drivers/media/platform/exynos4-is/fimc-isp.c - kernel/msm-4.9 - Gitiles

 /*
  * 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"

 static int debug = 10;
 module_param_named(debug_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 fimc_is *is = fimc_isp_to_is(isp);
 	struct v4l2_mbus_framefmt *mf = &fmt->format;
 	struct v4l2_mbus_framefmt cur_fmt;

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

 	mf->colorspace = V4L2_COLORSPACE_JPEG;

 	mutex_lock(&isp->subdev_lock);
 	__is_get_frame_size(is, &cur_fmt);

 	if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 		/* full camera input frame size */
 		mf->width = cur_fmt.width + FIMC_ISP_CAC_MARGIN_WIDTH;
 		mf->height = cur_fmt.height + FIMC_ISP_CAC_MARGIN_HEIGHT;
 		mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
 	} else {
 		/* crop size */
 		mf->width = cur_fmt.width;
 		mf->height = cur_fmt.height;
 		mf->code = V4L2_MBUS_FMT_YUV10_1X30;
 	}

 	mutex_unlock(&isp->subdev_lock);

 	v4l2_dbg(1, debug, 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_format *fmt)
 {
 	struct v4l2_mbus_framefmt *mf = &fmt->format;

 	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);
 		isp->subdev_fmt = *mf;
 	} else {
 		/* Allow changing format only on sink pad */
 		mf->width = isp->subdev_fmt.width - FIMC_ISP_CAC_MARGIN_WIDTH;
 		mf->height = isp->subdev_fmt.height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 		mf->code = isp->subdev_fmt.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;

 	v4l2_dbg(1, debug, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 		 __func__, fmt->pad, mf->code, mf->width, mf->height);

 	mf->colorspace = V4L2_COLORSPACE_JPEG;

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

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

 	if (sd->entity.stream_count == 0)
 		__is_set_frame_size(is, 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;

 	v4l2_dbg(1, debug, 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;
 		}

 		v4l2_dbg(1, debug, sd, "changing mode to %d\n",
 						is->scenario_id);
 		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->cfg_param[is->scenario_id].p_region_index1 = 0;
 		is->cfg_param[is->scenario_id].p_region_index2 = 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,
 };

 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->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);

 	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);
 }
	/*
	* 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"

	static int debug = 10;
	module_param_named(debug_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 fimc_is *is = fimc_isp_to_is(isp);
	struct v4l2_mbus_framefmt *mf = &fmt->format;
	struct v4l2_mbus_framefmt cur_fmt;

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

	mf->colorspace = V4L2_COLORSPACE_JPEG;

	mutex_lock(&isp->subdev_lock);
	__is_get_frame_size(is, &cur_fmt);

	if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
	/* full camera input frame size */
	mf->width = cur_fmt.width + FIMC_ISP_CAC_MARGIN_WIDTH;
	mf->height = cur_fmt.height + FIMC_ISP_CAC_MARGIN_HEIGHT;
	mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
	} else {
	/* crop size */
	mf->width = cur_fmt.width;
	mf->height = cur_fmt.height;
	mf->code = V4L2_MBUS_FMT_YUV10_1X30;
	}

	mutex_unlock(&isp->subdev_lock);

	v4l2_dbg(1, debug, 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_format *fmt)
	{
	struct v4l2_mbus_framefmt *mf = &fmt->format;

	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);
	isp->subdev_fmt = *mf;
	} else {
	/* Allow changing format only on sink pad */
	mf->width = isp->subdev_fmt.width - FIMC_ISP_CAC_MARGIN_WIDTH;
	mf->height = isp->subdev_fmt.height - FIMC_ISP_CAC_MARGIN_HEIGHT;
	mf->code = isp->subdev_fmt.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;

	v4l2_dbg(1, debug, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
	__func__, fmt->pad, mf->code, mf->width, mf->height);

	mf->colorspace = V4L2_COLORSPACE_JPEG;

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

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

	if (sd->entity.stream_count == 0)
	__is_set_frame_size(is, 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;

	v4l2_dbg(1, debug, 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;
	}

	v4l2_dbg(1, debug, sd, "changing mode to %d\n",
	is->scenario_id);
	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->cfg_param[is->scenario_id].p_region_index1 = 0;
	is->cfg_param[is->scenario_id].p_region_index2 = 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,
	};

	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->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);

	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);
	}