audio.c File Reference

#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/usb.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "device.h"
#include "audio.h"

Go to the source code of this file.

Macros
#define	N_URBS   32
#define	CLOCK_DRIFT_TOLERANCE   5
#define	FRAMES_PER_URB   8
#define	BYTES_PER_FRAME   512
#define	CHANNELS_PER_STREAM   2
#define	BYTES_PER_SAMPLE   3
#define	BYTES_PER_SAMPLE_USB   4
#define	MAX_BUFFER_SIZE   (128*1024)
#define	MAX_ENDPOINT_SIZE   512
#define	ENDPOINT_CAPTURE   2
#define	ENDPOINT_PLAYBACK   6
#define	MAKE_CHECKBYTE(dev, stream, i)   (stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)

Functions
int	snd_usb_caiaq_audio_init (struct snd_usb_caiaqdev *dev)
void	snd_usb_caiaq_audio_free (struct snd_usb_caiaqdev *dev)

Macro Definition Documentation

#define BYTES_PER_FRAME   512

Definition at line 32 of file audio.c.

#define BYTES_PER_SAMPLE   3

Definition at line 34 of file audio.c.

#define BYTES_PER_SAMPLE_USB   4

Definition at line 35 of file audio.c.

#define CHANNELS_PER_STREAM   2

Definition at line 33 of file audio.c.

#define CLOCK_DRIFT_TOLERANCE   5

Definition at line 30 of file audio.c.

#define ENDPOINT_CAPTURE   2

Definition at line 39 of file audio.c.

#define ENDPOINT_PLAYBACK   6

Definition at line 40 of file audio.c.

#define FRAMES_PER_URB   8

Definition at line 31 of file audio.c.

#define MAKE_CHECKBYTE	(		dev,
			stream,
			i
	)		(stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)

Definition at line 42 of file audio.c.

#define MAX_BUFFER_SIZE   (128*1024)

Definition at line 36 of file audio.c.

#define MAX_ENDPOINT_SIZE   512

Definition at line 37 of file audio.c.

#define N_URBS   32

Definition at line 29 of file audio.c.

Function Documentation

void snd_usb_caiaq_audio_free

(

struct snd_usb_caiaqdev *

dev

)

Definition at line 881 of file audio.c.

int snd_usb_caiaq_audio_init

(

struct snd_usb_caiaqdev *

dev

)

Definition at line 783 of file audio.c.