AudioPolicyService.cpp revision 0696400a6bb9abbed62b3b9c6aa105495dc600a2
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 <cutils/properties.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 kDumpLockSleep = 20000; 51 52static bool checkPermission() { 53 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 54 bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")); 55 if (!ok) ALOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS"); 56 return ok; 57} 58 59namespace { 60 extern struct audio_policy_service_ops aps_ops; 61}; 62 63// ---------------------------------------------------------------------------- 64 65AudioPolicyService::AudioPolicyService() 66 : BnAudioPolicyService() , mpAudioPolicyDev(NULL) , mpAudioPolicy(NULL) 67{ 68 char value[PROPERTY_VALUE_MAX]; 69 const struct hw_module_t *module; 70 int forced_val; 71 int rc; 72 73 Mutex::Autolock _l(mLock); 74 75 // start tone playback thread 76 mTonePlaybackThread = new AudioCommandThread(String8("")); 77 // start audio commands thread 78 mAudioCommandThread = new AudioCommandThread(String8("ApmCommandThread")); 79 80 /* instantiate the audio policy manager */ 81 rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module); 82 if (rc) 83 return; 84 85 rc = audio_policy_dev_open(module, &mpAudioPolicyDev); 86 ALOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc)); 87 if (rc) 88 return; 89 90 rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this, 91 &mpAudioPolicy); 92 ALOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc)); 93 if (rc) 94 return; 95 96 rc = mpAudioPolicy->init_check(mpAudioPolicy); 97 ALOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc)); 98 if (rc) 99 return; 100 101 property_get("ro.camera.sound.forced", value, "0"); 102 forced_val = strtol(value, NULL, 0); 103 mpAudioPolicy->set_can_mute_enforced_audible(mpAudioPolicy, !forced_val); 104 105 ALOGI("Loaded audio policy from %s (%s)", module->name, module->id); 106 107 // load audio pre processing modules 108 if (access(AUDIO_EFFECT_VENDOR_CONFIG_FILE, R_OK) == 0) { 109 loadPreProcessorConfig(AUDIO_EFFECT_VENDOR_CONFIG_FILE); 110 } else if (access(AUDIO_EFFECT_DEFAULT_CONFIG_FILE, R_OK) == 0) { 111 loadPreProcessorConfig(AUDIO_EFFECT_DEFAULT_CONFIG_FILE); 112 } 113} 114 115AudioPolicyService::~AudioPolicyService() 116{ 117 mTonePlaybackThread->exit(); 118 mTonePlaybackThread.clear(); 119 mAudioCommandThread->exit(); 120 mAudioCommandThread.clear(); 121 122 123 // release audio pre processing resources 124 for (size_t i = 0; i < mInputSources.size(); i++) { 125 InputSourceDesc *source = mInputSources.valueAt(i); 126 Vector <EffectDesc *> effects = source->mEffects; 127 for (size_t j = 0; j < effects.size(); j++) { 128 delete effects[j]->mName; 129 Vector <effect_param_t *> params = effects[j]->mParams; 130 for (size_t k = 0; k < params.size(); k++) { 131 delete params[k]; 132 } 133 params.clear(); 134 delete effects[j]; 135 } 136 effects.clear(); 137 delete source; 138 } 139 mInputSources.clear(); 140 141 for (size_t i = 0; i < mInputs.size(); i++) { 142 mInputs.valueAt(i)->mEffects.clear(); 143 delete mInputs.valueAt(i); 144 } 145 mInputs.clear(); 146 147 if (mpAudioPolicy && mpAudioPolicyDev) 148 mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy); 149 if (mpAudioPolicyDev) 150 audio_policy_dev_close(mpAudioPolicyDev); 151} 152 153status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device, 154 audio_policy_dev_state_t state, 155 const char *device_address) 156{ 157 if (mpAudioPolicy == NULL) { 158 return NO_INIT; 159 } 160 if (!checkPermission()) { 161 return PERMISSION_DENIED; 162 } 163 if (!audio_is_output_device(device) && !audio_is_input_device(device)) { 164 return BAD_VALUE; 165 } 166 if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE && 167 state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { 168 return BAD_VALUE; 169 } 170 171 ALOGV("setDeviceConnectionState() tid %d", gettid()); 172 Mutex::Autolock _l(mLock); 173 return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device, 174 state, device_address); 175} 176 177audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState( 178 audio_devices_t device, 179 const char *device_address) 180{ 181 if (mpAudioPolicy == NULL) { 182 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 183 } 184 return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device, 185 device_address); 186} 187 188status_t AudioPolicyService::setPhoneState(audio_mode_t state) 189{ 190 if (mpAudioPolicy == NULL) { 191 return NO_INIT; 192 } 193 if (!checkPermission()) { 194 return PERMISSION_DENIED; 195 } 196 if (uint32_t(state) >= AUDIO_MODE_CNT) { 197 return BAD_VALUE; 198 } 199 200 ALOGV("setPhoneState() tid %d", gettid()); 201 202 // TODO: check if it is more appropriate to do it in platform specific policy manager 203 AudioSystem::setMode(state); 204 205 Mutex::Autolock _l(mLock); 206 mpAudioPolicy->set_phone_state(mpAudioPolicy, state); 207 return NO_ERROR; 208} 209 210status_t AudioPolicyService::setRingerMode(uint32_t mode, uint32_t mask) 211{ 212 if (mpAudioPolicy == NULL) { 213 return NO_INIT; 214 } 215 if (!checkPermission()) { 216 return PERMISSION_DENIED; 217 } 218 219 mpAudioPolicy->set_ringer_mode(mpAudioPolicy, mode, mask); 220 return NO_ERROR; 221} 222 223status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage, 224 audio_policy_forced_cfg_t config) 225{ 226 if (mpAudioPolicy == NULL) { 227 return NO_INIT; 228 } 229 if (!checkPermission()) { 230 return PERMISSION_DENIED; 231 } 232 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 233 return BAD_VALUE; 234 } 235 if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) { 236 return BAD_VALUE; 237 } 238 ALOGV("setForceUse() tid %d", gettid()); 239 Mutex::Autolock _l(mLock); 240 mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config); 241 return NO_ERROR; 242} 243 244audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage) 245{ 246 if (mpAudioPolicy == NULL) { 247 return AUDIO_POLICY_FORCE_NONE; 248 } 249 if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { 250 return AUDIO_POLICY_FORCE_NONE; 251 } 252 return mpAudioPolicy->get_force_use(mpAudioPolicy, usage); 253} 254 255audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream, 256 uint32_t samplingRate, 257 uint32_t format, 258 uint32_t channels, 259 audio_policy_output_flags_t flags) 260{ 261 if (mpAudioPolicy == NULL) { 262 return 0; 263 } 264 ALOGV("getOutput() tid %d", gettid()); 265 Mutex::Autolock _l(mLock); 266 return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channels, flags); 267} 268 269status_t AudioPolicyService::startOutput(audio_io_handle_t output, 270 audio_stream_type_t stream, 271 int session) 272{ 273 if (mpAudioPolicy == NULL) { 274 return NO_INIT; 275 } 276 ALOGV("startOutput() tid %d", gettid()); 277 Mutex::Autolock _l(mLock); 278 return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); 279} 280 281status_t AudioPolicyService::stopOutput(audio_io_handle_t output, 282 audio_stream_type_t stream, 283 int session) 284{ 285 if (mpAudioPolicy == NULL) { 286 return NO_INIT; 287 } 288 ALOGV("stopOutput() tid %d", gettid()); 289 Mutex::Autolock _l(mLock); 290 return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); 291} 292 293void AudioPolicyService::releaseOutput(audio_io_handle_t output) 294{ 295 if (mpAudioPolicy == NULL) { 296 return; 297 } 298 ALOGV("releaseOutput() tid %d", gettid()); 299 Mutex::Autolock _l(mLock); 300 mpAudioPolicy->release_output(mpAudioPolicy, output); 301} 302 303audio_io_handle_t AudioPolicyService::getInput(int inputSource, 304 uint32_t samplingRate, 305 uint32_t format, 306 uint32_t channels, 307 audio_in_acoustics_t acoustics, 308 int audioSession) 309{ 310 if (mpAudioPolicy == NULL) { 311 return 0; 312 } 313 Mutex::Autolock _l(mLock); 314 audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, 315 format, channels, acoustics); 316 317 if (input == 0) { 318 return input; 319 } 320 // create audio pre processors according to input source 321 ssize_t index = mInputSources.indexOfKey((audio_source_t)inputSource); 322 if (index < 0) { 323 return input; 324 } 325 ssize_t idx = mInputs.indexOfKey(input); 326 InputDesc *inputDesc; 327 if (idx < 0) { 328 inputDesc = new InputDesc(); 329 inputDesc->mSessionId = audioSession; 330 mInputs.add(input, inputDesc); 331 } else { 332 inputDesc = mInputs.valueAt(idx); 333 } 334 335 Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects; 336 for (size_t i = 0; i < effects.size(); i++) { 337 EffectDesc *effect = effects[i]; 338 sp<AudioEffect> fx = new AudioEffect(NULL, &effect->mUuid, -1, 0, 0, audioSession, input); 339 status_t status = fx->initCheck(); 340 if (status != NO_ERROR && status != ALREADY_EXISTS) { 341 ALOGW("Failed to create Fx %s on input %d", effect->mName, input); 342 // fx goes out of scope and strong ref on AudioEffect is released 343 continue; 344 } 345 for (size_t j = 0; j < effect->mParams.size(); j++) { 346 fx->setParameter(effect->mParams[j]); 347 } 348 inputDesc->mEffects.add(fx); 349 } 350 setPreProcessorEnabled(inputDesc, true); 351 return input; 352} 353 354status_t AudioPolicyService::startInput(audio_io_handle_t input) 355{ 356 if (mpAudioPolicy == NULL) { 357 return NO_INIT; 358 } 359 Mutex::Autolock _l(mLock); 360 361 return mpAudioPolicy->start_input(mpAudioPolicy, input); 362} 363 364status_t AudioPolicyService::stopInput(audio_io_handle_t input) 365{ 366 if (mpAudioPolicy == NULL) { 367 return NO_INIT; 368 } 369 Mutex::Autolock _l(mLock); 370 371 return mpAudioPolicy->stop_input(mpAudioPolicy, input); 372} 373 374void AudioPolicyService::releaseInput(audio_io_handle_t input) 375{ 376 if (mpAudioPolicy == NULL) { 377 return; 378 } 379 Mutex::Autolock _l(mLock); 380 mpAudioPolicy->release_input(mpAudioPolicy, input); 381 382 ssize_t index = mInputs.indexOfKey(input); 383 if (index < 0) { 384 return; 385 } 386 InputDesc *inputDesc = mInputs.valueAt(index); 387 setPreProcessorEnabled(inputDesc, false); 388 inputDesc->mEffects.clear(); 389 delete inputDesc; 390 mInputs.removeItemsAt(index); 391} 392 393status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, 394 int indexMin, 395 int indexMax) 396{ 397 if (mpAudioPolicy == NULL) { 398 return NO_INIT; 399 } 400 if (!checkPermission()) { 401 return PERMISSION_DENIED; 402 } 403 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 404 return BAD_VALUE; 405 } 406 mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax); 407 return NO_ERROR; 408} 409 410status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream, int index) 411{ 412 if (mpAudioPolicy == NULL) { 413 return NO_INIT; 414 } 415 if (!checkPermission()) { 416 return PERMISSION_DENIED; 417 } 418 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 419 return BAD_VALUE; 420 } 421 422 return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index); 423} 424 425status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream, int *index) 426{ 427 if (mpAudioPolicy == NULL) { 428 return NO_INIT; 429 } 430 if (uint32_t(stream) >= AUDIO_STREAM_CNT) { 431 return BAD_VALUE; 432 } 433 return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); 434} 435 436uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) 437{ 438 if (mpAudioPolicy == NULL) { 439 return 0; 440 } 441 return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); 442} 443 444uint32_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) 445{ 446 if (mpAudioPolicy == NULL) { 447 return 0; 448 } 449 return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); 450} 451 452audio_io_handle_t AudioPolicyService::getOutputForEffect(effect_descriptor_t *desc) 453{ 454 if (mpAudioPolicy == NULL) { 455 return NO_INIT; 456 } 457 Mutex::Autolock _l(mLock); 458 return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); 459} 460 461status_t AudioPolicyService::registerEffect(effect_descriptor_t *desc, 462 audio_io_handle_t io, 463 uint32_t strategy, 464 int session, 465 int id) 466{ 467 if (mpAudioPolicy == NULL) { 468 return NO_INIT; 469 } 470 return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id); 471} 472 473status_t AudioPolicyService::unregisterEffect(int id) 474{ 475 if (mpAudioPolicy == NULL) { 476 return NO_INIT; 477 } 478 return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); 479} 480 481status_t AudioPolicyService::setEffectEnabled(int id, bool enabled) 482{ 483 if (mpAudioPolicy == NULL) { 484 return NO_INIT; 485 } 486 return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled); 487} 488 489bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 490{ 491 if (mpAudioPolicy == NULL) { 492 return 0; 493 } 494 Mutex::Autolock _l(mLock); 495 return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); 496} 497 498status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession, 499 effect_descriptor_t *descriptors, 500 uint32_t *count) 501{ 502 503 if (mpAudioPolicy == NULL) { 504 *count = 0; 505 return NO_INIT; 506 } 507 Mutex::Autolock _l(mLock); 508 status_t status = NO_ERROR; 509 510 size_t index; 511 for (index = 0; index < mInputs.size(); index++) { 512 if (mInputs.valueAt(index)->mSessionId == audioSession) { 513 break; 514 } 515 } 516 if (index == mInputs.size()) { 517 *count = 0; 518 return BAD_VALUE; 519 } 520 Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects; 521 522 for (size_t i = 0; i < effects.size(); i++) { 523 effect_descriptor_t desc = effects[i]->descriptor(); 524 if (i < *count) { 525 memcpy(descriptors + i, &desc, sizeof(effect_descriptor_t)); 526 } 527 } 528 if (effects.size() > *count) { 529 status = NO_MEMORY; 530 } 531 *count = effects.size(); 532 return status; 533} 534 535void AudioPolicyService::binderDied(const wp<IBinder>& who) { 536 ALOGW("binderDied() %p, tid %d, calling tid %d", who.unsafe_get(), gettid(), 537 IPCThreadState::self()->getCallingPid()); 538} 539 540static bool tryLock(Mutex& mutex) 541{ 542 bool locked = false; 543 for (int i = 0; i < kDumpLockRetries; ++i) { 544 if (mutex.tryLock() == NO_ERROR) { 545 locked = true; 546 break; 547 } 548 usleep(kDumpLockSleep); 549 } 550 return locked; 551} 552 553status_t AudioPolicyService::dumpInternals(int fd) 554{ 555 const size_t SIZE = 256; 556 char buffer[SIZE]; 557 String8 result; 558 559 snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); 560 result.append(buffer); 561 snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); 562 result.append(buffer); 563 snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); 564 result.append(buffer); 565 566 write(fd, result.string(), result.size()); 567 return NO_ERROR; 568} 569 570status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) 571{ 572 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 573 dumpPermissionDenial(fd); 574 } else { 575 bool locked = tryLock(mLock); 576 if (!locked) { 577 String8 result(kDeadlockedString); 578 write(fd, result.string(), result.size()); 579 } 580 581 dumpInternals(fd); 582 if (mAudioCommandThread != NULL) { 583 mAudioCommandThread->dump(fd); 584 } 585 if (mTonePlaybackThread != NULL) { 586 mTonePlaybackThread->dump(fd); 587 } 588 589 if (mpAudioPolicy) { 590 mpAudioPolicy->dump(mpAudioPolicy, fd); 591 } 592 593 if (locked) mLock.unlock(); 594 } 595 return NO_ERROR; 596} 597 598status_t AudioPolicyService::dumpPermissionDenial(int fd) 599{ 600 const size_t SIZE = 256; 601 char buffer[SIZE]; 602 String8 result; 603 snprintf(buffer, SIZE, "Permission Denial: " 604 "can't dump AudioPolicyService from pid=%d, uid=%d\n", 605 IPCThreadState::self()->getCallingPid(), 606 IPCThreadState::self()->getCallingUid()); 607 result.append(buffer); 608 write(fd, result.string(), result.size()); 609 return NO_ERROR; 610} 611 612void AudioPolicyService::setPreProcessorEnabled(InputDesc *inputDesc, bool enabled) 613{ 614 Vector<sp<AudioEffect> > fxVector = inputDesc->mEffects; 615 for (size_t i = 0; i < fxVector.size(); i++) { 616 sp<AudioEffect> fx = fxVector.itemAt(i); 617 fx->setEnabled(enabled); 618 } 619} 620 621status_t AudioPolicyService::onTransact( 622 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 623{ 624 return BnAudioPolicyService::onTransact(code, data, reply, flags); 625} 626 627 628// ----------- AudioPolicyService::AudioCommandThread implementation ---------- 629 630AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name) 631 : Thread(false), mName(name) 632{ 633 mpToneGenerator = NULL; 634} 635 636 637AudioPolicyService::AudioCommandThread::~AudioCommandThread() 638{ 639 if (mName != "" && !mAudioCommands.isEmpty()) { 640 release_wake_lock(mName.string()); 641 } 642 mAudioCommands.clear(); 643 if (mpToneGenerator != NULL) delete mpToneGenerator; 644} 645 646void AudioPolicyService::AudioCommandThread::onFirstRef() 647{ 648 if (mName != "") { 649 run(mName.string(), ANDROID_PRIORITY_AUDIO); 650 } else { 651 run("AudioCommandThread", ANDROID_PRIORITY_AUDIO); 652 } 653} 654 655bool AudioPolicyService::AudioCommandThread::threadLoop() 656{ 657 nsecs_t waitTime = INT64_MAX; 658 659 mLock.lock(); 660 while (!exitPending()) 661 { 662 while(!mAudioCommands.isEmpty()) { 663 nsecs_t curTime = systemTime(); 664 // commands are sorted by increasing time stamp: execute them from index 0 and up 665 if (mAudioCommands[0]->mTime <= curTime) { 666 AudioCommand *command = mAudioCommands[0]; 667 mAudioCommands.removeAt(0); 668 mLastCommand = *command; 669 670 switch (command->mCommand) { 671 case START_TONE: { 672 mLock.unlock(); 673 ToneData *data = (ToneData *)command->mParam; 674 ALOGV("AudioCommandThread() processing start tone %d on stream %d", 675 data->mType, data->mStream); 676 if (mpToneGenerator != NULL) 677 delete mpToneGenerator; 678 mpToneGenerator = new ToneGenerator(data->mStream, 1.0); 679 mpToneGenerator->startTone(data->mType); 680 delete data; 681 mLock.lock(); 682 }break; 683 case STOP_TONE: { 684 mLock.unlock(); 685 ALOGV("AudioCommandThread() processing stop tone"); 686 if (mpToneGenerator != NULL) { 687 mpToneGenerator->stopTone(); 688 delete mpToneGenerator; 689 mpToneGenerator = NULL; 690 } 691 mLock.lock(); 692 }break; 693 case SET_VOLUME: { 694 VolumeData *data = (VolumeData *)command->mParam; 695 ALOGV("AudioCommandThread() processing set volume stream %d, \ 696 volume %f, output %d", data->mStream, data->mVolume, data->mIO); 697 command->mStatus = AudioSystem::setStreamVolume(data->mStream, 698 data->mVolume, 699 data->mIO); 700 if (command->mWaitStatus) { 701 command->mCond.signal(); 702 mWaitWorkCV.wait(mLock); 703 } 704 delete data; 705 }break; 706 case SET_PARAMETERS: { 707 ParametersData *data = (ParametersData *)command->mParam; 708 ALOGV("AudioCommandThread() processing set parameters string %s, io %d", 709 data->mKeyValuePairs.string(), data->mIO); 710 command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); 711 if (command->mWaitStatus) { 712 command->mCond.signal(); 713 mWaitWorkCV.wait(mLock); 714 } 715 delete data; 716 }break; 717 case SET_VOICE_VOLUME: { 718 VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; 719 ALOGV("AudioCommandThread() processing set voice volume volume %f", 720 data->mVolume); 721 command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); 722 if (command->mWaitStatus) { 723 command->mCond.signal(); 724 mWaitWorkCV.wait(mLock); 725 } 726 delete data; 727 }break; 728 default: 729 ALOGW("AudioCommandThread() unknown command %d", command->mCommand); 730 } 731 delete command; 732 waitTime = INT64_MAX; 733 } else { 734 waitTime = mAudioCommands[0]->mTime - curTime; 735 break; 736 } 737 } 738 // release delayed commands wake lock 739 if (mName != "" && mAudioCommands.isEmpty()) { 740 release_wake_lock(mName.string()); 741 } 742 ALOGV("AudioCommandThread() going to sleep"); 743 mWaitWorkCV.waitRelative(mLock, waitTime); 744 ALOGV("AudioCommandThread() waking up"); 745 } 746 mLock.unlock(); 747 return false; 748} 749 750status_t AudioPolicyService::AudioCommandThread::dump(int fd) 751{ 752 const size_t SIZE = 256; 753 char buffer[SIZE]; 754 String8 result; 755 756 snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); 757 result.append(buffer); 758 write(fd, result.string(), result.size()); 759 760 bool locked = tryLock(mLock); 761 if (!locked) { 762 String8 result2(kCmdDeadlockedString); 763 write(fd, result2.string(), result2.size()); 764 } 765 766 snprintf(buffer, SIZE, "- Commands:\n"); 767 result = String8(buffer); 768 result.append(" Command Time Wait pParam\n"); 769 for (int i = 0; i < (int)mAudioCommands.size(); i++) { 770 mAudioCommands[i]->dump(buffer, SIZE); 771 result.append(buffer); 772 } 773 result.append(" Last Command\n"); 774 mLastCommand.dump(buffer, SIZE); 775 result.append(buffer); 776 777 write(fd, result.string(), result.size()); 778 779 if (locked) mLock.unlock(); 780 781 return NO_ERROR; 782} 783 784void AudioPolicyService::AudioCommandThread::startToneCommand(int type, audio_stream_type_t stream) 785{ 786 AudioCommand *command = new AudioCommand(); 787 command->mCommand = START_TONE; 788 ToneData *data = new ToneData(); 789 data->mType = type; 790 data->mStream = stream; 791 command->mParam = (void *)data; 792 command->mWaitStatus = false; 793 Mutex::Autolock _l(mLock); 794 insertCommand_l(command); 795 ALOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); 796 mWaitWorkCV.signal(); 797} 798 799void AudioPolicyService::AudioCommandThread::stopToneCommand() 800{ 801 AudioCommand *command = new AudioCommand(); 802 command->mCommand = STOP_TONE; 803 command->mParam = NULL; 804 command->mWaitStatus = false; 805 Mutex::Autolock _l(mLock); 806 insertCommand_l(command); 807 ALOGV("AudioCommandThread() adding tone stop"); 808 mWaitWorkCV.signal(); 809} 810 811status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, 812 float volume, 813 int output, 814 int delayMs) 815{ 816 status_t status = NO_ERROR; 817 818 AudioCommand *command = new AudioCommand(); 819 command->mCommand = SET_VOLUME; 820 VolumeData *data = new VolumeData(); 821 data->mStream = stream; 822 data->mVolume = volume; 823 data->mIO = output; 824 command->mParam = data; 825 if (delayMs == 0) { 826 command->mWaitStatus = true; 827 } else { 828 command->mWaitStatus = false; 829 } 830 Mutex::Autolock _l(mLock); 831 insertCommand_l(command, delayMs); 832 ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", 833 stream, volume, output); 834 mWaitWorkCV.signal(); 835 if (command->mWaitStatus) { 836 command->mCond.wait(mLock); 837 status = command->mStatus; 838 mWaitWorkCV.signal(); 839 } 840 return status; 841} 842 843status_t AudioPolicyService::AudioCommandThread::parametersCommand(int ioHandle, 844 const char *keyValuePairs, 845 int delayMs) 846{ 847 status_t status = NO_ERROR; 848 849 AudioCommand *command = new AudioCommand(); 850 command->mCommand = SET_PARAMETERS; 851 ParametersData *data = new ParametersData(); 852 data->mIO = ioHandle; 853 data->mKeyValuePairs = String8(keyValuePairs); 854 command->mParam = data; 855 if (delayMs == 0) { 856 command->mWaitStatus = true; 857 } else { 858 command->mWaitStatus = false; 859 } 860 Mutex::Autolock _l(mLock); 861 insertCommand_l(command, delayMs); 862 ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", 863 keyValuePairs, ioHandle, delayMs); 864 mWaitWorkCV.signal(); 865 if (command->mWaitStatus) { 866 command->mCond.wait(mLock); 867 status = command->mStatus; 868 mWaitWorkCV.signal(); 869 } 870 return status; 871} 872 873status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) 874{ 875 status_t status = NO_ERROR; 876 877 AudioCommand *command = new AudioCommand(); 878 command->mCommand = SET_VOICE_VOLUME; 879 VoiceVolumeData *data = new VoiceVolumeData(); 880 data->mVolume = volume; 881 command->mParam = data; 882 if (delayMs == 0) { 883 command->mWaitStatus = true; 884 } else { 885 command->mWaitStatus = false; 886 } 887 Mutex::Autolock _l(mLock); 888 insertCommand_l(command, delayMs); 889 ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); 890 mWaitWorkCV.signal(); 891 if (command->mWaitStatus) { 892 command->mCond.wait(mLock); 893 status = command->mStatus; 894 mWaitWorkCV.signal(); 895 } 896 return status; 897} 898 899// insertCommand_l() must be called with mLock held 900void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) 901{ 902 ssize_t i; 903 Vector <AudioCommand *> removedCommands; 904 905 command->mTime = systemTime() + milliseconds(delayMs); 906 907 // acquire wake lock to make sure delayed commands are processed 908 if (mName != "" && mAudioCommands.isEmpty()) { 909 acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); 910 } 911 912 // check same pending commands with later time stamps and eliminate them 913 for (i = mAudioCommands.size()-1; i >= 0; i--) { 914 AudioCommand *command2 = mAudioCommands[i]; 915 // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands 916 if (command2->mTime <= command->mTime) break; 917 if (command2->mCommand != command->mCommand) continue; 918 919 switch (command->mCommand) { 920 case SET_PARAMETERS: { 921 ParametersData *data = (ParametersData *)command->mParam; 922 ParametersData *data2 = (ParametersData *)command2->mParam; 923 if (data->mIO != data2->mIO) break; 924 ALOGV("Comparing parameter command %s to new command %s", 925 data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); 926 AudioParameter param = AudioParameter(data->mKeyValuePairs); 927 AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); 928 for (size_t j = 0; j < param.size(); j++) { 929 String8 key; 930 String8 value; 931 param.getAt(j, key, value); 932 for (size_t k = 0; k < param2.size(); k++) { 933 String8 key2; 934 String8 value2; 935 param2.getAt(k, key2, value2); 936 if (key2 == key) { 937 param2.remove(key2); 938 ALOGV("Filtering out parameter %s", key2.string()); 939 break; 940 } 941 } 942 } 943 // if all keys have been filtered out, remove the command. 944 // otherwise, update the key value pairs 945 if (param2.size() == 0) { 946 removedCommands.add(command2); 947 } else { 948 data2->mKeyValuePairs = param2.toString(); 949 } 950 } break; 951 952 case SET_VOLUME: { 953 VolumeData *data = (VolumeData *)command->mParam; 954 VolumeData *data2 = (VolumeData *)command2->mParam; 955 if (data->mIO != data2->mIO) break; 956 if (data->mStream != data2->mStream) break; 957 ALOGV("Filtering out volume command on output %d for stream %d", 958 data->mIO, data->mStream); 959 removedCommands.add(command2); 960 } break; 961 case START_TONE: 962 case STOP_TONE: 963 default: 964 break; 965 } 966 } 967 968 // remove filtered commands 969 for (size_t j = 0; j < removedCommands.size(); j++) { 970 // removed commands always have time stamps greater than current command 971 for (size_t k = i + 1; k < mAudioCommands.size(); k++) { 972 if (mAudioCommands[k] == removedCommands[j]) { 973 ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); 974 mAudioCommands.removeAt(k); 975 break; 976 } 977 } 978 } 979 removedCommands.clear(); 980 981 // insert command at the right place according to its time stamp 982 ALOGV("inserting command: %d at index %d, num commands %d", 983 command->mCommand, (int)i+1, mAudioCommands.size()); 984 mAudioCommands.insertAt(command, i + 1); 985} 986 987void AudioPolicyService::AudioCommandThread::exit() 988{ 989 ALOGV("AudioCommandThread::exit"); 990 { 991 AutoMutex _l(mLock); 992 requestExit(); 993 mWaitWorkCV.signal(); 994 } 995 requestExitAndWait(); 996} 997 998void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) 999{ 1000 snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", 1001 mCommand, 1002 (int)ns2s(mTime), 1003 (int)ns2ms(mTime)%1000, 1004 mWaitStatus, 1005 mParam); 1006} 1007 1008/******* helpers for the service_ops callbacks defined below *********/ 1009void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, 1010 const char *keyValuePairs, 1011 int delayMs) 1012{ 1013 mAudioCommandThread->parametersCommand((int)ioHandle, keyValuePairs, 1014 delayMs); 1015} 1016 1017int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, 1018 float volume, 1019 audio_io_handle_t output, 1020 int delayMs) 1021{ 1022 return (int)mAudioCommandThread->volumeCommand(stream, volume, 1023 (int)output, delayMs); 1024} 1025 1026int AudioPolicyService::startTone(audio_policy_tone_t tone, 1027 audio_stream_type_t stream) 1028{ 1029 if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) 1030 ALOGE("startTone: illegal tone requested (%d)", tone); 1031 if (stream != AUDIO_STREAM_VOICE_CALL) 1032 ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, 1033 tone); 1034 mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, 1035 AUDIO_STREAM_VOICE_CALL); 1036 return 0; 1037} 1038 1039int AudioPolicyService::stopTone() 1040{ 1041 mTonePlaybackThread->stopToneCommand(); 1042 return 0; 1043} 1044 1045int AudioPolicyService::setVoiceVolume(float volume, int delayMs) 1046{ 1047 return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); 1048} 1049 1050// ---------------------------------------------------------------------------- 1051// Audio pre-processing configuration 1052// ---------------------------------------------------------------------------- 1053 1054const char *AudioPolicyService::kInputSourceNames[AUDIO_SOURCE_CNT -1] = { 1055 MIC_SRC_TAG, 1056 VOICE_UL_SRC_TAG, 1057 VOICE_DL_SRC_TAG, 1058 VOICE_CALL_SRC_TAG, 1059 CAMCORDER_SRC_TAG, 1060 VOICE_REC_SRC_TAG, 1061 VOICE_COMM_SRC_TAG 1062}; 1063 1064// returns the audio_source_t enum corresponding to the input source name or 1065// AUDIO_SOURCE_CNT is no match found 1066audio_source_t AudioPolicyService::inputSourceNameToEnum(const char *name) 1067{ 1068 int i; 1069 for (i = AUDIO_SOURCE_MIC; i < AUDIO_SOURCE_CNT; i++) { 1070 if (strcmp(name, kInputSourceNames[i - AUDIO_SOURCE_MIC]) == 0) { 1071 ALOGV("inputSourceNameToEnum found source %s %d", name, i); 1072 break; 1073 } 1074 } 1075 return (audio_source_t)i; 1076} 1077 1078size_t AudioPolicyService::growParamSize(char *param, 1079 size_t size, 1080 size_t *curSize, 1081 size_t *totSize) 1082{ 1083 // *curSize is at least sizeof(effect_param_t) + 2 * sizeof(int) 1084 size_t pos = ((*curSize - 1 ) / size + 1) * size; 1085 1086 if (pos + size > *totSize) { 1087 while (pos + size > *totSize) { 1088 *totSize += ((*totSize + 7) / 8) * 4; 1089 } 1090 param = (char *)realloc(param, *totSize); 1091 } 1092 *curSize = pos + size; 1093 return pos; 1094} 1095 1096size_t AudioPolicyService::readParamValue(cnode *node, 1097 char *param, 1098 size_t *curSize, 1099 size_t *totSize) 1100{ 1101 if (strncmp(node->name, SHORT_TAG, sizeof(SHORT_TAG) + 1) == 0) { 1102 size_t pos = growParamSize(param, sizeof(short), curSize, totSize); 1103 *(short *)((char *)param + pos) = (short)atoi(node->value); 1104 ALOGV("readParamValue() reading short %d", *(short *)((char *)param + pos)); 1105 return sizeof(short); 1106 } else if (strncmp(node->name, INT_TAG, sizeof(INT_TAG) + 1) == 0) { 1107 size_t pos = growParamSize(param, sizeof(int), curSize, totSize); 1108 *(int *)((char *)param + pos) = atoi(node->value); 1109 ALOGV("readParamValue() reading int %d", *(int *)((char *)param + pos)); 1110 return sizeof(int); 1111 } else if (strncmp(node->name, FLOAT_TAG, sizeof(FLOAT_TAG) + 1) == 0) { 1112 size_t pos = growParamSize(param, sizeof(float), curSize, totSize); 1113 *(float *)((char *)param + pos) = (float)atof(node->value); 1114 ALOGV("readParamValue() reading float %f",*(float *)((char *)param + pos)); 1115 return sizeof(float); 1116 } else if (strncmp(node->name, BOOL_TAG, sizeof(BOOL_TAG) + 1) == 0) { 1117 size_t pos = growParamSize(param, sizeof(bool), curSize, totSize); 1118 if (strncmp(node->value, "false", strlen("false") + 1) == 0) { 1119 *(bool *)((char *)param + pos) = false; 1120 } else { 1121 *(bool *)((char *)param + pos) = true; 1122 } 1123 ALOGV("readParamValue() reading bool %s",*(bool *)((char *)param + pos) ? "true" : "false"); 1124 return sizeof(bool); 1125 } else if (strncmp(node->name, STRING_TAG, sizeof(STRING_TAG) + 1) == 0) { 1126 size_t len = strnlen(node->value, EFFECT_STRING_LEN_MAX); 1127 if (*curSize + len + 1 > *totSize) { 1128 *totSize = *curSize + len + 1; 1129 param = (char *)realloc(param, *totSize); 1130 } 1131 strncpy(param + *curSize, node->value, len); 1132 *curSize += len; 1133 param[*curSize] = '\0'; 1134 ALOGV("readParamValue() reading string %s", param + *curSize - len); 1135 return len; 1136 } 1137 ALOGW("readParamValue() unknown param type %s", node->name); 1138 return 0; 1139} 1140 1141effect_param_t *AudioPolicyService::loadEffectParameter(cnode *root) 1142{ 1143 cnode *param; 1144 cnode *value; 1145 size_t curSize = sizeof(effect_param_t); 1146 size_t totSize = sizeof(effect_param_t) + 2 * sizeof(int); 1147 effect_param_t *fx_param = (effect_param_t *)malloc(totSize); 1148 1149 param = config_find(root, PARAM_TAG); 1150 value = config_find(root, VALUE_TAG); 1151 if (param == NULL && value == NULL) { 1152 // try to parse simple parameter form {int int} 1153 param = root->first_child; 1154 if (param) { 1155 // Note: that a pair of random strings is read as 0 0 1156 int *ptr = (int *)fx_param->data; 1157 int *ptr2 = (int *)((char *)param + sizeof(effect_param_t)); 1158 ALOGW("loadEffectParameter() ptr %p ptr2 %p", ptr, ptr2); 1159 *ptr++ = atoi(param->name); 1160 *ptr = atoi(param->value); 1161 fx_param->psize = sizeof(int); 1162 fx_param->vsize = sizeof(int); 1163 return fx_param; 1164 } 1165 } 1166 if (param == NULL || value == NULL) { 1167 ALOGW("loadEffectParameter() invalid parameter description %s", root->name); 1168 goto error; 1169 } 1170 1171 fx_param->psize = 0; 1172 param = param->first_child; 1173 while (param) { 1174 ALOGV("loadEffectParameter() reading param of type %s", param->name); 1175 size_t size = readParamValue(param, (char *)fx_param, &curSize, &totSize); 1176 if (size == 0) { 1177 goto error; 1178 } 1179 fx_param->psize += size; 1180 param = param->next; 1181 } 1182 1183 // align start of value field on 32 bit boundary 1184 curSize = ((curSize - 1 ) / sizeof(int) + 1) * sizeof(int); 1185 1186 fx_param->vsize = 0; 1187 value = value->first_child; 1188 while (value) { 1189 ALOGV("loadEffectParameter() reading value of type %s", value->name); 1190 size_t size = readParamValue(value, (char *)fx_param, &curSize, &totSize); 1191 if (size == 0) { 1192 goto error; 1193 } 1194 fx_param->vsize += size; 1195 value = value->next; 1196 } 1197 1198 return fx_param; 1199 1200error: 1201 delete fx_param; 1202 return NULL; 1203} 1204 1205void AudioPolicyService::loadEffectParameters(cnode *root, Vector <effect_param_t *>& params) 1206{ 1207 cnode *node = root->first_child; 1208 while (node) { 1209 ALOGV("loadEffectParameters() loading param %s", node->name); 1210 effect_param_t *param = loadEffectParameter(node); 1211 if (param == NULL) { 1212 node = node->next; 1213 continue; 1214 } 1215 params.add(param); 1216 node = node->next; 1217 } 1218} 1219 1220AudioPolicyService::InputSourceDesc *AudioPolicyService::loadInputSource( 1221 cnode *root, 1222 const Vector <EffectDesc *>& effects) 1223{ 1224 cnode *node = root->first_child; 1225 if (node == NULL) { 1226 ALOGW("loadInputSource() empty element %s", root->name); 1227 return NULL; 1228 } 1229 InputSourceDesc *source = new InputSourceDesc(); 1230 while (node) { 1231 size_t i; 1232 for (i = 0; i < effects.size(); i++) { 1233 if (strncmp(effects[i]->mName, node->name, EFFECT_STRING_LEN_MAX) == 0) { 1234 ALOGV("loadInputSource() found effect %s in list", node->name); 1235 break; 1236 } 1237 } 1238 if (i == effects.size()) { 1239 ALOGV("loadInputSource() effect %s not in list", node->name); 1240 node = node->next; 1241 continue; 1242 } 1243 EffectDesc *effect = new EffectDesc(*effects[i]); 1244 loadEffectParameters(node, effect->mParams); 1245 ALOGV("loadInputSource() adding effect %s uuid %08x", effect->mName, effect->mUuid.timeLow); 1246 source->mEffects.add(effect); 1247 node = node->next; 1248 } 1249 if (source->mEffects.size() == 0) { 1250 ALOGW("loadInputSource() no valid effects found in source %s", root->name); 1251 delete source; 1252 return NULL; 1253 } 1254 return source; 1255} 1256 1257status_t AudioPolicyService::loadInputSources(cnode *root, const Vector <EffectDesc *>& effects) 1258{ 1259 cnode *node = config_find(root, PREPROCESSING_TAG); 1260 if (node == NULL) { 1261 return -ENOENT; 1262 } 1263 node = node->first_child; 1264 while (node) { 1265 audio_source_t source = inputSourceNameToEnum(node->name); 1266 if (source == AUDIO_SOURCE_CNT) { 1267 ALOGW("loadInputSources() invalid input source %s", node->name); 1268 node = node->next; 1269 continue; 1270 } 1271 ALOGV("loadInputSources() loading input source %s", node->name); 1272 InputSourceDesc *desc = loadInputSource(node, effects); 1273 if (desc == NULL) { 1274 node = node->next; 1275 continue; 1276 } 1277 mInputSources.add(source, desc); 1278 node = node->next; 1279 } 1280 return NO_ERROR; 1281} 1282 1283AudioPolicyService::EffectDesc *AudioPolicyService::loadEffect(cnode *root) 1284{ 1285 cnode *node = config_find(root, UUID_TAG); 1286 if (node == NULL) { 1287 return NULL; 1288 } 1289 effect_uuid_t uuid; 1290 if (AudioEffect::stringToGuid(node->value, &uuid) != NO_ERROR) { 1291 ALOGW("loadEffect() invalid uuid %s", node->value); 1292 return NULL; 1293 } 1294 EffectDesc *effect = new EffectDesc(); 1295 effect->mName = strdup(root->name); 1296 memcpy(&effect->mUuid, &uuid, sizeof(effect_uuid_t)); 1297 1298 return effect; 1299} 1300 1301status_t AudioPolicyService::loadEffects(cnode *root, Vector <EffectDesc *>& effects) 1302{ 1303 cnode *node = config_find(root, EFFECTS_TAG); 1304 if (node == NULL) { 1305 return -ENOENT; 1306 } 1307 node = node->first_child; 1308 while (node) { 1309 ALOGV("loadEffects() loading effect %s", node->name); 1310 EffectDesc *effect = loadEffect(node); 1311 if (effect == NULL) { 1312 node = node->next; 1313 continue; 1314 } 1315 effects.add(effect); 1316 node = node->next; 1317 } 1318 return NO_ERROR; 1319} 1320 1321status_t AudioPolicyService::loadPreProcessorConfig(const char *path) 1322{ 1323 cnode *root; 1324 char *data; 1325 1326 data = (char *)load_file(path, NULL); 1327 if (data == NULL) { 1328 return -ENODEV; 1329 } 1330 root = config_node("", ""); 1331 config_load(root, data); 1332 1333 Vector <EffectDesc *> effects; 1334 loadEffects(root, effects); 1335 loadInputSources(root, effects); 1336 1337 config_free(root); 1338 free(root); 1339 free(data); 1340 1341 return NO_ERROR; 1342} 1343 1344/* implementation of the interface to the policy manager */ 1345extern "C" { 1346 1347static audio_io_handle_t aps_open_output(void *service, 1348 uint32_t *pDevices, 1349 uint32_t *pSamplingRate, 1350 uint32_t *pFormat, 1351 uint32_t *pChannels, 1352 uint32_t *pLatencyMs, 1353 audio_policy_output_flags_t flags) 1354{ 1355 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1356 if (af == NULL) { 1357 ALOGW("%s: could not get AudioFlinger", __func__); 1358 return 0; 1359 } 1360 1361 return af->openOutput(pDevices, pSamplingRate, pFormat, pChannels, 1362 pLatencyMs, flags); 1363} 1364 1365static audio_io_handle_t aps_open_dup_output(void *service, 1366 audio_io_handle_t output1, 1367 audio_io_handle_t output2) 1368{ 1369 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1370 if (af == NULL) { 1371 ALOGW("%s: could not get AudioFlinger", __func__); 1372 return 0; 1373 } 1374 return af->openDuplicateOutput(output1, output2); 1375} 1376 1377static int aps_close_output(void *service, audio_io_handle_t output) 1378{ 1379 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1380 if (af == NULL) 1381 return PERMISSION_DENIED; 1382 1383 return af->closeOutput(output); 1384} 1385 1386static int aps_suspend_output(void *service, audio_io_handle_t output) 1387{ 1388 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1389 if (af == NULL) { 1390 ALOGW("%s: could not get AudioFlinger", __func__); 1391 return PERMISSION_DENIED; 1392 } 1393 1394 return af->suspendOutput(output); 1395} 1396 1397static int aps_restore_output(void *service, audio_io_handle_t output) 1398{ 1399 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1400 if (af == NULL) { 1401 ALOGW("%s: could not get AudioFlinger", __func__); 1402 return PERMISSION_DENIED; 1403 } 1404 1405 return af->restoreOutput(output); 1406} 1407 1408static audio_io_handle_t aps_open_input(void *service, 1409 uint32_t *pDevices, 1410 uint32_t *pSamplingRate, 1411 uint32_t *pFormat, 1412 uint32_t *pChannels, 1413 uint32_t acoustics) 1414{ 1415 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1416 if (af == NULL) { 1417 ALOGW("%s: could not get AudioFlinger", __func__); 1418 return 0; 1419 } 1420 1421 return af->openInput(pDevices, pSamplingRate, pFormat, pChannels, 1422 acoustics); 1423} 1424 1425static int aps_close_input(void *service, audio_io_handle_t input) 1426{ 1427 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1428 if (af == NULL) 1429 return PERMISSION_DENIED; 1430 1431 return af->closeInput(input); 1432} 1433 1434static int aps_set_stream_output(void *service, audio_stream_type_t stream, 1435 audio_io_handle_t output) 1436{ 1437 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1438 if (af == NULL) 1439 return PERMISSION_DENIED; 1440 1441 return af->setStreamOutput(stream, output); 1442} 1443 1444static int aps_move_effects(void *service, int session, 1445 audio_io_handle_t src_output, 1446 audio_io_handle_t dst_output) 1447{ 1448 sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); 1449 if (af == NULL) 1450 return PERMISSION_DENIED; 1451 1452 return af->moveEffects(session, (int)src_output, (int)dst_output); 1453} 1454 1455static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, 1456 const char *keys) 1457{ 1458 String8 result = AudioSystem::getParameters(io_handle, String8(keys)); 1459 return strdup(result.string()); 1460} 1461 1462static void aps_set_parameters(void *service, audio_io_handle_t io_handle, 1463 const char *kv_pairs, int delay_ms) 1464{ 1465 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1466 1467 audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); 1468} 1469 1470static int aps_set_stream_volume(void *service, audio_stream_type_t stream, 1471 float volume, audio_io_handle_t output, 1472 int delay_ms) 1473{ 1474 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1475 1476 return audioPolicyService->setStreamVolume(stream, volume, output, 1477 delay_ms); 1478} 1479 1480static int aps_start_tone(void *service, audio_policy_tone_t tone, 1481 audio_stream_type_t stream) 1482{ 1483 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1484 1485 return audioPolicyService->startTone(tone, stream); 1486} 1487 1488static int aps_stop_tone(void *service) 1489{ 1490 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1491 1492 return audioPolicyService->stopTone(); 1493} 1494 1495static int aps_set_voice_volume(void *service, float volume, int delay_ms) 1496{ 1497 AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; 1498 1499 return audioPolicyService->setVoiceVolume(volume, delay_ms); 1500} 1501 1502}; // extern "C" 1503 1504namespace { 1505 struct audio_policy_service_ops aps_ops = { 1506 open_output : aps_open_output, 1507 open_duplicate_output : aps_open_dup_output, 1508 close_output : aps_close_output, 1509 suspend_output : aps_suspend_output, 1510 restore_output : aps_restore_output, 1511 open_input : aps_open_input, 1512 close_input : aps_close_input, 1513 set_stream_volume : aps_set_stream_volume, 1514 set_stream_output : aps_set_stream_output, 1515 set_parameters : aps_set_parameters, 1516 get_parameters : aps_get_parameters, 1517 start_tone : aps_start_tone, 1518 stop_tone : aps_stop_tone, 1519 set_voice_volume : aps_set_voice_volume, 1520 move_effects : aps_move_effects, 1521 }; 1522}; // namespace <unnamed> 1523 1524}; // namespace android 1525