/*
* 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(String8 regId, int32_t state)
{
ALOGV("AudioPolicyService::onDynamicPolicyMixStateUpdate(%s, %d)",
regId.string(), state);
mOutputCommandThread->dynamicPolicyMixStateUpdateCommand(regId, state);
}
void AudioPolicyService::doOnDynamicPolicyMixStateUpdate(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(
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(
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