/*
 *              Connexant Cx11646 library
 *              Copyright (C) 2004 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define MODULE_NAME "conex"

#include "gspca.h"
#define CONEX_CAM 1             /* special JPEG header */
#include "jpeg.h"

MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
MODULE_DESCRIPTION("GSPCA USB Conexant Camera Driver");
MODULE_LICENSE("GPL");

#define QUALITY 50

/* specific webcam descriptor */
struct sd {
        struct gspca_dev gspca_dev;     /* !! must be the first item */
        struct v4l2_ctrl *brightness;
        struct v4l2_ctrl *contrast;
        struct v4l2_ctrl *sat;

        u8 jpeg_hdr[JPEG_HDR_SZ];
};

static const struct v4l2_pix_format vga_mode[] = {
        {176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 176,
                .sizeimage = 176 * 144 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG,
                .priv = 3},
        {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 320,
                .sizeimage = 320 * 240 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG,
                .priv = 2},
        {352, 288, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 352,
                .sizeimage = 352 * 288 * 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},
};

/* the read bytes are found in gspca_dev->usb_buf */
static void reg_r(struct gspca_dev *gspca_dev,
                  __u16 index,
                  __u16 len)
{
        struct usb_device *dev = gspca_dev->dev;

        if (len > USB_BUF_SZ) {
                PERR("reg_r: buffer overflow\n");
                return;
        }

        usb_control_msg(dev,
                        usb_rcvctrlpipe(dev, 0),
                        0,
                        USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                        0,
                        index, gspca_dev->usb_buf, len,
                        500);
        PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
                        index, gspca_dev->usb_buf[0]);
}

/* the bytes to write are in gspca_dev->usb_buf */
static void reg_w_val(struct gspca_dev *gspca_dev,
                        __u16 index,
                        __u8 val)
{
        struct usb_device *dev = gspca_dev->dev;

        gspca_dev->usb_buf[0] = val;
        usb_control_msg(dev,
                        usb_sndctrlpipe(dev, 0),
                        0,
                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                        0,
                        index, gspca_dev->usb_buf, 1, 500);
}

static void reg_w(struct gspca_dev *gspca_dev,
                  __u16 index,
                  const __u8 *buffer,
                  __u16 len)
{
        struct usb_device *dev = gspca_dev->dev;

        if (len > USB_BUF_SZ) {
                PERR("reg_w: buffer overflow\n");
                return;
        }
        PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);

        memcpy(gspca_dev->usb_buf, buffer, len);
        usb_control_msg(dev,
                        usb_sndctrlpipe(dev, 0),
                        0,
                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                        0,
                        index, gspca_dev->usb_buf, len, 500);
}

static const __u8 cx_sensor_init[][4] = {
        {0x88, 0x11, 0x01, 0x01},
        {0x88, 0x12, 0x70, 0x01},
        {0x88, 0x0f, 0x00, 0x01},
        {0x88, 0x05, 0x01, 0x01},
        {}
};

static const __u8 cx11646_fw1[][3] = {
        {0x00, 0x02, 0x00},
        {0x01, 0x43, 0x00},
        {0x02, 0xA7, 0x00},
        {0x03, 0x8B, 0x01},
        {0x04, 0xE9, 0x02},
        {0x05, 0x08, 0x04},
        {0x06, 0x08, 0x05},
        {0x07, 0x07, 0x06},
        {0x08, 0xE7, 0x06},
        {0x09, 0xC6, 0x07},
        {0x0A, 0x86, 0x08},
        {0x0B, 0x46, 0x09},
        {0x0C, 0x05, 0x0A},
        {0x0D, 0xA5, 0x0A},
        {0x0E, 0x45, 0x0B},
        {0x0F, 0xE5, 0x0B},
        {0x10, 0x85, 0x0C},
        {0x11, 0x25, 0x0D},
        {0x12, 0xC4, 0x0D},
        {0x13, 0x45, 0x0E},
        {0x14, 0xE4, 0x0E},
        {0x15, 0x64, 0x0F},
        {0x16, 0xE4, 0x0F},
        {0x17, 0x64, 0x10},
        {0x18, 0xE4, 0x10},
        {0x19, 0x64, 0x11},
        {0x1A, 0xE4, 0x11},
        {0x1B, 0x64, 0x12},
        {0x1C, 0xE3, 0x12},
        {0x1D, 0x44, 0x13},
        {0x1E, 0xC3, 0x13},
        {0x1F, 0x24, 0x14},
        {0x20, 0xA3, 0x14},
        {0x21, 0x04, 0x15},
        {0x22, 0x83, 0x15},
        {0x23, 0xE3, 0x15},
        {0x24, 0x43, 0x16},
        {0x25, 0xA4, 0x16},
        {0x26, 0x23, 0x17},
        {0x27, 0x83, 0x17},
        {0x28, 0xE3, 0x17},
        {0x29, 0x43, 0x18},
        {0x2A, 0xA3, 0x18},
        {0x2B, 0x03, 0x19},
        {0x2C, 0x63, 0x19},
        {0x2D, 0xC3, 0x19},
        {0x2E, 0x22, 0x1A},
        {0x2F, 0x63, 0x1A},
        {0x30, 0xC3, 0x1A},
        {0x31, 0x23, 0x1B},
        {0x32, 0x83, 0x1B},
        {0x33, 0xE2, 0x1B},
        {0x34, 0x23, 0x1C},
        {0x35, 0x83, 0x1C},
        {0x36, 0xE2, 0x1C},
        {0x37, 0x23, 0x1D},
        {0x38, 0x83, 0x1D},
        {0x39, 0xE2, 0x1D},
        {0x3A, 0x23, 0x1E},
        {0x3B, 0x82, 0x1E},
        {0x3C, 0xC3, 0x1E},
        {0x3D, 0x22, 0x1F},
        {0x3E, 0x63, 0x1F},
        {0x3F, 0xC1, 0x1F},
        {}
};
static void cx11646_fw(struct gspca_dev*gspca_dev)
{
        int i = 0;

        reg_w_val(gspca_dev, 0x006a, 0x02);
        while (cx11646_fw1[i][1]) {
                reg_w(gspca_dev, 0x006b, cx11646_fw1[i], 3);
                i++;
        }
        reg_w_val(gspca_dev, 0x006a, 0x00);
}

static const __u8 cxsensor[] = {
        0x88, 0x12, 0x70, 0x01,
        0x88, 0x0d, 0x02, 0x01,
        0x88, 0x0f, 0x00, 0x01,
        0x88, 0x03, 0x71, 0x01, 0x88, 0x04, 0x00, 0x01, /* 3 */
        0x88, 0x02, 0x10, 0x01,
        0x88, 0x00, 0xD4, 0x01, 0x88, 0x01, 0x01, 0x01, /* 5 */
        0x88, 0x0B, 0x00, 0x01,
        0x88, 0x0A, 0x0A, 0x01,
        0x88, 0x00, 0x08, 0x01, 0x88, 0x01, 0x00, 0x01, /* 8 */
        0x88, 0x05, 0x01, 0x01,
        0xA1, 0x18, 0x00, 0x01,
        0x00
};

static const __u8 reg20[] = { 0x10, 0x42, 0x81, 0x19, 0xd3, 0xff, 0xa7, 0xff };
static const __u8 reg28[] = { 0x87, 0x00, 0x87, 0x00, 0x8f, 0xff, 0xea, 0xff };
static const __u8 reg10[] = { 0xb1, 0xb1 };
static const __u8 reg71a[] = { 0x08, 0x18, 0x0a, 0x1e };        /* 640 */
static const __u8 reg71b[] = { 0x04, 0x0c, 0x05, 0x0f };
        /* 352{0x04,0x0a,0x06,0x12}; //352{0x05,0x0e,0x06,0x11}; //352 */
static const __u8 reg71c[] = { 0x02, 0x07, 0x03, 0x09 };
                                        /* 320{0x04,0x0c,0x05,0x0f}; //320 */
static const __u8 reg71d[] = { 0x02, 0x07, 0x03, 0x09 };        /* 176 */
static const __u8 reg7b[] = { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff };

static void cx_sensor(struct gspca_dev*gspca_dev)
{
        int i = 0;
        int length;
        const __u8 *ptsensor = cxsensor;

        reg_w(gspca_dev, 0x0020, reg20, 8);
        reg_w(gspca_dev, 0x0028, reg28, 8);
        reg_w(gspca_dev, 0x0010, reg10, 2);
        reg_w_val(gspca_dev, 0x0092, 0x03);

        switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
        case 0:
                reg_w(gspca_dev, 0x0071, reg71a, 4);
                break;
        case 1:
                reg_w(gspca_dev, 0x0071, reg71b, 4);
                break;
        default:
/*      case 2: */
                reg_w(gspca_dev, 0x0071, reg71c, 4);
                break;
        case 3:
                reg_w(gspca_dev, 0x0071, reg71d, 4);
                break;
        }
        reg_w(gspca_dev, 0x007b, reg7b, 6);
        reg_w_val(gspca_dev, 0x00f8, 0x00);
        reg_w(gspca_dev, 0x0010, reg10, 2);
        reg_w_val(gspca_dev, 0x0098, 0x41);
        for (i = 0; i < 11; i++) {
                if (i == 3 || i == 5 || i == 8)
                        length = 8;
                else
                        length = 4;
                reg_w(gspca_dev, 0x00e5, ptsensor, length);
                if (length == 4)
                        reg_r(gspca_dev, 0x00e8, 1);
                else
                        reg_r(gspca_dev, 0x00e8, length);
                ptsensor += length;
        }
        reg_r(gspca_dev, 0x00e7, 8);
}

static const __u8 cx_inits_176[] = {
        0x33, 0x81, 0xB0, 0x00, 0x90, 0x00, 0x0A, 0x03, /* 176x144 */
        0x00, 0x03, 0x03, 0x03, 0x1B, 0x05, 0x30, 0x03,
        0x65, 0x15, 0x18, 0x25, 0x03, 0x25, 0x08, 0x30,
        0x3B, 0x25, 0x10, 0x00, 0x04, 0x00, 0x00, 0x00,
        0xDC, 0xFF, 0xEE, 0xFF, 0xC5, 0xFF, 0xBF, 0xFF,
        0xF7, 0xFF, 0x88, 0xFF, 0x66, 0x02, 0x28, 0x02,
        0x1E, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const __u8 cx_inits_320[] = {
        0x7f, 0x7f, 0x40, 0x01, 0xf0, 0x00, 0x02, 0x01,
        0x00, 0x01, 0x01, 0x01, 0x10, 0x00, 0x02, 0x01,
        0x65, 0x45, 0xfa, 0x4c, 0x2c, 0xdf, 0xb9, 0x81,
        0x30, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
        0xe2, 0xff, 0xf1, 0xff, 0xc2, 0xff, 0xbc, 0xff,
        0xf5, 0xff, 0x6d, 0xff, 0xf6, 0x01, 0x43, 0x02,
        0xd3, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const __u8 cx_inits_352[] = {
        0x2e, 0x7c, 0x60, 0x01, 0x20, 0x01, 0x05, 0x03,
        0x00, 0x06, 0x03, 0x06, 0x1b, 0x10, 0x05, 0x3b,
        0x30, 0x25, 0x18, 0x25, 0x08, 0x30, 0x03, 0x25,
        0x3b, 0x30, 0x25, 0x1b, 0x10, 0x05, 0x00, 0x00,
        0xe3, 0xff, 0xf1, 0xff, 0xc2, 0xff, 0xbc, 0xff,
        0xf5, 0xff, 0x6b, 0xff, 0xee, 0x01, 0x43, 0x02,
        0xe4, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const __u8 cx_inits_640[] = {
        0x7e, 0x7e, 0x80, 0x02, 0xe0, 0x01, 0x01, 0x01,
        0x00, 0x02, 0x01, 0x02, 0x10, 0x30, 0x01, 0x01,
        0x65, 0x45, 0xf7, 0x52, 0x2c, 0xdf, 0xb9, 0x81,
        0x30, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
        0xe2, 0xff, 0xf1, 0xff, 0xc2, 0xff, 0xbc, 0xff,
        0xf6, 0xff, 0x7b, 0xff, 0x01, 0x02, 0x43, 0x02,
        0x77, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

static void cx11646_initsize(struct gspca_dev *gspca_dev)
{
        const __u8 *cxinit;
        static const __u8 reg12[] = { 0x08, 0x05, 0x07, 0x04, 0x24 };
        static const __u8 reg17[] =
                        { 0x0a, 0x00, 0xf2, 0x01, 0x0f, 0x00, 0x97, 0x02 };

        switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
        case 0:
                cxinit = cx_inits_640;
                break;
        case 1:
                cxinit = cx_inits_352;
                break;
        default:
/*      case 2: */
                cxinit = cx_inits_320;
                break;
        case 3:
                cxinit = cx_inits_176;
                break;
        }
        reg_w_val(gspca_dev, 0x009a, 0x01);
        reg_w_val(gspca_dev, 0x0010, 0x10);
        reg_w(gspca_dev, 0x0012, reg12, 5);
        reg_w(gspca_dev, 0x0017, reg17, 8);
        reg_w_val(gspca_dev, 0x00c0, 0x00);
        reg_w_val(gspca_dev, 0x00c1, 0x04);
        reg_w_val(gspca_dev, 0x00c2, 0x04);

        reg_w(gspca_dev, 0x0061, cxinit, 8);
        cxinit += 8;
        reg_w(gspca_dev, 0x00ca, cxinit, 8);
        cxinit += 8;
        reg_w(gspca_dev, 0x00d2, cxinit, 8);
        cxinit += 8;
        reg_w(gspca_dev, 0x00da, cxinit, 6);
        cxinit += 8;
        reg_w(gspca_dev, 0x0041, cxinit, 8);
        cxinit += 8;
        reg_w(gspca_dev, 0x0049, cxinit, 8);
        cxinit += 8;
        reg_w(gspca_dev, 0x0051, cxinit, 2);

        reg_r(gspca_dev, 0x0010, 1);
}

static const __u8 cx_jpeg_init[][8] = {
        {0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x15},       /* 1 */
        {0x0f, 0x10, 0x12, 0x10, 0x0d, 0x15, 0x12, 0x11},
        {0x12, 0x18, 0x16, 0x15, 0x19, 0x20, 0x35, 0x22},
        {0x20, 0x1d, 0x1d, 0x20, 0x41, 0x2e, 0x31, 0x26},
        {0x35, 0x4d, 0x43, 0x51, 0x4f, 0x4b, 0x43, 0x4a},
        {0x49, 0x55, 0x5F, 0x79, 0x67, 0x55, 0x5A, 0x73},
        {0x5B, 0x49, 0x4A, 0x6A, 0x90, 0x6B, 0x73, 0x7D},
        {0x81, 0x88, 0x89, 0x88, 0x52, 0x66, 0x95, 0xA0},
        {0x94, 0x84, 0x9E, 0x79, 0x85, 0x88, 0x83, 0x01},
        {0x15, 0x0F, 0x10, 0x12, 0x10, 0x0D, 0x15, 0x12},
        {0x11, 0x12, 0x18, 0x16, 0x15, 0x19, 0x20, 0x35},
        {0x22, 0x20, 0x1D, 0x1D, 0x20, 0x41, 0x2E, 0x31},
        {0x26, 0x35, 0x4D, 0x43, 0x51, 0x4F, 0x4B, 0x43},
        {0x4A, 0x49, 0x55, 0x5F, 0x79, 0x67, 0x55, 0x5A},
        {0x73, 0x5B, 0x49, 0x4A, 0x6A, 0x90, 0x6B, 0x73},
        {0x7D, 0x81, 0x88, 0x89, 0x88, 0x52, 0x66, 0x95},
        {0xA0, 0x94, 0x84, 0x9E, 0x79, 0x85, 0x88, 0x83},
        {0xFF, 0xC4, 0x01, 0xA2, 0x00, 0x00, 0x01, 0x05},
        {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00},
        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02},
        {0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A},
        {0x0B, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01},
        {0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00},
        {0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05},
        {0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x10, 0x00},
        {0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05},
        {0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01},
        {0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21},
        {0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22},
        {0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23},
        {0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24},
        {0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17},
        {0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29},
        {0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A},
        {0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A},
        {0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A},
        {0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A},
        {0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A},
        {0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A},
        {0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99},
        {0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8},
        {0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7},
        {0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6},
        {0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5},
        {0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3},
        {0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1},
        {0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9},
        {0xFA, 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04},
        {0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01},
        {0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04},
        {0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07},
        {0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14},
        {0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33},
        {0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16},
        {0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19},
        {0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36},
        {0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46},
        {0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56},
        {0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66},
        {0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76},
        {0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85},
        {0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94},
        {0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3},
        {0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2},
        {0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA},
        {0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9},
        {0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8},
        {0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7},
        {0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6},
        {0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0x20, 0x00, 0x1F},
        {0x02, 0x0C, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00},
        {0x00, 0x00, 0x11, 0x00, 0x11, 0x22, 0x00, 0x22},
        {0x22, 0x11, 0x22, 0x22, 0x11, 0x33, 0x33, 0x11},
        {0x44, 0x66, 0x22, 0x55, 0x66, 0xFF, 0xDD, 0x00},
        {0x04, 0x00, 0x14, 0xFF, 0xC0, 0x00, 0x11, 0x08},
        {0x00, 0xF0, 0x01, 0x40, 0x03, 0x00, 0x21, 0x00},
        {0x01, 0x11, 0x01, 0x02, 0x11, 0x01, 0xFF, 0xDA},
        {0x00, 0x0C, 0x03, 0x00, 0x00, 0x01, 0x11, 0x02},
        {0x11, 0x00, 0x3F, 0x00, 0xFF, 0xD9, 0x00, 0x00}        /* 79 */
};


static const __u8 cxjpeg_640[][8] = {
        {0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x10},       /* 1 */
        {0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d},
        {0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, 0x1a},
        {0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, 0x1d},
        {0x28, 0x3a, 0x33, 0x3D, 0x3C, 0x39, 0x33, 0x38},
        {0x37, 0x40, 0x48, 0x5C, 0x4E, 0x40, 0x44, 0x57},
        {0x45, 0x37, 0x38, 0x50, 0x6D, 0x51, 0x57, 0x5F},
        {0x62, 0x67, 0x68, 0x67, 0x3E, 0x4D, 0x71, 0x79},
        {0x70, 0x64, 0x78, 0x5C, 0x65, 0x67, 0x63, 0x01},
        {0x10, 0x0B, 0x0C, 0x0E, 0x0C, 0x0A, 0x10, 0x0E},
        {0x0D, 0x0E, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28},
        {0x1A, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25},
        {0x1D, 0x28, 0x3A, 0x33, 0x3D, 0x3C, 0x39, 0x33},
        {0x38, 0x37, 0x40, 0x48, 0x5C, 0x4E, 0x40, 0x44},
        {0x57, 0x45, 0x37, 0x38, 0x50, 0x6D, 0x51, 0x57},
        {0x5F, 0x62, 0x67, 0x68, 0x67, 0x3E, 0x4D, 0x71},
        {0x79, 0x70, 0x64, 0x78, 0x5C, 0x65, 0x67, 0x63},
        {0xFF, 0x20, 0x00, 0x1F, 0x00, 0x83, 0x00, 0x00},
        {0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00},
        {0x11, 0x22, 0x00, 0x22, 0x22, 0x11, 0x22, 0x22},
        {0x11, 0x33, 0x33, 0x11, 0x44, 0x66, 0x22, 0x55},
        {0x66, 0xFF, 0xDD, 0x00, 0x04, 0x00, 0x28, 0xFF},
        {0xC0, 0x00, 0x11, 0x08, 0x01, 0xE0, 0x02, 0x80},
        {0x03, 0x00, 0x21, 0x00, 0x01, 0x11, 0x01, 0x02},
        {0x11, 0x01, 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x00},
        {0x00, 0x01, 0x11, 0x02, 0x11, 0x00, 0x3F, 0x00},
        {0xFF, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}        /* 27 */
};
static const __u8 cxjpeg_352[][8] = {
        {0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x0d},
        {0x09, 0x09, 0x0b, 0x09, 0x08, 0x0D, 0x0b, 0x0a},
        {0x0b, 0x0e, 0x0d, 0x0d, 0x0f, 0x13, 0x1f, 0x14},
        {0x13, 0x11, 0x11, 0x13, 0x26, 0x1b, 0x1d, 0x17},
        {0x1F, 0x2D, 0x28, 0x30, 0x2F, 0x2D, 0x28, 0x2C},
        {0x2B, 0x32, 0x38, 0x48, 0x3D, 0x32, 0x35, 0x44},
        {0x36, 0x2B, 0x2C, 0x3F, 0x55, 0x3F, 0x44, 0x4A},
        {0x4D, 0x50, 0x51, 0x50, 0x30, 0x3C, 0x58, 0x5F},
        {0x58, 0x4E, 0x5E, 0x48, 0x4F, 0x50, 0x4D, 0x01},
        {0x0D, 0x09, 0x09, 0x0B, 0x09, 0x08, 0x0D, 0x0B},
        {0x0A, 0x0B, 0x0E, 0x0D, 0x0D, 0x0F, 0x13, 0x1F},
        {0x14, 0x13, 0x11, 0x11, 0x13, 0x26, 0x1B, 0x1D},
        {0x17, 0x1F, 0x2D, 0x28, 0x30, 0x2F, 0x2D, 0x28},
        {0x2C, 0x2B, 0x32, 0x38, 0x48, 0x3D, 0x32, 0x35},
        {0x44, 0x36, 0x2B, 0x2C, 0x3F, 0x55, 0x3F, 0x44},
        {0x4A, 0x4D, 0x50, 0x51, 0x50, 0x30, 0x3C, 0x58},
        {0x5F, 0x58, 0x4E, 0x5E, 0x48, 0x4F, 0x50, 0x4D},
        {0xFF, 0x20, 0x00, 0x1F, 0x01, 0x83, 0x00, 0x00},
        {0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00},
        {0x11, 0x22, 0x00, 0x22, 0x22, 0x11, 0x22, 0x22},
        {0x11, 0x33, 0x33, 0x11, 0x44, 0x66, 0x22, 0x55},
        {0x66, 0xFF, 0xDD, 0x00, 0x04, 0x00, 0x16, 0xFF},
        {0xC0, 0x00, 0x11, 0x08, 0x01, 0x20, 0x01, 0x60},
        {0x03, 0x00, 0x21, 0x00, 0x01, 0x11, 0x01, 0x02},
        {0x11, 0x01, 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x00},
        {0x00, 0x01, 0x11, 0x02, 0x11, 0x00, 0x3F, 0x00},
        {0xFF, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
};
static const __u8 cxjpeg_320[][8] = {
        {0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x05},
        {0x03, 0x04, 0x04, 0x04, 0x03, 0x05, 0x04, 0x04},
        {0x04, 0x05, 0x05, 0x05, 0x06, 0x07, 0x0c, 0x08},
        {0x07, 0x07, 0x07, 0x07, 0x0f, 0x0b, 0x0b, 0x09},
        {0x0C, 0x11, 0x0F, 0x12, 0x12, 0x11, 0x0f, 0x11},
        {0x11, 0x13, 0x16, 0x1C, 0x17, 0x13, 0x14, 0x1A},
        {0x15, 0x11, 0x11, 0x18, 0x21, 0x18, 0x1A, 0x1D},
        {0x1D, 0x1F, 0x1F, 0x1F, 0x13, 0x17, 0x22, 0x24},
        {0x22, 0x1E, 0x24, 0x1C, 0x1E, 0x1F, 0x1E, 0x01},
        {0x05, 0x03, 0x04, 0x04, 0x04, 0x03, 0x05, 0x04},
        {0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x07, 0x0C},
        {0x08, 0x07, 0x07, 0x07, 0x07, 0x0F, 0x0B, 0x0B},
        {0x09, 0x0C, 0x11, 0x0F, 0x12, 0x12, 0x11, 0x0F},
        {0x11, 0x11, 0x13, 0x16, 0x1C, 0x17, 0x13, 0x14},
        {0x1A, 0x15, 0x11, 0x11, 0x18, 0x21, 0x18, 0x1A},
        {0x1D, 0x1D, 0x1F, 0x1F, 0x1F, 0x13, 0x17, 0x22},
        {0x24, 0x22, 0x1E, 0x24, 0x1C, 0x1E, 0x1F, 0x1E},
        {0xFF, 0x20, 0x00, 0x1F, 0x02, 0x0C, 0x00, 0x00},
        {0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00},
        {0x11, 0x22, 0x00, 0x22, 0x22, 0x11, 0x22, 0x22},
        {0x11, 0x33, 0x33, 0x11, 0x44, 0x66, 0x22, 0x55},
        {0x66, 0xFF, 0xDD, 0x00, 0x04, 0x00, 0x14, 0xFF},
        {0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01, 0x40},
        {0x03, 0x00, 0x21, 0x00, 0x01, 0x11, 0x01, 0x02},
        {0x11, 0x01, 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x00},
        {0x00, 0x01, 0x11, 0x02, 0x11, 0x00, 0x3F, 0x00},
        {0xFF, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}        /* 27 */
};
static const __u8 cxjpeg_176[][8] = {
        {0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x0d},
        {0x09, 0x09, 0x0B, 0x09, 0x08, 0x0D, 0x0B, 0x0A},
        {0x0B, 0x0E, 0x0D, 0x0D, 0x0F, 0x13, 0x1F, 0x14},
        {0x13, 0x11, 0x11, 0x13, 0x26, 0x1B, 0x1D, 0x17},
        {0x1F, 0x2D, 0x28, 0x30, 0x2F, 0x2D, 0x28, 0x2C},
        {0x2B, 0x32, 0x38, 0x48, 0x3D, 0x32, 0x35, 0x44},
        {0x36, 0x2B, 0x2C, 0x3F, 0x55, 0x3F, 0x44, 0x4A},
        {0x4D, 0x50, 0x51, 0x50, 0x30, 0x3C, 0x58, 0x5F},
        {0x58, 0x4E, 0x5E, 0x48, 0x4F, 0x50, 0x4D, 0x01},
        {0x0D, 0x09, 0x09, 0x0B, 0x09, 0x08, 0x0D, 0x0B},
        {0x0A, 0x0B, 0x0E, 0x0D, 0x0D, 0x0F, 0x13, 0x1F},
        {0x14, 0x13, 0x11, 0x11, 0x13, 0x26, 0x1B, 0x1D},
        {0x17, 0x1F, 0x2D, 0x28, 0x30, 0x2F, 0x2D, 0x28},
        {0x2C, 0x2B, 0x32, 0x38, 0x48, 0x3D, 0x32, 0x35},
        {0x44, 0x36, 0x2B, 0x2C, 0x3F, 0x55, 0x3F, 0x44},
        {0x4A, 0x4D, 0x50, 0x51, 0x50, 0x30, 0x3C, 0x58},
        {0x5F, 0x58, 0x4E, 0x5E, 0x48, 0x4F, 0x50, 0x4D},
        {0xFF, 0x20, 0x00, 0x1F, 0x03, 0xA1, 0x00, 0x00},
        {0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00},
        {0x11, 0x22, 0x00, 0x22, 0x22, 0x11, 0x22, 0x22},
        {0x11, 0x33, 0x33, 0x11, 0x44, 0x66, 0x22, 0x55},
        {0x66, 0xFF, 0xDD, 0x00, 0x04, 0x00, 0x0B, 0xFF},
        {0xC0, 0x00, 0x11, 0x08, 0x00, 0x90, 0x00, 0xB0},
        {0x03, 0x00, 0x21, 0x00, 0x01, 0x11, 0x01, 0x02},
        {0x11, 0x01, 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x00},
        {0x00, 0x01, 0x11, 0x02, 0x11, 0x00, 0x3F, 0x00},
        {0xFF, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
};
/* 640 take with the zcx30x part */
static const __u8 cxjpeg_qtable[][8] = {
        {0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x08},
        {0x06, 0x06, 0x07, 0x06, 0x05, 0x08, 0x07, 0x07},
        {0x07, 0x09, 0x09, 0x08, 0x0a, 0x0c, 0x14, 0x0a},
        {0x0c, 0x0b, 0x0b, 0x0c, 0x19, 0x12, 0x13, 0x0f},
        {0x14, 0x1d, 0x1a, 0x1f, 0x1e, 0x1d, 0x1a, 0x1c},
        {0x1c, 0x20, 0x24, 0x2e, 0x27, 0x20, 0x22, 0x2c},
        {0x23, 0x1c, 0x1c, 0x28, 0x37, 0x29, 0x2c, 0x30},
        {0x31, 0x34, 0x34, 0x34, 0x1f, 0x27, 0x39, 0x3d},
        {0x38, 0x32, 0x3c, 0x2e, 0x33, 0x34, 0x32, 0x01},
        {0x09, 0x09, 0x09, 0x0c, 0x0b, 0x0c, 0x18, 0x0a},
        {0x0a, 0x18, 0x32, 0x21, 0x1c, 0x21, 0x32, 0x32},
        {0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32},
        {0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32},
        {0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32},
        {0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32},
        {0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32},
        {0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32},
        {0xFF, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}        /* 18 */
};


static void cx11646_jpegInit(struct gspca_dev*gspca_dev)
{
        int i;
        int length;

        reg_w_val(gspca_dev, 0x00c0, 0x01);
        reg_w_val(gspca_dev, 0x00c3, 0x00);
        reg_w_val(gspca_dev, 0x00c0, 0x00);
        reg_r(gspca_dev, 0x0001, 1);
        length = 8;
        for (i = 0; i < 79; i++) {
                if (i == 78)
                        length = 6;
                reg_w(gspca_dev, 0x0008, cx_jpeg_init[i], length);
        }
        reg_r(gspca_dev, 0x0002, 1);
        reg_w_val(gspca_dev, 0x0055, 0x14);
}

static const __u8 reg12[] = { 0x0a, 0x05, 0x07, 0x04, 0x19 };
static const __u8 regE5_8[] =
                { 0x88, 0x00, 0xd4, 0x01, 0x88, 0x01, 0x01, 0x01 };
static const __u8 regE5a[] = { 0x88, 0x0a, 0x0c, 0x01 };
static const __u8 regE5b[] = { 0x88, 0x0b, 0x12, 0x01 };
static const __u8 regE5c[] = { 0x88, 0x05, 0x01, 0x01 };
static const __u8 reg51[] = { 0x77, 0x03 };
#define reg70 0x03

static void cx11646_jpeg(struct gspca_dev*gspca_dev)
{
        int i;
        int length;
        __u8 Reg55;
        int retry;

        reg_w_val(gspca_dev, 0x00c0, 0x01);
        reg_w_val(gspca_dev, 0x00c3, 0x00);
        reg_w_val(gspca_dev, 0x00c0, 0x00);
        reg_r(gspca_dev, 0x0001, 1);
        length = 8;
        switch (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv) {
        case 0:
                for (i = 0; i < 27; i++) {
                        if (i == 26)
                                length = 2;
                        reg_w(gspca_dev, 0x0008, cxjpeg_640[i], length);
                }
                Reg55 = 0x28;
                break;
        case 1:
                for (i = 0; i < 27; i++) {
                        if (i == 26)
                                length = 2;
                        reg_w(gspca_dev, 0x0008, cxjpeg_352[i], length);
                }
                Reg55 = 0x16;
                break;
        default:
/*      case 2: */
                for (i = 0; i < 27; i++) {
                        if (i == 26)
                                length = 2;
                        reg_w(gspca_dev, 0x0008, cxjpeg_320[i], length);
                }
                Reg55 = 0x14;
                break;
        case 3:
                for (i = 0; i < 27; i++) {
                        if (i == 26)
                                length = 2;
                        reg_w(gspca_dev, 0x0008, cxjpeg_176[i], length);
                }
                Reg55 = 0x0B;
                break;
        }

        reg_r(gspca_dev, 0x0002, 1);
        reg_w_val(gspca_dev, 0x0055, Reg55);
        reg_r(gspca_dev, 0x0002, 1);
        reg_w(gspca_dev, 0x0010, reg10, 2);
        reg_w_val(gspca_dev, 0x0054, 0x02);
        reg_w_val(gspca_dev, 0x0054, 0x01);
        reg_w_val(gspca_dev, 0x0000, 0x94);
        reg_w_val(gspca_dev, 0x0053, 0xc0);
        reg_w_val(gspca_dev, 0x00fc, 0xe1);
        reg_w_val(gspca_dev, 0x0000, 0x00);
        /* wait for completion */
        retry = 50;
        do {
                reg_r(gspca_dev, 0x0002, 1);
                                                        /* 0x07 until 0x00 */
                if (gspca_dev->usb_buf[0] == 0x00)
                        break;
                reg_w_val(gspca_dev, 0x0053, 0x00);
        } while (--retry);
        if (retry == 0)
                PERR("Damned Errors sending jpeg Table");
        /* send the qtable now */
        reg_r(gspca_dev, 0x0001, 1);            /* -> 0x18 */
        length = 8;
        for (i = 0; i < 18; i++) {
                if (i == 17)
                        length = 2;
                reg_w(gspca_dev, 0x0008, cxjpeg_qtable[i], length);

        }
        reg_r(gspca_dev, 0x0002, 1);    /* 0x00 */
        reg_r(gspca_dev, 0x0053, 1);    /* 0x00 */
        reg_w_val(gspca_dev, 0x0054, 0x02);
        reg_w_val(gspca_dev, 0x0054, 0x01);
        reg_w_val(gspca_dev, 0x0000, 0x94);
        reg_w_val(gspca_dev, 0x0053, 0xc0);

        reg_r(gspca_dev, 0x0038, 1);            /* 0x40 */
        reg_r(gspca_dev, 0x0038, 1);            /* 0x40 */
        reg_r(gspca_dev, 0x001f, 1);            /* 0x38 */
        reg_w(gspca_dev, 0x0012, reg12, 5);
        reg_w(gspca_dev, 0x00e5, regE5_8, 8);
        reg_r(gspca_dev, 0x00e8, 8);
        reg_w(gspca_dev, 0x00e5, regE5a, 4);
        reg_r(gspca_dev, 0x00e8, 1);            /* 0x00 */
        reg_w_val(gspca_dev, 0x009a, 0x01);
        reg_w(gspca_dev, 0x00e5, regE5b, 4);
        reg_r(gspca_dev, 0x00e8, 1);            /* 0x00 */
        reg_w(gspca_dev, 0x00e5, regE5c, 4);
        reg_r(gspca_dev, 0x00e8, 1);            /* 0x00 */

        reg_w(gspca_dev, 0x0051, reg51, 2);
        reg_w(gspca_dev, 0x0010, reg10, 2);
        reg_w_val(gspca_dev, 0x0070, reg70);
}

static void cx11646_init1(struct gspca_dev *gspca_dev)
{
        int i = 0;

        reg_w_val(gspca_dev, 0x0010, 0x00);
        reg_w_val(gspca_dev, 0x0053, 0x00);
        reg_w_val(gspca_dev, 0x0052, 0x00);
        reg_w_val(gspca_dev, 0x009b, 0x2f);
        reg_w_val(gspca_dev, 0x009c, 0x10);
        reg_r(gspca_dev, 0x0098, 1);
        reg_w_val(gspca_dev, 0x0098, 0x40);
        reg_r(gspca_dev, 0x0099, 1);
        reg_w_val(gspca_dev, 0x0099, 0x07);
        reg_w_val(gspca_dev, 0x0039, 0x40);
        reg_w_val(gspca_dev, 0x003c, 0xff);
        reg_w_val(gspca_dev, 0x003f, 0x1f);
        reg_w_val(gspca_dev, 0x003d, 0x40);
/*      reg_w_val(gspca_dev, 0x003d, 0x60); */
        reg_r(gspca_dev, 0x0099, 1);                    /* ->0x07 */

        while (cx_sensor_init[i][0]) {
                reg_w_val(gspca_dev, 0x00e5, cx_sensor_init[i][0]);
                reg_r(gspca_dev, 0x00e8, 1);            /* -> 0x00 */
                if (i == 1) {
                        reg_w_val(gspca_dev, 0x00ed, 0x01);
                        reg_r(gspca_dev, 0x00ed, 1);    /* -> 0x01 */
                }
                i++;
        }
        reg_w_val(gspca_dev, 0x00c3, 0x00);
}

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

        cam = &gspca_dev->cam;
        cam->cam_mode = vga_mode;
        cam->nmodes = ARRAY_SIZE(vga_mode);
        return 0;
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
        cx11646_init1(gspca_dev);
        cx11646_initsize(gspca_dev);
        cx11646_fw(gspca_dev);
        cx_sensor(gspca_dev);
        cx11646_jpegInit(gspca_dev);
        return 0;
}

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

        /* create the JPEG header */
        jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
                        gspca_dev->pixfmt.width,
                        0x22);          /* JPEG 411 */
        jpeg_set_qual(sd->jpeg_hdr, QUALITY);

        cx11646_initsize(gspca_dev);
        cx11646_fw(gspca_dev);
        cx_sensor(gspca_dev);
        cx11646_jpeg(gspca_dev);
        return 0;
}

/* called on streamoff with alt 0 and on disconnect */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
        int retry = 50;

        if (!gspca_dev->present)
                return;
        reg_w_val(gspca_dev, 0x0000, 0x00);
        reg_r(gspca_dev, 0x0002, 1);
        reg_w_val(gspca_dev, 0x0053, 0x00);

        while (retry--) {
/*              reg_r(gspca_dev, 0x0002, 1);*/
                reg_r(gspca_dev, 0x0053, 1);
                if (gspca_dev->usb_buf[0] == 0)
                        break;
        }
        reg_w_val(gspca_dev, 0x0000, 0x00);
        reg_r(gspca_dev, 0x0002, 1);

        reg_w_val(gspca_dev, 0x0010, 0x00);
        reg_r(gspca_dev, 0x0033, 1);
        reg_w_val(gspca_dev, 0x00fc, 0xe0);
}

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;

        if (data[0] == 0xff && data[1] == 0xd8) {

                /* start of frame */
                gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);

                /* put the JPEG header in the new frame */
                gspca_frame_add(gspca_dev, FIRST_PACKET,
                                sd->jpeg_hdr, JPEG_HDR_SZ);
                data += 2;
                len -= 2;
        }
        gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
}

static void setbrightness(struct gspca_dev *gspca_dev, s32 val, s32 sat)
{
        __u8 regE5cbx[] = { 0x88, 0x00, 0xd4, 0x01, 0x88, 0x01, 0x01, 0x01 };
        __u8 reg51c[2];

        regE5cbx[2] = val;
        reg_w(gspca_dev, 0x00e5, regE5cbx, 8);
        reg_r(gspca_dev, 0x00e8, 8);
        reg_w(gspca_dev, 0x00e5, regE5c, 4);
        reg_r(gspca_dev, 0x00e8, 1);            /* 0x00 */

        reg51c[0] = 0x77;
        reg51c[1] = sat;
        reg_w(gspca_dev, 0x0051, reg51c, 2);
        reg_w(gspca_dev, 0x0010, reg10, 2);
        reg_w_val(gspca_dev, 0x0070, reg70);
}

static void setcontrast(struct gspca_dev *gspca_dev, s32 val, s32 sat)
{
        __u8 regE5acx[] = { 0x88, 0x0a, 0x0c, 0x01 };   /* seem MSB */
/*      __u8 regE5bcx[] = { 0x88, 0x0b, 0x12, 0x01};     * LSB */
        __u8 reg51c[2];

        regE5acx[2] = val;
        reg_w(gspca_dev, 0x00e5, regE5acx, 4);
        reg_r(gspca_dev, 0x00e8, 1);            /* 0x00 */
        reg51c[0] = 0x77;
        reg51c[1] = sat;
        reg_w(gspca_dev, 0x0051, reg51c, 2);
        reg_w(gspca_dev, 0x0010, reg10, 2);
        reg_w_val(gspca_dev, 0x0070, reg70);
}

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

        gspca_dev->usb_err = 0;

        if (!gspca_dev->streaming)
                return 0;

        switch (ctrl->id) {
        case V4L2_CID_BRIGHTNESS:
                setbrightness(gspca_dev, ctrl->val, sd->sat->cur.val);
                break;
        case V4L2_CID_CONTRAST:
                setcontrast(gspca_dev, ctrl->val, sd->sat->cur.val);
                break;
        case V4L2_CID_SATURATION:
                setbrightness(gspca_dev, sd->brightness->cur.val, ctrl->val);
                setcontrast(gspca_dev, sd->contrast->cur.val, ctrl->val);
                break;
        }
        return gspca_dev->usb_err;
}

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

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, 3);
        sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 0xd4);
        sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_CONTRAST, 0x0a, 0x1f, 1, 0x0c);
        sd->sat = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_SATURATION, 0, 7, 1, 3);
        if (hdl->error) {
                pr_err("Could not initialize controls\n");
                return hdl->error;
        }
        return 0;
}

/* 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,
        .stop0 = sd_stop0,
        .pkt_scan = sd_pkt_scan,
};

/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
        {USB_DEVICE(0x0572, 0x0041)},
        {}
};
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);