af3bac1a7c
Move things related with vb2 file I/O and vb2_thread without doing any functional changes. After that, videobuf2-internal.h is removed because it is not necessary any more. Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
113 lines
4 KiB
C
113 lines
4 KiB
C
/*
|
|
* videobuf2-v4l2.h - V4L2 driver helper framework
|
|
*
|
|
* Copyright (C) 2010 Samsung Electronics
|
|
*
|
|
* Author: Pawel Osciak <pawel@osciak.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation.
|
|
*/
|
|
#ifndef _MEDIA_VIDEOBUF2_V4L2_H
|
|
#define _MEDIA_VIDEOBUF2_V4L2_H
|
|
|
|
#include <linux/videodev2.h>
|
|
#include <media/videobuf2-core.h>
|
|
|
|
#if VB2_MAX_FRAME != VIDEO_MAX_FRAME
|
|
#error VB2_MAX_FRAME != VIDEO_MAX_FRAME
|
|
#endif
|
|
|
|
#if VB2_MAX_PLANES != VIDEO_MAX_PLANES
|
|
#error VB2_MAX_PLANES != VIDEO_MAX_PLANES
|
|
#endif
|
|
|
|
/**
|
|
* struct vb2_v4l2_buffer - video buffer information for v4l2
|
|
* @vb2_buf: video buffer 2
|
|
* @flags: buffer informational flags
|
|
* @field: enum v4l2_field; field order of the image in the buffer
|
|
* @timecode: frame timecode
|
|
* @sequence: sequence count of this frame
|
|
* Should contain enough information to be able to cover all the fields
|
|
* of struct v4l2_buffer at videodev2.h
|
|
*/
|
|
struct vb2_v4l2_buffer {
|
|
struct vb2_buffer vb2_buf;
|
|
|
|
__u32 flags;
|
|
__u32 field;
|
|
struct v4l2_timecode timecode;
|
|
__u32 sequence;
|
|
};
|
|
|
|
/*
|
|
* to_vb2_v4l2_buffer() - cast struct vb2_buffer * to struct vb2_v4l2_buffer *
|
|
*/
|
|
#define to_vb2_v4l2_buffer(vb) \
|
|
container_of(vb, struct vb2_v4l2_buffer, vb2_buf)
|
|
|
|
int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b);
|
|
int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req);
|
|
|
|
int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create);
|
|
int vb2_prepare_buf(struct vb2_queue *q, struct v4l2_buffer *b);
|
|
|
|
int vb2_qbuf(struct vb2_queue *q, struct v4l2_buffer *b);
|
|
int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb);
|
|
int vb2_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b, bool nonblocking);
|
|
|
|
int vb2_streamon(struct vb2_queue *q, enum v4l2_buf_type type);
|
|
int vb2_streamoff(struct vb2_queue *q, enum v4l2_buf_type type);
|
|
|
|
int __must_check vb2_queue_init(struct vb2_queue *q);
|
|
void vb2_queue_release(struct vb2_queue *q);
|
|
unsigned int vb2_poll(struct vb2_queue *q, struct file *file,
|
|
poll_table *wait);
|
|
|
|
/*
|
|
* The following functions are not part of the vb2 core API, but are simple
|
|
* helper functions that you can use in your struct v4l2_file_operations,
|
|
* struct v4l2_ioctl_ops and struct vb2_ops. They will serialize if vb2_queue->lock
|
|
* or video_device->lock is set, and they will set and test vb2_queue->owner
|
|
* to check if the calling filehandle is permitted to do the queuing operation.
|
|
*/
|
|
|
|
/* struct v4l2_ioctl_ops helpers */
|
|
|
|
int vb2_ioctl_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *p);
|
|
int vb2_ioctl_create_bufs(struct file *file, void *priv,
|
|
struct v4l2_create_buffers *p);
|
|
int vb2_ioctl_prepare_buf(struct file *file, void *priv,
|
|
struct v4l2_buffer *p);
|
|
int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p);
|
|
int vb2_ioctl_qbuf(struct file *file, void *priv, struct v4l2_buffer *p);
|
|
int vb2_ioctl_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p);
|
|
int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i);
|
|
int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i);
|
|
int vb2_ioctl_expbuf(struct file *file, void *priv,
|
|
struct v4l2_exportbuffer *p);
|
|
|
|
/* struct v4l2_file_operations helpers */
|
|
|
|
int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma);
|
|
int vb2_fop_release(struct file *file);
|
|
int _vb2_fop_release(struct file *file, struct mutex *lock);
|
|
ssize_t vb2_fop_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t *ppos);
|
|
ssize_t vb2_fop_read(struct file *file, char __user *buf,
|
|
size_t count, loff_t *ppos);
|
|
unsigned int vb2_fop_poll(struct file *file, poll_table *wait);
|
|
#ifndef CONFIG_MMU
|
|
unsigned long vb2_fop_get_unmapped_area(struct file *file, unsigned long addr,
|
|
unsigned long len, unsigned long pgoff, unsigned long flags);
|
|
#endif
|
|
|
|
/* struct vb2_ops helpers, only use if vq->lock is non-NULL. */
|
|
|
|
void vb2_ops_wait_prepare(struct vb2_queue *vq);
|
|
void vb2_ops_wait_finish(struct vb2_queue *vq);
|
|
|
|
#endif /* _MEDIA_VIDEOBUF2_V4L2_H */
|