34 Mutex AudioSystem::gLock;
35 Mutex AudioSystem::gLockCache;
36 Mutex AudioSystem::gLockAPS;
37 Mutex AudioSystem::gLockAPC;
38 sp<IAudioFlinger> AudioSystem::gAudioFlinger;
39 sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient;
40 audio_error_callback AudioSystem::gAudioErrorCallback = NULL;
43 DefaultKeyedVector<audio_io_handle_t, AudioSystem::OutputDescriptor *> AudioSystem::gOutputs(NULL);
46 uint32_t AudioSystem::gPrevInSamplingRate;
47 audio_format_t AudioSystem::gPrevInFormat;
48 audio_channel_mask_t AudioSystem::gPrevInChannelMask;
49 size_t AudioSystem::gInBuffSize = 0;    // zero indicates cache is invalid
51 sp<AudioSystem::AudioPortCallback> AudioSystem::gAudioPortCallback;
54 const sp<IAudioFlinger> AudioSystem::get_audio_flinger()  in get_audio_flinger()
90 /* static */ status_t AudioSystem::checkAudioFlinger()  in checkAudioFlinger()
98 status_t AudioSystem::muteMicrophone(bool state)  in muteMicrophone()
100     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in muteMicrophone()
105 status_t AudioSystem::isMicrophoneMuted(bool* state)  in isMicrophoneMuted()
107     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in isMicrophoneMuted()
113 status_t AudioSystem::setMasterVolume(float value)  in setMasterVolume()
115     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setMasterVolume()
121 status_t AudioSystem::setMasterMute(bool mute)  in setMasterMute()
123     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setMasterMute()
129 status_t AudioSystem::getMasterVolume(float* volume)  in getMasterVolume()
131     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getMasterVolume()
137 status_t AudioSystem::getMasterMute(bool* mute)  in getMasterMute()
139     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getMasterMute()
145 status_t AudioSystem::setStreamVolume(audio_stream_type_t stream, float value,  in setStreamVolume()
149     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setStreamVolume()
155 status_t AudioSystem::setStreamMute(audio_stream_type_t stream, bool mute)  in setStreamMute()
158     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setStreamMute()
164 status_t AudioSystem::getStreamVolume(audio_stream_type_t stream, float* volume,  in getStreamVolume()
168     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getStreamVolume()
174 status_t AudioSystem::getStreamMute(audio_stream_type_t stream, bool* mute)  in getStreamMute()
177     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getStreamMute()
183 status_t AudioSystem::setMode(audio_mode_t mode)  in setMode()
186     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setMode()
191 status_t AudioSystem::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)  in setParameters()
193     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setParameters()
198 String8 AudioSystem::getParameters(audio_io_handle_t ioHandle, const String8& keys)  in getParameters()
200     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getParameters()
208 status_t AudioSystem::setParameters(const String8& keyValuePairs)  in setParameters()
213 String8 AudioSystem::getParameters(const String8& keys)  in getParameters()
226 float AudioSystem::linearToLog(int volume)  in linearToLog()
234 int AudioSystem::logToLinear(float volume)  in logToLinear()
242 status_t AudioSystem::getOutputSamplingRate(uint32_t* samplingRate, audio_stream_type_t streamType)  in getOutputSamplingRate()
258 status_t AudioSystem::getSamplingRate(audio_io_handle_t output,  in getSamplingRate()
261     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getSamplingRate()
266     OutputDescriptor *outputDesc = AudioSystem::gOutputs.valueFor(output);  in getSamplingRate()
286 status_t AudioSystem::getOutputFrameCount(size_t* frameCount, audio_stream_type_t streamType)  in getOutputFrameCount()
302 status_t AudioSystem::getFrameCount(audio_io_handle_t output,  in getFrameCount()
305     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getFrameCount()
310     OutputDescriptor *outputDesc = AudioSystem::gOutputs.valueFor(output);  in getFrameCount()
328 status_t AudioSystem::getOutputLatency(uint32_t* latency, audio_stream_type_t streamType)  in getOutputLatency()
344 status_t AudioSystem::getLatency(audio_io_handle_t output,  in getLatency()
347     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getLatency()
352     OutputDescriptor *outputDesc = AudioSystem::gOutputs.valueFor(output);  in getLatency()
366 status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format,  in getInputBufferSize()
369     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getInputBufferSize()
399 status_t AudioSystem::setVoiceVolume(float value)  in setVoiceVolume()
401     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setVoiceVolume()
406 status_t AudioSystem::getRenderPosition(audio_io_handle_t output, uint32_t *halFrames,  in getRenderPosition()
409     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getRenderPosition()
415 uint32_t AudioSystem::getInputFramesLost(audio_io_handle_t ioHandle)  in getInputFramesLost()
417     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getInputFramesLost()
426 audio_unique_id_t AudioSystem::newAudioUniqueId()  in newAudioUniqueId()
428     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in newAudioUniqueId()
433 void AudioSystem::acquireAudioSessionId(int audioSession, pid_t pid)  in acquireAudioSessionId()
435     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in acquireAudioSessionId()
441 void AudioSystem::releaseAudioSessionId(int audioSession, pid_t pid)  in releaseAudioSessionId()
443     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in releaseAudioSessionId()
449 audio_hw_sync_t AudioSystem::getAudioHwSyncForSession(audio_session_t sessionId)  in getAudioHwSyncForSession()
451     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getAudioHwSyncForSession()
458 void AudioSystem::AudioFlingerClient::binderDied(const wp<IBinder>& who __unused)  in binderDied()
462         Mutex::Autolock _l(AudioSystem::gLock);  in binderDied()
463         AudioSystem::gAudioFlinger.clear();  in binderDied()
470         AudioSystem::gOutputs.clear();  in binderDied()
479 void AudioSystem::AudioFlingerClient::ioConfigChanged(int event, audio_io_handle_t ioHandle,  in ioConfigChanged()
487     Mutex::Autolock _l(AudioSystem::gLockCache);  in ioConfigChanged()
543 void AudioSystem::setErrorCallback(audio_error_callback cb)  in setErrorCallback()
551 sp<IAudioPolicyService> AudioSystem::gAudioPolicyService;
552 sp<AudioSystem::AudioPolicyServiceClient> AudioSystem::gAudioPolicyServiceClient;
556 const sp<IAudioPolicyService> AudioSystem::get_audio_policy_service()  in get_audio_policy_service()
591 status_t AudioSystem::setDeviceConnectionState(audio_devices_t device,  in setDeviceConnectionState()
595     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in setDeviceConnectionState()
607 audio_policy_dev_state_t AudioSystem::getDeviceConnectionState(audio_devices_t device,  in getDeviceConnectionState()
610     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getDeviceConnectionState()
616 status_t AudioSystem::setPhoneState(audio_mode_t state)  in setPhoneState()
619     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in setPhoneState()
625 status_t AudioSystem::setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)  in setForceUse()
627     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in setForceUse()
632 audio_policy_forced_cfg_t AudioSystem::getForceUse(audio_policy_force_use_t usage)  in getForceUse()
634     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getForceUse()
640 audio_io_handle_t AudioSystem::getOutput(audio_stream_type_t stream,  in getOutput()
647     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getOutput()
652 status_t AudioSystem::getOutputForAttr(const audio_attributes_t *attr,  in getOutputForAttr()
662     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getOutputForAttr()
669 status_t AudioSystem::startOutput(audio_io_handle_t output,  in startOutput()
673     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in startOutput()
678 status_t AudioSystem::stopOutput(audio_io_handle_t output,  in stopOutput()
682     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in stopOutput()
687 void AudioSystem::releaseOutput(audio_io_handle_t output,  in releaseOutput()
691     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in releaseOutput()
696 status_t AudioSystem::getInputForAttr(const audio_attributes_t *attr,  in getInputForAttr()
704     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getInputForAttr()
709 status_t AudioSystem::startInput(audio_io_handle_t input,  in startInput()
712     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in startInput()
717 status_t AudioSystem::stopInput(audio_io_handle_t input,  in stopInput()
720     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in stopInput()
725 void AudioSystem::releaseInput(audio_io_handle_t input,  in releaseInput()
728     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in releaseInput()
733 status_t AudioSystem::initStreamVolume(audio_stream_type_t stream,  in initStreamVolume()
737     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in initStreamVolume()
742 status_t AudioSystem::setStreamVolumeIndex(audio_stream_type_t stream,  in setStreamVolumeIndex()
746     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in setStreamVolumeIndex()
751 status_t AudioSystem::getStreamVolumeIndex(audio_stream_type_t stream,  in getStreamVolumeIndex()
755     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getStreamVolumeIndex()
760 uint32_t AudioSystem::getStrategyForStream(audio_stream_type_t stream)  in getStrategyForStream()
762     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getStrategyForStream()
767 audio_devices_t AudioSystem::getDevicesForStream(audio_stream_type_t stream)  in getDevicesForStream()
769     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getDevicesForStream()
774 audio_io_handle_t AudioSystem::getOutputForEffect(const effect_descriptor_t *desc)  in getOutputForEffect()
776     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getOutputForEffect()
782 status_t AudioSystem::registerEffect(const effect_descriptor_t *desc,  in registerEffect()
788     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in registerEffect()
793 status_t AudioSystem::unregisterEffect(int id)  in unregisterEffect()
795     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in unregisterEffect()
800 status_t AudioSystem::setEffectEnabled(int id, bool enabled)  in setEffectEnabled()
802     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in setEffectEnabled()
807 status_t AudioSystem::isStreamActive(audio_stream_type_t stream, bool* state, uint32_t inPastMs)  in isStreamActive()
809     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in isStreamActive()
816 status_t AudioSystem::isStreamActiveRemotely(audio_stream_type_t stream, bool* state,  in isStreamActiveRemotely()
819     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in isStreamActiveRemotely()
826 status_t AudioSystem::isSourceActive(audio_source_t stream, bool* state)  in isSourceActive()
828     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in isSourceActive()
835 uint32_t AudioSystem::getPrimaryOutputSamplingRate()  in getPrimaryOutputSamplingRate()
837     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getPrimaryOutputSamplingRate()
842 size_t AudioSystem::getPrimaryOutputFrameCount()  in getPrimaryOutputFrameCount()
844     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in getPrimaryOutputFrameCount()
849 status_t AudioSystem::setLowRamDevice(bool isLowRamDevice)  in setLowRamDevice()
851     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();  in setLowRamDevice()
856 void AudioSystem::clearAudioConfigCache()  in clearAudioConfigCache()
875 bool AudioSystem::isOffloadSupported(const audio_offload_info_t& info)  in isOffloadSupported()
878     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in isOffloadSupported()
883 status_t AudioSystem::listAudioPorts(audio_port_role_t role,  in listAudioPorts()
889     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in listAudioPorts()
894 status_t AudioSystem::getAudioPort(struct audio_port *port)  in getAudioPort()
896     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getAudioPort()
901 status_t AudioSystem::createAudioPatch(const struct audio_patch *patch,  in createAudioPatch()
904     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in createAudioPatch()
909 status_t AudioSystem::releaseAudioPatch(audio_patch_handle_t handle)  in releaseAudioPatch()
911     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in releaseAudioPatch()
916 status_t AudioSystem::listAudioPatches(unsigned int *num_patches,  in listAudioPatches()
920     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in listAudioPatches()
925 status_t AudioSystem::setAudioPortConfig(const struct audio_port_config *config)  in setAudioPortConfig()
927     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in setAudioPortConfig()
932 void AudioSystem::setAudioPortCallback(sp<AudioPortCallback> callBack)  in setAudioPortCallback()
938 status_t AudioSystem::acquireSoundTriggerSession(audio_session_t *session,  in acquireSoundTriggerSession()
942     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in acquireSoundTriggerSession()
947 status_t AudioSystem::releaseSoundTriggerSession(audio_session_t session)  in releaseSoundTriggerSession()
949     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in releaseSoundTriggerSession()
954 audio_mode_t AudioSystem::getPhoneState()  in getPhoneState()
956     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in getPhoneState()
961 status_t AudioSystem::registerPolicyMixes(Vector<AudioMix> mixes, bool registration)  in registerPolicyMixes()
963     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();  in registerPolicyMixes()
970 void AudioSystem::AudioPolicyServiceClient::binderDied(const wp<IBinder>& who __unused)  in binderDied()
980         AudioSystem::gAudioPolicyService.clear();  in binderDied()
986 void AudioSystem::AudioPolicyServiceClient::onAudioPortListUpdate()  in onAudioPortListUpdate()
994 void AudioSystem::AudioPolicyServiceClient::onAudioPatchListUpdate()  in onAudioPatchListUpdate()