path: root/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0031-media-i2c-Add-ov5647-sensor.patch

From 8b97232e3ecbb4ee38bda454915e62914ef52fcc Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Thu, 1 Jun 2017 19:59:56 +0300
Subject: [PATCH] media: i2c: Add ov5647 sensor

Add ov5647 camera sensor driver

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
 drivers/media/i2c/soc_camera/Kconfig  |   6 +
 drivers/media/i2c/soc_camera/Makefile |   1 +
 drivers/media/i2c/soc_camera/ov5647.c | 649 ++++++++++++++++++++++++++++++++++
 drivers/media/i2c/soc_camera/ov5647.h | 242 +++++++++++++
 4 files changed, 898 insertions(+)
 create mode 100644 drivers/media/i2c/soc_camera/ov5647.c
 create mode 100644 drivers/media/i2c/soc_camera/ov5647.h

diff --git a/drivers/media/i2c/soc_camera/Kconfig b/drivers/media/i2c/soc_camera/Kconfig
index e1c65ca..c272aeb 100644
--- a/drivers/media/i2c/soc_camera/Kconfig
+++ b/drivers/media/i2c/soc_camera/Kconfig
@@ -97,6 +97,12 @@ config SOC_CAMERA_OV5642
 	help
 	  This is a V4L2 camera driver for the OmniVision OV5642 sensor
 
+config SOC_CAMERA_OV5647
+	tristate "ov5647 camera support"
+	depends on SOC_CAMERA && I2C
+	help
+	  This is a V4L2 camera driver for the OmniVision OV5647 sensor
+
 config SOC_CAMERA_OV6650
 	tristate "ov6650 sensor support"
 	depends on SOC_CAMERA && I2C
diff --git a/drivers/media/i2c/soc_camera/Makefile b/drivers/media/i2c/soc_camera/Makefile
index 8e24d5d..a67fff8 100644
--- a/drivers/media/i2c/soc_camera/Makefile
+++ b/drivers/media/i2c/soc_camera/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_SOC_CAMERA_OV495_OV2775)	+= ov495_ov2775.o
 obj-$(CONFIG_SOC_CAMERA_OV106XX)	+= ov106xx.o
 obj-$(CONFIG_SOC_CAMERA_OV2640)		+= ov2640.o
 obj-$(CONFIG_SOC_CAMERA_OV5642)		+= ov5642.o
+obj-$(CONFIG_SOC_CAMERA_OV5647)		+= ov5647.o
 obj-$(CONFIG_SOC_CAMERA_OV6650)		+= ov6650.o
 obj-$(CONFIG_SOC_CAMERA_OV772X)		+= ov772x.o
 obj-$(CONFIG_SOC_CAMERA_OV9640)		+= ov9640.o
diff --git a/drivers/media/i2c/soc_camera/ov5647.c b/drivers/media/i2c/soc_camera/ov5647.c
new file mode 100644
index 0000000..caccf39
--- /dev/null
+++ b/drivers/media/i2c/soc_camera/ov5647.c
@@ -0,0 +1,649 @@
+/*
+ * V4L2 driver for OmniVision OV5647 cameras.
+ *
+ * Based on Samsung S5K6AAFX SXGA 1/6" 1.3M CMOS Image Sensor driver
+ * Copyright (C) 2011 Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * Based on Omnivision OV7670 Camera Driver
+ * Copyright (C) 2006-7 Jonathan Corbet <corbet@lwn.net>
+ *
+ * Copyright (C) 2016, Synopsys, Inc.
+ *
+ * Copyright (C) 2017 Cogent Embedded, Inc
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-mediabus.h>
+#include <media/v4l2-image-sizes.h>
+#include <media/v4l2-of.h>
+#include <linux/io.h>
+
+#include "ov5647.h"
+
+static bool debug = true;
+module_param(debug, bool, 0644);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+#define OV5647_I2C_ADDR 0x6c
+#define SENSOR_NAME "ov5647"
+
+#define OV5647_REG_CHIPID_H	0x300A
+#define OV5647_REG_CHIPID_L	0x300B
+
+#define REG_TERM 0xfffe
+#define VAL_TERM 0xfe
+#define REG_DLY  0xffff
+
+/*define the voltage level of control signal*/
+#define CSI_STBY_ON		1
+#define CSI_STBY_OFF		0
+#define CSI_RST_ON		0
+#define CSI_RST_OFF		1
+#define CSI_PWR_ON		1
+#define CSI_PWR_OFF		0
+#define CSI_AF_PWR_ON		1
+#define CSI_AF_PWR_OFF		0
+
+#define OV5647_ROW_START		0x01
+#define OV5647_ROW_START_MIN		0
+#define OV5647_ROW_START_MAX		2004
+#define OV5647_ROW_START_DEF		54
+
+#define OV5647_COLUMN_START		0x02
+#define OV5647_COLUMN_START_MIN		0
+#define OV5647_COLUMN_START_MAX		2750
+#define OV5647_COLUMN_START_DEF		16
+
+#define OV5647_WINDOW_HEIGHT		0x03
+#define OV5647_WINDOW_HEIGHT_MIN	2
+#define OV5647_WINDOW_HEIGHT_MAX	2006
+#define OV5647_WINDOW_HEIGHT_DEF	1944
+
+#define OV5647_WINDOW_WIDTH		0x04
+#define OV5647_WINDOW_WIDTH_MIN		2
+#define OV5647_WINDOW_WIDTH_MAX		2752
+#define OV5647_WINDOW_WIDTH_DEF		2592
+
+enum power_seq_cmd {
+	CSI_SUBDEV_PWR_OFF = 0x00,
+	CSI_SUBDEV_PWR_ON = 0x01,
+};
+
+struct sensor_format_struct {
+	__u8 *desc;
+	u32 mbus_code;
+	enum v4l2_colorspace colorspace;
+	struct regval_list *regs;
+	int regs_size;
+	int bpp;
+};
+
+struct cfg_array {
+	struct regval_list *regs;
+	int size;
+};
+
+struct sensor_win_size {
+	int width;
+	int height;
+	unsigned int hoffset;
+	unsigned int voffset;
+	unsigned int hts;
+	unsigned int vts;
+	unsigned int pclk;
+	unsigned int mipi_bps;
+	unsigned int fps_fixed;
+	unsigned int bin_factor;
+	unsigned int intg_min;
+	unsigned int intg_max;
+	void *regs;
+	int regs_size;
+	int (*set_size)(struct v4l2_subdev *subdev);
+};
+
+struct ov5647 {
+	struct device			*dev;
+	struct v4l2_subdev		subdev;
+	struct media_pad		pad;
+	struct mutex			lock;
+	struct v4l2_mbus_framefmt	format;
+	struct sensor_format_struct	*fmt;
+	unsigned int			width;
+	unsigned int			height;
+	unsigned int			capture_mode;
+	int				hue;
+	struct v4l2_fract		tpf;
+	struct sensor_win_size		*current_wins;
+};
+
+static inline struct ov5647 *to_state(struct v4l2_subdev *subdev)
+{
+	return container_of(subdev, struct ov5647, subdev);
+}
+
+static struct sensor_format_struct sensor_formats[] = {
+	{
+		.mbus_code	= OV5647_CODE,
+		.colorspace	= V4L2_COLORSPACE_JPEG,
+	},
+};
+#define N_FMTS ARRAY_SIZE(sensor_formats)
+
+static int ov5647_write(struct v4l2_subdev *sd, uint16_t reg, uint8_t val)
+{
+	int ret;
+	unsigned char data[3] = { reg >> 8, reg & 0xff, val};
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	ret = i2c_master_send(client, data, 3);
+	if (ret < 3) {
+		printk( "%s: i2c write error, reg: %x, %d\n",
+				__func__, reg, ret);
+		return ret < 0 ? ret : -EIO;
+	}
+
+	return 0;
+}
+
+static int ov5647_read(struct v4l2_subdev *sd, uint16_t reg, uint8_t *val)
+{
+	int ret;
+	unsigned char data_w[2] = { reg >> 8, reg & 0xff };
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+
+	ret = i2c_master_send(client, data_w, 2);
+
+	if (ret < 2) {
+		printk("%s: i2c read error, reg: %x\n",
+			__func__, reg);
+		return ret < 0 ? ret : -EIO;
+	}
+
+	ret = i2c_master_recv(client, val, 1);
+
+	if (ret < 1) {
+		printk("%s: i2c read error, reg: %x\n",
+				__func__, reg);
+		return ret < 0 ? ret : -EIO;
+	}
+
+	return 0;
+}
+
+static int ov5647_write_array(struct v4l2_subdev *subdev,
+				struct regval_list *regs, int array_size)
+{
+	int i = 0;
+	int ret = 0;
+
+	if (!regs)
+		return -EINVAL;
+
+	while (i < array_size) {
+		if (regs->addr == REG_DLY)
+			mdelay(regs->data);
+		else
+			ret = ov5647_write(subdev, regs->addr, regs->data);
+
+		if (ret == -EIO)
+			return ret;
+
+		i++;
+		regs++;
+	}
+	return 0;
+}
+
+static void ov5647_set_virtual_channel(struct v4l2_subdev *subdev, int channel)
+{
+#if 0
+	u8 channel_id;
+
+	ov5647_read(subdev, 0x4814, &channel_id);
+//	channel_id = 0x1e; //override
+
+	channel_id &= ~(3 << 6);
+	channel_id |= (channel << 6);
+	printk("0x4814 = 0x%02x\n", channel_id);
+	ov5647_write(subdev, 0x4814, channel_id);
+	ov5647_write(subdev, 0x4801, 0x8f);
+#endif
+}
+
+void ov5647_stream_on(struct v4l2_subdev *subdev)
+{
+	ov5647_write(subdev, 0x4202, 0x00);
+	ov5647_write(subdev, 0x300D, 0x00);
+}
+
+void ov5647_stream_off(struct v4l2_subdev *subdev)
+{
+	ov5647_write(subdev, 0x4202, 0x0f);
+	ov5647_write(subdev, 0x300D, 0x01);
+}
+
+static int sensor_s_sw_stby(struct v4l2_subdev *subdev, int on_off)
+{
+	int ret;
+	unsigned char rdval;
+
+	ret = ov5647_read(subdev, 0x0100, &rdval);
+	if (ret != 0)
+		return ret;
+
+	if (on_off == CSI_STBY_ON)
+		ret = ov5647_write(subdev, 0x0100, rdval&0xfe);
+	else
+		ret = ov5647_write(subdev, 0x0100, rdval|0x01);
+
+	return ret;
+}
+
+static int __sensor_init(struct v4l2_subdev *subdev)
+{
+	int ret;
+	unsigned char rdval;
+
+	ret = ov5647_read(subdev, 0x0100, &rdval);
+	if (ret != 0)
+		return ret;
+
+	ov5647_write(subdev, 0x4800, 0x25);
+	ov5647_stream_off(subdev);
+
+	ov5647_write(subdev, 0x100, 0);
+	/* reset */
+	ov5647_write(subdev, 0x103, 1);
+	ov5647_write(subdev, 0x103, 1);
+	ov5647_write(subdev, 0x103, 1);
+	mdelay(10);
+
+	ret = ov5647_write_array(subdev, ov5647_recommend_settings,
+					ARRAY_SIZE(ov5647_recommend_settings));
+#if 1
+	ret = ov5647_write_array(subdev, ov5647_snap_settings,
+					ARRAY_SIZE(ov5647_snap_settings));
+#else
+	ret = ov5647_write_array(subdev, ov5647_prev_settings,
+					ARRAY_SIZE(ov5647_prev_settings));
+#endif
+	ov5647_set_virtual_channel(subdev, 0);
+
+	ov5647_write(subdev, 0x0100, 0x01);
+
+	ov5647_write(subdev, 0x04800, 0x04);
+	ov5647_stream_on(subdev);
+	msleep(30);
+
+	return 0;
+}
+
+static int sensor_power(struct v4l2_subdev *subdev, int on)
+{
+	int ret = 0;
+	struct ov5647 *ov5647 = to_state(subdev);
+
+	mutex_lock(&ov5647->lock);
+
+	switch (on) {
+	case CSI_SUBDEV_PWR_OFF:
+		ret = sensor_s_sw_stby(subdev, CSI_STBY_ON);
+		if (ret < 0)
+			printk("soft stby failed!\n");
+		break;
+	case CSI_SUBDEV_PWR_ON:
+		ret = __sensor_init(subdev);
+		if (ret < 0) {
+			v4l2_err(subdev, "Camera not available, check power\n");
+			break;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mutex_unlock(&ov5647->lock);
+
+	return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int sensor_get_register(struct v4l2_subdev *subdev,
+			       struct v4l2_dbg_register *reg)
+{
+	u8 val = 0;
+	int ret;
+
+	ret = ov5647_read(subdev, (u16)reg->reg, &val);
+	if (ret < 0)
+		return ret;
+
+	reg->val = val;
+	reg->size = sizeof(u8);
+
+	return ret;
+}
+
+static int sensor_set_register(struct v4l2_subdev *subdev,
+			       const struct v4l2_dbg_register *reg)
+{
+	ov5647_write(subdev, (u16)reg->reg, (u8)reg->val);
+
+	return 0;
+}
+#endif
+
+static const struct v4l2_subdev_core_ops sensor_core_ops = {
+	.s_power		= sensor_power,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.g_register		= sensor_get_register,
+	.s_register		= sensor_set_register,
+#endif
+};
+
+static int sensor_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	if (enable)
+		ov5647_stream_on(sd);
+	else
+		ov5647_stream_off(sd);
+
+	return 0;
+}
+
+static int sensor_enum_fmt(struct v4l2_subdev *sd,
+			   struct v4l2_subdev_pad_config *cfg,
+			   struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->pad || code->index >= N_FMTS)
+		return -EINVAL;
+
+	code->code = OV5647_CODE;
+
+	return 0;
+}
+
+static int sensor_try_fmt_internal(struct v4l2_subdev *subdev,
+				   struct v4l2_mbus_framefmt *fmt, 
+				   struct sensor_format_struct **ret_fmt,
+				   struct sensor_win_size **ret_wsize)
+{
+	int index;
+
+	for (index = 0; index < N_FMTS; index++)
+		if (sensor_formats[index].mbus_code == fmt->code)
+			break;
+
+	if (index >= N_FMTS)
+		return -EINVAL;
+
+	if (ret_fmt != NULL)
+		*ret_fmt = sensor_formats + index;
+
+	fmt->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int sensor_s_fmt(struct v4l2_subdev *subdev,
+			struct v4l2_subdev_pad_config *cfg,
+			struct v4l2_subdev_format *fmt)
+{
+	int ret;
+	struct sensor_format_struct *sensor_fmt;
+	struct sensor_win_size *wsize = NULL;
+	struct ov5647 *info = to_state(subdev);
+
+	ret = sensor_try_fmt_internal(subdev, &fmt->format,
+					&sensor_fmt, &wsize);
+	if (ret)
+		return ret;
+
+	info->fmt = sensor_fmt;
+	info->width = OV5647_WIDTH;
+	info->height = OV5647_HEIGHT;
+
+	return 0;
+}
+
+static int sensor_g_fmt(struct v4l2_subdev *sd,
+			struct v4l2_subdev_pad_config *cfg,
+			struct v4l2_subdev_format *format)
+{
+	struct ov5647 *info = to_state(sd);
+	struct v4l2_mbus_framefmt *mf = &format->format;
+
+	if (format->pad != 0)
+		return -EINVAL;
+
+	mf->width = OV5647_WIDTH;
+	mf->height = OV5647_HEIGHT;
+	mf->code = OV5647_CODE;
+	mf->colorspace = info->fmt->colorspace;
+	mf->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int sensor_s_parm(struct v4l2_subdev *subdev,
+			 struct v4l2_streamparm *parms)
+{
+	struct v4l2_captureparm *cp = &parms->parm.capture;
+	struct ov5647 *info = to_state(subdev);
+
+	if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	if (info->tpf.numerator == 0)
+		return -EINVAL;
+
+	info->capture_mode = cp->capturemode;
+
+	return 0;
+}
+
+static int sensor_g_parm(struct v4l2_subdev *subdev,
+			 struct v4l2_streamparm *parms)
+{
+	struct v4l2_captureparm *cp = &parms->parm.capture;
+	struct ov5647 *info = to_state(subdev);
+
+	if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	memset(cp, 0, sizeof(struct v4l2_captureparm));
+	cp->capability = V4L2_CAP_TIMEPERFRAME;
+	cp->capturemode = info->capture_mode;
+
+	return 0;
+}
+
+static int sensor_g_mbus_config(struct v4l2_subdev *sd,
+				struct v4l2_mbus_config *cfg)
+{
+	cfg->flags = V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_CHANNEL_0 |
+		     V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
+	cfg->type = V4L2_MBUS_CSI2;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops sensor_pad_ops = {
+	.enum_mbus_code	= sensor_enum_fmt,
+	.set_fmt	= sensor_s_fmt,
+	.get_fmt	= sensor_g_fmt,
+};
+
+static const struct v4l2_subdev_video_ops sensor_video_ops = {
+	.s_stream	= sensor_s_stream,
+	.s_parm		= sensor_s_parm,
+	.g_parm		= sensor_g_parm,
+	.g_mbus_config	= sensor_g_mbus_config,
+};
+
+static const struct v4l2_subdev_ops subdev_ops = {
+	.core		= &sensor_core_ops,
+	.video		= &sensor_video_ops,
+	.pad		= &sensor_pad_ops,
+};
+
+static int ov5647_detect(struct v4l2_subdev *sd)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	unsigned char id_h, id_l;
+	int ret;
+
+	ret = sensor_power(sd, 1);
+	if (ret < 0)
+		return ret;
+
+	ret = ov5647_read(sd, OV5647_REG_CHIPID_H, &id_h);
+	if (ret < 0)
+		return ret;
+	ret = ov5647_read(sd, OV5647_REG_CHIPID_L, &id_l);
+	if (ret < 0)
+		return ret;
+
+	if ((id_h != 0x56) || (id_l != 0x47)) {
+		v4l2_info(sd, "Invalid device ID: %02x%02x\n", id_h, id_l);
+		return -ENODEV;
+	}
+
+	v4l2_info(sd, "OV5647 detected at address 0x%02x\n", client->addr);
+
+	ret = sensor_power(sd, 0);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int ov5647_registered(struct v4l2_subdev *subdev)
+{
+	return 0;
+}
+
+static int ov5647_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
+{
+	struct v4l2_mbus_framefmt *format =
+				v4l2_subdev_get_try_format(subdev, fh->pad, 0);
+	struct v4l2_rect *crop =
+				v4l2_subdev_get_try_crop(subdev, fh->pad, 0);
+
+	crop->left = 0;
+	crop->top = 0;
+	crop->width = OV5647_WIDTH;
+	crop->height = OV5647_HEIGHT;
+
+	format->code = OV5647_CODE;
+
+	format->width = OV5647_WIDTH;
+	format->height = OV5647_HEIGHT;
+	format->field = V4L2_FIELD_NONE;
+	format->colorspace = sensor_formats[0].colorspace;
+
+	return sensor_power(subdev, 1);
+}
+
+static int ov5647_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
+{
+	return sensor_power(subdev, 0);
+}
+
+static const struct v4l2_subdev_internal_ops ov5647_subdev_internal_ops = {
+	.registered = ov5647_registered,
+	.open = ov5647_open,
+	.close = ov5647_close,
+};
+
+static int ov5647_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct ov5647 *sensor;
+	int ret = 0;
+	struct v4l2_subdev *sd;
+
+	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+	if (sensor == NULL)
+		return -ENOMEM;
+
+	mutex_init(&sensor->lock);
+	sensor->dev = dev;
+	sensor->fmt = &sensor_formats[0];
+	sensor->width = OV5647_WIDTH;
+	sensor->height = OV5647_HEIGHT;
+
+	sd = &sensor->subdev;
+	v4l2_i2c_subdev_init(sd, client, &subdev_ops);
+	sensor->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+	ret = ov5647_detect(sd);
+	if (ret < 0) {
+		v4l2_err(sd, "OV5647 not found!\n");
+		goto out;
+	}
+
+	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad);
+	if (ret < 0)
+		return ret;
+
+	ret = v4l2_async_register_subdev(sd);
+	if (ret < 0)
+		media_entity_cleanup(&sd->entity);
+
+out:
+	return ret;
+}
+
+static int ov5647_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+	struct ov5647 *ov5647 = to_state(subdev);
+
+	v4l2_async_unregister_subdev(&ov5647->subdev);
+	media_entity_cleanup(&ov5647->subdev.entity);
+	v4l2_device_unregister_subdev(subdev);
+
+	return 0;
+}
+
+static const struct i2c_device_id ov5647_id[] = {
+	{ "ov5647", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ov5647_id);
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id ov5647_of_match[] = {
+	{ .compatible = "ovti,ov5647" },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ov5647_of_match);
+#endif
+
+static struct i2c_driver ov5647_driver = {
+	.driver = {
+		.of_match_table = of_match_ptr(ov5647_of_match),
+		.owner	= THIS_MODULE,
+		.name	= "ov5647",
+	},
+	.probe		= ov5647_probe,
+	.remove		= ov5647_remove,
+	.id_table	= ov5647_id,
+};
+module_i2c_driver(ov5647_driver);
+
+MODULE_AUTHOR("Ramiro Oliveira <roliveir@synopsys.com>");
+MODULE_DESCRIPTION("A low-level driver for OmniVision ov5647 sensors");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/i2c/soc_camera/ov5647.h b/drivers/media/i2c/soc_camera/ov5647.h
new file mode 100644
index 0000000..f854da8
--- /dev/null
+++ b/drivers/media/i2c/soc_camera/ov5647.h
@@ -0,0 +1,242 @@
+/*
+ * Copyright (c) 2012, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2017 Cogent Embedded, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+//#define TEST_PATTERN
+
+#define OV5647_WIDTH 2592
+#define OV5647_HEIGHT 1944
+
+#define OV5647_CODE MEDIA_BUS_FMT_SBGGR8_1X8
+//#define OV5647_CODE MEDIA_BUS_FMT_YUYV8_2X8
+
+struct regval_list {
+	uint16_t addr;
+	uint8_t data;
+};
+
+enum ov5647_test_mode_t {
+	TEST_OFF,
+	TEST_1,
+	TEST_2,
+	TEST_3
+};
+
+struct regval_list ov5647_prev_settings[] = {
+	/*1280*960 Reference Setting 24M MCLK 2lane 280Mbps/lane 30fps
+	for back to preview*/
+	{0x3035, 0x21},
+	{0x3036, 0x37},
+	{0x3821, 0x07},
+	{0x3820, 0x41},
+	{0x3612, 0x09},
+	{0x3618, 0x00},
+	{0x380c, 0x07},
+	{0x380d, 0x68},
+	{0x380e, 0x03},
+	{0x380f, 0xd8},
+	{0x3814, 0x31},
+	{0x3815, 0x31},
+	{0x3709, 0x52},
+	{0x3808, 0x05}, // 1280
+	{0x3809, 0x00},
+	{0x380a, 0x03}, // 960
+	{0x380b, 0xc0},
+	{0x3800, 0x00},
+	{0x3801, 0x18},
+	{0x3802, 0x00},
+	{0x3803, 0x0e},
+	{0x3804, 0x0a},
+	{0x3805, 0x27},
+	{0x3806, 0x07},
+	{0x3807, 0x95},
+	{0x4004, 0x02},
+};
+struct regval_list ov5647_snap_settings[] = {
+	/*2608*1952 Reference Setting 24M MCLK 2lane 280Mbps/lane 30fps*/
+	{0x3035, 0x21},
+	{0x3036, 0x4f},
+	{0x3821, 0x06},
+	{0x3820, 0x00},
+	{0x3612, 0x0b},
+	{0x3618, 0x04},
+	{0x380c, 0x0a},
+	{0x380d, 0x8c},
+	{0x380e, 0x07},
+	{0x380f, 0xb0},
+	{0x3814, 0x11},
+	{0x3815, 0x11},
+	{0x3709, 0x12},
+#if 0
+	{0x3808, 0x0a},
+	{0x3809, 0x30},
+	{0x380a, 0x07},
+	{0x380b, 0xa0},
+#else
+	{0x3808, OV5647_WIDTH >> 8},
+	{0x3809, OV5647_WIDTH & 0xff},
+	{0x380a, OV5647_HEIGHT >> 8},
+	{0x380b, OV5647_HEIGHT & 0xff},
+#endif
+	{0x3800, 0x00},
+	{0x3801, 0x04},
+	{0x3802, 0x00},
+	{0x3803, 0x00},
+	{0x3804, 0x0a},
+	{0x3805, 0x3b},
+	{0x3806, 0x07},
+	{0x3807, 0xa3},
+	{0x4004, 0x04},
+};
+struct regval_list ov5647_recommend_settings[] = {
+#ifdef TEST_PATTERN
+	{0x503d, 0x80},
+#endif
+#if 0
+	{0x4814, 0x1e},
+	{0x4801, 0x8f},
+#endif
+	{0x3035, 0x11},
+	{0x303c, 0x11},
+	{0x370c, 0x03},
+	{0x5000, 0x06},
+	{0x5003, 0x08},
+	{0x5a00, 0x08},
+	{0x3000, 0xff},
+	{0x3001, 0xff},
+	{0x3002, 0xff},
+	{0x301d, 0xf0},
+	{0x3a18, 0x00},
+	{0x3a19, 0xf8},
+	{0x3c01, 0x80},
+	{0x3b07, 0x0c},
+	{0x3708, 0x64},
+	{0x3630, 0x2e},
+	{0x3632, 0xe2},
+	{0x3633, 0x23},
+	{0x3634, 0x44},
+	{0x3620, 0x64},
+	{0x3621, 0xe0},
+	{0x3600, 0x37},
+	{0x3704, 0xa0},
+	{0x3703, 0x5a},
+	{0x3715, 0x78},
+	{0x3717, 0x01},
+	{0x3731, 0x02},
+	{0x370b, 0x60},
+	{0x3705, 0x1a},
+	{0x3f05, 0x02},
+	{0x3f06, 0x10},
+	{0x3f01, 0x0a},
+	{0x3a08, 0x01},
+	{0x3a0f, 0x58},
+	{0x3a10, 0x50},
+	{0x3a1b, 0x58},
+	{0x3a1e, 0x50},
+	{0x3a11, 0x60},
+	{0x3a1f, 0x28},
+	{0x4001, 0x02},
+	{0x4000, 0x09},
+	{0x3000, 0x00},
+	{0x3001, 0x00},
+	{0x3002, 0x00},
+	{0x3017, 0xe0},
+	{0x301c, 0xfc},
+	{0x3636, 0x06},
+	{0x3016, 0x08},
+	{0x3827, 0xec},
+	{0x3018, 0x44},
+	{0x3035, 0x21},
+	{0x3106, 0xf5},
+	{0x3034, 0x18},
+	{0x301c, 0xf8},
+	/*lens setting*/
+	{0x5000, 0x86},
+	{0x5800, 0x11},
+	{0x5801, 0x0c},
+	{0x5802, 0x0a},
+	{0x5803, 0x0b},
+	{0x5804, 0x0d},
+	{0x5805, 0x13},
+	{0x5806, 0x09},
+	{0x5807, 0x05},
+	{0x5808, 0x03},
+	{0x5809, 0x03},
+	{0x580a, 0x06},
+	{0x580b, 0x08},
+	{0x580c, 0x05},
+	{0x580d, 0x01},
+	{0x580e, 0x00},
+	{0x580f, 0x00},
+	{0x5810, 0x02},
+	{0x5811, 0x06},
+	{0x5812, 0x05},
+	{0x5813, 0x01},
+	{0x5814, 0x00},
+	{0x5815, 0x00},
+	{0x5816, 0x02},
+	{0x5817, 0x06},
+	{0x5818, 0x09},
+	{0x5819, 0x05},
+	{0x581a, 0x04},
+	{0x581b, 0x04},
+	{0x581c, 0x06},
+	{0x581d, 0x09},
+	{0x581e, 0x11},
+	{0x581f, 0x0c},
+	{0x5820, 0x0b},
+	{0x5821, 0x0b},
+	{0x5822, 0x0d},
+	{0x5823, 0x13},
+	{0x5824, 0x22},
+	{0x5825, 0x26},
+	{0x5826, 0x26},
+	{0x5827, 0x24},
+	{0x5828, 0x24},
+	{0x5829, 0x24},
+	{0x582a, 0x22},
+	{0x582b, 0x20},
+	{0x582c, 0x22},
+	{0x582d, 0x26},
+	{0x582e, 0x22},
+	{0x582f, 0x22},
+	{0x5830, 0x42},
+	{0x5831, 0x22},
+	{0x5832, 0x02},
+	{0x5833, 0x24},
+	{0x5834, 0x22},
+	{0x5835, 0x22},
+	{0x5836, 0x22},
+	{0x5837, 0x26},
+	{0x5838, 0x42},
+	{0x5839, 0x26},
+	{0x583a, 0x06},
+	{0x583b, 0x26},
+	{0x583c, 0x24},
+	{0x583d, 0xce},
+	/* manual AWB,manual AE,close Lenc,open WBC*/
+	{0x3503, 0x03}, /*manual AE*/
+	{0x3501, 0x10},
+	{0x3502, 0x80},
+	{0x350a, 0x00},
+	{0x350b, 0x7f},
+	{0x5001, 0x01}, /*manual AWB*/
+	{0x5180, 0x08},
+	{0x5186, 0x04},
+	{0x5187, 0x00},
+	{0x5188, 0x04},
+	{0x5189, 0x00},
+	{0x518a, 0x04},
+	{0x518b, 0x00},
+	{0x5000, 0x06}, /*No lenc,WBC on*/
+};
-- 
1.9.1