1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 * V4L2 subdev userspace API
5 * Copyright (C) 2010 Nokia Corporation
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #ifndef __LINUX_V4L2_SUBDEV_H
25 #define __LINUX_V4L2_SUBDEV_H
27 #include <linux/ioctl.h>
28 #include <linux/types.h>
29 #include <linux/v4l2-common.h>
30 #include <linux/v4l2-mediabus.h>
33 * enum v4l2_subdev_format_whence - Media bus format type
34 * @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only
35 * @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device
37 enum v4l2_subdev_format_whence {
38 V4L2_SUBDEV_FORMAT_TRY = 0,
39 V4L2_SUBDEV_FORMAT_ACTIVE = 1,
43 * struct v4l2_subdev_format - Pad-level media bus format
44 * @which: format type (from enum v4l2_subdev_format_whence)
45 * @pad: pad number, as reported by the media API
46 * @format: media bus format (format code and frame size)
47 * @reserved: drivers and applications must zero this array
49 struct v4l2_subdev_format {
52 struct v4l2_mbus_framefmt format;
57 * struct v4l2_subdev_crop - Pad-level crop settings
58 * @which: format type (from enum v4l2_subdev_format_whence)
59 * @pad: pad number, as reported by the media API
60 * @rect: pad crop rectangle boundaries
61 * @reserved: drivers and applications must zero this array
63 struct v4l2_subdev_crop {
66 struct v4l2_rect rect;
70 #define V4L2_SUBDEV_MBUS_CODE_CSC_COLORSPACE 0x00000001
71 #define V4L2_SUBDEV_MBUS_CODE_CSC_XFER_FUNC 0x00000002
72 #define V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC 0x00000004
73 #define V4L2_SUBDEV_MBUS_CODE_CSC_HSV_ENC V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC
74 #define V4L2_SUBDEV_MBUS_CODE_CSC_QUANTIZATION 0x00000008
77 * struct v4l2_subdev_mbus_code_enum - Media bus format enumeration
78 * @pad: pad number, as reported by the media API
79 * @index: format index during enumeration
80 * @code: format code (MEDIA_BUS_FMT_ definitions)
81 * @which: format type (from enum v4l2_subdev_format_whence)
82 * @flags: flags set by the driver, (V4L2_SUBDEV_MBUS_CODE_*)
83 * @reserved: drivers and applications must zero this array
85 struct v4l2_subdev_mbus_code_enum {
95 * struct v4l2_subdev_frame_size_enum - Media bus format enumeration
96 * @index: format index during enumeration
97 * @pad: pad number, as reported by the media API
98 * @code: format code (MEDIA_BUS_FMT_ definitions)
99 * @min_width: minimum frame width, in pixels
100 * @max_width: maximum frame width, in pixels
101 * @min_height: minimum frame height, in pixels
102 * @max_height: maximum frame height, in pixels
103 * @which: format type (from enum v4l2_subdev_format_whence)
104 * @reserved: drivers and applications must zero this array
106 struct v4l2_subdev_frame_size_enum {
119 * struct v4l2_subdev_frame_interval - Pad-level frame rate
120 * @pad: pad number, as reported by the media API
121 * @interval: frame interval in seconds
122 * @reserved: drivers and applications must zero this array
124 struct v4l2_subdev_frame_interval {
126 struct v4l2_fract interval;
131 * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
132 * @pad: pad number, as reported by the media API
133 * @index: frame interval index during enumeration
134 * @code: format code (MEDIA_BUS_FMT_ definitions)
135 * @width: frame width in pixels
136 * @height: frame height in pixels
137 * @interval: frame interval in seconds
138 * @which: format type (from enum v4l2_subdev_format_whence)
139 * @reserved: drivers and applications must zero this array
141 struct v4l2_subdev_frame_interval_enum {
147 struct v4l2_fract interval;
153 * struct v4l2_subdev_selection - selection info
155 * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY
156 * @pad: pad number, as reported by the media API
157 * @target: Selection target, used to choose one of possible rectangles,
158 * defined in v4l2-common.h; V4L2_SEL_TGT_* .
159 * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
160 * @r: coordinates of the selection window
161 * @reserved: for future use, set to zero for now
163 * Hardware may use multiple helper windows to process a video stream.
164 * The structure is used to exchange this selection areas between
165 * an application and a driver.
167 struct v4l2_subdev_selection {
177 * struct v4l2_subdev_capability - subdev capabilities
178 * @version: the driver versioning number
179 * @capabilities: the subdev capabilities, see V4L2_SUBDEV_CAP_*
180 * @reserved: for future use, set to zero for now
182 struct v4l2_subdev_capability {
188 /* The v4l2 sub-device video device node is registered in read-only mode. */
189 #define V4L2_SUBDEV_CAP_RO_SUBDEV 0x00000001
191 /* Backwards compatibility define --- to be removed */
192 #define v4l2_subdev_edid v4l2_edid
194 #define VIDIOC_SUBDEV_QUERYCAP _IOR('V', 0, struct v4l2_subdev_capability)
195 #define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
196 #define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
197 #define VIDIOC_SUBDEV_G_FRAME_INTERVAL _IOWR('V', 21, struct v4l2_subdev_frame_interval)
198 #define VIDIOC_SUBDEV_S_FRAME_INTERVAL _IOWR('V', 22, struct v4l2_subdev_frame_interval)
199 #define VIDIOC_SUBDEV_ENUM_MBUS_CODE _IOWR('V', 2, struct v4l2_subdev_mbus_code_enum)
200 #define VIDIOC_SUBDEV_ENUM_FRAME_SIZE _IOWR('V', 74, struct v4l2_subdev_frame_size_enum)
201 #define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)
202 #define VIDIOC_SUBDEV_G_CROP _IOWR('V', 59, struct v4l2_subdev_crop)
203 #define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop)
204 #define VIDIOC_SUBDEV_G_SELECTION _IOWR('V', 61, struct v4l2_subdev_selection)
205 #define VIDIOC_SUBDEV_S_SELECTION _IOWR('V', 62, struct v4l2_subdev_selection)
206 /* The following ioctls are identical to the ioctls in videodev2.h */
207 #define VIDIOC_SUBDEV_G_STD _IOR('V', 23, v4l2_std_id)
208 #define VIDIOC_SUBDEV_S_STD _IOW('V', 24, v4l2_std_id)
209 #define VIDIOC_SUBDEV_ENUMSTD _IOWR('V', 25, struct v4l2_standard)
210 #define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_edid)
211 #define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_edid)
212 #define VIDIOC_SUBDEV_QUERYSTD _IOR('V', 63, v4l2_std_id)
213 #define VIDIOC_SUBDEV_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
214 #define VIDIOC_SUBDEV_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
215 #define VIDIOC_SUBDEV_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings)
216 #define VIDIOC_SUBDEV_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings)
217 #define VIDIOC_SUBDEV_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap)