// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * SPCA506 chip based cameras function
 * M Xhaard 15/04/2004 based on different work Mark Taylor and others
 * and my own snoopy file on a pv-321c donate by a german compagny
 *                "Firma Frank Gmbh" from  Saarbruecken
 *
 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
 */

#define MODULE_NAME "spca506"

#include "gspca.h"

MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
MODULE_DESCRIPTION("GSPCA/SPCA506 USB Camera Driver");
MODULE_LICENSE("GPL");

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

        char norme;
        char channel;
};

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 = 5},
        {176, 144, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
                .bytesperline = 176,
                .sizeimage = 176 * 144 * 3 / 2,
                .colorspace = V4L2_COLORSPACE_SRGB,
                .priv = 4},
        {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 SAA7113_bright 0x0a     /* defaults 0x80 */
#define SAA7113_contrast 0x0b   /* defaults 0x47 */
#define SAA7113_saturation 0x0c /* defaults 0x40 */
#define SAA7113_hue 0x0d        /* defaults 0x00 */
#define SAA7113_I2C_BASE_WRITE 0x4a

/* read 'len' bytes to gspca_dev->usb_buf */
static void reg_r(struct gspca_dev *gspca_dev,
                  __u16 req,
                  __u16 index,
                  __u16 length)
{
        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, length,
                        500);
}

static void reg_w(struct usb_device *dev,
                  __u16 req,
                  __u16 value,
                  __u16 index)
{
        usb_control_msg(dev,
                        usb_sndctrlpipe(dev, 0),
                        req,
                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                        value, index,
                        NULL, 0, 500);
}

static void spca506_Initi2c(struct gspca_dev *gspca_dev)
{
        reg_w(gspca_dev->dev, 0x07, SAA7113_I2C_BASE_WRITE, 0x0004);
}

static void spca506_WriteI2c(struct gspca_dev *gspca_dev, __u16 valeur,
                             __u16 reg)
{
        int retry = 60;

        reg_w(gspca_dev->dev, 0x07, reg, 0x0001);
        reg_w(gspca_dev->dev, 0x07, valeur, 0x0000);
        while (retry--) {
                reg_r(gspca_dev, 0x07, 0x0003, 2);
                if ((gspca_dev->usb_buf[0] | gspca_dev->usb_buf[1]) == 0x00)
                        break;
        }
}

static void spca506_SetNormeInput(struct gspca_dev *gspca_dev,
                                 __u16 norme,
                                 __u16 channel)
{
        struct sd *sd = (struct sd *) gspca_dev;
/* fixme: check if channel == 0..3 and 6..9 (8 values) */
        __u8 setbit0 = 0x00;
        __u8 setbit1 = 0x00;
        __u8 videomask = 0x00;

        gspca_dbg(gspca_dev, D_STREAM, "** Open Set Norme **\n");
        spca506_Initi2c(gspca_dev);
        /* NTSC bit0 -> 1(525 l) PAL SECAM bit0 -> 0 (625 l) */
        /* Composite channel bit1 -> 1 S-video bit 1 -> 0 */
        /* and exclude SAA7113 reserved channel set default 0 otherwise */
        if (norme & V4L2_STD_NTSC)
                setbit0 = 0x01;
        if (channel == 4 || channel == 5 || channel > 9)
                channel = 0;
        if (channel < 4)
                setbit1 = 0x02;
        videomask = (0x48 | setbit0 | setbit1);
        reg_w(gspca_dev->dev, 0x08, videomask, 0x0000);
        spca506_WriteI2c(gspca_dev, (0xc0 | (channel & 0x0F)), 0x02);

        if (norme & V4L2_STD_NTSC)
                spca506_WriteI2c(gspca_dev, 0x33, 0x0e);
                                        /* Chrominance Control NTSC N */
        else if (norme & V4L2_STD_SECAM)
                spca506_WriteI2c(gspca_dev, 0x53, 0x0e);
                                        /* Chrominance Control SECAM */
        else
                spca506_WriteI2c(gspca_dev, 0x03, 0x0e);
                                        /* Chrominance Control PAL BGHIV */

        sd->norme = norme;
        sd->channel = channel;
        gspca_dbg(gspca_dev, D_STREAM, "Set Video Byte to 0x%2x\n", videomask);
        gspca_dbg(gspca_dev, D_STREAM, "Set Norme: %08x Channel %d",
                  norme, channel);
}

static void spca506_GetNormeInput(struct gspca_dev *gspca_dev,
                                  __u16 *norme, __u16 *channel)
{
        struct sd *sd = (struct sd *) gspca_dev;

        /* Read the register is not so good value change so
           we use your own copy in spca50x struct */
        *norme = sd->norme;
        *channel = sd->channel;
        gspca_dbg(gspca_dev, D_STREAM, "Get Norme: %d Channel %d\n",
                  *norme, *channel);
}

static void spca506_Setsize(struct gspca_dev *gspca_dev, __u16 code,
                            __u16 xmult, __u16 ymult)
{
        struct usb_device *dev = gspca_dev->dev;

        gspca_dbg(gspca_dev, D_STREAM, "** SetSize **\n");
        reg_w(dev, 0x04, (0x18 | (code & 0x07)), 0x0000);
        /* Soft snap 0x40 Hard 0x41 */
        reg_w(dev, 0x04, 0x41, 0x0001);
        reg_w(dev, 0x04, 0x00, 0x0002);
        /* reserved */
        reg_w(dev, 0x04, 0x00, 0x0003);

        /* reserved */
        reg_w(dev, 0x04, 0x00, 0x0004);
        /* reserved */
        reg_w(dev, 0x04, 0x01, 0x0005);
        /* reserced */
        reg_w(dev, 0x04, xmult, 0x0006);
        /* reserved */
        reg_w(dev, 0x04, ymult, 0x0007);
        /* compression 1 */
        reg_w(dev, 0x04, 0x00, 0x0008);
        /* T=64 -> 2 */
        reg_w(dev, 0x04, 0x00, 0x0009);
        /* threshold2D */
        reg_w(dev, 0x04, 0x21, 0x000a);
        /* quantization */
        reg_w(dev, 0x04, 0x00, 0x000b);
}

/* 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)
{
        struct usb_device *dev = gspca_dev->dev;

        reg_w(dev, 0x03, 0x00, 0x0004);
        reg_w(dev, 0x03, 0xFF, 0x0003);
        reg_w(dev, 0x03, 0x00, 0x0000);
        reg_w(dev, 0x03, 0x1c, 0x0001);
        reg_w(dev, 0x03, 0x18, 0x0001);
        /* Init on PAL and composite input0 */
        spca506_SetNormeInput(gspca_dev, 0, 0);
        reg_w(dev, 0x03, 0x1c, 0x0001);
        reg_w(dev, 0x03, 0x18, 0x0001);
        reg_w(dev, 0x05, 0x00, 0x0000);
        reg_w(dev, 0x05, 0xef, 0x0001);
        reg_w(dev, 0x05, 0x00, 0x00c1);
        reg_w(dev, 0x05, 0x00, 0x00c2);
        reg_w(dev, 0x06, 0x18, 0x0002);
        reg_w(dev, 0x06, 0xf5, 0x0011);
        reg_w(dev, 0x06, 0x02, 0x0012);
        reg_w(dev, 0x06, 0xfb, 0x0013);
        reg_w(dev, 0x06, 0x00, 0x0014);
        reg_w(dev, 0x06, 0xa4, 0x0051);
        reg_w(dev, 0x06, 0x40, 0x0052);
        reg_w(dev, 0x06, 0x71, 0x0053);
        reg_w(dev, 0x06, 0x40, 0x0054);
        /************************************************/
        reg_w(dev, 0x03, 0x00, 0x0004);
        reg_w(dev, 0x03, 0x00, 0x0003);
        reg_w(dev, 0x03, 0x00, 0x0004);
        reg_w(dev, 0x03, 0xFF, 0x0003);
        reg_w(dev, 0x02, 0x00, 0x0000);
        reg_w(dev, 0x03, 0x60, 0x0000);
        reg_w(dev, 0x03, 0x18, 0x0001);
        /* for a better reading mx :)     */
        /*sdca506_WriteI2c(value,register) */
        spca506_Initi2c(gspca_dev);
        spca506_WriteI2c(gspca_dev, 0x08, 0x01);
        spca506_WriteI2c(gspca_dev, 0xc0, 0x02);
                                                /* input composite video */
        spca506_WriteI2c(gspca_dev, 0x33, 0x03);
        spca506_WriteI2c(gspca_dev, 0x00, 0x04);
        spca506_WriteI2c(gspca_dev, 0x00, 0x05);
        spca506_WriteI2c(gspca_dev, 0x0d, 0x06);
        spca506_WriteI2c(gspca_dev, 0xf0, 0x07);
        spca506_WriteI2c(gspca_dev, 0x98, 0x08);
        spca506_WriteI2c(gspca_dev, 0x03, 0x09);
        spca506_WriteI2c(gspca_dev, 0x80, 0x0a);
        spca506_WriteI2c(gspca_dev, 0x47, 0x0b);
        spca506_WriteI2c(gspca_dev, 0x48, 0x0c);
        spca506_WriteI2c(gspca_dev, 0x00, 0x0d);
        spca506_WriteI2c(gspca_dev, 0x03, 0x0e);        /* Chroma Pal adjust */
        spca506_WriteI2c(gspca_dev, 0x2a, 0x0f);
        spca506_WriteI2c(gspca_dev, 0x00, 0x10);
        spca506_WriteI2c(gspca_dev, 0x0c, 0x11);
        spca506_WriteI2c(gspca_dev, 0xb8, 0x12);
        spca506_WriteI2c(gspca_dev, 0x01, 0x13);
        spca506_WriteI2c(gspca_dev, 0x00, 0x14);
        spca506_WriteI2c(gspca_dev, 0x00, 0x15);
        spca506_WriteI2c(gspca_dev, 0x00, 0x16);
        spca506_WriteI2c(gspca_dev, 0x00, 0x17);
        spca506_WriteI2c(gspca_dev, 0x00, 0x18);
        spca506_WriteI2c(gspca_dev, 0x00, 0x19);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1a);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1b);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1c);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1d);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1e);
        spca506_WriteI2c(gspca_dev, 0xa1, 0x1f);
        spca506_WriteI2c(gspca_dev, 0x02, 0x40);
        spca506_WriteI2c(gspca_dev, 0xff, 0x41);
        spca506_WriteI2c(gspca_dev, 0xff, 0x42);
        spca506_WriteI2c(gspca_dev, 0xff, 0x43);
        spca506_WriteI2c(gspca_dev, 0xff, 0x44);
        spca506_WriteI2c(gspca_dev, 0xff, 0x45);
        spca506_WriteI2c(gspca_dev, 0xff, 0x46);
        spca506_WriteI2c(gspca_dev, 0xff, 0x47);
        spca506_WriteI2c(gspca_dev, 0xff, 0x48);
        spca506_WriteI2c(gspca_dev, 0xff, 0x49);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4a);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4b);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4c);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4d);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4e);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4f);
        spca506_WriteI2c(gspca_dev, 0xff, 0x50);
        spca506_WriteI2c(gspca_dev, 0xff, 0x51);
        spca506_WriteI2c(gspca_dev, 0xff, 0x52);
        spca506_WriteI2c(gspca_dev, 0xff, 0x53);
        spca506_WriteI2c(gspca_dev, 0xff, 0x54);
        spca506_WriteI2c(gspca_dev, 0xff, 0x55);
        spca506_WriteI2c(gspca_dev, 0xff, 0x56);
        spca506_WriteI2c(gspca_dev, 0xff, 0x57);
        spca506_WriteI2c(gspca_dev, 0x00, 0x58);
        spca506_WriteI2c(gspca_dev, 0x54, 0x59);
        spca506_WriteI2c(gspca_dev, 0x07, 0x5a);
        spca506_WriteI2c(gspca_dev, 0x83, 0x5b);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5c);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5d);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5e);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5f);
        spca506_WriteI2c(gspca_dev, 0x00, 0x60);
        spca506_WriteI2c(gspca_dev, 0x05, 0x61);
        spca506_WriteI2c(gspca_dev, 0x9f, 0x62);
        gspca_dbg(gspca_dev, D_STREAM, "** Close Init *\n");
        return 0;
}

static int sd_start(struct gspca_dev *gspca_dev)
{
        struct usb_device *dev = gspca_dev->dev;
        __u16 norme;
        __u16 channel;

        /**************************************/
        reg_w(dev, 0x03, 0x00, 0x0004);
        reg_w(dev, 0x03, 0x00, 0x0003);
        reg_w(dev, 0x03, 0x00, 0x0004);
        reg_w(dev, 0x03, 0xFF, 0x0003);
        reg_w(dev, 0x02, 0x00, 0x0000);
        reg_w(dev, 0x03, 0x60, 0x0000);
        reg_w(dev, 0x03, 0x18, 0x0001);

        /*sdca506_WriteI2c(value,register) */
        spca506_Initi2c(gspca_dev);
        spca506_WriteI2c(gspca_dev, 0x08, 0x01);        /* Increment Delay */
/*      spca506_WriteI2c(gspca_dev, 0xc0, 0x02); * Analog Input Control 1 */
        spca506_WriteI2c(gspca_dev, 0x33, 0x03);
                                                /* Analog Input Control 2 */
        spca506_WriteI2c(gspca_dev, 0x00, 0x04);
                                                /* Analog Input Control 3 */
        spca506_WriteI2c(gspca_dev, 0x00, 0x05);
                                                /* Analog Input Control 4 */
        spca506_WriteI2c(gspca_dev, 0x0d, 0x06);
                                        /* Horizontal Sync Start 0xe9-0x0d */
        spca506_WriteI2c(gspca_dev, 0xf0, 0x07);
                                        /* Horizontal Sync Stop  0x0d-0xf0 */

        spca506_WriteI2c(gspca_dev, 0x98, 0x08);        /* Sync Control */
/*              Defaults value                  */
        spca506_WriteI2c(gspca_dev, 0x03, 0x09);        /* Luminance Control */
        spca506_WriteI2c(gspca_dev, 0x80, 0x0a);
                                                /* Luminance Brightness */
        spca506_WriteI2c(gspca_dev, 0x47, 0x0b);        /* Luminance Contrast */
        spca506_WriteI2c(gspca_dev, 0x48, 0x0c);
                                                /* Chrominance Saturation */
        spca506_WriteI2c(gspca_dev, 0x00, 0x0d);
                                                /* Chrominance Hue Control */
        spca506_WriteI2c(gspca_dev, 0x2a, 0x0f);
                                                /* Chrominance Gain Control */
        /**************************************/
        spca506_WriteI2c(gspca_dev, 0x00, 0x10);
                                                /* Format/Delay Control */
        spca506_WriteI2c(gspca_dev, 0x0c, 0x11);        /* Output Control 1 */
        spca506_WriteI2c(gspca_dev, 0xb8, 0x12);        /* Output Control 2 */
        spca506_WriteI2c(gspca_dev, 0x01, 0x13);        /* Output Control 3 */
        spca506_WriteI2c(gspca_dev, 0x00, 0x14);        /* reserved */
        spca506_WriteI2c(gspca_dev, 0x00, 0x15);        /* VGATE START */
        spca506_WriteI2c(gspca_dev, 0x00, 0x16);        /* VGATE STOP */
        spca506_WriteI2c(gspca_dev, 0x00, 0x17);    /* VGATE Control (MSB) */
        spca506_WriteI2c(gspca_dev, 0x00, 0x18);
        spca506_WriteI2c(gspca_dev, 0x00, 0x19);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1a);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1b);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1c);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1d);
        spca506_WriteI2c(gspca_dev, 0x00, 0x1e);
        spca506_WriteI2c(gspca_dev, 0xa1, 0x1f);
        spca506_WriteI2c(gspca_dev, 0x02, 0x40);
        spca506_WriteI2c(gspca_dev, 0xff, 0x41);
        spca506_WriteI2c(gspca_dev, 0xff, 0x42);
        spca506_WriteI2c(gspca_dev, 0xff, 0x43);
        spca506_WriteI2c(gspca_dev, 0xff, 0x44);
        spca506_WriteI2c(gspca_dev, 0xff, 0x45);
        spca506_WriteI2c(gspca_dev, 0xff, 0x46);
        spca506_WriteI2c(gspca_dev, 0xff, 0x47);
        spca506_WriteI2c(gspca_dev, 0xff, 0x48);
        spca506_WriteI2c(gspca_dev, 0xff, 0x49);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4a);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4b);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4c);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4d);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4e);
        spca506_WriteI2c(gspca_dev, 0xff, 0x4f);
        spca506_WriteI2c(gspca_dev, 0xff, 0x50);
        spca506_WriteI2c(gspca_dev, 0xff, 0x51);
        spca506_WriteI2c(gspca_dev, 0xff, 0x52);
        spca506_WriteI2c(gspca_dev, 0xff, 0x53);
        spca506_WriteI2c(gspca_dev, 0xff, 0x54);
        spca506_WriteI2c(gspca_dev, 0xff, 0x55);
        spca506_WriteI2c(gspca_dev, 0xff, 0x56);
        spca506_WriteI2c(gspca_dev, 0xff, 0x57);
        spca506_WriteI2c(gspca_dev, 0x00, 0x58);
        spca506_WriteI2c(gspca_dev, 0x54, 0x59);
        spca506_WriteI2c(gspca_dev, 0x07, 0x5a);
        spca506_WriteI2c(gspca_dev, 0x83, 0x5b);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5c);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5d);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5e);
        spca506_WriteI2c(gspca_dev, 0x00, 0x5f);
        spca506_WriteI2c(gspca_dev, 0x00, 0x60);
        spca506_WriteI2c(gspca_dev, 0x05, 0x61);
        spca506_WriteI2c(gspca_dev, 0x9f, 0x62);
        /**************************************/
        reg_w(dev, 0x05, 0x00, 0x0003);
        reg_w(dev, 0x05, 0x00, 0x0004);
        reg_w(dev, 0x03, 0x10, 0x0001);
        reg_w(dev, 0x03, 0x78, 0x0000);
        switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
        case 0:
                spca506_Setsize(gspca_dev, 0, 0x10, 0x10);
                break;
        case 1:
                spca506_Setsize(gspca_dev, 1, 0x1a, 0x1a);
                break;
        case 2:
                spca506_Setsize(gspca_dev, 2, 0x1c, 0x1c);
                break;
        case 4:
                spca506_Setsize(gspca_dev, 4, 0x34, 0x34);
                break;
        default:
/*      case 5: */
                spca506_Setsize(gspca_dev, 5, 0x40, 0x40);
                break;
        }

        /* compress setting and size */
        /* set i2c luma */
        reg_w(dev, 0x02, 0x01, 0x0000);
        reg_w(dev, 0x03, 0x12, 0x0000);
        reg_r(gspca_dev, 0x04, 0x0001, 2);
        gspca_dbg(gspca_dev, D_STREAM, "webcam started\n");
        spca506_GetNormeInput(gspca_dev, &norme, &channel);
        spca506_SetNormeInput(gspca_dev, norme, channel);
        return 0;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
        struct usb_device *dev = gspca_dev->dev;

        reg_w(dev, 0x02, 0x00, 0x0000);
        reg_w(dev, 0x03, 0x00, 0x0004);
        reg_w(dev, 0x03, 0x00, 0x0003);
}

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 */
/*              gspca_dev->last_packet_type = DISCARD_PACKET; */
                break;
        default:
                data += 1;
                len -= 1;
                gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
                break;
        }
}

static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
{
        spca506_Initi2c(gspca_dev);
        spca506_WriteI2c(gspca_dev, val, SAA7113_bright);
        spca506_WriteI2c(gspca_dev, 0x01, 0x09);
}

static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
{
        spca506_Initi2c(gspca_dev);
        spca506_WriteI2c(gspca_dev, val, SAA7113_contrast);
        spca506_WriteI2c(gspca_dev, 0x01, 0x09);
}

static void setcolors(struct gspca_dev *gspca_dev, s32 val)
{
        spca506_Initi2c(gspca_dev);
        spca506_WriteI2c(gspca_dev, val, SAA7113_saturation);
        spca506_WriteI2c(gspca_dev, 0x01, 0x09);
}

static void sethue(struct gspca_dev *gspca_dev, s32 val)
{
        spca506_Initi2c(gspca_dev);
        spca506_WriteI2c(gspca_dev, val, SAA7113_hue);
        spca506_WriteI2c(gspca_dev, 0x01, 0x09);
}

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;
        case V4L2_CID_CONTRAST:
                setcontrast(gspca_dev, ctrl->val);
                break;
        case V4L2_CID_SATURATION:
                setcolors(gspca_dev, ctrl->val);
                break;
        case V4L2_CID_HUE:
                sethue(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, 4);
        v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
        v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_CONTRAST, 0, 255, 1, 0x47);
        v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_SATURATION, 0, 255, 1, 0x40);
        v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_HUE, 0, 255, 1, 0);

        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,
        .stopN = sd_stopN,
        .pkt_scan = sd_pkt_scan,
};

/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
        {USB_DEVICE(0x06e1, 0xa190)},
/*      {USB_DEVICE(0x0733, 0x0430)}, FIXME: may be IntelPCCameraPro BRIDGE_SPCA505 */
        {USB_DEVICE(0x0734, 0x043b)},
        {USB_DEVICE(0x99fa, 0x8988)},
        {}
};
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);