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 "AudioPolicyService" 18 //#define LOG_NDEBUG 0 19 20 #undef __STRICT_ANSI__ 21 #define __STDINT_LIMITS 22 #define __STDC_LIMIT_MACROS 23 #include <stdint.h> 24 25 #include <sys/time.h> 26 #include <binder/IServiceManager.h> 27 #include <utils/Log.h> 28 #include <cutils/properties.h> 29 #include <binder/IPCThreadState.h> 30 #include <utils/String16.h> 31 #include <utils/threads.h> 32 #include "AudioPolicyService.h" 33 #include "ServiceUtilities.h" 34 #include <hardware_legacy/power.h> 35 #include <media/AudioEffect.h> 36 #include <media/EffectsFactoryApi.h> 37 38 #include <hardware/hardware.h> 39 #include <system/audio.h> 40 #include <system/audio_policy.h> 41 #include <hardware/audio_policy.h> 42 #include <audio_effects/audio_effects_conf.h> 43 44 namespace android { 45 46 static const char kDeadlockedString[] = "AudioPolicyService may be deadlocked\n"; 47 static const char kCmdDeadlockedString[] = "AudioPolicyService command thread may be deadlocked\n"; 48 49 static const int kDumpLockRetries = 50; 50 static const int kDumpLockSleepUs = 20000; 51 52 namespace { 53 extern struct audio_policy_service_ops aps_ops; 54 }; 55 56 // ---------------------------------------------------------------------------- 57 58 AudioPolicyService::AudioPolicyService() 59 : BnAudioPolicyService() , mpAudioPolicyDev(NULL) , mpAudioPolicy(NULL) 60 { 61 char value[PROPERTY_VALUE_MAX]; 62 const struct hw_module_t *module; 63 int forced_val; 64 int rc; 65 66 Mutex::Autolock _l(mLock); 67 68 // start tone playback thread 69 mTonePlaybackThread = new AudioCommandThread(String8("")); 70 // start audio commands thread 71 mAudioCommandThread = new AudioCommandThread(String8("ApmCommand")); 72 73 /* instantiate the audio policy manager */ 74 rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module); 75 if (rc) 76 return; 77 78 rc = audio_policy_dev_open(module, &mpAudioPolicyDev); 79 ALOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc)); 80 if (rc) 81 return; 82 83 rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this, 84 &mpAudioPolicy); 85 ALOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc)); 86 if (rc) 87 return; 88 89 rc = mpAudioPolicy->init_check(mpAudioPolicy); 90 ALOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc)); 91 if (rc) 92 return; 93 94 ALOGI("Loaded audio policy from %s (%s)", module->name, module->id); 95 96 // load audio pre processing modules 97 if (access(AUDIO_EFFECT_VENDOR_CONFIG_FILE, R_OK) == 0) { 98 loadPreProcessorConfig(AUDIO_EFFECT_VENDOR_CONFIG_FILE); 99 } else if (access(AUDIO_EFFECT_DEFAULT_CONFIG_FILE, R_OK) == 0) { 100 loadPreProcessorConfig(AUDIO_EFFECT_DEFAULT_CONFIG_FILE); 101 } 102 } 103 104 AudioPolicyService::~AudioPolicyService() 105 { 106 mTonePlaybackThread->exit(); 107 mTonePlaybackThread.clear(); 108 mAudioCommandThread->exit(); 109 mAudioCommandThread.clear(); 110 111 112 // release audio pre processing resources 113 for (size_t i = 0; i < mInputSources.size(); i++) { 114 delete mInputSources.valueAt(i); 115 } 116 mInputSources.clear(); 117 118 for (size_t i = 0; i < mInputs.size(); i++) { 119 mInputs.valueAt(i)->mEffects.clear(); 120 delete mInputs.valueAt(i); 121 } 122 mInputs.clear(); 123 124 if (mpAudioPolicy != NULL && mpAudioPolicyDev != NULL) 125 mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy); 126 if (mpAudioPolicyDev != NULL) 127 audio_policy_dev_close(mpAudioPolicyDev); 128 } 129 130 status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device, 131 audio_policy_dev_state_t state, 132 const char *device_address) 133 { 134 if (mpAudioPolicy == NULL) { 135 return NO_INIT; 136 } 137 if (!settingsAllowed()) { 138 return PERMISSION_DENIED; 139 } 140 if (!audio_is_output_device(device) && !audio_is_input_device(device)) { 141 return BAD_VALUE; 142 } 143 if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE && 144 state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 145 return BAD_VALUE; 146 } 147 148 ALOGV("setDeviceConnectionState() tid %d", gettid()); 149 Mutex::Autolock _l(mLock); 150 return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device, 151 state, device_address); 152 } 153 154 audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState( 155 audio_devices_t device, 156 const char *device_address) 157 { 158 if (mpAudioPolicy == NULL) { 159 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 160 } 161 return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device, 162 device_address); 163 } 164 165 status_t AudioPolicyService::setPhoneState(audio_mode_t state) 166 { 167 if (mpAudioPolicy == NULL) { 168 return NO_INIT; 169 } 170 if (!settingsAllowed()) { 171 return PERMISSION_DENIED; 172 } 173 if (uint32_t(state) >= AUDIO_MODE_CNT) { 174 return BAD_VALUE; 175 } 176 177 ALOGV("setPhoneState() tid %d", gettid()); 178 179 // TODO: check if it is more appropriate to do it in platform specific policy manager 180 AudioSystem::setMode(state); 181 182 Mutex::Autolock _l(mLock); 183 mpAudioPolicy->set_phone_state(mpAudioPolicy, state); 184 return NO_ERROR; 185 } 186 187 status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage, 188 audio_policy_forced_cfg_t config) 189 { 190 if (mpAudioPolicy == NULL) { 191 return NO_INIT; 192 } 193 if (!settingsAllowed()) { 194 return PERMISSION_DENIED; 195 } 196 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 197 return BAD_VALUE; 198 } 199 if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) { 200 return BAD_VALUE; 201 } 202 ALOGV("setForceUse() tid %d", gettid()); 203 Mutex::Autolock _l(mLock); 204 mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config); 205 return NO_ERROR; 206 } 207 208 audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage) 209 { 210 if (mpAudioPolicy == NULL) { 211 return AUDIO_POLICY_FORCE_NONE; 212 } 213 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 214 return AUDIO_POLICY_FORCE_NONE; 215 } 216 return mpAudioPolicy->get_force_use(mpAudioPolicy, usage); 217 } 218 219 audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream, 220 uint32_t samplingRate, 221 audio_format_t format, 222 audio_channel_mask_t channelMask, 223 audio_output_flags_t flags) 224 { 225 if (mpAudioPolicy == NULL) { 226 return 0; 227 } 228 ALOGV("getOutput() tid %d", gettid()); 229 Mutex::Autolock _l(mLock); 230 return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channelMask, flags); 231 } 232 233 status_t AudioPolicyService::startOutput(audio_io_handle_t output, 234 audio_stream_type_t stream, 235 int session) 236 { 237 if (mpAudioPolicy == NULL) { 238 return NO_INIT; 239 } 240 ALOGV("startOutput() tid %d", gettid()); 241 Mutex::Autolock _l(mLock); 242 return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); 243 } 244 245 status_t AudioPolicyService::stopOutput(audio_io_handle_t output, 246 audio_stream_type_t stream, 247 int session) 248 { 249 if (mpAudioPolicy == NULL) { 250 return NO_INIT; 251 } 252 ALOGV("stopOutput() tid %d", gettid()); 253 Mutex::Autolock _l(mLock); 254 return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); 255 } 256 257 void AudioPolicyService::releaseOutput(audio_io_handle_t output) 258 { 259 if (mpAudioPolicy == NULL) { 260 return; 261 } 262 ALOGV("releaseOutput() tid %d", gettid()); 263 Mutex::Autolock _l(mLock); 264 mpAudioPolicy->release_output(mpAudioPolicy, output); 265 } 266 267 audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource, 268 uint32_t samplingRate, 269 audio_format_t format, 270 audio_channel_mask_t channelMask, 271 int audioSession) 272 { 273 if (mpAudioPolicy == NULL) { 274 return 0; 275 } 276 // already checked by client, but double-check in case the client wrapper is bypassed 277 if (uint32_t(inputSource) >= AUDIO_SOURCE_CNT) { 278 return 0; 279 } 280 Mutex::Autolock _l(mLock); 281 // the audio_in_acoustics_t parameter is ignored by get_input() 282 audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, 283 format, channelMask, (audio_in_acoustics_t) 0); 284 285 if (input == 0) { 286 return input; 287 } 288 // create audio pre processors according to input source 289 ssize_t index = mInputSources.indexOfKey(inputSource); 290 if (index < 0) { 291 return input; 292 } 293 ssize_t idx = mInputs.indexOfKey(input); 294 InputDesc *inputDesc; 295 if (idx < 0) { 296 inputDesc = new InputDesc(audioSession); 297 mInputs.add(input, inputDesc); 298 } else { 299 inputDesc = mInputs.valueAt(idx); 300 } 301 302 Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects; 303 for (size_t i = 0; i < effects.size(); i++) { 304 EffectDesc *effect = effects[i]; 305 sp<AudioEffect> fx = new AudioEffect(NULL, &effect->mUuid, -1, 0, 0, audioSession, input); 306 status_t status = fx->initCheck(); 307 if (status != NO_ERROR && status != ALREADY_EXISTS) { 308 ALOGW("Failed to create Fx %s on input %d", effect->mName, input); 309 // fx goes out of scope and strong ref on AudioEffect is released 310 continue; 311 } 312 for (size_t j = 0; j < effect->mParams.size(); j++) { 313 fx->setParameter(effect->mParams[j]); 314 } 315 inputDesc->mEffects.add(fx); 316 } 317 setPreProcessorEnabled(inputDesc, true); 318 return input; 319 } 320 321 status_t AudioPolicyService::startInput(audio_io_handle_t input) 322 { 323 if (mpAudioPolicy == NULL) { 324 return NO_INIT; 325 } 326 Mutex::Autolock _l(mLock); 327 328 return mpAudioPolicy->start_input(mpAudioPolicy, input); 329 } 330 331 status_t AudioPolicyService::stopInput(audio_io_handle_t input) 332 { 333 if (mpAudioPolicy == NULL) { 334 return NO_INIT; 335 } 336 Mutex::Autolock _l(mLock); 337 338 return mpAudioPolicy->stop_input(mpAudioPolicy, input); 339 } 340 341 void AudioPolicyService::releaseInput(audio_io_handle_t input) 342 { 343 if (mpAudioPolicy == NULL) { 344 return; 345 } 346 Mutex::Autolock _l(mLock); 347 mpAudioPolicy->release_input(mpAudioPolicy, input); 348 349 ssize_t index = mInputs.indexOfKey(input); 350 if (index < 0) { 351 return; 352 } 353 InputDesc *inputDesc = mInputs.valueAt(index); 354 setPreProcessorEnabled(inputDesc, false); 355 delete inputDesc; 356 mInputs.removeItemsAt(index); 357 } 358 359 status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, 360 int indexMin, 361 int indexMax) 362 { 363 if (mpAudioPolicy == NULL) { 364 return NO_INIT; 365 } 366 if (!settingsAllowed()) { 367 return PERMISSION_DENIED; 368 } 369 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 370 return BAD_VALUE; 371 } 372 Mutex::Autolock _l(mLock); 373 mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax); 374 return NO_ERROR; 375 } 376 377 status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream, 378 int index, 379 audio_devices_t device) 380 { 381 if (mpAudioPolicy == NULL) { 382 return NO_INIT; 383 } 384 if (!settingsAllowed()) { 385 return PERMISSION_DENIED; 386 } 387 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 388 return BAD_VALUE; 389 } 390 Mutex::Autolock _l(mLock); 391 if (mpAudioPolicy->set_stream_volume_index_for_device) { 392 return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy, 393 stream, 394 index, 395 device); 396 } else { 397 return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index); 398 } 399 } 400 401 status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream, 402 int *index, 403 audio_devices_t device) 404 { 405 if (mpAudioPolicy == NULL) { 406 return NO_INIT; 407 } 408 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 409 return BAD_VALUE; 410 } 411 Mutex::Autolock _l(mLock); 412 if (mpAudioPolicy->get_stream_volume_index_for_device) { 413 return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy, 414 stream, 415 index, 416 device); 417 } else { 418 return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); 419 } 420 } 421 422 uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) 423 { 424 if (mpAudioPolicy == NULL) { 425 return 0; 426 } 427 return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); 428 } 429 430 //audio policy: use audio_device_t appropriately 431 432 audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) 433 { 434 if (mpAudioPolicy == NULL) { 435 return (audio_devices_t)0; 436 } 437 return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); 438 } 439 440 audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc) 441 { 442 if (mpAudioPolicy == NULL) { 443 return NO_INIT; 444 } 445 Mutex::Autolock _l(mLock); 446 return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); 447 } 448 449 status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc, 450 audio_io_handle_t io, 451 uint32_t strategy, 452 int session, 453 int id) 454 { 455 if (mpAudioPolicy == NULL) { 456 return NO_INIT; 457 } 458 return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id); 459 } 460 461 status_t AudioPolicyService::unregisterEffect(int id) 462 { 463 if (mpAudioPolicy == NULL) { 464 return NO_INIT; 465 } 466 return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); 467 } 468 469 status_t AudioPolicyService::setEffectEnabled(int id, bool enabled) 470 { 471 if (mpAudioPolicy == NULL) { 472 return NO_INIT; 473 } 474 return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled); 475 } 476 477 bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 478 { 479 if (mpAudioPolicy == NULL) { 480 return 0; 481 } 482 Mutex::Autolock _l(mLock); 483 return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); 484 } 485 486 bool AudioPolicyService::isSourceActive(audio_source_t source) const 487 { 488 if (mpAudioPolicy == NULL) { 489 return false; 490 } 491 if (mpAudioPolicy->is_source_active == 0) { 492 return false; 493 } 494 Mutex::Autolock _l(mLock); 495 return mpAudioPolicy->is_source_active(mpAudioPolicy, source); 496 } 497 498 status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession, 499 effect_descriptor_t *descriptors, 500 uint32_t *count) 501 { 502 503 if (mpAudioPolicy == NULL) { 504 *count = 0; 505 return NO_INIT; 506 } 507 Mutex::Autolock _l(mLock); 508 status_t status = NO_ERROR; 509 510 size_t index; 511 for (index = 0; index < mInputs.size(); index++) { 512 if (mInputs.valueAt(index)->mSessionId == audioSession) { 513 break; 514 } 515 } 516 if (index == mInputs.size()) { 517 *count = 0; 518 return BAD_VALUE; 519 } 520 Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects; 521 522 for (size_t i = 0; i < effects.size(); i++) { 523 effect_descriptor_t desc = effects[i]->descriptor(); 524 if (i < *count) { 525 descriptors[i] = desc; 526 } 527 } 528 if (effects.size() > *count) { 529 status = NO_MEMORY; 530 } 531 *count = effects.size(); 532 return status; 533 } 534 535 void AudioPolicyService::binderDied(const wp<IBinder>& who) { 536 ALOGW("binderDied() %p, tid %d, calling pid %d", who.unsafe_get(), gettid(), 537 IPCThreadState::self()->getCallingPid()); 538 } 539 540 static bool tryLock(Mutex& mutex) 541 { 542 bool locked = false; 543 for (int i = 0; i < kDumpLockRetries; ++i) { 544 if (mutex.tryLock() == NO_ERROR) { 545 locked = true; 546 break; 547 } 548 usleep(kDumpLockSleepUs); 549 } 550 return locked; 551 } 552 553 status_t AudioPolicyService::dumpInternals(int fd) 554 { 555 const size_t SIZE = 256; 556 char buffer[SIZE]; 557 String8 result; 558 559 snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); 560 result.append(buffer); 561 snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); 562 result.append(buffer); 563 snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); 564 result.append(buffer); 565 566 write(fd, result.string(), result.size()); 567 return NO_ERROR; 568 } 569 570 status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) 571 { 572 if (!dumpAllowed()) { 573 dumpPermissionDenial(fd); 574 } else { 575 bool locked = tryLock(mLock); 576 if (!locked) { 577 String8 result(kDeadlockedString); 578 write(fd, result.string(), result.size()); 579 } 580 581 dumpInternals(fd); 582 if (mAudioCommandThread != 0) { 583 mAudioCommandThread->dump(fd); 584 } 585 if (mTonePlaybackThread != 0) { 586 mTonePlaybackThread->dump(fd); 587 } 588 589 if (mpAudioPolicy) { 590 mpAudioPolicy->dump(mpAudioPolicy, fd); 591 } 592 593 if (locked) mLock.unlock(); 594 } 595 return NO_ERROR; 596 } 597 598 status_t AudioPolicyService::dumpPermissionDenial(int fd) 599 { 600 const size_t SIZE = 256; 601 char buffer[SIZE]; 602 String8 result; 603 snprintf(buffer, SIZE, "Permission Denial: " 604 "can't dump AudioPolicyService from pid=%d, uid=%d\n", 605 IPCThreadState::self()->getCallingPid(), 606 IPCThreadState::self()->getCallingUid()); 607 result.append(buffer); 608 write(fd, result.string(), result.size()); 609 return NO_ERROR; 610 } 611 612 void AudioPolicyService::setPreProcessorEnabled(const InputDesc *inputDesc, bool enabled) 613 { 614 const Vector<sp<AudioEffect> > &fxVector = inputDesc->mEffects; 615 for (size_t i = 0; i < fxVector.size(); i++) { 616 fxVector.itemAt(i)->setEnabled(enabled); 617 } 618 } 619 620 status_t AudioPolicyService::onTransact( 621 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 622 { 623 return BnAudioPolicyService::onTransact(code, data, reply, flags); 624 } 625 626 627 // ----------- AudioPolicyService::AudioCommandThread implementation ---------- 628 629 AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name) 630 : Thread(false), mName(name) 631 { 632 mpToneGenerator = NULL; 633 } 634 635 636 AudioPolicyService::AudioCommandThread::~AudioCommandThread() 637 { 638 if (mName != "" && !mAudioCommands.isEmpty()) { 639 release_wake_lock(mName.string()); 640 } 641 mAudioCommands.clear(); 642 delete mpToneGenerator; 643 } 644 645 void AudioPolicyService::AudioCommandThread::onFirstRef() 646 { 647 if (mName != "") { 648 run(mName.string(), ANDROID_PRIORITY_AUDIO); 649 } else { 650 run("AudioCommand", ANDROID_PRIORITY_AUDIO); 651 } 652 } 653 654 bool AudioPolicyService::AudioCommandThread::threadLoop() 655 { 656 nsecs_t waitTime = INT64_MAX; 657 658 mLock.lock(); 659 while (!exitPending()) 660 { 661 while (!mAudioCommands.isEmpty()) { 662 nsecs_t curTime = systemTime(); 663 // commands are sorted by increasing time stamp: execute them from index 0 and up 664 if (mAudioCommands[0]->mTime <= curTime) { 665 AudioCommand *command = mAudioCommands[0]; 666 mAudioCommands.removeAt(0); 667 mLastCommand = *command; 668 669 switch (command->mCommand) { 670 case START_TONE: { 671 mLock.unlock(); 672 ToneData *data = (ToneData *)command->mParam; 673 ALOGV("AudioCommandThread() processing start tone %d on stream %d", 674 data->mType, data->mStream); 675 delete mpToneGenerator; 676 mpToneGenerator = new ToneGenerator(data->mStream, 1.0); 677 mpToneGenerator->startTone(data->mType); 678 delete data; 679 mLock.lock(); 680 }break; 681 case STOP_TONE: { 682 mLock.unlock(); 683 ALOGV("AudioCommandThread() processing stop tone"); 684 if (mpToneGenerator != NULL) { 685 mpToneGenerator->stopTone(); 686 delete mpToneGenerator; 687 mpToneGenerator = NULL; 688 } 689 mLock.lock(); 690 }break; 691 case SET_VOLUME: { 692 VolumeData *data = (VolumeData *)command->mParam; 693 ALOGV("AudioCommandThread() processing set volume stream %d, \ 694 volume %f, output %d", data->mStream, data->mVolume, data->mIO); 695 command->mStatus = AudioSystem::setStreamVolume(data->mStream, 696 data->mVolume, 697 data->mIO); 698 if (command->mWaitStatus) { 699 command->mCond.signal(); 700 mWaitWorkCV.wait(mLock); 701 } 702 delete data; 703 }break; 704 case SET_PARAMETERS: { 705 ParametersData *data = (ParametersData *)command->mParam; 706 ALOGV("AudioCommandThread() processing set parameters string %s, io %d", 707 data->mKeyValuePairs.string(), data->mIO); 708 command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); 709 if (command->mWaitStatus) { 710 command->mCond.signal(); 711 mWaitWorkCV.wait(mLock); 712 } 713 delete data; 714 }break; 715 case SET_VOICE_VOLUME: { 716 VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; 717 ALOGV("AudioCommandThread() processing set voice volume volume %f", 718 data->mVolume); 719 command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); 720 if (command->mWaitStatus) { 721 command->mCond.signal(); 722 mWaitWorkCV.wait(mLock); 723 } 724 delete data; 725 }break; 726 default: 727 ALOGW("AudioCommandThread() unknown command %d", command->mCommand); 728 } 729 delete command; 730 waitTime = INT64_MAX; 731 } else { 732 waitTime = mAudioCommands[0]->mTime - curTime; 733 break; 734 } 735 } 736 // release delayed commands wake lock 737 if (mName != "" && mAudioCommands.isEmpty()) { 738 release_wake_lock(mName.string()); 739 } 740 ALOGV("AudioCommandThread() going to sleep"); 741 mWaitWorkCV.waitRelative(mLock, waitTime); 742 ALOGV("AudioCommandThread() waking up"); 743 } 744 mLock.unlock(); 745 return false; 746 } 747 748 status_t AudioPolicyService::AudioCommandThread::dump(int fd) 749 { 750 const size_t SIZE = 256; 751 char buffer[SIZE]; 752 String8 result; 753 754 snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); 755 result.append(buffer); 756 write(fd, result.string(), result.size()); 757 758 bool locked = tryLock(mLock); 759 if (!locked) { 760 String8 result2(kCmdDeadlockedString); 761 write(fd, result2.string(), result2.size()); 762 } 763 764 snprintf(buffer, SIZE, "- Commands:\n"); 765 result = String8(buffer); 766 result.append(" Command Time Wait pParam\n"); 767 for (size_t i = 0; i < mAudioCommands.size(); i++) { 768 mAudioCommands[i]->dump(buffer, SIZE); 769 result.append(buffer); 770 } 771 result.append(" Last Command\n"); 772 mLastCommand.dump(buffer, SIZE); 773 result.append(buffer); 774 775 write(fd, result.string(), result.size()); 776 777 if (locked) mLock.unlock(); 778 779 return NO_ERROR; 780 } 781 782 void AudioPolicyService::AudioCommandThread::startToneCommand(ToneGenerator::tone_type type, 783 audio_stream_type_t stream) 784 { 785 AudioCommand *command = new AudioCommand(); 786 command->mCommand = START_TONE; 787 ToneData *data = new ToneData(); 788 data->mType = type; 789 data->mStream = stream; 790 command->mParam = (void *)data; 791 Mutex::Autolock _l(mLock); 792 insertCommand_l(command); 793 ALOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); 794 mWaitWorkCV.signal(); 795 } 796 797 void AudioPolicyService::AudioCommandThread::stopToneCommand() 798 { 799 AudioCommand *command = new AudioCommand(); 800 command->mCommand = STOP_TONE; 801 command->mParam = NULL; 802 Mutex::Autolock _l(mLock); 803 insertCommand_l(command); 804 ALOGV("AudioCommandThread() adding tone stop"); 805 mWaitWorkCV.signal(); 806 } 807 808 status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, 809 float volume, 810 audio_io_handle_t output, 811 int delayMs) 812 { 813 status_t status = NO_ERROR; 814 815 AudioCommand *command = new AudioCommand(); 816 command->mCommand = SET_VOLUME; 817 VolumeData *data = new VolumeData(); 818 data->mStream = stream; 819 data->mVolume = volume; 820 data->mIO = output; 821 command->mParam = data; 822 Mutex::Autolock _l(mLock); 823 insertCommand_l(command, delayMs); 824 ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", 825 stream, volume, output); 826 mWaitWorkCV.signal(); 827 if (command->mWaitStatus) { 828 command->mCond.wait(mLock); 829 status = command->mStatus; 830 mWaitWorkCV.signal(); 831 } 832 return status; 833 } 834 835 status_t AudioPolicyService::AudioCommandThread::parametersCommand(audio_io_handle_t ioHandle, 836 const char *keyValuePairs, 837 int delayMs) 838 { 839 status_t status = NO_ERROR; 840 841 AudioCommand *command = new AudioCommand(); 842 command->mCommand = SET_PARAMETERS; 843 ParametersData *data = new ParametersData(); 844 data->mIO = ioHandle; 845 data->mKeyValuePairs = String8(keyValuePairs); 846 command->mParam = data; 847 Mutex::Autolock _l(mLock); 848 insertCommand_l(command, delayMs); 849 ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", 850 keyValuePairs, ioHandle, delayMs); 851 mWaitWorkCV.signal(); 852 if (command->mWaitStatus) { 853 command->mCond.wait(mLock); 854 status = command->mStatus; 855 mWaitWorkCV.signal(); 856 } 857 return status; 858 } 859 860 status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) 861 { 862 status_t status = NO_ERROR; 863 864 AudioCommand *command = new AudioCommand(); 865 command->mCommand = SET_VOICE_VOLUME; 866 VoiceVolumeData *data = new VoiceVolumeData(); 867 data->mVolume = volume; 868 command->mParam = data; 869 Mutex::Autolock _l(mLock); 870 insertCommand_l(command, delayMs); 871 ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); 872 mWaitWorkCV.signal(); 873 if (command->mWaitStatus) { 874 command->mCond.wait(mLock); 875 status = command->mStatus; 876 mWaitWorkCV.signal(); 877 } 878 return status; 879 } 880 881 // insertCommand_l() must be called with mLock held 882 void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) 883 { 884 ssize_t i; // not size_t because i will count down to -1 885 Vector <AudioCommand *> removedCommands; 886 887 nsecs_t time = 0; 888 command->mTime = systemTime() + milliseconds(delayMs); 889 890 // acquire wake lock to make sure delayed commands are processed 891 if (mName != "" && mAudioCommands.isEmpty()) { 892 acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); 893 } 894 895 // check same pending commands with later time stamps and eliminate them 896 for (i = mAudioCommands.size()-1; i >= 0; i--) { 897 AudioCommand *command2 = mAudioCommands[i]; 898 // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands 899 if (command2->mTime <= command->mTime) break; 900 if (command2->mCommand != command->mCommand) continue; 901 902 switch (command->mCommand) { 903 case SET_PARAMETERS: { 904 ParametersData *data = (ParametersData *)command->mParam; 905 ParametersData *data2 = (ParametersData *)command2->mParam; 906 if (data->mIO != data2->mIO) break; 907 ALOGV("Comparing parameter command %s to new command %s", 908 data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); 909 AudioParameter param = AudioParameter(data->mKeyValuePairs); 910 AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); 911 for (size_t j = 0; j < param.size(); j++) { 912 String8 key; 913 String8 value; 914 param.getAt(j, key, value); 915 for (size_t k = 0; k < param2.size(); k++) { 916 String8 key2; 917 String8 value2; 918 param2.getAt(k, key2, value2); 919 if (key2 == key) { 920 param2.remove(key2); 921 ALOGV("Filtering out parameter %s", key2.string()); 922 break; 923 } 924 } 925 } 926 // if all keys have been filtered out, remove the command. 927 // otherwise, update the key value pairs 928 if (param2.size() == 0) { 929 removedCommands.add(command2); 930 } else { 931 data2->mKeyValuePairs = param2.toString(); 932 } 933 time = command2->mTime; 934 } break; 935 936 case SET_VOLUME: { 937 VolumeData *data = (VolumeData *)command->mParam; 938 VolumeData *data2 = (VolumeData *)command2->mParam; 939 if (data->mIO != data2->mIO) break; 940 if (data->mStream != data2->mStream) break; 941 ALOGV("Filtering out volume command on output %d for stream %d", 942 data->mIO, data->mStream); 943 removedCommands.add(command2); 944 time = command2->mTime; 945 } break; 946 case START_TONE: 947 case STOP_TONE: 948 default: 949 break; 950 } 951 } 952 953 // remove filtered commands 954 for (size_t j = 0; j < removedCommands.size(); j++) { 955 // removed commands always have time stamps greater than current command 956 for (size_t k = i + 1; k < mAudioCommands.size(); k++) { 957 if (mAudioCommands[k] == removedCommands[j]) { 958 ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); 959 mAudioCommands.removeAt(k); 960 break; 961 } 962 } 963 } 964 removedCommands.clear(); 965 966 // wait for status only if delay is 0 and command time was not modified above 967 if (delayMs == 0 && time == 0) { 968 command->mWaitStatus = true; 969 } else { 970 command->mWaitStatus = false; 971 } 972 // update command time if modified above 973 if (time != 0) { 974 command->mTime = time; 975 } 976 977 // insert command at the right place according to its time stamp 978 ALOGV("inserting command: %d at index %d, num commands %d", 979 command->mCommand, (int)i+1, mAudioCommands.size()); 980 mAudioCommands.insertAt(command, i + 1); 981 } 982 983 void AudioPolicyService::AudioCommandThread::exit() 984 { 985 ALOGV("AudioCommandThread::exit"); 986 { 987 AutoMutex _l(mLock); 988 requestExit(); 989 mWaitWorkCV.signal(); 990 } 991 requestExitAndWait(); 992 } 993 994 void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) 995 { 996 snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", 997 mCommand, 998 (int)ns2s(mTime), 999 (int)ns2ms(mTime)%1000, 1000 mWaitStatus, 1001 mParam); 1002 } 1003 1004 /******* helpers for the service_ops callbacks defined below *********/ 1005 void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, 1006 const char *keyValuePairs, 1007 int delayMs) 1008 { 1009 mAudioCommandThread->parametersCommand(ioHandle, keyValuePairs, 1010 delayMs); 1011 } 1012 1013 int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, 1014 float volume, 1015 audio_io_handle_t output, 1016 int delayMs) 1017 { 1018 return (int)mAudioCommandThread->volumeCommand(stream, volume, 1019 output, delayMs); 1020 } 1021 1022 int AudioPolicyService::startTone(audio_policy_tone_t tone, 1023 audio_stream_type_t stream) 1024 { 1025 if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) 1026 ALOGE("startTone: illegal tone requested (%d)", tone); 1027 if (stream != AUDIO_STREAM_VOICE_CALL) 1028 ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, 1029 tone); 1030 mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, 1031 AUDIO_STREAM_VOICE_CALL); 1032 return 0; 1033 } 1034 1035 int AudioPolicyService::stopTone() 1036 { 1037 mTonePlaybackThread->stopToneCommand(); 1038 return 0; 1039 } 1040 1041 int AudioPolicyService::setVoiceVolume(float volume, int delayMs) 1042 { 1043 return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); 1044 } 1045 1046 // ---------------------------------------------------------------------------- 1047 // Audio pre-processing configuration 1048 // ---------------------------------------------------------------------------- 1049 1050 /*static*/ const char * const AudioPolicyService::kInputSourceNames[AUDIO_SOURCE_CNT -1] = { 1051 MIC_SRC_TAG, 1052 VOICE_UL_SRC_TAG, 1053 VOICE_DL_SRC_TAG, 1054 VOICE_CALL_SRC_TAG, 1055 CAMCORDER_SRC_TAG, 1056 VOICE_REC_SRC_TAG, 1057 VOICE_COMM_SRC_TAG 1058 }; 1059 1060 // returns the audio_source_t enum corresponding to the input source name or 1061 // AUDIO_SOURCE_CNT is no match found 1062 audio_source_t AudioPolicyService::inputSourceNameToEnum(const char *name) 1063 { 1064 int i; 1065 for (i = AUDIO_SOURCE_MIC; i < AUDIO_SOURCE_CNT; i++) { 1066 if (strcmp(name, kInputSourceNames[i - AUDIO_SOURCE_MIC]) == 0) { 1067 ALOGV("inputSourceNameToEnum found source %s %d", name, i); 1068 break; 1069 } 1070 } 1071 return (audio_source_t)i; 1072 } 1073 1074 size_t AudioPolicyService::growParamSize(char *param, 1075 size_t size, 1076 size_t *curSize, 1077 size_t *totSize) 1078 { 1079 // *curSize is at least sizeof(effect_param_t) + 2 * sizeof(int) 1080 size_t pos = ((*curSize - 1 ) / size + 1) * size; 1081 1082 if (pos + size > *totSize) { 1083 while (pos + size > *totSize) { 1084 *totSize += ((*totSize + 7) / 8) * 4; 1085 } 1086 param = (char *)realloc(param, *totSize); 1087 } 1088 *curSize = pos + size; 1089 return pos; 1090 } 1091 1092 size_t AudioPolicyService::readParamValue(cnode *node, 1093 char *param, 1094 size_t *curSize, 1095 size_t *totSize) 1096 { 1097 if (strncmp(node->name, SHORT_TAG, sizeof(SHORT_TAG) + 1) == 0) { 1098 size_t pos = growParamSize(param, sizeof(short), curSize, totSize); 1099 *(short *)((char *)param + pos) = (short)atoi(node->value); 1100 ALOGV("readParamValue() reading short %d", *(short *)((char *)param + pos)); 1101 return sizeof(short); 1102 } else if (strncmp(node->name, INT_TAG, sizeof(INT_TAG) + 1) == 0) { 1103 size_t pos = growParamSize(param, sizeof(int), curSize, totSize); 1104 *(int *)((char *)param + pos) = atoi(node->value); 1105 ALOGV("readParamValue() reading int %d", *(int *)((char *)param + pos)); 1106 return sizeof(int); 1107 } else if (strncmp(node->name, FLOAT_TAG, sizeof(FLOAT_TAG) + 1) == 0) { 1108 size_t pos = growParamSize(param, sizeof(float), curSize, totSize); 1109 *(float *)((char *)param + pos) = (float)atof(node->value); 1110 ALOGV("readParamValue() reading float %f",*(float *)((char *)param + pos)); 1111 return sizeof(float); 1112 } else if (strncmp(node->name, BOOL_TAG, sizeof(BOOL_TAG) + 1) == 0) { 1113 size_t pos = growParamSize(param, sizeof(bool), curSize, totSize); 1114 if (strncmp(node->value, "false", strlen("false") + 1) == 0) { 1115 *(bool *)((char *)param + pos) = false; 1116 } else { 1117 *(bool *)((char *)param + pos) = true; 1118 } 1119 ALOGV("readParamValue() reading bool %s",*(bool *)((char *)param + pos) ? "true" : "false"); 1120 return sizeof(bool); 1121 } else if (strncmp(node->name, STRING_TAG, sizeof(STRING_TAG) + 1) == 0) { 1122 size_t len = strnlen(node->value, EFFECT_STRING_LEN_MAX); 1123 if (*curSize + len + 1 > *totSize) { 1124 *totSize = *curSize + len + 1; 1125 param = (char *)realloc(param, *totSize); 1126 } 1127 strncpy(param + *curSize, node->value, len); 1128 *curSize += len; 1129 param[*curSize] = '\0'; 1130 ALOGV("readParamValue() reading string %s", param + *curSize - len); 1131 return len; 1132 } 1133 ALOGW("readParamValue() unknown param type %s", node->name); 1134 return 0; 1135 } 1136 1137 effect_param_t *AudioPolicyService::loadEffectParameter(cnode *root) 1138 { 1139 cnode *param; 1140 cnode *value; 1141 size_t curSize = sizeof(effect_param_t); 1142 size_t totSize = sizeof(effect_param_t) + 2 * sizeof(int); 1143 effect_param_t *fx_param = (effect_param_t *)malloc(totSize); 1144 1145 param = config_find(root, PARAM_TAG); 1146 value = config_find(root, VALUE_TAG); 1147 if (param == NULL && value == NULL) { 1148 // try to parse simple parameter form {int int} 1149 param = root->first_child; 1150 if (param != NULL) { 1151 // Note: that a pair of random strings is read as 0 0 1152 int *ptr = (int *)fx_param->data; 1153 int *ptr2 = (int *)((char *)param + sizeof(effect_param_t)); 1154 ALOGW("loadEffectParameter() ptr %p ptr2 %p", ptr, ptr2); 1155 *ptr++ = atoi(param->name); 1156 *ptr = atoi(param->value); 1157 fx_param->psize = sizeof(int); 1158 fx_param->vsize = sizeof(int); 1159 return fx_param; 1160 } 1161 } 1162 if (param == NULL || value == NULL) { 1163 ALOGW("loadEffectParameter() invalid parameter description %s", root->name); 1164 goto error; 1165 } 1166 1167 fx_param->psize = 0; 1168 param = param->first_child; 1169 while (param) { 1170 ALOGV("loadEffectParameter() reading param of type %s", param->name); 1171 size_t size = readParamValue(param, (char *)fx_param, &curSize, &totSize); 1172 if (size == 0) { 1173 goto error; 1174 } 1175 fx_param->psize += size; 1176 param = param->next; 1177 } 1178 1179 // align start of value field on 32 bit boundary 1180 curSize = ((curSize - 1 ) / sizeof(int) + 1) * sizeof(int); 1181 1182 fx_param->vsize = 0; 1183 value = value->first_child; 1184 while (value) { 1185 ALOGV("loadEffectParameter() reading value of type %s", value->name); 1186 size_t size = readParamValue(value, (char *)fx_param, &curSize, &totSize); 1187 if (size == 0) { 1188 goto error; 1189 } 1190 fx_param->vsize += size; 1191 value = value->next; 1192 } 1193 1194 return fx_param; 1195 1196 error: 1197 delete fx_param; 1198 return NULL; 1199 } 1200 1201 void AudioPolicyService::loadEffectParameters(cnode *root, Vector <effect_param_t *>& params) 1202 { 1203 cnode *node = root->first_child; 1204 while (node) { 1205 ALOGV("loadEffectParameters() loading param %s", node->name); 1206 effect_param_t *param = loadEffectParameter(node); 1207 if (param == NULL) { 1208 node = node->next; 1209 continue; 1210 } 1211 params.add(param); 1212 node = node->next; 1213 } 1214 } 1215 1216 AudioPolicyService::InputSourceDesc *AudioPolicyService::loadInputSource( 1217 cnode *root, 1218 const Vector <EffectDesc *>& effects) 1219 { 1220 cnode *node = root->first_child; 1221 if (node == NULL) { 1222 ALOGW("loadInputSource() empty element %s", root->name); 1223 return NULL; 1224 } 1225 InputSourceDesc *source = new InputSourceDesc(); 1226 while (node) { 1227 size_t i; 1228 for (i = 0; i < effects.size(); i++) { 1229 if (strncmp(effects[i]->mName, node->name, EFFECT_STRING_LEN_MAX) == 0) { 1230 ALOGV("loadInputSource() found effect %s in list", node->name); 1231 break; 1232 } 1233 } 1234 if (i == effects.size()) { 1235 ALOGV("loadInputSource() effect %s not in list", node->name); 1236 node = node->next; 1237 continue; 1238 } 1239 EffectDesc *effect = new EffectDesc(*effects[i]); // deep copy 1240 loadEffectParameters(node, effect->mParams); 1241 ALOGV("loadInputSource() adding effect %s uuid %08x", effect->mName, effect->mUuid.timeLow); 1242 source->mEffects.add(effect); 1243 node = node->next; 1244 } 1245 if (source->mEffects.size() == 0) { 1246 ALOGW("loadInputSource() no valid effects found in source %s", root->name); 1247 delete source; 1248 return NULL; 1249 } 1250 return source; 1251 } 1252 1253 status_t AudioPolicyService::loadInputSources(cnode *root, const Vector <EffectDesc *>& effects) 1254 { 1255 cnode *node = config_find(root, PREPROCESSING_TAG); 1256 if (node == NULL) { 1257 return -ENOENT; 1258 } 1259 node = node->first_child; 1260 while (node) { 1261 audio_source_t source = inputSourceNameToEnum(node->name); 1262 if (source == AUDIO_SOURCE_CNT) { 1263 ALOGW("loadInputSources() invalid input source %s", node->name); 1264 node = node->next; 1265 continue; 1266 } 1267 ALOGV("loadInputSources() loading input source %s", node->name); 1268 InputSourceDesc *desc = loadInputSource(node, effects); 1269 if (desc == NULL) { 1270 node = node->next; 1271 continue; 1272 } 1273 mInputSources.add(source, desc); 1274 node = node->next; 1275 } 1276 return NO_ERROR; 1277 } 1278 1279 AudioPolicyService::EffectDesc *AudioPolicyService::loadEffect(cnode *root) 1280 { 1281 cnode *node = config_find(root, UUID_TAG); 1282 if (node == NULL) { 1283 return NULL; 1284 } 1285 effect_uuid_t uuid; 1286 if (AudioEffect::stringToGuid(node->value, &uuid) != NO_ERROR) { 1287 ALOGW("loadEffect() invalid uuid %s", node->value); 1288 return NULL; 1289 } 1290 return new EffectDesc(root->name, uuid); 1291 } 1292 1293 status_t AudioPolicyService::loadEffects(cnode *root, Vector <EffectDesc *>& effects) 1294 { 1295 cnode *node = config_find(root, EFFECTS_TAG); 1296 if (node == NULL) { 1297 return -ENOENT; 1298 } 1299 node = node->first_child; 1300 while (node) { 1301 ALOGV("loadEffects() loading effect %s", node->name); 1302 EffectDesc *effect = loadEffect(node); 1303 if (effect == NULL) { 1304 node = node->next; 1305 continue; 1306 } 1307 effects.add(effect); 1308 node = node->next; 1309 } 1310 return NO_ERROR; 1311 } 1312 1313 status_t AudioPolicyService::loadPreProcessorConfig(const char *path) 1314 { 1315 cnode *root; 1316 char *data; 1317 1318 data = (char *)load_file(path, NULL); 1319 if (data == NULL) { 1320 return -ENODEV; 1321 } 1322 root = config_node("", ""); 1323 config_load(root, data); 1324 1325 Vector <EffectDesc *> effects; 1326 loadEffects(root, effects); 1327 loadInputSources(root, effects); 1328 1329 config_free(root); 1330 free(root); 1331 free(data); 1332 1333 return NO_ERROR; 1334 } 1335 1336 /* implementation of the interface to the policy manager */ 1337 extern "C" { 1338 1339 1340 static audio_module_handle_t aps_load_hw_module(void *service, 1341 const char *name) 1342 { 1343 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1344 if (af == 0) { 1345 ALOGW("%s: could not get AudioFlinger", __func__); 1346 return 0; 1347 } 1348 1349 return af->loadHwModule(name); 1350 } 1351 1352 // deprecated: replaced by aps_open_output_on_module() 1353 static audio_io_handle_t aps_open_output(void *service, 1354 audio_devices_t *pDevices, 1355 uint32_t *pSamplingRate, 1356 audio_format_t *pFormat, 1357 audio_channel_mask_t *pChannelMask, 1358 uint32_t *pLatencyMs, 1359 audio_output_flags_t flags) 1360 { 1361 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1362 if (af == 0) { 1363 ALOGW("%s: could not get AudioFlinger", __func__); 1364 return 0; 1365 } 1366 1367 return af->openOutput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask, 1368 pLatencyMs, flags); 1369 } 1370 1371 static audio_io_handle_t aps_open_output_on_module(void *service, 1372 audio_module_handle_t module, 1373 audio_devices_t *pDevices, 1374 uint32_t *pSamplingRate, 1375 audio_format_t *pFormat, 1376 audio_channel_mask_t *pChannelMask, 1377 uint32_t *pLatencyMs, 1378 audio_output_flags_t flags) 1379 { 1380 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1381 if (af == 0) { 1382 ALOGW("%s: could not get AudioFlinger", __func__); 1383 return 0; 1384 } 1385 return af->openOutput(module, pDevices, pSamplingRate, pFormat, pChannelMask, 1386 pLatencyMs, flags); 1387 } 1388 1389 static audio_io_handle_t aps_open_dup_output(void *service, 1390 audio_io_handle_t output1, 1391 audio_io_handle_t output2) 1392 { 1393 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1394 if (af == 0) { 1395 ALOGW("%s: could not get AudioFlinger", __func__); 1396 return 0; 1397 } 1398 return af->openDuplicateOutput(output1, output2); 1399 } 1400 1401 static int aps_close_output(void *service, audio_io_handle_t output) 1402 { 1403 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1404 if (af == 0) 1405 return PERMISSION_DENIED; 1406 1407 return af->closeOutput(output); 1408 } 1409 1410 static int aps_suspend_output(void *service, audio_io_handle_t output) 1411 { 1412 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1413 if (af == 0) { 1414 ALOGW("%s: could not get AudioFlinger", __func__); 1415 return PERMISSION_DENIED; 1416 } 1417 1418 return af->suspendOutput(output); 1419 } 1420 1421 static int aps_restore_output(void *service, audio_io_handle_t output) 1422 { 1423 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1424 if (af == 0) { 1425 ALOGW("%s: could not get AudioFlinger", __func__); 1426 return PERMISSION_DENIED; 1427 } 1428 1429 return af->restoreOutput(output); 1430 } 1431 1432 // deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored 1433 static audio_io_handle_t aps_open_input(void *service, 1434 audio_devices_t *pDevices, 1435 uint32_t *pSamplingRate, 1436 audio_format_t *pFormat, 1437 audio_channel_mask_t *pChannelMask, 1438 audio_in_acoustics_t acoustics) 1439 { 1440 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1441 if (af == 0) { 1442 ALOGW("%s: could not get AudioFlinger", __func__); 1443 return 0; 1444 } 1445 1446 return af->openInput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask); 1447 } 1448 1449 static audio_io_handle_t aps_open_input_on_module(void *service, 1450 audio_module_handle_t module, 1451 audio_devices_t *pDevices, 1452 uint32_t *pSamplingRate, 1453 audio_format_t *pFormat, 1454 audio_channel_mask_t *pChannelMask) 1455 { 1456 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1457 if (af == 0) { 1458 ALOGW("%s: could not get AudioFlinger", __func__); 1459 return 0; 1460 } 1461 1462 return af->openInput(module, pDevices, pSamplingRate, pFormat, pChannelMask); 1463 } 1464 1465 static int aps_close_input(void *service, audio_io_handle_t input) 1466 { 1467 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1468 if (af == 0) 1469 return PERMISSION_DENIED; 1470 1471 return af->closeInput(input); 1472 } 1473 1474 static int aps_set_stream_output(void *service, audio_stream_type_t stream, 1475 audio_io_handle_t output) 1476 { 1477 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1478 if (af == 0) 1479 return PERMISSION_DENIED; 1480 1481 return af->setStreamOutput(stream, output); 1482 } 1483 1484 static int aps_move_effects(void *service, int session, 1485 audio_io_handle_t src_output, 1486 audio_io_handle_t dst_output) 1487 { 1488 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1489 if (af == 0) 1490 return PERMISSION_DENIED; 1491 1492 return af->moveEffects(session, src_output, dst_output); 1493 } 1494 1495 static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, 1496 const char *keys) 1497 { 1498 String8 result = AudioSystem::getParameters(io_handle, String8(keys)); 1499 return strdup(result.string()); 1500 } 1501 1502 static void aps_set_parameters(void *service, audio_io_handle_t io_handle, 1503 const char *kv_pairs, int delay_ms) 1504 { 1505 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1506 1507 audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); 1508 } 1509 1510 static int aps_set_stream_volume(void *service, audio_stream_type_t stream, 1511 float volume, audio_io_handle_t output, 1512 int delay_ms) 1513 { 1514 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1515 1516 return audioPolicyService->setStreamVolume(stream, volume, output, 1517 delay_ms); 1518 } 1519 1520 static int aps_start_tone(void *service, audio_policy_tone_t tone, 1521 audio_stream_type_t stream) 1522 { 1523 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1524 1525 return audioPolicyService->startTone(tone, stream); 1526 } 1527 1528 static int aps_stop_tone(void *service) 1529 { 1530 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1531 1532 return audioPolicyService->stopTone(); 1533 } 1534 1535 static int aps_set_voice_volume(void *service, float volume, int delay_ms) 1536 { 1537 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1538 1539 return audioPolicyService->setVoiceVolume(volume, delay_ms); 1540 } 1541 1542 }; // extern "C" 1543 1544 namespace { 1545 struct audio_policy_service_ops aps_ops = { 1546 open_output : aps_open_output, 1547 open_duplicate_output : aps_open_dup_output, 1548 close_output : aps_close_output, 1549 suspend_output : aps_suspend_output, 1550 restore_output : aps_restore_output, 1551 open_input : aps_open_input, 1552 close_input : aps_close_input, 1553 set_stream_volume : aps_set_stream_volume, 1554 set_stream_output : aps_set_stream_output, 1555 set_parameters : aps_set_parameters, 1556 get_parameters : aps_get_parameters, 1557 start_tone : aps_start_tone, 1558 stop_tone : aps_stop_tone, 1559 set_voice_volume : aps_set_voice_volume, 1560 move_effects : aps_move_effects, 1561 load_hw_module : aps_load_hw_module, 1562 open_output_on_module : aps_open_output_on_module, 1563 open_input_on_module : aps_open_input_on_module, 1564 }; 1565 }; // namespace <unnamed> 1566 1567 }; // namespace android 1568
