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()"); 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()"); 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()"); 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()"); 229 Mutex::Autolock _l(mLock); 230 return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channelMask, 231 flags); 232 } 233 234 status_t AudioPolicyService::startOutput(audio_io_handle_t output, 235 audio_stream_type_t stream, 236 int session) 237 { 238 if (mpAudioPolicy == NULL) { 239 return NO_INIT; 240 } 241 ALOGV("startOutput()"); 242 Mutex::Autolock _l(mLock); 243 return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); 244 } 245 246 status_t AudioPolicyService::stopOutput(audio_io_handle_t output, 247 audio_stream_type_t stream, 248 int session) 249 { 250 if (mpAudioPolicy == NULL) { 251 return NO_INIT; 252 } 253 ALOGV("stopOutput()"); 254 Mutex::Autolock _l(mLock); 255 return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); 256 } 257 258 void AudioPolicyService::releaseOutput(audio_io_handle_t output) 259 { 260 if (mpAudioPolicy == NULL) { 261 return; 262 } 263 ALOGV("releaseOutput()"); 264 Mutex::Autolock _l(mLock); 265 mpAudioPolicy->release_output(mpAudioPolicy, output); 266 } 267 268 audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource, 269 uint32_t samplingRate, 270 audio_format_t format, 271 audio_channel_mask_t channelMask, 272 int audioSession) 273 { 274 if (mpAudioPolicy == NULL) { 275 return 0; 276 } 277 // already checked by client, but double-check in case the client wrapper is bypassed 278 if (uint32_t(inputSource) >= AUDIO_SOURCE_CNT) { 279 return 0; 280 } 281 Mutex::Autolock _l(mLock); 282 // the audio_in_acoustics_t parameter is ignored by get_input() 283 audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, 284 format, channelMask, (audio_in_acoustics_t) 0); 285 286 if (input == 0) { 287 return input; 288 } 289 // create audio pre processors according to input source 290 ssize_t index = mInputSources.indexOfKey(inputSource); 291 if (index < 0) { 292 return input; 293 } 294 ssize_t idx = mInputs.indexOfKey(input); 295 InputDesc *inputDesc; 296 if (idx < 0) { 297 inputDesc = new InputDesc(audioSession); 298 mInputs.add(input, inputDesc); 299 } else { 300 inputDesc = mInputs.valueAt(idx); 301 } 302 303 Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects; 304 for (size_t i = 0; i < effects.size(); i++) { 305 EffectDesc *effect = effects[i]; 306 sp<AudioEffect> fx = new AudioEffect(NULL, &effect->mUuid, -1, 0, 0, audioSession, input); 307 status_t status = fx->initCheck(); 308 if (status != NO_ERROR && status != ALREADY_EXISTS) { 309 ALOGW("Failed to create Fx %s on input %d", effect->mName, input); 310 // fx goes out of scope and strong ref on AudioEffect is released 311 continue; 312 } 313 for (size_t j = 0; j < effect->mParams.size(); j++) { 314 fx->setParameter(effect->mParams[j]); 315 } 316 inputDesc->mEffects.add(fx); 317 } 318 setPreProcessorEnabled(inputDesc, true); 319 return input; 320 } 321 322 status_t AudioPolicyService::startInput(audio_io_handle_t input) 323 { 324 if (mpAudioPolicy == NULL) { 325 return NO_INIT; 326 } 327 Mutex::Autolock _l(mLock); 328 329 return mpAudioPolicy->start_input(mpAudioPolicy, input); 330 } 331 332 status_t AudioPolicyService::stopInput(audio_io_handle_t input) 333 { 334 if (mpAudioPolicy == NULL) { 335 return NO_INIT; 336 } 337 Mutex::Autolock _l(mLock); 338 339 return mpAudioPolicy->stop_input(mpAudioPolicy, input); 340 } 341 342 void AudioPolicyService::releaseInput(audio_io_handle_t input) 343 { 344 if (mpAudioPolicy == NULL) { 345 return; 346 } 347 Mutex::Autolock _l(mLock); 348 mpAudioPolicy->release_input(mpAudioPolicy, input); 349 350 ssize_t index = mInputs.indexOfKey(input); 351 if (index < 0) { 352 return; 353 } 354 InputDesc *inputDesc = mInputs.valueAt(index); 355 setPreProcessorEnabled(inputDesc, false); 356 delete inputDesc; 357 mInputs.removeItemsAt(index); 358 } 359 360 status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, 361 int indexMin, 362 int indexMax) 363 { 364 if (mpAudioPolicy == NULL) { 365 return NO_INIT; 366 } 367 if (!settingsAllowed()) { 368 return PERMISSION_DENIED; 369 } 370 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 371 return BAD_VALUE; 372 } 373 Mutex::Autolock _l(mLock); 374 mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax); 375 return NO_ERROR; 376 } 377 378 status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream, 379 int index, 380 audio_devices_t device) 381 { 382 if (mpAudioPolicy == NULL) { 383 return NO_INIT; 384 } 385 if (!settingsAllowed()) { 386 return PERMISSION_DENIED; 387 } 388 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 389 return BAD_VALUE; 390 } 391 Mutex::Autolock _l(mLock); 392 if (mpAudioPolicy->set_stream_volume_index_for_device) { 393 return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy, 394 stream, 395 index, 396 device); 397 } else { 398 return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index); 399 } 400 } 401 402 status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream, 403 int *index, 404 audio_devices_t device) 405 { 406 if (mpAudioPolicy == NULL) { 407 return NO_INIT; 408 } 409 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 410 return BAD_VALUE; 411 } 412 Mutex::Autolock _l(mLock); 413 if (mpAudioPolicy->get_stream_volume_index_for_device) { 414 return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy, 415 stream, 416 index, 417 device); 418 } else { 419 return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); 420 } 421 } 422 423 uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) 424 { 425 if (mpAudioPolicy == NULL) { 426 return 0; 427 } 428 return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); 429 } 430 431 //audio policy: use audio_device_t appropriately 432 433 audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) 434 { 435 if (mpAudioPolicy == NULL) { 436 return (audio_devices_t)0; 437 } 438 return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); 439 } 440 441 audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc) 442 { 443 if (mpAudioPolicy == NULL) { 444 return NO_INIT; 445 } 446 Mutex::Autolock _l(mLock); 447 return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); 448 } 449 450 status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc, 451 audio_io_handle_t io, 452 uint32_t strategy, 453 int session, 454 int id) 455 { 456 if (mpAudioPolicy == NULL) { 457 return NO_INIT; 458 } 459 return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id); 460 } 461 462 status_t AudioPolicyService::unregisterEffect(int id) 463 { 464 if (mpAudioPolicy == NULL) { 465 return NO_INIT; 466 } 467 return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); 468 } 469 470 status_t AudioPolicyService::setEffectEnabled(int id, bool enabled) 471 { 472 if (mpAudioPolicy == NULL) { 473 return NO_INIT; 474 } 475 return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled); 476 } 477 478 bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 479 { 480 if (mpAudioPolicy == NULL) { 481 return 0; 482 } 483 Mutex::Autolock _l(mLock); 484 return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); 485 } 486 487 bool AudioPolicyService::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const 488 { 489 if (mpAudioPolicy == NULL) { 490 return 0; 491 } 492 Mutex::Autolock _l(mLock); 493 return mpAudioPolicy->is_stream_active_remotely(mpAudioPolicy, stream, inPastMs); 494 } 495 496 bool AudioPolicyService::isSourceActive(audio_source_t source) const 497 { 498 if (mpAudioPolicy == NULL) { 499 return false; 500 } 501 if (mpAudioPolicy->is_source_active == 0) { 502 return false; 503 } 504 Mutex::Autolock _l(mLock); 505 return mpAudioPolicy->is_source_active(mpAudioPolicy, source); 506 } 507 508 status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession, 509 effect_descriptor_t *descriptors, 510 uint32_t *count) 511 { 512 513 if (mpAudioPolicy == NULL) { 514 *count = 0; 515 return NO_INIT; 516 } 517 Mutex::Autolock _l(mLock); 518 status_t status = NO_ERROR; 519 520 size_t index; 521 for (index = 0; index < mInputs.size(); index++) { 522 if (mInputs.valueAt(index)->mSessionId == audioSession) { 523 break; 524 } 525 } 526 if (index == mInputs.size()) { 527 *count = 0; 528 return BAD_VALUE; 529 } 530 Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects; 531 532 for (size_t i = 0; i < effects.size(); i++) { 533 effect_descriptor_t desc = effects[i]->descriptor(); 534 if (i < *count) { 535 descriptors[i] = desc; 536 } 537 } 538 if (effects.size() > *count) { 539 status = NO_MEMORY; 540 } 541 *count = effects.size(); 542 return status; 543 } 544 545 void AudioPolicyService::binderDied(const wp<IBinder>& who) { 546 ALOGW("binderDied() %p, calling pid %d", who.unsafe_get(), 547 IPCThreadState::self()->getCallingPid()); 548 } 549 550 static bool tryLock(Mutex& mutex) 551 { 552 bool locked = false; 553 for (int i = 0; i < kDumpLockRetries; ++i) { 554 if (mutex.tryLock() == NO_ERROR) { 555 locked = true; 556 break; 557 } 558 usleep(kDumpLockSleepUs); 559 } 560 return locked; 561 } 562 563 status_t AudioPolicyService::dumpInternals(int fd) 564 { 565 const size_t SIZE = 256; 566 char buffer[SIZE]; 567 String8 result; 568 569 snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); 570 result.append(buffer); 571 snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); 572 result.append(buffer); 573 snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); 574 result.append(buffer); 575 576 write(fd, result.string(), result.size()); 577 return NO_ERROR; 578 } 579 580 status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) 581 { 582 if (!dumpAllowed()) { 583 dumpPermissionDenial(fd); 584 } else { 585 bool locked = tryLock(mLock); 586 if (!locked) { 587 String8 result(kDeadlockedString); 588 write(fd, result.string(), result.size()); 589 } 590 591 dumpInternals(fd); 592 if (mAudioCommandThread != 0) { 593 mAudioCommandThread->dump(fd); 594 } 595 if (mTonePlaybackThread != 0) { 596 mTonePlaybackThread->dump(fd); 597 } 598 599 if (mpAudioPolicy) { 600 mpAudioPolicy->dump(mpAudioPolicy, fd); 601 } 602 603 if (locked) mLock.unlock(); 604 } 605 return NO_ERROR; 606 } 607 608 status_t AudioPolicyService::dumpPermissionDenial(int fd) 609 { 610 const size_t SIZE = 256; 611 char buffer[SIZE]; 612 String8 result; 613 snprintf(buffer, SIZE, "Permission Denial: " 614 "can't dump AudioPolicyService from pid=%d, uid=%d\n", 615 IPCThreadState::self()->getCallingPid(), 616 IPCThreadState::self()->getCallingUid()); 617 result.append(buffer); 618 write(fd, result.string(), result.size()); 619 return NO_ERROR; 620 } 621 622 void AudioPolicyService::setPreProcessorEnabled(const InputDesc *inputDesc, bool enabled) 623 { 624 const Vector<sp<AudioEffect> > &fxVector = inputDesc->mEffects; 625 for (size_t i = 0; i < fxVector.size(); i++) { 626 fxVector.itemAt(i)->setEnabled(enabled); 627 } 628 } 629 630 status_t AudioPolicyService::onTransact( 631 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 632 { 633 return BnAudioPolicyService::onTransact(code, data, reply, flags); 634 } 635 636 637 // ----------- AudioPolicyService::AudioCommandThread implementation ---------- 638 639 AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name) 640 : Thread(false), mName(name) 641 { 642 mpToneGenerator = NULL; 643 } 644 645 646 AudioPolicyService::AudioCommandThread::~AudioCommandThread() 647 { 648 if (mName != "" && !mAudioCommands.isEmpty()) { 649 release_wake_lock(mName.string()); 650 } 651 mAudioCommands.clear(); 652 delete mpToneGenerator; 653 } 654 655 void AudioPolicyService::AudioCommandThread::onFirstRef() 656 { 657 if (mName != "") { 658 run(mName.string(), ANDROID_PRIORITY_AUDIO); 659 } else { 660 run("AudioCommand", ANDROID_PRIORITY_AUDIO); 661 } 662 } 663 664 bool AudioPolicyService::AudioCommandThread::threadLoop() 665 { 666 nsecs_t waitTime = INT64_MAX; 667 668 mLock.lock(); 669 while (!exitPending()) 670 { 671 while (!mAudioCommands.isEmpty()) { 672 nsecs_t curTime = systemTime(); 673 // commands are sorted by increasing time stamp: execute them from index 0 and up 674 if (mAudioCommands[0]->mTime <= curTime) { 675 AudioCommand *command = mAudioCommands[0]; 676 mAudioCommands.removeAt(0); 677 mLastCommand = *command; 678 679 switch (command->mCommand) { 680 case START_TONE: { 681 mLock.unlock(); 682 ToneData *data = (ToneData *)command->mParam; 683 ALOGV("AudioCommandThread() processing start tone %d on stream %d", 684 data->mType, data->mStream); 685 delete mpToneGenerator; 686 mpToneGenerator = new ToneGenerator(data->mStream, 1.0); 687 mpToneGenerator->startTone(data->mType); 688 delete data; 689 mLock.lock(); 690 }break; 691 case STOP_TONE: { 692 mLock.unlock(); 693 ALOGV("AudioCommandThread() processing stop tone"); 694 if (mpToneGenerator != NULL) { 695 mpToneGenerator->stopTone(); 696 delete mpToneGenerator; 697 mpToneGenerator = NULL; 698 } 699 mLock.lock(); 700 }break; 701 case SET_VOLUME: { 702 VolumeData *data = (VolumeData *)command->mParam; 703 ALOGV("AudioCommandThread() processing set volume stream %d, \ 704 volume %f, output %d", data->mStream, data->mVolume, data->mIO); 705 command->mStatus = AudioSystem::setStreamVolume(data->mStream, 706 data->mVolume, 707 data->mIO); 708 if (command->mWaitStatus) { 709 command->mCond.signal(); 710 mWaitWorkCV.wait(mLock); 711 } 712 delete data; 713 }break; 714 case SET_PARAMETERS: { 715 ParametersData *data = (ParametersData *)command->mParam; 716 ALOGV("AudioCommandThread() processing set parameters string %s, io %d", 717 data->mKeyValuePairs.string(), data->mIO); 718 command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); 719 if (command->mWaitStatus) { 720 command->mCond.signal(); 721 mWaitWorkCV.wait(mLock); 722 } 723 delete data; 724 }break; 725 case SET_VOICE_VOLUME: { 726 VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; 727 ALOGV("AudioCommandThread() processing set voice volume volume %f", 728 data->mVolume); 729 command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); 730 if (command->mWaitStatus) { 731 command->mCond.signal(); 732 mWaitWorkCV.wait(mLock); 733 } 734 delete data; 735 }break; 736 default: 737 ALOGW("AudioCommandThread() unknown command %d", command->mCommand); 738 } 739 delete command; 740 waitTime = INT64_MAX; 741 } else { 742 waitTime = mAudioCommands[0]->mTime - curTime; 743 break; 744 } 745 } 746 // release delayed commands wake lock 747 if (mName != "" && mAudioCommands.isEmpty()) { 748 release_wake_lock(mName.string()); 749 } 750 ALOGV("AudioCommandThread() going to sleep"); 751 mWaitWorkCV.waitRelative(mLock, waitTime); 752 ALOGV("AudioCommandThread() waking up"); 753 } 754 mLock.unlock(); 755 return false; 756 } 757 758 status_t AudioPolicyService::AudioCommandThread::dump(int fd) 759 { 760 const size_t SIZE = 256; 761 char buffer[SIZE]; 762 String8 result; 763 764 snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); 765 result.append(buffer); 766 write(fd, result.string(), result.size()); 767 768 bool locked = tryLock(mLock); 769 if (!locked) { 770 String8 result2(kCmdDeadlockedString); 771 write(fd, result2.string(), result2.size()); 772 } 773 774 snprintf(buffer, SIZE, "- Commands:\n"); 775 result = String8(buffer); 776 result.append(" Command Time Wait pParam\n"); 777 for (size_t i = 0; i < mAudioCommands.size(); i++) { 778 mAudioCommands[i]->dump(buffer, SIZE); 779 result.append(buffer); 780 } 781 result.append(" Last Command\n"); 782 mLastCommand.dump(buffer, SIZE); 783 result.append(buffer); 784 785 write(fd, result.string(), result.size()); 786 787 if (locked) mLock.unlock(); 788 789 return NO_ERROR; 790 } 791 792 void AudioPolicyService::AudioCommandThread::startToneCommand(ToneGenerator::tone_type type, 793 audio_stream_type_t stream) 794 { 795 AudioCommand *command = new AudioCommand(); 796 command->mCommand = START_TONE; 797 ToneData *data = new ToneData(); 798 data->mType = type; 799 data->mStream = stream; 800 command->mParam = (void *)data; 801 Mutex::Autolock _l(mLock); 802 insertCommand_l(command); 803 ALOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); 804 mWaitWorkCV.signal(); 805 } 806 807 void AudioPolicyService::AudioCommandThread::stopToneCommand() 808 { 809 AudioCommand *command = new AudioCommand(); 810 command->mCommand = STOP_TONE; 811 command->mParam = NULL; 812 Mutex::Autolock _l(mLock); 813 insertCommand_l(command); 814 ALOGV("AudioCommandThread() adding tone stop"); 815 mWaitWorkCV.signal(); 816 } 817 818 status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, 819 float volume, 820 audio_io_handle_t output, 821 int delayMs) 822 { 823 status_t status = NO_ERROR; 824 825 AudioCommand *command = new AudioCommand(); 826 command->mCommand = SET_VOLUME; 827 VolumeData *data = new VolumeData(); 828 data->mStream = stream; 829 data->mVolume = volume; 830 data->mIO = output; 831 command->mParam = data; 832 Mutex::Autolock _l(mLock); 833 insertCommand_l(command, delayMs); 834 ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", 835 stream, volume, output); 836 mWaitWorkCV.signal(); 837 if (command->mWaitStatus) { 838 command->mCond.wait(mLock); 839 status = command->mStatus; 840 mWaitWorkCV.signal(); 841 } 842 return status; 843 } 844 845 status_t AudioPolicyService::AudioCommandThread::parametersCommand(audio_io_handle_t ioHandle, 846 const char *keyValuePairs, 847 int delayMs) 848 { 849 status_t status = NO_ERROR; 850 851 AudioCommand *command = new AudioCommand(); 852 command->mCommand = SET_PARAMETERS; 853 ParametersData *data = new ParametersData(); 854 data->mIO = ioHandle; 855 data->mKeyValuePairs = String8(keyValuePairs); 856 command->mParam = data; 857 Mutex::Autolock _l(mLock); 858 insertCommand_l(command, delayMs); 859 ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", 860 keyValuePairs, ioHandle, delayMs); 861 mWaitWorkCV.signal(); 862 if (command->mWaitStatus) { 863 command->mCond.wait(mLock); 864 status = command->mStatus; 865 mWaitWorkCV.signal(); 866 } 867 return status; 868 } 869 870 status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) 871 { 872 status_t status = NO_ERROR; 873 874 AudioCommand *command = new AudioCommand(); 875 command->mCommand = SET_VOICE_VOLUME; 876 VoiceVolumeData *data = new VoiceVolumeData(); 877 data->mVolume = volume; 878 command->mParam = data; 879 Mutex::Autolock _l(mLock); 880 insertCommand_l(command, delayMs); 881 ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); 882 mWaitWorkCV.signal(); 883 if (command->mWaitStatus) { 884 command->mCond.wait(mLock); 885 status = command->mStatus; 886 mWaitWorkCV.signal(); 887 } 888 return status; 889 } 890 891 // insertCommand_l() must be called with mLock held 892 void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) 893 { 894 ssize_t i; // not size_t because i will count down to -1 895 Vector <AudioCommand *> removedCommands; 896 897 nsecs_t time = 0; 898 command->mTime = systemTime() + milliseconds(delayMs); 899 900 // acquire wake lock to make sure delayed commands are processed 901 if (mName != "" && mAudioCommands.isEmpty()) { 902 acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); 903 } 904 905 // check same pending commands with later time stamps and eliminate them 906 for (i = mAudioCommands.size()-1; i >= 0; i--) { 907 AudioCommand *command2 = mAudioCommands[i]; 908 // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands 909 if (command2->mTime <= command->mTime) break; 910 if (command2->mCommand != command->mCommand) continue; 911 912 switch (command->mCommand) { 913 case SET_PARAMETERS: { 914 ParametersData *data = (ParametersData *)command->mParam; 915 ParametersData *data2 = (ParametersData *)command2->mParam; 916 if (data->mIO != data2->mIO) break; 917 ALOGV("Comparing parameter command %s to new command %s", 918 data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); 919 AudioParameter param = AudioParameter(data->mKeyValuePairs); 920 AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); 921 for (size_t j = 0; j < param.size(); j++) { 922 String8 key; 923 String8 value; 924 param.getAt(j, key, value); 925 for (size_t k = 0; k < param2.size(); k++) { 926 String8 key2; 927 String8 value2; 928 param2.getAt(k, key2, value2); 929 if (key2 == key) { 930 param2.remove(key2); 931 ALOGV("Filtering out parameter %s", key2.string()); 932 break; 933 } 934 } 935 } 936 // if all keys have been filtered out, remove the command. 937 // otherwise, update the key value pairs 938 if (param2.size() == 0) { 939 removedCommands.add(command2); 940 } else { 941 data2->mKeyValuePairs = param2.toString(); 942 } 943 time = command2->mTime; 944 } break; 945 946 case SET_VOLUME: { 947 VolumeData *data = (VolumeData *)command->mParam; 948 VolumeData *data2 = (VolumeData *)command2->mParam; 949 if (data->mIO != data2->mIO) break; 950 if (data->mStream != data2->mStream) break; 951 ALOGV("Filtering out volume command on output %d for stream %d", 952 data->mIO, data->mStream); 953 removedCommands.add(command2); 954 time = command2->mTime; 955 } break; 956 case START_TONE: 957 case STOP_TONE: 958 default: 959 break; 960 } 961 } 962 963 // remove filtered commands 964 for (size_t j = 0; j < removedCommands.size(); j++) { 965 // removed commands always have time stamps greater than current command 966 for (size_t k = i + 1; k < mAudioCommands.size(); k++) { 967 if (mAudioCommands[k] == removedCommands[j]) { 968 ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); 969 mAudioCommands.removeAt(k); 970 break; 971 } 972 } 973 } 974 removedCommands.clear(); 975 976 // wait for status only if delay is 0 and command time was not modified above 977 if (delayMs == 0 && time == 0) { 978 command->mWaitStatus = true; 979 } else { 980 command->mWaitStatus = false; 981 } 982 // update command time if modified above 983 if (time != 0) { 984 command->mTime = time; 985 } 986 987 // insert command at the right place according to its time stamp 988 ALOGV("inserting command: %d at index %d, num commands %d", 989 command->mCommand, (int)i+1, mAudioCommands.size()); 990 mAudioCommands.insertAt(command, i + 1); 991 } 992 993 void AudioPolicyService::AudioCommandThread::exit() 994 { 995 ALOGV("AudioCommandThread::exit"); 996 { 997 AutoMutex _l(mLock); 998 requestExit(); 999 mWaitWorkCV.signal(); 1000 } 1001 requestExitAndWait(); 1002 } 1003 1004 void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) 1005 { 1006 snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", 1007 mCommand, 1008 (int)ns2s(mTime), 1009 (int)ns2ms(mTime)%1000, 1010 mWaitStatus, 1011 mParam); 1012 } 1013 1014 /******* helpers for the service_ops callbacks defined below *********/ 1015 void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, 1016 const char *keyValuePairs, 1017 int delayMs) 1018 { 1019 mAudioCommandThread->parametersCommand(ioHandle, keyValuePairs, 1020 delayMs); 1021 } 1022 1023 int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, 1024 float volume, 1025 audio_io_handle_t output, 1026 int delayMs) 1027 { 1028 return (int)mAudioCommandThread->volumeCommand(stream, volume, 1029 output, delayMs); 1030 } 1031 1032 int AudioPolicyService::startTone(audio_policy_tone_t tone, 1033 audio_stream_type_t stream) 1034 { 1035 if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) 1036 ALOGE("startTone: illegal tone requested (%d)", tone); 1037 if (stream != AUDIO_STREAM_VOICE_CALL) 1038 ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, 1039 tone); 1040 mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, 1041 AUDIO_STREAM_VOICE_CALL); 1042 return 0; 1043 } 1044 1045 int AudioPolicyService::stopTone() 1046 { 1047 mTonePlaybackThread->stopToneCommand(); 1048 return 0; 1049 } 1050 1051 int AudioPolicyService::setVoiceVolume(float volume, int delayMs) 1052 { 1053 return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); 1054 } 1055 1056 // ---------------------------------------------------------------------------- 1057 // Audio pre-processing configuration 1058 // ---------------------------------------------------------------------------- 1059 1060 /*static*/ const char * const AudioPolicyService::kInputSourceNames[AUDIO_SOURCE_CNT -1] = { 1061 MIC_SRC_TAG, 1062 VOICE_UL_SRC_TAG, 1063 VOICE_DL_SRC_TAG, 1064 VOICE_CALL_SRC_TAG, 1065 CAMCORDER_SRC_TAG, 1066 VOICE_REC_SRC_TAG, 1067 VOICE_COMM_SRC_TAG 1068 }; 1069 1070 // returns the audio_source_t enum corresponding to the input source name or 1071 // AUDIO_SOURCE_CNT is no match found 1072 audio_source_t AudioPolicyService::inputSourceNameToEnum(const char *name) 1073 { 1074 int i; 1075 for (i = AUDIO_SOURCE_MIC; i < AUDIO_SOURCE_CNT; i++) { 1076 if (strcmp(name, kInputSourceNames[i - AUDIO_SOURCE_MIC]) == 0) { 1077 ALOGV("inputSourceNameToEnum found source %s %d", name, i); 1078 break; 1079 } 1080 } 1081 return (audio_source_t)i; 1082 } 1083 1084 size_t AudioPolicyService::growParamSize(char *param, 1085 size_t size, 1086 size_t *curSize, 1087 size_t *totSize) 1088 { 1089 // *curSize is at least sizeof(effect_param_t) + 2 * sizeof(int) 1090 size_t pos = ((*curSize - 1 ) / size + 1) * size; 1091 1092 if (pos + size > *totSize) { 1093 while (pos + size > *totSize) { 1094 *totSize += ((*totSize + 7) / 8) * 4; 1095 } 1096 param = (char *)realloc(param, *totSize); 1097 } 1098 *curSize = pos + size; 1099 return pos; 1100 } 1101 1102 size_t AudioPolicyService::readParamValue(cnode *node, 1103 char *param, 1104 size_t *curSize, 1105 size_t *totSize) 1106 { 1107 if (strncmp(node->name, SHORT_TAG, sizeof(SHORT_TAG) + 1) == 0) { 1108 size_t pos = growParamSize(param, sizeof(short), curSize, totSize); 1109 *(short *)((char *)param + pos) = (short)atoi(node->value); 1110 ALOGV("readParamValue() reading short %d", *(short *)((char *)param + pos)); 1111 return sizeof(short); 1112 } else if (strncmp(node->name, INT_TAG, sizeof(INT_TAG) + 1) == 0) { 1113 size_t pos = growParamSize(param, sizeof(int), curSize, totSize); 1114 *(int *)((char *)param + pos) = atoi(node->value); 1115 ALOGV("readParamValue() reading int %d", *(int *)((char *)param + pos)); 1116 return sizeof(int); 1117 } else if (strncmp(node->name, FLOAT_TAG, sizeof(FLOAT_TAG) + 1) == 0) { 1118 size_t pos = growParamSize(param, sizeof(float), curSize, totSize); 1119 *(float *)((char *)param + pos) = (float)atof(node->value); 1120 ALOGV("readParamValue() reading float %f",*(float *)((char *)param + pos)); 1121 return sizeof(float); 1122 } else if (strncmp(node->name, BOOL_TAG, sizeof(BOOL_TAG) + 1) == 0) { 1123 size_t pos = growParamSize(param, sizeof(bool), curSize, totSize); 1124 if (strncmp(node->value, "false", strlen("false") + 1) == 0) { 1125 *(bool *)((char *)param + pos) = false; 1126 } else { 1127 *(bool *)((char *)param + pos) = true; 1128 } 1129 ALOGV("readParamValue() reading bool %s",*(bool *)((char *)param + pos) ? "true" : "false"); 1130 return sizeof(bool); 1131 } else if (strncmp(node->name, STRING_TAG, sizeof(STRING_TAG) + 1) == 0) { 1132 size_t len = strnlen(node->value, EFFECT_STRING_LEN_MAX); 1133 if (*curSize + len + 1 > *totSize) { 1134 *totSize = *curSize + len + 1; 1135 param = (char *)realloc(param, *totSize); 1136 } 1137 strncpy(param + *curSize, node->value, len); 1138 *curSize += len; 1139 param[*curSize] = '\0'; 1140 ALOGV("readParamValue() reading string %s", param + *curSize - len); 1141 return len; 1142 } 1143 ALOGW("readParamValue() unknown param type %s", node->name); 1144 return 0; 1145 } 1146 1147 effect_param_t *AudioPolicyService::loadEffectParameter(cnode *root) 1148 { 1149 cnode *param; 1150 cnode *value; 1151 size_t curSize = sizeof(effect_param_t); 1152 size_t totSize = sizeof(effect_param_t) + 2 * sizeof(int); 1153 effect_param_t *fx_param = (effect_param_t *)malloc(totSize); 1154 1155 param = config_find(root, PARAM_TAG); 1156 value = config_find(root, VALUE_TAG); 1157 if (param == NULL && value == NULL) { 1158 // try to parse simple parameter form {int int} 1159 param = root->first_child; 1160 if (param != NULL) { 1161 // Note: that a pair of random strings is read as 0 0 1162 int *ptr = (int *)fx_param->data; 1163 int *ptr2 = (int *)((char *)param + sizeof(effect_param_t)); 1164 ALOGW("loadEffectParameter() ptr %p ptr2 %p", ptr, ptr2); 1165 *ptr++ = atoi(param->name); 1166 *ptr = atoi(param->value); 1167 fx_param->psize = sizeof(int); 1168 fx_param->vsize = sizeof(int); 1169 return fx_param; 1170 } 1171 } 1172 if (param == NULL || value == NULL) { 1173 ALOGW("loadEffectParameter() invalid parameter description %s", root->name); 1174 goto error; 1175 } 1176 1177 fx_param->psize = 0; 1178 param = param->first_child; 1179 while (param) { 1180 ALOGV("loadEffectParameter() reading param of type %s", param->name); 1181 size_t size = readParamValue(param, (char *)fx_param, &curSize, &totSize); 1182 if (size == 0) { 1183 goto error; 1184 } 1185 fx_param->psize += size; 1186 param = param->next; 1187 } 1188 1189 // align start of value field on 32 bit boundary 1190 curSize = ((curSize - 1 ) / sizeof(int) + 1) * sizeof(int); 1191 1192 fx_param->vsize = 0; 1193 value = value->first_child; 1194 while (value) { 1195 ALOGV("loadEffectParameter() reading value of type %s", value->name); 1196 size_t size = readParamValue(value, (char *)fx_param, &curSize, &totSize); 1197 if (size == 0) { 1198 goto error; 1199 } 1200 fx_param->vsize += size; 1201 value = value->next; 1202 } 1203 1204 return fx_param; 1205 1206 error: 1207 delete fx_param; 1208 return NULL; 1209 } 1210 1211 void AudioPolicyService::loadEffectParameters(cnode *root, Vector <effect_param_t *>& params) 1212 { 1213 cnode *node = root->first_child; 1214 while (node) { 1215 ALOGV("loadEffectParameters() loading param %s", node->name); 1216 effect_param_t *param = loadEffectParameter(node); 1217 if (param == NULL) { 1218 node = node->next; 1219 continue; 1220 } 1221 params.add(param); 1222 node = node->next; 1223 } 1224 } 1225 1226 AudioPolicyService::InputSourceDesc *AudioPolicyService::loadInputSource( 1227 cnode *root, 1228 const Vector <EffectDesc *>& effects) 1229 { 1230 cnode *node = root->first_child; 1231 if (node == NULL) { 1232 ALOGW("loadInputSource() empty element %s", root->name); 1233 return NULL; 1234 } 1235 InputSourceDesc *source = new InputSourceDesc(); 1236 while (node) { 1237 size_t i; 1238 for (i = 0; i < effects.size(); i++) { 1239 if (strncmp(effects[i]->mName, node->name, EFFECT_STRING_LEN_MAX) == 0) { 1240 ALOGV("loadInputSource() found effect %s in list", node->name); 1241 break; 1242 } 1243 } 1244 if (i == effects.size()) { 1245 ALOGV("loadInputSource() effect %s not in list", node->name); 1246 node = node->next; 1247 continue; 1248 } 1249 EffectDesc *effect = new EffectDesc(*effects[i]); // deep copy 1250 loadEffectParameters(node, effect->mParams); 1251 ALOGV("loadInputSource() adding effect %s uuid %08x", effect->mName, effect->mUuid.timeLow); 1252 source->mEffects.add(effect); 1253 node = node->next; 1254 } 1255 if (source->mEffects.size() == 0) { 1256 ALOGW("loadInputSource() no valid effects found in source %s", root->name); 1257 delete source; 1258 return NULL; 1259 } 1260 return source; 1261 } 1262 1263 status_t AudioPolicyService::loadInputSources(cnode *root, const Vector <EffectDesc *>& effects) 1264 { 1265 cnode *node = config_find(root, PREPROCESSING_TAG); 1266 if (node == NULL) { 1267 return -ENOENT; 1268 } 1269 node = node->first_child; 1270 while (node) { 1271 audio_source_t source = inputSourceNameToEnum(node->name); 1272 if (source == AUDIO_SOURCE_CNT) { 1273 ALOGW("loadInputSources() invalid input source %s", node->name); 1274 node = node->next; 1275 continue; 1276 } 1277 ALOGV("loadInputSources() loading input source %s", node->name); 1278 InputSourceDesc *desc = loadInputSource(node, effects); 1279 if (desc == NULL) { 1280 node = node->next; 1281 continue; 1282 } 1283 mInputSources.add(source, desc); 1284 node = node->next; 1285 } 1286 return NO_ERROR; 1287 } 1288 1289 AudioPolicyService::EffectDesc *AudioPolicyService::loadEffect(cnode *root) 1290 { 1291 cnode *node = config_find(root, UUID_TAG); 1292 if (node == NULL) { 1293 return NULL; 1294 } 1295 effect_uuid_t uuid; 1296 if (AudioEffect::stringToGuid(node->value, &uuid) != NO_ERROR) { 1297 ALOGW("loadEffect() invalid uuid %s", node->value); 1298 return NULL; 1299 } 1300 return new EffectDesc(root->name, uuid); 1301 } 1302 1303 status_t AudioPolicyService::loadEffects(cnode *root, Vector <EffectDesc *>& effects) 1304 { 1305 cnode *node = config_find(root, EFFECTS_TAG); 1306 if (node == NULL) { 1307 return -ENOENT; 1308 } 1309 node = node->first_child; 1310 while (node) { 1311 ALOGV("loadEffects() loading effect %s", node->name); 1312 EffectDesc *effect = loadEffect(node); 1313 if (effect == NULL) { 1314 node = node->next; 1315 continue; 1316 } 1317 effects.add(effect); 1318 node = node->next; 1319 } 1320 return NO_ERROR; 1321 } 1322 1323 status_t AudioPolicyService::loadPreProcessorConfig(const char *path) 1324 { 1325 cnode *root; 1326 char *data; 1327 1328 data = (char *)load_file(path, NULL); 1329 if (data == NULL) { 1330 return -ENODEV; 1331 } 1332 root = config_node("", ""); 1333 config_load(root, data); 1334 1335 Vector <EffectDesc *> effects; 1336 loadEffects(root, effects); 1337 loadInputSources(root, effects); 1338 1339 config_free(root); 1340 free(root); 1341 free(data); 1342 1343 return NO_ERROR; 1344 } 1345 1346 /* implementation of the interface to the policy manager */ 1347 extern "C" { 1348 1349 1350 static audio_module_handle_t aps_load_hw_module(void *service, 1351 const char *name) 1352 { 1353 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1354 if (af == 0) { 1355 ALOGW("%s: could not get AudioFlinger", __func__); 1356 return 0; 1357 } 1358 1359 return af->loadHwModule(name); 1360 } 1361 1362 // deprecated: replaced by aps_open_output_on_module() 1363 static audio_io_handle_t aps_open_output(void *service, 1364 audio_devices_t *pDevices, 1365 uint32_t *pSamplingRate, 1366 audio_format_t *pFormat, 1367 audio_channel_mask_t *pChannelMask, 1368 uint32_t *pLatencyMs, 1369 audio_output_flags_t flags) 1370 { 1371 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1372 if (af == 0) { 1373 ALOGW("%s: could not get AudioFlinger", __func__); 1374 return 0; 1375 } 1376 1377 return af->openOutput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask, 1378 pLatencyMs, flags); 1379 } 1380 1381 static audio_io_handle_t aps_open_output_on_module(void *service, 1382 audio_module_handle_t module, 1383 audio_devices_t *pDevices, 1384 uint32_t *pSamplingRate, 1385 audio_format_t *pFormat, 1386 audio_channel_mask_t *pChannelMask, 1387 uint32_t *pLatencyMs, 1388 audio_output_flags_t flags) 1389 { 1390 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1391 if (af == 0) { 1392 ALOGW("%s: could not get AudioFlinger", __func__); 1393 return 0; 1394 } 1395 return af->openOutput(module, pDevices, pSamplingRate, pFormat, pChannelMask, 1396 pLatencyMs, flags); 1397 } 1398 1399 static audio_io_handle_t aps_open_dup_output(void *service, 1400 audio_io_handle_t output1, 1401 audio_io_handle_t output2) 1402 { 1403 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1404 if (af == 0) { 1405 ALOGW("%s: could not get AudioFlinger", __func__); 1406 return 0; 1407 } 1408 return af->openDuplicateOutput(output1, output2); 1409 } 1410 1411 static int aps_close_output(void *service, audio_io_handle_t output) 1412 { 1413 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1414 if (af == 0) 1415 return PERMISSION_DENIED; 1416 1417 return af->closeOutput(output); 1418 } 1419 1420 static int aps_suspend_output(void *service, audio_io_handle_t output) 1421 { 1422 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1423 if (af == 0) { 1424 ALOGW("%s: could not get AudioFlinger", __func__); 1425 return PERMISSION_DENIED; 1426 } 1427 1428 return af->suspendOutput(output); 1429 } 1430 1431 static int aps_restore_output(void *service, audio_io_handle_t output) 1432 { 1433 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1434 if (af == 0) { 1435 ALOGW("%s: could not get AudioFlinger", __func__); 1436 return PERMISSION_DENIED; 1437 } 1438 1439 return af->restoreOutput(output); 1440 } 1441 1442 // deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored 1443 static audio_io_handle_t aps_open_input(void *service, 1444 audio_devices_t *pDevices, 1445 uint32_t *pSamplingRate, 1446 audio_format_t *pFormat, 1447 audio_channel_mask_t *pChannelMask, 1448 audio_in_acoustics_t acoustics) 1449 { 1450 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1451 if (af == 0) { 1452 ALOGW("%s: could not get AudioFlinger", __func__); 1453 return 0; 1454 } 1455 1456 return af->openInput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask); 1457 } 1458 1459 static audio_io_handle_t aps_open_input_on_module(void *service, 1460 audio_module_handle_t module, 1461 audio_devices_t *pDevices, 1462 uint32_t *pSamplingRate, 1463 audio_format_t *pFormat, 1464 audio_channel_mask_t *pChannelMask) 1465 { 1466 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1467 if (af == 0) { 1468 ALOGW("%s: could not get AudioFlinger", __func__); 1469 return 0; 1470 } 1471 1472 return af->openInput(module, pDevices, pSamplingRate, pFormat, pChannelMask); 1473 } 1474 1475 static int aps_close_input(void *service, audio_io_handle_t input) 1476 { 1477 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1478 if (af == 0) 1479 return PERMISSION_DENIED; 1480 1481 return af->closeInput(input); 1482 } 1483 1484 static int aps_set_stream_output(void *service, audio_stream_type_t stream, 1485 audio_io_handle_t output) 1486 { 1487 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1488 if (af == 0) 1489 return PERMISSION_DENIED; 1490 1491 return af->setStreamOutput(stream, output); 1492 } 1493 1494 static int aps_move_effects(void *service, int session, 1495 audio_io_handle_t src_output, 1496 audio_io_handle_t dst_output) 1497 { 1498 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1499 if (af == 0) 1500 return PERMISSION_DENIED; 1501 1502 return af->moveEffects(session, src_output, dst_output); 1503 } 1504 1505 static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, 1506 const char *keys) 1507 { 1508 String8 result = AudioSystem::getParameters(io_handle, String8(keys)); 1509 return strdup(result.string()); 1510 } 1511 1512 static void aps_set_parameters(void *service, audio_io_handle_t io_handle, 1513 const char *kv_pairs, int delay_ms) 1514 { 1515 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1516 1517 audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); 1518 } 1519 1520 static int aps_set_stream_volume(void *service, audio_stream_type_t stream, 1521 float volume, audio_io_handle_t output, 1522 int delay_ms) 1523 { 1524 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1525 1526 return audioPolicyService->setStreamVolume(stream, volume, output, 1527 delay_ms); 1528 } 1529 1530 static int aps_start_tone(void *service, audio_policy_tone_t tone, 1531 audio_stream_type_t stream) 1532 { 1533 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1534 1535 return audioPolicyService->startTone(tone, stream); 1536 } 1537 1538 static int aps_stop_tone(void *service) 1539 { 1540 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1541 1542 return audioPolicyService->stopTone(); 1543 } 1544 1545 static int aps_set_voice_volume(void *service, float volume, int delay_ms) 1546 { 1547 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1548 1549 return audioPolicyService->setVoiceVolume(volume, delay_ms); 1550 } 1551 1552 }; // extern "C" 1553 1554 namespace { 1555 struct audio_policy_service_ops aps_ops = { 1556 open_output : aps_open_output, 1557 open_duplicate_output : aps_open_dup_output, 1558 close_output : aps_close_output, 1559 suspend_output : aps_suspend_output, 1560 restore_output : aps_restore_output, 1561 open_input : aps_open_input, 1562 close_input : aps_close_input, 1563 set_stream_volume : aps_set_stream_volume, 1564 set_stream_output : aps_set_stream_output, 1565 set_parameters : aps_set_parameters, 1566 get_parameters : aps_get_parameters, 1567 start_tone : aps_start_tone, 1568 stop_tone : aps_stop_tone, 1569 set_voice_volume : aps_set_voice_volume, 1570 move_effects : aps_move_effects, 1571 load_hw_module : aps_load_hw_module, 1572 open_output_on_module : aps_open_output_on_module, 1573 open_input_on_module : aps_open_input_on_module, 1574 }; 1575 }; // namespace <unnamed> 1576 1577 }; // namespace android 1578
