AudioPolicyManager.cpp revision 3bcf8597189c592713675ec58326ecbef0ac4ae9
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<AudioOutputDescriptor> 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) { 175 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 176 updateCallRouting(newDevice); 177 } 178 for (size_t i = 0; i < mOutputs.size(); i++) { 179 audio_io_handle_t output = mOutputs.keyAt(i); 180 if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 181 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 182 true /*fromCache*/); 183 // do not force device change on duplicated output because if device is 0, it will 184 // also force a device 0 for the two outputs it is duplicated to which may override 185 // a valid device selection on those outputs. 186 bool force = !mOutputs.valueAt(i)->isDuplicated() 187 && (!device_distinguishes_on_address(device) 188 // always force when disconnecting (a non-duplicated device) 189 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 190 setOutputDevice(output, newDevice, force, 0); 191 } 192 } 193 194 mpClientInterface->onAudioPortListUpdate(); 195 return NO_ERROR; 196 } // end if is output device 197 198 // handle input devices 199 if (audio_is_input_device(device)) { 200 SortedVector <audio_io_handle_t> inputs; 201 202 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 203 switch (state) 204 { 205 // handle input device connection 206 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 207 if (index >= 0) { 208 ALOGW("setDeviceConnectionState() device already connected: %d", device); 209 return INVALID_OPERATION; 210 } 211 sp<HwModule> module = mHwModules.getModuleForDevice(device); 212 if (module == NULL) { 213 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 214 device); 215 return INVALID_OPERATION; 216 } 217 if (checkInputsForDevice(device, state, inputs, devDesc->mAddress) != NO_ERROR) { 218 return INVALID_OPERATION; 219 } 220 221 index = mAvailableInputDevices.add(devDesc); 222 if (index >= 0) { 223 mAvailableInputDevices[index]->attach(module); 224 } else { 225 return NO_MEMORY; 226 } 227 228 // Set connect to HALs 229 AudioParameter param = AudioParameter(devDesc->mAddress); 230 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 231 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 232 233 // Propagate device availability to Engine 234 mEngine->setDeviceConnectionState(devDesc, state); 235 } break; 236 237 // handle input device disconnection 238 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 239 if (index < 0) { 240 ALOGW("setDeviceConnectionState() device not connected: %d", device); 241 return INVALID_OPERATION; 242 } 243 244 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 245 246 // Set Disconnect to HALs 247 AudioParameter param = AudioParameter(devDesc->mAddress); 248 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 249 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 250 251 checkInputsForDevice(device, state, inputs, devDesc->mAddress); 252 mAvailableInputDevices.remove(devDesc); 253 254 // Propagate device availability to Engine 255 mEngine->setDeviceConnectionState(devDesc, state); 256 } break; 257 258 default: 259 ALOGE("setDeviceConnectionState() invalid state: %x", state); 260 return BAD_VALUE; 261 } 262 263 closeAllInputs(); 264 265 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) { 266 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 267 updateCallRouting(newDevice); 268 } 269 270 mpClientInterface->onAudioPortListUpdate(); 271 return NO_ERROR; 272 } // end if is input device 273 274 ALOGW("setDeviceConnectionState() invalid device: %x", device); 275 return BAD_VALUE; 276} 277 278audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 279 const char *device_address) 280{ 281 sp<DeviceDescriptor> devDesc = mHwModules.getDeviceDescriptor(device, device_address, ""); 282 283 DeviceVector *deviceVector; 284 285 if (audio_is_output_device(device)) { 286 deviceVector = &mAvailableOutputDevices; 287 } else if (audio_is_input_device(device)) { 288 deviceVector = &mAvailableInputDevices; 289 } else { 290 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 291 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 292 } 293 return deviceVector->getDeviceConnectionState(devDesc); 294} 295 296void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 297{ 298 bool createTxPatch = false; 299 struct audio_patch patch; 300 patch.num_sources = 1; 301 patch.num_sinks = 1; 302 status_t status; 303 audio_patch_handle_t afPatchHandle; 304 DeviceVector deviceList; 305 306 audio_devices_t txDevice = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 307 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 308 309 // release existing RX patch if any 310 if (mCallRxPatch != 0) { 311 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 312 mCallRxPatch.clear(); 313 } 314 // release TX patch if any 315 if (mCallTxPatch != 0) { 316 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 317 mCallTxPatch.clear(); 318 } 319 320 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 321 // via setOutputDevice() on primary output. 322 // Otherwise, create two audio patches for TX and RX path. 323 if (availablePrimaryOutputDevices() & rxDevice) { 324 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 325 // If the TX device is also on the primary HW module, setOutputDevice() will take care 326 // of it due to legacy implementation. If not, create a patch. 327 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 328 == AUDIO_DEVICE_NONE) { 329 createTxPatch = true; 330 } 331 } else { 332 // create RX path audio patch 333 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 334 ALOG_ASSERT(!deviceList.isEmpty(), 335 "updateCallRouting() selected device not in output device list"); 336 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 337 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 338 ALOG_ASSERT(!deviceList.isEmpty(), 339 "updateCallRouting() no telephony RX device"); 340 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 341 342 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 343 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 344 345 // request to reuse existing output stream if one is already opened to reach the RX device 346 SortedVector<audio_io_handle_t> outputs = 347 getOutputsForDevice(rxDevice, mOutputs); 348 audio_io_handle_t output = selectOutput(outputs, 349 AUDIO_OUTPUT_FLAG_NONE, 350 AUDIO_FORMAT_INVALID); 351 if (output != AUDIO_IO_HANDLE_NONE) { 352 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 353 ALOG_ASSERT(!outputDesc->isDuplicated(), 354 "updateCallRouting() RX device output is duplicated"); 355 outputDesc->toAudioPortConfig(&patch.sources[1]); 356 patch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 357 patch.num_sources = 2; 358 } 359 360 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 361 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 362 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 363 status); 364 if (status == NO_ERROR) { 365 mCallRxPatch = new AudioPatch(&patch, mUidCached); 366 mCallRxPatch->mAfPatchHandle = afPatchHandle; 367 mCallRxPatch->mUid = mUidCached; 368 } 369 createTxPatch = true; 370 } 371 if (createTxPatch) { 372 373 struct audio_patch patch; 374 patch.num_sources = 1; 375 patch.num_sinks = 1; 376 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 377 ALOG_ASSERT(!deviceList.isEmpty(), 378 "updateCallRouting() selected device not in input device list"); 379 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 380 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 381 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 382 ALOG_ASSERT(!deviceList.isEmpty(), 383 "updateCallRouting() no telephony TX device"); 384 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 385 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 386 387 SortedVector<audio_io_handle_t> outputs = 388 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 389 audio_io_handle_t output = selectOutput(outputs, 390 AUDIO_OUTPUT_FLAG_NONE, 391 AUDIO_FORMAT_INVALID); 392 // request to reuse existing output stream if one is already opened to reach the TX 393 // path output device 394 if (output != AUDIO_IO_HANDLE_NONE) { 395 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 396 ALOG_ASSERT(!outputDesc->isDuplicated(), 397 "updateCallRouting() RX device output is duplicated"); 398 outputDesc->toAudioPortConfig(&patch.sources[1]); 399 patch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 400 patch.num_sources = 2; 401 } 402 403 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 404 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 405 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 406 status); 407 if (status == NO_ERROR) { 408 mCallTxPatch = new AudioPatch(&patch, mUidCached); 409 mCallTxPatch->mAfPatchHandle = afPatchHandle; 410 mCallTxPatch->mUid = mUidCached; 411 } 412 } 413} 414 415void AudioPolicyManager::setPhoneState(audio_mode_t state) 416{ 417 ALOGV("setPhoneState() state %d", state); 418 // store previous phone state for management of sonification strategy below 419 int oldState = mEngine->getPhoneState(); 420 421 if (mEngine->setPhoneState(state) != NO_ERROR) { 422 ALOGW("setPhoneState() invalid or same state %d", state); 423 return; 424 } 425 /// Opens: can these line be executed after the switch of volume curves??? 426 // if leaving call state, handle special case of active streams 427 // pertaining to sonification strategy see handleIncallSonification() 428 if (isInCall()) { 429 ALOGV("setPhoneState() in call state management: new state is %d", state); 430 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 431 if (stream == AUDIO_STREAM_PATCH) { 432 continue; 433 } 434 handleIncallSonification((audio_stream_type_t)stream, false, true); 435 } 436 437 // force reevaluating accessibility routing when call starts 438 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 439 } 440 441 /** 442 * Switching to or from incall state or switching between telephony and VoIP lead to force 443 * routing command. 444 */ 445 bool force = ((is_state_in_call(oldState) != is_state_in_call(state)) 446 || (is_state_in_call(state) && (state != oldState))); 447 448 // check for device and output changes triggered by new phone state 449 checkA2dpSuspend(); 450 checkOutputForAllStrategies(); 451 updateDevicesAndOutputs(); 452 453 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 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<AudioOutputDescriptor> 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->mLatency*2)) { 470 delayMs = desc->mLatency*2; 471 } 472 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 473 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 474 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 475 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 476 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 477 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 478 } 479 } 480 481 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 482 // the device returned is not necessarily reachable via this output 483 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 484 // force routing command to audio hardware when ending call 485 // even if no device change is needed 486 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 487 rxDevice = hwOutputDesc->device(); 488 } 489 490 if (state == AUDIO_MODE_IN_CALL) { 491 updateCallRouting(rxDevice, delayMs); 492 } else if (oldState == AUDIO_MODE_IN_CALL) { 493 if (mCallRxPatch != 0) { 494 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 495 mCallRxPatch.clear(); 496 } 497 if (mCallTxPatch != 0) { 498 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 499 mCallTxPatch.clear(); 500 } 501 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 502 } else { 503 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 504 } 505 // if entering in call state, handle special case of active streams 506 // pertaining to sonification strategy see handleIncallSonification() 507 if (isStateInCall(state)) { 508 ALOGV("setPhoneState() in call state management: new state is %d", state); 509 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 510 if (stream == AUDIO_STREAM_PATCH) { 511 continue; 512 } 513 handleIncallSonification((audio_stream_type_t)stream, true, true); 514 } 515 } 516 517 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 518 if (state == AUDIO_MODE_RINGTONE && 519 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 520 mLimitRingtoneVolume = true; 521 } else { 522 mLimitRingtoneVolume = false; 523 } 524} 525 526audio_mode_t AudioPolicyManager::getPhoneState() { 527 return mEngine->getPhoneState(); 528} 529 530void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 531 audio_policy_forced_cfg_t config) 532{ 533 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mEngine->getPhoneState()); 534 535 if (mEngine->setForceUse(usage, config) != NO_ERROR) { 536 ALOGW("setForceUse() could not set force cfg %d for usage %d", config, usage); 537 return; 538 } 539 bool forceVolumeReeval = (usage == AUDIO_POLICY_FORCE_FOR_COMMUNICATION) || 540 (usage == AUDIO_POLICY_FORCE_FOR_DOCK) || 541 (usage == AUDIO_POLICY_FORCE_FOR_SYSTEM); 542 543 // check for device and output changes triggered by new force usage 544 checkA2dpSuspend(); 545 checkOutputForAllStrategies(); 546 updateDevicesAndOutputs(); 547 if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) { 548 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 549 updateCallRouting(newDevice); 550 } 551 for (size_t i = 0; i < mOutputs.size(); i++) { 552 audio_io_handle_t output = mOutputs.keyAt(i); 553 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 554 if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 555 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 556 } 557 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 558 applyStreamVolumes(output, newDevice, 0, true); 559 } 560 } 561 562 audio_io_handle_t activeInput = mInputs.getActiveInput(); 563 if (activeInput != 0) { 564 setInputDevice(activeInput, getNewInputDevice(activeInput)); 565 } 566 567} 568 569void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 570{ 571 ALOGV("setSystemProperty() property %s, value %s", property, value); 572} 573 574// Find a direct output profile compatible with the parameters passed, even if the input flags do 575// not explicitly request a direct output 576sp<IOProfile> AudioPolicyManager::getProfileForDirectOutput( 577 audio_devices_t device, 578 uint32_t samplingRate, 579 audio_format_t format, 580 audio_channel_mask_t channelMask, 581 audio_output_flags_t flags) 582{ 583 for (size_t i = 0; i < mHwModules.size(); i++) { 584 if (mHwModules[i]->mHandle == 0) { 585 continue; 586 } 587 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 588 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 589 bool found = profile->isCompatibleProfile(device, String8(""), samplingRate, 590 NULL /*updatedSamplingRate*/, format, channelMask, 591 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 592 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 593 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 594 return profile; 595 } 596 } 597 } 598 return 0; 599} 600 601audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 602 uint32_t samplingRate, 603 audio_format_t format, 604 audio_channel_mask_t channelMask, 605 audio_output_flags_t flags, 606 const audio_offload_info_t *offloadInfo) 607{ 608 routing_strategy strategy = getStrategy(stream); 609 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 610 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 611 device, stream, samplingRate, format, channelMask, flags); 612 613 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 614 stream, samplingRate,format, channelMask, 615 flags, offloadInfo); 616} 617 618status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 619 audio_io_handle_t *output, 620 audio_session_t session, 621 audio_stream_type_t *stream, 622 uint32_t samplingRate, 623 audio_format_t format, 624 audio_channel_mask_t channelMask, 625 audio_output_flags_t flags, 626 audio_port_handle_t selectedDeviceId, 627 const audio_offload_info_t *offloadInfo) 628{ 629 audio_attributes_t attributes; 630 if (attr != NULL) { 631 if (!isValidAttributes(attr)) { 632 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 633 attr->usage, attr->content_type, attr->flags, 634 attr->tags); 635 return BAD_VALUE; 636 } 637 attributes = *attr; 638 } else { 639 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 640 ALOGE("getOutputForAttr(): invalid stream type"); 641 return BAD_VALUE; 642 } 643 stream_type_to_audio_attributes(*stream, &attributes); 644 } 645 sp<AudioOutputDescriptor> desc; 646 if (mPolicyMixes.getOutputForAttr(attributes, desc) == NO_ERROR) { 647 ALOG_ASSERT(desc != 0, "Invalid desc returned by getOutputForAttr"); 648 if (!audio_is_linear_pcm(format)) { 649 return BAD_VALUE; 650 } 651 *stream = streamTypefromAttributesInt(&attributes); 652 *output = desc->mIoHandle; 653 ALOGV("getOutputForAttr() returns output %d", *output); 654 return NO_ERROR; 655 } 656 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE) { 657 ALOGW("getOutputForAttr() no policy mix found for usage AUDIO_USAGE_VIRTUAL_SOURCE"); 658 return BAD_VALUE; 659 } 660 661 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 662 attributes.usage, attributes.content_type, attributes.tags, attributes.flags); 663 664 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 665 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 666 667 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 668 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 669 } 670 671 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 672 device, samplingRate, format, channelMask, flags); 673 674 *stream = streamTypefromAttributesInt(&attributes); 675 *output = getOutputForDevice(device, session, *stream, 676 samplingRate, format, channelMask, 677 flags, offloadInfo); 678 if (*output == AUDIO_IO_HANDLE_NONE) { 679 return INVALID_OPERATION; 680 } 681 682 // Explicit routing? 683 sp<DeviceDescriptor> deviceDesc; 684 685 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 686 if (mAvailableOutputDevices[i]->getId() == selectedDeviceId) { 687 deviceDesc = mAvailableOutputDevices[i]; 688 break; 689 } 690 } 691 mOutputRoutes.addRoute(session, *stream, deviceDesc); 692 return NO_ERROR; 693} 694 695audio_io_handle_t AudioPolicyManager::getOutputForDevice( 696 audio_devices_t device, 697 audio_session_t session __unused, 698 audio_stream_type_t stream, 699 uint32_t samplingRate, 700 audio_format_t format, 701 audio_channel_mask_t channelMask, 702 audio_output_flags_t flags, 703 const audio_offload_info_t *offloadInfo) 704{ 705 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 706 uint32_t latency = 0; 707 status_t status; 708 709#ifdef AUDIO_POLICY_TEST 710 if (mCurOutput != 0) { 711 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 712 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 713 714 if (mTestOutputs[mCurOutput] == 0) { 715 ALOGV("getOutput() opening test output"); 716 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 717 outputDesc->mDevice = mTestDevice; 718 outputDesc->mLatency = mTestLatencyMs; 719 outputDesc->mFlags = 720 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 721 outputDesc->mRefCount[stream] = 0; 722 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 723 config.sample_rate = mTestSamplingRate; 724 config.channel_mask = mTestChannels; 725 config.format = mTestFormat; 726 if (offloadInfo != NULL) { 727 config.offload_info = *offloadInfo; 728 } 729 status = mpClientInterface->openOutput(0, 730 &mTestOutputs[mCurOutput], 731 &config, 732 &outputDesc->mDevice, 733 String8(""), 734 &outputDesc->mLatency, 735 outputDesc->mFlags); 736 if (status == NO_ERROR) { 737 outputDesc->mSamplingRate = config.sample_rate; 738 outputDesc->mFormat = config.format; 739 outputDesc->mChannelMask = config.channel_mask; 740 AudioParameter outputCmd = AudioParameter(); 741 outputCmd.addInt(String8("set_id"),mCurOutput); 742 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 743 addOutput(mTestOutputs[mCurOutput], outputDesc); 744 } 745 } 746 return mTestOutputs[mCurOutput]; 747 } 748#endif //AUDIO_POLICY_TEST 749 750 // open a direct output if required by specified parameters 751 //force direct flag if offload flag is set: offloading implies a direct output stream 752 // and all common behaviors are driven by checking only the direct flag 753 // this should normally be set appropriately in the policy configuration file 754 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 755 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 756 } 757 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 758 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 759 } 760 // only allow deep buffering for music stream type 761 if (stream != AUDIO_STREAM_MUSIC) { 762 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 763 } 764 765 sp<IOProfile> profile; 766 767 // skip direct output selection if the request can obviously be attached to a mixed output 768 // and not explicitly requested 769 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 770 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 771 audio_channel_count_from_out_mask(channelMask) <= 2) { 772 goto non_direct_output; 773 } 774 775 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 776 // creating an offloaded track and tearing it down immediately after start when audioflinger 777 // detects there is an active non offloadable effect. 778 // FIXME: We should check the audio session here but we do not have it in this context. 779 // This may prevent offloading in rare situations where effects are left active by apps 780 // in the background. 781 782 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 783 !mEffects.isNonOffloadableEffectEnabled()) { 784 profile = getProfileForDirectOutput(device, 785 samplingRate, 786 format, 787 channelMask, 788 (audio_output_flags_t)flags); 789 } 790 791 if (profile != 0) { 792 sp<AudioOutputDescriptor> outputDesc = NULL; 793 794 for (size_t i = 0; i < mOutputs.size(); i++) { 795 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 796 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 797 outputDesc = desc; 798 // reuse direct output if currently open and configured with same parameters 799 if ((samplingRate == outputDesc->mSamplingRate) && 800 (format == outputDesc->mFormat) && 801 (channelMask == outputDesc->mChannelMask)) { 802 outputDesc->mDirectOpenCount++; 803 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 804 return mOutputs.keyAt(i); 805 } 806 } 807 } 808 // close direct output if currently open and configured with different parameters 809 if (outputDesc != NULL) { 810 closeOutput(outputDesc->mIoHandle); 811 } 812 outputDesc = new AudioOutputDescriptor(profile); 813 outputDesc->mDevice = device; 814 outputDesc->mLatency = 0; 815 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 816 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 817 config.sample_rate = samplingRate; 818 config.channel_mask = channelMask; 819 config.format = format; 820 if (offloadInfo != NULL) { 821 config.offload_info = *offloadInfo; 822 } 823 status = mpClientInterface->openOutput(profile->getModuleHandle(), 824 &output, 825 &config, 826 &outputDesc->mDevice, 827 String8(""), 828 &outputDesc->mLatency, 829 outputDesc->mFlags); 830 831 // only accept an output with the requested parameters 832 if (status != NO_ERROR || 833 (samplingRate != 0 && samplingRate != config.sample_rate) || 834 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 835 (channelMask != 0 && channelMask != config.channel_mask)) { 836 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 837 "format %d %d, channelMask %04x %04x", output, samplingRate, 838 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 839 outputDesc->mChannelMask); 840 if (output != AUDIO_IO_HANDLE_NONE) { 841 mpClientInterface->closeOutput(output); 842 } 843 // fall back to mixer output if possible when the direct output could not be open 844 if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) { 845 goto non_direct_output; 846 } 847 // fall back to mixer output if possible when the direct output could not be open 848 if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) { 849 goto non_direct_output; 850 } 851 return AUDIO_IO_HANDLE_NONE; 852 } 853 outputDesc->mSamplingRate = config.sample_rate; 854 outputDesc->mChannelMask = config.channel_mask; 855 outputDesc->mFormat = config.format; 856 outputDesc->mRefCount[stream] = 0; 857 outputDesc->mStopTime[stream] = 0; 858 outputDesc->mDirectOpenCount = 1; 859 860 audio_io_handle_t srcOutput = getOutputForEffect(); 861 addOutput(output, outputDesc); 862 audio_io_handle_t dstOutput = getOutputForEffect(); 863 if (dstOutput == output) { 864 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 865 } 866 mPreviousOutputs = mOutputs; 867 ALOGV("getOutput() returns new direct output %d", output); 868 mpClientInterface->onAudioPortListUpdate(); 869 return output; 870 } 871 872non_direct_output: 873 // ignoring channel mask due to downmix capability in mixer 874 875 // open a non direct output 876 877 // for non direct outputs, only PCM is supported 878 if (audio_is_linear_pcm(format)) { 879 // get which output is suitable for the specified stream. The actual 880 // routing change will happen when startOutput() will be called 881 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 882 883 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 884 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 885 output = selectOutput(outputs, flags, format); 886 } 887 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 888 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 889 890 ALOGV(" getOutputForDevice() returns output %d", output); 891 892 return output; 893} 894 895audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 896 audio_output_flags_t flags, 897 audio_format_t format) 898{ 899 // select one output among several that provide a path to a particular device or set of 900 // devices (the list was previously build by getOutputsForDevice()). 901 // The priority is as follows: 902 // 1: the output with the highest number of requested policy flags 903 // 2: the primary output 904 // 3: the first output in the list 905 906 if (outputs.size() == 0) { 907 return 0; 908 } 909 if (outputs.size() == 1) { 910 return outputs[0]; 911 } 912 913 int maxCommonFlags = 0; 914 audio_io_handle_t outputFlags = 0; 915 audio_io_handle_t outputPrimary = 0; 916 917 for (size_t i = 0; i < outputs.size(); i++) { 918 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 919 if (!outputDesc->isDuplicated()) { 920 // if a valid format is specified, skip output if not compatible 921 if (format != AUDIO_FORMAT_INVALID) { 922 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 923 if (format != outputDesc->mFormat) { 924 continue; 925 } 926 } else if (!audio_is_linear_pcm(format)) { 927 continue; 928 } 929 } 930 931 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 932 if (commonFlags > maxCommonFlags) { 933 outputFlags = outputs[i]; 934 maxCommonFlags = commonFlags; 935 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 936 } 937 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 938 outputPrimary = outputs[i]; 939 } 940 } 941 } 942 943 if (outputFlags != 0) { 944 return outputFlags; 945 } 946 if (outputPrimary != 0) { 947 return outputPrimary; 948 } 949 950 return outputs[0]; 951} 952 953status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 954 audio_stream_type_t stream, 955 audio_session_t session) 956{ 957 ALOGV("startOutput() output %d, stream %d, session %d", 958 output, stream, session); 959 ssize_t index = mOutputs.indexOfKey(output); 960 if (index < 0) { 961 ALOGW("startOutput() unknown output %d", output); 962 return BAD_VALUE; 963 } 964 965 // cannot start playback of STREAM_TTS if any other output is being used 966 uint32_t beaconMuteLatency = 0; 967 if (stream == AUDIO_STREAM_TTS) { 968 ALOGV("\t found BEACON stream"); 969 if (mOutputs.isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 970 return INVALID_OPERATION; 971 } else { 972 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 973 } 974 } else { 975 // some playback other than beacon starts 976 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 977 } 978 979 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 980 // increment usage count for this stream on the requested output: 981 // NOTE that the usage count is the same for duplicated output and hardware output which is 982 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 983 outputDesc->changeRefCount(stream, 1); 984 985 // Routing? 986 mOutputRoutes.incRouteActivity(session); 987 988 if (outputDesc->mRefCount[stream] == 1) { 989 // starting an output being rerouted? 990 audio_devices_t newDevice; 991 if (outputDesc->mPolicyMix != NULL) { 992 newDevice = AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 993 } else { 994 newDevice = getNewOutputDevice(output, false /*fromCache*/); 995 } 996 routing_strategy strategy = getStrategy(stream); 997 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 998 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 999 (beaconMuteLatency > 0); 1000 uint32_t waitMs = beaconMuteLatency; 1001 bool force = false; 1002 for (size_t i = 0; i < mOutputs.size(); i++) { 1003 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1004 if (desc != outputDesc) { 1005 // force a device change if any other output is managed by the same hw 1006 // module and has a current device selection that differs from selected device. 1007 // In this case, the audio HAL must receive the new device selection so that it can 1008 // change the device currently selected by the other active output. 1009 if (outputDesc->sharesHwModuleWith(desc) && 1010 desc->device() != newDevice) { 1011 force = true; 1012 } 1013 // wait for audio on other active outputs to be presented when starting 1014 // a notification so that audio focus effect can propagate, or that a mute/unmute 1015 // event occurred for beacon 1016 uint32_t latency = desc->latency(); 1017 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1018 waitMs = latency; 1019 } 1020 } 1021 } 1022 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1023 1024 // handle special case for sonification while in call 1025 if (isInCall()) { 1026 handleIncallSonification(stream, true, false); 1027 } 1028 1029 // apply volume rules for current stream and device if necessary 1030 checkAndSetVolume(stream, 1031 mStreams[stream].getVolumeIndex(newDevice), 1032 output, 1033 newDevice); 1034 1035 // update the outputs if starting an output with a stream that can affect notification 1036 // routing 1037 handleNotificationRoutingForStream(stream); 1038 1039 // Automatically enable the remote submix input when output is started on a re routing mix 1040 // of type MIX_TYPE_RECORDERS 1041 if (audio_is_remote_submix_device(newDevice) && outputDesc->mPolicyMix != NULL && 1042 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1043 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1044 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1045 outputDesc->mPolicyMix->mRegistrationId, 1046 "remote-submix"); 1047 } 1048 1049 // force reevaluating accessibility routing when ringtone or alarm starts 1050 if (strategy == STRATEGY_SONIFICATION) { 1051 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 1052 } 1053 1054 if (waitMs > muteWaitMs) { 1055 usleep((waitMs - muteWaitMs) * 2 * 1000); 1056 } 1057 } 1058 return NO_ERROR; 1059} 1060 1061 1062status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1063 audio_stream_type_t stream, 1064 audio_session_t session) 1065{ 1066 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1067 ssize_t index = mOutputs.indexOfKey(output); 1068 if (index < 0) { 1069 ALOGW("stopOutput() unknown output %d", output); 1070 return BAD_VALUE; 1071 } 1072 1073 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1074 1075 // always handle stream stop, check which stream type is stopping 1076 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1077 1078 // handle special case for sonification while in call 1079 if (isInCall()) { 1080 handleIncallSonification(stream, false, false); 1081 } 1082 1083 if (outputDesc->mRefCount[stream] > 0) { 1084 // decrement usage count of this stream on the output 1085 outputDesc->changeRefCount(stream, -1); 1086 1087 // Routing? 1088 mOutputRoutes.decRouteActivity(session); 1089 1090 // store time at which the stream was stopped - see isStreamActive() 1091 if (outputDesc->mRefCount[stream] == 0) { 1092 // Automatically disable the remote submix input when output is stopped on a 1093 // re routing mix of type MIX_TYPE_RECORDERS 1094 if (audio_is_remote_submix_device(outputDesc->mDevice) && 1095 outputDesc->mPolicyMix != NULL && 1096 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1097 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1098 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1099 outputDesc->mPolicyMix->mRegistrationId, 1100 "remote-submix"); 1101 } 1102 1103 outputDesc->mStopTime[stream] = systemTime(); 1104 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1105 // delay the device switch by twice the latency because stopOutput() is executed when 1106 // the track stop() command is received and at that time the audio track buffer can 1107 // still contain data that needs to be drained. The latency only covers the audio HAL 1108 // and kernel buffers. Also the latency does not always include additional delay in the 1109 // audio path (audio DSP, CODEC ...) 1110 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1111 1112 // force restoring the device selection on other active outputs if it differs from the 1113 // one being selected for this output 1114 for (size_t i = 0; i < mOutputs.size(); i++) { 1115 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1116 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1117 if (curOutput != output && 1118 desc->isActive() && 1119 outputDesc->sharesHwModuleWith(desc) && 1120 (newDevice != desc->device())) { 1121 setOutputDevice(curOutput, 1122 getNewOutputDevice(curOutput, false /*fromCache*/), 1123 true, 1124 outputDesc->mLatency*2); 1125 } 1126 } 1127 // update the outputs if stopping one with a stream that can affect notification routing 1128 handleNotificationRoutingForStream(stream); 1129 } 1130 return NO_ERROR; 1131 } else { 1132 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1133 return INVALID_OPERATION; 1134 } 1135} 1136 1137void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1138 audio_stream_type_t stream __unused, 1139 audio_session_t session __unused) 1140{ 1141 ALOGV("releaseOutput() %d", output); 1142 ssize_t index = mOutputs.indexOfKey(output); 1143 if (index < 0) { 1144 ALOGW("releaseOutput() releasing unknown output %d", output); 1145 return; 1146 } 1147 1148#ifdef AUDIO_POLICY_TEST 1149 int testIndex = testOutputIndex(output); 1150 if (testIndex != 0) { 1151 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1152 if (outputDesc->isActive()) { 1153 mpClientInterface->closeOutput(output); 1154 removeOutput(output); 1155 mTestOutputs[testIndex] = 0; 1156 } 1157 return; 1158 } 1159#endif //AUDIO_POLICY_TEST 1160 1161 // Routing 1162 mOutputRoutes.removeRoute(session); 1163 1164 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1165 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1166 if (desc->mDirectOpenCount <= 0) { 1167 ALOGW("releaseOutput() invalid open count %d for output %d", 1168 desc->mDirectOpenCount, output); 1169 return; 1170 } 1171 if (--desc->mDirectOpenCount == 0) { 1172 closeOutput(output); 1173 // If effects where present on the output, audioflinger moved them to the primary 1174 // output by default: move them back to the appropriate output. 1175 audio_io_handle_t dstOutput = getOutputForEffect(); 1176 if (dstOutput != mPrimaryOutput) { 1177 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1178 } 1179 mpClientInterface->onAudioPortListUpdate(); 1180 } 1181 } 1182} 1183 1184 1185status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1186 audio_io_handle_t *input, 1187 audio_session_t session, 1188 uint32_t samplingRate, 1189 audio_format_t format, 1190 audio_channel_mask_t channelMask, 1191 audio_input_flags_t flags, 1192 input_type_t *inputType) 1193{ 1194 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1195 "session %d, flags %#x", 1196 attr->source, samplingRate, format, channelMask, session, flags); 1197 1198 *input = AUDIO_IO_HANDLE_NONE; 1199 *inputType = API_INPUT_INVALID; 1200 audio_devices_t device; 1201 // handle legacy remote submix case where the address was not always specified 1202 String8 address = String8(""); 1203 bool isSoundTrigger = false; 1204 audio_source_t inputSource = attr->source; 1205 audio_source_t halInputSource; 1206 AudioMix *policyMix = NULL; 1207 1208 if (inputSource == AUDIO_SOURCE_DEFAULT) { 1209 inputSource = AUDIO_SOURCE_MIC; 1210 } 1211 halInputSource = inputSource; 1212 1213 if (inputSource == AUDIO_SOURCE_REMOTE_SUBMIX && 1214 strncmp(attr->tags, "addr=", strlen("addr=")) == 0) { 1215 status_t ret = mPolicyMixes.getInputMixForAttr(*attr, policyMix); 1216 if (ret != NO_ERROR) { 1217 return ret; 1218 } 1219 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1220 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 1221 address = String8(attr->tags + strlen("addr=")); 1222 } else { 1223 device = getDeviceAndMixForInputSource(inputSource, &policyMix); 1224 if (device == AUDIO_DEVICE_NONE) { 1225 ALOGW("getInputForAttr() could not find device for source %d", inputSource); 1226 return BAD_VALUE; 1227 } 1228 if (policyMix != NULL) { 1229 address = policyMix->mRegistrationId; 1230 if (policyMix->mMixType == MIX_TYPE_RECORDERS) { 1231 // there is an external policy, but this input is attached to a mix of recorders, 1232 // meaning it receives audio injected into the framework, so the recorder doesn't 1233 // know about it and is therefore considered "legacy" 1234 *inputType = API_INPUT_LEGACY; 1235 } else { 1236 // recording a mix of players defined by an external policy, we're rerouting for 1237 // an external policy 1238 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1239 } 1240 } else if (audio_is_remote_submix_device(device)) { 1241 address = String8("0"); 1242 *inputType = API_INPUT_MIX_CAPTURE; 1243 } else { 1244 *inputType = API_INPUT_LEGACY; 1245 } 1246 // adapt channel selection to input source 1247 switch (inputSource) { 1248 case AUDIO_SOURCE_VOICE_UPLINK: 1249 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1250 break; 1251 case AUDIO_SOURCE_VOICE_DOWNLINK: 1252 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1253 break; 1254 case AUDIO_SOURCE_VOICE_CALL: 1255 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1256 break; 1257 default: 1258 break; 1259 } 1260 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1261 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1262 if (index >= 0) { 1263 *input = mSoundTriggerSessions.valueFor(session); 1264 isSoundTrigger = true; 1265 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1266 ALOGV("SoundTrigger capture on session %d input %d", session, *input); 1267 } else { 1268 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1269 } 1270 } 1271 } 1272 1273 sp<IOProfile> profile = getInputProfile(device, address, 1274 samplingRate, format, channelMask, 1275 flags); 1276 if (profile == 0) { 1277 //retry without flags 1278 audio_input_flags_t log_flags = flags; 1279 flags = AUDIO_INPUT_FLAG_NONE; 1280 profile = getInputProfile(device, address, 1281 samplingRate, format, channelMask, 1282 flags); 1283 if (profile == 0) { 1284 ALOGW("getInputForAttr() could not find profile for device 0x%X, samplingRate %u," 1285 "format %#x, channelMask 0x%X, flags %#x", 1286 device, samplingRate, format, channelMask, log_flags); 1287 return BAD_VALUE; 1288 } 1289 } 1290 1291 if (profile->getModuleHandle() == 0) { 1292 ALOGE("getInputForAttr(): HW module %s not opened", profile->getModuleName()); 1293 return NO_INIT; 1294 } 1295 1296 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1297 config.sample_rate = samplingRate; 1298 config.channel_mask = channelMask; 1299 config.format = format; 1300 1301 status_t status = mpClientInterface->openInput(profile->getModuleHandle(), 1302 input, 1303 &config, 1304 &device, 1305 address, 1306 halInputSource, 1307 flags); 1308 1309 // only accept input with the exact requested set of parameters 1310 if (status != NO_ERROR || *input == AUDIO_IO_HANDLE_NONE || 1311 (samplingRate != config.sample_rate) || 1312 (format != config.format) || 1313 (channelMask != config.channel_mask)) { 1314 ALOGW("getInputForAttr() failed opening input: samplingRate %d, format %d, channelMask %x", 1315 samplingRate, format, channelMask); 1316 if (*input != AUDIO_IO_HANDLE_NONE) { 1317 mpClientInterface->closeInput(*input); 1318 } 1319 return BAD_VALUE; 1320 } 1321 1322 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1323 inputDesc->mInputSource = inputSource; 1324 inputDesc->mRefCount = 0; 1325 inputDesc->mOpenRefCount = 1; 1326 inputDesc->mSamplingRate = samplingRate; 1327 inputDesc->mFormat = format; 1328 inputDesc->mChannelMask = channelMask; 1329 inputDesc->mDevice = device; 1330 inputDesc->mSessions.add(session); 1331 inputDesc->mIsSoundTrigger = isSoundTrigger; 1332 inputDesc->mPolicyMix = policyMix; 1333 1334 ALOGV("getInputForAttr() returns input type = %d", inputType); 1335 1336 addInput(*input, inputDesc); 1337 mpClientInterface->onAudioPortListUpdate(); 1338 return NO_ERROR; 1339} 1340 1341status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1342 audio_session_t session) 1343{ 1344 ALOGV("startInput() input %d", input); 1345 ssize_t index = mInputs.indexOfKey(input); 1346 if (index < 0) { 1347 ALOGW("startInput() unknown input %d", input); 1348 return BAD_VALUE; 1349 } 1350 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1351 1352 index = inputDesc->mSessions.indexOf(session); 1353 if (index < 0) { 1354 ALOGW("startInput() unknown session %d on input %d", session, input); 1355 return BAD_VALUE; 1356 } 1357 1358 // virtual input devices are compatible with other input devices 1359 if (!is_virtual_input_device(inputDesc->mDevice)) { 1360 1361 // for a non-virtual input device, check if there is another (non-virtual) active input 1362 audio_io_handle_t activeInput = mInputs.getActiveInput(); 1363 if (activeInput != 0 && activeInput != input) { 1364 1365 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1366 // otherwise the active input continues and the new input cannot be started. 1367 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1368 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1369 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1370 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1371 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1372 } else { 1373 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1374 return INVALID_OPERATION; 1375 } 1376 } 1377 } 1378 1379 if (inputDesc->mRefCount == 0) { 1380 if (mInputs.activeInputsCount() == 0) { 1381 SoundTrigger::setCaptureState(true); 1382 } 1383 setInputDevice(input, getNewInputDevice(input), true /* force */); 1384 1385 // automatically enable the remote submix output when input is started if not 1386 // used by a policy mix of type MIX_TYPE_RECORDERS 1387 // For remote submix (a virtual device), we open only one input per capture request. 1388 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1389 String8 address = String8(""); 1390 if (inputDesc->mPolicyMix == NULL) { 1391 address = String8("0"); 1392 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1393 address = inputDesc->mPolicyMix->mRegistrationId; 1394 } 1395 if (address != "") { 1396 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1397 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1398 address, "remote-submix"); 1399 } 1400 } 1401 } 1402 1403 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1404 1405 inputDesc->mRefCount++; 1406 return NO_ERROR; 1407} 1408 1409status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1410 audio_session_t session) 1411{ 1412 ALOGV("stopInput() input %d", input); 1413 ssize_t index = mInputs.indexOfKey(input); 1414 if (index < 0) { 1415 ALOGW("stopInput() unknown input %d", input); 1416 return BAD_VALUE; 1417 } 1418 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1419 1420 index = inputDesc->mSessions.indexOf(session); 1421 if (index < 0) { 1422 ALOGW("stopInput() unknown session %d on input %d", session, input); 1423 return BAD_VALUE; 1424 } 1425 1426 if (inputDesc->mRefCount == 0) { 1427 ALOGW("stopInput() input %d already stopped", input); 1428 return INVALID_OPERATION; 1429 } 1430 1431 inputDesc->mRefCount--; 1432 if (inputDesc->mRefCount == 0) { 1433 1434 // automatically disable the remote submix output when input is stopped if not 1435 // used by a policy mix of type MIX_TYPE_RECORDERS 1436 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1437 String8 address = String8(""); 1438 if (inputDesc->mPolicyMix == NULL) { 1439 address = String8("0"); 1440 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1441 address = inputDesc->mPolicyMix->mRegistrationId; 1442 } 1443 if (address != "") { 1444 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1445 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1446 address, "remote-submix"); 1447 } 1448 } 1449 1450 resetInputDevice(input); 1451 1452 if (mInputs.activeInputsCount() == 0) { 1453 SoundTrigger::setCaptureState(false); 1454 } 1455 } 1456 return NO_ERROR; 1457} 1458 1459void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1460 audio_session_t session) 1461{ 1462 ALOGV("releaseInput() %d", input); 1463 ssize_t index = mInputs.indexOfKey(input); 1464 if (index < 0) { 1465 ALOGW("releaseInput() releasing unknown input %d", input); 1466 return; 1467 } 1468 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1469 ALOG_ASSERT(inputDesc != 0); 1470 1471 index = inputDesc->mSessions.indexOf(session); 1472 if (index < 0) { 1473 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1474 return; 1475 } 1476 inputDesc->mSessions.remove(session); 1477 if (inputDesc->mOpenRefCount == 0) { 1478 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1479 return; 1480 } 1481 inputDesc->mOpenRefCount--; 1482 if (inputDesc->mOpenRefCount > 0) { 1483 ALOGV("releaseInput() exit > 0"); 1484 return; 1485 } 1486 1487 closeInput(input); 1488 mpClientInterface->onAudioPortListUpdate(); 1489 ALOGV("releaseInput() exit"); 1490} 1491 1492void AudioPolicyManager::closeAllInputs() { 1493 bool patchRemoved = false; 1494 1495 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1496 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1497 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1498 if (patch_index >= 0) { 1499 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1500 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1501 mAudioPatches.removeItemsAt(patch_index); 1502 patchRemoved = true; 1503 } 1504 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1505 } 1506 mInputs.clear(); 1507 nextAudioPortGeneration(); 1508 1509 if (patchRemoved) { 1510 mpClientInterface->onAudioPatchListUpdate(); 1511 } 1512} 1513 1514void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1515 int indexMin, 1516 int indexMax) 1517{ 1518 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1519 mEngine->initStreamVolume(stream, indexMin, indexMax); 1520 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1521 if (stream == AUDIO_STREAM_MUSIC) { 1522 mEngine->initStreamVolume(AUDIO_STREAM_ACCESSIBILITY, indexMin, indexMax); 1523 } 1524} 1525 1526status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1527 int index, 1528 audio_devices_t device) 1529{ 1530 1531 if ((index < mStreams[stream].getVolumeIndexMin()) || 1532 (index > mStreams[stream].getVolumeIndexMax())) { 1533 return BAD_VALUE; 1534 } 1535 if (!audio_is_output_device(device)) { 1536 return BAD_VALUE; 1537 } 1538 1539 // Force max volume if stream cannot be muted 1540 if (!mStreams.canBeMuted(stream)) index = mStreams[stream].getVolumeIndexMax(); 1541 1542 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1543 stream, device, index); 1544 1545 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1546 // clear all device specific values 1547 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1548 mStreams.clearCurrentVolumeIndex(stream); 1549 } 1550 mStreams.addCurrentVolumeIndex(stream, device, index); 1551 1552 // update volume on all outputs whose current device is also selected by the same 1553 // strategy as the device specified by the caller 1554 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1555 1556 1557 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1558 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1559 if (stream == AUDIO_STREAM_MUSIC) { 1560 mStreams.addCurrentVolumeIndex(AUDIO_STREAM_ACCESSIBILITY, device, index); 1561 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1562 } 1563 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1564 (device & (strategyDevice | accessibilityDevice)) == 0) { 1565 return NO_ERROR; 1566 } 1567 status_t status = NO_ERROR; 1568 for (size_t i = 0; i < mOutputs.size(); i++) { 1569 audio_devices_t curDevice = Volume::getDeviceForVolume(mOutputs.valueAt(i)->device()); 1570 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1571 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1572 if (volStatus != NO_ERROR) { 1573 status = volStatus; 1574 } 1575 } 1576 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0)) { 1577 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1578 index, mOutputs.keyAt(i), curDevice); 1579 } 1580 } 1581 return status; 1582} 1583 1584status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1585 int *index, 1586 audio_devices_t device) 1587{ 1588 if (index == NULL) { 1589 return BAD_VALUE; 1590 } 1591 if (!audio_is_output_device(device)) { 1592 return BAD_VALUE; 1593 } 1594 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1595 // the strategy the stream belongs to. 1596 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1597 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1598 } 1599 device = Volume::getDeviceForVolume(device); 1600 1601 *index = mStreams[stream].getVolumeIndex(device); 1602 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1603 return NO_ERROR; 1604} 1605 1606audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1607 const SortedVector<audio_io_handle_t>& outputs) 1608{ 1609 // select one output among several suitable for global effects. 1610 // The priority is as follows: 1611 // 1: An offloaded output. If the effect ends up not being offloadable, 1612 // AudioFlinger will invalidate the track and the offloaded output 1613 // will be closed causing the effect to be moved to a PCM output. 1614 // 2: A deep buffer output 1615 // 3: the first output in the list 1616 1617 if (outputs.size() == 0) { 1618 return 0; 1619 } 1620 1621 audio_io_handle_t outputOffloaded = 0; 1622 audio_io_handle_t outputDeepBuffer = 0; 1623 1624 for (size_t i = 0; i < outputs.size(); i++) { 1625 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1626 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1627 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1628 outputOffloaded = outputs[i]; 1629 } 1630 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1631 outputDeepBuffer = outputs[i]; 1632 } 1633 } 1634 1635 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1636 outputOffloaded, outputDeepBuffer); 1637 if (outputOffloaded != 0) { 1638 return outputOffloaded; 1639 } 1640 if (outputDeepBuffer != 0) { 1641 return outputDeepBuffer; 1642 } 1643 1644 return outputs[0]; 1645} 1646 1647audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1648{ 1649 // apply simple rule where global effects are attached to the same output as MUSIC streams 1650 1651 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1652 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1653 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1654 1655 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1656 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1657 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1658 1659 return output; 1660} 1661 1662status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1663 audio_io_handle_t io, 1664 uint32_t strategy, 1665 int session, 1666 int id) 1667{ 1668 ssize_t index = mOutputs.indexOfKey(io); 1669 if (index < 0) { 1670 index = mInputs.indexOfKey(io); 1671 if (index < 0) { 1672 ALOGW("registerEffect() unknown io %d", io); 1673 return INVALID_OPERATION; 1674 } 1675 } 1676 return mEffects.registerEffect(desc, io, strategy, session, id); 1677} 1678 1679bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1680{ 1681 for (size_t i = 0; i < mInputs.size(); i++) { 1682 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1683 if (inputDescriptor->mRefCount == 0) { 1684 continue; 1685 } 1686 if (inputDescriptor->mInputSource == (int)source) { 1687 return true; 1688 } 1689 // AUDIO_SOURCE_HOTWORD is equivalent to AUDIO_SOURCE_VOICE_RECOGNITION only if it 1690 // corresponds to an active capture triggered by a hardware hotword recognition 1691 if ((source == AUDIO_SOURCE_VOICE_RECOGNITION) && 1692 (inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) { 1693 // FIXME: we should not assume that the first session is the active one and keep 1694 // activity count per session. Same in startInput(). 1695 ssize_t index = mSoundTriggerSessions.indexOfKey(inputDescriptor->mSessions.itemAt(0)); 1696 if (index >= 0) { 1697 return true; 1698 } 1699 } 1700 } 1701 return false; 1702} 1703 1704// Register a list of custom mixes with their attributes and format. 1705// When a mix is registered, corresponding input and output profiles are 1706// added to the remote submix hw module. The profile contains only the 1707// parameters (sampling rate, format...) specified by the mix. 1708// The corresponding input remote submix device is also connected. 1709// 1710// When a remote submix device is connected, the address is checked to select the 1711// appropriate profile and the corresponding input or output stream is opened. 1712// 1713// When capture starts, getInputForAttr() will: 1714// - 1 look for a mix matching the address passed in attribtutes tags if any 1715// - 2 if none found, getDeviceForInputSource() will: 1716// - 2.1 look for a mix matching the attributes source 1717// - 2.2 if none found, default to device selection by policy rules 1718// At this time, the corresponding output remote submix device is also connected 1719// and active playback use cases can be transferred to this mix if needed when reconnecting 1720// after AudioTracks are invalidated 1721// 1722// When playback starts, getOutputForAttr() will: 1723// - 1 look for a mix matching the address passed in attribtutes tags if any 1724// - 2 if none found, look for a mix matching the attributes usage 1725// - 3 if none found, default to device and output selection by policy rules. 1726 1727status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes) 1728{ 1729 sp<HwModule> module; 1730 for (size_t i = 0; i < mHwModules.size(); i++) { 1731 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 1732 mHwModules[i]->mHandle != 0) { 1733 module = mHwModules[i]; 1734 break; 1735 } 1736 } 1737 1738 if (module == 0) { 1739 return INVALID_OPERATION; 1740 } 1741 1742 ALOGV("registerPolicyMixes() num mixes %d", mixes.size()); 1743 1744 for (size_t i = 0; i < mixes.size(); i++) { 1745 String8 address = mixes[i].mRegistrationId; 1746 1747 if (mPolicyMixes.registerMix(address, mixes[i]) != NO_ERROR) { 1748 continue; 1749 } 1750 audio_config_t outputConfig = mixes[i].mFormat; 1751 audio_config_t inputConfig = mixes[i].mFormat; 1752 // NOTE: audio flinger mixer does not support mono output: configure remote submix HAL in 1753 // stereo and let audio flinger do the channel conversion if needed. 1754 outputConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO; 1755 inputConfig.channel_mask = AUDIO_CHANNEL_IN_STEREO; 1756 module->addOutputProfile(address, &outputConfig, 1757 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address); 1758 module->addInputProfile(address, &inputConfig, 1759 AUDIO_DEVICE_IN_REMOTE_SUBMIX, address); 1760 1761 if (mixes[i].mMixType == MIX_TYPE_PLAYERS) { 1762 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1763 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1764 address.string(), "remote-submix"); 1765 } else { 1766 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1767 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1768 address.string(), "remote-submix"); 1769 } 1770 } 1771 return NO_ERROR; 1772} 1773 1774status_t AudioPolicyManager::unregisterPolicyMixes(Vector<AudioMix> mixes) 1775{ 1776 sp<HwModule> module; 1777 for (size_t i = 0; i < mHwModules.size(); i++) { 1778 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 1779 mHwModules[i]->mHandle != 0) { 1780 module = mHwModules[i]; 1781 break; 1782 } 1783 } 1784 1785 if (module == 0) { 1786 return INVALID_OPERATION; 1787 } 1788 1789 ALOGV("unregisterPolicyMixes() num mixes %d", mixes.size()); 1790 1791 for (size_t i = 0; i < mixes.size(); i++) { 1792 String8 address = mixes[i].mRegistrationId; 1793 1794 if (mPolicyMixes.unregisterMix(address) != NO_ERROR) { 1795 continue; 1796 } 1797 1798 if (getDeviceConnectionState(AUDIO_DEVICE_IN_REMOTE_SUBMIX, address.string()) == 1799 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 1800 { 1801 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1802 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1803 address.string(), "remote-submix"); 1804 } 1805 1806 if (getDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address.string()) == 1807 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 1808 { 1809 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1810 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1811 address.string(), "remote-submix"); 1812 } 1813 module->removeOutputProfile(address); 1814 module->removeInputProfile(address); 1815 } 1816 return NO_ERROR; 1817} 1818 1819 1820status_t AudioPolicyManager::dump(int fd) 1821{ 1822 const size_t SIZE = 256; 1823 char buffer[SIZE]; 1824 String8 result; 1825 1826 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1827 result.append(buffer); 1828 1829 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1830 result.append(buffer); 1831 snprintf(buffer, SIZE, " Phone state: %d\n", mEngine->getPhoneState()); 1832 result.append(buffer); 1833 snprintf(buffer, SIZE, " Force use for communications %d\n", 1834 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION)); 1835 result.append(buffer); 1836 snprintf(buffer, SIZE, " Force use for media %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA)); 1837 result.append(buffer); 1838 snprintf(buffer, SIZE, " Force use for record %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD)); 1839 result.append(buffer); 1840 snprintf(buffer, SIZE, " Force use for dock %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_DOCK)); 1841 result.append(buffer); 1842 snprintf(buffer, SIZE, " Force use for system %d\n", mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM)); 1843 result.append(buffer); 1844 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 1845 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO)); 1846 result.append(buffer); 1847 write(fd, result.string(), result.size()); 1848 1849 mAvailableOutputDevices.dump(fd, String8("output")); 1850 mAvailableInputDevices.dump(fd, String8("input")); 1851 mHwModules.dump(fd); 1852 mOutputs.dump(fd); 1853 mInputs.dump(fd); 1854 mStreams.dump(fd); 1855 mEffects.dump(fd); 1856 mAudioPatches.dump(fd); 1857 1858 return NO_ERROR; 1859} 1860 1861// This function checks for the parameters which can be offloaded. 1862// This can be enhanced depending on the capability of the DSP and policy 1863// of the system. 1864bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 1865{ 1866 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 1867 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 1868 offloadInfo.sample_rate, offloadInfo.channel_mask, 1869 offloadInfo.format, 1870 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 1871 offloadInfo.has_video); 1872 1873 // Check if offload has been disabled 1874 char propValue[PROPERTY_VALUE_MAX]; 1875 if (property_get("audio.offload.disable", propValue, "0")) { 1876 if (atoi(propValue) != 0) { 1877 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 1878 return false; 1879 } 1880 } 1881 1882 // Check if stream type is music, then only allow offload as of now. 1883 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 1884 { 1885 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 1886 return false; 1887 } 1888 1889 //TODO: enable audio offloading with video when ready 1890 if (offloadInfo.has_video) 1891 { 1892 ALOGV("isOffloadSupported: has_video == true, returning false"); 1893 return false; 1894 } 1895 1896 //If duration is less than minimum value defined in property, return false 1897 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 1898 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 1899 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 1900 return false; 1901 } 1902 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 1903 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 1904 return false; 1905 } 1906 1907 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1908 // creating an offloaded track and tearing it down immediately after start when audioflinger 1909 // detects there is an active non offloadable effect. 1910 // FIXME: We should check the audio session here but we do not have it in this context. 1911 // This may prevent offloading in rare situations where effects are left active by apps 1912 // in the background. 1913 if (mEffects.isNonOffloadableEffectEnabled()) { 1914 return false; 1915 } 1916 1917 // See if there is a profile to support this. 1918 // AUDIO_DEVICE_NONE 1919 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 1920 offloadInfo.sample_rate, 1921 offloadInfo.format, 1922 offloadInfo.channel_mask, 1923 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 1924 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 1925 return (profile != 0); 1926} 1927 1928status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 1929 audio_port_type_t type, 1930 unsigned int *num_ports, 1931 struct audio_port *ports, 1932 unsigned int *generation) 1933{ 1934 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 1935 generation == NULL) { 1936 return BAD_VALUE; 1937 } 1938 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 1939 if (ports == NULL) { 1940 *num_ports = 0; 1941 } 1942 1943 size_t portsWritten = 0; 1944 size_t portsMax = *num_ports; 1945 *num_ports = 0; 1946 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 1947 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1948 for (size_t i = 0; 1949 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 1950 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 1951 } 1952 *num_ports += mAvailableOutputDevices.size(); 1953 } 1954 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1955 for (size_t i = 0; 1956 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 1957 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 1958 } 1959 *num_ports += mAvailableInputDevices.size(); 1960 } 1961 } 1962 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 1963 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1964 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 1965 mInputs[i]->toAudioPort(&ports[portsWritten++]); 1966 } 1967 *num_ports += mInputs.size(); 1968 } 1969 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1970 size_t numOutputs = 0; 1971 for (size_t i = 0; i < mOutputs.size(); i++) { 1972 if (!mOutputs[i]->isDuplicated()) { 1973 numOutputs++; 1974 if (portsWritten < portsMax) { 1975 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 1976 } 1977 } 1978 } 1979 *num_ports += numOutputs; 1980 } 1981 } 1982 *generation = curAudioPortGeneration(); 1983 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 1984 return NO_ERROR; 1985} 1986 1987status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 1988{ 1989 return NO_ERROR; 1990} 1991 1992status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 1993 audio_patch_handle_t *handle, 1994 uid_t uid) 1995{ 1996 ALOGV("createAudioPatch()"); 1997 1998 if (handle == NULL || patch == NULL) { 1999 return BAD_VALUE; 2000 } 2001 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2002 2003 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2004 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2005 return BAD_VALUE; 2006 } 2007 // only one source per audio patch supported for now 2008 if (patch->num_sources > 1) { 2009 return INVALID_OPERATION; 2010 } 2011 2012 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2013 return INVALID_OPERATION; 2014 } 2015 for (size_t i = 0; i < patch->num_sinks; i++) { 2016 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2017 return INVALID_OPERATION; 2018 } 2019 } 2020 2021 sp<AudioPatch> patchDesc; 2022 ssize_t index = mAudioPatches.indexOfKey(*handle); 2023 2024 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2025 patch->sources[0].role, 2026 patch->sources[0].type); 2027#if LOG_NDEBUG == 0 2028 for (size_t i = 0; i < patch->num_sinks; i++) { 2029 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2030 patch->sinks[i].role, 2031 patch->sinks[i].type); 2032 } 2033#endif 2034 2035 if (index >= 0) { 2036 patchDesc = mAudioPatches.valueAt(index); 2037 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2038 mUidCached, patchDesc->mUid, uid); 2039 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2040 return INVALID_OPERATION; 2041 } 2042 } else { 2043 *handle = 0; 2044 } 2045 2046 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2047 sp<AudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(patch->sources[0].id); 2048 if (outputDesc == NULL) { 2049 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2050 return BAD_VALUE; 2051 } 2052 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2053 outputDesc->mIoHandle); 2054 if (patchDesc != 0) { 2055 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2056 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2057 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2058 return BAD_VALUE; 2059 } 2060 } 2061 DeviceVector devices; 2062 for (size_t i = 0; i < patch->num_sinks; i++) { 2063 // Only support mix to devices connection 2064 // TODO add support for mix to mix connection 2065 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2066 ALOGV("createAudioPatch() source mix but sink is not a device"); 2067 return INVALID_OPERATION; 2068 } 2069 sp<DeviceDescriptor> devDesc = 2070 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2071 if (devDesc == 0) { 2072 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2073 return BAD_VALUE; 2074 } 2075 2076 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->type(), 2077 devDesc->mAddress, 2078 patch->sources[0].sample_rate, 2079 NULL, // updatedSamplingRate 2080 patch->sources[0].format, 2081 patch->sources[0].channel_mask, 2082 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2083 ALOGV("createAudioPatch() profile not supported for device %08x", devDesc->type()); 2084 return INVALID_OPERATION; 2085 } 2086 devices.add(devDesc); 2087 } 2088 if (devices.size() == 0) { 2089 return INVALID_OPERATION; 2090 } 2091 2092 // TODO: reconfigure output format and channels here 2093 ALOGV("createAudioPatch() setting device %08x on output %d", 2094 devices.types(), outputDesc->mIoHandle); 2095 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2096 index = mAudioPatches.indexOfKey(*handle); 2097 if (index >= 0) { 2098 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2099 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2100 } 2101 patchDesc = mAudioPatches.valueAt(index); 2102 patchDesc->mUid = uid; 2103 ALOGV("createAudioPatch() success"); 2104 } else { 2105 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2106 return INVALID_OPERATION; 2107 } 2108 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2109 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2110 // input device to input mix connection 2111 // only one sink supported when connecting an input device to a mix 2112 if (patch->num_sinks > 1) { 2113 return INVALID_OPERATION; 2114 } 2115 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(patch->sinks[0].id); 2116 if (inputDesc == NULL) { 2117 return BAD_VALUE; 2118 } 2119 if (patchDesc != 0) { 2120 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2121 return BAD_VALUE; 2122 } 2123 } 2124 sp<DeviceDescriptor> devDesc = 2125 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2126 if (devDesc == 0) { 2127 return BAD_VALUE; 2128 } 2129 2130 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->type(), 2131 devDesc->mAddress, 2132 patch->sinks[0].sample_rate, 2133 NULL, /*updatedSampleRate*/ 2134 patch->sinks[0].format, 2135 patch->sinks[0].channel_mask, 2136 // FIXME for the parameter type, 2137 // and the NONE 2138 (audio_output_flags_t) 2139 AUDIO_INPUT_FLAG_NONE)) { 2140 return INVALID_OPERATION; 2141 } 2142 // TODO: reconfigure output format and channels here 2143 ALOGV("createAudioPatch() setting device %08x on output %d", 2144 devDesc->type(), inputDesc->mIoHandle); 2145 setInputDevice(inputDesc->mIoHandle, devDesc->type(), true, handle); 2146 index = mAudioPatches.indexOfKey(*handle); 2147 if (index >= 0) { 2148 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2149 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2150 } 2151 patchDesc = mAudioPatches.valueAt(index); 2152 patchDesc->mUid = uid; 2153 ALOGV("createAudioPatch() success"); 2154 } else { 2155 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2156 return INVALID_OPERATION; 2157 } 2158 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2159 // device to device connection 2160 if (patchDesc != 0) { 2161 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2162 return BAD_VALUE; 2163 } 2164 } 2165 sp<DeviceDescriptor> srcDeviceDesc = 2166 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2167 if (srcDeviceDesc == 0) { 2168 return BAD_VALUE; 2169 } 2170 2171 //update source and sink with our own data as the data passed in the patch may 2172 // be incomplete. 2173 struct audio_patch newPatch = *patch; 2174 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2175 2176 for (size_t i = 0; i < patch->num_sinks; i++) { 2177 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2178 ALOGV("createAudioPatch() source device but one sink is not a device"); 2179 return INVALID_OPERATION; 2180 } 2181 2182 sp<DeviceDescriptor> sinkDeviceDesc = 2183 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2184 if (sinkDeviceDesc == 0) { 2185 return BAD_VALUE; 2186 } 2187 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2188 2189 // create a software bridge in PatchPanel if: 2190 // - source and sink devices are on differnt HW modules OR 2191 // - audio HAL version is < 3.0 2192 if ((srcDeviceDesc->getModuleHandle() != sinkDeviceDesc->getModuleHandle()) || 2193 (srcDeviceDesc->mModule->mHalVersion < AUDIO_DEVICE_API_VERSION_3_0)) { 2194 // support only one sink device for now to simplify output selection logic 2195 if (patch->num_sinks > 1) { 2196 return INVALID_OPERATION; 2197 } 2198 SortedVector<audio_io_handle_t> outputs = 2199 getOutputsForDevice(sinkDeviceDesc->type(), mOutputs); 2200 // if the sink device is reachable via an opened output stream, request to go via 2201 // this output stream by adding a second source to the patch description 2202 audio_io_handle_t output = selectOutput(outputs, 2203 AUDIO_OUTPUT_FLAG_NONE, 2204 AUDIO_FORMAT_INVALID); 2205 if (output != AUDIO_IO_HANDLE_NONE) { 2206 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2207 if (outputDesc->isDuplicated()) { 2208 return INVALID_OPERATION; 2209 } 2210 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2211 newPatch.sources[1].ext.mix.usecase.stream = AUDIO_STREAM_PATCH; 2212 newPatch.num_sources = 2; 2213 } 2214 } 2215 } 2216 // TODO: check from routing capabilities in config file and other conflicting patches 2217 2218 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2219 if (index >= 0) { 2220 afPatchHandle = patchDesc->mAfPatchHandle; 2221 } 2222 2223 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2224 &afPatchHandle, 2225 0); 2226 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2227 status, afPatchHandle); 2228 if (status == NO_ERROR) { 2229 if (index < 0) { 2230 patchDesc = new AudioPatch(&newPatch, uid); 2231 addAudioPatch(patchDesc->mHandle, patchDesc); 2232 } else { 2233 patchDesc->mPatch = newPatch; 2234 } 2235 patchDesc->mAfPatchHandle = afPatchHandle; 2236 *handle = patchDesc->mHandle; 2237 nextAudioPortGeneration(); 2238 mpClientInterface->onAudioPatchListUpdate(); 2239 } else { 2240 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2241 status); 2242 return INVALID_OPERATION; 2243 } 2244 } else { 2245 return BAD_VALUE; 2246 } 2247 } else { 2248 return BAD_VALUE; 2249 } 2250 return NO_ERROR; 2251} 2252 2253status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2254 uid_t uid) 2255{ 2256 ALOGV("releaseAudioPatch() patch %d", handle); 2257 2258 ssize_t index = mAudioPatches.indexOfKey(handle); 2259 2260 if (index < 0) { 2261 return BAD_VALUE; 2262 } 2263 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2264 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2265 mUidCached, patchDesc->mUid, uid); 2266 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2267 return INVALID_OPERATION; 2268 } 2269 2270 struct audio_patch *patch = &patchDesc->mPatch; 2271 patchDesc->mUid = mUidCached; 2272 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2273 sp<AudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(patch->sources[0].id); 2274 if (outputDesc == NULL) { 2275 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2276 return BAD_VALUE; 2277 } 2278 2279 setOutputDevice(outputDesc->mIoHandle, 2280 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2281 true, 2282 0, 2283 NULL); 2284 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2285 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2286 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(patch->sinks[0].id); 2287 if (inputDesc == NULL) { 2288 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2289 return BAD_VALUE; 2290 } 2291 setInputDevice(inputDesc->mIoHandle, 2292 getNewInputDevice(inputDesc->mIoHandle), 2293 true, 2294 NULL); 2295 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2296 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2297 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2298 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2299 status, patchDesc->mAfPatchHandle); 2300 removeAudioPatch(patchDesc->mHandle); 2301 nextAudioPortGeneration(); 2302 mpClientInterface->onAudioPatchListUpdate(); 2303 } else { 2304 return BAD_VALUE; 2305 } 2306 } else { 2307 return BAD_VALUE; 2308 } 2309 return NO_ERROR; 2310} 2311 2312status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2313 struct audio_patch *patches, 2314 unsigned int *generation) 2315{ 2316 if (generation == NULL) { 2317 return BAD_VALUE; 2318 } 2319 *generation = curAudioPortGeneration(); 2320 return mAudioPatches.listAudioPatches(num_patches, patches); 2321} 2322 2323status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2324{ 2325 ALOGV("setAudioPortConfig()"); 2326 2327 if (config == NULL) { 2328 return BAD_VALUE; 2329 } 2330 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2331 // Only support gain configuration for now 2332 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2333 return INVALID_OPERATION; 2334 } 2335 2336 sp<AudioPortConfig> audioPortConfig; 2337 if (config->type == AUDIO_PORT_TYPE_MIX) { 2338 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2339 sp<AudioOutputDescriptor> outputDesc = mOutputs.getOutputFromId(config->id); 2340 if (outputDesc == NULL) { 2341 return BAD_VALUE; 2342 } 2343 ALOG_ASSERT(!outputDesc->isDuplicated(), 2344 "setAudioPortConfig() called on duplicated output %d", 2345 outputDesc->mIoHandle); 2346 audioPortConfig = outputDesc; 2347 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2348 sp<AudioInputDescriptor> inputDesc = mInputs.getInputFromId(config->id); 2349 if (inputDesc == NULL) { 2350 return BAD_VALUE; 2351 } 2352 audioPortConfig = inputDesc; 2353 } else { 2354 return BAD_VALUE; 2355 } 2356 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2357 sp<DeviceDescriptor> deviceDesc; 2358 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2359 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2360 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2361 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2362 } else { 2363 return BAD_VALUE; 2364 } 2365 if (deviceDesc == NULL) { 2366 return BAD_VALUE; 2367 } 2368 audioPortConfig = deviceDesc; 2369 } else { 2370 return BAD_VALUE; 2371 } 2372 2373 struct audio_port_config backupConfig; 2374 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2375 if (status == NO_ERROR) { 2376 struct audio_port_config newConfig; 2377 audioPortConfig->toAudioPortConfig(&newConfig, config); 2378 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2379 } 2380 if (status != NO_ERROR) { 2381 audioPortConfig->applyAudioPortConfig(&backupConfig); 2382 } 2383 2384 return status; 2385} 2386 2387void AudioPolicyManager::clearAudioPatches(uid_t uid) 2388{ 2389 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 2390 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2391 if (patchDesc->mUid == uid) { 2392 releaseAudioPatch(mAudioPatches.keyAt(i), uid); 2393 } 2394 } 2395} 2396 2397status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2398 audio_io_handle_t *ioHandle, 2399 audio_devices_t *device) 2400{ 2401 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2402 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2403 *device = getDeviceAndMixForInputSource(AUDIO_SOURCE_HOTWORD); 2404 2405 return mSoundTriggerSessions.acquireSession(*session, *ioHandle); 2406} 2407 2408// ---------------------------------------------------------------------------- 2409// AudioPolicyManager 2410// ---------------------------------------------------------------------------- 2411uint32_t AudioPolicyManager::nextAudioPortGeneration() 2412{ 2413 return android_atomic_inc(&mAudioPortGeneration); 2414} 2415 2416AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2417 : 2418#ifdef AUDIO_POLICY_TEST 2419 Thread(false), 2420#endif //AUDIO_POLICY_TEST 2421 mPrimaryOutput((audio_io_handle_t)0), 2422 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2423 mA2dpSuspended(false), 2424 mSpeakerDrcEnabled(false), 2425 mAudioPortGeneration(1), 2426 mBeaconMuteRefCount(0), 2427 mBeaconPlayingRefCount(0), 2428 mBeaconMuted(false) 2429{ 2430 audio_policy::EngineInstance *engineInstance = audio_policy::EngineInstance::getInstance(); 2431 if (!engineInstance) { 2432 ALOGE("%s: Could not get an instance of policy engine", __FUNCTION__); 2433 return; 2434 } 2435 // Retrieve the Policy Manager Interface 2436 mEngine = engineInstance->queryInterface<AudioPolicyManagerInterface>(); 2437 if (mEngine == NULL) { 2438 ALOGE("%s: Failed to get Policy Engine Interface", __FUNCTION__); 2439 return; 2440 } 2441 mEngine->setObserver(this); 2442 status_t status = mEngine->initCheck(); 2443 ALOG_ASSERT(status == NO_ERROR, "Policy engine not initialized(err=%d)", status); 2444 2445 mUidCached = getuid(); 2446 mpClientInterface = clientInterface; 2447 2448 mDefaultOutputDevice = new DeviceDescriptor(String8("Speaker"), AUDIO_DEVICE_OUT_SPEAKER); 2449 if (ConfigParsingUtils::loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE, 2450 mHwModules, mAvailableInputDevices, mAvailableOutputDevices, 2451 mDefaultOutputDevice, mSpeakerDrcEnabled) != NO_ERROR) { 2452 if (ConfigParsingUtils::loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE, 2453 mHwModules, mAvailableInputDevices, mAvailableOutputDevices, 2454 mDefaultOutputDevice, mSpeakerDrcEnabled) != NO_ERROR) { 2455 ALOGE("could not load audio policy configuration file, setting defaults"); 2456 defaultAudioPolicyConfig(); 2457 } 2458 } 2459 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2460 2461 // must be done after reading the policy (since conditionned by Speaker Drc Enabling) 2462 mEngine->initializeVolumeCurves(mSpeakerDrcEnabled); 2463 2464 // open all output streams needed to access attached devices 2465 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2466 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2467 for (size_t i = 0; i < mHwModules.size(); i++) { 2468 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2469 if (mHwModules[i]->mHandle == 0) { 2470 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2471 continue; 2472 } 2473 // open all output streams needed to access attached devices 2474 // except for direct output streams that are only opened when they are actually 2475 // required by an app. 2476 // This also validates mAvailableOutputDevices list 2477 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2478 { 2479 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2480 2481 if (outProfile->mSupportedDevices.isEmpty()) { 2482 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2483 continue; 2484 } 2485 2486 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 2487 continue; 2488 } 2489 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 2490 if ((profileType & mDefaultOutputDevice->type()) != AUDIO_DEVICE_NONE) { 2491 profileType = mDefaultOutputDevice->type(); 2492 } else { 2493 // chose first device present in mSupportedDevices also part of 2494 // outputDeviceTypes 2495 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2496 profileType = outProfile->mSupportedDevices[k]->type(); 2497 if ((profileType & outputDeviceTypes) != 0) { 2498 break; 2499 } 2500 } 2501 } 2502 if ((profileType & outputDeviceTypes) == 0) { 2503 continue; 2504 } 2505 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 2506 2507 outputDesc->mDevice = profileType; 2508 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2509 config.sample_rate = outputDesc->mSamplingRate; 2510 config.channel_mask = outputDesc->mChannelMask; 2511 config.format = outputDesc->mFormat; 2512 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2513 status_t status = mpClientInterface->openOutput(outProfile->getModuleHandle(), 2514 &output, 2515 &config, 2516 &outputDesc->mDevice, 2517 String8(""), 2518 &outputDesc->mLatency, 2519 outputDesc->mFlags); 2520 2521 if (status != NO_ERROR) { 2522 ALOGW("Cannot open output stream for device %08x on hw module %s", 2523 outputDesc->mDevice, 2524 mHwModules[i]->mName); 2525 } else { 2526 outputDesc->mSamplingRate = config.sample_rate; 2527 outputDesc->mChannelMask = config.channel_mask; 2528 outputDesc->mFormat = config.format; 2529 2530 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2531 audio_devices_t type = outProfile->mSupportedDevices[k]->type(); 2532 ssize_t index = 2533 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2534 // give a valid ID to an attached device once confirmed it is reachable 2535 if (index >= 0 && !mAvailableOutputDevices[index]->isAttached()) { 2536 mAvailableOutputDevices[index]->attach(mHwModules[i]); 2537 } 2538 } 2539 if (mPrimaryOutput == 0 && 2540 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2541 mPrimaryOutput = output; 2542 } 2543 addOutput(output, outputDesc); 2544 setOutputDevice(output, 2545 outputDesc->mDevice, 2546 true); 2547 } 2548 } 2549 // open input streams needed to access attached devices to validate 2550 // mAvailableInputDevices list 2551 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2552 { 2553 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2554 2555 if (inProfile->mSupportedDevices.isEmpty()) { 2556 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2557 continue; 2558 } 2559 // chose first device present in mSupportedDevices also part of 2560 // inputDeviceTypes 2561 audio_devices_t profileType = AUDIO_DEVICE_NONE; 2562 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2563 profileType = inProfile->mSupportedDevices[k]->type(); 2564 if (profileType & inputDeviceTypes) { 2565 break; 2566 } 2567 } 2568 if ((profileType & inputDeviceTypes) == 0) { 2569 continue; 2570 } 2571 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2572 2573 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2574 inputDesc->mDevice = profileType; 2575 2576 // find the address 2577 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 2578 // the inputs vector must be of size 1, but we don't want to crash here 2579 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 2580 : String8(""); 2581 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 2582 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 2583 2584 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2585 config.sample_rate = inputDesc->mSamplingRate; 2586 config.channel_mask = inputDesc->mChannelMask; 2587 config.format = inputDesc->mFormat; 2588 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 2589 status_t status = mpClientInterface->openInput(inProfile->getModuleHandle(), 2590 &input, 2591 &config, 2592 &inputDesc->mDevice, 2593 address, 2594 AUDIO_SOURCE_MIC, 2595 AUDIO_INPUT_FLAG_NONE); 2596 2597 if (status == NO_ERROR) { 2598 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2599 audio_devices_t type = inProfile->mSupportedDevices[k]->type(); 2600 ssize_t index = 2601 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2602 // give a valid ID to an attached device once confirmed it is reachable 2603 if (index >= 0 && !mAvailableInputDevices[index]->isAttached()) { 2604 mAvailableInputDevices[index]->attach(mHwModules[i]); 2605 } 2606 } 2607 mpClientInterface->closeInput(input); 2608 } else { 2609 ALOGW("Cannot open input stream for device %08x on hw module %s", 2610 inputDesc->mDevice, 2611 mHwModules[i]->mName); 2612 } 2613 } 2614 } 2615 // make sure all attached devices have been allocated a unique ID 2616 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2617 if (!mAvailableOutputDevices[i]->isAttached()) { 2618 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->type()); 2619 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2620 continue; 2621 } 2622 // The device is now validated and can be appended to the available devices of the engine 2623 mEngine->setDeviceConnectionState(mAvailableOutputDevices[i], 2624 AUDIO_POLICY_DEVICE_STATE_AVAILABLE); 2625 i++; 2626 } 2627 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2628 if (!mAvailableInputDevices[i]->isAttached()) { 2629 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->type()); 2630 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2631 continue; 2632 } 2633 // The device is now validated and can be appended to the available devices of the engine 2634 mEngine->setDeviceConnectionState(mAvailableInputDevices[i], 2635 AUDIO_POLICY_DEVICE_STATE_AVAILABLE); 2636 i++; 2637 } 2638 // make sure default device is reachable 2639 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2640 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->type()); 2641 } 2642 2643 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2644 2645 updateDevicesAndOutputs(); 2646 2647#ifdef AUDIO_POLICY_TEST 2648 if (mPrimaryOutput != 0) { 2649 AudioParameter outputCmd = AudioParameter(); 2650 outputCmd.addInt(String8("set_id"), 0); 2651 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2652 2653 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2654 mTestSamplingRate = 44100; 2655 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2656 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2657 mTestLatencyMs = 0; 2658 mCurOutput = 0; 2659 mDirectOutput = false; 2660 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2661 mTestOutputs[i] = 0; 2662 } 2663 2664 const size_t SIZE = 256; 2665 char buffer[SIZE]; 2666 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2667 run(buffer, ANDROID_PRIORITY_AUDIO); 2668 } 2669#endif //AUDIO_POLICY_TEST 2670} 2671 2672AudioPolicyManager::~AudioPolicyManager() 2673{ 2674#ifdef AUDIO_POLICY_TEST 2675 exit(); 2676#endif //AUDIO_POLICY_TEST 2677 for (size_t i = 0; i < mOutputs.size(); i++) { 2678 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2679 } 2680 for (size_t i = 0; i < mInputs.size(); i++) { 2681 mpClientInterface->closeInput(mInputs.keyAt(i)); 2682 } 2683 mAvailableOutputDevices.clear(); 2684 mAvailableInputDevices.clear(); 2685 mOutputs.clear(); 2686 mInputs.clear(); 2687 mHwModules.clear(); 2688} 2689 2690status_t AudioPolicyManager::initCheck() 2691{ 2692 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2693} 2694 2695#ifdef AUDIO_POLICY_TEST 2696bool AudioPolicyManager::threadLoop() 2697{ 2698 ALOGV("entering threadLoop()"); 2699 while (!exitPending()) 2700 { 2701 String8 command; 2702 int valueInt; 2703 String8 value; 2704 2705 Mutex::Autolock _l(mLock); 2706 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2707 2708 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2709 AudioParameter param = AudioParameter(command); 2710 2711 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2712 valueInt != 0) { 2713 ALOGV("Test command %s received", command.string()); 2714 String8 target; 2715 if (param.get(String8("target"), target) != NO_ERROR) { 2716 target = "Manager"; 2717 } 2718 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2719 param.remove(String8("test_cmd_policy_output")); 2720 mCurOutput = valueInt; 2721 } 2722 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2723 param.remove(String8("test_cmd_policy_direct")); 2724 if (value == "false") { 2725 mDirectOutput = false; 2726 } else if (value == "true") { 2727 mDirectOutput = true; 2728 } 2729 } 2730 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2731 param.remove(String8("test_cmd_policy_input")); 2732 mTestInput = valueInt; 2733 } 2734 2735 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2736 param.remove(String8("test_cmd_policy_format")); 2737 int format = AUDIO_FORMAT_INVALID; 2738 if (value == "PCM 16 bits") { 2739 format = AUDIO_FORMAT_PCM_16_BIT; 2740 } else if (value == "PCM 8 bits") { 2741 format = AUDIO_FORMAT_PCM_8_BIT; 2742 } else if (value == "Compressed MP3") { 2743 format = AUDIO_FORMAT_MP3; 2744 } 2745 if (format != AUDIO_FORMAT_INVALID) { 2746 if (target == "Manager") { 2747 mTestFormat = format; 2748 } else if (mTestOutputs[mCurOutput] != 0) { 2749 AudioParameter outputParam = AudioParameter(); 2750 outputParam.addInt(String8("format"), format); 2751 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2752 } 2753 } 2754 } 2755 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 2756 param.remove(String8("test_cmd_policy_channels")); 2757 int channels = 0; 2758 2759 if (value == "Channels Stereo") { 2760 channels = AUDIO_CHANNEL_OUT_STEREO; 2761 } else if (value == "Channels Mono") { 2762 channels = AUDIO_CHANNEL_OUT_MONO; 2763 } 2764 if (channels != 0) { 2765 if (target == "Manager") { 2766 mTestChannels = channels; 2767 } else if (mTestOutputs[mCurOutput] != 0) { 2768 AudioParameter outputParam = AudioParameter(); 2769 outputParam.addInt(String8("channels"), channels); 2770 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2771 } 2772 } 2773 } 2774 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 2775 param.remove(String8("test_cmd_policy_sampleRate")); 2776 if (valueInt >= 0 && valueInt <= 96000) { 2777 int samplingRate = valueInt; 2778 if (target == "Manager") { 2779 mTestSamplingRate = samplingRate; 2780 } else if (mTestOutputs[mCurOutput] != 0) { 2781 AudioParameter outputParam = AudioParameter(); 2782 outputParam.addInt(String8("sampling_rate"), samplingRate); 2783 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2784 } 2785 } 2786 } 2787 2788 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 2789 param.remove(String8("test_cmd_policy_reopen")); 2790 2791 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2792 mpClientInterface->closeOutput(mPrimaryOutput); 2793 2794 audio_module_handle_t moduleHandle = outputDesc->getModuleHandle(); 2795 2796 removeOutput(mPrimaryOutput); 2797 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 2798 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 2799 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2800 config.sample_rate = outputDesc->mSamplingRate; 2801 config.channel_mask = outputDesc->mChannelMask; 2802 config.format = outputDesc->mFormat; 2803 status_t status = mpClientInterface->openOutput(moduleHandle, 2804 &mPrimaryOutput, 2805 &config, 2806 &outputDesc->mDevice, 2807 String8(""), 2808 &outputDesc->mLatency, 2809 outputDesc->mFlags); 2810 if (status != NO_ERROR) { 2811 ALOGE("Failed to reopen hardware output stream, " 2812 "samplingRate: %d, format %d, channels %d", 2813 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 2814 } else { 2815 outputDesc->mSamplingRate = config.sample_rate; 2816 outputDesc->mChannelMask = config.channel_mask; 2817 outputDesc->mFormat = config.format; 2818 AudioParameter outputCmd = AudioParameter(); 2819 outputCmd.addInt(String8("set_id"), 0); 2820 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2821 addOutput(mPrimaryOutput, outputDesc); 2822 } 2823 } 2824 2825 2826 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 2827 } 2828 } 2829 return false; 2830} 2831 2832void AudioPolicyManager::exit() 2833{ 2834 { 2835 AutoMutex _l(mLock); 2836 requestExit(); 2837 mWaitWorkCV.signal(); 2838 } 2839 requestExitAndWait(); 2840} 2841 2842int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 2843{ 2844 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2845 if (output == mTestOutputs[i]) return i; 2846 } 2847 return 0; 2848} 2849#endif //AUDIO_POLICY_TEST 2850 2851// --- 2852 2853void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 2854{ 2855 outputDesc->setIoHandle(output); 2856 mOutputs.add(output, outputDesc); 2857 nextAudioPortGeneration(); 2858} 2859 2860void AudioPolicyManager::removeOutput(audio_io_handle_t output) 2861{ 2862 mOutputs.removeItem(output); 2863} 2864 2865void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 2866{ 2867 inputDesc->setIoHandle(input); 2868 mInputs.add(input, inputDesc); 2869 nextAudioPortGeneration(); 2870} 2871 2872void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 2873 const audio_devices_t device /*in*/, 2874 const String8 address /*in*/, 2875 SortedVector<audio_io_handle_t>& outputs /*out*/) { 2876 sp<DeviceDescriptor> devDesc = 2877 desc->mProfile->mSupportedDevices.getDevice(device, address); 2878 if (devDesc != 0) { 2879 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 2880 desc->mIoHandle, address.string()); 2881 outputs.add(desc->mIoHandle); 2882 } 2883} 2884 2885status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 2886 audio_policy_dev_state_t state, 2887 SortedVector<audio_io_handle_t>& outputs, 2888 const String8 address) 2889{ 2890 audio_devices_t device = devDesc->type(); 2891 sp<AudioOutputDescriptor> desc; 2892 // erase all current sample rates, formats and channel masks 2893 devDesc->clearCapabilities(); 2894 2895 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 2896 // first list already open outputs that can be routed to this device 2897 for (size_t i = 0; i < mOutputs.size(); i++) { 2898 desc = mOutputs.valueAt(i); 2899 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 2900 if (!device_distinguishes_on_address(device)) { 2901 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 2902 outputs.add(mOutputs.keyAt(i)); 2903 } else { 2904 ALOGV(" checking address match due to device 0x%x", device); 2905 findIoHandlesByAddress(desc, device, address, outputs); 2906 } 2907 } 2908 } 2909 // then look for output profiles that can be routed to this device 2910 SortedVector< sp<IOProfile> > profiles; 2911 for (size_t i = 0; i < mHwModules.size(); i++) 2912 { 2913 if (mHwModules[i]->mHandle == 0) { 2914 continue; 2915 } 2916 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2917 { 2918 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 2919 if (profile->mSupportedDevices.types() & device) { 2920 if (!device_distinguishes_on_address(device) || 2921 address == profile->mSupportedDevices[0]->mAddress) { 2922 profiles.add(profile); 2923 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 2924 } 2925 } 2926 } 2927 } 2928 2929 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 2930 2931 if (profiles.isEmpty() && outputs.isEmpty()) { 2932 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2933 return BAD_VALUE; 2934 } 2935 2936 // open outputs for matching profiles if needed. Direct outputs are also opened to 2937 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 2938 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 2939 sp<IOProfile> profile = profiles[profile_index]; 2940 2941 // nothing to do if one output is already opened for this profile 2942 size_t j; 2943 for (j = 0; j < outputs.size(); j++) { 2944 desc = mOutputs.valueFor(outputs.itemAt(j)); 2945 if (!desc->isDuplicated() && desc->mProfile == profile) { 2946 // matching profile: save the sample rates, format and channel masks supported 2947 // by the profile in our device descriptor 2948 devDesc->importAudioPort(profile); 2949 break; 2950 } 2951 } 2952 if (j != outputs.size()) { 2953 continue; 2954 } 2955 2956 ALOGV("opening output for device %08x with params %s profile %p", 2957 device, address.string(), profile.get()); 2958 desc = new AudioOutputDescriptor(profile); 2959 desc->mDevice = device; 2960 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2961 config.sample_rate = desc->mSamplingRate; 2962 config.channel_mask = desc->mChannelMask; 2963 config.format = desc->mFormat; 2964 config.offload_info.sample_rate = desc->mSamplingRate; 2965 config.offload_info.channel_mask = desc->mChannelMask; 2966 config.offload_info.format = desc->mFormat; 2967 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2968 status_t status = mpClientInterface->openOutput(profile->getModuleHandle(), 2969 &output, 2970 &config, 2971 &desc->mDevice, 2972 address, 2973 &desc->mLatency, 2974 desc->mFlags); 2975 if (status == NO_ERROR) { 2976 desc->mSamplingRate = config.sample_rate; 2977 desc->mChannelMask = config.channel_mask; 2978 desc->mFormat = config.format; 2979 2980 // Here is where the out_set_parameters() for card & device gets called 2981 if (!address.isEmpty()) { 2982 char *param = audio_device_address_to_parameter(device, address); 2983 mpClientInterface->setParameters(output, String8(param)); 2984 free(param); 2985 } 2986 2987 // Here is where we step through and resolve any "dynamic" fields 2988 String8 reply; 2989 char *value; 2990 if (profile->mSamplingRates[0] == 0) { 2991 reply = mpClientInterface->getParameters(output, 2992 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 2993 ALOGV("checkOutputsForDevice() supported sampling rates %s", 2994 reply.string()); 2995 value = strpbrk((char *)reply.string(), "="); 2996 if (value != NULL) { 2997 profile->loadSamplingRates(value + 1); 2998 } 2999 } 3000 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3001 reply = mpClientInterface->getParameters(output, 3002 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3003 ALOGV("checkOutputsForDevice() supported formats %s", 3004 reply.string()); 3005 value = strpbrk((char *)reply.string(), "="); 3006 if (value != NULL) { 3007 profile->loadFormats(value + 1); 3008 } 3009 } 3010 if (profile->mChannelMasks[0] == 0) { 3011 reply = mpClientInterface->getParameters(output, 3012 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3013 ALOGV("checkOutputsForDevice() supported channel masks %s", 3014 reply.string()); 3015 value = strpbrk((char *)reply.string(), "="); 3016 if (value != NULL) { 3017 profile->loadOutChannels(value + 1); 3018 } 3019 } 3020 if (((profile->mSamplingRates[0] == 0) && 3021 (profile->mSamplingRates.size() < 2)) || 3022 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3023 (profile->mFormats.size() < 2)) || 3024 ((profile->mChannelMasks[0] == 0) && 3025 (profile->mChannelMasks.size() < 2))) { 3026 ALOGW("checkOutputsForDevice() missing param"); 3027 mpClientInterface->closeOutput(output); 3028 output = AUDIO_IO_HANDLE_NONE; 3029 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3030 profile->mChannelMasks[0] == 0) { 3031 mpClientInterface->closeOutput(output); 3032 config.sample_rate = profile->pickSamplingRate(); 3033 config.channel_mask = profile->pickChannelMask(); 3034 config.format = profile->pickFormat(); 3035 config.offload_info.sample_rate = config.sample_rate; 3036 config.offload_info.channel_mask = config.channel_mask; 3037 config.offload_info.format = config.format; 3038 status = mpClientInterface->openOutput(profile->getModuleHandle(), 3039 &output, 3040 &config, 3041 &desc->mDevice, 3042 address, 3043 &desc->mLatency, 3044 desc->mFlags); 3045 if (status == NO_ERROR) { 3046 desc->mSamplingRate = config.sample_rate; 3047 desc->mChannelMask = config.channel_mask; 3048 desc->mFormat = config.format; 3049 } else { 3050 output = AUDIO_IO_HANDLE_NONE; 3051 } 3052 } 3053 3054 if (output != AUDIO_IO_HANDLE_NONE) { 3055 addOutput(output, desc); 3056 if (device_distinguishes_on_address(device) && address != "0") { 3057 sp<AudioPolicyMix> policyMix; 3058 if (mPolicyMixes.getAudioPolicyMix(address, policyMix) != NO_ERROR) { 3059 ALOGE("checkOutputsForDevice() cannot find policy for address %s", 3060 address.string()); 3061 } 3062 policyMix->setOutput(desc); 3063 desc->mPolicyMix = &(policyMix->getMix()); 3064 3065 } else if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3066 // no duplicated output for direct outputs and 3067 // outputs used by dynamic policy mixes 3068 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3069 3070 // set initial stream volume for device 3071 applyStreamVolumes(output, device, 0, true); 3072 3073 //TODO: configure audio effect output stage here 3074 3075 // open a duplicating output thread for the new output and the primary output 3076 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3077 mPrimaryOutput); 3078 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3079 // add duplicated output descriptor 3080 sp<AudioOutputDescriptor> dupOutputDesc = 3081 new AudioOutputDescriptor(NULL); 3082 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3083 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3084 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3085 dupOutputDesc->mFormat = desc->mFormat; 3086 dupOutputDesc->mChannelMask = desc->mChannelMask; 3087 dupOutputDesc->mLatency = desc->mLatency; 3088 addOutput(duplicatedOutput, dupOutputDesc); 3089 applyStreamVolumes(duplicatedOutput, device, 0, true); 3090 } else { 3091 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3092 mPrimaryOutput, output); 3093 mpClientInterface->closeOutput(output); 3094 removeOutput(output); 3095 nextAudioPortGeneration(); 3096 output = AUDIO_IO_HANDLE_NONE; 3097 } 3098 } 3099 } 3100 } else { 3101 output = AUDIO_IO_HANDLE_NONE; 3102 } 3103 if (output == AUDIO_IO_HANDLE_NONE) { 3104 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3105 profiles.removeAt(profile_index); 3106 profile_index--; 3107 } else { 3108 outputs.add(output); 3109 devDesc->importAudioPort(profile); 3110 3111 if (device_distinguishes_on_address(device)) { 3112 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3113 device, address.string()); 3114 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3115 NULL/*patch handle*/, address.string()); 3116 } 3117 ALOGV("checkOutputsForDevice(): adding output %d", output); 3118 } 3119 } 3120 3121 if (profiles.isEmpty()) { 3122 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3123 return BAD_VALUE; 3124 } 3125 } else { // Disconnect 3126 // check if one opened output is not needed any more after disconnecting one device 3127 for (size_t i = 0; i < mOutputs.size(); i++) { 3128 desc = mOutputs.valueAt(i); 3129 if (!desc->isDuplicated()) { 3130 // exact match on device 3131 if (device_distinguishes_on_address(device) && 3132 (desc->mProfile->mSupportedDevices.types() == device)) { 3133 findIoHandlesByAddress(desc, device, address, outputs); 3134 } else if (!(desc->mProfile->mSupportedDevices.types() 3135 & mAvailableOutputDevices.types())) { 3136 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3137 mOutputs.keyAt(i)); 3138 outputs.add(mOutputs.keyAt(i)); 3139 } 3140 } 3141 } 3142 // Clear any profiles associated with the disconnected device. 3143 for (size_t i = 0; i < mHwModules.size(); i++) 3144 { 3145 if (mHwModules[i]->mHandle == 0) { 3146 continue; 3147 } 3148 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3149 { 3150 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3151 if (profile->mSupportedDevices.types() & device) { 3152 ALOGV("checkOutputsForDevice(): " 3153 "clearing direct output profile %zu on module %zu", j, i); 3154 if (profile->mSamplingRates[0] == 0) { 3155 profile->mSamplingRates.clear(); 3156 profile->mSamplingRates.add(0); 3157 } 3158 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3159 profile->mFormats.clear(); 3160 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3161 } 3162 if (profile->mChannelMasks[0] == 0) { 3163 profile->mChannelMasks.clear(); 3164 profile->mChannelMasks.add(0); 3165 } 3166 } 3167 } 3168 } 3169 } 3170 return NO_ERROR; 3171} 3172 3173status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3174 audio_policy_dev_state_t state, 3175 SortedVector<audio_io_handle_t>& inputs, 3176 const String8 address) 3177{ 3178 sp<AudioInputDescriptor> desc; 3179 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3180 // first list already open inputs that can be routed to this device 3181 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3182 desc = mInputs.valueAt(input_index); 3183 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3184 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3185 inputs.add(mInputs.keyAt(input_index)); 3186 } 3187 } 3188 3189 // then look for input profiles that can be routed to this device 3190 SortedVector< sp<IOProfile> > profiles; 3191 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3192 { 3193 if (mHwModules[module_idx]->mHandle == 0) { 3194 continue; 3195 } 3196 for (size_t profile_index = 0; 3197 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3198 profile_index++) 3199 { 3200 sp<IOProfile> profile = mHwModules[module_idx]->mInputProfiles[profile_index]; 3201 3202 if (profile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3203 if (!device_distinguishes_on_address(device) || 3204 address == profile->mSupportedDevices[0]->mAddress) { 3205 profiles.add(profile); 3206 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3207 profile_index, module_idx); 3208 } 3209 } 3210 } 3211 } 3212 3213 if (profiles.isEmpty() && inputs.isEmpty()) { 3214 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3215 return BAD_VALUE; 3216 } 3217 3218 // open inputs for matching profiles if needed. Direct inputs are also opened to 3219 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3220 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3221 3222 sp<IOProfile> profile = profiles[profile_index]; 3223 // nothing to do if one input is already opened for this profile 3224 size_t input_index; 3225 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3226 desc = mInputs.valueAt(input_index); 3227 if (desc->mProfile == profile) { 3228 break; 3229 } 3230 } 3231 if (input_index != mInputs.size()) { 3232 continue; 3233 } 3234 3235 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3236 desc = new AudioInputDescriptor(profile); 3237 desc->mDevice = device; 3238 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3239 config.sample_rate = desc->mSamplingRate; 3240 config.channel_mask = desc->mChannelMask; 3241 config.format = desc->mFormat; 3242 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3243 status_t status = mpClientInterface->openInput(profile->getModuleHandle(), 3244 &input, 3245 &config, 3246 &desc->mDevice, 3247 address, 3248 AUDIO_SOURCE_MIC, 3249 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3250 3251 if (status == NO_ERROR) { 3252 desc->mSamplingRate = config.sample_rate; 3253 desc->mChannelMask = config.channel_mask; 3254 desc->mFormat = config.format; 3255 3256 if (!address.isEmpty()) { 3257 char *param = audio_device_address_to_parameter(device, address); 3258 mpClientInterface->setParameters(input, String8(param)); 3259 free(param); 3260 } 3261 3262 // Here is where we step through and resolve any "dynamic" fields 3263 String8 reply; 3264 char *value; 3265 if (profile->mSamplingRates[0] == 0) { 3266 reply = mpClientInterface->getParameters(input, 3267 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3268 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3269 reply.string()); 3270 value = strpbrk((char *)reply.string(), "="); 3271 if (value != NULL) { 3272 profile->loadSamplingRates(value + 1); 3273 } 3274 } 3275 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3276 reply = mpClientInterface->getParameters(input, 3277 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3278 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3279 value = strpbrk((char *)reply.string(), "="); 3280 if (value != NULL) { 3281 profile->loadFormats(value + 1); 3282 } 3283 } 3284 if (profile->mChannelMasks[0] == 0) { 3285 reply = mpClientInterface->getParameters(input, 3286 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3287 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3288 reply.string()); 3289 value = strpbrk((char *)reply.string(), "="); 3290 if (value != NULL) { 3291 profile->loadInChannels(value + 1); 3292 } 3293 } 3294 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3295 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3296 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3297 ALOGW("checkInputsForDevice() direct input missing param"); 3298 mpClientInterface->closeInput(input); 3299 input = AUDIO_IO_HANDLE_NONE; 3300 } 3301 3302 if (input != 0) { 3303 addInput(input, desc); 3304 } 3305 } // endif input != 0 3306 3307 if (input == AUDIO_IO_HANDLE_NONE) { 3308 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3309 profiles.removeAt(profile_index); 3310 profile_index--; 3311 } else { 3312 inputs.add(input); 3313 ALOGV("checkInputsForDevice(): adding input %d", input); 3314 } 3315 } // end scan profiles 3316 3317 if (profiles.isEmpty()) { 3318 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3319 return BAD_VALUE; 3320 } 3321 } else { 3322 // Disconnect 3323 // check if one opened input is not needed any more after disconnecting one device 3324 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3325 desc = mInputs.valueAt(input_index); 3326 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3327 ~AUDIO_DEVICE_BIT_IN)) { 3328 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3329 mInputs.keyAt(input_index)); 3330 inputs.add(mInputs.keyAt(input_index)); 3331 } 3332 } 3333 // Clear any profiles associated with the disconnected device. 3334 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3335 if (mHwModules[module_index]->mHandle == 0) { 3336 continue; 3337 } 3338 for (size_t profile_index = 0; 3339 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3340 profile_index++) { 3341 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3342 if (profile->mSupportedDevices.types() & device & ~AUDIO_DEVICE_BIT_IN) { 3343 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3344 profile_index, module_index); 3345 if (profile->mSamplingRates[0] == 0) { 3346 profile->mSamplingRates.clear(); 3347 profile->mSamplingRates.add(0); 3348 } 3349 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3350 profile->mFormats.clear(); 3351 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3352 } 3353 if (profile->mChannelMasks[0] == 0) { 3354 profile->mChannelMasks.clear(); 3355 profile->mChannelMasks.add(0); 3356 } 3357 } 3358 } 3359 } 3360 } // end disconnect 3361 3362 return NO_ERROR; 3363} 3364 3365 3366void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3367{ 3368 ALOGV("closeOutput(%d)", output); 3369 3370 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3371 if (outputDesc == NULL) { 3372 ALOGW("closeOutput() unknown output %d", output); 3373 return; 3374 } 3375 mPolicyMixes.closeOutput(outputDesc); 3376 3377 // look for duplicated outputs connected to the output being removed. 3378 for (size_t i = 0; i < mOutputs.size(); i++) { 3379 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3380 if (dupOutputDesc->isDuplicated() && 3381 (dupOutputDesc->mOutput1 == outputDesc || 3382 dupOutputDesc->mOutput2 == outputDesc)) { 3383 sp<AudioOutputDescriptor> outputDesc2; 3384 if (dupOutputDesc->mOutput1 == outputDesc) { 3385 outputDesc2 = dupOutputDesc->mOutput2; 3386 } else { 3387 outputDesc2 = dupOutputDesc->mOutput1; 3388 } 3389 // As all active tracks on duplicated output will be deleted, 3390 // and as they were also referenced on the other output, the reference 3391 // count for their stream type must be adjusted accordingly on 3392 // the other output. 3393 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3394 int refCount = dupOutputDesc->mRefCount[j]; 3395 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3396 } 3397 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3398 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3399 3400 mpClientInterface->closeOutput(duplicatedOutput); 3401 removeOutput(duplicatedOutput); 3402 } 3403 } 3404 3405 nextAudioPortGeneration(); 3406 3407 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3408 if (index >= 0) { 3409 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3410 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3411 mAudioPatches.removeItemsAt(index); 3412 mpClientInterface->onAudioPatchListUpdate(); 3413 } 3414 3415 AudioParameter param; 3416 param.add(String8("closing"), String8("true")); 3417 mpClientInterface->setParameters(output, param.toString()); 3418 3419 mpClientInterface->closeOutput(output); 3420 removeOutput(output); 3421 mPreviousOutputs = mOutputs; 3422} 3423 3424void AudioPolicyManager::closeInput(audio_io_handle_t input) 3425{ 3426 ALOGV("closeInput(%d)", input); 3427 3428 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3429 if (inputDesc == NULL) { 3430 ALOGW("closeInput() unknown input %d", input); 3431 return; 3432 } 3433 3434 nextAudioPortGeneration(); 3435 3436 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3437 if (index >= 0) { 3438 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3439 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3440 mAudioPatches.removeItemsAt(index); 3441 mpClientInterface->onAudioPatchListUpdate(); 3442 } 3443 3444 mpClientInterface->closeInput(input); 3445 mInputs.removeItem(input); 3446} 3447 3448SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 3449 AudioOutputCollection openOutputs) 3450{ 3451 SortedVector<audio_io_handle_t> outputs; 3452 3453 ALOGVV("getOutputsForDevice() device %04x", device); 3454 for (size_t i = 0; i < openOutputs.size(); i++) { 3455 ALOGVV("output %d isDuplicated=%d device=%04x", 3456 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 3457 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3458 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3459 outputs.add(openOutputs.keyAt(i)); 3460 } 3461 } 3462 return outputs; 3463} 3464 3465bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3466 SortedVector<audio_io_handle_t>& outputs2) 3467{ 3468 if (outputs1.size() != outputs2.size()) { 3469 return false; 3470 } 3471 for (size_t i = 0; i < outputs1.size(); i++) { 3472 if (outputs1[i] != outputs2[i]) { 3473 return false; 3474 } 3475 } 3476 return true; 3477} 3478 3479void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3480{ 3481 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3482 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3483 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3484 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3485 3486 // also take into account external policy-related changes: add all outputs which are 3487 // associated with policies in the "before" and "after" output vectors 3488 ALOGVV("checkOutputForStrategy(): policy related outputs"); 3489 for (size_t i = 0 ; i < mPreviousOutputs.size() ; i++) { 3490 const sp<AudioOutputDescriptor> desc = mPreviousOutputs.valueAt(i); 3491 if (desc != 0 && desc->mPolicyMix != NULL) { 3492 srcOutputs.add(desc->mIoHandle); 3493 ALOGVV(" previous outputs: adding %d", desc->mIoHandle); 3494 } 3495 } 3496 for (size_t i = 0 ; i < mOutputs.size() ; i++) { 3497 const sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 3498 if (desc != 0 && desc->mPolicyMix != NULL) { 3499 dstOutputs.add(desc->mIoHandle); 3500 ALOGVV(" new outputs: adding %d", desc->mIoHandle); 3501 } 3502 } 3503 3504 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3505 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3506 strategy, srcOutputs[0], dstOutputs[0]); 3507 // mute strategy while moving tracks from one output to another 3508 for (size_t i = 0; i < srcOutputs.size(); i++) { 3509 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3510 if (isStrategyActive(desc, strategy)) { 3511 setStrategyMute(strategy, true, srcOutputs[i]); 3512 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 3513 } 3514 } 3515 3516 // Move effects associated to this strategy from previous output to new output 3517 if (strategy == STRATEGY_MEDIA) { 3518 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3519 SortedVector<audio_io_handle_t> moved; 3520 for (size_t i = 0; i < mEffects.size(); i++) { 3521 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3522 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3523 effectDesc->mIo != fxOutput) { 3524 if (moved.indexOf(effectDesc->mIo) < 0) { 3525 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3526 mEffects.keyAt(i), fxOutput); 3527 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3528 fxOutput); 3529 moved.add(effectDesc->mIo); 3530 } 3531 effectDesc->mIo = fxOutput; 3532 } 3533 } 3534 } 3535 // Move tracks associated to this strategy from previous output to new output 3536 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3537 if (i == AUDIO_STREAM_PATCH) { 3538 continue; 3539 } 3540 if (getStrategy((audio_stream_type_t)i) == strategy) { 3541 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3542 } 3543 } 3544 } 3545} 3546 3547void AudioPolicyManager::checkOutputForAllStrategies() 3548{ 3549 if (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3550 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3551 checkOutputForStrategy(STRATEGY_PHONE); 3552 if (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3553 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3554 checkOutputForStrategy(STRATEGY_SONIFICATION); 3555 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3556 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 3557 checkOutputForStrategy(STRATEGY_MEDIA); 3558 checkOutputForStrategy(STRATEGY_DTMF); 3559 checkOutputForStrategy(STRATEGY_REROUTING); 3560} 3561 3562void AudioPolicyManager::checkA2dpSuspend() 3563{ 3564 audio_io_handle_t a2dpOutput = mOutputs.getA2dpOutput(); 3565 if (a2dpOutput == 0) { 3566 mA2dpSuspended = false; 3567 return; 3568 } 3569 3570 bool isScoConnected = 3571 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 3572 ~AUDIO_DEVICE_BIT_IN) != 0) || 3573 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 3574 // suspend A2DP output if: 3575 // (NOT already suspended) && 3576 // ((SCO device is connected && 3577 // (forced usage for communication || for record is SCO))) || 3578 // (phone state is ringing || in call) 3579 // 3580 // restore A2DP output if: 3581 // (Already suspended) && 3582 // ((SCO device is NOT connected || 3583 // (forced usage NOT for communication && NOT for record is SCO))) && 3584 // (phone state is NOT ringing && NOT in call) 3585 // 3586 if (mA2dpSuspended) { 3587 if ((!isScoConnected || 3588 ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) != AUDIO_POLICY_FORCE_BT_SCO) && 3589 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) != AUDIO_POLICY_FORCE_BT_SCO))) && 3590 ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) && 3591 (mEngine->getPhoneState() != AUDIO_MODE_RINGTONE))) { 3592 3593 mpClientInterface->restoreOutput(a2dpOutput); 3594 mA2dpSuspended = false; 3595 } 3596 } else { 3597 if ((isScoConnected && 3598 ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) == AUDIO_POLICY_FORCE_BT_SCO) || 3599 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) == AUDIO_POLICY_FORCE_BT_SCO))) || 3600 ((mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) || 3601 (mEngine->getPhoneState() == AUDIO_MODE_RINGTONE))) { 3602 3603 mpClientInterface->suspendOutput(a2dpOutput); 3604 mA2dpSuspended = true; 3605 } 3606 } 3607} 3608 3609audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3610{ 3611 audio_devices_t device = AUDIO_DEVICE_NONE; 3612 3613 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3614 3615 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3616 if (index >= 0) { 3617 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3618 if (patchDesc->mUid != mUidCached) { 3619 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3620 outputDesc->device(), outputDesc->mPatchHandle); 3621 return outputDesc->device(); 3622 } 3623 } 3624 3625 // check the following by order of priority to request a routing change if necessary: 3626 // 1: the strategy enforced audible is active and enforced on the output: 3627 // use device for strategy enforced audible 3628 // 2: we are in call or the strategy phone is active on the output: 3629 // use device for strategy phone 3630 // 3: the strategy for enforced audible is active but not enforced on the output: 3631 // use the device for strategy enforced audible 3632 // 4: the strategy sonification is active on the output: 3633 // use device for strategy sonification 3634 // 5: the strategy "respectful" sonification is active on the output: 3635 // use device for strategy "respectful" sonification 3636 // 6: the strategy accessibility is active on the output: 3637 // use device for strategy accessibility 3638 // 7: the strategy media is active on the output: 3639 // use device for strategy media 3640 // 8: the strategy DTMF is active on the output: 3641 // use device for strategy DTMF 3642 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 3643 // use device for strategy t-t-s 3644 if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE) && 3645 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 3646 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3647 } else if (isInCall() || 3648 isStrategyActive(outputDesc, STRATEGY_PHONE)) { 3649 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3650 } else if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE)) { 3651 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3652 } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION)) { 3653 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3654 } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION_RESPECTFUL)) { 3655 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3656 } else if (isStrategyActive(outputDesc, STRATEGY_ACCESSIBILITY)) { 3657 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 3658 } else if (isStrategyActive(outputDesc, STRATEGY_MEDIA)) { 3659 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3660 } else if (isStrategyActive(outputDesc, STRATEGY_DTMF)) { 3661 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3662 } else if (isStrategyActive(outputDesc, STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 3663 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 3664 } else if (isStrategyActive(outputDesc, STRATEGY_REROUTING)) { 3665 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 3666 } 3667 3668 ALOGV("getNewOutputDevice() selected device %x", device); 3669 return device; 3670} 3671 3672audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3673{ 3674 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3675 3676 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3677 if (index >= 0) { 3678 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3679 if (patchDesc->mUid != mUidCached) { 3680 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3681 inputDesc->mDevice, inputDesc->mPatchHandle); 3682 return inputDesc->mDevice; 3683 } 3684 } 3685 3686 audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->mInputSource); 3687 3688 ALOGV("getNewInputDevice() selected device %x", device); 3689 return device; 3690} 3691 3692uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3693 return (uint32_t)getStrategy(stream); 3694} 3695 3696audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3697 // By checking the range of stream before calling getStrategy, we avoid 3698 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3699 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3700 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 3701 return AUDIO_DEVICE_NONE; 3702 } 3703 audio_devices_t devices; 3704 routing_strategy strategy = getStrategy(stream); 3705 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3706 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3707 for (size_t i = 0; i < outputs.size(); i++) { 3708 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3709 if (isStrategyActive(outputDesc, strategy)) { 3710 devices = outputDesc->device(); 3711 break; 3712 } 3713 } 3714 3715 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 3716 and doesn't really need to.*/ 3717 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 3718 devices |= AUDIO_DEVICE_OUT_SPEAKER; 3719 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 3720 } 3721 3722 return devices; 3723} 3724 3725routing_strategy AudioPolicyManager::getStrategy(audio_stream_type_t stream) const 3726{ 3727 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 3728 return mEngine->getStrategyForStream(stream); 3729} 3730 3731uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 3732 // flags to strategy mapping 3733 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 3734 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 3735 } 3736 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 3737 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 3738 } 3739 // usage to strategy mapping 3740 return static_cast<uint32_t>(mEngine->getStrategyForUsage(attr->usage)); 3741} 3742 3743void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 3744 switch(stream) { 3745 case AUDIO_STREAM_MUSIC: 3746 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3747 updateDevicesAndOutputs(); 3748 break; 3749 default: 3750 break; 3751 } 3752} 3753 3754uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 3755 switch(event) { 3756 case STARTING_OUTPUT: 3757 mBeaconMuteRefCount++; 3758 break; 3759 case STOPPING_OUTPUT: 3760 if (mBeaconMuteRefCount > 0) { 3761 mBeaconMuteRefCount--; 3762 } 3763 break; 3764 case STARTING_BEACON: 3765 mBeaconPlayingRefCount++; 3766 break; 3767 case STOPPING_BEACON: 3768 if (mBeaconPlayingRefCount > 0) { 3769 mBeaconPlayingRefCount--; 3770 } 3771 break; 3772 } 3773 3774 if (mBeaconMuteRefCount > 0) { 3775 // any playback causes beacon to be muted 3776 return setBeaconMute(true); 3777 } else { 3778 // no other playback: unmute when beacon starts playing, mute when it stops 3779 return setBeaconMute(mBeaconPlayingRefCount == 0); 3780 } 3781} 3782 3783uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 3784 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 3785 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 3786 // keep track of muted state to avoid repeating mute/unmute operations 3787 if (mBeaconMuted != mute) { 3788 // mute/unmute AUDIO_STREAM_TTS on all outputs 3789 ALOGV("\t muting %d", mute); 3790 uint32_t maxLatency = 0; 3791 for (size_t i = 0; i < mOutputs.size(); i++) { 3792 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 3793 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 3794 desc->mIoHandle, 3795 0 /*delay*/, AUDIO_DEVICE_NONE); 3796 const uint32_t latency = desc->latency() * 2; 3797 if (latency > maxLatency) { 3798 maxLatency = latency; 3799 } 3800 } 3801 mBeaconMuted = mute; 3802 return maxLatency; 3803 } 3804 return 0; 3805} 3806 3807audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 3808 bool fromCache) 3809{ 3810 // Routing 3811 // see if we have an explicit route 3812 // scan the whole RouteMap, for each entry, convert the stream type to a strategy 3813 // (getStrategy(stream)). 3814 // if the strategy from the stream type in the RouteMap is the same as the argument above, 3815 // and activity count is non-zero 3816 // the device = the device from the descriptor in the RouteMap, and exit. 3817 for (size_t routeIndex = 0; routeIndex < mOutputRoutes.size(); routeIndex++) { 3818 sp<SessionRoute> route = mOutputRoutes.valueAt(routeIndex); 3819 routing_strategy strat = getStrategy(route->mStreamType); 3820 if (strat == strategy && route->mDeviceDescriptor != 0 /*&& route->mActivityCount != 0*/) { 3821 return route->mDeviceDescriptor->type(); 3822 } 3823 } 3824 3825 if (fromCache) { 3826 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 3827 strategy, mDeviceForStrategy[strategy]); 3828 return mDeviceForStrategy[strategy]; 3829 } 3830 return mEngine->getDeviceForStrategy(strategy); 3831} 3832 3833void AudioPolicyManager::updateDevicesAndOutputs() 3834{ 3835 for (int i = 0; i < NUM_STRATEGIES; i++) { 3836 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3837 } 3838 mPreviousOutputs = mOutputs; 3839} 3840 3841uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 3842 audio_devices_t prevDevice, 3843 uint32_t delayMs) 3844{ 3845 // mute/unmute strategies using an incompatible device combination 3846 // if muting, wait for the audio in pcm buffer to be drained before proceeding 3847 // if unmuting, unmute only after the specified delay 3848 if (outputDesc->isDuplicated()) { 3849 return 0; 3850 } 3851 3852 uint32_t muteWaitMs = 0; 3853 audio_devices_t device = outputDesc->device(); 3854 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 3855 3856 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3857 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3858 curDevice = curDevice & outputDesc->mProfile->mSupportedDevices.types(); 3859 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 3860 bool doMute = false; 3861 3862 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 3863 doMute = true; 3864 outputDesc->mStrategyMutedByDevice[i] = true; 3865 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 3866 doMute = true; 3867 outputDesc->mStrategyMutedByDevice[i] = false; 3868 } 3869 if (doMute) { 3870 for (size_t j = 0; j < mOutputs.size(); j++) { 3871 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 3872 // skip output if it does not share any device with current output 3873 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 3874 == AUDIO_DEVICE_NONE) { 3875 continue; 3876 } 3877 audio_io_handle_t curOutput = mOutputs.keyAt(j); 3878 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 3879 mute ? "muting" : "unmuting", i, curDevice, curOutput); 3880 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 3881 if (isStrategyActive(desc, (routing_strategy)i)) { 3882 if (mute) { 3883 // FIXME: should not need to double latency if volume could be applied 3884 // immediately by the audioflinger mixer. We must account for the delay 3885 // between now and the next time the audioflinger thread for this output 3886 // will process a buffer (which corresponds to one buffer size, 3887 // usually 1/2 or 1/4 of the latency). 3888 if (muteWaitMs < desc->latency() * 2) { 3889 muteWaitMs = desc->latency() * 2; 3890 } 3891 } 3892 } 3893 } 3894 } 3895 } 3896 3897 // temporary mute output if device selection changes to avoid volume bursts due to 3898 // different per device volumes 3899 if (outputDesc->isActive() && (device != prevDevice)) { 3900 if (muteWaitMs < outputDesc->latency() * 2) { 3901 muteWaitMs = outputDesc->latency() * 2; 3902 } 3903 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3904 if (isStrategyActive(outputDesc, (routing_strategy)i)) { 3905 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 3906 // do tempMute unmute after twice the mute wait time 3907 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 3908 muteWaitMs *2, device); 3909 } 3910 } 3911 } 3912 3913 // wait for the PCM output buffers to empty before proceeding with the rest of the command 3914 if (muteWaitMs > delayMs) { 3915 muteWaitMs -= delayMs; 3916 usleep(muteWaitMs * 1000); 3917 return muteWaitMs; 3918 } 3919 return 0; 3920} 3921 3922uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 3923 audio_devices_t device, 3924 bool force, 3925 int delayMs, 3926 audio_patch_handle_t *patchHandle, 3927 const char* address) 3928{ 3929 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 3930 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3931 AudioParameter param; 3932 uint32_t muteWaitMs; 3933 3934 if (outputDesc->isDuplicated()) { 3935 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 3936 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 3937 return muteWaitMs; 3938 } 3939 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 3940 // output profile 3941 if (device != AUDIO_DEVICE_NONE && 3942 (device & outputDesc->mProfile->mSupportedDevices.types()) == 0) { 3943 return 0; 3944 } 3945 3946 // filter devices according to output selected 3947 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 3948 3949 audio_devices_t prevDevice = outputDesc->mDevice; 3950 3951 ALOGV("setOutputDevice() prevDevice 0x%04x", prevDevice); 3952 3953 if (device != AUDIO_DEVICE_NONE) { 3954 outputDesc->mDevice = device; 3955 } 3956 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 3957 3958 // Do not change the routing if: 3959 // the requested device is AUDIO_DEVICE_NONE 3960 // OR the requested device is the same as current device 3961 // AND force is not specified 3962 // AND the output is connected by a valid audio patch. 3963 // Doing this check here allows the caller to call setOutputDevice() without conditions 3964 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && 3965 !force && 3966 outputDesc->mPatchHandle != 0) { 3967 ALOGV("setOutputDevice() setting same device 0x%04x or null device for output %d", 3968 device, output); 3969 return muteWaitMs; 3970 } 3971 3972 ALOGV("setOutputDevice() changing device"); 3973 3974 // do the routing 3975 if (device == AUDIO_DEVICE_NONE) { 3976 resetOutputDevice(output, delayMs, NULL); 3977 } else { 3978 DeviceVector deviceList = (address == NULL) ? 3979 mAvailableOutputDevices.getDevicesFromType(device) 3980 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 3981 if (!deviceList.isEmpty()) { 3982 struct audio_patch patch; 3983 outputDesc->toAudioPortConfig(&patch.sources[0]); 3984 patch.num_sources = 1; 3985 patch.num_sinks = 0; 3986 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 3987 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 3988 patch.num_sinks++; 3989 } 3990 ssize_t index; 3991 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 3992 index = mAudioPatches.indexOfKey(*patchHandle); 3993 } else { 3994 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3995 } 3996 sp< AudioPatch> patchDesc; 3997 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 3998 if (index >= 0) { 3999 patchDesc = mAudioPatches.valueAt(index); 4000 afPatchHandle = patchDesc->mAfPatchHandle; 4001 } 4002 4003 status_t status = mpClientInterface->createAudioPatch(&patch, 4004 &afPatchHandle, 4005 delayMs); 4006 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4007 "num_sources %d num_sinks %d", 4008 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4009 if (status == NO_ERROR) { 4010 if (index < 0) { 4011 patchDesc = new AudioPatch(&patch, mUidCached); 4012 addAudioPatch(patchDesc->mHandle, patchDesc); 4013 } else { 4014 patchDesc->mPatch = patch; 4015 } 4016 patchDesc->mAfPatchHandle = afPatchHandle; 4017 patchDesc->mUid = mUidCached; 4018 if (patchHandle) { 4019 *patchHandle = patchDesc->mHandle; 4020 } 4021 outputDesc->mPatchHandle = patchDesc->mHandle; 4022 nextAudioPortGeneration(); 4023 mpClientInterface->onAudioPatchListUpdate(); 4024 } 4025 } 4026 4027 // inform all input as well 4028 for (size_t i = 0; i < mInputs.size(); i++) { 4029 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4030 if (!is_virtual_input_device(inputDescriptor->mDevice)) { 4031 AudioParameter inputCmd = AudioParameter(); 4032 ALOGV("%s: inform input %d of device:%d", __func__, 4033 inputDescriptor->mIoHandle, device); 4034 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4035 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4036 inputCmd.toString(), 4037 delayMs); 4038 } 4039 } 4040 } 4041 4042 // update stream volumes according to new device 4043 applyStreamVolumes(output, device, delayMs); 4044 4045 return muteWaitMs; 4046} 4047 4048status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 4049 int delayMs, 4050 audio_patch_handle_t *patchHandle) 4051{ 4052 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4053 ssize_t index; 4054 if (patchHandle) { 4055 index = mAudioPatches.indexOfKey(*patchHandle); 4056 } else { 4057 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4058 } 4059 if (index < 0) { 4060 return INVALID_OPERATION; 4061 } 4062 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4063 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4064 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4065 outputDesc->mPatchHandle = 0; 4066 removeAudioPatch(patchDesc->mHandle); 4067 nextAudioPortGeneration(); 4068 mpClientInterface->onAudioPatchListUpdate(); 4069 return status; 4070} 4071 4072status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4073 audio_devices_t device, 4074 bool force, 4075 audio_patch_handle_t *patchHandle) 4076{ 4077 status_t status = NO_ERROR; 4078 4079 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4080 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4081 inputDesc->mDevice = device; 4082 4083 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4084 if (!deviceList.isEmpty()) { 4085 struct audio_patch patch; 4086 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4087 // AUDIO_SOURCE_HOTWORD is for internal use only: 4088 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4089 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4090 !inputDesc->mIsSoundTrigger) { 4091 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4092 } 4093 patch.num_sinks = 1; 4094 //only one input device for now 4095 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4096 patch.num_sources = 1; 4097 ssize_t index; 4098 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4099 index = mAudioPatches.indexOfKey(*patchHandle); 4100 } else { 4101 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4102 } 4103 sp< AudioPatch> patchDesc; 4104 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4105 if (index >= 0) { 4106 patchDesc = mAudioPatches.valueAt(index); 4107 afPatchHandle = patchDesc->mAfPatchHandle; 4108 } 4109 4110 status_t status = mpClientInterface->createAudioPatch(&patch, 4111 &afPatchHandle, 4112 0); 4113 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4114 status, afPatchHandle); 4115 if (status == NO_ERROR) { 4116 if (index < 0) { 4117 patchDesc = new AudioPatch(&patch, mUidCached); 4118 addAudioPatch(patchDesc->mHandle, patchDesc); 4119 } else { 4120 patchDesc->mPatch = patch; 4121 } 4122 patchDesc->mAfPatchHandle = afPatchHandle; 4123 patchDesc->mUid = mUidCached; 4124 if (patchHandle) { 4125 *patchHandle = patchDesc->mHandle; 4126 } 4127 inputDesc->mPatchHandle = patchDesc->mHandle; 4128 nextAudioPortGeneration(); 4129 mpClientInterface->onAudioPatchListUpdate(); 4130 } 4131 } 4132 } 4133 return status; 4134} 4135 4136status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4137 audio_patch_handle_t *patchHandle) 4138{ 4139 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4140 ssize_t index; 4141 if (patchHandle) { 4142 index = mAudioPatches.indexOfKey(*patchHandle); 4143 } else { 4144 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4145 } 4146 if (index < 0) { 4147 return INVALID_OPERATION; 4148 } 4149 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4150 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4151 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4152 inputDesc->mPatchHandle = 0; 4153 removeAudioPatch(patchDesc->mHandle); 4154 nextAudioPortGeneration(); 4155 mpClientInterface->onAudioPatchListUpdate(); 4156 return status; 4157} 4158 4159sp<IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4160 String8 address, 4161 uint32_t& samplingRate, 4162 audio_format_t format, 4163 audio_channel_mask_t channelMask, 4164 audio_input_flags_t flags) 4165{ 4166 // Choose an input profile based on the requested capture parameters: select the first available 4167 // profile supporting all requested parameters. 4168 4169 for (size_t i = 0; i < mHwModules.size(); i++) 4170 { 4171 if (mHwModules[i]->mHandle == 0) { 4172 continue; 4173 } 4174 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4175 { 4176 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4177 // profile->log(); 4178 if (profile->isCompatibleProfile(device, address, samplingRate, 4179 &samplingRate /*updatedSamplingRate*/, 4180 format, channelMask, (audio_output_flags_t) flags)) { 4181 4182 return profile; 4183 } 4184 } 4185 } 4186 return NULL; 4187} 4188 4189 4190audio_devices_t AudioPolicyManager::getDeviceAndMixForInputSource(audio_source_t inputSource, 4191 AudioMix **policyMix) 4192{ 4193 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 4194 audio_devices_t selectedDeviceFromMix = 4195 mPolicyMixes.getDeviceAndMixForInputSource(inputSource, availableDeviceTypes, policyMix); 4196 4197 if (selectedDeviceFromMix != AUDIO_DEVICE_NONE) { 4198 return selectedDeviceFromMix; 4199 } 4200 return getDeviceForInputSource(inputSource); 4201} 4202 4203audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4204{ 4205 return mEngine->getDeviceForInputSource(inputSource); 4206} 4207 4208float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4209 int index, 4210 audio_io_handle_t output, 4211 audio_devices_t device) 4212{ 4213 float volume = 1.0; 4214 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4215 4216 if (device == AUDIO_DEVICE_NONE) { 4217 device = outputDesc->device(); 4218 } 4219 volume = mEngine->volIndexToAmpl(Volume::getDeviceCategory(device), stream, index); 4220 4221 // if a headset is connected, apply the following rules to ring tones and notifications 4222 // to avoid sound level bursts in user's ears: 4223 // - always attenuate ring tones and notifications volume by 6dB 4224 // - if music is playing, always limit the volume to current music volume, 4225 // with a minimum threshold at -36dB so that notification is always perceived. 4226 const routing_strategy stream_strategy = getStrategy(stream); 4227 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4228 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4229 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4230 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4231 ((stream_strategy == STRATEGY_SONIFICATION) 4232 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4233 || (stream == AUDIO_STREAM_SYSTEM) 4234 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4235 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_NONE))) && 4236 mStreams.canBeMuted(stream)) { 4237 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 4238 // when the phone is ringing we must consider that music could have been paused just before 4239 // by the music application and behave as if music was active if the last music track was 4240 // just stopped 4241 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4242 mLimitRingtoneVolume) { 4243 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4244 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 4245 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 4246 output, 4247 musicDevice); 4248 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 4249 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 4250 if (volume > minVol) { 4251 volume = minVol; 4252 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 4253 } 4254 } 4255 } 4256 4257 return volume; 4258} 4259 4260status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4261 int index, 4262 audio_io_handle_t output, 4263 audio_devices_t device, 4264 int delayMs, 4265 bool force) 4266{ 4267 4268 // do not change actual stream volume if the stream is muted 4269 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 4270 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4271 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 4272 return NO_ERROR; 4273 } 4274 audio_policy_forced_cfg_t forceUseForComm = 4275 mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION); 4276 // do not change in call volume if bluetooth is connected and vice versa 4277 if ((stream == AUDIO_STREAM_VOICE_CALL && forceUseForComm == AUDIO_POLICY_FORCE_BT_SCO) || 4278 (stream == AUDIO_STREAM_BLUETOOTH_SCO && forceUseForComm != AUDIO_POLICY_FORCE_BT_SCO)) { 4279 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4280 stream, forceUseForComm); 4281 return INVALID_OPERATION; 4282 } 4283 4284 float volume = computeVolume(stream, index, output, device); 4285 // unit gain if rerouting to external policy 4286 if (device == AUDIO_DEVICE_OUT_REMOTE_SUBMIX) { 4287 ssize_t index = mOutputs.indexOfKey(output); 4288 if (index >= 0) { 4289 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 4290 if (outputDesc->mPolicyMix != NULL) { 4291 ALOGV("max gain when rerouting for output=%d", output); 4292 volume = 1.0f; 4293 } 4294 } 4295 4296 } 4297 // We actually change the volume if: 4298 // - the float value returned by computeVolume() changed 4299 // - the force flag is set 4300 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 4301 force) { 4302 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 4303 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 4304 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 4305 // enabled 4306 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4307 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 4308 } 4309 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 4310 } 4311 4312 if (stream == AUDIO_STREAM_VOICE_CALL || 4313 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4314 float voiceVolume; 4315 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4316 if (stream == AUDIO_STREAM_VOICE_CALL) { 4317 voiceVolume = (float)index/(float)mStreams[stream].getVolumeIndexMax(); 4318 } else { 4319 voiceVolume = 1.0; 4320 } 4321 4322 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 4323 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4324 mLastVoiceVolume = voiceVolume; 4325 } 4326 } 4327 4328 return NO_ERROR; 4329} 4330 4331void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 4332 audio_devices_t device, 4333 int delayMs, 4334 bool force) 4335{ 4336 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 4337 4338 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4339 if (stream == AUDIO_STREAM_PATCH) { 4340 continue; 4341 } 4342 checkAndSetVolume((audio_stream_type_t)stream, 4343 mStreams[stream].getVolumeIndex(device), 4344 output, 4345 device, 4346 delayMs, 4347 force); 4348 } 4349} 4350 4351void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 4352 bool on, 4353 audio_io_handle_t output, 4354 int delayMs, 4355 audio_devices_t device) 4356{ 4357 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 4358 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4359 if (stream == AUDIO_STREAM_PATCH) { 4360 continue; 4361 } 4362 if (getStrategy((audio_stream_type_t)stream) == strategy) { 4363 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 4364 } 4365 } 4366} 4367 4368void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 4369 bool on, 4370 audio_io_handle_t output, 4371 int delayMs, 4372 audio_devices_t device) 4373{ 4374 const StreamDescriptor &streamDesc = mStreams[stream]; 4375 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4376 if (device == AUDIO_DEVICE_NONE) { 4377 device = outputDesc->device(); 4378 } 4379 4380 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 4381 stream, on, output, outputDesc->mMuteCount[stream], device); 4382 4383 if (on) { 4384 if (outputDesc->mMuteCount[stream] == 0) { 4385 if (streamDesc.canBeMuted() && 4386 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 4387 (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_NONE))) { 4388 checkAndSetVolume(stream, 0, output, device, delayMs); 4389 } 4390 } 4391 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 4392 outputDesc->mMuteCount[stream]++; 4393 } else { 4394 if (outputDesc->mMuteCount[stream] == 0) { 4395 ALOGV("setStreamMute() unmuting non muted stream!"); 4396 return; 4397 } 4398 if (--outputDesc->mMuteCount[stream] == 0) { 4399 checkAndSetVolume(stream, 4400 streamDesc.getVolumeIndex(device), 4401 output, 4402 device, 4403 delayMs); 4404 } 4405 } 4406} 4407 4408void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 4409 bool starting, bool stateChange) 4410{ 4411 // if the stream pertains to sonification strategy and we are in call we must 4412 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 4413 // in the device used for phone strategy and play the tone if the selected device does not 4414 // interfere with the device used for phone strategy 4415 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 4416 // many times as there are active tracks on the output 4417 const routing_strategy stream_strategy = getStrategy(stream); 4418 if ((stream_strategy == STRATEGY_SONIFICATION) || 4419 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 4420 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 4421 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 4422 stream, starting, outputDesc->mDevice, stateChange); 4423 if (outputDesc->mRefCount[stream]) { 4424 int muteCount = 1; 4425 if (stateChange) { 4426 muteCount = outputDesc->mRefCount[stream]; 4427 } 4428 if (audio_is_low_visibility(stream)) { 4429 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 4430 for (int i = 0; i < muteCount; i++) { 4431 setStreamMute(stream, starting, mPrimaryOutput); 4432 } 4433 } else { 4434 ALOGV("handleIncallSonification() high visibility"); 4435 if (outputDesc->device() & 4436 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 4437 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 4438 for (int i = 0; i < muteCount; i++) { 4439 setStreamMute(stream, starting, mPrimaryOutput); 4440 } 4441 } 4442 if (starting) { 4443 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 4444 AUDIO_STREAM_VOICE_CALL); 4445 } else { 4446 mpClientInterface->stopTone(); 4447 } 4448 } 4449 } 4450 } 4451} 4452 4453// --- SessionRoute class implementation 4454void AudioPolicyManager::SessionRoute::log(const char* prefix) { 4455 ALOGI("%s[SessionRoute strm:0x%X, sess:0x%X, dev:0x%X refs:%d act:%d", 4456 prefix, mStreamType, mSession, 4457 mDeviceDescriptor != 0 ? mDeviceDescriptor->type() : AUDIO_DEVICE_NONE, 4458 mRefCount, mActivityCount); 4459} 4460 4461// --- SessionRouteMap class implementation 4462bool AudioPolicyManager::SessionRouteMap::hasRoute(audio_session_t session) 4463{ 4464 return indexOfKey(session) >= 0 && valueFor(session)->mDeviceDescriptor != 0; 4465} 4466 4467void AudioPolicyManager::SessionRouteMap::addRoute(audio_session_t session, 4468 audio_stream_type_t streamType, 4469 sp<DeviceDescriptor> deviceDescriptor) 4470{ 4471 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4472 if (route != NULL) { 4473 route->mRefCount++; 4474 route->mDeviceDescriptor = deviceDescriptor; 4475 } else { 4476 route = new AudioPolicyManager::SessionRoute(session, streamType, deviceDescriptor); 4477 route->mRefCount++; 4478 add(session, route); 4479 } 4480} 4481 4482void AudioPolicyManager::SessionRouteMap::removeRoute(audio_session_t session) 4483{ 4484 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4485 if (route != 0) { 4486 ALOG_ASSERT(route->mRefCount > 0); 4487 --route->mRefCount; 4488 if (route->mRefCount <= 0) { 4489 removeItem(session); 4490 } 4491 } 4492} 4493 4494int AudioPolicyManager::SessionRouteMap::incRouteActivity(audio_session_t session) 4495{ 4496 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4497 return route != 0 ? ++(route->mActivityCount) : -1; 4498} 4499 4500int AudioPolicyManager::SessionRouteMap::decRouteActivity(audio_session_t session) 4501{ 4502 sp<SessionRoute> route = indexOfKey(session) >= 0 ? valueFor(session) : 0; 4503 if (route != 0 && route->mActivityCount > 0) { 4504 return --(route->mActivityCount); 4505 } else { 4506 return -1; 4507 } 4508} 4509 4510void AudioPolicyManager::SessionRouteMap::log(const char* caption) { 4511 ALOGI("%s ----", caption); 4512 for(size_t index = 0; index < size(); index++) { 4513 valueAt(index)->log(" "); 4514 } 4515} 4516 4517void AudioPolicyManager::defaultAudioPolicyConfig(void) 4518{ 4519 sp<HwModule> module; 4520 sp<IOProfile> profile; 4521 sp<DeviceDescriptor> defaultInputDevice = 4522 new DeviceDescriptor(String8("builtin-mic"), AUDIO_DEVICE_IN_BUILTIN_MIC); 4523 mAvailableOutputDevices.add(mDefaultOutputDevice); 4524 mAvailableInputDevices.add(defaultInputDevice); 4525 4526 module = new HwModule("primary"); 4527 4528 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE); 4529 profile->attach(module); 4530 profile->mSamplingRates.add(44100); 4531 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 4532 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 4533 profile->mSupportedDevices.add(mDefaultOutputDevice); 4534 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 4535 module->mOutputProfiles.add(profile); 4536 4537 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK); 4538 profile->attach(module); 4539 profile->mSamplingRates.add(8000); 4540 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 4541 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 4542 profile->mSupportedDevices.add(defaultInputDevice); 4543 module->mInputProfiles.add(profile); 4544 4545 mHwModules.add(module); 4546} 4547 4548audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 4549{ 4550 // flags to stream type mapping 4551 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4552 return AUDIO_STREAM_ENFORCED_AUDIBLE; 4553 } 4554 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 4555 return AUDIO_STREAM_BLUETOOTH_SCO; 4556 } 4557 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4558 return AUDIO_STREAM_TTS; 4559 } 4560 4561 // usage to stream type mapping 4562 switch (attr->usage) { 4563 case AUDIO_USAGE_MEDIA: 4564 case AUDIO_USAGE_GAME: 4565 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4566 return AUDIO_STREAM_MUSIC; 4567 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4568 if (isStreamActive(AUDIO_STREAM_ALARM)) { 4569 return AUDIO_STREAM_ALARM; 4570 } 4571 if (isStreamActive(AUDIO_STREAM_RING)) { 4572 return AUDIO_STREAM_RING; 4573 } 4574 if (isInCall()) { 4575 return AUDIO_STREAM_VOICE_CALL; 4576 } 4577 return AUDIO_STREAM_ACCESSIBILITY; 4578 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4579 return AUDIO_STREAM_SYSTEM; 4580 case AUDIO_USAGE_VOICE_COMMUNICATION: 4581 return AUDIO_STREAM_VOICE_CALL; 4582 4583 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4584 return AUDIO_STREAM_DTMF; 4585 4586 case AUDIO_USAGE_ALARM: 4587 return AUDIO_STREAM_ALARM; 4588 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4589 return AUDIO_STREAM_RING; 4590 4591 case AUDIO_USAGE_NOTIFICATION: 4592 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4593 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4594 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4595 case AUDIO_USAGE_NOTIFICATION_EVENT: 4596 return AUDIO_STREAM_NOTIFICATION; 4597 4598 case AUDIO_USAGE_UNKNOWN: 4599 default: 4600 return AUDIO_STREAM_MUSIC; 4601 } 4602} 4603 4604bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) 4605{ 4606 // has flags that map to a strategy? 4607 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 4608 return true; 4609 } 4610 4611 // has known usage? 4612 switch (paa->usage) { 4613 case AUDIO_USAGE_UNKNOWN: 4614 case AUDIO_USAGE_MEDIA: 4615 case AUDIO_USAGE_VOICE_COMMUNICATION: 4616 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4617 case AUDIO_USAGE_ALARM: 4618 case AUDIO_USAGE_NOTIFICATION: 4619 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4620 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4621 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4622 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4623 case AUDIO_USAGE_NOTIFICATION_EVENT: 4624 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4625 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4626 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4627 case AUDIO_USAGE_GAME: 4628 case AUDIO_USAGE_VIRTUAL_SOURCE: 4629 break; 4630 default: 4631 return false; 4632 } 4633 return true; 4634} 4635 4636bool AudioPolicyManager::isStrategyActive(const sp<AudioOutputDescriptor> outputDesc, 4637 routing_strategy strategy, uint32_t inPastMs, 4638 nsecs_t sysTime) const 4639{ 4640 if ((sysTime == 0) && (inPastMs != 0)) { 4641 sysTime = systemTime(); 4642 } 4643 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4644 if (i == AUDIO_STREAM_PATCH) { 4645 continue; 4646 } 4647 if (((getStrategy((audio_stream_type_t)i) == strategy) || 4648 (NUM_STRATEGIES == strategy)) && 4649 outputDesc->isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 4650 return true; 4651 } 4652 } 4653 return false; 4654} 4655 4656audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 4657{ 4658 return mEngine->getForceUse(usage); 4659} 4660 4661bool AudioPolicyManager::isInCall() 4662{ 4663 return isStateInCall(mEngine->getPhoneState()); 4664} 4665 4666bool AudioPolicyManager::isStateInCall(int state) 4667{ 4668 return is_state_in_call(state); 4669} 4670 4671}; // namespace android 4672