AudioPolicyService.cpp revision e53b9ead781c36e96d6b6f012ddffc93a3d80f0d
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 <cutils/properties.h> 35#include <hardware_legacy/power.h> 36#include <media/AudioEffect.h> 37#include <media/EffectsFactoryApi.h> 38 39#include <hardware/hardware.h> 40#include <system/audio.h> 41#include <system/audio_policy.h> 42#include <hardware/audio_policy.h> 43#include <audio_effects/audio_effects_conf.h> 44 45namespace android { 46 47static const char kDeadlockedString[] = "AudioPolicyService may be deadlocked\n"; 48static const char kCmdDeadlockedString[] = "AudioPolicyService command thread may be deadlocked\n"; 49 50static const int kDumpLockRetries = 50; 51static const int kDumpLockSleepUs = 20000; 52 53namespace { 54 extern struct audio_policy_service_ops aps_ops; 55}; 56 57// ---------------------------------------------------------------------------- 58 59AudioPolicyService::AudioPolicyService() 60 : BnAudioPolicyService() , mpAudioPolicyDev(NULL) , mpAudioPolicy(NULL) 61{ 62 char value[PROPERTY_VALUE_MAX]; 63 const struct hw_module_t *module; 64 int forced_val; 65 int rc; 66 67 Mutex::Autolock _l(mLock); 68 69 // start tone playback thread 70 mTonePlaybackThread = new AudioCommandThread(String8("")); 71 // start audio commands thread 72 mAudioCommandThread = new AudioCommandThread(String8("ApmCommand")); 73 74 /* instantiate the audio policy manager */ 75 rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module); 76 if (rc) 77 return; 78 79 rc = audio_policy_dev_open(module, &mpAudioPolicyDev); 80 ALOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc)); 81 if (rc) 82 return; 83 84 rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this, 85 &mpAudioPolicy); 86 ALOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc)); 87 if (rc) 88 return; 89 90 rc = mpAudioPolicy->init_check(mpAudioPolicy); 91 ALOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc)); 92 if (rc) 93 return; 94 95 property_get("ro.camera.sound.forced", value, "0"); 96 forced_val = strtol(value, NULL, 0); 97 mpAudioPolicy->set_can_mute_enforced_audible(mpAudioPolicy, !forced_val); 98 99 ALOGI("Loaded audio policy from %s (%s)", module->name, module->id); 100 101 // load audio pre processing modules 102 if (access(AUDIO_EFFECT_VENDOR_CONFIG_FILE, R_OK) == 0) { 103 loadPreProcessorConfig(AUDIO_EFFECT_VENDOR_CONFIG_FILE); 104 } else if (access(AUDIO_EFFECT_DEFAULT_CONFIG_FILE, R_OK) == 0) { 105 loadPreProcessorConfig(AUDIO_EFFECT_DEFAULT_CONFIG_FILE); 106 } 107} 108 109AudioPolicyService::~AudioPolicyService() 110{ 111 mTonePlaybackThread->exit(); 112 mTonePlaybackThread.clear(); 113 mAudioCommandThread->exit(); 114 mAudioCommandThread.clear(); 115 116 117 // release audio pre processing resources 118 for (size_t i = 0; i < mInputSources.size(); i++) { 119 delete mInputSources.valueAt(i); 120 } 121 mInputSources.clear(); 122 123 for (size_t i = 0; i < mInputs.size(); i++) { 124 mInputs.valueAt(i)->mEffects.clear(); 125 delete mInputs.valueAt(i); 126 } 127 mInputs.clear(); 128 129 if (mpAudioPolicy != NULL && mpAudioPolicyDev != NULL) 130 mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy); 131 if (mpAudioPolicyDev != NULL) 132 audio_policy_dev_close(mpAudioPolicyDev); 133} 134 135status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device, 136 audio_policy_dev_state_t state, 137 const char *device_address) 138{ 139 if (mpAudioPolicy == NULL) { 140 return NO_INIT; 141 } 142 if (!settingsAllowed()) { 143 return PERMISSION_DENIED; 144 } 145 if (!audio_is_output_device(device) && !audio_is_input_device(device)) { 146 return BAD_VALUE; 147 } 148 if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE && 149 state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 150 return BAD_VALUE; 151 } 152 153 ALOGV("setDeviceConnectionState() tid %d", gettid()); 154 Mutex::Autolock _l(mLock); 155 return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device, 156 state, device_address); 157} 158 159audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState( 160 audio_devices_t device, 161 const char *device_address) 162{ 163 if (mpAudioPolicy == NULL) { 164 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 165 } 166 return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device, 167 device_address); 168} 169 170status_t AudioPolicyService::setPhoneState(audio_mode_t state) 171{ 172 if (mpAudioPolicy == NULL) { 173 return NO_INIT; 174 } 175 if (!settingsAllowed()) { 176 return PERMISSION_DENIED; 177 } 178 if (uint32_t(state) >= AUDIO_MODE_CNT) { 179 return BAD_VALUE; 180 } 181 182 ALOGV("setPhoneState() tid %d", gettid()); 183 184 // TODO: check if it is more appropriate to do it in platform specific policy manager 185 AudioSystem::setMode(state); 186 187 Mutex::Autolock _l(mLock); 188 mpAudioPolicy->set_phone_state(mpAudioPolicy, state); 189 return NO_ERROR; 190} 191 192status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage, 193 audio_policy_forced_cfg_t config) 194{ 195 if (mpAudioPolicy == NULL) { 196 return NO_INIT; 197 } 198 if (!settingsAllowed()) { 199 return PERMISSION_DENIED; 200 } 201 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 202 return BAD_VALUE; 203 } 204 if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) { 205 return BAD_VALUE; 206 } 207 ALOGV("setForceUse() tid %d", gettid()); 208 Mutex::Autolock _l(mLock); 209 mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config); 210 return NO_ERROR; 211} 212 213audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage) 214{ 215 if (mpAudioPolicy == NULL) { 216 return AUDIO_POLICY_FORCE_NONE; 217 } 218 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 219 return AUDIO_POLICY_FORCE_NONE; 220 } 221 return mpAudioPolicy->get_force_use(mpAudioPolicy, usage); 222} 223 224audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream, 225 uint32_t samplingRate, 226 audio_format_t format, 227 uint32_t channels, 228 audio_policy_output_flags_t flags) 229{ 230 if (mpAudioPolicy == NULL) { 231 return 0; 232 } 233 ALOGV("getOutput() tid %d", gettid()); 234 Mutex::Autolock _l(mLock); 235 return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channels, flags); 236} 237 238status_t AudioPolicyService::startOutput(audio_io_handle_t output, 239 audio_stream_type_t stream, 240 int session) 241{ 242 if (mpAudioPolicy == NULL) { 243 return NO_INIT; 244 } 245 ALOGV("startOutput() tid %d", gettid()); 246 Mutex::Autolock _l(mLock); 247 return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); 248} 249 250status_t AudioPolicyService::stopOutput(audio_io_handle_t output, 251 audio_stream_type_t stream, 252 int session) 253{ 254 if (mpAudioPolicy == NULL) { 255 return NO_INIT; 256 } 257 ALOGV("stopOutput() tid %d", gettid()); 258 Mutex::Autolock _l(mLock); 259 return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); 260} 261 262void AudioPolicyService::releaseOutput(audio_io_handle_t output) 263{ 264 if (mpAudioPolicy == NULL) { 265 return; 266 } 267 ALOGV("releaseOutput() tid %d", gettid()); 268 Mutex::Autolock _l(mLock); 269 mpAudioPolicy->release_output(mpAudioPolicy, output); 270} 271 272audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource, 273 uint32_t samplingRate, 274 audio_format_t format, 275 uint32_t channels, 276 audio_in_acoustics_t acoustics, 277 int audioSession) 278{ 279 if (mpAudioPolicy == NULL) { 280 return 0; 281 } 282 // already checked by client, but double-check in case the client wrapper is bypassed 283 if (uint32_t(inputSource) >= AUDIO_SOURCE_CNT) { 284 return 0; 285 } 286 Mutex::Autolock _l(mLock); 287 audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, 288 format, channels, acoustics); 289 290 if (input == 0) { 291 return input; 292 } 293 // create audio pre processors according to input source 294 ssize_t index = mInputSources.indexOfKey(inputSource); 295 if (index < 0) { 296 return input; 297 } 298 ssize_t idx = mInputs.indexOfKey(input); 299 InputDesc *inputDesc; 300 if (idx < 0) { 301 inputDesc = new InputDesc(audioSession); 302 mInputs.add(input, inputDesc); 303 } else { 304 inputDesc = mInputs.valueAt(idx); 305 } 306 307 Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects; 308 for (size_t i = 0; i < effects.size(); i++) { 309 EffectDesc *effect = effects[i]; 310 sp<AudioEffect> fx = new AudioEffect(NULL, &effect->mUuid, -1, 0, 0, audioSession, input); 311 status_t status = fx->initCheck(); 312 if (status != NO_ERROR && status != ALREADY_EXISTS) { 313 ALOGW("Failed to create Fx %s on input %d", effect->mName, input); 314 // fx goes out of scope and strong ref on AudioEffect is released 315 continue; 316 } 317 for (size_t j = 0; j < effect->mParams.size(); j++) { 318 fx->setParameter(effect->mParams[j]); 319 } 320 inputDesc->mEffects.add(fx); 321 } 322 setPreProcessorEnabled(inputDesc, true); 323 return input; 324} 325 326status_t AudioPolicyService::startInput(audio_io_handle_t input) 327{ 328 if (mpAudioPolicy == NULL) { 329 return NO_INIT; 330 } 331 Mutex::Autolock _l(mLock); 332 333 return mpAudioPolicy->start_input(mpAudioPolicy, input); 334} 335 336status_t AudioPolicyService::stopInput(audio_io_handle_t input) 337{ 338 if (mpAudioPolicy == NULL) { 339 return NO_INIT; 340 } 341 Mutex::Autolock _l(mLock); 342 343 return mpAudioPolicy->stop_input(mpAudioPolicy, input); 344} 345 346void AudioPolicyService::releaseInput(audio_io_handle_t input) 347{ 348 if (mpAudioPolicy == NULL) { 349 return; 350 } 351 Mutex::Autolock _l(mLock); 352 mpAudioPolicy->release_input(mpAudioPolicy, input); 353 354 ssize_t index = mInputs.indexOfKey(input); 355 if (index < 0) { 356 return; 357 } 358 InputDesc *inputDesc = mInputs.valueAt(index); 359 setPreProcessorEnabled(inputDesc, false); 360 delete inputDesc; 361 mInputs.removeItemsAt(index); 362} 363 364status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, 365 int indexMin, 366 int indexMax) 367{ 368 if (mpAudioPolicy == NULL) { 369 return NO_INIT; 370 } 371 if (!settingsAllowed()) { 372 return PERMISSION_DENIED; 373 } 374 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 375 return BAD_VALUE; 376 } 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 } 394 395 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 if (mpAudioPolicy->get_stream_volume_index_for_device) { 416 return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy, 417 stream, 418 index, 419 device); 420 } else { 421 return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); 422 } 423} 424 425uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) 426{ 427 if (mpAudioPolicy == NULL) { 428 return 0; 429 } 430 return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); 431} 432 433//audio policy: use audio_device_t appropriately 434 435audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) 436{ 437 if (mpAudioPolicy == NULL) { 438 return (audio_devices_t)0; 439 } 440 return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); 441} 442 443audio_io_handle_t AudioPolicyService::getOutputForEffect(effect_descriptor_t *desc) 444{ 445 if (mpAudioPolicy == NULL) { 446 return NO_INIT; 447 } 448 Mutex::Autolock _l(mLock); 449 return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); 450} 451 452status_t AudioPolicyService::registerEffect(effect_descriptor_t *desc, 453 audio_io_handle_t io, 454 uint32_t strategy, 455 int session, 456 int id) 457{ 458 if (mpAudioPolicy == NULL) { 459 return NO_INIT; 460 } 461 return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id); 462} 463 464status_t AudioPolicyService::unregisterEffect(int id) 465{ 466 if (mpAudioPolicy == NULL) { 467 return NO_INIT; 468 } 469 return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); 470} 471 472status_t AudioPolicyService::setEffectEnabled(int id, bool enabled) 473{ 474 if (mpAudioPolicy == NULL) { 475 return NO_INIT; 476 } 477 return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled); 478} 479 480bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 481{ 482 if (mpAudioPolicy == NULL) { 483 return 0; 484 } 485 Mutex::Autolock _l(mLock); 486 return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); 487} 488 489status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession, 490 effect_descriptor_t *descriptors, 491 uint32_t *count) 492{ 493 494 if (mpAudioPolicy == NULL) { 495 *count = 0; 496 return NO_INIT; 497 } 498 Mutex::Autolock _l(mLock); 499 status_t status = NO_ERROR; 500 501 size_t index; 502 for (index = 0; index < mInputs.size(); index++) { 503 if (mInputs.valueAt(index)->mSessionId == audioSession) { 504 break; 505 } 506 } 507 if (index == mInputs.size()) { 508 *count = 0; 509 return BAD_VALUE; 510 } 511 Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects; 512 513 for (size_t i = 0; i < effects.size(); i++) { 514 effect_descriptor_t desc = effects[i]->descriptor(); 515 if (i < *count) { 516 memcpy(descriptors + i, &desc, sizeof(effect_descriptor_t)); 517 } 518 } 519 if (effects.size() > *count) { 520 status = NO_MEMORY; 521 } 522 *count = effects.size(); 523 return status; 524} 525 526void AudioPolicyService::binderDied(const wp<IBinder>& who) { 527 ALOGW("binderDied() %p, tid %d, calling pid %d", who.unsafe_get(), gettid(), 528 IPCThreadState::self()->getCallingPid()); 529} 530 531static bool tryLock(Mutex& mutex) 532{ 533 bool locked = false; 534 for (int i = 0; i < kDumpLockRetries; ++i) { 535 if (mutex.tryLock() == NO_ERROR) { 536 locked = true; 537 break; 538 } 539 usleep(kDumpLockSleepUs); 540 } 541 return locked; 542} 543 544status_t AudioPolicyService::dumpInternals(int fd) 545{ 546 const size_t SIZE = 256; 547 char buffer[SIZE]; 548 String8 result; 549 550 snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); 551 result.append(buffer); 552 snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); 553 result.append(buffer); 554 snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); 555 result.append(buffer); 556 557 write(fd, result.string(), result.size()); 558 return NO_ERROR; 559} 560 561status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) 562{ 563 if (!dumpAllowed()) { 564 dumpPermissionDenial(fd); 565 } else { 566 bool locked = tryLock(mLock); 567 if (!locked) { 568 String8 result(kDeadlockedString); 569 write(fd, result.string(), result.size()); 570 } 571 572 dumpInternals(fd); 573 if (mAudioCommandThread != 0) { 574 mAudioCommandThread->dump(fd); 575 } 576 if (mTonePlaybackThread != 0) { 577 mTonePlaybackThread->dump(fd); 578 } 579 580 if (mpAudioPolicy) { 581 mpAudioPolicy->dump(mpAudioPolicy, fd); 582 } 583 584 if (locked) mLock.unlock(); 585 } 586 return NO_ERROR; 587} 588 589status_t AudioPolicyService::dumpPermissionDenial(int fd) 590{ 591 const size_t SIZE = 256; 592 char buffer[SIZE]; 593 String8 result; 594 snprintf(buffer, SIZE, "Permission Denial: " 595 "can't dump AudioPolicyService from pid=%d, uid=%d\n", 596 IPCThreadState::self()->getCallingPid(), 597 IPCThreadState::self()->getCallingUid()); 598 result.append(buffer); 599 write(fd, result.string(), result.size()); 600 return NO_ERROR; 601} 602 603void AudioPolicyService::setPreProcessorEnabled(const InputDesc *inputDesc, bool enabled) 604{ 605 const Vector<sp<AudioEffect> > &fxVector = inputDesc->mEffects; 606 for (size_t i = 0; i < fxVector.size(); i++) { 607 fxVector.itemAt(i)->setEnabled(enabled); 608 } 609} 610 611status_t AudioPolicyService::onTransact( 612 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 613{ 614 return BnAudioPolicyService::onTransact(code, data, reply, flags); 615} 616 617 618// ----------- AudioPolicyService::AudioCommandThread implementation ---------- 619 620AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name) 621 : Thread(false), mName(name) 622{ 623 mpToneGenerator = NULL; 624} 625 626 627AudioPolicyService::AudioCommandThread::~AudioCommandThread() 628{ 629 if (mName != "" && !mAudioCommands.isEmpty()) { 630 release_wake_lock(mName.string()); 631 } 632 mAudioCommands.clear(); 633 delete mpToneGenerator; 634} 635 636void AudioPolicyService::AudioCommandThread::onFirstRef() 637{ 638 if (mName != "") { 639 run(mName.string(), ANDROID_PRIORITY_AUDIO); 640 } else { 641 run("AudioCommand", ANDROID_PRIORITY_AUDIO); 642 } 643} 644 645bool AudioPolicyService::AudioCommandThread::threadLoop() 646{ 647 nsecs_t waitTime = INT64_MAX; 648 649 mLock.lock(); 650 while (!exitPending()) 651 { 652 while (!mAudioCommands.isEmpty()) { 653 nsecs_t curTime = systemTime(); 654 // commands are sorted by increasing time stamp: execute them from index 0 and up 655 if (mAudioCommands[0]->mTime <= curTime) { 656 AudioCommand *command = mAudioCommands[0]; 657 mAudioCommands.removeAt(0); 658 mLastCommand = *command; 659 660 switch (command->mCommand) { 661 case START_TONE: { 662 mLock.unlock(); 663 ToneData *data = (ToneData *)command->mParam; 664 ALOGV("AudioCommandThread() processing start tone %d on stream %d", 665 data->mType, data->mStream); 666 delete mpToneGenerator; 667 mpToneGenerator = new ToneGenerator(data->mStream, 1.0); 668 mpToneGenerator->startTone(data->mType); 669 delete data; 670 mLock.lock(); 671 }break; 672 case STOP_TONE: { 673 mLock.unlock(); 674 ALOGV("AudioCommandThread() processing stop tone"); 675 if (mpToneGenerator != NULL) { 676 mpToneGenerator->stopTone(); 677 delete mpToneGenerator; 678 mpToneGenerator = NULL; 679 } 680 mLock.lock(); 681 }break; 682 case SET_VOLUME: { 683 VolumeData *data = (VolumeData *)command->mParam; 684 ALOGV("AudioCommandThread() processing set volume stream %d, \ 685 volume %f, output %d", data->mStream, data->mVolume, data->mIO); 686 command->mStatus = AudioSystem::setStreamVolume(data->mStream, 687 data->mVolume, 688 data->mIO); 689 if (command->mWaitStatus) { 690 command->mCond.signal(); 691 mWaitWorkCV.wait(mLock); 692 } 693 delete data; 694 }break; 695 case SET_PARAMETERS: { 696 ParametersData *data = (ParametersData *)command->mParam; 697 ALOGV("AudioCommandThread() processing set parameters string %s, io %d", 698 data->mKeyValuePairs.string(), data->mIO); 699 command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); 700 if (command->mWaitStatus) { 701 command->mCond.signal(); 702 mWaitWorkCV.wait(mLock); 703 } 704 delete data; 705 }break; 706 case SET_VOICE_VOLUME: { 707 VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; 708 ALOGV("AudioCommandThread() processing set voice volume volume %f", 709 data->mVolume); 710 command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); 711 if (command->mWaitStatus) { 712 command->mCond.signal(); 713 mWaitWorkCV.wait(mLock); 714 } 715 delete data; 716 }break; 717 default: 718 ALOGW("AudioCommandThread() unknown command %d", command->mCommand); 719 } 720 delete command; 721 waitTime = INT64_MAX; 722 } else { 723 waitTime = mAudioCommands[0]->mTime - curTime; 724 break; 725 } 726 } 727 // release delayed commands wake lock 728 if (mName != "" && mAudioCommands.isEmpty()) { 729 release_wake_lock(mName.string()); 730 } 731 ALOGV("AudioCommandThread() going to sleep"); 732 mWaitWorkCV.waitRelative(mLock, waitTime); 733 ALOGV("AudioCommandThread() waking up"); 734 } 735 mLock.unlock(); 736 return false; 737} 738 739status_t AudioPolicyService::AudioCommandThread::dump(int fd) 740{ 741 const size_t SIZE = 256; 742 char buffer[SIZE]; 743 String8 result; 744 745 snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); 746 result.append(buffer); 747 write(fd, result.string(), result.size()); 748 749 bool locked = tryLock(mLock); 750 if (!locked) { 751 String8 result2(kCmdDeadlockedString); 752 write(fd, result2.string(), result2.size()); 753 } 754 755 snprintf(buffer, SIZE, "- Commands:\n"); 756 result = String8(buffer); 757 result.append(" Command Time Wait pParam\n"); 758 for (size_t i = 0; i < mAudioCommands.size(); i++) { 759 mAudioCommands[i]->dump(buffer, SIZE); 760 result.append(buffer); 761 } 762 result.append(" Last Command\n"); 763 mLastCommand.dump(buffer, SIZE); 764 result.append(buffer); 765 766 write(fd, result.string(), result.size()); 767 768 if (locked) mLock.unlock(); 769 770 return NO_ERROR; 771} 772 773void AudioPolicyService::AudioCommandThread::startToneCommand(ToneGenerator::tone_type type, 774 audio_stream_type_t stream) 775{ 776 AudioCommand *command = new AudioCommand(); 777 command->mCommand = START_TONE; 778 ToneData *data = new ToneData(); 779 data->mType = type; 780 data->mStream = stream; 781 command->mParam = (void *)data; 782 command->mWaitStatus = false; 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 command->mWaitStatus = false; 795 Mutex::Autolock _l(mLock); 796 insertCommand_l(command); 797 ALOGV("AudioCommandThread() adding tone stop"); 798 mWaitWorkCV.signal(); 799} 800 801status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, 802 float volume, 803 audio_io_handle_t output, 804 int delayMs) 805{ 806 status_t status = NO_ERROR; 807 808 AudioCommand *command = new AudioCommand(); 809 command->mCommand = SET_VOLUME; 810 VolumeData *data = new VolumeData(); 811 data->mStream = stream; 812 data->mVolume = volume; 813 data->mIO = output; 814 command->mParam = data; 815 if (delayMs == 0) { 816 command->mWaitStatus = true; 817 } else { 818 command->mWaitStatus = false; 819 } 820 Mutex::Autolock _l(mLock); 821 insertCommand_l(command, delayMs); 822 ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", 823 stream, volume, output); 824 mWaitWorkCV.signal(); 825 if (command->mWaitStatus) { 826 command->mCond.wait(mLock); 827 status = command->mStatus; 828 mWaitWorkCV.signal(); 829 } 830 return status; 831} 832 833status_t AudioPolicyService::AudioCommandThread::parametersCommand(audio_io_handle_t ioHandle, 834 const char *keyValuePairs, 835 int delayMs) 836{ 837 status_t status = NO_ERROR; 838 839 AudioCommand *command = new AudioCommand(); 840 command->mCommand = SET_PARAMETERS; 841 ParametersData *data = new ParametersData(); 842 data->mIO = ioHandle; 843 data->mKeyValuePairs = String8(keyValuePairs); 844 command->mParam = data; 845 if (delayMs == 0) { 846 command->mWaitStatus = true; 847 } else { 848 command->mWaitStatus = false; 849 } 850 Mutex::Autolock _l(mLock); 851 insertCommand_l(command, delayMs); 852 ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", 853 keyValuePairs, ioHandle, delayMs); 854 mWaitWorkCV.signal(); 855 if (command->mWaitStatus) { 856 command->mCond.wait(mLock); 857 status = command->mStatus; 858 mWaitWorkCV.signal(); 859 } 860 return status; 861} 862 863status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) 864{ 865 status_t status = NO_ERROR; 866 867 AudioCommand *command = new AudioCommand(); 868 command->mCommand = SET_VOICE_VOLUME; 869 VoiceVolumeData *data = new VoiceVolumeData(); 870 data->mVolume = volume; 871 command->mParam = data; 872 if (delayMs == 0) { 873 command->mWaitStatus = true; 874 } else { 875 command->mWaitStatus = false; 876 } 877 Mutex::Autolock _l(mLock); 878 insertCommand_l(command, delayMs); 879 ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); 880 mWaitWorkCV.signal(); 881 if (command->mWaitStatus) { 882 command->mCond.wait(mLock); 883 status = command->mStatus; 884 mWaitWorkCV.signal(); 885 } 886 return status; 887} 888 889// insertCommand_l() must be called with mLock held 890void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) 891{ 892 ssize_t i; // not size_t because i will count down to -1 893 Vector <AudioCommand *> removedCommands; 894 895 command->mTime = systemTime() + milliseconds(delayMs); 896 897 // acquire wake lock to make sure delayed commands are processed 898 if (mName != "" && mAudioCommands.isEmpty()) { 899 acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); 900 } 901 902 // check same pending commands with later time stamps and eliminate them 903 for (i = mAudioCommands.size()-1; i >= 0; i--) { 904 AudioCommand *command2 = mAudioCommands[i]; 905 // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands 906 if (command2->mTime <= command->mTime) break; 907 if (command2->mCommand != command->mCommand) continue; 908 909 switch (command->mCommand) { 910 case SET_PARAMETERS: { 911 ParametersData *data = (ParametersData *)command->mParam; 912 ParametersData *data2 = (ParametersData *)command2->mParam; 913 if (data->mIO != data2->mIO) break; 914 ALOGV("Comparing parameter command %s to new command %s", 915 data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); 916 AudioParameter param = AudioParameter(data->mKeyValuePairs); 917 AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); 918 for (size_t j = 0; j < param.size(); j++) { 919 String8 key; 920 String8 value; 921 param.getAt(j, key, value); 922 for (size_t k = 0; k < param2.size(); k++) { 923 String8 key2; 924 String8 value2; 925 param2.getAt(k, key2, value2); 926 if (key2 == key) { 927 param2.remove(key2); 928 ALOGV("Filtering out parameter %s", key2.string()); 929 break; 930 } 931 } 932 } 933 // if all keys have been filtered out, remove the command. 934 // otherwise, update the key value pairs 935 if (param2.size() == 0) { 936 removedCommands.add(command2); 937 } else { 938 data2->mKeyValuePairs = param2.toString(); 939 } 940 } break; 941 942 case SET_VOLUME: { 943 VolumeData *data = (VolumeData *)command->mParam; 944 VolumeData *data2 = (VolumeData *)command2->mParam; 945 if (data->mIO != data2->mIO) break; 946 if (data->mStream != data2->mStream) break; 947 ALOGV("Filtering out volume command on output %d for stream %d", 948 data->mIO, data->mStream); 949 removedCommands.add(command2); 950 } break; 951 case START_TONE: 952 case STOP_TONE: 953 default: 954 break; 955 } 956 } 957 958 // remove filtered commands 959 for (size_t j = 0; j < removedCommands.size(); j++) { 960 // removed commands always have time stamps greater than current command 961 for (size_t k = i + 1; k < mAudioCommands.size(); k++) { 962 if (mAudioCommands[k] == removedCommands[j]) { 963 ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); 964 mAudioCommands.removeAt(k); 965 break; 966 } 967 } 968 } 969 removedCommands.clear(); 970 971 // insert command at the right place according to its time stamp 972 ALOGV("inserting command: %d at index %d, num commands %d", 973 command->mCommand, (int)i+1, mAudioCommands.size()); 974 mAudioCommands.insertAt(command, i + 1); 975} 976 977void AudioPolicyService::AudioCommandThread::exit() 978{ 979 ALOGV("AudioCommandThread::exit"); 980 { 981 AutoMutex _l(mLock); 982 requestExit(); 983 mWaitWorkCV.signal(); 984 } 985 requestExitAndWait(); 986} 987 988void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) 989{ 990 snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", 991 mCommand, 992 (int)ns2s(mTime), 993 (int)ns2ms(mTime)%1000, 994 mWaitStatus, 995 mParam); 996} 997 998/******* helpers for the service_ops callbacks defined below *********/ 999void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, 1000 const char *keyValuePairs, 1001 int delayMs) 1002{ 1003 mAudioCommandThread->parametersCommand(ioHandle, keyValuePairs, 1004 delayMs); 1005} 1006 1007int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, 1008 float volume, 1009 audio_io_handle_t output, 1010 int delayMs) 1011{ 1012 return (int)mAudioCommandThread->volumeCommand(stream, volume, 1013 output, delayMs); 1014} 1015 1016int AudioPolicyService::startTone(audio_policy_tone_t tone, 1017 audio_stream_type_t stream) 1018{ 1019 if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) 1020 ALOGE("startTone: illegal tone requested (%d)", tone); 1021 if (stream != AUDIO_STREAM_VOICE_CALL) 1022 ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, 1023 tone); 1024 mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, 1025 AUDIO_STREAM_VOICE_CALL); 1026 return 0; 1027} 1028 1029int AudioPolicyService::stopTone() 1030{ 1031 mTonePlaybackThread->stopToneCommand(); 1032 return 0; 1033} 1034 1035int AudioPolicyService::setVoiceVolume(float volume, int delayMs) 1036{ 1037 return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); 1038} 1039 1040// ---------------------------------------------------------------------------- 1041// Audio pre-processing configuration 1042// ---------------------------------------------------------------------------- 1043 1044/*static*/ const char * const AudioPolicyService::kInputSourceNames[AUDIO_SOURCE_CNT -1] = { 1045 MIC_SRC_TAG, 1046 VOICE_UL_SRC_TAG, 1047 VOICE_DL_SRC_TAG, 1048 VOICE_CALL_SRC_TAG, 1049 CAMCORDER_SRC_TAG, 1050 VOICE_REC_SRC_TAG, 1051 VOICE_COMM_SRC_TAG 1052}; 1053 1054// returns the audio_source_t enum corresponding to the input source name or 1055// AUDIO_SOURCE_CNT is no match found 1056audio_source_t AudioPolicyService::inputSourceNameToEnum(const char *name) 1057{ 1058 int i; 1059 for (i = AUDIO_SOURCE_MIC; i < AUDIO_SOURCE_CNT; i++) { 1060 if (strcmp(name, kInputSourceNames[i - AUDIO_SOURCE_MIC]) == 0) { 1061 ALOGV("inputSourceNameToEnum found source %s %d", name, i); 1062 break; 1063 } 1064 } 1065 return (audio_source_t)i; 1066} 1067 1068size_t AudioPolicyService::growParamSize(char *param, 1069 size_t size, 1070 size_t *curSize, 1071 size_t *totSize) 1072{ 1073 // *curSize is at least sizeof(effect_param_t) + 2 * sizeof(int) 1074 size_t pos = ((*curSize - 1 ) / size + 1) * size; 1075 1076 if (pos + size > *totSize) { 1077 while (pos + size > *totSize) { 1078 *totSize += ((*totSize + 7) / 8) * 4; 1079 } 1080 param = (char *)realloc(param, *totSize); 1081 } 1082 *curSize = pos + size; 1083 return pos; 1084} 1085 1086size_t AudioPolicyService::readParamValue(cnode *node, 1087 char *param, 1088 size_t *curSize, 1089 size_t *totSize) 1090{ 1091 if (strncmp(node->name, SHORT_TAG, sizeof(SHORT_TAG) + 1) == 0) { 1092 size_t pos = growParamSize(param, sizeof(short), curSize, totSize); 1093 *(short *)((char *)param + pos) = (short)atoi(node->value); 1094 ALOGV("readParamValue() reading short %d", *(short *)((char *)param + pos)); 1095 return sizeof(short); 1096 } else if (strncmp(node->name, INT_TAG, sizeof(INT_TAG) + 1) == 0) { 1097 size_t pos = growParamSize(param, sizeof(int), curSize, totSize); 1098 *(int *)((char *)param + pos) = atoi(node->value); 1099 ALOGV("readParamValue() reading int %d", *(int *)((char *)param + pos)); 1100 return sizeof(int); 1101 } else if (strncmp(node->name, FLOAT_TAG, sizeof(FLOAT_TAG) + 1) == 0) { 1102 size_t pos = growParamSize(param, sizeof(float), curSize, totSize); 1103 *(float *)((char *)param + pos) = (float)atof(node->value); 1104 ALOGV("readParamValue() reading float %f",*(float *)((char *)param + pos)); 1105 return sizeof(float); 1106 } else if (strncmp(node->name, BOOL_TAG, sizeof(BOOL_TAG) + 1) == 0) { 1107 size_t pos = growParamSize(param, sizeof(bool), curSize, totSize); 1108 if (strncmp(node->value, "false", strlen("false") + 1) == 0) { 1109 *(bool *)((char *)param + pos) = false; 1110 } else { 1111 *(bool *)((char *)param + pos) = true; 1112 } 1113 ALOGV("readParamValue() reading bool %s",*(bool *)((char *)param + pos) ? "true" : "false"); 1114 return sizeof(bool); 1115 } else if (strncmp(node->name, STRING_TAG, sizeof(STRING_TAG) + 1) == 0) { 1116 size_t len = strnlen(node->value, EFFECT_STRING_LEN_MAX); 1117 if (*curSize + len + 1 > *totSize) { 1118 *totSize = *curSize + len + 1; 1119 param = (char *)realloc(param, *totSize); 1120 } 1121 strncpy(param + *curSize, node->value, len); 1122 *curSize += len; 1123 param[*curSize] = '\0'; 1124 ALOGV("readParamValue() reading string %s", param + *curSize - len); 1125 return len; 1126 } 1127 ALOGW("readParamValue() unknown param type %s", node->name); 1128 return 0; 1129} 1130 1131effect_param_t *AudioPolicyService::loadEffectParameter(cnode *root) 1132{ 1133 cnode *param; 1134 cnode *value; 1135 size_t curSize = sizeof(effect_param_t); 1136 size_t totSize = sizeof(effect_param_t) + 2 * sizeof(int); 1137 effect_param_t *fx_param = (effect_param_t *)malloc(totSize); 1138 1139 param = config_find(root, PARAM_TAG); 1140 value = config_find(root, VALUE_TAG); 1141 if (param == NULL && value == NULL) { 1142 // try to parse simple parameter form {int int} 1143 param = root->first_child; 1144 if (param != NULL) { 1145 // Note: that a pair of random strings is read as 0 0 1146 int *ptr = (int *)fx_param->data; 1147 int *ptr2 = (int *)((char *)param + sizeof(effect_param_t)); 1148 ALOGW("loadEffectParameter() ptr %p ptr2 %p", ptr, ptr2); 1149 *ptr++ = atoi(param->name); 1150 *ptr = atoi(param->value); 1151 fx_param->psize = sizeof(int); 1152 fx_param->vsize = sizeof(int); 1153 return fx_param; 1154 } 1155 } 1156 if (param == NULL || value == NULL) { 1157 ALOGW("loadEffectParameter() invalid parameter description %s", root->name); 1158 goto error; 1159 } 1160 1161 fx_param->psize = 0; 1162 param = param->first_child; 1163 while (param) { 1164 ALOGV("loadEffectParameter() reading param of type %s", param->name); 1165 size_t size = readParamValue(param, (char *)fx_param, &curSize, &totSize); 1166 if (size == 0) { 1167 goto error; 1168 } 1169 fx_param->psize += size; 1170 param = param->next; 1171 } 1172 1173 // align start of value field on 32 bit boundary 1174 curSize = ((curSize - 1 ) / sizeof(int) + 1) * sizeof(int); 1175 1176 fx_param->vsize = 0; 1177 value = value->first_child; 1178 while (value) { 1179 ALOGV("loadEffectParameter() reading value of type %s", value->name); 1180 size_t size = readParamValue(value, (char *)fx_param, &curSize, &totSize); 1181 if (size == 0) { 1182 goto error; 1183 } 1184 fx_param->vsize += size; 1185 value = value->next; 1186 } 1187 1188 return fx_param; 1189 1190error: 1191 delete fx_param; 1192 return NULL; 1193} 1194 1195void AudioPolicyService::loadEffectParameters(cnode *root, Vector <effect_param_t *>& params) 1196{ 1197 cnode *node = root->first_child; 1198 while (node) { 1199 ALOGV("loadEffectParameters() loading param %s", node->name); 1200 effect_param_t *param = loadEffectParameter(node); 1201 if (param == NULL) { 1202 node = node->next; 1203 continue; 1204 } 1205 params.add(param); 1206 node = node->next; 1207 } 1208} 1209 1210AudioPolicyService::InputSourceDesc *AudioPolicyService::loadInputSource( 1211 cnode *root, 1212 const Vector <EffectDesc *>& effects) 1213{ 1214 cnode *node = root->first_child; 1215 if (node == NULL) { 1216 ALOGW("loadInputSource() empty element %s", root->name); 1217 return NULL; 1218 } 1219 InputSourceDesc *source = new InputSourceDesc(); 1220 while (node) { 1221 size_t i; 1222 for (i = 0; i < effects.size(); i++) { 1223 if (strncmp(effects[i]->mName, node->name, EFFECT_STRING_LEN_MAX) == 0) { 1224 ALOGV("loadInputSource() found effect %s in list", node->name); 1225 break; 1226 } 1227 } 1228 if (i == effects.size()) { 1229 ALOGV("loadInputSource() effect %s not in list", node->name); 1230 node = node->next; 1231 continue; 1232 } 1233 EffectDesc *effect = new EffectDesc(*effects[i]); // deep copy 1234 loadEffectParameters(node, effect->mParams); 1235 ALOGV("loadInputSource() adding effect %s uuid %08x", effect->mName, effect->mUuid.timeLow); 1236 source->mEffects.add(effect); 1237 node = node->next; 1238 } 1239 if (source->mEffects.size() == 0) { 1240 ALOGW("loadInputSource() no valid effects found in source %s", root->name); 1241 delete source; 1242 return NULL; 1243 } 1244 return source; 1245} 1246 1247status_t AudioPolicyService::loadInputSources(cnode *root, const Vector <EffectDesc *>& effects) 1248{ 1249 cnode *node = config_find(root, PREPROCESSING_TAG); 1250 if (node == NULL) { 1251 return -ENOENT; 1252 } 1253 node = node->first_child; 1254 while (node) { 1255 audio_source_t source = inputSourceNameToEnum(node->name); 1256 if (source == AUDIO_SOURCE_CNT) { 1257 ALOGW("loadInputSources() invalid input source %s", node->name); 1258 node = node->next; 1259 continue; 1260 } 1261 ALOGV("loadInputSources() loading input source %s", node->name); 1262 InputSourceDesc *desc = loadInputSource(node, effects); 1263 if (desc == NULL) { 1264 node = node->next; 1265 continue; 1266 } 1267 mInputSources.add(source, desc); 1268 node = node->next; 1269 } 1270 return NO_ERROR; 1271} 1272 1273AudioPolicyService::EffectDesc *AudioPolicyService::loadEffect(cnode *root) 1274{ 1275 cnode *node = config_find(root, UUID_TAG); 1276 if (node == NULL) { 1277 return NULL; 1278 } 1279 effect_uuid_t uuid; 1280 if (AudioEffect::stringToGuid(node->value, &uuid) != NO_ERROR) { 1281 ALOGW("loadEffect() invalid uuid %s", node->value); 1282 return NULL; 1283 } 1284 return new EffectDesc(root->name, uuid); 1285} 1286 1287status_t AudioPolicyService::loadEffects(cnode *root, Vector <EffectDesc *>& effects) 1288{ 1289 cnode *node = config_find(root, EFFECTS_TAG); 1290 if (node == NULL) { 1291 return -ENOENT; 1292 } 1293 node = node->first_child; 1294 while (node) { 1295 ALOGV("loadEffects() loading effect %s", node->name); 1296 EffectDesc *effect = loadEffect(node); 1297 if (effect == NULL) { 1298 node = node->next; 1299 continue; 1300 } 1301 effects.add(effect); 1302 node = node->next; 1303 } 1304 return NO_ERROR; 1305} 1306 1307status_t AudioPolicyService::loadPreProcessorConfig(const char *path) 1308{ 1309 cnode *root; 1310 char *data; 1311 1312 data = (char *)load_file(path, NULL); 1313 if (data == NULL) { 1314 return -ENODEV; 1315 } 1316 root = config_node("", ""); 1317 config_load(root, data); 1318 1319 Vector <EffectDesc *> effects; 1320 loadEffects(root, effects); 1321 loadInputSources(root, effects); 1322 1323 config_free(root); 1324 free(root); 1325 free(data); 1326 1327 return NO_ERROR; 1328} 1329 1330/* implementation of the interface to the policy manager */ 1331extern "C" { 1332 1333static audio_io_handle_t aps_open_output(void *service, 1334 uint32_t *pDevices, 1335 uint32_t *pSamplingRate, 1336 audio_format_t *pFormat, 1337 uint32_t *pChannels, 1338 uint32_t *pLatencyMs, 1339 audio_policy_output_flags_t flags) 1340{ 1341 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1342 if (af == 0) { 1343 ALOGW("%s: could not get AudioFlinger", __func__); 1344 return 0; 1345 } 1346 1347 return af->openOutput(pDevices, pSamplingRate, pFormat, pChannels, 1348 pLatencyMs, flags); 1349} 1350 1351static audio_io_handle_t aps_open_dup_output(void *service, 1352 audio_io_handle_t output1, 1353 audio_io_handle_t output2) 1354{ 1355 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1356 if (af == 0) { 1357 ALOGW("%s: could not get AudioFlinger", __func__); 1358 return 0; 1359 } 1360 return af->openDuplicateOutput(output1, output2); 1361} 1362 1363static int aps_close_output(void *service, audio_io_handle_t output) 1364{ 1365 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1366 if (af == 0) 1367 return PERMISSION_DENIED; 1368 1369 return af->closeOutput(output); 1370} 1371 1372static int aps_suspend_output(void *service, audio_io_handle_t output) 1373{ 1374 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1375 if (af == 0) { 1376 ALOGW("%s: could not get AudioFlinger", __func__); 1377 return PERMISSION_DENIED; 1378 } 1379 1380 return af->suspendOutput(output); 1381} 1382 1383static int aps_restore_output(void *service, audio_io_handle_t output) 1384{ 1385 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1386 if (af == 0) { 1387 ALOGW("%s: could not get AudioFlinger", __func__); 1388 return PERMISSION_DENIED; 1389 } 1390 1391 return af->restoreOutput(output); 1392} 1393 1394static audio_io_handle_t aps_open_input(void *service, 1395 uint32_t *pDevices, 1396 uint32_t *pSamplingRate, 1397 audio_format_t *pFormat, 1398 uint32_t *pChannels, 1399 audio_in_acoustics_t acoustics) 1400{ 1401 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1402 if (af == 0) { 1403 ALOGW("%s: could not get AudioFlinger", __func__); 1404 return 0; 1405 } 1406 1407 return af->openInput(pDevices, pSamplingRate, pFormat, pChannels, 1408 acoustics); 1409} 1410 1411static int aps_close_input(void *service, audio_io_handle_t input) 1412{ 1413 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1414 if (af == 0) 1415 return PERMISSION_DENIED; 1416 1417 return af->closeInput(input); 1418} 1419 1420static int aps_set_stream_output(void *service, audio_stream_type_t stream, 1421 audio_io_handle_t output) 1422{ 1423 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1424 if (af == 0) 1425 return PERMISSION_DENIED; 1426 1427 return af->setStreamOutput(stream, output); 1428} 1429 1430static int aps_move_effects(void *service, int session, 1431 audio_io_handle_t src_output, 1432 audio_io_handle_t dst_output) 1433{ 1434 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1435 if (af == 0) 1436 return PERMISSION_DENIED; 1437 1438 return af->moveEffects(session, src_output, dst_output); 1439} 1440 1441static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, 1442 const char *keys) 1443{ 1444 String8 result = AudioSystem::getParameters(io_handle, String8(keys)); 1445 return strdup(result.string()); 1446} 1447 1448static void aps_set_parameters(void *service, audio_io_handle_t io_handle, 1449 const char *kv_pairs, int delay_ms) 1450{ 1451 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1452 1453 audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); 1454} 1455 1456static int aps_set_stream_volume(void *service, audio_stream_type_t stream, 1457 float volume, audio_io_handle_t output, 1458 int delay_ms) 1459{ 1460 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1461 1462 return audioPolicyService->setStreamVolume(stream, volume, output, 1463 delay_ms); 1464} 1465 1466static int aps_start_tone(void *service, audio_policy_tone_t tone, 1467 audio_stream_type_t stream) 1468{ 1469 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1470 1471 return audioPolicyService->startTone(tone, stream); 1472} 1473 1474static int aps_stop_tone(void *service) 1475{ 1476 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1477 1478 return audioPolicyService->stopTone(); 1479} 1480 1481static int aps_set_voice_volume(void *service, float volume, int delay_ms) 1482{ 1483 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1484 1485 return audioPolicyService->setVoiceVolume(volume, delay_ms); 1486} 1487 1488}; // extern "C" 1489 1490namespace { 1491 struct audio_policy_service_ops aps_ops = { 1492 open_output : aps_open_output, 1493 open_duplicate_output : aps_open_dup_output, 1494 close_output : aps_close_output, 1495 suspend_output : aps_suspend_output, 1496 restore_output : aps_restore_output, 1497 open_input : aps_open_input, 1498 close_input : aps_close_input, 1499 set_stream_volume : aps_set_stream_volume, 1500 set_stream_output : aps_set_stream_output, 1501 set_parameters : aps_set_parameters, 1502 get_parameters : aps_get_parameters, 1503 start_tone : aps_start_tone, 1504 stop_tone : aps_stop_tone, 1505 set_voice_volume : aps_set_voice_volume, 1506 move_effects : aps_move_effects, 1507 }; 1508}; // namespace <unnamed> 1509 1510}; // namespace android 1511