videobuf-core.h File Reference

#include <linux/poll.h>
#include <linux/videodev2.h>

Go to the source code of this file.

Data Structures
struct	videobuf_mapping
struct	videobuf_buffer
struct	videobuf_queue_ops
struct	videobuf_qtype_ops
struct	videobuf_queue

Macros
#define	UNSET   (-1U)
#define	MAGIC_QTYPE_OPS   0x12261003

Enumerations
enum	videobuf_state {   VIDEOBUF_NEEDS_INIT = 0, VIDEOBUF_PREPARED = 1, VIDEOBUF_QUEUED = 2, VIDEOBUF_ACTIVE = 3,   VIDEOBUF_DONE = 4, VIDEOBUF_ERROR = 5, VIDEOBUF_IDLE = 6 }

Functions
int	videobuf_waiton (struct videobuf_queue *q, struct videobuf_buffer *vb, int non_blocking, int intr)
int	videobuf_iolock (struct videobuf_queue *q, struct videobuf_buffer *vb, struct v4l2_framebuffer *fbuf)
struct videobuf_buffer *	videobuf_alloc_vb (struct videobuf_queue *q)
void *	videobuf_queue_to_vaddr (struct videobuf_queue *q, struct videobuf_buffer *buf)
void	videobuf_queue_core_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 videobuf_qtype_ops *int_ops, struct mutex *ext_lock)
int	videobuf_queue_is_busy (struct videobuf_queue *q)
void	videobuf_queue_cancel (struct videobuf_queue *q)
enum v4l2_field	videobuf_next_field (struct videobuf_queue *q)
int	videobuf_reqbufs (struct videobuf_queue *q, struct v4l2_requestbuffers *req)
int	videobuf_querybuf (struct videobuf_queue *q, struct v4l2_buffer *b)
int	videobuf_qbuf (struct videobuf_queue *q, struct v4l2_buffer *b)
int	videobuf_dqbuf (struct videobuf_queue *q, struct v4l2_buffer *b, int nonblocking)
int	videobuf_streamon (struct videobuf_queue *q)
int	videobuf_streamoff (struct videobuf_queue *q)
void	videobuf_stop (struct videobuf_queue *q)
int	videobuf_read_start (struct videobuf_queue *q)
void	videobuf_read_stop (struct videobuf_queue *q)
ssize_t	videobuf_read_stream (struct videobuf_queue *q, char __user *data, size_t count, loff_t *ppos, int vbihack, int nonblocking)
ssize_t	videobuf_read_one (struct videobuf_queue *q, char __user *data, size_t count, loff_t *ppos, int nonblocking)
unsigned int	videobuf_poll_stream (struct file *file, struct videobuf_queue *q, poll_table *wait)
int	videobuf_mmap_setup (struct videobuf_queue *q, unsigned int bcount, unsigned int bsize, enum v4l2_memory memory)
int	__videobuf_mmap_setup (struct videobuf_queue *q, unsigned int bcount, unsigned int bsize, enum v4l2_memory memory)
int	videobuf_mmap_free (struct videobuf_queue *q)
int	videobuf_mmap_mapper (struct videobuf_queue *q, struct vm_area_struct *vma)

Macro Definition Documentation

#define MAGIC_QTYPE_OPS   0x12261003

Definition at line 117 of file videobuf-core.h.

#define UNSET   (-1U)

Definition at line 22 of file videobuf-core.h.

Enumeration Type Documentation

enum videobuf_state

Enumerator:

VIDEOBUF_NEEDS_INIT
VIDEOBUF_PREPARED
VIDEOBUF_QUEUED
VIDEOBUF_ACTIVE
VIDEOBUF_DONE
VIDEOBUF_ERROR
VIDEOBUF_IDLE

Definition at line 56 of file videobuf-core.h.

Function Documentation

int __videobuf_mmap_setup	(	struct videobuf_queue *	q,
		unsigned int	bcount,
		unsigned int	bsize,
		enum v4l2_memory	memory
	)

Definition at line 379 of file videobuf-core.c.

struct videobuf_buffer* videobuf_alloc_vb ( struct videobuf_queue *  q )

read

Definition at line 55 of file videobuf-core.c.

int videobuf_dqbuf	(	struct videobuf_queue *	q,
		struct v4l2_buffer *	b,
		int	nonblocking
	)

Definition at line 688 of file videobuf-core.c.

int videobuf_iolock	(	struct videobuf_queue *	q,
		struct videobuf_buffer *	vb,
		struct v4l2_framebuffer *	fbuf
	)

Definition at line 119 of file videobuf-core.c.

int videobuf_mmap_free

(

struct videobuf_queue *

q

)

Definition at line 368 of file videobuf-core.c.

int videobuf_mmap_mapper	(	struct videobuf_queue *	q,
		struct vm_area_struct *	vma
	)

Definition at line 1163 of file videobuf-core.c.

int videobuf_mmap_setup	(	struct videobuf_queue *	q,
		unsigned int	bcount,
		unsigned int	bsize,
		enum v4l2_memory	memory
	)

Definition at line 422 of file videobuf-core.c.

enum v4l2_field videobuf_next_field

(

struct videobuf_queue *

q

)

Definition at line 296 of file videobuf-core.c.

unsigned int videobuf_poll_stream	(	struct file *	file,
		struct videobuf_queue *	q,
		poll_table *	wait
	)

Definition at line 1112 of file videobuf-core.c.

int videobuf_qbuf	(	struct videobuf_queue *	q,
		struct v4l2_buffer *	b
	)

Definition at line 521 of file videobuf-core.c.

int videobuf_querybuf	(	struct videobuf_queue *	q,
		struct v4l2_buffer *	b
	)

Definition at line 494 of file videobuf-core.c.

void videobuf_queue_cancel

(

struct videobuf_queue *

q

)

Definition at line 261 of file videobuf-core.c.

void videobuf_queue_core_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 videobuf_qtype_ops *	int_ops,
		struct mutex *	ext_lock
	)

Definition at line 141 of file videobuf-core.c.

int videobuf_queue_is_busy

(

struct videobuf_queue *

q

)

Definition at line 183 of file videobuf-core.c.

void* videobuf_queue_to_vaddr	(	struct videobuf_queue *	q,
		struct videobuf_buffer *	buf
	)

Definition at line 129 of file videobuf-core.c.

ssize_t videobuf_read_one	(	struct videobuf_queue *	q,
		char __user *	data,
		size_t	count,
		loff_t *	ppos,
		int	nonblocking
	)

Definition at line 867 of file videobuf-core.c.

int videobuf_read_start

(

struct videobuf_queue *

q

)

Definition at line 1005 of file videobuf-core.c.

void videobuf_read_stop

(

struct videobuf_queue *

q

)

Definition at line 1017 of file videobuf-core.c.

ssize_t videobuf_read_stream	(	struct videobuf_queue *	q,
		char __user *	data,
		size_t	count,
		loff_t *	ppos,
		int	vbihack,
		int	nonblocking
	)

Definition at line 1039 of file videobuf-core.c.

int videobuf_reqbufs	(	struct videobuf_queue *	q,
		struct v4l2_requestbuffers *	req
	)

Definition at line 434 of file videobuf-core.c.

void videobuf_stop

(

struct videobuf_queue *

q

)

Definition at line 1025 of file videobuf-core.c.

int videobuf_streamoff

(

struct videobuf_queue *

q

)

Definition at line 766 of file videobuf-core.c.

int videobuf_streamon

(

struct videobuf_queue *

q

)

Definition at line 728 of file videobuf-core.c.

int videobuf_waiton	(	struct videobuf_queue *	q,
		struct videobuf_buffer *	vb,
		int	non_blocking,
		int	intr
	)

Definition at line 87 of file videobuf-core.c.