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Diffstat (limited to 'services/audioflinger/AudioPolicyService.cpp')
| -rw-r--r-- | services/audioflinger/AudioPolicyService.cpp | 924 |
1 files changed, 924 insertions, 0 deletions
diff --git a/services/audioflinger/AudioPolicyService.cpp b/services/audioflinger/AudioPolicyService.cpp new file mode 100644 index 0000000..bb3905c --- /dev/null +++ b/services/audioflinger/AudioPolicyService.cpp @@ -0,0 +1,924 @@ +/* + * 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 <hardware_legacy/AudioPolicyManagerBase.h> +#include <cutils/properties.h> +#include <dlfcn.h> +#include <hardware_legacy/power.h> + +// ---------------------------------------------------------------------------- +// the sim build doesn't have gettid + +#ifndef HAVE_GETTID +# define gettid getpid +#endif + +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 kDumpLockSleep = 20000; + +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(String8("")); + // start audio commands thread + mAudioCommandThread = new AudioCommandThread(String8("ApmCommandThread")); + +#if (defined GENERIC_AUDIO) || (defined AUDIO_POLICY_TEST) + mpPolicyManager = new AudioPolicyManagerBase(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 AudioPolicyManagerBase(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()); +} + +static bool tryLock(Mutex& mutex) +{ + bool locked = false; + for (int i = 0; i < kDumpLockRetries; ++i) { + if (mutex.tryLock() == NO_ERROR) { + locked = true; + break; + } + usleep(kDumpLockSleep); + } + return locked; +} + +status_t AudioPolicyService::dumpInternals(int fd) +{ + const size_t SIZE = 256; + char buffer[SIZE]; + String8 result; + + snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpPolicyManager); + 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) +{ + if (checkCallingPermission(String16("android.permission.DUMP")) == false) { + dumpPermissionDenial(fd); + } else { + bool locked = tryLock(mLock); + if (!locked) { + String8 result(kDeadlockedString); + write(fd, result.string(), result.size()); + } + + dumpInternals(fd); + if (mAudioCommandThread != NULL) { + mAudioCommandThread->dump(fd); + } + if (mTonePlaybackThread != NULL) { + mTonePlaybackThread->dump(fd); + } + + if (mpPolicyManager) { + mpPolicyManager->dump(fd); + } + + 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); +} + + +// ---------------------------------------------------------------------------- +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(String8 name) + : Thread(false), mName(name) +{ + mpToneGenerator = NULL; +} + + +AudioPolicyService::AudioCommandThread::~AudioCommandThread() +{ + if (mName != "" && !mAudioCommands.isEmpty()) { + release_wake_lock(mName.string()); + } + mAudioCommands.clear(); + if (mpToneGenerator != NULL) delete mpToneGenerator; +} + +void AudioPolicyService::AudioCommandThread::onFirstRef() +{ + if (mName != "") { + run(mName.string(), ANDROID_PRIORITY_AUDIO); + } else { + run("AudioCommandThread", 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); + mLastCommand = *command; + + 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; + } + } + // release delayed commands wake lock + if (mName != "" && mAudioCommands.isEmpty()) { + release_wake_lock(mName.string()); + } + LOGV("AudioCommandThread() going to sleep"); + mWaitWorkCV.waitRelative(mLock, waitTime); + LOGV("AudioCommandThread() waking up"); + } + 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 (int i = 0; i < (int)mAudioCommands.size(); i++) { + mAudioCommands[i]->dump(buffer, SIZE); + result.append(buffer); + } + result.append(" Last Command\n"); + mLastCommand.dump(buffer, SIZE); + result.append(buffer); + + write(fd, result.string(), result.size()); + + if (locked) mLock.unlock(); + + return NO_ERROR; +} + +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); + + // acquire wake lock to make sure delayed commands are processed + if (mName != "" && 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--) { + 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 %d, num commands %d", command->mCommand, (int)i+1, mAudioCommands.size()); + mAudioCommands.insertAt(command, i + 1); +} + +void AudioPolicyService::AudioCommandThread::exit() +{ + LOGV("AudioCommandThread::exit"); + { + AutoMutex _l(mLock); + requestExit(); + mWaitWorkCV.signal(); + } + 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); +} + +}; // namespace android |