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f2efa4ee | 1 | // SPDX-License-Identifier: GPL-2.0 |
eaffc3a7 | 2 | // Copyright (c) 2020-2021 Intel Corporation. |
f2efa4ee WY |
3 | |
4 | #include <asm/unaligned.h> | |
5 | #include <linux/acpi.h> | |
6 | #include <linux/delay.h> | |
7 | #include <linux/i2c.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/pm_runtime.h> | |
5a771b35 | 10 | #include <linux/version.h> |
f2efa4ee WY |
11 | #include <media/v4l2-ctrls.h> |
12 | #include <media/v4l2-device.h> | |
13 | #include <media/v4l2-fwnode.h> | |
eaffc3a7 | 14 | #include "power_ctrl_logic.h" |
5a771b35 | 15 | #include <linux/vsc.h> |
f2efa4ee | 16 | |
3074d1c6 | 17 | #define OV01A1S_LINK_FREQ_400MHZ 400000000ULL |
af60d6fc | 18 | #define OV01A1S_SCLK 40000000LL |
f2efa4ee WY |
19 | #define OV01A1S_MCLK 19200000 |
20 | #define OV01A1S_DATA_LANES 1 | |
21 | #define OV01A1S_RGB_DEPTH 10 | |
22 | ||
23 | #define OV01A1S_REG_CHIP_ID 0x300a | |
24 | #define OV01A1S_CHIP_ID 0x560141 | |
25 | ||
26 | #define OV01A1S_REG_MODE_SELECT 0x0100 | |
27 | #define OV01A1S_MODE_STANDBY 0x00 | |
28 | #define OV01A1S_MODE_STREAMING 0x01 | |
29 | ||
30 | /* vertical-timings from sensor */ | |
31 | #define OV01A1S_REG_VTS 0x380e | |
32 | #define OV01A1S_VTS_DEF 0x0380 | |
33 | #define OV01A1S_VTS_MIN 0x0380 | |
34 | #define OV01A1S_VTS_MAX 0xffff | |
35 | ||
f2efa4ee WY |
36 | /* Exposure controls from sensor */ |
37 | #define OV01A1S_REG_EXPOSURE 0x3501 | |
38 | #define OV01A1S_EXPOSURE_MIN 4 | |
39 | #define OV01A1S_EXPOSURE_MAX_MARGIN 8 | |
40 | #define OV01A1S_EXPOSURE_STEP 1 | |
41 | ||
42 | /* Analog gain controls from sensor */ | |
43 | #define OV01A1S_REG_ANALOG_GAIN 0x3508 | |
44 | #define OV01A1S_ANAL_GAIN_MIN 0x100 | |
3074d1c6 | 45 | #define OV01A1S_ANAL_GAIN_MAX 0xffff |
f2efa4ee WY |
46 | #define OV01A1S_ANAL_GAIN_STEP 1 |
47 | ||
48 | /* Digital gain controls from sensor */ | |
3074d1c6 WY |
49 | #define OV01A1S_REG_DIGILAL_GAIN_B 0x350A |
50 | #define OV01A1S_REG_DIGITAL_GAIN_GB 0x3510 | |
51 | #define OV01A1S_REG_DIGITAL_GAIN_GR 0x3513 | |
52 | #define OV01A1S_REG_DIGITAL_GAIN_R 0x3516 | |
f2efa4ee | 53 | #define OV01A1S_DGTL_GAIN_MIN 0 |
3074d1c6 | 54 | #define OV01A1S_DGTL_GAIN_MAX 0x3ffff |
f2efa4ee WY |
55 | #define OV01A1S_DGTL_GAIN_STEP 1 |
56 | #define OV01A1S_DGTL_GAIN_DEFAULT 1024 | |
57 | ||
58 | /* Test Pattern Control */ | |
59 | #define OV01A1S_REG_TEST_PATTERN 0x4503 | |
60 | #define OV01A1S_TEST_PATTERN_ENABLE BIT(7) | |
61 | #define OV01A1S_TEST_PATTERN_BAR_SHIFT 0 | |
62 | ||
63 | enum { | |
64 | OV01A1S_LINK_FREQ_400MHZ_INDEX, | |
65 | }; | |
66 | ||
67 | struct ov01a1s_reg { | |
68 | u16 address; | |
69 | u8 val; | |
70 | }; | |
71 | ||
72 | struct ov01a1s_reg_list { | |
73 | u32 num_of_regs; | |
74 | const struct ov01a1s_reg *regs; | |
75 | }; | |
76 | ||
77 | struct ov01a1s_link_freq_config { | |
78 | const struct ov01a1s_reg_list reg_list; | |
79 | }; | |
80 | ||
81 | struct ov01a1s_mode { | |
82 | /* Frame width in pixels */ | |
83 | u32 width; | |
84 | ||
85 | /* Frame height in pixels */ | |
86 | u32 height; | |
87 | ||
88 | /* Horizontal timining size */ | |
89 | u32 hts; | |
90 | ||
91 | /* Default vertical timining size */ | |
92 | u32 vts_def; | |
93 | ||
94 | /* Min vertical timining size */ | |
95 | u32 vts_min; | |
96 | ||
97 | /* Link frequency needed for this resolution */ | |
98 | u32 link_freq_index; | |
99 | ||
100 | /* Sensor register settings for this resolution */ | |
101 | const struct ov01a1s_reg_list reg_list; | |
102 | }; | |
103 | ||
104 | static const struct ov01a1s_reg mipi_data_rate_720mbps[] = { | |
105 | }; | |
106 | ||
f2efa4ee WY |
107 | static const struct ov01a1s_reg sensor_1296x800_setting[] = { |
108 | {0x0103, 0x01}, | |
109 | {0x0302, 0x00}, | |
110 | {0x0303, 0x06}, | |
111 | {0x0304, 0x01}, | |
112 | {0x0305, 0x90}, | |
113 | {0x0306, 0x00}, | |
114 | {0x0308, 0x01}, | |
115 | {0x0309, 0x00}, | |
116 | {0x030c, 0x01}, | |
117 | {0x0322, 0x01}, | |
118 | {0x0323, 0x06}, | |
119 | {0x0324, 0x01}, | |
120 | {0x0325, 0x68}, | |
121 | {0x3002, 0xa1}, | |
122 | {0x301e, 0xf0}, | |
123 | {0x3022, 0x01}, | |
124 | {0x3501, 0x03}, | |
125 | {0x3502, 0x78}, | |
126 | {0x3504, 0x0c}, | |
127 | {0x3508, 0x01}, | |
128 | {0x3509, 0x00}, | |
129 | {0x3601, 0xc0}, | |
130 | {0x3603, 0x71}, | |
131 | {0x3610, 0x68}, | |
132 | {0x3611, 0x86}, | |
133 | {0x3640, 0x10}, | |
134 | {0x3641, 0x80}, | |
135 | {0x3642, 0xdc}, | |
136 | {0x3646, 0x55}, | |
137 | {0x3647, 0x57}, | |
138 | {0x364b, 0x00}, | |
139 | {0x3653, 0x10}, | |
140 | {0x3655, 0x00}, | |
141 | {0x3656, 0x00}, | |
142 | {0x365f, 0x0f}, | |
143 | {0x3661, 0x45}, | |
144 | {0x3662, 0x24}, | |
145 | {0x3663, 0x11}, | |
146 | {0x3664, 0x07}, | |
147 | {0x3709, 0x34}, | |
148 | {0x370b, 0x6f}, | |
149 | {0x3714, 0x22}, | |
150 | {0x371b, 0x27}, | |
151 | {0x371c, 0x67}, | |
152 | {0x371d, 0xa7}, | |
153 | {0x371e, 0xe7}, | |
154 | {0x3730, 0x81}, | |
155 | {0x3733, 0x10}, | |
156 | {0x3734, 0x40}, | |
157 | {0x3737, 0x04}, | |
158 | {0x3739, 0x1c}, | |
159 | {0x3767, 0x00}, | |
160 | {0x376c, 0x81}, | |
161 | {0x3772, 0x14}, | |
162 | {0x37c2, 0x04}, | |
163 | {0x37d8, 0x03}, | |
164 | {0x37d9, 0x0c}, | |
165 | {0x37e0, 0x00}, | |
166 | {0x37e1, 0x08}, | |
167 | {0x37e2, 0x10}, | |
168 | {0x37e3, 0x04}, | |
169 | {0x37e4, 0x04}, | |
170 | {0x37e5, 0x03}, | |
171 | {0x37e6, 0x04}, | |
172 | {0x3800, 0x00}, | |
173 | {0x3801, 0x00}, | |
174 | {0x3802, 0x00}, | |
175 | {0x3803, 0x00}, | |
176 | {0x3804, 0x05}, | |
177 | {0x3805, 0x0f}, | |
178 | {0x3806, 0x03}, | |
179 | {0x3807, 0x2f}, | |
180 | {0x3808, 0x05}, | |
181 | {0x3809, 0x00}, | |
182 | {0x380a, 0x03}, | |
3074d1c6 WY |
183 | {0x380b, 0x1e}, |
184 | {0x380c, 0x05}, | |
185 | {0x380d, 0xd0}, | |
f2efa4ee WY |
186 | {0x380e, 0x03}, |
187 | {0x380f, 0x80}, | |
188 | {0x3810, 0x00}, | |
189 | {0x3811, 0x09}, | |
190 | {0x3812, 0x00}, | |
191 | {0x3813, 0x08}, | |
192 | {0x3814, 0x01}, | |
193 | {0x3815, 0x01}, | |
194 | {0x3816, 0x01}, | |
195 | {0x3817, 0x01}, | |
196 | {0x3820, 0xa8}, | |
197 | {0x3822, 0x03}, | |
198 | {0x3832, 0x28}, | |
199 | {0x3833, 0x10}, | |
200 | {0x3b00, 0x00}, | |
201 | {0x3c80, 0x00}, | |
202 | {0x3c88, 0x02}, | |
203 | {0x3c8c, 0x07}, | |
204 | {0x3c8d, 0x40}, | |
205 | {0x3cc7, 0x80}, | |
206 | {0x4000, 0xc3}, | |
207 | {0x4001, 0xe0}, | |
208 | {0x4003, 0x40}, | |
209 | {0x4008, 0x02}, | |
210 | {0x4009, 0x19}, | |
211 | {0x400a, 0x01}, | |
212 | {0x400b, 0x6c}, | |
213 | {0x4011, 0x00}, | |
214 | {0x4041, 0x00}, | |
215 | {0x4300, 0xff}, | |
216 | {0x4301, 0x00}, | |
217 | {0x4302, 0x0f}, | |
218 | {0x4503, 0x00}, | |
af60d6fc | 219 | {0x4601, 0x50}, |
f2efa4ee WY |
220 | {0x481f, 0x34}, |
221 | {0x4825, 0x33}, | |
af60d6fc | 222 | {0x4837, 0x14}, |
f2efa4ee WY |
223 | {0x4881, 0x40}, |
224 | {0x4883, 0x01}, | |
225 | {0x4890, 0x00}, | |
226 | {0x4901, 0x00}, | |
227 | {0x4902, 0x00}, | |
228 | {0x4b00, 0x2a}, | |
229 | {0x4b0d, 0x00}, | |
230 | {0x450a, 0x04}, | |
231 | {0x450b, 0x00}, | |
f2efa4ee WY |
232 | {0x5000, 0x65}, |
233 | {0x5004, 0x00}, | |
234 | {0x5080, 0x40}, | |
235 | {0x5200, 0x18}, | |
236 | {0x4837, 0x14}, | |
f2efa4ee | 237 | {0x0305, 0xf4}, |
af60d6fc | 238 | {0x0325, 0xc2}, |
f2efa4ee | 239 | {0x3808, 0x05}, |
af60d6fc WY |
240 | {0x3809, 0x10}, |
241 | {0x380a, 0x03}, | |
3074d1c6 | 242 | {0x380b, 0x1e}, |
f2efa4ee | 243 | {0x3810, 0x00}, |
af60d6fc | 244 | {0x3811, 0x00}, |
f2efa4ee | 245 | {0x3812, 0x00}, |
af60d6fc | 246 | {0x3813, 0x09}, |
e36f1e60 | 247 | {0x3820, 0x88}, |
f2efa4ee WY |
248 | {0x373d, 0x24}, |
249 | }; | |
250 | ||
251 | static const char * const ov01a1s_test_pattern_menu[] = { | |
252 | "Disabled", | |
253 | "Color Bar", | |
254 | "Top-Bottom Darker Color Bar", | |
255 | "Right-Left Darker Color Bar", | |
af60d6fc | 256 | "Color Bar type 4", |
f2efa4ee WY |
257 | }; |
258 | ||
259 | static const s64 link_freq_menu_items[] = { | |
260 | OV01A1S_LINK_FREQ_400MHZ, | |
261 | }; | |
262 | ||
263 | static const struct ov01a1s_link_freq_config link_freq_configs[] = { | |
264 | [OV01A1S_LINK_FREQ_400MHZ_INDEX] = { | |
265 | .reg_list = { | |
266 | .num_of_regs = ARRAY_SIZE(mipi_data_rate_720mbps), | |
267 | .regs = mipi_data_rate_720mbps, | |
268 | } | |
269 | }, | |
270 | }; | |
271 | ||
272 | static const struct ov01a1s_mode supported_modes[] = { | |
273 | { | |
274 | .width = 1296, | |
3074d1c6 WY |
275 | .height = 798, |
276 | .hts = 1488, | |
f2efa4ee WY |
277 | .vts_def = OV01A1S_VTS_DEF, |
278 | .vts_min = OV01A1S_VTS_MIN, | |
279 | .reg_list = { | |
280 | .num_of_regs = ARRAY_SIZE(sensor_1296x800_setting), | |
281 | .regs = sensor_1296x800_setting, | |
282 | }, | |
283 | .link_freq_index = OV01A1S_LINK_FREQ_400MHZ_INDEX, | |
284 | }, | |
285 | }; | |
286 | ||
287 | struct ov01a1s { | |
288 | struct v4l2_subdev sd; | |
289 | struct media_pad pad; | |
290 | struct v4l2_ctrl_handler ctrl_handler; | |
291 | ||
292 | /* V4L2 Controls */ | |
293 | struct v4l2_ctrl *link_freq; | |
294 | struct v4l2_ctrl *pixel_rate; | |
295 | struct v4l2_ctrl *vblank; | |
296 | struct v4l2_ctrl *hblank; | |
297 | struct v4l2_ctrl *exposure; | |
298 | ||
299 | /* Current mode */ | |
300 | const struct ov01a1s_mode *cur_mode; | |
301 | ||
302 | /* To serialize asynchronus callbacks */ | |
303 | struct mutex mutex; | |
304 | ||
305 | /* Streaming on/off */ | |
306 | bool streaming; | |
307 | }; | |
308 | ||
309 | static inline struct ov01a1s *to_ov01a1s(struct v4l2_subdev *subdev) | |
310 | { | |
311 | return container_of(subdev, struct ov01a1s, sd); | |
312 | } | |
313 | ||
f2efa4ee WY |
314 | static int ov01a1s_read_reg(struct ov01a1s *ov01a1s, u16 reg, u16 len, u32 *val) |
315 | { | |
316 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
317 | struct i2c_msg msgs[2]; | |
318 | u8 addr_buf[2]; | |
319 | u8 data_buf[4] = {0}; | |
320 | int ret = 0; | |
321 | ||
322 | if (len > sizeof(data_buf)) | |
323 | return -EINVAL; | |
324 | ||
325 | put_unaligned_be16(reg, addr_buf); | |
326 | msgs[0].addr = client->addr; | |
327 | msgs[0].flags = 0; | |
328 | msgs[0].len = sizeof(addr_buf); | |
329 | msgs[0].buf = addr_buf; | |
330 | msgs[1].addr = client->addr; | |
331 | msgs[1].flags = I2C_M_RD; | |
332 | msgs[1].len = len; | |
333 | msgs[1].buf = &data_buf[sizeof(data_buf) - len]; | |
334 | ||
335 | ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); | |
336 | if (ret != ARRAY_SIZE(msgs)) | |
337 | return ret < 0 ? ret : -EIO; | |
338 | ||
339 | *val = get_unaligned_be32(data_buf); | |
340 | ||
341 | return 0; | |
342 | } | |
343 | ||
344 | static int ov01a1s_write_reg(struct ov01a1s *ov01a1s, u16 reg, u16 len, u32 val) | |
345 | { | |
346 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
347 | u8 buf[6]; | |
348 | int ret = 0; | |
349 | ||
350 | if (len > 4) | |
351 | return -EINVAL; | |
352 | ||
353 | put_unaligned_be16(reg, buf); | |
354 | put_unaligned_be32(val << 8 * (4 - len), buf + 2); | |
355 | ||
356 | ret = i2c_master_send(client, buf, len + 2); | |
357 | if (ret != len + 2) | |
358 | return ret < 0 ? ret : -EIO; | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
363 | static int ov01a1s_write_reg_list(struct ov01a1s *ov01a1s, | |
af60d6fc | 364 | const struct ov01a1s_reg_list *r_list) |
f2efa4ee WY |
365 | { |
366 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
367 | unsigned int i; | |
368 | int ret = 0; | |
369 | ||
370 | for (i = 0; i < r_list->num_of_regs; i++) { | |
371 | ret = ov01a1s_write_reg(ov01a1s, r_list->regs[i].address, 1, | |
af60d6fc | 372 | r_list->regs[i].val); |
f2efa4ee WY |
373 | if (ret) { |
374 | dev_err_ratelimited(&client->dev, | |
375 | "write reg 0x%4.4x return err = %d", | |
376 | r_list->regs[i].address, ret); | |
377 | return ret; | |
378 | } | |
379 | } | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
384 | static int ov01a1s_update_digital_gain(struct ov01a1s *ov01a1s, u32 d_gain) | |
385 | { | |
3074d1c6 WY |
386 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); |
387 | u32 real = d_gain << 6; | |
388 | int ret = 0; | |
f2efa4ee | 389 | |
3074d1c6 WY |
390 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGILAL_GAIN_B, 3, real); |
391 | if (ret) { | |
392 | dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_B"); | |
393 | return ret; | |
394 | } | |
395 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGITAL_GAIN_GB, 3, real); | |
396 | if (ret) { | |
397 | dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_GB"); | |
398 | return ret; | |
399 | } | |
400 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGITAL_GAIN_GR, 3, real); | |
401 | if (ret) { | |
402 | dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_GR"); | |
403 | return ret; | |
404 | } | |
f2efa4ee | 405 | |
3074d1c6 WY |
406 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGITAL_GAIN_R, 3, real); |
407 | if (ret) { | |
408 | dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_R"); | |
409 | return ret; | |
410 | } | |
411 | return ret; | |
f2efa4ee WY |
412 | } |
413 | ||
414 | static int ov01a1s_test_pattern(struct ov01a1s *ov01a1s, u32 pattern) | |
415 | { | |
416 | if (pattern) | |
af60d6fc | 417 | pattern = (pattern - 1) << OV01A1S_TEST_PATTERN_BAR_SHIFT | |
f2efa4ee WY |
418 | OV01A1S_TEST_PATTERN_ENABLE; |
419 | ||
420 | return ov01a1s_write_reg(ov01a1s, OV01A1S_REG_TEST_PATTERN, 1, pattern); | |
421 | } | |
422 | ||
423 | static int ov01a1s_set_ctrl(struct v4l2_ctrl *ctrl) | |
424 | { | |
425 | struct ov01a1s *ov01a1s = container_of(ctrl->handler, | |
426 | struct ov01a1s, ctrl_handler); | |
427 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
428 | s64 exposure_max; | |
429 | int ret = 0; | |
430 | ||
431 | /* Propagate change of current control to all related controls */ | |
432 | if (ctrl->id == V4L2_CID_VBLANK) { | |
433 | /* Update max exposure while meeting expected vblanking */ | |
434 | exposure_max = ov01a1s->cur_mode->height + ctrl->val - | |
435 | OV01A1S_EXPOSURE_MAX_MARGIN; | |
436 | __v4l2_ctrl_modify_range(ov01a1s->exposure, | |
437 | ov01a1s->exposure->minimum, | |
438 | exposure_max, ov01a1s->exposure->step, | |
439 | exposure_max); | |
440 | } | |
441 | ||
442 | /* V4L2 controls values will be applied only when power is already up */ | |
443 | if (!pm_runtime_get_if_in_use(&client->dev)) | |
444 | return 0; | |
445 | ||
446 | switch (ctrl->id) { | |
447 | case V4L2_CID_ANALOGUE_GAIN: | |
448 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_ANALOG_GAIN, 2, | |
3074d1c6 | 449 | ctrl->val); |
f2efa4ee WY |
450 | break; |
451 | ||
452 | case V4L2_CID_DIGITAL_GAIN: | |
453 | ret = ov01a1s_update_digital_gain(ov01a1s, ctrl->val); | |
454 | break; | |
455 | ||
456 | case V4L2_CID_EXPOSURE: | |
457 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_EXPOSURE, 2, | |
af60d6fc | 458 | ctrl->val); |
f2efa4ee WY |
459 | break; |
460 | ||
461 | case V4L2_CID_VBLANK: | |
462 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_VTS, 2, | |
af60d6fc | 463 | ov01a1s->cur_mode->height + ctrl->val); |
f2efa4ee WY |
464 | break; |
465 | ||
466 | case V4L2_CID_TEST_PATTERN: | |
467 | ret = ov01a1s_test_pattern(ov01a1s, ctrl->val); | |
468 | break; | |
469 | ||
470 | default: | |
471 | ret = -EINVAL; | |
472 | break; | |
473 | } | |
474 | ||
475 | pm_runtime_put(&client->dev); | |
476 | ||
477 | return ret; | |
478 | } | |
479 | ||
480 | static const struct v4l2_ctrl_ops ov01a1s_ctrl_ops = { | |
481 | .s_ctrl = ov01a1s_set_ctrl, | |
482 | }; | |
483 | ||
484 | static int ov01a1s_init_controls(struct ov01a1s *ov01a1s) | |
485 | { | |
486 | struct v4l2_ctrl_handler *ctrl_hdlr; | |
487 | const struct ov01a1s_mode *cur_mode; | |
3074d1c6 | 488 | s64 exposure_max, h_blank; |
f2efa4ee WY |
489 | u32 vblank_min, vblank_max, vblank_default; |
490 | int size; | |
491 | int ret = 0; | |
492 | ||
493 | ctrl_hdlr = &ov01a1s->ctrl_handler; | |
494 | ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); | |
495 | if (ret) | |
496 | return ret; | |
497 | ||
498 | ctrl_hdlr->lock = &ov01a1s->mutex; | |
499 | cur_mode = ov01a1s->cur_mode; | |
500 | size = ARRAY_SIZE(link_freq_menu_items); | |
501 | ||
af60d6fc WY |
502 | ov01a1s->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, |
503 | &ov01a1s_ctrl_ops, | |
504 | V4L2_CID_LINK_FREQ, | |
505 | size - 1, 0, | |
506 | link_freq_menu_items); | |
f2efa4ee WY |
507 | if (ov01a1s->link_freq) |
508 | ov01a1s->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; | |
509 | ||
f2efa4ee | 510 | ov01a1s->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, |
af60d6fc | 511 | V4L2_CID_PIXEL_RATE, 0, |
3074d1c6 | 512 | OV01A1S_SCLK, 1, OV01A1S_SCLK); |
f2efa4ee WY |
513 | |
514 | vblank_min = cur_mode->vts_min - cur_mode->height; | |
515 | vblank_max = OV01A1S_VTS_MAX - cur_mode->height; | |
516 | vblank_default = cur_mode->vts_def - cur_mode->height; | |
517 | ov01a1s->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, | |
af60d6fc WY |
518 | V4L2_CID_VBLANK, vblank_min, |
519 | vblank_max, 1, vblank_default); | |
f2efa4ee | 520 | |
3074d1c6 | 521 | h_blank = cur_mode->hts - cur_mode->width; |
f2efa4ee | 522 | ov01a1s->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, |
af60d6fc WY |
523 | V4L2_CID_HBLANK, h_blank, h_blank, |
524 | 1, h_blank); | |
f2efa4ee WY |
525 | if (ov01a1s->hblank) |
526 | ov01a1s->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; | |
527 | ||
528 | v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, | |
529 | OV01A1S_ANAL_GAIN_MIN, OV01A1S_ANAL_GAIN_MAX, | |
530 | OV01A1S_ANAL_GAIN_STEP, OV01A1S_ANAL_GAIN_MIN); | |
531 | v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, V4L2_CID_DIGITAL_GAIN, | |
532 | OV01A1S_DGTL_GAIN_MIN, OV01A1S_DGTL_GAIN_MAX, | |
533 | OV01A1S_DGTL_GAIN_STEP, OV01A1S_DGTL_GAIN_DEFAULT); | |
534 | exposure_max = cur_mode->vts_def - OV01A1S_EXPOSURE_MAX_MARGIN; | |
535 | ov01a1s->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, | |
af60d6fc WY |
536 | V4L2_CID_EXPOSURE, |
537 | OV01A1S_EXPOSURE_MIN, | |
538 | exposure_max, | |
539 | OV01A1S_EXPOSURE_STEP, | |
540 | exposure_max); | |
f2efa4ee WY |
541 | v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov01a1s_ctrl_ops, |
542 | V4L2_CID_TEST_PATTERN, | |
543 | ARRAY_SIZE(ov01a1s_test_pattern_menu) - 1, | |
544 | 0, 0, ov01a1s_test_pattern_menu); | |
545 | if (ctrl_hdlr->error) | |
546 | return ctrl_hdlr->error; | |
547 | ||
548 | ov01a1s->sd.ctrl_handler = ctrl_hdlr; | |
549 | ||
550 | return 0; | |
551 | } | |
552 | ||
553 | static void ov01a1s_update_pad_format(const struct ov01a1s_mode *mode, | |
af60d6fc | 554 | struct v4l2_mbus_framefmt *fmt) |
f2efa4ee WY |
555 | { |
556 | fmt->width = mode->width; | |
557 | fmt->height = mode->height; | |
558 | fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; | |
559 | fmt->field = V4L2_FIELD_NONE; | |
560 | } | |
561 | ||
562 | static int ov01a1s_start_streaming(struct ov01a1s *ov01a1s) | |
563 | { | |
564 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
565 | const struct ov01a1s_reg_list *reg_list; | |
566 | int link_freq_index; | |
567 | int ret = 0; | |
568 | ||
eaffc3a7 | 569 | power_ctrl_logic_set_power(1); |
f2efa4ee WY |
570 | link_freq_index = ov01a1s->cur_mode->link_freq_index; |
571 | reg_list = &link_freq_configs[link_freq_index].reg_list; | |
572 | ret = ov01a1s_write_reg_list(ov01a1s, reg_list); | |
573 | if (ret) { | |
574 | dev_err(&client->dev, "failed to set plls"); | |
575 | return ret; | |
576 | } | |
577 | ||
578 | reg_list = &ov01a1s->cur_mode->reg_list; | |
579 | ret = ov01a1s_write_reg_list(ov01a1s, reg_list); | |
580 | if (ret) { | |
581 | dev_err(&client->dev, "failed to set mode"); | |
582 | return ret; | |
583 | } | |
584 | ||
585 | ret = __v4l2_ctrl_handler_setup(ov01a1s->sd.ctrl_handler); | |
586 | if (ret) | |
587 | return ret; | |
588 | ||
589 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_MODE_SELECT, 1, | |
af60d6fc | 590 | OV01A1S_MODE_STREAMING); |
f2efa4ee WY |
591 | if (ret) |
592 | dev_err(&client->dev, "failed to start streaming"); | |
593 | ||
594 | return ret; | |
595 | } | |
596 | ||
597 | static void ov01a1s_stop_streaming(struct ov01a1s *ov01a1s) | |
598 | { | |
599 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
af60d6fc | 600 | int ret = 0; |
f2efa4ee | 601 | |
af60d6fc WY |
602 | ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_MODE_SELECT, 1, |
603 | OV01A1S_MODE_STANDBY); | |
604 | if (ret) | |
f2efa4ee | 605 | dev_err(&client->dev, "failed to stop streaming"); |
eaffc3a7 | 606 | power_ctrl_logic_set_power(0); |
f2efa4ee WY |
607 | } |
608 | ||
609 | static int ov01a1s_set_stream(struct v4l2_subdev *sd, int enable) | |
610 | { | |
611 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
612 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
613 | int ret = 0; | |
614 | ||
615 | if (ov01a1s->streaming == enable) | |
616 | return 0; | |
617 | ||
618 | mutex_lock(&ov01a1s->mutex); | |
619 | if (enable) { | |
620 | ret = pm_runtime_get_sync(&client->dev); | |
621 | if (ret < 0) { | |
622 | pm_runtime_put_noidle(&client->dev); | |
623 | mutex_unlock(&ov01a1s->mutex); | |
624 | return ret; | |
625 | } | |
626 | ||
627 | ret = ov01a1s_start_streaming(ov01a1s); | |
628 | if (ret) { | |
629 | enable = 0; | |
630 | ov01a1s_stop_streaming(ov01a1s); | |
631 | pm_runtime_put(&client->dev); | |
632 | } | |
633 | } else { | |
634 | ov01a1s_stop_streaming(ov01a1s); | |
635 | pm_runtime_put(&client->dev); | |
636 | } | |
637 | ||
638 | ov01a1s->streaming = enable; | |
639 | mutex_unlock(&ov01a1s->mutex); | |
640 | ||
641 | return ret; | |
642 | } | |
643 | ||
644 | static int __maybe_unused ov01a1s_suspend(struct device *dev) | |
645 | { | |
646 | struct i2c_client *client = to_i2c_client(dev); | |
647 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
648 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
649 | ||
650 | mutex_lock(&ov01a1s->mutex); | |
651 | if (ov01a1s->streaming) | |
652 | ov01a1s_stop_streaming(ov01a1s); | |
653 | ||
654 | mutex_unlock(&ov01a1s->mutex); | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
659 | static int __maybe_unused ov01a1s_resume(struct device *dev) | |
660 | { | |
661 | struct i2c_client *client = to_i2c_client(dev); | |
662 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
663 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
664 | int ret = 0; | |
665 | ||
666 | mutex_lock(&ov01a1s->mutex); | |
667 | if (!ov01a1s->streaming) | |
668 | goto exit; | |
669 | ||
670 | ret = ov01a1s_start_streaming(ov01a1s); | |
671 | if (ret) { | |
672 | ov01a1s->streaming = false; | |
673 | ov01a1s_stop_streaming(ov01a1s); | |
674 | } | |
675 | ||
676 | exit: | |
677 | mutex_unlock(&ov01a1s->mutex); | |
678 | return ret; | |
679 | } | |
680 | ||
681 | static int ov01a1s_set_format(struct v4l2_subdev *sd, | |
5a771b35 | 682 | struct v4l2_subdev_state *sd_state, |
af60d6fc | 683 | struct v4l2_subdev_format *fmt) |
f2efa4ee WY |
684 | { |
685 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
686 | const struct ov01a1s_mode *mode; | |
687 | s32 vblank_def, h_blank; | |
688 | ||
689 | mode = v4l2_find_nearest_size(supported_modes, | |
690 | ARRAY_SIZE(supported_modes), width, | |
691 | height, fmt->format.width, | |
692 | fmt->format.height); | |
693 | ||
694 | mutex_lock(&ov01a1s->mutex); | |
695 | ov01a1s_update_pad_format(mode, &fmt->format); | |
696 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
5a771b35 | 697 | *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format; |
f2efa4ee WY |
698 | } else { |
699 | ov01a1s->cur_mode = mode; | |
700 | __v4l2_ctrl_s_ctrl(ov01a1s->link_freq, mode->link_freq_index); | |
3074d1c6 | 701 | __v4l2_ctrl_s_ctrl_int64(ov01a1s->pixel_rate, OV01A1S_SCLK); |
f2efa4ee WY |
702 | |
703 | /* Update limits and set FPS to default */ | |
704 | vblank_def = mode->vts_def - mode->height; | |
705 | __v4l2_ctrl_modify_range(ov01a1s->vblank, | |
706 | mode->vts_min - mode->height, | |
707 | OV01A1S_VTS_MAX - mode->height, 1, | |
708 | vblank_def); | |
709 | __v4l2_ctrl_s_ctrl(ov01a1s->vblank, vblank_def); | |
3074d1c6 | 710 | h_blank = mode->hts - mode->width; |
f2efa4ee WY |
711 | __v4l2_ctrl_modify_range(ov01a1s->hblank, h_blank, h_blank, 1, |
712 | h_blank); | |
713 | } | |
714 | mutex_unlock(&ov01a1s->mutex); | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
719 | static int ov01a1s_get_format(struct v4l2_subdev *sd, | |
5a771b35 | 720 | struct v4l2_subdev_state *sd_state, |
af60d6fc | 721 | struct v4l2_subdev_format *fmt) |
f2efa4ee WY |
722 | { |
723 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
724 | ||
725 | mutex_lock(&ov01a1s->mutex); | |
726 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) | |
5a771b35 HY |
727 | fmt->format = *v4l2_subdev_get_try_format(&ov01a1s->sd, |
728 | sd_state, fmt->pad); | |
f2efa4ee WY |
729 | else |
730 | ov01a1s_update_pad_format(ov01a1s->cur_mode, &fmt->format); | |
731 | ||
732 | mutex_unlock(&ov01a1s->mutex); | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | static int ov01a1s_enum_mbus_code(struct v4l2_subdev *sd, | |
5a771b35 | 738 | struct v4l2_subdev_state *sd_state, |
af60d6fc | 739 | struct v4l2_subdev_mbus_code_enum *code) |
f2efa4ee WY |
740 | { |
741 | if (code->index > 0) | |
742 | return -EINVAL; | |
743 | ||
744 | code->code = MEDIA_BUS_FMT_SGRBG10_1X10; | |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
749 | static int ov01a1s_enum_frame_size(struct v4l2_subdev *sd, | |
5a771b35 | 750 | struct v4l2_subdev_state *sd_state, |
af60d6fc | 751 | struct v4l2_subdev_frame_size_enum *fse) |
f2efa4ee WY |
752 | { |
753 | if (fse->index >= ARRAY_SIZE(supported_modes)) | |
754 | return -EINVAL; | |
755 | ||
756 | if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) | |
757 | return -EINVAL; | |
758 | ||
759 | fse->min_width = supported_modes[fse->index].width; | |
760 | fse->max_width = fse->min_width; | |
761 | fse->min_height = supported_modes[fse->index].height; | |
762 | fse->max_height = fse->min_height; | |
763 | ||
764 | return 0; | |
765 | } | |
766 | ||
767 | static int ov01a1s_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
768 | { | |
769 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
770 | ||
771 | mutex_lock(&ov01a1s->mutex); | |
772 | ov01a1s_update_pad_format(&supported_modes[0], | |
5a771b35 | 773 | v4l2_subdev_get_try_format(sd, fh->state, 0)); |
f2efa4ee WY |
774 | mutex_unlock(&ov01a1s->mutex); |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
779 | static const struct v4l2_subdev_video_ops ov01a1s_video_ops = { | |
780 | .s_stream = ov01a1s_set_stream, | |
781 | }; | |
782 | ||
783 | static const struct v4l2_subdev_pad_ops ov01a1s_pad_ops = { | |
784 | .set_fmt = ov01a1s_set_format, | |
785 | .get_fmt = ov01a1s_get_format, | |
786 | .enum_mbus_code = ov01a1s_enum_mbus_code, | |
787 | .enum_frame_size = ov01a1s_enum_frame_size, | |
788 | }; | |
789 | ||
790 | static const struct v4l2_subdev_ops ov01a1s_subdev_ops = { | |
791 | .video = &ov01a1s_video_ops, | |
792 | .pad = &ov01a1s_pad_ops, | |
793 | }; | |
794 | ||
795 | static const struct media_entity_operations ov01a1s_subdev_entity_ops = { | |
796 | .link_validate = v4l2_subdev_link_validate, | |
797 | }; | |
798 | ||
799 | static const struct v4l2_subdev_internal_ops ov01a1s_internal_ops = { | |
800 | .open = ov01a1s_open, | |
801 | }; | |
802 | ||
803 | static int ov01a1s_identify_module(struct ov01a1s *ov01a1s) | |
804 | { | |
805 | struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd); | |
806 | int ret; | |
807 | u32 val; | |
808 | ||
809 | ret = ov01a1s_read_reg(ov01a1s, OV01A1S_REG_CHIP_ID, 3, &val); | |
810 | if (ret) | |
811 | return ret; | |
812 | ||
813 | if (val != OV01A1S_CHIP_ID) { | |
814 | dev_err(&client->dev, "chip id mismatch: %x!=%x", | |
815 | OV01A1S_CHIP_ID, val); | |
816 | return -ENXIO; | |
817 | } | |
818 | ||
819 | return 0; | |
820 | } | |
821 | ||
822 | static int ov01a1s_remove(struct i2c_client *client) | |
823 | { | |
824 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
825 | struct ov01a1s *ov01a1s = to_ov01a1s(sd); | |
826 | ||
827 | v4l2_async_unregister_subdev(sd); | |
828 | media_entity_cleanup(&sd->entity); | |
829 | v4l2_ctrl_handler_free(sd->ctrl_handler); | |
830 | pm_runtime_disable(&client->dev); | |
831 | mutex_destroy(&ov01a1s->mutex); | |
832 | ||
833 | return 0; | |
834 | } | |
835 | ||
836 | static int ov01a1s_probe(struct i2c_client *client) | |
837 | { | |
838 | struct ov01a1s *ov01a1s; | |
839 | int ret = 0; | |
5a771b35 HY |
840 | struct vsc_mipi_config conf; |
841 | struct vsc_camera_status status; | |
842 | s64 link_freq; | |
843 | ||
844 | conf.lane_num = OV01A1S_DATA_LANES; | |
845 | /* frequency unit 100k */ | |
846 | conf.freq = OV01A1S_LINK_FREQ_400MHZ / 100000; | |
847 | ret = vsc_acquire_camera_sensor(&conf, NULL, NULL, &status); | |
848 | if (ret == -EAGAIN) | |
849 | ret = power_ctrl_logic_set_power(1); | |
850 | if (ret == -EAGAIN) | |
85301793 | 851 | return -EPROBE_DEFER; |
5a771b35 HY |
852 | else if (ret) |
853 | return ret; | |
f2efa4ee | 854 | ov01a1s = devm_kzalloc(&client->dev, sizeof(*ov01a1s), GFP_KERNEL); |
85301793 WY |
855 | if (!ov01a1s) { |
856 | ret = -ENOMEM; | |
857 | goto probe_error_ret; | |
858 | } | |
f2efa4ee WY |
859 | |
860 | v4l2_i2c_subdev_init(&ov01a1s->sd, client, &ov01a1s_subdev_ops); | |
861 | ret = ov01a1s_identify_module(ov01a1s); | |
862 | if (ret) { | |
863 | dev_err(&client->dev, "failed to find sensor: %d", ret); | |
85301793 | 864 | goto probe_error_ret; |
f2efa4ee WY |
865 | } |
866 | ||
867 | mutex_init(&ov01a1s->mutex); | |
868 | ov01a1s->cur_mode = &supported_modes[0]; | |
869 | ret = ov01a1s_init_controls(ov01a1s); | |
870 | if (ret) { | |
871 | dev_err(&client->dev, "failed to init controls: %d", ret); | |
872 | goto probe_error_v4l2_ctrl_handler_free; | |
873 | } | |
874 | ||
875 | ov01a1s->sd.internal_ops = &ov01a1s_internal_ops; | |
876 | ov01a1s->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
877 | ov01a1s->sd.entity.ops = &ov01a1s_subdev_entity_ops; | |
878 | ov01a1s->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; | |
879 | ov01a1s->pad.flags = MEDIA_PAD_FL_SOURCE; | |
880 | ret = media_entity_pads_init(&ov01a1s->sd.entity, 1, &ov01a1s->pad); | |
881 | if (ret) { | |
882 | dev_err(&client->dev, "failed to init entity pads: %d", ret); | |
883 | goto probe_error_v4l2_ctrl_handler_free; | |
884 | } | |
885 | ||
1223f6d5 | 886 | ret = v4l2_async_register_subdev_sensor(&ov01a1s->sd); |
f2efa4ee WY |
887 | if (ret < 0) { |
888 | dev_err(&client->dev, "failed to register V4L2 subdev: %d", | |
889 | ret); | |
890 | goto probe_error_media_entity_cleanup; | |
891 | } | |
892 | ||
5a771b35 | 893 | vsc_release_camera_sensor(&status); |
f2efa4ee WY |
894 | /* |
895 | * Device is already turned on by i2c-core with ACPI domain PM. | |
896 | * Enable runtime PM and turn off the device. | |
897 | */ | |
898 | pm_runtime_set_active(&client->dev); | |
899 | pm_runtime_enable(&client->dev); | |
900 | pm_runtime_idle(&client->dev); | |
901 | ||
eaffc3a7 | 902 | power_ctrl_logic_set_power(0); |
f2efa4ee WY |
903 | return 0; |
904 | ||
905 | probe_error_media_entity_cleanup: | |
906 | media_entity_cleanup(&ov01a1s->sd.entity); | |
907 | ||
908 | probe_error_v4l2_ctrl_handler_free: | |
909 | v4l2_ctrl_handler_free(ov01a1s->sd.ctrl_handler); | |
910 | mutex_destroy(&ov01a1s->mutex); | |
911 | ||
85301793 WY |
912 | probe_error_ret: |
913 | power_ctrl_logic_set_power(0); | |
5a771b35 | 914 | vsc_release_camera_sensor(&status); |
f2efa4ee WY |
915 | return ret; |
916 | } | |
917 | ||
918 | static const struct dev_pm_ops ov01a1s_pm_ops = { | |
919 | SET_SYSTEM_SLEEP_PM_OPS(ov01a1s_suspend, ov01a1s_resume) | |
920 | }; | |
921 | ||
922 | #ifdef CONFIG_ACPI | |
923 | static const struct acpi_device_id ov01a1s_acpi_ids[] = { | |
3ebd4441 | 924 | { "OVTI01AS" }, |
f2efa4ee WY |
925 | {} |
926 | }; | |
927 | ||
928 | MODULE_DEVICE_TABLE(acpi, ov01a1s_acpi_ids); | |
929 | #endif | |
930 | ||
931 | static struct i2c_driver ov01a1s_i2c_driver = { | |
932 | .driver = { | |
af60d6fc | 933 | .name = "ov01a1s", |
f2efa4ee WY |
934 | .pm = &ov01a1s_pm_ops, |
935 | .acpi_match_table = ACPI_PTR(ov01a1s_acpi_ids), | |
936 | }, | |
937 | .probe_new = ov01a1s_probe, | |
938 | .remove = ov01a1s_remove, | |
939 | }; | |
940 | ||
941 | module_i2c_driver(ov01a1s_i2c_driver); | |
942 | ||
af60d6fc | 943 | MODULE_AUTHOR("Xu, Chongyang <chongyang.xu@intel.com>"); |
f2efa4ee WY |
944 | MODULE_AUTHOR("Lai, Jim <jim.lai@intel.com>"); |
945 | MODULE_AUTHOR("Qiu, Tianshu <tian.shu.qiu@intel.com>"); | |
946 | MODULE_AUTHOR("Shawn Tu <shawnx.tu@intel.com>"); | |
947 | MODULE_AUTHOR("Bingbu Cao <bingbu.cao@intel.com>"); | |
948 | MODULE_DESCRIPTION("OmniVision OV01A1S sensor driver"); | |
949 | MODULE_LICENSE("GPL v2"); |