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9a74251d GL |
1 | /* |
2 | * Media Bus API header | |
3 | * | |
4 | * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de> | |
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 | ||
2ef2d5a3 | 14 | #include <linux/v4l2-mediabus.h> |
9a74251d | 15 | |
91c79530 GL |
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) | |
3c6938f8 SN |
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 | */ | |
91c79530 GL |
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) | |
3c6938f8 SN |
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) | |
d1d70aa6 LP |
43 | /* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */ |
44 | #define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH (1 << 12) | |
45 | #define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW (1 << 13) | |
91c79530 GL |
46 | |
47 | /* Serial flags */ | |
48 | /* How many lanes the client can use */ | |
49 | #define V4L2_MBUS_CSI2_1_LANE (1 << 0) | |
50 | #define V4L2_MBUS_CSI2_2_LANE (1 << 1) | |
51 | #define V4L2_MBUS_CSI2_3_LANE (1 << 2) | |
52 | #define V4L2_MBUS_CSI2_4_LANE (1 << 3) | |
53 | /* On which channels it can send video data */ | |
54 | #define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4) | |
55 | #define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5) | |
56 | #define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6) | |
57 | #define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7) | |
58 | /* Does it support only continuous or also non-continuous clock mode */ | |
59 | #define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8) | |
60 | #define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9) | |
61 | ||
62 | #define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \ | |
63 | V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE) | |
64 | #define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \ | |
65 | V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3) | |
66 | ||
67 | /** | |
68 | * v4l2_mbus_type - media bus type | |
69 | * @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync | |
70 | * @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can | |
71 | * also be used for BT.1120 | |
72 | * @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface | |
73 | */ | |
74 | enum v4l2_mbus_type { | |
75 | V4L2_MBUS_PARALLEL, | |
76 | V4L2_MBUS_BT656, | |
77 | V4L2_MBUS_CSI2, | |
78 | }; | |
79 | ||
80 | /** | |
81 | * v4l2_mbus_config - media bus configuration | |
82 | * @type: in: interface type | |
83 | * @flags: in / out: configuration flags, depending on @type | |
84 | */ | |
85 | struct v4l2_mbus_config { | |
86 | enum v4l2_mbus_type type; | |
87 | unsigned int flags; | |
88 | }; | |
89 | ||
3a21ceed HV |
90 | static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt, |
91 | const struct v4l2_mbus_framefmt *mbus_fmt) | |
92 | { | |
93 | pix_fmt->width = mbus_fmt->width; | |
94 | pix_fmt->height = mbus_fmt->height; | |
95 | pix_fmt->field = mbus_fmt->field; | |
96 | pix_fmt->colorspace = mbus_fmt->colorspace; | |
97 | } | |
98 | ||
99 | static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt, | |
100 | const struct v4l2_pix_format *pix_fmt, | |
101 | enum v4l2_mbus_pixelcode code) | |
102 | { | |
103 | mbus_fmt->width = pix_fmt->width; | |
104 | mbus_fmt->height = pix_fmt->height; | |
105 | mbus_fmt->field = pix_fmt->field; | |
106 | mbus_fmt->colorspace = pix_fmt->colorspace; | |
107 | mbus_fmt->code = code; | |
108 | } | |
109 | ||
9a74251d | 110 | #endif |