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v4l2-mediabus.h
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1 /*
2  * Media Bus API header
3  *
4  * Copyright (C) 2009, Guennadi Liakhovetski <[email protected]>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 
11 #ifndef V4L2_MEDIABUS_H
12 #define V4L2_MEDIABUS_H
13 
14 #include <linux/v4l2-mediabus.h>
15 
16 /* Parallel flags */
17 /*
18  * Can the client run in master or in slave mode. By "Master mode" an operation
19  * mode is meant, when the client (e.g., a camera sensor) is producing
20  * horizontal and vertical synchronisation. In "Slave mode" the host is
21  * providing these signals to the slave.
22  */
23 #define V4L2_MBUS_MASTER (1 << 0)
24 #define V4L2_MBUS_SLAVE (1 << 1)
25 /*
26  * Signal polarity flags
27  * Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
28  * V4L2_MBUS_[HV]SYNC* flags should be also used for specifying
29  * configuration of hardware that uses [HV]REF signals
30  */
31 #define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2)
32 #define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3)
33 #define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4)
34 #define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5)
35 #define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6)
36 #define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7)
37 #define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8)
38 #define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9)
39 /* FIELD = 0/1 - Field1 (odd)/Field2 (even) */
40 #define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10)
41 /* FIELD = 1/0 - Field1 (odd)/Field2 (even) */
42 #define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11)
43 
44 /* Serial flags */
45 /* How many lanes the client can use */
46 #define V4L2_MBUS_CSI2_1_LANE (1 << 0)
47 #define V4L2_MBUS_CSI2_2_LANE (1 << 1)
48 #define V4L2_MBUS_CSI2_3_LANE (1 << 2)
49 #define V4L2_MBUS_CSI2_4_LANE (1 << 3)
50 /* On which channels it can send video data */
51 #define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4)
52 #define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5)
53 #define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6)
54 #define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7)
55 /* Does it support only continuous or also non-continuous clock mode */
56 #define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8)
57 #define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9)
58 
59 #define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \
60  V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE)
61 #define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \
62  V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3)
63 
75 };
76 
84  unsigned int flags;
85 };
86 
87 static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
88  const struct v4l2_mbus_framefmt *mbus_fmt)
89 {
90  pix_fmt->width = mbus_fmt->width;
91  pix_fmt->height = mbus_fmt->height;
92  pix_fmt->field = mbus_fmt->field;
93  pix_fmt->colorspace = mbus_fmt->colorspace;
94 }
95 
96 static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
97  const struct v4l2_pix_format *pix_fmt,
99 {
100  mbus_fmt->width = pix_fmt->width;
101  mbus_fmt->height = pix_fmt->height;
102  mbus_fmt->field = pix_fmt->field;
103  mbus_fmt->colorspace = pix_fmt->colorspace;
104  mbus_fmt->code = code;
105 }
106 
107 #endif