4 * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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.
11 #ifndef V4L2_MEDIABUS_H
12 #define V4L2_MEDIABUS_H
14 #include <linux/v4l2-mediabus.h>
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.
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)
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)
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)
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
70 * v4l2_mbus_config - media bus configuration
71 * @type: in: interface type
72 * @flags: in / out: configuration flags, depending on @type
74 struct v4l2_mbus_config {
75 enum v4l2_mbus_type type;
79 static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
80 const struct v4l2_mbus_framefmt *mbus_fmt)
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;
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)
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;