cx23885-vbi.c File Reference

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include "cx23885.h"

Go to the source code of this file.

Macros
#define	dprintk(level, fmt, arg...)
#define	VBI_LINE_LENGTH   1440
#define	NTSC_VBI_START_LINE   10 /* line 10 - 21 */
#define	NTSC_VBI_END_LINE   21
#define	NTSC_VBI_LINES   (NTSC_VBI_END_LINE - NTSC_VBI_START_LINE + 1)
#define	VBI_LINE_LENGTH   1440
#define	VBI_LINE_COUNT   17

Functions
	module_param (vbibufs, int, 0644)
	MODULE_PARM_DESC (vbibufs,"number of vbi buffers, range 2-32")
	module_param (vbi_debug, int, 0644)
	MODULE_PARM_DESC (vbi_debug,"enable debug messages [vbi]")
int	cx23885_vbi_fmt (struct file *file, void *priv, struct v4l2_format *f)
int	cx23885_vbi_irq (struct cx23885_dev *dev, u32 status)
int	cx23885_restart_vbi_queue (struct cx23885_dev *dev, struct cx23885_dmaqueue *q)
void	cx23885_vbi_timeout (unsigned long data)

Variables
struct videobuf_queue_ops	cx23885_vbi_qops

Macro Definition Documentation

#define dprintk	(		level,
			fmt,
			arg...
	)

Value:

do { if (vbi_debug >= level)\
        printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
    } while (0)

Definition at line 37 of file cx23885-vbi.c.

#define NTSC_VBI_END_LINE   21

Definition at line 46 of file cx23885-vbi.c.

#define NTSC_VBI_LINES   (NTSC_VBI_END_LINE - NTSC_VBI_START_LINE + 1)

Definition at line 47 of file cx23885-vbi.c.

#define NTSC_VBI_START_LINE   10 /* line 10 - 21 */

Definition at line 45 of file cx23885-vbi.c.

#define VBI_LINE_COUNT   17

Definition at line 184 of file cx23885-vbi.c.

#define VBI_LINE_LENGTH   1440

Definition at line 183 of file cx23885-vbi.c.

#define VBI_LINE_LENGTH   1440

Definition at line 183 of file cx23885-vbi.c.

Function Documentation

int cx23885_restart_vbi_queue	(	struct cx23885_dev *	dev,
		struct cx23885_dmaqueue *	q
	)

Definition at line 137 of file cx23885-vbi.c.

int cx23885_vbi_fmt	(	struct file *	file,
		void *	priv,
		struct v4l2_format *	f
	)

Definition at line 50 of file cx23885-vbi.c.

int cx23885_vbi_irq	(	struct cx23885_dev *	dev,
		u32	status
	)

Definition at line 83 of file cx23885-vbi.c.

void cx23885_vbi_timeout

(

unsigned long

data

)

Definition at line 158 of file cx23885-vbi.c.

module_param	(	vbibufs	,
		int	,
		0644
	)

module_param	(	vbi_debug	,
		int	,
		0644
	)

MODULE_PARM_DESC	(	vbibufs	,
		"number of vbi	buffers,
		range 2-32"
	)

MODULE_PARM_DESC	(	vbi_debug	,
		"enable debug messages "	[vbi]
	)

Variable Documentation

struct videobuf_queue_ops cx23885_vbi_qops

Initial value:

= {
    .buf_setup    = vbi_setup,
    .buf_prepare  = vbi_prepare,
    .buf_queue    = vbi_queue,
    .buf_release  = vbi_release,
}

Definition at line 283 of file cx23885-vbi.c.