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/* $OpenBSD: video_if.h,v 1.19 2022/03/21 19:22:40 miod Exp $ */
/*
* Copyright (c) 2008 Robert Nagy <robert@openbsd.org>
* Copyright (c) 2008 Marcus Glocker <mglocker@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _SYS_DEV_VIDEO_IF_H
#define _SYS_DEV_VIDEO_IF_H
/*
* Generic interface to hardware driver
*/
#define VIDEOUNIT(x) (minor(x))
struct video_hw_if {
/* open hardware */
int (*open)(void *, int, int *, uint8_t *, void (*)(void *),
void *);
/* close hardware */
int (*close)(void *);
/* ioctl's */
int (*querycap)(void *, struct v4l2_capability *);
int (*enum_fmt)(void *, struct v4l2_fmtdesc *);
int (*enum_fsizes)(void *, struct v4l2_frmsizeenum *);
int (*enum_fivals)(void *, struct v4l2_frmivalenum *);
int (*s_fmt)(void *, struct v4l2_format *);
int (*g_fmt)(void *, struct v4l2_format *);
int (*s_parm)(void *, struct v4l2_streamparm *);
int (*g_parm)(void *, struct v4l2_streamparm *);
int (*enum_input)(void *, struct v4l2_input *);
int (*s_input)(void *, int);
int (*g_input)(void *, int *);
int (*reqbufs)(void *, struct v4l2_requestbuffers *);
int (*querybuf)(void *, struct v4l2_buffer *);
int (*qbuf)(void *, struct v4l2_buffer *);
int (*dqbuf)(void *, struct v4l2_buffer *);
int (*streamon)(void *, int);
int (*streamoff)(void *, int);
int (*try_fmt)(void *, struct v4l2_format *);
int (*queryctrl)(void *, struct v4l2_queryctrl *);
int (*g_ctrl)(void *, struct v4l2_control *);
int (*s_ctrl)(void *, struct v4l2_control *);
caddr_t (*mappage)(void *, off_t, int);
/* other functions */
int (*get_bufsize)(void *);
int (*start_read)(void *);
};
struct video_attach_args {
const void *hwif;
void *hdl;
};
struct device *video_attach_mi(const struct video_hw_if *, void *,
struct device *);
#endif /* _SYS_DEV_VIDEO_IF_H */
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