1/*	$OpenBSD: video_if.h,v 1.19 2022/03/21 19:22:40 miod Exp $	*/
2/*
3 * Copyright (c) 2008 Robert Nagy <robert@openbsd.org>
4 * Copyright (c) 2008 Marcus Glocker <mglocker@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _SYS_DEV_VIDEO_IF_H
20#define _SYS_DEV_VIDEO_IF_H
21
22/*
23 * Generic interface to hardware driver
24 */
25
26#define VIDEOUNIT(x)	(minor(x))
27
28struct video_hw_if {
29	/* open hardware */
30	int	(*open)(void *, int, int *, uint8_t *, void (*)(void *),
31		    void *);
32
33	/* close hardware */
34	int	(*close)(void *);
35
36	/* ioctl's */
37	int	(*querycap)(void *, struct v4l2_capability *);
38	int	(*enum_fmt)(void *, struct v4l2_fmtdesc *);
39	int	(*enum_fsizes)(void *, struct v4l2_frmsizeenum *);
40	int	(*enum_fivals)(void *, struct v4l2_frmivalenum *);
41	int	(*s_fmt)(void *, struct v4l2_format *);
42	int	(*g_fmt)(void *, struct v4l2_format *);
43	int	(*s_parm)(void *, struct v4l2_streamparm *);
44	int	(*g_parm)(void *, struct v4l2_streamparm *);
45	int	(*enum_input)(void *, struct v4l2_input *);
46	int	(*s_input)(void *, int);
47	int	(*g_input)(void *, int *);
48	int	(*reqbufs)(void *, struct v4l2_requestbuffers *);
49	int	(*querybuf)(void *, struct v4l2_buffer *);
50	int	(*qbuf)(void *, struct v4l2_buffer *);
51	int	(*dqbuf)(void *, struct v4l2_buffer *);
52	int	(*streamon)(void *, int);
53	int	(*streamoff)(void *, int);
54	int	(*try_fmt)(void *, struct v4l2_format *);
55	int	(*queryctrl)(void *, struct v4l2_queryctrl *);
56	int	(*g_ctrl)(void *, struct v4l2_control *);
57	int	(*s_ctrl)(void *, struct v4l2_control *);
58	caddr_t	(*mappage)(void *, off_t, int);
59
60	/* other functions */
61	int	(*get_bufsize)(void *);
62	int	(*start_read)(void *);
63};
64
65struct video_attach_args {
66        const void *hwif;
67        void	*hdl;
68};
69
70struct device  *video_attach_mi(const struct video_hw_if *, void *,
71	    struct device *);
72
73#endif /* _SYS_DEV_VIDEO_IF_H */
74