| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "AudioPolicyService" |
| //#define LOG_NDEBUG 0 |
| |
| #include "Configuration.h" |
| #undef __STRICT_ANSI__ |
| #define __STDINT_LIMITS |
| #define __STDC_LIMIT_MACROS |
| #include <stdint.h> |
| |
| #include <sys/time.h> |
| #include <binder/IServiceManager.h> |
| #include <utils/Log.h> |
| #include <cutils/properties.h> |
| #include <binder/IPCThreadState.h> |
| #include <utils/String16.h> |
| #include <utils/threads.h> |
| #include "AudioPolicyService.h" |
| #include "ServiceUtilities.h" |
| #include <hardware_legacy/power.h> |
| #include <media/AudioEffect.h> |
| #include <media/EffectsFactoryApi.h> |
| #include <media/AudioParameter.h> |
| |
| #include <hardware/hardware.h> |
| #include <system/audio.h> |
| #include <system/audio_policy.h> |
| #include <hardware/audio_policy.h> |
| |
| namespace android { |
| |
| static const char kDeadlockedString[] = "AudioPolicyService may be deadlocked\n"; |
| static const char kCmdDeadlockedString[] = "AudioPolicyService command thread may be deadlocked\n"; |
| |
| static const int kDumpLockRetries = 50; |
| static const int kDumpLockSleepUs = 20000; |
| |
| static const nsecs_t kAudioCommandTimeoutNs = seconds(3); // 3 seconds |
| |
| #ifdef USE_LEGACY_AUDIO_POLICY |
| namespace { |
| extern struct audio_policy_service_ops aps_ops; |
| }; |
| #endif |
| |
| // ---------------------------------------------------------------------------- |
| |
| AudioPolicyService::AudioPolicyService() |
| : BnAudioPolicyService(), mpAudioPolicyDev(NULL), mpAudioPolicy(NULL), |
| mAudioPolicyManager(NULL), mAudioPolicyClient(NULL), mPhoneState(AUDIO_MODE_INVALID) |
| { |
| } |
| |
| void AudioPolicyService::onFirstRef() |
| { |
| { |
| Mutex::Autolock _l(mLock); |
| |
| // start tone playback thread |
| mTonePlaybackThread = new AudioCommandThread(String8("ApmTone"), this); |
| // start audio commands thread |
| mAudioCommandThread = new AudioCommandThread(String8("ApmAudio"), this); |
| // start output activity command thread |
| mOutputCommandThread = new AudioCommandThread(String8("ApmOutput"), this); |
| |
| #ifdef USE_LEGACY_AUDIO_POLICY |
| ALOGI("AudioPolicyService CSTOR in legacy mode"); |
| |
| /* instantiate the audio policy manager */ |
| const struct hw_module_t *module; |
| int rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module); |
| if (rc) { |
| return; |
| } |
| rc = audio_policy_dev_open(module, &mpAudioPolicyDev); |
| ALOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc)); |
| if (rc) { |
| return; |
| } |
| |
| rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this, |
| &mpAudioPolicy); |
| ALOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc)); |
| if (rc) { |
| return; |
| } |
| |
| rc = mpAudioPolicy->init_check(mpAudioPolicy); |
| ALOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc)); |
| if (rc) { |
| return; |
| } |
| ALOGI("Loaded audio policy from %s (%s)", module->name, module->id); |
| #else |
| ALOGI("AudioPolicyService CSTOR in new mode"); |
| |
| mAudioPolicyClient = new AudioPolicyClient(this); |
| mAudioPolicyManager = createAudioPolicyManager(mAudioPolicyClient); |
| #endif |
| } |
| // load audio processing modules |
| sp<AudioPolicyEffects>audioPolicyEffects = new AudioPolicyEffects(); |
| { |
| Mutex::Autolock _l(mLock); |
| mAudioPolicyEffects = audioPolicyEffects; |
| } |
| } |
| |
| AudioPolicyService::~AudioPolicyService() |
| { |
| mTonePlaybackThread->exit(); |
| mAudioCommandThread->exit(); |
| mOutputCommandThread->exit(); |
| |
| #ifdef USE_LEGACY_AUDIO_POLICY |
| if (mpAudioPolicy != NULL && mpAudioPolicyDev != NULL) { |
| mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy); |
| } |
| if (mpAudioPolicyDev != NULL) { |
| audio_policy_dev_close(mpAudioPolicyDev); |
| } |
| #else |
| destroyAudioPolicyManager(mAudioPolicyManager); |
| delete mAudioPolicyClient; |
| #endif |
| |
| mNotificationClients.clear(); |
| mAudioPolicyEffects.clear(); |
| } |
| |
| // A notification client is always registered by AudioSystem when the client process |
| // connects to AudioPolicyService. |
| void AudioPolicyService::registerClient(const sp<IAudioPolicyServiceClient>& client) |
| { |
| if (client == 0) { |
| ALOGW("%s got NULL client", __FUNCTION__); |
| return; |
| } |
| Mutex::Autolock _l(mNotificationClientsLock); |
| |
| uid_t uid = IPCThreadState::self()->getCallingUid(); |
| if (mNotificationClients.indexOfKey(uid) < 0) { |
| sp<NotificationClient> notificationClient = new NotificationClient(this, |
| client, |
| uid); |
| ALOGV("registerClient() client %p, uid %d", client.get(), uid); |
| |
| mNotificationClients.add(uid, notificationClient); |
| |
| sp<IBinder> binder = IInterface::asBinder(client); |
| binder->linkToDeath(notificationClient); |
| } |
| } |
| |
| void AudioPolicyService::setAudioPortCallbacksEnabled(bool enabled) |
| { |
| Mutex::Autolock _l(mNotificationClientsLock); |
| |
| uid_t uid = IPCThreadState::self()->getCallingUid(); |
| if (mNotificationClients.indexOfKey(uid) < 0) { |
| return; |
| } |
| mNotificationClients.valueFor(uid)->setAudioPortCallbacksEnabled(enabled); |
| } |
| |
| // removeNotificationClient() is called when the client process dies. |
| void AudioPolicyService::removeNotificationClient(uid_t uid) |
| { |
| { |
| Mutex::Autolock _l(mNotificationClientsLock); |
| mNotificationClients.removeItem(uid); |
| } |
| #ifndef USE_LEGACY_AUDIO_POLICY |
| { |
| Mutex::Autolock _l(mLock); |
| if (mAudioPolicyManager) { |
| mAudioPolicyManager->releaseResourcesForUid(uid); |
| } |
| } |
| #endif |
| } |
| |
| void AudioPolicyService::onAudioPortListUpdate() |
| { |
| mOutputCommandThread->updateAudioPortListCommand(); |
| } |
| |
| void AudioPolicyService::doOnAudioPortListUpdate() |
| { |
| Mutex::Autolock _l(mNotificationClientsLock); |
| for (size_t i = 0; i < mNotificationClients.size(); i++) { |
| mNotificationClients.valueAt(i)->onAudioPortListUpdate(); |
| } |
| } |
| |
| void AudioPolicyService::onAudioPatchListUpdate() |
| { |
| mOutputCommandThread->updateAudioPatchListCommand(); |
| } |
| |
| void AudioPolicyService::doOnAudioPatchListUpdate() |
| { |
| Mutex::Autolock _l(mNotificationClientsLock); |
| for (size_t i = 0; i < mNotificationClients.size(); i++) { |
| mNotificationClients.valueAt(i)->onAudioPatchListUpdate(); |
| } |
| } |
| |
| void AudioPolicyService::onDynamicPolicyMixStateUpdate(const String8& regId, int32_t state) |
| { |
| ALOGV("AudioPolicyService::onDynamicPolicyMixStateUpdate(%s, %d)", |
| regId.string(), state); |
| mOutputCommandThread->dynamicPolicyMixStateUpdateCommand(regId, state); |
| } |
| |
| void AudioPolicyService::doOnDynamicPolicyMixStateUpdate(const String8& regId, int32_t state) |
| { |
| Mutex::Autolock _l(mNotificationClientsLock); |
| for (size_t i = 0; i < mNotificationClients.size(); i++) { |
| mNotificationClients.valueAt(i)->onDynamicPolicyMixStateUpdate(regId, state); |
| } |
| } |
| |
| void AudioPolicyService::onRecordingConfigurationUpdate(int event, audio_session_t session, |
| audio_source_t source, const audio_config_base_t *clientConfig, |
| const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle) |
| { |
| mOutputCommandThread->recordingConfigurationUpdateCommand(event, session, source, |
| clientConfig, deviceConfig, patchHandle); |
| } |
| |
| void AudioPolicyService::doOnRecordingConfigurationUpdate(int event, audio_session_t session, |
| audio_source_t source, const audio_config_base_t *clientConfig, |
| const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle) |
| { |
| Mutex::Autolock _l(mNotificationClientsLock); |
| for (size_t i = 0; i < mNotificationClients.size(); i++) { |
| mNotificationClients.valueAt(i)->onRecordingConfigurationUpdate(event, session, source, |
| clientConfig, deviceConfig, patchHandle); |
| } |
| } |
| |
| status_t AudioPolicyService::clientCreateAudioPatch(const struct audio_patch *patch, |
| audio_patch_handle_t *handle, |
| int delayMs) |
| { |
| return mAudioCommandThread->createAudioPatchCommand(patch, handle, delayMs); |
| } |
| |
| status_t AudioPolicyService::clientReleaseAudioPatch(audio_patch_handle_t handle, |
| int delayMs) |
| { |
| return mAudioCommandThread->releaseAudioPatchCommand(handle, delayMs); |
| } |
| |
| status_t AudioPolicyService::clientSetAudioPortConfig(const struct audio_port_config *config, |
| int delayMs) |
| { |
| return mAudioCommandThread->setAudioPortConfigCommand(config, delayMs); |
| } |
| |
| AudioPolicyService::NotificationClient::NotificationClient(const sp<AudioPolicyService>& service, |
| const sp<IAudioPolicyServiceClient>& client, |
| uid_t uid) |
| : mService(service), mUid(uid), mAudioPolicyServiceClient(client), |
| mAudioPortCallbacksEnabled(false) |
| { |
| } |
| |
| AudioPolicyService::NotificationClient::~NotificationClient() |
| { |
| } |
| |
| void AudioPolicyService::NotificationClient::binderDied(const wp<IBinder>& who __unused) |
| { |
| sp<NotificationClient> keep(this); |
| sp<AudioPolicyService> service = mService.promote(); |
| if (service != 0) { |
| service->removeNotificationClient(mUid); |
| } |
| } |
| |
| void AudioPolicyService::NotificationClient::onAudioPortListUpdate() |
| { |
| if (mAudioPolicyServiceClient != 0 && mAudioPortCallbacksEnabled) { |
| mAudioPolicyServiceClient->onAudioPortListUpdate(); |
| } |
| } |
| |
| void AudioPolicyService::NotificationClient::onAudioPatchListUpdate() |
| { |
| if (mAudioPolicyServiceClient != 0 && mAudioPortCallbacksEnabled) { |
| mAudioPolicyServiceClient->onAudioPatchListUpdate(); |
| } |
| } |
| |
| void AudioPolicyService::NotificationClient::onDynamicPolicyMixStateUpdate( |
| const String8& regId, int32_t state) |
| { |
| if (mAudioPolicyServiceClient != 0) { |
| mAudioPolicyServiceClient->onDynamicPolicyMixStateUpdate(regId, state); |
| } |
| } |
| |
| void AudioPolicyService::NotificationClient::onRecordingConfigurationUpdate( |
| int event, audio_session_t session, audio_source_t source, |
| const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig, |
| audio_patch_handle_t patchHandle) |
| { |
| if (mAudioPolicyServiceClient != 0) { |
| mAudioPolicyServiceClient->onRecordingConfigurationUpdate(event, session, source, |
| clientConfig, deviceConfig, patchHandle); |
| } |
| } |
| |
| void AudioPolicyService::NotificationClient::setAudioPortCallbacksEnabled(bool enabled) |
| { |
| mAudioPortCallbacksEnabled = enabled; |
| } |
| |
| |
| void AudioPolicyService::binderDied(const wp<IBinder>& who) { |
| ALOGW("binderDied() %p, calling pid %d", who.unsafe_get(), |
| IPCThreadState::self()->getCallingPid()); |
| } |
| |
| static bool tryLock(Mutex& mutex) |
| { |
| bool locked = false; |
| for (int i = 0; i < kDumpLockRetries; ++i) { |
| if (mutex.tryLock() == NO_ERROR) { |
| locked = true; |
| break; |
| } |
| usleep(kDumpLockSleepUs); |
| } |
| return locked; |
| } |
| |
| status_t AudioPolicyService::dumpInternals(int fd) |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| |
| #ifdef USE_LEGACY_AUDIO_POLICY |
| snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy); |
| #else |
| snprintf(buffer, SIZE, "AudioPolicyManager: %p\n", mAudioPolicyManager); |
| #endif |
| result.append(buffer); |
| snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get()); |
| result.append(buffer); |
| snprintf(buffer, SIZE, "Tones Thread: %p\n", mTonePlaybackThread.get()); |
| result.append(buffer); |
| |
| write(fd, result.string(), result.size()); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::dump(int fd, const Vector<String16>& args __unused) |
| { |
| if (!dumpAllowed()) { |
| dumpPermissionDenial(fd); |
| } else { |
| bool locked = tryLock(mLock); |
| if (!locked) { |
| String8 result(kDeadlockedString); |
| write(fd, result.string(), result.size()); |
| } |
| |
| dumpInternals(fd); |
| if (mAudioCommandThread != 0) { |
| mAudioCommandThread->dump(fd); |
| } |
| if (mTonePlaybackThread != 0) { |
| mTonePlaybackThread->dump(fd); |
| } |
| |
| #ifdef USE_LEGACY_AUDIO_POLICY |
| if (mpAudioPolicy) { |
| mpAudioPolicy->dump(mpAudioPolicy, fd); |
| } |
| #else |
| if (mAudioPolicyManager) { |
| mAudioPolicyManager->dump(fd); |
| } |
| #endif |
| |
| if (locked) mLock.unlock(); |
| } |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::dumpPermissionDenial(int fd) |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| snprintf(buffer, SIZE, "Permission Denial: " |
| "can't dump AudioPolicyService from pid=%d, uid=%d\n", |
| IPCThreadState::self()->getCallingPid(), |
| IPCThreadState::self()->getCallingUid()); |
| result.append(buffer); |
| write(fd, result.string(), result.size()); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| return BnAudioPolicyService::onTransact(code, data, reply, flags); |
| } |
| |
| |
| // ----------- AudioPolicyService::AudioCommandThread implementation ---------- |
| |
| AudioPolicyService::AudioCommandThread::AudioCommandThread(String8 name, |
| const wp<AudioPolicyService>& service) |
| : Thread(false), mName(name), mService(service) |
| { |
| mpToneGenerator = NULL; |
| } |
| |
| |
| AudioPolicyService::AudioCommandThread::~AudioCommandThread() |
| { |
| if (!mAudioCommands.isEmpty()) { |
| release_wake_lock(mName.string()); |
| } |
| mAudioCommands.clear(); |
| delete mpToneGenerator; |
| } |
| |
| void AudioPolicyService::AudioCommandThread::onFirstRef() |
| { |
| run(mName.string(), ANDROID_PRIORITY_AUDIO); |
| } |
| |
| bool AudioPolicyService::AudioCommandThread::threadLoop() |
| { |
| nsecs_t waitTime = -1; |
| |
| mLock.lock(); |
| while (!exitPending()) |
| { |
| sp<AudioPolicyService> svc; |
| while (!mAudioCommands.isEmpty() && !exitPending()) { |
| nsecs_t curTime = systemTime(); |
| // commands are sorted by increasing time stamp: execute them from index 0 and up |
| if (mAudioCommands[0]->mTime <= curTime) { |
| sp<AudioCommand> command = mAudioCommands[0]; |
| mAudioCommands.removeAt(0); |
| mLastCommand = command; |
| |
| switch (command->mCommand) { |
| case START_TONE: { |
| mLock.unlock(); |
| ToneData *data = (ToneData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing start tone %d on stream %d", |
| data->mType, data->mStream); |
| delete mpToneGenerator; |
| mpToneGenerator = new ToneGenerator(data->mStream, 1.0); |
| mpToneGenerator->startTone(data->mType); |
| mLock.lock(); |
| }break; |
| case STOP_TONE: { |
| mLock.unlock(); |
| ALOGV("AudioCommandThread() processing stop tone"); |
| if (mpToneGenerator != NULL) { |
| mpToneGenerator->stopTone(); |
| delete mpToneGenerator; |
| mpToneGenerator = NULL; |
| } |
| mLock.lock(); |
| }break; |
| case SET_VOLUME: { |
| VolumeData *data = (VolumeData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing set volume stream %d, \ |
| volume %f, output %d", data->mStream, data->mVolume, data->mIO); |
| command->mStatus = AudioSystem::setStreamVolume(data->mStream, |
| data->mVolume, |
| data->mIO); |
| }break; |
| case SET_PARAMETERS: { |
| ParametersData *data = (ParametersData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing set parameters string %s, io %d", |
| data->mKeyValuePairs.string(), data->mIO); |
| command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); |
| }break; |
| case SET_VOICE_VOLUME: { |
| VoiceVolumeData *data = (VoiceVolumeData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing set voice volume volume %f", |
| data->mVolume); |
| command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); |
| }break; |
| case STOP_OUTPUT: { |
| StopOutputData *data = (StopOutputData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing stop output %d", |
| data->mIO); |
| svc = mService.promote(); |
| if (svc == 0) { |
| break; |
| } |
| mLock.unlock(); |
| svc->doStopOutput(data->mIO, data->mStream, data->mSession); |
| mLock.lock(); |
| }break; |
| case RELEASE_OUTPUT: { |
| ReleaseOutputData *data = (ReleaseOutputData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing release output %d", |
| data->mIO); |
| svc = mService.promote(); |
| if (svc == 0) { |
| break; |
| } |
| mLock.unlock(); |
| svc->doReleaseOutput(data->mIO, data->mStream, data->mSession); |
| mLock.lock(); |
| }break; |
| case CREATE_AUDIO_PATCH: { |
| CreateAudioPatchData *data = (CreateAudioPatchData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing create audio patch"); |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| command->mStatus = PERMISSION_DENIED; |
| } else { |
| command->mStatus = af->createAudioPatch(&data->mPatch, &data->mHandle); |
| } |
| } break; |
| case RELEASE_AUDIO_PATCH: { |
| ReleaseAudioPatchData *data = (ReleaseAudioPatchData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing release audio patch"); |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| command->mStatus = PERMISSION_DENIED; |
| } else { |
| command->mStatus = af->releaseAudioPatch(data->mHandle); |
| } |
| } break; |
| case UPDATE_AUDIOPORT_LIST: { |
| ALOGV("AudioCommandThread() processing update audio port list"); |
| svc = mService.promote(); |
| if (svc == 0) { |
| break; |
| } |
| mLock.unlock(); |
| svc->doOnAudioPortListUpdate(); |
| mLock.lock(); |
| }break; |
| case UPDATE_AUDIOPATCH_LIST: { |
| ALOGV("AudioCommandThread() processing update audio patch list"); |
| svc = mService.promote(); |
| if (svc == 0) { |
| break; |
| } |
| mLock.unlock(); |
| svc->doOnAudioPatchListUpdate(); |
| mLock.lock(); |
| }break; |
| case SET_AUDIOPORT_CONFIG: { |
| SetAudioPortConfigData *data = (SetAudioPortConfigData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing set port config"); |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| command->mStatus = PERMISSION_DENIED; |
| } else { |
| command->mStatus = af->setAudioPortConfig(&data->mConfig); |
| } |
| } break; |
| case DYN_POLICY_MIX_STATE_UPDATE: { |
| DynPolicyMixStateUpdateData *data = |
| (DynPolicyMixStateUpdateData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing dyn policy mix state update %s %d", |
| data->mRegId.string(), data->mState); |
| svc = mService.promote(); |
| if (svc == 0) { |
| break; |
| } |
| mLock.unlock(); |
| svc->doOnDynamicPolicyMixStateUpdate(data->mRegId, data->mState); |
| mLock.lock(); |
| } break; |
| case RECORDING_CONFIGURATION_UPDATE: { |
| RecordingConfigurationUpdateData *data = |
| (RecordingConfigurationUpdateData *)command->mParam.get(); |
| ALOGV("AudioCommandThread() processing recording configuration update"); |
| svc = mService.promote(); |
| if (svc == 0) { |
| break; |
| } |
| mLock.unlock(); |
| svc->doOnRecordingConfigurationUpdate(data->mEvent, data->mSession, |
| data->mSource, &data->mClientConfig, &data->mDeviceConfig, |
| data->mPatchHandle); |
| mLock.lock(); |
| } break; |
| default: |
| ALOGW("AudioCommandThread() unknown command %d", command->mCommand); |
| } |
| { |
| Mutex::Autolock _l(command->mLock); |
| if (command->mWaitStatus) { |
| command->mWaitStatus = false; |
| command->mCond.signal(); |
| } |
| } |
| waitTime = -1; |
| // release mLock before releasing strong reference on the service as |
| // AudioPolicyService destructor calls AudioCommandThread::exit() which |
| // acquires mLock. |
| mLock.unlock(); |
| svc.clear(); |
| mLock.lock(); |
| } else { |
| waitTime = mAudioCommands[0]->mTime - curTime; |
| break; |
| } |
| } |
| |
| // release delayed commands wake lock if the queue is empty |
| if (mAudioCommands.isEmpty()) { |
| release_wake_lock(mName.string()); |
| } |
| |
| // At this stage we have either an empty command queue or the first command in the queue |
| // has a finite delay. So unless we are exiting it is safe to wait. |
| if (!exitPending()) { |
| ALOGV("AudioCommandThread() going to sleep"); |
| if (waitTime == -1) { |
| mWaitWorkCV.wait(mLock); |
| } else { |
| mWaitWorkCV.waitRelative(mLock, waitTime); |
| } |
| } |
| } |
| // release delayed commands wake lock before quitting |
| if (!mAudioCommands.isEmpty()) { |
| release_wake_lock(mName.string()); |
| } |
| mLock.unlock(); |
| return false; |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::dump(int fd) |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| |
| snprintf(buffer, SIZE, "AudioCommandThread %p Dump\n", this); |
| result.append(buffer); |
| write(fd, result.string(), result.size()); |
| |
| bool locked = tryLock(mLock); |
| if (!locked) { |
| String8 result2(kCmdDeadlockedString); |
| write(fd, result2.string(), result2.size()); |
| } |
| |
| snprintf(buffer, SIZE, "- Commands:\n"); |
| result = String8(buffer); |
| result.append(" Command Time Wait pParam\n"); |
| for (size_t i = 0; i < mAudioCommands.size(); i++) { |
| mAudioCommands[i]->dump(buffer, SIZE); |
| result.append(buffer); |
| } |
| result.append(" Last Command\n"); |
| if (mLastCommand != 0) { |
| mLastCommand->dump(buffer, SIZE); |
| result.append(buffer); |
| } else { |
| result.append(" none\n"); |
| } |
| |
| write(fd, result.string(), result.size()); |
| |
| if (locked) mLock.unlock(); |
| |
| return NO_ERROR; |
| } |
| |
| void AudioPolicyService::AudioCommandThread::startToneCommand(ToneGenerator::tone_type type, |
| audio_stream_type_t stream) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = START_TONE; |
| sp<ToneData> data = new ToneData(); |
| data->mType = type; |
| data->mStream = stream; |
| command->mParam = data; |
| ALOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); |
| sendCommand(command); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::stopToneCommand() |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = STOP_TONE; |
| ALOGV("AudioCommandThread() adding tone stop"); |
| sendCommand(command); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::volumeCommand(audio_stream_type_t stream, |
| float volume, |
| audio_io_handle_t output, |
| int delayMs) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = SET_VOLUME; |
| sp<VolumeData> data = new VolumeData(); |
| data->mStream = stream; |
| data->mVolume = volume; |
| data->mIO = output; |
| command->mParam = data; |
| command->mWaitStatus = true; |
| ALOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", |
| stream, volume, output); |
| return sendCommand(command, delayMs); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::parametersCommand(audio_io_handle_t ioHandle, |
| const char *keyValuePairs, |
| int delayMs) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = SET_PARAMETERS; |
| sp<ParametersData> data = new ParametersData(); |
| data->mIO = ioHandle; |
| data->mKeyValuePairs = String8(keyValuePairs); |
| command->mParam = data; |
| command->mWaitStatus = true; |
| ALOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", |
| keyValuePairs, ioHandle, delayMs); |
| return sendCommand(command, delayMs); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = SET_VOICE_VOLUME; |
| sp<VoiceVolumeData> data = new VoiceVolumeData(); |
| data->mVolume = volume; |
| command->mParam = data; |
| command->mWaitStatus = true; |
| ALOGV("AudioCommandThread() adding set voice volume volume %f", volume); |
| return sendCommand(command, delayMs); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::stopOutputCommand(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| audio_session_t session) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = STOP_OUTPUT; |
| sp<StopOutputData> data = new StopOutputData(); |
| data->mIO = output; |
| data->mStream = stream; |
| data->mSession = session; |
| command->mParam = data; |
| ALOGV("AudioCommandThread() adding stop output %d", output); |
| sendCommand(command); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::releaseOutputCommand(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| audio_session_t session) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = RELEASE_OUTPUT; |
| sp<ReleaseOutputData> data = new ReleaseOutputData(); |
| data->mIO = output; |
| data->mStream = stream; |
| data->mSession = session; |
| command->mParam = data; |
| ALOGV("AudioCommandThread() adding release output %d", output); |
| sendCommand(command); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::createAudioPatchCommand( |
| const struct audio_patch *patch, |
| audio_patch_handle_t *handle, |
| int delayMs) |
| { |
| status_t status = NO_ERROR; |
| |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = CREATE_AUDIO_PATCH; |
| CreateAudioPatchData *data = new CreateAudioPatchData(); |
| data->mPatch = *patch; |
| data->mHandle = *handle; |
| command->mParam = data; |
| command->mWaitStatus = true; |
| ALOGV("AudioCommandThread() adding create patch delay %d", delayMs); |
| status = sendCommand(command, delayMs); |
| if (status == NO_ERROR) { |
| *handle = data->mHandle; |
| } |
| return status; |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::releaseAudioPatchCommand(audio_patch_handle_t handle, |
| int delayMs) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = RELEASE_AUDIO_PATCH; |
| ReleaseAudioPatchData *data = new ReleaseAudioPatchData(); |
| data->mHandle = handle; |
| command->mParam = data; |
| command->mWaitStatus = true; |
| ALOGV("AudioCommandThread() adding release patch delay %d", delayMs); |
| return sendCommand(command, delayMs); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::updateAudioPortListCommand() |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = UPDATE_AUDIOPORT_LIST; |
| ALOGV("AudioCommandThread() adding update audio port list"); |
| sendCommand(command); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::updateAudioPatchListCommand() |
| { |
| sp<AudioCommand>command = new AudioCommand(); |
| command->mCommand = UPDATE_AUDIOPATCH_LIST; |
| ALOGV("AudioCommandThread() adding update audio patch list"); |
| sendCommand(command); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::setAudioPortConfigCommand( |
| const struct audio_port_config *config, int delayMs) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = SET_AUDIOPORT_CONFIG; |
| SetAudioPortConfigData *data = new SetAudioPortConfigData(); |
| data->mConfig = *config; |
| command->mParam = data; |
| command->mWaitStatus = true; |
| ALOGV("AudioCommandThread() adding set port config delay %d", delayMs); |
| return sendCommand(command, delayMs); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::dynamicPolicyMixStateUpdateCommand( |
| const String8& regId, int32_t state) |
| { |
| sp<AudioCommand> command = new AudioCommand(); |
| command->mCommand = DYN_POLICY_MIX_STATE_UPDATE; |
| DynPolicyMixStateUpdateData *data = new DynPolicyMixStateUpdateData(); |
| data->mRegId = regId; |
| data->mState = state; |
| command->mParam = data; |
| ALOGV("AudioCommandThread() sending dynamic policy mix (id=%s) state update to %d", |
| regId.string(), state); |
| sendCommand(command); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::recordingConfigurationUpdateCommand( |
| int event, audio_session_t session, audio_source_t source, |
| const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig, |
| audio_patch_handle_t patchHandle) |
| { |
| sp<AudioCommand>command = new AudioCommand(); |
| command->mCommand = RECORDING_CONFIGURATION_UPDATE; |
| RecordingConfigurationUpdateData *data = new RecordingConfigurationUpdateData(); |
| data->mEvent = event; |
| data->mSession = session; |
| data->mSource = source; |
| data->mClientConfig = *clientConfig; |
| data->mDeviceConfig = *deviceConfig; |
| data->mPatchHandle = patchHandle; |
| command->mParam = data; |
| ALOGV("AudioCommandThread() adding recording configuration update event %d, source %d", |
| event, source); |
| sendCommand(command); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::sendCommand(sp<AudioCommand>& command, int delayMs) |
| { |
| { |
| Mutex::Autolock _l(mLock); |
| insertCommand_l(command, delayMs); |
| mWaitWorkCV.signal(); |
| } |
| Mutex::Autolock _l(command->mLock); |
| while (command->mWaitStatus) { |
| nsecs_t timeOutNs = kAudioCommandTimeoutNs + milliseconds(delayMs); |
| if (command->mCond.waitRelative(command->mLock, timeOutNs) != NO_ERROR) { |
| command->mStatus = TIMED_OUT; |
| command->mWaitStatus = false; |
| } |
| } |
| return command->mStatus; |
| } |
| |
| // insertCommand_l() must be called with mLock held |
| void AudioPolicyService::AudioCommandThread::insertCommand_l(sp<AudioCommand>& command, int delayMs) |
| { |
| ssize_t i; // not size_t because i will count down to -1 |
| Vector < sp<AudioCommand> > removedCommands; |
| command->mTime = systemTime() + milliseconds(delayMs); |
| |
| // acquire wake lock to make sure delayed commands are processed |
| if (mAudioCommands.isEmpty()) { |
| acquire_wake_lock(PARTIAL_WAKE_LOCK, mName.string()); |
| } |
| |
| // check same pending commands with later time stamps and eliminate them |
| for (i = mAudioCommands.size()-1; i >= 0; i--) { |
| sp<AudioCommand> command2 = mAudioCommands[i]; |
| // commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands |
| if (command2->mTime <= command->mTime) break; |
| |
| // create audio patch or release audio patch commands are equivalent |
| // with regard to filtering |
| if ((command->mCommand == CREATE_AUDIO_PATCH) || |
| (command->mCommand == RELEASE_AUDIO_PATCH)) { |
| if ((command2->mCommand != CREATE_AUDIO_PATCH) && |
| (command2->mCommand != RELEASE_AUDIO_PATCH)) { |
| continue; |
| } |
| } else if (command2->mCommand != command->mCommand) continue; |
| |
| switch (command->mCommand) { |
| case SET_PARAMETERS: { |
| ParametersData *data = (ParametersData *)command->mParam.get(); |
| ParametersData *data2 = (ParametersData *)command2->mParam.get(); |
| if (data->mIO != data2->mIO) break; |
| ALOGV("Comparing parameter command %s to new command %s", |
| data2->mKeyValuePairs.string(), data->mKeyValuePairs.string()); |
| AudioParameter param = AudioParameter(data->mKeyValuePairs); |
| AudioParameter param2 = AudioParameter(data2->mKeyValuePairs); |
| for (size_t j = 0; j < param.size(); j++) { |
| String8 key; |
| String8 value; |
| param.getAt(j, key, value); |
| for (size_t k = 0; k < param2.size(); k++) { |
| String8 key2; |
| String8 value2; |
| param2.getAt(k, key2, value2); |
| if (key2 == key) { |
| param2.remove(key2); |
| ALOGV("Filtering out parameter %s", key2.string()); |
| break; |
| } |
| } |
| } |
| // if all keys have been filtered out, remove the command. |
| // otherwise, update the key value pairs |
| if (param2.size() == 0) { |
| removedCommands.add(command2); |
| } else { |
| data2->mKeyValuePairs = param2.toString(); |
| } |
| command->mTime = command2->mTime; |
| // force delayMs to non 0 so that code below does not request to wait for |
| // command status as the command is now delayed |
| delayMs = 1; |
| } break; |
| |
| case SET_VOLUME: { |
| VolumeData *data = (VolumeData *)command->mParam.get(); |
| VolumeData *data2 = (VolumeData *)command2->mParam.get(); |
| if (data->mIO != data2->mIO) break; |
| if (data->mStream != data2->mStream) break; |
| ALOGV("Filtering out volume command on output %d for stream %d", |
| data->mIO, data->mStream); |
| removedCommands.add(command2); |
| command->mTime = command2->mTime; |
| // force delayMs to non 0 so that code below does not request to wait for |
| // command status as the command is now delayed |
| delayMs = 1; |
| } break; |
| |
| case SET_VOICE_VOLUME: { |
| VoiceVolumeData *data = (VoiceVolumeData *)command->mParam.get(); |
| VoiceVolumeData *data2 = (VoiceVolumeData *)command2->mParam.get(); |
| ALOGV("Filtering out voice volume command value %f replaced by %f", |
| data2->mVolume, data->mVolume); |
| removedCommands.add(command2); |
| command->mTime = command2->mTime; |
| // force delayMs to non 0 so that code below does not request to wait for |
| // command status as the command is now delayed |
| delayMs = 1; |
| } break; |
| |
| case CREATE_AUDIO_PATCH: |
| case RELEASE_AUDIO_PATCH: { |
| audio_patch_handle_t handle; |
| struct audio_patch patch; |
| if (command->mCommand == CREATE_AUDIO_PATCH) { |
| handle = ((CreateAudioPatchData *)command->mParam.get())->mHandle; |
| patch = ((CreateAudioPatchData *)command->mParam.get())->mPatch; |
| } else { |
| handle = ((ReleaseAudioPatchData *)command->mParam.get())->mHandle; |
| } |
| audio_patch_handle_t handle2; |
| struct audio_patch patch2; |
| if (command2->mCommand == CREATE_AUDIO_PATCH) { |
| handle2 = ((CreateAudioPatchData *)command2->mParam.get())->mHandle; |
| patch2 = ((CreateAudioPatchData *)command2->mParam.get())->mPatch; |
| } else { |
| handle2 = ((ReleaseAudioPatchData *)command2->mParam.get())->mHandle; |
| memset(&patch2, 0, sizeof(patch2)); |
| } |
| if (handle != handle2) break; |
| /* Filter CREATE_AUDIO_PATCH commands only when they are issued for |
| same output. */ |
| if( (command->mCommand == CREATE_AUDIO_PATCH) && |
| (command2->mCommand == CREATE_AUDIO_PATCH) ) { |
| bool isOutputDiff = false; |
| if (patch.num_sources == patch2.num_sources) { |
| for (unsigned count = 0; count < patch.num_sources; count++) { |
| if (patch.sources[count].id != patch2.sources[count].id) { |
| isOutputDiff = true; |
| break; |
| } |
| } |
| if (isOutputDiff) |
| break; |
| } |
| } |
| ALOGV("Filtering out %s audio patch command for handle %d", |
| (command->mCommand == CREATE_AUDIO_PATCH) ? "create" : "release", handle); |
| removedCommands.add(command2); |
| command->mTime = command2->mTime; |
| // force delayMs to non 0 so that code below does not request to wait for |
| // command status as the command is now delayed |
| delayMs = 1; |
| } break; |
| |
| case DYN_POLICY_MIX_STATE_UPDATE: { |
| |
| } break; |
| |
| case RECORDING_CONFIGURATION_UPDATE: { |
| |
| } break; |
| |
| case START_TONE: |
| case STOP_TONE: |
| default: |
| break; |
| } |
| } |
| |
| // remove filtered commands |
| for (size_t j = 0; j < removedCommands.size(); j++) { |
| // removed commands always have time stamps greater than current command |
| for (size_t k = i + 1; k < mAudioCommands.size(); k++) { |
| if (mAudioCommands[k].get() == removedCommands[j].get()) { |
| ALOGV("suppressing command: %d", mAudioCommands[k]->mCommand); |
| mAudioCommands.removeAt(k); |
| break; |
| } |
| } |
| } |
| removedCommands.clear(); |
| |
| // Disable wait for status if delay is not 0. |
| // Except for create audio patch command because the returned patch handle |
| // is needed by audio policy manager |
| if (delayMs != 0 && command->mCommand != CREATE_AUDIO_PATCH) { |
| command->mWaitStatus = false; |
| } |
| |
| // insert command at the right place according to its time stamp |
| ALOGV("inserting command: %d at index %zd, num commands %zu", |
| command->mCommand, i+1, mAudioCommands.size()); |
| mAudioCommands.insertAt(command, i + 1); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::exit() |
| { |
| ALOGV("AudioCommandThread::exit"); |
| { |
| AutoMutex _l(mLock); |
| requestExit(); |
| mWaitWorkCV.signal(); |
| } |
| // Note that we can call it from the thread loop if all other references have been released |
| // but it will safely return WOULD_BLOCK in this case |
| requestExitAndWait(); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::AudioCommand::dump(char* buffer, size_t size) |
| { |
| snprintf(buffer, size, " %02d %06d.%03d %01u %p\n", |
| mCommand, |
| (int)ns2s(mTime), |
| (int)ns2ms(mTime)%1000, |
| mWaitStatus, |
| mParam.get()); |
| } |
| |
| /******* helpers for the service_ops callbacks defined below *********/ |
| void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, |
| const char *keyValuePairs, |
| int delayMs) |
| { |
| mAudioCommandThread->parametersCommand(ioHandle, keyValuePairs, |
| delayMs); |
| } |
| |
| int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, |
| float volume, |
| audio_io_handle_t output, |
| int delayMs) |
| { |
| return (int)mAudioCommandThread->volumeCommand(stream, volume, |
| output, delayMs); |
| } |
| |
| int AudioPolicyService::startTone(audio_policy_tone_t tone, |
| audio_stream_type_t stream) |
| { |
| if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) { |
| ALOGE("startTone: illegal tone requested (%d)", tone); |
| } |
| if (stream != AUDIO_STREAM_VOICE_CALL) { |
| ALOGE("startTone: illegal stream (%d) requested for tone %d", stream, |
| tone); |
| } |
| mTonePlaybackThread->startToneCommand(ToneGenerator::TONE_SUP_CALL_WAITING, |
| AUDIO_STREAM_VOICE_CALL); |
| return 0; |
| } |
| |
| int AudioPolicyService::stopTone() |
| { |
| mTonePlaybackThread->stopToneCommand(); |
| return 0; |
| } |
| |
| int AudioPolicyService::setVoiceVolume(float volume, int delayMs) |
| { |
| return (int)mAudioCommandThread->voiceVolumeCommand(volume, delayMs); |
| } |
| |
| extern "C" { |
| audio_module_handle_t aps_load_hw_module(void *service __unused, |
| const char *name); |
| audio_io_handle_t aps_open_output(void *service __unused, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| uint32_t *pLatencyMs, |
| audio_output_flags_t flags); |
| |
| audio_io_handle_t aps_open_output_on_module(void *service __unused, |
| audio_module_handle_t module, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| uint32_t *pLatencyMs, |
| audio_output_flags_t flags, |
| const audio_offload_info_t *offloadInfo); |
| audio_io_handle_t aps_open_dup_output(void *service __unused, |
| audio_io_handle_t output1, |
| audio_io_handle_t output2); |
| int aps_close_output(void *service __unused, audio_io_handle_t output); |
| int aps_suspend_output(void *service __unused, audio_io_handle_t output); |
| int aps_restore_output(void *service __unused, audio_io_handle_t output); |
| audio_io_handle_t aps_open_input(void *service __unused, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| audio_in_acoustics_t acoustics __unused); |
| audio_io_handle_t aps_open_input_on_module(void *service __unused, |
| audio_module_handle_t module, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask); |
| int aps_close_input(void *service __unused, audio_io_handle_t input); |
| int aps_invalidate_stream(void *service __unused, audio_stream_type_t stream); |
| int aps_move_effects(void *service __unused, audio_session_t session, |
| audio_io_handle_t src_output, |
| audio_io_handle_t dst_output); |
| char * aps_get_parameters(void *service __unused, audio_io_handle_t io_handle, |
| const char *keys); |
| void aps_set_parameters(void *service, audio_io_handle_t io_handle, |
| const char *kv_pairs, int delay_ms); |
| int aps_set_stream_volume(void *service, audio_stream_type_t stream, |
| float volume, audio_io_handle_t output, |
| int delay_ms); |
| int aps_start_tone(void *service, audio_policy_tone_t tone, |
| audio_stream_type_t stream); |
| int aps_stop_tone(void *service); |
| int aps_set_voice_volume(void *service, float volume, int delay_ms); |
| }; |
| |
| #ifdef USE_LEGACY_AUDIO_POLICY |
| namespace { |
| struct audio_policy_service_ops aps_ops = { |
| .open_output = aps_open_output, |
| .open_duplicate_output = aps_open_dup_output, |
| .close_output = aps_close_output, |
| .suspend_output = aps_suspend_output, |
| .restore_output = aps_restore_output, |
| .open_input = aps_open_input, |
| .close_input = aps_close_input, |
| .set_stream_volume = aps_set_stream_volume, |
| .invalidate_stream = aps_invalidate_stream, |
| .set_parameters = aps_set_parameters, |
| .get_parameters = aps_get_parameters, |
| .start_tone = aps_start_tone, |
| .stop_tone = aps_stop_tone, |
| .set_voice_volume = aps_set_voice_volume, |
| .move_effects = aps_move_effects, |
| .load_hw_module = aps_load_hw_module, |
| .open_output_on_module = aps_open_output_on_module, |
| .open_input_on_module = aps_open_input_on_module, |
| }; |
| }; // namespace <unnamed> |
| #endif |
| |
| }; // namespace android |