• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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  */
36 enum 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  */
47 struct 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  */
60 struct 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 (MEDIA_BUS_FMT_ definitions)
72  * @which: format type (from enum v4l2_subdev_format_whence)
73  */
74 struct v4l2_subdev_mbus_code_enum {
75 	__u32 pad;
76 	__u32 index;
77 	__u32 code;
78 	__u32 which;
79 	__u32 reserved[8];
80 };
81 
82 /**
83  * struct v4l2_subdev_frame_size_enum - Media bus format enumeration
84  * @pad: pad number, as reported by the media API
85  * @index: format index during enumeration
86  * @code: format code (MEDIA_BUS_FMT_ definitions)
87  * @which: format type (from enum v4l2_subdev_format_whence)
88  */
89 struct v4l2_subdev_frame_size_enum {
90 	__u32 index;
91 	__u32 pad;
92 	__u32 code;
93 	__u32 min_width;
94 	__u32 max_width;
95 	__u32 min_height;
96 	__u32 max_height;
97 	__u32 which;
98 	__u32 reserved[8];
99 };
100 
101 /**
102  * struct v4l2_subdev_frame_interval - Pad-level frame rate
103  * @pad: pad number, as reported by the media API
104  * @interval: frame interval in seconds
105  */
106 struct v4l2_subdev_frame_interval {
107 	__u32 pad;
108 	struct v4l2_fract interval;
109 	__u32 reserved[9];
110 };
111 
112 /**
113  * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
114  * @pad: pad number, as reported by the media API
115  * @index: frame interval index during enumeration
116  * @code: format code (MEDIA_BUS_FMT_ definitions)
117  * @width: frame width in pixels
118  * @height: frame height in pixels
119  * @interval: frame interval in seconds
120  * @which: format type (from enum v4l2_subdev_format_whence)
121  */
122 struct v4l2_subdev_frame_interval_enum {
123 	__u32 index;
124 	__u32 pad;
125 	__u32 code;
126 	__u32 width;
127 	__u32 height;
128 	struct v4l2_fract interval;
129 	__u32 which;
130 	__u32 reserved[8];
131 };
132 
133 /**
134  * struct v4l2_subdev_selection - selection info
135  *
136  * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY
137  * @pad: pad number, as reported by the media API
138  * @target: Selection target, used to choose one of possible rectangles,
139  *	    defined in v4l2-common.h; V4L2_SEL_TGT_* .
140  * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
141  * @r: coordinates of the selection window
142  * @reserved: for future use, set to zero for now
143  *
144  * Hardware may use multiple helper windows to process a video stream.
145  * The structure is used to exchange this selection areas between
146  * an application and a driver.
147  */
148 struct v4l2_subdev_selection {
149 	__u32 which;
150 	__u32 pad;
151 	__u32 target;
152 	__u32 flags;
153 	struct v4l2_rect r;
154 	__u32 reserved[8];
155 };
156 
157 /* Backwards compatibility define --- to be removed */
158 #define v4l2_subdev_edid v4l2_edid
159 
160 #define VIDIOC_SUBDEV_G_FMT			_IOWR('V',  4, struct v4l2_subdev_format)
161 #define VIDIOC_SUBDEV_S_FMT			_IOWR('V',  5, struct v4l2_subdev_format)
162 #define VIDIOC_SUBDEV_G_FRAME_INTERVAL		_IOWR('V', 21, struct v4l2_subdev_frame_interval)
163 #define VIDIOC_SUBDEV_S_FRAME_INTERVAL		_IOWR('V', 22, struct v4l2_subdev_frame_interval)
164 #define VIDIOC_SUBDEV_ENUM_MBUS_CODE		_IOWR('V',  2, struct v4l2_subdev_mbus_code_enum)
165 #define VIDIOC_SUBDEV_ENUM_FRAME_SIZE		_IOWR('V', 74, struct v4l2_subdev_frame_size_enum)
166 #define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL	_IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)
167 #define VIDIOC_SUBDEV_G_CROP			_IOWR('V', 59, struct v4l2_subdev_crop)
168 #define VIDIOC_SUBDEV_S_CROP			_IOWR('V', 60, struct v4l2_subdev_crop)
169 #define VIDIOC_SUBDEV_G_SELECTION		_IOWR('V', 61, struct v4l2_subdev_selection)
170 #define VIDIOC_SUBDEV_S_SELECTION		_IOWR('V', 62, struct v4l2_subdev_selection)
171 /* The following ioctls are identical to the ioctls in videodev2.h */
172 #define VIDIOC_SUBDEV_G_EDID			_IOWR('V', 40, struct v4l2_edid)
173 #define VIDIOC_SUBDEV_S_EDID			_IOWR('V', 41, struct v4l2_edid)
174 #define VIDIOC_SUBDEV_S_DV_TIMINGS		_IOWR('V', 87, struct v4l2_dv_timings)
175 #define VIDIOC_SUBDEV_G_DV_TIMINGS		_IOWR('V', 88, struct v4l2_dv_timings)
176 #define VIDIOC_SUBDEV_ENUM_DV_TIMINGS		_IOWR('V', 98, struct v4l2_enum_dv_timings)
177 #define VIDIOC_SUBDEV_QUERY_DV_TIMINGS		_IOR('V', 99, struct v4l2_dv_timings)
178 #define VIDIOC_SUBDEV_DV_TIMINGS_CAP		_IOWR('V', 100, struct v4l2_dv_timings_cap)
179 
180 #endif
181