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media: staging: atomisp: Remove unneeded intel-mid.h inclusion
[mirror_ubuntu-bionic-kernel.git] / drivers / staging / media / atomisp / i2c / imx / imx.c
1 /*
2 * Support for Sony imx 8MP camera sensor.
3 *
4 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as 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., 51 Franklin Street, Fifth Floor, Boston, MA
18 * 02110-1301, USA.
19 *
20 */
21 #include "../../include/linux/atomisp_platform.h"
22 #include <linux/bitops.h>
23 #include <linux/device.h>
24 #include <linux/delay.h>
25 #include <linux/errno.h>
26 #include <linux/fs.h>
27 #include <linux/gpio.h>
28 #include <linux/init.h>
29 #include <linux/i2c.h>
30 #include <linux/io.h>
31 #include <linux/kernel.h>
32 #include "../../include/linux/libmsrlisthelper.h"
33 #include <linux/mm.h>
34 #include <linux/kmod.h>
35 #include <linux/module.h>
36 #include <linux/moduleparam.h>
37 #include <linux/string.h>
38 #include <linux/slab.h>
39 #include <linux/types.h>
40 #include <media/v4l2-ctrls.h>
41 #include <media/v4l2-device.h>
42 #include "imx.h"
43
44 /*
45 * The imx135 embedded data info:
46 * embedded data line num: 2
47 * line 0 effective data size(byte): 76
48 * line 1 effective data size(byte): 113
49 */
50 static const uint32_t
51 imx135_embedded_effective_size[IMX135_EMBEDDED_DATA_LINE_NUM]
52 = {76, 113};
53
54 static enum atomisp_bayer_order imx_bayer_order_mapping[] = {
55 atomisp_bayer_order_rggb,
56 atomisp_bayer_order_grbg,
57 atomisp_bayer_order_gbrg,
58 atomisp_bayer_order_bggr
59 };
60
61 static const unsigned int
62 IMX227_BRACKETING_LUT_FRAME_ENTRY[IMX_MAX_AE_LUT_LENGTH] = {
63 0x0E10, 0x0E1E, 0x0E2C, 0x0E3A, 0x0E48};
64
65 static int
66 imx_read_reg(struct i2c_client *client, u16 len, u16 reg, u16 *val)
67 {
68 struct i2c_msg msg[2];
69 u16 data[IMX_SHORT_MAX];
70 int ret, i;
71 int retry = 0;
72
73 if (len > IMX_BYTE_MAX) {
74 dev_err(&client->dev, "%s error, invalid data length\n",
75 __func__);
76 return -EINVAL;
77 }
78
79 do {
80 memset(msg, 0 , sizeof(msg));
81 memset(data, 0 , sizeof(data));
82
83 msg[0].addr = client->addr;
84 msg[0].flags = 0;
85 msg[0].len = I2C_MSG_LENGTH;
86 msg[0].buf = (u8 *)data;
87 /* high byte goes first */
88 data[0] = cpu_to_be16(reg);
89
90 msg[1].addr = client->addr;
91 msg[1].len = len;
92 msg[1].flags = I2C_M_RD;
93 msg[1].buf = (u8 *)data;
94
95 ret = i2c_transfer(client->adapter, msg, 2);
96 if (ret != 2) {
97 dev_err(&client->dev,
98 "retrying i2c read from offset 0x%x error %d... %d\n",
99 reg, ret, retry);
100 msleep(20);
101 }
102 } while (ret != 2 && retry++ < I2C_RETRY_COUNT);
103
104 if (ret != 2)
105 return -EIO;
106
107 /* high byte comes first */
108 if (len == IMX_8BIT) {
109 *val = (u8)data[0];
110 } else {
111 /* 16-bit access is default when len > 1 */
112 for (i = 0; i < (len >> 1); i++)
113 val[i] = be16_to_cpu(data[i]);
114 }
115
116 return 0;
117 }
118
119 static int imx_i2c_write(struct i2c_client *client, u16 len, u8 *data)
120 {
121 struct i2c_msg msg;
122 int ret;
123 int retry = 0;
124
125 do {
126 msg.addr = client->addr;
127 msg.flags = 0;
128 msg.len = len;
129 msg.buf = data;
130
131 ret = i2c_transfer(client->adapter, &msg, 1);
132 if (ret != 1) {
133 dev_err(&client->dev,
134 "retrying i2c write transfer... %d\n", retry);
135 msleep(20);
136 }
137 } while (ret != 1 && retry++ < I2C_RETRY_COUNT);
138
139 return ret == 1 ? 0 : -EIO;
140 }
141
142 int
143 imx_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u16 val)
144 {
145 int ret;
146 unsigned char data[4] = {0};
147 u16 *wreg = (u16 *)data;
148 const u16 len = data_length + sizeof(u16); /* 16-bit address + data */
149
150 if (data_length != IMX_8BIT && data_length != IMX_16BIT) {
151 v4l2_err(client, "%s error, invalid data_length\n", __func__);
152 return -EINVAL;
153 }
154
155 /* high byte goes out first */
156 *wreg = cpu_to_be16(reg);
157
158 if (data_length == IMX_8BIT)
159 data[2] = (u8)(val);
160 else {
161 /* IMX_16BIT */
162 u16 *wdata = (u16 *)&data[2];
163 *wdata = cpu_to_be16(val);
164 }
165
166 ret = imx_i2c_write(client, len, data);
167 if (ret)
168 dev_err(&client->dev,
169 "write error: wrote 0x%x to offset 0x%x error %d",
170 val, reg, ret);
171
172 return ret;
173 }
174
175 /*
176 * imx_write_reg_array - Initializes a list of imx registers
177 * @client: i2c driver client structure
178 * @reglist: list of registers to be written
179 *
180 * This function initializes a list of registers. When consecutive addresses
181 * are found in a row on the list, this function creates a buffer and sends
182 * consecutive data in a single i2c_transfer().
183 *
184 * __imx_flush_reg_array, __imx_buf_reg_array() and
185 * __imx_write_reg_is_consecutive() are internal functions to
186 * imx_write_reg_array_fast() and should be not used anywhere else.
187 *
188 */
189
190 static int __imx_flush_reg_array(struct i2c_client *client,
191 struct imx_write_ctrl *ctrl)
192 {
193 u16 size;
194
195 if (ctrl->index == 0)
196 return 0;
197
198 size = sizeof(u16) + ctrl->index; /* 16-bit address + data */
199 ctrl->buffer.addr = cpu_to_be16(ctrl->buffer.addr);
200 ctrl->index = 0;
201
202 return imx_i2c_write(client, size, (u8 *)&ctrl->buffer);
203 }
204
205 static int __imx_buf_reg_array(struct i2c_client *client,
206 struct imx_write_ctrl *ctrl,
207 const struct imx_reg *next)
208 {
209 int size;
210 u16 *data16;
211
212 switch (next->type) {
213 case IMX_8BIT:
214 size = 1;
215 ctrl->buffer.data[ctrl->index] = (u8)next->val;
216 break;
217 case IMX_16BIT:
218 size = 2;
219 data16 = (u16 *)&ctrl->buffer.data[ctrl->index];
220 *data16 = cpu_to_be16((u16)next->val);
221 break;
222 default:
223 return -EINVAL;
224 }
225
226 /* When first item is added, we need to store its starting address */
227 if (ctrl->index == 0)
228 ctrl->buffer.addr = next->sreg;
229
230 ctrl->index += size;
231
232 /*
233 * Buffer cannot guarantee free space for u32? Better flush it to avoid
234 * possible lack of memory for next item.
235 */
236 if (ctrl->index + sizeof(u16) >= IMX_MAX_WRITE_BUF_SIZE)
237 return __imx_flush_reg_array(client, ctrl);
238
239 return 0;
240 }
241
242 static int
243 __imx_write_reg_is_consecutive(struct i2c_client *client,
244 struct imx_write_ctrl *ctrl,
245 const struct imx_reg *next)
246 {
247 if (ctrl->index == 0)
248 return 1;
249
250 return ctrl->buffer.addr + ctrl->index == next->sreg;
251 }
252
253 static int imx_write_reg_array(struct i2c_client *client,
254 const struct imx_reg *reglist)
255 {
256 const struct imx_reg *next = reglist;
257 struct imx_write_ctrl ctrl;
258 int err;
259
260 ctrl.index = 0;
261 for (; next->type != IMX_TOK_TERM; next++) {
262 switch (next->type & IMX_TOK_MASK) {
263 case IMX_TOK_DELAY:
264 err = __imx_flush_reg_array(client, &ctrl);
265 if (err)
266 return err;
267 msleep(next->val);
268 break;
269
270 default:
271 /*
272 * If next address is not consecutive, data needs to be
273 * flushed before proceed.
274 */
275 if (!__imx_write_reg_is_consecutive(client, &ctrl,
276 next)) {
277 err = __imx_flush_reg_array(client, &ctrl);
278 if (err)
279 return err;
280 }
281 err = __imx_buf_reg_array(client, &ctrl, next);
282 if (err) {
283 v4l2_err(client, "%s: write error, aborted\n",
284 __func__);
285 return err;
286 }
287 break;
288 }
289 }
290
291 return __imx_flush_reg_array(client, &ctrl);
292 }
293
294 static int __imx_min_fps_diff(int fps, const struct imx_fps_setting *fps_list)
295 {
296 int diff = INT_MAX;
297 int i;
298
299 if (fps == 0)
300 return 0;
301
302 for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
303 if (!fps_list[i].fps)
304 break;
305 if (abs(fps_list[i].fps - fps) < diff)
306 diff = abs(fps_list[i].fps - fps);
307 }
308
309 return diff;
310 }
311
312 static int __imx_nearest_fps_index(int fps,
313 const struct imx_fps_setting *fps_list)
314 {
315 int fps_index = 0;
316 int i;
317
318 for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
319 if (!fps_list[i].fps)
320 break;
321 if (abs(fps_list[i].fps - fps)
322 < abs(fps_list[fps_index].fps - fps))
323 fps_index = i;
324 }
325 return fps_index;
326 }
327
328 /*
329 * This is to choose the nearest fps setting above the requested fps
330 * fps_list should be in ascendant order.
331 */
332 static int __imx_above_nearest_fps_index(int fps,
333 const struct imx_fps_setting *fps_list)
334 {
335 int fps_index = 0;
336 int i;
337
338 for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
339 if (!fps_list[i].fps)
340 break;
341 if (fps <= fps_list[i].fps) {
342 fps_index = i;
343 break;
344 }
345 }
346
347 return fps_index;
348 }
349
350 static int imx_get_lanes(struct v4l2_subdev *sd)
351 {
352 struct camera_mipi_info *imx_info = v4l2_get_subdev_hostdata(sd);
353
354 if (!imx_info)
355 return -ENOSYS;
356 if (imx_info->num_lanes < 1 || imx_info->num_lanes > 4 ||
357 imx_info->num_lanes == 3)
358 return -EINVAL;
359
360 return imx_info->num_lanes;
361 }
362
363 static int __imx_update_exposure_timing(struct i2c_client *client, u16 exposure,
364 u16 llp, u16 fll)
365 {
366 struct v4l2_subdev *sd = i2c_get_clientdata(client);
367 struct imx_device *dev = to_imx_sensor(sd);
368 int ret = 0;
369
370 if (dev->sensor_id != IMX227_ID) {
371 /* Increase the VTS to match exposure + margin */
372 if (exposure > fll - IMX_INTEGRATION_TIME_MARGIN)
373 fll = exposure + IMX_INTEGRATION_TIME_MARGIN;
374 }
375
376 ret = imx_write_reg(client, IMX_16BIT,
377 dev->reg_addr->line_length_pixels, llp);
378 if (ret)
379 return ret;
380
381 ret = imx_write_reg(client, IMX_16BIT,
382 dev->reg_addr->frame_length_lines, fll);
383 if (ret)
384 return ret;
385
386 if (exposure)
387 ret = imx_write_reg(client, IMX_16BIT,
388 dev->reg_addr->coarse_integration_time, exposure);
389
390 return ret;
391 }
392
393 static int __imx_update_gain(struct v4l2_subdev *sd, u16 gain)
394 {
395 struct imx_device *dev = to_imx_sensor(sd);
396 struct i2c_client *client = v4l2_get_subdevdata(sd);
397 int ret;
398
399 /* set global gain */
400 ret = imx_write_reg(client, IMX_8BIT, dev->reg_addr->global_gain, gain);
401 if (ret)
402 return ret;
403
404 /* set short analog gain */
405 if (dev->sensor_id == IMX135_ID)
406 ret = imx_write_reg(client, IMX_8BIT, IMX_SHORT_AGC_GAIN, gain);
407
408 return ret;
409 }
410
411 static int __imx_update_digital_gain(struct i2c_client *client, u16 digitgain)
412 {
413 struct v4l2_subdev *sd = i2c_get_clientdata(client);
414 struct imx_device *dev = to_imx_sensor(sd);
415 struct imx_write_buffer digit_gain;
416
417 digit_gain.addr = cpu_to_be16(dev->reg_addr->dgc_adj);
418 digit_gain.data[0] = (digitgain >> 8) & 0xFF;
419 digit_gain.data[1] = digitgain & 0xFF;
420
421 if (dev->sensor_id == IMX219_ID) {
422 return imx_i2c_write(client, IMX219_DGC_LEN, (u8 *)&digit_gain);
423 } else if (dev->sensor_id == IMX227_ID) {
424 return imx_i2c_write(client, IMX227_DGC_LEN, (u8 *)&digit_gain);
425 } else {
426 digit_gain.data[2] = (digitgain >> 8) & 0xFF;
427 digit_gain.data[3] = digitgain & 0xFF;
428 digit_gain.data[4] = (digitgain >> 8) & 0xFF;
429 digit_gain.data[5] = digitgain & 0xFF;
430 digit_gain.data[6] = (digitgain >> 8) & 0xFF;
431 digit_gain.data[7] = digitgain & 0xFF;
432 return imx_i2c_write(client, IMX_DGC_LEN, (u8 *)&digit_gain);
433 }
434 return 0;
435 }
436
437 static int imx_set_exposure_gain(struct v4l2_subdev *sd, u16 coarse_itg,
438 u16 gain, u16 digitgain)
439 {
440 struct imx_device *dev = to_imx_sensor(sd);
441 struct i2c_client *client = v4l2_get_subdevdata(sd);
442 int lanes = imx_get_lanes(sd);
443 unsigned int digitgain_scaled;
444 int ret = 0;
445
446 /* Validate exposure: cannot exceed VTS-4 where VTS is 16bit */
447 coarse_itg = clamp_t(u16, coarse_itg, 0, IMX_MAX_EXPOSURE_SUPPORTED);
448
449 /* Validate gain: must not exceed maximum 8bit value */
450 gain = clamp_t(u16, gain, 0, IMX_MAX_GLOBAL_GAIN_SUPPORTED);
451
452 mutex_lock(&dev->input_lock);
453
454 if (dev->sensor_id == IMX227_ID) {
455 ret = imx_write_reg_array(client, imx_param_hold);
456 if (ret) {
457 mutex_unlock(&dev->input_lock);
458 return ret;
459 }
460 }
461
462 /* For imx175, setting gain must be delayed by one */
463 if ((dev->sensor_id == IMX175_ID) && dev->digital_gain)
464 digitgain_scaled = dev->digital_gain;
465 else
466 digitgain_scaled = digitgain;
467 /* imx132 with two lanes needs more gain to saturate at max */
468 if (dev->sensor_id == IMX132_ID && lanes > 1) {
469 digitgain_scaled *= IMX132_2LANES_GAINFACT;
470 digitgain_scaled >>= IMX132_2LANES_GAINFACT_SHIFT;
471 }
472 /* Validate digital gain: must not exceed 12 bit value*/
473 digitgain_scaled = clamp_t(unsigned int, digitgain_scaled,
474 0, IMX_MAX_DIGITAL_GAIN_SUPPORTED);
475
476 ret = __imx_update_exposure_timing(client, coarse_itg,
477 dev->pixels_per_line, dev->lines_per_frame);
478 if (ret)
479 goto out;
480 dev->coarse_itg = coarse_itg;
481
482 if (dev->sensor_id == IMX175_ID)
483 ret = __imx_update_gain(sd, dev->gain);
484 else
485 ret = __imx_update_gain(sd, gain);
486 if (ret)
487 goto out;
488 dev->gain = gain;
489
490 ret = __imx_update_digital_gain(client, digitgain_scaled);
491 if (ret)
492 goto out;
493 dev->digital_gain = digitgain;
494
495 out:
496 if (dev->sensor_id == IMX227_ID)
497 ret = imx_write_reg_array(client, imx_param_update);
498 mutex_unlock(&dev->input_lock);
499 return ret;
500 }
501
502 static long imx_s_exposure(struct v4l2_subdev *sd,
503 struct atomisp_exposure *exposure)
504 {
505 return imx_set_exposure_gain(sd, exposure->integration_time[0],
506 exposure->gain[0], exposure->gain[1]);
507 }
508
509 /* FIXME -To be updated with real OTP reading */
510 static int imx_g_priv_int_data(struct v4l2_subdev *sd,
511 struct v4l2_private_int_data *priv)
512 {
513 struct i2c_client *client = v4l2_get_subdevdata(sd);
514 struct imx_device *dev = to_imx_sensor(sd);
515 u8 __user *to = priv->data;
516 u32 read_size = priv->size;
517 int ret;
518
519 /* No need to copy data if size is 0 */
520 if (!read_size)
521 goto out;
522
523 if (IS_ERR(dev->otp_data)) {
524 dev_err(&client->dev, "OTP data not available");
525 return PTR_ERR(dev->otp_data);
526 }
527 /* Correct read_size value only if bigger than maximum */
528 if (read_size > dev->otp_driver->size)
529 read_size = dev->otp_driver->size;
530
531 ret = copy_to_user(to, dev->otp_data, read_size);
532 if (ret) {
533 dev_err(&client->dev, "%s: failed to copy OTP data to user\n",
534 __func__);
535 return -EFAULT;
536 }
537 out:
538 /* Return correct size */
539 priv->size = dev->otp_driver->size;
540
541 return 0;
542 }
543
544 static int __imx_init(struct v4l2_subdev *sd, u32 val)
545 {
546 struct i2c_client *client = v4l2_get_subdevdata(sd);
547 struct imx_device *dev = to_imx_sensor(sd);
548 int lanes = imx_get_lanes(sd);
549 int ret;
550
551 if (dev->sensor_id == IMX_ID_DEFAULT)
552 return 0;
553
554 /* The default is no flip at sensor initialization */
555 dev->h_flip->cur.val = 0;
556 dev->v_flip->cur.val = 0;
557 /* Sets the default FPS */
558 dev->fps_index = 0;
559 dev->curr_res_table = dev->mode_tables->res_preview;
560 dev->entries_curr_table = dev->mode_tables->n_res_preview;
561
562 ret = imx_write_reg_array(client, dev->mode_tables->init_settings);
563 if (ret)
564 return ret;
565
566 if (dev->sensor_id == IMX132_ID && lanes > 0) {
567 static const u8 imx132_rglanesel[] = {
568 IMX132_RGLANESEL_1LANE, /* 1 lane */
569 IMX132_RGLANESEL_2LANES, /* 2 lanes */
570 IMX132_RGLANESEL_1LANE, /* undefined */
571 IMX132_RGLANESEL_4LANES, /* 4 lanes */
572 };
573 ret = imx_write_reg(client, IMX_8BIT,
574 IMX132_RGLANESEL, imx132_rglanesel[lanes - 1]);
575 }
576
577 return ret;
578 }
579
580 static int imx_init(struct v4l2_subdev *sd, u32 val)
581 {
582 struct imx_device *dev = to_imx_sensor(sd);
583 int ret = 0;
584
585 mutex_lock(&dev->input_lock);
586 ret = __imx_init(sd, val);
587 mutex_unlock(&dev->input_lock);
588
589 return ret;
590 }
591
592 static long imx_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
593 {
594
595 switch (cmd) {
596 case ATOMISP_IOC_S_EXPOSURE:
597 return imx_s_exposure(sd, arg);
598 case ATOMISP_IOC_G_SENSOR_PRIV_INT_DATA:
599 return imx_g_priv_int_data(sd, arg);
600 default:
601 return -EINVAL;
602 }
603 return 0;
604 }
605
606 static int power_up(struct v4l2_subdev *sd)
607 {
608 struct i2c_client *client = v4l2_get_subdevdata(sd);
609 struct imx_device *dev = to_imx_sensor(sd);
610 int ret;
611
612 /* power control */
613 ret = dev->platform_data->power_ctrl(sd, 1);
614 if (ret)
615 goto fail_power;
616
617 /* flis clock control */
618 ret = dev->platform_data->flisclk_ctrl(sd, 1);
619 if (ret)
620 goto fail_clk;
621
622 /* gpio ctrl */
623 ret = dev->platform_data->gpio_ctrl(sd, 1);
624 if (ret) {
625 dev_err(&client->dev, "gpio failed\n");
626 goto fail_gpio;
627 }
628
629 return 0;
630 fail_gpio:
631 dev->platform_data->gpio_ctrl(sd, 0);
632 fail_clk:
633 dev->platform_data->flisclk_ctrl(sd, 0);
634 fail_power:
635 dev->platform_data->power_ctrl(sd, 0);
636 dev_err(&client->dev, "sensor power-up failed\n");
637
638 return ret;
639 }
640
641 static int power_down(struct v4l2_subdev *sd)
642 {
643 struct imx_device *dev = to_imx_sensor(sd);
644 struct i2c_client *client = v4l2_get_subdevdata(sd);
645 int ret;
646
647 ret = dev->platform_data->flisclk_ctrl(sd, 0);
648 if (ret)
649 dev_err(&client->dev, "flisclk failed\n");
650
651 /* gpio ctrl */
652 ret = dev->platform_data->gpio_ctrl(sd, 0);
653 if (ret)
654 dev_err(&client->dev, "gpio failed\n");
655
656 /* power control */
657 ret = dev->platform_data->power_ctrl(sd, 0);
658 if (ret)
659 dev_err(&client->dev, "vprog failed.\n");
660
661 return ret;
662 }
663
664 static int __imx_s_power(struct v4l2_subdev *sd, int on)
665 {
666 struct imx_device *dev = to_imx_sensor(sd);
667 int ret = 0;
668 int r = 0;
669
670 if (on == 0) {
671 ret = power_down(sd);
672 if (dev->vcm_driver && dev->vcm_driver->power_down)
673 r = dev->vcm_driver->power_down(sd);
674 if (ret == 0)
675 ret = r;
676 dev->power = 0;
677 } else {
678 if (dev->vcm_driver && dev->vcm_driver->power_up)
679 ret = dev->vcm_driver->power_up(sd);
680 if (ret)
681 return ret;
682 ret = power_up(sd);
683 if (!ret) {
684 dev->power = 1;
685 return __imx_init(sd, 0);
686 }
687 }
688
689 return ret;
690 }
691
692 static int imx_s_power(struct v4l2_subdev *sd, int on)
693 {
694 int ret;
695 struct imx_device *dev = to_imx_sensor(sd);
696
697 mutex_lock(&dev->input_lock);
698 ret = __imx_s_power(sd, on);
699 mutex_unlock(&dev->input_lock);
700
701 return ret;
702 }
703
704 static int imx_get_intg_factor(struct i2c_client *client,
705 struct camera_mipi_info *info,
706 const struct imx_reg *reglist)
707 {
708 struct v4l2_subdev *sd = i2c_get_clientdata(client);
709 struct imx_device *dev = to_imx_sensor(sd);
710 int lanes = imx_get_lanes(sd);
711 u32 vt_pix_clk_div;
712 u32 vt_sys_clk_div;
713 u32 pre_pll_clk_div;
714 u32 pll_multiplier;
715
716 const int ext_clk_freq_hz = 19200000;
717 struct atomisp_sensor_mode_data *buf = &info->data;
718 int ret;
719 u16 data[IMX_INTG_BUF_COUNT];
720
721 u32 vt_pix_clk_freq_mhz;
722 u32 coarse_integration_time_min;
723 u32 coarse_integration_time_max_margin;
724 u32 read_mode;
725 u32 div;
726
727 if (info == NULL)
728 return -EINVAL;
729
730 memset(data, 0, IMX_INTG_BUF_COUNT * sizeof(u16));
731 ret = imx_read_reg(client, 1, IMX_VT_PIX_CLK_DIV, data);
732 if (ret)
733 return ret;
734 vt_pix_clk_div = data[0] & IMX_MASK_5BIT;
735
736 if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID) {
737 static const int rgpltd[] = { 2, 4, 1, 1 };
738 ret = imx_read_reg(client, 1, IMX132_208_VT_RGPLTD, data);
739 if (ret)
740 return ret;
741 vt_sys_clk_div = rgpltd[data[0] & IMX_MASK_2BIT];
742 } else {
743 ret = imx_read_reg(client, 1, IMX_VT_SYS_CLK_DIV, data);
744 if (ret)
745 return ret;
746 vt_sys_clk_div = data[0] & IMX_MASK_2BIT;
747 }
748 ret = imx_read_reg(client, 1, IMX_PRE_PLL_CLK_DIV, data);
749 if (ret)
750 return ret;
751 pre_pll_clk_div = data[0] & IMX_MASK_4BIT;
752
753 ret = imx_read_reg(client, 2,
754 (dev->sensor_id == IMX132_ID ||
755 dev->sensor_id == IMX219_ID ||
756 dev->sensor_id == IMX208_ID) ?
757 IMX132_208_219_PLL_MULTIPLIER : IMX_PLL_MULTIPLIER, data);
758 if (ret)
759 return ret;
760 pll_multiplier = data[0] & IMX_MASK_11BIT;
761
762 memset(data, 0, IMX_INTG_BUF_COUNT * sizeof(u16));
763 ret = imx_read_reg(client, 4, IMX_COARSE_INTG_TIME_MIN, data);
764 if (ret)
765 return ret;
766 coarse_integration_time_min = data[0];
767 coarse_integration_time_max_margin = data[1];
768
769 /* Get the cropping and output resolution to ISP for this mode. */
770 ret = imx_read_reg(client, 2, dev->reg_addr->horizontal_start_h, data);
771 if (ret)
772 return ret;
773 buf->crop_horizontal_start = data[0];
774
775 ret = imx_read_reg(client, 2, dev->reg_addr->vertical_start_h, data);
776 if (ret)
777 return ret;
778 buf->crop_vertical_start = data[0];
779
780 ret = imx_read_reg(client, 2, dev->reg_addr->horizontal_end_h, data);
781 if (ret)
782 return ret;
783 buf->crop_horizontal_end = data[0];
784
785 ret = imx_read_reg(client, 2, dev->reg_addr->vertical_end_h, data);
786 if (ret)
787 return ret;
788 buf->crop_vertical_end = data[0];
789
790 ret = imx_read_reg(client, 2,
791 dev->reg_addr->horizontal_output_size_h, data);
792 if (ret)
793 return ret;
794 buf->output_width = data[0];
795
796 ret = imx_read_reg(client, 2,
797 dev->reg_addr->vertical_output_size_h, data);
798 if (ret)
799 return ret;
800 buf->output_height = data[0];
801
802 memset(data, 0, IMX_INTG_BUF_COUNT * sizeof(u16));
803 if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID ||
804 dev->sensor_id == IMX219_ID)
805 read_mode = 0;
806 else {
807 if (dev->sensor_id == IMX227_ID)
808 ret = imx_read_reg(client, 1, IMX227_READ_MODE, data);
809 else
810 ret = imx_read_reg(client, 1, IMX_READ_MODE, data);
811
812 if (ret)
813 return ret;
814 read_mode = data[0] & IMX_MASK_2BIT;
815 }
816
817 div = pre_pll_clk_div*vt_sys_clk_div*vt_pix_clk_div;
818 if (div == 0)
819 return -EINVAL;
820
821 if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID)
822 vt_pix_clk_freq_mhz = ext_clk_freq_hz / div;
823 else if (dev->sensor_id == IMX227_ID) {
824 /* according to IMX227 datasheet:
825 * vt_pix_freq_mhz = * num_of_vt_lanes(4) * ivt_pix_clk_freq_mhz
826 */
827 vt_pix_clk_freq_mhz =
828 (u64)4 * ext_clk_freq_hz * pll_multiplier;
829 do_div(vt_pix_clk_freq_mhz, div);
830 } else
831 vt_pix_clk_freq_mhz = 2 * ext_clk_freq_hz / div;
832
833 vt_pix_clk_freq_mhz *= pll_multiplier;
834 if (dev->sensor_id == IMX132_ID && lanes > 0)
835 vt_pix_clk_freq_mhz *= lanes;
836
837 dev->vt_pix_clk_freq_mhz = vt_pix_clk_freq_mhz;
838
839 buf->vt_pix_clk_freq_mhz = vt_pix_clk_freq_mhz;
840 buf->coarse_integration_time_min = coarse_integration_time_min;
841 buf->coarse_integration_time_max_margin =
842 coarse_integration_time_max_margin;
843
844 buf->fine_integration_time_min = IMX_FINE_INTG_TIME;
845 buf->fine_integration_time_max_margin = IMX_FINE_INTG_TIME;
846 buf->fine_integration_time_def = IMX_FINE_INTG_TIME;
847 buf->frame_length_lines = dev->lines_per_frame;
848 buf->line_length_pck = dev->pixels_per_line;
849 buf->read_mode = read_mode;
850
851 if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID ||
852 dev->sensor_id == IMX219_ID) {
853 buf->binning_factor_x = 1;
854 buf->binning_factor_y = 1;
855 } else {
856 if (dev->sensor_id == IMX227_ID)
857 ret = imx_read_reg(client, 1, IMX227_BINNING_ENABLE,
858 data);
859 else
860 ret = imx_read_reg(client, 1, IMX_BINNING_ENABLE, data);
861
862 if (ret)
863 return ret;
864 /* 1:binning enabled, 0:disabled */
865 if (data[0] == 1) {
866 if (dev->sensor_id == IMX227_ID)
867 ret = imx_read_reg(client, 1,
868 IMX227_BINNING_TYPE, data);
869 else
870 ret = imx_read_reg(client, 1,
871 IMX_BINNING_TYPE, data);
872
873 if (ret)
874 return ret;
875 buf->binning_factor_x = data[0] >> 4 & 0x0f;
876 if (!buf->binning_factor_x)
877 buf->binning_factor_x = 1;
878 buf->binning_factor_y = data[0] & 0xf;
879 if (!buf->binning_factor_y)
880 buf->binning_factor_y = 1;
881 /* WOWRKAROUND, NHD setting for IMX227 should have 4x4
882 * binning but the register setting does not reflect
883 * this, I am asking vendor why this happens. this is
884 * workaround for INTEL BZ 216560.
885 */
886 if (dev->sensor_id == IMX227_ID) {
887 if (dev->curr_res_table[dev->fmt_idx].width ==
888 376 &&
889 dev->curr_res_table[dev->fmt_idx].height ==
890 656) {
891 buf->binning_factor_x = 4;
892 buf->binning_factor_y = 4;
893 }
894 }
895 } else {
896 buf->binning_factor_x = 1;
897 buf->binning_factor_y = 1;
898 }
899 }
900
901 return 0;
902 }
903
904 /* This returns the exposure time being used. This should only be used
905 for filling in EXIF data, not for actual image processing. */
906 static int imx_q_exposure(struct v4l2_subdev *sd, s32 *value)
907 {
908 struct i2c_client *client = v4l2_get_subdevdata(sd);
909 struct imx_device *dev = to_imx_sensor(sd);
910 u16 coarse;
911 int ret;
912
913 /* the fine integration time is currently not calculated */
914 ret = imx_read_reg(client, IMX_16BIT,
915 dev->reg_addr->coarse_integration_time, &coarse);
916 *value = coarse;
917
918 return ret;
919 }
920
921 static int imx_test_pattern(struct v4l2_subdev *sd)
922 {
923 struct i2c_client *client = v4l2_get_subdevdata(sd);
924 struct imx_device *dev = to_imx_sensor(sd);
925 int ret;
926
927 if (dev->power == 0)
928 return 0;
929
930 ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_R,
931 (u16)(dev->tp_r->val >> 22));
932 if (ret)
933 return ret;
934
935 ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_GR,
936 (u16)(dev->tp_gr->val >> 22));
937 if (ret)
938 return ret;
939
940 ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_GB,
941 (u16)(dev->tp_gb->val >> 22));
942 if (ret)
943 return ret;
944
945 ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_B,
946 (u16)(dev->tp_b->val >> 22));
947 if (ret)
948 return ret;
949
950 return imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_MODE,
951 (u16)(dev->tp_mode->val));
952 }
953
954 static u32 imx_translate_bayer_order(enum atomisp_bayer_order code)
955 {
956 switch (code) {
957 case atomisp_bayer_order_rggb:
958 return MEDIA_BUS_FMT_SRGGB10_1X10;
959 case atomisp_bayer_order_grbg:
960 return MEDIA_BUS_FMT_SGRBG10_1X10;
961 case atomisp_bayer_order_bggr:
962 return MEDIA_BUS_FMT_SBGGR10_1X10;
963 case atomisp_bayer_order_gbrg:
964 return MEDIA_BUS_FMT_SGBRG10_1X10;
965 }
966 return 0;
967 }
968
969 static int imx_v_flip(struct v4l2_subdev *sd, s32 value)
970 {
971 struct imx_device *dev = to_imx_sensor(sd);
972 struct camera_mipi_info *imx_info = NULL;
973 struct i2c_client *client = v4l2_get_subdevdata(sd);
974 int ret;
975 u16 val;
976
977 if (dev->power == 0)
978 return -EIO;
979
980 ret = imx_write_reg_array(client, dev->param_hold);
981 if (ret)
982 return ret;
983
984 ret = imx_read_reg(client, IMX_8BIT,
985 dev->reg_addr->img_orientation, &val);
986 if (ret)
987 return ret;
988 if (value)
989 val |= IMX_VFLIP_BIT;
990 else
991 val &= ~IMX_VFLIP_BIT;
992
993 ret = imx_write_reg(client, IMX_8BIT,
994 dev->reg_addr->img_orientation, val);
995 if (ret)
996 return ret;
997
998 imx_info = v4l2_get_subdev_hostdata(sd);
999 if (imx_info) {
1000 val &= (IMX_VFLIP_BIT|IMX_HFLIP_BIT);
1001 imx_info->raw_bayer_order = imx_bayer_order_mapping[val];
1002 dev->format.code = imx_translate_bayer_order(
1003 imx_info->raw_bayer_order);
1004 }
1005
1006 return imx_write_reg_array(client, dev->param_update);
1007 }
1008
1009 static int imx_h_flip(struct v4l2_subdev *sd, s32 value)
1010 {
1011 struct imx_device *dev = to_imx_sensor(sd);
1012 struct camera_mipi_info *imx_info = NULL;
1013 struct i2c_client *client = v4l2_get_subdevdata(sd);
1014 int ret;
1015 u16 val;
1016
1017 if (dev->power == 0)
1018 return -EIO;
1019
1020 ret = imx_write_reg_array(client, dev->param_hold);
1021 if (ret)
1022 return ret;
1023 ret = imx_read_reg(client, IMX_8BIT,
1024 dev->reg_addr->img_orientation, &val);
1025 if (ret)
1026 return ret;
1027 if (value)
1028 val |= IMX_HFLIP_BIT;
1029 else
1030 val &= ~IMX_HFLIP_BIT;
1031 ret = imx_write_reg(client, IMX_8BIT,
1032 dev->reg_addr->img_orientation, val);
1033 if (ret)
1034 return ret;
1035
1036 imx_info = v4l2_get_subdev_hostdata(sd);
1037 if (imx_info) {
1038 val &= (IMX_VFLIP_BIT|IMX_HFLIP_BIT);
1039 imx_info->raw_bayer_order = imx_bayer_order_mapping[val];
1040 dev->format.code = imx_translate_bayer_order(
1041 imx_info->raw_bayer_order);
1042 }
1043
1044 return imx_write_reg_array(client, dev->param_update);
1045 }
1046
1047 static int imx_g_focal(struct v4l2_subdev *sd, s32 *val)
1048 {
1049 *val = (IMX_FOCAL_LENGTH_NUM << 16) | IMX_FOCAL_LENGTH_DEM;
1050 return 0;
1051 }
1052
1053 static int imx_g_fnumber(struct v4l2_subdev *sd, s32 *val)
1054 {
1055 /*const f number for imx*/
1056 *val = (IMX_F_NUMBER_DEFAULT_NUM << 16) | IMX_F_NUMBER_DEM;
1057 return 0;
1058 }
1059
1060 static int imx_g_fnumber_range(struct v4l2_subdev *sd, s32 *val)
1061 {
1062 *val = (IMX_F_NUMBER_DEFAULT_NUM << 24) |
1063 (IMX_F_NUMBER_DEM << 16) |
1064 (IMX_F_NUMBER_DEFAULT_NUM << 8) | IMX_F_NUMBER_DEM;
1065 return 0;
1066 }
1067
1068 static int imx_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
1069 {
1070 struct imx_device *dev = to_imx_sensor(sd);
1071
1072 *val = dev->curr_res_table[dev->fmt_idx].bin_factor_x;
1073
1074 return 0;
1075 }
1076
1077 static int imx_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
1078 {
1079 struct imx_device *dev = to_imx_sensor(sd);
1080
1081 *val = dev->curr_res_table[dev->fmt_idx].bin_factor_y;
1082
1083 return 0;
1084 }
1085
1086 static int imx_t_focus_abs(struct v4l2_subdev *sd, s32 value)
1087 {
1088 struct imx_device *dev = to_imx_sensor(sd);
1089 if (dev->vcm_driver && dev->vcm_driver->t_focus_abs)
1090 return dev->vcm_driver->t_focus_abs(sd, value);
1091 return 0;
1092 }
1093
1094 static int imx_t_focus_rel(struct v4l2_subdev *sd, s32 value)
1095 {
1096 struct imx_device *dev = to_imx_sensor(sd);
1097 if (dev->vcm_driver && dev->vcm_driver->t_focus_rel)
1098 return dev->vcm_driver->t_focus_rel(sd, value);
1099 return 0;
1100 }
1101
1102 static int imx_q_focus_status(struct v4l2_subdev *sd, s32 *value)
1103 {
1104 struct imx_device *dev = to_imx_sensor(sd);
1105 if (dev->vcm_driver && dev->vcm_driver->q_focus_status)
1106 return dev->vcm_driver->q_focus_status(sd, value);
1107 return 0;
1108 }
1109
1110 static int imx_q_focus_abs(struct v4l2_subdev *sd, s32 *value)
1111 {
1112 struct imx_device *dev = to_imx_sensor(sd);
1113 if (dev->vcm_driver && dev->vcm_driver->q_focus_abs)
1114 return dev->vcm_driver->q_focus_abs(sd, value);
1115 return 0;
1116 }
1117
1118 static int imx_t_vcm_slew(struct v4l2_subdev *sd, s32 value)
1119 {
1120 struct imx_device *dev = to_imx_sensor(sd);
1121 if (dev->vcm_driver && dev->vcm_driver->t_vcm_slew)
1122 return dev->vcm_driver->t_vcm_slew(sd, value);
1123 return 0;
1124 }
1125
1126 static int imx_t_vcm_timing(struct v4l2_subdev *sd, s32 value)
1127 {
1128 struct imx_device *dev = to_imx_sensor(sd);
1129 if (dev->vcm_driver && dev->vcm_driver->t_vcm_timing)
1130 return dev->vcm_driver->t_vcm_timing(sd, value);
1131 return 0;
1132 }
1133
1134 static int imx_s_ctrl(struct v4l2_ctrl *ctrl)
1135 {
1136 struct imx_device *dev = container_of(
1137 ctrl->handler, struct imx_device, ctrl_handler);
1138 struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
1139 int ret = 0;
1140
1141 switch (ctrl->id) {
1142 case V4L2_CID_TEST_PATTERN:
1143 ret = imx_test_pattern(&dev->sd);
1144 break;
1145 case V4L2_CID_VFLIP:
1146 dev_dbg(&client->dev, "%s: CID_VFLIP:%d.\n",
1147 __func__, ctrl->val);
1148 ret = imx_v_flip(&dev->sd, ctrl->val);
1149 break;
1150 case V4L2_CID_HFLIP:
1151 dev_dbg(&client->dev, "%s: CID_HFLIP:%d.\n",
1152 __func__, ctrl->val);
1153 ret = imx_h_flip(&dev->sd, ctrl->val);
1154 break;
1155 case V4L2_CID_FOCUS_ABSOLUTE:
1156 ret = imx_t_focus_abs(&dev->sd, ctrl->val);
1157 break;
1158 case V4L2_CID_FOCUS_RELATIVE:
1159 ret = imx_t_focus_rel(&dev->sd, ctrl->val);
1160 break;
1161 case V4L2_CID_VCM_SLEW:
1162 ret = imx_t_vcm_slew(&dev->sd, ctrl->val);
1163 break;
1164 case V4L2_CID_VCM_TIMEING:
1165 ret = imx_t_vcm_timing(&dev->sd, ctrl->val);
1166 break;
1167 }
1168
1169 return ret;
1170 }
1171
1172 static int imx_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1173 {
1174 struct imx_device *dev = container_of(
1175 ctrl->handler, struct imx_device, ctrl_handler);
1176 int ret = 0;
1177 unsigned int val;
1178
1179 switch (ctrl->id) {
1180 case V4L2_CID_EXPOSURE_ABSOLUTE:
1181 ret = imx_q_exposure(&dev->sd, &ctrl->val);
1182 break;
1183 case V4L2_CID_FOCUS_ABSOLUTE:
1184 ret = imx_q_focus_abs(&dev->sd, &ctrl->val);
1185 break;
1186 case V4L2_CID_FOCUS_STATUS:
1187 ret = imx_q_focus_status(&dev->sd, &ctrl->val);
1188 break;
1189 case V4L2_CID_FOCAL_ABSOLUTE:
1190 ret = imx_g_focal(&dev->sd, &ctrl->val);
1191 break;
1192 case V4L2_CID_FNUMBER_ABSOLUTE:
1193 ret = imx_g_fnumber(&dev->sd, &ctrl->val);
1194 break;
1195 case V4L2_CID_FNUMBER_RANGE:
1196 ret = imx_g_fnumber_range(&dev->sd, &ctrl->val);
1197 break;
1198 case V4L2_CID_BIN_FACTOR_HORZ:
1199 ret = imx_g_bin_factor_x(&dev->sd, &ctrl->val);
1200 break;
1201 case V4L2_CID_BIN_FACTOR_VERT:
1202 ret = imx_g_bin_factor_y(&dev->sd, &ctrl->val);
1203 break;
1204 case V4L2_CID_VBLANK:
1205 ctrl->val = dev->lines_per_frame -
1206 dev->curr_res_table[dev->fmt_idx].height;
1207 break;
1208 case V4L2_CID_HBLANK:
1209 ctrl->val = dev->pixels_per_line -
1210 dev->curr_res_table[dev->fmt_idx].width;
1211 break;
1212 case V4L2_CID_PIXEL_RATE:
1213 ctrl->val = dev->vt_pix_clk_freq_mhz;
1214 break;
1215 case V4L2_CID_LINK_FREQ:
1216 val = dev->curr_res_table[dev->fmt_idx].
1217 fps_options[dev->fps_index].mipi_freq;
1218 if (val == 0)
1219 val = dev->curr_res_table[dev->fmt_idx].mipi_freq;
1220 if (val == 0)
1221 return -EINVAL;
1222 ctrl->val = val * 1000; /* To Hz */
1223 break;
1224 default:
1225 return -EINVAL;
1226 }
1227
1228 return ret;
1229 }
1230
1231 static const struct v4l2_ctrl_ops ctrl_ops = {
1232 .s_ctrl = imx_s_ctrl,
1233 .g_volatile_ctrl = imx_g_volatile_ctrl
1234 };
1235
1236 static const struct v4l2_ctrl_config imx_controls[] = {
1237 {
1238 .ops = &ctrl_ops,
1239 .id = V4L2_CID_EXPOSURE_ABSOLUTE,
1240 .type = V4L2_CTRL_TYPE_INTEGER,
1241 .name = "exposure",
1242 .min = 0x0,
1243 .max = 0xffff,
1244 .step = 0x01,
1245 .def = 0x00,
1246 .flags = V4L2_CTRL_FLAG_VOLATILE,
1247 },
1248 {
1249 .ops = &ctrl_ops,
1250 .id = V4L2_CID_TEST_PATTERN,
1251 .type = V4L2_CTRL_TYPE_INTEGER,
1252 .name = "Test pattern",
1253 .min = 0,
1254 .max = 0xffff,
1255 .step = 1,
1256 .def = 0,
1257 },
1258 {
1259 .ops = &ctrl_ops,
1260 .id = V4L2_CID_TEST_PATTERN_COLOR_R,
1261 .type = V4L2_CTRL_TYPE_INTEGER,
1262 .name = "Test pattern solid color R",
1263 .min = INT_MIN,
1264 .max = INT_MAX,
1265 .step = 1,
1266 .def = 0,
1267 },
1268 {
1269 .ops = &ctrl_ops,
1270 .id = V4L2_CID_TEST_PATTERN_COLOR_GR,
1271 .type = V4L2_CTRL_TYPE_INTEGER,
1272 .name = "Test pattern solid color GR",
1273 .min = INT_MIN,
1274 .max = INT_MAX,
1275 .step = 1,
1276 .def = 0,
1277 },
1278 {
1279 .ops = &ctrl_ops,
1280 .id = V4L2_CID_TEST_PATTERN_COLOR_GB,
1281 .type = V4L2_CTRL_TYPE_INTEGER,
1282 .name = "Test pattern solid color GB",
1283 .min = INT_MIN,
1284 .max = INT_MAX,
1285 .step = 1,
1286 .def = 0,
1287 },
1288 {
1289 .ops = &ctrl_ops,
1290 .id = V4L2_CID_TEST_PATTERN_COLOR_B,
1291 .type = V4L2_CTRL_TYPE_INTEGER,
1292 .name = "Test pattern solid color B",
1293 .min = INT_MIN,
1294 .max = INT_MAX,
1295 .step = 1,
1296 .def = 0,
1297 },
1298 {
1299 .ops = &ctrl_ops,
1300 .id = V4L2_CID_VFLIP,
1301 .type = V4L2_CTRL_TYPE_BOOLEAN,
1302 .name = "Flip",
1303 .min = 0,
1304 .max = 1,
1305 .step = 1,
1306 .def = 0,
1307 },
1308 {
1309 .ops = &ctrl_ops,
1310 .id = V4L2_CID_HFLIP,
1311 .type = V4L2_CTRL_TYPE_BOOLEAN,
1312 .name = "Mirror",
1313 .min = 0,
1314 .max = 1,
1315 .step = 1,
1316 .def = 0,
1317 },
1318 {
1319 .ops = &ctrl_ops,
1320 .id = V4L2_CID_FOCUS_ABSOLUTE,
1321 .type = V4L2_CTRL_TYPE_INTEGER,
1322 .name = "focus move absolute",
1323 .min = 0,
1324 .max = IMX_MAX_FOCUS_POS,
1325 .step = 1,
1326 .def = 0,
1327 .flags = V4L2_CTRL_FLAG_VOLATILE,
1328 },
1329 {
1330 .ops = &ctrl_ops,
1331 .id = V4L2_CID_FOCUS_RELATIVE,
1332 .type = V4L2_CTRL_TYPE_INTEGER,
1333 .name = "focus move relative",
1334 .min = IMX_MAX_FOCUS_NEG,
1335 .max = IMX_MAX_FOCUS_POS,
1336 .step = 1,
1337 .def = 0,
1338 .flags = 0,
1339 },
1340 {
1341 .ops = &ctrl_ops,
1342 .id = V4L2_CID_FOCUS_STATUS,
1343 .type = V4L2_CTRL_TYPE_INTEGER,
1344 .name = "focus status",
1345 .min = 0,
1346 .max = 100, /* allow enum to grow in the future */
1347 .step = 1,
1348 .def = 0,
1349 .flags = V4L2_CTRL_FLAG_VOLATILE,
1350 },
1351 {
1352 .ops = &ctrl_ops,
1353 .id = V4L2_CID_VCM_SLEW,
1354 .type = V4L2_CTRL_TYPE_INTEGER,
1355 .name = "vcm slew",
1356 .min = 0,
1357 .max = IMX_VCM_SLEW_STEP_MAX,
1358 .step = 1,
1359 .def = 0,
1360 .flags = 0,
1361 },
1362 {
1363 .ops = &ctrl_ops,
1364 .id = V4L2_CID_VCM_TIMEING,
1365 .type = V4L2_CTRL_TYPE_INTEGER,
1366 .name = "vcm step time",
1367 .min = 0,
1368 .max = IMX_VCM_SLEW_TIME_MAX,
1369 .step = 1,
1370 .def = 0,
1371 .flags = 0,
1372 },
1373 {
1374 .ops = &ctrl_ops,
1375 .id = V4L2_CID_FOCAL_ABSOLUTE,
1376 .type = V4L2_CTRL_TYPE_INTEGER,
1377 .name = "focal length",
1378 .min = IMX_FOCAL_LENGTH_DEFAULT,
1379 .max = IMX_FOCAL_LENGTH_DEFAULT,
1380 .step = 0x01,
1381 .def = IMX_FOCAL_LENGTH_DEFAULT,
1382 .flags = V4L2_CTRL_FLAG_VOLATILE,
1383 },
1384 {
1385 .ops = &ctrl_ops,
1386 .id = V4L2_CID_FNUMBER_ABSOLUTE,
1387 .type = V4L2_CTRL_TYPE_INTEGER,
1388 .name = "f-number",
1389 .min = IMX_F_NUMBER_DEFAULT,
1390 .max = IMX_F_NUMBER_DEFAULT,
1391 .step = 0x01,
1392 .def = IMX_F_NUMBER_DEFAULT,
1393 .flags = V4L2_CTRL_FLAG_VOLATILE,
1394 },
1395 {
1396 .ops = &ctrl_ops,
1397 .id = V4L2_CID_FNUMBER_RANGE,
1398 .type = V4L2_CTRL_TYPE_INTEGER,
1399 .name = "f-number range",
1400 .min = IMX_F_NUMBER_RANGE,
1401 .max = IMX_F_NUMBER_RANGE,
1402 .step = 0x01,
1403 .def = IMX_F_NUMBER_RANGE,
1404 .flags = V4L2_CTRL_FLAG_VOLATILE,
1405 },
1406 {
1407 .ops = &ctrl_ops,
1408 .id = V4L2_CID_BIN_FACTOR_HORZ,
1409 .type = V4L2_CTRL_TYPE_INTEGER,
1410 .name = "horizontal binning factor",
1411 .min = 0,
1412 .max = IMX_BIN_FACTOR_MAX,
1413 .step = 1,
1414 .def = 0,
1415 .flags = V4L2_CTRL_FLAG_VOLATILE,
1416 },
1417 {
1418 .ops = &ctrl_ops,
1419 .id = V4L2_CID_BIN_FACTOR_VERT,
1420 .type = V4L2_CTRL_TYPE_INTEGER,
1421 .name = "vertical binning factor",
1422 .min = 0,
1423 .max = IMX_BIN_FACTOR_MAX,
1424 .step = 1,
1425 .def = 0,
1426 .flags = V4L2_CTRL_FLAG_VOLATILE,
1427 },
1428 {
1429 .ops = &ctrl_ops,
1430 .id = V4L2_CID_LINK_FREQ,
1431 .name = "Link Frequency",
1432 .type = V4L2_CTRL_TYPE_INTEGER,
1433 .min = 1,
1434 .max = 1500000 * 1000,
1435 .step = 1,
1436 .def = 1,
1437 .flags = V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_READ_ONLY,
1438 },
1439 {
1440 .ops = &ctrl_ops,
1441 .id = V4L2_CID_PIXEL_RATE,
1442 .name = "Pixel Rate",
1443 .type = V4L2_CTRL_TYPE_INTEGER,
1444 .min = 0,
1445 .max = INT_MAX,
1446 .step = 1,
1447 .def = 0,
1448 .flags = V4L2_CTRL_FLAG_VOLATILE,
1449 },
1450 {
1451 .ops = &ctrl_ops,
1452 .id = V4L2_CID_HBLANK,
1453 .name = "Horizontal Blanking",
1454 .type = V4L2_CTRL_TYPE_INTEGER,
1455 .min = 0,
1456 .max = SHRT_MAX,
1457 .step = 1,
1458 .def = 0,
1459 .flags = V4L2_CTRL_FLAG_VOLATILE,
1460 },
1461 {
1462 .ops = &ctrl_ops,
1463 .id = V4L2_CID_VBLANK,
1464 .name = "Vertical Blanking",
1465 .type = V4L2_CTRL_TYPE_INTEGER,
1466 .min = 0,
1467 .max = SHRT_MAX,
1468 .step = 1,
1469 .def = 0,
1470 .flags = V4L2_CTRL_FLAG_VOLATILE,
1471 },
1472 {
1473 .ops = &ctrl_ops,
1474 .id = V4L2_CID_HFLIP,
1475 .name = "Horizontal Flip",
1476 .type = V4L2_CTRL_TYPE_INTEGER,
1477 .min = 0,
1478 .max = 1,
1479 .step = 1,
1480 .def = 0,
1481 .flags = 0,
1482 },
1483 {
1484 .ops = &ctrl_ops,
1485 .id = V4L2_CID_VFLIP,
1486 .name = "Vertical Flip",
1487 .type = V4L2_CTRL_TYPE_INTEGER,
1488 .min = 0,
1489 .max = 1,
1490 .step = 1,
1491 .def = 0,
1492 .flags = 0,
1493 },
1494 };
1495
1496 /*
1497 * distance - calculate the distance
1498 * @res: resolution
1499 * @w: width
1500 * @h: height
1501 *
1502 * Get the gap between resolution and w/h.
1503 * res->width/height smaller than w/h wouldn't be considered.
1504 * Returns the value of gap or -1 if fail.
1505 */
1506 #define LARGEST_ALLOWED_RATIO_MISMATCH 600
1507 static int distance(struct imx_resolution const *res, u32 w, u32 h,
1508 bool keep_ratio)
1509 {
1510 unsigned int w_ratio;
1511 unsigned int h_ratio;
1512 int match;
1513 unsigned int allowed_ratio_mismatch = LARGEST_ALLOWED_RATIO_MISMATCH;
1514
1515 if (!keep_ratio)
1516 allowed_ratio_mismatch = ~0;
1517
1518 if (w == 0)
1519 return -1;
1520 w_ratio = (res->width << 13) / w;
1521 if (h == 0)
1522 return -1;
1523 h_ratio = (res->height << 13) / h;
1524 if (h_ratio == 0)
1525 return -1;
1526 match = abs(((w_ratio << 13) / h_ratio) - ((int)8192));
1527
1528 if ((w_ratio < (int)8192) || (h_ratio < (int)8192) ||
1529 (match > allowed_ratio_mismatch))
1530 return -1;
1531
1532 return w_ratio + h_ratio;
1533 }
1534
1535 /* Return the nearest higher resolution index */
1536 static int nearest_resolution_index(struct v4l2_subdev *sd, int w, int h)
1537 {
1538 int i;
1539 int idx = -1;
1540 int dist;
1541 int fps_diff;
1542 int min_fps_diff = INT_MAX;
1543 int min_dist = INT_MAX;
1544 const struct imx_resolution *tmp_res = NULL;
1545 struct imx_device *dev = to_imx_sensor(sd);
1546 bool again = 1;
1547 retry:
1548 for (i = 0; i < dev->entries_curr_table; i++) {
1549 tmp_res = &dev->curr_res_table[i];
1550 dist = distance(tmp_res, w, h, again);
1551 if (dist == -1)
1552 continue;
1553 if (dist < min_dist) {
1554 min_dist = dist;
1555 idx = i;
1556 }
1557 if (dist == min_dist) {
1558 fps_diff = __imx_min_fps_diff(dev->targetfps,
1559 tmp_res->fps_options);
1560 if (fps_diff < min_fps_diff) {
1561 min_fps_diff = fps_diff;
1562 idx = i;
1563 }
1564 }
1565 }
1566
1567 /*
1568 * FIXME!
1569 * only IMX135 for Saltbay and IMX227 use this algorithm
1570 */
1571 if (idx == -1 && again == true && dev->new_res_sel_method) {
1572 again = false;
1573 goto retry;
1574 }
1575 return idx;
1576 }
1577
1578 /* Call with ctrl_handler.lock hold */
1579 static int __adjust_hvblank(struct v4l2_subdev *sd)
1580 {
1581 struct i2c_client *client = v4l2_get_subdevdata(sd);
1582 struct imx_device *dev = to_imx_sensor(sd);
1583 u16 new_frame_length_lines, new_line_length_pck;
1584 int ret;
1585
1586 /*
1587 * No need to adjust h/v blank if not set dbg value
1588 * Note that there is no other checking on the h/v blank value,
1589 * as h/v blank can be set to any value above zero for debug purpose
1590 */
1591 if (!dev->v_blank->val || !dev->h_blank->val)
1592 return 0;
1593
1594 new_frame_length_lines = dev->curr_res_table[dev->fmt_idx].height +
1595 dev->v_blank->val;
1596 new_line_length_pck = dev->curr_res_table[dev->fmt_idx].width +
1597 dev->h_blank->val;
1598
1599 ret = imx_write_reg(client, IMX_16BIT,
1600 dev->reg_addr->line_length_pixels, new_line_length_pck);
1601 if (ret)
1602 return ret;
1603 ret = imx_write_reg(client, IMX_16BIT,
1604 dev->reg_addr->frame_length_lines, new_frame_length_lines);
1605 if (ret)
1606 return ret;
1607
1608 dev->lines_per_frame = new_frame_length_lines;
1609 dev->pixels_per_line = new_line_length_pck;
1610
1611 return 0;
1612 }
1613
1614 static int imx_set_fmt(struct v4l2_subdev *sd,
1615 struct v4l2_subdev_pad_config *cfg,
1616 struct v4l2_subdev_format *format)
1617 {
1618 struct v4l2_mbus_framefmt *fmt = &format->format;
1619 struct imx_device *dev = to_imx_sensor(sd);
1620 struct camera_mipi_info *imx_info = NULL;
1621 struct i2c_client *client = v4l2_get_subdevdata(sd);
1622 const struct imx_resolution *res;
1623 int lanes = imx_get_lanes(sd);
1624 int ret;
1625 u16 data, val;
1626 int idx;
1627 if (format->pad)
1628 return -EINVAL;
1629 if (!fmt)
1630 return -EINVAL;
1631
1632 imx_info = v4l2_get_subdev_hostdata(sd);
1633 if (imx_info == NULL)
1634 return -EINVAL;
1635 if ((fmt->width > imx_max_res[dev->sensor_id].res_max_width)
1636 || (fmt->height > imx_max_res[dev->sensor_id].res_max_height)) {
1637 fmt->width = imx_max_res[dev->sensor_id].res_max_width;
1638 fmt->height = imx_max_res[dev->sensor_id].res_max_height;
1639 } else {
1640 idx = nearest_resolution_index(sd, fmt->width, fmt->height);
1641
1642 /*
1643 * nearest_resolution_index() doesn't return smaller
1644 * resolutions. If it fails, it means the requested
1645 * resolution is higher than wecan support. Fallback
1646 * to highest possible resolution in this case.
1647 */
1648 if (idx == -1)
1649 idx = dev->entries_curr_table - 1;
1650
1651 fmt->width = dev->curr_res_table[idx].width;
1652 fmt->height = dev->curr_res_table[idx].height;
1653 }
1654
1655 fmt->code = dev->format.code;
1656 if(format->which == V4L2_SUBDEV_FORMAT_TRY) {
1657 cfg->try_fmt = *fmt;
1658 return 0;
1659 }
1660 mutex_lock(&dev->input_lock);
1661
1662 dev->fmt_idx = nearest_resolution_index(sd, fmt->width, fmt->height);
1663 if (dev->fmt_idx == -1) {
1664 ret = -EINVAL;
1665 goto out;
1666 }
1667 res = &dev->curr_res_table[dev->fmt_idx];
1668
1669 /* Adjust the FPS selection based on the resolution selected */
1670 dev->fps_index = __imx_nearest_fps_index(dev->targetfps,
1671 res->fps_options);
1672 dev->fps = res->fps_options[dev->fps_index].fps;
1673 dev->regs = res->fps_options[dev->fps_index].regs;
1674 if (!dev->regs)
1675 dev->regs = res->regs;
1676
1677 ret = imx_write_reg_array(client, dev->regs);
1678 if (ret)
1679 goto out;
1680
1681 if (dev->sensor_id == IMX132_ID && lanes > 0) {
1682 static const u8 imx132_rgpltd[] = {
1683 2, /* 1 lane: /1 */
1684 0, /* 2 lanes: /2 */
1685 0, /* undefined */
1686 1, /* 4 lanes: /4 */
1687 };
1688 ret = imx_write_reg(client, IMX_8BIT, IMX132_208_VT_RGPLTD,
1689 imx132_rgpltd[lanes - 1]);
1690 if (ret)
1691 goto out;
1692 }
1693
1694 dev->pixels_per_line = res->fps_options[dev->fps_index].pixels_per_line;
1695 dev->lines_per_frame = res->fps_options[dev->fps_index].lines_per_frame;
1696
1697 /* dbg h/v blank time */
1698 __adjust_hvblank(sd);
1699
1700 ret = __imx_update_exposure_timing(client, dev->coarse_itg,
1701 dev->pixels_per_line, dev->lines_per_frame);
1702 if (ret)
1703 goto out;
1704
1705 ret = __imx_update_gain(sd, dev->gain);
1706 if (ret)
1707 goto out;
1708
1709 ret = __imx_update_digital_gain(client, dev->digital_gain);
1710 if (ret)
1711 goto out;
1712
1713 ret = imx_write_reg_array(client, dev->param_update);
1714 if (ret)
1715 goto out;
1716
1717 ret = imx_get_intg_factor(client, imx_info, dev->regs);
1718 if (ret)
1719 goto out;
1720
1721 ret = imx_read_reg(client, IMX_8BIT,
1722 dev->reg_addr->img_orientation, &val);
1723 if (ret)
1724 goto out;
1725 val &= (IMX_VFLIP_BIT|IMX_HFLIP_BIT);
1726 imx_info->raw_bayer_order = imx_bayer_order_mapping[val];
1727 dev->format.code = imx_translate_bayer_order(
1728 imx_info->raw_bayer_order);
1729
1730 /*
1731 * Fill meta data info. add imx135 metadata setting for RAW10 format
1732 */
1733 switch (dev->sensor_id) {
1734 case IMX135_ID:
1735 ret = imx_read_reg(client, 2,
1736 IMX135_OUTPUT_DATA_FORMAT_REG, &data);
1737 if (ret)
1738 goto out;
1739 /*
1740 * The IMX135 can support various resolutions like
1741 * RAW6/8/10/12/14.
1742 * 1.The data format is RAW10:
1743 * matadata width = current resolution width(pixel) * 10 / 8
1744 * 2.The data format is RAW6 or RAW8:
1745 * matadata width = current resolution width(pixel);
1746 * 3.other data format(RAW12/14 etc):
1747 * TBD.
1748 */
1749 if (data == IMX135_OUTPUT_FORMAT_RAW10)
1750 /* the data format is RAW10. */
1751 imx_info->metadata_width = res->width * 10 / 8;
1752 else
1753 /* The data format is RAW6/8/12/14/ etc. */
1754 imx_info->metadata_width = res->width;
1755
1756 imx_info->metadata_height = IMX135_EMBEDDED_DATA_LINE_NUM;
1757
1758 if (imx_info->metadata_effective_width == NULL)
1759 imx_info->metadata_effective_width =
1760 imx135_embedded_effective_size;
1761
1762 break;
1763 case IMX227_ID:
1764 ret = imx_read_reg(client, 2, IMX227_OUTPUT_DATA_FORMAT_REG,
1765 &data);
1766 if (ret)
1767 goto out;
1768 if (data == IMX227_OUTPUT_FORMAT_RAW10)
1769 /* the data format is RAW10. */
1770 imx_info->metadata_width = res->width * 10 / 8;
1771 else
1772 /* The data format is RAW6/8/12/14/ etc. */
1773 imx_info->metadata_width = res->width;
1774
1775 imx_info->metadata_height = IMX227_EMBEDDED_DATA_LINE_NUM;
1776
1777 if (imx_info->metadata_effective_width == NULL)
1778 imx_info->metadata_effective_width =
1779 imx227_embedded_effective_size;
1780
1781 break;
1782 default:
1783 imx_info->metadata_width = 0;
1784 imx_info->metadata_height = 0;
1785 imx_info->metadata_effective_width = NULL;
1786 break;
1787 }
1788
1789 out:
1790 mutex_unlock(&dev->input_lock);
1791 return ret;
1792 }
1793
1794
1795 static int imx_get_fmt(struct v4l2_subdev *sd,
1796 struct v4l2_subdev_pad_config *cfg,
1797 struct v4l2_subdev_format *format)
1798 {
1799 struct v4l2_mbus_framefmt *fmt = &format->format;
1800 struct imx_device *dev = to_imx_sensor(sd);
1801
1802 if (format->pad)
1803 return -EINVAL;
1804 if (!fmt)
1805 return -EINVAL;
1806
1807 mutex_lock(&dev->input_lock);
1808 fmt->width = dev->curr_res_table[dev->fmt_idx].width;
1809 fmt->height = dev->curr_res_table[dev->fmt_idx].height;
1810 fmt->code = dev->format.code;
1811 mutex_unlock(&dev->input_lock);
1812 return 0;
1813 }
1814
1815 static int imx_detect(struct i2c_client *client, u16 *id, u8 *revision)
1816 {
1817 struct i2c_adapter *adapter = client->adapter;
1818
1819 /* i2c check */
1820 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
1821 return -ENODEV;
1822
1823 /* check sensor chip ID */
1824 if (imx_read_reg(client, IMX_16BIT, IMX132_175_208_219_CHIP_ID, id)) {
1825 v4l2_err(client, "sensor_id = 0x%x\n", *id);
1826 return -ENODEV;
1827 }
1828
1829 if (*id == IMX132_ID || *id == IMX175_ID ||
1830 *id == IMX208_ID || *id == IMX219_ID)
1831 goto found;
1832
1833 if (imx_read_reg(client, IMX_16BIT, IMX134_135_227_CHIP_ID, id)) {
1834 v4l2_err(client, "sensor_id = 0x%x\n", *id);
1835 return -ENODEV;
1836 }
1837 if (*id != IMX134_ID && *id != IMX135_ID && *id != IMX227_ID) {
1838 v4l2_err(client, "no imx sensor found\n");
1839 return -ENODEV;
1840 }
1841 found:
1842 v4l2_info(client, "sensor_id = 0x%x\n", *id);
1843
1844 /* TODO - need to be updated */
1845 *revision = 0;
1846
1847 return 0;
1848 }
1849
1850 static void __imx_print_timing(struct v4l2_subdev *sd)
1851 {
1852 struct imx_device *dev = to_imx_sensor(sd);
1853 struct i2c_client *client = v4l2_get_subdevdata(sd);
1854 u16 width = dev->curr_res_table[dev->fmt_idx].width;
1855 u16 height = dev->curr_res_table[dev->fmt_idx].height;
1856
1857 dev_dbg(&client->dev, "Dump imx timing in stream on:\n");
1858 dev_dbg(&client->dev, "width: %d:\n", width);
1859 dev_dbg(&client->dev, "height: %d:\n", height);
1860 dev_dbg(&client->dev, "pixels_per_line: %d:\n", dev->pixels_per_line);
1861 dev_dbg(&client->dev, "line per frame: %d:\n", dev->lines_per_frame);
1862 dev_dbg(&client->dev, "pix freq: %d:\n", dev->vt_pix_clk_freq_mhz);
1863 dev_dbg(&client->dev, "init fps: %d:\n", dev->vt_pix_clk_freq_mhz /
1864 dev->pixels_per_line / dev->lines_per_frame);
1865 dev_dbg(&client->dev, "HBlank: %d nS:\n",
1866 1000 * (dev->pixels_per_line - width) /
1867 (dev->vt_pix_clk_freq_mhz / 1000000));
1868 dev_dbg(&client->dev, "VBlank: %d uS:\n",
1869 (dev->lines_per_frame - height) * dev->pixels_per_line /
1870 (dev->vt_pix_clk_freq_mhz / 1000000));
1871 }
1872
1873 /*
1874 * imx stream on/off
1875 */
1876 static int imx_s_stream(struct v4l2_subdev *sd, int enable)
1877 {
1878 int ret;
1879 struct i2c_client *client = v4l2_get_subdevdata(sd);
1880 struct imx_device *dev = to_imx_sensor(sd);
1881
1882 mutex_lock(&dev->input_lock);
1883 if (enable) {
1884 /* Noise reduction & dead pixel applied before streaming */
1885 if (dev->fw == NULL) {
1886 dev_warn(&client->dev, "No MSR loaded from library");
1887 } else {
1888 ret = apply_msr_data(client, dev->fw);
1889 if (ret) {
1890 mutex_unlock(&dev->input_lock);
1891 return ret;
1892 }
1893 }
1894 ret = imx_test_pattern(sd);
1895 if (ret) {
1896 v4l2_err(client, "Configure test pattern failed.\n");
1897 mutex_unlock(&dev->input_lock);
1898 return ret;
1899 }
1900 __imx_print_timing(sd);
1901 ret = imx_write_reg_array(client, imx_streaming);
1902 if (ret != 0) {
1903 v4l2_err(client, "write_reg_array err\n");
1904 mutex_unlock(&dev->input_lock);
1905 return ret;
1906 }
1907 dev->streaming = 1;
1908 if (dev->vcm_driver && dev->vcm_driver->t_focus_abs_init)
1909 dev->vcm_driver->t_focus_abs_init(sd);
1910 } else {
1911 ret = imx_write_reg_array(client, imx_soft_standby);
1912 if (ret != 0) {
1913 v4l2_err(client, "write_reg_array err\n");
1914 mutex_unlock(&dev->input_lock);
1915 return ret;
1916 }
1917 dev->streaming = 0;
1918 dev->targetfps = 0;
1919 }
1920 mutex_unlock(&dev->input_lock);
1921
1922 return 0;
1923 }
1924
1925 static int __update_imx_device_settings(struct imx_device *dev, u16 sensor_id)
1926 {
1927 /* IMX on other platform is not supported yet */
1928 return -EINVAL;
1929 }
1930
1931 static int imx_s_config(struct v4l2_subdev *sd,
1932 int irq, void *pdata)
1933 {
1934 struct imx_device *dev = to_imx_sensor(sd);
1935 struct i2c_client *client = v4l2_get_subdevdata(sd);
1936 u8 sensor_revision;
1937 u16 sensor_id;
1938 int ret;
1939 if (pdata == NULL)
1940 return -ENODEV;
1941
1942 dev->platform_data = pdata;
1943
1944 mutex_lock(&dev->input_lock);
1945
1946 if (dev->platform_data->platform_init) {
1947 ret = dev->platform_data->platform_init(client);
1948 if (ret) {
1949 mutex_unlock(&dev->input_lock);
1950 dev_err(&client->dev, "imx platform init err\n");
1951 return ret;
1952 }
1953 }
1954 /*
1955 * power off the module first.
1956 *
1957 * As first power on by board have undecided state of power/gpio pins.
1958 */
1959 ret = __imx_s_power(sd, 0);
1960 if (ret) {
1961 v4l2_err(client, "imx power-down err.\n");
1962 mutex_unlock(&dev->input_lock);
1963 return ret;
1964 }
1965
1966 ret = __imx_s_power(sd, 1);
1967 if (ret) {
1968 v4l2_err(client, "imx power-up err.\n");
1969 mutex_unlock(&dev->input_lock);
1970 return ret;
1971 }
1972
1973 ret = dev->platform_data->csi_cfg(sd, 1);
1974 if (ret)
1975 goto fail_csi_cfg;
1976
1977 /* config & detect sensor */
1978 ret = imx_detect(client, &sensor_id, &sensor_revision);
1979 if (ret) {
1980 v4l2_err(client, "imx_detect err s_config.\n");
1981 goto fail_detect;
1982 }
1983
1984 dev->sensor_id = sensor_id;
1985 dev->sensor_revision = sensor_revision;
1986
1987 /* Resolution settings depend on sensor type and platform */
1988 ret = __update_imx_device_settings(dev, dev->sensor_id);
1989 if (ret)
1990 goto fail_detect;
1991 /* Read sensor's OTP data */
1992 dev->otp_data = dev->otp_driver->otp_read(sd,
1993 dev->otp_driver->dev_addr, dev->otp_driver->start_addr,
1994 dev->otp_driver->size);
1995
1996 /* power off sensor */
1997 ret = __imx_s_power(sd, 0);
1998
1999 mutex_unlock(&dev->input_lock);
2000 if (ret)
2001 v4l2_err(client, "imx power-down err.\n");
2002
2003 return ret;
2004
2005 fail_detect:
2006 dev->platform_data->csi_cfg(sd, 0);
2007 fail_csi_cfg:
2008 __imx_s_power(sd, 0);
2009 if (dev->platform_data->platform_deinit)
2010 dev->platform_data->platform_deinit();
2011 mutex_unlock(&dev->input_lock);
2012 dev_err(&client->dev, "sensor power-gating failed\n");
2013 return ret;
2014 }
2015
2016 static int
2017 imx_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2018 struct v4l2_subdev_mbus_code_enum *code)
2019 {
2020 struct imx_device *dev = to_imx_sensor(sd);
2021 if (code->index >= MAX_FMTS)
2022 return -EINVAL;
2023
2024 mutex_lock(&dev->input_lock);
2025 code->code = dev->format.code;
2026 mutex_unlock(&dev->input_lock);
2027 return 0;
2028 }
2029
2030 static int
2031 imx_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2032 struct v4l2_subdev_frame_size_enum *fse)
2033 {
2034 int index = fse->index;
2035 struct imx_device *dev = to_imx_sensor(sd);
2036
2037 mutex_lock(&dev->input_lock);
2038 if (index >= dev->entries_curr_table) {
2039 mutex_unlock(&dev->input_lock);
2040 return -EINVAL;
2041 }
2042
2043 fse->min_width = dev->curr_res_table[index].width;
2044 fse->min_height = dev->curr_res_table[index].height;
2045 fse->max_width = dev->curr_res_table[index].width;
2046 fse->max_height = dev->curr_res_table[index].height;
2047 mutex_unlock(&dev->input_lock);
2048 return 0;
2049 }
2050
2051 static int
2052 imx_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *param)
2053 {
2054 struct imx_device *dev = to_imx_sensor(sd);
2055
2056 mutex_lock(&dev->input_lock);
2057 dev->run_mode = param->parm.capture.capturemode;
2058
2059 switch (dev->run_mode) {
2060 case CI_MODE_VIDEO:
2061 dev->curr_res_table = dev->mode_tables->res_video;
2062 dev->entries_curr_table = dev->mode_tables->n_res_video;
2063 break;
2064 case CI_MODE_STILL_CAPTURE:
2065 dev->curr_res_table = dev->mode_tables->res_still;
2066 dev->entries_curr_table = dev->mode_tables->n_res_still;
2067 break;
2068 default:
2069 dev->curr_res_table = dev->mode_tables->res_preview;
2070 dev->entries_curr_table = dev->mode_tables->n_res_preview;
2071 }
2072 mutex_unlock(&dev->input_lock);
2073 return 0;
2074 }
2075
2076 static int imx_g_frame_interval(struct v4l2_subdev *sd,
2077 struct v4l2_subdev_frame_interval *interval)
2078 {
2079 struct imx_device *dev = to_imx_sensor(sd);
2080
2081 mutex_lock(&dev->input_lock);
2082 interval->interval.denominator = dev->fps;
2083 interval->interval.numerator = 1;
2084 mutex_unlock(&dev->input_lock);
2085 return 0;
2086 }
2087
2088 static int __imx_s_frame_interval(struct v4l2_subdev *sd,
2089 struct v4l2_subdev_frame_interval *interval)
2090 {
2091 struct imx_device *dev = to_imx_sensor(sd);
2092 struct i2c_client *client = v4l2_get_subdevdata(sd);
2093 const struct imx_resolution *res =
2094 &dev->curr_res_table[dev->fmt_idx];
2095 struct camera_mipi_info *imx_info = NULL;
2096 unsigned short pixels_per_line;
2097 unsigned short lines_per_frame;
2098 unsigned int fps_index;
2099 int fps;
2100 int ret = 0;
2101
2102
2103 imx_info = v4l2_get_subdev_hostdata(sd);
2104 if (imx_info == NULL)
2105 return -EINVAL;
2106
2107 if (!interval->interval.numerator)
2108 interval->interval.numerator = 1;
2109
2110 fps = interval->interval.denominator / interval->interval.numerator;
2111
2112 if (!fps)
2113 return -EINVAL;
2114
2115 dev->targetfps = fps;
2116 /* No need to proceed further if we are not streaming */
2117 if (!dev->streaming)
2118 return 0;
2119
2120 /* Ignore if we are already using the required FPS. */
2121 if (fps == dev->fps)
2122 return 0;
2123
2124 /*
2125 * Start here, sensor is already streaming, so adjust fps dynamically
2126 */
2127 fps_index = __imx_above_nearest_fps_index(fps, res->fps_options);
2128 if (fps > res->fps_options[fps_index].fps) {
2129 /*
2130 * if does not have high fps setting, not support increase fps
2131 * by adjust lines per frame.
2132 */
2133 dev_err(&client->dev, "Could not support fps: %d.\n", fps);
2134 return -EINVAL;
2135 }
2136
2137 if (res->fps_options[fps_index].regs &&
2138 res->fps_options[fps_index].regs != dev->regs) {
2139 /*
2140 * if need a new setting, but the new setting has difference
2141 * with current setting, not use this one, as may have
2142 * unexpected result, e.g. PLL, IQ.
2143 */
2144 dev_dbg(&client->dev,
2145 "Sensor is streaming, not apply new sensor setting\n");
2146 if (fps > res->fps_options[dev->fps_index].fps) {
2147 /*
2148 * Does not support increase fps based on low fps
2149 * setting, as the high fps setting could not be used,
2150 * and fps requested is above current setting fps.
2151 */
2152 dev_warn(&client->dev,
2153 "Could not support fps: %d, keep current: %d.\n",
2154 fps, dev->fps);
2155 return 0;
2156 }
2157 } else {
2158 dev->fps_index = fps_index;
2159 dev->fps = res->fps_options[dev->fps_index].fps;
2160 }
2161
2162 /* Update the new frametimings based on FPS */
2163 pixels_per_line = res->fps_options[dev->fps_index].pixels_per_line;
2164 lines_per_frame = res->fps_options[dev->fps_index].lines_per_frame;
2165
2166 if (fps > res->fps_options[fps_index].fps) {
2167 /*
2168 * if does not have high fps setting, not support increase fps
2169 * by adjust lines per frame.
2170 */
2171 dev_warn(&client->dev, "Could not support fps: %d. Use:%d.\n",
2172 fps, res->fps_options[fps_index].fps);
2173 goto done;
2174 }
2175
2176 /* if the new setting does not match exactly */
2177 if (dev->fps != fps) {
2178 #define MAX_LINES_PER_FRAME 0xffff
2179 dev_dbg(&client->dev, "adjusting fps using lines_per_frame\n");
2180 /*
2181 * FIXME!
2182 * 1: check DS on max value of lines_per_frame
2183 * 2: consider use pixel per line for more range?
2184 */
2185 if (dev->lines_per_frame * dev->fps / fps >
2186 MAX_LINES_PER_FRAME) {
2187 dev_warn(&client->dev,
2188 "adjust lines_per_frame out of range, try to use max value.\n");
2189 lines_per_frame = MAX_LINES_PER_FRAME;
2190 } else {
2191 lines_per_frame = lines_per_frame * dev->fps / fps;
2192 }
2193 }
2194 done:
2195 /* Update the new frametimings based on FPS */
2196 dev->pixels_per_line = pixels_per_line;
2197 dev->lines_per_frame = lines_per_frame;
2198
2199 /* Update the new values so that user side knows the current settings */
2200 ret = __imx_update_exposure_timing(client,
2201 dev->coarse_itg, dev->pixels_per_line, dev->lines_per_frame);
2202 if (ret)
2203 return ret;
2204
2205 dev->fps = fps;
2206
2207 ret = imx_get_intg_factor(client, imx_info, dev->regs);
2208 if (ret)
2209 return ret;
2210
2211 interval->interval.denominator = res->fps_options[dev->fps_index].fps;
2212 interval->interval.numerator = 1;
2213 __imx_print_timing(sd);
2214
2215 return ret;
2216 }
2217
2218 static int imx_s_frame_interval(struct v4l2_subdev *sd,
2219 struct v4l2_subdev_frame_interval *interval)
2220 {
2221 struct imx_device *dev = to_imx_sensor(sd);
2222 int ret;
2223
2224 mutex_lock(&dev->input_lock);
2225 ret = __imx_s_frame_interval(sd, interval);
2226 mutex_unlock(&dev->input_lock);
2227
2228 return ret;
2229 }
2230 static int imx_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
2231 {
2232 struct imx_device *dev = to_imx_sensor(sd);
2233
2234 mutex_lock(&dev->input_lock);
2235 *frames = dev->curr_res_table[dev->fmt_idx].skip_frames;
2236 mutex_unlock(&dev->input_lock);
2237
2238 return 0;
2239 }
2240
2241 static const struct v4l2_subdev_sensor_ops imx_sensor_ops = {
2242 .g_skip_frames = imx_g_skip_frames,
2243 };
2244
2245 static const struct v4l2_subdev_video_ops imx_video_ops = {
2246 .s_stream = imx_s_stream,
2247 .s_parm = imx_s_parm,
2248 .g_frame_interval = imx_g_frame_interval,
2249 .s_frame_interval = imx_s_frame_interval,
2250 };
2251
2252 static const struct v4l2_subdev_core_ops imx_core_ops = {
2253 .s_power = imx_s_power,
2254 .ioctl = imx_ioctl,
2255 .init = imx_init,
2256 };
2257
2258 static const struct v4l2_subdev_pad_ops imx_pad_ops = {
2259 .enum_mbus_code = imx_enum_mbus_code,
2260 .enum_frame_size = imx_enum_frame_size,
2261 .get_fmt = imx_get_fmt,
2262 .set_fmt = imx_set_fmt,
2263 };
2264
2265 static const struct v4l2_subdev_ops imx_ops = {
2266 .core = &imx_core_ops,
2267 .video = &imx_video_ops,
2268 .pad = &imx_pad_ops,
2269 .sensor = &imx_sensor_ops,
2270 };
2271
2272 static const struct media_entity_operations imx_entity_ops = {
2273 .link_setup = NULL,
2274 };
2275
2276 static int imx_remove(struct i2c_client *client)
2277 {
2278 struct v4l2_subdev *sd = i2c_get_clientdata(client);
2279 struct imx_device *dev = to_imx_sensor(sd);
2280
2281 if (dev->platform_data->platform_deinit)
2282 dev->platform_data->platform_deinit();
2283
2284 media_entity_cleanup(&dev->sd.entity);
2285 v4l2_ctrl_handler_free(&dev->ctrl_handler);
2286 dev->platform_data->csi_cfg(sd, 0);
2287 v4l2_device_unregister_subdev(sd);
2288 release_msr_list(client, dev->fw);
2289 kfree(dev);
2290
2291 return 0;
2292 }
2293
2294 static int __imx_init_ctrl_handler(struct imx_device *dev)
2295 {
2296 struct v4l2_ctrl_handler *hdl;
2297 int i;
2298
2299 hdl = &dev->ctrl_handler;
2300
2301 v4l2_ctrl_handler_init(&dev->ctrl_handler, ARRAY_SIZE(imx_controls));
2302
2303 for (i = 0; i < ARRAY_SIZE(imx_controls); i++)
2304 v4l2_ctrl_new_custom(&dev->ctrl_handler,
2305 &imx_controls[i], NULL);
2306
2307 dev->pixel_rate = v4l2_ctrl_find(&dev->ctrl_handler,
2308 V4L2_CID_PIXEL_RATE);
2309 dev->h_blank = v4l2_ctrl_find(&dev->ctrl_handler,
2310 V4L2_CID_HBLANK);
2311 dev->v_blank = v4l2_ctrl_find(&dev->ctrl_handler,
2312 V4L2_CID_VBLANK);
2313 dev->link_freq = v4l2_ctrl_find(&dev->ctrl_handler,
2314 V4L2_CID_LINK_FREQ);
2315 dev->h_flip = v4l2_ctrl_find(&dev->ctrl_handler,
2316 V4L2_CID_HFLIP);
2317 dev->v_flip = v4l2_ctrl_find(&dev->ctrl_handler,
2318 V4L2_CID_VFLIP);
2319 dev->tp_mode = v4l2_ctrl_find(&dev->ctrl_handler,
2320 V4L2_CID_TEST_PATTERN);
2321 dev->tp_r = v4l2_ctrl_find(&dev->ctrl_handler,
2322 V4L2_CID_TEST_PATTERN_COLOR_R);
2323 dev->tp_gr = v4l2_ctrl_find(&dev->ctrl_handler,
2324 V4L2_CID_TEST_PATTERN_COLOR_GR);
2325 dev->tp_gb = v4l2_ctrl_find(&dev->ctrl_handler,
2326 V4L2_CID_TEST_PATTERN_COLOR_GB);
2327 dev->tp_b = v4l2_ctrl_find(&dev->ctrl_handler,
2328 V4L2_CID_TEST_PATTERN_COLOR_B);
2329
2330 if (dev->ctrl_handler.error || dev->pixel_rate == NULL
2331 || dev->h_blank == NULL || dev->v_blank == NULL
2332 || dev->h_flip == NULL || dev->v_flip == NULL
2333 || dev->link_freq == NULL) {
2334 return dev->ctrl_handler.error;
2335 }
2336
2337 dev->ctrl_handler.lock = &dev->input_lock;
2338 dev->sd.ctrl_handler = hdl;
2339 v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2340
2341 return 0;
2342 }
2343
2344 static void imx_update_reg_info(struct imx_device *dev)
2345 {
2346 if (dev->sensor_id == IMX219_ID) {
2347 dev->reg_addr = &imx219_addr;
2348 dev->param_hold = imx219_param_hold;
2349 dev->param_update = imx219_param_update;
2350 } else {
2351 dev->reg_addr = &imx_addr;
2352 dev->param_hold = imx_param_hold;
2353 dev->param_update = imx_param_update;
2354 }
2355 }
2356
2357 static int imx_probe(struct i2c_client *client,
2358 const struct i2c_device_id *id)
2359 {
2360 struct imx_device *dev;
2361 struct camera_mipi_info *imx_info = NULL;
2362 int ret;
2363 char *msr_file_name = NULL;
2364
2365 /* allocate sensor device & init sub device */
2366 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2367 if (!dev) {
2368 v4l2_err(client, "%s: out of memory\n", __func__);
2369 return -ENOMEM;
2370 }
2371
2372 mutex_init(&dev->input_lock);
2373
2374 dev->i2c_id = id->driver_data;
2375 dev->fmt_idx = 0;
2376 dev->sensor_id = IMX_ID_DEFAULT;
2377 dev->vcm_driver = &imx_vcms[IMX_ID_DEFAULT];
2378 dev->digital_gain = 256;
2379
2380 v4l2_i2c_subdev_init(&(dev->sd), client, &imx_ops);
2381
2382 if (client->dev.platform_data) {
2383 ret = imx_s_config(&dev->sd, client->irq,
2384 client->dev.platform_data);
2385 if (ret)
2386 goto out_free;
2387 }
2388 imx_info = v4l2_get_subdev_hostdata(&dev->sd);
2389
2390 /*
2391 * sd->name is updated with sensor driver name by the v4l2.
2392 * change it to sensor name in this case.
2393 */
2394 imx_update_reg_info(dev);
2395 snprintf(dev->sd.name, sizeof(dev->sd.name), "%s%x %d-%04x",
2396 IMX_SUBDEV_PREFIX, dev->sensor_id,
2397 i2c_adapter_id(client->adapter), client->addr);
2398
2399 ret = __imx_init_ctrl_handler(dev);
2400 if (ret)
2401 goto out_ctrl_handler_free;
2402
2403 dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
2404 dev->pad.flags = MEDIA_PAD_FL_SOURCE;
2405 dev->format.code = imx_translate_bayer_order(
2406 imx_info->raw_bayer_order);
2407 dev->sd.entity.ops = &imx_entity_ops;
2408 dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
2409
2410 ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
2411 if (ret) {
2412 imx_remove(client);
2413 return ret;
2414 }
2415
2416 /* Load the Noise reduction, Dead pixel registers from cpf file*/
2417 if (dev->platform_data->msr_file_name != NULL)
2418 msr_file_name = dev->platform_data->msr_file_name();
2419 if (msr_file_name) {
2420 ret = load_msr_list(client, msr_file_name, &dev->fw);
2421 if (ret) {
2422 imx_remove(client);
2423 return ret;
2424 }
2425 } else {
2426 dev_warn(&client->dev, "Drvb file not present");
2427 }
2428
2429 return ret;
2430
2431 out_ctrl_handler_free:
2432 v4l2_ctrl_handler_free(&dev->ctrl_handler);
2433
2434 out_free:
2435 v4l2_device_unregister_subdev(&dev->sd);
2436 kfree(dev);
2437 return ret;
2438 }
2439
2440 static const struct i2c_device_id imx_ids[] = {
2441 {IMX_NAME_175, IMX175_ID},
2442 {IMX_NAME_135, IMX135_ID},
2443 {IMX_NAME_135_FUJI, IMX135_FUJI_ID},
2444 {IMX_NAME_134, IMX134_ID},
2445 {IMX_NAME_132, IMX132_ID},
2446 {IMX_NAME_208, IMX208_ID},
2447 {IMX_NAME_219, IMX219_ID},
2448 {IMX_NAME_227, IMX227_ID},
2449 {}
2450 };
2451
2452 MODULE_DEVICE_TABLE(i2c, imx_ids);
2453
2454 static struct i2c_driver imx_driver = {
2455 .driver = {
2456 .name = IMX_DRIVER,
2457 },
2458 .probe = imx_probe,
2459 .remove = imx_remove,
2460 .id_table = imx_ids,
2461 };
2462
2463 static __init int init_imx(void)
2464 {
2465 return i2c_add_driver(&imx_driver);
2466 }
2467
2468 static __exit void exit_imx(void)
2469 {
2470 i2c_del_driver(&imx_driver);
2471 }
2472
2473 module_init(init_imx);
2474 module_exit(exit_imx);
2475
2476 MODULE_DESCRIPTION("A low-level driver for Sony IMX sensors");
2477 MODULE_AUTHOR("Shenbo Huang <shenbo.huang@intel.com>");
2478 MODULE_LICENSE("GPL");
2479
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