root/drivers/media/usb/gspca/ov534_9.c 
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * ov534-ov9xxx gspca driver
 *
 * Copyright (C) 2009-2011 Jean-Francois Moine http://moinejf.free.fr
 * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
 * Copyright (C) 2008 Jim Paris <jim@jtan.com>
 *
 * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
 * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
 * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define MODULE_NAME "ov534_9"

#include "gspca.h"

#define OV534_REG_ADDRESS       0xf1    /* sensor address */
#define OV534_REG_SUBADDR       0xf2
#define OV534_REG_WRITE         0xf3
#define OV534_REG_READ          0xf4
#define OV534_REG_OPERATION     0xf5
#define OV534_REG_STATUS        0xf6

#define OV534_OP_WRITE_3        0x37
#define OV534_OP_WRITE_2        0x33
#define OV534_OP_READ_2         0xf9

#define CTRL_TIMEOUT 500

MODULE_AUTHOR("Jean-Francois Moine <moinejf@free.fr>");
MODULE_DESCRIPTION("GSPCA/OV534_9 USB Camera Driver");
MODULE_LICENSE("GPL");

/* specific webcam descriptor */
struct sd {
        struct gspca_dev gspca_dev;     /* !! must be the first item */
        __u32 last_pts;
        u8 last_fid;

        u8 sensor;
};
enum sensors {
        SENSOR_OV965x,          /* ov9657 */
        SENSOR_OV971x,          /* ov9712 */
        SENSOR_OV562x,          /* ov5621 */
        SENSOR_OV361x,          /* ov3610 */
        NSENSORS
};

static const struct v4l2_pix_format ov965x_mode[] = {
#define QVGA_MODE 0
        {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 320,
                .sizeimage = 320 * 240 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG},
#define VGA_MODE 1
        {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 640,
                .sizeimage = 640 * 480 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG},
#define SVGA_MODE 2
        {800, 600, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 800,
                .sizeimage = 800 * 600 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG},
#define XGA_MODE 3
        {1024, 768, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 1024,
                .sizeimage = 1024 * 768 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG},
#define SXGA_MODE 4
        {1280, 1024, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
                .bytesperline = 1280,
                .sizeimage = 1280 * 1024 * 3 / 8 + 590,
                .colorspace = V4L2_COLORSPACE_JPEG},
};

static const struct v4l2_pix_format ov971x_mode[] = {
        {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 640,
                .sizeimage = 640 * 480,
                .colorspace = V4L2_COLORSPACE_SRGB
        }
};

static const struct v4l2_pix_format ov562x_mode[] = {
        {2592, 1680, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 2592,
                .sizeimage = 2592 * 1680,
                .colorspace = V4L2_COLORSPACE_SRGB
        }
};

enum ov361x {
        ov361x_2048 = 0,
        ov361x_1600,
        ov361x_1024,
        ov361x_640,
        ov361x_320,
        ov361x_160,
        ov361x_last
};

static const struct v4l2_pix_format ov361x_mode[] = {
        {0x800, 0x600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 0x800,
                .sizeimage = 0x800 * 0x600,
                .colorspace = V4L2_COLORSPACE_SRGB},
        {1600, 1200, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 1600,
                .sizeimage = 1600 * 1200,
                .colorspace = V4L2_COLORSPACE_SRGB},
        {1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 768,
                .sizeimage = 1024 * 768,
                .colorspace = V4L2_COLORSPACE_SRGB},
        {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 640,
                .sizeimage = 640 * 480,
                .colorspace = V4L2_COLORSPACE_SRGB},
        {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 320,
                .sizeimage = 320 * 240,
                .colorspace = V4L2_COLORSPACE_SRGB},
        {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
                .bytesperline = 160,
                .sizeimage = 160 * 120,
                .colorspace = V4L2_COLORSPACE_SRGB}
};

static const u8 ov361x_start_2048[][2] = {
        {0x12, 0x80},
        {0x13, 0xcf},
        {0x14, 0x40},
        {0x15, 0x00},
        {0x01, 0x80},
        {0x02, 0x80},
        {0x04, 0x70},
        {0x0d, 0x40},
        {0x0f, 0x47},
        {0x11, 0x81},
        {0x32, 0x36},
        {0x33, 0x0c},
        {0x34, 0x00},
        {0x35, 0x90},
        {0x12, 0x00},
        {0x17, 0x10},
        {0x18, 0x90},
        {0x19, 0x00},
        {0x1a, 0xc0},
};
static const u8 ov361x_bridge_start_2048[][2] = {
        {0xf1, 0x60},
        {0x88, 0x00},
        {0x89, 0x08},
        {0x8a, 0x00},
        {0x8b, 0x06},
        {0x8c, 0x01},
        {0x8d, 0x10},
        {0x1c, 0x00},
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},
        {0x1d, 0x2e},
        {0x1d, 0x1e},
};

static const u8 ov361x_start_1600[][2] = {
        {0x12, 0x80},
        {0x13, 0xcf},
        {0x14, 0x40},
        {0x15, 0x00},
        {0x01, 0x80},
        {0x02, 0x80},
        {0x04, 0x70},
        {0x0d, 0x40},
        {0x0f, 0x47},
        {0x11, 0x81},
        {0x32, 0x36},
        {0x33, 0x0C},
        {0x34, 0x00},
        {0x35, 0x90},
        {0x12, 0x00},
        {0x17, 0x10},
        {0x18, 0x90},
        {0x19, 0x00},
        {0x1a, 0xc0},
};
static const u8 ov361x_bridge_start_1600[][2] = {
        {0xf1, 0x60},  /* Hsize[7:0] */
        {0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
        {0x89, 0x08},  /* Vsize[7:0] */
        {0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
        {0x8b, 0x06},  /* for Iso */
        {0x8c, 0x01},  /* RAW input */
        {0x8d, 0x10},
        {0x1c, 0x00},  /* RAW output, Iso transfer */
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},  /* turn off JPEG, Iso mode */
        {0x1d, 0x2e},  /* for Iso */
        {0x1d, 0x1e},
};

static const u8 ov361x_start_1024[][2] = {
        {0x12, 0x80},
        {0x13, 0xcf},
        {0x14, 0x40},
        {0x15, 0x00},
        {0x01, 0x80},
        {0x02, 0x80},
        {0x04, 0x70},
        {0x0d, 0x40},
        {0x0f, 0x47},
        {0x11, 0x81},
        {0x32, 0x36},
        {0x33, 0x0C},
        {0x34, 0x00},
        {0x35, 0x90},
        {0x12, 0x40},
        {0x17, 0x1f},
        {0x18, 0x5f},
        {0x19, 0x00},
        {0x1a, 0x68},
};
static const u8 ov361x_bridge_start_1024[][2] = {
        {0xf1, 0x60},  /* Hsize[7:0] */
        {0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
        {0x89, 0x04},  /* Vsize[7:0] */
        {0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
        {0x8b, 0x03},  /* for Iso */
        {0x8c, 0x01},  /* RAW input  */
        {0x8d, 0x10},
        {0x1c, 0x00},  /* RAW output, Iso transfer */
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},  /* turn off JPEG, Iso mode */
        {0x1d, 0x2e},  /* for Iso */
        {0x1d, 0x1e},
};

static const u8 ov361x_start_640[][2] = {
        {0x12, 0x80},
        {0x13, 0xcf},
        {0x14, 0x40},
        {0x15, 0x00},
        {0x01, 0x80},
        {0x02, 0x80},
        {0x04, 0x70},
        {0x0d, 0x40},
        {0x0f, 0x47},
        {0x11, 0x81},
        {0x32, 0x36},
        {0x33, 0x0C},
        {0x34, 0x00},
        {0x35, 0x90},
        {0x12, 0x40},
        {0x17, 0x1f},
        {0x18, 0x5f},
        {0x19, 0x00},
        {0x1a, 0x68},
};

static const u8 ov361x_bridge_start_640[][2] = {
        {0xf1, 0x60},  /* Hsize[7:0]*/
        {0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
        {0x89, 0x04},  /* Vsize[7:0] */
        {0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
        {0x8b, 0x03},  /* for Iso */
        {0x8c, 0x01},  /* RAW input */
        {0x8d, 0x10},
        {0x1c, 0x00},  /* RAW output, Iso transfer */
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},  /* turn off JPEG, Iso mode */
        {0x1d, 0x2e},  /* for Iso */
        {0x1d, 0x1e},
};

static const u8 ov361x_start_320[][2] = {
        {0x12, 0x80},
        {0x13, 0xcf},
        {0x14, 0x40},
        {0x15, 0x00},
        {0x01, 0x80},
        {0x02, 0x80},
        {0x04, 0x70},
        {0x0d, 0x40},
        {0x0f, 0x47},
        {0x11, 0x81},
        {0x32, 0x36},
        {0x33, 0x0C},
        {0x34, 0x00},
        {0x35, 0x90},
        {0x12, 0x40},
        {0x17, 0x1f},
        {0x18, 0x5f},
        {0x19, 0x00},
        {0x1a, 0x68},
};

static const u8 ov361x_bridge_start_320[][2] = {
        {0xf1, 0x60},  /* Hsize[7:0] */
        {0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
        {0x89, 0x04},  /* Vsize[7:0] */
        {0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
        {0x8b, 0x03},  /* for Iso */
        {0x8c, 0x01},  /* RAW input */
        {0x8d, 0x10},
        {0x1c, 0x00},  /* RAW output, Iso transfer; */
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},  /* turn off JPEG, Iso mode */
        {0x1d, 0x2e},  /* for Iso */
        {0x1d, 0x1e},
};

static const u8 ov361x_start_160[][2] = {
        {0x12, 0x80},
        {0x13, 0xcf},
        {0x14, 0x40},
        {0x15, 0x00},
        {0x01, 0x80},
        {0x02, 0x80},
        {0x04, 0x70},
        {0x0d, 0x40},
        {0x0f, 0x47},
        {0x11, 0x81},
        {0x32, 0x36},
        {0x33, 0x0C},
        {0x34, 0x00},
        {0x35, 0x90},
        {0x12, 0x40},
        {0x17, 0x1f},
        {0x18, 0x5f},
        {0x19, 0x00},
        {0x1a, 0x68},
};

static const u8 ov361x_bridge_start_160[][2] = {
        {0xf1, 0x60},  /* Hsize[7:0] */
        {0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
        {0x89, 0x04},  /* Vsize[7:0] */
        {0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
        {0x8b, 0x03},  /* for Iso */
        {0x8c, 0x01},  /* RAW input */
        {0x8d, 0x10},
        {0x1c, 0x00},  /* RAW output, Iso transfer */
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},  /* turn off JPEG, Iso mode */
        {0x1d, 0x2e},  /* for Iso */
        {0x1d, 0x1e},
};

static const u8 bridge_init[][2] = {
        {0x88, 0xf8},
        {0x89, 0xff},
        {0x76, 0x03},
        {0x92, 0x03},
        {0x95, 0x10},
        {0xe2, 0x00},
        {0xe7, 0x3e},
        {0x8d, 0x1c},
        {0x8e, 0x00},
        {0x8f, 0x00},
        {0x1f, 0x00},
        {0xc3, 0xf9},
        {0x89, 0xff},
        {0x88, 0xf8},
        {0x76, 0x03},
        {0x92, 0x01},
        {0x93, 0x18},
        {0x1c, 0x0a},
        {0x1d, 0x48},
        {0xc0, 0x50},
        {0xc1, 0x3c},
        {0x34, 0x05},
        {0xc2, 0x0c},
        {0xc3, 0xf9},
        {0x34, 0x05},
        {0xe7, 0x2e},
        {0x31, 0xf9},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0x25, 0x42},
        {0x94, 0x11},
};

static const u8 ov965x_init[][2] = {
        {0x12, 0x80},   /* com7 - SSCB reset */
        {0x00, 0x00},   /* gain */
        {0x01, 0x80},   /* blue */
        {0x02, 0x80},   /* red */
        {0x03, 0x1b},   /* vref */
        {0x04, 0x03},   /* com1 - exposure low bits */
        {0x0b, 0x57},   /* ver */
        {0x0e, 0x61},   /* com5 */
        {0x0f, 0x42},   /* com6 */
        {0x11, 0x00},   /* clkrc */
        {0x12, 0x02},   /* com7 - 15fps VGA YUYV */
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
        {0x14, 0x28},   /* com9 */
        {0x16, 0x24},   /* reg16 */
        {0x17, 0x1d},   /* hstart*/
        {0x18, 0xbd},   /* hstop */
        {0x19, 0x01},   /* vstrt */
        {0x1a, 0x81},   /* vstop*/
        {0x1e, 0x04},   /* mvfp */
        {0x24, 0x3c},   /* aew */
        {0x25, 0x36},   /* aeb */
        {0x26, 0x71},   /* vpt */
        {0x27, 0x08},   /* bbias */
        {0x28, 0x08},   /* gbbias */
        {0x29, 0x15},   /* gr com */
        {0x2a, 0x00},   /* exhch */
        {0x2b, 0x00},   /* exhcl */
        {0x2c, 0x08},   /* rbias */
        {0x32, 0xff},   /* href */
        {0x33, 0x00},   /* chlf */
        {0x34, 0x3f},   /* aref1 */
        {0x35, 0x00},   /* aref2 */
        {0x36, 0xf8},   /* aref3 */
        {0x38, 0x72},   /* adc2 */
        {0x39, 0x57},   /* aref4 */
        {0x3a, 0x80},   /* tslb - yuyv */
        {0x3b, 0xc4},   /* com11 - night mode 1/4 frame rate */
        {0x3d, 0x99},   /* com13 */
        {0x3f, 0xc1},   /* edge */
        {0x40, 0xc0},   /* com15 */
        {0x41, 0x40},   /* com16 */
        {0x42, 0xc0},   /* com17 */
        {0x43, 0x0a},   /* rsvd */
        {0x44, 0xf0},
        {0x45, 0x46},
        {0x46, 0x62},
        {0x47, 0x2a},
        {0x48, 0x3c},
        {0x4a, 0xfc},
        {0x4b, 0xfc},
        {0x4c, 0x7f},
        {0x4d, 0x7f},
        {0x4e, 0x7f},
        {0x4f, 0x98},   /* matrix */
        {0x50, 0x98},
        {0x51, 0x00},
        {0x52, 0x28},
        {0x53, 0x70},
        {0x54, 0x98},
        {0x58, 0x1a},   /* matrix coef sign */
        {0x59, 0x85},   /* AWB control */
        {0x5a, 0xa9},
        {0x5b, 0x64},
        {0x5c, 0x84},
        {0x5d, 0x53},
        {0x5e, 0x0e},
        {0x5f, 0xf0},   /* AWB blue limit */
        {0x60, 0xf0},   /* AWB red limit */
        {0x61, 0xf0},   /* AWB green limit */
        {0x62, 0x00},   /* lcc1 */
        {0x63, 0x00},   /* lcc2 */
        {0x64, 0x02},   /* lcc3 */
        {0x65, 0x16},   /* lcc4 */
        {0x66, 0x01},   /* lcc5 */
        {0x69, 0x02},   /* hv */
        {0x6b, 0x5a},   /* dbvl */
        {0x6c, 0x04},
        {0x6d, 0x55},
        {0x6e, 0x00},
        {0x6f, 0x9d},
        {0x70, 0x21},   /* dnsth */
        {0x71, 0x78},
        {0x72, 0x00},   /* poidx */
        {0x73, 0x01},   /* pckdv */
        {0x74, 0x3a},   /* xindx */
        {0x75, 0x35},   /* yindx */
        {0x76, 0x01},
        {0x77, 0x02},
        {0x7a, 0x12},   /* gamma curve */
        {0x7b, 0x08},
        {0x7c, 0x16},
        {0x7d, 0x30},
        {0x7e, 0x5e},
        {0x7f, 0x72},
        {0x80, 0x82},
        {0x81, 0x8e},
        {0x82, 0x9a},
        {0x83, 0xa4},
        {0x84, 0xac},
        {0x85, 0xb8},
        {0x86, 0xc3},
        {0x87, 0xd6},
        {0x88, 0xe6},
        {0x89, 0xf2},
        {0x8a, 0x03},
        {0x8c, 0x89},   /* com19 */
        {0x14, 0x28},   /* com9 */
        {0x90, 0x7d},
        {0x91, 0x7b},
        {0x9d, 0x03},   /* lcc6 */
        {0x9e, 0x04},   /* lcc7 */
        {0x9f, 0x7a},
        {0xa0, 0x79},
        {0xa1, 0x40},   /* aechm */
        {0xa4, 0x50},   /* com21 */
        {0xa5, 0x68},   /* com26 */
        {0xa6, 0x4a},   /* AWB green */
        {0xa8, 0xc1},   /* refa8 */
        {0xa9, 0xef},   /* refa9 */
        {0xaa, 0x92},
        {0xab, 0x04},
        {0xac, 0x80},   /* black level control */
        {0xad, 0x80},
        {0xae, 0x80},
        {0xaf, 0x80},
        {0xb2, 0xf2},
        {0xb3, 0x20},
        {0xb4, 0x20},   /* ctrlb4 */
        {0xb5, 0x00},
        {0xb6, 0xaf},
        {0xbb, 0xae},
        {0xbc, 0x7f},   /* ADC channel offsets */
        {0xdb, 0x7f},
        {0xbe, 0x7f},
        {0xbf, 0x7f},
        {0xc0, 0xe2},
        {0xc1, 0xc0},
        {0xc2, 0x01},
        {0xc3, 0x4e},
        {0xc6, 0x85},
        {0xc7, 0x80},   /* com24 */
        {0xc9, 0xe0},
        {0xca, 0xe8},
        {0xcb, 0xf0},
        {0xcc, 0xd8},
        {0xcd, 0xf1},
        {0x4f, 0x98},   /* matrix */
        {0x50, 0x98},
        {0x51, 0x00},
        {0x52, 0x28},
        {0x53, 0x70},
        {0x54, 0x98},
        {0x58, 0x1a},
        {0xff, 0x41},   /* read 41, write ff 00 */
        {0x41, 0x40},   /* com16 */

        {0xc5, 0x03},   /* 60 Hz banding filter */
        {0x6a, 0x02},   /* 50 Hz banding filter */

        {0x12, 0x62},   /* com7 - 30fps VGA YUV */
        {0x36, 0xfa},   /* aref3 */
        {0x69, 0x0a},   /* hv */
        {0x8c, 0x89},   /* com22 */
        {0x14, 0x28},   /* com9 */
        {0x3e, 0x0c},
        {0x41, 0x40},   /* com16 */
        {0x72, 0x00},
        {0x73, 0x00},
        {0x74, 0x3a},
        {0x75, 0x35},
        {0x76, 0x01},
        {0xc7, 0x80},
        {0x03, 0x12},   /* vref */
        {0x17, 0x16},   /* hstart */
        {0x18, 0x02},   /* hstop */
        {0x19, 0x01},   /* vstrt */
        {0x1a, 0x3d},   /* vstop */
        {0x32, 0xff},   /* href */
        {0xc0, 0xaa},
};

static const u8 bridge_init_2[][2] = {
        {0x94, 0xaa},
        {0xf1, 0x60},
        {0xe5, 0x04},
        {0xc0, 0x50},
        {0xc1, 0x3c},
        {0x8c, 0x00},
        {0x8d, 0x1c},
        {0x34, 0x05},

        {0xc2, 0x0c},
        {0xc3, 0xf9},
        {0xda, 0x01},
        {0x50, 0x00},
        {0x51, 0xa0},
        {0x52, 0x3c},
        {0x53, 0x00},
        {0x54, 0x00},
        {0x55, 0x00},
        {0x57, 0x00},
        {0x5c, 0x00},
        {0x5a, 0xa0},
        {0x5b, 0x78},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0x94, 0x11},
};

static const u8 ov965x_init_2[][2] = {
        {0x3b, 0xc4},
        {0x1e, 0x04},   /* mvfp */
        {0x13, 0xe0},   /* com8 */
        {0x00, 0x00},   /* gain */
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
        {0x11, 0x03},   /* clkrc */
        {0x6b, 0x5a},   /* dblv */
        {0x6a, 0x05},
        {0xc5, 0x07},
        {0xa2, 0x4b},
        {0xa3, 0x3e},
        {0x2d, 0x00},
        {0xff, 0x42},   /* read 42, write ff 00 */
        {0x42, 0xc0},   /* com17 */
        {0x2d, 0x00},
        {0xff, 0x42},   /* read 42, write ff 00 */
        {0x42, 0xc1},   /* com17 */
/* sharpness */
        {0x3f, 0x01},
        {0xff, 0x42},   /* read 42, write ff 00 */
        {0x42, 0xc1},   /* com17 */
/* saturation */
        {0x4f, 0x98},   /* matrix */
        {0x50, 0x98},
        {0x51, 0x00},
        {0x52, 0x28},
        {0x53, 0x70},
        {0x54, 0x98},
        {0x58, 0x1a},
        {0xff, 0x41},   /* read 41, write ff 00 */
        {0x41, 0x40},   /* com16 */
/* contrast */
        {0x56, 0x40},
/* brightness */
        {0x55, 0x8f},
/* expo */
        {0x10, 0x25},   /* aech - exposure high bits */
        {0xff, 0x13},   /* read 13, write ff 00 */
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
};

static const u8 ov971x_init[][2] = {
        {0x12, 0x80},
        {0x09, 0x10},
        {0x1e, 0x07},
        {0x5f, 0x18},
        {0x69, 0x04},
        {0x65, 0x2a},
        {0x68, 0x0a},
        {0x39, 0x28},
        {0x4d, 0x90},
        {0xc1, 0x80},
        {0x0c, 0x30},
        {0x6d, 0x02},
        {0x96, 0xf1},
        {0xbc, 0x68},
        {0x12, 0x00},
        {0x3b, 0x00},
        {0x97, 0x80},
        {0x17, 0x25},
        {0x18, 0xa2},
        {0x19, 0x01},
        {0x1a, 0xca},
        {0x03, 0x0a},
        {0x32, 0x07},
        {0x98, 0x40},   /*{0x98, 0x00},*/
        {0x99, 0xA0},   /*{0x99, 0x00},*/
        {0x9a, 0x01},   /*{0x9a, 0x00},*/
        {0x57, 0x00},
        {0x58, 0x78},   /*{0x58, 0xc8},*/
        {0x59, 0x50},   /*{0x59, 0xa0},*/
        {0x4c, 0x13},
        {0x4b, 0x36},
        {0x3d, 0x3c},
        {0x3e, 0x03},
        {0xbd, 0x50},   /*{0xbd, 0xa0},*/
        {0xbe, 0x78},   /*{0xbe, 0xc8},*/
        {0x4e, 0x55},
        {0x4f, 0x55},
        {0x50, 0x55},
        {0x51, 0x55},
        {0x24, 0x55},
        {0x25, 0x40},
        {0x26, 0xa1},
        {0x5c, 0x59},
        {0x5d, 0x00},
        {0x11, 0x00},
        {0x2a, 0x98},
        {0x2b, 0x06},
        {0x2d, 0x00},
        {0x2e, 0x00},
        {0x13, 0xa5},
        {0x14, 0x40},
        {0x4a, 0x00},
        {0x49, 0xce},
        {0x22, 0x03},
        {0x09, 0x00}
};

static const u8 ov965x_start_1_vga[][2] = {     /* same for qvga */
        {0x12, 0x62},   /* com7 - 30fps VGA YUV */
        {0x36, 0xfa},   /* aref3 */
        {0x69, 0x0a},   /* hv */
        {0x8c, 0x89},   /* com22 */
        {0x14, 0x28},   /* com9 */
        {0x3e, 0x0c},   /* com14 */
        {0x41, 0x40},   /* com16 */
        {0x72, 0x00},
        {0x73, 0x00},
        {0x74, 0x3a},
        {0x75, 0x35},
        {0x76, 0x01},
        {0xc7, 0x80},   /* com24 */
        {0x03, 0x12},   /* vref */
        {0x17, 0x16},   /* hstart */
        {0x18, 0x02},   /* hstop */
        {0x19, 0x01},   /* vstrt */
        {0x1a, 0x3d},   /* vstop */
        {0x32, 0xff},   /* href */
        {0xc0, 0xaa},
};

static const u8 ov965x_start_1_svga[][2] = {
        {0x12, 0x02},   /* com7 - YUYV - VGA 15 full resolution */
        {0x36, 0xf8},   /* aref3 */
        {0x69, 0x02},   /* hv */
        {0x8c, 0x0d},   /* com22 */
        {0x3e, 0x0c},   /* com14 */
        {0x41, 0x40},   /* com16 */
        {0x72, 0x00},
        {0x73, 0x01},
        {0x74, 0x3a},
        {0x75, 0x35},
        {0x76, 0x01},
        {0xc7, 0x80},   /* com24 */
        {0x03, 0x1b},   /* vref */
        {0x17, 0x1d},   /* hstart */
        {0x18, 0xbd},   /* hstop */
        {0x19, 0x01},   /* vstrt */
        {0x1a, 0x81},   /* vstop */
        {0x32, 0xff},   /* href */
        {0xc0, 0xe2},
};

static const u8 ov965x_start_1_xga[][2] = {
        {0x12, 0x02},   /* com7 */
        {0x36, 0xf8},   /* aref3 */
        {0x69, 0x02},   /* hv */
        {0x8c, 0x89},   /* com22 */
        {0x14, 0x28},   /* com9 */
        {0x3e, 0x0c},   /* com14 */
        {0x41, 0x40},   /* com16 */
        {0x72, 0x00},
        {0x73, 0x01},
        {0x74, 0x3a},
        {0x75, 0x35},
        {0x76, 0x01},
        {0xc7, 0x80},   /* com24 */
        {0x03, 0x1b},   /* vref */
        {0x17, 0x1d},   /* hstart */
        {0x18, 0xbd},   /* hstop */
        {0x19, 0x01},   /* vstrt */
        {0x1a, 0x81},   /* vstop */
        {0x32, 0xff},   /* href */
        {0xc0, 0xe2},
};

static const u8 ov965x_start_1_sxga[][2] = {
        {0x12, 0x02},   /* com7 */
        {0x36, 0xf8},   /* aref3 */
        {0x69, 0x02},   /* hv */
        {0x8c, 0x89},   /* com22 */
        {0x14, 0x28},   /* com9 */
        {0x3e, 0x0c},   /* com14 */
        {0x41, 0x40},   /* com16 */
        {0x72, 0x00},
        {0x73, 0x01},
        {0x74, 0x3a},
        {0x75, 0x35},
        {0x76, 0x01},
        {0xc7, 0x80},   /* com24 */
        {0x03, 0x1b},   /* vref */
        {0x17, 0x1d},   /* hstart */
        {0x18, 0x02},   /* hstop */
        {0x19, 0x01},   /* vstrt */
        {0x1a, 0x81},   /* vstop */
        {0x32, 0xff},   /* href */
        {0xc0, 0xe2},
};

static const u8 bridge_start_qvga[][2] = {
        {0x94, 0xaa},
        {0xf1, 0x60},
        {0xe5, 0x04},
        {0xc0, 0x50},
        {0xc1, 0x3c},
        {0x8c, 0x00},
        {0x8d, 0x1c},
        {0x34, 0x05},

        {0xc2, 0x4c},
        {0xc3, 0xf9},
        {0xda, 0x00},
        {0x50, 0x00},
        {0x51, 0xa0},
        {0x52, 0x78},
        {0x53, 0x00},
        {0x54, 0x00},
        {0x55, 0x00},
        {0x57, 0x00},
        {0x5c, 0x00},
        {0x5a, 0x50},
        {0x5b, 0x3c},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0x94, 0x11},
};

static const u8 bridge_start_vga[][2] = {
        {0x94, 0xaa},
        {0xf1, 0x60},
        {0xe5, 0x04},
        {0xc0, 0x50},
        {0xc1, 0x3c},
        {0x8c, 0x00},
        {0x8d, 0x1c},
        {0x34, 0x05},
        {0xc2, 0x0c},
        {0xc3, 0xf9},
        {0xda, 0x01},
        {0x50, 0x00},
        {0x51, 0xa0},
        {0x52, 0x3c},
        {0x53, 0x00},
        {0x54, 0x00},
        {0x55, 0x00},
        {0x57, 0x00},
        {0x5c, 0x00},
        {0x5a, 0xa0},
        {0x5b, 0x78},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0x94, 0x11},
};

static const u8 bridge_start_svga[][2] = {
        {0x94, 0xaa},
        {0xf1, 0x60},
        {0xe5, 0x04},
        {0xc0, 0xa0},
        {0xc1, 0x80},
        {0x8c, 0x00},
        {0x8d, 0x1c},
        {0x34, 0x05},
        {0xc2, 0x4c},
        {0xc3, 0xf9},
        {0x50, 0x00},
        {0x51, 0x40},
        {0x52, 0x00},
        {0x53, 0x00},
        {0x54, 0x00},
        {0x55, 0x88},
        {0x57, 0x00},
        {0x5c, 0x00},
        {0x5a, 0xc8},
        {0x5b, 0x96},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0xda, 0x00},
        {0x94, 0x11},
};

static const u8 bridge_start_xga[][2] = {
        {0x94, 0xaa},
        {0xf1, 0x60},
        {0xe5, 0x04},
        {0xc0, 0xa0},
        {0xc1, 0x80},
        {0x8c, 0x00},
        {0x8d, 0x1c},
        {0x34, 0x05},
        {0xc2, 0x4c},
        {0xc3, 0xf9},
        {0x50, 0x00},
        {0x51, 0x40},
        {0x52, 0x00},
        {0x53, 0x00},
        {0x54, 0x00},
        {0x55, 0x88},
        {0x57, 0x00},
        {0x5c, 0x01},
        {0x5a, 0x00},
        {0x5b, 0xc0},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0xda, 0x01},
        {0x94, 0x11},
};

static const u8 bridge_start_sxga[][2] = {
        {0x94, 0xaa},
        {0xf1, 0x60},
        {0xe5, 0x04},
        {0xc0, 0xa0},
        {0xc1, 0x80},
        {0x8c, 0x00},
        {0x8d, 0x1c},
        {0x34, 0x05},
        {0xc2, 0x0c},
        {0xc3, 0xf9},
        {0xda, 0x00},
        {0x35, 0x02},
        {0xd9, 0x10},
        {0x94, 0x11},
};

static const u8 ov965x_start_2_qvga[][2] = {
        {0x3b, 0xe4},   /* com11 - night mode 1/4 frame rate */
        {0x1e, 0x04},   /* mvfp */
        {0x13, 0xe0},   /* com8 */
        {0x00, 0x00},
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
        {0x11, 0x01},   /* clkrc */
        {0x6b, 0x5a},   /* dblv */
        {0x6a, 0x02},   /* 50 Hz banding filter */
        {0xc5, 0x03},   /* 60 Hz banding filter */
        {0xa2, 0x96},   /* bd50 */
        {0xa3, 0x7d},   /* bd60 */

        {0xff, 0x13},   /* read 13, write ff 00 */
        {0x13, 0xe7},
        {0x3a, 0x80},   /* tslb - yuyv */
};

static const u8 ov965x_start_2_vga[][2] = {
        {0x3b, 0xc4},   /* com11 - night mode 1/4 frame rate */
        {0x1e, 0x04},   /* mvfp */
        {0x13, 0xe0},   /* com8 */
        {0x00, 0x00},
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
        {0x11, 0x03},   /* clkrc */
        {0x6b, 0x5a},   /* dblv */
        {0x6a, 0x05},   /* 50 Hz banding filter */
        {0xc5, 0x07},   /* 60 Hz banding filter */
        {0xa2, 0x4b},   /* bd50 */
        {0xa3, 0x3e},   /* bd60 */

        {0x2d, 0x00},   /* advfl */
};

static const u8 ov965x_start_2_svga[][2] = {    /* same for xga */
        {0x3b, 0xc4},   /* com11 - night mode 1/4 frame rate */
        {0x1e, 0x04},   /* mvfp */
        {0x13, 0xe0},   /* com8 */
        {0x00, 0x00},
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
        {0x11, 0x01},   /* clkrc */
        {0x6b, 0x5a},   /* dblv */
        {0x6a, 0x0c},   /* 50 Hz banding filter */
        {0xc5, 0x0f},   /* 60 Hz banding filter */
        {0xa2, 0x4e},   /* bd50 */
        {0xa3, 0x41},   /* bd60 */
};

static const u8 ov965x_start_2_sxga[][2] = {
        {0x13, 0xe0},   /* com8 */
        {0x00, 0x00},
        {0x13, 0xe7},   /* com8 - everything (AGC, AWB and AEC) */
        {0x3b, 0xc4},   /* com11 - night mode 1/4 frame rate */
        {0x1e, 0x04},   /* mvfp */
        {0x11, 0x01},   /* clkrc */
        {0x6b, 0x5a},   /* dblv */
        {0x6a, 0x0c},   /* 50 Hz banding filter */
        {0xc5, 0x0f},   /* 60 Hz banding filter */
        {0xa2, 0x4e},   /* bd50 */
        {0xa3, 0x41},   /* bd60 */
};

static const u8 ov562x_init[][2] = {
        {0x88, 0x20},
        {0x89, 0x0a},
        {0x8a, 0x90},
        {0x8b, 0x06},
        {0x8c, 0x01},
        {0x8d, 0x10},
        {0x1c, 0x00},
        {0x1d, 0x48},
        {0x1d, 0x00},
        {0x1d, 0xff},
        {0x1c, 0x0a},
        {0x1d, 0x2e},
        {0x1d, 0x1e},
};

static const u8 ov562x_init_2[][2] = {
        {0x12, 0x80},
        {0x11, 0x41},
        {0x13, 0x00},
        {0x10, 0x1e},
        {0x3b, 0x07},
        {0x5b, 0x40},
        {0x39, 0x07},
        {0x53, 0x02},
        {0x54, 0x60},
        {0x04, 0x20},
        {0x27, 0x04},
        {0x3d, 0x40},
        {0x36, 0x00},
        {0xc5, 0x04},
        {0x4e, 0x00},
        {0x4f, 0x93},
        {0x50, 0x7b},
        {0xca, 0x0c},
        {0xcb, 0x0f},
        {0x39, 0x07},
        {0x4a, 0x10},
        {0x3e, 0x0a},
        {0x3d, 0x00},
        {0x0c, 0x38},
        {0x38, 0x90},
        {0x46, 0x30},
        {0x4f, 0x93},
        {0x50, 0x7b},
        {0xab, 0x00},
        {0xca, 0x0c},
        {0xcb, 0x0f},
        {0x37, 0x02},
        {0x44, 0x48},
        {0x8d, 0x44},
        {0x2a, 0x00},
        {0x2b, 0x00},
        {0x32, 0x00},
        {0x38, 0x90},
        {0x53, 0x02},
        {0x54, 0x60},
        {0x12, 0x00},
        {0x17, 0x12},
        {0x18, 0xb4},
        {0x19, 0x0c},
        {0x1a, 0xf4},
        {0x03, 0x4a},
        {0x89, 0x20},
        {0x83, 0x80},
        {0xb7, 0x9d},
        {0xb6, 0x11},
        {0xb5, 0x55},
        {0xb4, 0x00},
        {0xa9, 0xf0},
        {0xa8, 0x0a},
        {0xb8, 0xf0},
        {0xb9, 0xf0},
        {0xba, 0xf0},
        {0x81, 0x07},
        {0x63, 0x44},
        {0x13, 0xc7},
        {0x14, 0x60},
        {0x33, 0x75},
        {0x2c, 0x00},
        {0x09, 0x00},
        {0x35, 0x30},
        {0x27, 0x04},
        {0x3c, 0x07},
        {0x3a, 0x0a},
        {0x3b, 0x07},
        {0x01, 0x40},
        {0x02, 0x40},
        {0x16, 0x40},
        {0x52, 0xb0},
        {0x51, 0x83},
        {0x21, 0xbb},
        {0x22, 0x10},
        {0x23, 0x03},
        {0x35, 0x38},
        {0x20, 0x90},
        {0x28, 0x30},
        {0x73, 0xe1},
        {0x6c, 0x00},
        {0x6d, 0x80},
        {0x6e, 0x00},
        {0x70, 0x04},
        {0x71, 0x00},
        {0x8d, 0x04},
        {0x64, 0x00},
        {0x65, 0x00},
        {0x66, 0x00},
        {0x67, 0x00},
        {0x68, 0x00},
        {0x69, 0x00},
        {0x6a, 0x00},
        {0x6b, 0x00},
        {0x71, 0x94},
        {0x74, 0x20},
        {0x80, 0x09},
        {0x85, 0xc0},
};

static void reg_w_i(struct gspca_dev *gspca_dev, u16 reg, u8 val)
{
        struct usb_device *udev = gspca_dev->dev;
        int ret;

        if (gspca_dev->usb_err < 0)
                return;
        gspca_dev->usb_buf[0] = val;
        ret = usb_control_msg(udev,
                              usb_sndctrlpipe(udev, 0),
                              0x01,
                              USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                              0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
        if (ret < 0) {
                pr_err("reg_w failed %d\n", ret);
                gspca_dev->usb_err = ret;
        }
}

static void reg_w(struct gspca_dev *gspca_dev, u16 reg, u8 val)
{
        gspca_dbg(gspca_dev, D_USBO, "reg_w [%04x] = %02x\n", reg, val);
        reg_w_i(gspca_dev, reg, val);
}

static u8 reg_r(struct gspca_dev *gspca_dev, u16 reg)
{
        struct usb_device *udev = gspca_dev->dev;
        int ret;

        if (gspca_dev->usb_err < 0)
                return 0;
        ret = usb_control_msg(udev,
                              usb_rcvctrlpipe(udev, 0),
                              0x01,
                              USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                              0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
        gspca_dbg(gspca_dev, D_USBI, "reg_r [%04x] -> %02x\n",
                  reg, gspca_dev->usb_buf[0]);
        if (ret < 0) {
                pr_err("reg_r err %d\n", ret);
                gspca_dev->usb_err = ret;
                return 0;
        }
        return gspca_dev->usb_buf[0];
}

static int sccb_check_status(struct gspca_dev *gspca_dev)
{
        u8 data;
        int i;

        for (i = 0; i < 5; i++) {
                msleep(20);
                data = reg_r(gspca_dev, OV534_REG_STATUS);

                switch (data) {
                case 0x00:
                        return 1;
                case 0x04:
                        return 0;
                case 0x03:
                        break;
                default:
                        gspca_dbg(gspca_dev, D_USBI|D_USBO,
                                  "sccb status 0x%02x, attempt %d/5\n",
                                  data, i + 1);
                }
        }
        return 0;
}

static void sccb_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
{
        gspca_dbg(gspca_dev, D_USBO, "sccb_write [%02x] = %02x\n", reg, val);
        reg_w_i(gspca_dev, OV534_REG_SUBADDR, reg);
        reg_w_i(gspca_dev, OV534_REG_WRITE, val);
        reg_w_i(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);

        if (!sccb_check_status(gspca_dev))
                pr_err("sccb_write failed\n");
}

static u8 sccb_read(struct gspca_dev *gspca_dev, u16 reg)
{
        reg_w(gspca_dev, OV534_REG_SUBADDR, reg);
        reg_w(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
        if (!sccb_check_status(gspca_dev))
                pr_err("sccb_read failed 1\n");

        reg_w(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
        if (!sccb_check_status(gspca_dev))
                pr_err("sccb_read failed 2\n");

        return reg_r(gspca_dev, OV534_REG_READ);
}

/* output a bridge sequence (reg - val) */
static void reg_w_array(struct gspca_dev *gspca_dev,
                        const u8 (*data)[2], int len)
{
        while (--len >= 0) {
                reg_w(gspca_dev, (*data)[0], (*data)[1]);
                data++;
        }
}

/* output a sensor sequence (reg - val) */
static void sccb_w_array(struct gspca_dev *gspca_dev,
                        const u8 (*data)[2], int len)
{
        while (--len >= 0) {
                if ((*data)[0] != 0xff) {
                        sccb_write(gspca_dev, (*data)[0], (*data)[1]);
                } else {
                        sccb_read(gspca_dev, (*data)[1]);
                        sccb_write(gspca_dev, 0xff, 0x00);
                }
                data++;
        }
}

/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 * (direction and output)? */
static void set_led(struct gspca_dev *gspca_dev, int status)
{
        u8 data;

        gspca_dbg(gspca_dev, D_CONF, "led status: %d\n", status);

        data = reg_r(gspca_dev, 0x21);
        data |= 0x80;
        reg_w(gspca_dev, 0x21, data);

        data = reg_r(gspca_dev, 0x23);
        if (status)
                data |= 0x80;
        else
                data &= ~0x80;

        reg_w(gspca_dev, 0x23, data);

        if (!status) {
                data = reg_r(gspca_dev, 0x21);
                data &= ~0x80;
                reg_w(gspca_dev, 0x21, data);
        }
}

static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
{
        struct sd *sd = (struct sd *) gspca_dev;
        u8 val;
        s8 sval;

        if (sd->sensor == SENSOR_OV562x) {
                sval = brightness;
                val = 0x76;
                val += sval;
                sccb_write(gspca_dev, 0x24, val);
                val = 0x6a;
                val += sval;
                sccb_write(gspca_dev, 0x25, val);
                if (sval < -40)
                        val = 0x71;
                else if (sval < 20)
                        val = 0x94;
                else
                        val = 0xe6;
                sccb_write(gspca_dev, 0x26, val);
        } else {
                val = brightness;
                if (val < 8)
                        val = 15 - val;         /* f .. 8 */
                else
                        val = val - 8;          /* 0 .. 7 */
                sccb_write(gspca_dev, 0x55,     /* brtn - brightness adjustment */
                                0x0f | (val << 4));
        }
}

static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
{
        sccb_write(gspca_dev, 0x56,     /* cnst1 - contrast 1 ctrl coeff */
                        val << 4);
}

static void setautogain(struct gspca_dev *gspca_dev, s32 autogain)
{
        u8 val;

/*fixme: should adjust agc/awb/aec by different controls */
        val = sccb_read(gspca_dev, 0x13);               /* com8 */
        sccb_write(gspca_dev, 0xff, 0x00);
        if (autogain)
                val |= 0x05;            /* agc & aec */
        else
                val &= 0xfa;
        sccb_write(gspca_dev, 0x13, val);
}

static void setexposure(struct gspca_dev *gspca_dev, s32 exposure)
{
        static const u8 expo[4] = {0x00, 0x25, 0x38, 0x5e};
        u8 val;

        sccb_write(gspca_dev, 0x10, expo[exposure]);    /* aec[9:2] */

        val = sccb_read(gspca_dev, 0x13);               /* com8 */
        sccb_write(gspca_dev, 0xff, 0x00);
        sccb_write(gspca_dev, 0x13, val);

        val = sccb_read(gspca_dev, 0xa1);               /* aech */
        sccb_write(gspca_dev, 0xff, 0x00);
        sccb_write(gspca_dev, 0xa1, val & 0xe0);        /* aec[15:10] = 0 */
}

static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
{
        if (val < 0) {                          /* auto */
                val = sccb_read(gspca_dev, 0x42);       /* com17 */
                sccb_write(gspca_dev, 0xff, 0x00);
                sccb_write(gspca_dev, 0x42, val | 0x40);
                                /* Edge enhancement strength auto adjust */
                return;
        }
        if (val != 0)
                val = 1 << (val - 1);
        sccb_write(gspca_dev, 0x3f,     /* edge - edge enhance. factor */
                        val);
        val = sccb_read(gspca_dev, 0x42);               /* com17 */
        sccb_write(gspca_dev, 0xff, 0x00);
        sccb_write(gspca_dev, 0x42, val & 0xbf);
}

static void setsatur(struct gspca_dev *gspca_dev, s32 val)
{
        u8 val1, val2, val3;
        static const u8 matrix[5][2] = {
                {0x14, 0x38},
                {0x1e, 0x54},
                {0x28, 0x70},
                {0x32, 0x8c},
                {0x48, 0x90}
        };

        val1 = matrix[val][0];
        val2 = matrix[val][1];
        val3 = val1 + val2;
        sccb_write(gspca_dev, 0x4f, val3);      /* matrix coeff */
        sccb_write(gspca_dev, 0x50, val3);
        sccb_write(gspca_dev, 0x51, 0x00);
        sccb_write(gspca_dev, 0x52, val1);
        sccb_write(gspca_dev, 0x53, val2);
        sccb_write(gspca_dev, 0x54, val3);
        sccb_write(gspca_dev, 0x58, 0x1a);      /* mtxs - coeff signs */

        val1 = sccb_read(gspca_dev, 0x41);      /* com16 */
        sccb_write(gspca_dev, 0xff, 0x00);
        sccb_write(gspca_dev, 0x41, val1);
}

static void setlightfreq(struct gspca_dev *gspca_dev, s32 freq)
{
        u8 val;

        val = sccb_read(gspca_dev, 0x13);               /* com8 */
        sccb_write(gspca_dev, 0xff, 0x00);
        if (freq == 0) {
                sccb_write(gspca_dev, 0x13, val & 0xdf);
                return;
        }
        sccb_write(gspca_dev, 0x13, val | 0x20);

        val = sccb_read(gspca_dev, 0x42);               /* com17 */
        sccb_write(gspca_dev, 0xff, 0x00);
        if (freq == 1)
                val |= 0x01;
        else
                val &= 0xfe;
        sccb_write(gspca_dev, 0x42, val);
}

/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
                     const struct usb_device_id *id)
{
        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;
        u16 sensor_id;

        /* reset bridge */
        reg_w(gspca_dev, 0xe7, 0x3a);
        reg_w(gspca_dev, 0xe0, 0x08);
        msleep(100);

        /* initialize the sensor address */
        reg_w(gspca_dev, OV534_REG_ADDRESS, 0x60);

        /* reset sensor */
        sccb_write(gspca_dev, 0x12, 0x80);
        msleep(10);

        /* probe the sensor */
        sccb_read(gspca_dev, 0x0a);
        sensor_id = sccb_read(gspca_dev, 0x0a) << 8;
        sccb_read(gspca_dev, 0x0b);
        sensor_id |= sccb_read(gspca_dev, 0x0b);
        gspca_dbg(gspca_dev, D_PROBE, "Sensor ID: %04x\n", sensor_id);

        /* initialize */
        if ((sensor_id & 0xfff0) == 0x9650) {
                sd->sensor = SENSOR_OV965x;

                gspca_dev->cam.cam_mode = ov965x_mode;
                gspca_dev->cam.nmodes = ARRAY_SIZE(ov965x_mode);

                reg_w_array(gspca_dev, bridge_init,
                                ARRAY_SIZE(bridge_init));
                sccb_w_array(gspca_dev, ov965x_init,
                                ARRAY_SIZE(ov965x_init));
                reg_w_array(gspca_dev, bridge_init_2,
                                ARRAY_SIZE(bridge_init_2));
                sccb_w_array(gspca_dev, ov965x_init_2,
                                ARRAY_SIZE(ov965x_init_2));
                reg_w(gspca_dev, 0xe0, 0x00);
                reg_w(gspca_dev, 0xe0, 0x01);
                set_led(gspca_dev, 0);
                reg_w(gspca_dev, 0xe0, 0x00);
        } else if ((sensor_id & 0xfff0) == 0x9710) {
                const char *p;
                int l;

                sd->sensor = SENSOR_OV971x;

                gspca_dev->cam.cam_mode = ov971x_mode;
                gspca_dev->cam.nmodes = ARRAY_SIZE(ov971x_mode);

                gspca_dev->cam.bulk = 1;
                gspca_dev->cam.bulk_size = 16384;
                gspca_dev->cam.bulk_nurbs = 2;

                sccb_w_array(gspca_dev, ov971x_init,
                                ARRAY_SIZE(ov971x_init));

                /* set video format on bridge processor */
                /* access bridge processor's video format registers at: 0x00 */
                reg_w(gspca_dev, 0x1c, 0x00);
                /*set register: 0x00 is 'RAW8', 0x40 is 'YUV422' (YUYV?)*/
                reg_w(gspca_dev, 0x1d, 0x00);

                /* Will W. specific stuff
                 * set VSYNC to
                 *      output (0x1f) if first webcam
                 *      input (0x17) if 2nd or 3rd webcam */
                p = video_device_node_name(&gspca_dev->vdev);
                l = strlen(p) - 1;
                if (p[l] == '0')
                        reg_w(gspca_dev, 0x56, 0x1f);
                else
                        reg_w(gspca_dev, 0x56, 0x17);
        } else if ((sensor_id & 0xfff0) == 0x5620) {
                sd->sensor = SENSOR_OV562x;
                gspca_dev->cam.cam_mode = ov562x_mode;
                gspca_dev->cam.nmodes = ARRAY_SIZE(ov562x_mode);

                reg_w_array(gspca_dev, ov562x_init,
                                ARRAY_SIZE(ov562x_init));
                sccb_w_array(gspca_dev, ov562x_init_2,
                                ARRAY_SIZE(ov562x_init_2));
                reg_w(gspca_dev, 0xe0, 0x00);
        } else if ((sensor_id & 0xfff0) == 0x3610) {
                sd->sensor = SENSOR_OV361x;
                gspca_dev->cam.cam_mode = ov361x_mode;
                gspca_dev->cam.nmodes = ARRAY_SIZE(ov361x_mode);
                reg_w(gspca_dev, 0xe7, 0x3a);
                reg_w(gspca_dev, 0xf1, 0x60);
                sccb_write(gspca_dev, 0x12, 0x80);
        } else {
                pr_err("Unknown sensor %04x", sensor_id);
                return -EINVAL;
        }

        return gspca_dev->usb_err;
}

static int sd_start_ov361x(struct gspca_dev *gspca_dev)
{
        sccb_write(gspca_dev, 0x12, 0x80);
        msleep(20);
        switch (gspca_dev->curr_mode % (ov361x_last)) {
        case ov361x_2048:
                reg_w_array(gspca_dev, ov361x_bridge_start_2048,
                            ARRAY_SIZE(ov361x_bridge_start_2048));
                sccb_w_array(gspca_dev, ov361x_start_2048,
                             ARRAY_SIZE(ov361x_start_2048));
                break;
        case ov361x_1600:
                reg_w_array(gspca_dev, ov361x_bridge_start_1600,
                            ARRAY_SIZE(ov361x_bridge_start_1600));
                sccb_w_array(gspca_dev, ov361x_start_1600,
                             ARRAY_SIZE(ov361x_start_1600));
                break;
        case ov361x_1024:
                reg_w_array(gspca_dev, ov361x_bridge_start_1024,
                            ARRAY_SIZE(ov361x_bridge_start_1024));
                sccb_w_array(gspca_dev, ov361x_start_1024,
                             ARRAY_SIZE(ov361x_start_1024));
                break;
        case ov361x_640:
                reg_w_array(gspca_dev, ov361x_bridge_start_640,
                            ARRAY_SIZE(ov361x_bridge_start_640));
                sccb_w_array(gspca_dev, ov361x_start_640,
                             ARRAY_SIZE(ov361x_start_640));
                break;
        case ov361x_320:
                reg_w_array(gspca_dev, ov361x_bridge_start_320,
                            ARRAY_SIZE(ov361x_bridge_start_320));
                sccb_w_array(gspca_dev, ov361x_start_320,
                             ARRAY_SIZE(ov361x_start_320));
                break;
        case ov361x_160:
                reg_w_array(gspca_dev, ov361x_bridge_start_160,
                            ARRAY_SIZE(ov361x_bridge_start_160));
                sccb_w_array(gspca_dev, ov361x_start_160,
                             ARRAY_SIZE(ov361x_start_160));
                break;
        }
        reg_w(gspca_dev, 0xe0, 0x00); /* start transfer */

        return gspca_dev->usb_err;
}

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

        if (sd->sensor == SENSOR_OV971x)
                return gspca_dev->usb_err;
        if (sd->sensor == SENSOR_OV562x)
                return gspca_dev->usb_err;
        if (sd->sensor == SENSOR_OV361x)
                return sd_start_ov361x(gspca_dev);

        switch (gspca_dev->curr_mode) {
        case QVGA_MODE:                 /* 320x240 */
                sccb_w_array(gspca_dev, ov965x_start_1_vga,
                                ARRAY_SIZE(ov965x_start_1_vga));
                reg_w_array(gspca_dev, bridge_start_qvga,
                                ARRAY_SIZE(bridge_start_qvga));
                sccb_w_array(gspca_dev, ov965x_start_2_qvga,
                                ARRAY_SIZE(ov965x_start_2_qvga));
                break;
        case VGA_MODE:                  /* 640x480 */
                sccb_w_array(gspca_dev, ov965x_start_1_vga,
                                ARRAY_SIZE(ov965x_start_1_vga));
                reg_w_array(gspca_dev, bridge_start_vga,
                                ARRAY_SIZE(bridge_start_vga));
                sccb_w_array(gspca_dev, ov965x_start_2_vga,
                                ARRAY_SIZE(ov965x_start_2_vga));
                break;
        case SVGA_MODE:                 /* 800x600 */
                sccb_w_array(gspca_dev, ov965x_start_1_svga,
                                ARRAY_SIZE(ov965x_start_1_svga));
                reg_w_array(gspca_dev, bridge_start_svga,
                                ARRAY_SIZE(bridge_start_svga));
                sccb_w_array(gspca_dev, ov965x_start_2_svga,
                                ARRAY_SIZE(ov965x_start_2_svga));
                break;
        case XGA_MODE:                  /* 1024x768 */
                sccb_w_array(gspca_dev, ov965x_start_1_xga,
                                ARRAY_SIZE(ov965x_start_1_xga));
                reg_w_array(gspca_dev, bridge_start_xga,
                                ARRAY_SIZE(bridge_start_xga));
                sccb_w_array(gspca_dev, ov965x_start_2_svga,
                                ARRAY_SIZE(ov965x_start_2_svga));
                break;
        default:
/*      case SXGA_MODE:                  * 1280x1024 */
                sccb_w_array(gspca_dev, ov965x_start_1_sxga,
                                ARRAY_SIZE(ov965x_start_1_sxga));
                reg_w_array(gspca_dev, bridge_start_sxga,
                                ARRAY_SIZE(bridge_start_sxga));
                sccb_w_array(gspca_dev, ov965x_start_2_sxga,
                                ARRAY_SIZE(ov965x_start_2_sxga));
                break;
        }

        reg_w(gspca_dev, 0xe0, 0x00);
        reg_w(gspca_dev, 0xe0, 0x00);
        set_led(gspca_dev, 1);
        return gspca_dev->usb_err;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
        if (((struct sd *)gspca_dev)->sensor == SENSOR_OV361x) {
                reg_w(gspca_dev, 0xe0, 0x01); /* stop transfer */
                /* reg_w(gspca_dev, 0x31, 0x09); */
                return;
        }
        reg_w(gspca_dev, 0xe0, 0x01);
        set_led(gspca_dev, 0);
        reg_w(gspca_dev, 0xe0, 0x00);
}

/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
#define UVC_STREAM_EOH  (1 << 7)
#define UVC_STREAM_ERR  (1 << 6)
#define UVC_STREAM_STI  (1 << 5)
#define UVC_STREAM_RES  (1 << 4)
#define UVC_STREAM_SCR  (1 << 3)
#define UVC_STREAM_PTS  (1 << 2)
#define UVC_STREAM_EOF  (1 << 1)
#define UVC_STREAM_FID  (1 << 0)

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
                        u8 *data, int len)
{
        struct sd *sd = (struct sd *) gspca_dev;
        __u32 this_pts;
        u8 this_fid;
        int remaining_len = len;
        int payload_len;

        payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
        do {
                len = min(remaining_len, payload_len);

                /* Payloads are prefixed with a UVC-style header.  We
                   consider a frame to start when the FID toggles, or the PTS
                   changes.  A frame ends when EOF is set, and we've received
                   the correct number of bytes. */

                /* Verify UVC header.  Header length is always 12 */
                if (data[0] != 12 || len < 12) {
                        gspca_dbg(gspca_dev, D_PACK, "bad header\n");
                        goto discard;
                }

                /* Check errors */
                if (data[1] & UVC_STREAM_ERR) {
                        gspca_dbg(gspca_dev, D_PACK, "payload error\n");
                        goto discard;
                }

                /* Extract PTS and FID */
                if (!(data[1] & UVC_STREAM_PTS)) {
                        gspca_dbg(gspca_dev, D_PACK, "PTS not present\n");
                        goto discard;
                }
                this_pts = (data[5] << 24) | (data[4] << 16)
                                                | (data[3] << 8) | data[2];
                this_fid = data[1] & UVC_STREAM_FID;

                /* If PTS or FID has changed, start a new frame. */
                if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
                        if (gspca_dev->last_packet_type == INTER_PACKET)
                                gspca_frame_add(gspca_dev, LAST_PACKET,
                                                NULL, 0);
                        sd->last_pts = this_pts;
                        sd->last_fid = this_fid;
                        gspca_frame_add(gspca_dev, FIRST_PACKET,
                                        data + 12, len - 12);
                /* If this packet is marked as EOF, end the frame */
                } else if (data[1] & UVC_STREAM_EOF) {
                        sd->last_pts = 0;
                        gspca_frame_add(gspca_dev, LAST_PACKET,
                                        data + 12, len - 12);
                } else {

                        /* Add the data from this payload */
                        gspca_frame_add(gspca_dev, INTER_PACKET,
                                        data + 12, len - 12);
                }

                /* Done this payload */
                goto scan_next;

discard:
                /* Discard data until a new frame starts. */
                gspca_dev->last_packet_type = DISCARD_PACKET;

scan_next:
                remaining_len -= len;
                data += len;
        } while (remaining_len > 0);
}

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:
                setsatur(gspca_dev, ctrl->val);
                break;
        case V4L2_CID_POWER_LINE_FREQUENCY:
                setlightfreq(gspca_dev, ctrl->val);
                break;
        case V4L2_CID_SHARPNESS:
                setsharpness(gspca_dev, ctrl->val);
                break;
        case V4L2_CID_AUTOGAIN:
                if (ctrl->is_new)
                        setautogain(gspca_dev, ctrl->val);
                if (!ctrl->val && gspca_dev->exposure->is_new)
                        setexposure(gspca_dev, gspca_dev->exposure->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;

        if (sd->sensor == SENSOR_OV971x)
                return 0;
        if (sd->sensor == SENSOR_OV361x)
                return 0;
        gspca_dev->vdev.ctrl_handler = hdl;
        v4l2_ctrl_handler_init(hdl, 7);
        if (sd->sensor == SENSOR_OV562x) {
                v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_BRIGHTNESS, -90, 90, 1, 0);
        } else {
                v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_BRIGHTNESS, 0, 15, 1, 7);
                v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_CONTRAST, 0, 15, 1, 3);
                v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_SATURATION, 0, 4, 1, 2);
                /* -1 = auto */
                v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_SHARPNESS, -1, 4, 1, -1);
                gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
                gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
                        V4L2_CID_EXPOSURE, 0, 3, 1, 0);
                v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
                        V4L2_CID_POWER_LINE_FREQUENCY,
                        V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0);
                v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false);
        }

        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(0x05a9, 0x8065)},
        {USB_DEVICE(0x06f8, 0x3003)},
        {USB_DEVICE(0x05a9, 0x1550)},
        {}
};

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);