Commit | Line | Data |
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f877ed97 SJ |
1 | /* |
2 | * vs6624.c ST VS6624 CMOS image sensor driver | |
3 | * | |
4 | * Copyright (c) 2011 Analog Devices Inc. | |
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 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | #include <linux/delay.h> | |
21 | #include <linux/errno.h> | |
22 | #include <linux/gpio.h> | |
23 | #include <linux/i2c.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/types.h> | |
28 | #include <linux/videodev2.h> | |
29 | ||
30 | #include <media/v4l2-chip-ident.h> | |
31 | #include <media/v4l2-ctrls.h> | |
32 | #include <media/v4l2-device.h> | |
33 | #include <media/v4l2-mediabus.h> | |
34 | ||
35 | #include "vs6624_regs.h" | |
36 | ||
37 | #define VGA_WIDTH 640 | |
38 | #define VGA_HEIGHT 480 | |
39 | #define QVGA_WIDTH 320 | |
40 | #define QVGA_HEIGHT 240 | |
41 | #define QQVGA_WIDTH 160 | |
42 | #define QQVGA_HEIGHT 120 | |
43 | #define CIF_WIDTH 352 | |
44 | #define CIF_HEIGHT 288 | |
45 | #define QCIF_WIDTH 176 | |
46 | #define QCIF_HEIGHT 144 | |
47 | #define QQCIF_WIDTH 88 | |
48 | #define QQCIF_HEIGHT 72 | |
49 | ||
50 | #define MAX_FRAME_RATE 30 | |
51 | ||
52 | struct vs6624 { | |
53 | struct v4l2_subdev sd; | |
54 | struct v4l2_ctrl_handler hdl; | |
55 | struct v4l2_fract frame_rate; | |
56 | struct v4l2_mbus_framefmt fmt; | |
57 | unsigned ce_pin; | |
58 | }; | |
59 | ||
60 | static const struct vs6624_format { | |
61 | enum v4l2_mbus_pixelcode mbus_code; | |
62 | enum v4l2_colorspace colorspace; | |
63 | } vs6624_formats[] = { | |
64 | { | |
65 | .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8, | |
66 | .colorspace = V4L2_COLORSPACE_JPEG, | |
67 | }, | |
68 | { | |
69 | .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, | |
70 | .colorspace = V4L2_COLORSPACE_JPEG, | |
71 | }, | |
72 | { | |
73 | .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_LE, | |
74 | .colorspace = V4L2_COLORSPACE_SRGB, | |
75 | }, | |
76 | }; | |
77 | ||
78 | static struct v4l2_mbus_framefmt vs6624_default_fmt = { | |
79 | .width = VGA_WIDTH, | |
80 | .height = VGA_HEIGHT, | |
81 | .code = V4L2_MBUS_FMT_UYVY8_2X8, | |
82 | .field = V4L2_FIELD_NONE, | |
83 | .colorspace = V4L2_COLORSPACE_JPEG, | |
84 | }; | |
85 | ||
86 | static const u16 vs6624_p1[] = { | |
87 | 0x8104, 0x03, | |
88 | 0x8105, 0x01, | |
89 | 0xc900, 0x03, | |
90 | 0xc904, 0x47, | |
91 | 0xc905, 0x10, | |
92 | 0xc906, 0x80, | |
93 | 0xc907, 0x3a, | |
94 | 0x903a, 0x02, | |
95 | 0x903b, 0x47, | |
96 | 0x903c, 0x15, | |
97 | 0xc908, 0x31, | |
98 | 0xc909, 0xdc, | |
99 | 0xc90a, 0x80, | |
100 | 0xc90b, 0x44, | |
101 | 0x9044, 0x02, | |
102 | 0x9045, 0x31, | |
103 | 0x9046, 0xe2, | |
104 | 0xc90c, 0x07, | |
105 | 0xc90d, 0xe0, | |
106 | 0xc90e, 0x80, | |
107 | 0xc90f, 0x47, | |
108 | 0x9047, 0x90, | |
109 | 0x9048, 0x83, | |
110 | 0x9049, 0x81, | |
111 | 0x904a, 0xe0, | |
112 | 0x904b, 0x60, | |
113 | 0x904c, 0x08, | |
114 | 0x904d, 0x90, | |
115 | 0x904e, 0xc0, | |
116 | 0x904f, 0x43, | |
117 | 0x9050, 0x74, | |
118 | 0x9051, 0x01, | |
119 | 0x9052, 0xf0, | |
120 | 0x9053, 0x80, | |
121 | 0x9054, 0x05, | |
122 | 0x9055, 0xE4, | |
123 | 0x9056, 0x90, | |
124 | 0x9057, 0xc0, | |
125 | 0x9058, 0x43, | |
126 | 0x9059, 0xf0, | |
127 | 0x905a, 0x02, | |
128 | 0x905b, 0x07, | |
129 | 0x905c, 0xec, | |
130 | 0xc910, 0x5d, | |
131 | 0xc911, 0xca, | |
132 | 0xc912, 0x80, | |
133 | 0xc913, 0x5d, | |
134 | 0x905d, 0xa3, | |
135 | 0x905e, 0x04, | |
136 | 0x905f, 0xf0, | |
137 | 0x9060, 0xa3, | |
138 | 0x9061, 0x04, | |
139 | 0x9062, 0xf0, | |
140 | 0x9063, 0x22, | |
141 | 0xc914, 0x72, | |
142 | 0xc915, 0x92, | |
143 | 0xc916, 0x80, | |
144 | 0xc917, 0x64, | |
145 | 0x9064, 0x74, | |
146 | 0x9065, 0x01, | |
147 | 0x9066, 0x02, | |
148 | 0x9067, 0x72, | |
149 | 0x9068, 0x95, | |
150 | 0xc918, 0x47, | |
151 | 0xc919, 0xf2, | |
152 | 0xc91a, 0x81, | |
153 | 0xc91b, 0x69, | |
154 | 0x9169, 0x74, | |
155 | 0x916a, 0x02, | |
156 | 0x916b, 0xf0, | |
157 | 0x916c, 0xec, | |
158 | 0x916d, 0xb4, | |
159 | 0x916e, 0x10, | |
160 | 0x916f, 0x0a, | |
161 | 0x9170, 0x90, | |
162 | 0x9171, 0x80, | |
163 | 0x9172, 0x16, | |
164 | 0x9173, 0xe0, | |
165 | 0x9174, 0x70, | |
166 | 0x9175, 0x04, | |
167 | 0x9176, 0x90, | |
168 | 0x9177, 0xd3, | |
169 | 0x9178, 0xc4, | |
170 | 0x9179, 0xf0, | |
171 | 0x917a, 0x22, | |
172 | 0xc91c, 0x0a, | |
173 | 0xc91d, 0xbe, | |
174 | 0xc91e, 0x80, | |
175 | 0xc91f, 0x73, | |
176 | 0x9073, 0xfc, | |
177 | 0x9074, 0xa3, | |
178 | 0x9075, 0xe0, | |
179 | 0x9076, 0xf5, | |
180 | 0x9077, 0x82, | |
181 | 0x9078, 0x8c, | |
182 | 0x9079, 0x83, | |
183 | 0x907a, 0xa3, | |
184 | 0x907b, 0xa3, | |
185 | 0x907c, 0xe0, | |
186 | 0x907d, 0xfc, | |
187 | 0x907e, 0xa3, | |
188 | 0x907f, 0xe0, | |
189 | 0x9080, 0xc3, | |
190 | 0x9081, 0x9f, | |
191 | 0x9082, 0xff, | |
192 | 0x9083, 0xec, | |
193 | 0x9084, 0x9e, | |
194 | 0x9085, 0xfe, | |
195 | 0x9086, 0x02, | |
196 | 0x9087, 0x0a, | |
197 | 0x9088, 0xea, | |
198 | 0xc920, 0x47, | |
199 | 0xc921, 0x38, | |
200 | 0xc922, 0x80, | |
201 | 0xc923, 0x89, | |
202 | 0x9089, 0xec, | |
203 | 0x908a, 0xd3, | |
204 | 0x908b, 0x94, | |
205 | 0x908c, 0x20, | |
206 | 0x908d, 0x40, | |
207 | 0x908e, 0x01, | |
208 | 0x908f, 0x1c, | |
209 | 0x9090, 0x90, | |
210 | 0x9091, 0xd3, | |
211 | 0x9092, 0xd4, | |
212 | 0x9093, 0xec, | |
213 | 0x9094, 0xf0, | |
214 | 0x9095, 0x02, | |
215 | 0x9096, 0x47, | |
216 | 0x9097, 0x3d, | |
217 | 0xc924, 0x45, | |
218 | 0xc925, 0xca, | |
219 | 0xc926, 0x80, | |
220 | 0xc927, 0x98, | |
221 | 0x9098, 0x12, | |
222 | 0x9099, 0x77, | |
223 | 0x909a, 0xd6, | |
224 | 0x909b, 0x02, | |
225 | 0x909c, 0x45, | |
226 | 0x909d, 0xcd, | |
227 | 0xc928, 0x20, | |
228 | 0xc929, 0xd5, | |
229 | 0xc92a, 0x80, | |
230 | 0xc92b, 0x9e, | |
231 | 0x909e, 0x90, | |
232 | 0x909f, 0x82, | |
233 | 0x90a0, 0x18, | |
234 | 0x90a1, 0xe0, | |
235 | 0x90a2, 0xb4, | |
236 | 0x90a3, 0x03, | |
237 | 0x90a4, 0x0e, | |
238 | 0x90a5, 0x90, | |
239 | 0x90a6, 0x83, | |
240 | 0x90a7, 0xbf, | |
241 | 0x90a8, 0xe0, | |
242 | 0x90a9, 0x60, | |
243 | 0x90aa, 0x08, | |
244 | 0x90ab, 0x90, | |
245 | 0x90ac, 0x81, | |
246 | 0x90ad, 0xfc, | |
247 | 0x90ae, 0xe0, | |
248 | 0x90af, 0xff, | |
249 | 0x90b0, 0xc3, | |
250 | 0x90b1, 0x13, | |
251 | 0x90b2, 0xf0, | |
252 | 0x90b3, 0x90, | |
253 | 0x90b4, 0x81, | |
254 | 0x90b5, 0xfc, | |
255 | 0x90b6, 0xe0, | |
256 | 0x90b7, 0xff, | |
257 | 0x90b8, 0x02, | |
258 | 0x90b9, 0x20, | |
259 | 0x90ba, 0xda, | |
260 | 0xc92c, 0x70, | |
261 | 0xc92d, 0xbc, | |
262 | 0xc92e, 0x80, | |
263 | 0xc92f, 0xbb, | |
264 | 0x90bb, 0x90, | |
265 | 0x90bc, 0x82, | |
266 | 0x90bd, 0x18, | |
267 | 0x90be, 0xe0, | |
268 | 0x90bf, 0xb4, | |
269 | 0x90c0, 0x03, | |
270 | 0x90c1, 0x06, | |
271 | 0x90c2, 0x90, | |
272 | 0x90c3, 0xc1, | |
273 | 0x90c4, 0x06, | |
274 | 0x90c5, 0x74, | |
275 | 0x90c6, 0x05, | |
276 | 0x90c7, 0xf0, | |
277 | 0x90c8, 0x90, | |
278 | 0x90c9, 0xd3, | |
279 | 0x90ca, 0xa0, | |
280 | 0x90cb, 0x02, | |
281 | 0x90cc, 0x70, | |
282 | 0x90cd, 0xbf, | |
283 | 0xc930, 0x72, | |
284 | 0xc931, 0x21, | |
285 | 0xc932, 0x81, | |
286 | 0xc933, 0x3b, | |
287 | 0x913b, 0x7d, | |
288 | 0x913c, 0x02, | |
289 | 0x913d, 0x7f, | |
290 | 0x913e, 0x7b, | |
291 | 0x913f, 0x02, | |
292 | 0x9140, 0x72, | |
293 | 0x9141, 0x25, | |
294 | 0xc934, 0x28, | |
295 | 0xc935, 0xae, | |
296 | 0xc936, 0x80, | |
297 | 0xc937, 0xd2, | |
298 | 0x90d2, 0xf0, | |
299 | 0x90d3, 0x90, | |
300 | 0x90d4, 0xd2, | |
301 | 0x90d5, 0x0a, | |
302 | 0x90d6, 0x02, | |
303 | 0x90d7, 0x28, | |
304 | 0x90d8, 0xb4, | |
305 | 0xc938, 0x28, | |
306 | 0xc939, 0xb1, | |
307 | 0xc93a, 0x80, | |
308 | 0xc93b, 0xd9, | |
309 | 0x90d9, 0x90, | |
310 | 0x90da, 0x83, | |
311 | 0x90db, 0xba, | |
312 | 0x90dc, 0xe0, | |
313 | 0x90dd, 0xff, | |
314 | 0x90de, 0x90, | |
315 | 0x90df, 0xd2, | |
316 | 0x90e0, 0x08, | |
317 | 0x90e1, 0xe0, | |
318 | 0x90e2, 0xe4, | |
319 | 0x90e3, 0xef, | |
320 | 0x90e4, 0xf0, | |
321 | 0x90e5, 0xa3, | |
322 | 0x90e6, 0xe0, | |
323 | 0x90e7, 0x74, | |
324 | 0x90e8, 0xff, | |
325 | 0x90e9, 0xf0, | |
326 | 0x90ea, 0x90, | |
327 | 0x90eb, 0xd2, | |
328 | 0x90ec, 0x0a, | |
329 | 0x90ed, 0x02, | |
330 | 0x90ee, 0x28, | |
331 | 0x90ef, 0xb4, | |
332 | 0xc93c, 0x29, | |
333 | 0xc93d, 0x79, | |
334 | 0xc93e, 0x80, | |
335 | 0xc93f, 0xf0, | |
336 | 0x90f0, 0xf0, | |
337 | 0x90f1, 0x90, | |
338 | 0x90f2, 0xd2, | |
339 | 0x90f3, 0x0e, | |
340 | 0x90f4, 0x02, | |
341 | 0x90f5, 0x29, | |
342 | 0x90f6, 0x7f, | |
343 | 0xc940, 0x29, | |
344 | 0xc941, 0x7c, | |
345 | 0xc942, 0x80, | |
346 | 0xc943, 0xf7, | |
347 | 0x90f7, 0x90, | |
348 | 0x90f8, 0x83, | |
349 | 0x90f9, 0xba, | |
350 | 0x90fa, 0xe0, | |
351 | 0x90fb, 0xff, | |
352 | 0x90fc, 0x90, | |
353 | 0x90fd, 0xd2, | |
354 | 0x90fe, 0x0c, | |
355 | 0x90ff, 0xe0, | |
356 | 0x9100, 0xe4, | |
357 | 0x9101, 0xef, | |
358 | 0x9102, 0xf0, | |
359 | 0x9103, 0xa3, | |
360 | 0x9104, 0xe0, | |
361 | 0x9105, 0x74, | |
362 | 0x9106, 0xff, | |
363 | 0x9107, 0xf0, | |
364 | 0x9108, 0x90, | |
365 | 0x9109, 0xd2, | |
366 | 0x910a, 0x0e, | |
367 | 0x910b, 0x02, | |
368 | 0x910c, 0x29, | |
369 | 0x910d, 0x7f, | |
370 | 0xc944, 0x2a, | |
371 | 0xc945, 0x42, | |
372 | 0xc946, 0x81, | |
373 | 0xc947, 0x0e, | |
374 | 0x910e, 0xf0, | |
375 | 0x910f, 0x90, | |
376 | 0x9110, 0xd2, | |
377 | 0x9111, 0x12, | |
378 | 0x9112, 0x02, | |
379 | 0x9113, 0x2a, | |
380 | 0x9114, 0x48, | |
381 | 0xc948, 0x2a, | |
382 | 0xc949, 0x45, | |
383 | 0xc94a, 0x81, | |
384 | 0xc94b, 0x15, | |
385 | 0x9115, 0x90, | |
386 | 0x9116, 0x83, | |
387 | 0x9117, 0xba, | |
388 | 0x9118, 0xe0, | |
389 | 0x9119, 0xff, | |
390 | 0x911a, 0x90, | |
391 | 0x911b, 0xd2, | |
392 | 0x911c, 0x10, | |
393 | 0x911d, 0xe0, | |
394 | 0x911e, 0xe4, | |
395 | 0x911f, 0xef, | |
396 | 0x9120, 0xf0, | |
397 | 0x9121, 0xa3, | |
398 | 0x9122, 0xe0, | |
399 | 0x9123, 0x74, | |
400 | 0x9124, 0xff, | |
401 | 0x9125, 0xf0, | |
402 | 0x9126, 0x90, | |
403 | 0x9127, 0xd2, | |
404 | 0x9128, 0x12, | |
405 | 0x9129, 0x02, | |
406 | 0x912a, 0x2a, | |
407 | 0x912b, 0x48, | |
408 | 0xc900, 0x01, | |
409 | 0x0000, 0x00, | |
410 | }; | |
411 | ||
412 | static const u16 vs6624_p2[] = { | |
413 | 0x806f, 0x01, | |
414 | 0x058c, 0x01, | |
415 | 0x0000, 0x00, | |
416 | }; | |
417 | ||
418 | static const u16 vs6624_run_setup[] = { | |
419 | 0x1d18, 0x00, /* Enableconstrainedwhitebalance */ | |
420 | VS6624_PEAK_MIN_OUT_G_MSB, 0x3c, /* Damper PeakGain Output MSB */ | |
421 | VS6624_PEAK_MIN_OUT_G_LSB, 0x66, /* Damper PeakGain Output LSB */ | |
422 | VS6624_CM_LOW_THR_MSB, 0x65, /* Damper Low MSB */ | |
423 | VS6624_CM_LOW_THR_LSB, 0xd1, /* Damper Low LSB */ | |
424 | VS6624_CM_HIGH_THR_MSB, 0x66, /* Damper High MSB */ | |
425 | VS6624_CM_HIGH_THR_LSB, 0x62, /* Damper High LSB */ | |
426 | VS6624_CM_MIN_OUT_MSB, 0x00, /* Damper Min output MSB */ | |
427 | VS6624_CM_MIN_OUT_LSB, 0x00, /* Damper Min output LSB */ | |
428 | VS6624_NORA_DISABLE, 0x00, /* Nora fDisable */ | |
429 | VS6624_NORA_USAGE, 0x04, /* Nora usage */ | |
430 | VS6624_NORA_LOW_THR_MSB, 0x63, /* Damper Low MSB Changed 0x63 to 0x65 */ | |
431 | VS6624_NORA_LOW_THR_LSB, 0xd1, /* Damper Low LSB */ | |
432 | VS6624_NORA_HIGH_THR_MSB, 0x68, /* Damper High MSB */ | |
433 | VS6624_NORA_HIGH_THR_LSB, 0xdd, /* Damper High LSB */ | |
434 | VS6624_NORA_MIN_OUT_MSB, 0x3a, /* Damper Min output MSB */ | |
435 | VS6624_NORA_MIN_OUT_LSB, 0x00, /* Damper Min output LSB */ | |
436 | VS6624_F2B_DISABLE, 0x00, /* Disable */ | |
437 | 0x1d8a, 0x30, /* MAXWeightHigh */ | |
438 | 0x1d91, 0x62, /* fpDamperLowThresholdHigh MSB */ | |
439 | 0x1d92, 0x4a, /* fpDamperLowThresholdHigh LSB */ | |
440 | 0x1d95, 0x65, /* fpDamperHighThresholdHigh MSB */ | |
441 | 0x1d96, 0x0e, /* fpDamperHighThresholdHigh LSB */ | |
442 | 0x1da1, 0x3a, /* fpMinimumDamperOutputLow MSB */ | |
443 | 0x1da2, 0xb8, /* fpMinimumDamperOutputLow LSB */ | |
444 | 0x1e08, 0x06, /* MAXWeightLow */ | |
445 | 0x1e0a, 0x0a, /* MAXWeightHigh */ | |
446 | 0x1601, 0x3a, /* Red A MSB */ | |
447 | 0x1602, 0x14, /* Red A LSB */ | |
448 | 0x1605, 0x3b, /* Blue A MSB */ | |
449 | 0x1606, 0x85, /* BLue A LSB */ | |
450 | 0x1609, 0x3b, /* RED B MSB */ | |
451 | 0x160a, 0x85, /* RED B LSB */ | |
452 | 0x160d, 0x3a, /* Blue B MSB */ | |
453 | 0x160e, 0x14, /* Blue B LSB */ | |
454 | 0x1611, 0x30, /* Max Distance from Locus MSB */ | |
455 | 0x1612, 0x8f, /* Max Distance from Locus MSB */ | |
456 | 0x1614, 0x01, /* Enable constrainer */ | |
457 | 0x0000, 0x00, | |
458 | }; | |
459 | ||
460 | static const u16 vs6624_default[] = { | |
461 | VS6624_CONTRAST0, 0x84, | |
462 | VS6624_SATURATION0, 0x75, | |
463 | VS6624_GAMMA0, 0x11, | |
464 | VS6624_CONTRAST1, 0x84, | |
465 | VS6624_SATURATION1, 0x75, | |
466 | VS6624_GAMMA1, 0x11, | |
467 | VS6624_MAN_RG, 0x80, | |
468 | VS6624_MAN_GG, 0x80, | |
469 | VS6624_MAN_BG, 0x80, | |
470 | VS6624_WB_MODE, 0x1, | |
471 | VS6624_EXPO_COMPENSATION, 0xfe, | |
472 | VS6624_EXPO_METER, 0x0, | |
473 | VS6624_LIGHT_FREQ, 0x64, | |
474 | VS6624_PEAK_GAIN, 0xe, | |
475 | VS6624_PEAK_LOW_THR, 0x28, | |
476 | VS6624_HMIRROR0, 0x0, | |
477 | VS6624_VFLIP0, 0x0, | |
478 | VS6624_ZOOM_HSTEP0_MSB, 0x0, | |
479 | VS6624_ZOOM_HSTEP0_LSB, 0x1, | |
480 | VS6624_ZOOM_VSTEP0_MSB, 0x0, | |
481 | VS6624_ZOOM_VSTEP0_LSB, 0x1, | |
482 | VS6624_PAN_HSTEP0_MSB, 0x0, | |
483 | VS6624_PAN_HSTEP0_LSB, 0xf, | |
484 | VS6624_PAN_VSTEP0_MSB, 0x0, | |
485 | VS6624_PAN_VSTEP0_LSB, 0xf, | |
486 | VS6624_SENSOR_MODE, 0x1, | |
487 | VS6624_SYNC_CODE_SETUP, 0x21, | |
488 | VS6624_DISABLE_FR_DAMPER, 0x0, | |
489 | VS6624_FR_DEN, 0x1, | |
490 | VS6624_FR_NUM_LSB, 0xf, | |
491 | VS6624_INIT_PIPE_SETUP, 0x0, | |
492 | VS6624_IMG_FMT0, 0x0, | |
493 | VS6624_YUV_SETUP, 0x1, | |
494 | VS6624_IMAGE_SIZE0, 0x2, | |
495 | 0x0000, 0x00, | |
496 | }; | |
497 | ||
498 | static inline struct vs6624 *to_vs6624(struct v4l2_subdev *sd) | |
499 | { | |
500 | return container_of(sd, struct vs6624, sd); | |
501 | } | |
502 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) | |
503 | { | |
504 | return &container_of(ctrl->handler, struct vs6624, hdl)->sd; | |
505 | } | |
506 | ||
507 | static int vs6624_read(struct v4l2_subdev *sd, u16 index) | |
508 | { | |
509 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
510 | u8 buf[2]; | |
511 | ||
512 | buf[0] = index >> 8; | |
513 | buf[1] = index; | |
514 | i2c_master_send(client, buf, 2); | |
515 | i2c_master_recv(client, buf, 1); | |
516 | ||
517 | return buf[0]; | |
518 | } | |
519 | ||
520 | static int vs6624_write(struct v4l2_subdev *sd, u16 index, | |
521 | u8 value) | |
522 | { | |
523 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
524 | u8 buf[3]; | |
525 | ||
526 | buf[0] = index >> 8; | |
527 | buf[1] = index; | |
528 | buf[2] = value; | |
529 | ||
530 | return i2c_master_send(client, buf, 3); | |
531 | } | |
532 | ||
533 | static int vs6624_writeregs(struct v4l2_subdev *sd, const u16 *regs) | |
534 | { | |
535 | u16 reg; | |
536 | u8 data; | |
537 | ||
538 | while (*regs != 0x00) { | |
539 | reg = *regs++; | |
540 | data = *regs++; | |
541 | ||
542 | vs6624_write(sd, reg, data); | |
543 | } | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static int vs6624_s_ctrl(struct v4l2_ctrl *ctrl) | |
548 | { | |
549 | struct v4l2_subdev *sd = to_sd(ctrl); | |
550 | ||
551 | switch (ctrl->id) { | |
552 | case V4L2_CID_CONTRAST: | |
553 | vs6624_write(sd, VS6624_CONTRAST0, ctrl->val); | |
554 | break; | |
555 | case V4L2_CID_SATURATION: | |
556 | vs6624_write(sd, VS6624_SATURATION0, ctrl->val); | |
557 | break; | |
558 | case V4L2_CID_HFLIP: | |
559 | vs6624_write(sd, VS6624_HMIRROR0, ctrl->val); | |
560 | break; | |
561 | case V4L2_CID_VFLIP: | |
562 | vs6624_write(sd, VS6624_VFLIP0, ctrl->val); | |
563 | break; | |
564 | default: | |
565 | return -EINVAL; | |
566 | } | |
567 | ||
568 | return 0; | |
569 | } | |
570 | ||
571 | static int vs6624_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, | |
572 | enum v4l2_mbus_pixelcode *code) | |
573 | { | |
574 | if (index >= ARRAY_SIZE(vs6624_formats)) | |
575 | return -EINVAL; | |
576 | ||
577 | *code = vs6624_formats[index].mbus_code; | |
578 | return 0; | |
579 | } | |
580 | ||
581 | static int vs6624_try_mbus_fmt(struct v4l2_subdev *sd, | |
582 | struct v4l2_mbus_framefmt *fmt) | |
583 | { | |
584 | int index; | |
585 | ||
586 | for (index = 0; index < ARRAY_SIZE(vs6624_formats); index++) | |
587 | if (vs6624_formats[index].mbus_code == fmt->code) | |
588 | break; | |
589 | if (index >= ARRAY_SIZE(vs6624_formats)) { | |
590 | /* default to first format */ | |
591 | index = 0; | |
592 | fmt->code = vs6624_formats[0].mbus_code; | |
593 | } | |
594 | ||
595 | /* sensor mode is VGA */ | |
596 | if (fmt->width > VGA_WIDTH) | |
597 | fmt->width = VGA_WIDTH; | |
598 | if (fmt->height > VGA_HEIGHT) | |
599 | fmt->height = VGA_HEIGHT; | |
600 | fmt->width = fmt->width & (~3); | |
601 | fmt->height = fmt->height & (~3); | |
602 | fmt->field = V4L2_FIELD_NONE; | |
603 | fmt->colorspace = vs6624_formats[index].colorspace; | |
604 | return 0; | |
605 | } | |
606 | ||
607 | static int vs6624_s_mbus_fmt(struct v4l2_subdev *sd, | |
608 | struct v4l2_mbus_framefmt *fmt) | |
609 | { | |
610 | struct vs6624 *sensor = to_vs6624(sd); | |
611 | int ret; | |
612 | ||
613 | ret = vs6624_try_mbus_fmt(sd, fmt); | |
614 | if (ret) | |
615 | return ret; | |
616 | ||
617 | /* set image format */ | |
618 | switch (fmt->code) { | |
619 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
620 | vs6624_write(sd, VS6624_IMG_FMT0, 0x0); | |
621 | vs6624_write(sd, VS6624_YUV_SETUP, 0x1); | |
622 | break; | |
623 | case V4L2_MBUS_FMT_YUYV8_2X8: | |
624 | vs6624_write(sd, VS6624_IMG_FMT0, 0x0); | |
625 | vs6624_write(sd, VS6624_YUV_SETUP, 0x3); | |
626 | break; | |
627 | case V4L2_MBUS_FMT_RGB565_2X8_LE: | |
628 | vs6624_write(sd, VS6624_IMG_FMT0, 0x4); | |
629 | vs6624_write(sd, VS6624_RGB_SETUP, 0x0); | |
630 | break; | |
631 | default: | |
632 | return -EINVAL; | |
633 | } | |
634 | ||
635 | /* set image size */ | |
636 | if ((fmt->width == VGA_WIDTH) && (fmt->height == VGA_HEIGHT)) | |
637 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x2); | |
638 | else if ((fmt->width == QVGA_WIDTH) && (fmt->height == QVGA_HEIGHT)) | |
639 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x4); | |
640 | else if ((fmt->width == QQVGA_WIDTH) && (fmt->height == QQVGA_HEIGHT)) | |
641 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x6); | |
642 | else if ((fmt->width == CIF_WIDTH) && (fmt->height == CIF_HEIGHT)) | |
643 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x3); | |
644 | else if ((fmt->width == QCIF_WIDTH) && (fmt->height == QCIF_HEIGHT)) | |
645 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x5); | |
646 | else if ((fmt->width == QQCIF_WIDTH) && (fmt->height == QQCIF_HEIGHT)) | |
647 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x7); | |
648 | else { | |
649 | vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x8); | |
650 | vs6624_write(sd, VS6624_MAN_HSIZE0_MSB, fmt->width >> 8); | |
651 | vs6624_write(sd, VS6624_MAN_HSIZE0_LSB, fmt->width & 0xFF); | |
652 | vs6624_write(sd, VS6624_MAN_VSIZE0_MSB, fmt->height >> 8); | |
653 | vs6624_write(sd, VS6624_MAN_VSIZE0_LSB, fmt->height & 0xFF); | |
654 | vs6624_write(sd, VS6624_CROP_CTRL0, 0x1); | |
655 | } | |
656 | ||
657 | sensor->fmt = *fmt; | |
658 | ||
659 | return 0; | |
660 | } | |
661 | ||
662 | static int vs6624_g_mbus_fmt(struct v4l2_subdev *sd, | |
663 | struct v4l2_mbus_framefmt *fmt) | |
664 | { | |
665 | struct vs6624 *sensor = to_vs6624(sd); | |
666 | ||
667 | *fmt = sensor->fmt; | |
668 | return 0; | |
669 | } | |
670 | ||
671 | static int vs6624_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) | |
672 | { | |
673 | struct vs6624 *sensor = to_vs6624(sd); | |
674 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
675 | ||
676 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
677 | return -EINVAL; | |
678 | ||
679 | memset(cp, 0, sizeof(*cp)); | |
680 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
681 | cp->timeperframe.numerator = sensor->frame_rate.denominator; | |
682 | cp->timeperframe.denominator = sensor->frame_rate.numerator; | |
683 | return 0; | |
684 | } | |
685 | ||
686 | static int vs6624_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) | |
687 | { | |
688 | struct vs6624 *sensor = to_vs6624(sd); | |
689 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
690 | struct v4l2_fract *tpf = &cp->timeperframe; | |
691 | ||
692 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
693 | return -EINVAL; | |
694 | if (cp->extendedmode != 0) | |
695 | return -EINVAL; | |
696 | ||
697 | if (tpf->numerator == 0 || tpf->denominator == 0 | |
698 | || (tpf->denominator > tpf->numerator * MAX_FRAME_RATE)) { | |
699 | /* reset to max frame rate */ | |
700 | tpf->numerator = 1; | |
701 | tpf->denominator = MAX_FRAME_RATE; | |
702 | } | |
703 | sensor->frame_rate.numerator = tpf->denominator; | |
704 | sensor->frame_rate.denominator = tpf->numerator; | |
705 | vs6624_write(sd, VS6624_DISABLE_FR_DAMPER, 0x0); | |
706 | vs6624_write(sd, VS6624_FR_NUM_MSB, | |
707 | sensor->frame_rate.numerator >> 8); | |
708 | vs6624_write(sd, VS6624_FR_NUM_LSB, | |
709 | sensor->frame_rate.numerator & 0xFF); | |
710 | vs6624_write(sd, VS6624_FR_DEN, | |
711 | sensor->frame_rate.denominator & 0xFF); | |
712 | return 0; | |
713 | } | |
714 | ||
715 | static int vs6624_s_stream(struct v4l2_subdev *sd, int enable) | |
716 | { | |
717 | if (enable) | |
718 | vs6624_write(sd, VS6624_USER_CMD, 0x2); | |
719 | else | |
720 | vs6624_write(sd, VS6624_USER_CMD, 0x4); | |
721 | udelay(100); | |
722 | return 0; | |
723 | } | |
724 | ||
725 | static int vs6624_g_chip_ident(struct v4l2_subdev *sd, | |
726 | struct v4l2_dbg_chip_ident *chip) | |
727 | { | |
728 | int rev; | |
729 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
730 | ||
731 | rev = (vs6624_read(sd, VS6624_FW_VSN_MAJOR) << 8) | |
732 | | vs6624_read(sd, VS6624_FW_VSN_MINOR); | |
733 | ||
734 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_VS6624, rev); | |
735 | } | |
736 | ||
737 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
738 | static int vs6624_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) | |
739 | { | |
740 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
741 | ||
742 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
743 | return -EINVAL; | |
744 | if (!capable(CAP_SYS_ADMIN)) | |
745 | return -EPERM; | |
746 | reg->val = vs6624_read(sd, reg->reg & 0xffff); | |
747 | reg->size = 1; | |
748 | return 0; | |
749 | } | |
750 | ||
751 | static int vs6624_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) | |
752 | { | |
753 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
754 | ||
755 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
756 | return -EINVAL; | |
757 | if (!capable(CAP_SYS_ADMIN)) | |
758 | return -EPERM; | |
759 | vs6624_write(sd, reg->reg & 0xffff, reg->val & 0xff); | |
760 | return 0; | |
761 | } | |
762 | #endif | |
763 | ||
764 | static const struct v4l2_ctrl_ops vs6624_ctrl_ops = { | |
765 | .s_ctrl = vs6624_s_ctrl, | |
766 | }; | |
767 | ||
768 | static const struct v4l2_subdev_core_ops vs6624_core_ops = { | |
769 | .g_chip_ident = vs6624_g_chip_ident, | |
770 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
771 | .g_register = vs6624_g_register, | |
772 | .s_register = vs6624_s_register, | |
773 | #endif | |
774 | }; | |
775 | ||
776 | static const struct v4l2_subdev_video_ops vs6624_video_ops = { | |
777 | .enum_mbus_fmt = vs6624_enum_mbus_fmt, | |
778 | .try_mbus_fmt = vs6624_try_mbus_fmt, | |
779 | .s_mbus_fmt = vs6624_s_mbus_fmt, | |
780 | .g_mbus_fmt = vs6624_g_mbus_fmt, | |
781 | .s_parm = vs6624_s_parm, | |
782 | .g_parm = vs6624_g_parm, | |
783 | .s_stream = vs6624_s_stream, | |
784 | }; | |
785 | ||
786 | static const struct v4l2_subdev_ops vs6624_ops = { | |
787 | .core = &vs6624_core_ops, | |
788 | .video = &vs6624_video_ops, | |
789 | }; | |
790 | ||
791 | static int __devinit vs6624_probe(struct i2c_client *client, | |
792 | const struct i2c_device_id *id) | |
793 | { | |
794 | struct vs6624 *sensor; | |
795 | struct v4l2_subdev *sd; | |
796 | struct v4l2_ctrl_handler *hdl; | |
797 | const unsigned *ce; | |
798 | int ret; | |
799 | ||
800 | /* Check if the adapter supports the needed features */ | |
801 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) | |
802 | return -EIO; | |
803 | ||
804 | ce = client->dev.platform_data; | |
805 | if (ce == NULL) | |
806 | return -EINVAL; | |
807 | ||
808 | ret = gpio_request(*ce, "VS6624 Chip Enable"); | |
809 | if (ret) { | |
810 | v4l_err(client, "failed to request GPIO %d\n", *ce); | |
811 | return ret; | |
812 | } | |
813 | gpio_direction_output(*ce, 1); | |
814 | /* wait 100ms before any further i2c writes are performed */ | |
815 | mdelay(100); | |
816 | ||
817 | sensor = kzalloc(sizeof(*sensor), GFP_KERNEL); | |
818 | if (sensor == NULL) { | |
819 | gpio_free(*ce); | |
820 | return -ENOMEM; | |
821 | } | |
822 | ||
823 | sd = &sensor->sd; | |
824 | v4l2_i2c_subdev_init(sd, client, &vs6624_ops); | |
825 | ||
826 | vs6624_writeregs(sd, vs6624_p1); | |
827 | vs6624_write(sd, VS6624_MICRO_EN, 0x2); | |
828 | vs6624_write(sd, VS6624_DIO_EN, 0x1); | |
829 | mdelay(10); | |
830 | vs6624_writeregs(sd, vs6624_p2); | |
831 | ||
832 | vs6624_writeregs(sd, vs6624_default); | |
833 | vs6624_write(sd, VS6624_HSYNC_SETUP, 0xF); | |
834 | vs6624_writeregs(sd, vs6624_run_setup); | |
835 | ||
836 | /* set frame rate */ | |
837 | sensor->frame_rate.numerator = MAX_FRAME_RATE; | |
838 | sensor->frame_rate.denominator = 1; | |
839 | vs6624_write(sd, VS6624_DISABLE_FR_DAMPER, 0x0); | |
840 | vs6624_write(sd, VS6624_FR_NUM_MSB, | |
841 | sensor->frame_rate.numerator >> 8); | |
842 | vs6624_write(sd, VS6624_FR_NUM_LSB, | |
843 | sensor->frame_rate.numerator & 0xFF); | |
844 | vs6624_write(sd, VS6624_FR_DEN, | |
845 | sensor->frame_rate.denominator & 0xFF); | |
846 | ||
847 | sensor->fmt = vs6624_default_fmt; | |
848 | sensor->ce_pin = *ce; | |
849 | ||
850 | v4l_info(client, "chip found @ 0x%02x (%s)\n", | |
851 | client->addr << 1, client->adapter->name); | |
852 | ||
853 | hdl = &sensor->hdl; | |
854 | v4l2_ctrl_handler_init(hdl, 4); | |
855 | v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, | |
856 | V4L2_CID_CONTRAST, 0, 0xFF, 1, 0x87); | |
857 | v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, | |
858 | V4L2_CID_SATURATION, 0, 0xFF, 1, 0x78); | |
859 | v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, | |
860 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
861 | v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, | |
862 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
863 | /* hook the control handler into the driver */ | |
864 | sd->ctrl_handler = hdl; | |
865 | if (hdl->error) { | |
866 | int err = hdl->error; | |
867 | ||
868 | v4l2_ctrl_handler_free(hdl); | |
869 | kfree(sensor); | |
870 | gpio_free(*ce); | |
871 | return err; | |
872 | } | |
873 | ||
874 | /* initialize the hardware to the default control values */ | |
875 | ret = v4l2_ctrl_handler_setup(hdl); | |
876 | if (ret) { | |
877 | v4l2_ctrl_handler_free(hdl); | |
878 | kfree(sensor); | |
879 | gpio_free(*ce); | |
880 | } | |
881 | return ret; | |
882 | } | |
883 | ||
884 | static int __devexit vs6624_remove(struct i2c_client *client) | |
885 | { | |
886 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
887 | struct vs6624 *sensor = to_vs6624(sd); | |
888 | ||
889 | v4l2_device_unregister_subdev(sd); | |
890 | v4l2_ctrl_handler_free(sd->ctrl_handler); | |
891 | gpio_free(sensor->ce_pin); | |
892 | kfree(sensor); | |
893 | return 0; | |
894 | } | |
895 | ||
896 | static const struct i2c_device_id vs6624_id[] = { | |
897 | {"vs6624", 0}, | |
898 | {}, | |
899 | }; | |
900 | ||
901 | MODULE_DEVICE_TABLE(i2c, vs6624_id); | |
902 | ||
903 | static struct i2c_driver vs6624_driver = { | |
904 | .driver = { | |
905 | .owner = THIS_MODULE, | |
906 | .name = "vs6624", | |
907 | }, | |
908 | .probe = vs6624_probe, | |
909 | .remove = __devexit_p(vs6624_remove), | |
910 | .id_table = vs6624_id, | |
911 | }; | |
912 | ||
913 | static __init int vs6624_init(void) | |
914 | { | |
915 | return i2c_add_driver(&vs6624_driver); | |
916 | } | |
917 | ||
918 | static __exit void vs6624_exit(void) | |
919 | { | |
920 | i2c_del_driver(&vs6624_driver); | |
921 | } | |
922 | ||
923 | module_init(vs6624_init); | |
924 | module_exit(vs6624_exit); | |
925 | ||
926 | MODULE_DESCRIPTION("VS6624 sensor driver"); | |
927 | MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); | |
928 | MODULE_LICENSE("GPL v2"); |