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>
15 #include <linux/bitops.h>
19 * Can the client run in master or in slave mode. By "Master mode" an operation
20 * mode is meant, when the client (e.g., a camera sensor) is producing
21 * horizontal and vertical synchronisation. In "Slave mode" the host is
22 * providing these signals to the slave.
24 #define V4L2_MBUS_MASTER BIT(0)
25 #define V4L2_MBUS_SLAVE BIT(1)
27 * Signal polarity flags
28 * Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
29 * V4L2_MBUS_[HV]SYNC* flags should be also used for specifying
30 * configuration of hardware that uses [HV]REF signals
32 #define V4L2_MBUS_HSYNC_ACTIVE_HIGH BIT(2)
33 #define V4L2_MBUS_HSYNC_ACTIVE_LOW BIT(3)
34 #define V4L2_MBUS_VSYNC_ACTIVE_HIGH BIT(4)
35 #define V4L2_MBUS_VSYNC_ACTIVE_LOW BIT(5)
36 #define V4L2_MBUS_PCLK_SAMPLE_RISING BIT(6)
37 #define V4L2_MBUS_PCLK_SAMPLE_FALLING BIT(7)
38 #define V4L2_MBUS_DATA_ACTIVE_HIGH BIT(8)
39 #define V4L2_MBUS_DATA_ACTIVE_LOW BIT(9)
40 /* FIELD = 0/1 - Field1 (odd)/Field2 (even) */
41 #define V4L2_MBUS_FIELD_EVEN_HIGH BIT(10)
42 /* FIELD = 1/0 - Field1 (odd)/Field2 (even) */
43 #define V4L2_MBUS_FIELD_EVEN_LOW BIT(11)
44 /* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */
45 #define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH BIT(12)
46 #define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW BIT(13)
47 #define V4L2_MBUS_DATA_ENABLE_HIGH BIT(14)
48 #define V4L2_MBUS_DATA_ENABLE_LOW BIT(15)
51 /* How many lanes the client can use */
52 #define V4L2_MBUS_CSI2_1_LANE BIT(0)
53 #define V4L2_MBUS_CSI2_2_LANE BIT(1)
54 #define V4L2_MBUS_CSI2_3_LANE BIT(2)
55 #define V4L2_MBUS_CSI2_4_LANE BIT(3)
56 /* On which channels it can send video data */
57 #define V4L2_MBUS_CSI2_CHANNEL_0 BIT(4)
58 #define V4L2_MBUS_CSI2_CHANNEL_1 BIT(5)
59 #define V4L2_MBUS_CSI2_CHANNEL_2 BIT(6)
60 #define V4L2_MBUS_CSI2_CHANNEL_3 BIT(7)
61 /* Does it support only continuous or also non-continuous clock mode */
62 #define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK BIT(8)
63 #define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK BIT(9)
65 #define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | \
66 V4L2_MBUS_CSI2_2_LANE | \
67 V4L2_MBUS_CSI2_3_LANE | \
68 V4L2_MBUS_CSI2_4_LANE)
69 #define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | \
70 V4L2_MBUS_CSI2_CHANNEL_1 | \
71 V4L2_MBUS_CSI2_CHANNEL_2 | \
72 V4L2_MBUS_CSI2_CHANNEL_3)
75 * enum v4l2_mbus_type - media bus type
76 * @V4L2_MBUS_UNKNOWN: unknown bus type, no V4L2 mediabus configuration
77 * @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync
78 * @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can
79 * also be used for BT.1120
80 * @V4L2_MBUS_CSI1: MIPI CSI-1 serial interface
81 * @V4L2_MBUS_CCP2: CCP2 (Compact Camera Port 2)
82 * @V4L2_MBUS_CSI2_DPHY: MIPI CSI-2 serial interface, with D-PHY
83 * @V4L2_MBUS_CSI2_CPHY: MIPI CSI-2 serial interface, with C-PHY
96 * struct v4l2_mbus_config - media bus configuration
97 * @type: in: interface type
98 * @flags: in / out: configuration flags, depending on @type
100 struct v4l2_mbus_config {
101 enum v4l2_mbus_type type;
106 * v4l2_fill_pix_format - Ancillary routine that fills a &struct
107 * v4l2_pix_format fields from a &struct v4l2_mbus_framefmt.
109 * @pix_fmt: pointer to &struct v4l2_pix_format to be filled
110 * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be used as model
113 v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
114 const struct v4l2_mbus_framefmt *mbus_fmt)
116 pix_fmt->width = mbus_fmt->width;
117 pix_fmt->height = mbus_fmt->height;
118 pix_fmt->field = mbus_fmt->field;
119 pix_fmt->colorspace = mbus_fmt->colorspace;
120 pix_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
121 pix_fmt->quantization = mbus_fmt->quantization;
122 pix_fmt->xfer_func = mbus_fmt->xfer_func;
126 * v4l2_fill_pix_format - Ancillary routine that fills a &struct
127 * v4l2_mbus_framefmt from a &struct v4l2_pix_format and a
130 * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be filled
131 * @pix_fmt: pointer to &struct v4l2_pix_format to be used as model
132 * @code: data format code (from &enum v4l2_mbus_pixelcode)
134 static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
135 const struct v4l2_pix_format *pix_fmt,
138 mbus_fmt->width = pix_fmt->width;
139 mbus_fmt->height = pix_fmt->height;
140 mbus_fmt->field = pix_fmt->field;
141 mbus_fmt->colorspace = pix_fmt->colorspace;
142 mbus_fmt->ycbcr_enc = pix_fmt->ycbcr_enc;
143 mbus_fmt->quantization = pix_fmt->quantization;
144 mbus_fmt->xfer_func = pix_fmt->xfer_func;
145 mbus_fmt->code = code;
149 * v4l2_fill_pix_format - Ancillary routine that fills a &struct
150 * v4l2_pix_format_mplane fields from a media bus structure.
152 * @pix_mp_fmt: pointer to &struct v4l2_pix_format_mplane to be filled
153 * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be used as model
156 v4l2_fill_pix_format_mplane(struct v4l2_pix_format_mplane *pix_mp_fmt,
157 const struct v4l2_mbus_framefmt *mbus_fmt)
159 pix_mp_fmt->width = mbus_fmt->width;
160 pix_mp_fmt->height = mbus_fmt->height;
161 pix_mp_fmt->field = mbus_fmt->field;
162 pix_mp_fmt->colorspace = mbus_fmt->colorspace;
163 pix_mp_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
164 pix_mp_fmt->quantization = mbus_fmt->quantization;
165 pix_mp_fmt->xfer_func = mbus_fmt->xfer_func;
169 * v4l2_fill_pix_format - Ancillary routine that fills a &struct
170 * v4l2_mbus_framefmt from a &struct v4l2_pix_format_mplane.
172 * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be filled
173 * @pix_mp_fmt: pointer to &struct v4l2_pix_format_mplane to be used as model
176 v4l2_fill_mbus_format_mplane(struct v4l2_mbus_framefmt *mbus_fmt,
177 const struct v4l2_pix_format_mplane *pix_mp_fmt)
179 mbus_fmt->width = pix_mp_fmt->width;
180 mbus_fmt->height = pix_mp_fmt->height;
181 mbus_fmt->field = pix_mp_fmt->field;
182 mbus_fmt->colorspace = pix_mp_fmt->colorspace;
183 mbus_fmt->ycbcr_enc = pix_mp_fmt->ycbcr_enc;
184 mbus_fmt->quantization = pix_mp_fmt->quantization;
185 mbus_fmt->xfer_func = pix_mp_fmt->xfer_func;