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gerrit-public.fairphone.software / kernel / msm-4.19 / 9a74251d8bee7a25fee89a0be3ccea73e01c1a05 / . / drivers / media / video / soc_mediabus.c
blob: f8d5c87dc2aafff0854006d4dbea5d3dcadd218a [file] [log] [blame]
Guennadi Liakhovetski9a742512009-12-11 11:41:28 -0300[diff] [blame^]1/*
2 * soc-camera media bus helper routines
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#include <linux/kernel.h>
12#include <linux/module.h>
13
14#include <media/v4l2-device.h>
15#include <media/v4l2-mediabus.h>
16#include <media/soc_mediabus.h>
17
18#define MBUS_IDX(f) (V4L2_MBUS_FMT_ ## f - V4L2_MBUS_FMT_FIXED - 1)
19
20static const struct soc_mbus_pixelfmt mbus_fmt[] = {
21 [MBUS_IDX(YUYV8_2X8_LE)] = {
22 .fourcc = V4L2_PIX_FMT_YUYV,
23 .name = "YUYV",
24 .bits_per_sample = 8,
25 .packing = SOC_MBUS_PACKING_2X8_PADHI,
26 .order = SOC_MBUS_ORDER_LE,
27 }, [MBUS_IDX(YVYU8_2X8_LE)] = {
28 .fourcc = V4L2_PIX_FMT_YVYU,
29 .name = "YVYU",
30 .bits_per_sample = 8,
31 .packing = SOC_MBUS_PACKING_2X8_PADHI,
32 .order = SOC_MBUS_ORDER_LE,
33 }, [MBUS_IDX(YUYV8_2X8_BE)] = {
34 .fourcc = V4L2_PIX_FMT_UYVY,
35 .name = "UYVY",
36 .bits_per_sample = 8,
37 .packing = SOC_MBUS_PACKING_2X8_PADHI,
38 .order = SOC_MBUS_ORDER_LE,
39 }, [MBUS_IDX(YVYU8_2X8_BE)] = {
40 .fourcc = V4L2_PIX_FMT_VYUY,
41 .name = "VYUY",
42 .bits_per_sample = 8,
43 .packing = SOC_MBUS_PACKING_2X8_PADHI,
44 .order = SOC_MBUS_ORDER_LE,
45 }, [MBUS_IDX(RGB555_2X8_PADHI_LE)] = {
46 .fourcc = V4L2_PIX_FMT_RGB555,
47 .name = "RGB555",
48 .bits_per_sample = 8,
49 .packing = SOC_MBUS_PACKING_2X8_PADHI,
50 .order = SOC_MBUS_ORDER_LE,
51 }, [MBUS_IDX(RGB555_2X8_PADHI_BE)] = {
52 .fourcc = V4L2_PIX_FMT_RGB555X,
53 .name = "RGB555X",
54 .bits_per_sample = 8,
55 .packing = SOC_MBUS_PACKING_2X8_PADHI,
56 .order = SOC_MBUS_ORDER_LE,
57 }, [MBUS_IDX(RGB565_2X8_LE)] = {
58 .fourcc = V4L2_PIX_FMT_RGB565,
59 .name = "RGB565",
60 .bits_per_sample = 8,
61 .packing = SOC_MBUS_PACKING_2X8_PADHI,
62 .order = SOC_MBUS_ORDER_LE,
63 }, [MBUS_IDX(RGB565_2X8_BE)] = {
64 .fourcc = V4L2_PIX_FMT_RGB565X,
65 .name = "RGB565X",
66 .bits_per_sample = 8,
67 .packing = SOC_MBUS_PACKING_2X8_PADHI,
68 .order = SOC_MBUS_ORDER_LE,
69 }, [MBUS_IDX(SBGGR8_1X8)] = {
70 .fourcc = V4L2_PIX_FMT_SBGGR8,
71 .name = "Bayer 8 BGGR",
72 .bits_per_sample = 8,
73 .packing = SOC_MBUS_PACKING_NONE,
74 .order = SOC_MBUS_ORDER_LE,
75 }, [MBUS_IDX(SBGGR10_1X10)] = {
76 .fourcc = V4L2_PIX_FMT_SBGGR10,
77 .name = "Bayer 10 BGGR",
78 .bits_per_sample = 10,
79 .packing = SOC_MBUS_PACKING_EXTEND16,
80 .order = SOC_MBUS_ORDER_LE,
81 }, [MBUS_IDX(GREY8_1X8)] = {
82 .fourcc = V4L2_PIX_FMT_GREY,
83 .name = "Grey",
84 .bits_per_sample = 8,
85 .packing = SOC_MBUS_PACKING_NONE,
86 .order = SOC_MBUS_ORDER_LE,
87 }, [MBUS_IDX(Y10_1X10)] = {
88 .fourcc = V4L2_PIX_FMT_Y10,
89 .name = "Grey 10bit",
90 .bits_per_sample = 10,
91 .packing = SOC_MBUS_PACKING_EXTEND16,
92 .order = SOC_MBUS_ORDER_LE,
93 }, [MBUS_IDX(SBGGR10_2X8_PADHI_LE)] = {
94 .fourcc = V4L2_PIX_FMT_SBGGR10,
95 .name = "Bayer 10 BGGR",
96 .bits_per_sample = 8,
97 .packing = SOC_MBUS_PACKING_2X8_PADHI,
98 .order = SOC_MBUS_ORDER_LE,
99 }, [MBUS_IDX(SBGGR10_2X8_PADLO_LE)] = {
100 .fourcc = V4L2_PIX_FMT_SBGGR10,
101 .name = "Bayer 10 BGGR",
102 .bits_per_sample = 8,
103 .packing = SOC_MBUS_PACKING_2X8_PADLO,
104 .order = SOC_MBUS_ORDER_LE,
105 }, [MBUS_IDX(SBGGR10_2X8_PADHI_BE)] = {
106 .fourcc = V4L2_PIX_FMT_SBGGR10,
107 .name = "Bayer 10 BGGR",
108 .bits_per_sample = 8,
109 .packing = SOC_MBUS_PACKING_2X8_PADHI,
110 .order = SOC_MBUS_ORDER_BE,
111 }, [MBUS_IDX(SBGGR10_2X8_PADLO_BE)] = {
112 .fourcc = V4L2_PIX_FMT_SBGGR10,
113 .name = "Bayer 10 BGGR",
114 .bits_per_sample = 8,
115 .packing = SOC_MBUS_PACKING_2X8_PADLO,
116 .order = SOC_MBUS_ORDER_BE,
117 },
118};
119
120s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf)
121{
122 switch (mf->packing) {
123 case SOC_MBUS_PACKING_NONE:
124 return width * mf->bits_per_sample / 8;
125 case SOC_MBUS_PACKING_2X8_PADHI:
126 case SOC_MBUS_PACKING_2X8_PADLO:
127 case SOC_MBUS_PACKING_EXTEND16:
128 return width * 2;
129 }
130 return -EINVAL;
131}
132EXPORT_SYMBOL(soc_mbus_bytes_per_line);
133
134const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
135 enum v4l2_mbus_pixelcode code)
136{
137 if ((unsigned int)(code - V4L2_MBUS_FMT_FIXED) > ARRAY_SIZE(mbus_fmt))
138 return NULL;
139 return mbus_fmt + code - V4L2_MBUS_FMT_FIXED - 1;
140}
141EXPORT_SYMBOL(soc_mbus_get_fmtdesc);
142
143static int __init soc_mbus_init(void)
144{
145 return 0;
146}
147
148static void __exit soc_mbus_exit(void)
149{
150}
151
152module_init(soc_mbus_init);
153module_exit(soc_mbus_exit);
154
155MODULE_DESCRIPTION("soc-camera media bus interface");
156MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
157MODULE_LICENSE("GPL v2");