AudioPolicyService.cpp revision 254af180475346b6186b49c297f340c9c4817511
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 44namespace android { 45 46static const char kDeadlockedString[] = "AudioPolicyService may be deadlocked\n"; 47static const char kCmdDeadlockedString[] = "AudioPolicyService command thread may be deadlocked\n"; 48 49static const int kDumpLockRetries = 50; 50static const int kDumpLockSleepUs = 20000; 51 52namespace { 53 extern struct audio_policy_service_ops aps_ops; 54}; 55 56// ---------------------------------------------------------------------------- 57 58AudioPolicyService::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 property_get("ro.camera.sound.forced", value, "0"); 95 forced_val = strtol(value, NULL, 0); 96 mpAudioPolicy->set_can_mute_enforced_audible(mpAudioPolicy, !forced_val); 97 98 ALOGI("Loaded audio policy from %s (%s)", module->name, module->id); 99 100 // load audio pre processing modules 101 if (access(AUDIO_EFFECT_VENDOR_CONFIG_FILE, R_OK) == 0) { 102 loadPreProcessorConfig(AUDIO_EFFECT_VENDOR_CONFIG_FILE); 103 } else if (access(AUDIO_EFFECT_DEFAULT_CONFIG_FILE, R_OK) == 0) { 104 loadPreProcessorConfig(AUDIO_EFFECT_DEFAULT_CONFIG_FILE); 105 } 106} 107 108AudioPolicyService::~AudioPolicyService() 109{ 110 mTonePlaybackThread->exit(); 111 mTonePlaybackThread.clear(); 112 mAudioCommandThread->exit(); 113 mAudioCommandThread.clear(); 114 115 116 // release audio pre processing resources 117 for (size_t i = 0; i < mInputSources.size(); i++) { 118 delete mInputSources.valueAt(i); 119 } 120 mInputSources.clear(); 121 122 for (size_t i = 0; i < mInputs.size(); i++) { 123 mInputs.valueAt(i)->mEffects.clear(); 124 delete mInputs.valueAt(i); 125 } 126 mInputs.clear(); 127 128 if (mpAudioPolicy != NULL && mpAudioPolicyDev != NULL) 129 mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy); 130 if (mpAudioPolicyDev != NULL) 131 audio_policy_dev_close(mpAudioPolicyDev); 132} 133 134status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device, 135 audio_policy_dev_state_t state, 136 const char *device_address) 137{ 138 if (mpAudioPolicy == NULL) { 139 return NO_INIT; 140 } 141 if (!settingsAllowed()) { 142 return PERMISSION_DENIED; 143 } 144 if (!audio_is_output_device(device) && !audio_is_input_device(device)) { 145 return BAD_VALUE; 146 } 147 if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE && 148 state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 149 return BAD_VALUE; 150 } 151 152 ALOGV("setDeviceConnectionState() tid %d", gettid()); 153 Mutex::Autolock _l(mLock); 154 return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device, 155 state, device_address); 156} 157 158audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState( 159 audio_devices_t device, 160 const char *device_address) 161{ 162 if (mpAudioPolicy == NULL) { 163 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 164 } 165 return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device, 166 device_address); 167} 168 169status_t AudioPolicyService::setPhoneState(audio_mode_t state) 170{ 171 if (mpAudioPolicy == NULL) { 172 return NO_INIT; 173 } 174 if (!settingsAllowed()) { 175 return PERMISSION_DENIED; 176 } 177 if (uint32_t(state) >= AUDIO_MODE_CNT) { 178 return BAD_VALUE; 179 } 180 181 ALOGV("setPhoneState() tid %d", gettid()); 182 183 // TODO: check if it is more appropriate to do it in platform specific policy manager 184 AudioSystem::setMode(state); 185 186 Mutex::Autolock _l(mLock); 187 mpAudioPolicy->set_phone_state(mpAudioPolicy, state); 188 return NO_ERROR; 189} 190 191status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage, 192 audio_policy_forced_cfg_t config) 193{ 194 if (mpAudioPolicy == NULL) { 195 return NO_INIT; 196 } 197 if (!settingsAllowed()) { 198 return PERMISSION_DENIED; 199 } 200 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 201 return BAD_VALUE; 202 } 203 if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) { 204 return BAD_VALUE; 205 } 206 ALOGV("setForceUse() tid %d", gettid()); 207 Mutex::Autolock _l(mLock); 208 mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config); 209 return NO_ERROR; 210} 211 212audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage) 213{ 214 if (mpAudioPolicy == NULL) { 215 return AUDIO_POLICY_FORCE_NONE; 216 } 217 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 218 return AUDIO_POLICY_FORCE_NONE; 219 } 220 return mpAudioPolicy->get_force_use(mpAudioPolicy, usage); 221} 222 223audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream, 224 uint32_t samplingRate, 225 audio_format_t format, 226 audio_channel_mask_t channelMask, 227 audio_output_flags_t flags) 228{ 229 if (mpAudioPolicy == NULL) { 230 return 0; 231 } 232 ALOGV("getOutput() tid %d", gettid()); 233 Mutex::Autolock _l(mLock); 234 return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channelMask, flags); 235} 236 237status_t AudioPolicyService::startOutput(audio_io_handle_t output, 238 audio_stream_type_t stream, 239 int session) 240{ 241 if (mpAudioPolicy == NULL) { 242 return NO_INIT; 243 } 244 ALOGV("startOutput() tid %d", gettid()); 245 Mutex::Autolock _l(mLock); 246 return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); 247} 248 249status_t AudioPolicyService::stopOutput(audio_io_handle_t output, 250 audio_stream_type_t stream, 251 int session) 252{ 253 if (mpAudioPolicy == NULL) { 254 return NO_INIT; 255 } 256 ALOGV("stopOutput() tid %d", gettid()); 257 Mutex::Autolock _l(mLock); 258 return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); 259} 260 261void AudioPolicyService::releaseOutput(audio_io_handle_t output) 262{ 263 if (mpAudioPolicy == NULL) { 264 return; 265 } 266 ALOGV("releaseOutput() tid %d", gettid()); 267 Mutex::Autolock _l(mLock); 268 mpAudioPolicy->release_output(mpAudioPolicy, output); 269} 270 271audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource, 272 uint32_t samplingRate, 273 audio_format_t format, 274 audio_channel_mask_t channelMask, 275 int audioSession) 276{ 277 if (mpAudioPolicy == NULL) { 278 return 0; 279 } 280 // already checked by client, but double-check in case the client wrapper is bypassed 281 if (uint32_t(inputSource) >= AUDIO_SOURCE_CNT) { 282 return 0; 283 } 284 Mutex::Autolock _l(mLock); 285 // the audio_in_acoustics_t parameter is ignored by get_input() 286 audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, 287 format, channelMask, (audio_in_acoustics_t) 0); 288 289 if (input == 0) { 290 return input; 291 } 292 // create audio pre processors according to input source 293 ssize_t index = mInputSources.indexOfKey(inputSource); 294 if (index < 0) { 295 return input; 296 } 297 ssize_t idx = mInputs.indexOfKey(input); 298 InputDesc *inputDesc; 299 if (idx < 0) { 300 inputDesc = new InputDesc(audioSession); 301 mInputs.add(input, inputDesc); 302 } else { 303 inputDesc = mInputs.valueAt(idx); 304 } 305 306 Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects; 307 for (size_t i = 0; i < effects.size(); i++) { 308 EffectDesc *effect = effects[i]; 309 sp<AudioEffect> fx = new AudioEffect(NULL, &effect->mUuid, -1, 0, 0, audioSession, input); 310 status_t status = fx->initCheck(); 311 if (status != NO_ERROR && status != ALREADY_EXISTS) { 312 ALOGW("Failed to create Fx %s on input %d", effect->mName, input); 313 // fx goes out of scope and strong ref on AudioEffect is released 314 continue; 315 } 316 for (size_t j = 0; j < effect->mParams.size(); j++) { 317 fx->setParameter(effect->mParams[j]); 318 } 319 inputDesc->mEffects.add(fx); 320 } 321 setPreProcessorEnabled(inputDesc, true); 322 return input; 323} 324 325status_t AudioPolicyService::startInput(audio_io_handle_t input) 326{ 327 if (mpAudioPolicy == NULL) { 328 return NO_INIT; 329 } 330 Mutex::Autolock _l(mLock); 331 332 return mpAudioPolicy->start_input(mpAudioPolicy, input); 333} 334 335status_t AudioPolicyService::stopInput(audio_io_handle_t input) 336{ 337 if (mpAudioPolicy == NULL) { 338 return NO_INIT; 339 } 340 Mutex::Autolock _l(mLock); 341 342 return mpAudioPolicy->stop_input(mpAudioPolicy, input); 343} 344 345void AudioPolicyService::releaseInput(audio_io_handle_t input) 346{ 347 if (mpAudioPolicy == NULL) { 348 return; 349 } 350 Mutex::Autolock _l(mLock); 351 mpAudioPolicy->release_input(mpAudioPolicy, input); 352 353 ssize_t index = mInputs.indexOfKey(input); 354 if (index < 0) { 355 return; 356 } 357 InputDesc *inputDesc = mInputs.valueAt(index); 358 setPreProcessorEnabled(inputDesc, false); 359 delete inputDesc; 360 mInputs.removeItemsAt(index); 361} 362 363status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, 364 int indexMin, 365 int indexMax) 366{ 367 if (mpAudioPolicy == NULL) { 368 return NO_INIT; 369 } 370 if (!settingsAllowed()) { 371 return PERMISSION_DENIED; 372 } 373 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 374 return BAD_VALUE; 375 } 376 Mutex::Autolock _l(mLock); 377 mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax); 378 return NO_ERROR; 379} 380 381status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream, 382 int index, 383 audio_devices_t device) 384{ 385 if (mpAudioPolicy == NULL) { 386 return NO_INIT; 387 } 388 if (!settingsAllowed()) { 389 return PERMISSION_DENIED; 390 } 391 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 392 return BAD_VALUE; 393 } 394 Mutex::Autolock _l(mLock); 395 if (mpAudioPolicy->set_stream_volume_index_for_device) { 396 return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy, 397 stream, 398 index, 399 device); 400 } else { 401 return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index); 402 } 403} 404 405status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream, 406 int *index, 407 audio_devices_t device) 408{ 409 if (mpAudioPolicy == NULL) { 410 return NO_INIT; 411 } 412 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 413 return BAD_VALUE; 414 } 415 Mutex::Autolock _l(mLock); 416 if (mpAudioPolicy->get_stream_volume_index_for_device) { 417 return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy, 418 stream, 419 index, 420 device); 421 } else { 422 return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); 423 } 424} 425 426uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) 427{ 428 if (mpAudioPolicy == NULL) { 429 return 0; 430 } 431 return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); 432} 433 434//audio policy: use audio_device_t appropriately 435 436audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) 437{ 438 if (mpAudioPolicy == NULL) { 439 return (audio_devices_t)0; 440 } 441 return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); 442} 443 444audio_io_handle_t AudioPolicyService::getOutputForEffect(effect_descriptor_t *desc) 445{ 446 if (mpAudioPolicy == NULL) { 447 return NO_INIT; 448 } 449 Mutex::Autolock _l(mLock); 450 return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); 451} 452 453status_t AudioPolicyService::registerEffect(effect_descriptor_t *desc, 454 audio_io_handle_t io, 455 uint32_t strategy, 456 int session, 457 int id) 458{ 459 if (mpAudioPolicy == NULL) { 460 return NO_INIT; 461 } 462 return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id); 463} 464 465status_t AudioPolicyService::unregisterEffect(int id) 466{ 467 if (mpAudioPolicy == NULL) { 468 return NO_INIT; 469 } 470 return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); 471} 472 473status_t AudioPolicyService::setEffectEnabled(int id, bool enabled) 474{ 475 if (mpAudioPolicy == NULL) { 476 return NO_INIT; 477 } 478 return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled); 479} 480 481bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 482{ 483 if (mpAudioPolicy == NULL) { 484 return 0; 485 } 486 Mutex::Autolock _l(mLock); 487 return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); 488} 489 490status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession, 491 effect_descriptor_t *descriptors, 492 uint32_t *count) 493{ 494 495 if (mpAudioPolicy == NULL) { 496 *count = 0; 497 return NO_INIT; 498 } 499 Mutex::Autolock _l(mLock); 500 status_t status = NO_ERROR; 501 502 size_t index; 503 for (index = 0; index < mInputs.size(); index++) { 504 if (mInputs.valueAt(index)->mSessionId == audioSession) { 505 break; 506 } 507 } 508 if (index == mInputs.size()) { 509 *count = 0; 510 return BAD_VALUE; 511 } 512 Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects; 513 514 for (size_t i = 0; i < effects.size(); i++) { 515 effect_descriptor_t desc = effects[i]->descriptor(); 516 if (i < *count) { 517 memcpy(descriptors + i, &desc, sizeof(effect_descriptor_t)); 518 } 519 } 520 if (effects.size() > *count) { 521 status = NO_MEMORY; 522 } 523 *count = effects.size(); 524 return status; 525} 526 527void AudioPolicyService::binderDied(const wp<IBinder>& who) { 528 ALOGW("binderDied() %p, tid %d, calling pid %d", who.unsafe_get(), gettid(), 529 IPCThreadState::self()->getCallingPid()); 530} 531 532static bool tryLock(Mutex& mutex) 533{ 534 bool locked = false; 535 for (int i = 0; i < kDumpLockRetries; ++i) { 536 if (mutex.tryLock() == NO_ERROR) { 537 locked = true; 538 break; 539 } 540 usleep(kDumpLockSleepUs); 541 } 542 return locked; 543} 544 545status_t AudioPolicyService::dumpInternals(int fd) 546{ 547 const size_t SIZE = 256; 548 char buffer[SIZE]; 549 String8 result; 550 551 snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); 552 result.append(buffer); 553 snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); 554 result.append(buffer); 555 snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); 556 result.append(buffer); 557 558 write(fd, result.string(), result.size()); 559 return NO_ERROR; 560} 561 562status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) 563{ 564 if (!dumpAllowed()) { 565 dumpPermissionDenial(fd); 566 } else { 567 bool locked = tryLock(mLock); 568 if (!locked) { 569 String8 result(kDeadlockedString); 570 write(fd, result.string(), result.size()); 571 } 572 573 dumpInternals(fd); 574 if (mAudioCommandThread != 0) { 575 mAudioCommandThread->dump(fd); 576 } 577 if (mTonePlaybackThread != 0) { 578 mTonePlaybackThread->dump(fd); 579 } 580 581 if (mpAudioPolicy) { 582 mpAudioPolicy->dump(mpAudioPolicy, fd); 583 } 584 585 if (locked) mLock.unlock(); 586 } 587 return NO_ERROR; 588} 589 590status_t AudioPolicyService::dumpPermissionDenial(int fd) 591{ 592 const size_t SIZE = 256; 593 char buffer[SIZE]; 594 String8 result; 595 snprintf(buffer, SIZE, "Permission Denial: " 596 "can't dump AudioPolicyService from pid=%d, uid=%d\n", 597 IPCThreadState::self()->getCallingPid(), 598 IPCThreadState::self()->getCallingUid()); 599 result.append(buffer); 600 write(fd, result.string(), result.size()); 601 return NO_ERROR; 602} 603 604void AudioPolicyService::setPreProcessorEnabled(const InputDesc *inputDesc, bool enabled) 605{ 606 const Vector<sp<AudioEffect> > &fxVector = inputDesc->mEffects; 607 for (size_t i = 0; i < fxVector.size(); i++) { 608 fxVector.itemAt(i)->setEnabled(enabled); 609 } 610} 611 612status_t AudioPolicyService::onTransact( 613 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 614{ 615 return BnAudioPolicyService::onTransact(code, data, reply, flags); 616} 617 618 619// ----------- AudioPolicyService::AudioCommandThread implementation ---------- 620 621AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name) 622 : Thread(false), mName(name) 623{ 624 mpToneGenerator = NULL; 625} 626 627 628AudioPolicyService::AudioCommandThread::~AudioCommandThread() 629{ 630 if (mName != "" && !mAudioCommands.isEmpty()) { 631 release_wake_lock(mName.string()); 632 } 633 mAudioCommands.clear(); 634 delete mpToneGenerator; 635} 636 637void AudioPolicyService::AudioCommandThread::onFirstRef() 638{ 639 if (mName != "") { 640 run(mName.string(), ANDROID_PRIORITY_AUDIO); 641 } else { 642 run("AudioCommand", ANDROID_PRIORITY_AUDIO); 643 } 644} 645 646bool AudioPolicyService::AudioCommandThread::threadLoop() 647{ 648 nsecs_t waitTime = INT64_MAX; 649 650 mLock.lock(); 651 while (!exitPending()) 652 { 653 while (!mAudioCommands.isEmpty()) { 654 nsecs_t curTime = systemTime(); 655 // commands are sorted by increasing time stamp: execute them from index 0 and up 656 if (mAudioCommands[0]->mTime <= curTime) { 657 AudioCommand *command = mAudioCommands[0]; 658 mAudioCommands.removeAt(0); 659 mLastCommand = *command; 660 661 switch (command->mCommand) { 662 case START_TONE: { 663 mLock.unlock(); 664 ToneData *data = (ToneData *)command->mParam; 665 ALOGV("AudioCommandThread() processing start tone %d on stream %d", 666 data->mType, data->mStream); 667 delete mpToneGenerator; 668 mpToneGenerator = new ToneGenerator(data->mStream, 1.0); 669 mpToneGenerator->startTone(data->mType); 670 delete data; 671 mLock.lock(); 672 }break; 673 case STOP_TONE: { 674 mLock.unlock(); 675 ALOGV("AudioCommandThread() processing stop tone"); 676 if (mpToneGenerator != NULL) { 677 mpToneGenerator->stopTone(); 678 delete mpToneGenerator; 679 mpToneGenerator = NULL; 680 } 681 mLock.lock(); 682 }break; 683 case SET_VOLUME: { 684 VolumeData *data = (VolumeData *)command->mParam; 685 ALOGV("AudioCommandThread() processing set volume stream %d, \ 686 volume %f, output %d", data->mStream, data->mVolume, data->mIO); 687 command->mStatus = AudioSystem::setStreamVolume(data->mStream, 688 data->mVolume, 689 data->mIO); 690 if (command->mWaitStatus) { 691 command->mCond.signal(); 692 mWaitWorkCV.wait(mLock); 693 } 694 delete data; 695 }break; 696 case SET_PARAMETERS: { 697 ParametersData *data = (ParametersData *)command->mParam; 698 ALOGV("AudioCommandThread() processing set parameters string %s, io %d", 699 data->mKeyValuePairs.string(), data->mIO); 700 command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); 701 if (command->mWaitStatus) { 702 command->mCond.signal(); 703 mWaitWorkCV.wait(mLock); 704 } 705 delete data; 706 }break; 707 case SET_VOICE_VOLUME: { 708 VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; 709 ALOGV("AudioCommandThread() processing set voice volume volume %f", 710 data->mVolume); 711 command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); 712 if (command->mWaitStatus) { 713 command->mCond.signal(); 714 mWaitWorkCV.wait(mLock); 715 } 716 delete data; 717 }break; 718 default: 719 ALOGW("AudioCommandThread() unknown command %d", command->mCommand); 720 } 721 delete command; 722 waitTime = INT64_MAX; 723 } else { 724 waitTime = mAudioCommands[0]->mTime - curTime; 725 break; 726 } 727 } 728 // release delayed commands wake lock 729 if (mName != "" && mAudioCommands.isEmpty()) { 730 release_wake_lock(mName.string()); 731 } 732 ALOGV("AudioCommandThread() going to sleep"); 733 mWaitWorkCV.waitRelative(mLock, waitTime); 734 ALOGV("AudioCommandThread() waking up"); 735 } 736 mLock.unlock(); 737 return false; 738} 739 740status_t AudioPolicyService::AudioCommandThread::dump(int fd) 741{ 742 const size_t SIZE = 256; 743 char buffer[SIZE]; 744 String8 result; 745 746 snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); 747 result.append(buffer); 748 write(fd, result.string(), result.size()); 749 750 bool locked = tryLock(mLock); 751 if (!locked) { 752 String8 result2(kCmdDeadlockedString); 753 write(fd, result2.string(), result2.size()); 754 } 755 756 snprintf(buffer, SIZE, "- Commands:\n"); 757 result = String8(buffer); 758 result.append(" Command Time Wait pParam\n"); 759 for (size_t i = 0; i < mAudioCommands.size(); i++) { 760 mAudioCommands[i]->dump(buffer, SIZE); 761 result.append(buffer); 762 } 763 result.append(" Last Command\n"); 764 mLastCommand.dump(buffer, SIZE); 765 result.append(buffer); 766 767 write(fd, result.string(), result.size()); 768 769 if (locked) mLock.unlock(); 770 771 return NO_ERROR; 772} 773 774void AudioPolicyService::AudioCommandThread::startToneCommand(ToneGenerator::tone_type type, 775 audio_stream_type_t stream) 776{ 777 AudioCommand *command = new AudioCommand(); 778 command->mCommand = START_TONE; 779 ToneData *data = new ToneData(); 780 data->mType = type; 781 data->mStream = stream; 782 command->mParam = (void *)data; 783 Mutex::Autolock _l(mLock); 784 insertCommand_l(command); 785 ALOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); 786 mWaitWorkCV.signal(); 787} 788 789void AudioPolicyService::AudioCommandThread::stopToneCommand() 790{ 791 AudioCommand *command = new AudioCommand(); 792 command->mCommand = STOP_TONE; 793 command->mParam = NULL; 794 Mutex::Autolock _l(mLock); 795 insertCommand_l(command); 796 ALOGV("AudioCommandThread() adding tone stop"); 797 mWaitWorkCV.signal(); 798} 799 800status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, 801 float volume, 802 audio_io_handle_t output, 803 int delayMs) 804{ 805 status_t status = NO_ERROR; 806 807 AudioCommand *command = new AudioCommand(); 808 command->mCommand = SET_VOLUME; 809 VolumeData *data = new VolumeData(); 810 data->mStream = stream; 811 data->mVolume = volume; 812 data->mIO = output; 813 command->mParam = data; 814 Mutex::Autolock _l(mLock); 815 insertCommand_l(command, delayMs); 816 ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", 817 stream, volume, output); 818 mWaitWorkCV.signal(); 819 if (command->mWaitStatus) { 820 command->mCond.wait(mLock); 821 status = command->mStatus; 822 mWaitWorkCV.signal(); 823 } 824 return status; 825} 826 827status_t AudioPolicyService::AudioCommandThread::parametersCommand(audio_io_handle_t ioHandle, 828 const char *keyValuePairs, 829 int delayMs) 830{ 831 status_t status = NO_ERROR; 832 833 AudioCommand *command = new AudioCommand(); 834 command->mCommand = SET_PARAMETERS; 835 ParametersData *data = new ParametersData(); 836 data->mIO = ioHandle; 837 data->mKeyValuePairs = String8(keyValuePairs); 838 command->mParam = data; 839 Mutex::Autolock _l(mLock); 840 insertCommand_l(command, delayMs); 841 ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", 842 keyValuePairs, ioHandle, delayMs); 843 mWaitWorkCV.signal(); 844 if (command->mWaitStatus) { 845 command->mCond.wait(mLock); 846 status = command->mStatus; 847 mWaitWorkCV.signal(); 848 } 849 return status; 850} 851 852status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) 853{ 854 status_t status = NO_ERROR; 855 856 AudioCommand *command = new AudioCommand(); 857 command->mCommand = SET_VOICE_VOLUME; 858 VoiceVolumeData *data = new VoiceVolumeData(); 859 data->mVolume = volume; 860 command->mParam = data; 861 Mutex::Autolock _l(mLock); 862 insertCommand_l(command, delayMs); 863 ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); 864 mWaitWorkCV.signal(); 865 if (command->mWaitStatus) { 866 command->mCond.wait(mLock); 867 status = command->mStatus; 868 mWaitWorkCV.signal(); 869 } 870 return status; 871} 872 873// insertCommand_l() must be called with mLock held 874void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) 875{ 876 ssize_t i; // not size_t because i will count down to -1 877 Vector <AudioCommand *> removedCommands; 878 879 nsecs_t time = 0; 880 command->mTime = systemTime() + milliseconds(delayMs); 881 882 // acquire wake lock to make sure delayed commands are processed 883 if (mName != "" && mAudioCommands.isEmpty()) { 884 acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); 885 } 886 887 // check same pending commands with later time stamps and eliminate them 888 for (i = mAudioCommands.size()-1; i >= 0; i--) { 889 AudioCommand *command2 = mAudioCommands[i]; 890 // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands 891 if (command2->mTime <= command->mTime) break; 892 if (command2->mCommand != command->mCommand) continue; 893 894 switch (command->mCommand) { 895 case SET_PARAMETERS: { 896 ParametersData *data = (ParametersData *)command->mParam; 897 ParametersData *data2 = (ParametersData *)command2->mParam; 898 if (data->mIO != data2->mIO) break; 899 ALOGV("Comparing parameter command %s to new command %s", 900 data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); 901 AudioParameter param = AudioParameter(data->mKeyValuePairs); 902 AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); 903 for (size_t j = 0; j < param.size(); j++) { 904 String8 key; 905 String8 value; 906 param.getAt(j, key, value); 907 for (size_t k = 0; k < param2.size(); k++) { 908 String8 key2; 909 String8 value2; 910 param2.getAt(k, key2, value2); 911 if (key2 == key) { 912 param2.remove(key2); 913 ALOGV("Filtering out parameter %s", key2.string()); 914 break; 915 } 916 } 917 } 918 // if all keys have been filtered out, remove the command. 919 // otherwise, update the key value pairs 920 if (param2.size() == 0) { 921 removedCommands.add(command2); 922 } else { 923 data2->mKeyValuePairs = param2.toString(); 924 } 925 time = command2->mTime; 926 } break; 927 928 case SET_VOLUME: { 929 VolumeData *data = (VolumeData *)command->mParam; 930 VolumeData *data2 = (VolumeData *)command2->mParam; 931 if (data->mIO != data2->mIO) break; 932 if (data->mStream != data2->mStream) break; 933 ALOGV("Filtering out volume command on output %d for stream %d", 934 data->mIO, data->mStream); 935 removedCommands.add(command2); 936 time = command2->mTime; 937 } break; 938 case START_TONE: 939 case STOP_TONE: 940 default: 941 break; 942 } 943 } 944 945 // remove filtered commands 946 for (size_t j = 0; j < removedCommands.size(); j++) { 947 // removed commands always have time stamps greater than current command 948 for (size_t k = i + 1; k < mAudioCommands.size(); k++) { 949 if (mAudioCommands[k] == removedCommands[j]) { 950 ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); 951 mAudioCommands.removeAt(k); 952 break; 953 } 954 } 955 } 956 removedCommands.clear(); 957 958 // wait for status only if delay is 0 and command time was not modified above 959 if (delayMs == 0 && time == 0) { 960 command->mWaitStatus = true; 961 } else { 962 command->mWaitStatus = false; 963 } 964 // update command time if modified above 965 if (time != 0) { 966 command->mTime = time; 967 } 968 969 // insert command at the right place according to its time stamp 970 ALOGV("inserting command: %d at index %d, num commands %d", 971 command->mCommand, (int)i+1, mAudioCommands.size()); 972 mAudioCommands.insertAt(command, i + 1); 973} 974 975void AudioPolicyService::AudioCommandThread::exit() 976{ 977 ALOGV("AudioCommandThread::exit"); 978 { 979 AutoMutex _l(mLock); 980 requestExit(); 981 mWaitWorkCV.signal(); 982 } 983 requestExitAndWait(); 984} 985 986void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) 987{ 988 snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", 989 mCommand, 990 (int)ns2s(mTime), 991 (int)ns2ms(mTime)%1000, 992 mWaitStatus, 993 mParam); 994} 995 996/******* helpers for the service_ops callbacks defined below *********/ 997void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, 998 const char *keyValuePairs, 999 int delayMs) 1000{ 1001 mAudioCommandThread->parametersCommand(ioHandle, keyValuePairs, 1002 delayMs); 1003} 1004 1005int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, 1006 float volume, 1007 audio_io_handle_t output, 1008 int delayMs) 1009{ 1010 return (int)mAudioCommandThread->volumeCommand(stream, volume, 1011 output, delayMs); 1012} 1013 1014int AudioPolicyService::startTone(audio_policy_tone_t tone, 1015 audio_stream_type_t stream) 1016{ 1017 if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) 1018 ALOGE("startTone: illegal tone requested (%d)", tone); 1019 if (stream != AUDIO_STREAM_VOICE_CALL) 1020 ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, 1021 tone); 1022 mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, 1023 AUDIO_STREAM_VOICE_CALL); 1024 return 0; 1025} 1026 1027int AudioPolicyService::stopTone() 1028{ 1029 mTonePlaybackThread->stopToneCommand(); 1030 return 0; 1031} 1032 1033int AudioPolicyService::setVoiceVolume(float volume, int delayMs) 1034{ 1035 return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); 1036} 1037 1038// ---------------------------------------------------------------------------- 1039// Audio pre-processing configuration 1040// ---------------------------------------------------------------------------- 1041 1042/*static*/ const char * const AudioPolicyService::kInputSourceNames[AUDIO_SOURCE_CNT -1] = { 1043 MIC_SRC_TAG, 1044 VOICE_UL_SRC_TAG, 1045 VOICE_DL_SRC_TAG, 1046 VOICE_CALL_SRC_TAG, 1047 CAMCORDER_SRC_TAG, 1048 VOICE_REC_SRC_TAG, 1049 VOICE_COMM_SRC_TAG 1050}; 1051 1052// returns the audio_source_t enum corresponding to the input source name or 1053// AUDIO_SOURCE_CNT is no match found 1054audio_source_t AudioPolicyService::inputSourceNameToEnum(const char *name) 1055{ 1056 int i; 1057 for (i = AUDIO_SOURCE_MIC; i < AUDIO_SOURCE_CNT; i++) { 1058 if (strcmp(name, kInputSourceNames[i - AUDIO_SOURCE_MIC]) == 0) { 1059 ALOGV("inputSourceNameToEnum found source %s %d", name, i); 1060 break; 1061 } 1062 } 1063 return (audio_source_t)i; 1064} 1065 1066size_t AudioPolicyService::growParamSize(char *param, 1067 size_t size, 1068 size_t *curSize, 1069 size_t *totSize) 1070{ 1071 // *curSize is at least sizeof(effect_param_t) + 2 * sizeof(int) 1072 size_t pos = ((*curSize - 1 ) / size + 1) * size; 1073 1074 if (pos + size > *totSize) { 1075 while (pos + size > *totSize) { 1076 *totSize += ((*totSize + 7) / 8) * 4; 1077 } 1078 param = (char *)realloc(param, *totSize); 1079 } 1080 *curSize = pos + size; 1081 return pos; 1082} 1083 1084size_t AudioPolicyService::readParamValue(cnode *node, 1085 char *param, 1086 size_t *curSize, 1087 size_t *totSize) 1088{ 1089 if (strncmp(node->name, SHORT_TAG, sizeof(SHORT_TAG) + 1) == 0) { 1090 size_t pos = growParamSize(param, sizeof(short), curSize, totSize); 1091 *(short *)((char *)param + pos) = (short)atoi(node->value); 1092 ALOGV("readParamValue() reading short %d", *(short *)((char *)param + pos)); 1093 return sizeof(short); 1094 } else if (strncmp(node->name, INT_TAG, sizeof(INT_TAG) + 1) == 0) { 1095 size_t pos = growParamSize(param, sizeof(int), curSize, totSize); 1096 *(int *)((char *)param + pos) = atoi(node->value); 1097 ALOGV("readParamValue() reading int %d", *(int *)((char *)param + pos)); 1098 return sizeof(int); 1099 } else if (strncmp(node->name, FLOAT_TAG, sizeof(FLOAT_TAG) + 1) == 0) { 1100 size_t pos = growParamSize(param, sizeof(float), curSize, totSize); 1101 *(float *)((char *)param + pos) = (float)atof(node->value); 1102 ALOGV("readParamValue() reading float %f",*(float *)((char *)param + pos)); 1103 return sizeof(float); 1104 } else if (strncmp(node->name, BOOL_TAG, sizeof(BOOL_TAG) + 1) == 0) { 1105 size_t pos = growParamSize(param, sizeof(bool), curSize, totSize); 1106 if (strncmp(node->value, "false", strlen("false") + 1) == 0) { 1107 *(bool *)((char *)param + pos) = false; 1108 } else { 1109 *(bool *)((char *)param + pos) = true; 1110 } 1111 ALOGV("readParamValue() reading bool %s",*(bool *)((char *)param + pos) ? "true" : "false"); 1112 return sizeof(bool); 1113 } else if (strncmp(node->name, STRING_TAG, sizeof(STRING_TAG) + 1) == 0) { 1114 size_t len = strnlen(node->value, EFFECT_STRING_LEN_MAX); 1115 if (*curSize + len + 1 > *totSize) { 1116 *totSize = *curSize + len + 1; 1117 param = (char *)realloc(param, *totSize); 1118 } 1119 strncpy(param + *curSize, node->value, len); 1120 *curSize += len; 1121 param[*curSize] = '\0'; 1122 ALOGV("readParamValue() reading string %s", param + *curSize - len); 1123 return len; 1124 } 1125 ALOGW("readParamValue() unknown param type %s", node->name); 1126 return 0; 1127} 1128 1129effect_param_t *AudioPolicyService::loadEffectParameter(cnode *root) 1130{ 1131 cnode *param; 1132 cnode *value; 1133 size_t curSize = sizeof(effect_param_t); 1134 size_t totSize = sizeof(effect_param_t) + 2 * sizeof(int); 1135 effect_param_t *fx_param = (effect_param_t *)malloc(totSize); 1136 1137 param = config_find(root, PARAM_TAG); 1138 value = config_find(root, VALUE_TAG); 1139 if (param == NULL && value == NULL) { 1140 // try to parse simple parameter form {int int} 1141 param = root->first_child; 1142 if (param != NULL) { 1143 // Note: that a pair of random strings is read as 0 0 1144 int *ptr = (int *)fx_param->data; 1145 int *ptr2 = (int *)((char *)param + sizeof(effect_param_t)); 1146 ALOGW("loadEffectParameter() ptr %p ptr2 %p", ptr, ptr2); 1147 *ptr++ = atoi(param->name); 1148 *ptr = atoi(param->value); 1149 fx_param->psize = sizeof(int); 1150 fx_param->vsize = sizeof(int); 1151 return fx_param; 1152 } 1153 } 1154 if (param == NULL || value == NULL) { 1155 ALOGW("loadEffectParameter() invalid parameter description %s", root->name); 1156 goto error; 1157 } 1158 1159 fx_param->psize = 0; 1160 param = param->first_child; 1161 while (param) { 1162 ALOGV("loadEffectParameter() reading param of type %s", param->name); 1163 size_t size = readParamValue(param, (char *)fx_param, &curSize, &totSize); 1164 if (size == 0) { 1165 goto error; 1166 } 1167 fx_param->psize += size; 1168 param = param->next; 1169 } 1170 1171 // align start of value field on 32 bit boundary 1172 curSize = ((curSize - 1 ) / sizeof(int) + 1) * sizeof(int); 1173 1174 fx_param->vsize = 0; 1175 value = value->first_child; 1176 while (value) { 1177 ALOGV("loadEffectParameter() reading value of type %s", value->name); 1178 size_t size = readParamValue(value, (char *)fx_param, &curSize, &totSize); 1179 if (size == 0) { 1180 goto error; 1181 } 1182 fx_param->vsize += size; 1183 value = value->next; 1184 } 1185 1186 return fx_param; 1187 1188error: 1189 delete fx_param; 1190 return NULL; 1191} 1192 1193void AudioPolicyService::loadEffectParameters(cnode *root, Vector <effect_param_t *>& params) 1194{ 1195 cnode *node = root->first_child; 1196 while (node) { 1197 ALOGV("loadEffectParameters() loading param %s", node->name); 1198 effect_param_t *param = loadEffectParameter(node); 1199 if (param == NULL) { 1200 node = node->next; 1201 continue; 1202 } 1203 params.add(param); 1204 node = node->next; 1205 } 1206} 1207 1208AudioPolicyService::InputSourceDesc *AudioPolicyService::loadInputSource( 1209 cnode *root, 1210 const Vector <EffectDesc *>& effects) 1211{ 1212 cnode *node = root->first_child; 1213 if (node == NULL) { 1214 ALOGW("loadInputSource() empty element %s", root->name); 1215 return NULL; 1216 } 1217 InputSourceDesc *source = new InputSourceDesc(); 1218 while (node) { 1219 size_t i; 1220 for (i = 0; i < effects.size(); i++) { 1221 if (strncmp(effects[i]->mName, node->name, EFFECT_STRING_LEN_MAX) == 0) { 1222 ALOGV("loadInputSource() found effect %s in list", node->name); 1223 break; 1224 } 1225 } 1226 if (i == effects.size()) { 1227 ALOGV("loadInputSource() effect %s not in list", node->name); 1228 node = node->next; 1229 continue; 1230 } 1231 EffectDesc *effect = new EffectDesc(*effects[i]); // deep copy 1232 loadEffectParameters(node, effect->mParams); 1233 ALOGV("loadInputSource() adding effect %s uuid %08x", effect->mName, effect->mUuid.timeLow); 1234 source->mEffects.add(effect); 1235 node = node->next; 1236 } 1237 if (source->mEffects.size() == 0) { 1238 ALOGW("loadInputSource() no valid effects found in source %s", root->name); 1239 delete source; 1240 return NULL; 1241 } 1242 return source; 1243} 1244 1245status_t AudioPolicyService::loadInputSources(cnode *root, const Vector <EffectDesc *>& effects) 1246{ 1247 cnode *node = config_find(root, PREPROCESSING_TAG); 1248 if (node == NULL) { 1249 return -ENOENT; 1250 } 1251 node = node->first_child; 1252 while (node) { 1253 audio_source_t source = inputSourceNameToEnum(node->name); 1254 if (source == AUDIO_SOURCE_CNT) { 1255 ALOGW("loadInputSources() invalid input source %s", node->name); 1256 node = node->next; 1257 continue; 1258 } 1259 ALOGV("loadInputSources() loading input source %s", node->name); 1260 InputSourceDesc *desc = loadInputSource(node, effects); 1261 if (desc == NULL) { 1262 node = node->next; 1263 continue; 1264 } 1265 mInputSources.add(source, desc); 1266 node = node->next; 1267 } 1268 return NO_ERROR; 1269} 1270 1271AudioPolicyService::EffectDesc *AudioPolicyService::loadEffect(cnode *root) 1272{ 1273 cnode *node = config_find(root, UUID_TAG); 1274 if (node == NULL) { 1275 return NULL; 1276 } 1277 effect_uuid_t uuid; 1278 if (AudioEffect::stringToGuid(node->value, &uuid) != NO_ERROR) { 1279 ALOGW("loadEffect() invalid uuid %s", node->value); 1280 return NULL; 1281 } 1282 return new EffectDesc(root->name, uuid); 1283} 1284 1285status_t AudioPolicyService::loadEffects(cnode *root, Vector <EffectDesc *>& effects) 1286{ 1287 cnode *node = config_find(root, EFFECTS_TAG); 1288 if (node == NULL) { 1289 return -ENOENT; 1290 } 1291 node = node->first_child; 1292 while (node) { 1293 ALOGV("loadEffects() loading effect %s", node->name); 1294 EffectDesc *effect = loadEffect(node); 1295 if (effect == NULL) { 1296 node = node->next; 1297 continue; 1298 } 1299 effects.add(effect); 1300 node = node->next; 1301 } 1302 return NO_ERROR; 1303} 1304 1305status_t AudioPolicyService::loadPreProcessorConfig(const char *path) 1306{ 1307 cnode *root; 1308 char *data; 1309 1310 data = (char *)load_file(path, NULL); 1311 if (data == NULL) { 1312 return -ENODEV; 1313 } 1314 root = config_node("", ""); 1315 config_load(root, data); 1316 1317 Vector <EffectDesc *> effects; 1318 loadEffects(root, effects); 1319 loadInputSources(root, effects); 1320 1321 config_free(root); 1322 free(root); 1323 free(data); 1324 1325 return NO_ERROR; 1326} 1327 1328/* implementation of the interface to the policy manager */ 1329extern "C" { 1330 1331 1332static audio_module_handle_t aps_load_hw_module(void *service, 1333 const char *name) 1334{ 1335 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1336 if (af == 0) { 1337 ALOGW("%s: could not get AudioFlinger", __func__); 1338 return 0; 1339 } 1340 1341 return af->loadHwModule(name); 1342} 1343 1344// deprecated: replaced by aps_open_output_on_module() 1345static audio_io_handle_t aps_open_output(void *service, 1346 audio_devices_t *pDevices, 1347 uint32_t *pSamplingRate, 1348 audio_format_t *pFormat, 1349 audio_channel_mask_t *pChannelMask, 1350 uint32_t *pLatencyMs, 1351 audio_output_flags_t flags) 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->openOutput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask, 1360 pLatencyMs, flags); 1361} 1362 1363static audio_io_handle_t aps_open_output_on_module(void *service, 1364 audio_module_handle_t module, 1365 audio_devices_t *pDevices, 1366 uint32_t *pSamplingRate, 1367 audio_format_t *pFormat, 1368 audio_channel_mask_t *pChannelMask, 1369 uint32_t *pLatencyMs, 1370 audio_output_flags_t flags) 1371{ 1372 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1373 if (af == 0) { 1374 ALOGW("%s: could not get AudioFlinger", __func__); 1375 return 0; 1376 } 1377 return af->openOutput(module, pDevices, pSamplingRate, pFormat, pChannelMask, 1378 pLatencyMs, flags); 1379} 1380 1381static audio_io_handle_t aps_open_dup_output(void *service, 1382 audio_io_handle_t output1, 1383 audio_io_handle_t output2) 1384{ 1385 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1386 if (af == 0) { 1387 ALOGW("%s: could not get AudioFlinger", __func__); 1388 return 0; 1389 } 1390 return af->openDuplicateOutput(output1, output2); 1391} 1392 1393static int aps_close_output(void *service, audio_io_handle_t output) 1394{ 1395 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1396 if (af == 0) 1397 return PERMISSION_DENIED; 1398 1399 return af->closeOutput(output); 1400} 1401 1402static int aps_suspend_output(void *service, audio_io_handle_t output) 1403{ 1404 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1405 if (af == 0) { 1406 ALOGW("%s: could not get AudioFlinger", __func__); 1407 return PERMISSION_DENIED; 1408 } 1409 1410 return af->suspendOutput(output); 1411} 1412 1413static int aps_restore_output(void *service, audio_io_handle_t output) 1414{ 1415 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1416 if (af == 0) { 1417 ALOGW("%s: could not get AudioFlinger", __func__); 1418 return PERMISSION_DENIED; 1419 } 1420 1421 return af->restoreOutput(output); 1422} 1423 1424// deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored 1425static audio_io_handle_t aps_open_input(void *service, 1426 audio_devices_t *pDevices, 1427 uint32_t *pSamplingRate, 1428 audio_format_t *pFormat, 1429 audio_channel_mask_t *pChannelMask, 1430 audio_in_acoustics_t acoustics) 1431{ 1432 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1433 if (af == 0) { 1434 ALOGW("%s: could not get AudioFlinger", __func__); 1435 return 0; 1436 } 1437 1438 return af->openInput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask); 1439} 1440 1441static audio_io_handle_t aps_open_input_on_module(void *service, 1442 audio_module_handle_t module, 1443 audio_devices_t *pDevices, 1444 uint32_t *pSamplingRate, 1445 audio_format_t *pFormat, 1446 audio_channel_mask_t *pChannelMask) 1447{ 1448 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1449 if (af == 0) { 1450 ALOGW("%s: could not get AudioFlinger", __func__); 1451 return 0; 1452 } 1453 1454 return af->openInput(module, pDevices, pSamplingRate, pFormat, pChannelMask); 1455} 1456 1457static int aps_close_input(void *service, audio_io_handle_t input) 1458{ 1459 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1460 if (af == 0) 1461 return PERMISSION_DENIED; 1462 1463 return af->closeInput(input); 1464} 1465 1466static int aps_set_stream_output(void *service, audio_stream_type_t stream, 1467 audio_io_handle_t output) 1468{ 1469 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1470 if (af == 0) 1471 return PERMISSION_DENIED; 1472 1473 return af->setStreamOutput(stream, output); 1474} 1475 1476static int aps_move_effects(void *service, int session, 1477 audio_io_handle_t src_output, 1478 audio_io_handle_t dst_output) 1479{ 1480 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1481 if (af == 0) 1482 return PERMISSION_DENIED; 1483 1484 return af->moveEffects(session, src_output, dst_output); 1485} 1486 1487static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, 1488 const char *keys) 1489{ 1490 String8 result = AudioSystem::getParameters(io_handle, String8(keys)); 1491 return strdup(result.string()); 1492} 1493 1494static void aps_set_parameters(void *service, audio_io_handle_t io_handle, 1495 const char *kv_pairs, int delay_ms) 1496{ 1497 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1498 1499 audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); 1500} 1501 1502static int aps_set_stream_volume(void *service, audio_stream_type_t stream, 1503 float volume, audio_io_handle_t output, 1504 int delay_ms) 1505{ 1506 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1507 1508 return audioPolicyService->setStreamVolume(stream, volume, output, 1509 delay_ms); 1510} 1511 1512static int aps_start_tone(void *service, audio_policy_tone_t tone, 1513 audio_stream_type_t stream) 1514{ 1515 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1516 1517 return audioPolicyService->startTone(tone, stream); 1518} 1519 1520static int aps_stop_tone(void *service) 1521{ 1522 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1523 1524 return audioPolicyService->stopTone(); 1525} 1526 1527static int aps_set_voice_volume(void *service, float volume, int delay_ms) 1528{ 1529 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1530 1531 return audioPolicyService->setVoiceVolume(volume, delay_ms); 1532} 1533 1534}; // extern "C" 1535 1536namespace { 1537 struct audio_policy_service_ops aps_ops = { 1538 open_output : aps_open_output, 1539 open_duplicate_output : aps_open_dup_output, 1540 close_output : aps_close_output, 1541 suspend_output : aps_suspend_output, 1542 restore_output : aps_restore_output, 1543 open_input : aps_open_input, 1544 close_input : aps_close_input, 1545 set_stream_volume : aps_set_stream_volume, 1546 set_stream_output : aps_set_stream_output, 1547 set_parameters : aps_set_parameters, 1548 get_parameters : aps_get_parameters, 1549 start_tone : aps_start_tone, 1550 stop_tone : aps_stop_tone, 1551 set_voice_volume : aps_set_voice_volume, 1552 move_effects : aps_move_effects, 1553 load_hw_module : aps_load_hw_module, 1554 open_output_on_module : aps_open_output_on_module, 1555 open_input_on_module : aps_open_input_on_module, 1556 }; 1557}; // namespace <unnamed> 1558 1559}; // namespace android 1560