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-rw-r--r--services/audioflinger/AudioPolicyService.cpp1005
1 files changed, 1005 insertions, 0 deletions
diff --git a/services/audioflinger/AudioPolicyService.cpp b/services/audioflinger/AudioPolicyService.cpp
new file mode 100644
index 0000000..f24e08e
--- /dev/null
+++ b/services/audioflinger/AudioPolicyService.cpp
@@ -0,0 +1,1005 @@
+/*
+ * 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,
+ int session)
+{
+ if (mpPolicyManager == NULL) {
+ return NO_INIT;
+ }
+ LOGV("startOutput() tid %d", gettid());
+ Mutex::Autolock _l(mLock);
+ return mpPolicyManager->startOutput(output, stream, session);
+}
+
+status_t AudioPolicyService::stopOutput(audio_io_handle_t output,
+ AudioSystem::stream_type stream,
+ int session)
+{
+ if (mpPolicyManager == NULL) {
+ return NO_INIT;
+ }
+ LOGV("stopOutput() tid %d", gettid());
+ Mutex::Autolock _l(mLock);
+ return mpPolicyManager->stopOutput(output, stream, session);
+}
+
+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);
+}
+
+uint32_t AudioPolicyService::getStrategyForStream(AudioSystem::stream_type stream)
+{
+ if (mpPolicyManager == NULL) {
+ return 0;
+ }
+ return mpPolicyManager->getStrategyForStream(stream);
+}
+
+audio_io_handle_t AudioPolicyService::getOutputForEffect(effect_descriptor_t *desc)
+{
+ if (mpPolicyManager == NULL) {
+ return NO_INIT;
+ }
+ Mutex::Autolock _l(mLock);
+ return mpPolicyManager->getOutputForEffect(desc);
+}
+
+status_t AudioPolicyService::registerEffect(effect_descriptor_t *desc,
+ audio_io_handle_t output,
+ uint32_t strategy,
+ int session,
+ int id)
+{
+ if (mpPolicyManager == NULL) {
+ return NO_INIT;
+ }
+ return mpPolicyManager->registerEffect(desc, output, strategy, session, id);
+}
+
+status_t AudioPolicyService::unregisterEffect(int id)
+{
+ if (mpPolicyManager == NULL) {
+ return NO_INIT;
+ }
+ return mpPolicyManager->unregisterEffect(id);
+}
+
+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);
+}
+
+status_t AudioPolicyService::moveEffects(int session, audio_io_handle_t srcOutput,
+ audio_io_handle_t dstOutput)
+{
+ sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+ if (af == 0) return PERMISSION_DENIED;
+
+ return af->moveEffects(session, (int)srcOutput, (int)dstOutput);
+}
+
+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