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bf27502b ST |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | // Copyright (c) 2019 Intel Corporation. | |
3 | ||
4 | #include <asm/unaligned.h> | |
5 | #include <linux/acpi.h> | |
49d9ad71 | 6 | #include <linux/clk.h> |
bf27502b | 7 | #include <linux/delay.h> |
49d9ad71 | 8 | #include <linux/gpio/consumer.h> |
bf27502b | 9 | #include <linux/i2c.h> |
49d9ad71 | 10 | #include <linux/mod_devicetable.h> |
bf27502b ST |
11 | #include <linux/module.h> |
12 | #include <linux/pm_runtime.h> | |
49d9ad71 | 13 | #include <linux/regulator/consumer.h> |
bf27502b ST |
14 | #include <media/v4l2-ctrls.h> |
15 | #include <media/v4l2-device.h> | |
16 | #include <media/v4l2-fwnode.h> | |
17 | ||
18 | #define OV5675_REG_VALUE_08BIT 1 | |
19 | #define OV5675_REG_VALUE_16BIT 2 | |
20 | #define OV5675_REG_VALUE_24BIT 3 | |
21 | ||
22 | #define OV5675_LINK_FREQ_450MHZ 450000000ULL | |
23 | #define OV5675_SCLK 90000000LL | |
49d9ad71 | 24 | #define OV5675_XVCLK_19_2 19200000 |
bf27502b ST |
25 | #define OV5675_DATA_LANES 2 |
26 | #define OV5675_RGB_DEPTH 10 | |
27 | ||
28 | #define OV5675_REG_CHIP_ID 0x300a | |
29 | #define OV5675_CHIP_ID 0x5675 | |
30 | ||
31 | #define OV5675_REG_MODE_SELECT 0x0100 | |
32 | #define OV5675_MODE_STANDBY 0x00 | |
33 | #define OV5675_MODE_STREAMING 0x01 | |
34 | ||
35 | /* vertical-timings from sensor */ | |
36 | #define OV5675_REG_VTS 0x380e | |
37 | #define OV5675_VTS_30FPS 0x07e4 | |
38 | #define OV5675_VTS_30FPS_MIN 0x07e4 | |
39 | #define OV5675_VTS_MAX 0x7fff | |
40 | ||
41 | /* horizontal-timings from sensor */ | |
42 | #define OV5675_REG_HTS 0x380c | |
43 | ||
44 | /* Exposure controls from sensor */ | |
45 | #define OV5675_REG_EXPOSURE 0x3500 | |
46 | #define OV5675_EXPOSURE_MIN 4 | |
47 | #define OV5675_EXPOSURE_MAX_MARGIN 4 | |
48 | #define OV5675_EXPOSURE_STEP 1 | |
49 | ||
50 | /* Analog gain controls from sensor */ | |
51 | #define OV5675_REG_ANALOG_GAIN 0x3508 | |
52 | #define OV5675_ANAL_GAIN_MIN 128 | |
53 | #define OV5675_ANAL_GAIN_MAX 2047 | |
54 | #define OV5675_ANAL_GAIN_STEP 1 | |
55 | ||
56 | /* Digital gain controls from sensor */ | |
24e9edc1 | 57 | #define OV5675_REG_DIGITAL_GAIN 0x350a |
bf27502b ST |
58 | #define OV5675_REG_MWB_R_GAIN 0x5019 |
59 | #define OV5675_REG_MWB_G_GAIN 0x501b | |
60 | #define OV5675_REG_MWB_B_GAIN 0x501d | |
24e9edc1 | 61 | #define OV5675_DGTL_GAIN_MIN 1024 |
bf27502b ST |
62 | #define OV5675_DGTL_GAIN_MAX 4095 |
63 | #define OV5675_DGTL_GAIN_STEP 1 | |
64 | #define OV5675_DGTL_GAIN_DEFAULT 1024 | |
65 | ||
24e9edc1 BC |
66 | /* Group Access */ |
67 | #define OV5675_REG_GROUP_ACCESS 0x3208 | |
68 | #define OV5675_GROUP_HOLD_START 0x0 | |
69 | #define OV5675_GROUP_HOLD_END 0x10 | |
70 | #define OV5675_GROUP_HOLD_LAUNCH 0xa0 | |
71 | ||
bf27502b ST |
72 | /* Test Pattern Control */ |
73 | #define OV5675_REG_TEST_PATTERN 0x4503 | |
74 | #define OV5675_TEST_PATTERN_ENABLE BIT(7) | |
75 | #define OV5675_TEST_PATTERN_BAR_SHIFT 2 | |
76 | ||
e8882e1b ST |
77 | /* Flip Mirror Controls from sensor */ |
78 | #define OV5675_REG_FORMAT1 0x3820 | |
79 | #define OV5675_REG_FORMAT2 0x373d | |
80 | ||
bf27502b ST |
81 | #define to_ov5675(_sd) container_of(_sd, struct ov5675, sd) |
82 | ||
49d9ad71 QS |
83 | static const char * const ov5675_supply_names[] = { |
84 | "avdd", /* Analog power */ | |
85 | "dovdd", /* Digital I/O power */ | |
86 | "dvdd", /* Digital core power */ | |
87 | }; | |
88 | ||
89 | #define OV5675_NUM_SUPPLIES ARRAY_SIZE(ov5675_supply_names) | |
90 | ||
bf27502b ST |
91 | enum { |
92 | OV5675_LINK_FREQ_900MBPS, | |
93 | }; | |
94 | ||
95 | struct ov5675_reg { | |
96 | u16 address; | |
97 | u8 val; | |
98 | }; | |
99 | ||
100 | struct ov5675_reg_list { | |
101 | u32 num_of_regs; | |
102 | const struct ov5675_reg *regs; | |
103 | }; | |
104 | ||
105 | struct ov5675_link_freq_config { | |
106 | const struct ov5675_reg_list reg_list; | |
107 | }; | |
108 | ||
109 | struct ov5675_mode { | |
110 | /* Frame width in pixels */ | |
111 | u32 width; | |
112 | ||
113 | /* Frame height in pixels */ | |
114 | u32 height; | |
115 | ||
116 | /* Horizontal timining size */ | |
117 | u32 hts; | |
118 | ||
119 | /* Default vertical timining size */ | |
120 | u32 vts_def; | |
121 | ||
122 | /* Min vertical timining size */ | |
123 | u32 vts_min; | |
124 | ||
125 | /* Link frequency needed for this resolution */ | |
126 | u32 link_freq_index; | |
127 | ||
128 | /* Sensor register settings for this resolution */ | |
129 | const struct ov5675_reg_list reg_list; | |
130 | }; | |
131 | ||
132 | static const struct ov5675_reg mipi_data_rate_900mbps[] = { | |
133 | {0x0103, 0x01}, | |
134 | {0x0100, 0x00}, | |
135 | {0x0300, 0x04}, | |
136 | {0x0302, 0x8d}, | |
137 | {0x0303, 0x00}, | |
138 | {0x030d, 0x26}, | |
139 | }; | |
140 | ||
141 | static const struct ov5675_reg mode_2592x1944_regs[] = { | |
142 | {0x3002, 0x21}, | |
143 | {0x3107, 0x23}, | |
144 | {0x3501, 0x20}, | |
145 | {0x3503, 0x0c}, | |
146 | {0x3508, 0x03}, | |
147 | {0x3509, 0x00}, | |
148 | {0x3600, 0x66}, | |
149 | {0x3602, 0x30}, | |
150 | {0x3610, 0xa5}, | |
151 | {0x3612, 0x93}, | |
152 | {0x3620, 0x80}, | |
153 | {0x3642, 0x0e}, | |
154 | {0x3661, 0x00}, | |
155 | {0x3662, 0x10}, | |
156 | {0x3664, 0xf3}, | |
157 | {0x3665, 0x9e}, | |
158 | {0x3667, 0xa5}, | |
159 | {0x366e, 0x55}, | |
160 | {0x366f, 0x55}, | |
161 | {0x3670, 0x11}, | |
162 | {0x3671, 0x11}, | |
163 | {0x3672, 0x11}, | |
164 | {0x3673, 0x11}, | |
165 | {0x3714, 0x24}, | |
166 | {0x371a, 0x3e}, | |
167 | {0x3733, 0x10}, | |
168 | {0x3734, 0x00}, | |
169 | {0x373d, 0x24}, | |
170 | {0x3764, 0x20}, | |
171 | {0x3765, 0x20}, | |
172 | {0x3766, 0x12}, | |
173 | {0x37a1, 0x14}, | |
174 | {0x37a8, 0x1c}, | |
175 | {0x37ab, 0x0f}, | |
176 | {0x37c2, 0x04}, | |
177 | {0x37cb, 0x00}, | |
178 | {0x37cc, 0x00}, | |
179 | {0x37cd, 0x00}, | |
180 | {0x37ce, 0x00}, | |
181 | {0x37d8, 0x02}, | |
182 | {0x37d9, 0x08}, | |
183 | {0x37dc, 0x04}, | |
184 | {0x3800, 0x00}, | |
185 | {0x3801, 0x00}, | |
186 | {0x3802, 0x00}, | |
187 | {0x3803, 0x04}, | |
188 | {0x3804, 0x0a}, | |
189 | {0x3805, 0x3f}, | |
190 | {0x3806, 0x07}, | |
191 | {0x3807, 0xb3}, | |
192 | {0x3808, 0x0a}, | |
193 | {0x3809, 0x20}, | |
194 | {0x380a, 0x07}, | |
195 | {0x380b, 0x98}, | |
196 | {0x380c, 0x02}, | |
197 | {0x380d, 0xee}, | |
198 | {0x380e, 0x07}, | |
199 | {0x380f, 0xe4}, | |
200 | {0x3811, 0x10}, | |
201 | {0x3813, 0x0d}, | |
202 | {0x3814, 0x01}, | |
203 | {0x3815, 0x01}, | |
204 | {0x3816, 0x01}, | |
205 | {0x3817, 0x01}, | |
206 | {0x381e, 0x02}, | |
207 | {0x3820, 0x88}, | |
208 | {0x3821, 0x01}, | |
209 | {0x3832, 0x04}, | |
210 | {0x3c80, 0x01}, | |
211 | {0x3c82, 0x00}, | |
212 | {0x3c83, 0xc8}, | |
213 | {0x3c8c, 0x0f}, | |
214 | {0x3c8d, 0xa0}, | |
215 | {0x3c90, 0x07}, | |
216 | {0x3c91, 0x00}, | |
217 | {0x3c92, 0x00}, | |
218 | {0x3c93, 0x00}, | |
219 | {0x3c94, 0xd0}, | |
220 | {0x3c95, 0x50}, | |
221 | {0x3c96, 0x35}, | |
222 | {0x3c97, 0x00}, | |
223 | {0x4001, 0xe0}, | |
224 | {0x4008, 0x02}, | |
225 | {0x4009, 0x0d}, | |
226 | {0x400f, 0x80}, | |
227 | {0x4013, 0x02}, | |
228 | {0x4040, 0x00}, | |
229 | {0x4041, 0x07}, | |
230 | {0x404c, 0x50}, | |
231 | {0x404e, 0x20}, | |
232 | {0x4500, 0x06}, | |
233 | {0x4503, 0x00}, | |
234 | {0x450a, 0x04}, | |
235 | {0x4809, 0x04}, | |
236 | {0x480c, 0x12}, | |
237 | {0x4819, 0x70}, | |
238 | {0x4825, 0x32}, | |
239 | {0x4826, 0x32}, | |
240 | {0x482a, 0x06}, | |
241 | {0x4833, 0x08}, | |
242 | {0x4837, 0x0d}, | |
243 | {0x5000, 0x77}, | |
244 | {0x5b00, 0x01}, | |
245 | {0x5b01, 0x10}, | |
246 | {0x5b02, 0x01}, | |
247 | {0x5b03, 0xdb}, | |
248 | {0x5b05, 0x6c}, | |
249 | {0x5e10, 0xfc}, | |
250 | {0x3500, 0x00}, | |
251 | {0x3501, 0x3E}, | |
252 | {0x3502, 0x60}, | |
253 | {0x3503, 0x08}, | |
254 | {0x3508, 0x04}, | |
255 | {0x3509, 0x00}, | |
256 | {0x3832, 0x48}, | |
257 | {0x5780, 0x3e}, | |
258 | {0x5781, 0x0f}, | |
259 | {0x5782, 0x44}, | |
260 | {0x5783, 0x02}, | |
261 | {0x5784, 0x01}, | |
262 | {0x5785, 0x01}, | |
263 | {0x5786, 0x00}, | |
264 | {0x5787, 0x04}, | |
265 | {0x5788, 0x02}, | |
266 | {0x5789, 0x0f}, | |
267 | {0x578a, 0xfd}, | |
268 | {0x578b, 0xf5}, | |
269 | {0x578c, 0xf5}, | |
270 | {0x578d, 0x03}, | |
271 | {0x578e, 0x08}, | |
272 | {0x578f, 0x0c}, | |
273 | {0x5790, 0x08}, | |
274 | {0x5791, 0x06}, | |
275 | {0x5792, 0x00}, | |
276 | {0x5793, 0x52}, | |
277 | {0x5794, 0xa3}, | |
278 | {0x4003, 0x40}, | |
279 | {0x3107, 0x01}, | |
280 | {0x3c80, 0x08}, | |
281 | {0x3c83, 0xb1}, | |
282 | {0x3c8c, 0x10}, | |
283 | {0x3c8d, 0x00}, | |
284 | {0x3c90, 0x00}, | |
285 | {0x3c94, 0x00}, | |
286 | {0x3c95, 0x00}, | |
287 | {0x3c96, 0x00}, | |
288 | {0x37cb, 0x09}, | |
289 | {0x37cc, 0x15}, | |
290 | {0x37cd, 0x1f}, | |
291 | {0x37ce, 0x1f}, | |
292 | }; | |
293 | ||
294 | static const struct ov5675_reg mode_1296x972_regs[] = { | |
295 | {0x3002, 0x21}, | |
296 | {0x3107, 0x23}, | |
297 | {0x3501, 0x20}, | |
298 | {0x3503, 0x0c}, | |
299 | {0x3508, 0x03}, | |
300 | {0x3509, 0x00}, | |
301 | {0x3600, 0x66}, | |
302 | {0x3602, 0x30}, | |
303 | {0x3610, 0xa5}, | |
304 | {0x3612, 0x93}, | |
305 | {0x3620, 0x80}, | |
306 | {0x3642, 0x0e}, | |
307 | {0x3661, 0x00}, | |
308 | {0x3662, 0x08}, | |
309 | {0x3664, 0xf3}, | |
310 | {0x3665, 0x9e}, | |
311 | {0x3667, 0xa5}, | |
312 | {0x366e, 0x55}, | |
313 | {0x366f, 0x55}, | |
314 | {0x3670, 0x11}, | |
315 | {0x3671, 0x11}, | |
316 | {0x3672, 0x11}, | |
317 | {0x3673, 0x11}, | |
318 | {0x3714, 0x28}, | |
319 | {0x371a, 0x3e}, | |
320 | {0x3733, 0x10}, | |
321 | {0x3734, 0x00}, | |
322 | {0x373d, 0x24}, | |
323 | {0x3764, 0x20}, | |
324 | {0x3765, 0x20}, | |
325 | {0x3766, 0x12}, | |
326 | {0x37a1, 0x14}, | |
327 | {0x37a8, 0x1c}, | |
328 | {0x37ab, 0x0f}, | |
329 | {0x37c2, 0x14}, | |
330 | {0x37cb, 0x00}, | |
331 | {0x37cc, 0x00}, | |
332 | {0x37cd, 0x00}, | |
333 | {0x37ce, 0x00}, | |
334 | {0x37d8, 0x02}, | |
335 | {0x37d9, 0x04}, | |
336 | {0x37dc, 0x04}, | |
337 | {0x3800, 0x00}, | |
338 | {0x3801, 0x00}, | |
339 | {0x3802, 0x00}, | |
e8882e1b | 340 | {0x3803, 0x00}, |
bf27502b ST |
341 | {0x3804, 0x0a}, |
342 | {0x3805, 0x3f}, | |
e8882e1b ST |
343 | {0x3806, 0x07}, |
344 | {0x3807, 0xb7}, | |
bf27502b | 345 | {0x3808, 0x05}, |
e8882e1b ST |
346 | {0x3809, 0x10}, |
347 | {0x380a, 0x03}, | |
348 | {0x380b, 0xcc}, | |
bf27502b ST |
349 | {0x380c, 0x02}, |
350 | {0x380d, 0xee}, | |
351 | {0x380e, 0x07}, | |
e8882e1b ST |
352 | {0x380f, 0xd0}, |
353 | {0x3811, 0x08}, | |
354 | {0x3813, 0x0d}, | |
bf27502b ST |
355 | {0x3814, 0x03}, |
356 | {0x3815, 0x01}, | |
357 | {0x3816, 0x03}, | |
358 | {0x3817, 0x01}, | |
359 | {0x381e, 0x02}, | |
360 | {0x3820, 0x8b}, | |
361 | {0x3821, 0x01}, | |
362 | {0x3832, 0x04}, | |
363 | {0x3c80, 0x01}, | |
364 | {0x3c82, 0x00}, | |
365 | {0x3c83, 0xc8}, | |
366 | {0x3c8c, 0x0f}, | |
367 | {0x3c8d, 0xa0}, | |
368 | {0x3c90, 0x07}, | |
369 | {0x3c91, 0x00}, | |
370 | {0x3c92, 0x00}, | |
371 | {0x3c93, 0x00}, | |
372 | {0x3c94, 0xd0}, | |
373 | {0x3c95, 0x50}, | |
374 | {0x3c96, 0x35}, | |
375 | {0x3c97, 0x00}, | |
376 | {0x4001, 0xe0}, | |
377 | {0x4008, 0x00}, | |
378 | {0x4009, 0x07}, | |
379 | {0x400f, 0x80}, | |
380 | {0x4013, 0x02}, | |
381 | {0x4040, 0x00}, | |
382 | {0x4041, 0x03}, | |
383 | {0x404c, 0x50}, | |
384 | {0x404e, 0x20}, | |
385 | {0x4500, 0x06}, | |
386 | {0x4503, 0x00}, | |
387 | {0x450a, 0x04}, | |
388 | {0x4809, 0x04}, | |
389 | {0x480c, 0x12}, | |
390 | {0x4819, 0x70}, | |
391 | {0x4825, 0x32}, | |
392 | {0x4826, 0x32}, | |
393 | {0x482a, 0x06}, | |
394 | {0x4833, 0x08}, | |
395 | {0x4837, 0x0d}, | |
396 | {0x5000, 0x77}, | |
397 | {0x5b00, 0x01}, | |
398 | {0x5b01, 0x10}, | |
399 | {0x5b02, 0x01}, | |
400 | {0x5b03, 0xdb}, | |
401 | {0x5b05, 0x6c}, | |
402 | {0x5e10, 0xfc}, | |
403 | {0x3500, 0x00}, | |
404 | {0x3501, 0x1F}, | |
405 | {0x3502, 0x20}, | |
406 | {0x3503, 0x08}, | |
407 | {0x3508, 0x04}, | |
408 | {0x3509, 0x00}, | |
409 | {0x3832, 0x48}, | |
410 | {0x5780, 0x3e}, | |
411 | {0x5781, 0x0f}, | |
412 | {0x5782, 0x44}, | |
413 | {0x5783, 0x02}, | |
414 | {0x5784, 0x01}, | |
415 | {0x5785, 0x01}, | |
416 | {0x5786, 0x00}, | |
417 | {0x5787, 0x04}, | |
418 | {0x5788, 0x02}, | |
419 | {0x5789, 0x0f}, | |
420 | {0x578a, 0xfd}, | |
421 | {0x578b, 0xf5}, | |
422 | {0x578c, 0xf5}, | |
423 | {0x578d, 0x03}, | |
424 | {0x578e, 0x08}, | |
425 | {0x578f, 0x0c}, | |
426 | {0x5790, 0x08}, | |
427 | {0x5791, 0x06}, | |
428 | {0x5792, 0x00}, | |
429 | {0x5793, 0x52}, | |
430 | {0x5794, 0xa3}, | |
431 | {0x4003, 0x40}, | |
432 | {0x3107, 0x01}, | |
433 | {0x3c80, 0x08}, | |
434 | {0x3c83, 0xb1}, | |
435 | {0x3c8c, 0x10}, | |
436 | {0x3c8d, 0x00}, | |
437 | {0x3c90, 0x00}, | |
438 | {0x3c94, 0x00}, | |
439 | {0x3c95, 0x00}, | |
440 | {0x3c96, 0x00}, | |
441 | {0x37cb, 0x09}, | |
442 | {0x37cc, 0x15}, | |
443 | {0x37cd, 0x1f}, | |
444 | {0x37ce, 0x1f}, | |
445 | }; | |
446 | ||
447 | static const char * const ov5675_test_pattern_menu[] = { | |
448 | "Disabled", | |
449 | "Standard Color Bar", | |
450 | "Top-Bottom Darker Color Bar", | |
451 | "Right-Left Darker Color Bar", | |
452 | "Bottom-Top Darker Color Bar" | |
453 | }; | |
454 | ||
455 | static const s64 link_freq_menu_items[] = { | |
456 | OV5675_LINK_FREQ_450MHZ, | |
457 | }; | |
458 | ||
459 | static const struct ov5675_link_freq_config link_freq_configs[] = { | |
460 | [OV5675_LINK_FREQ_900MBPS] = { | |
461 | .reg_list = { | |
462 | .num_of_regs = ARRAY_SIZE(mipi_data_rate_900mbps), | |
463 | .regs = mipi_data_rate_900mbps, | |
464 | } | |
465 | } | |
466 | }; | |
467 | ||
468 | static const struct ov5675_mode supported_modes[] = { | |
469 | { | |
470 | .width = 2592, | |
471 | .height = 1944, | |
472 | .hts = 1500, | |
473 | .vts_def = OV5675_VTS_30FPS, | |
474 | .vts_min = OV5675_VTS_30FPS_MIN, | |
475 | .reg_list = { | |
476 | .num_of_regs = ARRAY_SIZE(mode_2592x1944_regs), | |
477 | .regs = mode_2592x1944_regs, | |
478 | }, | |
479 | .link_freq_index = OV5675_LINK_FREQ_900MBPS, | |
480 | }, | |
481 | { | |
482 | .width = 1296, | |
483 | .height = 972, | |
484 | .hts = 1500, | |
485 | .vts_def = OV5675_VTS_30FPS, | |
486 | .vts_min = OV5675_VTS_30FPS_MIN, | |
487 | .reg_list = { | |
488 | .num_of_regs = ARRAY_SIZE(mode_1296x972_regs), | |
489 | .regs = mode_1296x972_regs, | |
490 | }, | |
491 | .link_freq_index = OV5675_LINK_FREQ_900MBPS, | |
492 | } | |
493 | }; | |
494 | ||
495 | struct ov5675 { | |
496 | struct v4l2_subdev sd; | |
497 | struct media_pad pad; | |
498 | struct v4l2_ctrl_handler ctrl_handler; | |
49d9ad71 QS |
499 | struct clk *xvclk; |
500 | struct gpio_desc *reset_gpio; | |
501 | struct regulator_bulk_data supplies[OV5675_NUM_SUPPLIES]; | |
bf27502b ST |
502 | |
503 | /* V4L2 Controls */ | |
504 | struct v4l2_ctrl *link_freq; | |
505 | struct v4l2_ctrl *pixel_rate; | |
506 | struct v4l2_ctrl *vblank; | |
507 | struct v4l2_ctrl *hblank; | |
508 | struct v4l2_ctrl *exposure; | |
509 | ||
510 | /* Current mode */ | |
511 | const struct ov5675_mode *cur_mode; | |
512 | ||
513 | /* To serialize asynchronus callbacks */ | |
514 | struct mutex mutex; | |
515 | ||
516 | /* Streaming on/off */ | |
517 | bool streaming; | |
5525fd86 BC |
518 | |
519 | /* True if the device has been identified */ | |
520 | bool identified; | |
bf27502b ST |
521 | }; |
522 | ||
523 | static u64 to_pixel_rate(u32 f_index) | |
524 | { | |
525 | u64 pixel_rate = link_freq_menu_items[f_index] * 2 * OV5675_DATA_LANES; | |
526 | ||
527 | do_div(pixel_rate, OV5675_RGB_DEPTH); | |
528 | ||
529 | return pixel_rate; | |
530 | } | |
531 | ||
532 | static u64 to_pixels_per_line(u32 hts, u32 f_index) | |
533 | { | |
534 | u64 ppl = hts * to_pixel_rate(f_index); | |
535 | ||
536 | do_div(ppl, OV5675_SCLK); | |
537 | ||
538 | return ppl; | |
539 | } | |
540 | ||
541 | static int ov5675_read_reg(struct ov5675 *ov5675, u16 reg, u16 len, u32 *val) | |
542 | { | |
543 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
544 | struct i2c_msg msgs[2]; | |
545 | u8 addr_buf[2]; | |
546 | u8 data_buf[4] = {0}; | |
547 | int ret; | |
548 | ||
549 | if (len > 4) | |
550 | return -EINVAL; | |
551 | ||
552 | put_unaligned_be16(reg, addr_buf); | |
553 | msgs[0].addr = client->addr; | |
554 | msgs[0].flags = 0; | |
555 | msgs[0].len = sizeof(addr_buf); | |
556 | msgs[0].buf = addr_buf; | |
557 | msgs[1].addr = client->addr; | |
558 | msgs[1].flags = I2C_M_RD; | |
559 | msgs[1].len = len; | |
560 | msgs[1].buf = &data_buf[4 - len]; | |
561 | ||
562 | ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); | |
563 | if (ret != ARRAY_SIZE(msgs)) | |
564 | return -EIO; | |
565 | ||
566 | *val = get_unaligned_be32(data_buf); | |
567 | ||
568 | return 0; | |
569 | } | |
570 | ||
571 | static int ov5675_write_reg(struct ov5675 *ov5675, u16 reg, u16 len, u32 val) | |
572 | { | |
573 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
574 | u8 buf[6]; | |
575 | ||
576 | if (len > 4) | |
577 | return -EINVAL; | |
578 | ||
579 | put_unaligned_be16(reg, buf); | |
580 | put_unaligned_be32(val << 8 * (4 - len), buf + 2); | |
581 | if (i2c_master_send(client, buf, len + 2) != len + 2) | |
582 | return -EIO; | |
583 | ||
584 | return 0; | |
585 | } | |
586 | ||
587 | static int ov5675_write_reg_list(struct ov5675 *ov5675, | |
588 | const struct ov5675_reg_list *r_list) | |
589 | { | |
590 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
591 | unsigned int i; | |
592 | int ret; | |
593 | ||
594 | for (i = 0; i < r_list->num_of_regs; i++) { | |
595 | ret = ov5675_write_reg(ov5675, r_list->regs[i].address, 1, | |
596 | r_list->regs[i].val); | |
597 | if (ret) { | |
598 | dev_err_ratelimited(&client->dev, | |
599 | "failed to write reg 0x%4.4x. error = %d", | |
600 | r_list->regs[i].address, ret); | |
601 | return ret; | |
602 | } | |
603 | } | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
608 | static int ov5675_update_digital_gain(struct ov5675 *ov5675, u32 d_gain) | |
609 | { | |
610 | int ret; | |
611 | ||
24e9edc1 BC |
612 | ret = ov5675_write_reg(ov5675, OV5675_REG_GROUP_ACCESS, |
613 | OV5675_REG_VALUE_08BIT, | |
614 | OV5675_GROUP_HOLD_START); | |
615 | if (ret) | |
616 | return ret; | |
617 | ||
bf27502b ST |
618 | ret = ov5675_write_reg(ov5675, OV5675_REG_MWB_R_GAIN, |
619 | OV5675_REG_VALUE_16BIT, d_gain); | |
620 | if (ret) | |
621 | return ret; | |
622 | ||
623 | ret = ov5675_write_reg(ov5675, OV5675_REG_MWB_G_GAIN, | |
624 | OV5675_REG_VALUE_16BIT, d_gain); | |
625 | if (ret) | |
626 | return ret; | |
627 | ||
24e9edc1 BC |
628 | ret = ov5675_write_reg(ov5675, OV5675_REG_MWB_B_GAIN, |
629 | OV5675_REG_VALUE_16BIT, d_gain); | |
630 | if (ret) | |
631 | return ret; | |
632 | ||
633 | ret = ov5675_write_reg(ov5675, OV5675_REG_GROUP_ACCESS, | |
634 | OV5675_REG_VALUE_08BIT, | |
635 | OV5675_GROUP_HOLD_END); | |
636 | if (ret) | |
637 | return ret; | |
638 | ||
639 | ret = ov5675_write_reg(ov5675, OV5675_REG_GROUP_ACCESS, | |
640 | OV5675_REG_VALUE_08BIT, | |
641 | OV5675_GROUP_HOLD_LAUNCH); | |
642 | return ret; | |
bf27502b ST |
643 | } |
644 | ||
645 | static int ov5675_test_pattern(struct ov5675 *ov5675, u32 pattern) | |
646 | { | |
647 | if (pattern) | |
648 | pattern = (pattern - 1) << OV5675_TEST_PATTERN_BAR_SHIFT | | |
649 | OV5675_TEST_PATTERN_ENABLE; | |
650 | ||
651 | return ov5675_write_reg(ov5675, OV5675_REG_TEST_PATTERN, | |
652 | OV5675_REG_VALUE_08BIT, pattern); | |
653 | } | |
654 | ||
e8882e1b ST |
655 | /* |
656 | * OV5675 supports keeping the pixel order by mirror and flip function | |
657 | * The Bayer order isn't affected by the flip controls | |
658 | */ | |
659 | static int ov5675_set_ctrl_hflip(struct ov5675 *ov5675, u32 ctrl_val) | |
660 | { | |
661 | int ret; | |
662 | u32 val; | |
663 | ||
664 | ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT1, | |
665 | OV5675_REG_VALUE_08BIT, &val); | |
666 | if (ret) | |
667 | return ret; | |
668 | ||
669 | return ov5675_write_reg(ov5675, OV5675_REG_FORMAT1, | |
670 | OV5675_REG_VALUE_08BIT, | |
6f862f84 | 671 | ctrl_val ? val & ~BIT(3) : val | BIT(3)); |
e8882e1b ST |
672 | } |
673 | ||
674 | static int ov5675_set_ctrl_vflip(struct ov5675 *ov5675, u8 ctrl_val) | |
675 | { | |
676 | int ret; | |
677 | u32 val; | |
678 | ||
679 | ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT1, | |
680 | OV5675_REG_VALUE_08BIT, &val); | |
681 | if (ret) | |
682 | return ret; | |
683 | ||
684 | ret = ov5675_write_reg(ov5675, OV5675_REG_FORMAT1, | |
685 | OV5675_REG_VALUE_08BIT, | |
6f862f84 | 686 | ctrl_val ? val | BIT(4) | BIT(5) : val & ~BIT(4) & ~BIT(5)); |
e8882e1b ST |
687 | |
688 | if (ret) | |
689 | return ret; | |
690 | ||
691 | ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT2, | |
692 | OV5675_REG_VALUE_08BIT, &val); | |
693 | ||
694 | if (ret) | |
695 | return ret; | |
696 | ||
697 | return ov5675_write_reg(ov5675, OV5675_REG_FORMAT2, | |
698 | OV5675_REG_VALUE_08BIT, | |
6f862f84 | 699 | ctrl_val ? val | BIT(1) : val & ~BIT(1)); |
e8882e1b ST |
700 | } |
701 | ||
bf27502b ST |
702 | static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl) |
703 | { | |
704 | struct ov5675 *ov5675 = container_of(ctrl->handler, | |
705 | struct ov5675, ctrl_handler); | |
706 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
707 | s64 exposure_max; | |
708 | int ret = 0; | |
709 | ||
710 | /* Propagate change of current control to all related controls */ | |
711 | if (ctrl->id == V4L2_CID_VBLANK) { | |
712 | /* Update max exposure while meeting expected vblanking */ | |
ab3d4b41 BC |
713 | exposure_max = ov5675->cur_mode->height + ctrl->val - |
714 | OV5675_EXPOSURE_MAX_MARGIN; | |
bf27502b ST |
715 | __v4l2_ctrl_modify_range(ov5675->exposure, |
716 | ov5675->exposure->minimum, | |
717 | exposure_max, ov5675->exposure->step, | |
718 | exposure_max); | |
719 | } | |
720 | ||
721 | /* V4L2 controls values will be applied only when power is already up */ | |
722 | if (!pm_runtime_get_if_in_use(&client->dev)) | |
723 | return 0; | |
724 | ||
725 | switch (ctrl->id) { | |
726 | case V4L2_CID_ANALOGUE_GAIN: | |
727 | ret = ov5675_write_reg(ov5675, OV5675_REG_ANALOG_GAIN, | |
728 | OV5675_REG_VALUE_16BIT, ctrl->val); | |
729 | break; | |
730 | ||
731 | case V4L2_CID_DIGITAL_GAIN: | |
732 | ret = ov5675_update_digital_gain(ov5675, ctrl->val); | |
733 | break; | |
734 | ||
735 | case V4L2_CID_EXPOSURE: | |
ab3d4b41 BC |
736 | /* 4 least significant bits of expsoure are fractional part |
737 | * val = val << 4 | |
738 | * for ov5675, the unit of exposure is differnt from other | |
739 | * OmniVision sensors, its exposure value is twice of the | |
740 | * register value, the exposure should be divided by 2 before | |
741 | * set register, e.g. val << 3. | |
742 | */ | |
bf27502b ST |
743 | ret = ov5675_write_reg(ov5675, OV5675_REG_EXPOSURE, |
744 | OV5675_REG_VALUE_24BIT, ctrl->val << 3); | |
745 | break; | |
746 | ||
747 | case V4L2_CID_VBLANK: | |
748 | ret = ov5675_write_reg(ov5675, OV5675_REG_VTS, | |
749 | OV5675_REG_VALUE_16BIT, | |
750 | ov5675->cur_mode->height + ctrl->val + | |
751 | 10); | |
752 | break; | |
753 | ||
754 | case V4L2_CID_TEST_PATTERN: | |
755 | ret = ov5675_test_pattern(ov5675, ctrl->val); | |
756 | break; | |
757 | ||
e8882e1b ST |
758 | case V4L2_CID_HFLIP: |
759 | ov5675_set_ctrl_hflip(ov5675, ctrl->val); | |
760 | break; | |
761 | ||
762 | case V4L2_CID_VFLIP: | |
763 | ov5675_set_ctrl_vflip(ov5675, ctrl->val); | |
764 | break; | |
765 | ||
bf27502b ST |
766 | default: |
767 | ret = -EINVAL; | |
768 | break; | |
769 | } | |
770 | ||
771 | pm_runtime_put(&client->dev); | |
772 | ||
773 | return ret; | |
774 | } | |
775 | ||
776 | static const struct v4l2_ctrl_ops ov5675_ctrl_ops = { | |
777 | .s_ctrl = ov5675_set_ctrl, | |
778 | }; | |
779 | ||
780 | static int ov5675_init_controls(struct ov5675 *ov5675) | |
781 | { | |
c8aa2111 QS |
782 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); |
783 | struct v4l2_fwnode_device_properties props; | |
bf27502b ST |
784 | struct v4l2_ctrl_handler *ctrl_hdlr; |
785 | s64 exposure_max, h_blank; | |
786 | int ret; | |
787 | ||
788 | ctrl_hdlr = &ov5675->ctrl_handler; | |
c8aa2111 | 789 | ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10); |
bf27502b ST |
790 | if (ret) |
791 | return ret; | |
792 | ||
793 | ctrl_hdlr->lock = &ov5675->mutex; | |
794 | ov5675->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &ov5675_ctrl_ops, | |
795 | V4L2_CID_LINK_FREQ, | |
796 | ARRAY_SIZE(link_freq_menu_items) - 1, | |
797 | 0, link_freq_menu_items); | |
798 | if (ov5675->link_freq) | |
799 | ov5675->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; | |
800 | ||
801 | ov5675->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, | |
802 | V4L2_CID_PIXEL_RATE, 0, | |
803 | to_pixel_rate(OV5675_LINK_FREQ_900MBPS), | |
804 | 1, | |
805 | to_pixel_rate(OV5675_LINK_FREQ_900MBPS)); | |
806 | ov5675->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, | |
807 | V4L2_CID_VBLANK, | |
808 | ov5675->cur_mode->vts_min - ov5675->cur_mode->height, | |
809 | OV5675_VTS_MAX - ov5675->cur_mode->height, 1, | |
810 | ov5675->cur_mode->vts_def - ov5675->cur_mode->height); | |
811 | h_blank = to_pixels_per_line(ov5675->cur_mode->hts, | |
812 | ov5675->cur_mode->link_freq_index) - ov5675->cur_mode->width; | |
813 | ov5675->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, | |
814 | V4L2_CID_HBLANK, h_blank, h_blank, 1, | |
815 | h_blank); | |
816 | if (ov5675->hblank) | |
817 | ov5675->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; | |
818 | ||
819 | v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, | |
820 | OV5675_ANAL_GAIN_MIN, OV5675_ANAL_GAIN_MAX, | |
821 | OV5675_ANAL_GAIN_STEP, OV5675_ANAL_GAIN_MIN); | |
822 | v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, V4L2_CID_DIGITAL_GAIN, | |
823 | OV5675_DGTL_GAIN_MIN, OV5675_DGTL_GAIN_MAX, | |
824 | OV5675_DGTL_GAIN_STEP, OV5675_DGTL_GAIN_DEFAULT); | |
ab3d4b41 | 825 | exposure_max = (ov5675->cur_mode->vts_def - OV5675_EXPOSURE_MAX_MARGIN); |
bf27502b ST |
826 | ov5675->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, |
827 | V4L2_CID_EXPOSURE, | |
828 | OV5675_EXPOSURE_MIN, exposure_max, | |
829 | OV5675_EXPOSURE_STEP, | |
830 | exposure_max); | |
831 | v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov5675_ctrl_ops, | |
832 | V4L2_CID_TEST_PATTERN, | |
833 | ARRAY_SIZE(ov5675_test_pattern_menu) - 1, | |
834 | 0, 0, ov5675_test_pattern_menu); | |
e8882e1b ST |
835 | v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, |
836 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
837 | v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, | |
838 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
839 | ||
dd74ed6c SX |
840 | if (ctrl_hdlr->error) { |
841 | v4l2_ctrl_handler_free(ctrl_hdlr); | |
bf27502b | 842 | return ctrl_hdlr->error; |
dd74ed6c | 843 | } |
bf27502b | 844 | |
c8aa2111 QS |
845 | ret = v4l2_fwnode_device_parse(&client->dev, &props); |
846 | if (ret) | |
847 | goto error; | |
848 | ||
849 | ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov5675_ctrl_ops, | |
850 | &props); | |
851 | if (ret) | |
852 | goto error; | |
853 | ||
bf27502b ST |
854 | ov5675->sd.ctrl_handler = ctrl_hdlr; |
855 | ||
856 | return 0; | |
c8aa2111 QS |
857 | |
858 | error: | |
859 | v4l2_ctrl_handler_free(ctrl_hdlr); | |
860 | ||
861 | return ret; | |
bf27502b ST |
862 | } |
863 | ||
864 | static void ov5675_update_pad_format(const struct ov5675_mode *mode, | |
865 | struct v4l2_mbus_framefmt *fmt) | |
866 | { | |
867 | fmt->width = mode->width; | |
868 | fmt->height = mode->height; | |
869 | fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; | |
870 | fmt->field = V4L2_FIELD_NONE; | |
871 | } | |
872 | ||
5525fd86 BC |
873 | static int ov5675_identify_module(struct ov5675 *ov5675) |
874 | { | |
875 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
876 | int ret; | |
877 | u32 val; | |
878 | ||
879 | if (ov5675->identified) | |
880 | return 0; | |
881 | ||
882 | ret = ov5675_read_reg(ov5675, OV5675_REG_CHIP_ID, | |
883 | OV5675_REG_VALUE_24BIT, &val); | |
884 | if (ret) | |
885 | return ret; | |
886 | ||
887 | if (val != OV5675_CHIP_ID) { | |
888 | dev_err(&client->dev, "chip id mismatch: %x!=%x", | |
889 | OV5675_CHIP_ID, val); | |
890 | return -ENXIO; | |
891 | } | |
892 | ||
893 | ov5675->identified = true; | |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
bf27502b ST |
898 | static int ov5675_start_streaming(struct ov5675 *ov5675) |
899 | { | |
900 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
901 | const struct ov5675_reg_list *reg_list; | |
902 | int link_freq_index, ret; | |
903 | ||
5525fd86 BC |
904 | ret = ov5675_identify_module(ov5675); |
905 | if (ret) | |
906 | return ret; | |
907 | ||
bf27502b ST |
908 | link_freq_index = ov5675->cur_mode->link_freq_index; |
909 | reg_list = &link_freq_configs[link_freq_index].reg_list; | |
910 | ret = ov5675_write_reg_list(ov5675, reg_list); | |
911 | if (ret) { | |
912 | dev_err(&client->dev, "failed to set plls"); | |
913 | return ret; | |
914 | } | |
915 | ||
916 | reg_list = &ov5675->cur_mode->reg_list; | |
917 | ret = ov5675_write_reg_list(ov5675, reg_list); | |
918 | if (ret) { | |
919 | dev_err(&client->dev, "failed to set mode"); | |
920 | return ret; | |
921 | } | |
922 | ||
923 | ret = __v4l2_ctrl_handler_setup(ov5675->sd.ctrl_handler); | |
924 | if (ret) | |
925 | return ret; | |
926 | ||
927 | ret = ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT, | |
928 | OV5675_REG_VALUE_08BIT, OV5675_MODE_STREAMING); | |
929 | if (ret) { | |
930 | dev_err(&client->dev, "failed to set stream"); | |
931 | return ret; | |
932 | } | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | static void ov5675_stop_streaming(struct ov5675 *ov5675) | |
938 | { | |
939 | struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); | |
940 | ||
941 | if (ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT, | |
942 | OV5675_REG_VALUE_08BIT, OV5675_MODE_STANDBY)) | |
943 | dev_err(&client->dev, "failed to set stream"); | |
944 | } | |
945 | ||
946 | static int ov5675_set_stream(struct v4l2_subdev *sd, int enable) | |
947 | { | |
948 | struct ov5675 *ov5675 = to_ov5675(sd); | |
949 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
950 | int ret = 0; | |
951 | ||
952 | if (ov5675->streaming == enable) | |
953 | return 0; | |
954 | ||
955 | mutex_lock(&ov5675->mutex); | |
956 | if (enable) { | |
f236bb24 | 957 | ret = pm_runtime_resume_and_get(&client->dev); |
bf27502b | 958 | if (ret < 0) { |
bf27502b ST |
959 | mutex_unlock(&ov5675->mutex); |
960 | return ret; | |
961 | } | |
962 | ||
963 | ret = ov5675_start_streaming(ov5675); | |
964 | if (ret) { | |
965 | enable = 0; | |
966 | ov5675_stop_streaming(ov5675); | |
967 | pm_runtime_put(&client->dev); | |
968 | } | |
969 | } else { | |
970 | ov5675_stop_streaming(ov5675); | |
971 | pm_runtime_put(&client->dev); | |
972 | } | |
973 | ||
974 | ov5675->streaming = enable; | |
975 | mutex_unlock(&ov5675->mutex); | |
976 | ||
977 | return ret; | |
978 | } | |
979 | ||
49d9ad71 QS |
980 | static int ov5675_power_off(struct device *dev) |
981 | { | |
982 | /* 512 xvclk cycles after the last SCCB transation or MIPI frame end */ | |
983 | u32 delay_us = DIV_ROUND_UP(512, OV5675_XVCLK_19_2 / 1000 / 1000); | |
984 | struct v4l2_subdev *sd = dev_get_drvdata(dev); | |
985 | struct ov5675 *ov5675 = to_ov5675(sd); | |
986 | ||
987 | usleep_range(delay_us, delay_us * 2); | |
988 | ||
989 | clk_disable_unprepare(ov5675->xvclk); | |
990 | gpiod_set_value_cansleep(ov5675->reset_gpio, 1); | |
991 | regulator_bulk_disable(OV5675_NUM_SUPPLIES, ov5675->supplies); | |
992 | ||
993 | return 0; | |
994 | } | |
995 | ||
996 | static int ov5675_power_on(struct device *dev) | |
997 | { | |
998 | u32 delay_us = DIV_ROUND_UP(8192, OV5675_XVCLK_19_2 / 1000 / 1000); | |
999 | struct v4l2_subdev *sd = dev_get_drvdata(dev); | |
1000 | struct ov5675 *ov5675 = to_ov5675(sd); | |
1001 | int ret; | |
1002 | ||
1003 | ret = clk_prepare_enable(ov5675->xvclk); | |
1004 | if (ret < 0) { | |
1005 | dev_err(dev, "failed to enable xvclk: %d\n", ret); | |
1006 | return ret; | |
1007 | } | |
1008 | ||
1009 | gpiod_set_value_cansleep(ov5675->reset_gpio, 1); | |
1010 | ||
1011 | ret = regulator_bulk_enable(OV5675_NUM_SUPPLIES, ov5675->supplies); | |
1012 | if (ret) { | |
1013 | clk_disable_unprepare(ov5675->xvclk); | |
1014 | return ret; | |
1015 | } | |
1016 | ||
1017 | /* Reset pulse should be at least 2ms and reset gpio released only once | |
1018 | * regulators are stable. | |
1019 | */ | |
1020 | usleep_range(2000, 2200); | |
1021 | ||
1022 | gpiod_set_value_cansleep(ov5675->reset_gpio, 0); | |
1023 | ||
1024 | /* 8192 xvclk cycles prior to the first SCCB transation */ | |
1025 | usleep_range(delay_us, delay_us * 2); | |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
bf27502b ST |
1030 | static int __maybe_unused ov5675_suspend(struct device *dev) |
1031 | { | |
1a747125 | 1032 | struct v4l2_subdev *sd = dev_get_drvdata(dev); |
bf27502b ST |
1033 | struct ov5675 *ov5675 = to_ov5675(sd); |
1034 | ||
1035 | mutex_lock(&ov5675->mutex); | |
1036 | if (ov5675->streaming) | |
1037 | ov5675_stop_streaming(ov5675); | |
1038 | ||
1039 | mutex_unlock(&ov5675->mutex); | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | static int __maybe_unused ov5675_resume(struct device *dev) | |
1045 | { | |
1a747125 | 1046 | struct v4l2_subdev *sd = dev_get_drvdata(dev); |
bf27502b ST |
1047 | struct ov5675 *ov5675 = to_ov5675(sd); |
1048 | int ret; | |
1049 | ||
1050 | mutex_lock(&ov5675->mutex); | |
1051 | if (ov5675->streaming) { | |
1052 | ret = ov5675_start_streaming(ov5675); | |
1053 | if (ret) { | |
1054 | ov5675->streaming = false; | |
1055 | ov5675_stop_streaming(ov5675); | |
1056 | mutex_unlock(&ov5675->mutex); | |
1057 | return ret; | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | mutex_unlock(&ov5675->mutex); | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | static int ov5675_set_format(struct v4l2_subdev *sd, | |
0d346d2a | 1067 | struct v4l2_subdev_state *sd_state, |
bf27502b ST |
1068 | struct v4l2_subdev_format *fmt) |
1069 | { | |
1070 | struct ov5675 *ov5675 = to_ov5675(sd); | |
1071 | const struct ov5675_mode *mode; | |
1072 | s32 vblank_def, h_blank; | |
1073 | ||
1074 | mode = v4l2_find_nearest_size(supported_modes, | |
1075 | ARRAY_SIZE(supported_modes), width, | |
1076 | height, fmt->format.width, | |
1077 | fmt->format.height); | |
1078 | ||
1079 | mutex_lock(&ov5675->mutex); | |
1080 | ov5675_update_pad_format(mode, &fmt->format); | |
1081 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
0d346d2a | 1082 | *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format; |
bf27502b ST |
1083 | } else { |
1084 | ov5675->cur_mode = mode; | |
1085 | __v4l2_ctrl_s_ctrl(ov5675->link_freq, mode->link_freq_index); | |
1086 | __v4l2_ctrl_s_ctrl_int64(ov5675->pixel_rate, | |
1087 | to_pixel_rate(mode->link_freq_index)); | |
1088 | ||
1089 | /* Update limits and set FPS to default */ | |
1090 | vblank_def = mode->vts_def - mode->height; | |
1091 | __v4l2_ctrl_modify_range(ov5675->vblank, | |
1092 | mode->vts_min - mode->height, | |
1093 | OV5675_VTS_MAX - mode->height, 1, | |
1094 | vblank_def); | |
1095 | __v4l2_ctrl_s_ctrl(ov5675->vblank, vblank_def); | |
1096 | h_blank = to_pixels_per_line(mode->hts, mode->link_freq_index) - | |
1097 | mode->width; | |
1098 | __v4l2_ctrl_modify_range(ov5675->hblank, h_blank, h_blank, 1, | |
1099 | h_blank); | |
1100 | } | |
1101 | ||
1102 | mutex_unlock(&ov5675->mutex); | |
1103 | ||
1104 | return 0; | |
1105 | } | |
1106 | ||
1107 | static int ov5675_get_format(struct v4l2_subdev *sd, | |
0d346d2a | 1108 | struct v4l2_subdev_state *sd_state, |
bf27502b ST |
1109 | struct v4l2_subdev_format *fmt) |
1110 | { | |
1111 | struct ov5675 *ov5675 = to_ov5675(sd); | |
1112 | ||
1113 | mutex_lock(&ov5675->mutex); | |
1114 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) | |
0d346d2a TV |
1115 | fmt->format = *v4l2_subdev_get_try_format(&ov5675->sd, |
1116 | sd_state, | |
bf27502b ST |
1117 | fmt->pad); |
1118 | else | |
1119 | ov5675_update_pad_format(ov5675->cur_mode, &fmt->format); | |
1120 | ||
1121 | mutex_unlock(&ov5675->mutex); | |
1122 | ||
1123 | return 0; | |
1124 | } | |
1125 | ||
221827ee QS |
1126 | static int ov5675_get_selection(struct v4l2_subdev *sd, |
1127 | struct v4l2_subdev_state *state, | |
1128 | struct v4l2_subdev_selection *sel) | |
1129 | { | |
1130 | if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) | |
1131 | return -EINVAL; | |
1132 | ||
1133 | switch (sel->target) { | |
1134 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
1135 | sel->r.top = 0; | |
1136 | sel->r.left = 0; | |
1137 | sel->r.width = 2624; | |
1138 | sel->r.height = 2000; | |
1139 | return 0; | |
1140 | case V4L2_SEL_TGT_CROP: | |
1141 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
1142 | sel->r.top = 16; | |
1143 | sel->r.left = 16; | |
1144 | sel->r.width = 2592; | |
1145 | sel->r.height = 1944; | |
1146 | return 0; | |
1147 | } | |
1148 | return -EINVAL; | |
1149 | } | |
1150 | ||
bf27502b | 1151 | static int ov5675_enum_mbus_code(struct v4l2_subdev *sd, |
0d346d2a | 1152 | struct v4l2_subdev_state *sd_state, |
bf27502b ST |
1153 | struct v4l2_subdev_mbus_code_enum *code) |
1154 | { | |
1155 | if (code->index > 0) | |
1156 | return -EINVAL; | |
1157 | ||
1158 | code->code = MEDIA_BUS_FMT_SGRBG10_1X10; | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int ov5675_enum_frame_size(struct v4l2_subdev *sd, | |
0d346d2a | 1164 | struct v4l2_subdev_state *sd_state, |
bf27502b ST |
1165 | struct v4l2_subdev_frame_size_enum *fse) |
1166 | { | |
1167 | if (fse->index >= ARRAY_SIZE(supported_modes)) | |
1168 | return -EINVAL; | |
1169 | ||
1170 | if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) | |
1171 | return -EINVAL; | |
1172 | ||
1173 | fse->min_width = supported_modes[fse->index].width; | |
1174 | fse->max_width = fse->min_width; | |
1175 | fse->min_height = supported_modes[fse->index].height; | |
1176 | fse->max_height = fse->min_height; | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | static int ov5675_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
1182 | { | |
1183 | struct ov5675 *ov5675 = to_ov5675(sd); | |
1184 | ||
1185 | mutex_lock(&ov5675->mutex); | |
1186 | ov5675_update_pad_format(&supported_modes[0], | |
0d346d2a | 1187 | v4l2_subdev_get_try_format(sd, fh->state, 0)); |
bf27502b ST |
1188 | mutex_unlock(&ov5675->mutex); |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | static const struct v4l2_subdev_video_ops ov5675_video_ops = { | |
1194 | .s_stream = ov5675_set_stream, | |
1195 | }; | |
1196 | ||
1197 | static const struct v4l2_subdev_pad_ops ov5675_pad_ops = { | |
1198 | .set_fmt = ov5675_set_format, | |
1199 | .get_fmt = ov5675_get_format, | |
221827ee | 1200 | .get_selection = ov5675_get_selection, |
bf27502b ST |
1201 | .enum_mbus_code = ov5675_enum_mbus_code, |
1202 | .enum_frame_size = ov5675_enum_frame_size, | |
1203 | }; | |
1204 | ||
1205 | static const struct v4l2_subdev_ops ov5675_subdev_ops = { | |
1206 | .video = &ov5675_video_ops, | |
1207 | .pad = &ov5675_pad_ops, | |
1208 | }; | |
1209 | ||
1210 | static const struct media_entity_operations ov5675_subdev_entity_ops = { | |
1211 | .link_validate = v4l2_subdev_link_validate, | |
1212 | }; | |
1213 | ||
1214 | static const struct v4l2_subdev_internal_ops ov5675_internal_ops = { | |
1215 | .open = ov5675_open, | |
1216 | }; | |
1217 | ||
49d9ad71 | 1218 | static int ov5675_get_hwcfg(struct ov5675 *ov5675, struct device *dev) |
bf27502b ST |
1219 | { |
1220 | struct fwnode_handle *ep; | |
1221 | struct fwnode_handle *fwnode = dev_fwnode(dev); | |
1222 | struct v4l2_fwnode_endpoint bus_cfg = { | |
1223 | .bus_type = V4L2_MBUS_CSI2_DPHY | |
1224 | }; | |
49d9ad71 | 1225 | u32 xvclk_rate; |
bf27502b ST |
1226 | int ret; |
1227 | unsigned int i, j; | |
1228 | ||
1229 | if (!fwnode) | |
1230 | return -ENXIO; | |
1231 | ||
49d9ad71 QS |
1232 | ov5675->xvclk = devm_clk_get_optional(dev, NULL); |
1233 | if (IS_ERR(ov5675->xvclk)) | |
1234 | return dev_err_probe(dev, PTR_ERR(ov5675->xvclk), | |
1235 | "failed to get xvclk: %ld\n", | |
1236 | PTR_ERR(ov5675->xvclk)); | |
bf27502b | 1237 | |
49d9ad71 QS |
1238 | if (ov5675->xvclk) { |
1239 | xvclk_rate = clk_get_rate(ov5675->xvclk); | |
1240 | } else { | |
1241 | ret = fwnode_property_read_u32(fwnode, "clock-frequency", | |
1242 | &xvclk_rate); | |
1243 | ||
1244 | if (ret) { | |
1245 | dev_err(dev, "can't get clock frequency"); | |
1246 | return ret; | |
1247 | } | |
bf27502b ST |
1248 | } |
1249 | ||
49d9ad71 QS |
1250 | if (xvclk_rate != OV5675_XVCLK_19_2) { |
1251 | dev_err(dev, "external clock rate %u is unsupported", | |
1252 | xvclk_rate); | |
bf27502b ST |
1253 | return -EINVAL; |
1254 | } | |
1255 | ||
49d9ad71 QS |
1256 | ov5675->reset_gpio = devm_gpiod_get_optional(dev, "reset", |
1257 | GPIOD_OUT_HIGH); | |
1258 | if (IS_ERR(ov5675->reset_gpio)) { | |
1259 | ret = PTR_ERR(ov5675->reset_gpio); | |
1260 | dev_err(dev, "failed to get reset-gpios: %d\n", ret); | |
1261 | return ret; | |
1262 | } | |
1263 | ||
1264 | for (i = 0; i < OV5675_NUM_SUPPLIES; i++) | |
1265 | ov5675->supplies[i].supply = ov5675_supply_names[i]; | |
1266 | ||
1267 | ret = devm_regulator_bulk_get(dev, OV5675_NUM_SUPPLIES, | |
1268 | ov5675->supplies); | |
1269 | if (ret) | |
1270 | return ret; | |
1271 | ||
bf27502b ST |
1272 | ep = fwnode_graph_get_next_endpoint(fwnode, NULL); |
1273 | if (!ep) | |
1274 | return -ENXIO; | |
1275 | ||
1276 | ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); | |
1277 | fwnode_handle_put(ep); | |
1278 | if (ret) | |
1279 | return ret; | |
1280 | ||
1281 | if (bus_cfg.bus.mipi_csi2.num_data_lanes != OV5675_DATA_LANES) { | |
1282 | dev_err(dev, "number of CSI2 data lanes %d is not supported", | |
1283 | bus_cfg.bus.mipi_csi2.num_data_lanes); | |
1284 | ret = -EINVAL; | |
1285 | goto check_hwcfg_error; | |
1286 | } | |
1287 | ||
1288 | if (!bus_cfg.nr_of_link_frequencies) { | |
1289 | dev_err(dev, "no link frequencies defined"); | |
1290 | ret = -EINVAL; | |
1291 | goto check_hwcfg_error; | |
1292 | } | |
1293 | ||
1294 | for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); i++) { | |
1295 | for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) { | |
1296 | if (link_freq_menu_items[i] == | |
1297 | bus_cfg.link_frequencies[j]) | |
1298 | break; | |
1299 | } | |
1300 | ||
1301 | if (j == bus_cfg.nr_of_link_frequencies) { | |
1302 | dev_err(dev, "no link frequency %lld supported", | |
1303 | link_freq_menu_items[i]); | |
1304 | ret = -EINVAL; | |
1305 | goto check_hwcfg_error; | |
1306 | } | |
1307 | } | |
1308 | ||
1309 | check_hwcfg_error: | |
1310 | v4l2_fwnode_endpoint_free(&bus_cfg); | |
1311 | ||
1312 | return ret; | |
1313 | } | |
1314 | ||
ed5c2f5f | 1315 | static void ov5675_remove(struct i2c_client *client) |
bf27502b ST |
1316 | { |
1317 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1318 | struct ov5675 *ov5675 = to_ov5675(sd); | |
1319 | ||
1320 | v4l2_async_unregister_subdev(sd); | |
1321 | media_entity_cleanup(&sd->entity); | |
1322 | v4l2_ctrl_handler_free(sd->ctrl_handler); | |
1323 | pm_runtime_disable(&client->dev); | |
1324 | mutex_destroy(&ov5675->mutex); | |
49d9ad71 QS |
1325 | |
1326 | if (!pm_runtime_status_suspended(&client->dev)) | |
1327 | ov5675_power_off(&client->dev); | |
1328 | pm_runtime_set_suspended(&client->dev); | |
bf27502b ST |
1329 | } |
1330 | ||
1331 | static int ov5675_probe(struct i2c_client *client) | |
1332 | { | |
1333 | struct ov5675 *ov5675; | |
5525fd86 | 1334 | bool full_power; |
bf27502b ST |
1335 | int ret; |
1336 | ||
49d9ad71 QS |
1337 | ov5675 = devm_kzalloc(&client->dev, sizeof(*ov5675), GFP_KERNEL); |
1338 | if (!ov5675) | |
1339 | return -ENOMEM; | |
1340 | ||
1341 | ret = ov5675_get_hwcfg(ov5675, &client->dev); | |
bf27502b | 1342 | if (ret) { |
49d9ad71 | 1343 | dev_err(&client->dev, "failed to get HW configuration: %d", |
bf27502b ST |
1344 | ret); |
1345 | return ret; | |
1346 | } | |
1347 | ||
bf27502b | 1348 | v4l2_i2c_subdev_init(&ov5675->sd, client, &ov5675_subdev_ops); |
5525fd86 | 1349 | |
49d9ad71 QS |
1350 | ret = ov5675_power_on(&client->dev); |
1351 | if (ret) { | |
1352 | dev_err(&client->dev, "failed to power on: %d\n", ret); | |
1353 | return ret; | |
1354 | } | |
1355 | ||
5525fd86 BC |
1356 | full_power = acpi_dev_state_d0(&client->dev); |
1357 | if (full_power) { | |
1358 | ret = ov5675_identify_module(ov5675); | |
1359 | if (ret) { | |
1360 | dev_err(&client->dev, "failed to find sensor: %d", ret); | |
49d9ad71 | 1361 | goto probe_power_off; |
5525fd86 | 1362 | } |
bf27502b ST |
1363 | } |
1364 | ||
1365 | mutex_init(&ov5675->mutex); | |
1366 | ov5675->cur_mode = &supported_modes[0]; | |
1367 | ret = ov5675_init_controls(ov5675); | |
1368 | if (ret) { | |
1369 | dev_err(&client->dev, "failed to init controls: %d", ret); | |
1370 | goto probe_error_v4l2_ctrl_handler_free; | |
1371 | } | |
1372 | ||
1373 | ov5675->sd.internal_ops = &ov5675_internal_ops; | |
1374 | ov5675->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
1375 | ov5675->sd.entity.ops = &ov5675_subdev_entity_ops; | |
1376 | ov5675->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; | |
1377 | ov5675->pad.flags = MEDIA_PAD_FL_SOURCE; | |
1378 | ret = media_entity_pads_init(&ov5675->sd.entity, 1, &ov5675->pad); | |
1379 | if (ret) { | |
1380 | dev_err(&client->dev, "failed to init entity pads: %d", ret); | |
1381 | goto probe_error_v4l2_ctrl_handler_free; | |
1382 | } | |
1383 | ||
15786f7b | 1384 | ret = v4l2_async_register_subdev_sensor(&ov5675->sd); |
bf27502b ST |
1385 | if (ret < 0) { |
1386 | dev_err(&client->dev, "failed to register V4L2 subdev: %d", | |
1387 | ret); | |
1388 | goto probe_error_media_entity_cleanup; | |
1389 | } | |
1390 | ||
5525fd86 BC |
1391 | /* Set the device's state to active if it's in D0 state. */ |
1392 | if (full_power) | |
1393 | pm_runtime_set_active(&client->dev); | |
bf27502b ST |
1394 | pm_runtime_enable(&client->dev); |
1395 | pm_runtime_idle(&client->dev); | |
1396 | ||
1397 | return 0; | |
1398 | ||
1399 | probe_error_media_entity_cleanup: | |
1400 | media_entity_cleanup(&ov5675->sd.entity); | |
1401 | ||
1402 | probe_error_v4l2_ctrl_handler_free: | |
1403 | v4l2_ctrl_handler_free(ov5675->sd.ctrl_handler); | |
1404 | mutex_destroy(&ov5675->mutex); | |
49d9ad71 QS |
1405 | probe_power_off: |
1406 | ov5675_power_off(&client->dev); | |
bf27502b ST |
1407 | |
1408 | return ret; | |
1409 | } | |
1410 | ||
1411 | static const struct dev_pm_ops ov5675_pm_ops = { | |
1412 | SET_SYSTEM_SLEEP_PM_OPS(ov5675_suspend, ov5675_resume) | |
49d9ad71 | 1413 | SET_RUNTIME_PM_OPS(ov5675_power_off, ov5675_power_on, NULL) |
bf27502b ST |
1414 | }; |
1415 | ||
1416 | #ifdef CONFIG_ACPI | |
1417 | static const struct acpi_device_id ov5675_acpi_ids[] = { | |
1418 | {"OVTI5675"}, | |
1419 | {} | |
1420 | }; | |
1421 | ||
1422 | MODULE_DEVICE_TABLE(acpi, ov5675_acpi_ids); | |
1423 | #endif | |
1424 | ||
49d9ad71 QS |
1425 | static const struct of_device_id ov5675_of_match[] = { |
1426 | { .compatible = "ovti,ov5675", }, | |
1427 | { /* sentinel */ }, | |
1428 | }; | |
1429 | MODULE_DEVICE_TABLE(of, ov5675_of_match); | |
1430 | ||
bf27502b ST |
1431 | static struct i2c_driver ov5675_i2c_driver = { |
1432 | .driver = { | |
1433 | .name = "ov5675", | |
1434 | .pm = &ov5675_pm_ops, | |
1435 | .acpi_match_table = ACPI_PTR(ov5675_acpi_ids), | |
49d9ad71 | 1436 | .of_match_table = ov5675_of_match, |
bf27502b ST |
1437 | }, |
1438 | .probe_new = ov5675_probe, | |
1439 | .remove = ov5675_remove, | |
5525fd86 | 1440 | .flags = I2C_DRV_ACPI_WAIVE_D0_PROBE, |
bf27502b ST |
1441 | }; |
1442 | ||
1443 | module_i2c_driver(ov5675_i2c_driver); | |
1444 | ||
1445 | MODULE_AUTHOR("Shawn Tu <shawnx.tu@intel.com>"); | |
1446 | MODULE_DESCRIPTION("OmniVision OV5675 sensor driver"); | |
1447 | MODULE_LICENSE("GPL v2"); |