summaryrefslogtreecommitdiff
path: root/drivers/media/platform/exynos4-is/fimc-isp.c
blob: f3c6136aa5b4767af56e4de4078af6cddfa48735 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
/*
 * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
 *
 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
 *
 * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
 *          Younghwan Joo <yhwan.joo@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__

#include <linux/device.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <media/v4l2-device.h>

#include "media-dev.h"
#include "fimc-is-command.h"
#include "fimc-is-param.h"
#include "fimc-is-regs.h"
#include "fimc-is.h"

int fimc_isp_debug;
module_param_named(debug_isp, fimc_isp_debug, int, S_IRUGO | S_IWUSR);

static const struct fimc_fmt fimc_isp_formats[FIMC_ISP_NUM_FORMATS] = {
	{
		.name		= "RAW8 (GRBG)",
		.fourcc		= V4L2_PIX_FMT_SGRBG8,
		.depth		= { 8 },
		.color		= FIMC_FMT_RAW8,
		.memplanes	= 1,
		.mbus_code	= V4L2_MBUS_FMT_SGRBG8_1X8,
	}, {
		.name		= "RAW10 (GRBG)",
		.fourcc		= V4L2_PIX_FMT_SGRBG10,
		.depth		= { 10 },
		.color		= FIMC_FMT_RAW10,
		.memplanes	= 1,
		.mbus_code	= V4L2_MBUS_FMT_SGRBG10_1X10,
	}, {
		.name		= "RAW12 (GRBG)",
		.fourcc		= V4L2_PIX_FMT_SGRBG12,
		.depth		= { 12 },
		.color		= FIMC_FMT_RAW12,
		.memplanes	= 1,
		.mbus_code	= V4L2_MBUS_FMT_SGRBG12_1X12,
	},
};

/**
 * fimc_isp_find_format - lookup color format by fourcc or media bus code
 * @pixelformat: fourcc to match, ignored if null
 * @mbus_code: media bus code to match, ignored if null
 * @index: index to the fimc_isp_formats array, ignored if negative
 */
const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
					const u32 *mbus_code, int index)
{
	const struct fimc_fmt *fmt, *def_fmt = NULL;
	unsigned int i;
	int id = 0;

	if (index >= (int)ARRAY_SIZE(fimc_isp_formats))
		return NULL;

	for (i = 0; i < ARRAY_SIZE(fimc_isp_formats); ++i) {
		fmt = &fimc_isp_formats[i];
		if (pixelformat && fmt->fourcc == *pixelformat)
			return fmt;
		if (mbus_code && fmt->mbus_code == *mbus_code)
			return fmt;
		if (index == id)
			def_fmt = fmt;
		id++;
	}
	return def_fmt;
}

void fimc_isp_irq_handler(struct fimc_is *is)
{
	is->i2h_cmd.args[0] = mcuctl_read(is, MCUCTL_REG_ISSR(20));
	is->i2h_cmd.args[1] = mcuctl_read(is, MCUCTL_REG_ISSR(21));

	fimc_is_fw_clear_irq1(is, FIMC_IS_INT_FRAME_DONE_ISP);

	/* TODO: Complete ISP DMA interrupt handler */
	wake_up(&is->irq_queue);
}

/* Capture subdev media entity operations */
static int fimc_is_link_setup(struct media_entity *entity,
				const struct media_pad *local,
				const struct media_pad *remote, u32 flags)
{
	return 0;
}

static const struct media_entity_operations fimc_is_subdev_media_ops = {
	.link_setup = fimc_is_link_setup,
};

static int fimc_is_subdev_enum_mbus_code(struct v4l2_subdev *sd,
				struct v4l2_subdev_fh *fh,
				struct v4l2_subdev_mbus_code_enum *code)
{
	const struct fimc_fmt *fmt;

	fmt = fimc_isp_find_format(NULL, NULL, code->index);
	if (!fmt)
		return -EINVAL;
	code->code = fmt->mbus_code;
	return 0;
}

static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
				   struct v4l2_subdev_fh *fh,
				   struct v4l2_subdev_format *fmt)
{
	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
	struct v4l2_mbus_framefmt *mf = &fmt->format;

	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
		*mf = *v4l2_subdev_get_try_format(fh, fmt->pad);
		return 0;
	}

	mf->colorspace = V4L2_COLORSPACE_SRGB;

	mutex_lock(&isp->subdev_lock);

	if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
		/* ISP OTF input image format */
		*mf = isp->sink_fmt;
	} else {
		/* ISP OTF output image format */
		*mf = isp->src_fmt;

		if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
			mf->colorspace = V4L2_COLORSPACE_JPEG;
			mf->code = V4L2_MBUS_FMT_YUV10_1X30;
		}
	}

	mutex_unlock(&isp->subdev_lock);

	isp_dbg(1, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n", __func__,
		fmt->pad, mf->code, mf->width, mf->height);

	return 0;
}

static void __isp_subdev_try_format(struct fimc_isp *isp,
				    struct v4l2_subdev_fh *fh,
				    struct v4l2_subdev_format *fmt)
{
	struct v4l2_mbus_framefmt *mf = &fmt->format;
	struct v4l2_mbus_framefmt *format;

	mf->colorspace = V4L2_COLORSPACE_SRGB;

	if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
		v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
				FIMC_ISP_SINK_WIDTH_MAX, 0,
				&mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
				FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
		mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
	} else {
		if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
			format = v4l2_subdev_get_try_format(fh,
						FIMC_ISP_SD_PAD_SINK);
		else
			format = &isp->sink_fmt;

		/* Allow changing format only on sink pad */
		mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
		mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;

		if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
			mf->code = V4L2_MBUS_FMT_YUV10_1X30;
			mf->colorspace = V4L2_COLORSPACE_JPEG;
		} else {
			mf->code = format->code;
		}
	}
}

static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
				   struct v4l2_subdev_fh *fh,
				   struct v4l2_subdev_format *fmt)
{
	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
	struct fimc_is *is = fimc_isp_to_is(isp);
	struct v4l2_mbus_framefmt *mf = &fmt->format;
	int ret = 0;

	isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
		 __func__, fmt->pad, mf->code, mf->width, mf->height);

	mutex_lock(&isp->subdev_lock);
	__isp_subdev_try_format(isp, fh, fmt);

	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
		mf = v4l2_subdev_get_try_format(fh, fmt->pad);
		*mf = fmt->format;

		/* Propagate format to the source pads */
		if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
			struct v4l2_subdev_format format = *fmt;
			unsigned int pad;

			for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
					pad < FIMC_ISP_SD_PADS_NUM; pad++) {
				format.pad = pad;
				__isp_subdev_try_format(isp, fh, &format);
				mf = v4l2_subdev_get_try_format(fh, pad);
				*mf = format.format;
			}
		}
	} else {
		if (sd->entity.stream_count == 0) {
			if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
				struct v4l2_subdev_format format = *fmt;

				isp->sink_fmt = *mf;

				format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
				__isp_subdev_try_format(isp, fh, &format);

				isp->src_fmt = format.format;
				__is_set_frame_size(is, &isp->src_fmt);
			} else {
				isp->src_fmt = *mf;
			}
		} else {
			ret = -EBUSY;
		}
	}

	mutex_unlock(&isp->subdev_lock);
	return ret;
}

static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
{
	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
	struct fimc_is *is = fimc_isp_to_is(isp);
	int ret;

	isp_dbg(1, sd, "%s: on: %d\n", __func__, on);

	if (!test_bit(IS_ST_INIT_DONE, &is->state))
		return -EBUSY;

	fimc_is_mem_barrier();

	if (on) {
		if (__get_pending_param_count(is)) {
			ret = fimc_is_itf_s_param(is, true);
			if (ret < 0)
				return ret;
		}

		isp_dbg(1, sd, "changing mode to %d\n", is->config_index);

		ret = fimc_is_itf_mode_change(is);
		if (ret)
			return -EINVAL;

		clear_bit(IS_ST_STREAM_ON, &is->state);
		fimc_is_hw_stream_on(is);
		ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
					 FIMC_IS_CONFIG_TIMEOUT);
		if (ret < 0) {
			v4l2_err(sd, "stream on timeout\n");
			return ret;
		}
	} else {
		clear_bit(IS_ST_STREAM_OFF, &is->state);
		fimc_is_hw_stream_off(is);
		ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
					 FIMC_IS_CONFIG_TIMEOUT);
		if (ret < 0) {
			v4l2_err(sd, "stream off timeout\n");
			return ret;
		}
		is->setfile.sub_index = 0;
	}

	return 0;
}

static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
{
	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
	struct fimc_is *is = fimc_isp_to_is(isp);
	int ret = 0;

	pr_debug("on: %d\n", on);

	if (on) {
		ret = pm_runtime_get_sync(&is->pdev->dev);
		if (ret < 0)
			return ret;
		set_bit(IS_ST_PWR_ON, &is->state);

		ret = fimc_is_start_firmware(is);
		if (ret < 0) {
			v4l2_err(sd, "firmware booting failed\n");
			pm_runtime_put(&is->pdev->dev);
			return ret;
		}
		set_bit(IS_ST_PWR_SUBIP_ON, &is->state);

		ret = fimc_is_hw_initialize(is);
	} else {
		/* Close sensor */
		if (!test_bit(IS_ST_PWR_ON, &is->state)) {
			fimc_is_hw_close_sensor(is, 0);

			ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
						 FIMC_IS_CONFIG_TIMEOUT);
			if (ret < 0) {
				v4l2_err(sd, "sensor close timeout\n");
				return ret;
			}
		}

		/* SUB IP power off */
		if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
			fimc_is_hw_subip_power_off(is);
			ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
						 FIMC_IS_CONFIG_TIMEOUT);
			if (ret < 0) {
				v4l2_err(sd, "sub-IP power off timeout\n");
				return ret;
			}
		}

		fimc_is_cpu_set_power(is, 0);
		pm_runtime_put_sync(&is->pdev->dev);

		clear_bit(IS_ST_PWR_ON, &is->state);
		clear_bit(IS_ST_INIT_DONE, &is->state);
		is->state = 0;
		is->config[is->config_index].p_region_index[0] = 0;
		is->config[is->config_index].p_region_index[1] = 0;
		set_bit(IS_ST_IDLE, &is->state);
		wmb();
	}

	return ret;
}

static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
				struct v4l2_subdev_fh *fh)
{
	struct v4l2_mbus_framefmt fmt;
	struct v4l2_mbus_framefmt *format;

	format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SINK);

	fmt.colorspace = V4L2_COLORSPACE_SRGB;
	fmt.code = fimc_isp_formats[0].mbus_code;
	fmt.width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH;
	fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT;
	fmt.field = V4L2_FIELD_NONE;
	*format = fmt;

	format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SRC_FIFO);
	fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
	fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
	*format = fmt;

	format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SRC_DMA);
	*format = fmt;

	return 0;
}

static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
	.open = fimc_isp_subdev_open,
};

static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
	.enum_mbus_code = fimc_is_subdev_enum_mbus_code,
	.get_fmt = fimc_isp_subdev_get_fmt,
	.set_fmt = fimc_isp_subdev_set_fmt,
};

static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
	.s_stream = fimc_isp_subdev_s_stream,
};

static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
	.s_power = fimc_isp_subdev_s_power,
};

static struct v4l2_subdev_ops fimc_is_subdev_ops = {
	.core = &fimc_is_core_ops,
	.video = &fimc_is_subdev_video_ops,
	.pad = &fimc_is_subdev_pad_ops,
};

static int __ctrl_set_white_balance(struct fimc_is *is, int value)
{
	switch (value) {
	case V4L2_WHITE_BALANCE_AUTO:
		__is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
		break;
	case V4L2_WHITE_BALANCE_DAYLIGHT:
		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
					ISP_AWB_ILLUMINATION_DAYLIGHT);
		break;
	case V4L2_WHITE_BALANCE_CLOUDY:
		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
					ISP_AWB_ILLUMINATION_CLOUDY);
		break;
	case V4L2_WHITE_BALANCE_INCANDESCENT:
		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
					ISP_AWB_ILLUMINATION_TUNGSTEN);
		break;
	case V4L2_WHITE_BALANCE_FLUORESCENT:
		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
					ISP_AWB_ILLUMINATION_FLUORESCENT);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int __ctrl_set_aewb_lock(struct fimc_is *is,
				      struct v4l2_ctrl *ctrl)
{
	bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
	bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
	struct isp_param *isp = &is->is_p_region->parameter.isp;
	int cmd, ret;

	cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
	isp->aa.cmd = cmd;
	isp->aa.target = ISP_AA_TARGET_AE;
	fimc_is_set_param_bit(is, PARAM_ISP_AA);
	is->af.ae_lock_state = ae_lock;
	wmb();

	ret = fimc_is_itf_s_param(is, false);
	if (ret < 0)
		return ret;

	cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
	isp->aa.cmd = cmd;
	isp->aa.target = ISP_AA_TARGET_AE;
	fimc_is_set_param_bit(is, PARAM_ISP_AA);
	is->af.awb_lock_state = awb_lock;
	wmb();

	return fimc_is_itf_s_param(is, false);
}

/* Supported manual ISO values */
static const s64 iso_qmenu[] = {
	50, 100, 200, 400, 800,
};

static int __ctrl_set_iso(struct fimc_is *is, int value)
{
	unsigned int idx, iso;

	if (value == V4L2_ISO_SENSITIVITY_AUTO) {
		__is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
		return 0;
	}
	idx = is->isp.ctrls.iso->val;
	if (idx >= ARRAY_SIZE(iso_qmenu))
		return -EINVAL;

	iso = iso_qmenu[idx];
	__is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
	return 0;
}

static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
{
	unsigned int val;

	switch (value) {
	case V4L2_EXPOSURE_METERING_AVERAGE:
		val = ISP_METERING_COMMAND_AVERAGE;
		break;
	case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
		val = ISP_METERING_COMMAND_CENTER;
		break;
	case V4L2_EXPOSURE_METERING_SPOT:
		val = ISP_METERING_COMMAND_SPOT;
		break;
	case V4L2_EXPOSURE_METERING_MATRIX:
		val = ISP_METERING_COMMAND_MATRIX;
		break;
	default:
		return -EINVAL;
	}

	__is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
	return 0;
}

static int __ctrl_set_afc(struct fimc_is *is, int value)
{
	switch (value) {
	case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
		__is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
		break;
	case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
		__is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
		break;
	case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
		__is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
		break;
	case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
		__is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int __ctrl_set_image_effect(struct fimc_is *is, int value)
{
	static const u8 effects[][2] = {
		{ V4L2_COLORFX_NONE,	 ISP_IMAGE_EFFECT_DISABLE },
		{ V4L2_COLORFX_BW,	 ISP_IMAGE_EFFECT_MONOCHROME },
		{ V4L2_COLORFX_SEPIA,	 ISP_IMAGE_EFFECT_SEPIA },
		{ V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
		{ 16 /* TODO */,	 ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
	};
	int i;

	for (i = 0; i < ARRAY_SIZE(effects); i++) {
		if (effects[i][0] != value)
			continue;

		__is_set_isp_effect(is, effects[i][1]);
		return 0;
	}

	return -EINVAL;
}

static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
	struct fimc_is *is = fimc_isp_to_is(isp);
	bool set_param = true;
	int ret = 0;

	switch (ctrl->id) {
	case V4L2_CID_CONTRAST:
		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
				    ctrl->val);
		break;

	case V4L2_CID_SATURATION:
		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
				    ctrl->val);
		break;

	case V4L2_CID_SHARPNESS:
		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
				    ctrl->val);
		break;

	case V4L2_CID_EXPOSURE_ABSOLUTE:
		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
				    ctrl->val);
		break;

	case V4L2_CID_BRIGHTNESS:
		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
				    ctrl->val);
		break;

	case V4L2_CID_HUE:
		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
				    ctrl->val);
		break;

	case V4L2_CID_EXPOSURE_METERING:
		ret = __ctrl_set_metering(is, ctrl->val);
		break;

	case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
		ret = __ctrl_set_white_balance(is, ctrl->val);
		break;

	case V4L2_CID_3A_LOCK:
		ret = __ctrl_set_aewb_lock(is, ctrl);
		set_param = false;
		break;

	case V4L2_CID_ISO_SENSITIVITY_AUTO:
		ret = __ctrl_set_iso(is, ctrl->val);
		break;

	case V4L2_CID_POWER_LINE_FREQUENCY:
		ret = __ctrl_set_afc(is, ctrl->val);
		break;

	case V4L2_CID_COLORFX:
		__ctrl_set_image_effect(is, ctrl->val);
		break;

	default:
		ret = -EINVAL;
		break;
	}

	if (ret < 0) {
		v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
						ctrl->name, ctrl->val);
		return ret;
	}

	if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
		return fimc_is_itf_s_param(is, true);

	return 0;
}

static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
	.s_ctrl	= fimc_is_s_ctrl,
};

static void __isp_subdev_set_default_format(struct fimc_isp *isp)
{
	struct fimc_is *is = fimc_isp_to_is(isp);

	isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
				FIMC_ISP_CAC_MARGIN_WIDTH;
	isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
				FIMC_ISP_CAC_MARGIN_HEIGHT;
	isp->sink_fmt.code = V4L2_MBUS_FMT_SGRBG10_1X10;

	isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
	isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
	isp->src_fmt.code = V4L2_MBUS_FMT_SGRBG10_1X10;
	__is_set_frame_size(is, &isp->src_fmt);
}

int fimc_isp_subdev_create(struct fimc_isp *isp)
{
	const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
	struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
	struct v4l2_subdev *sd = &isp->subdev;
	struct fimc_isp_ctrls *ctrls = &isp->ctrls;
	int ret;

	mutex_init(&isp->subdev_lock);

	v4l2_subdev_init(sd, &fimc_is_subdev_ops);

	sd->owner = THIS_MODULE;
	sd->grp_id = GRP_ID_FIMC_IS;
	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
	snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");

	isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
	ret = media_entity_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
				isp->subdev_pads, 0);
	if (ret)
		return ret;

	v4l2_ctrl_handler_init(handler, 20);

	ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
						-2, 2, 1, 0);
	ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
						-4, 4, 1, 0);
	ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
						-2, 2, 1, 0);
	ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
						-2, 2, 1, 0);
	ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
						-2, 2, 1, 0);

	ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
					V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
					8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);

	ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
					V4L2_CID_EXPOSURE_ABSOLUTE,
					-4, 4, 1, 0);

	ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
					V4L2_CID_EXPOSURE_METERING, 3,
					~0xf, V4L2_EXPOSURE_METERING_AVERAGE);

	v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
					V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
					V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
	/* ISO sensitivity */
	ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
			V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
			V4L2_ISO_SENSITIVITY_AUTO);

	ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
			V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
			ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);

	ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
					V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);

	/* TODO: Add support for NEGATIVE_COLOR option */
	ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
			V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);

	if (handler->error) {
		media_entity_cleanup(&sd->entity);
		return handler->error;
	}

	v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
			V4L2_ISO_SENSITIVITY_MANUAL, false);

	sd->ctrl_handler = handler;
	sd->internal_ops = &fimc_is_subdev_internal_ops;
	sd->entity.ops = &fimc_is_subdev_media_ops;
	v4l2_set_subdevdata(sd, isp);

	__isp_subdev_set_default_format(isp);

	return 0;
}

void fimc_isp_subdev_destroy(struct fimc_isp *isp)
{
	struct v4l2_subdev *sd = &isp->subdev;

	v4l2_device_unregister_subdev(sd);
	media_entity_cleanup(&sd->entity);
	v4l2_ctrl_handler_free(&isp->ctrls.handler);
	v4l2_set_subdevdata(sd, NULL);
}