782 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3783 desc = new AudioInputDescriptor(profile); 3784 desc->mDevice = device; 3785 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3786 config.sample_rate = desc->mSamplingRate; 3787 config.channel_mask = desc->mChannelMask; 3788 config.format = desc->mFormat; 3789 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3790 status_t status = mpClientInterface->openInput(profile->getModuleHandle(), 3791 &input, 3792 &config, 3793 &desc->mDevice, 3794 address, 3795 AUDIO_SOURCE_MIC, 3796 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3797 3798 if (status == NO_ERROR) { 3799 desc->mSamplingRate = config.sample_rate; 3800 desc->mChannelMask = config.channel_mask; 3801 desc->mFormat = config.format; 3802 3803 if (!address.isEmpty()) { 3804 char *param = audio_device_address_to_parameter(device, address); 3805 mpClientInterface->setParameters(input, String8(param)); 3806 free(param); 3807 } 3808 updateAudioProfiles(input, profile->getAudioProfiles()); 3809 if (!profile->hasValidAudioProfile()) { 3810 ALOGW("checkInputsForDevice() direct input missing param"); 3811 mpClientInterface->closeInput(input); 3812 input = AUDIO_IO_HANDLE_NONE; 3813 } 3814 3815 if (input != 0) { 3816 addInput(input, desc); 3817 } 3818 } // endif input != 0 3819 3820 if (input == AUDIO_IO_HANDLE_NONE) { 3821 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3822 profiles.removeAt(profile_index); 3823 profile_index--; 3824 } else { 3825 inputs.add(input); 3826 if (audio_device_is_digital(device)) { 3827 devDesc->importAudioPort(profile); 3828 } 3829 ALOGV("checkInputsForDevice(): adding input %d", input); 3830 } 3831 } // end scan profiles 3832 3833 if (profiles.isEmpty()) { 3834 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3835 return BAD_VALUE; 3836 } 3837 } else { 3838 // Disconnect 3839 // check if one opened input is not needed any more after disconnecting one device 3840 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3841 desc = mInputs.valueAt(input_index); 3842 if (!(desc->mProfile->supportDevice(mAvailableInputDevices.types()))) { 3843 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3844 mInputs.keyAt(input_index)); 3845 inputs.add(mInputs.keyAt(input_index)); 3846 } 3847 } 3848 // Clear any profiles associated with the disconnected device. 3849 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3850 if (mHwModules[module_index]->mHandle == 0) { 3851 continue; 3852 } 3853 for (size_t profile_index = 0; 3854 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3855 profile_index++) { 3856 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3857 if (profile->supportDevice(device)) { 3858 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3859 profile_index, module_index); 3860 profile->clearAudioProfiles(); 3861 } 3862 } 3863 } 3864 } // end disconnect 3865 3866 return NO_ERROR; 3867} 3868 3869 3870void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3871{ 3872 ALOGV("closeOutput(%d)", output); 3873 3874 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3875 if (outputDesc == NULL) { 3876 ALOGW("closeOutput() unknown output %d", output); 3877 return; 3878 } 3879 mPolicyMixes.closeOutput(outputDesc); 3880 3881 // look for duplicated outputs connected to the output being removed. 3882 for (size_t i = 0; i < mOutputs.size(); i++) { 3883 sp<SwAudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3884 if (dupOutputDesc->isDuplicated() && 3885 (dupOutputDesc->mOutput1 == outputDesc || 3886 dupOutputDesc->mOutput2 == outputDesc)) { 3887 sp<AudioOutputDescriptor> outputDesc2; 3888 if (dupOutputDesc->mOutput1 == outputDesc) { 3889 outputDesc2 = dupOutputDesc->mOutput2; 3890 } else { 3891 outputDesc2 = dupOutputDesc->mOutput1; 3892 } 3893 // As all active tracks on duplicated output will be deleted, 3894 // and as they were also referenced on the other output, the reference 3895 // count for their stream type must be adjusted accordingly on 3896 // the other output. 3897 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3898 int refCount = dupOutputDesc->mRefCount[j]; 3899 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3900 } 3901 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3902 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3903 3904 mpClientInterface->closeOutput(duplicatedOutput); 3905 removeOutput(duplicatedOutput); 3906 } 3907 } 3908 3909 nextAudioPortGeneration(); 3910 3911 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3912 if (index >= 0) { 3913 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3914 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3915 mAudioPatches.removeItemsAt(index); 3916 mpClientInterface->onAudioPatchListUpdate(); 3917 } 3918 3919 AudioParameter param; 3920 param.add(String8("closing"), String8("true")); 3921 mpClientInterface->setParameters(output, param.toString()); 3922 3923 mpClientInterface->closeOutput(output); 3924 removeOutput(output); 3925 mPreviousOutputs = mOutputs; 3926} 3927 3928void AudioPolicyManager::closeInput(audio_io_handle_t input) 3929{ 3930 ALOGV("closeInput(%d)", input); 3931 3932 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3933 if (inputDesc == NULL) { 3934 ALOGW("closeInput() unknown input %d", input); 3935 return; 3936 } 3937 3938 nextAudioPortGeneration(); 3939 3940 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3941 if (index >= 0) { 3942 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3943 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3944 mAudioPatches.removeItemsAt(index); 3945 mpClientInterface->onAudioPatchListUpdate(); 3946 } 3947 3948 mpClientInterface->closeInput(input); 3949 mInputs.removeItem(input); 3950} 3951 3952SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice( 3953 audio_devices_t device, 3954 SwAudioOutputCollection openOutputs) 3955{ 3956 SortedVector<audio_io_handle_t> outputs; 3957 3958 ALOGVV("getOutputsForDevice() device %04x", device); 3959 for (size_t i = 0; i < openOutputs.size(); i++) { 3960 ALOGVV("output %d isDuplicated=%d device=%04x", 3961 i, openOutputs.valueAt(i)->isDuplicated(), 3962 openOutputs.valueAt(i)->supportedDevices()); 3963 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3964 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3965 outputs.add(openOutputs.keyAt(i)); 3966 } 3967 } 3968 return outputs; 3969} 3970 3971bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3972 SortedVector<audio_io_handle_t>& outputs2) 3973{ 3974 if (outputs1.size() != outputs2.size()) { 3975 return false; 3976 } 3977 for (size_t i = 0; i < outputs1.size(); i++) { 3978 if (outputs1[i] != outputs2[i]) { 3979 return false; 3980 } 3981 } 3982 return true; 3983} 3984 3985void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3986{ 3987 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3988 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3989 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3990 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3991 3992 // also take into account external policy-related changes: add all outputs which are 3993 // associated with policies in the "before" and "after" output vectors 3994 ALOGVV("checkOutputForStrategy(): policy related outputs"); 3995 for (size_t i = 0 ; i < mPreviousOutputs.size() ; i++) { 3996 const sp<SwAudioOutputDescriptor> desc = mPreviousOutputs.valueAt(i); 3997 if (desc != 0 && desc->mPolicyMix != NULL) { 3998 srcOutputs.add(desc->mIoHandle); 3999 ALOGVV(" previous outputs: adding %d", desc->mIoHandle); 4000 } 4001 } 4002 for (size_t i = 0 ; i < mOutputs.size() ; i++) { 4003 const sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 4004 if (desc != 0 && desc->mPolicyMix != NULL) { 4005 dstOutputs.add(desc->mIoHandle); 4006 ALOGVV(" new outputs: adding %d", desc->mIoHandle); 4007 } 4008 } 4009 4010 if (!vectorsEqual(srcOutputs,dstOutputs)) { 4011 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 4012 strategy, srcOutputs[0], dstOutputs[0]); 4013 // mute strategy while moving tracks from one output to another 4014 for (size_t i = 0; i < srcOutputs.size(); i++) { 4015 sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 4016 if (isStrategyActive(desc, strategy)) { 4017 setStrategyMute(strategy, true, desc); 4018 setStrategyMute(strategy, false, desc, MUTE_TIME_MS, newDevice); 4019 } 4020 sp<AudioSourceDescriptor> source = 4021 getSourceForStrategyOnOutput(srcOutputs[i], strategy); 4022 if (source != 0){ 4023 connectAudioSource(source); 4024 } 4025 } 4026 4027 // Move effects associated to this strategy from previous output to new output 4028 if (strategy == STRATEGY_MEDIA) { 4029 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 4030 SortedVector<audio_io_handle_t> moved; 4031 for (size_t i = 0; i < mEffects.size(); i++) { 4032 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 4033 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 4034 effectDesc->mIo != fxOutput) { 4035 if (moved.indexOf(effectDesc->mIo) < 0) { 4036 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 4037 mEffects.keyAt(i), fxOutput); 4038 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 4039 fxOutput); 4040 moved.add(effectDesc->mIo); 4041 } 4042 effectDesc->mIo = fxOutput; 4043 } 4044 } 4045 } 4046 // Move tracks associated to this strategy from previous output to new output 4047 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4048 if (i == AUDIO_STREAM_PATCH) { 4049 continue; 4050 } 4051 if (getStrategy((audio_stream_type_t)i) == strategy) { 4052 mpClientInterface->invalidateStream((audio_stream_type_t)i); 4053 } 4054 } 4055 } 4056} 4057 4058void AudioPolicyManager::checkOutputForAllStrategies() 4059{ 4060 if (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4061 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4062 checkOutputForStrategy(STRATEGY_PHONE); 4063 if (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4064 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4065 checkOutputForStrategy(STRATEGY_SONIFICATION); 4066 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4067 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 4068 checkOutputForStrategy(STRATEGY_MEDIA); 4069 checkOutputForStrategy(STRATEGY_DTMF); 4070 checkOutputForStrategy(STRATEGY_REROUTING); 4071} 4072 4073void AudioPolicyManager::checkA2dpSuspend() 4074{ 4075 audio_io_handle_t a2dpOutput = mOutputs.getA2dpOutput(); 4076 if (a2dpOutput == 0) { 4077 mA2dpSuspended = false; 4078 return; 4079 } 4080 4081 bool isScoConnected = 4082 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 4083 ~AUDIO_DEVICE_BIT_IN) != 0) || 4084 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 4085 // suspend A2DP output if: 4086 // (NOT already suspended) && 4087 // ((SCO device is connected && 4088 // (forced usage for communication || for record is SCO))) || 4089 // (phone state is ringing || in call) 4090 // 4091 // restore A2DP output if: 4092 // (Already suspended) && 4093 // ((SCO device is NOT connected || 4094 // (forced usage NOT for communication && NOT for record is SCO))) && 4095 // (phone state is NOT ringing && NOT in call) 4096 // 4097 if (mA2dpSuspended) { 4098 if ((!isScoConnected || 4099 ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) != AUDIO_POLICY_FORCE_BT_SCO) && 4100 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) != AUDIO_POLICY_FORCE_BT_SCO))) && 4101 ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) && 4102 (mEngine->getPhoneState() != AUDIO_MODE_RINGTONE))) { 4103 4104 mpClientInterface->restoreOutput(a2dpOutput); 4105 mA2dpSuspended = false; 4106 } 4107 } else { 4108 if ((isScoConnected && 4109 ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) == AUDIO_POLICY_FORCE_BT_SCO) || 4110 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) == AUDIO_POLICY_FORCE_BT_SCO))) || 4111 ((mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) || 4112 (mEngine->getPhoneState() == AUDIO_MODE_RINGTONE))) { 4113 4114 mpClientInterface->suspendOutput(a2dpOutput); 4115 mA2dpSuspended = true; 4116 } 4117 } 4118} 4119 4120audio_devices_t AudioPolicyManager::getNewOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, 4121 bool fromCache) 4122{ 4123 audio_devices_t device = AUDIO_DEVICE_NONE; 4124 4125 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4126 if (index >= 0) { 4127 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4128 if (patchDesc->mUid != mUidCached) { 4129 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 4130 outputDesc->device(), outputDesc->mPatchHandle); 4131 return outputDesc->device(); 4132 } 4133 } 4134 4135 // check the following by order of priority to request a routing change if necessary: 4136 // 1: the strategy enforced audible is active and enforced on the output: 4137 // use device for strategy enforced audible 4138 // 2: we are in call or the strategy phone is active on the output: 4139 // use device for strategy phone 4140 // 3: the strategy for enforced audible is active but not enforced on the output: 4141 // use the device for strategy enforced audible 4142 // 4: the strategy accessibility is active on the output: 4143 // use device for strategy accessibility 4144 // 5: the strategy sonification is active on the output: 4145 // use device for strategy sonification 4146 // 6: the strategy "respectful" sonification is active on the output: 4147 // use device for strategy "respectful" sonification 4148 // 7: the strategy media is active on the output: 4149 // use device for strategy media 4150 // 8: the strategy DTMF is active on the output: 4151 // use device for strategy DTMF 4152 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 4153 // use device for strategy t-t-s 4154 if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE) && 4155 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 4156 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4157 } else if (isInCall() || 4158 isStrategyActive(outputDesc, STRATEGY_PHONE)) { 4159 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 4160 } else if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE)) { 4161 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4162 } else if (isStrategyActive(outputDesc, STRATEGY_ACCESSIBILITY)) { 4163 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 4164 } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION)) { 4165 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 4166 } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION_RESPECTFUL)) { 4167 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 4168 } else if (isStrategyActive(outputDesc, STRATEGY_MEDIA)) { 4169 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 4170 } else if (isStrategyActive(outputDesc, STRATEGY_DTMF)) { 4171 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 4172 } else if (isStrategyActive(outputDesc, STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 4173 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 4174 } else if (isStrategyActive(outputDesc, STRATEGY_REROUTING)) { 4175 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 4176 } 4177 4178 ALOGV("getNewOutputDevice() selected device %x", device); 4179 return device; 4180} 4181 4182audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 4183{ 4184 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4185 4186 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4187 if (index >= 0) { 4188 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4189 if (patchDesc->mUid != mUidCached) { 4190 ALOGV("getNewInputDevice() device %08x forced by patch %d", 4191 inputDesc->mDevice, inputDesc->mPatchHandle); 4192 return inputDesc->mDevice; 4193 } 4194 } 4195 4196 audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->inputSource()); 4197 4198 return device; 4199} 4200 4201uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 4202 return (uint32_t)getStrategy(stream); 4203} 4204 4205audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 4206 // By checking the range of stream before calling getStrategy, we avoid 4207 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 4208 // and then return STRATEGY_MEDIA, but we want to return the empty set. 4209 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 4210 return AUDIO_DEVICE_NONE; 4211 } 4212 audio_devices_t devices; 4213 routing_strategy strategy = getStrategy(stream); 4214 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 4215 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 4216 for (size_t i = 0; i < outputs.size(); i++) { 4217 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 4218 if (isStrategyActive(outputDesc, strategy)) { 4219 devices = outputDesc->device(); 4220 break; 4221 } 4222 } 4223 4224 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 4225 and doesn't really need to.*/ 4226 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 4227 devices |= AUDIO_DEVICE_OUT_SPEAKER; 4228 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4229 } 4230 4231 return devices; 4232} 4233 4234routing_strategy AudioPolicyManager::getStrategy(audio_stream_type_t stream) const 4235{ 4236 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 4237 return mEngine->getStrategyForStream(stream); 4238} 4239 4240uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 4241 // flags to strategy mapping 4242 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4243 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4244 } 4245 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4246 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 4247 } 4248 // usage to strategy mapping 4249 return static_cast<uint32_t>(mEngine->getStrategyForUsage(attr->usage)); 4250} 4251 4252void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4253 switch(stream) { 4254 case AUDIO_STREAM_MUSIC: 4255 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4256 updateDevicesAndOutputs(); 4257 break; 4258 default: 4259 break; 4260 } 4261} 4262 4263uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4264 4265 // skip beacon mute management if a dedicated TTS output is available 4266 if (mTtsOutputAvailable) { 4267 return 0; 4268 } 4269 4270 switch(event) { 4271 case STARTING_OUTPUT: 4272 mBeaconMuteRefCount++; 4273 break; 4274 case STOPPING_OUTPUT: 4275 if (mBeaconMuteRefCount > 0) { 4276 mBeaconMuteRefCount--; 4277 } 4278 break; 4279 case STARTING_BEACON: 4280 mBeaconPlayingRefCount++; 4281 break; 4282 case STOPPING_BEACON: 4283 if (mBeaconPlayingRefCount > 0) { 4284 mBeaconPlayingRefCount--; 4285 } 4286 break; 4287 } 4288 4289 if (mBeaconMuteRefCount > 0) { 4290 // any playback causes beacon to be muted 4291 return setBeaconMute(true); 4292 } else { 4293 // no other playback: unmute when beacon starts playing, mute when it stops 4294 return setBeaconMute(mBeaconPlayingRefCount == 0); 4295 } 4296} 4297 4298uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4299 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4300 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4301 // keep track of muted state to avoid repeating mute/unmute operations 4302 if (mBeaconMuted != mute) { 4303 // mute/unmute AUDIO_STREAM_TTS on all outputs 4304 ALOGV("\t muting %d", mute); 4305 uint32_t maxLatency = 0; 4306 for (size_t i = 0; i < mOutputs.size(); i++) { 4307 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 4308 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4309 desc, 4310 0 /*delay*/, AUDIO_DEVICE_NONE); 4311 const uint32_t latency = desc->latency() * 2; 4312 if (latency > maxLatency) { 4313 maxLatency = latency; 4314 } 4315 } 4316 mBeaconMuted = mute; 4317 return maxLatency; 4318 } 4319 return 0; 4320} 4321 4322audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4323 bool fromCache) 4324{ 4325 // Routing 4326 // see if we have an explicit route 4327 // scan the whole RouteMap, for each entry, convert the stream type to a strategy 4328 // (getStrategy(stream)). 4329 // if the strategy from the stream type in the RouteMap is the same as the argument above, 4330 // and activity count is non-zero 4331 // the device = the device from the descriptor in the RouteMap, and exit. 4332 for (size_t routeIndex = 0; routeIndex < mOutputRoutes.size(); routeIndex++) { 4333 sp<SessionRoute> route = mOutputRoutes.valueAt(routeIndex); 4334 routing_strategy strat = getStrategy(route->mStreamType); 4335 // Special case for accessibility strategy which must follow any strategy it is 4336 // currently remapped to 4337 bool strategyMatch = (strat == strategy) || 4338 ((strategy == STRATEGY_ACCESSIBILITY) && 4339 ((mEngine->getStrategyForUsage( 4340 AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY) == strat) || 4341 (strat == STRATEGY_MEDIA))); 4342 if (strategyMatch && route->isActive()) { 4343 return route->mDeviceDescriptor->type(); 4344 } 4345 } 4346 4347 if (fromCache) { 4348 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4349 strategy, mDeviceForStrategy[strategy]); 4350 return mDeviceForStrategy[strategy]; 4351 } 4352 return mEngine->getDeviceForStrategy(strategy); 4353} 4354 4355void AudioPolicyManager::updateDevicesAndOutputs() 4356{ 4357 for (int i = 0; i < NUM_STRATEGIES; i++) { 4358 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4359 } 4360 mPreviousOutputs = mOutputs; 4361} 4362 4363uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4364 audio_devices_t prevDevice, 4365 uint32_t delayMs) 4366{ 4367 // mute/unmute strategies using an incompatible device combination 4368 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4369 // if unmuting, unmute only after the specified delay 4370 if (outputDesc->isDuplicated()) { 4371 return 0; 4372 } 4373 4374 uint32_t muteWaitMs = 0; 4375 audio_devices_t device = outputDesc->device(); 4376 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4377 4378 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4379 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4380 curDevice = curDevice & outputDesc->supportedDevices(); 4381 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4382 bool doMute = false; 4383 4384 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4385 doMute = true; 4386 outputDesc->mStrategyMutedByDevice[i] = true; 4387 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4388 doMute = true; 4389 outputDesc->mStrategyMutedByDevice[i] = false; 4390 } 4391 if (doMute) { 4392 for (size_t j = 0; j < mOutputs.size(); j++) { 4393 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4394 // skip output if it does not share any device with current output 4395 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4396 == AUDIO_DEVICE_NONE) { 4397 continue; 4398 } 4399 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x)", 4400 mute ? "muting" : "unmuting", i, curDevice); 4401 setStrategyMute((routing_strategy)i, mute, desc, mute ? 0 : delayMs); 4402 if (isStrategyActive(desc, (routing_strategy)i)) { 4403 if (mute) { 4404 // FIXME: should not need to double latency if volume could be applied 4405 // immediately by the audioflinger mixer. We must account for the delay 4406 // between now and the next time the audioflinger thread for this output 4407 // will process a buffer (which corresponds to one buffer size, 4408 // usually 1/2 or 1/4 of the latency). 4409 if (muteWaitMs < desc->latency() * 2) { 4410 muteWaitMs = desc->latency() * 2; 4411 } 4412 } 4413 } 4414 } 4415 } 4416 } 4417 4418 // temporary mute output if device selection changes to avoid volume bursts due to 4419 // different per device volumes 4420 if (outputDesc->isActive() && (device != prevDevice)) { 4421 if (muteWaitMs < outputDesc->latency() * 2) { 4422 muteWaitMs = outputDesc->latency() * 2; 4423 } 4424 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4425 if (isStrategyActive(outputDesc, (routing_strategy)i)) { 4426 setStrategyMute((routing_strategy)i, true, outputDesc); 4427 // do tempMute unmute after twice the mute wait time 4428 setStrategyMute((routing_strategy)i, false, outputDesc, 4429 muteWaitMs *2, device); 4430 } 4431 } 4432 } 4433 4434 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4435 if (muteWaitMs > delayMs) { 4436 muteWaitMs -= delayMs; 4437 usleep(muteWaitMs * 1000); 4438 return muteWaitMs; 4439 } 4440 return 0; 4441} 4442 4443uint32_t AudioPolicyManager::setOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, 4444 audio_devices_t device, 4445 bool force, 4446 int delayMs, 4447 audio_patch_handle_t *patchHandle, 4448 const char* address) 4449{ 4450 ALOGV("setOutputDevice() device %04x delayMs %d", device, delayMs); 4451 AudioParameter param; 4452 uint32_t muteWaitMs; 4453 4454 if (outputDesc->isDuplicated()) { 4455 muteWaitMs = setOutputDevice(outputDesc->subOutput1(), device, force, delayMs); 4456 muteWaitMs += setOutputDevice(outputDesc->subOutput2(), device, force, delayMs); 4457 return muteWaitMs; 4458 } 4459 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4460 // output profile 4461 if ((device != AUDIO_DEVICE_NONE) && 4462 ((device & outputDesc->supportedDevices()) == 0)) { 4463 return 0; 4464 } 4465 4466 // filter devices according to output selected 4467 device = (audio_devices_t)(device & outputDesc->supportedDevices()); 4468 4469 audio_devices_t prevDevice = outputDesc->mDevice; 4470 4471 ALOGV("setOutputDevice() prevDevice 0x%04x", prevDevice); 4472 4473 if (device != AUDIO_DEVICE_NONE) { 4474 outputDesc->mDevice = device; 4475 } 4476 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4477 4478 // Do not change the routing if: 4479 // the requested device is AUDIO_DEVICE_NONE 4480 // OR the requested device is the same as current device 4481 // AND force is not specified 4482 // AND the output is connected by a valid audio patch. 4483 // Doing this check here allows the caller to call setOutputDevice() without conditions 4484 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && 4485 !force && 4486 outputDesc->mPatchHandle != 0) { 4487 ALOGV("setOutputDevice() setting same device 0x%04x or null device", device); 4488 return muteWaitMs; 4489 } 4490 4491 ALOGV("setOutputDevice() changing device"); 4492 4493 // do the routing 4494 if (device == AUDIO_DEVICE_NONE) { 4495 resetOutputDevice(outputDesc, delayMs, NULL); 4496 } else { 4497 DeviceVector deviceList = (address == NULL) ? 4498 mAvailableOutputDevices.getDevicesFromType(device) 4499 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4500 if (!deviceList.isEmpty()) { 4501 struct audio_patch patch; 4502 outputDesc->toAudioPortConfig(&patch.sources[0]); 4503 patch.num_sources = 1; 4504 patch.num_sinks = 0; 4505 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4506 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4507 patch.num_sinks++; 4508 } 4509 ssize_t index; 4510 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4511 index = mAudioPatches.indexOfKey(*patchHandle); 4512 } else { 4513 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4514 } 4515 sp< AudioPatch> patchDesc; 4516 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4517 if (index >= 0) { 4518 patchDesc = mAudioPatches.valueAt(index); 4519 afPatchHandle = patchDesc->mAfPatchHandle; 4520 } 4521 4522 status_t status = mpClientInterface->createAudioPatch(&patch, 4523 &afPatchHandle, 4524 delayMs); 4525 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4526 "num_sources %d num_sinks %d", 4527 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4528 if (status == NO_ERROR) { 4529 if (index < 0) { 4530 patchDesc = new AudioPatch(&patch, mUidCached); 4531 addAudioPatch(patchDesc->mHandle, patchDesc); 4532 } else { 4533 patchDesc->mPatch = patch; 4534 } 4535 patchDesc->mAfPatchHandle = afPatchHandle; 4536 if (patchHandle) { 4537 *patchHandle = patchDesc->mHandle; 4538 } 4539 outputDesc->mPatchHandle = patchDesc->mHandle; 4540 nextAudioPortGeneration(); 4541 mpClientInterface->onAudioPatchListUpdate(); 4542 } 4543 } 4544 4545 // inform all input as well 4546 for (size_t i = 0; i < mInputs.size(); i++) { 4547 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4548 if (!is_virtual_input_device(inputDescriptor->mDevice)) { 4549 AudioParameter inputCmd = AudioParameter(); 4550 ALOGV("%s: inform input %d of device:%d", __func__, 4551 inputDescriptor->mIoHandle, device); 4552 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4553 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4554 inputCmd.toString(), 4555 delayMs); 4556 } 4557 } 4558 } 4559 4560 // update stream volumes according to new device 4561 applyStreamVolumes(outputDesc, device, delayMs); 4562 4563 return muteWaitMs; 4564} 4565 4566status_t AudioPolicyManager::resetOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, 4567 int delayMs, 4568 audio_patch_handle_t *patchHandle) 4569{ 4570 ssize_t index; 4571 if (patchHandle) { 4572 index = mAudioPatches.indexOfKey(*patchHandle); 4573 } else { 4574 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4575 } 4576 if (index < 0) { 4577 return INVALID_OPERATION; 4578 } 4579 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4580 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4581 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4582 outputDesc->mPatchHandle = 0; 4583 removeAudioPatch(patchDesc->mHandle); 4584 nextAudioPortGeneration(); 4585 mpClientInterface->onAudioPatchListUpdate(); 4586 return status; 4587} 4588 4589status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4590 audio_devices_t device, 4591 bool force, 4592 audio_patch_handle_t *patchHandle) 4593{ 4594 status_t status = NO_ERROR; 4595 4596 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4597 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4598 inputDesc->mDevice = device; 4599 4600 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4601 if (!deviceList.isEmpty()) { 4602 struct audio_patch patch; 4603 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4604 // AUDIO_SOURCE_HOTWORD is for internal use only: 4605 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4606 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4607 !inputDesc->isSoundTrigger()) { 4608 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4609 } 4610 patch.num_sinks = 1; 4611 //only one input device for now 4612 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4613 patch.num_sources = 1; 4614 ssize_t index; 4615 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4616 index = mAudioPatches.indexOfKey(*patchHandle); 4617 } else { 4618 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4619 } 4620 sp< AudioPatch> patchDesc; 4621 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4622 if (index >= 0) { 4623 patchDesc = mAudioPatches.valueAt(index); 4624 afPatchHandle = patchDesc->mAfPatchHandle; 4625 } 4626 4627 status_t status = mpClientInterface->createAudioPatch(&patch, 4628 &afPatchHandle, 4629 0); 4630 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4631 status, afPatchHandle); 4632 if (status == NO_ERROR) { 4633 if (index < 0) { 4634 patchDesc = new AudioPatch(&patch, mUidCached); 4635 addAudioPatch(patchDesc->mHandle, patchDesc); 4636 } else { 4637 patchDesc->mPatch = patch; 4638 } 4639 patchDesc->mAfPatchHandle = afPatchHandle; 4640 if (patchHandle) { 4641 *patchHandle = patchDesc->mHandle; 4642 } 4643 inputDesc->mPatchHandle = patchDesc->mHandle; 4644 nextAudioPortGeneration(); 4645 mpClientInterface->onAudioPatchListUpdate(); 4646 } 4647 } 4648 } 4649 return status; 4650} 4651 4652status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4653 audio_patch_handle_t *patchHandle) 4654{ 4655 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4656 ssize_t index; 4657 if (patchHandle) { 4658 index = mAudioPatches.indexOfKey(*patchHandle); 4659 } else { 4660 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4661 } 4662 if (index < 0) { 4663 return INVALID_OPERATION; 4664 } 4665 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4666 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4667 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4668 inputDesc->mPatchHandle = 0; 4669 removeAudioPatch(patchDesc->mHandle); 4670 nextAudioPortGeneration(); 4671 mpClientInterface->onAudioPatchListUpdate(); 4672 return status; 4673} 4674 4675sp<IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4676 String8 address, 4677 uint32_t& samplingRate, 4678 audio_format_t& format, 4679 audio_channel_mask_t& channelMask, 4680 audio_input_flags_t flags) 4681{ 4682 // Choose an input profile based on the requested capture parameters: select the first available 4683 // profile supporting all requested parameters. 4684 // 4685 // TODO: perhaps isCompatibleProfile should return a "matching" score so we can return 4686 // the best matching profile, not the first one. 4687 4688 for (size_t i = 0; i < mHwModules.size(); i++) 4689 { 4690 if (mHwModules[i]->mHandle == 0) { 4691 continue; 4692 } 4693 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4694 { 4695 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4696 // profile->log(); 4697 if (profile->isCompatibleProfile(device, address, samplingRate, 4698 &samplingRate /*updatedSamplingRate*/, 4699 format, 4700 &format /*updatedFormat*/, 4701 channelMask, 4702 &channelMask /*updatedChannelMask*/, 4703 (audio_output_flags_t) flags)) { 4704 4705 return profile; 4706 } 4707 } 4708 } 4709 return NULL; 4710} 4711 4712 4713audio_devices_t AudioPolicyManager::getDeviceAndMixForInputSource(audio_source_t inputSource, 4714 AudioMix **policyMix) 4715{ 4716 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 4717 audio_devices_t selectedDeviceFromMix = 4718 mPolicyMixes.getDeviceAndMixForInputSource(inputSource, availableDeviceTypes, policyMix); 4719 4720 if (selectedDeviceFromMix != AUDIO_DEVICE_NONE) { 4721 return selectedDeviceFromMix; 4722 } 4723 return getDeviceForInputSource(inputSource); 4724} 4725 4726audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4727{ 4728 for (size_t routeIndex = 0; routeIndex < mInputRoutes.size(); routeIndex++) { 4729 sp<SessionRoute> route = mInputRoutes.valueAt(routeIndex); 4730 if (inputSource == route->mSource && route->isActive()) { 4731 return route->mDeviceDescriptor->type(); 4732 } 4733 } 4734 4735 return mEngine->getDeviceForInputSource(inputSource); 4736} 4737 4738float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4739 int index, 4740 audio_devices_t device) 4741{ 4742 float volumeDb = mVolumeCurves->volIndexToDb(stream, Volume::getDeviceCategory(device), index); 4743 // if a headset is connected, apply the following rules to ring tones and notifications 4744 // to avoid sound level bursts in user's ears: 4745 // - always attenuate ring tones and notifications volume by 6dB 4746 // - if music is playing, always limit the volume to current music volume, 4747 // with a minimum threshold at -36dB so that notification is always perceived. 4748 const routing_strategy stream_strategy = getStrategy(stream); 4749 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4750 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4751 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4752 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4753 ((stream_strategy == STRATEGY_SONIFICATION) 4754 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4755 || (stream == AUDIO_STREAM_SYSTEM) 4756 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4757 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_NONE))) && 4758 mVolumeCurves->canBeMuted(stream)) { 4759 volumeDb += SONIFICATION_HEADSET_VOLUME_FACTOR_DB; 4760 // when the phone is ringing we must consider that music could have been paused just before 4761 // by the music application and behave as if music was active if the last music track was 4762 // just stopped 4763 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4764 mLimitRingtoneVolume) { 4765 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4766 float musicVolDB = computeVolume(AUDIO_STREAM_MUSIC, 4767 mVolumeCurves->getVolumeIndex(AUDIO_STREAM_MUSIC, 4768 musicDevice), 4769 musicDevice); 4770 float minVolDB = (musicVolDB > SONIFICATION_HEADSET_VOLUME_MIN_DB) ? 4771 musicVolDB : SONIFICATION_HEADSET_VOLUME_MIN_DB; 4772 if (volumeDb > minVolDB) { 4773 volumeDb = minVolDB; 4774 ALOGV("computeVolume limiting volume to %f musicVol %f", minVolDB, musicVolDB); 4775 } 4776 } 4777 } 4778 4779 return volumeDb; 4780} 4781 4782status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4783 int index, 4784 const sp<AudioOutputDescriptor>& outputDesc, 4785 audio_devices_t device, 4786 int delayMs, 4787 bool force) 4788{ 4789 // do not change actual stream volume if the stream is muted 4790 if (outputDesc->mMuteCount[stream] != 0) { 4791 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4792 stream, outputDesc->mMuteCount[stream]); 4793 return NO_ERROR; 4794 } 4795 audio_policy_forced_cfg_t forceUseForComm = 4796 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION); 4797 // do not change in call volume if bluetooth is connected and vice versa 4798 if ((stream == AUDIO_STREAM_VOICE_CALL && forceUseForComm == AUDIO_POLICY_FORCE_BT_SCO) || 4799 (stream == AUDIO_STREAM_BLUETOOTH_SCO && forceUseForComm != AUDIO_POLICY_FORCE_BT_SCO)) { 4800 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4801 stream, forceUseForComm); 4802 return INVALID_OPERATION; 4803 } 4804 4805 if (device == AUDIO_DEVICE_NONE) { 4806 device = outputDesc->device(); 4807 } 4808 4809 float volumeDb = computeVolume(stream, index, device); 4810 if (outputDesc->isFixedVolume(device)) { 4811 volumeDb = 0.0f; 4812 } 4813 4814 outputDesc->setVolume(volumeDb, stream, device, delayMs, force); 4815 4816 if (stream == AUDIO_STREAM_VOICE_CALL || 4817 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4818 float voiceVolume; 4819 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4820 if (stream == AUDIO_STREAM_VOICE_CALL) { 4821 voiceVolume = (float)index/(float)mVolumeCurves->getVolumeIndexMax(stream); 4822 } else { 4823 voiceVolume = 1.0; 4824 } 4825 4826 if (voiceVolume != mLastVoiceVolume && outputDesc == mPrimaryOutput) { 4827 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4828 mLastVoiceVolume = voiceVolume; 4829 } 4830 } 4831 4832 return NO_ERROR; 4833} 4834 4835void AudioPolicyManager::applyStreamVolumes(const sp<AudioOutputDescriptor>& outputDesc, 4836 audio_devices_t device, 4837 int delayMs, 4838 bool force) 4839{ 4840 ALOGVV("applyStreamVolumes() for device %08x", device); 4841 4842 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4843 if (stream == AUDIO_STREAM_PATCH) { 4844 continue; 4845 } 4846 checkAndSetVolume((audio_stream_type_t)stream, 4847 mVolumeCurves->getVolumeIndex((audio_stream_type_t)stream, device), 4848 outputDesc, 4849 device, 4850 delayMs, 4851 force); 4852 } 4853} 4854 4855void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 4856 bool on, 4857 const sp<AudioOutputDescriptor>& outputDesc, 4858 int delayMs, 4859 audio_devices_t device) 4860{ 4861 ALOGVV("setStrategyMute() strategy %d, mute %d, output ID %d", 4862 strategy, on, outputDesc->getId()); 4863 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4864 if (stream == AUDIO_STREAM_PATCH) { 4865 continue; 4866 } 4867 if (getStrategy((audio_stream_type_t)stream) == strategy) { 4868 setStreamMute((audio_stream_type_t)stream, on, outputDesc, delayMs, device); 4869 } 4870 } 4871} 4872 4873void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 4874 bool on, 4875 const sp<AudioOutputDescriptor>& outputDesc, 4876 int delayMs, 4877 audio_devices_t device) 4878{ 4879 if (device == AUDIO_DEVICE_NONE) { 4880 device = outputDesc->device(); 4881 } 4882 4883 ALOGVV("setStreamMute() stream %d, mute %d, mMuteCount %d device %04x", 4884 stream, on, outputDesc->mMuteCount[stream], device); 4885 4886 if (on) { 4887 if (outputDesc->mMuteCount[stream] == 0) { 4888 if (mVolumeCurves->canBeMuted(stream) && 4889 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 4890 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_NONE))) { 4891 checkAndSetVolume(stream, 0, outputDesc, device, delayMs); 4892 } 4893 } 4894 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 4895 outputDesc->mMuteCount[stream]++; 4896 } else { 4897 if (outputDesc->mMuteCount[stream] == 0) { 4898 ALOGV("setStreamMute() unmuting non muted stream!"); 4899 return; 4900 } 4901 if (--outputDesc->mMuteCount[stream] == 0) { 4902 checkAndSetVolume(stream, 4903 mVolumeCurves->getVolumeIndex(stream, device), 4904 outputDesc, 4905 device, 4906 delayMs); 4907 } 4908 } 4909} 4910 4911void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 4912 bool starting, bool stateChange) 4913{ 4914 if(!hasPrimaryOutput()) { 4915 return; 4916 } 4917 4918 // if the stream pertains to sonification strategy and we are in call we must 4919 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 4920 // in the device used for phone strategy and play the tone if the selected device does not 4921 // interfere with the device used for phone strategy 4922 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 4923 // many times as there are active tracks on the output 4924 const routing_strategy stream_strategy = getStrategy(stream); 4925 if ((stream_strategy == STRATEGY_SONIFICATION) || 4926 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 4927 sp<SwAudioOutputDescriptor> outputDesc = mPrimaryOutput; 4928 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 4929 stream, starting, outputDesc->mDevice, stateChange); 4930 if (outputDesc->mRefCount[stream]) { 4931 int muteCount = 1; 4932 if (stateChange) { 4933 muteCount = outputDesc->mRefCount[stream]; 4934 } 4935 if (audio_is_low_visibility(stream)) { 4936 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 4937 for (int i = 0; i < muteCount; i++) { 4938 setStreamMute(stream, starting, mPrimaryOutput); 4939 } 4940 } else { 4941 ALOGV("handleIncallSonification() high visibility"); 4942 if (outputDesc->device() & 4943 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 4944 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 4945 for (int i = 0; i < muteCount; i++) { 4946 setStreamMute(stream, starting, mPrimaryOutput); 4947 } 4948 } 4949 if (starting) { 4950 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 4951 AUDIO_STREAM_VOICE_CALL); 4952 } else { 4953 mpClientInterface->stopTone(); 4954 } 4955 } 4956 } 4957 } 4958} 4959 4960audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 4961{ 4962 // flags to stream type mapping 4963 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4964 return AUDIO_STREAM_ENFORCED_AUDIBLE; 4965 } 4966 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 4967 return AUDIO_STREAM_BLUETOOTH_SCO; 4968 } 4969 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4970 return AUDIO_STREAM_TTS; 4971 } 4972 4973 // usage to stream type mapping 4974 switch (attr->usage) { 4975 case AUDIO_USAGE_MEDIA: 4976 case AUDIO_USAGE_GAME: 4977 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4978 return AUDIO_STREAM_MUSIC; 4979 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4980 if (isStreamActive(AUDIO_STREAM_ALARM)) { 4981 return AUDIO_STREAM_ALARM; 4982 } 4983 if (isStreamActive(AUDIO_STREAM_RING)) { 4984 return AUDIO_STREAM_RING; 4985 } 4986 if (isInCall()) { 4987 return AUDIO_STREAM_VOICE_CALL; 4988 } 4989 return AUDIO_STREAM_ACCESSIBILITY; 4990 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4991 return AUDIO_STREAM_SYSTEM; 4992 case AUDIO_USAGE_VOICE_COMMUNICATION: 4993 return AUDIO_STREAM_VOICE_CALL; 4994 4995 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4996 return AUDIO_STREAM_DTMF; 4997 4998 case AUDIO_USAGE_ALARM: 4999 return AUDIO_STREAM_ALARM; 5000 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 5001 return AUDIO_STREAM_RING; 5002 5003 case AUDIO_USAGE_NOTIFICATION: 5004 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 5005 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 5006 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 5007 case AUDIO_USAGE_NOTIFICATION_EVENT: 5008 return AUDIO_STREAM_NOTIFICATION; 5009 5010 case AUDIO_USAGE_UNKNOWN: 5011 default: 5012 return AUDIO_STREAM_MUSIC; 5013 } 5014} 5015 5016bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) 5017{ 5018 // has flags that map to a strategy? 5019 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 5020 return true; 5021 } 5022 5023 // has known usage? 5024 switch (paa->usage) { 5025 case AUDIO_USAGE_UNKNOWN: 5026 case AUDIO_USAGE_MEDIA: 5027 case AUDIO_USAGE_VOICE_COMMUNICATION: 5028 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 5029 case AUDIO_USAGE_ALARM: 5030 case AUDIO_USAGE_NOTIFICATION: 5031 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 5032 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 5033 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 5034 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 5035 case AUDIO_USAGE_NOTIFICATION_EVENT: 5036 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 5037 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 5038 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 5039 case AUDIO_USAGE_GAME: 5040 case AUDIO_USAGE_VIRTUAL_SOURCE: 5041 break; 5042 default: 5043 return false; 5044 } 5045 return true; 5046} 5047 5048bool AudioPolicyManager::isStrategyActive(const sp<AudioOutputDescriptor> outputDesc, 5049 routing_strategy strategy, uint32_t inPastMs, 5050 nsecs_t sysTime) const 5051{ 5052 if ((sysTime == 0) && (inPastMs != 0)) { 5053 sysTime = systemTime(); 5054 } 5055 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5056 if (i == AUDIO_STREAM_PATCH) { 5057 continue; 5058 } 5059 if (((getStrategy((audio_stream_type_t)i) == strategy) || 5060 (NUM_STRATEGIES == strategy)) && 5061 outputDesc->isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 5062 return true; 5063 } 5064 } 5065 return false; 5066} 5067 5068audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 5069{ 5070 return mEngine->getForceUse(usage); 5071} 5072 5073bool AudioPolicyManager::isInCall() 5074{ 5075 return isStateInCall(mEngine->getPhoneState()); 5076} 5077 5078bool AudioPolicyManager::isStateInCall(int state) 5079{ 5080 return is_state_in_call(state); 5081} 5082 5083void AudioPolicyManager::cleanUpForDevice(const sp<DeviceDescriptor>& deviceDesc) 5084{ 5085 for (ssize_t i = (ssize_t)mAudioSources.size() - 1; i >= 0; i--) { 5086 sp<AudioSourceDescriptor> sourceDesc = mAudioSources.valueAt(i); 5087 if (sourceDesc->mDevice->equals(deviceDesc)) { 5088 ALOGV("%s releasing audio source %d", __FUNCTION__, sourceDesc->getHandle()); 5089 stopAudioSource(sourceDesc->getHandle()); 5090 } 5091 } 5092 5093 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 5094 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 5095 bool release = false; 5096 for (size_t j = 0; j < patchDesc->mPatch.num_sources && !release; j++) { 5097 const struct audio_port_config *source = &patchDesc->mPatch.sources[j]; 5098 if (source->type == AUDIO_PORT_TYPE_DEVICE && 5099 source->ext.device.type == deviceDesc->type()) { 5100 release = true; 5101 } 5102 } 5103 for (size_t j = 0; j < patchDesc->mPatch.num_sinks && !release; j++) { 5104 const struct audio_port_config *sink = &patchDesc->mPatch.sinks[j]; 5105 if (sink->type == AUDIO_PORT_TYPE_DEVICE && 5106 sink->ext.device.type == deviceDesc->type()) { 5107 release = true; 5108 } 5109 } 5110 if (release) { 5111 ALOGV("%s releasing patch %u", __FUNCTION__, patchDesc->mHandle); 5112 releaseAudioPatch(patchDesc->mHandle, patchDesc->mUid); 5113 } 5114 } 5115} 5116 5117void AudioPolicyManager::updateAudioProfiles(audio_io_handle_t ioHandle, 5118 AudioProfileVector &profiles) 5119{ 5120 String8 reply; 5121 char *value; 5122 // Format MUST be checked first to update the list of AudioProfile 5123 if (profiles.hasDynamicFormat()) { 5124 reply = mpClientInterface->getParameters(ioHandle, 5125 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 5126 ALOGV("%s: supported formats %s", __FUNCTION__, reply.string()); 5127 value = strpbrk((char *)reply.string(), "="); 5128 if (value == NULL) { 5129 ALOGE("%s: failed to retrieve format, bailing out", __FUNCTION__); 5130 return; 5131 } 5132 profiles.setFormats(formatsFromString(value + 1)); 5133 } 5134 const FormatVector &supportedFormats = profiles.getSupportedFormats(); 5135 5136 for (size_t formatIndex = 0; formatIndex < supportedFormats.size(); formatIndex++) { 5137 audio_format_t format = supportedFormats[formatIndex]; 5138 ChannelsVector channelMasks; 5139 SampleRateVector samplingRates; 5140 AudioParameter requestedParameters; 5141 requestedParameters.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), format); 5142 5143 if (profiles.hasDynamicRateFor(format)) { 5144 reply = mpClientInterface->getParameters(ioHandle, 5145 requestedParameters.toString() + ";" + 5146 AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES); 5147 ALOGV("%s: supported sampling rates %s", __FUNCTION__, reply.string()); 5148 value = strpbrk((char *)reply.string(), "="); 5149 if (value != NULL) { 5150 samplingRates = samplingRatesFromString(value + 1); 5151 } 5152 } 5153 if (profiles.hasDynamicChannelsFor(format)) { 5154 reply = mpClientInterface->getParameters(ioHandle, 5155 requestedParameters.toString() + ";" + 5156 AUDIO_PARAMETER_STREAM_SUP_CHANNELS); 5157 ALOGV("%s: supported channel masks %s", __FUNCTION__, reply.string()); 5158 value = strpbrk((char *)reply.string(), "="); 5159 if (value != NULL) { 5160 channelMasks = channelMasksFromString(value + 1); 5161 } 5162 } 5163 profiles.addProfileFromHal(new AudioProfile(format, channelMasks, samplingRates)); 5164 } 5165} 5166 5167}; // namespace android 5168