AudioPolicyService.cpp revision bac4a4a9073a440bc6df7ca2306604819aa1c342
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 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 104AudioPolicyService::~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 130status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device, 131 audio_policy_dev_state_t state, 132 const char *device_address) 133{ 134 if (mpAudioPolicy == NULL) { 135 return NO_INIT; 136 } 137 if (!settingsAllowed()) { 138 return PERMISSION_DENIED; 139 } 140 if (!audio_is_output_device(device) && !audio_is_input_device(device)) { 141 return BAD_VALUE; 142 } 143 if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE && 144 state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 145 return BAD_VALUE; 146 } 147 148 ALOGV("setDeviceConnectionState() tid %d", gettid()); 149 Mutex::Autolock _l(mLock); 150 return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device, 151 state, device_address); 152} 153 154audio_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 165status_t AudioPolicyService::setPhoneState(audio_mode_t state) 166{ 167 if (mpAudioPolicy == NULL) { 168 return NO_INIT; 169 } 170 if (!settingsAllowed()) { 171 return PERMISSION_DENIED; 172 } 173 if (uint32_t(state) >= AUDIO_MODE_CNT) { 174 return BAD_VALUE; 175 } 176 177 ALOGV("setPhoneState() tid %d", gettid()); 178 179 // TODO: check if it is more appropriate to do it in platform specific policy manager 180 AudioSystem::setMode(state); 181 182 Mutex::Autolock _l(mLock); 183 mpAudioPolicy->set_phone_state(mpAudioPolicy, state); 184 return NO_ERROR; 185} 186 187status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage, 188 audio_policy_forced_cfg_t config) 189{ 190 if (mpAudioPolicy == NULL) { 191 return NO_INIT; 192 } 193 if (!settingsAllowed()) { 194 return PERMISSION_DENIED; 195 } 196 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 197 return BAD_VALUE; 198 } 199 if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) { 200 return BAD_VALUE; 201 } 202 ALOGV("setForceUse() tid %d", gettid()); 203 Mutex::Autolock _l(mLock); 204 mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config); 205 return NO_ERROR; 206} 207 208audio_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 219audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream, 220 uint32_t samplingRate, 221 audio_format_t format, 222 audio_channel_mask_t channelMask, 223 audio_output_flags_t flags) 224{ 225 if (mpAudioPolicy == NULL) { 226 return 0; 227 } 228 ALOGV("getOutput() tid %d", gettid()); 229 Mutex::Autolock _l(mLock); 230 return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channelMask, flags); 231} 232 233status_t AudioPolicyService::startOutput(audio_io_handle_t output, 234 audio_stream_type_t stream, 235 int session) 236{ 237 if (mpAudioPolicy == NULL) { 238 return NO_INIT; 239 } 240 ALOGV("startOutput() tid %d", gettid()); 241 Mutex::Autolock _l(mLock); 242 return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); 243} 244 245status_t AudioPolicyService::stopOutput(audio_io_handle_t output, 246 audio_stream_type_t stream, 247 int session) 248{ 249 if (mpAudioPolicy == NULL) { 250 return NO_INIT; 251 } 252 ALOGV("stopOutput() tid %d", gettid()); 253 Mutex::Autolock _l(mLock); 254 return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); 255} 256 257void AudioPolicyService::releaseOutput(audio_io_handle_t output) 258{ 259 if (mpAudioPolicy == NULL) { 260 return; 261 } 262 ALOGV("releaseOutput() tid %d", gettid()); 263 Mutex::Autolock _l(mLock); 264 mpAudioPolicy->release_output(mpAudioPolicy, output); 265} 266 267audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource, 268 uint32_t samplingRate, 269 audio_format_t format, 270 audio_channel_mask_t channelMask, 271 int audioSession) 272{ 273 if (mpAudioPolicy == NULL) { 274 return 0; 275 } 276 // already checked by client, but double-check in case the client wrapper is bypassed 277 if (uint32_t(inputSource) >= AUDIO_SOURCE_CNT) { 278 return 0; 279 } 280 Mutex::Autolock _l(mLock); 281 // the audio_in_acoustics_t parameter is ignored by get_input() 282 audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, 283 format, channelMask, (audio_in_acoustics_t) 0); 284 285 if (input == 0) { 286 return input; 287 } 288 // create audio pre processors according to input source 289 ssize_t index = mInputSources.indexOfKey(inputSource); 290 if (index < 0) { 291 return input; 292 } 293 ssize_t idx = mInputs.indexOfKey(input); 294 InputDesc *inputDesc; 295 if (idx < 0) { 296 inputDesc = new InputDesc(audioSession); 297 mInputs.add(input, inputDesc); 298 } else { 299 inputDesc = mInputs.valueAt(idx); 300 } 301 302 Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects; 303 for (size_t i = 0; i < effects.size(); i++) { 304 EffectDesc *effect = effects[i]; 305 sp<AudioEffect> fx = new AudioEffect(NULL, &effect->mUuid, -1, 0, 0, audioSession, input); 306 status_t status = fx->initCheck(); 307 if (status != NO_ERROR && status != ALREADY_EXISTS) { 308 ALOGW("Failed to create Fx %s on input %d", effect->mName, input); 309 // fx goes out of scope and strong ref on AudioEffect is released 310 continue; 311 } 312 for (size_t j = 0; j < effect->mParams.size(); j++) { 313 fx->setParameter(effect->mParams[j]); 314 } 315 inputDesc->mEffects.add(fx); 316 } 317 setPreProcessorEnabled(inputDesc, true); 318 return input; 319} 320 321status_t AudioPolicyService::startInput(audio_io_handle_t input) 322{ 323 if (mpAudioPolicy == NULL) { 324 return NO_INIT; 325 } 326 Mutex::Autolock _l(mLock); 327 328 return mpAudioPolicy->start_input(mpAudioPolicy, input); 329} 330 331status_t AudioPolicyService::stopInput(audio_io_handle_t input) 332{ 333 if (mpAudioPolicy == NULL) { 334 return NO_INIT; 335 } 336 Mutex::Autolock _l(mLock); 337 338 return mpAudioPolicy->stop_input(mpAudioPolicy, input); 339} 340 341void AudioPolicyService::releaseInput(audio_io_handle_t input) 342{ 343 if (mpAudioPolicy == NULL) { 344 return; 345 } 346 Mutex::Autolock _l(mLock); 347 mpAudioPolicy->release_input(mpAudioPolicy, input); 348 349 ssize_t index = mInputs.indexOfKey(input); 350 if (index < 0) { 351 return; 352 } 353 InputDesc *inputDesc = mInputs.valueAt(index); 354 setPreProcessorEnabled(inputDesc, false); 355 delete inputDesc; 356 mInputs.removeItemsAt(index); 357} 358 359status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, 360 int indexMin, 361 int indexMax) 362{ 363 if (mpAudioPolicy == NULL) { 364 return NO_INIT; 365 } 366 if (!settingsAllowed()) { 367 return PERMISSION_DENIED; 368 } 369 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 370 return BAD_VALUE; 371 } 372 Mutex::Autolock _l(mLock); 373 mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax); 374 return NO_ERROR; 375} 376 377status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream, 378 int index, 379 audio_devices_t device) 380{ 381 if (mpAudioPolicy == NULL) { 382 return NO_INIT; 383 } 384 if (!settingsAllowed()) { 385 return PERMISSION_DENIED; 386 } 387 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 388 return BAD_VALUE; 389 } 390 Mutex::Autolock _l(mLock); 391 if (mpAudioPolicy->set_stream_volume_index_for_device) { 392 return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy, 393 stream, 394 index, 395 device); 396 } else { 397 return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index); 398 } 399} 400 401status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream, 402 int *index, 403 audio_devices_t device) 404{ 405 if (mpAudioPolicy == NULL) { 406 return NO_INIT; 407 } 408 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 409 return BAD_VALUE; 410 } 411 Mutex::Autolock _l(mLock); 412 if (mpAudioPolicy->get_stream_volume_index_for_device) { 413 return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy, 414 stream, 415 index, 416 device); 417 } else { 418 return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); 419 } 420} 421 422uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) 423{ 424 if (mpAudioPolicy == NULL) { 425 return 0; 426 } 427 return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); 428} 429 430//audio policy: use audio_device_t appropriately 431 432audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) 433{ 434 if (mpAudioPolicy == NULL) { 435 return (audio_devices_t)0; 436 } 437 return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); 438} 439 440audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc) 441{ 442 if (mpAudioPolicy == NULL) { 443 return NO_INIT; 444 } 445 Mutex::Autolock _l(mLock); 446 return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); 447} 448 449status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc, 450 audio_io_handle_t io, 451 uint32_t strategy, 452 int session, 453 int id) 454{ 455 if (mpAudioPolicy == NULL) { 456 return NO_INIT; 457 } 458 return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id); 459} 460 461status_t AudioPolicyService::unregisterEffect(int id) 462{ 463 if (mpAudioPolicy == NULL) { 464 return NO_INIT; 465 } 466 return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); 467} 468 469status_t AudioPolicyService::setEffectEnabled(int id, bool enabled) 470{ 471 if (mpAudioPolicy == NULL) { 472 return NO_INIT; 473 } 474 return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled); 475} 476 477bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 478{ 479 if (mpAudioPolicy == NULL) { 480 return 0; 481 } 482 Mutex::Autolock _l(mLock); 483 return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); 484} 485 486status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession, 487 effect_descriptor_t *descriptors, 488 uint32_t *count) 489{ 490 491 if (mpAudioPolicy == NULL) { 492 *count = 0; 493 return NO_INIT; 494 } 495 Mutex::Autolock _l(mLock); 496 status_t status = NO_ERROR; 497 498 size_t index; 499 for (index = 0; index < mInputs.size(); index++) { 500 if (mInputs.valueAt(index)->mSessionId == audioSession) { 501 break; 502 } 503 } 504 if (index == mInputs.size()) { 505 *count = 0; 506 return BAD_VALUE; 507 } 508 Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects; 509 510 for (size_t i = 0; i < effects.size(); i++) { 511 effect_descriptor_t desc = effects[i]->descriptor(); 512 if (i < *count) { 513 descriptors[i] = desc; 514 } 515 } 516 if (effects.size() > *count) { 517 status = NO_MEMORY; 518 } 519 *count = effects.size(); 520 return status; 521} 522 523void AudioPolicyService::binderDied(const wp<IBinder>& who) { 524 ALOGW("binderDied() %p, tid %d, calling pid %d", who.unsafe_get(), gettid(), 525 IPCThreadState::self()->getCallingPid()); 526} 527 528static bool tryLock(Mutex& mutex) 529{ 530 bool locked = false; 531 for (int i = 0; i < kDumpLockRetries; ++i) { 532 if (mutex.tryLock() == NO_ERROR) { 533 locked = true; 534 break; 535 } 536 usleep(kDumpLockSleepUs); 537 } 538 return locked; 539} 540 541status_t AudioPolicyService::dumpInternals(int fd) 542{ 543 const size_t SIZE = 256; 544 char buffer[SIZE]; 545 String8 result; 546 547 snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); 548 result.append(buffer); 549 snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); 550 result.append(buffer); 551 snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); 552 result.append(buffer); 553 554 write(fd, result.string(), result.size()); 555 return NO_ERROR; 556} 557 558status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) 559{ 560 if (!dumpAllowed()) { 561 dumpPermissionDenial(fd); 562 } else { 563 bool locked = tryLock(mLock); 564 if (!locked) { 565 String8 result(kDeadlockedString); 566 write(fd, result.string(), result.size()); 567 } 568 569 dumpInternals(fd); 570 if (mAudioCommandThread != 0) { 571 mAudioCommandThread->dump(fd); 572 } 573 if (mTonePlaybackThread != 0) { 574 mTonePlaybackThread->dump(fd); 575 } 576 577 if (mpAudioPolicy) { 578 mpAudioPolicy->dump(mpAudioPolicy, fd); 579 } 580 581 if (locked) mLock.unlock(); 582 } 583 return NO_ERROR; 584} 585 586status_t AudioPolicyService::dumpPermissionDenial(int fd) 587{ 588 const size_t SIZE = 256; 589 char buffer[SIZE]; 590 String8 result; 591 snprintf(buffer, SIZE, "Permission Denial: " 592 "can't dump AudioPolicyService from pid=%d, uid=%d\n", 593 IPCThreadState::self()->getCallingPid(), 594 IPCThreadState::self()->getCallingUid()); 595 result.append(buffer); 596 write(fd, result.string(), result.size()); 597 return NO_ERROR; 598} 599 600void AudioPolicyService::setPreProcessorEnabled(const InputDesc *inputDesc, bool enabled) 601{ 602 const Vector<sp<AudioEffect> > &fxVector = inputDesc->mEffects; 603 for (size_t i = 0; i < fxVector.size(); i++) { 604 fxVector.itemAt(i)->setEnabled(enabled); 605 } 606} 607 608status_t AudioPolicyService::onTransact( 609 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 610{ 611 return BnAudioPolicyService::onTransact(code, data, reply, flags); 612} 613 614 615// ----------- AudioPolicyService::AudioCommandThread implementation ---------- 616 617AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name) 618 : Thread(false), mName(name) 619{ 620 mpToneGenerator = NULL; 621} 622 623 624AudioPolicyService::AudioCommandThread::~AudioCommandThread() 625{ 626 if (mName != "" && !mAudioCommands.isEmpty()) { 627 release_wake_lock(mName.string()); 628 } 629 mAudioCommands.clear(); 630 delete mpToneGenerator; 631} 632 633void AudioPolicyService::AudioCommandThread::onFirstRef() 634{ 635 if (mName != "") { 636 run(mName.string(), ANDROID_PRIORITY_AUDIO); 637 } else { 638 run("AudioCommand", ANDROID_PRIORITY_AUDIO); 639 } 640} 641 642bool AudioPolicyService::AudioCommandThread::threadLoop() 643{ 644 nsecs_t waitTime = INT64_MAX; 645 646 mLock.lock(); 647 while (!exitPending()) 648 { 649 while (!mAudioCommands.isEmpty()) { 650 nsecs_t curTime = systemTime(); 651 // commands are sorted by increasing time stamp: execute them from index 0 and up 652 if (mAudioCommands[0]->mTime <= curTime) { 653 AudioCommand *command = mAudioCommands[0]; 654 mAudioCommands.removeAt(0); 655 mLastCommand = *command; 656 657 switch (command->mCommand) { 658 case START_TONE: { 659 mLock.unlock(); 660 ToneData *data = (ToneData *)command->mParam; 661 ALOGV("AudioCommandThread() processing start tone %d on stream %d", 662 data->mType, data->mStream); 663 delete mpToneGenerator; 664 mpToneGenerator = new ToneGenerator(data->mStream, 1.0); 665 mpToneGenerator->startTone(data->mType); 666 delete data; 667 mLock.lock(); 668 }break; 669 case STOP_TONE: { 670 mLock.unlock(); 671 ALOGV("AudioCommandThread() processing stop tone"); 672 if (mpToneGenerator != NULL) { 673 mpToneGenerator->stopTone(); 674 delete mpToneGenerator; 675 mpToneGenerator = NULL; 676 } 677 mLock.lock(); 678 }break; 679 case SET_VOLUME: { 680 VolumeData *data = (VolumeData *)command->mParam; 681 ALOGV("AudioCommandThread() processing set volume stream %d, \ 682 volume %f, output %d", data->mStream, data->mVolume, data->mIO); 683 command->mStatus = AudioSystem::setStreamVolume(data->mStream, 684 data->mVolume, 685 data->mIO); 686 if (command->mWaitStatus) { 687 command->mCond.signal(); 688 mWaitWorkCV.wait(mLock); 689 } 690 delete data; 691 }break; 692 case SET_PARAMETERS: { 693 ParametersData *data = (ParametersData *)command->mParam; 694 ALOGV("AudioCommandThread() processing set parameters string %s, io %d", 695 data->mKeyValuePairs.string(), data->mIO); 696 command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); 697 if (command->mWaitStatus) { 698 command->mCond.signal(); 699 mWaitWorkCV.wait(mLock); 700 } 701 delete data; 702 }break; 703 case SET_VOICE_VOLUME: { 704 VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; 705 ALOGV("AudioCommandThread() processing set voice volume volume %f", 706 data->mVolume); 707 command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); 708 if (command->mWaitStatus) { 709 command->mCond.signal(); 710 mWaitWorkCV.wait(mLock); 711 } 712 delete data; 713 }break; 714 default: 715 ALOGW("AudioCommandThread() unknown command %d", command->mCommand); 716 } 717 delete command; 718 waitTime = INT64_MAX; 719 } else { 720 waitTime = mAudioCommands[0]->mTime - curTime; 721 break; 722 } 723 } 724 // release delayed commands wake lock 725 if (mName != "" && mAudioCommands.isEmpty()) { 726 release_wake_lock(mName.string()); 727 } 728 ALOGV("AudioCommandThread() going to sleep"); 729 mWaitWorkCV.waitRelative(mLock, waitTime); 730 ALOGV("AudioCommandThread() waking up"); 731 } 732 mLock.unlock(); 733 return false; 734} 735 736status_t AudioPolicyService::AudioCommandThread::dump(int fd) 737{ 738 const size_t SIZE = 256; 739 char buffer[SIZE]; 740 String8 result; 741 742 snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); 743 result.append(buffer); 744 write(fd, result.string(), result.size()); 745 746 bool locked = tryLock(mLock); 747 if (!locked) { 748 String8 result2(kCmdDeadlockedString); 749 write(fd, result2.string(), result2.size()); 750 } 751 752 snprintf(buffer, SIZE, "- Commands:\n"); 753 result = String8(buffer); 754 result.append(" Command Time Wait pParam\n"); 755 for (size_t i = 0; i < mAudioCommands.size(); i++) { 756 mAudioCommands[i]->dump(buffer, SIZE); 757 result.append(buffer); 758 } 759 result.append(" Last Command\n"); 760 mLastCommand.dump(buffer, SIZE); 761 result.append(buffer); 762 763 write(fd, result.string(), result.size()); 764 765 if (locked) mLock.unlock(); 766 767 return NO_ERROR; 768} 769 770void AudioPolicyService::AudioCommandThread::startToneCommand(ToneGenerator::tone_type type, 771 audio_stream_type_t stream) 772{ 773 AudioCommand *command = new AudioCommand(); 774 command->mCommand = START_TONE; 775 ToneData *data = new ToneData(); 776 data->mType = type; 777 data->mStream = stream; 778 command->mParam = (void *)data; 779 Mutex::Autolock _l(mLock); 780 insertCommand_l(command); 781 ALOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); 782 mWaitWorkCV.signal(); 783} 784 785void AudioPolicyService::AudioCommandThread::stopToneCommand() 786{ 787 AudioCommand *command = new AudioCommand(); 788 command->mCommand = STOP_TONE; 789 command->mParam = NULL; 790 Mutex::Autolock _l(mLock); 791 insertCommand_l(command); 792 ALOGV("AudioCommandThread() adding tone stop"); 793 mWaitWorkCV.signal(); 794} 795 796status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, 797 float volume, 798 audio_io_handle_t output, 799 int delayMs) 800{ 801 status_t status = NO_ERROR; 802 803 AudioCommand *command = new AudioCommand(); 804 command->mCommand = SET_VOLUME; 805 VolumeData *data = new VolumeData(); 806 data->mStream = stream; 807 data->mVolume = volume; 808 data->mIO = output; 809 command->mParam = data; 810 Mutex::Autolock _l(mLock); 811 insertCommand_l(command, delayMs); 812 ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", 813 stream, volume, output); 814 mWaitWorkCV.signal(); 815 if (command->mWaitStatus) { 816 command->mCond.wait(mLock); 817 status = command->mStatus; 818 mWaitWorkCV.signal(); 819 } 820 return status; 821} 822 823status_t AudioPolicyService::AudioCommandThread::parametersCommand(audio_io_handle_t ioHandle, 824 const char *keyValuePairs, 825 int delayMs) 826{ 827 status_t status = NO_ERROR; 828 829 AudioCommand *command = new AudioCommand(); 830 command->mCommand = SET_PARAMETERS; 831 ParametersData *data = new ParametersData(); 832 data->mIO = ioHandle; 833 data->mKeyValuePairs = String8(keyValuePairs); 834 command->mParam = data; 835 Mutex::Autolock _l(mLock); 836 insertCommand_l(command, delayMs); 837 ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", 838 keyValuePairs, ioHandle, delayMs); 839 mWaitWorkCV.signal(); 840 if (command->mWaitStatus) { 841 command->mCond.wait(mLock); 842 status = command->mStatus; 843 mWaitWorkCV.signal(); 844 } 845 return status; 846} 847 848status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) 849{ 850 status_t status = NO_ERROR; 851 852 AudioCommand *command = new AudioCommand(); 853 command->mCommand = SET_VOICE_VOLUME; 854 VoiceVolumeData *data = new VoiceVolumeData(); 855 data->mVolume = volume; 856 command->mParam = data; 857 Mutex::Autolock _l(mLock); 858 insertCommand_l(command, delayMs); 859 ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); 860 mWaitWorkCV.signal(); 861 if (command->mWaitStatus) { 862 command->mCond.wait(mLock); 863 status = command->mStatus; 864 mWaitWorkCV.signal(); 865 } 866 return status; 867} 868 869// insertCommand_l() must be called with mLock held 870void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) 871{ 872 ssize_t i; // not size_t because i will count down to -1 873 Vector <AudioCommand *> removedCommands; 874 875 nsecs_t time = 0; 876 command->mTime = systemTime() + milliseconds(delayMs); 877 878 // acquire wake lock to make sure delayed commands are processed 879 if (mName != "" && mAudioCommands.isEmpty()) { 880 acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); 881 } 882 883 // check same pending commands with later time stamps and eliminate them 884 for (i = mAudioCommands.size()-1; i >= 0; i--) { 885 AudioCommand *command2 = mAudioCommands[i]; 886 // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands 887 if (command2->mTime <= command->mTime) break; 888 if (command2->mCommand != command->mCommand) continue; 889 890 switch (command->mCommand) { 891 case SET_PARAMETERS: { 892 ParametersData *data = (ParametersData *)command->mParam; 893 ParametersData *data2 = (ParametersData *)command2->mParam; 894 if (data->mIO != data2->mIO) break; 895 ALOGV("Comparing parameter command %s to new command %s", 896 data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); 897 AudioParameter param = AudioParameter(data->mKeyValuePairs); 898 AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); 899 for (size_t j = 0; j < param.size(); j++) { 900 String8 key; 901 String8 value; 902 param.getAt(j, key, value); 903 for (size_t k = 0; k < param2.size(); k++) { 904 String8 key2; 905 String8 value2; 906 param2.getAt(k, key2, value2); 907 if (key2 == key) { 908 param2.remove(key2); 909 ALOGV("Filtering out parameter %s", key2.string()); 910 break; 911 } 912 } 913 } 914 // if all keys have been filtered out, remove the command. 915 // otherwise, update the key value pairs 916 if (param2.size() == 0) { 917 removedCommands.add(command2); 918 } else { 919 data2->mKeyValuePairs = param2.toString(); 920 } 921 time = command2->mTime; 922 } break; 923 924 case SET_VOLUME: { 925 VolumeData *data = (VolumeData *)command->mParam; 926 VolumeData *data2 = (VolumeData *)command2->mParam; 927 if (data->mIO != data2->mIO) break; 928 if (data->mStream != data2->mStream) break; 929 ALOGV("Filtering out volume command on output %d for stream %d", 930 data->mIO, data->mStream); 931 removedCommands.add(command2); 932 time = command2->mTime; 933 } break; 934 case START_TONE: 935 case STOP_TONE: 936 default: 937 break; 938 } 939 } 940 941 // remove filtered commands 942 for (size_t j = 0; j < removedCommands.size(); j++) { 943 // removed commands always have time stamps greater than current command 944 for (size_t k = i + 1; k < mAudioCommands.size(); k++) { 945 if (mAudioCommands[k] == removedCommands[j]) { 946 ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); 947 mAudioCommands.removeAt(k); 948 break; 949 } 950 } 951 } 952 removedCommands.clear(); 953 954 // wait for status only if delay is 0 and command time was not modified above 955 if (delayMs == 0 && time == 0) { 956 command->mWaitStatus = true; 957 } else { 958 command->mWaitStatus = false; 959 } 960 // update command time if modified above 961 if (time != 0) { 962 command->mTime = time; 963 } 964 965 // insert command at the right place according to its time stamp 966 ALOGV("inserting command: %d at index %d, num commands %d", 967 command->mCommand, (int)i+1, mAudioCommands.size()); 968 mAudioCommands.insertAt(command, i + 1); 969} 970 971void AudioPolicyService::AudioCommandThread::exit() 972{ 973 ALOGV("AudioCommandThread::exit"); 974 { 975 AutoMutex _l(mLock); 976 requestExit(); 977 mWaitWorkCV.signal(); 978 } 979 requestExitAndWait(); 980} 981 982void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) 983{ 984 snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", 985 mCommand, 986 (int)ns2s(mTime), 987 (int)ns2ms(mTime)%1000, 988 mWaitStatus, 989 mParam); 990} 991 992/******* helpers for the service_ops callbacks defined below *********/ 993void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, 994 const char *keyValuePairs, 995 int delayMs) 996{ 997 mAudioCommandThread->parametersCommand(ioHandle, keyValuePairs, 998 delayMs); 999} 1000 1001int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, 1002 float volume, 1003 audio_io_handle_t output, 1004 int delayMs) 1005{ 1006 return (int)mAudioCommandThread->volumeCommand(stream, volume, 1007 output, delayMs); 1008} 1009 1010int AudioPolicyService::startTone(audio_policy_tone_t tone, 1011 audio_stream_type_t stream) 1012{ 1013 if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) 1014 ALOGE("startTone: illegal tone requested (%d)", tone); 1015 if (stream != AUDIO_STREAM_VOICE_CALL) 1016 ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, 1017 tone); 1018 mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, 1019 AUDIO_STREAM_VOICE_CALL); 1020 return 0; 1021} 1022 1023int AudioPolicyService::stopTone() 1024{ 1025 mTonePlaybackThread->stopToneCommand(); 1026 return 0; 1027} 1028 1029int AudioPolicyService::setVoiceVolume(float volume, int delayMs) 1030{ 1031 return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); 1032} 1033 1034// ---------------------------------------------------------------------------- 1035// Audio pre-processing configuration 1036// ---------------------------------------------------------------------------- 1037 1038/*static*/ const char * const AudioPolicyService::kInputSourceNames[AUDIO_SOURCE_CNT -1] = { 1039 MIC_SRC_TAG, 1040 VOICE_UL_SRC_TAG, 1041 VOICE_DL_SRC_TAG, 1042 VOICE_CALL_SRC_TAG, 1043 CAMCORDER_SRC_TAG, 1044 VOICE_REC_SRC_TAG, 1045 VOICE_COMM_SRC_TAG 1046}; 1047 1048// returns the audio_source_t enum corresponding to the input source name or 1049// AUDIO_SOURCE_CNT is no match found 1050audio_source_t AudioPolicyService::inputSourceNameToEnum(const char *name) 1051{ 1052 int i; 1053 for (i = AUDIO_SOURCE_MIC; i < AUDIO_SOURCE_CNT; i++) { 1054 if (strcmp(name, kInputSourceNames[i - AUDIO_SOURCE_MIC]) == 0) { 1055 ALOGV("inputSourceNameToEnum found source %s %d", name, i); 1056 break; 1057 } 1058 } 1059 return (audio_source_t)i; 1060} 1061 1062size_t AudioPolicyService::growParamSize(char *param, 1063 size_t size, 1064 size_t *curSize, 1065 size_t *totSize) 1066{ 1067 // *curSize is at least sizeof(effect_param_t) + 2 * sizeof(int) 1068 size_t pos = ((*curSize - 1 ) / size + 1) * size; 1069 1070 if (pos + size > *totSize) { 1071 while (pos + size > *totSize) { 1072 *totSize += ((*totSize + 7) / 8) * 4; 1073 } 1074 param = (char *)realloc(param, *totSize); 1075 } 1076 *curSize = pos + size; 1077 return pos; 1078} 1079 1080size_t AudioPolicyService::readParamValue(cnode *node, 1081 char *param, 1082 size_t *curSize, 1083 size_t *totSize) 1084{ 1085 if (strncmp(node->name, SHORT_TAG, sizeof(SHORT_TAG) + 1) == 0) { 1086 size_t pos = growParamSize(param, sizeof(short), curSize, totSize); 1087 *(short *)((char *)param + pos) = (short)atoi(node->value); 1088 ALOGV("readParamValue() reading short %d", *(short *)((char *)param + pos)); 1089 return sizeof(short); 1090 } else if (strncmp(node->name, INT_TAG, sizeof(INT_TAG) + 1) == 0) { 1091 size_t pos = growParamSize(param, sizeof(int), curSize, totSize); 1092 *(int *)((char *)param + pos) = atoi(node->value); 1093 ALOGV("readParamValue() reading int %d", *(int *)((char *)param + pos)); 1094 return sizeof(int); 1095 } else if (strncmp(node->name, FLOAT_TAG, sizeof(FLOAT_TAG) + 1) == 0) { 1096 size_t pos = growParamSize(param, sizeof(float), curSize, totSize); 1097 *(float *)((char *)param + pos) = (float)atof(node->value); 1098 ALOGV("readParamValue() reading float %f",*(float *)((char *)param + pos)); 1099 return sizeof(float); 1100 } else if (strncmp(node->name, BOOL_TAG, sizeof(BOOL_TAG) + 1) == 0) { 1101 size_t pos = growParamSize(param, sizeof(bool), curSize, totSize); 1102 if (strncmp(node->value, "false", strlen("false") + 1) == 0) { 1103 *(bool *)((char *)param + pos) = false; 1104 } else { 1105 *(bool *)((char *)param + pos) = true; 1106 } 1107 ALOGV("readParamValue() reading bool %s",*(bool *)((char *)param + pos) ? "true" : "false"); 1108 return sizeof(bool); 1109 } else if (strncmp(node->name, STRING_TAG, sizeof(STRING_TAG) + 1) == 0) { 1110 size_t len = strnlen(node->value, EFFECT_STRING_LEN_MAX); 1111 if (*curSize + len + 1 > *totSize) { 1112 *totSize = *curSize + len + 1; 1113 param = (char *)realloc(param, *totSize); 1114 } 1115 strncpy(param + *curSize, node->value, len); 1116 *curSize += len; 1117 param[*curSize] = '\0'; 1118 ALOGV("readParamValue() reading string %s", param + *curSize - len); 1119 return len; 1120 } 1121 ALOGW("readParamValue() unknown param type %s", node->name); 1122 return 0; 1123} 1124 1125effect_param_t *AudioPolicyService::loadEffectParameter(cnode *root) 1126{ 1127 cnode *param; 1128 cnode *value; 1129 size_t curSize = sizeof(effect_param_t); 1130 size_t totSize = sizeof(effect_param_t) + 2 * sizeof(int); 1131 effect_param_t *fx_param = (effect_param_t *)malloc(totSize); 1132 1133 param = config_find(root, PARAM_TAG); 1134 value = config_find(root, VALUE_TAG); 1135 if (param == NULL && value == NULL) { 1136 // try to parse simple parameter form {int int} 1137 param = root->first_child; 1138 if (param != NULL) { 1139 // Note: that a pair of random strings is read as 0 0 1140 int *ptr = (int *)fx_param->data; 1141 int *ptr2 = (int *)((char *)param + sizeof(effect_param_t)); 1142 ALOGW("loadEffectParameter() ptr %p ptr2 %p", ptr, ptr2); 1143 *ptr++ = atoi(param->name); 1144 *ptr = atoi(param->value); 1145 fx_param->psize = sizeof(int); 1146 fx_param->vsize = sizeof(int); 1147 return fx_param; 1148 } 1149 } 1150 if (param == NULL || value == NULL) { 1151 ALOGW("loadEffectParameter() invalid parameter description %s", root->name); 1152 goto error; 1153 } 1154 1155 fx_param->psize = 0; 1156 param = param->first_child; 1157 while (param) { 1158 ALOGV("loadEffectParameter() reading param of type %s", param->name); 1159 size_t size = readParamValue(param, (char *)fx_param, &curSize, &totSize); 1160 if (size == 0) { 1161 goto error; 1162 } 1163 fx_param->psize += size; 1164 param = param->next; 1165 } 1166 1167 // align start of value field on 32 bit boundary 1168 curSize = ((curSize - 1 ) / sizeof(int) + 1) * sizeof(int); 1169 1170 fx_param->vsize = 0; 1171 value = value->first_child; 1172 while (value) { 1173 ALOGV("loadEffectParameter() reading value of type %s", value->name); 1174 size_t size = readParamValue(value, (char *)fx_param, &curSize, &totSize); 1175 if (size == 0) { 1176 goto error; 1177 } 1178 fx_param->vsize += size; 1179 value = value->next; 1180 } 1181 1182 return fx_param; 1183 1184error: 1185 delete fx_param; 1186 return NULL; 1187} 1188 1189void AudioPolicyService::loadEffectParameters(cnode *root, Vector <effect_param_t *>& params) 1190{ 1191 cnode *node = root->first_child; 1192 while (node) { 1193 ALOGV("loadEffectParameters() loading param %s", node->name); 1194 effect_param_t *param = loadEffectParameter(node); 1195 if (param == NULL) { 1196 node = node->next; 1197 continue; 1198 } 1199 params.add(param); 1200 node = node->next; 1201 } 1202} 1203 1204AudioPolicyService::InputSourceDesc *AudioPolicyService::loadInputSource( 1205 cnode *root, 1206 const Vector <EffectDesc *>& effects) 1207{ 1208 cnode *node = root->first_child; 1209 if (node == NULL) { 1210 ALOGW("loadInputSource() empty element %s", root->name); 1211 return NULL; 1212 } 1213 InputSourceDesc *source = new InputSourceDesc(); 1214 while (node) { 1215 size_t i; 1216 for (i = 0; i < effects.size(); i++) { 1217 if (strncmp(effects[i]->mName, node->name, EFFECT_STRING_LEN_MAX) == 0) { 1218 ALOGV("loadInputSource() found effect %s in list", node->name); 1219 break; 1220 } 1221 } 1222 if (i == effects.size()) { 1223 ALOGV("loadInputSource() effect %s not in list", node->name); 1224 node = node->next; 1225 continue; 1226 } 1227 EffectDesc *effect = new EffectDesc(*effects[i]); // deep copy 1228 loadEffectParameters(node, effect->mParams); 1229 ALOGV("loadInputSource() adding effect %s uuid %08x", effect->mName, effect->mUuid.timeLow); 1230 source->mEffects.add(effect); 1231 node = node->next; 1232 } 1233 if (source->mEffects.size() == 0) { 1234 ALOGW("loadInputSource() no valid effects found in source %s", root->name); 1235 delete source; 1236 return NULL; 1237 } 1238 return source; 1239} 1240 1241status_t AudioPolicyService::loadInputSources(cnode *root, const Vector <EffectDesc *>& effects) 1242{ 1243 cnode *node = config_find(root, PREPROCESSING_TAG); 1244 if (node == NULL) { 1245 return -ENOENT; 1246 } 1247 node = node->first_child; 1248 while (node) { 1249 audio_source_t source = inputSourceNameToEnum(node->name); 1250 if (source == AUDIO_SOURCE_CNT) { 1251 ALOGW("loadInputSources() invalid input source %s", node->name); 1252 node = node->next; 1253 continue; 1254 } 1255 ALOGV("loadInputSources() loading input source %s", node->name); 1256 InputSourceDesc *desc = loadInputSource(node, effects); 1257 if (desc == NULL) { 1258 node = node->next; 1259 continue; 1260 } 1261 mInputSources.add(source, desc); 1262 node = node->next; 1263 } 1264 return NO_ERROR; 1265} 1266 1267AudioPolicyService::EffectDesc *AudioPolicyService::loadEffect(cnode *root) 1268{ 1269 cnode *node = config_find(root, UUID_TAG); 1270 if (node == NULL) { 1271 return NULL; 1272 } 1273 effect_uuid_t uuid; 1274 if (AudioEffect::stringToGuid(node->value, &uuid) != NO_ERROR) { 1275 ALOGW("loadEffect() invalid uuid %s", node->value); 1276 return NULL; 1277 } 1278 return new EffectDesc(root->name, uuid); 1279} 1280 1281status_t AudioPolicyService::loadEffects(cnode *root, Vector <EffectDesc *>& effects) 1282{ 1283 cnode *node = config_find(root, EFFECTS_TAG); 1284 if (node == NULL) { 1285 return -ENOENT; 1286 } 1287 node = node->first_child; 1288 while (node) { 1289 ALOGV("loadEffects() loading effect %s", node->name); 1290 EffectDesc *effect = loadEffect(node); 1291 if (effect == NULL) { 1292 node = node->next; 1293 continue; 1294 } 1295 effects.add(effect); 1296 node = node->next; 1297 } 1298 return NO_ERROR; 1299} 1300 1301status_t AudioPolicyService::loadPreProcessorConfig(const char *path) 1302{ 1303 cnode *root; 1304 char *data; 1305 1306 data = (char *)load_file(path, NULL); 1307 if (data == NULL) { 1308 return -ENODEV; 1309 } 1310 root = config_node("", ""); 1311 config_load(root, data); 1312 1313 Vector <EffectDesc *> effects; 1314 loadEffects(root, effects); 1315 loadInputSources(root, effects); 1316 1317 config_free(root); 1318 free(root); 1319 free(data); 1320 1321 return NO_ERROR; 1322} 1323 1324/* implementation of the interface to the policy manager */ 1325extern "C" { 1326 1327 1328static audio_module_handle_t aps_load_hw_module(void *service, 1329 const char *name) 1330{ 1331 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1332 if (af == 0) { 1333 ALOGW("%s: could not get AudioFlinger", __func__); 1334 return 0; 1335 } 1336 1337 return af->loadHwModule(name); 1338} 1339 1340// deprecated: replaced by aps_open_output_on_module() 1341static audio_io_handle_t aps_open_output(void *service, 1342 audio_devices_t *pDevices, 1343 uint32_t *pSamplingRate, 1344 audio_format_t *pFormat, 1345 audio_channel_mask_t *pChannelMask, 1346 uint32_t *pLatencyMs, 1347 audio_output_flags_t flags) 1348{ 1349 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1350 if (af == 0) { 1351 ALOGW("%s: could not get AudioFlinger", __func__); 1352 return 0; 1353 } 1354 1355 return af->openOutput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask, 1356 pLatencyMs, flags); 1357} 1358 1359static audio_io_handle_t aps_open_output_on_module(void *service, 1360 audio_module_handle_t module, 1361 audio_devices_t *pDevices, 1362 uint32_t *pSamplingRate, 1363 audio_format_t *pFormat, 1364 audio_channel_mask_t *pChannelMask, 1365 uint32_t *pLatencyMs, 1366 audio_output_flags_t flags) 1367{ 1368 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1369 if (af == 0) { 1370 ALOGW("%s: could not get AudioFlinger", __func__); 1371 return 0; 1372 } 1373 return af->openOutput(module, pDevices, pSamplingRate, pFormat, pChannelMask, 1374 pLatencyMs, flags); 1375} 1376 1377static audio_io_handle_t aps_open_dup_output(void *service, 1378 audio_io_handle_t output1, 1379 audio_io_handle_t output2) 1380{ 1381 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1382 if (af == 0) { 1383 ALOGW("%s: could not get AudioFlinger", __func__); 1384 return 0; 1385 } 1386 return af->openDuplicateOutput(output1, output2); 1387} 1388 1389static int aps_close_output(void *service, audio_io_handle_t output) 1390{ 1391 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1392 if (af == 0) 1393 return PERMISSION_DENIED; 1394 1395 return af->closeOutput(output); 1396} 1397 1398static int aps_suspend_output(void *service, audio_io_handle_t output) 1399{ 1400 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1401 if (af == 0) { 1402 ALOGW("%s: could not get AudioFlinger", __func__); 1403 return PERMISSION_DENIED; 1404 } 1405 1406 return af->suspendOutput(output); 1407} 1408 1409static int aps_restore_output(void *service, audio_io_handle_t output) 1410{ 1411 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1412 if (af == 0) { 1413 ALOGW("%s: could not get AudioFlinger", __func__); 1414 return PERMISSION_DENIED; 1415 } 1416 1417 return af->restoreOutput(output); 1418} 1419 1420// deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored 1421static audio_io_handle_t aps_open_input(void *service, 1422 audio_devices_t *pDevices, 1423 uint32_t *pSamplingRate, 1424 audio_format_t *pFormat, 1425 audio_channel_mask_t *pChannelMask, 1426 audio_in_acoustics_t acoustics) 1427{ 1428 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1429 if (af == 0) { 1430 ALOGW("%s: could not get AudioFlinger", __func__); 1431 return 0; 1432 } 1433 1434 return af->openInput((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask); 1435} 1436 1437static audio_io_handle_t aps_open_input_on_module(void *service, 1438 audio_module_handle_t module, 1439 audio_devices_t *pDevices, 1440 uint32_t *pSamplingRate, 1441 audio_format_t *pFormat, 1442 audio_channel_mask_t *pChannelMask) 1443{ 1444 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1445 if (af == 0) { 1446 ALOGW("%s: could not get AudioFlinger", __func__); 1447 return 0; 1448 } 1449 1450 return af->openInput(module, pDevices, pSamplingRate, pFormat, pChannelMask); 1451} 1452 1453static int aps_close_input(void *service, audio_io_handle_t input) 1454{ 1455 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1456 if (af == 0) 1457 return PERMISSION_DENIED; 1458 1459 return af->closeInput(input); 1460} 1461 1462static int aps_set_stream_output(void *service, audio_stream_type_t stream, 1463 audio_io_handle_t output) 1464{ 1465 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1466 if (af == 0) 1467 return PERMISSION_DENIED; 1468 1469 return af->setStreamOutput(stream, output); 1470} 1471 1472static int aps_move_effects(void *service, int session, 1473 audio_io_handle_t src_output, 1474 audio_io_handle_t dst_output) 1475{ 1476 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1477 if (af == 0) 1478 return PERMISSION_DENIED; 1479 1480 return af->moveEffects(session, src_output, dst_output); 1481} 1482 1483static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, 1484 const char *keys) 1485{ 1486 String8 result = AudioSystem::getParameters(io_handle, String8(keys)); 1487 return strdup(result.string()); 1488} 1489 1490static void aps_set_parameters(void *service, audio_io_handle_t io_handle, 1491 const char *kv_pairs, int delay_ms) 1492{ 1493 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1494 1495 audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); 1496} 1497 1498static int aps_set_stream_volume(void *service, audio_stream_type_t stream, 1499 float volume, audio_io_handle_t output, 1500 int delay_ms) 1501{ 1502 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1503 1504 return audioPolicyService->setStreamVolume(stream, volume, output, 1505 delay_ms); 1506} 1507 1508static int aps_start_tone(void *service, audio_policy_tone_t tone, 1509 audio_stream_type_t stream) 1510{ 1511 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1512 1513 return audioPolicyService->startTone(tone, stream); 1514} 1515 1516static int aps_stop_tone(void *service) 1517{ 1518 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1519 1520 return audioPolicyService->stopTone(); 1521} 1522 1523static int aps_set_voice_volume(void *service, float volume, int delay_ms) 1524{ 1525 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1526 1527 return audioPolicyService->setVoiceVolume(volume, delay_ms); 1528} 1529 1530}; // extern "C" 1531 1532namespace { 1533 struct audio_policy_service_ops aps_ops = { 1534 open_output : aps_open_output, 1535 open_duplicate_output : aps_open_dup_output, 1536 close_output : aps_close_output, 1537 suspend_output : aps_suspend_output, 1538 restore_output : aps_restore_output, 1539 open_input : aps_open_input, 1540 close_input : aps_close_input, 1541 set_stream_volume : aps_set_stream_volume, 1542 set_stream_output : aps_set_stream_output, 1543 set_parameters : aps_set_parameters, 1544 get_parameters : aps_get_parameters, 1545 start_tone : aps_start_tone, 1546 stop_tone : aps_stop_tone, 1547 set_voice_volume : aps_set_voice_volume, 1548 move_effects : aps_move_effects, 1549 load_hw_module : aps_load_hw_module, 1550 open_output_on_module : aps_open_output_on_module, 1551 open_input_on_module : aps_open_input_on_module, 1552 }; 1553}; // namespace <unnamed> 1554 1555}; // namespace android 1556