spca505.c

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/*
 * SPCA505 chip based cameras initialization data
 *
 * V4L2 by Jean-Francis 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 "spca505"

#include "gspca.h"

MODULE_AUTHOR("Michel Xhaard <[email protected]>");
MODULE_DESCRIPTION("GSPCA/SPCA505 USB Camera Driver");
MODULE_LICENSE("GPL");

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

    u8 subtype;
#define IntelPCCameraPro 0
#define Nxultra 1
};

static const struct v4l2_pix_format vga_mode[] = {
    {160, 120, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
        .bytesperline = 160,
        .sizeimage = 160 * 120 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 4},
    {176, 144, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
        .bytesperline = 176,
        .sizeimage = 176 * 144 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 3},
    {320, 240, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
        .bytesperline = 320,
        .sizeimage = 320 * 240 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 2},
    {352, 288, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
        .bytesperline = 352,
        .sizeimage = 352 * 288 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 1},
    {640, 480, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
        .bytesperline = 640,
        .sizeimage = 640 * 480 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 0},
};

#define SPCA50X_OFFSET_DATA 10

#define SPCA50X_REG_USB 0x02    /* spca505 501 */

#define SPCA50X_USB_CTRL 0x00   /* spca505 */
#define SPCA50X_CUSB_ENABLE 0x01 /* spca505 */

#define SPCA50X_REG_GLOBAL 0x03 /* spca505 */
#define SPCA50X_GMISC0_IDSEL 0x01 /* Global control device ID select spca505 */
#define SPCA50X_GLOBAL_MISC0 0x00 /* Global control miscellaneous 0 spca505 */

#define SPCA50X_GLOBAL_MISC1 0x01 /* 505 */
#define SPCA50X_GLOBAL_MISC3 0x03 /* 505 */
#define SPCA50X_GMISC3_SAA7113RST 0x20  /* Not sure about this one spca505 */

/* Image format and compression control */
#define SPCA50X_REG_COMPRESS 0x04

/*
 * Data to initialize a SPCA505. Common to the CCD and external modes
 */
static const u8 spca505_init_data[][3] = {
    /* bmRequest,value,index */
    {SPCA50X_REG_GLOBAL, SPCA50X_GMISC3_SAA7113RST, SPCA50X_GLOBAL_MISC3},
    /* Sensor reset */
    {SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC3},
    {SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC1},
    /* Block USB reset */
    {SPCA50X_REG_GLOBAL, SPCA50X_GMISC0_IDSEL, SPCA50X_GLOBAL_MISC0},

    {0x05, 0x01, 0x10},
                    /* Maybe power down some stuff */
    {0x05, 0x0f, 0x11},

    /* Setup internal CCD  ? */
    {0x06, 0x10, 0x08},
    {0x06, 0x00, 0x09},
    {0x06, 0x00, 0x0a},
    {0x06, 0x00, 0x0b},
    {0x06, 0x10, 0x0c},
    {0x06, 0x00, 0x0d},
    {0x06, 0x00, 0x0e},
    {0x06, 0x00, 0x0f},
    {0x06, 0x10, 0x10},
    {0x06, 0x02, 0x11},
    {0x06, 0x00, 0x12},
    {0x06, 0x04, 0x13},
    {0x06, 0x02, 0x14},
    {0x06, 0x8a, 0x51},
    {0x06, 0x40, 0x52},
    {0x06, 0xb6, 0x53},
    {0x06, 0x3d, 0x54},
    {}
};

/*
 * Data to initialize the camera using the internal CCD
 */
static const u8 spca505_open_data_ccd[][3] = {
    /* bmRequest,value,index */
    /* Internal CCD data set */
    {0x03, 0x04, 0x01},
    /* This could be a reset */
    {0x03, 0x00, 0x01},

    /* Setup compression and image registers. 0x6 and 0x7 seem to be
       related to H&V hold, and are resolution mode specific */
        {0x04, 0x10, 0x01},
        /* DIFF(0x50), was (0x10) */
    {0x04, 0x00, 0x04},
    {0x04, 0x00, 0x05},
    {0x04, 0x20, 0x06},
    {0x04, 0x20, 0x07},

    {0x08, 0x0a, 0x00},
    /* DIFF (0x4a), was (0xa) */

    {0x05, 0x00, 0x10},
    {0x05, 0x00, 0x11},
    {0x05, 0x00, 0x00},
    /* DIFF not written */
    {0x05, 0x00, 0x01},
    /* DIFF not written */
    {0x05, 0x00, 0x02},
    /* DIFF not written */
    {0x05, 0x00, 0x03},
    /* DIFF not written */
    {0x05, 0x00, 0x04},
    /* DIFF not written */
        {0x05, 0x80, 0x05},
        /* DIFF not written */
        {0x05, 0xe0, 0x06},
        /* DIFF not written */
        {0x05, 0x20, 0x07},
        /* DIFF not written */
        {0x05, 0xa0, 0x08},
        /* DIFF not written */
        {0x05, 0x0, 0x12},
        /* DIFF not written */
    {0x05, 0x02, 0x0f},
    /* DIFF not written */
        {0x05, 0x10, 0x46},
        /* DIFF not written */
        {0x05, 0x8, 0x4a},
        /* DIFF not written */

    {0x03, 0x08, 0x03},
    /* DIFF (0x3,0x28,0x3) */
    {0x03, 0x08, 0x01},
    {0x03, 0x0c, 0x03},
    /* DIFF not written */
        {0x03, 0x21, 0x00},
        /* DIFF (0x39) */

/* Extra block copied from init to hopefully ensure CCD is in a sane state */
    {0x06, 0x10, 0x08},
    {0x06, 0x00, 0x09},
    {0x06, 0x00, 0x0a},
    {0x06, 0x00, 0x0b},
    {0x06, 0x10, 0x0c},
    {0x06, 0x00, 0x0d},
    {0x06, 0x00, 0x0e},
    {0x06, 0x00, 0x0f},
    {0x06, 0x10, 0x10},
    {0x06, 0x02, 0x11},
    {0x06, 0x00, 0x12},
    {0x06, 0x04, 0x13},
    {0x06, 0x02, 0x14},
    {0x06, 0x8a, 0x51},
    {0x06, 0x40, 0x52},
    {0x06, 0xb6, 0x53},
    {0x06, 0x3d, 0x54},
    /* End of extra block */

        {0x06, 0x3f, 0x1},
        /* Block skipped */
    {0x06, 0x10, 0x02},
    {0x06, 0x64, 0x07},
    {0x06, 0x10, 0x08},
    {0x06, 0x00, 0x09},
    {0x06, 0x00, 0x0a},
    {0x06, 0x00, 0x0b},
    {0x06, 0x10, 0x0c},
    {0x06, 0x00, 0x0d},
    {0x06, 0x00, 0x0e},
    {0x06, 0x00, 0x0f},
    {0x06, 0x10, 0x10},
    {0x06, 0x02, 0x11},
    {0x06, 0x00, 0x12},
    {0x06, 0x04, 0x13},
    {0x06, 0x02, 0x14},
    {0x06, 0x8a, 0x51},
    {0x06, 0x40, 0x52},
    {0x06, 0xb6, 0x53},
    {0x06, 0x3d, 0x54},
    {0x06, 0x60, 0x57},
    {0x06, 0x20, 0x58},
    {0x06, 0x15, 0x59},
    {0x06, 0x05, 0x5a},

    {0x05, 0x01, 0xc0},
    {0x05, 0x10, 0xcb},
        {0x05, 0x80, 0xc1},
        /* */
        {0x05, 0x0, 0xc2},
        /* 4 was 0 */
    {0x05, 0x00, 0xca},
        {0x05, 0x80, 0xc1},
        /*  */
    {0x05, 0x04, 0xc2},
    {0x05, 0x00, 0xca},
        {0x05, 0x0, 0xc1},
        /*  */
    {0x05, 0x00, 0xc2},
    {0x05, 0x00, 0xca},
        {0x05, 0x40, 0xc1},
        /* */
    {0x05, 0x17, 0xc2},
    {0x05, 0x00, 0xca},
        {0x05, 0x80, 0xc1},
        /* */
    {0x05, 0x06, 0xc2},
    {0x05, 0x00, 0xca},
        {0x05, 0x80, 0xc1},
        /* */
    {0x05, 0x04, 0xc2},
    {0x05, 0x00, 0xca},

    {0x03, 0x4c, 0x3},
    {0x03, 0x18, 0x1},

    {0x06, 0x70, 0x51},
    {0x06, 0xbe, 0x53},
    {0x06, 0x71, 0x57},
    {0x06, 0x20, 0x58},
    {0x06, 0x05, 0x59},
    {0x06, 0x15, 0x5a},

    {0x04, 0x00, 0x08},
    /* Compress = OFF (0x1 to turn on) */
    {0x04, 0x12, 0x09},
    {0x04, 0x21, 0x0a},
    {0x04, 0x10, 0x0b},
    {0x04, 0x21, 0x0c},
    {0x04, 0x05, 0x00},
    /* was 5 (Image Type ? ) */
    {0x04, 0x00, 0x01},

    {0x06, 0x3f, 0x01},

    {0x04, 0x00, 0x04},
    {0x04, 0x00, 0x05},
    {0x04, 0x40, 0x06},
    {0x04, 0x40, 0x07},

    {0x06, 0x1c, 0x17},
    {0x06, 0xe2, 0x19},
    {0x06, 0x1c, 0x1b},
    {0x06, 0xe2, 0x1d},
    {0x06, 0xaa, 0x1f},
    {0x06, 0x70, 0x20},

    {0x05, 0x01, 0x10},
    {0x05, 0x00, 0x11},
    {0x05, 0x01, 0x00},
    {0x05, 0x05, 0x01},
        {0x05, 0x00, 0xc1},
        /* */
    {0x05, 0x00, 0xc2},
    {0x05, 0x00, 0xca},

    {0x06, 0x70, 0x51},
    {0x06, 0xbe, 0x53},
    {}
};

/*
 * Made by Tomasz Zablocki ([email protected])
 * SPCA505b chip based cameras initialization data
 */
/* jfm */
#define initial_brightness 0x7f /* 0x0(white)-0xff(black) */
/* #define initial_brightness 0x0   //0x0(white)-0xff(black) */
/*
 * Data to initialize a SPCA505. Common to the CCD and external modes
 */
static const u8 spca505b_init_data[][3] = {
/* start */
    {0x02, 0x00, 0x00},     /* init */
    {0x02, 0x00, 0x01},
    {0x02, 0x00, 0x02},
    {0x02, 0x00, 0x03},
    {0x02, 0x00, 0x04},
    {0x02, 0x00, 0x05},
    {0x02, 0x00, 0x06},
    {0x02, 0x00, 0x07},
    {0x02, 0x00, 0x08},
    {0x02, 0x00, 0x09},
    {0x03, 0x00, 0x00},
    {0x03, 0x00, 0x01},
    {0x03, 0x00, 0x02},
    {0x03, 0x00, 0x03},
    {0x03, 0x00, 0x04},
    {0x03, 0x00, 0x05},
    {0x03, 0x00, 0x06},
    {0x04, 0x00, 0x00},
    {0x04, 0x00, 0x02},
    {0x04, 0x00, 0x04},
    {0x04, 0x00, 0x05},
    {0x04, 0x00, 0x06},
    {0x04, 0x00, 0x07},
    {0x04, 0x00, 0x08},
    {0x04, 0x00, 0x09},
    {0x04, 0x00, 0x0a},
    {0x04, 0x00, 0x0b},
    {0x04, 0x00, 0x0c},
    {0x07, 0x00, 0x00},
    {0x07, 0x00, 0x03},
    {0x08, 0x00, 0x00},
    {0x08, 0x00, 0x01},
    {0x08, 0x00, 0x02},
    {0x06, 0x18, 0x08},
    {0x06, 0xfc, 0x09},
    {0x06, 0xfc, 0x0a},
    {0x06, 0xfc, 0x0b},
    {0x06, 0x18, 0x0c},
    {0x06, 0xfc, 0x0d},
    {0x06, 0xfc, 0x0e},
    {0x06, 0xfc, 0x0f},
    {0x06, 0x18, 0x10},
    {0x06, 0xfe, 0x12},
    {0x06, 0x00, 0x11},
    {0x06, 0x00, 0x14},
    {0x06, 0x00, 0x13},
    {0x06, 0x28, 0x51},
    {0x06, 0xff, 0x53},
    {0x02, 0x00, 0x08},

    {0x03, 0x00, 0x03},
    {0x03, 0x10, 0x03},
    {}
};

/*
 * Data to initialize the camera using the internal CCD
 */
static const u8 spca505b_open_data_ccd[][3] = {

/* {0x02,0x00,0x00}, */
    {0x03, 0x04, 0x01},     /* rst */
    {0x03, 0x00, 0x01},
    {0x03, 0x00, 0x00},
    {0x03, 0x21, 0x00},
    {0x03, 0x00, 0x04},
    {0x03, 0x00, 0x03},
    {0x03, 0x18, 0x03},
    {0x03, 0x08, 0x01},
    {0x03, 0x1c, 0x03},
    {0x03, 0x5c, 0x03},
    {0x03, 0x5c, 0x03},
    {0x03, 0x18, 0x01},

/* same as 505 */
    {0x04, 0x10, 0x01},
    {0x04, 0x00, 0x04},
    {0x04, 0x00, 0x05},
    {0x04, 0x20, 0x06},
    {0x04, 0x20, 0x07},

    {0x08, 0x0a, 0x00},

    {0x05, 0x00, 0x10},
    {0x05, 0x00, 0x11},
    {0x05, 0x00, 0x12},
    {0x05, 0x6f, 0x00},
    {0x05, initial_brightness >> 6, 0x00},
    {0x05, (initial_brightness << 2) & 0xff, 0x01},
    {0x05, 0x00, 0x02},
    {0x05, 0x01, 0x03},
    {0x05, 0x00, 0x04},
    {0x05, 0x03, 0x05},
    {0x05, 0xe0, 0x06},
    {0x05, 0x20, 0x07},
    {0x05, 0xa0, 0x08},
    {0x05, 0x00, 0x12},
    {0x05, 0x02, 0x0f},
    {0x05, 0x80, 0x14},     /* max exposure off (0=on) */
    {0x05, 0x01, 0xb0},
    {0x05, 0x01, 0xbf},
    {0x03, 0x02, 0x06},
    {0x05, 0x10, 0x46},
    {0x05, 0x08, 0x4a},

    {0x06, 0x00, 0x01},
    {0x06, 0x10, 0x02},
    {0x06, 0x64, 0x07},
    {0x06, 0x18, 0x08},
    {0x06, 0xfc, 0x09},
    {0x06, 0xfc, 0x0a},
    {0x06, 0xfc, 0x0b},
    {0x04, 0x00, 0x01},
    {0x06, 0x18, 0x0c},
    {0x06, 0xfc, 0x0d},
    {0x06, 0xfc, 0x0e},
    {0x06, 0xfc, 0x0f},
    {0x06, 0x11, 0x10},     /* contrast */
    {0x06, 0x00, 0x11},
    {0x06, 0xfe, 0x12},
    {0x06, 0x00, 0x13},
    {0x06, 0x00, 0x14},
    {0x06, 0x9d, 0x51},
    {0x06, 0x40, 0x52},
    {0x06, 0x7c, 0x53},
    {0x06, 0x40, 0x54},
    {0x06, 0x02, 0x57},
    {0x06, 0x03, 0x58},
    {0x06, 0x15, 0x59},
    {0x06, 0x05, 0x5a},
    {0x06, 0x03, 0x56},
    {0x06, 0x02, 0x3f},
    {0x06, 0x00, 0x40},
    {0x06, 0x39, 0x41},
    {0x06, 0x69, 0x42},
    {0x06, 0x87, 0x43},
    {0x06, 0x9e, 0x44},
    {0x06, 0xb1, 0x45},
    {0x06, 0xbf, 0x46},
    {0x06, 0xcc, 0x47},
    {0x06, 0xd5, 0x48},
    {0x06, 0xdd, 0x49},
    {0x06, 0xe3, 0x4a},
    {0x06, 0xe8, 0x4b},
    {0x06, 0xed, 0x4c},
    {0x06, 0xf2, 0x4d},
    {0x06, 0xf7, 0x4e},
    {0x06, 0xfc, 0x4f},
    {0x06, 0xff, 0x50},

    {0x05, 0x01, 0xc0},
    {0x05, 0x10, 0xcb},
    {0x05, 0x40, 0xc1},
    {0x05, 0x04, 0xc2},
    {0x05, 0x00, 0xca},
    {0x05, 0x40, 0xc1},
    {0x05, 0x09, 0xc2},
    {0x05, 0x00, 0xca},
    {0x05, 0xc0, 0xc1},
    {0x05, 0x09, 0xc2},
    {0x05, 0x00, 0xca},
    {0x05, 0x40, 0xc1},
    {0x05, 0x59, 0xc2},
    {0x05, 0x00, 0xca},
    {0x04, 0x00, 0x01},
    {0x05, 0x80, 0xc1},
    {0x05, 0xec, 0xc2},
    {0x05, 0x0, 0xca},

    {0x06, 0x02, 0x57},
    {0x06, 0x01, 0x58},
    {0x06, 0x15, 0x59},
    {0x06, 0x0a, 0x5a},
    {0x06, 0x01, 0x57},
    {0x06, 0x8a, 0x03},
    {0x06, 0x0a, 0x6c},
    {0x06, 0x30, 0x01},
    {0x06, 0x20, 0x02},
    {0x06, 0x00, 0x03},

    {0x05, 0x8c, 0x25},

    {0x06, 0x4d, 0x51},     /* maybe saturation (4d) */
    {0x06, 0x84, 0x53},     /* making green (84) */
    {0x06, 0x00, 0x57},     /* sharpness (1) */
    {0x06, 0x18, 0x08},
    {0x06, 0xfc, 0x09},
    {0x06, 0xfc, 0x0a},
    {0x06, 0xfc, 0x0b},
    {0x06, 0x18, 0x0c},     /* maybe hue (18) */
    {0x06, 0xfc, 0x0d},
    {0x06, 0xfc, 0x0e},
    {0x06, 0xfc, 0x0f},
    {0x06, 0x18, 0x10},     /* maybe contrast (18) */

    {0x05, 0x01, 0x02},

    {0x04, 0x00, 0x08},     /* compression */
    {0x04, 0x12, 0x09},
    {0x04, 0x21, 0x0a},
    {0x04, 0x10, 0x0b},
    {0x04, 0x21, 0x0c},
    {0x04, 0x1d, 0x00},     /* imagetype (1d) */
    {0x04, 0x41, 0x01},     /* hardware snapcontrol */

    {0x04, 0x00, 0x04},
    {0x04, 0x00, 0x05},
    {0x04, 0x10, 0x06},
    {0x04, 0x10, 0x07},
    {0x04, 0x40, 0x06},
    {0x04, 0x40, 0x07},
    {0x04, 0x00, 0x04},
    {0x04, 0x00, 0x05},

    {0x06, 0x1c, 0x17},
    {0x06, 0xe2, 0x19},
    {0x06, 0x1c, 0x1b},
    {0x06, 0xe2, 0x1d},
    {0x06, 0x5f, 0x1f},
    {0x06, 0x32, 0x20},

    {0x05, initial_brightness >> 6, 0x00},
    {0x05, (initial_brightness << 2) & 0xff, 0x01},
    {0x05, 0x06, 0xc1},
    {0x05, 0x58, 0xc2},
    {0x05, 0x00, 0xca},
    {0x05, 0x00, 0x11},
    {}
};

static int reg_write(struct usb_device *dev,
             u16 req, u16 index, u16 value)
{
    int ret;

    ret = usb_control_msg(dev,
            usb_sndctrlpipe(dev, 0),
            req,
            USB_TYPE_VENDOR | USB_RECIP_DEVICE,
            value, index, NULL, 0, 500);
    PDEBUG(D_USBO, "reg write: 0x%02x,0x%02x:0x%02x, %d",
        req, index, value, ret);
    if (ret < 0)
        pr_err("reg write: error %d\n", ret);
    return ret;
}

/* returns: negative is error, pos or zero is data */
static int reg_read(struct gspca_dev *gspca_dev,
            u16 req,    /* bRequest */
            u16 index)  /* wIndex */
{
    int ret;

    ret = usb_control_msg(gspca_dev->dev,
            usb_rcvctrlpipe(gspca_dev->dev, 0),
            req,
            USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
            0,          /* value */
            index,
            gspca_dev->usb_buf, 2,
            500);           /* timeout */
    if (ret < 0)
        return ret;
    return (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0];
}

static int write_vector(struct gspca_dev *gspca_dev,
            const u8 data[][3])
{
    struct usb_device *dev = gspca_dev->dev;
    int ret, i = 0;

    while (data[i][0] != 0) {
        ret = reg_write(dev, data[i][0], data[i][2], data[i][1]);
        if (ret < 0)
            return ret;
        i++;
    }
    return 0;
}

/* 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->cam_mode = vga_mode;
    sd->subtype = id->driver_info;
    if (sd->subtype != IntelPCCameraPro)
        cam->nmodes = ARRAY_SIZE(vga_mode);
    else            /* no 640x480 for IntelPCCameraPro */
        cam->nmodes = ARRAY_SIZE(vga_mode) - 1;

    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;

    if (write_vector(gspca_dev,
             sd->subtype == Nxultra
                ? spca505b_init_data
                : spca505_init_data))
        return -EIO;
    return 0;
}

static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
{
    reg_write(gspca_dev->dev, 0x05, 0x00, (255 - brightness) >> 6);
    reg_write(gspca_dev->dev, 0x05, 0x01, (255 - brightness) << 2);
}

static int sd_start(struct gspca_dev *gspca_dev)
{
    struct sd *sd = (struct sd *) gspca_dev;
    struct usb_device *dev = gspca_dev->dev;
    int ret, mode;
    static u8 mode_tb[][3] = {
    /*    r00   r06   r07   */
        {0x00, 0x10, 0x10}, /* 640x480 */
        {0x01, 0x1a, 0x1a}, /* 352x288 */
        {0x02, 0x1c, 0x1d}, /* 320x240 */
        {0x04, 0x34, 0x34}, /* 176x144 */
        {0x05, 0x40, 0x40}  /* 160x120 */
    };

    if (sd->subtype == Nxultra)
        write_vector(gspca_dev, spca505b_open_data_ccd);
    else
        write_vector(gspca_dev, spca505_open_data_ccd);
    ret = reg_read(gspca_dev, 0x06, 0x16);

    if (ret < 0) {
        PDEBUG(D_ERR|D_CONF,
               "register read failed err: %d",
               ret);
        return ret;
    }
    if (ret != 0x0101) {
        pr_err("After vector read returns 0x%04x should be 0x0101\n",
               ret);
    }

    ret = reg_write(gspca_dev->dev, 0x06, 0x16, 0x0a);
    if (ret < 0)
        return ret;
    reg_write(gspca_dev->dev, 0x05, 0xc2, 0x12);

    /* necessary because without it we can see stream
     * only once after loading module */
    /* stopping usb registers Tomasz change */
    reg_write(dev, 0x02, 0x00, 0x00);

    mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
    reg_write(dev, SPCA50X_REG_COMPRESS, 0x00, mode_tb[mode][0]);
    reg_write(dev, SPCA50X_REG_COMPRESS, 0x06, mode_tb[mode][1]);
    reg_write(dev, SPCA50X_REG_COMPRESS, 0x07, mode_tb[mode][2]);

    return reg_write(dev, SPCA50X_REG_USB,
             SPCA50X_USB_CTRL,
             SPCA50X_CUSB_ENABLE);
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
    /* Disable ISO packet machine */
    reg_write(gspca_dev->dev, 0x02, 0x00, 0x00);
}

/* called on streamoff with alt 0 and on disconnect */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
    if (!gspca_dev->present)
        return;

    /* This maybe reset or power control */
    reg_write(gspca_dev->dev, 0x03, 0x03, 0x20);
    reg_write(gspca_dev->dev, 0x03, 0x01, 0x00);
    reg_write(gspca_dev->dev, 0x03, 0x00, 0x01);
    reg_write(gspca_dev->dev, 0x05, 0x10, 0x01);
    reg_write(gspca_dev->dev, 0x05, 0x11, 0x0f);
}

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
            u8 *data,           /* isoc packet */
            int len)            /* iso packet length */
{
    switch (data[0]) {
    case 0:             /* start of frame */
        gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
        data += SPCA50X_OFFSET_DATA;
        len -= SPCA50X_OFFSET_DATA;
        gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
        break;
    case 0xff:          /* drop */
        break;
    default:
        data += 1;
        len -= 1;
        gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
        break;
    }
}

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, 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 v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;

    gspca_dev->vdev.ctrl_handler = hdl;
    v4l2_ctrl_handler_init(hdl, 5);
    v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
            V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);

    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_controls = sd_init_controls,
    .init = sd_init,
    .start = sd_start,
    .stopN = sd_stopN,
    .stop0 = sd_stop0,
    .pkt_scan = sd_pkt_scan,
};

/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
    {USB_DEVICE(0x041e, 0x401d), .driver_info = Nxultra},
    {USB_DEVICE(0x0733, 0x0430), .driver_info = IntelPCCameraPro},
/*fixme: may be UsbGrabberPV321 BRIDGE_SPCA506 SENSOR_SAA7113 */
    {}
};
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);