fimc-isp.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
  4 *
  5 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
  6 *
  7 * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
  8 *          Younghwan Joo <yhwan.joo@samsung.com>
  9 */
 10#define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
 11
 12#include <linux/device.h>
 13#include <linux/errno.h>
 14#include <linux/kernel.h>
 15#include <linux/list.h>
 16#include <linux/module.h>
 17#include <linux/platform_device.h>
 18#include <linux/printk.h>
 19#include <linux/pm_runtime.h>
 20#include <linux/slab.h>
 21#include <linux/types.h>
 22#include <media/v4l2-device.h>
 23
 24#include "media-dev.h"
 25#include "fimc-isp-video.h"
 26#include "fimc-is-command.h"
 27#include "fimc-is-param.h"
 28#include "fimc-is-regs.h"
 29#include "fimc-is.h"
 30
 31int fimc_isp_debug;
 32module_param_named(debug_isp, fimc_isp_debug, int, S_IRUGO | S_IWUSR);
 33
 34static const struct fimc_fmt fimc_isp_formats[FIMC_ISP_NUM_FORMATS] = {
 35	{
 36		.fourcc		= V4L2_PIX_FMT_SGRBG8,
 37		.depth		= { 8 },
 38		.color		= FIMC_FMT_RAW8,
 39		.memplanes	= 1,
 40		.mbus_code	= MEDIA_BUS_FMT_SGRBG8_1X8,
 41	}, {
 42		.fourcc		= V4L2_PIX_FMT_SGRBG10,
 43		.depth		= { 10 },
 44		.color		= FIMC_FMT_RAW10,
 45		.memplanes	= 1,
 46		.mbus_code	= MEDIA_BUS_FMT_SGRBG10_1X10,
 47	}, {
 48		.fourcc		= V4L2_PIX_FMT_SGRBG12,
 49		.depth		= { 12 },
 50		.color		= FIMC_FMT_RAW12,
 51		.memplanes	= 1,
 52		.mbus_code	= MEDIA_BUS_FMT_SGRBG12_1X12,
 53	},
 54};
 55
 56/**
 57 * fimc_isp_find_format - lookup color format by fourcc or media bus code
 58 * @pixelformat: fourcc to match, ignored if null
 59 * @mbus_code: media bus code to match, ignored if null
 60 * @index: index to the fimc_isp_formats array, ignored if negative
 61 */
 62const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
 63					const u32 *mbus_code, int index)
 64{
 65	const struct fimc_fmt *fmt, *def_fmt = NULL;
 66	unsigned int i;
 67	int id = 0;
 68
 69	if (index >= (int)ARRAY_SIZE(fimc_isp_formats))
 70		return NULL;
 71
 72	for (i = 0; i < ARRAY_SIZE(fimc_isp_formats); ++i) {
 73		fmt = &fimc_isp_formats[i];
 74		if (pixelformat && fmt->fourcc == *pixelformat)
 75			return fmt;
 76		if (mbus_code && fmt->mbus_code == *mbus_code)
 77			return fmt;
 78		if (index == id)
 79			def_fmt = fmt;
 80		id++;
 81	}
 82	return def_fmt;
 83}
 84
 85void fimc_isp_irq_handler(struct fimc_is *is)
 86{
 87	is->i2h_cmd.args[0] = mcuctl_read(is, MCUCTL_REG_ISSR(20));
 88	is->i2h_cmd.args[1] = mcuctl_read(is, MCUCTL_REG_ISSR(21));
 89
 90	fimc_is_fw_clear_irq1(is, FIMC_IS_INT_FRAME_DONE_ISP);
 91	fimc_isp_video_irq_handler(is);
 92
 93	wake_up(&is->irq_queue);
 94}
 95
 96/* Capture subdev media entity operations */
 97static int fimc_is_link_setup(struct media_entity *entity,
 98				const struct media_pad *local,
 99				const struct media_pad *remote, u32 flags)
100{
101	return 0;
102}
103
104static const struct media_entity_operations fimc_is_subdev_media_ops = {
105	.link_setup = fimc_is_link_setup,
106};
107
108static int fimc_is_subdev_enum_mbus_code(struct v4l2_subdev *sd,
109				struct v4l2_subdev_state *sd_state,
110				struct v4l2_subdev_mbus_code_enum *code)
111{
112	const struct fimc_fmt *fmt;
113
114	fmt = fimc_isp_find_format(NULL, NULL, code->index);
115	if (!fmt)
116		return -EINVAL;
117	code->code = fmt->mbus_code;
118	return 0;
119}
120
121static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
122				   struct v4l2_subdev_state *sd_state,
123				   struct v4l2_subdev_format *fmt)
124{
125	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
126	struct v4l2_mbus_framefmt *mf = &fmt->format;
127
128	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
129		*mf = *v4l2_subdev_state_get_format(sd_state, fmt->pad);
130		return 0;
131	}
132
133	mf->colorspace = V4L2_COLORSPACE_SRGB;
134
135	mutex_lock(&isp->subdev_lock);
136
137	if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
138		/* ISP OTF input image format */
139		*mf = isp->sink_fmt;
140	} else {
141		/* ISP OTF output image format */
142		*mf = isp->src_fmt;
143
144		if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
145			mf->colorspace = V4L2_COLORSPACE_JPEG;
146			mf->code = MEDIA_BUS_FMT_YUV10_1X30;
147		}
148	}
149
150	mutex_unlock(&isp->subdev_lock);
151
152	isp_dbg(1, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n", __func__,
153		fmt->pad, mf->code, mf->width, mf->height);
154
155	return 0;
156}
157
158static void __isp_subdev_try_format(struct fimc_isp *isp,
159				    struct v4l2_subdev_state *sd_state,
160				    struct v4l2_subdev_format *fmt)
161{
162	struct v4l2_mbus_framefmt *mf = &fmt->format;
163	struct v4l2_mbus_framefmt *format;
164
165	mf->colorspace = V4L2_COLORSPACE_SRGB;
166
167	if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
168		v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
169				FIMC_ISP_SINK_WIDTH_MAX, 0,
170				&mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
171				FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
172		mf->code = MEDIA_BUS_FMT_SGRBG10_1X10;
173	} else {
174		if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
175			format = v4l2_subdev_state_get_format(sd_state,
176							      FIMC_ISP_SD_PAD_SINK);
177		else
178			format = &isp->sink_fmt;
179
180		/* Allow changing format only on sink pad */
181		mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
182		mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;
183
184		if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
185			mf->code = MEDIA_BUS_FMT_YUV10_1X30;
186			mf->colorspace = V4L2_COLORSPACE_JPEG;
187		} else {
188			mf->code = format->code;
189		}
190	}
191}
192
193static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
194				   struct v4l2_subdev_state *sd_state,
195				   struct v4l2_subdev_format *fmt)
196{
197	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
198	struct fimc_is *is = fimc_isp_to_is(isp);
199	struct v4l2_mbus_framefmt *mf = &fmt->format;
200	int ret = 0;
201
202	isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
203		 __func__, fmt->pad, mf->code, mf->width, mf->height);
204
205	mutex_lock(&isp->subdev_lock);
206	__isp_subdev_try_format(isp, sd_state, fmt);
207
208	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
209		mf = v4l2_subdev_state_get_format(sd_state, fmt->pad);
210		*mf = fmt->format;
211
212		/* Propagate format to the source pads */
213		if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
214			struct v4l2_subdev_format format = *fmt;
215			unsigned int pad;
216
217			for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
218					pad < FIMC_ISP_SD_PADS_NUM; pad++) {
219				format.pad = pad;
220				__isp_subdev_try_format(isp, sd_state,
221							&format);
222				mf = v4l2_subdev_state_get_format(sd_state,
223								  pad);
224				*mf = format.format;
225			}
226		}
227	} else {
228		if (!media_entity_is_streaming(&sd->entity)) {
229			if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
230				struct v4l2_subdev_format format = *fmt;
231
232				isp->sink_fmt = *mf;
233
234				format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
235				__isp_subdev_try_format(isp, sd_state,
236							&format);
237
238				isp->src_fmt = format.format;
239				__is_set_frame_size(is, &isp->src_fmt);
240			} else {
241				isp->src_fmt = *mf;
242			}
243		} else {
244			ret = -EBUSY;
245		}
246	}
247
248	mutex_unlock(&isp->subdev_lock);
249	return ret;
250}
251
252static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
253{
254	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
255	struct fimc_is *is = fimc_isp_to_is(isp);
256	int ret;
257
258	isp_dbg(1, sd, "%s: on: %d\n", __func__, on);
259
260	if (!test_bit(IS_ST_INIT_DONE, &is->state))
261		return -EBUSY;
262
263	fimc_is_mem_barrier();
264
265	if (on) {
266		if (__get_pending_param_count(is)) {
267			ret = fimc_is_itf_s_param(is, true);
268			if (ret < 0)
269				return ret;
270		}
271
272		isp_dbg(1, sd, "changing mode to %d\n", is->config_index);
273
274		ret = fimc_is_itf_mode_change(is);
275		if (ret)
276			return -EINVAL;
277
278		clear_bit(IS_ST_STREAM_ON, &is->state);
279		fimc_is_hw_stream_on(is);
280		ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
281					 FIMC_IS_CONFIG_TIMEOUT);
282		if (ret < 0) {
283			v4l2_err(sd, "stream on timeout\n");
284			return ret;
285		}
286	} else {
287		clear_bit(IS_ST_STREAM_OFF, &is->state);
288		fimc_is_hw_stream_off(is);
289		ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
290					 FIMC_IS_CONFIG_TIMEOUT);
291		if (ret < 0) {
292			v4l2_err(sd, "stream off timeout\n");
293			return ret;
294		}
295		is->setfile.sub_index = 0;
296	}
297
298	return 0;
299}
300
301static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
302{
303	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
304	struct fimc_is *is = fimc_isp_to_is(isp);
305	int ret = 0;
306
307	pr_debug("on: %d\n", on);
308
309	if (on) {
310		ret = pm_runtime_resume_and_get(&is->pdev->dev);
311		if (ret < 0)
312			return ret;
313
314		set_bit(IS_ST_PWR_ON, &is->state);
315
316		ret = fimc_is_start_firmware(is);
317		if (ret < 0) {
318			v4l2_err(sd, "firmware booting failed\n");
319			pm_runtime_put(&is->pdev->dev);
320			return ret;
321		}
322		set_bit(IS_ST_PWR_SUBIP_ON, &is->state);
323
324		ret = fimc_is_hw_initialize(is);
325	} else {
326		/* Close sensor */
327		if (!test_bit(IS_ST_PWR_ON, &is->state)) {
328			fimc_is_hw_close_sensor(is, 0);
329
330			ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
331						 FIMC_IS_CONFIG_TIMEOUT);
332			if (ret < 0) {
333				v4l2_err(sd, "sensor close timeout\n");
334				return ret;
335			}
336		}
337
338		/* SUB IP power off */
339		if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
340			fimc_is_hw_subip_power_off(is);
341			ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
342						 FIMC_IS_CONFIG_TIMEOUT);
343			if (ret < 0) {
344				v4l2_err(sd, "sub-IP power off timeout\n");
345				return ret;
346			}
347		}
348
349		fimc_is_cpu_set_power(is, 0);
350		pm_runtime_put_sync(&is->pdev->dev);
351
352		clear_bit(IS_ST_PWR_ON, &is->state);
353		clear_bit(IS_ST_INIT_DONE, &is->state);
354		is->state = 0;
355		is->config[is->config_index].p_region_index[0] = 0;
356		is->config[is->config_index].p_region_index[1] = 0;
357		set_bit(IS_ST_IDLE, &is->state);
358		wmb();
359	}
360
361	return ret;
362}
363
364static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
365				struct v4l2_subdev_fh *fh)
366{
367	struct v4l2_mbus_framefmt *format;
368	struct v4l2_mbus_framefmt fmt = {
369		.colorspace = V4L2_COLORSPACE_SRGB,
370		.code = fimc_isp_formats[0].mbus_code,
371		.width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH,
372		.height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT,
373		.field = V4L2_FIELD_NONE,
374	};
375
376	format = v4l2_subdev_state_get_format(fh->state, FIMC_ISP_SD_PAD_SINK);
377	*format = fmt;
378
379	format = v4l2_subdev_state_get_format(fh->state,
380					      FIMC_ISP_SD_PAD_SRC_FIFO);
381	fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
382	fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
383	*format = fmt;
384
385	format = v4l2_subdev_state_get_format(fh->state,
386					      FIMC_ISP_SD_PAD_SRC_DMA);
387	*format = fmt;
388
389	return 0;
390}
391
392static int fimc_isp_subdev_registered(struct v4l2_subdev *sd)
393{
394	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
395	int ret;
396
397	/* Use pipeline object allocated by the media device. */
398	isp->video_capture.ve.pipe = v4l2_get_subdev_hostdata(sd);
399
400	ret = fimc_isp_video_device_register(isp, sd->v4l2_dev,
401			V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
402	if (ret < 0)
403		isp->video_capture.ve.pipe = NULL;
404
405	return ret;
406}
407
408static void fimc_isp_subdev_unregistered(struct v4l2_subdev *sd)
409{
410	struct fimc_isp *isp = v4l2_get_subdevdata(sd);
411
412	fimc_isp_video_device_unregister(isp,
413			V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
414}
415
416static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
417	.registered = fimc_isp_subdev_registered,
418	.unregistered = fimc_isp_subdev_unregistered,
419	.open = fimc_isp_subdev_open,
420};
421
422static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
423	.enum_mbus_code = fimc_is_subdev_enum_mbus_code,
424	.get_fmt = fimc_isp_subdev_get_fmt,
425	.set_fmt = fimc_isp_subdev_set_fmt,
426};
427
428static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
429	.s_stream = fimc_isp_subdev_s_stream,
430};
431
432static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
433	.s_power = fimc_isp_subdev_s_power,
434};
435
436static const struct v4l2_subdev_ops fimc_is_subdev_ops = {
437	.core = &fimc_is_core_ops,
438	.video = &fimc_is_subdev_video_ops,
439	.pad = &fimc_is_subdev_pad_ops,
440};
441
442static int __ctrl_set_white_balance(struct fimc_is *is, int value)
443{
444	switch (value) {
445	case V4L2_WHITE_BALANCE_AUTO:
446		__is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
447		break;
448	case V4L2_WHITE_BALANCE_DAYLIGHT:
449		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
450					ISP_AWB_ILLUMINATION_DAYLIGHT);
451		break;
452	case V4L2_WHITE_BALANCE_CLOUDY:
453		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
454					ISP_AWB_ILLUMINATION_CLOUDY);
455		break;
456	case V4L2_WHITE_BALANCE_INCANDESCENT:
457		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
458					ISP_AWB_ILLUMINATION_TUNGSTEN);
459		break;
460	case V4L2_WHITE_BALANCE_FLUORESCENT:
461		__is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
462					ISP_AWB_ILLUMINATION_FLUORESCENT);
463		break;
464	default:
465		return -EINVAL;
466	}
467
468	return 0;
469}
470
471static int __ctrl_set_aewb_lock(struct fimc_is *is,
472				      struct v4l2_ctrl *ctrl)
473{
474	bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
475	bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
476	struct isp_param *isp = &is->is_p_region->parameter.isp;
477	int cmd, ret;
478
479	cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
480	isp->aa.cmd = cmd;
481	isp->aa.target = ISP_AA_TARGET_AE;
482	fimc_is_set_param_bit(is, PARAM_ISP_AA);
483	is->af.ae_lock_state = ae_lock;
484	wmb();
485
486	ret = fimc_is_itf_s_param(is, false);
487	if (ret < 0)
488		return ret;
489
490	cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
491	isp->aa.cmd = cmd;
492	isp->aa.target = ISP_AA_TARGET_AE;
493	fimc_is_set_param_bit(is, PARAM_ISP_AA);
494	is->af.awb_lock_state = awb_lock;
495	wmb();
496
497	return fimc_is_itf_s_param(is, false);
498}
499
500/* Supported manual ISO values */
501static const s64 iso_qmenu[] = {
502	50, 100, 200, 400, 800,
503};
504
505static int __ctrl_set_iso(struct fimc_is *is, int value)
506{
507	unsigned int idx, iso;
508
509	if (value == V4L2_ISO_SENSITIVITY_AUTO) {
510		__is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
511		return 0;
512	}
513	idx = is->isp.ctrls.iso->val;
514	if (idx >= ARRAY_SIZE(iso_qmenu))
515		return -EINVAL;
516
517	iso = iso_qmenu[idx];
518	__is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
519	return 0;
520}
521
522static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
523{
524	unsigned int val;
525
526	switch (value) {
527	case V4L2_EXPOSURE_METERING_AVERAGE:
528		val = ISP_METERING_COMMAND_AVERAGE;
529		break;
530	case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
531		val = ISP_METERING_COMMAND_CENTER;
532		break;
533	case V4L2_EXPOSURE_METERING_SPOT:
534		val = ISP_METERING_COMMAND_SPOT;
535		break;
536	case V4L2_EXPOSURE_METERING_MATRIX:
537		val = ISP_METERING_COMMAND_MATRIX;
538		break;
539	default:
540		return -EINVAL;
541	}
542
543	__is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
544	return 0;
545}
546
547static int __ctrl_set_afc(struct fimc_is *is, int value)
548{
549	switch (value) {
550	case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
551		__is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
552		break;
553	case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
554		__is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
555		break;
556	case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
557		__is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
558		break;
559	case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
560		__is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
561		break;
562	default:
563		return -EINVAL;
564	}
565
566	return 0;
567}
568
569static int __ctrl_set_image_effect(struct fimc_is *is, int value)
570{
571	static const u8 effects[][2] = {
572		{ V4L2_COLORFX_NONE,	 ISP_IMAGE_EFFECT_DISABLE },
573		{ V4L2_COLORFX_BW,	 ISP_IMAGE_EFFECT_MONOCHROME },
574		{ V4L2_COLORFX_SEPIA,	 ISP_IMAGE_EFFECT_SEPIA },
575		{ V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
576		{ 16 /* TODO */,	 ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
577	};
578	int i;
579
580	for (i = 0; i < ARRAY_SIZE(effects); i++) {
581		if (effects[i][0] != value)
582			continue;
583
584		__is_set_isp_effect(is, effects[i][1]);
585		return 0;
586	}
587
588	return -EINVAL;
589}
590
591static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
592{
593	struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
594	struct fimc_is *is = fimc_isp_to_is(isp);
595	bool set_param = true;
596	int ret = 0;
597
598	switch (ctrl->id) {
599	case V4L2_CID_CONTRAST:
600		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
601				    ctrl->val);
602		break;
603
604	case V4L2_CID_SATURATION:
605		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
606				    ctrl->val);
607		break;
608
609	case V4L2_CID_SHARPNESS:
610		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
611				    ctrl->val);
612		break;
613
614	case V4L2_CID_EXPOSURE_ABSOLUTE:
615		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
616				    ctrl->val);
617		break;
618
619	case V4L2_CID_BRIGHTNESS:
620		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
621				    ctrl->val);
622		break;
623
624	case V4L2_CID_HUE:
625		__is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
626				    ctrl->val);
627		break;
628
629	case V4L2_CID_EXPOSURE_METERING:
630		ret = __ctrl_set_metering(is, ctrl->val);
631		break;
632
633	case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
634		ret = __ctrl_set_white_balance(is, ctrl->val);
635		break;
636
637	case V4L2_CID_3A_LOCK:
638		ret = __ctrl_set_aewb_lock(is, ctrl);
639		set_param = false;
640		break;
641
642	case V4L2_CID_ISO_SENSITIVITY_AUTO:
643		ret = __ctrl_set_iso(is, ctrl->val);
644		break;
645
646	case V4L2_CID_POWER_LINE_FREQUENCY:
647		ret = __ctrl_set_afc(is, ctrl->val);
648		break;
649
650	case V4L2_CID_COLORFX:
651		__ctrl_set_image_effect(is, ctrl->val);
652		break;
653
654	default:
655		ret = -EINVAL;
656		break;
657	}
658
659	if (ret < 0) {
660		v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
661						ctrl->name, ctrl->val);
662		return ret;
663	}
664
665	if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
666		return fimc_is_itf_s_param(is, true);
667
668	return 0;
669}
670
671static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
672	.s_ctrl	= fimc_is_s_ctrl,
673};
674
675static void __isp_subdev_set_default_format(struct fimc_isp *isp)
676{
677	struct fimc_is *is = fimc_isp_to_is(isp);
678
679	isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
680				FIMC_ISP_CAC_MARGIN_WIDTH;
681	isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
682				FIMC_ISP_CAC_MARGIN_HEIGHT;
683	isp->sink_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
684
685	isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
686	isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
687	isp->src_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
688	__is_set_frame_size(is, &isp->src_fmt);
689}
690
691int fimc_isp_subdev_create(struct fimc_isp *isp)
692{
693	const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
694	struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
695	struct v4l2_subdev *sd = &isp->subdev;
696	struct fimc_isp_ctrls *ctrls = &isp->ctrls;
697	int ret;
698
699	mutex_init(&isp->subdev_lock);
700
701	v4l2_subdev_init(sd, &fimc_is_subdev_ops);
702
703	sd->owner = THIS_MODULE;
704	sd->grp_id = GRP_ID_FIMC_IS;
705	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
706	snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
707
708	sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
709	isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
710	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
711	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
712	ret = media_entity_pads_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
713				isp->subdev_pads);
714	if (ret)
715		return ret;
716
717	v4l2_ctrl_handler_init(handler, 20);
718
719	ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
720						-2, 2, 1, 0);
721	ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
722						-4, 4, 1, 0);
723	ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
724						-2, 2, 1, 0);
725	ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
726						-2, 2, 1, 0);
727	ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
728						-2, 2, 1, 0);
729
730	ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
731					V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
732					8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
733
734	ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
735					V4L2_CID_EXPOSURE_ABSOLUTE,
736					-4, 4, 1, 0);
737
738	ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
739					V4L2_CID_EXPOSURE_METERING, 3,
740					~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
741
742	v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
743					V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
744					V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
745	/* ISO sensitivity */
746	ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
747			V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
748			V4L2_ISO_SENSITIVITY_AUTO);
749
750	ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
751			V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
752			ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
753
754	ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
755					V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
756
757	/* TODO: Add support for NEGATIVE_COLOR option */
758	ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
759			V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
760
761	if (handler->error) {
762		media_entity_cleanup(&sd->entity);
763		return handler->error;
764	}
765
766	v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
767			V4L2_ISO_SENSITIVITY_MANUAL, false);
768
769	sd->ctrl_handler = handler;
770	sd->internal_ops = &fimc_is_subdev_internal_ops;
771	sd->entity.ops = &fimc_is_subdev_media_ops;
772	v4l2_set_subdevdata(sd, isp);
773
774	__isp_subdev_set_default_format(isp);
775
776	return 0;
777}
778
779void fimc_isp_subdev_destroy(struct fimc_isp *isp)
780{
781	struct v4l2_subdev *sd = &isp->subdev;
782
783	v4l2_device_unregister_subdev(sd);
784	media_entity_cleanup(&sd->entity);
785	v4l2_ctrl_handler_free(&isp->ctrls.handler);
786	v4l2_set_subdevdata(sd, NULL);
787}