/*
 * Driver for the ov9650 sensor
 *
 * Copyright (C) 2008 Erik Andrén
 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
 *
 * Portions of code to USB interface and ALi driver software,
 * Copyright (c) 2006 Willem Duinker
 * v4l2 interface modeled after the V4L2 driver
 * for SN9C10x PC Camera Controllers
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, version 2.
 *
 */

#ifndef M5602_OV9650_H_
#define M5602_OV9650_H_

#include <linux/dmi.h>

#include "m5602_sensor.h"

/*****************************************************************************/

#define OV9650_GAIN			0x00
#define OV9650_BLUE			0x01
#define OV9650_RED			0x02
#define OV9650_VREF			0x03
#define OV9650_COM1			0x04
#define OV9650_BAVE			0x05
#define OV9650_GEAVE			0x06
#define OV9650_RSVD7			0x07
#define OV9650_PID			0x0a
#define OV9650_VER			0x0b
#define OV9650_COM3			0x0c
#define OV9650_COM5			0x0e
#define OV9650_COM6			0x0f
#define OV9650_AECH			0x10
#define OV9650_CLKRC			0x11
#define OV9650_COM7			0x12
#define OV9650_COM8			0x13
#define OV9650_COM9			0x14
#define OV9650_COM10			0x15
#define OV9650_RSVD16			0x16
#define OV9650_HSTART			0x17
#define OV9650_HSTOP			0x18
#define OV9650_VSTRT			0x19
#define OV9650_VSTOP			0x1a
#define OV9650_PSHFT			0x1b
#define OV9650_MVFP			0x1e
#define OV9650_AEW			0x24
#define OV9650_AEB			0x25
#define OV9650_VPT			0x26
#define OV9650_BBIAS			0x27
#define OV9650_GbBIAS			0x28
#define OV9650_Gr_COM			0x29
#define OV9650_RBIAS			0x2c
#define OV9650_HREF			0x32
#define OV9650_CHLF			0x33
#define OV9650_ARBLM			0x34
#define OV9650_RSVD35			0x35
#define OV9650_RSVD36			0x36
#define OV9650_ADC			0x37
#define OV9650_ACOM38			0x38
#define OV9650_OFON			0x39
#define OV9650_TSLB			0x3a
#define OV9650_COM12			0x3c
#define OV9650_COM13			0x3d
#define OV9650_COM15			0x40
#define OV9650_COM16			0x41
#define OV9650_LCC1			0x62
#define OV9650_LCC2			0x63
#define OV9650_LCC3			0x64
#define OV9650_LCC4			0x65
#define OV9650_LCC5			0x66
#define OV9650_HV			0x69
#define OV9650_DBLV			0x6b
#define OV9650_COM21			0x8b
#define OV9650_COM22			0x8c
#define OV9650_COM24			0x8e
#define OV9650_DBLC1			0x8f
#define OV9650_RSVD94			0x94
#define OV9650_RSVD95			0x95
#define OV9650_RSVD96			0x96
#define OV9650_LCCFB			0x9d
#define OV9650_LCCFR			0x9e
#define OV9650_AECHM			0xa1
#define OV9650_COM26			0xa5
#define OV9650_ACOMA8			0xa8
#define OV9650_ACOMA9			0xa9

#define OV9650_REGISTER_RESET		(1 << 7)
#define OV9650_VGA_SELECT		(1 << 6)
#define OV9650_RGB_SELECT		(1 << 2)
#define OV9650_RAW_RGB_SELECT		(1 << 0)

#define OV9650_FAST_AGC_AEC		(1 << 7)
#define OV9650_AEC_UNLIM_STEP_SIZE	(1 << 6)
#define OV9650_BANDING			(1 << 5)
#define OV9650_AGC_EN			(1 << 2)
#define OV9650_AWB_EN			(1 << 1)
#define OV9650_AEC_EN			(1 << 0)

#define OV9650_VARIOPIXEL		(1 << 2)
#define OV9650_SYSTEM_CLK_SEL		(1 << 7)
#define OV9650_SLAM_MODE 		(1 << 4)

#define OV9650_VFLIP			(1 << 4)
#define OV9650_HFLIP			(1 << 5)

#define GAIN_DEFAULT			0x14
#define RED_GAIN_DEFAULT		0x70
#define BLUE_GAIN_DEFAULT		0x20
#define EXPOSURE_DEFAULT		0x5003

/*****************************************************************************/

/* Kernel module parameters */
extern int force_sensor;
extern int dump_sensor;

int ov9650_probe(struct sd *sd);
int ov9650_init(struct sd *sd);
int ov9650_power_down(struct sd *sd);

int ov9650_read_sensor(struct sd *sd, const u8 address,
		       u8 *i2c_data, const u8 len);
int ov9650_write_sensor(struct sd *sd, const u8 address,
		       u8 *i2c_data, const u8 len);

void ov9650_dump_registers(struct sd *sd);

int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val);
int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val);

static struct m5602_sensor ov9650 = {
	.name = "OV9650",
	.i2c_slave_id = 0x60,
	.probe = ov9650_probe,
	.init = ov9650_init,
	.power_down = ov9650_power_down,
	.read_sensor = ov9650_read_sensor,
	.write_sensor = ov9650_write_sensor,

	.nctrls = 8,
	.ctrls = {
	{
		{
			.id		= V4L2_CID_EXPOSURE,
			.type		= V4L2_CTRL_TYPE_INTEGER,
			.name		= "exposure",
			.minimum	= 0x00,
			.maximum	= 0xffff,
			.step		= 0x1,
			.default_value 	= EXPOSURE_DEFAULT,
			.flags         	= V4L2_CTRL_FLAG_SLIDER
		},
		.set = ov9650_set_exposure,
		.get = ov9650_get_exposure
	}, {
		{
			.id		= V4L2_CID_GAIN,
			.type		= V4L2_CTRL_TYPE_INTEGER,
			.name		= "gain",
			.minimum	= 0x00,
			.maximum	= 0x3ff,
			.step		= 0x1,
			.default_value	= GAIN_DEFAULT,
			.flags		= V4L2_CTRL_FLAG_SLIDER
		},
		.set = ov9650_set_gain,
		.get = ov9650_get_gain
	}, {
		{
			.type 		= V4L2_CTRL_TYPE_INTEGER,
			.name 		= "red balance",
			.minimum 	= 0x00,
			.maximum 	= 0xff,
			.step 		= 0x1,
			.default_value 	= RED_GAIN_DEFAULT,
			.flags         	= V4L2_CTRL_FLAG_SLIDER
		},
		.set = ov9650_set_red_balance,
		.get = ov9650_get_red_balance
	}, {
		{
			.type 		= V4L2_CTRL_TYPE_INTEGER,
			.name 		= "blue balance",
			.minimum 	= 0x00,
			.maximum 	= 0xff,
			.step 		= 0x1,
			.default_value 	= BLUE_GAIN_DEFAULT,
			.flags         	= V4L2_CTRL_FLAG_SLIDER
		},
		.set = ov9650_set_blue_balance,
		.get = ov9650_get_blue_balance
	}, {
		{
			.id 		= V4L2_CID_HFLIP,
			.type 		= V4L2_CTRL_TYPE_BOOLEAN,
			.name 		= "horizontal flip",
			.minimum 	= 0,
			.maximum 	= 1,
			.step 		= 1,
			.default_value 	= 0
		},
		.set = ov9650_set_hflip,
		.get = ov9650_get_hflip
	}, {
		{
			.id 		= V4L2_CID_VFLIP,
			.type 		= V4L2_CTRL_TYPE_BOOLEAN,
			.name 		= "vertical flip",
			.minimum 	= 0,
			.maximum 	= 1,
			.step 		= 1,
			.default_value 	= 0
		},
		.set = ov9650_set_vflip,
		.get = ov9650_get_vflip
	}, {
		{
			.id 		= V4L2_CID_AUTO_WHITE_BALANCE,
			.type 		= V4L2_CTRL_TYPE_BOOLEAN,
			.name 		= "auto white balance",
			.minimum 	= 0,
			.maximum 	= 1,
			.step 		= 1,
			.default_value 	= 0
		},
		.set = ov9650_set_auto_white_balance,
		.get = ov9650_get_auto_white_balance
	}, {
		{
			.id 		= V4L2_CID_AUTOGAIN,
			.type 		= V4L2_CTRL_TYPE_BOOLEAN,
			.name 		= "auto gain control",
			.minimum 	= 0,
			.maximum 	= 1,
			.step 		= 1,
			.default_value 	= 0
		},
		.set = ov9650_set_auto_gain,
		.get = ov9650_get_auto_gain
	}
	},

	.nmodes = 1,
	.modes = {
	{
		M5602_DEFAULT_FRAME_WIDTH,
		M5602_DEFAULT_FRAME_HEIGHT,
		V4L2_PIX_FMT_SBGGR8,
		V4L2_FIELD_NONE,
		.sizeimage =
			M5602_DEFAULT_FRAME_WIDTH * M5602_DEFAULT_FRAME_HEIGHT,
		.bytesperline = M5602_DEFAULT_FRAME_WIDTH,
		.colorspace = V4L2_COLORSPACE_SRGB,
		.priv = 1
	}
	}
};

static const unsigned char preinit_ov9650[][3] =
{
	/* [INITCAM] */
	{BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},
	{BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},
	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
	{BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},

	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x08},
	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
	{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x00},
	{BRIDGE, M5602_XB_GPIO_DAT, 0x00},
	{BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a},
	/* Reset chip */
	{SENSOR, OV9650_COM7, OV9650_REGISTER_RESET},
	/* Enable double clock */
	{SENSOR, OV9650_CLKRC, 0x80},
	/* Do something out of spec with the power */
	{SENSOR, OV9650_OFON, 0x40}
};

static const unsigned char init_ov9650[][3] =
{
	/* [INITCAM] */
	{BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},
	{BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},
	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
	{BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},

	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x08},
	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
	{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x00},
	{BRIDGE, M5602_XB_GPIO_DAT, 0x00},
	{BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a},
	/* Reset chip */
	{SENSOR, OV9650_COM7, OV9650_REGISTER_RESET},
	/* Enable double clock */
	{SENSOR, OV9650_CLKRC, 0x80},
	/* Do something out of spec with the power */
	{SENSOR, OV9650_OFON, 0x40},

	/* Set QQVGA */
	{SENSOR, OV9650_COM1, 0x20},
	/* Set fast AGC/AEC algorithm with unlimited step size */
	{SENSOR, OV9650_COM8, OV9650_FAST_AGC_AEC |
			      OV9650_AEC_UNLIM_STEP_SIZE |
			      OV9650_AWB_EN | OV9650_AGC_EN},

	{SENSOR, OV9650_CHLF, 0x10},
	{SENSOR, OV9650_ARBLM, 0xbf},
	{SENSOR, OV9650_ACOM38, 0x81},
	/* Turn off color matrix coefficient double option */
	{SENSOR, OV9650_COM16, 0x00},
		/* Enable color matrix for RGB/YUV, Delay Y channel,
	set output Y/UV delay to 1 */
	{SENSOR, OV9650_COM13, 0x19},
	/* Enable digital BLC, Set output mode to U Y V Y */
	{SENSOR, OV9650_TSLB, 0x0c},
	/* Limit the AGC/AEC stable upper region */
	{SENSOR, OV9650_COM24, 0x00},
	/* Enable HREF and some out of spec things */
	{SENSOR, OV9650_COM12, 0x73},
		/* Set all DBLC offset signs to positive and
	do some out of spec stuff */
	{SENSOR, OV9650_DBLC1, 0xdf},
	{SENSOR, OV9650_COM21, 0x06},
	{SENSOR, OV9650_RSVD35, 0x91},
	/* Necessary, no camera stream without it */
	{SENSOR, OV9650_RSVD16, 0x06},
	{SENSOR, OV9650_RSVD94, 0x99},
	{SENSOR, OV9650_RSVD95, 0x99},
	{SENSOR, OV9650_RSVD96, 0x04},
	/* Enable full range output */
	{SENSOR, OV9650_COM15, 0x0},
		/* Enable HREF at optical black, enable ADBLC bias,
	enable ADBLC, reset timings at format change */
	{SENSOR, OV9650_COM6, 0x4b},
	/* Subtract 32 from the B channel bias */
	{SENSOR, OV9650_BBIAS, 0xa0},
	/* Subtract 32 from the Gb channel bias */
	{SENSOR, OV9650_GbBIAS, 0xa0},
	/* Do not bypass the analog BLC and to some out of spec stuff */
	{SENSOR, OV9650_Gr_COM, 0x00},
	/* Subtract 32 from the R channel bias */
	{SENSOR, OV9650_RBIAS, 0xa0},
	/* Subtract 32 from the R channel bias */
	{SENSOR, OV9650_RBIAS, 0x0},
	{SENSOR, OV9650_COM26, 0x80},
	{SENSOR, OV9650_ACOMA9, 0x98},
	/* Set the AGC/AEC stable region upper limit */
	{SENSOR, OV9650_AEW, 0x68},
	/* Set the AGC/AEC stable region lower limit */
	{SENSOR, OV9650_AEB, 0x5c},
	/* Set the high and low limit nibbles to 3 */
	{SENSOR, OV9650_VPT, 0xc3},
		/* Set the Automatic Gain Ceiling (AGC) to 128x,
	drop VSYNC at frame drop,
	limit exposure timing,
	drop frame when the AEC step is larger than the exposure gap */
	{SENSOR, OV9650_COM9, 0x6e},
	/* Set VSYNC negative, Set RESET to SLHS (slave mode horizontal sync)
	and set PWDN to SLVS (slave mode vertical sync) */
	{SENSOR, OV9650_COM10, 0x42},
	/* Set horizontal column start high to default value */
	{SENSOR, OV9650_HSTART, 0x1a},
	/* Set horizontal column end */
	{SENSOR, OV9650_HSTOP, 0xbf},
	/* Complementing register to the two writes above */
	{SENSOR, OV9650_HREF, 0xb2},
	/* Set vertical row start high bits */
	{SENSOR, OV9650_VSTRT, 0x02},
	/* Set vertical row end low bits */
	{SENSOR, OV9650_VSTOP, 0x7e},
	/* Set complementing vertical frame control */
	{SENSOR, OV9650_VREF, 0x10},
	/* Set raw RGB output format with VGA resolution */
	{SENSOR, OV9650_COM7, OV9650_VGA_SELECT |
			      OV9650_RGB_SELECT |
			      OV9650_RAW_RGB_SELECT},
	{SENSOR, OV9650_ADC, 0x04},
	{SENSOR, OV9650_HV, 0x40},
	/* Enable denoise, and white-pixel erase */
	{SENSOR, OV9650_COM22, 0x23},

	/* Set the high bits of the exposure value */
	{SENSOR, OV9650_AECH, ((EXPOSURE_DEFAULT & 0xff00) >> 8)},

	/* Set the low bits of the exposure value */
	{SENSOR, OV9650_COM1, (EXPOSURE_DEFAULT & 0xff)},
	{SENSOR, OV9650_GAIN, GAIN_DEFAULT},
	{SENSOR, OV9650_BLUE, BLUE_GAIN_DEFAULT},
	{SENSOR, OV9650_RED, RED_GAIN_DEFAULT},

	{SENSOR, OV9650_COM3, OV9650_VARIOPIXEL},
	{SENSOR, OV9650_COM5, OV9650_SYSTEM_CLK_SEL},

	{BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x82},
	{BRIDGE, M5602_XB_LINE_OF_FRAME_L, 0x00},
	{BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82},
	{BRIDGE, M5602_XB_PIX_OF_LINE_L, 0x00},
	{BRIDGE, M5602_XB_SIG_INI, 0x01},
	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
	{BRIDGE, M5602_XB_VSYNC_PARA, 0x09},
	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
	{BRIDGE, M5602_XB_VSYNC_PARA, 0x01},
	{BRIDGE, M5602_XB_VSYNC_PARA, 0xe0},
	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
	{BRIDGE, M5602_XB_HSYNC_PARA, 0x00},
	{BRIDGE, M5602_XB_HSYNC_PARA, 0x5e},
	{BRIDGE, M5602_XB_HSYNC_PARA, 0x02},
	{BRIDGE, M5602_XB_HSYNC_PARA, 0xde}
};

static const unsigned char power_down_ov9650[][3] =
{
	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x04},
	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
	{SENSOR, OV9650_COM7, 0x80},
	{SENSOR, OV9650_OFON, 0xf4},
	{SENSOR, OV9650_MVFP, 0x80},
	{SENSOR, OV9650_DBLV, 0x3f},
	{SENSOR, OV9650_RSVD36, 0x49},
	{SENSOR, OV9650_COM7, 0x05},

	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
	{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
	{BRIDGE, M5602_XB_GPIO_EN_L, 0x06},
	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x02},
	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x04},
	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0}
};

/* Vertically and horizontally flips the image if matched, needed for machines
   where the sensor is mounted upside down */
static
    const
	struct dmi_system_id ov9650_flip_dmi_table[] = {
	{
		.ident = "ASUS A6VC",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "A6VC")
		}
	},
	{
		.ident = "ASUS A6VM",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "A6VM")
		}
	},
	{
		.ident = "ASUS A6JC",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "A6JC")
		}
	},
	{
		.ident = "ASUS A6Kt",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "A6Kt")
		}
	},
	{ }
};

#endif