| /* |
| * 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 |
| |
| #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 "AudioPolicyManagerGeneric.h" |
| #include <cutils/properties.h> |
| #include <dlfcn.h> |
| |
| // ---------------------------------------------------------------------------- |
| // the sim build doesn't have gettid |
| |
| #ifndef HAVE_GETTID |
| # define gettid getpid |
| #endif |
| |
| namespace android { |
| |
| static bool checkPermission() { |
| #ifndef HAVE_ANDROID_OS |
| return true; |
| #endif |
| if (getpid() == IPCThreadState::self()->getCallingPid()) return true; |
| bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")); |
| if (!ok) LOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS"); |
| return ok; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| AudioPolicyService::AudioPolicyService() |
| : BnAudioPolicyService() , mpPolicyManager(NULL) |
| { |
| char value[PROPERTY_VALUE_MAX]; |
| |
| // start tone playback thread |
| mTonePlaybackThread = new AudioCommandThread(); |
| // start audio commands thread |
| mAudioCommandThread = new AudioCommandThread(); |
| |
| #if (defined GENERIC_AUDIO) || (defined AUDIO_POLICY_TEST) |
| mpPolicyManager = new AudioPolicyManagerGeneric(this); |
| LOGV("build for GENERIC_AUDIO - using generic audio policy"); |
| #else |
| // if running in emulation - use the emulator driver |
| if (property_get("ro.kernel.qemu", value, 0)) { |
| LOGV("Running in emulation - using generic audio policy"); |
| mpPolicyManager = new AudioPolicyManagerGeneric(this); |
| } |
| else { |
| LOGV("Using hardware specific audio policy"); |
| mpPolicyManager = createAudioPolicyManager(this); |
| } |
| #endif |
| |
| // load properties |
| property_get("ro.camera.sound.forced", value, "0"); |
| mpPolicyManager->setSystemProperty("ro.camera.sound.forced", value); |
| } |
| |
| AudioPolicyService::~AudioPolicyService() |
| { |
| mTonePlaybackThread->exit(); |
| mTonePlaybackThread.clear(); |
| mAudioCommandThread->exit(); |
| mAudioCommandThread.clear(); |
| |
| if (mpPolicyManager) { |
| delete mpPolicyManager; |
| } |
| } |
| |
| |
| status_t AudioPolicyService::setDeviceConnectionState(AudioSystem::audio_devices device, |
| AudioSystem::device_connection_state state, |
| const char *device_address) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (!AudioSystem::isOutputDevice(device) && !AudioSystem::isInputDevice(device)) { |
| return BAD_VALUE; |
| } |
| if (state != AudioSystem::DEVICE_STATE_AVAILABLE && state != AudioSystem::DEVICE_STATE_UNAVAILABLE) { |
| return BAD_VALUE; |
| } |
| |
| LOGV("setDeviceConnectionState() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->setDeviceConnectionState(device, state, device_address); |
| } |
| |
| AudioSystem::device_connection_state AudioPolicyService::getDeviceConnectionState(AudioSystem::audio_devices device, |
| const char *device_address) |
| { |
| if (mpPolicyManager == NULL) { |
| return AudioSystem::DEVICE_STATE_UNAVAILABLE; |
| } |
| if (!checkPermission()) { |
| return AudioSystem::DEVICE_STATE_UNAVAILABLE; |
| } |
| return mpPolicyManager->getDeviceConnectionState(device, device_address); |
| } |
| |
| status_t AudioPolicyService::setPhoneState(int state) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (state < 0 || state >= AudioSystem::NUM_MODES) { |
| return BAD_VALUE; |
| } |
| |
| LOGV("setPhoneState() tid %d", gettid()); |
| |
| // TODO: check if it is more appropriate to do it in platform specific policy manager |
| AudioSystem::setMode(state); |
| |
| Mutex::Autolock _l(mLock); |
| mpPolicyManager->setPhoneState(state); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setRingerMode(uint32_t mode, uint32_t mask) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| |
| mpPolicyManager->setRingerMode(mode, mask); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (usage < 0 || usage >= AudioSystem::NUM_FORCE_USE) { |
| return BAD_VALUE; |
| } |
| if (config < 0 || config >= AudioSystem::NUM_FORCE_CONFIG) { |
| return BAD_VALUE; |
| } |
| LOGV("setForceUse() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| mpPolicyManager->setForceUse(usage, config); |
| return NO_ERROR; |
| } |
| |
| AudioSystem::forced_config AudioPolicyService::getForceUse(AudioSystem::force_use usage) |
| { |
| if (mpPolicyManager == NULL) { |
| return AudioSystem::FORCE_NONE; |
| } |
| if (!checkPermission()) { |
| return AudioSystem::FORCE_NONE; |
| } |
| if (usage < 0 || usage >= AudioSystem::NUM_FORCE_USE) { |
| return AudioSystem::FORCE_NONE; |
| } |
| return mpPolicyManager->getForceUse(usage); |
| } |
| |
| audio_io_handle_t AudioPolicyService::getOutput(AudioSystem::stream_type stream, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channels, |
| AudioSystem::output_flags flags) |
| { |
| if (mpPolicyManager == NULL) { |
| return 0; |
| } |
| LOGV("getOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->getOutput(stream, samplingRate, format, channels, flags); |
| } |
| |
| status_t AudioPolicyService::startOutput(audio_io_handle_t output, AudioSystem::stream_type stream) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| LOGV("startOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->startOutput(output, stream); |
| } |
| |
| status_t AudioPolicyService::stopOutput(audio_io_handle_t output, AudioSystem::stream_type stream) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| LOGV("stopOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->stopOutput(output, stream); |
| } |
| |
| void AudioPolicyService::releaseOutput(audio_io_handle_t output) |
| { |
| if (mpPolicyManager == NULL) { |
| return; |
| } |
| LOGV("releaseOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| mpPolicyManager->releaseOutput(output); |
| } |
| |
| audio_io_handle_t AudioPolicyService::getInput(int inputSource, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channels, |
| AudioSystem::audio_in_acoustics acoustics) |
| { |
| if (mpPolicyManager == NULL) { |
| return 0; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->getInput(inputSource, samplingRate, format, channels, acoustics); |
| } |
| |
| status_t AudioPolicyService::startInput(audio_io_handle_t input) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->startInput(input); |
| } |
| |
| status_t AudioPolicyService::stopInput(audio_io_handle_t input) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpPolicyManager->stopInput(input); |
| } |
| |
| void AudioPolicyService::releaseInput(audio_io_handle_t input) |
| { |
| if (mpPolicyManager == NULL) { |
| return; |
| } |
| Mutex::Autolock _l(mLock); |
| mpPolicyManager->releaseInput(input); |
| } |
| |
| status_t AudioPolicyService::initStreamVolume(AudioSystem::stream_type stream, |
| int indexMin, |
| int indexMax) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (stream < 0 || stream >= AudioSystem::NUM_STREAM_TYPES) { |
| return BAD_VALUE; |
| } |
| mpPolicyManager->initStreamVolume(stream, indexMin, indexMax); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setStreamVolumeIndex(AudioSystem::stream_type stream, int index) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (stream < 0 || stream >= AudioSystem::NUM_STREAM_TYPES) { |
| return BAD_VALUE; |
| } |
| |
| return mpPolicyManager->setStreamVolumeIndex(stream, index); |
| } |
| |
| status_t AudioPolicyService::getStreamVolumeIndex(AudioSystem::stream_type stream, int *index) |
| { |
| if (mpPolicyManager == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (stream < 0 || stream >= AudioSystem::NUM_STREAM_TYPES) { |
| return BAD_VALUE; |
| } |
| return mpPolicyManager->getStreamVolumeIndex(stream, index); |
| } |
| |
| void AudioPolicyService::binderDied(const wp<IBinder>& who) { |
| LOGW("binderDied() %p, tid %d, calling tid %d", who.unsafe_get(), gettid(), IPCThreadState::self()->getCallingPid()); |
| } |
| |
| status_t AudioPolicyService::dump(int fd, const Vector<String16>& args) |
| { |
| if (checkCallingPermission(String16("android.permission.DUMP")) == false) { |
| dumpPermissionDenial(fd, args); |
| } else { |
| |
| } |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::dumpPermissionDenial(int fd, const Vector<String16>& args) |
| { |
| 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); |
| } |
| |
| |
| // ---------------------------------------------------------------------------- |
| void AudioPolicyService::instantiate() { |
| defaultServiceManager()->addService( |
| String16("media.audio_policy"), new AudioPolicyService()); |
| } |
| |
| |
| // ---------------------------------------------------------------------------- |
| // AudioPolicyClientInterface implementation |
| // ---------------------------------------------------------------------------- |
| |
| |
| audio_io_handle_t AudioPolicyService::openOutput(uint32_t *pDevices, |
| uint32_t *pSamplingRate, |
| uint32_t *pFormat, |
| uint32_t *pChannels, |
| uint32_t *pLatencyMs, |
| AudioSystem::output_flags flags) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| LOGW("openOutput() could not get AudioFlinger"); |
| return 0; |
| } |
| |
| return af->openOutput(pDevices, pSamplingRate, (uint32_t *)pFormat, pChannels, pLatencyMs, flags); |
| } |
| |
| audio_io_handle_t AudioPolicyService::openDuplicateOutput(audio_io_handle_t output1, audio_io_handle_t output2) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| LOGW("openDuplicateOutput() could not get AudioFlinger"); |
| return 0; |
| } |
| return af->openDuplicateOutput(output1, output2); |
| } |
| |
| status_t AudioPolicyService::closeOutput(audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| |
| return af->closeOutput(output); |
| } |
| |
| |
| status_t AudioPolicyService::suspendOutput(audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| LOGW("suspendOutput() could not get AudioFlinger"); |
| return PERMISSION_DENIED; |
| } |
| |
| return af->suspendOutput(output); |
| } |
| |
| status_t AudioPolicyService::restoreOutput(audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| LOGW("restoreOutput() could not get AudioFlinger"); |
| return PERMISSION_DENIED; |
| } |
| |
| return af->restoreOutput(output); |
| } |
| |
| audio_io_handle_t AudioPolicyService::openInput(uint32_t *pDevices, |
| uint32_t *pSamplingRate, |
| uint32_t *pFormat, |
| uint32_t *pChannels, |
| uint32_t acoustics) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| LOGW("openInput() could not get AudioFlinger"); |
| return 0; |
| } |
| |
| return af->openInput(pDevices, pSamplingRate, (uint32_t *)pFormat, pChannels, acoustics); |
| } |
| |
| status_t AudioPolicyService::closeInput(audio_io_handle_t input) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| |
| return af->closeInput(input); |
| } |
| |
| status_t AudioPolicyService::setStreamVolume(AudioSystem::stream_type stream, float volume, audio_io_handle_t output, int delayMs) |
| { |
| return mAudioCommandThread->volumeCommand((int)stream, volume, (int)output, delayMs); |
| } |
| |
| status_t AudioPolicyService::setStreamOutput(AudioSystem::stream_type stream, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) return PERMISSION_DENIED; |
| |
| return af->setStreamOutput(stream, output); |
| } |
| |
| |
| void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs, int delayMs) |
| { |
| mAudioCommandThread->parametersCommand((int)ioHandle, keyValuePairs, delayMs); |
| } |
| |
| String8 AudioPolicyService::getParameters(audio_io_handle_t ioHandle, const String8& keys) |
| { |
| String8 result = AudioSystem::getParameters(ioHandle, keys); |
| return result; |
| } |
| |
| status_t AudioPolicyService::startTone(ToneGenerator::tone_type tone, AudioSystem::stream_type stream) |
| { |
| mTonePlaybackThread->startToneCommand(tone, stream); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::stopTone() |
| { |
| mTonePlaybackThread->stopToneCommand(); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setVoiceVolume(float volume, int delayMs) |
| { |
| return mAudioCommandThread->voiceVolumeCommand(volume, delayMs); |
| } |
| |
| // ----------- AudioPolicyService::AudioCommandThread implementation ---------- |
| |
| AudioPolicyService::AudioCommandThread::AudioCommandThread() |
| : Thread(false) |
| { |
| mpToneGenerator = NULL; |
| } |
| |
| |
| AudioPolicyService::AudioCommandThread::~AudioCommandThread() |
| { |
| mAudioCommands.clear(); |
| if (mpToneGenerator != NULL) delete mpToneGenerator; |
| } |
| |
| void AudioPolicyService::AudioCommandThread::onFirstRef() |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| |
| snprintf(buffer, SIZE, "AudioCommandThread"); |
| |
| run(buffer, ANDROID_PRIORITY_AUDIO); |
| } |
| |
| bool AudioPolicyService::AudioCommandThread::threadLoop() |
| { |
| nsecs_t waitTime = INT64_MAX; |
| |
| mLock.lock(); |
| while (!exitPending()) |
| { |
| while(!mAudioCommands.isEmpty()) { |
| nsecs_t curTime = systemTime(); |
| // commands are sorted by increasing time stamp: execute them from index 0 and up |
| if (mAudioCommands[0]->mTime <= curTime) { |
| AudioCommand *command = mAudioCommands[0]; |
| mAudioCommands.removeAt(0); |
| switch (command->mCommand) { |
| case START_TONE: { |
| mLock.unlock(); |
| ToneData *data = (ToneData *)command->mParam; |
| LOGV("AudioCommandThread() processing start tone %d on stream %d", |
| data->mType, data->mStream); |
| if (mpToneGenerator != NULL) |
| delete mpToneGenerator; |
| mpToneGenerator = new ToneGenerator(data->mStream, 1.0); |
| mpToneGenerator->startTone(data->mType); |
| delete data; |
| mLock.lock(); |
| }break; |
| case STOP_TONE: { |
| mLock.unlock(); |
| LOGV("AudioCommandThread() processing stop tone"); |
| if (mpToneGenerator != NULL) { |
| mpToneGenerator->stopTone(); |
| delete mpToneGenerator; |
| mpToneGenerator = NULL; |
| } |
| mLock.lock(); |
| }break; |
| case SET_VOLUME: { |
| VolumeData *data = (VolumeData *)command->mParam; |
| LOGV("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); |
| if (command->mWaitStatus) { |
| command->mCond.signal(); |
| mWaitWorkCV.wait(mLock); |
| } |
| delete data; |
| }break; |
| case SET_PARAMETERS: { |
| ParametersData *data = (ParametersData *)command->mParam; |
| LOGV("AudioCommandThread() processing set parameters string %s, io %d", data->mKeyValuePairs.string(), data->mIO); |
| command->mStatus = AudioSystem::setParameters(data->mIO, data->mKeyValuePairs); |
| if (command->mWaitStatus) { |
| command->mCond.signal(); |
| mWaitWorkCV.wait(mLock); |
| } |
| delete data; |
| }break; |
| case SET_VOICE_VOLUME: { |
| VoiceVolumeData *data = (VoiceVolumeData *)command->mParam; |
| LOGV("AudioCommandThread() processing set voice volume volume %f", data->mVolume); |
| command->mStatus = AudioSystem::setVoiceVolume(data->mVolume); |
| if (command->mWaitStatus) { |
| command->mCond.signal(); |
| mWaitWorkCV.wait(mLock); |
| } |
| delete data; |
| }break; |
| default: |
| LOGW("AudioCommandThread() unknown command %d", command->mCommand); |
| } |
| delete command; |
| waitTime = INT64_MAX; |
| } else { |
| waitTime = mAudioCommands[0]->mTime - curTime; |
| break; |
| } |
| } |
| LOGV("AudioCommandThread() going to sleep"); |
| mWaitWorkCV.waitRelative(mLock, waitTime); |
| LOGV("AudioCommandThread() waking up"); |
| } |
| mLock.unlock(); |
| return false; |
| } |
| |
| void AudioPolicyService::AudioCommandThread::startToneCommand(int type, int stream) |
| { |
| AudioCommand *command = new AudioCommand(); |
| command->mCommand = START_TONE; |
| ToneData *data = new ToneData(); |
| data->mType = type; |
| data->mStream = stream; |
| command->mParam = (void *)data; |
| command->mWaitStatus = false; |
| Mutex::Autolock _l(mLock); |
| insertCommand_l(command); |
| LOGV("AudioCommandThread() adding tone start type %d, stream %d", type, stream); |
| mWaitWorkCV.signal(); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::stopToneCommand() |
| { |
| AudioCommand *command = new AudioCommand(); |
| command->mCommand = STOP_TONE; |
| command->mParam = NULL; |
| command->mWaitStatus = false; |
| Mutex::Autolock _l(mLock); |
| insertCommand_l(command); |
| LOGV("AudioCommandThread() adding tone stop"); |
| mWaitWorkCV.signal(); |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::volumeCommand(int stream, float volume, int output, int delayMs) |
| { |
| status_t status = NO_ERROR; |
| |
| AudioCommand *command = new AudioCommand(); |
| command->mCommand = SET_VOLUME; |
| VolumeData *data = new VolumeData(); |
| data->mStream = stream; |
| data->mVolume = volume; |
| data->mIO = output; |
| command->mParam = data; |
| if (delayMs == 0) { |
| command->mWaitStatus = true; |
| } else { |
| command->mWaitStatus = false; |
| } |
| Mutex::Autolock _l(mLock); |
| insertCommand_l(command, delayMs); |
| LOGV("AudioCommandThread() adding set volume stream %d, volume %f, output %d", stream, volume, output); |
| mWaitWorkCV.signal(); |
| if (command->mWaitStatus) { |
| command->mCond.wait(mLock); |
| status = command->mStatus; |
| mWaitWorkCV.signal(); |
| } |
| return status; |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::parametersCommand(int ioHandle, const String8& keyValuePairs, int delayMs) |
| { |
| status_t status = NO_ERROR; |
| |
| AudioCommand *command = new AudioCommand(); |
| command->mCommand = SET_PARAMETERS; |
| ParametersData *data = new ParametersData(); |
| data->mIO = ioHandle; |
| data->mKeyValuePairs = keyValuePairs; |
| command->mParam = data; |
| if (delayMs == 0) { |
| command->mWaitStatus = true; |
| } else { |
| command->mWaitStatus = false; |
| } |
| Mutex::Autolock _l(mLock); |
| insertCommand_l(command, delayMs); |
| LOGV("AudioCommandThread() adding set parameter string %s, io %d ,delay %d", keyValuePairs.string(), ioHandle, delayMs); |
| mWaitWorkCV.signal(); |
| if (command->mWaitStatus) { |
| command->mCond.wait(mLock); |
| status = command->mStatus; |
| mWaitWorkCV.signal(); |
| } |
| return status; |
| } |
| |
| status_t AudioPolicyService::AudioCommandThread::voiceVolumeCommand(float volume, int delayMs) |
| { |
| status_t status = NO_ERROR; |
| |
| AudioCommand *command = new AudioCommand(); |
| command->mCommand = SET_VOICE_VOLUME; |
| VoiceVolumeData *data = new VoiceVolumeData(); |
| data->mVolume = volume; |
| command->mParam = data; |
| if (delayMs == 0) { |
| command->mWaitStatus = true; |
| } else { |
| command->mWaitStatus = false; |
| } |
| Mutex::Autolock _l(mLock); |
| insertCommand_l(command, delayMs); |
| LOGV("AudioCommandThread() adding set voice volume volume %f", volume); |
| mWaitWorkCV.signal(); |
| if (command->mWaitStatus) { |
| command->mCond.wait(mLock); |
| status = command->mStatus; |
| mWaitWorkCV.signal(); |
| } |
| return status; |
| } |
| |
| // insertCommand_l() must be called with mLock held |
| void AudioPolicyService::AudioCommandThread::insertCommand_l(AudioCommand *command, int delayMs) |
| { |
| ssize_t i; |
| Vector <AudioCommand *> removedCommands; |
| |
| command->mTime = systemTime() + milliseconds(delayMs); |
| |
| // check same pending commands with later time stamps and eliminate them |
| for (i = mAudioCommands.size()-1; i >= 0; i--) { |
| 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; |
| if (command2->mCommand != command->mCommand) continue; |
| |
| switch (command->mCommand) { |
| case SET_PARAMETERS: { |
| ParametersData *data = (ParametersData *)command->mParam; |
| ParametersData *data2 = (ParametersData *)command2->mParam; |
| if (data->mIO != data2->mIO) break; |
| LOGV("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); |
| LOGV("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(); |
| } |
| } break; |
| |
| case SET_VOLUME: { |
| VolumeData *data = (VolumeData *)command->mParam; |
| VolumeData *data2 = (VolumeData *)command2->mParam; |
| if (data->mIO != data2->mIO) break; |
| if (data->mStream != data2->mStream) break; |
| LOGV("Filtering out volume command on output %d for stream %d", data->mIO, data->mStream); |
| removedCommands.add(command2); |
| } 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] == removedCommands[j]) { |
| LOGV("suppressing command: %d", mAudioCommands[k]->mCommand); |
| mAudioCommands.removeAt(k); |
| break; |
| } |
| } |
| } |
| removedCommands.clear(); |
| |
| // insert command at the right place according to its time stamp |
| LOGV("inserting command: %d at index %ld, num commands %d", command->mCommand, i+1, mAudioCommands.size()); |
| mAudioCommands.insertAt(command, i + 1); |
| } |
| |
| void AudioPolicyService::AudioCommandThread::exit() |
| { |
| LOGV("AudioCommandThread::exit"); |
| { |
| AutoMutex _l(mLock); |
| requestExit(); |
| mWaitWorkCV.signal(); |
| } |
| requestExitAndWait(); |
| } |
| |
| }; // namespace android |
