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1 /*
2  * include/linux/v4l2-common.h
3  *
4  * Common V4L2 and V4L2 subdev definitions.
5  *
6  * Users are advised to #include this file either through videodev2.h
7  * (V4L2) or through v4l2-subdev.h (V4L2 subdev) rather than to refer
8  * to this file directly.
9  *
10  * Copyright (C) 2012 Nokia Corporation
11  * Contact: Sakari Ailus <sakari.ailus@iki.fi>
12  *
13  *  This program is free software; you can redistribute it and/or modify
14  *  it under the terms of the GNU General Public License as published by
15  *  the Free Software Foundation; either version 2 of the License, or
16  *  (at your option) any later version.
17  *
18  *  This program is distributed in the hope that it will be useful,
19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  *  GNU General Public License for more details.
22  *
23  *  Alternatively you can redistribute this file under the terms of the
24  *  BSD license as stated below:
25  *
26  *  Redistribution and use in source and binary forms, with or without
27  *  modification, are permitted provided that the following conditions
28  *  are met:
29  *  1. Redistributions of source code must retain the above copyright
30  *     notice, this list of conditions and the following disclaimer.
31  *  2. Redistributions in binary form must reproduce the above copyright
32  *     notice, this list of conditions and the following disclaimer in
33  *     the documentation and/or other materials provided with the
34  *     distribution.
35  *  3. The names of its contributors may not be used to endorse or promote
36  *     products derived from this software without specific prior written
37  *     permission.
38  *
39  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
40  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
41  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
42  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
43  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
45  *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
46  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
47  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
48  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
49  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
50  *
51  */
52 
53 #ifndef __V4L2_COMMON__
54 #define __V4L2_COMMON__
55 
56 #include <linux/types.h>
57 
58 /*
59  *
60  * Selection interface definitions
61  *
62  */
63 
64 /* Current cropping area */
65 #define V4L2_SEL_TGT_CROP		0x0000
66 /* Default cropping area */
67 #define V4L2_SEL_TGT_CROP_DEFAULT	0x0001
68 /* Cropping bounds */
69 #define V4L2_SEL_TGT_CROP_BOUNDS	0x0002
70 /* Native frame size */
71 #define V4L2_SEL_TGT_NATIVE_SIZE	0x0003
72 /* Current composing area */
73 #define V4L2_SEL_TGT_COMPOSE		0x0100
74 /* Default composing area */
75 #define V4L2_SEL_TGT_COMPOSE_DEFAULT	0x0101
76 /* Composing bounds */
77 #define V4L2_SEL_TGT_COMPOSE_BOUNDS	0x0102
78 /* Current composing area plus all padding pixels */
79 #define V4L2_SEL_TGT_COMPOSE_PADDED	0x0103
80 
81 /* Backward compatibility target definitions --- to be removed. */
82 #define V4L2_SEL_TGT_CROP_ACTIVE	V4L2_SEL_TGT_CROP
83 #define V4L2_SEL_TGT_COMPOSE_ACTIVE	V4L2_SEL_TGT_COMPOSE
84 #define V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL	V4L2_SEL_TGT_CROP
85 #define V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL V4L2_SEL_TGT_COMPOSE
86 #define V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS	V4L2_SEL_TGT_CROP_BOUNDS
87 #define V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS V4L2_SEL_TGT_COMPOSE_BOUNDS
88 
89 /* Selection flags */
90 #define V4L2_SEL_FLAG_GE		(1 << 0)
91 #define V4L2_SEL_FLAG_LE		(1 << 1)
92 #define V4L2_SEL_FLAG_KEEP_CONFIG	(1 << 2)
93 
94 /* Backward compatibility flag definitions --- to be removed. */
95 #define V4L2_SUBDEV_SEL_FLAG_SIZE_GE	V4L2_SEL_FLAG_GE
96 #define V4L2_SUBDEV_SEL_FLAG_SIZE_LE	V4L2_SEL_FLAG_LE
97 #define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG V4L2_SEL_FLAG_KEEP_CONFIG
98 
99 struct v4l2_edid {
100 	__u32 pad;
101 	__u32 start_block;
102 	__u32 blocks;
103 	__u32 reserved[5];
104 	__u8  *edid;
105 };
106 
107 #endif /* __V4L2_COMMON__ */
108