AudioPolicyManager.cpp revision 63dea1d5334acf3baa9448086dd504ead57d814b
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#include <inttypes.h> 28#include <math.h> 29 30#include <AudioPolicyManagerInterface.h> 31#include <AudioPolicyEngineInstance.h> 32#include <cutils/properties.h> 33#include <utils/Log.h> 34#include <hardware/audio.h> 35#include <hardware/audio_effect.h> 36#include <media/AudioParameter.h> 37#include <media/AudioPolicyHelper.h> 38#include <soundtrigger/SoundTrigger.h> 39#include "AudioPolicyManager.h" 40#include "audio_policy_conf.h" 41#include <ConfigParsingUtils.h> 42#include <policy.h> 43 44namespace android { 45 46// ---------------------------------------------------------------------------- 47// AudioPolicyInterface implementation 48// ---------------------------------------------------------------------------- 49 50status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 51 audio_policy_dev_state_t state, 52 const char *device_address, 53 const char *device_name) 54{ 55 return setDeviceConnectionStateInt(device, state, device_address, device_name); 56} 57 58status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t device, 59 audio_policy_dev_state_t state, 60 const char *device_address, 61 const char *device_name) 62{ 63 ALOGV("setDeviceConnectionStateInt() device: 0x%X, state %d, address %s name %s", 64- device, state, device_address, device_name); 65 66 // connect/disconnect only 1 device at a time 67 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 68 69 sp<DeviceDescriptor> devDesc = 70 mHwModules.getDeviceDescriptor(device, device_address, device_name); 71 72 // handle output devices 73 if (audio_is_output_device(device)) { 74 SortedVector <audio_io_handle_t> outputs; 75 76 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 77 78 // save a copy of the opened output descriptors before any output is opened or closed 79 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 80 mPreviousOutputs = mOutputs; 81 switch (state) 82 { 83 // handle output device connection 84 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 85 if (index >= 0) { 86 ALOGW("setDeviceConnectionState() device already connected: %x", device); 87 return INVALID_OPERATION; 88 } 89 ALOGV("setDeviceConnectionState() connecting device %x", device); 90 91 // register new device as available 92 index = mAvailableOutputDevices.add(devDesc); 93 if (index >= 0) { 94 sp<HwModule> module = mHwModules.getModuleForDevice(device); 95 if (module == 0) { 96 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 97 device); 98 mAvailableOutputDevices.remove(devDesc); 99 return INVALID_OPERATION; 100 } 101 mAvailableOutputDevices[index]->attach(module); 102 } else { 103 return NO_MEMORY; 104 } 105 106 if (checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress) != NO_ERROR) { 107 mAvailableOutputDevices.remove(devDesc); 108 return INVALID_OPERATION; 109 } 110 // Propagate device availability to Engine 111 mEngine->setDeviceConnectionState(devDesc, state); 112 113 // outputs should never be empty here 114 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 115 "checkOutputsForDevice() returned no outputs but status OK"); 116 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 117 outputs.size()); 118 119 // Send connect to HALs 120 AudioParameter param = AudioParameter(devDesc->mAddress); 121 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 122 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 123 124 } break; 125 // handle output device disconnection 126 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 127 if (index < 0) { 128 ALOGW("setDeviceConnectionState() device not connected: %x", device); 129 return INVALID_OPERATION; 130 } 131 132 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 133 134 // Send Disconnect to HALs 135 AudioParameter param = AudioParameter(devDesc->mAddress); 136 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 137 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 138 139 // remove device from available output devices 140 mAvailableOutputDevices.remove(devDesc); 141 142 checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress); 143 144 // Propagate device availability to Engine 145 mEngine->setDeviceConnectionState(devDesc, state); 146 } break; 147 148 default: 149 ALOGE("setDeviceConnectionState() invalid state: %x", state); 150 return BAD_VALUE; 151 } 152 153 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 154 // output is suspended before any tracks are moved to it 155 checkA2dpSuspend(); 156 checkOutputForAllStrategies(); 157 // outputs must be closed after checkOutputForAllStrategies() is executed 158 if (!outputs.isEmpty()) { 159 for (size_t i = 0; i < outputs.size(); i++) { 160 sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 161 // close unused outputs after device disconnection or direct outputs that have been 162 // opened by checkOutputsForDevice() to query dynamic parameters 163 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 164 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 165 (desc->mDirectOpenCount == 0))) { 166 closeOutput(outputs[i]); 167 } 168 } 169 // check again after closing A2DP output to reset mA2dpSuspended if needed 170 checkA2dpSuspend(); 171 } 172 173 updateDevicesAndOutputs(); 174 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) { 175 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 176 updateCallRouting(newDevice); 177 } 178 for (size_t i = 0; i < mOutputs.size(); i++) { 179 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 180 if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (desc != mPrimaryOutput)) { 181 audio_devices_t newDevice = getNewOutputDevice(desc, true /*fromCache*/); 182 // do not force device change on duplicated output because if device is 0, it will 183 // also force a device 0 for the two outputs it is duplicated to which may override 184 // a valid device selection on those outputs. 185 bool force = !desc->isDuplicated() 186 && (!device_distinguishes_on_address(device) 187 // always force when disconnecting (a non-duplicated device) 188 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 189 setOutputDevice(desc, newDevice, force, 0); 190 } 191 } 192 193 mpClientInterface->onAudioPortListUpdate(); 194 return NO_ERROR; 195 } // end if is output device 196 197 // handle input devices 198 if (audio_is_input_device(device)) { 199 SortedVector <audio_io_handle_t> inputs; 200 201 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 202 switch (state) 203 { 204 // handle input device connection 205 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 206 if (index >= 0) { 207 ALOGW("setDeviceConnectionState() device already connected: %d", device); 208 return INVALID_OPERATION; 209 } 210 sp<HwModule> module = mHwModules.getModuleForDevice(device); 211 if (module == NULL) { 212 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 213 device); 214 return INVALID_OPERATION; 215 } 216 if (checkInputsForDevice(devDesc, state, inputs, devDesc->mAddress) != NO_ERROR) { 217 return INVALID_OPERATION; 218 } 219 220 index = mAvailableInputDevices.add(devDesc); 221 if (index >= 0) { 222 mAvailableInputDevices[index]->attach(module); 223 } else { 224 return NO_MEMORY; 225 } 226 227 // Set connect to HALs 228 AudioParameter param = AudioParameter(devDesc->mAddress); 229 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 230 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 231 232 // Propagate device availability to Engine 233 mEngine->setDeviceConnectionState(devDesc, state); 234 } break; 235 236 // handle input device disconnection 237 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 238 if (index < 0) { 239 ALOGW("setDeviceConnectionState() device not connected: %d", device); 240 return INVALID_OPERATION; 241 } 242 243 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 244 245 // Set Disconnect to HALs 246 AudioParameter param = AudioParameter(devDesc->mAddress); 247 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 248 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 249 250 checkInputsForDevice(devDesc, state, inputs, devDesc->mAddress); 251 mAvailableInputDevices.remove(devDesc); 252 253 // Propagate device availability to Engine 254 mEngine->setDeviceConnectionState(devDesc, state); 255 } break; 256 257 default: 258 ALOGE("setDeviceConnectionState() invalid state: %x", state); 259 return BAD_VALUE; 260 } 261 262 closeAllInputs(); 263 264 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) { 265 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 266 updateCallRouting(newDevice); 267 } 268 269 mpClientInterface->onAudioPortListUpdate(); 270 return NO_ERROR; 271 } // end if is input device 272 273 ALOGW("setDeviceConnectionState() invalid device: %x", device); 274 return BAD_VALUE; 275} 276 277audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 278 const char *device_address) 279{ 280 sp<DeviceDescriptor> devDesc = mHwModules.getDeviceDescriptor(device, device_address, ""); 281 282 DeviceVector *deviceVector; 283 284 if (audio_is_output_device(device)) { 285 deviceVector = &mAvailableOutputDevices; 286 } else if (audio_is_input_device(device)) { 287 deviceVector = &mAvailableInputDevices; 288 } else { 289 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 290 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 291 } 292 return deviceVector->getDeviceConnectionState(devDesc); 293} 294 295void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 296{ 297 bool createTxPatch = false; 298 struct audio_patch patch; 299 patch.num_sources = 1; 300 patch.num_sinks = 1; 301 status_t status; 302 audio_patch_handle_t afPatchHandle; 303 DeviceVector deviceList; 304 305 if(!hasPrimaryOutput()) { 306 return; 307 } 308 audio_devices_t txDevice = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 309 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 310 311 // release existing RX patch if any 312 if (mCallRxPatch != 0) { 313 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 314 mCallRxPatch.clear(); 315 } 316 // release TX patch if any 317 if (mCallTxPatch != 0) { 318 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 319 mCallTxPatch.clear(); 320 } 321 322 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 323 // via setOutputDevice() on primary output. 324 // Otherwise, create two audio patches for TX and RX path. 325 if (availablePrimaryOutputDevices() & rxDevice) { 326 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 327 // If the TX device is also on the primary HW module, setOutputDevice() will take care 328 // of it due to legacy implementation. If not, create a patch. 329 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 330 == AUDIO_DEVICE_NONE) { 331 createTxPatch = true; 332 } 333 } else { 334 // create RX path audio patch 335 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 336 ALOG_ASSERT(!deviceList.isEmpty(), 337 "updateCallRouting() selected device not in output device list"); 338 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 339 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 340 ALOG_ASSERT(!deviceList.isEmpty(), 341 "updateCallRouting() no telephony RX device"); 342 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 343 344 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 345 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 346 347 // request to reuse existing output stream if one is already opened to reach the RX device 348 SortedVector<audio_io_handle_t> outputs = 349 getOutputsForDevice(rxDevice, mOutputs); 350 audio_io_handle_t output = selectOutput(outputs, 351 AUDIO_OUTPUT_FLAG_NONE, 352 AUDIO_FORMAT_INVALID); 353 if (output != AUDIO_IO_HANDLE_NONE) { 354 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 355 ALOG_ASSERT(!outputDesc->isDuplicated(), 356 "updateCallRouting() RX device output is duplicated"); 357 outputDesc->toAudioPortConfig(&patch.sources[1]); 358 patch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 359 patch.num_sources = 2; 360 } 361 362 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 363 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 364 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 365 status); 366 if (status == NO_ERROR) { 367 mCallRxPatch = new AudioPatch(&patch, mUidCached); 368 mCallRxPatch->mAfPatchHandle = afPatchHandle; 369 mCallRxPatch->mUid = mUidCached; 370 } 371 createTxPatch = true; 372 } 373 if (createTxPatch) { 374 375 struct audio_patch patch; 376 patch.num_sources = 1; 377 patch.num_sinks = 1; 378 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 379 ALOG_ASSERT(!deviceList.isEmpty(), 380 "updateCallRouting() selected device not in input device list"); 381 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 382 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 383 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 384 ALOG_ASSERT(!deviceList.isEmpty(), 385 "updateCallRouting() no telephony TX device"); 386 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 387 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 388 389 SortedVector<audio_io_handle_t> outputs = 390 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 391 audio_io_handle_t output = selectOutput(outputs, 392 AUDIO_OUTPUT_FLAG_NONE, 393 AUDIO_FORMAT_INVALID); 394 // request to reuse existing output stream if one is already opened to reach the TX 395 // path output device 396 if (output != AUDIO_IO_HANDLE_NONE) { 397 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 398 ALOG_ASSERT(!outputDesc->isDuplicated(), 399 "updateCallRouting() RX device output is duplicated"); 400 outputDesc->toAudioPortConfig(&patch.sources[1]); 401 patch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 402 patch.num_sources = 2; 403 } 404 405 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 406 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 407 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 408 status); 409 if (status == NO_ERROR) { 410 mCallTxPatch = new AudioPatch(&patch, mUidCached); 411 mCallTxPatch->mAfPatchHandle = afPatchHandle; 412 mCallTxPatch->mUid = mUidCached; 413 } 414 } 415} 416 417void AudioPolicyManager::setPhoneState(audio_mode_t state) 418{ 419 ALOGV("setPhoneState() state %d", state); 420 // store previous phone state for management of sonification strategy below 421 int oldState = mEngine->getPhoneState(); 422 423 if (mEngine->setPhoneState(state) != NO_ERROR) { 424 ALOGW("setPhoneState() invalid or same state %d", state); 425 return; 426 } 427 /// Opens: can these line be executed after the switch of volume curves??? 428 // if leaving call state, handle special case of active streams 429 // pertaining to sonification strategy see handleIncallSonification() 430 if (isStateInCall(oldState)) { 431 ALOGV("setPhoneState() in call state management: new state is %d", state); 432 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 433 if (stream == AUDIO_STREAM_PATCH) { 434 continue; 435 } 436 handleIncallSonification((audio_stream_type_t)stream, false, true); 437 } 438 439 // force reevaluating accessibility routing when call stops 440 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 441 } 442 443 /** 444 * Switching to or from incall state or switching between telephony and VoIP lead to force 445 * routing command. 446 */ 447 bool force = ((is_state_in_call(oldState) != is_state_in_call(state)) 448 || (is_state_in_call(state) && (state != oldState))); 449 450 // check for device and output changes triggered by new phone state 451 checkA2dpSuspend(); 452 checkOutputForAllStrategies(); 453 updateDevicesAndOutputs(); 454 455 int delayMs = 0; 456 if (isStateInCall(state)) { 457 nsecs_t sysTime = systemTime(); 458 for (size_t i = 0; i < mOutputs.size(); i++) { 459 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 460 // mute media and sonification strategies and delay device switch by the largest 461 // latency of any output where either strategy is active. 462 // This avoid sending the ring tone or music tail into the earpiece or headset. 463 if ((isStrategyActive(desc, STRATEGY_MEDIA, 464 SONIFICATION_HEADSET_MUSIC_DELAY, 465 sysTime) || 466 isStrategyActive(desc, STRATEGY_SONIFICATION, 467 SONIFICATION_HEADSET_MUSIC_DELAY, 468 sysTime)) && 469 (delayMs < (int)desc->latency()*2)) { 470 delayMs = desc->latency()*2; 471 } 472 setStrategyMute(STRATEGY_MEDIA, true, desc); 473 setStrategyMute(STRATEGY_MEDIA, false, desc, MUTE_TIME_MS, 474 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 475 setStrategyMute(STRATEGY_SONIFICATION, true, desc); 476 setStrategyMute(STRATEGY_SONIFICATION, false, desc, MUTE_TIME_MS, 477 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 478 } 479 } 480 481 if (hasPrimaryOutput()) { 482 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 483 // the device returned is not necessarily reachable via this output 484 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 485 // force routing command to audio hardware when ending call 486 // even if no device change is needed 487 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 488 rxDevice = mPrimaryOutput->device(); 489 } 490 491 if (state == AUDIO_MODE_IN_CALL) { 492 updateCallRouting(rxDevice, delayMs); 493 } else if (oldState == AUDIO_MODE_IN_CALL) { 494 if (mCallRxPatch != 0) { 495 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 496 mCallRxPatch.clear(); 497 } 498 if (mCallTxPatch != 0) { 499 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 500 mCallTxPatch.clear(); 501 } 502 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 503 } else { 504 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 505 } 506 } 507 // if entering in call state, handle special case of active streams 508 // pertaining to sonification strategy see handleIncallSonification() 509 if (isStateInCall(state)) { 510 ALOGV("setPhoneState() in call state management: new state is %d", state); 511 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 512 if (stream == AUDIO_STREAM_PATCH) { 513 continue; 514 } 515 handleIncallSonification((audio_stream_type_t)stream, true, true); 516 } 517 518 // force reevaluating accessibility routing when call starts 519 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 520 } 521 522 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 523 if (state == AUDIO_MODE_RINGTONE && 524 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 525 mLimitRingtoneVolume = true; 526 } else { 527 mLimitRingtoneVolume = false; 528 } 529} 530 531audio_mode_t AudioPolicyManager::getPhoneState() { 532 return mEngine->getPhoneState(); 533} 534 535void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 536 audio_policy_forced_cfg_t config) 537{ 538 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mEngine->getPhoneState()); 539 540 if (mEngine->setForceUse(usage, config) != NO_ERROR) { 541 ALOGW("setForceUse() could not set force cfg %d for usage %d", config, usage); 542 return; 543 } 544 bool forceVolumeReeval = (usage == AUDIO_POLICY_FORCE_FOR_COMMUNICATION) || 545 (usage == AUDIO_POLICY_FORCE_FOR_DOCK) || 546 (usage == AUDIO_POLICY_FORCE_FOR_SYSTEM); 547 548 // check for device and output changes triggered by new force usage 549 checkA2dpSuspend(); 550 checkOutputForAllStrategies(); 551 updateDevicesAndOutputs(); 552 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) { 553 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 554 updateCallRouting(newDevice); 555 } 556 for (size_t i = 0; i < mOutputs.size(); i++) { 557 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 558 audio_devices_t newDevice = getNewOutputDevice(outputDesc, true /*fromCache*/); 559 if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (outputDesc != mPrimaryOutput)) { 560 setOutputDevice(outputDesc, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 561 } 562 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 563 applyStreamVolumes(outputDesc, newDevice, 0, true); 564 } 565 } 566 567 audio_io_handle_t activeInput = mInputs.getActiveInput(); 568 if (activeInput != 0) { 569 setInputDevice(activeInput, getNewInputDevice(activeInput)); 570 } 571 572} 573 574void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 575{ 576 ALOGV("setSystemProperty() property %s, value %s", property, value); 577} 578 579// Find a direct output profile compatible with the parameters passed, even if the input flags do 580// not explicitly request a direct output 581sp<IOProfile> AudioPolicyManager::getProfileForDirectOutput( 582 audio_devices_t device, 583 uint32_t samplingRate, 584 audio_format_t format, 585 audio_channel_mask_t channelMask, 586 audio_output_flags_t flags) 587{ 588 // only retain flags that will drive the direct output profile selection 589 // if explicitly requested 590 static const uint32_t kRelevantFlags = 591 (AUDIO_OUTPUT_FLAG_HW_AV_SYNC | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 592 flags = 593 (audio_output_flags_t)((flags & kRelevantFlags) | AUDIO_OUTPUT_FLAG_DIRECT); 594 595 sp<IOProfile> profile; 596 597 for (size_t i = 0; i < mHwModules.size(); i++) { 598 if (mHwModules[i]->mHandle == 0) { 599 continue; 600 } 601 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 602 sp<IOProfile> curProfile = mHwModules[i]->mOutputProfiles[j]; 603 if (!curProfile->isCompatibleProfile(device, String8(""), 604 samplingRate, NULL /*updatedSamplingRate*/, 605 format, NULL /*updatedFormat*/, 606 channelMask, NULL /*updatedChannelMask*/, 607 flags)) { 608 continue; 609 } 610 // reject profiles not corresponding to a device currently available 611 if ((mAvailableOutputDevices.types() & curProfile->mSupportedDevices.types()) == 0) { 612 continue; 613 } 614 // if several profiles are compatible, give priority to one with offload capability 615 if (profile != 0 && ((curProfile->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0)) { 616 continue; 617 } 618 profile = curProfile; 619 if ((profile->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 620 break; 621 } 622 } 623 } 624 return profile; 625} 626 627audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 628 uint32_t samplingRate, 629 audio_format_t format, 630 audio_channel_mask_t channelMask, 631 audio_output_flags_t flags, 632 const audio_offload_info_t *offloadInfo) 633{ 634 routing_strategy strategy = getStrategy(stream); 635 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 636 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 637 device, stream, samplingRate, format, channelMask, flags); 638 639 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 640 stream, samplingRate,format, channelMask, 641 flags, offloadInfo); 642} 643 644status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 645 audio_io_handle_t *output, 646 audio_session_t session, 647 audio_stream_type_t *stream, 648 uid_t uid, 649 uint32_t samplingRate, 650 audio_format_t format, 651 audio_channel_mask_t channelMask, 652 audio_output_flags_t flags, 653 audio_port_handle_t selectedDeviceId, 654 const audio_offload_info_t *offloadInfo) 655{ 656 audio_attributes_t attributes; 657 if (attr != NULL) { 658 if (!isValidAttributes(attr)) { 659 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 660 attr->usage, attr->content_type, attr->flags, 661 attr->tags); 662 return BAD_VALUE; 663 } 664 attributes = *attr; 665 } else { 666 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 667 ALOGE("getOutputForAttr(): invalid stream type"); 668 return BAD_VALUE; 669 } 670 stream_type_to_audio_attributes(*stream, &attributes); 671 } 672 sp<SwAudioOutputDescriptor> desc; 673 if (mPolicyMixes.getOutputForAttr(attributes, desc) == NO_ERROR) { 674 ALOG_ASSERT(desc != 0, "Invalid desc returned by getOutputForAttr"); 675 if (!audio_is_linear_pcm(format)) { 676 return BAD_VALUE; 677 } 678 *stream = streamTypefromAttributesInt(&attributes); 679 *output = desc->mIoHandle; 680 ALOGV("getOutputForAttr() returns output %d", *output); 681 return NO_ERROR; 682 } 683 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE) { 684 ALOGW("getOutputForAttr() no policy mix found for usage AUDIO_USAGE_VIRTUAL_SOURCE"); 685 return BAD_VALUE; 686 } 687 688 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x" 689 " session %d selectedDeviceId %d", 690 attributes.usage, attributes.content_type, attributes.tags, attributes.flags, 691 session, selectedDeviceId); 692 693 *stream = streamTypefromAttributesInt(&attributes); 694 695 // Explicit routing? 696 sp<DeviceDescriptor> deviceDesc; 697 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 698 if (mAvailableOutputDevices[i]->getId() == selectedDeviceId) { 699 deviceDesc = mAvailableOutputDevices[i]; 700 break; 701 } 702 } 703 mOutputRoutes.addRoute(session, *stream, SessionRoute::SOURCE_TYPE_NA, deviceDesc, uid); 704 705 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 706 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 707 708 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 709 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 710 } 711 712 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 713 device, samplingRate, format, channelMask, flags); 714 715 *output = getOutputForDevice(device, session, *stream, 716 samplingRate, format, channelMask, 717 flags, offloadInfo); 718 if (*output == AUDIO_IO_HANDLE_NONE) { 719 mOutputRoutes.removeRoute(session); 720 return INVALID_OPERATION; 721 } 722 723 return NO_ERROR; 724} 725 726audio_io_handle_t AudioPolicyManager::getOutputForDevice( 727 audio_devices_t device, 728 audio_session_t session __unused, 729 audio_stream_type_t stream, 730 uint32_t samplingRate, 731 audio_format_t format, 732 audio_channel_mask_t channelMask, 733 audio_output_flags_t flags, 734 const audio_offload_info_t *offloadInfo) 735{ 736 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 737 uint32_t latency = 0; 738 status_t status; 739 740#ifdef AUDIO_POLICY_TEST 741 if (mCurOutput != 0) { 742 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 743 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 744 745 if (mTestOutputs[mCurOutput] == 0) { 746 ALOGV("getOutput() opening test output"); 747 sp<AudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(NULL, 748 mpClientInterface); 749 outputDesc->mDevice = mTestDevice; 750 outputDesc->mLatency = mTestLatencyMs; 751 outputDesc->mFlags = 752 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 753 outputDesc->mRefCount[stream] = 0; 754 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 755 config.sample_rate = mTestSamplingRate; 756 config.channel_mask = mTestChannels; 757 config.format = mTestFormat; 758 if (offloadInfo != NULL) { 759 config.offload_info = *offloadInfo; 760 } 761 status = mpClientInterface->openOutput(0, 762 &mTestOutputs[mCurOutput], 763 &config, 764 &outputDesc->mDevice, 765 String8(""), 766 &outputDesc->mLatency, 767 outputDesc->mFlags); 768 if (status == NO_ERROR) { 769 outputDesc->mSamplingRate = config.sample_rate; 770 outputDesc->mFormat = config.format; 771 outputDesc->mChannelMask = config.channel_mask; 772 AudioParameter outputCmd = AudioParameter(); 773 outputCmd.addInt(String8("set_id"),mCurOutput); 774 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 775 addOutput(mTestOutputs[mCurOutput], outputDesc); 776 } 777 } 778 return mTestOutputs[mCurOutput]; 779 } 780#endif //AUDIO_POLICY_TEST 781 782 // open a direct output if required by specified parameters 783 //force direct flag if offload flag is set: offloading implies a direct output stream 784 // and all common behaviors are driven by checking only the direct flag 785 // this should normally be set appropriately in the policy configuration file 786 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 787 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 788 } 789 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 790 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 791 } 792 // only allow deep buffering for music stream type 793 if (stream != AUDIO_STREAM_MUSIC) { 794 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 795 } else if (/* stream == AUDIO_STREAM_MUSIC && */ 796 flags == AUDIO_OUTPUT_FLAG_NONE && 797 property_get_bool("audio.deep_buffer.media", false /* default_value */)) { 798 // use DEEP_BUFFER as default output for music stream type 799 flags = (audio_output_flags_t)AUDIO_OUTPUT_FLAG_DEEP_BUFFER; 800 } 801 if (stream == AUDIO_STREAM_TTS) { 802 flags = AUDIO_OUTPUT_FLAG_TTS; 803 } 804 805 sp<IOProfile> profile; 806 807 // skip direct output selection if the request can obviously be attached to a mixed output 808 // and not explicitly requested 809 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 810 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 811 audio_channel_count_from_out_mask(channelMask) <= 2) { 812 goto non_direct_output; 813 } 814 815 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 816 // creating an offloaded track and tearing it down immediately after start when audioflinger 817 // detects there is an active non offloadable effect. 818 // FIXME: We should check the audio session here but we do not have it in this context. 819 // This may prevent offloading in rare situations where effects are left active by apps 820 // in the background. 821 822 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 823 !mEffects.isNonOffloadableEffectEnabled()) { 824 profile = getProfileForDirectOutput(device, 825 samplingRate, 826 format, 827 channelMask, 828 (audio_output_flags_t)flags); 829 } 830 831 if (profile != 0) { 832 sp<SwAudioOutputDescriptor> outputDesc = NULL; 833 834 for (size_t i = 0; i < mOutputs.size(); i++) { 835 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 836 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 837 outputDesc = desc; 838 // reuse direct output if currently open and configured with same parameters 839 if ((samplingRate == outputDesc->mSamplingRate) && 840 (format == outputDesc->mFormat) && 841 (channelMask == outputDesc->mChannelMask)) { 842 outputDesc->mDirectOpenCount++; 843 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 844 return mOutputs.keyAt(i); 845 } 846 } 847 } 848 // close direct output if currently open and configured with different parameters 849 if (outputDesc != NULL) { 850 closeOutput(outputDesc->mIoHandle); 851 } 852 853 // if the selected profile is offloaded and no offload info was specified, 854 // create a default one 855 audio_offload_info_t defaultOffloadInfo = AUDIO_INFO_INITIALIZER; 856 if ((profile->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) && !offloadInfo) { 857 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 858 defaultOffloadInfo.sample_rate = samplingRate; 859 defaultOffloadInfo.channel_mask = channelMask; 860 defaultOffloadInfo.format = format; 861 defaultOffloadInfo.stream_type = stream; 862 defaultOffloadInfo.bit_rate = 0; 863 defaultOffloadInfo.duration_us = -1; 864 defaultOffloadInfo.has_video = true; // conservative 865 defaultOffloadInfo.is_streaming = true; // likely 866 offloadInfo = &defaultOffloadInfo; 867 } 868 869 outputDesc = new SwAudioOutputDescriptor(profile, mpClientInterface); 870 outputDesc->mDevice = device; 871 outputDesc->mLatency = 0; 872 outputDesc->mFlags = (audio_output_flags_t)(outputDesc->mFlags | flags); 873 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 874 config.sample_rate = samplingRate; 875 config.channel_mask = channelMask; 876 config.format = format; 877 if (offloadInfo != NULL) { 878 config.offload_info = *offloadInfo; 879 } 880 status = mpClientInterface->openOutput(profile->getModuleHandle(), 881 &output, 882 &config, 883 &outputDesc->mDevice, 884 String8(""), 885 &outputDesc->mLatency, 886 outputDesc->mFlags); 887 888 // only accept an output with the requested parameters 889 if (status != NO_ERROR || 890 (samplingRate != 0 && samplingRate != config.sample_rate) || 891 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 892 (channelMask != 0 && channelMask != config.channel_mask)) { 893 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 894 "format %d %d, channelMask %04x %04x", output, samplingRate, 895 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 896 outputDesc->mChannelMask); 897 if (output != AUDIO_IO_HANDLE_NONE) { 898 mpClientInterface->closeOutput(output); 899 } 900 // fall back to mixer output if possible when the direct output could not be open 901 if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) { 902 goto non_direct_output; 903 } 904 return AUDIO_IO_HANDLE_NONE; 905 } 906 outputDesc->mSamplingRate = config.sample_rate; 907 outputDesc->mChannelMask = config.channel_mask; 908 outputDesc->mFormat = config.format; 909 outputDesc->mRefCount[stream] = 0; 910 outputDesc->mStopTime[stream] = 0; 911 outputDesc->mDirectOpenCount = 1; 912 913 audio_io_handle_t srcOutput = getOutputForEffect(); 914 addOutput(output, outputDesc); 915 audio_io_handle_t dstOutput = getOutputForEffect(); 916 if (dstOutput == output) { 917 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 918 } 919 mPreviousOutputs = mOutputs; 920 ALOGV("getOutput() returns new direct output %d", output); 921 mpClientInterface->onAudioPortListUpdate(); 922 return output; 923 } 924 925non_direct_output: 926 // ignoring channel mask due to downmix capability in mixer 927 928 // open a non direct output 929 930 // for non direct outputs, only PCM is supported 931 if (audio_is_linear_pcm(format)) { 932 // get which output is suitable for the specified stream. The actual 933 // routing change will happen when startOutput() will be called 934 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 935 936 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 937 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 938 output = selectOutput(outputs, flags, format); 939 } 940 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 941 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 942 943 ALOGV(" getOutputForDevice() returns output %d", output); 944 945 return output; 946} 947 948audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 949 audio_output_flags_t flags, 950 audio_format_t format) 951{ 952 // select one output among several that provide a path to a particular device or set of 953 // devices (the list was previously build by getOutputsForDevice()). 954 // The priority is as follows: 955 // 1: the output with the highest number of requested policy flags 956 // 2: the primary output 957 // 3: the first output in the list 958 959 if (outputs.size() == 0) { 960 return 0; 961 } 962 if (outputs.size() == 1) { 963 return outputs[0]; 964 } 965 966 int maxCommonFlags = 0; 967 audio_io_handle_t outputFlags = 0; 968 audio_io_handle_t outputPrimary = 0; 969 970 for (size_t i = 0; i < outputs.size(); i++) { 971 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 972 if (!outputDesc->isDuplicated()) { 973 // if a valid format is specified, skip output if not compatible 974 if (format != AUDIO_FORMAT_INVALID) { 975 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 976 if (format != outputDesc->mFormat) { 977 continue; 978 } 979 } else if (!audio_is_linear_pcm(format)) { 980 continue; 981 } 982 } 983 984 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 985 if (commonFlags > maxCommonFlags) { 986 outputFlags = outputs[i]; 987 maxCommonFlags = commonFlags; 988 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 989 } 990 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 991 outputPrimary = outputs[i]; 992 } 993 } 994 } 995 996 if (outputFlags != 0) { 997 return outputFlags; 998 } 999 if (outputPrimary != 0) { 1000 return outputPrimary; 1001 } 1002 1003 return outputs[0]; 1004} 1005 1006status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1007 audio_stream_type_t stream, 1008 audio_session_t session) 1009{ 1010 ALOGV("startOutput() output %d, stream %d, session %d", 1011 output, stream, session); 1012 ssize_t index = mOutputs.indexOfKey(output); 1013 if (index < 0) { 1014 ALOGW("startOutput() unknown output %d", output); 1015 return BAD_VALUE; 1016 } 1017 1018 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1019 1020 // Routing? 1021 mOutputRoutes.incRouteActivity(session); 1022 1023 audio_devices_t newDevice; 1024 if (outputDesc->mPolicyMix != NULL) { 1025 newDevice = AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 1026 } else if (mOutputRoutes.hasRouteChanged(session)) { 1027 newDevice = getNewOutputDevice(outputDesc, false /*fromCache*/); 1028 checkStrategyRoute(getStrategy(stream), output); 1029 } else { 1030 newDevice = AUDIO_DEVICE_NONE; 1031 } 1032 1033 uint32_t delayMs = 0; 1034 1035 status_t status = startSource(outputDesc, stream, newDevice, &delayMs); 1036 1037 if (status != NO_ERROR) { 1038 mOutputRoutes.decRouteActivity(session); 1039 return status; 1040 } 1041 // Automatically enable the remote submix input when output is started on a re routing mix 1042 // of type MIX_TYPE_RECORDERS 1043 if (audio_is_remote_submix_device(newDevice) && outputDesc->mPolicyMix != NULL && 1044 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1045 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1046 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1047 outputDesc->mPolicyMix->mRegistrationId, 1048 "remote-submix"); 1049 } 1050 1051 if (delayMs != 0) { 1052 usleep(delayMs * 1000); 1053 } 1054 1055 return status; 1056} 1057 1058status_t AudioPolicyManager::startSource(sp<AudioOutputDescriptor> outputDesc, 1059 audio_stream_type_t stream, 1060 audio_devices_t device, 1061 uint32_t *delayMs) 1062{ 1063 // cannot start playback of STREAM_TTS if any other output is being used 1064 uint32_t beaconMuteLatency = 0; 1065 1066 *delayMs = 0; 1067 if (stream == AUDIO_STREAM_TTS) { 1068 ALOGV("\t found BEACON stream"); 1069 if (mOutputs.isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1070 return INVALID_OPERATION; 1071 } else { 1072 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1073 } 1074 } else { 1075 // some playback other than beacon starts 1076 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1077 } 1078 1079 // increment usage count for this stream on the requested output: 1080 // NOTE that the usage count is the same for duplicated output and hardware output which is 1081 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1082 outputDesc->changeRefCount(stream, 1); 1083 1084 if (outputDesc->mRefCount[stream] == 1 || device != AUDIO_DEVICE_NONE) { 1085 // starting an output being rerouted? 1086 if (device == AUDIO_DEVICE_NONE) { 1087 device = getNewOutputDevice(outputDesc, false /*fromCache*/); 1088 } 1089 routing_strategy strategy = getStrategy(stream); 1090 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1091 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1092 (beaconMuteLatency > 0); 1093 uint32_t waitMs = beaconMuteLatency; 1094 bool force = false; 1095 for (size_t i = 0; i < mOutputs.size(); i++) { 1096 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1097 if (desc != outputDesc) { 1098 // force a device change if any other output is managed by the same hw 1099 // module and has a current device selection that differs from selected device. 1100 // In this case, the audio HAL must receive the new device selection so that it can 1101 // change the device currently selected by the other active output. 1102 if (outputDesc->sharesHwModuleWith(desc) && 1103 desc->device() != device) { 1104 force = true; 1105 } 1106 // wait for audio on other active outputs to be presented when starting 1107 // a notification so that audio focus effect can propagate, or that a mute/unmute 1108 // event occurred for beacon 1109 uint32_t latency = desc->latency(); 1110 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1111 waitMs = latency; 1112 } 1113 } 1114 } 1115 uint32_t muteWaitMs = setOutputDevice(outputDesc, device, force); 1116 1117 // handle special case for sonification while in call 1118 if (isInCall()) { 1119 handleIncallSonification(stream, true, false); 1120 } 1121 1122 // apply volume rules for current stream and device if necessary 1123 checkAndSetVolume(stream, 1124 mStreams.valueFor(stream).getVolumeIndex(device), 1125 outputDesc, 1126 device); 1127 1128 // update the outputs if starting an output with a stream that can affect notification 1129 // routing 1130 handleNotificationRoutingForStream(stream); 1131 1132 // force reevaluating accessibility routing when ringtone or alarm starts 1133 if (strategy == STRATEGY_SONIFICATION) { 1134 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 1135 } 1136 } 1137 return NO_ERROR; 1138} 1139 1140 1141status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1142 audio_stream_type_t stream, 1143 audio_session_t session) 1144{ 1145 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1146 ssize_t index = mOutputs.indexOfKey(output); 1147 if (index < 0) { 1148 ALOGW("stopOutput() unknown output %d", output); 1149 return BAD_VALUE; 1150 } 1151 1152 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1153 1154 if (outputDesc->mRefCount[stream] == 1) { 1155 // Automatically disable the remote submix input when output is stopped on a 1156 // re routing mix of type MIX_TYPE_RECORDERS 1157 if (audio_is_remote_submix_device(outputDesc->mDevice) && 1158 outputDesc->mPolicyMix != NULL && 1159 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1160 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1161 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1162 outputDesc->mPolicyMix->mRegistrationId, 1163 "remote-submix"); 1164 } 1165 } 1166 1167 // Routing? 1168 bool forceDeviceUpdate = false; 1169 if (outputDesc->mRefCount[stream] > 0) { 1170 int activityCount = mOutputRoutes.decRouteActivity(session); 1171 forceDeviceUpdate = (mOutputRoutes.hasRoute(session) && (activityCount == 0)); 1172 1173 if (forceDeviceUpdate) { 1174 checkStrategyRoute(getStrategy(stream), AUDIO_IO_HANDLE_NONE); 1175 } 1176 } 1177 1178 return stopSource(outputDesc, stream, forceDeviceUpdate); 1179} 1180 1181status_t AudioPolicyManager::stopSource(sp<AudioOutputDescriptor> outputDesc, 1182 audio_stream_type_t stream, 1183 bool forceDeviceUpdate) 1184{ 1185 // always handle stream stop, check which stream type is stopping 1186 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1187 1188 // handle special case for sonification while in call 1189 if (isInCall()) { 1190 handleIncallSonification(stream, false, false); 1191 } 1192 1193 if (outputDesc->mRefCount[stream] > 0) { 1194 // decrement usage count of this stream on the output 1195 outputDesc->changeRefCount(stream, -1); 1196 1197 // store time at which the stream was stopped - see isStreamActive() 1198 if (outputDesc->mRefCount[stream] == 0 || forceDeviceUpdate) { 1199 outputDesc->mStopTime[stream] = systemTime(); 1200 audio_devices_t newDevice = getNewOutputDevice(outputDesc, false /*fromCache*/); 1201 // delay the device switch by twice the latency because stopOutput() is executed when 1202 // the track stop() command is received and at that time the audio track buffer can 1203 // still contain data that needs to be drained. The latency only covers the audio HAL 1204 // and kernel buffers. Also the latency does not always include additional delay in the 1205 // audio path (audio DSP, CODEC ...) 1206 setOutputDevice(outputDesc, newDevice, false, outputDesc->latency()*2); 1207 1208 // force restoring the device selection on other active outputs if it differs from the 1209 // one being selected for this output 1210 for (size_t i = 0; i < mOutputs.size(); i++) { 1211 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1212 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1213 if (desc != outputDesc && 1214 desc->isActive() && 1215 outputDesc->sharesHwModuleWith(desc) && 1216 (newDevice != desc->device())) { 1217 setOutputDevice(desc, 1218 getNewOutputDevice(desc, false /*fromCache*/), 1219 true, 1220 outputDesc->latency()*2); 1221 } 1222 } 1223 // update the outputs if stopping one with a stream that can affect notification routing 1224 handleNotificationRoutingForStream(stream); 1225 } 1226 return NO_ERROR; 1227 } else { 1228 ALOGW("stopOutput() refcount is already 0"); 1229 return INVALID_OPERATION; 1230 } 1231} 1232 1233void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1234 audio_stream_type_t stream __unused, 1235 audio_session_t session __unused) 1236{ 1237 ALOGV("releaseOutput() %d", output); 1238 ssize_t index = mOutputs.indexOfKey(output); 1239 if (index < 0) { 1240 ALOGW("releaseOutput() releasing unknown output %d", output); 1241 return; 1242 } 1243 1244#ifdef AUDIO_POLICY_TEST 1245 int testIndex = testOutputIndex(output); 1246 if (testIndex != 0) { 1247 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1248 if (outputDesc->isActive()) { 1249 mpClientInterface->closeOutput(output); 1250 removeOutput(output); 1251 mTestOutputs[testIndex] = 0; 1252 } 1253 return; 1254 } 1255#endif //AUDIO_POLICY_TEST 1256 1257 // Routing 1258 mOutputRoutes.removeRoute(session); 1259 1260 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(index); 1261 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1262 if (desc->mDirectOpenCount <= 0) { 1263 ALOGW("releaseOutput() invalid open count %d for output %d", 1264 desc->mDirectOpenCount, output); 1265 return; 1266 } 1267 if (--desc->mDirectOpenCount == 0) { 1268 closeOutput(output); 1269 // If effects where present on the output, audioflinger moved them to the primary 1270 // output by default: move them back to the appropriate output. 1271 audio_io_handle_t dstOutput = getOutputForEffect(); 1272 if (hasPrimaryOutput() && dstOutput != mPrimaryOutput->mIoHandle) { 1273 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, 1274 mPrimaryOutput->mIoHandle, dstOutput); 1275 } 1276 mpClientInterface->onAudioPortListUpdate(); 1277 } 1278 } 1279} 1280 1281 1282status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1283 audio_io_handle_t *input, 1284 audio_session_t session, 1285 uid_t uid, 1286 uint32_t samplingRate, 1287 audio_format_t format, 1288 audio_channel_mask_t channelMask, 1289 audio_input_flags_t flags, 1290 audio_port_handle_t selectedDeviceId, 1291 input_type_t *inputType) 1292{ 1293 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1294 "session %d, flags %#x", 1295 attr->source, samplingRate, format, channelMask, session, flags); 1296 1297 *input = AUDIO_IO_HANDLE_NONE; 1298 *inputType = API_INPUT_INVALID; 1299 audio_devices_t device; 1300 // handle legacy remote submix case where the address was not always specified 1301 String8 address = String8(""); 1302 bool isSoundTrigger = false; 1303 audio_source_t inputSource = attr->source; 1304 audio_source_t halInputSource; 1305 AudioMix *policyMix = NULL; 1306 1307 if (inputSource == AUDIO_SOURCE_DEFAULT) { 1308 inputSource = AUDIO_SOURCE_MIC; 1309 } 1310 halInputSource = inputSource; 1311 1312 // Explicit routing? 1313 sp<DeviceDescriptor> deviceDesc; 1314 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1315 if (mAvailableInputDevices[i]->getId() == selectedDeviceId) { 1316 deviceDesc = mAvailableInputDevices[i]; 1317 break; 1318 } 1319 } 1320 mInputRoutes.addRoute(session, SessionRoute::STREAM_TYPE_NA, inputSource, deviceDesc, uid); 1321 1322 if (inputSource == AUDIO_SOURCE_REMOTE_SUBMIX && 1323 strncmp(attr->tags, "addr=", strlen("addr=")) == 0) { 1324 status_t ret = mPolicyMixes.getInputMixForAttr(*attr, &policyMix); 1325 if (ret != NO_ERROR) { 1326 return ret; 1327 } 1328 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1329 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 1330 address = String8(attr->tags + strlen("addr=")); 1331 } else { 1332 device = getDeviceAndMixForInputSource(inputSource, &policyMix); 1333 if (device == AUDIO_DEVICE_NONE) { 1334 ALOGW("getInputForAttr() could not find device for source %d", inputSource); 1335 return BAD_VALUE; 1336 } 1337 if (policyMix != NULL) { 1338 address = policyMix->mRegistrationId; 1339 if (policyMix->mMixType == MIX_TYPE_RECORDERS) { 1340 // there is an external policy, but this input is attached to a mix of recorders, 1341 // meaning it receives audio injected into the framework, so the recorder doesn't 1342 // know about it and is therefore considered "legacy" 1343 *inputType = API_INPUT_LEGACY; 1344 } else { 1345 // recording a mix of players defined by an external policy, we're rerouting for 1346 // an external policy 1347 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1348 } 1349 } else if (audio_is_remote_submix_device(device)) { 1350 address = String8("0"); 1351 *inputType = API_INPUT_MIX_CAPTURE; 1352 } else { 1353 *inputType = API_INPUT_LEGACY; 1354 } 1355 // adapt channel selection to input source 1356 switch (inputSource) { 1357 case AUDIO_SOURCE_VOICE_UPLINK: 1358 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1359 break; 1360 case AUDIO_SOURCE_VOICE_DOWNLINK: 1361 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1362 break; 1363 case AUDIO_SOURCE_VOICE_CALL: 1364 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1365 break; 1366 default: 1367 break; 1368 } 1369 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1370 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1371 if (index >= 0) { 1372 *input = mSoundTriggerSessions.valueFor(session); 1373 isSoundTrigger = true; 1374 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1375 ALOGV("SoundTrigger capture on session %d input %d", session, *input); 1376 } else { 1377 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1378 } 1379 } 1380 } 1381 1382 // find a compatible input profile (not necessarily identical in parameters) 1383 sp<IOProfile> profile; 1384 // samplingRate and flags may be updated by getInputProfile 1385 uint32_t profileSamplingRate = samplingRate; 1386 audio_format_t profileFormat = format; 1387 audio_channel_mask_t profileChannelMask = channelMask; 1388 audio_input_flags_t profileFlags = flags; 1389 for (;;) { 1390 profile = getInputProfile(device, address, 1391 profileSamplingRate, profileFormat, profileChannelMask, 1392 profileFlags); 1393 if (profile != 0) { 1394 break; // success 1395 } else if (profileFlags != AUDIO_INPUT_FLAG_NONE) { 1396 profileFlags = AUDIO_INPUT_FLAG_NONE; // retry 1397 } else { // fail 1398 ALOGW("getInputForAttr() could not find profile for device 0x%X, samplingRate %u," 1399 "format %#x, channelMask 0x%X, flags %#x", 1400 device, samplingRate, format, channelMask, flags); 1401 return BAD_VALUE; 1402 } 1403 } 1404 1405 if (profile->getModuleHandle() == 0) { 1406 ALOGE("getInputForAttr(): HW module %s not opened", profile->getModuleName()); 1407 return NO_INIT; 1408 } 1409 1410 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1411 config.sample_rate = profileSamplingRate; 1412 config.channel_mask = profileChannelMask; 1413 config.format = profileFormat; 1414 1415 status_t status = mpClientInterface->openInput(profile->getModuleHandle(), 1416 input, 1417 &config, 1418 &device, 1419 address, 1420 halInputSource, 1421 profileFlags); 1422 1423 // only accept input with the exact requested set of parameters 1424 if (status != NO_ERROR || *input == AUDIO_IO_HANDLE_NONE || 1425 (profileSamplingRate != config.sample_rate) || 1426 (profileFormat != config.format) || 1427 (profileChannelMask != config.channel_mask)) { 1428 ALOGW("getInputForAttr() failed opening input: samplingRate %d, format %d," 1429 " channelMask %x", 1430 samplingRate, format, channelMask); 1431 if (*input != AUDIO_IO_HANDLE_NONE) { 1432 mpClientInterface->closeInput(*input); 1433 } 1434 return BAD_VALUE; 1435 } 1436 1437 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1438 inputDesc->mInputSource = inputSource; 1439 inputDesc->mRefCount = 0; 1440 inputDesc->mOpenRefCount = 1; 1441 inputDesc->mSamplingRate = profileSamplingRate; 1442 inputDesc->mFormat = profileFormat; 1443 inputDesc->mChannelMask = profileChannelMask; 1444 inputDesc->mDevice = device; 1445 inputDesc->mSessions.add(session); 1446 inputDesc->mIsSoundTrigger = isSoundTrigger; 1447 inputDesc->mPolicyMix = policyMix; 1448 1449 ALOGV("getInputForAttr() returns input type = %d", *inputType); 1450 1451 addInput(*input, inputDesc); 1452 mpClientInterface->onAudioPortListUpdate(); 1453 1454 return NO_ERROR; 1455} 1456 1457status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1458 audio_session_t session) 1459{ 1460 ALOGV("startInput() input %d", input); 1461 ssize_t index = mInputs.indexOfKey(input); 1462 if (index < 0) { 1463 ALOGW("startInput() unknown input %d", input); 1464 return BAD_VALUE; 1465 } 1466 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1467 1468 index = inputDesc->mSessions.indexOf(session); 1469 if (index < 0) { 1470 ALOGW("startInput() unknown session %d on input %d", session, input); 1471 return BAD_VALUE; 1472 } 1473 1474 // virtual input devices are compatible with other input devices 1475 if (!is_virtual_input_device(inputDesc->mDevice)) { 1476 1477 // for a non-virtual input device, check if there is another (non-virtual) active input 1478 audio_io_handle_t activeInput = mInputs.getActiveInput(); 1479 if (activeInput != 0 && activeInput != input) { 1480 1481 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1482 // otherwise the active input continues and the new input cannot be started. 1483 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1484 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1485 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1486 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1487 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1488 } else { 1489 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1490 return INVALID_OPERATION; 1491 } 1492 } 1493 } 1494 1495 // Routing? 1496 mInputRoutes.incRouteActivity(session); 1497 1498 if (inputDesc->mRefCount == 0 || mInputRoutes.hasRouteChanged(session)) { 1499 // if input maps to a dynamic policy with an activity listener, notify of state change 1500 if ((inputDesc->mPolicyMix != NULL) 1501 && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) { 1502 mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mRegistrationId, 1503 MIX_STATE_MIXING); 1504 } 1505 1506 if (mInputs.activeInputsCount() == 0) { 1507 SoundTrigger::setCaptureState(true); 1508 } 1509 setInputDevice(input, getNewInputDevice(input), true /* force */); 1510 1511 // automatically enable the remote submix output when input is started if not 1512 // used by a policy mix of type MIX_TYPE_RECORDERS 1513 // For remote submix (a virtual device), we open only one input per capture request. 1514 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1515 String8 address = String8(""); 1516 if (inputDesc->mPolicyMix == NULL) { 1517 address = String8("0"); 1518 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1519 address = inputDesc->mPolicyMix->mRegistrationId; 1520 } 1521 if (address != "") { 1522 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1523 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1524 address, "remote-submix"); 1525 } 1526 } 1527 } 1528 1529 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1530 1531 inputDesc->mRefCount++; 1532 return NO_ERROR; 1533} 1534 1535status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1536 audio_session_t session) 1537{ 1538 ALOGV("stopInput() input %d", input); 1539 ssize_t index = mInputs.indexOfKey(input); 1540 if (index < 0) { 1541 ALOGW("stopInput() unknown input %d", input); 1542 return BAD_VALUE; 1543 } 1544 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1545 1546 index = inputDesc->mSessions.indexOf(session); 1547 if (index < 0) { 1548 ALOGW("stopInput() unknown session %d on input %d", session, input); 1549 return BAD_VALUE; 1550 } 1551 1552 if (inputDesc->mRefCount == 0) { 1553 ALOGW("stopInput() input %d already stopped", input); 1554 return INVALID_OPERATION; 1555 } 1556 1557 inputDesc->mRefCount--; 1558 1559 // Routing? 1560 mInputRoutes.decRouteActivity(session); 1561 1562 if (inputDesc->mRefCount == 0) { 1563 // if input maps to a dynamic policy with an activity listener, notify of state change 1564 if ((inputDesc->mPolicyMix != NULL) 1565 && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) { 1566 mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mRegistrationId, 1567 MIX_STATE_IDLE); 1568 } 1569 1570 // automatically disable the remote submix output when input is stopped if not 1571 // used by a policy mix of type MIX_TYPE_RECORDERS 1572 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1573 String8 address = String8(""); 1574 if (inputDesc->mPolicyMix == NULL) { 1575 address = String8("0"); 1576 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1577 address = inputDesc->mPolicyMix->mRegistrationId; 1578 } 1579 if (address != "") { 1580 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1581 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1582 address, "remote-submix"); 1583 } 1584 } 1585 1586 resetInputDevice(input); 1587 1588 if (mInputs.activeInputsCount() == 0) { 1589 SoundTrigger::setCaptureState(false); 1590 } 1591 } 1592 return NO_ERROR; 1593} 1594 1595void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1596 audio_session_t session) 1597{ 1598 ALOGV("releaseInput() %d", input); 1599 ssize_t index = mInputs.indexOfKey(input); 1600 if (index < 0) { 1601 ALOGW("releaseInput() releasing unknown input %d", input); 1602 return; 1603 } 1604 1605 // Routing 1606 mInputRoutes.removeRoute(session); 1607 1608 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1609 ALOG_ASSERT(inputDesc != 0); 1610 1611 index = inputDesc->mSessions.indexOf(session); 1612 if (index < 0) { 1613 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1614 return; 1615 } 1616 inputDesc->mSessions.remove(session); 1617 if (inputDesc->mOpenRefCount == 0) { 1618 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1619 return; 1620 } 1621 inputDesc->mOpenRefCount--; 1622 if (inputDesc->mOpenRefCount > 0) { 1623 ALOGV("releaseInput() exit > 0"); 1624 return; 1625 } 1626 1627 closeInput(input); 1628 mpClientInterface->onAudioPortListUpdate(); 1629 ALOGV("releaseInput() exit"); 1630} 1631 1632void AudioPolicyManager::closeAllInputs() { 1633 bool patchRemoved = false; 1634 1635 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1636 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1637 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1638 if (patch_index >= 0) { 1639 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1640 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1641 mAudioPatches.removeItemsAt(patch_index); 1642 patchRemoved = true; 1643 } 1644 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1645 } 1646 mInputs.clear(); 1647 nextAudioPortGeneration(); 1648 1649 if (patchRemoved) { 1650 mpClientInterface->onAudioPatchListUpdate(); 1651 } 1652} 1653 1654void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1655 int indexMin, 1656 int indexMax) 1657{ 1658 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1659 mEngine->initStreamVolume(stream, indexMin, indexMax); 1660 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1661 if (stream == AUDIO_STREAM_MUSIC) { 1662 mEngine->initStreamVolume(AUDIO_STREAM_ACCESSIBILITY, indexMin, indexMax); 1663 } 1664} 1665 1666status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1667 int index, 1668 audio_devices_t device) 1669{ 1670 1671 if ((index < mStreams.valueFor(stream).getVolumeIndexMin()) || 1672 (index > mStreams.valueFor(stream).getVolumeIndexMax())) { 1673 return BAD_VALUE; 1674 } 1675 if (!audio_is_output_device(device)) { 1676 return BAD_VALUE; 1677 } 1678 1679 // Force max volume if stream cannot be muted 1680 if (!mStreams.canBeMuted(stream)) index = mStreams.valueFor(stream).getVolumeIndexMax(); 1681 1682 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1683 stream, device, index); 1684 1685 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1686 // clear all device specific values 1687 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1688 mStreams.clearCurrentVolumeIndex(stream); 1689 } 1690 mStreams.addCurrentVolumeIndex(stream, device, index); 1691 1692 // update volume on all outputs whose current device is also selected by the same 1693 // strategy as the device specified by the caller 1694 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1695 1696 1697 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1698 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1699 if (stream == AUDIO_STREAM_MUSIC) { 1700 mStreams.addCurrentVolumeIndex(AUDIO_STREAM_ACCESSIBILITY, device, index); 1701 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1702 } 1703 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1704 (device & (strategyDevice | accessibilityDevice)) == 0) { 1705 return NO_ERROR; 1706 } 1707 status_t status = NO_ERROR; 1708 for (size_t i = 0; i < mOutputs.size(); i++) { 1709 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 1710 audio_devices_t curDevice = Volume::getDeviceForVolume(desc->device()); 1711 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1712 status_t volStatus = checkAndSetVolume(stream, index, desc, curDevice); 1713 if (volStatus != NO_ERROR) { 1714 status = volStatus; 1715 } 1716 } 1717 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0)) { 1718 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1719 index, desc, curDevice); 1720 } 1721 } 1722 return status; 1723} 1724 1725status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1726 int *index, 1727 audio_devices_t device) 1728{ 1729 if (index == NULL) { 1730 return BAD_VALUE; 1731 } 1732 if (!audio_is_output_device(device)) { 1733 return BAD_VALUE; 1734 } 1735 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1736 // the strategy the stream belongs to. 1737 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1738 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1739 } 1740 device = Volume::getDeviceForVolume(device); 1741 1742 *index = mStreams.valueFor(stream).getVolumeIndex(device); 1743 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1744 return NO_ERROR; 1745} 1746 1747audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1748 const SortedVector<audio_io_handle_t>& outputs) 1749{ 1750 // select one output among several suitable for global effects. 1751 // The priority is as follows: 1752 // 1: An offloaded output. If the effect ends up not being offloadable, 1753 // AudioFlinger will invalidate the track and the offloaded output 1754 // will be closed causing the effect to be moved to a PCM output. 1755 // 2: A deep buffer output 1756 // 3: the first output in the list 1757 1758 if (outputs.size() == 0) { 1759 return 0; 1760 } 1761 1762 audio_io_handle_t outputOffloaded = 0; 1763 audio_io_handle_t outputDeepBuffer = 0; 1764 1765 for (size_t i = 0; i < outputs.size(); i++) { 1766 sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1767 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1768 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1769 outputOffloaded = outputs[i]; 1770 } 1771 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1772 outputDeepBuffer = outputs[i]; 1773 } 1774 } 1775 1776 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1777 outputOffloaded, outputDeepBuffer); 1778 if (outputOffloaded != 0) { 1779 return outputOffloaded; 1780 } 1781 if (outputDeepBuffer != 0) { 1782 return outputDeepBuffer; 1783 } 1784 1785 return outputs[0]; 1786} 1787 1788audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1789{ 1790 // apply simple rule where global effects are attached to the same output as MUSIC streams 1791 1792 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1793 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1794 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1795 1796 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1797 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1798 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1799 1800 return output; 1801} 1802 1803status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1804 audio_io_handle_t io, 1805 uint32_t strategy, 1806 int session, 1807 int id) 1808{ 1809 ssize_t index = mOutputs.indexOfKey(io); 1810 if (index < 0) { 1811 index = mInputs.indexOfKey(io); 1812 if (index < 0) { 1813 ALOGW("registerEffect() unknown io %d", io); 1814 return INVALID_OPERATION; 1815 } 1816 } 1817 return mEffects.registerEffect(desc, io, strategy, session, id); 1818} 1819 1820bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1821{ 1822 return mOutputs.isStreamActive(stream, inPastMs); 1823} 1824 1825bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const 1826{ 1827 return mOutputs.isStreamActiveRemotely(stream, inPastMs); 1828} 1829 1830bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1831{ 1832 for (size_t i = 0; i < mInputs.size(); i++) { 1833 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1834 if (inputDescriptor->mRefCount == 0) { 1835 continue; 1836 } 1837 if (inputDescriptor->mInputSource == (int)source) { 1838 return true; 1839 } 1840 // AUDIO_SOURCE_HOTWORD is equivalent to AUDIO_SOURCE_VOICE_RECOGNITION only if it 1841 // corresponds to an active capture triggered by a hardware hotword recognition 1842 if ((source == AUDIO_SOURCE_VOICE_RECOGNITION) && 1843 (inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) { 1844 // FIXME: we should not assume that the first session is the active one and keep 1845 // activity count per session. Same in startInput(). 1846 ssize_t index = mSoundTriggerSessions.indexOfKey(inputDescriptor->mSessions.itemAt(0)); 1847 if (index >= 0) { 1848 return true; 1849 } 1850 } 1851 } 1852 return false; 1853} 1854 1855// Register a list of custom mixes with their attributes and format. 1856// When a mix is registered, corresponding input and output profiles are 1857// added to the remote submix hw module. The profile contains only the 1858// parameters (sampling rate, format...) specified by the mix. 1859// The corresponding input remote submix device is also connected. 1860// 1861// When a remote submix device is connected, the address is checked to select the 1862// appropriate profile and the corresponding input or output stream is opened. 1863// 1864// When capture starts, getInputForAttr() will: 1865// - 1 look for a mix matching the address passed in attribtutes tags if any 1866// - 2 if none found, getDeviceForInputSource() will: 1867// - 2.1 look for a mix matching the attributes source 1868// - 2.2 if none found, default to device selection by policy rules 1869// At this time, the corresponding output remote submix device is also connected 1870// and active playback use cases can be transferred to this mix if needed when reconnecting 1871// after AudioTracks are invalidated 1872// 1873// When playback starts, getOutputForAttr() will: 1874// - 1 look for a mix matching the address passed in attribtutes tags if any 1875// - 2 if none found, look for a mix matching the attributes usage 1876// - 3 if none found, default to device and output selection by policy rules. 1877 1878status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes) 1879{ 1880 sp<HwModule> module; 1881 for (size_t i = 0; i < mHwModules.size(); i++) { 1882 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 1883 mHwModules[i]->mHandle != 0) { 1884 module = mHwModules[i]; 1885 break; 1886 } 1887 } 1888 1889 if (module == 0) { 1890 return INVALID_OPERATION; 1891 } 1892 1893 ALOGV("registerPolicyMixes() num mixes %d", mixes.size()); 1894 1895 for (size_t i = 0; i < mixes.size(); i++) { 1896 String8 address = mixes[i].mRegistrationId; 1897 1898 if (mPolicyMixes.registerMix(address, mixes[i]) != NO_ERROR) { 1899 continue; 1900 } 1901 audio_config_t outputConfig = mixes[i].mFormat; 1902 audio_config_t inputConfig = mixes[i].mFormat; 1903 // NOTE: audio flinger mixer does not support mono output: configure remote submix HAL in 1904 // stereo and let audio flinger do the channel conversion if needed. 1905 outputConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO; 1906 inputConfig.channel_mask = AUDIO_CHANNEL_IN_STEREO; 1907 module->addOutputProfile(address, &outputConfig, 1908 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address); 1909 module->addInputProfile(address, &inputConfig, 1910 AUDIO_DEVICE_IN_REMOTE_SUBMIX, address); 1911 1912 if (mixes[i].mMixType == MIX_TYPE_PLAYERS) { 1913 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1914 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1915 address.string(), "remote-submix"); 1916 } else { 1917 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1918 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1919 address.string(), "remote-submix"); 1920 } 1921 } 1922 return NO_ERROR; 1923} 1924 1925status_t AudioPolicyManager::unregisterPolicyMixes(Vector<AudioMix> mixes) 1926{ 1927 sp<HwModule> module; 1928 for (size_t i = 0; i < mHwModules.size(); i++) { 1929 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 1930 mHwModules[i]->mHandle != 0) { 1931 module = mHwModules[i]; 1932 break; 1933 } 1934 } 1935 1936 if (module == 0) { 1937 return INVALID_OPERATION; 1938 } 1939 1940 ALOGV("unregisterPolicyMixes() num mixes %d", mixes.size()); 1941 1942 for (size_t i = 0; i < mixes.size(); i++) { 1943 String8 address = mixes[i].mRegistrationId; 1944 1945 if (mPolicyMixes.unregisterMix(address) != NO_ERROR) { 1946 continue; 1947 } 1948 1949 if (getDeviceConnectionState(AUDIO_DEVICE_IN_REMOTE_SUBMIX, address.string()) == 1950 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 1951 { 1952 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1953 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1954 address.string(), "remote-submix"); 1955 } 1956 1957 if (getDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address.string()) == 1958 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 1959 { 1960 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1961 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1962 address.string(), "remote-submix"); 1963 } 1964 module->removeOutputProfile(address); 1965 module->removeInputProfile(address); 1966 } 1967 return NO_ERROR; 1968} 1969 1970 1971status_t AudioPolicyManager::dump(int fd) 1972{ 1973 const size_t SIZE = 256; 1974 char buffer[SIZE]; 1975 String8 result; 1976 1977 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1978 result.append(buffer); 1979 1980 snprintf(buffer, SIZE, " Primary Output: %d\n", 1981 hasPrimaryOutput() ? mPrimaryOutput->mIoHandle : AUDIO_IO_HANDLE_NONE); 1982 result.append(buffer); 1983 snprintf(buffer, SIZE, " Phone state: %d\n", mEngine->getPhoneState()); 1984 result.append(buffer); 1985 snprintf(buffer, SIZE, " Force use for communications %d\n", 1986 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION)); 1987 result.append(buffer); 1988 snprintf(buffer, SIZE, " Force use for media %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA)); 1989 result.append(buffer); 1990 snprintf(buffer, SIZE, " Force use for record %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD)); 1991 result.append(buffer); 1992 snprintf(buffer, SIZE, " Force use for dock %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_DOCK)); 1993 result.append(buffer); 1994 snprintf(buffer, SIZE, " Force use for system %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM)); 1995 result.append(buffer); 1996 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 1997 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO)); 1998 result.append(buffer); 1999 write(fd, result.string(), result.size()); 2000 2001 mAvailableOutputDevices.dump(fd, String8("output")); 2002 mAvailableInputDevices.dump(fd, String8("input")); 2003 mHwModules.dump(fd); 2004 mOutputs.dump(fd); 2005 mInputs.dump(fd); 2006 mStreams.dump(fd); 2007 mEffects.dump(fd); 2008 mAudioPatches.dump(fd); 2009 2010 return NO_ERROR; 2011} 2012 2013// This function checks for the parameters which can be offloaded. 2014// This can be enhanced depending on the capability of the DSP and policy 2015// of the system. 2016bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 2017{ 2018 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 2019 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 2020 offloadInfo.sample_rate, offloadInfo.channel_mask, 2021 offloadInfo.format, 2022 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 2023 offloadInfo.has_video); 2024 2025 // Check if offload has been disabled 2026 char propValue[PROPERTY_VALUE_MAX]; 2027 if (property_get("audio.offload.disable", propValue, "0")) { 2028 if (atoi(propValue) != 0) { 2029 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 2030 return false; 2031 } 2032 } 2033 2034 // Check if stream type is music, then only allow offload as of now. 2035 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 2036 { 2037 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 2038 return false; 2039 } 2040 2041 //TODO: enable audio offloading with video when ready 2042 const bool allowOffloadWithVideo = 2043 property_get_bool("audio.offload.video", false /* default_value */); 2044 if (offloadInfo.has_video && !allowOffloadWithVideo) { 2045 ALOGV("isOffloadSupported: has_video == true, returning false"); 2046 return false; 2047 } 2048 2049 //If duration is less than minimum value defined in property, return false 2050 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2051 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2052 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2053 return false; 2054 } 2055 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2056 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2057 return false; 2058 } 2059 2060 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2061 // creating an offloaded track and tearing it down immediately after start when audioflinger 2062 // detects there is an active non offloadable effect. 2063 // FIXME: We should check the audio session here but we do not have it in this context. 2064 // This may prevent offloading in rare situations where effects are left active by apps 2065 // in the background. 2066 if (mEffects.isNonOffloadableEffectEnabled()) { 2067 return false; 2068 } 2069 2070 // See if there is a profile to support this. 2071 // AUDIO_DEVICE_NONE 2072 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2073 offloadInfo.sample_rate, 2074 offloadInfo.format, 2075 offloadInfo.channel_mask, 2076 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2077 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2078 return (profile != 0); 2079} 2080 2081status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2082 audio_port_type_t type, 2083 unsigned int *num_ports, 2084 struct audio_port *ports, 2085 unsigned int *generation) 2086{ 2087 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2088 generation == NULL) { 2089 return BAD_VALUE; 2090 } 2091 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2092 if (ports == NULL) { 2093 *num_ports = 0; 2094 } 2095 2096 size_t portsWritten = 0; 2097 size_t portsMax = *num_ports; 2098 *num_ports = 0; 2099 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2100 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2101 for (size_t i = 0; 2102 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2103 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2104 } 2105 *num_ports += mAvailableOutputDevices.size(); 2106 } 2107 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2108 for (size_t i = 0; 2109 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2110 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2111 } 2112 *num_ports += mAvailableInputDevices.size(); 2113 } 2114 } 2115 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2116 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2117 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2118 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2119 } 2120 *num_ports += mInputs.size(); 2121 } 2122 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2123 size_t numOutputs = 0; 2124 for (size_t i = 0; i < mOutputs.size(); i++) { 2125 if (!mOutputs[i]->isDuplicated()) { 2126 numOutputs++; 2127 if (portsWritten < portsMax) { 2128 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2129 } 2130 } 2131 } 2132 *num_ports += numOutputs; 2133 } 2134 } 2135 *generation = curAudioPortGeneration(); 2136 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2137 return NO_ERROR; 2138} 2139 2140status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2141{ 2142 return NO_ERROR; 2143} 2144 2145status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2146 audio_patch_handle_t *handle, 2147 uid_t uid) 2148{ 2149 ALOGV("createAudioPatch()"); 2150 2151 if (handle == NULL || patch == NULL) { 2152 return BAD_VALUE; 2153 } 2154 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2155 2156 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2157 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2158 return BAD_VALUE; 2159 } 2160 // only one source per audio patch supported for now 2161 if (patch->num_sources > 1) { 2162 return INVALID_OPERATION; 2163 } 2164 2165 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2166 return INVALID_OPERATION; 2167 } 2168 for (size_t i = 0; i < patch->num_sinks; i++) { 2169 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2170 return INVALID_OPERATION; 2171 } 2172 } 2173 2174 sp<AudioPatch> patchDesc; 2175 ssize_t index = mAudioPatches.indexOfKey(*handle); 2176 2177 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2178 patch->sources[0].role, 2179 patch->sources[0].type); 2180#if LOG_NDEBUG == 0 2181 for (size_t i = 0; i < patch->num_sinks; i++) { 2182 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2183 patch->sinks[i].role, 2184 patch->sinks[i].type); 2185 } 2186#endif 2187 2188 if (index >= 0) { 2189 patchDesc = mAudioPatches.valueAt(index); 2190 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2191 mUidCached, patchDesc->mUid, uid); 2192 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2193 return INVALID_OPERATION; 2194 } 2195 } else { 2196 *handle = 0; 2197 } 2198 2199 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2200 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(patch->sources[0].id); 2201 if (outputDesc == NULL) { 2202 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2203 return BAD_VALUE; 2204 } 2205 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2206 outputDesc->mIoHandle); 2207 if (patchDesc != 0) { 2208 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2209 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2210 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2211 return BAD_VALUE; 2212 } 2213 } 2214 DeviceVector devices; 2215 for (size_t i = 0; i < patch->num_sinks; i++) { 2216 // Only support mix to devices connection 2217 // TODO add support for mix to mix connection 2218 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2219 ALOGV("createAudioPatch() source mix but sink is not a device"); 2220 return INVALID_OPERATION; 2221 } 2222 sp<DeviceDescriptor> devDesc = 2223 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2224 if (devDesc == 0) { 2225 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2226 return BAD_VALUE; 2227 } 2228 2229 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->type(), 2230 devDesc->mAddress, 2231 patch->sources[0].sample_rate, 2232 NULL, // updatedSamplingRate 2233 patch->sources[0].format, 2234 NULL, // updatedFormat 2235 patch->sources[0].channel_mask, 2236 NULL, // updatedChannelMask 2237 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2238 ALOGV("createAudioPatch() profile not supported for device %08x", 2239 devDesc->type()); 2240 return INVALID_OPERATION; 2241 } 2242 devices.add(devDesc); 2243 } 2244 if (devices.size() == 0) { 2245 return INVALID_OPERATION; 2246 } 2247 2248 // TODO: reconfigure output format and channels here 2249 ALOGV("createAudioPatch() setting device %08x on output %d", 2250 devices.types(), outputDesc->mIoHandle); 2251 setOutputDevice(outputDesc, devices.types(), true, 0, handle); 2252 index = mAudioPatches.indexOfKey(*handle); 2253 if (index >= 0) { 2254 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2255 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2256 } 2257 patchDesc = mAudioPatches.valueAt(index); 2258 patchDesc->mUid = uid; 2259 ALOGV("createAudioPatch() success"); 2260 } else { 2261 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2262 return INVALID_OPERATION; 2263 } 2264 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2265 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2266 // input device to input mix connection 2267 // only one sink supported when connecting an input device to a mix 2268 if (patch->num_sinks > 1) { 2269 return INVALID_OPERATION; 2270 } 2271 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(patch->sinks[0].id); 2272 if (inputDesc == NULL) { 2273 return BAD_VALUE; 2274 } 2275 if (patchDesc != 0) { 2276 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2277 return BAD_VALUE; 2278 } 2279 } 2280 sp<DeviceDescriptor> devDesc = 2281 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2282 if (devDesc == 0) { 2283 return BAD_VALUE; 2284 } 2285 2286 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->type(), 2287 devDesc->mAddress, 2288 patch->sinks[0].sample_rate, 2289 NULL, /*updatedSampleRate*/ 2290 patch->sinks[0].format, 2291 NULL, /*updatedFormat*/ 2292 patch->sinks[0].channel_mask, 2293 NULL, /*updatedChannelMask*/ 2294 // FIXME for the parameter type, 2295 // and the NONE 2296 (audio_output_flags_t) 2297 AUDIO_INPUT_FLAG_NONE)) { 2298 return INVALID_OPERATION; 2299 } 2300 // TODO: reconfigure output format and channels here 2301 ALOGV("createAudioPatch() setting device %08x on output %d", 2302 devDesc->type(), inputDesc->mIoHandle); 2303 setInputDevice(inputDesc->mIoHandle, devDesc->type(), true, handle); 2304 index = mAudioPatches.indexOfKey(*handle); 2305 if (index >= 0) { 2306 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2307 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2308 } 2309 patchDesc = mAudioPatches.valueAt(index); 2310 patchDesc->mUid = uid; 2311 ALOGV("createAudioPatch() success"); 2312 } else { 2313 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2314 return INVALID_OPERATION; 2315 } 2316 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2317 // device to device connection 2318 if (patchDesc != 0) { 2319 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2320 return BAD_VALUE; 2321 } 2322 } 2323 sp<DeviceDescriptor> srcDeviceDesc = 2324 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2325 if (srcDeviceDesc == 0) { 2326 return BAD_VALUE; 2327 } 2328 2329 //update source and sink with our own data as the data passed in the patch may 2330 // be incomplete. 2331 struct audio_patch newPatch = *patch; 2332 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2333 2334 for (size_t i = 0; i < patch->num_sinks; i++) { 2335 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2336 ALOGV("createAudioPatch() source device but one sink is not a device"); 2337 return INVALID_OPERATION; 2338 } 2339 2340 sp<DeviceDescriptor> sinkDeviceDesc = 2341 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2342 if (sinkDeviceDesc == 0) { 2343 return BAD_VALUE; 2344 } 2345 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2346 2347 // create a software bridge in PatchPanel if: 2348 // - source and sink devices are on differnt HW modules OR 2349 // - audio HAL version is < 3.0 2350 if ((srcDeviceDesc->getModuleHandle() != sinkDeviceDesc->getModuleHandle()) || 2351 (srcDeviceDesc->mModule->mHalVersion < AUDIO_DEVICE_API_VERSION_3_0)) { 2352 // support only one sink device for now to simplify output selection logic 2353 if (patch->num_sinks > 1) { 2354 return INVALID_OPERATION; 2355 } 2356 SortedVector<audio_io_handle_t> outputs = 2357 getOutputsForDevice(sinkDeviceDesc->type(), mOutputs); 2358 // if the sink device is reachable via an opened output stream, request to go via 2359 // this output stream by adding a second source to the patch description 2360 audio_io_handle_t output = selectOutput(outputs, 2361 AUDIO_OUTPUT_FLAG_NONE, 2362 AUDIO_FORMAT_INVALID); 2363 if (output != AUDIO_IO_HANDLE_NONE) { 2364 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2365 if (outputDesc->isDuplicated()) { 2366 return INVALID_OPERATION; 2367 } 2368 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2369 newPatch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 2370 newPatch.num_sources = 2; 2371 } 2372 } 2373 } 2374 // TODO: check from routing capabilities in config file and other conflicting patches 2375 2376 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2377 if (index >= 0) { 2378 afPatchHandle = patchDesc->mAfPatchHandle; 2379 } 2380 2381 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2382 &afPatchHandle, 2383 0); 2384 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2385 status, afPatchHandle); 2386 if (status == NO_ERROR) { 2387 if (index < 0) { 2388 patchDesc = new AudioPatch(&newPatch, uid); 2389 addAudioPatch(patchDesc->mHandle, patchDesc); 2390 } else { 2391 patchDesc->mPatch = newPatch; 2392 } 2393 patchDesc->mAfPatchHandle = afPatchHandle; 2394 *handle = patchDesc->mHandle; 2395 nextAudioPortGeneration(); 2396 mpClientInterface->onAudioPatchListUpdate(); 2397 } else { 2398 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2399 status); 2400 return INVALID_OPERATION; 2401 } 2402 } else { 2403 return BAD_VALUE; 2404 } 2405 } else { 2406 return BAD_VALUE; 2407 } 2408 return NO_ERROR; 2409} 2410 2411status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2412 uid_t uid) 2413{ 2414 ALOGV("releaseAudioPatch() patch %d", handle); 2415 2416 ssize_t index = mAudioPatches.indexOfKey(handle); 2417 2418 if (index < 0) { 2419 return BAD_VALUE; 2420 } 2421 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2422 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2423 mUidCached, patchDesc->mUid, uid); 2424 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2425 return INVALID_OPERATION; 2426 } 2427 2428 struct audio_patch *patch = &patchDesc->mPatch; 2429 patchDesc->mUid = mUidCached; 2430 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2431 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(patch->sources[0].id); 2432 if (outputDesc == NULL) { 2433 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2434 return BAD_VALUE; 2435 } 2436 2437 setOutputDevice(outputDesc, 2438 getNewOutputDevice(outputDesc, true /*fromCache*/), 2439 true, 2440 0, 2441 NULL); 2442 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2443 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2444 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(patch->sinks[0].id); 2445 if (inputDesc == NULL) { 2446 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2447 return BAD_VALUE; 2448 } 2449 setInputDevice(inputDesc->mIoHandle, 2450 getNewInputDevice(inputDesc->mIoHandle), 2451 true, 2452 NULL); 2453 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2454 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2455 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2456 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2457 status, patchDesc->mAfPatchHandle); 2458 removeAudioPatch(patchDesc->mHandle); 2459 nextAudioPortGeneration(); 2460 mpClientInterface->onAudioPatchListUpdate(); 2461 } else { 2462 return BAD_VALUE; 2463 } 2464 } else { 2465 return BAD_VALUE; 2466 } 2467 return NO_ERROR; 2468} 2469 2470status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2471 struct audio_patch *patches, 2472 unsigned int *generation) 2473{ 2474 if (generation == NULL) { 2475 return BAD_VALUE; 2476 } 2477 *generation = curAudioPortGeneration(); 2478 return mAudioPatches.listAudioPatches(num_patches, patches); 2479} 2480 2481status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2482{ 2483 ALOGV("setAudioPortConfig()"); 2484 2485 if (config == NULL) { 2486 return BAD_VALUE; 2487 } 2488 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2489 // Only support gain configuration for now 2490 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2491 return INVALID_OPERATION; 2492 } 2493 2494 sp<AudioPortConfig> audioPortConfig; 2495 if (config->type == AUDIO_PORT_TYPE_MIX) { 2496 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2497 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(config->id); 2498 if (outputDesc == NULL) { 2499 return BAD_VALUE; 2500 } 2501 ALOG_ASSERT(!outputDesc->isDuplicated(), 2502 "setAudioPortConfig() called on duplicated output %d", 2503 outputDesc->mIoHandle); 2504 audioPortConfig = outputDesc; 2505 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2506 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(config->id); 2507 if (inputDesc == NULL) { 2508 return BAD_VALUE; 2509 } 2510 audioPortConfig = inputDesc; 2511 } else { 2512 return BAD_VALUE; 2513 } 2514 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2515 sp<DeviceDescriptor> deviceDesc; 2516 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2517 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2518 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2519 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2520 } else { 2521 return BAD_VALUE; 2522 } 2523 if (deviceDesc == NULL) { 2524 return BAD_VALUE; 2525 } 2526 audioPortConfig = deviceDesc; 2527 } else { 2528 return BAD_VALUE; 2529 } 2530 2531 struct audio_port_config backupConfig; 2532 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2533 if (status == NO_ERROR) { 2534 struct audio_port_config newConfig; 2535 audioPortConfig->toAudioPortConfig(&newConfig, config); 2536 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2537 } 2538 if (status != NO_ERROR) { 2539 audioPortConfig->applyAudioPortConfig(&backupConfig); 2540 } 2541 2542 return status; 2543} 2544 2545void AudioPolicyManager::releaseResourcesForUid(uid_t uid) 2546{ 2547 clearAudioPatches(uid); 2548 clearSessionRoutes(uid); 2549} 2550 2551void AudioPolicyManager::clearAudioPatches(uid_t uid) 2552{ 2553 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 2554 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2555 if (patchDesc->mUid == uid) { 2556 releaseAudioPatch(mAudioPatches.keyAt(i), uid); 2557 } 2558 } 2559} 2560 2561 2562void AudioPolicyManager::checkStrategyRoute(routing_strategy strategy, 2563 audio_io_handle_t ouptutToSkip) 2564{ 2565 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 2566 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 2567 for (size_t j = 0; j < mOutputs.size(); j++) { 2568 if (mOutputs.keyAt(j) == ouptutToSkip) { 2569 continue; 2570 } 2571 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(j); 2572 if (!isStrategyActive(outputDesc, (routing_strategy)strategy)) { 2573 continue; 2574 } 2575 // If the default device for this strategy is on another output mix, 2576 // invalidate all tracks in this strategy to force re connection. 2577 // Otherwise select new device on the output mix. 2578 if (outputs.indexOf(mOutputs.keyAt(j)) < 0) { 2579 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 2580 if (stream == AUDIO_STREAM_PATCH) { 2581 continue; 2582 } 2583 if (getStrategy((audio_stream_type_t)stream) == strategy) { 2584 mpClientInterface->invalidateStream((audio_stream_type_t)stream); 2585 } 2586 } 2587 } else { 2588 audio_devices_t newDevice = getNewOutputDevice(outputDesc, false /*fromCache*/); 2589 setOutputDevice(outputDesc, newDevice, false); 2590 } 2591 } 2592} 2593 2594void AudioPolicyManager::clearSessionRoutes(uid_t uid) 2595{ 2596 // remove output routes associated with this uid 2597 SortedVector<routing_strategy> affectedStrategies; 2598 for (ssize_t i = (ssize_t)mOutputRoutes.size() - 1; i >= 0; i--) { 2599 sp<SessionRoute> route = mOutputRoutes.valueAt(i); 2600 if (route->mUid == uid) { 2601 mOutputRoutes.removeItemsAt(i); 2602 if (route->mDeviceDescriptor != 0) { 2603 affectedStrategies.add(getStrategy(route->mStreamType)); 2604 } 2605 } 2606 } 2607 // reroute outputs if necessary 2608 for (size_t i = 0; i < affectedStrategies.size(); i++) { 2609 checkStrategyRoute(affectedStrategies[i], AUDIO_IO_HANDLE_NONE); 2610 } 2611 2612 // remove input routes associated with this uid 2613 SortedVector<audio_source_t> affectedSources; 2614 for (ssize_t i = (ssize_t)mInputRoutes.size() - 1; i >= 0; i--) { 2615 sp<SessionRoute> route = mInputRoutes.valueAt(i); 2616 if (route->mUid == uid) { 2617 mInputRoutes.removeItemsAt(i); 2618 if (route->mDeviceDescriptor != 0) { 2619 affectedSources.add(route->mSource); 2620 } 2621 } 2622 } 2623 // reroute inputs if necessary 2624 SortedVector<audio_io_handle_t> inputsToClose; 2625 for (size_t i = 0; i < mInputs.size(); i++) { 2626 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(i); 2627 if (affectedSources.indexOf(inputDesc->mInputSource) >= 0) { 2628 inputsToClose.add(inputDesc->mIoHandle); 2629 } 2630 } 2631 for (size_t i = 0; i < inputsToClose.size(); i++) { 2632 closeInput(inputsToClose[i]); 2633 } 2634} 2635 2636 2637status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2638 audio_io_handle_t *ioHandle, 2639 audio_devices_t *device) 2640{ 2641 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2642 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2643 *device = getDeviceAndMixForInputSource(AUDIO_SOURCE_HOTWORD); 2644 2645 return mSoundTriggerSessions.acquireSession(*session, *ioHandle); 2646} 2647 2648status_t AudioPolicyManager::startAudioSource(const struct audio_port_config *source __unused, 2649 const audio_attributes_t *attributes __unused, 2650 audio_io_handle_t *handle __unused) 2651{ 2652 return INVALID_OPERATION; 2653} 2654 2655status_t AudioPolicyManager::stopAudioSource(audio_io_handle_t handle __unused) 2656{ 2657 return INVALID_OPERATION; 2658} 2659 2660// ---------------------------------------------------------------------------- 2661// AudioPolicyManager 2662// ---------------------------------------------------------------------------- 2663uint32_t AudioPolicyManager::nextAudioPortGeneration() 2664{ 2665 return android_atomic_inc(&mAudioPortGeneration); 2666} 2667 2668AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2669 : 2670#ifdef AUDIO_POLICY_TEST 2671 Thread(false), 2672#endif //AUDIO_POLICY_TEST 2673 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2674 mA2dpSuspended(false), 2675 mSpeakerDrcEnabled(false), 2676 mAudioPortGeneration(1), 2677 mBeaconMuteRefCount(0), 2678 mBeaconPlayingRefCount(0), 2679 mBeaconMuted(false) 2680{ 2681 audio_policy::EngineInstance *engineInstance = audio_policy::EngineInstance::getInstance(); 2682 if (!engineInstance) { 2683 ALOGE("%s: Could not get an instance of policy engine", __FUNCTION__); 2684 return; 2685 } 2686 // Retrieve the Policy Manager Interface 2687 mEngine = engineInstance->queryInterface<AudioPolicyManagerInterface>(); 2688 if (mEngine == NULL) { 2689 ALOGE("%s: Failed to get Policy Engine Interface", __FUNCTION__); 2690 return; 2691 } 2692 mEngine->setObserver(this); 2693 status_t status = mEngine->initCheck(); 2694 ALOG_ASSERT(status == NO_ERROR, "Policy engine not initialized(err=%d)", status); 2695 2696 mUidCached = getuid(); 2697 mpClientInterface = clientInterface; 2698 2699 mDefaultOutputDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_SPEAKER); 2700 if (ConfigParsingUtils::loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE, 2701 mHwModules, mAvailableInputDevices, mAvailableOutputDevices, 2702 mDefaultOutputDevice, mSpeakerDrcEnabled) != NO_ERROR) { 2703 if (ConfigParsingUtils::loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE, 2704 mHwModules, mAvailableInputDevices, mAvailableOutputDevices, 2705 mDefaultOutputDevice, mSpeakerDrcEnabled) != NO_ERROR) { 2706 ALOGE("could not load audio policy configuration file, setting defaults"); 2707 defaultAudioPolicyConfig(); 2708 } 2709 } 2710 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2711 2712 // must be done after reading the policy (since conditionned by Speaker Drc Enabling) 2713 mEngine->initializeVolumeCurves(mSpeakerDrcEnabled); 2714 2715 // open all output streams needed to access attached devices 2716 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2717 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2718 for (size_t i = 0; i < mHwModules.size(); i++) { 2719 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2720 if (mHwModules[i]->mHandle == 0) { 2721 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2722 continue; 2723 } 2724 // open all output streams needed to access attached devices 2725 // except for direct output streams that are only opened when they are actually 2726 // required by an app. 2727 // This also validates mAvailableOutputDevices list 2728 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2729 { 2730 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2731 2732 if (outProfile->mSupportedDevices.isEmpty()) { 2733 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2734 continue; 2735 } 2736 2737 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 2738 continue; 2739 } 2740 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 2741 if ((profileType & mDefaultOutputDevice->type()) != AUDIO_DEVICE_NONE) { 2742 profileType = mDefaultOutputDevice->type(); 2743 } else { 2744 // chose first device present in mSupportedDevices also part of 2745 // outputDeviceTypes 2746 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2747 profileType = outProfile->mSupportedDevices[k]->type(); 2748 if ((profileType & outputDeviceTypes) != 0) { 2749 break; 2750 } 2751 } 2752 } 2753 if ((profileType & outputDeviceTypes) == 0) { 2754 continue; 2755 } 2756 sp<SwAudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(outProfile, 2757 mpClientInterface); 2758 2759 outputDesc->mDevice = profileType; 2760 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2761 config.sample_rate = outputDesc->mSamplingRate; 2762 config.channel_mask = outputDesc->mChannelMask; 2763 config.format = outputDesc->mFormat; 2764 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2765 status_t status = mpClientInterface->openOutput(outProfile->getModuleHandle(), 2766 &output, 2767 &config, 2768 &outputDesc->mDevice, 2769 String8(""), 2770 &outputDesc->mLatency, 2771 outputDesc->mFlags); 2772 2773 if (status != NO_ERROR) { 2774 ALOGW("Cannot open output stream for device %08x on hw module %s", 2775 outputDesc->mDevice, 2776 mHwModules[i]->mName); 2777 } else { 2778 outputDesc->mSamplingRate = config.sample_rate; 2779 outputDesc->mChannelMask = config.channel_mask; 2780 outputDesc->mFormat = config.format; 2781 2782 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2783 audio_devices_t type = outProfile->mSupportedDevices[k]->type(); 2784 ssize_t index = 2785 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2786 // give a valid ID to an attached device once confirmed it is reachable 2787 if (index >= 0 && !mAvailableOutputDevices[index]->isAttached()) { 2788 mAvailableOutputDevices[index]->attach(mHwModules[i]); 2789 } 2790 } 2791 if (mPrimaryOutput == 0 && 2792 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2793 mPrimaryOutput = outputDesc; 2794 } 2795 addOutput(output, outputDesc); 2796 setOutputDevice(outputDesc, 2797 outputDesc->mDevice, 2798 true); 2799 } 2800 } 2801 // open input streams needed to access attached devices to validate 2802 // mAvailableInputDevices list 2803 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2804 { 2805 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2806 2807 if (inProfile->mSupportedDevices.isEmpty()) { 2808 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2809 continue; 2810 } 2811 // chose first device present in mSupportedDevices also part of 2812 // inputDeviceTypes 2813 audio_devices_t profileType = AUDIO_DEVICE_NONE; 2814 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2815 profileType = inProfile->mSupportedDevices[k]->type(); 2816 if (profileType & inputDeviceTypes) { 2817 break; 2818 } 2819 } 2820 if ((profileType & inputDeviceTypes) == 0) { 2821 continue; 2822 } 2823 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2824 2825 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2826 inputDesc->mDevice = profileType; 2827 2828 // find the address 2829 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 2830 // the inputs vector must be of size 1, but we don't want to crash here 2831 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 2832 : String8(""); 2833 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 2834 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 2835 2836 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2837 config.sample_rate = inputDesc->mSamplingRate; 2838 config.channel_mask = inputDesc->mChannelMask; 2839 config.format = inputDesc->mFormat; 2840 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 2841 status_t status = mpClientInterface->openInput(inProfile->getModuleHandle(), 2842 &input, 2843 &config, 2844 &inputDesc->mDevice, 2845 address, 2846 AUDIO_SOURCE_MIC, 2847 AUDIO_INPUT_FLAG_NONE); 2848 2849 if (status == NO_ERROR) { 2850 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2851 audio_devices_t type = inProfile->mSupportedDevices[k]->type(); 2852 ssize_t index = 2853 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2854 // give a valid ID to an attached device once confirmed it is reachable 2855 if (index >= 0 && !mAvailableInputDevices[index]->isAttached()) { 2856 mAvailableInputDevices[index]->attach(mHwModules[i]); 2857 } 2858 } 2859 mpClientInterface->closeInput(input); 2860 } else { 2861 ALOGW("Cannot open input stream for device %08x on hw module %s", 2862 inputDesc->mDevice, 2863 mHwModules[i]->mName); 2864 } 2865 } 2866 } 2867 // make sure all attached devices have been allocated a unique ID 2868 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2869 if (!mAvailableOutputDevices[i]->isAttached()) { 2870 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->type()); 2871 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2872 continue; 2873 } 2874 // The device is now validated and can be appended to the available devices of the engine 2875 mEngine->setDeviceConnectionState(mAvailableOutputDevices[i], 2876 AUDIO_POLICY_DEVICE_STATE_AVAILABLE); 2877 i++; 2878 } 2879 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2880 if (!mAvailableInputDevices[i]->isAttached()) { 2881 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->type()); 2882 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2883 continue; 2884 } 2885 // The device is now validated and can be appended to the available devices of the engine 2886 mEngine->setDeviceConnectionState(mAvailableInputDevices[i], 2887 AUDIO_POLICY_DEVICE_STATE_AVAILABLE); 2888 i++; 2889 } 2890 // make sure default device is reachable 2891 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2892 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->type()); 2893 } 2894 2895 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2896 2897 updateDevicesAndOutputs(); 2898 2899#ifdef AUDIO_POLICY_TEST 2900 if (mPrimaryOutput != 0) { 2901 AudioParameter outputCmd = AudioParameter(); 2902 outputCmd.addInt(String8("set_id"), 0); 2903 mpClientInterface->setParameters(mPrimaryOutput->mIoHandle, outputCmd.toString()); 2904 2905 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2906 mTestSamplingRate = 44100; 2907 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2908 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2909 mTestLatencyMs = 0; 2910 mCurOutput = 0; 2911 mDirectOutput = false; 2912 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2913 mTestOutputs[i] = 0; 2914 } 2915 2916 const size_t SIZE = 256; 2917 char buffer[SIZE]; 2918 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2919 run(buffer, ANDROID_PRIORITY_AUDIO); 2920 } 2921#endif //AUDIO_POLICY_TEST 2922} 2923 2924AudioPolicyManager::~AudioPolicyManager() 2925{ 2926#ifdef AUDIO_POLICY_TEST 2927 exit(); 2928#endif //AUDIO_POLICY_TEST 2929 for (size_t i = 0; i < mOutputs.size(); i++) { 2930 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2931 } 2932 for (size_t i = 0; i < mInputs.size(); i++) { 2933 mpClientInterface->closeInput(mInputs.keyAt(i)); 2934 } 2935 mAvailableOutputDevices.clear(); 2936 mAvailableInputDevices.clear(); 2937 mOutputs.clear(); 2938 mInputs.clear(); 2939 mHwModules.clear(); 2940} 2941 2942status_t AudioPolicyManager::initCheck() 2943{ 2944 return hasPrimaryOutput() ? NO_ERROR : NO_INIT; 2945} 2946 2947#ifdef AUDIO_POLICY_TEST 2948bool AudioPolicyManager::threadLoop() 2949{ 2950 ALOGV("entering threadLoop()"); 2951 while (!exitPending()) 2952 { 2953 String8 command; 2954 int valueInt; 2955 String8 value; 2956 2957 Mutex::Autolock _l(mLock); 2958 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2959 2960 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2961 AudioParameter param = AudioParameter(command); 2962 2963 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2964 valueInt != 0) { 2965 ALOGV("Test command %s received", command.string()); 2966 String8 target; 2967 if (param.get(String8("target"), target) != NO_ERROR) { 2968 target = "Manager"; 2969 } 2970 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2971 param.remove(String8("test_cmd_policy_output")); 2972 mCurOutput = valueInt; 2973 } 2974 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2975 param.remove(String8("test_cmd_policy_direct")); 2976 if (value == "false") { 2977 mDirectOutput = false; 2978 } else if (value == "true") { 2979 mDirectOutput = true; 2980 } 2981 } 2982 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2983 param.remove(String8("test_cmd_policy_input")); 2984 mTestInput = valueInt; 2985 } 2986 2987 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2988 param.remove(String8("test_cmd_policy_format")); 2989 int format = AUDIO_FORMAT_INVALID; 2990 if (value == "PCM 16 bits") { 2991 format = AUDIO_FORMAT_PCM_16_BIT; 2992 } else if (value == "PCM 8 bits") { 2993 format = AUDIO_FORMAT_PCM_8_BIT; 2994 } else if (value == "Compressed MP3") { 2995 format = AUDIO_FORMAT_MP3; 2996 } 2997 if (format != AUDIO_FORMAT_INVALID) { 2998 if (target == "Manager") { 2999 mTestFormat = format; 3000 } else if (mTestOutputs[mCurOutput] != 0) { 3001 AudioParameter outputParam = AudioParameter(); 3002 outputParam.addInt(String8("format"), format); 3003 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3004 } 3005 } 3006 } 3007 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3008 param.remove(String8("test_cmd_policy_channels")); 3009 int channels = 0; 3010 3011 if (value == "Channels Stereo") { 3012 channels = AUDIO_CHANNEL_OUT_STEREO; 3013 } else if (value == "Channels Mono") { 3014 channels = AUDIO_CHANNEL_OUT_MONO; 3015 } 3016 if (channels != 0) { 3017 if (target == "Manager") { 3018 mTestChannels = channels; 3019 } else if (mTestOutputs[mCurOutput] != 0) { 3020 AudioParameter outputParam = AudioParameter(); 3021 outputParam.addInt(String8("channels"), channels); 3022 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3023 } 3024 } 3025 } 3026 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3027 param.remove(String8("test_cmd_policy_sampleRate")); 3028 if (valueInt >= 0 && valueInt <= 96000) { 3029 int samplingRate = valueInt; 3030 if (target == "Manager") { 3031 mTestSamplingRate = samplingRate; 3032 } else if (mTestOutputs[mCurOutput] != 0) { 3033 AudioParameter outputParam = AudioParameter(); 3034 outputParam.addInt(String8("sampling_rate"), samplingRate); 3035 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3036 } 3037 } 3038 } 3039 3040 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3041 param.remove(String8("test_cmd_policy_reopen")); 3042 3043 mpClientInterface->closeOutput(mpClientInterface->closeOutput(mPrimaryOutput);); 3044 3045 audio_module_handle_t moduleHandle = mPrimaryOutput->getModuleHandle(); 3046 3047 removeOutput(mPrimaryOutput->mIoHandle); 3048 sp<SwAudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL, 3049 mpClientInterface); 3050 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3051 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3052 config.sample_rate = outputDesc->mSamplingRate; 3053 config.channel_mask = outputDesc->mChannelMask; 3054 config.format = outputDesc->mFormat; 3055 audio_io_handle_t handle; 3056 status_t status = mpClientInterface->openOutput(moduleHandle, 3057 &handle, 3058 &config, 3059 &outputDesc->mDevice, 3060 String8(""), 3061 &outputDesc->mLatency, 3062 outputDesc->mFlags); 3063 if (status != NO_ERROR) { 3064 ALOGE("Failed to reopen hardware output stream, " 3065 "samplingRate: %d, format %d, channels %d", 3066 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3067 } else { 3068 outputDesc->mSamplingRate = config.sample_rate; 3069 outputDesc->mChannelMask = config.channel_mask; 3070 outputDesc->mFormat = config.format; 3071 mPrimaryOutput = outputDesc; 3072 AudioParameter outputCmd = AudioParameter(); 3073 outputCmd.addInt(String8("set_id"), 0); 3074 mpClientInterface->setParameters(handle, outputCmd.toString()); 3075 addOutput(handle, outputDesc); 3076 } 3077 } 3078 3079 3080 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3081 } 3082 } 3083 return false; 3084} 3085 3086void AudioPolicyManager::exit() 3087{ 3088 { 3089 AutoMutex _l(mLock); 3090 requestExit(); 3091 mWaitWorkCV.signal(); 3092 } 3093 requestExitAndWait(); 3094} 3095 3096int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3097{ 3098 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3099 if (output == mTestOutputs[i]) return i; 3100 } 3101 return 0; 3102} 3103#endif //AUDIO_POLICY_TEST 3104 3105// --- 3106 3107void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<SwAudioOutputDescriptor> outputDesc) 3108{ 3109 outputDesc->setIoHandle(output); 3110 mOutputs.add(output, outputDesc); 3111 nextAudioPortGeneration(); 3112} 3113 3114void AudioPolicyManager::removeOutput(audio_io_handle_t output) 3115{ 3116 mOutputs.removeItem(output); 3117} 3118 3119void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3120{ 3121 inputDesc->setIoHandle(input); 3122 mInputs.add(input, inputDesc); 3123 nextAudioPortGeneration(); 3124} 3125 3126void AudioPolicyManager::findIoHandlesByAddress(sp<SwAudioOutputDescriptor> desc /*in*/, 3127 const audio_devices_t device /*in*/, 3128 const String8 address /*in*/, 3129 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3130 sp<DeviceDescriptor> devDesc = 3131 desc->mProfile->mSupportedDevices.getDevice(device, address); 3132 if (devDesc != 0) { 3133 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3134 desc->mIoHandle, address.string()); 3135 outputs.add(desc->mIoHandle); 3136 } 3137} 3138 3139status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3140 audio_policy_dev_state_t state, 3141 SortedVector<audio_io_handle_t>& outputs, 3142 const String8 address) 3143{ 3144 audio_devices_t device = devDesc->type(); 3145 sp<SwAudioOutputDescriptor> desc; 3146 3147 if (audio_device_is_digital(device)) { 3148 // erase all current sample rates, formats and channel masks 3149 devDesc->clearCapabilities(); 3150 } 3151 3152 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3153 // first list already open outputs that can be routed to this device 3154 for (size_t i = 0; i < mOutputs.size(); i++) { 3155 desc = mOutputs.valueAt(i); 3156 if (!desc->isDuplicated() && (desc->supportedDevices() & device)) { 3157 if (!device_distinguishes_on_address(device)) { 3158 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3159 outputs.add(mOutputs.keyAt(i)); 3160 } else { 3161 ALOGV(" checking address match due to device 0x%x", device); 3162 findIoHandlesByAddress(desc, device, address, outputs); 3163 } 3164 } 3165 } 3166 // then look for output profiles that can be routed to this device 3167 SortedVector< sp<IOProfile> > profiles; 3168 for (size_t i = 0; i < mHwModules.size(); i++) 3169 { 3170 if (mHwModules[i]->mHandle == 0) { 3171 continue; 3172 } 3173 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3174 { 3175 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3176 if (profile->mSupportedDevices.types() & device) { 3177 if (!device_distinguishes_on_address(device) || 3178 address == profile->mSupportedDevices[0]->mAddress) { 3179 profiles.add(profile); 3180 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3181 } 3182 } 3183 } 3184 } 3185 3186 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3187 3188 if (profiles.isEmpty() && outputs.isEmpty()) { 3189 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3190 return BAD_VALUE; 3191 } 3192 3193 // open outputs for matching profiles if needed. Direct outputs are also opened to 3194 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3195 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3196 sp<IOProfile> profile = profiles[profile_index]; 3197 3198 // nothing to do if one output is already opened for this profile 3199 size_t j; 3200 for (j = 0; j < outputs.size(); j++) { 3201 desc = mOutputs.valueFor(outputs.itemAt(j)); 3202 if (!desc->isDuplicated() && desc->mProfile == profile) { 3203 // matching profile: save the sample rates, format and channel masks supported 3204 // by the profile in our device descriptor 3205 if (audio_device_is_digital(device)) { 3206 devDesc->importAudioPort(profile); 3207 } 3208 break; 3209 } 3210 } 3211 if (j != outputs.size()) { 3212 continue; 3213 } 3214 3215 ALOGV("opening output for device %08x with params %s profile %p", 3216 device, address.string(), profile.get()); 3217 desc = new SwAudioOutputDescriptor(profile, mpClientInterface); 3218 desc->mDevice = device; 3219 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3220 config.sample_rate = desc->mSamplingRate; 3221 config.channel_mask = desc->mChannelMask; 3222 config.format = desc->mFormat; 3223 config.offload_info.sample_rate = desc->mSamplingRate; 3224 config.offload_info.channel_mask = desc->mChannelMask; 3225 config.offload_info.format = desc->mFormat; 3226 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3227 status_t status = mpClientInterface->openOutput(profile->getModuleHandle(), 3228 &output, 3229 &config, 3230 &desc->mDevice, 3231 address, 3232 &desc->mLatency, 3233 desc->mFlags); 3234 if (status == NO_ERROR) { 3235 desc->mSamplingRate = config.sample_rate; 3236 desc->mChannelMask = config.channel_mask; 3237 desc->mFormat = config.format; 3238 3239 // Here is where the out_set_parameters() for card & device gets called 3240 if (!address.isEmpty()) { 3241 char *param = audio_device_address_to_parameter(device, address); 3242 mpClientInterface->setParameters(output, String8(param)); 3243 free(param); 3244 } 3245 3246 // Here is where we step through and resolve any "dynamic" fields 3247 String8 reply; 3248 char *value; 3249 if (profile->mSamplingRates[0] == 0) { 3250 reply = mpClientInterface->getParameters(output, 3251 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3252 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3253 reply.string()); 3254 value = strpbrk((char *)reply.string(), "="); 3255 if (value != NULL) { 3256 profile->loadSamplingRates(value + 1); 3257 } 3258 } 3259 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3260 reply = mpClientInterface->getParameters(output, 3261 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3262 ALOGV("checkOutputsForDevice() supported formats %s", 3263 reply.string()); 3264 value = strpbrk((char *)reply.string(), "="); 3265 if (value != NULL) { 3266 profile->loadFormats(value + 1); 3267 } 3268 } 3269 if (profile->mChannelMasks[0] == 0) { 3270 reply = mpClientInterface->getParameters(output, 3271 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3272 ALOGV("checkOutputsForDevice() supported channel masks %s", 3273 reply.string()); 3274 value = strpbrk((char *)reply.string(), "="); 3275 if (value != NULL) { 3276 profile->loadOutChannels(value + 1); 3277 } 3278 } 3279 if (((profile->mSamplingRates[0] == 0) && 3280 (profile->mSamplingRates.size() < 2)) || 3281 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3282 (profile->mFormats.size() < 2)) || 3283 ((profile->mChannelMasks[0] == 0) && 3284 (profile->mChannelMasks.size() < 2))) { 3285 ALOGW("checkOutputsForDevice() missing param"); 3286 mpClientInterface->closeOutput(output); 3287 output = AUDIO_IO_HANDLE_NONE; 3288 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3289 profile->mChannelMasks[0] == 0) { 3290 mpClientInterface->closeOutput(output); 3291 config.sample_rate = profile->pickSamplingRate(); 3292 config.channel_mask = profile->pickChannelMask(); 3293 config.format = profile->pickFormat(); 3294 config.offload_info.sample_rate = config.sample_rate; 3295 config.offload_info.channel_mask = config.channel_mask; 3296 config.offload_info.format = config.format; 3297 status = mpClientInterface->openOutput(profile->getModuleHandle(), 3298 &output, 3299 &config, 3300 &desc->mDevice, 3301 address, 3302 &desc->mLatency, 3303 desc->mFlags); 3304 if (status == NO_ERROR) { 3305 desc->mSamplingRate = config.sample_rate; 3306 desc->mChannelMask = config.channel_mask; 3307 desc->mFormat = config.format; 3308 } else { 3309 output = AUDIO_IO_HANDLE_NONE; 3310 } 3311 } 3312 3313 if (output != AUDIO_IO_HANDLE_NONE) { 3314 addOutput(output, desc); 3315 if (device_distinguishes_on_address(device) && address != "0") { 3316 sp<AudioPolicyMix> policyMix; 3317 if (mPolicyMixes.getAudioPolicyMix(address, policyMix) != NO_ERROR) { 3318 ALOGE("checkOutputsForDevice() cannot find policy for address %s", 3319 address.string()); 3320 } 3321 policyMix->setOutput(desc); 3322 desc->mPolicyMix = policyMix->getMix(); 3323 3324 } else if (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 3325 hasPrimaryOutput()) { 3326 // no duplicated output for direct outputs and 3327 // outputs used by dynamic policy mixes 3328 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3329 3330 // set initial stream volume for device 3331 applyStreamVolumes(desc, device, 0, true); 3332 3333 //TODO: configure audio effect output stage here 3334 3335 // open a duplicating output thread for the new output and the primary output 3336 duplicatedOutput = 3337 mpClientInterface->openDuplicateOutput(output, 3338 mPrimaryOutput->mIoHandle); 3339 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3340 // add duplicated output descriptor 3341 sp<SwAudioOutputDescriptor> dupOutputDesc = 3342 new SwAudioOutputDescriptor(NULL, mpClientInterface); 3343 dupOutputDesc->mOutput1 = mPrimaryOutput; 3344 dupOutputDesc->mOutput2 = desc; 3345 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3346 dupOutputDesc->mFormat = desc->mFormat; 3347 dupOutputDesc->mChannelMask = desc->mChannelMask; 3348 dupOutputDesc->mLatency = desc->mLatency; 3349 addOutput(duplicatedOutput, dupOutputDesc); 3350 applyStreamVolumes(dupOutputDesc, device, 0, true); 3351 } else { 3352 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3353 mPrimaryOutput->mIoHandle, output); 3354 mpClientInterface->closeOutput(output); 3355 removeOutput(output); 3356 nextAudioPortGeneration(); 3357 output = AUDIO_IO_HANDLE_NONE; 3358 } 3359 } 3360 } 3361 } else { 3362 output = AUDIO_IO_HANDLE_NONE; 3363 } 3364 if (output == AUDIO_IO_HANDLE_NONE) { 3365 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3366 profiles.removeAt(profile_index); 3367 profile_index--; 3368 } else { 3369 outputs.add(output); 3370 // Load digital format info only for digital devices 3371 if (audio_device_is_digital(device)) { 3372 devDesc->importAudioPort(profile); 3373 } 3374 3375 if (device_distinguishes_on_address(device)) { 3376 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3377 device, address.string()); 3378 setOutputDevice(desc, device, true/*force*/, 0/*delay*/, 3379 NULL/*patch handle*/, address.string()); 3380 } 3381 ALOGV("checkOutputsForDevice(): adding output %d", output); 3382 } 3383 } 3384 3385 if (profiles.isEmpty()) { 3386 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3387 return BAD_VALUE; 3388 } 3389 } else { // Disconnect 3390 // check if one opened output is not needed any more after disconnecting one device 3391 for (size_t i = 0; i < mOutputs.size(); i++) { 3392 desc = mOutputs.valueAt(i); 3393 if (!desc->isDuplicated()) { 3394 // exact match on device 3395 if (device_distinguishes_on_address(device) && 3396 (desc->supportedDevices() == device)) { 3397 findIoHandlesByAddress(desc, device, address, outputs); 3398 } else if (!(desc->supportedDevices() & mAvailableOutputDevices.types())) { 3399 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3400 mOutputs.keyAt(i)); 3401 outputs.add(mOutputs.keyAt(i)); 3402 } 3403 } 3404 } 3405 // Clear any profiles associated with the disconnected device. 3406 for (size_t i = 0; i < mHwModules.size(); i++) 3407 { 3408 if (mHwModules[i]->mHandle == 0) { 3409 continue; 3410 } 3411 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3412 { 3413 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3414 if (profile->mSupportedDevices.types() & device) { 3415 ALOGV("checkOutputsForDevice(): " 3416 "clearing direct output profile %zu on module %zu", j, i); 3417 if (profile->mSamplingRates[0] == 0) { 3418 profile->mSamplingRates.clear(); 3419 profile->mSamplingRates.add(0); 3420 } 3421 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3422 profile->mFormats.clear(); 3423 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3424 } 3425 if (profile->mChannelMasks[0] == 0) { 3426 profile->mChannelMasks.clear(); 3427 profile->mChannelMasks.add(0); 3428 } 3429 } 3430 } 3431 } 3432 } 3433 return NO_ERROR; 3434} 3435 3436status_t AudioPolicyManager::checkInputsForDevice(const sp<DeviceDescriptor> devDesc, 3437 audio_policy_dev_state_t state, 3438 SortedVector<audio_io_handle_t>& inputs, 3439 const String8 address) 3440{ 3441 audio_devices_t device = devDesc->type(); 3442 sp<AudioInputDescriptor> desc; 3443 3444 if (audio_device_is_digital(device)) { 3445 // erase all current sample rates, formats and channel masks 3446 devDesc->clearCapabilities(); 3447 } 3448 3449 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3450 // first list already open inputs that can be routed to this device 3451 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3452 desc = mInputs.valueAt(input_index); 3453 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3454 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3455 inputs.add(mInputs.keyAt(input_index)); 3456 } 3457 } 3458 3459 // then look for input profiles that can be routed to this device 3460 SortedVector< sp<IOProfile> > profiles; 3461 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3462 { 3463 if (mHwModules[module_idx]->mHandle == 0) { 3464 continue; 3465 } 3466 for (size_t profile_index = 0; 3467 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3468 profile_index++) 3469 { 3470 sp<IOProfile> profile = mHwModules[module_idx]->mInputProfiles[profile_index]; 3471 3472 if (profile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3473 if (!device_distinguishes_on_address(device) || 3474 address == profile->mSupportedDevices[0]->mAddress) { 3475 profiles.add(profile); 3476 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3477 profile_index, module_idx); 3478 } 3479 } 3480 } 3481 } 3482 3483 if (profiles.isEmpty() && inputs.isEmpty()) { 3484 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3485 return BAD_VALUE; 3486 } 3487 3488 // open inputs for matching profiles if needed. Direct inputs are also opened to 3489 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3490 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3491 3492 sp<IOProfile> profile = profiles[profile_index]; 3493 // nothing to do if one input is already opened for this profile 3494 size_t input_index; 3495 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3496 desc = mInputs.valueAt(input_index); 3497 if (desc->mProfile == profile) { 3498 if (audio_device_is_digital(device)) { 3499 devDesc->importAudioPort(profile); 3500 } 3501 break; 3502 } 3503 } 3504 if (input_index != mInputs.size()) { 3505 continue; 3506 } 3507 3508 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3509 desc = new AudioInputDescriptor(profile); 3510 desc->mDevice = device; 3511 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3512 config.sample_rate = desc->mSamplingRate; 3513 config.channel_mask = desc->mChannelMask; 3514 config.format = desc->mFormat; 3515 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3516 status_t status = mpClientInterface->openInput(profile->getModuleHandle(), 3517 &input, 3518 &config, 3519 &desc->mDevice, 3520 address, 3521 AUDIO_SOURCE_MIC, 3522 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3523 3524 if (status == NO_ERROR) { 3525 desc->mSamplingRate = config.sample_rate; 3526 desc->mChannelMask = config.channel_mask; 3527 desc->mFormat = config.format; 3528 3529 if (!address.isEmpty()) { 3530 char *param = audio_device_address_to_parameter(device, address); 3531 mpClientInterface->setParameters(input, String8(param)); 3532 free(param); 3533 } 3534 3535 // Here is where we step through and resolve any "dynamic" fields 3536 String8 reply; 3537 char *value; 3538 if (profile->mSamplingRates[0] == 0) { 3539 reply = mpClientInterface->getParameters(input, 3540 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3541 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3542 reply.string()); 3543 value = strpbrk((char *)reply.string(), "="); 3544 if (value != NULL) { 3545 profile->loadSamplingRates(value + 1); 3546 } 3547 } 3548 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3549 reply = mpClientInterface->getParameters(input, 3550 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3551 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3552 value = strpbrk((char *)reply.string(), "="); 3553 if (value != NULL) { 3554 profile->loadFormats(value + 1); 3555 } 3556 } 3557 if (profile->mChannelMasks[0] == 0) { 3558 reply = mpClientInterface->getParameters(input, 3559 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3560 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3561 reply.string()); 3562 value = strpbrk((char *)reply.string(), "="); 3563 if (value != NULL) { 3564 profile->loadInChannels(value + 1); 3565 } 3566 } 3567 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3568 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3569 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3570 ALOGW("checkInputsForDevice() direct input missing param"); 3571 mpClientInterface->closeInput(input); 3572 input = AUDIO_IO_HANDLE_NONE; 3573 } 3574 3575 if (input != 0) { 3576 addInput(input, desc); 3577 } 3578 } // endif input != 0 3579 3580 if (input == AUDIO_IO_HANDLE_NONE) { 3581 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3582 profiles.removeAt(profile_index); 3583 profile_index--; 3584 } else { 3585 inputs.add(input); 3586 if (audio_device_is_digital(device)) { 3587 devDesc->importAudioPort(profile); 3588 } 3589 ALOGV("checkInputsForDevice(): adding input %d", input); 3590 } 3591 } // end scan profiles 3592 3593 if (profiles.isEmpty()) { 3594 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3595 return BAD_VALUE; 3596 } 3597 } else { 3598 // Disconnect 3599 // check if one opened input is not needed any more after disconnecting one device 3600 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3601 desc = mInputs.valueAt(input_index); 3602 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3603 ~AUDIO_DEVICE_BIT_IN)) { 3604 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3605 mInputs.keyAt(input_index)); 3606 inputs.add(mInputs.keyAt(input_index)); 3607 } 3608 } 3609 // Clear any profiles associated with the disconnected device. 3610 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3611 if (mHwModules[module_index]->mHandle == 0) { 3612 continue; 3613 } 3614 for (size_t profile_index = 0; 3615 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3616 profile_index++) { 3617 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3618 if (profile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3619 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3620 profile_index, module_index); 3621 if (profile->mSamplingRates[0] == 0) { 3622 profile->mSamplingRates.clear(); 3623 profile->mSamplingRates.add(0); 3624 } 3625 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3626 profile->mFormats.clear(); 3627 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3628 } 3629 if (profile->mChannelMasks[0] == 0) { 3630 profile->mChannelMasks.clear(); 3631 profile->mChannelMasks.add(0); 3632 } 3633 } 3634 } 3635 } 3636 } // end disconnect 3637 3638 return NO_ERROR; 3639} 3640 3641 3642void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3643{ 3644 ALOGV("closeOutput(%d)", output); 3645 3646 sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3647 if (outputDesc == NULL) { 3648 ALOGW("closeOutput() unknown output %d", output); 3649 return; 3650 } 3651 mPolicyMixes.closeOutput(outputDesc); 3652 3653 // look for duplicated outputs connected to the output being removed. 3654 for (size_t i = 0; i < mOutputs.size(); i++) { 3655 sp<SwAudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3656 if (dupOutputDesc->isDuplicated() && 3657 (dupOutputDesc->mOutput1 == outputDesc || 3658 dupOutputDesc->mOutput2 == outputDesc)) { 3659 sp<AudioOutputDescriptor> outputDesc2; 3660 if (dupOutputDesc->mOutput1 == outputDesc) { 3661 outputDesc2 = dupOutputDesc->mOutput2; 3662 } else { 3663 outputDesc2 = dupOutputDesc->mOutput1; 3664 } 3665 // As all active tracks on duplicated output will be deleted, 3666 // and as they were also referenced on the other output, the reference 3667 // count for their stream type must be adjusted accordingly on 3668 // the other output. 3669 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3670 int refCount = dupOutputDesc->mRefCount[j]; 3671 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3672 } 3673 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3674 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3675 3676 mpClientInterface->closeOutput(duplicatedOutput); 3677 removeOutput(duplicatedOutput); 3678 } 3679 } 3680 3681 nextAudioPortGeneration(); 3682 3683 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3684 if (index >= 0) { 3685 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3686 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3687 mAudioPatches.removeItemsAt(index); 3688 mpClientInterface->onAudioPatchListUpdate(); 3689 } 3690 3691 AudioParameter param; 3692 param.add(String8("closing"), String8("true")); 3693 mpClientInterface->setParameters(output, param.toString()); 3694 3695 mpClientInterface->closeOutput(output); 3696 removeOutput(output); 3697 mPreviousOutputs = mOutputs; 3698} 3699 3700void AudioPolicyManager::closeInput(audio_io_handle_t input) 3701{ 3702 ALOGV("closeInput(%d)", input); 3703 3704 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3705 if (inputDesc == NULL) { 3706 ALOGW("closeInput() unknown input %d", input); 3707 return; 3708 } 3709 3710 nextAudioPortGeneration(); 3711 3712 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3713 if (index >= 0) { 3714 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3715 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3716 mAudioPatches.removeItemsAt(index); 3717 mpClientInterface->onAudioPatchListUpdate(); 3718 } 3719 3720 mpClientInterface->closeInput(input); 3721 mInputs.removeItem(input); 3722} 3723 3724SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice( 3725 audio_devices_t device, 3726 SwAudioOutputCollection openOutputs) 3727{ 3728 SortedVector<audio_io_handle_t> outputs; 3729 3730 ALOGVV("getOutputsForDevice() device %04x", device); 3731 for (size_t i = 0; i < openOutputs.size(); i++) { 3732 ALOGVV("output %d isDuplicated=%d device=%04x", 3733 i, openOutputs.valueAt(i)->isDuplicated(), 3734 openOutputs.valueAt(i)->supportedDevices()); 3735 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3736 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3737 outputs.add(openOutputs.keyAt(i)); 3738 } 3739 } 3740 return outputs; 3741} 3742 3743bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3744 SortedVector<audio_io_handle_t>& outputs2) 3745{ 3746 if (outputs1.size() != outputs2.size()) { 3747 return false; 3748 } 3749 for (size_t i = 0; i < outputs1.size(); i++) { 3750 if (outputs1[i] != outputs2[i]) { 3751 return false; 3752 } 3753 } 3754 return true; 3755} 3756 3757void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3758{ 3759 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3760 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3761 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3762 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3763 3764 // also take into account external policy-related changes: add all outputs which are 3765 // associated with policies in the "before" and "after" output vectors 3766 ALOGVV("checkOutputForStrategy(): policy related outputs"); 3767 for (size_t i = 0 ; i < mPreviousOutputs.size() ; i++) { 3768 const sp<SwAudioOutputDescriptor> desc = mPreviousOutputs.valueAt(i); 3769 if (desc != 0 && desc->mPolicyMix != NULL) { 3770 srcOutputs.add(desc->mIoHandle); 3771 ALOGVV(" previous outputs: adding %d", desc->mIoHandle); 3772 } 3773 } 3774 for (size_t i = 0 ; i < mOutputs.size() ; i++) { 3775 const sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 3776 if (desc != 0 && desc->mPolicyMix != NULL) { 3777 dstOutputs.add(desc->mIoHandle); 3778 ALOGVV(" new outputs: adding %d", desc->mIoHandle); 3779 } 3780 } 3781 3782 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3783 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3784 strategy, srcOutputs[0], dstOutputs[0]); 3785 // mute strategy while moving tracks from one output to another 3786 for (size_t i = 0; i < srcOutputs.size(); i++) { 3787 sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3788 if (isStrategyActive(desc, strategy)) { 3789 setStrategyMute(strategy, true, desc); 3790 setStrategyMute(strategy, false, desc, MUTE_TIME_MS, newDevice); 3791 } 3792 } 3793 3794 // Move effects associated to this strategy from previous output to new output 3795 if (strategy == STRATEGY_MEDIA) { 3796 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3797 SortedVector<audio_io_handle_t> moved; 3798 for (size_t i = 0; i < mEffects.size(); i++) { 3799 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3800 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3801 effectDesc->mIo != fxOutput) { 3802 if (moved.indexOf(effectDesc->mIo) < 0) { 3803 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3804 mEffects.keyAt(i), fxOutput); 3805 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3806 fxOutput); 3807 moved.add(effectDesc->mIo); 3808 } 3809 effectDesc->mIo = fxOutput; 3810 } 3811 } 3812 } 3813 // Move tracks associated to this strategy from previous output to new output 3814 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3815 if (i == AUDIO_STREAM_PATCH) { 3816 continue; 3817 } 3818 if (getStrategy((audio_stream_type_t)i) == strategy) { 3819 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3820 } 3821 } 3822 } 3823} 3824 3825void AudioPolicyManager::checkOutputForAllStrategies() 3826{ 3827 if (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3828 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3829 checkOutputForStrategy(STRATEGY_PHONE); 3830 if (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3831 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3832 checkOutputForStrategy(STRATEGY_SONIFICATION); 3833 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3834 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 3835 checkOutputForStrategy(STRATEGY_MEDIA); 3836 checkOutputForStrategy(STRATEGY_DTMF); 3837 checkOutputForStrategy(STRATEGY_REROUTING); 3838} 3839 3840void AudioPolicyManager::checkA2dpSuspend() 3841{ 3842 audio_io_handle_t a2dpOutput = mOutputs.getA2dpOutput(); 3843 if (a2dpOutput == 0) { 3844 mA2dpSuspended = false; 3845 return; 3846 } 3847 3848 bool isScoConnected = 3849 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 3850 ~AUDIO_DEVICE_BIT_IN) != 0) || 3851 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 3852 // suspend A2DP output if: 3853 // (NOT already suspended) && 3854 // ((SCO device is connected && 3855 // (forced usage for communication || for record is SCO))) || 3856 // (phone state is ringing || in call) 3857 // 3858 // restore A2DP output if: 3859 // (Already suspended) && 3860 // ((SCO device is NOT connected || 3861 // (forced usage NOT for communication && NOT for record is SCO))) && 3862 // (phone state is NOT ringing && NOT in call) 3863 // 3864 if (mA2dpSuspended) { 3865 if ((!isScoConnected || 3866 ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) != AUDIO_POLICY_FORCE_BT_SCO) && 3867 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) != AUDIO_POLICY_FORCE_BT_SCO))) && 3868 ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) && 3869 (mEngine->getPhoneState() != AUDIO_MODE_RINGTONE))) { 3870 3871 mpClientInterface->restoreOutput(a2dpOutput); 3872 mA2dpSuspended = false; 3873 } 3874 } else { 3875 if ((isScoConnected && 3876 ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) == AUDIO_POLICY_FORCE_BT_SCO) || 3877 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) == AUDIO_POLICY_FORCE_BT_SCO))) || 3878 ((mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) || 3879 (mEngine->getPhoneState() == AUDIO_MODE_RINGTONE))) { 3880 3881 mpClientInterface->suspendOutput(a2dpOutput); 3882 mA2dpSuspended = true; 3883 } 3884 } 3885} 3886 3887audio_devices_t AudioPolicyManager::getNewOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, 3888 bool fromCache) 3889{ 3890 audio_devices_t device = AUDIO_DEVICE_NONE; 3891 3892 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3893 if (index >= 0) { 3894 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3895 if (patchDesc->mUid != mUidCached) { 3896 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3897 outputDesc->device(), outputDesc->mPatchHandle); 3898 return outputDesc->device(); 3899 } 3900 } 3901 3902 // check the following by order of priority to request a routing change if necessary: 3903 // 1: the strategy enforced audible is active and enforced on the output: 3904 // use device for strategy enforced audible 3905 // 2: we are in call or the strategy phone is active on the output: 3906 // use device for strategy phone 3907 // 3: the strategy for enforced audible is active but not enforced on the output: 3908 // use the device for strategy enforced audible 3909 // 4: the strategy sonification is active on the output: 3910 // use device for strategy sonification 3911 // 5: the strategy "respectful" sonification is active on the output: 3912 // use device for strategy "respectful" sonification 3913 // 6: the strategy accessibility is active on the output: 3914 // use device for strategy accessibility 3915 // 7: the strategy media is active on the output: 3916 // use device for strategy media 3917 // 8: the strategy DTMF is active on the output: 3918 // use device for strategy DTMF 3919 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 3920 // use device for strategy t-t-s 3921 if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE) && 3922 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 3923 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3924 } else if (isInCall() || 3925 isStrategyActive(outputDesc, STRATEGY_PHONE)) { 3926 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3927 } else if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE)) { 3928 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3929 } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION)) { 3930 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3931 } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION_RESPECTFUL)) { 3932 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3933 } else if (isStrategyActive(outputDesc, STRATEGY_ACCESSIBILITY)) { 3934 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 3935 } else if (isStrategyActive(outputDesc, STRATEGY_MEDIA)) { 3936 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3937 } else if (isStrategyActive(outputDesc, STRATEGY_DTMF)) { 3938 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3939 } else if (isStrategyActive(outputDesc, STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 3940 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 3941 } else if (isStrategyActive(outputDesc, STRATEGY_REROUTING)) { 3942 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 3943 } 3944 3945 ALOGV("getNewOutputDevice() selected device %x", device); 3946 return device; 3947} 3948 3949audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3950{ 3951 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3952 3953 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3954 if (index >= 0) { 3955 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3956 if (patchDesc->mUid != mUidCached) { 3957 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3958 inputDesc->mDevice, inputDesc->mPatchHandle); 3959 return inputDesc->mDevice; 3960 } 3961 } 3962 3963 audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->mInputSource); 3964 3965 return device; 3966} 3967 3968uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3969 return (uint32_t)getStrategy(stream); 3970} 3971 3972audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3973 // By checking the range of stream before calling getStrategy, we avoid 3974 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3975 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3976 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 3977 return AUDIO_DEVICE_NONE; 3978 } 3979 audio_devices_t devices; 3980 routing_strategy strategy = getStrategy(stream); 3981 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3982 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3983 for (size_t i = 0; i < outputs.size(); i++) { 3984 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3985 if (isStrategyActive(outputDesc, strategy)) { 3986 devices = outputDesc->device(); 3987 break; 3988 } 3989 } 3990 3991 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 3992 and doesn't really need to.*/ 3993 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 3994 devices |= AUDIO_DEVICE_OUT_SPEAKER; 3995 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 3996 } 3997 3998 return devices; 3999} 4000 4001routing_strategy AudioPolicyManager::getStrategy(audio_stream_type_t stream) const 4002{ 4003 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 4004 return mEngine->getStrategyForStream(stream); 4005} 4006 4007uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 4008 // flags to strategy mapping 4009 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4010 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4011 } 4012 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4013 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 4014 } 4015 // usage to strategy mapping 4016 return static_cast<uint32_t>(mEngine->getStrategyForUsage(attr->usage)); 4017} 4018 4019void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4020 switch(stream) { 4021 case AUDIO_STREAM_MUSIC: 4022 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4023 updateDevicesAndOutputs(); 4024 break; 4025 default: 4026 break; 4027 } 4028} 4029 4030uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4031 switch(event) { 4032 case STARTING_OUTPUT: 4033 mBeaconMuteRefCount++; 4034 break; 4035 case STOPPING_OUTPUT: 4036 if (mBeaconMuteRefCount > 0) { 4037 mBeaconMuteRefCount--; 4038 } 4039 break; 4040 case STARTING_BEACON: 4041 mBeaconPlayingRefCount++; 4042 break; 4043 case STOPPING_BEACON: 4044 if (mBeaconPlayingRefCount > 0) { 4045 mBeaconPlayingRefCount--; 4046 } 4047 break; 4048 } 4049 4050 if (mBeaconMuteRefCount > 0) { 4051 // any playback causes beacon to be muted 4052 return setBeaconMute(true); 4053 } else { 4054 // no other playback: unmute when beacon starts playing, mute when it stops 4055 return setBeaconMute(mBeaconPlayingRefCount == 0); 4056 } 4057} 4058 4059uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4060 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4061 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4062 // keep track of muted state to avoid repeating mute/unmute operations 4063 if (mBeaconMuted != mute) { 4064 // mute/unmute AUDIO_STREAM_TTS on all outputs 4065 ALOGV("\t muting %d", mute); 4066 uint32_t maxLatency = 0; 4067 for (size_t i = 0; i < mOutputs.size(); i++) { 4068 sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i); 4069 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4070 desc, 4071 0 /*delay*/, AUDIO_DEVICE_NONE); 4072 const uint32_t latency = desc->latency() * 2; 4073 if (latency > maxLatency) { 4074 maxLatency = latency; 4075 } 4076 } 4077 mBeaconMuted = mute; 4078 return maxLatency; 4079 } 4080 return 0; 4081} 4082 4083audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4084 bool fromCache) 4085{ 4086 // Routing 4087 // see if we have an explicit route 4088 // scan the whole RouteMap, for each entry, convert the stream type to a strategy 4089 // (getStrategy(stream)). 4090 // if the strategy from the stream type in the RouteMap is the same as the argument above, 4091 // and activity count is non-zero 4092 // the device = the device from the descriptor in the RouteMap, and exit. 4093 for (size_t routeIndex = 0; routeIndex < mOutputRoutes.size(); routeIndex++) { 4094 sp<SessionRoute> route = mOutputRoutes.valueAt(routeIndex); 4095 routing_strategy strat = getStrategy(route->mStreamType); 4096 // Special case for accessibility strategy which must follow any strategy it is 4097 // currently remapped to 4098 bool strategyMatch = (strat == strategy) || 4099 ((strategy == STRATEGY_ACCESSIBILITY) && 4100 ((mEngine->getStrategyForUsage( 4101 AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY) == strat) || 4102 (strat == STRATEGY_MEDIA))); 4103 if (strategyMatch && route->isActive()) { 4104 return route->mDeviceDescriptor->type(); 4105 } 4106 } 4107 4108 if (fromCache) { 4109 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4110 strategy, mDeviceForStrategy[strategy]); 4111 return mDeviceForStrategy[strategy]; 4112 } 4113 return mEngine->getDeviceForStrategy(strategy); 4114} 4115 4116void AudioPolicyManager::updateDevicesAndOutputs() 4117{ 4118 for (int i = 0; i < NUM_STRATEGIES; i++) { 4119 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4120 } 4121 mPreviousOutputs = mOutputs; 4122} 4123 4124uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4125 audio_devices_t prevDevice, 4126 uint32_t delayMs) 4127{ 4128 // mute/unmute strategies using an incompatible device combination 4129 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4130 // if unmuting, unmute only after the specified delay 4131 if (outputDesc->isDuplicated()) { 4132 return 0; 4133 } 4134 4135 uint32_t muteWaitMs = 0; 4136 audio_devices_t device = outputDesc->device(); 4137 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4138 4139 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4140 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4141 curDevice = curDevice & outputDesc->supportedDevices(); 4142 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4143 bool doMute = false; 4144 4145 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4146 doMute = true; 4147 outputDesc->mStrategyMutedByDevice[i] = true; 4148 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4149 doMute = true; 4150 outputDesc->mStrategyMutedByDevice[i] = false; 4151 } 4152 if (doMute) { 4153 for (size_t j = 0; j < mOutputs.size(); j++) { 4154 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4155 // skip output if it does not share any device with current output 4156 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4157 == AUDIO_DEVICE_NONE) { 4158 continue; 4159 } 4160 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x)", 4161 mute ? "muting" : "unmuting", i, curDevice); 4162 setStrategyMute((routing_strategy)i, mute, desc, mute ? 0 : delayMs); 4163 if (isStrategyActive(desc, (routing_strategy)i)) { 4164 if (mute) { 4165 // FIXME: should not need to double latency if volume could be applied 4166 // immediately by the audioflinger mixer. We must account for the delay 4167 // between now and the next time the audioflinger thread for this output 4168 // will process a buffer (which corresponds to one buffer size, 4169 // usually 1/2 or 1/4 of the latency). 4170 if (muteWaitMs < desc->latency() * 2) { 4171 muteWaitMs = desc->latency() * 2; 4172 } 4173 } 4174 } 4175 } 4176 } 4177 } 4178 4179 // temporary mute output if device selection changes to avoid volume bursts due to 4180 // different per device volumes 4181 if (outputDesc->isActive() && (device != prevDevice)) { 4182 if (muteWaitMs < outputDesc->latency() * 2) { 4183 muteWaitMs = outputDesc->latency() * 2; 4184 } 4185 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4186 if (isStrategyActive(outputDesc, (routing_strategy)i)) { 4187 setStrategyMute((routing_strategy)i, true, outputDesc); 4188 // do tempMute unmute after twice the mute wait time 4189 setStrategyMute((routing_strategy)i, false, outputDesc, 4190 muteWaitMs *2, device); 4191 } 4192 } 4193 } 4194 4195 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4196 if (muteWaitMs > delayMs) { 4197 muteWaitMs -= delayMs; 4198 usleep(muteWaitMs * 1000); 4199 return muteWaitMs; 4200 } 4201 return 0; 4202} 4203 4204uint32_t AudioPolicyManager::setOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, 4205 audio_devices_t device, 4206 bool force, 4207 int delayMs, 4208 audio_patch_handle_t *patchHandle, 4209 const char* address) 4210{ 4211 ALOGV("setOutputDevice() device %04x delayMs %d", device, delayMs); 4212 AudioParameter param; 4213 uint32_t muteWaitMs; 4214 4215 if (outputDesc->isDuplicated()) { 4216 muteWaitMs = setOutputDevice(outputDesc->subOutput1(), device, force, delayMs); 4217 muteWaitMs += setOutputDevice(outputDesc->subOutput2(), device, force, delayMs); 4218 return muteWaitMs; 4219 } 4220 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4221 // output profile 4222 if ((device != AUDIO_DEVICE_NONE) && 4223 ((device & outputDesc->supportedDevices()) == 0)) { 4224 return 0; 4225 } 4226 4227 // filter devices according to output selected 4228 device = (audio_devices_t)(device & outputDesc->supportedDevices()); 4229 4230 audio_devices_t prevDevice = outputDesc->mDevice; 4231 4232 ALOGV("setOutputDevice() prevDevice 0x%04x", prevDevice); 4233 4234 if (device != AUDIO_DEVICE_NONE) { 4235 outputDesc->mDevice = device; 4236 } 4237 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4238 4239 // Do not change the routing if: 4240 // the requested device is AUDIO_DEVICE_NONE 4241 // OR the requested device is the same as current device 4242 // AND force is not specified 4243 // AND the output is connected by a valid audio patch. 4244 // Doing this check here allows the caller to call setOutputDevice() without conditions 4245 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && 4246 !force && 4247 outputDesc->mPatchHandle != 0) { 4248 ALOGV("setOutputDevice() setting same device 0x%04x or null device", device); 4249 return muteWaitMs; 4250 } 4251 4252 ALOGV("setOutputDevice() changing device"); 4253 4254 // do the routing 4255 if (device == AUDIO_DEVICE_NONE) { 4256 resetOutputDevice(outputDesc, delayMs, NULL); 4257 } else { 4258 DeviceVector deviceList = (address == NULL) ? 4259 mAvailableOutputDevices.getDevicesFromType(device) 4260 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4261 if (!deviceList.isEmpty()) { 4262 struct audio_patch patch; 4263 outputDesc->toAudioPortConfig(&patch.sources[0]); 4264 patch.num_sources = 1; 4265 patch.num_sinks = 0; 4266 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4267 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4268 patch.num_sinks++; 4269 } 4270 ssize_t index; 4271 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4272 index = mAudioPatches.indexOfKey(*patchHandle); 4273 } else { 4274 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4275 } 4276 sp< AudioPatch> patchDesc; 4277 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4278 if (index >= 0) { 4279 patchDesc = mAudioPatches.valueAt(index); 4280 afPatchHandle = patchDesc->mAfPatchHandle; 4281 } 4282 4283 status_t status = mpClientInterface->createAudioPatch(&patch, 4284 &afPatchHandle, 4285 delayMs); 4286 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4287 "num_sources %d num_sinks %d", 4288 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4289 if (status == NO_ERROR) { 4290 if (index < 0) { 4291 patchDesc = new AudioPatch(&patch, mUidCached); 4292 addAudioPatch(patchDesc->mHandle, patchDesc); 4293 } else { 4294 patchDesc->mPatch = patch; 4295 } 4296 patchDesc->mAfPatchHandle = afPatchHandle; 4297 patchDesc->mUid = mUidCached; 4298 if (patchHandle) { 4299 *patchHandle = patchDesc->mHandle; 4300 } 4301 outputDesc->mPatchHandle = patchDesc->mHandle; 4302 nextAudioPortGeneration(); 4303 mpClientInterface->onAudioPatchListUpdate(); 4304 } 4305 } 4306 4307 // inform all input as well 4308 for (size_t i = 0; i < mInputs.size(); i++) { 4309 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4310 if (!is_virtual_input_device(inputDescriptor->mDevice)) { 4311 AudioParameter inputCmd = AudioParameter(); 4312 ALOGV("%s: inform input %d of device:%d", __func__, 4313 inputDescriptor->mIoHandle, device); 4314 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4315 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4316 inputCmd.toString(), 4317 delayMs); 4318 } 4319 } 4320 } 4321 4322 // update stream volumes according to new device 4323 applyStreamVolumes(outputDesc, device, delayMs); 4324 4325 return muteWaitMs; 4326} 4327 4328status_t AudioPolicyManager::resetOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, 4329 int delayMs, 4330 audio_patch_handle_t *patchHandle) 4331{ 4332 ssize_t index; 4333 if (patchHandle) { 4334 index = mAudioPatches.indexOfKey(*patchHandle); 4335 } else { 4336 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4337 } 4338 if (index < 0) { 4339 return INVALID_OPERATION; 4340 } 4341 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4342 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4343 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4344 outputDesc->mPatchHandle = 0; 4345 removeAudioPatch(patchDesc->mHandle); 4346 nextAudioPortGeneration(); 4347 mpClientInterface->onAudioPatchListUpdate(); 4348 return status; 4349} 4350 4351status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4352 audio_devices_t device, 4353 bool force, 4354 audio_patch_handle_t *patchHandle) 4355{ 4356 status_t status = NO_ERROR; 4357 4358 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4359 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4360 inputDesc->mDevice = device; 4361 4362 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4363 if (!deviceList.isEmpty()) { 4364 struct audio_patch patch; 4365 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4366 // AUDIO_SOURCE_HOTWORD is for internal use only: 4367 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4368 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4369 !inputDesc->mIsSoundTrigger) { 4370 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4371 } 4372 patch.num_sinks = 1; 4373 //only one input device for now 4374 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4375 patch.num_sources = 1; 4376 ssize_t index; 4377 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4378 index = mAudioPatches.indexOfKey(*patchHandle); 4379 } else { 4380 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4381 } 4382 sp< AudioPatch> patchDesc; 4383 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4384 if (index >= 0) { 4385 patchDesc = mAudioPatches.valueAt(index); 4386 afPatchHandle = patchDesc->mAfPatchHandle; 4387 } 4388 4389 status_t status = mpClientInterface->createAudioPatch(&patch, 4390 &afPatchHandle, 4391 0); 4392 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4393 status, afPatchHandle); 4394 if (status == NO_ERROR) { 4395 if (index < 0) { 4396 patchDesc = new AudioPatch(&patch, mUidCached); 4397 addAudioPatch(patchDesc->mHandle, patchDesc); 4398 } else { 4399 patchDesc->mPatch = patch; 4400 } 4401 patchDesc->mAfPatchHandle = afPatchHandle; 4402 patchDesc->mUid = mUidCached; 4403 if (patchHandle) { 4404 *patchHandle = patchDesc->mHandle; 4405 } 4406 inputDesc->mPatchHandle = patchDesc->mHandle; 4407 nextAudioPortGeneration(); 4408 mpClientInterface->onAudioPatchListUpdate(); 4409 } 4410 } 4411 } 4412 return status; 4413} 4414 4415status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4416 audio_patch_handle_t *patchHandle) 4417{ 4418 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4419 ssize_t index; 4420 if (patchHandle) { 4421 index = mAudioPatches.indexOfKey(*patchHandle); 4422 } else { 4423 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4424 } 4425 if (index < 0) { 4426 return INVALID_OPERATION; 4427 } 4428 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4429 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4430 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4431 inputDesc->mPatchHandle = 0; 4432 removeAudioPatch(patchDesc->mHandle); 4433 nextAudioPortGeneration(); 4434 mpClientInterface->onAudioPatchListUpdate(); 4435 return status; 4436} 4437 4438sp<IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4439 String8 address, 4440 uint32_t& samplingRate, 4441 audio_format_t& format, 4442 audio_channel_mask_t& channelMask, 4443 audio_input_flags_t flags) 4444{ 4445 // Choose an input profile based on the requested capture parameters: select the first available 4446 // profile supporting all requested parameters. 4447 // 4448 // TODO: perhaps isCompatibleProfile should return a "matching" score so we can return 4449 // the best matching profile, not the first one. 4450 4451 for (size_t i = 0; i < mHwModules.size(); i++) 4452 { 4453 if (mHwModules[i]->mHandle == 0) { 4454 continue; 4455 } 4456 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4457 { 4458 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4459 // profile->log(); 4460 if (profile->isCompatibleProfile(device, address, samplingRate, 4461 &samplingRate /*updatedSamplingRate*/, 4462 format, 4463 &format /*updatedFormat*/, 4464 channelMask, 4465 &channelMask /*updatedChannelMask*/, 4466 (audio_output_flags_t) flags)) { 4467 4468 return profile; 4469 } 4470 } 4471 } 4472 return NULL; 4473} 4474 4475 4476audio_devices_t AudioPolicyManager::getDeviceAndMixForInputSource(audio_source_t inputSource, 4477 AudioMix **policyMix) 4478{ 4479 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 4480 audio_devices_t selectedDeviceFromMix = 4481 mPolicyMixes.getDeviceAndMixForInputSource(inputSource, availableDeviceTypes, policyMix); 4482 4483 if (selectedDeviceFromMix != AUDIO_DEVICE_NONE) { 4484 return selectedDeviceFromMix; 4485 } 4486 return getDeviceForInputSource(inputSource); 4487} 4488 4489audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4490{ 4491 for (size_t routeIndex = 0; routeIndex < mInputRoutes.size(); routeIndex++) { 4492 sp<SessionRoute> route = mInputRoutes.valueAt(routeIndex); 4493 if (inputSource == route->mSource && route->isActive()) { 4494 return route->mDeviceDescriptor->type(); 4495 } 4496 } 4497 4498 return mEngine->getDeviceForInputSource(inputSource); 4499} 4500 4501float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4502 int index, 4503 audio_devices_t device) 4504{ 4505 float volumeDb = mEngine->volIndexToDb(Volume::getDeviceCategory(device), stream, index); 4506 4507 // if a headset is connected, apply the following rules to ring tones and notifications 4508 // to avoid sound level bursts in user's ears: 4509 // - always attenuate ring tones and notifications volume by 6dB 4510 // - if music is playing, always limit the volume to current music volume, 4511 // with a minimum threshold at -36dB so that notification is always perceived. 4512 const routing_strategy stream_strategy = getStrategy(stream); 4513 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4514 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4515 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4516 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4517 ((stream_strategy == STRATEGY_SONIFICATION) 4518 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4519 || (stream == AUDIO_STREAM_SYSTEM) 4520 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4521 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_NONE))) && 4522 mStreams.canBeMuted(stream)) { 4523 volumeDb += SONIFICATION_HEADSET_VOLUME_FACTOR_DB; 4524 // when the phone is ringing we must consider that music could have been paused just before 4525 // by the music application and behave as if music was active if the last music track was 4526 // just stopped 4527 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4528 mLimitRingtoneVolume) { 4529 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4530 float musicVolDB = computeVolume(AUDIO_STREAM_MUSIC, 4531 mStreams.valueFor(AUDIO_STREAM_MUSIC).getVolumeIndex(musicDevice), 4532 musicDevice); 4533 float minVolDB = (musicVolDB > SONIFICATION_HEADSET_VOLUME_MIN_DB) ? 4534 musicVolDB : SONIFICATION_HEADSET_VOLUME_MIN_DB; 4535 if (volumeDb > minVolDB) { 4536 volumeDb = minVolDB; 4537 ALOGV("computeVolume limiting volume to %f musicVol %f", minVolDB, musicVolDB); 4538 } 4539 } 4540 } 4541 4542 return volumeDb; 4543} 4544 4545status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4546 int index, 4547 const sp<AudioOutputDescriptor>& outputDesc, 4548 audio_devices_t device, 4549 int delayMs, 4550 bool force) 4551{ 4552 // do not change actual stream volume if the stream is muted 4553 if (outputDesc->mMuteCount[stream] != 0) { 4554 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4555 stream, outputDesc->mMuteCount[stream]); 4556 return NO_ERROR; 4557 } 4558 audio_policy_forced_cfg_t forceUseForComm = 4559 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION); 4560 // do not change in call volume if bluetooth is connected and vice versa 4561 if ((stream == AUDIO_STREAM_VOICE_CALL && forceUseForComm == AUDIO_POLICY_FORCE_BT_SCO) || 4562 (stream == AUDIO_STREAM_BLUETOOTH_SCO && forceUseForComm != AUDIO_POLICY_FORCE_BT_SCO)) { 4563 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4564 stream, forceUseForComm); 4565 return INVALID_OPERATION; 4566 } 4567 4568 if (device == AUDIO_DEVICE_NONE) { 4569 device = outputDesc->device(); 4570 } 4571 4572 float volumeDb = computeVolume(stream, index, device); 4573 if (outputDesc->isFixedVolume(device)) { 4574 volumeDb = 0.0f; 4575 } 4576 4577 outputDesc->setVolume(volumeDb, stream, device, delayMs, force); 4578 4579 if (stream == AUDIO_STREAM_VOICE_CALL || 4580 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4581 float voiceVolume; 4582 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4583 if (stream == AUDIO_STREAM_VOICE_CALL) { 4584 voiceVolume = (float)index/(float)mStreams.valueFor(stream).getVolumeIndexMax(); 4585 } else { 4586 voiceVolume = 1.0; 4587 } 4588 4589 if (voiceVolume != mLastVoiceVolume && outputDesc == mPrimaryOutput) { 4590 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4591 mLastVoiceVolume = voiceVolume; 4592 } 4593 } 4594 4595 return NO_ERROR; 4596} 4597 4598void AudioPolicyManager::applyStreamVolumes(const sp<AudioOutputDescriptor>& outputDesc, 4599 audio_devices_t device, 4600 int delayMs, 4601 bool force) 4602{ 4603 ALOGVV("applyStreamVolumes() for device %08x", device); 4604 4605 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4606 if (stream == AUDIO_STREAM_PATCH) { 4607 continue; 4608 } 4609 checkAndSetVolume((audio_stream_type_t)stream, 4610 mStreams.valueFor((audio_stream_type_t)stream).getVolumeIndex(device), 4611 outputDesc, 4612 device, 4613 delayMs, 4614 force); 4615 } 4616} 4617 4618void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 4619 bool on, 4620 const sp<AudioOutputDescriptor>& outputDesc, 4621 int delayMs, 4622 audio_devices_t device) 4623{ 4624 ALOGVV("setStrategyMute() strategy %d, mute %d, output ID %d", 4625 strategy, on, outputDesc->getId()); 4626 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4627 if (stream == AUDIO_STREAM_PATCH) { 4628 continue; 4629 } 4630 if (getStrategy((audio_stream_type_t)stream) == strategy) { 4631 setStreamMute((audio_stream_type_t)stream, on, outputDesc, delayMs, device); 4632 } 4633 } 4634} 4635 4636void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 4637 bool on, 4638 const sp<AudioOutputDescriptor>& outputDesc, 4639 int delayMs, 4640 audio_devices_t device) 4641{ 4642 const StreamDescriptor& streamDesc = mStreams.valueFor(stream); 4643 if (device == AUDIO_DEVICE_NONE) { 4644 device = outputDesc->device(); 4645 } 4646 4647 ALOGVV("setStreamMute() stream %d, mute %d, mMuteCount %d device %04x", 4648 stream, on, outputDesc->mMuteCount[stream], device); 4649 4650 if (on) { 4651 if (outputDesc->mMuteCount[stream] == 0) { 4652 if (streamDesc.canBeMuted() && 4653 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 4654 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_NONE))) { 4655 checkAndSetVolume(stream, 0, outputDesc, device, delayMs); 4656 } 4657 } 4658 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 4659 outputDesc->mMuteCount[stream]++; 4660 } else { 4661 if (outputDesc->mMuteCount[stream] == 0) { 4662 ALOGV("setStreamMute() unmuting non muted stream!"); 4663 return; 4664 } 4665 if (--outputDesc->mMuteCount[stream] == 0) { 4666 checkAndSetVolume(stream, 4667 streamDesc.getVolumeIndex(device), 4668 outputDesc, 4669 device, 4670 delayMs); 4671 } 4672 } 4673} 4674 4675void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 4676 bool starting, bool stateChange) 4677{ 4678 if(!hasPrimaryOutput()) { 4679 return; 4680 } 4681 4682 // if the stream pertains to sonification strategy and we are in call we must 4683 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 4684 // in the device used for phone strategy and play the tone if the selected device does not 4685 // interfere with the device used for phone strategy 4686 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 4687 // many times as there are active tracks on the output 4688 const routing_strategy stream_strategy = getStrategy(stream); 4689 if ((stream_strategy == STRATEGY_SONIFICATION) || 4690 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 4691 sp<SwAudioOutputDescriptor> outputDesc = mPrimaryOutput; 4692 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 4693 stream, starting, outputDesc->mDevice, stateChange); 4694 if (outputDesc->mRefCount[stream]) { 4695 int muteCount = 1; 4696 if (stateChange) { 4697 muteCount = outputDesc->mRefCount[stream]; 4698 } 4699 if (audio_is_low_visibility(stream)) { 4700 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 4701 for (int i = 0; i < muteCount; i++) { 4702 setStreamMute(stream, starting, mPrimaryOutput); 4703 } 4704 } else { 4705 ALOGV("handleIncallSonification() high visibility"); 4706 if (outputDesc->device() & 4707 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 4708 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 4709 for (int i = 0; i < muteCount; i++) { 4710 setStreamMute(stream, starting, mPrimaryOutput); 4711 } 4712 } 4713 if (starting) { 4714 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 4715 AUDIO_STREAM_VOICE_CALL); 4716 } else { 4717 mpClientInterface->stopTone(); 4718 } 4719 } 4720 } 4721 } 4722} 4723 4724// --- SessionRoute class implementation 4725void AudioPolicyManager::SessionRoute::log(const char* prefix) { 4726 ALOGI("%s[SessionRoute strm:0x%X, src:%d, sess:0x%X, dev:0x%X refs:%d act:%d", 4727 prefix, mStreamType, mSource, mSession, 4728 mDeviceDescriptor != 0 ? mDeviceDescriptor->type() : AUDIO_DEVICE_NONE, 4729 mRefCount, mActivityCount); 4730} 4731 4732// --- SessionRouteMap class implementation 4733bool AudioPolicyManager::SessionRouteMap::hasRoute(audio_session_t session) 4734{ 4735 return indexOfKey(session) >= 0 && valueFor(session)->mDeviceDescriptor != 0; 4736} 4737 4738bool AudioPolicyManager::SessionRouteMap::hasRouteChanged(audio_session_t session) 4739{ 4740 if (indexOfKey(session) >= 0) { 4741 if (valueFor(session)->mChanged) { 4742 valueFor(session)->mChanged = false; 4743 return true; 4744 } 4745 } 4746 return false; 4747} 4748 4749void AudioPolicyManager::SessionRouteMap::removeRoute(audio_session_t session) 4750{ 4751 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4752 if (route != 0) { 4753 ALOG_ASSERT(route->mRefCount > 0); 4754 --route->mRefCount; 4755 if (route->mRefCount <= 0) { 4756 removeItem(session); 4757 } 4758 } 4759} 4760 4761int AudioPolicyManager::SessionRouteMap::incRouteActivity(audio_session_t session) 4762{ 4763 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4764 return route != 0 ? ++(route->mActivityCount) : -1; 4765} 4766 4767int AudioPolicyManager::SessionRouteMap::decRouteActivity(audio_session_t session) 4768{ 4769 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4770 if (route != 0 && route->mActivityCount > 0) { 4771 return --(route->mActivityCount); 4772 } else { 4773 return -1; 4774 } 4775} 4776 4777void AudioPolicyManager::SessionRouteMap::log(const char* caption) { 4778 ALOGI("%s ----", caption); 4779 for(size_t index = 0; index < size(); index++) { 4780 valueAt(index)->log(" "); 4781 } 4782} 4783 4784void AudioPolicyManager::SessionRouteMap::addRoute(audio_session_t session, 4785 audio_stream_type_t streamType, 4786 audio_source_t source, 4787 sp<DeviceDescriptor> descriptor, 4788 uid_t uid) 4789{ 4790 if (mMapType == MAPTYPE_INPUT && streamType != SessionRoute::STREAM_TYPE_NA) { 4791 ALOGE("Adding Output Route to InputRouteMap"); 4792 return; 4793 } else if (mMapType == MAPTYPE_OUTPUT && source != SessionRoute::SOURCE_TYPE_NA) { 4794 ALOGE("Adding Input Route to OutputRouteMap"); 4795 return; 4796 } 4797 4798 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4799 4800 if (route != 0) { 4801 if (((route->mDeviceDescriptor == 0) && (descriptor != 0)) || 4802 ((route->mDeviceDescriptor != 0) && 4803 ((descriptor == 0) || (!route->mDeviceDescriptor->equals(descriptor))))) { 4804 route->mChanged = true; 4805 } 4806 route->mRefCount++; 4807 route->mDeviceDescriptor = descriptor; 4808 } else { 4809 route = new AudioPolicyManager::SessionRoute(session, streamType, source, descriptor, uid); 4810 route->mRefCount++; 4811 add(session, route); 4812 if (descriptor != 0) { 4813 route->mChanged = true; 4814 } 4815 } 4816} 4817 4818void AudioPolicyManager::defaultAudioPolicyConfig(void) 4819{ 4820 sp<HwModule> module; 4821 sp<IOProfile> profile; 4822 sp<DeviceDescriptor> defaultInputDevice = 4823 new DeviceDescriptor(AUDIO_DEVICE_IN_BUILTIN_MIC); 4824 mAvailableOutputDevices.add(mDefaultOutputDevice); 4825 mAvailableInputDevices.add(defaultInputDevice); 4826 4827 module = new HwModule("primary"); 4828 4829 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE); 4830 profile->attach(module); 4831 profile->mSamplingRates.add(44100); 4832 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 4833 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 4834 profile->mSupportedDevices.add(mDefaultOutputDevice); 4835 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 4836 module->mOutputProfiles.add(profile); 4837 4838 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK); 4839 profile->attach(module); 4840 profile->mSamplingRates.add(8000); 4841 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 4842 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 4843 profile->mSupportedDevices.add(defaultInputDevice); 4844 module->mInputProfiles.add(profile); 4845 4846 mHwModules.add(module); 4847} 4848 4849audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 4850{ 4851 // flags to stream type mapping 4852 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4853 return AUDIO_STREAM_ENFORCED_AUDIBLE; 4854 } 4855 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 4856 return AUDIO_STREAM_BLUETOOTH_SCO; 4857 } 4858 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4859 return AUDIO_STREAM_TTS; 4860 } 4861 4862 // usage to stream type mapping 4863 switch (attr->usage) { 4864 case AUDIO_USAGE_MEDIA: 4865 case AUDIO_USAGE_GAME: 4866 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4867 return AUDIO_STREAM_MUSIC; 4868 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4869 if (isStreamActive(AUDIO_STREAM_ALARM)) { 4870 return AUDIO_STREAM_ALARM; 4871 } 4872 if (isStreamActive(AUDIO_STREAM_RING)) { 4873 return AUDIO_STREAM_RING; 4874 } 4875 if (isInCall()) { 4876 return AUDIO_STREAM_VOICE_CALL; 4877 } 4878 return AUDIO_STREAM_ACCESSIBILITY; 4879 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4880 return AUDIO_STREAM_SYSTEM; 4881 case AUDIO_USAGE_VOICE_COMMUNICATION: 4882 return AUDIO_STREAM_VOICE_CALL; 4883 4884 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4885 return AUDIO_STREAM_DTMF; 4886 4887 case AUDIO_USAGE_ALARM: 4888 return AUDIO_STREAM_ALARM; 4889 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4890 return AUDIO_STREAM_RING; 4891 4892 case AUDIO_USAGE_NOTIFICATION: 4893 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4894 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4895 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4896 case AUDIO_USAGE_NOTIFICATION_EVENT: 4897 return AUDIO_STREAM_NOTIFICATION; 4898 4899 case AUDIO_USAGE_UNKNOWN: 4900 default: 4901 return AUDIO_STREAM_MUSIC; 4902 } 4903} 4904 4905bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) 4906{ 4907 // has flags that map to a strategy? 4908 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 4909 return true; 4910 } 4911 4912 // has known usage? 4913 switch (paa->usage) { 4914 case AUDIO_USAGE_UNKNOWN: 4915 case AUDIO_USAGE_MEDIA: 4916 case AUDIO_USAGE_VOICE_COMMUNICATION: 4917 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4918 case AUDIO_USAGE_ALARM: 4919 case AUDIO_USAGE_NOTIFICATION: 4920 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4921 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4922 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4923 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4924 case AUDIO_USAGE_NOTIFICATION_EVENT: 4925 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4926 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4927 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4928 case AUDIO_USAGE_GAME: 4929 case AUDIO_USAGE_VIRTUAL_SOURCE: 4930 break; 4931 default: 4932 return false; 4933 } 4934 return true; 4935} 4936 4937bool AudioPolicyManager::isStrategyActive(const sp<AudioOutputDescriptor> outputDesc, 4938 routing_strategy strategy, uint32_t inPastMs, 4939 nsecs_t sysTime) const 4940{ 4941 if ((sysTime == 0) && (inPastMs != 0)) { 4942 sysTime = systemTime(); 4943 } 4944 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4945 if (i == AUDIO_STREAM_PATCH) { 4946 continue; 4947 } 4948 if (((getStrategy((audio_stream_type_t)i) == strategy) || 4949 (NUM_STRATEGIES == strategy)) && 4950 outputDesc->isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 4951 return true; 4952 } 4953 } 4954 return false; 4955} 4956 4957audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 4958{ 4959 return mEngine->getForceUse(usage); 4960} 4961 4962bool AudioPolicyManager::isInCall() 4963{ 4964 return isStateInCall(mEngine->getPhoneState()); 4965} 4966 4967bool AudioPolicyManager::isStateInCall(int state) 4968{ 4969 return is_state_in_call(state); 4970} 4971 4972}; // namespace android 4973