| /* |
| * 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 <cutils/properties.h> |
| #include <dlfcn.h> |
| #include <hardware_legacy/power.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 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; |
| } |
| |
| namespace { |
| extern struct audio_policy_service_ops aps_ops; |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| AudioPolicyService::AudioPolicyService() |
| : BnAudioPolicyService() , mpAudioPolicyDev(NULL) , mpAudioPolicy(NULL) |
| { |
| char value[PROPERTY_VALUE_MAX]; |
| const struct hw_module_t *module; |
| int forced_val; |
| int rc; |
| |
| Mutex::Autolock _l(mLock); |
| |
| // start tone playback thread |
| mTonePlaybackThread = new AudioCommandThread(String8("")); |
| // start audio commands thread |
| mAudioCommandThread = new AudioCommandThread(String8("ApmCommandThread")); |
| |
| /* instantiate the audio policy manager */ |
| rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module); |
| if (rc) |
| return; |
| |
| rc = audio_policy_dev_open(module, &mpAudioPolicyDev); |
| LOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc)); |
| if (rc) |
| return; |
| |
| rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this, |
| &mpAudioPolicy); |
| LOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc)); |
| if (rc) |
| return; |
| |
| rc = mpAudioPolicy->init_check(mpAudioPolicy); |
| LOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc)); |
| if (rc) |
| return; |
| |
| property_get("ro.camera.sound.forced", value, "0"); |
| forced_val = strtol(value, NULL, 0); |
| mpAudioPolicy->set_can_mute_enforced_audible(mpAudioPolicy, !forced_val); |
| |
| LOGI("Loaded audio policy from %s (%s)", module->name, module->id); |
| } |
| |
| AudioPolicyService::~AudioPolicyService() |
| { |
| mTonePlaybackThread->exit(); |
| mTonePlaybackThread.clear(); |
| mAudioCommandThread->exit(); |
| mAudioCommandThread.clear(); |
| |
| if (mpAudioPolicy && mpAudioPolicyDev) |
| mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy); |
| if (mpAudioPolicyDev) |
| audio_policy_dev_close(mpAudioPolicyDev); |
| } |
| |
| status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device, |
| audio_policy_dev_state_t state, |
| const char *device_address) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (!audio_is_output_device(device) && !audio_is_input_device(device)) { |
| return BAD_VALUE; |
| } |
| if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE && |
| state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) { |
| return BAD_VALUE; |
| } |
| |
| LOGV("setDeviceConnectionState() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device, |
| state, device_address); |
| } |
| |
| audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState( |
| audio_devices_t device, |
| const char *device_address) |
| { |
| if (mpAudioPolicy == NULL) { |
| return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; |
| } |
| if (!checkPermission()) { |
| return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; |
| } |
| return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device, |
| device_address); |
| } |
| |
| status_t AudioPolicyService::setPhoneState(int state) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (state < 0 || state >= AUDIO_MODE_CNT) { |
| 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); |
| mpAudioPolicy->set_phone_state(mpAudioPolicy, state); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setRingerMode(uint32_t mode, uint32_t mask) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| |
| mpAudioPolicy->set_ringer_mode(mpAudioPolicy, mode, mask); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage, |
| audio_policy_forced_cfg_t config) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { |
| return BAD_VALUE; |
| } |
| if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) { |
| return BAD_VALUE; |
| } |
| LOGV("setForceUse() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config); |
| return NO_ERROR; |
| } |
| |
| audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage) |
| { |
| if (mpAudioPolicy == NULL) { |
| return AUDIO_POLICY_FORCE_NONE; |
| } |
| if (!checkPermission()) { |
| return AUDIO_POLICY_FORCE_NONE; |
| } |
| if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) { |
| return AUDIO_POLICY_FORCE_NONE; |
| } |
| return mpAudioPolicy->get_force_use(mpAudioPolicy, usage); |
| } |
| |
| audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channels, |
| audio_policy_output_flags_t flags) |
| { |
| if (mpAudioPolicy == NULL) { |
| return 0; |
| } |
| LOGV("getOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate, format, channels, flags); |
| } |
| |
| status_t AudioPolicyService::startOutput(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| int session) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| LOGV("startOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session); |
| } |
| |
| status_t AudioPolicyService::stopOutput(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| int session) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| LOGV("stopOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session); |
| } |
| |
| void AudioPolicyService::releaseOutput(audio_io_handle_t output) |
| { |
| if (mpAudioPolicy == NULL) { |
| return; |
| } |
| LOGV("releaseOutput() tid %d", gettid()); |
| Mutex::Autolock _l(mLock); |
| mpAudioPolicy->release_output(mpAudioPolicy, output); |
| } |
| |
| audio_io_handle_t AudioPolicyService::getInput(int inputSource, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channels, |
| audio_in_acoustics_t acoustics) |
| { |
| if (mpAudioPolicy == NULL) { |
| return 0; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate, format, channels, acoustics); |
| } |
| |
| status_t AudioPolicyService::startInput(audio_io_handle_t input) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->start_input(mpAudioPolicy, input); |
| } |
| |
| status_t AudioPolicyService::stopInput(audio_io_handle_t input) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->stop_input(mpAudioPolicy, input); |
| } |
| |
| void AudioPolicyService::releaseInput(audio_io_handle_t input) |
| { |
| if (mpAudioPolicy == NULL) { |
| return; |
| } |
| Mutex::Autolock _l(mLock); |
| mpAudioPolicy->release_input(mpAudioPolicy, input); |
| } |
| |
| status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream, |
| int indexMin, |
| int indexMax) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (stream < 0 || stream >= AUDIO_STREAM_CNT) { |
| return BAD_VALUE; |
| } |
| mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax); |
| return NO_ERROR; |
| } |
| |
| status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream, int index) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (stream < 0 || stream >= AUDIO_STREAM_CNT) { |
| return BAD_VALUE; |
| } |
| |
| return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index); |
| } |
| |
| status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream, int *index) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| if (!checkPermission()) { |
| return PERMISSION_DENIED; |
| } |
| if (stream < 0 || stream >= AUDIO_STREAM_CNT) { |
| return BAD_VALUE; |
| } |
| return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index); |
| } |
| |
| uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream) |
| { |
| if (mpAudioPolicy == NULL) { |
| return 0; |
| } |
| return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream); |
| } |
| |
| uint32_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream) |
| { |
| if (mpAudioPolicy == NULL) { |
| return 0; |
| } |
| return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream); |
| } |
| |
| audio_io_handle_t AudioPolicyService::getOutputForEffect(effect_descriptor_t *desc) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc); |
| } |
| |
| status_t AudioPolicyService::registerEffect(effect_descriptor_t *desc, |
| audio_io_handle_t output, |
| uint32_t strategy, |
| int session, |
| int id) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| return mpAudioPolicy->register_effect(mpAudioPolicy, desc, output, strategy, session, id); |
| } |
| |
| status_t AudioPolicyService::unregisterEffect(int id) |
| { |
| if (mpAudioPolicy == NULL) { |
| return NO_INIT; |
| } |
| return mpAudioPolicy->unregister_effect(mpAudioPolicy, id); |
| } |
| |
| bool AudioPolicyService::isStreamActive(int stream, uint32_t inPastMs) const |
| { |
| if (mpAudioPolicy == NULL) { |
| return 0; |
| } |
| Mutex::Autolock _l(mLock); |
| return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs); |
| } |
| |
| 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", mpAudioPolicy); |
| 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 (mpAudioPolicy) { |
| mpAudioPolicy->dump(mpAudioPolicy, 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); |
| } |
| |
| |
| // ----------- 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 char *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 = String8(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, 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); |
| } |
| |
| /******* helpers for the service_ops callbacks defined below *********/ |
| void AudioPolicyService::setParameters(audio_io_handle_t ioHandle, |
| const char *keyValuePairs, |
| int delayMs) |
| { |
| mAudioCommandThread->parametersCommand((int)ioHandle, keyValuePairs, |
| delayMs); |
| } |
| |
| int AudioPolicyService::setStreamVolume(audio_stream_type_t stream, |
| float volume, |
| audio_io_handle_t output, |
| int delayMs) |
| { |
| return (int)mAudioCommandThread->volumeCommand((int)stream, volume, |
| (int)output, delayMs); |
| } |
| |
| int AudioPolicyService::startTone(audio_policy_tone_t tone, |
| audio_stream_type_t stream) |
| { |
| if (tone != AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION) |
| LOGE("startTone: illegal tone requested (%d)", tone); |
| if (stream != AUDIO_STREAM_VOICE_CALL) |
| LOGE("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); |
| } |
| |
| /* implementation of the interface to the policy manager */ |
| extern "C" { |
| |
| static audio_io_handle_t aps_open_output(void *service, |
| uint32_t *pDevices, |
| uint32_t *pSamplingRate, |
| uint32_t *pFormat, |
| uint32_t *pChannels, |
| uint32_t *pLatencyMs, |
| audio_policy_output_flags_t flags) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) { |
| LOGW("%s: could not get AudioFlinger", __func__); |
| return 0; |
| } |
| |
| return af->openOutput(pDevices, pSamplingRate, pFormat, pChannels, |
| pLatencyMs, flags); |
| } |
| |
| static audio_io_handle_t aps_open_dup_output(void *service, |
| audio_io_handle_t output1, |
| audio_io_handle_t output2) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) { |
| LOGW("%s: could not get AudioFlinger", __func__); |
| return 0; |
| } |
| return af->openDuplicateOutput(output1, output2); |
| } |
| |
| static int aps_close_output(void *service, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) |
| return PERMISSION_DENIED; |
| |
| return af->closeOutput(output); |
| } |
| |
| static int aps_suspend_output(void *service, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) { |
| LOGW("%s: could not get AudioFlinger", __func__); |
| return PERMISSION_DENIED; |
| } |
| |
| return af->suspendOutput(output); |
| } |
| |
| static int aps_restore_output(void *service, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) { |
| LOGW("%s: could not get AudioFlinger", __func__); |
| return PERMISSION_DENIED; |
| } |
| |
| return af->restoreOutput(output); |
| } |
| |
| static audio_io_handle_t aps_open_input(void *service, |
| uint32_t *pDevices, |
| uint32_t *pSamplingRate, |
| uint32_t *pFormat, |
| uint32_t *pChannels, |
| uint32_t acoustics) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) { |
| LOGW("%s: could not get AudioFlinger", __func__); |
| return 0; |
| } |
| |
| return af->openInput(pDevices, pSamplingRate, pFormat, pChannels, |
| acoustics); |
| } |
| |
| static int aps_close_input(void *service, audio_io_handle_t input) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) |
| return PERMISSION_DENIED; |
| |
| return af->closeInput(input); |
| } |
| |
| static int aps_set_stream_output(void *service, audio_stream_type_t stream, |
| audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) |
| return PERMISSION_DENIED; |
| |
| return af->setStreamOutput(stream, output); |
| } |
| |
| static int aps_move_effects(void *service, int session, |
| audio_io_handle_t src_output, |
| audio_io_handle_t dst_output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == NULL) |
| return PERMISSION_DENIED; |
| |
| return af->moveEffects(session, (int)src_output, (int)dst_output); |
| } |
| |
| static char * aps_get_parameters(void *service, audio_io_handle_t io_handle, |
| const char *keys) |
| { |
| String8 result = AudioSystem::getParameters(io_handle, String8(keys)); |
| return strdup(result.string()); |
| } |
| |
| static void aps_set_parameters(void *service, audio_io_handle_t io_handle, |
| const char *kv_pairs, int delay_ms) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); |
| } |
| |
| static int aps_set_stream_volume(void *service, audio_stream_type_t stream, |
| float volume, audio_io_handle_t output, |
| int delay_ms) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->setStreamVolume(stream, volume, output, |
| delay_ms); |
| } |
| |
| static int aps_start_tone(void *service, audio_policy_tone_t tone, |
| audio_stream_type_t stream) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->startTone(tone, stream); |
| } |
| |
| static int aps_stop_tone(void *service) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->stopTone(); |
| } |
| |
| static int aps_set_voice_volume(void *service, float volume, int delay_ms) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->setVoiceVolume(volume, delay_ms); |
| } |
| |
| }; // extern "C" |
| |
| 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, |
| set_stream_output : aps_set_stream_output, |
| 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, |
| }; |
| }; // namespace <unnamed> |
| |
| }; // namespace android |
