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Diffstat (limited to 'wifi/1.6/default/hal_legacy/AudioHardwareInterface.h')
| -rw-r--r-- | wifi/1.6/default/hal_legacy/AudioHardwareInterface.h | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/wifi/1.6/default/hal_legacy/AudioHardwareInterface.h b/wifi/1.6/default/hal_legacy/AudioHardwareInterface.h deleted file mode 100644 index 7befb799af..0000000000 --- a/wifi/1.6/default/hal_legacy/AudioHardwareInterface.h +++ /dev/null @@ -1,296 +0,0 @@ -/* - * Copyright (C) 2007 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_AUDIO_HARDWARE_INTERFACE_H -#define ANDROID_AUDIO_HARDWARE_INTERFACE_H - -#include <stdint.h> -#include <sys/types.h> - -#include <utils/Errors.h> -#include <utils/String16.h> -#include <utils/String8.h> -#include <utils/Vector.h> - -#include <hardware_legacy/AudioSystemLegacy.h> - -#include <hardware/audio.h> -#include <system/audio.h> - -#include <cutils/bitops.h> - -namespace android_audio_legacy { -using android::String16; -using android::String8; -using android::Vector; - -// ---------------------------------------------------------------------------- - -/** - * AudioStreamOut is the abstraction interface for the audio output hardware. - * - * It provides information about various properties of the audio output hardware driver. - */ -class AudioStreamOut { - public: - virtual ~AudioStreamOut() = 0; - - /** return audio sampling rate in hz - eg. 44100 */ - virtual uint32_t sampleRate() const = 0; - - /** returns size of output buffer - eg. 4800 */ - virtual size_t bufferSize() const = 0; - - /** - * returns the output channel mask - */ - virtual uint32_t channels() const = 0; - - /** - * return audio format in 8bit or 16bit PCM format - - * eg. AudioSystem:PCM_16_BIT - */ - virtual int format() const = 0; - - /** - * return the frame size (number of bytes per sample). - */ - uint32_t frameSize() const { - return audio_channel_count_from_out_mask(channels()) * - ((format() == AUDIO_FORMAT_PCM_16_BIT) ? sizeof(int16_t) : sizeof(int8_t)); - } - - /** - * return the audio hardware driver latency in milli seconds. - */ - virtual uint32_t latency() const = 0; - - /** - * Use this method in situations where audio mixing is done in the - * hardware. This method serves as a direct interface with hardware, - * allowing you to directly set the volume as apposed to via the framework. - * This method might produce multiple PCM outputs or hardware accelerated - * codecs, such as MP3 or AAC. - */ - virtual status_t setVolume(float left, float right) = 0; - - /** write audio buffer to driver. Returns number of bytes written */ - virtual ssize_t write(const void* buffer, size_t bytes) = 0; - - /** - * Put the audio hardware output into standby mode. Returns - * status based on include/utils/Errors.h - */ - virtual status_t standby() = 0; - - /** dump the state of the audio output device */ - virtual status_t dump(int fd, const Vector<String16>& args) = 0; - - // set/get audio output parameters. The function accepts a list of parameters - // key value pairs in the form: key1=value1;key2=value2;... - // Some keys are reserved for standard parameters (See AudioParameter class). - // If the implementation does not accept a parameter change while the output is - // active but the parameter is acceptable otherwise, it must return INVALID_OPERATION. - // The audio flinger will put the output in standby and then change the parameter value. - virtual status_t setParameters(const String8& keyValuePairs) = 0; - virtual String8 getParameters(const String8& keys) = 0; - - // return the number of audio frames written by the audio dsp to DAC since - // the output has exited standby - virtual status_t getRenderPosition(uint32_t* dspFrames) = 0; - - /** - * get the local time at which the next write to the audio driver will be - * presented - */ - virtual status_t getNextWriteTimestamp(int64_t* timestamp); - - /** - * Return a recent count of the number of audio frames presented to an external observer. - */ - virtual status_t getPresentationPosition(uint64_t* frames, struct timespec* timestamp); -}; - -/** - * AudioStreamIn is the abstraction interface for the audio input hardware. - * - * It defines the various properties of the audio hardware input driver. - */ -class AudioStreamIn { - public: - virtual ~AudioStreamIn() = 0; - - /** return audio sampling rate in hz - eg. 44100 */ - virtual uint32_t sampleRate() const = 0; - - /** return the input buffer size allowed by audio driver */ - virtual size_t bufferSize() const = 0; - - /** return input channel mask */ - virtual uint32_t channels() const = 0; - - /** - * return audio format in 8bit or 16bit PCM format - - * eg. AudioSystem:PCM_16_BIT - */ - virtual int format() const = 0; - - /** - * return the frame size (number of bytes per sample). - */ - uint32_t frameSize() const { - return audio_channel_count_from_in_mask(channels()) * - ((format() == AudioSystem::PCM_16_BIT) ? sizeof(int16_t) : sizeof(int8_t)); - } - - /** set the input gain for the audio driver. This method is for - * for future use */ - virtual status_t setGain(float gain) = 0; - - /** read audio buffer in from audio driver */ - virtual ssize_t read(void* buffer, ssize_t bytes) = 0; - - /** dump the state of the audio input device */ - virtual status_t dump(int fd, const Vector<String16>& args) = 0; - - /** - * Put the audio hardware input into standby mode. Returns - * status based on include/utils/Errors.h - */ - virtual status_t standby() = 0; - - // set/get audio input parameters. The function accepts a list of parameters - // key value pairs in the form: key1=value1;key2=value2;... - // Some keys are reserved for standard parameters (See AudioParameter class). - // If the implementation does not accept a parameter change while the output is - // active but the parameter is acceptable otherwise, it must return INVALID_OPERATION. - // The audio flinger will put the input in standby and then change the parameter value. - virtual status_t setParameters(const String8& keyValuePairs) = 0; - virtual String8 getParameters(const String8& keys) = 0; - - // Return the number of input frames lost in the audio driver since the last call of this - // function. Audio driver is expected to reset the value to 0 and restart counting upon - // returning the current value by this function call. Such loss typically occurs when the user - // space process is blocked longer than the capacity of audio driver buffers. Unit: the number - // of input audio frames - virtual unsigned int getInputFramesLost() const = 0; - - virtual status_t addAudioEffect(effect_handle_t effect) = 0; - virtual status_t removeAudioEffect(effect_handle_t effect) = 0; -}; - -/** - * AudioHardwareInterface.h defines the interface to the audio hardware abstraction layer. - * - * The interface supports setting and getting parameters, selecting audio routing - * paths, and defining input and output streams. - * - * AudioFlinger initializes the audio hardware and immediately opens an output stream. - * You can set Audio routing to output to handset, speaker, Bluetooth, or a headset. - * - * The audio input stream is initialized when AudioFlinger is called to carry out - * a record operation. - */ -class AudioHardwareInterface { - public: - virtual ~AudioHardwareInterface() {} - - /** - * check to see if the audio hardware interface has been initialized. - * return status based on values defined in include/utils/Errors.h - */ - virtual status_t initCheck() = 0; - - /** set the audio volume of a voice call. Range is between 0.0 and 1.0 */ - virtual status_t setVoiceVolume(float volume) = 0; - - /** - * set the audio volume for all audio activities other than voice call. - * Range between 0.0 and 1.0. If any value other than NO_ERROR is returned, - * the software mixer will emulate this capability. - */ - virtual status_t setMasterVolume(float volume) = 0; - - /** - * Get the current master volume value for the HAL, if the HAL supports - * master volume control. AudioFlinger will query this value from the - * primary audio HAL when the service starts and use the value for setting - * the initial master volume across all HALs. - */ - virtual status_t getMasterVolume(float* volume) = 0; - - /** - * setMode is called when the audio mode changes. NORMAL mode is for - * standard audio playback, RINGTONE when a ringtone is playing, and IN_CALL - * when a call is in progress. - */ - virtual status_t setMode(int mode) = 0; - - // mic mute - virtual status_t setMicMute(bool state) = 0; - virtual status_t getMicMute(bool* state) = 0; - - // set/get global audio parameters - virtual status_t setParameters(const String8& keyValuePairs) = 0; - virtual String8 getParameters(const String8& keys) = 0; - - // Returns audio input buffer size according to parameters passed or 0 if one of the - // parameters is not supported - virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount) = 0; - - /** This method creates and opens the audio hardware output stream */ - virtual AudioStreamOut* openOutputStream(uint32_t devices, int* format = 0, - uint32_t* channels = 0, uint32_t* sampleRate = 0, - status_t* status = 0) = 0; - virtual AudioStreamOut* openOutputStreamWithFlags( - uint32_t devices, audio_output_flags_t flags = (audio_output_flags_t)0, int* format = 0, - uint32_t* channels = 0, uint32_t* sampleRate = 0, status_t* status = 0) = 0; - virtual void closeOutputStream(AudioStreamOut* out) = 0; - - /** This method creates and opens the audio hardware input stream */ - virtual AudioStreamIn* openInputStream(uint32_t devices, int* format, uint32_t* channels, - uint32_t* sampleRate, status_t* status, - AudioSystem::audio_in_acoustics acoustics) = 0; - virtual void closeInputStream(AudioStreamIn* in) = 0; - - /**This method dumps the state of the audio hardware */ - virtual status_t dumpState(int fd, const Vector<String16>& args) = 0; - - virtual status_t setMasterMute(bool muted) = 0; - - static AudioHardwareInterface* create(); - - virtual int createAudioPatch(unsigned int num_sources, const struct audio_port_config* sources, - unsigned int num_sinks, const struct audio_port_config* sinks, - audio_patch_handle_t* handle) = 0; - - virtual int releaseAudioPatch(audio_patch_handle_t handle) = 0; - - virtual int getAudioPort(struct audio_port* port) = 0; - - virtual int setAudioPortConfig(const struct audio_port_config* config) = 0; - - protected: - virtual status_t dump(int fd, const Vector<String16>& args) = 0; -}; - -// ---------------------------------------------------------------------------- - -extern "C" AudioHardwareInterface* createAudioHardware(void); - -}; // namespace android_audio_legacy - -#endif // ANDROID_AUDIO_HARDWARE_INTERFACE_H |