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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) | |
25 | /* Which signal polarities it supports */ | |
26 | /* Note: in BT.656 mode HSYNC and VSYNC are unused */ | |
27 | #define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2) | |
28 | #define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3) | |
29 | #define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4) | |
30 | #define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5) | |
31 | #define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6) | |
32 | #define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7) | |
33 | #define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8) | |
34 | #define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9) | |
35 | ||
36 | /* Serial flags */ | |
37 | /* How many lanes the client can use */ | |
38 | #define V4L2_MBUS_CSI2_1_LANE (1 << 0) | |
39 | #define V4L2_MBUS_CSI2_2_LANE (1 << 1) | |
40 | #define V4L2_MBUS_CSI2_3_LANE (1 << 2) | |
41 | #define V4L2_MBUS_CSI2_4_LANE (1 << 3) | |
42 | /* On which channels it can send video data */ | |
43 | #define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4) | |
44 | #define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5) | |
45 | #define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6) | |
46 | #define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7) | |
47 | /* Does it support only continuous or also non-continuous clock mode */ | |
48 | #define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8) | |
49 | #define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9) | |
50 | ||
51 | #define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \ | |
52 | V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE) | |
53 | #define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \ | |
54 | V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3) | |
55 | ||
56 | /** | |
57 | * v4l2_mbus_type - media bus type | |
58 | * @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync | |
59 | * @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can | |
60 | * also be used for BT.1120 | |
61 | * @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface | |
62 | */ | |
63 | enum v4l2_mbus_type { | |
64 | V4L2_MBUS_PARALLEL, | |
65 | V4L2_MBUS_BT656, | |
66 | V4L2_MBUS_CSI2, | |
67 | }; | |
68 | ||
69 | /** | |
70 | * v4l2_mbus_config - media bus configuration | |
71 | * @type: in: interface type | |
72 | * @flags: in / out: configuration flags, depending on @type | |
73 | */ | |
74 | struct v4l2_mbus_config { | |
75 | enum v4l2_mbus_type type; | |
76 | unsigned int flags; | |
77 | }; | |
78 | ||
3a21ceed HV |
79 | static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt, |
80 | const struct v4l2_mbus_framefmt *mbus_fmt) | |
81 | { | |
82 | pix_fmt->width = mbus_fmt->width; | |
83 | pix_fmt->height = mbus_fmt->height; | |
84 | pix_fmt->field = mbus_fmt->field; | |
85 | pix_fmt->colorspace = mbus_fmt->colorspace; | |
86 | } | |
87 | ||
88 | static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt, | |
89 | const struct v4l2_pix_format *pix_fmt, | |
90 | enum v4l2_mbus_pixelcode code) | |
91 | { | |
92 | mbus_fmt->width = pix_fmt->width; | |
93 | mbus_fmt->height = pix_fmt->height; | |
94 | mbus_fmt->field = pix_fmt->field; | |
95 | mbus_fmt->colorspace = pix_fmt->colorspace; | |
96 | mbus_fmt->code = code; | |
97 | } | |
98 | ||
9a74251d | 99 | #endif |