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-rw-r--r--include/linux/v4l2-subdev.h180
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diff --git a/include/linux/v4l2-subdev.h b/include/linux/v4l2-subdev.h
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--- a/include/linux/v4l2-subdev.h
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1/*
2 * V4L2 subdev userspace API
3 *
4 * Copyright (C) 2010 Nokia Corporation
5 *
6 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
7 * Sakari Ailus <sakari.ailus@iki.fi>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23#ifndef __LINUX_V4L2_SUBDEV_H
24#define __LINUX_V4L2_SUBDEV_H
25
26#include <linux/ioctl.h>
27#include <linux/types.h>
28#include <linux/v4l2-common.h>
29#include <linux/v4l2-mediabus.h>
30
31/**
32 * enum v4l2_subdev_format_whence - Media bus format type
33 * @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only
34 * @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device
35 */
36enum v4l2_subdev_format_whence {
37 V4L2_SUBDEV_FORMAT_TRY = 0,
38 V4L2_SUBDEV_FORMAT_ACTIVE = 1,
39};
40
41/**
42 * struct v4l2_subdev_format - Pad-level media bus format
43 * @which: format type (from enum v4l2_subdev_format_whence)
44 * @pad: pad number, as reported by the media API
45 * @format: media bus format (format code and frame size)
46 */
47struct v4l2_subdev_format {
48 __u32 which;
49 __u32 pad;
50 struct v4l2_mbus_framefmt format;
51 __u32 reserved[8];
52};
53
54/**
55 * struct v4l2_subdev_crop - Pad-level crop settings
56 * @which: format type (from enum v4l2_subdev_format_whence)
57 * @pad: pad number, as reported by the media API
58 * @rect: pad crop rectangle boundaries
59 */
60struct v4l2_subdev_crop {
61 __u32 which;
62 __u32 pad;
63 struct v4l2_rect rect;
64 __u32 reserved[8];
65};
66
67/**
68 * struct v4l2_subdev_mbus_code_enum - Media bus format enumeration
69 * @pad: pad number, as reported by the media API
70 * @index: format index during enumeration
71 * @code: format code (from enum v4l2_mbus_pixelcode)
72 */
73struct v4l2_subdev_mbus_code_enum {
74 __u32 pad;
75 __u32 index;
76 __u32 code;
77 __u32 reserved[9];
78};
79
80/**
81 * struct v4l2_subdev_frame_size_enum - Media bus format enumeration
82 * @pad: pad number, as reported by the media API
83 * @index: format index during enumeration
84 * @code: format code (from enum v4l2_mbus_pixelcode)
85 */
86struct v4l2_subdev_frame_size_enum {
87 __u32 index;
88 __u32 pad;
89 __u32 code;
90 __u32 min_width;
91 __u32 max_width;
92 __u32 min_height;
93 __u32 max_height;
94 __u32 reserved[9];
95};
96
97/**
98 * struct v4l2_subdev_frame_interval - Pad-level frame rate
99 * @pad: pad number, as reported by the media API
100 * @interval: frame interval in seconds
101 */
102struct v4l2_subdev_frame_interval {
103 __u32 pad;
104 struct v4l2_fract interval;
105 __u32 reserved[9];
106};
107
108/**
109 * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
110 * @pad: pad number, as reported by the media API
111 * @index: frame interval index during enumeration
112 * @code: format code (from enum v4l2_mbus_pixelcode)
113 * @width: frame width in pixels
114 * @height: frame height in pixels
115 * @interval: frame interval in seconds
116 */
117struct v4l2_subdev_frame_interval_enum {
118 __u32 index;
119 __u32 pad;
120 __u32 code;
121 __u32 width;
122 __u32 height;
123 struct v4l2_fract interval;
124 __u32 reserved[9];
125};
126
127/**
128 * struct v4l2_subdev_selection - selection info
129 *
130 * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY
131 * @pad: pad number, as reported by the media API
132 * @target: Selection target, used to choose one of possible rectangles,
133 * defined in v4l2-common.h; V4L2_SEL_TGT_* .
134 * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
135 * @r: coordinates of the selection window
136 * @reserved: for future use, set to zero for now
137 *
138 * Hardware may use multiple helper windows to process a video stream.
139 * The structure is used to exchange this selection areas between
140 * an application and a driver.
141 */
142struct v4l2_subdev_selection {
143 __u32 which;
144 __u32 pad;
145 __u32 target;
146 __u32 flags;
147 struct v4l2_rect r;
148 __u32 reserved[8];
149};
150
151struct v4l2_subdev_edid {
152 __u32 pad;
153 __u32 start_block;
154 __u32 blocks;
155 __u32 reserved[5];
156 __u8 __user *edid;
157};
158
159#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
160#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
161#define VIDIOC_SUBDEV_G_FRAME_INTERVAL \
162 _IOWR('V', 21, struct v4l2_subdev_frame_interval)
163#define VIDIOC_SUBDEV_S_FRAME_INTERVAL \
164 _IOWR('V', 22, struct v4l2_subdev_frame_interval)
165#define VIDIOC_SUBDEV_ENUM_MBUS_CODE \
166 _IOWR('V', 2, struct v4l2_subdev_mbus_code_enum)
167#define VIDIOC_SUBDEV_ENUM_FRAME_SIZE \
168 _IOWR('V', 74, struct v4l2_subdev_frame_size_enum)
169#define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \
170 _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)
171#define VIDIOC_SUBDEV_G_CROP _IOWR('V', 59, struct v4l2_subdev_crop)
172#define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop)
173#define VIDIOC_SUBDEV_G_SELECTION \
174 _IOWR('V', 61, struct v4l2_subdev_selection)
175#define VIDIOC_SUBDEV_S_SELECTION \
176 _IOWR('V', 62, struct v4l2_subdev_selection)
177#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_subdev_edid)
178#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_subdev_edid)
179
180#endif
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