#include <compress_driver.h>

Data Fields
int(*	open )(struct snd_compr_stream *stream)

int(*	free )(struct snd_compr_stream *stream)

int(*	set_params )(struct snd_compr_stream stream, struct snd_compr_params params)

int(*	get_params )(struct snd_compr_stream stream, struct snd_codec params)

int(*	trigger )(struct snd_compr_stream *stream, int cmd)

int(*	pointer )(struct snd_compr_stream stream, struct snd_compr_tstamp tstamp)

int(*	copy )(struct snd_compr_stream stream, const char __user buf, size_t count)

int(*	mmap )(struct snd_compr_stream stream, struct vm_area_struct vma)

int(*	ack )(struct snd_compr_stream *stream, size_t bytes)

int(*	get_caps )(struct snd_compr_stream stream, struct snd_compr_caps caps)

int(*	get_codec_caps )(struct snd_compr_stream stream, struct snd_compr_codec_caps codec)

Detailed Description

struct snd_compr_ops: compressed path DSP operations : Open the compressed stream This callback is mandatory and shall keep dsp ready to receive the stream parameter : Close the compressed stream, mandatory : Sets the compressed stream parameters, mandatory This can be called in during stream creation only to set codec params and the stream properties : retrieve the codec parameters, mandatory : Trigger operations like start, pause, resume, drain, stop. This callback is mandatory : Retrieve current h/w pointer information. Mandatory : Copy the compressed data to/from userspace, Optional Can't be implemented if DSP supports mmap : DSP mmap method to mmap DSP memory : Ack for DSP when data is written to audio buffer, Optional Not valid if copy is implemented : Retrieve DSP capabilities, mandatory : Retrieve capabilities for a specific codec, mandatory

Definition at line 106 of file compress_driver.h.