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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)
Sylwester Nawrocki3c6938f2011-09-19 12:58:54 -030025/*
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 */
Guennadi Liakhovetski91c79532011-07-01 14:31:17 -030031#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)
Sylwester Nawrocki3c6938f2011-09-19 12:58:54 -030039/* 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)
Guennadi Liakhovetski91c79532011-07-01 14:31:17 -030043
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
64/**
65 * v4l2_mbus_type - media bus type
66 * @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync
67 * @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can
68 * also be used for BT.1120
69 * @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface
70 */
71enum v4l2_mbus_type {
72 V4L2_MBUS_PARALLEL,
73 V4L2_MBUS_BT656,
74 V4L2_MBUS_CSI2,
75};
76
77/**
78 * v4l2_mbus_config - media bus configuration
79 * @type: in: interface type
80 * @flags: in / out: configuration flags, depending on @type
81 */
82struct v4l2_mbus_config {
83 enum v4l2_mbus_type type;
84 unsigned int flags;
85};
86
Hans Verkuil3a21cee2010-05-08 17:08:58 -030087static 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
96static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
97 const struct v4l2_pix_format *pix_fmt,
98 enum v4l2_mbus_pixelcode code)
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
Guennadi Liakhovetski9a742512009-12-11 11:41:28 -0300107#endif