drivers/media/usb/gspca/sonixj.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Sonix sn9c102p sn9c105 sn9c120 (jpeg) subdriver
 *
 * Copyright (C) 2009-2011 Jean-François Moine <http://moinejf.free.fr>
 * Copyright (C) 2005 Michel Xhaard mxhaard@magic.fr
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define MODULE_NAME "sonixj"

#include <linux/input.h>
#include "gspca.h"
#include "jpeg.h"

MODULE_AUTHOR("Jean-François Moine <http://moinejf.free.fr>");
MODULE_DESCRIPTION("GSPCA/SONIX JPEG USB Camera Driver");
MODULE_LICENSE("GPL");

/* specific webcam descriptor */
struct sd {
	struct gspca_dev gspca_dev;	/* !! must be the first item */

	atomic_t avg_lum;
	struct v4l2_ctrl *brightness;
	struct v4l2_ctrl *contrast;
	struct v4l2_ctrl *saturation;
	struct { /* red/blue balance control cluster */
		struct v4l2_ctrl *red_bal;
		struct v4l2_ctrl *blue_bal;
	};
	struct { /* hflip/vflip control cluster */
		struct v4l2_ctrl *vflip;
		struct v4l2_ctrl *hflip;
	};
	struct v4l2_ctrl *gamma;
	struct v4l2_ctrl *illum;
	struct v4l2_ctrl *sharpness;
	struct v4l2_ctrl *freq;
	u32 exposure;

	struct work_struct work;

	u32 pktsz;			/* (used by pkt_scan) */
	u16 npkt;
	s8 nchg;
	s8 short_mark;

	u8 quality;			/* image quality */
#define QUALITY_MIN 25
#define QUALITY_MAX 90
#define QUALITY_DEF 70

	u8 reg01;
	u8 reg17;
	u8 reg18;
	u8 flags;

	s8 ag_cnt;
#define AG_CNT_START 13

	u8 bridge;
#define BRIDGE_SN9C102P 0
#define BRIDGE_SN9C105 1
#define BRIDGE_SN9C110 2
#define BRIDGE_SN9C120 3
	u8 sensor;			/* Type of image sensor chip */
	u8 i2c_addr;

	u8 jpeg_hdr[JPEG_HDR_SZ];
};
enum sensors {
	SENSOR_ADCM1700,
	SENSOR_GC0307,
	SENSOR_HV7131R,
	SENSOR_MI0360,
	SENSOR_MI0360B,
	SENSOR_MO4000,
	SENSOR_MT9V111,
	SENSOR_OM6802,
	SENSOR_OV7630,
	SENSOR_OV7648,
	SENSOR_OV7660,
	SENSOR_PO1030,
	SENSOR_PO2030N,
	SENSOR_SOI768,
	SENSOR_SP80708,
};

static void qual_upd(struct work_struct *work);

/* device flags */
#define F_PDN_INV	0x01	/* inverse pin S_PWR_DN / sn_xxx tables */
#define F_ILLUM		0x02	/* presence of illuminator */

/* sn9c1xx definitions */
/* register 0x01 */
#define S_PWR_DN	0x01	/* sensor power down */
#define S_PDN_INV	0x02	/* inverse pin S_PWR_DN */
#define V_TX_EN		0x04	/* video transfer enable */
#define LED		0x08	/* output to pin LED */
#define SCL_SEL_OD	0x20	/* open-drain mode */
#define SYS_SEL_48M	0x40	/* system clock 0: 24MHz, 1: 48MHz */
/* register 0x17 */
#define MCK_SIZE_MASK	0x1f	/* sensor master clock */
#define SEN_CLK_EN	0x20	/* enable sensor clock */
#define DEF_EN		0x80	/* defect pixel by 0: soft, 1: hard */

static const struct v4l2_pix_format cif_mode[] = {
	{352, 288, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 352,
		.sizeimage = 352 * 288 * 4 / 8 + 590,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0},
};
static const struct v4l2_pix_format vga_mode[] = {
	{160, 120, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 160,
		.sizeimage = 160 * 120 * 4 / 8 + 590,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 2},
	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 320,
		.sizeimage = 320 * 240 * 3 / 8 + 590,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 1},
	{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 640,
		/* Note 3 / 8 is not large enough, not even 5 / 8 is ?! */
		.sizeimage = 640 * 480 * 3 / 4 + 590,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0},
};

static const u8 sn_adcm1700[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x43,	0x60,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x80,	0x51,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x05,	0x01,	0x05,	0x16,	0x12,	0x42,
/*	reg18	reg19	reg1a	reg1b */
	0x06,	0x00,	0x00,	0x00
};

static const u8 sn_gc0307[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x61,	0x62,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x80,	0x21,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x03,	0x01,	0x08,	0x28,	0x1e,	0x02,
/*	reg18	reg19	reg1a	reg1b */
	0x06,	0x00,	0x00,	0x00
};

static const u8 sn_hv7131[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x03,	0x60,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x11,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x01,	0x03,	0x28,	0x1e,	0x41,
/*	reg18	reg19	reg1a	reg1b */
	0x0a,	0x00,	0x00,	0x00
};

static const u8 sn_mi0360[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x63,	0x40,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x5d,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x02,	0x0a,	0x28,	0x1e,	0x61,
/*	reg18	reg19	reg1a	reg1b */
	0x06,	0x00,	0x00,	0x00
};

static const u8 sn_mi0360b[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x61,	0x40,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x5d,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x02,	0x0a,	0x28,	0x1e,	0x40,
/*	reg18	reg19	reg1a	reg1b */
	0x06,	0x00,	0x00,	0x00
};

static const u8 sn_mo4000[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x23,	0x60,	0x00,	0x1a,	0x00,	0x20,	0x18,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x21,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	 0x00,	0x0b,	0x0f,	0x14,	0x28,	0x1e,	0x40,
/*	reg18	reg19	reg1a	reg1b */
	0x08,	0x00,	0x00,	0x00
};

static const u8 sn_mt9v111[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x61,	0x40,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x5c,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x02,	0x1c,	0x28,	0x1e,	0x40,
/*	reg18	reg19	reg1a	reg1b */
	0x06,	0x00,	0x00,	0x00
};

static const u8 sn_om6802[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x23,	0x72,	0x00,	0x1a,	0x20,	0x20,	0x19,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x80,	0x34,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x51,	0x01,	0x00,	0x28,	0x1e,	0x40,
/*	reg18	reg19	reg1a	reg1b */
	0x05,	0x00,	0x00,	0x00
};

static const u8 sn_ov7630[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x21,	0x40,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x21,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x04,	0x01,	0x0a,	0x28,	0x1e,	0xc2,
/*	reg18	reg19	reg1a	reg1b */
	0x0b,	0x00,	0x00,	0x00
};

static const u8 sn_ov7648[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x63,	0x40,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x21,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x01,	0x00,	0x28,	0x1e,	0x00,
/*	reg18	reg19	reg1a	reg1b */
	0x0b,	0x00,	0x00,	0x00
};

static const u8 sn_ov7660[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x61,	0x40,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x21,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x01,	0x01,	0x08,	0x28,	0x1e,	0x20,
/*	reg18	reg19	reg1a	reg1b */
	0x07,	0x00,	0x00,	0x00
};

static const u8 sn_po1030[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x21,	0x62,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x6e,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x06,	0x06,	0x28,	0x1e,	0x00,
/*	reg18	reg19	reg1a	reg1b */
	0x07,	0x00,	0x00,	0x00
};

static const u8 sn_po2030n[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x63,	0x40,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x6e,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x01,	0x14,	0x28,	0x1e,	0x00,
/*	reg18	reg19	reg1a	reg1b */
	0x07,	0x00,	0x00,	0x00
};

static const u8 sn_soi768[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x21,	0x40,	0x00,	0x1a,	0x00,	0x00,	0x00,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x21,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x01,	0x08,	0x28,	0x1e,	0x00,
/*	reg18	reg19	reg1a	reg1b */
	0x07,	0x00,	0x00,	0x00
};

static const u8 sn_sp80708[0x1c] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x63,	0x60,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0x81,	0x18,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x03,	0x04,	0x28,	0x1e,	0x00,
/*	reg18	reg19	reg1a	reg1b */
	0x07,	0x00,	0x00,	0x00
};

/* sequence specific to the sensors - !! index = SENSOR_xxx */
static const u8 *sn_tb[] = {
[SENSOR_ADCM1700] =	sn_adcm1700,
[SENSOR_GC0307] =	sn_gc0307,
[SENSOR_HV7131R] =	sn_hv7131,
[SENSOR_MI0360] =	sn_mi0360,
[SENSOR_MI0360B] =	sn_mi0360b,
[SENSOR_MO4000] =	sn_mo4000,
[SENSOR_MT9V111] =	sn_mt9v111,
[SENSOR_OM6802] =	sn_om6802,
[SENSOR_OV7630] =	sn_ov7630,
[SENSOR_OV7648] =	sn_ov7648,
[SENSOR_OV7660] =	sn_ov7660,
[SENSOR_PO1030] =	sn_po1030,
[SENSOR_PO2030N] =	sn_po2030n,
[SENSOR_SOI768] =	sn_soi768,
[SENSOR_SP80708] =	sn_sp80708,
};

/* default gamma table */
static const u8 gamma_def[17] = {
	0x00, 0x2d, 0x46, 0x5a, 0x6c, 0x7c, 0x8b, 0x99,
	0xa6, 0xb2, 0xbf, 0xca, 0xd5, 0xe0, 0xeb, 0xf5, 0xff
};
/* gamma for sensor ADCM1700 */
static const u8 gamma_spec_0[17] = {
	0x0f, 0x39, 0x5a, 0x74, 0x86, 0x95, 0xa6, 0xb4,
	0xbd, 0xc4, 0xcc, 0xd4, 0xd5, 0xde, 0xe4, 0xed, 0xf5
};
/* gamma for sensors HV7131R and MT9V111 */
static const u8 gamma_spec_1[17] = {
	0x08, 0x3a, 0x52, 0x65, 0x75, 0x83, 0x91, 0x9d,
	0xa9, 0xb4, 0xbe, 0xc8, 0xd2, 0xdb, 0xe4, 0xed, 0xf5
};
/* gamma for sensor GC0307 */
static const u8 gamma_spec_2[17] = {
	0x14, 0x37, 0x50, 0x6a, 0x7c, 0x8d, 0x9d, 0xab,
	0xb5, 0xbf, 0xc2, 0xcb, 0xd1, 0xd6, 0xdb, 0xe1, 0xeb
};
/* gamma for sensor SP80708 */
static const u8 gamma_spec_3[17] = {
	0x0a, 0x2d, 0x4e, 0x68, 0x7d, 0x8f, 0x9f, 0xab,
	0xb7, 0xc2, 0xcc, 0xd3, 0xd8, 0xde, 0xe2, 0xe5, 0xe6
};

/* color matrix and offsets */
static const u8 reg84[] = {
	0x14, 0x00, 0x27, 0x00, 0x07, 0x00,	/* YR YG YB gains */
	0xe8, 0x0f, 0xda, 0x0f, 0x40, 0x00,	/* UR UG UB */
	0x3e, 0x00, 0xcd, 0x0f, 0xf7, 0x0f,	/* VR VG VB */
	0x00, 0x00, 0x00			/* YUV offsets */
};

#define DELAY	0xdd

static const u8 adcm1700_sensor_init[][8] = {
	{0xa0, 0x51, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x04, 0x08, 0x00, 0x00, 0x00, 0x10},	/* reset */
	{DELAY, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
	{0xb0, 0x51, 0x04, 0x00, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
	{0xb0, 0x51, 0x0c, 0xe0, 0x2e, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x10, 0x02, 0x02, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x14, 0x0e, 0x0e, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x1c, 0x00, 0x80, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x20, 0x01, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
	{0xb0, 0x51, 0x04, 0x04, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
	{0xb0, 0x51, 0x04, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x51, 0xfe, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x14, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x32, 0x00, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 adcm1700_sensor_param1[][8] = {
	{0xb0, 0x51, 0x26, 0xf9, 0x01, 0x00, 0x00, 0x10},	/* exposure? */
	{0xd0, 0x51, 0x1e, 0x8e, 0x8e, 0x8e, 0x8e, 0x10},

	{0xa0, 0x51, 0xfe, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x00, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x51, 0xfe, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x32, 0x00, 0x72, 0x00, 0x00, 0x10},
	{0xd0, 0x51, 0x1e, 0xbe, 0xd7, 0xe8, 0xbe, 0x10},	/* exposure? */

	{0xa0, 0x51, 0xfe, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x00, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x51, 0xfe, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xb0, 0x51, 0x32, 0x00, 0xa2, 0x00, 0x00, 0x10},
	{}
};
static const u8 gc0307_sensor_init[][8] = {
	{0xa0, 0x21, 0x43, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x44, 0xa2, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x01, 0x6a, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x02, 0x70, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x1d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x11, 0x05, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x05, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x06, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x07, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x08, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x09, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x0a, 0xe8, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x0b, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x0c, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x0d, 0x22, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x0e, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x0f, 0xb2, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x12, 0x70, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /*delay 10ms*/
	{0xa0, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x15, 0xb8, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x16, 0x13, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x17, 0x52, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x18, 0x50, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x1e, 0x0d, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x1f, 0x32, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x61, 0x90, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x63, 0x70, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x65, 0x98, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x67, 0x90, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x04, 0x96, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x45, 0x27, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x47, 0x2c, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x43, 0x47, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x44, 0xd8, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 gc0307_sensor_param1[][8] = {
	{0xa0, 0x21, 0x68, 0x13, 0x00, 0x00, 0x00, 0x10},
	{0xd0, 0x21, 0x61, 0x80, 0x00, 0x80, 0x00, 0x10},
	{0xc0, 0x21, 0x65, 0x80, 0x00, 0x80, 0x00, 0x10},
	{0xc0, 0x21, 0x63, 0xa0, 0x00, 0xa6, 0x00, 0x10},
/*param3*/
	{0xa0, 0x21, 0x01, 0x6e, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x21, 0x02, 0x88, 0x00, 0x00, 0x00, 0x10},
	{}
};

static const u8 hv7131r_sensor_init[][8] = {
	{0xc1, 0x11, 0x01, 0x08, 0x01, 0x00, 0x00, 0x10},
	{0xb1, 0x11, 0x34, 0x17, 0x7f, 0x00, 0x00, 0x10},
	{0xd1, 0x11, 0x40, 0xff, 0x7f, 0x7f, 0x7f, 0x10},
/*	{0x91, 0x11, 0x44, 0x00, 0x00, 0x00, 0x00, 0x10}, */
	{0xd1, 0x11, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x11, 0x14, 0x01, 0xe2, 0x02, 0x82, 0x10},
/*	{0x91, 0x11, 0x18, 0x00, 0x00, 0x00, 0x00, 0x10}, */

	{0xa1, 0x11, 0x01, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x01, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xc1, 0x11, 0x25, 0x00, 0x61, 0xa8, 0x00, 0x10},
	{0xa1, 0x11, 0x30, 0x22, 0x00, 0x00, 0x00, 0x10},
	{0xc1, 0x11, 0x31, 0x20, 0x2e, 0x20, 0x00, 0x10},
	{0xc1, 0x11, 0x25, 0x00, 0xc3, 0x50, 0x00, 0x10},
	{0xa1, 0x11, 0x30, 0x07, 0x00, 0x00, 0x00, 0x10}, /* gain14 */
	{0xc1, 0x11, 0x31, 0x10, 0x10, 0x10, 0x00, 0x10}, /* r g b 101a10 */

	{0xa1, 0x11, 0x01, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x20, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x21, 0xd0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x22, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x23, 0x09, 0x00, 0x00, 0x00, 0x10},

	{0xa1, 0x11, 0x01, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x20, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x21, 0xd0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x22, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x23, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x11, 0x01, 0x18, 0x00, 0x00, 0x00, 0x10},
							/* set sensor clock */
	{}
};
static const u8 mi0360_sensor_init[][8] = {
	{0xb1, 0x5d, 0x07, 0x00, 0x02, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x0d, 0x00, 0x01, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x01, 0x00, 0x08, 0x00, 0x16, 0x10},
	{0xd1, 0x5d, 0x03, 0x01, 0xe2, 0x02, 0x82, 0x10},
	{0xd1, 0x5d, 0x05, 0x00, 0x09, 0x00, 0x53, 0x10},
	{0xb1, 0x5d, 0x0d, 0x00, 0x02, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x12, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x14, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x16, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x18, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x1a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x32, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x20, 0x91, 0x01, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x22, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x24, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x26, 0x00, 0x00, 0x00, 0x24, 0x10},
	{0xd1, 0x5d, 0x2f, 0xf7, 0xb0, 0x00, 0x04, 0x10},
	{0xd1, 0x5d, 0x31, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x33, 0x00, 0x00, 0x01, 0x00, 0x10},
	{0xb1, 0x5d, 0x3d, 0x06, 0x8f, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x40, 0x01, 0xe0, 0x00, 0xd1, 0x10},
	{0xb1, 0x5d, 0x44, 0x00, 0x82, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x58, 0x00, 0x78, 0x00, 0x43, 0x10},
	{0xd1, 0x5d, 0x5a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x5e, 0x00, 0x00, 0xa3, 0x1d, 0x10},
	{0xb1, 0x5d, 0x62, 0x04, 0x11, 0x00, 0x00, 0x10},

	{0xb1, 0x5d, 0x20, 0x91, 0x01, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x20, 0x11, 0x01, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x09, 0x00, 0x64, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x2b, 0x00, 0xa0, 0x00, 0xb0, 0x10},
	{0xd1, 0x5d, 0x2d, 0x00, 0xa0, 0x00, 0xa0, 0x10},

	{0xb1, 0x5d, 0x0a, 0x00, 0x02, 0x00, 0x00, 0x10}, /* sensor clck ?2 */
	{0xb1, 0x5d, 0x06, 0x00, 0x30, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x05, 0x00, 0x0a, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x09, 0x02, 0x35, 0x00, 0x00, 0x10}, /* exposure 2 */

	{0xd1, 0x5d, 0x2b, 0x00, 0xb9, 0x00, 0xe3, 0x10},
	{0xd1, 0x5d, 0x2d, 0x00, 0x5f, 0x00, 0xb9, 0x10}, /* 42 */
/*	{0xb1, 0x5d, 0x35, 0x00, 0x67, 0x00, 0x00, 0x10}, * gain orig */
/*	{0xb1, 0x5d, 0x35, 0x00, 0x20, 0x00, 0x00, 0x10}, * gain */
	{0xb1, 0x5d, 0x07, 0x00, 0x03, 0x00, 0x00, 0x10}, /* update */
	{0xb1, 0x5d, 0x07, 0x00, 0x02, 0x00, 0x00, 0x10}, /* sensor on */
	{}
};
static const u8 mi0360b_sensor_init[][8] = {
	{0xb1, 0x5d, 0x07, 0x00, 0x02, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x0d, 0x00, 0x01, 0x00, 0x00, 0x10},
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /*delay 20ms*/
	{0xb1, 0x5d, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /*delay 20ms*/
	{0xd1, 0x5d, 0x01, 0x00, 0x08, 0x00, 0x16, 0x10},
	{0xd1, 0x5d, 0x03, 0x01, 0xe2, 0x02, 0x82, 0x10},
	{0xd1, 0x5d, 0x05, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x0d, 0x00, 0x02, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x12, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x14, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x16, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x18, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x1a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x32, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x20, 0x11, 0x01, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x22, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x24, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x26, 0x00, 0x00, 0x00, 0x24, 0x10},
	{0xd1, 0x5d, 0x2f, 0xf7, 0xb0, 0x00, 0x04, 0x10},
	{0xd1, 0x5d, 0x31, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x33, 0x00, 0x00, 0x01, 0x00, 0x10},
	{0xb1, 0x5d, 0x3d, 0x06, 0x8f, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x40, 0x01, 0xe0, 0x00, 0xd1, 0x10},
	{0xb1, 0x5d, 0x44, 0x00, 0x82, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x58, 0x00, 0x78, 0x00, 0x43, 0x10},
	{0xd1, 0x5d, 0x5a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x5e, 0x00, 0x00, 0xa3, 0x1d, 0x10},
	{0xb1, 0x5d, 0x62, 0x04, 0x11, 0x00, 0x00, 0x10},

	{0xb1, 0x5d, 0x20, 0x11, 0x01, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x20, 0x11, 0x01, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x09, 0x00, 0x64, 0x00, 0x00, 0x10},
	{0xd1, 0x5d, 0x2b, 0x00, 0x33, 0x00, 0xa0, 0x10},
	{0xd1, 0x5d, 0x2d, 0x00, 0xa0, 0x00, 0x33, 0x10},
	{}
};
static const u8 mi0360b_sensor_param1[][8] = {
	{0xb1, 0x5d, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x06, 0x00, 0x53, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x05, 0x00, 0x09, 0x00, 0x00, 0x10},
	{0xb1, 0x5d, 0x09, 0x02, 0x35, 0x00, 0x00, 0x10}, /* exposure 2 */

	{0xd1, 0x5d, 0x2b, 0x00, 0xd1, 0x01, 0xc9, 0x10},
	{0xd1, 0x5d, 0x2d, 0x00, 0xed, 0x00, 0xd1, 0x10},
	{0xb1, 0x5d, 0x07, 0x00, 0x03, 0x00, 0x00, 0x10}, /* update */
	{0xb1, 0x5d, 0x07, 0x00, 0x02, 0x00, 0x00, 0x10}, /* sensor on */
	{}
};
static const u8 mo4000_sensor_init[][8] = {
	{0xa1, 0x21, 0x01, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x02, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x04, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x05, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x05, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x06, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x06, 0x81, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x11, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x11, 0x20, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x11, 0x30, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x11, 0x38, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x11, 0x38, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x12, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x0f, 0x20, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x10, 0x20, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x11, 0x38, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 mt9v111_sensor_init[][8] = {
	{0xb1, 0x5c, 0x0d, 0x00, 0x01, 0x00, 0x00, 0x10}, /* reset? */
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 20ms */
	{0xb1, 0x5c, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x5c, 0x01, 0x00, 0x01, 0x00, 0x00, 0x10}, /* IFP select */
	{0xb1, 0x5c, 0x08, 0x04, 0x80, 0x00, 0x00, 0x10}, /* output fmt ctrl */
	{0xb1, 0x5c, 0x06, 0x00, 0x00, 0x00, 0x00, 0x10}, /* op mode ctrl */
	{0xb1, 0x5c, 0x01, 0x00, 0x04, 0x00, 0x00, 0x10}, /* sensor select */
	{0xb1, 0x5c, 0x08, 0x00, 0x08, 0x00, 0x00, 0x10}, /* row start */
	{0xb1, 0x5c, 0x02, 0x00, 0x16, 0x00, 0x00, 0x10}, /* col start */
	{0xb1, 0x5c, 0x03, 0x01, 0xe7, 0x00, 0x00, 0x10}, /* window height */
	{0xb1, 0x5c, 0x04, 0x02, 0x87, 0x00, 0x00, 0x10}, /* window width */
	{0xb1, 0x5c, 0x07, 0x30, 0x02, 0x00, 0x00, 0x10}, /* output ctrl */
	{0xb1, 0x5c, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x10}, /* shutter delay */
	{0xb1, 0x5c, 0x12, 0x00, 0xb0, 0x00, 0x00, 0x10}, /* zoom col start */
	{0xb1, 0x5c, 0x13, 0x00, 0x7c, 0x00, 0x00, 0x10}, /* zoom row start */
	{0xb1, 0x5c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x10}, /* digital zoom */
	{0xb1, 0x5c, 0x20, 0x00, 0x00, 0x00, 0x00, 0x10}, /* read mode */
	{0xb1, 0x5c, 0x20, 0x00, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 mt9v111_sensor_param1[][8] = {
	{0xd1, 0x5c, 0x2b, 0x00, 0x33, 0x00, 0xad, 0x10}, /* G1 and B gains */
	{0xd1, 0x5c, 0x2d, 0x00, 0xad, 0x00, 0x33, 0x10}, /* R and G2 gains */
	{0xb1, 0x5c, 0x06, 0x00, 0x40, 0x00, 0x00, 0x10}, /* vert blanking */
	{0xb1, 0x5c, 0x05, 0x00, 0x09, 0x00, 0x00, 0x10}, /* horiz blanking */
	{0xb1, 0x5c, 0x35, 0x01, 0xc0, 0x00, 0x00, 0x10}, /* global gain */
	{}
};
static const u8 om6802_init0[2][8] = {
/*fixme: variable*/
	{0xa0, 0x34, 0x29, 0x0e, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0x23, 0xb0, 0x00, 0x00, 0x00, 0x10},
};
static const u8 om6802_sensor_init[][8] = {
	{0xa0, 0x34, 0xdf, 0x6d, 0x00, 0x00, 0x00, 0x10},
						/* factory mode */
	{0xa0, 0x34, 0xdd, 0x18, 0x00, 0x00, 0x00, 0x10},
						/* output raw RGB */
	{0xa0, 0x34, 0x5a, 0xc0, 0x00, 0x00, 0x00, 0x10},
/*	{0xa0, 0x34, 0xfb, 0x11, 0x00, 0x00, 0x00, 0x10}, */
	{0xa0, 0x34, 0xf0, 0x04, 0x00, 0x00, 0x00, 0x10},
		/* auto-exposure speed (0) / white balance mode (auto RGB) */
/*	{0xa0, 0x34, 0xf1, 0x02, 0x00, 0x00, 0x00, 0x10},
							 * set color mode */
/*	{0xa0, 0x34, 0xfe, 0x5b, 0x00, 0x00, 0x00, 0x10},
						 * max AGC value in AE */
/*	{0xa0, 0x34, 0xe5, 0x00, 0x00, 0x00, 0x00, 0x10},
							 * preset AGC */
/*	{0xa0, 0x34, 0xe6, 0x00, 0x00, 0x00, 0x00, 0x10},
						 * preset brightness */
/*	{0xa0, 0x34, 0xe7, 0x00, 0x00, 0x00, 0x00, 0x10},
							 * preset contrast */
/*	{0xa0, 0x34, 0xe8, 0x31, 0x00, 0x00, 0x00, 0x10},
							 * preset gamma */
	{0xa0, 0x34, 0xe9, 0x0f, 0x00, 0x00, 0x00, 0x10},
				/* luminance mode (0x4f -> AutoExpo on) */
	{0xa0, 0x34, 0xe4, 0xff, 0x00, 0x00, 0x00, 0x10},
							/* preset shutter */
/*	{0xa0, 0x34, 0xef, 0x00, 0x00, 0x00, 0x00, 0x10},
							 * auto frame rate */
/*	{0xa0, 0x34, 0xfb, 0xee, 0x00, 0x00, 0x00, 0x10}, */
	{0xa0, 0x34, 0x5d, 0x80, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 om6802_sensor_param1[][8] = {
	{0xa0, 0x34, 0x71, 0x84, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0x72, 0x05, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0x68, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0x69, 0x01, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 ov7630_sensor_init[][8] = {
	{0xa1, 0x21, 0x76, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x12, 0xc8, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 20ms */
	{0xa1, 0x21, 0x12, 0x48, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x12, 0xc8, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 20ms */
	{0xa1, 0x21, 0x12, 0x48, 0x00, 0x00, 0x00, 0x10},
/* win: i2c_r from 00 to 80 */
	{0xd1, 0x21, 0x03, 0x80, 0x10, 0x20, 0x80, 0x10},
	{0xb1, 0x21, 0x0c, 0x20, 0x20, 0x00, 0x00, 0x10},
/* HDG: 0x11 was 0x00 change to 0x01 for better exposure (15 fps instead of 30)
	0x13 was 0xc0 change to 0xc3 for auto gain and exposure */
	{0xd1, 0x21, 0x11, 0x01, 0x48, 0xc3, 0x00, 0x10},
	{0xb1, 0x21, 0x15, 0x80, 0x03, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x17, 0x1b, 0xbd, 0x05, 0xf6, 0x10},
	{0xa1, 0x21, 0x1b, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x1f, 0x00, 0x80, 0x80, 0x80, 0x10},
	{0xd1, 0x21, 0x23, 0xde, 0x10, 0x8a, 0xa0, 0x10},
	{0xc1, 0x21, 0x27, 0xca, 0xa2, 0x74, 0x00, 0x10},
	{0xd1, 0x21, 0x2a, 0x88, 0x00, 0x88, 0x01, 0x10},
	{0xc1, 0x21, 0x2e, 0x80, 0x00, 0x18, 0x00, 0x10},
	{0xa1, 0x21, 0x21, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x22, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x32, 0xc2, 0x08, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x4c, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x60, 0x05, 0x40, 0x12, 0x57, 0x10},
	{0xa1, 0x21, 0x64, 0x73, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x65, 0x00, 0x55, 0x01, 0xac, 0x10},
	{0xa1, 0x21, 0x69, 0x38, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x6f, 0x1f, 0x01, 0x00, 0x10, 0x10},
	{0xd1, 0x21, 0x73, 0x50, 0x20, 0x02, 0x01, 0x10},
	{0xd1, 0x21, 0x77, 0xf3, 0x90, 0x98, 0x98, 0x10},
	{0xc1, 0x21, 0x7b, 0x00, 0x4c, 0xf7, 0x00, 0x10},
	{0xd1, 0x21, 0x17, 0x1b, 0xbd, 0x05, 0xf6, 0x10},
	{0xa1, 0x21, 0x1b, 0x04, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 ov7630_sensor_param1[][8] = {
	{0xa1, 0x21, 0x12, 0x48, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x12, 0x48, 0x00, 0x00, 0x00, 0x10},
/*fixme: + 0x12, 0x04*/
/*	{0xa1, 0x21, 0x75, 0x82, 0x00, 0x00, 0x00, 0x10},  * COMN
							 * set by setvflip */
	{0xa1, 0x21, 0x10, 0x32, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x01, 0x80, 0x80, 0x00, 0x00, 0x10},
/* */
/*	{0xa1, 0x21, 0x2a, 0x88, 0x00, 0x00, 0x00, 0x10}, * set by setfreq */
/*	{0xa1, 0x21, 0x2b, 0x34, 0x00, 0x00, 0x00, 0x10}, * set by setfreq */
/* */
	{0xa1, 0x21, 0x10, 0x83, 0x00, 0x00, 0x00, 0x10},
/*	{0xb1, 0x21, 0x01, 0x88, 0x70, 0x00, 0x00, 0x10}, */
	{}
};

static const u8 ov7648_sensor_init[][8] = {
	{0xa1, 0x21, 0x76, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10},	/* reset */
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 20ms */
	{0xa1, 0x21, 0x12, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x03, 0xa4, 0x30, 0x88, 0x00, 0x10},
	{0xb1, 0x21, 0x11, 0x80, 0x08, 0x00, 0x00, 0x10},
	{0xc1, 0x21, 0x13, 0xa0, 0x04, 0x84, 0x00, 0x10},
	{0xd1, 0x21, 0x17, 0x1a, 0x02, 0xba, 0xf4, 0x10},
	{0xa1, 0x21, 0x1b, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x1f, 0x41, 0xc0, 0x80, 0x80, 0x10},
	{0xd1, 0x21, 0x23, 0xde, 0xa0, 0x80, 0x32, 0x10},
	{0xd1, 0x21, 0x27, 0xfe, 0xa0, 0x00, 0x91, 0x10},
	{0xd1, 0x21, 0x2b, 0x00, 0x88, 0x85, 0x80, 0x10},
	{0xc1, 0x21, 0x2f, 0x9c, 0x00, 0xc4, 0x00, 0x10},
	{0xd1, 0x21, 0x60, 0xa6, 0x60, 0x88, 0x12, 0x10},
	{0xd1, 0x21, 0x64, 0x88, 0x00, 0x00, 0x94, 0x10},
	{0xd1, 0x21, 0x68, 0x7a, 0x0c, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x6c, 0x11, 0x33, 0x22, 0x00, 0x10},
	{0xd1, 0x21, 0x70, 0x11, 0x00, 0x10, 0x50, 0x10},
	{0xd1, 0x21, 0x74, 0x20, 0x06, 0x00, 0xb5, 0x10},
	{0xd1, 0x21, 0x78, 0x8a, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x7c, 0x00, 0x43, 0x00, 0x00, 0x10},

	{0xd1, 0x21, 0x21, 0x86, 0x00, 0xde, 0xa0, 0x10},
/*	{0xd1, 0x21, 0x25, 0x80, 0x32, 0xfe, 0xa0, 0x10}, jfm done */
/*	{0xd1, 0x21, 0x29, 0x00, 0x91, 0x00, 0x88, 0x10}, jfm done */
/*	{0xb1, 0x21, 0x2d, 0x85, 0x00, 0x00, 0x00, 0x10}, set by setfreq */
	{}
};
static const u8 ov7648_sensor_param1[][8] = {
/*	{0xa1, 0x21, 0x12, 0x08, 0x00, 0x00, 0x00, 0x10}, jfm done */
/*	{0xa1, 0x21, 0x75, 0x06, 0x00, 0x00, 0x00, 0x10},   * COMN
							 * set by setvflip */
	{0xa1, 0x21, 0x19, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x10, 0x32, 0x00, 0x00, 0x00, 0x10},
/*	{0xa1, 0x21, 0x16, 0x00, 0x00, 0x00, 0x00, 0x10}, jfm done */
/*	{0xa1, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},  * GAIN - def */
/*	{0xb1, 0x21, 0x01, 0x6c, 0x6c, 0x00, 0x00, 0x10},  * B R - def: 80 */
/*...*/
	{0xa1, 0x21, 0x11, 0x81, 0x00, 0x00, 0x00, 0x10}, /* CLKRC */
/*	{0xa1, 0x21, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x10}, jfm done */
/*	{0xa1, 0x21, 0x16, 0x00, 0x00, 0x00, 0x00, 0x10}, jfm done */
/*	{0xa1, 0x21, 0x2a, 0x91, 0x00, 0x00, 0x00, 0x10}, jfm done */
/*	{0xa1, 0x21, 0x2b, 0x00, 0x00, 0x00, 0x00, 0x10}, jfm done */
/*	{0xb1, 0x21, 0x01, 0x64, 0x84, 0x00, 0x00, 0x10},  * B R - def: 80 */

	{}
};

static const u8 ov7660_sensor_init[][8] = {
	{0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10}, /* reset SCCB */
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 20ms */
	{0xa1, 0x21, 0x12, 0x05, 0x00, 0x00, 0x00, 0x10},
						/* Outformat = rawRGB */
	{0xa1, 0x21, 0x13, 0xb8, 0x00, 0x00, 0x00, 0x10}, /* init COM8 */
	{0xd1, 0x21, 0x00, 0x01, 0x74, 0x92, 0x00, 0x10},
						/* GAIN BLUE RED VREF */
	{0xd1, 0x21, 0x04, 0x00, 0x7d, 0x62, 0x00, 0x10},
						/* COM 1 BAVE GEAVE AECHH */
	{0xb1, 0x21, 0x08, 0x83, 0x01, 0x00, 0x00, 0x10}, /* RAVE COM2 */
	{0xd1, 0x21, 0x0c, 0x00, 0x08, 0x04, 0x4f, 0x10}, /* COM 3 4 5 6 */
	{0xd1, 0x21, 0x10, 0x7f, 0x40, 0x05, 0xff, 0x10},
						/* AECH CLKRC COM7 COM8 */
	{0xc1, 0x21, 0x14, 0x2c, 0x00, 0x02, 0x00, 0x10}, /* COM9 COM10 */
	{0xd1, 0x21, 0x17, 0x10, 0x60, 0x02, 0x7b, 0x10},
						/* HSTART HSTOP VSTRT VSTOP */
	{0xa1, 0x21, 0x1b, 0x02, 0x00, 0x00, 0x00, 0x10}, /* PSHFT */
	{0xb1, 0x21, 0x1e, 0x01, 0x0e, 0x00, 0x00, 0x10}, /* MVFP LAEC */
	{0xd1, 0x21, 0x20, 0x07, 0x07, 0x07, 0x07, 0x10},
					/* BOS GBOS GROS ROS (BGGR offset) */
/*	{0xd1, 0x21, 0x24, 0x68, 0x58, 0xd4, 0x80, 0x10}, */
	{0xd1, 0x21, 0x24, 0x78, 0x68, 0xd4, 0x80, 0x10},
						/* AEW AEB VPT BBIAS */
	{0xd1, 0x21, 0x28, 0x80, 0x30, 0x00, 0x00, 0x10},
						/* GbBIAS RSVD EXHCH EXHCL */
	{0xd1, 0x21, 0x2c, 0x80, 0x00, 0x00, 0x62, 0x10},
						/* RBIAS ADVFL ASDVFH YAVE */
	{0xc1, 0x21, 0x30, 0x08, 0x30, 0xb4, 0x00, 0x10},
						/* HSYST HSYEN HREF */
	{0xd1, 0x21, 0x33, 0x00, 0x07, 0x84, 0x00, 0x10}, /* reserved */
	{0xd1, 0x21, 0x37, 0x0c, 0x02, 0x43, 0x00, 0x10},
						/* ADC ACOM OFON TSLB */
	{0xd1, 0x21, 0x3b, 0x02, 0x6c, 0x19, 0x0e, 0x10},
						/* COM11 COM12 COM13 COM14 */
	{0xd1, 0x21, 0x3f, 0x41, 0xc1, 0x22, 0x08, 0x10},
						/* EDGE COM15 COM16 COM17 */
	{0xd1, 0x21, 0x43, 0xf0, 0x10, 0x78, 0xa8, 0x10}, /* reserved */
	{0xd1, 0x21, 0x47, 0x60, 0x80, 0x00, 0x00, 0x10}, /* reserved */
	{0xd1, 0x21, 0x4b, 0x00, 0x00, 0x00, 0x00, 0x10}, /* reserved */
	{0xd1, 0x21, 0x4f, 0x46, 0x36, 0x0f, 0x17, 0x10}, /* MTX 1 2 3 4 */
	{0xd1, 0x21, 0x53, 0x7f, 0x96, 0x40, 0x40, 0x10}, /* MTX 5 6 7 8 */
	{0xb1, 0x21, 0x57, 0x40, 0x0f, 0x00, 0x00, 0x10}, /* MTX9 MTXS */
	{0xd1, 0x21, 0x59, 0xba, 0x9a, 0x22, 0xb9, 0x10}, /* reserved */
	{0xd1, 0x21, 0x5d, 0x9b, 0x10, 0xf0, 0x05, 0x10}, /* reserved */
	{0xa1, 0x21, 0x61, 0x60, 0x00, 0x00, 0x00, 0x10}, /* reserved */
	{0xd1, 0x21, 0x62, 0x00, 0x00, 0x50, 0x30, 0x10},
						/* LCC1 LCC2 LCC3 LCC4 */
	{0xa1, 0x21, 0x66, 0x00, 0x00, 0x00, 0x00, 0x10}, /* LCC5 */
	{0xd1, 0x21, 0x67, 0x80, 0x7a, 0x90, 0x80, 0x10}, /* MANU */
	{0xa1, 0x21, 0x6b, 0x0a, 0x00, 0x00, 0x00, 0x10},
					/* band gap reference [0:3] DBLV */
	{0xd1, 0x21, 0x6c, 0x30, 0x48, 0x80, 0x74, 0x10}, /* gamma curve */
	{0xd1, 0x21, 0x70, 0x64, 0x60, 0x5c, 0x58, 0x10}, /* gamma curve */
	{0xd1, 0x21, 0x74, 0x54, 0x4c, 0x40, 0x38, 0x10}, /* gamma curve */
	{0xd1, 0x21, 0x78, 0x34, 0x30, 0x2f, 0x2b, 0x10}, /* gamma curve */
	{0xd1, 0x21, 0x7c, 0x03, 0x07, 0x17, 0x34, 0x10}, /* gamma curve */
	{0xd1, 0x21, 0x80, 0x41, 0x4d, 0x58, 0x63, 0x10}, /* gamma curve */
	{0xd1, 0x21, 0x84, 0x6e, 0x77, 0x87, 0x95, 0x10}, /* gamma curve */
	{0xc1, 0x21, 0x88, 0xaf, 0xc7, 0xdf, 0x00, 0x10}, /* gamma curve */
	{0xc1, 0x21, 0x8b, 0x99, 0x99, 0xcf, 0x00, 0x10}, /* reserved */
	{0xb1, 0x21, 0x92, 0x00, 0x00, 0x00, 0x00, 0x10}, /* DM_LNL/H */
/* not in all ms-win traces*/
	{0xa1, 0x21, 0xa1, 0x00, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 ov7660_sensor_param1[][8] = {
	{0xa1, 0x21, 0x1e, 0x01, 0x00, 0x00, 0x00, 0x10}, /* MVFP */
						/* bits[3..0]reserved */
	{0xa1, 0x21, 0x1e, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10},
						/* VREF vertical frame ctrl */
	{0xa1, 0x21, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x10, 0x20, 0x00, 0x00, 0x00, 0x10}, /* AECH 0x20 */
	{0xa1, 0x21, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x10}, /* ADVFL */
	{0xa1, 0x21, 0x2e, 0x00, 0x00, 0x00, 0x00, 0x10}, /* ADVFH */
	{0xa1, 0x21, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x10}, /* GAIN */
/*	{0xb1, 0x21, 0x01, 0x78, 0x78, 0x00, 0x00, 0x10}, * BLUE */
/****** (some exchanges in the win trace) ******/
/*fixme:param2*/
	{0xa1, 0x21, 0x93, 0x00, 0x00, 0x00, 0x00, 0x10},/* dummy line hight */
	{0xa1, 0x21, 0x92, 0x25, 0x00, 0x00, 0x00, 0x10}, /* dummy line low */
	{0xa1, 0x21, 0x2a, 0x00, 0x00, 0x00, 0x00, 0x10}, /* EXHCH */
	{0xa1, 0x21, 0x2b, 0x00, 0x00, 0x00, 0x00, 0x10}, /* EXHCL */
/*	{0xa1, 0x21, 0x02, 0x90, 0x00, 0x00, 0x00, 0x10},  * RED */
/****** (some exchanges in the win trace) ******/
/******!! startsensor KO if changed !!****/
/*fixme: param3*/
	{0xa1, 0x21, 0x93, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x92, 0xff, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2b, 0xc3, 0x00, 0x00, 0x00, 0x10},
	{}
};

static const u8 po1030_sensor_init[][8] = {
/* the sensor registers are described in m5602/m5602_po1030.h */
	{0xa1, 0x6e, 0x3f, 0x20, 0x00, 0x00, 0x00, 0x10}, /* sensor reset */
	{DELAY, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 20ms */
	{0xa1, 0x6e, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x04, 0x02, 0xb1, 0x02, 0x39, 0x10},
	{0xd1, 0x6e, 0x08, 0x00, 0x01, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x0c, 0x02, 0x7f, 0x01, 0xe0, 0x10},
	{0xd1, 0x6e, 0x12, 0x03, 0x02, 0x00, 0x03, 0x10},
	{0xd1, 0x6e, 0x16, 0x85, 0x40, 0x4a, 0x40, 0x10}, /* r/g1/b/g2 gains */
	{0xc1, 0x6e, 0x1a, 0x00, 0x80, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x1d, 0x08, 0x03, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x23, 0x00, 0xb0, 0x00, 0x94, 0x10},
	{0xd1, 0x6e, 0x27, 0x58, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x6e, 0x2b, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x2d, 0x14, 0x35, 0x61, 0x84, 0x10}, /* gamma corr */
	{0xd1, 0x6e, 0x31, 0xa2, 0xbd, 0xd8, 0xff, 0x10},
	{0xd1, 0x6e, 0x35, 0x06, 0x1e, 0x12, 0x02, 0x10}, /* color matrix */
	{0xd1, 0x6e, 0x39, 0xaa, 0x53, 0x37, 0xd5, 0x10},
	{0xa1, 0x6e, 0x3d, 0xf2, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x3e, 0x00, 0x00, 0x80, 0x03, 0x10},
	{0xd1, 0x6e, 0x42, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xc1, 0x6e, 0x46, 0x00, 0x80, 0x80, 0x00, 0x10},
	{0xd1, 0x6e, 0x4b, 0x02, 0xef, 0x08, 0xcd, 0x10},
	{0xd1, 0x6e, 0x4f, 0x00, 0xd0, 0x00, 0xa0, 0x10},
	{0xd1, 0x6e, 0x53, 0x01, 0xaa, 0x01, 0x40, 0x10},
	{0xd1, 0x6e, 0x5a, 0x50, 0x04, 0x30, 0x03, 0x10}, /* raw rgb bayer */
	{0xa1, 0x6e, 0x5e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x5f, 0x10, 0x40, 0xff, 0x00, 0x10},

	{0xd1, 0x6e, 0x63, 0x40, 0x40, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x6f, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xc1, 0x6e, 0x73, 0x10, 0x80, 0xeb, 0x00, 0x10},
	{}
};
static const u8 po1030_sensor_param1[][8] = {
/* from ms-win traces - these values change with auto gain/expo/wb.. */
	{0xa1, 0x6e, 0x1e, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x1e, 0x03, 0x00, 0x00, 0x00, 0x10},
/* mean values */
	{0xc1, 0x6e, 0x1a, 0x02, 0xd4, 0xa4, 0x00, 0x10}, /* integlines */
	{0xa1, 0x6e, 0x15, 0x04, 0x00, 0x00, 0x00, 0x10}, /* global gain */
	{0xc1, 0x6e, 0x16, 0x40, 0x40, 0x40, 0x00, 0x10}, /* r/g1/b gains */

	{0xa1, 0x6e, 0x1d, 0x08, 0x00, 0x00, 0x00, 0x10}, /* control1 */
	{0xa1, 0x6e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10}, /* frameheight */
	{0xa1, 0x6e, 0x07, 0xd5, 0x00, 0x00, 0x00, 0x10},
/*	{0xc1, 0x6e, 0x16, 0x49, 0x40, 0x45, 0x00, 0x10}, */
	{}
};

static const u8 po2030n_sensor_init[][8] = {
	{0xa1, 0x6e, 0x1e, 0x1a, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x1f, 0x99, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 10ms */
	{0xa1, 0x6e, 0x1e, 0x0a, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x1f, 0x19, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 10ms */
	{0xa1, 0x6e, 0x20, 0x44, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x04, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x05, 0x70, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x07, 0x25, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x08, 0x00, 0xd0, 0x00, 0x08, 0x10},
	{0xd1, 0x6e, 0x0c, 0x03, 0x50, 0x01, 0xe8, 0x10},
	{0xd1, 0x6e, 0x1d, 0x20, 0x0a, 0x19, 0x44, 0x10},
	{0xd1, 0x6e, 0x21, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x25, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x29, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x31, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x35, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x39, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x3d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x41, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x45, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x49, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x4d, 0x00, 0x00, 0x00, 0xed, 0x10},
	{0xd1, 0x6e, 0x51, 0x17, 0x4a, 0x2f, 0xc0, 0x10},
	{0xd1, 0x6e, 0x55, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x59, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x5d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x61, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x65, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x69, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x6d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x71, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x75, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x79, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x7d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x81, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x85, 0x00, 0x00, 0x00, 0x08, 0x10},
	{0xd1, 0x6e, 0x89, 0x01, 0xe8, 0x00, 0x01, 0x10},
	{0xa1, 0x6e, 0x8d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x21, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x25, 0x00, 0x00, 0x00, 0x01, 0x10},
	{0xd1, 0x6e, 0x29, 0xe6, 0x00, 0xbd, 0x03, 0x10},
	{0xd1, 0x6e, 0x2d, 0x41, 0x38, 0x68, 0x40, 0x10},
	{0xd1, 0x6e, 0x31, 0x2b, 0x00, 0x36, 0x00, 0x10},
	{0xd1, 0x6e, 0x35, 0x30, 0x30, 0x08, 0x00, 0x10},
	{0xd1, 0x6e, 0x39, 0x00, 0x00, 0x33, 0x06, 0x10},
	{0xb1, 0x6e, 0x3d, 0x06, 0x02, 0x00, 0x00, 0x10},
	{}
};
static const u8 po2030n_sensor_param1[][8] = {
	{0xa1, 0x6e, 0x1a, 0x01, 0x00, 0x00, 0x00, 0x10},
	{DELAY, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 8ms */
	{0xa1, 0x6e, 0x1b, 0xf4, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x15, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xd1, 0x6e, 0x16, 0x40, 0x40, 0x40, 0x40, 0x10}, /* RGBG gains */
/*param2*/
	{0xa1, 0x6e, 0x1d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x04, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x05, 0x6f, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x6e, 0x07, 0x25, 0x00, 0x00, 0x00, 0x10},
	{}
};

static const u8 soi768_sensor_init[][8] = {
	{0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10}, /* reset */
	{DELAY, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 96ms */
	{0xa1, 0x21, 0x12, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x13, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x0f, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x19, 0x00, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 soi768_sensor_param1[][8] = {
	{0xa1, 0x21, 0x10, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2e, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x01, 0x7f, 0x7f, 0x00, 0x00, 0x10},
/* */
/*	{0xa1, 0x21, 0x2e, 0x00, 0x00, 0x00, 0x00, 0x10}, */
/*	{0xa1, 0x21, 0x2d, 0x25, 0x00, 0x00, 0x00, 0x10}, */
	{0xa1, 0x21, 0x2b, 0x00, 0x00, 0x00, 0x00, 0x10},
/*	{0xb1, 0x21, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x10}, */
	{0xa1, 0x21, 0x02, 0x8d, 0x00, 0x00, 0x00, 0x10},
/* the next sequence should be used for auto gain */
	{0xa1, 0x21, 0x00, 0x07, 0x00, 0x00, 0x00, 0x10},
			/* global gain ? : 07 - change with 0x15 at the end */
	{0xa1, 0x21, 0x10, 0x3f, 0x00, 0x00, 0x00, 0x10}, /* ???? : 063f */
	{0xa1, 0x21, 0x04, 0x06, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x2d, 0x63, 0x03, 0x00, 0x00, 0x10},
			/* exposure ? : 0200 - change with 0x1e at the end */
	{}
};

static const u8 sp80708_sensor_init[][8] = {
	{0xa1, 0x18, 0x06, 0xf9, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x09, 0x1f, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x0d, 0xc0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x0f, 0x0f, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x10, 0x40, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x11, 0x4e, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x12, 0x53, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x15, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x19, 0x18, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x1a, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x1b, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x1c, 0x28, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x1d, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x1e, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x26, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x27, 0x1e, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x28, 0x5a, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x29, 0x28, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x2a, 0x78, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x2b, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x2c, 0xf7, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x2d, 0x2d, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x2e, 0xd5, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x39, 0x42, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x3a, 0x67, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x3b, 0x87, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x3c, 0xa3, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x3d, 0xb0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x3e, 0xbc, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x3f, 0xc8, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x40, 0xd4, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x41, 0xdf, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x42, 0xea, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x43, 0xf5, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x45, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x46, 0x60, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x47, 0x50, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x48, 0x30, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x49, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x4d, 0xae, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x4e, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x4f, 0x66, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x50, 0x1c, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x44, 0x10, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x4a, 0x30, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x51, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x52, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x53, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x54, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x55, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x56, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x57, 0xe0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x58, 0xc0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x59, 0xab, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x5a, 0xa0, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x5b, 0x99, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x5c, 0x90, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x5e, 0x24, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x60, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x61, 0x73, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x63, 0x42, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x64, 0x42, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x65, 0x42, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x66, 0x24, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x67, 0x24, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x68, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x2f, 0xc9, 0x00, 0x00, 0x00, 0x10},
	{}
};
static const u8 sp80708_sensor_param1[][8] = {
	{0xa1, 0x18, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x03, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x04, 0xa4, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x14, 0x3f, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x18, 0x5d, 0x80, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x18, 0x11, 0x40, 0x40, 0x00, 0x00, 0x10},
	{}
};

static const u8 (*sensor_init[])[8] = {
[SENSOR_ADCM1700] =	adcm1700_sensor_init,
[SENSOR_GC0307] =	gc0307_sensor_init,
[SENSOR_HV7131R] =	hv7131r_sensor_init,
[SENSOR_MI0360] =	mi0360_sensor_init,
[SENSOR_MI0360B] =	mi0360b_sensor_init,
[SENSOR_MO4000] =	mo4000_sensor_init,
[SENSOR_MT9V111] =	mt9v111_sensor_init,
[SENSOR_OM6802] =	om6802_sensor_init,
[SENSOR_OV7630] =	ov7630_sensor_init,
[SENSOR_OV7648] =	ov7648_sensor_init,
[SENSOR_OV7660] =	ov7660_sensor_init,
[SENSOR_PO1030] =	po1030_sensor_init,
[SENSOR_PO2030N] =	po2030n_sensor_init,
[SENSOR_SOI768] =	soi768_sensor_init,
[SENSOR_SP80708] =	sp80708_sensor_init,
};

/* read <len> bytes to gspca_dev->usb_buf */
static void reg_r(struct gspca_dev *gspca_dev,
		  u16 value, int len)
{
	int ret;

	if (gspca_dev->usb_err < 0)
		return;
	if (len > USB_BUF_SZ) {
		gspca_err(gspca_dev, "reg_r: buffer overflow\n");
		return;
	}

	ret = usb_control_msg(gspca_dev->dev,
			usb_rcvctrlpipe(gspca_dev->dev, 0),
			0,
			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			value, 0,
			gspca_dev->usb_buf, len,
			500);
	gspca_dbg(gspca_dev, D_USBI, "reg_r [%02x] -> %02x\n",
		  value, gspca_dev->usb_buf[0]);
	if (ret < 0) {
		pr_err("reg_r err %d\n", ret);
		gspca_dev->usb_err = ret;
	}
}

static void reg_w1(struct gspca_dev *gspca_dev,
		   u16 value,
		   u8 data)
{
	int ret;

	if (gspca_dev->usb_err < 0)
		return;
	gspca_dbg(gspca_dev, D_USBO, "reg_w1 [%04x] = %02x\n", value, data);
	gspca_dev->usb_buf[0] = data;
	ret = usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			0x08,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			value,
			0,
			gspca_dev->usb_buf, 1,
			500);
	if (ret < 0) {
		pr_err("reg_w1 err %d\n", ret);
		gspca_dev->usb_err = ret;
	}
}
static void reg_w(struct gspca_dev *gspca_dev,
			  u16 value,
			  const u8 *buffer,
			  int len)
{
	int ret;

	if (gspca_dev->usb_err < 0)
		return;
	gspca_dbg(gspca_dev, D_USBO, "reg_w [%04x] = %02x %02x ..\n",
		  value, buffer[0], buffer[1]);

	if (len > USB_BUF_SZ) {
		gspca_err(gspca_dev, "reg_w: buffer overflow\n");
		return;
	}

	memcpy(gspca_dev->usb_buf, buffer, len);
	ret = usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			0x08,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			value, 0,
			gspca_dev->usb_buf, len,
			500);
	if (ret < 0) {
		pr_err("reg_w err %d\n", ret);
		gspca_dev->usb_err = ret;
	}
}

/* I2C write 1 byte */
static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int ret;

	if (gspca_dev->usb_err < 0)
		return;
	gspca_dbg(gspca_dev, D_USBO, "i2c_w1 [%02x] = %02x\n", reg, val);
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
	case SENSOR_OM6802:
	case SENSOR_GC0307:		/* i2c command = a0 (100 kHz) */
		gspca_dev->usb_buf[0] = 0x80 | (2 << 4);
		break;
	default:			/* i2c command = a1 (400 kHz) */
		gspca_dev->usb_buf[0] = 0x81 | (2 << 4);
		break;
	}
	gspca_dev->usb_buf[1] = sd->i2c_addr;
	gspca_dev->usb_buf[2] = reg;
	gspca_dev->usb_buf[3] = val;
	gspca_dev->usb_buf[4] = 0;
	gspca_dev->usb_buf[5] = 0;
	gspca_dev->usb_buf[6] = 0;
	gspca_dev->usb_buf[7] = 0x10;
	ret = usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			0x08,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			0x08,			/* value = i2c */
			0,
			gspca_dev->usb_buf, 8,
			500);
	msleep(2);
	if (ret < 0) {
		pr_err("i2c_w1 err %d\n", ret);
		gspca_dev->usb_err = ret;
	}
}

/* I2C write 8 bytes */
static void i2c_w8(struct gspca_dev *gspca_dev,
		   const u8 *buffer)
{
	int ret;

	if (gspca_dev->usb_err < 0)
		return;
	gspca_dbg(gspca_dev, D_USBO, "i2c_w8 [%02x] = %02x ..\n",
		  buffer[2], buffer[3]);
	memcpy(gspca_dev->usb_buf, buffer, 8);
	ret = usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			0x08,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			0x08, 0,		/* value, index */
			gspca_dev->usb_buf, 8,
			500);
	msleep(2);
	if (ret < 0) {
		pr_err("i2c_w8 err %d\n", ret);
		gspca_dev->usb_err = ret;
	}
}

/* sensor read 'len' (1..5) bytes in gspca_dev->usb_buf */
static void i2c_r(struct gspca_dev *gspca_dev, u8 reg, int len)
{
	struct sd *sd = (struct sd *) gspca_dev;
	u8 mode[8];

	switch (sd->sensor) {
	case SENSOR_ADCM1700:
	case SENSOR_OM6802:
	case SENSOR_GC0307:		/* i2c command = a0 (100 kHz) */
		mode[0] = 0x80 | 0x10;
		break;
	default:			/* i2c command = 91 (400 kHz) */
		mode[0] = 0x81 | 0x10;
		break;
	}
	mode[1] = sd->i2c_addr;
	mode[2] = reg;
	mode[3] = 0;
	mode[4] = 0;
	mode[5] = 0;
	mode[6] = 0;
	mode[7] = 0x10;
	i2c_w8(gspca_dev, mode);
	msleep(2);
	mode[0] = (mode[0] & 0x81) | (len << 4) | 0x02;
	mode[2] = 0;
	i2c_w8(gspca_dev, mode);
	msleep(2);
	reg_r(gspca_dev, 0x0a, 5);
}

static void i2c_w_seq(struct gspca_dev *gspca_dev,
			const u8 (*data)[8])
{
	while ((*data)[0] != 0) {
		if ((*data)[0] != DELAY)
			i2c_w8(gspca_dev, *data);
		else
			msleep((*data)[1]);
		data++;
	}
}

/* check the ID of the hv7131 sensor */
/* this sequence is needed because it activates the sensor */
static void hv7131r_probe(struct gspca_dev *gspca_dev)
{
	i2c_w1(gspca_dev, 0x02, 0);		/* sensor wakeup */
	msleep(10);
	reg_w1(gspca_dev, 0x02, 0x66);		/* Gpio on */
	msleep(10);
	i2c_r(gspca_dev, 0, 5);			/* read sensor id */
	if (gspca_dev->usb_buf[0] == 0x02	/* chip ID (02 is R) */
	    && gspca_dev->usb_buf[1] == 0x09
	    && gspca_dev->usb_buf[2] == 0x01) {
		gspca_dbg(gspca_dev, D_PROBE, "Sensor HV7131R found\n");
		return;
	}
	pr_warn("Erroneous HV7131R ID 0x%02x 0x%02x 0x%02x\n",
		gspca_dev->usb_buf[0], gspca_dev->usb_buf[1],
		gspca_dev->usb_buf[2]);
}

static void mi0360_probe(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int i, j;
	u16 val = 0;
	static const u8 probe_tb[][4][8] = {
	    {					/* mi0360 */
		{0xb0, 0x5d, 0x07, 0x00, 0x02, 0x00, 0x00, 0x10},
		{0x90, 0x5d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},
		{0xa2, 0x5d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},
		{0xb0, 0x5d, 0x07, 0x00, 0x00, 0x00, 0x00, 0x10}
	    },
	    {					/* mt9v111 */
		{0xb0, 0x5c, 0x01, 0x00, 0x04, 0x00, 0x00, 0x10},
		{0x90, 0x5c, 0x36, 0x00, 0x00, 0x00, 0x00, 0x10},
		{0xa2, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10},
		{}
	    },
	};

	for (i = 0; i < ARRAY_SIZE(probe_tb); i++) {
		reg_w1(gspca_dev, 0x17, 0x62);
		reg_w1(gspca_dev, 0x01, 0x08);
		for (j = 0; j < 3; j++)
			i2c_w8(gspca_dev, probe_tb[i][j]);
		msleep(2);
		reg_r(gspca_dev, 0x0a, 5);
		val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
		if (probe_tb[i][3][0] != 0)
			i2c_w8(gspca_dev, probe_tb[i][3]);
		reg_w1(gspca_dev, 0x01, 0x29);
		reg_w1(gspca_dev, 0x17, 0x42);
		if (val != 0xffff)
			break;
	}
	if (gspca_dev->usb_err < 0)
		return;
	switch (val) {
	case 0x8221:
		gspca_dbg(gspca_dev, D_PROBE, "Sensor mi0360b\n");
		sd->sensor = SENSOR_MI0360B;
		break;
	case 0x823a:
		gspca_dbg(gspca_dev, D_PROBE, "Sensor mt9v111\n");
		sd->sensor = SENSOR_MT9V111;
		break;
	case 0x8243:
		gspca_dbg(gspca_dev, D_PROBE, "Sensor mi0360\n");
		break;
	default:
		gspca_dbg(gspca_dev, D_PROBE, "Unknown sensor %04x - forced to mi0360\n",
			  val);
		break;
	}
}

static void ov7630_probe(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	u16 val;

	/* check ov76xx */
	reg_w1(gspca_dev, 0x17, 0x62);
	reg_w1(gspca_dev, 0x01, 0x08);
	sd->i2c_addr = 0x21;
	i2c_r(gspca_dev, 0x0a, 2);
	val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
	reg_w1(gspca_dev, 0x01, 0x29);
	reg_w1(gspca_dev, 0x17, 0x42);
	if (gspca_dev->usb_err < 0)
		return;
	if (val == 0x7628) {			/* soi768 */
		sd->sensor = SENSOR_SOI768;
/*fixme: only valid for 0c45:613e?*/
		gspca_dev->cam.input_flags =
				V4L2_IN_ST_VFLIP | V4L2_IN_ST_HFLIP;
		gspca_dbg(gspca_dev, D_PROBE, "Sensor soi768\n");
		return;
	}
	gspca_dbg(gspca_dev, D_PROBE, "Sensor ov%04x\n", val);
}

static void ov7648_probe(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	u16 val;

	/* check ov76xx */
	reg_w1(gspca_dev, 0x17, 0x62);
	reg_w1(gspca_dev, 0x01, 0x08);
	sd->i2c_addr = 0x21;
	i2c_r(gspca_dev, 0x0a, 2);
	val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
	reg_w1(gspca_dev, 0x01, 0x29);
	reg_w1(gspca_dev, 0x17, 0x42);
	if ((val & 0xff00) == 0x7600) {		/* ov76xx */
		gspca_dbg(gspca_dev, D_PROBE, "Sensor ov%04x\n", val);
		return;
	}

	/* check po1030 */
	reg_w1(gspca_dev, 0x17, 0x62);
	reg_w1(gspca_dev, 0x01, 0x08);
	sd->i2c_addr = 0x6e;
	i2c_r(gspca_dev, 0x00, 2);
	val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
	reg_w1(gspca_dev, 0x01, 0x29);
	reg_w1(gspca_dev, 0x17, 0x42);
	if (gspca_dev->usb_err < 0)
		return;
	if (val == 0x1030) {			/* po1030 */
		gspca_dbg(gspca_dev, D_PROBE, "Sensor po1030\n");
		sd->sensor = SENSOR_PO1030;
		return;
	}
	pr_err("Unknown sensor %04x\n", val);
}

/* 0c45:6142 sensor may be po2030n, gc0305 or gc0307 */
static void po2030n_probe(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	u16 val;

	/* check gc0307 */
	reg_w1(gspca_dev, 0x17, 0x62);
	reg_w1(gspca_dev, 0x01, 0x08);
	reg_w1(gspca_dev, 0x02, 0x22);
	sd->i2c_addr = 0x21;
	i2c_r(gspca_dev, 0x00, 1);
	val = gspca_dev->usb_buf[4];
	reg_w1(gspca_dev, 0x01, 0x29);		/* reset */
	reg_w1(gspca_dev, 0x17, 0x42);
	if (val == 0x99) {			/* gc0307 (?) */
		gspca_dbg(gspca_dev, D_PROBE, "Sensor gc0307\n");
		sd->sensor = SENSOR_GC0307;
		return;
	}

	/* check po2030n */
	reg_w1(gspca_dev, 0x17, 0x62);
	reg_w1(gspca_dev, 0x01, 0x0a);
	sd->i2c_addr = 0x6e;
	i2c_r(gspca_dev, 0x00, 2);
	val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
	reg_w1(gspca_dev, 0x01, 0x29);
	reg_w1(gspca_dev, 0x17, 0x42);
	if (gspca_dev->usb_err < 0)
		return;
	if (val == 0x2030) {
		gspca_dbg(gspca_dev, D_PROBE, "Sensor po2030n\n");
/*		sd->sensor = SENSOR_PO2030N; */
	} else {
		pr_err("Unknown sensor ID %04x\n", val);
	}
}

/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
			const struct usb_device_id *id)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct cam *cam;

	sd->bridge = id->driver_info >> 16;
	sd->sensor = id->driver_info >> 8;
	sd->flags = id->driver_info;

	cam = &gspca_dev->cam;
	if (sd->sensor == SENSOR_ADCM1700) {
		cam->cam_mode = cif_mode;
		cam->nmodes = ARRAY_SIZE(cif_mode);
	} else {
		cam->cam_mode = vga_mode;
		cam->nmodes = ARRAY_SIZE(vga_mode);
	}
	cam->npkt = 24;			/* 24 packets per ISOC message */

	sd->ag_cnt = -1;
	sd->quality = QUALITY_DEF;

	INIT_WORK(&sd->work, qual_upd);

	return 0;
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	const u8 *sn9c1xx;
	u8 regGpio[] = { 0x29, 0x70 };		/* no audio */
	u8 regF1;

	/* setup a selector by bridge */
	reg_w1(gspca_dev, 0xf1, 0x01);
	reg_r(gspca_dev, 0x00, 1);
	reg_w1(gspca_dev, 0xf1, 0x00);
	reg_r(gspca_dev, 0x00, 1);		/* get sonix chip id */
	regF1 = gspca_dev->usb_buf[0];
	if (gspca_dev->usb_err < 0)
		return gspca_dev->usb_err;
	gspca_dbg(gspca_dev, D_PROBE, "Sonix chip id: %02x\n", regF1);
	if (gspca_dev->audio)
		regGpio[1] |= 0x04;		/* with audio */
	switch (sd->bridge) {
	case BRIDGE_SN9C102P:
	case BRIDGE_SN9C105:
		if (regF1 != 0x11)
			return -ENODEV;
		break;
	default:
/*	case BRIDGE_SN9C110: */
/*	case BRIDGE_SN9C120: */
		if (regF1 != 0x12)
			return -ENODEV;
	}

	switch (sd->sensor) {
	case SENSOR_MI0360:
		mi0360_probe(gspca_dev);
		break;
	case SENSOR_OV7630:
		ov7630_probe(gspca_dev);
		break;
	case SENSOR_OV7648:
		ov7648_probe(gspca_dev);
		break;
	case SENSOR_PO2030N:
		po2030n_probe(gspca_dev);
		break;
	}

	switch (sd->bridge) {
	case BRIDGE_SN9C102P:
		reg_w1(gspca_dev, 0x02, regGpio[1]);
		break;
	default:
		reg_w(gspca_dev, 0x01, regGpio, 2);
		break;
	}

	/* Note we do not disable the sensor clock here (power saving mode),
	   as that also disables the button on the cam. */
	reg_w1(gspca_dev, 0xf1, 0x00);

	/* set the i2c address */
	sn9c1xx = sn_tb[sd->sensor];
	sd->i2c_addr = sn9c1xx[9];

	return gspca_dev->usb_err;
}

static int sd_s_ctrl(struct v4l2_ctrl *ctrl);

static const struct v4l2_ctrl_ops sd_ctrl_ops = {
	.s_ctrl = sd_s_ctrl,
};

/* this function is called at probe time */
static int sd_init_controls(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;

	gspca_dev->vdev.ctrl_handler = hdl;
	v4l2_ctrl_handler_init(hdl, 14);

	sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
#define CONTRAST_MAX 127
	sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_CONTRAST, 0, CONTRAST_MAX, 1, 20);
#define COLORS_DEF 25
	sd->saturation = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_SATURATION, 0, 40, 1, COLORS_DEF);
	sd->red_bal = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_RED_BALANCE, 24, 40, 1, 32);
	sd->blue_bal = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_BLUE_BALANCE, 24, 40, 1, 32);
#define GAMMA_DEF 20
	sd->gamma = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_GAMMA, 0, 40, 1, GAMMA_DEF);

	if (sd->sensor == SENSOR_OM6802)
		sd->sharpness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_SHARPNESS, 0, 255, 1, 16);
	else
		sd->sharpness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_SHARPNESS, 0, 255, 1, 90);

	if (sd->flags & F_ILLUM)
		sd->illum = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0);

	if (sd->sensor == SENSOR_PO2030N) {
		gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_EXPOSURE, 500, 1500, 1, 1024);
		gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_GAIN, 4, 49, 1, 15);
		sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_HFLIP, 0, 1, 1, 0);
	}

	if (sd->sensor != SENSOR_ADCM1700 && sd->sensor != SENSOR_OV7660 &&
	    sd->sensor != SENSOR_PO1030 && sd->sensor != SENSOR_SOI768 &&
	    sd->sensor != SENSOR_SP80708)
		gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_AUTOGAIN, 0, 1, 1, 1);

	if (sd->sensor == SENSOR_HV7131R || sd->sensor == SENSOR_OV7630 ||
	    sd->sensor == SENSOR_OV7648 || sd->sensor == SENSOR_PO2030N)
		sd->vflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_VFLIP, 0, 1, 1, 0);

	if (sd->sensor == SENSOR_OV7630 || sd->sensor == SENSOR_OV7648 ||
	    sd->sensor == SENSOR_OV7660)
		sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
			V4L2_CID_POWER_LINE_FREQUENCY,
			V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0,
			V4L2_CID_POWER_LINE_FREQUENCY_50HZ);

	if (hdl->error) {
		pr_err("Could not initialize controls\n");
		return hdl->error;
	}

	v4l2_ctrl_cluster(2, &sd->red_bal);
	if (sd->sensor == SENSOR_PO2030N) {
		v4l2_ctrl_cluster(2, &sd->vflip);
		v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false);
	}

	return 0;
}

static u32 expo_adjust(struct gspca_dev *gspca_dev,
			u32 expo)
{
	struct sd *sd = (struct sd *) gspca_dev;

	switch (sd->sensor) {
	case SENSOR_GC0307: {
		int a, b;

		/* expo = 0..255 -> a = 19..43 */
		a = 19 + expo * 25 / 256;
		i2c_w1(gspca_dev, 0x68, a);
		a -= 12;
		b = a * a * 4;			/* heuristic */
		i2c_w1(gspca_dev, 0x03, b >> 8);
		i2c_w1(gspca_dev, 0x04, b);
		break;
	    }
	case SENSOR_HV7131R: {
		u8 Expodoit[] =
			{ 0xc1, 0x11, 0x25, 0x00, 0x00, 0x00, 0x00, 0x16 };

		Expodoit[3] = expo >> 16;
		Expodoit[4] = expo >> 8;
		Expodoit[5] = expo;
		i2c_w8(gspca_dev, Expodoit);
		break;
	    }
	case SENSOR_MI0360:
	case SENSOR_MI0360B: {
		u8 expoMi[] =		/* exposure 0x0635 -> 4 fp/s 0x10 */
			{ 0xb1, 0x5d, 0x09, 0x00, 0x00, 0x00, 0x00, 0x16 };
		static const u8 doit[] =		/* update sensor */
			{ 0xb1, 0x5d, 0x07, 0x00, 0x03, 0x00, 0x00, 0x10 };
		static const u8 sensorgo[] =		/* sensor on */
			{ 0xb1, 0x5d, 0x07, 0x00, 0x02, 0x00, 0x00, 0x10 };

		if (expo > 0x0635)
			expo = 0x0635;
		else if (expo < 0x0001)
			expo = 0x0001;
		expoMi[3] = expo >> 8;
		expoMi[4] = expo;
		i2c_w8(gspca_dev, expoMi);
		i2c_w8(gspca_dev, doit);
		i2c_w8(gspca_dev, sensorgo);
		break;
	    }
	case SENSOR_MO4000: {
		u8 expoMof[] =
			{ 0xa1, 0x21, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x10 };
		u8 expoMo10[] =
			{ 0xa1, 0x21, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10 };
		static const u8 gainMo[] =
			{ 0xa1, 0x21, 0x00, 0x10, 0x00, 0x00, 0x00, 0x1d };

		if (expo > 0x1fff)
			expo = 0x1fff;
		else if (expo < 0x0001)
			expo = 0x0001;
		expoMof[3] = (expo & 0x03fc) >> 2;
		i2c_w8(gspca_dev, expoMof);
		expoMo10[3] = ((expo & 0x1c00) >> 10)
				| ((expo & 0x0003) << 4);
		i2c_w8(gspca_dev, expoMo10);
		i2c_w8(gspca_dev, gainMo);
		gspca_dbg(gspca_dev, D_FRAM, "set exposure %d\n",
			  ((expoMo10[3] & 0x07) << 10)
			  | (expoMof[3] << 2)
			  | ((expoMo10[3] & 0x30) >> 4));
		break;
	    }
	case SENSOR_MT9V111: {
		u8 expo_c1[] =
			{ 0xb1, 0x5c, 0x09, 0x00, 0x00, 0x00, 0x00, 0x10 };

		if (expo > 0x0390)
			expo = 0x0390;
		else if (expo < 0x0060)
			expo = 0x0060;
		expo_c1[3] = expo >> 8;
		expo_c1[4] = expo;
		i2c_w8(gspca_dev, expo_c1);
		break;
	    }
	case SENSOR_OM6802: {
		u8 gainOm[] =
			{ 0xa0, 0x34, 0xe5, 0x00, 0x00, 0x00, 0x00, 0x10 };
				/* preset AGC - works when AutoExpo = off */

		if (expo > 0x03ff)
			expo = 0x03ff;
		if (expo < 0x0001)
			expo = 0x0001;
		gainOm[3] = expo >> 2;
		i2c_w8(gspca_dev, gainOm);
		reg_w1(gspca_dev, 0x96, expo >> 5);
		gspca_dbg(gspca_dev, D_FRAM, "set exposure %d\n", gainOm[3]);
		break;
	    }
	}
	return expo;
}

static void setbrightness(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	unsigned int expo;
	int brightness = sd->brightness->val;
	u8 k2;

	k2 = (brightness - 0x80) >> 2;
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
		if (k2 > 0x1f)
			k2 = 0;		/* only positive Y offset */
		break;
	case SENSOR_HV7131R:
		expo = brightness << 12;
		if (expo > 0x002dc6c0)
			expo = 0x002dc6c0;
		else if (expo < 0x02a0)
			expo = 0x02a0;
		sd->exposure = expo_adjust(gspca_dev, expo);
		break;
	case SENSOR_MI0360:
	case SENSOR_MO4000:
		expo = brightness << 4;
		sd->exposure = expo_adjust(gspca_dev, expo);
		break;
	case SENSOR_MI0360B:
		expo = brightness << 2;
		sd->exposure = expo_adjust(gspca_dev, expo);
		break;
	case SENSOR_GC0307:
		expo = brightness;
		sd->exposure = expo_adjust(gspca_dev, expo);
		return;			/* don't set the Y offset */
	case SENSOR_MT9V111:
		expo = brightness << 2;
		sd->exposure = expo_adjust(gspca_dev, expo);
		return;			/* don't set the Y offset */
	case SENSOR_OM6802:
		expo = brightness << 2;
		sd->exposure = expo_adjust(gspca_dev, expo);
		return;			/* Y offset already set */
	}

	reg_w1(gspca_dev, 0x96, k2);	/* color matrix Y offset */
}

static void setcontrast(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	u8 k2;
	u8 contrast[6];

	k2 = sd->contrast->val * 37 / (CONTRAST_MAX + 1)
				+ 37;		/* 37..73 */
	contrast[0] = (k2 + 1) / 2;		/* red */
	contrast[1] = 0;
	contrast[2] = k2;			/* green */
	contrast[3] = 0;
	contrast[4] = k2 / 5;			/* blue */
	contrast[5] = 0;
	reg_w(gspca_dev, 0x84, contrast, sizeof contrast);
}

static void setcolors(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int i, v, colors;
	const s16 *uv;
	u8 reg8a[12];			/* U & V gains */
	static const s16 uv_com[6] = {	/* same as reg84 in signed decimal */
		-24, -38, 64,		/* UR UG UB */
		 62, -51, -9		/* VR VG VB */
	};
	static const s16 uv_mi0360b[6] = {
		-20, -38, 64,		/* UR UG UB */
		 60, -51, -9		/* VR VG VB */
	};

	colors = sd->saturation->val;
	if (sd->sensor == SENSOR_MI0360B)
		uv = uv_mi0360b;
	else
		uv = uv_com;
	for (i = 0; i < 6; i++) {
		v = uv[i] * colors / COLORS_DEF;
		reg8a[i * 2] = v;
		reg8a[i * 2 + 1] = (v >> 8) & 0x0f;
	}
	reg_w(gspca_dev, 0x8a, reg8a, sizeof reg8a);
}

static void setredblue(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	if (sd->sensor == SENSOR_PO2030N) {
		u8 rg1b[] =		/* red  green1 blue (no g2) */
			{0xc1, 0x6e, 0x16, 0x00, 0x40, 0x00, 0x00, 0x10};

		/* 0x40 = normal value = gain x 1 */
		rg1b[3] = sd->red_bal->val * 2;
		rg1b[5] = sd->blue_bal->val * 2;
		i2c_w8(gspca_dev, rg1b);
		return;
	}
	reg_w1(gspca_dev, 0x05, sd->red_bal->val);
/*	reg_w1(gspca_dev, 0x07, 32); */
	reg_w1(gspca_dev, 0x06, sd->blue_bal->val);
}

static void setgamma(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int i, val;
	u8 gamma[17];
	const u8 *gamma_base;
	static const u8 delta[17] = {
		0x00, 0x14, 0x1c, 0x1c, 0x1c, 0x1c, 0x1b, 0x1a,
		0x18, 0x13, 0x10, 0x0e, 0x08, 0x07, 0x04, 0x02, 0x00
	};

	switch (sd->sensor) {
	case SENSOR_ADCM1700:
		gamma_base = gamma_spec_0;
		break;
	case SENSOR_HV7131R:
	case SENSOR_MI0360B:
	case SENSOR_MT9V111:
		gamma_base = gamma_spec_1;
		break;
	case SENSOR_GC0307:
		gamma_base = gamma_spec_2;
		break;
	case SENSOR_SP80708:
		gamma_base = gamma_spec_3;
		break;
	default:
		gamma_base = gamma_def;
		break;
	}

	val = sd->gamma->val;
	for (i = 0; i < sizeof gamma; i++)
		gamma[i] = gamma_base[i]
			+ delta[i] * (val - GAMMA_DEF) / 32;
	reg_w(gspca_dev, 0x20, gamma, sizeof gamma);
}

static void setexposure(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	if (sd->sensor == SENSOR_PO2030N) {
		u8 rexpo[] =		/* 1a: expo H, 1b: expo M */
			{0xa1, 0x6e, 0x1a, 0x00, 0x40, 0x00, 0x00, 0x10};

		rexpo[3] = gspca_dev->exposure->val >> 8;
		i2c_w8(gspca_dev, rexpo);
		msleep(6);
		rexpo[2] = 0x1b;
		rexpo[3] = gspca_dev->exposure->val;
		i2c_w8(gspca_dev, rexpo);
	}
}

static void setautogain(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	switch (sd->sensor) {
	case SENSOR_OV7630:
	case SENSOR_OV7648: {
		u8 comb;

		if (sd->sensor == SENSOR_OV7630)
			comb = 0xc0;
		else
			comb = 0xa0;
		if (gspca_dev->autogain->val)
			comb |= 0x03;
		i2c_w1(&sd->gspca_dev, 0x13, comb);
		return;
	    }
	}
	if (gspca_dev->autogain->val)
		sd->ag_cnt = AG_CNT_START;
	else
		sd->ag_cnt = -1;
}

static void setgain(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	if (sd->sensor == SENSOR_PO2030N) {
		u8 rgain[] =		/* 15: gain */
			{0xa1, 0x6e, 0x15, 0x00, 0x40, 0x00, 0x00, 0x15};

		rgain[3] = gspca_dev->gain->val;
		i2c_w8(gspca_dev, rgain);
	}
}

static void sethvflip(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	u8 comn;

	switch (sd->sensor) {
	case SENSOR_HV7131R:
		comn = 0x18;			/* clkdiv = 1, ablcen = 1 */
		if (sd->vflip->val)
			comn |= 0x01;
		i2c_w1(gspca_dev, 0x01, comn);	/* sctra */
		break;
	case SENSOR_OV7630:
		comn = 0x02;
		if (!sd->vflip->val)
			comn |= 0x80;
		i2c_w1(gspca_dev, 0x75, comn);
		break;
	case SENSOR_OV7648:
		comn = 0x06;
		if (sd->vflip->val)
			comn |= 0x80;
		i2c_w1(gspca_dev, 0x75, comn);
		break;
	case SENSOR_PO2030N:
		/* Reg. 0x1E: Timing Generator Control Register 2 (Tgcontrol2)
		 * (reset value: 0x0A)
		 * bit7: HM: Horizontal Mirror: 0: disable, 1: enable
		 * bit6: VM: Vertical Mirror: 0: disable, 1: enable
		 * bit5: ST: Shutter Selection: 0: electrical, 1: mechanical
		 * bit4: FT: Single Frame Transfer: 0: disable, 1: enable
		 * bit3-0: X
		 */
		comn = 0x0a;
		if (sd->hflip->val)
			comn |= 0x80;
		if (sd->vflip->val)
			comn |= 0x40;
		i2c_w1(&sd->gspca_dev, 0x1e, comn);
		break;
	}
}

static void setsharpness(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	reg_w1(gspca_dev, 0x99, sd->sharpness->val);
}

static void setillum(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	switch (sd->sensor) {
	case SENSOR_ADCM1700:
		reg_w1(gspca_dev, 0x02,				/* gpio */
			sd->illum->val ? 0x64 : 0x60);
		break;
	case SENSOR_MT9V111:
		reg_w1(gspca_dev, 0x02,
			sd->illum->val ? 0x77 : 0x74);
/* should have been: */
/*						0x55 : 0x54);	* 370i */
/*						0x66 : 0x64);	* Clip */
		break;
	}
}

static void setfreq(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	if (sd->sensor == SENSOR_OV7660) {
		u8 com8;

		com8 = 0xdf;		/* auto gain/wb/expo */
		switch (sd->freq->val) {
		case 0: /* Banding filter disabled */
			i2c_w1(gspca_dev, 0x13, com8 | 0x20);
			break;
		case 1: /* 50 hz */
			i2c_w1(gspca_dev, 0x13, com8);
			i2c_w1(gspca_dev, 0x3b, 0x0a);
			break;
		case 2: /* 60 hz */
			i2c_w1(gspca_dev, 0x13, com8);
			i2c_w1(gspca_dev, 0x3b, 0x02);
			break;
		}
	} else {
		u8 reg2a = 0, reg2b = 0, reg2d = 0;

		/* Get reg2a / reg2d base values */
		switch (sd->sensor) {
		case SENSOR_OV7630:
			reg2a = 0x08;
			reg2d = 0x01;
			break;
		case SENSOR_OV7648:
			reg2a = 0x11;
			reg2d = 0x81;
			break;
		}

		switch (sd->freq->val) {
		case 0: /* Banding filter disabled */
			break;
		case 1: /* 50 hz (filter on and framerate adj) */
			reg2a |= 0x80;
			reg2b = 0xac;
			reg2d |= 0x04;
			break;
		case 2: /* 60 hz (filter on, no framerate adj) */
			reg2a |= 0x80;
			reg2d |= 0x04;
			break;
		}
		i2c_w1(gspca_dev, 0x2a, reg2a);
		i2c_w1(gspca_dev, 0x2b, reg2b);
		i2c_w1(gspca_dev, 0x2d, reg2d);
	}
}

static void setjpegqual(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	jpeg_set_qual(sd->jpeg_hdr, sd->quality);
#if USB_BUF_SZ < 64
#error "No room enough in usb_buf for quantization table"
#endif
	memcpy(gspca_dev->usb_buf, &sd->jpeg_hdr[JPEG_QT0_OFFSET], 64);
	usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			0x08,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			0x0100, 0,
			gspca_dev->usb_buf, 64,
			500);
	memcpy(gspca_dev->usb_buf, &sd->jpeg_hdr[JPEG_QT1_OFFSET], 64);
	usb_control_msg(gspca_dev->dev,
			usb_sndctrlpipe(gspca_dev->dev, 0),
			0x08,
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
			0x0140, 0,
			gspca_dev->usb_buf, 64,
			500);

	sd->reg18 ^= 0x40;
	reg_w1(gspca_dev, 0x18, sd->reg18);
}

/* JPEG quality update */
/* This function is executed from a work queue. */
static void qual_upd(struct work_struct *work)
{
	struct sd *sd = container_of(work, struct sd, work);
	struct gspca_dev *gspca_dev = &sd->gspca_dev;

	/* To protect gspca_dev->usb_buf and gspca_dev->usb_err */
	mutex_lock(&gspca_dev->usb_lock);
	gspca_dbg(gspca_dev, D_STREAM, "qual_upd %d%%\n", sd->quality);
	gspca_dev->usb_err = 0;
	setjpegqual(gspca_dev);
	mutex_unlock(&gspca_dev->usb_lock);
}

/* -- start the camera -- */
static int sd_start(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int i;
	u8 reg01, reg17;
	u8 reg0102[2];
	const u8 *sn9c1xx;
	const u8 (*init)[8];
	const u8 *reg9a;
	int mode;
	static const u8 reg9a_def[] =
		{0x00, 0x40, 0x20, 0x00, 0x00, 0x00};
	static const u8 reg9a_spec[] =
		{0x00, 0x40, 0x38, 0x30, 0x00, 0x20};
	static const u8 regd4[] = {0x60, 0x00, 0x00};
	static const u8 C0[] = { 0x2d, 0x2d, 0x3a, 0x05, 0x04, 0x3f };
	static const u8 CA[] = { 0x28, 0xd8, 0x14, 0xec };
	static const u8 CA_adcm1700[] =
				{ 0x14, 0xec, 0x0a, 0xf6 };
	static const u8 CA_po2030n[] =
				{ 0x1e, 0xe2, 0x14, 0xec };
	static const u8 CE[] = { 0x32, 0xdd, 0x2d, 0xdd };	/* MI0360 */
	static const u8 CE_gc0307[] =
				{ 0x32, 0xce, 0x2d, 0xd3 };
	static const u8 CE_ov76xx[] =
				{ 0x32, 0xdd, 0x32, 0xdd };
	static const u8 CE_po2030n[] =
				{ 0x14, 0xe7, 0x1e, 0xdd };

	/* create the JPEG header */
	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
			gspca_dev->pixfmt.width,
			0x21);		/* JPEG 422 */

	/* initialize the bridge */
	sn9c1xx = sn_tb[sd->sensor];

	/* sensor clock already enabled in sd_init */
	/* reg_w1(gspca_dev, 0xf1, 0x00); */
	reg01 = sn9c1xx[1];
	if (sd->flags & F_PDN_INV)
		reg01 ^= S_PDN_INV;		/* power down inverted */
	reg_w1(gspca_dev, 0x01, reg01);

	/* configure gpio */
	reg0102[0] = reg01;
	reg0102[1] = sn9c1xx[2];
	if (gspca_dev->audio)
		reg0102[1] |= 0x04;	/* keep the audio connection */
	reg_w(gspca_dev, 0x01, reg0102, 2);
	reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2);
	reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5);
	switch (sd->sensor) {
	case SENSOR_GC0307:
	case SENSOR_OV7660:
	case SENSOR_PO1030:
	case SENSOR_PO2030N:
	case SENSOR_SOI768:
	case SENSOR_SP80708:
		reg9a = reg9a_spec;
		break;
	default:
		reg9a = reg9a_def;
		break;
	}
	reg_w(gspca_dev, 0x9a, reg9a, 6);

	reg_w(gspca_dev, 0xd4, regd4, sizeof regd4);

	reg_w(gspca_dev, 0x03, &sn9c1xx[3], 0x0f);

	reg17 = sn9c1xx[0x17];
	switch (sd->sensor) {
	case SENSOR_GC0307:
		msleep(50);		/*fixme: is it useful? */
		break;
	case SENSOR_OM6802:
		msleep(10);
		reg_w1(gspca_dev, 0x02, 0x73);
		reg17 |= SEN_CLK_EN;
		reg_w1(gspca_dev, 0x17, reg17);
		reg_w1(gspca_dev, 0x01, 0x22);
		msleep(100);
		reg01 = SCL_SEL_OD | S_PDN_INV;
		reg17 &= ~MCK_SIZE_MASK;
		reg17 |= 0x04;		/* clock / 4 */
		break;
	}
	reg01 |= SYS_SEL_48M;
	reg_w1(gspca_dev, 0x01, reg01);
	reg17 |= SEN_CLK_EN;
	reg_w1(gspca_dev, 0x17, reg17);
	reg01 &= ~S_PWR_DN;		/* sensor power on */
	reg_w1(gspca_dev, 0x01, reg01);
	reg01 &= ~SCL_SEL_OD;		/* remove open-drain mode */
	reg_w1(gspca_dev, 0x01, reg01);

	switch (sd->sensor) {
	case SENSOR_HV7131R:
		hv7131r_probe(gspca_dev);	/*fixme: is it useful? */
		break;
	case SENSOR_OM6802:
		msleep(10);
		reg_w1(gspca_dev, 0x01, reg01);
		i2c_w8(gspca_dev, om6802_init0[0]);
		i2c_w8(gspca_dev, om6802_init0[1]);
		msleep(15);
		reg_w1(gspca_dev, 0x02, 0x71);
		msleep(150);
		break;
	case SENSOR_SP80708:
		msleep(100);
		reg_w1(gspca_dev, 0x02, 0x62);
		break;
	}

	/* initialize the sensor */
	i2c_w_seq(gspca_dev, sensor_init[sd->sensor]);

	reg_w1(gspca_dev, 0x15, sn9c1xx[0x15]);
	reg_w1(gspca_dev, 0x16, sn9c1xx[0x16]);
	reg_w1(gspca_dev, 0x12, sn9c1xx[0x12]);
	reg_w1(gspca_dev, 0x13, sn9c1xx[0x13]);
	reg_w1(gspca_dev, 0x18, sn9c1xx[0x18]);
	if (sd->sensor == SENSOR_ADCM1700) {
		reg_w1(gspca_dev, 0xd2, 0x3a);	/* AE_H_SIZE = 116 */
		reg_w1(gspca_dev, 0xd3, 0x30);	/* AE_V_SIZE = 96 */
	} else {
		reg_w1(gspca_dev, 0xd2, 0x6a);	/* AE_H_SIZE = 212 */
		reg_w1(gspca_dev, 0xd3, 0x50);	/* AE_V_SIZE = 160 */
	}
	reg_w1(gspca_dev, 0xc6, 0x00);
	reg_w1(gspca_dev, 0xc7, 0x00);
	if (sd->sensor == SENSOR_ADCM1700) {
		reg_w1(gspca_dev, 0xc8, 0x2c);	/* AW_H_STOP = 352 */
		reg_w1(gspca_dev, 0xc9, 0x24);	/* AW_V_STOP = 288 */
	} else {
		reg_w1(gspca_dev, 0xc8, 0x50);	/* AW_H_STOP = 640 */
		reg_w1(gspca_dev, 0xc9, 0x3c);	/* AW_V_STOP = 480 */
	}
	reg_w1(gspca_dev, 0x18, sn9c1xx[0x18]);
	switch (sd->sensor) {
	case SENSOR_OM6802:
/*	case SENSOR_OV7648:		* fixme: sometimes */
		break;
	default:
		reg17 |= DEF_EN;
		break;
	}
	reg_w1(gspca_dev, 0x17, reg17);

	reg_w1(gspca_dev, 0x05, 0x00);		/* red */
	reg_w1(gspca_dev, 0x07, 0x00);		/* green */
	reg_w1(gspca_dev, 0x06, 0x00);		/* blue */
	reg_w1(gspca_dev, 0x14, sn9c1xx[0x14]);

	setgamma(gspca_dev);

/*fixme: 8 times with all zeroes and 1 or 2 times with normal values */
	for (i = 0; i < 8; i++)
		reg_w(gspca_dev, 0x84, reg84, sizeof reg84);
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
	case SENSOR_OV7660:
	case SENSOR_SP80708:
		reg_w1(gspca_dev, 0x9a, 0x05);
		break;
	case SENSOR_GC0307:
	case SENSOR_MT9V111:
	case SENSOR_MI0360B:
		reg_w1(gspca_dev, 0x9a, 0x07);
		break;
	case SENSOR_OV7630:
	case SENSOR_OV7648:
		reg_w1(gspca_dev, 0x9a, 0x0a);
		break;
	case SENSOR_PO2030N:
	case SENSOR_SOI768:
		reg_w1(gspca_dev, 0x9a, 0x06);
		break;
	default:
		reg_w1(gspca_dev, 0x9a, 0x08);
		break;
	}
	setsharpness(gspca_dev);

	reg_w(gspca_dev, 0x84, reg84, sizeof reg84);
	reg_w1(gspca_dev, 0x05, 0x20);		/* red */
	reg_w1(gspca_dev, 0x07, 0x20);		/* green */
	reg_w1(gspca_dev, 0x06, 0x20);		/* blue */

	init = NULL;
	mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
	reg01 |= SYS_SEL_48M | V_TX_EN;
	reg17 &= ~MCK_SIZE_MASK;
	reg17 |= 0x02;			/* clock / 2 */
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
		init = adcm1700_sensor_param1;
		break;
	case SENSOR_GC0307:
		init = gc0307_sensor_param1;
		break;
	case SENSOR_HV7131R:
	case SENSOR_MI0360:
		if (!mode)
			reg01 &= ~SYS_SEL_48M;	/* 640x480: clk 24Mhz */
		reg17 &= ~MCK_SIZE_MASK;
		reg17 |= 0x01;			/* clock / 1 */
		break;
	case SENSOR_MI0360B:
		init = mi0360b_sensor_param1;
		break;
	case SENSOR_MO4000:
		if (mode) {			/* if 320x240 */
			reg01 &= ~SYS_SEL_48M;	/* clk 24Mz */
			reg17 &= ~MCK_SIZE_MASK;
			reg17 |= 0x01;		/* clock / 1 */
		}
		break;
	case SENSOR_MT9V111:
		init = mt9v111_sensor_param1;
		break;
	case SENSOR_OM6802:
		init = om6802_sensor_param1;
		if (!mode) {			/* if 640x480 */
			reg17 &= ~MCK_SIZE_MASK;
			reg17 |= 0x04;		/* clock / 4 */
		} else {
			reg01 &= ~SYS_SEL_48M;	/* clk 24Mz */
			reg17 &= ~MCK_SIZE_MASK;
			reg17 |= 0x02;		/* clock / 2 */
		}
		break;
	case SENSOR_OV7630:
		init = ov7630_sensor_param1;
		break;
	case SENSOR_OV7648:
		init = ov7648_sensor_param1;
		reg17 &= ~MCK_SIZE_MASK;
		reg17 |= 0x01;			/* clock / 1 */
		break;
	case SENSOR_OV7660:
		init = ov7660_sensor_param1;
		break;
	case SENSOR_PO1030:
		init = po1030_sensor_param1;
		break;
	case SENSOR_PO2030N:
		init = po2030n_sensor_param1;
		break;
	case SENSOR_SOI768:
		init = soi768_sensor_param1;
		break;
	case SENSOR_SP80708:
		init = sp80708_sensor_param1;
		break;
	}

	/* more sensor initialization - param1 */
	if (init != NULL) {
		i2c_w_seq(gspca_dev, init);
/*		init = NULL; */
	}

	reg_w(gspca_dev, 0xc0, C0, 6);
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
	case SENSOR_GC0307:
	case SENSOR_SOI768:
		reg_w(gspca_dev, 0xca, CA_adcm1700, 4);
		break;
	case SENSOR_PO2030N:
		reg_w(gspca_dev, 0xca, CA_po2030n, 4);
		break;
	default:
		reg_w(gspca_dev, 0xca, CA, 4);
		break;
	}
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
	case SENSOR_OV7630:
	case SENSOR_OV7648:
	case SENSOR_OV7660:
	case SENSOR_SOI768:
		reg_w(gspca_dev, 0xce, CE_ov76xx, 4);
		break;
	case SENSOR_GC0307:
		reg_w(gspca_dev, 0xce, CE_gc0307, 4);
		break;
	case SENSOR_PO2030N:
		reg_w(gspca_dev, 0xce, CE_po2030n, 4);
		break;
	default:
		reg_w(gspca_dev, 0xce, CE, 4);
					/* ?? {0x1e, 0xdd, 0x2d, 0xe7} */
		break;
	}

	/* here change size mode 0 -> VGA; 1 -> CIF */
	sd->reg18 = sn9c1xx[0x18] | (mode << 4) | 0x40;
	reg_w1(gspca_dev, 0x18, sd->reg18);
	setjpegqual(gspca_dev);

	reg_w1(gspca_dev, 0x17, reg17);
	reg_w1(gspca_dev, 0x01, reg01);
	sd->reg01 = reg01;
	sd->reg17 = reg17;

	sd->pktsz = sd->npkt = 0;
	sd->nchg = sd->short_mark = 0;

	return gspca_dev->usb_err;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	static const u8 stophv7131[] =
		{ 0xa1, 0x11, 0x02, 0x09, 0x00, 0x00, 0x00, 0x10 };
	static const u8 stopmi0360[] =
		{ 0xb1, 0x5d, 0x07, 0x00, 0x00, 0x00, 0x00, 0x10 };
	static const u8 stopov7648[] =
		{ 0xa1, 0x21, 0x76, 0x20, 0x00, 0x00, 0x00, 0x10 };
	static const u8 stopsoi768[] =
		{ 0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10 };
	u8 reg01;
	u8 reg17;

	reg01 = sd->reg01;
	reg17 = sd->reg17 & ~SEN_CLK_EN;
	switch (sd->sensor) {
	case SENSOR_ADCM1700:
	case SENSOR_GC0307:
	case SENSOR_PO2030N:
	case SENSOR_SP80708:
		reg01 |= LED;
		reg_w1(gspca_dev, 0x01, reg01);
		reg01 &= ~(LED | V_TX_EN);
		reg_w1(gspca_dev, 0x01, reg01);
/*		reg_w1(gspca_dev, 0x02, 0x??);	 * LED off ? */
		break;
	case SENSOR_HV7131R:
		reg01 &= ~V_TX_EN;
		reg_w1(gspca_dev, 0x01, reg01);
		i2c_w8(gspca_dev, stophv7131);
		break;
	case SENSOR_MI0360:
	case SENSOR_MI0360B:
		reg01 &= ~V_TX_EN;
		reg_w1(gspca_dev, 0x01, reg01);
/*		reg_w1(gspca_dev, 0x02, 0x40);	  * LED off ? */
		i2c_w8(gspca_dev, stopmi0360);
		break;
	case SENSOR_MT9V111:
	case SENSOR_OM6802:
	case SENSOR_PO1030:
		reg01 &= ~V_TX_EN;
		reg_w1(gspca_dev, 0x01, reg01);
		break;
	case SENSOR_OV7630:
	case SENSOR_OV7648:
		reg01 &= ~V_TX_EN;
		reg_w1(gspca_dev, 0x01, reg01);
		i2c_w8(gspca_dev, stopov7648);
		break;
	case SENSOR_OV7660:
		reg01 &= ~V_TX_EN;
		reg_w1(gspca_dev, 0x01, reg01);
		break;
	case SENSOR_SOI768:
		i2c_w8(gspca_dev, stopsoi768);
		break;
	}

	reg01 |= SCL_SEL_OD;
	reg_w1(gspca_dev, 0x01, reg01);
	reg01 |= S_PWR_DN;		/* sensor power down */
	reg_w1(gspca_dev, 0x01, reg01);
	reg_w1(gspca_dev, 0x17, reg17);
	reg01 &= ~SYS_SEL_48M;		/* clock 24MHz */
	reg_w1(gspca_dev, 0x01, reg01);
	reg01 |= LED;
	reg_w1(gspca_dev, 0x01, reg01);
	/* Don't disable sensor clock as that disables the button on the cam */
	/* reg_w1(gspca_dev, 0xf1, 0x01); */
}

/* called on streamoff with alt==0 and on disconnect */
/* the usb_lock is held at entry - restore on exit */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	mutex_unlock(&gspca_dev->usb_lock);
	flush_work(&sd->work);
	mutex_lock(&gspca_dev->usb_lock);
}

static void do_autogain(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int delta;
	int expotimes;
	u8 luma_mean = 130;
	u8 luma_delta = 20;

	/* Thanks S., without your advice, autobright should not work :) */
	if (sd->ag_cnt < 0)
		return;
	if (--sd->ag_cnt >= 0)
		return;
	sd->ag_cnt = AG_CNT_START;

	delta = atomic_read(&sd->avg_lum);
	gspca_dbg(gspca_dev, D_FRAM, "mean lum %d\n", delta);

	if (sd->sensor == SENSOR_PO2030N) {
		gspca_expo_autogain(gspca_dev, delta, luma_mean, luma_delta,
					15, 1024);
		return;
	}

	if (delta < luma_mean - luma_delta ||
	    delta > luma_mean + luma_delta) {
		switch (sd->sensor) {
		case SENSOR_GC0307:
			expotimes = sd->exposure;
			expotimes += (luma_mean - delta) >> 6;
			if (expotimes < 0)
				expotimes = 0;
			sd->exposure = expo_adjust(gspca_dev,
						   (unsigned int) expotimes);
			break;
		case SENSOR_HV7131R:
			expotimes = sd->exposure >> 8;
			expotimes += (luma_mean - delta) >> 4;
			if (expotimes < 0)
				expotimes = 0;
			sd->exposure = expo_adjust(gspca_dev,
					(unsigned int) (expotimes << 8));
			break;
		case SENSOR_OM6802:
		case SENSOR_MT9V111:
			expotimes = sd->exposure;
			expotimes += (luma_mean - delta) >> 2;
			if (expotimes < 0)
				expotimes = 0;
			sd->exposure = expo_adjust(gspca_dev,
						   (unsigned int) expotimes);
			setredblue(gspca_dev);
			break;
		default:
/*		case SENSOR_MO4000: */
/*		case SENSOR_MI0360: */
/*		case SENSOR_MI0360B: */
			expotimes = sd->exposure;
			expotimes += (luma_mean - delta) >> 6;
			if (expotimes < 0)
				expotimes = 0;
			sd->exposure = expo_adjust(gspca_dev,
						   (unsigned int) expotimes);
			setredblue(gspca_dev);
			break;
		}
	}
}

/* set the average luminosity from an isoc marker */
static void set_lum(struct sd *sd,
		    u8 *data)
{
	int avg_lum;

	/*	w0 w1 w2
	 *	w3 w4 w5
	 *	w6 w7 w8
	 */
	avg_lum = (data[27] << 8) + data[28]		/* w3 */

		+ (data[31] << 8) + data[32]		/* w5 */

		+ (data[23] << 8) + data[24]		/* w1 */

		+ (data[35] << 8) + data[36]		/* w7 */

		+ (data[29] << 10) + (data[30] << 2);	/* w4 * 4 */
	avg_lum >>= 10;
	atomic_set(&sd->avg_lum, avg_lum);
}

/* scan the URB packets */
/* This function is run at interrupt level. */
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
			u8 *data,			/* isoc packet */
			int len)			/* iso packet length */
{
	struct sd *sd = (struct sd *) gspca_dev;
	int i, new_qual;

	/*
	 * A frame ends on the marker
	 *		ff ff 00 c4 c4 96 ..
	 * which is 62 bytes long and is followed by various information
	 * including statuses and luminosity.
	 *
	 * A marker may be split on two packets.
	 *
	 * The 6th byte of a marker contains the bits:
	 *	0x08: USB full
	 *	0xc0: frame sequence
	 * When the bit 'USB full' is set, the frame must be discarded;
	 * this is also the case when the 2 bytes before the marker are
	 * not the JPEG end of frame ('ff d9').
	 */

	/* count the packets and their size */
	sd->npkt++;
	sd->pktsz += len;

/*fixme: assumption about the following code:
 *	- there can be only one marker in a packet
 */

	/* skip the remaining bytes of a short marker */
	i = sd->short_mark;
	if (i != 0) {
		sd->short_mark = 0;
		if (i < 0	/* if 'ff' at end of previous packet */
		 && data[0] == 0xff
		 && data[1] == 0x00)
			goto marker_found;
		if (data[0] == 0xff && data[1] == 0xff) {
			i = 0;
			goto marker_found;
		}
		len -= i;
		if (len <= 0)
			return;
		data += i;
	}

	/* search backwards if there is a marker in the packet */
	for (i = len - 1; --i >= 0; ) {
		if (data[i] != 0xff) {
			i--;
			continue;
		}
		if (data[i + 1] == 0xff) {

			/* (there may be 'ff ff' inside a marker) */
			if (i + 2 >= len || data[i + 2] == 0x00)
				goto marker_found;
		}
	}

	/* no marker found */
	/* add the JPEG header if first fragment */
	if (data[len - 1] == 0xff)
		sd->short_mark = -1;
	if (gspca_dev->last_packet_type == LAST_PACKET)
		gspca_frame_add(gspca_dev, FIRST_PACKET,
				sd->jpeg_hdr, JPEG_HDR_SZ);
	gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
	return;

	/* marker found */
	/* if some error, discard the frame and decrease the quality */
marker_found:
	new_qual = 0;
	if (i > 2) {
		if (data[i - 2] != 0xff || data[i - 1] != 0xd9) {
			gspca_dev->last_packet_type = DISCARD_PACKET;
			new_qual = -3;
		}
	} else if (i + 6 < len) {
		if (data[i + 6] & 0x08) {
			gspca_dev->last_packet_type = DISCARD_PACKET;
			new_qual = -5;
		}
	}

	gspca_frame_add(gspca_dev, LAST_PACKET, data, i);

	/* compute the filling rate and a new JPEG quality */
	if (new_qual == 0) {
		int r;

		r = (sd->pktsz * 100) /
			(sd->npkt *
				gspca_dev->urb[0]->iso_frame_desc[0].length);
		if (r >= 85)
			new_qual = -3;
		else if (r < 75)
			new_qual = 2;
	}
	if (new_qual != 0) {
		sd->nchg += new_qual;
		if (sd->nchg < -6 || sd->nchg >= 12) {
			sd->nchg = 0;
			new_qual += sd->quality;
			if (new_qual < QUALITY_MIN)
				new_qual = QUALITY_MIN;
			else if (new_qual > QUALITY_MAX)
				new_qual = QUALITY_MAX;
			if (new_qual != sd->quality) {
				sd->quality = new_qual;
				schedule_work(&sd->work);
			}
		}
	} else {
		sd->nchg = 0;
	}
	sd->pktsz = sd->npkt = 0;

	/* if the marker is smaller than 62 bytes,
	 * memorize the number of bytes to skip in the next packet */
	if (i + 62 > len) {			/* no more usable data */
		sd->short_mark = i + 62 - len;
		return;
	}
	if (sd->ag_cnt >= 0)
		set_lum(sd, data + i);

	/* if more data, start a new frame */
	i += 62;
	if (i < len) {
		data += i;
		len -= i;
		gspca_frame_add(gspca_dev, FIRST_PACKET,
				sd->jpeg_hdr, JPEG_HDR_SZ);
		gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
	}
}

static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct gspca_dev *gspca_dev =
		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);

	gspca_dev->usb_err = 0;

	if (!gspca_dev->streaming)
		return 0;

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		setbrightness(gspca_dev);
		break;
	case V4L2_CID_CONTRAST:
		setcontrast(gspca_dev);
		break;
	case V4L2_CID_SATURATION:
		setcolors(gspca_dev);
		break;
	case V4L2_CID_RED_BALANCE:
		setredblue(gspca_dev);
		break;
	case V4L2_CID_GAMMA:
		setgamma(gspca_dev);
		break;
	case V4L2_CID_AUTOGAIN:
		setautogain(gspca_dev);
		setexposure(gspca_dev);
		setgain(gspca_dev);
		break;
	case V4L2_CID_VFLIP:
		sethvflip(gspca_dev);
		break;
	case V4L2_CID_SHARPNESS:
		setsharpness(gspca_dev);
		break;
	case V4L2_CID_ILLUMINATORS_1:
		setillum(gspca_dev);
		break;
	case V4L2_CID_POWER_LINE_FREQUENCY:
		setfreq(gspca_dev);
		break;
	default:
		return -EINVAL;
	}
	return gspca_dev->usb_err;
}

#if IS_ENABLED(CONFIG_INPUT)
static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
			u8 *data,		/* interrupt packet data */
			int len)		/* interrupt packet length */
{
	int ret = -EINVAL;

	if (len == 1 && data[0] == 1) {
		input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
		input_sync(gspca_dev->input_dev);
		input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
		input_sync(gspca_dev->input_dev);
		ret = 0;
	}

	return ret;
}
#endif

/* sub-driver description */
static const struct sd_desc sd_desc = {
	.name = MODULE_NAME,
	.config = sd_config,
	.init = sd_init,
	.init_controls = sd_init_controls,
	.start = sd_start,
	.stopN = sd_stopN,
	.stop0 = sd_stop0,
	.pkt_scan = sd_pkt_scan,
	.dq_callback = do_autogain,
#if IS_ENABLED(CONFIG_INPUT)
	.int_pkt_scan = sd_int_pkt_scan,
#endif
};

/* -- module initialisation -- */
#define BS(bridge, sensor) \
	.driver_info = (BRIDGE_ ## bridge << 16) \
			| (SENSOR_ ## sensor << 8)
#define BSF(bridge, sensor, flags) \
	.driver_info = (BRIDGE_ ## bridge << 16) \
			| (SENSOR_ ## sensor << 8) \
			| (flags)
static const struct usb_device_id device_table[] = {
	{USB_DEVICE(0x0458, 0x7025), BSF(SN9C120, MI0360B, F_PDN_INV)},
	{USB_DEVICE(0x0458, 0x702e), BS(SN9C120, OV7660)},
	{USB_DEVICE(0x045e, 0x00f5), BSF(SN9C105, OV7660, F_PDN_INV)},
	{USB_DEVICE(0x045e, 0x00f7), BSF(SN9C105, OV7660, F_PDN_INV)},
	{USB_DEVICE(0x0471, 0x0327), BS(SN9C105, MI0360)},
	{USB_DEVICE(0x0471, 0x0328), BS(SN9C105, MI0360)},
	{USB_DEVICE(0x0471, 0x0330), BS(SN9C105, MI0360)},
	{USB_DEVICE(0x06f8, 0x3004), BS(SN9C105, OV7660)},
	{USB_DEVICE(0x06f8, 0x3008), BS(SN9C105, OV7660)},
/*	{USB_DEVICE(0x0c45, 0x603a), BS(SN9C102P, OV7648)}, */
	{USB_DEVICE(0x0c45, 0x6040), BS(SN9C102P, HV7131R)},
/*	{USB_DEVICE(0x0c45, 0x607a), BS(SN9C102P, OV7648)}, */
/*	{USB_DEVICE(0x0c45, 0x607b), BS(SN9C102P, OV7660)}, */
	{USB_DEVICE(0x0c45, 0x607c), BS(SN9C102P, HV7131R)},
/*	{USB_DEVICE(0x0c45, 0x607e), BS(SN9C102P, OV7630)}, */
	{USB_DEVICE(0x0c45, 0x60c0), BSF(SN9C105, MI0360, F_ILLUM)},
						/* or MT9V111 */
/*	{USB_DEVICE(0x0c45, 0x60c2), BS(SN9C105, P1030xC)}, */
/*	{USB_DEVICE(0x0c45, 0x60c8), BS(SN9C105, OM6802)}, */
/*	{USB_DEVICE(0x0c45, 0x60cc), BS(SN9C105, HV7131GP)}, */
	{USB_DEVICE(0x0c45, 0x60ce), BS(SN9C105, SP80708)},
	{USB_DEVICE(0x0c45, 0x60ec), BS(SN9C105, MO4000)},
/*	{USB_DEVICE(0x0c45, 0x60ef), BS(SN9C105, ICM105C)}, */
/*	{USB_DEVICE(0x0c45, 0x60fa), BS(SN9C105, OV7648)}, */
/*	{USB_DEVICE(0x0c45, 0x60f2), BS(SN9C105, OV7660)}, */
	{USB_DEVICE(0x0c45, 0x60fb), BS(SN9C105, OV7660)},
	{USB_DEVICE(0x0c45, 0x60fc), BS(SN9C105, HV7131R)},
	{USB_DEVICE(0x0c45, 0x60fe), BS(SN9C105, OV7630)},
	{USB_DEVICE(0x0c45, 0x6100), BS(SN9C120, MI0360)},	/*sn9c128*/
	{USB_DEVICE(0x0c45, 0x6102), BS(SN9C120, PO2030N)},	/* /GC0305*/
/*	{USB_DEVICE(0x0c45, 0x6108), BS(SN9C120, OM6802)}, */
	{USB_DEVICE(0x0c45, 0x610a), BS(SN9C120, OV7648)},	/*sn9c128*/
	{USB_DEVICE(0x0c45, 0x610b), BS(SN9C120, OV7660)},	/*sn9c128*/
	{USB_DEVICE(0x0c45, 0x610c), BS(SN9C120, HV7131R)},	/*sn9c128*/
	{USB_DEVICE(0x0c45, 0x610e), BS(SN9C120, OV7630)},	/*sn9c128*/
/*	{USB_DEVICE(0x0c45, 0x610f), BS(SN9C120, S5K53BEB)}, */
/*	{USB_DEVICE(0x0c45, 0x6122), BS(SN9C110, ICM105C)}, */
/*	{USB_DEVICE(0x0c45, 0x6123), BS(SN9C110, SanyoCCD)}, */
	{USB_DEVICE(0x0c45, 0x6128), BS(SN9C120, OM6802)},	/*sn9c325?*/
/*bw600.inf:*/
	{USB_DEVICE(0x0c45, 0x612a), BS(SN9C120, OV7648)},	/*sn9c325?*/
	{USB_DEVICE(0x0c45, 0x612b), BS(SN9C110, ADCM1700)},
	{USB_DEVICE(0x0c45, 0x612c), BS(SN9C110, MO4000)},
	{USB_DEVICE(0x0c45, 0x612e), BS(SN9C110, OV7630)},
/*	{USB_DEVICE(0x0c45, 0x612f), BS(SN9C110, ICM105C)}, */
	{USB_DEVICE(0x0c45, 0x6130), BS(SN9C120, MI0360)},
						/* or MT9V111 / MI0360B */
/*	{USB_DEVICE(0x0c45, 0x6132), BS(SN9C120, OV7670)}, */
	{USB_DEVICE(0x0c45, 0x6138), BS(SN9C120, MO4000)},
	{USB_DEVICE(0x0c45, 0x613a), BS(SN9C120, OV7648)},
	{USB_DEVICE(0x0c45, 0x613b), BS(SN9C120, OV7660)},
	{USB_DEVICE(0x0c45, 0x613c), BS(SN9C120, HV7131R)},
	{USB_DEVICE(0x0c45, 0x613e), BS(SN9C120, OV7630)},
	{USB_DEVICE(0x0c45, 0x6142), BS(SN9C120, PO2030N)},	/*sn9c120b*/
						/* or GC0305 / GC0307 */
	{USB_DEVICE(0x0c45, 0x6143), BS(SN9C120, SP80708)},	/*sn9c120b*/
	{USB_DEVICE(0x0c45, 0x6148), BS(SN9C120, OM6802)},	/*sn9c120b*/
	{USB_DEVICE(0x0c45, 0x614a), BSF(SN9C120, ADCM1700, F_ILLUM)},
/*	{USB_DEVICE(0x0c45, 0x614c), BS(SN9C120, GC0306)}, */	/*sn9c120b*/
	{}
};
MODULE_DEVICE_TABLE(usb, device_table);

/* -- device connect -- */
static int sd_probe(struct usb_interface *intf,
		    const struct usb_device_id *id)
{
	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
				THIS_MODULE);
}

static struct usb_driver sd_driver = {
	.name = MODULE_NAME,
	.id_table = device_table,
	.probe = sd_probe,
	.disconnect = gspca_disconnect,
#ifdef CONFIG_PM
	.suspend = gspca_suspend,
	.resume = gspca_resume,
	.reset_resume = gspca_resume,
#endif
};

module_usb_driver(sd_driver);