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9a74251d GL |
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 | ||
20 | static const struct soc_mbus_pixelfmt mbus_fmt[] = { | |
ace6e979 | 21 | [MBUS_IDX(YUYV8_2X8)] = { |
9a74251d GL |
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, | |
81355e40 | 27 | }, |
ace6e979 | 28 | [MBUS_IDX(YVYU8_2X8)] = { |
9a74251d GL |
29 | .fourcc = V4L2_PIX_FMT_YVYU, |
30 | .name = "YVYU", | |
31 | .bits_per_sample = 8, | |
32 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
33 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 | 34 | }, |
ace6e979 | 35 | [MBUS_IDX(UYVY8_2X8)] = { |
9a74251d GL |
36 | .fourcc = V4L2_PIX_FMT_UYVY, |
37 | .name = "UYVY", | |
38 | .bits_per_sample = 8, | |
39 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
40 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 | 41 | }, |
ace6e979 | 42 | [MBUS_IDX(VYUY8_2X8)] = { |
9a74251d GL |
43 | .fourcc = V4L2_PIX_FMT_VYUY, |
44 | .name = "VYUY", | |
45 | .bits_per_sample = 8, | |
46 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
47 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
48 | }, |
49 | [MBUS_IDX(RGB555_2X8_PADHI_LE)] = { | |
9a74251d GL |
50 | .fourcc = V4L2_PIX_FMT_RGB555, |
51 | .name = "RGB555", | |
52 | .bits_per_sample = 8, | |
53 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
54 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
55 | }, |
56 | [MBUS_IDX(RGB555_2X8_PADHI_BE)] = { | |
9a74251d GL |
57 | .fourcc = V4L2_PIX_FMT_RGB555X, |
58 | .name = "RGB555X", | |
59 | .bits_per_sample = 8, | |
60 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
61 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
62 | }, |
63 | [MBUS_IDX(RGB565_2X8_LE)] = { | |
9a74251d GL |
64 | .fourcc = V4L2_PIX_FMT_RGB565, |
65 | .name = "RGB565", | |
66 | .bits_per_sample = 8, | |
67 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
68 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
69 | }, |
70 | [MBUS_IDX(RGB565_2X8_BE)] = { | |
9a74251d GL |
71 | .fourcc = V4L2_PIX_FMT_RGB565X, |
72 | .name = "RGB565X", | |
73 | .bits_per_sample = 8, | |
74 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
75 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
76 | }, |
77 | [MBUS_IDX(SBGGR8_1X8)] = { | |
9a74251d GL |
78 | .fourcc = V4L2_PIX_FMT_SBGGR8, |
79 | .name = "Bayer 8 BGGR", | |
80 | .bits_per_sample = 8, | |
81 | .packing = SOC_MBUS_PACKING_NONE, | |
82 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
83 | }, |
84 | [MBUS_IDX(SBGGR10_1X10)] = { | |
9a74251d GL |
85 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
86 | .name = "Bayer 10 BGGR", | |
87 | .bits_per_sample = 10, | |
88 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
89 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
90 | }, |
91 | [MBUS_IDX(GREY8_1X8)] = { | |
9a74251d GL |
92 | .fourcc = V4L2_PIX_FMT_GREY, |
93 | .name = "Grey", | |
94 | .bits_per_sample = 8, | |
95 | .packing = SOC_MBUS_PACKING_NONE, | |
96 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
97 | }, |
98 | [MBUS_IDX(Y10_1X10)] = { | |
9a74251d GL |
99 | .fourcc = V4L2_PIX_FMT_Y10, |
100 | .name = "Grey 10bit", | |
101 | .bits_per_sample = 10, | |
102 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
103 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
104 | }, |
105 | [MBUS_IDX(SBGGR10_2X8_PADHI_LE)] = { | |
9a74251d GL |
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_LE, | |
81355e40 GL |
111 | }, |
112 | [MBUS_IDX(SBGGR10_2X8_PADLO_LE)] = { | |
9a74251d GL |
113 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
114 | .name = "Bayer 10 BGGR", | |
115 | .bits_per_sample = 8, | |
116 | .packing = SOC_MBUS_PACKING_2X8_PADLO, | |
117 | .order = SOC_MBUS_ORDER_LE, | |
81355e40 GL |
118 | }, |
119 | [MBUS_IDX(SBGGR10_2X8_PADHI_BE)] = { | |
9a74251d GL |
120 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
121 | .name = "Bayer 10 BGGR", | |
122 | .bits_per_sample = 8, | |
123 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
124 | .order = SOC_MBUS_ORDER_BE, | |
81355e40 GL |
125 | }, |
126 | [MBUS_IDX(SBGGR10_2X8_PADLO_BE)] = { | |
9a74251d GL |
127 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
128 | .name = "Bayer 10 BGGR", | |
129 | .bits_per_sample = 8, | |
130 | .packing = SOC_MBUS_PACKING_2X8_PADLO, | |
131 | .order = SOC_MBUS_ORDER_BE, | |
132 | }, | |
133 | }; | |
134 | ||
135 | s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf) | |
136 | { | |
137 | switch (mf->packing) { | |
138 | case SOC_MBUS_PACKING_NONE: | |
139 | return width * mf->bits_per_sample / 8; | |
140 | case SOC_MBUS_PACKING_2X8_PADHI: | |
141 | case SOC_MBUS_PACKING_2X8_PADLO: | |
142 | case SOC_MBUS_PACKING_EXTEND16: | |
143 | return width * 2; | |
144 | } | |
145 | return -EINVAL; | |
146 | } | |
147 | EXPORT_SYMBOL(soc_mbus_bytes_per_line); | |
148 | ||
149 | const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( | |
150 | enum v4l2_mbus_pixelcode code) | |
151 | { | |
84f3751d BS |
152 | if (code - V4L2_MBUS_FMT_FIXED > ARRAY_SIZE(mbus_fmt) || |
153 | code <= V4L2_MBUS_FMT_FIXED) | |
9a74251d GL |
154 | return NULL; |
155 | return mbus_fmt + code - V4L2_MBUS_FMT_FIXED - 1; | |
156 | } | |
157 | EXPORT_SYMBOL(soc_mbus_get_fmtdesc); | |
158 | ||
159 | static int __init soc_mbus_init(void) | |
160 | { | |
161 | return 0; | |
162 | } | |
163 | ||
164 | static void __exit soc_mbus_exit(void) | |
165 | { | |
166 | } | |
167 | ||
168 | module_init(soc_mbus_init); | |
169 | module_exit(soc_mbus_exit); | |
170 | ||
171 | MODULE_DESCRIPTION("soc-camera media bus interface"); | |
172 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); | |
173 | MODULE_LICENSE("GPL v2"); |