blob: 6114007c8c744d053dd328a883f378e19bfd9681 [file] [log] [blame]
Guennadi Liakhovetski9a742512009-12-11 11:41:28 -03001/*
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
Laurent Pinchart2ef2d5a2010-03-15 19:33:31 -030014#include <linux/v4l2-mediabus.h>
Guennadi Liakhovetski9a742512009-12-11 11:41:28 -030015
Guennadi Liakhovetski91c79532011-07-01 14:31:17 -030016/* 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 */
63enum 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 */
74struct v4l2_mbus_config {
75 enum v4l2_mbus_type type;
76 unsigned int flags;
77};
78
Hans Verkuil3a21cee2010-05-08 17:08:58 -030079static 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
88static 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
Guennadi Liakhovetski9a742512009-12-11 11:41:28 -030099#endif