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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 | ||
93f116d5 GL |
18 | static const struct soc_mbus_lookup mbus_fmt[] = { |
19 | { | |
20 | .code = V4L2_MBUS_FMT_YUYV8_2X8, | |
21 | .fmt = { | |
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, | |
ad3b81fa | 27 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 28 | }, |
93f116d5 GL |
29 | }, { |
30 | .code = V4L2_MBUS_FMT_YVYU8_2X8, | |
31 | .fmt = { | |
9a74251d GL |
32 | .fourcc = V4L2_PIX_FMT_YVYU, |
33 | .name = "YVYU", | |
34 | .bits_per_sample = 8, | |
35 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
36 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 37 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 38 | }, |
93f116d5 GL |
39 | }, { |
40 | .code = V4L2_MBUS_FMT_UYVY8_2X8, | |
41 | .fmt = { | |
9a74251d GL |
42 | .fourcc = V4L2_PIX_FMT_UYVY, |
43 | .name = "UYVY", | |
44 | .bits_per_sample = 8, | |
45 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
46 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 47 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 48 | }, |
93f116d5 GL |
49 | }, { |
50 | .code = V4L2_MBUS_FMT_VYUY8_2X8, | |
51 | .fmt = { | |
9a74251d GL |
52 | .fourcc = V4L2_PIX_FMT_VYUY, |
53 | .name = "VYUY", | |
54 | .bits_per_sample = 8, | |
55 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
56 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 57 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 58 | }, |
93f116d5 GL |
59 | }, { |
60 | .code = V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE, | |
61 | .fmt = { | |
9a74251d GL |
62 | .fourcc = V4L2_PIX_FMT_RGB555, |
63 | .name = "RGB555", | |
64 | .bits_per_sample = 8, | |
65 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
66 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 67 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 68 | }, |
93f116d5 GL |
69 | }, { |
70 | .code = V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE, | |
71 | .fmt = { | |
9a74251d GL |
72 | .fourcc = V4L2_PIX_FMT_RGB555X, |
73 | .name = "RGB555X", | |
74 | .bits_per_sample = 8, | |
75 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
76 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 77 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 78 | }, |
93f116d5 GL |
79 | }, { |
80 | .code = V4L2_MBUS_FMT_RGB565_2X8_LE, | |
81 | .fmt = { | |
9a74251d GL |
82 | .fourcc = V4L2_PIX_FMT_RGB565, |
83 | .name = "RGB565", | |
84 | .bits_per_sample = 8, | |
85 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
86 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 87 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 88 | }, |
93f116d5 GL |
89 | }, { |
90 | .code = V4L2_MBUS_FMT_RGB565_2X8_BE, | |
91 | .fmt = { | |
9a74251d GL |
92 | .fourcc = V4L2_PIX_FMT_RGB565X, |
93 | .name = "RGB565X", | |
94 | .bits_per_sample = 8, | |
95 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
96 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 97 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 98 | }, |
93f116d5 GL |
99 | }, { |
100 | .code = V4L2_MBUS_FMT_SBGGR8_1X8, | |
101 | .fmt = { | |
9a74251d GL |
102 | .fourcc = V4L2_PIX_FMT_SBGGR8, |
103 | .name = "Bayer 8 BGGR", | |
104 | .bits_per_sample = 8, | |
105 | .packing = SOC_MBUS_PACKING_NONE, | |
106 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 107 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 108 | }, |
93f116d5 GL |
109 | }, { |
110 | .code = V4L2_MBUS_FMT_SBGGR10_1X10, | |
111 | .fmt = { | |
9a74251d GL |
112 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
113 | .name = "Bayer 10 BGGR", | |
114 | .bits_per_sample = 10, | |
115 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
116 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 117 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 118 | }, |
93f116d5 GL |
119 | }, { |
120 | .code = V4L2_MBUS_FMT_Y8_1X8, | |
121 | .fmt = { | |
9a74251d GL |
122 | .fourcc = V4L2_PIX_FMT_GREY, |
123 | .name = "Grey", | |
124 | .bits_per_sample = 8, | |
125 | .packing = SOC_MBUS_PACKING_NONE, | |
126 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 127 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 128 | }, |
93f116d5 GL |
129 | }, { |
130 | .code = V4L2_MBUS_FMT_Y10_1X10, | |
131 | .fmt = { | |
9a74251d GL |
132 | .fourcc = V4L2_PIX_FMT_Y10, |
133 | .name = "Grey 10bit", | |
134 | .bits_per_sample = 10, | |
135 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
136 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 137 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 138 | }, |
93f116d5 GL |
139 | }, { |
140 | .code = V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, | |
141 | .fmt = { | |
9a74251d GL |
142 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
143 | .name = "Bayer 10 BGGR", | |
144 | .bits_per_sample = 8, | |
145 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
146 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 147 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 148 | }, |
93f116d5 GL |
149 | }, { |
150 | .code = V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE, | |
151 | .fmt = { | |
9a74251d GL |
152 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
153 | .name = "Bayer 10 BGGR", | |
154 | .bits_per_sample = 8, | |
155 | .packing = SOC_MBUS_PACKING_2X8_PADLO, | |
156 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 157 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 158 | }, |
93f116d5 GL |
159 | }, { |
160 | .code = V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE, | |
161 | .fmt = { | |
9a74251d GL |
162 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
163 | .name = "Bayer 10 BGGR", | |
164 | .bits_per_sample = 8, | |
165 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
166 | .order = SOC_MBUS_ORDER_BE, | |
ad3b81fa | 167 | .layout = SOC_MBUS_LAYOUT_PACKED, |
81355e40 | 168 | }, |
93f116d5 GL |
169 | }, { |
170 | .code = V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE, | |
171 | .fmt = { | |
9a74251d GL |
172 | .fourcc = V4L2_PIX_FMT_SBGGR10, |
173 | .name = "Bayer 10 BGGR", | |
174 | .bits_per_sample = 8, | |
175 | .packing = SOC_MBUS_PACKING_2X8_PADLO, | |
176 | .order = SOC_MBUS_ORDER_BE, | |
ad3b81fa | 177 | .layout = SOC_MBUS_LAYOUT_PACKED, |
9a74251d | 178 | }, |
93f116d5 GL |
179 | }, { |
180 | .code = V4L2_MBUS_FMT_JPEG_1X8, | |
181 | .fmt = { | |
64149deb KL |
182 | .fourcc = V4L2_PIX_FMT_JPEG, |
183 | .name = "JPEG", | |
184 | .bits_per_sample = 8, | |
185 | .packing = SOC_MBUS_PACKING_VARIABLE, | |
186 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 187 | .layout = SOC_MBUS_LAYOUT_PACKED, |
64149deb | 188 | }, |
e23b961d GL |
189 | }, { |
190 | .code = V4L2_MBUS_FMT_RGB444_2X8_PADHI_BE, | |
191 | .fmt = { | |
192 | .fourcc = V4L2_PIX_FMT_RGB444, | |
193 | .name = "RGB444", | |
194 | .bits_per_sample = 8, | |
195 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
196 | .order = SOC_MBUS_ORDER_BE, | |
ad3b81fa | 197 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
198 | }, |
199 | }, { | |
200 | .code = V4L2_MBUS_FMT_YUYV8_1_5X8, | |
201 | .fmt = { | |
202 | .fourcc = V4L2_PIX_FMT_YUV420, | |
203 | .name = "YUYV 4:2:0", | |
204 | .bits_per_sample = 8, | |
205 | .packing = SOC_MBUS_PACKING_1_5X8, | |
206 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 207 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
208 | }, |
209 | }, { | |
210 | .code = V4L2_MBUS_FMT_YVYU8_1_5X8, | |
211 | .fmt = { | |
212 | .fourcc = V4L2_PIX_FMT_YVU420, | |
213 | .name = "YVYU 4:2:0", | |
214 | .bits_per_sample = 8, | |
215 | .packing = SOC_MBUS_PACKING_1_5X8, | |
216 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 217 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
218 | }, |
219 | }, { | |
220 | .code = V4L2_MBUS_FMT_UYVY8_1X16, | |
221 | .fmt = { | |
222 | .fourcc = V4L2_PIX_FMT_UYVY, | |
223 | .name = "UYVY 16bit", | |
224 | .bits_per_sample = 16, | |
225 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
226 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 227 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
228 | }, |
229 | }, { | |
230 | .code = V4L2_MBUS_FMT_VYUY8_1X16, | |
231 | .fmt = { | |
232 | .fourcc = V4L2_PIX_FMT_VYUY, | |
233 | .name = "VYUY 16bit", | |
234 | .bits_per_sample = 16, | |
235 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
236 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 237 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
238 | }, |
239 | }, { | |
240 | .code = V4L2_MBUS_FMT_YUYV8_1X16, | |
241 | .fmt = { | |
242 | .fourcc = V4L2_PIX_FMT_YUYV, | |
243 | .name = "YUYV 16bit", | |
244 | .bits_per_sample = 16, | |
245 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
246 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 247 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
248 | }, |
249 | }, { | |
250 | .code = V4L2_MBUS_FMT_YVYU8_1X16, | |
251 | .fmt = { | |
252 | .fourcc = V4L2_PIX_FMT_YVYU, | |
253 | .name = "YVYU 16bit", | |
254 | .bits_per_sample = 16, | |
255 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
256 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 257 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
258 | }, |
259 | }, { | |
260 | .code = V4L2_MBUS_FMT_SGRBG8_1X8, | |
261 | .fmt = { | |
262 | .fourcc = V4L2_PIX_FMT_SGRBG8, | |
263 | .name = "Bayer 8 GRBG", | |
264 | .bits_per_sample = 8, | |
265 | .packing = SOC_MBUS_PACKING_NONE, | |
266 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 267 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
268 | }, |
269 | }, { | |
270 | .code = V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8, | |
271 | .fmt = { | |
272 | .fourcc = V4L2_PIX_FMT_SGRBG10DPCM8, | |
273 | .name = "Bayer 10 BGGR DPCM 8", | |
274 | .bits_per_sample = 8, | |
275 | .packing = SOC_MBUS_PACKING_NONE, | |
276 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 277 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
278 | }, |
279 | }, { | |
280 | .code = V4L2_MBUS_FMT_SGBRG10_1X10, | |
281 | .fmt = { | |
282 | .fourcc = V4L2_PIX_FMT_SGBRG10, | |
283 | .name = "Bayer 10 GBRG", | |
284 | .bits_per_sample = 10, | |
285 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
286 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 287 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
288 | }, |
289 | }, { | |
290 | .code = V4L2_MBUS_FMT_SGRBG10_1X10, | |
291 | .fmt = { | |
292 | .fourcc = V4L2_PIX_FMT_SGRBG10, | |
293 | .name = "Bayer 10 GRBG", | |
294 | .bits_per_sample = 10, | |
295 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
296 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 297 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
298 | }, |
299 | }, { | |
300 | .code = V4L2_MBUS_FMT_SRGGB10_1X10, | |
301 | .fmt = { | |
302 | .fourcc = V4L2_PIX_FMT_SRGGB10, | |
303 | .name = "Bayer 10 RGGB", | |
304 | .bits_per_sample = 10, | |
305 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
306 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 307 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
308 | }, |
309 | }, { | |
310 | .code = V4L2_MBUS_FMT_SBGGR12_1X12, | |
311 | .fmt = { | |
312 | .fourcc = V4L2_PIX_FMT_SBGGR12, | |
313 | .name = "Bayer 12 BGGR", | |
314 | .bits_per_sample = 12, | |
315 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
316 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 317 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
318 | }, |
319 | }, { | |
320 | .code = V4L2_MBUS_FMT_SGBRG12_1X12, | |
321 | .fmt = { | |
322 | .fourcc = V4L2_PIX_FMT_SGBRG12, | |
323 | .name = "Bayer 12 GBRG", | |
324 | .bits_per_sample = 12, | |
325 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
326 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 327 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
328 | }, |
329 | }, { | |
330 | .code = V4L2_MBUS_FMT_SGRBG12_1X12, | |
331 | .fmt = { | |
332 | .fourcc = V4L2_PIX_FMT_SGRBG12, | |
333 | .name = "Bayer 12 GRBG", | |
334 | .bits_per_sample = 12, | |
335 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
336 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 337 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d GL |
338 | }, |
339 | }, { | |
340 | .code = V4L2_MBUS_FMT_SRGGB12_1X12, | |
341 | .fmt = { | |
342 | .fourcc = V4L2_PIX_FMT_SRGGB12, | |
343 | .name = "Bayer 12 RGGB", | |
344 | .bits_per_sample = 12, | |
345 | .packing = SOC_MBUS_PACKING_EXTEND16, | |
346 | .order = SOC_MBUS_ORDER_LE, | |
ad3b81fa | 347 | .layout = SOC_MBUS_LAYOUT_PACKED, |
e23b961d | 348 | }, |
93f116d5 | 349 | }, |
9a74251d GL |
350 | }; |
351 | ||
cc552b62 GL |
352 | int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf, |
353 | unsigned int *numerator, unsigned int *denominator) | |
48a3c773 AP |
354 | { |
355 | switch (mf->packing) { | |
356 | case SOC_MBUS_PACKING_NONE: | |
357 | case SOC_MBUS_PACKING_EXTEND16: | |
cc552b62 GL |
358 | *numerator = 1; |
359 | *denominator = 1; | |
360 | return 0; | |
48a3c773 AP |
361 | case SOC_MBUS_PACKING_2X8_PADHI: |
362 | case SOC_MBUS_PACKING_2X8_PADLO: | |
cc552b62 GL |
363 | *numerator = 2; |
364 | *denominator = 1; | |
365 | return 0; | |
366 | case SOC_MBUS_PACKING_1_5X8: | |
367 | *numerator = 3; | |
368 | *denominator = 2; | |
369 | return 0; | |
64149deb | 370 | case SOC_MBUS_PACKING_VARIABLE: |
cc552b62 GL |
371 | *numerator = 0; |
372 | *denominator = 1; | |
64149deb | 373 | return 0; |
48a3c773 AP |
374 | } |
375 | return -EINVAL; | |
376 | } | |
377 | EXPORT_SYMBOL(soc_mbus_samples_per_pixel); | |
378 | ||
9a74251d GL |
379 | s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf) |
380 | { | |
4e0e620c LP |
381 | if (mf->layout != SOC_MBUS_LAYOUT_PACKED) |
382 | return width * mf->bits_per_sample / 8; | |
383 | ||
9a74251d GL |
384 | switch (mf->packing) { |
385 | case SOC_MBUS_PACKING_NONE: | |
386 | return width * mf->bits_per_sample / 8; | |
387 | case SOC_MBUS_PACKING_2X8_PADHI: | |
388 | case SOC_MBUS_PACKING_2X8_PADLO: | |
389 | case SOC_MBUS_PACKING_EXTEND16: | |
390 | return width * 2; | |
cc552b62 GL |
391 | case SOC_MBUS_PACKING_1_5X8: |
392 | return width * 3 / 2; | |
64149deb KL |
393 | case SOC_MBUS_PACKING_VARIABLE: |
394 | return 0; | |
9a74251d GL |
395 | } |
396 | return -EINVAL; | |
397 | } | |
398 | EXPORT_SYMBOL(soc_mbus_bytes_per_line); | |
399 | ||
8929c963 LP |
400 | s32 soc_mbus_image_size(const struct soc_mbus_pixelfmt *mf, |
401 | u32 bytes_per_line, u32 height) | |
402 | { | |
403 | if (mf->layout == SOC_MBUS_LAYOUT_PACKED) | |
404 | return bytes_per_line * height; | |
405 | ||
406 | switch (mf->packing) { | |
407 | case SOC_MBUS_PACKING_2X8_PADHI: | |
408 | case SOC_MBUS_PACKING_2X8_PADLO: | |
409 | return bytes_per_line * height * 2; | |
410 | case SOC_MBUS_PACKING_1_5X8: | |
411 | return bytes_per_line * height * 3 / 2; | |
412 | default: | |
413 | return -EINVAL; | |
414 | } | |
415 | } | |
416 | EXPORT_SYMBOL(soc_mbus_image_size); | |
417 | ||
93f116d5 GL |
418 | const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc( |
419 | enum v4l2_mbus_pixelcode code, | |
420 | const struct soc_mbus_lookup *lookup, | |
421 | int n) | |
422 | { | |
423 | int i; | |
424 | ||
425 | for (i = 0; i < n; i++) | |
426 | if (lookup[i].code == code) | |
427 | return &lookup[i].fmt; | |
428 | ||
429 | return NULL; | |
430 | } | |
431 | EXPORT_SYMBOL(soc_mbus_find_fmtdesc); | |
432 | ||
9a74251d GL |
433 | const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( |
434 | enum v4l2_mbus_pixelcode code) | |
435 | { | |
93f116d5 | 436 | return soc_mbus_find_fmtdesc(code, mbus_fmt, ARRAY_SIZE(mbus_fmt)); |
9a74251d GL |
437 | } |
438 | EXPORT_SYMBOL(soc_mbus_get_fmtdesc); | |
439 | ||
32c69fcc GL |
440 | unsigned int soc_mbus_config_compatible(const struct v4l2_mbus_config *cfg, |
441 | unsigned int flags) | |
442 | { | |
443 | unsigned long common_flags; | |
444 | bool hsync = true, vsync = true, pclk, data, mode; | |
445 | bool mipi_lanes, mipi_clock; | |
446 | ||
447 | common_flags = cfg->flags & flags; | |
448 | ||
449 | switch (cfg->type) { | |
450 | case V4L2_MBUS_PARALLEL: | |
451 | hsync = common_flags & (V4L2_MBUS_HSYNC_ACTIVE_HIGH | | |
452 | V4L2_MBUS_HSYNC_ACTIVE_LOW); | |
453 | vsync = common_flags & (V4L2_MBUS_VSYNC_ACTIVE_HIGH | | |
454 | V4L2_MBUS_VSYNC_ACTIVE_LOW); | |
455 | case V4L2_MBUS_BT656: | |
456 | pclk = common_flags & (V4L2_MBUS_PCLK_SAMPLE_RISING | | |
457 | V4L2_MBUS_PCLK_SAMPLE_FALLING); | |
458 | data = common_flags & (V4L2_MBUS_DATA_ACTIVE_HIGH | | |
459 | V4L2_MBUS_DATA_ACTIVE_LOW); | |
460 | mode = common_flags & (V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE); | |
461 | return (!hsync || !vsync || !pclk || !data || !mode) ? | |
462 | 0 : common_flags; | |
463 | case V4L2_MBUS_CSI2: | |
464 | mipi_lanes = common_flags & V4L2_MBUS_CSI2_LANES; | |
465 | mipi_clock = common_flags & (V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK | | |
466 | V4L2_MBUS_CSI2_CONTINUOUS_CLOCK); | |
467 | return (!mipi_lanes || !mipi_clock) ? 0 : common_flags; | |
468 | } | |
469 | return 0; | |
470 | } | |
471 | EXPORT_SYMBOL(soc_mbus_config_compatible); | |
472 | ||
9a74251d GL |
473 | static int __init soc_mbus_init(void) |
474 | { | |
475 | return 0; | |
476 | } | |
477 | ||
478 | static void __exit soc_mbus_exit(void) | |
479 | { | |
480 | } | |
481 | ||
482 | module_init(soc_mbus_init); | |
483 | module_exit(soc_mbus_exit); | |
484 | ||
485 | MODULE_DESCRIPTION("soc-camera media bus interface"); | |
486 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); | |
487 | MODULE_LICENSE("GPL v2"); |