From 56ec4ffcbae8aeac6c5245fc7b825d02e2e6cefd Mon Sep 17 00:00:00 2001 From: Jean-Michel Trivi Date: Fri, 23 Jan 2015 16:45:18 -0800 Subject: Refactor AudioPolicyManager AudioPolicyManager implementation is now split into the following files: files managerdefault/Gains.* class AudioGain class VolumeCurvePoint class StreamDescriptor files managerdefault/Devices.* class DeviceDescriptor class DeviceVector files managerdefault/Ports.* class AudioPort class AudioPortConfig class AudioPatch files managerdefault/IOProfile.* class IOProfile files managerdefault/HwModule.* class HwModule files managerdefault/AudioInputDescriptor.* class AudioInputDescriptor files managerdefault/AudioOutputDescriptor.* class AudioOutputDescriptor All files for libaudiopolicyservice are moved under service/ All files for libaudiopolicymanager are moved under manager/ Change-Id: I43758be1894e37d34db194b51a19ae24461e066e --- services/audiopolicy/service/AudioPolicyService.h | 524 ++++++++++++++++++++++ 1 file changed, 524 insertions(+) create mode 100644 services/audiopolicy/service/AudioPolicyService.h (limited to 'services/audiopolicy/service/AudioPolicyService.h') diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h new file mode 100644 index 0000000..0378384 --- /dev/null +++ b/services/audiopolicy/service/AudioPolicyService.h @@ -0,0 +1,524 @@ +/* + * 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. + */ + +#ifndef ANDROID_AUDIOPOLICYSERVICE_H +#define ANDROID_AUDIOPOLICYSERVICE_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef USE_LEGACY_AUDIO_POLICY +#include +#endif +#include "AudioPolicyEffects.h" +#include "managerdefault/AudioPolicyManager.h" + + +namespace android { + +// ---------------------------------------------------------------------------- + +class AudioPolicyService : + public BinderService, + public BnAudioPolicyService, + public IBinder::DeathRecipient +{ + friend class BinderService; + +public: + // for BinderService + static const char *getServiceName() ANDROID_API { return "media.audio_policy"; } + + virtual status_t dump(int fd, const Vector& args); + + // + // BnAudioPolicyService (see AudioPolicyInterface for method descriptions) + // + + virtual status_t setDeviceConnectionState(audio_devices_t device, + audio_policy_dev_state_t state, + const char *device_address, + const char *device_name); + virtual audio_policy_dev_state_t getDeviceConnectionState( + audio_devices_t device, + const char *device_address); + virtual status_t setPhoneState(audio_mode_t state); + virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config); + virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage); + virtual audio_io_handle_t getOutput(audio_stream_type_t stream, + uint32_t samplingRate = 0, + audio_format_t format = AUDIO_FORMAT_DEFAULT, + audio_channel_mask_t channelMask = 0, + audio_output_flags_t flags = + AUDIO_OUTPUT_FLAG_NONE, + const audio_offload_info_t *offloadInfo = NULL); + virtual status_t getOutputForAttr(const audio_attributes_t *attr, + audio_io_handle_t *output, + audio_session_t session, + audio_stream_type_t *stream, + uint32_t samplingRate = 0, + audio_format_t format = AUDIO_FORMAT_DEFAULT, + audio_channel_mask_t channelMask = 0, + audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, + const audio_offload_info_t *offloadInfo = NULL); + virtual status_t startOutput(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + virtual status_t stopOutput(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + virtual void releaseOutput(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + virtual status_t getInputForAttr(const audio_attributes_t *attr, + audio_io_handle_t *input, + audio_session_t session, + uint32_t samplingRate, + audio_format_t format, + audio_channel_mask_t channelMask, + audio_input_flags_t flags); + virtual status_t startInput(audio_io_handle_t input, + audio_session_t session); + virtual status_t stopInput(audio_io_handle_t input, + audio_session_t session); + virtual void releaseInput(audio_io_handle_t input, + audio_session_t session); + virtual status_t initStreamVolume(audio_stream_type_t stream, + int indexMin, + int indexMax); + virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, + int index, + audio_devices_t device); + virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, + int *index, + audio_devices_t device); + + virtual uint32_t getStrategyForStream(audio_stream_type_t stream); + virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream); + + virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc); + virtual status_t registerEffect(const effect_descriptor_t *desc, + audio_io_handle_t io, + uint32_t strategy, + int session, + int id); + virtual status_t unregisterEffect(int id); + virtual status_t setEffectEnabled(int id, bool enabled); + virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const; + virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) const; + virtual bool isSourceActive(audio_source_t source) const; + + virtual status_t queryDefaultPreProcessing(int audioSession, + effect_descriptor_t *descriptors, + uint32_t *count); + virtual status_t onTransact( + uint32_t code, + const Parcel& data, + Parcel* reply, + uint32_t flags); + + // IBinder::DeathRecipient + virtual void binderDied(const wp& who); + + // RefBase + virtual void onFirstRef(); + + // + // Helpers for the struct audio_policy_service_ops implementation. + // This is used by the audio policy manager for certain operations that + // are implemented by the policy service. + // + virtual void setParameters(audio_io_handle_t ioHandle, + const char *keyValuePairs, + int delayMs); + + virtual status_t setStreamVolume(audio_stream_type_t stream, + float volume, + audio_io_handle_t output, + int delayMs = 0); + virtual status_t startTone(audio_policy_tone_t tone, audio_stream_type_t stream); + virtual status_t stopTone(); + virtual status_t setVoiceVolume(float volume, int delayMs = 0); + virtual bool isOffloadSupported(const audio_offload_info_t &config); + + virtual status_t listAudioPorts(audio_port_role_t role, + audio_port_type_t type, + unsigned int *num_ports, + struct audio_port *ports, + unsigned int *generation); + virtual status_t getAudioPort(struct audio_port *port); + virtual status_t createAudioPatch(const struct audio_patch *patch, + audio_patch_handle_t *handle); + virtual status_t releaseAudioPatch(audio_patch_handle_t handle); + virtual status_t listAudioPatches(unsigned int *num_patches, + struct audio_patch *patches, + unsigned int *generation); + virtual status_t setAudioPortConfig(const struct audio_port_config *config); + + virtual void registerClient(const sp& client); + + virtual status_t acquireSoundTriggerSession(audio_session_t *session, + audio_io_handle_t *ioHandle, + audio_devices_t *device); + + virtual status_t releaseSoundTriggerSession(audio_session_t session); + + virtual audio_mode_t getPhoneState(); + + virtual status_t registerPolicyMixes(Vector mixes, bool registration); + + status_t doStopOutput(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + void doReleaseOutput(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + + status_t clientCreateAudioPatch(const struct audio_patch *patch, + audio_patch_handle_t *handle, + int delayMs); + status_t clientReleaseAudioPatch(audio_patch_handle_t handle, + int delayMs); + virtual status_t clientSetAudioPortConfig(const struct audio_port_config *config, + int delayMs); + + void removeNotificationClient(uid_t uid); + void onAudioPortListUpdate(); + void doOnAudioPortListUpdate(); + void onAudioPatchListUpdate(); + void doOnAudioPatchListUpdate(); + +private: + AudioPolicyService() ANDROID_API; + virtual ~AudioPolicyService(); + + status_t dumpInternals(int fd); + + // Thread used for tone playback and to send audio config commands to audio flinger + // For tone playback, using a separate thread is necessary to avoid deadlock with mLock because + // startTone() and stopTone() are normally called with mLock locked and requesting a tone start + // or stop will cause calls to AudioPolicyService and an attempt to lock mLock. + // For audio config commands, it is necessary because audio flinger requires that the calling + // process (user) has permission to modify audio settings. + class AudioCommandThread : public Thread { + class AudioCommand; + public: + + // commands for tone AudioCommand + enum { + START_TONE, + STOP_TONE, + SET_VOLUME, + SET_PARAMETERS, + SET_VOICE_VOLUME, + STOP_OUTPUT, + RELEASE_OUTPUT, + CREATE_AUDIO_PATCH, + RELEASE_AUDIO_PATCH, + UPDATE_AUDIOPORT_LIST, + UPDATE_AUDIOPATCH_LIST, + SET_AUDIOPORT_CONFIG, + }; + + AudioCommandThread (String8 name, const wp& service); + virtual ~AudioCommandThread(); + + status_t dump(int fd); + + // Thread virtuals + virtual void onFirstRef(); + virtual bool threadLoop(); + + void exit(); + void startToneCommand(ToneGenerator::tone_type type, + audio_stream_type_t stream); + void stopToneCommand(); + status_t volumeCommand(audio_stream_type_t stream, float volume, + audio_io_handle_t output, int delayMs = 0); + status_t parametersCommand(audio_io_handle_t ioHandle, + const char *keyValuePairs, int delayMs = 0); + status_t voiceVolumeCommand(float volume, int delayMs = 0); + void stopOutputCommand(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + void releaseOutputCommand(audio_io_handle_t output, + audio_stream_type_t stream, + audio_session_t session); + status_t sendCommand(sp& command, int delayMs = 0); + void insertCommand_l(sp& command, int delayMs = 0); + status_t createAudioPatchCommand(const struct audio_patch *patch, + audio_patch_handle_t *handle, + int delayMs); + status_t releaseAudioPatchCommand(audio_patch_handle_t handle, + int delayMs); + void updateAudioPortListCommand(); + void updateAudioPatchListCommand(); + status_t setAudioPortConfigCommand(const struct audio_port_config *config, + int delayMs); + void insertCommand_l(AudioCommand *command, int delayMs = 0); + + private: + class AudioCommandData; + + // descriptor for requested tone playback event + class AudioCommand: public RefBase { + + public: + AudioCommand() + : mCommand(-1), mStatus(NO_ERROR), mWaitStatus(false) {} + + void dump(char* buffer, size_t size); + + int mCommand; // START_TONE, STOP_TONE ... + nsecs_t mTime; // time stamp + Mutex mLock; // mutex associated to mCond + Condition mCond; // condition for status return + status_t mStatus; // command status + bool mWaitStatus; // true if caller is waiting for status + sp mParam; // command specific parameter data + }; + + class AudioCommandData: public RefBase { + public: + virtual ~AudioCommandData() {} + protected: + AudioCommandData() {} + }; + + class ToneData : public AudioCommandData { + public: + ToneGenerator::tone_type mType; // tone type (START_TONE only) + audio_stream_type_t mStream; // stream type (START_TONE only) + }; + + class VolumeData : public AudioCommandData { + public: + audio_stream_type_t mStream; + float mVolume; + audio_io_handle_t mIO; + }; + + class ParametersData : public AudioCommandData { + public: + audio_io_handle_t mIO; + String8 mKeyValuePairs; + }; + + class VoiceVolumeData : public AudioCommandData { + public: + float mVolume; + }; + + class StopOutputData : public AudioCommandData { + public: + audio_io_handle_t mIO; + audio_stream_type_t mStream; + audio_session_t mSession; + }; + + class ReleaseOutputData : public AudioCommandData { + public: + audio_io_handle_t mIO; + audio_stream_type_t mStream; + audio_session_t mSession; + }; + + class CreateAudioPatchData : public AudioCommandData { + public: + struct audio_patch mPatch; + audio_patch_handle_t mHandle; + }; + + class ReleaseAudioPatchData : public AudioCommandData { + public: + audio_patch_handle_t mHandle; + }; + + class SetAudioPortConfigData : public AudioCommandData { + public: + struct audio_port_config mConfig; + }; + + Mutex mLock; + Condition mWaitWorkCV; + Vector < sp > mAudioCommands; // list of pending commands + ToneGenerator *mpToneGenerator; // the tone generator + sp mLastCommand; // last processed command (used by dump) + String8 mName; // string used by wake lock fo delayed commands + wp mService; + }; + + class AudioPolicyClient : public AudioPolicyClientInterface + { + public: + AudioPolicyClient(AudioPolicyService *service) : mAudioPolicyService(service) {} + virtual ~AudioPolicyClient() {} + + // + // Audio HW module functions + // + + // loads a HW module. + virtual audio_module_handle_t loadHwModule(const char *name); + + // + // Audio output Control functions + // + + // opens an audio output with the requested parameters. The parameter values can indicate to use the default values + // in case the audio policy manager has no specific requirements for the output being opened. + // When the function returns, the parameter values reflect the actual values used by the audio hardware output stream. + // The audio policy manager can check if the proposed parameters are suitable or not and act accordingly. + virtual status_t openOutput(audio_module_handle_t module, + audio_io_handle_t *output, + audio_config_t *config, + audio_devices_t *devices, + const String8& address, + uint32_t *latencyMs, + audio_output_flags_t flags); + // creates a special output that is duplicated to the two outputs passed as arguments. The duplication is performed by + // a special mixer thread in the AudioFlinger. + virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, audio_io_handle_t output2); + // closes the output stream + virtual status_t closeOutput(audio_io_handle_t output); + // suspends the output. When an output is suspended, the corresponding audio hardware output stream is placed in + // standby and the AudioTracks attached to the mixer thread are still processed but the output mix is discarded. + virtual status_t suspendOutput(audio_io_handle_t output); + // restores a suspended output. + virtual status_t restoreOutput(audio_io_handle_t output); + + // + // Audio input Control functions + // + + // opens an audio input + virtual audio_io_handle_t openInput(audio_module_handle_t module, + audio_io_handle_t *input, + audio_config_t *config, + audio_devices_t *devices, + const String8& address, + audio_source_t source, + audio_input_flags_t flags); + // closes an audio input + virtual status_t closeInput(audio_io_handle_t input); + // + // misc control functions + // + + // set a stream volume for a particular output. For the same user setting, a given stream type can have different volumes + // for each output (destination device) it is attached to. + virtual status_t setStreamVolume(audio_stream_type_t stream, float volume, audio_io_handle_t output, int delayMs = 0); + + // invalidate a stream type, causing a reroute to an unspecified new output + virtual status_t invalidateStream(audio_stream_type_t stream); + + // function enabling to send proprietary informations directly from audio policy manager to audio hardware interface. + virtual void setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs, int delayMs = 0); + // function enabling to receive proprietary informations directly from audio hardware interface to audio policy manager. + virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys); + + // request the playback of a tone on the specified stream: used for instance to replace notification sounds when playing + // over a telephony device during a phone call. + virtual status_t startTone(audio_policy_tone_t tone, audio_stream_type_t stream); + virtual status_t stopTone(); + + // set down link audio volume. + virtual status_t setVoiceVolume(float volume, int delayMs = 0); + + // move effect to the specified output + virtual status_t moveEffects(int session, + audio_io_handle_t srcOutput, + audio_io_handle_t dstOutput); + + /* Create a patch between several source and sink ports */ + virtual status_t createAudioPatch(const struct audio_patch *patch, + audio_patch_handle_t *handle, + int delayMs); + + /* Release a patch */ + virtual status_t releaseAudioPatch(audio_patch_handle_t handle, + int delayMs); + + /* Set audio port configuration */ + virtual status_t setAudioPortConfig(const struct audio_port_config *config, int delayMs); + + virtual void onAudioPortListUpdate(); + virtual void onAudioPatchListUpdate(); + + virtual audio_unique_id_t newAudioUniqueId(); + + private: + AudioPolicyService *mAudioPolicyService; + }; + + // --- Notification Client --- + class NotificationClient : public IBinder::DeathRecipient { + public: + NotificationClient(const sp& service, + const sp& client, + uid_t uid); + virtual ~NotificationClient(); + + void onAudioPortListUpdate(); + void onAudioPatchListUpdate(); + + // IBinder::DeathRecipient + virtual void binderDied(const wp& who); + + private: + NotificationClient(const NotificationClient&); + NotificationClient& operator = (const NotificationClient&); + + const wp mService; + const uid_t mUid; + const sp mAudioPolicyServiceClient; + }; + + // Internal dump utilities. + status_t dumpPermissionDenial(int fd); + + + mutable Mutex mLock; // prevents concurrent access to AudioPolicy manager functions changing + // device connection state or routing + sp mAudioCommandThread; // audio commands thread + sp mTonePlaybackThread; // tone playback thread + sp mOutputCommandThread; // process stop and release output + struct audio_policy_device *mpAudioPolicyDev; + struct audio_policy *mpAudioPolicy; + AudioPolicyInterface *mAudioPolicyManager; + AudioPolicyClient *mAudioPolicyClient; + + DefaultKeyedVector< uid_t, sp > mNotificationClients; + Mutex mNotificationClientsLock; // protects mNotificationClients + // Manage all effects configured in audio_effects.conf + sp mAudioPolicyEffects; + audio_mode_t mPhoneState; +}; + +}; // namespace android + +#endif // ANDROID_AUDIOPOLICYSERVICE_H -- cgit v1.1