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/*
* Copyright (c) 2020-2021 Dmitry V. Levin <ldv@strace.io>
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef STRACE_KERNEL_V4L2_BUFFER_H
# define STRACE_KERNEL_V4L2_BUFFER_H
# include <linux/videodev2.h>
# include "kernel_timeval.h"
# include "kernel_timespec.h"
# if defined __sparc__ && defined __arch64__
typedef struct {
long long tv_sec;
int tv_usec;
int pad;
} kernel_v4l2_timeval_t;
# else
typedef kernel_timeval64_t kernel_v4l2_timeval_t;
# endif
typedef struct {
uint32_t index;
uint32_t type;
uint32_t bytesused;
uint32_t flags;
uint32_t field;
kernel_v4l2_timeval_t timestamp;
struct v4l2_timecode timecode;
uint32_t sequence;
uint32_t memory;
union {
uint32_t offset;
unsigned long userptr;
struct v4l2_plane *planes;
int32_t fd;
} m;
uint32_t length;
uint32_t reserved2;
union {
int32_t request_fd;
uint32_t reserved;
};
} kernel_v4l2_buffer_t;
typedef struct {
uint32_t type;
union {
uint64_t data[8];
} u;
uint32_t pending;
uint32_t sequence;
kernel_timespec64_t timestamp;
uint32_t id;
uint32_t reserved[8];
} kernel_v4l2_event_t;
/* Removed by Linux kernel commit v3.6-rc1~28^2~240. */
# define V4L2_BUF_FLAG_INPUT 0x0200
/* Removed by Linux kernel commit v3.9-rc1~93^2~237. */
# define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
# define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
/* Removed by Linux kernel commit v4.20-rc7~16^2~2. */
# define V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS (V4L2_CID_CODEC_BASE + 250)
# define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION (V4L2_CID_CODEC_BASE + 251)
/*
* Constants based on struct v4l2_buffer are unreliable
* as the latter uses struct timeval.
*/
# undef VIDIOC_QUERYBUF
# define VIDIOC_QUERYBUF _IOWR('V', 9, kernel_v4l2_buffer_t)
# undef VIDIOC_QBUF
# define VIDIOC_QBUF _IOWR('V', 15, kernel_v4l2_buffer_t)
# undef VIDIOC_DQBUF
# define VIDIOC_DQBUF _IOWR('V', 17, kernel_v4l2_buffer_t)
# undef VIDIOC_PREPARE_BUF
# define VIDIOC_PREPARE_BUF _IOWR('V', 93, kernel_v4l2_buffer_t)
/*
* Constants based on struct v4l2_event are unreliable
* as the latter uses struct timespec.
*/
# undef VIDIOC_DQEVENT
# define VIDIOC_DQEVENT _IOR ('V', 89, kernel_v4l2_event_t)
#endif /* !STRACE_KERNEL_V4L2_BUFFER_H */
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