1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

use crate::v4l_sys::*;

#[cfg(not(target_env = "musl"))]
#[allow(non_camel_case_types)]
pub type _IOC_TYPE = std::os::raw::c_ulong;
#[cfg(target_env = "musl")]
#[allow(non_camel_case_types)]
pub type _IOC_TYPE = std::os::raw::c_int;

// linux ioctl.h
const _IOC_NRBITS: u8 = 8;
const _IOC_TYPEBITS: u8 = 8;

const _IOC_SIZEBITS: u8 = 14;

const _IOC_NRSHIFT: u8 = 0;
const _IOC_TYPESHIFT: u8 = _IOC_NRSHIFT + _IOC_NRBITS;
const _IOC_SIZESHIFT: u8 = _IOC_TYPESHIFT + _IOC_TYPEBITS;
const _IOC_DIRSHIFT: u8 = _IOC_SIZESHIFT + _IOC_SIZEBITS;

const _IOC_NONE: u8 = 0;

#[cfg(any(target_os = "linux", target_os = "android"))]
const _IOC_WRITE: u8 = 1;
#[cfg(target_os = "freebsd")]
const _IOC_WRITE: u8 = 2;

#[cfg(any(target_os = "linux", target_os = "android"))]
const _IOC_READ: u8 = 2;
#[cfg(target_os = "freebsd")]
const _IOC_READ: u8 = 1;

macro_rules! _IOC_TYPECHECK {
    ($type:ty) => {
        std::mem::size_of::<$type>()
    };
}

macro_rules! _IOC {
    ($dir:expr, $type:expr, $nr:expr, $size:expr) => {
        (($dir as _IOC_TYPE) << $crate::v4l2::vidioc::_IOC_DIRSHIFT)
            | (($type as _IOC_TYPE) << $crate::v4l2::vidioc::_IOC_TYPESHIFT)
            | (($nr as _IOC_TYPE) << $crate::v4l2::vidioc::_IOC_NRSHIFT)
            | (($size as _IOC_TYPE) << $crate::v4l2::vidioc::_IOC_SIZESHIFT)
    };
}

macro_rules! _IO {
    ($type:expr, $nr:expr) => {
        _IOC!($crate::v4l2::vidioc::_IOC_NONE, $type, $nr, 0)
    };
}

macro_rules! _IOR {
    ($type:expr, $nr:expr, $size:ty) => {
        _IOC!(
            $crate::v4l2::vidioc::_IOC_READ,
            $type,
            $nr,
            _IOC_TYPECHECK!($size)
        )
    };
}

macro_rules! _IOW {
    ($type:expr, $nr:expr, $size:ty) => {
        _IOC!(
            $crate::v4l2::vidioc::_IOC_WRITE,
            $type,
            $nr,
            _IOC_TYPECHECK!($size)
        )
    };
}

macro_rules! _IOWR {
    ($type:expr, $nr:expr, $size:ty) => {
        _IOC!(
            $crate::v4l2::vidioc::_IOC_READ | $crate::v4l2::vidioc::_IOC_WRITE,
            $type,
            $nr,
            _IOC_TYPECHECK!($size)
        )
    };
}

pub const VIDIOC_QUERYCAP: _IOC_TYPE = _IOR!(b'V', 0, v4l2_capability);
pub const VIDIOC_RESERVED: _IOC_TYPE = _IO!(b'V', 1);
pub const VIDIOC_ENUM_FMT: _IOC_TYPE = _IOWR!(b'V', 2, v4l2_fmtdesc);
pub const VIDIOC_G_FMT: _IOC_TYPE = _IOWR!(b'V', 4, v4l2_format);
pub const VIDIOC_S_FMT: _IOC_TYPE = _IOWR!(b'V', 5, v4l2_format);
pub const VIDIOC_REQBUFS: _IOC_TYPE = _IOWR!(b'V', 8, v4l2_requestbuffers);
pub const VIDIOC_QUERYBUF: _IOC_TYPE = _IOWR!(b'V', 9, v4l2_buffer);
pub const VIDIOC_G_FBUF: _IOC_TYPE = _IOR!(b'V', 10, v4l2_framebuffer);
pub const VIDIOC_S_FBUF: _IOC_TYPE = _IOW!(b'V', 11, v4l2_framebuffer);
pub const VIDIOC_OVERLAY: _IOC_TYPE = _IOW!(b'V', 14, std::os::raw::c_int);
pub const VIDIOC_QBUF: _IOC_TYPE = _IOWR!(b'V', 15, v4l2_buffer);
pub const VIDIOC_EXPBUF: _IOC_TYPE = _IOWR!(b'V', 16, v4l2_exportbuffer);
pub const VIDIOC_DQBUF: _IOC_TYPE = _IOWR!(b'V', 17, v4l2_buffer);
pub const VIDIOC_STREAMON: _IOC_TYPE = _IOW!(b'V', 18, std::os::raw::c_int);
pub const VIDIOC_STREAMOFF: _IOC_TYPE = _IOW!(b'V', 19, std::os::raw::c_int);
pub const VIDIOC_G_PARM: _IOC_TYPE = _IOWR!(b'V', 21, v4l2_streamparm);
pub const VIDIOC_S_PARM: _IOC_TYPE = _IOWR!(b'V', 22, v4l2_streamparm);
pub const VIDIOC_G_STD: _IOC_TYPE = _IOR!(b'V', 23, v4l2_std_id);
pub const VIDIOC_S_STD: _IOC_TYPE = _IOW!(b'V', 24, v4l2_std_id);
pub const VIDIOC_ENUMSTD: _IOC_TYPE = _IOWR!(b'V', 25, v4l2_standard);
pub const VIDIOC_ENUMINPUT: _IOC_TYPE = _IOWR!(b'V', 26, v4l2_input);
pub const VIDIOC_G_CTRL: _IOC_TYPE = _IOWR!(b'V', 27, v4l2_control);
pub const VIDIOC_S_CTRL: _IOC_TYPE = _IOWR!(b'V', 28, v4l2_control);
pub const VIDIOC_G_TUNER: _IOC_TYPE = _IOWR!(b'V', 29, v4l2_tuner);
pub const VIDIOC_S_TUNER: _IOC_TYPE = _IOW!(b'V', 30, v4l2_tuner);
pub const VIDIOC_G_AUDIO: _IOC_TYPE = _IOR!(b'V', 33, v4l2_audio);
pub const VIDIOC_S_AUDIO: _IOC_TYPE = _IOW!(b'V', 34, v4l2_audio);
pub const VIDIOC_QUERYCTRL: _IOC_TYPE = _IOWR!(b'V', 36, v4l2_queryctrl);
pub const VIDIOC_QUERYMENU: _IOC_TYPE = _IOWR!(b'V', 37, v4l2_querymenu);
pub const VIDIOC_G_INPUT: _IOC_TYPE = _IOR!(b'V', 38, std::os::raw::c_int);
pub const VIDIOC_S_INPUT: _IOC_TYPE = _IOWR!(b'V', 39, std::os::raw::c_int);
pub const VIDIOC_G_EDID: _IOC_TYPE = _IOWR!(b'V', 40, v4l2_edid);
pub const VIDIOC_S_EDID: _IOC_TYPE = _IOWR!(b'V', 41, v4l2_edid);
pub const VIDIOC_G_OUTPUT: _IOC_TYPE = _IOR!(b'V', 46, std::os::raw::c_int);
pub const VIDIOC_S_OUTPUT: _IOC_TYPE = _IOWR!(b'V', 47, std::os::raw::c_int);
pub const VIDIOC_ENUMOUTPUT: _IOC_TYPE = _IOWR!(b'V', 48, v4l2_output);
pub const VIDIOC_G_AUDOUT: _IOC_TYPE = _IOR!(b'V', 49, v4l2_audioout);
pub const VIDIOC_S_AUDOUT: _IOC_TYPE = _IOW!(b'V', 50, v4l2_audioout);
pub const VIDIOC_G_MODULATOR: _IOC_TYPE = _IOWR!(b'V', 54, v4l2_modulator);
pub const VIDIOC_S_MODULATOR: _IOC_TYPE = _IOW!(b'V', 55, v4l2_modulator);
pub const VIDIOC_G_FREQUENCY: _IOC_TYPE = _IOWR!(b'V', 56, v4l2_frequency);
pub const VIDIOC_S_FREQUENCY: _IOC_TYPE = _IOW!(b'V', 57, v4l2_frequency);
pub const VIDIOC_CROPCAP: _IOC_TYPE = _IOWR!(b'V', 58, v4l2_cropcap);
pub const VIDIOC_G_CROP: _IOC_TYPE = _IOWR!(b'V', 59, v4l2_crop);
pub const VIDIOC_S_CROP: _IOC_TYPE = _IOW!(b'V', 60, v4l2_crop);
pub const VIDIOC_G_JPEGCOMP: _IOC_TYPE = _IOR!(b'V', 61, v4l2_jpegcompression);
pub const VIDIOC_S_JPEGCOMP: _IOC_TYPE = _IOW!(b'V', 62, v4l2_jpegcompression);
pub const VIDIOC_QUERYSTD: _IOC_TYPE = _IOR!(b'V', 63, v4l2_std_id);
pub const VIDIOC_TRY_FMT: _IOC_TYPE = _IOWR!(b'V', 64, v4l2_format);
pub const VIDIOC_ENUMAUDIO: _IOC_TYPE = _IOWR!(b'V', 65, v4l2_audio);
pub const VIDIOC_ENUMAUDOUT: _IOC_TYPE = _IOWR!(b'V', 66, v4l2_audioout);
pub const VIDIOC_G_PRIORITY: _IOC_TYPE = _IOR!(b'V', 67, std::os::raw::c_int);
pub const VIDIOC_S_PRIORITY: _IOC_TYPE = _IOW!(b'V', 68, std::os::raw::c_int);
pub const VIDIOC_G_SLICED_VBI_CAP: _IOC_TYPE = _IOWR!(b'V', 69, v4l2_sliced_vbi_cap);
pub const VIDIOC_LOG_STATUS: _IOC_TYPE = _IO!(b'V', 70);
pub const VIDIOC_G_EXT_CTRLS: _IOC_TYPE = _IOWR!(b'V', 71, v4l2_ext_controls);
pub const VIDIOC_S_EXT_CTRLS: _IOC_TYPE = _IOWR!(b'V', 72, v4l2_ext_controls);
pub const VIDIOC_TRY_EXT_CTRLS: _IOC_TYPE = _IOWR!(b'V', 73, v4l2_ext_controls);
pub const VIDIOC_ENUM_FRAMESIZES: _IOC_TYPE = _IOWR!(b'V', 74, v4l2_frmsizeenum);
pub const VIDIOC_ENUM_FRAMEINTERVALS: _IOC_TYPE = _IOWR!(b'V', 75, v4l2_frmivalenum);
pub const VIDIOC_G_ENC_INDEX: _IOC_TYPE = _IOR!(b'V', 76, v4l2_enc_idx);
pub const VIDIOC_ENCODER_CMD: _IOC_TYPE = _IOWR!(b'V', 77, v4l2_encoder_cmd);
pub const VIDIOC_TRY_ENCODER_CMD: _IOC_TYPE = _IOWR!(b'V', 78, v4l2_encoder_cmd);
pub const VIDIOC_QUERY_EXT_CTRL: _IOC_TYPE = _IOWR!(b'V', 103, v4l2_query_ext_ctrl);