vsf_linux_devfs_alsa.c File Reference

#include "shell/sys/linux/vsf_linux_cfg.h"
#include "shell/sys/linux/include/unistd.h"
#include "shell/sys/linux/include/errno.h"
#include "shell/sys/linux/include/poll.h"
#include "shell/sys/linux/include/fcntl.h"
#include "shell/sys/linux/include/sys/mman.h"
#include "shell/sys/linux/include/sys/ioctl.h"
#include <limits.h>
#include <stdint.h>
#include <alsa/sound/type_compat.h>
#include <alsa/sound/uapi/asound.h>

Data Structures
struct	snd_pcm_hw_constraints
struct	pcm_format_data
struct	__snd_pcm_hw_rule
struct	vsf_linux_audio_control_priv_t
struct	vsf_linux_audio_timer_priv_t
struct	vsf_linux_audio_play_priv_t
struct	vsf_linux_audio_capture_priv_t

Macros
#define	__VSF_FS_CLASS_INHERIT__
#define	__VSF_AUDIO_CLASS_INHERIT__
#define	__VSF_MEM_STREAM_CLASS_IMPLEMENT
#define	__VSF_LINUX_FS_CLASS_INHERIT__
#define	__VSF_LINUX_CLASS_INHERIT__
#define	VSF_LINUX_AUDIO_CFG_MIN_PERIOD_US   (20 * 1000)
#define	VSF_LINUX_AUDIO_CFG_MAX_PERIOD_US   (200 * 1000)
#define	VSF_LINUX_AUDIO_CFG_MIN_PERIODS_CNT   2
#define	VSF_LINUX_AUDIO_CFG_MAX_PERIODS_CNT   4

Typedefs
typedef int(*	__snd_pcm_hw_rule_func_t) (struct snd_mask *masks, struct snd_interval *intervals, unsigned int mask, struct __snd_pcm_hw_rule *rule)
typedef struct vsf_linux_audio_control_priv_t	vsf_linux_audio_control_priv_t
typedef struct vsf_linux_audio_timer_priv_t	vsf_linux_audio_timer_priv_t
typedef struct vsf_linux_audio_play_priv_t	vsf_linux_audio_play_priv_t
typedef struct vsf_linux_audio_capture_priv_t	vsf_linux_audio_capture_priv_t

Functions
void	__vsf_linux_rx_stream_init (vsf_linux_stream_priv_t *priv_tx)
void	__vsf_linux_tx_stream_init (vsf_linux_stream_priv_t *priv_rx)
void	__vsf_linux_tx_stream_drain (vsf_linux_stream_priv_t *priv_tx)
void	__vsf_linux_rx_stream_drop (vsf_linux_stream_priv_t *priv_rx)
void	__vsf_linux_tx_stream_drop (vsf_linux_stream_priv_t *priv_tx)
void	__vsf_linux_tx_stream_fini (vsf_linux_stream_priv_t *priv_tx)
void	__vsf_linux_rx_stream_fini (vsf_linux_stream_priv_t *priv_rx)
ssize_t	__vsf_linux_stream_read (vsf_linux_fd_t *sfd, void *buf, size_t count)
ssize_t	__vsf_linux_stream_write (vsf_linux_fd_t *sfd, const void *buf, size_t count)
int	snd_mask_empty (const struct snd_mask *mask)
int	snd_mask_eq (const struct snd_mask *mask, const struct snd_mask *v)
int	snd_mask_test (const struct snd_mask *mask, unsigned int val)
void	snd_mask_reset (struct snd_mask *mask, unsigned int val)
void	snd_mask_intersect (struct snd_mask *mask, const struct snd_mask *v)
int	snd_mask_single (const struct snd_mask *mask)
unsigned int	snd_mask_min (const struct snd_mask *mask)
int	snd_mask_refine (struct snd_mask *mask, const struct snd_mask *v)
int	snd_interval_checkempty (const struct snd_interval *i)
int	snd_interval_value (const struct snd_interval *i)
int	snd_interval_single (const struct snd_interval *i)
int	snd_interval_eq (const struct snd_interval *i1, const struct snd_interval *i2)
int	snd_interval_refine (struct snd_interval *i, const struct snd_interval *v)
int	params_update (struct snd_mask *masks, struct snd_interval *intervals, unsigned int *cmask, unsigned int flags, bool sefl_constraints)
int	vsf_linux_fs_bind_audio_timer (char *path)
int	vsf_linux_fs_bind_audio (char *path, int card_idx, vk_audio_dev_t *audio_dev)

Macro Definition Documentation

__VSF_FS_CLASS_INHERIT__

#define __VSF_FS_CLASS_INHERIT__

__VSF_AUDIO_CLASS_INHERIT__

#define __VSF_AUDIO_CLASS_INHERIT__

__VSF_MEM_STREAM_CLASS_IMPLEMENT

#define __VSF_MEM_STREAM_CLASS_IMPLEMENT

__VSF_LINUX_FS_CLASS_INHERIT__

#define __VSF_LINUX_FS_CLASS_INHERIT__

__VSF_LINUX_CLASS_INHERIT__

#define __VSF_LINUX_CLASS_INHERIT__

VSF_LINUX_AUDIO_CFG_MIN_PERIOD_US

#define VSF_LINUX_AUDIO_CFG_MIN_PERIOD_US   (20 * 1000)

VSF_LINUX_AUDIO_CFG_MAX_PERIOD_US

#define VSF_LINUX_AUDIO_CFG_MAX_PERIOD_US   (200 * 1000)

VSF_LINUX_AUDIO_CFG_MIN_PERIODS_CNT

#define VSF_LINUX_AUDIO_CFG_MIN_PERIODS_CNT   2

VSF_LINUX_AUDIO_CFG_MAX_PERIODS_CNT

#define VSF_LINUX_AUDIO_CFG_MAX_PERIODS_CNT   4

Typedef Documentation

__snd_pcm_hw_rule_func_t

typedef int(* __snd_pcm_hw_rule_func_t) (struct snd_mask *masks, struct snd_interval *intervals, unsigned int mask, struct __snd_pcm_hw_rule *rule)

vsf_linux_audio_control_priv_t

typedef struct vsf_linux_audio_control_priv_t vsf_linux_audio_control_priv_t

vsf_linux_audio_timer_priv_t

typedef struct vsf_linux_audio_timer_priv_t vsf_linux_audio_timer_priv_t

vsf_linux_audio_play_priv_t

typedef struct vsf_linux_audio_play_priv_t vsf_linux_audio_play_priv_t

vsf_linux_audio_capture_priv_t

typedef struct vsf_linux_audio_capture_priv_t vsf_linux_audio_capture_priv_t

Function Documentation

__vsf_linux_rx_stream_init()

void __vsf_linux_rx_stream_init ( vsf_linux_stream_priv_t *  priv_tx )

extern

__vsf_linux_tx_stream_init()

void __vsf_linux_tx_stream_init ( vsf_linux_stream_priv_t *  priv_rx )

extern

__vsf_linux_tx_stream_drain()

void __vsf_linux_tx_stream_drain ( vsf_linux_stream_priv_t *  priv_tx )

extern

__vsf_linux_rx_stream_drop()

void __vsf_linux_rx_stream_drop ( vsf_linux_stream_priv_t *  priv_rx )

extern

__vsf_linux_tx_stream_drop()

void __vsf_linux_tx_stream_drop ( vsf_linux_stream_priv_t *  priv_tx )

extern

__vsf_linux_tx_stream_fini()

void __vsf_linux_tx_stream_fini ( vsf_linux_stream_priv_t *  priv_tx )

extern

__vsf_linux_rx_stream_fini()

void __vsf_linux_rx_stream_fini ( vsf_linux_stream_priv_t *  priv_rx )

extern

__vsf_linux_stream_read()

ssize_t __vsf_linux_stream_read ( vsf_linux_fd_t *  sfd, void *  buf, size_t  count  )

extern

__vsf_linux_stream_write()

ssize_t __vsf_linux_stream_write ( vsf_linux_fd_t *  sfd, const void *  buf, size_t  count  )

extern

snd_mask_empty()

int snd_mask_empty

(

const struct snd_mask *

mask

)

snd_mask_eq()

int snd_mask_eq	(	const struct snd_mask *	mask,
		const struct snd_mask *	v
	)

snd_mask_test()

int snd_mask_test	(	const struct snd_mask *	mask,
		unsigned int	val
	)

snd_mask_reset()

void snd_mask_reset	(	struct snd_mask *	mask,
		unsigned int	val
	)

snd_mask_intersect()

void snd_mask_intersect	(	struct snd_mask *	mask,
		const struct snd_mask *	v
	)

snd_mask_single()

int snd_mask_single

(

const struct snd_mask *

mask

)

snd_mask_min()

unsigned int snd_mask_min

(

const struct snd_mask *

mask

)

snd_mask_refine()

int snd_mask_refine	(	struct snd_mask *	mask,
		const struct snd_mask *	v
	)

snd_interval_checkempty()

int snd_interval_checkempty

(

const struct snd_interval *

i

)

snd_interval_value()

int snd_interval_value

(

const struct snd_interval *

i

)

snd_interval_single()

int snd_interval_single

(

const struct snd_interval *

i

)

snd_interval_eq()

int snd_interval_eq	(	const struct snd_interval *	i1,
		const struct snd_interval *	i2
	)

snd_interval_refine()

int snd_interval_refine	(	struct snd_interval *	i,
		const struct snd_interval *	v
	)

params_update()

int params_update	(	struct snd_mask *	masks,
		struct snd_interval *	intervals,
		unsigned int *	cmask,
		unsigned int	flags,
		bool	sefl_constraints
	)

vsf_linux_fs_bind_audio_timer()

int vsf_linux_fs_bind_audio_timer

(

char *

path

)

vsf_linux_fs_bind_audio()

int vsf_linux_fs_bind_audio	(	char *	path,
		int	card_idx,
		vk_audio_dev_t *	audio_dev
	)