drivers/media/video/gspca/sonixj.c

/*
 *		Sonix sn9c102p sn9c105 sn9c120 (jpeg) library
 *		Copyright (C) 2005 Michel Xhaard mxhaard@magic.fr
 *
 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#define MODULE_NAME "sonixj"

#include "gspca.h"
#include "jpeg.h"

MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
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;
	unsigned int exposure;

	unsigned short brightness;
	unsigned char contrast;
	unsigned char colors;
	unsigned char autogain;

	signed char ag_cnt;
#define AG_CNT_START 13

	char qindex;
	unsigned char bridge;
#define BRIDGE_SN9C102P 0
#define BRIDGE_SN9C105 1
#define BRIDGE_SN9C110 2
#define BRIDGE_SN9C120 3
#define BRIDGE_SN9C325 4
	char sensor;			/* Type of image sensor chip */
#define SENSOR_HV7131R 0
#define SENSOR_MI0360 1
#define SENSOR_MO4000 2
#define SENSOR_OM6802 3
#define SENSOR_OV7630 4
#define SENSOR_OV7648 5
#define SENSOR_OV7660 6
	unsigned char i2c_base;
};

/* V4L2 controls supported by the driver */
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);

static struct ctrl sd_ctrls[] = {
	{
	    {
		.id      = V4L2_CID_BRIGHTNESS,
		.type    = V4L2_CTRL_TYPE_INTEGER,
		.name    = "Brightness",
		.minimum = 0,
		.maximum = 0xffff,
		.step    = 1,
#define BRIGHTNESS_DEF 0x7fff
		.default_value = BRIGHTNESS_DEF,
	    },
	    .set = sd_setbrightness,
	    .get = sd_getbrightness,
	},
	{
	    {
		.id      = V4L2_CID_CONTRAST,
		.type    = V4L2_CTRL_TYPE_INTEGER,
		.name    = "Contrast",
		.minimum = 0,
		.maximum = 127,
		.step    = 1,
#define CONTRAST_DEF 63
		.default_value = CONTRAST_DEF,
	    },
	    .set = sd_setcontrast,
	    .get = sd_getcontrast,
	},
	{
	    {
		.id      = V4L2_CID_SATURATION,
		.type    = V4L2_CTRL_TYPE_INTEGER,
		.name    = "Color",
		.minimum = 0,
		.maximum = 255,
		.step    = 1,
#define COLOR_DEF 127
		.default_value = COLOR_DEF,
	    },
	    .set = sd_setcolors,
	    .get = sd_getcolors,
	},
	{
	    {
		.id      = V4L2_CID_AUTOGAIN,
		.type    = V4L2_CTRL_TYPE_BOOLEAN,
		.name    = "Auto Gain",
		.minimum = 0,
		.maximum = 1,
		.step    = 1,
#define AUTOGAIN_DEF 1
		.default_value = AUTOGAIN_DEF,
	    },
	    .set = sd_setautogain,
	    .get = sd_getautogain,
	},
};

static struct v4l2_pix_format vga_mode[] = {
	{160, 120, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 160,
		.sizeimage = 160 * 120 * 3 / 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,
		.sizeimage = 640 * 480 * 3 / 8 + 590,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0},
};

/*Data from sn9c102p+hv71331r */
static const __u8 sn_hv7131[] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x03,	0x64,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0xa1,	0x11,	0x02,	0x09,	0x00,	0x00,	0x00,	0x10,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x01,	0x03,	0x28,	0x1e,	0x41,
/*	reg18	reg19	reg1a	reg1b	reg1c	reg1d	reg1e	reg1f */
	0x0a,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00
};

static const __u8 sn_mi0360[] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x61,	0x44,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0xb1,	0x5d,	0x07,	0x00,	0x00,	0x00,	0x00,	0x10,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x02,	0x0a,	0x28,	0x1e,	0x61,
/*	reg18	reg19	reg1a	reg1b	reg1c	reg1d	reg1e	reg1f */
	0x06,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00
};

static const __u8 sn_mo4000[] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x12,	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	reg1c	reg1d	reg1e	reg1f */
	0x08,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00
};

static const __u8 sn_om6802[] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x23,	0x72,	0x00,	0x1a,	0x34,	0x27,	0x20,
/*	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	reg1c	reg1d	reg1e	reg1f */
	0x05,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
	0x08,	0x22,	0x44,	0x63,	0x7d,	0x92,	0xa3,	0xaf,
	0xbc,	0xc4,	0xcd,	0xd5,	0xdc,	0xe1,	0xe8,	0xef,
	0xf7
};

static const __u8 sn_ov7630[] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x21,	0x40,	0x00,	0x1a,	0x20,	0x1f,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0xa1,	0x21,	0x76,	0x21,	0x00,	0x00,	0x00,	0x10,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x04,	0x01,	0x0a,	0x28,	0x1e,	0xc2,
/*	reg18	reg19	reg1a	reg1b	reg1c	reg1d	reg1e	reg1f */
	0x0b,	0x00,	0x00,	0x00,	0x00,	0x00
};

static const __u8 sn_ov7648[] = {
/*	reg0	reg1	reg2	reg3	reg4	reg5	reg6	reg7 */
	0x00,	0x21,	0x62,	0x00,	0x1a,	0x20,	0x20,	0x20,
/*	reg8	reg9	rega	regb	regc	regd	rege	regf */
	0xa1,	0x6e,	0x18,	0x65,	0x00,	0x00,	0x00,	0x10,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x00,	0x06,	0x06,	0x28,	0x1e,	0x82,
/*	reg18	reg19	reg1a	reg1b	reg1c	reg1d	reg1e	reg1f */
	0x07,	0x00,	0x00,	0x00,	0x00,	0x00
};

static const __u8 sn_ov7660[]	= {
/*	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,	0x21,	0x07,	0x00,	0x00,	0x00,	0x00,	0x10,
/*	reg10	reg11	reg12	reg13	reg14	reg15	reg16	reg17 */
	0x03,	0x00,	0x01,	0x01,	0x08,	0x28,	0x1e,	0x20,
/*	reg18	reg19	reg1a	reg1b	reg1c	reg1d	reg1e	reg1f */
	0x07,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,
};

/* sequence specific to the sensors - !! index = SENSOR_xxx */
static const __u8 *sn_tb[] = {
	sn_hv7131,
	sn_mi0360,
	sn_mo4000,
	sn_om6802,
	sn_ov7630,
	sn_ov7648,
	sn_ov7660
};

static const __u8 regsn20[] = {
	0x00, 0x2d, 0x46, 0x5a, 0x6c, 0x7c, 0x8b, 0x99,
	0xa6, 0xb2, 0xbf, 0xca, 0xd5, 0xe0, 0xeb, 0xf5, 0xff
};
static const __u8 regsn20_sn9c325[] = {
	0x0a, 0x3a, 0x56, 0x6c, 0x7e, 0x8d, 0x9a, 0xa4,
	0xaf, 0xbb, 0xc5, 0xcd, 0xd5, 0xde, 0xe8, 0xed, 0xf5
};

static const __u8 reg84[] = {
	0x14, 0x00, 0x27, 0x00, 0x07, 0x00, 0xe5, 0x0f,
	0xe4, 0x0f, 0x38, 0x00, 0x3e, 0x00, 0xc3, 0x0f,
/*	0x00, 0x00, 0x00, 0x00, 0x00 */
	0xf7, 0x0f, 0x0a, 0x00, 0x00
};
static const __u8 reg84_sn9c325[] = {
	0x14, 0x00, 0x27, 0x00, 0x07, 0x00, 0xe4, 0x0f,
	0xd3, 0x0f, 0x4b, 0x00, 0x48, 0x00, 0xc0, 0x0f,
	0xf8, 0x0f, 0x00, 0x00, 0x00
};

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},
	{}
};
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 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 __u8 om6802_sensor_init[][8] = {
	{0xa0, 0x34, 0x90, 0x05, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0x49, 0x85, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0x5a, 0xc0, 0x00, 0x00, 0x00, 0x10},
	{0xa0, 0x34, 0xdd, 0x18, 0x00, 0x00, 0x00, 0x10},
/*	{0xa0, 0x34, 0xfb, 0x11, 0x00, 0x00, 0x00, 0x10}, */
	{0xa0, 0x34, 0xf0, 0x04, 0x00, 0x00, 0x00, 0x10},
					/* white balance & auto-exposure */
/*	{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 = AE) */
	{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, 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},
/* win: delay 20ms */
	{0xa1, 0x21, 0x12, 0x48, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x12, 0xc8, 0x00, 0x00, 0x00, 0x10},
/* win: delay 20ms */
	{0xa1, 0x21, 0x12, 0x48, 0x00, 0x00, 0x00, 0x10},
/* win: loop on 2 wwrite, 1 read */
	{0xd1, 0x21, 0x03, 0x80, 0x10, 0x20, 0x80, 0x10},
	{0xb1, 0x21, 0x0c, 0x20, 0x20, 0x00, 0x00, 0x10},
	{0xd1, 0x21, 0x11, 0x00, 0x48, 0xc0, 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},
/* */
	{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},
	{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, 0x11, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2a, 0x88, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x2b, 0x34, 0x00, 0x00, 0x00, 0x10},
	{0xa1, 0x21, 0x10, 0x83, 0x00, 0x00, 0x00, 0x10},
	{0xb1, 0x21, 0x01, 0x88, 0x70, 0x00, 0x00, 0x10},
	{}
};
static const __u8 ov7660_sensor_init[][8] = {
	{0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10}, /* reset SCCB */
/*		(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, 0x74, 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 */
/****** (some exchanges in the win trace) ******/
	{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) ******/
	{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 !!****/
	{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},
	{}
};
/*	  reg 0x04	  reg 0x07		   reg 0x10 */
/* expo = (COM1 & 0x02) | ((AECHH & 0x2f) << 10) | (AECh << 2) */

static const __u8 ov7648_sensor_init[][8] = {
	{0xC1, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00},
	{0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00},
	{0xC1, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00},
	{0xA1, 0x6E, 0x3F, 0x20, 0x00, 0x00, 0x00, 0x10},
	{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},
	{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},
	{0xD1, 0x6E, 0x2D, 0x14, 0x35, 0x61, 0x84, 0x10},
	{0xD1, 0x6E, 0x31, 0xA2, 0xBD, 0xD8, 0xFF, 0x10},
	{0xD1, 0x6E, 0x35, 0x06, 0x1E, 0x12, 0x02, 0x10},
	{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},
	{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},
 * This is currently setting a
 * blue tint, and some things more , i leave it here for future test if
 * somene is having problems with color on this sensor
	{0xD1, 0x6E, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xD1, 0x6E, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x10},
	{0xC1, 0x6E, 0x73, 0x10, 0x80, 0xEB, 0x00, 0x10},
	{0xA1, 0x6E, 0x1E, 0x03, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x15, 0x01, 0x00, 0x00, 0x00, 0x10},
	{0xC1, 0x6E, 0x16, 0x40, 0x40, 0x40, 0x00, 0x10},
	{0xA1, 0x6E, 0x1D, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x07, 0xB5, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x18, 0x6B, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x1D, 0x08, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10},
	{0xA1, 0x6E, 0x07, 0xB8, 0x00, 0x00, 0x00, 0x10},  */
	{0xC1, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00},
	{0xA1, 0x6E, 0x06, 0x03, 0x00, 0x00, 0x00, 0x10}, /* Bright... */
	{0xA1, 0x6E, 0x07, 0x66, 0x00, 0x00, 0x00, 0x10}, /* B.. */
	{0xC1, 0x6E, 0x1A, 0x03, 0x65, 0x90, 0x00, 0x10}, /* Bright/Witen....*/
/*	{0xC1, 0x6E, 0x16, 0x45, 0x40, 0x60, 0x00, 0x10},  * Bright/Witene */
	{}
};

static const __u8 qtable4[] = {
	0x06, 0x04, 0x04, 0x06, 0x04, 0x04, 0x06, 0x06, 0x06, 0x06, 0x08, 0x06,
	0x06, 0x08, 0x0A, 0x11,
	0x0A, 0x0A, 0x08, 0x08, 0x0A, 0x15, 0x0F, 0x0F, 0x0C, 0x11, 0x19, 0x15,
	0x19, 0x19, 0x17, 0x15,
	0x17, 0x17, 0x1B, 0x1D, 0x25, 0x21, 0x1B, 0x1D, 0x23, 0x1D, 0x17, 0x17,
	0x21, 0x2E, 0x21, 0x23,
	0x27, 0x29, 0x2C, 0x2C, 0x2C, 0x19, 0x1F, 0x30, 0x32, 0x2E, 0x29, 0x32,
	0x25, 0x29, 0x2C, 0x29,
	0x06, 0x08, 0x08, 0x0A, 0x08, 0x0A, 0x13, 0x0A, 0x0A, 0x13, 0x29, 0x1B,
	0x17, 0x1B, 0x29, 0x29,
	0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
	0x29, 0x29, 0x29, 0x29,
	0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
	0x29, 0x29, 0x29, 0x29,
	0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
	0x29, 0x29, 0x29, 0x29
};

/* read <len> bytes (len < sizeof gspca_dev->usb_buf) to gspca_dev->usb_buf */
static void reg_r(struct gspca_dev *gspca_dev,
		  __u16 value, int len)
{
	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);
	PDEBUG(D_USBI, "reg_r [%02x] -> %02x", value, gspca_dev->usb_buf[0]);
}

static void reg_w1(struct gspca_dev *gspca_dev,
		   __u16 value,
		   __u8 data)
{
	PDEBUG(D_USBO, "reg_w1 [%02x] = %02x", value, data);
	gspca_dev->usb_buf[0] = data;
	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);
}
static void reg_w(struct gspca_dev *gspca_dev,
			  __u16 value,
			  const __u8 *buffer,
			  int len)
{
	PDEBUG(D_USBO, "reg_w [%02x] = %02x %02x ..",
		value, buffer[0], buffer[1]);
	if (len <= sizeof gspca_dev->usb_buf) {
		memcpy(gspca_dev->usb_buf, buffer, len);
		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);
	} else {
		__u8 *tmpbuf;

		tmpbuf = kmalloc(len, GFP_KERNEL);
		memcpy(tmpbuf, buffer, len);
		usb_control_msg(gspca_dev->dev,
				usb_sndctrlpipe(gspca_dev->dev, 0),
				0x08,
			   USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
				value, 0,
				tmpbuf, len,
				500);
		kfree(tmpbuf);
	}
}

/* I2C write 1 byte */
static void i2c_w1(struct gspca_dev *gspca_dev, __u8 reg, __u8 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	PDEBUG(D_USBO, "i2c_w2 [%02x] = %02x", reg, val);
	gspca_dev->usb_buf[0] = 0x81 | (2 << 4);	/* = a1 */
	gspca_dev->usb_buf[1] = sd->i2c_base;
	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;
	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);
}

/* I2C write 8 bytes */
static void i2c_w8(struct gspca_dev *gspca_dev,
		   const __u8 *buffer)
{
	memcpy(gspca_dev->usb_buf, buffer, 8);
	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);
}

/* read 5 bytes in gspca_dev->usb_buf */
static void i2c_r5(struct gspca_dev *gspca_dev, __u8 reg)
{
	struct sd *sd = (struct sd *) gspca_dev;
	__u8 mode[8];

	mode[0] = 0x81 | 0x10;
	mode[1] = sd->i2c_base;
	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] = 0x81 | (5 << 4) | 0x02;
	mode[2] = 0;
	i2c_w8(gspca_dev, mode);
	msleep(2);
	reg_r(gspca_dev, 0x0a, 5);
}

static int probesensor(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;

	i2c_w1(gspca_dev, 0x02, 0);			/* sensor wakeup */
	msleep(10);
	reg_w1(gspca_dev, 0x02, 0x66);			/* Gpio on */
	msleep(10);
	i2c_r5(gspca_dev, 0);				/* read sensor id */
	if (gspca_dev->usb_buf[0] == 0x02
	    && gspca_dev->usb_buf[1] == 0x09
	    && gspca_dev->usb_buf[2] == 0x01
	    && gspca_dev->usb_buf[3] == 0x00
	    && gspca_dev->usb_buf[4] == 0x00) {
		PDEBUG(D_PROBE, "Find Sensor sn9c102P HV7131R");
		sd->sensor = SENSOR_HV7131R;
		return SENSOR_HV7131R;
	}
	PDEBUG(D_PROBE, "Find Sensor 0x%02x 0x%02x 0x%02x",
		gspca_dev->usb_buf[0], gspca_dev->usb_buf[1],
		gspca_dev->usb_buf[2]);
	PDEBUG(D_PROBE, "Sensor sn9c102P Not found");
	return -ENODEV;
}

static int configure_gpio(struct gspca_dev *gspca_dev,
			  const __u8 *sn9c1xx)
{
	struct sd *sd = (struct sd *) gspca_dev;
	const __u8 *reg9a;
	static const __u8 reg9a_def[] =
		{0x08, 0x40, 0x20, 0x10, 0x00, 0x04};
	static const __u8 reg9a_sn9c325[] =
		{0x0a, 0x40, 0x38, 0x30, 0x00, 0x20};
	static const __u8 regd4[] = {0x60, 0x00, 0x00};

	reg_w1(gspca_dev, 0xf1, 0x00);
	reg_w1(gspca_dev, 0x01, 0x00);		/*jfm was sn9c1xx[1] in v1*/

	/* configure gpio */
	reg_w(gspca_dev, 0x01, &sn9c1xx[1], 2);
	reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2);
	reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5);	/* jfm len was 3 */
	switch (sd->bridge) {
	case BRIDGE_SN9C325:
		reg9a = reg9a_sn9c325;
		break;
	default:
		reg9a = reg9a_def;
		break;
	}
	reg_w(gspca_dev, 0x9a, reg9a, 6);

	reg_w(gspca_dev, 0xd4, regd4, sizeof regd4); /*fixme:jfm was 60 only*/

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

	switch (sd->sensor) {
	case SENSOR_OM6802:
		reg_w1(gspca_dev, 0x02, 0x71);
		reg_w1(gspca_dev, 0x01, 0x42);
		reg_w1(gspca_dev, 0x17, 0x64);
		reg_w1(gspca_dev, 0x01, 0x42);
		break;
	case SENSOR_OV7648:
		reg_w1(gspca_dev, 0x01, 0x43);
		reg_w1(gspca_dev, 0x17, 0xae);
		reg_w1(gspca_dev, 0x01, 0x42);
		break;
	default:
		reg_w1(gspca_dev, 0x01, 0x43);
		reg_w1(gspca_dev, 0x17, 0x61);
		reg_w1(gspca_dev, 0x01, 0x42);
		if (sd->sensor == SENSOR_HV7131R) {
			if (probesensor(gspca_dev) < 0)
				return -ENODEV;
		}
		break;
	}
	return 0;
}

static void hv7131R_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;
	static const __u8 SetSensorClk[] =	/* 0x08 Mclk */
		{ 0xa1, 0x11, 0x01, 0x18, 0x00, 0x00, 0x00, 0x10 };

	while (hv7131r_sensor_init[i][0]) {
		i2c_w8(gspca_dev, hv7131r_sensor_init[i]);
		i++;
	}
	i2c_w8(gspca_dev, SetSensorClk);
}

static void mi0360_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;

	while (mi0360_sensor_init[i][0]) {
		i2c_w8(gspca_dev, mi0360_sensor_init[i]);
		i++;
	}
}

static void mo4000_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;

	while (mo4000_sensor_init[i][0]) {
		i2c_w8(gspca_dev, mo4000_sensor_init[i]);
		i++;
	}
}

static void om6802_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;

	while (om6802_sensor_init[i][0]) {
		i2c_w8(gspca_dev, om6802_sensor_init[i]);
		i++;
	}
}

static void ov7630_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;

	i2c_w8(gspca_dev, ov7630_sensor_init[i]);
	i++;
	msleep(20);
	while (ov7630_sensor_init[i][0]) {
		i2c_w8(gspca_dev, ov7630_sensor_init[i]);
		i++;
	}
}

static void ov7648_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;

	while (ov7648_sensor_init[i][0]) {
		i2c_w8(gspca_dev, ov7648_sensor_init[i]);
		i++;
	}
}

static void ov7660_InitSensor(struct gspca_dev *gspca_dev)
{
	int i = 0;

	i2c_w8(gspca_dev, ov7660_sensor_init[i]);	/* reset SCCB */
	i++;
	msleep(20);
	while (ov7660_sensor_init[i][0]) {
		i2c_w8(gspca_dev, ov7660_sensor_init[i]);
		i++;
	}
}

/* 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;

	cam = &gspca_dev->cam;
	cam->epaddr = 0x01;
	cam->cam_mode = vga_mode;
	cam->nmodes = ARRAY_SIZE(vga_mode);

	sd->bridge = id->driver_info >> 16;
	sd->sensor = id->driver_info >> 8;
	sd->i2c_base = id->driver_info;

	sd->qindex = 4;			/* set the quantization table */
	sd->brightness = BRIGHTNESS_DEF;
	sd->contrast = CONTRAST_DEF;
	sd->colors = COLOR_DEF;
	sd->autogain = AUTOGAIN_DEF;
	sd->ag_cnt = -1;

	return 0;
}

/* this function is called at open time */
static int sd_open(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
/*	const __u8 *sn9c1xx; */
	__u8 regGpio[] = { 0x29, 0x74 };
	__u8 regF1;

	/* setup a selector by bridge */
	reg_w1(gspca_dev, 0xf1, 0x01);
	reg_r(gspca_dev, 0x00, 1);
	reg_w1(gspca_dev, 0xf1, gspca_dev->usb_buf[0]);
	reg_r(gspca_dev, 0x00, 1);		/* get sonix chip id */
	regF1 = gspca_dev->usb_buf[0];
	PDEBUG(D_PROBE, "Sonix chip id: %02x", regF1);
	switch (sd->bridge) {
	case BRIDGE_SN9C102P:
		if (regF1 != 0x11)
			return -ENODEV;
		reg_w1(gspca_dev, 0x02, regGpio[1]);
		break;
	case BRIDGE_SN9C105:
		if (regF1 != 0x11)
			return -ENODEV;
		reg_w(gspca_dev, 0x02, regGpio, 2);
		break;
	case BRIDGE_SN9C120:
		if (regF1 != 0x12)
			return -ENODEV;
		regGpio[1] = 0x70;
		reg_w(gspca_dev, 0x02, regGpio, 2);
		break;
	default:
/*	case BRIDGE_SN9C110: */
/*	case BRIDGE_SN9C325: */
		if (regF1 != 0x12)
			return -ENODEV;
		reg_w1(gspca_dev, 0x02, 0x62);
		break;
	}

	reg_w1(gspca_dev, 0xf1, 0x01);

	return 0;
}

static unsigned int setexposure(struct gspca_dev *gspca_dev,
				unsigned int expo)
{
	struct sd *sd = (struct sd *) gspca_dev;
	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 };
	static const __u8 gainMo[] =
		{ 0xa1, 0x21, 0x00, 0x10, 0x00, 0x00, 0x00, 0x1d };

	switch (sd->sensor) {
	case SENSOR_HV7131R: {
		__u8 Expodoit[] =
			{ 0xc1, 0x11, 0x25, 0x07, 0x27, 0xc0, 0x00, 0x16 };

		Expodoit[3] = expo >> 16;
		Expodoit[4] = expo >> 8;
		Expodoit[5] = expo;
		i2c_w8(gspca_dev, Expodoit);
		break;
	    }
	case SENSOR_MI0360: {
		__u8 expoMi[] =	 /* exposure 0x0635 -> 4 fp/s 0x10 */
			{ 0xb1, 0x5d, 0x09, 0x06, 0x35, 0x00, 0x00, 0x16 };

		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, 0x20, 0x00, 0x00, 0x00, 0x10 };
		__u8 expoMo10[] =
			{ 0xa1, 0x21, 0x10, 0x20, 0x00, 0x00, 0x00, 0x10 };

		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);
		PDEBUG(D_CONF, "set exposure %d",
			((expoMo10[3] & 0x07) << 10)
			| (expoMof[3] << 2)
			| ((expoMo10[3] & 0x30) >> 4));
		break;
	    }
	case SENSOR_OM6802: {
		__u8 gainOm[] =
			{ 0xa0, 0x34, 0xe5, 0x00, 0x00, 0x00, 0x00, 0x10 };

		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);
		PDEBUG(D_CONF, "set exposure %d", gainOm[3]);
		break;
	    }
	}
	return expo;
}

static void setbrightness(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	unsigned int expo;
	__u8 k2;

	k2 = sd->brightness >> 10;
	switch (sd->sensor) {
	case SENSOR_HV7131R:
		expo = sd->brightness << 4;
		if (expo > 0x002dc6c0)
			expo = 0x002dc6c0;
		else if (expo < 0x02a0)
			expo = 0x02a0;
		sd->exposure = setexposure(gspca_dev, expo);
		break;
	case SENSOR_MI0360:
	case SENSOR_MO4000:
		expo = sd->brightness >> 4;
		sd->exposure = setexposure(gspca_dev, expo);
		break;
	case SENSOR_OM6802:
		expo = sd->brightness >> 6;
		sd->exposure = setexposure(gspca_dev, expo);
		k2 = sd->brightness >> 11;
		break;
	}

	reg_w1(gspca_dev, 0x96, k2);
}

static void setcontrast(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	__u8 k2;
	__u8 contrast[] = { 0x00, 0x00, 0x28, 0x00, 0x07, 0x00 };

	k2 = sd->contrast;
	contrast[2] = k2;
	contrast[0] = (k2 + 1) >> 1;
	contrast[4] = (k2 + 1) / 5;
	reg_w(gspca_dev, 0x84, contrast, 6);
}

static void setcolors(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	__u8 data;
	int colour;

	colour = sd->colors - 128;
	if (colour > 0)
		data = (colour + 32) & 0x7f;	/* blue */
	else
		data = (-colour + 32) & 0x7f;	/* red */
	reg_w1(gspca_dev, 0x05, data);
}

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

	switch (sd->sensor) {
	case SENSOR_HV7131R:
	case SENSOR_MO4000:
	case SENSOR_MI0360:
		if (sd->autogain)
			sd->ag_cnt = AG_CNT_START;
		else
			sd->ag_cnt = -1;
		break;
	}
}

/* -- start the camera -- */
static void sd_start(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int i;
	__u8 reg1, reg17, reg18;
	const __u8 *sn9c1xx;
	int mode;
	static const __u8 C0[] = { 0x2d, 0x2d, 0x3a, 0x05, 0x04, 0x3f };
	static const __u8 CA[] = { 0x28, 0xd8, 0x14, 0xec };
	static const __u8 CE[] = { 0x32, 0xdd, 0x2d, 0xdd };	/* MI0360 */
	static const __u8 CE_ov76xx[] =
			{ 0x32, 0xdd, 0x32, 0xdd };	/* OV7630/48 */

	sn9c1xx = sn_tb[(int) sd->sensor];
	configure_gpio(gspca_dev, sn9c1xx);

/*	reg_w1(gspca_dev, 0x01, 0x44);		jfm from win trace*/
	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]);
	reg_w1(gspca_dev, 0xd2, 0x6a);		/* DC29 */
	reg_w1(gspca_dev, 0xd3, 0x50);
	reg_w1(gspca_dev, 0xc6, 0x00);
	reg_w1(gspca_dev, 0xc7, 0x00);
	reg_w1(gspca_dev, 0xc8, 0x50);
	reg_w1(gspca_dev, 0xc9, 0x3c);
	reg_w1(gspca_dev, 0x18, sn9c1xx[0x18]);
	switch (sd->sensor) {
	case SENSOR_OV7630:
		reg17 = 0xe2;
		break;
	case SENSOR_OV7648:
		reg17 = 0xae;
		break;
/*jfm: from win trace */
	case SENSOR_OV7660:
		reg17 = 0xa0;
		break;
	default:
		reg17 = 0x60;
		break;
	}
	reg_w1(gspca_dev, 0x17, reg17);
	reg_w1(gspca_dev, 0x05, sn9c1xx[5]);
	reg_w1(gspca_dev, 0x07, sn9c1xx[7]);
	reg_w1(gspca_dev, 0x06, sn9c1xx[6]);
	reg_w1(gspca_dev, 0x14, sn9c1xx[0x14]);
	switch (sd->bridge) {
	case BRIDGE_SN9C325:
		reg_w(gspca_dev, 0x20, regsn20_sn9c325,
				sizeof regsn20_sn9c325);
		for (i = 0; i < 8; i++)
			reg_w(gspca_dev, 0x84, reg84_sn9c325,
					sizeof reg84_sn9c325);
		reg_w1(gspca_dev, 0x9a, 0x0a);
		reg_w1(gspca_dev, 0x99, 0x60);
		break;
	default:
		reg_w(gspca_dev, 0x20, regsn20, sizeof regsn20);
		for (i = 0; i < 8; i++)
			reg_w(gspca_dev, 0x84, reg84, sizeof reg84);
		reg_w1(gspca_dev, 0x9a, 0x08);
		reg_w1(gspca_dev, 0x99, 0x59);
		break;
	}

	mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
	if (mode)
		reg1 = 0x46;	/* 320 clk 48Mhz */
	else
		reg1 = 0x06;	/* 640 clk 24Mz */
	reg17 = 0x61;
	switch (sd->sensor) {
	case SENSOR_HV7131R:
		hv7131R_InitSensor(gspca_dev);
		break;
	case SENSOR_MI0360:
		mi0360_InitSensor(gspca_dev);
		break;
	case SENSOR_MO4000:
		mo4000_InitSensor(gspca_dev);
		if (mode) {
/*			reg1 = 0x46;	 * 320 clk 48Mhz 60fp/s */
			reg1 = 0x06;	/* clk 24Mz */
		} else {
			reg17 = 0x22;	/* 640 MCKSIZE */
/*			reg1 = 0x06;	 * 640 clk 24Mz (done) */
		}
		break;
	case SENSOR_OM6802:
		om6802_InitSensor(gspca_dev);
		reg17 = 0x64;		/* 640 MCKSIZE */
		break;
	case SENSOR_OV7630:
		ov7630_InitSensor(gspca_dev);
		reg17 = 0xe2;
		reg1 = 0x40;
		break;
	case SENSOR_OV7648:
		ov7648_InitSensor(gspca_dev);
		reg17 = 0xa2;
		reg1 = 0x44;
/*		if (mode)
			;		 * 320x2...
		else
			;		 * 640x... */
		break;
	default:
/*	case SENSOR_OV7660: */
		ov7660_InitSensor(gspca_dev);
		if (mode) {
/*			reg17 = 0x21;	 * 320 */
/*			reg1 = 0x44; */
/*			reg1 = 0x46;	(done) */
		} else {
			reg17 = 0x22;	/* 640 MCKSIZE */
			reg1 = 0x06;
		}
		break;
	}
	reg_w(gspca_dev, 0xc0, C0, 6);
	reg_w(gspca_dev, 0xca, CA, 4);
	switch (sd->sensor) {
	case SENSOR_OV7630:
	case SENSOR_OV7648:
		reg_w(gspca_dev, 0xce, CE_ov76xx, 4);
		break;
	default:
		reg_w(gspca_dev, 0xce, CE, 4);
					/* ?? {0x1e, 0xdd, 0x2d, 0xe7} */
		break;
	}

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

	reg_w(gspca_dev, 0x100, qtable4, 0x40);
	reg_w(gspca_dev, 0x140, qtable4 + 0x40, 0x40);

	reg_w1(gspca_dev, 0x18, reg18);

	reg_w1(gspca_dev, 0x17, reg17);
	reg_w1(gspca_dev, 0x01, reg1);
	setbrightness(gspca_dev);
	setcontrast(gspca_dev);
	setautogain(gspca_dev);
}

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 };
	__u8 data;
	const __u8 *sn9c1xx;

	data = 0x0b;
	switch (sd->sensor) {
	case SENSOR_HV7131R:
		i2c_w8(gspca_dev, stophv7131);
		data = 0x2b;
		break;
	case SENSOR_MI0360:
		i2c_w8(gspca_dev, stopmi0360);
		data = 0x29;
		break;
	case SENSOR_OV7630:
	case SENSOR_OV7648:
		data = 0x29;
		break;
	default:
/*	case SENSOR_MO4000: */
/*	case SENSOR_OV7660: */
		break;
	}
	sn9c1xx = sn_tb[(int) sd->sensor];
	reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
	reg_w1(gspca_dev, 0x17, sn9c1xx[0x17]);
	reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
	reg_w1(gspca_dev, 0x01, data);
	reg_w1(gspca_dev, 0xf1, 0x01);
}

static void sd_stop0(struct gspca_dev *gspca_dev)
{
}

static void sd_close(struct gspca_dev *gspca_dev)
{
}

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);
	PDEBUG(D_FRAM, "mean lum %d", delta);
	if (delta < luma_mean - luma_delta ||
	    delta > luma_mean + luma_delta) {
		switch (sd->sensor) {
		case SENSOR_HV7131R:
			expotimes = sd->exposure >> 8;
			expotimes += (luma_mean - delta) >> 4;
			if (expotimes < 0)
				expotimes = 0;
			sd->exposure = setexposure(gspca_dev,
					(unsigned int) (expotimes << 8));
			break;
		default:
/*		case SENSOR_MO4000: */
/*		case SENSOR_MI0360: */
/*		case SENSOR_OM6802: */
			expotimes = sd->exposure;
			expotimes += (luma_mean - delta) >> 6;
			if (expotimes < 0)
				expotimes = 0;
			sd->exposure = setexposure(gspca_dev,
						   (unsigned int) expotimes);
			setcolors(gspca_dev);
			break;
		}
	}
}

/* scan the URB packets */
/* This function is run at interrupt level. */
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
			struct gspca_frame *frame,	/* target */
			__u8 *data,			/* isoc packet */
			int len)			/* iso packet length */
{
	struct sd *sd = (struct sd *) gspca_dev;
	int sof, avg_lum;

	sof = len - 64;
	if (sof >= 0 && data[sof] == 0xff && data[sof + 1] == 0xd9) {

		/* end of frame */
		gspca_frame_add(gspca_dev, LAST_PACKET,
				frame, data, sof + 2);
		if (sd->ag_cnt < 0)
			return;
/* w1 w2 w3 */
/* w4 w5 w6 */
/* w7 w8 */
/* w4 */
		avg_lum = ((data[sof + 29] << 8) | data[sof + 30]) >> 6;
/* w6 */
		avg_lum += ((data[sof + 33] << 8) | data[sof + 34]) >> 6;
/* w2 */
		avg_lum += ((data[sof + 25] << 8) | data[sof + 26]) >> 6;
/* w8 */
		avg_lum += ((data[sof + 37] << 8) | data[sof + 38]) >> 6;
/* w5 */
		avg_lum += ((data[sof + 31] << 8) | data[sof + 32]) >> 4;
		avg_lum >>= 4;
		atomic_set(&sd->avg_lum, avg_lum);
		return;
	}
	if (gspca_dev->last_packet_type == LAST_PACKET) {

		/* put the JPEG 422 header */
		jpeg_put_header(gspca_dev, frame, sd->qindex, 0x21);
	}
	gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}

static unsigned int getexposure(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	__u8 hexpo, mexpo, lexpo;

	switch (sd->sensor) {
	case SENSOR_HV7131R:
		/* read sensor exposure */
		i2c_r5(gspca_dev, 0x25);
		return (gspca_dev->usb_buf[0] << 16)
			| (gspca_dev->usb_buf[1] << 8)
			| gspca_dev->usb_buf[2];
	case SENSOR_MI0360:
		/* read sensor exposure */
		i2c_r5(gspca_dev, 0x09);
		return (gspca_dev->usb_buf[0] << 8)
			| gspca_dev->usb_buf[1];
	default:
/*	case SENSOR_MO4000: */
		i2c_r5(gspca_dev, 0x0e);
		hexpo = 0;		/* gspca_dev->usb_buf[1] & 0x07; */
		mexpo = 0x40;		/* gspca_dev->usb_buf[2] & 0xff; */
		lexpo = (gspca_dev->usb_buf[1] & 0x30) >> 4;
		PDEBUG(D_CONF, "exposure %d",
			(hexpo << 10) | (mexpo << 2) | lexpo);
		return (hexpo << 10) | (mexpo << 2) | lexpo;
#if 0
/*jfm: not called*/
/*	case SENSOR_OV7648:		* jfm: is it ok for 7648? */
/*	case SENSOR_OV7660: */
		/* read sensor exposure */
		i2c_r5(gspca_dev, 0x04);
		hexpo = gspca_dev->usb_buf[3] & 0x2f;
		lexpo = gspca_dev->usb_buf[0] & 0x02;
		i2c_r5(gspca_dev, 0x08);
		mexpo = gspca_dev->usb_buf[2];
		return (hexpo << 10) | (mexpo << 2) | lexpo;
#endif
	}
	/* not reached */
}

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

	/* hardcoded registers seem not readable */
	switch (sd->sensor) {
	case SENSOR_HV7131R:
		sd->brightness = getexposure(gspca_dev) >> 4;
		break;
	case SENSOR_MI0360:
	case SENSOR_MO4000:
	case SENSOR_OM6802:
		sd->brightness = getexposure(gspca_dev) << 4;
		break;
	}
}

static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->brightness = val;
	if (gspca_dev->streaming)
		setbrightness(gspca_dev);
	return 0;
}

static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	getbrightness(gspca_dev);
	*val = sd->brightness;
	return 0;
}

static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->contrast = val;
	if (gspca_dev->streaming)
		setcontrast(gspca_dev);
	return 0;
}

static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->contrast;
	return 0;
}

static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->colors = val;
	if (gspca_dev->streaming)
		setcolors(gspca_dev);
	return 0;
}

static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->colors;
	return 0;
}

static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->autogain = val;
	if (gspca_dev->streaming)
		setautogain(gspca_dev);
	return 0;
}

static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->autogain;
	return 0;
}

/* sub-driver description */
static const struct sd_desc sd_desc = {
	.name = MODULE_NAME,
	.ctrls = sd_ctrls,
	.nctrls = ARRAY_SIZE(sd_ctrls),
	.config = sd_config,
	.open = sd_open,
	.start = sd_start,
	.stopN = sd_stopN,
	.stop0 = sd_stop0,
	.close = sd_close,
	.pkt_scan = sd_pkt_scan,
	.dq_callback = do_autogain,
};

/* -- module initialisation -- */
#define BSI(bridge, sensor, i2c_addr) \
	.driver_info = (BRIDGE_ ## bridge << 16) \
			| (SENSOR_ ## sensor << 8) \
			| (i2c_addr)
static const __devinitdata struct usb_device_id device_table[] = {
#ifndef CONFIG_USB_SN9C102
	{USB_DEVICE(0x0458, 0x7025), BSI(SN9C120, MI0360, 0x5d)},
	{USB_DEVICE(0x045e, 0x00f5), BSI(SN9C105, OV7660, 0x21)},
	{USB_DEVICE(0x045e, 0x00f7), BSI(SN9C105, OV7660, 0x21)},
	{USB_DEVICE(0x0471, 0x0327), BSI(SN9C105, MI0360, 0x5d)},
	{USB_DEVICE(0x0471, 0x0328), BSI(SN9C105, MI0360, 0x5d)},
#endif
	{USB_DEVICE(0x0471, 0x0330), BSI(SN9C105, MI0360, 0x5d)},
	{USB_DEVICE(0x0c45, 0x6040), BSI(SN9C102P, HV7131R, 0x11)},
/* bw600.inf:
	{USB_DEVICE(0x0c45, 0x6040), BSI(SN9C102P, MI0360, 0x5d)}, */
/*	{USB_DEVICE(0x0c45, 0x603a), BSI(SN9C102P, OV7648, 0x??)}, */
/*	{USB_DEVICE(0x0c45, 0x607a), BSI(SN9C102P, OV7648, 0x??)}, */
	{USB_DEVICE(0x0c45, 0x607c), BSI(SN9C102P, HV7131R, 0x11)},
/*	{USB_DEVICE(0x0c45, 0x607e), BSI(SN9C102P, OV7630, 0x??)}, */
	{USB_DEVICE(0x0c45, 0x60c0), BSI(SN9C105, MI0360, 0x5d)},
/*	{USB_DEVICE(0x0c45, 0x60c8), BSI(SN9C105, OM6801, 0x??)}, */
/*	{USB_DEVICE(0x0c45, 0x60cc), BSI(SN9C105, HV7131GP, 0x??)}, */
	{USB_DEVICE(0x0c45, 0x60ec), BSI(SN9C105, MO4000, 0x21)},
/*	{USB_DEVICE(0x0c45, 0x60ef), BSI(SN9C105, ICM105C, 0x??)}, */
/*	{USB_DEVICE(0x0c45, 0x60fa), BSI(SN9C105, OV7648, 0x??)}, */
	{USB_DEVICE(0x0c45, 0x60fb), BSI(SN9C105, OV7660, 0x21)},
	{USB_DEVICE(0x0c45, 0x60fc), BSI(SN9C105, HV7131R, 0x11)},
/*	{USB_DEVICE(0x0c45, 0x60fe), BSI(SN9C105, OV7630, 0x??)}, */
/*	{USB_DEVICE(0x0c45, 0x6108), BSI(SN9C120, OM6801, 0x??)}, */
/*	{USB_DEVICE(0x0c45, 0x6122), BSI(SN9C110, ICM105C, 0x??)}, */
/*	{USB_DEVICE(0x0c45, 0x6123), BSI(SN9C110, SanyoCCD, 0x??)}, */
	{USB_DEVICE(0x0c45, 0x6128), BSI(SN9C110, OM6802, 0x21)}, /*sn9c325?*/
/*bw600.inf:*/
	{USB_DEVICE(0x0c45, 0x612a), BSI(SN9C110, OV7648, 0x21)}, /*sn9c325?*/
	{USB_DEVICE(0x0c45, 0x612c), BSI(SN9C110, MO4000, 0x21)},
	{USB_DEVICE(0x0c45, 0x612e), BSI(SN9C110, OV7630, 0x21)},
/*	{USB_DEVICE(0x0c45, 0x612f), BSI(SN9C110, ICM105C, 0x??)}, */
#ifndef CONFIG_USB_SN9C102
	{USB_DEVICE(0x0c45, 0x6130), BSI(SN9C120, MI0360, 0x5d)},
	{USB_DEVICE(0x0c45, 0x6138), BSI(SN9C120, MO4000, 0x21)},
/*	{USB_DEVICE(0x0c45, 0x613a), BSI(SN9C120, OV7648, 0x??)}, */
	{USB_DEVICE(0x0c45, 0x613b), BSI(SN9C120, OV7660, 0x21)},
	{USB_DEVICE(0x0c45, 0x613c), BSI(SN9C120, HV7131R, 0x11)},
/*	{USB_DEVICE(0x0c45, 0x613e), BSI(SN9C120, OV7630, 0x??)}, */
#endif
	{USB_DEVICE(0x0c45, 0x6143), BSI(SN9C120, MI0360, 0x5d)},
	{}
};
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,
};

/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
	if (usb_register(&sd_driver) < 0)
		return -1;
	info("registered");
	return 0;
}
static void __exit sd_mod_exit(void)
{
	usb_deregister(&sd_driver);
	info("deregistered");
}

module_init(sd_mod_init);
module_exit(sd_mod_exit);