Commit | Line | Data |
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8f37cf25 | 1 | /* |
0172fea3 | 2 | * Driver for RJ54N1CB0C CMOS Image Sensor from Sharp |
8f37cf25 GL |
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/delay.h> | |
12 | #include <linux/i2c.h> | |
13 | #include <linux/slab.h> | |
95d20109 | 14 | #include <linux/v4l2-mediabus.h> |
8f37cf25 GL |
15 | #include <linux/videodev2.h> |
16 | ||
a6b5f200 | 17 | #include <media/rj54n1cb0c.h> |
8f37cf25 | 18 | #include <media/soc_camera.h> |
a6b5f200 GL |
19 | #include <media/v4l2-subdev.h> |
20 | #include <media/v4l2-chip-ident.h> | |
25e965ad | 21 | #include <media/v4l2-ctrls.h> |
8f37cf25 GL |
22 | |
23 | #define RJ54N1_DEV_CODE 0x0400 | |
24 | #define RJ54N1_DEV_CODE2 0x0401 | |
25 | #define RJ54N1_OUT_SEL 0x0403 | |
26 | #define RJ54N1_XY_OUTPUT_SIZE_S_H 0x0404 | |
27 | #define RJ54N1_X_OUTPUT_SIZE_S_L 0x0405 | |
28 | #define RJ54N1_Y_OUTPUT_SIZE_S_L 0x0406 | |
29 | #define RJ54N1_XY_OUTPUT_SIZE_P_H 0x0407 | |
30 | #define RJ54N1_X_OUTPUT_SIZE_P_L 0x0408 | |
31 | #define RJ54N1_Y_OUTPUT_SIZE_P_L 0x0409 | |
32 | #define RJ54N1_LINE_LENGTH_PCK_S_H 0x040a | |
33 | #define RJ54N1_LINE_LENGTH_PCK_S_L 0x040b | |
34 | #define RJ54N1_LINE_LENGTH_PCK_P_H 0x040c | |
35 | #define RJ54N1_LINE_LENGTH_PCK_P_L 0x040d | |
36 | #define RJ54N1_RESIZE_N 0x040e | |
37 | #define RJ54N1_RESIZE_N_STEP 0x040f | |
38 | #define RJ54N1_RESIZE_STEP 0x0410 | |
39 | #define RJ54N1_RESIZE_HOLD_H 0x0411 | |
40 | #define RJ54N1_RESIZE_HOLD_L 0x0412 | |
41 | #define RJ54N1_H_OBEN_OFS 0x0413 | |
42 | #define RJ54N1_V_OBEN_OFS 0x0414 | |
43 | #define RJ54N1_RESIZE_CONTROL 0x0415 | |
a6b5f200 | 44 | #define RJ54N1_STILL_CONTROL 0x0417 |
8f37cf25 GL |
45 | #define RJ54N1_INC_USE_SEL_H 0x0425 |
46 | #define RJ54N1_INC_USE_SEL_L 0x0426 | |
47 | #define RJ54N1_MIRROR_STILL_MODE 0x0427 | |
48 | #define RJ54N1_INIT_START 0x0428 | |
49 | #define RJ54N1_SCALE_1_2_LEV 0x0429 | |
50 | #define RJ54N1_SCALE_4_LEV 0x042a | |
51 | #define RJ54N1_Y_GAIN 0x04d8 | |
52 | #define RJ54N1_APT_GAIN_UP 0x04fa | |
53 | #define RJ54N1_RA_SEL_UL 0x0530 | |
54 | #define RJ54N1_BYTE_SWAP 0x0531 | |
55 | #define RJ54N1_OUT_SIGPO 0x053b | |
a6b5f200 GL |
56 | #define RJ54N1_WB_SEL_WEIGHT_I 0x054e |
57 | #define RJ54N1_BIT8_WB 0x0569 | |
58 | #define RJ54N1_HCAPS_WB 0x056a | |
59 | #define RJ54N1_VCAPS_WB 0x056b | |
60 | #define RJ54N1_HCAPE_WB 0x056c | |
61 | #define RJ54N1_VCAPE_WB 0x056d | |
62 | #define RJ54N1_EXPOSURE_CONTROL 0x058c | |
8f37cf25 GL |
63 | #define RJ54N1_FRAME_LENGTH_S_H 0x0595 |
64 | #define RJ54N1_FRAME_LENGTH_S_L 0x0596 | |
65 | #define RJ54N1_FRAME_LENGTH_P_H 0x0597 | |
66 | #define RJ54N1_FRAME_LENGTH_P_L 0x0598 | |
a6b5f200 GL |
67 | #define RJ54N1_PEAK_H 0x05b7 |
68 | #define RJ54N1_PEAK_50 0x05b8 | |
69 | #define RJ54N1_PEAK_60 0x05b9 | |
70 | #define RJ54N1_PEAK_DIFF 0x05ba | |
8f37cf25 GL |
71 | #define RJ54N1_IOC 0x05ef |
72 | #define RJ54N1_TG_BYPASS 0x0700 | |
73 | #define RJ54N1_PLL_L 0x0701 | |
74 | #define RJ54N1_PLL_N 0x0702 | |
75 | #define RJ54N1_PLL_EN 0x0704 | |
76 | #define RJ54N1_RATIO_TG 0x0706 | |
77 | #define RJ54N1_RATIO_T 0x0707 | |
78 | #define RJ54N1_RATIO_R 0x0708 | |
79 | #define RJ54N1_RAMP_TGCLK_EN 0x0709 | |
80 | #define RJ54N1_OCLK_DSP 0x0710 | |
81 | #define RJ54N1_RATIO_OP 0x0711 | |
82 | #define RJ54N1_RATIO_O 0x0712 | |
83 | #define RJ54N1_OCLK_SEL_EN 0x0713 | |
84 | #define RJ54N1_CLK_RST 0x0717 | |
85 | #define RJ54N1_RESET_STANDBY 0x0718 | |
a6b5f200 | 86 | #define RJ54N1_FWFLG 0x07fe |
8f37cf25 GL |
87 | |
88 | #define E_EXCLK (1 << 7) | |
89 | #define SOFT_STDBY (1 << 4) | |
90 | #define SEN_RSTX (1 << 2) | |
91 | #define TG_RSTX (1 << 1) | |
92 | #define DSP_RSTX (1 << 0) | |
93 | ||
94 | #define RESIZE_HOLD_SEL (1 << 2) | |
95 | #define RESIZE_GO (1 << 1) | |
96 | ||
a6b5f200 GL |
97 | /* |
98 | * When cropping, the camera automatically centers the cropped region, there | |
99 | * doesn't seem to be a way to specify an explicit location of the rectangle. | |
100 | */ | |
8f37cf25 GL |
101 | #define RJ54N1_COLUMN_SKIP 0 |
102 | #define RJ54N1_ROW_SKIP 0 | |
103 | #define RJ54N1_MAX_WIDTH 1600 | |
104 | #define RJ54N1_MAX_HEIGHT 1200 | |
105 | ||
a6b5f200 GL |
106 | #define PLL_L 2 |
107 | #define PLL_N 0x31 | |
108 | ||
8f37cf25 GL |
109 | /* I2C addresses: 0x50, 0x51, 0x60, 0x61 */ |
110 | ||
760697be GL |
111 | /* RJ54N1CB0C has only one fixed colorspace per pixelcode */ |
112 | struct rj54n1_datafmt { | |
113 | enum v4l2_mbus_pixelcode code; | |
114 | enum v4l2_colorspace colorspace; | |
115 | }; | |
116 | ||
117 | /* Find a data format by a pixel code in an array */ | |
118 | static const struct rj54n1_datafmt *rj54n1_find_datafmt( | |
119 | enum v4l2_mbus_pixelcode code, const struct rj54n1_datafmt *fmt, | |
120 | int n) | |
121 | { | |
122 | int i; | |
123 | for (i = 0; i < n; i++) | |
124 | if (fmt[i].code == code) | |
125 | return fmt + i; | |
126 | ||
127 | return NULL; | |
128 | } | |
129 | ||
130 | static const struct rj54n1_datafmt rj54n1_colour_fmts[] = { | |
ace6e979 GL |
131 | {V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG}, |
132 | {V4L2_MBUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG}, | |
760697be GL |
133 | {V4L2_MBUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB}, |
134 | {V4L2_MBUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB}, | |
135 | {V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, | |
136 | {V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE, V4L2_COLORSPACE_SRGB}, | |
137 | {V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB}, | |
138 | {V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE, V4L2_COLORSPACE_SRGB}, | |
139 | {V4L2_MBUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, | |
8f37cf25 GL |
140 | }; |
141 | ||
142 | struct rj54n1_clock_div { | |
a6b5f200 | 143 | u8 ratio_tg; /* can be 0 or an odd number */ |
8f37cf25 GL |
144 | u8 ratio_t; |
145 | u8 ratio_r; | |
146 | u8 ratio_op; | |
147 | u8 ratio_o; | |
148 | }; | |
149 | ||
150 | struct rj54n1 { | |
151 | struct v4l2_subdev subdev; | |
25e965ad | 152 | struct v4l2_ctrl_handler hdl; |
a6b5f200 | 153 | struct rj54n1_clock_div clk_div; |
760697be | 154 | const struct rj54n1_datafmt *fmt; |
8f37cf25 | 155 | struct v4l2_rect rect; /* Sensor window */ |
a6b5f200 GL |
156 | unsigned int tgclk_mhz; |
157 | bool auto_wb; | |
8f37cf25 GL |
158 | unsigned short width; /* Output window */ |
159 | unsigned short height; | |
160 | unsigned short resize; /* Sensor * 1024 / resize = Output */ | |
8f37cf25 GL |
161 | unsigned short scale; |
162 | u8 bank; | |
163 | }; | |
164 | ||
165 | struct rj54n1_reg_val { | |
166 | u16 reg; | |
167 | u8 val; | |
168 | }; | |
169 | ||
9d68e8de | 170 | static const struct rj54n1_reg_val bank_4[] = { |
8f37cf25 GL |
171 | {0x417, 0}, |
172 | {0x42c, 0}, | |
173 | {0x42d, 0xf0}, | |
174 | {0x42e, 0}, | |
175 | {0x42f, 0x50}, | |
176 | {0x430, 0xf5}, | |
177 | {0x431, 0x16}, | |
178 | {0x432, 0x20}, | |
179 | {0x433, 0}, | |
180 | {0x434, 0xc8}, | |
181 | {0x43c, 8}, | |
182 | {0x43e, 0x90}, | |
183 | {0x445, 0x83}, | |
184 | {0x4ba, 0x58}, | |
185 | {0x4bb, 4}, | |
186 | {0x4bc, 0x20}, | |
187 | {0x4db, 4}, | |
188 | {0x4fe, 2}, | |
189 | }; | |
190 | ||
9d68e8de | 191 | static const struct rj54n1_reg_val bank_5[] = { |
8f37cf25 GL |
192 | {0x514, 0}, |
193 | {0x516, 0}, | |
194 | {0x518, 0}, | |
195 | {0x51a, 0}, | |
196 | {0x51d, 0xff}, | |
197 | {0x56f, 0x28}, | |
198 | {0x575, 0x40}, | |
199 | {0x5bc, 0x48}, | |
200 | {0x5c1, 6}, | |
201 | {0x5e5, 0x11}, | |
202 | {0x5e6, 0x43}, | |
203 | {0x5e7, 0x33}, | |
204 | {0x5e8, 0x21}, | |
205 | {0x5e9, 0x30}, | |
206 | {0x5ea, 0x0}, | |
207 | {0x5eb, 0xa5}, | |
208 | {0x5ec, 0xff}, | |
209 | {0x5fe, 2}, | |
210 | }; | |
211 | ||
9d68e8de | 212 | static const struct rj54n1_reg_val bank_7[] = { |
8f37cf25 GL |
213 | {0x70a, 0}, |
214 | {0x714, 0xff}, | |
215 | {0x715, 0xff}, | |
216 | {0x716, 0x1f}, | |
a6b5f200 | 217 | {0x7FE, 2}, |
8f37cf25 GL |
218 | }; |
219 | ||
9d68e8de | 220 | static const struct rj54n1_reg_val bank_8[] = { |
8f37cf25 GL |
221 | {0x800, 0x00}, |
222 | {0x801, 0x01}, | |
223 | {0x802, 0x61}, | |
224 | {0x805, 0x00}, | |
225 | {0x806, 0x00}, | |
226 | {0x807, 0x00}, | |
227 | {0x808, 0x00}, | |
228 | {0x809, 0x01}, | |
229 | {0x80A, 0x61}, | |
230 | {0x80B, 0x00}, | |
231 | {0x80C, 0x01}, | |
232 | {0x80D, 0x00}, | |
233 | {0x80E, 0x00}, | |
234 | {0x80F, 0x00}, | |
235 | {0x810, 0x00}, | |
236 | {0x811, 0x01}, | |
237 | {0x812, 0x61}, | |
238 | {0x813, 0x00}, | |
239 | {0x814, 0x11}, | |
240 | {0x815, 0x00}, | |
241 | {0x816, 0x41}, | |
242 | {0x817, 0x00}, | |
243 | {0x818, 0x51}, | |
244 | {0x819, 0x01}, | |
245 | {0x81A, 0x1F}, | |
246 | {0x81B, 0x00}, | |
247 | {0x81C, 0x01}, | |
248 | {0x81D, 0x00}, | |
249 | {0x81E, 0x11}, | |
250 | {0x81F, 0x00}, | |
251 | {0x820, 0x41}, | |
252 | {0x821, 0x00}, | |
253 | {0x822, 0x51}, | |
254 | {0x823, 0x00}, | |
255 | {0x824, 0x00}, | |
256 | {0x825, 0x00}, | |
257 | {0x826, 0x47}, | |
258 | {0x827, 0x01}, | |
259 | {0x828, 0x4F}, | |
260 | {0x829, 0x00}, | |
261 | {0x82A, 0x00}, | |
262 | {0x82B, 0x00}, | |
263 | {0x82C, 0x30}, | |
264 | {0x82D, 0x00}, | |
265 | {0x82E, 0x40}, | |
266 | {0x82F, 0x00}, | |
267 | {0x830, 0xB3}, | |
268 | {0x831, 0x00}, | |
269 | {0x832, 0xE3}, | |
270 | {0x833, 0x00}, | |
271 | {0x834, 0x00}, | |
272 | {0x835, 0x00}, | |
273 | {0x836, 0x00}, | |
274 | {0x837, 0x00}, | |
275 | {0x838, 0x00}, | |
276 | {0x839, 0x01}, | |
277 | {0x83A, 0x61}, | |
278 | {0x83B, 0x00}, | |
279 | {0x83C, 0x01}, | |
280 | {0x83D, 0x00}, | |
281 | {0x83E, 0x00}, | |
282 | {0x83F, 0x00}, | |
283 | {0x840, 0x00}, | |
284 | {0x841, 0x01}, | |
285 | {0x842, 0x61}, | |
286 | {0x843, 0x00}, | |
287 | {0x844, 0x1D}, | |
288 | {0x845, 0x00}, | |
289 | {0x846, 0x00}, | |
290 | {0x847, 0x00}, | |
291 | {0x848, 0x00}, | |
292 | {0x849, 0x01}, | |
293 | {0x84A, 0x1F}, | |
294 | {0x84B, 0x00}, | |
295 | {0x84C, 0x05}, | |
296 | {0x84D, 0x00}, | |
297 | {0x84E, 0x19}, | |
298 | {0x84F, 0x01}, | |
299 | {0x850, 0x21}, | |
300 | {0x851, 0x01}, | |
301 | {0x852, 0x5D}, | |
302 | {0x853, 0x00}, | |
303 | {0x854, 0x00}, | |
304 | {0x855, 0x00}, | |
305 | {0x856, 0x19}, | |
306 | {0x857, 0x01}, | |
307 | {0x858, 0x21}, | |
308 | {0x859, 0x00}, | |
309 | {0x85A, 0x00}, | |
310 | {0x85B, 0x00}, | |
311 | {0x85C, 0x00}, | |
312 | {0x85D, 0x00}, | |
313 | {0x85E, 0x00}, | |
314 | {0x85F, 0x00}, | |
315 | {0x860, 0xB3}, | |
316 | {0x861, 0x00}, | |
317 | {0x862, 0xE3}, | |
318 | {0x863, 0x00}, | |
319 | {0x864, 0x00}, | |
320 | {0x865, 0x00}, | |
321 | {0x866, 0x00}, | |
322 | {0x867, 0x00}, | |
323 | {0x868, 0x00}, | |
324 | {0x869, 0xE2}, | |
325 | {0x86A, 0x00}, | |
326 | {0x86B, 0x01}, | |
327 | {0x86C, 0x06}, | |
328 | {0x86D, 0x00}, | |
329 | {0x86E, 0x00}, | |
330 | {0x86F, 0x00}, | |
331 | {0x870, 0x60}, | |
332 | {0x871, 0x8C}, | |
333 | {0x872, 0x10}, | |
334 | {0x873, 0x00}, | |
335 | {0x874, 0xE0}, | |
336 | {0x875, 0x00}, | |
337 | {0x876, 0x27}, | |
338 | {0x877, 0x01}, | |
339 | {0x878, 0x00}, | |
340 | {0x879, 0x00}, | |
341 | {0x87A, 0x00}, | |
342 | {0x87B, 0x03}, | |
343 | {0x87C, 0x00}, | |
344 | {0x87D, 0x00}, | |
345 | {0x87E, 0x00}, | |
346 | {0x87F, 0x00}, | |
347 | {0x880, 0x00}, | |
348 | {0x881, 0x00}, | |
349 | {0x882, 0x00}, | |
350 | {0x883, 0x00}, | |
351 | {0x884, 0x00}, | |
352 | {0x885, 0x00}, | |
353 | {0x886, 0xF8}, | |
354 | {0x887, 0x00}, | |
355 | {0x888, 0x03}, | |
356 | {0x889, 0x00}, | |
357 | {0x88A, 0x64}, | |
358 | {0x88B, 0x00}, | |
359 | {0x88C, 0x03}, | |
360 | {0x88D, 0x00}, | |
361 | {0x88E, 0xB1}, | |
362 | {0x88F, 0x00}, | |
363 | {0x890, 0x03}, | |
364 | {0x891, 0x01}, | |
365 | {0x892, 0x1D}, | |
366 | {0x893, 0x00}, | |
367 | {0x894, 0x03}, | |
368 | {0x895, 0x01}, | |
369 | {0x896, 0x4B}, | |
370 | {0x897, 0x00}, | |
371 | {0x898, 0xE5}, | |
372 | {0x899, 0x00}, | |
373 | {0x89A, 0x01}, | |
374 | {0x89B, 0x00}, | |
375 | {0x89C, 0x01}, | |
376 | {0x89D, 0x04}, | |
377 | {0x89E, 0xC8}, | |
378 | {0x89F, 0x00}, | |
379 | {0x8A0, 0x01}, | |
380 | {0x8A1, 0x01}, | |
381 | {0x8A2, 0x61}, | |
382 | {0x8A3, 0x00}, | |
383 | {0x8A4, 0x01}, | |
384 | {0x8A5, 0x00}, | |
385 | {0x8A6, 0x00}, | |
386 | {0x8A7, 0x00}, | |
387 | {0x8A8, 0x00}, | |
388 | {0x8A9, 0x00}, | |
389 | {0x8AA, 0x7F}, | |
390 | {0x8AB, 0x03}, | |
391 | {0x8AC, 0x00}, | |
392 | {0x8AD, 0x00}, | |
393 | {0x8AE, 0x00}, | |
394 | {0x8AF, 0x00}, | |
395 | {0x8B0, 0x00}, | |
396 | {0x8B1, 0x00}, | |
397 | {0x8B6, 0x00}, | |
398 | {0x8B7, 0x01}, | |
399 | {0x8B8, 0x00}, | |
400 | {0x8B9, 0x00}, | |
401 | {0x8BA, 0x02}, | |
402 | {0x8BB, 0x00}, | |
403 | {0x8BC, 0xFF}, | |
404 | {0x8BD, 0x00}, | |
a6b5f200 | 405 | {0x8FE, 2}, |
8f37cf25 GL |
406 | }; |
407 | ||
9d68e8de | 408 | static const struct rj54n1_reg_val bank_10[] = { |
8f37cf25 GL |
409 | {0x10bf, 0x69} |
410 | }; | |
411 | ||
412 | /* Clock dividers - these are default register values, divider = register + 1 */ | |
9d68e8de | 413 | static const struct rj54n1_clock_div clk_div = { |
8f37cf25 GL |
414 | .ratio_tg = 3 /* default: 5 */, |
415 | .ratio_t = 4 /* default: 1 */, | |
416 | .ratio_r = 4 /* default: 0 */, | |
417 | .ratio_op = 1 /* default: 5 */, | |
418 | .ratio_o = 9 /* default: 0 */, | |
419 | }; | |
420 | ||
421 | static struct rj54n1 *to_rj54n1(const struct i2c_client *client) | |
422 | { | |
423 | return container_of(i2c_get_clientdata(client), struct rj54n1, subdev); | |
424 | } | |
425 | ||
426 | static int reg_read(struct i2c_client *client, const u16 reg) | |
427 | { | |
428 | struct rj54n1 *rj54n1 = to_rj54n1(client); | |
429 | int ret; | |
430 | ||
431 | /* set bank */ | |
432 | if (rj54n1->bank != reg >> 8) { | |
433 | dev_dbg(&client->dev, "[0x%x] = 0x%x\n", 0xff, reg >> 8); | |
434 | ret = i2c_smbus_write_byte_data(client, 0xff, reg >> 8); | |
435 | if (ret < 0) | |
436 | return ret; | |
437 | rj54n1->bank = reg >> 8; | |
438 | } | |
439 | return i2c_smbus_read_byte_data(client, reg & 0xff); | |
440 | } | |
441 | ||
442 | static int reg_write(struct i2c_client *client, const u16 reg, | |
443 | const u8 data) | |
444 | { | |
445 | struct rj54n1 *rj54n1 = to_rj54n1(client); | |
446 | int ret; | |
447 | ||
448 | /* set bank */ | |
449 | if (rj54n1->bank != reg >> 8) { | |
450 | dev_dbg(&client->dev, "[0x%x] = 0x%x\n", 0xff, reg >> 8); | |
451 | ret = i2c_smbus_write_byte_data(client, 0xff, reg >> 8); | |
452 | if (ret < 0) | |
453 | return ret; | |
454 | rj54n1->bank = reg >> 8; | |
455 | } | |
456 | dev_dbg(&client->dev, "[0x%x] = 0x%x\n", reg & 0xff, data); | |
457 | return i2c_smbus_write_byte_data(client, reg & 0xff, data); | |
458 | } | |
459 | ||
460 | static int reg_set(struct i2c_client *client, const u16 reg, | |
461 | const u8 data, const u8 mask) | |
462 | { | |
463 | int ret; | |
464 | ||
465 | ret = reg_read(client, reg); | |
466 | if (ret < 0) | |
467 | return ret; | |
468 | return reg_write(client, reg, (ret & ~mask) | (data & mask)); | |
469 | } | |
470 | ||
471 | static int reg_write_multiple(struct i2c_client *client, | |
472 | const struct rj54n1_reg_val *rv, const int n) | |
473 | { | |
474 | int i, ret; | |
475 | ||
476 | for (i = 0; i < n; i++) { | |
477 | ret = reg_write(client, rv->reg, rv->val); | |
478 | if (ret < 0) | |
479 | return ret; | |
480 | rv++; | |
481 | } | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
3805f201 | 486 | static int rj54n1_enum_fmt(struct v4l2_subdev *sd, unsigned int index, |
760697be GL |
487 | enum v4l2_mbus_pixelcode *code) |
488 | { | |
3805f201 | 489 | if (index >= ARRAY_SIZE(rj54n1_colour_fmts)) |
760697be GL |
490 | return -EINVAL; |
491 | ||
492 | *code = rj54n1_colour_fmts[index].code; | |
493 | return 0; | |
494 | } | |
495 | ||
8f37cf25 GL |
496 | static int rj54n1_s_stream(struct v4l2_subdev *sd, int enable) |
497 | { | |
c4ce6d14 | 498 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
a6b5f200 GL |
499 | |
500 | /* Switch between preview and still shot modes */ | |
501 | return reg_set(client, RJ54N1_STILL_CONTROL, (!enable) << 7, 0x80); | |
8f37cf25 GL |
502 | } |
503 | ||
8f37cf25 GL |
504 | static int rj54n1_set_rect(struct i2c_client *client, |
505 | u16 reg_x, u16 reg_y, u16 reg_xy, | |
506 | u32 width, u32 height) | |
507 | { | |
508 | int ret; | |
509 | ||
510 | ret = reg_write(client, reg_xy, | |
511 | ((width >> 4) & 0x70) | | |
512 | ((height >> 8) & 7)); | |
513 | ||
514 | if (!ret) | |
515 | ret = reg_write(client, reg_x, width & 0xff); | |
516 | if (!ret) | |
517 | ret = reg_write(client, reg_y, height & 0xff); | |
518 | ||
519 | return ret; | |
520 | } | |
521 | ||
522 | /* | |
523 | * Some commands, specifically certain initialisation sequences, require | |
524 | * a commit operation. | |
525 | */ | |
526 | static int rj54n1_commit(struct i2c_client *client) | |
527 | { | |
528 | int ret = reg_write(client, RJ54N1_INIT_START, 1); | |
529 | msleep(10); | |
530 | if (!ret) | |
531 | ret = reg_write(client, RJ54N1_INIT_START, 0); | |
532 | return ret; | |
533 | } | |
534 | ||
e26b3144 MN |
535 | static int rj54n1_sensor_scale(struct v4l2_subdev *sd, s32 *in_w, s32 *in_h, |
536 | s32 *out_w, s32 *out_h); | |
a6b5f200 GL |
537 | |
538 | static int rj54n1_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) | |
539 | { | |
c4ce6d14 | 540 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
a6b5f200 GL |
541 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
542 | struct v4l2_rect *rect = &a->c; | |
e26b3144 | 543 | int dummy = 0, output_w, output_h, |
a6b5f200 GL |
544 | input_w = rect->width, input_h = rect->height; |
545 | int ret; | |
546 | ||
547 | /* arbitrary minimum width and height, edges unimportant */ | |
548 | soc_camera_limit_side(&dummy, &input_w, | |
549 | RJ54N1_COLUMN_SKIP, 8, RJ54N1_MAX_WIDTH); | |
550 | ||
551 | soc_camera_limit_side(&dummy, &input_h, | |
552 | RJ54N1_ROW_SKIP, 8, RJ54N1_MAX_HEIGHT); | |
553 | ||
554 | output_w = (input_w * 1024 + rj54n1->resize / 2) / rj54n1->resize; | |
555 | output_h = (input_h * 1024 + rj54n1->resize / 2) / rj54n1->resize; | |
556 | ||
e26b3144 | 557 | dev_dbg(&client->dev, "Scaling for %dx%d : %u = %dx%d\n", |
a6b5f200 GL |
558 | input_w, input_h, rj54n1->resize, output_w, output_h); |
559 | ||
560 | ret = rj54n1_sensor_scale(sd, &input_w, &input_h, &output_w, &output_h); | |
561 | if (ret < 0) | |
562 | return ret; | |
563 | ||
564 | rj54n1->width = output_w; | |
565 | rj54n1->height = output_h; | |
566 | rj54n1->resize = ret; | |
567 | rj54n1->rect.width = input_w; | |
568 | rj54n1->rect.height = input_h; | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
8f37cf25 GL |
573 | static int rj54n1_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) |
574 | { | |
c4ce6d14 | 575 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 GL |
576 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
577 | ||
578 | a->c = rj54n1->rect; | |
579 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
580 | ||
581 | return 0; | |
582 | } | |
583 | ||
584 | static int rj54n1_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) | |
585 | { | |
586 | a->bounds.left = RJ54N1_COLUMN_SKIP; | |
587 | a->bounds.top = RJ54N1_ROW_SKIP; | |
588 | a->bounds.width = RJ54N1_MAX_WIDTH; | |
589 | a->bounds.height = RJ54N1_MAX_HEIGHT; | |
590 | a->defrect = a->bounds; | |
591 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
592 | a->pixelaspect.numerator = 1; | |
593 | a->pixelaspect.denominator = 1; | |
594 | ||
595 | return 0; | |
596 | } | |
597 | ||
760697be GL |
598 | static int rj54n1_g_fmt(struct v4l2_subdev *sd, |
599 | struct v4l2_mbus_framefmt *mf) | |
8f37cf25 | 600 | { |
c4ce6d14 | 601 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 | 602 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
8f37cf25 | 603 | |
760697be GL |
604 | mf->code = rj54n1->fmt->code; |
605 | mf->colorspace = rj54n1->fmt->colorspace; | |
606 | mf->field = V4L2_FIELD_NONE; | |
607 | mf->width = rj54n1->width; | |
608 | mf->height = rj54n1->height; | |
8f37cf25 GL |
609 | |
610 | return 0; | |
611 | } | |
612 | ||
613 | /* | |
614 | * The actual geometry configuration routine. It scales the input window into | |
615 | * the output one, updates the window sizes and returns an error or the resize | |
616 | * coefficient on success. Note: we only use the "Fixed Scaling" on this camera. | |
617 | */ | |
e26b3144 MN |
618 | static int rj54n1_sensor_scale(struct v4l2_subdev *sd, s32 *in_w, s32 *in_h, |
619 | s32 *out_w, s32 *out_h) | |
8f37cf25 | 620 | { |
c4ce6d14 | 621 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
a6b5f200 | 622 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
8f37cf25 GL |
623 | unsigned int skip, resize, input_w = *in_w, input_h = *in_h, |
624 | output_w = *out_w, output_h = *out_h; | |
a6b5f200 GL |
625 | u16 inc_sel, wb_bit8, wb_left, wb_right, wb_top, wb_bottom; |
626 | unsigned int peak, peak_50, peak_60; | |
8f37cf25 GL |
627 | int ret; |
628 | ||
a6b5f200 GL |
629 | /* |
630 | * We have a problem with crops, where the window is larger than 512x384 | |
631 | * and output window is larger than a half of the input one. In this | |
632 | * case we have to either reduce the input window to equal or below | |
633 | * 512x384 or the output window to equal or below 1/2 of the input. | |
634 | */ | |
635 | if (output_w > max(512U, input_w / 2)) { | |
636 | if (2 * output_w > RJ54N1_MAX_WIDTH) { | |
637 | input_w = RJ54N1_MAX_WIDTH; | |
638 | output_w = RJ54N1_MAX_WIDTH / 2; | |
639 | } else { | |
640 | input_w = output_w * 2; | |
641 | } | |
642 | ||
643 | dev_dbg(&client->dev, "Adjusted output width: in %u, out %u\n", | |
644 | input_w, output_w); | |
645 | } | |
646 | ||
647 | if (output_h > max(384U, input_h / 2)) { | |
648 | if (2 * output_h > RJ54N1_MAX_HEIGHT) { | |
649 | input_h = RJ54N1_MAX_HEIGHT; | |
650 | output_h = RJ54N1_MAX_HEIGHT / 2; | |
651 | } else { | |
652 | input_h = output_h * 2; | |
653 | } | |
654 | ||
655 | dev_dbg(&client->dev, "Adjusted output height: in %u, out %u\n", | |
656 | input_h, output_h); | |
657 | } | |
658 | ||
659 | /* Idea: use the read mode for snapshots, handle separate geometries */ | |
8f37cf25 GL |
660 | ret = rj54n1_set_rect(client, RJ54N1_X_OUTPUT_SIZE_S_L, |
661 | RJ54N1_Y_OUTPUT_SIZE_S_L, | |
662 | RJ54N1_XY_OUTPUT_SIZE_S_H, output_w, output_h); | |
663 | if (!ret) | |
664 | ret = rj54n1_set_rect(client, RJ54N1_X_OUTPUT_SIZE_P_L, | |
665 | RJ54N1_Y_OUTPUT_SIZE_P_L, | |
666 | RJ54N1_XY_OUTPUT_SIZE_P_H, output_w, output_h); | |
667 | ||
668 | if (ret < 0) | |
669 | return ret; | |
670 | ||
a6b5f200 | 671 | if (output_w > input_w && output_h > input_h) { |
8f37cf25 GL |
672 | input_w = output_w; |
673 | input_h = output_h; | |
674 | ||
675 | resize = 1024; | |
676 | } else { | |
677 | unsigned int resize_x, resize_y; | |
a6b5f200 GL |
678 | resize_x = (input_w * 1024 + output_w / 2) / output_w; |
679 | resize_y = (input_h * 1024 + output_h / 2) / output_h; | |
680 | ||
681 | /* We want max(resize_x, resize_y), check if it still fits */ | |
682 | if (resize_x > resize_y && | |
683 | (output_h * resize_x + 512) / 1024 > RJ54N1_MAX_HEIGHT) | |
684 | resize = (RJ54N1_MAX_HEIGHT * 1024 + output_h / 2) / | |
685 | output_h; | |
686 | else if (resize_y > resize_x && | |
687 | (output_w * resize_y + 512) / 1024 > RJ54N1_MAX_WIDTH) | |
688 | resize = (RJ54N1_MAX_WIDTH * 1024 + output_w / 2) / | |
689 | output_w; | |
690 | else | |
691 | resize = max(resize_x, resize_y); | |
8f37cf25 GL |
692 | |
693 | /* Prohibited value ranges */ | |
694 | switch (resize) { | |
695 | case 2040 ... 2047: | |
696 | resize = 2039; | |
697 | break; | |
698 | case 4080 ... 4095: | |
699 | resize = 4079; | |
700 | break; | |
701 | case 8160 ... 8191: | |
702 | resize = 8159; | |
703 | break; | |
a6b5f200 | 704 | case 16320 ... 16384: |
8f37cf25 GL |
705 | resize = 16319; |
706 | } | |
8f37cf25 GL |
707 | } |
708 | ||
709 | /* Set scaling */ | |
710 | ret = reg_write(client, RJ54N1_RESIZE_HOLD_L, resize & 0xff); | |
711 | if (!ret) | |
712 | ret = reg_write(client, RJ54N1_RESIZE_HOLD_H, resize >> 8); | |
713 | ||
714 | if (ret < 0) | |
715 | return ret; | |
716 | ||
717 | /* | |
718 | * Configure a skipping bitmask. The sensor will select a skipping value | |
a6b5f200 GL |
719 | * among set bits automatically. This is very unclear in the datasheet |
720 | * too. I was told, in this register one enables all skipping values, | |
721 | * that are required for a specific resize, and the camera selects | |
722 | * automatically, which ones to use. But it is unclear how to identify, | |
723 | * which cropping values are needed. Secondly, why don't we just set all | |
724 | * bits and let the camera choose? Would it increase processing time and | |
725 | * reduce the framerate? Using 0xfffc for INC_USE_SEL doesn't seem to | |
726 | * improve the image quality or stability for larger frames (see comment | |
727 | * above), but I didn't check the framerate. | |
8f37cf25 | 728 | */ |
e26b3144 | 729 | skip = min(resize / 1024, 15U); |
a6b5f200 | 730 | |
8f37cf25 GL |
731 | inc_sel = 1 << skip; |
732 | ||
733 | if (inc_sel <= 2) | |
734 | inc_sel = 0xc; | |
735 | else if (resize & 1023 && skip < 15) | |
736 | inc_sel |= 1 << (skip + 1); | |
737 | ||
738 | ret = reg_write(client, RJ54N1_INC_USE_SEL_L, inc_sel & 0xfc); | |
739 | if (!ret) | |
740 | ret = reg_write(client, RJ54N1_INC_USE_SEL_H, inc_sel >> 8); | |
741 | ||
a6b5f200 GL |
742 | if (!rj54n1->auto_wb) { |
743 | /* Auto white balance window */ | |
744 | wb_left = output_w / 16; | |
745 | wb_right = (3 * output_w / 4 - 3) / 4; | |
746 | wb_top = output_h / 16; | |
747 | wb_bottom = (3 * output_h / 4 - 3) / 4; | |
748 | wb_bit8 = ((wb_left >> 2) & 0x40) | ((wb_top >> 4) & 0x10) | | |
749 | ((wb_right >> 6) & 4) | ((wb_bottom >> 8) & 1); | |
750 | ||
751 | if (!ret) | |
752 | ret = reg_write(client, RJ54N1_BIT8_WB, wb_bit8); | |
753 | if (!ret) | |
754 | ret = reg_write(client, RJ54N1_HCAPS_WB, wb_left); | |
755 | if (!ret) | |
756 | ret = reg_write(client, RJ54N1_VCAPS_WB, wb_top); | |
757 | if (!ret) | |
758 | ret = reg_write(client, RJ54N1_HCAPE_WB, wb_right); | |
759 | if (!ret) | |
760 | ret = reg_write(client, RJ54N1_VCAPE_WB, wb_bottom); | |
761 | } | |
762 | ||
763 | /* Antiflicker */ | |
764 | peak = 12 * RJ54N1_MAX_WIDTH * (1 << 14) * resize / rj54n1->tgclk_mhz / | |
765 | 10000; | |
766 | peak_50 = peak / 6; | |
767 | peak_60 = peak / 5; | |
768 | ||
769 | if (!ret) | |
770 | ret = reg_write(client, RJ54N1_PEAK_H, | |
771 | ((peak_50 >> 4) & 0xf0) | (peak_60 >> 8)); | |
772 | if (!ret) | |
773 | ret = reg_write(client, RJ54N1_PEAK_50, peak_50); | |
774 | if (!ret) | |
775 | ret = reg_write(client, RJ54N1_PEAK_60, peak_60); | |
776 | if (!ret) | |
777 | ret = reg_write(client, RJ54N1_PEAK_DIFF, peak / 150); | |
778 | ||
8f37cf25 GL |
779 | /* Start resizing */ |
780 | if (!ret) | |
781 | ret = reg_write(client, RJ54N1_RESIZE_CONTROL, | |
782 | RESIZE_HOLD_SEL | RESIZE_GO | 1); | |
783 | ||
784 | if (ret < 0) | |
785 | return ret; | |
786 | ||
8f37cf25 GL |
787 | /* Constant taken from manufacturer's example */ |
788 | msleep(230); | |
789 | ||
790 | ret = reg_write(client, RJ54N1_RESIZE_CONTROL, RESIZE_HOLD_SEL | 1); | |
791 | if (ret < 0) | |
792 | return ret; | |
793 | ||
a6b5f200 GL |
794 | *in_w = (output_w * resize + 512) / 1024; |
795 | *in_h = (output_h * resize + 512) / 1024; | |
8f37cf25 GL |
796 | *out_w = output_w; |
797 | *out_h = output_h; | |
798 | ||
e26b3144 | 799 | dev_dbg(&client->dev, "Scaled for %dx%d : %u = %ux%u, skip %u\n", |
a6b5f200 GL |
800 | *in_w, *in_h, resize, output_w, output_h, skip); |
801 | ||
8f37cf25 GL |
802 | return resize; |
803 | } | |
804 | ||
805 | static int rj54n1_set_clock(struct i2c_client *client) | |
806 | { | |
807 | struct rj54n1 *rj54n1 = to_rj54n1(client); | |
808 | int ret; | |
809 | ||
810 | /* Enable external clock */ | |
811 | ret = reg_write(client, RJ54N1_RESET_STANDBY, E_EXCLK | SOFT_STDBY); | |
a6b5f200 | 812 | /* Leave stand-by. Note: use this when implementing suspend / resume */ |
8f37cf25 GL |
813 | if (!ret) |
814 | ret = reg_write(client, RJ54N1_RESET_STANDBY, E_EXCLK); | |
815 | ||
816 | if (!ret) | |
a6b5f200 | 817 | ret = reg_write(client, RJ54N1_PLL_L, PLL_L); |
8f37cf25 | 818 | if (!ret) |
a6b5f200 | 819 | ret = reg_write(client, RJ54N1_PLL_N, PLL_N); |
8f37cf25 GL |
820 | |
821 | /* TGCLK dividers */ | |
822 | if (!ret) | |
823 | ret = reg_write(client, RJ54N1_RATIO_TG, | |
824 | rj54n1->clk_div.ratio_tg); | |
825 | if (!ret) | |
826 | ret = reg_write(client, RJ54N1_RATIO_T, | |
827 | rj54n1->clk_div.ratio_t); | |
828 | if (!ret) | |
829 | ret = reg_write(client, RJ54N1_RATIO_R, | |
830 | rj54n1->clk_div.ratio_r); | |
831 | ||
832 | /* Enable TGCLK & RAMP */ | |
833 | if (!ret) | |
834 | ret = reg_write(client, RJ54N1_RAMP_TGCLK_EN, 3); | |
835 | ||
836 | /* Disable clock output */ | |
837 | if (!ret) | |
838 | ret = reg_write(client, RJ54N1_OCLK_DSP, 0); | |
839 | ||
840 | /* Set divisors */ | |
841 | if (!ret) | |
842 | ret = reg_write(client, RJ54N1_RATIO_OP, | |
843 | rj54n1->clk_div.ratio_op); | |
844 | if (!ret) | |
845 | ret = reg_write(client, RJ54N1_RATIO_O, | |
846 | rj54n1->clk_div.ratio_o); | |
847 | ||
848 | /* Enable OCLK */ | |
849 | if (!ret) | |
850 | ret = reg_write(client, RJ54N1_OCLK_SEL_EN, 1); | |
851 | ||
852 | /* Use PLL for Timing Generator, write 2 to reserved bits */ | |
853 | if (!ret) | |
854 | ret = reg_write(client, RJ54N1_TG_BYPASS, 2); | |
855 | ||
856 | /* Take sensor out of reset */ | |
857 | if (!ret) | |
858 | ret = reg_write(client, RJ54N1_RESET_STANDBY, | |
859 | E_EXCLK | SEN_RSTX); | |
860 | /* Enable PLL */ | |
861 | if (!ret) | |
862 | ret = reg_write(client, RJ54N1_PLL_EN, 1); | |
863 | ||
864 | /* Wait for PLL to stabilise */ | |
865 | msleep(10); | |
866 | ||
867 | /* Enable clock to frequency divider */ | |
868 | if (!ret) | |
869 | ret = reg_write(client, RJ54N1_CLK_RST, 1); | |
870 | ||
871 | if (!ret) | |
872 | ret = reg_read(client, RJ54N1_CLK_RST); | |
873 | if (ret != 1) { | |
874 | dev_err(&client->dev, | |
875 | "Resetting RJ54N1CB0C clock failed: %d!\n", ret); | |
876 | return -EIO; | |
877 | } | |
a6b5f200 | 878 | |
8f37cf25 GL |
879 | /* Start the PLL */ |
880 | ret = reg_set(client, RJ54N1_OCLK_DSP, 1, 1); | |
881 | ||
882 | /* Enable OCLK */ | |
883 | if (!ret) | |
884 | ret = reg_write(client, RJ54N1_OCLK_SEL_EN, 1); | |
885 | ||
886 | return ret; | |
887 | } | |
888 | ||
889 | static int rj54n1_reg_init(struct i2c_client *client) | |
890 | { | |
a6b5f200 | 891 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
8f37cf25 GL |
892 | int ret = rj54n1_set_clock(client); |
893 | ||
894 | if (!ret) | |
895 | ret = reg_write_multiple(client, bank_7, ARRAY_SIZE(bank_7)); | |
896 | if (!ret) | |
897 | ret = reg_write_multiple(client, bank_10, ARRAY_SIZE(bank_10)); | |
898 | ||
899 | /* Set binning divisors */ | |
900 | if (!ret) | |
901 | ret = reg_write(client, RJ54N1_SCALE_1_2_LEV, 3 | (7 << 4)); | |
902 | if (!ret) | |
903 | ret = reg_write(client, RJ54N1_SCALE_4_LEV, 0xf); | |
904 | ||
905 | /* Switch to fixed resize mode */ | |
906 | if (!ret) | |
907 | ret = reg_write(client, RJ54N1_RESIZE_CONTROL, | |
908 | RESIZE_HOLD_SEL | 1); | |
909 | ||
910 | /* Set gain */ | |
911 | if (!ret) | |
912 | ret = reg_write(client, RJ54N1_Y_GAIN, 0x84); | |
913 | ||
a6b5f200 GL |
914 | /* |
915 | * Mirror the image back: default is upside down and left-to-right... | |
916 | * Set manual preview / still shot switching | |
917 | */ | |
8f37cf25 | 918 | if (!ret) |
a6b5f200 | 919 | ret = reg_write(client, RJ54N1_MIRROR_STILL_MODE, 0x27); |
8f37cf25 GL |
920 | |
921 | if (!ret) | |
922 | ret = reg_write_multiple(client, bank_4, ARRAY_SIZE(bank_4)); | |
a6b5f200 GL |
923 | |
924 | /* Auto exposure area */ | |
925 | if (!ret) | |
926 | ret = reg_write(client, RJ54N1_EXPOSURE_CONTROL, 0x80); | |
927 | /* Check current auto WB config */ | |
8f37cf25 | 928 | if (!ret) |
a6b5f200 GL |
929 | ret = reg_read(client, RJ54N1_WB_SEL_WEIGHT_I); |
930 | if (ret >= 0) { | |
931 | rj54n1->auto_wb = ret & 0x80; | |
8f37cf25 | 932 | ret = reg_write_multiple(client, bank_5, ARRAY_SIZE(bank_5)); |
a6b5f200 | 933 | } |
8f37cf25 GL |
934 | if (!ret) |
935 | ret = reg_write_multiple(client, bank_8, ARRAY_SIZE(bank_8)); | |
936 | ||
937 | if (!ret) | |
938 | ret = reg_write(client, RJ54N1_RESET_STANDBY, | |
939 | E_EXCLK | DSP_RSTX | SEN_RSTX); | |
940 | ||
941 | /* Commit init */ | |
942 | if (!ret) | |
943 | ret = rj54n1_commit(client); | |
944 | ||
945 | /* Take DSP, TG, sensor out of reset */ | |
946 | if (!ret) | |
947 | ret = reg_write(client, RJ54N1_RESET_STANDBY, | |
948 | E_EXCLK | DSP_RSTX | TG_RSTX | SEN_RSTX); | |
949 | ||
a6b5f200 | 950 | /* Start register update? Same register as 0x?FE in many bank_* sets */ |
8f37cf25 | 951 | if (!ret) |
a6b5f200 | 952 | ret = reg_write(client, RJ54N1_FWFLG, 2); |
8f37cf25 GL |
953 | |
954 | /* Constant taken from manufacturer's example */ | |
955 | msleep(700); | |
956 | ||
957 | return ret; | |
958 | } | |
959 | ||
760697be GL |
960 | static int rj54n1_try_fmt(struct v4l2_subdev *sd, |
961 | struct v4l2_mbus_framefmt *mf) | |
8f37cf25 | 962 | { |
c4ce6d14 | 963 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
760697be GL |
964 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
965 | const struct rj54n1_datafmt *fmt; | |
966 | int align = mf->code == V4L2_MBUS_FMT_SBGGR10_1X10 || | |
967 | mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE || | |
968 | mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE || | |
969 | mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE || | |
970 | mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE; | |
971 | ||
972 | dev_dbg(&client->dev, "%s: code = %d, width = %u, height = %u\n", | |
973 | __func__, mf->code, mf->width, mf->height); | |
974 | ||
975 | fmt = rj54n1_find_datafmt(mf->code, rj54n1_colour_fmts, | |
976 | ARRAY_SIZE(rj54n1_colour_fmts)); | |
977 | if (!fmt) { | |
978 | fmt = rj54n1->fmt; | |
979 | mf->code = fmt->code; | |
980 | } | |
8f37cf25 | 981 | |
760697be GL |
982 | mf->field = V4L2_FIELD_NONE; |
983 | mf->colorspace = fmt->colorspace; | |
8f37cf25 | 984 | |
760697be GL |
985 | v4l_bound_align_image(&mf->width, 112, RJ54N1_MAX_WIDTH, align, |
986 | &mf->height, 84, RJ54N1_MAX_HEIGHT, align, 0); | |
8f37cf25 GL |
987 | |
988 | return 0; | |
989 | } | |
990 | ||
760697be GL |
991 | static int rj54n1_s_fmt(struct v4l2_subdev *sd, |
992 | struct v4l2_mbus_framefmt *mf) | |
8f37cf25 | 993 | { |
c4ce6d14 | 994 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 | 995 | struct rj54n1 *rj54n1 = to_rj54n1(client); |
760697be | 996 | const struct rj54n1_datafmt *fmt; |
e26b3144 | 997 | int output_w, output_h, max_w, max_h, |
8f37cf25 GL |
998 | input_w = rj54n1->rect.width, input_h = rj54n1->rect.height; |
999 | int ret; | |
1000 | ||
1001 | /* | |
1002 | * The host driver can call us without .try_fmt(), so, we have to take | |
1003 | * care ourseleves | |
1004 | */ | |
a6b5f200 | 1005 | rj54n1_try_fmt(sd, mf); |
8f37cf25 GL |
1006 | |
1007 | /* | |
1008 | * Verify if the sensor has just been powered on. TODO: replace this | |
1009 | * with proper PM, when a suitable API is available. | |
1010 | */ | |
a6b5f200 | 1011 | ret = reg_read(client, RJ54N1_RESET_STANDBY); |
8f37cf25 GL |
1012 | if (ret < 0) |
1013 | return ret; | |
1014 | ||
1015 | if (!(ret & E_EXCLK)) { | |
1016 | ret = rj54n1_reg_init(client); | |
1017 | if (ret < 0) | |
1018 | return ret; | |
1019 | } | |
1020 | ||
a6b5f200 GL |
1021 | dev_dbg(&client->dev, "%s: code = %d, width = %u, height = %u\n", |
1022 | __func__, mf->code, mf->width, mf->height); | |
1023 | ||
8f37cf25 | 1024 | /* RA_SEL_UL is only relevant for raw modes, ignored otherwise. */ |
760697be | 1025 | switch (mf->code) { |
ace6e979 | 1026 | case V4L2_MBUS_FMT_YUYV8_2X8: |
8f37cf25 GL |
1027 | ret = reg_write(client, RJ54N1_OUT_SEL, 0); |
1028 | if (!ret) | |
1029 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); | |
1030 | break; | |
ace6e979 | 1031 | case V4L2_MBUS_FMT_YVYU8_2X8: |
760697be GL |
1032 | ret = reg_write(client, RJ54N1_OUT_SEL, 0); |
1033 | if (!ret) | |
1034 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); | |
1035 | break; | |
1036 | case V4L2_MBUS_FMT_RGB565_2X8_LE: | |
8f37cf25 GL |
1037 | ret = reg_write(client, RJ54N1_OUT_SEL, 0x11); |
1038 | if (!ret) | |
1039 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); | |
1040 | break; | |
760697be GL |
1041 | case V4L2_MBUS_FMT_RGB565_2X8_BE: |
1042 | ret = reg_write(client, RJ54N1_OUT_SEL, 0x11); | |
1043 | if (!ret) | |
1044 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); | |
1045 | break; | |
1046 | case V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE: | |
1047 | ret = reg_write(client, RJ54N1_OUT_SEL, 4); | |
1048 | if (!ret) | |
1049 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); | |
1050 | if (!ret) | |
1051 | ret = reg_write(client, RJ54N1_RA_SEL_UL, 0); | |
1052 | break; | |
1053 | case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE: | |
1054 | ret = reg_write(client, RJ54N1_OUT_SEL, 4); | |
1055 | if (!ret) | |
1056 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); | |
1057 | if (!ret) | |
1058 | ret = reg_write(client, RJ54N1_RA_SEL_UL, 8); | |
1059 | break; | |
1060 | case V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE: | |
1061 | ret = reg_write(client, RJ54N1_OUT_SEL, 4); | |
1062 | if (!ret) | |
1063 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); | |
1064 | if (!ret) | |
1065 | ret = reg_write(client, RJ54N1_RA_SEL_UL, 0); | |
1066 | break; | |
1067 | case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE: | |
1068 | ret = reg_write(client, RJ54N1_OUT_SEL, 4); | |
1069 | if (!ret) | |
1070 | ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); | |
1071 | if (!ret) | |
1072 | ret = reg_write(client, RJ54N1_RA_SEL_UL, 8); | |
1073 | break; | |
1074 | case V4L2_MBUS_FMT_SBGGR10_1X10: | |
1075 | ret = reg_write(client, RJ54N1_OUT_SEL, 5); | |
1076 | break; | |
8f37cf25 GL |
1077 | default: |
1078 | ret = -EINVAL; | |
1079 | } | |
1080 | ||
760697be GL |
1081 | /* Special case: a raw mode with 10 bits of data per clock tick */ |
1082 | if (!ret) | |
1083 | ret = reg_set(client, RJ54N1_OCLK_SEL_EN, | |
1084 | (mf->code == V4L2_MBUS_FMT_SBGGR10_1X10) << 1, 2); | |
1085 | ||
8f37cf25 GL |
1086 | if (ret < 0) |
1087 | return ret; | |
1088 | ||
760697be GL |
1089 | /* Supported scales 1:1 >= scale > 1:16 */ |
1090 | max_w = mf->width * (16 * 1024 - 1) / 1024; | |
1091 | if (input_w > max_w) | |
1092 | input_w = max_w; | |
1093 | max_h = mf->height * (16 * 1024 - 1) / 1024; | |
1094 | if (input_h > max_h) | |
1095 | input_h = max_h; | |
8f37cf25 | 1096 | |
760697be GL |
1097 | output_w = mf->width; |
1098 | output_h = mf->height; | |
8f37cf25 GL |
1099 | |
1100 | ret = rj54n1_sensor_scale(sd, &input_w, &input_h, &output_w, &output_h); | |
1101 | if (ret < 0) | |
1102 | return ret; | |
1103 | ||
760697be GL |
1104 | fmt = rj54n1_find_datafmt(mf->code, rj54n1_colour_fmts, |
1105 | ARRAY_SIZE(rj54n1_colour_fmts)); | |
1106 | ||
1107 | rj54n1->fmt = fmt; | |
8f37cf25 GL |
1108 | rj54n1->resize = ret; |
1109 | rj54n1->rect.width = input_w; | |
1110 | rj54n1->rect.height = input_h; | |
1111 | rj54n1->width = output_w; | |
1112 | rj54n1->height = output_h; | |
1113 | ||
760697be GL |
1114 | mf->width = output_w; |
1115 | mf->height = output_h; | |
1116 | mf->field = V4L2_FIELD_NONE; | |
1117 | mf->colorspace = fmt->colorspace; | |
8f37cf25 | 1118 | |
760697be | 1119 | return 0; |
8f37cf25 GL |
1120 | } |
1121 | ||
1122 | static int rj54n1_g_chip_ident(struct v4l2_subdev *sd, | |
1123 | struct v4l2_dbg_chip_ident *id) | |
1124 | { | |
c4ce6d14 | 1125 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 GL |
1126 | |
1127 | if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR) | |
1128 | return -EINVAL; | |
1129 | ||
1130 | if (id->match.addr != client->addr) | |
1131 | return -ENODEV; | |
1132 | ||
1133 | id->ident = V4L2_IDENT_RJ54N1CB0C; | |
1134 | id->revision = 0; | |
1135 | ||
1136 | return 0; | |
1137 | } | |
1138 | ||
1139 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1140 | static int rj54n1_g_register(struct v4l2_subdev *sd, | |
1141 | struct v4l2_dbg_register *reg) | |
1142 | { | |
c4ce6d14 | 1143 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 GL |
1144 | |
1145 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || | |
1146 | reg->reg < 0x400 || reg->reg > 0x1fff) | |
1147 | /* Registers > 0x0800 are only available from Sharp support */ | |
1148 | return -EINVAL; | |
1149 | ||
1150 | if (reg->match.addr != client->addr) | |
1151 | return -ENODEV; | |
1152 | ||
1153 | reg->size = 1; | |
1154 | reg->val = reg_read(client, reg->reg); | |
1155 | ||
1156 | if (reg->val > 0xff) | |
1157 | return -EIO; | |
1158 | ||
1159 | return 0; | |
1160 | } | |
1161 | ||
1162 | static int rj54n1_s_register(struct v4l2_subdev *sd, | |
1163 | struct v4l2_dbg_register *reg) | |
1164 | { | |
c4ce6d14 | 1165 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 GL |
1166 | |
1167 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || | |
1168 | reg->reg < 0x400 || reg->reg > 0x1fff) | |
1169 | /* Registers >= 0x0800 are only available from Sharp support */ | |
1170 | return -EINVAL; | |
1171 | ||
1172 | if (reg->match.addr != client->addr) | |
1173 | return -ENODEV; | |
1174 | ||
1175 | if (reg_write(client, reg->reg, reg->val) < 0) | |
1176 | return -EIO; | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | #endif | |
1181 | ||
25e965ad | 1182 | static int rj54n1_s_ctrl(struct v4l2_ctrl *ctrl) |
8f37cf25 | 1183 | { |
25e965ad HV |
1184 | struct rj54n1 *rj54n1 = container_of(ctrl->handler, struct rj54n1, hdl); |
1185 | struct v4l2_subdev *sd = &rj54n1->subdev; | |
c4ce6d14 | 1186 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
8f37cf25 GL |
1187 | int data; |
1188 | ||
1189 | switch (ctrl->id) { | |
1190 | case V4L2_CID_VFLIP: | |
25e965ad | 1191 | if (ctrl->val) |
8f37cf25 GL |
1192 | data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 1); |
1193 | else | |
1194 | data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 1, 1); | |
1195 | if (data < 0) | |
1196 | return -EIO; | |
25e965ad | 1197 | return 0; |
8f37cf25 | 1198 | case V4L2_CID_HFLIP: |
25e965ad | 1199 | if (ctrl->val) |
8f37cf25 GL |
1200 | data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 2); |
1201 | else | |
1202 | data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 2, 2); | |
1203 | if (data < 0) | |
1204 | return -EIO; | |
25e965ad | 1205 | return 0; |
8f37cf25 | 1206 | case V4L2_CID_GAIN: |
25e965ad | 1207 | if (reg_write(client, RJ54N1_Y_GAIN, ctrl->val * 2) < 0) |
8f37cf25 | 1208 | return -EIO; |
25e965ad | 1209 | return 0; |
a6b5f200 GL |
1210 | case V4L2_CID_AUTO_WHITE_BALANCE: |
1211 | /* Auto WB area - whole image */ | |
25e965ad | 1212 | if (reg_set(client, RJ54N1_WB_SEL_WEIGHT_I, ctrl->val << 7, |
a6b5f200 GL |
1213 | 0x80) < 0) |
1214 | return -EIO; | |
25e965ad HV |
1215 | rj54n1->auto_wb = ctrl->val; |
1216 | return 0; | |
8f37cf25 GL |
1217 | } |
1218 | ||
25e965ad | 1219 | return -EINVAL; |
8f37cf25 GL |
1220 | } |
1221 | ||
25e965ad HV |
1222 | static const struct v4l2_ctrl_ops rj54n1_ctrl_ops = { |
1223 | .s_ctrl = rj54n1_s_ctrl, | |
1224 | }; | |
1225 | ||
8f37cf25 | 1226 | static struct v4l2_subdev_core_ops rj54n1_subdev_core_ops = { |
8f37cf25 GL |
1227 | .g_chip_ident = rj54n1_g_chip_ident, |
1228 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1229 | .g_register = rj54n1_g_register, | |
1230 | .s_register = rj54n1_s_register, | |
1231 | #endif | |
1232 | }; | |
1233 | ||
bc1a1f3a GL |
1234 | static int rj54n1_g_mbus_config(struct v4l2_subdev *sd, |
1235 | struct v4l2_mbus_config *cfg) | |
1236 | { | |
1237 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
14178aa5 | 1238 | struct soc_camera_link *icl = soc_camera_i2c_to_link(client); |
bc1a1f3a GL |
1239 | |
1240 | cfg->flags = | |
1241 | V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | | |
1242 | V4L2_MBUS_MASTER | V4L2_MBUS_DATA_ACTIVE_HIGH | | |
1243 | V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH; | |
1244 | cfg->type = V4L2_MBUS_PARALLEL; | |
1245 | cfg->flags = soc_camera_apply_board_flags(icl, cfg); | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | static int rj54n1_s_mbus_config(struct v4l2_subdev *sd, | |
1251 | const struct v4l2_mbus_config *cfg) | |
1252 | { | |
1253 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
14178aa5 | 1254 | struct soc_camera_link *icl = soc_camera_i2c_to_link(client); |
bc1a1f3a GL |
1255 | |
1256 | /* Figures 2.5-1 to 2.5-3 - default falling pixclk edge */ | |
1257 | if (soc_camera_apply_board_flags(icl, cfg) & | |
1258 | V4L2_MBUS_PCLK_SAMPLE_RISING) | |
1259 | return reg_write(client, RJ54N1_OUT_SIGPO, 1 << 4); | |
1260 | else | |
1261 | return reg_write(client, RJ54N1_OUT_SIGPO, 0); | |
1262 | } | |
1263 | ||
8f37cf25 GL |
1264 | static struct v4l2_subdev_video_ops rj54n1_subdev_video_ops = { |
1265 | .s_stream = rj54n1_s_stream, | |
760697be GL |
1266 | .s_mbus_fmt = rj54n1_s_fmt, |
1267 | .g_mbus_fmt = rj54n1_g_fmt, | |
1268 | .try_mbus_fmt = rj54n1_try_fmt, | |
1269 | .enum_mbus_fmt = rj54n1_enum_fmt, | |
8f37cf25 | 1270 | .g_crop = rj54n1_g_crop, |
a6b5f200 | 1271 | .s_crop = rj54n1_s_crop, |
8f37cf25 | 1272 | .cropcap = rj54n1_cropcap, |
bc1a1f3a GL |
1273 | .g_mbus_config = rj54n1_g_mbus_config, |
1274 | .s_mbus_config = rj54n1_s_mbus_config, | |
8f37cf25 GL |
1275 | }; |
1276 | ||
1277 | static struct v4l2_subdev_ops rj54n1_subdev_ops = { | |
1278 | .core = &rj54n1_subdev_core_ops, | |
1279 | .video = &rj54n1_subdev_video_ops, | |
1280 | }; | |
1281 | ||
8f37cf25 GL |
1282 | /* |
1283 | * Interface active, can use i2c. If it fails, it can indeed mean, that | |
1284 | * this wasn't our capture interface, so, we wait for the right one | |
1285 | */ | |
14178aa5 | 1286 | static int rj54n1_video_probe(struct i2c_client *client, |
a6b5f200 | 1287 | struct rj54n1_pdata *priv) |
8f37cf25 GL |
1288 | { |
1289 | int data1, data2; | |
1290 | int ret; | |
1291 | ||
8f37cf25 GL |
1292 | /* Read out the chip version register */ |
1293 | data1 = reg_read(client, RJ54N1_DEV_CODE); | |
1294 | data2 = reg_read(client, RJ54N1_DEV_CODE2); | |
1295 | ||
1296 | if (data1 != 0x51 || data2 != 0x10) { | |
1297 | ret = -ENODEV; | |
1298 | dev_info(&client->dev, "No RJ54N1CB0C found, read 0x%x:0x%x\n", | |
1299 | data1, data2); | |
1300 | goto ei2c; | |
1301 | } | |
1302 | ||
a6b5f200 GL |
1303 | /* Configure IOCTL polarity from the platform data: 0 or 1 << 7. */ |
1304 | ret = reg_write(client, RJ54N1_IOC, priv->ioctl_high << 7); | |
8f37cf25 GL |
1305 | if (ret < 0) |
1306 | goto ei2c; | |
1307 | ||
1308 | dev_info(&client->dev, "Detected a RJ54N1CB0C chip ID 0x%x:0x%x\n", | |
1309 | data1, data2); | |
1310 | ||
1311 | ei2c: | |
1312 | return ret; | |
1313 | } | |
1314 | ||
1315 | static int rj54n1_probe(struct i2c_client *client, | |
1316 | const struct i2c_device_id *did) | |
1317 | { | |
1318 | struct rj54n1 *rj54n1; | |
14178aa5 | 1319 | struct soc_camera_link *icl = soc_camera_i2c_to_link(client); |
8f37cf25 | 1320 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); |
a6b5f200 | 1321 | struct rj54n1_pdata *rj54n1_priv; |
8f37cf25 GL |
1322 | int ret; |
1323 | ||
a6b5f200 | 1324 | if (!icl || !icl->priv) { |
8f37cf25 GL |
1325 | dev_err(&client->dev, "RJ54N1CB0C: missing platform data!\n"); |
1326 | return -EINVAL; | |
1327 | } | |
1328 | ||
a6b5f200 GL |
1329 | rj54n1_priv = icl->priv; |
1330 | ||
8f37cf25 GL |
1331 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1332 | dev_warn(&adapter->dev, | |
1333 | "I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE\n"); | |
1334 | return -EIO; | |
1335 | } | |
1336 | ||
1337 | rj54n1 = kzalloc(sizeof(struct rj54n1), GFP_KERNEL); | |
1338 | if (!rj54n1) | |
1339 | return -ENOMEM; | |
1340 | ||
1341 | v4l2_i2c_subdev_init(&rj54n1->subdev, client, &rj54n1_subdev_ops); | |
25e965ad HV |
1342 | v4l2_ctrl_handler_init(&rj54n1->hdl, 4); |
1343 | v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, | |
1344 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
1345 | v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, | |
1346 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
1347 | v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, | |
1348 | V4L2_CID_GAIN, 0, 127, 1, 66); | |
1349 | v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, | |
1350 | V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); | |
1351 | rj54n1->subdev.ctrl_handler = &rj54n1->hdl; | |
1352 | if (rj54n1->hdl.error) { | |
1353 | int err = rj54n1->hdl.error; | |
8f37cf25 | 1354 | |
25e965ad HV |
1355 | kfree(rj54n1); |
1356 | return err; | |
1357 | } | |
8f37cf25 GL |
1358 | |
1359 | rj54n1->clk_div = clk_div; | |
1360 | rj54n1->rect.left = RJ54N1_COLUMN_SKIP; | |
1361 | rj54n1->rect.top = RJ54N1_ROW_SKIP; | |
1362 | rj54n1->rect.width = RJ54N1_MAX_WIDTH; | |
1363 | rj54n1->rect.height = RJ54N1_MAX_HEIGHT; | |
1364 | rj54n1->width = RJ54N1_MAX_WIDTH; | |
1365 | rj54n1->height = RJ54N1_MAX_HEIGHT; | |
760697be | 1366 | rj54n1->fmt = &rj54n1_colour_fmts[0]; |
8f37cf25 | 1367 | rj54n1->resize = 1024; |
a6b5f200 GL |
1368 | rj54n1->tgclk_mhz = (rj54n1_priv->mclk_freq / PLL_L * PLL_N) / |
1369 | (clk_div.ratio_tg + 1) / (clk_div.ratio_t + 1); | |
8f37cf25 | 1370 | |
14178aa5 | 1371 | ret = rj54n1_video_probe(client, rj54n1_priv); |
8f37cf25 | 1372 | if (ret < 0) { |
25e965ad | 1373 | v4l2_ctrl_handler_free(&rj54n1->hdl); |
8f37cf25 GL |
1374 | kfree(rj54n1); |
1375 | return ret; | |
1376 | } | |
25e965ad | 1377 | return v4l2_ctrl_handler_setup(&rj54n1->hdl); |
8f37cf25 GL |
1378 | } |
1379 | ||
1380 | static int rj54n1_remove(struct i2c_client *client) | |
1381 | { | |
1382 | struct rj54n1 *rj54n1 = to_rj54n1(client); | |
14178aa5 | 1383 | struct soc_camera_link *icl = soc_camera_i2c_to_link(client); |
8f37cf25 | 1384 | |
25e965ad | 1385 | v4l2_device_unregister_subdev(&rj54n1->subdev); |
8f37cf25 GL |
1386 | if (icl->free_bus) |
1387 | icl->free_bus(icl); | |
25e965ad | 1388 | v4l2_ctrl_handler_free(&rj54n1->hdl); |
8f37cf25 GL |
1389 | kfree(rj54n1); |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | static const struct i2c_device_id rj54n1_id[] = { | |
1395 | { "rj54n1cb0c", 0 }, | |
1396 | { } | |
1397 | }; | |
1398 | MODULE_DEVICE_TABLE(i2c, rj54n1_id); | |
1399 | ||
1400 | static struct i2c_driver rj54n1_i2c_driver = { | |
1401 | .driver = { | |
1402 | .name = "rj54n1cb0c", | |
1403 | }, | |
1404 | .probe = rj54n1_probe, | |
1405 | .remove = rj54n1_remove, | |
1406 | .id_table = rj54n1_id, | |
1407 | }; | |
1408 | ||
1409 | static int __init rj54n1_mod_init(void) | |
1410 | { | |
1411 | return i2c_add_driver(&rj54n1_i2c_driver); | |
1412 | } | |
1413 | ||
1414 | static void __exit rj54n1_mod_exit(void) | |
1415 | { | |
1416 | i2c_del_driver(&rj54n1_i2c_driver); | |
1417 | } | |
1418 | ||
1419 | module_init(rj54n1_mod_init); | |
1420 | module_exit(rj54n1_mod_exit); | |
1421 | ||
1422 | MODULE_DESCRIPTION("Sharp RJ54N1CB0C Camera driver"); | |
1423 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); | |
1424 | MODULE_LICENSE("GPL v2"); |