/*
 * USB IBM C-It Video Camera driver
 *
 * Supports Xirlink C-It Video Camera, IBM PC Camera,
 * IBM NetCamera and Veo Stingray.
 *
 * This driver is based on earlier work of:
 *
 * (C) Copyright 1999 Johannes Erdfelt
 * (C) Copyright 1999 Randy Dunlap
 *
 * 5/24/00 Removed optional (and unnecessary) locking of the driver while
 * the device remains plugged in. Corrected race conditions in ibmcam_open
 * and ibmcam_probe() routines using this as a guideline:
 *
 * (2) The big kernel lock is automatically released when a process sleeps
 *   in the kernel and is automatically reacquired on reschedule if the
 *   process had the lock originally.  Any code that can be compiled as
 *   a module and is entered with the big kernel lock held *MUST*
 *   increment the use count to activate the indirect module protection
 *   before doing anything that might sleep.
 *
 *   In practice, this means that all routines that live in modules and
 *   are invoked under the big kernel lock should do MOD_INC_USE_COUNT
 *   as their very first action.  And all failure paths from that
 *   routine must do MOD_DEC_USE_COUNT before returning.
 */

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/wrapper.h>
#include <linux/module.h>
#include <linux/init.h>

#include "usbvideo.h"

#define IBMCAM_VENDOR_ID        0x0545
#define IBMCAM_PRODUCT_ID       0x8080
#define NETCAM_PRODUCT_ID       0x8002  /* IBM NetCamera, close to model 2 */
#define VEO_800C_PRODUCT_ID     0x800C  /* Veo Stingray, repackaged Model 2 */
#define VEO_800D_PRODUCT_ID     0x800D  /* Veo Stingray, repackaged Model 4 */

#define MAX_IBMCAM              4       /* How many devices we allow to connect */
#define USES_IBMCAM_PUTPIXEL    0       /* 0=Fast/oops 1=Slow/secure */

/* Header signatures */

/* Model 1 header: 00 FF 00 xx */
#define HDRSIG_MODEL1_128x96    0x06    /* U Y V Y ... */
#define HDRSIG_MODEL1_176x144   0x0e    /* U Y V Y ... */
#define HDRSIG_MODEL1_352x288   0x00    /* V Y U Y ... */

#define IBMCAM_MODEL_1  1       /* XVP-501, 3 interfaces, rev. 0.02 */
#define IBMCAM_MODEL_2  2       /* KSX-X9903, 2 interfaces, rev. 3.0a */
#define IBMCAM_MODEL_3  3       /* KSX-X9902, 2 interfaces, rev. 3.01 */
#define IBMCAM_MODEL_4  4       /* IBM NetCamera, 0545/8002/3.0a */

/* Video sizes supported */
#define VIDEOSIZE_128x96        VIDEOSIZE(128, 96)
#define VIDEOSIZE_176x144       VIDEOSIZE(176,144)
#define VIDEOSIZE_352x288       VIDEOSIZE(352,288)
#define VIDEOSIZE_320x240       VIDEOSIZE(320,240)
#define VIDEOSIZE_352x240       VIDEOSIZE(352,240)
#define VIDEOSIZE_640x480       VIDEOSIZE(640,480)
#define VIDEOSIZE_160x120       VIDEOSIZE(160,120)

/* Video sizes supported */
enum {
        SIZE_128x96 = 0,
        SIZE_160x120,
        SIZE_176x144,
        SIZE_320x240,
        SIZE_352x240,
        SIZE_352x288,
        SIZE_640x480,
        /* Add/remove/rearrange items before this line */
        SIZE_LastItem
};

/*
 * This structure lives in uvd->user field.
 */
typedef struct {
        int initialized;        /* Had we already sent init sequence? */
        int camera_model;       /* What type of IBM camera we got? */
        int has_hdr;
} ibmcam_t;
#define IBMCAM_T(uvd)   ((ibmcam_t *)((uvd)->user_data))

struct usbvideo *cams = NULL;

static int debug = 0;

static int flags = 0; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */

static const int min_canvasWidth  = 8;
static const int min_canvasHeight = 4;

static int lighting = 1; /* Medium */

#define SHARPNESS_MIN   0
#define SHARPNESS_MAX   6
static int sharpness = 4; /* Low noise, good details */

#define FRAMERATE_MIN   0
#define FRAMERATE_MAX   6
static int framerate = -1;

static int size = SIZE_352x288;

/*
 * Here we define several initialization variables. They may
 * be used to automatically set color, hue, brightness and
 * contrast to desired values. This is particularly useful in
 * case of webcams (which have no controls and no on-screen
 * output) and also when a client V4L software is used that
 * does not have some of those controls. In any case it's
 * good to have startup values as options.
 *
 * These values are all in [0..255] range. This simplifies
 * operation. Note that actual values of V4L variables may
 * be scaled up (as much as << 8). User can see that only
 * on overlay output, however, or through a V4L client.
 */
static int init_brightness = 128;
static int init_contrast = 192;
static int init_color = 128;
static int init_hue = 128;
static int hue_correction = 128;

/* Settings for camera model 2 */
static int init_model2_rg2 = -1;
static int init_model2_sat = -1;
static int init_model2_yb = -1;

/* 01.01.08 - Added for RCA video in support -LO */
/* Settings for camera model 3 */
static int init_model3_input = 0;

MODULE_PARM(debug, "i");
MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
MODULE_PARM(flags, "i");
MODULE_PARM_DESC(flags, "Bitfield: 0=VIDIOCSYNC, 1=B/W, 2=show hints, 3=show stats, 4=test pattern, 5=separate frames, 6=clean frames");
MODULE_PARM(framerate, "i");
MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");
MODULE_PARM(lighting, "i");
MODULE_PARM_DESC(lighting, "Photosensitivity: 0=bright, 1=medium (default), 2=low light");
MODULE_PARM(sharpness, "i");
MODULE_PARM_DESC(sharpness, "Model1 noise reduction: 0=smooth, 6=sharp (default=4)");
MODULE_PARM(size, "i");
MODULE_PARM_DESC(size, "Image size: 0=128x96 1=160x120 2=176x144 3=320x240 4=352x240 5=352x288 6=640x480  (default=5)");
MODULE_PARM(init_brightness, "i");
MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
MODULE_PARM(init_contrast, "i");
MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
MODULE_PARM(init_color, "i");
MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
MODULE_PARM(init_hue, "i");
MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
MODULE_PARM(hue_correction, "i");
MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)");

MODULE_PARM(init_model2_rg2, "i");
MODULE_PARM_DESC(init_model2_rg2, "Model2 preconfiguration: 0-255 (default=47)");
MODULE_PARM(init_model2_sat, "i");
MODULE_PARM_DESC(init_model2_sat, "Model2 preconfiguration: 0-255 (default=52)");
MODULE_PARM(init_model2_yb, "i");
MODULE_PARM_DESC(init_model2_yb, "Model2 preconfiguration: 0-255 (default=160)");

/* 01.01.08 - Added for RCA video in support -LO */
MODULE_PARM(init_model3_input, "i");
MODULE_PARM_DESC(init_model3_input, "Model3 input: 0=CCD 1=RCA");

MODULE_AUTHOR ("Dmitri");
MODULE_DESCRIPTION ("IBM/Xirlink C-it USB Camera Driver for Linux (c) 2000");
MODULE_LICENSE("GPL");

/* Still mysterious i2c commands */
static const unsigned short unknown_88 = 0x0088;
static const unsigned short unknown_89 = 0x0089;
static const unsigned short bright_3x[3] = { 0x0031, 0x0032, 0x0033 };
static const unsigned short contrast_14 = 0x0014;
static const unsigned short light_27 = 0x0027;
static const unsigned short sharp_13 = 0x0013;

/* i2c commands for Model 2 cameras */
static const unsigned short mod2_brightness = 0x001a;           /* $5b .. $ee; default=$5a */
static const unsigned short mod2_set_framerate = 0x001c;        /* 0 (fast).. $1F (slow) */
static const unsigned short mod2_color_balance_rg2 = 0x001e;    /* 0 (red) .. $7F (green) */
static const unsigned short mod2_saturation = 0x0020;           /* 0 (b/w) - $7F (full color) */
static const unsigned short mod2_color_balance_yb = 0x0022;     /* 0..$7F, $50 is about right */
static const unsigned short mod2_hue = 0x0024;                  /* 0..$7F, $70 is about right */
static const unsigned short mod2_sensitivity = 0x0028;          /* 0 (min) .. $1F (max) */

struct struct_initData {
        unsigned char req;
        unsigned short value;
        unsigned short index;
};

/*
 * ibmcam_size_to_videosize()
 *
 * This procedure converts module option 'size' into the actual
 * videosize_t that defines the image size in pixels. We need
 * simplified 'size' because user wants a simple enumerated list
 * of choices, not an infinite set of possibilities.
 */
static videosize_t ibmcam_size_to_videosize(int size)
{
        videosize_t vs = VIDEOSIZE_352x288;
        RESTRICT_TO_RANGE(size, 0, (SIZE_LastItem-1));
        switch (size) {
        case SIZE_128x96:
                vs = VIDEOSIZE_128x96;
                break;
        case SIZE_160x120:
                vs = VIDEOSIZE_160x120;
                break;
        case SIZE_176x144:
                vs = VIDEOSIZE_176x144;
                break;
        case SIZE_320x240:
                vs = VIDEOSIZE_320x240;
                break;
        case SIZE_352x240:
                vs = VIDEOSIZE_352x240;
                break;
        case SIZE_352x288:
                vs = VIDEOSIZE_352x288;
                break;
        case SIZE_640x480:
                vs = VIDEOSIZE_640x480;
                break;
        default:
                err("size=%d. is not valid", size);
                break;
        }
        return vs;
}

/*
 * ibmcam_find_header()
 *
 * Locate one of supported header markers in the queue.
 * Once found, remove all preceding bytes AND the marker (4 bytes)
 * from the data pump queue. Whatever follows must be video lines.
 *
 * History:
 * 1/21/00  Created.
 */
static enum ParseState ibmcam_find_header(struct uvd *uvd) /* FIXME: Add frame here */
{
        struct usbvideo_frame *frame;
        ibmcam_t *icam;

        if ((uvd->curframe) < 0 || (uvd->curframe >= USBVIDEO_NUMFRAMES)) {
                err("ibmcam_find_header: Illegal frame %d.", uvd->curframe);
                return scan_EndParse;
        }
        icam = IBMCAM_T(uvd);
        assert(icam != NULL);
        frame = &uvd->frame[uvd->curframe];
        icam->has_hdr = 0;
        switch (icam->camera_model) {
        case IBMCAM_MODEL_1:
        {
                const int marker_len = 4;
                while (RingQueue_GetLength(&uvd->dp) >= marker_len) {
                        if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
                            (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xFF) &&
                            (RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00))
                        {
#if 0                           /* This code helps to detect new frame markers */
                                info("Header sig: 00 FF 00 %02X", RING_QUEUE_PEEK(&uvd->dp, 3));
#endif
                                frame->header = RING_QUEUE_PEEK(&uvd->dp, 3);
                                if ((frame->header == HDRSIG_MODEL1_128x96) ||
                                    (frame->header == HDRSIG_MODEL1_176x144) ||
                                    (frame->header == HDRSIG_MODEL1_352x288))
                                {
#if 0
                                        info("Header found.");
#endif
                                        RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, marker_len);
                                        icam->has_hdr = 1;
                                        break;
                                }
                        }
                        /* If we are still here then this doesn't look like a header */
                        RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
                }
                break;
        }
        case IBMCAM_MODEL_2:
case IBMCAM_MODEL_4:
        {
                int marker_len = 0;
                switch (uvd->videosize) {
                case VIDEOSIZE_176x144:
                        marker_len = 10;
                        break;
                default:
                        marker_len = 2;
                        break;
                }
                while (RingQueue_GetLength(&uvd->dp) >= marker_len) {
                        if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
                            (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xFF))
                        {
#if 0
                                info("Header found.");
#endif
                                RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, marker_len);
                                icam->has_hdr = 1;
                                frame->header = HDRSIG_MODEL1_176x144;
                                break;
                        }
                        /* If we are still here then this doesn't look like a header */
                        RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
                }
                break;
        }
        case IBMCAM_MODEL_3:
        {       /*
                 * Headers: (one precedes every frame). nc=no compression,
                 * bq=best quality bf=best frame rate.
                 *
                 * 176x144: 00 FF 02 { 0A=nc CA=bq EA=bf }
                 * 320x240: 00 FF 02 { 08=nc 28=bq 68=bf }
                 * 640x480: 00 FF 03 { 08=nc 28=bq 68=bf }
                 *
                 * Bytes '00 FF' seem to indicate header. Other two bytes
                 * encode the frame type. This is a set of bit fields that
                 * encode image size, compression type etc. These fields
                 * do NOT contain frame number because all frames carry
                 * the same header.
                 */
                const int marker_len = 4;
                while (RingQueue_GetLength(&uvd->dp) >= marker_len) {
                        if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
                            (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xFF) &&
                            (RING_QUEUE_PEEK(&uvd->dp, 2) != 0xFF))
                        {
                                /*
                                 * Combine 2 bytes of frame type into one
                                 * easy to use value
                                 */
                                unsigned long byte3, byte4;

                                byte3 = RING_QUEUE_PEEK(&uvd->dp, 2);
                                byte4 = RING_QUEUE_PEEK(&uvd->dp, 3);
                                frame->header = (byte3 << 8) | byte4;
#if 0
                                info("Header found.");
#endif
                                RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, marker_len);
                                icam->has_hdr = 1;
                                break;
                        }
                        /* If we are still here then this doesn't look like a header */
                        RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
                }
                break;
        }
        default:
                break;
        }
        if (!icam->has_hdr) {
                if (uvd->debug > 2)
                        info("Skipping frame, no header");
                return scan_EndParse;
        }

        /* Header found */
        icam->has_hdr = 1;
        uvd->stats.header_count++;
        frame->scanstate = ScanState_Lines;
        frame->curline = 0;

        if (flags & FLAGS_FORCE_TESTPATTERN) {
                usbvideo_TestPattern(uvd, 1, 1);
                return scan_NextFrame;
        }
        return scan_Continue;
}

/*
 * ibmcam_parse_lines()
 *
 * Parse one line (interlaced) from the buffer, put
 * decoded RGB value into the current frame buffer
 * and add the written number of bytes (RGB) to
 * the *pcopylen.
 *
 * History:
 * 21-Jan-2000 Created.
 * 12-Oct-2000 Reworked to reflect interlaced nature of the data.
 */
static enum ParseState ibmcam_parse_lines(
        struct uvd *uvd,
        struct usbvideo_frame *frame,
        long *pcopylen)
{
        unsigned char *f;
        ibmcam_t *icam;
        unsigned int len, scanLength, scanHeight, order_uv, order_yc;
        int v4l_linesize; /* V4L line offset */
        const int hue_corr  = (uvd->vpic.hue - 0x8000) >> 10;   /* -32..+31 */
        const int hue2_corr = (hue_correction - 128) / 4;               /* -32..+31 */
        const int ccm = 128; /* Color correction median - see below */
        int y, u, v, i, frame_done=0, color_corr;
        static unsigned char lineBuffer[640*3];
        unsigned const char *chromaLine, *lumaLine;

        assert(uvd != NULL);
        assert(frame != NULL);
        icam = IBMCAM_T(uvd);
        assert(icam != NULL);
        color_corr = (uvd->vpic.colour - 0x8000) >> 8; /* -128..+127 = -ccm..+(ccm-1)*/
        RESTRICT_TO_RANGE(color_corr, -ccm, ccm+1);

        v4l_linesize = VIDEOSIZE_X(frame->request) * V4L_BYTES_PER_PIXEL;

        if (IBMCAM_T(uvd)->camera_model == IBMCAM_MODEL_4) {
                /* Model 4 frame markers do not carry image size identification */
                switch (uvd->videosize) {
                case VIDEOSIZE_128x96:
                case VIDEOSIZE_160x120:
                case VIDEOSIZE_176x144:
                        scanLength = VIDEOSIZE_X(uvd->videosize);
                        scanHeight = VIDEOSIZE_Y(uvd->videosize);
                        break;
                default:
                        err("ibmcam_parse_lines: Wrong mode.");
                        return scan_Out;
                }
                order_yc = 1;   /* order_yc: true=Yc false=cY ('c'=either U or V) */
                order_uv = 1;   /* Always true in this algorithm */
        } else {
                switch (frame->header) {
                case HDRSIG_MODEL1_128x96:
                        scanLength = 128;
                        scanHeight = 96;
                        order_uv = 1;   /* U Y V Y ... */
                        break;
                case HDRSIG_MODEL1_176x144:
                        scanLength = 176;
                        scanHeight = 144;
                        order_uv = 1;   /* U Y V Y ... */
                        break;
                case HDRSIG_MODEL1_352x288:
                        scanLength = 352;
                        scanHeight = 288;
                        order_uv = 0;   /* Y V Y V ... */
                        break;
                default:
                        err("Unknown header signature 00 FF 00 %02lX", frame->header);
                        return scan_NextFrame;
                }
                /* order_yc: true=Yc false=cY ('c'=either U or V) */
                order_yc = (IBMCAM_T(uvd)->camera_model == IBMCAM_MODEL_2);
        }

        len = scanLength * 3;
        assert(len <= sizeof(lineBuffer));

        /*
         * Lines are organized this way:
         *
         * I420:
         * ~~~~
         * <scanLength->
         * ___________________________________
         * |-----Y-----|---UVUVUV...UVUV-----| \
         * |-----------+---------------------|  \
         * |<-- 176 -->|<------ 176*2 ------>|  Total 72. lines (interlaced)
         * |...    ... |        ...          |  /
         * |<-- 352 -->|<------ 352*2 ------>|  Total 144. lines (interlaced)
         * |___________|_____________________| /
         *  \           \
         *   lumaLine    chromaLine
         */

        /* Make sure there's enough data for the entire line */
        if (RingQueue_GetLength(&uvd->dp) < len)
                return scan_Out;

        /* Suck one line out of the ring queue */
        RingQueue_Dequeue(&uvd->dp, lineBuffer, len);

        /*
         * Make sure that our writing into output buffer
         * will not exceed the buffer. Mind that we may write
         * not into current output scanline but in several after
         * it as well (if we enlarge image vertically.)
         */
        if ((frame->curline + 2) >= VIDEOSIZE_Y(frame->request))
                return scan_NextFrame;

        /*
         * Now we are sure that entire line (representing all 'scanLength'
         * pixels from the camera) is available in the buffer. We
         * start copying the line left-aligned to the V4L buffer.
         * If the camera line is shorter then we should pad the V4L
         * buffer with something (black) to complete the line.
         */
        assert(frame->data != NULL);
        f = frame->data + (v4l_linesize * frame->curline);

        /*
         * To obtain chrominance data from the 'chromaLine' use this:
         *   v = chromaLine[0]; // 0-1:[0], 2-3:[4], 4-5:[8]...
         *   u = chromaLine[2]; // 0-1:[2], 2-3:[6], 4-5:[10]...
         *
         * Indices must be calculated this way:
         * v_index = (i >> 1) << 2;
         * u_index = (i >> 1) << 2 + 2;
         *
         * where 'i' is the column number [0..VIDEOSIZE_X(frame->request)-1]
         */
        lumaLine = lineBuffer;
        chromaLine = lineBuffer + scanLength;
        for (i = 0; i < VIDEOSIZE_X(frame->request); i++)
        {
                unsigned char rv, gv, bv;       /* RGB components */

                /* Check for various visual debugging hints (colorized pixels) */
                if ((flags & FLAGS_DISPLAY_HINTS) && (icam->has_hdr)) {
                        /*
                         * This is bad and should not happen. This means that
                         * we somehow overshoot the line and encountered new
                         * frame! Obviously our camera/V4L frame size is out
                         * of whack. This cyan dot will help you to figure
                         * out where exactly the new frame arrived.
                         */
                        if (icam->has_hdr == 1) {
                                bv = 0; /* Yellow marker */
                                gv = 0xFF;
                                rv = 0xFF;
                        } else {
                                bv = 0xFF; /* Cyan marker */
                                gv = 0xFF;
                                rv = 0;
                        }
                        icam->has_hdr = 0;
                        goto make_pixel;
                }

                /*
                 * Check if we are still in range. We may be out of range if our
                 * V4L canvas is wider or taller than the camera "native" image.
                 * Then we quickly fill the remainder of the line with zeros to
                 * make black color and quit the horizontal scanning loop.
                 */
                if (((frame->curline + 2) >= scanHeight) || (i >= scanLength)) {
                        const int j = i * V4L_BYTES_PER_PIXEL;
#if USES_IBMCAM_PUTPIXEL
                        /* Refresh 'f' because we don't use it much with PUTPIXEL */
                        f = frame->data + (v4l_linesize * frame->curline) + j;
#endif
                        memset(f, 0, v4l_linesize - j);
                        break;
                }

                y = lumaLine[i];
                if (flags & FLAGS_MONOCHROME) /* Use monochrome for debugging */
                        rv = gv = bv = y;
                else {
                        int off_0, off_2;

                        off_0 = (i >> 1) << 2;
                        off_2 = off_0 + 2;

                        if (order_yc) {
                                off_0++;
                                off_2++;
                        }
                        if (!order_uv) {
                                off_0 += 2;
                                off_2 -= 2;
                        }
                        u = chromaLine[off_0] + hue_corr;
                        v = chromaLine[off_2] + hue2_corr;

                        /* Apply color correction */
                        if (color_corr != 0) {
                                /* Magnify up to 2 times, reduce down to zero saturation */
                                u = 128 + ((ccm + color_corr) * (u - 128)) / ccm;
                                v = 128 + ((ccm + color_corr) * (v - 128)) / ccm;
                        }
                        YUV_TO_RGB_BY_THE_BOOK(y, u, v, rv, gv, bv);
                }

        make_pixel:
                /*
                 * The purpose of creating the pixel here, in one,
                 * dedicated place is that we may need to make the
                 * pixel wider and taller than it actually is. This
                 * may be used if camera generates small frames for
                 * sake of frame rate (or any other reason.)
                 *
                 * The output data consists of B, G, R bytes
                 * (in this order).
                 */
#if USES_IBMCAM_PUTPIXEL
                RGB24_PUTPIXEL(frame, i, frame->curline, rv, gv, bv);
#else
                *f++ = bv;
                *f++ = gv;
                *f++ = rv;
#endif
                /*
                 * Typically we do not decide within a legitimate frame
                 * that we want to end the frame. However debugging code
                 * may detect marker of new frame within the data. Then
                 * this condition activates. The 'data' pointer is already
                 * pointing at the new marker, so we'd better leave it as is.
                 */
                if (frame_done)
                        break;  /* End scanning of lines */
        }
        /*
         * Account for number of bytes that we wrote into output V4L frame.
         * We do it here, after we are done with the scanline, because we
         * may fill more than one output scanline if we do vertical
         * enlargement.
         */
        frame->curline += 2;
        if (pcopylen != NULL)
                *pcopylen += 2 * v4l_linesize;
        frame->deinterlace = Deinterlace_FillOddLines;

        if (frame_done || (frame->curline >= VIDEOSIZE_Y(frame->request)))
                return scan_NextFrame;
        else
                return scan_Continue;
}

/*
 * ibmcam_model2_320x240_parse_lines()
 *
 * This procedure deals with a weird RGB format that is produced by IBM
 * camera model 2 in modes 320x240 and above; 'x' below is 159 or 175,
 * depending on horizontal size of the picture:
 *
 * <--- 160 or 176 pairs of RA,RB bytes ----->
 * *-----------------------------------------* \
 * | RA0 | RB0 | RA1 | RB1 | ... | RAx | RBx |  \   This is pair of horizontal lines,
 * |-----+-----+-----+-----+ ... +-----+-----|   *- or one interlaced line, total
 * | B0  | G0  | B1  | G1  | ... | Bx  | Gx  |  /   120 or 144 such pairs which yield
 * |=====+=====+=====+=====+ ... +=====+=====| /    240 or 288 lines after deinterlacing.
 *
 * Each group of FOUR bytes (RAi, RBi, Bi, Gi) where i=0..frame_width/2-1
 * defines ONE pixel. Therefore this format yields 176x144 "decoded"
 * resolution at best. I do not know why camera sends such format - the
 * previous model (1) just used interlaced I420 and everyone was happy.
 *
 * I do not know what is the difference between RAi and RBi bytes. Both
 * seemingly represent R component, but slightly vary in value (so that
 * the picture looks a bit colored if one or another is used). I use
 * them both as R component in attempt to at least partially recover the
 * lost resolution.
 */
static enum ParseState ibmcam_model2_320x240_parse_lines(
        struct uvd *uvd,
        struct usbvideo_frame *frame,
        long *pcopylen)
{
        unsigned char *f, *la, *lb;
        unsigned int len;
        int v4l_linesize; /* V4L line offset */
        int i, j, frame_done=0, color_corr;
        int scanLength, scanHeight;
        static unsigned char lineBuffer[352*2];

        switch (uvd->videosize) {
        case VIDEOSIZE_320x240:
        case VIDEOSIZE_352x240:
        case VIDEOSIZE_352x288:
                scanLength = VIDEOSIZE_X(uvd->videosize);
                scanHeight = VIDEOSIZE_Y(uvd->videosize);
                break;
        default:
                err("ibmcam_model2_320x240_parse_lines: Wrong mode.");
                return scan_Out;
        }

        color_corr = (uvd->vpic.colour) >> 8; /* 0..+255 */
        v4l_linesize = VIDEOSIZE_X(frame->request) * V4L_BYTES_PER_PIXEL;

        len = scanLength * 2; /* See explanation above */
        assert(len <= sizeof(lineBuffer));

        /* Make sure there's enough data for the entire line */
        if (RingQueue_GetLength(&uvd->dp) < len)
                return scan_Out;

        /* Suck one line out of the ring queue */
        RingQueue_Dequeue(&uvd->dp, lineBuffer, len);

        /*
         * Make sure that our writing into output buffer
         * will not exceed the buffer. Mind that we may write
         * not into current output scanline but in several after
         * it as well (if we enlarge image vertically.)
         */
        if ((frame->curline + 2) >= VIDEOSIZE_Y(frame->request))
                return scan_NextFrame;

        la = lineBuffer;
        lb = lineBuffer + scanLength;

        /*
         * Now we are sure that entire line (representing all
         *         VIDEOSIZE_X(frame->request)
         * pixels from the camera) is available in the scratch buffer. We
         * start copying the line left-aligned to the V4L buffer (which
         * might be larger - not smaller, hopefully). If the camera
         * line is shorter then we should pad the V4L buffer with something
         * (black in this case) to complete the line.
         */
        f = frame->data + (v4l_linesize * frame->curline);

        /* Fill the 2-line strip */
        for (i = 0; i < VIDEOSIZE_X(frame->request); i++) {
                int y, rv, gv, bv;      /* RGB components */

                j = i & (~1);

                /* Check for various visual debugging hints (colorized pixels) */
                if ((flags & FLAGS_DISPLAY_HINTS) && (IBMCAM_T(uvd)->has_hdr)) {
                        if (IBMCAM_T(uvd)->has_hdr == 1) {
                                bv = 0; /* Yellow marker */
                                gv = 0xFF;
                                rv = 0xFF;
                        } else {
                                bv = 0xFF; /* Cyan marker */
                                gv = 0xFF;
                                rv = 0;
                        }
                        IBMCAM_T(uvd)->has_hdr = 0;
                        goto make_pixel;
                }

                /*
                 * Check if we are still in range. We may be out of range if our
                 * V4L canvas is wider or taller than the camera "native" image.
                 * Then we quickly fill the remainder of the line with zeros to
                 * make black color and quit the horizontal scanning loop.
                 */
                if (((frame->curline + 2) >= scanHeight) || (i >= scanLength)) {
                        const int j = i * V4L_BYTES_PER_PIXEL;
#if USES_IBMCAM_PUTPIXEL
                        /* Refresh 'f' because we don't use it much with PUTPIXEL */
                        f = frame->data + (v4l_linesize * frame->curline) + j;
#endif
                        memset(f, 0, v4l_linesize - j);
                        break;
                }

                /*
                 * Here I use RA and RB components, one per physical pixel.
                 * This causes fine vertical grid on the picture but may improve
                 * horizontal resolution. If you prefer replicating, use this:
                 *   rv = la[j + 0];   ... or ... rv = la[j + 1];
                 * then the pixel will be replicated.
                 */
                rv = la[i];
                gv = lb[j + 1];
                bv = lb[j + 0];

                y = (rv + gv + bv) / 3; /* Brightness (badly calculated) */

                if (flags & FLAGS_MONOCHROME) /* Use monochrome for debugging */
                        rv = gv = bv = y;
                else if (color_corr != 128) {

                        /* Calculate difference between color and brightness */
                        rv -= y;
                        gv -= y;
                        bv -= y;

                        /* Scale differences */
                        rv = (rv * color_corr) / 128;
                        gv = (gv * color_corr) / 128;
                        bv = (bv * color_corr) / 128;

                        /* Reapply brightness */
                        rv += y;
                        gv += y;
                        bv += y;

                        /* Watch for overflows */
                        RESTRICT_TO_RANGE(rv, 0, 255);
                        RESTRICT_TO_RANGE(gv, 0, 255);
                        RESTRICT_TO_RANGE(bv, 0, 255);
                }

        make_pixel:
                RGB24_PUTPIXEL(frame, i, frame->curline, rv, gv, bv);
        }
        /*
         * Account for number of bytes that we wrote into output V4L frame.
         * We do it here, after we are done with the scanline, because we
         * may fill more than one output scanline if we do vertical
         * enlargement.
         */
        frame->curline += 2;
        *pcopylen += v4l_linesize * 2;
        frame->deinterlace = Deinterlace_FillOddLines;

        if (frame_done || (frame->curline >= VIDEOSIZE_Y(frame->request)))
                return scan_NextFrame;
        else
                return scan_Continue;
}

static enum ParseState ibmcam_model3_parse_lines(
        struct uvd *uvd,
        struct usbvideo_frame *frame,
        long *pcopylen)
{
        unsigned char *data;
        const unsigned char *color;
        unsigned int len;
        int v4l_linesize; /* V4L line offset */
        const int hue_corr  = (uvd->vpic.hue - 0x8000) >> 10;   /* -32..+31 */
        const int hue2_corr = (hue_correction - 128) / 4;               /* -32..+31 */
        const int ccm = 128; /* Color correction median - see below */
        int i, u, v, rw, data_w=0, data_h=0, color_corr;
        static unsigned char lineBuffer[640*3];

        color_corr = (uvd->vpic.colour - 0x8000) >> 8; /* -128..+127 = -ccm..+(ccm-1)*/
        RESTRICT_TO_RANGE(color_corr, -ccm, ccm+1);

        v4l_linesize = VIDEOSIZE_X(frame->request) * V4L_BYTES_PER_PIXEL;

        /* The header tells us what sort of data is in this frame */
        switch (frame->header) {
                /*
                 * Uncompressed modes (that are easy to decode).
                 */
        case 0x0308:
                data_w = 640;
                data_h = 480;
                break;
        case 0x0208:
                data_w = 320;
                data_h = 240;
                break;
        case 0x020A:
                data_w = 160;
                data_h = 120;
                break;
                /*
                 * Compressed modes (ViCE - that I don't know how to decode).
                 */
        case 0x0328:    /* 640x480, best quality compression */
        case 0x0368:    /* 640x480, best frame rate compression */
        case 0x0228:    /* 320x240, best quality compression */
        case 0x0268:    /* 320x240, best frame rate compression */
        case 0x02CA:    /* 160x120, best quality compression */
        case 0x02EA:    /* 160x120, best frame rate compression */
                /* Do nothing with this - not supported */
                err("Unsupported mode $%04lx", frame->header);
                return scan_NextFrame;
        default:
                /* Catch unknown headers, may help in learning new headers */
                err("Strange frame->header=$%08lx", frame->header);
                return scan_NextFrame;
        }

        /*
         * Make sure that our writing into output buffer
         * will not exceed the buffer. Note that we may write
         * not into current output scanline but in several after
         * it as well (if we enlarge image vertically.)
         */
        if ((frame->curline + 1) >= data_h) {
                if (uvd->debug >= 3)
                        info("Reached line %d. (frame is done)", frame->curline);
                return scan_NextFrame;
        }

        /* Make sure there's enough data for the entire line */
        len = 3 * data_w; /* <y-data> <uv-data> */
        assert(len <= sizeof(lineBuffer));

        /* Make sure there's enough data for the entire line */
        if (RingQueue_GetLength(&uvd->dp) < len)
                return scan_Out;

        /* Suck one line out of the ring queue */
        RingQueue_Dequeue(&uvd->dp, lineBuffer, len);

        data = lineBuffer;
        color = data + data_w;          /* Point to where color planes begin */

        /* Bottom-to-top scanning */
        rw = (int)VIDEOSIZE_Y(frame->request) - (int)(frame->curline) - 1;
        RESTRICT_TO_RANGE(rw, 0, VIDEOSIZE_Y(frame->request)-1);

        for (i = 0; i < VIDEOSIZE_X(frame->request); i++) {
                int y, rv, gv, bv;      /* RGB components */

                if (i < data_w) {
                        y = data[i];    /* Luminosity is the first line */

                        /* Apply static color correction */
                        u = color[i*2] + hue_corr;
                        v = color[i*2 + 1] + hue2_corr;

                        /* Apply color correction */
                        if (color_corr != 0) {
                                /* Magnify up to 2 times, reduce down to zero saturation */
                                u = 128 + ((ccm + color_corr) * (u - 128)) / ccm;
                                v = 128 + ((ccm + color_corr) * (v - 128)) / ccm;
                        }
                } else
                        y = 0, u = v = 128;

                YUV_TO_RGB_BY_THE_BOOK(y, u, v, rv, gv, bv);
                RGB24_PUTPIXEL(frame, i, rw, rv, gv, bv); /* Done by deinterlacing now */
        }
        frame->deinterlace = Deinterlace_FillEvenLines;

        /*
         * Account for number of bytes that we wrote into output V4L frame.
         * We do it here, after we are done with the scanline, because we
         * may fill more than one output scanline if we do vertical
         * enlargement.
         */
        frame->curline += 2;
        *pcopylen += 2 * v4l_linesize;

        if (frame->curline >= VIDEOSIZE_Y(frame->request)) {
                if (uvd->debug >= 3) {
                        info("All requested lines (%ld.) done.",
                             VIDEOSIZE_Y(frame->request));
                }
                return scan_NextFrame;
        } else
                return scan_Continue;
}

/*
 * ibmcam_model4_128x96_parse_lines()
 *
 * This decoder is for one strange data format that is produced by Model 4
 * camera only in 128x96 mode. This is RGB format and here is its description.
 * First of all, this is non-interlaced stream, meaning that all scan lines
 * are present in the datastream. There are 96 consecutive blocks of data
 * that describe all 96 lines of the image. Each block is 5*128 bytes long
 * and carries R, G, B components. The format of the block is shown in the
 * code below. First 128*2 bytes are interleaved R and G components. Then
 * we have a gap (junk data) 64 bytes long. Then follow B and something
 * else, also interleaved (this makes another 128*2 bytes). After that
 * probably another 64 bytes of junk follow.
 *
 * History:
 * 10-Feb-2001 Created.
 */
static enum ParseState ibmcam_model4_128x96_parse_lines(
        struct uvd *uvd,
        struct usbvideo_frame *frame,
        long *pcopylen)
{
        const unsigned char *data_rv, *data_gv, *data_bv;
        unsigned int len;
        int i, v4l_linesize; /* V4L line offset */
        const int data_w=128, data_h=96;
        static unsigned char lineBuffer[128*5];

        v4l_linesize = VIDEOSIZE_X(frame->request) * V4L_BYTES_PER_PIXEL;

        /*
         * Make sure that our writing into output buffer
         * will not exceed the buffer. Note that we may write
         * not into current output scanline but in several after
         * it as well (if we enlarge image vertically.)
         */
        if ((frame->curline + 1) >= data_h) {
                if (uvd->debug >= 3)
                        info("Reached line %d. (frame is done)", frame->curline);
                return scan_NextFrame;
        }

        /*
         * RGRGRG .... RGRG_____________B?B?B? ... B?B?____________
         * <---- 128*2 ---><---- 64 ---><--- 128*2 ---><--- 64 --->
         */

        /* Make sure there's enough data for the entire line */
        len = 5 * data_w;
        assert(len <= sizeof(lineBuffer));

        /* Make sure there's enough data for the entire line */
        if (RingQueue_GetLength(&uvd->dp) < len)
                return scan_Out;

        /* Suck one line out of the ring queue */
        RingQueue_Dequeue(&uvd->dp, lineBuffer, len);

        data_rv = lineBuffer;
        data_gv = lineBuffer + 1;
        data_bv = lineBuffer + data_w*2 + data_w/2;
        for (i = 0; i < VIDEOSIZE_X(frame->request); i++) {
                int rv, gv, bv; /* RGB components */
                if (i < data_w) {
                        const int j = i * 2;
                        gv = data_rv[j];
                        rv = data_gv[j];
                        bv = data_bv[j];
                        if (flags & FLAGS_MONOCHROME) {
                                unsigned long y;
                                y = rv + gv + bv;
                                y /= 3;
                                if (y > 0xFF)
                                        y = 0xFF;
                                rv = gv = bv = (unsigned char) y;
                        }
                } else {
                        rv = gv = bv = 0;
                }
                RGB24_PUTPIXEL(frame, i, frame->curline, rv, gv, bv);
        }
        frame->deinterlace = Deinterlace_None;
        frame->curline++;
        *pcopylen += v4l_linesize;

        if (frame->curline >= VIDEOSIZE_Y(frame->request)) {
                if (uvd->debug >= 3) {
                        info("All requested lines (%ld.) done.",
                             VIDEOSIZE_Y(frame->request));
                }
                return scan_NextFrame;
        } else
                return scan_Continue;
}

/*
 * ibmcam_ProcessIsocData()
 *
 * Generic routine to parse the ring queue data. It employs either
 * ibmcam_find_header() or ibmcam_parse_lines() to do most
 * of work.
 *
 * History:
 * 1/21/00  Created.
 */
void ibmcam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame)
{
        enum ParseState newstate;
        long copylen = 0;
        int mod = IBMCAM_T(uvd)->camera_model;

        while (1) {
                newstate = scan_Out;
                if (RingQueue_GetLength(&uvd->dp) > 0) {
                        if (frame->scanstate == ScanState_Scanning) {
                                newstate = ibmcam_find_header(uvd);
                        } else if (frame->scanstate == ScanState_Lines) {
                                if ((mod == IBMCAM_MODEL_2) &&
                                    ((uvd->videosize == VIDEOSIZE_352x288) ||
                                     (uvd->videosize == VIDEOSIZE_320x240) ||
                                     (uvd->videosize == VIDEOSIZE_352x240)))
                                {
                                        newstate = ibmcam_model2_320x240_parse_lines(
                                                uvd, frame, &copylen);
                                } else if (mod == IBMCAM_MODEL_4) {
                                        /*
                                         * Model 4 cameras (IBM NetCamera) use Model 2 decoder (RGB)
                                         * for 320x240 and above; 160x120 and 176x144 uses Model 1
                                         * decoder (YUV), and 128x96 mode uses ???
                                         */
                                        if ((uvd->videosize == VIDEOSIZE_352x288) ||
                                            (uvd->videosize == VIDEOSIZE_320x240) ||
                                            (uvd->videosize == VIDEOSIZE_352x240))
                                        {
                                                newstate = ibmcam_model2_320x240_parse_lines(uvd, frame, &copylen);
                                        } else if (uvd->videosize == VIDEOSIZE_128x96) {
                                                newstate = ibmcam_model4_128x96_parse_lines(uvd, frame, &copylen);
                                        } else {
                                                newstate = ibmcam_parse_lines(uvd, frame, &copylen);
                                        }
                                } else if (mod == IBMCAM_MODEL_3) {
                                        newstate = ibmcam_model3_parse_lines(uvd, frame, &copylen);
                                } else {
                                        newstate = ibmcam_parse_lines(uvd, frame, &copylen);
                                }
                        }
                }
                if (newstate == scan_Continue)
                        continue;
                else if ((newstate == scan_NextFrame) || (newstate == scan_Out))
                        break;
                else
                        return; /* scan_EndParse */
        }

        if (newstate == scan_NextFrame) {
                frame->frameState = FrameState_Done;
                uvd->curframe = -1;
                uvd->stats.frame_num++;
                if ((mod == IBMCAM_MODEL_2) || (mod == IBMCAM_MODEL_4)) {
                        /* Need software contrast adjustment for those cameras */
                        frame->flags |= USBVIDEO_FRAME_FLAG_SOFTWARE_CONTRAST;
                }
        }

        /* Update the frame's uncompressed length. */
        frame->seqRead_Length += copylen;

#if 0
        {
                static unsigned char j=0;
                memset(frame->data, j++, uvd->max_frame_size);
                frame->frameState = FrameState_Ready;
        }
#endif
}

/*
 * ibmcam_veio()
 *
 * History:
 * 1/27/00  Added check for dev == NULL; this happens if camera is unplugged.
 */
static int ibmcam_veio(
        struct uvd *uvd,
        unsigned char req,
        unsigned short value,
        unsigned short index)
{
        static const char proc[] = "ibmcam_veio";
        unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */;
        int i;

        if (!CAMERA_IS_OPERATIONAL(uvd))
                return 0;

        if (req == 1) {
                i = usb_control_msg(
                        uvd->dev,
                        usb_rcvctrlpipe(uvd->dev, 0),
                        req,
                        USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
                        value,
                        index,
                        cp,
                        sizeof(cp),
                        HZ);
#if 0
                info("USB => %02x%02x%02x%02x%02x%02x%02x%02x "
                       "(req=$%02x val=$%04x ind=$%04x)",
                       cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7],
                       req, value, index);
#endif
        } else {
                i = usb_control_msg(
                        uvd->dev,
                        usb_sndctrlpipe(uvd->dev, 0),
                        req,
                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
                        value,
                        index,
                        NULL,
                        0,
                        HZ);
        }
        if (i < 0) {
                err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.",
                    proc, i);
                uvd->last_error = i;
        }
        return i;
}

/*
 * ibmcam_calculate_fps()
 *
 * This procedure roughly calculates the real frame rate based
 * on FPS code (framerate=NNN option). Actual FPS differs
 * slightly depending on lighting conditions, so that actual frame
 * rate is determined by the camera. Since I don't know how to ask
 * the camera what FPS is now I have to use the FPS code instead.
 *
 * The FPS code is in range [0..6], 0 is slowest, 6 is fastest.
 * Corresponding real FPS should be in range [3..30] frames per second.
 * The conversion formula is obvious:
 *
 * real_fps = 3 + (fps_code * 4.5)
 *
 * History:
 * 1/18/00  Created.
 */
static int ibmcam_calculate_fps(struct uvd *uvd)
{
        return 3 + framerate*4 + framerate/2;
}

/*
 * ibmcam_send_FF_04_02()
 *
 * This procedure sends magic 3-command prefix to the camera.
 * The purpose of this prefix is not known.
 *
 * History:
 * 1/2/00   Created.
 */
static void ibmcam_send_FF_04_02(struct uvd *uvd)
{
        ibmcam_veio(uvd, 0, 0x00FF, 0x0127);
        ibmcam_veio(uvd, 0, 0x0004, 0x0124);
        ibmcam_veio(uvd, 0, 0x0002, 0x0124);
}

static void ibmcam_send_00_04_06(struct uvd *uvd)
{
        ibmcam_veio(uvd, 0, 0x0000, 0x0127);
        ibmcam_veio(uvd, 0, 0x0004, 0x0124);
        ibmcam_veio(uvd, 0, 0x0006, 0x0124);
}

static void ibmcam_send_x_00(struct uvd *uvd, unsigned short x)
{
        ibmcam_veio(uvd, 0, x,      0x0127);
        ibmcam_veio(uvd, 0, 0x0000, 0x0124);
}

static void ibmcam_send_x_00_05(struct uvd *uvd, unsigned short x)
{
        ibmcam_send_x_00(uvd, x);
        ibmcam_veio(uvd, 0, 0x0005, 0x0124);
}

static void ibmcam_send_x_00_05_02(struct uvd *uvd, unsigned short x)
{
        ibmcam_veio(uvd, 0, x,      0x0127);
        ibmcam_veio(uvd, 0, 0x0000, 0x0124);
        ibmcam_veio(uvd, 0, 0x0005, 0x0124);
        ibmcam_veio(uvd, 0, 0x0002, 0x0124);
}

static void ibmcam_send_x_01_00_05(struct uvd *uvd, unsigned short x)
{
        ibmcam_veio(uvd, 0, x,      0x0127);
        ibmcam_veio(uvd, 0, 0x0001, 0x0124);
        ibmcam_veio(uvd, 0, 0x0000, 0x0124);
        ibmcam_veio(uvd, 0, 0x0005, 0x0124);
}

static void ibmcam_send_x_00_05_02_01(struct uvd *uvd, unsigned short x)
{
        ibmcam_veio(uvd, 0, x,      0x0127);
        ibmcam_veio(uvd, 0, 0x0000, 0x0124);
        ibmcam_veio(uvd, 0, 0x0005, 0x0124);
        ibmcam_veio(uvd, 0, 0x0002, 0x0124);
        ibmcam_veio(uvd, 0, 0x0001, 0x0124);
}

static void ibmcam_send_x_00_05_02_08_01(struct uvd *uvd, unsigned short x)
{
        ibmcam_veio(uvd, 0, x,      0x0127);
        ibmcam_veio(uvd, 0, 0x0000, 0x0124);
        ibmcam_veio(uvd, 0, 0x0005, 0x0124);
        ibmcam_veio(uvd, 0, 0x0002, 0x0124);
        ibmcam_veio(uvd, 0, 0x0008, 0x0124);
        ibmcam_veio(uvd, 0, 0x0001, 0x0124);
}

static void ibmcam_Packet_Format1(struct uvd *uvd, unsigned char fkey, unsigned char val)
{
        ibmcam_send_x_01_00_05(uvd, unknown_88);
        ibmcam_send_x_00_05(uvd, fkey);
        ibmcam_send_x_00_05_02_08_01(uvd, val);
        ibmcam_send_x_00_05(uvd, unknown_88);
        ibmcam_send_x_00_05_02_01(uvd, fkey);
        ibmcam_send_x_00_05(uvd, unknown_89);
        ibmcam_send_x_00(uvd, fkey);
        ibmcam_send_00_04_06(uvd);
        ibmcam_veio(uvd, 1, 0x0000, 0x0126);
        ibmcam_send_FF_04_02(uvd);
}

static void ibmcam_PacketFormat2(struct uvd *uvd, unsigned char fkey, unsigned char val)
{
        ibmcam_send_x_01_00_05  (uvd, unknown_88);
        ibmcam_send_x_00_05     (uvd, fkey);
        ibmcam_send_x_00_05_02  (uvd, val);
}

static void ibmcam_model2_Packet2(struct uvd *uvd)
{
        ibmcam_veio(uvd, 0, 0x00ff, 0x012d);
        ibmcam_veio(uvd, 0, 0xfea3, 0x0124);
}

static void ibmcam_model2_Packet1(struct uvd *uvd, unsigned short v1, unsigned short v2)
{
        ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
        ibmcam_veio(uvd, 0, 0x00ff, 0x012e);
        ibmcam_veio(uvd, 0, v1,     0x012f);
        ibmcam_veio(uvd, 0, 0x00ff, 0x0130);
        ibmcam_veio(uvd, 0, 0xc719, 0x0124);
        ibmcam_veio(uvd, 0, v2,     0x0127);

        ibmcam_model2_Packet2(uvd);
}

/*
 * ibmcam_model3_Packet1()
 *
 * 00_0078_012d 
 * 00_0097_012f
 * 00_d141_0124 
 * 00_0096_0127
 * 00_fea8_0124 
*/
static void ibmcam_model3_Packet1(struct uvd *uvd, unsigned short v1, unsigned short v2)
{
        ibmcam_veio(uvd, 0, 0x0078, 0x012d);
        ibmcam_veio(uvd, 0, v1,     0x012f);
        ibmcam_veio(uvd, 0, 0xd141, 0x0124);
        ibmcam_veio(uvd, 0, v2,     0x0127);
        ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
}

static void ibmcam_model4_BrightnessPacket(struct uvd *uvd, int i)
{
        ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
        ibmcam_veio(uvd, 0, 0x0026, 0x012f);
        ibmcam_veio(uvd, 0, 0xd141, 0x0124);
        ibmcam_veio(uvd, 0, i,      0x0127);
        ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
        ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
        ibmcam_veio(uvd, 0, 0x0038, 0x012d);
        ibmcam_veio(uvd, 0, 0x0004, 0x012f);
        ibmcam_veio(uvd, 0, 0xd145, 0x0124);
        ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
}

/*
 * ibmcam_adjust_contrast()
 *
 * The contrast value changes from 0 (high contrast) to 15 (low contrast).
 * This is in reverse to usual order of things (such as TV controls), so
 * we reverse it again here.
 *
 * TODO: we probably don't need to send the setup 5 times...
 *
 * History:
 * 1/2/00   Created.
 */
static void ibmcam_adjust_contrast(struct uvd *uvd)
{
        unsigned char a_contrast = uvd->vpic.contrast >> 12;
        unsigned char new_contrast;

        if (a_contrast >= 16)
                a_contrast = 15;
        new_contrast = 15 - a_contrast;
        if (new_contrast == uvd->vpic_old.contrast)
                return;
        uvd->vpic_old.contrast = new_contrast;
        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_1:
        {
                const int ntries = 5;
                int i;
                for (i=0; i < ntries; i++) {
                        ibmcam_Packet_Format1(uvd, contrast_14, new_contrast);
                        ibmcam_send_FF_04_02(uvd);
                }
                break;
        }
        case IBMCAM_MODEL_2:
        case IBMCAM_MODEL_4:
                /* Models 2, 4 do not have this control; implemented in software. */
                break;
        case IBMCAM_MODEL_3:
        {       /* Preset hardware values */
                static const struct {
                        unsigned short cv1;
                        unsigned short cv2;
                        unsigned short cv3;
                } cv[7] = {
                        { 0x05, 0x05, 0x0f },   /* Minimum */
                        { 0x04, 0x04, 0x16 },
                        { 0x02, 0x03, 0x16 },
                        { 0x02, 0x08, 0x16 },
                        { 0x01, 0x0c, 0x16 },
                        { 0x01, 0x0e, 0x16 },
                        { 0x01, 0x10, 0x16 }    /* Maximum */
                };
                int i = a_contrast / 2;
                RESTRICT_TO_RANGE(i, 0, 6);
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);    /* Stop */
                ibmcam_model3_Packet1(uvd, 0x0067, cv[i].cv1);
                ibmcam_model3_Packet1(uvd, 0x005b, cv[i].cv2);
                ibmcam_model3_Packet1(uvd, 0x005c, cv[i].cv3);
                ibmcam_veio(uvd, 0, 0x0001, 0x0114);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);    /* Go! */
                usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
                break;
        }
        default:
                break;
        }
}

/*
 * ibmcam_change_lighting_conditions()
 *
 * Camera model 1:
 * We have 3 levels of lighting conditions: 0=Bright, 1=Medium, 2=Low.
 *
 * Camera model 2:
 * We have 16 levels of lighting, 0 for bright light and up to 15 for
 * low light. But values above 5 or so are useless because camera is
 * not really capable to produce anything worth viewing at such light.
 * This setting may be altered only in certain camera state.
 *
 * Low lighting forces slower FPS. Lighting is set as a module parameter.
 *
 * History:
 * 1/5/00   Created.
 * 2/20/00  Added support for Model 2 cameras.
 */
static void ibmcam_change_lighting_conditions(struct uvd *uvd)
{
        static const char proc[] = "ibmcam_change_lighting_conditions";

        if (debug > 0)
                info("%s: Set lighting to %hu.", proc, lighting);

        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_1:
        {
                const int ntries = 5;
                int i;
                for (i=0; i < ntries; i++)
                        ibmcam_Packet_Format1(uvd, light_27, (unsigned short) lighting);
                break;
        }
        case IBMCAM_MODEL_2:
#if 0
                /*
                 * This command apparently requires camera to be stopped. My
                 * experiments showed that it -is- possible to alter the lighting
                 * conditions setting "on the fly", but why bother? This setting does
                 * not work reliably in all cases, so I decided simply to leave the
                 * setting where Xirlink put it - in the camera setup phase. This code
                 * is commented out because it does not work at -any- moment, so its
                 * presence makes no sense. You may use it for experiments.
                 */
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);    /* Stop camera */
                ibmcam_model2_Packet1(uvd, mod2_sensitivity, lighting);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);    /* Start camera */
#endif
                break;
        case IBMCAM_MODEL_3:
        case IBMCAM_MODEL_4:
        default:
                break;
        }
}

/*
 * ibmcam_set_sharpness()
 *
 * Cameras model 1 have internal smoothing feature. It is controlled by value in
 * range [0..6], where 0 is most smooth and 6 is most sharp (raw image, I guess).
 * Recommended value is 4. Cameras model 2 do not have this feature at all.
 */
static void ibmcam_set_sharpness(struct uvd *uvd)
{
        static const char proc[] = "ibmcam_set_sharpness";

        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_1:
        {
                static const unsigned short sa[] = { 0x11, 0x13, 0x16, 0x18, 0x1a, 0x8, 0x0a };
                unsigned short i, sv;

                RESTRICT_TO_RANGE(sharpness, SHARPNESS_MIN, SHARPNESS_MAX);
                if (debug > 0)
                        info("%s: Set sharpness to %hu.", proc, sharpness);

                sv = sa[sharpness - SHARPNESS_MIN];
                for (i=0; i < 2; i++) {
                        ibmcam_send_x_01_00_05  (uvd, unknown_88);
                        ibmcam_send_x_00_05             (uvd, sharp_13);
                        ibmcam_send_x_00_05_02  (uvd, sv);
                }
                break;
        }
        case IBMCAM_MODEL_2:
        case IBMCAM_MODEL_4:
                /* Models 2, 4 do not have this control */
                break;
        case IBMCAM_MODEL_3:
        {       /*
                 * "Use a table of magic numbers.
                 *  This setting doesn't really change much.
                 *  But that's how Windows does it."
                 */
                static const struct {
                        unsigned short sv1;
                        unsigned short sv2;
                        unsigned short sv3;
                        unsigned short sv4;
                } sv[7] = {
                        { 0x00, 0x00, 0x05, 0x14 },     /* Smoothest */
                        { 0x01, 0x04, 0x05, 0x14 },
                        { 0x02, 0x04, 0x05, 0x14 },
                        { 0x03, 0x04, 0x05, 0x14 },
                        { 0x03, 0x05, 0x05, 0x14 },
                        { 0x03, 0x06, 0x05, 0x14 },
                        { 0x03, 0x07, 0x05, 0x14 }      /* Sharpest */
                };
                RESTRICT_TO_RANGE(sharpness, SHARPNESS_MIN, SHARPNESS_MAX);
                RESTRICT_TO_RANGE(sharpness, 0, 6);
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);    /* Stop */
                ibmcam_model3_Packet1(uvd, 0x0060, sv[sharpness].sv1);
                ibmcam_model3_Packet1(uvd, 0x0061, sv[sharpness].sv2);
                ibmcam_model3_Packet1(uvd, 0x0062, sv[sharpness].sv3);
                ibmcam_model3_Packet1(uvd, 0x0063, sv[sharpness].sv4);
                ibmcam_veio(uvd, 0, 0x0001, 0x0114);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);    /* Go! */
                usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
                ibmcam_veio(uvd, 0, 0x0001, 0x0113);
                break;
        }
        default:
                break;
        }
}

/*
 * ibmcam_set_brightness()
 *
 * This procedure changes brightness of the picture.
 */
static void ibmcam_set_brightness(struct uvd *uvd)
{
        static const char proc[] = "ibmcam_set_brightness";
        static const unsigned short n = 1;

        if (debug > 0)
                info("%s: Set brightness to %hu.", proc, uvd->vpic.brightness);

        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_1:
        {
                unsigned short i, j, bv[3];
                bv[0] = bv[1] = bv[2] = uvd->vpic.brightness >> 10;
                if (bv[0] == (uvd->vpic_old.brightness >> 10))
                        return;
                uvd->vpic_old.brightness = bv[0];
                for (j=0; j < 3; j++)
                        for (i=0; i < n; i++)
                                ibmcam_Packet_Format1(uvd, bright_3x[j], bv[j]);
                break;
        }
        case IBMCAM_MODEL_2:
        {
                unsigned short i, j;
                i = uvd->vpic.brightness >> 12; /* 0 .. 15 */
                j = 0x60 + i * ((0xee - 0x60) / 16);    /* 0x60 .. 0xee or so */
                if (uvd->vpic_old.brightness == j)
                        break;
                uvd->vpic_old.brightness = j;
                ibmcam_model2_Packet1(uvd, mod2_brightness, j);
                break;
        }
        case IBMCAM_MODEL_3:
        {
                /* Model 3: Brightness range 'i' in [0x0C..0x3F] */
                unsigned short i =
                        0x0C + (uvd->vpic.brightness / (0xFFFF / (0x3F - 0x0C + 1)));
                RESTRICT_TO_RANGE(i, 0x0C, 0x3F);
                if (uvd->vpic_old.brightness == i)
                        break;
                uvd->vpic_old.brightness = i;
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);    /* Stop */
                ibmcam_model3_Packet1(uvd, 0x0036, i);
                ibmcam_veio(uvd, 0, 0x0001, 0x0114);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);    /* Go! */
                usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
                ibmcam_veio(uvd, 0, 0x0001, 0x0113);
                break;
        }
        case IBMCAM_MODEL_4:
        {
                /* Model 4: Brightness range 'i' in [0x04..0xb4] */
                unsigned short i = 0x04 + (uvd->vpic.brightness / (0xFFFF / (0xb4 - 0x04 + 1)));
                RESTRICT_TO_RANGE(i, 0x04, 0xb4);
                if (uvd->vpic_old.brightness == i)
                        break;
                uvd->vpic_old.brightness = i;
                ibmcam_model4_BrightnessPacket(uvd, i);
                break;
        }
        default:
                break;
        }
}

static void ibmcam_set_hue(struct uvd *uvd)
{
        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_2:
        {
                unsigned short hue = uvd->vpic.hue >> 9; /* 0 .. 7F */
                if (uvd->vpic_old.hue == hue)
                        return;
                uvd->vpic_old.hue = hue;
                ibmcam_model2_Packet1(uvd, mod2_hue, hue);
                /* ibmcam_model2_Packet1(uvd, mod2_saturation, sat); */
                break;
        }
        case IBMCAM_MODEL_3:
        {
#if 0 /* This seems not to work. No problem, will fix programmatically */
                unsigned short hue = 0x05 + (uvd->vpic.hue / (0xFFFF / (0x37 - 0x05 + 1)));
                RESTRICT_TO_RANGE(hue, 0x05, 0x37);
                if (uvd->vpic_old.hue == hue)
                        return;
                uvd->vpic_old.hue = hue;
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);    /* Stop */
                ibmcam_model3_Packet1(uvd, 0x007e, hue);
                ibmcam_veio(uvd, 0, 0x0001, 0x0114);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);    /* Go! */
                usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
                ibmcam_veio(uvd, 0, 0x0001, 0x0113);
#endif
                break;
        }
        case IBMCAM_MODEL_4:
        {
                unsigned short r_gain, g_gain, b_gain, hue;

                /*
                 * I am not sure r/g/b_gain variables exactly control gain
                 * of those channels. Most likely they subtly change some
                 * very internal image processing settings in the camera.
                 * In any case, here is what they do, and feel free to tweak:
                 *
                 * r_gain: seriously affects red gain
                 * g_gain: seriously affects green gain
                 * b_gain: seriously affects blue gain
                 * hue: changes average color from violet (0) to red (0xFF)
                 *
                 * These settings are preset for a decent white balance in
                 * 320x240, 352x288 modes. Low-res modes exhibit higher contrast
                 * and therefore may need different values here.
                 */
                hue = 20 + (uvd->vpic.hue >> 9);
                switch (uvd->videosize) {
                case VIDEOSIZE_128x96:
                        r_gain = 90;
                        g_gain = 166;
                        b_gain = 175;
                        break;
                case VIDEOSIZE_160x120:
                        r_gain = 70;
                        g_gain = 166;
                        b_gain = 185;
                        break;
                case VIDEOSIZE_176x144:
                        r_gain = 160;
                        g_gain = 175;
                        b_gain = 185;
                        break;
                default:
                        r_gain = 120;
                        g_gain = 166;
                        b_gain = 175;
                        break;
                }
                RESTRICT_TO_RANGE(hue, 1, 0x7f);

                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x001e, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, g_gain, 0x0127);    /* Green gain */
                ibmcam_veio(uvd, 0, r_gain, 0x012e);    /* Red gain */
                ibmcam_veio(uvd, 0, b_gain, 0x0130);    /* Blue gain */
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, hue,    0x012d);    /* Hue */
                ibmcam_veio(uvd, 0, 0xf545, 0x0124);
                break;
        }
        default:
                break;
        }
}

/*
 * ibmcam_adjust_picture()
 *
 * This procedure gets called from V4L interface to update picture settings.
 * Here we change brightness and contrast.
 */
static void ibmcam_adjust_picture(struct uvd *uvd)
{
        ibmcam_adjust_contrast(uvd);
        ibmcam_set_brightness(uvd);
        ibmcam_set_hue(uvd);
}

static int ibmcam_model1_setup(struct uvd *uvd)
{
        const int ntries = 5;
        int i;

        ibmcam_veio(uvd, 1, 0x00, 0x0128);
        ibmcam_veio(uvd, 1, 0x00, 0x0100);
        ibmcam_veio(uvd, 0, 0x01, 0x0100);      /* LED On  */
        ibmcam_veio(uvd, 1, 0x00, 0x0100);
        ibmcam_veio(uvd, 0, 0x81, 0x0100);      /* LED Off */
        ibmcam_veio(uvd, 1, 0x00, 0x0100);
        ibmcam_veio(uvd, 0, 0x01, 0x0100);      /* LED On  */
        ibmcam_veio(uvd, 0, 0x01, 0x0108);

        ibmcam_veio(uvd, 0, 0x03, 0x0112);
        ibmcam_veio(uvd, 1, 0x00, 0x0115);
        ibmcam_veio(uvd, 0, 0x06, 0x0115);
        ibmcam_veio(uvd, 1, 0x00, 0x0116);
        ibmcam_veio(uvd, 0, 0x44, 0x0116);
        ibmcam_veio(uvd, 1, 0x00, 0x0116);
        ibmcam_veio(uvd, 0, 0x40, 0x0116);
        ibmcam_veio(uvd, 1, 0x00, 0x0115);
        ibmcam_veio(uvd, 0, 0x0e, 0x0115);
        ibmcam_veio(uvd, 0, 0x19, 0x012c);

        ibmcam_Packet_Format1(uvd, 0x00, 0x1e);
        ibmcam_Packet_Format1(uvd, 0x39, 0x0d);
        ibmcam_Packet_Format1(uvd, 0x39, 0x09);
        ibmcam_Packet_Format1(uvd, 0x3b, 0x00);
        ibmcam_Packet_Format1(uvd, 0x28, 0x22);
        ibmcam_Packet_Format1(uvd, light_27, 0);
        ibmcam_Packet_Format1(uvd, 0x2b, 0x1f);
        ibmcam_Packet_Format1(uvd, 0x39, 0x08);

        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x2c, 0x00);

        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x30, 0x14);

        ibmcam_PacketFormat2(uvd, 0x39, 0x02);
        ibmcam_PacketFormat2(uvd, 0x01, 0xe1);
        ibmcam_PacketFormat2(uvd, 0x02, 0xcd);
        ibmcam_PacketFormat2(uvd, 0x03, 0xcd);
        ibmcam_PacketFormat2(uvd, 0x04, 0xfa);
        ibmcam_PacketFormat2(uvd, 0x3f, 0xff);
        ibmcam_PacketFormat2(uvd, 0x39, 0x00);

        ibmcam_PacketFormat2(uvd, 0x39, 0x02);
        ibmcam_PacketFormat2(uvd, 0x0a, 0x37);
        ibmcam_PacketFormat2(uvd, 0x0b, 0xb8);
        ibmcam_PacketFormat2(uvd, 0x0c, 0xf3);
        ibmcam_PacketFormat2(uvd, 0x0d, 0xe3);
        ibmcam_PacketFormat2(uvd, 0x0e, 0x0d);
        ibmcam_PacketFormat2(uvd, 0x0f, 0xf2);
        ibmcam_PacketFormat2(uvd, 0x10, 0xd5);
        ibmcam_PacketFormat2(uvd, 0x11, 0xba);
        ibmcam_PacketFormat2(uvd, 0x12, 0x53);
        ibmcam_PacketFormat2(uvd, 0x3f, 0xff);
        ibmcam_PacketFormat2(uvd, 0x39, 0x00);

        ibmcam_PacketFormat2(uvd, 0x39, 0x02);
        ibmcam_PacketFormat2(uvd, 0x16, 0x00);
        ibmcam_PacketFormat2(uvd, 0x17, 0x28);
        ibmcam_PacketFormat2(uvd, 0x18, 0x7d);
        ibmcam_PacketFormat2(uvd, 0x19, 0xbe);
        ibmcam_PacketFormat2(uvd, 0x3f, 0xff);
        ibmcam_PacketFormat2(uvd, 0x39, 0x00);

        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x00, 0x18);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x13, 0x18);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x14, 0x06);

        /* This is default brightness */
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x31, 0x37);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x32, 0x46);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x33, 0x55);

        ibmcam_Packet_Format1(uvd, 0x2e, 0x04);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x2d, 0x04);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x29, 0x80);
        ibmcam_Packet_Format1(uvd, 0x2c, 0x01);
        ibmcam_Packet_Format1(uvd, 0x30, 0x17);
        ibmcam_Packet_Format1(uvd, 0x39, 0x08);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x34, 0x00);

        ibmcam_veio(uvd, 0, 0x00, 0x0101);
        ibmcam_veio(uvd, 0, 0x00, 0x010a);

        switch (uvd->videosize) {
        case VIDEOSIZE_128x96:
                ibmcam_veio(uvd, 0, 0x80, 0x0103);
                ibmcam_veio(uvd, 0, 0x60, 0x0105);
                ibmcam_veio(uvd, 0, 0x0c, 0x010b);
                ibmcam_veio(uvd, 0, 0x04, 0x011b);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x0b, 0x011d);
                ibmcam_veio(uvd, 0, 0x00, 0x011e);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x00, 0x0129);
                break;
        case VIDEOSIZE_176x144:
                ibmcam_veio(uvd, 0, 0xb0, 0x0103);
                ibmcam_veio(uvd, 0, 0x8f, 0x0105);
                ibmcam_veio(uvd, 0, 0x06, 0x010b);
                ibmcam_veio(uvd, 0, 0x04, 0x011b);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x0d, 0x011d);
                ibmcam_veio(uvd, 0, 0x00, 0x011e);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x03, 0x0129);
                break;
        case VIDEOSIZE_352x288:
                ibmcam_veio(uvd, 0, 0xb0, 0x0103);
                ibmcam_veio(uvd, 0, 0x90, 0x0105);
                ibmcam_veio(uvd, 0, 0x02, 0x010b);
                ibmcam_veio(uvd, 0, 0x04, 0x011b);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x05, 0x011d);
                ibmcam_veio(uvd, 0, 0x00, 0x011e);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x00, 0x0129);
                break;
        }

        ibmcam_veio(uvd, 0, 0xff, 0x012b);

        /* This is another brightness - don't know why */
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x31, 0xc3);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x32, 0xd2);
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, 0x33, 0xe1);

        /* Default contrast */
        for (i=0; i < ntries; i++)
                ibmcam_Packet_Format1(uvd, contrast_14, 0x0a);

        /* Default sharpness */
        for (i=0; i < 2; i++)
                ibmcam_PacketFormat2(uvd, sharp_13, 0x1a);      /* Level 4 FIXME */

        /* Default lighting conditions */
        ibmcam_Packet_Format1(uvd, light_27, lighting); /* 0=Bright 2=Low */

        /* Assorted init */

        switch (uvd->videosize) {
        case VIDEOSIZE_128x96:
                ibmcam_Packet_Format1(uvd, 0x2b, 0x1e);
                ibmcam_veio(uvd, 0, 0xc9, 0x0119);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x80, 0x0109);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x36, 0x0102);
                ibmcam_veio(uvd, 0, 0x1a, 0x0104);
                ibmcam_veio(uvd, 0, 0x04, 0x011a);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x2b, 0x011c);
                ibmcam_veio(uvd, 0, 0x23, 0x012a);      /* Same everywhere */
#if 0
                ibmcam_veio(uvd, 0, 0x00, 0x0106);
                ibmcam_veio(uvd, 0, 0x38, 0x0107);
#else
                ibmcam_veio(uvd, 0, 0x02, 0x0106);
                ibmcam_veio(uvd, 0, 0x2a, 0x0107);
#endif
                break;
        case VIDEOSIZE_176x144:
                ibmcam_Packet_Format1(uvd, 0x2b, 0x1e);
                ibmcam_veio(uvd, 0, 0xc9, 0x0119);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x80, 0x0109);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x04, 0x0102);
                ibmcam_veio(uvd, 0, 0x02, 0x0104);
                ibmcam_veio(uvd, 0, 0x04, 0x011a);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x2b, 0x011c);
                ibmcam_veio(uvd, 0, 0x23, 0x012a);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x01, 0x0106);
                ibmcam_veio(uvd, 0, 0xca, 0x0107);
                break;
        case VIDEOSIZE_352x288:
                ibmcam_Packet_Format1(uvd, 0x2b, 0x1f);
                ibmcam_veio(uvd, 0, 0xc9, 0x0119);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x80, 0x0109);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x08, 0x0102);
                ibmcam_veio(uvd, 0, 0x01, 0x0104);
                ibmcam_veio(uvd, 0, 0x04, 0x011a);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x2f, 0x011c);
                ibmcam_veio(uvd, 0, 0x23, 0x012a);      /* Same everywhere */
                ibmcam_veio(uvd, 0, 0x03, 0x0106);
                ibmcam_veio(uvd, 0, 0xf6, 0x0107);
                break;
        }
        return (CAMERA_IS_OPERATIONAL(uvd) ? 0 : -EFAULT);
}

static int ibmcam_model2_setup(struct uvd *uvd)
{
        ibmcam_veio(uvd, 0, 0x0000, 0x0100);    /* LED on */
        ibmcam_veio(uvd, 1, 0x0000, 0x0116);
        ibmcam_veio(uvd, 0, 0x0060, 0x0116);
        ibmcam_veio(uvd, 0, 0x0002, 0x0112);
        ibmcam_veio(uvd, 0, 0x00bc, 0x012c);
        ibmcam_veio(uvd, 0, 0x0008, 0x012b);
        ibmcam_veio(uvd, 0, 0x0000, 0x0108);
        ibmcam_veio(uvd, 0, 0x0001, 0x0133);
        ibmcam_veio(uvd, 0, 0x0001, 0x0102);
        switch (uvd->videosize) {
        case VIDEOSIZE_176x144:
                ibmcam_veio(uvd, 0, 0x002c, 0x0103);    /* All except 320x240 */
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);    /* Same */
                ibmcam_veio(uvd, 0, 0x0024, 0x0105);    /* 176x144, 352x288 */
                ibmcam_veio(uvd, 0, 0x00b9, 0x010a);    /* Unique to this mode */
                ibmcam_veio(uvd, 0, 0x0038, 0x0119);    /* Unique to this mode */
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);    /* Same */
                ibmcam_veio(uvd, 0, 0x0090, 0x0107);    /* Unique to every mode*/
                break;
        case VIDEOSIZE_320x240:
                ibmcam_veio(uvd, 0, 0x0028, 0x0103);    /* Unique to this mode */
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);    /* Same */
                ibmcam_veio(uvd, 0, 0x001e, 0x0105);    /* 320x240, 352x240 */
                ibmcam_veio(uvd, 0, 0x0039, 0x010a);    /* All except 176x144 */
                ibmcam_veio(uvd, 0, 0x0070, 0x0119);    /* All except 176x144 */
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);    /* Same */
                ibmcam_veio(uvd, 0, 0x0098, 0x0107);    /* Unique to every mode*/
                break;
        case VIDEOSIZE_352x240:
                ibmcam_veio(uvd, 0, 0x002c, 0x0103);    /* All except 320x240 */
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);    /* Same */
                ibmcam_veio(uvd, 0, 0x001e, 0x0105);    /* 320x240, 352x240 */
                ibmcam_veio(uvd, 0, 0x0039, 0x010a);    /* All except 176x144 */
                ibmcam_veio(uvd, 0, 0x0070, 0x0119);    /* All except 176x144 */
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);    /* Same */
                ibmcam_veio(uvd, 0, 0x00da, 0x0107);    /* Unique to every mode*/
                break;
        case VIDEOSIZE_352x288:
                ibmcam_veio(uvd, 0, 0x002c, 0x0103);    /* All except 320x240 */
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);    /* Same */
                ibmcam_veio(uvd, 0, 0x0024, 0x0105);    /* 176x144, 352x288 */
                ibmcam_veio(uvd, 0, 0x0039, 0x010a);    /* All except 176x144 */
                ibmcam_veio(uvd, 0, 0x0070, 0x0119);    /* All except 176x144 */
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);    /* Same */
                ibmcam_veio(uvd, 0, 0x00fe, 0x0107);    /* Unique to every mode*/
                break;
        }
        return (CAMERA_IS_OPERATIONAL(uvd) ? 0 : -EFAULT);
}

/*
 * ibmcam_model1_setup_after_video_if()
 *
 * This code adds finishing touches to the video data interface.
 * Here we configure the frame rate and turn on the LED.
 */
static void ibmcam_model1_setup_after_video_if(struct uvd *uvd)
{
        unsigned short internal_frame_rate;

        RESTRICT_TO_RANGE(framerate, FRAMERATE_MIN, FRAMERATE_MAX);
        internal_frame_rate = FRAMERATE_MAX - framerate; /* 0=Fast 6=Slow */
        ibmcam_veio(uvd, 0, 0x01, 0x0100);      /* LED On  */
        ibmcam_veio(uvd, 0, internal_frame_rate, 0x0111);
        ibmcam_veio(uvd, 0, 0x01, 0x0114);
        ibmcam_veio(uvd, 0, 0xc0, 0x010c);
}

static void ibmcam_model2_setup_after_video_if(struct uvd *uvd)
{
        unsigned short setup_model2_rg2, setup_model2_sat, setup_model2_yb;

        ibmcam_veio(uvd, 0, 0x0000, 0x0100);    /* LED on */

        switch (uvd->videosize) {
        case VIDEOSIZE_176x144:
                ibmcam_veio(uvd, 0, 0x0050, 0x0111);
                ibmcam_veio(uvd, 0, 0x00d0, 0x0111);
                break;
        case VIDEOSIZE_320x240:
        case VIDEOSIZE_352x240:
        case VIDEOSIZE_352x288:
                ibmcam_veio(uvd, 0, 0x0040, 0x0111);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                break;
        }
        ibmcam_veio(uvd, 0, 0x009b, 0x010f);
        ibmcam_veio(uvd, 0, 0x00bb, 0x010f);

        /*
         * Hardware settings, may affect CMOS sensor; not user controls!
         * -------------------------------------------------------------
         * 0x0004: no effect
         * 0x0006: hardware effect
         * 0x0008: no effect
         * 0x000a: stops video stream, probably important h/w setting
         * 0x000c: changes color in hardware manner (not user setting)
         * 0x0012: changes number of colors (does not affect speed)
         * 0x002a: no effect
         * 0x002c: hardware setting (related to scan lines)
         * 0x002e: stops video stream, probably important h/w setting
         */
        ibmcam_model2_Packet1(uvd, 0x000a, 0x005c);
        ibmcam_model2_Packet1(uvd, 0x0004, 0x0000);
        ibmcam_model2_Packet1(uvd, 0x0006, 0x00fb);
        ibmcam_model2_Packet1(uvd, 0x0008, 0x0000);
        ibmcam_model2_Packet1(uvd, 0x000c, 0x0009);
        ibmcam_model2_Packet1(uvd, 0x0012, 0x000a);
        ibmcam_model2_Packet1(uvd, 0x002a, 0x0000);
        ibmcam_model2_Packet1(uvd, 0x002c, 0x0000);
        ibmcam_model2_Packet1(uvd, 0x002e, 0x0008);

        /*
         * Function 0x0030 pops up all over the place. Apparently
         * it is a hardware control register, with every bit assigned to
         * do something.
         */
        ibmcam_model2_Packet1(uvd, 0x0030, 0x0000);

        /*
         * Magic control of CMOS sensor. Only lower values like
         * 0-3 work, and picture shifts left or right. Don't change.
         */
        switch (uvd->videosize) {
        case VIDEOSIZE_176x144:
                ibmcam_model2_Packet1(uvd, 0x0014, 0x0002);
                ibmcam_model2_Packet1(uvd, 0x0016, 0x0002); /* Horizontal shift */
                ibmcam_model2_Packet1(uvd, 0x0018, 0x004a); /* Another hardware setting */
                break;
        case VIDEOSIZE_320x240:
                ibmcam_model2_Packet1(uvd, 0x0014, 0x0009);
                ibmcam_model2_Packet1(uvd, 0x0016, 0x0005); /* Horizontal shift */
                ibmcam_model2_Packet1(uvd, 0x0018, 0x0044); /* Another hardware setting */
                break;
        case VIDEOSIZE_352x240:
                /* This mode doesn't work as Windows programs it; changed to work */
                ibmcam_model2_Packet1(uvd, 0x0014, 0x0009); /* Windows sets this to 8 */
                ibmcam_model2_Packet1(uvd, 0x0016, 0x0003); /* Horizontal shift */
                ibmcam_model2_Packet1(uvd, 0x0018, 0x0044); /* Windows sets this to 0x0045 */
                break;
        case VIDEOSIZE_352x288:
                ibmcam_model2_Packet1(uvd, 0x0014, 0x0003);
                ibmcam_model2_Packet1(uvd, 0x0016, 0x0002); /* Horizontal shift */
                ibmcam_model2_Packet1(uvd, 0x0018, 0x004a); /* Another hardware setting */
                break;
        }

        ibmcam_model2_Packet1(uvd, mod2_brightness, 0x005a);

        /*
         * We have our own frame rate setting varying from 0 (slowest) to 6 (fastest).
         * The camera model 2 allows frame rate in range [0..0x1F] where 0 is also the
         * slowest setting. However for all practical reasons high settings make no
         * sense because USB is not fast enough to support high FPS. Be aware that
         * the picture datastream will be severely disrupted if you ask for
         * frame rate faster than allowed for the video size - see below:
         *
         * Allowable ranges (obtained experimentally on OHCI, K6-3, 450 MHz):
         * -----------------------------------------------------------------
         * 176x144: [6..31]
         * 320x240: [8..31]
         * 352x240: [10..31]
         * 352x288: [16..31] I have to raise lower threshold for stability...
         *
         * As usual, slower FPS provides better sensitivity.
         */
        {
                short hw_fps=31, i_framerate;

                RESTRICT_TO_RANGE(framerate, FRAMERATE_MIN, FRAMERATE_MAX);
                i_framerate = FRAMERATE_MAX - framerate + FRAMERATE_MIN;
                switch (uvd->videosize) {
                case VIDEOSIZE_176x144:
                        hw_fps = 6 + i_framerate*4;
                        break;
                case VIDEOSIZE_320x240:
                        hw_fps = 8 + i_framerate*3;
                        break;
                case VIDEOSIZE_352x240:
                        hw_fps = 10 + i_framerate*2;
                        break;
                case VIDEOSIZE_352x288:
                        hw_fps = 28 + i_framerate/2;
                        break;
                }
                if (uvd->debug > 0)
                        info("Framerate (hardware): %hd.", hw_fps);
                RESTRICT_TO_RANGE(hw_fps, 0, 31);
                ibmcam_model2_Packet1(uvd, mod2_set_framerate, hw_fps);
        }

        /*
         * This setting does not visibly affect pictures; left it here
         * because it was present in Windows USB data stream. This function
         * does not allow arbitrary values and apparently is a bit mask, to
         * be activated only at appropriate time. Don't change it randomly!
         */
        switch (uvd->videosize) {
        case VIDEOSIZE_176x144:
                ibmcam_model2_Packet1(uvd, 0x0026, 0x00c2);
                break;
        case VIDEOSIZE_320x240:
                ibmcam_model2_Packet1(uvd, 0x0026, 0x0044);
                break;
        case VIDEOSIZE_352x240:
                ibmcam_model2_Packet1(uvd, 0x0026, 0x0046);
                break;
        case VIDEOSIZE_352x288:
                ibmcam_model2_Packet1(uvd, 0x0026, 0x0048);
                break;
        }

        ibmcam_model2_Packet1(uvd, mod2_sensitivity, lighting);

        if (init_model2_rg2 >= 0) {
                RESTRICT_TO_RANGE(init_model2_rg2, 0, 255);
                setup_model2_rg2 = init_model2_rg2;
        } else
                setup_model2_rg2 = 0x002f;

        if (init_model2_sat >= 0) {
                RESTRICT_TO_RANGE(init_model2_sat, 0, 255);
                setup_model2_sat = init_model2_sat;
        } else
                setup_model2_sat = 0x0034;

        if (init_model2_yb >= 0) {
                RESTRICT_TO_RANGE(init_model2_yb, 0, 255);
                setup_model2_yb = init_model2_yb;
        } else
                setup_model2_yb = 0x00a0;

        ibmcam_model2_Packet1(uvd, mod2_color_balance_rg2, setup_model2_rg2);
        ibmcam_model2_Packet1(uvd, mod2_saturation, setup_model2_sat);
        ibmcam_model2_Packet1(uvd, mod2_color_balance_yb, setup_model2_yb);
        ibmcam_model2_Packet1(uvd, mod2_hue, uvd->vpic.hue >> 9); /* 0 .. 7F */;

        /* Hardware control command */
        ibmcam_model2_Packet1(uvd, 0x0030, 0x0004);

        ibmcam_veio(uvd, 0, 0x00c0, 0x010c);    /* Go camera, go! */
        usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
}

static void ibmcam_model4_setup_after_video_if(struct uvd *uvd)
{
        switch (uvd->videosize) {
        case VIDEOSIZE_128x96:
                ibmcam_veio(uvd, 0, 0x0000, 0x0100);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00bc, 0x012c);
                ibmcam_veio(uvd, 0, 0x0080, 0x012b);
                ibmcam_veio(uvd, 0, 0x0000, 0x0108);
                ibmcam_veio(uvd, 0, 0x0001, 0x0133);
                ibmcam_veio(uvd, 0, 0x009b, 0x010f);
                ibmcam_veio(uvd, 0, 0x00bb, 0x010f);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x000a, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x005c, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0004, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00fb, 0x012e);
                ibmcam_veio(uvd, 0, 0x0000, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x000c, 0x0127);
                ibmcam_veio(uvd, 0, 0x0009, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0012, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0008, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x002a, 0x012d);
                ibmcam_veio(uvd, 0, 0x0000, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0034, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0070, 0x0119);
                ibmcam_veio(uvd, 0, 0x00d2, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x005e, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x00d0, 0x0111);
                ibmcam_veio(uvd, 0, 0x0039, 0x010a);
                ibmcam_veio(uvd, 0, 0x0001, 0x0102);
                ibmcam_veio(uvd, 0, 0x0028, 0x0103);
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);
                ibmcam_veio(uvd, 0, 0x001e, 0x0105);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0016, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x000a, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0014, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012e);
                ibmcam_veio(uvd, 0, 0x001a, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a0a, 0x0124);
                ibmcam_veio(uvd, 0, 0x005a, 0x012d);
                ibmcam_veio(uvd, 0, 0x9545, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0127);
                ibmcam_veio(uvd, 0, 0x0018, 0x012e);
                ibmcam_veio(uvd, 0, 0x0043, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x001c, 0x0127);
                ibmcam_veio(uvd, 0, 0x00eb, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0032, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0036, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x001e, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0017, 0x0127);
                ibmcam_veio(uvd, 0, 0x0013, 0x012e);
                ibmcam_veio(uvd, 0, 0x0031, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x0017, 0x012d);
                ibmcam_veio(uvd, 0, 0x0078, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0004, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
                break;
        case VIDEOSIZE_160x120:
                ibmcam_veio(uvd, 0, 0x0000, 0x0100);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00bc, 0x012c);
                ibmcam_veio(uvd, 0, 0x0080, 0x012b);
                ibmcam_veio(uvd, 0, 0x0000, 0x0108);
                ibmcam_veio(uvd, 0, 0x0001, 0x0133);
                ibmcam_veio(uvd, 0, 0x009b, 0x010f);
                ibmcam_veio(uvd, 0, 0x00bb, 0x010f);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x000a, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x005c, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0004, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00fb, 0x012e);
                ibmcam_veio(uvd, 0, 0x0000, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x000c, 0x0127);
                ibmcam_veio(uvd, 0, 0x0009, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0012, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0008, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x002a, 0x012d);
                ibmcam_veio(uvd, 0, 0x0000, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0034, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0038, 0x0119);
                ibmcam_veio(uvd, 0, 0x00d8, 0x0107);
                ibmcam_veio(uvd, 0, 0x0002, 0x0106);
                ibmcam_veio(uvd, 0, 0x00d0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00b9, 0x010a);
                ibmcam_veio(uvd, 0, 0x0001, 0x0102);
                ibmcam_veio(uvd, 0, 0x0028, 0x0103);
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);
                ibmcam_veio(uvd, 0, 0x001e, 0x0105);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0016, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x000b, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0014, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012e);
                ibmcam_veio(uvd, 0, 0x001a, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a0a, 0x0124);
                ibmcam_veio(uvd, 0, 0x005a, 0x012d);
                ibmcam_veio(uvd, 0, 0x9545, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0127);
                ibmcam_veio(uvd, 0, 0x0018, 0x012e);
                ibmcam_veio(uvd, 0, 0x0043, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x001c, 0x0127);
                ibmcam_veio(uvd, 0, 0x00c7, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0032, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0025, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0036, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x001e, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0048, 0x0127);
                ibmcam_veio(uvd, 0, 0x0035, 0x012e);
                ibmcam_veio(uvd, 0, 0x00d0, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x0048, 0x012d);
                ibmcam_veio(uvd, 0, 0x0090, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x0001, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0004, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
                break;
        case VIDEOSIZE_176x144:
                ibmcam_veio(uvd, 0, 0x0000, 0x0100);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00bc, 0x012c);
                ibmcam_veio(uvd, 0, 0x0080, 0x012b);
                ibmcam_veio(uvd, 0, 0x0000, 0x0108);
                ibmcam_veio(uvd, 0, 0x0001, 0x0133);
                ibmcam_veio(uvd, 0, 0x009b, 0x010f);
                ibmcam_veio(uvd, 0, 0x00bb, 0x010f);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x000a, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x005c, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0004, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00fb, 0x012e);
                ibmcam_veio(uvd, 0, 0x0000, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x000c, 0x0127);
                ibmcam_veio(uvd, 0, 0x0009, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0012, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0008, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x002a, 0x012d);
                ibmcam_veio(uvd, 0, 0x0000, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0034, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0038, 0x0119);
                ibmcam_veio(uvd, 0, 0x00d6, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x0018, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x00d0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00b9, 0x010a);
                ibmcam_veio(uvd, 0, 0x0001, 0x0102);
                ibmcam_veio(uvd, 0, 0x002c, 0x0103);
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);
                ibmcam_veio(uvd, 0, 0x0024, 0x0105);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0016, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0007, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0014, 0x012d);
                ibmcam_veio(uvd, 0, 0x0001, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012e);
                ibmcam_veio(uvd, 0, 0x001a, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a0a, 0x0124);
                ibmcam_veio(uvd, 0, 0x005e, 0x012d);
                ibmcam_veio(uvd, 0, 0x9545, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0127);
                ibmcam_veio(uvd, 0, 0x0018, 0x012e);
                ibmcam_veio(uvd, 0, 0x0049, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x001c, 0x0127);
                ibmcam_veio(uvd, 0, 0x00c7, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0032, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0028, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0036, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x001e, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0010, 0x0127);
                ibmcam_veio(uvd, 0, 0x0013, 0x012e);
                ibmcam_veio(uvd, 0, 0x002a, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x0010, 0x012d);
                ibmcam_veio(uvd, 0, 0x006d, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x0001, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0004, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
                break;
        case VIDEOSIZE_320x240:
                ibmcam_veio(uvd, 0, 0x0000, 0x0100);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00bc, 0x012c);
                ibmcam_veio(uvd, 0, 0x0080, 0x012b);
                ibmcam_veio(uvd, 0, 0x0000, 0x0108);
                ibmcam_veio(uvd, 0, 0x0001, 0x0133);
                ibmcam_veio(uvd, 0, 0x009b, 0x010f);
                ibmcam_veio(uvd, 0, 0x00bb, 0x010f);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x000a, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x005c, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0004, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00fb, 0x012e);
                ibmcam_veio(uvd, 0, 0x0000, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x000c, 0x0127);
                ibmcam_veio(uvd, 0, 0x0009, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0012, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0008, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x002a, 0x012d);
                ibmcam_veio(uvd, 0, 0x0000, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0034, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0070, 0x0119);
                ibmcam_veio(uvd, 0, 0x00d2, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x005e, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x00d0, 0x0111);
                ibmcam_veio(uvd, 0, 0x0039, 0x010a);
                ibmcam_veio(uvd, 0, 0x0001, 0x0102);
                ibmcam_veio(uvd, 0, 0x0028, 0x0103);
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);
                ibmcam_veio(uvd, 0, 0x001e, 0x0105);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0016, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x000a, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0014, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012e);
                ibmcam_veio(uvd, 0, 0x001a, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a0a, 0x0124);
                ibmcam_veio(uvd, 0, 0x005a, 0x012d);
                ibmcam_veio(uvd, 0, 0x9545, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0127);
                ibmcam_veio(uvd, 0, 0x0018, 0x012e);
                ibmcam_veio(uvd, 0, 0x0043, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x001c, 0x0127);
                ibmcam_veio(uvd, 0, 0x00eb, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0032, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0036, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x001e, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0017, 0x0127);
                ibmcam_veio(uvd, 0, 0x0013, 0x012e);
                ibmcam_veio(uvd, 0, 0x0031, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x0017, 0x012d);
                ibmcam_veio(uvd, 0, 0x0078, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0004, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
                break;
        case VIDEOSIZE_352x288:
                ibmcam_veio(uvd, 0, 0x0000, 0x0100);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                ibmcam_veio(uvd, 0, 0x00bc, 0x012c);
                ibmcam_veio(uvd, 0, 0x0080, 0x012b);
                ibmcam_veio(uvd, 0, 0x0000, 0x0108);
                ibmcam_veio(uvd, 0, 0x0001, 0x0133);
                ibmcam_veio(uvd, 0, 0x009b, 0x010f);
                ibmcam_veio(uvd, 0, 0x00bb, 0x010f);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x000a, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x005c, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0004, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00fb, 0x012e);
                ibmcam_veio(uvd, 0, 0x0000, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x000c, 0x0127);
                ibmcam_veio(uvd, 0, 0x0009, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0012, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0008, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x002a, 0x012d);
                ibmcam_veio(uvd, 0, 0x0000, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0034, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0070, 0x0119);
                ibmcam_veio(uvd, 0, 0x00f2, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x008c, 0x0107);
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x00c0, 0x0111);
                ibmcam_veio(uvd, 0, 0x0039, 0x010a);
                ibmcam_veio(uvd, 0, 0x0001, 0x0102);
                ibmcam_veio(uvd, 0, 0x002c, 0x0103);
                ibmcam_veio(uvd, 0, 0x0000, 0x0104);
                ibmcam_veio(uvd, 0, 0x0024, 0x0105);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0016, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0006, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0014, 0x012d);
                ibmcam_veio(uvd, 0, 0x0002, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012e);
                ibmcam_veio(uvd, 0, 0x001a, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a0a, 0x0124);
                ibmcam_veio(uvd, 0, 0x005e, 0x012d);
                ibmcam_veio(uvd, 0, 0x9545, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0127);
                ibmcam_veio(uvd, 0, 0x0018, 0x012e);
                ibmcam_veio(uvd, 0, 0x0049, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012f);
                ibmcam_veio(uvd, 0, 0xd055, 0x0124);
                ibmcam_veio(uvd, 0, 0x001c, 0x0127);
                ibmcam_veio(uvd, 0, 0x00cf, 0x012e);
                ibmcam_veio(uvd, 0, 0xaa28, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0032, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0x00aa, 0x0130);
                ibmcam_veio(uvd, 0, 0x82a8, 0x0124);
                ibmcam_veio(uvd, 0, 0x0036, 0x012d);
                ibmcam_veio(uvd, 0, 0x0008, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0xfffa, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x001e, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0010, 0x0127);
                ibmcam_veio(uvd, 0, 0x0013, 0x012e);
                ibmcam_veio(uvd, 0, 0x0025, 0x0130);
                ibmcam_veio(uvd, 0, 0x8a28, 0x0124);
                ibmcam_veio(uvd, 0, 0x0010, 0x012d);
                ibmcam_veio(uvd, 0, 0x0048, 0x012f);
                ibmcam_veio(uvd, 0, 0xd145, 0x0124);
                ibmcam_veio(uvd, 0, 0x0000, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00aa, 0x012d);
                ibmcam_veio(uvd, 0, 0x0038, 0x012f);
                ibmcam_veio(uvd, 0, 0xd141, 0x0124);
                ibmcam_veio(uvd, 0, 0x0004, 0x0127);
                ibmcam_veio(uvd, 0, 0xfea8, 0x0124);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
                break; 
        }
        usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
}

static void ibmcam_model3_setup_after_video_if(struct uvd *uvd)
{
        int i;
        /*
         * 01.01.08 - Added for RCA video in support -LO
         * This struct is used to init the Model3 cam to use the RCA video in port
         * instead of the CCD sensor.
         */
        static const struct struct_initData initData[] = {
                {0, 0x0000, 0x010c},
                {0, 0x0006, 0x012c},
                {0, 0x0078, 0x012d},
                {0, 0x0046, 0x012f},
                {0, 0xd141, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfea8, 0x0124},
                {1, 0x0000, 0x0116},
                {0, 0x0064, 0x0116},
                {1, 0x0000, 0x0115},
                {0, 0x0003, 0x0115},
                {0, 0x0008, 0x0123},
                {0, 0x0000, 0x0117},
                {0, 0x0000, 0x0112},
                {0, 0x0080, 0x0100},
                {0, 0x0000, 0x0100},
                {1, 0x0000, 0x0116},
                {0, 0x0060, 0x0116},
                {0, 0x0002, 0x0112},
                {0, 0x0000, 0x0123},
                {0, 0x0001, 0x0117},
                {0, 0x0040, 0x0108},
                {0, 0x0019, 0x012c},
                {0, 0x0040, 0x0116},
                {0, 0x000a, 0x0115},
                {0, 0x000b, 0x0115},
                {0, 0x0078, 0x012d},
                {0, 0x0046, 0x012f},
                {0, 0xd141, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfea8, 0x0124},
                {0, 0x0064, 0x0116},
                {0, 0x0000, 0x0115},
                {0, 0x0001, 0x0115},
                {0, 0xffff, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00aa, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xffff, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00f2, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x000f, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xffff, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00f8, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00fc, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xffff, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00f9, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x003c, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xffff, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0027, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0019, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0021, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0006, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0045, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x002a, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x000e, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x002b, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00f4, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x002c, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0004, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x002d, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0014, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x002e, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0003, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x002f, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0003, 0x0127},
                {0, 0xfff8, 0x0124},

                {0, 0xfffd, 0x0124},
                {0, 0x0014, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0040, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0040, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0053, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0x0000, 0x0101},
                {0, 0x00a0, 0x0103},
                {0, 0x0078, 0x0105},
                {0, 0x0000, 0x010a},
                {0, 0x0024, 0x010b},
                {0, 0x0028, 0x0119},
                {0, 0x0088, 0x011b},
                {0, 0x0002, 0x011d},
                {0, 0x0003, 0x011e},
                {0, 0x0000, 0x0129},
                {0, 0x00fc, 0x012b},
                {0, 0x0008, 0x0102},
                {0, 0x0000, 0x0104},
                {0, 0x0008, 0x011a},
                {0, 0x0028, 0x011c},
                {0, 0x0021, 0x012a},
                {0, 0x0000, 0x0118},
                {0, 0x0000, 0x0132},
                {0, 0x0000, 0x0109},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0031, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0040, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0040, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x00dc, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0032, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0020, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0001, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0040, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0040, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0037, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0030, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0xfff9, 0x0124},
                {0, 0x0086, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0038, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0008, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0x0000, 0x0127},
                {0, 0xfff8, 0x0124},
                {0, 0xfffd, 0x0124},
                {0, 0xfffa, 0x0124},
                {0, 0x0003, 0x0106},
                {0, 0x0062, 0x0107},
                {0, 0x0003, 0x0111},
        };
#define NUM_INIT_DATA 

        unsigned short compression = 0; /* 0=none, 7=best frame rate  */
        int f_rate; /* 0=Fastest 7=slowest */

        if (IBMCAM_T(uvd)->initialized)
                return;

        /* Internal frame rate is controlled by f_rate value */
        f_rate = 7 - framerate;
        RESTRICT_TO_RANGE(f_rate, 0, 7);

        ibmcam_veio(uvd, 0, 0x0000, 0x0100);
        ibmcam_veio(uvd, 1, 0x0000, 0x0116);
        ibmcam_veio(uvd, 0, 0x0060, 0x0116);
        ibmcam_veio(uvd, 0, 0x0002, 0x0112);
        ibmcam_veio(uvd, 0, 0x0000, 0x0123);
        ibmcam_veio(uvd, 0, 0x0001, 0x0117);
        ibmcam_veio(uvd, 0, 0x0040, 0x0108);
        ibmcam_veio(uvd, 0, 0x0019, 0x012c);
        ibmcam_veio(uvd, 0, 0x0060, 0x0116);
        ibmcam_veio(uvd, 0, 0x0002, 0x0115);
        ibmcam_veio(uvd, 0, 0x0003, 0x0115);
        ibmcam_veio(uvd, 1, 0x0000, 0x0115);
        ibmcam_veio(uvd, 0, 0x000b, 0x0115);
        ibmcam_model3_Packet1(uvd, 0x000a, 0x0040);
        ibmcam_model3_Packet1(uvd, 0x000b, 0x00f6);
        ibmcam_model3_Packet1(uvd, 0x000c, 0x0002);
        ibmcam_model3_Packet1(uvd, 0x000d, 0x0020);
        ibmcam_model3_Packet1(uvd, 0x000e, 0x0033);
        ibmcam_model3_Packet1(uvd, 0x000f, 0x0007);
        ibmcam_model3_Packet1(uvd, 0x0010, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0011, 0x0070);
        ibmcam_model3_Packet1(uvd, 0x0012, 0x0030);
        ibmcam_model3_Packet1(uvd, 0x0013, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0014, 0x0001);
        ibmcam_model3_Packet1(uvd, 0x0015, 0x0001);
        ibmcam_model3_Packet1(uvd, 0x0016, 0x0001);
        ibmcam_model3_Packet1(uvd, 0x0017, 0x0001);
        ibmcam_model3_Packet1(uvd, 0x0018, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x001e, 0x00c3);
        ibmcam_model3_Packet1(uvd, 0x0020, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0028, 0x0010);
        ibmcam_model3_Packet1(uvd, 0x0029, 0x0054);
        ibmcam_model3_Packet1(uvd, 0x002a, 0x0013);
        ibmcam_model3_Packet1(uvd, 0x002b, 0x0007);
        ibmcam_model3_Packet1(uvd, 0x002d, 0x0028);
        ibmcam_model3_Packet1(uvd, 0x002e, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0031, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0032, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0033, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0034, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0035, 0x0038);
        ibmcam_model3_Packet1(uvd, 0x003a, 0x0001);
        ibmcam_model3_Packet1(uvd, 0x003c, 0x001e);
        ibmcam_model3_Packet1(uvd, 0x003f, 0x000a);
        ibmcam_model3_Packet1(uvd, 0x0041, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0046, 0x003f);
        ibmcam_model3_Packet1(uvd, 0x0047, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0050, 0x0005);
        ibmcam_model3_Packet1(uvd, 0x0052, 0x001a);
        ibmcam_model3_Packet1(uvd, 0x0053, 0x0003);
        ibmcam_model3_Packet1(uvd, 0x005a, 0x006b);
        ibmcam_model3_Packet1(uvd, 0x005d, 0x001e);
        ibmcam_model3_Packet1(uvd, 0x005e, 0x0030);
        ibmcam_model3_Packet1(uvd, 0x005f, 0x0041);
        ibmcam_model3_Packet1(uvd, 0x0064, 0x0008);
        ibmcam_model3_Packet1(uvd, 0x0065, 0x0015);
        ibmcam_model3_Packet1(uvd, 0x0068, 0x000f);
        ibmcam_model3_Packet1(uvd, 0x0079, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x007a, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x007c, 0x003f);
        ibmcam_model3_Packet1(uvd, 0x0082, 0x000f);
        ibmcam_model3_Packet1(uvd, 0x0085, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x0099, 0x0000);
        ibmcam_model3_Packet1(uvd, 0x009b, 0x0023);
        ibmcam_model3_Packet1(uvd, 0x009c, 0x0022);
        ibmcam_model3_Packet1(uvd, 0x009d, 0x0096);
        ibmcam_model3_Packet1(uvd, 0x009e, 0x0096);
        ibmcam_model3_Packet1(uvd, 0x009f, 0x000a);

        switch (uvd->videosize) {
        case VIDEOSIZE_160x120:
                ibmcam_veio(uvd, 0, 0x0000, 0x0101); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x00a0, 0x0103); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x0078, 0x0105); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x0000, 0x010a); /* Same */
                ibmcam_veio(uvd, 0, 0x0024, 0x010b); /* Differs everywhere */
                ibmcam_veio(uvd, 0, 0x00a9, 0x0119);
                ibmcam_veio(uvd, 0, 0x0016, 0x011b);
                ibmcam_veio(uvd, 0, 0x0002, 0x011d); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x0003, 0x011e); /* Same on 176x144, 640x480 */
                ibmcam_veio(uvd, 0, 0x0000, 0x0129); /* Same */
                ibmcam_veio(uvd, 0, 0x00fc, 0x012b); /* Same */
                ibmcam_veio(uvd, 0, 0x0018, 0x0102);
                ibmcam_veio(uvd, 0, 0x0004, 0x0104);
                ibmcam_veio(uvd, 0, 0x0004, 0x011a);
                ibmcam_veio(uvd, 0, 0x0028, 0x011c);
                ibmcam_veio(uvd, 0, 0x0022, 0x012a); /* Same */
                ibmcam_veio(uvd, 0, 0x0000, 0x0118);
                ibmcam_veio(uvd, 0, 0x0000, 0x0132);
                ibmcam_model3_Packet1(uvd, 0x0021, 0x0001); /* Same */
                ibmcam_veio(uvd, 0, compression, 0x0109);
                break;
        case VIDEOSIZE_320x240:
                ibmcam_veio(uvd, 0, 0x0000, 0x0101); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x00a0, 0x0103); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x0078, 0x0105); /* Same on 176x144, 320x240 */
                ibmcam_veio(uvd, 0, 0x0000, 0x010a); /* Same */
                ibmcam_veio(uvd, 0, 0x0028, 0x010b); /* Differs everywhere */
                ibmcam_veio(uvd, 0, 0x0002, 0x011d); /* Same */
                ibmcam_veio(uvd, 0, 0x0000, 0x011e);
                ibmcam_veio(uvd, 0, 0x0000, 0x0129); /* Same */
                ibmcam_veio(uvd, 0, 0x00fc, 0x012b); /* Same */
                /* 4 commands from 160x120 skipped */
                ibmcam_veio(uvd, 0, 0x0022, 0x012a); /* Same */
                ibmcam_model3_Packet1(uvd, 0x0021, 0x0001); /* Same */
                ibmcam_veio(uvd, 0, compression, 0x0109);
                ibmcam_veio(uvd, 0, 0x00d9, 0x0119);
                ibmcam_veio(uvd, 0, 0x0006, 0x011b);
                ibmcam_veio(uvd, 0, 0x0021, 0x0102); /* Same on 320x240, 640x480 */
                ibmcam_veio(uvd, 0, 0x0010, 0x0104);
                ibmcam_veio(uvd, 0, 0x0004, 0x011a);
                ibmcam_veio(uvd, 0, 0x003f, 0x011c);
                ibmcam_veio(uvd, 0, 0x001c, 0x0118);
                ibmcam_veio(uvd, 0, 0x0000, 0x0132);
                break;
        case VIDEOSIZE_640x480:
                ibmcam_veio(uvd, 0, 0x00f0, 0x0105);
                ibmcam_veio(uvd, 0, 0x0000, 0x010a); /* Same */
                ibmcam_veio(uvd, 0, 0x0038, 0x010b); /* Differs everywhere */
                ibmcam_veio(uvd, 0, 0x00d9, 0x0119); /* Same on 320x240, 640x480 */
                ibmcam_veio(uvd, 0, 0x0006, 0x011b); /* Same on 320x240, 640x480 */
                ibmcam_veio(uvd, 0, 0x0004, 0x011d); /* NC */
                ibmcam_veio(uvd, 0, 0x0003, 0x011e); /* Same on 176x144, 640x480 */
                ibmcam_veio(uvd, 0, 0x0000, 0x0129); /* Same */
                ibmcam_veio(uvd, 0, 0x00fc, 0x012b); /* Same */
                ibmcam_veio(uvd, 0, 0x0021, 0x0102); /* Same on 320x240, 640x480 */
                ibmcam_veio(uvd, 0, 0x0016, 0x0104); /* NC */
                ibmcam_veio(uvd, 0, 0x0004, 0x011a); /* Same on 320x240, 640x480 */
                ibmcam_veio(uvd, 0, 0x003f, 0x011c); /* Same on 320x240, 640x480 */
                ibmcam_veio(uvd, 0, 0x0022, 0x012a); /* Same */
                ibmcam_veio(uvd, 0, 0x001c, 0x0118); /* Same on 320x240, 640x480 */
                ibmcam_model3_Packet1(uvd, 0x0021, 0x0001); /* Same */
                ibmcam_veio(uvd, 0, compression, 0x0109);
                ibmcam_veio(uvd, 0, 0x0040, 0x0101);
                ibmcam_veio(uvd, 0, 0x0040, 0x0103);
                ibmcam_veio(uvd, 0, 0x0000, 0x0132); /* Same on 320x240, 640x480 */
                break;
        }
        ibmcam_model3_Packet1(uvd, 0x007e, 0x000e);     /* Hue */
        ibmcam_model3_Packet1(uvd, 0x0036, 0x0011);     /* Brightness */
        ibmcam_model3_Packet1(uvd, 0x0060, 0x0002);     /* Sharpness */
        ibmcam_model3_Packet1(uvd, 0x0061, 0x0004);     /* Sharpness */
        ibmcam_model3_Packet1(uvd, 0x0062, 0x0005);     /* Sharpness */
        ibmcam_model3_Packet1(uvd, 0x0063, 0x0014);     /* Sharpness */
        ibmcam_model3_Packet1(uvd, 0x0096, 0x00a0);     /* Red gain */
        ibmcam_model3_Packet1(uvd, 0x0097, 0x0096);     /* Blue gain */
        ibmcam_model3_Packet1(uvd, 0x0067, 0x0001);     /* Contrast */
        ibmcam_model3_Packet1(uvd, 0x005b, 0x000c);     /* Contrast */
        ibmcam_model3_Packet1(uvd, 0x005c, 0x0016);     /* Contrast */
        ibmcam_model3_Packet1(uvd, 0x0098, 0x000b);
        ibmcam_model3_Packet1(uvd, 0x002c, 0x0003);     /* Was 1, broke 640x480 */
        ibmcam_model3_Packet1(uvd, 0x002f, 0x002a);
        ibmcam_model3_Packet1(uvd, 0x0030, 0x0029);
        ibmcam_model3_Packet1(uvd, 0x0037, 0x0002);
        ibmcam_model3_Packet1(uvd, 0x0038, 0x0059);
        ibmcam_model3_Packet1(uvd, 0x003d, 0x002e);
        ibmcam_model3_Packet1(uvd, 0x003e, 0x0028);
        ibmcam_model3_Packet1(uvd, 0x0078, 0x0005);
        ibmcam_model3_Packet1(uvd, 0x007b, 0x0011);
        ibmcam_model3_Packet1(uvd, 0x007d, 0x004b);
        ibmcam_model3_Packet1(uvd, 0x007f, 0x0022);
        ibmcam_model3_Packet1(uvd, 0x0080, 0x000c);
        ibmcam_model3_Packet1(uvd, 0x0081, 0x000b);
        ibmcam_model3_Packet1(uvd, 0x0083, 0x00fd);
        ibmcam_model3_Packet1(uvd, 0x0086, 0x000b);
        ibmcam_model3_Packet1(uvd, 0x0087, 0x000b);
        ibmcam_model3_Packet1(uvd, 0x007e, 0x000e);
        ibmcam_model3_Packet1(uvd, 0x0096, 0x00a0);     /* Red gain */
        ibmcam_model3_Packet1(uvd, 0x0097, 0x0096);     /* Blue gain */
        ibmcam_model3_Packet1(uvd, 0x0098, 0x000b);

        switch (uvd->videosize) {
        case VIDEOSIZE_160x120:
                ibmcam_veio(uvd, 0, 0x0002, 0x0106);
                ibmcam_veio(uvd, 0, 0x0008, 0x0107);
                ibmcam_veio(uvd, 0, f_rate, 0x0111);    /* Frame rate */
                ibmcam_model3_Packet1(uvd, 0x001f, 0x0000); /* Same */
                ibmcam_model3_Packet1(uvd, 0x0039, 0x001f); /* Same */
                ibmcam_model3_Packet1(uvd, 0x003b, 0x003c); /* Same */
                ibmcam_model3_Packet1(uvd, 0x0040, 0x000a);
                ibmcam_model3_Packet1(uvd, 0x0051, 0x000a);
                break;
        case VIDEOSIZE_320x240:
                ibmcam_veio(uvd, 0, 0x0003, 0x0106);
                ibmcam_veio(uvd, 0, 0x0062, 0x0107);
                ibmcam_veio(uvd, 0, f_rate, 0x0111);    /* Frame rate */
                ibmcam_model3_Packet1(uvd, 0x001f, 0x0000); /* Same */
                ibmcam_model3_Packet1(uvd, 0x0039, 0x001f); /* Same */
                ibmcam_model3_Packet1(uvd, 0x003b, 0x003c); /* Same */
                ibmcam_model3_Packet1(uvd, 0x0040, 0x0008);
                ibmcam_model3_Packet1(uvd, 0x0051, 0x000b);
                break;
        case VIDEOSIZE_640x480:
                ibmcam_veio(uvd, 0, 0x0002, 0x0106);    /* Adjustments */
                ibmcam_veio(uvd, 0, 0x00b4, 0x0107);    /* Adjustments */
                ibmcam_veio(uvd, 0, f_rate, 0x0111);    /* Frame rate */
                ibmcam_model3_Packet1(uvd, 0x001f, 0x0002); /* !Same */
                ibmcam_model3_Packet1(uvd, 0x0039, 0x003e); /* !Same */
                ibmcam_model3_Packet1(uvd, 0x0040, 0x0008);
                ibmcam_model3_Packet1(uvd, 0x0051, 0x000a);
                break;
        }

        /* 01.01.08 - Added for RCA video in support -LO */
        if(init_model3_input) {
                if (debug > 0)
                        info("Setting input to RCA.");
                for (i=0; i < (sizeof(initData)/sizeof(initData[0])); i++) {
                        ibmcam_veio(uvd, initData[i].req, initData[i].value, initData[i].index);
                }
        }

        ibmcam_veio(uvd, 0, 0x0001, 0x0114);
        ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
        usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
}

/*
 * ibmcam_video_stop()
 *
 * This code tells camera to stop streaming. The interface remains
 * configured and bandwidth - claimed.
 */
static void ibmcam_video_stop(struct uvd *uvd)
{
        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_1:
                ibmcam_veio(uvd, 0, 0x00, 0x010c);
                ibmcam_veio(uvd, 0, 0x00, 0x010c);
                ibmcam_veio(uvd, 0, 0x01, 0x0114);
                ibmcam_veio(uvd, 0, 0xc0, 0x010c);
                ibmcam_veio(uvd, 0, 0x00, 0x010c);
                ibmcam_send_FF_04_02(uvd);
                ibmcam_veio(uvd, 1, 0x00, 0x0100);
                ibmcam_veio(uvd, 0, 0x81, 0x0100);      /* LED Off */
                break;
        case IBMCAM_MODEL_2:
case IBMCAM_MODEL_4:
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);    /* Stop the camera */

                ibmcam_model2_Packet1(uvd, 0x0030, 0x0004);

                ibmcam_veio(uvd, 0, 0x0080, 0x0100);    /* LED Off */
                ibmcam_veio(uvd, 0, 0x0020, 0x0111);
                ibmcam_veio(uvd, 0, 0x00a0, 0x0111);

                ibmcam_model2_Packet1(uvd, 0x0030, 0x0002);

                ibmcam_veio(uvd, 0, 0x0020, 0x0111);
                ibmcam_veio(uvd, 0, 0x0000, 0x0112);
                break;
        case IBMCAM_MODEL_3:
#if 1
                ibmcam_veio(uvd, 0, 0x0000, 0x010c);

                /* Here we are supposed to select video interface alt. setting 0 */
                ibmcam_veio(uvd, 0, 0x0006, 0x012c);

                ibmcam_model3_Packet1(uvd, 0x0046, 0x0000);

                ibmcam_veio(uvd, 1, 0x0000, 0x0116);
                ibmcam_veio(uvd, 0, 0x0064, 0x0116);
                ibmcam_veio(uvd, 1, 0x0000, 0x0115);
                ibmcam_veio(uvd, 0, 0x0003, 0x0115);
                ibmcam_veio(uvd, 0, 0x0008, 0x0123);
                ibmcam_veio(uvd, 0, 0x0000, 0x0117);
                ibmcam_veio(uvd, 0, 0x0000, 0x0112);
                ibmcam_veio(uvd, 0, 0x0080, 0x0100);
                IBMCAM_T(uvd)->initialized = 0;
#endif
                break;
        } /* switch */
}

/*
 * ibmcam_reinit_iso()
 *
 * This procedure sends couple of commands to the camera and then
 * resets the video pipe. This sequence was observed to reinit the
 * camera or, at least, to initiate ISO data stream.
 *
 * History:
 * 1/2/00   Created.
 */
static void ibmcam_reinit_iso(struct uvd *uvd, int do_stop)
{
        switch (IBMCAM_T(uvd)->camera_model) {
        case IBMCAM_MODEL_1:
                if (do_stop)
                        ibmcam_video_stop(uvd);
                ibmcam_veio(uvd, 0, 0x0001, 0x0114);
                ibmcam_veio(uvd, 0, 0x00c0, 0x010c);
                usb_clear_halt(uvd->dev, usb_rcvisocpipe(uvd->dev, uvd->video_endp));
                ibmcam_model1_setup_after_video_if(uvd);
                break;
        case IBMCAM_MODEL_2:
                ibmcam_model2_setup_after_video_if(uvd);
                break;
        case IBMCAM_MODEL_3:
                ibmcam_video_stop(uvd);
                ibmcam_model3_setup_after_video_if(uvd);
                break;
        case IBMCAM_MODEL_4:
                ibmcam_model4_setup_after_video_if(uvd);
                break;
        }
}

static void ibmcam_video_start(struct uvd *uvd)
{
        ibmcam_change_lighting_conditions(uvd);
        ibmcam_set_sharpness(uvd);
        ibmcam_reinit_iso(uvd, 0);
}

/*
 * Return negative code on failure, 0 on success.
 */
static int ibmcam_setup_on_open(struct uvd *uvd)
{
        int setup_ok = 0; /* Success by default */
        /* Send init sequence only once, it's large! */
        if (!IBMCAM_T(uvd)->initialized) { /* FIXME rename */
                switch (IBMCAM_T(uvd)->camera_model) {
                case IBMCAM_MODEL_1:
                        setup_ok = ibmcam_model1_setup(uvd);
                        break;
                case IBMCAM_MODEL_2:
                        setup_ok = ibmcam_model2_setup(uvd);
                        break;
                case IBMCAM_MODEL_3:
                case IBMCAM_MODEL_4:
                        /* We do all setup when Isoc stream is requested */
                        break;
                }
                IBMCAM_T(uvd)->initialized = (setup_ok != 0);
        }
        return setup_ok;
}

static void ibmcam_configure_video(struct uvd *uvd)
{
        if (uvd == NULL)
                return;

        RESTRICT_TO_RANGE(init_brightness, 0, 255);
        RESTRICT_TO_RANGE(init_contrast, 0, 255);
        RESTRICT_TO_RANGE(init_color, 0, 255);
        RESTRICT_TO_RANGE(init_hue, 0, 255);
        RESTRICT_TO_RANGE(hue_correction, 0, 255);

        memset(&uvd->vpic, 0, sizeof(uvd->vpic));
        memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));

        uvd->vpic.colour = init_color << 8;
        uvd->vpic.hue = init_hue << 8;
        uvd->vpic.brightness = init_brightness << 8;
        uvd->vpic.contrast = init_contrast << 8;
        uvd->vpic.whiteness = 105 << 8; /* This one isn't used */
        uvd->vpic.depth = 24;
        uvd->vpic.palette = VIDEO_PALETTE_RGB24;

        memset(&uvd->vcap, 0, sizeof(uvd->vcap));
        strcpy(uvd->vcap.name, "IBM USB Camera");
        uvd->vcap.type = VID_TYPE_CAPTURE;
        uvd->vcap.channels = 1;
        uvd->vcap.audios = 0;
        uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas);
        uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas);
        uvd->vcap.minwidth = min_canvasWidth;
        uvd->vcap.minheight = min_canvasHeight;

        memset(&uvd->vchan, 0, sizeof(uvd->vchan));
        uvd->vchan.flags = 0;
        uvd->vchan.tuners = 0;
        uvd->vchan.channel = 0;
        uvd->vchan.type = VIDEO_TYPE_CAMERA;
        strcpy(uvd->vchan.name, "Camera");
}

/*
 * ibmcam_probe()
 *
 * This procedure queries device descriptor and accepts the interface
 * if it looks like IBM C-it camera.
 *
 * History:
 * 22-Jan-2000 Moved camera init code to ibmcam_open()
 * 27=Jan-2000 Changed to use static structures, added locking.
 * 24-May-2000 Corrected to prevent race condition (MOD_xxx_USE_COUNT).
 * 03-Jul-2000 Fixed endianness bug.
 * 12-Nov-2000 Reworked to comply with new probe() signature.
 * 23-Jan-2001 Added compatibility with 2.2.x kernels.
 */
static void *ibmcam_probe(struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *devid)
{
        struct uvd *uvd = NULL;
        int i, nas, model=0, canvasX=0, canvasY=0;
        int actInterface=-1, inactInterface=-1, maxPS=0;
        unsigned char video_ep = 0;

        if (debug >= 1)
                info("ibmcam_probe(%p,%u.)", dev, ifnum);

        /* We don't handle multi-config cameras */
        if (dev->descriptor.bNumConfigurations != 1)
                return NULL;

        /* Is it an IBM camera? */
        if (dev->descriptor.idVendor != IBMCAM_VENDOR_ID)
                return NULL;
        if ((dev->descriptor.idProduct != IBMCAM_PRODUCT_ID) &&
            (dev->descriptor.idProduct != VEO_800C_PRODUCT_ID) &&
            (dev->descriptor.idProduct != VEO_800D_PRODUCT_ID) &&
            (dev->descriptor.idProduct != NETCAM_PRODUCT_ID))
                return NULL;

        /* Check the version/revision */
        switch (dev->descriptor.bcdDevice) {
        case 0x0002:
                if (ifnum != 2)
                        return NULL;
                model = IBMCAM_MODEL_1;
                break;
        case 0x030A:
                if (ifnum != 0)
                        return NULL;
                if ((dev->descriptor.idProduct == NETCAM_PRODUCT_ID) ||
                    (dev->descriptor.idProduct == VEO_800D_PRODUCT_ID))
                        model = IBMCAM_MODEL_4;
                else
                        model = IBMCAM_MODEL_2;
                break;
        case 0x0301:
                if (ifnum != 0)
                        return NULL;
                model = IBMCAM_MODEL_3;
                break;
        default:
                err("IBM camera with revision 0x%04x is not supported.",
                        dev->descriptor.bcdDevice);
                return NULL;
        }

        /* Print detailed info on what we found so far */
        do {
                char *brand = NULL;
                switch (dev->descriptor.idProduct) {
                case NETCAM_PRODUCT_ID:
                        brand = "IBM NetCamera";
                        break;
                case VEO_800C_PRODUCT_ID:
                        brand = "Veo Stingray [800C]";
                        break;
                case VEO_800D_PRODUCT_ID:
                        brand = "Veo Stingray [800D]";
                        break;
                case IBMCAM_PRODUCT_ID:
                default:
                        brand = "IBM PC Camera"; /* a.k.a. Xirlink C-It */
                        break;
                }
                info("%s USB camera found (model %d, rev. 0x%04x)",
                     brand, model, dev->descriptor.bcdDevice);
        } while (0);

        /* Validate found interface: must have one ISO endpoint */
        nas = dev->actconfig->interface[ifnum].num_altsetting;
        if (debug > 0)
                info("Number of alternate settings=%d.", nas);
        if (nas < 2) {
                err("Too few alternate settings for this camera!");
                return NULL;
        }
        /* Validate all alternate settings */
        for (i=0; i < nas; i++) {
                const struct usb_interface_descriptor *interface;
                const struct usb_endpoint_descriptor *endpoint;

                interface = &dev->actconfig->interface[ifnum].altsetting[i];
                if (interface->bNumEndpoints != 1) {
                        err("Interface %d. has %u. endpoints!",
                            ifnum, (unsigned)(interface->bNumEndpoints));
                        return NULL;
                }
                endpoint = &interface->endpoint[0];
                if (video_ep == 0)
                        video_ep = endpoint->bEndpointAddress;
                else if (video_ep != endpoint->bEndpointAddress) {
                        err("Alternate settings have different endpoint addresses!");
                        return NULL;
                }
                if ((endpoint->bmAttributes & 0x03) != 0x01) {
                        err("Interface %d. has non-ISO endpoint!", ifnum);
                        return NULL;
                }
                if ((endpoint->bEndpointAddress & 0x80) == 0) {
                        err("Interface %d. has ISO OUT endpoint!", ifnum);
                        return NULL;
                }
                if (endpoint->wMaxPacketSize == 0) {
                        if (inactInterface < 0)
                                inactInterface = i;
                        else {
                                err("More than one inactive alt. setting!");
                                return NULL;
                        }
                } else {
                        if (actInterface < 0) {
                                actInterface = i;
                                maxPS = endpoint->wMaxPacketSize;
                                if (debug > 0)
                                        info("Active setting=%d. maxPS=%d.", i, maxPS);
                        } else
                                err("More than one active alt. setting! Ignoring #%d.", i);
                }
        }
        if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) {
                err("Failed to recognize the camera!");
                return NULL;
        }

        /* Validate options */
        switch (model) {
        case IBMCAM_MODEL_1:
                RESTRICT_TO_RANGE(lighting, 0, 2);
                RESTRICT_TO_RANGE(size, SIZE_128x96, SIZE_352x288);
                if (framerate < 0)
                        framerate = 2;
                canvasX = 352;
                canvasY = 288;
                break;
        case IBMCAM_MODEL_2:
                RESTRICT_TO_RANGE(lighting, 0, 15);
                RESTRICT_TO_RANGE(size, SIZE_176x144, SIZE_352x240);
                if (framerate < 0)
                        framerate = 2;
                canvasX = 352;
                canvasY = 240;
                break;
        case IBMCAM_MODEL_3:
                RESTRICT_TO_RANGE(lighting, 0, 15); /* FIXME */
                switch (size) {
                case SIZE_160x120:
                        canvasX = 160;
                        canvasY = 120;
                        if (framerate < 0)
                                framerate = 2;
                        RESTRICT_TO_RANGE(framerate, 0, 5);
                        break;
                default:
                        info("IBM camera: using 320x240");
                        size = SIZE_320x240;
                        /* No break here */
                case SIZE_320x240:
                        canvasX = 320;
                        canvasY = 240;
                        if (framerate < 0)
                                framerate = 3;
                        RESTRICT_TO_RANGE(framerate, 0, 5);
                        break;
                case SIZE_640x480:
                        canvasX = 640;
                        canvasY = 480;
                        framerate = 0;  /* Slowest, and maybe even that is too fast */
                        break;
                }
                break;
        case IBMCAM_MODEL_4:
                RESTRICT_TO_RANGE(lighting, 0, 2);
                switch (size) {
                case SIZE_128x96:
                        canvasX = 128;
                        canvasY = 96;
                        break;
                case SIZE_160x120:
                        canvasX = 160;
                        canvasY = 120;
                        break;
                default:
                        info("IBM NetCamera: using 176x144");
                        size = SIZE_176x144;
                        /* No break here */
                case SIZE_176x144:
                        canvasX = 176;
                        canvasY = 144;
                        break;
                case SIZE_320x240:
                        canvasX = 320;
                        canvasY = 240;
                        break;
                case SIZE_352x288:
                        canvasX = 352;
                        canvasY = 288;
                        break;
                }
                break;
        default:
                err("IBM camera: Model %d. not supported!", model);
                return NULL;
        }

        /* Code below may sleep, need to lock module while we are here */
        MOD_INC_USE_COUNT;
        uvd = usbvideo_AllocateDevice(cams);
        if (uvd != NULL) {
                /* Here uvd is a fully allocated uvd object */
                uvd->flags = flags;
                uvd->debug = debug;
                uvd->dev = dev;
                uvd->iface = ifnum;
                uvd->ifaceAltInactive = inactInterface;
                uvd->ifaceAltActive = actInterface;
                uvd->video_endp = video_ep;
                uvd->iso_packet_len = maxPS;
                uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24;
                uvd->defaultPalette = VIDEO_PALETTE_RGB24;
                uvd->canvas = VIDEOSIZE(canvasX, canvasY);
                uvd->videosize = ibmcam_size_to_videosize(size);

                /* Initialize ibmcam-specific data */
                assert(IBMCAM_T(uvd) != NULL);
                IBMCAM_T(uvd)->camera_model = model;
                IBMCAM_T(uvd)->initialized = 0;

                ibmcam_configure_video(uvd);

                i = usbvideo_RegisterVideoDevice(uvd);
                if (i != 0) {
                        err("usbvideo_RegisterVideoDevice() failed.");
                        uvd = NULL;
                }
        }
        MOD_DEC_USE_COUNT;
        return uvd;
}


static struct usb_device_id id_table[] = {
        { USB_DEVICE_VER(IBMCAM_VENDOR_ID, IBMCAM_PRODUCT_ID, 0x0002, 0x0002) },        /* Model 1 */
        { USB_DEVICE_VER(IBMCAM_VENDOR_ID, IBMCAM_PRODUCT_ID, 0x030a, 0x030a) },        /* Model 2 */
        { USB_DEVICE_VER(IBMCAM_VENDOR_ID, IBMCAM_PRODUCT_ID, 0x0301, 0x0301) },        /* Model 3 */
        { USB_DEVICE_VER(IBMCAM_VENDOR_ID, NETCAM_PRODUCT_ID, 0x030a, 0x030a) },        /* Model 4 */
        { USB_DEVICE_VER(IBMCAM_VENDOR_ID, VEO_800C_PRODUCT_ID, 0x030a, 0x030a) },      /* Model 2 */
        { USB_DEVICE_VER(IBMCAM_VENDOR_ID, VEO_800D_PRODUCT_ID, 0x030a, 0x030a) },      /* Model 4 */
        { }  /* Terminating entry */
};

/*
 * ibmcam_init()
 *
 * This code is run to initialize the driver.
 *
 * History:
 * 1/27/00  Reworked to use statically allocated ibmcam structures.
 * 21/10/00 Completely redesigned to use usbvideo services.
 */
static int __init ibmcam_init(void)
{
        struct usbvideo_cb cbTbl;
        memset(&cbTbl, 0, sizeof(cbTbl));
        cbTbl.probe = ibmcam_probe;
        cbTbl.setupOnOpen = ibmcam_setup_on_open;
        cbTbl.videoStart = ibmcam_video_start;
        cbTbl.videoStop = ibmcam_video_stop;
        cbTbl.processData = ibmcam_ProcessIsocData;
        cbTbl.postProcess = usbvideo_DeinterlaceFrame;
        cbTbl.adjustPicture = ibmcam_adjust_picture;
        cbTbl.getFPS = ibmcam_calculate_fps;
        return usbvideo_register(
                &cams,
                MAX_IBMCAM,
                sizeof(ibmcam_t),
                "ibmcam",
                &cbTbl,
                THIS_MODULE,
                id_table);
}

static void __exit ibmcam_cleanup(void)
{
        usbvideo_Deregister(&cams);
}

MODULE_DEVICE_TABLE(usb, id_table);

module_init(ibmcam_init);
module_exit(ibmcam_cleanup);