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/*
*
* V 4 L 2 D R I V E R H E L P E R A P I
*
* Moved from videodev2.h
*
* Some commonly needed functions for drivers (v4l2-common.o module)
*/
#ifndef _V4L2_DEV_H
#define _V4L2_DEV_H
#define OBSOLETE_OWNER 1 /* to be removed soon */
#define OBSOLETE_DEVDATA 1 /* to be removed soon */
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/compiler.h> /* need __user */
#ifdef CONFIG_VIDEO_V4L1_COMPAT
#include <linux/videodev.h>
#else
#include <linux/videodev2.h>
#endif
#define VIDEO_MAJOR 81
/* Minor device allocation */
#define MINOR_VFL_TYPE_GRABBER_MIN 0
#define MINOR_VFL_TYPE_GRABBER_MAX 63
#define MINOR_VFL_TYPE_RADIO_MIN 64
#define MINOR_VFL_TYPE_RADIO_MAX 127
#define MINOR_VFL_TYPE_VTX_MIN 192
#define MINOR_VFL_TYPE_VTX_MAX 223
#define MINOR_VFL_TYPE_VBI_MIN 224
#define MINOR_VFL_TYPE_VBI_MAX 255
#define VFL_TYPE_GRABBER 0
#define VFL_TYPE_VBI 1
#define VFL_TYPE_RADIO 2
#define VFL_TYPE_VTX 3
/* Video standard functions */
extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
extern char *v4l2_norm_to_name(v4l2_std_id id);
extern int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, char *name);
/* prority handling */
struct v4l2_prio_state {
atomic_t prios[4];
};
int v4l2_prio_init(struct v4l2_prio_state *global);
int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
enum v4l2_priority new);
int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
/* names for fancy debug output */
extern char *v4l2_field_names[];
extern char *v4l2_type_names[];
/* Compatibility layer interface -- v4l1-compat module */
typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
unsigned int cmd, void *arg);
#ifdef CONFIG_VIDEO_V4L1_COMPAT
int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
int cmd, void *arg, v4l2_kioctl driver_ioctl);
#else
#define v4l_compat_translate_ioctl(inode,file,cmd,arg,ioctl) -EINVAL
#endif
/* 32 Bits compatibility layer for 64 bits processors */
extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
unsigned long arg);
/*
* Newer version of video_device, handled by videodev2.c
* This version moves redundant code from video device code to
* the common handler
*/
struct video_device
{
/* device ops */
const struct file_operations *fops;
/* sysfs */
struct device class_dev; /* v4l device */
struct device *dev; /* device parent */
/* device info */
char name[32];
int type; /* v4l1 */
int type2; /* v4l2 */
int hardware;
int minor;
int debug; /* Activates debug level*/
/* Video standard vars */
v4l2_std_id tvnorms; /* Supported tv norms */
v4l2_std_id current_norm; /* Current tvnorm */
/* callbacks */
void (*release)(struct video_device *vfd);
/* ioctl callbacks */
/* VIDIOC_QUERYCAP handler */
int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap);
/* Priority handling */
int (*vidioc_g_priority) (struct file *file, void *fh,
enum v4l2_priority *p);
int (*vidioc_s_priority) (struct file *file, void *fh,
enum v4l2_priority p);
/* VIDIOC_ENUM_FMT handlers */
int (*vidioc_enum_fmt_cap) (struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_overlay) (struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vbi) (struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vbi_capture) (struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_video_output)(struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_output_overlay) (struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vbi_output) (struct file *file, void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh,
struct v4l2_fmtdesc *f);
/* VIDIOC_G_FMT handlers */
int (*vidioc_g_fmt_cap) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_overlay) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vbi) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vbi_output) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vbi_capture)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_video_output)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_output_overlay) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_type_private)(struct file *file, void *fh,
struct v4l2_format *f);
/* VIDIOC_S_FMT handlers */
int (*vidioc_s_fmt_cap) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_overlay) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vbi) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vbi_output) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vbi_capture)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_video_output)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_output_overlay) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_type_private)(struct file *file, void *fh,
struct v4l2_format *f);
/* VIDIOC_TRY_FMT handlers */
int (*vidioc_try_fmt_cap) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_overlay) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vbi) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vbi_output) (struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vbi_capture)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_video_output)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_output_overlay)(struct file *file, void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_type_private)(struct file *file, void *fh,
struct v4l2_format *f);
/* Buffer handlers */
int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b);
int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b);
int (*vidioc_qbuf) (struct file *file, void
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