videobuf-vmalloc.c File Reference

#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <media/videobuf-vmalloc.h>

Go to the source code of this file.

Macros
#define	MAGIC_DMABUF   0x17760309
#define	MAGIC_VMAL_MEM   0x18221223
#define	MAGIC_CHECK(is, should)
#define	dprintk(level, fmt, arg...)

Functions
	module_param (debug, int, 0644)
	MODULE_DESCRIPTION ("helper module to manage video4linux vmalloc buffers")
	MODULE_AUTHOR ("Mauro Carvalho Chehab <[email protected]>")
	MODULE_LICENSE ("GPL")
void	videobuf_queue_vmalloc_init (struct videobuf_queue *q, const struct videobuf_queue_ops *ops, struct device *dev, spinlock_t *irqlock, enum v4l2_buf_type type, enum v4l2_field field, unsigned int msize, void *priv, struct mutex *ext_lock)
	EXPORT_SYMBOL_GPL (videobuf_queue_vmalloc_init)
void *	videobuf_to_vmalloc (struct videobuf_buffer *buf)
	EXPORT_SYMBOL_GPL (videobuf_to_vmalloc)
void	videobuf_vmalloc_free (struct videobuf_buffer *buf)
	EXPORT_SYMBOL_GPL (videobuf_vmalloc_free)

Macro Definition Documentation

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

Value:

if (debug >= level)                     \
        printk(KERN_DEBUG "vbuf-vmalloc: " fmt , ## arg)

Definition at line 47 of file videobuf-vmalloc.c.

#define MAGIC_CHECK	(		is,
			should
	)

Value:

if (unlikely((is) != (should))) {               \
        printk(KERN_ERR "magic mismatch: %x (expected %x)\n",   \
                is, should);                \
        BUG();                          \
    }

Definition at line 33 of file videobuf-vmalloc.c.

#define MAGIC_DMABUF   0x17760309

Definition at line 30 of file videobuf-vmalloc.c.

#define MAGIC_VMAL_MEM   0x18221223

Definition at line 31 of file videobuf-vmalloc.c.

Function Documentation

EXPORT_SYMBOL_GPL

(

videobuf_queue_vmalloc_init

)

EXPORT_SYMBOL_GPL

(

videobuf_to_vmalloc

)

EXPORT_SYMBOL_GPL

(

videobuf_vmalloc_free

)

MODULE_AUTHOR

(

"Mauro Carvalho Chehab <[email protected]>"

)

MODULE_DESCRIPTION

(

"helper module to manage video4linux vmalloc buffers"

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	debug	,
		int	,
		0644
	)

void videobuf_queue_vmalloc_init	(	struct videobuf_queue *	q,
		const struct videobuf_queue_ops *	ops,
		struct device *	dev,
		spinlock_t *	irqlock,
		enum v4l2_buf_type	type,
		enum v4l2_field	field,
		unsigned int	msize,
		void *	priv,
		struct mutex *	ext_lock
	)

Definition at line 300 of file videobuf-vmalloc.c.

void* videobuf_to_vmalloc

(

struct videobuf_buffer *

buf

)

Definition at line 315 of file videobuf-vmalloc.c.

void videobuf_vmalloc_free

(

struct videobuf_buffer *

buf

)

Definition at line 325 of file videobuf-vmalloc.c.